2530 files changed, 193376 insertions, 111666 deletions

diff --git a/.gitignore b/.gitignore
index 6acab19251..cd6785a8ec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,13 +8,10 @@ doc/_build/
 *.bc
 
 # Android specific
-platform/android/java/build.gradle
 platform/android/java/.gradle
 platform/android/java/.gradletasknamecache
 platform/android/java/local.properties
 platform/android/java/project.properties
-platform/android/java/build.gradle
-platform/android/java/AndroidManifest.xml
 platform/android/java/libs/*
 platform/android/java/assets
 platform/android/java/.idea/*
@@ -43,12 +40,14 @@ gmon.out
 *.swo
 *.swp
 
-# QT project files
+# Qt project files
 *.config
 *.creator
 *.creator.*
 *.files
 *.includes
+*.cflags
+*.cxxflags
 
 # Eclipse CDT files
 .cproject
diff --git a/.travis.yml b/.travis.yml
index 65565db6f1..727567b8e7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,7 +27,7 @@ matrix:
           packages:
             - clang-format-6.0
 
-    - env: PLATFORM=x11 TOOLS=yes TARGET=debug CACHE_NAME=${PLATFORM}-tools-mono-gcc-8 MATRIX_EVAL="CC=gcc-8 && CXX=g++-8" EXTRA_ARGS="module_mono_enabled=yes mono_glue=no werror=yes"
+    - env: PLATFORM=x11 TOOLS=yes TARGET=debug CACHE_NAME=${PLATFORM}-tools-mono-gcc-8 MATRIX_EVAL="CC=gcc-8 && CXX=g++-8" EXTRA_ARGS="module_mono_enabled=yes mono_glue=no warnings=extra werror=yes"
       os: linux
       compiler: gcc-8
       addons:
@@ -49,7 +49,7 @@ matrix:
           build_command: "scons p=x11 -j2 $OPTIONS"
           branch_pattern: coverity_scan
 
-    - env: PLATFORM=x11 TOOLS=no TARGET=release CACHE_NAME=${PLATFORM}-clang EXTRA_ARGS="werror=yes"
+    - env: PLATFORM=x11 TOOLS=no TARGET=release CACHE_NAME=${PLATFORM}-clang EXTRA_ARGS="warnings=extra werror=yes"
       os: linux
       compiler: clang
       addons:
@@ -57,7 +57,7 @@ matrix:
           packages:
             - *linux_deps
 
-    - env: PLATFORM=android TOOLS=no TARGET=release_debug CACHE_NAME=${PLATFORM}-clang EXTRA_ARGS="werror=yes"
+    - env: PLATFORM=android TOOLS=no TARGET=release_debug CACHE_NAME=${PLATFORM}-clang EXTRA_ARGS="warnings=extra werror=yes"
       os: linux
       compiler: clang
 
@@ -69,7 +69,7 @@ matrix:
       os: osx
       compiler: clang
 
-    - env: PLATFORM=server TOOLS=yes TARGET=release_debug CACHE_NAME=${PLATFORM}-tools-gcc-8 MATRIX_EVAL="CC=gcc-8 && CXX=g++-8" EXTRA_ARGS="werror=yes"
+    - env: PLATFORM=server TOOLS=yes TARGET=release_debug CACHE_NAME=${PLATFORM}-tools-gcc-8 MATRIX_EVAL="CC=gcc-8 && CXX=g++-8" EXTRA_ARGS="warnings=extra werror=yes"
       os: linux
       compiler: gcc-8
       addons:
diff --git a/AUTHORS.md b/AUTHORS.md
index b7eca2d9b1..ba563eb507 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -45,6 +45,7 @@ name is available.
     Błażej Szczygieł (zaps166)
     Bojidar Marinov (bojidar-bg)
     bruvzg
+    Camille Mohr-Daurat (pouleyKetchoupp)
     Carl Olsson (not-surt)
     Carter Anderson (cart)
     Chris Bradfield (cbscribe)
@@ -88,6 +89,7 @@ name is available.
     Kostadin Damyanov (Max-Might)
     K. S. Ernest (iFire) Lee (fire)
     Leon Krause (eska014)
+    Lucien Menassol (Kanabenki)
     m4nu3lf
     Marcelo Fernandez (marcelofg55)
     Marc Gilleron (Zylann)
@@ -115,6 +117,7 @@ name is available.
     Pieter-Jan Briers (PJB3005)
     Poommetee Ketson (Noshyaar)
     Przemysław Gołąb (n-pigeon)
+    Rafał Mikrut (qarmin)
     Ralf Hölzemer (rollenrolm)
     Ramesh Ravone (RameshRavone)
     Ray Koopa (RayKoopa)
@@ -131,6 +134,7 @@ name is available.
     Thomas Herzog (karroffel)
     Timo (toger5)
     Timo Schwarzer (timoschwarzer)
+    Tomasz Chabora (KoBeWi)
     Vinzenz Feenstra (vinzenz)
     박한얼 (volzhs)
     V. Vamsi Krishna (vkbsb)
diff --git a/CODEOWNERS b/CODEOWNERS
index e25eefb1dd..399fca03e8 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -2,8 +2,6 @@
 # Each line is a file pattern followed by one or more owners.
 # Owners can be @users, @org/teams or emails
 
-/core/               @reduz
-
 /doc/                @godotengine/documentation
 doc_classes/*        @godotengine/documentation
 
@@ -22,22 +20,19 @@ doc_classes/*        @godotengine/documentation
 /drivers/winmidi/    @marcelofg55
 /drivers/xaudio2/    @marcelofg55
 
-# Porting
-/drivers/unix/       @reduz @hpvb
-/drivers/windows/    @reduz @hpvb
+/drivers/unix/       @hpvb
+/drivers/windows/    @hpvb
 
 /editor/icons/       @djrm
 
-/main/               @reduz
-
 /misc/               @akien-mga
 
 /modules/bullet/     @AndreaCatania
-/modules/csg/        @reduz @BastiaanOlij
+/modules/csg/        @BastiaanOlij
 /modules/enet/       @godotengine/network
 /modules/gdnative/   @karroffel
 /modules/gdnative/*arvr/ @BastiaanOlij
-/modules/gdscript/   @reduz @vnen @bojidar-bg
+/modules/gdscript/   @vnen @bojidar-bg
 /modules/mbedtls/    @godotengine/network
 /modules/mobile_vr/  @BastiaanOlij
 /modules/mono/       @neikeq
@@ -49,8 +44,6 @@ doc_classes/*        @godotengine/documentation
 /platform/javascript/ @eska014
 /platform/uwp/       @vnen
 
-/scene/main/         @reduz
-
 /server/physics*/    @reduz @AndreaCatania
 /server/visual*/     @reduz @karroffel
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 04e42d14b6..c27bee2b5c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -18,7 +18,7 @@ each of them.
 Everything referred to hereafter as "bug" also applies for feature requests.
 
 If you are reporting a new issue, you will make our life much simpler (and the
-fix come much sooner) by following those guidelines:
+fix come much sooner) by following these guidelines:
 
 #### Search first in the existing database
 
@@ -51,7 +51,7 @@ understand that:
   and then figure out why it's failing.
 
 To speed up our work, please prepare for us **a simple project** that isolates
-and reproduces the issue. This is always the **the best way for us to fix it**.
+and reproduces the issue. This is always the **best way for us to fix it**.
 You can attach a zip file with the minimal project directly to the bug report,
 by drag and dropping the file in the GitHub edition field.
 
diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
index 8b263a2d2c..5431e2b403 100644
--- a/COPYRIGHT.txt
+++ b/COPYRIGHT.txt
@@ -110,6 +110,11 @@ Copyright: 2007, Starbreeze Studios
  2014-2019, Godot Engine contributors.
 License: Expat and Zlib
 
+Files: ./thirdparty/assimp/
+Comment: Open Asset Import Library (assimp)
+Copyright: 2006-2016, assimp team
+License: BSD-3-clause
+
 Files: ./thirdparty/b2d_convexdecomp/
 Comment: Box2D (ConvexDecomp)
 Copyright: 2007, Eric Jordan
@@ -180,8 +185,8 @@ License: BSD-3-clause
 
 Files: ./thirdparty/libpng/
 Comment: libpng
-Copyright: 1995-2018, The PNG Reference Library Authors.
- 2018, Cosmin Truta.
+Copyright: 1995-2019, The PNG Reference Library Authors.
+ 2018-2019, Cosmin Truta.
  2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  1996-1997, Andreas Dilger.
  1995-1996, Guy Eric Schalnat, Group 42, Inc.
@@ -369,17 +374,25 @@ Comment: libSquish
 Copyright: 2006, Simon Brown
 License: Expat
 
-Files: ./thirdparty/thekla_atlas/
-Comment: Thekla Atlas
-Copyright: 2013, Thekla, Inc
-License: Expat
-
 Files: ./thirdparty/tinyexr/
 Comment: TinyEXR
 Copyright: 2014-2018, Syoyo Fujita
   2002, Industrial Light & Magic, a division of Lucas Digital Ltd. LLC
 License: BSD-3-clause
 
+Files: ./thirdparty/vhacd/
+Comment: V-HACD
+Copyright: 2011, Khaled Mamou
+  2003-2009, Erwin Coumans
+License: BSD-3-clause
+
+Files: ./thirdparty/xatlas/
+Comment: xatlas
+Copyright: 2018, Jonathan Young
+  2013, Thekla, Inc
+  2006, NVIDIA Corporation, Ignacio Castano
+License: Expat
+
 Files: ./thirdparty/zlib/
 Comment: zlib
 Copyright: 1995-2017, Jean-loup Gailly and Mark Adler
diff --git a/DONORS.md b/DONORS.md
index 05d7f3b7c1..95c46c139b 100644
--- a/DONORS.md
+++ b/DONORS.md
@@ -18,69 +18,70 @@ generous deed immortalized in the next stable release of Godot Engine.
 
     Gamblify <https://www.gamblify.com>
     Image Campus <https://www.imagecampus.edu.ar>
-    Yakaz.com <https://yakaz.com>
 
 ## Mini sponsors
 
     Alan Beauchamp
     Anandarup Mallik
     Andrew Dunai
-    Arda Erol
     Brandon Lamb
     Christian Uldall Pedersen
     Christoph Woinke
+    Connor Hill
+    Denis Malyavin
     Edward Flick
     GameDev.net
     GameDev.tv
     Hein-Pieter van Braam
-    Jamal Alyafei
+    Jacob McKenney
     Javary Games
     Jay Sistar
     Justin Arnold
     Kyle Szklenski
     Leonard Meagher
-    Ludosity AB
     Matthieu Huvé
     Maxim Karsten
     Mike King
-    Nathan Warden
     Neal Gompa (Conan Kudo)
     Patrick Aarstad
     "Rainway "
-    Ruslan Mustakov
     Slobodan Milnovic
     StarFlare Software
     Stephan Lanfermann
-    Stoney Meyerhoeffer
-    thechris
+    Stephen Telford
+    Steve
+    TigerJ
     VilliHaukka
+    Xananax
     Zashi
 
 ## Gold donors
 
-    Asdf
+    Andrei
     Brandon Waite
     cheese65536
     David Gehrig
+    Ed Morley
     Florian Krick
+    Grady
     Jakub Grzesik
     K9Kraken
     Manuele Finocchiaro
-    Nathanael Beisiegel
     Officine Pixel S.n.c.
     Retro Village
+    Sofox
     Zaven Muradyan
 
+    Alexander Trey Saunders
     Allen Schade
     Andreas Schüle
     Asher Glick
     Austen McRae
     Daniel James
-    Daniel Lynn
     David Giardi
+    David Graham
     Edward E
     Florian Breisch
-    Gary Oberbrunner
     Gero
     Jay Horton
     Jon Smith
@@ -88,64 +89,73 @@ generous deed immortalized in the next stable release of Godot Engine.
     Jorge Bernal
     Joshua Lesperance
     Justo Delgado Baudí
+    Karl Werf
+    Kommentgames
     Krzysztof Dluzniewski
+    Luke
     Moonwards
     Mored1984
-    Not Invader Zim
     paul gruenbacher
     Paul LaMotte
     Rob Messick
+    Ross Esmond
+    Ryan Badour
     Scott Wadden
     Sergey
     Svenne Krap
     Tom Langwaldt
     William Wold
     Wyatt Goodin
-    Xananax
 
-    BanjoNode2D
-    Beliar
+    Chris Goddard
     Chris Serino
     Christian Padilla
     Conrad Curry
     Craig Smith
     Daniel Egger
     Dean Harmon
+    Ian Richard Kunert
     Ivan Trombley
     Joan Fons
     Krzysztof Jankowski
     Lord Bloodhound
     Lucas Ferreira Franca
+    Michele Zilli
     Nathan Lundquist
     Pascal Grüter
     Petr Malac
     Rami
+    Reneator
     Robert Willes
     Robin Arys
     Ronnie Ashlock
     ScottMakesGames
     Thomas Bjarnelöf
+    Vincent Henderson
     Wojciech Chojnacki
     Xavier PATRICELLI
 
     Alessandra Pereyra
     Alexey Dyadchenko
     Andrew Bowen
+    Asdf
     Benjamin W Flint
-    Chau Siu Hung
-    Chris Goddard
+    Carlos de Sousa Marques
     Chris Petrich
     Christian Leth Jeppesen
+    Christoph Schröder
     Cody Parker
     ComicSads
     D
+    Daniel
+    Daniel Eichler
     Deadly Lampshade
-    E.G.
     Eric
     Eric Monson
     Ethan Bennis
     Eugenio Hugo Salgüero Jáñez
     flesk
+    Francisco Javier Moreno Carracedo
     gavlig
     GGGames.org
     Giles Montgomery
@@ -153,66 +163,80 @@ generous deed immortalized in the next stable release of Godot Engine.
     Guilherme Felipe de C. G. da Silva
     Heath Hayes
     Hysteria
-    Jalal Chaabane
-    Jeppe Zapp
     Jose Malheiro
+    Joshua Flores
     Juan T Chen
     Juraj Móza
     Kasper Jeppesen
+    Klaus The.
     Klavdij Voncina
     Leandro Voltolino
-    Lukáš Rendvanský
+    Maarten Elings
+    Malcolm Peralty
     Marius Kamm
+    Markus Fehr
     Markus Wiesner
     Martin Eigel
     Marvin
     Matt Eunson
+    Matthew Hillier
     Max R.R. Collada
+    M H
     Nick Nikitin
     Oliver Dick
-    oziatek
     Paul Hocker
     Paul Von Zimmerman
     Pete Goodwin
     Ranoller
-    ray-tracer
-    Ruben Soares Luis
     Samuel Judd
-    Sofox
+    Scott Pilet
     spilldata
     Stoned Xander
+    Thomas Krampl
     Tobias Bocanegra
+    Urho
     WytRabbit
     Xavier Fumado Beltran
+    yuanzhe zhou
 
 ## Silver donors
 
     1D_Inc
+    Abraham Haskins
     Adam Brunnmeier
     Adam  Carr
     Adam Nakonieczny
     Adam Smeltzer
     Adisibio
+    Aidan O'Flannagain
     Alder Stefano
     Alessandro Senese
     Alexander Gillberg
     Alexander Koppe
+    Alex Davies-Moore
     Alice Robinson
+    Andreas Evers
     Andreas Krampitz
+    Andrew Peart
     Anthony Bongiovanni
-    Arbor Interactive
+    Anthony Staunton
+    Antony K. Jones
+    Arda Erol
     Arthur S. Muszynski
     Aubrey Falconer
     Avencherus
-    Bailey
     Balázs Batári
     Bastian Böhm
+    Beliar
     Benedikt
+    Ben Phelan
     Ben Vercammen
     Bernd Jänichen
+    Black Block
     Blair Allen
-    Brandon
-    Brandon Schaffer
+    Bobby CC Wong
+    Boyquotes
+    Branwen Zak
     Bryan Stevenson
     Carl Winder
     Carwyn Edwards
@@ -221,44 +245,63 @@ generous deed immortalized in the next stable release of Godot Engine.
     Christian Baune
     Christian Winter
     Christoffer Sundbom
+    Christopher Fisher
     Chris Wilson
+    Clay Heaton
+    Cobaltum
     Collin Shooltz
-    Connor Hill
+    Dag Sundin Söderström
     Daniel Johnson
-    DanielMaximiano
     Daniel Reed
+    Danny Welch
+    Dave Watts
+    David Bullock
     David Cravens
     David May
+    Dimitri Stanojevic
     Dominik Wetzel
     Duobix
     Edward Herbert
+    E.G.
     Egon Elbre
+    Ellen Marie Dash
     Elmeri '- Duy Kevin Nguyen
     Emanuel Kotzayan
+    Eric Ellingson
     Eric Martini
     Eric McCarthy
     Eric Williams
-    Fabian Becker
+    Fabian Lökes
+    Felix Kollmann
     fengjiongmax
     Foomf
     G3Dev sàrl
+    Gary Hulst
     Gerrit Großkopf
+    gmmath
     Grant Clarke
     Greg Olson
+    Greg Pennefather
     Guldoman
-    Haley Aycock
     Heribert Hirth
     Hiroshi Naruo
+    HMan
     Hunter Jones
     ialex32x
     Igor Buzatovic
+    Iiari
+    Isaac Morton
     Jaime Ruiz-Borau Vizárraga
     Jako Danar
     James A F Manley
+    Jax
     Jeff Hungerford
+    Jeff Nyte
     Jeremy Kahn
     Jesse Dubay
+    Joe Alden
     Joel Fivat
+    Joel Setterberg
     Johannes Wuensch
     Jonas Rudlang
     Jonas Yamazaki
@@ -267,14 +310,14 @@ generous deed immortalized in the next stable release of Godot Engine.
     Jonathon
     Jon Bonazza
     Jon Sully
+    Jose Aleman
     Josh 'Cheeseness' Bush
     Juanfran
     Juan Negrier
     Judd
     Julian Murgia
-    Kajornthep Piyanun
     KC Chan
-    Kevin Boyer
+    kickmaniac
     Kiyohiro Kawamura (kyorohiro)
     Klagsam
     KR McGinley
@@ -283,16 +326,19 @@ generous deed immortalized in the next stable release of Godot Engine.
     kycho
     Levi Lindsey
     Linus Lind Lundgren
+    Lionel Gaillard
     Luis Moraes
     Macil
     magodev
     Major Haul
     Malcolm
+    Malik Ahmed
     Markus Michael Egger
-    Matthias Grandis
-    Matt Welke
+    Martin Holas
+    Matthew Little
     Maxwell
     medecau
+    Menno Finlay-Smits
     Mertcan Mermerkaya
     mhilbrunner
     Michael Dürwald
@@ -300,66 +346,84 @@ generous deed immortalized in the next stable release of Godot Engine.
     Michael Labbe
     Mikael Olsson
     Mikayla Hutchinson
+    Mike Cunningham
     MoM
     Moritz Laass
     Moritz Weissenberger
+    MuffinManKen
     Natrim
     nee
     Neil Blakey-Milner
     Nerdforge
-    Nick Pavlica
     Niclas Eriksen
     Nicolás Montaña
     Nicolas SAN AGUSTIN
+    Nithin Jino
+    NZ
     Oscar Norlander
     Pan Ip
+    Patrick Forringer
     Patrick Nafarrete
     Paul Gieske
     Paul Mason
     Paweł Kowal
-    Phillip Ryals
+    Philip O. Staiger
     Pierre-Igor Berthet
     Pietro Vertechi
     Piotr Kaczmarski
-    Prokhorenko Leonid
-    Psyagnostic
-    Rafael
+    Pitsanu Tongprasin
+    Poryg
+    Raphael Leroux
+    Red Hara
     Rémi Verschelde
     Ricardo Alcantara
-    Richman Stewart
+    Rob Crowle
     Robert Farr (Larington)
+    Robert Hernandez
+    Rodrigo Loli
     Roger Burgess
     Roger Smith
     Roland RzÄ…sa
     Roman Tinkov
-    Ryan Cheung
+    Ryan Groom
     Ryan Hentz
+    Saad Khoudmi
+    Samdze
     Sasori Olkof
+    Scott D. Yelich
     Sebastian Michailidis
+    Shane Sicienski
     Shane Spoor
     Simon Wenner
+    SK
     Sootstone
     Theo Cranmore
     Thibault Barbaroux
+    thomas
     Thomas Bell
-    Thomas Holmes
     Thomas Kelly
     Thomas Kurz
     tiansheng li
     Tim
     Tim Drumheller
+    Tim Gudex
+    Timo Schmidt
     Tom Larrow
     Torsten Crass
+    Travis O'Brien
     Tryggve Sollid
-    Tyler Stafos
+    Tyler Strafos
     UltyX
     Vaiktorg
+    Veodok
     Victor
+    Vigilant Watch
     Viktor Ferenczi
     waka nya
     Wayne Haak
     werner mendizabal
-    William Gervasio
+    Wiley Thompson
+    Will
     William Hogben
     Wout Standaert
 
diff --git a/README.md b/README.md
index 06380b5e0a..8cfab51d58 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Before being open sourced in February 2014, Godot had been developed by Juan
 Linietsky and Ariel Manzur (both still maintaining the project) for several
 years as an in-house engine, used to publish several work-for-hire titles.
 
-![Screenshot of a 3D scene in Godot Engine](https://download.tuxfamily.org/godotengine/media/screenshots/editor_3d_fracteed.jpg)
+![Screenshot of a 3D scene in Godot Engine](https://raw.githubusercontent.com/godotengine/godot-design/master/screenshots/editor_tps_demo_1920x1080.jpg)
 
 ### Getting the engine
 
diff --git a/SConstruct b/SConstruct
index 55b061a6f7..3ff6bb739a 100644
--- a/SConstruct
+++ b/SConstruct
@@ -5,7 +5,6 @@ EnsureSConsVersion(0, 98, 1)
 # System
 import glob
 import os
-import string
 import sys
 
 # Local
@@ -67,20 +66,6 @@ if 'TERM' in os.environ:
     env_base['ENV']['TERM'] = os.environ['TERM']
 env_base.AppendENVPath('PATH', os.getenv('PATH'))
 env_base.AppendENVPath('PKG_CONFIG_PATH', os.getenv('PKG_CONFIG_PATH'))
-env_base.android_maven_repos = []
-env_base.android_flat_dirs = []
-env_base.android_dependencies = []
-env_base.android_gradle_plugins = []
-env_base.android_gradle_classpath = []
-env_base.android_java_dirs = []
-env_base.android_res_dirs = []
-env_base.android_asset_dirs = []
-env_base.android_aidl_dirs = []
-env_base.android_jni_dirs = []
-env_base.android_default_config = []
-env_base.android_manifest_chunk = ""
-env_base.android_permission_chunk = ""
-env_base.android_appattributes_chunk = ""
 env_base.disabled_modules = []
 env_base.use_ptrcall = False
 env_base.split_drivers = False
@@ -88,20 +73,6 @@ env_base.split_modules = False
 env_base.module_version_string = ""
 env_base.msvc = False
 
-env_base.__class__.android_add_maven_repository = methods.android_add_maven_repository
-env_base.__class__.android_add_flat_dir = methods.android_add_flat_dir
-env_base.__class__.android_add_dependency = methods.android_add_dependency
-env_base.__class__.android_add_java_dir = methods.android_add_java_dir
-env_base.__class__.android_add_res_dir = methods.android_add_res_dir
-env_base.__class__.android_add_asset_dir = methods.android_add_asset_dir
-env_base.__class__.android_add_aidl_dir = methods.android_add_aidl_dir
-env_base.__class__.android_add_jni_dir = methods.android_add_jni_dir
-env_base.__class__.android_add_default_config = methods.android_add_default_config
-env_base.__class__.android_add_to_manifest = methods.android_add_to_manifest
-env_base.__class__.android_add_to_permissions = methods.android_add_to_permissions
-env_base.__class__.android_add_to_attributes = methods.android_add_to_attributes
-env_base.__class__.android_add_gradle_plugin = methods.android_add_gradle_plugin
-env_base.__class__.android_add_gradle_classpath = methods.android_add_gradle_classpath
 env_base.__class__.disable_module = methods.disable_module
 
 env_base.__class__.add_module_version_string = methods.add_module_version_string
@@ -181,7 +152,6 @@ opts.Add(BoolVariable('builtin_opus', "Use the built-in Opus library", True))
 opts.Add(BoolVariable('builtin_pcre2', "Use the built-in PCRE2 library)", True))
 opts.Add(BoolVariable('builtin_recast', "Use the built-in Recast library", True))
 opts.Add(BoolVariable('builtin_squish', "Use the built-in squish library", True))
-opts.Add(BoolVariable('builtin_thekla_atlas', "Use the built-in thekla_altas library", True))
 opts.Add(BoolVariable('builtin_xatlas', "Use the built-in xatlas library", True))
 opts.Add(BoolVariable('builtin_zlib', "Use the built-in zlib library", True))
 opts.Add(BoolVariable('builtin_zstd', "Use the built-in Zstd library", True))
@@ -191,8 +161,8 @@ opts.Add("CXX", "C++ compiler")
 opts.Add("CC", "C compiler")
 opts.Add("LINK", "Linker")
 opts.Add("CCFLAGS", "Custom flags for both the C and C++ compilers")
-opts.Add("CXXFLAGS", "Custom flags for the C++ compiler")
 opts.Add("CFLAGS", "Custom flags for the C compiler")
+opts.Add("CXXFLAGS", "Custom flags for the C++ compiler")
 opts.Add("LINKFLAGS", "Custom flags for the linker")
 
 # add platform specific options
@@ -219,7 +189,7 @@ Help(opts.GenerateHelpText(env_base))  # generate help
 
 # add default include paths
 
-env_base.Append(CPPPATH=['#editor', '#'])
+env_base.Prepend(CPPPATH=['#', '#editor'])
 
 # configure ENV for platform
 env_base.platform_exporters = platform_exporters
@@ -301,17 +271,18 @@ if selected_platform in platform_list:
 
     CCFLAGS = env.get('CCFLAGS', '')
     env['CCFLAGS'] = ''
-
     env.Append(CCFLAGS=str(CCFLAGS).split())
 
     CFLAGS = env.get('CFLAGS', '')
     env['CFLAGS'] = ''
-
     env.Append(CFLAGS=str(CFLAGS).split())
 
+    CXXFLAGS = env.get('CXXFLAGS', '')
+    env['CXXFLAGS'] = ''
+    env.Append(CXXFLAGS=str(CXXFLAGS).split())
+
     LINKFLAGS = env.get('LINKFLAGS', '')
     env['LINKFLAGS'] = ''
-
     env.Append(LINKFLAGS=str(LINKFLAGS).split())
 
     flag_list = platform_flags[selected_platform]
@@ -342,12 +313,26 @@ if selected_platform in platform_list:
         shadow_local_warning = []
         all_plus_warnings = ['-Wwrite-strings']
 
-        if methods.use_gcc(env):
+        if methods.using_gcc(env):
             version = methods.get_compiler_version(env)
             if version != None and version[0] >= '7':
                 shadow_local_warning = ['-Wshadow-local']
+
         if (env["warnings"] == 'extra'):
-            env.Append(CCFLAGS=['-Wall', '-Wextra'] + all_plus_warnings + shadow_local_warning)
+            # FIXME: enable -Wclobbered once #26351 is fixed
+            # FIXME: enable -Wduplicated-branches once #27594 is merged
+            # Note: enable -Wimplicit-fallthrough for Clang (already part of -Wextra for GCC)
+            # once we switch to C++11 or later (necessary for our FALLTHROUGH macro).
+            env.Append(CCFLAGS=['-Wall', '-Wextra', '-Wno-unused-parameter']
+                + all_plus_warnings + shadow_local_warning)
+            env.Append(CXXFLAGS=['-Wctor-dtor-privacy', '-Wnon-virtual-dtor'])
+            if methods.using_gcc(env):
+                env.Append(CCFLAGS=['-Wno-clobbered', '-Walloc-zero',
+                    '-Wduplicated-cond', '-Wstringop-overflow=4', '-Wlogical-op'])
+                env.Append(CXXFLAGS=['-Wnoexcept', '-Wplacement-new=1'])
+                version = methods.get_compiler_version(env)
+                if version != None and version[0] >= '9':
+                    env.Append(CCFLAGS=['-Wattribute-alias=2'])
         elif (env["warnings"] == 'all'):
             env.Append(CCFLAGS=['-Wall'] + shadow_local_warning)
         elif (env["warnings"] == 'moderate'):
diff --git a/core/SCsub b/core/SCsub
index 00d0bcac24..06efc8408d 100644
--- a/core/SCsub
+++ b/core/SCsub
@@ -80,9 +80,9 @@ if env['builtin_zlib']:
 	]
 	thirdparty_zlib_sources = [thirdparty_zlib_dir + file for file in thirdparty_zlib_sources]
 
-	env_thirdparty.Append(CPPPATH=[thirdparty_zlib_dir])
+	env_thirdparty.Prepend(CPPPATH=[thirdparty_zlib_dir])
 	# Needs to be available in main env too
-	env.Append(CPPPATH=[thirdparty_zlib_dir])
+	env.Prepend(CPPPATH=[thirdparty_zlib_dir])
 
 	env_thirdparty.add_source_files(env.core_sources, thirdparty_zlib_sources)
 
@@ -128,11 +128,11 @@ if env['builtin_zstd']:
     ]
     thirdparty_zstd_sources = [thirdparty_zstd_dir + file for file in thirdparty_zstd_sources]
 
-    env_thirdparty.Append(CPPPATH=[thirdparty_zstd_dir, thirdparty_zstd_dir + "common"])
-    env_thirdparty.Append(CCFLAGS="-DZSTD_STATIC_LINKING_ONLY")
-    env.Append(CPPPATH=thirdparty_zstd_dir)
+    env_thirdparty.Prepend(CPPPATH=[thirdparty_zstd_dir, thirdparty_zstd_dir + "common"])
+    env_thirdparty.Append(CPPFLAGS="-DZSTD_STATIC_LINKING_ONLY")
+    env.Prepend(CPPPATH=thirdparty_zstd_dir)
     # Also needed in main env includes will trigger warnings
-    env.Append(CCFLAGS="-DZSTD_STATIC_LINKING_ONLY")
+    env.Append(CPPFLAGS="-DZSTD_STATIC_LINKING_ONLY")
 
     env_thirdparty.add_source_files(env.core_sources, thirdparty_zstd_sources)
 
diff --git a/core/array.cpp b/core/array.cpp
index 649e610a69..65934d6ec9 100644
--- a/core/array.cpp
+++ b/core/array.cpp
@@ -401,6 +401,10 @@ Variant Array::max() const {
 	return maxval;
 }
 
+const void *Array::id() const {
+	return _p->array.ptr();
+}
+
 Array::Array(const Array &p_from) {
 
 	_p = NULL;
diff --git a/core/array.h b/core/array.h
index 6158db4065..d4e937a486 100644
--- a/core/array.h
+++ b/core/array.h
@@ -94,6 +94,8 @@ public:
 	Variant min() const;
 	Variant max() const;
 
+	const void *id() const;
+
 	Array(const Array &p_from);
 	Array();
 	~Array();
diff --git a/core/bind/core_bind.cpp b/core/bind/core_bind.cpp
index f5dbacd62d..ba595b9627 100644
--- a/core/bind/core_bind.cpp
+++ b/core/bind/core_bind.cpp
@@ -148,7 +148,7 @@ _ResourceLoader::_ResourceLoader() {
 	singleton = this;
 }
 
-Error _ResourceSaver::save(const String &p_path, const RES &p_resource, uint32_t p_flags) {
+Error _ResourceSaver::save(const String &p_path, const RES &p_resource, SaverFlags p_flags) {
 
 	ERR_FAIL_COND_V(p_resource.is_null(), ERR_INVALID_PARAMETER);
 	return ResourceSaver::save(p_path, p_resource, p_flags);
@@ -792,7 +792,7 @@ Dictionary _OS::get_datetime_from_unix_time(int64_t unix_time_val) const {
 
 	size_t imonth = 0;
 
-	while (dayno >= MONTH_DAYS_TABLE[LEAPYEAR(year)][imonth]) {
+	while ((unsigned long)dayno >= MONTH_DAYS_TABLE[LEAPYEAR(year)][imonth]) {
 		dayno -= MONTH_DAYS_TABLE[LEAPYEAR(year)][imonth];
 		imonth++;
 	}
@@ -1579,7 +1579,7 @@ _Geometry::_Geometry() {
 
 ///////////////////////// FILE
 
-Error _File::open_encrypted(const String &p_path, int p_mode_flags, const Vector<uint8_t> &p_key) {
+Error _File::open_encrypted(const String &p_path, ModeFlags p_mode_flags, const Vector<uint8_t> &p_key) {
 
 	Error err = open(p_path, p_mode_flags);
 	if (err)
@@ -1596,7 +1596,7 @@ Error _File::open_encrypted(const String &p_path, int p_mode_flags, const Vector
 	return OK;
 }
 
-Error _File::open_encrypted_pass(const String &p_path, int p_mode_flags, const String &p_pass) {
+Error _File::open_encrypted_pass(const String &p_path, ModeFlags p_mode_flags, const String &p_pass) {
 
 	Error err = open(p_path, p_mode_flags);
 	if (err)
@@ -1614,7 +1614,7 @@ Error _File::open_encrypted_pass(const String &p_path, int p_mode_flags, const S
 	return OK;
 }
 
-Error _File::open_compressed(const String &p_path, int p_mode_flags, int p_compress_mode) {
+Error _File::open_compressed(const String &p_path, ModeFlags p_mode_flags, CompressionMode p_compress_mode) {
 
 	FileAccessCompressed *fac = memnew(FileAccessCompressed);
 
@@ -1631,7 +1631,7 @@ Error _File::open_compressed(const String &p_path, int p_mode_flags, int p_compr
 	return OK;
 }
 
-Error _File::open(const String &p_path, int p_mode_flags) {
+Error _File::open(const String &p_path, ModeFlags p_mode_flags) {
 
 	close();
 	Error err;
@@ -1908,18 +1908,18 @@ bool _File::file_exists(const String &p_name) const {
 	return FileAccess::exists(p_name);
 }
 
-void _File::store_var(const Variant &p_var) {
+void _File::store_var(const Variant &p_var, bool p_full_objects) {
 
 	ERR_FAIL_COND(!f);
 	int len;
-	Error err = encode_variant(p_var, NULL, len);
+	Error err = encode_variant(p_var, NULL, len, p_full_objects);
 	ERR_FAIL_COND(err != OK);
 
 	PoolVector<uint8_t> buff;
 	buff.resize(len);
 	PoolVector<uint8_t>::Write w = buff.write();
 
-	err = encode_variant(p_var, &w[0], len);
+	err = encode_variant(p_var, &w[0], len, p_full_objects);
 	ERR_FAIL_COND(err != OK);
 	w = PoolVector<uint8_t>::Write();
 
@@ -1927,7 +1927,7 @@ void _File::store_var(const Variant &p_var) {
 	store_buffer(buff);
 }
 
-Variant _File::get_var() const {
+Variant _File::get_var(bool p_allow_objects) const {
 
 	ERR_FAIL_COND_V(!f, Variant());
 	uint32_t len = get_32();
@@ -1937,7 +1937,7 @@ Variant _File::get_var() const {
 	PoolVector<uint8_t>::Read r = buff.read();
 
 	Variant v;
-	Error err = decode_variant(v, &r[0], len);
+	Error err = decode_variant(v, &r[0], len, NULL, p_allow_objects);
 	ERR_FAIL_COND_V(err != OK, Variant());
 
 	return v;
@@ -1980,7 +1980,7 @@ void _File::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_endian_swap"), &_File::get_endian_swap);
 	ClassDB::bind_method(D_METHOD("set_endian_swap", "enable"), &_File::set_endian_swap);
 	ClassDB::bind_method(D_METHOD("get_error"), &_File::get_error);
-	ClassDB::bind_method(D_METHOD("get_var"), &_File::get_var);
+	ClassDB::bind_method(D_METHOD("get_var", "allow_objects"), &_File::get_var, DEFVAL(false));
 
 	ClassDB::bind_method(D_METHOD("store_8", "value"), &_File::store_8);
 	ClassDB::bind_method(D_METHOD("store_16", "value"), &_File::store_16);
@@ -1993,7 +1993,7 @@ void _File::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("store_line", "line"), &_File::store_line);
 	ClassDB::bind_method(D_METHOD("store_csv_line", "values", "delim"), &_File::store_csv_line, DEFVAL(","));
 	ClassDB::bind_method(D_METHOD("store_string", "string"), &_File::store_string);
-	ClassDB::bind_method(D_METHOD("store_var", "value"), &_File::store_var);
+	ClassDB::bind_method(D_METHOD("store_var", "value", "full_objects"), &_File::store_var, DEFVAL(false));
 
 	ClassDB::bind_method(D_METHOD("store_pascal_string", "string"), &_File::store_pascal_string);
 	ClassDB::bind_method(D_METHOD("get_pascal_string"), &_File::get_pascal_string);
@@ -2223,17 +2223,17 @@ _Marshalls *_Marshalls::get_singleton() {
 	return singleton;
 }
 
-String _Marshalls::variant_to_base64(const Variant &p_var) {
+String _Marshalls::variant_to_base64(const Variant &p_var, bool p_full_objects) {
 
 	int len;
-	Error err = encode_variant(p_var, NULL, len);
+	Error err = encode_variant(p_var, NULL, len, p_full_objects);
 	ERR_FAIL_COND_V(err != OK, "");
 
 	PoolVector<uint8_t> buff;
 	buff.resize(len);
 	PoolVector<uint8_t>::Write w = buff.write();
 
-	err = encode_variant(p_var, &w[0], len);
+	err = encode_variant(p_var, &w[0], len, p_full_objects);
 	ERR_FAIL_COND_V(err != OK, "");
 
 	int b64len = len / 3 * 4 + 4 + 1;
@@ -2249,7 +2249,7 @@ String _Marshalls::variant_to_base64(const Variant &p_var) {
 	return ret;
 };
 
-Variant _Marshalls::base64_to_variant(const String &p_str) {
+Variant _Marshalls::base64_to_variant(const String &p_str, bool p_allow_objects) {
 
 	int strlen = p_str.length();
 	CharString cstr = p_str.ascii();
@@ -2261,7 +2261,7 @@ Variant _Marshalls::base64_to_variant(const String &p_str) {
 	int len = base64_decode((char *)(&w[0]), (char *)cstr.get_data(), strlen);
 
 	Variant v;
-	Error err = decode_variant(v, &w[0], len);
+	Error err = decode_variant(v, &w[0], len, NULL, p_allow_objects);
 	ERR_FAIL_COND_V(err != OK, Variant());
 
 	return v;
@@ -2340,8 +2340,8 @@ String _Marshalls::base64_to_utf8(const String &p_str) {
 
 void _Marshalls::_bind_methods() {
 
-	ClassDB::bind_method(D_METHOD("variant_to_base64", "variant"), &_Marshalls::variant_to_base64);
-	ClassDB::bind_method(D_METHOD("base64_to_variant", "base64_str"), &_Marshalls::base64_to_variant);
+	ClassDB::bind_method(D_METHOD("variant_to_base64", "variant", "full_objects"), &_Marshalls::variant_to_base64, DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("base64_to_variant", "base64_str", "allow_objects"), &_Marshalls::base64_to_variant, DEFVAL(false));
 
 	ClassDB::bind_method(D_METHOD("raw_to_base64", "array"), &_Marshalls::raw_to_base64);
 	ClassDB::bind_method(D_METHOD("base64_to_raw", "base64_str"), &_Marshalls::base64_to_raw);
@@ -2445,7 +2445,8 @@ void _Thread::_start_func(void *ud) {
 
 				reason = "Method Not Found";
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		ERR_EXPLAIN("Could not call function '" + t->target_method.operator String() + "'' starting thread ID: " + t->get_id() + " Reason: " + reason);
@@ -2453,12 +2454,12 @@ void _Thread::_start_func(void *ud) {
 	}
 }
 
-Error _Thread::start(Object *p_instance, const StringName &p_method, const Variant &p_userdata, int p_priority) {
+Error _Thread::start(Object *p_instance, const StringName &p_method, const Variant &p_userdata, Priority p_priority) {
 
 	ERR_FAIL_COND_V(active, ERR_ALREADY_IN_USE);
 	ERR_FAIL_COND_V(!p_instance, ERR_INVALID_PARAMETER);
 	ERR_FAIL_COND_V(p_method == StringName(), ERR_INVALID_PARAMETER);
-	ERR_FAIL_INDEX_V(p_priority, 3, ERR_INVALID_PARAMETER);
+	ERR_FAIL_INDEX_V(p_priority, PRIORITY_MAX, ERR_INVALID_PARAMETER);
 
 	ret = Variant();
 	target_method = p_method;
diff --git a/core/bind/core_bind.h b/core/bind/core_bind.h
index 803743bc93..2906de4a4a 100644
--- a/core/bind/core_bind.h
+++ b/core/bind/core_bind.h
@@ -85,7 +85,7 @@ public:
 
 	static _ResourceSaver *get_singleton() { return singleton; }
 
-	Error save(const String &p_path, const RES &p_resource, uint32_t p_flags);
+	Error save(const String &p_path, const RES &p_resource, SaverFlags p_flags);
 	PoolVector<String> get_recognized_extensions(const RES &p_resource);
 
 	_ResourceSaver();
@@ -436,11 +436,11 @@ public:
 		COMPRESSION_GZIP = Compression::MODE_GZIP
 	};
 
-	Error open_encrypted(const String &p_path, int p_mode_flags, const Vector<uint8_t> &p_key);
-	Error open_encrypted_pass(const String &p_path, int p_mode_flags, const String &p_pass);
-	Error open_compressed(const String &p_path, int p_mode_flags, int p_compress_mode = 0);
+	Error open_encrypted(const String &p_path, ModeFlags p_mode_flags, const Vector<uint8_t> &p_key);
+	Error open_encrypted_pass(const String &p_path, ModeFlags p_mode_flags, const String &p_pass);
+	Error open_compressed(const String &p_path, ModeFlags p_mode_flags, CompressionMode p_compress_mode = COMPRESSION_FASTLZ);
 
-	Error open(const String &p_path, int p_mode_flags); ///< open a file
+	Error open(const String &p_path, ModeFlags p_mode_flags); ///< open a file
 	void close(); ///< close a file
 	bool is_open() const; ///< true when file is open
 
@@ -463,7 +463,7 @@ public:
 	double get_double() const;
 	real_t get_real() const;
 
-	Variant get_var() const;
+	Variant get_var(bool p_allow_objects = false) const;
 
 	PoolVector<uint8_t> get_buffer(int p_length) const; ///< get an array of bytes
 	String get_line() const;
@@ -500,7 +500,7 @@ public:
 
 	void store_buffer(const PoolVector<uint8_t> &p_buffer); ///< store an array of bytes
 
-	void store_var(const Variant &p_var);
+	void store_var(const Variant &p_var, bool p_full_objects = false);
 
 	bool file_exists(const String &p_name) const; ///< return true if a file exists
 
@@ -569,8 +569,8 @@ protected:
 public:
 	static _Marshalls *get_singleton();
 
-	String variant_to_base64(const Variant &p_var);
-	Variant base64_to_variant(const String &p_str);
+	String variant_to_base64(const Variant &p_var, bool p_full_objects = false);
+	Variant base64_to_variant(const String &p_str, bool p_allow_objects = false);
 
 	String raw_to_base64(const PoolVector<uint8_t> &p_arr);
 	PoolVector<uint8_t> base64_to_raw(const String &p_str);
@@ -632,10 +632,11 @@ public:
 
 		PRIORITY_LOW,
 		PRIORITY_NORMAL,
-		PRIORITY_HIGH
+		PRIORITY_HIGH,
+		PRIORITY_MAX
 	};
 
-	Error start(Object *p_instance, const StringName &p_method, const Variant &p_userdata = Variant(), int p_priority = PRIORITY_NORMAL);
+	Error start(Object *p_instance, const StringName &p_method, const Variant &p_userdata = Variant(), Priority p_priority = PRIORITY_NORMAL);
 	String get_id() const;
 	bool is_active() const;
 	Variant wait_to_finish();
diff --git a/core/class_db.cpp b/core/class_db.cpp
index 219bdbddd8..0c844657a4 100644
--- a/core/class_db.cpp
+++ b/core/class_db.cpp
@@ -249,6 +249,11 @@ void ClassDB::set_current_api(APIType p_api) {
 	current_api = p_api;
 }
 
+ClassDB::APIType ClassDB::get_current_api() {
+
+	return current_api;
+}
+
 HashMap<StringName, ClassDB::ClassInfo> ClassDB::classes;
 HashMap<StringName, StringName> ClassDB::resource_base_extensions;
 HashMap<StringName, StringName> ClassDB::compat_classes;
@@ -307,6 +312,19 @@ void ClassDB::get_inheriters_from_class(const StringName &p_class, List<StringNa
 	}
 }
 
+void ClassDB::get_direct_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes) {
+
+	OBJTYPE_RLOCK;
+
+	const StringName *k = NULL;
+
+	while ((k = classes.next(k))) {
+
+		if (*k != p_class && get_parent_class(*k) == p_class)
+			p_classes->push_back(*k);
+	}
+}
+
 StringName ClassDB::get_parent_class_nocheck(const StringName &p_class) {
 
 	OBJTYPE_RLOCK;
diff --git a/core/class_db.h b/core/class_db.h
index 321682d76b..efa1a46866 100644
--- a/core/class_db.h
+++ b/core/class_db.h
@@ -214,6 +214,7 @@ public:
 
 	static void get_class_list(List<StringName> *p_classes);
 	static void get_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes);
+	static void get_direct_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes);
 	static StringName get_parent_class_nocheck(const StringName &p_class);
 	static StringName get_parent_class(const StringName &p_class);
 	static bool class_exists(const StringName &p_class);
@@ -371,6 +372,7 @@ public:
 	static void init();
 
 	static void set_current_api(APIType p_api);
+	static APIType get_current_api();
 	static void cleanup();
 };
 
diff --git a/core/dictionary.cpp b/core/dictionary.cpp
index bea0997cc9..5e4dfb9a5a 100644
--- a/core/dictionary.cpp
+++ b/core/dictionary.cpp
@@ -270,6 +270,10 @@ void Dictionary::operator=(const Dictionary &p_dictionary) {
 	_ref(p_dictionary);
 }
 
+const void *Dictionary::id() const {
+	return _p->variant_map.id();
+}
+
 Dictionary::Dictionary(const Dictionary &p_from) {
 	_p = NULL;
 	_ref(p_from);
diff --git a/core/dictionary.h b/core/dictionary.h
index eab7354cef..b68d3f5737 100644
--- a/core/dictionary.h
+++ b/core/dictionary.h
@@ -82,6 +82,8 @@ public:
 
 	Dictionary duplicate(bool p_deep = false) const;
 
+	const void *id() const;
+
 	Dictionary(const Dictionary &p_from);
 	Dictionary();
 	~Dictionary();
diff --git a/core/error_macros.h b/core/error_macros.h
index ca5ccd24cf..78e29551d4 100644
--- a/core/error_macros.h
+++ b/core/error_macros.h
@@ -86,7 +86,7 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
 
 #define _FNL __FILE__ ":"
 
-/** An index has failed if m_index<0 or m_index >=m_size, the function exists */
+/** An index has failed if m_index<0 or m_index >=m_size, the function exits */
 
 extern bool _err_error_exists;
 
@@ -140,7 +140,7 @@ extern bool _err_error_exists;
 			_err_error_exists = false;                                                                              \
 	} while (0); // (*)
 
-/** An index has failed if m_index<0 or m_index >=m_size, the function exists.
+/** An index has failed if m_index<0 or m_index >=m_size, the function exits.
 * This function returns an error value, if returning Error, please select the most
 * appropriate error condition from error_macros.h
 */
@@ -154,7 +154,7 @@ extern bool _err_error_exists;
 			_err_error_exists = false;                                                                              \
 	} while (0); // (*)
 
-/** An index has failed if m_index >=m_size, the function exists.
+/** An index has failed if m_index >=m_size, the function exits.
 * This function returns an error value, if returning Error, please select the most
 * appropriate error condition from error_macros.h
 */
diff --git a/core/func_ref.cpp b/core/func_ref.cpp
index 4a965473d9..3d03137d09 100644
--- a/core/func_ref.cpp
+++ b/core/func_ref.cpp
@@ -51,11 +51,23 @@ void FuncRef::set_instance(Object *p_obj) {
 	ERR_FAIL_NULL(p_obj);
 	id = p_obj->get_instance_id();
 }
+
 void FuncRef::set_function(const StringName &p_func) {
 
 	function = p_func;
 }
 
+bool FuncRef::is_valid() const {
+	if (id == 0)
+		return false;
+
+	Object *obj = ObjectDB::get_instance(id);
+	if (!obj)
+		return false;
+
+	return obj->has_method(function);
+}
+
 void FuncRef::_bind_methods() {
 
 	{
@@ -67,6 +79,7 @@ void FuncRef::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_instance", "instance"), &FuncRef::set_instance);
 	ClassDB::bind_method(D_METHOD("set_function", "name"), &FuncRef::set_function);
+	ClassDB::bind_method(D_METHOD("is_valid"), &FuncRef::is_valid);
 }
 
 FuncRef::FuncRef() :
diff --git a/core/func_ref.h b/core/func_ref.h
index 339279fdba..a143b58bf0 100644
--- a/core/func_ref.h
+++ b/core/func_ref.h
@@ -46,6 +46,7 @@ public:
 	Variant call_func(const Variant **p_args, int p_argcount, Variant::CallError &r_error);
 	void set_instance(Object *p_obj);
 	void set_function(const StringName &p_func);
+	bool is_valid() const;
 	FuncRef();
 };
 
diff --git a/core/image.cpp b/core/image.cpp
index f547d7e973..99d5eab864 100644
--- a/core/image.cpp
+++ b/core/image.cpp
@@ -1266,7 +1266,8 @@ void Image::shrink_x2() {
 				case FORMAT_RGBAH: _generate_po2_mipmap<uint16_t, 4, false, Image::average_4_half, Image::renormalize_half>(reinterpret_cast<const uint16_t *>(r.ptr()), reinterpret_cast<uint16_t *>(w.ptr()), width, height); break;
 
 				case FORMAT_RGBE9995: _generate_po2_mipmap<uint32_t, 1, false, Image::average_4_rgbe9995, Image::renormalize_rgbe9995>(reinterpret_cast<const uint32_t *>(r.ptr()), reinterpret_cast<uint32_t *>(w.ptr()), width, height); break;
-				default: {}
+				default: {
+				}
 			}
 		}
 
@@ -1398,7 +1399,8 @@ Error Image::generate_mipmaps(bool p_renormalize) {
 					_generate_po2_mipmap<uint32_t, 1, false, Image::average_4_rgbe9995, Image::renormalize_rgbe9995>(reinterpret_cast<const uint32_t *>(&wp[prev_ofs]), reinterpret_cast<uint32_t *>(&wp[ofs]), prev_w, prev_h);
 
 				break;
-			default: {}
+			default: {
+			}
 		}
 
 		prev_ofs = ofs;
@@ -1612,7 +1614,8 @@ void Image::create(const char **p_xpm) {
 				if (y == (size_height - 1))
 					status = DONE;
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		line++;
@@ -1685,7 +1688,8 @@ bool Image::is_invisible() const {
 		case FORMAT_DXT5: {
 			detected = true;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return !detected;
@@ -1729,7 +1733,8 @@ Image::AlphaMode Image::detect_alpha() const {
 		case FORMAT_DXT5: {
 			detected = true;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (detected)
@@ -1871,7 +1876,7 @@ Image::Image(int p_width, int p_height, bool p_mipmaps, Format p_format, const P
 
 Rect2 Image::get_used_rect() const {
 
-	if (format != FORMAT_LA8 && format != FORMAT_RGBA8)
+	if (format != FORMAT_LA8 && format != FORMAT_RGBA8 && format != FORMAT_RGBAF && format != FORMAT_RGBAH && format != FORMAT_RGBA4444 && format != FORMAT_RGBA5551)
 		return Rect2(Point2(), Size2(width, height));
 
 	int len = data.size();
@@ -1879,17 +1884,13 @@ Rect2 Image::get_used_rect() const {
 	if (len == 0)
 		return Rect2();
 
-	//int data_size = len;
-	PoolVector<uint8_t>::Read r = data.read();
-	const unsigned char *rptr = r.ptr();
-
-	int ps = format == FORMAT_LA8 ? 2 : 4;
+	const_cast<Image *>(this)->lock();
 	int minx = 0xFFFFFF, miny = 0xFFFFFFF;
 	int maxx = -1, maxy = -1;
 	for (int j = 0; j < height; j++) {
 		for (int i = 0; i < width; i++) {
 
-			bool opaque = rptr[(j * width + i) * ps + (ps - 1)] > 2;
+			bool opaque = get_pixel(i, j).a > 0.99;
 			if (!opaque)
 				continue;
 			if (i > maxx)
@@ -1903,6 +1904,8 @@ Rect2 Image::get_used_rect() const {
 		}
 	}
 
+	const_cast<Image *>(this)->unlock();
+
 	if (maxx == -1)
 		return Rect2();
 	else
diff --git a/core/io/compression.cpp b/core/io/compression.cpp
index a113f3b61b..b51e50150e 100644
--- a/core/io/compression.cpp
+++ b/core/io/compression.cpp
@@ -175,7 +175,9 @@ int Compression::decompress(uint8_t *p_dst, int p_dst_max_size, const uint8_t *p
 		} break;
 		case MODE_ZSTD: {
 			ZSTD_DCtx *dctx = ZSTD_createDCtx();
-			if (zstd_long_distance_matching) ZSTD_DCtx_setMaxWindowSize(dctx, (size_t)1 << zstd_window_log_size);
+			if (zstd_long_distance_matching) {
+				ZSTD_DCtx_setParameter(dctx, ZSTD_d_windowLogMax, zstd_window_log_size);
+			}
 			int ret = ZSTD_decompressDCtx(dctx, p_dst, p_dst_max_size, p_src, p_src_size);
 			ZSTD_freeDCtx(dctx);
 			return ret;
@@ -189,4 +191,4 @@ int Compression::zlib_level = Z_DEFAULT_COMPRESSION;
 int Compression::gzip_level = Z_DEFAULT_COMPRESSION;
 int Compression::zstd_level = 3;
 bool Compression::zstd_long_distance_matching = false;
-int Compression::zstd_window_log_size = 27;
+int Compression::zstd_window_log_size = 27; // ZSTD_WINDOWLOG_LIMIT_DEFAULT
diff --git a/core/io/file_access_buffered_fa.h b/core/io/file_access_buffered_fa.h
index be960fbc25..24b40cbce8 100644
--- a/core/io/file_access_buffered_fa.h
+++ b/core/io/file_access_buffered_fa.h
@@ -143,6 +143,14 @@ public:
 		return f._get_modified_time(p_file);
 	}
 
+	virtual uint32_t _get_unix_permissions(const String &p_file) {
+		return f._get_unix_permissions(p_file);
+	}
+
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+		return f._set_unix_permissions(p_file, p_permissions);
+	}
+
 	FileAccessBufferedFA(){
 
 	};
diff --git a/core/io/file_access_compressed.cpp b/core/io/file_access_compressed.cpp
index b268d5c710..6c4310a572 100644
--- a/core/io/file_access_compressed.cpp
+++ b/core/io/file_access_compressed.cpp
@@ -373,6 +373,19 @@ uint64_t FileAccessCompressed::_get_modified_time(const String &p_file) {
 		return 0;
 }
 
+uint32_t FileAccessCompressed::_get_unix_permissions(const String &p_file) {
+	if (f)
+		return f->_get_unix_permissions(p_file);
+	return 0;
+}
+
+Error FileAccessCompressed::_set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+	if (f) {
+		return f->_set_unix_permissions(p_file, p_permissions);
+	}
+	return FAILED;
+}
+
 FileAccessCompressed::FileAccessCompressed() :
 		cmode(Compression::MODE_ZSTD),
 		writing(false),
diff --git a/core/io/file_access_compressed.h b/core/io/file_access_compressed.h
index f408b1bc29..773fed6a3a 100644
--- a/core/io/file_access_compressed.h
+++ b/core/io/file_access_compressed.h
@@ -91,6 +91,8 @@ public:
 	virtual bool file_exists(const String &p_name); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file);
+	virtual uint32_t _get_unix_permissions(const String &p_file);
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
 
 	FileAccessCompressed();
 	virtual ~FileAccessCompressed();
diff --git a/core/io/file_access_encrypted.cpp b/core/io/file_access_encrypted.cpp
index 6ad68dd74d..3cf6908961 100644
--- a/core/io/file_access_encrypted.cpp
+++ b/core/io/file_access_encrypted.cpp
@@ -301,6 +301,16 @@ uint64_t FileAccessEncrypted::_get_modified_time(const String &p_file) {
 	return 0;
 }
 
+uint32_t FileAccessEncrypted::_get_unix_permissions(const String &p_file) {
+
+	return 0;
+}
+
+Error FileAccessEncrypted::_set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+
+	return FAILED;
+}
+
 FileAccessEncrypted::FileAccessEncrypted() {
 
 	file = NULL;
diff --git a/core/io/file_access_encrypted.h b/core/io/file_access_encrypted.h
index e77d62a9f4..d779a150ac 100644
--- a/core/io/file_access_encrypted.h
+++ b/core/io/file_access_encrypted.h
@@ -79,6 +79,8 @@ public:
 	virtual bool file_exists(const String &p_name); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file);
+	virtual uint32_t _get_unix_permissions(const String &p_file);
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
 
 	FileAccessEncrypted();
 	~FileAccessEncrypted();
diff --git a/core/io/file_access_memory.h b/core/io/file_access_memory.h
index 73952133c1..4db7811aaa 100644
--- a/core/io/file_access_memory.h
+++ b/core/io/file_access_memory.h
@@ -70,6 +70,8 @@ public:
 	virtual bool file_exists(const String &p_name); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file) { return 0; }
+	virtual uint32_t _get_unix_permissions(const String &p_file) { return 0; }
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) { return FAILED; }
 
 	FileAccessMemory();
 };
diff --git a/core/io/file_access_network.cpp b/core/io/file_access_network.cpp
index 501a21a50d..722e62c54e 100644
--- a/core/io/file_access_network.cpp
+++ b/core/io/file_access_network.cpp
@@ -497,6 +497,16 @@ uint64_t FileAccessNetwork::_get_modified_time(const String &p_file) {
 	return exists_modtime;
 }
 
+uint32_t FileAccessNetwork::_get_unix_permissions(const String &p_file) {
+	//could be implemented, not sure if worth it
+	return 0;
+}
+
+Error FileAccessNetwork::_set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+
+	return FAILED;
+}
+
 void FileAccessNetwork::configure() {
 
 	GLOBAL_DEF("network/remote_fs/page_size", 65536);
diff --git a/core/io/file_access_network.h b/core/io/file_access_network.h
index 5bbf7588c7..073b75a37b 100644
--- a/core/io/file_access_network.h
+++ b/core/io/file_access_network.h
@@ -159,6 +159,8 @@ public:
 	virtual bool file_exists(const String &p_path); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file);
+	virtual uint32_t _get_unix_permissions(const String &p_file);
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
 
 	static void configure();
 
diff --git a/core/io/file_access_pack.cpp b/core/io/file_access_pack.cpp
index c97b8cafac..d38d09c6bb 100644
--- a/core/io/file_access_pack.cpp
+++ b/core/io/file_access_pack.cpp
@@ -272,7 +272,7 @@ int FileAccessPack::get_buffer(uint8_t *p_dst, int p_length) const {
 	if (eof)
 		return 0;
 
-	int64_t to_read = p_length;
+	uint64_t to_read = p_length;
 	if (to_read + pos > pf.size) {
 		eof = true;
 		to_read = int64_t(pf.size) - int64_t(pos);
diff --git a/core/io/file_access_pack.h b/core/io/file_access_pack.h
index a90672ce26..a21dd7d22d 100644
--- a/core/io/file_access_pack.h
+++ b/core/io/file_access_pack.h
@@ -142,6 +142,8 @@ class FileAccessPack : public FileAccess {
 	FileAccess *f;
 	virtual Error _open(const String &p_path, int p_mode_flags);
 	virtual uint64_t _get_modified_time(const String &p_file) { return 0; }
+	virtual uint32_t _get_unix_permissions(const String &p_file) { return 0; }
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) { return FAILED; }
 
 public:
 	virtual void close();
diff --git a/core/io/file_access_zip.h b/core/io/file_access_zip.h
index fc8f85c07b..217176c0af 100644
--- a/core/io/file_access_zip.h
+++ b/core/io/file_access_zip.h
@@ -112,6 +112,8 @@ public:
 	virtual bool file_exists(const String &p_name); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file) { return 0; } // todo
+	virtual uint32_t _get_unix_permissions(const String &p_file) { return 0; }
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) { return FAILED; }
 
 	FileAccessZip(const String &p_path, const PackedData::PackedFile &p_file);
 	~FileAccessZip();
diff --git a/core/io/marshalls.cpp b/core/io/marshalls.cpp
index 5087a63b68..81b3829ffc 100644
--- a/core/io/marshalls.cpp
+++ b/core/io/marshalls.cpp
@@ -768,7 +768,9 @@ Error decode_variant(Variant &r_variant, const uint8_t *p_buffer, int p_len, int
 			r_variant = carray;
 
 		} break;
-		default: { ERR_FAIL_V(ERR_BUG); }
+		default: {
+			ERR_FAIL_V(ERR_BUG);
+		}
 	}
 
 	return OK;
@@ -794,7 +796,7 @@ static void _encode_string(const String &p_string, uint8_t *&buf, int &r_len) {
 	}
 }
 
-Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bool p_object_as_id) {
+Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bool p_full_objects) {
 
 	uint8_t *buf = r_buffer;
 
@@ -819,11 +821,12 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 			}
 		} break;
 		case Variant::OBJECT: {
-			if (p_object_as_id) {
+			if (!p_full_objects) {
 				flags |= ENCODE_FLAG_OBJECT_AS_ID;
 			}
 		} break;
-		default: {} // nothing to do at this stage
+		default: {
+		} // nothing to do at this stage
 	}
 
 	if (buf) {
@@ -1086,22 +1089,8 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 		} break;
 		case Variant::OBJECT: {
 
-			if (p_object_as_id) {
-
-				if (buf) {
+			if (p_full_objects) {
 
-					Object *obj = p_variant;
-					ObjectID id = 0;
-					if (obj && ObjectDB::instance_validate(obj)) {
-						id = obj->get_instance_id();
-					}
-
-					encode_uint64(id, buf);
-				}
-
-				r_len += 8;
-
-			} else {
 				Object *obj = p_variant;
 				if (!obj) {
 					if (buf) {
@@ -1139,7 +1128,7 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 						_encode_string(E->get().name, buf, r_len);
 
 						int len;
-						Error err = encode_variant(obj->get(E->get().name), buf, len, p_object_as_id);
+						Error err = encode_variant(obj->get(E->get().name), buf, len, p_full_objects);
 						if (err)
 							return err;
 						ERR_FAIL_COND_V(len % 4, ERR_BUG);
@@ -1148,6 +1137,19 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 							buf += len;
 					}
 				}
+			} else {
+				if (buf) {
+
+					Object *obj = p_variant;
+					ObjectID id = 0;
+					if (obj && ObjectDB::instance_validate(obj)) {
+						id = obj->get_instance_id();
+					}
+
+					encode_uint64(id, buf);
+				}
+
+				r_len += 8;
 			}
 
 		} break;
@@ -1180,14 +1182,14 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 					r_len++; //pad
 				*/
 				int len;
-				encode_variant(E->get(), buf, len, p_object_as_id);
+				encode_variant(E->get(), buf, len, p_full_objects);
 				ERR_FAIL_COND_V(len % 4, ERR_BUG);
 				r_len += len;
 				if (buf)
 					buf += len;
 				Variant *v = d.getptr(E->get());
 				ERR_FAIL_COND_V(!v, ERR_BUG);
-				encode_variant(*v, buf, len, p_object_as_id);
+				encode_variant(*v, buf, len, p_full_objects);
 				ERR_FAIL_COND_V(len % 4, ERR_BUG);
 				r_len += len;
 				if (buf)
@@ -1209,7 +1211,7 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 			for (int i = 0; i < v.size(); i++) {
 
 				int len;
-				encode_variant(v.get(i), buf, len, p_object_as_id);
+				encode_variant(v.get(i), buf, len, p_full_objects);
 				ERR_FAIL_COND_V(len % 4, ERR_BUG);
 				r_len += len;
 				if (buf)
@@ -1386,7 +1388,9 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 			r_len += 4 * 4 * len;
 
 		} break;
-		default: { ERR_FAIL_V(ERR_BUG); }
+		default: {
+			ERR_FAIL_V(ERR_BUG);
+		}
 	}
 
 	return OK;
diff --git a/core/io/marshalls.h b/core/io/marshalls.h
index 11c4b2c98e..f361c29754 100644
--- a/core/io/marshalls.h
+++ b/core/io/marshalls.h
@@ -199,7 +199,7 @@ public:
 	EncodedObjectAsID();
 };
 
-Error decode_variant(Variant &r_variant, const uint8_t *p_buffer, int p_len, int *r_len = NULL, bool p_allow_objects = true);
-Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bool p_object_as_id = false);
+Error decode_variant(Variant &r_variant, const uint8_t *p_buffer, int p_len, int *r_len = NULL, bool p_allow_objects = false);
+Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bool p_full_objects = false);
 
 #endif
diff --git a/core/io/multiplayer_api.cpp b/core/io/multiplayer_api.cpp
index 7680d47620..2779837190 100644
--- a/core/io/multiplayer_api.cpp
+++ b/core/io/multiplayer_api.cpp
@@ -46,7 +46,8 @@ _FORCE_INLINE_ bool _should_call_local(MultiplayerAPI::RPCMode mode, bool is_mas
 		case MultiplayerAPI::RPC_MODE_MASTERSYNC: {
 			if (is_master)
 				r_skip_rpc = true; // I am the master, so skip remote call.
-		} // Do not break, fall over to other sync.
+			FALLTHROUGH;
+		}
 		case MultiplayerAPI::RPC_MODE_REMOTESYNC:
 		case MultiplayerAPI::RPC_MODE_PUPPETSYNC: {
 			// Call it, sync always results in a local call.
@@ -282,8 +283,9 @@ void MultiplayerAPI::_process_rpc(Node *p_node, const StringName &p_name, int p_
 		rpc_mode = p_node->get_script_instance()->get_rpc_mode(p_name);
 	}
 
-	ERR_EXPLAIN("RPC '" + String(p_name) + "' is not allowed from: " + itos(p_from) + ". Mode is " + itos((int)rpc_mode) + ", master is " + itos(p_node->get_network_master()) + ".");
-	ERR_FAIL_COND(!_can_call_mode(p_node, rpc_mode, p_from));
+	bool can_call = _can_call_mode(p_node, rpc_mode, p_from);
+	ERR_EXPLAIN("RPC '" + String(p_name) + "' is not allowed on node " + p_node->get_path() + " from: " + itos(p_from) + ". Mode is " + itos((int)rpc_mode) + ", master is " + itos(p_node->get_network_master()) + ".");
+	ERR_FAIL_COND(!can_call);
 
 	int argc = p_packet[p_offset];
 	Vector<Variant> args;
@@ -299,7 +301,7 @@ void MultiplayerAPI::_process_rpc(Node *p_node, const StringName &p_name, int p_
 		ERR_FAIL_COND(p_offset >= p_packet_len);
 
 		int vlen;
-		Error err = decode_variant(args.write[i], &p_packet[p_offset], p_packet_len - p_offset, &vlen);
+		Error err = decode_variant(args.write[i], &p_packet[p_offset], p_packet_len - p_offset, &vlen, allow_object_decoding || network_peer->is_object_decoding_allowed());
 		ERR_EXPLAIN("Invalid packet received. Unable to decode RPC argument.");
 		ERR_FAIL_COND(err != OK);
 
@@ -331,11 +333,12 @@ void MultiplayerAPI::_process_rset(Node *p_node, const StringName &p_name, int p
 		rset_mode = p_node->get_script_instance()->get_rset_mode(p_name);
 	}
 
-	ERR_EXPLAIN("RSET '" + String(p_name) + "' is not allowed from: " + itos(p_from) + ". Mode is " + itos((int)rset_mode) + ", master is " + itos(p_node->get_network_master()) + ".");
-	ERR_FAIL_COND(!_can_call_mode(p_node, rset_mode, p_from));
+	bool can_call = _can_call_mode(p_node, rset_mode, p_from);
+	ERR_EXPLAIN("RSET '" + String(p_name) + "' is not allowed on node " + p_node->get_path() + " from: " + itos(p_from) + ". Mode is " + itos((int)rset_mode) + ", master is " + itos(p_node->get_network_master()) + ".");
+	ERR_FAIL_COND(!can_call);
 
 	Variant value;
-	Error err = decode_variant(value, &p_packet[p_offset], p_packet_len - p_offset);
+	Error err = decode_variant(value, &p_packet[p_offset], p_packet_len - p_offset, NULL, allow_object_decoding || network_peer->is_object_decoding_allowed());
 
 	ERR_EXPLAIN("Invalid packet received. Unable to decode RSET value.");
 	ERR_FAIL_COND(err != OK);
@@ -526,11 +529,11 @@ void MultiplayerAPI::_send_rpc(Node *p_from, int p_to, bool p_unreliable, bool p
 
 	if (p_set) {
 		// Set argument.
-		Error err = encode_variant(*p_arg[0], NULL, len);
+		Error err = encode_variant(*p_arg[0], NULL, len, allow_object_decoding || network_peer->is_object_decoding_allowed());
 		ERR_EXPLAIN("Unable to encode RSET value. THIS IS LIKELY A BUG IN THE ENGINE!");
 		ERR_FAIL_COND(err != OK);
 		MAKE_ROOM(ofs + len);
-		encode_variant(*p_arg[0], &(packet_cache.write[ofs]), len);
+		encode_variant(*p_arg[0], &(packet_cache.write[ofs]), len, allow_object_decoding || network_peer->is_object_decoding_allowed());
 		ofs += len;
 
 	} else {
@@ -539,11 +542,11 @@ void MultiplayerAPI::_send_rpc(Node *p_from, int p_to, bool p_unreliable, bool p
 		packet_cache.write[ofs] = p_argcount;
 		ofs += 1;
 		for (int i = 0; i < p_argcount; i++) {
-			Error err = encode_variant(*p_arg[i], NULL, len);
+			Error err = encode_variant(*p_arg[i], NULL, len, allow_object_decoding || network_peer->is_object_decoding_allowed());
 			ERR_EXPLAIN("Unable to encode RPC argument. THIS IS LIKELY A BUG IN THE ENGINE!");
 			ERR_FAIL_COND(err != OK);
 			MAKE_ROOM(ofs + len);
-			encode_variant(*p_arg[i], &(packet_cache.write[ofs]), len);
+			encode_variant(*p_arg[i], &(packet_cache.write[ofs]), len, allow_object_decoding || network_peer->is_object_decoding_allowed());
 			ofs += len;
 		}
 	}
@@ -631,7 +634,7 @@ void MultiplayerAPI::rpcp(Node *p_node, int p_peer_id, bool p_unreliable, const
 	ERR_FAIL_COND(network_peer->get_connection_status() != NetworkedMultiplayerPeer::CONNECTION_CONNECTED);
 
 	int node_id = network_peer->get_unique_id();
-	bool skip_rpc = false;
+	bool skip_rpc = node_id == p_peer_id;
 	bool call_local_native = false;
 	bool call_local_script = false;
 	bool is_master = p_node->is_network_master();
@@ -658,8 +661,11 @@ void MultiplayerAPI::rpcp(Node *p_node, int p_peer_id, bool p_unreliable, const
 	}
 
 	if (call_local_native) {
+		int temp_id = rpc_sender_id;
+		rpc_sender_id = get_network_unique_id();
 		Variant::CallError ce;
 		p_node->call(p_method, p_arg, p_argcount, ce);
+		rpc_sender_id = temp_id;
 		if (ce.error != Variant::CallError::CALL_OK) {
 			String error = Variant::get_call_error_text(p_node, p_method, p_arg, p_argcount, ce);
 			error = "rpc() aborted in local call:  - " + error;
@@ -669,9 +675,12 @@ void MultiplayerAPI::rpcp(Node *p_node, int p_peer_id, bool p_unreliable, const
 	}
 
 	if (call_local_script) {
+		int temp_id = rpc_sender_id;
+		rpc_sender_id = get_network_unique_id();
 		Variant::CallError ce;
 		ce.error = Variant::CallError::CALL_OK;
 		p_node->get_script_instance()->call(p_method, p_arg, p_argcount, ce);
+		rpc_sender_id = temp_id;
 		if (ce.error != Variant::CallError::CALL_OK) {
 			String error = Variant::get_call_error_text(p_node, p_method, p_arg, p_argcount, ce);
 			error = "rpc() aborted in script local call:  - " + error;
@@ -679,6 +688,9 @@ void MultiplayerAPI::rpcp(Node *p_node, int p_peer_id, bool p_unreliable, const
 			return;
 		}
 	}
+
+	ERR_EXPLAIN("RPC '" + p_method + "' on yourself is not allowed by selected mode");
+	ERR_FAIL_COND(skip_rpc && !(call_local_native || call_local_script));
 }
 
 void MultiplayerAPI::rsetp(Node *p_node, int p_peer_id, bool p_unreliable, const StringName &p_property, const Variant &p_value) {
@@ -692,13 +704,11 @@ void MultiplayerAPI::rsetp(Node *p_node, int p_peer_id, bool p_unreliable, const
 
 	int node_id = network_peer->get_unique_id();
 	bool is_master = p_node->is_network_master();
-	bool skip_rset = false;
+	bool skip_rset = node_id == p_peer_id;
+	bool set_local = false;
 
 	if (p_peer_id == 0 || p_peer_id == node_id || (p_peer_id < 0 && p_peer_id != -node_id)) {
 		// Check that send mode can use local call.
-
-		bool set_local = false;
-
 		const Map<StringName, RPCMode>::Element *E = p_node->get_node_rset_mode(p_property);
 		if (E) {
 
@@ -707,7 +717,11 @@ void MultiplayerAPI::rsetp(Node *p_node, int p_peer_id, bool p_unreliable, const
 
 		if (set_local) {
 			bool valid;
+			int temp_id = rpc_sender_id;
+
+			rpc_sender_id = get_network_unique_id();
 			p_node->set(p_property, p_value, &valid);
+			rpc_sender_id = temp_id;
 
 			if (!valid) {
 				String error = "rset() aborted in local set, property not found:  - " + String(p_property);
@@ -721,8 +735,11 @@ void MultiplayerAPI::rsetp(Node *p_node, int p_peer_id, bool p_unreliable, const
 			set_local = _should_call_local(rpc_mode, is_master, skip_rset);
 
 			if (set_local) {
+				int temp_id = rpc_sender_id;
 
+				rpc_sender_id = get_network_unique_id();
 				bool valid = p_node->get_script_instance()->set(p_property, p_value);
+				rpc_sender_id = temp_id;
 
 				if (!valid) {
 					String error = "rset() aborted in local script set, property not found:  - " + String(p_property);
@@ -733,8 +750,11 @@ void MultiplayerAPI::rsetp(Node *p_node, int p_peer_id, bool p_unreliable, const
 		}
 	}
 
-	if (skip_rset)
+	if (skip_rset) {
+		ERR_EXPLAIN("RSET for '" + p_property + "' on yourself is not allowed by selected mode");
+		ERR_FAIL_COND(!set_local);
 		return;
+	}
 
 	const Variant *vptr = &p_value;
 
@@ -818,6 +838,16 @@ Vector<int> MultiplayerAPI::get_network_connected_peers() const {
 	return ret;
 }
 
+void MultiplayerAPI::set_allow_object_decoding(bool p_enable) {
+
+	allow_object_decoding = p_enable;
+}
+
+bool MultiplayerAPI::is_object_decoding_allowed() const {
+
+	return allow_object_decoding;
+}
+
 void MultiplayerAPI::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_root_node", "node"), &MultiplayerAPI::set_root_node);
 	ClassDB::bind_method(D_METHOD("send_bytes", "bytes", "id", "mode"), &MultiplayerAPI::send_bytes, DEFVAL(NetworkedMultiplayerPeer::TARGET_PEER_BROADCAST), DEFVAL(NetworkedMultiplayerPeer::TRANSFER_MODE_RELIABLE));
@@ -838,6 +868,10 @@ void MultiplayerAPI::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_network_connected_peers"), &MultiplayerAPI::get_network_connected_peers);
 	ClassDB::bind_method(D_METHOD("set_refuse_new_network_connections", "refuse"), &MultiplayerAPI::set_refuse_new_network_connections);
 	ClassDB::bind_method(D_METHOD("is_refusing_new_network_connections"), &MultiplayerAPI::is_refusing_new_network_connections);
+	ClassDB::bind_method(D_METHOD("set_allow_object_decoding", "enable"), &MultiplayerAPI::set_allow_object_decoding);
+	ClassDB::bind_method(D_METHOD("is_object_decoding_allowed"), &MultiplayerAPI::is_object_decoding_allowed);
+
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "allow_object_decoding"), "set_allow_object_decoding", "is_object_decoding_allowed");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "refuse_new_network_connections"), "set_refuse_new_network_connections", "is_refusing_new_network_connections");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "network_peer", PROPERTY_HINT_RESOURCE_TYPE, "NetworkedMultiplayerPeer", 0), "set_network_peer", "get_network_peer");
 
@@ -859,7 +893,8 @@ void MultiplayerAPI::_bind_methods() {
 	BIND_ENUM_CONSTANT(RPC_MODE_PUPPETSYNC);
 }
 
-MultiplayerAPI::MultiplayerAPI() {
+MultiplayerAPI::MultiplayerAPI() :
+		allow_object_decoding(false) {
 	rpc_sender_id = 0;
 	root_node = NULL;
 	clear();
diff --git a/core/io/multiplayer_api.h b/core/io/multiplayer_api.h
index a9cf77aaba..779dd043bd 100644
--- a/core/io/multiplayer_api.h
+++ b/core/io/multiplayer_api.h
@@ -63,6 +63,7 @@ private:
 	int last_send_cache_id;
 	Vector<uint8_t> packet_cache;
 	Node *root_node;
+	bool allow_object_decoding;
 
 protected:
 	static void _bind_methods();
@@ -126,6 +127,9 @@ public:
 	void set_refuse_new_network_connections(bool p_refuse);
 	bool is_refusing_new_network_connections() const;
 
+	void set_allow_object_decoding(bool p_enable);
+	bool is_object_decoding_allowed() const;
+
 	MultiplayerAPI();
 	~MultiplayerAPI();
 };
diff --git a/core/io/packet_peer.cpp b/core/io/packet_peer.cpp
index d7bfdbbb37..c77c81f9e2 100644
--- a/core/io/packet_peer.cpp
+++ b/core/io/packet_peer.cpp
@@ -79,7 +79,7 @@ Error PacketPeer::put_packet_buffer(const PoolVector<uint8_t> &p_buffer) {
 	return put_packet(&r[0], len);
 }
 
-Error PacketPeer::get_var(Variant &r_variant) {
+Error PacketPeer::get_var(Variant &r_variant, bool p_allow_objects) {
 
 	const uint8_t *buffer;
 	int buffer_size;
@@ -87,13 +87,13 @@ Error PacketPeer::get_var(Variant &r_variant) {
 	if (err)
 		return err;
 
-	return decode_variant(r_variant, buffer, buffer_size, NULL, allow_object_decoding);
+	return decode_variant(r_variant, buffer, buffer_size, NULL, p_allow_objects || allow_object_decoding);
 }
 
-Error PacketPeer::put_var(const Variant &p_packet) {
+Error PacketPeer::put_var(const Variant &p_packet, bool p_full_objects) {
 
 	int len;
-	Error err = encode_variant(p_packet, NULL, len, !allow_object_decoding); // compute len first
+	Error err = encode_variant(p_packet, NULL, len, p_full_objects || allow_object_decoding); // compute len first
 	if (err)
 		return err;
 
@@ -102,15 +102,15 @@ Error PacketPeer::put_var(const Variant &p_packet) {
 
 	uint8_t *buf = (uint8_t *)alloca(len);
 	ERR_FAIL_COND_V(!buf, ERR_OUT_OF_MEMORY);
-	err = encode_variant(p_packet, buf, len, !allow_object_decoding);
+	err = encode_variant(p_packet, buf, len, p_full_objects || allow_object_decoding);
 	ERR_FAIL_COND_V(err, err);
 
 	return put_packet(buf, len);
 }
 
-Variant PacketPeer::_bnd_get_var() {
+Variant PacketPeer::_bnd_get_var(bool p_allow_objects) {
 	Variant var;
-	get_var(var);
+	get_var(var, p_allow_objects);
 
 	return var;
 };
@@ -132,8 +132,8 @@ Error PacketPeer::_get_packet_error() const {
 
 void PacketPeer::_bind_methods() {
 
-	ClassDB::bind_method(D_METHOD("get_var"), &PacketPeer::_bnd_get_var);
-	ClassDB::bind_method(D_METHOD("put_var", "var"), &PacketPeer::put_var);
+	ClassDB::bind_method(D_METHOD("get_var", "allow_objects"), &PacketPeer::_bnd_get_var, DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("put_var", "var", "full_objects"), &PacketPeer::put_var, DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("get_packet"), &PacketPeer::_get_packet);
 	ClassDB::bind_method(D_METHOD("put_packet", "buffer"), &PacketPeer::_put_packet);
 	ClassDB::bind_method(D_METHOD("get_packet_error"), &PacketPeer::_get_packet_error);
diff --git a/core/io/packet_peer.h b/core/io/packet_peer.h
index 48c50eb76b..6475e4fed9 100644
--- a/core/io/packet_peer.h
+++ b/core/io/packet_peer.h
@@ -39,8 +39,7 @@ class PacketPeer : public Reference {
 
 	GDCLASS(PacketPeer, Reference);
 
-	Variant _bnd_get_var();
-	void _bnd_put_var(const Variant &p_var);
+	Variant _bnd_get_var(bool p_allow_objects = false);
 
 	static void _bind_methods();
 
@@ -64,8 +63,8 @@ public:
 	virtual Error get_packet_buffer(PoolVector<uint8_t> &r_buffer);
 	virtual Error put_packet_buffer(const PoolVector<uint8_t> &p_buffer);
 
-	virtual Error get_var(Variant &r_variant);
-	virtual Error put_var(const Variant &p_packet);
+	virtual Error get_var(Variant &r_variant, bool p_allow_objects = false);
+	virtual Error put_var(const Variant &p_packet, bool p_full_objects = false);
 
 	void set_allow_object_decoding(bool p_enable);
 	bool is_object_decoding_allowed() const;
diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index 42070cd132..f25abc4aab 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -1725,7 +1725,8 @@ void ResourceFormatSaverBinaryInstance::_find_resources(const Variant &p_variant
 				get_string_index(np.get_subname(i));
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
diff --git a/core/io/resource_importer.cpp b/core/io/resource_importer.cpp
index b5fa412576..038a34ed51 100644
--- a/core/io/resource_importer.cpp
+++ b/core/io/resource_importer.cpp
@@ -94,6 +94,8 @@ Error ResourceFormatImporter::_get_path_and_type(const String &p_path, PathAndTy
 				r_path_and_type.type = value;
 			} else if (assign == "importer") {
 				r_path_and_type.importer = value;
+			} else if (assign == "group_file") {
+				r_path_and_type.group_file = value;
 			} else if (assign == "metadata") {
 				r_path_and_type.metadata = value;
 			} else if (assign == "valid") {
@@ -294,6 +296,15 @@ void ResourceFormatImporter::get_internal_resource_path_list(const String &p_pat
 	memdelete(f);
 }
 
+String ResourceFormatImporter::get_import_group_file(const String &p_path) const {
+
+	bool valid = true;
+	PathAndType pat;
+	_get_path_and_type(p_path, pat, &valid);
+	return valid?pat.group_file:String();
+
+}
+
 bool ResourceFormatImporter::is_import_valid(const String &p_path) const {
 
 	bool valid = true;
diff --git a/core/io/resource_importer.h b/core/io/resource_importer.h
index 1c146c33d7..bdbdde6df6 100644
--- a/core/io/resource_importer.h
+++ b/core/io/resource_importer.h
@@ -43,6 +43,7 @@ class ResourceFormatImporter : public ResourceFormatLoader {
 		String path;
 		String type;
 		String importer;
+		String group_file;
 		Variant metadata;
 	};
 
@@ -69,6 +70,7 @@ public:
 	virtual bool is_import_valid(const String &p_path) const;
 	virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
 	virtual bool is_imported(const String &p_path) const { return recognize_path(p_path); }
+	virtual String get_import_group_file(const String &p_path) const;
 	virtual bool exists(const String &p_path) const;
 
 	virtual bool can_be_imported(const String &p_path) const;
@@ -120,8 +122,11 @@ public:
 
 	virtual void get_import_options(List<ImportOption> *r_options, int p_preset = 0) const = 0;
 	virtual bool get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const = 0;
+	virtual String get_option_group_file() const { return String(); }
 
 	virtual Error import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = NULL, Variant *r_metadata = NULL) = 0;
+
+	virtual Error import_group_file(const String& p_group_file,const Map<String,Map<StringName, Variant> >&p_source_file_options, const Map<String,String>& p_base_paths) { return ERR_UNAVAILABLE; }
 	virtual bool are_import_settings_valid(const String &p_path) const { return true; }
 	virtual String get_import_settings_string() const { return String(); }
 };
diff --git a/core/io/resource_loader.cpp b/core/io/resource_loader.cpp
index e4b694b64f..56d3b8b133 100644
--- a/core/io/resource_loader.cpp
+++ b/core/io/resource_loader.cpp
@@ -608,6 +608,30 @@ int ResourceLoader::get_import_order(const String &p_path) {
 	return 0;
 }
 
+String ResourceLoader::get_import_group_file(const String &p_path) {
+	String path = _path_remap(p_path);
+
+	String local_path;
+	if (path.is_rel_path())
+		local_path = "res://" + path;
+	else
+		local_path = ProjectSettings::get_singleton()->localize_path(path);
+
+	for (int i = 0; i < loader_count; i++) {
+
+		if (!loader[i]->recognize_path(local_path))
+			continue;
+		/*
+		if (p_type_hint!="" && !loader[i]->handles_type(p_type_hint))
+			continue;
+		*/
+
+		return loader[i]->get_import_group_file(p_path);
+	}
+
+	return String(); //not found
+}
+
 bool ResourceLoader::is_import_valid(const String &p_path) {
 
 	String path = _path_remap(p_path);
diff --git a/core/io/resource_loader.h b/core/io/resource_loader.h
index ca7610a0d2..9e7020be7c 100644
--- a/core/io/resource_loader.h
+++ b/core/io/resource_loader.h
@@ -81,6 +81,7 @@ public:
 	virtual bool is_import_valid(const String &p_path) const { return true; }
 	virtual bool is_imported(const String &p_path) const { return false; }
 	virtual int get_import_order(const String &p_path) const { return 0; }
+	virtual String get_import_group_file(const String &p_path) const { return ""; } //no group
 
 	virtual ~ResourceFormatLoader() {}
 };
@@ -155,6 +156,7 @@ public:
 	static void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
 	static Error rename_dependencies(const String &p_path, const Map<String, String> &p_map);
 	static bool is_import_valid(const String &p_path);
+	static String get_import_group_file(const String &p_path);
 	static bool is_imported(const String &p_path);
 	static int get_import_order(const String &p_path);
 
diff --git a/core/io/stream_peer.cpp b/core/io/stream_peer.cpp
index 3042c0f60a..6ad24a5f3a 100644
--- a/core/io/stream_peer.cpp
+++ b/core/io/stream_peer.cpp
@@ -221,14 +221,14 @@ void StreamPeer::put_utf8_string(const String &p_string) {
 	put_u32(cs.length());
 	put_data((const uint8_t *)cs.get_data(), cs.length());
 }
-void StreamPeer::put_var(const Variant &p_variant) {
+void StreamPeer::put_var(const Variant &p_variant, bool p_full_objects) {
 
 	int len = 0;
 	Vector<uint8_t> buf;
-	encode_variant(p_variant, NULL, len);
+	encode_variant(p_variant, NULL, len, p_full_objects);
 	buf.resize(len);
 	put_32(len);
-	encode_variant(p_variant, buf.ptrw(), len);
+	encode_variant(p_variant, buf.ptrw(), len, p_full_objects);
 	put_data(buf.ptr(), buf.size());
 }
 
@@ -359,7 +359,7 @@ String StreamPeer::get_utf8_string(int p_bytes) {
 	ret.parse_utf8((const char *)buf.ptr(), buf.size());
 	return ret;
 }
-Variant StreamPeer::get_var() {
+Variant StreamPeer::get_var(bool p_allow_objects) {
 
 	int len = get_32();
 	Vector<uint8_t> var;
@@ -369,7 +369,7 @@ Variant StreamPeer::get_var() {
 	ERR_FAIL_COND_V(err != OK, Variant());
 
 	Variant ret;
-	decode_variant(ret, var.ptr(), len);
+	decode_variant(ret, var.ptr(), len, NULL, p_allow_objects);
 	return ret;
 }
 
@@ -398,7 +398,7 @@ void StreamPeer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("put_double", "value"), &StreamPeer::put_double);
 	ClassDB::bind_method(D_METHOD("put_string", "value"), &StreamPeer::put_string);
 	ClassDB::bind_method(D_METHOD("put_utf8_string", "value"), &StreamPeer::put_utf8_string);
-	ClassDB::bind_method(D_METHOD("put_var", "value"), &StreamPeer::put_var);
+	ClassDB::bind_method(D_METHOD("put_var", "value", "full_objects"), &StreamPeer::put_var, DEFVAL(false));
 
 	ClassDB::bind_method(D_METHOD("get_8"), &StreamPeer::get_8);
 	ClassDB::bind_method(D_METHOD("get_u8"), &StreamPeer::get_u8);
@@ -412,7 +412,7 @@ void StreamPeer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_double"), &StreamPeer::get_double);
 	ClassDB::bind_method(D_METHOD("get_string", "bytes"), &StreamPeer::get_string, DEFVAL(-1));
 	ClassDB::bind_method(D_METHOD("get_utf8_string", "bytes"), &StreamPeer::get_utf8_string, DEFVAL(-1));
-	ClassDB::bind_method(D_METHOD("get_var"), &StreamPeer::get_var);
+	ClassDB::bind_method(D_METHOD("get_var", "allow_objects"), &StreamPeer::get_var, DEFVAL(false));
 
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "big_endian"), "set_big_endian", "is_big_endian_enabled");
 }
diff --git a/core/io/stream_peer.h b/core/io/stream_peer.h
index 059ccd016c..65e70995ad 100644
--- a/core/io/stream_peer.h
+++ b/core/io/stream_peer.h
@@ -73,7 +73,7 @@ public:
 	void put_double(double p_val);
 	void put_string(const String &p_string);
 	void put_utf8_string(const String &p_string);
-	void put_var(const Variant &p_variant);
+	void put_var(const Variant &p_variant, bool p_full_objects = false);
 
 	uint8_t get_u8();
 	int8_t get_8();
@@ -87,7 +87,7 @@ public:
 	double get_double();
 	String get_string(int p_bytes = -1);
 	String get_utf8_string(int p_bytes = -1);
-	Variant get_var();
+	Variant get_var(bool p_allow_objects = false);
 
 	StreamPeer() { big_endian = false; }
 };
diff --git a/core/list.h b/core/list.h
index c26aad6463..103a82a31d 100644
--- a/core/list.h
+++ b/core/list.h
@@ -503,8 +503,7 @@ public:
 		if (p_I->prev_ptr)
 			p_I->prev_ptr->next_ptr = p_I->next_ptr;
 
-		if (p_I->next_ptr)
-			p_I->next_ptr->prev_ptr = p_I->prev_ptr;
+		p_I->next_ptr->prev_ptr = p_I->prev_ptr;
 
 		_data->last->next_ptr = p_I;
 		p_I->prev_ptr = _data->last;
@@ -538,8 +537,7 @@ public:
 		if (_data->last == p_I)
 			_data->last = p_I->prev_ptr;
 
-		if (p_I->prev_ptr)
-			p_I->prev_ptr->next_ptr = p_I->next_ptr;
+		p_I->prev_ptr->next_ptr = p_I->next_ptr;
 
 		if (p_I->next_ptr)
 			p_I->next_ptr->prev_ptr = p_I->prev_ptr;
@@ -691,6 +689,10 @@ public:
 		memdelete_arr(aux_buffer);
 	}
 
+	const void *id() const {
+		return (void *)_data;
+	}
+
 	/**
 	 * copy constructor for the list
 	 */
diff --git a/core/make_binders.py b/core/make_binders.py
index 4c61b90d99..5c1c66cab6 100644
--- a/core/make_binders.py
+++ b/core/make_binders.py
@@ -9,6 +9,12 @@ public:
 	$ifret R$ $ifnoret void$ (T::*method)($arg, P@$) $ifconst const$;
 #ifdef DEBUG_METHODS_ENABLED
 	virtual Variant::Type _gen_argument_type(int p_arg) const { return _get_argument_type(p_arg); }
+	virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const {
+		$ifret if (p_arg==-1) return GetTypeInfo<R>::METADATA;$
+		$arg if (p_arg==(@-1)) return GetTypeInfo<P@>::METADATA;
+		$
+		return GodotTypeInfo::METADATA_NONE;
+	}
 	Variant::Type _get_argument_type(int p_argument) const {
 		$ifret if (p_argument==-1) return (Variant::Type)GetTypeInfo<R>::VARIANT_TYPE;$
 		$arg if (p_argument==(@-1)) return (Variant::Type)GetTypeInfo<P@>::VARIANT_TYPE;
@@ -94,6 +100,12 @@ public:
 
 #ifdef DEBUG_METHODS_ENABLED
 	virtual Variant::Type _gen_argument_type(int p_arg) const { return _get_argument_type(p_arg); }
+	virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const {
+		$ifret if (p_arg==-1) return GetTypeInfo<R>::METADATA;$
+		$arg if (p_arg==(@-1)) return GetTypeInfo<P@>::METADATA;
+		$
+		return GodotTypeInfo::METADATA_NONE;
+	}
 
 	Variant::Type _get_argument_type(int p_argument) const {
 		$ifret if (p_argument==-1) return (Variant::Type)GetTypeInfo<R>::VARIANT_TYPE;$
diff --git a/core/math/a_star.cpp b/core/math/a_star.cpp
index 6c3b84d49a..e1388ad2ac 100644
--- a/core/math/a_star.cpp
+++ b/core/math/a_star.cpp
@@ -55,6 +55,7 @@ void AStar::add_point(int p_id, const Vector3 &p_pos, real_t p_weight_scale) {
 		pt->weight_scale = p_weight_scale;
 		pt->prev_point = NULL;
 		pt->last_pass = 0;
+		pt->enabled = true;
 		points[p_id] = pt;
 	} else {
 		points[p_id]->pos = p_pos;
@@ -242,6 +243,9 @@ bool AStar::_solve(Point *begin_point, Point *end_point) {
 
 	pass++;
 
+	if (!end_point->enabled)
+		return false;
+
 	SelfList<Point>::List open_list;
 
 	bool found_route = false;
@@ -249,6 +253,10 @@ bool AStar::_solve(Point *begin_point, Point *end_point) {
 	for (Set<Point *>::Element *E = begin_point->neighbours.front(); E; E = E->next()) {
 
 		Point *n = E->get();
+
+		if (!n->enabled)
+			continue;
+
 		n->prev_point = begin_point;
 		n->distance = _compute_cost(begin_point->id, n->id) * n->weight_scale;
 		n->last_pass = pass;
@@ -290,6 +298,9 @@ bool AStar::_solve(Point *begin_point, Point *end_point) {
 
 			Point *e = E->get();
 
+			if (!e->enabled)
+				continue;
+
 			real_t distance = _compute_cost(p->id, e->id) * e->weight_scale + p->distance;
 
 			if (e->last_pass == pass) {
@@ -438,6 +449,14 @@ PoolVector<int> AStar::get_id_path(int p_from_id, int p_to_id) {
 	return path;
 }
 
+void AStar::set_point_disabled(int p_id, bool p_disabled) {
+	points[p_id]->enabled = !p_disabled;
+}
+
+bool AStar::is_point_disabled(int p_id) const {
+	return !points[p_id]->enabled;
+}
+
 void AStar::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_available_point_id"), &AStar::get_available_point_id);
@@ -450,6 +469,9 @@ void AStar::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("has_point", "id"), &AStar::has_point);
 	ClassDB::bind_method(D_METHOD("get_points"), &AStar::get_points);
 
+	ClassDB::bind_method(D_METHOD("set_point_disabled", "id", "disabled"), &AStar::set_point_disabled, DEFVAL(true));
+	ClassDB::bind_method(D_METHOD("is_point_disabled", "id"), &AStar::is_point_disabled);
+
 	ClassDB::bind_method(D_METHOD("get_point_connections", "id"), &AStar::get_point_connections);
 
 	ClassDB::bind_method(D_METHOD("connect_points", "id", "to_id", "bidirectional"), &AStar::connect_points, DEFVAL(true));
diff --git a/core/math/a_star.h b/core/math/a_star.h
index d094bc4863..c63e1aa4dc 100644
--- a/core/math/a_star.h
+++ b/core/math/a_star.h
@@ -54,6 +54,7 @@ class AStar : public Reference {
 		Vector3 pos;
 		real_t weight_scale;
 		uint64_t last_pass;
+		bool enabled;
 
 		Set<Point *> neighbours;
 
@@ -114,6 +115,9 @@ public:
 	PoolVector<int> get_point_connections(int p_id);
 	Array get_points();
 
+	void set_point_disabled(int p_id, bool p_disabled = true);
+	bool is_point_disabled(int p_id) const;
+
 	void connect_points(int p_id, int p_with_id, bool bidirectional = true);
 	void disconnect_points(int p_id, int p_with_id);
 	bool are_points_connected(int p_id, int p_with_id) const;
diff --git a/core/math/audio_frame.h b/core/math/audio_frame.h
index f970c510e0..98e4e33021 100644
--- a/core/math/audio_frame.h
+++ b/core/math/audio_frame.h
@@ -31,6 +31,7 @@
 #ifndef AUDIOFRAME_H
 #define AUDIOFRAME_H
 
+#include "core/math/vector2.h"
 #include "core/typedefs.h"
 
 static inline float undenormalise(volatile float f) {
@@ -122,6 +123,20 @@ struct AudioFrame {
 		r = p_frame.r;
 	}
 
+	_ALWAYS_INLINE_ AudioFrame operator=(const AudioFrame &p_frame) {
+		l = p_frame.l;
+		r = p_frame.r;
+		return *this;
+	}
+
+	_ALWAYS_INLINE_ operator Vector2() const {
+		return Vector2(l, r);
+	}
+
+	_ALWAYS_INLINE_ AudioFrame(const Vector2 &p_v2) {
+		l = p_v2.x;
+		r = p_v2.y;
+	}
 	_ALWAYS_INLINE_ AudioFrame() {}
 };
 
diff --git a/core/math/basis.cpp b/core/math/basis.cpp
index 8816e3639a..9fcecd1ba6 100644
--- a/core/math/basis.cpp
+++ b/core/math/basis.cpp
@@ -557,11 +557,23 @@ void Basis::set_euler_yxz(const Vector3 &p_euler) {
 	*this = ymat * xmat * zmat;
 }
 
-bool Basis::is_equal_approx(const Basis &a, const Basis &b) const {
+bool Basis::is_equal_approx(const Basis &a, const Basis &b, real_t p_epsilon) const {
 
 	for (int i = 0; i < 3; i++) {
 		for (int j = 0; j < 3; j++) {
-			if (!Math::is_equal_approx_ratio(a.elements[i][j], b.elements[i][j], UNIT_EPSILON))
+			if (!Math::is_equal_approx(a.elements[i][j], b.elements[i][j], p_epsilon))
+				return false;
+		}
+	}
+
+	return true;
+}
+
+bool Basis::is_equal_approx_ratio(const Basis &a, const Basis &b, real_t p_epsilon) const {
+
+	for (int i = 0; i < 3; i++) {
+		for (int j = 0; j < 3; j++) {
+			if (!Math::is_equal_approx_ratio(a.elements[i][j], b.elements[i][j], p_epsilon))
 				return false;
 		}
 	}
@@ -605,12 +617,14 @@ Basis::operator String() const {
 
 Quat Basis::get_quat() const {
 
+#ifdef MATH_CHECKS
+	if (!is_rotation()) {
+		ERR_EXPLAIN("Basis must be normalized in order to be casted to a Quaternion. Use get_rotation_quat() or call orthonormalized() instead.");
+		ERR_FAIL_V(Quat());
+	}
+#endif
 	/* Allow getting a quaternion from an unnormalized transform */
 	Basis m = *this;
-	m.elements[0].normalize();
-	m.elements[1].normalize();
-	m.elements[2].normalize();
-
 	real_t trace = m.elements[0][0] + m.elements[1][1] + m.elements[2][2];
 	real_t temp[4];
 
diff --git a/core/math/basis.h b/core/math/basis.h
index 128e56b494..75037c2c52 100644
--- a/core/math/basis.h
+++ b/core/math/basis.h
@@ -133,7 +133,8 @@ public:
 		return elements[0][2] * v[0] + elements[1][2] * v[1] + elements[2][2] * v[2];
 	}
 
-	bool is_equal_approx(const Basis &a, const Basis &b) const;
+	bool is_equal_approx(const Basis &a, const Basis &b, real_t p_epsilon = CMP_EPSILON) const;
+	bool is_equal_approx_ratio(const Basis &a, const Basis &b, real_t p_epsilon = UNIT_EPSILON) const;
 
 	bool operator==(const Basis &p_matrix) const;
 	bool operator!=(const Basis &p_matrix) const;
diff --git a/core/math/camera_matrix.cpp b/core/math/camera_matrix.cpp
index caf08c7379..f615cc8c65 100644
--- a/core/math/camera_matrix.cpp
+++ b/core/math/camera_matrix.cpp
@@ -210,6 +210,14 @@ void CameraMatrix::set_frustum(real_t p_left, real_t p_right, real_t p_bottom, r
 	te[15] = 0;
 }
 
+void CameraMatrix::set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov) {
+	if (!p_flip_fov) {
+		p_size *= p_aspect;
+	}
+
+	set_frustum(-p_size / 2 + p_offset.x, +p_size / 2 + p_offset.x, -p_size / p_aspect / 2 + p_offset.y, +p_size / p_aspect / 2 + p_offset.y, p_near, p_far);
+}
+
 real_t CameraMatrix::get_z_far() const {
 
 	const real_t *matrix = (const real_t *)this->matrix;
diff --git a/core/math/camera_matrix.h b/core/math/camera_matrix.h
index 015588a8cb..3bcf48f5da 100644
--- a/core/math/camera_matrix.h
+++ b/core/math/camera_matrix.h
@@ -61,6 +61,7 @@ struct CameraMatrix {
 	void set_orthogonal(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_znear, real_t p_zfar);
 	void set_orthogonal(real_t p_size, real_t p_aspect, real_t p_znear, real_t p_zfar, bool p_flip_fov = false);
 	void set_frustum(real_t p_left, real_t p_right, real_t p_bottom, real_t p_top, real_t p_near, real_t p_far);
+	void set_frustum(real_t p_size, real_t p_aspect, Vector2 p_offset, real_t p_near, real_t p_far, bool p_flip_fov = false);
 
 	static real_t get_fovy(real_t p_fovx, real_t p_aspect) {
 
diff --git a/core/math/delaunay.h b/core/math/delaunay.h
index bd0cf97937..ed52c506db 100644
--- a/core/math/delaunay.h
+++ b/core/math/delaunay.h
@@ -80,11 +80,11 @@ public:
 	}
 
 	static bool edge_compare(const Vector<Vector2> &p_vertices, const Edge &p_a, const Edge &p_b) {
-		if (p_vertices[p_a.edge[0]].distance_to(p_vertices[p_b.edge[0]]) < CMP_EPSILON && p_vertices[p_a.edge[1]].distance_to(p_vertices[p_b.edge[1]]) < CMP_EPSILON) {
+		if (Math::is_zero_approx(p_vertices[p_a.edge[0]].distance_to(p_vertices[p_b.edge[0]])) && Math::is_zero_approx(p_vertices[p_a.edge[1]].distance_to(p_vertices[p_b.edge[1]]))) {
 			return true;
 		}
 
-		if (p_vertices[p_a.edge[0]].distance_to(p_vertices[p_b.edge[1]]) < CMP_EPSILON && p_vertices[p_a.edge[1]].distance_to(p_vertices[p_b.edge[0]]) < CMP_EPSILON) {
+		if (Math::is_zero_approx(p_vertices[p_a.edge[0]].distance_to(p_vertices[p_b.edge[1]])) && Math::is_zero_approx(p_vertices[p_a.edge[1]].distance_to(p_vertices[p_b.edge[0]]))) {
 			return true;
 		}
 
diff --git a/core/math/expression.cpp b/core/math/expression.cpp
index 99251d80e3..079c9b524f 100644
--- a/core/math/expression.cpp
+++ b/core/math/expression.cpp
@@ -64,10 +64,12 @@ const char *Expression::func_name[Expression::FUNC_MAX] = {
 	"is_inf",
 	"ease",
 	"decimals",
+	"step_decimals",
 	"stepify",
 	"lerp",
 	"inverse_lerp",
 	"range_lerp",
+	"smoothstep",
 	"dectime",
 	"randomize",
 	"randi",
@@ -148,6 +150,7 @@ int Expression::get_func_argument_count(BuiltinFunc p_func) {
 		case MATH_ISNAN:
 		case MATH_ISINF:
 		case MATH_DECIMALS:
+		case MATH_STEP_DECIMALS:
 		case MATH_SEED:
 		case MATH_RANDSEED:
 		case MATH_DEG2RAD:
@@ -164,10 +167,10 @@ int Expression::get_func_argument_count(BuiltinFunc p_func) {
 		case TEXT_PRINTRAW:
 		case VAR_TO_STR:
 		case STR_TO_VAR:
-		case VAR_TO_BYTES:
-		case BYTES_TO_VAR:
 		case TYPE_EXISTS:
 			return 1;
+		case VAR_TO_BYTES:
+		case BYTES_TO_VAR:
 		case MATH_ATAN2:
 		case MATH_FMOD:
 		case MATH_FPOSMOD:
@@ -185,6 +188,7 @@ int Expression::get_func_argument_count(BuiltinFunc p_func) {
 			return 2;
 		case MATH_LERP:
 		case MATH_INVERSE_LERP:
+		case MATH_SMOOTHSTEP:
 		case MATH_DECTIME:
 		case MATH_WRAP:
 		case MATH_WRAPF:
@@ -363,6 +367,11 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			VALIDATE_ARG_NUM(0);
 			*r_return = Math::step_decimals((double)*p_inputs[0]);
 		} break;
+		case MATH_STEP_DECIMALS: {
+
+			VALIDATE_ARG_NUM(0);
+			*r_return = Math::step_decimals((double)*p_inputs[0]);
+		} break;
 		case MATH_STEPIFY: {
 
 			VALIDATE_ARG_NUM(0);
@@ -392,6 +401,12 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			VALIDATE_ARG_NUM(4);
 			*r_return = Math::range_lerp((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2], (double)*p_inputs[3], (double)*p_inputs[4]);
 		} break;
+		case MATH_SMOOTHSTEP: {
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			VALIDATE_ARG_NUM(2);
+			*r_return = Math::smoothstep((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
+		} break;
 		case MATH_DECTIME: {
 
 			VALIDATE_ARG_NUM(0);
@@ -696,8 +711,9 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 		case VAR_TO_BYTES: {
 
 			PoolByteArray barr;
+			bool full_objects = *p_inputs[1];
 			int len;
-			Error err = encode_variant(*p_inputs[0], NULL, len);
+			Error err = encode_variant(*p_inputs[0], NULL, len, full_objects);
 			if (err) {
 				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
 				r_error.argument = 0;
@@ -709,7 +725,7 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			barr.resize(len);
 			{
 				PoolByteArray::Write w = barr.write();
-				encode_variant(*p_inputs[0], w.ptr(), len);
+				encode_variant(*p_inputs[0], w.ptr(), len, full_objects);
 			}
 			*r_return = barr;
 		} break;
@@ -724,10 +740,11 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			}
 
 			PoolByteArray varr = *p_inputs[0];
+			bool allow_objects = *p_inputs[1];
 			Variant ret;
 			{
 				PoolByteArray::Read r = varr.read();
-				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL);
+				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL, allow_objects);
 				if (err != OK) {
 					r_error_str = RTR("Not enough bytes for decoding bytes, or invalid format.");
 					r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
@@ -750,7 +767,8 @@ void Expression::exec_func(BuiltinFunc p_func, const Variant **p_inputs, Variant
 			*r_return = String(color);
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1669,7 +1687,8 @@ Expression::ENode *Expression::_parse_expression() {
 			case TK_OP_BIT_OR: op = Variant::OP_BIT_OR; break;
 			case TK_OP_BIT_XOR: op = Variant::OP_BIT_XOR; break;
 			case TK_OP_BIT_INVERT: op = Variant::OP_BIT_NEGATE; break;
-			default: {};
+			default: {
+			};
 		}
 
 		if (op == Variant::OP_MAX) { //stop appending stuff
diff --git a/core/math/expression.h b/core/math/expression.h
index fa0878c93c..f20619f0b6 100644
--- a/core/math/expression.h
+++ b/core/math/expression.h
@@ -62,10 +62,12 @@ public:
 		MATH_ISINF,
 		MATH_EASE,
 		MATH_DECIMALS,
+		MATH_STEP_DECIMALS,
 		MATH_STEPIFY,
 		MATH_LERP,
 		MATH_INVERSE_LERP,
 		MATH_RANGE_LERP,
+		MATH_SMOOTHSTEP,
 		MATH_DECTIME,
 		MATH_RANDOMIZE,
 		MATH_RAND,
diff --git a/core/math/geometry.cpp b/core/math/geometry.cpp
index a84b5a16c7..0ab8707d3a 100644
--- a/core/math/geometry.cpp
+++ b/core/math/geometry.cpp
@@ -836,7 +836,7 @@ Geometry::MeshData Geometry::build_convex_mesh(const PoolVector<Plane> &p_planes
 					Vector3 rel = edge1_A - edge0_A;
 
 					real_t den = clip.normal.dot(rel);
-					if (Math::abs(den) < CMP_EPSILON)
+					if (Math::is_zero_approx(den))
 						continue; // point too short
 
 					real_t dist = -(clip.normal.dot(edge0_A) - clip.d) / den;
diff --git a/core/math/geometry.h b/core/math/geometry.h
index 4b478b6b16..f3a671aa9a 100644
--- a/core/math/geometry.h
+++ b/core/math/geometry.h
@@ -181,8 +181,8 @@ public:
 			}
 		}
 		// finally do the division to get sc and tc
-		sc = (Math::abs(sN) < CMP_EPSILON ? 0.0 : sN / sD);
-		tc = (Math::abs(tN) < CMP_EPSILON ? 0.0 : tN / tD);
+		sc = (Math::is_zero_approx(sN) ? 0.0 : sN / sD);
+		tc = (Math::is_zero_approx(tN) ? 0.0 : tN / tD);
 
 		// get the difference of the two closest points
 		Vector3 dP = w + (sc * u) - (tc * v); // = S1(sc) - S2(tc)
@@ -195,7 +195,7 @@ public:
 		Vector3 e2 = p_v2 - p_v0;
 		Vector3 h = p_dir.cross(e2);
 		real_t a = e1.dot(h);
-		if (a > -CMP_EPSILON && a < CMP_EPSILON) // parallel test
+		if (Math::is_zero_approx(a)) // parallel test
 			return false;
 
 		real_t f = 1.0 / a;
@@ -233,7 +233,7 @@ public:
 		Vector3 e2 = p_v2 - p_v0;
 		Vector3 h = rel.cross(e2);
 		real_t a = e1.dot(h);
-		if (a > -CMP_EPSILON && a < CMP_EPSILON) // parallel test
+		if (Math::is_zero_approx(a)) // parallel test
 			return false;
 
 		real_t f = 1.0 / a;
@@ -535,7 +535,7 @@ public:
 		// see http://paulbourke.net/geometry/pointlineplane/
 
 		const real_t denom = p_dir_b.y * p_dir_a.x - p_dir_b.x * p_dir_a.y;
-		if (Math::abs(denom) < CMP_EPSILON) { // parallel?
+		if (Math::is_zero_approx(denom)) { // parallel?
 			return false;
 		}
 
@@ -702,9 +702,11 @@ public:
 		/* if we can assume that the line segment starts outside the circle (e.g. for continuous time collision detection) then the following can be skipped and we can just return the equivalent of res1 */
 		sqrtterm = Math::sqrt(sqrtterm);
 		real_t res1 = (-b - sqrtterm) / (2 * a);
-		//real_t res2 = ( -b + sqrtterm ) / (2 * a);
+		real_t res2 = (-b + sqrtterm) / (2 * a);
 
-		return (res1 >= 0 && res1 <= 1) ? res1 : -1;
+		if (res1 >= 0 && res1 <= 1) return res1;
+		if (res2 >= 0 && res2 <= 1) return res2;
+		return -1;
 	}
 
 	static inline Vector<Vector3> clip_polygon(const Vector<Vector3> &polygon, const Plane &p_plane) {
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h
index 17112d8940..a75f2fb4ab 100644
--- a/core/math/math_funcs.h
+++ b/core/math/math_funcs.h
@@ -208,6 +208,17 @@ public:
 	static _ALWAYS_INLINE_ double range_lerp(double p_value, double p_istart, double p_istop, double p_ostart, double p_ostop) { return Math::lerp(p_ostart, p_ostop, Math::inverse_lerp(p_istart, p_istop, p_value)); }
 	static _ALWAYS_INLINE_ float range_lerp(float p_value, float p_istart, float p_istop, float p_ostart, float p_ostop) { return Math::lerp(p_ostart, p_ostop, Math::inverse_lerp(p_istart, p_istop, p_value)); }
 
+	static _ALWAYS_INLINE_ double smoothstep(double p_from, double p_to, double p_weight) {
+		if (is_equal_approx(p_from, p_to)) return p_from;
+		double x = CLAMP((p_weight - p_from) / (p_to - p_from), 0.0, 1.0);
+		return x * x * (3.0 - 2.0 * x);
+	}
+	static _ALWAYS_INLINE_ float smoothstep(float p_from, float p_to, float p_weight) {
+		if (is_equal_approx(p_from, p_to)) return p_from;
+		float x = CLAMP((p_weight - p_from) / (p_to - p_from), 0.0f, 1.0f);
+		return x * x * (3.0f - 2.0f * x);
+	}
+
 	static _ALWAYS_INLINE_ double linear2db(double p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; }
 	static _ALWAYS_INLINE_ float linear2db(float p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; }
 
@@ -249,11 +260,11 @@ public:
 	static float random(float from, float to);
 	static real_t random(int from, int to) { return (real_t)random((real_t)from, (real_t)to); }
 
-	static _ALWAYS_INLINE_ bool is_equal_approx_ratio(real_t a, real_t b, real_t epsilon = CMP_EPSILON) {
+	static _ALWAYS_INLINE_ bool is_equal_approx_ratio(real_t a, real_t b, real_t epsilon = CMP_EPSILON, real_t min_epsilon = CMP_EPSILON) {
 		// this is an approximate way to check that numbers are close, as a ratio of their average size
 		// helps compare approximate numbers that may be very big or very small
 		real_t diff = abs(a - b);
-		if (diff == 0.0) {
+		if (diff == 0.0 || diff < min_epsilon) {
 			return true;
 		}
 		real_t avg_size = (abs(a) + abs(b)) / 2.0;
@@ -261,13 +272,20 @@ public:
 		return diff < epsilon;
 	}
 
-	static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b, real_t epsilon = CMP_EPSILON) {
-		// TODO: Comparing floats for approximate-equality is non-trivial.
-		// Using epsilon should cover the typical cases in Godot (where a == b is used to compare two reals), such as matrix and vector comparison operators.
-		// A proper implementation in terms of ULPs should eventually replace the contents of this function.
-		// See https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/ for details.
+	static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b) {
+		real_t tolerance = CMP_EPSILON * abs(a);
+		if (tolerance < CMP_EPSILON) {
+			tolerance = CMP_EPSILON;
+		}
+		return abs(a - b) < tolerance;
+	}
+
+	static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b, real_t tolerance) {
+		return abs(a - b) < tolerance;
+	}
 
-		return abs(a - b) < epsilon;
+	static _ALWAYS_INLINE_ bool is_zero_approx(real_t s) {
+		return abs(s) < CMP_EPSILON;
 	}
 
 	static _ALWAYS_INLINE_ float absf(float g) {
diff --git a/core/math/plane.cpp b/core/math/plane.cpp
index cd3cbce300..b01853c4ac 100644
--- a/core/math/plane.cpp
+++ b/core/math/plane.cpp
@@ -110,7 +110,7 @@ bool Plane::intersects_ray(const Vector3 &p_from, const Vector3 &p_dir, Vector3
 	real_t den = normal.dot(segment);
 
 	//printf("den is %i\n",den);
-	if (Math::abs(den) <= CMP_EPSILON) {
+	if (Math::is_zero_approx(den)) {
 
 		return false;
 	}
@@ -135,7 +135,7 @@ bool Plane::intersects_segment(const Vector3 &p_begin, const Vector3 &p_end, Vec
 	real_t den = normal.dot(segment);
 
 	//printf("den is %i\n",den);
-	if (Math::abs(den) <= CMP_EPSILON) {
+	if (Math::is_zero_approx(den)) {
 
 		return false;
 	}
diff --git a/core/math/plane.h b/core/math/plane.h
index 1c6e4b816b..ec817edd2c 100644
--- a/core/math/plane.h
+++ b/core/math/plane.h
@@ -125,12 +125,12 @@ Plane::Plane(const Vector3 &p_point1, const Vector3 &p_point2, const Vector3 &p_
 
 bool Plane::operator==(const Plane &p_plane) const {
 
-	return normal == p_plane.normal && d == p_plane.d;
+	return normal == p_plane.normal && Math::is_equal_approx(d, p_plane.d);
 }
 
 bool Plane::operator!=(const Plane &p_plane) const {
 
-	return normal != p_plane.normal || d != p_plane.d;
+	return normal != p_plane.normal || !Math::is_equal_approx(d, p_plane.d);
 }
 
 #endif // PLANE_H
diff --git a/core/math/quat.h b/core/math/quat.h
index 7d71ec03e8..8ed2fa7cc2 100644
--- a/core/math/quat.h
+++ b/core/math/quat.h
@@ -131,6 +131,14 @@ public:
 			w(q.w) {
 	}
 
+	Quat operator=(const Quat &q) {
+		x = q.x;
+		y = q.y;
+		z = q.z;
+		w = q.w;
+		return *this;
+	}
+
 	Quat(const Vector3 &v0, const Vector3 &v1) // shortest arc
 	{
 		Vector3 c = v0.cross(v1);
diff --git a/core/math/random_number_generator.cpp b/core/math/random_number_generator.cpp
index fccc0f72fe..6add00c1d8 100644
--- a/core/math/random_number_generator.cpp
+++ b/core/math/random_number_generator.cpp
@@ -40,6 +40,7 @@ void RandomNumberGenerator::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("randi"), &RandomNumberGenerator::randi);
 	ClassDB::bind_method(D_METHOD("randf"), &RandomNumberGenerator::randf);
+	ClassDB::bind_method(D_METHOD("randfn", "mean", "deviation"), &RandomNumberGenerator::randfn, DEFVAL(0.0), DEFVAL(1.0));
 	ClassDB::bind_method(D_METHOD("randf_range", "from", "to"), &RandomNumberGenerator::randf_range);
 	ClassDB::bind_method(D_METHOD("randi_range", "from", "to"), &RandomNumberGenerator::randi_range);
 	ClassDB::bind_method(D_METHOD("randomize"), &RandomNumberGenerator::randomize);
diff --git a/core/math/random_number_generator.h b/core/math/random_number_generator.h
index 66c77b8ccf..6b6bcdd2cd 100644
--- a/core/math/random_number_generator.h
+++ b/core/math/random_number_generator.h
@@ -55,6 +55,8 @@ public:
 
 	_FORCE_INLINE_ real_t randf_range(real_t from, real_t to) { return randbase.random(from, to); }
 
+	_FORCE_INLINE_ real_t randfn(real_t mean = 0.0, real_t deviation = 1.0) { return randbase.randfn(mean, deviation); }
+
 	_FORCE_INLINE_ int randi_range(int from, int to) {
 		unsigned int ret = randbase.rand();
 		return ret % (to - from + 1) + from;
diff --git a/core/math/random_pcg.cpp b/core/math/random_pcg.cpp
index 45467b32b2..8351bd138e 100644
--- a/core/math/random_pcg.cpp
+++ b/core/math/random_pcg.cpp
@@ -34,8 +34,7 @@
 
 RandomPCG::RandomPCG(uint64_t p_seed, uint64_t p_inc) :
 		pcg(),
-		current_seed(DEFAULT_SEED) {
-	pcg.inc = p_inc;
+		current_inc(p_inc) {
 	seed(p_seed);
 }
 
diff --git a/core/math/random_pcg.h b/core/math/random_pcg.h
index 230eb9a11b..0d1b311c0d 100644
--- a/core/math/random_pcg.h
+++ b/core/math/random_pcg.h
@@ -31,6 +31,8 @@
 #ifndef RANDOM_PCG_H
 #define RANDOM_PCG_H
 
+#include <math.h>
+
 #include "core/math/math_defs.h"
 
 #include "thirdparty/misc/pcg.h"
@@ -38,18 +40,18 @@
 class RandomPCG {
 	pcg32_random_t pcg;
 	uint64_t current_seed; // seed with this to get the same state
+	uint64_t current_inc;
 
 public:
 	static const uint64_t DEFAULT_SEED = 12047754176567800795U;
 	static const uint64_t DEFAULT_INC = PCG_DEFAULT_INC_64;
 	static const uint64_t RANDOM_MAX = 0xFFFFFFFF;
 
-	RandomPCG(uint64_t p_seed = DEFAULT_SEED, uint64_t p_inc = PCG_DEFAULT_INC_64);
+	RandomPCG(uint64_t p_seed = DEFAULT_SEED, uint64_t p_inc = DEFAULT_INC);
 
 	_FORCE_INLINE_ void seed(uint64_t p_seed) {
 		current_seed = p_seed;
-		pcg.state = p_seed;
-		pcg32_random_r(&pcg); // Force changing internal state to avoid initial 0
+		pcg32_srandom_r(&pcg, current_seed, current_inc);
 	}
 	_FORCE_INLINE_ uint64_t get_seed() { return current_seed; }
 
@@ -61,6 +63,13 @@ public:
 	_FORCE_INLINE_ double randd() { return (double)rand() / (double)RANDOM_MAX; }
 	_FORCE_INLINE_ float randf() { return (float)rand() / (float)RANDOM_MAX; }
 
+	_FORCE_INLINE_ double randfn(double p_mean, double p_deviation) {
+		return p_mean + p_deviation * (cos(Math_TAU * randd()) * sqrt(-2.0 * log(randd()))); // Box-Muller transform
+	}
+	_FORCE_INLINE_ float randfn(float p_mean, float p_deviation) {
+		return p_mean + p_deviation * (cos(Math_TAU * randf()) * sqrt(-2.0 * log(randf()))); // Box-Muller transform
+	}
+
 	double random(double p_from, double p_to);
 	float random(float p_from, float p_to);
 	real_t random(int p_from, int p_to) { return (real_t)random((real_t)p_from, (real_t)p_to); }
diff --git a/core/math/rect2.h b/core/math/rect2.h
index 901d372132..d636aa223f 100644
--- a/core/math/rect2.h
+++ b/core/math/rect2.h
@@ -67,7 +67,7 @@ struct Rect2 {
 
 		if (p_point.x < position.x) {
 			real_t d = position.x - p_point.x;
-			dist = inside ? d : MIN(dist, d);
+			dist = d;
 			inside = false;
 		}
 		if (p_point.y < position.y) {
@@ -103,7 +103,7 @@ struct Rect2 {
 			   ((p_rect.position.y + p_rect.size.y) < (position.y + size.y));
 	}
 
-	inline bool has_no_area() const {
+	_FORCE_INLINE_ bool has_no_area() const {
 
 		return (size.x <= 0 || size.y <= 0);
 	}
@@ -154,8 +154,6 @@ struct Rect2 {
 		return true;
 	}
 
-	inline bool no_area() const { return (size.width <= 0 || size.height <= 0); }
-
 	bool operator==(const Rect2 &p_rect) const { return position == p_rect.position && size == p_rect.size; }
 	bool operator!=(const Rect2 &p_rect) const { return position != p_rect.position || size != p_rect.size; }
 
@@ -189,7 +187,7 @@ struct Rect2 {
 		return g;
 	}
 
-	inline Rect2 expand(const Vector2 &p_vector) const {
+	_FORCE_INLINE_ Rect2 expand(const Vector2 &p_vector) const {
 
 		Rect2 r = *this;
 		r.expand_to(p_vector);
@@ -215,7 +213,7 @@ struct Rect2 {
 		size = end - begin;
 	}
 
-	inline Rect2 abs() const {
+	_FORCE_INLINE_ Rect2 abs() const {
 
 		return Rect2(Point2(position.x + MIN(size.x, 0), position.y + MIN(size.y, 0)), size.abs());
 	}
@@ -265,7 +263,7 @@ struct Rect2i {
 			   ((p_rect.position.y + p_rect.size.y) < (position.y + size.y));
 	}
 
-	inline bool has_no_area() const {
+	_FORCE_INLINE_ bool has_no_area() const {
 
 		return (size.x <= 0 || size.y <= 0);
 	}
@@ -316,8 +314,6 @@ struct Rect2i {
 		return true;
 	}
 
-	bool no_area() { return (size.width <= 0 || size.height <= 0); }
-
 	bool operator==(const Rect2i &p_rect) const { return position == p_rect.position && size == p_rect.size; }
 	bool operator!=(const Rect2i &p_rect) const { return position != p_rect.position || size != p_rect.size; }
 
@@ -331,6 +327,33 @@ struct Rect2i {
 		return g;
 	}
 
+	inline Rect2i grow_margin(Margin p_margin, int p_amount) const {
+		Rect2i g = *this;
+		g = g.grow_individual((MARGIN_LEFT == p_margin) ? p_amount : 0,
+				(MARGIN_TOP == p_margin) ? p_amount : 0,
+				(MARGIN_RIGHT == p_margin) ? p_amount : 0,
+				(MARGIN_BOTTOM == p_margin) ? p_amount : 0);
+		return g;
+	}
+
+	inline Rect2i grow_individual(int p_left, int p_top, int p_right, int p_bottom) const {
+
+		Rect2i g = *this;
+		g.position.x -= p_left;
+		g.position.y -= p_top;
+		g.size.width += p_left + p_right;
+		g.size.height += p_top + p_bottom;
+
+		return g;
+	}
+
+	_FORCE_INLINE_ Rect2i expand(const Vector2i &p_vector) const {
+
+		Rect2i r = *this;
+		r.expand_to(p_vector);
+		return r;
+	}
+
 	inline void expand_to(const Point2i &p_vector) {
 
 		Point2i begin = position;
diff --git a/core/math/transform_2d.cpp b/core/math/transform_2d.cpp
index 7d00158f3d..1d0387bd45 100644
--- a/core/math/transform_2d.cpp
+++ b/core/math/transform_2d.cpp
@@ -106,7 +106,7 @@ Size2 Transform2D::get_scale() const {
 	return Size2(elements[0].length(), det_sign * elements[1].length());
 }
 
-void Transform2D::set_scale(Size2 &p_scale) {
+void Transform2D::set_scale(const Size2 &p_scale) {
 	elements[0].normalize();
 	elements[1].normalize();
 	elements[0] *= p_scale.x;
diff --git a/core/math/transform_2d.h b/core/math/transform_2d.h
index b9e7a36fb3..c44678674a 100644
--- a/core/math/transform_2d.h
+++ b/core/math/transform_2d.h
@@ -81,7 +81,7 @@ struct Transform2D {
 	real_t basis_determinant() const;
 
 	Size2 get_scale() const;
-	void set_scale(Size2 &p_scale);
+	void set_scale(const Size2 &p_scale);
 
 	_FORCE_INLINE_ const Vector2 &get_origin() const { return elements[2]; }
 	_FORCE_INLINE_ void set_origin(const Vector2 &p_origin) { elements[2] = p_origin; }
diff --git a/core/math/vector2.h b/core/math/vector2.h
index a20326f667..a0c6024c9f 100644
--- a/core/math/vector2.h
+++ b/core/math/vector2.h
@@ -65,6 +65,7 @@ struct Vector2 {
 	real_t distance_squared_to(const Vector2 &p_vector2) const;
 	real_t angle_to(const Vector2 &p_vector2) const;
 	real_t angle_to_point(const Vector2 &p_vector2) const;
+	_FORCE_INLINE_ Vector2 direction_to(const Vector2 &p_b) const;
 
 	real_t dot(const Vector2 &p_other) const;
 	real_t cross(const Vector2 &p_other) const;
@@ -98,14 +99,15 @@ struct Vector2 {
 	Vector2 operator/(const real_t &rvalue) const;
 
 	void operator/=(const real_t &rvalue);
+	void operator/=(const Vector2 &rvalue) { *this = *this / rvalue; }
 
 	Vector2 operator-() const;
 
 	bool operator==(const Vector2 &p_vec2) const;
 	bool operator!=(const Vector2 &p_vec2) const;
 
-	bool operator<(const Vector2 &p_vec2) const { return (x == p_vec2.x) ? (y < p_vec2.y) : (x < p_vec2.x); }
-	bool operator<=(const Vector2 &p_vec2) const { return (x == p_vec2.x) ? (y <= p_vec2.y) : (x <= p_vec2.x); }
+	bool operator<(const Vector2 &p_vec2) const { return (Math::is_equal_approx(x, p_vec2.x)) ? (y < p_vec2.y) : (x < p_vec2.x); }
+	bool operator<=(const Vector2 &p_vec2) const { return (Math::is_equal_approx(x, p_vec2.x)) ? (y <= p_vec2.y) : (x < p_vec2.x); }
 
 	real_t angle() const;
 
@@ -211,11 +213,11 @@ _FORCE_INLINE_ Vector2 Vector2::operator-() const {
 
 _FORCE_INLINE_ bool Vector2::operator==(const Vector2 &p_vec2) const {
 
-	return x == p_vec2.x && y == p_vec2.y;
+	return Math::is_equal_approx(x, p_vec2.x) && Math::is_equal_approx(y, p_vec2.y);
 }
 _FORCE_INLINE_ bool Vector2::operator!=(const Vector2 &p_vec2) const {
 
-	return x != p_vec2.x || y != p_vec2.y;
+	return !Math::is_equal_approx(x, p_vec2.x) || !Math::is_equal_approx(y, p_vec2.y);
 }
 
 Vector2 Vector2::linear_interpolate(const Vector2 &p_b, real_t p_t) const {
@@ -236,6 +238,12 @@ Vector2 Vector2::slerp(const Vector2 &p_b, real_t p_t) const {
 	return rotated(theta * p_t);
 }
 
+Vector2 Vector2::direction_to(const Vector2 &p_b) const {
+	Vector2 ret(p_b.x - x, p_b.y - y);
+	ret.normalize();
+	return ret;
+}
+
 Vector2 Vector2::linear_interpolate(const Vector2 &p_a, const Vector2 &p_b, real_t p_t) {
 
 	Vector2 res = p_a;
diff --git a/core/math/vector3.h b/core/math/vector3.h
index b11838d16e..21fc09653f 100644
--- a/core/math/vector3.h
+++ b/core/math/vector3.h
@@ -112,6 +112,7 @@ struct Vector3 {
 	_FORCE_INLINE_ Vector3 project(const Vector3 &p_b) const;
 
 	_FORCE_INLINE_ real_t angle_to(const Vector3 &p_b) const;
+	_FORCE_INLINE_ Vector3 direction_to(const Vector3 &p_b) const;
 
 	_FORCE_INLINE_ Vector3 slide(const Vector3 &p_normal) const;
 	_FORCE_INLINE_ Vector3 bounce(const Vector3 &p_normal) const;
@@ -244,6 +245,12 @@ real_t Vector3::angle_to(const Vector3 &p_b) const {
 	return Math::atan2(cross(p_b).length(), dot(p_b));
 }
 
+Vector3 Vector3::direction_to(const Vector3 &p_b) const {
+	Vector3 ret(p_b.x - x, p_b.y - y, p_b.z - z);
+	ret.normalize();
+	return ret;
+}
+
 /* Operators */
 
 Vector3 &Vector3::operator+=(const Vector3 &p_v) {
@@ -334,17 +341,17 @@ Vector3 Vector3::operator-() const {
 
 bool Vector3::operator==(const Vector3 &p_v) const {
 
-	return (x == p_v.x && y == p_v.y && z == p_v.z);
+	return (Math::is_equal_approx(x, p_v.x) && Math::is_equal_approx(y, p_v.y) && Math::is_equal_approx(z, p_v.z));
 }
 
 bool Vector3::operator!=(const Vector3 &p_v) const {
-	return (x != p_v.x || y != p_v.y || z != p_v.z);
+	return (!Math::is_equal_approx(x, p_v.x) || !Math::is_equal_approx(y, p_v.y) || !Math::is_equal_approx(z, p_v.z));
 }
 
 bool Vector3::operator<(const Vector3 &p_v) const {
 
-	if (x == p_v.x) {
-		if (y == p_v.y)
+	if (Math::is_equal_approx(x, p_v.x)) {
+		if (Math::is_equal_approx(y, p_v.y))
 			return z < p_v.z;
 		else
 			return y < p_v.y;
@@ -355,8 +362,8 @@ bool Vector3::operator<(const Vector3 &p_v) const {
 
 bool Vector3::operator<=(const Vector3 &p_v) const {
 
-	if (x == p_v.x) {
-		if (y == p_v.y)
+	if (Math::is_equal_approx(x, p_v.x)) {
+		if (Math::is_equal_approx(y, p_v.y))
 			return z <= p_v.z;
 		else
 			return y < p_v.y;
@@ -395,13 +402,14 @@ real_t Vector3::length_squared() const {
 
 void Vector3::normalize() {
 
-	real_t l = length();
-	if (l == 0) {
+	real_t lengthsq = length_squared();
+	if (lengthsq == 0) {
 		x = y = z = 0;
 	} else {
-		x /= l;
-		y /= l;
-		z /= l;
+		real_t length = Math::sqrt(lengthsq);
+		x /= length;
+		y /= length;
+		z /= length;
 	}
 }
 
diff --git a/core/message_queue.cpp b/core/message_queue.cpp
index c57bd4081c..1d661f25f9 100644
--- a/core/message_queue.cpp
+++ b/core/message_queue.cpp
@@ -58,7 +58,7 @@ Error MessageQueue::push_call(ObjectID p_id, const StringName &p_method, const V
 
 	Message *msg = memnew_placement(&buffer[buffer_end], Message);
 	msg->args = p_argcount;
-	msg->instance_ID = p_id;
+	msg->instance_id = p_id;
 	msg->target = p_method;
 	msg->type = TYPE_CALL;
 	if (p_show_error)
@@ -109,7 +109,7 @@ Error MessageQueue::push_set(ObjectID p_id, const StringName &p_prop, const Vari
 
 	Message *msg = memnew_placement(&buffer[buffer_end], Message);
 	msg->args = 1;
-	msg->instance_ID = p_id;
+	msg->instance_id = p_id;
 	msg->target = p_prop;
 	msg->type = TYPE_SET;
 
@@ -143,7 +143,7 @@ Error MessageQueue::push_notification(ObjectID p_id, int p_notification) {
 	Message *msg = memnew_placement(&buffer[buffer_end], Message);
 
 	msg->type = TYPE_NOTIFICATION;
-	msg->instance_ID = p_id;
+	msg->instance_id = p_id;
 	//msg->target;
 	msg->notification = p_notification;
 
@@ -177,7 +177,7 @@ void MessageQueue::statistics() {
 	while (read_pos < buffer_end) {
 		Message *message = (Message *)&buffer[read_pos];
 
-		Object *target = ObjectDB::get_instance(message->instance_ID);
+		Object *target = ObjectDB::get_instance(message->instance_id);
 
 		if (target != NULL) {
 
@@ -289,7 +289,7 @@ void MessageQueue::flush() {
 
 		_THREAD_SAFE_UNLOCK_
 
-		Object *target = ObjectDB::get_instance(message->instance_ID);
+		Object *target = ObjectDB::get_instance(message->instance_id);
 
 		if (target != NULL) {
 
diff --git a/core/message_queue.h b/core/message_queue.h
index 2515eb4a98..026d17ad3f 100644
--- a/core/message_queue.h
+++ b/core/message_queue.h
@@ -54,7 +54,7 @@ class MessageQueue {
 
 	struct Message {
 
-		ObjectID instance_ID;
+		ObjectID instance_id;
 		StringName target;
 		int16_t type;
 		union {
diff --git a/core/method_bind.h b/core/method_bind.h
index 5ea8adb7e0..1b0c3b27c0 100644
--- a/core/method_bind.h
+++ b/core/method_bind.h
@@ -273,6 +273,8 @@ public:
 	void set_argument_names(const Vector<StringName> &p_names); //set by class, db, can't be inferred otherwise
 	Vector<StringName> get_argument_names() const;
 
+	virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const = 0;
+
 #endif
 	void set_hint_flags(uint32_t p_hint) { hint_flags = p_hint; }
 	uint32_t get_hint_flags() const { return hint_flags | (is_const() ? METHOD_FLAG_CONST : 0) | (is_vararg() ? METHOD_FLAG_VARARG : 0); }
@@ -329,6 +331,10 @@ public:
 		return _gen_argument_type_info(p_arg).type;
 	}
 
+	virtual GodotTypeInfo::Metadata get_argument_meta(int) const {
+		return GodotTypeInfo::METADATA_NONE;
+	}
+
 #else
 
 	virtual Variant::Type _gen_argument_type(int p_arg) const {
diff --git a/core/object.cpp b/core/object.cpp
index 8b693f039c..937aa3c745 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -1059,6 +1059,10 @@ Variant Object::get_meta(const String &p_name) const {
 	return metadata[p_name];
 }
 
+void Object::remove_meta(const String &p_name) {
+	metadata.erase(p_name);
+}
+
 Array Object::_get_property_list_bind() const {
 
 	List<PropertyInfo> lpi;
@@ -1366,7 +1370,10 @@ Array Object::_get_incoming_connections() const {
 void Object::get_signal_list(List<MethodInfo> *p_signals) const {
 
 	if (!script.is_null()) {
-		Ref<Script>(script)->get_script_signal_list(p_signals);
+		Ref<Script> scr = script;
+		if (scr.is_valid()) {
+			scr->get_script_signal_list(p_signals);
+		}
 	}
 
 	ClassDB::get_signal_list(get_class_name(), p_signals);
@@ -1637,7 +1644,8 @@ void Object::_clear_internal_resource_paths(const Variant &p_var) {
 				_clear_internal_resource_paths(d[E->get()]);
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1687,6 +1695,7 @@ void Object::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_script"), &Object::get_script);
 
 	ClassDB::bind_method(D_METHOD("set_meta", "name", "value"), &Object::set_meta);
+	ClassDB::bind_method(D_METHOD("remove_meta", "name"), &Object::remove_meta);
 	ClassDB::bind_method(D_METHOD("get_meta", "name"), &Object::get_meta);
 	ClassDB::bind_method(D_METHOD("has_meta", "name"), &Object::has_meta);
 	ClassDB::bind_method(D_METHOD("get_meta_list"), &Object::_get_meta_list_bind);
@@ -1938,8 +1947,8 @@ Object::Object() {
 	_class_ptr = NULL;
 	_block_signals = false;
 	_predelete_ok = 0;
-	_instance_ID = 0;
-	_instance_ID = ObjectDB::add_instance(this);
+	_instance_id = 0;
+	_instance_id = ObjectDB::add_instance(this);
 	_can_translate = true;
 	_is_queued_for_deletion = false;
 	instance_binding_count = 0;
@@ -1993,7 +2002,7 @@ Object::~Object() {
 	}
 
 	ObjectDB::remove_instance(this);
-	_instance_ID = 0;
+	_instance_id = 0;
 	_predelete_ok = 2;
 
 	if (!ScriptServer::are_languages_finished()) {
@@ -2041,10 +2050,10 @@ void ObjectDB::remove_instance(Object *p_object) {
 
 	rw_lock->write_unlock();
 }
-Object *ObjectDB::get_instance(ObjectID p_instance_ID) {
+Object *ObjectDB::get_instance(ObjectID p_instance_id) {
 
 	rw_lock->read_lock();
-	Object **obj = instances.getptr(p_instance_ID);
+	Object **obj = instances.getptr(p_instance_id);
 	rw_lock->read_unlock();
 
 	if (!obj)
diff --git a/core/object.h b/core/object.h
index e8a6178052..57ebb32392 100644
--- a/core/object.h
+++ b/core/object.h
@@ -88,6 +88,7 @@ enum PropertyHint {
 	PROPERTY_HINT_PROPERTY_OF_SCRIPT, ///< a property of a script & base
 	PROPERTY_HINT_OBJECT_TOO_BIG, ///< object is too big to send
 	PROPERTY_HINT_NODE_PATH_VALID_TYPES,
+	PROPERTY_HINT_SAVE_FILE, ///< a file path must be passed, hint_text (optionally) is a filter "*.png,*.wav,*.doc,". This opens a save dialog
 	PROPERTY_HINT_MAX,
 	// When updating PropertyHint, also sync the hardcoded list in VisualScriptEditorVariableEdit
 };
@@ -464,7 +465,7 @@ private:
 	bool _block_signals;
 	int _predelete_ok;
 	Set<Object *> change_receptors;
-	ObjectID _instance_ID;
+	ObjectID _instance_id;
 	bool _predelete();
 	void _postinitialize();
 	bool _can_translate;
@@ -576,7 +577,7 @@ public:
 
 	bool _is_gpl_reversed() const { return false; }
 
-	_FORCE_INLINE_ ObjectID get_instance_id() const { return _instance_ID; }
+	_FORCE_INLINE_ ObjectID get_instance_id() const { return _instance_id; }
 	// this is used for editors
 
 	void add_change_receptor(Object *p_receptor);
@@ -672,6 +673,7 @@ public:
 
 	bool has_meta(const String &p_name) const;
 	void set_meta(const String &p_name, const Variant &p_value);
+	void remove_meta(const String &p_name);
 	Variant get_meta(const String &p_name) const;
 	void get_meta_list(List<String> *p_list) const;
 
@@ -774,7 +776,7 @@ class ObjectDB {
 public:
 	typedef void (*DebugFunc)(Object *p_obj);
 
-	static Object *get_instance(ObjectID p_instance_ID);
+	static Object *get_instance(ObjectID p_instance_id);
 	static void debug_objects(DebugFunc p_func);
 	static int get_object_count();
 
diff --git a/core/ordered_hash_map.h b/core/ordered_hash_map.h
index 09d43d6797..2c18de92be 100644
--- a/core/ordered_hash_map.h
+++ b/core/ordered_hash_map.h
@@ -274,6 +274,10 @@ public:
 	inline bool empty() const { return list.empty(); }
 	inline int size() const { return list.size(); }
 
+	const void *id() const {
+		return list.id();
+	}
+
 	void clear() {
 		map.clear();
 		list.clear();
diff --git a/core/os/dir_access.cpp b/core/os/dir_access.cpp
index 2c1c655175..d81c30f33a 100644
--- a/core/os/dir_access.cpp
+++ b/core/os/dir_access.cpp
@@ -330,7 +330,7 @@ Error DirAccess::copy(String p_from, String p_to, int p_chmod_flags) {
 
 	if (err == OK && p_chmod_flags != -1) {
 		fdst->close();
-		err = fdst->_chmod(p_to, p_chmod_flags);
+		err = FileAccess::set_unix_permissions(p_to, p_chmod_flags);
 		// If running on a platform with no chmod support (i.e., Windows), don't fail
 		if (err == ERR_UNAVAILABLE)
 			err = OK;
diff --git a/core/os/file_access.cpp b/core/os/file_access.cpp
index 39d9f45bd7..079f51bada 100644
--- a/core/os/file_access.cpp
+++ b/core/os/file_access.cpp
@@ -507,6 +507,29 @@ uint64_t FileAccess::get_modified_time(const String &p_file) {
 	return mt;
 }
 
+uint32_t FileAccess::get_unix_permissions(const String &p_file) {
+
+	if (PackedData::get_singleton() && !PackedData::get_singleton()->is_disabled() && PackedData::get_singleton()->has_path(p_file))
+		return 0;
+
+	FileAccess *fa = create_for_path(p_file);
+	ERR_FAIL_COND_V(!fa, 0);
+
+	uint32_t mt = fa->_get_unix_permissions(p_file);
+	memdelete(fa);
+	return mt;
+}
+
+Error FileAccess::set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+
+	FileAccess *fa = create_for_path(p_file);
+	ERR_FAIL_COND_V(!fa, ERR_CANT_CREATE);
+
+	Error err = fa->_set_unix_permissions(p_file, p_permissions);
+	memdelete(fa);
+	return err;
+}
+
 void FileAccess::store_string(const String &p_string) {
 
 	if (p_string.length() == 0)
@@ -571,10 +594,16 @@ void FileAccess::store_buffer(const uint8_t *p_src, int p_length) {
 		store_8(p_src[i]);
 }
 
-Vector<uint8_t> FileAccess::get_file_as_array(const String &p_path) {
+Vector<uint8_t> FileAccess::get_file_as_array(const String &p_path, Error *r_error) {
 
-	FileAccess *f = FileAccess::open(p_path, READ);
-	ERR_FAIL_COND_V(!f, Vector<uint8_t>());
+	FileAccess *f = FileAccess::open(p_path, READ, r_error);
+	if (!f) {
+		if (r_error) { // if error requested, do not throw error
+			return Vector<uint8_t>();
+		} else {
+			ERR_FAIL_COND_V(!f, Vector<uint8_t>());
+		}
+	}
 	Vector<uint8_t> data;
 	data.resize(f->get_len());
 	f->get_buffer(data.ptrw(), data.size());
@@ -582,6 +611,26 @@ Vector<uint8_t> FileAccess::get_file_as_array(const String &p_path) {
 	return data;
 }
 
+String FileAccess::get_file_as_string(const String &p_path, Error *r_error) {
+
+	Error err;
+	Vector<uint8_t> array = get_file_as_array(p_path, &err);
+	if (r_error) {
+		*r_error = err;
+	}
+	if (err != OK) {
+		if (r_error) {
+			return String();
+		} else {
+			ERR_FAIL_COND_V(err != OK, String());
+		}
+	}
+
+	String ret;
+	ret.parse_utf8((const char *)array.ptr(), array.size());
+	return ret;
+}
+
 String FileAccess::get_md5(const String &p_file) {
 
 	FileAccess *f = FileAccess::open(p_file, READ);
diff --git a/core/os/file_access.h b/core/os/file_access.h
index c65b75369c..4930eae35a 100644
--- a/core/os/file_access.h
+++ b/core/os/file_access.h
@@ -56,6 +56,9 @@ public:
 	bool endian_swap;
 	bool real_is_double;
 
+	virtual uint32_t _get_unix_permissions(const String &p_file) = 0;
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) = 0;
+
 protected:
 	String fix_path(const String &p_path) const;
 	virtual Error _open(const String &p_path, int p_mode_flags) = 0; ///< open a file
@@ -148,14 +151,14 @@ public:
 
 	virtual Error reopen(const String &p_path, int p_mode_flags); ///< does not change the AccessType
 
-	virtual Error _chmod(const String &p_path, int p_mod) { return ERR_UNAVAILABLE; }
-
 	static FileAccess *create(AccessType p_access); /// Create a file access (for the current platform) this is the only portable way of accessing files.
 	static FileAccess *create_for_path(const String &p_path);
 	static FileAccess *open(const String &p_path, int p_mode_flags, Error *r_error = NULL); /// Create a file access (for the current platform) this is the only portable way of accessing files.
 	static CreateFunc get_create_func(AccessType p_access);
 	static bool exists(const String &p_name); ///< return true if a file exists
 	static uint64_t get_modified_time(const String &p_file);
+	static uint32_t get_unix_permissions(const String &p_file);
+	static Error set_unix_permissions(const String &p_file, uint32_t p_permissions);
 
 	static void set_backup_save(bool p_enable) { backup_save = p_enable; };
 	static bool is_backup_save_enabled() { return backup_save; };
@@ -164,7 +167,8 @@ public:
 	static String get_sha256(const String &p_file);
 	static String get_multiple_md5(const Vector<String> &p_file);
 
-	static Vector<uint8_t> get_file_as_array(const String &p_path);
+	static Vector<uint8_t> get_file_as_array(const String &p_path, Error *r_error = NULL);
+	static String get_file_as_string(const String &p_path, Error *r_error = NULL);
 
 	template <class T>
 	static void make_default(AccessType p_access) {
diff --git a/core/os/input.cpp b/core/os/input.cpp
index caa9fb1493..f04d4a1b3e 100644
--- a/core/os/input.cpp
+++ b/core/os/input.cpp
@@ -34,6 +34,10 @@
 #include "core/os/os.h"
 #include "core/project_settings.h"
 
+#ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+#endif
+
 Input *Input::singleton = NULL;
 
 Input *Input::get_singleton() {
@@ -89,6 +93,7 @@ void Input::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("action_press", "action", "strength"), &Input::action_press, DEFVAL(1.f));
 	ClassDB::bind_method(D_METHOD("action_release", "action"), &Input::action_release);
 	ClassDB::bind_method(D_METHOD("set_default_cursor_shape", "shape"), &Input::set_default_cursor_shape, DEFVAL(CURSOR_ARROW));
+	ClassDB::bind_method(D_METHOD("get_current_cursor_shape"), &Input::get_current_cursor_shape);
 	ClassDB::bind_method(D_METHOD("set_custom_mouse_cursor", "image", "shape", "hotspot"), &Input::set_custom_mouse_cursor, DEFVAL(CURSOR_ARROW), DEFVAL(Vector2()));
 	ClassDB::bind_method(D_METHOD("parse_input_event", "event"), &Input::parse_input_event);
 	ClassDB::bind_method(D_METHOD("set_use_accumulated_input", "enable"), &Input::set_use_accumulated_input);
@@ -122,6 +127,8 @@ void Input::_bind_methods() {
 void Input::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 #ifdef TOOLS_ENABLED
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+
 	String pf = p_function;
 	if (p_idx == 0 && (pf == "is_action_pressed" || pf == "action_press" || pf == "action_release" || pf == "is_action_just_pressed" || pf == "is_action_just_released" || pf == "get_action_strength")) {
 
@@ -135,7 +142,7 @@ void Input::get_argument_options(const StringName &p_function, int p_idx, List<S
 				continue;
 
 			String name = pi.name.substr(pi.name.find("/") + 1, pi.name.length());
-			r_options->push_back("\"" + name + "\"");
+			r_options->push_back(quote_style + name + quote_style);
 		}
 	}
 #endif
diff --git a/core/os/input.h b/core/os/input.h
index c8b80b28d0..de04f239e6 100644
--- a/core/os/input.h
+++ b/core/os/input.h
@@ -121,10 +121,10 @@ public:
 	virtual bool is_emulating_touch_from_mouse() const = 0;
 	virtual bool is_emulating_mouse_from_touch() const = 0;
 
-	virtual CursorShape get_default_cursor_shape() = 0;
+	virtual CursorShape get_default_cursor_shape() const = 0;
 	virtual void set_default_cursor_shape(CursorShape p_shape) = 0;
+	virtual CursorShape get_current_cursor_shape() const = 0;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape = CURSOR_ARROW, const Vector2 &p_hotspot = Vector2()) = 0;
-	virtual void set_mouse_in_window(bool p_in_window) = 0;
 
 	virtual String get_joy_button_string(int p_button) = 0;
 	virtual String get_joy_axis_string(int p_axis) = 0;
diff --git a/core/os/main_loop.h b/core/os/main_loop.h
index bfdf92acfa..ad734d3fc8 100644
--- a/core/os/main_loop.h
+++ b/core/os/main_loop.h
@@ -51,21 +51,19 @@ protected:
 
 public:
 	enum {
-		NOTIFICATION_WM_MOUSE_ENTER = 2,
-		NOTIFICATION_WM_MOUSE_EXIT = 3,
-		NOTIFICATION_WM_FOCUS_IN = 4,
-		NOTIFICATION_WM_FOCUS_OUT = 5,
-		NOTIFICATION_WM_QUIT_REQUEST = 6,
-		NOTIFICATION_WM_GO_BACK_REQUEST = 7,
-		NOTIFICATION_WM_UNFOCUS_REQUEST = 8,
-		NOTIFICATION_OS_MEMORY_WARNING = 9,
-		// Note: NOTIFICATION_TRANSLATION_CHANGED and NOTIFICATION_WM_ABOUT used to have id=10 and id=11 but these
-		// conflict with NOTIFICATION_ENTER_TREE (id=10) and NOTIFICATION_EXIT_TREE (id=11), so id=90 and id=91
-		// fixes this issue.
-		NOTIFICATION_TRANSLATION_CHANGED = 90,
-		NOTIFICATION_WM_ABOUT = 91,
-		NOTIFICATION_CRASH = 92,
-		NOTIFICATION_OS_IME_UPDATE = 93,
+		//make sure these are replicated in Node
+		NOTIFICATION_WM_MOUSE_ENTER = 1002,
+		NOTIFICATION_WM_MOUSE_EXIT = 1003,
+		NOTIFICATION_WM_FOCUS_IN = 1004,
+		NOTIFICATION_WM_FOCUS_OUT = 1005,
+		NOTIFICATION_WM_QUIT_REQUEST = 1006,
+		NOTIFICATION_WM_GO_BACK_REQUEST = 1007,
+		NOTIFICATION_WM_UNFOCUS_REQUEST = 1008,
+		NOTIFICATION_OS_MEMORY_WARNING = 1009,
+		NOTIFICATION_TRANSLATION_CHANGED = 1010,
+		NOTIFICATION_WM_ABOUT = 1011,
+		NOTIFICATION_CRASH = 1012,
+		NOTIFICATION_OS_IME_UPDATE = 1013,
 	};
 
 	virtual void input_event(const Ref<InputEvent> &p_event);
diff --git a/core/os/midi_driver.cpp b/core/os/midi_driver.cpp
index 0d7ad23d68..7cb7ae130f 100644
--- a/core/os/midi_driver.cpp
+++ b/core/os/midi_driver.cpp
@@ -75,6 +75,11 @@ void MIDIDriver::receive_input_packet(uint64_t timestamp, uint8_t *data, uint32_
 			if (length >= 3) {
 				event->set_pitch(data[1]);
 				event->set_velocity(data[2]);
+
+				if (event->get_message() == MIDI_MESSAGE_NOTE_ON && event->get_velocity() == 0) {
+					// https://www.midi.org/forum/228-writing-midi-software-send-note-off,-or-zero-velocity-note-on
+					event->set_message(MIDI_MESSAGE_NOTE_OFF);
+				}
 			}
 			break;
 
diff --git a/core/os/os.cpp b/core/os/os.cpp
index 03e63f636e..ea378c9e83 100644
--- a/core/os/os.cpp
+++ b/core/os/os.cpp
@@ -220,6 +220,16 @@ int OS::get_virtual_keyboard_height() const {
 	return 0;
 }
 
+void OS::set_cursor_shape(CursorShape p_shape) {
+}
+
+OS::CursorShape OS::get_cursor_shape() const {
+	return CURSOR_ARROW;
+}
+
+void OS::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
+}
+
 void OS::print_all_resources(String p_to_file) {
 
 	ERR_FAIL_COND(p_to_file != "" && _OSPRF);
diff --git a/core/os/os.h b/core/os/os.h
index d02d5a2c84..4ae8a354e5 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -45,6 +45,8 @@
 	@author Juan Linietsky <reduzio@gmail.com>
 */
 
+class Mutex;
+
 class OS {
 
 	static OS *singleton;
@@ -260,7 +262,7 @@ public:
 	virtual int get_low_processor_usage_mode_sleep_usec() const;
 
 	virtual String get_executable_path() const;
-	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false) = 0;
+	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL) = 0;
 	virtual Error kill(const ProcessID &p_pid) = 0;
 	virtual int get_process_id() const;
 
@@ -377,8 +379,9 @@ public:
 	// returns height of the currently shown virtual keyboard (0 if keyboard is hidden)
 	virtual int get_virtual_keyboard_height() const;
 
-	virtual void set_cursor_shape(CursorShape p_shape) = 0;
-	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) = 0;
+	virtual void set_cursor_shape(CursorShape p_shape);
+	virtual CursorShape get_cursor_shape() const;
+	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
 
 	virtual bool get_swap_ok_cancel() { return false; }
 	virtual void dump_memory_to_file(const char *p_file);
diff --git a/core/packed_data_container.cpp b/core/packed_data_container.cpp
index 6c17f42b13..fa60be64a7 100644
--- a/core/packed_data_container.cpp
+++ b/core/packed_data_container.cpp
@@ -114,7 +114,7 @@ Variant PackedDataContainer::_get_at_ofs(uint32_t p_ofs, const uint8_t *p_buf, b
 	} else {
 
 		Variant v;
-		Error rerr = decode_variant(v, p_buf + p_ofs, datalen - p_ofs, NULL);
+		Error rerr = decode_variant(v, p_buf + p_ofs, datalen - p_ofs, NULL, false);
 
 		if (rerr != OK) {
 
@@ -249,9 +249,9 @@ uint32_t PackedDataContainer::_pack(const Variant &p_data, Vector<uint8_t> &tmpd
 
 			uint32_t pos = tmpdata.size();
 			int len;
-			encode_variant(p_data, NULL, len);
+			encode_variant(p_data, NULL, len, false);
 			tmpdata.resize(tmpdata.size() + len);
-			encode_variant(p_data, &tmpdata.write[pos], len);
+			encode_variant(p_data, &tmpdata.write[pos], len, false);
 			return pos;
 
 		} break;
@@ -319,7 +319,8 @@ uint32_t PackedDataContainer::_pack(const Variant &p_data, Vector<uint8_t> &tmpd
 
 		} break;
 
-		default: {}
+		default: {
+		}
 	}
 
 	return OK;
diff --git a/core/project_settings.cpp b/core/project_settings.cpp
index 02c7c9e029..c86d1567dd 100644
--- a/core/project_settings.cpp
+++ b/core/project_settings.cpp
@@ -501,7 +501,7 @@ Error ProjectSettings::_load_settings_binary(const String p_path) {
 		d.resize(vlen);
 		f->get_buffer(d.ptrw(), vlen);
 		Variant value;
-		err = decode_variant(value, d.ptr(), d.size());
+		err = decode_variant(value, d.ptr(), d.size(), NULL, true);
 		ERR_EXPLAIN("Error decoding property: " + key);
 		ERR_CONTINUE(err != OK);
 		set(key, value);
@@ -656,7 +656,7 @@ Error ProjectSettings::_save_settings_binary(const String &p_file, const Map<Str
 		file->store_string(key);
 
 		int len;
-		err = encode_variant(p_custom_features, NULL, len);
+		err = encode_variant(p_custom_features, NULL, len, false);
 		if (err != OK) {
 			memdelete(file);
 			ERR_FAIL_V(err);
@@ -665,7 +665,7 @@ Error ProjectSettings::_save_settings_binary(const String &p_file, const Map<Str
 		Vector<uint8_t> buff;
 		buff.resize(len);
 
-		err = encode_variant(p_custom_features, buff.ptrw(), len);
+		err = encode_variant(p_custom_features, buff.ptrw(), len, false);
 		if (err != OK) {
 			memdelete(file);
 			ERR_FAIL_V(err);
@@ -694,7 +694,7 @@ Error ProjectSettings::_save_settings_binary(const String &p_file, const Map<Str
 			file->store_string(key);
 
 			int len;
-			err = encode_variant(value, NULL, len);
+			err = encode_variant(value, NULL, len, true);
 			if (err != OK)
 				memdelete(file);
 			ERR_FAIL_COND_V(err != OK, ERR_INVALID_DATA);
@@ -702,7 +702,7 @@ Error ProjectSettings::_save_settings_binary(const String &p_file, const Map<Str
 			Vector<uint8_t> buff;
 			buff.resize(len);
 
-			err = encode_variant(value, buff.ptrw(), len);
+			err = encode_variant(value, buff.ptrw(), len, true);
 			if (err != OK)
 				memdelete(file);
 			ERR_FAIL_COND_V(err != OK, ERR_INVALID_DATA);
@@ -1004,6 +1004,8 @@ ProjectSettings::ProjectSettings() {
 	GLOBAL_DEF("application/config/use_custom_user_dir", false);
 	GLOBAL_DEF("application/config/custom_user_dir_name", "");
 	GLOBAL_DEF("application/config/project_settings_override", "");
+	GLOBAL_DEF("audio/default_bus_layout", "res://default_bus_layout.tres");
+	custom_prop_info["audio/default_bus_layout"] = PropertyInfo(Variant::STRING, "audio/default_bus_layout", PROPERTY_HINT_FILE, "*.tres");
 
 	action = Dictionary();
 	action["deadzone"] = Variant(0.5f);
diff --git a/core/reference.h b/core/reference.h
index f3fcc922c7..8a19f846c7 100644
--- a/core/reference.h
+++ b/core/reference.h
@@ -197,6 +197,19 @@ public:
 		r.reference = NULL;
 	}
 
+	template <class T_Other>
+	void reference_ptr(T_Other *p_ptr) {
+		if (reference == p_ptr) {
+			return;
+		}
+		unref();
+
+		T *r = Object::cast_to<T>(p_ptr);
+		if (r) {
+			ref_pointer(r);
+		}
+	}
+
 	Ref(const Ref &p_from) {
 
 		reference = NULL;
@@ -362,7 +375,8 @@ struct PtrToArg<const RefPtr &> {
 
 template <class T>
 struct GetTypeInfo<Ref<T> > {
-	enum { VARIANT_TYPE = Variant::OBJECT };
+	static const Variant::Type VARIANT_TYPE = Variant::OBJECT;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(Variant::OBJECT, String(), PROPERTY_HINT_RESOURCE_TYPE, T::get_class_static());
@@ -371,7 +385,8 @@ struct GetTypeInfo<Ref<T> > {
 
 template <class T>
 struct GetTypeInfo<const Ref<T> &> {
-	enum { VARIANT_TYPE = Variant::OBJECT };
+	static const Variant::Type VARIANT_TYPE = Variant::OBJECT;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(Variant::OBJECT, String(), PROPERTY_HINT_RESOURCE_TYPE, T::get_class_static());
diff --git a/core/resource.cpp b/core/resource.cpp
index 74c93cd790..74e2c1ed6b 100644
--- a/core/resource.cpp
+++ b/core/resource.cpp
@@ -363,6 +363,26 @@ bool Resource::is_translation_remapped() const {
 	return remapped_list.in_list();
 }
 
+#ifdef TOOLS_ENABLED
+//helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored
+void Resource::set_id_for_path(const String &p_path, int p_id) {
+	if (p_id == -1) {
+		id_for_path.erase(p_path);
+	} else {
+		id_for_path[p_path] = p_id;
+	}
+}
+
+int Resource::get_id_for_path(const String &p_path) const {
+
+	if (id_for_path.has(p_path)) {
+		return id_for_path[p_path];
+	} else {
+		return -1;
+	}
+}
+#endif
+
 void Resource::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_path", "path"), &Resource::_set_path);
diff --git a/core/resource.h b/core/resource.h
index a4d9e998ac..853b2859c7 100644
--- a/core/resource.h
+++ b/core/resource.h
@@ -88,7 +88,9 @@ protected:
 
 	void _set_path(const String &p_path);
 	void _take_over_path(const String &p_path);
-
+#ifdef TOOLS_ENABLED
+	Map<String, int> id_for_path;
+#endif
 public:
 	static Node *(*_get_local_scene_func)(); //used by editor
 
@@ -137,6 +139,12 @@ public:
 
 	virtual RID get_rid() const; // some resources may offer conversion to RID
 
+#ifdef TOOLS_ENABLED
+	//helps keep IDs same number when loading/saving scenes. -1 clears ID and it Returns -1 when no id stored
+	void set_id_for_path(const String &p_path, int p_id);
+	int get_id_for_path(const String &p_path) const;
+#endif
+
 	Resource();
 	~Resource();
 };
diff --git a/core/script_language.h b/core/script_language.h
index b6d7bea9c7..005e21e2cc 100644
--- a/core/script_language.h
+++ b/core/script_language.h
@@ -205,6 +205,8 @@ public:
 	static ScriptCodeCompletionCache *get_singleton() { return singleton; }
 
 	ScriptCodeCompletionCache();
+
+	virtual ~ScriptCodeCompletionCache() {}
 };
 
 class ScriptLanguage {
diff --git a/core/string_builder.h b/core/string_builder.h
index 40d70e8f45..0c4985d230 100644
--- a/core/string_builder.h
+++ b/core/string_builder.h
@@ -70,6 +70,10 @@ public:
 		return appended_strings.size();
 	}
 
+	_FORCE_INLINE_ uint32_t get_string_length() const {
+		return string_length;
+	}
+
 	String as_string() const;
 
 	_FORCE_INLINE_ operator String() const {
diff --git a/core/translation.cpp b/core/translation.cpp
index 6921f1d9f1..0b55badc61 100644
--- a/core/translation.cpp
+++ b/core/translation.cpp
@@ -179,6 +179,7 @@ static const char *locale_list[] = {
 	"ff_SN", //  Fulah (Senegal)
 	"fi", //  Finnish
 	"fi_FI", //  Finnish (Finland)
+	"fil", //  Filipino
 	"fil_PH", //  Filipino (Philippines)
 	"fo_FO", //  Faroese (Faroe Islands)
 	"fr", //  French
@@ -227,6 +228,7 @@ static const char *locale_list[] = {
 	"ja", //  Japanese
 	"ja_JP", //  Japanese (Japan)
 	"kab_DZ", //  Kabyle (Algeria)
+	"ka", //  Georgian
 	"ka_GE", //  Georgian (Georgia)
 	"kk_KZ", //  Kazakh (Kazakhstan)
 	"kl_GL", //  Kalaallisut (Greenland)
@@ -257,10 +259,12 @@ static const char *locale_list[] = {
 	"mg_MG", //  Malagasy (Madagascar)
 	"mh_MH", //  Marshallese (Marshall Islands)
 	"mhr_RU", //  Eastern Mari (Russia)
-	"mi_NZ", //  Maori (New Zealand)
+	"mi", //  M�ori
+	"mi_NZ", //  M�ori (New Zealand)
 	"miq_NI", //  Mískito (Nicaragua)
 	"mk", //  Macedonian
 	"mk_MK", //  Macedonian (Macedonia)
+	"ml", //  Malayalam
 	"ml_IN", //  Malayalam (India)
 	"mni_IN", //  Manipuri (India)
 	"mn_MN", //  Mongolian (Mongolia)
@@ -326,6 +330,7 @@ static const char *locale_list[] = {
 	"sgs_LT", //  Samogitian (Lithuania)
 	"shs_CA", //  Shuswap (Canada)
 	"sid_ET", //  Sidamo (Ethiopia)
+	"si", //  Sinhala
 	"si_LK", //  Sinhala (Sri Lanka)
 	"sk", //  Slovak
 	"sk_SK", //  Slovak (Slovakia)
@@ -343,6 +348,7 @@ static const char *locale_list[] = {
 	"sq_MK", //  Albanian (Macedonia)
 	"sr", //  Serbian
 	"sr_Cyrl", //  Serbian (Cyrillic)
+	"sr_Latn", //  Serbian (Latin)
 	"sr_ME", //  Serbian (Montenegro)
 	"sr_RS", //  Serbian (Serbia)
 	"ss_ZA", //  Swati (South Africa)
@@ -357,6 +363,7 @@ static const char *locale_list[] = {
 	"ta_IN", //  Tamil (India)
 	"ta_LK", //  Tamil (Sri Lanka)
 	"tcy_IN", //  Tulu (India)
+	"te", //  Telugu
 	"te_IN", //  Telugu (India)
 	"tg_TJ", //  Tajik (Tajikistan)
 	"the_NP", //  Chitwania Tharu (Nepal)
@@ -540,6 +547,7 @@ static const char *locale_names[] = {
 	"Fulah (Senegal)",
 	"Finnish",
 	"Finnish (Finland)",
+	"Filipino",
 	"Filipino (Philippines)",
 	"Faroese (Faroe Islands)",
 	"French",
@@ -588,6 +596,7 @@ static const char *locale_names[] = {
 	"Japanese",
 	"Japanese (Japan)",
 	"Kabyle (Algeria)",
+	"Georgian",
 	"Georgian (Georgia)",
 	"Kazakh (Kazakhstan)",
 	"Kalaallisut (Greenland)",
@@ -618,10 +627,12 @@ static const char *locale_names[] = {
 	"Malagasy (Madagascar)",
 	"Marshallese (Marshall Islands)",
 	"Eastern Mari (Russia)",
-	"Maori (New Zealand)",
+	"M�ori",
+	"M�ori (New Zealand)",
 	"Mískito (Nicaragua)",
 	"Macedonian",
 	"Macedonian (Macedonia)",
+	"Malayalam",
 	"Malayalam (India)",
 	"Manipuri (India)",
 	"Mongolian (Mongolia)",
@@ -687,6 +698,7 @@ static const char *locale_names[] = {
 	"Samogitian (Lithuania)",
 	"Shuswap (Canada)",
 	"Sidamo (Ethiopia)",
+	"Sinhala",
 	"Sinhala (Sri Lanka)",
 	"Slovak",
 	"Slovak (Slovakia)",
@@ -704,6 +716,7 @@ static const char *locale_names[] = {
 	"Albanian (Macedonia)",
 	"Serbian",
 	"Serbian (Cyrillic)",
+	"Serbian (Latin)",
 	"Serbian (Montenegro)",
 	"Serbian (Serbia)",
 	"Swati (South Africa)",
@@ -718,6 +731,7 @@ static const char *locale_names[] = {
 	"Tamil (India)",
 	"Tamil (Sri Lanka)",
 	"Tulu (India)",
+	"Telugu",
 	"Telugu (India)",
 	"Tajik (Tajikistan)",
 	"Chitwania Tharu (Nepal)",
@@ -968,6 +982,19 @@ String TranslationServer::get_locale_name(const String &p_locale) const {
 	return locale_name_map[p_locale];
 }
 
+Array TranslationServer::get_loaded_locales() const {
+	Array locales;
+	for (const Set<Ref<Translation> >::Element *E = translations.front(); E; E = E->next()) {
+
+		const Ref<Translation> &t = E->get();
+		String l = t->get_locale();
+
+		locales.push_back(l);
+	}
+
+	return locales;
+}
+
 Vector<String> TranslationServer::get_all_locales() {
 
 	Vector<String> locales;
@@ -1168,6 +1195,8 @@ void TranslationServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("remove_translation", "translation"), &TranslationServer::remove_translation);
 
 	ClassDB::bind_method(D_METHOD("clear"), &TranslationServer::clear);
+
+	ClassDB::bind_method(D_METHOD("get_loaded_locales"), &TranslationServer::get_loaded_locales);
 }
 
 void TranslationServer::load_translations() {
diff --git a/core/translation.h b/core/translation.h
index b12bad0d72..d172b9ecf2 100644
--- a/core/translation.h
+++ b/core/translation.h
@@ -94,6 +94,8 @@ public:
 
 	String get_locale_name(const String &p_locale) const;
 
+	Array get_loaded_locales() const;
+
 	void add_translation(const Ref<Translation> &p_translation);
 	void remove_translation(const Ref<Translation> &p_translation);
 
diff --git a/core/type_info.h b/core/type_info.h
index c38688fea1..d85a63ee42 100644
--- a/core/type_info.h
+++ b/core/type_info.h
@@ -67,43 +67,80 @@ struct TypeInherits {
 							  !TypesAreSame<B volatile const, void volatile const>::value;
 };
 
+namespace GodotTypeInfo {
+enum Metadata {
+	METADATA_NONE,
+	METADATA_INT_IS_INT8,
+	METADATA_INT_IS_INT16,
+	METADATA_INT_IS_INT32,
+	METADATA_INT_IS_INT64,
+	METADATA_INT_IS_UINT8,
+	METADATA_INT_IS_UINT16,
+	METADATA_INT_IS_UINT32,
+	METADATA_INT_IS_UINT64,
+	METADATA_REAL_IS_FLOAT,
+	METADATA_REAL_IS_DOUBLE
+};
+}
+
 template <class T, typename = void>
 struct GetTypeInfo {
 	static const Variant::Type VARIANT_TYPE = Variant::NIL;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		ERR_PRINT("GetTypeInfo fallback. Bug!");
 		return PropertyInfo(); // Not "Nil", this is an error
 	}
 };
 
-#define MAKE_TYPE_INFO(m_type, m_var_type)                    \
-	template <>                                               \
-	struct GetTypeInfo<m_type> {                              \
-		static const Variant::Type VARIANT_TYPE = m_var_type; \
-		static inline PropertyInfo get_class_info() {         \
-			return PropertyInfo(VARIANT_TYPE, String());      \
-		}                                                     \
-	};                                                        \
-	template <>                                               \
-	struct GetTypeInfo<const m_type &> {                      \
-		static const Variant::Type VARIANT_TYPE = m_var_type; \
-		static inline PropertyInfo get_class_info() {         \
-			return PropertyInfo(VARIANT_TYPE, String());      \
-		}                                                     \
+#define MAKE_TYPE_INFO(m_type, m_var_type)                                            \
+	template <>                                                                       \
+	struct GetTypeInfo<m_type> {                                                      \
+		static const Variant::Type VARIANT_TYPE = m_var_type;                         \
+		static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE; \
+		static inline PropertyInfo get_class_info() {                                 \
+			return PropertyInfo(VARIANT_TYPE, String());                              \
+		}                                                                             \
+	};                                                                                \
+	template <>                                                                       \
+	struct GetTypeInfo<const m_type &> {                                              \
+		static const Variant::Type VARIANT_TYPE = m_var_type;                         \
+		static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE; \
+		static inline PropertyInfo get_class_info() {                                 \
+			return PropertyInfo(VARIANT_TYPE, String());                              \
+		}                                                                             \
+	};
+
+#define MAKE_TYPE_INFO_WITH_META(m_type, m_var_type, m_metadata)    \
+	template <>                                                     \
+	struct GetTypeInfo<m_type> {                                    \
+		static const Variant::Type VARIANT_TYPE = m_var_type;       \
+		static const GodotTypeInfo::Metadata METADATA = m_metadata; \
+		static inline PropertyInfo get_class_info() {               \
+			return PropertyInfo(VARIANT_TYPE, String());            \
+		}                                                           \
+	};                                                              \
+	template <>                                                     \
+	struct GetTypeInfo<const m_type &> {                            \
+		static const Variant::Type VARIANT_TYPE = m_var_type;       \
+		static const GodotTypeInfo::Metadata METADATA = m_metadata; \
+		static inline PropertyInfo get_class_info() {               \
+			return PropertyInfo(VARIANT_TYPE, String());            \
+		}                                                           \
 	};
 
 MAKE_TYPE_INFO(bool, Variant::BOOL)
-MAKE_TYPE_INFO(uint8_t, Variant::INT)
-MAKE_TYPE_INFO(int8_t, Variant::INT)
-MAKE_TYPE_INFO(uint16_t, Variant::INT)
-MAKE_TYPE_INFO(int16_t, Variant::INT)
-MAKE_TYPE_INFO(uint32_t, Variant::INT)
-MAKE_TYPE_INFO(int32_t, Variant::INT)
-MAKE_TYPE_INFO(int64_t, Variant::INT)
-MAKE_TYPE_INFO(uint64_t, Variant::INT)
+MAKE_TYPE_INFO_WITH_META(uint8_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_UINT8)
+MAKE_TYPE_INFO_WITH_META(int8_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_INT8)
+MAKE_TYPE_INFO_WITH_META(uint16_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_UINT16)
+MAKE_TYPE_INFO_WITH_META(int16_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_INT16)
+MAKE_TYPE_INFO_WITH_META(uint32_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_UINT32)
+MAKE_TYPE_INFO_WITH_META(int32_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_INT32)
+MAKE_TYPE_INFO_WITH_META(uint64_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_UINT64)
+MAKE_TYPE_INFO_WITH_META(int64_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_INT64)
 MAKE_TYPE_INFO(wchar_t, Variant::INT)
-MAKE_TYPE_INFO(float, Variant::REAL)
-MAKE_TYPE_INFO(double, Variant::REAL)
+MAKE_TYPE_INFO_WITH_META(float, Variant::REAL, GodotTypeInfo::METADATA_REAL_IS_FLOAT)
+MAKE_TYPE_INFO_WITH_META(double, Variant::REAL, GodotTypeInfo::METADATA_REAL_IS_DOUBLE)
 
 MAKE_TYPE_INFO(String, Variant::STRING)
 MAKE_TYPE_INFO(Vector2, Variant::VECTOR2)
@@ -138,6 +175,7 @@ MAKE_TYPE_INFO(BSP_Tree, Variant::DICTIONARY)
 template <>
 struct GetTypeInfo<RefPtr> {
 	static const Variant::Type VARIANT_TYPE = Variant::OBJECT;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(Variant::OBJECT, String(), PROPERTY_HINT_RESOURCE_TYPE, "Reference");
 	}
@@ -145,6 +183,7 @@ struct GetTypeInfo<RefPtr> {
 template <>
 struct GetTypeInfo<const RefPtr &> {
 	static const Variant::Type VARIANT_TYPE = Variant::OBJECT;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(Variant::OBJECT, String(), PROPERTY_HINT_RESOURCE_TYPE, "Reference");
 	}
@@ -154,6 +193,7 @@ struct GetTypeInfo<const RefPtr &> {
 template <>
 struct GetTypeInfo<Variant> {
 	static const Variant::Type VARIANT_TYPE = Variant::NIL;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(Variant::NIL, String(), PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_NIL_IS_VARIANT);
 	}
@@ -162,25 +202,28 @@ struct GetTypeInfo<Variant> {
 template <>
 struct GetTypeInfo<const Variant &> {
 	static const Variant::Type VARIANT_TYPE = Variant::NIL;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(Variant::NIL, String(), PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_NIL_IS_VARIANT);
 	}
 };
 
-#define MAKE_TEMPLATE_TYPE_INFO(m_template, m_type, m_var_type) \
-	template <>                                                 \
-	struct GetTypeInfo<m_template<m_type> > {                   \
-		static const Variant::Type VARIANT_TYPE = m_var_type;   \
-		static inline PropertyInfo get_class_info() {           \
-			return PropertyInfo(VARIANT_TYPE, String());        \
-		}                                                       \
-	};                                                          \
-	template <>                                                 \
-	struct GetTypeInfo<const m_template<m_type> &> {            \
-		static const Variant::Type VARIANT_TYPE = m_var_type;   \
-		static inline PropertyInfo get_class_info() {           \
-			return PropertyInfo(VARIANT_TYPE, String());        \
-		}                                                       \
+#define MAKE_TEMPLATE_TYPE_INFO(m_template, m_type, m_var_type)                       \
+	template <>                                                                       \
+	struct GetTypeInfo<m_template<m_type> > {                                         \
+		static const Variant::Type VARIANT_TYPE = m_var_type;                         \
+		static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE; \
+		static inline PropertyInfo get_class_info() {                                 \
+			return PropertyInfo(VARIANT_TYPE, String());                              \
+		}                                                                             \
+	};                                                                                \
+	template <>                                                                       \
+	struct GetTypeInfo<const m_template<m_type> &> {                                  \
+		static const Variant::Type VARIANT_TYPE = m_var_type;                         \
+		static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE; \
+		static inline PropertyInfo get_class_info() {                                 \
+			return PropertyInfo(VARIANT_TYPE, String());                              \
+		}                                                                             \
 	};
 
 MAKE_TEMPLATE_TYPE_INFO(Vector, uint8_t, Variant::POOL_BYTE_ARRAY)
@@ -202,6 +245,7 @@ MAKE_TEMPLATE_TYPE_INFO(PoolVector, Face3, Variant::POOL_VECTOR3_ARRAY)
 template <typename T>
 struct GetTypeInfo<T *, typename EnableIf<TypeInherits<Object, T>::value>::type> {
 	static const Variant::Type VARIANT_TYPE = Variant::OBJECT;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(StringName(T::get_class_static()));
 	}
@@ -210,6 +254,7 @@ struct GetTypeInfo<T *, typename EnableIf<TypeInherits<Object, T>::value>::type>
 template <typename T>
 struct GetTypeInfo<const T *, typename EnableIf<TypeInherits<Object, T>::value>::type> {
 	static const Variant::Type VARIANT_TYPE = Variant::OBJECT;
+	static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;
 	static inline PropertyInfo get_class_info() {
 		return PropertyInfo(StringName(T::get_class_static()));
 	}
@@ -219,6 +264,7 @@ struct GetTypeInfo<const T *, typename EnableIf<TypeInherits<Object, T>::value>:
 	template <>                                                                                                                                                                   \
 	struct GetTypeInfo<m_impl> {                                                                                                                                                  \
 		static const Variant::Type VARIANT_TYPE = Variant::INT;                                                                                                                   \
+		static const GodotTypeInfo::Metadata METADATA = GodotTypeInfo::METADATA_NONE;                                                                                             \
 		static inline PropertyInfo get_class_info() {                                                                                                                             \
 			return PropertyInfo(Variant::INT, String(), PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_CLASS_IS_ENUM, String(#m_enum).replace("::", ".")); \
 		}                                                                                                                                                                         \
diff --git a/core/typedefs.h b/core/typedefs.h
index 78688ff311..660139b90a 100644
--- a/core/typedefs.h
+++ b/core/typedefs.h
@@ -328,4 +328,31 @@ struct _GlobalLock {
 #define _PRINTF_FORMAT_ATTRIBUTE_2_3
 #endif
 
+/** This is needed due to a strange OpenGL API that expects a pointer
+ *  type for an argument that is actually an offset.
+ */
+#define CAST_INT_TO_UCHAR_PTR(ptr) ((uint8_t *)(uintptr_t)(ptr))
+
+/** Hint for compilers that this fallthrough in a switch is intentional.
+ *  Can be replaced by [[fallthrough]] annotation if we move to C++17.
+ *  Including conditional support for it for people who set -std=c++17
+ *  themselves.
+ *  Requires a trailing semicolon when used.
+ */
+#if __cplusplus >= 201703L
+#define FALLTHROUGH [[fallthrough]]
+#elif defined(__GNUC__) && __GNUC__ >= 7
+#define FALLTHROUGH __attribute__((fallthrough))
+#elif defined(__llvm__) && __cplusplus >= 201103L && defined(__has_feature)
+#if __has_feature(cxx_attributes) && defined(__has_warning)
+#if __has_warning("-Wimplicit-fallthrough")
+#define FALLTHROUGH [[clang::fallthrough]]
+#endif
+#endif
+#endif
+
+#ifndef FALLTHROUGH
+#define FALLTHROUGH
+#endif
+
 #endif // TYPEDEFS_H
diff --git a/core/ucaps.h b/core/ucaps.h
index 5dd81296dd..ae5729a53d 100644
--- a/core/ucaps.h
+++ b/core/ucaps.h
@@ -704,672 +704,672 @@ static const int caps_table[CAPS_LEN][2] = {
 };
 
 static const int reverse_caps_table[CAPS_LEN - 1][2] = {
-	{ 0x41, 0x61 },
-	{ 0x42, 0x62 },
-	{ 0x43, 0x63 },
-	{ 0x44, 0x64 },
-	{ 0x45, 0x65 },
-	{ 0x46, 0x66 },
-	{ 0x47, 0x67 },
-	{ 0x48, 0x68 },
-	{ 0x49, 0x69 },
-	{ 0x4a, 0x6a },
-	{ 0x4b, 0x6b },
-	{ 0x4c, 0x6c },
-	{ 0x4d, 0x6d },
-	{ 0x4e, 0x6e },
-	{ 0x4f, 0x6f },
-	{ 0x50, 0x70 },
-	{ 0x51, 0x71 },
-	{ 0x52, 0x72 },
-	{ 0x53, 0x73 },
-	{ 0x54, 0x74 },
-	{ 0x55, 0x75 },
-	{ 0x56, 0x76 },
-	{ 0x57, 0x77 },
-	{ 0x58, 0x78 },
-	{ 0x59, 0x79 },
-	{ 0x5a, 0x7a },
-	{ 0xc0, 0xe0 },
-	{ 0xc1, 0xe1 },
-	{ 0xc2, 0xe2 },
-	{ 0xc3, 0xe3 },
-	{ 0xc4, 0xe4 },
-	{ 0xc5, 0xe5 },
-	{ 0xc6, 0xe6 },
-	{ 0xc7, 0xe7 },
-	{ 0xc8, 0xe8 },
-	{ 0xc9, 0xe9 },
-	{ 0xca, 0xea },
-	{ 0xcb, 0xeb },
-	{ 0xcc, 0xec },
-	{ 0xcd, 0xed },
-	{ 0xce, 0xee },
-	{ 0xcf, 0xef },
-	{ 0xd0, 0xf0 },
-	{ 0xd1, 0xf1 },
-	{ 0xd2, 0xf2 },
-	{ 0xd3, 0xf3 },
-	{ 0xd4, 0xf4 },
-	{ 0xd5, 0xf5 },
-	{ 0xd6, 0xf6 },
-	{ 0xd8, 0xf8 },
-	{ 0xd9, 0xf9 },
-	{ 0xda, 0xfa },
-	{ 0xdb, 0xfb },
-	{ 0xdc, 0xfc },
-	{ 0xdd, 0xfd },
-	{ 0xde, 0xfe },
-	{ 0x178, 0xff },
-	{ 0x100, 0x101 },
-	{ 0x102, 0x103 },
-	{ 0x104, 0x105 },
-	{ 0x106, 0x107 },
-	{ 0x108, 0x109 },
-	{ 0x10a, 0x10b },
-	{ 0x10c, 0x10d },
-	{ 0x10e, 0x10f },
-	{ 0x110, 0x111 },
-	{ 0x112, 0x113 },
-	{ 0x114, 0x115 },
-	{ 0x116, 0x117 },
-	{ 0x118, 0x119 },
-	{ 0x11a, 0x11b },
-	{ 0x11c, 0x11d },
-	{ 0x11e, 0x11f },
-	{ 0x120, 0x121 },
-	{ 0x122, 0x123 },
-	{ 0x124, 0x125 },
-	{ 0x126, 0x127 },
-	{ 0x128, 0x129 },
-	{ 0x12a, 0x12b },
-	{ 0x12c, 0x12d },
-	{ 0x12e, 0x12f },
-	//{0x49,0x131},
-	{ 0x132, 0x133 },
-	{ 0x134, 0x135 },
-	{ 0x136, 0x137 },
-	{ 0x139, 0x13a },
-	{ 0x13b, 0x13c },
-	{ 0x13d, 0x13e },
-	{ 0x13f, 0x140 },
-	{ 0x141, 0x142 },
-	{ 0x143, 0x144 },
-	{ 0x145, 0x146 },
-	{ 0x147, 0x148 },
-	{ 0x14a, 0x14b },
-	{ 0x14c, 0x14d },
-	{ 0x14e, 0x14f },
-	{ 0x150, 0x151 },
-	{ 0x152, 0x153 },
-	{ 0x154, 0x155 },
-	{ 0x156, 0x157 },
-	{ 0x158, 0x159 },
-	{ 0x15a, 0x15b },
-	{ 0x15c, 0x15d },
-	{ 0x15e, 0x15f },
-	{ 0x160, 0x161 },
-	{ 0x162, 0x163 },
-	{ 0x164, 0x165 },
-	{ 0x166, 0x167 },
-	{ 0x168, 0x169 },
-	{ 0x16a, 0x16b },
-	{ 0x16c, 0x16d },
-	{ 0x16e, 0x16f },
-	{ 0x170, 0x171 },
-	{ 0x172, 0x173 },
-	{ 0x174, 0x175 },
-	{ 0x176, 0x177 },
-	{ 0x179, 0x17a },
-	{ 0x17b, 0x17c },
-	{ 0x17d, 0x17e },
-	{ 0x182, 0x183 },
-	{ 0x184, 0x185 },
-	{ 0x187, 0x188 },
-	{ 0x18b, 0x18c },
-	{ 0x191, 0x192 },
-	{ 0x198, 0x199 },
-	{ 0x1a0, 0x1a1 },
-	{ 0x1a2, 0x1a3 },
-	{ 0x1a4, 0x1a5 },
-	{ 0x1a7, 0x1a8 },
-	{ 0x1ac, 0x1ad },
-	{ 0x1af, 0x1b0 },
-	{ 0x1b3, 0x1b4 },
-	{ 0x1b5, 0x1b6 },
-	{ 0x1b8, 0x1b9 },
-	{ 0x1bc, 0x1bd },
-	{ 0x1c4, 0x1c6 },
-	{ 0x1c7, 0x1c9 },
-	{ 0x1ca, 0x1cc },
-	{ 0x1cd, 0x1ce },
-	{ 0x1cf, 0x1d0 },
-	{ 0x1d1, 0x1d2 },
-	{ 0x1d3, 0x1d4 },
-	{ 0x1d5, 0x1d6 },
-	{ 0x1d7, 0x1d8 },
-	{ 0x1d9, 0x1da },
-	{ 0x1db, 0x1dc },
-	{ 0x1de, 0x1df },
-	{ 0x1e0, 0x1e1 },
-	{ 0x1e2, 0x1e3 },
-	{ 0x1e4, 0x1e5 },
-	{ 0x1e6, 0x1e7 },
-	{ 0x1e8, 0x1e9 },
-	{ 0x1ea, 0x1eb },
-	{ 0x1ec, 0x1ed },
-	{ 0x1ee, 0x1ef },
-	{ 0x1f1, 0x1f3 },
-	{ 0x1f4, 0x1f5 },
-	{ 0x1fa, 0x1fb },
-	{ 0x1fc, 0x1fd },
-	{ 0x1fe, 0x1ff },
-	{ 0x200, 0x201 },
-	{ 0x202, 0x203 },
-	{ 0x204, 0x205 },
-	{ 0x206, 0x207 },
-	{ 0x208, 0x209 },
-	{ 0x20a, 0x20b },
-	{ 0x20c, 0x20d },
-	{ 0x20e, 0x20f },
-	{ 0x210, 0x211 },
-	{ 0x212, 0x213 },
-	{ 0x214, 0x215 },
-	{ 0x216, 0x217 },
-	{ 0x181, 0x253 },
-	{ 0x186, 0x254 },
-	{ 0x18a, 0x257 },
-	{ 0x18e, 0x258 },
-	{ 0x18f, 0x259 },
-	{ 0x190, 0x25b },
-	{ 0x193, 0x260 },
-	{ 0x194, 0x263 },
-	{ 0x197, 0x268 },
-	{ 0x196, 0x269 },
-	{ 0x19c, 0x26f },
-	{ 0x19d, 0x272 },
-	{ 0x19f, 0x275 },
-	{ 0x1a9, 0x283 },
-	{ 0x1ae, 0x288 },
-	{ 0x1b1, 0x28a },
-	{ 0x1b2, 0x28b },
-	{ 0x1b7, 0x292 },
-	{ 0x386, 0x3ac },
-	{ 0x388, 0x3ad },
-	{ 0x389, 0x3ae },
-	{ 0x38a, 0x3af },
-	{ 0x391, 0x3b1 },
-	{ 0x392, 0x3b2 },
-	{ 0x393, 0x3b3 },
-	{ 0x394, 0x3b4 },
-	{ 0x395, 0x3b5 },
-	{ 0x396, 0x3b6 },
-	{ 0x397, 0x3b7 },
-	{ 0x398, 0x3b8 },
-	{ 0x399, 0x3b9 },
-	{ 0x39a, 0x3ba },
-	{ 0x39b, 0x3bb },
-	{ 0x39c, 0x3bc },
-	{ 0x39d, 0x3bd },
-	{ 0x39e, 0x3be },
-	{ 0x39f, 0x3bf },
-	{ 0x3a0, 0x3c0 },
-	{ 0x3a1, 0x3c1 },
-	{ 0x3a3, 0x3c3 },
-	{ 0x3a4, 0x3c4 },
-	{ 0x3a5, 0x3c5 },
-	{ 0x3a6, 0x3c6 },
-	{ 0x3a7, 0x3c7 },
-	{ 0x3a8, 0x3c8 },
-	{ 0x3a9, 0x3c9 },
-	{ 0x3aa, 0x3ca },
-	{ 0x3ab, 0x3cb },
-	{ 0x38c, 0x3cc },
-	{ 0x38e, 0x3cd },
-	{ 0x38f, 0x3ce },
-	{ 0x3e2, 0x3e3 },
-	{ 0x3e4, 0x3e5 },
-	{ 0x3e6, 0x3e7 },
-	{ 0x3e8, 0x3e9 },
-	{ 0x3ea, 0x3eb },
-	{ 0x3ec, 0x3ed },
-	{ 0x3ee, 0x3ef },
-	{ 0x410, 0x430 },
-	{ 0x411, 0x431 },
-	{ 0x412, 0x432 },
-	{ 0x413, 0x433 },
-	{ 0x414, 0x434 },
-	{ 0x415, 0x435 },
-	{ 0x416, 0x436 },
-	{ 0x417, 0x437 },
-	{ 0x418, 0x438 },
-	{ 0x419, 0x439 },
-	{ 0x41a, 0x43a },
-	{ 0x41b, 0x43b },
-	{ 0x41c, 0x43c },
-	{ 0x41d, 0x43d },
-	{ 0x41e, 0x43e },
-	{ 0x41f, 0x43f },
-	{ 0x420, 0x440 },
-	{ 0x421, 0x441 },
-	{ 0x422, 0x442 },
-	{ 0x423, 0x443 },
-	{ 0x424, 0x444 },
-	{ 0x425, 0x445 },
-	{ 0x426, 0x446 },
-	{ 0x427, 0x447 },
-	{ 0x428, 0x448 },
-	{ 0x429, 0x449 },
-	{ 0x42a, 0x44a },
-	{ 0x42b, 0x44b },
-	{ 0x42c, 0x44c },
-	{ 0x42d, 0x44d },
-	{ 0x42e, 0x44e },
-	{ 0x42f, 0x44f },
-	{ 0x401, 0x451 },
-	{ 0x402, 0x452 },
-	{ 0x403, 0x453 },
-	{ 0x404, 0x454 },
-	{ 0x405, 0x455 },
-	{ 0x406, 0x456 },
-	{ 0x407, 0x457 },
-	{ 0x408, 0x458 },
-	{ 0x409, 0x459 },
-	{ 0x40a, 0x45a },
-	{ 0x40b, 0x45b },
-	{ 0x40c, 0x45c },
-	{ 0x40e, 0x45e },
-	{ 0x40f, 0x45f },
-	{ 0x460, 0x461 },
-	{ 0x462, 0x463 },
-	{ 0x464, 0x465 },
-	{ 0x466, 0x467 },
-	{ 0x468, 0x469 },
-	{ 0x46a, 0x46b },
-	{ 0x46c, 0x46d },
-	{ 0x46e, 0x46f },
-	{ 0x470, 0x471 },
-	{ 0x472, 0x473 },
-	{ 0x474, 0x475 },
-	{ 0x476, 0x477 },
-	{ 0x478, 0x479 },
-	{ 0x47a, 0x47b },
-	{ 0x47c, 0x47d },
-	{ 0x47e, 0x47f },
-	{ 0x480, 0x481 },
-	{ 0x490, 0x491 },
-	{ 0x492, 0x493 },
-	{ 0x494, 0x495 },
-	{ 0x496, 0x497 },
-	{ 0x498, 0x499 },
-	{ 0x49a, 0x49b },
-	{ 0x49c, 0x49d },
-	{ 0x49e, 0x49f },
-	{ 0x4a0, 0x4a1 },
-	{ 0x4a2, 0x4a3 },
-	{ 0x4a4, 0x4a5 },
-	{ 0x4a6, 0x4a7 },
-	{ 0x4a8, 0x4a9 },
-	{ 0x4aa, 0x4ab },
-	{ 0x4ac, 0x4ad },
-	{ 0x4ae, 0x4af },
-	{ 0x4b0, 0x4b1 },
-	{ 0x4b2, 0x4b3 },
-	{ 0x4b4, 0x4b5 },
-	{ 0x4b6, 0x4b7 },
-	{ 0x4b8, 0x4b9 },
-	{ 0x4ba, 0x4bb },
-	{ 0x4bc, 0x4bd },
-	{ 0x4be, 0x4bf },
-	{ 0x4c1, 0x4c2 },
-	{ 0x4c3, 0x4c4 },
-	{ 0x4c7, 0x4c8 },
-	{ 0x4cb, 0x4cc },
-	{ 0x4d0, 0x4d1 },
-	{ 0x4d2, 0x4d3 },
-	{ 0x4d4, 0x4d5 },
-	{ 0x4d6, 0x4d7 },
-	{ 0x4d8, 0x4d9 },
-	{ 0x4da, 0x4db },
-	{ 0x4dc, 0x4dd },
-	{ 0x4de, 0x4df },
-	{ 0x4e0, 0x4e1 },
-	{ 0x4e2, 0x4e3 },
-	{ 0x4e4, 0x4e5 },
-	{ 0x4e6, 0x4e7 },
-	{ 0x4e8, 0x4e9 },
-	{ 0x4ea, 0x4eb },
-	{ 0x4ee, 0x4ef },
-	{ 0x4f0, 0x4f1 },
-	{ 0x4f2, 0x4f3 },
-	{ 0x4f4, 0x4f5 },
-	{ 0x4f8, 0x4f9 },
-	{ 0x531, 0x561 },
-	{ 0x532, 0x562 },
-	{ 0x533, 0x563 },
-	{ 0x534, 0x564 },
-	{ 0x535, 0x565 },
-	{ 0x536, 0x566 },
-	{ 0x537, 0x567 },
-	{ 0x538, 0x568 },
-	{ 0x539, 0x569 },
-	{ 0x53a, 0x56a },
-	{ 0x53b, 0x56b },
-	{ 0x53c, 0x56c },
-	{ 0x53d, 0x56d },
-	{ 0x53e, 0x56e },
-	{ 0x53f, 0x56f },
-	{ 0x540, 0x570 },
-	{ 0x541, 0x571 },
-	{ 0x542, 0x572 },
-	{ 0x543, 0x573 },
-	{ 0x544, 0x574 },
-	{ 0x545, 0x575 },
-	{ 0x546, 0x576 },
-	{ 0x547, 0x577 },
-	{ 0x548, 0x578 },
-	{ 0x549, 0x579 },
-	{ 0x54a, 0x57a },
-	{ 0x54b, 0x57b },
-	{ 0x54c, 0x57c },
-	{ 0x54d, 0x57d },
-	{ 0x54e, 0x57e },
-	{ 0x54f, 0x57f },
-	{ 0x550, 0x580 },
-	{ 0x551, 0x581 },
-	{ 0x552, 0x582 },
-	{ 0x553, 0x583 },
-	{ 0x554, 0x584 },
-	{ 0x555, 0x585 },
-	{ 0x556, 0x586 },
-	{ 0x10a0, 0x10d0 },
-	{ 0x10a1, 0x10d1 },
-	{ 0x10a2, 0x10d2 },
-	{ 0x10a3, 0x10d3 },
-	{ 0x10a4, 0x10d4 },
-	{ 0x10a5, 0x10d5 },
-	{ 0x10a6, 0x10d6 },
-	{ 0x10a7, 0x10d7 },
-	{ 0x10a8, 0x10d8 },
-	{ 0x10a9, 0x10d9 },
-	{ 0x10aa, 0x10da },
-	{ 0x10ab, 0x10db },
-	{ 0x10ac, 0x10dc },
-	{ 0x10ad, 0x10dd },
-	{ 0x10ae, 0x10de },
-	{ 0x10af, 0x10df },
-	{ 0x10b0, 0x10e0 },
-	{ 0x10b1, 0x10e1 },
-	{ 0x10b2, 0x10e2 },
-	{ 0x10b3, 0x10e3 },
-	{ 0x10b4, 0x10e4 },
-	{ 0x10b5, 0x10e5 },
-	{ 0x10b6, 0x10e6 },
-	{ 0x10b7, 0x10e7 },
-	{ 0x10b8, 0x10e8 },
-	{ 0x10b9, 0x10e9 },
-	{ 0x10ba, 0x10ea },
-	{ 0x10bb, 0x10eb },
-	{ 0x10bc, 0x10ec },
-	{ 0x10bd, 0x10ed },
-	{ 0x10be, 0x10ee },
-	{ 0x10bf, 0x10ef },
-	{ 0x10c0, 0x10f0 },
-	{ 0x10c1, 0x10f1 },
-	{ 0x10c2, 0x10f2 },
-	{ 0x10c3, 0x10f3 },
-	{ 0x10c4, 0x10f4 },
-	{ 0x10c5, 0x10f5 },
-	{ 0x1e00, 0x1e01 },
-	{ 0x1e02, 0x1e03 },
-	{ 0x1e04, 0x1e05 },
-	{ 0x1e06, 0x1e07 },
-	{ 0x1e08, 0x1e09 },
-	{ 0x1e0a, 0x1e0b },
-	{ 0x1e0c, 0x1e0d },
-	{ 0x1e0e, 0x1e0f },
-	{ 0x1e10, 0x1e11 },
-	{ 0x1e12, 0x1e13 },
-	{ 0x1e14, 0x1e15 },
-	{ 0x1e16, 0x1e17 },
-	{ 0x1e18, 0x1e19 },
-	{ 0x1e1a, 0x1e1b },
-	{ 0x1e1c, 0x1e1d },
-	{ 0x1e1e, 0x1e1f },
-	{ 0x1e20, 0x1e21 },
-	{ 0x1e22, 0x1e23 },
-	{ 0x1e24, 0x1e25 },
-	{ 0x1e26, 0x1e27 },
-	{ 0x1e28, 0x1e29 },
-	{ 0x1e2a, 0x1e2b },
-	{ 0x1e2c, 0x1e2d },
-	{ 0x1e2e, 0x1e2f },
-	{ 0x1e30, 0x1e31 },
-	{ 0x1e32, 0x1e33 },
-	{ 0x1e34, 0x1e35 },
-	{ 0x1e36, 0x1e37 },
-	{ 0x1e38, 0x1e39 },
-	{ 0x1e3a, 0x1e3b },
-	{ 0x1e3c, 0x1e3d },
-	{ 0x1e3e, 0x1e3f },
-	{ 0x1e40, 0x1e41 },
-	{ 0x1e42, 0x1e43 },
-	{ 0x1e44, 0x1e45 },
-	{ 0x1e46, 0x1e47 },
-	{ 0x1e48, 0x1e49 },
-	{ 0x1e4a, 0x1e4b },
-	{ 0x1e4c, 0x1e4d },
-	{ 0x1e4e, 0x1e4f },
-	{ 0x1e50, 0x1e51 },
-	{ 0x1e52, 0x1e53 },
-	{ 0x1e54, 0x1e55 },
-	{ 0x1e56, 0x1e57 },
-	{ 0x1e58, 0x1e59 },
-	{ 0x1e5a, 0x1e5b },
-	{ 0x1e5c, 0x1e5d },
-	{ 0x1e5e, 0x1e5f },
-	{ 0x1e60, 0x1e61 },
-	{ 0x1e62, 0x1e63 },
-	{ 0x1e64, 0x1e65 },
-	{ 0x1e66, 0x1e67 },
-	{ 0x1e68, 0x1e69 },
-	{ 0x1e6a, 0x1e6b },
-	{ 0x1e6c, 0x1e6d },
-	{ 0x1e6e, 0x1e6f },
-	{ 0x1e70, 0x1e71 },
-	{ 0x1e72, 0x1e73 },
-	{ 0x1e74, 0x1e75 },
-	{ 0x1e76, 0x1e77 },
-	{ 0x1e78, 0x1e79 },
-	{ 0x1e7a, 0x1e7b },
-	{ 0x1e7c, 0x1e7d },
-	{ 0x1e7e, 0x1e7f },
-	{ 0x1e80, 0x1e81 },
-	{ 0x1e82, 0x1e83 },
-	{ 0x1e84, 0x1e85 },
-	{ 0x1e86, 0x1e87 },
-	{ 0x1e88, 0x1e89 },
-	{ 0x1e8a, 0x1e8b },
-	{ 0x1e8c, 0x1e8d },
-	{ 0x1e8e, 0x1e8f },
-	{ 0x1e90, 0x1e91 },
-	{ 0x1e92, 0x1e93 },
-	{ 0x1e94, 0x1e95 },
-	{ 0x1ea0, 0x1ea1 },
-	{ 0x1ea2, 0x1ea3 },
-	{ 0x1ea4, 0x1ea5 },
-	{ 0x1ea6, 0x1ea7 },
-	{ 0x1ea8, 0x1ea9 },
-	{ 0x1eaa, 0x1eab },
-	{ 0x1eac, 0x1ead },
-	{ 0x1eae, 0x1eaf },
-	{ 0x1eb0, 0x1eb1 },
-	{ 0x1eb2, 0x1eb3 },
-	{ 0x1eb4, 0x1eb5 },
-	{ 0x1eb6, 0x1eb7 },
-	{ 0x1eb8, 0x1eb9 },
-	{ 0x1eba, 0x1ebb },
-	{ 0x1ebc, 0x1ebd },
-	{ 0x1ebe, 0x1ebf },
-	{ 0x1ec0, 0x1ec1 },
-	{ 0x1ec2, 0x1ec3 },
-	{ 0x1ec4, 0x1ec5 },
-	{ 0x1ec6, 0x1ec7 },
-	{ 0x1ec8, 0x1ec9 },
-	{ 0x1eca, 0x1ecb },
-	{ 0x1ecc, 0x1ecd },
-	{ 0x1ece, 0x1ecf },
-	{ 0x1ed0, 0x1ed1 },
-	{ 0x1ed2, 0x1ed3 },
-	{ 0x1ed4, 0x1ed5 },
-	{ 0x1ed6, 0x1ed7 },
-	{ 0x1ed8, 0x1ed9 },
-	{ 0x1eda, 0x1edb },
-	{ 0x1edc, 0x1edd },
-	{ 0x1ede, 0x1edf },
-	{ 0x1ee0, 0x1ee1 },
-	{ 0x1ee2, 0x1ee3 },
-	{ 0x1ee4, 0x1ee5 },
-	{ 0x1ee6, 0x1ee7 },
-	{ 0x1ee8, 0x1ee9 },
-	{ 0x1eea, 0x1eeb },
-	{ 0x1eec, 0x1eed },
-	{ 0x1eee, 0x1eef },
-	{ 0x1ef0, 0x1ef1 },
-	{ 0x1ef2, 0x1ef3 },
-	{ 0x1ef4, 0x1ef5 },
-	{ 0x1ef6, 0x1ef7 },
-	{ 0x1ef8, 0x1ef9 },
-	{ 0x1f08, 0x1f00 },
-	{ 0x1f09, 0x1f01 },
-	{ 0x1f0a, 0x1f02 },
-	{ 0x1f0b, 0x1f03 },
-	{ 0x1f0c, 0x1f04 },
-	{ 0x1f0d, 0x1f05 },
-	{ 0x1f0e, 0x1f06 },
-	{ 0x1f0f, 0x1f07 },
-	{ 0x1f18, 0x1f10 },
-	{ 0x1f19, 0x1f11 },
-	{ 0x1f1a, 0x1f12 },
-	{ 0x1f1b, 0x1f13 },
-	{ 0x1f1c, 0x1f14 },
-	{ 0x1f1d, 0x1f15 },
-	{ 0x1f28, 0x1f20 },
-	{ 0x1f29, 0x1f21 },
-	{ 0x1f2a, 0x1f22 },
-	{ 0x1f2b, 0x1f23 },
-	{ 0x1f2c, 0x1f24 },
-	{ 0x1f2d, 0x1f25 },
-	{ 0x1f2e, 0x1f26 },
-	{ 0x1f2f, 0x1f27 },
-	{ 0x1f38, 0x1f30 },
-	{ 0x1f39, 0x1f31 },
-	{ 0x1f3a, 0x1f32 },
-	{ 0x1f3b, 0x1f33 },
-	{ 0x1f3c, 0x1f34 },
-	{ 0x1f3d, 0x1f35 },
-	{ 0x1f3e, 0x1f36 },
-	{ 0x1f3f, 0x1f37 },
-	{ 0x1f48, 0x1f40 },
-	{ 0x1f49, 0x1f41 },
-	{ 0x1f4a, 0x1f42 },
-	{ 0x1f4b, 0x1f43 },
-	{ 0x1f4c, 0x1f44 },
-	{ 0x1f4d, 0x1f45 },
-	{ 0x1f59, 0x1f51 },
-	{ 0x1f5b, 0x1f53 },
-	{ 0x1f5d, 0x1f55 },
-	{ 0x1f5f, 0x1f57 },
-	{ 0x1f68, 0x1f60 },
-	{ 0x1f69, 0x1f61 },
-	{ 0x1f6a, 0x1f62 },
-	{ 0x1f6b, 0x1f63 },
-	{ 0x1f6c, 0x1f64 },
-	{ 0x1f6d, 0x1f65 },
-	{ 0x1f6e, 0x1f66 },
-	{ 0x1f6f, 0x1f67 },
-	{ 0x1f88, 0x1f80 },
-	{ 0x1f89, 0x1f81 },
-	{ 0x1f8a, 0x1f82 },
-	{ 0x1f8b, 0x1f83 },
-	{ 0x1f8c, 0x1f84 },
-	{ 0x1f8d, 0x1f85 },
-	{ 0x1f8e, 0x1f86 },
-	{ 0x1f8f, 0x1f87 },
-	{ 0x1f98, 0x1f90 },
-	{ 0x1f99, 0x1f91 },
-	{ 0x1f9a, 0x1f92 },
-	{ 0x1f9b, 0x1f93 },
-	{ 0x1f9c, 0x1f94 },
-	{ 0x1f9d, 0x1f95 },
-	{ 0x1f9e, 0x1f96 },
-	{ 0x1f9f, 0x1f97 },
-	{ 0x1fa8, 0x1fa0 },
-	{ 0x1fa9, 0x1fa1 },
-	{ 0x1faa, 0x1fa2 },
-	{ 0x1fab, 0x1fa3 },
-	{ 0x1fac, 0x1fa4 },
-	{ 0x1fad, 0x1fa5 },
-	{ 0x1fae, 0x1fa6 },
-	{ 0x1faf, 0x1fa7 },
-	{ 0x1fb8, 0x1fb0 },
-	{ 0x1fb9, 0x1fb1 },
-	{ 0x1fd8, 0x1fd0 },
-	{ 0x1fd9, 0x1fd1 },
-	{ 0x1fe8, 0x1fe0 },
-	{ 0x1fe9, 0x1fe1 },
-	{ 0x24b6, 0x24d0 },
-	{ 0x24b7, 0x24d1 },
-	{ 0x24b8, 0x24d2 },
-	{ 0x24b9, 0x24d3 },
-	{ 0x24ba, 0x24d4 },
-	{ 0x24bb, 0x24d5 },
-	{ 0x24bc, 0x24d6 },
-	{ 0x24bd, 0x24d7 },
-	{ 0x24be, 0x24d8 },
-	{ 0x24bf, 0x24d9 },
-	{ 0x24c0, 0x24da },
-	{ 0x24c1, 0x24db },
-	{ 0x24c2, 0x24dc },
-	{ 0x24c3, 0x24dd },
-	{ 0x24c4, 0x24de },
-	{ 0x24c5, 0x24df },
-	{ 0x24c6, 0x24e0 },
-	{ 0x24c7, 0x24e1 },
-	{ 0x24c8, 0x24e2 },
-	{ 0x24c9, 0x24e3 },
-	{ 0x24ca, 0x24e4 },
-	{ 0x24cb, 0x24e5 },
-	{ 0x24cc, 0x24e6 },
-	{ 0x24cd, 0x24e7 },
-	{ 0x24ce, 0x24e8 },
-	{ 0x24cf, 0x24e9 },
-	{ 0xff21, 0xff41 },
-	{ 0xff22, 0xff42 },
-	{ 0xff23, 0xff43 },
-	{ 0xff24, 0xff44 },
-	{ 0xff25, 0xff45 },
-	{ 0xff26, 0xff46 },
-	{ 0xff27, 0xff47 },
-	{ 0xff28, 0xff48 },
-	{ 0xff29, 0xff49 },
-	{ 0xff2a, 0xff4a },
-	{ 0xff2b, 0xff4b },
-	{ 0xff2c, 0xff4c },
-	{ 0xff2d, 0xff4d },
-	{ 0xff2e, 0xff4e },
-	{ 0xff2f, 0xff4f },
-	{ 0xff30, 0xff50 },
-	{ 0xff31, 0xff51 },
-	{ 0xff32, 0xff52 },
-	{ 0xff33, 0xff53 },
-	{ 0xff34, 0xff54 },
-	{ 0xff35, 0xff55 },
-	{ 0xff36, 0xff56 },
-	{ 0xff37, 0xff57 },
-	{ 0xff38, 0xff58 },
-	{ 0xff39, 0xff59 },
-	{ 0xff3a, 0xff5a }
+	{ 0x0041, 0x0061 },
+	{ 0x0042, 0x0062 },
+	{ 0x0043, 0x0063 },
+	{ 0x0044, 0x0064 },
+	{ 0x0045, 0x0065 },
+	{ 0x0046, 0x0066 },
+	{ 0x0047, 0x0067 },
+	{ 0x0048, 0x0068 },
+	{ 0x0049, 0x0069 },
+	// { 0x0049, 0x0131 }, // dotless I
+	{ 0x004A, 0x006A },
+	{ 0x004B, 0x006B },
+	{ 0x004C, 0x006C },
+	{ 0x004D, 0x006D },
+	{ 0x004E, 0x006E },
+	{ 0x004F, 0x006F },
+	{ 0x0050, 0x0070 },
+	{ 0x0051, 0x0071 },
+	{ 0x0052, 0x0072 },
+	{ 0x0053, 0x0073 },
+	{ 0x0054, 0x0074 },
+	{ 0x0055, 0x0075 },
+	{ 0x0056, 0x0076 },
+	{ 0x0057, 0x0077 },
+	{ 0x0058, 0x0078 },
+	{ 0x0059, 0x0079 },
+	{ 0x005A, 0x007A },
+	{ 0x00C0, 0x00E0 },
+	{ 0x00C1, 0x00E1 },
+	{ 0x00C2, 0x00E2 },
+	{ 0x00C3, 0x00E3 },
+	{ 0x00C4, 0x00E4 },
+	{ 0x00C5, 0x00E5 },
+	{ 0x00C6, 0x00E6 },
+	{ 0x00C7, 0x00E7 },
+	{ 0x00C8, 0x00E8 },
+	{ 0x00C9, 0x00E9 },
+	{ 0x00CA, 0x00EA },
+	{ 0x00CB, 0x00EB },
+	{ 0x00CC, 0x00EC },
+	{ 0x00CD, 0x00ED },
+	{ 0x00CE, 0x00EE },
+	{ 0x00CF, 0x00EF },
+	{ 0x00D0, 0x00F0 },
+	{ 0x00D1, 0x00F1 },
+	{ 0x00D2, 0x00F2 },
+	{ 0x00D3, 0x00F3 },
+	{ 0x00D4, 0x00F4 },
+	{ 0x00D5, 0x00F5 },
+	{ 0x00D6, 0x00F6 },
+	{ 0x00D8, 0x00F8 },
+	{ 0x00D9, 0x00F9 },
+	{ 0x00DA, 0x00FA },
+	{ 0x00DB, 0x00FB },
+	{ 0x00DC, 0x00FC },
+	{ 0x00DD, 0x00FD },
+	{ 0x00DE, 0x00FE },
+	{ 0x0100, 0x0101 },
+	{ 0x0102, 0x0103 },
+	{ 0x0104, 0x0105 },
+	{ 0x0106, 0x0107 },
+	{ 0x0108, 0x0109 },
+	{ 0x010A, 0x010B },
+	{ 0x010C, 0x010D },
+	{ 0x010E, 0x010F },
+	{ 0x0110, 0x0111 },
+	{ 0x0112, 0x0113 },
+	{ 0x0114, 0x0115 },
+	{ 0x0116, 0x0117 },
+	{ 0x0118, 0x0119 },
+	{ 0x011A, 0x011B },
+	{ 0x011C, 0x011D },
+	{ 0x011E, 0x011F },
+	{ 0x0120, 0x0121 },
+	{ 0x0122, 0x0123 },
+	{ 0x0124, 0x0125 },
+	{ 0x0126, 0x0127 },
+	{ 0x0128, 0x0129 },
+	{ 0x012A, 0x012B },
+	{ 0x012C, 0x012D },
+	{ 0x012E, 0x012F },
+	{ 0x0132, 0x0133 },
+	{ 0x0134, 0x0135 },
+	{ 0x0136, 0x0137 },
+	{ 0x0139, 0x013A },
+	{ 0x013B, 0x013C },
+	{ 0x013D, 0x013E },
+	{ 0x013F, 0x0140 },
+	{ 0x0141, 0x0142 },
+	{ 0x0143, 0x0144 },
+	{ 0x0145, 0x0146 },
+	{ 0x0147, 0x0148 },
+	{ 0x014A, 0x014B },
+	{ 0x014C, 0x014D },
+	{ 0x014E, 0x014F },
+	{ 0x0150, 0x0151 },
+	{ 0x0152, 0x0153 },
+	{ 0x0154, 0x0155 },
+	{ 0x0156, 0x0157 },
+	{ 0x0158, 0x0159 },
+	{ 0x015A, 0x015B },
+	{ 0x015C, 0x015D },
+	{ 0x015E, 0x015F },
+	{ 0x0160, 0x0161 },
+	{ 0x0162, 0x0163 },
+	{ 0x0164, 0x0165 },
+	{ 0x0166, 0x0167 },
+	{ 0x0168, 0x0169 },
+	{ 0x016A, 0x016B },
+	{ 0x016C, 0x016D },
+	{ 0x016E, 0x016F },
+	{ 0x0170, 0x0171 },
+	{ 0x0172, 0x0173 },
+	{ 0x0174, 0x0175 },
+	{ 0x0176, 0x0177 },
+	{ 0x0178, 0x00FF },
+	{ 0x0179, 0x017A },
+	{ 0x017B, 0x017C },
+	{ 0x017D, 0x017E },
+	{ 0x0181, 0x0253 },
+	{ 0x0182, 0x0183 },
+	{ 0x0184, 0x0185 },
+	{ 0x0186, 0x0254 },
+	{ 0x0187, 0x0188 },
+	{ 0x018A, 0x0257 },
+	{ 0x018B, 0x018C },
+	{ 0x018E, 0x0258 },
+	{ 0x018F, 0x0259 },
+	{ 0x0190, 0x025B },
+	{ 0x0191, 0x0192 },
+	{ 0x0193, 0x0260 },
+	{ 0x0194, 0x0263 },
+	{ 0x0196, 0x0269 },
+	{ 0x0197, 0x0268 },
+	{ 0x0198, 0x0199 },
+	{ 0x019C, 0x026F },
+	{ 0x019D, 0x0272 },
+	{ 0x019F, 0x0275 },
+	{ 0x01A0, 0x01A1 },
+	{ 0x01A2, 0x01A3 },
+	{ 0x01A4, 0x01A5 },
+	{ 0x01A7, 0x01A8 },
+	{ 0x01A9, 0x0283 },
+	{ 0x01AC, 0x01AD },
+	{ 0x01AE, 0x0288 },
+	{ 0x01AF, 0x01B0 },
+	{ 0x01B1, 0x028A },
+	{ 0x01B2, 0x028B },
+	{ 0x01B3, 0x01B4 },
+	{ 0x01B5, 0x01B6 },
+	{ 0x01B7, 0x0292 },
+	{ 0x01B8, 0x01B9 },
+	{ 0x01BC, 0x01BD },
+	{ 0x01C4, 0x01C6 },
+	{ 0x01C7, 0x01C9 },
+	{ 0x01CA, 0x01CC },
+	{ 0x01CD, 0x01CE },
+	{ 0x01CF, 0x01D0 },
+	{ 0x01D1, 0x01D2 },
+	{ 0x01D3, 0x01D4 },
+	{ 0x01D5, 0x01D6 },
+	{ 0x01D7, 0x01D8 },
+	{ 0x01D9, 0x01DA },
+	{ 0x01DB, 0x01DC },
+	{ 0x01DE, 0x01DF },
+	{ 0x01E0, 0x01E1 },
+	{ 0x01E2, 0x01E3 },
+	{ 0x01E4, 0x01E5 },
+	{ 0x01E6, 0x01E7 },
+	{ 0x01E8, 0x01E9 },
+	{ 0x01EA, 0x01EB },
+	{ 0x01EC, 0x01ED },
+	{ 0x01EE, 0x01EF },
+	{ 0x01F1, 0x01F3 },
+	{ 0x01F4, 0x01F5 },
+	{ 0x01FA, 0x01FB },
+	{ 0x01FC, 0x01FD },
+	{ 0x01FE, 0x01FF },
+	{ 0x0200, 0x0201 },
+	{ 0x0202, 0x0203 },
+	{ 0x0204, 0x0205 },
+	{ 0x0206, 0x0207 },
+	{ 0x0208, 0x0209 },
+	{ 0x020A, 0x020B },
+	{ 0x020C, 0x020D },
+	{ 0x020E, 0x020F },
+	{ 0x0210, 0x0211 },
+	{ 0x0212, 0x0213 },
+	{ 0x0214, 0x0215 },
+	{ 0x0216, 0x0217 },
+	{ 0x0386, 0x03AC },
+	{ 0x0388, 0x03AD },
+	{ 0x0389, 0x03AE },
+	{ 0x038A, 0x03AF },
+	{ 0x038C, 0x03CC },
+	{ 0x038E, 0x03CD },
+	{ 0x038F, 0x03CE },
+	{ 0x0391, 0x03B1 },
+	{ 0x0392, 0x03B2 },
+	{ 0x0393, 0x03B3 },
+	{ 0x0394, 0x03B4 },
+	{ 0x0395, 0x03B5 },
+	{ 0x0396, 0x03B6 },
+	{ 0x0397, 0x03B7 },
+	{ 0x0398, 0x03B8 },
+	{ 0x0399, 0x03B9 },
+	{ 0x039A, 0x03BA },
+	{ 0x039B, 0x03BB },
+	{ 0x039C, 0x03BC },
+	{ 0x039D, 0x03BD },
+	{ 0x039E, 0x03BE },
+	{ 0x039F, 0x03BF },
+	{ 0x03A0, 0x03C0 },
+	{ 0x03A1, 0x03C1 },
+	{ 0x03A3, 0x03C3 },
+	{ 0x03A4, 0x03C4 },
+	{ 0x03A5, 0x03C5 },
+	{ 0x03A6, 0x03C6 },
+	{ 0x03A7, 0x03C7 },
+	{ 0x03A8, 0x03C8 },
+	{ 0x03A9, 0x03C9 },
+	{ 0x03AA, 0x03CA },
+	{ 0x03AB, 0x03CB },
+	{ 0x03E2, 0x03E3 },
+	{ 0x03E4, 0x03E5 },
+	{ 0x03E6, 0x03E7 },
+	{ 0x03E8, 0x03E9 },
+	{ 0x03EA, 0x03EB },
+	{ 0x03EC, 0x03ED },
+	{ 0x03EE, 0x03EF },
+	{ 0x0401, 0x0451 },
+	{ 0x0402, 0x0452 },
+	{ 0x0403, 0x0453 },
+	{ 0x0404, 0x0454 },
+	{ 0x0405, 0x0455 },
+	{ 0x0406, 0x0456 },
+	{ 0x0407, 0x0457 },
+	{ 0x0408, 0x0458 },
+	{ 0x0409, 0x0459 },
+	{ 0x040A, 0x045A },
+	{ 0x040B, 0x045B },
+	{ 0x040C, 0x045C },
+	{ 0x040E, 0x045E },
+	{ 0x040F, 0x045F },
+	{ 0x0410, 0x0430 },
+	{ 0x0411, 0x0431 },
+	{ 0x0412, 0x0432 },
+	{ 0x0413, 0x0433 },
+	{ 0x0414, 0x0434 },
+	{ 0x0415, 0x0435 },
+	{ 0x0416, 0x0436 },
+	{ 0x0417, 0x0437 },
+	{ 0x0418, 0x0438 },
+	{ 0x0419, 0x0439 },
+	{ 0x041A, 0x043A },
+	{ 0x041B, 0x043B },
+	{ 0x041C, 0x043C },
+	{ 0x041D, 0x043D },
+	{ 0x041E, 0x043E },
+	{ 0x041F, 0x043F },
+	{ 0x0420, 0x0440 },
+	{ 0x0421, 0x0441 },
+	{ 0x0422, 0x0442 },
+	{ 0x0423, 0x0443 },
+	{ 0x0424, 0x0444 },
+	{ 0x0425, 0x0445 },
+	{ 0x0426, 0x0446 },
+	{ 0x0427, 0x0447 },
+	{ 0x0428, 0x0448 },
+	{ 0x0429, 0x0449 },
+	{ 0x042A, 0x044A },
+	{ 0x042B, 0x044B },
+	{ 0x042C, 0x044C },
+	{ 0x042D, 0x044D },
+	{ 0x042E, 0x044E },
+	{ 0x042F, 0x044F },
+	{ 0x0460, 0x0461 },
+	{ 0x0462, 0x0463 },
+	{ 0x0464, 0x0465 },
+	{ 0x0466, 0x0467 },
+	{ 0x0468, 0x0469 },
+	{ 0x046A, 0x046B },
+	{ 0x046C, 0x046D },
+	{ 0x046E, 0x046F },
+	{ 0x0470, 0x0471 },
+	{ 0x0472, 0x0473 },
+	{ 0x0474, 0x0475 },
+	{ 0x0476, 0x0477 },
+	{ 0x0478, 0x0479 },
+	{ 0x047A, 0x047B },
+	{ 0x047C, 0x047D },
+	{ 0x047E, 0x047F },
+	{ 0x0480, 0x0481 },
+	{ 0x0490, 0x0491 },
+	{ 0x0492, 0x0493 },
+	{ 0x0494, 0x0495 },
+	{ 0x0496, 0x0497 },
+	{ 0x0498, 0x0499 },
+	{ 0x049A, 0x049B },
+	{ 0x049C, 0x049D },
+	{ 0x049E, 0x049F },
+	{ 0x04A0, 0x04A1 },
+	{ 0x04A2, 0x04A3 },
+	{ 0x04A4, 0x04A5 },
+	{ 0x04A6, 0x04A7 },
+	{ 0x04A8, 0x04A9 },
+	{ 0x04AA, 0x04AB },
+	{ 0x04AC, 0x04AD },
+	{ 0x04AE, 0x04AF },
+	{ 0x04B0, 0x04B1 },
+	{ 0x04B2, 0x04B3 },
+	{ 0x04B4, 0x04B5 },
+	{ 0x04B6, 0x04B7 },
+	{ 0x04B8, 0x04B9 },
+	{ 0x04BA, 0x04BB },
+	{ 0x04BC, 0x04BD },
+	{ 0x04BE, 0x04BF },
+	{ 0x04C1, 0x04C2 },
+	{ 0x04C3, 0x04C4 },
+	{ 0x04C7, 0x04C8 },
+	{ 0x04CB, 0x04CC },
+	{ 0x04D0, 0x04D1 },
+	{ 0x04D2, 0x04D3 },
+	{ 0x04D4, 0x04D5 },
+	{ 0x04D6, 0x04D7 },
+	{ 0x04D8, 0x04D9 },
+	{ 0x04DA, 0x04DB },
+	{ 0x04DC, 0x04DD },
+	{ 0x04DE, 0x04DF },
+	{ 0x04E0, 0x04E1 },
+	{ 0x04E2, 0x04E3 },
+	{ 0x04E4, 0x04E5 },
+	{ 0x04E6, 0x04E7 },
+	{ 0x04E8, 0x04E9 },
+	{ 0x04EA, 0x04EB },
+	{ 0x04EE, 0x04EF },
+	{ 0x04F0, 0x04F1 },
+	{ 0x04F2, 0x04F3 },
+	{ 0x04F4, 0x04F5 },
+	{ 0x04F8, 0x04F9 },
+	{ 0x0531, 0x0561 },
+	{ 0x0532, 0x0562 },
+	{ 0x0533, 0x0563 },
+	{ 0x0534, 0x0564 },
+	{ 0x0535, 0x0565 },
+	{ 0x0536, 0x0566 },
+	{ 0x0537, 0x0567 },
+	{ 0x0538, 0x0568 },
+	{ 0x0539, 0x0569 },
+	{ 0x053A, 0x056A },
+	{ 0x053B, 0x056B },
+	{ 0x053C, 0x056C },
+	{ 0x053D, 0x056D },
+	{ 0x053E, 0x056E },
+	{ 0x053F, 0x056F },
+	{ 0x0540, 0x0570 },
+	{ 0x0541, 0x0571 },
+	{ 0x0542, 0x0572 },
+	{ 0x0543, 0x0573 },
+	{ 0x0544, 0x0574 },
+	{ 0x0545, 0x0575 },
+	{ 0x0546, 0x0576 },
+	{ 0x0547, 0x0577 },
+	{ 0x0548, 0x0578 },
+	{ 0x0549, 0x0579 },
+	{ 0x054A, 0x057A },
+	{ 0x054B, 0x057B },
+	{ 0x054C, 0x057C },
+	{ 0x054D, 0x057D },
+	{ 0x054E, 0x057E },
+	{ 0x054F, 0x057F },
+	{ 0x0550, 0x0580 },
+	{ 0x0551, 0x0581 },
+	{ 0x0552, 0x0582 },
+	{ 0x0553, 0x0583 },
+	{ 0x0554, 0x0584 },
+	{ 0x0555, 0x0585 },
+	{ 0x0556, 0x0586 },
+	{ 0x10A0, 0x10D0 },
+	{ 0x10A1, 0x10D1 },
+	{ 0x10A2, 0x10D2 },
+	{ 0x10A3, 0x10D3 },
+	{ 0x10A4, 0x10D4 },
+	{ 0x10A5, 0x10D5 },
+	{ 0x10A6, 0x10D6 },
+	{ 0x10A7, 0x10D7 },
+	{ 0x10A8, 0x10D8 },
+	{ 0x10A9, 0x10D9 },
+	{ 0x10AA, 0x10DA },
+	{ 0x10AB, 0x10DB },
+	{ 0x10AC, 0x10DC },
+	{ 0x10AD, 0x10DD },
+	{ 0x10AE, 0x10DE },
+	{ 0x10AF, 0x10DF },
+	{ 0x10B0, 0x10E0 },
+	{ 0x10B1, 0x10E1 },
+	{ 0x10B2, 0x10E2 },
+	{ 0x10B3, 0x10E3 },
+	{ 0x10B4, 0x10E4 },
+	{ 0x10B5, 0x10E5 },
+	{ 0x10B6, 0x10E6 },
+	{ 0x10B7, 0x10E7 },
+	{ 0x10B8, 0x10E8 },
+	{ 0x10B9, 0x10E9 },
+	{ 0x10BA, 0x10EA },
+	{ 0x10BB, 0x10EB },
+	{ 0x10BC, 0x10EC },
+	{ 0x10BD, 0x10ED },
+	{ 0x10BE, 0x10EE },
+	{ 0x10BF, 0x10EF },
+	{ 0x10C0, 0x10F0 },
+	{ 0x10C1, 0x10F1 },
+	{ 0x10C2, 0x10F2 },
+	{ 0x10C3, 0x10F3 },
+	{ 0x10C4, 0x10F4 },
+	{ 0x10C5, 0x10F5 },
+	{ 0x1E00, 0x1E01 },
+	{ 0x1E02, 0x1E03 },
+	{ 0x1E04, 0x1E05 },
+	{ 0x1E06, 0x1E07 },
+	{ 0x1E08, 0x1E09 },
+	{ 0x1E0A, 0x1E0B },
+	{ 0x1E0C, 0x1E0D },
+	{ 0x1E0E, 0x1E0F },
+	{ 0x1E10, 0x1E11 },
+	{ 0x1E12, 0x1E13 },
+	{ 0x1E14, 0x1E15 },
+	{ 0x1E16, 0x1E17 },
+	{ 0x1E18, 0x1E19 },
+	{ 0x1E1A, 0x1E1B },
+	{ 0x1E1C, 0x1E1D },
+	{ 0x1E1E, 0x1E1F },
+	{ 0x1E20, 0x1E21 },
+	{ 0x1E22, 0x1E23 },
+	{ 0x1E24, 0x1E25 },
+	{ 0x1E26, 0x1E27 },
+	{ 0x1E28, 0x1E29 },
+	{ 0x1E2A, 0x1E2B },
+	{ 0x1E2C, 0x1E2D },
+	{ 0x1E2E, 0x1E2F },
+	{ 0x1E30, 0x1E31 },
+	{ 0x1E32, 0x1E33 },
+	{ 0x1E34, 0x1E35 },
+	{ 0x1E36, 0x1E37 },
+	{ 0x1E38, 0x1E39 },
+	{ 0x1E3A, 0x1E3B },
+	{ 0x1E3C, 0x1E3D },
+	{ 0x1E3E, 0x1E3F },
+	{ 0x1E40, 0x1E41 },
+	{ 0x1E42, 0x1E43 },
+	{ 0x1E44, 0x1E45 },
+	{ 0x1E46, 0x1E47 },
+	{ 0x1E48, 0x1E49 },
+	{ 0x1E4A, 0x1E4B },
+	{ 0x1E4C, 0x1E4D },
+	{ 0x1E4E, 0x1E4F },
+	{ 0x1E50, 0x1E51 },
+	{ 0x1E52, 0x1E53 },
+	{ 0x1E54, 0x1E55 },
+	{ 0x1E56, 0x1E57 },
+	{ 0x1E58, 0x1E59 },
+	{ 0x1E5A, 0x1E5B },
+	{ 0x1E5C, 0x1E5D },
+	{ 0x1E5E, 0x1E5F },
+	{ 0x1E60, 0x1E61 },
+	{ 0x1E62, 0x1E63 },
+	{ 0x1E64, 0x1E65 },
+	{ 0x1E66, 0x1E67 },
+	{ 0x1E68, 0x1E69 },
+	{ 0x1E6A, 0x1E6B },
+	{ 0x1E6C, 0x1E6D },
+	{ 0x1E6E, 0x1E6F },
+	{ 0x1E70, 0x1E71 },
+	{ 0x1E72, 0x1E73 },
+	{ 0x1E74, 0x1E75 },
+	{ 0x1E76, 0x1E77 },
+	{ 0x1E78, 0x1E79 },
+	{ 0x1E7A, 0x1E7B },
+	{ 0x1E7C, 0x1E7D },
+	{ 0x1E7E, 0x1E7F },
+	{ 0x1E80, 0x1E81 },
+	{ 0x1E82, 0x1E83 },
+	{ 0x1E84, 0x1E85 },
+	{ 0x1E86, 0x1E87 },
+	{ 0x1E88, 0x1E89 },
+	{ 0x1E8A, 0x1E8B },
+	{ 0x1E8C, 0x1E8D },
+	{ 0x1E8E, 0x1E8F },
+	{ 0x1E90, 0x1E91 },
+	{ 0x1E92, 0x1E93 },
+	{ 0x1E94, 0x1E95 },
+	{ 0x1EA0, 0x1EA1 },
+	{ 0x1EA2, 0x1EA3 },
+	{ 0x1EA4, 0x1EA5 },
+	{ 0x1EA6, 0x1EA7 },
+	{ 0x1EA8, 0x1EA9 },
+	{ 0x1EAA, 0x1EAB },
+	{ 0x1EAC, 0x1EAD },
+	{ 0x1EAE, 0x1EAF },
+	{ 0x1EB0, 0x1EB1 },
+	{ 0x1EB2, 0x1EB3 },
+	{ 0x1EB4, 0x1EB5 },
+	{ 0x1EB6, 0x1EB7 },
+	{ 0x1EB8, 0x1EB9 },
+	{ 0x1EBA, 0x1EBB },
+	{ 0x1EBC, 0x1EBD },
+	{ 0x1EBE, 0x1EBF },
+	{ 0x1EC0, 0x1EC1 },
+	{ 0x1EC2, 0x1EC3 },
+	{ 0x1EC4, 0x1EC5 },
+	{ 0x1EC6, 0x1EC7 },
+	{ 0x1EC8, 0x1EC9 },
+	{ 0x1ECA, 0x1ECB },
+	{ 0x1ECC, 0x1ECD },
+	{ 0x1ECE, 0x1ECF },
+	{ 0x1ED0, 0x1ED1 },
+	{ 0x1ED2, 0x1ED3 },
+	{ 0x1ED4, 0x1ED5 },
+	{ 0x1ED6, 0x1ED7 },
+	{ 0x1ED8, 0x1ED9 },
+	{ 0x1EDA, 0x1EDB },
+	{ 0x1EDC, 0x1EDD },
+	{ 0x1EDE, 0x1EDF },
+	{ 0x1EE0, 0x1EE1 },
+	{ 0x1EE2, 0x1EE3 },
+	{ 0x1EE4, 0x1EE5 },
+	{ 0x1EE6, 0x1EE7 },
+	{ 0x1EE8, 0x1EE9 },
+	{ 0x1EEA, 0x1EEB },
+	{ 0x1EEC, 0x1EED },
+	{ 0x1EEE, 0x1EEF },
+	{ 0x1EF0, 0x1EF1 },
+	{ 0x1EF2, 0x1EF3 },
+	{ 0x1EF4, 0x1EF5 },
+	{ 0x1EF6, 0x1EF7 },
+	{ 0x1EF8, 0x1EF9 },
+	{ 0x1F08, 0x1F00 },
+	{ 0x1F09, 0x1F01 },
+	{ 0x1F0A, 0x1F02 },
+	{ 0x1F0B, 0x1F03 },
+	{ 0x1F0C, 0x1F04 },
+	{ 0x1F0D, 0x1F05 },
+	{ 0x1F0E, 0x1F06 },
+	{ 0x1F0F, 0x1F07 },
+	{ 0x1F18, 0x1F10 },
+	{ 0x1F19, 0x1F11 },
+	{ 0x1F1A, 0x1F12 },
+	{ 0x1F1B, 0x1F13 },
+	{ 0x1F1C, 0x1F14 },
+	{ 0x1F1D, 0x1F15 },
+	{ 0x1F28, 0x1F20 },
+	{ 0x1F29, 0x1F21 },
+	{ 0x1F2A, 0x1F22 },
+	{ 0x1F2B, 0x1F23 },
+	{ 0x1F2C, 0x1F24 },
+	{ 0x1F2D, 0x1F25 },
+	{ 0x1F2E, 0x1F26 },
+	{ 0x1F2F, 0x1F27 },
+	{ 0x1F38, 0x1F30 },
+	{ 0x1F39, 0x1F31 },
+	{ 0x1F3A, 0x1F32 },
+	{ 0x1F3B, 0x1F33 },
+	{ 0x1F3C, 0x1F34 },
+	{ 0x1F3D, 0x1F35 },
+	{ 0x1F3E, 0x1F36 },
+	{ 0x1F3F, 0x1F37 },
+	{ 0x1F48, 0x1F40 },
+	{ 0x1F49, 0x1F41 },
+	{ 0x1F4A, 0x1F42 },
+	{ 0x1F4B, 0x1F43 },
+	{ 0x1F4C, 0x1F44 },
+	{ 0x1F4D, 0x1F45 },
+	{ 0x1F59, 0x1F51 },
+	{ 0x1F5B, 0x1F53 },
+	{ 0x1F5D, 0x1F55 },
+	{ 0x1F5F, 0x1F57 },
+	{ 0x1F68, 0x1F60 },
+	{ 0x1F69, 0x1F61 },
+	{ 0x1F6A, 0x1F62 },
+	{ 0x1F6B, 0x1F63 },
+	{ 0x1F6C, 0x1F64 },
+	{ 0x1F6D, 0x1F65 },
+	{ 0x1F6E, 0x1F66 },
+	{ 0x1F6F, 0x1F67 },
+	{ 0x1F88, 0x1F80 },
+	{ 0x1F89, 0x1F81 },
+	{ 0x1F8A, 0x1F82 },
+	{ 0x1F8B, 0x1F83 },
+	{ 0x1F8C, 0x1F84 },
+	{ 0x1F8D, 0x1F85 },
+	{ 0x1F8E, 0x1F86 },
+	{ 0x1F8F, 0x1F87 },
+	{ 0x1F98, 0x1F90 },
+	{ 0x1F99, 0x1F91 },
+	{ 0x1F9A, 0x1F92 },
+	{ 0x1F9B, 0x1F93 },
+	{ 0x1F9C, 0x1F94 },
+	{ 0x1F9D, 0x1F95 },
+	{ 0x1F9E, 0x1F96 },
+	{ 0x1F9F, 0x1F97 },
+	{ 0x1FA8, 0x1FA0 },
+	{ 0x1FA9, 0x1FA1 },
+	{ 0x1FAA, 0x1FA2 },
+	{ 0x1FAB, 0x1FA3 },
+	{ 0x1FAC, 0x1FA4 },
+	{ 0x1FAD, 0x1FA5 },
+	{ 0x1FAE, 0x1FA6 },
+	{ 0x1FAF, 0x1FA7 },
+	{ 0x1FB8, 0x1FB0 },
+	{ 0x1FB9, 0x1FB1 },
+	{ 0x1FD8, 0x1FD0 },
+	{ 0x1FD9, 0x1FD1 },
+	{ 0x1FE8, 0x1FE0 },
+	{ 0x1FE9, 0x1FE1 },
+	{ 0x24B6, 0x24D0 },
+	{ 0x24B7, 0x24D1 },
+	{ 0x24B8, 0x24D2 },
+	{ 0x24B9, 0x24D3 },
+	{ 0x24BA, 0x24D4 },
+	{ 0x24BB, 0x24D5 },
+	{ 0x24BC, 0x24D6 },
+	{ 0x24BD, 0x24D7 },
+	{ 0x24BE, 0x24D8 },
+	{ 0x24BF, 0x24D9 },
+	{ 0x24C0, 0x24DA },
+	{ 0x24C1, 0x24DB },
+	{ 0x24C2, 0x24DC },
+	{ 0x24C3, 0x24DD },
+	{ 0x24C4, 0x24DE },
+	{ 0x24C5, 0x24DF },
+	{ 0x24C6, 0x24E0 },
+	{ 0x24C7, 0x24E1 },
+	{ 0x24C8, 0x24E2 },
+	{ 0x24C9, 0x24E3 },
+	{ 0x24CA, 0x24E4 },
+	{ 0x24CB, 0x24E5 },
+	{ 0x24CC, 0x24E6 },
+	{ 0x24CD, 0x24E7 },
+	{ 0x24CE, 0x24E8 },
+	{ 0x24CF, 0x24E9 },
+	{ 0xFF21, 0xFF41 },
+	{ 0xFF22, 0xFF42 },
+	{ 0xFF23, 0xFF43 },
+	{ 0xFF24, 0xFF44 },
+	{ 0xFF25, 0xFF45 },
+	{ 0xFF26, 0xFF46 },
+	{ 0xFF27, 0xFF47 },
+	{ 0xFF28, 0xFF48 },
+	{ 0xFF29, 0xFF49 },
+	{ 0xFF2A, 0xFF4A },
+	{ 0xFF2B, 0xFF4B },
+	{ 0xFF2C, 0xFF4C },
+	{ 0xFF2D, 0xFF4D },
+	{ 0xFF2E, 0xFF4E },
+	{ 0xFF2F, 0xFF4F },
+	{ 0xFF30, 0xFF50 },
+	{ 0xFF31, 0xFF51 },
+	{ 0xFF32, 0xFF52 },
+	{ 0xFF33, 0xFF53 },
+	{ 0xFF34, 0xFF54 },
+	{ 0xFF35, 0xFF55 },
+	{ 0xFF36, 0xFF56 },
+	{ 0xFF37, 0xFF57 },
+	{ 0xFF38, 0xFF58 },
+	{ 0xFF39, 0xFF59 },
+	{ 0xFF3A, 0xFF5A },
 };
 
 static int _find_upper(int ch) {
diff --git a/core/undo_redo.cpp b/core/undo_redo.cpp
index e13164d50f..69581e4115 100644
--- a/core/undo_redo.cpp
+++ b/core/undo_redo.cpp
@@ -90,7 +90,7 @@ void UndoRedo::create_action(const String &p_name, MergeMode p_mode) {
 			actions.write[actions.size() - 1].last_tick = ticks;
 
 			merge_mode = p_mode;
-
+			merging = true;
 		} else {
 
 			Action new_action;
@@ -250,6 +250,11 @@ void UndoRedo::commit_action() {
 	if (action_level > 0)
 		return; //still nested
 
+	if (merging) {
+		version--;
+		merging = false;
+	}
+
 	commiting++;
 	redo(); // perform action
 	commiting--;
@@ -396,6 +401,7 @@ UndoRedo::UndoRedo() {
 	action_level = 0;
 	current_action = -1;
 	merge_mode = MERGE_DISABLE;
+	merging = false;
 	callback = NULL;
 	callback_ud = NULL;
 
diff --git a/core/undo_redo.h b/core/undo_redo.h
index b626149ce6..6293e77acc 100644
--- a/core/undo_redo.h
+++ b/core/undo_redo.h
@@ -80,6 +80,7 @@ private:
 	int current_action;
 	int action_level;
 	MergeMode merge_mode;
+	bool merging;
 	uint64_t version;
 
 	void _pop_history_tail();
diff --git a/core/ustring.cpp b/core/ustring.cpp
index ff8fcaaaaf..78feddb229 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -123,6 +123,31 @@ const char *CharString::get_data() const {
 		return "";
 }
 
+CharString &CharString::operator=(const char *p_cstr) {
+
+	copy_from(p_cstr);
+	return *this;
+}
+
+void CharString::copy_from(const char *p_cstr) {
+
+	if (!p_cstr) {
+		resize(0);
+		return;
+	}
+
+	size_t len = strlen(p_cstr);
+
+	if (len == 0) {
+		resize(0);
+		return;
+	}
+
+	resize(len + 1); // include terminating null char
+
+	strcpy(ptrw(), p_cstr);
+}
+
 void String::copy_from(const char *p_cstr) {
 
 	if (!p_cstr) {
@@ -3748,6 +3773,24 @@ bool String::is_valid_html_color() const {
 	return Color::html_is_valid(*this);
 }
 
+bool String::is_valid_filename() const {
+
+	String stripped = strip_edges();
+	if (*this != stripped) {
+		return false;
+	}
+
+	if (stripped == String()) {
+		return false;
+	}
+
+	if (find(":") != -1 || find("/") != -1 || find("\\") != -1 || find("?") != -1 || find("*") != -1 || find("\"") != -1 || find("|") != -1 || find("%") != -1 || find("<") != -1 || find(">") != -1) {
+		return false;
+	} else {
+		return true;
+	}
+}
+
 bool String::is_valid_ip_address() const {
 
 	if (find(":") >= 0) {
diff --git a/core/ustring.h b/core/ustring.h
index cb3d87378a..e2e62874d6 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -97,12 +97,21 @@ public:
 
 	_FORCE_INLINE_ CharString() {}
 	_FORCE_INLINE_ CharString(const CharString &p_str) { _cowdata._ref(p_str._cowdata); }
+	_FORCE_INLINE_ CharString operator=(const CharString &p_str) {
+		_cowdata._ref(p_str._cowdata);
+		return *this;
+	}
+	_FORCE_INLINE_ CharString(const char *p_cstr) { copy_from(p_cstr); }
 
+	CharString &operator=(const char *p_cstr);
 	bool operator<(const CharString &p_right) const;
 	CharString &operator+=(char p_char);
 	int length() const { return size() ? size() - 1 : 0; }
 	const char *get_data() const;
 	operator const char *() const { return get_data(); };
+
+protected:
+	void copy_from(const char *p_cstr);
 };
 
 typedef wchar_t CharType;
@@ -331,6 +340,7 @@ public:
 	bool is_valid_hex_number(bool p_with_prefix) const;
 	bool is_valid_html_color() const;
 	bool is_valid_ip_address() const;
+	bool is_valid_filename() const;
 
 	/**
 	 * The constructors must not depend on other overloads
@@ -339,6 +349,10 @@ public:
 
 	_FORCE_INLINE_ String() {}
 	_FORCE_INLINE_ String(const String &p_str) { _cowdata._ref(p_str._cowdata); }
+	String operator=(const String &p_str) {
+		_cowdata._ref(p_str._cowdata);
+		return *this;
+	}
 
 	String(const char *p_str);
 	String(const CharType *p_str, int p_clip_to_len = -1);
@@ -398,11 +412,18 @@ _FORCE_INLINE_ bool is_str_less(const L *l_ptr, const R *r_ptr) {
 //tool translate
 #ifdef TOOLS_ENABLED
 
+//gets parsed
 String TTR(const String &);
+//use for c strings
+#define TTRC(m_value) m_value
+//use to avoid parsing (for use later with C strings)
+#define TTRGET(m_value) TTR(m_value)
 
 #else
 
 #define TTR(m_val) (String())
+#define TTRCDEF(m_value) (m_value)
+#define TTRC(m_value) (m_value)
 
 #endif
 
diff --git a/core/variant.cpp b/core/variant.cpp
index 2ee2e8e293..1bc3cff505 100644
--- a/core/variant.cpp
+++ b/core/variant.cpp
@@ -179,7 +179,8 @@ String Variant::get_type_name(Variant::Type p_type) {
 			return "PoolColorArray";
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return "";
@@ -403,7 +404,8 @@ bool Variant::can_convert(Variant::Type p_type_from, Variant::Type p_type_to) {
 			valid_types = valid;
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (valid_types) {
@@ -649,7 +651,8 @@ bool Variant::can_convert_strict(Variant::Type p_type_from, Variant::Type p_type
 			valid_types = valid;
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (valid_types) {
@@ -841,7 +844,8 @@ bool Variant::is_zero() const {
 			return reinterpret_cast<const PoolVector<Color> *>(_data._mem)->size() == 0;
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return false;
@@ -896,7 +900,9 @@ bool Variant::is_one() const {
 
 		} break;
 
-		default: { return !is_zero(); }
+		default: {
+			return !is_zero();
+		}
 	}
 
 	return false;
@@ -1039,7 +1045,8 @@ void Variant::reference(const Variant &p_variant) {
 			memnew_placement(_data._mem, PoolVector<Color>(*reinterpret_cast<const PoolVector<Color> *>(p_variant._data._mem)));
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1143,7 +1150,8 @@ void Variant::clear() {
 
 			reinterpret_cast<PoolVector<Color> *>(_data._mem)->~PoolVector<Color>();
 		} break;
-		default: {} /* not needed */
+		default: {
+		} /* not needed */
 	}
 
 	type = NIL;
@@ -1407,7 +1415,12 @@ struct _VariantStrPair {
 };
 
 Variant::operator String() const {
+	List<const void *> stack;
 
+	return stringify(stack);
+}
+
+String Variant::stringify(List<const void *> &stack) const {
 	switch (type) {
 
 		case NIL: return "Null";
@@ -1459,6 +1472,12 @@ Variant::operator String() const {
 		case DICTIONARY: {
 
 			const Dictionary &d = *reinterpret_cast<const Dictionary *>(_data._mem);
+			if (stack.find(d.id())) {
+				return "{...}";
+			}
+
+			stack.push_back(d.id());
+
 			//const String *K=NULL;
 			String str("{");
 			List<Variant> keys;
@@ -1469,8 +1488,9 @@ Variant::operator String() const {
 			for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
 
 				_VariantStrPair sp;
-				sp.key = String(E->get());
-				sp.value = d[E->get()];
+				sp.key = E->get().stringify(stack);
+				sp.value = d[E->get()].stringify(stack);
+
 				pairs.push_back(sp);
 			}
 
@@ -1553,12 +1573,19 @@ Variant::operator String() const {
 		case ARRAY: {
 
 			Array arr = operator Array();
+			if (stack.find(arr.id())) {
+				return "[...]";
+			}
+			stack.push_back(arr.id());
+
 			String str("[");
 			for (int i = 0; i < arr.size(); i++) {
 				if (i)
 					str += ", ";
-				str += String(arr[i]);
-			};
+
+				str += arr[i].stringify(stack);
+			}
+
 			str += "]";
 			return str;
 
@@ -1823,7 +1850,9 @@ inline DA _convert_array_from_variant(const Variant &p_variant) {
 		case Variant::POOL_COLOR_ARRAY: {
 			return _convert_array<DA, PoolVector<Color> >(p_variant.operator PoolVector<Color>());
 		}
-		default: { return DA(); }
+		default: {
+			return DA();
+		}
 	}
 
 	return DA();
@@ -2642,7 +2671,8 @@ void Variant::operator=(const Variant &p_variant) {
 
 			*reinterpret_cast<PoolVector<Color> *>(_data._mem) = *reinterpret_cast<const PoolVector<Color> *>(p_variant._data._mem);
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -2919,7 +2949,8 @@ uint32_t Variant::hash() const {
 
 			return hash;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return 0;
@@ -3167,7 +3198,8 @@ bool Variant::is_shared() const {
 		case OBJECT: return true;
 		case ARRAY: return true;
 		case DICTIONARY: return true;
-		default: {}
+		default: {
+		}
 	}
 
 	return false;
@@ -3204,7 +3236,8 @@ Variant Variant::call(const StringName &p_method, VARIANT_ARG_DECLARE) {
 			String err = "Too many arguments for method '" + p_method + "'";
 			ERR_PRINT(err.utf8().get_data());
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return ret;
diff --git a/core/variant.h b/core/variant.h
index 9215d15bf0..5151262f27 100644
--- a/core/variant.h
+++ b/core/variant.h
@@ -401,6 +401,7 @@ public:
 
 	bool hash_compare(const Variant &p_variant) const;
 	bool booleanize() const;
+	String stringify(List<const void *> &stack) const;
 
 	void static_assign(const Variant &p_variant);
 	static void get_constructor_list(Variant::Type p_type, List<MethodInfo> *p_list);
diff --git a/core/variant_call.cpp b/core/variant_call.cpp
index 25a0f3957c..f9f73b4e51 100644
--- a/core/variant_call.cpp
+++ b/core/variant_call.cpp
@@ -36,6 +36,7 @@
 #include "core/object.h"
 #include "core/os/os.h"
 #include "core/script_language.h"
+#include "thirdparty/misc/sha256.h"
 
 typedef void (*VariantFunc)(Variant &r_ret, Variant &p_self, const Variant **p_args);
 typedef void (*VariantConstructFunc)(Variant &r_ret, const Variant **p_args);
@@ -294,6 +295,7 @@ struct _VariantCall {
 	VCALL_LOCALMEM1R(String, is_valid_hex_number);
 	VCALL_LOCALMEM0R(String, is_valid_html_color);
 	VCALL_LOCALMEM0R(String, is_valid_ip_address);
+	VCALL_LOCALMEM0R(String, is_valid_filename);
 	VCALL_LOCALMEM0R(String, to_int);
 	VCALL_LOCALMEM0R(String, to_float);
 	VCALL_LOCALMEM0R(String, hex_to_int);
@@ -341,6 +343,7 @@ struct _VariantCall {
 	VCALL_LOCALMEM1R(Vector2, project);
 	VCALL_LOCALMEM1R(Vector2, angle_to);
 	VCALL_LOCALMEM1R(Vector2, angle_to_point);
+	VCALL_LOCALMEM1R(Vector2, direction_to);
 	VCALL_LOCALMEM2R(Vector2, linear_interpolate);
 	VCALL_LOCALMEM2R(Vector2, slerp);
 	VCALL_LOCALMEM4R(Vector2, cubic_interpolate);
@@ -397,6 +400,7 @@ struct _VariantCall {
 	VCALL_LOCALMEM1R(Vector3, distance_squared_to);
 	VCALL_LOCALMEM1R(Vector3, project);
 	VCALL_LOCALMEM1R(Vector3, angle_to);
+	VCALL_LOCALMEM1R(Vector3, direction_to);
 	VCALL_LOCALMEM1R(Vector3, slide);
 	VCALL_LOCALMEM1R(Vector3, bounce);
 	VCALL_LOCALMEM1R(Vector3, reflect);
@@ -584,6 +588,19 @@ struct _VariantCall {
 		r_ret = decompressed;
 	}
 
+	static void _call_PoolByteArray_sha256_string(Variant &r_ret, Variant &p_self, const Variant **p_args) {
+		PoolByteArray *ba = reinterpret_cast<PoolByteArray *>(p_self._data._mem);
+		PoolByteArray::Read r = ba->read();
+		String s;
+		unsigned char hash[32];
+		sha256_context sha256;
+		sha256_init(&sha256);
+		sha256_hash(&sha256, (unsigned char *)r.ptr(), ba->size());
+		sha256_done(&sha256, hash);
+		s = String::hex_encode_buffer(hash, 32);
+		r_ret = s;
+	}
+
 	VCALL_LOCALMEM0R(PoolByteArray, size);
 	VCALL_LOCALMEM2(PoolByteArray, set);
 	VCALL_LOCALMEM1R(PoolByteArray, get);
@@ -773,6 +790,8 @@ struct _VariantCall {
 	VCALL_PTR0R(Basis, get_orthogonal_index);
 	VCALL_PTR0R(Basis, orthonormalized);
 	VCALL_PTR2R(Basis, slerp);
+	VCALL_PTR2R(Basis, is_equal_approx);
+	VCALL_PTR0R(Basis, get_rotation_quat);
 
 	VCALL_PTR0R(Transform, inverse);
 	VCALL_PTR0R(Transform, affine_inverse);
@@ -1538,6 +1557,7 @@ void register_variant_methods() {
 	ADDFUNC1R(STRING, BOOL, String, is_valid_hex_number, BOOL, "with_prefix", varray(false));
 	ADDFUNC0R(STRING, BOOL, String, is_valid_html_color, varray());
 	ADDFUNC0R(STRING, BOOL, String, is_valid_ip_address, varray());
+	ADDFUNC0R(STRING, BOOL, String, is_valid_filename, varray());
 	ADDFUNC0R(STRING, INT, String, to_int, varray());
 	ADDFUNC0R(STRING, REAL, String, to_float, varray());
 	ADDFUNC0R(STRING, INT, String, hex_to_int, varray());
@@ -1554,6 +1574,7 @@ void register_variant_methods() {
 	ADDFUNC0R(VECTOR2, REAL, Vector2, angle, varray());
 	ADDFUNC0R(VECTOR2, REAL, Vector2, length_squared, varray());
 	ADDFUNC0R(VECTOR2, BOOL, Vector2, is_normalized, varray());
+	ADDFUNC1R(VECTOR2, VECTOR2, Vector2, direction_to, VECTOR2, "b", varray());
 	ADDFUNC1R(VECTOR2, REAL, Vector2, distance_to, VECTOR2, "to", varray());
 	ADDFUNC1R(VECTOR2, REAL, Vector2, distance_squared_to, VECTOR2, "to", varray());
 	ADDFUNC1R(VECTOR2, VECTOR2, Vector2, project, VECTOR2, "b", varray());
@@ -1602,6 +1623,7 @@ void register_variant_methods() {
 	ADDFUNC2R(VECTOR3, VECTOR3, Vector3, linear_interpolate, VECTOR3, "b", REAL, "t", varray());
 	ADDFUNC2R(VECTOR3, VECTOR3, Vector3, slerp, VECTOR3, "b", REAL, "t", varray());
 	ADDFUNC4R(VECTOR3, VECTOR3, Vector3, cubic_interpolate, VECTOR3, "b", VECTOR3, "pre_a", VECTOR3, "post_b", REAL, "t", varray());
+	ADDFUNC1R(VECTOR3, VECTOR3, Vector3, direction_to, VECTOR3, "b", varray());
 	ADDFUNC1R(VECTOR3, REAL, Vector3, dot, VECTOR3, "b", varray());
 	ADDFUNC1R(VECTOR3, VECTOR3, Vector3, cross, VECTOR3, "b", varray());
 	ADDFUNC1R(VECTOR3, BASIS, Vector3, outer, VECTOR3, "b", varray());
@@ -1725,6 +1747,7 @@ void register_variant_methods() {
 
 	ADDFUNC0R(POOL_BYTE_ARRAY, STRING, PoolByteArray, get_string_from_ascii, varray());
 	ADDFUNC0R(POOL_BYTE_ARRAY, STRING, PoolByteArray, get_string_from_utf8, varray());
+	ADDFUNC0R(POOL_BYTE_ARRAY, STRING, PoolByteArray, sha256_string, varray());
 	ADDFUNC1R(POOL_BYTE_ARRAY, POOL_BYTE_ARRAY, PoolByteArray, compress, INT, "compression_mode", varray(0));
 	ADDFUNC2R(POOL_BYTE_ARRAY, POOL_BYTE_ARRAY, PoolByteArray, decompress, INT, "buffer_size", INT, "compression_mode", varray(0));
 
@@ -1842,6 +1865,8 @@ void register_variant_methods() {
 	ADDFUNC1R(BASIS, VECTOR3, Basis, xform_inv, VECTOR3, "v", varray());
 	ADDFUNC0R(BASIS, INT, Basis, get_orthogonal_index, varray());
 	ADDFUNC2R(BASIS, BASIS, Basis, slerp, BASIS, "b", REAL, "t", varray());
+	ADDFUNC2R(BASIS, BOOL, Basis, is_equal_approx, BASIS, "b", REAL, "epsilon", varray(CMP_EPSILON));
+	ADDFUNC0R(BASIS, QUAT, Basis, get_rotation_quat, varray());
 
 	ADDFUNC0R(TRANSFORM, TRANSFORM, Transform, inverse, varray());
 	ADDFUNC0R(TRANSFORM, TRANSFORM, Transform, affine_inverse, varray());
@@ -1923,9 +1948,9 @@ void register_variant_methods() {
 	_VariantCall::add_variant_constant(Variant::TRANSFORM, "IDENTITY", identity_transform);
 	transform_x.set(-1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0);
 	_VariantCall::add_variant_constant(Variant::TRANSFORM, "FLIP_X", transform_x);
-	transform_x.set(1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0);
+	transform_y.set(1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0);
 	_VariantCall::add_variant_constant(Variant::TRANSFORM, "FLIP_Y", transform_y);
-	transform_x.set(1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0);
+	transform_z.set(1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0);
 	_VariantCall::add_variant_constant(Variant::TRANSFORM, "FLIP_Z", transform_z);
 
 	_VariantCall::add_variant_constant(Variant::PLANE, "PLANE_YZ", Plane(Vector3(1, 0, 0), 0));
diff --git a/core/variant_op.cpp b/core/variant_op.cpp
index b40b6ce4a6..f3c9bcaa7e 100644
--- a/core/variant_op.cpp
+++ b/core/variant_op.cpp
@@ -2781,7 +2781,8 @@ bool Variant::in(const Variant &p_index, bool *r_valid) const {
 				return false;
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (r_valid)
@@ -2912,7 +2913,8 @@ void Variant::get_property_list(List<PropertyInfo> *p_list) const {
 
 			//nothing
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -3251,7 +3253,8 @@ bool Variant::iter_next(Variant &r_iter, bool &valid) const {
 			r_iter = idx;
 			return true;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	valid = false;
@@ -3408,7 +3411,8 @@ Variant Variant::iter_get(const Variant &r_iter, bool &r_valid) const {
 #endif
 			return arr->get(idx);
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	r_valid = false;
diff --git a/core/variant_parser.cpp b/core/variant_parser.cpp
index 0056fc75b6..d7371b0434 100644
--- a/core/variant_parser.cpp
+++ b/core/variant_parser.cpp
@@ -1542,6 +1542,9 @@ Error VariantParser::parse_tag_assign_eof(Stream *p_stream, int &line, String &r
 			} else if (c != '=') {
 				what += String::chr(c);
 			} else {
+				if (p_stream->is_utf8()) {
+					what.parse_utf8(what.ascii(true).get_data());
+				}
 				r_assign = what;
 				Token token;
 				get_token(p_stream, token, line, r_err_str);
@@ -1948,7 +1951,8 @@ Error VariantWriter::write(const Variant &p_variant, StoreStringFunc p_store_str
 			p_store_string_func(p_store_string_ud, " )");
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return OK;
diff --git a/core/vmap.h b/core/vmap.h
index f46ed70a0f..fde9723d71 100644
--- a/core/vmap.h
+++ b/core/vmap.h
@@ -65,7 +65,7 @@ private:
 		const Pair *a = _cowdata.ptr();
 		int middle = 0;
 
-#if DEBUG_ENABLED
+#ifdef DEBUG_ENABLED
 		if (low > high)
 			ERR_PRINT("low > high, this may be a bug");
 #endif
diff --git a/core/vset.h b/core/vset.h
index 678ec507ba..5f087a5a03 100644
--- a/core/vset.h
+++ b/core/vset.h
@@ -50,7 +50,7 @@ class VSet {
 		const T *a = &_data[0];
 		int middle = 0;
 
-#if DEBUG_ENABLED
+#ifdef DEBUG_ENABLED
 		if (low > high)
 			ERR_PRINT("low > high, this may be a bug");
 #endif
diff --git a/doc/classes/@GDScript.xml b/doc/classes/@GDScript.xml
index 0a430fea4d..2f7f05b2e4 100644
--- a/doc/classes/@GDScript.xml
+++ b/doc/classes/@GDScript.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="@GDScript" category="Core" version="3.1">
+<class name="@GDScript" category="Core" version="3.2">
 	<brief_description>
 		Built-in GDScript functions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Color8">
 			<return type="Color">
@@ -94,7 +92,7 @@
 			<argument index="0" name="condition" type="bool">
 			</argument>
 			<description>
-				Assert that the [code]condition[/code] is true. If the [code]condition[/code] is false a fatal error is generated and the program is halted. Useful for debugging to make sure a value is always true.
+				Assert that the [code]condition[/code] is [code]true[/code] . If the [code]condition[/code] is [code]false[/code] a fatal error is generated and the program is halted. Useful for debugging to make sure a value is always [code]true[/code].
 				[codeblock]
 				# Speed should always be between 0 and 20
 				speed = -10
@@ -136,8 +134,11 @@
 			</return>
 			<argument index="0" name="bytes" type="PoolByteArray">
 			</argument>
+			<argument index="1" name="allow_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Decodes a byte array back to a value.
+				Decodes a byte array back to a value. When [code]allow_objects[/code] is [code]true[/code] decoding objects is allowed.
+				[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
 			</description>
 		</method>
 		<method name="cartesian2polar">
@@ -263,11 +264,7 @@
 			<argument index="0" name="step" type="float">
 			</argument>
 			<description>
-				Returns the position of the first non-zero digit, after the decimal point.
-				[codeblock]
-				# n is 2
-				n = decimals(0.035)
-				[/codeblock]
+				Deprecated alias for "[method step_decimals]". 
 			</description>
 		</method>
 		<method name="dectime">
@@ -497,6 +494,17 @@
 				[/codeblock]
 			</description>
 		</method>
+		<method name="is_equal_approx">
+			<return type="bool">
+			</return>
+			<argument index="0" name="a" type="float">
+			</argument>
+			<argument index="1" name="b" type="float">
+			</argument>
+			<description>
+				Returns True/False whether [code]a[/code] and [code]b[/code] are approximately equal to each other.
+			</description>
+		</method>
 		<method name="is_inf">
 			<return type="bool">
 			</return>
@@ -524,6 +532,15 @@
 				Returns whether [code]s[/code] is a NaN (Not-A-Number) value.
 			</description>
 		</method>
+		<method name="is_zero_approx">
+			<return type="bool">
+			</return>
+			<argument index="0" name="s" type="float">
+			</argument>
+			<description>
+				Returns True/False whether [code]s[/code] is zero or almost zero.
+			</description>
+		</method>
 		<method name="len">
 			<return type="int">
 			</return>
@@ -972,6 +989,24 @@
 				[/codeblock]
 			</description>
 		</method>
+		<method name="smoothstep">
+			<return type="float">
+			</return>
+			<argument index="0" name="from" type="float">
+			</argument>
+			<argument index="1" name="to" type="float">
+			</argument>
+			<argument index="2" name="weight" type="float">
+			</argument>
+			<description>
+				Returns a number smoothly interpolated between the [code]from[/code] and [code]to[/code], based on the [code]weight[/code]. Similar to [method lerp], but interpolates faster at the beginning and slower at the end.
+				[codeblock]
+				smoothstep(0, 2, 0.5) # returns 0.15
+				smoothstep(0, 2, 1.0) # returns 0.5
+				smoothstep(0, 2, 2.0) # returns 1.0
+				[/codeblock]
+			</description>
+		</method>
 		<method name="sqrt">
 			<return type="float">
 			</return>
@@ -984,6 +1019,23 @@
 				[/codeblock]
 			</description>
 		</method>
+		<method name="step_decimals">
+			<return type="float">
+			</return>
+			<argument index="0" name="step" type="float">
+			</argument>
+			<description>
+				Returns the position of the first non-zero digit, after the decimal point.
+				[codeblock]
+				# n is 0
+				n = step_decimals(5)
+				# n is 4
+				n = step_decimals(1.0005)
+				# n is 9
+				n = step_decimals(0.000000005)
+				[/codeblock]
+			</description>
+		</method>
 		<method name="stepify">
 			<return type="float">
 			</return>
@@ -1112,8 +1164,10 @@
 			</return>
 			<argument index="0" name="var" type="Variant">
 			</argument>
+			<argument index="1" name="full_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Encodes a variable value to a byte array.
+				Encodes a variable value to a byte array. When [code]full_objects[/code] is [code]true[/code] encoding objects is allowed (and can potentially include code).
 			</description>
 		</method>
 		<method name="var2str">
diff --git a/doc/classes/@GlobalScope.xml b/doc/classes/@GlobalScope.xml
index ba2eb35f8c..d1e2a9c910 100644
--- a/doc/classes/@GlobalScope.xml
+++ b/doc/classes/@GlobalScope.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="@GlobalScope" category="Core" version="3.1">
+<class name="@GlobalScope" category="Core" version="3.2">
 	<brief_description>
 		Global scope constants and variables.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/@NativeScript.xml b/doc/classes/@NativeScript.xml
index 2bf1dc7a7c..cb5de198ac 100644
--- a/doc/classes/@NativeScript.xml
+++ b/doc/classes/@NativeScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="@NativeScript" category="Core" version="3.1">
+<class name="@NativeScript" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/@VisualScript.xml b/doc/classes/@VisualScript.xml
index d4a924a259..8d9408e6d4 100644
--- a/doc/classes/@VisualScript.xml
+++ b/doc/classes/@VisualScript.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="@VisualScript" category="Core" version="3.1">
+<class name="@VisualScript" category="Core" version="3.2">
 	<brief_description>
 		Built-in visual script functions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AABB.xml b/doc/classes/AABB.xml
index 2e0d0c15b2..8ec07e4d5c 100644
--- a/doc/classes/AABB.xml
+++ b/doc/classes/AABB.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AABB" category="Built-In Types" version="3.1">
+<class name="AABB" category="Built-In Types" version="3.2">
 	<brief_description>
 		Axis-Aligned Bounding Box.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/math/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="AABB">
 			<return type="AABB">
@@ -29,7 +27,7 @@
 			<argument index="0" name="with" type="AABB">
 			</argument>
 			<description>
-				Returns [code]true[/code] if this [code]AABB[/code] completely encloses another one.
+				Returns [code]true[/code] if this [AABB] completely encloses another one.
 			</description>
 		</method>
 		<method name="expand">
@@ -38,14 +36,14 @@
 			<argument index="0" name="to_point" type="Vector3">
 			</argument>
 			<description>
-				Returns this [code]AABB[/code] expanded to include a given point.
+				Returns this [AABB] expanded to include a given point.
 			</description>
 		</method>
 		<method name="get_area">
 			<return type="float">
 			</return>
 			<description>
-				Gets the area of the [code]AABB[/code].
+				Gets the area of the [AABB].
 			</description>
 		</method>
 		<method name="get_endpoint">
@@ -54,49 +52,49 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Gets the position of the 8 endpoints of the [code]AABB[/code] in space.
+				Gets the position of the 8 endpoints of the [AABB] in space.
 			</description>
 		</method>
 		<method name="get_longest_axis">
 			<return type="Vector3">
 			</return>
 			<description>
-				Returns the normalized longest axis of the [code]AABB[/code].
+				Returns the normalized longest axis of the [AABB].
 			</description>
 		</method>
 		<method name="get_longest_axis_index">
 			<return type="int">
 			</return>
 			<description>
-				Returns the index of the longest axis of the [code]AABB[/code] (according to [Vector3]::AXIS* enum).
+				Returns the index of the longest axis of the [AABB] (according to [Vector3]::AXIS* enum).
 			</description>
 		</method>
 		<method name="get_longest_axis_size">
 			<return type="float">
 			</return>
 			<description>
-				Returns the scalar length of the longest axis of the [code]AABB[/code].
+				Returns the scalar length of the longest axis of the [AABB].
 			</description>
 		</method>
 		<method name="get_shortest_axis">
 			<return type="Vector3">
 			</return>
 			<description>
-				Returns the normalized shortest axis of the [code]AABB[/code].
+				Returns the normalized shortest axis of the [AABB].
 			</description>
 		</method>
 		<method name="get_shortest_axis_index">
 			<return type="int">
 			</return>
 			<description>
-				Returns the index of the shortest axis of the [code]AABB[/code] (according to [Vector3]::AXIS* enum).
+				Returns the index of the shortest axis of the [AABB] (according to [Vector3]::AXIS* enum).
 			</description>
 		</method>
 		<method name="get_shortest_axis_size">
 			<return type="float">
 			</return>
 			<description>
-				Returns the scalar length of the shortest axis of the [code]AABB[/code].
+				Returns the scalar length of the shortest axis of the [AABB].
 			</description>
 		</method>
 		<method name="get_support">
@@ -114,21 +112,21 @@
 			<argument index="0" name="by" type="float">
 			</argument>
 			<description>
-				Returns a copy of the [code]AABB[/code] grown a given amount of units towards all the sides.
+				Returns a copy of the [AABB] grown a given amount of units towards all the sides.
 			</description>
 		</method>
 		<method name="has_no_area">
 			<return type="bool">
 			</return>
 			<description>
-				Returns [code]true[/code] if the [code]AABB[/code] is flat or empty.
+				Returns [code]true[/code] if the [AABB] is flat or empty.
 			</description>
 		</method>
 		<method name="has_no_surface">
 			<return type="bool">
 			</return>
 			<description>
-				Returns [code]true[/code] if the [code]AABB[/code] is empty.
+				Returns [code]true[/code] if the [AABB] is empty.
 			</description>
 		</method>
 		<method name="has_point">
@@ -137,7 +135,7 @@
 			<argument index="0" name="point" type="Vector3">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]AABB[/code] contains a point.
+				Returns [code]true[/code] if the [AABB] contains a point.
 			</description>
 		</method>
 		<method name="intersection">
@@ -146,7 +144,7 @@
 			<argument index="0" name="with" type="AABB">
 			</argument>
 			<description>
-				Returns the intersection between two [code]AABB[/code]. An empty AABB (size 0,0,0) is returned on failure.
+				Returns the intersection between two [AABB]. An empty AABB (size 0,0,0) is returned on failure.
 			</description>
 		</method>
 		<method name="intersects">
@@ -155,7 +153,7 @@
 			<argument index="0" name="with" type="AABB">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]AABB[/code] overlaps with another.
+				Returns [code]true[/code] if the [AABB] overlaps with another.
 			</description>
 		</method>
 		<method name="intersects_plane">
@@ -164,7 +162,7 @@
 			<argument index="0" name="plane" type="Plane">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]AABB[/code] is on both sides of a plane.
+				Returns [code]true[/code] if the [AABB] is on both sides of a plane.
 			</description>
 		</method>
 		<method name="intersects_segment">
@@ -175,7 +173,7 @@
 			<argument index="1" name="to" type="Vector3">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]AABB[/code] intersects the line segment between [code]from[/code] and [code]to[/code].
+				Returns [code]true[/code] if the [AABB] intersects the line segment between [code]from[/code] and [code]to[/code].
 			</description>
 		</method>
 		<method name="merge">
diff --git a/doc/classes/ARVRAnchor.xml b/doc/classes/ARVRAnchor.xml
index 5b9188b171..91f44151fa 100644
--- a/doc/classes/ARVRAnchor.xml
+++ b/doc/classes/ARVRAnchor.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRAnchor" inherits="Spatial" category="Core" version="3.1">
+<class name="ARVRAnchor" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Anchor point in AR Space.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_anchor_name" qualifiers="const">
 			<return type="String">
@@ -24,7 +22,14 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns true if the anchor is being tracked and false if no anchor with this id is currently known.
+				Returns [code]true[/code] if the anchor is being tracked and [code]false[/code] if no anchor with this id is currently known.
+			</description>
+		</method>
+		<method name="get_mesh" qualifiers="const">
+			<return type="Mesh">
+			</return>
+			<description>
+				If provided by the ARVR Interface this returns a mesh object for the anchor. For an anchor this can be a shape related to the object being tracked or it can be a mesh that provides topology related to the anchor and can be used to create shadows/reflections on surfaces or for generating collision shapes.
 			</description>
 		</method>
 		<method name="get_plane" qualifiers="const">
@@ -47,6 +52,15 @@
 			The anchor's id. You can set this before the anchor itself exists. The first anchor gets an id of [code]1[/code], the second an id of [code]2[/code], etc. When anchors get removed, the engine can then assign the corresponding id to new anchors. The most common situation where anchors 'disappear' is when the AR server identifies that two anchors represent different parts of the same plane and merges them.
 		</member>
 	</members>
+	<signals>
+		<signal name="mesh_updated">
+			<argument index="0" name="mesh" type="Mesh">
+			</argument>
+			<description>
+				Emitted when the mesh associated with the anchor changes or when one becomes available. This is especially important for topology that is constantly being mesh_updated.
+			</description>
+		</signal>
+	</signals>
 	<constants>
 	</constants>
 </class>
diff --git a/doc/classes/ARVRCamera.xml b/doc/classes/ARVRCamera.xml
index aca8282a7c..1c468f193f 100644
--- a/doc/classes/ARVRCamera.xml
+++ b/doc/classes/ARVRCamera.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRCamera" inherits="Camera" category="Core" version="3.1">
+<class name="ARVRCamera" inherits="Camera" category="Core" version="3.2">
 	<brief_description>
 		A camera node with a few overrules for AR/VR applied, such as location tracking.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ARVRController.xml b/doc/classes/ARVRController.xml
index ccb55375d2..c2b7fb2c08 100644
--- a/doc/classes/ARVRController.xml
+++ b/doc/classes/ARVRController.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRController" inherits="Spatial" category="Core" version="3.1">
+<class name="ARVRController" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		A spatial node representing a spatially tracked controller.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_controller_name" qualifiers="const">
 			<return type="String">
@@ -50,6 +48,13 @@
 				Returns the ID of the joystick object bound to this. Every controller tracked by the ARVR Server that has buttons and axis will also be registered as a joystick within Godot. This means that all the normal joystick tracking and input mapping will work for buttons and axis found on the AR/VR controllers. This ID is purely offered as information so you can link up the controller with its joystick entry.
 			</description>
 		</method>
+		<method name="get_mesh" qualifiers="const">
+			<return type="Mesh">
+			</return>
+			<description>
+				If provided by the ARVR Interface this returns a mesh associated with the controller. This can be used to visualise the controller.
+			</description>
+		</method>
 		<method name="is_button_pressed" qualifiers="const">
 			<return type="int">
 			</return>
@@ -86,6 +91,13 @@
 				Emitted when a button on this controller is released.
 			</description>
 		</signal>
+		<signal name="mesh_updated">
+			<argument index="0" name="mesh" type="Mesh">
+			</argument>
+			<description>
+				Emitted when the mesh associated with the controller changes or when one becomes available. Generally speaking this will be a static mesh after becoming available.
+			</description>
+		</signal>
 	</signals>
 	<constants>
 	</constants>
diff --git a/doc/classes/ARVRInterface.xml b/doc/classes/ARVRInterface.xml
index bf72902410..11084fb98e 100644
--- a/doc/classes/ARVRInterface.xml
+++ b/doc/classes/ARVRInterface.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRInterface" inherits="Reference" category="Core" version="3.1">
+<class name="ARVRInterface" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Base class for ARVR interface implementation.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_capabilities" qualifiers="const">
 			<return type="int">
@@ -55,7 +53,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns true if the current output of this interface is in stereo.
+				Returns [code]true[/code] if the current output of this interface is in stereo.
 			</description>
 		</method>
 		<method name="uninitialize">
diff --git a/doc/classes/ARVROrigin.xml b/doc/classes/ARVROrigin.xml
index 55062ba3ae..758f00a9ca 100644
--- a/doc/classes/ARVROrigin.xml
+++ b/doc/classes/ARVROrigin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVROrigin" inherits="Spatial" category="Core" version="3.1">
+<class name="ARVROrigin" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Our origin point in AR/VR.
 	</brief_description>
@@ -11,8 +11,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ARVRPositionalTracker.xml b/doc/classes/ARVRPositionalTracker.xml
index e703de36f4..de8b6b0620 100644
--- a/doc/classes/ARVRPositionalTracker.xml
+++ b/doc/classes/ARVRPositionalTracker.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRPositionalTracker" inherits="Object" category="Core" version="3.1">
+<class name="ARVRPositionalTracker" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		A tracked object
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_hand" qualifiers="const">
 			<return type="int" enum="ARVRPositionalTracker.TrackerHand">
@@ -27,6 +25,13 @@
 				If this is a controller that is being tracked the controller will also be represented by a joystick entry with this id.
 			</description>
 		</method>
+		<method name="get_mesh" qualifiers="const">
+			<return type="Mesh">
+			</return>
+			<description>
+				Returns the mesh related to a controller or anchor point if one is available.
+			</description>
+		</method>
 		<method name="get_name" qualifiers="const">
 			<return type="String">
 			</return>
diff --git a/doc/classes/ARVRServer.xml b/doc/classes/ARVRServer.xml
index e089360c46..6f5a76943f 100644
--- a/doc/classes/ARVRServer.xml
+++ b/doc/classes/ARVRServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRServer" inherits="Object" category="Core" version="3.1">
+<class name="ARVRServer" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		This is our AR/VR Server.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="center_on_hmd">
 			<return type="void">
@@ -56,7 +54,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Get the number of interfaces currently registered with the AR/VR server. If your game supports multiple AR/VR platforms, you can look through the available interface, and either present the user with a selection or simply try an initialize each interface and use the first one that returns true.
+				Get the number of interfaces currently registered with the AR/VR server. If your game supports multiple AR/VR platforms, you can look through the available interface, and either present the user with a selection or simply try an initialize each interface and use the first one that returns [code]true[/code].
 			</description>
 		</method>
 		<method name="get_interfaces" qualifiers="const">
diff --git a/doc/classes/AStar.xml b/doc/classes/AStar.xml
index e1b79a2a3e..16ceb293ad 100644
--- a/doc/classes/AStar.xml
+++ b/doc/classes/AStar.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AStar" inherits="Reference" category="Core" version="3.1">
+<class name="AStar" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		AStar class representation that uses vectors as edges.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_compute_cost" qualifiers="virtual">
 			<return type="float">
@@ -226,6 +224,15 @@
 				Returns whether a point associated with the given id exists.
 			</description>
 		</method>
+		<method name="is_point_disabled" qualifiers="const">
+			<return type="bool">
+			</return>
+			<argument index="0" name="id" type="int">
+			</argument>
+			<description>
+				Returns whether a point is disabled or not for pathfinding. By default, all points are enabled.
+			</description>
+		</method>
 		<method name="remove_point">
 			<return type="void">
 			</return>
@@ -235,6 +242,17 @@
 				Removes the point associated with the given id from the points pool.
 			</description>
 		</method>
+		<method name="set_point_disabled">
+			<return type="void">
+			</return>
+			<argument index="0" name="id" type="int">
+			</argument>
+			<argument index="1" name="disabled" type="bool" default="true">
+			</argument>
+			<description>
+				Disables or enables the specified point for pathfinding. Useful for making a temporary obstacle.
+			</description>
+		</method>
 		<method name="set_point_position">
 			<return type="void">
 			</return>
diff --git a/doc/classes/AcceptDialog.xml b/doc/classes/AcceptDialog.xml
index fc27bdbb81..4adf515abc 100644
--- a/doc/classes/AcceptDialog.xml
+++ b/doc/classes/AcceptDialog.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AcceptDialog" inherits="WindowDialog" category="Core" version="3.1">
+<class name="AcceptDialog" inherits="WindowDialog" category="Core" version="3.2">
 	<brief_description>
 		Base dialog for user notification.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_button">
 			<return type="Button">
diff --git a/doc/classes/AnimatedSprite.xml b/doc/classes/AnimatedSprite.xml
index 7f9167c49a..5e63f8aec0 100644
--- a/doc/classes/AnimatedSprite.xml
+++ b/doc/classes/AnimatedSprite.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimatedSprite" inherits="Node2D" category="Core" version="3.1">
+<class name="AnimatedSprite" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Sprite node that can use multiple textures for animation.
 	</brief_description>
@@ -8,14 +8,12 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_playing" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
-				Return true if an animation if currently being played.
+				Return [code]true[/code] if an animation if currently being played.
 			</description>
 		</method>
 		<method name="play">
@@ -23,8 +21,10 @@
 			</return>
 			<argument index="0" name="anim" type="String" default="&quot;&quot;">
 			</argument>
+			<argument index="1" name="backwards" type="bool" default="false">
+			</argument>
 			<description>
-				Play the animation set in parameter. If no parameter is provided, the current animation is played.
+				Play the animation set in parameter. If no parameter is provided, the current animation is played. Property [code]backwards[/code] plays the animation in reverse if set to [code]true[/code].
 			</description>
 		</method>
 		<method name="stop">
@@ -61,6 +61,7 @@
 			If [code]true[/code], the [member animation] is currently playing.
 		</member>
 		<member name="speed_scale" type="float" setter="set_speed_scale" getter="get_speed_scale">
+			The animation speed is multiplied by this value.
 		</member>
 	</members>
 	<signals>
diff --git a/doc/classes/AnimatedSprite3D.xml b/doc/classes/AnimatedSprite3D.xml
index dcc44e2df4..4c6868d807 100644
--- a/doc/classes/AnimatedSprite3D.xml
+++ b/doc/classes/AnimatedSprite3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimatedSprite3D" inherits="SpriteBase3D" category="Core" version="3.1">
+<class name="AnimatedSprite3D" inherits="SpriteBase3D" category="Core" version="3.2">
 	<brief_description>
 		2D sprite node in 3D world, that can use multiple 2D textures for animation.
 	</brief_description>
@@ -8,14 +8,12 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_playing" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
-				Return true if an animation if currently being played.
+				Return [code]true[/code] if an animation if currently being played.
 			</description>
 		</method>
 		<method name="play">
diff --git a/doc/classes/AnimatedTexture.xml b/doc/classes/AnimatedTexture.xml
index 871ae1a701..2009139474 100644
--- a/doc/classes/AnimatedTexture.xml
+++ b/doc/classes/AnimatedTexture.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimatedTexture" inherits="Texture" category="Core" version="3.1">
+<class name="AnimatedTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		Proxy texture for simple frame-based animations.
 	</brief_description>
 	<description>
-		[code]AnimatedTexture[/code] is a resource format for frame-based animations, where multiple textures can be chained automatically with a predefined delay for each frame. Unlike [AnimationPlayer] or [AnimatedSprite], it isn't a [Node], but has the advantage of being usable anywhere a [Texture] resource can be used, e.g. in a [TileSet].
+		[AnimatedTexture] is a resource format for frame-based animations, where multiple textures can be chained automatically with a predefined delay for each frame. Unlike [AnimationPlayer] or [AnimatedSprite], it isn't a [Node], but has the advantage of being usable anywhere a [Texture] resource can be used, e.g. in a [TileSet].
 		The playback of the animation is controlled by the [member fps] property as well as each frame's optional delay (see [method set_frame_delay]). The animation loops, i.e. it will restart at frame 0 automatically after playing the last frame.
-		[code]AnimatedTexture[/code] currently requires all frame textures to have the same size, otherwise the bigger ones will be cropped to match the smallest one.
+		[AnimatedTexture] currently requires all frame textures to have the same size, otherwise the bigger ones will be cropped to match the smallest one.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_frame_delay" qualifiers="const">
 			<return type="float">
@@ -73,7 +71,7 @@
 	</members>
 	<constants>
 		<constant name="MAX_FRAMES" value="256">
-			The maximum number of frames supported by [code]AnimatedTexture[/code]. If you need more frames in your animation, use [AnimationPlayer] or [AnimatedSprite].
+			The maximum number of frames supported by [AnimatedTexture]. If you need more frames in your animation, use [AnimationPlayer] or [AnimatedSprite].
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/Animation.xml b/doc/classes/Animation.xml
index eaaa64d53d..af3abed256 100644
--- a/doc/classes/Animation.xml
+++ b/doc/classes/Animation.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Animation" inherits="Resource" category="Core" version="3.1">
+<class name="Animation" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Contains data used to animate everything in the engine.
 	</brief_description>
@@ -19,8 +19,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/animation/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_track">
 			<return type="int">
@@ -440,7 +438,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Return true if the given track is imported. Else, return false.
+				Return [code]true[/code] if the given track is imported. Else, return [code]false[/code].
 			</description>
 		</method>
 		<method name="track_move_down">
diff --git a/doc/classes/AnimationNode.xml b/doc/classes/AnimationNode.xml
index a98facf541..e61fe374fa 100644
--- a/doc/classes/AnimationNode.xml
+++ b/doc/classes/AnimationNode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNode" inherits="Resource" category="Core" version="3.1">
+<class name="AnimationNode" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Base resource for [AnimationTree] nodes.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_input">
 			<return type="void">
@@ -54,7 +52,7 @@
 			<argument index="5" name="optimize" type="bool" default="true">
 			</argument>
 			<description>
-				Blend an input. This is only useful for nodes created for an [AnimationNodeBlendTree]. Time is a delta, unless "seek" is true, in which case it is absolute. A filter mode may be optionally passed.
+				Blend an input. This is only useful for nodes created for an [AnimationNodeBlendTree]. Time is a delta, unless "seek" is [code]true[/code], in which case it is absolute. A filter mode may be optionally passed.
 			</description>
 		</method>
 		<method name="blend_node">
@@ -146,7 +144,7 @@
 			<return type="String">
 			</return>
 			<description>
-				Return true whether you want the blend tree editor to display filter editing on this node.
+				Return [code]true[/code] whether you want the blend tree editor to display filter editing on this node.
 			</description>
 		</method>
 		<method name="is_path_filtered" qualifiers="const">
@@ -155,7 +153,7 @@
 			<argument index="0" name="path" type="NodePath">
 			</argument>
 			<description>
-				Return true wether a given path is filtered.
+				Return [code]true[/code] wether a given path is filtered.
 			</description>
 		</method>
 		<method name="process" qualifiers="virtual">
@@ -166,7 +164,7 @@
 			<argument index="1" name="seek" type="bool">
 			</argument>
 			<description>
-				Called when a custom node is processed. The argument "time" is relative, unless "seek" is true (in which case it is absolute).
+				Called when a custom node is processed. The argument "time" is relative, unless "seek" is [code]true[/code] (in which case it is absolute).
 			Here, call the [method blend_input], [method blend_node] or [method blend_animation] functions.
 			You can also use [method get_parameter] and [method set_parameter] to modify local memory.
 			This function returns the time left for the current animation to finish (if unsure, just pass  the value from the main blend being called).
diff --git a/doc/classes/AnimationNodeAdd2.xml b/doc/classes/AnimationNodeAdd2.xml
index 9297faa1b7..ac2a28e396 100644
--- a/doc/classes/AnimationNodeAdd2.xml
+++ b/doc/classes/AnimationNodeAdd2.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeAdd2" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeAdd2" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AnimationNodeAdd3.xml b/doc/classes/AnimationNodeAdd3.xml
index deb8d74a38..9cfeb47378 100644
--- a/doc/classes/AnimationNodeAdd3.xml
+++ b/doc/classes/AnimationNodeAdd3.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeAdd3" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeAdd3" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AnimationNodeAnimation.xml b/doc/classes/AnimationNodeAnimation.xml
index de8e918f68..e7d53fc7b3 100644
--- a/doc/classes/AnimationNodeAnimation.xml
+++ b/doc/classes/AnimationNodeAnimation.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeAnimation" inherits="AnimationRootNode" category="Core" version="3.1">
+<class name="AnimationNodeAnimation" inherits="AnimationRootNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AnimationNodeBlend2.xml b/doc/classes/AnimationNodeBlend2.xml
index 42bb12d9d0..f15fa44f39 100644
--- a/doc/classes/AnimationNodeBlend2.xml
+++ b/doc/classes/AnimationNodeBlend2.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeBlend2" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeBlend2" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AnimationNodeBlend3.xml b/doc/classes/AnimationNodeBlend3.xml
index cd3d9f9bc8..2f82eea041 100644
--- a/doc/classes/AnimationNodeBlend3.xml
+++ b/doc/classes/AnimationNodeBlend3.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeBlend3" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeBlend3" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AnimationNodeBlendSpace1D.xml b/doc/classes/AnimationNodeBlendSpace1D.xml
index 2113948b2e..b13aee277e 100644
--- a/doc/classes/AnimationNodeBlendSpace1D.xml
+++ b/doc/classes/AnimationNodeBlendSpace1D.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeBlendSpace1D" inherits="AnimationRootNode" category="Core" version="3.1">
+<class name="AnimationNodeBlendSpace1D" inherits="AnimationRootNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_blend_point">
 			<return type="void">
diff --git a/doc/classes/AnimationNodeBlendSpace2D.xml b/doc/classes/AnimationNodeBlendSpace2D.xml
index b205c01468..2ec5977301 100644
--- a/doc/classes/AnimationNodeBlendSpace2D.xml
+++ b/doc/classes/AnimationNodeBlendSpace2D.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeBlendSpace2D" inherits="AnimationRootNode" category="Core" version="3.1">
+<class name="AnimationNodeBlendSpace2D" inherits="AnimationRootNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_blend_point">
 			<return type="void">
@@ -136,8 +134,10 @@
 		<constant name="BLEND_MODE_INTERPOLATED" value="0" enum="BlendMode">
 		</constant>
 		<constant name="BLEND_MODE_DISCRETE" value="1" enum="BlendMode">
+			Useful for frame-by-frame 2D animations.
 		</constant>
 		<constant name="BLEND_MODE_DISCRETE_CARRY" value="2" enum="BlendMode">
+			Keep the current play position when switching between discrete animations.
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/AnimationNodeBlendTree.xml b/doc/classes/AnimationNodeBlendTree.xml
index cd28232908..6454a26a04 100644
--- a/doc/classes/AnimationNodeBlendTree.xml
+++ b/doc/classes/AnimationNodeBlendTree.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeBlendTree" inherits="AnimationRootNode" category="Core" version="3.1">
+<class name="AnimationNodeBlendTree" inherits="AnimationRootNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_node">
 			<return type="void">
diff --git a/doc/classes/AnimationNodeOneShot.xml b/doc/classes/AnimationNodeOneShot.xml
index 12cb9775a2..b6a6459c9e 100644
--- a/doc/classes/AnimationNodeOneShot.xml
+++ b/doc/classes/AnimationNodeOneShot.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeOneShot" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeOneShot" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_mix_mode" qualifiers="const">
 			<return type="int" enum="AnimationNodeOneShot.MixMode">
diff --git a/doc/classes/AnimationNodeOutput.xml b/doc/classes/AnimationNodeOutput.xml
index 98a41bc9cb..bfe28319c6 100644
--- a/doc/classes/AnimationNodeOutput.xml
+++ b/doc/classes/AnimationNodeOutput.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeOutput" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeOutput" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AnimationNodeStateMachine.xml b/doc/classes/AnimationNodeStateMachine.xml
index ed4098d938..b80069095b 100644
--- a/doc/classes/AnimationNodeStateMachine.xml
+++ b/doc/classes/AnimationNodeStateMachine.xml
@@ -1,13 +1,16 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeStateMachine" inherits="AnimationRootNode" category="Core" version="3.1">
+<class name="AnimationNodeStateMachine" inherits="AnimationRootNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
+		Contains multiple root nodes as children in a graph. Each node is used as a state, and provides multiple functions to alternate between states. Retrieve the AnimationNodeStateMachinePlayback object from the [AnimationTree] node to control it programatically.
+		[codeblock]
+		var state_machine = anim_tree["parameters/StateMachine/playback"]
+		state_machine.travel("SomeState")
+		[codeblock]
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_node">
 			<return type="void">
@@ -170,7 +173,7 @@
 		<method name="set_graph_offset">
 			<return type="void">
 			</return>
-			<argument index="0" name="name" type="Vector2">
+			<argument index="0" name="offset" type="Vector2">
 			</argument>
 			<description>
 			</description>
diff --git a/doc/classes/AnimationNodeStateMachinePlayback.xml b/doc/classes/AnimationNodeStateMachinePlayback.xml
index 6bf9504efb..fd38c28b16 100644
--- a/doc/classes/AnimationNodeStateMachinePlayback.xml
+++ b/doc/classes/AnimationNodeStateMachinePlayback.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeStateMachinePlayback" inherits="Resource" category="Core" version="3.1">
+<class name="AnimationNodeStateMachinePlayback" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_current_node" qualifiers="const">
 			<return type="String">
@@ -47,6 +45,7 @@
 			<argument index="0" name="to_node" type="String">
 			</argument>
 			<description>
+				Transition from the current state to another one, while visiting all the intermediate ones. This is done via the A* algorithm.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/AnimationNodeStateMachineTransition.xml b/doc/classes/AnimationNodeStateMachineTransition.xml
index e07a9fc980..a21ee50949 100644
--- a/doc/classes/AnimationNodeStateMachineTransition.xml
+++ b/doc/classes/AnimationNodeStateMachineTransition.xml
@@ -1,27 +1,31 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeStateMachineTransition" inherits="Resource" category="Core" version="3.1">
+<class name="AnimationNodeStateMachineTransition" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="advance_condition" type="String" setter="set_advance_condition" getter="get_advance_condition">
+			Turn on auto advance when this condition is set. This is a custom text field that can be filled with a variable name. The variable can be modified from code.
 		</member>
 		<member name="auto_advance" type="bool" setter="set_auto_advance" getter="has_auto_advance">
+			Turn on the transition automatically when this state is reached. This works best with [code]SWITCH_MODE_AT_END[/code].
 		</member>
 		<member name="disabled" type="bool" setter="set_disabled" getter="is_disabled">
+			Don't use this transition during [method AnimationNodeStateMachinePlayback.travel] or [member auto_advance].
 		</member>
 		<member name="priority" type="int" setter="set_priority" getter="get_priority">
+			Lower priority transitions are preferred when travelling through the tree via [method AnimationNodeStateMachinePlayback.travel] or [member auto_advance].
 		</member>
 		<member name="switch_mode" type="int" setter="set_switch_mode" getter="get_switch_mode" enum="AnimationNodeStateMachineTransition.SwitchMode">
+			The transition type.
 		</member>
 		<member name="xfade_time" type="float" setter="set_xfade_time" getter="get_xfade_time">
+			The time to cross-fade between this state and the next.
 		</member>
 	</members>
 	<signals>
@@ -32,10 +36,13 @@
 	</signals>
 	<constants>
 		<constant name="SWITCH_MODE_IMMEDIATE" value="0" enum="SwitchMode">
+			Switch to the next state immediately. The current state will end and blend into the beginning of the new one.
 		</constant>
 		<constant name="SWITCH_MODE_SYNC" value="1" enum="SwitchMode">
+			Switch to the next state immediately, but will seek the new state to the playback position of the old state.
 		</constant>
 		<constant name="SWITCH_MODE_AT_END" value="2" enum="SwitchMode">
+			Wait for the current state playback to end, then switch to the beginning of the next state animation.
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/AnimationNodeTimeScale.xml b/doc/classes/AnimationNodeTimeScale.xml
index 226c855b83..9ce773c4e2 100644
--- a/doc/classes/AnimationNodeTimeScale.xml
+++ b/doc/classes/AnimationNodeTimeScale.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeTimeScale" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeTimeScale" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AnimationNodeTimeSeek.xml b/doc/classes/AnimationNodeTimeSeek.xml
index 707b09a4a5..d593f5489c 100644
--- a/doc/classes/AnimationNodeTimeSeek.xml
+++ b/doc/classes/AnimationNodeTimeSeek.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeTimeSeek" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeTimeSeek" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AnimationNodeTransition.xml b/doc/classes/AnimationNodeTransition.xml
index 317bc5ed69..311d0e8486 100644
--- a/doc/classes/AnimationNodeTransition.xml
+++ b/doc/classes/AnimationNodeTransition.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationNodeTransition" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationNodeTransition" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AnimationPlayer.xml b/doc/classes/AnimationPlayer.xml
index 21aba282ee..5ea993f83d 100644
--- a/doc/classes/AnimationPlayer.xml
+++ b/doc/classes/AnimationPlayer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationPlayer" inherits="Node" category="Core" version="3.1">
+<class name="AnimationPlayer" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Container and player of [Animation] resources.
 	</brief_description>
@@ -10,8 +10,6 @@
 		<link>https://docs.godotengine.org/en/latest/getting_started/step_by_step/animations.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/animation/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_animation">
 			<return type="int" enum="Error">
@@ -57,7 +55,7 @@
 			<return type="void">
 			</return>
 			<description>
-				[code]AnimationPlayer[/code] caches animated nodes. It may not notice if a node disappears, so clear_caches forces it to update the cache again.
+				[AnimationPlayer] caches animated nodes. It may not notice if a node disappears, so clear_caches forces it to update the cache again.
 			</description>
 		</method>
 		<method name="clear_queue">
@@ -122,7 +120,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]AnimationPlayer[/code] stores an [Animation] with key [code]name[/code].
+				Returns [code]true[/code] if the [AnimationPlayer] stores an [Animation] with key [code]name[/code].
 			</description>
 		</method>
 		<method name="is_playing" qualifiers="const">
@@ -144,7 +142,7 @@
 			<argument index="3" name="from_end" type="bool" default="false">
 			</argument>
 			<description>
-				Play the animation with key [code]name[/code]. Custom speed and blend times can be set. If custom speed is negative (-1), 'from_end' being true can play the animation backwards.
+				Play the animation with key [code]name[/code]. Custom speed and blend times can be set. If custom speed is negative (-1), 'from_end' being [code]true[/code] can play the animation backwards.
 				If the animation has been paused by [code]stop(true)[/code] it will be resumed. Calling [code]play()[/code] without arguments will also resume the animation.
 			</description>
 		</method>
diff --git a/doc/classes/AnimationRootNode.xml b/doc/classes/AnimationRootNode.xml
index dab2c12373..735f3215e9 100644
--- a/doc/classes/AnimationRootNode.xml
+++ b/doc/classes/AnimationRootNode.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationRootNode" inherits="AnimationNode" category="Core" version="3.1">
+<class name="AnimationRootNode" inherits="AnimationNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AnimationTrackEditPlugin.xml b/doc/classes/AnimationTrackEditPlugin.xml
index f322a556b1..2dcabb051f 100644
--- a/doc/classes/AnimationTrackEditPlugin.xml
+++ b/doc/classes/AnimationTrackEditPlugin.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationTrackEditPlugin" inherits="Reference" category="Core" version="3.1">
+<class name="AnimationTrackEditPlugin" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AnimationTree.xml b/doc/classes/AnimationTree.xml
index 9a6a75079c..f3dc1ecc1e 100644
--- a/doc/classes/AnimationTree.xml
+++ b/doc/classes/AnimationTree.xml
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationTree" inherits="Node" category="Core" version="3.1">
+<class name="AnimationTree" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
+		<link>https://docs.godotengine.org/en/latest/tutorials/animation/animation_tree.html</link>
+		<link>https://github.com/godotengine/tps-demo</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="advance">
 			<return type="void">
diff --git a/doc/classes/AnimationTreePlayer.xml b/doc/classes/AnimationTreePlayer.xml
index cfec75bc3a..6160b44076 100644
--- a/doc/classes/AnimationTreePlayer.xml
+++ b/doc/classes/AnimationTreePlayer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AnimationTreePlayer" inherits="Node" category="Core" version="3.1">
+<class name="AnimationTreePlayer" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Animation Player that uses a node graph for blending Animations.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_node">
 			<return type="void">
@@ -38,7 +36,7 @@
 			<argument index="0" name="id" type="String">
 			</argument>
 			<description>
-				Returns the [AnimationPlayer]'s [Animation] bound to the [code]AnimationTreePlayer[/code]'s animation node with name [code]id[/code].
+				Returns the [AnimationPlayer]'s [Animation] bound to the [AnimationTreePlayer]'s animation node with name [code]id[/code].
 			</description>
 		</method>
 		<method name="animation_node_get_master_animation" qualifiers="const">
@@ -66,7 +64,7 @@
 			<argument index="1" name="animation" type="Animation">
 			</argument>
 			<description>
-				Binds a new [Animation] from the [member master_player] to the [code]AnimationTreePlayer[/code]'s animation node with name [code]id[/code].
+				Binds a new [Animation] from the [member master_player] to the [AnimationTreePlayer]'s animation node with name [code]id[/code].
 			</description>
 		</method>
 		<method name="animation_node_set_filter_path">
@@ -472,7 +470,7 @@
 			<return type="void">
 			</return>
 			<description>
-				Resets this [code]AnimationTreePlayer[/code].
+				Resets this [AnimationTreePlayer].
 			</description>
 		</method>
 		<method name="timescale_node_get_scale" qualifiers="const">
@@ -607,14 +605,14 @@
 	</methods>
 	<members>
 		<member name="active" type="bool" setter="set_active" getter="is_active">
-			If [code]true[/code], the [code]AnimationTreePlayer[/code] is able to play animations. Default value: [code]false[/code].
+			If [code]true[/code], the [AnimationTreePlayer] is able to play animations. Default value: [code]false[/code].
 		</member>
 		<member name="base_path" type="NodePath" setter="set_base_path" getter="get_base_path">
 			The node from which to relatively access other nodes. Default value: [code]".."[/code].
 			It accesses the Bones, so it should point to the same Node the AnimationPlayer would point its Root Node at.
 		</member>
 		<member name="master_player" type="NodePath" setter="set_master_player" getter="get_master_player">
-			The path to the [AnimationPlayer] from which this [code]AnimationTreePlayer[/code] binds animations to animation nodes.
+			The path to the [AnimationPlayer] from which this [AnimationTreePlayer] binds animations to animation nodes.
 			Once set, Animation nodes can be added to the AnimationTreePlayer.
 		</member>
 		<member name="playback_process_mode" type="int" setter="set_animation_process_mode" getter="get_animation_process_mode" enum="AnimationTreePlayer.AnimationProcessMode">
diff --git a/doc/classes/Area.xml b/doc/classes/Area.xml
index a538fe9935..c39c570be9 100644
--- a/doc/classes/Area.xml
+++ b/doc/classes/Area.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Area" inherits="CollisionObject" category="Core" version="3.1">
+<class name="Area" inherits="CollisionObject" category="Core" version="3.2">
 	<brief_description>
 		General purpose area node for detection and 3D physics influence.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_collision_layer_bit" qualifiers="const">
 			<return type="bool">
@@ -33,7 +31,7 @@
 			<return type="Array">
 			</return>
 			<description>
-				Returns a list of intersecting [code]Area[/code]s. For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.
+				Returns a list of intersecting [Area]s. For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.
 			</description>
 		</method>
 		<method name="get_overlapping_bodies" qualifiers="const">
@@ -69,7 +67,7 @@
 			<argument index="1" name="value" type="bool">
 			</argument>
 			<description>
-				Set/clear individual bits on the layer mask. This simplifies editing this [code]Area[/code]'s layers.
+				Set/clear individual bits on the layer mask. This simplifies editing this [Area]'s layers.
 			</description>
 		</method>
 		<method name="set_collision_mask_bit">
@@ -80,7 +78,7 @@
 			<argument index="1" name="value" type="bool">
 			</argument>
 			<description>
-				Set/clear individual bits on the collision mask. This simplifies editing which [code]Area[/code] layers this [code]Area[/code] scans.
+				Set/clear individual bits on the collision mask. This simplifies editing which [Area] layers this [Area] scans.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/Area2D.xml b/doc/classes/Area2D.xml
index 7980fe79ba..2400efe0d3 100644
--- a/doc/classes/Area2D.xml
+++ b/doc/classes/Area2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Area2D" inherits="CollisionObject2D" category="Core" version="3.1">
+<class name="Area2D" inherits="CollisionObject2D" category="Core" version="3.2">
 	<brief_description>
 		2D area for detection and 2D physics influence.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_collision_layer_bit" qualifiers="const">
 			<return type="bool">
@@ -33,7 +31,7 @@
 			<return type="Array">
 			</return>
 			<description>
-				Returns a list of intersecting [code]Area2D[/code]s. For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.
+				Returns a list of intersecting [Area2D]s. For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.
 			</description>
 		</method>
 		<method name="get_overlapping_bodies" qualifiers="const">
diff --git a/doc/classes/Array.xml b/doc/classes/Array.xml
index 0b5c0eb0b3..75194fbf76 100644
--- a/doc/classes/Array.xml
+++ b/doc/classes/Array.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Array" category="Built-In Types" version="3.1">
+<class name="Array" category="Built-In Types" version="3.2">
 	<brief_description>
 		Generic array datatype.
 	</brief_description>
@@ -17,8 +17,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Array">
 			<return type="Array">
@@ -105,7 +103,7 @@
 			<argument index="1" name="before" type="bool" default="True">
 			</argument>
 			<description>
-				Finds the index of an existing value (or the insertion index that maintains sorting order, if the value is not yet present in the array) using binary search. Optionally, a before specifier can be passed. If false, the returned index comes after all existing entries of the value in the array. Note that calling bsearch on an unsorted array results in unexpected behavior.
+				Finds the index of an existing value (or the insertion index that maintains sorting order, if the value is not yet present in the array) using binary search. Optionally, a before specifier can be passed. If [code]false[/code], the returned index comes after all existing entries of the value in the array. Note that calling bsearch on an unsorted array results in unexpected behavior.
 			</description>
 		</method>
 		<method name="bsearch_custom">
@@ -120,7 +118,7 @@
 			<argument index="3" name="before" type="bool" default="True">
 			</argument>
 			<description>
-				Finds the index of an existing value (or the insertion index that maintains sorting order, if the value is not yet present in the array) using binary search and a custom comparison method. Optionally, a before specifier can be passed. If false, the returned index comes after all existing entries of the value in the array. The custom method receives two arguments (an element from the array and the value searched for) and must return true if the first argument is less than the second, and return false otherwise. Note that calling bsearch on an unsorted array results in unexpected behavior.
+				Finds the index of an existing value (or the insertion index that maintains sorting order, if the value is not yet present in the array) using binary search and a custom comparison method. Optionally, a before specifier can be passed. If [code]false[/code], the returned index comes after all existing entries of the value in the array. The custom method receives two arguments (an element from the array and the value searched for) and must return [code]true[/code] if the first argument is less than the second, and return [code]false[/code] otherwise. Note that calling bsearch on an unsorted array results in unexpected behavior.
 			</description>
 		</method>
 		<method name="clear">
@@ -293,7 +291,7 @@
 		</method>
 		<method name="shuffle">
 			<description>
-				Shuffles the array such that the items will have a random order.
+				Shuffles the array such that the items will have a random order. This method uses the global random number generator common to methods such as [method @GDScript.randi]. Call [method @GDScript.randomize] to ensure that a new seed will be used each time if you want non-reproducible shuffling.
 			</description>
 		</method>
 		<method name="size">
@@ -314,7 +312,7 @@
 			<argument index="1" name="func" type="String">
 			</argument>
 			<description>
-				Sorts the array using a custom method. The arguments are an object that holds the method and the name of such method. The custom method receives two arguments (a pair of elements from the array) and must return true if the first argument is less than the second, and return false otherwise.
+				Sorts the array using a custom method. The arguments are an object that holds the method and the name of such method. The custom method receives two arguments (a pair of elements from the array) and must return [code]true[/code] if the first argument is less than the second, and return [code]false[/code] otherwise.
 				[b]Note:[/b] you cannot randomize the return value as the heapsort algorithm expects a deterministic result. Doing so will result in unexpected behavior.
 				[codeblock]
 				class MyCustomSorter:
diff --git a/doc/classes/ArrayMesh.xml b/doc/classes/ArrayMesh.xml
index fd66777997..db0fc77b25 100644
--- a/doc/classes/ArrayMesh.xml
+++ b/doc/classes/ArrayMesh.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ArrayMesh" inherits="Mesh" category="Core" version="3.1">
+<class name="ArrayMesh" inherits="Mesh" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
-		The [code]ArrayMesh[/code] is used to construct a [Mesh] by specifying the attributes as arrays. The most basic example is the creation of a single triangle
+		The [ArrayMesh] is used to construct a [Mesh] by specifying the attributes as arrays. The most basic example is the creation of a single triangle
 		[codeblock]
 		var vertices = PoolVector3Array()
 		vertices.push_back(Vector3(0, 1, 0))
@@ -23,8 +23,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_blend_shape">
 			<return type="void">
@@ -57,14 +55,14 @@
 			<return type="void">
 			</return>
 			<description>
-				Remove all blend shapes from this [code]ArrayMesh[/code].
+				Remove all blend shapes from this [ArrayMesh].
 			</description>
 		</method>
 		<method name="get_blend_shape_count" qualifiers="const">
 			<return type="int">
 			</return>
 			<description>
-				Returns the number of blend shapes that the [code]ArrayMesh[/code] holds.
+				Returns the number of blend shapes that the [ArrayMesh] holds.
 			</description>
 		</method>
 		<method name="get_blend_shape_name" qualifiers="const">
@@ -84,14 +82,14 @@
 			<argument index="1" name="texel_size" type="float">
 			</argument>
 			<description>
-				Will perform a UV unwrap on the [code]ArrayMesh[/code] to prepare the mesh for lightmapping.
+				Will perform a UV unwrap on the [ArrayMesh] to prepare the mesh for lightmapping.
 			</description>
 		</method>
 		<method name="regen_normalmaps">
 			<return type="void">
 			</return>
 			<description>
-				Will regenerate normal maps for the [code]ArrayMesh[/code].
+				Will regenerate normal maps for the [ArrayMesh].
 			</description>
 		</method>
 		<method name="surface_find_by_name" qualifiers="const">
@@ -100,7 +98,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Return the index of the first surface with this name held within this [code]ArrayMesh[/code]. If none are found -1 is returned.
+				Return the index of the first surface with this name held within this [ArrayMesh]. If none are found -1 is returned.
 			</description>
 		</method>
 		<method name="surface_get_array_index_len" qualifiers="const">
@@ -207,31 +205,31 @@
 			Amount of weights/bone indices per vertex (always 4).
 		</constant>
 		<constant name="ARRAY_VERTEX" value="0" enum="ArrayType">
-			Vertex array (array of [Vector3] vertices).
+			[PoolVector3Array], [PoolVector2Array], or [Array] of vertex positions.
 		</constant>
 		<constant name="ARRAY_NORMAL" value="1" enum="ArrayType">
-			Normal array (array of [Vector3] normals).
+			[PoolVector3Array] of vertex normals.
 		</constant>
 		<constant name="ARRAY_TANGENT" value="2" enum="ArrayType">
-			Tangent array, array of groups of 4 floats. first 3 floats determine the tangent, and the last the binormal direction as -1 or 1.
+			[PoolRealArray] of vertex tangents. Each element in groups of 4 floats, first 3 floats determine the tangent, and the last the binormal direction as -1 or 1.
 		</constant>
 		<constant name="ARRAY_COLOR" value="3" enum="ArrayType">
-			Vertex array (array of [Color] colors).
+			[PoolColorArray] of vertex colors.
 		</constant>
 		<constant name="ARRAY_TEX_UV" value="4" enum="ArrayType">
-			UV array (array of [Vector3] UVs or float array of groups of 2 floats (u,v)).
+			[PoolVector2Array] for UV coordinates.
 		</constant>
 		<constant name="ARRAY_TEX_UV2" value="5" enum="ArrayType">
-			Second UV array (array of [Vector3] UVs or float array of groups of 2 floats (u,v)).
+			[PoolVector2Array] for second UV coordinates.
 		</constant>
 		<constant name="ARRAY_BONES" value="6" enum="ArrayType">
-			Array of bone indices, as a float array. Each element in groups of 4 floats.
+			[PoolRealArray] or [PoolIntArray] of bone indices. Each element in groups of 4 floats.
 		</constant>
 		<constant name="ARRAY_WEIGHTS" value="7" enum="ArrayType">
-			Array of bone weights, as a float array. Each element in groups of 4 floats.
+			[PoolRealArray] of bone weights. Each element in groups of 4 floats.
 		</constant>
 		<constant name="ARRAY_INDEX" value="8" enum="ArrayType">
-			[Array] of integers used as indices referencing vertices, colors, normals, tangents, and textures. All of those arrays must have the same number of elements as the vertex array. No index can be beyond the vertex array size. When this index array is present, it puts the function into "index mode," where the index selects the *i*'th vertex, normal, tangent, color, UV, etc. This means if you want to have different normals or colors along an edge, you have to duplicate the vertices.
+			[PoolIntArray] of integers used as indices referencing vertices, colors, normals, tangents, and textures. All of those arrays must have the same number of elements as the vertex array. No index can be beyond the vertex array size. When this index array is present, it puts the function into "index mode," where the index selects the *i*'th vertex, normal, tangent, color, UV, etc. This means if you want to have different normals or colors along an edge, you have to duplicate the vertices.
 			For triangles, the index array is interpreted as triples, referring to the vertices of each triangle. For lines, the index array is in pairs indicating the start and end of each line.
 		</constant>
 		<constant name="ARRAY_MAX" value="9" enum="ArrayType">
diff --git a/doc/classes/AtlasTexture.xml b/doc/classes/AtlasTexture.xml
index 3f5eb892af..e573512f5a 100644
--- a/doc/classes/AtlasTexture.xml
+++ b/doc/classes/AtlasTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AtlasTexture" inherits="Texture" category="Core" version="3.1">
+<class name="AtlasTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		Packs multiple small textures in a single, bigger one. Helps to optimize video memory costs and render calls.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioBusLayout.xml b/doc/classes/AudioBusLayout.xml
index f122906167..771e0390d3 100644
--- a/doc/classes/AudioBusLayout.xml
+++ b/doc/classes/AudioBusLayout.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioBusLayout" inherits="Resource" category="Core" version="3.1">
+<class name="AudioBusLayout" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Stores information about the audiobusses.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffect.xml b/doc/classes/AudioEffect.xml
index acbc96e70e..7c21d04b03 100644
--- a/doc/classes/AudioEffect.xml
+++ b/doc/classes/AudioEffect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffect" inherits="Resource" category="Core" version="3.1">
+<class name="AudioEffect" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Audio Effect For Audio.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectAmplify.xml b/doc/classes/AudioEffectAmplify.xml
index 3582ddc4f7..9fd3e73b12 100644
--- a/doc/classes/AudioEffectAmplify.xml
+++ b/doc/classes/AudioEffectAmplify.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectAmplify" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectAmplify" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Amplify audio effect to an Audio bus.
 		Increases or decreases the volume of the selected audio bus.
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectBandLimitFilter.xml b/doc/classes/AudioEffectBandLimitFilter.xml
index c9ddbd5b9a..1b511dfab0 100644
--- a/doc/classes/AudioEffectBandLimitFilter.xml
+++ b/doc/classes/AudioEffectBandLimitFilter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectBandLimitFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectBandLimitFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 		Adds a band limit filter to the Audio Bus.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectBandPassFilter.xml b/doc/classes/AudioEffectBandPassFilter.xml
index 7f4c9f4632..8df922da3a 100644
--- a/doc/classes/AudioEffectBandPassFilter.xml
+++ b/doc/classes/AudioEffectBandPassFilter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectBandPassFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectBandPassFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 		Adds a band pass filter to the Audio Bus.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectChorus.xml b/doc/classes/AudioEffectChorus.xml
index 43e14b3964..f85755df08 100644
--- a/doc/classes/AudioEffectChorus.xml
+++ b/doc/classes/AudioEffectChorus.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectChorus" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectChorus" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a chorus audio effect.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectCompressor.xml b/doc/classes/AudioEffectCompressor.xml
index fa81bcf030..78b8047987 100644
--- a/doc/classes/AudioEffectCompressor.xml
+++ b/doc/classes/AudioEffectCompressor.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectCompressor" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectCompressor" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Compressor audio effect to an Audio bus.
 		Reduces sounds that exceed a certain threshold level, smooths out the dynamics and increases the overall volume.
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectDelay.xml b/doc/classes/AudioEffectDelay.xml
index 872b94a0cd..0e19a4a89f 100644
--- a/doc/classes/AudioEffectDelay.xml
+++ b/doc/classes/AudioEffectDelay.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectDelay" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectDelay" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Delay audio effect to an Audio bus. Plays input signal back after a period of time.
 		Two tap delay and feedback options.
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectDistortion.xml b/doc/classes/AudioEffectDistortion.xml
index 74d12df554..4393f942f0 100644
--- a/doc/classes/AudioEffectDistortion.xml
+++ b/doc/classes/AudioEffectDistortion.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectDistortion" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectDistortion" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Distortion audio effect to an Audio bus.
 		Modify the sound to make it dirty.
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectEQ.xml b/doc/classes/AudioEffectEQ.xml
index 35a6f7557d..fef3868d02 100644
--- a/doc/classes/AudioEffectEQ.xml
+++ b/doc/classes/AudioEffectEQ.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectEQ" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectEQ" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Base class for audio equalizers. Gives you control over frequencies.
 		Use it to create a custom equalizer if [AudioEffectEQ6], [AudioEffectEQ10] or [AudioEffectEQ21] don't fit your needs.
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_band_count" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/AudioEffectEQ10.xml b/doc/classes/AudioEffectEQ10.xml
index daca342ace..e9fd0d72cb 100644
--- a/doc/classes/AudioEffectEQ10.xml
+++ b/doc/classes/AudioEffectEQ10.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectEQ10" inherits="AudioEffectEQ" category="Core" version="3.1">
+<class name="AudioEffectEQ10" inherits="AudioEffectEQ" category="Core" version="3.2">
 	<brief_description>
 		Adds a 10-band equalizer audio effect to an Audio bus. Gives you control over frequencies from 31 Hz to 16000 Hz.
 		Each frequency can be modulated between -60/+24 dB.
@@ -20,8 +20,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectEQ21.xml b/doc/classes/AudioEffectEQ21.xml
index 99d35604fc..d1b39d9824 100644
--- a/doc/classes/AudioEffectEQ21.xml
+++ b/doc/classes/AudioEffectEQ21.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectEQ21" inherits="AudioEffectEQ" category="Core" version="3.1">
+<class name="AudioEffectEQ21" inherits="AudioEffectEQ" category="Core" version="3.2">
 	<brief_description>
 		Adds a 21-band equalizer audio effect to an Audio bus. Gives you control over frequencies from 22 Hz to 22000 Hz.
 		Each frequency can be modulated between -60/+24 dB.
@@ -31,8 +31,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectEQ6.xml b/doc/classes/AudioEffectEQ6.xml
index 047c4c960f..d40471dbd6 100644
--- a/doc/classes/AudioEffectEQ6.xml
+++ b/doc/classes/AudioEffectEQ6.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectEQ6" inherits="AudioEffectEQ" category="Core" version="3.1">
+<class name="AudioEffectEQ6" inherits="AudioEffectEQ" category="Core" version="3.2">
 	<brief_description>
 		Adds a 6-band equalizer audio effect to an Audio bus. Gives you control over frequencies from 32 Hz to 10000 Hz.
 		Each frequency can be modulated between -60/+24 dB.
@@ -16,8 +16,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectFilter.xml b/doc/classes/AudioEffectFilter.xml
index 5a86c092a0..5ed4ae28db 100644
--- a/doc/classes/AudioEffectFilter.xml
+++ b/doc/classes/AudioEffectFilter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectFilter" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectFilter" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a filter to the Audio Bus.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectHighPassFilter.xml b/doc/classes/AudioEffectHighPassFilter.xml
index 6c97199cb9..3a486acab8 100644
--- a/doc/classes/AudioEffectHighPassFilter.xml
+++ b/doc/classes/AudioEffectHighPassFilter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectHighPassFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectHighPassFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 		Adds a high pass filter to the Audio Bus.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectHighShelfFilter.xml b/doc/classes/AudioEffectHighShelfFilter.xml
index ca2312ba6a..cccd18afcc 100644
--- a/doc/classes/AudioEffectHighShelfFilter.xml
+++ b/doc/classes/AudioEffectHighShelfFilter.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectHighShelfFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectHighShelfFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectInstance.xml b/doc/classes/AudioEffectInstance.xml
new file mode 100644
index 0000000000..eb8bcfdf2a
--- /dev/null
+++ b/doc/classes/AudioEffectInstance.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AudioEffectInstance" inherits="Reference" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/AudioEffectLimiter.xml b/doc/classes/AudioEffectLimiter.xml
index 5c5c55d17b..c17816bb87 100644
--- a/doc/classes/AudioEffectLimiter.xml
+++ b/doc/classes/AudioEffectLimiter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectLimiter" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectLimiter" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a soft clip Limiter audio effect to an Audio bus.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectLowPassFilter.xml b/doc/classes/AudioEffectLowPassFilter.xml
index 7048a56e6c..9402045150 100644
--- a/doc/classes/AudioEffectLowPassFilter.xml
+++ b/doc/classes/AudioEffectLowPassFilter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectLowPassFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectLowPassFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 		Adds a low pass filter to the Audio Bus.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectLowShelfFilter.xml b/doc/classes/AudioEffectLowShelfFilter.xml
index aadbf30eaa..1e60e637fc 100644
--- a/doc/classes/AudioEffectLowShelfFilter.xml
+++ b/doc/classes/AudioEffectLowShelfFilter.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectLowShelfFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectLowShelfFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectNotchFilter.xml b/doc/classes/AudioEffectNotchFilter.xml
index 0378934890..00e950b43a 100644
--- a/doc/classes/AudioEffectNotchFilter.xml
+++ b/doc/classes/AudioEffectNotchFilter.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectNotchFilter" inherits="AudioEffectFilter" category="Core" version="3.1">
+<class name="AudioEffectNotchFilter" inherits="AudioEffectFilter" category="Core" version="3.2">
 	<brief_description>
 		Adds a notch filter to the Audio Bus.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioEffectPanner.xml b/doc/classes/AudioEffectPanner.xml
index cbd14de905..7d01a73b0b 100644
--- a/doc/classes/AudioEffectPanner.xml
+++ b/doc/classes/AudioEffectPanner.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectPanner" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectPanner" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Panner audio effect to an Audio bus. Pans sound left or right.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectPhaser.xml b/doc/classes/AudioEffectPhaser.xml
index 10566d089b..c42b5f59ee 100644
--- a/doc/classes/AudioEffectPhaser.xml
+++ b/doc/classes/AudioEffectPhaser.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectPhaser" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectPhaser" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Phaser audio effect to an Audio bus.
 		Combines the original signal with a copy that is slightly out of phase with the original.
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectPitchShift.xml b/doc/classes/AudioEffectPitchShift.xml
index 99095bae44..7d6c5f2b20 100644
--- a/doc/classes/AudioEffectPitchShift.xml
+++ b/doc/classes/AudioEffectPitchShift.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectPitchShift" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectPitchShift" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Pitch shift audio effect to an Audio bus.
 		Raises or lowers the pitch of original sound.
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectRecord.xml b/doc/classes/AudioEffectRecord.xml
index b7771fc9c5..d6e678f276 100644
--- a/doc/classes/AudioEffectRecord.xml
+++ b/doc/classes/AudioEffectRecord.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectRecord" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectRecord" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_recording" qualifiers="const">
 			<return type="AudioStreamSample">
diff --git a/doc/classes/AudioEffectReverb.xml b/doc/classes/AudioEffectReverb.xml
index 008c644466..fde22c9238 100644
--- a/doc/classes/AudioEffectReverb.xml
+++ b/doc/classes/AudioEffectReverb.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectReverb" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectReverb" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 		Adds a Reverb audio effect to an Audio bus.
 		Simulates the sound of acoustic environments such as rooms, concert halls, caverns, or an open spaces.
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioEffectSpectrumAnalyzer.xml b/doc/classes/AudioEffectSpectrumAnalyzer.xml
new file mode 100644
index 0000000000..8a71991437
--- /dev/null
+++ b/doc/classes/AudioEffectSpectrumAnalyzer.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AudioEffectSpectrumAnalyzer" inherits="AudioEffect" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="buffer_length" type="float" setter="set_buffer_length" getter="get_buffer_length">
+		</member>
+		<member name="fft_size" type="int" setter="set_fft_size" getter="get_fft_size" enum="AudioEffectSpectrumAnalyzer.FFT_Size">
+		</member>
+		<member name="tap_back_pos" type="float" setter="set_tap_back_pos" getter="get_tap_back_pos">
+		</member>
+	</members>
+	<constants>
+		<constant name="FFT_SIZE_256" value="0" enum="FFT_Size">
+		</constant>
+		<constant name="FFT_SIZE_512" value="1" enum="FFT_Size">
+		</constant>
+		<constant name="FFT_SIZE_1024" value="2" enum="FFT_Size">
+		</constant>
+		<constant name="FFT_SIZE_2048" value="3" enum="FFT_Size">
+		</constant>
+		<constant name="FFT_SIZE_4096" value="4" enum="FFT_Size">
+		</constant>
+		<constant name="FFT_SIZE_MAX" value="5" enum="FFT_Size">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/AudioEffectSpectrumAnalyzerInstance.xml b/doc/classes/AudioEffectSpectrumAnalyzerInstance.xml
new file mode 100644
index 0000000000..f4620f9905
--- /dev/null
+++ b/doc/classes/AudioEffectSpectrumAnalyzerInstance.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AudioEffectSpectrumAnalyzerInstance" inherits="AudioEffectInstance" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="get_magnitude_for_frequency_range" qualifiers="const">
+			<return type="Vector2">
+			</return>
+			<argument index="0" name="from_hz" type="float">
+			</argument>
+			<argument index="1" name="to_hz" type="float">
+			</argument>
+			<argument index="2" name="mode" type="int" enum="AudioEffectSpectrumAnalyzerInstance.MagnitudeMode" default="1">
+			</argument>
+			<description>
+			</description>
+		</method>
+	</methods>
+	<constants>
+		<constant name="MAGNITUDE_AVERAGE" value="0" enum="MagnitudeMode">
+		</constant>
+		<constant name="MAGNITUDE_MAX" value="1" enum="MagnitudeMode">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/AudioEffectStereoEnhance.xml b/doc/classes/AudioEffectStereoEnhance.xml
index ae296d81a0..95bc6128f2 100644
--- a/doc/classes/AudioEffectStereoEnhance.xml
+++ b/doc/classes/AudioEffectStereoEnhance.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioEffectStereoEnhance" inherits="AudioEffect" category="Core" version="3.1">
+<class name="AudioEffectStereoEnhance" inherits="AudioEffect" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioServer.xml b/doc/classes/AudioServer.xml
index eb3c7cb3b4..6dc1600cf2 100644
--- a/doc/classes/AudioServer.xml
+++ b/doc/classes/AudioServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioServer" inherits="Object" category="Core" version="3.1">
+<class name="AudioServer" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Server interface for low level audio access.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/audio/audio_buses.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_bus">
 			<return type="void">
@@ -97,6 +95,18 @@
 				Returns the number of effects on the bus at [code]bus_idx[/code].
 			</description>
 		</method>
+		<method name="get_bus_effect_instance">
+			<return type="AudioEffectInstance">
+			</return>
+			<argument index="0" name="bus_idx" type="int">
+			</argument>
+			<argument index="1" name="effect_idx" type="int">
+			</argument>
+			<argument index="2" name="channel" type="int" default="0">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="get_bus_index" qualifiers="const">
 			<return type="int">
 			</return>
@@ -174,6 +184,12 @@
 				Returns the sample rate at the output of the audioserver.
 			</description>
 		</method>
+		<method name="get_output_latency" qualifiers="const">
+			<return type="float">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_speaker_mode" qualifiers="const">
 			<return type="int" enum="AudioServer.SpeakerMode">
 			</return>
@@ -181,6 +197,18 @@
 				Returns the speaker configuration.
 			</description>
 		</method>
+		<method name="get_time_since_last_mix" qualifiers="const">
+			<return type="float">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="get_time_to_next_mix" qualifiers="const">
+			<return type="float">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="is_bus_bypassing_effects" qualifiers="const">
 			<return type="bool">
 			</return>
diff --git a/doc/classes/AudioStream.xml b/doc/classes/AudioStream.xml
index c0a16adda9..15662b7eff 100644
--- a/doc/classes/AudioStream.xml
+++ b/doc/classes/AudioStream.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStream" inherits="Resource" category="Core" version="3.1">
+<class name="AudioStream" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Base class for audio streams.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/audio/audio_streams.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_length" qualifiers="const">
 			<return type="float">
diff --git a/doc/classes/AudioStreamGenerator.xml b/doc/classes/AudioStreamGenerator.xml
new file mode 100644
index 0000000000..ab06ddd710
--- /dev/null
+++ b/doc/classes/AudioStreamGenerator.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AudioStreamGenerator" inherits="AudioStream" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="buffer_length" type="float" setter="set_buffer_length" getter="get_buffer_length">
+		</member>
+		<member name="mix_rate" type="float" setter="set_mix_rate" getter="get_mix_rate">
+		</member>
+	</members>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/AudioStreamGeneratorPlayback.xml b/doc/classes/AudioStreamGeneratorPlayback.xml
new file mode 100644
index 0000000000..310b58c4e5
--- /dev/null
+++ b/doc/classes/AudioStreamGeneratorPlayback.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AudioStreamGeneratorPlayback" inherits="AudioStreamPlaybackResampled" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="can_push_buffer" qualifiers="const">
+			<return type="bool">
+			</return>
+			<argument index="0" name="amount" type="int">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="clear_buffer">
+			<return type="void">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="get_frames_available" qualifiers="const">
+			<return type="int">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="get_skips" qualifiers="const">
+			<return type="int">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="push_buffer">
+			<return type="bool">
+			</return>
+			<argument index="0" name="frames" type="PoolVector2Array">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="push_frame">
+			<return type="bool">
+			</return>
+			<argument index="0" name="frame" type="Vector2">
+			</argument>
+			<description>
+			</description>
+		</method>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/AudioStreamMicrophone.xml b/doc/classes/AudioStreamMicrophone.xml
index 079555d17e..afa60655ea 100644
--- a/doc/classes/AudioStreamMicrophone.xml
+++ b/doc/classes/AudioStreamMicrophone.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamMicrophone" inherits="AudioStream" category="Core" version="3.1">
+<class name="AudioStreamMicrophone" inherits="AudioStream" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioStreamPlayback.xml b/doc/classes/AudioStreamPlayback.xml
index 0960935ad9..773a396bc4 100644
--- a/doc/classes/AudioStreamPlayback.xml
+++ b/doc/classes/AudioStreamPlayback.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamPlayback" inherits="Reference" category="Core" version="3.1">
+<class name="AudioStreamPlayback" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Meta class for playing back audio.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/AudioStreamPlaybackResampled.xml b/doc/classes/AudioStreamPlaybackResampled.xml
new file mode 100644
index 0000000000..07e7e70bf1
--- /dev/null
+++ b/doc/classes/AudioStreamPlaybackResampled.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="AudioStreamPlaybackResampled" inherits="AudioStreamPlayback" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/AudioStreamPlayer.xml b/doc/classes/AudioStreamPlayer.xml
index e880fc1323..c6ec45f15e 100644
--- a/doc/classes/AudioStreamPlayer.xml
+++ b/doc/classes/AudioStreamPlayer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamPlayer" inherits="Node" category="Core" version="3.1">
+<class name="AudioStreamPlayer" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Plays back audio.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/audio/audio_streams.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_playback_position">
 			<return type="float">
@@ -19,6 +17,12 @@
 				Returns the position in the [AudioStream] in seconds.
 			</description>
 		</method>
+		<method name="get_stream_playback">
+			<return type="AudioStreamPlayback">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="play">
 			<return type="void">
 			</return>
diff --git a/doc/classes/AudioStreamPlayer2D.xml b/doc/classes/AudioStreamPlayer2D.xml
index 28754f8695..51bf5e7574 100644
--- a/doc/classes/AudioStreamPlayer2D.xml
+++ b/doc/classes/AudioStreamPlayer2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamPlayer2D" inherits="Node2D" category="Core" version="3.1">
+<class name="AudioStreamPlayer2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Plays audio in 2D.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/audio/audio_streams.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_playback_position">
 			<return type="float">
@@ -19,6 +17,12 @@
 				Returns the position in the [AudioStream].
 			</description>
 		</method>
+		<method name="get_stream_playback">
+			<return type="AudioStreamPlayback">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="play">
 			<return type="void">
 			</return>
diff --git a/doc/classes/AudioStreamPlayer3D.xml b/doc/classes/AudioStreamPlayer3D.xml
index a0260d8261..2bd3ac1eaa 100644
--- a/doc/classes/AudioStreamPlayer3D.xml
+++ b/doc/classes/AudioStreamPlayer3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamPlayer3D" inherits="Spatial" category="Core" version="3.1">
+<class name="AudioStreamPlayer3D" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Plays 3D sound in 3D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/audio/audio_streams.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_playback_position">
 			<return type="float">
@@ -19,6 +17,12 @@
 				Returns the position in the [AudioStream].
 			</description>
 		</method>
+		<method name="get_stream_playback">
+			<return type="AudioStreamPlayback">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="play">
 			<return type="void">
 			</return>
@@ -56,7 +60,7 @@
 			Amount how much the filter affects the loudness, in dB.
 		</member>
 		<member name="attenuation_model" type="int" setter="set_attenuation_model" getter="get_attenuation_model" enum="AudioStreamPlayer3D.AttenuationModel">
-			Decides if audio should get quieter with distance linearly, quadratically or logarithmically.
+			Decides if audio should get quieter with distance linearly, quadratically, logarithmically, or not be affected by distance, effectively disabling attenuation.
 		</member>
 		<member name="autoplay" type="bool" setter="set_autoplay" getter="is_autoplay_enabled">
 			If [code]true[/code], audio plays when added to scene tree. Default value: [code]false[/code].
@@ -120,6 +124,9 @@
 		<constant name="ATTENUATION_LOGARITHMIC" value="2" enum="AttenuationModel">
 			Logarithmic dampening of loudness according to distance.
 		</constant>
+		<constant name="ATTENUATION_DISABLED" value="3" enum="AttenuationModel">
+			No dampening of loudness according to distance.
+		</constant>
 		<constant name="OUT_OF_RANGE_MIX" value="0" enum="OutOfRangeMode">
 			Mix this audio in, even when it's out of range.
 		</constant>
diff --git a/doc/classes/AudioStreamRandomPitch.xml b/doc/classes/AudioStreamRandomPitch.xml
index 992c731d47..49aa5a0192 100644
--- a/doc/classes/AudioStreamRandomPitch.xml
+++ b/doc/classes/AudioStreamRandomPitch.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamRandomPitch" inherits="AudioStream" category="Core" version="3.1">
+<class name="AudioStreamRandomPitch" inherits="AudioStream" category="Core" version="3.2">
 	<brief_description>
 		Plays audio with random pitch tweaking.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/AudioStreamSample.xml b/doc/classes/AudioStreamSample.xml
index fdaa942018..e23080c9d3 100644
--- a/doc/classes/AudioStreamSample.xml
+++ b/doc/classes/AudioStreamSample.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamSample" inherits="AudioStream" category="Core" version="3.1">
+<class name="AudioStreamSample" inherits="AudioStream" category="Core" version="3.2">
 	<brief_description>
 		Plays audio.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="save_to_wav">
 			<return type="int" enum="Error">
diff --git a/doc/classes/BackBufferCopy.xml b/doc/classes/BackBufferCopy.xml
index 62c97feaf9..65e8774c59 100644
--- a/doc/classes/BackBufferCopy.xml
+++ b/doc/classes/BackBufferCopy.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BackBufferCopy" inherits="Node2D" category="Core" version="3.1">
+<class name="BackBufferCopy" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Copies a region of the screen (or the whole screen) to a buffer so it can be accessed with [code]SCREEN_TEXTURE[/code] in the [code]texture()[/code] function.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/BakedLightmap.xml b/doc/classes/BakedLightmap.xml
index d376bf667f..735e55cd39 100644
--- a/doc/classes/BakedLightmap.xml
+++ b/doc/classes/BakedLightmap.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BakedLightmap" inherits="VisualInstance" category="Core" version="3.1">
+<class name="BakedLightmap" inherits="VisualInstance" category="Core" version="3.2">
 	<brief_description>
 		Prerendered indirect light map for a scene.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/baked_lightmaps.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="bake">
 			<return type="int" enum="BakedLightmap.BakeError">
diff --git a/doc/classes/BakedLightmapData.xml b/doc/classes/BakedLightmapData.xml
index 8ee10b0b8b..75f3187434 100644
--- a/doc/classes/BakedLightmapData.xml
+++ b/doc/classes/BakedLightmapData.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BakedLightmapData" inherits="Resource" category="Core" version="3.1">
+<class name="BakedLightmapData" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_user">
 			<return type="void">
diff --git a/doc/classes/BaseButton.xml b/doc/classes/BaseButton.xml
index ff3e22ba26..c65d545f3e 100644
--- a/doc/classes/BaseButton.xml
+++ b/doc/classes/BaseButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BaseButton" inherits="Control" category="Core" version="3.1">
+<class name="BaseButton" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Base class for different kinds of buttons.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_pressed" qualifiers="virtual">
 			<return type="void">
@@ -38,7 +36,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return true if the mouse has entered the button and has not left it yet.
+				Return [code]true[/code] if the mouse has entered the button and has not left it yet.
 			</description>
 		</method>
 	</methods>
@@ -48,7 +46,7 @@
 		</member>
 		<member name="button_mask" type="int" setter="set_button_mask" getter="get_button_mask">
 			Binary mask to choose which mouse buttons this button will respond to.
-			To allow both left-click and right-click, set this to 3, because it's BUTTON_MASK_LEFT | BUTTON_MASK_RIGHT.
+			To allow both left-click and right-click, use [code]BUTTON_MASK_LEFT | BUTTON_MASK_RIGHT[/code].
 		</member>
 		<member name="disabled" type="bool" setter="set_disabled" getter="is_disabled">
 			If [code]true[/code], the button is in disabled state and can't be clicked or toggled.
@@ -71,6 +69,9 @@
 		<member name="toggle_mode" type="bool" setter="set_toggle_mode" getter="is_toggle_mode">
 			If [code]true[/code], the button is in toggle mode. Makes the button flip state between pressed and unpressed each time its area is clicked.
 		</member>
+		<member name="keep_pressed_outside" type="bool" setter="set_keep_pressed_outside" getter="is_keep_pressed_outside">
+			If [code]true[/code], the button stays pressed when moving the cursor outside the button while pressing it. Default value: [code]false[/code].
+		</member>
 	</members>
 	<signals>
 		<signal name="button_down">
diff --git a/doc/classes/Basis.xml b/doc/classes/Basis.xml
index b96daed6fc..cee3035eab 100644
--- a/doc/classes/Basis.xml
+++ b/doc/classes/Basis.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Basis" category="Built-In Types" version="3.1">
+<class name="Basis" category="Built-In Types" version="3.2">
 	<brief_description>
 		3x3 matrix datatype.
 	</brief_description>
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/using_transforms.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Basis">
 			<return type="Basis">
@@ -76,6 +74,12 @@
 				This function considers a discretization of rotations into 24 points on unit sphere, lying along the vectors (x,y,z) with each component being either -1,0 or 1, and returns the index of the point best representing the orientation of the object. It is mainly used by the grid map editor. For further details, refer to Godot source code.
 			</description>
 		</method>
+		<method name="get_rotation_quat">
+			<return type="Quat">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_scale">
 			<return type="Vector3">
 			</return>
@@ -90,6 +94,16 @@
 				Return the inverse of the matrix.
 			</description>
 		</method>
+		<method name="is_equal_approx">
+			<return type="bool">
+			</return>
+			<argument index="0" name="b" type="Basis">
+			</argument>
+			<argument index="1" name="epsilon" type="float" default="0.00001">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="orthonormalized">
 			<return type="Basis">
 			</return>
diff --git a/doc/classes/BitMap.xml b/doc/classes/BitMap.xml
index 4b7f8007ca..7f03c22b70 100644
--- a/doc/classes/BitMap.xml
+++ b/doc/classes/BitMap.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BitMap" inherits="Resource" category="Core" version="3.1">
+<class name="BitMap" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Boolean matrix.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="create">
 			<return type="void">
@@ -17,7 +15,7 @@
 			<argument index="0" name="size" type="Vector2">
 			</argument>
 			<description>
-				Creates a bitmap with the specified size, filled with false.
+				Creates a bitmap with the specified size, filled with [code]false[/code].
 			</description>
 		</method>
 		<method name="create_from_image_alpha">
@@ -28,7 +26,7 @@
 			<argument index="1" name="threshold" type="float" default="0.1">
 			</argument>
 			<description>
-				Creates a bitmap that matches the given image dimensions, every element of the bitmap is set to false if the alpha value of the image at that position is equal to [code]threshold[/code] or less, and true in other case.
+				Creates a bitmap that matches the given image dimensions, every element of the bitmap is set to [code]false[/code] if the alpha value of the image at that position is equal to [code]threshold[/code] or less, and [code]true[/code] in other case.
 			</description>
 		</method>
 		<method name="get_bit" qualifiers="const">
@@ -51,7 +49,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Returns the amount of bitmap elements that are set to true.
+				Returns the amount of bitmap elements that are set to [code]true[/code].
 			</description>
 		</method>
 		<method name="grow_mask">
diff --git a/doc/classes/BitmapFont.xml b/doc/classes/BitmapFont.xml
index 8ed563be5b..149d92e870 100644
--- a/doc/classes/BitmapFont.xml
+++ b/doc/classes/BitmapFont.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BitmapFont" inherits="Font" category="Core" version="3.1">
+<class name="BitmapFont" inherits="Font" category="Core" version="3.2">
 	<brief_description>
 		Renders text using [code]*.fnt[/code] fonts.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_char">
 			<return type="void">
@@ -38,7 +36,7 @@
 			<argument index="2" name="kerning" type="int">
 			</argument>
 			<description>
-				Adds a kerning pair to the [code]BitmapFont[/code] as a difference. Kerning pairs are special cases where a typeface advance is determined by the next character.
+				Adds a kerning pair to the [BitmapFont] as a difference. Kerning pairs are special cases where a typeface advance is determined by the next character.
 			</description>
 		</method>
 		<method name="add_texture">
@@ -47,7 +45,7 @@
 			<argument index="0" name="texture" type="Texture">
 			</argument>
 			<description>
-				Adds a texture to the [code]BitmapFont[/code].
+				Adds a texture to the [BitmapFont].
 			</description>
 		</method>
 		<method name="clear">
diff --git a/doc/classes/Bone2D.xml b/doc/classes/Bone2D.xml
index 7e714305cd..59f7bec889 100644
--- a/doc/classes/Bone2D.xml
+++ b/doc/classes/Bone2D.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Bone2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Bone2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="apply_rest">
 			<return type="void">
diff --git a/doc/classes/BoneAttachment.xml b/doc/classes/BoneAttachment.xml
index a85453a415..109cac4fa3 100644
--- a/doc/classes/BoneAttachment.xml
+++ b/doc/classes/BoneAttachment.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BoneAttachment" inherits="Spatial" category="Core" version="3.1">
+<class name="BoneAttachment" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		A node that will attach to a bone.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/BoxContainer.xml b/doc/classes/BoxContainer.xml
index 3fbad58a24..9aa69e4164 100644
--- a/doc/classes/BoxContainer.xml
+++ b/doc/classes/BoxContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BoxContainer" inherits="Container" category="Core" version="3.1">
+<class name="BoxContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Base class for box containers.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_spacer">
 			<return type="void">
diff --git a/doc/classes/BoxShape.xml b/doc/classes/BoxShape.xml
index d98a188870..3678c0e393 100644
--- a/doc/classes/BoxShape.xml
+++ b/doc/classes/BoxShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BoxShape" inherits="Shape" category="Core" version="3.1">
+<class name="BoxShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Box shape resource.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Button.xml b/doc/classes/Button.xml
index 382a538f2b..5d3027e347 100644
--- a/doc/classes/Button.xml
+++ b/doc/classes/Button.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Button" inherits="BaseButton" category="Core" version="3.1">
+<class name="Button" inherits="BaseButton" category="Core" version="3.2">
 	<brief_description>
 		Standard themed Button.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ButtonGroup.xml b/doc/classes/ButtonGroup.xml
index 6273c8f83f..cd2a8d7307 100644
--- a/doc/classes/ButtonGroup.xml
+++ b/doc/classes/ButtonGroup.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ButtonGroup" inherits="Resource" category="Core" version="3.1">
+<class name="ButtonGroup" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Group of Buttons.
 	</brief_description>
@@ -9,14 +9,12 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_buttons">
 			<return type="Array">
 			</return>
 			<description>
-				Returns an [Array] of [Button]s who have this as their [code]ButtonGroup[/code] (see [member BaseButton.group]).
+				Returns an [Array] of [Button]s who have this as their [ButtonGroup] (see [member BaseButton.group]).
 			</description>
 		</method>
 		<method name="get_pressed_button">
diff --git a/doc/classes/CPUParticles.xml b/doc/classes/CPUParticles.xml
index 6db2acac43..599c067328 100644
--- a/doc/classes/CPUParticles.xml
+++ b/doc/classes/CPUParticles.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CPUParticles" inherits="GeometryInstance" category="Core" version="3.1">
+<class name="CPUParticles" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="convert_from_particles">
 			<return type="void">
diff --git a/doc/classes/CPUParticles2D.xml b/doc/classes/CPUParticles2D.xml
index 12a176589c..e1f71e3600 100644
--- a/doc/classes/CPUParticles2D.xml
+++ b/doc/classes/CPUParticles2D.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CPUParticles2D" inherits="Node2D" category="Core" version="3.1">
+<class name="CPUParticles2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="convert_from_particles">
 			<return type="void">
diff --git a/doc/classes/Camera.xml b/doc/classes/Camera.xml
index e56fb63dc5..05858e8bc6 100644
--- a/doc/classes/Camera.xml
+++ b/doc/classes/Camera.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Camera" inherits="Spatial" category="Core" version="3.1">
+<class name="Camera" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Camera node, displays from a point of view.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear_current">
 			<return type="void">
@@ -17,7 +15,7 @@
 			<argument index="0" name="enable_next" type="bool" default="true">
 			</argument>
 			<description>
-				If this is the current Camera, remove it from being current. If [code]enable_next[/code] is true, request to make the next Camera current, if any.
+				If this is the current Camera, remove it from being current. If [code]enable_next[/code] is [code]true[/code], request to make the next Camera current, if any.
 			</description>
 		</method>
 		<method name="get_camera_transform" qualifiers="const">
@@ -103,6 +101,20 @@
 			<description>
 			</description>
 		</method>
+		<method name="set_frustum">
+			<return type="void">
+			</return>
+			<argument index="0" name="size" type="float">
+			</argument>
+			<argument index="1" name="offset" type="Vector2">
+			</argument>
+			<argument index="2" name="z_near" type="float">
+			</argument>
+			<argument index="3" name="z_far" type="float">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="set_orthogonal">
 			<return type="void">
 			</return>
@@ -158,6 +170,8 @@
 		<member name="fov" type="float" setter="set_fov" getter="get_fov">
 			The camera's field of view angle (in degrees). Only applicable in perspective mode. Since [member keep_aspect] locks one axis, [code]fov[/code] sets the other axis' field of view angle.
 		</member>
+		<member name="frustum_offset" type="Vector2" setter="set_frustum_offset" getter="get_frustum_offset">
+		</member>
 		<member name="h_offset" type="float" setter="set_h_offset" getter="get_h_offset">
 			The horizontal (X) offset of the Camera viewport.
 		</member>
@@ -182,7 +196,9 @@
 			Perspective Projection (object's size on the screen becomes smaller when far away).
 		</constant>
 		<constant name="PROJECTION_ORTHOGONAL" value="1" enum="Projection">
-			Orthogonal Projection (objects remain the same size on the screen no matter how far away they are).
+			Orthogonal Projection (objects remain the same size on the screen no matter how far away they are; also known as orthographic projection).
+		</constant>
+		<constant name="PROJECTION_FRUSTUM" value="2" enum="Projection">
 		</constant>
 		<constant name="KEEP_WIDTH" value="0" enum="KeepAspect">
 			Preserves the horizontal aspect ratio.
diff --git a/doc/classes/Camera2D.xml b/doc/classes/Camera2D.xml
index fa907dd648..e5d1649c29 100644
--- a/doc/classes/Camera2D.xml
+++ b/doc/classes/Camera2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Camera2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Camera2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Camera node for 2D scenes.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="align">
 			<return type="void">
@@ -23,7 +21,7 @@
 			<return type="void">
 			</return>
 			<description>
-				Removes any [code]Camera2D[/code] from the ancestor [Viewport]'s internal currently-assigned camera.
+				Removes any [Camera2D] from the ancestor [Viewport]'s internal currently-assigned camera.
 			</description>
 		</method>
 		<method name="force_update_scroll">
@@ -44,7 +42,7 @@
 			<return type="Vector2">
 			</return>
 			<description>
-				Returns the location of the [code]Camera2D[/code]'s screen-center, relative to the origin.
+				Returns the location of the [Camera2D]'s screen-center, relative to the origin.
 			</description>
 		</method>
 		<method name="make_current">
@@ -71,7 +69,7 @@
 			If [code]true[/code], the camera is the active camera for the current scene. Only one camera can be current, so setting a different camera [code]current[/code] will disable this one.
 		</member>
 		<member name="custom_viewport" type="Node" setter="set_custom_viewport" getter="get_custom_viewport">
-			The custom [Viewport] node attached to the [code]Camera2D[/code]. If null or not a [Viewport], uses the default viewport instead.
+			The custom [Viewport] node attached to the [Camera2D]. If null or not a [Viewport], uses the default viewport instead.
 		</member>
 		<member name="drag_margin_bottom" type="float" setter="set_drag_margin" getter="get_drag_margin">
 			Bottom margin needed to drag the camera. A value of [code]1[/code] makes the camera move only when reaching the edge of the screen.
diff --git a/doc/classes/CanvasItem.xml b/doc/classes/CanvasItem.xml
index 0ec28f93a7..8ba3990933 100644
--- a/doc/classes/CanvasItem.xml
+++ b/doc/classes/CanvasItem.xml
@@ -1,21 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CanvasItem" inherits="Node" category="Core" version="3.1">
+<class name="CanvasItem" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Base class of anything 2D.
 	</brief_description>
 	<description>
-		Base class of anything 2D. Canvas items are laid out in a tree and children inherit and extend the transform of their parent. CanvasItem is extended by [Control], for anything GUI related, and by [Node2D] for anything 2D engine related.
-		Any CanvasItem can draw. For this, the "update" function must be called, then NOTIFICATION_DRAW will be received on idle time to request redraw. Because of this, canvas items don't need to be redraw on every frame, improving the performance significantly. Several functions for drawing on the CanvasItem are provided (see draw_* functions). They can only be used inside the notification, signal or _draw() overrides function, though.
-		Canvas items are draw in tree order. By default, children are on top of their parents so a root CanvasItem will be drawn behind everything (this can be changed per item though).
-		Canvas items can also be hidden (hiding also their subtree). They provide many means for changing standard parameters such as opacity (for it and the subtree) and self opacity, blend mode.
+		Base class of anything 2D. Canvas items are laid out in a tree; children inherit and extend their parent's transform. CanvasItem is extended by [Control] for anything GUI-related, and by [Node2D] for anything related to the 2D engine.
+		Any CanvasItem can draw. For this, [method update] must be called, then [constant NOTIFICATION_DRAW] will be received on idle time to request redraw. Because of this, canvas items don't need to be redrawn on every frame, improving the performance significantly. Several functions for drawing on the CanvasItem are provided (see [code]draw_*[/code] functions). However, they can only be used inside the [method Object._notification], signal or [method _draw] virtual functions.
+		Canvas items are drawn in tree order. By default, children are on top of their parents so a root CanvasItem will be drawn behind everything. This behavior can be changed on a per-item basis.
+		A CanvasItem can also be hidden, which will also hide its children. It provides many ways to change parameters such as modulation (for itself and its children) and self modulation (only for itself), as well as its blend mode.
 		Ultimately, a transform notification can be requested, which will notify the node that its global position changed in case the parent tree changed.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/2d_transforms.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/custom_drawing_in_2d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_draw" qualifiers="virtual">
 			<return type="void">
@@ -38,7 +36,7 @@
 			<argument index="4" name="modulate" type="Color" default="Color( 1, 1, 1, 1 )">
 			</argument>
 			<description>
-				Draws a string character using a custom font. Returns the advance, depending on the char width and kerning with an optional next char.
+				Draws a string character using a custom font. Returns the advance, depending on the character width and kerning with an optional next character.
 			</description>
 		</method>
 		<method name="draw_circle">
@@ -99,6 +97,10 @@
 			</argument>
 			<argument index="2" name="normal_map" type="Texture" default="null">
 			</argument>
+			<argument index="3" name="transform" type="Transform2D" default="Transform2D( 1, 0, 0, 1, 0, 0 )">
+			</argument>
+			<argument index="4" name="modulate" type="Color" default="Color( 1, 1, 1, 1 )">
+			</argument>
 			<description>
 			</description>
 		</method>
@@ -114,7 +116,7 @@
 			<argument index="3" name="antialiased" type="bool" default="false">
 			</argument>
 			<description>
-				Draws multiple, parallel lines with a uniform [code]color[/code] and [code]width[/code] and optional antialiasing.
+				Draws multiple, parallel lines with a uniform [code]color[/code]. [code]width[/code] and [code]antialiased[/code] are currently not implemented and have no effect.
 			</description>
 		</method>
 		<method name="draw_multiline_colors">
@@ -209,7 +211,7 @@
 			<argument index="5" name="normal_map" type="Texture" default="null">
 			</argument>
 			<description>
-				Draws a custom primitive, 1 point for a point, 2 points for a line, 3 points for a triangle and 4 points for a quad.
+				Draws a custom primitive. 1 point for a point, 2 points for a line, 3 points for a triangle and 4 points for a quad.
 			</description>
 		</method>
 		<method name="draw_rect">
@@ -306,7 +308,7 @@
 			<argument index="5" name="normal_map" type="Texture" default="null">
 			</argument>
 			<description>
-				Draws a textured rectangle at a given position, optionally modulated by a color. Transpose swaps the x and y coordinates when reading the texture.
+				Draws a textured rectangle at a given position, optionally modulated by a color. If [code]transpose[/code] is [code]true[/code], the texture will have its X and Y coordinates swapped.
 			</description>
 		</method>
 		<method name="draw_texture_rect_region">
@@ -327,7 +329,7 @@
 			<argument index="6" name="clip_uv" type="bool" default="true">
 			</argument>
 			<description>
-				Draws a textured rectangle region at a given position, optionally modulated by a color. Transpose swaps the x and y coordinates when reading the texture.
+				Draws a textured rectangle region at a given position, optionally modulated by a color. If [code]transpose[/code] is [code]true[/code], the texture will have its X and Y coordinates swapped.
 			</description>
 		</method>
 		<method name="force_update_transform">
@@ -417,7 +419,7 @@
 			<return type="void">
 			</return>
 			<description>
-				Hide the CanvasItem currently visible.
+				Hide the CanvasItem if it's currently visible.
 			</description>
 		</method>
 		<method name="is_local_transform_notification_enabled" qualifiers="const">
@@ -431,7 +433,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return if set as toplevel. See [method set_as_toplevel].
+				Returns [code]true[/code] if the node is set as top-level. See [method set_as_toplevel].
 			</description>
 		</method>
 		<method name="is_transform_notification_enabled" qualifiers="const">
@@ -472,7 +474,7 @@
 			<argument index="0" name="enable" type="bool">
 			</argument>
 			<description>
-				Sets as top level. This means that it will not inherit transform from parent canvas items.
+				If [code]enable[/code] is [code]true[/code], the node won't inherit its transform from parent canvas items.
 			</description>
 		</method>
 		<method name="set_notify_local_transform">
@@ -497,29 +499,29 @@
 			<return type="void">
 			</return>
 			<description>
-				Show the CanvasItem currently hidden. For controls that inherit [Popup], the correct way to make them visible is to call one of the multiple popup*() functions instead.
+				Show the CanvasItem if it's currently hidden. For controls that inherit [Popup], the correct way to make them visible is to call one of the multiple [code]popup*()[/code] functions instead.
 			</description>
 		</method>
 		<method name="update">
 			<return type="void">
 			</return>
 			<description>
-				Queue the CanvasItem for update. [code]NOTIFICATION_DRAW[/code] will be called on idle time to request redraw.
+				Queue the CanvasItem for update. [constant NOTIFICATION_DRAW] will be called on idle time to request redraw.
 			</description>
 		</method>
 	</methods>
 	<members>
 		<member name="light_mask" type="int" setter="set_light_mask" getter="get_light_mask">
-			The rendering layers in which this [code]CanvasItem[/code] responds to [Light2D] nodes. Default value: [code]1[/code].
+			The rendering layers in which this [CanvasItem] responds to [Light2D] nodes. Default value: [code]1[/code].
 		</member>
 		<member name="material" type="Material" setter="set_material" getter="get_material">
-			The material applied to textures on this [code]CanvasItem[/code]. Default value: [code]null[/code].
+			The material applied to textures on this [CanvasItem]. Default value: [code]null[/code].
 		</member>
 		<member name="modulate" type="Color" setter="set_modulate" getter="get_modulate">
-			The color applied to textures on this [code]CanvasItem[/code]. Default value: [code]Color(1, 1, 1, 1)[/code] (opaque "white").
+			The color applied to textures on this [CanvasItem]. Default value: [code]Color(1, 1, 1, 1)[/code] (opaque "white").
 		</member>
 		<member name="self_modulate" type="Color" setter="set_self_modulate" getter="get_self_modulate">
-			The color applied to textures on this [code]CanvasItem[/code]. This is not inherited by children [code]CanvasItem[/code]s. Default value: [code]Color(1, 1, 1, 1)[/code] (opaque "white")..
+			The color applied to textures on this [CanvasItem]. This is not inherited by children [CanvasItem]s. Default value: [code]Color(1, 1, 1, 1)[/code] (opaque "white")..
 		</member>
 		<member name="show_behind_parent" type="bool" setter="set_draw_behind_parent" getter="is_draw_behind_parent_enabled">
 			If [code]true[/code], the object draws behind its parent. Default value: [code]false[/code].
@@ -528,10 +530,10 @@
 			If [code]true[/code], the object draws on top of its parent. Default value: [code]true[/code].
 		</member>
 		<member name="use_parent_material" type="bool" setter="set_use_parent_material" getter="get_use_parent_material">
-			If [code]true[/code], the parent [code]CanvasItem[/code]'s [member material] property is used as this one's material. Default value: [code]false[/code].
+			If [code]true[/code], the parent [CanvasItem]'s [member material] property is used as this one's material. Default value: [code]false[/code].
 		</member>
 		<member name="visible" type="bool" setter="set_visible" getter="is_visible">
-			If [code]true[/code], this [code]CanvasItem[/code] is drawn. Default value: [code]true[/code]. For controls that inherit [Popup], the correct way to make them visible is to call one of the multiple popup*() functions instead.
+			If [code]true[/code], this [CanvasItem] is drawn. Default value: [code]true[/code]. For controls that inherit [Popup], the correct way to make them visible is to call one of the multiple [code]popup*()[/code] functions instead.
 		</member>
 	</members>
 	<signals>
@@ -573,22 +575,22 @@
 			Mix blending mode. Colors are assumed to be premultiplied by the alpha (opacity) value.
 		</constant>
 		<constant name="BLEND_MODE_DISABLED" value="5" enum="BlendMode">
-			Disable blending mode. Colors including alpha are written as is. Only applicable for render targets with a transparent background. No lighting will be applied.
+			Disable blending mode. Colors including alpha are written as-is. Only applicable for render targets with a transparent background. No lighting will be applied.
 		</constant>
-		<constant name="NOTIFICATION_TRANSFORM_CHANGED" value="29">
-			Canvas item transform has changed. Notification is only received if enabled by [method set_notify_transform] or [method set_notify_local_transform].
+		<constant name="NOTIFICATION_TRANSFORM_CHANGED" value="2000">
+			The CanvasItem's transform has changed. This notification is only received if enabled by [method set_notify_transform] or [method set_notify_local_transform].
 		</constant>
 		<constant name="NOTIFICATION_DRAW" value="30">
-			CanvasItem is requested to draw.
+			The CanvasItem is requested to draw.
 		</constant>
 		<constant name="NOTIFICATION_VISIBILITY_CHANGED" value="31">
-			Canvas item visibility has changed.
+			The CanvasItem's visibility has changed.
 		</constant>
 		<constant name="NOTIFICATION_ENTER_CANVAS" value="32">
-			Canvas item has entered the canvas.
+			The CanvasItem has entered the canvas.
 		</constant>
 		<constant name="NOTIFICATION_EXIT_CANVAS" value="33">
-			Canvas item has exited the canvas.
+			The CanvasItem has exited the canvas.
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/CanvasItemMaterial.xml b/doc/classes/CanvasItemMaterial.xml
index 69d873f446..f125c2be0d 100644
--- a/doc/classes/CanvasItemMaterial.xml
+++ b/doc/classes/CanvasItemMaterial.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CanvasItemMaterial" inherits="Material" category="Core" version="3.1">
+<class name="CanvasItemMaterial" inherits="Material" category="Core" version="3.2">
 	<brief_description>
 		A material for [CanvasItem]s.
 	</brief_description>
 	<description>
-		[code]CanvasItemMaterial[/code]s provide a means of modifying the textures associated with a CanvasItem. They specialize in describing blend and lighting behaviors for textures. Use a [ShaderMaterial] to more fully customize a material's interactions with a [CanvasItem].
+		[CanvasItemMaterial]s provide a means of modifying the textures associated with a CanvasItem. They specialize in describing blend and lighting behaviors for textures. Use a [ShaderMaterial] to more fully customize a material's interactions with a [CanvasItem].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CanvasLayer.xml b/doc/classes/CanvasLayer.xml
index c39b47ab07..d152442b85 100644
--- a/doc/classes/CanvasLayer.xml
+++ b/doc/classes/CanvasLayer.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CanvasLayer" inherits="Node" category="Core" version="3.1">
+<class name="CanvasLayer" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Canvas drawing layer.
 	</brief_description>
 	<description>
-		Canvas drawing layer. [CanvasItem] nodes that are direct or indirect children of a [code]CanvasLayer[/code] will be drawn in that layer. The layer is a numeric index that defines the draw order. The default 2D scene renders with index 0, so a [code]CanvasLayer[/code] with index -1 will be drawn below, and one with index 1 will be drawn above. This is very useful for HUDs (in layer 1+ or above), or backgrounds (in layer -1 or below).
+		Canvas drawing layer. [CanvasItem] nodes that are direct or indirect children of a [CanvasLayer] will be drawn in that layer. The layer is a numeric index that defines the draw order. The default 2D scene renders with index 0, so a [CanvasLayer] with index -1 will be drawn below, and one with index 1 will be drawn above. This is very useful for HUDs (in layer 1+ or above), or backgrounds (in layer -1 or below).
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/2d_transforms.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/canvas_layers.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_canvas" qualifiers="const">
 			<return type="RID">
@@ -23,7 +21,11 @@
 	</methods>
 	<members>
 		<member name="custom_viewport" type="Node" setter="set_custom_viewport" getter="get_custom_viewport">
-			The custom [Viewport] node assigned to the [code]CanvasLayer[/code]. If null, uses the default viewport instead.
+			The custom [Viewport] node assigned to the [CanvasLayer]. If null, uses the default viewport instead.
+		</member>
+		<member name="follow_viewport_enable" type="bool" setter="set_follow_viewport" getter="is_following_viewport">
+		</member>
+		<member name="follow_viewport_scale" type="float" setter="set_follow_viewport_scale" getter="get_follow_viewport_scale">
 		</member>
 		<member name="layer" type="int" setter="set_layer" getter="get_layer">
 			Layer index for draw order. Lower values are drawn first. Default value: [code]1[/code].
diff --git a/doc/classes/CanvasModulate.xml b/doc/classes/CanvasModulate.xml
index 7740423cf5..c409b690e7 100644
--- a/doc/classes/CanvasModulate.xml
+++ b/doc/classes/CanvasModulate.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CanvasModulate" inherits="Node2D" category="Core" version="3.1">
+<class name="CanvasModulate" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Tint the entire canvas.
 	</brief_description>
 	<description>
-		[code]CanvasModulate[/code] tints the canvas elements using its assigned [code]color[/code].
+		[CanvasModulate] tints the canvas elements using its assigned [code]color[/code].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CapsuleMesh.xml b/doc/classes/CapsuleMesh.xml
index 3500701290..eba440a84e 100644
--- a/doc/classes/CapsuleMesh.xml
+++ b/doc/classes/CapsuleMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CapsuleMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="CapsuleMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Class representing a capsule-shaped [PrimitiveMesh].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CapsuleShape.xml b/doc/classes/CapsuleShape.xml
index 0c00288783..c867dcf326 100644
--- a/doc/classes/CapsuleShape.xml
+++ b/doc/classes/CapsuleShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CapsuleShape" inherits="Shape" category="Core" version="3.1">
+<class name="CapsuleShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Capsule shape for collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CapsuleShape2D.xml b/doc/classes/CapsuleShape2D.xml
index f05b194601..c7724314d6 100644
--- a/doc/classes/CapsuleShape2D.xml
+++ b/doc/classes/CapsuleShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CapsuleShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="CapsuleShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Capsule shape for 2D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CenterContainer.xml b/doc/classes/CenterContainer.xml
index 93c4208765..5460831ce3 100644
--- a/doc/classes/CenterContainer.xml
+++ b/doc/classes/CenterContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CenterContainer" inherits="Container" category="Core" version="3.1">
+<class name="CenterContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Keeps children controls centered.
 	</brief_description>
@@ -8,13 +8,11 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="use_top_left" type="bool" setter="set_use_top_left" getter="is_using_top_left">
-			If [code]true[/code], centers children relative to the [code]CenterContainer[/code]'s top left corner. Default value: [code]false[/code].
+			If [code]true[/code], centers children relative to the [CenterContainer]'s top left corner. Default value: [code]false[/code].
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/CheckBox.xml b/doc/classes/CheckBox.xml
index a2a7cf85e8..d486b5fad2 100644
--- a/doc/classes/CheckBox.xml
+++ b/doc/classes/CheckBox.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CheckBox" inherits="Button" category="Core" version="3.1">
+<class name="CheckBox" inherits="Button" category="Core" version="3.2">
 	<brief_description>
 		Binary choice user interface widget.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/CheckButton.xml b/doc/classes/CheckButton.xml
index 24875017fe..94e4eececd 100644
--- a/doc/classes/CheckButton.xml
+++ b/doc/classes/CheckButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CheckButton" inherits="Button" category="Core" version="3.1">
+<class name="CheckButton" inherits="Button" category="Core" version="3.2">
 	<brief_description>
 		Checkable button.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/CircleShape2D.xml b/doc/classes/CircleShape2D.xml
index db84c82e48..7c8bf923f4 100644
--- a/doc/classes/CircleShape2D.xml
+++ b/doc/classes/CircleShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CircleShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="CircleShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Circular shape for 2D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ClassDB.xml b/doc/classes/ClassDB.xml
index e215585b74..b029c85409 100644
--- a/doc/classes/ClassDB.xml
+++ b/doc/classes/ClassDB.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ClassDB" inherits="Object" category="Core" version="3.1">
+<class name="ClassDB" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Class information repository.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="can_instance" qualifiers="const">
 			<return type="bool">
@@ -17,7 +15,7 @@
 			<argument index="0" name="class" type="String">
 			</argument>
 			<description>
-				Returns true if you can instance objects from the specified 'class', false in other case.
+				Returns [code]true[/code] if you can instance objects from the specified 'class', [code]false[/code] in other case.
 			</description>
 		</method>
 		<method name="class_exists" qualifiers="const">
@@ -68,7 +66,7 @@
 			<argument index="1" name="no_inheritance" type="bool" default="false">
 			</argument>
 			<description>
-				Returns an array with all the methods of 'class' or its ancestry if 'no_inheritance' is false. Every element of the array is a [Dictionary] with the following keys: args, default_args, flags, id, name, return: (class_name, hint, hint_string, name, type, usage).
+				Returns an array with all the methods of 'class' or its ancestry if 'no_inheritance' is [code]false[/code]. Every element of the array is a [Dictionary] with the following keys: args, default_args, flags, id, name, return: (class_name, hint, hint_string, name, type, usage).
 			</description>
 		</method>
 		<method name="class_get_property" qualifiers="const">
@@ -90,7 +88,7 @@
 			<argument index="1" name="no_inheritance" type="bool" default="false">
 			</argument>
 			<description>
-				Returns an array with all the properties of 'class' or its ancestry if 'no_inheritance' is false.
+				Returns an array with all the properties of 'class' or its ancestry if 'no_inheritance' is [code]false[/code].
 			</description>
 		</method>
 		<method name="class_get_signal" qualifiers="const">
@@ -112,7 +110,7 @@
 			<argument index="1" name="no_inheritance" type="bool" default="false">
 			</argument>
 			<description>
-				Returns an array with all the signals of 'class' or its ancestry if 'no_inheritance' is false. Every element of the array is a [Dictionary] as described in [method class_get_signal].
+				Returns an array with all the signals of 'class' or its ancestry if 'no_inheritance' is [code]false[/code]. Every element of the array is a [Dictionary] as described in [method class_get_signal].
 			</description>
 		</method>
 		<method name="class_has_integer_constant" qualifiers="const">
diff --git a/doc/classes/ClippedCamera.xml b/doc/classes/ClippedCamera.xml
index 509ddb01fc..b7f158dd65 100644
--- a/doc/classes/ClippedCamera.xml
+++ b/doc/classes/ClippedCamera.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ClippedCamera" inherits="Camera" category="Core" version="3.1">
+<class name="ClippedCamera" inherits="Camera" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_exception">
 			<return type="void">
diff --git a/doc/classes/CollisionObject.xml b/doc/classes/CollisionObject.xml
index f702fbadbb..cb10530006 100644
--- a/doc/classes/CollisionObject.xml
+++ b/doc/classes/CollisionObject.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CollisionObject" inherits="Spatial" category="Core" version="3.1">
+<class name="CollisionObject" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Base node for collision objects.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_input_event" qualifiers="virtual">
 			<return type="void">
@@ -183,7 +181,7 @@
 	</methods>
 	<members>
 		<member name="input_capture_on_drag" type="bool" setter="set_capture_input_on_drag" getter="get_capture_input_on_drag">
-			If [code]true[/code], the [code]CollisionObject[/code] will continue to receive input events as the mouse is dragged across its shapes. Default value: [code]false[/code].
+			If [code]true[/code], the [CollisionObject] will continue to receive input events as the mouse is dragged across its shapes. Default value: [code]false[/code].
 		</member>
 		<member name="input_ray_pickable" type="bool" setter="set_ray_pickable" getter="is_ray_pickable">
 			If [code]true[/code], the [CollisionObject]'s shapes will respond to [RayCast]s. Default value: [code]true[/code].
diff --git a/doc/classes/CollisionObject2D.xml b/doc/classes/CollisionObject2D.xml
index 91f283a2b7..f847893a39 100644
--- a/doc/classes/CollisionObject2D.xml
+++ b/doc/classes/CollisionObject2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CollisionObject2D" inherits="Node2D" category="Core" version="3.1">
+<class name="CollisionObject2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Base node for 2D collision objects.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_input_event" qualifiers="virtual">
 			<return type="void">
@@ -70,7 +68,7 @@
 			<argument index="0" name="owner_id" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if collisions for the shape owner originating from this [code]CollisionObject2D[/code] will not be reported to collided with [code]CollisionObject2D[/code]s.
+				Returns [code]true[/code] if collisions for the shape owner originating from this [CollisionObject2D] will not be reported to collided with [CollisionObject2D]s.
 			</description>
 		</method>
 		<method name="remove_shape_owner">
@@ -190,7 +188,7 @@
 			<argument index="1" name="enable" type="bool">
 			</argument>
 			<description>
-				If [code]enable[/code] is [code]true[/code], collisions for the shape owner originating from this [code]CollisionObject2D[/code] will not be reported to collided with [code]CollisionObject2D[/code]s.
+				If [code]enable[/code] is [code]true[/code], collisions for the shape owner originating from this [CollisionObject2D] will not be reported to collided with [CollisionObject2D]s.
 			</description>
 		</method>
 		<method name="shape_owner_set_one_way_collision_margin">
@@ -217,7 +215,7 @@
 	</methods>
 	<members>
 		<member name="input_pickable" type="bool" setter="set_pickable" getter="is_pickable">
-			If [code]true[/code], this object is pickable. A pickable object can detect the mouse pointer entering/leaving, and if the mouse is inside it, report input events.
+			If [code]true[/code], this object is pickable. A pickable object can detect the mouse pointer entering/leaving, and if the mouse is inside it, report input events. Requires at least one [code]collision_layer[/code] bit to be set.
 		</member>
 	</members>
 	<signals>
@@ -229,17 +227,17 @@
 			<argument index="2" name="shape_idx" type="int">
 			</argument>
 			<description>
-				Emitted when an input event occurs and [code]input_pickable[/code] is [code]true[/code]. See [method _input_event] for details.
+				Emitted when an input event occurs. Requires [code]input_pickable[/code] to be [code]true[/code] and at least one [code]collision_layer[/code] bit to be set. See [method _input_event] for details.
 			</description>
 		</signal>
 		<signal name="mouse_entered">
 			<description>
-				Emitted when the mouse pointer enters any of this object's shapes.
+				Emitted when the mouse pointer enters any of this object's shapes. Requires [code]input_pickable[/code] to be [code]true[/code] and at least one [code]collision_layer[/code] bit to be set.
 			</description>
 		</signal>
 		<signal name="mouse_exited">
 			<description>
-				Emitted when the mouse pointer exits all this object's shapes.
+				Emitted when the mouse pointer exits all this object's shapes. Requires [code]input_pickable[/code] to be [code]true[/code] and at least one [code]collision_layer[/code] bit to be set.
 			</description>
 		</signal>
 	</signals>
diff --git a/doc/classes/CollisionPolygon.xml b/doc/classes/CollisionPolygon.xml
index 0b4f07578e..85eb17cae7 100644
--- a/doc/classes/CollisionPolygon.xml
+++ b/doc/classes/CollisionPolygon.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CollisionPolygon" inherits="Spatial" category="Core" version="3.1">
+<class name="CollisionPolygon" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Editor-only class for defining a collision polygon in 3D space.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -17,7 +15,7 @@
 			Length that the resulting collision extends in either direction perpendicular to its polygon.
 		</member>
 		<member name="disabled" type="bool" setter="set_disabled" getter="is_disabled">
-			If true, no collision will be produced.
+			If [code]true[/code], no collision will be produced.
 		</member>
 		<member name="polygon" type="PoolVector2Array" setter="set_polygon" getter="get_polygon">
 			Array of vertices which define the polygon. Note that the returned value is a copy of the original. Methods which mutate the size or properties of the return value will not impact the original polygon. To change properties of the polygon, assign it to a temporary variable and make changes before reassigning the [code]polygon[/code] member.
diff --git a/doc/classes/CollisionPolygon2D.xml b/doc/classes/CollisionPolygon2D.xml
index e754a2f2d1..3d609fa965 100644
--- a/doc/classes/CollisionPolygon2D.xml
+++ b/doc/classes/CollisionPolygon2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CollisionPolygon2D" inherits="Node2D" category="Core" version="3.1">
+<class name="CollisionPolygon2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Defines a 2D collision polygon.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CollisionShape.xml b/doc/classes/CollisionShape.xml
index 740a6b7ab1..3f2e550e83 100644
--- a/doc/classes/CollisionShape.xml
+++ b/doc/classes/CollisionShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CollisionShape" inherits="Spatial" category="Core" version="3.1">
+<class name="CollisionShape" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Node that represents collision shape data in 3D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="make_convex_from_brothers">
 			<return type="void">
diff --git a/doc/classes/CollisionShape2D.xml b/doc/classes/CollisionShape2D.xml
index 07dbde1c21..97dc230f22 100644
--- a/doc/classes/CollisionShape2D.xml
+++ b/doc/classes/CollisionShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CollisionShape2D" inherits="Node2D" category="Core" version="3.1">
+<class name="CollisionShape2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Node that represents collision shape data in 2D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Color.xml b/doc/classes/Color.xml
index 68f5734491..9f48f6e018 100644
--- a/doc/classes/Color.xml
+++ b/doc/classes/Color.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Color" category="Built-In Types" version="3.1">
+<class name="Color" category="Built-In Types" version="3.2">
 	<brief_description>
 		Color in RGBA format with some support for ARGB format.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Color">
 			<return type="Color">
diff --git a/doc/classes/ColorPicker.xml b/doc/classes/ColorPicker.xml
index dfe0492d0b..a58edb5ca8 100644
--- a/doc/classes/ColorPicker.xml
+++ b/doc/classes/ColorPicker.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ColorPicker" inherits="BoxContainer" category="Core" version="3.1">
+<class name="ColorPicker" inherits="BoxContainer" category="Core" version="3.2">
 	<brief_description>
 		Color picker control.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_preset">
 			<return type="void">
@@ -47,6 +45,10 @@
 		<member name="edit_alpha" type="bool" setter="set_edit_alpha" getter="is_editing_alpha">
 			If [code]true[/code], shows an alpha channel slider (transparency).
 		</member>
+		<member name="presets_enabled" type="bool" setter="set_presets_enabled" getter="are_presets_enabled">
+		</member>
+		<member name="presets_visible" type="bool" setter="set_presets_visible" getter="are_presets_visible">
+		</member>
 		<member name="raw_mode" type="bool" setter="set_raw_mode" getter="is_raw_mode">
 			If [code]true[/code], allows the color R, G, B component values to go beyond 1.0, which can be used for certain special operations that require it (like tinting without darkening or rendering sprites in HDR).
 		</member>
diff --git a/doc/classes/ColorPickerButton.xml b/doc/classes/ColorPickerButton.xml
index e1a6290161..3e4911cac3 100644
--- a/doc/classes/ColorPickerButton.xml
+++ b/doc/classes/ColorPickerButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ColorPickerButton" inherits="Button" category="Core" version="3.1">
+<class name="ColorPickerButton" inherits="Button" category="Core" version="3.2">
 	<brief_description>
 		Button that pops out a [ColorPicker].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_picker">
 			<return type="ColorPicker">
diff --git a/doc/classes/ColorRect.xml b/doc/classes/ColorRect.xml
index e1bffb719e..d659ebdfcd 100644
--- a/doc/classes/ColorRect.xml
+++ b/doc/classes/ColorRect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ColorRect" inherits="Control" category="Core" version="3.1">
+<class name="ColorRect" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Colored rectangle.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ConcavePolygonShape.xml b/doc/classes/ConcavePolygonShape.xml
index f4958d88d0..afc6ce74a5 100644
--- a/doc/classes/ConcavePolygonShape.xml
+++ b/doc/classes/ConcavePolygonShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConcavePolygonShape" inherits="Shape" category="Core" version="3.1">
+<class name="ConcavePolygonShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Concave polygon shape.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_faces" qualifiers="const">
 			<return type="PoolVector3Array">
diff --git a/doc/classes/ConcavePolygonShape2D.xml b/doc/classes/ConcavePolygonShape2D.xml
index a653872353..5414fe42c5 100644
--- a/doc/classes/ConcavePolygonShape2D.xml
+++ b/doc/classes/ConcavePolygonShape2D.xml
@@ -1,21 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConcavePolygonShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="ConcavePolygonShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Concave polygon 2D shape resource for physics.
 	</brief_description>
 	<description>
 		Concave polygon 2D shape resource for physics. It is made out of segments and is very optimal for complex polygonal concave collisions. It is really not advised to use for [RigidBody2D] nodes. A CollisionPolygon2D in convex decomposition mode (solids) or several convex objects are advised for that instead. Otherwise, a concave polygon 2D shape is better for static collisions.
-		The main difference between a [ConvexPolygonShape2D] and a [code]ConcavePolygonShape2D[/code] is that a concave polygon assumes it is concave and uses a more complex method of collision detection, and a convex one forces itself to be convex in order to speed up collision detection.
+		The main difference between a [ConvexPolygonShape2D] and a [ConcavePolygonShape2D] is that a concave polygon assumes it is concave and uses a more complex method of collision detection, and a convex one forces itself to be convex in order to speed up collision detection.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="segments" type="PoolVector2Array" setter="set_segments" getter="get_segments">
-			The array of points that make up the [code]ConcavePolygonShape2D[/code]'s line segments.
+			The array of points that make up the [ConcavePolygonShape2D]'s line segments.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/ConeTwistJoint.xml b/doc/classes/ConeTwistJoint.xml
index d6b2f191a4..cd2289d715 100644
--- a/doc/classes/ConeTwistJoint.xml
+++ b/doc/classes/ConeTwistJoint.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConeTwistJoint" inherits="Joint" category="Core" version="3.1">
+<class name="ConeTwistJoint" inherits="Joint" category="Core" version="3.2">
 	<brief_description>
 		A twist joint between two 3D bodies.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -28,7 +26,7 @@
 		<member name="swing_span" type="float" setter="_set_swing_span" getter="_get_swing_span">
 			Swing is rotation from side to side, around the axis perpendicular to the twist axis.
 			The swing span defines, how much rotation will not get corrected allong the swing axis.
-			Could be defined as looseness in the [code]ConeTwistJoint[/code].
+			Could be defined as looseness in the [ConeTwistJoint].
 			If below 0.05, this behaviour is locked. Default value: [code]PI/4[/code].
 		</member>
 		<member name="twist_span" type="float" setter="_set_twist_span" getter="_get_twist_span">
@@ -40,7 +38,7 @@
 		<constant name="PARAM_SWING_SPAN" value="0" enum="Param">
 			Swing is rotation from side to side, around the axis perpendicular to the twist axis.
 			The swing span defines, how much rotation will not get corrected allong the swing axis.
-			Could be defined as looseness in the [code]ConeTwistJoint[/code].
+			Could be defined as looseness in the [ConeTwistJoint].
 			If below 0.05, this behaviour is locked. Default value: [code]PI/4[/code].
 		</constant>
 		<constant name="PARAM_TWIST_SPAN" value="1" enum="Param">
diff --git a/doc/classes/ConfigFile.xml b/doc/classes/ConfigFile.xml
index 703043294b..68831a886a 100644
--- a/doc/classes/ConfigFile.xml
+++ b/doc/classes/ConfigFile.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConfigFile" inherits="Reference" category="Core" version="3.1">
+<class name="ConfigFile" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Helper class to handle INI-style files.
 	</brief_description>
@@ -29,8 +29,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="erase_section">
 			<return type="void">
diff --git a/doc/classes/ConfirmationDialog.xml b/doc/classes/ConfirmationDialog.xml
index 461f48420a..f39915f4b7 100644
--- a/doc/classes/ConfirmationDialog.xml
+++ b/doc/classes/ConfirmationDialog.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConfirmationDialog" inherits="AcceptDialog" category="Core" version="3.1">
+<class name="ConfirmationDialog" inherits="AcceptDialog" category="Core" version="3.2">
 	<brief_description>
 		Dialog for confirmation of actions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_cancel">
 			<return type="Button">
diff --git a/doc/classes/Container.xml b/doc/classes/Container.xml
index db365db233..8a3aac88b5 100644
--- a/doc/classes/Container.xml
+++ b/doc/classes/Container.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Container" inherits="Control" category="Core" version="3.1">
+<class name="Container" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Base node for containers.
 	</brief_description>
 	<description>
-		Base node for containers. A [code]Container[/code] contains other controls and automatically arranges them in a certain way.
+		Base node for containers. A [Container] contains other controls and automatically arranges them in a certain way.
 		A Control can inherit this to create custom container classes.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="fit_child_in_rect">
 			<return type="void">
diff --git a/doc/classes/Control.xml b/doc/classes/Control.xml
index 0152cca957..f7fbdf08ed 100644
--- a/doc/classes/Control.xml
+++ b/doc/classes/Control.xml
@@ -1,23 +1,21 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Control" inherits="CanvasItem" category="Core" version="3.1">
+<class name="Control" inherits="CanvasItem" category="Core" version="3.2">
 	<brief_description>
 		All User Interface nodes inherit from Control. A control's anchors and margins adapt its position and size relative to its parent.
 	</brief_description>
 	<description>
-		Base class for all User Interface or [i]UI[/i] related nodes. [code]Control[/code] features a bounding rectangle that defines its extents, an anchor position relative to its parent and margins that represent an offset to the anchor. The margins update automatically when the node, any of its parents, or the screen size change.
-		For more information on Godot's UI system, anchors, margins, and containers, see the related tutorials in the manual. To build flexible UIs, you'll need a mix of UI elements that inherit from [code]Control[/code] and [Container] nodes.
+		Base class for all User Interface or [i]UI[/i] related nodes. [Control] features a bounding rectangle that defines its extents, an anchor position relative to its parent and margins that represent an offset to the anchor. The margins update automatically when the node, any of its parents, or the screen size change.
+		For more information on Godot's UI system, anchors, margins, and containers, see the related tutorials in the manual. To build flexible UIs, you'll need a mix of UI elements that inherit from [Control] and [Container] nodes.
 		[b]User Interface nodes and input[/b]
 		Godot sends input events to the scene's root node first, by calling [method Node._input]. [method Node._input] forwards the event down the node tree to the nodes under the mouse cursor, or on keyboard focus. To do so, it calls [method MainLoop._input_event]. Call [method accept_event] so no other node receives the event. Once you accepted an input, it becomes handled so [method Node._unhandled_input] will not process it.
-		Only one [code]Control[/code] node can be in keyboard focus. Only the node in focus will receive keyboard events. To get the focus, call [method grab_focus]. [code]Control[/code] nodes lose focus when another node grabs it, or if you hide the node in focus.
-		Set [member mouse_filter] to [constant MOUSE_FILTER_IGNORE] to tell a [code]Control[/code] node to ignore mouse or touch events. You'll need it if you place an icon on top of a button.
-		[Theme] resources change the Control's appearance. If you change the [Theme] on a [code]Control[/code] node, it affects all of its children. To override some of the theme's parameters, call one of the [code]add_*_override[/code] methods, like [method add_font_override]. You can override the theme with the inspector.
+		Only one [Control] node can be in keyboard focus. Only the node in focus will receive keyboard events. To get the focus, call [method grab_focus]. [Control] nodes lose focus when another node grabs it, or if you hide the node in focus.
+		Set [member mouse_filter] to [constant MOUSE_FILTER_IGNORE] to tell a [Control] node to ignore mouse or touch events. You'll need it if you place an icon on top of a button.
+		[Theme] resources change the Control's appearance. If you change the [Theme] on a [Control] node, it affects all of its children. To override some of the theme's parameters, call one of the [code]add_*_override[/code] methods, like [method add_font_override]. You can override the theme with the inspector.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/gui/index.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/custom_drawing_in_2d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_clips_input" qualifiers="virtual">
 			<return type="bool">
@@ -632,16 +630,16 @@
 			The focus access mode for the control (None, Click or All). Only one Control can be focused at the same time, and it will receive keyboard signals.
 		</member>
 		<member name="focus_neighbour_bottom" type="NodePath" setter="set_focus_neighbour" getter="get_focus_neighbour">
-			Tells Godot which node it should give keyboard focus to if the user presses the down arrow on the keyboard or down on a gamepad by default. You can change the key by editing the [code]ui_down[/code] input action. The node must be a [code]Control[/code]. If this property is not set, Godot will give focus to the closest [code]Control[/code] to the bottom of this one.
+			Tells Godot which node it should give keyboard focus to if the user presses the down arrow on the keyboard or down on a gamepad by default. You can change the key by editing the [code]ui_down[/code] input action. The node must be a [Control]. If this property is not set, Godot will give focus to the closest [Control] to the bottom of this one.
 		</member>
 		<member name="focus_neighbour_left" type="NodePath" setter="set_focus_neighbour" getter="get_focus_neighbour">
-			Tells Godot which node it should give keyboard focus to if the user presses the left arrow on the keyboard or left on a gamepad by default. You can change the key by editing the [code]ui_left[/code] input action. The node must be a [code]Control[/code]. If this property is not set, Godot will give focus to the closest [code]Control[/code] to the left of this one.
+			Tells Godot which node it should give keyboard focus to if the user presses the left arrow on the keyboard or left on a gamepad by default. You can change the key by editing the [code]ui_left[/code] input action. The node must be a [Control]. If this property is not set, Godot will give focus to the closest [Control] to the left of this one.
 		</member>
 		<member name="focus_neighbour_right" type="NodePath" setter="set_focus_neighbour" getter="get_focus_neighbour">
-			Tells Godot which node it should give keyboard focus to if the user presses the right arrow on the keyboard or right on a gamepad  by default. You can change the key by editing the [code]ui_right[/code] input action. The node must be a [code]Control[/code]. If this property is not set, Godot will give focus to the closest [code]Control[/code] to the bottom of this one.
+			Tells Godot which node it should give keyboard focus to if the user presses the right arrow on the keyboard or right on a gamepad  by default. You can change the key by editing the [code]ui_right[/code] input action. The node must be a [Control]. If this property is not set, Godot will give focus to the closest [Control] to the bottom of this one.
 		</member>
 		<member name="focus_neighbour_top" type="NodePath" setter="set_focus_neighbour" getter="get_focus_neighbour">
-			Tells Godot which node it should give keyboard focus to if the user presses the top arrow on the keyboard or top on a gamepad by default. You can change the key by editing the [code]ui_top[/code] input action. The node must be a [code]Control[/code]. If this property is not set, Godot will give focus to the closest [code]Control[/code] to the bottom of this one.
+			Tells Godot which node it should give keyboard focus to if the user presses the top arrow on the keyboard or top on a gamepad by default. You can change the key by editing the [code]ui_top[/code] input action. The node must be a [Control]. If this property is not set, Godot will give focus to the closest [Control] to the bottom of this one.
 		</member>
 		<member name="focus_next" type="NodePath" setter="set_focus_next" getter="get_focus_next">
 			Tells Godot which node it should give keyboard focus to if the user presses Tab on a keyboard by default. You can change the key by editing the [code]ui_focus_next[/code] input action.
@@ -684,7 +682,7 @@
 			Controls whether the control will be able to receive mouse button input events through [method _gui_input] and how these events should be handled. Also controls whether the control can receive the [signal mouse_entered], and [signal mouse_exited] signals. See the constants to learn what each does.
 		</member>
 		<member name="rect_clip_content" type="bool" setter="set_clip_contents" getter="is_clipping_contents">
-			Enables whether rendering of children should be clipped to this control's rectangle. If true, parts of a child which would be visibly outside of this control's rectangle will not be rendered.
+			Enables whether rendering of children should be clipped to this control's rectangle. If [code]true[/code], parts of a child which would be visibly outside of this control's rectangle will not be rendered.
 		</member>
 		<member name="rect_global_position" type="Vector2" setter="set_global_position" getter="get_global_position">
 			The node's global position, relative to the world (usually to the top-left corner of the window).
@@ -717,7 +715,7 @@
 			Tells the parent [Container] nodes how they should resize and place the node on the Y axis. Use one of the [code]SIZE_*[/code] constants to change the flags. See the constants to learn what each does.
 		</member>
 		<member name="theme" type="Theme" setter="set_theme" getter="get_theme">
-			Changing this property replaces the current [Theme] resource this node and all its [code]Control[/code] children use.
+			Changing this property replaces the current [Theme] resource this node and all its [Control] children use.
 		</member>
 	</members>
 	<signals>
@@ -745,7 +743,7 @@
 		</signal>
 		<signal name="modal_closed">
 			<description>
-				Emitted when a modal [code]Control[/code] is closed. See [method show_modal].
+				Emitted when a modal [Control] is closed. See [method show_modal].
 			</description>
 		</signal>
 		<signal name="mouse_entered">
@@ -903,7 +901,7 @@
 			Snap all 4 anchors to a horizontal line that cuts the parent control in half. Use with [method set_anchors_preset].
 		</constant>
 		<constant name="PRESET_WIDE" value="15" enum="LayoutPreset">
-			Snap all 4 anchors to the respective corners of the parent control. Set all 4 margins to 0 after you applied this preset and the [code]Control[/code] will fit its parent control. This is equivalent to to the "Full Rect" layout option in the editor. Use with [method set_anchors_preset].
+			Snap all 4 anchors to the respective corners of the parent control. Set all 4 margins to 0 after you applied this preset and the [Control] will fit its parent control. This is equivalent to to the "Full Rect" layout option in the editor. Use with [method set_anchors_preset].
 		</constant>
 		<constant name="PRESET_MODE_MINSIZE" value="0" enum="LayoutPresetMode">
 		</constant>
diff --git a/doc/classes/ConvexPolygonShape.xml b/doc/classes/ConvexPolygonShape.xml
index 757b053ffe..31b4d08213 100644
--- a/doc/classes/ConvexPolygonShape.xml
+++ b/doc/classes/ConvexPolygonShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConvexPolygonShape" inherits="Shape" category="Core" version="3.1">
+<class name="ConvexPolygonShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Convex polygon shape for 3D physics.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ConvexPolygonShape2D.xml b/doc/classes/ConvexPolygonShape2D.xml
index 8210e7dc9c..7add252481 100644
--- a/doc/classes/ConvexPolygonShape2D.xml
+++ b/doc/classes/ConvexPolygonShape2D.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ConvexPolygonShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="ConvexPolygonShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Convex Polygon Shape for 2D physics.
 	</brief_description>
 	<description>
 		Convex Polygon Shape for 2D physics. A convex polygon, whatever its shape, is internally decomposed into as many convex polygons as needed to ensure all collision checks against it are always done on convex polygons (which are faster to check).
-		The main difference between a [code]ConvexPolygonShape2D[/code] and a [ConcavePolygonShape2D] is that a concave polygon assumes it is concave and uses a more complex method of collision detection, and a convex one forces itself to be convex in order to speed up collision detection.
+		The main difference between a [ConvexPolygonShape2D] and a [ConcavePolygonShape2D] is that a concave polygon assumes it is concave and uses a more complex method of collision detection, and a convex one forces itself to be convex in order to speed up collision detection.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="set_point_cloud">
 			<return type="void">
diff --git a/doc/classes/CubeMap.xml b/doc/classes/CubeMap.xml
index ac5359738e..f5d2823115 100644
--- a/doc/classes/CubeMap.xml
+++ b/doc/classes/CubeMap.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CubeMap" inherits="Resource" category="Core" version="3.1">
+<class name="CubeMap" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A CubeMap is a 6 sided 3D texture.
 	</brief_description>
@@ -8,14 +8,12 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_height" qualifiers="const">
 			<return type="int">
 			</return>
 			<description>
-				Returns the [code]CubeMap[/code]'s height.
+				Returns the [CubeMap]'s height.
 			</description>
 		</method>
 		<method name="get_side" qualifiers="const">
@@ -24,14 +22,14 @@
 			<argument index="0" name="side" type="int" enum="CubeMap.Side">
 			</argument>
 			<description>
-				Returns an [Image] for a side of the [code]CubeMap[/code] using one of the [code]SIDE_*[/code] constants or an integer 0-5.
+				Returns an [Image] for a side of the [CubeMap] using one of the [code]SIDE_*[/code] constants or an integer 0-5.
 			</description>
 		</method>
 		<method name="get_width" qualifiers="const">
 			<return type="int">
 			</return>
 			<description>
-				Returns the [code]CubeMap[/code]'s width.
+				Returns the [CubeMap]'s width.
 			</description>
 		</method>
 		<method name="set_side">
@@ -42,48 +40,48 @@
 			<argument index="1" name="image" type="Image">
 			</argument>
 			<description>
-				Sets an [Image] for a side of the [code]CubeMap[/code] using one of the [code]SIDE_*[/code] constants or an integer 0-5.
+				Sets an [Image] for a side of the [CubeMap] using one of the [code]SIDE_*[/code] constants or an integer 0-5.
 			</description>
 		</method>
 	</methods>
 	<members>
 		<member name="flags" type="int" setter="set_flags" getter="get_flags">
-			The render flags for the [code]CubeMap[/code]. See the [code]FLAG_*[/code] constants for details.
+			The render flags for the [CubeMap]. See the [code]FLAG_*[/code] constants for details.
 		</member>
 		<member name="lossy_storage_quality" type="float" setter="set_lossy_storage_quality" getter="get_lossy_storage_quality">
-			The lossy storage quality of the [code]CubeMap[/code] if the storage mode is set to STORAGE_COMPRESS_LOSSY.
+			The lossy storage quality of the [CubeMap] if the storage mode is set to STORAGE_COMPRESS_LOSSY.
 		</member>
 		<member name="storage_mode" type="int" setter="set_storage" getter="get_storage" enum="CubeMap.Storage">
-			The [code]CubeMap[/code]'s storage mode. See [code]STORAGE_*[/code] constants.
+			The [CubeMap]'s storage mode. See [code]STORAGE_*[/code] constants.
 		</member>
 	</members>
 	<constants>
 		<constant name="STORAGE_RAW" value="0" enum="Storage">
-			Store the [code]CubeMap[/code] without any compression.
+			Store the [CubeMap] without any compression.
 		</constant>
 		<constant name="STORAGE_COMPRESS_LOSSY" value="1" enum="Storage">
-			Store the [code]CubeMap[/code] with strong compression that reduces image quality.
+			Store the [CubeMap] with strong compression that reduces image quality.
 		</constant>
 		<constant name="STORAGE_COMPRESS_LOSSLESS" value="2" enum="Storage">
-			Store the [code]CubeMap[/code] with moderate compression that doesn't reduce image quality.
+			Store the [CubeMap] with moderate compression that doesn't reduce image quality.
 		</constant>
 		<constant name="SIDE_LEFT" value="0" enum="Side">
-			Identifier for the left face of the [code]CubeMap[/code].
+			Identifier for the left face of the [CubeMap].
 		</constant>
 		<constant name="SIDE_RIGHT" value="1" enum="Side">
-			Identifier for the right face of the [code]CubeMap[/code].
+			Identifier for the right face of the [CubeMap].
 		</constant>
 		<constant name="SIDE_BOTTOM" value="2" enum="Side">
-			Identifier for the bottom face of the [code]CubeMap[/code].
+			Identifier for the bottom face of the [CubeMap].
 		</constant>
 		<constant name="SIDE_TOP" value="3" enum="Side">
-			Identifier for the top face of the [code]CubeMap[/code].
+			Identifier for the top face of the [CubeMap].
 		</constant>
 		<constant name="SIDE_FRONT" value="4" enum="Side">
-			Identifier for the front face of the [code]CubeMap[/code].
+			Identifier for the front face of the [CubeMap].
 		</constant>
 		<constant name="SIDE_BACK" value="5" enum="Side">
-			Identifier for the back face of the [code]CubeMap[/code].
+			Identifier for the back face of the [CubeMap].
 		</constant>
 		<constant name="FLAG_MIPMAPS" value="1" enum="Flags">
 			Generate mipmaps, to enable smooth zooming out of the texture.
diff --git a/doc/classes/CubeMesh.xml b/doc/classes/CubeMesh.xml
index cef412bbde..814c2f21c1 100644
--- a/doc/classes/CubeMesh.xml
+++ b/doc/classes/CubeMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CubeMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="CubeMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Generate an axis-aligned cuboid [PrimitiveMesh].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Curve.xml b/doc/classes/Curve.xml
index 490772e400..20afb03048 100644
--- a/doc/classes/Curve.xml
+++ b/doc/classes/Curve.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Curve" inherits="Resource" category="Core" version="3.1">
+<class name="Curve" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A mathematic curve.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_point">
 			<return type="int">
diff --git a/doc/classes/Curve2D.xml b/doc/classes/Curve2D.xml
index dd80ec8e8f..3631711a8f 100644
--- a/doc/classes/Curve2D.xml
+++ b/doc/classes/Curve2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Curve2D" inherits="Resource" category="Core" version="3.1">
+<class name="Curve2D" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Describes a Bezier curve in 2D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_point">
 			<return type="void">
@@ -124,7 +122,7 @@
 			</argument>
 			<description>
 				Returns a point within the curve at position [code]offset[/code], where [code]offset[/code] is measured as a pixel distance along the curve.
-				To do that, it finds the two cached points where the [code]offset[/code] lies between, then interpolates the values. This interpolation is cubic if [code]cubic[/code] is set to true, or linear if set to false.
+				To do that, it finds the two cached points where the [code]offset[/code] lies between, then interpolates the values. This interpolation is cubic if [code]cubic[/code] is set to [code]true[/code], or linear if set to [code]false[/code].
 				Cubic interpolation tends to follow the curves better, but linear is faster (and often, precise enough).
 			</description>
 		</method>
diff --git a/doc/classes/Curve3D.xml b/doc/classes/Curve3D.xml
index e9ee1c6974..7fda8aaa93 100644
--- a/doc/classes/Curve3D.xml
+++ b/doc/classes/Curve3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Curve3D" inherits="Resource" category="Core" version="3.1">
+<class name="Curve3D" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Describes a Bezier curve in 3D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_point">
 			<return type="void">
@@ -148,7 +146,7 @@
 			</argument>
 			<description>
 				Returns a point within the curve at position [code]offset[/code], where [code]offset[/code] is measured as a pixel distance along the curve.
-				To do that, it finds the two cached points where the [code]offset[/code] lies between, then interpolates the values. This interpolation is cubic if [code]cubic[/code] is set to true, or linear if set to false.
+				To do that, it finds the two cached points where the [code]offset[/code] lies between, then interpolates the values. This interpolation is cubic if [code]cubic[/code] is set to [code]true[/code], or linear if set to [code]false[/code].
 				Cubic interpolation tends to follow the curves better, but linear is faster (and often, precise enough).
 			</description>
 		</method>
diff --git a/doc/classes/CurveTexture.xml b/doc/classes/CurveTexture.xml
index 10e8a61f99..0184e1e6b6 100644
--- a/doc/classes/CurveTexture.xml
+++ b/doc/classes/CurveTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CurveTexture" inherits="Texture" category="Core" version="3.1">
+<class name="CurveTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		A texture that shows a curve.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CylinderMesh.xml b/doc/classes/CylinderMesh.xml
index 623830371a..fa0a3bf412 100644
--- a/doc/classes/CylinderMesh.xml
+++ b/doc/classes/CylinderMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CylinderMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="CylinderMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Class representing a cylindrical [PrimitiveMesh].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/CylinderShape.xml b/doc/classes/CylinderShape.xml
index a63cc8831e..847265ef25 100644
--- a/doc/classes/CylinderShape.xml
+++ b/doc/classes/CylinderShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CylinderShape" inherits="Shape" category="Core" version="3.1">
+<class name="CylinderShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Cylinder shape for collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/DampedSpringJoint2D.xml b/doc/classes/DampedSpringJoint2D.xml
index 12e29cec32..d6973848e2 100644
--- a/doc/classes/DampedSpringJoint2D.xml
+++ b/doc/classes/DampedSpringJoint2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="DampedSpringJoint2D" inherits="Joint2D" category="Core" version="3.1">
+<class name="DampedSpringJoint2D" inherits="Joint2D" category="Core" version="3.2">
 	<brief_description>
 		Damped spring constraint for 2D physics.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Dictionary.xml b/doc/classes/Dictionary.xml
index d87b029676..b6b17d03fb 100644
--- a/doc/classes/Dictionary.xml
+++ b/doc/classes/Dictionary.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Dictionary" category="Built-In Types" version="3.1">
+<class name="Dictionary" category="Built-In Types" version="3.2">
 	<brief_description>
 		Dictionary type.
 	</brief_description>
@@ -19,8 +19,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/scripting/gdscript/gdscript_basics.html#dictionary</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<description>
@@ -40,7 +38,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return true if the dictionary is empty.
+				Return [code]true[/code] if the dictionary is empty.
 			</description>
 		</method>
 		<method name="erase">
@@ -49,7 +47,7 @@
 			<argument index="0" name="key" type="Variant">
 			</argument>
 			<description>
-				Erase a dictionary key/value pair by key. Do not erase elements while iterating over the dictionary.
+				Erase a dictionary key/value pair by key. Returns [code]true[/code] if the given key was present in the dictionary, [code]false[/code] otherwise. Do not erase elements while iterating over the dictionary.
 			</description>
 		</method>
 		<method name="get">
@@ -60,7 +58,7 @@
 			<argument index="1" name="default" type="Variant" default="Null">
 			</argument>
 			<description>
-				Returns the current value for the specified key in the [code]Dictionary[/code]. If the key does not exist, the method returns the value of the optional default argument, or Null if it is omitted.
+				Returns the current value for the specified key in the [Dictionary]. If the key does not exist, the method returns the value of the optional default argument, or Null if it is omitted.
 			</description>
 		</method>
 		<method name="has">
@@ -69,7 +67,7 @@
 			<argument index="0" name="key" type="Variant">
 			</argument>
 			<description>
-				Return true if the dictionary has a given key.
+				Return [code]true[/code] if the dictionary has a given key.
 			</description>
 		</method>
 		<method name="has_all">
@@ -78,7 +76,7 @@
 			<argument index="0" name="keys" type="Array">
 			</argument>
 			<description>
-				Return true if the dictionary has all of the keys in the given array.
+				Return [code]true[/code] if the dictionary has all of the keys in the given array.
 			</description>
 		</method>
 		<method name="hash">
@@ -92,7 +90,7 @@
 			<return type="Array">
 			</return>
 			<description>
-				Return the list of keys in the [code]Dictionary[/code].
+				Return the list of keys in the [Dictionary].
 			</description>
 		</method>
 		<method name="size">
@@ -106,7 +104,7 @@
 			<return type="Array">
 			</return>
 			<description>
-				Return the list of values in the [code]Dictionary[/code].
+				Return the list of values in the [Dictionary].
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/DirectionalLight.xml b/doc/classes/DirectionalLight.xml
index 4a2802ffa4..c6650a1641 100644
--- a/doc/classes/DirectionalLight.xml
+++ b/doc/classes/DirectionalLight.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="DirectionalLight" inherits="Light" category="Core" version="3.1">
+<class name="DirectionalLight" inherits="Light" category="Core" version="3.2">
 	<brief_description>
 		Directional light from a distance, as from the Sun.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/lights_and_shadows.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Directory.xml b/doc/classes/Directory.xml
index 57301f954f..8a81695198 100644
--- a/doc/classes/Directory.xml
+++ b/doc/classes/Directory.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Directory" inherits="Reference" category="Core" version="3.1">
+<class name="Directory" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Type used to handle the filesystem.
 	</brief_description>
@@ -25,8 +25,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/step_by_step/filesystem.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="change_dir">
 			<return type="int" enum="Error">
diff --git a/doc/classes/DynamicFont.xml b/doc/classes/DynamicFont.xml
index 249d0955f2..5fdc1ebb75 100644
--- a/doc/classes/DynamicFont.xml
+++ b/doc/classes/DynamicFont.xml
@@ -1,15 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="DynamicFont" inherits="Font" category="Core" version="3.1">
+<class name="DynamicFont" inherits="Font" category="Core" version="3.2">
 	<brief_description>
 		DynamicFont renders vector font files at runtime.
 	</brief_description>
 	<description>
 		DynamicFont renders vector font files (such as TTF or OTF) dynamically at runtime instead of using a prerendered texture atlas like [BitmapFont]. This trades the faster loading time of [BitmapFont]s for the ability to change font parameters like size and spacing during runtime. [DynamicFontData] is used for referencing the font file paths.
+		[codeblock]
+		var dynamic_font = DynamicFont.new()
+		dynamic_font.font_data = load("res://BarlowCondensed-Bold.ttf")
+		dynamic_font.size = 64
+		$"Label".set("custom_fonts/font", dynamic_font)
+		[/codeblock]
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_fallback">
 			<return type="void">
diff --git a/doc/classes/DynamicFontData.xml b/doc/classes/DynamicFontData.xml
index 5fcccf7db9..8eff5fb993 100644
--- a/doc/classes/DynamicFontData.xml
+++ b/doc/classes/DynamicFontData.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="DynamicFontData" inherits="Resource" category="Core" version="3.1">
+<class name="DynamicFontData" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Used with [DynamicFont] to describe the location of a font file.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/EditorExportPlugin.xml b/doc/classes/EditorExportPlugin.xml
index a6b72d08ff..998b05d495 100644
--- a/doc/classes/EditorExportPlugin.xml
+++ b/doc/classes/EditorExportPlugin.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorExportPlugin" inherits="Reference" category="Core" version="3.1">
+<class name="EditorExportPlugin" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_export_begin" qualifiers="virtual">
 			<return type="void">
diff --git a/doc/classes/EditorFeatureProfile.xml b/doc/classes/EditorFeatureProfile.xml
new file mode 100644
index 0000000000..410b71a43e
--- /dev/null
+++ b/doc/classes/EditorFeatureProfile.xml
@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="EditorFeatureProfile" inherits="Reference" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="get_feature_name">
+			<return type="String">
+			</return>
+			<argument index="0" name="feature" type="int" enum="EditorFeatureProfile.Feature">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="is_class_disabled" qualifiers="const">
+			<return type="bool">
+			</return>
+			<argument index="0" name="class_name" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="is_class_editor_disabled" qualifiers="const">
+			<return type="bool">
+			</return>
+			<argument index="0" name="class_name" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="is_class_property_disabled" qualifiers="const">
+			<return type="bool">
+			</return>
+			<argument index="0" name="class_name" type="String">
+			</argument>
+			<argument index="1" name="arg1" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="is_feature_disabled" qualifiers="const">
+			<return type="bool">
+			</return>
+			<argument index="0" name="feature" type="int" enum="EditorFeatureProfile.Feature">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="load_from_file">
+			<return type="int" enum="Error">
+			</return>
+			<argument index="0" name="path" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="save_to_file">
+			<return type="int" enum="Error">
+			</return>
+			<argument index="0" name="path" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="set_disable_class">
+			<return type="void">
+			</return>
+			<argument index="0" name="class_name" type="String">
+			</argument>
+			<argument index="1" name="disable" type="bool">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="set_disable_class_editor">
+			<return type="void">
+			</return>
+			<argument index="0" name="class_name" type="String">
+			</argument>
+			<argument index="1" name="disable" type="bool">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="set_disable_class_property">
+			<return type="void">
+			</return>
+			<argument index="0" name="class_name" type="String">
+			</argument>
+			<argument index="1" name="property" type="String">
+			</argument>
+			<argument index="2" name="arg2" type="bool">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="set_disable_feature">
+			<return type="void">
+			</return>
+			<argument index="0" name="feature" type="int" enum="EditorFeatureProfile.Feature">
+			</argument>
+			<argument index="1" name="disable" type="bool">
+			</argument>
+			<description>
+			</description>
+		</method>
+	</methods>
+	<constants>
+		<constant name="FEATURE_3D" value="0" enum="Feature">
+		</constant>
+		<constant name="FEATURE_SCRIPT" value="1" enum="Feature">
+		</constant>
+		<constant name="FEATURE_ASSET_LIB" value="2" enum="Feature">
+		</constant>
+		<constant name="FEATURE_SCENE_TREE" value="3" enum="Feature">
+		</constant>
+		<constant name="FEATURE_IMPORT_DOCK" value="4" enum="Feature">
+		</constant>
+		<constant name="FEATURE_NODE_DOCK" value="5" enum="Feature">
+		</constant>
+		<constant name="FEATURE_FILESYSTEM_DOCK" value="6" enum="Feature">
+		</constant>
+		<constant name="FEATURE_MAX" value="7" enum="Feature">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/EditorFileDialog.xml b/doc/classes/EditorFileDialog.xml
index fc5a26fc33..15271b8050 100644
--- a/doc/classes/EditorFileDialog.xml
+++ b/doc/classes/EditorFileDialog.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorFileDialog" inherits="ConfirmationDialog" category="Core" version="3.1">
+<class name="EditorFileDialog" inherits="ConfirmationDialog" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_filter">
 			<return type="void">
@@ -15,7 +13,7 @@
 			<argument index="0" name="filter" type="String">
 			</argument>
 			<description>
-				Adds a comma-delimited file extension filter option to the [code]EditorFileDialog[/code] with an optional semi-colon-delimited label.
+				Adds a comma-delimited file extension filter option to the [EditorFileDialog] with an optional semi-colon-delimited label.
 				Example: "*.tscn, *.scn; Scenes", results in filter text "Scenes (*.tscn, *.scn)".
 			</description>
 		</method>
@@ -37,7 +35,7 @@
 			<return type="void">
 			</return>
 			<description>
-				Notify the [code]EditorFileDialog[/code] that its view of the data is no longer accurate. Updates the view contents on next view update.
+				Notify the [EditorFileDialog] that its view of the data is no longer accurate. Updates the view contents on next view update.
 			</description>
 		</method>
 	</methods>
@@ -55,16 +53,16 @@
 			The file system path in the address bar.
 		</member>
 		<member name="disable_overwrite_warning" type="bool" setter="set_disable_overwrite_warning" getter="is_overwrite_warning_disabled">
-			If [code]true[/code], the [code]EditorFileDialog[/code] will not warn the user before overwriting files.
+			If [code]true[/code], the [EditorFileDialog] will not warn the user before overwriting files.
 		</member>
 		<member name="display_mode" type="int" setter="set_display_mode" getter="get_display_mode" enum="EditorFileDialog.DisplayMode">
-			The view format in which the [code]EditorFileDialog[/code] displays resources to the user.
+			The view format in which the [EditorFileDialog] displays resources to the user.
 		</member>
 		<member name="mode" type="int" setter="set_mode" getter="get_mode" enum="EditorFileDialog.Mode">
-			The purpose of the [code]EditorFileDialog[/code]. Changes allowed behaviors.
+			The purpose of the [EditorFileDialog]. Changes allowed behaviors.
 		</member>
 		<member name="show_hidden_files" type="bool" setter="set_show_hidden_files" getter="is_showing_hidden_files">
-			If [code]true[/code], hidden files and directories will be visible in the [code]EditorFileDialog[/code].
+			If [code]true[/code], hidden files and directories will be visible in the [EditorFileDialog].
 		</member>
 	</members>
 	<signals>
@@ -92,34 +90,34 @@
 	</signals>
 	<constants>
 		<constant name="MODE_OPEN_FILE" value="0" enum="Mode">
-			The [code]EditorFileDialog[/code] can select only one file. Accepting the window will open the file.
+			The [EditorFileDialog] can select only one file. Accepting the window will open the file.
 		</constant>
 		<constant name="MODE_OPEN_FILES" value="1" enum="Mode">
-			The [code]EditorFileDialog[/code] can select multiple files. Accepting the window will open all files.
+			The [EditorFileDialog] can select multiple files. Accepting the window will open all files.
 		</constant>
 		<constant name="MODE_OPEN_DIR" value="2" enum="Mode">
-			The [code]EditorFileDialog[/code] can select only one directory. Accepting the window will open the directory.
+			The [EditorFileDialog] can select only one directory. Accepting the window will open the directory.
 		</constant>
 		<constant name="MODE_OPEN_ANY" value="3" enum="Mode">
-			The [code]EditorFileDialog[/code] can select a file or directory. Accepting the window will open it.
+			The [EditorFileDialog] can select a file or directory. Accepting the window will open it.
 		</constant>
 		<constant name="MODE_SAVE_FILE" value="4" enum="Mode">
-			The [code]EditorFileDialog[/code] can select only one file. Accepting the window will save the file.
+			The [EditorFileDialog] can select only one file. Accepting the window will save the file.
 		</constant>
 		<constant name="ACCESS_RESOURCES" value="0" enum="Access">
-			The [code]EditorFileDialog[/code] can only view [code]res://[/code] directory contents.
+			The [EditorFileDialog] can only view [code]res://[/code] directory contents.
 		</constant>
 		<constant name="ACCESS_USERDATA" value="1" enum="Access">
-			The [code]EditorFileDialog[/code] can only view [code]user://[/code] directory contents.
+			The [EditorFileDialog] can only view [code]user://[/code] directory contents.
 		</constant>
 		<constant name="ACCESS_FILESYSTEM" value="2" enum="Access">
-			The [code]EditorFileDialog[/code] can view the entire local file system.
+			The [EditorFileDialog] can view the entire local file system.
 		</constant>
 		<constant name="DISPLAY_THUMBNAILS" value="0" enum="DisplayMode">
-			The [code]EditorFileDialog[/code] displays resources as thumbnails.
+			The [EditorFileDialog] displays resources as thumbnails.
 		</constant>
 		<constant name="DISPLAY_LIST" value="1" enum="DisplayMode">
-			The [code]EditorFileDialog[/code] displays resources as a list of filenames.
+			The [EditorFileDialog] displays resources as a list of filenames.
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/EditorFileSystem.xml b/doc/classes/EditorFileSystem.xml
index 91e5bd81c3..531af4c4e0 100644
--- a/doc/classes/EditorFileSystem.xml
+++ b/doc/classes/EditorFileSystem.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorFileSystem" inherits="Node" category="Core" version="3.1">
+<class name="EditorFileSystem" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Resource filesystem, as the editor sees it.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_file_type" qualifiers="const">
 			<return type="String">
@@ -47,7 +45,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return true of the filesystem is being scanned.
+				Return [code]true[/code] of the filesystem is being scanned.
 			</description>
 		</method>
 		<method name="scan">
diff --git a/doc/classes/EditorFileSystemDirectory.xml b/doc/classes/EditorFileSystemDirectory.xml
index 9dd28d2400..c7920c6ed6 100644
--- a/doc/classes/EditorFileSystemDirectory.xml
+++ b/doc/classes/EditorFileSystemDirectory.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorFileSystemDirectory" inherits="Object" category="Core" version="3.1">
+<class name="EditorFileSystemDirectory" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		A directory for the resource filesystem.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="find_dir_index" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/EditorImportPlugin.xml b/doc/classes/EditorImportPlugin.xml
index 9005d4a765..c3f38e9e20 100644
--- a/doc/classes/EditorImportPlugin.xml
+++ b/doc/classes/EditorImportPlugin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorImportPlugin" inherits="Reference" category="Core" version="3.1">
+<class name="EditorImportPlugin" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Registers a custom resource importer in the editor. Use the class to parse any file and import it as a new resource type.
 	</brief_description>
@@ -51,8 +51,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/plugins/editor/import_plugins.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_import_options" qualifiers="virtual">
 			<return type="Array">
diff --git a/doc/classes/EditorInspector.xml b/doc/classes/EditorInspector.xml
index 5601f9b5ae..cf14183099 100644
--- a/doc/classes/EditorInspector.xml
+++ b/doc/classes/EditorInspector.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorInspector" inherits="ScrollContainer" category="Core" version="3.1">
+<class name="EditorInspector" inherits="ScrollContainer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="refresh">
 			<return type="void">
diff --git a/doc/classes/EditorInspectorPlugin.xml b/doc/classes/EditorInspectorPlugin.xml
index 9bda768b14..f2dcd2177c 100644
--- a/doc/classes/EditorInspectorPlugin.xml
+++ b/doc/classes/EditorInspectorPlugin.xml
@@ -1,13 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorInspectorPlugin" inherits="Reference" category="Core" version="3.1">
+<class name="EditorInspectorPlugin" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
+		Plugin for adding custom property editors on inspector.
 	</brief_description>
 	<description>
+		This plugins allows adding custom property editors to [EditorInspector].
+		Plugins are registered via [method EditorPlugin.add_inspector_plugin].
+		When an object is edited, the [method can_handle] function is called and must return true if the object type is supported.
+		If supported, the function [method parse_begin] will be called, allowing to place custom controls at the beginning of the class.
+		Subsequently, the [method parse_category] and [method parse_property] are called for every category and property. They offer the ability to add custom controls to the inspector too.
+		Finally [method parse_end] will be called.
+		On each of these calls, the "add" functions can be called.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_custom_control">
 			<return type="void">
@@ -15,6 +21,7 @@
 			<argument index="0" name="control" type="Control">
 			</argument>
 			<description>
+				Add a custom control, not necesarily a property editor.
 			</description>
 		</method>
 		<method name="add_property_editor">
@@ -25,6 +32,7 @@
 			<argument index="1" name="editor" type="Control">
 			</argument>
 			<description>
+				Add a property editor, this must inherit [EditorProperty].
 			</description>
 		</method>
 		<method name="add_property_editor_for_multiple_properties">
@@ -37,6 +45,7 @@
 			<argument index="2" name="editor" type="Control">
 			</argument>
 			<description>
+				Add am editor that allows modifying multiple properties, this must inherit [EditorProperty].
 			</description>
 		</method>
 		<method name="can_handle" qualifiers="virtual">
@@ -45,6 +54,7 @@
 			<argument index="0" name="object" type="Object">
 			</argument>
 			<description>
+				Return true if this object can be handled by this plugin.
 			</description>
 		</method>
 		<method name="parse_begin" qualifiers="virtual">
@@ -53,6 +63,7 @@
 			<argument index="0" name="object" type="Object">
 			</argument>
 			<description>
+				Called to allow adding controls at the beginning of the list.
 			</description>
 		</method>
 		<method name="parse_category" qualifiers="virtual">
@@ -63,12 +74,14 @@
 			<argument index="1" name="category" type="String">
 			</argument>
 			<description>
+				Called to allow adding controls at the beginning of the category.
 			</description>
 		</method>
 		<method name="parse_end" qualifiers="virtual">
 			<return type="void">
 			</return>
 			<description>
+				Called to allow adding controls at the end of the list.
 			</description>
 		</method>
 		<method name="parse_property" qualifiers="virtual">
@@ -87,6 +100,7 @@
 			<argument index="5" name="usage" type="int">
 			</argument>
 			<description>
+				Called to allow adding property specific editors to the inspector. Usually these inherit [EditorProperty]
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/EditorInterface.xml b/doc/classes/EditorInterface.xml
index c7b81d7c75..ecbb5da10c 100644
--- a/doc/classes/EditorInterface.xml
+++ b/doc/classes/EditorInterface.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorInterface" inherits="Node" category="Core" version="3.1">
+<class name="EditorInterface" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Godot editor's interface.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="edit_resource">
 			<return type="void">
@@ -48,6 +46,12 @@
 				Returns the editor [Viewport].
 			</description>
 		</method>
+		<method name="get_inspector" qualifiers="const">
+			<return type="EditorInspector">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_open_scenes" qualifiers="const">
 			<return type="Array">
 			</return>
diff --git a/doc/classes/EditorPlugin.xml b/doc/classes/EditorPlugin.xml
index bcf6d3009c..7981c90f86 100644
--- a/doc/classes/EditorPlugin.xml
+++ b/doc/classes/EditorPlugin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorPlugin" inherits="Node" category="Core" version="3.1">
+<class name="EditorPlugin" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Used by the editor to extend its functionality.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/plugins/editor/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_autoload_singleton">
 			<return type="void">
@@ -294,14 +292,14 @@
 			<argument index="0" name="object" type="Object">
 			</argument>
 			<description>
-				Implement this function if your plugin edits a specific type of object (Resource or Node). If you return true, then you will get the functions [method EditorPlugin.edit] and [method EditorPlugin.make_visible] called when the editor requests them. If you have declared the methods [method forward_canvas_gui_input] and [method forward_spatial_gui_input] these will be called too.
+				Implement this function if your plugin edits a specific type of object (Resource or Node). If you return [code]true[/code], then you will get the functions [method EditorPlugin.edit] and [method EditorPlugin.make_visible] called when the editor requests them. If you have declared the methods [method forward_canvas_gui_input] and [method forward_spatial_gui_input] these will be called too.
 			</description>
 		</method>
 		<method name="has_main_screen" qualifiers="virtual">
 			<return type="bool">
 			</return>
 			<description>
-				Return true if this is a main screen editor plugin (it goes in the workspaces selector together with '2D', '3D', and 'Script').
+				Return [code]true[/code] if this is a main screen editor plugin (it goes in the workspaces selector together with '2D', '3D', and 'Script').
 			</description>
 		</method>
 		<method name="hide_bottom_panel">
diff --git a/doc/classes/EditorProperty.xml b/doc/classes/EditorProperty.xml
index b3fc036edb..735c270279 100644
--- a/doc/classes/EditorProperty.xml
+++ b/doc/classes/EditorProperty.xml
@@ -1,14 +1,23 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorProperty" inherits="Container" category="Core" version="3.1">
+<class name="EditorProperty" inherits="Container" category="Core" version="3.2">
 	<brief_description>
+		Custom control to edit properties for adding into the inspector
 	</brief_description>
 	<description>
+		This control allows property editing for one or multiple properties into [EditorInspector]. It is added via [EditorInspectorPlugin].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
+		<method name="add_focusable">
+			<return type="void">
+			</return>
+			<argument index="0" name="control" type="Control">
+			</argument>
+			<description>
+				If any of the controls added can gain keyboard focus, add it here. This ensures that focus will be restored if the inspector is refreshed.
+			</description>
+		</method>
 		<method name="emit_changed">
 			<return type="void">
 			</return>
@@ -21,45 +30,65 @@
 			<argument index="3" name="changing" type="bool" default="false">
 			</argument>
 			<description>
+				If one (or many properties) changed, this must be called. "Field" is used in case your editor can modify fields separately (as an example, Vector3.x). The "changing" argument avoids the editor requesting this property to be refreshed (leave as false if unsure).
 			</description>
 		</method>
 		<method name="get_edited_object">
 			<return type="Object">
 			</return>
 			<description>
+				Get the edited object.
 			</description>
 		</method>
 		<method name="get_edited_property">
 			<return type="String">
 			</return>
 			<description>
+				Get the edited property. If your editor is for a single property (added via [method EditorInspectorPlugin.parse_property]), then this will return it..
 			</description>
 		</method>
 		<method name="get_tooltip_text" qualifiers="const">
 			<return type="String">
 			</return>
 			<description>
+				Override if you want to allow a custom tooltip over your property.
+			</description>
+		</method>
+		<method name="set_bottom_editor">
+			<return type="void">
+			</return>
+			<argument index="0" name="editor" type="Control">
+			</argument>
+			<description>
+				Add controls with this function if you want them on the bottom (below the label).
 			</description>
 		</method>
 		<method name="update_property" qualifiers="virtual">
 			<return type="void">
 			</return>
 			<description>
+				When this virtual function is called, you must update your editor.
 			</description>
 		</method>
 	</methods>
 	<members>
 		<member name="checkable" type="bool" setter="set_checkable" getter="is_checkable">
+			Used by the inspector, set when property is checkable.
 		</member>
 		<member name="checked" type="bool" setter="set_checked" getter="is_checked">
+			Used by the inspector, when the property is checked.
 		</member>
 		<member name="draw_red" type="bool" setter="set_draw_red" getter="is_draw_red">
+			Used by the inspector, when the property must draw with error color.
 		</member>
 		<member name="keying" type="bool" setter="set_keying" getter="is_keying">
+			Used by the inspector, when the property can add keys for animation/
 		</member>
 		<member name="label" type="String" setter="set_label" getter="get_label">
+			Set this property to change the label (if you want to show one)
 		</member>
 		<member name="read_only" type="bool" setter="set_read_only" getter="is_read_only">
+			Used by the inspector, when the property is read-only.
 		</member>
 	</members>
 	<signals>
@@ -69,6 +98,7 @@
 			<argument index="1" name="value" type="Array">
 			</argument>
 			<description>
+				Emit yourself if you want multiple properties modified at the same time. Do not use if added via [method EditorInspectorPlugin.parse_property]
 			</description>
 		</signal>
 		<signal name="object_id_selected">
@@ -77,6 +107,7 @@
 			<argument index="1" name="id" type="int">
 			</argument>
 			<description>
+				Used by sub-inspectors. Emit if what was selected was an Object ID.
 			</description>
 		</signal>
 		<signal name="property_changed">
@@ -85,6 +116,7 @@
 			<argument index="1" name="value" type="Nil">
 			</argument>
 			<description>
+				Do not emit this manually, use the [method emit_changed] method instead.
 			</description>
 		</signal>
 		<signal name="property_checked">
@@ -93,12 +125,14 @@
 			<argument index="1" name="bool" type="String">
 			</argument>
 			<description>
+				Used internally, when a property was checked.
 			</description>
 		</signal>
 		<signal name="property_keyed">
 			<argument index="0" name="property" type="String">
 			</argument>
 			<description>
+				Emit if you want to add this value as an animation key (check keying being enabled first).
 			</description>
 		</signal>
 		<signal name="property_keyed_with_value">
@@ -107,6 +141,7 @@
 			<argument index="1" name="value" type="Nil">
 			</argument>
 			<description>
+				Emit if you want to key a property with a single value.
 			</description>
 		</signal>
 		<signal name="resource_selected">
@@ -115,6 +150,7 @@
 			<argument index="1" name="resource" type="Resource">
 			</argument>
 			<description>
+				If you want a sub-resource to be edited, emit this signal with the resource.
 			</description>
 		</signal>
 		<signal name="selected">
@@ -123,6 +159,7 @@
 			<argument index="1" name="focusable_idx" type="int">
 			</argument>
 			<description>
+				Internal, used when selected.
 			</description>
 		</signal>
 	</signals>
diff --git a/doc/classes/EditorResourceConversionPlugin.xml b/doc/classes/EditorResourceConversionPlugin.xml
index ad0b7b0586..2638836c68 100644
--- a/doc/classes/EditorResourceConversionPlugin.xml
+++ b/doc/classes/EditorResourceConversionPlugin.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorResourceConversionPlugin" inherits="Reference" category="Core" version="3.1">
+<class name="EditorResourceConversionPlugin" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_convert" qualifiers="virtual">
 			<return type="Resource">
diff --git a/doc/classes/EditorResourcePreview.xml b/doc/classes/EditorResourcePreview.xml
index 3b3e8a8369..8de905e710 100644
--- a/doc/classes/EditorResourcePreview.xml
+++ b/doc/classes/EditorResourcePreview.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorResourcePreview" inherits="Node" category="Core" version="3.1">
+<class name="EditorResourcePreview" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Helper to generate previews of resources or files.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_preview_generator">
 			<return type="void">
diff --git a/doc/classes/EditorResourcePreviewGenerator.xml b/doc/classes/EditorResourcePreviewGenerator.xml
index c4dcbbbc82..6592ffd1a8 100644
--- a/doc/classes/EditorResourcePreviewGenerator.xml
+++ b/doc/classes/EditorResourcePreviewGenerator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorResourcePreviewGenerator" inherits="Reference" category="Core" version="3.1">
+<class name="EditorResourcePreviewGenerator" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Custom generator of previews.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="generate" qualifiers="virtual">
 			<return type="Texture">
diff --git a/doc/classes/EditorSceneImporter.xml b/doc/classes/EditorSceneImporter.xml
index 6394dfdfe9..4707543c91 100644
--- a/doc/classes/EditorSceneImporter.xml
+++ b/doc/classes/EditorSceneImporter.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorSceneImporter" inherits="Reference" category="Core" version="3.1">
+<class name="EditorSceneImporter" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_get_extensions" qualifiers="virtual">
 			<return type="Array">
diff --git a/doc/classes/EditorSceneImporterAssimp.xml b/doc/classes/EditorSceneImporterAssimp.xml
new file mode 100644
index 0000000000..b1f397e2b9
--- /dev/null
+++ b/doc/classes/EditorSceneImporterAssimp.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="EditorSceneImporterAssimp" inherits="EditorSceneImporter" category="Core" version="3.2">
+	<brief_description>
+		This is a multi-format 3d asset importer.
+	</brief_description>
+	<description>
+		This is a multi-format 3d asset importer.
+		Use these FBX export settings from Autodesk Maya.
+		[codeblock]
+		* Smoothing Groups
+		* Smooth Mesh
+		* Triangluate (For mesh with blendshapes)
+		* Bake Animation
+		* Resample All
+		* Deformed Models
+		* Skins
+		* Blend Shapes
+		* Curve Filters
+		* Constant Key Reducer
+		* Auto Tangents Only
+		* DO NOT CHECK Constraints (Will Break File)
+		* Can check Embed Media (Embeds textures into FBX file to import)
+		-- Note: When importing embed media, texture and mesh will be a un-alterable file.
+		--       Reimport of fbx with updated texture is need if texture is updated.
+		* Units: Centimeters
+		* Up Axis: Y
+		* Binary format in FBX 2017
+		[/codeblock]
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/EditorScenePostImport.xml b/doc/classes/EditorScenePostImport.xml
index e69f3b0119..3b0590f78c 100644
--- a/doc/classes/EditorScenePostImport.xml
+++ b/doc/classes/EditorScenePostImport.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorScenePostImport" inherits="Reference" category="Core" version="3.1">
+<class name="EditorScenePostImport" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Post process scenes after import
 	</brief_description>
@@ -28,8 +28,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/workflow/assets/importing_scenes.html#custom-script</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_source_file" qualifiers="const">
 			<return type="String">
diff --git a/doc/classes/EditorScript.xml b/doc/classes/EditorScript.xml
index 1c22095b37..52d7ce3f17 100644
--- a/doc/classes/EditorScript.xml
+++ b/doc/classes/EditorScript.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorScript" inherits="Reference" category="Core" version="3.1">
+<class name="EditorScript" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Base script that can be used to add extension functions to the editor.
 	</brief_description>
@@ -17,8 +17,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_run" qualifiers="virtual">
 			<return type="void">
diff --git a/doc/classes/EditorSelection.xml b/doc/classes/EditorSelection.xml
index 4edd8583a0..336390b2b1 100644
--- a/doc/classes/EditorSelection.xml
+++ b/doc/classes/EditorSelection.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorSelection" inherits="Object" category="Core" version="3.1">
+<class name="EditorSelection" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Manages the SceneTree selection in the editor.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_node">
 			<return type="void">
diff --git a/doc/classes/EditorSettings.xml b/doc/classes/EditorSettings.xml
index 9d48669a6b..7d38031a4c 100644
--- a/doc/classes/EditorSettings.xml
+++ b/doc/classes/EditorSettings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorSettings" inherits="Resource" category="Core" version="3.1">
+<class name="EditorSettings" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Object that holds the project-independent editor settings.
 	</brief_description>
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_property_info">
 			<return type="void">
diff --git a/doc/classes/EditorSpatialGizmo.xml b/doc/classes/EditorSpatialGizmo.xml
index 0bec11e183..da7fee1cf7 100644
--- a/doc/classes/EditorSpatialGizmo.xml
+++ b/doc/classes/EditorSpatialGizmo.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorSpatialGizmo" inherits="SpatialGizmo" category="Core" version="3.1">
+<class name="EditorSpatialGizmo" inherits="SpatialGizmo" category="Core" version="3.2">
 	<brief_description>
 		Custom gizmo for editing Spatial objects.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_collision_segments">
 			<return type="void">
@@ -99,7 +97,7 @@
 			</argument>
 			<description>
 				Commit a handle being edited (handles must have been previously added by [method add_handles]).
-				If the cancel parameter is true, an option to restore the edited value to the original is provided.
+				If the cancel parameter is [code]true[/code], an option to restore the edited value to the original is provided.
 			</description>
 		</method>
 		<method name="get_handle_name" qualifiers="virtual">
diff --git a/doc/classes/EditorSpatialGizmoPlugin.xml b/doc/classes/EditorSpatialGizmoPlugin.xml
index d49a50893d..40d6376ca3 100644
--- a/doc/classes/EditorSpatialGizmoPlugin.xml
+++ b/doc/classes/EditorSpatialGizmoPlugin.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorSpatialGizmoPlugin" inherits="Resource" category="Core" version="3.1">
+<class name="EditorSpatialGizmoPlugin" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Used by the editor to define Spatial gizmo types.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/plugins/editor/spatial_gizmos.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_material">
 			<return type="void">
@@ -27,7 +25,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Override this method to define whether the gizmo can be hidden or not. Defaults to true.
+				Override this method to define whether the gizmo can be hidden or not. Defaults to [code]true[/code].
 			</description>
 		</method>
 		<method name="commit_handle" qualifiers="virtual">
diff --git a/doc/classes/EncodedObjectAsID.xml b/doc/classes/EncodedObjectAsID.xml
index 8e6a117ea2..1822f6c199 100644
--- a/doc/classes/EncodedObjectAsID.xml
+++ b/doc/classes/EncodedObjectAsID.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="EncodedObjectAsID" inherits="Reference" category="Core" version="3.1">
+<class name="EncodedObjectAsID" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_object_id" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/Engine.xml b/doc/classes/Engine.xml
index d947784676..ac46d34198 100644
--- a/doc/classes/Engine.xml
+++ b/doc/classes/Engine.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Engine" inherits="Object" category="Core" version="3.1">
+<class name="Engine" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Access to basic engine properties.
 	</brief_description>
 	<description>
-		The [code]Engine[/code] class allows you to query and modify the game's run-time parameters, such as frames per second, time scale, and others.
+		The [Engine] class allows you to query and modify the game's run-time parameters, such as frames per second, time scale, and others.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_author_info" qualifiers="const">
 			<return type="Dictionary">
diff --git a/doc/classes/Environment.xml b/doc/classes/Environment.xml
index ced9ab7269..5f8dc552d7 100644
--- a/doc/classes/Environment.xml
+++ b/doc/classes/Environment.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Environment" inherits="Resource" category="Core" version="3.1">
+<class name="Environment" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Resource for environment nodes (like [WorldEnvironment]) that define multiple rendering options.
 	</brief_description>
@@ -15,8 +15,6 @@
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/environment_and_post_processing.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/high_dynamic_range.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -30,7 +28,7 @@
 			Global contrast value of the rendered scene (default value is 1).
 		</member>
 		<member name="adjustment_enabled" type="bool" setter="set_adjustment_enable" getter="is_adjustment_enabled">
-			Enables the adjustment_* options provided by this resource. If false, adjustments modifications will have no effect on the rendered scene.
+			Enables the adjustment_* options provided by this resource. If [code]false[/code], adjustments modifications will have no effect on the rendered scene.
 		</member>
 		<member name="adjustment_saturation" type="float" setter="set_adjustment_saturation" getter="get_adjustment_saturation">
 			Global color saturation value of the rendered scene (default value is 1).
diff --git a/doc/classes/Expression.xml b/doc/classes/Expression.xml
index 78623b359e..464ed44ecd 100644
--- a/doc/classes/Expression.xml
+++ b/doc/classes/Expression.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Expression" inherits="Reference" category="Core" version="3.1">
+<class name="Expression" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		A class that stores an expression you can execute.
 	</brief_description>
@@ -25,8 +25,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="execute">
 			<return type="Variant">
diff --git a/doc/classes/File.xml b/doc/classes/File.xml
index c9a8f18116..30da143f88 100644
--- a/doc/classes/File.xml
+++ b/doc/classes/File.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="File" inherits="Reference" category="Core" version="3.1">
+<class name="File" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Type to handle file reading and writing operations.
 	</brief_description>
@@ -24,8 +24,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/step_by_step/filesystem.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="close">
 			<return type="void">
@@ -84,6 +82,7 @@
 			</return>
 			<description>
 				Returns the whole file as a [String].
+				Text is interpreted as being UTF-8 encoded.
 			</description>
 		</method>
 		<method name="get_buffer" qualifiers="const">
@@ -102,6 +101,7 @@
 			</argument>
 			<description>
 				Returns the next value of the file in CSV (Comma Separated Values) format. You can pass a different delimiter to use other than the default "," (comma), it should be one character long.
+				Text is interpreted as being UTF-8 encoded.
 			</description>
 		</method>
 		<method name="get_double" qualifiers="const">
@@ -137,6 +137,7 @@
 			</return>
 			<description>
 				Returns the next line of the file as a [String].
+				Text is interpreted as being UTF-8 encoded.
 			</description>
 		</method>
 		<method name="get_md5" qualifiers="const">
@@ -162,6 +163,7 @@
 			</return>
 			<description>
 				Returns a [String] saved in Pascal format from the file.
+				Text is interpreted as being UTF-8 encoded.
 			</description>
 		</method>
 		<method name="get_path" qualifiers="const">
@@ -204,8 +206,11 @@
 		<method name="get_var" qualifiers="const">
 			<return type="Variant">
 			</return>
+			<argument index="0" name="allow_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Returns the next [Variant] value from the file.
+				Returns the next [Variant] value from the file. When [code]allow_objects[/code] is [code]true[/code] decoding objects is allowed.
+				[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
 			</description>
 		</method>
 		<method name="is_open" qualifiers="const">
@@ -220,7 +225,7 @@
 			</return>
 			<argument index="0" name="path" type="String">
 			</argument>
-			<argument index="1" name="flags" type="int">
+			<argument index="1" name="flags" type="int" enum="File.ModeFlags">
 			</argument>
 			<description>
 				Opens the file for writing or reading, depending on the flags.
@@ -231,9 +236,9 @@
 			</return>
 			<argument index="0" name="path" type="String">
 			</argument>
-			<argument index="1" name="mode_flags" type="int">
+			<argument index="1" name="mode_flags" type="int" enum="File.ModeFlags">
 			</argument>
-			<argument index="2" name="compression_mode" type="int" default="0">
+			<argument index="2" name="compression_mode" type="int" enum="File.CompressionMode" default="0">
 			</argument>
 			<description>
 				Opens a compressed file for reading or writing. Use COMPRESSION_* constants to set [code]compression_mode[/code].
@@ -244,7 +249,7 @@
 			</return>
 			<argument index="0" name="path" type="String">
 			</argument>
-			<argument index="1" name="mode_flags" type="int">
+			<argument index="1" name="mode_flags" type="int" enum="File.ModeFlags">
 			</argument>
 			<argument index="2" name="key" type="PoolByteArray">
 			</argument>
@@ -257,7 +262,7 @@
 			</return>
 			<argument index="0" name="path" type="String">
 			</argument>
-			<argument index="1" name="mode_flags" type="int">
+			<argument index="1" name="mode_flags" type="int" enum="File.ModeFlags">
 			</argument>
 			<argument index="2" name="pass" type="String">
 			</argument>
@@ -337,6 +342,7 @@
 			</argument>
 			<description>
 				Store the given [PoolStringArray] in the file as a line formatted in the CSV (Comma Separated Values) format. You can pass a different delimiter to use other than the default "," (comma), it should be one character long.
+				Text will be encoded as UTF-8.
 			</description>
 		</method>
 		<method name="store_double">
@@ -364,6 +370,7 @@
 			</argument>
 			<description>
 				Stores the given [String] as a line in the file.
+				Text will be encoded as UTF-8.
 			</description>
 		</method>
 		<method name="store_pascal_string">
@@ -373,6 +380,7 @@
 			</argument>
 			<description>
 				Stores the given [String] as a line in the file in Pascal format (i.e. also store the length of the string).
+				Text will be encoded as UTF-8.
 			</description>
 		</method>
 		<method name="store_real">
@@ -391,6 +399,7 @@
 			</argument>
 			<description>
 				Stores the given [String] in the file.
+				Text will be encoded as UTF-8.
 			</description>
 		</method>
 		<method name="store_var">
@@ -398,8 +407,10 @@
 			</return>
 			<argument index="0" name="value" type="Variant">
 			</argument>
+			<argument index="1" name="full_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Stores any Variant value in the file.
+				Stores any Variant value in the file. When [code]full_objects[/code] is [code]true[/code] encoding objects is allowed (and can potentially include code).
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/FileDialog.xml b/doc/classes/FileDialog.xml
index 0af645975a..66e6fa5314 100644
--- a/doc/classes/FileDialog.xml
+++ b/doc/classes/FileDialog.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="FileDialog" inherits="ConfirmationDialog" category="Core" version="3.1">
+<class name="FileDialog" inherits="ConfirmationDialog" category="Core" version="3.2">
 	<brief_description>
 		Dialog for selecting files or directories in the filesystem.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_filter">
 			<return type="void">
diff --git a/doc/classes/Font.xml b/doc/classes/Font.xml
index 6cb5e0b17a..bd189928b0 100644
--- a/doc/classes/Font.xml
+++ b/doc/classes/Font.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Font" inherits="Resource" category="Core" version="3.1">
+<class name="Font" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Internationalized font and text drawing support.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="draw" qualifiers="const">
 			<return type="void">
diff --git a/doc/classes/FuncRef.xml b/doc/classes/FuncRef.xml
index 02b9dcfd88..3f84316503 100644
--- a/doc/classes/FuncRef.xml
+++ b/doc/classes/FuncRef.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="FuncRef" inherits="Reference" category="Core" version="3.1">
+<class name="FuncRef" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Reference to a function in an object.
 	</brief_description>
 	<description>
 		In GDScript, functions are not [i]first-class objects[/i]. This means it is impossible to store them directly as variables, return them from another function, or pass them as arguments.
-		However, by creating a [code]FuncRef[/code] using the [method @GDScript.funcref] function, a reference to a function in a given object can be created, passed around and called.
+		However, by creating a [FuncRef] using the [method @GDScript.funcref] function, a reference to a function in a given object can be created, passed around and called.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="call_func" qualifiers="vararg">
 			<return type="Variant">
diff --git a/doc/classes/GDNativeLibraryResourceLoader.xml b/doc/classes/GDNativeLibraryResourceLoader.xml
index 865381667d..1b98fa3889 100644
--- a/doc/classes/GDNativeLibraryResourceLoader.xml
+++ b/doc/classes/GDNativeLibraryResourceLoader.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDNativeLibraryResourceLoader" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="GDNativeLibraryResourceLoader" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/GDNativeLibraryResourceSaver.xml b/doc/classes/GDNativeLibraryResourceSaver.xml
index 39f423d762..346d0d87d4 100644
--- a/doc/classes/GDNativeLibraryResourceSaver.xml
+++ b/doc/classes/GDNativeLibraryResourceSaver.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDNativeLibraryResourceSaver" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="GDNativeLibraryResourceSaver" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/GIProbe.xml b/doc/classes/GIProbe.xml
index 5fb0ccc33d..e42d3ed2c4 100644
--- a/doc/classes/GIProbe.xml
+++ b/doc/classes/GIProbe.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GIProbe" inherits="VisualInstance" category="Core" version="3.1">
+<class name="GIProbe" inherits="VisualInstance" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
@@ -7,8 +7,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/gi_probes.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="bake">
 			<return type="void">
diff --git a/doc/classes/GIProbeData.xml b/doc/classes/GIProbeData.xml
index b2186d7647..94b86dee74 100644
--- a/doc/classes/GIProbeData.xml
+++ b/doc/classes/GIProbeData.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GIProbeData" inherits="Resource" category="Core" version="3.1">
+<class name="GIProbeData" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Generic6DOFJoint.xml b/doc/classes/Generic6DOFJoint.xml
index 95f9a76662..53cece21fa 100644
--- a/doc/classes/Generic6DOFJoint.xml
+++ b/doc/classes/Generic6DOFJoint.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Generic6DOFJoint" inherits="Joint" category="Core" version="3.1">
+<class name="Generic6DOFJoint" inherits="Joint" category="Core" version="3.2">
 	<brief_description>
 		The generic 6 degrees of freedom joint can implement a variety of joint-types by locking certain axes' rotation or translation.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Geometry.xml b/doc/classes/Geometry.xml
index ea2e2f7595..68539d7ecb 100644
--- a/doc/classes/Geometry.xml
+++ b/doc/classes/Geometry.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Geometry" inherits="Object" category="Core" version="3.1">
+<class name="Geometry" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="build_box_planes">
 			<return type="Array">
diff --git a/doc/classes/GeometryInstance.xml b/doc/classes/GeometryInstance.xml
index d6267044f7..6a89d81aa0 100644
--- a/doc/classes/GeometryInstance.xml
+++ b/doc/classes/GeometryInstance.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GeometryInstance" inherits="VisualInstance" category="Core" version="3.1">
+<class name="GeometryInstance" inherits="VisualInstance" category="Core" version="3.2">
 	<brief_description>
 		Base node for geometry based visual instances.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Gradient.xml b/doc/classes/Gradient.xml
index bf3f125e48..d80fed204e 100644
--- a/doc/classes/Gradient.xml
+++ b/doc/classes/Gradient.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Gradient" inherits="Resource" category="Core" version="3.1">
+<class name="Gradient" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Color interpolator node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_point">
 			<return type="void">
diff --git a/doc/classes/GradientTexture.xml b/doc/classes/GradientTexture.xml
index d064e15e17..fc952346ad 100644
--- a/doc/classes/GradientTexture.xml
+++ b/doc/classes/GradientTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GradientTexture" inherits="Texture" category="Core" version="3.1">
+<class name="GradientTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		Gradient filled texture.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/GraphEdit.xml b/doc/classes/GraphEdit.xml
index 715c23d869..145cd243bc 100644
--- a/doc/classes/GraphEdit.xml
+++ b/doc/classes/GraphEdit.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GraphEdit" inherits="Control" category="Core" version="3.1">
+<class name="GraphEdit" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		GraphEdit is an area capable of showing various GraphNodes. It manages connection events between them.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_valid_connection_type">
 			<return type="void">
@@ -103,7 +101,7 @@
 			<argument index="3" name="to_port" type="int">
 			</argument>
 			<description>
-				Return true if the 'from_port' slot of 'from' GraphNode is connected to the 'to_port' slot of 'to' GraphNode.
+				Return [code]true[/code] if the 'from_port' slot of 'from' GraphNode is connected to the 'to_port' slot of 'to' GraphNode.
 			</description>
 		</method>
 		<method name="is_valid_connection_type" qualifiers="const">
diff --git a/doc/classes/GraphNode.xml b/doc/classes/GraphNode.xml
index 6e09926c11..4d6f3180d0 100644
--- a/doc/classes/GraphNode.xml
+++ b/doc/classes/GraphNode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GraphNode" inherits="Container" category="Core" version="3.1">
+<class name="GraphNode" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		A GraphNode is a container with several input and output slots allowing connections between GraphNodes. Slots can have different, incompatible types.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear_all_slots">
 			<return type="void">
@@ -137,7 +135,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Return true if left (input) slot 'idx' is enabled. False otherwise.
+				Return [code]true[/code] if left (input) slot 'idx' is enabled, [code]false[/code] otherwise.
 			</description>
 		</method>
 		<method name="is_slot_enabled_right" qualifiers="const">
@@ -146,7 +144,7 @@
 			<argument index="0" name="idx" type="int">
 			</argument>
 			<description>
-				Return true if right (output) slot 'idx' is enabled. False otherwise.
+				Return [code]true[/code] if right (output) slot 'idx' is enabled, [code]false[/code] otherwise.
 			</description>
 		</method>
 		<method name="set_slot">
diff --git a/doc/classes/GridContainer.xml b/doc/classes/GridContainer.xml
index a304f34ed2..94d805e3f6 100644
--- a/doc/classes/GridContainer.xml
+++ b/doc/classes/GridContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GridContainer" inherits="Container" category="Core" version="3.1">
+<class name="GridContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Grid container used to arrange elements in a grid like layout.
 	</brief_description>
@@ -8,13 +8,11 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="columns" type="int" setter="set_columns" getter="get_columns">
-			The number of columns in the [code]GridContainer[/code]. If modified, [code]GridContainer[/code] reorders its children to accommodate the new layout.
+			The number of columns in the [GridContainer]. If modified, [GridContainer] reorders its children to accommodate the new layout.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/GrooveJoint2D.xml b/doc/classes/GrooveJoint2D.xml
index a15c658f78..dd758d0bd3 100644
--- a/doc/classes/GrooveJoint2D.xml
+++ b/doc/classes/GrooveJoint2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GrooveJoint2D" inherits="Joint2D" category="Core" version="3.1">
+<class name="GrooveJoint2D" inherits="Joint2D" category="Core" version="3.2">
 	<brief_description>
 		Groove constraint for 2D physics.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/HBoxContainer.xml b/doc/classes/HBoxContainer.xml
index 9c86f17ef1..fce030a260 100644
--- a/doc/classes/HBoxContainer.xml
+++ b/doc/classes/HBoxContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HBoxContainer" inherits="BoxContainer" category="Core" version="3.1">
+<class name="HBoxContainer" inherits="BoxContainer" category="Core" version="3.2">
 	<brief_description>
 		Horizontal box container.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/HScrollBar.xml b/doc/classes/HScrollBar.xml
index 61759c4f94..14ace8bc76 100644
--- a/doc/classes/HScrollBar.xml
+++ b/doc/classes/HScrollBar.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HScrollBar" inherits="ScrollBar" category="Core" version="3.1">
+<class name="HScrollBar" inherits="ScrollBar" category="Core" version="3.2">
 	<brief_description>
 		Horizontal scroll bar.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/HSeparator.xml b/doc/classes/HSeparator.xml
index 1a9cf25857..c2c22d3bcd 100644
--- a/doc/classes/HSeparator.xml
+++ b/doc/classes/HSeparator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HSeparator" inherits="Separator" category="Core" version="3.1">
+<class name="HSeparator" inherits="Separator" category="Core" version="3.2">
 	<brief_description>
 		Horizontal separator.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/HSlider.xml b/doc/classes/HSlider.xml
index 6d5acded3c..2fef4669d2 100644
--- a/doc/classes/HSlider.xml
+++ b/doc/classes/HSlider.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HSlider" inherits="Slider" category="Core" version="3.1">
+<class name="HSlider" inherits="Slider" category="Core" version="3.2">
 	<brief_description>
 		Horizontal slider.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/HSplitContainer.xml b/doc/classes/HSplitContainer.xml
index 45b99c85a6..accc09d190 100644
--- a/doc/classes/HSplitContainer.xml
+++ b/doc/classes/HSplitContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HSplitContainer" inherits="SplitContainer" category="Core" version="3.1">
+<class name="HSplitContainer" inherits="SplitContainer" category="Core" version="3.2">
 	<brief_description>
 		Horizontal split container.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/HTTPClient.xml b/doc/classes/HTTPClient.xml
index 5436e2b1eb..8ae0120a34 100644
--- a/doc/classes/HTTPClient.xml
+++ b/doc/classes/HTTPClient.xml
@@ -1,26 +1,24 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HTTPClient" inherits="Reference" category="Core" version="3.1">
+<class name="HTTPClient" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Hyper-text transfer protocol client.
 	</brief_description>
 	<description>
 		Hyper-text transfer protocol client (sometimes called "User Agent"). Used to make HTTP requests to download web content, upload files and other data or to communicate with various services, among other use cases.
 		Note that this client only needs to connect to a host once (see [method connect_to_host]) to send multiple requests. Because of this, methods that take URLs usually take just the part after the host instead of the full URL, as the client is already connected to a host. See [method request] for a full example and to get started.
-		A [code]HTTPClient[/code] should be reused between multiple requests or to connect to different hosts instead of creating one client per request. Supports SSL and SSL server certificate verification. HTTP status codes in the 2xx range indicate success, 3xx redirection (i.e. "try again, but over here"), 4xx something was wrong with the request, and 5xx something went wrong on the server's side.
+		A [HTTPClient] should be reused between multiple requests or to connect to different hosts instead of creating one client per request. Supports SSL and SSL server certificate verification. HTTP status codes in the 2xx range indicate success, 3xx redirection (i.e. "try again, but over here"), 4xx something was wrong with the request, and 5xx something went wrong on the server's side.
 		For more information on HTTP, see https://developer.mozilla.org/en-US/docs/Web/HTTP (or read RFC 2616 to get it straight from the source: https://tools.ietf.org/html/rfc2616).
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/networking/http_client_class.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/networking/ssl_certificates.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="close">
 			<return type="void">
 			</return>
 			<description>
-				Closes the current connection, allowing reuse of this [code]HTTPClient[/code].
+				Closes the current connection, allowing reuse of this [HTTPClient].
 			</description>
 		</method>
 		<method name="connect_to_host">
@@ -82,14 +80,14 @@
 			<return type="bool">
 			</return>
 			<description>
-				If [code]true[/code], this [code]HTTPClient[/code] has a response available.
+				If [code]true[/code], this [HTTPClient] has a response available.
 			</description>
 		</method>
 		<method name="is_response_chunked" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
-				If [code]true[/code], this [code]HTTPClient[/code] has a response that is chunked.
+				If [code]true[/code], this [HTTPClient] has a response that is chunked.
 			</description>
 		</method>
 		<method name="poll">
@@ -297,7 +295,7 @@
 			HTTP status code [code]303 See Other[/code]. The server is redirecting the user agent to a different resource, as indicated by a URI in the Location header field, which is intended to provide an indirect response to the original request.
 		</constant>
 		<constant name="RESPONSE_NOT_MODIFIED" value="304" enum="ResponseCode">
-			HTTP status code [code]304 Not Modified[/code]. A conditional GET or HEAD request has been received and would have resulted in a 200 OK response if it were not for the fact that the condition evaluated to false.
+			HTTP status code [code]304 Not Modified[/code]. A conditional GET or HEAD request has been received and would have resulted in a 200 OK response if it were not for the fact that the condition evaluated to [code]false[/code].
 		</constant>
 		<constant name="RESPONSE_USE_PROXY" value="305" enum="ResponseCode">
 			HTTP status code [code]305 Use Proxy[/code]. Deprecated. Do not use.
@@ -348,7 +346,7 @@
 			HTTP status code [code]411 Length Required[/code]. The server refuses to accept the request without a defined Content-Length header.
 		</constant>
 		<constant name="RESPONSE_PRECONDITION_FAILED" value="412" enum="ResponseCode">
-			HTTP status code [code]412 Precondition Failed[/code]. One or more conditions given in the request header fields evaluated to false when tested on the server.
+			HTTP status code [code]412 Precondition Failed[/code]. One or more conditions given in the request header fields evaluated to [code]false[/code] when tested on the server.
 		</constant>
 		<constant name="RESPONSE_REQUEST_ENTITY_TOO_LARGE" value="413" enum="ResponseCode">
 			HTTP status code [code]413 Entity Too Large[/code]. The server is refusing to process a request because the request payload is larger than the server is willing or able to process.
diff --git a/doc/classes/HTTPRequest.xml b/doc/classes/HTTPRequest.xml
index 3271fef8e3..3dccc8e741 100644
--- a/doc/classes/HTTPRequest.xml
+++ b/doc/classes/HTTPRequest.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HTTPRequest" inherits="Node" category="Core" version="3.1">
+<class name="HTTPRequest" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		A node with the ability to send HTTP requests.
 	</brief_description>
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/networking/ssl_certificates.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="cancel_request">
 			<return type="void">
diff --git a/doc/classes/HeightMapShape.xml b/doc/classes/HeightMapShape.xml
new file mode 100644
index 0000000000..22896535b9
--- /dev/null
+++ b/doc/classes/HeightMapShape.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="HeightMapShape" inherits="Shape" category="Core" version="3.2">
+	<brief_description>
+		Height map shape for 3D physics (Bullet only).
+	</brief_description>
+	<description>
+		Height map shape resource, which can be added to a [PhysicsBody] or [Area].
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="map_data" type="PoolRealArray" setter="set_map_data" getter="get_map_data">
+			Height map data, pool array must be of [member map_width] * [member map_depth] size.
+		</member>
+		<member name="map_depth" type="int" setter="set_map_depth" getter="get_map_depth">
+			Depth of the height map data. Changing this will resize the [member map_data].
+		</member>
+		<member name="map_width" type="int" setter="set_map_width" getter="get_map_width">
+			Width of the height map data. Changing this will resize the [member map_data].
+		</member>
+	</members>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/HingeJoint.xml b/doc/classes/HingeJoint.xml
index 41d3b2311d..79df64f226 100644
--- a/doc/classes/HingeJoint.xml
+++ b/doc/classes/HingeJoint.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="HingeJoint" inherits="Joint" category="Core" version="3.1">
+<class name="HingeJoint" inherits="Joint" category="Core" version="3.2">
 	<brief_description>
 		A hinge between two 3D bodies.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/IP.xml b/doc/classes/IP.xml
index bcb15e44fc..3616a9ec50 100644
--- a/doc/classes/IP.xml
+++ b/doc/classes/IP.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="IP" inherits="Object" category="Core" version="3.1">
+<class name="IP" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Internet protocol (IP) support functions like DNS resolution.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear_cache">
 			<return type="void">
diff --git a/doc/classes/IP_Unix.xml b/doc/classes/IP_Unix.xml
index 0dd4455562..4e09bf5dc0 100644
--- a/doc/classes/IP_Unix.xml
+++ b/doc/classes/IP_Unix.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="IP_Unix" inherits="IP" category="Core" version="3.1">
+<class name="IP_Unix" inherits="IP" category="Core" version="3.2">
 	<brief_description>
 		Unix IP support. See [IP].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Image.xml b/doc/classes/Image.xml
index f165027d44..641bd64599 100644
--- a/doc/classes/Image.xml
+++ b/doc/classes/Image.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Image" inherits="Resource" category="Core" version="3.1">
+<class name="Image" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Image datatype.
 	</brief_description>
 	<description>
-		Native image datatype. Contains image data, which can be converted to a [Texture], and several functions to interact with it. The maximum width and height for an [code]Image[/code] are [constant MAX_WIDTH] and [constant MAX_HEIGHT].
+		Native image datatype. Contains image data, which can be converted to a [Texture], and several functions to interact with it. The maximum width and height for an [Image] are [constant MAX_WIDTH] and [constant MAX_HEIGHT].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="blend_rect">
 			<return type="void">
@@ -125,7 +123,7 @@
 			<argument index="3" name="format" type="int" enum="Image.Format">
 			</argument>
 			<description>
-				Creates an empty image of given size and format. See [code]FORMAT_*[/code] constants. If [code]use_mipmaps[/code] is true then generate mipmaps for this image. See the [code]generate_mipmaps[/code] method.
+				Creates an empty image of given size and format. See [code]FORMAT_*[/code] constants. If [code]use_mipmaps[/code] is [code]true[/code] then generate mipmaps for this image. See the [code]generate_mipmaps[/code] method.
 			</description>
 		</method>
 		<method name="create_from_data">
@@ -142,7 +140,7 @@
 			<argument index="4" name="data" type="PoolByteArray">
 			</argument>
 			<description>
-				Creates a new image of given size and format. See [code]FORMAT_*[/code] constants. Fills the image with the given raw data. If [code]use_mipmaps[/code] is true then generate mipmaps for this image. See the [code]generate_mipmaps[/code] method.
+				Creates a new image of given size and format. See [code]FORMAT_*[/code] constants. Fills the image with the given raw data. If [code]use_mipmaps[/code] is [code]true[/code] then generate mipmaps for this image. See the [code]generate_mipmaps[/code] method.
 			</description>
 		</method>
 		<method name="crop">
@@ -477,10 +475,10 @@
 	</members>
 	<constants>
 		<constant name="MAX_WIDTH" value="16384">
-			The maximal width allowed for [code]Image[/code] resources.
+			The maximal width allowed for [Image] resources.
 		</constant>
 		<constant name="MAX_HEIGHT" value="16384">
-			The maximal height allowed for [code]Image[/code] resources.
+			The maximal height allowed for [Image] resources.
 		</constant>
 		<constant name="FORMAT_L8" value="0" enum="Format">
 		</constant>
diff --git a/doc/classes/ImageTexture.xml b/doc/classes/ImageTexture.xml
index 579886c771..15ecd4ee6d 100644
--- a/doc/classes/ImageTexture.xml
+++ b/doc/classes/ImageTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ImageTexture" inherits="Texture" category="Core" version="3.1">
+<class name="ImageTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		A [Texture] based on an [Image].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="create">
 			<return type="void">
@@ -23,7 +21,7 @@
 			<argument index="3" name="flags" type="int" default="7">
 			</argument>
 			<description>
-				Create a new [code]ImageTexture[/code] with [code]width[/code] and [code]height[/code].
+				Create a new [ImageTexture] with [code]width[/code] and [code]height[/code].
 				[code]format[/code] is a value from [enum Image.Format], [code]flags[/code] is any combination of [enum Texture.Flags].
 			</description>
 		</method>
@@ -35,14 +33,14 @@
 			<argument index="1" name="flags" type="int" default="7">
 			</argument>
 			<description>
-				Create a new [code]ImageTexture[/code] from an [Image] with [code]flags[/code] from [enum Texture.Flags]. An sRGB to linear color space conversion can take place, according to [enum Image.Format].
+				Create a new [ImageTexture] from an [Image] with [code]flags[/code] from [enum Texture.Flags]. An sRGB to linear color space conversion can take place, according to [enum Image.Format].
 			</description>
 		</method>
 		<method name="get_format" qualifiers="const">
 			<return type="int" enum="Image.Format">
 			</return>
 			<description>
-				Return the format of the [code]ImageTexture[/code], one of [enum Image.Format].
+				Return the format of the [ImageTexture], one of [enum Image.Format].
 			</description>
 		</method>
 		<method name="load">
@@ -51,7 +49,7 @@
 			<argument index="0" name="path" type="String">
 			</argument>
 			<description>
-				Load an [code]ImageTexture[/code] from a file path.
+				Load an [ImageTexture] from a file path.
 			</description>
 		</method>
 		<method name="set_data">
@@ -60,7 +58,7 @@
 			<argument index="0" name="image" type="Image">
 			</argument>
 			<description>
-				Set the [Image] of this [code]ImageTexture[/code].
+				Set the [Image] of this [ImageTexture].
 			</description>
 		</method>
 		<method name="set_size_override">
@@ -69,7 +67,7 @@
 			<argument index="0" name="size" type="Vector2">
 			</argument>
 			<description>
-				Resizes the [code]ImageTexture[/code] to the specified dimensions.
+				Resizes the [ImageTexture] to the specified dimensions.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/ImmediateGeometry.xml b/doc/classes/ImmediateGeometry.xml
index 29d05bf877..ca45fc5f9e 100644
--- a/doc/classes/ImmediateGeometry.xml
+++ b/doc/classes/ImmediateGeometry.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ImmediateGeometry" inherits="GeometryInstance" category="Core" version="3.1">
+<class name="ImmediateGeometry" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 		Draws simple geometry from code.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_sphere">
 			<return type="void">
diff --git a/doc/classes/Input.xml b/doc/classes/Input.xml
index 29c60f902e..319f84b8d2 100644
--- a/doc/classes/Input.xml
+++ b/doc/classes/Input.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Input" inherits="Object" category="Core" version="3.1">
+<class name="Input" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		A Singleton that deals with inputs.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="action_press">
 			<return type="void">
@@ -68,6 +66,12 @@
 				Returns an [Array] containing the device IDs of all currently connected joypads.
 			</description>
 		</method>
+		<method name="get_current_cursor_shape" qualifiers="const">
+			<return type="int" enum="Input.CursorShape">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_gravity" qualifiers="const">
 			<return type="Vector3">
 			</return>
@@ -90,7 +94,7 @@
 			<argument index="1" name="axis" type="int">
 			</argument>
 			<description>
-				Returns the current value of the joypad axis at given index (see [code]JOY_*[/code] constants in [@GlobalScope])
+				Returns the current value of the joypad axis at given index (see [enum JoystickList]).
 			</description>
 		</method>
 		<method name="get_joy_axis_index_from_string">
@@ -108,7 +112,7 @@
 			<argument index="0" name="axis_index" type="int">
 			</argument>
 			<description>
-				Receives a [code]JOY_AXIS_*[/code] Enum and returns its equivalent name as a string.
+				Receives a [enum JoystickList] axis and returns its equivalent name as a string.
 			</description>
 		</method>
 		<method name="get_joy_button_index_from_string">
@@ -126,7 +130,7 @@
 			<argument index="0" name="button_index" type="int">
 			</argument>
 			<description>
-				Receives a [code]JOY_BUTTON_*[/code] Enum and returns its equivalent name as a string.
+				Receives a joy button from [enum JoystickList] and returns its equivalent name as a string.
 			</description>
 		</method>
 		<method name="get_joy_guid" qualifiers="const">
@@ -199,7 +203,7 @@
 			<argument index="0" name="action" type="String">
 			</argument>
 			<description>
-				Returns [code]true[/code] when the user starts pressing the action event, meaning it's true only on the frame that the user pressed down the button.
+				Returns [code]true[/code] when the user starts pressing the action event, meaning it's [code]true[/code] only on the frame that the user pressed down the button.
 				This is useful for code that needs to run only once when an action is pressed, instead of every frame while it's pressed.
 			</description>
 		</method>
@@ -209,7 +213,7 @@
 			<argument index="0" name="action" type="String">
 			</argument>
 			<description>
-				Returns [code]true[/code] when the user stops pressing the action event, meaning it's true only on the frame that the user released the button.
+				Returns [code]true[/code] when the user stops pressing the action event, meaning it's [code]true[/code] only on the frame that the user released the button.
 			</description>
 		</method>
 		<method name="is_action_pressed" qualifiers="const">
@@ -229,7 +233,7 @@
 			<argument index="1" name="button" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if you are pressing the joypad button. (see [code]JOY_*[/code] constants in [@GlobalScope])
+				Returns [code]true[/code] if you are pressing the joypad button (see [enum JoystickList]).
 			</description>
 		</method>
 		<method name="is_joy_known">
@@ -238,7 +242,7 @@
 			<argument index="0" name="device" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the system knows the specified device. This means that it sets all button and axis indices exactly as defined in the [code]JOY_*[/code] constants (see [@GlobalScope]). Unknown joypads are not expected to match these constants, but you can still retrieve events from them.
+				Returns [code]true[/code] if the system knows the specified device. This means that it sets all button and axis indices exactly as defined in [enum JoystickList]. Unknown joypads are not expected to match these constants, but you can still retrieve events from them.
 			</description>
 		</method>
 		<method name="is_key_pressed" qualifiers="const">
@@ -247,7 +251,7 @@
 			<argument index="0" name="scancode" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if you are pressing the key. You can pass [code]KEY_*[/code], which are pre-defined constants listed in [@GlobalScope].
+				Returns [code]true[/code] if you are pressing the key. You can pass a [enum KeyList] constant.
 			</description>
 		</method>
 		<method name="is_mouse_button_pressed" qualifiers="const">
@@ -256,7 +260,7 @@
 			<argument index="0" name="button" type="int">
 			</argument>
 			<description>
-				Returns [code]true[/code] if you are pressing the mouse button. You can pass [code]BUTTON_*[/code], which are pre-defined constants listed in [@GlobalScope].
+				Returns [code]true[/code] if you are pressing the mouse button specified with [enum ButtonList].
 			</description>
 		</method>
 		<method name="joy_connection_changed">
diff --git a/doc/classes/InputDefault.xml b/doc/classes/InputDefault.xml
index 27bfff2e67..e96b885d10 100644
--- a/doc/classes/InputDefault.xml
+++ b/doc/classes/InputDefault.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputDefault" inherits="Input" category="Core" version="3.1">
+<class name="InputDefault" inherits="Input" category="Core" version="3.2">
 	<brief_description>
 		Default implementation of the [Input] class.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/InputEvent.xml b/doc/classes/InputEvent.xml
index cd08cd4fe7..934597d0c6 100644
--- a/doc/classes/InputEvent.xml
+++ b/doc/classes/InputEvent.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEvent" inherits="Resource" category="Core" version="3.1">
+<class name="InputEvent" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Generic input event
 	</brief_description>
@@ -10,8 +10,6 @@
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/2d_transforms.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="accumulate">
 			<return type="bool">
@@ -67,7 +65,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns [code]true[/code] if this input event's type is one of the [code]InputEvent[/code] constants.
+				Returns [code]true[/code] if this input event's type is one of the [InputEvent] constants.
 			</description>
 		</method>
 		<method name="is_echo" qualifiers="const">
diff --git a/doc/classes/InputEventAction.xml b/doc/classes/InputEventAction.xml
index bd0d774180..25e9073ec7 100644
--- a/doc/classes/InputEventAction.xml
+++ b/doc/classes/InputEventAction.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventAction" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventAction" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 		Input event type for actions.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html#actions</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventGesture.xml b/doc/classes/InputEventGesture.xml
index eb1e613b7c..b1abf04b51 100644
--- a/doc/classes/InputEventGesture.xml
+++ b/doc/classes/InputEventGesture.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventGesture" inherits="InputEventWithModifiers" category="Core" version="3.1">
+<class name="InputEventGesture" inherits="InputEventWithModifiers" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventJoypadButton.xml b/doc/classes/InputEventJoypadButton.xml
index 1875ea508a..78cd55b79a 100644
--- a/doc/classes/InputEventJoypadButton.xml
+++ b/doc/classes/InputEventJoypadButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventJoypadButton" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventJoypadButton" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 		Input event for gamepad buttons.
 	</brief_description>
@@ -9,13 +9,11 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="button_index" type="int" setter="set_button_index" getter="get_button_index">
-			Button identifier. One of the [code]JOY_BUTTON_*[/code] constants from [@GlobalScope].
+			Button identifier. One of the [enum JoystickList] button constants.
 		</member>
 		<member name="pressed" type="bool" setter="set_pressed" getter="is_pressed">
 			If [code]true[/code], the button's state is pressed. If [code]false[/code], the button's state is released.
diff --git a/doc/classes/InputEventJoypadMotion.xml b/doc/classes/InputEventJoypadMotion.xml
index 0c73f53158..5330b2a6e0 100644
--- a/doc/classes/InputEventJoypadMotion.xml
+++ b/doc/classes/InputEventJoypadMotion.xml
@@ -1,21 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventJoypadMotion" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventJoypadMotion" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 		Input event type for gamepad joysticks and other motions. For buttons see [code]InputEventJoypadButton[/code].
 	</brief_description>
 	<description>
-		Stores information about joystick motions. One [code]InputEventJoypadMotion[/code] represents one axis at a time.
+		Stores information about joystick motions. One [InputEventJoypadMotion] represents one axis at a time.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="axis" type="int" setter="set_axis" getter="get_axis">
-			Axis identifier. Use one of the [code]JOY_AXIS_*[/code] constants in [@GlobalScope].
+			Axis identifier. Use one of the [enum JoystickList] axis constants.
 		</member>
 		<member name="axis_value" type="float" setter="set_axis_value" getter="get_axis_value">
 			Current position of the joystick on the given axis. The value ranges from [code]-1.0[/code] to [code]1.0[/code]. A value of [code]0[/code] means the axis is in its resting position.
diff --git a/doc/classes/InputEventKey.xml b/doc/classes/InputEventKey.xml
index 4d8a2f6242..86a1362230 100644
--- a/doc/classes/InputEventKey.xml
+++ b/doc/classes/InputEventKey.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventKey" inherits="InputEventWithModifiers" category="Core" version="3.1">
+<class name="InputEventKey" inherits="InputEventWithModifiers" category="Core" version="3.2">
 	<brief_description>
 		Input event type for keyboard events.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_scancode_with_modifiers" qualifiers="const">
 			<return type="int">
@@ -28,7 +26,7 @@
 			If [code]true[/code], the key's state is pressed. If [code]false[/code], the key's state is released.
 		</member>
 		<member name="scancode" type="int" setter="set_scancode" getter="get_scancode">
-			Key scancode, one of the [code]KEY_*[/code] constants in [@GlobalScope].
+			Key scancode, one of the [enum KeyList] constants.
 		</member>
 		<member name="unicode" type="int" setter="set_unicode" getter="get_unicode">
 			Key unicode identifier when relevant.
diff --git a/doc/classes/InputEventMIDI.xml b/doc/classes/InputEventMIDI.xml
index 2cdd70e42c..5ded362bc7 100644
--- a/doc/classes/InputEventMIDI.xml
+++ b/doc/classes/InputEventMIDI.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventMIDI" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventMIDI" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventMagnifyGesture.xml b/doc/classes/InputEventMagnifyGesture.xml
index e9a0149c56..8f01f6f486 100644
--- a/doc/classes/InputEventMagnifyGesture.xml
+++ b/doc/classes/InputEventMagnifyGesture.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventMagnifyGesture" inherits="InputEventGesture" category="Core" version="3.1">
+<class name="InputEventMagnifyGesture" inherits="InputEventGesture" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventMouse.xml b/doc/classes/InputEventMouse.xml
index 27e8d17407..8ba272d470 100644
--- a/doc/classes/InputEventMouse.xml
+++ b/doc/classes/InputEventMouse.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventMouse" inherits="InputEventWithModifiers" category="Core" version="3.1">
+<class name="InputEventMouse" inherits="InputEventWithModifiers" category="Core" version="3.2">
 	<brief_description>
 		Base input event type for mouse events.
 	</brief_description>
@@ -9,13 +9,11 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="button_mask" type="int" setter="set_button_mask" getter="get_button_mask">
-			Mouse button mask identifier, one of or a bitwise combination of the BUTTON_MASK_* constants in [@GlobalScope].
+			Mouse button mask identifier, one of or a bitwise combination of the [enum ButtonList] button masks.
 		</member>
 		<member name="global_position" type="Vector2" setter="set_global_position" getter="get_global_position">
 			Mouse position relative to the current [Viewport] when used in [method Control._gui_input], otherwise is at 0,0.
diff --git a/doc/classes/InputEventMouseButton.xml b/doc/classes/InputEventMouseButton.xml
index 8603a4f673..99e25d2c6f 100644
--- a/doc/classes/InputEventMouseButton.xml
+++ b/doc/classes/InputEventMouseButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventMouseButton" inherits="InputEventMouse" category="Core" version="3.1">
+<class name="InputEventMouseButton" inherits="InputEventMouse" category="Core" version="3.2">
 	<brief_description>
 		Input event type for mouse button events.
 	</brief_description>
@@ -9,13 +9,11 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/mouse_and_input_coordinates.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="button_index" type="int" setter="set_button_index" getter="get_button_index">
-			Mouse button identifier, one of the BUTTON_* or BUTTON_WHEEL_* constants in [@GlobalScope].
+			Mouse button identifier, one of the [enum ButtonList] button or button wheel constants.
 		</member>
 		<member name="doubleclick" type="bool" setter="set_doubleclick" getter="is_doubleclick">
 			If [code]true[/code], the mouse button's state is a double-click.
diff --git a/doc/classes/InputEventMouseMotion.xml b/doc/classes/InputEventMouseMotion.xml
index f7f6358910..3df47177dc 100644
--- a/doc/classes/InputEventMouseMotion.xml
+++ b/doc/classes/InputEventMouseMotion.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventMouseMotion" inherits="InputEventMouse" category="Core" version="3.1">
+<class name="InputEventMouseMotion" inherits="InputEventMouse" category="Core" version="3.2">
 	<brief_description>
 		Input event type for mouse motion events.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/mouse_and_input_coordinates.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventPanGesture.xml b/doc/classes/InputEventPanGesture.xml
index 063986ae65..8a2fa74597 100644
--- a/doc/classes/InputEventPanGesture.xml
+++ b/doc/classes/InputEventPanGesture.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventPanGesture" inherits="InputEventGesture" category="Core" version="3.1">
+<class name="InputEventPanGesture" inherits="InputEventGesture" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventScreenDrag.xml b/doc/classes/InputEventScreenDrag.xml
index a320c0a028..36e47ee51a 100644
--- a/doc/classes/InputEventScreenDrag.xml
+++ b/doc/classes/InputEventScreenDrag.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventScreenDrag" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventScreenDrag" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 		Input event type for screen drag events.
 		(only available on mobile devices)
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventScreenTouch.xml b/doc/classes/InputEventScreenTouch.xml
index 8b1b9cae9f..8f537f12bc 100644
--- a/doc/classes/InputEventScreenTouch.xml
+++ b/doc/classes/InputEventScreenTouch.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventScreenTouch" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventScreenTouch" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 		Input event type for screen touch events.
 		(only available on mobile devices)
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputEventWithModifiers.xml b/doc/classes/InputEventWithModifiers.xml
index fcf2fd545e..de120446fb 100644
--- a/doc/classes/InputEventWithModifiers.xml
+++ b/doc/classes/InputEventWithModifiers.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputEventWithModifiers" inherits="InputEvent" category="Core" version="3.1">
+<class name="InputEventWithModifiers" inherits="InputEvent" category="Core" version="3.2">
 	<brief_description>
 		Base class for keys events with modifiers.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/InputMap.xml b/doc/classes/InputMap.xml
index 3779aa399f..bb29a09d22 100644
--- a/doc/classes/InputMap.xml
+++ b/doc/classes/InputMap.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InputMap" inherits="Object" category="Core" version="3.1">
+<class name="InputMap" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Singleton that manages [InputEventAction].
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/inputs/inputevent.html#inputmap</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="action_add_event">
 			<return type="void">
@@ -72,7 +70,7 @@
 			<argument index="1" name="deadzone" type="float" default="0.5">
 			</argument>
 			<description>
-				Adds an empty action to the [code]InputMap[/code] with a configurable [code]deadzone[/code].
+				Adds an empty action to the [InputMap] with a configurable [code]deadzone[/code].
 				An [InputEvent] can then be added to this action with [method action_add_event].
 			</description>
 		</method>
@@ -82,7 +80,7 @@
 			<argument index="0" name="action" type="String">
 			</argument>
 			<description>
-				Removes an action from the [code]InputMap[/code].
+				Removes an action from the [InputMap].
 			</description>
 		</method>
 		<method name="event_is_action" qualifiers="const">
@@ -109,7 +107,7 @@
 			<return type="Array">
 			</return>
 			<description>
-				Returns an array of all actions in the [code]InputMap[/code].
+				Returns an array of all actions in the [InputMap].
 			</description>
 		</method>
 		<method name="has_action" qualifiers="const">
@@ -118,14 +116,14 @@
 			<argument index="0" name="action" type="String">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]InputMap[/code] has a registered action with the given name.
+				Returns [code]true[/code] if the [InputMap] has a registered action with the given name.
 			</description>
 		</method>
 		<method name="load_from_globals">
 			<return type="void">
 			</return>
 			<description>
-				Clears all [InputEventAction] in the [code]InputMap[/code] and load it anew from [ProjectSettings].
+				Clears all [InputEventAction] in the [InputMap] and load it anew from [ProjectSettings].
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/InstancePlaceholder.xml b/doc/classes/InstancePlaceholder.xml
index 71c859fd9e..c4752c735d 100644
--- a/doc/classes/InstancePlaceholder.xml
+++ b/doc/classes/InstancePlaceholder.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InstancePlaceholder" inherits="Node" category="Core" version="3.1">
+<class name="InstancePlaceholder" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Placeholder for the root [Node] of a [PackedScene].
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="create_instance">
 			<return type="Node">
diff --git a/doc/classes/InterpolatedCamera.xml b/doc/classes/InterpolatedCamera.xml
index fdb4361091..d124ea707a 100644
--- a/doc/classes/InterpolatedCamera.xml
+++ b/doc/classes/InterpolatedCamera.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="InterpolatedCamera" inherits="Camera" category="Core" version="3.1">
+<class name="InterpolatedCamera" inherits="Camera" category="Core" version="3.2">
 	<brief_description>
 		Camera which moves toward another node.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="set_target">
 			<return type="void">
diff --git a/doc/classes/ItemList.xml b/doc/classes/ItemList.xml
index 4df8a14804..663eeda77a 100644
--- a/doc/classes/ItemList.xml
+++ b/doc/classes/ItemList.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ItemList" inherits="Control" category="Core" version="3.1">
+<class name="ItemList" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Control that provides a list of selectable items (and/or icons) in a single column, or optionally in multiple columns.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_icon_item">
 			<return type="void">
@@ -34,7 +32,7 @@
 			</argument>
 			<description>
 				Adds an item to the item list with specified text. Specify an icon of null for a list item with no icon.
-				If selectable is true the list item will be selectable.
+				If selectable is [code]true[/code] the list item will be selectable.
 			</description>
 		</method>
 		<method name="clear">
diff --git a/doc/classes/JSON.xml b/doc/classes/JSON.xml
index fbf9aea7f9..cb62a1e88e 100644
--- a/doc/classes/JSON.xml
+++ b/doc/classes/JSON.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="JSON" inherits="Object" category="Core" version="3.1">
+<class name="JSON" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Helper class for parsing JSON data.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="parse">
 			<return type="JSONParseResult">
diff --git a/doc/classes/JSONParseResult.xml b/doc/classes/JSONParseResult.xml
index 4d2987cc04..c9caa5c5d4 100644
--- a/doc/classes/JSONParseResult.xml
+++ b/doc/classes/JSONParseResult.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="JSONParseResult" inherits="Reference" category="Core" version="3.1">
+<class name="JSONParseResult" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Data class wrapper for decoded JSON.
 	</brief_description>
 	<description>
-		Returned by [method JSON.parse], [code]JSONParseResult[/code] contains decoded JSON or error information if JSON source not successfully parsed. You can check if JSON source was successfully parsed with [code]if json_result.error == OK[/code].
+		Returned by [method JSON.parse], [JSONParseResult] contains decoded JSON or error information if JSON source not successfully parsed. You can check if JSON source was successfully parsed with [code]if json_result.error == OK[/code].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/JavaScript.xml b/doc/classes/JavaScript.xml
index fa3aaed684..68b6831103 100644
--- a/doc/classes/JavaScript.xml
+++ b/doc/classes/JavaScript.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="JavaScript" inherits="Object" category="Core" version="3.1">
+<class name="JavaScript" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Singleton that connects the engine with the browser's JavaScript context in HTML5 export.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/workflow/export/exporting_for_web.html#calling-javascript-from-script</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="eval">
 			<return type="Variant">
diff --git a/doc/classes/Joint.xml b/doc/classes/Joint.xml
index 32fdb31a99..5cd59852df 100644
--- a/doc/classes/Joint.xml
+++ b/doc/classes/Joint.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Joint" inherits="Spatial" category="Core" version="3.1">
+<class name="Joint" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Base class for all 3D joints
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Joint2D.xml b/doc/classes/Joint2D.xml
index 641765e671..b700bbd991 100644
--- a/doc/classes/Joint2D.xml
+++ b/doc/classes/Joint2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Joint2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Joint2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Base node for all joint constraints in 2D physics.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/KinematicBody.xml b/doc/classes/KinematicBody.xml
index 78012dd31c..8ea3d8c188 100644
--- a/doc/classes/KinematicBody.xml
+++ b/doc/classes/KinematicBody.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="KinematicBody" inherits="PhysicsBody" category="Core" version="3.1">
+<class name="KinematicBody" inherits="PhysicsBody" category="Core" version="3.2">
 	<brief_description>
 		Kinematic body 3D node.
 	</brief_description>
@@ -11,8 +11,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/kinematic_character_2d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_floor_velocity" qualifiers="const">
 			<return type="Vector3">
@@ -90,13 +88,13 @@
 			<argument index="5" name="infinite_inertia" type="bool" default="true">
 			</argument>
 			<description>
-				Moves the body along a vector. If the body collides with another, it will slide along the other body rather than stop immediately. If the other body is a [code]KinematicBody[/code] or [RigidBody], it will also be affected by the motion of the other body. You can use this to make moving or rotating platforms, or to make nodes push other nodes.
+				Moves the body along a vector. If the body collides with another, it will slide along the other body rather than stop immediately. If the other body is a [KinematicBody] or [RigidBody], it will also be affected by the motion of the other body. You can use this to make moving or rotating platforms, or to make nodes push other nodes.
 				[code]linear_velocity[/code] is the velocity vector (typically meters per second). Unlike in [method move_and_collide], you should [i]not[/i] multiply it by [code]delta[/code] — the physics engine handles applying the velocity.
 				[code]floor_normal[/code] is the up direction, used to determine what is a wall and what is a floor or a ceiling. If set to the default value of [code]Vector3(0, 0, 0)[/code], everything is considered a wall. This is useful for topdown games.
-				If [code]stop_on_slope[/code] is true, body will not slide on slopes if you include gravity in [code]linear_velocity[/code].
+				If [code]stop_on_slope[/code] is [code]true[/code], body will not slide on slopes if you include gravity in [code]linear_velocity[/code].
 				If the body collides, it will change direction a maximum of [code]max_slides[/code] times before it stops.
 				[code]floor_max_angle[/code] is the maximum angle (in radians) where a slope is still considered a floor (or a ceiling), rather than a wall. The default value equals 45 degrees.
-				If [code]infinite_inertia[/code] is true, body will be able to push [RigidBody] nodes, but it won't also detect any collisions with them. When false, it will interact with [RigidBody] nodes like with [StaticBody].
+				If [code]infinite_inertia[/code] is [code]true[/code], body will be able to push [RigidBody] nodes, but it won't also detect any collisions with them. If [code]false[/code] it will interact with [RigidBody] nodes like with [StaticBody].
 				Returns the [code]linear_velocity[/code] vector, rotated and/or scaled if a slide collision occurred. To get detailed information about collisions that occurred, use [method get_slide_collision].
 			</description>
 		</method>
diff --git a/doc/classes/KinematicBody2D.xml b/doc/classes/KinematicBody2D.xml
index 3eca698bba..b7ff4bac84 100644
--- a/doc/classes/KinematicBody2D.xml
+++ b/doc/classes/KinematicBody2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="KinematicBody2D" inherits="PhysicsBody2D" category="Core" version="3.1">
+<class name="KinematicBody2D" inherits="PhysicsBody2D" category="Core" version="3.2">
 	<brief_description>
 		Kinematic body 2D node.
 	</brief_description>
@@ -9,9 +9,9 @@
 		Kinematic Characters: KinematicBody2D also has an API for moving objects (the [method move_and_collide] and [method move_and_slide] methods) while performing collision tests. This makes them really useful to implement characters that collide against a world, but that don't require advanced physics.
 	</description>
 	<tutorials>
+		<link>https://docs.godotengine.org/en/latest/tutorials/physics/kinematic_character_2d.html</link>
+		<link>https://docs.godotengine.org/en/latest/tutorials/physics/using_kinematic_body_2d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_floor_velocity" qualifiers="const">
 			<return type="Vector2">
@@ -94,13 +94,13 @@
 			<argument index="5" name="infinite_inertia" type="bool" default="true">
 			</argument>
 			<description>
-				Moves the body along a vector. If the body collides with another, it will slide along the other body rather than stop immediately. If the other body is a [code]KinematicBody2D[/code] or [RigidBody2D], it will also be affected by the motion of the other body. You can use this to make moving or rotating platforms, or to make nodes push other nodes.
+				Moves the body along a vector. If the body collides with another, it will slide along the other body rather than stop immediately. If the other body is a [KinematicBody2D] or [RigidBody2D], it will also be affected by the motion of the other body. You can use this to make moving or rotating platforms, or to make nodes push other nodes.
 				[code]linear_velocity[/code] is the velocity vector in pixels per second. Unlike in [method move_and_collide], you should [i]not[/i] multiply it by [code]delta[/code] — the physics engine handles applying the velocity.
 				[code]floor_normal[/code] is the up direction, used to determine what is a wall and what is a floor or a ceiling. If set to the default value of [code]Vector2(0, 0)[/code], everything is considered a wall. This is useful for topdown games.
-				If [code]stop_on_slope[/code] is true, body will not slide on slopes when you include gravity in [code]linear_velocity[/code] and the body is standing still.
+				If [code]stop_on_slope[/code] is [code]true[/code], body will not slide on slopes when you include gravity in [code]linear_velocity[/code] and the body is standing still.
 				If the body collides, it will change direction a maximum of [code]max_slides[/code] times before it stops.
 				[code]floor_max_angle[/code] is the maximum angle (in radians) where a slope is still considered a floor (or a ceiling), rather than a wall. The default value equals 45 degrees.
-				If [code]infinite_inertia[/code] is true, body will be able to push [RigidBody2D] nodes, but it won't also detect any collisions with them. When false, it will interact with [RigidBody2D] nodes like with [StaticBody2D].
+				If [code]infinite_inertia[/code] is [code]true[/code], body will be able to push [RigidBody2D] nodes, but it won't also detect any collisions with them. If [code]false[/code] it will interact with [RigidBody2D] nodes like with [StaticBody2D].
 				Returns the [code]linear_velocity[/code] vector, rotated and/or scaled if a slide collision occurred. To get detailed information about collisions that occurred, use [method get_slide_collision].
 			</description>
 		</method>
diff --git a/doc/classes/KinematicCollision.xml b/doc/classes/KinematicCollision.xml
index 87eb9e77b5..4ce74df767 100644
--- a/doc/classes/KinematicCollision.xml
+++ b/doc/classes/KinematicCollision.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="KinematicCollision" inherits="Reference" category="Core" version="3.1">
+<class name="KinematicCollision" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Collision data for KinematicBody collisions.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/KinematicCollision2D.xml b/doc/classes/KinematicCollision2D.xml
index e403ada0b9..5a0303b7ba 100644
--- a/doc/classes/KinematicCollision2D.xml
+++ b/doc/classes/KinematicCollision2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="KinematicCollision2D" inherits="Reference" category="Core" version="3.1">
+<class name="KinematicCollision2D" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Collision data for KinematicBody2D collisions.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Label.xml b/doc/classes/Label.xml
index 36aa3c8b55..8d52cae186 100644
--- a/doc/classes/Label.xml
+++ b/doc/classes/Label.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Label" inherits="Control" category="Core" version="3.1">
+<class name="Label" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Displays plain text in a line or wrapped inside a rectangle. For formatted text, use [RichTextLabel].
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_line_count" qualifiers="const">
 			<return type="int">
@@ -37,7 +35,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Returns the number of lines shown. Useful if the [code]Label[/code] 's height cannot currently display all lines.
+				Returns the number of lines shown. Useful if the [Label] 's height cannot currently display all lines.
 			</description>
 		</method>
 	</methods>
@@ -46,7 +44,7 @@
 			Controls the text's horizontal align. Supports left, center, right, and fill, or justify. Set it to one of the [code]ALIGN_*[/code] constants.
 		</member>
 		<member name="autowrap" type="bool" setter="set_autowrap" getter="has_autowrap">
-			If [code]true[/code], wraps the text inside the node's bounding rectangle. If you resize the node, it will change its height automatically to show all the text. Default: false.
+			If [code]true[/code], wraps the text inside the node's bounding rectangle. If you resize the node, it will change its height automatically to show all the text. Default: [code]false[/code].
 		</member>
 		<member name="clip_text" type="bool" setter="set_clip_text" getter="is_clipping_text">
 			If [code]true[/code], the Label only shows the text that fits inside its bounding rectangle. It also lets you scale the node down freely.
diff --git a/doc/classes/LargeTexture.xml b/doc/classes/LargeTexture.xml
index 9526604e6d..4611bc228e 100644
--- a/doc/classes/LargeTexture.xml
+++ b/doc/classes/LargeTexture.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="LargeTexture" inherits="Texture" category="Core" version="3.1">
+<class name="LargeTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		A Texture capable of storing many smaller Textures with offsets.
 	</brief_description>
 	<description>
 		A Texture capable of storing many smaller Textures with offsets.
-		You can dynamically add pieces([Texture]) to this [code]LargeTexture[/code] using different offsets.
+		You can dynamically add pieces([Texture]) to this [LargeTexture] using different offsets.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_piece">
 			<return type="int">
@@ -20,21 +18,21 @@
 			<argument index="1" name="texture" type="Texture">
 			</argument>
 			<description>
-				Add another [Texture] to this [code]LargeTexture[/code], starting on offset "ofs".
+				Add another [Texture] to this [LargeTexture], starting on offset "ofs".
 			</description>
 		</method>
 		<method name="clear">
 			<return type="void">
 			</return>
 			<description>
-				Clears the [code]LargeTexture[/code].
+				Clears the [LargeTexture].
 			</description>
 		</method>
 		<method name="get_piece_count" qualifiers="const">
 			<return type="int">
 			</return>
 			<description>
-				Returns the number of pieces currently in this [code]LargeTexture[/code].
+				Returns the number of pieces currently in this [LargeTexture].
 			</description>
 		</method>
 		<method name="get_piece_offset" qualifiers="const">
@@ -83,7 +81,7 @@
 			<argument index="0" name="size" type="Vector2">
 			</argument>
 			<description>
-				Sets the size of this [code]LargeTexture[/code].
+				Sets the size of this [LargeTexture].
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/Light.xml b/doc/classes/Light.xml
index a7b0d86a7a..ecbc07ba72 100644
--- a/doc/classes/Light.xml
+++ b/doc/classes/Light.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Light" inherits="VisualInstance" category="Core" version="3.1">
+<class name="Light" inherits="VisualInstance" category="Core" version="3.2">
 	<brief_description>
 		Provides a base class for different kinds of light nodes.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/lights_and_shadows.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Light2D.xml b/doc/classes/Light2D.xml
index 3cb785e7b8..a487fdf2fe 100644
--- a/doc/classes/Light2D.xml
+++ b/doc/classes/Light2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Light2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Light2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Casts light in a 2D environment.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/2d/2d_lights_and_shadows.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/LightOccluder2D.xml b/doc/classes/LightOccluder2D.xml
index c7dfe9606b..a621937eb3 100644
--- a/doc/classes/LightOccluder2D.xml
+++ b/doc/classes/LightOccluder2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="LightOccluder2D" inherits="Node2D" category="Core" version="3.1">
+<class name="LightOccluder2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Occludes light cast by a Light2D, casting shadows.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/2d/2d_lights_and_shadows.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Line2D.xml b/doc/classes/Line2D.xml
index c1682e71e5..c55760767a 100644
--- a/doc/classes/Line2D.xml
+++ b/doc/classes/Line2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Line2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Line2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		A 2D line.
 	</brief_description>
@@ -8,16 +8,24 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_point">
 			<return type="void">
 			</return>
 			<argument index="0" name="position" type="Vector2">
 			</argument>
+			<argument index="1" name="at_position" type="int" default="-1">
+			</argument>
 			<description>
 				Add a point at the [code]position[/code]. Appends the point at the end of the line.
+				If [code]at_position[/code] is given, the point is inserted before the point number [code]at_position[/code], moving that point (and every point after) after the inserted point. If [code]at_position[/code] is not given, or is an illegal value ([code]at_position &lt; 0[/code] or [code]at_position &gt;= [method get_point_count][/code]), the point will be appended at the end of the point list.
+			</description>
+		</method>
+		<method name="clear_points">
+			<return type="void">
+			</return>
+			<description>
+				Removes all points from the line.
 			</description>
 		</method>
 		<method name="get_point_count" qualifiers="const">
diff --git a/doc/classes/LineEdit.xml b/doc/classes/LineEdit.xml
index 1e1ffd71b5..bb180b591d 100644
--- a/doc/classes/LineEdit.xml
+++ b/doc/classes/LineEdit.xml
@@ -1,15 +1,22 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="LineEdit" inherits="Control" category="Core" version="3.1">
+<class name="LineEdit" inherits="Control" category="Core" version="3.2">
 	<brief_description>
-		Control that provides single line string editing.
+		Control that provides single-line string editing.
 	</brief_description>
 	<description>
-		LineEdit provides a single line string editor, used for text fields.
+		LineEdit provides a single-line string editor, used for text fields. It features many built-in shortcuts which will always be available:
+		- Ctrl + C: Copy
+		- Ctrl + X: Cut
+		- Ctrl + V or Ctrl + Y: Paste/"yank"
+		- Ctrl + Z: Undo
+		- Ctrl + Shift + Z: Redo
+		- Ctrl + U: Delete text from the cursor position to the beginning of the line
+		- Ctrl + K: Delete text from the cursor position to the end of the line
+		- Ctrl + A: Select all text
+		- Up/Down arrow: Move the cursor to the beginning/end of the line
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="append_at_cursor">
 			<return type="void">
@@ -24,7 +31,7 @@
 			<return type="void">
 			</return>
 			<description>
-				Erases the [code]LineEdit[/code] text.
+				Erases the [LineEdit] text.
 			</description>
 		</method>
 		<method name="deselect">
@@ -38,7 +45,7 @@
 			<return type="PopupMenu">
 			</return>
 			<description>
-				Returns the [PopupMenu] of this [code]LineEdit[/code]. By default, this menu is displayed when right-clicking on the [code]LineEdit[/code].
+				Returns the [PopupMenu] of this [LineEdit]. By default, this menu is displayed when right-clicking on the [LineEdit].
 			</description>
 		</method>
 		<method name="menu_option">
@@ -58,7 +65,7 @@
 			<argument index="1" name="to" type="int" default="-1">
 			</argument>
 			<description>
-				Selects characters inside [code]LineEdit[/code] between [code]from[/code] and [code]to[/code]. By default [code]from[/code] is at the beginning and [code]to[/code] at the end.
+				Selects characters inside [LineEdit] between [code]from[/code] and [code]to[/code]. By default [code]from[/code] is at the beginning and [code]to[/code] at the end.
 				[codeblock]
 				text = "Welcome"
 				select()     # Welcome
@@ -86,10 +93,10 @@
 			Duration (in seconds) of a caret's blinking cycle.
 		</member>
 		<member name="caret_position" type="int" setter="set_cursor_position" getter="get_cursor_position">
-			The cursor's position inside the [code]LineEdit[/code]. When set, the text may scroll to accommodate it.
+			The cursor's position inside the [LineEdit]. When set, the text may scroll to accommodate it.
 		</member>
 		<member name="clear_button_enabled" type="bool" setter="set_clear_button_enabled" getter="is_clear_button_enabled">
-			If [code]true[/code], the [code]LineEdit[/code] will show a clear button if [code]text[/code] is not empty.
+			If [code]true[/code], the [LineEdit] will show a clear button if [code]text[/code] is not empty.
 		</member>
 		<member name="context_menu_enabled" type="bool" setter="set_context_menu_enabled" getter="is_context_menu_enabled">
 			If [code]true[/code], the context menu will appear when right clicked.
@@ -98,19 +105,19 @@
 			If [code]false[/code], existing text cannot be modified and new text cannot be added.
 		</member>
 		<member name="expand_to_text_length" type="bool" setter="set_expand_to_text_length" getter="get_expand_to_text_length">
-			If [code]true[/code], the [code]LineEdit[/code] width will increase to stay longer than the [member text]. It will [b]not[/b] compress if the [member text] is shortened.
+			If [code]true[/code], the [LineEdit] width will increase to stay longer than the [member text]. It will [b]not[/b] compress if the [member text] is shortened.
 		</member>
 		<member name="focus_mode" type="int" setter="set_focus_mode" getter="get_focus_mode" enum="Control.FocusMode">
-			Defines how the [code]LineEdit[/code] can grab focus (Keyboard and mouse, only keyboard, or none). See [code]enum FocusMode[/code] in [Control] for details.
+			Defines how the [LineEdit] can grab focus (Keyboard and mouse, only keyboard, or none). See [enum Control.FocusMode] in [Control] for details.
 		</member>
 		<member name="max_length" type="int" setter="set_max_length" getter="get_max_length">
-			Maximum amount of characters that can be entered inside the [code]LineEdit[/code]. If [code]0[/code], there is no limit.
+			Maximum amount of characters that can be entered inside the [LineEdit]. If [code]0[/code], there is no limit.
 		</member>
 		<member name="placeholder_alpha" type="float" setter="set_placeholder_alpha" getter="get_placeholder_alpha">
 			Opacity of the [member placeholder_text]. From [code]0[/code] to [code]1[/code].
 		</member>
 		<member name="placeholder_text" type="String" setter="set_placeholder" getter="get_placeholder">
-			Text shown when the [code]LineEdit[/code] is empty. It is [b]not[/b] the [code]LineEdit[/code]'s default value (see [member text]).
+			Text shown when the [LineEdit] is empty. It is [b]not[/b] the [LineEdit]'s default value (see [member text]).
 		</member>
 		<member name="secret" type="bool" setter="set_secret" getter="is_secret">
 			If [code]true[/code], every character is replaced with the secret character (see [member secret_character]).
@@ -119,7 +126,7 @@
 			The character to use to mask secret input (defaults to "*"). Only a single character can be used as the secret character.
 		</member>
 		<member name="text" type="String" setter="set_text" getter="get_text">
-			String value of the [code]LineEdit[/code].
+			String value of the [LineEdit].
 		</member>
 	</members>
 	<signals>
@@ -134,22 +141,22 @@
 			<argument index="0" name="new_text" type="String">
 			</argument>
 			<description>
-				Emitted when the user presses [code]KEY_ENTER[/code] on the [code]LineEdit[/code].
+				Emitted when the user presses [constant KEY_ENTER] on the [LineEdit].
 			</description>
 		</signal>
 	</signals>
 	<constants>
 		<constant name="ALIGN_LEFT" value="0" enum="Align">
-			Aligns the text on the left hand side of the [code]LineEdit[/code].
+			Aligns the text on the left hand side of the [LineEdit].
 		</constant>
 		<constant name="ALIGN_CENTER" value="1" enum="Align">
-			Centers the text in the middle of the [code]LineEdit[/code].
+			Centers the text in the middle of the [LineEdit].
 		</constant>
 		<constant name="ALIGN_RIGHT" value="2" enum="Align">
-			Aligns the text on the right hand side of the [code]LineEdit[/code].
+			Aligns the text on the right hand side of the [LineEdit].
 		</constant>
 		<constant name="ALIGN_FILL" value="3" enum="Align">
-			Stretches whitespaces to fit the [code]LineEdit[/code]'s width.
+			Stretches whitespaces to fit the [LineEdit]'s width.
 		</constant>
 		<constant name="MENU_CUT" value="0" enum="MenuItems">
 			Cuts (copies and clears) the selected text.
@@ -161,10 +168,10 @@
 			Pastes the clipboard text over the selected text (or at the cursor's position).
 		</constant>
 		<constant name="MENU_CLEAR" value="3" enum="MenuItems">
-			Erases the whole [code]LineEdit[/code] text.
+			Erases the whole [LineEdit] text.
 		</constant>
 		<constant name="MENU_SELECT_ALL" value="4" enum="MenuItems">
-			Selects the whole [code]LineEdit[/code] text.
+			Selects the whole [LineEdit] text.
 		</constant>
 		<constant name="MENU_UNDO" value="5" enum="MenuItems">
 			Undoes the previous action.
diff --git a/doc/classes/LineShape2D.xml b/doc/classes/LineShape2D.xml
index 4a5486583a..94409cbd83 100644
--- a/doc/classes/LineShape2D.xml
+++ b/doc/classes/LineShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="LineShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="LineShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Line shape for 2D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/LinkButton.xml b/doc/classes/LinkButton.xml
index a09edfad89..ef9f785f0f 100644
--- a/doc/classes/LinkButton.xml
+++ b/doc/classes/LinkButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="LinkButton" inherits="BaseButton" category="Core" version="3.1">
+<class name="LinkButton" inherits="BaseButton" category="Core" version="3.2">
 	<brief_description>
 		Simple button used to represent a link to some resource.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Listener.xml b/doc/classes/Listener.xml
index 720a7eafc5..130263a069 100644
--- a/doc/classes/Listener.xml
+++ b/doc/classes/Listener.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Listener" inherits="Spatial" category="Core" version="3.1">
+<class name="Listener" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear_current">
 			<return type="void">
diff --git a/doc/classes/MainLoop.xml b/doc/classes/MainLoop.xml
index 01836cff95..324ee72b8e 100644
--- a/doc/classes/MainLoop.xml
+++ b/doc/classes/MainLoop.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MainLoop" inherits="Object" category="Core" version="3.1">
+<class name="MainLoop" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Main loop is the abstract main loop base class.
 	</brief_description>
 	<description>
-		Main loop is the abstract main loop base class. All other main loop classes are derived from it. Upon application start, a [code]MainLoop[/code] has to be provided to OS, else the application will exit. This happens automatically (and a [SceneTree] is created), unless a main [Script] is supplied, which may or not create and return a [code]MainLoop[/code].
+		Main loop is the abstract main loop base class. All other main loop classes are derived from it. Upon application start, a [MainLoop] has to be provided to OS, else the application will exit. This happens automatically (and a [SceneTree] is created), unless a main [Script] is supplied, which may or not create and return a [MainLoop].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_drop_files" qualifiers="virtual">
 			<return type="void">
@@ -114,29 +112,29 @@
 		</method>
 	</methods>
 	<constants>
-		<constant name="NOTIFICATION_WM_MOUSE_ENTER" value="2">
+		<constant name="NOTIFICATION_WM_MOUSE_ENTER" value="1002">
 		</constant>
-		<constant name="NOTIFICATION_WM_MOUSE_EXIT" value="3">
+		<constant name="NOTIFICATION_WM_MOUSE_EXIT" value="1003">
 		</constant>
-		<constant name="NOTIFICATION_WM_FOCUS_IN" value="4">
+		<constant name="NOTIFICATION_WM_FOCUS_IN" value="1004">
 		</constant>
-		<constant name="NOTIFICATION_WM_FOCUS_OUT" value="5">
+		<constant name="NOTIFICATION_WM_FOCUS_OUT" value="1005">
 		</constant>
-		<constant name="NOTIFICATION_WM_QUIT_REQUEST" value="6">
+		<constant name="NOTIFICATION_WM_QUIT_REQUEST" value="1006">
 		</constant>
-		<constant name="NOTIFICATION_WM_GO_BACK_REQUEST" value="7">
+		<constant name="NOTIFICATION_WM_GO_BACK_REQUEST" value="1007">
 		</constant>
-		<constant name="NOTIFICATION_WM_UNFOCUS_REQUEST" value="8">
+		<constant name="NOTIFICATION_WM_UNFOCUS_REQUEST" value="1008">
 		</constant>
-		<constant name="NOTIFICATION_OS_MEMORY_WARNING" value="9">
+		<constant name="NOTIFICATION_OS_MEMORY_WARNING" value="1009">
 		</constant>
-		<constant name="NOTIFICATION_TRANSLATION_CHANGED" value="90">
+		<constant name="NOTIFICATION_TRANSLATION_CHANGED" value="1010">
 		</constant>
-		<constant name="NOTIFICATION_WM_ABOUT" value="91">
+		<constant name="NOTIFICATION_WM_ABOUT" value="1011">
 		</constant>
-		<constant name="NOTIFICATION_CRASH" value="92">
+		<constant name="NOTIFICATION_CRASH" value="1012">
 		</constant>
-		<constant name="NOTIFICATION_OS_IME_UPDATE" value="93">
+		<constant name="NOTIFICATION_OS_IME_UPDATE" value="1013">
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/MarginContainer.xml b/doc/classes/MarginContainer.xml
index 15613e4bec..0993ed88ca 100644
--- a/doc/classes/MarginContainer.xml
+++ b/doc/classes/MarginContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MarginContainer" inherits="Container" category="Core" version="3.1">
+<class name="MarginContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Simple margin container.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Marshalls.xml b/doc/classes/Marshalls.xml
index 687f81eec7..0d07d8b649 100644
--- a/doc/classes/Marshalls.xml
+++ b/doc/classes/Marshalls.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Marshalls" inherits="Reference" category="Core" version="3.1">
+<class name="Marshalls" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Data transformation (marshalling) and encoding helpers.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="base64_to_raw">
 			<return type="PoolByteArray">
@@ -34,8 +32,11 @@
 			</return>
 			<argument index="0" name="base64_str" type="String">
 			</argument>
+			<argument index="1" name="allow_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Return [Variant] of a given base64 encoded String.
+				Return [Variant] of a given base64 encoded String. When [code]allow_objects[/code] is [code]true[/code] decoding objects is allowed.
+				[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
 			</description>
 		</method>
 		<method name="raw_to_base64">
@@ -61,8 +62,10 @@
 			</return>
 			<argument index="0" name="variant" type="Variant">
 			</argument>
+			<argument index="1" name="full_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Return base64 encoded String of a given [Variant].
+				Return base64 encoded String of a given [Variant]. When [code]full_objects[/code] is [code]true[/code] encoding objects is allowed (and can potentially include code).
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/Material.xml b/doc/classes/Material.xml
index 7420a5deb0..848a43e6c4 100644
--- a/doc/classes/Material.xml
+++ b/doc/classes/Material.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Material" inherits="Resource" category="Core" version="3.1">
+<class name="Material" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Abstract base [Resource] for coloring and shading geometry.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/MenuButton.xml b/doc/classes/MenuButton.xml
index 636edd504b..dadc31b794 100644
--- a/doc/classes/MenuButton.xml
+++ b/doc/classes/MenuButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MenuButton" inherits="Button" category="Core" version="3.1">
+<class name="MenuButton" inherits="Button" category="Core" version="3.2">
 	<brief_description>
 		Special button that brings up a [PopupMenu] when clicked.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_popup" qualifiers="const">
 			<return type="PopupMenu">
diff --git a/doc/classes/Mesh.xml b/doc/classes/Mesh.xml
index 4852d4701d..ae035341f6 100644
--- a/doc/classes/Mesh.xml
+++ b/doc/classes/Mesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Mesh" inherits="Resource" category="Core" version="3.1">
+<class name="Mesh" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A [Resource] that contains vertex-array based geometry.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="create_convex_shape" qualifiers="const">
 			<return type="Shape">
@@ -52,7 +50,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Return the amount of surfaces that the [code]Mesh[/code] holds.
+				Return the amount of surfaces that the [Mesh] holds.
 			</description>
 		</method>
 		<method name="surface_get_arrays" qualifiers="const">
diff --git a/doc/classes/MeshDataTool.xml b/doc/classes/MeshDataTool.xml
index 7bd98323c7..eeb251c8c7 100644
--- a/doc/classes/MeshDataTool.xml
+++ b/doc/classes/MeshDataTool.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MeshDataTool" inherits="Reference" category="Core" version="3.1">
+<class name="MeshDataTool" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Helper tool to access and edit [Mesh] data.
 	</brief_description>
@@ -20,8 +20,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
diff --git a/doc/classes/MeshInstance.xml b/doc/classes/MeshInstance.xml
index bcc9a7cad9..c5c15e0ddc 100644
--- a/doc/classes/MeshInstance.xml
+++ b/doc/classes/MeshInstance.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MeshInstance" inherits="GeometryInstance" category="Core" version="3.1">
+<class name="MeshInstance" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 		Node that instances meshes into a scenario.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="create_convex_collision">
 			<return type="void">
diff --git a/doc/classes/MeshInstance2D.xml b/doc/classes/MeshInstance2D.xml
index c26665b6b5..d18ba96a95 100644
--- a/doc/classes/MeshInstance2D.xml
+++ b/doc/classes/MeshInstance2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MeshInstance2D" inherits="Node2D" category="Core" version="3.1">
+<class name="MeshInstance2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
@@ -7,8 +7,6 @@
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/2d/2d_meshes.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/MeshLibrary.xml b/doc/classes/MeshLibrary.xml
index 3726524638..de4f6cdf72 100644
--- a/doc/classes/MeshLibrary.xml
+++ b/doc/classes/MeshLibrary.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MeshLibrary" inherits="Resource" category="Core" version="3.1">
+<class name="MeshLibrary" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Library of meshes.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
@@ -68,6 +66,14 @@
 			<description>
 			</description>
 		</method>
+		<method name="get_item_navmesh_transform" qualifiers="const">
+			<return type="Transform">
+			</return>
+			<argument index="0" name="id" type="int">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="get_item_preview" qualifiers="const">
 			<return type="Texture">
 			</return>
@@ -132,6 +138,16 @@
 			<description>
 			</description>
 		</method>
+		<method name="set_item_navmesh_transform">
+			<return type="void">
+			</return>
+			<argument index="0" name="id" type="int">
+			</argument>
+			<argument index="1" name="navmesh" type="Transform">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="set_item_preview">
 			<return type="void">
 			</return>
diff --git a/doc/classes/MeshTexture.xml b/doc/classes/MeshTexture.xml
new file mode 100644
index 0000000000..d305cca482
--- /dev/null
+++ b/doc/classes/MeshTexture.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="MeshTexture" inherits="Texture" category="Core" version="3.2">
+	<brief_description>
+		Simple texture that uses a mesh to draw itself.
+	</brief_description>
+	<description>
+		Simple texture that uses a mesh to draw itself. It's limited because flags can't be changed and region drawing is not supported.
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="base_texture" type="Texture" setter="set_base_texture" getter="get_base_texture">
+			Set the base texture that the Mesh will use to draw.
+		</member>
+		<member name="image_size" type="Vector2" setter="set_image_size" getter="get_image_size">
+			Set the size of the image, needed for reference.
+		</member>
+		<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
+			Set the mesh used to draw. It must be a mesh using 2D vertices.
+		</member>
+	</members>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/MultiMesh.xml b/doc/classes/MultiMesh.xml
index 9bee8e2100..0e6b5ef1cb 100644
--- a/doc/classes/MultiMesh.xml
+++ b/doc/classes/MultiMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MultiMesh" inherits="Resource" category="Core" version="3.1">
+<class name="MultiMesh" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Provides high performance mesh instancing.
 	</brief_description>
@@ -12,8 +12,6 @@
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/3d/vertex_animation/animating_thousands_of_fish.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_aabb" qualifiers="const">
 			<return type="AABB">
@@ -46,7 +44,7 @@
 			<argument index="0" name="instance" type="int">
 			</argument>
 			<description>
-				Return the transform of a specific instance.
+				Return the [Transform] of a specific instance.
 			</description>
 		</method>
 		<method name="get_instance_transform_2d" qualifiers="const">
@@ -55,6 +53,18 @@
 			<argument index="0" name="instance" type="int">
 			</argument>
 			<description>
+				Return the [Transform2D] of a specific instance.
+			</description>
+		</method>
+		<method name="set_as_bulk_array">
+			<return type="void">
+			</return>
+			<argument index="0" name="arg0" type="PoolRealArray">
+			</argument>
+			<description>
+				Set all data related to the instances in one go. This is especially useful when loading the data from disk or preparing the data from GDNative.
+				All data is packed in one large float array. An array may look like this: Transform for instance 1, color data for instance 1, custom data for instance 1, transform for instance 2, color data for instance 2, etc...
+				[Transform] is stored as 12 floats, [Transform2D] is stored as 8 floats, COLOR_8BIT / CUSTOM_DATA_8BIT is stored as 1 float (4 bytes as is) and COLOR_FLOAT / CUSTOM_DATA_FLOAT is stored as 4 floats.
 			</description>
 		</method>
 		<method name="set_instance_color">
@@ -66,7 +76,7 @@
 			</argument>
 			<description>
 				Set the color of a specific instance.
-				For the color to take effect, ensure that [member color_format] is non-[code]null[/code] on the [code]MultiMesh[/code] and [member SpatialMaterial.vertex_color_use_as_albedo] is [code]true[/code] on the material.
+				For the color to take effect, ensure that [member color_format] is non-[code]null[/code] on the [MultiMesh] and [member SpatialMaterial.vertex_color_use_as_albedo] is [code]true[/code] on the material.
 			</description>
 		</method>
 		<method name="set_instance_custom_data">
@@ -88,7 +98,7 @@
 			<argument index="1" name="transform" type="Transform">
 			</argument>
 			<description>
-				Set the transform for a specific instance.
+				Set the [Transform] for a specific instance.
 			</description>
 		</method>
 		<method name="set_instance_transform_2d">
@@ -99,6 +109,7 @@
 			<argument index="1" name="transform" type="Transform2D">
 			</argument>
 			<description>
+				Set the [Transform2D] for a specific instance.
 			</description>
 		</method>
 	</methods>
@@ -110,7 +121,7 @@
 			Format of custom data in custom data array that gets passed to shader.
 		</member>
 		<member name="instance_count" type="int" setter="set_instance_count" getter="get_instance_count">
-			Number of instances that will get drawn.
+			Number of instances that will get drawn. This clears and (re)sizes the buffers. By default all instances are drawn but you can limit this with [member visible_instance_count].
 		</member>
 		<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
 			Mesh to be drawn.
@@ -118,6 +129,9 @@
 		<member name="transform_format" type="int" setter="set_transform_format" getter="get_transform_format" enum="MultiMesh.TransformFormat">
 			Format of transform used to transform mesh, either 2D or 3D.
 		</member>
+		<member name="visible_instance_count" type="int" setter="set_visible_instance_count" getter="get_visible_instance_count">
+			Limits the number of instances drawn, -1 draws all instances. Changing this does not change the sizes of the buffers.
+		</member>
 	</members>
 	<constants>
 		<constant name="TRANSFORM_2D" value="0" enum="TransformFormat">
diff --git a/doc/classes/MultiMeshInstance.xml b/doc/classes/MultiMeshInstance.xml
index 866ffffb5f..70834d6085 100644
--- a/doc/classes/MultiMeshInstance.xml
+++ b/doc/classes/MultiMeshInstance.xml
@@ -1,23 +1,21 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MultiMeshInstance" inherits="GeometryInstance" category="Core" version="3.1">
+<class name="MultiMeshInstance" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 		Node that instances a [MultiMesh].
 	</brief_description>
 	<description>
-		[code]MultiMeshInstance[/code] is a specialized node to instance [GeometryInstance]s based on a [MultiMesh] resource.
+		[MultiMeshInstance] is a specialized node to instance [GeometryInstance]s based on a [MultiMesh] resource.
 		This is useful to optimize the rendering of a high amount of instances of a given mesh (for example tree in a forest or grass strands).
 	</description>
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/3d/vertex_animation/animating_thousands_of_fish.html</link>
 		<link>http://docs.godotengine.org/en/latest/tutorials/3d/using_multi_mesh_instance.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="multimesh" type="MultiMesh" setter="set_multimesh" getter="get_multimesh">
-			The [MultiMesh] resource that will be used and shared among all instances of the [code]MultiMeshInstance[/code].
+			The [MultiMesh] resource that will be used and shared among all instances of the [MultiMeshInstance].
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/MultiplayerAPI.xml b/doc/classes/MultiplayerAPI.xml
index f3e26a3bcb..7b5794bbfc 100644
--- a/doc/classes/MultiplayerAPI.xml
+++ b/doc/classes/MultiplayerAPI.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MultiplayerAPI" inherits="Reference" category="Core" version="3.1">
+<class name="MultiplayerAPI" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		High Level Multiplayer API.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
@@ -89,6 +87,10 @@
 		</method>
 	</methods>
 	<members>
+		<member name="allow_object_decoding" type="bool" setter="set_allow_object_decoding" getter="is_object_decoding_allowed">
+			If [code]true[/code] (or if the [member network_peer] [member PacketPeer.allow_object_decoding] the MultiplayerAPI will allow encoding and decoding of object during RPCs/RSETs.
+			[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
+		</member>
 		<member name="network_peer" type="NetworkedMultiplayerPeer" setter="set_network_peer" getter="get_network_peer">
 			The peer object to handle the RPC system (effectively enabling networking when set). Depending on the peer itself, the MultiplayerAPI will become a network server (check with [method is_network_server]) and will set root node's network mode to master (see NETWORK_MODE_* constants in [Node]), or it will become a regular peer with root node set to puppet. All child nodes are set to inherit the network mode by default. Handling of networking-related events (connection, disconnection, new clients) is done by connecting to MultiplayerAPI's signals.
 		</member>
diff --git a/doc/classes/Mutex.xml b/doc/classes/Mutex.xml
index 718b3b04b2..73c0a53f59 100644
--- a/doc/classes/Mutex.xml
+++ b/doc/classes/Mutex.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Mutex" inherits="Reference" category="Core" version="3.1">
+<class name="Mutex" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		A synchronization Mutex.
 	</brief_description>
@@ -8,28 +8,26 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="lock">
 			<return type="void">
 			</return>
 			<description>
-				Lock this [code]Mutex[/code], blocks until it is unlocked by the current owner.
+				Lock this [Mutex], blocks until it is unlocked by the current owner.
 			</description>
 		</method>
 		<method name="try_lock">
 			<return type="int" enum="Error">
 			</return>
 			<description>
-				Try locking this [code]Mutex[/code], does not block. Returns [code]OK[/code] on success, [code]ERR_BUSY[/code] otherwise.
+				Try locking this [Mutex], does not block. Returns [code]OK[/code] on success, [code]ERR_BUSY[/code] otherwise.
 			</description>
 		</method>
 		<method name="unlock">
 			<return type="void">
 			</return>
 			<description>
-				Unlock this [code]Mutex[/code], leaving it to other threads.
+				Unlock this [Mutex], leaving it to other threads.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/Navigation.xml b/doc/classes/Navigation.xml
index 9d830168d3..3690c1d682 100644
--- a/doc/classes/Navigation.xml
+++ b/doc/classes/Navigation.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Navigation" inherits="Spatial" category="Core" version="3.1">
+<class name="Navigation" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Mesh-based navigation and pathfinding node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_closest_point">
 			<return type="Vector3">
diff --git a/doc/classes/Navigation2D.xml b/doc/classes/Navigation2D.xml
index 4982c6f87d..67b5d72182 100644
--- a/doc/classes/Navigation2D.xml
+++ b/doc/classes/Navigation2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Navigation2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Navigation2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		2D navigation and pathfinding node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_closest_point">
 			<return type="Vector2">
diff --git a/doc/classes/NavigationMesh.xml b/doc/classes/NavigationMesh.xml
index f0654e5b12..2788eb053a 100644
--- a/doc/classes/NavigationMesh.xml
+++ b/doc/classes/NavigationMesh.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationMesh" inherits="Resource" category="Core" version="3.1">
+<class name="NavigationMesh" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_polygon">
 			<return type="void">
diff --git a/doc/classes/NavigationMeshInstance.xml b/doc/classes/NavigationMeshInstance.xml
index 643bfc726f..3b11005e38 100644
--- a/doc/classes/NavigationMeshInstance.xml
+++ b/doc/classes/NavigationMeshInstance.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationMeshInstance" inherits="Spatial" category="Core" version="3.1">
+<class name="NavigationMeshInstance" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/NavigationPolygon.xml b/doc/classes/NavigationPolygon.xml
index 53389d6599..2630ae1377 100644
--- a/doc/classes/NavigationPolygon.xml
+++ b/doc/classes/NavigationPolygon.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPolygon" inherits="Resource" category="Core" version="3.1">
+<class name="NavigationPolygon" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A node that has methods to draw outlines or use indices of vertices to create navigation polygons.
 	</brief_description>
@@ -25,8 +25,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_outline">
 			<return type="void">
diff --git a/doc/classes/NavigationPolygonInstance.xml b/doc/classes/NavigationPolygonInstance.xml
index ff95f652f1..e566e25336 100644
--- a/doc/classes/NavigationPolygonInstance.xml
+++ b/doc/classes/NavigationPolygonInstance.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NavigationPolygonInstance" inherits="Node2D" category="Core" version="3.1">
+<class name="NavigationPolygonInstance" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/NetworkedMultiplayerPeer.xml b/doc/classes/NetworkedMultiplayerPeer.xml
index 42f08b36af..e5cadb6ffe 100644
--- a/doc/classes/NetworkedMultiplayerPeer.xml
+++ b/doc/classes/NetworkedMultiplayerPeer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NetworkedMultiplayerPeer" inherits="PacketPeer" category="Core" version="3.1">
+<class name="NetworkedMultiplayerPeer" inherits="PacketPeer" category="Core" version="3.2">
 	<brief_description>
 		A high-level network interface to simplify multiplayer interactions.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/networking/high_level_multiplayer.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_connection_status" qualifiers="const">
 			<return type="int" enum="NetworkedMultiplayerPeer.ConnectionStatus">
@@ -23,14 +21,14 @@
 			<return type="int">
 			</return>
 			<description>
-				Returns the ID of the [code]NetworkedMultiplayerPeer[/code] who sent the most recent packet.
+				Returns the ID of the [NetworkedMultiplayerPeer] who sent the most recent packet.
 			</description>
 		</method>
 		<method name="get_unique_id" qualifiers="const">
 			<return type="int">
 			</return>
 			<description>
-				Returns the ID of this [code]NetworkedMultiplayerPeer[/code].
+				Returns the ID of this [NetworkedMultiplayerPeer].
 			</description>
 		</method>
 		<method name="poll">
@@ -53,7 +51,7 @@
 	</methods>
 	<members>
 		<member name="refuse_new_connections" type="bool" setter="set_refuse_new_connections" getter="is_refusing_new_connections">
-			If [code]true[/code], this [code]NetworkedMultiplayerPeer[/code] refuses new connections. Default value: [code]false[/code].
+			If [code]true[/code], this [NetworkedMultiplayerPeer] refuses new connections. Default value: [code]false[/code].
 		</member>
 		<member name="transfer_mode" type="int" setter="set_transfer_mode" getter="get_transfer_mode" enum="NetworkedMultiplayerPeer.TransferMode">
 			The manner in which to send packets to the [code]target_peer[/code]. See [enum TransferMode].
diff --git a/doc/classes/Nil.xml b/doc/classes/Nil.xml
index e09dba6511..a5c1ade6ed 100644
--- a/doc/classes/Nil.xml
+++ b/doc/classes/Nil.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Nil" category="Built-In Types" version="3.1">
+<class name="Nil" category="Built-In Types" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Nil">
 			<argument index="0" name="from" type="PoolColorArray">
diff --git a/doc/classes/NinePatchRect.xml b/doc/classes/NinePatchRect.xml
index f40b32951f..3095da14be 100644
--- a/doc/classes/NinePatchRect.xml
+++ b/doc/classes/NinePatchRect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NinePatchRect" inherits="Control" category="Core" version="3.1">
+<class name="NinePatchRect" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Scalable texture-based frame that tiles the texture's centers and sides, but keeps the corners' original size. Perfect for panels and dialog boxes.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Node.xml b/doc/classes/Node.xml
index e872fee1cc..1fb2e7350f 100644
--- a/doc/classes/Node.xml
+++ b/doc/classes/Node.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Node" inherits="Object" category="Core" version="3.1">
+<class name="Node" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Base class for all [i]scene[/i] objects.
 	</brief_description>
@@ -19,8 +19,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/step_by_step/scenes_and_nodes.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_enter_tree" qualifiers="virtual">
 			<return type="void">
@@ -42,6 +40,8 @@
 			<return type="String">
 			</return>
 			<description>
+				The string returned from this method is displayed as a warning in the "Scene Dock" if the script that overrides it is a [code]tool[/code] script.
+				Returning an empty string produces no warning.
 			</description>
 		</method>
 		<method name="_input" qualifiers="virtual">
@@ -146,6 +146,7 @@
 			</argument>
 			<description>
 				Adds the node to a group. Groups are helpers to name and organize a subset of nodes, for example "enemies" or "collectables". A node can be in any number of groups. Nodes can be assigned a group at any time, but will not be added until they are inside the scene tree (see [method is_inside_tree]). See notes in the description, and the group methods in [SceneTree].
+				[code]persistent[/code] option is used when packing node to [PackedScene] and saving to file. Non-persistent groups aren't stored.
 			</description>
 		</method>
 		<method name="can_process" qualifiers="const">
@@ -275,14 +276,14 @@
 			<argument index="0" name="path" type="NodePath">
 			</argument>
 			<description>
-				Similar to [method get_node], but does not raise an error when [code]path[/code] does not point to a valid [code]Node[/code].
+				Similar to [method get_node], but does not raise an error when [code]path[/code] does not point to a valid [Node].
 			</description>
 		</method>
 		<method name="get_parent" qualifiers="const">
 			<return type="Node">
 			</return>
 			<description>
-				Returns the parent node of the current node, or an empty [code]Node[/code] if the node lacks a parent.
+				Returns the parent node of the current node, or an empty [Node] if the node lacks a parent.
 			</description>
 		</method>
 		<method name="get_path" qualifiers="const">
@@ -885,15 +886,37 @@
 		<constant name="NOTIFICATION_PATH_CHANGED" value="23">
 			Notification received when the node's [NodePath] changed.
 		</constant>
-		<constant name="NOTIFICATION_TRANSLATION_CHANGED" value="24">
-			Notification received when translations may have changed. Can be triggered by the user changing the locale. Can be used to respond to language changes, for example to change the UI strings on the fly. Useful when working with the built-in translation support, like [method Object.tr].
-		</constant>
 		<constant name="NOTIFICATION_INTERNAL_PROCESS" value="25">
 			Notification received every frame when the internal process flag is set (see [method set_process_internal]).
 		</constant>
 		<constant name="NOTIFICATION_INTERNAL_PHYSICS_PROCESS" value="26">
 			Notification received every frame when the internal physics process flag is set (see [method set_physics_process_internal]).
 		</constant>
+		<constant name="NOTIFICATION_WM_MOUSE_ENTER" value="1002">
+		</constant>
+		<constant name="NOTIFICATION_WM_MOUSE_EXIT" value="1003">
+		</constant>
+		<constant name="NOTIFICATION_WM_FOCUS_IN" value="1004">
+		</constant>
+		<constant name="NOTIFICATION_WM_FOCUS_OUT" value="1005">
+		</constant>
+		<constant name="NOTIFICATION_WM_QUIT_REQUEST" value="1006">
+		</constant>
+		<constant name="NOTIFICATION_WM_GO_BACK_REQUEST" value="1007">
+		</constant>
+		<constant name="NOTIFICATION_WM_UNFOCUS_REQUEST" value="1008">
+		</constant>
+		<constant name="NOTIFICATION_OS_MEMORY_WARNING" value="1009">
+		</constant>
+		<constant name="NOTIFICATION_TRANSLATION_CHANGED" value="1010">
+			Notification received when translations may have changed. Can be triggered by the user changing the locale. Can be used to respond to language changes, for example to change the UI strings on the fly. Useful when working with the built-in translation support, like [method Object.tr].
+		</constant>
+		<constant name="NOTIFICATION_WM_ABOUT" value="1011">
+		</constant>
+		<constant name="NOTIFICATION_CRASH" value="1012">
+		</constant>
+		<constant name="NOTIFICATION_OS_IME_UPDATE" value="1013">
+		</constant>
 		<constant name="PAUSE_MODE_INHERIT" value="0" enum="PauseMode">
 			Inherits pause mode from the node's parent. For the root node, it is equivalent to PAUSE_MODE_STOP. Default.
 		</constant>
diff --git a/doc/classes/Node2D.xml b/doc/classes/Node2D.xml
index 80f9329402..1b97f3267f 100644
--- a/doc/classes/Node2D.xml
+++ b/doc/classes/Node2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Node2D" inherits="CanvasItem" category="Core" version="3.1">
+<class name="Node2D" inherits="CanvasItem" category="Core" version="3.2">
 	<brief_description>
 		A 2D game object, parent of all 2D related nodes. Has a position, rotation, scale and Z-index.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/custom_drawing_in_2d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="apply_scale">
 			<return type="void">
@@ -65,7 +63,7 @@
 			<argument index="1" name="scaled" type="bool" default="false">
 			</argument>
 			<description>
-				Applies a local translation on the node's X axis based on the [method Node._process]'s [code]delta[/code]. If [code]scaled[/code] is false, normalizes the movement.
+				Applies a local translation on the node's X axis based on the [method Node._process]'s [code]delta[/code]. If [code]scaled[/code] is [code]false[/code], normalizes the movement.
 			</description>
 		</method>
 		<method name="move_local_y">
@@ -76,7 +74,7 @@
 			<argument index="1" name="scaled" type="bool" default="false">
 			</argument>
 			<description>
-				Applies a local translation on the node's Y axis based on the [method Node._process]'s [code]delta[/code]. If [code]scaled[/code] is false, normalizes the movement.
+				Applies a local translation on the node's Y axis based on the [method Node._process]'s [code]delta[/code]. If [code]scaled[/code] is [code]false[/code], normalizes the movement.
 			</description>
 		</method>
 		<method name="rotate">
diff --git a/doc/classes/NodePath.xml b/doc/classes/NodePath.xml
index f589fa12b7..73739ba79a 100644
--- a/doc/classes/NodePath.xml
+++ b/doc/classes/NodePath.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NodePath" category="Built-In Types" version="3.1">
+<class name="NodePath" category="Built-In Types" version="3.2">
 	<brief_description>
 		Pre-parsed scene tree path.
 	</brief_description>
 	<description>
 		A pre-parsed relative or absolute path in a scene tree, for use with [method Node.get_node] and similar functions. It can reference a node, a resource within a node, or a property of a node or resource. For instance, [code]"Path2D/PathFollow2D/Sprite:texture:size"[/code] would refer to the size property of the texture resource on the node named "Sprite" which is a child of the other named nodes in the path. Note that if you want to get a resource, you must end the path with a colon, otherwise the last element will be used as a property name.
-		You will usually just pass a string to [method Node.get_node] and it will be automatically converted, but you may occasionally want to parse a path ahead of time with [code]NodePath[/code] or the literal syntax [code]@"path"[/code]. Exporting a [code]NodePath[/code] variable will give you a node selection widget in the properties panel of the editor, which can often be useful.
-		A [code]NodePath[/code] is made up of a list of node names, a list of "subnode" (resource) names, and the name of a property in the final node or resource.
+		You will usually just pass a string to [method Node.get_node] and it will be automatically converted, but you may occasionally want to parse a path ahead of time with [NodePath] or the literal syntax [code]@"path"[/code]. Exporting a [NodePath] variable will give you a node selection widget in the properties panel of the editor, which can often be useful.
+		A [NodePath] is made up of a list of node names, a list of "subnode" (resource) names, and the name of a property in the final node or resource.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="NodePath">
 			<return type="NodePath">
@@ -70,14 +68,14 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return true if the node path is absolute (not relative).
+				Return [code]true[/code] if the node path is absolute (not relative).
 			</description>
 		</method>
 		<method name="is_empty">
 			<return type="bool">
 			</return>
 			<description>
-				Return true if the node path is empty.
+				Return [code]true[/code] if the node path is empty.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/OS.xml b/doc/classes/OS.xml
index edf8f507f0..c9c83bc0e0 100644
--- a/doc/classes/OS.xml
+++ b/doc/classes/OS.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="OS" inherits="Object" category="Core" version="3.1">
+<class name="OS" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Operating System functions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="alert">
 			<return type="void">
diff --git a/doc/classes/Object.xml b/doc/classes/Object.xml
index 76cbe5eebd..9c2a65ce5b 100644
--- a/doc/classes/Object.xml
+++ b/doc/classes/Object.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Object" category="Core" version="3.1">
+<class name="Object" category="Core" version="3.2">
 	<brief_description>
 		Base class for all non built-in types.
 	</brief_description>
@@ -13,8 +13,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_get" qualifiers="virtual">
 			<return type="Variant">
@@ -329,6 +327,14 @@
 			<description>
 			</description>
 		</method>
+		<method name="remove_meta">
+			<return type="void">
+			</return>
+			<argument index="0" name="name" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="set">
 			<return type="void">
 			</return>
@@ -346,7 +352,7 @@
 			<argument index="0" name="enable" type="bool">
 			</argument>
 			<description>
-				If set to true, signal emission is blocked.
+				If set to [code]true[/code], signal emission is blocked.
 			</description>
 		</method>
 		<method name="set_deferred">
@@ -375,7 +381,7 @@
 			<argument index="0" name="enable" type="bool">
 			</argument>
 			<description>
-				Define whether the object can translate strings (with calls to [method tr]). Default is true.
+				Define whether the object can translate strings (with calls to [method tr]). Default is [code]true[/code].
 			</description>
 		</method>
 		<method name="set_meta">
diff --git a/doc/classes/OccluderPolygon2D.xml b/doc/classes/OccluderPolygon2D.xml
index b8adc4c96f..f1d7d55cb9 100644
--- a/doc/classes/OccluderPolygon2D.xml
+++ b/doc/classes/OccluderPolygon2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="OccluderPolygon2D" inherits="Resource" category="Core" version="3.1">
+<class name="OccluderPolygon2D" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Defines a 2D polygon for LightOccluder2D.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/OmniLight.xml b/doc/classes/OmniLight.xml
index 8d67cb626b..408018fdcb 100644
--- a/doc/classes/OmniLight.xml
+++ b/doc/classes/OmniLight.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="OmniLight" inherits="Light" category="Core" version="3.1">
+<class name="OmniLight" inherits="Light" category="Core" version="3.2">
 	<brief_description>
 		Omnidirectional light, such as a light bulb or a candle.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/lights_and_shadows.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/OptionButton.xml b/doc/classes/OptionButton.xml
index 0f795b4bf8..51d2cbc867 100644
--- a/doc/classes/OptionButton.xml
+++ b/doc/classes/OptionButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="OptionButton" inherits="Button" category="Core" version="3.1">
+<class name="OptionButton" inherits="Button" category="Core" version="3.2">
 	<brief_description>
 		Button control that provides selectable options when pressed.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_icon_item">
 			<return type="void">
@@ -46,7 +44,7 @@
 			<return type="void">
 			</return>
 			<description>
-				Clear all the items in the [code]OptionButton[/code].
+				Clear all the items in the [OptionButton].
 			</description>
 		</method>
 		<method name="get_item_count" qualifiers="const">
diff --git a/doc/classes/PCKPacker.xml b/doc/classes/PCKPacker.xml
index 01985a9bb3..f3091a3e3f 100644
--- a/doc/classes/PCKPacker.xml
+++ b/doc/classes/PCKPacker.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PCKPacker" inherits="Reference" category="Core" version="3.1">
+<class name="PCKPacker" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_file">
 			<return type="int" enum="Error">
diff --git a/doc/classes/PHashTranslation.xml b/doc/classes/PHashTranslation.xml
index e5745375b0..7c771b6b04 100644
--- a/doc/classes/PHashTranslation.xml
+++ b/doc/classes/PHashTranslation.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PHashTranslation" inherits="Translation" category="Core" version="3.1">
+<class name="PHashTranslation" inherits="Translation" category="Core" version="3.2">
 	<brief_description>
 		Optimized translation.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="generate">
 			<return type="void">
diff --git a/doc/classes/PackedDataContainer.xml b/doc/classes/PackedDataContainer.xml
index e6dbe57925..f230953aac 100644
--- a/doc/classes/PackedDataContainer.xml
+++ b/doc/classes/PackedDataContainer.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PackedDataContainer" inherits="Resource" category="Core" version="3.1">
+<class name="PackedDataContainer" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="pack">
 			<return type="int" enum="Error">
diff --git a/doc/classes/PackedDataContainerRef.xml b/doc/classes/PackedDataContainerRef.xml
index 371fe5a5ac..8623ff7843 100644
--- a/doc/classes/PackedDataContainerRef.xml
+++ b/doc/classes/PackedDataContainerRef.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PackedDataContainerRef" inherits="Reference" category="Core" version="3.1">
+<class name="PackedDataContainerRef" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="size" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/PackedScene.xml b/doc/classes/PackedScene.xml
index 432ca4b23f..777e5221ed 100644
--- a/doc/classes/PackedScene.xml
+++ b/doc/classes/PackedScene.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PackedScene" inherits="Resource" category="Core" version="3.1">
+<class name="PackedScene" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		An abstraction of a serialized scene.
 	</brief_description>
@@ -29,8 +29,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="can_instance" qualifiers="const">
 			<return type="bool">
diff --git a/doc/classes/PacketPeer.xml b/doc/classes/PacketPeer.xml
index a4cf0c8029..5a54c7ba1c 100644
--- a/doc/classes/PacketPeer.xml
+++ b/doc/classes/PacketPeer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PacketPeer" inherits="Reference" category="Core" version="3.1">
+<class name="PacketPeer" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Abstraction and base class for packet-based protocols.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_available_packet_count" qualifiers="const">
 			<return type="int">
@@ -35,8 +33,11 @@
 		<method name="get_var">
 			<return type="Variant">
 			</return>
+			<argument index="0" name="allow_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Get a Variant.
+				Get a Variant. When [code]allow_objects[/code] (or [member allow_object_decoding]) is [code]true[/code] decoding objects is allowed.
+				[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
 			</description>
 		</method>
 		<method name="put_packet">
@@ -53,13 +54,18 @@
 			</return>
 			<argument index="0" name="var" type="Variant">
 			</argument>
+			<argument index="1" name="full_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Send a Variant as a packet.
+				Send a Variant as a packet. When [code]full_objects[/code] (or [member allow_object_decoding]) is [code]true[/code] encoding objects is allowed (and can potentially include code).
 			</description>
 		</method>
 	</methods>
 	<members>
 		<member name="allow_object_decoding" type="bool" setter="set_allow_object_decoding" getter="is_object_decoding_allowed">
+			Deprecated. Use [code]get_var[/code] and [code]put_var[/code] parameters instead.
+			If [code]true[/code] the PacketPeer will allow encoding and decoding of object via [method get_var] and [method put_var].
+			[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/PacketPeerStream.xml b/doc/classes/PacketPeerStream.xml
index 9e3195bb44..20e5e570ac 100644
--- a/doc/classes/PacketPeerStream.xml
+++ b/doc/classes/PacketPeerStream.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PacketPeerStream" inherits="PacketPeer" category="Core" version="3.1">
+<class name="PacketPeerStream" inherits="PacketPeer" category="Core" version="3.2">
 	<brief_description>
 		Wrapper to use a PacketPeer over a StreamPeer.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PacketPeerUDP.xml b/doc/classes/PacketPeerUDP.xml
index d4e3d17de6..5892eb17b7 100644
--- a/doc/classes/PacketPeerUDP.xml
+++ b/doc/classes/PacketPeerUDP.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PacketPeerUDP" inherits="PacketPeer" category="Core" version="3.1">
+<class name="PacketPeerUDP" inherits="PacketPeer" category="Core" version="3.2">
 	<brief_description>
 		UDP packet peer.
 	</brief_description>
@@ -8,14 +8,12 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="close">
 			<return type="void">
 			</return>
 			<description>
-				Close the UDP socket the [code]PacketPeerUDP[/code] is currently listening on.
+				Close the UDP socket the [PacketPeerUDP] is currently listening on.
 			</description>
 		</method>
 		<method name="get_packet_ip" qualifiers="const">
@@ -36,7 +34,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return whether this [code]PacketPeerUDP[/code] is listening.
+				Return whether this [PacketPeerUDP] is listening.
 			</description>
 		</method>
 		<method name="listen">
@@ -49,7 +47,7 @@
 			<argument index="2" name="recv_buf_size" type="int" default="65536">
 			</argument>
 			<description>
-				Make this [code]PacketPeerUDP[/code] listen on the "port" binding to "bind_address" with a buffer size "recv_buf_size".
+				Make this [PacketPeerUDP] listen on the "port" binding to "bind_address" with a buffer size "recv_buf_size".
 				If "bind_address" is set as "*" (default), the peer will listen on all available addresses (both IPv4 and IPv6).
 				If "bind_address" is set as "0.0.0.0" (for IPv4) or "::" (for IPv6), the peer will listen on all available addresses matching that IP type.
 				If "bind_address" is set to any valid address (e.g. "192.168.1.101", "::1", etc), the peer will only listen on the interface with that addresses (or fail if no interface with the given address exists).
diff --git a/doc/classes/Panel.xml b/doc/classes/Panel.xml
index 758925e969..c9c3f80e7b 100644
--- a/doc/classes/Panel.xml
+++ b/doc/classes/Panel.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Panel" inherits="Control" category="Core" version="3.1">
+<class name="Panel" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Provides an opaque background for [Control] children.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
@@ -17,9 +15,5 @@
 	<theme_items>
 		<theme_item name="panel" type="StyleBox">
 		</theme_item>
-		<theme_item name="panelf" type="StyleBox">
-		</theme_item>
-		<theme_item name="panelnc" type="StyleBox">
-		</theme_item>
 	</theme_items>
 </class>
diff --git a/doc/classes/PanelContainer.xml b/doc/classes/PanelContainer.xml
index f5c351fa21..64fae6d95c 100644
--- a/doc/classes/PanelContainer.xml
+++ b/doc/classes/PanelContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PanelContainer" inherits="Container" category="Core" version="3.1">
+<class name="PanelContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Panel container type.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/PanoramaSky.xml b/doc/classes/PanoramaSky.xml
index 402e65c573..30d15c030a 100644
--- a/doc/classes/PanoramaSky.xml
+++ b/doc/classes/PanoramaSky.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PanoramaSky" inherits="Sky" category="Core" version="3.1">
+<class name="PanoramaSky" inherits="Sky" category="Core" version="3.2">
 	<brief_description>
 		A type of [Sky] used to draw a background texture.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ParallaxBackground.xml b/doc/classes/ParallaxBackground.xml
index 81795df87f..6c9d5de945 100644
--- a/doc/classes/ParallaxBackground.xml
+++ b/doc/classes/ParallaxBackground.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ParallaxBackground" inherits="CanvasLayer" category="Core" version="3.1">
+<class name="ParallaxBackground" inherits="CanvasLayer" category="Core" version="3.2">
 	<brief_description>
 		A node used to create a parallax scrolling background.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ParallaxLayer.xml b/doc/classes/ParallaxLayer.xml
index e6ea166282..993f38c31a 100644
--- a/doc/classes/ParallaxLayer.xml
+++ b/doc/classes/ParallaxLayer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ParallaxLayer" inherits="Node2D" category="Core" version="3.1">
+<class name="ParallaxLayer" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		A parallax scrolling layer to be used with [ParallaxBackground].
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Particles.xml b/doc/classes/Particles.xml
index 5d80f32bc2..0023fce97d 100644
--- a/doc/classes/Particles.xml
+++ b/doc/classes/Particles.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Particles" inherits="GeometryInstance" category="Core" version="3.1">
+<class name="Particles" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 		3D particle emitter.
 	</brief_description>
 	<description>
-		3D particle node used to create a variety of particle systems and effects. [code]Particles[/code] features an emitter that generates some number of particles at a given rate.
+		3D particle node used to create a variety of particle systems and effects. [Particles] features an emitter that generates some number of particles at a given rate.
 		Use the [code]process_material[/code] property to add a [ParticlesMaterial] to configure particle appearance and behavior. Alternatively, you can add a [ShaderMaterial] which will be applied to all particles.
 	</description>
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/3d/vertex_animation/controlling_thousands_of_fish.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="capture_aabb" qualifiers="const">
 			<return type="AABB">
diff --git a/doc/classes/Particles2D.xml b/doc/classes/Particles2D.xml
index 53088e909e..de4877b639 100644
--- a/doc/classes/Particles2D.xml
+++ b/doc/classes/Particles2D.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Particles2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Particles2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		2D particle emitter.
 	</brief_description>
 	<description>
-		2D particle node used to create a variety of particle systems and effects. [code]Particles2D[/code] features an emitter that generates some number of particles at a given rate.
+		2D particle node used to create a variety of particle systems and effects. [Particles2D] features an emitter that generates some number of particles at a given rate.
 		Use the [code]process_material[/code] property to add a [ParticlesMaterial] to configure particle appearance and behavior. Alternatively, you can add a [ShaderMaterial] which will be applied to all particles.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/particle_systems_2d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="capture_rect" qualifiers="const">
 			<return type="Rect2">
diff --git a/doc/classes/ParticlesMaterial.xml b/doc/classes/ParticlesMaterial.xml
index 89913d9e0d..6ae5afeac5 100644
--- a/doc/classes/ParticlesMaterial.xml
+++ b/doc/classes/ParticlesMaterial.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ParticlesMaterial" inherits="Material" category="Core" version="3.1">
+<class name="ParticlesMaterial" inherits="Material" category="Core" version="3.2">
 	<brief_description>
 		Particle properties for [Particles] and [Particles2D] nodes.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Path.xml b/doc/classes/Path.xml
index 5ece747aaf..1b553dbc02 100644
--- a/doc/classes/Path.xml
+++ b/doc/classes/Path.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Path" inherits="Spatial" category="Core" version="3.1">
+<class name="Path" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Container for a [Curve3D].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Path2D.xml b/doc/classes/Path2D.xml
index 5e40fb6956..ce15b3eab2 100644
--- a/doc/classes/Path2D.xml
+++ b/doc/classes/Path2D.xml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Path2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Path2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Contains a [Curve2D] path for [PathFollow2D] nodes to follow.
 	</brief_description>
 	<description>
 		Can have [PathFollow2D] child-nodes moving along the [Curve2D]. See [PathFollow2D] for more information on this usage.
+		Note that the path is considered as relative to the moved nodes (children of [PathFollow2D]) - usually the curve should start with a zero vector (0, 0).
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PathFollow.xml b/doc/classes/PathFollow.xml
index da4782a7c3..ba27ca04eb 100644
--- a/doc/classes/PathFollow.xml
+++ b/doc/classes/PathFollow.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PathFollow" inherits="Spatial" category="Core" version="3.1">
+<class name="PathFollow" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Point sampler for a [Path].
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PathFollow2D.xml b/doc/classes/PathFollow2D.xml
index a31652b7f9..6f38b9f08d 100644
--- a/doc/classes/PathFollow2D.xml
+++ b/doc/classes/PathFollow2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PathFollow2D" inherits="Node2D" category="Core" version="3.1">
+<class name="PathFollow2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Point sampler for a [Path2D].
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Performance.xml b/doc/classes/Performance.xml
index 3b11d9e47f..3860511615 100644
--- a/doc/classes/Performance.xml
+++ b/doc/classes/Performance.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Performance" inherits="Object" category="Core" version="3.1">
+<class name="Performance" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Exposes performance related data.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_monitor" qualifiers="const">
 			<return type="float">
@@ -57,58 +55,60 @@
 			Number of resources currently used.
 		</constant>
 		<constant name="OBJECT_NODE_COUNT" value="10" enum="Monitor">
-			Number of nodes currently instanced. This also includes the root node, as well as any nodes not in the scene tree.
+			Number of nodes currently instanced in the scene tree. This also includes the root node.
 		</constant>
-		<constant name="RENDER_OBJECTS_IN_FRAME" value="11" enum="Monitor">
+		<constant name="OBJECT_ORPHAN_NODE_COUNT" value="11" enum="Monitor">
+		</constant>
+		<constant name="RENDER_OBJECTS_IN_FRAME" value="12" enum="Monitor">
 			3D objects drawn per frame.
 		</constant>
-		<constant name="RENDER_VERTICES_IN_FRAME" value="12" enum="Monitor">
+		<constant name="RENDER_VERTICES_IN_FRAME" value="13" enum="Monitor">
 			Vertices drawn per frame. 3D only.
 		</constant>
-		<constant name="RENDER_MATERIAL_CHANGES_IN_FRAME" value="13" enum="Monitor">
+		<constant name="RENDER_MATERIAL_CHANGES_IN_FRAME" value="14" enum="Monitor">
 			Material changes per frame. 3D only
 		</constant>
-		<constant name="RENDER_SHADER_CHANGES_IN_FRAME" value="14" enum="Monitor">
+		<constant name="RENDER_SHADER_CHANGES_IN_FRAME" value="15" enum="Monitor">
 			Shader changes per frame. 3D only.
 		</constant>
-		<constant name="RENDER_SURFACE_CHANGES_IN_FRAME" value="15" enum="Monitor">
+		<constant name="RENDER_SURFACE_CHANGES_IN_FRAME" value="16" enum="Monitor">
 			Render surface changes per frame. 3D only.
 		</constant>
-		<constant name="RENDER_DRAW_CALLS_IN_FRAME" value="16" enum="Monitor">
+		<constant name="RENDER_DRAW_CALLS_IN_FRAME" value="17" enum="Monitor">
 			Draw calls per frame. 3D only.
 		</constant>
-		<constant name="RENDER_VIDEO_MEM_USED" value="17" enum="Monitor">
+		<constant name="RENDER_VIDEO_MEM_USED" value="18" enum="Monitor">
 			Video memory used. Includes both texture and vertex memory.
 		</constant>
-		<constant name="RENDER_TEXTURE_MEM_USED" value="18" enum="Monitor">
+		<constant name="RENDER_TEXTURE_MEM_USED" value="19" enum="Monitor">
 			Texture memory used.
 		</constant>
-		<constant name="RENDER_VERTEX_MEM_USED" value="19" enum="Monitor">
+		<constant name="RENDER_VERTEX_MEM_USED" value="20" enum="Monitor">
 			Vertex memory used.
 		</constant>
-		<constant name="RENDER_USAGE_VIDEO_MEM_TOTAL" value="20" enum="Monitor">
+		<constant name="RENDER_USAGE_VIDEO_MEM_TOTAL" value="21" enum="Monitor">
 		</constant>
-		<constant name="PHYSICS_2D_ACTIVE_OBJECTS" value="21" enum="Monitor">
+		<constant name="PHYSICS_2D_ACTIVE_OBJECTS" value="22" enum="Monitor">
 			Number of active [RigidBody2D] nodes in the game.
 		</constant>
-		<constant name="PHYSICS_2D_COLLISION_PAIRS" value="22" enum="Monitor">
+		<constant name="PHYSICS_2D_COLLISION_PAIRS" value="23" enum="Monitor">
 			Number of collision pairs in the 2D physics engine.
 		</constant>
-		<constant name="PHYSICS_2D_ISLAND_COUNT" value="23" enum="Monitor">
+		<constant name="PHYSICS_2D_ISLAND_COUNT" value="24" enum="Monitor">
 			Number of islands in the 2D physics engine.
 		</constant>
-		<constant name="PHYSICS_3D_ACTIVE_OBJECTS" value="24" enum="Monitor">
+		<constant name="PHYSICS_3D_ACTIVE_OBJECTS" value="25" enum="Monitor">
 			Number of active [RigidBody] and [VehicleBody] nodes in the game.
 		</constant>
-		<constant name="PHYSICS_3D_COLLISION_PAIRS" value="25" enum="Monitor">
+		<constant name="PHYSICS_3D_COLLISION_PAIRS" value="26" enum="Monitor">
 			Number of collision pairs in the 3D physics engine.
 		</constant>
-		<constant name="PHYSICS_3D_ISLAND_COUNT" value="26" enum="Monitor">
+		<constant name="PHYSICS_3D_ISLAND_COUNT" value="27" enum="Monitor">
 			Number of islands in the 3D physics engine.
 		</constant>
-		<constant name="AUDIO_OUTPUT_LATENCY" value="27" enum="Monitor">
+		<constant name="AUDIO_OUTPUT_LATENCY" value="28" enum="Monitor">
 		</constant>
-		<constant name="MONITOR_MAX" value="28" enum="Monitor">
+		<constant name="MONITOR_MAX" value="29" enum="Monitor">
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/PhysicalBone.xml b/doc/classes/PhysicalBone.xml
index 5eb4550e93..bf379afab8 100644
--- a/doc/classes/PhysicalBone.xml
+++ b/doc/classes/PhysicalBone.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicalBone" inherits="PhysicsBody" category="Core" version="3.1">
+<class name="PhysicalBone" inherits="PhysicsBody" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_bone_id" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/Physics2DDirectBodyState.xml b/doc/classes/Physics2DDirectBodyState.xml
index 5b320a051f..1fd578ecd8 100644
--- a/doc/classes/Physics2DDirectBodyState.xml
+++ b/doc/classes/Physics2DDirectBodyState.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DDirectBodyState" inherits="Object" category="Core" version="3.1">
+<class name="Physics2DDirectBodyState" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Direct access object to a physics body in the [Physics2DServer].
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/ray-casting.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_central_force">
 			<return type="void">
diff --git a/doc/classes/Physics2DDirectBodyStateSW.xml b/doc/classes/Physics2DDirectBodyStateSW.xml
index cb1e9239b3..8aeea560c3 100644
--- a/doc/classes/Physics2DDirectBodyStateSW.xml
+++ b/doc/classes/Physics2DDirectBodyStateSW.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DDirectBodyStateSW" inherits="Physics2DDirectBodyState" category="Core" version="3.1">
+<class name="Physics2DDirectBodyStateSW" inherits="Physics2DDirectBodyState" category="Core" version="3.2">
 	<brief_description>
 		Software implementation of [Physics2DDirectBodyState].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Physics2DDirectSpaceState.xml b/doc/classes/Physics2DDirectSpaceState.xml
index 1bffea0c09..040d7d05c3 100644
--- a/doc/classes/Physics2DDirectSpaceState.xml
+++ b/doc/classes/Physics2DDirectSpaceState.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DDirectSpaceState" inherits="Object" category="Core" version="3.1">
+<class name="Physics2DDirectSpaceState" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Direct access object to a space in the [Physics2DServer].
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/ray-casting.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="cast_motion">
 			<return type="Array">
diff --git a/doc/classes/Physics2DServer.xml b/doc/classes/Physics2DServer.xml
index 341457a2b3..172420e4ca 100644
--- a/doc/classes/Physics2DServer.xml
+++ b/doc/classes/Physics2DServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DServer" inherits="Object" category="Core" version="3.1">
+<class name="Physics2DServer" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Physics 2D Server.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="area_add_shape">
 			<return type="void">
@@ -20,6 +18,8 @@
 			</argument>
 			<argument index="2" name="transform" type="Transform2D" default="Transform2D( 1, 0, 0, 1, 0, 0 )">
 			</argument>
+			<argument index="3" name="disabled" type="bool" default="false">
+			</argument>
 			<description>
 				Adds a shape to the area, along with a transform matrix. Shapes are usually referenced by their index, so you should track which shape has a given index.
 			</description>
@@ -253,7 +253,7 @@
 			</argument>
 			<argument index="1" name="shape_idx" type="int">
 			</argument>
-			<argument index="2" name="disable" type="bool">
+			<argument index="2" name="disabled" type="bool">
 			</argument>
 			<description>
 				Disables a given shape in an area.
@@ -348,6 +348,8 @@
 			</argument>
 			<argument index="2" name="transform" type="Transform2D" default="Transform2D( 1, 0, 0, 1, 0, 0 )">
 			</argument>
+			<argument index="3" name="disabled" type="bool" default="false">
+			</argument>
 			<description>
 				Adds a shape to the body, along with a transform matrix. Shapes are usually referenced by their index, so you should track which shape has a given index.
 			</description>
@@ -748,7 +750,7 @@
 			</argument>
 			<argument index="1" name="shape_idx" type="int">
 			</argument>
-			<argument index="2" name="disable" type="bool">
+			<argument index="2" name="disabled" type="bool">
 			</argument>
 			<description>
 				Disables shape in body if [code]disable[/code] is [code]true[/code].
diff --git a/doc/classes/Physics2DServerSW.xml b/doc/classes/Physics2DServerSW.xml
index 49157bd94b..e478a33e2c 100644
--- a/doc/classes/Physics2DServerSW.xml
+++ b/doc/classes/Physics2DServerSW.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DServerSW" inherits="Physics2DServer" category="Core" version="3.1">
+<class name="Physics2DServerSW" inherits="Physics2DServer" category="Core" version="3.2">
 	<brief_description>
 		Software implementation of [Physics2DServer].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Physics2DShapeQueryParameters.xml b/doc/classes/Physics2DShapeQueryParameters.xml
index f9e0c5e3de..43d9b71c94 100644
--- a/doc/classes/Physics2DShapeQueryParameters.xml
+++ b/doc/classes/Physics2DShapeQueryParameters.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DShapeQueryParameters" inherits="Reference" category="Core" version="3.1">
+<class name="Physics2DShapeQueryParameters" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Parameters to be sent to a 2D shape physics query.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="set_shape">
 			<return type="void">
diff --git a/doc/classes/Physics2DShapeQueryResult.xml b/doc/classes/Physics2DShapeQueryResult.xml
index 52e7294e24..dd38b488f5 100644
--- a/doc/classes/Physics2DShapeQueryResult.xml
+++ b/doc/classes/Physics2DShapeQueryResult.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DShapeQueryResult" inherits="Reference" category="Core" version="3.1">
+<class name="Physics2DShapeQueryResult" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_result_count" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/Physics2DTestMotionResult.xml b/doc/classes/Physics2DTestMotionResult.xml
index 3b864433f0..a0f8a1ca4c 100644
--- a/doc/classes/Physics2DTestMotionResult.xml
+++ b/doc/classes/Physics2DTestMotionResult.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Physics2DTestMotionResult" inherits="Reference" category="Core" version="3.1">
+<class name="Physics2DTestMotionResult" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PhysicsBody.xml b/doc/classes/PhysicsBody.xml
index 2658732f84..4d94c57ad1 100644
--- a/doc/classes/PhysicsBody.xml
+++ b/doc/classes/PhysicsBody.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsBody" inherits="CollisionObject" category="Core" version="3.1">
+<class name="PhysicsBody" inherits="CollisionObject" category="Core" version="3.2">
 	<brief_description>
 		Base class for all objects affected by physics in 3D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_collision_exception_with">
 			<return type="void">
diff --git a/doc/classes/PhysicsBody2D.xml b/doc/classes/PhysicsBody2D.xml
index f848b6df70..faa992ef7a 100644
--- a/doc/classes/PhysicsBody2D.xml
+++ b/doc/classes/PhysicsBody2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsBody2D" inherits="CollisionObject2D" category="Core" version="3.1">
+<class name="PhysicsBody2D" inherits="CollisionObject2D" category="Core" version="3.2">
 	<brief_description>
 		Base class for all objects affected by physics in 2D space.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_collision_exception_with">
 			<return type="void">
diff --git a/doc/classes/PhysicsDirectBodyState.xml b/doc/classes/PhysicsDirectBodyState.xml
index 10b5199128..e556e8037a 100644
--- a/doc/classes/PhysicsDirectBodyState.xml
+++ b/doc/classes/PhysicsDirectBodyState.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsDirectBodyState" inherits="Object" category="Core" version="3.1">
+<class name="PhysicsDirectBodyState" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Direct access object to a physics body in the [PhysicsServer].
 	</brief_description>
@@ -8,9 +8,7 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
-	<methods>(
+	<methods>
 		<method name="add_central_force">
 			<return type="void">
 			</return>
diff --git a/doc/classes/PhysicsDirectSpaceState.xml b/doc/classes/PhysicsDirectSpaceState.xml
index 118010b3cf..1a3324bf0e 100644
--- a/doc/classes/PhysicsDirectSpaceState.xml
+++ b/doc/classes/PhysicsDirectSpaceState.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsDirectSpaceState" inherits="Object" category="Core" version="3.1">
+<class name="PhysicsDirectSpaceState" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Direct access object to a space in the [PhysicsServer].
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/ray-casting.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="cast_motion">
 			<return type="Array">
diff --git a/doc/classes/PhysicsMaterial.xml b/doc/classes/PhysicsMaterial.xml
index 3eebcc57a1..b507b4f9f5 100644
--- a/doc/classes/PhysicsMaterial.xml
+++ b/doc/classes/PhysicsMaterial.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsMaterial" inherits="Resource" category="Core" version="3.1">
+<class name="PhysicsMaterial" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A material for physics properties.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PhysicsServer.xml b/doc/classes/PhysicsServer.xml
index b797e6ecf7..78a6ed8ac0 100644
--- a/doc/classes/PhysicsServer.xml
+++ b/doc/classes/PhysicsServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsServer" inherits="Object" category="Core" version="3.1">
+<class name="PhysicsServer" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Server interface for low level physics access.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="area_add_shape">
 			<return type="void">
@@ -20,6 +18,8 @@
 			</argument>
 			<argument index="2" name="transform" type="Transform" default="Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 )">
 			</argument>
+			<argument index="3" name="disabled" type="bool" default="false">
+			</argument>
 			<description>
 				Adds a shape to the area, along with a transform matrix. Shapes are usually referenced by their index, so you should track which shape has a given index.
 			</description>
@@ -248,6 +248,18 @@
 				Substitutes a given area shape by another. The old shape is selected by its index, the new one by its [RID].
 			</description>
 		</method>
+		<method name="area_set_shape_disabled">
+			<return type="void">
+			</return>
+			<argument index="0" name="area" type="RID">
+			</argument>
+			<argument index="1" name="shape_idx" type="int">
+			</argument>
+			<argument index="2" name="disabled" type="bool">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="area_set_shape_transform">
 			<return type="void">
 			</return>
@@ -336,6 +348,8 @@
 			</argument>
 			<argument index="2" name="transform" type="Transform" default="Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 )">
 			</argument>
+			<argument index="3" name="disabled" type="bool" default="false">
+			</argument>
 			<description>
 				Adds a shape to the body, along with a transform matrix. Shapes are usually referenced by their index, so you should track which shape has a given index.
 			</description>
@@ -752,6 +766,18 @@
 				Substitutes a given body shape by another. The old shape is selected by its index, the new one by its [RID].
 			</description>
 		</method>
+		<method name="body_set_shape_disabled">
+			<return type="void">
+			</return>
+			<argument index="0" name="body" type="RID">
+			</argument>
+			<argument index="1" name="shape_idx" type="int">
+			</argument>
+			<argument index="2" name="disabled" type="bool">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="body_set_shape_transform">
 			<return type="void">
 			</return>
diff --git a/doc/classes/PhysicsShapeQueryParameters.xml b/doc/classes/PhysicsShapeQueryParameters.xml
index 7cca231ad2..c1f8b48d73 100644
--- a/doc/classes/PhysicsShapeQueryParameters.xml
+++ b/doc/classes/PhysicsShapeQueryParameters.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsShapeQueryParameters" inherits="Reference" category="Core" version="3.1">
+<class name="PhysicsShapeQueryParameters" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="set_shape">
 			<return type="void">
diff --git a/doc/classes/PhysicsShapeQueryResult.xml b/doc/classes/PhysicsShapeQueryResult.xml
index 080d7389b7..92a4393979 100644
--- a/doc/classes/PhysicsShapeQueryResult.xml
+++ b/doc/classes/PhysicsShapeQueryResult.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PhysicsShapeQueryResult" inherits="Reference" category="Core" version="3.1">
+<class name="PhysicsShapeQueryResult" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Result of a shape query in Physics2DServer.
 	</brief_description>
@@ -7,8 +7,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_result_count" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/PinJoint.xml b/doc/classes/PinJoint.xml
index 470c22cd4c..4546377171 100644
--- a/doc/classes/PinJoint.xml
+++ b/doc/classes/PinJoint.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PinJoint" inherits="Joint" category="Core" version="3.1">
+<class name="PinJoint" inherits="Joint" category="Core" version="3.2">
 	<brief_description>
 		Pin Joint for 3D Shapes.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PinJoint2D.xml b/doc/classes/PinJoint2D.xml
index 42708151ec..4a11ce30e1 100644
--- a/doc/classes/PinJoint2D.xml
+++ b/doc/classes/PinJoint2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PinJoint2D" inherits="Joint2D" category="Core" version="3.1">
+<class name="PinJoint2D" inherits="Joint2D" category="Core" version="3.2">
 	<brief_description>
 		Pin Joint for 2D Shapes.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Plane.xml b/doc/classes/Plane.xml
index a57659abda..a5e5c7022f 100644
--- a/doc/classes/Plane.xml
+++ b/doc/classes/Plane.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Plane" category="Built-In Types" version="3.1">
+<class name="Plane" category="Built-In Types" version="3.2">
 	<brief_description>
 		Plane in hessian form.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/math/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Plane">
 			<return type="Plane">
@@ -82,7 +80,7 @@
 			<argument index="1" name="epsilon" type="float" default="0.00001">
 			</argument>
 			<description>
-				Returns true if "point" is inside the plane (by a very minimum threshold).
+				Returns [code]true[/code] if "point" is inside the plane (by a very minimum threshold).
 			</description>
 		</method>
 		<method name="intersect_3">
@@ -124,7 +122,7 @@
 			<argument index="0" name="point" type="Vector3">
 			</argument>
 			<description>
-				Returns true if "point" is located above the plane.
+				Returns [code]true[/code] if "point" is located above the plane.
 			</description>
 		</method>
 		<method name="normalized">
diff --git a/doc/classes/PlaneMesh.xml b/doc/classes/PlaneMesh.xml
index fc293ab4df..a8927f8479 100644
--- a/doc/classes/PlaneMesh.xml
+++ b/doc/classes/PlaneMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PlaneMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="PlaneMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Class representing a planar [PrimitiveMesh].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/PlaneShape.xml b/doc/classes/PlaneShape.xml
index bc3faf7c01..83d8b09280 100644
--- a/doc/classes/PlaneShape.xml
+++ b/doc/classes/PlaneShape.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PlaneShape" inherits="Shape" category="Core" version="3.1">
+<class name="PlaneShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Polygon2D.xml b/doc/classes/Polygon2D.xml
index 31ee0a9490..7098f5f071 100644
--- a/doc/classes/Polygon2D.xml
+++ b/doc/classes/Polygon2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Polygon2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Polygon2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		A 2D polygon.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_bone">
 			<return type="void">
diff --git a/doc/classes/PolygonPathFinder.xml b/doc/classes/PolygonPathFinder.xml
index e4a4d9b976..7286857b51 100644
--- a/doc/classes/PolygonPathFinder.xml
+++ b/doc/classes/PolygonPathFinder.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PolygonPathFinder" inherits="Resource" category="Core" version="3.1">
+<class name="PolygonPathFinder" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="find_path">
 			<return type="PoolVector2Array">
diff --git a/doc/classes/PoolByteArray.xml b/doc/classes/PoolByteArray.xml
index 83a138be97..f46cb243d7 100644
--- a/doc/classes/PoolByteArray.xml
+++ b/doc/classes/PoolByteArray.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolByteArray" category="Built-In Types" version="3.1">
+<class name="PoolByteArray" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of bytes.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolByteArray">
 			<return type="PoolByteArray">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolByteArray[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolByteArray]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolByteArray">
 			</argument>
 			<description>
-				Append a [code]PoolByteArray[/code] at the end of this array.
+				Append a [PoolByteArray] at the end of this array.
 			</description>
 		</method>
 		<method name="compress">
@@ -40,7 +38,7 @@
 			<argument index="0" name="compression_mode" type="int" default="0">
 			</argument>
 			<description>
-				Returns a new [code]PoolByteArray[/code] with the data compressed. Set the compression mode using one of [enum File.CompressionMode]'s constants.
+				Returns a new [PoolByteArray] with the data compressed. Set the compression mode using one of [enum File.CompressionMode]'s constants.
 			</description>
 		</method>
 		<method name="decompress">
@@ -51,7 +49,7 @@
 			<argument index="1" name="compression_mode" type="int" default="0">
 			</argument>
 			<description>
-				Returns a new [code]PoolByteArray[/code] with the data decompressed. Set [code]buffer_size[/code] to the size of the uncompressed data. Set the compression mode using one of [enum File.CompressionMode]'s constants.
+				Returns a new [PoolByteArray] with the data decompressed. Set [code]buffer_size[/code] to the size of the uncompressed data. Set the compression mode using one of [enum File.CompressionMode]'s constants.
 			</description>
 		</method>
 		<method name="get_string_from_ascii">
@@ -114,6 +112,13 @@
 				Change the byte at the given index.
 			</description>
 		</method>
+		<method name="sha256_string">
+			<return type="String">
+			</return>
+			<description>
+				Return SHA256 string of the PoolByteArray.
+			</description>
+		</method>
 		<method name="size">
 			<return type="int">
 			</return>
@@ -129,7 +134,7 @@
 			<argument index="1" name="to" type="int">
 			</argument>
 			<description>
-				Returns the slice of the [code]PoolByteArray[/code] between indices (inclusive) as a new [code]PoolByteArray[/code]. Any negative index is considered to be from the end of the array.
+				Returns the slice of the [PoolByteArray] between indices (inclusive) as a new [PoolByteArray]. Any negative index is considered to be from the end of the array.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/PoolColorArray.xml b/doc/classes/PoolColorArray.xml
index 9fdd1090ae..d16029a8d7 100644
--- a/doc/classes/PoolColorArray.xml
+++ b/doc/classes/PoolColorArray.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolColorArray" category="Built-In Types" version="3.1">
+<class name="PoolColorArray" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of [Color].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolColorArray">
 			<return type="PoolColorArray">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolColorArray[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolColorArray]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolColorArray">
 			</argument>
 			<description>
-				Append a [code]PoolColorArray[/code] at the end of this array.
+				Append a [PoolColorArray] at the end of this array.
 			</description>
 		</method>
 		<method name="insert">
diff --git a/doc/classes/PoolIntArray.xml b/doc/classes/PoolIntArray.xml
index a8808284b5..83d73c8a24 100644
--- a/doc/classes/PoolIntArray.xml
+++ b/doc/classes/PoolIntArray.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolIntArray" category="Built-In Types" version="3.1">
+<class name="PoolIntArray" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of integers ([int]).
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolIntArray">
 			<return type="PoolIntArray">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolIntArray[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolIntArray]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolIntArray">
 			</argument>
 			<description>
-				Append a [code]PoolIntArray[/code] at the end of this array.
+				Append a [PoolIntArray] at the end of this array.
 			</description>
 		</method>
 		<method name="insert">
diff --git a/doc/classes/PoolRealArray.xml b/doc/classes/PoolRealArray.xml
index 3eb485ce12..e1da99519c 100644
--- a/doc/classes/PoolRealArray.xml
+++ b/doc/classes/PoolRealArray.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolRealArray" category="Built-In Types" version="3.1">
+<class name="PoolRealArray" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of reals ([float]).
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolRealArray">
 			<return type="PoolRealArray">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolRealArray[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolRealArray]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolRealArray">
 			</argument>
 			<description>
-				Append a [code]PoolRealArray[/code] at the end of this array.
+				Append a [PoolRealArray] at the end of this array.
 			</description>
 		</method>
 		<method name="insert">
diff --git a/doc/classes/PoolStringArray.xml b/doc/classes/PoolStringArray.xml
index a02c6c1bdb..6ef4222996 100644
--- a/doc/classes/PoolStringArray.xml
+++ b/doc/classes/PoolStringArray.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolStringArray" category="Built-In Types" version="3.1">
+<class name="PoolStringArray" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of [String].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolStringArray">
 			<return type="PoolStringArray">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolStringArray[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolStringArray]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolStringArray">
 			</argument>
 			<description>
-				Append a [code]PoolStringArray[/code] at the end of this array.
+				Append a [PoolStringArray] at the end of this array.
 			</description>
 		</method>
 		<method name="insert">
diff --git a/doc/classes/PoolVector2Array.xml b/doc/classes/PoolVector2Array.xml
index 39d89c2ebd..50ded06b90 100644
--- a/doc/classes/PoolVector2Array.xml
+++ b/doc/classes/PoolVector2Array.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolVector2Array" category="Built-In Types" version="3.1">
+<class name="PoolVector2Array" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of [Vector2].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolVector2Array">
 			<return type="PoolVector2Array">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolVector2Array[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolVector2Array]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolVector2Array">
 			</argument>
 			<description>
-				Append a [code]PoolVector2Array[/code] at the end of this array.
+				Append a [PoolVector2Array] at the end of this array.
 			</description>
 		</method>
 		<method name="insert">
diff --git a/doc/classes/PoolVector3Array.xml b/doc/classes/PoolVector3Array.xml
index 3f77e737f6..69b4e54692 100644
--- a/doc/classes/PoolVector3Array.xml
+++ b/doc/classes/PoolVector3Array.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PoolVector3Array" category="Built-In Types" version="3.1">
+<class name="PoolVector3Array" category="Built-In Types" version="3.2">
 	<brief_description>
 		A pooled [Array] of [Vector3].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="PoolVector3Array">
 			<return type="PoolVector3Array">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="Array">
 			</argument>
 			<description>
-				Construct a new [code]PoolVector3Array[/code]. Optionally, you can pass in a generic [Array] that will be converted.
+				Construct a new [PoolVector3Array]. Optionally, you can pass in a generic [Array] that will be converted.
 			</description>
 		</method>
 		<method name="append">
@@ -31,7 +29,7 @@
 			<argument index="0" name="array" type="PoolVector3Array">
 			</argument>
 			<description>
-				Append a [code]PoolVector3Array[/code] at the end of this array.
+				Append a [PoolVector3Array] at the end of this array.
 			</description>
 		</method>
 		<method name="insert">
diff --git a/doc/classes/Popup.xml b/doc/classes/Popup.xml
index be6e8b6ef1..c3256f2f5b 100644
--- a/doc/classes/Popup.xml
+++ b/doc/classes/Popup.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Popup" inherits="Control" category="Core" version="3.1">
+<class name="Popup" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Base container control for popups and dialogs.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="popup">
 			<return type="void">
diff --git a/doc/classes/PopupDialog.xml b/doc/classes/PopupDialog.xml
index 4f15fb4b05..b510208ae2 100644
--- a/doc/classes/PopupDialog.xml
+++ b/doc/classes/PopupDialog.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PopupDialog" inherits="Popup" category="Core" version="3.1">
+<class name="PopupDialog" inherits="Popup" category="Core" version="3.2">
 	<brief_description>
 		Base class for Popup Dialogs.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/PopupMenu.xml b/doc/classes/PopupMenu.xml
index ea696e624a..4924175b6e 100644
--- a/doc/classes/PopupMenu.xml
+++ b/doc/classes/PopupMenu.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PopupMenu" inherits="Popup" category="Core" version="3.1">
+<class name="PopupMenu" inherits="Popup" category="Core" version="3.2">
 	<brief_description>
 		PopupMenu displays a list of options.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_check_item">
 			<return type="void">
diff --git a/doc/classes/PopupPanel.xml b/doc/classes/PopupPanel.xml
index 694c29efda..bed4d97112 100644
--- a/doc/classes/PopupPanel.xml
+++ b/doc/classes/PopupPanel.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PopupPanel" inherits="Popup" category="Core" version="3.1">
+<class name="PopupPanel" inherits="Popup" category="Core" version="3.2">
 	<brief_description>
 		Class for displaying popups with a panel background.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Position2D.xml b/doc/classes/Position2D.xml
index 6c26bf412c..034e35d9d7 100644
--- a/doc/classes/Position2D.xml
+++ b/doc/classes/Position2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Position2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Position2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Generic 2D Position hint for editing.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Position3D.xml b/doc/classes/Position3D.xml
index 7c0875cc0c..247f1fb6a3 100644
--- a/doc/classes/Position3D.xml
+++ b/doc/classes/Position3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Position3D" inherits="Spatial" category="Core" version="3.1">
+<class name="Position3D" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Generic 3D Position hint for editing.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/PrimitiveMesh.xml b/doc/classes/PrimitiveMesh.xml
index 0f0511258b..c9c3643edb 100644
--- a/doc/classes/PrimitiveMesh.xml
+++ b/doc/classes/PrimitiveMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PrimitiveMesh" inherits="Mesh" category="Core" version="3.1">
+<class name="PrimitiveMesh" inherits="Mesh" category="Core" version="3.2">
 	<brief_description>
 		Base class for all primitive meshes. Handles applying a [Material] to a primitive mesh.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_mesh_arrays" qualifiers="const">
 			<return type="Array">
diff --git a/doc/classes/PrismMesh.xml b/doc/classes/PrismMesh.xml
index 11815d299b..0d0f330647 100644
--- a/doc/classes/PrismMesh.xml
+++ b/doc/classes/PrismMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PrismMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="PrismMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Class representing a prism-shaped [PrimitiveMesh].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ProceduralSky.xml b/doc/classes/ProceduralSky.xml
index 090b626433..97ad1efa93 100644
--- a/doc/classes/ProceduralSky.xml
+++ b/doc/classes/ProceduralSky.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ProceduralSky" inherits="Sky" category="Core" version="3.1">
+<class name="ProceduralSky" inherits="Sky" category="Core" version="3.2">
 	<brief_description>
 		Type of [Sky] that is generated procedurally based on user input parameters.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ProgressBar.xml b/doc/classes/ProgressBar.xml
index 8d6e77751d..98d7e5c128 100644
--- a/doc/classes/ProgressBar.xml
+++ b/doc/classes/ProgressBar.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ProgressBar" inherits="Range" category="Core" version="3.1">
+<class name="ProgressBar" inherits="Range" category="Core" version="3.2">
 	<brief_description>
 		General purpose progress bar.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ProjectSettings.xml b/doc/classes/ProjectSettings.xml
index 77a695d070..46a4a70a9b 100644
--- a/doc/classes/ProjectSettings.xml
+++ b/doc/classes/ProjectSettings.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ProjectSettings" inherits="Object" category="Core" version="3.1">
+<class name="ProjectSettings" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Contains global variables accessible from everywhere.
 	</brief_description>
 	<description>
-		Contains global variables accessible from everywhere. Use "ProjectSettings.get_setting(variable)", "ProjectSettings.set_setting(variable,value)" or "ProjectSettings.has_setting(variable)" to access them. Variables stored in project.godot are also loaded into ProjectSettings, making this object very useful for reading custom game configuration options.
+		Contains global variables accessible from everywhere. Use [method get_setting], [method set_setting] or [method has_setting] to access them. Variables stored in [code]project.godot[/code] are also loaded into ProjectSettings, making this object very useful for reading custom game configuration options.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_property_info">
 			<return type="void">
@@ -17,7 +15,7 @@
 			<argument index="0" name="hint" type="Dictionary">
 			</argument>
 			<description>
-				Add a custom property info to a property. The dictionary must contain: name:[String](the name of the property) and type:[int](see TYPE_* in [@GlobalScope]), and optionally hint:[int](see PROPERTY_HINT_* in [@GlobalScope]), hint_string:[String].
+				Adds a custom property info to a property. The dictionary must contain: name:[String](the property's name) and type:[int](see TYPE_* in [@GlobalScope]), and optionally hint:[int](see PROPERTY_HINT_* in [@GlobalScope]), hint_string:[String].
 				Example:
 				[codeblock]
 				ProjectSettings.set("category/property_name", 0)
@@ -39,7 +37,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Clear the whole configuration (not recommended, may break things).
+				Clears the whole configuration (not recommended, may break things).
 			</description>
 		</method>
 		<method name="get_order" qualifiers="const">
@@ -48,7 +46,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Return the order of a configuration value (influences when saved to the config file).
+				Returns the order of a configuration value (influences when saved to the config file).
 			</description>
 		</method>
 		<method name="get_setting" qualifiers="const">
@@ -65,7 +63,7 @@
 			<argument index="0" name="path" type="String">
 			</argument>
 			<description>
-				Convert a localized path (res://) to a full native OS path.
+				Converts a localized path ([code]res://[/code]) to a full native OS path.
 			</description>
 		</method>
 		<method name="has_setting" qualifiers="const">
@@ -74,7 +72,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Return true if a configuration value is present.
+				Returns [code]true[/code] if a configuration value is present.
 			</description>
 		</method>
 		<method name="load_resource_pack">
@@ -83,7 +81,7 @@
 			<argument index="0" name="pack" type="String">
 			</argument>
 			<description>
-				Loads the contents of the .pck or .zip file specified by [code]pack[/code] into the resource filesystem (res://). Returns true on success.
+				Loads the contents of the .pck or .zip file specified by [code]pack[/code] into the resource filesystem ([code]res://[/code]). Returns [code]true[/code] on success.
 				Note: If a file from [code]pack[/code] shares the same path as a file already in the resource filesystem, any attempts to load that file will use the file from [code]pack[/code].
 			</description>
 		</method>
@@ -93,7 +91,7 @@
 			<argument index="0" name="path" type="String">
 			</argument>
 			<description>
-				Convert a path to a localized path (res:// path).
+				Convert a path to a localized path ([code]res://[/code] path).
 			</description>
 		</method>
 		<method name="property_can_revert">
@@ -102,7 +100,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Returns true if the specified property exists and its initial value differs from the current value.
+				Returns [code]true[/code] if the specified property exists and its initial value differs from the current value.
 			</description>
 		</method>
 		<method name="property_get_revert">
@@ -111,14 +109,14 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Returns the initial value of the specified property. Returns null if the property does not exist.
+				Returns the specified property's initial value. Returns [code]null[/code] if the property does not exist.
 			</description>
 		</method>
 		<method name="save">
 			<return type="int" enum="Error">
 			</return>
 			<description>
-				Saves the configuration to the project.godot file.
+				Saves the configuration to the [code]project.godot[/code] file.
 			</description>
 		</method>
 		<method name="save_custom">
@@ -148,7 +146,7 @@
 			<argument index="1" name="position" type="int">
 			</argument>
 			<description>
-				Set the order of a configuration value (influences when saved to the config file).
+				Sets the order of a configuration value (influences when saved to the config file).
 			</description>
 		</method>
 		<method name="set_setting">
@@ -170,60 +168,64 @@
 			Background color for the boot splash.
 		</member>
 		<member name="application/boot_splash/fullsize" type="bool" setter="" getter="">
-			Scale the boot splash image to the full window length when engine starts (will leave it as default pixel size otherwise).
+			If [code]true[/code], scale the boot splash image to the full window length when engine starts. If [code]false[/code], the engine will leave it at the default pixel size.
 		</member>
 		<member name="application/boot_splash/image" type="String" setter="" getter="">
-			Path to an image used for boot splash.
+			Path to an image used as the boot splash.
 		</member>
 		<member name="application/config/custom_user_dir_name" type="String" setter="" getter="">
-			This user directory is used for storing persistent data ([code]user://[/code] filesystem). By default (no custom name defined), [code]user://[/code] resolves to a project-specific folder in Godot's own configuration folder (see [method OS.get_user_data_dir]). If a custom directory name is defined, this name will be used instead and appended to the system-specific user data directory (same parent folder as the Godot configuration folder documented in [method OS.get_user_data_dir]).
+			This user directory is used for storing persistent data ([code]user://[/code] filesystem). If left empty, [code]user://[/code] resolves to a project-specific folder in Godot's own configuration folder (see [method OS.get_user_data_dir]). If a custom directory name is defined, this name will be used instead and appended to the system-specific user data directory (same parent folder as the Godot configuration folder documented in [method OS.get_user_data_dir]).
 			The [member application/config/use_custom_user_dir] setting must be enabled for this to take effect.
 		</member>
 		<member name="application/config/icon" type="String" setter="" getter="">
-			Icon used for the project, set when project loads. Exporters will use this icon when possible to.
+			Icon used for the project, set when project loads. Exporters will also use this icon when possible.
 		</member>
 		<member name="application/config/name" type="String" setter="" getter="">
-			Name of the project. It is used from both project manager and by the exporters. Overriding this as name.locale allows setting it in multiple languages.
+			The project's name. It is used both by the Project Manager and by exporters. The project name can be translated by translating its value in localization files.
 		</member>
 		<member name="application/config/project_settings_override" type="String" setter="" getter="">
 			Specifies a file to override project settings. For example: [code]user://custom_settings.cfg[/code].
 		</member>
 		<member name="application/config/use_custom_user_dir" type="bool" setter="" getter="">
-			Allow the project to save to its own custom user dir (see [member application/config/custom_user_dir_name]). This setting only works for desktop platforms. A name must be set in the [member application/config/custom_user_dir_name] setting for this to take effect.
+			If [code]true[/code], the project will save user data to its own user directory (see [member application/config/custom_user_dir_name]). This setting is only effective on desktop platforms. A name must be set in the [member application/config/custom_user_dir_name] setting for this to take effect. If [code]false[/code], the project will save user data to [code](OS user data directory)/Godot/app_userdata/(project name)[/code].
 		</member>
 		<member name="application/run/disable_stderr" type="bool" setter="" getter="">
-			Disable printing to stderr on exported build.
+			If [code]true[/code], disables printing to standard error in an exported build.
 		</member>
 		<member name="application/run/disable_stdout" type="bool" setter="" getter="">
-			Disable printing to stdout on exported build.
+			If [code]true[/code], disables printing to standard output in an exported build.
 		</member>
 		<member name="application/run/frame_delay_msec" type="int" setter="" getter="">
-			Force a delay between frames in the main loop. This may be useful if you plan to disable vsync.
+			Forces a delay between frames in the main loop (in milliseconds). This may be useful if you plan to disable vertical synchronization.
 		</member>
 		<member name="application/run/low_processor_mode" type="bool" setter="" getter="">
-			Turn on low processor mode. This setting only works on desktops. The screen is not redrawn if nothing changes visually. This is meant for writing applications and editors, but is pretty useless (and can hurt performance) on games.
+			If [code]true[/code], enables low-processor usage mode. This setting only works on desktop platforms. The screen is not redrawn if nothing changes visually. This is meant for writing applications and editors, but is pretty useless (and can hurt performance) in most games.
 		</member>
 		<member name="application/run/low_processor_mode_sleep_usec" type="int" setter="" getter="">
-			Amount of sleeping between frames when the low_processor_mode is enabled. This effectively reduces CPU usage when this mode is enabled.
+			Amount of sleeping between frames when the low-processor usage mode is enabled (in microseconds). Higher values will result in lower CPU usage.
 		</member>
 		<member name="application/run/main_scene" type="String" setter="" getter="">
 			Path to the main scene file that will be loaded when the project runs.
 		</member>
 		<member name="audio/channel_disable_threshold_db" type="float" setter="" getter="">
-			Audio buses will disable automatically when sound goes below a given DB threshold for a given time. This saves CPU as effects assigned to that bus will no longer do any processing.
+			Audio buses will disable automatically when sound goes below a given dB threshold for a given time. This saves CPU as effects assigned to that bus will no longer do any processing.
 		</member>
 		<member name="audio/channel_disable_time" type="float" setter="" getter="">
-			Audio buses will disable automatically when sound goes below a given DB threshold for a given time. This saves CPU as effects assigned to that bus will no longer do any processing.
+			Audio buses will disable automatically when sound goes below a given dB threshold for a given time. This saves CPU as effects assigned to that bus will no longer do any processing.
+		</member>
+		<member name="audio/default_bus_layout" type="String" setter="" getter="">
 		</member>
 		<member name="audio/driver" type="String" setter="" getter="">
+			Specifies the audio driver to use. This setting is platform-dependent as each platform supports different audio drivers. If left empty, the default audio driver will be used.
 		</member>
 		<member name="audio/enable_audio_input" type="bool" setter="" getter="">
-			This option should be enabled if project works with microphone.
+			If [code]true[/code], microphone input will be allowed. This requires appropriate permissions to be set when exporting to Android or iOS.
 		</member>
 		<member name="audio/mix_rate" type="int" setter="" getter="">
-			Mix rate used for audio. In general, it's better to not touch this and leave it to the host operating system.
+			Mixing rate used for audio. In general, it's better to not touch this and leave it to the host operating system.
 		</member>
 		<member name="audio/output_latency" type="int" setter="" getter="">
+			Output latency in milliseconds for audio. Lower values will result in lower audio latency at the cost of increased CPU usage. Low values may result in audible cracking on slower hardware.
 		</member>
 		<member name="audio/video_delay_compensation_ms" type="int" setter="" getter="">
 			Setting to hardcode audio delay when playing video. Best to leave this untouched unless you know what you are doing.
@@ -232,73 +234,105 @@
 			Default compression level for gzip. Affects compressed scenes and resources.
 		</member>
 		<member name="compression/formats/zlib/compression_level" type="int" setter="" getter="">
-			Default compression level for zlib. Affects compressed scenes and resources.
+			Default compression level for Zlib. Affects compressed scenes and resources.
 		</member>
 		<member name="compression/formats/zstd/compression_level" type="int" setter="" getter="">
-			Default compression level for zstd. Affects compressed scenes and resources.
+			Default compression level for Zstandard. Affects compressed scenes and resources.
 		</member>
 		<member name="compression/formats/zstd/long_distance_matching" type="bool" setter="" getter="">
-			Enable long distance matching in zstd.
+			Enables long-distance matching in Zstandard.
 		</member>
 		<member name="compression/formats/zstd/window_log_size" type="int" setter="" getter="">
 		</member>
 		<member name="debug/gdscript/completion/autocomplete_setters_and_getters" type="bool" setter="" getter="">
+			If [code]true[/code], displays getters and setters in autocompletion results in the script editor. This setting is meant to be used when porting old projects (Godot 2), as using member variables is the preferred style from Godot 3 onwards.
 		</member>
 		<member name="debug/gdscript/warnings/constant_used_as_function" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a constant is used as a function.
 		</member>
 		<member name="debug/gdscript/warnings/deprecated_keyword" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when deprecated keywords such as [code]slave[/code] are used.
 		</member>
 		<member name="debug/gdscript/warnings/enable" type="bool" setter="" getter="">
+			If [code]true[/code], enables specific GDScript warnings (see [code]debug/gdscript/warnings/*[/code] settings). If [code]false[/code], disables all GDScript warnings.
 		</member>
 		<member name="debug/gdscript/warnings/function_conflicts_constant" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a function is declared with the same name as a constant.
 		</member>
 		<member name="debug/gdscript/warnings/function_conflicts_variable" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a function is declared with the same name as a variable. This will turn into an error in a future version when first-class functions become supported in GDScript.
 		</member>
 		<member name="debug/gdscript/warnings/function_may_yield" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a function assigned to a variable may yield and return a function state instead of a value.
 		</member>
 		<member name="debug/gdscript/warnings/function_used_as_property" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when using a function as if it was a property.
 		</member>
 		<member name="debug/gdscript/warnings/incompatible_ternary" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a ternary operator may emit values with incompatible types.
 		</member>
 		<member name="debug/gdscript/warnings/integer_division" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when dividing an integer by another integer (the decimal part will be discarded).
 		</member>
 		<member name="debug/gdscript/warnings/narrowing_conversion" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when passing a floating-point value to a function that expects an integer (it will be converted and lose precision).
 		</member>
 		<member name="debug/gdscript/warnings/property_used_as_function" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when using a property as if it was a function.
 		</member>
 		<member name="debug/gdscript/warnings/return_value_discarded" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when calling a function without using its return value (by assigning it to a variable or using it as a function argument). Such return values are sometimes used to denote possible errors using the [Error] type.
+		</member>
+		<member name="debug/gdscript/warnings/shadowed_variable" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when defining a local or subclass member variable that would shadow a variable at an upper level (such as a member variable).
 		</member>
 		<member name="debug/gdscript/warnings/standalone_expression" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when calling an expression that has no effect on the surrounding code, such as writing [code]2 + 2[/code] as a statement.
 		</member>
 		<member name="debug/gdscript/warnings/treat_warnings_as_errors" type="bool" setter="" getter="">
+			If [code]true[/code], all warnings will be reported as if they were errors.
 		</member>
 		<member name="debug/gdscript/warnings/unassigned_variable" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when using a variable that wasn't previously assigned.
 		</member>
 		<member name="debug/gdscript/warnings/unassigned_variable_op_assign" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when assigning a variable using an assignment operator like [code]+=[/code] if the variable wasn't previously assigned.
 		</member>
 		<member name="debug/gdscript/warnings/unreachable_code" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when unreachable code is detected (such as after a [code]return[/code] statement that will always be executed).
 		</member>
 		<member name="debug/gdscript/warnings/unsafe_call_argument" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when using an expression whose type may not be compatible with the function parameter expected.
 		</member>
 		<member name="debug/gdscript/warnings/unsafe_cast" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when performing an unsafe cast.
 		</member>
 		<member name="debug/gdscript/warnings/unsafe_method_access" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when calling a method whose presence is not guaranteed at compile-time in the class.
 		</member>
 		<member name="debug/gdscript/warnings/unsafe_property_access" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when accessing a property whose presence is not guaranteed at compile-time in the class.
 		</member>
 		<member name="debug/gdscript/warnings/unused_argument" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a function parameter is unused.
 		</member>
 		<member name="debug/gdscript/warnings/unused_class_variable" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a member variable is unused.
 		</member>
 		<member name="debug/gdscript/warnings/unused_signal" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a signal is unused.
 		</member>
 		<member name="debug/gdscript/warnings/unused_variable" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a local variable is unused.
 		</member>
 		<member name="debug/gdscript/warnings/variable_conflicts_function" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when a variable is declared with the same name as a function. This will turn into an error in a future version when first-class functions become supported in GDScript.
 		</member>
 		<member name="debug/gdscript/warnings/void_assignment" type="bool" setter="" getter="">
+			If [code]true[/code], enables warnings when assigning the result of a function that returns [code]void[/code] to a variable.
 		</member>
 		<member name="debug/settings/crash_handler/message" type="String" setter="" getter="">
+			Message to be displayed before the backtrace when the engine crashes.
 		</member>
 		<member name="debug/settings/fps/force_fps" type="int" setter="" getter="">
 		</member>
@@ -309,34 +343,34 @@
 			Maximum amount of functions per frame allowed when profiling.
 		</member>
 		<member name="debug/settings/stdout/print_fps" type="bool" setter="" getter="">
-			Print frames per second to stdout. Not very useful in general.
+			Print frames per second to standard output every second.
 		</member>
 		<member name="debug/settings/stdout/verbose_stdout" type="bool" setter="" getter="">
-			Print more information to stdout when running. It shows info such as memory leaks, which scenes and resources are being loaded, etc.
+			Print more information to standard output when running. It displays information such as memory leaks, which scenes and resources are being loaded, etc.
 		</member>
 		<member name="debug/settings/visual_script/max_call_stack" type="int" setter="" getter="">
 			Maximum call stack in visual scripting, to avoid infinite recursion.
 		</member>
 		<member name="display/mouse_cursor/custom_image" type="String" setter="" getter="">
-			Custom image for the mouse cursor.
+			Custom image for the mouse cursor (limited to 256x256).
 		</member>
 		<member name="display/mouse_cursor/custom_image_hotspot" type="Vector2" setter="" getter="">
 			Hotspot for the custom mouse cursor image.
 		</member>
 		<member name="display/mouse_cursor/tooltip_position_offset" type="Vector2" setter="" getter="">
-			Position offset for tooltips, relative to the hotspot of the mouse cursor.
+			Position offset for tooltips, relative to the mouse cursor's hotspot.
 		</member>
 		<member name="display/window/dpi/allow_hidpi" type="bool" setter="" getter="">
-			Allow HiDPI display on Windows and OSX. On Desktop Linux, this can't be enabled or disabled.
+			If [code]true[/code], allows HiDPI display on Windows and macOS. This setting has no effect on desktop Linux, as DPI-awareness fallbacks are not supported there.
 		</member>
 		<member name="display/window/energy_saving/keep_screen_on" type="bool" setter="" getter="">
-			Force keep the screen on, so the screensaver does not take over. Works on Desktop and Mobile.
+			If [code]true[/code], keeps the screen on (even in case of inactivity), so the screensaver does not take over. Works on desktop and mobile platforms.
 		</member>
 		<member name="display/window/handheld/orientation" type="String" setter="" getter="">
-			Default orientation for cell phone or tablet.
+			Default orientation on mobile devices.
 		</member>
 		<member name="display/window/per_pixel_transparency/allowed" type="bool" setter="" getter="">
-			Allow per pixel transparency in a Desktop window. This affects performance if not needed, so leave it off.
+			If [code]true[/code], allows per-pixel transparency in a desktop window. This affects performance if not needed, so leave it on [code]false[/code] unless you need it.
 		</member>
 		<member name="display/window/per_pixel_transparency/enabled" type="bool" setter="" getter="">
 		</member>
@@ -355,19 +389,19 @@
 			Set the main window height. On desktop, this is the default window size. Stretch mode settings use this also as a reference when enabled.
 		</member>
 		<member name="display/window/size/resizable" type="bool" setter="" getter="">
-			Allow the window to be resizable by default.
+			Allows the window to be resizable by default.
 		</member>
 		<member name="display/window/size/test_height" type="int" setter="" getter="">
-			Test a different height for the window. The main use for this is to test with stretch modes.
+			If greater than zero, uses a different height for the window when running from the editor. The main use for this is to test with stretch modes.
 		</member>
 		<member name="display/window/size/test_width" type="int" setter="" getter="">
-			Test a different width for the window. The main use for this is to test with stretch modes.
+			If greater than zero, uses a different width for the window when running from the editor. The main use for this is to test with stretch modes.
 		</member>
 		<member name="display/window/size/width" type="int" setter="" getter="">
-			Set the main window width. On desktop, this is the default window size. Stretch mode settings use this also as a reference when enabled.
+			Sets the main window width. On desktop platforms, this is the default window size. Stretch mode settings use this also as a reference when enabled.
 		</member>
 		<member name="display/window/vsync/use_vsync" type="bool" setter="" getter="">
-			Use VSync. Don't be stupid, don't turn this off.
+			If [code]true[/code], enables vertical synchronization. This eliminates tearing that may appear in moving scenes, at the cost of higher input latency and stuttering at lower framerates. If [code]false[/code], vertical synchronization will be disabled, however, many platforms will enforce it regardless (such as mobile platforms and HTML5).
 		</member>
 		<member name="editor/active" type="bool" setter="" getter="">
 			Internal editor setting, don't touch.
@@ -375,22 +409,22 @@
 		<member name="gui/common/default_scroll_deadzone" type="int" setter="" getter="">
 		</member>
 		<member name="gui/common/swap_ok_cancel" type="bool" setter="" getter="">
-			Enable swap OK and Cancel buttons on dialogs. This is because Windows/MacOS/Desktop Linux may use them in different order, so the GUI swaps them depending on the host OS. Disable this behavior by turning this setting off.
+			If [code]true[/code], swaps OK and Cancel buttons in dialogs on Windows and UWP to follow interface conventions.
 		</member>
 		<member name="gui/theme/custom" type="String" setter="" getter="">
 			Use a custom theme resource, set a path to it here.
 		</member>
 		<member name="gui/theme/custom_font" type="String" setter="" getter="">
-			USe a custom default font resource, set a path to it here.
+			Use a custom default font resource, set a path to it here.
 		</member>
 		<member name="gui/theme/use_hidpi" type="bool" setter="" getter="">
-			Make sure the theme used works with hidpi.
+			If [code]true[/code], makes sure the theme used works with HiDPI.
 		</member>
 		<member name="gui/timers/incremental_search_max_interval_msec" type="int" setter="" getter="">
-			Timer setting for incremental search in Tree, IntemList, etc. controls.
+			Timer setting for incremental search in Tree, IntemList, etc. controls (in milliseconds).
 		</member>
 		<member name="gui/timers/text_edit_idle_detect_sec" type="float" setter="" getter="">
-			Timer for detecting idle in the editor.
+			Timer for detecting idle in the editor (in seconds).
 		</member>
 		<member name="input/ui_accept" type="Dictionary" setter="" getter="">
 		</member>
@@ -419,8 +453,10 @@
 		<member name="input/ui_up" type="Dictionary" setter="" getter="">
 		</member>
 		<member name="input_devices/pointing/emulate_mouse_from_touch" type="bool" setter="" getter="">
+			If [code]true[/code], sends mouse input events when tapping or swiping on the touchscreen.
 		</member>
 		<member name="input_devices/pointing/emulate_touch_from_mouse" type="bool" setter="" getter="">
+			If [code]true[/code], sends touch input events when clicking or dragging the mouse.
 		</member>
 		<member name="layer_names/2d_physics/layer_1" type="String" setter="" getter="">
 		</member>
@@ -583,23 +619,25 @@
 		<member name="layer_names/3d_render/layer_9" type="String" setter="" getter="">
 		</member>
 		<member name="locale/fallback" type="String" setter="" getter="">
+			The locale to fall back to if a translation isn't available in a given language. If left empty, [code]en[/code] (English) will be used.
 		</member>
 		<member name="locale/test" type="String" setter="" getter="">
+			If non-empty, this locale will be used when running the project from the editor.
 		</member>
 		<member name="logging/file_logging/enable_file_logging" type="bool" setter="" getter="">
-			Log all output to a file.
+			If [code]true[/code], logs all output to files.
 		</member>
 		<member name="logging/file_logging/log_path" type="String" setter="" getter="">
-			Path to logs withint he project. Using an [code]user://[/code] based path is recommended.
+			Path to logs within the project. Using an [code]user://[/code] path is recommended.
 		</member>
 		<member name="logging/file_logging/max_log_files" type="int" setter="" getter="">
-			Amount of log files (used for rotation).
+			Specifies the maximum amount of log files allowed (used for rotation).
 		</member>
 		<member name="memory/limits/message_queue/max_size_kb" type="int" setter="" getter="">
 			Godot uses a message queue to defer some function calls. If you run out of space on it (you will see an error), you can increase the size here.
 		</member>
 		<member name="memory/limits/multithreaded_server/rid_pool_prealloc" type="int" setter="" getter="">
-			This is used by servers when used in multi threading mode (servers and visual). RIDs are preallocated to avoid stalling the server requesting them on threads. If servers get stalled too often when loading resources in a thread, increase this number.
+			This is used by servers when used in multi-threading mode (servers and visual). RIDs are preallocated to avoid stalling the server requesting them on threads. If servers get stalled too often when loading resources in a thread, increase this number.
 		</member>
 		<member name="network/limits/debugger_stdout/max_chars_per_second" type="int" setter="" getter="">
 			Maximum amount of characters allowed to send as output from the debugger. Over this value, content is dropped. This helps not to stall the debugger connection.
@@ -611,7 +649,7 @@
 			Maximum amount of messages allowed to send as output from the debugger. Over this value, content is dropped. This helps not to stall the debugger connection.
 		</member>
 		<member name="network/limits/packet_peer_stream/max_buffer_po2" type="int" setter="" getter="">
-			Default size of packet peer stream for deserializing godot data. Over this size, data is dropped.
+			Default size of packet peer stream for deserializing Godot data. Over this size, data is dropped.
 		</member>
 		<member name="network/limits/websocket_client/max_in_buffer_kb" type="int" setter="" getter="">
 		</member>
@@ -630,13 +668,13 @@
 		<member name="network/limits/websocket_server/max_out_packets" type="int" setter="" getter="">
 		</member>
 		<member name="network/remote_fs/page_read_ahead" type="int" setter="" getter="">
-			Amount of read ahead used by remote filesystem. Improves latency.
+			Amount of read ahead used by remote filesystem. Higher values decrease the effects of latency at the cost of higher bandwidth usage.
 		</member>
 		<member name="network/remote_fs/page_size" type="int" setter="" getter="">
-			Page size used by remote filesystem.
+			Page size used by remote filesystem (in bytes).
 		</member>
 		<member name="node/name_casing" type="int" setter="" getter="">
-			When creating nodes names automatically, set the type of casing in this project. This is mostly an editor setting.
+			When creating node names automatically, set the type of casing in this project. This is mostly an editor setting.
 		</member>
 		<member name="node/name_num_separator" type="int" setter="" getter="">
 			What to use to separate node name from number. This is mostly an editor setting.
@@ -644,20 +682,21 @@
 		<member name="physics/2d/physics_engine" type="String" setter="" getter="">
 		</member>
 		<member name="physics/2d/thread_model" type="int" setter="" getter="">
-			Set whether physics is run on the main thread or a separate one. Running the server on a thread increases performance, but restricts API Access to only physics process.
+			Sets whether physics is run on the main thread or a separate one. Running the server on a thread increases performance, but restricts API access to only physics process.
 		</member>
 		<member name="physics/3d/active_soft_world" type="bool" setter="" getter="">
 		</member>
 		<member name="physics/3d/physics_engine" type="String" setter="" getter="">
+			Sets which physics engine to use.
 		</member>
 		<member name="physics/common/physics_fps" type="int" setter="" getter="">
 			Frames per second used in the physics. Physics always needs a fixed amount of frames per second.
 		</member>
 		<member name="physics/common/physics_jitter_fix" type="float" setter="" getter="">
-			Fix to improve physics jitter, specially on monitors where refresh rate is different than physics FPS.
+			Fix to improve physics jitter, specially on monitors where refresh rate is different than the physics FPS.
 		</member>
 		<member name="rendering/environment/default_clear_color" type="Color" setter="" getter="">
-			Default background clear color. Overridable per [Viewport] using its [Environment]. See [member Environment.background_mode] and [member Environment.background_color] in particular. To change this default color programmatically, use [method VisualServer.set_default_clear_color].
+			Default background clear color. Overriddable per [Viewport] using its [Environment]. See [member Environment.background_mode] and [member Environment.background_color] in particular. To change this default color programmatically, use [method VisualServer.set_default_clear_color].
 		</member>
 		<member name="rendering/limits/buffers/blend_shape_max_buffer_size_kb" type="int" setter="" getter="">
 			Max buffer size for blend shapes. Any blend shape bigger than this will not work.
@@ -672,68 +711,70 @@
 			Max buffer size for drawing immediate objects (ImmediateGeometry nodes). Nodes using more than this size will not work.
 		</member>
 		<member name="rendering/limits/rendering/max_renderable_elements" type="int" setter="" getter="">
-			Max amount of elements renderable in a frame. If more than this are visible per frame, they will be dropped. Keep in mind elements refer to mesh surfaces and not mesh themselves.
+			Max amount of elements renderable in a frame. If more than this are visible per frame, they will be dropped. Keep in mind elements refer to mesh surfaces and not meshes themselves.
 		</member>
 		<member name="rendering/limits/time/time_rollover_secs" type="float" setter="" getter="">
-			Shaders have a time variable that constantly increases. At some point it needs to be rolled back to zero to avoid numerical errors on shader animations. This setting specifies when.
+			Shaders have a time variable that constantly increases. At some point, it needs to be rolled back to zero to avoid precision errors on shader animations. This setting specifies when (in seconds).
 		</member>
 		<member name="rendering/quality/2d/gles2_use_nvidia_rect_flicker_workaround" type="bool" setter="" getter="">
-			Some Nvidia GPU drivers have a bug, which produces flickering issues for the [code]draw_rect[/code] method, especially as used in [TileMap]. Refer to https://github.com/godotengine/godot/issues/9913 for details.
-			If [code]true[/code], this option enables a "safe" code path for such Nvidia GPUs, at the cost of performance. This option only impacts the GLES2 rendering backend (so the bug stays if you use GLES3), and only desktop platforms. Default value: [code]false[/code].
+			Some NVIDIA GPU drivers have a bug which produces flickering issues for the [code]draw_rect[/code] method, especially as used in [TileMap]. Refer to [url]https://github.com/godotengine/godot/issues/9913[/url] for details.
+			If [code]true[/code], this option enables a "safe" code path for such NVIDIA GPUs at the cost of performance. This option only impacts the GLES2 rendering backend (so the bug stays if you use GLES3), and only desktop platforms.
 		</member>
 		<member name="rendering/quality/2d/use_pixel_snap" type="bool" setter="" getter="">
-			Force snapping of polygons to pixels in 2D rendering. May help in some pixel art styles.
+			If [code]true[/code], forces snapping of polygons to pixels in 2D rendering. May help in some pixel art styles.
 		</member>
 		<member name="rendering/quality/depth_prepass/disable_for_vendors" type="String" setter="" getter="">
 			Disable depth pre-pass for some GPU vendors (usually mobile), as their architecture already does this.
 		</member>
 		<member name="rendering/quality/depth_prepass/enable" type="bool" setter="" getter="">
-			Do a previous depth pass before rendering materials. This increases performance in scenes with high overdraw, when complex materials and lighting are used.
+			If [code]true[/code], performs a previous depth pass before rendering materials. This increases performance in scenes with high overdraw, when complex materials and lighting are used.
 		</member>
 		<member name="rendering/quality/directional_shadow/size" type="int" setter="" getter="">
-			Size in pixels of the directional shadow.
+			The directional shadow's size in pixels. Higher values will result in sharper shadows, at the cost of performance.
 		</member>
 		<member name="rendering/quality/directional_shadow/size.mobile" type="int" setter="" getter="">
 		</member>
 		<member name="rendering/quality/driver/driver_name" type="String" setter="" getter="">
-			Name of the configured video driver ("GLES2" or "GLES3").
-			Note that the backend in use can be overridden at runtime via the [code]--video-driver[/code] command line argument, or by the [member rendering/quality/driver/fallback_to_gles2] option if the target system does not support GLES3 and falls back to GLES2. In such cases, this property is not updated, so use [method OS.get_current_video_driver] to query it at runtime.
+			The video driver to use ("GLES2" or "GLES3").
+			Note that the backend in use can be overridden at runtime via the [code]--video-driver[/code] command line argument, or by the [member rendering/quality/driver/fallback_to_gles2] option if the target system does not support GLES3 and falls back to GLES2. In such cases, this property is not updated, so use [method OS.get_current_video_driver] to query it at run-time.
 		</member>
 		<member name="rendering/quality/driver/fallback_to_gles2" type="bool" setter="" getter="">
-			Whether to allow falling back to the GLES2 driver if the GLES3 driver is not supported. Default value: [code]false[/code].
-			Note that the two video drivers are not drop-in replacements for each other, so a game designed for GLES3 might not work properly when falling back to GLES2. In particular, some features of the GLES3 backend are not available in GLES2. Enabling this setting also means that both ETC and ETC2 VRAM-compressed textures will be exported on Android and iOS, increasing the size of the game data pack.
+			If [code]true[/code], allows falling back to the GLES2 driver if the GLES3 driver is not supported.
+			Note that the two video drivers are not drop-in replacements for each other, so a game designed for GLES3 might not work properly when falling back to GLES2. In particular, some features of the GLES3 backend are not available in GLES2. Enabling this setting also means that both ETC and ETC2 VRAM-compressed textures will be exported on Android and iOS, increasing the data pack's size.
 		</member>
 		<member name="rendering/quality/filters/anisotropic_filter_level" type="int" setter="" getter="">
-			Maximum Anisotropic filter level used for textures when anisotropy enabled.
+			Maximum anisotropic filter level used for textures with anisotropy enabled. Higher values will result in sharper textures when viewed from oblique angles, at the cost of performance. Only power-of-two values are valid (2, 4, 8, 16).
 		</member>
 		<member name="rendering/quality/filters/use_nearest_mipmap_filter" type="bool" setter="" getter="">
-			Force to use nearest mipmap filtering when using mipmaps. This may increase performance in mobile as less memory bandwidth is used.
+			If [code]true[/code], uses nearest-neighbor mipmap filtering when using mipmaps (also called "bilinear filtering"), which will result in visible seams appearing between mipmap stages. This may increase performance in mobile as less memory bandwidth is used. If [code]false[/code], linear mipmap filtering (also called "trilinear filtering") is used.
 		</member>
 		<member name="rendering/quality/intended_usage/framebuffer_allocation" type="int" setter="" getter="">
-			Strategy used for framebuffer allocation. The simpler it is, the less memory it uses (but the least features it supports).
+			Strategy used for framebuffer allocation. The simpler it is, the less resources it uses (but the less features it supports).
 		</member>
 		<member name="rendering/quality/intended_usage/framebuffer_allocation.mobile" type="int" setter="" getter="">
 		</member>
 		<member name="rendering/quality/reflections/high_quality_ggx" type="bool" setter="" getter="">
-			For reflection probes and panorama backgrounds (sky), use a high amount of samples to create ggx blurred versions (used for roughness).
+			If [code]true[/code], uses a high amount of samples to create blurred variants of reflection probes and panorama backgrounds (sky). Those blurred variants are used by rough materials.
 		</member>
 		<member name="rendering/quality/reflections/high_quality_ggx.mobile" type="bool" setter="" getter="">
 		</member>
 		<member name="rendering/quality/reflections/texture_array_reflections" type="bool" setter="" getter="">
-			For reflection probes and panorama backgrounds (sky), use a texture array instead of mipmaps. This reduces jitter noise on reflections, but costs more performance and memory.
+			If [code]true[/code], uses texture arrays instead of mipmaps for reflection probes and panorama backgrounds (sky). This reduces jitter noise on reflections, but costs more performance and memory.
 		</member>
 		<member name="rendering/quality/reflections/texture_array_reflections.mobile" type="bool" setter="" getter="">
 		</member>
 		<member name="rendering/quality/shading/force_blinn_over_ggx" type="bool" setter="" getter="">
+			If [code]true[/code], uses faster but lower-quality Blinn model to generate blurred reflections instead of the GGX model.
 		</member>
 		<member name="rendering/quality/shading/force_blinn_over_ggx.mobile" type="bool" setter="" getter="">
 		</member>
 		<member name="rendering/quality/shading/force_lambert_over_burley" type="bool" setter="" getter="">
+			If [code]true[/code], uses faster but lower-quality Lambert material lighting model instead of Burley.
 		</member>
 		<member name="rendering/quality/shading/force_lambert_over_burley.mobile" type="bool" setter="" getter="">
 		</member>
 		<member name="rendering/quality/shading/force_vertex_shading" type="bool" setter="" getter="">
-			Force vertex shading for all rendering. This can increase performance a lot, but also reduces quality immensely. Can work to optimize on very low end mobile.
+			If [code]true[/code], forces vertex shading for all rendering. This can increase performance a lot, but also reduces quality immensely. Can be used to optimize performance on low-end mobile devices.
 		</member>
 		<member name="rendering/quality/shading/force_vertex_shading.mobile" type="bool" setter="" getter="">
 		</member>
@@ -750,12 +791,12 @@
 			Subdivision quadrant size for shadow mapping. See shadow mapping documentation.
 		</member>
 		<member name="rendering/quality/shadow_atlas/size" type="int" setter="" getter="">
-			Size for shadow atlas (used for point and omni lights). See documentation.
+			Size for shadow atlas (used for OmniLights and SpotLights). See documentation.
 		</member>
 		<member name="rendering/quality/shadow_atlas/size.mobile" type="int" setter="" getter="">
 		</member>
 		<member name="rendering/quality/shadows/filter_mode" type="int" setter="" getter="">
-			Shadow filter mode. The more complex the filter, the more memory bandwidth required.
+			Shadow filter mode. Higher-quality settings result in smoother shadows that flicker less when moving. "Disabled" is the fastest option, but also has the lowest quality. "PCF5" is smoother but is also slower. "PCF13" is the smoothest option, but is also the slowest.
 		</member>
 		<member name="rendering/quality/shadows/filter_mode.mobile" type="int" setter="" getter="">
 		</member>
@@ -771,24 +812,25 @@
 			Weight subsurface scattering samples. Helps to avoid reading samples from unrelated parts of the screen.
 		</member>
 		<member name="rendering/quality/voxel_cone_tracing/high_quality" type="bool" setter="" getter="">
-			Use high quality voxel cone tracing (looks better, but requires a higher end GPU).
+			Use high-quality voxel cone tracing. This results in better-looking reflections, but is much more expensive on the GPU.
 		</member>
 		<member name="rendering/threads/thread_model" type="int" setter="" getter="">
-			Thread model for rendering. Rendering on a thread can vastly improve performance, but syncinc to the main thread can cause a bit more jitter.
+			Thread model for rendering. Rendering on a thread can vastly improve performance, but synchronizing to the main thread can cause a bit more jitter.
 		</member>
 		<member name="rendering/vram_compression/import_bptc" type="bool" setter="" getter="">
+			If [code]true[/code], the texture importer will import VRAM-compressed textures using the BPTC algorithm. This texture compression algorithm is only supported on desktop platforms, and only when using the GLES3 renderer.
 		</member>
 		<member name="rendering/vram_compression/import_etc" type="bool" setter="" getter="">
-			If the project uses this compression (usually low end mobile), texture importer will import these.
+			If [code]true[/code], the texture importer will import VRAM-compressed textures using the Ericsson Texture Compression algorithm. This algorithm doesn't support alpha channels in textures.
 		</member>
 		<member name="rendering/vram_compression/import_etc2" type="bool" setter="" getter="">
-			If the project uses this compression (usually high end mobile), texture importer will import these.
+			If [code]true[/code], the texture importer will import VRAM-compressed textures using the Ericsson Texture Compression 2 algorithm. This texture compression algorithm is only supported when using the GLES3 renderer.
 		</member>
 		<member name="rendering/vram_compression/import_pvrtc" type="bool" setter="" getter="">
-			If the project uses this compression (usually iOS), texture importer will import these.
+			If [code]true[/code], the texture importer will import VRAM-compressed textures using the PowerVR Texture Compression algorithm. This texture compression algorithm is only supported on iOS.
 		</member>
 		<member name="rendering/vram_compression/import_s3tc" type="bool" setter="" getter="">
-			If the project uses this compression (usually Desktop and Consoles), texture importer will import these.
+			If [code]true[/code], the texture importer will import VRAM-compressed textures using the S3 Texture Compression algorithm. This algorithm is only supported on desktop platforms and consoles.
 		</member>
 		<member name="script" type="Script" setter="" getter="">
 		</member>
diff --git a/doc/classes/ProximityGroup.xml b/doc/classes/ProximityGroup.xml
index 1f1c45fbf9..ad4cb682cb 100644
--- a/doc/classes/ProximityGroup.xml
+++ b/doc/classes/ProximityGroup.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ProximityGroup" inherits="Spatial" category="Core" version="3.1">
+<class name="ProximityGroup" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		General purpose proximity-detection node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="broadcast">
 			<return type="void">
diff --git a/doc/classes/ProxyTexture.xml b/doc/classes/ProxyTexture.xml
index 69702ee22e..a36f670c42 100644
--- a/doc/classes/ProxyTexture.xml
+++ b/doc/classes/ProxyTexture.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ProxyTexture" inherits="Texture" category="Core" version="3.1">
+<class name="ProxyTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/QuadMesh.xml b/doc/classes/QuadMesh.xml
index a45b2ddf4b..1b33f62e0f 100644
--- a/doc/classes/QuadMesh.xml
+++ b/doc/classes/QuadMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="QuadMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="QuadMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Class representing a square mesh.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Quat.xml b/doc/classes/Quat.xml
index 990dcc7a91..f7134e580d 100644
--- a/doc/classes/Quat.xml
+++ b/doc/classes/Quat.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Quat" category="Built-In Types" version="3.1">
+<class name="Quat" category="Built-In Types" version="3.2">
 	<brief_description>
 		Quaternion.
 	</brief_description>
@@ -11,8 +11,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/using_transforms.html#interpolating-with-quaternions</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Quat">
 			<return type="Quat">
diff --git a/doc/classes/RID.xml b/doc/classes/RID.xml
index a289b68c9a..89778e1c8b 100644
--- a/doc/classes/RID.xml
+++ b/doc/classes/RID.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RID" category="Built-In Types" version="3.1">
+<class name="RID" category="Built-In Types" version="3.2">
 	<brief_description>
 		Handle for a [Resource]'s unique ID.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="RID">
 			<return type="RID">
diff --git a/doc/classes/RandomNumberGenerator.xml b/doc/classes/RandomNumberGenerator.xml
index fff13402f1..be7bcc9c35 100644
--- a/doc/classes/RandomNumberGenerator.xml
+++ b/doc/classes/RandomNumberGenerator.xml
@@ -1,20 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RandomNumberGenerator" inherits="Reference" category="Core" version="3.1">
+<class name="RandomNumberGenerator" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
-		A class for generation pseudo-random numbers.
+		A class for generating pseudo-random numbers.
 	</brief_description>
 	<description>
+		RandomNumberGenerator is a class for generating pseudo-random numbers. It currently uses PCG32. The underlying algorithm is an implementation detail. As a result, it should not be depended upon for reproducible random streams across Godot versions.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="randf">
 			<return type="float">
 			</return>
 			<description>
-				Generates pseudo-random float between '0.0' and '1.0'.
+				Generates pseudo-random float between '0.0' and '1.0', inclusive.
 			</description>
 		</method>
 		<method name="randf_range">
@@ -25,14 +24,25 @@
 			<argument index="1" name="to" type="float">
 			</argument>
 			<description>
-				Generates pseudo-random float between [code]from[/code] and [code]to[/code].
+				Generates pseudo-random float between [code]from[/code] and [code]to[/code], inclusive.
+			</description>
+		</method>
+		<method name="randfn">
+			<return type="float">
+			</return>
+			<argument index="0" name="mean" type="float" default="0.0">
+			</argument>
+			<argument index="1" name="deviation" type="float" default="1.0">
+			</argument>
+			<description>
+				Generates normally(gaussian) distributed pseudo-random number, using Box-Muller transform with the specified [code]mean[/code] and a standard [code]deviation[/code].
 			</description>
 		</method>
 		<method name="randi">
 			<return type="int">
 			</return>
 			<description>
-				Generates pseudo-random 32-bit unsigned integer between '0' and '4294967295'.
+				Generates pseudo-random 32-bit unsigned integer between '0' and '4294967295', inclusive.
 			</description>
 		</method>
 		<method name="randi_range">
@@ -57,6 +67,7 @@
 	<members>
 		<member name="seed" type="int" setter="set_seed" getter="get_seed">
 			The seed used by the random number generator. A given seed will give a reproducible sequence of pseudo-random numbers.
+			[b]Note:[/b] The RNG does not have an avalanche effect, and can output similar random streams given similar seeds. Consider using a hash function to improve your seed quality if they're sourced externally.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/Range.xml b/doc/classes/Range.xml
index 0dc02a68da..3c7317bf85 100644
--- a/doc/classes/Range.xml
+++ b/doc/classes/Range.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Range" inherits="Control" category="Core" version="3.1">
+<class name="Range" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Abstract base class for range-based controls.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="share">
 			<return type="void">
diff --git a/doc/classes/RayCast.xml b/doc/classes/RayCast.xml
index 22c70b789f..1d2999a1ed 100644
--- a/doc/classes/RayCast.xml
+++ b/doc/classes/RayCast.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RayCast" inherits="Spatial" category="Core" version="3.1">
+<class name="RayCast" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Query the closest object intersecting a ray.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_exception">
 			<return type="void">
diff --git a/doc/classes/RayCast2D.xml b/doc/classes/RayCast2D.xml
index afb80f2f6e..7a16e9e5e0 100644
--- a/doc/classes/RayCast2D.xml
+++ b/doc/classes/RayCast2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RayCast2D" inherits="Node2D" category="Core" version="3.1">
+<class name="RayCast2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Query the closest object intersecting a ray.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_exception">
 			<return type="void">
diff --git a/doc/classes/RayShape.xml b/doc/classes/RayShape.xml
index 50d324f72c..69b159fa97 100644
--- a/doc/classes/RayShape.xml
+++ b/doc/classes/RayShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RayShape" inherits="Shape" category="Core" version="3.1">
+<class name="RayShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Ray shape for 3D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/RayShape2D.xml b/doc/classes/RayShape2D.xml
index 2fdc1930fb..e0ef01bd2a 100644
--- a/doc/classes/RayShape2D.xml
+++ b/doc/classes/RayShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RayShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="RayShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Ray shape for 2D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Rect2.xml b/doc/classes/Rect2.xml
index 248b3a6010..c4f7844a03 100644
--- a/doc/classes/Rect2.xml
+++ b/doc/classes/Rect2.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Rect2" category="Built-In Types" version="3.1">
+<class name="Rect2" category="Built-In Types" version="3.2">
 	<brief_description>
 		2D Axis-aligned bounding box.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/math/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Rect2">
 			<return type="Rect2">
@@ -20,7 +18,7 @@
 			<argument index="1" name="size" type="Vector2">
 			</argument>
 			<description>
-				Constructs a [code]Rect2[/code] by position and size.
+				Constructs a [Rect2] by position and size.
 			</description>
 		</method>
 		<method name="Rect2">
@@ -35,14 +33,14 @@
 			<argument index="3" name="height" type="float">
 			</argument>
 			<description>
-				Constructs a [code]Rect2[/code] by x, y, width, and height.
+				Constructs a [Rect2] by x, y, width, and height.
 			</description>
 		</method>
 		<method name="abs">
 			<return type="Rect2">
 			</return>
 			<description>
-				Returns a [code]Rect2[/code] with equivalent position and area, modified so that the top-left corner is the origin and [code]width[/code] and [code]height[/code] are positive.
+				Returns a [Rect2] with equivalent position and area, modified so that the top-left corner is the origin and [code]width[/code] and [code]height[/code] are positive.
 			</description>
 		</method>
 		<method name="clip">
@@ -51,7 +49,7 @@
 			<argument index="0" name="b" type="Rect2">
 			</argument>
 			<description>
-				Returns the intersection of this [code]Rect2[/code] and b.
+				Returns the intersection of this [Rect2] and b.
 			</description>
 		</method>
 		<method name="encloses">
@@ -60,7 +58,7 @@
 			<argument index="0" name="b" type="Rect2">
 			</argument>
 			<description>
-				Returns [code]true[/code] if this [code]Rect2[/code] completely encloses another one.
+				Returns [code]true[/code] if this [Rect2] completely encloses another one.
 			</description>
 		</method>
 		<method name="expand">
@@ -69,14 +67,14 @@
 			<argument index="0" name="to" type="Vector2">
 			</argument>
 			<description>
-				Returns this [code]Rect2[/code] expanded to include a given point.
+				Returns this [Rect2] expanded to include a given point.
 			</description>
 		</method>
 		<method name="get_area">
 			<return type="float">
 			</return>
 			<description>
-				Returns the area of the [code]Rect2[/code].
+				Returns the area of the [Rect2].
 			</description>
 		</method>
 		<method name="grow">
@@ -85,7 +83,7 @@
 			<argument index="0" name="by" type="float">
 			</argument>
 			<description>
-				Returns a copy of the [code]Rect2[/code] grown a given amount of units towards all the sides.
+				Returns a copy of the [Rect2] grown a given amount of units towards all the sides.
 			</description>
 		</method>
 		<method name="grow_individual">
@@ -100,7 +98,7 @@
 			<argument index="3" name=" bottom" type="float">
 			</argument>
 			<description>
-				Returns a copy of the [code]Rect2[/code] grown a given amount of units towards each direction individually.
+				Returns a copy of the [Rect2] grown a given amount of units towards each direction individually.
 			</description>
 		</method>
 		<method name="grow_margin">
@@ -111,14 +109,14 @@
 			<argument index="1" name="by" type="float">
 			</argument>
 			<description>
-				Returns a copy of the [code]Rect2[/code] grown a given amount of units towards the [enum Margin] direction.
+				Returns a copy of the [Rect2] grown a given amount of units towards the [enum Margin] direction.
 			</description>
 		</method>
 		<method name="has_no_area">
 			<return type="bool">
 			</return>
 			<description>
-				Returns [code]true[/code] if the [code]Rect2[/code] is flat or empty.
+				Returns [code]true[/code] if the [Rect2] is flat or empty.
 			</description>
 		</method>
 		<method name="has_point">
@@ -127,7 +125,7 @@
 			<argument index="0" name="point" type="Vector2">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]Rect2[/code] contains a point.
+				Returns [code]true[/code] if the [Rect2] contains a point.
 			</description>
 		</method>
 		<method name="intersects">
@@ -136,7 +134,7 @@
 			<argument index="0" name="b" type="Rect2">
 			</argument>
 			<description>
-				Returns [code]true[/code] if the [code]Rect2[/code] overlaps with another.
+				Returns [code]true[/code] if the [Rect2] overlaps with another.
 			</description>
 		</method>
 		<method name="merge">
diff --git a/doc/classes/RectangleShape2D.xml b/doc/classes/RectangleShape2D.xml
index 4a312503f4..62ead5598b 100644
--- a/doc/classes/RectangleShape2D.xml
+++ b/doc/classes/RectangleShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RectangleShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="RectangleShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Rectangle shape for 2D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Reference.xml b/doc/classes/Reference.xml
index 3238501633..bc24483367 100644
--- a/doc/classes/Reference.xml
+++ b/doc/classes/Reference.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Reference" inherits="Object" category="Core" version="3.1">
+<class name="Reference" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Base class for anything that keeps a reference count.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="init_ref">
 			<return type="bool">
diff --git a/doc/classes/ReferenceRect.xml b/doc/classes/ReferenceRect.xml
index e1cb104e40..0e19e35e58 100644
--- a/doc/classes/ReferenceRect.xml
+++ b/doc/classes/ReferenceRect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ReferenceRect" inherits="Control" category="Core" version="3.1">
+<class name="ReferenceRect" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Reference frame for GUI.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ReflectionProbe.xml b/doc/classes/ReflectionProbe.xml
index 7662f72eca..3268e9f8e5 100644
--- a/doc/classes/ReflectionProbe.xml
+++ b/doc/classes/ReflectionProbe.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ReflectionProbe" inherits="VisualInstance" category="Core" version="3.1">
+<class name="ReflectionProbe" inherits="VisualInstance" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
@@ -7,8 +7,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/reflection_probes.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/RemoteTransform.xml b/doc/classes/RemoteTransform.xml
index 3df94bdfca..17ee7bf123 100644
--- a/doc/classes/RemoteTransform.xml
+++ b/doc/classes/RemoteTransform.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RemoteTransform" inherits="Spatial" category="Core" version="3.1">
+<class name="RemoteTransform" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		RemoteTransform pushes its own [Transform] to another [Spatial] derived Node in the scene.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/RemoteTransform2D.xml b/doc/classes/RemoteTransform2D.xml
index cf0e6c6199..b8eb7c6f13 100644
--- a/doc/classes/RemoteTransform2D.xml
+++ b/doc/classes/RemoteTransform2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RemoteTransform2D" inherits="Node2D" category="Core" version="3.1">
+<class name="RemoteTransform2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		RemoteTransform2D pushes its own [Transform2D] to another [CanvasItem] derived Node in the scene.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Resource.xml b/doc/classes/Resource.xml
index 4369f77abd..8b6fb549aa 100644
--- a/doc/classes/Resource.xml
+++ b/doc/classes/Resource.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Resource" inherits="Reference" category="Core" version="3.1">
+<class name="Resource" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Base class for all resources.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/stable/getting_started/step_by_step/resources.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_setup_local_to_scene" qualifiers="virtual">
 			<return type="void">
@@ -52,7 +50,7 @@
 			<argument index="0" name="path" type="String">
 			</argument>
 			<description>
-				Sets the path of the resource. Differs from [code]set_path()[/code], if another [code]Resource[/code] exists with "path" it over-takes it, instead of failing.
+				Sets the path of the resource. Differs from [code]set_path()[/code], if another [Resource] exists with "path" it over-takes it, instead of failing.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/ResourceFormatDDS.xml b/doc/classes/ResourceFormatDDS.xml
index e237dfc6a5..9717052a5d 100644
--- a/doc/classes/ResourceFormatDDS.xml
+++ b/doc/classes/ResourceFormatDDS.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatDDS" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatDDS" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatImporter.xml b/doc/classes/ResourceFormatImporter.xml
index fa5b44fa18..e5c84e6db4 100644
--- a/doc/classes/ResourceFormatImporter.xml
+++ b/doc/classes/ResourceFormatImporter.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatImporter" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatImporter" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoader.xml b/doc/classes/ResourceFormatLoader.xml
index 97547a607a..925706b50c 100644
--- a/doc/classes/ResourceFormatLoader.xml
+++ b/doc/classes/ResourceFormatLoader.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoader" inherits="Reference" category="Core" version="3.1">
+<class name="ResourceFormatLoader" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Loads a specific resource type from a file.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_dependencies" qualifiers="virtual">
 			<return type="void">
diff --git a/doc/classes/ResourceFormatLoaderBMFont.xml b/doc/classes/ResourceFormatLoaderBMFont.xml
index 1e999353f8..f5b26a6ff7 100644
--- a/doc/classes/ResourceFormatLoaderBMFont.xml
+++ b/doc/classes/ResourceFormatLoaderBMFont.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderBMFont" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderBMFont" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderBinary.xml b/doc/classes/ResourceFormatLoaderBinary.xml
index 3c768851e2..cf4a2373dc 100644
--- a/doc/classes/ResourceFormatLoaderBinary.xml
+++ b/doc/classes/ResourceFormatLoaderBinary.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderBinary" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderBinary" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderDynamicFont.xml b/doc/classes/ResourceFormatLoaderDynamicFont.xml
index 4cd5c9b2a6..af06ea0d8d 100644
--- a/doc/classes/ResourceFormatLoaderDynamicFont.xml
+++ b/doc/classes/ResourceFormatLoaderDynamicFont.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderDynamicFont" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderDynamicFont" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderGDScript.xml b/doc/classes/ResourceFormatLoaderGDScript.xml
index b661e4746a..5bb9127978 100644
--- a/doc/classes/ResourceFormatLoaderGDScript.xml
+++ b/doc/classes/ResourceFormatLoaderGDScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderGDScript" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderGDScript" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderImage.xml b/doc/classes/ResourceFormatLoaderImage.xml
index 5f7e55af28..de53d2c076 100644
--- a/doc/classes/ResourceFormatLoaderImage.xml
+++ b/doc/classes/ResourceFormatLoaderImage.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderImage" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderImage" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderNativeScript.xml b/doc/classes/ResourceFormatLoaderNativeScript.xml
index 496602e7dd..7355f702b9 100644
--- a/doc/classes/ResourceFormatLoaderNativeScript.xml
+++ b/doc/classes/ResourceFormatLoaderNativeScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderNativeScript" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderNativeScript" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderShader.xml b/doc/classes/ResourceFormatLoaderShader.xml
index 0948810532..1bef7485fb 100644
--- a/doc/classes/ResourceFormatLoaderShader.xml
+++ b/doc/classes/ResourceFormatLoaderShader.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderShader" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderShader" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderStreamTexture.xml b/doc/classes/ResourceFormatLoaderStreamTexture.xml
index 34843f9e1a..4bdc74acbc 100644
--- a/doc/classes/ResourceFormatLoaderStreamTexture.xml
+++ b/doc/classes/ResourceFormatLoaderStreamTexture.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderStreamTexture" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderStreamTexture" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderText.xml b/doc/classes/ResourceFormatLoaderText.xml
index db3b28f233..92ad3179bf 100644
--- a/doc/classes/ResourceFormatLoaderText.xml
+++ b/doc/classes/ResourceFormatLoaderText.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderText" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderText" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderTextureLayered.xml b/doc/classes/ResourceFormatLoaderTextureLayered.xml
index cd31f35e49..69c3eedf63 100644
--- a/doc/classes/ResourceFormatLoaderTextureLayered.xml
+++ b/doc/classes/ResourceFormatLoaderTextureLayered.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderTextureLayered" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderTextureLayered" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderTheora.xml b/doc/classes/ResourceFormatLoaderTheora.xml
index dff7e2f3dc..1b5e30f09c 100644
--- a/doc/classes/ResourceFormatLoaderTheora.xml
+++ b/doc/classes/ResourceFormatLoaderTheora.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderTheora" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderTheora" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatLoaderWebm.xml b/doc/classes/ResourceFormatLoaderWebm.xml
index f2b403161e..a45e5d488d 100644
--- a/doc/classes/ResourceFormatLoaderWebm.xml
+++ b/doc/classes/ResourceFormatLoaderWebm.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderWebm" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderWebm" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatPKM.xml b/doc/classes/ResourceFormatPKM.xml
index aa511823d3..6c442cd934 100644
--- a/doc/classes/ResourceFormatPKM.xml
+++ b/doc/classes/ResourceFormatPKM.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatPKM" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatPKM" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatPVR.xml b/doc/classes/ResourceFormatPVR.xml
index 4f3b4f670f..d82f48f207 100644
--- a/doc/classes/ResourceFormatPVR.xml
+++ b/doc/classes/ResourceFormatPVR.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatPVR" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatPVR" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatSaver.xml b/doc/classes/ResourceFormatSaver.xml
index d50027ef8e..caa05dce26 100644
--- a/doc/classes/ResourceFormatSaver.xml
+++ b/doc/classes/ResourceFormatSaver.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatSaver" inherits="Reference" category="Core" version="3.1">
+<class name="ResourceFormatSaver" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Saves a specific resource type to a file.
 	</brief_description>
 	<description>
-		The engine can save resources when you do it from the editor, or when you call [method ResourceSaver.save]. This is accomplished with multiple [code]ResourceFormatSaver[/code]s, each handling its own format.
+		The engine can save resources when you do it from the editor, or when you call [method ResourceSaver.save]. This is accomplished with multiple [ResourceFormatSaver]s, each handling its own format.
 		By default, Godot saves resources as [code].tres[/code], [code].res[/code] or another built-in format, but you can choose to create your own format by extending this class. You should give it a global class name with [code]class_name[/code] for it to be registered. You may as well implement a [ResourceFormatLoader].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_recognized_extensions" qualifiers="virtual">
 			<return type="PoolStringArray">
@@ -27,7 +25,7 @@
 			<argument index="0" name="resource" type="Resource">
 			</argument>
 			<description>
-				Returns true if the given resource object can be saved by this saver.
+				Returns [code]true[/code] if the given resource object can be saved by this saver.
 			</description>
 		</method>
 		<method name="save" qualifiers="virtual">
diff --git a/doc/classes/ResourceFormatSaverBinary.xml b/doc/classes/ResourceFormatSaverBinary.xml
index 7afec9ba23..32c286d0d9 100644
--- a/doc/classes/ResourceFormatSaverBinary.xml
+++ b/doc/classes/ResourceFormatSaverBinary.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatSaverBinary" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="ResourceFormatSaverBinary" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatSaverGDScript.xml b/doc/classes/ResourceFormatSaverGDScript.xml
index 27964c7c9b..0fe65e28b0 100644
--- a/doc/classes/ResourceFormatSaverGDScript.xml
+++ b/doc/classes/ResourceFormatSaverGDScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatSaverGDScript" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="ResourceFormatSaverGDScript" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatSaverNativeScript.xml b/doc/classes/ResourceFormatSaverNativeScript.xml
index 9f8c0ccc78..7a699a2cca 100644
--- a/doc/classes/ResourceFormatSaverNativeScript.xml
+++ b/doc/classes/ResourceFormatSaverNativeScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatSaverNativeScript" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="ResourceFormatSaverNativeScript" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatSaverShader.xml b/doc/classes/ResourceFormatSaverShader.xml
index cdc512dfea..65ddee42fd 100644
--- a/doc/classes/ResourceFormatSaverShader.xml
+++ b/doc/classes/ResourceFormatSaverShader.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatSaverShader" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="ResourceFormatSaverShader" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceFormatSaverText.xml b/doc/classes/ResourceFormatSaverText.xml
index 6ae4ff4a2c..921de81031 100644
--- a/doc/classes/ResourceFormatSaverText.xml
+++ b/doc/classes/ResourceFormatSaverText.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatSaverText" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="ResourceFormatSaverText" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceImporter.xml b/doc/classes/ResourceImporter.xml
index 09fe828bd3..e0c0aa9a47 100644
--- a/doc/classes/ResourceImporter.xml
+++ b/doc/classes/ResourceImporter.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceImporter" inherits="Reference" category="Core" version="3.1">
+<class name="ResourceImporter" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/ResourceInteractiveLoader.xml b/doc/classes/ResourceInteractiveLoader.xml
index 076121b42d..6b37cb25fb 100644
--- a/doc/classes/ResourceInteractiveLoader.xml
+++ b/doc/classes/ResourceInteractiveLoader.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceInteractiveLoader" inherits="Reference" category="Core" version="3.1">
+<class name="ResourceInteractiveLoader" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Interactive Resource Loader.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_resource">
 			<return type="Resource">
diff --git a/doc/classes/ResourceLoader.xml b/doc/classes/ResourceLoader.xml
index 926bd63de2..70deb4509f 100644
--- a/doc/classes/ResourceLoader.xml
+++ b/doc/classes/ResourceLoader.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceLoader" inherits="Object" category="Core" version="3.1">
+<class name="ResourceLoader" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Resource Loader.
 	</brief_description>
 	<description>
-		Resource Loader. This is a static object accessible as [code]ResourceLoader[/code]. GDScript has a simplified load() function, though.
+		Resource Loader. This is a static object accessible as [ResourceLoader]. GDScript has a simplified load() function, though.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="exists">
 			<return type="bool">
diff --git a/doc/classes/ResourcePreloader.xml b/doc/classes/ResourcePreloader.xml
index 18d6e04d8e..d6c635b6eb 100644
--- a/doc/classes/ResourcePreloader.xml
+++ b/doc/classes/ResourcePreloader.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourcePreloader" inherits="Node" category="Core" version="3.1">
+<class name="ResourcePreloader" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Resource Preloader Node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_resource">
 			<return type="void">
@@ -44,7 +42,7 @@
 			<argument index="0" name="name" type="String">
 			</argument>
 			<description>
-				Returns true if the preloader contains a resource associated to [code]name[/code].
+				Returns [code]true[/code] if the preloader contains a resource associated to [code]name[/code].
 			</description>
 		</method>
 		<method name="remove_resource">
diff --git a/doc/classes/ResourceSaver.xml b/doc/classes/ResourceSaver.xml
index f388667891..eac022f564 100644
--- a/doc/classes/ResourceSaver.xml
+++ b/doc/classes/ResourceSaver.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceSaver" inherits="Object" category="Core" version="3.1">
+<class name="ResourceSaver" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Resource saving interface.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_recognized_extensions">
 			<return type="PoolStringArray">
@@ -27,7 +25,7 @@
 			</argument>
 			<argument index="1" name="resource" type="Resource">
 			</argument>
-			<argument index="2" name="flags" type="int" default="0">
+			<argument index="2" name="flags" type="int" enum="ResourceSaver.SaverFlags" default="0">
 			</argument>
 			<description>
 				Saves a resource to disk.
diff --git a/doc/classes/ResourceSaverPNG.xml b/doc/classes/ResourceSaverPNG.xml
index a161a4de5f..5ed4829f25 100644
--- a/doc/classes/ResourceSaverPNG.xml
+++ b/doc/classes/ResourceSaverPNG.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceSaverPNG" inherits="ResourceFormatSaver" category="Core" version="3.1">
+<class name="ResourceSaverPNG" inherits="ResourceFormatSaver" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/RichTextLabel.xml b/doc/classes/RichTextLabel.xml
index dcfb980e21..c8dd7821a3 100644
--- a/doc/classes/RichTextLabel.xml
+++ b/doc/classes/RichTextLabel.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RichTextLabel" inherits="Control" category="Core" version="3.1">
+<class name="RichTextLabel" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Label that displays rich text.
 	</brief_description>
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/gui/bbcode_in_richtextlabel.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_image">
 			<return type="void">
diff --git a/doc/classes/RigidBody.xml b/doc/classes/RigidBody.xml
index 3c253c3bea..25b896ec3a 100644
--- a/doc/classes/RigidBody.xml
+++ b/doc/classes/RigidBody.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RigidBody" inherits="PhysicsBody" category="Core" version="3.1">
+<class name="RigidBody" inherits="PhysicsBody" category="Core" version="3.2">
 	<brief_description>
 		Physics Body whose position is determined through physics simulation in 3D space.
 	</brief_description>
@@ -12,8 +12,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_integrate_forces" qualifiers="virtual">
 			<return type="void">
diff --git a/doc/classes/RigidBody2D.xml b/doc/classes/RigidBody2D.xml
index 9b74dbedb4..9a1802b515 100644
--- a/doc/classes/RigidBody2D.xml
+++ b/doc/classes/RigidBody2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RigidBody2D" inherits="PhysicsBody2D" category="Core" version="3.1">
+<class name="RigidBody2D" inherits="PhysicsBody2D" category="Core" version="3.2">
 	<brief_description>
 		A body that is controlled by the 2D physics engine.
 	</brief_description>
@@ -7,12 +7,11 @@
 		This node implements simulated 2D physics. You do not control a RigidBody2D directly. Instead you apply forces to it (gravity, impulses, etc.) and the physics simulation calculates the resulting movement based on its mass, friction, and other physical properties.
 		A RigidBody2D has 4 behavior [member mode]s: Rigid, Static, Character, and Kinematic.
 		[b]Note:[/b] You should not change a RigidBody2D's [code]position[/code] or [code]linear_velocity[/code] every frame or even very often. If you need to directly affect the body's state, use [method _integrate_forces], which allows you to directly access the physics state.
-		If you need to override the default physics behavior, you can write a custom force integration. See [member custom_integrator].
+		Please also keep in mind that physics bodies manage their own transform which overwrites the ones you set. So any direct or indirect transformation (including scaling of the node or its parent) will be visible in the editor only, and immediately reset at runtime.
+		If you need to override the default physics behavior or add a transformation at runtime, you can write a custom force integration. See [member custom_integrator].
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_integrate_forces" qualifiers="virtual">
 			<return type="void">
diff --git a/doc/classes/RootMotionView.xml b/doc/classes/RootMotionView.xml
index 97008f05ff..bb939e82f3 100644
--- a/doc/classes/RootMotionView.xml
+++ b/doc/classes/RootMotionView.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RootMotionView" inherits="VisualInstance" category="Core" version="3.1">
+<class name="RootMotionView" inherits="VisualInstance" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/SceneState.xml b/doc/classes/SceneState.xml
index bd2f883cae..34a28b5d1c 100644
--- a/doc/classes/SceneState.xml
+++ b/doc/classes/SceneState.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SceneState" inherits="Reference" category="Core" version="3.1">
+<class name="SceneState" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		A script interface to a scene file's data.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_connection_binds" qualifiers="const">
 			<return type="Array">
diff --git a/doc/classes/SceneTree.xml b/doc/classes/SceneTree.xml
index 7e696badb2..0b1f659da3 100644
--- a/doc/classes/SceneTree.xml
+++ b/doc/classes/SceneTree.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SceneTree" inherits="MainLoop" category="Core" version="3.1">
+<class name="SceneTree" inherits="MainLoop" category="Core" version="3.2">
 	<brief_description>
 		SceneTree manages a hierarchy of nodes.
 	</brief_description>
 	<description>
-		As one of the most important classes, the [code]SceneTree[/code] manages the hierarchy of nodes in a scene as well as scenes themselves. Nodes can be added, retrieved and removed. The whole scene tree (and thus the current scene) can be paused. Scenes can be loaded, switched and reloaded. You can also use the SceneTree to organize your nodes into groups: every node can be assigned as many groups as you want to create, e.g. a "enemy" group. You can then iterate these groups or even call methods and set properties on all the group's members at once.
+		As one of the most important classes, the [SceneTree] manages the hierarchy of nodes in a scene as well as scenes themselves. Nodes can be added, retrieved and removed. The whole scene tree (and thus the current scene) can be paused. Scenes can be loaded, switched and reloaded. You can also use the SceneTree to organize your nodes into groups: every node can be assigned as many groups as you want to create, e.g. a "enemy" group. You can then iterate these groups or even call methods and set properties on all the group's members at once.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/step_by_step/scene_tree.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/viewports/multiple_resolutions.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="call_group" qualifiers="vararg">
 			<return type="Variant">
@@ -63,7 +61,7 @@
 			<argument index="1" name="pause_mode_process" type="bool" default="true">
 			</argument>
 			<description>
-				Returns a [SceneTreeTimer] which will [signal SceneTreeTimer.timeout] after the given time in seconds elapsed in this SceneTree. If [code]pause_mode_process[/code] is set to false, pausing the SceneTree will also pause the timer.
+				Returns a [SceneTreeTimer] which will [signal SceneTreeTimer.timeout] after the given time in seconds elapsed in this SceneTree. If [code]pause_mode_process[/code] is set to [code]false[/code], pausing the SceneTree will also pause the timer.
 				Commonly used to create a one-shot delay timer as in the following example:
 				[codeblock]
 				func some_function():
@@ -77,6 +75,7 @@
 			<return type="int">
 			</return>
 			<description>
+				Returns the current frame, i.e. number of frames since the application started.
 			</description>
 		</method>
 		<method name="get_network_connected_peers" qualifiers="const">
diff --git a/doc/classes/SceneTreeTimer.xml b/doc/classes/SceneTreeTimer.xml
index f58c531ed5..a33f875be2 100644
--- a/doc/classes/SceneTreeTimer.xml
+++ b/doc/classes/SceneTreeTimer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SceneTreeTimer" inherits="Reference" category="Core" version="3.1">
+<class name="SceneTreeTimer" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		One-shot timer.
 	</brief_description>
@@ -15,8 +15,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Script.xml b/doc/classes/Script.xml
index ec1d544c03..fca73e3ea7 100644
--- a/doc/classes/Script.xml
+++ b/doc/classes/Script.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Script" inherits="Resource" category="Core" version="3.1">
+<class name="Script" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A class stored as a resource.
 	</brief_description>
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/step_by_step/scripting.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="can_instance" qualifiers="const">
 			<return type="bool">
diff --git a/doc/classes/ScriptCreateDialog.xml b/doc/classes/ScriptCreateDialog.xml
index 2e24a2626b..b2c2d0f060 100644
--- a/doc/classes/ScriptCreateDialog.xml
+++ b/doc/classes/ScriptCreateDialog.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ScriptCreateDialog" inherits="ConfirmationDialog" category="Core" version="3.1">
+<class name="ScriptCreateDialog" inherits="ConfirmationDialog" category="Core" version="3.2">
 	<brief_description>
 		The Editor's popup dialog for creating new [Script] files.
 	</brief_description>
 	<description>
-		The [code]ScriptCreateDialog[/code] creates script files according to a given template for a given scripting language. The standard use is to configure its fields prior to calling one of the [method Popup.popup] methods.
+		The [ScriptCreateDialog] creates script files according to a given template for a given scripting language. The standard use is to configure its fields prior to calling one of the [method Popup.popup] methods.
 		[codeblock]
 		func _ready():
 		    dialog.config("Node", "res://new_node.gd") # for in-engine types
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="config">
 			<return type="void">
diff --git a/doc/classes/ScriptEditor.xml b/doc/classes/ScriptEditor.xml
index 435ab8aafc..28e1f75ac1 100644
--- a/doc/classes/ScriptEditor.xml
+++ b/doc/classes/ScriptEditor.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ScriptEditor" inherits="PanelContainer" category="Core" version="3.1">
+<class name="ScriptEditor" inherits="PanelContainer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="can_drop_data_fw" qualifiers="const">
 			<return type="bool">
@@ -57,6 +55,15 @@
 				Returns an array with all [Script] objects which are currently open in editor.
 			</description>
 		</method>
+		<method name="goto_line">
+			<return type="void">
+			</return>
+			<argument index="0" name="line_number" type="int">
+			</argument>
+			<description>
+				Goes to the specified line in the current script.
+			</description>
+		</method>
 		<method name="open_script_create_dialog">
 			<return type="void">
 			</return>
diff --git a/doc/classes/ScrollBar.xml b/doc/classes/ScrollBar.xml
index 736b780218..8b8314d2c8 100644
--- a/doc/classes/ScrollBar.xml
+++ b/doc/classes/ScrollBar.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ScrollBar" inherits="Range" category="Core" version="3.1">
+<class name="ScrollBar" inherits="Range" category="Core" version="3.2">
 	<brief_description>
 		Base class for scroll bars.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ScrollContainer.xml b/doc/classes/ScrollContainer.xml
index c8c7fa1d01..7d7dfe167a 100644
--- a/doc/classes/ScrollContainer.xml
+++ b/doc/classes/ScrollContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ScrollContainer" inherits="Container" category="Core" version="3.1">
+<class name="ScrollContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		A helper node for displaying scrollable elements (e.g. lists).
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_h_scrollbar">
 			<return type="HScrollBar">
diff --git a/doc/classes/SegmentShape2D.xml b/doc/classes/SegmentShape2D.xml
index 63afb37a7b..af2392787c 100644
--- a/doc/classes/SegmentShape2D.xml
+++ b/doc/classes/SegmentShape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SegmentShape2D" inherits="Shape2D" category="Core" version="3.1">
+<class name="SegmentShape2D" inherits="Shape2D" category="Core" version="3.2">
 	<brief_description>
 		Segment shape for 2D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Semaphore.xml b/doc/classes/Semaphore.xml
index 5f46b949aa..dadb445d4b 100644
--- a/doc/classes/Semaphore.xml
+++ b/doc/classes/Semaphore.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Semaphore" inherits="Reference" category="Core" version="3.1">
+<class name="Semaphore" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		A synchronization Semaphore.
 	</brief_description>
@@ -8,21 +8,19 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="post">
 			<return type="int" enum="Error">
 			</return>
 			<description>
-				Lowers the [code]Semaphore[/code], allowing one more thread in. Returns [code]OK[/code] on success, [code]ERR_BUSY[/code] otherwise.
+				Lowers the [Semaphore], allowing one more thread in. Returns [code]OK[/code] on success, [code]ERR_BUSY[/code] otherwise.
 			</description>
 		</method>
 		<method name="wait">
 			<return type="int" enum="Error">
 			</return>
 			<description>
-				Tries to wait for the [code]Semaphore[/code], if its value is zero, blocks until non-zero. Returns [code]OK[/code] on success, [code]ERR_BUSY[/code] otherwise.
+				Tries to wait for the [Semaphore], if its value is zero, blocks until non-zero. Returns [code]OK[/code] on success, [code]ERR_BUSY[/code] otherwise.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/Separator.xml b/doc/classes/Separator.xml
index e5efa4a100..11f6f1b22f 100644
--- a/doc/classes/Separator.xml
+++ b/doc/classes/Separator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Separator" inherits="Control" category="Core" version="3.1">
+<class name="Separator" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Base class for separators.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Shader.xml b/doc/classes/Shader.xml
index dd6a023af4..668fb6bafa 100644
--- a/doc/classes/Shader.xml
+++ b/doc/classes/Shader.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Shader" inherits="Resource" category="Core" version="3.1">
+<class name="Shader" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A custom shader program.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/shading/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_default_texture_param" qualifiers="const">
 			<return type="Texture">
diff --git a/doc/classes/ShaderMaterial.xml b/doc/classes/ShaderMaterial.xml
index 9b15c6e8b4..ef355c4417 100644
--- a/doc/classes/ShaderMaterial.xml
+++ b/doc/classes/ShaderMaterial.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ShaderMaterial" inherits="Material" category="Core" version="3.1">
+<class name="ShaderMaterial" inherits="Material" category="Core" version="3.2">
 	<brief_description>
 		A material that uses a custom [Shader] program.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/shading/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_shader_param" qualifiers="const">
 			<return type="Variant">
diff --git a/doc/classes/Shape.xml b/doc/classes/Shape.xml
index 6e51d3156f..d622ff1cf2 100644
--- a/doc/classes/Shape.xml
+++ b/doc/classes/Shape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Shape" inherits="Resource" category="Core" version="3.1">
+<class name="Shape" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Base class for all 3D shape resources.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Shape2D.xml b/doc/classes/Shape2D.xml
index fc773faf5e..dec3c2b43c 100644
--- a/doc/classes/Shape2D.xml
+++ b/doc/classes/Shape2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Shape2D" inherits="Resource" category="Core" version="3.1">
+<class name="Shape2D" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Base class for all 2D Shapes.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="collide">
 			<return type="bool">
diff --git a/doc/classes/ShortCut.xml b/doc/classes/ShortCut.xml
index b3bb364e54..4c5dc0e77b 100644
--- a/doc/classes/ShortCut.xml
+++ b/doc/classes/ShortCut.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ShortCut" inherits="Resource" category="Core" version="3.1">
+<class name="ShortCut" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A shortcut for binding input.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_as_text" qualifiers="const">
 			<return type="String">
diff --git a/doc/classes/Skeleton.xml b/doc/classes/Skeleton.xml
index f07329f31f..8fab778a48 100644
--- a/doc/classes/Skeleton.xml
+++ b/doc/classes/Skeleton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Skeleton" inherits="Spatial" category="Core" version="3.1">
+<class name="Skeleton" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Skeleton for characters and animated objects.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_bone">
 			<return type="void">
@@ -136,6 +134,12 @@
 			<description>
 			</description>
 		</method>
+		<method name="localize_rests">
+			<return type="void">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="physical_bones_add_collision_exception">
 			<return type="void">
 			</return>
diff --git a/doc/classes/Skeleton2D.xml b/doc/classes/Skeleton2D.xml
index 258525c396..064a7266bd 100644
--- a/doc/classes/Skeleton2D.xml
+++ b/doc/classes/Skeleton2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Skeleton2D" inherits="Node2D" category="Core" version="3.1">
+<class name="Skeleton2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
@@ -7,8 +7,6 @@
 	<tutorials>
 		<link>http://docs.godotengine.org/en/latest/tutorials/animation/2d_skeletons.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_bone">
 			<return type="Bone2D">
diff --git a/doc/classes/SkeletonIK.xml b/doc/classes/SkeletonIK.xml
index e720ff8f52..42c7759c1f 100644
--- a/doc/classes/SkeletonIK.xml
+++ b/doc/classes/SkeletonIK.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SkeletonIK" inherits="Node" category="Core" version="3.1">
+<class name="SkeletonIK" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_parent_skeleton" qualifiers="const">
 			<return type="Skeleton">
diff --git a/doc/classes/Sky.xml b/doc/classes/Sky.xml
index 245da99084..ffd8c3fdee 100644
--- a/doc/classes/Sky.xml
+++ b/doc/classes/Sky.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Sky" inherits="Resource" category="Core" version="3.1">
+<class name="Sky" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		The base class for [PanoramaSky] and [ProceduralSky].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/Slider.xml b/doc/classes/Slider.xml
index 1e6ed65b48..8fdf2bc848 100644
--- a/doc/classes/Slider.xml
+++ b/doc/classes/Slider.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Slider" inherits="Range" category="Core" version="3.1">
+<class name="Slider" inherits="Range" category="Core" version="3.2">
 	<brief_description>
 		Base class for GUI Sliders.
 	</brief_description>
@@ -8,20 +8,22 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="editable" type="bool" setter="set_editable" getter="is_editable">
+			If [code]true[/code], the slider can be interacted with. If [code]false[/code], the value can be changed only by code.
 		</member>
 		<member name="focus_mode" type="int" setter="set_focus_mode" getter="get_focus_mode" enum="Control.FocusMode">
 		</member>
 		<member name="scrollable" type="bool" setter="set_scrollable" getter="is_scrollable">
+			If [code]true[/code], the value can be changed using the mouse wheel.
 		</member>
 		<member name="tick_count" type="int" setter="set_ticks" getter="get_ticks">
+			Number of ticks displayed on the slider, including border ticks. Ticks are uniformly-distributed value markers.
 		</member>
 		<member name="ticks_on_borders" type="bool" setter="set_ticks_on_borders" getter="get_ticks_on_borders">
+			If [code]true[/code], the slider will display ticks for minimum and maximum values.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/SliderJoint.xml b/doc/classes/SliderJoint.xml
index b3d59d6b75..997930eaa3 100644
--- a/doc/classes/SliderJoint.xml
+++ b/doc/classes/SliderJoint.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SliderJoint" inherits="Joint" category="Core" version="3.1">
+<class name="SliderJoint" inherits="Joint" category="Core" version="3.2">
 	<brief_description>
 		Piston kind of slider between two bodies in 3D.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/SoftBody.xml b/doc/classes/SoftBody.xml
index 6c3929d65b..b235a26ad7 100644
--- a/doc/classes/SoftBody.xml
+++ b/doc/classes/SoftBody.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SoftBody" inherits="MeshInstance" category="Core" version="3.1">
+<class name="SoftBody" inherits="MeshInstance" category="Core" version="3.2">
 	<brief_description>
 		A soft mesh physics body.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_collision_exception_with">
 			<return type="void">
diff --git a/doc/classes/Spatial.xml b/doc/classes/Spatial.xml
index 518a942cc2..9d1761ba9f 100644
--- a/doc/classes/Spatial.xml
+++ b/doc/classes/Spatial.xml
@@ -1,17 +1,15 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Spatial" inherits="Node" category="Core" version="3.1">
+<class name="Spatial" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Most basic 3D game object, parent of all 3D related nodes.
 	</brief_description>
 	<description>
-		Most basic 3D game object, with a 3D [Transform] and visibility settings. All other 3D game objects inherit from Spatial. Use [code]Spatial[/code] as a parent node to move, scale, rotate and show/hide children in a 3D project.
-		Affine operations (rotate, scale, translate) happen in parent's local coordinate system, unless the [code]Spatial[/code] object is set as top level. Affine operations in this coordinate system correspond to direct affine operations on the [code]Spatial[/code]'s transform. The word local below refers to this coordinate system. The coordinate system that is attached to the [code]Spatial[/code] object itself is referred to as object-local coordinate system.
+		Most basic 3D game object, with a 3D [Transform] and visibility settings. All other 3D game objects inherit from Spatial. Use [Spatial] as a parent node to move, scale, rotate and show/hide children in a 3D project.
+		Affine operations (rotate, scale, translate) happen in parent's local coordinate system, unless the [Spatial] object is set as top level. Affine operations in this coordinate system correspond to direct affine operations on the [Spatial]'s transform. The word local below refers to this coordinate system. The coordinate system that is attached to the [Spatial] object itself is referred to as object-local coordinate system.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/introduction_to_3d.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="force_update_transform">
 			<return type="void">
@@ -23,14 +21,14 @@
 			<return type="Spatial">
 			</return>
 			<description>
-				Returns the parent [code]Spatial[/code], or an empty [Object] if no parent exists or parent is not of type [code]Spatial[/code].
+				Returns the parent [Spatial], or an empty [Object] if no parent exists or parent is not of type [Spatial].
 			</description>
 		</method>
 		<method name="get_world" qualifiers="const">
 			<return type="World">
 			</return>
 			<description>
-				Returns the current [World] resource this [code]Spatial[/code] node is registered to.
+				Returns the current [World] resource this [Spatial] node is registered to.
 			</description>
 		</method>
 		<method name="global_rotate">
@@ -72,7 +70,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns whether node notifies about its local transformation changes. [code]Spatial[/code] will not propagate this by default.
+				Returns whether node notifies about its local transformation changes. [Spatial] will not propagate this by default.
 			</description>
 		</method>
 		<method name="is_scale_disabled" qualifiers="const">
@@ -92,7 +90,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns whether the node notifies about its global and local transformation changes. [code]Spatial[/code] will not propagate this by default.
+				Returns whether the node notifies about its global and local transformation changes. [Spatial] will not propagate this by default.
 			</description>
 		</method>
 		<method name="is_visible_in_tree" qualifiers="const">
@@ -232,7 +230,7 @@
 			<argument index="0" name="enable" type="bool">
 			</argument>
 			<description>
-				Set whether the node notifies about its local transformation changes. [code]Spatial[/code] will not propagate this by default.
+				Set whether the node notifies about its local transformation changes. [Spatial] will not propagate this by default.
 			</description>
 		</method>
 		<method name="set_notify_transform">
@@ -241,7 +239,7 @@
 			<argument index="0" name="enable" type="bool">
 			</argument>
 			<description>
-				Set whether the node notifies about its global and local transformation changes. [code]Spatial[/code] will not propagate this by default.
+				Set whether the node notifies about its global and local transformation changes. [Spatial] will not propagate this by default.
 			</description>
 		</method>
 		<method name="show">
@@ -329,7 +327,7 @@
 		</signal>
 	</signals>
 	<constants>
-		<constant name="NOTIFICATION_TRANSFORM_CHANGED" value="29">
+		<constant name="NOTIFICATION_TRANSFORM_CHANGED" value="2000">
 			Spatial nodes receives this notification when their global transform changes. This means that either the current or a parent node changed its transform.
 			In order for [code]NOTIFICATION_TRANSFORM_CHANGED[/code] to work, users first need to ask for it, with [method set_notify_transform].
 		</constant>
diff --git a/doc/classes/SpatialGizmo.xml b/doc/classes/SpatialGizmo.xml
index 68d1d03296..5cca1883b3 100644
--- a/doc/classes/SpatialGizmo.xml
+++ b/doc/classes/SpatialGizmo.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpatialGizmo" inherits="Reference" category="Core" version="3.1">
+<class name="SpatialGizmo" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/SpatialMaterial.xml b/doc/classes/SpatialMaterial.xml
index 62a34821fe..8e93160af9 100644
--- a/doc/classes/SpatialMaterial.xml
+++ b/doc/classes/SpatialMaterial.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpatialMaterial" inherits="Material" category="Core" version="3.1">
+<class name="SpatialMaterial" inherits="Material" category="Core" version="3.2">
 	<brief_description>
 		Default 3D rendering material.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/spatial_material.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/SpatialVelocityTracker.xml b/doc/classes/SpatialVelocityTracker.xml
index 45cc4232dc..45dd06e926 100644
--- a/doc/classes/SpatialVelocityTracker.xml
+++ b/doc/classes/SpatialVelocityTracker.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpatialVelocityTracker" inherits="Reference" category="Core" version="3.1">
+<class name="SpatialVelocityTracker" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_tracked_linear_velocity" qualifiers="const">
 			<return type="Vector3">
diff --git a/doc/classes/SphereMesh.xml b/doc/classes/SphereMesh.xml
index e0e2d10408..0124d8a4b0 100644
--- a/doc/classes/SphereMesh.xml
+++ b/doc/classes/SphereMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SphereMesh" inherits="PrimitiveMesh" category="Core" version="3.1">
+<class name="SphereMesh" inherits="PrimitiveMesh" category="Core" version="3.2">
 	<brief_description>
 		Class representing a spherical [PrimitiveMesh].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -17,7 +15,7 @@
 			Full height of the sphere. Defaults to 2.0.
 		</member>
 		<member name="is_hemisphere" type="bool" setter="set_is_hemisphere" getter="get_is_hemisphere">
-			Determines whether a full sphere or a hemisphere is created. Attention: To get a regular hemisphere the height and radius of the sphere have to equal. Defaults to false.
+			Determines whether a full sphere or a hemisphere is created. Attention: To get a regular hemisphere the height and radius of the sphere have to equal. Defaults to [code]false[/code].
 		</member>
 		<member name="radial_segments" type="int" setter="set_radial_segments" getter="get_radial_segments">
 			Number of radial segments on the sphere. Defaults to 64.
diff --git a/doc/classes/SphereShape.xml b/doc/classes/SphereShape.xml
index bc0cd79ddd..21309ae83e 100644
--- a/doc/classes/SphereShape.xml
+++ b/doc/classes/SphereShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SphereShape" inherits="Shape" category="Core" version="3.1">
+<class name="SphereShape" inherits="Shape" category="Core" version="3.2">
 	<brief_description>
 		Sphere shape for 3D collisions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/SpinBox.xml b/doc/classes/SpinBox.xml
index 5087cf355a..8e2e2f1baa 100644
--- a/doc/classes/SpinBox.xml
+++ b/doc/classes/SpinBox.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpinBox" inherits="Range" category="Core" version="3.1">
+<class name="SpinBox" inherits="Range" category="Core" version="3.2">
 	<brief_description>
 		Numerical input text field.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_line_edit">
 			<return type="LineEdit">
diff --git a/doc/classes/SplitContainer.xml b/doc/classes/SplitContainer.xml
index 6370c40aba..5d9a233624 100644
--- a/doc/classes/SplitContainer.xml
+++ b/doc/classes/SplitContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SplitContainer" inherits="Container" category="Core" version="3.1">
+<class name="SplitContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Container for splitting and adjusting.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clamp_split_offset">
 			<return type="void">
diff --git a/doc/classes/SpotLight.xml b/doc/classes/SpotLight.xml
index 56ba2fc5b9..7369189c72 100644
--- a/doc/classes/SpotLight.xml
+++ b/doc/classes/SpotLight.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpotLight" inherits="Light" category="Core" version="3.1">
+<class name="SpotLight" inherits="Light" category="Core" version="3.2">
 	<brief_description>
 		Spotlight [Light], such as a reflector spotlight or a lantern.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/lights_and_shadows.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/SpringArm.xml b/doc/classes/SpringArm.xml
index 198ff4a81d..50c6fef148 100644
--- a/doc/classes/SpringArm.xml
+++ b/doc/classes/SpringArm.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpringArm" inherits="Spatial" category="Core" version="3.1">
+<class name="SpringArm" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_excluded_object">
 			<return type="void">
diff --git a/doc/classes/Sprite.xml b/doc/classes/Sprite.xml
index d1cdbffc6c..cc5fe93567 100644
--- a/doc/classes/Sprite.xml
+++ b/doc/classes/Sprite.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Sprite" inherits="Node2D" category="Core" version="3.1">
+<class name="Sprite" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		General purpose Sprite node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_rect" qualifiers="const">
 			<return type="Rect2">
diff --git a/doc/classes/Sprite3D.xml b/doc/classes/Sprite3D.xml
index f43fa34785..81fe182782 100644
--- a/doc/classes/Sprite3D.xml
+++ b/doc/classes/Sprite3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Sprite3D" inherits="SpriteBase3D" category="Core" version="3.1">
+<class name="Sprite3D" inherits="SpriteBase3D" category="Core" version="3.2">
 	<brief_description>
 		2D Sprite node in 3D world.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/SpriteBase3D.xml b/doc/classes/SpriteBase3D.xml
index 12d58808d5..50e00fe333 100644
--- a/doc/classes/SpriteBase3D.xml
+++ b/doc/classes/SpriteBase3D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpriteBase3D" inherits="GeometryInstance" category="Core" version="3.1">
+<class name="SpriteBase3D" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 		2D Sprite node in 3D environment.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="generate_triangle_mesh" qualifiers="const">
 			<return type="TriangleMesh">
diff --git a/doc/classes/SpriteFrames.xml b/doc/classes/SpriteFrames.xml
index e261b2112f..f28192519e 100644
--- a/doc/classes/SpriteFrames.xml
+++ b/doc/classes/SpriteFrames.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SpriteFrames" inherits="Resource" category="Core" version="3.1">
+<class name="SpriteFrames" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Sprite frame library for AnimatedSprite.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_animation">
 			<return type="void">
diff --git a/doc/classes/StaticBody.xml b/doc/classes/StaticBody.xml
index 01f5b07329..d2b7abebb1 100644
--- a/doc/classes/StaticBody.xml
+++ b/doc/classes/StaticBody.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StaticBody" inherits="PhysicsBody" category="Core" version="3.1">
+<class name="StaticBody" inherits="PhysicsBody" category="Core" version="3.2">
 	<brief_description>
 		Static body for 3D physics.
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/StaticBody2D.xml b/doc/classes/StaticBody2D.xml
index 917773d502..98b38e9e26 100644
--- a/doc/classes/StaticBody2D.xml
+++ b/doc/classes/StaticBody2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StaticBody2D" inherits="PhysicsBody2D" category="Core" version="3.1">
+<class name="StaticBody2D" inherits="PhysicsBody2D" category="Core" version="3.2">
 	<brief_description>
 		Static body for 2D Physics.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/StreamPeer.xml b/doc/classes/StreamPeer.xml
index 74ac8a79c0..af8e43944c 100644
--- a/doc/classes/StreamPeer.xml
+++ b/doc/classes/StreamPeer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StreamPeer" inherits="Reference" category="Core" version="3.1">
+<class name="StreamPeer" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Abstraction and base class for stream-based protocols.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_16">
 			<return type="int">
@@ -43,7 +41,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Return the amount of bytes this [code]StreamPeer[/code] has available.
+				Return the amount of bytes this [StreamPeer] has available.
 			</description>
 		</method>
 		<method name="get_data">
@@ -127,8 +125,11 @@
 		<method name="get_var">
 			<return type="Variant">
 			</return>
+			<argument index="0" name="allow_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Get a Variant from the stream.
+				Get a Variant from the stream. When [code]allow_objects[/code] is [code]true[/code] decoding objects is allowed.
+				[b]WARNING:[/b] Deserialized object can contain code which gets executed. Do not use this option if the serialized object comes from untrusted sources to avoid potential security threats (remote code execution).
 			</description>
 		</method>
 		<method name="put_16">
@@ -262,14 +263,16 @@
 			</return>
 			<argument index="0" name="value" type="Variant">
 			</argument>
+			<argument index="1" name="full_objects" type="bool" default="false">
+			</argument>
 			<description>
-				Put a Variant into the stream.
+				Put a Variant into the stream. When [code]full_objects[/code] is [code]true[/code] encoding objects is allowed (and can potentially include code).
 			</description>
 		</method>
 	</methods>
 	<members>
 		<member name="big_endian" type="bool" setter="set_big_endian" getter="is_big_endian_enabled">
-			If [code]true[/code], this [code]StreamPeer[/code] will using big-endian format for encoding and decoding.
+			If [code]true[/code], this [StreamPeer] will using big-endian format for encoding and decoding.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/StreamPeerBuffer.xml b/doc/classes/StreamPeerBuffer.xml
index 3d9bdce762..de4603b7c0 100644
--- a/doc/classes/StreamPeerBuffer.xml
+++ b/doc/classes/StreamPeerBuffer.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StreamPeerBuffer" inherits="StreamPeer" category="Core" version="3.1">
+<class name="StreamPeerBuffer" inherits="StreamPeer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
diff --git a/doc/classes/StreamPeerSSL.xml b/doc/classes/StreamPeerSSL.xml
index 40a4e04a80..f7fd36ed58 100644
--- a/doc/classes/StreamPeerSSL.xml
+++ b/doc/classes/StreamPeerSSL.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StreamPeerSSL" inherits="StreamPeer" category="Core" version="3.1">
+<class name="StreamPeerSSL" inherits="StreamPeer" category="Core" version="3.2">
 	<brief_description>
 		SSL Stream peer.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/networking/ssl_certificates.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="accept_stream">
 			<return type="int" enum="Error">
@@ -30,7 +28,7 @@
 			<argument index="2" name="for_hostname" type="String" default="&quot;&quot;">
 			</argument>
 			<description>
-				Connect to a peer using an underlying [StreamPeer] "stream", when "validate_certs" is true, [code]StreamPeerSSL[/code] will validate that the certificate presented by the peer matches the "for_hostname".
+				Connect to a peer using an underlying [StreamPeer] "stream", when "validate_certs" is [code]true[/code], [StreamPeerSSL] will validate that the certificate presented by the peer matches the "for_hostname".
 			</description>
 		</method>
 		<method name="disconnect_from_stream">
@@ -61,12 +59,12 @@
 	</members>
 	<constants>
 		<constant name="STATUS_DISCONNECTED" value="0" enum="Status">
-			A status representing a [code]StreamPeerSSL[/code] that is disconnected.
+			A status representing a [StreamPeerSSL] that is disconnected.
 		</constant>
 		<constant name="STATUS_HANDSHAKING" value="1" enum="Status">
 		</constant>
 		<constant name="STATUS_CONNECTED" value="2" enum="Status">
-			A status representing a [code]StreamPeerSSL[/code] that is connected to a host.
+			A status representing a [StreamPeerSSL] that is connected to a host.
 		</constant>
 		<constant name="STATUS_ERROR" value="3" enum="Status">
 		</constant>
diff --git a/doc/classes/StreamPeerTCP.xml b/doc/classes/StreamPeerTCP.xml
index 18324d9043..16bf69110d 100644
--- a/doc/classes/StreamPeerTCP.xml
+++ b/doc/classes/StreamPeerTCP.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StreamPeerTCP" inherits="StreamPeer" category="Core" version="3.1">
+<class name="StreamPeerTCP" inherits="StreamPeer" category="Core" version="3.2">
 	<brief_description>
 		TCP Stream peer.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="connect_to_host">
 			<return type="int" enum="Error">
@@ -70,16 +68,16 @@
 	</methods>
 	<constants>
 		<constant name="STATUS_NONE" value="0" enum="Status">
-			The initial status of the [code]StreamPeerTCP[/code], also the status after a disconnect.
+			The initial status of the [StreamPeerTCP], also the status after a disconnect.
 		</constant>
 		<constant name="STATUS_CONNECTING" value="1" enum="Status">
-			A status representing a [code]StreamPeerTCP[/code] that is connecting to a host.
+			A status representing a [StreamPeerTCP] that is connecting to a host.
 		</constant>
 		<constant name="STATUS_CONNECTED" value="2" enum="Status">
-			A status representing a [code]StreamPeerTCP[/code] that is connected to a host.
+			A status representing a [StreamPeerTCP] that is connected to a host.
 		</constant>
 		<constant name="STATUS_ERROR" value="3" enum="Status">
-			A status representing a [code]StreamPeerTCP[/code] in error state.
+			A status representing a [StreamPeerTCP] in error state.
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/StreamTexture.xml b/doc/classes/StreamTexture.xml
index 3b44d0f00f..1ff2500d1a 100644
--- a/doc/classes/StreamTexture.xml
+++ b/doc/classes/StreamTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StreamTexture" inherits="Texture" category="Core" version="3.1">
+<class name="StreamTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		A .stex texture.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/String.xml b/doc/classes/String.xml
index 6ac47a89c2..526a9427dc 100644
--- a/doc/classes/String.xml
+++ b/doc/classes/String.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="String" category="Built-In Types" version="3.1">
+<class name="String" category="Built-In Types" version="3.2">
 	<brief_description>
 		Built-in string class.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="String">
 			<return type="String">
@@ -432,6 +430,14 @@
 				Returns [code]true[/code] if this string is a subsequence of the given string, without considering case.
 			</description>
 		</method>
+		<method name="is_valid_filename">
+			<return type="bool">
+			</return>
+			<description>
+				Returns [code]true[/code] if this string is free from characters that aren't allowed in file names, those being:
+				[code]: / \ ? * " | % &lt; &gt;[/code]
+			</description>
+		</method>
 		<method name="is_valid_float">
 			<return type="bool">
 			</return>
diff --git a/doc/classes/StyleBox.xml b/doc/classes/StyleBox.xml
index d8cc56cc8c..40cb2632b6 100644
--- a/doc/classes/StyleBox.xml
+++ b/doc/classes/StyleBox.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StyleBox" inherits="Resource" category="Core" version="3.1">
+<class name="StyleBox" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Base class for drawing stylized boxes for the UI.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="draw" qualifiers="const">
 			<return type="void">
diff --git a/doc/classes/StyleBoxEmpty.xml b/doc/classes/StyleBoxEmpty.xml
index a9eeeddd93..9dc8569b75 100644
--- a/doc/classes/StyleBoxEmpty.xml
+++ b/doc/classes/StyleBoxEmpty.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StyleBoxEmpty" inherits="StyleBox" category="Core" version="3.1">
+<class name="StyleBoxEmpty" inherits="StyleBox" category="Core" version="3.2">
 	<brief_description>
 		Empty stylebox (does not display anything).
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/StyleBoxFlat.xml b/doc/classes/StyleBoxFlat.xml
index a162aa02b0..ffee7366a3 100644
--- a/doc/classes/StyleBoxFlat.xml
+++ b/doc/classes/StyleBoxFlat.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StyleBoxFlat" inherits="StyleBox" category="Core" version="3.1">
+<class name="StyleBoxFlat" inherits="StyleBox" category="Core" version="3.2">
 	<brief_description>
 		Customizable Stylebox with a given set of parameters. (no texture required)
 	</brief_description>
@@ -23,8 +23,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_border_width_min" qualifiers="const">
 			<return type="int">
@@ -96,7 +94,7 @@
 			The background color of the stylebox.
 		</member>
 		<member name="border_blend" type="bool" setter="set_border_blend" getter="get_border_blend">
-			When set to true, the border will fade into the background color.
+			When set to [code]true[/code], the border will fade into the background color.
 		</member>
 		<member name="border_color" type="Color" setter="set_border_color" getter="get_border_color">
 			Sets the color of the border.
@@ -148,6 +146,9 @@
 		<member name="shadow_color" type="Color" setter="set_shadow_color" getter="get_shadow_color">
 			The color of the shadow. (This has no effect when shadow_size &lt; 1)
 		</member>
+		<member name="shadow_offset" type="Vector2" setter="set_shadow_offset" getter="get_shadow_offset">
+			The shadow offset in pixels. Adjusts the position of the shadow relatively to the stylebox.
+		</member>
 		<member name="shadow_size" type="int" setter="set_shadow_size" getter="get_shadow_size">
 			The shadow size in pixels.
 		</member>
diff --git a/doc/classes/StyleBoxLine.xml b/doc/classes/StyleBoxLine.xml
index 146b4b0a3d..aa306291c8 100644
--- a/doc/classes/StyleBoxLine.xml
+++ b/doc/classes/StyleBoxLine.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StyleBoxLine" inherits="StyleBox" category="Core" version="3.1">
+<class name="StyleBoxLine" inherits="StyleBox" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/StyleBoxTexture.xml b/doc/classes/StyleBoxTexture.xml
index 806ed1941a..8e55795053 100644
--- a/doc/classes/StyleBoxTexture.xml
+++ b/doc/classes/StyleBoxTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StyleBoxTexture" inherits="StyleBox" category="Core" version="3.1">
+<class name="StyleBoxTexture" inherits="StyleBox" category="Core" version="3.2">
 	<brief_description>
 		Texture Based 3x3 scale style.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="set_expand_margin_all">
 			<return type="void">
diff --git a/doc/classes/SurfaceTool.xml b/doc/classes/SurfaceTool.xml
index 587b0190fe..25188a80db 100644
--- a/doc/classes/SurfaceTool.xml
+++ b/doc/classes/SurfaceTool.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="SurfaceTool" inherits="Reference" category="Core" version="3.1">
+<class name="SurfaceTool" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Helper tool to create geometry.
 	</brief_description>
 	<description>
-		The [code]SurfaceTool[/code] is used to construct a [Mesh] by specifying vertex attributes individually. It can be used to construct a [Mesh] from script. All properties except index need to be added before a call to [method add_vertex]. For example adding vertex colors and UVs looks like
+		The [SurfaceTool] is used to construct a [Mesh] by specifying vertex attributes individually. It can be used to construct a [Mesh] from script. All properties except index need to be added before a call to [method add_vertex]. For example adding vertex colors and UVs looks like
 		[codeblock]
 		var st = SurfaceTool.new()
 		st.begin(Mesh.PRIMITIVE_TRIANGLES)
@@ -12,14 +12,12 @@
 		st.add_uv(Vector2(0, 0))
 		st.add_vertex(Vector3(0, 0, 0))
 		[/codeblock]
-		The [code]SurfaceTool[/code] now contains one vertex of a triangle which has a UV coordinate and a specified [Color]. If another vertex were added without calls to [method add_uv] or [method add_color] then the last values would be used.
+		The [SurfaceTool] now contains one vertex of a triangle which has a UV coordinate and a specified [Color]. If another vertex were added without calls to [method add_uv] or [method add_color] then the last values would be used.
 		It is very important that vertex attributes are passed [b]before[/b] the call to [method add_vertex], failure to do this will result in an error when committing the vertex information to a mesh.
 		Additionally, the attributes used before the first vertex is added determine the format of the mesh. For example if you only add UVs to the first vertex, you cannot add color to any of the subsequent vertices.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_bones">
 			<return type="void">
diff --git a/doc/classes/TCP_Server.xml b/doc/classes/TCP_Server.xml
index 4e3544ce5c..ac9b33bc34 100644
--- a/doc/classes/TCP_Server.xml
+++ b/doc/classes/TCP_Server.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TCP_Server" inherits="Reference" category="Core" version="3.1">
+<class name="TCP_Server" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		TCP Server.
 	</brief_description>
@@ -8,14 +8,12 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_connection_available" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
-				Return true if a connection is available for taking.
+				Return [code]true[/code] if a connection is available for taking.
 			</description>
 		</method>
 		<method name="listen">
diff --git a/doc/classes/TabContainer.xml b/doc/classes/TabContainer.xml
index 3c5bc25def..06299d65b6 100644
--- a/doc/classes/TabContainer.xml
+++ b/doc/classes/TabContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TabContainer" inherits="Container" category="Core" version="3.1">
+<class name="TabContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Tabbed Container.
 	</brief_description>
@@ -7,12 +7,10 @@
 		Sets the active tab's [code]visible[/code] property to the value [code]true[/code]. Sets all other children's to [code]false[/code].
 		Ignores non-[Control] children.
 		Individual tabs are always visible unless you use [method set_tab_disabled] and [method set_tab_title] to hide it.
-		To hide only a tab's content, nest the content inside a child [Control], so it receives the [code]TabContainer[/code]'s visibility setting instead.
+		To hide only a tab's content, nest the content inside a child [Control], so it receives the [TabContainer]'s visibility setting instead.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_current_tab_control" qualifiers="const">
 			<return type="Control">
@@ -82,7 +80,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Returns the [code]TabContainer[/code] rearrange group id.
+				Returns the [TabContainer] rearrange group id.
 			</description>
 		</method>
 		<method name="set_popup">
@@ -91,7 +89,7 @@
 			<argument index="0" name="popup" type="Node">
 			</argument>
 			<description>
-				If set on a [Popup] node instance, a popup menu icon appears in the top-right corner of the [code]TabContainer[/code]. Clicking it will expand the [Popup] node.
+				If set on a [Popup] node instance, a popup menu icon appears in the top-right corner of the [TabContainer]. Clicking it will expand the [Popup] node.
 			</description>
 		</method>
 		<method name="set_tab_disabled">
@@ -102,7 +100,7 @@
 			<argument index="1" name="disabled" type="bool">
 			</argument>
 			<description>
-				If [code]disabled[/code] is false, hides the tab at index [code]tab_idx[/code]. Note that its title text will remain, unless also removed with [method set_tab_title].
+				If [code]disabled[/code] is [code]false[/code], hides the tab at index [code]tab_idx[/code]. Note that its title text will remain, unless also removed with [method set_tab_title].
 			</description>
 		</method>
 		<method name="set_tab_icon">
@@ -133,7 +131,7 @@
 			<argument index="0" name="group_id" type="int">
 			</argument>
 			<description>
-				Defines rearrange group id, choose for each [code]TabContainer[/code] the same value to enable tab drag between [code]TabContainer[/code]. Enable drag with [code]set_drag_to_rearrange_enabled(true)[/code].
+				Defines rearrange group id, choose for each [TabContainer] the same value to enable tab drag between [TabContainer]. Enable drag with [code]set_drag_to_rearrange_enabled(true)[/code].
 			</description>
 		</method>
 	</methods>
@@ -154,7 +152,7 @@
 	<signals>
 		<signal name="pre_popup_pressed">
 			<description>
-				Emitted when the [code]TabContainer[/code]'s [Popup] button is clicked. See [method set_popup] for details.
+				Emitted when the [TabContainer]'s [Popup] button is clicked. See [method set_popup] for details.
 			</description>
 		</signal>
 		<signal name="tab_changed">
diff --git a/doc/classes/Tabs.xml b/doc/classes/Tabs.xml
index b22d9d73da..8c7d657b4a 100644
--- a/doc/classes/Tabs.xml
+++ b/doc/classes/Tabs.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Tabs" inherits="Control" category="Core" version="3.1">
+<class name="Tabs" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Tabs Control.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_tab">
 			<return type="void">
@@ -97,7 +95,7 @@
 			<return type="int">
 			</return>
 			<description>
-				Returns the [code]Tabs[/code] rearrange group id.
+				Returns the [Tabs] rearrange group id.
 			</description>
 		</method>
 		<method name="move_tab">
@@ -137,7 +135,7 @@
 			<argument index="1" name="disabled" type="bool">
 			</argument>
 			<description>
-				If [code]disabled[/code] is false, hides the tab at index [code]tab_idx[/code]. Note that its title text will remain, unless also removed with [method set_tab_title].
+				If [code]disabled[/code] is [code]false[/code], hides the tab at index [code]tab_idx[/code]. Note that its title text will remain, unless also removed with [method set_tab_title].
 			</description>
 		</method>
 		<method name="set_tab_icon">
@@ -168,7 +166,7 @@
 			<argument index="0" name="group_id" type="int">
 			</argument>
 			<description>
-				Defines rearrange group id, choose for each [code]Tabs[/code] the same value to enable tab drag between [code]Tabs[/code]. Enable drag with [code]set_drag_to_rearrange_enabled(true)[/code].
+				Defines rearrange group id, choose for each [Tabs] the same value to enable tab drag between [Tabs]. Enable drag with [code]set_drag_to_rearrange_enabled(true)[/code].
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/TextEdit.xml b/doc/classes/TextEdit.xml
index e237cfa220..0210815d75 100644
--- a/doc/classes/TextEdit.xml
+++ b/doc/classes/TextEdit.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextEdit" inherits="Control" category="Core" version="3.1">
+<class name="TextEdit" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Multiline text editing control.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_color_region">
 			<return type="void">
@@ -43,6 +41,7 @@
 			<argument index="0" name="line" type="int">
 			</argument>
 			<description>
+				Returns if the given line is foldable, that is, it has indented lines right below it.
 			</description>
 		</method>
 		<method name="clear_colors">
@@ -122,6 +121,7 @@
 			<return type="void">
 			</return>
 			<description>
+				Folds all lines that are possible to be folded (see [method can_fold]).
 			</description>
 		</method>
 		<method name="fold_line">
@@ -130,6 +130,7 @@
 			<argument index="0" name="line" type="int">
 			</argument>
 			<description>
+				Folds the given line, if possible (see [method can_fold]).
 			</description>
 		</method>
 		<method name="get_breakpoints" qualifiers="const">
@@ -167,6 +168,7 @@
 			<return type="PopupMenu">
 			</return>
 			<description>
+				Returns the [PopupMenu] of this [TextEdit]. By default, this menu is displayed when right-clicking on the [TextEdit].
 			</description>
 		</method>
 		<method name="get_selection_from_column" qualifiers="const">
@@ -233,6 +235,7 @@
 			<argument index="0" name="line" type="int">
 			</argument>
 			<description>
+				Returns if the given line is folded.
 			</description>
 		</method>
 		<method name="is_line_hidden" qualifiers="const">
@@ -247,7 +250,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Return true if the selection is active.
+				Return [code]true[/code] if the selection is active.
 			</description>
 		</method>
 		<method name="menu_option">
@@ -348,6 +351,7 @@
 			<argument index="0" name="line" type="int">
 			</argument>
 			<description>
+				Unfolds the given line, if folded.
 			</description>
 		</method>
 		<method name="unhide_all_lines">
@@ -378,6 +382,12 @@
 		<member name="context_menu_enabled" type="bool" setter="set_context_menu_enabled" getter="is_context_menu_enabled">
 			If [code]true[/code], a right click displays the context menu.
 		</member>
+		<member name="draw_tabs" type="bool" setter="set_draw_tabs" getter="is_drawing_tabs">
+			If [code]true[/code], the "tab" character will have a visible representation.
+		</member>
+		<member name="fold_gutter" type="bool" setter="set_fold_gutter_enabled" getter="is_fold_gutter_enabled">
+			If [code]true[/code], the fold gutter is visible. This enables folding groups of indented lines.
+		</member>
 		<member name="hiding_enabled" type="int" setter="set_hiding_enabled" getter="is_hiding_enabled">
 		</member>
 		<member name="highlight_all_occurrences" type="bool" setter="set_highlight_all_occurrences" getter="is_highlight_all_occurrences_enabled">
@@ -401,9 +411,10 @@
 			String value of the [TextEdit].
 		</member>
 		<member name="v_scroll_speed" type="float" setter="set_v_scroll_speed" getter="get_v_scroll_speed">
-			If [code]true[/code], enables text wrapping when it goes beyond he edge of what is visible.
+			Vertical scroll sensitivity.
 		</member>
 		<member name="wrap_enabled" type="bool" setter="set_wrap_enabled" getter="is_wrap_enabled">
+			If [code]true[/code], enables text wrapping when it goes beyond the edge of what is visible.
 		</member>
 	</members>
 	<signals>
@@ -419,6 +430,14 @@
 				Emitted when the cursor changes.
 			</description>
 		</signal>
+		<signal name="info_clicked">
+			<argument index="0" name="row" type="int">
+			</argument>
+			<argument index="1" name="info" type="String">
+			</argument>
+			<description>
+			</description>
+		</signal>
 		<signal name="request_completion">
 			<description>
 			</description>
@@ -505,8 +524,14 @@
 		</theme_item>
 		<theme_item name="current_line_color" type="Color">
 		</theme_item>
+		<theme_item name="executing_line_color" type="Color">
+		</theme_item>
 		<theme_item name="focus" type="StyleBox">
 		</theme_item>
+		<theme_item name="fold" type="Texture">
+		</theme_item>
+		<theme_item name="folded" type="Texture">
+		</theme_item>
 		<theme_item name="font" type="Font">
 		</theme_item>
 		<theme_item name="font_color" type="Color">
diff --git a/doc/classes/TextFile.xml b/doc/classes/TextFile.xml
index f8c1fd690e..163900a482 100644
--- a/doc/classes/TextFile.xml
+++ b/doc/classes/TextFile.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextFile" inherits="Resource" category="Core" version="3.1">
+<class name="TextFile" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Texture.xml b/doc/classes/Texture.xml
index a9be42d1a1..39f3ee447c 100644
--- a/doc/classes/Texture.xml
+++ b/doc/classes/Texture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Texture" inherits="Resource" category="Core" version="3.1">
+<class name="Texture" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Texture for 2D and 3D.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="draw" qualifiers="const">
 			<return type="void">
diff --git a/doc/classes/Texture3D.xml b/doc/classes/Texture3D.xml
index 691d1f229e..30724eed50 100644
--- a/doc/classes/Texture3D.xml
+++ b/doc/classes/Texture3D.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Texture3D" inherits="TextureLayered" category="Core" version="3.1">
+<class name="Texture3D" inherits="TextureLayered" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/TextureArray.xml b/doc/classes/TextureArray.xml
index a08d8421f1..0a9ac1fb2e 100644
--- a/doc/classes/TextureArray.xml
+++ b/doc/classes/TextureArray.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextureArray" inherits="TextureLayered" category="Core" version="3.1">
+<class name="TextureArray" inherits="TextureLayered" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/TextureButton.xml b/doc/classes/TextureButton.xml
index b25c69c680..7b436fcf2b 100644
--- a/doc/classes/TextureButton.xml
+++ b/doc/classes/TextureButton.xml
@@ -1,16 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextureButton" inherits="BaseButton" category="Core" version="3.1">
+<class name="TextureButton" inherits="BaseButton" category="Core" version="3.2">
 	<brief_description>
 		Texture-based button. Supports Pressed, Hover, Disabled and Focused states.
 	</brief_description>
 	<description>
-		[code]TextureButton[/code] has the same functionality as [Button], except it uses sprites instead of Godot's [Theme] resource. It is faster to create, but it doesn't support localization like more complex Controls.
+		[TextureButton] has the same functionality as [Button], except it uses sprites instead of Godot's [Theme] resource. It is faster to create, but it doesn't support localization like more complex Controls.
 		The Normal state's texture is required. Others are optional.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/TextureLayered.xml b/doc/classes/TextureLayered.xml
index 026144cf5a..7c77bd43a3 100644
--- a/doc/classes/TextureLayered.xml
+++ b/doc/classes/TextureLayered.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextureLayered" inherits="Resource" category="Core" version="3.1">
+<class name="TextureLayered" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="create">
 			<return type="void">
diff --git a/doc/classes/TextureProgress.xml b/doc/classes/TextureProgress.xml
index a98a2e9f74..ae306c6862 100644
--- a/doc/classes/TextureProgress.xml
+++ b/doc/classes/TextureProgress.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextureProgress" inherits="Range" category="Core" version="3.1">
+<class name="TextureProgress" inherits="Range" category="Core" version="3.2">
 	<brief_description>
 		Texture-based progress bar. Useful for loading screens and life or stamina bars.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/TextureRect.xml b/doc/classes/TextureRect.xml
index 78065afcc9..829105d561 100644
--- a/doc/classes/TextureRect.xml
+++ b/doc/classes/TextureRect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TextureRect" inherits="Control" category="Core" version="3.1">
+<class name="TextureRect" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Control for drawing textures.
 	</brief_description>
@@ -8,14 +8,18 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="expand" type="bool" setter="set_expand" getter="has_expand">
 			If [code]true[/code], the texture scales to fit its bounding rectangle. Default value: [code]false[/code].
 		</member>
+		<member name="flip_h" type="bool" setter="set_flip_h" getter="is_flipped_h">
+			If [code]true[/code], texture is flipped horizontally. Default value: [code]false[/code].
+		</member>
+		<member name="flip_v" type="bool" setter="set_flip_v" getter="is_flipped_v">
+			If [code]true[/code], texture is flipped vertically. Default value: [code]false[/code].
+		</member>
 		<member name="stretch_mode" type="int" setter="set_stretch_mode" getter="get_stretch_mode" enum="TextureRect.StretchMode">
 			Controls the texture's behavior when resizing the node's bounding rectangle. See [enum StretchMode].
 		</member>
diff --git a/doc/classes/Theme.xml b/doc/classes/Theme.xml
index bffd8ea6d9..bc44ec161a 100644
--- a/doc/classes/Theme.xml
+++ b/doc/classes/Theme.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Theme" inherits="Resource" category="Core" version="3.1">
+<class name="Theme" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Theme for controls.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
diff --git a/doc/classes/Thread.xml b/doc/classes/Thread.xml
index 48d075c7f5..ff8221fed3 100644
--- a/doc/classes/Thread.xml
+++ b/doc/classes/Thread.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Thread" inherits="Reference" category="Core" version="3.1">
+<class name="Thread" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		A unit of execution in a process.
 	</brief_description>
@@ -8,21 +8,19 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_id" qualifiers="const">
 			<return type="String">
 			</return>
 			<description>
-				Returns the current [code]Thread[/code]s id, uniquely identifying it among all threads.
+				Returns the current [Thread]s id, uniquely identifying it among all threads.
 			</description>
 		</method>
 		<method name="is_active" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
-				Returns true if this [code]Thread[/code] is currently active. An active [code]Thread[/code] cannot start work on a new method but can be joined with [method wait_to_finish].
+				Returns [code]true[/code] if this [Thread] is currently active. An active [Thread] cannot start work on a new method but can be joined with [method wait_to_finish].
 			</description>
 		</method>
 		<method name="start">
@@ -34,10 +32,10 @@
 			</argument>
 			<argument index="2" name="userdata" type="Variant" default="null">
 			</argument>
-			<argument index="3" name="priority" type="int" default="1">
+			<argument index="3" name="priority" type="int" enum="Thread.Priority" default="1">
 			</argument>
 			<description>
-				Starts a new [code]Thread[/code] that runs "method" on object "instance" with "userdata" passed as an argument. The "priority" of the [code]Thread[/code] can be changed by passing a PRIORITY_* enum.
+				Starts a new [Thread] that runs "method" on object "instance" with "userdata" passed as an argument. The "priority" of the [Thread] can be changed by passing a PRIORITY_* enum.
 				Returns OK on success, or ERR_CANT_CREATE on failure.
 			</description>
 		</method>
@@ -45,7 +43,7 @@
 			<return type="Variant">
 			</return>
 			<description>
-				Joins the [code]Thread[/code] and waits for it to finish. Returns what the method called returned.
+				Joins the [Thread] and waits for it to finish. Returns what the method called returned.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/TileMap.xml b/doc/classes/TileMap.xml
index fe3b2118a3..ed4f914136 100644
--- a/doc/classes/TileMap.xml
+++ b/doc/classes/TileMap.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TileMap" inherits="Node2D" category="Core" version="3.1">
+<class name="TileMap" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Node for 2D tile-based maps.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/using_tilemaps.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
@@ -165,6 +163,13 @@
 				Optionally, the tile can also be flipped, transposed, or given autotile coordinates.
 				Note that data such as navigation polygons and collision shapes are not immediately updated for performance reasons.
 				If you need these to be immediately updated, you can call [method update_dirty_quadrants].
+				Overriding this method also overrides it internally, allowing custom logic to be implemented when tiles are placed/removed:
+				[codeblock]
+				func set_cell(x, y, tile, flip_x, flip_y, transpose, autotile_coord)
+				    # Write your custom logic here.
+				    # To call the default method:
+				    .set_cell(x, y, tile, flip_x, flip_y, transpose, autotile_coord)
+				[/codeblock]
 			</description>
 		</method>
 		<method name="set_cellv">
@@ -323,6 +328,12 @@
 		<constant name="HALF_OFFSET_DISABLED" value="2" enum="HalfOffset">
 			Half offset disabled.
 		</constant>
+		<constant name="HALF_OFFSET_NEGATIVE_X" value="3" enum="HalfOffset">
+			Half offset on the X coordinate (negative).
+		</constant>
+		<constant name="HALF_OFFSET_NEGATIVE_Y" value="4" enum="HalfOffset">
+			Half offset on the Y coordinate (negative).
+		</constant>
 		<constant name="TILE_ORIGIN_TOP_LEFT" value="0" enum="TileOrigin">
 			Tile origin at its top-left corner.
 		</constant>
diff --git a/doc/classes/TileSet.xml b/doc/classes/TileSet.xml
index 4abe94f119..0bf602dcf7 100644
--- a/doc/classes/TileSet.xml
+++ b/doc/classes/TileSet.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TileSet" inherits="Resource" category="Core" version="3.1">
+<class name="TileSet" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Tile library for tilemaps.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_forward_subtile_selection" qualifiers="virtual">
 			<return type="Vector2">
diff --git a/doc/classes/Timer.xml b/doc/classes/Timer.xml
index ae0a3ad148..74bd86b34b 100644
--- a/doc/classes/Timer.xml
+++ b/doc/classes/Timer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Timer" inherits="Node" category="Core" version="3.1">
+<class name="Timer" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		A countdown timer.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_stopped" qualifiers="const">
 			<return type="bool">
diff --git a/doc/classes/ToolButton.xml b/doc/classes/ToolButton.xml
index b52e1d39dc..b48ab75fd0 100644
--- a/doc/classes/ToolButton.xml
+++ b/doc/classes/ToolButton.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ToolButton" inherits="Button" category="Core" version="3.1">
+<class name="ToolButton" inherits="Button" category="Core" version="3.2">
 	<brief_description>
 		Flat button helper class.
 	</brief_description>
 	<description>
-		This is a helper class to generate a flat [Button] (see [member Button.flat]), creating a [code]ToolButton[/code] is equivalent to:
+		This is a helper class to generate a flat [Button] (see [member Button.flat]), creating a [ToolButton] is equivalent to:
 		[codeblock]
 		var btn = Button.new()
 		btn.flat = true
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/TouchScreenButton.xml b/doc/classes/TouchScreenButton.xml
index 6cc688d3c5..4b5a832b05 100644
--- a/doc/classes/TouchScreenButton.xml
+++ b/doc/classes/TouchScreenButton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TouchScreenButton" inherits="Node2D" category="Core" version="3.1">
+<class name="TouchScreenButton" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Button for touch screen devices.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_pressed" qualifiers="const">
 			<return type="bool">
diff --git a/doc/classes/Transform.xml b/doc/classes/Transform.xml
index b3168ef129..dfbb93acfc 100644
--- a/doc/classes/Transform.xml
+++ b/doc/classes/Transform.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Transform" category="Built-In Types" version="3.1">
+<class name="Transform" category="Built-In Types" version="3.2">
 	<brief_description>
 		3D Transformation. 3x4 matrix.
 	</brief_description>
@@ -10,8 +10,6 @@
 		<link>https://docs.godotengine.org/en/latest/tutorials/math/index.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/using_transforms.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Transform">
 			<return type="Transform">
@@ -172,9 +170,9 @@
 		</constant>
 		<constant name="FLIP_X" value="Transform( -1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 )">
 		</constant>
-		<constant name="FLIP_Y" value="Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 )">
+		<constant name="FLIP_Y" value="Transform( 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0 )">
 		</constant>
-		<constant name="FLIP_Z" value="Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 )">
+		<constant name="FLIP_Z" value="Transform( 1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0 )">
 		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/Transform2D.xml b/doc/classes/Transform2D.xml
index bf0a745aa8..bc003284ad 100644
--- a/doc/classes/Transform2D.xml
+++ b/doc/classes/Transform2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Transform2D" category="Built-In Types" version="3.1">
+<class name="Transform2D" category="Built-In Types" version="3.2">
 	<brief_description>
 		2D Transformation. 3x2 matrix.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Transform2D">
 			<return type="Transform2D">
diff --git a/doc/classes/Translation.xml b/doc/classes/Translation.xml
index b57f8f3556..5d51f7ee09 100644
--- a/doc/classes/Translation.xml
+++ b/doc/classes/Translation.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Translation" inherits="Resource" category="Core" version="3.1">
+<class name="Translation" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Language Translation.
 	</brief_description>
@@ -10,8 +10,6 @@
 		<link>https://docs.godotengine.org/en/stable/tutorials/i18n/internationalizing_games.html</link>
 		<link>https://docs.godotengine.org/en/stable/tutorials/i18n/locales.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_message">
 			<return type="void">
diff --git a/doc/classes/TranslationLoaderPO.xml b/doc/classes/TranslationLoaderPO.xml
index 58cf2f6572..d9896e1807 100644
--- a/doc/classes/TranslationLoaderPO.xml
+++ b/doc/classes/TranslationLoaderPO.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TranslationLoaderPO" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="TranslationLoaderPO" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/TranslationServer.xml b/doc/classes/TranslationServer.xml
index c2c400ccd5..05774635b8 100644
--- a/doc/classes/TranslationServer.xml
+++ b/doc/classes/TranslationServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TranslationServer" inherits="Object" category="Core" version="3.1">
+<class name="TranslationServer" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Server that manages all translations.
 	</brief_description>
@@ -10,8 +10,6 @@
 		<link>https://docs.godotengine.org/en/stable/tutorials/i18n/internationalizing_games.html</link>
 		<link>https://docs.godotengine.org/en/stable/tutorials/i18n/locales.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_translation">
 			<return type="void">
@@ -29,6 +27,12 @@
 				Clears the server from all translations.
 			</description>
 		</method>
+		<method name="get_loaded_locales" qualifiers="const">
+			<return type="Array">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_locale" qualifiers="const">
 			<return type="String">
 			</return>
diff --git a/doc/classes/Tree.xml b/doc/classes/Tree.xml
index d4a11247dc..b60673bb5b 100644
--- a/doc/classes/Tree.xml
+++ b/doc/classes/Tree.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Tree" inherits="Control" category="Core" version="3.1">
+<class name="Tree" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Control to show a tree of items.
 	</brief_description>
@@ -19,8 +19,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="are_column_titles_visible" qualifiers="const">
 			<return type="bool">
diff --git a/doc/classes/TreeItem.xml b/doc/classes/TreeItem.xml
index 209e5a8bd0..9524e048bb 100644
--- a/doc/classes/TreeItem.xml
+++ b/doc/classes/TreeItem.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TreeItem" inherits="Object" category="Core" version="3.1">
+<class name="TreeItem" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Control for a single item inside a [Tree].
 	</brief_description>
 	<description>
-		Control for a single item inside a [Tree]. May have child [code]TreeItem[/code]s and be styled as well as contain buttons.
+		Control for a single item inside a [Tree]. May have child [TreeItem]s and be styled as well as contain buttons.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_button">
 			<return type="void">
diff --git a/doc/classes/TriangleMesh.xml b/doc/classes/TriangleMesh.xml
index 2bdc7b61f4..9600a1d196 100644
--- a/doc/classes/TriangleMesh.xml
+++ b/doc/classes/TriangleMesh.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="TriangleMesh" inherits="Reference" category="Core" version="3.1">
+<class name="TriangleMesh" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Tween.xml b/doc/classes/Tween.xml
index f5f50a75b1..d121fdc125 100644
--- a/doc/classes/Tween.xml
+++ b/doc/classes/Tween.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Tween" inherits="Node" category="Core" version="3.1">
+<class name="Tween" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Smoothly animates a node's properties over time.
 	</brief_description>
@@ -18,8 +18,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="follow_method">
 			<return type="bool">
@@ -350,6 +348,11 @@
 		</member>
 	</members>
 	<signals>
+		<signal name="tween_all_completed">
+			<description>
+				Emitted when all processes in a tween end.
+			</description>
+		</signal>
 		<signal name="tween_completed">
 			<argument index="0" name="object" type="Object">
 			</argument>
diff --git a/doc/classes/UndoRedo.xml b/doc/classes/UndoRedo.xml
index f0980f6414..c0b73cd8e3 100644
--- a/doc/classes/UndoRedo.xml
+++ b/doc/classes/UndoRedo.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="UndoRedo" inherits="Object" category="Core" version="3.1">
+<class name="UndoRedo" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Helper to manage UndoRedo in the editor or custom tools.
 	</brief_description>
@@ -30,8 +30,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_do_method" qualifiers="vararg">
 			<return type="Variant">
diff --git a/doc/classes/VBoxContainer.xml b/doc/classes/VBoxContainer.xml
index 43a7be74c3..1b4a6a6b62 100644
--- a/doc/classes/VBoxContainer.xml
+++ b/doc/classes/VBoxContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VBoxContainer" inherits="BoxContainer" category="Core" version="3.1">
+<class name="VBoxContainer" inherits="BoxContainer" category="Core" version="3.2">
 	<brief_description>
 		Vertical box container.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VScrollBar.xml b/doc/classes/VScrollBar.xml
index 5486140870..0f46654bc2 100644
--- a/doc/classes/VScrollBar.xml
+++ b/doc/classes/VScrollBar.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VScrollBar" inherits="ScrollBar" category="Core" version="3.1">
+<class name="VScrollBar" inherits="ScrollBar" category="Core" version="3.2">
 	<brief_description>
 		Vertical version of [ScrollBar], which goes from left (min) to right (max).
 	</brief_description>
@@ -7,8 +7,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VSeparator.xml b/doc/classes/VSeparator.xml
index 4890b2d930..ab33c24bb6 100644
--- a/doc/classes/VSeparator.xml
+++ b/doc/classes/VSeparator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VSeparator" inherits="Separator" category="Core" version="3.1">
+<class name="VSeparator" inherits="Separator" category="Core" version="3.2">
 	<brief_description>
 		Vertical version of [Separator].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VSlider.xml b/doc/classes/VSlider.xml
index 1dc1b795f7..550bd16074 100644
--- a/doc/classes/VSlider.xml
+++ b/doc/classes/VSlider.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VSlider" inherits="Slider" category="Core" version="3.1">
+<class name="VSlider" inherits="Slider" category="Core" version="3.2">
 	<brief_description>
 		Vertical slider.
 	</brief_description>
 	<description>
-		Vertical slider. See [Slider]. This one goes from left (min) to right (max).
+		Vertical slider. See [Slider]. This one goes from bottom (min) to top (max).
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VSplitContainer.xml b/doc/classes/VSplitContainer.xml
index 2203035db3..594b662fea 100644
--- a/doc/classes/VSplitContainer.xml
+++ b/doc/classes/VSplitContainer.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VSplitContainer" inherits="SplitContainer" category="Core" version="3.1">
+<class name="VSplitContainer" inherits="SplitContainer" category="Core" version="3.2">
 	<brief_description>
 		Vertical split container.
 	</brief_description>
 	<description>
-		Vertical split container. See [SplitContainer]. This goes from left to right.
+		Vertical split container. See [SplitContainer]. This goes from top to bottom.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Variant.xml b/doc/classes/Variant.xml
index b2d21921a1..ee598c39f8 100644
--- a/doc/classes/Variant.xml
+++ b/doc/classes/Variant.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Variant" category="Core" version="3.1">
+<class name="Variant" category="Core" version="3.2">
 	<brief_description>
 		The most important data type in Godot.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Vector2.xml b/doc/classes/Vector2.xml
index 1770dec80d..75221ccc82 100644
--- a/doc/classes/Vector2.xml
+++ b/doc/classes/Vector2.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Vector2" category="Built-In Types" version="3.1">
+<class name="Vector2" category="Built-In Types" version="3.2">
 	<brief_description>
 		Vector used for 2D math.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/math/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Vector2">
 			<return type="Vector2">
@@ -112,6 +110,15 @@
 				Cubicly interpolates between this vector and [code]b[/code] using [code]pre_a[/code] and [code]post_b[/code] as handles, and returns the result at position [code]t[/code]. [code]t[/code] is in the range of [code]0.0 - 1.0[/code], representing the amount of interpolation.
 			</description>
 		</method>
+		<method name="direction_to">
+			<return type="Vector2">
+			</return>
+			<argument index="0" name="b" type="Vector2">
+			</argument>
+			<description>
+				Returns the normalized vector pointing from this vector to [code]b[/code].
+			</description>
+		</method>
 		<method name="distance_squared_to">
 			<return type="float">
 			</return>
@@ -209,7 +216,7 @@
 			<argument index="0" name="phi" type="float">
 			</argument>
 			<description>
-				Returns the vector rotated by [code]phi[/code] radians.
+				Returns the vector rotated by [code]phi[/code] radians. See also [method @GDScript.deg2rad].
 			</description>
 		</method>
 		<method name="round">
diff --git a/doc/classes/Vector3.xml b/doc/classes/Vector3.xml
index 48856875e7..bcd745945e 100644
--- a/doc/classes/Vector3.xml
+++ b/doc/classes/Vector3.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Vector3" category="Built-In Types" version="3.1">
+<class name="Vector3" category="Built-In Types" version="3.2">
 	<brief_description>
 		Vector class, which performs basic 3D vector math operations.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/math/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="Vector3">
 			<return type="Vector3">
@@ -81,6 +79,15 @@
 				Performs a cubic interpolation between vectors [code]pre_a[/code], [code]a[/code], [code]b[/code], [code]post_b[/code] ([code]a[/code] is current), by the given amount [code]t[/code]. [code]t[/code] is in the range of [code]0.0 - 1.0[/code], representing the amount of interpolation.
 			</description>
 		</method>
+		<method name="direction_to">
+			<return type="Vector3">
+			</return>
+			<argument index="0" name="b" type="Vector3">
+			</argument>
+			<description>
+				Returns the normalized vector pointing from this vector to [code]b[/code].
+			</description>
+		</method>
 		<method name="distance_squared_to">
 			<return type="float">
 			</return>
diff --git a/doc/classes/VehicleBody.xml b/doc/classes/VehicleBody.xml
index 53a47ec7d6..ab821aafdc 100644
--- a/doc/classes/VehicleBody.xml
+++ b/doc/classes/VehicleBody.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VehicleBody" inherits="RigidBody" category="Core" version="3.1">
+<class name="VehicleBody" inherits="RigidBody" category="Core" version="3.2">
 	<brief_description>
 		Physics body that simulates the behaviour of a car.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -18,11 +16,11 @@
 			Slows down the vehicle by applying a braking force. The vehicle is only slowed down if the wheels are in contact with a surface. The force you need to apply to adequately slow down your vehicle depends on the [member RigidBody.mass] of the vehicle. For a vehicle with a mass set to 1000, try a value in the 25 - 30 range for hard braking.
 		</member>
 		<member name="engine_force" type="float" setter="set_engine_force" getter="get_engine_force">
-			Accelerates the vehicle by applying an engine force. The vehicle is only speed up if the wheels that have [member VehicleWheel.use_as_traction] set to true and are in contact with a surface. The [member RigidBody.mass] of the vehicle has an effect on the acceleration of the vehicle. For a vehicle with a mass set to 1000, try a value in the 25 - 50 range for acceleration. Note that the simulation does not take the effect of gears into account, you will need to add logic for this if you wish to simulate gears.
+			Accelerates the vehicle by applying an engine force. The vehicle is only speed up if the wheels that have [member VehicleWheel.use_as_traction] set to [code]true[/code] and are in contact with a surface. The [member RigidBody.mass] of the vehicle has an effect on the acceleration of the vehicle. For a vehicle with a mass set to 1000, try a value in the 25 - 50 range for acceleration. Note that the simulation does not take the effect of gears into account, you will need to add logic for this if you wish to simulate gears.
 			A negative value will result in the vehicle reversing.
 		</member>
 		<member name="steering" type="float" setter="set_steering" getter="get_steering">
-			The steering angle for the vehicle. Setting this to a non-zero value will result in the vehicle turning when it's moving. Wheels that have [member VehicleWheel.use_as_steering] set to true will automatically be rotated.
+			The steering angle for the vehicle. Setting this to a non-zero value will result in the vehicle turning when it's moving. Wheels that have [member VehicleWheel.use_as_steering] set to [code]true[/code] will automatically be rotated.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/VehicleWheel.xml b/doc/classes/VehicleWheel.xml
index f2c6f5f287..f8dac82cb5 100644
--- a/doc/classes/VehicleWheel.xml
+++ b/doc/classes/VehicleWheel.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VehicleWheel" inherits="Spatial" category="Core" version="3.1">
+<class name="VehicleWheel" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Physics object that simulates the behaviour of a wheel.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_skidinfo" qualifiers="const">
 			<return type="float">
@@ -22,7 +20,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns true if this wheel is in contact with a surface.
+				Returns [code]true[/code] if this wheel is in contact with a surface.
 			</description>
 		</method>
 	</methods>
@@ -43,10 +41,10 @@
 			This is the distance the suspension can travel. As Godot measures are in meters keep this setting relatively low. Try a value between 0.1 and 0.3 depending on the type of car .
 		</member>
 		<member name="use_as_steering" type="bool" setter="set_use_as_steering" getter="is_used_as_steering">
-			If true this wheel will be turned when the car steers.
+			If [code]true[/code] this wheel will be turned when the car steers.
 		</member>
 		<member name="use_as_traction" type="bool" setter="set_use_as_traction" getter="is_used_as_traction">
-			If true this wheel transfers engine force to the ground to propel the vehicle forward.
+			If [code]true[/code] this wheel transfers engine force to the ground to propel the vehicle forward.
 		</member>
 		<member name="wheel_friction_slip" type="float" setter="set_friction_slip" getter="get_friction_slip">
 			This determines how much grip this wheel has. It is combined with the friction setting of the surface the wheel is in contact with. 0.0 means no grip, 1.0 is normal grip. For a drift car setup, try setting the grip of the rear wheels slightly lower than the front wheels, or use a lower value to simulate tire wear.
diff --git a/doc/classes/VideoPlayer.xml b/doc/classes/VideoPlayer.xml
index c4c129b0f6..15d1dfcf19 100644
--- a/doc/classes/VideoPlayer.xml
+++ b/doc/classes/VideoPlayer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VideoPlayer" inherits="Control" category="Core" version="3.1">
+<class name="VideoPlayer" inherits="Control" category="Core" version="3.2">
 	<brief_description>
 		Control for playing video streams.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_stream_name" qualifiers="const">
 			<return type="String">
diff --git a/doc/classes/VideoStream.xml b/doc/classes/VideoStream.xml
index 9f2655ed1b..7772c61e85 100644
--- a/doc/classes/VideoStream.xml
+++ b/doc/classes/VideoStream.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VideoStream" inherits="Resource" category="Core" version="3.1">
+<class name="VideoStream" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Base resource for video streams.
 	</brief_description>
@@ -7,8 +7,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/Viewport.xml b/doc/classes/Viewport.xml
index 09891ca889..b48dc9de35 100644
--- a/doc/classes/Viewport.xml
+++ b/doc/classes/Viewport.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Viewport" inherits="Node" category="Core" version="3.1">
+<class name="Viewport" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Creates a sub-view into the screen.
 	</brief_description>
@@ -15,8 +15,6 @@
 		<link>https://docs.godotengine.org/en/latest/tutorials/2d/2d_transforms.html</link>
 		<link>https://docs.godotengine.org/en/latest/tutorials/viewports/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="find_world" qualifiers="const">
 			<return type="World">
diff --git a/doc/classes/ViewportContainer.xml b/doc/classes/ViewportContainer.xml
index e022b8fa90..1642f7e85f 100644
--- a/doc/classes/ViewportContainer.xml
+++ b/doc/classes/ViewportContainer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ViewportContainer" inherits="Container" category="Core" version="3.1">
+<class name="ViewportContainer" inherits="Container" category="Core" version="3.2">
 	<brief_description>
 		Control for holding [Viewport]s.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/ViewportTexture.xml b/doc/classes/ViewportTexture.xml
index 67f1e09c75..ab3c2696aa 100644
--- a/doc/classes/ViewportTexture.xml
+++ b/doc/classes/ViewportTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ViewportTexture" inherits="Texture" category="Core" version="3.1">
+<class name="ViewportTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		Texture which displays the content of a [Viewport].
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisibilityEnabler.xml b/doc/classes/VisibilityEnabler.xml
index fc6ceac5de..910ca033d1 100644
--- a/doc/classes/VisibilityEnabler.xml
+++ b/doc/classes/VisibilityEnabler.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisibilityEnabler" inherits="VisibilityNotifier" category="Core" version="3.1">
+<class name="VisibilityEnabler" inherits="VisibilityNotifier" category="Core" version="3.2">
 	<brief_description>
 		Enable certain nodes only when visible.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisibilityEnabler2D.xml b/doc/classes/VisibilityEnabler2D.xml
index 8d393fc138..3943eca7f5 100644
--- a/doc/classes/VisibilityEnabler2D.xml
+++ b/doc/classes/VisibilityEnabler2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisibilityEnabler2D" inherits="VisibilityNotifier2D" category="Core" version="3.1">
+<class name="VisibilityEnabler2D" inherits="VisibilityNotifier2D" category="Core" version="3.2">
 	<brief_description>
 		Enable certain nodes only when visible.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisibilityNotifier.xml b/doc/classes/VisibilityNotifier.xml
index 16329d1d0d..986d6b8b13 100644
--- a/doc/classes/VisibilityNotifier.xml
+++ b/doc/classes/VisibilityNotifier.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisibilityNotifier" inherits="Spatial" category="Core" version="3.1">
+<class name="VisibilityNotifier" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Detects when the node is visible on screen.
 	</brief_description>
@@ -8,14 +8,13 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_on_screen" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
 				If [code]true[/code], the bounding box is on the screen.
+				Note: It takes one frame for the node's visibility to be assessed once added to the scene tree, so this method will return [code]false[/code] right after it is instantiated, even if it will be on screen in the draw pass.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/VisibilityNotifier2D.xml b/doc/classes/VisibilityNotifier2D.xml
index c60591cce6..787a33d752 100644
--- a/doc/classes/VisibilityNotifier2D.xml
+++ b/doc/classes/VisibilityNotifier2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisibilityNotifier2D" inherits="Node2D" category="Core" version="3.1">
+<class name="VisibilityNotifier2D" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Detects when the node is visible on screen.
 	</brief_description>
@@ -8,14 +8,13 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_on_screen" qualifiers="const">
 			<return type="bool">
 			</return>
 			<description>
 				If [code]true[/code], the bounding rectangle is on the screen.
+				Note: It takes one frame for the node's visibility to be assessed once added to the scene tree, so this method will return [code]false[/code] right after it is instantiated, even if it will be on screen in the draw pass.
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/VisualInstance.xml b/doc/classes/VisualInstance.xml
index 30dedb06f4..59f0a531dd 100644
--- a/doc/classes/VisualInstance.xml
+++ b/doc/classes/VisualInstance.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualInstance" inherits="Spatial" category="Core" version="3.1">
+<class name="VisualInstance" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_aabb" qualifiers="const">
 			<return type="AABB">
@@ -16,6 +14,18 @@
 				Returns the [AABB] (also known as the bounding box) for this VisualInstance.
 			</description>
 		</method>
+		<method name="get_base" qualifiers="const">
+			<return type="RID">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="get_instance" qualifiers="const">
+			<return type="RID">
+			</return>
+			<description>
+			</description>
+		</method>
 		<method name="get_layer_mask_bit" qualifiers="const">
 			<return type="bool">
 			</return>
diff --git a/doc/classes/VisualServer.xml b/doc/classes/VisualServer.xml
index 26a6bae48c..c85a2c4b38 100644
--- a/doc/classes/VisualServer.xml
+++ b/doc/classes/VisualServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualServer" inherits="Object" category="Core" version="3.1">
+<class name="VisualServer" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 		Server for anything visible.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="black_bars_set_images">
 			<return type="void">
@@ -68,6 +66,22 @@
 			<description>
 			</description>
 		</method>
+		<method name="camera_set_frustum">
+			<return type="void">
+			</return>
+			<argument index="0" name="camera" type="RID">
+			</argument>
+			<argument index="1" name="size" type="float">
+			</argument>
+			<argument index="2" name="offset" type="Vector2">
+			</argument>
+			<argument index="3" name="z_near" type="float">
+			</argument>
+			<argument index="4" name="z_far" type="float">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="camera_set_orthogonal">
 			<return type="void">
 			</return>
@@ -175,12 +189,15 @@
 			</argument>
 			<argument index="1" name="mesh" type="RID">
 			</argument>
-			<argument index="2" name="texture" type="RID">
+			<argument index="2" name="texture" type="Transform2D">
 			</argument>
-			<argument index="3" name="normal_map" type="RID">
+			<argument index="3" name="normal_map" type="Color">
+			</argument>
+			<argument index="4" name="arg4" type="RID">
+			</argument>
+			<argument index="5" name="arg5" type="RID">
 			</argument>
 			<description>
-				Adds a [Mesh] to the [CanvasItem]'s draw commands. Only affects its aabb at the moment.
 			</description>
 		</method>
 		<method name="canvas_item_add_multimesh">
@@ -1986,6 +2003,17 @@
 			<description>
 			</description>
 		</method>
+		<method name="light_set_use_gi">
+			<return type="void">
+			</return>
+			<argument index="0" name="light" type="RID">
+			</argument>
+			<argument index="1" name="enabled" type="bool">
+			</argument>
+			<description>
+        Sets whether GI probes capture light information from this light.
+			</description>
+		</method>
 		<method name="light_set_color">
 			<return type="void">
 			</return>
diff --git a/doc/classes/VisualShader.xml b/doc/classes/VisualShader.xml
index ab00080fef..d399f69c96 100644
--- a/doc/classes/VisualShader.xml
+++ b/doc/classes/VisualShader.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShader" inherits="Shader" category="Core" version="3.1">
+<class name="VisualShader" inherits="Shader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_node">
 			<return type="void">
diff --git a/doc/classes/VisualShaderNode.xml b/doc/classes/VisualShaderNode.xml
index ffcaf85eea..4fa80d8c82 100644
--- a/doc/classes/VisualShaderNode.xml
+++ b/doc/classes/VisualShaderNode.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNode" inherits="Resource" category="Core" version="3.1">
+<class name="VisualShaderNode" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_input_port_default_value" qualifiers="const">
 			<return type="Variant">
diff --git a/doc/classes/VisualShaderNodeBooleanConstant.xml b/doc/classes/VisualShaderNodeBooleanConstant.xml
new file mode 100644
index 0000000000..fd406db053
--- /dev/null
+++ b/doc/classes/VisualShaderNodeBooleanConstant.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeBooleanConstant" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="constant" type="bool" setter="set_constant" getter="get_constant">
+		</member>
+	</members>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeBooleanUniform.xml b/doc/classes/VisualShaderNodeBooleanUniform.xml
new file mode 100644
index 0000000000..518c7ba3b8
--- /dev/null
+++ b/doc/classes/VisualShaderNodeBooleanUniform.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeBooleanUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeColorConstant.xml b/doc/classes/VisualShaderNodeColorConstant.xml
index f1079e0056..d9a927e75d 100644
--- a/doc/classes/VisualShaderNodeColorConstant.xml
+++ b/doc/classes/VisualShaderNodeColorConstant.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeColorConstant" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeColorConstant" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeColorFunc.xml b/doc/classes/VisualShaderNodeColorFunc.xml
new file mode 100644
index 0000000000..23223587a5
--- /dev/null
+++ b/doc/classes/VisualShaderNodeColorFunc.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeColorFunc" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="function" type="int" setter="set_function" getter="get_function" enum="VisualShaderNodeColorFunc.Function">
+		</member>
+	</members>
+	<constants>
+		<constant name="FUNC_GRAYSCALE" value="0" enum="Function">
+		</constant>
+		<constant name="FUNC_SEPIA" value="1" enum="Function">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeColorOp.xml b/doc/classes/VisualShaderNodeColorOp.xml
index d23c674503..b78efa2adc 100644
--- a/doc/classes/VisualShaderNodeColorOp.xml
+++ b/doc/classes/VisualShaderNodeColorOp.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeColorOp" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeColorOp" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeColorUniform.xml b/doc/classes/VisualShaderNodeColorUniform.xml
index 0b97c104a2..ec61729782 100644
--- a/doc/classes/VisualShaderNodeColorUniform.xml
+++ b/doc/classes/VisualShaderNodeColorUniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeColorUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.1">
+<class name="VisualShaderNodeColorUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeCubeMap.xml b/doc/classes/VisualShaderNodeCubeMap.xml
index 9c56a23b7f..09f68a0e9a 100644
--- a/doc/classes/VisualShaderNodeCubeMap.xml
+++ b/doc/classes/VisualShaderNodeCubeMap.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeCubeMap" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeCubeMap" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeCubeMapUniform.xml b/doc/classes/VisualShaderNodeCubeMapUniform.xml
index fc95e4ddd9..b06fc97b14 100644
--- a/doc/classes/VisualShaderNodeCubeMapUniform.xml
+++ b/doc/classes/VisualShaderNodeCubeMapUniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeCubeMapUniform" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeCubeMapUniform" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeDeterminant.xml b/doc/classes/VisualShaderNodeDeterminant.xml
new file mode 100644
index 0000000000..a86db216c4
--- /dev/null
+++ b/doc/classes/VisualShaderNodeDeterminant.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeDeterminant" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeDotProduct.xml b/doc/classes/VisualShaderNodeDotProduct.xml
index c82f4cec3b..f07827db29 100644
--- a/doc/classes/VisualShaderNodeDotProduct.xml
+++ b/doc/classes/VisualShaderNodeDotProduct.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeDotProduct" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeDotProduct" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeFaceForward.xml b/doc/classes/VisualShaderNodeFaceForward.xml
new file mode 100644
index 0000000000..ea8589e6cb
--- /dev/null
+++ b/doc/classes/VisualShaderNodeFaceForward.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeFaceForward" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeIf.xml b/doc/classes/VisualShaderNodeIf.xml
new file mode 100644
index 0000000000..374a1e379a
--- /dev/null
+++ b/doc/classes/VisualShaderNodeIf.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeIf" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeInput.xml b/doc/classes/VisualShaderNodeInput.xml
index 29de7f81d1..32398b8545 100644
--- a/doc/classes/VisualShaderNodeInput.xml
+++ b/doc/classes/VisualShaderNodeInput.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeInput" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeInput" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeOuterProduct.xml b/doc/classes/VisualShaderNodeOuterProduct.xml
new file mode 100644
index 0000000000..3debde0634
--- /dev/null
+++ b/doc/classes/VisualShaderNodeOuterProduct.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeOuterProduct" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeOutput.xml b/doc/classes/VisualShaderNodeOutput.xml
index 7b65c6fd5e..ff109a949e 100644
--- a/doc/classes/VisualShaderNodeOutput.xml
+++ b/doc/classes/VisualShaderNodeOutput.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeOutput" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeOutput" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeScalarClamp.xml b/doc/classes/VisualShaderNodeScalarClamp.xml
new file mode 100644
index 0000000000..4c5309d1e7
--- /dev/null
+++ b/doc/classes/VisualShaderNodeScalarClamp.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeScalarClamp" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeScalarConstant.xml b/doc/classes/VisualShaderNodeScalarConstant.xml
index 424fb2b3bd..b18ac46fbd 100644
--- a/doc/classes/VisualShaderNodeScalarConstant.xml
+++ b/doc/classes/VisualShaderNodeScalarConstant.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeScalarConstant" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeScalarConstant" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeScalarDerivativeFunc.xml b/doc/classes/VisualShaderNodeScalarDerivativeFunc.xml
new file mode 100644
index 0000000000..6c3eb95b6f
--- /dev/null
+++ b/doc/classes/VisualShaderNodeScalarDerivativeFunc.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeScalarDerivativeFunc" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="function" type="int" setter="set_function" getter="get_function" enum="VisualShaderNodeScalarDerivativeFunc.Function">
+		</member>
+	</members>
+	<constants>
+		<constant name="FUNC_SUM" value="0" enum="Function">
+		</constant>
+		<constant name="FUNC_X" value="1" enum="Function">
+		</constant>
+		<constant name="FUNC_Y" value="2" enum="Function">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeScalarFunc.xml b/doc/classes/VisualShaderNodeScalarFunc.xml
index 7362ededce..163276b3bc 100644
--- a/doc/classes/VisualShaderNodeScalarFunc.xml
+++ b/doc/classes/VisualShaderNodeScalarFunc.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeScalarFunc" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeScalarFunc" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -55,5 +53,27 @@
 		</constant>
 		<constant name="FUNC_NEGATE" value="19" enum="Function">
 		</constant>
+		<constant name="FUNC_ACOSH" value="20" enum="Function">
+		</constant>
+		<constant name="FUNC_ASINH" value="21" enum="Function">
+		</constant>
+		<constant name="FUNC_ATANH" value="22" enum="Function">
+		</constant>
+		<constant name="FUNC_DEGREES" value="23" enum="Function">
+		</constant>
+		<constant name="FUNC_EXP2" value="24" enum="Function">
+		</constant>
+		<constant name="FUNC_INVERSE_SQRT" value="25" enum="Function">
+		</constant>
+		<constant name="FUNC_LOG2" value="26" enum="Function">
+		</constant>
+		<constant name="FUNC_RADIANS" value="27" enum="Function">
+		</constant>
+		<constant name="FUNC_RECIPROCAL" value="28" enum="Function">
+		</constant>
+		<constant name="FUNC_ROUNDEVEN" value="29" enum="Function">
+		</constant>
+		<constant name="FUNC_TRUNC" value="30" enum="Function">
+		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/VisualShaderNodeScalarInterp.xml b/doc/classes/VisualShaderNodeScalarInterp.xml
index 8420b34dd3..9d01e20b8d 100644
--- a/doc/classes/VisualShaderNodeScalarInterp.xml
+++ b/doc/classes/VisualShaderNodeScalarInterp.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeScalarInterp" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeScalarInterp" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeScalarOp.xml b/doc/classes/VisualShaderNodeScalarOp.xml
index 0ab0a46d0a..b2939a55ee 100644
--- a/doc/classes/VisualShaderNodeScalarOp.xml
+++ b/doc/classes/VisualShaderNodeScalarOp.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeScalarOp" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeScalarOp" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -33,5 +31,7 @@
 		</constant>
 		<constant name="OP_ATAN2" value="8" enum="Operator">
 		</constant>
+		<constant name="OP_STEP" value="9" enum="Operator">
+		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/VisualShaderNodeScalarSmoothStep.xml b/doc/classes/VisualShaderNodeScalarSmoothStep.xml
new file mode 100644
index 0000000000..737c535659
--- /dev/null
+++ b/doc/classes/VisualShaderNodeScalarSmoothStep.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeScalarSmoothStep" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeScalarUniform.xml b/doc/classes/VisualShaderNodeScalarUniform.xml
index 352355b475..bdbb02561b 100644
--- a/doc/classes/VisualShaderNodeScalarUniform.xml
+++ b/doc/classes/VisualShaderNodeScalarUniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeScalarUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.1">
+<class name="VisualShaderNodeScalarUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeSwitch.xml b/doc/classes/VisualShaderNodeSwitch.xml
new file mode 100644
index 0000000000..930d914035
--- /dev/null
+++ b/doc/classes/VisualShaderNodeSwitch.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeSwitch" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeTexture.xml b/doc/classes/VisualShaderNodeTexture.xml
index 18b2fc3b3f..7a73868c2b 100644
--- a/doc/classes/VisualShaderNodeTexture.xml
+++ b/doc/classes/VisualShaderNodeTexture.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTexture" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeTexture" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeTextureUniform.xml b/doc/classes/VisualShaderNodeTextureUniform.xml
index 1b5df52060..9312c24fe7 100644
--- a/doc/classes/VisualShaderNodeTextureUniform.xml
+++ b/doc/classes/VisualShaderNodeTextureUniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTextureUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.1">
+<class name="VisualShaderNodeTextureUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeTransformCompose.xml b/doc/classes/VisualShaderNodeTransformCompose.xml
index e1bda001e3..0939eb393d 100644
--- a/doc/classes/VisualShaderNodeTransformCompose.xml
+++ b/doc/classes/VisualShaderNodeTransformCompose.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTransformCompose" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeTransformCompose" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeTransformConstant.xml b/doc/classes/VisualShaderNodeTransformConstant.xml
index e86444563c..5b4c046ce1 100644
--- a/doc/classes/VisualShaderNodeTransformConstant.xml
+++ b/doc/classes/VisualShaderNodeTransformConstant.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTransformConstant" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeTransformConstant" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeTransformDecompose.xml b/doc/classes/VisualShaderNodeTransformDecompose.xml
index ee6d5c5d74..d986e6b7a8 100644
--- a/doc/classes/VisualShaderNodeTransformDecompose.xml
+++ b/doc/classes/VisualShaderNodeTransformDecompose.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTransformDecompose" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeTransformDecompose" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeTransformFunc.xml b/doc/classes/VisualShaderNodeTransformFunc.xml
new file mode 100644
index 0000000000..e74f449212
--- /dev/null
+++ b/doc/classes/VisualShaderNodeTransformFunc.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeTransformFunc" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="function" type="int" setter="set_function" getter="get_function" enum="VisualShaderNodeTransformFunc.Function">
+		</member>
+	</members>
+	<constants>
+		<constant name="FUNC_INVERSE" value="0" enum="Function">
+		</constant>
+		<constant name="FUNC_TRANSPOSE" value="1" enum="Function">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeTransformMult.xml b/doc/classes/VisualShaderNodeTransformMult.xml
index 31aa40db96..6082434beb 100644
--- a/doc/classes/VisualShaderNodeTransformMult.xml
+++ b/doc/classes/VisualShaderNodeTransformMult.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTransformMult" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeTransformMult" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -19,5 +17,9 @@
 		</constant>
 		<constant name="OP_BxA" value="1" enum="Operator">
 		</constant>
+		<constant name="OP_AxB_COMP" value="2" enum="Operator">
+		</constant>
+		<constant name="OP_BxA_COMP" value="3" enum="Operator">
+		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/VisualShaderNodeTransformUniform.xml b/doc/classes/VisualShaderNodeTransformUniform.xml
index 65b1088247..0a28e0c1f6 100644
--- a/doc/classes/VisualShaderNodeTransformUniform.xml
+++ b/doc/classes/VisualShaderNodeTransformUniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTransformUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.1">
+<class name="VisualShaderNodeTransformUniform" inherits="VisualShaderNodeUniform" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeTransformVecMult.xml b/doc/classes/VisualShaderNodeTransformVecMult.xml
index d3fb445717..46d3be2ded 100644
--- a/doc/classes/VisualShaderNodeTransformVecMult.xml
+++ b/doc/classes/VisualShaderNodeTransformVecMult.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeTransformVecMult" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeTransformVecMult" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeUniform.xml b/doc/classes/VisualShaderNodeUniform.xml
index 2c02afd0a7..09371f91de 100644
--- a/doc/classes/VisualShaderNodeUniform.xml
+++ b/doc/classes/VisualShaderNodeUniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeUniform" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeUniform" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeVec3Constant.xml b/doc/classes/VisualShaderNodeVec3Constant.xml
index 7492f56223..1ea7e8115e 100644
--- a/doc/classes/VisualShaderNodeVec3Constant.xml
+++ b/doc/classes/VisualShaderNodeVec3Constant.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVec3Constant" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVec3Constant" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/VisualShaderNodeVec3Uniform.xml b/doc/classes/VisualShaderNodeVec3Uniform.xml
index 79a21680fb..a1c9b14566 100644
--- a/doc/classes/VisualShaderNodeVec3Uniform.xml
+++ b/doc/classes/VisualShaderNodeVec3Uniform.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVec3Uniform" inherits="VisualShaderNodeUniform" category="Core" version="3.1">
+<class name="VisualShaderNodeVec3Uniform" inherits="VisualShaderNodeUniform" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeVectorClamp.xml b/doc/classes/VisualShaderNodeVectorClamp.xml
new file mode 100644
index 0000000000..a5d1e94e2f
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorClamp.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorClamp" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeVectorCompose.xml b/doc/classes/VisualShaderNodeVectorCompose.xml
index 39798a82d1..b7f650c82e 100644
--- a/doc/classes/VisualShaderNodeVectorCompose.xml
+++ b/doc/classes/VisualShaderNodeVectorCompose.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVectorCompose" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVectorCompose" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeVectorDecompose.xml b/doc/classes/VisualShaderNodeVectorDecompose.xml
index 8df12d8ba9..30727379e6 100644
--- a/doc/classes/VisualShaderNodeVectorDecompose.xml
+++ b/doc/classes/VisualShaderNodeVectorDecompose.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVectorDecompose" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVectorDecompose" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeVectorDerivativeFunc.xml b/doc/classes/VisualShaderNodeVectorDerivativeFunc.xml
new file mode 100644
index 0000000000..678df0fe3b
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorDerivativeFunc.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorDerivativeFunc" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<members>
+		<member name="function" type="int" setter="set_function" getter="get_function" enum="VisualShaderNodeVectorDerivativeFunc.Function">
+		</member>
+	</members>
+	<constants>
+		<constant name="FUNC_SUM" value="0" enum="Function">
+		</constant>
+		<constant name="FUNC_X" value="1" enum="Function">
+		</constant>
+		<constant name="FUNC_Y" value="2" enum="Function">
+		</constant>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeVectorDistance.xml b/doc/classes/VisualShaderNodeVectorDistance.xml
new file mode 100644
index 0000000000..f7c9acecf7
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorDistance.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorDistance" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeVectorFunc.xml b/doc/classes/VisualShaderNodeVectorFunc.xml
index 850b089645..71ce32c04e 100644
--- a/doc/classes/VisualShaderNodeVectorFunc.xml
+++ b/doc/classes/VisualShaderNodeVectorFunc.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVectorFunc" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVectorFunc" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -27,5 +25,61 @@
 		</constant>
 		<constant name="FUNC_HSV2RGB" value="5" enum="Function">
 		</constant>
+		<constant name="FUNC_ABS" value="6" enum="Function">
+		</constant>
+		<constant name="FUNC_ACOS" value="7" enum="Function">
+		</constant>
+		<constant name="FUNC_ACOSH" value="8" enum="Function">
+		</constant>
+		<constant name="FUNC_ASIN" value="9" enum="Function">
+		</constant>
+		<constant name="FUNC_ASINH" value="10" enum="Function">
+		</constant>
+		<constant name="FUNC_ATAN" value="11" enum="Function">
+		</constant>
+		<constant name="FUNC_ATANH" value="12" enum="Function">
+		</constant>
+		<constant name="FUNC_CEIL" value="13" enum="Function">
+		</constant>
+		<constant name="FUNC_COS" value="14" enum="Function">
+		</constant>
+		<constant name="FUNC_COSH" value="15" enum="Function">
+		</constant>
+		<constant name="FUNC_DEGREES" value="16" enum="Function">
+		</constant>
+		<constant name="FUNC_EXP" value="17" enum="Function">
+		</constant>
+		<constant name="FUNC_EXP2" value="18" enum="Function">
+		</constant>
+		<constant name="FUNC_FLOOR" value="19" enum="Function">
+		</constant>
+		<constant name="FUNC_FRAC" value="20" enum="Function">
+		</constant>
+		<constant name="FUNC_INVERSE_SQRT" value="21" enum="Function">
+		</constant>
+		<constant name="FUNC_LOG" value="22" enum="Function">
+		</constant>
+		<constant name="FUNC_LOG2" value="23" enum="Function">
+		</constant>
+		<constant name="FUNC_RADIANS" value="24" enum="Function">
+		</constant>
+		<constant name="FUNC_ROUND" value="25" enum="Function">
+		</constant>
+		<constant name="FUNC_ROUNDEVEN" value="26" enum="Function">
+		</constant>
+		<constant name="FUNC_SIGN" value="27" enum="Function">
+		</constant>
+		<constant name="FUNC_SIN" value="28" enum="Function">
+		</constant>
+		<constant name="FUNC_SINH" value="29" enum="Function">
+		</constant>
+		<constant name="FUNC_SQRT" value="30" enum="Function">
+		</constant>
+		<constant name="FUNC_TAN" value="31" enum="Function">
+		</constant>
+		<constant name="FUNC_TANH" value="32" enum="Function">
+		</constant>
+		<constant name="FUNC_TRUNC" value="33" enum="Function">
+		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/VisualShaderNodeVectorInterp.xml b/doc/classes/VisualShaderNodeVectorInterp.xml
index 909cd7eacc..2a398c653d 100644
--- a/doc/classes/VisualShaderNodeVectorInterp.xml
+++ b/doc/classes/VisualShaderNodeVectorInterp.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVectorInterp" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVectorInterp" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeVectorLen.xml b/doc/classes/VisualShaderNodeVectorLen.xml
index ad87d0bd0a..f6fdc0aff3 100644
--- a/doc/classes/VisualShaderNodeVectorLen.xml
+++ b/doc/classes/VisualShaderNodeVectorLen.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVectorLen" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVectorLen" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/doc/classes/VisualShaderNodeVectorOp.xml b/doc/classes/VisualShaderNodeVectorOp.xml
index 3e20168f15..cfcd16bbff 100644
--- a/doc/classes/VisualShaderNodeVectorOp.xml
+++ b/doc/classes/VisualShaderNodeVectorOp.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualShaderNodeVectorOp" inherits="VisualShaderNode" category="Core" version="3.1">
+<class name="VisualShaderNodeVectorOp" inherits="VisualShaderNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -33,5 +31,11 @@
 		</constant>
 		<constant name="OP_CROSS" value="8" enum="Operator">
 		</constant>
+		<constant name="OP_ATAN2" value="9" enum="Operator">
+		</constant>
+		<constant name="OP_REFLECT" value="10" enum="Operator">
+		</constant>
+		<constant name="OP_STEP" value="11" enum="Operator">
+		</constant>
 	</constants>
 </class>
diff --git a/doc/classes/VisualShaderNodeVectorRefract.xml b/doc/classes/VisualShaderNodeVectorRefract.xml
new file mode 100644
index 0000000000..4df072040a
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorRefract.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorRefract" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeVectorScalarSmoothStep.xml b/doc/classes/VisualShaderNodeVectorScalarSmoothStep.xml
new file mode 100644
index 0000000000..4334eee7c1
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorScalarSmoothStep.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorScalarSmoothStep" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeVectorScalarStep.xml b/doc/classes/VisualShaderNodeVectorScalarStep.xml
new file mode 100644
index 0000000000..ad8cac059b
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorScalarStep.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorScalarStep" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/VisualShaderNodeVectorSmoothStep.xml b/doc/classes/VisualShaderNodeVectorSmoothStep.xml
new file mode 100644
index 0000000000..59acff7d05
--- /dev/null
+++ b/doc/classes/VisualShaderNodeVectorSmoothStep.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="VisualShaderNodeVectorSmoothStep" inherits="VisualShaderNode" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/doc/classes/WeakRef.xml b/doc/classes/WeakRef.xml
index 4a0f3588c2..6845c81a13 100644
--- a/doc/classes/WeakRef.xml
+++ b/doc/classes/WeakRef.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WeakRef" inherits="Reference" category="Core" version="3.1">
+<class name="WeakRef" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Holds an [Object], but does not contribute to the reference count if the object is a reference.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_ref" qualifiers="const">
 			<return type="Variant">
diff --git a/doc/classes/WindowDialog.xml b/doc/classes/WindowDialog.xml
index 51931444fc..16b7bd84ad 100644
--- a/doc/classes/WindowDialog.xml
+++ b/doc/classes/WindowDialog.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WindowDialog" inherits="Popup" category="Core" version="3.1">
+<class name="WindowDialog" inherits="Popup" category="Core" version="3.2">
 	<brief_description>
 		Base class for window dialogs.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_close_button">
 			<return type="TextureButton">
diff --git a/doc/classes/World.xml b/doc/classes/World.xml
index 4e954acd48..c8e6944b83 100644
--- a/doc/classes/World.xml
+++ b/doc/classes/World.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="World" inherits="Resource" category="Core" version="3.1">
+<class name="World" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Class that has everything pertaining to a world.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/ray-casting.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/World2D.xml b/doc/classes/World2D.xml
index 9c3d66dade..66ef18f8f4 100644
--- a/doc/classes/World2D.xml
+++ b/doc/classes/World2D.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="World2D" inherits="Resource" category="Core" version="3.1">
+<class name="World2D" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Class that has everything pertaining to a 2D world.
 	</brief_description>
@@ -9,8 +9,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/physics/ray-casting.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/WorldEnvironment.xml b/doc/classes/WorldEnvironment.xml
index 8c212502d6..b4524bfea0 100644
--- a/doc/classes/WorldEnvironment.xml
+++ b/doc/classes/WorldEnvironment.xml
@@ -1,23 +1,21 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WorldEnvironment" inherits="Node" category="Core" version="3.1">
+<class name="WorldEnvironment" inherits="Node" category="Core" version="3.2">
 	<brief_description>
 		Default environment properties for the entire scene (post-processing effects, lighting and background settings).
 	</brief_description>
 	<description>
-		The [code]WorldEnvironment[/code] node is used to configure the default [Environment] for the scene.
-		The parameters defined in the [code]WorldEnvironment[/code] can be overridden by an [Environment] node set on the current [Camera]. Additionally, only one [code]WorldEnvironment[/code] may be instanced in a given scene at a time.
-		The [code]WorldEnvironment[/code] allows the user to specify default lighting parameters (e.g. ambient lighting), various post-processing effects (e.g. SSAO, DOF, Tonemapping), and how to draw the background (e.g. solid color, skybox). Usually, these are added in order to improve the realism/color balance of the scene.
+		The [WorldEnvironment] node is used to configure the default [Environment] for the scene.
+		The parameters defined in the [WorldEnvironment] can be overridden by an [Environment] node set on the current [Camera]. Additionally, only one [WorldEnvironment] may be instanced in a given scene at a time.
+		The [WorldEnvironment] allows the user to specify default lighting parameters (e.g. ambient lighting), various post-processing effects (e.g. SSAO, DOF, Tonemapping), and how to draw the background (e.g. solid color, skybox). Usually, these are added in order to improve the realism/color balance of the scene.
 	</description>
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/environment_and_post_processing.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="environment" type="Environment" setter="set_environment" getter="get_environment">
-			The [Environment] resource used by this [code]WorldEnvironment[/code], defining the default properties.
+			The [Environment] resource used by this [WorldEnvironment], defining the default properties.
 		</member>
 	</members>
 	<constants>
diff --git a/doc/classes/XMLParser.xml b/doc/classes/XMLParser.xml
index fb03ab1692..a11e95db79 100644
--- a/doc/classes/XMLParser.xml
+++ b/doc/classes/XMLParser.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="XMLParser" inherits="Reference" category="Core" version="3.1">
+<class name="XMLParser" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Low-level class for creating parsers for XML files.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_attribute_count" qualifiers="const">
 			<return type="int">
diff --git a/doc/classes/YSort.xml b/doc/classes/YSort.xml
index e9233ff079..b9f3fa914b 100644
--- a/doc/classes/YSort.xml
+++ b/doc/classes/YSort.xml
@@ -1,15 +1,14 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="YSort" inherits="Node2D" category="Core" version="3.1">
+<class name="YSort" inherits="Node2D" category="Core" version="3.2">
 	<brief_description>
 		Sort all child nodes based on their Y positions.
 	</brief_description>
 	<description>
 		Sort all child nodes based on their Y positions. The child node must inherit from [CanvasItem] for it to be sorted. Nodes that have a higher Y position will be drawn later, so they will appear on top of nodes that have a lower Y position.
+		Nesting of YSort nodes is possible. Children YSort nodes will be sorted in the same space as the parent YSort, allowing to better organize a scene or divide it in multiple ones, yet keep the unique sorting.
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/doc/classes/bool.xml b/doc/classes/bool.xml
index 0fec8eb530..9ed029a500 100644
--- a/doc/classes/bool.xml
+++ b/doc/classes/bool.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="bool" category="Built-In Types" version="3.1">
+<class name="bool" category="Built-In Types" version="3.2">
 	<brief_description>
 		Boolean built-in type
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="bool">
 			<return type="bool">
@@ -17,7 +15,7 @@
 			<argument index="0" name="from" type="int">
 			</argument>
 			<description>
-				Cast an [int] value to a boolean value, this method will return true if called with an integer value different to 0 and false in other case.
+				Cast an [int] value to a boolean value, this method will return [code]true[/code] if called with an integer value different to 0 and [code]false[/code] in other case.
 			</description>
 		</method>
 		<method name="bool">
@@ -26,7 +24,7 @@
 			<argument index="0" name="from" type="float">
 			</argument>
 			<description>
-				Cast a [float] value to a boolean value, this method will return true if called with a floating point value different to 0 and false in other case.
+				Cast a [float] value to a boolean value, this method will return [code]true[/code] if called with a floating point value different to 0 and [code]false[/code] in other case.
 			</description>
 		</method>
 		<method name="bool">
@@ -35,7 +33,7 @@
 			<argument index="0" name="from" type="String">
 			</argument>
 			<description>
-				Cast a [String] value to a boolean value, this method will return true if called with a non empty string and false in other case. Examples: [code]bool('False')[/code] returns true, [code]bool('')[/code]. returns false
+				Cast a [String] value to a boolean value, this method will return [code]true[/code] if called with a non empty string and [code]false[/code] in other case. Examples: [code]bool('False')[/code] returns [code]true[/code], [code]bool('')[/code] returns [code]false[/code].
 			</description>
 		</method>
 	</methods>
diff --git a/doc/classes/float.xml b/doc/classes/float.xml
index 7297f5bf94..506fb643e1 100644
--- a/doc/classes/float.xml
+++ b/doc/classes/float.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="float" category="Built-In Types" version="3.1">
+<class name="float" category="Built-In Types" version="3.2">
 	<brief_description>
 		Float built-in type
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="float">
 			<return type="float">
diff --git a/doc/classes/int.xml b/doc/classes/int.xml
index 7175b9fd88..dad0f0d8c0 100644
--- a/doc/classes/int.xml
+++ b/doc/classes/int.xml
@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="int" category="Built-In Types" version="3.1">
+<class name="int" category="Built-In Types" version="3.2">
 	<brief_description>
 		Integer built-in type.
 	</brief_description>
 	<description>
 		Signed 64-bit integer type.
 		It can take values in the interval [code][-2^63, 2^63 - 1][/code], i.e. [code][-9223372036854775808, 9223372036854775807][/code]. Exceeding those bounds will wrap around.
-		[code]int[/code] is a [Variant] type, and will thus be used when assigning an integer value to a [Variant]. It can also be enforced with the [code]: int[/code] type hint.
+		[int] is a [Variant] type, and will thus be used when assigning an integer value to a [Variant]. It can also be enforced with the [code]: int[/code] type hint.
 		[codeblock]
 		var my_variant = 0    # int, value 0
 		my_variant += 4.2     # float, value 4.2
@@ -22,8 +22,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="int">
 			<return type="int">
diff --git a/doc/tools/doc_status.py b/doc/tools/doc_status.py
index 4bb4342d5f..974ac2d05c 100644
--- a/doc/tools/doc_status.py
+++ b/doc/tools/doc_status.py
@@ -261,7 +261,7 @@ class ClassStatus:
                 for sub_tag in list(tag):
                     status.progresses[tag.tag].increment(len(sub_tag.text.strip()) > 0)
 
-            elif tag.tag in ['tutorials', 'demos']:
+            elif tag.tag in ['tutorials']:
                 pass  # Ignore those tags for now
 
             elif tag.tag in ['theme_items']:
diff --git a/doc/tools/makerst.py b/doc/tools/makerst.py
index 40dde48432..e81b4db13e 100755
--- a/doc/tools/makerst.py
+++ b/doc/tools/makerst.py
@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
 import argparse
-import sys
 import os
 import re
 import xml.etree.ElementTree as ET
-from collections import defaultdict, OrderedDict
+from collections import OrderedDict
 
 # Uncomment to do type checks. I have it commented out so it works below Python 3.5
 #from typing import List, Dict, TextIO, Tuple, Iterable, Optional, DefaultDict, Any, Union
@@ -702,7 +701,11 @@ def rstize_text(text, state):  # type: (str, State) -> str
         escape_post = False
 
         if tag_text in state.classes:
-            tag_text = make_type(tag_text, state)
+            if tag_text == state.current_class:
+                # We don't want references to the same class
+                tag_text = '``{}``'.format(tag_text)
+            else:
+                tag_text = make_type(tag_text, state)
             escape_post = True
         else:  # command
             cmd = tag_text
@@ -757,14 +760,25 @@ def rstize_text(text, state):  # type: (str, State) -> str
 
                     elif cmd.startswith("constant"):
                         found = False
-                        if method_param in class_def.constants:
-                            found = True
 
-                        else:
-                            for enum in class_def.enums.values():
-                                if method_param in enum.values:
-                                    found = True
-                                    break
+                        # Search in the current class
+                        search_class_defs = [class_def]
+
+                        if param.find('.') == -1:
+                            # Also search in @GlobalScope as a last resort if no class was specified
+                            search_class_defs.append(state.classes["@GlobalScope"])
+
+                        for search_class_def in search_class_defs:
+                            if method_param in search_class_def.constants:
+                                class_param = search_class_def.name
+                                found = True
+
+                            else:
+                                for enum in search_class_def.enums.values():
+                                    if method_param in enum.values:
+                                        class_param = search_class_def.name
+                                        found = True
+                                        break
 
                         if not found:
                             print_error("Unresolved constant '{}', file: {}".format(param, state.current_class), state)
@@ -917,6 +931,9 @@ def make_enum(t, state):  # type: (str, State) -> str
         if c in state.classes and e not in state.classes[c].enums:
             c = "@GlobalScope"
 
+    if not c in state.classes and c.startswith("_"):
+        c = c[1:] # Remove the underscore prefix
+
     if c in state.classes and e in state.classes[c].enums:
         return ":ref:`{0}<enum_{1}_{0}>`".format(e, c)
     print_error("Unresolved enum '{}', file: {}".format(t, state.current_class), state)
diff --git a/drivers/dummy/rasterizer_dummy.h b/drivers/dummy/rasterizer_dummy.h
index ddf4d1d85c..3b31da1dd7 100644
--- a/drivers/dummy/rasterizer_dummy.h
+++ b/drivers/dummy/rasterizer_dummy.h
@@ -484,6 +484,7 @@ public:
 	void light_set_negative(RID p_light, bool p_enable) {}
 	void light_set_cull_mask(RID p_light, uint32_t p_mask) {}
 	void light_set_reverse_cull_face_mode(RID p_light, bool p_enabled) {}
+	void light_set_use_gi(RID p_light, bool p_enabled) {}
 
 	void light_omni_set_shadow_mode(RID p_light, VS::LightOmniShadowMode p_mode) {}
 	void light_omni_set_shadow_detail(RID p_light, VS::LightOmniShadowDetail p_detail) {}
@@ -503,6 +504,7 @@ public:
 	AABB light_get_aabb(RID p_light) const { return AABB(); }
 	float light_get_param(RID p_light, VS::LightParam p_param) { return 0.0; }
 	Color light_get_color(RID p_light) { return Color(); }
+	bool light_get_use_gi(RID p_light) { return false; }
 	uint64_t light_get_version(RID p_light) const { return 0; }
 
 	/* PROBE API */
@@ -692,6 +694,7 @@ public:
 	RID render_target_create() { return RID(); }
 	void render_target_set_size(RID p_render_target, int p_width, int p_height) {}
 	RID render_target_get_texture(RID p_render_target) const { return RID(); }
+	void render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id) {}
 	void render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value) {}
 	bool render_target_was_used(RID p_render_target) { return false; }
 	void render_target_clear_used(RID p_render_target) {}
@@ -781,7 +784,7 @@ public:
 	void initialize() {}
 	void begin_frame(double frame_step) {}
 	void set_current_render_target(RID p_render_target) {}
-	void restore_render_target() {}
+	void restore_render_target(bool p_3d_was_drawn) {}
 	void clear_render_target(const Color &p_color) {}
 	void blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect, int p_screen = 0) {}
 	void output_lens_distorted_to_screen(RID p_render_target, const Rect2 &p_screen_rect, float p_k1, float p_k2, const Vector2 &p_eye_center, float p_oversample) {}
diff --git a/drivers/gl_context/SCsub b/drivers/gl_context/SCsub
index efb26a7908..ef5b57a0cc 100644
--- a/drivers/gl_context/SCsub
+++ b/drivers/gl_context/SCsub
@@ -10,7 +10,7 @@ if (env["platform"] in ["haiku", "osx", "windows", "x11"]):
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env.Append(CPPPATH=[thirdparty_dir])
+    env.Prepend(CPPPATH=[thirdparty_dir])
 
     env.Append(CPPFLAGS=['-DGLAD_ENABLED'])
     env.Append(CPPFLAGS=['-DGLES_OVER_GL'])
diff --git a/drivers/gles2/rasterizer_canvas_gles2.cpp b/drivers/gles2/rasterizer_canvas_gles2.cpp
index 3671679b49..7232d2d95a 100644
--- a/drivers/gles2/rasterizer_canvas_gles2.cpp
+++ b/drivers/gles2/rasterizer_canvas_gles2.cpp
@@ -288,14 +288,14 @@ void RasterizerCanvasGLES2::_draw_polygon(const int *p_indices, int p_index_coun
 	} else {
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Color) * p_vertex_count, p_colors);
 		glEnableVertexAttribArray(VS::ARRAY_COLOR);
-		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(Color), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(Color), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Color) * p_vertex_count;
 	}
 
 	if (p_uvs) {
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_uvs);
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Vector2) * p_vertex_count;
 	} else {
 		glDisableVertexAttribArray(VS::ARRAY_TEX_UV);
@@ -304,12 +304,12 @@ void RasterizerCanvasGLES2::_draw_polygon(const int *p_indices, int p_index_coun
 	if (p_weights && p_bones) {
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(float) * 4 * p_vertex_count, p_weights);
 		glEnableVertexAttribArray(VS::ARRAY_WEIGHTS);
-		glVertexAttribPointer(VS::ARRAY_WEIGHTS, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4, ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_WEIGHTS, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4, CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(float) * 4 * p_vertex_count;
 
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(int) * 4 * p_vertex_count, p_bones);
 		glEnableVertexAttribArray(VS::ARRAY_BONES);
-		glVertexAttribPointer(VS::ARRAY_BONES, 4, GL_UNSIGNED_INT, GL_FALSE, sizeof(int) * 4, ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_BONES, 4, GL_UNSIGNED_INT, GL_FALSE, sizeof(int) * 4, CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(int) * 4 * p_vertex_count;
 
 	} else {
@@ -342,7 +342,7 @@ void RasterizerCanvasGLES2::_draw_generic(GLuint p_primitive, int p_vertex_count
 
 	glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(Vector2) * p_vertex_count, p_vertices);
 	glEnableVertexAttribArray(VS::ARRAY_VERTEX);
-	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), (uint8_t *)0);
+	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), NULL);
 	buffer_ofs += sizeof(Vector2) * p_vertex_count;
 
 	if (p_singlecolor) {
@@ -355,14 +355,14 @@ void RasterizerCanvasGLES2::_draw_generic(GLuint p_primitive, int p_vertex_count
 	} else {
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Color) * p_vertex_count, p_colors);
 		glEnableVertexAttribArray(VS::ARRAY_COLOR);
-		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(Color), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(Color), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Color) * p_vertex_count;
 	}
 
 	if (p_uvs) {
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_uvs);
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 	} else {
 		glDisableVertexAttribArray(VS::ARRAY_TEX_UV);
 	}
@@ -419,12 +419,12 @@ void RasterizerCanvasGLES2::_draw_gui_primitive(int p_points, const Vector2 *p_v
 	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, stride * sizeof(float), NULL);
 
 	if (p_colors) {
-		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, stride * sizeof(float), (uint8_t *)0 + color_offset * sizeof(float));
+		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, stride * sizeof(float), CAST_INT_TO_UCHAR_PTR(color_offset * sizeof(float)));
 		glEnableVertexAttribArray(VS::ARRAY_COLOR);
 	}
 
 	if (p_uvs) {
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, stride * sizeof(float), (uint8_t *)0 + uv_offset * sizeof(float));
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, stride * sizeof(float), CAST_INT_TO_UCHAR_PTR(uv_offset * sizeof(float)));
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
 	}
 
@@ -840,7 +840,7 @@ void RasterizerCanvasGLES2::_canvas_item_render_commands(Item *p_item, Item *cur
 				glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
 
 				glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float), NULL);
-				glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (uint8_t *)0 + (sizeof(float) * 2));
+				glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float), CAST_INT_TO_UCHAR_PTR((sizeof(float) * 2)));
 
 				glDrawElements(GL_TRIANGLES, 18 * 3 - (np->draw_center ? 0 : 6), GL_UNSIGNED_BYTE, NULL);
 
@@ -932,7 +932,7 @@ void RasterizerCanvasGLES2::_canvas_item_render_commands(Item *p_item, Item *cur
 						for (int k = 0; k < VS::ARRAY_MAX - 1; k++) {
 							if (s->attribs[k].enabled) {
 								glEnableVertexAttribArray(k);
-								glVertexAttribPointer(s->attribs[k].index, s->attribs[k].size, s->attribs[k].type, s->attribs[k].normalized, s->attribs[k].stride, (uint8_t *)0 + s->attribs[k].offset);
+								glVertexAttribPointer(s->attribs[k].index, s->attribs[k].size, s->attribs[k].type, s->attribs[k].normalized, s->attribs[k].stride, CAST_INT_TO_UCHAR_PTR(s->attribs[k].offset));
 							} else {
 								glDisableVertexAttribArray(k);
 								switch (k) {
@@ -943,7 +943,8 @@ void RasterizerCanvasGLES2::_canvas_item_render_commands(Item *p_item, Item *cur
 										glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1);
 
 									} break;
-									default: {}
+									default: {
+									}
 								}
 							}
 						}
@@ -1021,7 +1022,7 @@ void RasterizerCanvasGLES2::_canvas_item_render_commands(Item *p_item, Item *cur
 					for (int k = 0; k < VS::ARRAY_MAX - 1; k++) {
 						if (s->attribs[k].enabled) {
 							glEnableVertexAttribArray(k);
-							glVertexAttribPointer(s->attribs[k].index, s->attribs[k].size, s->attribs[k].type, s->attribs[k].normalized, s->attribs[k].stride, (uint8_t *)0 + s->attribs[k].offset);
+							glVertexAttribPointer(s->attribs[k].index, s->attribs[k].size, s->attribs[k].type, s->attribs[k].normalized, s->attribs[k].stride, CAST_INT_TO_UCHAR_PTR(s->attribs[k].offset));
 						} else {
 							glDisableVertexAttribArray(k);
 							switch (k) {
@@ -1032,7 +1033,8 @@ void RasterizerCanvasGLES2::_canvas_item_render_commands(Item *p_item, Item *cur
 									glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1);
 
 								} break;
-								default: {}
+								default: {
+								}
 							}
 						}
 					}
diff --git a/drivers/gles2/rasterizer_gles2.cpp b/drivers/gles2/rasterizer_gles2.cpp
index 71b826d689..f49f52e47b 100644
--- a/drivers/gles2/rasterizer_gles2.cpp
+++ b/drivers/gles2/rasterizer_gles2.cpp
@@ -32,7 +32,6 @@
 
 #include "core/os/os.h"
 #include "core/project_settings.h"
-#include "drivers/gl_context/context_gl.h"
 
 #define _EXT_DEBUG_OUTPUT_SYNCHRONOUS_ARB 0x8242
 #define _EXT_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_ARB 0x8243
@@ -203,6 +202,10 @@ Error RasterizerGLES2::is_viable() {
 			return ERR_UNAVAILABLE;
 		}
 	}
+
+	if (GLAD_GL_EXT_framebuffer_multisample) {
+		glRenderbufferStorageMultisample = glRenderbufferStorageMultisampleEXT;
+	}
 #endif // GLES_OVER_GL
 
 #endif // GLAD_ENABLED
@@ -321,7 +324,7 @@ void RasterizerGLES2::set_current_render_target(RID p_render_target) {
 	}
 }
 
-void RasterizerGLES2::restore_render_target() {
+void RasterizerGLES2::restore_render_target(bool p_3d_was_drawn) {
 	ERR_FAIL_COND(storage->frame.current_rt == NULL);
 	RasterizerStorageGLES2::RenderTarget *rt = storage->frame.current_rt;
 	glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
@@ -410,7 +413,11 @@ void RasterizerGLES2::blit_render_target_to_screen(RID p_render_target, const Re
 	glDisable(GL_BLEND);
 	glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo);
 	glActiveTexture(GL_TEXTURE0 + storage->config.max_texture_image_units - 1);
-	glBindTexture(GL_TEXTURE_2D, rt->color);
+	if (rt->external.fbo != 0) {
+		glBindTexture(GL_TEXTURE_2D, rt->external.color);
+	} else {
+		glBindTexture(GL_TEXTURE_2D, rt->color);
+	}
 
 	// TODO normals
 
diff --git a/drivers/gles2/rasterizer_gles2.h b/drivers/gles2/rasterizer_gles2.h
index ed4eeb84d2..eeed86e263 100644
--- a/drivers/gles2/rasterizer_gles2.h
+++ b/drivers/gles2/rasterizer_gles2.h
@@ -56,7 +56,7 @@ public:
 	virtual void initialize();
 	virtual void begin_frame(double frame_step);
 	virtual void set_current_render_target(RID p_render_target);
-	virtual void restore_render_target();
+	virtual void restore_render_target(bool p_3d_was_drawn);
 	virtual void clear_render_target(const Color &p_color);
 	virtual void blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect, int p_screen = 0);
 	virtual void output_lens_distorted_to_screen(RID p_render_target, const Rect2 &p_screen_rect, float p_k1, float p_k2, const Vector2 &p_eye_center, float p_oversample);
diff --git a/drivers/gles2/rasterizer_scene_gles2.cpp b/drivers/gles2/rasterizer_scene_gles2.cpp
index 2ffc0d7463..3b3fbf9ed5 100644
--- a/drivers/gles2/rasterizer_scene_gles2.cpp
+++ b/drivers/gles2/rasterizer_scene_gles2.cpp
@@ -42,6 +42,16 @@
 #define glClearDepth glClearDepthf
 #endif
 
+#ifndef GLES_OVER_GL
+#ifdef IPHONE_ENABLED
+#include <OpenGLES/ES2/glext.h>
+//void *glResolveMultisampleFramebufferAPPLE;
+
+#define GL_READ_FRAMEBUFFER 0x8CA8
+#define GL_DRAW_FRAMEBUFFER 0x8CA9
+#endif
+#endif
+
 static const GLenum _cube_side_enum[6] = {
 
 	GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
@@ -480,7 +490,6 @@ RID RasterizerSceneGLES2::reflection_probe_instance_create(RID p_probe) {
 	rpi->current_resolution = 0;
 	rpi->dirty = true;
 
-	rpi->last_pass = 0;
 	rpi->index = 0;
 
 	for (int i = 0; i < 6; i++) {
@@ -1149,6 +1158,30 @@ void RasterizerSceneGLES2::_add_geometry_with_material(RasterizerStorageGLES2::G
 	}
 }
 
+void RasterizerSceneGLES2::_copy_texture_to_front_buffer(GLuint p_texture) {
+
+	//copy to front buffer
+	glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo);
+
+	glDepthMask(GL_FALSE);
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_CULL_FACE);
+	glDisable(GL_BLEND);
+	glDepthFunc(GL_LEQUAL);
+	glColorMask(1, 1, 1, 1);
+
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, p_texture);
+
+	glViewport(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height);
+
+	storage->shaders.copy.bind();
+
+	storage->bind_quad_array();
+	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+	glBindBuffer(GL_ARRAY_BUFFER, 0);
+}
+
 void RasterizerSceneGLES2::_fill_render_list(InstanceBase **p_cull_result, int p_cull_count, bool p_depth_pass, bool p_shadow_pass) {
 
 	render_pass++;
@@ -1208,7 +1241,8 @@ void RasterizerSceneGLES2::_fill_render_list(InstanceBase **p_cull_result, int p
 
 			} break;
 
-			default: {}
+			default: {
+			}
 		}
 	}
 }
@@ -1358,7 +1392,7 @@ void RasterizerSceneGLES2::_setup_geometry(RenderList::Element *p_element, Raste
 			for (int i = 0; i < VS::ARRAY_MAX - 1; i++) {
 				if (s->attribs[i].enabled) {
 					glEnableVertexAttribArray(i);
-					glVertexAttribPointer(s->attribs[i].index, s->attribs[i].size, s->attribs[i].type, s->attribs[i].normalized, s->attribs[i].stride, (uint8_t *)0 + s->attribs[i].offset);
+					glVertexAttribPointer(s->attribs[i].index, s->attribs[i].size, s->attribs[i].type, s->attribs[i].normalized, s->attribs[i].stride, CAST_INT_TO_UCHAR_PTR(s->attribs[i].offset));
 				} else {
 					glDisableVertexAttribArray(i);
 					switch (i) {
@@ -1369,7 +1403,8 @@ void RasterizerSceneGLES2::_setup_geometry(RenderList::Element *p_element, Raste
 							glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1);
 
 						} break;
-						default: {}
+						default: {
+						}
 					}
 				}
 			}
@@ -1519,7 +1554,7 @@ void RasterizerSceneGLES2::_setup_geometry(RenderList::Element *p_element, Raste
 			for (int i = 0; i < VS::ARRAY_MAX - 1; i++) {
 				if (s->attribs[i].enabled) {
 					glEnableVertexAttribArray(i);
-					glVertexAttribPointer(s->attribs[i].index, s->attribs[i].size, s->attribs[i].type, s->attribs[i].normalized, s->attribs[i].stride, (uint8_t *)0 + s->attribs[i].offset);
+					glVertexAttribPointer(s->attribs[i].index, s->attribs[i].size, s->attribs[i].type, s->attribs[i].normalized, s->attribs[i].stride, CAST_INT_TO_UCHAR_PTR(s->attribs[i].offset));
 				} else {
 					glDisableVertexAttribArray(i);
 					switch (i) {
@@ -1530,7 +1565,8 @@ void RasterizerSceneGLES2::_setup_geometry(RenderList::Element *p_element, Raste
 							glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1);
 
 						} break;
-						default: {}
+						default: {
+						}
 					}
 				}
 			}
@@ -1550,7 +1586,8 @@ void RasterizerSceneGLES2::_setup_geometry(RenderList::Element *p_element, Raste
 		case VS::INSTANCE_IMMEDIATE: {
 		} break;
 
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1566,8 +1603,10 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 
 			if (s->index_array_len > 0) {
 				glDrawElements(gl_primitive[s->primitive], s->index_array_len, (s->array_len >= (1 << 16)) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, 0);
+				storage->info.render.vertices_count += s->index_array_len;
 			} else {
 				glDrawArrays(gl_primitive[s->primitive], 0, s->array_len);
+				storage->info.render.vertices_count += s->array_len;
 			}
 			/*
 			if (p_element->instance->skeleton.is_valid() && s->attribs[VS::ARRAY_BONES].enabled && s->attribs[VS::ARRAY_WEIGHTS].enabled) {
@@ -1637,8 +1676,10 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 
 				if (s->index_array_len > 0) {
 					glDrawElements(gl_primitive[s->primitive], s->index_array_len, (s->array_len >= (1 << 16)) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, 0);
+					storage->info.render.vertices_count += s->index_array_len;
 				} else {
 					glDrawArrays(gl_primitive[s->primitive], 0, s->array_len);
+					storage->info.render.vertices_count += s->array_len;
 				}
 			}
 
@@ -1698,7 +1739,7 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 				if (!c.normals.empty()) {
 					glEnableVertexAttribArray(VS::ARRAY_NORMAL);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector3) * vertices, c.normals.ptr());
-					glVertexAttribPointer(VS::ARRAY_NORMAL, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_NORMAL, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Vector3) * vertices;
 				} else {
 					glDisableVertexAttribArray(VS::ARRAY_NORMAL);
@@ -1707,7 +1748,7 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 				if (!c.tangents.empty()) {
 					glEnableVertexAttribArray(VS::ARRAY_TANGENT);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Plane) * vertices, c.tangents.ptr());
-					glVertexAttribPointer(VS::ARRAY_TANGENT, 4, GL_FLOAT, GL_FALSE, sizeof(Plane), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_TANGENT, 4, GL_FLOAT, GL_FALSE, sizeof(Plane), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Plane) * vertices;
 				} else {
 					glDisableVertexAttribArray(VS::ARRAY_TANGENT);
@@ -1716,7 +1757,7 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 				if (!c.colors.empty()) {
 					glEnableVertexAttribArray(VS::ARRAY_COLOR);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Color) * vertices, c.colors.ptr());
-					glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(Color), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, sizeof(Color), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Color) * vertices;
 				} else {
 					glDisableVertexAttribArray(VS::ARRAY_COLOR);
@@ -1725,7 +1766,7 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 				if (!c.uvs.empty()) {
 					glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector2) * vertices, c.uvs.ptr());
-					glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Vector2) * vertices;
 				} else {
 					glDisableVertexAttribArray(VS::ARRAY_TEX_UV);
@@ -1734,7 +1775,7 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 				if (!c.uv2s.empty()) {
 					glEnableVertexAttribArray(VS::ARRAY_TEX_UV2);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector2) * vertices, c.uv2s.ptr());
-					glVertexAttribPointer(VS::ARRAY_TEX_UV2, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_TEX_UV2, 2, GL_FLOAT, GL_FALSE, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Vector2) * vertices;
 				} else {
 					glDisableVertexAttribArray(VS::ARRAY_TEX_UV2);
@@ -1742,7 +1783,7 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 
 				glEnableVertexAttribArray(VS::ARRAY_VERTEX);
 				glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector3) * vertices, c.vertices.ptr());
-				glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3), ((uint8_t *)NULL) + buf_ofs);
+				glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 
 				glDrawArrays(gl_primitive[c.primitive], 0, c.vertices.size());
 			}
@@ -1754,7 +1795,8 @@ void RasterizerSceneGLES2::_render_geometry(RenderList::Element *p_element) {
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -2070,7 +2112,8 @@ void RasterizerSceneGLES2::_setup_light(LightInstance *light, ShadowAtlas *shado
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -2182,6 +2225,8 @@ void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements,
 	float lightmap_energy = 1.0;
 	bool prev_use_lightmap_capture = false;
 
+	storage->info.render.draw_call_count += p_element_count;
+
 	for (int i = 0; i < p_element_count; i++) {
 		RenderList::Element *e = p_elements[i];
 
@@ -2389,11 +2434,17 @@ void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements,
 
 		if (e->owner != prev_owner || e->geometry != prev_geometry || skeleton != prev_skeleton) {
 			_setup_geometry(e, skeleton);
+			storage->info.render.surface_switch_count++;
 		}
 
 		bool shader_rebind = false;
 		if (rebind || material != prev_material) {
+
+			storage->info.render.material_switch_count++;
 			shader_rebind = _setup_material(material, p_reverse_cull, p_alpha_pass, Size2i(skeleton ? skeleton->size * 3 : 0, 0));
+			if (shader_rebind) {
+				storage->info.render.shader_rebind_count++;
+			}
 		}
 
 		if (i == 0 || shader_rebind) { //first time must rebind
@@ -2418,6 +2469,7 @@ void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements,
 
 				if (p_env) {
 					state.scene_shader.set_uniform(SceneShaderGLES2::BG_ENERGY, p_env->bg_energy);
+					state.scene_shader.set_uniform(SceneShaderGLES2::BG_COLOR, p_env->bg_color);
 					state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_SKY_CONTRIBUTION, p_env->ambient_sky_contribution);
 
 					state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_COLOR, p_env->ambient_color);
@@ -2425,6 +2477,7 @@ void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements,
 
 				} else {
 					state.scene_shader.set_uniform(SceneShaderGLES2::BG_ENERGY, 1.0);
+					state.scene_shader.set_uniform(SceneShaderGLES2::BG_COLOR, state.default_bg);
 					state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_SKY_CONTRIBUTION, 1.0);
 					state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_COLOR, state.default_ambient);
 					state.scene_shader.set_uniform(SceneShaderGLES2::AMBIENT_ENERGY, 1.0);
@@ -2527,7 +2580,6 @@ void RasterizerSceneGLES2::_render_render_list(RenderList::Element **p_elements,
 	state.scene_shader.set_conditional(SceneShaderGLES2::USE_LIGHTMAP_CAPTURE, false);
 	state.scene_shader.set_conditional(SceneShaderGLES2::FOG_DEPTH_ENABLED, false);
 	state.scene_shader.set_conditional(SceneShaderGLES2::FOG_HEIGHT_ENABLED, false);
-	state.scene_shader.set_conditional(SceneShaderGLES2::USE_RADIANCE_MAP, false);
 	state.scene_shader.set_conditional(SceneShaderGLES2::USE_DEPTH_PREPASS, false);
 }
 
@@ -2598,7 +2650,7 @@ void RasterizerSceneGLES2::_draw_sky(RasterizerStorageGLES2::Sky *p_sky, const C
 
 	// bind sky vertex array....
 	glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, 0);
-	glVertexAttribPointer(VS::ARRAY_TEX_UV, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, ((uint8_t *)NULL) + sizeof(Vector3));
+	glVertexAttribPointer(VS::ARRAY_TEX_UV, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, CAST_INT_TO_UCHAR_PTR(sizeof(Vector3)));
 	glEnableVertexAttribArray(VS::ARRAY_VERTEX);
 	glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
 
@@ -2637,6 +2689,8 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 
 	Transform cam_transform = p_cam_transform;
 
+	storage->info.render.object_count += p_cull_count;
+
 	GLuint current_fb = 0;
 	Environment *env = NULL;
 
@@ -2667,7 +2721,15 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 
 	} else {
 		state.render_no_shadows = false;
-		current_fb = storage->frame.current_rt->fbo;
+		if (storage->frame.current_rt->external.fbo != 0) {
+			current_fb = storage->frame.current_rt->external.fbo;
+		} else {
+			if (storage->frame.current_rt->multisample_active) {
+				current_fb = storage->frame.current_rt->multisample_fbo;
+			} else {
+				current_fb = storage->frame.current_rt->fbo;
+			}
+		}
 		env = environment_owner.getornull(p_environment);
 
 		viewport_width = storage->frame.current_rt->width;
@@ -2768,6 +2830,7 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 	}
 
 	state.default_ambient = Color(clear_color.r, clear_color.g, clear_color.b, 1.0);
+	state.default_bg = Color(clear_color.r, clear_color.g, clear_color.b, 1.0);
 
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
@@ -2807,6 +2870,7 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 	if (probe_interior) {
 		env_radiance_tex = 0; //do not use radiance texture on interiors
 		state.default_ambient = Color(0, 0, 0, 1); //black as default ambient for interior
+		state.default_bg = Color(0, 0, 0, 1); //black as default background for interior
 	}
 
 	// render opaque things first
@@ -2815,19 +2879,66 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 
 	if (storage->frame.current_rt && state.used_screen_texture) {
 		//copy screen texture
+
+		if (storage->frame.current_rt && storage->frame.current_rt->multisample_active) {
+			// Resolve framebuffer to front buffer before copying
+#ifdef GLES_OVER_GL
+
+			glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->multisample_fbo);
+			glReadBuffer(GL_COLOR_ATTACHMENT0);
+			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
+			glBlitFramebuffer(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, 0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST);
+
+			glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
+			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+#elif IPHONE_ENABLED
+			glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->multisample_fbo);
+			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
+			glResolveMultisampleFramebufferAPPLE();
+
+			glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
+			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+#else
+			// In GLES2 Blit is not available, so just copy color texture manually
+			_copy_texture_to_front_buffer(storage->frame.current_rt->multisample_color);
+#endif
+		}
+
 		storage->canvas->_copy_screen(Rect2());
+
+		if (storage->frame.current_rt && storage->frame.current_rt->multisample_active) {
+			// Rebind the current framebuffer
+			glBindFramebuffer(GL_FRAMEBUFFER, current_fb);
+			glViewport(0, 0, viewport_width, viewport_height);
+		}
 	}
 	// alpha pass
 
 	glBlendEquation(GL_FUNC_ADD);
 	glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
 
-	render_list.sort_by_depth(true);
+	render_list.sort_by_reverse_depth_and_priority(true);
 
 	_render_render_list(&render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, cam_transform, p_cam_projection, p_shadow_atlas, env, env_radiance_tex, 0.0, 0.0, reverse_cull, true, false);
 
 	glDisable(GL_DEPTH_TEST);
 
+	if (storage->frame.current_rt && storage->frame.current_rt->multisample_active) {
+#ifdef GLES_OVER_GL
+
+		glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->multisample_fbo);
+		glReadBuffer(GL_COLOR_ATTACHMENT0);
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
+		glBlitFramebuffer(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, 0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST);
+
+		glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+#else
+		// In GLES2 Blit is not available, so just copy color texture manually
+		_copy_texture_to_front_buffer(storage->frame.current_rt->multisample_color);
+#endif
+	}
+
 	//#define GLES2_SHADOW_ATLAS_DEBUG_VIEW
 
 #ifdef GLES2_SHADOW_ATLAS_DEBUG_VIEW
diff --git a/drivers/gles2/rasterizer_scene_gles2.h b/drivers/gles2/rasterizer_scene_gles2.h
index f23e45b52f..d805984dca 100644
--- a/drivers/gles2/rasterizer_scene_gles2.h
+++ b/drivers/gles2/rasterizer_scene_gles2.h
@@ -104,6 +104,7 @@ public:
 
 		GLuint immediate_buffer;
 		Color default_ambient;
+		Color default_bg;
 
 		// ResolveShaderGLES3 resolve_shader;
 		// ScreenSpaceReflectionShaderGLES3 ssr_shader;
@@ -502,7 +503,8 @@ public:
 		enum {
 			MAX_LIGHTS = 255,
 			MAX_REFLECTION_PROBES = 255,
-			DEFAULT_MAX_ELEMENTS = 65536
+			DEFAULT_MAX_ELEMENTS = 65536,
+			SORT_KEY_PRIORITY_SHIFT = 56
 		};
 
 		int max_elements;
@@ -598,6 +600,29 @@ public:
 			}
 		}
 
+		struct SortByReverseDepthAndPriority {
+
+			_FORCE_INLINE_ bool operator()(const Element *A, const Element *B) const {
+				uint32_t layer_A = uint32_t(A->sort_key >> SORT_KEY_PRIORITY_SHIFT);
+				uint32_t layer_B = uint32_t(B->sort_key >> SORT_KEY_PRIORITY_SHIFT);
+				if (layer_A == layer_B) {
+					return A->instance->depth > B->instance->depth;
+				} else {
+					return layer_A < layer_B;
+				}
+			}
+		};
+
+		void sort_by_reverse_depth_and_priority(bool p_alpha) { //used for alpha
+
+			SortArray<Element *, SortByReverseDepthAndPriority> sorter;
+			if (p_alpha) {
+				sorter.sort(&elements[max_elements - alpha_element_count], alpha_element_count);
+			} else {
+				sorter.sort(elements, element_count);
+			}
+		}
+
 		// element adding and stuff
 
 		_FORCE_INLINE_ Element *add_element() {
@@ -646,6 +671,7 @@ public:
 	void _add_geometry(RasterizerStorageGLES2::Geometry *p_geometry, InstanceBase *p_instance, RasterizerStorageGLES2::GeometryOwner *p_owner, int p_material, bool p_depth_pass, bool p_shadow_pass);
 	void _add_geometry_with_material(RasterizerStorageGLES2::Geometry *p_geometry, InstanceBase *p_instance, RasterizerStorageGLES2::GeometryOwner *p_owner, RasterizerStorageGLES2::Material *p_material, bool p_depth_pass, bool p_shadow_pass);
 
+	void _copy_texture_to_front_buffer(GLuint texture);
 	void _fill_render_list(InstanceBase **p_cull_result, int p_cull_count, bool p_depth_pass, bool p_shadow_pass);
 	void _render_render_list(RenderList::Element **p_elements, int p_element_count,
 			const Transform &p_view_transform,
diff --git a/drivers/gles2/rasterizer_storage_gles2.cpp b/drivers/gles2/rasterizer_storage_gles2.cpp
index 206679dda3..d709056709 100644
--- a/drivers/gles2/rasterizer_storage_gles2.cpp
+++ b/drivers/gles2/rasterizer_storage_gles2.cpp
@@ -81,10 +81,32 @@ GLuint RasterizerStorageGLES2::system_fbo = 0;
 
 #define _DEPTH_COMPONENT24_OES 0x81A6
 
+#ifndef GLES_OVER_GL
+// enable extensions manually for android and ios
+#include <dlfcn.h> // needed to load extensions
+
+#ifdef IPHONE_ENABLED
+
+#include <OpenGLES/ES2/glext.h>
+//void *glRenderbufferStorageMultisampleAPPLE;
+//void *glResolveMultisampleFramebufferAPPLE;
+#define glRenderbufferStorageMultisample glRenderbufferStorageMultisampleAPPLE
+#else
+
+#include <GLES2/gl2ext.h>
+PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT;
+PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC glFramebufferTexture2DMultisampleEXT;
+#define glRenderbufferStorageMultisample glRenderbufferStorageMultisampleEXT
+#define glFramebufferTexture2DMultisample glFramebufferTexture2DMultisampleEXT
+#endif
+
+#define GL_MAX_SAMPLES 0x8D57
+#endif //!GLES_OVER_GL
+
 void RasterizerStorageGLES2::bind_quad_array() const {
 	glBindBuffer(GL_ARRAY_BUFFER, resources.quadie);
 	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, 0);
-	glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, ((uint8_t *)NULL) + 8);
+	glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, CAST_INT_TO_UCHAR_PTR(8));
 
 	glEnableVertexAttribArray(VS::ARRAY_VERTEX);
 	glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
@@ -774,10 +796,7 @@ Ref<Image> RasterizerStorageGLES2::texture_get_data(RID p_texture, int p_layer)
 
 	for (int i = 0; i < texture->mipmaps; i++) {
 
-		int ofs = 0;
-		if (i > 0) {
-			ofs = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, real_format, i - 1);
-		}
+		int ofs = Image::get_image_mipmap_offset(texture->alloc_width, texture->alloc_height, real_format, i);
 
 		if (texture->compressed) {
 			glPixelStorei(GL_PACK_ALIGNMENT, 4);
@@ -1557,6 +1576,10 @@ void RasterizerStorageGLES2::shader_get_param_list(RID p_shader, List<PropertyIn
 
 			case ShaderLanguage::TYPE_FLOAT: {
 				pi.type = Variant::REAL;
+				if (u.hint == ShaderLanguage::ShaderNode::Uniform::HINT_RANGE) {
+					pi.hint = PROPERTY_HINT_RANGE;
+					pi.hint_string = rtos(u.hint_range[0]) + "," + rtos(u.hint_range[1]) + "," + rtos(u.hint_range[2]);
+				}
 			} break;
 
 			case ShaderLanguage::TYPE_VEC2: {
@@ -3708,6 +3731,7 @@ RID RasterizerStorageGLES2::light_create(VS::LightType p_type) {
 	light->directional_blend_splits = false;
 	light->directional_range_mode = VS::LIGHT_DIRECTIONAL_SHADOW_DEPTH_RANGE_STABLE;
 	light->reverse_cull = false;
+	light->use_gi = true;
 	light->version = 0;
 
 	return light_owner.make_rid(light);
@@ -3737,7 +3761,8 @@ void RasterizerStorageGLES2::light_set_param(RID p_light, VS::LightParam p_param
 			light->version++;
 			light->instance_change_notify(true, false);
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	light->param[p_param] = p_value;
@@ -3794,6 +3819,16 @@ void RasterizerStorageGLES2::light_set_reverse_cull_face_mode(RID p_light, bool
 	light->instance_change_notify(true, false);
 }
 
+void RasterizerStorageGLES2::light_set_use_gi(RID p_light, bool p_enabled) {
+	Light *light = light_owner.getornull(p_light);
+	ERR_FAIL_COND(!light);
+
+	light->use_gi = p_enabled;
+
+	light->version++;
+	light->instance_change_notify(true, false);
+}
+
 void RasterizerStorageGLES2::light_omni_set_shadow_mode(RID p_light, VS::LightOmniShadowMode p_mode) {
 	Light *light = light_owner.getornull(p_light);
 	ERR_FAIL_COND(!light);
@@ -3889,6 +3924,13 @@ Color RasterizerStorageGLES2::light_get_color(RID p_light) {
 	return light->color;
 }
 
+bool RasterizerStorageGLES2::light_get_use_gi(RID p_light) {
+	Light *light = light_owner.getornull(p_light);
+	ERR_FAIL_COND_V(!light, false);
+
+	return light->use_gi;
+}
+
 bool RasterizerStorageGLES2::light_has_shadow(RID p_light) const {
 	Light *light = light_owner.getornull(p_light);
 	ERR_FAIL_COND_V(!light, false);
@@ -4529,95 +4571,174 @@ void RasterizerStorageGLES2::_render_target_allocate(RenderTarget *rt) {
 	if (rt->width <= 0 || rt->height <= 0)
 		return;
 
-	Texture *texture = texture_owner.getornull(rt->texture);
-	ERR_FAIL_COND(!texture);
-
-	// create fbo
-
-	glGenFramebuffers(1, &rt->fbo);
-	glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
-
-	// color
-
-	glGenTextures(1, &rt->color);
-	glBindTexture(GL_TEXTURE_2D, rt->color);
+	GLuint color_internal_format;
+	GLuint color_format;
+	GLuint color_type = GL_UNSIGNED_BYTE;
 
 	if (rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]) {
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, rt->width, rt->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+		color_internal_format = GL_RGBA;
+		color_format = GL_RGBA;
 	} else {
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, rt->width, rt->height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
+		color_internal_format = GL_RGB;
+		color_format = GL_RGB;
 	}
 
-	if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
+	{
 
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	} else {
+		/* Front FBO */
 
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-	}
-	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+		Texture *texture = texture_owner.getornull(rt->texture);
+		ERR_FAIL_COND(!texture);
 
-	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->color, 0);
+		// framebuffer
+		glGenFramebuffers(1, &rt->fbo);
+		glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
 
-	// depth
+		// color
+		glGenTextures(1, &rt->color);
+		glBindTexture(GL_TEXTURE_2D, rt->color);
 
-	if (config.support_depth_texture) {
-		glGenTextures(1, &rt->depth);
-		glBindTexture(GL_TEXTURE_2D, rt->depth);
-		glTexImage2D(GL_TEXTURE_2D, 0, config.depth_internalformat, rt->width, rt->height, 0, GL_DEPTH_COMPONENT, config.depth_type, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, color_internal_format, rt->width, rt->height, 0, color_format, color_type, NULL);
 
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+		if (texture->flags & VS::TEXTURE_FLAG_FILTER) {
 
-		glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, rt->depth, 0);
-	} else {
-		glGenRenderbuffers(1, &rt->depth);
-		glBindRenderbuffer(GL_RENDERBUFFER, rt->depth);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+		} else {
 
-		glRenderbufferStorage(GL_RENDERBUFFER, config.depth_internalformat, rt->width, rt->height);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+		}
 
-		glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rt->depth);
-	}
+		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
-	GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+		glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->color, 0);
 
-	if (status != GL_FRAMEBUFFER_COMPLETE) {
+		// depth
 
-		glDeleteFramebuffers(1, &rt->fbo);
 		if (config.support_depth_texture) {
-			glDeleteTextures(1, &rt->depth);
+
+			glGenTextures(1, &rt->depth);
+			glBindTexture(GL_TEXTURE_2D, rt->depth);
+			glTexImage2D(GL_TEXTURE_2D, 0, config.depth_internalformat, rt->width, rt->height, 0, GL_DEPTH_COMPONENT, config.depth_type, NULL);
+
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, rt->depth, 0);
 		} else {
-			glDeleteRenderbuffers(1, &rt->depth);
+
+			glGenRenderbuffers(1, &rt->depth);
+			glBindRenderbuffer(GL_RENDERBUFFER, rt->depth);
+
+			glRenderbufferStorage(GL_RENDERBUFFER, config.depth_internalformat, rt->width, rt->height);
+
+			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rt->depth);
 		}
-		glDeleteTextures(1, &rt->color);
-		rt->fbo = 0;
-		rt->width = 0;
-		rt->height = 0;
-		rt->color = 0;
-		rt->depth = 0;
-		texture->tex_id = 0;
-		texture->active = false;
-		WARN_PRINT("Could not create framebuffer!!");
-		return;
+
+		GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+
+		if (status != GL_FRAMEBUFFER_COMPLETE) {
+
+			glDeleteFramebuffers(1, &rt->fbo);
+			if (config.support_depth_texture) {
+
+				glDeleteTextures(1, &rt->depth);
+			} else {
+
+				glDeleteRenderbuffers(1, &rt->depth);
+			}
+
+			glDeleteTextures(1, &rt->color);
+			rt->fbo = 0;
+			rt->width = 0;
+			rt->height = 0;
+			rt->color = 0;
+			rt->depth = 0;
+			texture->tex_id = 0;
+			texture->active = false;
+			WARN_PRINT("Could not create framebuffer!!");
+			return;
+		}
+
+		texture->format = Image::FORMAT_RGBA8;
+		texture->gl_format_cache = GL_RGBA;
+		texture->gl_type_cache = GL_UNSIGNED_BYTE;
+		texture->gl_internal_format_cache = GL_RGBA;
+		texture->tex_id = rt->color;
+		texture->width = rt->width;
+		texture->alloc_width = rt->width;
+		texture->height = rt->height;
+		texture->alloc_height = rt->height;
+		texture->active = true;
+
+		texture_set_flags(rt->texture, texture->flags);
 	}
 
-	texture->format = Image::FORMAT_RGBA8;
-	texture->gl_format_cache = GL_RGBA;
-	texture->gl_type_cache = GL_UNSIGNED_BYTE;
-	texture->gl_internal_format_cache = GL_RGBA;
-	texture->tex_id = rt->color;
-	texture->width = rt->width;
-	texture->alloc_width = rt->width;
-	texture->height = rt->height;
-	texture->alloc_height = rt->height;
-	texture->active = true;
+	/* BACK FBO */
+	/* For MSAA */
+
+	if (rt->msaa != VS::VIEWPORT_MSAA_DISABLED && config.multisample_supported) {
+
+		rt->multisample_active = true;
+
+		static const int msaa_value[] = { 0, 2, 4, 8, 16 };
+		int msaa = msaa_value[rt->msaa];
+
+		int max_samples = 0;
+		glGetIntegerv(GL_MAX_SAMPLES, &max_samples);
+		if (msaa > max_samples) {
+			WARN_PRINTS("MSAA must be <= GL_MAX_SAMPLES, falling-back to GL_MAX_SAMPLES = " + itos(max_samples));
+			msaa = max_samples;
+		}
 
-	texture_set_flags(rt->texture, texture->flags);
+		//regular fbo
+		glGenFramebuffers(1, &rt->multisample_fbo);
+		glBindFramebuffer(GL_FRAMEBUFFER, rt->multisample_fbo);
+
+		glGenRenderbuffers(1, &rt->multisample_depth);
+		glBindRenderbuffer(GL_RENDERBUFFER, rt->multisample_depth);
+		glRenderbufferStorageMultisample(GL_RENDERBUFFER, msaa, config.depth_internalformat, rt->width, rt->height);
+
+		glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rt->multisample_depth);
+
+#if defined(GLES_OVER_GL) || defined(IPHONE_ENABLED)
+
+		glGenRenderbuffers(1, &rt->multisample_color);
+		glBindRenderbuffer(GL_RENDERBUFFER, rt->multisample_color);
+		glRenderbufferStorageMultisample(GL_RENDERBUFFER, msaa, color_internal_format, rt->width, rt->height);
+
+		glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rt->multisample_color);
+#else
+		// Render to a texture in android
+		glGenTextures(1, &rt->multisample_color);
+		glBindTexture(GL_TEXTURE_2D, rt->multisample_color);
+
+		glTexImage2D(GL_TEXTURE_2D, 0, color_internal_format, rt->width, rt->height, 0, color_format, color_type, NULL);
+
+		// multisample buffer is same size as front buffer, so just use nearest
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+		glFramebufferTexture2DMultisample(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->color, 0, msaa);
+#endif
+
+		GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+
+		if (status != GL_FRAMEBUFFER_COMPLETE) {
+			printf("err status: %x\n", status);
+			_render_target_clear(rt);
+			ERR_FAIL_COND(status != GL_FRAMEBUFFER_COMPLETE);
+		}
+
+		glBindRenderbuffer(GL_RENDERBUFFER, 0);
+
+	} else {
+		rt->multisample_active = false;
+	}
 
 	glClearColor(0, 0, 0, 0);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@@ -4646,7 +4767,7 @@ void RasterizerStorageGLES2::_render_target_allocate(RenderTarget *rt) {
 		glClearColor(0, 0, 0, 0);
 		glClear(GL_COLOR_BUFFER_BIT);
 
-		status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+		GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
 		if (status != GL_FRAMEBUFFER_COMPLETE) {
 			_render_target_clear(rt);
 			ERR_FAIL_COND(status != GL_FRAMEBUFFER_COMPLETE);
@@ -4664,6 +4785,23 @@ void RasterizerStorageGLES2::_render_target_clear(RenderTarget *rt) {
 		rt->fbo = 0;
 	}
 
+	if (rt->external.fbo != 0) {
+		// free this
+		glDeleteFramebuffers(1, &rt->external.fbo);
+
+		// clean up our texture
+		Texture *t = texture_owner.get(rt->external.texture);
+		t->alloc_height = 0;
+		t->alloc_width = 0;
+		t->width = 0;
+		t->height = 0;
+		t->active = false;
+		texture_owner.free(rt->external.texture);
+		memdelete(t);
+
+		rt->external.fbo = 0;
+	}
+
 	if (rt->depth) {
 		if (config.support_depth_texture) {
 			glDeleteTextures(1, &rt->depth);
@@ -4688,6 +4826,20 @@ void RasterizerStorageGLES2::_render_target_clear(RenderTarget *rt) {
 		glDeleteTextures(1, &rt->copy_screen_effect.color);
 		rt->copy_screen_effect.color = 0;
 	}
+
+	if (rt->multisample_active) {
+		glDeleteFramebuffers(1, &rt->multisample_fbo);
+		rt->multisample_fbo = 0;
+
+		glDeleteRenderbuffers(1, &rt->multisample_depth);
+		rt->multisample_depth = 0;
+#ifdef GLES_OVER_GL
+		glDeleteRenderbuffers(1, &rt->multisample_color);
+#else
+		glDeleteTextures(1, &rt->multisample_color);
+#endif
+		rt->multisample_color = 0;
+	}
 }
 
 RID RasterizerStorageGLES2::render_target_create() {
@@ -4742,7 +4894,108 @@ RID RasterizerStorageGLES2::render_target_get_texture(RID p_render_target) const
 	RenderTarget *rt = render_target_owner.getornull(p_render_target);
 	ERR_FAIL_COND_V(!rt, RID());
 
-	return rt->texture;
+	if (rt->external.fbo == 0) {
+		return rt->texture;
+	} else {
+		return rt->external.texture;
+	}
+}
+
+void RasterizerStorageGLES2::render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id) {
+	RenderTarget *rt = render_target_owner.getornull(p_render_target);
+	ERR_FAIL_COND(!rt);
+
+	if (p_texture_id == 0) {
+		if (rt->external.fbo != 0) {
+			// free this
+			glDeleteFramebuffers(1, &rt->external.fbo);
+
+			// clean up our texture
+			Texture *t = texture_owner.get(rt->external.texture);
+			t->alloc_height = 0;
+			t->alloc_width = 0;
+			t->width = 0;
+			t->height = 0;
+			t->active = false;
+			texture_owner.free(rt->external.texture);
+			memdelete(t);
+
+			rt->external.fbo = 0;
+			rt->external.color = 0;
+		}
+	} else {
+		Texture *t;
+
+		if (rt->external.fbo == 0) {
+			// create our fbo
+			glGenFramebuffers(1, &rt->external.fbo);
+			glBindFramebuffer(GL_FRAMEBUFFER, rt->external.fbo);
+
+			// allocate a texture
+			t = memnew(Texture);
+
+			t->type = VS::TEXTURE_TYPE_2D;
+			t->flags = 0;
+			t->width = 0;
+			t->height = 0;
+			t->alloc_height = 0;
+			t->alloc_width = 0;
+			t->format = Image::FORMAT_RGBA8;
+			t->target = GL_TEXTURE_2D;
+			t->gl_format_cache = 0;
+			t->gl_internal_format_cache = 0;
+			t->gl_type_cache = 0;
+			t->data_size = 0;
+			t->compressed = false;
+			t->srgb = false;
+			t->total_data_size = 0;
+			t->ignore_mipmaps = false;
+			t->mipmaps = 1;
+			t->active = true;
+			t->tex_id = 0;
+			t->render_target = rt;
+
+			rt->external.texture = texture_owner.make_rid(t);
+		} else {
+			// bind our frame buffer
+			glBindFramebuffer(GL_FRAMEBUFFER, rt->external.fbo);
+
+			// find our texture
+			t = texture_owner.get(rt->external.texture);
+		}
+
+		// set our texture
+		t->tex_id = p_texture_id;
+		rt->external.color = p_texture_id;
+
+		// size shouldn't be different
+		t->width = rt->width;
+		t->height = rt->height;
+		t->alloc_height = rt->width;
+		t->alloc_width = rt->height;
+
+		// is there a point to setting the internal formats? we don't know them..
+
+		// set our texture as the destination for our framebuffer
+		glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, p_texture_id, 0);
+
+		// seeing we're rendering into this directly, better also use our depth buffer, just use our existing one :)
+		if (config.support_depth_texture) {
+			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, rt->depth, 0);
+		} else {
+			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rt->depth);
+		}
+
+		// check status and unbind
+		GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+		glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo);
+
+		if (status != GL_FRAMEBUFFER_COMPLETE) {
+			printf("framebuffer fail, status: %x\n", status);
+		}
+
+		ERR_FAIL_COND(status != GL_FRAMEBUFFER_COMPLETE);
+	}
 }
 
 void RasterizerStorageGLES2::render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value) {
@@ -4762,7 +5015,8 @@ void RasterizerStorageGLES2::render_target_set_flag(RID p_render_target, RenderT
 			_render_target_allocate(rt);
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -4787,6 +5041,11 @@ void RasterizerStorageGLES2::render_target_set_msaa(RID p_render_target, VS::Vie
 	if (rt->msaa == p_msaa)
 		return;
 
+	if (!config.multisample_supported) {
+		ERR_PRINT("MSAA not supported on this hardware.");
+		return;
+	}
+
 	_render_target_clear(rt);
 	rt->msaa = p_msaa;
 	_render_target_allocate(rt);
@@ -5208,18 +5467,72 @@ void RasterizerStorageGLES2::set_debug_generate_wireframes(bool p_generate) {
 }
 
 void RasterizerStorageGLES2::render_info_begin_capture() {
+
+	info.snap = info.render;
 }
 
 void RasterizerStorageGLES2::render_info_end_capture() {
+
+	info.snap.object_count = info.render.object_count - info.snap.object_count;
+	info.snap.draw_call_count = info.render.draw_call_count - info.snap.draw_call_count;
+	info.snap.material_switch_count = info.render.material_switch_count - info.snap.material_switch_count;
+	info.snap.surface_switch_count = info.render.surface_switch_count - info.snap.surface_switch_count;
+	info.snap.shader_rebind_count = info.render.shader_rebind_count - info.snap.shader_rebind_count;
+	info.snap.vertices_count = info.render.vertices_count - info.snap.vertices_count;
 }
 
 int RasterizerStorageGLES2::get_captured_render_info(VS::RenderInfo p_info) {
 
-	return get_render_info(p_info);
+	switch (p_info) {
+		case VS::INFO_OBJECTS_IN_FRAME: {
+			return info.snap.object_count;
+		} break;
+		case VS::INFO_VERTICES_IN_FRAME: {
+			return info.snap.vertices_count;
+		} break;
+		case VS::INFO_MATERIAL_CHANGES_IN_FRAME: {
+			return info.snap.material_switch_count;
+		} break;
+		case VS::INFO_SHADER_CHANGES_IN_FRAME: {
+			return info.snap.shader_rebind_count;
+		} break;
+		case VS::INFO_SURFACE_CHANGES_IN_FRAME: {
+			return info.snap.surface_switch_count;
+		} break;
+		case VS::INFO_DRAW_CALLS_IN_FRAME: {
+			return info.snap.draw_call_count;
+		} break;
+		default: {
+			return get_render_info(p_info);
+		}
+	}
 }
 
 int RasterizerStorageGLES2::get_render_info(VS::RenderInfo p_info) {
-	return 0;
+	switch (p_info) {
+		case VS::INFO_OBJECTS_IN_FRAME:
+			return info.render_final.object_count;
+		case VS::INFO_VERTICES_IN_FRAME:
+			return info.render_final.vertices_count;
+		case VS::INFO_MATERIAL_CHANGES_IN_FRAME:
+			return info.render_final.material_switch_count;
+		case VS::INFO_SHADER_CHANGES_IN_FRAME:
+			return info.render_final.shader_rebind_count;
+		case VS::INFO_SURFACE_CHANGES_IN_FRAME:
+			return info.render_final.surface_switch_count;
+		case VS::INFO_DRAW_CALLS_IN_FRAME:
+			return info.render_final.draw_call_count;
+		case VS::INFO_USAGE_VIDEO_MEM_TOTAL:
+			return 0; //no idea
+		case VS::INFO_VIDEO_MEM_USED:
+			return info.vertex_mem + info.texture_mem;
+		case VS::INFO_TEXTURE_MEM_USED:
+			return info.texture_mem;
+		case VS::INFO_VERTEX_MEM_USED:
+			return info.vertex_mem;
+		default:
+			return 0; //no idea either
+	}
 }
 
 void RasterizerStorageGLES2::initialize() {
@@ -5256,6 +5569,26 @@ void RasterizerStorageGLES2::initialize() {
 	config.support_npot_repeat_mipmap = config.extensions.has("GL_OES_texture_npot");
 
 #endif
+
+#ifndef GLES_OVER_GL
+	//Manually load extensions for android and ios
+
+#ifdef IPHONE_ENABLED
+
+	//void *gles2_lib = dlopen(NULL, RTLD_LAZY);
+	//glRenderbufferStorageMultisampleAPPLE = dlsym(gles2_lib, "glRenderbufferStorageMultisampleAPPLE");
+	//glResolveMultisampleFramebufferAPPLE = dlsym(gles2_lib, "glResolveMultisampleFramebufferAPPLE");
+#else
+
+	void *gles2_lib = dlopen("libGLESv2.so", RTLD_LAZY);
+	glRenderbufferStorageMultisampleEXT = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)dlsym(gles2_lib, "glRenderbufferStorageMultisampleEXT");
+	glFramebufferTexture2DMultisampleEXT = (PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC)dlsym(gles2_lib, "glFramebufferTexture2DMultisampleEXT");
+#endif
+#endif
+
+	// Check for multisample support
+	config.multisample_supported = config.extensions.has("GL_EXT_framebuffer_multisample") || config.extensions.has("GL_EXT_multisampled_render_to_texture") || config.extensions.has("GL_APPLE_framebuffer_multisample");
+
 #ifdef GLES_OVER_GL
 	config.use_rgba_2d_shadows = false;
 	config.support_depth_texture = true;
diff --git a/drivers/gles2/rasterizer_storage_gles2.h b/drivers/gles2/rasterizer_storage_gles2.h
index 361f304a17..3134082e2a 100644
--- a/drivers/gles2/rasterizer_storage_gles2.h
+++ b/drivers/gles2/rasterizer_storage_gles2.h
@@ -92,6 +92,8 @@ public:
 
 		bool support_shadow_cubemaps;
 
+		bool multisample_supported;
+
 		GLuint depth_internalformat;
 		GLuint depth_type;
 
@@ -910,6 +912,7 @@ public:
 		bool shadow;
 		bool negative;
 		bool reverse_cull;
+		bool use_gi;
 
 		uint32_t cull_mask;
 
@@ -936,6 +939,7 @@ public:
 	virtual void light_set_negative(RID p_light, bool p_enable);
 	virtual void light_set_cull_mask(RID p_light, uint32_t p_mask);
 	virtual void light_set_reverse_cull_face_mode(RID p_light, bool p_enabled);
+	virtual void light_set_use_gi(RID p_light, bool p_enabled);
 
 	virtual void light_omni_set_shadow_mode(RID p_light, VS::LightOmniShadowMode p_mode);
 	virtual void light_omni_set_shadow_detail(RID p_light, VS::LightOmniShadowDetail p_detail);
@@ -955,6 +959,7 @@ public:
 	virtual VS::LightType light_get_type(RID p_light) const;
 	virtual float light_get_param(RID p_light, VS::LightParam p_param);
 	virtual Color light_get_color(RID p_light);
+	virtual bool light_get_use_gi(RID p_light);
 
 	virtual AABB light_get_aabb(RID p_light) const;
 	virtual uint64_t light_get_version(RID p_light) const;
@@ -1129,10 +1134,14 @@ public:
 
 	struct RenderTarget : public RID_Data {
 		GLuint fbo;
-
 		GLuint color;
 		GLuint depth;
 
+		GLuint multisample_fbo;
+		GLuint multisample_color;
+		GLuint multisample_depth;
+		bool multisample_active;
+
 		// TODO post processing effects?
 
 		// TODO HDR?
@@ -1156,6 +1165,16 @@ public:
 
 		Effect copy_screen_effect;
 
+		struct External {
+			GLuint fbo;
+			GLuint color;
+			RID texture;
+
+			External() :
+					fbo(0) {
+			}
+		} external;
+
 		int width, height;
 
 		bool flags[RENDER_TARGET_FLAG_MAX];
@@ -1169,6 +1188,10 @@ public:
 				fbo(0),
 				color(0),
 				depth(0),
+				multisample_fbo(0),
+				multisample_color(0),
+				multisample_depth(0),
+				multisample_active(false),
 				width(0),
 				height(0),
 				used_in_frame(false),
@@ -1176,6 +1199,7 @@ public:
 			for (int i = 0; i < RENDER_TARGET_FLAG_MAX; ++i) {
 				flags[i] = false;
 			}
+			external.fbo = 0;
 		}
 	};
 
@@ -1187,6 +1211,7 @@ public:
 	virtual RID render_target_create();
 	virtual void render_target_set_size(RID p_render_target, int p_width, int p_height);
 	virtual RID render_target_get_texture(RID p_render_target) const;
+	virtual void render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id);
 
 	virtual void render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value);
 	virtual bool render_target_was_used(RID p_render_target);
diff --git a/drivers/gles2/shaders/effect_blur.glsl b/drivers/gles2/shaders/effect_blur.glsl
index a531802c75..df79e89931 100644
--- a/drivers/gles2/shaders/effect_blur.glsl
+++ b/drivers/gles2/shaders/effect_blur.glsl
@@ -116,12 +116,13 @@ void main() {
 #ifdef GAUSSIAN_HORIZONTAL
 	vec2 pix_size = pixel_size;
 	pix_size *= 0.5; //reading from larger buffer, so use more samples
+	// sigma 2
 	vec4 color = textureLod(source_color, uv_interp + vec2(0.0, 0.0) * pix_size, lod) * 0.214607;
 	color += textureLod(source_color, uv_interp + vec2(1.0, 0.0) * pix_size, lod) * 0.189879;
-	color += textureLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.157305;
+	color += textureLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.131514;
 	color += textureLod(source_color, uv_interp + vec2(3.0, 0.0) * pix_size, lod) * 0.071303;
 	color += textureLod(source_color, uv_interp + vec2(-1.0, 0.0) * pix_size, lod) * 0.189879;
-	color += textureLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.157305;
+	color += textureLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.131514;
 	color += textureLod(source_color, uv_interp + vec2(-3.0, 0.0) * pix_size, lod) * 0.071303;
 	frag_color = color;
 #endif
diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl
index 7e59b63935..0fa290e57c 100644
--- a/drivers/gles2/shaders/scene.glsl
+++ b/drivers/gles2/shaders/scene.glsl
@@ -424,9 +424,12 @@ void main() {
 
 #endif
 
+	mat4 local_projection_matrix = projection_matrix;
+
 	mat4 modelview = camera_inverse_matrix * world_matrix;
 	float roughness = 1.0;
 
+#define projection_matrix local_projection_matrix
 #define world_transform world_matrix
 
 	{
@@ -911,6 +914,7 @@ uniform mat4 radiance_inverse_xform;
 
 #endif
 
+uniform vec4 bg_color;
 uniform float bg_energy;
 
 uniform float ambient_sky_contribution;
@@ -1466,6 +1470,9 @@ void main() {
 	float anisotropy = 0.0;
 	vec2 anisotropy_flow = vec2(1.0, 0.0);
 	float sss_strength = 0.0; //unused
+	// gl_FragDepth is not available in GLES2, so writing to DEPTH is not converted to gl_FragDepth by Godot compiler resulting in a
+	// compile error because DEPTH is not a variable.
+	float m_DEPTH = 0.0;
 
 	float alpha = 1.0;
 	float side = 1.0;
@@ -1542,6 +1549,11 @@ FRAGMENT_SHADER_CODE
 
 #ifdef BASE_PASS
 	//none
+
+#ifdef AMBIENT_LIGHT_DISABLED
+	ambient_light = vec3(0.0, 0.0, 0.0);
+#else
+
 #ifdef USE_RADIANCE_MAP
 
 	vec3 ref_vec = reflect(-eye_position, N);
@@ -1550,7 +1562,6 @@ FRAGMENT_SHADER_CODE
 	ref_vec.z *= -1.0;
 
 	specular_light = textureCubeLod(radiance_map, ref_vec, roughness * RADIANCE_MAX_LOD).xyz * bg_energy;
-
 	{
 		vec3 ambient_dir = normalize((radiance_inverse_xform * vec4(normal, 0.0)).xyz);
 		vec3 env_ambient = textureCubeLod(radiance_map, ambient_dir, RADIANCE_MAX_LOD).xyz * bg_energy;
@@ -1561,9 +1572,11 @@ FRAGMENT_SHADER_CODE
 #else
 
 	ambient_light = ambient_color.rgb;
+	specular_light = bg_color.rgb * bg_energy;
 
 #endif
 
+#endif // AMBIENT_LIGHT_DISABLED
 	ambient_light *= ambient_energy;
 
 #if defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2)
@@ -1619,6 +1632,19 @@ FRAGMENT_SHADER_CODE
 
 #endif // defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2)
 
+	// scales the specular reflections, needs to be be computed before lighting happens,
+	// but after environment and reflection probes are added
+	//TODO: this curve is not really designed for gammaspace, should be adjusted
+	const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022);
+	const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04);
+	vec4 r = roughness * c0 + c1;
+	float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0);
+	float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y;
+	vec2 env = vec2(-1.04, 1.04) * a004 + r.zw;
+
+	vec3 f0 = F0(metallic, specular, albedo);
+	specular_light *= env.x * f0 + env.y;
+
 #ifdef USE_LIGHTMAP
 	//ambient light will come entirely from lightmap is lightmap is used
 	ambient_light = texture2D(lightmap, uv2_interp).rgb * lightmap_energy;
@@ -1690,6 +1716,8 @@ FRAGMENT_SHADER_CODE
 
 #endif
 
+#if !defined(SHADOWS_DISABLED)
+
 #ifdef USE_SHADOW
 	{
 		highp vec4 splane = shadow_coord;
@@ -1720,6 +1748,8 @@ FRAGMENT_SHADER_CODE
 	}
 #endif
 
+#endif //SHADOWS_DISABLED
+
 #endif //type omni
 
 #ifdef LIGHT_MODE_DIRECTIONAL
@@ -1730,6 +1760,8 @@ FRAGMENT_SHADER_CODE
 #endif
 	float depth_z = -vertex.z;
 
+#if !defined(SHADOWS_DISABLED)
+
 #ifdef USE_SHADOW
 
 #ifdef USE_VERTEX_LIGHTING
@@ -1948,6 +1980,8 @@ FRAGMENT_SHADER_CODE
 
 #endif //use shadow
 
+#endif // SHADOWS_DISABLED
+
 #endif
 
 #ifdef LIGHT_MODE_SPOT
@@ -1984,6 +2018,8 @@ FRAGMENT_SHADER_CODE
 
 #endif
 
+#if !defined(SHADOWS_DISABLED)
+
 #ifdef USE_SHADOW
 	{
 		highp vec4 splane = shadow_coord;
@@ -1993,6 +2029,8 @@ FRAGMENT_SHADER_CODE
 	}
 #endif
 
+#endif // SHADOWS_DISABLED
+
 #endif // LIGHT_MODE_SPOT
 
 #ifdef USE_VERTEX_LIGHTING
@@ -2056,17 +2094,6 @@ FRAGMENT_SHADER_CODE
 #if defined(DIFFUSE_TOON)
 		//simplify for toon, as
 		specular_light *= specular * metallic * albedo * 2.0;
-#else
-		//TODO: this curve is not really designed for gammaspace, should be adjusted
-		const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022);
-		const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04);
-		vec4 r = roughness * c0 + c1;
-		float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0);
-		float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y;
-		vec2 env = vec2(-1.04, 1.04) * a004 + r.zw;
-
-		vec3 f0 = F0(metallic, specular, albedo);
-		specular_light *= env.x * f0 + env.y;
 #endif
 	}
 
diff --git a/drivers/gles3/rasterizer_canvas_gles3.cpp b/drivers/gles3/rasterizer_canvas_gles3.cpp
index 4817a524f4..30aa22732c 100644
--- a/drivers/gles3/rasterizer_canvas_gles3.cpp
+++ b/drivers/gles3/rasterizer_canvas_gles3.cpp
@@ -332,7 +332,7 @@ void RasterizerCanvasGLES3::_draw_polygon(const int *p_indices, int p_index_coun
 #endif
 	glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_vertices);
 	glEnableVertexAttribArray(VS::ARRAY_VERTEX);
-	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, false, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 	buffer_ofs += sizeof(Vector2) * p_vertex_count;
 	//color
 #ifdef DEBUG_ENABLED
@@ -350,7 +350,7 @@ void RasterizerCanvasGLES3::_draw_polygon(const int *p_indices, int p_index_coun
 
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Color) * p_vertex_count, p_colors);
 		glEnableVertexAttribArray(VS::ARRAY_COLOR);
-		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Color) * p_vertex_count;
 	}
 
@@ -362,7 +362,7 @@ void RasterizerCanvasGLES3::_draw_polygon(const int *p_indices, int p_index_coun
 
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_uvs);
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Vector2) * p_vertex_count;
 
 	} else {
@@ -378,12 +378,12 @@ void RasterizerCanvasGLES3::_draw_polygon(const int *p_indices, int p_index_coun
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(int) * 4 * p_vertex_count, p_bones);
 		glEnableVertexAttribArray(VS::ARRAY_BONES);
 		//glVertexAttribPointer(VS::ARRAY_BONES, 4, GL_UNSIGNED_INT, false, sizeof(int) * 4, ((uint8_t *)0) + buffer_ofs);
-		glVertexAttribIPointer(VS::ARRAY_BONES, 4, GL_UNSIGNED_INT, sizeof(int) * 4, ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribIPointer(VS::ARRAY_BONES, 4, GL_UNSIGNED_INT, sizeof(int) * 4, CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(int) * 4 * p_vertex_count;
 
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(float) * 4 * p_vertex_count, p_weights);
 		glEnableVertexAttribArray(VS::ARRAY_WEIGHTS);
-		glVertexAttribPointer(VS::ARRAY_WEIGHTS, 4, GL_FLOAT, false, sizeof(float) * 4, ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_WEIGHTS, 4, GL_FLOAT, false, sizeof(float) * 4, CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(float) * 4 * p_vertex_count;
 
 	} else if (state.using_skeleton) {
@@ -423,7 +423,7 @@ void RasterizerCanvasGLES3::_draw_generic(GLuint p_primitive, int p_vertex_count
 	//vertex
 	glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_vertices);
 	glEnableVertexAttribArray(VS::ARRAY_VERTEX);
-	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+	glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, false, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 	buffer_ofs += sizeof(Vector2) * p_vertex_count;
 	//color
 
@@ -438,7 +438,7 @@ void RasterizerCanvasGLES3::_draw_generic(GLuint p_primitive, int p_vertex_count
 
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Color) * p_vertex_count, p_colors);
 		glEnableVertexAttribArray(VS::ARRAY_COLOR);
-		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Color) * p_vertex_count;
 	}
 
@@ -446,7 +446,7 @@ void RasterizerCanvasGLES3::_draw_generic(GLuint p_primitive, int p_vertex_count
 
 		glBufferSubData(GL_ARRAY_BUFFER, buffer_ofs, sizeof(Vector2) * p_vertex_count, p_uvs);
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)0) + buffer_ofs);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buffer_ofs));
 		buffer_ofs += sizeof(Vector2) * p_vertex_count;
 
 	} else {
@@ -826,6 +826,8 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 					state.canvas_shader.set_uniform(CanvasShaderGLES3::COLOR_TEXPIXEL_SIZE, texpixel_size);
 				}
 
+				state.canvas_shader.set_uniform(CanvasShaderGLES3::MODELVIEW_MATRIX, state.final_transform * mesh->transform);
+
 				RasterizerStorageGLES3::Mesh *mesh_data = storage->mesh_owner.getornull(mesh->mesh);
 				if (mesh_data) {
 
@@ -834,7 +836,7 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 						// materials are ignored in 2D meshes, could be added but many things (ie, lighting mode, reading from screen, etc) would break as they are not meant be set up at this point of drawing
 						glBindVertexArray(s->array_id);
 
-						glVertexAttrib4f(VS::ARRAY_COLOR, 1, 1, 1, 1);
+						glVertexAttrib4f(VS::ARRAY_COLOR, mesh->modulate.r, mesh->modulate.g, mesh->modulate.b, mesh->modulate.a);
 
 						if (s->index_array_len) {
 							glDrawElements(gl_primitive[s->primitive], s->index_array_len, (s->array_len >= (1 << 16)) ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, 0);
@@ -845,6 +847,8 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 						glBindVertexArray(0);
 					}
 				}
+				state.canvas_shader.set_uniform(CanvasShaderGLES3::MODELVIEW_MATRIX, state.final_transform);
+
 			} break;
 			case Item::Command::TYPE_MULTIMESH: {
 
@@ -888,17 +892,17 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 
 					int stride = (multi_mesh->xform_floats + multi_mesh->color_floats + multi_mesh->custom_data_floats) * 4;
 					glEnableVertexAttribArray(8);
-					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(0));
 					glVertexAttribDivisor(8, 1);
 					glEnableVertexAttribArray(9);
-					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 4 * 4);
+					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(4 * 4));
 					glVertexAttribDivisor(9, 1);
 
 					int color_ofs;
 
 					if (multi_mesh->transform_format == VS::MULTIMESH_TRANSFORM_3D) {
 						glEnableVertexAttribArray(10);
-						glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 8 * 4);
+						glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(8 * 4));
 						glVertexAttribDivisor(10, 1);
 						color_ofs = 12 * 4;
 					} else {
@@ -917,14 +921,14 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 						} break;
 						case VS::MULTIMESH_COLOR_8BIT: {
 							glEnableVertexAttribArray(11);
-							glVertexAttribPointer(11, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, ((uint8_t *)NULL) + color_ofs);
+							glVertexAttribPointer(11, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, CAST_INT_TO_UCHAR_PTR(color_ofs));
 							glVertexAttribDivisor(11, 1);
 							custom_data_ofs += 4;
 
 						} break;
 						case VS::MULTIMESH_COLOR_FLOAT: {
 							glEnableVertexAttribArray(11);
-							glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + color_ofs);
+							glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(color_ofs));
 							glVertexAttribDivisor(11, 1);
 							custom_data_ofs += 4 * 4;
 						} break;
@@ -938,13 +942,13 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 						} break;
 						case VS::MULTIMESH_CUSTOM_DATA_8BIT: {
 							glEnableVertexAttribArray(12);
-							glVertexAttribPointer(12, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, ((uint8_t *)NULL) + custom_data_ofs);
+							glVertexAttribPointer(12, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, CAST_INT_TO_UCHAR_PTR(custom_data_ofs));
 							glVertexAttribDivisor(12, 1);
 
 						} break;
 						case VS::MULTIMESH_CUSTOM_DATA_FLOAT: {
 							glEnableVertexAttribArray(12);
-							glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + custom_data_ofs);
+							glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(custom_data_ofs));
 							glVertexAttribDivisor(12, 1);
 						} break;
 					}
@@ -1019,19 +1023,19 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 				if (particles->draw_order != VS::PARTICLES_DRAW_ORDER_LIFETIME) {
 
 					glEnableVertexAttribArray(8); //xform x
-					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 3);
+					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 3));
 					glVertexAttribDivisor(8, 1);
 					glEnableVertexAttribArray(9); //xform y
-					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 4);
+					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 4));
 					glVertexAttribDivisor(9, 1);
 					glEnableVertexAttribArray(10); //xform z
-					glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 5);
+					glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 5));
 					glVertexAttribDivisor(10, 1);
 					glEnableVertexAttribArray(11); //color
-					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, NULL);
 					glVertexAttribDivisor(11, 1);
 					glEnableVertexAttribArray(12); //custom
-					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 2);
+					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 2));
 					glVertexAttribDivisor(12, 1);
 
 					glDrawArraysInstanced(GL_TRIANGLE_FAN, 0, 4, amount);
@@ -1041,19 +1045,19 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 
 					if (amount - split > 0) {
 						glEnableVertexAttribArray(8); //xform x
-						glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 3);
+						glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 3));
 						glVertexAttribDivisor(8, 1);
 						glEnableVertexAttribArray(9); //xform y
-						glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 4);
+						glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 4));
 						glVertexAttribDivisor(9, 1);
 						glEnableVertexAttribArray(10); //xform z
-						glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 5);
+						glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 5));
 						glVertexAttribDivisor(10, 1);
 						glEnableVertexAttribArray(11); //color
-						glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + 0);
+						glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + 0));
 						glVertexAttribDivisor(11, 1);
 						glEnableVertexAttribArray(12); //custom
-						glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 2);
+						glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 2));
 						glVertexAttribDivisor(12, 1);
 
 						glDrawArraysInstanced(GL_TRIANGLE_FAN, 0, 4, amount - split);
@@ -1061,19 +1065,19 @@ void RasterizerCanvasGLES3::_canvas_item_render_commands(Item *p_item, Item *cur
 
 					if (split > 0) {
 						glEnableVertexAttribArray(8); //xform x
-						glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 3);
+						glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 3));
 						glVertexAttribDivisor(8, 1);
 						glEnableVertexAttribArray(9); //xform y
-						glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 4);
+						glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 4));
 						glVertexAttribDivisor(9, 1);
 						glEnableVertexAttribArray(10); //xform z
-						glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 5);
+						glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 5));
 						glVertexAttribDivisor(10, 1);
 						glEnableVertexAttribArray(11); //color
-						glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+						glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, NULL);
 						glVertexAttribDivisor(11, 1);
 						glEnableVertexAttribArray(12); //custom
-						glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 2);
+						glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 2));
 						glVertexAttribDivisor(12, 1);
 
 						glDrawArraysInstanced(GL_TRIANGLE_FAN, 0, 4, split);
@@ -2043,7 +2047,7 @@ void RasterizerCanvasGLES3::initialize() {
 		glEnableVertexAttribArray(VS::ARRAY_VERTEX);
 		glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, 0);
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, (float *)0 + 2);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, CAST_INT_TO_UCHAR_PTR(8));
 		glBindVertexArray(0);
 		glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
 	}
@@ -2080,16 +2084,16 @@ void RasterizerCanvasGLES3::initialize() {
 			}
 
 			glEnableVertexAttribArray(VS::ARRAY_VERTEX);
-			glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+			glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, stride, NULL);
 
 			if (i & 1) {
 				glEnableVertexAttribArray(VS::ARRAY_COLOR);
-				glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + color_ofs);
+				glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(color_ofs));
 			}
 
 			if (i & 2) {
 				glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
-				glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + uv_ofs);
+				glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(uv_ofs));
 			}
 
 			glBindVertexArray(0);
diff --git a/drivers/gles3/rasterizer_gles3.cpp b/drivers/gles3/rasterizer_gles3.cpp
index a4e042ae0e..bdffb1ecdc 100644
--- a/drivers/gles3/rasterizer_gles3.cpp
+++ b/drivers/gles3/rasterizer_gles3.cpp
@@ -32,7 +32,6 @@
 
 #include "core/os/os.h"
 #include "core/project_settings.h"
-#include "drivers/gl_context/context_gl.h"
 
 RasterizerStorage *RasterizerGLES3::get_storage() {
 
@@ -253,11 +252,16 @@ void RasterizerGLES3::set_current_render_target(RID p_render_target) {
 	}
 }
 
-void RasterizerGLES3::restore_render_target() {
+void RasterizerGLES3::restore_render_target(bool p_3d_was_drawn) {
 
 	ERR_FAIL_COND(storage->frame.current_rt == NULL);
 	RasterizerStorageGLES3::RenderTarget *rt = storage->frame.current_rt;
-	glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
+	if (p_3d_was_drawn && rt->external.fbo != 0) {
+		// our external render buffer is now leading, render 2d into that.
+		glBindFramebuffer(GL_FRAMEBUFFER, rt->external.fbo);
+	} else {
+		glBindFramebuffer(GL_FRAMEBUFFER, rt->fbo);
+	}
 	glViewport(0, 0, rt->width, rt->height);
 }
 
@@ -339,7 +343,11 @@ void RasterizerGLES3::blit_render_target_to_screen(RID p_render_target, const Re
 #if 1
 
 	Size2 win_size = OS::get_singleton()->get_window_size();
-	glBindFramebuffer(GL_READ_FRAMEBUFFER, rt->fbo);
+	if (rt->external.fbo != 0) {
+		glBindFramebuffer(GL_READ_FRAMEBUFFER, rt->external.fbo);
+	} else {
+		glBindFramebuffer(GL_READ_FRAMEBUFFER, rt->fbo);
+	}
 	glReadBuffer(GL_COLOR_ATTACHMENT0);
 	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, RasterizerStorageGLES3::system_fbo);
 	glBlitFramebuffer(0, 0, rt->width, rt->height, p_screen_rect.position.x, win_size.height - p_screen_rect.position.y - p_screen_rect.size.height, p_screen_rect.position.x + p_screen_rect.size.width, win_size.height - p_screen_rect.position.y, GL_COLOR_BUFFER_BIT, GL_NEAREST);
diff --git a/drivers/gles3/rasterizer_gles3.h b/drivers/gles3/rasterizer_gles3.h
index 7541c55c82..ad0d004c9d 100644
--- a/drivers/gles3/rasterizer_gles3.h
+++ b/drivers/gles3/rasterizer_gles3.h
@@ -56,7 +56,7 @@ public:
 	virtual void initialize();
 	virtual void begin_frame(double frame_step);
 	virtual void set_current_render_target(RID p_render_target);
-	virtual void restore_render_target();
+	virtual void restore_render_target(bool p_3d_was_drawn);
 	virtual void clear_render_target(const Color &p_color);
 	virtual void blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect, int p_screen = 0);
 	virtual void output_lens_distorted_to_screen(RID p_render_target, const Rect2 &p_screen_rect, float p_k1, float p_k2, const Vector2 &p_eye_center, float p_oversample);
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp
index 309f8b506c..9aec348291 100644
--- a/drivers/gles3/rasterizer_scene_gles3.cpp
+++ b/drivers/gles3/rasterizer_scene_gles3.cpp
@@ -1061,12 +1061,11 @@ void RasterizerSceneGLES3::gi_probe_instance_set_light_data(RID p_probe, RID p_b
 	if (p_data.is_valid()) {
 		RasterizerStorageGLES3::GIProbeData *gipd = storage->gi_probe_data_owner.getornull(p_data);
 		ERR_FAIL_COND(!gipd);
-		if (gipd) {
-			gipi->tex_cache = gipd->tex_id;
-			gipi->cell_size_cache.x = 1.0 / gipd->width;
-			gipi->cell_size_cache.y = 1.0 / gipd->height;
-			gipi->cell_size_cache.z = 1.0 / gipd->depth;
-		}
+
+		gipi->tex_cache = gipd->tex_id;
+		gipi->cell_size_cache.x = 1.0 / gipd->width;
+		gipi->cell_size_cache.y = 1.0 / gipd->height;
+		gipi->cell_size_cache.z = 1.0 / gipd->depth;
 	}
 }
 void RasterizerSceneGLES3::gi_probe_instance_set_transform_to_data(RID p_probe, const Transform &p_xform) {
@@ -1278,7 +1277,8 @@ bool RasterizerSceneGLES3::_setup_material(RasterizerStorageGLES3::Material *p_m
 
 				} break;
 
-				default: {}
+				default: {
+				}
 			}
 		}
 
@@ -1376,17 +1376,17 @@ void RasterizerSceneGLES3::_setup_geometry(RenderList::Element *e, const Transfo
 
 			int stride = (multi_mesh->xform_floats + multi_mesh->color_floats + multi_mesh->custom_data_floats) * 4;
 			glEnableVertexAttribArray(8);
-			glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+			glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, NULL);
 			glVertexAttribDivisor(8, 1);
 			glEnableVertexAttribArray(9);
-			glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 4 * 4);
+			glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(4 * 4));
 			glVertexAttribDivisor(9, 1);
 
 			int color_ofs;
 
 			if (multi_mesh->transform_format == VS::MULTIMESH_TRANSFORM_3D) {
 				glEnableVertexAttribArray(10);
-				glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 8 * 4);
+				glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(8 * 4));
 				glVertexAttribDivisor(10, 1);
 				color_ofs = 12 * 4;
 			} else {
@@ -1405,14 +1405,14 @@ void RasterizerSceneGLES3::_setup_geometry(RenderList::Element *e, const Transfo
 				} break;
 				case VS::MULTIMESH_COLOR_8BIT: {
 					glEnableVertexAttribArray(11);
-					glVertexAttribPointer(11, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, ((uint8_t *)NULL) + color_ofs);
+					glVertexAttribPointer(11, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, CAST_INT_TO_UCHAR_PTR(color_ofs));
 					glVertexAttribDivisor(11, 1);
 					custom_data_ofs += 4;
 
 				} break;
 				case VS::MULTIMESH_COLOR_FLOAT: {
 					glEnableVertexAttribArray(11);
-					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + color_ofs);
+					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(color_ofs));
 					glVertexAttribDivisor(11, 1);
 					custom_data_ofs += 4 * 4;
 				} break;
@@ -1426,13 +1426,13 @@ void RasterizerSceneGLES3::_setup_geometry(RenderList::Element *e, const Transfo
 				} break;
 				case VS::MULTIMESH_CUSTOM_DATA_8BIT: {
 					glEnableVertexAttribArray(12);
-					glVertexAttribPointer(12, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, ((uint8_t *)NULL) + custom_data_ofs);
+					glVertexAttribPointer(12, 4, GL_UNSIGNED_BYTE, GL_TRUE, stride, CAST_INT_TO_UCHAR_PTR(custom_data_ofs));
 					glVertexAttribDivisor(12, 1);
 
 				} break;
 				case VS::MULTIMESH_CUSTOM_DATA_FLOAT: {
 					glEnableVertexAttribArray(12);
-					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + custom_data_ofs);
+					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(custom_data_ofs));
 					glVertexAttribDivisor(12, 1);
 				} break;
 			}
@@ -1508,24 +1508,25 @@ void RasterizerSceneGLES3::_setup_geometry(RenderList::Element *e, const Transfo
 			if (particles->draw_order != VS::PARTICLES_DRAW_ORDER_LIFETIME) {
 
 				glEnableVertexAttribArray(8); //xform x
-				glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 3);
+				glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 3));
 				glVertexAttribDivisor(8, 1);
 				glEnableVertexAttribArray(9); //xform y
-				glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 4);
+				glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 4));
 				glVertexAttribDivisor(9, 1);
 				glEnableVertexAttribArray(10); //xform z
-				glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 5);
+				glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 5));
 				glVertexAttribDivisor(10, 1);
 				glEnableVertexAttribArray(11); //color
-				glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+				glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, NULL);
 				glVertexAttribDivisor(11, 1);
 				glEnableVertexAttribArray(12); //custom
-				glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 2);
+				glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 2));
 				glVertexAttribDivisor(12, 1);
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1659,7 +1660,7 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 					glEnableVertexAttribArray(VS::ARRAY_NORMAL);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector3) * vertices, c.normals.ptr());
-					glVertexAttribPointer(VS::ARRAY_NORMAL, 3, GL_FLOAT, false, sizeof(Vector3), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_NORMAL, 3, GL_FLOAT, false, sizeof(Vector3), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Vector3) * vertices;
 
 				} else {
@@ -1671,7 +1672,7 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 					glEnableVertexAttribArray(VS::ARRAY_TANGENT);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Plane) * vertices, c.tangents.ptr());
-					glVertexAttribPointer(VS::ARRAY_TANGENT, 4, GL_FLOAT, false, sizeof(Plane), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_TANGENT, 4, GL_FLOAT, false, sizeof(Plane), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Plane) * vertices;
 
 				} else {
@@ -1683,7 +1684,7 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 					glEnableVertexAttribArray(VS::ARRAY_COLOR);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Color) * vertices, c.colors.ptr());
-					glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_COLOR, 4, GL_FLOAT, false, sizeof(Color), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Color) * vertices;
 
 				} else {
@@ -1696,7 +1697,7 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 					glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector2) * vertices, c.uvs.ptr());
-					glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, false, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Vector2) * vertices;
 
 				} else {
@@ -1708,7 +1709,7 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 					glEnableVertexAttribArray(VS::ARRAY_TEX_UV2);
 					glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector2) * vertices, c.uvs2.ptr());
-					glVertexAttribPointer(VS::ARRAY_TEX_UV2, 2, GL_FLOAT, false, sizeof(Vector2), ((uint8_t *)NULL) + buf_ofs);
+					glVertexAttribPointer(VS::ARRAY_TEX_UV2, 2, GL_FLOAT, false, sizeof(Vector2), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 					buf_ofs += sizeof(Vector2) * vertices;
 
 				} else {
@@ -1718,7 +1719,7 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 				glEnableVertexAttribArray(VS::ARRAY_VERTEX);
 				glBufferSubData(GL_ARRAY_BUFFER, buf_ofs, sizeof(Vector3) * vertices, c.vertices.ptr());
-				glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, false, sizeof(Vector3), ((uint8_t *)NULL) + buf_ofs);
+				glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, false, sizeof(Vector3), CAST_INT_TO_UCHAR_PTR(buf_ofs));
 				glDrawArrays(gl_primitive[c.primitive], 0, c.vertices.size());
 			}
 
@@ -1747,19 +1748,19 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 				if (amount - split > 0) {
 					glEnableVertexAttribArray(8); //xform x
-					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 3);
+					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 3));
 					glVertexAttribDivisor(8, 1);
 					glEnableVertexAttribArray(9); //xform y
-					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 4);
+					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 4));
 					glVertexAttribDivisor(9, 1);
 					glEnableVertexAttribArray(10); //xform z
-					glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 5);
+					glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 5));
 					glVertexAttribDivisor(10, 1);
 					glEnableVertexAttribArray(11); //color
-					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + 0);
+					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + 0));
 					glVertexAttribDivisor(11, 1);
 					glEnableVertexAttribArray(12); //custom
-					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + stride * split + sizeof(float) * 4 * 2);
+					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(stride * split + sizeof(float) * 4 * 2));
 					glVertexAttribDivisor(12, 1);
 #ifdef DEBUG_ENABLED
 
@@ -1785,19 +1786,19 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 
 				if (split > 0) {
 					glEnableVertexAttribArray(8); //xform x
-					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 3);
+					glVertexAttribPointer(8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 3));
 					glVertexAttribDivisor(8, 1);
 					glEnableVertexAttribArray(9); //xform y
-					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 4);
+					glVertexAttribPointer(9, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 4));
 					glVertexAttribDivisor(9, 1);
 					glEnableVertexAttribArray(10); //xform z
-					glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 5);
+					glVertexAttribPointer(10, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 5));
 					glVertexAttribDivisor(10, 1);
 					glEnableVertexAttribArray(11); //color
-					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + 0);
+					glVertexAttribPointer(11, 4, GL_FLOAT, GL_FALSE, stride, NULL);
 					glVertexAttribDivisor(11, 1);
 					glEnableVertexAttribArray(12); //custom
-					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)NULL) + sizeof(float) * 4 * 2);
+					glVertexAttribPointer(12, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(sizeof(float) * 4 * 2));
 					glVertexAttribDivisor(12, 1);
 #ifdef DEBUG_ENABLED
 
@@ -1847,7 +1848,8 @@ void RasterizerSceneGLES3::_render_geometry(RenderList::Element *e) {
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -2349,6 +2351,10 @@ void RasterizerSceneGLES3::_add_geometry_with_material(RasterizerStorageGLES3::G
 		state.used_screen_texture = true;
 	}
 
+	if (p_material->shader->spatial.uses_depth_texture) {
+		state.used_depth_texture = true;
+	}
+
 	if (p_depth_pass) {
 
 		if (has_blend_alpha || p_material->shader->spatial.uses_depth_texture || (has_base_alpha && p_material->shader->spatial.depth_draw_mode != RasterizerStorageGLES3::Shader::Spatial::DEPTH_DRAW_ALPHA_PREPASS) || p_material->shader->spatial.depth_draw_mode == RasterizerStorageGLES3::Shader::Spatial::DEPTH_DRAW_NEVER || p_material->shader->spatial.no_depth_test)
@@ -3165,6 +3171,7 @@ void RasterizerSceneGLES3::_fill_render_list(InstanceBase **p_cull_result, int p
 	current_material_index = 0;
 	state.used_sss = false;
 	state.used_screen_texture = false;
+	state.used_depth_texture = false;
 
 	//fill list
 
@@ -3243,7 +3250,8 @@ void RasterizerSceneGLES3::_fill_render_list(InstanceBase **p_cull_result, int p
 				}
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 }
@@ -3281,14 +3289,8 @@ void RasterizerSceneGLES3::_blur_effect_buffer() {
 	}
 }
 
-void RasterizerSceneGLES3::_render_mrts(Environment *env, const CameraMatrix &p_cam_projection) {
-
-	glDepthMask(GL_FALSE);
-	glDisable(GL_DEPTH_TEST);
-	glDisable(GL_CULL_FACE);
-	glDisable(GL_BLEND);
-
-	if (!state.used_depth_prepass_and_resolved) {
+void RasterizerSceneGLES3::_prepare_depth_texture() {
+	if (!state.prepared_depth_texture) {
 		//resolve depth buffer
 		glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->buffers.fbo);
 		glReadBuffer(GL_COLOR_ATTACHMENT0);
@@ -3296,7 +3298,28 @@ void RasterizerSceneGLES3::_render_mrts(Environment *env, const CameraMatrix &p_
 		glBlitFramebuffer(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, 0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
 		glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
 		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+		state.prepared_depth_texture = true;
 	}
+}
+
+void RasterizerSceneGLES3::_bind_depth_texture() {
+	if (!state.bound_depth_texture) {
+		ERR_FAIL_COND(!state.prepared_depth_texture)
+		//bind depth for read
+		glActiveTexture(GL_TEXTURE0 + storage->config.max_texture_image_units - 8);
+		glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->depth);
+		state.bound_depth_texture = true;
+	}
+}
+
+void RasterizerSceneGLES3::_render_mrts(Environment *env, const CameraMatrix &p_cam_projection) {
+
+	glDepthMask(GL_FALSE);
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_CULL_FACE);
+	glDisable(GL_BLEND);
+
+	_prepare_depth_texture();
 
 	if (env->ssao_enabled || env->ssr_enabled) {
 
@@ -3640,10 +3663,14 @@ void RasterizerSceneGLES3::_post_process(Environment *env, const CameraMatrix &p
 
 	if (!env || storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT] || storage->frame.current_rt->width < 4 || storage->frame.current_rt->height < 4) { //no post process on small render targets
 		//no environment or transparent render, simply return and convert to SRGB
-		glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo);
+		if (storage->frame.current_rt->external.fbo != 0) {
+			glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->external.fbo);
+		} else {
+			glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo);
+		}
 		glActiveTexture(GL_TEXTURE0);
 		glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->effects.mip_maps[0].color);
-		storage->shaders.copy.set_conditional(CopyShaderGLES3::LINEAR_TO_SRGB, true);
+		storage->shaders.copy.set_conditional(CopyShaderGLES3::LINEAR_TO_SRGB, !storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_KEEP_3D_LINEAR]);
 		storage->shaders.copy.set_conditional(CopyShaderGLES3::V_FLIP, storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_VFLIP]);
 		storage->shaders.copy.set_conditional(CopyShaderGLES3::DISABLE_ALPHA, !storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]);
 		storage->shaders.copy.bind();
@@ -3983,7 +4010,11 @@ void RasterizerSceneGLES3::_post_process(Environment *env, const CameraMatrix &p
 		glViewport(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height);
 	}
 
-	glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo);
+	if (storage->frame.current_rt->external.fbo != 0) {
+		glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->external.fbo);
+	} else {
+		glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->fbo);
+	}
 
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D, composite_from);
@@ -4149,7 +4180,8 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 	glDepthFunc(GL_LEQUAL);
 
 	state.used_contact_shadows = false;
-	state.used_depth_prepass_and_resolved = false;
+	state.prepared_depth_texture = false;
+	state.bound_depth_texture = false;
 
 	for (int i = 0; i < p_light_cull_count; i++) {
 
@@ -4161,7 +4193,17 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 		}
 	}
 
-	if (!storage->config.no_depth_prepass && storage->frame.current_rt && state.debug_draw != VS::VIEWPORT_DEBUG_DRAW_OVERDRAW && !storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_NO_3D_EFFECTS]) { //detect with state.used_contact_shadows too
+	// Do depth prepass if it's explicitly enabled
+	bool use_depth_prepass = storage->config.use_depth_prepass;
+
+	// If contact shadows are used then we need to do depth prepass even if it's otherwise disabled
+	use_depth_prepass = use_depth_prepass || state.used_contact_shadows;
+
+	// Never do depth prepass if effects are disabled or if we render overdraws
+	use_depth_prepass = use_depth_prepass && storage->frame.current_rt && !storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_NO_3D_EFFECTS];
+	use_depth_prepass = use_depth_prepass && state.debug_draw != VS::VIEWPORT_DEBUG_DRAW_OVERDRAW;
+
+	if (use_depth_prepass) {
 		//pre z pass
 
 		glDisable(GL_BLEND);
@@ -4188,16 +4230,8 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 
 		if (state.used_contact_shadows) {
 
-			glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->buffers.fbo);
-			glReadBuffer(GL_COLOR_ATTACHMENT0);
-			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
-			glBlitFramebuffer(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, 0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
-			glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
-			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
-			//bind depth for read
-			glActiveTexture(GL_TEXTURE0 + storage->config.max_texture_image_units - 8);
-			glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->depth);
-			state.used_depth_prepass_and_resolved = true;
+			_prepare_depth_texture();
+			_bind_depth_texture();
 		}
 
 		fb_cleared = true;
@@ -4392,7 +4426,8 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 				glEnable(GL_DEPTH_TEST);
 				glEnable(GL_CULL_FACE);
 				break;
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -4455,7 +4490,12 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 
 		_render_mrts(env, p_cam_projection);
 	} else {
-		//FIXME: check that this is possible to use
+		// Here we have to do the blits/resolves that otherwise are done in the MRT rendering, in particular
+		// - prepare screen texture for any geometry that uses a shader with screen texture
+		// - prepare depth texture for any geometry that uses a shader with depth texture
+
+		bool framebuffer_dirty = false;
+
 		if (storage->frame.current_rt && storage->frame.current_rt->buffers.active && state.used_screen_texture) {
 			glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->buffers.fbo);
 			glReadBuffer(GL_COLOR_ATTACHMENT0);
@@ -4464,12 +4504,25 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 			glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
 			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
 			_blur_effect_buffer();
-			//restored framebuffer
+			framebuffer_dirty = true;
+		}
+
+		if (storage->frame.current_rt && storage->frame.current_rt->buffers.active && state.used_depth_texture) {
+			_prepare_depth_texture();
+			framebuffer_dirty = true;
+		}
+
+		if (framebuffer_dirty) {
+			// Restore framebuffer
 			glBindFramebuffer(GL_FRAMEBUFFER, storage->frame.current_rt->buffers.fbo);
 			glViewport(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height);
 		}
 	}
 
+	if (storage->frame.current_rt && state.used_depth_texture && storage->frame.current_rt->buffers.active) {
+		_bind_depth_texture();
+	}
+
 	if (storage->frame.current_rt && state.used_screen_texture && storage->frame.current_rt->buffers.active) {
 		glActiveTexture(GL_TEXTURE0 + storage->config.max_texture_image_units - 7);
 		glBindTexture(GL_TEXTURE_2D, storage->frame.current_rt->effects.mip_maps[0].color);
@@ -4949,7 +5002,7 @@ void RasterizerSceneGLES3::initialize() {
 		glBindBuffer(GL_ARRAY_BUFFER, state.sky_verts);
 		glVertexAttribPointer(VS::ARRAY_VERTEX, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, 0);
 		glEnableVertexAttribArray(VS::ARRAY_VERTEX);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, ((uint8_t *)NULL) + sizeof(Vector3));
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 3, GL_FLOAT, GL_FALSE, sizeof(Vector3) * 2, CAST_INT_TO_UCHAR_PTR(sizeof(Vector3)));
 		glEnableVertexAttribArray(VS::ARRAY_TEX_UV);
 		glBindVertexArray(0);
 		glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
diff --git a/drivers/gles3/rasterizer_scene_gles3.h b/drivers/gles3/rasterizer_scene_gles3.h
index 56e378d7fa..59e23e5ac9 100644
--- a/drivers/gles3/rasterizer_scene_gles3.h
+++ b/drivers/gles3/rasterizer_scene_gles3.h
@@ -206,7 +206,10 @@ public:
 		bool used_screen_texture;
 
 		bool used_depth_prepass;
-		bool used_depth_prepass_and_resolved;
+
+		bool used_depth_texture;
+		bool prepared_depth_texture;
+		bool bound_depth_texture;
 
 		VS::ViewportDebugDraw debug_draw;
 	} state;
@@ -848,6 +851,9 @@ public:
 	void _render_mrts(Environment *env, const CameraMatrix &p_cam_projection);
 	void _post_process(Environment *env, const CameraMatrix &p_cam_projection);
 
+	void _prepare_depth_texture();
+	void _bind_depth_texture();
+
 	virtual void render_scene(const Transform &p_cam_transform, const CameraMatrix &p_cam_projection, bool p_cam_ortogonal, InstanceBase **p_cull_result, int p_cull_count, RID *p_light_cull_result, int p_light_cull_count, RID *p_reflection_probe_cull_result, int p_reflection_probe_cull_count, RID p_environment, RID p_shadow_atlas, RID p_reflection_atlas, RID p_reflection_probe, int p_reflection_probe_pass);
 	virtual void render_shadow(RID p_light, RID p_shadow_atlas, int p_pass, InstanceBase **p_cull_result, int p_cull_count);
 	virtual bool free(RID p_rid);
diff --git a/drivers/gles3/rasterizer_storage_gles3.cpp b/drivers/gles3/rasterizer_storage_gles3.cpp
index 1fa4eacd95..661be28e6b 100644
--- a/drivers/gles3/rasterizer_storage_gles3.cpp
+++ b/drivers/gles3/rasterizer_storage_gles3.cpp
@@ -642,7 +642,8 @@ void RasterizerStorageGLES3::texture_allocate(RID p_texture, int p_width, int p_
 				p_flags &= ~VS::TEXTURE_FLAG_FILTER;
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 #endif
 
@@ -1209,10 +1210,7 @@ Ref<Image> RasterizerStorageGLES3::texture_get_data(RID p_texture, int p_layer)
 
 	for (int i = 0; i < texture->mipmaps; i++) {
 
-		int ofs = 0;
-		if (i > 0) {
-			ofs = Image::get_image_data_size(texture->alloc_width, texture->alloc_height, real_format, i - 1);
-		}
+		int ofs = Image::get_image_mipmap_offset(texture->alloc_width, texture->alloc_height, real_format, i);
 
 		if (texture->compressed) {
 
@@ -2751,7 +2749,8 @@ _FORCE_INLINE_ static void _fill_std140_variant_ubo_value(ShaderLanguage::DataTy
 			gui[14] = v.origin.z;
 			gui[15] = 1;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -2919,7 +2918,8 @@ _FORCE_INLINE_ static void _fill_std140_ubo_value(ShaderLanguage::DataType type,
 				gui[i] = value[i].real;
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -2962,7 +2962,8 @@ _FORCE_INLINE_ static void _fill_std140_ubo_empty(ShaderLanguage::DataType type,
 			zeromem(data, 64);
 		} break;
 
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -3466,9 +3467,9 @@ void RasterizerStorageGLES3::mesh_add_surface(RID p_mesh, uint32_t p_format, VS:
 					continue;
 
 				if (attribs[i].integer) {
-					glVertexAttribIPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].stride, ((uint8_t *)0) + attribs[i].offset);
+					glVertexAttribIPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].stride, CAST_INT_TO_UCHAR_PTR(attribs[i].offset));
 				} else {
-					glVertexAttribPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].normalized, attribs[i].stride, ((uint8_t *)0) + attribs[i].offset);
+					glVertexAttribPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].normalized, attribs[i].stride, CAST_INT_TO_UCHAR_PTR(attribs[i].offset));
 				}
 				glEnableVertexAttribArray(attribs[i].index);
 			}
@@ -3571,9 +3572,9 @@ void RasterizerStorageGLES3::mesh_add_surface(RID p_mesh, uint32_t p_format, VS:
 						continue;
 
 					if (attribs[i].integer) {
-						glVertexAttribIPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].stride, ((uint8_t *)0) + attribs[i].offset);
+						glVertexAttribIPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].stride, CAST_INT_TO_UCHAR_PTR(attribs[i].offset));
 					} else {
-						glVertexAttribPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].normalized, attribs[i].stride, ((uint8_t *)0) + attribs[i].offset);
+						glVertexAttribPointer(attribs[i].index, attribs[i].size, attribs[i].type, attribs[i].normalized, attribs[i].stride, CAST_INT_TO_UCHAR_PTR(attribs[i].offset));
 					}
 					glEnableVertexAttribArray(attribs[i].index);
 				}
@@ -3616,9 +3617,9 @@ void RasterizerStorageGLES3::mesh_add_surface(RID p_mesh, uint32_t p_format, VS:
 					continue;
 
 				if (attribs[j].integer) {
-					glVertexAttribIPointer(attribs[j].index, attribs[j].size, attribs[j].type, attribs[j].stride, ((uint8_t *)0) + attribs[j].offset);
+					glVertexAttribIPointer(attribs[j].index, attribs[j].size, attribs[j].type, attribs[j].stride, CAST_INT_TO_UCHAR_PTR(attribs[j].offset));
 				} else {
-					glVertexAttribPointer(attribs[j].index, attribs[j].size, attribs[j].type, attribs[j].normalized, attribs[j].stride, ((uint8_t *)0) + attribs[j].offset);
+					glVertexAttribPointer(attribs[j].index, attribs[j].size, attribs[j].type, attribs[j].normalized, attribs[j].stride, CAST_INT_TO_UCHAR_PTR(attribs[j].offset));
 				}
 				glEnableVertexAttribArray(attribs[j].index);
 			}
@@ -4131,7 +4132,7 @@ void RasterizerStorageGLES3::mesh_render_blend_shapes(Surface *s, const float *p
 	for (int ti = 0; ti < mtc; ti++) {
 		float weight = p_weights[ti];
 
-		if (weight < 0.001) //not bother with this one
+		if (weight < 0.00001) //not bother with this one
 			continue;
 
 		glBindVertexArray(s->blend_shapes[ti].array_id);
@@ -4149,44 +4150,44 @@ void RasterizerStorageGLES3::mesh_render_blend_shapes(Surface *s, const float *p
 
 					case VS::ARRAY_VERTEX: {
 						if (s->format & VS::ARRAY_FLAG_USE_2D_VERTICES) {
-							glVertexAttribPointer(i + 8, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+							glVertexAttribPointer(i + 8, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 							ofs += 2 * 4;
 						} else {
-							glVertexAttribPointer(i + 8, 3, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+							glVertexAttribPointer(i + 8, 3, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 							ofs += 3 * 4;
 						}
 					} break;
 					case VS::ARRAY_NORMAL: {
-						glVertexAttribPointer(i + 8, 3, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i + 8, 3, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 3 * 4;
 					} break;
 					case VS::ARRAY_TANGENT: {
-						glVertexAttribPointer(i + 8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i + 8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 4 * 4;
 
 					} break;
 					case VS::ARRAY_COLOR: {
-						glVertexAttribPointer(i + 8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i + 8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 4 * 4;
 
 					} break;
 					case VS::ARRAY_TEX_UV: {
-						glVertexAttribPointer(i + 8, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i + 8, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 2 * 4;
 
 					} break;
 					case VS::ARRAY_TEX_UV2: {
-						glVertexAttribPointer(i + 8, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i + 8, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 2 * 4;
 
 					} break;
 					case VS::ARRAY_BONES: {
-						glVertexAttribIPointer(i + 8, 4, GL_UNSIGNED_INT, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribIPointer(i + 8, 4, GL_UNSIGNED_INT, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 4 * 4;
 
 					} break;
 					case VS::ARRAY_WEIGHTS: {
-						glVertexAttribPointer(i + 8, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i + 8, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 4 * 4;
 
 					} break;
@@ -4219,44 +4220,44 @@ void RasterizerStorageGLES3::mesh_render_blend_shapes(Surface *s, const float *p
 
 				case VS::ARRAY_VERTEX: {
 					if (s->format & VS::ARRAY_FLAG_USE_2D_VERTICES) {
-						glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 2 * 4;
 					} else {
-						glVertexAttribPointer(i, 3, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+						glVertexAttribPointer(i, 3, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 						ofs += 3 * 4;
 					}
 				} break;
 				case VS::ARRAY_NORMAL: {
-					glVertexAttribPointer(i, 3, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribPointer(i, 3, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 3 * 4;
 				} break;
 				case VS::ARRAY_TANGENT: {
-					glVertexAttribPointer(i, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribPointer(i, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 4 * 4;
 
 				} break;
 				case VS::ARRAY_COLOR: {
-					glVertexAttribPointer(i, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribPointer(i, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 4 * 4;
 
 				} break;
 				case VS::ARRAY_TEX_UV: {
-					glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 2 * 4;
 
 				} break;
 				case VS::ARRAY_TEX_UV2: {
-					glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 2 * 4;
 
 				} break;
 				case VS::ARRAY_BONES: {
-					glVertexAttribIPointer(i, 4, GL_UNSIGNED_INT, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribIPointer(i, 4, GL_UNSIGNED_INT, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 4 * 4;
 
 				} break;
 				case VS::ARRAY_WEIGHTS: {
-					glVertexAttribPointer(i, 4, GL_FLOAT, GL_FALSE, stride, ((uint8_t *)0) + ofs);
+					glVertexAttribPointer(i, 4, GL_FLOAT, GL_FALSE, stride, CAST_INT_TO_UCHAR_PTR(ofs));
 					ofs += 4 * 4;
 
 				} break;
@@ -5215,6 +5216,7 @@ RID RasterizerStorageGLES3::light_create(VS::LightType p_type) {
 	light->directional_blend_splits = false;
 	light->directional_range_mode = VS::LIGHT_DIRECTIONAL_SHADOW_DEPTH_RANGE_STABLE;
 	light->reverse_cull = false;
+	light->use_gi = true;
 	light->version = 0;
 
 	return light_owner.make_rid(light);
@@ -5246,7 +5248,8 @@ void RasterizerStorageGLES3::light_set_param(RID p_light, VS::LightParam p_param
 			light->version++;
 			light->instance_change_notify(true, false);
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	light->param[p_param] = p_value;
@@ -5305,6 +5308,15 @@ void RasterizerStorageGLES3::light_set_reverse_cull_face_mode(RID p_light, bool
 	light->instance_change_notify(true, false);
 }
 
+void RasterizerStorageGLES3::light_set_use_gi(RID p_light, bool p_enabled) {
+	Light *light = light_owner.getornull(p_light);
+	ERR_FAIL_COND(!light);
+
+	light->use_gi = p_enabled;
+
+	light->version++;
+	light->instance_change_notify(true, false);
+}
 void RasterizerStorageGLES3::light_omni_set_shadow_mode(RID p_light, VS::LightOmniShadowMode p_mode) {
 
 	Light *light = light_owner.getornull(p_light);
@@ -5410,6 +5422,13 @@ Color RasterizerStorageGLES3::light_get_color(RID p_light) {
 	return light->color;
 }
 
+bool RasterizerStorageGLES3::light_get_use_gi(RID p_light) {
+	Light *light = light_owner.getornull(p_light);
+	ERR_FAIL_COND_V(!light, false);
+
+	return light->use_gi;
+}
+
 bool RasterizerStorageGLES3::light_has_shadow(RID p_light) const {
 
 	const Light *light = light_owner.getornull(p_light);
@@ -5448,7 +5467,8 @@ AABB RasterizerStorageGLES3::light_get_aabb(RID p_light) const {
 
 			return AABB();
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	ERR_FAIL_V(AABB());
@@ -6080,7 +6100,7 @@ void RasterizerStorageGLES3::particles_set_amount(RID p_particles, int p_amount)
 
 		for (int j = 0; j < 6; j++) {
 			glEnableVertexAttribArray(j);
-			glVertexAttribPointer(j, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4 * 6, ((uint8_t *)0) + (j * 16));
+			glVertexAttribPointer(j, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4 * 6, CAST_INT_TO_UCHAR_PTR(j * 16));
 		}
 	}
 
@@ -6094,7 +6114,7 @@ void RasterizerStorageGLES3::particles_set_amount(RID p_particles, int p_amount)
 
 			for (int j = 0; j < 6; j++) {
 				glEnableVertexAttribArray(j);
-				glVertexAttribPointer(j, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4 * 6, ((uint8_t *)0) + (j * 16));
+				glVertexAttribPointer(j, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4 * 6, CAST_INT_TO_UCHAR_PTR(j * 16));
 			}
 			particles->particle_valid_histories[i] = false;
 		}
@@ -6172,7 +6192,7 @@ void RasterizerStorageGLES3::_particles_update_histories(Particles *particles) {
 
 			for (int j = 0; j < 6; j++) {
 				glEnableVertexAttribArray(j);
-				glVertexAttribPointer(j, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4 * 6, ((uint8_t *)0) + (j * 16));
+				glVertexAttribPointer(j, 4, GL_FLOAT, GL_FALSE, sizeof(float) * 4 * 6, CAST_INT_TO_UCHAR_PTR(j * 16));
 			}
 
 			particles->particle_valid_histories[i] = false;
@@ -6794,6 +6814,24 @@ void RasterizerStorageGLES3::_render_target_clear(RenderTarget *rt) {
 		glDeleteTextures(1, &rt->exposure.color);
 		rt->exposure.fbo = 0;
 	}
+
+	if (rt->external.fbo != 0) {
+		// free this
+		glDeleteFramebuffers(1, &rt->external.fbo);
+
+		// clean up our texture
+		Texture *t = texture_owner.get(rt->external.texture);
+		t->alloc_height = 0;
+		t->alloc_width = 0;
+		t->width = 0;
+		t->height = 0;
+		t->active = false;
+		texture_owner.free(rt->external.texture);
+		memdelete(t);
+
+		rt->external.fbo = 0;
+	}
+
 	Texture *tex = texture_owner.get(rt->texture);
 	tex->alloc_height = 0;
 	tex->alloc_width = 0;
@@ -7249,7 +7287,99 @@ RID RasterizerStorageGLES3::render_target_get_texture(RID p_render_target) const
 	RenderTarget *rt = render_target_owner.getornull(p_render_target);
 	ERR_FAIL_COND_V(!rt, RID());
 
-	return rt->texture;
+	if (rt->external.fbo == 0) {
+		return rt->texture;
+	} else {
+		return rt->external.texture;
+	}
+}
+
+void RasterizerStorageGLES3::render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id) {
+	RenderTarget *rt = render_target_owner.getornull(p_render_target);
+	ERR_FAIL_COND(!rt);
+
+	if (p_texture_id == 0) {
+		if (rt->external.fbo != 0) {
+			// free this
+			glDeleteFramebuffers(1, &rt->external.fbo);
+
+			// clean up our texture
+			Texture *t = texture_owner.get(rt->external.texture);
+			t->alloc_height = 0;
+			t->alloc_width = 0;
+			t->width = 0;
+			t->height = 0;
+			t->active = false;
+			texture_owner.free(rt->external.texture);
+			memdelete(t);
+
+			rt->external.fbo = 0;
+		}
+	} else {
+		Texture *t;
+
+		if (rt->external.fbo == 0) {
+			// create our fbo
+			glGenFramebuffers(1, &rt->external.fbo);
+			glBindFramebuffer(GL_FRAMEBUFFER, rt->external.fbo);
+
+			// allocate a texture
+			t = memnew(Texture);
+
+			t->type = VS::TEXTURE_TYPE_2D;
+			t->flags = 0;
+			t->width = 0;
+			t->height = 0;
+			t->alloc_height = 0;
+			t->alloc_width = 0;
+			t->format = Image::FORMAT_RGBA8;
+			t->target = GL_TEXTURE_2D;
+			t->gl_format_cache = 0;
+			t->gl_internal_format_cache = 0;
+			t->gl_type_cache = 0;
+			t->data_size = 0;
+			t->compressed = false;
+			t->srgb = false;
+			t->total_data_size = 0;
+			t->ignore_mipmaps = false;
+			t->mipmaps = 1;
+			t->active = true;
+			t->tex_id = 0;
+			t->render_target = rt;
+
+			rt->external.texture = texture_owner.make_rid(t);
+		} else {
+			// bind our frame buffer
+			glBindFramebuffer(GL_FRAMEBUFFER, rt->external.fbo);
+
+			// find our texture
+			t = texture_owner.get(rt->external.texture);
+		}
+
+		// set our texture
+		t->tex_id = p_texture_id;
+
+		// size shouldn't be different
+		t->width = rt->width;
+		t->height = rt->height;
+		t->alloc_height = rt->width;
+		t->alloc_width = rt->height;
+
+		// is there a point to setting the internal formats? we don't know them..
+
+		// set our texture as the destination for our framebuffer
+		glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, p_texture_id, 0);
+
+		// check status and unbind
+		GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+		glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES3::system_fbo);
+
+		if (status != GL_FRAMEBUFFER_COMPLETE) {
+			printf("framebuffer fail, status: %x\n", status);
+		}
+
+		ERR_FAIL_COND(status != GL_FRAMEBUFFER_COMPLETE);
+	}
 }
 
 void RasterizerStorageGLES3::render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value) {
@@ -7269,7 +7399,8 @@ void RasterizerStorageGLES3::render_target_set_flag(RID p_render_target, RenderT
 			_render_target_allocate(rt);
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 bool RasterizerStorageGLES3::render_target_was_used(RID p_render_target) {
@@ -7997,7 +8128,7 @@ void RasterizerStorageGLES3::initialize() {
 		glBindBuffer(GL_ARRAY_BUFFER, resources.quadie);
 		glVertexAttribPointer(VS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, 0);
 		glEnableVertexAttribArray(0);
-		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, ((uint8_t *)NULL) + 8);
+		glVertexAttribPointer(VS::ARRAY_TEX_UV, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, CAST_INT_TO_UCHAR_PTR(8));
 		glEnableVertexAttribArray(4);
 		glBindVertexArray(0);
 		glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
@@ -8042,8 +8173,8 @@ void RasterizerStorageGLES3::initialize() {
 
 	String renderer = (const char *)glGetString(GL_RENDERER);
 
-	config.no_depth_prepass = !bool(GLOBAL_GET("rendering/quality/depth_prepass/enable"));
-	if (!config.no_depth_prepass) {
+	config.use_depth_prepass = bool(GLOBAL_GET("rendering/quality/depth_prepass/enable"));
+	if (config.use_depth_prepass) {
 
 		String vendors = GLOBAL_GET("rendering/quality/depth_prepass/disable_for_vendors");
 		Vector<String> vendor_match = vendors.split(",");
@@ -8053,7 +8184,7 @@ void RasterizerStorageGLES3::initialize() {
 				continue;
 
 			if (renderer.findn(v) != -1) {
-				config.no_depth_prepass = true;
+				config.use_depth_prepass = false;
 			}
 		}
 	}
diff --git a/drivers/gles3/rasterizer_storage_gles3.h b/drivers/gles3/rasterizer_storage_gles3.h
index 2994bfb074..a4cc84ef02 100644
--- a/drivers/gles3/rasterizer_storage_gles3.h
+++ b/drivers/gles3/rasterizer_storage_gles3.h
@@ -103,7 +103,7 @@ public:
 
 		bool keep_original_textures;
 
-		bool no_depth_prepass;
+		bool use_depth_prepass;
 		bool force_vertex_shading;
 	} config;
 
@@ -930,6 +930,7 @@ public:
 		bool shadow;
 		bool negative;
 		bool reverse_cull;
+		bool use_gi;
 		uint32_t cull_mask;
 		VS::LightOmniShadowMode omni_shadow_mode;
 		VS::LightOmniShadowDetail omni_shadow_detail;
@@ -951,6 +952,7 @@ public:
 	virtual void light_set_negative(RID p_light, bool p_enable);
 	virtual void light_set_cull_mask(RID p_light, uint32_t p_mask);
 	virtual void light_set_reverse_cull_face_mode(RID p_light, bool p_enabled);
+	virtual void light_set_use_gi(RID p_light, bool p_enabled);
 
 	virtual void light_omni_set_shadow_mode(RID p_light, VS::LightOmniShadowMode p_mode);
 	virtual void light_omni_set_shadow_detail(RID p_light, VS::LightOmniShadowDetail p_detail);
@@ -970,6 +972,7 @@ public:
 	virtual VS::LightType light_get_type(RID p_light) const;
 	virtual float light_get_param(RID p_light, VS::LightParam p_param);
 	virtual Color light_get_color(RID p_light);
+	virtual bool light_get_use_gi(RID p_light);
 
 	virtual AABB light_get_aabb(RID p_light) const;
 	virtual uint64_t light_get_version(RID p_light) const;
@@ -1345,6 +1348,15 @@ public:
 					fbo(0) {}
 		} exposure;
 
+		// External FBO to render our final result to (mostly used for ARVR)
+		struct External {
+			GLuint fbo;
+			RID texture;
+
+			External() :
+					fbo(0) {}
+		} external;
+
 		uint64_t last_exposure_tick;
 
 		int width, height;
@@ -1366,6 +1378,7 @@ public:
 				msaa(VS::VIEWPORT_MSAA_DISABLED) {
 			exposure.fbo = 0;
 			buffers.fbo = 0;
+			external.fbo = 0;
 			for (int i = 0; i < RENDER_TARGET_FLAG_MAX; i++) {
 				flags[i] = false;
 			}
@@ -1383,6 +1396,7 @@ public:
 	virtual RID render_target_create();
 	virtual void render_target_set_size(RID p_render_target, int p_width, int p_height);
 	virtual RID render_target_get_texture(RID p_render_target) const;
+	virtual void render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id);
 
 	virtual void render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value);
 	virtual bool render_target_was_used(RID p_render_target);
diff --git a/drivers/gles3/shader_gles3.h b/drivers/gles3/shader_gles3.h
index 1ed30986bf..be2c34ba07 100644
--- a/drivers/gles3/shader_gles3.h
+++ b/drivers/gles3/shader_gles3.h
@@ -289,7 +289,9 @@ private:
 
 				glUniformMatrix4fv(p_uniform, 1, false, matrix);
 			} break;
-			default: { ERR_FAIL(); } // do nothing
+			default: {
+				ERR_FAIL();
+			} // do nothing
 		}
 	}
 
diff --git a/drivers/gles3/shaders/effect_blur.glsl b/drivers/gles3/shaders/effect_blur.glsl
index fc15ca31b1..ff5a9f326f 100644
--- a/drivers/gles3/shaders/effect_blur.glsl
+++ b/drivers/gles3/shaders/effect_blur.glsl
@@ -117,12 +117,13 @@ void main() {
 #ifdef GAUSSIAN_HORIZONTAL
 	vec2 pix_size = pixel_size;
 	pix_size *= 0.5; //reading from larger buffer, so use more samples
+	// sigma 2
 	vec4 color = textureLod(source_color, uv_interp + vec2(0.0, 0.0) * pix_size, lod) * 0.214607;
 	color += textureLod(source_color, uv_interp + vec2(1.0, 0.0) * pix_size, lod) * 0.189879;
-	color += textureLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.157305;
+	color += textureLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.131514;
 	color += textureLod(source_color, uv_interp + vec2(3.0, 0.0) * pix_size, lod) * 0.071303;
 	color += textureLod(source_color, uv_interp + vec2(-1.0, 0.0) * pix_size, lod) * 0.189879;
-	color += textureLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.157305;
+	color += textureLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.131514;
 	color += textureLod(source_color, uv_interp + vec2(-3.0, 0.0) * pix_size, lod) * 0.071303;
 	frag_color = color;
 #endif
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl
index 630e1c2089..4f54fd4ac2 100644
--- a/drivers/gles3/shaders/scene.glsl
+++ b/drivers/gles3/shaders/scene.glsl
@@ -1802,6 +1802,7 @@ FRAGMENT_SHADER_CODE
 	ambient_light = vec3(0.0, 0.0, 0.0);
 #else
 	ambient_light = ambient_light_color.rgb;
+	env_reflection_light = bg_color.rgb * bg_energy;
 #endif //AMBIENT_LIGHT_DISABLED
 
 #endif
@@ -1813,6 +1814,39 @@ FRAGMENT_SHADER_CODE
 	specular_blob_intensity *= specular * 2.0;
 #endif
 
+#ifdef USE_FORWARD_LIGHTING
+
+	highp vec4 reflection_accum = vec4(0.0, 0.0, 0.0, 0.0);
+	highp vec4 ambient_accum = vec4(0.0, 0.0, 0.0, 0.0);
+	for (int i = 0; i < reflection_count; i++) {
+		reflection_process(reflection_indices[i], vertex, normal, binormal, tangent, roughness, anisotropy, ambient_light, env_reflection_light, reflection_accum, ambient_accum);
+	}
+
+	if (reflection_accum.a > 0.0) {
+		specular_light += reflection_accum.rgb / reflection_accum.a;
+	} else {
+		specular_light += env_reflection_light;
+	}
+#if !defined(USE_LIGHTMAP) && !defined(USE_LIGHTMAP_CAPTURE)
+	if (ambient_accum.a > 0.0) {
+		ambient_light = ambient_accum.rgb / ambient_accum.a;
+	}
+#endif
+
+	// scales the specular reflections, needs to be be computed before lighting happens,
+	// but after environment and reflection probes are added
+	// Environment brdf approximation (Lazarov 2013)
+	// see https://www.unrealengine.com/en-US/blog/physically-based-shading-on-mobile
+	const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022);
+	const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04);
+	vec4 r = roughness * c0 + c1;
+	float ndotv = clamp(dot(normal, eye_vec), 0.0, 1.0);
+	float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y;
+	vec2 env = vec2(-1.04, 1.04) * a004 + r.zw;
+
+	vec3 f0 = F0(metallic, specular, albedo);
+	env_reflection_light *= env.x * f0 + env.y;
+
 #if defined(USE_LIGHT_DIRECTIONAL)
 
 	vec3 light_attenuation = vec3(1.0);
@@ -2004,25 +2038,6 @@ FRAGMENT_SHADER_CODE
 	}
 #endif
 
-#ifdef USE_FORWARD_LIGHTING
-
-	highp vec4 reflection_accum = vec4(0.0, 0.0, 0.0, 0.0);
-	highp vec4 ambient_accum = vec4(0.0, 0.0, 0.0, 0.0);
-	for (int i = 0; i < reflection_count; i++) {
-		reflection_process(reflection_indices[i], vertex, normal, binormal, tangent, roughness, anisotropy, ambient_light, env_reflection_light, reflection_accum, ambient_accum);
-	}
-
-	if (reflection_accum.a > 0.0) {
-		specular_light += reflection_accum.rgb / reflection_accum.a;
-	} else {
-		specular_light += env_reflection_light;
-	}
-#if !defined(USE_LIGHTMAP) && !defined(USE_LIGHTMAP_CAPTURE)
-	if (ambient_accum.a > 0.0) {
-		ambient_light = ambient_accum.rgb / ambient_accum.a;
-	}
-#endif
-
 #ifdef USE_VERTEX_LIGHTING
 
 	diffuse_light *= albedo;
@@ -2063,18 +2078,6 @@ FRAGMENT_SHADER_CODE
 #if defined(DIFFUSE_TOON)
 		//simplify for toon, as
 		specular_light *= specular * metallic * albedo * 2.0;
-#else
-		// Environment brdf approximation (Lazarov 2013)
-		// see https://www.unrealengine.com/en-US/blog/physically-based-shading-on-mobile
-		const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022);
-		const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04);
-		vec4 r = roughness * c0 + c1;
-		float ndotv = clamp(dot(normal, eye_vec), 0.0, 1.0);
-		float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y;
-		vec2 env = vec2(-1.04, 1.04) * a004 + r.zw;
-
-		vec3 f0 = F0(metallic, specular, albedo);
-		specular_light *= env.x * f0 + env.y;
 #endif
 	}
 
diff --git a/drivers/png/SCsub b/drivers/png/SCsub
index 97ba1de3db..9dc80244ff 100644
--- a/drivers/png/SCsub
+++ b/drivers/png/SCsub
@@ -26,9 +26,9 @@ if env['builtin_libpng']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_png.Append(CPPPATH=[thirdparty_dir])
+    env_png.Prepend(CPPPATH=[thirdparty_dir])
     # Needed for drivers includes and in platform/javascript
-    env.Append(CPPPATH=[thirdparty_dir])
+    env.Prepend(CPPPATH=[thirdparty_dir])
 
     # Currently .ASM filter_neon.S does not compile on NT.
     import os
diff --git a/drivers/unix/file_access_unix.cpp b/drivers/unix/file_access_unix.cpp
index 6e045817bc..a285b3b65f 100644
--- a/drivers/unix/file_access_unix.cpp
+++ b/drivers/unix/file_access_unix.cpp
@@ -293,8 +293,25 @@ uint64_t FileAccessUnix::_get_modified_time(const String &p_file) {
 	};
 }
 
-Error FileAccessUnix::_chmod(const String &p_path, int p_mod) {
-	int err = chmod(p_path.utf8().get_data(), p_mod);
+uint32_t FileAccessUnix::_get_unix_permissions(const String &p_file) {
+
+	String file = fix_path(p_file);
+	struct stat flags;
+	int err = stat(file.utf8().get_data(), &flags);
+
+	if (!err) {
+		return flags.st_mode & 0x7FF; //only permissions
+	} else {
+		ERR_EXPLAIN("Failed to get unix permissions for: " + p_file);
+		ERR_FAIL_V(0);
+	};
+}
+
+Error FileAccessUnix::_set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+
+	String file = fix_path(p_file);
+
+	int err = chmod(file.utf8().get_data(), p_permissions);
 	if (!err) {
 		return OK;
 	}
diff --git a/drivers/unix/file_access_unix.h b/drivers/unix/file_access_unix.h
index 6405589b4d..2a369048a4 100644
--- a/drivers/unix/file_access_unix.h
+++ b/drivers/unix/file_access_unix.h
@@ -85,8 +85,8 @@ public:
 	virtual bool file_exists(const String &p_path); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file);
-
-	virtual Error _chmod(const String &p_path, int p_mod);
+	virtual uint32_t _get_unix_permissions(const String &p_file);
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
 
 	FileAccessUnix();
 	virtual ~FileAccessUnix();
diff --git a/drivers/unix/net_socket_posix.cpp b/drivers/unix/net_socket_posix.cpp
index 2dffa083fe..37abccbe27 100644
--- a/drivers/unix/net_socket_posix.cpp
+++ b/drivers/unix/net_socket_posix.cpp
@@ -177,6 +177,13 @@ NetSocketPosix::~NetSocketPosix() {
 	close();
 }
 
+// Silent a warning reported in #27594
+
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wlogical-op"
+#endif
+
 NetSocketPosix::NetError NetSocketPosix::_get_socket_error() {
 #if defined(WINDOWS_ENABLED)
 	int err = WSAGetLastError();
@@ -201,6 +208,10 @@ NetSocketPosix::NetError NetSocketPosix::_get_socket_error() {
 #endif
 }
 
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+
 bool NetSocketPosix::_can_use_ip(const IP_Address p_ip, const bool p_for_bind) const {
 
 	if (p_for_bind && !(p_ip.is_valid() || p_ip.is_wildcard())) {
diff --git a/drivers/unix/os_unix.cpp b/drivers/unix/os_unix.cpp
index e7550903a8..25cdc8d8a0 100644
--- a/drivers/unix/os_unix.cpp
+++ b/drivers/unix/os_unix.cpp
@@ -108,6 +108,7 @@ void OS_Unix::initialize_debugging() {
 
 	if (ScriptDebugger::get_singleton() != NULL) {
 		struct sigaction action;
+		memset(&action, 0, sizeof(action));
 		action.sa_handler = handle_interrupt;
 		sigaction(SIGINT, &action, NULL);
 	}
@@ -118,15 +119,6 @@ int OS_Unix::unix_initialize_audio(int p_audio_driver) {
 	return 0;
 }
 
-// Very simple signal handler to reap processes where ::execute was called with
-// !p_blocking
-void handle_sigchld(int sig) {
-	int saved_errno = errno;
-	while (waitpid((pid_t)(-1), 0, WNOHANG) > 0) {
-	}
-	errno = saved_errno;
-}
-
 void OS_Unix::initialize_core() {
 
 #ifdef NO_THREADS
@@ -154,14 +146,6 @@ void OS_Unix::initialize_core() {
 #endif
 
 	_setup_clock();
-
-	struct sigaction sa;
-	sa.sa_handler = &handle_sigchld;
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = SA_RESTART | SA_NOCLDSTOP;
-	if (sigaction(SIGCHLD, &sa, 0) == -1) {
-		perror("ERROR sigaction() failed:");
-	}
 }
 
 void OS_Unix::finalize_core() {
@@ -292,7 +276,7 @@ uint64_t OS_Unix::get_ticks_usec() const {
 	return longtime;
 }
 
-Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id, String *r_pipe, int *r_exitcode, bool read_stderr) {
+Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex) {
 
 #ifdef __EMSCRIPTEN__
 	// Don't compile this code at all to avoid undefined references.
@@ -319,11 +303,17 @@ Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, bo
 		ERR_FAIL_COND_V(!f, ERR_CANT_OPEN);
 
 		char buf[65535];
+
 		while (fgets(buf, 65535, f)) {
 
+			if (p_pipe_mutex) {
+				p_pipe_mutex->lock();
+			}
 			(*r_pipe) += buf;
+			if (p_pipe_mutex) {
+				p_pipe_mutex->unlock();
+			}
 		}
-
 		int rv = pclose(f);
 		if (r_exitcode)
 			*r_exitcode = rv;
@@ -336,6 +326,13 @@ Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, bo
 
 	if (pid == 0) {
 		// is child
+
+		if (!p_blocking) {
+			// For non blocking calls, create a new session-ID so parent won't wait for it.
+			// This ensures the process won't go zombie at end.
+			setsid();
+		}
+
 		Vector<CharString> cs;
 		cs.push_back(p_path.utf8());
 		for (int i = 0; i < p_arguments.size(); i++)
@@ -358,6 +355,7 @@ Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, bo
 		waitpid(pid, &status, 0);
 		if (r_exitcode)
 			*r_exitcode = WEXITSTATUS(status);
+
 	} else {
 
 		if (r_child_id)
diff --git a/drivers/unix/os_unix.h b/drivers/unix/os_unix.h
index 09ab4aa1d8..6a05877a8c 100644
--- a/drivers/unix/os_unix.h
+++ b/drivers/unix/os_unix.h
@@ -89,7 +89,7 @@ public:
 	virtual void delay_usec(uint32_t p_usec) const;
 	virtual uint64_t get_ticks_usec() const;
 
-	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false);
+	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL);
 	virtual Error kill(const ProcessID &p_pid);
 	virtual int get_process_id() const;
 
diff --git a/drivers/windows/dir_access_windows.cpp b/drivers/windows/dir_access_windows.cpp
index 2f705ec87d..9eac15f774 100644
--- a/drivers/windows/dir_access_windows.cpp
+++ b/drivers/windows/dir_access_windows.cpp
@@ -394,7 +394,7 @@ DirAccessWindows::DirAccessWindows() {
 
 		if (mask & (1 << i)) { //DRIVE EXISTS
 
-			drives[drive_count] = 'a' + i;
+			drives[drive_count] = 'A' + i;
 			drive_count++;
 		}
 	}
diff --git a/drivers/windows/file_access_windows.cpp b/drivers/windows/file_access_windows.cpp
index babb393dcb..c13300d09f 100644
--- a/drivers/windows/file_access_windows.cpp
+++ b/drivers/windows/file_access_windows.cpp
@@ -197,12 +197,14 @@ void FileAccessWindows::seek(size_t p_position) {
 	last_error = OK;
 	if (fseek(f, p_position, SEEK_SET))
 		check_errors();
+	prev_op = 0;
 }
 void FileAccessWindows::seek_end(int64_t p_position) {
 
 	ERR_FAIL_COND(!f);
 	if (fseek(f, p_position, SEEK_END))
 		check_errors();
+	prev_op = 0;
 }
 size_t FileAccessWindows::get_position() const {
 
@@ -234,6 +236,12 @@ bool FileAccessWindows::eof_reached() const {
 uint8_t FileAccessWindows::get_8() const {
 
 	ERR_FAIL_COND_V(!f, 0);
+	if (flags == READ_WRITE || flags == WRITE_READ) {
+		if (prev_op == WRITE) {
+			fflush(f);
+		}
+		prev_op = READ;
+	}
 	uint8_t b;
 	if (fread(&b, 1, 1, f) == 0) {
 		check_errors();
@@ -246,6 +254,12 @@ uint8_t FileAccessWindows::get_8() const {
 int FileAccessWindows::get_buffer(uint8_t *p_dst, int p_length) const {
 
 	ERR_FAIL_COND_V(!f, -1);
+	if (flags == READ_WRITE || flags == WRITE_READ) {
+		if (prev_op == WRITE) {
+			fflush(f);
+		}
+		prev_op = READ;
+	}
 	int read = fread(p_dst, 1, p_length, f);
 	check_errors();
 	return read;
@@ -260,16 +274,34 @@ void FileAccessWindows::flush() {
 
 	ERR_FAIL_COND(!f);
 	fflush(f);
+	if (prev_op == WRITE)
+		prev_op = 0;
 }
 
 void FileAccessWindows::store_8(uint8_t p_dest) {
 
 	ERR_FAIL_COND(!f);
+	if (flags == READ_WRITE || flags == WRITE_READ) {
+		if (prev_op == READ) {
+			if (last_error != ERR_FILE_EOF) {
+				fseek(f, 0, SEEK_CUR);
+			}
+		}
+		prev_op = WRITE;
+	}
 	fwrite(&p_dest, 1, 1, f);
 }
 
 void FileAccessWindows::store_buffer(const uint8_t *p_src, int p_length) {
 	ERR_FAIL_COND(!f);
+	if (flags == READ_WRITE || flags == WRITE_READ) {
+		if (prev_op == READ) {
+			if (last_error != ERR_FILE_EOF) {
+				fseek(f, 0, SEEK_CUR);
+			}
+		}
+		prev_op = WRITE;
+	}
 	ERR_FAIL_COND(fwrite(p_src, 1, p_length, f) != p_length);
 }
 
@@ -307,9 +339,20 @@ uint64_t FileAccessWindows::_get_modified_time(const String &p_file) {
 	}
 }
 
+uint32_t FileAccessWindows::_get_unix_permissions(const String &p_file) {
+	ERR_PRINT("Windows does not support unix permissions");
+	return 0;
+}
+
+Error FileAccessWindows::_set_unix_permissions(const String &p_file, uint32_t p_permissions) {
+	ERR_PRINT("Windows does not support unix permissions");
+	return FAILED;
+}
+
 FileAccessWindows::FileAccessWindows() :
 		f(NULL),
 		flags(0),
+		prev_op(0),
 		last_error(OK) {
 }
 FileAccessWindows::~FileAccessWindows() {
diff --git a/drivers/windows/file_access_windows.h b/drivers/windows/file_access_windows.h
index c105eb5265..2848ed5279 100644
--- a/drivers/windows/file_access_windows.h
+++ b/drivers/windows/file_access_windows.h
@@ -47,6 +47,7 @@ class FileAccessWindows : public FileAccess {
 	FILE *f;
 	int flags;
 	void check_errors() const;
+	mutable int prev_op;
 	mutable Error last_error;
 	String path;
 	String path_src;
@@ -79,6 +80,8 @@ public:
 	virtual bool file_exists(const String &p_name); ///< return true if a file exists
 
 	uint64_t _get_modified_time(const String &p_file);
+	virtual uint32_t _get_unix_permissions(const String &p_file);
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
 
 	FileAccessWindows();
 	virtual ~FileAccessWindows();
diff --git a/drivers/windows/semaphore_windows.cpp b/drivers/windows/semaphore_windows.cpp
index 718bb81836..55b47e45eb 100644
--- a/drivers/windows/semaphore_windows.cpp
+++ b/drivers/windows/semaphore_windows.cpp
@@ -54,7 +54,8 @@ int SemaphoreWindows::get() const {
 		case WAIT_TIMEOUT: {
 			return 0;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	ERR_FAIL_V(-1);
diff --git a/drivers/xaudio2/SCsub b/drivers/xaudio2/SCsub
index 3dca95b429..dfc877b6f5 100644
--- a/drivers/xaudio2/SCsub
+++ b/drivers/xaudio2/SCsub
@@ -3,5 +3,5 @@
 Import('env')
 
 env.add_source_files(env.drivers_sources, "*.cpp")
-env.Append(CXXFLAGS=['-DXAUDIO2_ENABLED'])
+env.Append(CPPFLAGS=['-DXAUDIO2_ENABLED'])
 env.Append(LINKFLAGS=['xaudio2_8.lib'])
diff --git a/drivers/xaudio2/audio_driver_xaudio2.cpp b/drivers/xaudio2/audio_driver_xaudio2.cpp
index d1f63f4866..8674d24af6 100644
--- a/drivers/xaudio2/audio_driver_xaudio2.cpp
+++ b/drivers/xaudio2/audio_driver_xaudio2.cpp
@@ -45,12 +45,12 @@ Error AudioDriverXAudio2::init() {
 	pcm_open = false;
 	samples_in = NULL;
 
-	mix_rate = 48000;
+	mix_rate = GLOBAL_DEF_RST("audio/mix_rate", DEFAULT_MIX_RATE);
 	// FIXME: speaker_mode seems unused in the Xaudio2 driver so far
 	speaker_mode = SPEAKER_MODE_STEREO;
 	channels = 2;
 
-	int latency = GLOBAL_DEF_RST("audio/output_latency", 25);
+	int latency = GLOBAL_DEF_RST("audio/output_latency", DEFAULT_OUTPUT_LATENCY);
 	buffer_size = closest_power_of_2(latency * mix_rate / 1000);
 
 	samples_in = memnew_arr(int32_t, buffer_size * channels);
diff --git a/editor/animation_bezier_editor.cpp b/editor/animation_bezier_editor.cpp
index f6d4a2665c..e524dffd43 100644
--- a/editor/animation_bezier_editor.cpp
+++ b/editor/animation_bezier_editor.cpp
@@ -453,6 +453,8 @@ void AnimationBezierTrackEdit::_notification(int p_what) {
 					ep.point_rect.size = bezier_icon->get_size();
 					if (selection.has(i)) {
 						draw_texture(selected_icon, ep.point_rect.position);
+						draw_string(font, ep.point_rect.position + Vector2(8, -font->get_height() - 4), TTR("Time:") + " " + rtos(Math::stepify(offset, 0.001)), accent);
+						draw_string(font, ep.point_rect.position + Vector2(8, -8), TTR("Value:") + " " + rtos(Math::stepify(value, 0.001)), accent);
 					} else {
 						draw_texture(bezier_icon, ep.point_rect.position);
 					}
@@ -518,6 +520,12 @@ void AnimationBezierTrackEdit::set_animation_and_track(const Ref<Animation> &p_a
 
 	animation = p_animation;
 	track = p_track;
+	if (is_connected("select_key", editor, "_key_selected"))
+		disconnect("select_key", editor, "_key_selected");
+	if (is_connected("deselect_key", editor, "_key_deselected"))
+		disconnect("deselect_key", editor, "_key_deselected");
+	connect("select_key", editor, "_key_selected", varray(p_track), CONNECT_DEFERRED);
+	connect("deselect_key", editor, "_key_deselected", varray(p_track), CONNECT_DEFERRED);
 	update();
 }
 
@@ -536,6 +544,7 @@ void AnimationBezierTrackEdit::set_timeline(AnimationTimelineEdit *p_timeline) {
 }
 void AnimationBezierTrackEdit::set_editor(AnimationTrackEditor *p_editor) {
 	editor = p_editor;
+	connect("clear_selection", editor, "_clear_selection");
 }
 
 void AnimationBezierTrackEdit::_play_position_draw() {
@@ -578,6 +587,7 @@ String AnimationBezierTrackEdit::get_tooltip(const Point2 &p_pos) const {
 
 void AnimationBezierTrackEdit::_clear_selection() {
 	selection.clear();
+	emit_signal("clear_selection");
 	update();
 }
 
@@ -598,6 +608,7 @@ void AnimationBezierTrackEdit::_select_at_anim(const Ref<Animation> &p_anim, int
 	ERR_FAIL_COND(idx < 0);
 
 	selection.insert(idx);
+	emit_signal("select_key", idx, true);
 	update();
 }
 
@@ -653,20 +664,22 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 	if (mb.is_valid() && mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed()) {
 
 		menu_insert_key = mb->get_position();
-		Vector2 popup_pos = get_global_transform().xform(mb->get_position());
-
-		menu->clear();
-		menu->add_icon_item(bezier_icon, TTR("Insert Key Here"), MENU_KEY_INSERT);
-		if (selection.size()) {
-			menu->add_separator();
-			menu->add_icon_item(get_icon("Duplicate", "EditorIcons"), TTR("Duplicate Selected Key(s)"), MENU_KEY_DUPLICATE);
-			menu->add_separator();
-			menu->add_icon_item(get_icon("Remove", "EditorIcons"), TTR("Delete Selected Key(s)"), MENU_KEY_DELETE);
-		}
+		if (menu_insert_key.x >= timeline->get_name_limit() && menu_insert_key.x <= get_size().width - timeline->get_buttons_width()) {
+			Vector2 popup_pos = get_global_transform().xform(mb->get_position());
+
+			menu->clear();
+			menu->add_icon_item(bezier_icon, TTR("Insert Key Here"), MENU_KEY_INSERT);
+			if (selection.size()) {
+				menu->add_separator();
+				menu->add_icon_item(get_icon("Duplicate", "EditorIcons"), TTR("Duplicate Selected Key(s)"), MENU_KEY_DUPLICATE);
+				menu->add_separator();
+				menu->add_icon_item(get_icon("Remove", "EditorIcons"), TTR("Delete Selected Key(s)"), MENU_KEY_DELETE);
+			}
 
-		menu->set_as_minsize();
-		menu->set_position(popup_pos);
-		menu->popup();
+			menu->set_as_minsize();
+			menu->set_position(popup_pos);
+			menu->popup();
+		}
 	}
 
 	if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
@@ -678,6 +691,7 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 		for (Map<int, Rect2>::Element *E = subtracks.front(); E; E = E->next()) {
 			if (E->get().has_point(mb->get_position())) {
 				set_animation_and_track(animation, E->key());
+				_clear_selection();
 				return;
 			}
 		}
@@ -850,7 +864,7 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 			// 2- remove overlapped keys
 			for (Set<int>::Element *E = selection.back(); E; E = E->prev()) {
 
-				float newtime = animation->track_get_key_time(track, E->get()) + moving_selection_offset.x;
+				float newtime = editor->snap_time(animation->track_get_key_time(track, E->get()) + moving_selection_offset.x);
 
 				int idx = animation->track_find_key(track, newtime, true);
 				if (idx == -1)
@@ -872,7 +886,7 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 			// 3-move the keys (re insert them)
 			for (Set<int>::Element *E = selection.back(); E; E = E->prev()) {
 
-				float newpos = animation->track_get_key_time(track, E->get()) + moving_selection_offset.x;
+				float newpos = editor->snap_time(animation->track_get_key_time(track, E->get()) + moving_selection_offset.x);
 				/*
 				if (newpos<0)
 					continue; //no add at the beginning
@@ -887,7 +901,7 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 			// 4-(undo) remove inserted keys
 			for (Set<int>::Element *E = selection.back(); E; E = E->prev()) {
 
-				float newpos = animation->track_get_key_time(track, E->get()) + moving_selection_offset.x;
+				float newpos = editor->snap_time(animation->track_get_key_time(track, E->get()) + moving_selection_offset.x);
 				/*
 				if (newpos<0)
 					continue; //no remove what no inserted
@@ -924,7 +938,7 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 			for (Set<int>::Element *E = selection.back(); E; E = E->prev()) {
 
 				float oldpos = animation->track_get_key_time(track, E->get());
-				float newpos = oldpos + moving_selection_offset.x;
+				float newpos = editor->snap_time(oldpos + moving_selection_offset.x);
 
 				undo_redo->add_do_method(this, "_select_at_anim", animation, track, newpos);
 				undo_redo->add_undo_method(this, "_select_at_anim", animation, track, oldpos);
@@ -965,7 +979,7 @@ void AnimationBezierTrackEdit::_gui_input(const Ref<InputEvent> &p_event) {
 		}
 
 		float y = (get_size().height / 2 - mm->get_position().y) * v_zoom + v_scroll;
-		float x = ((mm->get_position().x - timeline->get_name_limit()) / timeline->get_zoom_scale()) + timeline->get_value();
+		float x = editor->snap_time(((mm->get_position().x - timeline->get_name_limit()) / timeline->get_zoom_scale()) + timeline->get_value());
 
 		moving_selection_offset = Vector2(x - animation->track_get_key_time(track, moving_selection_from_key), y - animation->bezier_track_get_key_value(track, moving_selection_from_key));
 		update();
@@ -1154,8 +1168,8 @@ void AnimationBezierTrackEdit::_bind_methods() {
 	ClassDB::bind_method("_play_position_draw", &AnimationBezierTrackEdit::_play_position_draw);
 
 	ClassDB::bind_method("_clear_selection", &AnimationBezierTrackEdit::_clear_selection);
-	ClassDB::bind_method("_clear_selection_for_anim", &AnimationBezierTrackEdit::_clear_selection);
-	ClassDB::bind_method("_select_at_anim", &AnimationBezierTrackEdit::_clear_selection);
+	ClassDB::bind_method("_clear_selection_for_anim", &AnimationBezierTrackEdit::_clear_selection_for_anim);
+	ClassDB::bind_method("_select_at_anim", &AnimationBezierTrackEdit::_select_at_anim);
 
 	ADD_SIGNAL(MethodInfo("timeline_changed", PropertyInfo(Variant::REAL, "position"), PropertyInfo(Variant::BOOL, "drag")));
 	ADD_SIGNAL(MethodInfo("remove_request", PropertyInfo(Variant::INT, "track")));
diff --git a/editor/animation_track_editor.cpp b/editor/animation_track_editor.cpp
index 8807a01f64..61244ab78c 100644
--- a/editor/animation_track_editor.cpp
+++ b/editor/animation_track_editor.cpp
@@ -109,9 +109,17 @@ public:
 		ERR_FAIL_COND_V(key == -1, false);
 
 		String name = p_name;
-		if (name == "time") {
+		if (name == "time" || name == "frame") {
 
 			float new_time = p_value;
+
+			if (name == "frame") {
+				float fps = animation->get_step();
+				if (fps > 0) {
+					fps = 1.0 / fps;
+				}
+				new_time /= fps;
+			}
 			if (new_time == key_ofs)
 				return true;
 
@@ -301,8 +309,8 @@ public:
 					setting = true;
 					undo_redo->create_action(TTR("Anim Change Keyframe Value"), UndoRedo::MERGE_ENDS);
 					Vector2 prev = animation->bezier_track_get_key_in_handle(track, key);
-					undo_redo->add_do_method(animation.ptr(), "bezier_track_set_in_handle", track, key, value);
-					undo_redo->add_undo_method(animation.ptr(), "bezier_track_set_in_handle", track, key, prev);
+					undo_redo->add_do_method(animation.ptr(), "bezier_track_set_key_in_handle", track, key, value);
+					undo_redo->add_undo_method(animation.ptr(), "bezier_track_set_key_in_handle", track, key, prev);
 					undo_redo->add_do_method(this, "_update_obj", animation);
 					undo_redo->add_undo_method(this, "_update_obj", animation);
 					undo_redo->commit_action();
@@ -317,8 +325,8 @@ public:
 					setting = true;
 					undo_redo->create_action(TTR("Anim Change Keyframe Value"), UndoRedo::MERGE_ENDS);
 					Vector2 prev = animation->bezier_track_get_key_out_handle(track, key);
-					undo_redo->add_do_method(animation.ptr(), "bezier_track_set_out_handle", track, key, value);
-					undo_redo->add_undo_method(animation.ptr(), "bezier_track_set_out_handle", track, key, prev);
+					undo_redo->add_do_method(animation.ptr(), "bezier_track_set_key_out_handle", track, key, value);
+					undo_redo->add_undo_method(animation.ptr(), "bezier_track_set_key_out_handle", track, key, prev);
 					undo_redo->add_do_method(this, "_update_obj", animation);
 					undo_redo->add_undo_method(this, "_update_obj", animation);
 					undo_redo->commit_action();
@@ -413,6 +421,13 @@ public:
 		if (name == "time") {
 			r_ret = key_ofs;
 			return true;
+		} else if (name == "frame") {
+			float fps = animation->get_step();
+			if (fps > 0) {
+				fps = 1.0 / fps;
+			}
+			r_ret = key_ofs * fps;
+			return true;
 		} else if (name == "easing") {
 			r_ret = animation->track_get_key_transition(track, key);
 			return true;
@@ -527,7 +542,12 @@ public:
 		int key = animation->track_find_key(track, key_ofs, true);
 		ERR_FAIL_COND(key == -1);
 
-		p_list->push_back(PropertyInfo(Variant::REAL, "time", PROPERTY_HINT_RANGE, "0," + rtos(animation->get_length()) + ",0.01"));
+		if (use_fps && animation->get_step() > 0) {
+			float max_frame = animation->get_length() / animation->get_step();
+			p_list->push_back(PropertyInfo(Variant::REAL, "frame", PROPERTY_HINT_RANGE, "0," + rtos(max_frame) + ",1"));
+		} else {
+			p_list->push_back(PropertyInfo(Variant::REAL, "time", PROPERTY_HINT_RANGE, "0," + rtos(animation->get_length()) + ",0.01"));
+		}
 
 		switch (animation->track_get_type(track)) {
 
@@ -648,6 +668,7 @@ public:
 
 	PropertyInfo hint;
 	NodePath base;
+	bool use_fps;
 
 	void notify_change() {
 
@@ -658,7 +679,13 @@ public:
 		return root_path;
 	}
 
+	void set_use_fps(bool p_enable) {
+		use_fps = p_enable;
+		_change_notify();
+	}
+
 	AnimationTrackKeyEdit() {
+		use_fps = false;
 		key_ofs = 0;
 		track = -1;
 		setting = false;
@@ -690,6 +717,9 @@ void AnimationTimelineEdit::_anim_length_changed(double p_new_len) {
 		return;
 
 	p_new_len = MAX(0.001, p_new_len);
+	if (use_fps && animation->get_step() > 0) {
+		p_new_len *= animation->get_step();
+	}
 
 	editing = true;
 	undo_redo->create_action(TTR("Change Animation Length"));
@@ -887,24 +917,53 @@ void AnimationTimelineEdit::_notification(int p_what) {
 				decimals = 0;
 		}
 
-		for (int i = 0; i < zoomw; i++) {
+		if (use_fps) {
+
+			float step_size = animation->get_step();
+			if (step_size > 0) {
+
+				int prev_frame_ofs = -10000000;
+
+				for (int i = 0; i < zoomw; i++) {
+
+					float pos = get_value() + double(i) / scale;
+					float prev = get_value() + (double(i) - 1.0) / scale;
+
+					int frame = pos / step_size;
+					int prev_frame = prev / step_size;
+
+					bool sub = Math::floor(prev) == Math::floor(pos);
+
+					if (frame != prev_frame && i >= prev_frame_ofs) {
+
+						draw_line(Point2(get_name_limit() + i, 0), Point2(get_name_limit() + i, h), linecolor, Math::round(EDSCALE));
+
+						draw_string(font, Point2(get_name_limit() + i + 3 * EDSCALE, (h - font->get_height()) / 2 + font->get_ascent()).floor(), itos(frame), sub ? color_time_dec : color_time_sec, zoomw - i);
+						prev_frame_ofs = i + font->get_string_size(itos(frame)).x + 5 * EDSCALE;
+					}
+				}
+			}
+
+		} else {
+			for (int i = 0; i < zoomw; i++) {
 
-			float pos = get_value() + double(i) / scale;
-			float prev = get_value() + (double(i) - 1.0) / scale;
+				float pos = get_value() + double(i) / scale;
+				float prev = get_value() + (double(i) - 1.0) / scale;
 
-			int sc = int(Math::floor(pos * SC_ADJ));
-			int prev_sc = int(Math::floor(prev * SC_ADJ));
-			bool sub = (sc % SC_ADJ);
+				int sc = int(Math::floor(pos * SC_ADJ));
+				int prev_sc = int(Math::floor(prev * SC_ADJ));
+				bool sub = (sc % SC_ADJ);
 
-			if ((sc / step) != (prev_sc / step) || (prev_sc < 0 && sc >= 0)) {
+				if ((sc / step) != (prev_sc / step) || (prev_sc < 0 && sc >= 0)) {
 
-				int scd = sc < 0 ? prev_sc : sc;
-				draw_line(Point2(get_name_limit() + i, 0), Point2(get_name_limit() + i, h), linecolor);
-				draw_string(font, Point2(get_name_limit() + i + 3, (h - font->get_height()) / 2 + font->get_ascent()).floor(), String::num((scd - (scd % step)) / double(SC_ADJ), decimals), sub ? color_time_dec : color_time_sec, zoomw - i);
+					int scd = sc < 0 ? prev_sc : sc;
+					draw_line(Point2(get_name_limit() + i, 0), Point2(get_name_limit() + i, h), linecolor, Math::round(EDSCALE));
+					draw_string(font, Point2(get_name_limit() + i + 3, (h - font->get_height()) / 2 + font->get_ascent()).floor(), String::num((scd - (scd % step)) / double(SC_ADJ), decimals), sub ? color_time_dec : color_time_sec, zoomw - i);
+				}
 			}
 		}
 
-		draw_line(Vector2(0, get_size().height), get_size(), linecolor);
+		draw_line(Vector2(0, get_size().height), get_size(), linecolor, Math::round(EDSCALE));
 	}
 }
 
@@ -961,7 +1020,17 @@ void AnimationTimelineEdit::update_values() {
 		return;
 
 	editing = true;
-	length->set_value(animation->get_length());
+	if (use_fps && animation->get_step() > 0) {
+		length->set_value(animation->get_length() / animation->get_step());
+		length->set_step(1);
+		length->set_tooltip(TTR("Animation length (frames)"));
+		time_icon->set_tooltip(TTR("Animation length (frames)"));
+	} else {
+		length->set_value(animation->get_length());
+		length->set_step(0.01);
+		length->set_tooltip(TTR("Animation length (seconds)"));
+		time_icon->set_tooltip(TTR("Animation length (seconds)"));
+	}
 	loop->set_pressed(animation->has_loop());
 	editing = false;
 }
@@ -978,7 +1047,7 @@ void AnimationTimelineEdit::_play_position_draw() {
 
 	if (px >= get_name_limit() && px < (play_position->get_size().width - get_buttons_width())) {
 		Color color = get_color("accent_color", "Editor");
-		play_position->draw_line(Point2(px, 0), Point2(px, h), color);
+		play_position->draw_line(Point2(px, 0), Point2(px, h), color, Math::round(EDSCALE));
 	}
 }
 
@@ -1046,6 +1115,15 @@ void AnimationTimelineEdit::_gui_input(const Ref<InputEvent> &p_event) {
 	}
 }
 
+void AnimationTimelineEdit::set_use_fps(bool p_use_fps) {
+	use_fps = p_use_fps;
+	update_values();
+	update();
+}
+bool AnimationTimelineEdit::is_using_fps() const {
+	return use_fps;
+}
+
 void AnimationTimelineEdit::set_hscroll(HScrollBar *p_hscroll) {
 
 	hscroll = p_hscroll;
@@ -1072,6 +1150,7 @@ void AnimationTimelineEdit::_bind_methods() {
 
 AnimationTimelineEdit::AnimationTimelineEdit() {
 
+	use_fps = false;
 	editing = false;
 	name_limit = 150;
 	zoom = NULL;
@@ -1095,16 +1174,16 @@ AnimationTimelineEdit::AnimationTimelineEdit() {
 	len_hb->add_child(expander);
 	time_icon = memnew(TextureRect);
 	time_icon->set_v_size_flags(SIZE_SHRINK_CENTER);
-	time_icon->set_tooltip(TTR("Animation Length Time (seconds)"));
+	time_icon->set_tooltip(TTR("Animation length (seconds)"));
 	len_hb->add_child(time_icon);
 	length = memnew(EditorSpinSlider);
 	length->set_min(0.001);
-	length->set_max(3600);
+	length->set_max(36000);
 	length->set_step(0.01);
 	length->set_allow_greater(true);
 	length->set_custom_minimum_size(Vector2(70 * EDSCALE, 0));
 	length->set_hide_slider(true);
-	length->set_tooltip(TTR("Animation Length Time (seconds)"));
+	length->set_tooltip(TTR("Animation length (seconds)"));
 	length->connect("value_changed", this, "_anim_length_changed");
 	len_hb->add_child(length);
 	loop = memnew(ToolButton);
@@ -1195,13 +1274,7 @@ void AnimationTrackEdit::_notification(int p_what) {
 				} else if (animation->track_get_type(track) == Animation::TYPE_ANIMATION) {
 					text = TTR("Anim Clips:");
 				} else {
-					Vector<StringName> sn = path.get_subnames();
-					for (int i = 0; i < sn.size(); i++) {
-						if (i > 0) {
-							text += ".";
-						}
-						text += sn[i];
-					}
+					text += path.get_concatenated_subnames();
 				}
 				text_color.a *= 0.7;
 			} else if (node) {
@@ -1215,14 +1288,10 @@ void AnimationTrackEdit::_notification(int p_what) {
 				draw_texture(icon, Point2(ofs, int(get_size().height - icon->get_height()) / 2));
 				icon_cache = icon;
 
-				text = node->get_name();
+				text = String() + node->get_name() + ":" + path.get_concatenated_subnames();
 				ofs += hsep;
 				ofs += icon->get_width();
-				Vector<StringName> sn = path.get_subnames();
-				for (int i = 0; i < sn.size(); i++) {
-					text += ".";
-					text += sn[i];
-				}
+
 			} else {
 				icon_cache = type_icon;
 
@@ -1237,7 +1306,7 @@ void AnimationTrackEdit::_notification(int p_what) {
 			string_pos = string_pos.floor();
 			draw_string(font, string_pos, text, text_color, limit - ofs - hsep);
 
-			draw_line(Point2(limit, 0), Point2(limit, get_size().height), linecolor);
+			draw_line(Point2(limit, 0), Point2(limit, get_size().height), linecolor, Math::round(EDSCALE));
 		}
 
 		// KEYFAMES //
@@ -1297,7 +1366,7 @@ void AnimationTrackEdit::_notification(int p_what) {
 
 			Ref<Texture> down_icon = get_icon("select_arrow", "Tree");
 
-			draw_line(Point2(ofs, 0), Point2(ofs, get_size().height), linecolor);
+			draw_line(Point2(ofs, 0), Point2(ofs, get_size().height), linecolor, Math::round(EDSCALE));
 
 			ofs += hsep;
 			{
@@ -1344,7 +1413,7 @@ void AnimationTrackEdit::_notification(int p_what) {
 				}
 
 				ofs += down_icon->get_width();
-				draw_line(Point2(ofs + hsep * 0.5, 0), Point2(ofs + hsep * 0.5, get_size().height), linecolor);
+				draw_line(Point2(ofs + hsep * 0.5, 0), Point2(ofs + hsep * 0.5, get_size().height), linecolor, Math::round(EDSCALE));
 				ofs += hsep;
 			}
 
@@ -1377,7 +1446,7 @@ void AnimationTrackEdit::_notification(int p_what) {
 				}
 
 				ofs += down_icon->get_width();
-				draw_line(Point2(ofs + hsep * 0.5, 0), Point2(ofs + hsep * 0.5, get_size().height), linecolor);
+				draw_line(Point2(ofs + hsep * 0.5, 0), Point2(ofs + hsep * 0.5, get_size().height), linecolor, Math::round(EDSCALE));
 				ofs += hsep;
 			}
 
@@ -1410,7 +1479,7 @@ void AnimationTrackEdit::_notification(int p_what) {
 				}
 
 				ofs += down_icon->get_width();
-				draw_line(Point2(ofs + hsep * 0.5, 0), Point2(ofs + hsep * 0.5, get_size().height), linecolor);
+				draw_line(Point2(ofs + hsep * 0.5, 0), Point2(ofs + hsep * 0.5, get_size().height), linecolor, Math::round(EDSCALE));
 				ofs += hsep;
 			}
 
@@ -1428,17 +1497,17 @@ void AnimationTrackEdit::_notification(int p_what) {
 		}
 
 		if (in_group) {
-			draw_line(Vector2(timeline->get_name_limit(), get_size().height), get_size(), linecolor);
+			draw_line(Vector2(timeline->get_name_limit(), get_size().height), get_size(), linecolor, Math::round(EDSCALE));
 		} else {
-			draw_line(Vector2(0, get_size().height), get_size(), linecolor);
+			draw_line(Vector2(0, get_size().height), get_size(), linecolor, Math::round(EDSCALE));
 		}
 
 		if (dropping_at != 0) {
 			Color drop_color = get_color("accent_color", "Editor");
 			if (dropping_at < 0) {
-				draw_line(Vector2(0, 0), Vector2(get_size().width, 0), drop_color);
+				draw_line(Vector2(0, 0), Vector2(get_size().width, 0), drop_color, Math::round(EDSCALE));
 			} else {
-				draw_line(Vector2(0, get_size().height), get_size(), drop_color);
+				draw_line(Vector2(0, get_size().height), get_size(), drop_color, Math::round(EDSCALE));
 			}
 		}
 	}
@@ -1487,7 +1556,7 @@ void AnimationTrackEdit::draw_key_link(int p_index, float p_pixels_sec, int p_x,
 	int from_x = MAX(p_x, p_clip_left);
 	int to_x = MIN(p_next_x, p_clip_right);
 
-	draw_line(Point2(from_x + 1, get_size().height / 2), Point2(to_x, get_size().height / 2), color, 2);
+	draw_line(Point2(from_x + 1, get_size().height / 2), Point2(to_x, get_size().height / 2), color, Math::round(2 * EDSCALE));
 }
 
 void AnimationTrackEdit::draw_key(int p_index, float p_pixels_sec, int p_x, bool p_selected, int p_clip_left, int p_clip_right) {
@@ -1667,7 +1736,7 @@ void AnimationTrackEdit::_play_position_draw() {
 
 	if (px >= timeline->get_name_limit() && px < (get_size().width - timeline->get_buttons_width())) {
 		Color color = get_color("accent_color", "Editor");
-		play_position->draw_line(Point2(px, 0), Point2(px, h), color);
+		play_position->draw_line(Point2(px, 0), Point2(px, h), color, Math::round(EDSCALE));
 	}
 }
 
@@ -2370,9 +2439,9 @@ void AnimationTrackEditGroup::_notification(int p_what) {
 		Color linecolor = color;
 		linecolor.a = 0.2;
 
-		draw_line(Point2(), Point2(get_size().width, 0), linecolor);
-		draw_line(Point2(timeline->get_name_limit(), 0), Point2(timeline->get_name_limit(), get_size().height), linecolor);
-		draw_line(Point2(get_size().width - timeline->get_buttons_width(), 0), Point2(get_size().width - timeline->get_buttons_width(), get_size().height), linecolor);
+		draw_line(Point2(), Point2(get_size().width, 0), linecolor, Math::round(EDSCALE));
+		draw_line(Point2(timeline->get_name_limit(), 0), Point2(timeline->get_name_limit(), get_size().height), linecolor, Math::round(EDSCALE));
+		draw_line(Point2(get_size().width - timeline->get_buttons_width(), 0), Point2(get_size().width - timeline->get_buttons_width(), get_size().height), linecolor, Math::round(EDSCALE));
 
 		int ofs = 0;
 		draw_texture(icon, Point2(ofs, int(get_size().height - icon->get_height()) / 2));
@@ -2383,7 +2452,7 @@ void AnimationTrackEditGroup::_notification(int p_what) {
 
 		if (px >= timeline->get_name_limit() && px < (get_size().width - timeline->get_buttons_width())) {
 			Color accent = get_color("accent_color", "Editor");
-			draw_line(Point2(px, 0), Point2(px, get_size().height), accent);
+			draw_line(Point2(px, 0), Point2(px, get_size().height), accent, Math::round(EDSCALE));
 		}
 	}
 }
@@ -2462,10 +2531,21 @@ void AnimationTrackEditor::set_animation(const Ref<Animation> &p_anim) {
 		hscroll->show();
 		edit->set_disabled(false);
 		step->set_block_signals(true);
-		step->set_value(animation->get_step());
+
+		_update_step_spinbox();
 		step->set_block_signals(false);
 		step->set_read_only(false);
 		snap->set_disabled(false);
+		snap_mode->set_disabled(false);
+
+		imported_anim_warning->hide();
+		for (int i = 0; i < animation->get_track_count(); i++) {
+			if (animation->track_is_imported(i)) {
+				imported_anim_warning->show();
+				break;
+			}
+		}
+
 	} else {
 		hscroll->hide();
 		edit->set_disabled(true);
@@ -2474,6 +2554,7 @@ void AnimationTrackEditor::set_animation(const Ref<Animation> &p_anim) {
 		step->set_block_signals(false);
 		step->set_read_only(true);
 		snap->set_disabled(true);
+		snap_mode->set_disabled(true);
 	}
 }
 
@@ -2518,6 +2599,43 @@ void AnimationTrackEditor::update_keying() {
 bool AnimationTrackEditor::has_keying() const {
 	return keying;
 }
+Dictionary AnimationTrackEditor::get_state() const {
+	Dictionary state;
+	state["fps_mode"] = timeline->is_using_fps();
+	state["zoom"] = zoom->get_value();
+	state["offset"] = timeline->get_value();
+	state["v_scroll"] = scroll->get_v_scrollbar()->get_value();
+	return state;
+}
+void AnimationTrackEditor::set_state(const Dictionary &p_state) {
+	if (p_state.has("fps_mode")) {
+		bool fps_mode = p_state["fps_mode"];
+		if (fps_mode) {
+			snap_mode->select(1);
+		} else {
+			snap_mode->select(0);
+		}
+		_snap_mode_changed(snap_mode->get_selected());
+	} else {
+		snap_mode->select(0);
+		_snap_mode_changed(snap_mode->get_selected());
+	}
+	if (p_state.has("zoom")) {
+		zoom->set_value(p_state["zoom"]);
+	} else {
+		zoom->set_value(1.0);
+	}
+	if (p_state.has("offset")) {
+		timeline->set_value(p_state["offset"]);
+	} else {
+		timeline->set_value(0);
+	}
+	if (p_state.has("v_scroll")) {
+		scroll->get_v_scrollbar()->set_value(p_state["v_scroll"]);
+	} else {
+		scroll->get_v_scrollbar()->set_value(0);
+	}
+}
 
 void AnimationTrackEditor::cleanup() {
 	set_animation(Ref<Animation>());
@@ -3408,7 +3526,10 @@ void AnimationTrackEditor::_animation_changed() {
 	if (key_edit && key_edit->setting) {
 		//if editing a key, just update the edited track, makes refresh less costly
 		if (key_edit->track < track_edits.size()) {
-			track_edits[key_edit->track]->update();
+			if (animation->track_get_type(key_edit->track) == Animation::TYPE_BEZIER)
+				bezier_edit->update();
+			else
+				track_edits[key_edit->track]->update();
 		}
 		return;
 	}
@@ -3417,6 +3538,34 @@ void AnimationTrackEditor::_animation_changed() {
 	call_deferred("_animation_update");
 }
 
+void AnimationTrackEditor::_snap_mode_changed(int p_mode) {
+
+	timeline->set_use_fps(p_mode == 1);
+	if (key_edit) {
+		key_edit->set_use_fps(p_mode == 1);
+	}
+	_update_step_spinbox();
+}
+
+void AnimationTrackEditor::_update_step_spinbox() {
+	if (!animation.is_valid()) {
+		return;
+	}
+	step->set_block_signals(true);
+
+	if (timeline->is_using_fps()) {
+		if (animation->get_step() == 0) {
+			step->set_value(0);
+		} else {
+			step->set_value(1.0 / animation->get_step());
+		}
+
+	} else {
+		step->set_value(animation->get_step());
+	}
+
+	step->set_block_signals(false);
+}
 void AnimationTrackEditor::_animation_update() {
 
 	timeline->update();
@@ -3454,9 +3603,7 @@ void AnimationTrackEditor::_animation_update() {
 
 	bezier_edit->update();
 
-	step->set_block_signals(true);
-	step->set_value(animation->get_step());
-	step->set_block_signals(false);
+	_update_step_spinbox();
 
 	animation_changing_awaiting_update = false;
 }
@@ -3471,6 +3618,7 @@ void AnimationTrackEditor::_notification(int p_what) {
 		snap->set_icon(get_icon("Snap", "EditorIcons"));
 		view_group->set_icon(get_icon(view_group->is_pressed() ? "AnimationTrackList" : "AnimationTrackGroup", "EditorIcons"));
 		selected_filter->set_icon(get_icon("AnimationFilter", "EditorIcons"));
+		imported_anim_warning->set_icon(get_icon("NodeWarning", "EditorIcons"));
 		main_panel->add_style_override("panel", get_stylebox("bg", "Tree"));
 	}
 
@@ -3497,12 +3645,18 @@ void AnimationTrackEditor::_update_scroll(double) {
 void AnimationTrackEditor::_update_step(double p_new_step) {
 
 	undo_redo->create_action(TTR("Change Animation Step"));
-	undo_redo->add_do_method(animation.ptr(), "set_step", p_new_step);
+	float step_value = p_new_step;
+	if (timeline->is_using_fps()) {
+		if (step_value != 0.0) {
+			step_value = 1.0 / step_value;
+		}
+	}
+	undo_redo->add_do_method(animation.ptr(), "set_step", step_value);
 	undo_redo->add_undo_method(animation.ptr(), "set_step", animation->get_step());
 	step->set_block_signals(true);
 	undo_redo->commit_action();
 	step->set_block_signals(false);
-	emit_signal("animation_step_changed", p_new_step);
+	emit_signal("animation_step_changed", step_value);
 }
 
 void AnimationTrackEditor::_update_length(double p_new_len) {
@@ -3712,7 +3866,7 @@ void AnimationTrackEditor::_insert_key_from_track(float p_ofs, int p_track) {
 	ERR_FAIL_INDEX(p_track, animation->get_track_count());
 
 	if (snap->is_pressed() && step->get_value() != 0) {
-		p_ofs = Math::stepify(p_ofs, step->get_value());
+		p_ofs = snap_time(p_ofs);
 	}
 	while (animation->track_find_key(p_track, p_ofs, true) != -1) { //make sure insertion point is valid
 		p_ofs += 0.001;
@@ -3971,6 +4125,7 @@ void AnimationTrackEditor::_update_key_edit() {
 	key_edit = memnew(AnimationTrackKeyEdit);
 	key_edit->animation = animation;
 	key_edit->track = selection.front()->key().track;
+	key_edit->use_fps = timeline->is_using_fps();
 
 	float ofs = animation->track_get_key_time(key_edit->track, selection.front()->key().key);
 	key_edit->key_ofs = ofs;
@@ -4744,12 +4899,28 @@ void AnimationTrackEditor::_selection_changed() {
 float AnimationTrackEditor::snap_time(float p_value) {
 
 	if (snap->is_pressed()) {
-		p_value = Math::stepify(p_value, step->get_value());
+
+		double snap_increment;
+		if (timeline->is_using_fps() && step->get_value() > 0)
+			snap_increment = 1.0 / step->get_value();
+		else
+			snap_increment = step->get_value();
+
+		p_value = Math::stepify(p_value, snap_increment);
 	}
 
 	return p_value;
 }
 
+void AnimationTrackEditor::_show_imported_anim_warning() const {
+
+	EditorNode::get_singleton()->show_warning(TTR("This animation belongs to an imported scene, so changes to imported tracks will not be saved.\n\n"
+												  "To enable the ability to add custom tracks, navigate to the scene's import settings and set\n"
+												  "\"Animation > Storage\" to \"Files\", enable \"Animation > Keep Custom Tracks\", then re-import.\n"
+												  "Alternatively, use an import preset that imports animations to separate files."),
+			TTR("Warning: Editing imported animation"));
+}
+
 void AnimationTrackEditor::_bind_methods() {
 
 	ClassDB::bind_method("_animation_changed", &AnimationTrackEditor::_animation_changed);
@@ -4787,6 +4958,8 @@ void AnimationTrackEditor::_bind_methods() {
 	ClassDB::bind_method("_edit_menu_pressed", &AnimationTrackEditor::_edit_menu_pressed);
 	ClassDB::bind_method("_view_group_toggle", &AnimationTrackEditor::_view_group_toggle);
 	ClassDB::bind_method("_selection_changed", &AnimationTrackEditor::_selection_changed);
+	ClassDB::bind_method("_snap_mode_changed", &AnimationTrackEditor::_snap_mode_changed);
+	ClassDB::bind_method("_show_imported_anim_warning", &AnimationTrackEditor::_show_imported_anim_warning);
 
 	ADD_SIGNAL(MethodInfo("timeline_changed", PropertyInfo(Variant::REAL, "position"), PropertyInfo(Variant::BOOL, "drag")));
 	ADD_SIGNAL(MethodInfo("keying_changed"));
@@ -4857,6 +5030,13 @@ AnimationTrackEditor::AnimationTrackEditor() {
 	//timeline_vbox->add_child(memnew(HSeparator));
 	HBoxContainer *bottom_hb = memnew(HBoxContainer);
 	add_child(bottom_hb);
+
+	imported_anim_warning = memnew(Button);
+	imported_anim_warning->hide();
+	imported_anim_warning->set_tooltip(TTR("Warning: Editing imported animation"));
+	imported_anim_warning->connect("pressed", this, "_show_imported_anim_warning");
+	bottom_hb->add_child(imported_anim_warning);
+
 	bottom_hb->add_spacer();
 
 	selected_filter = memnew(ToolButton);
@@ -4875,7 +5055,7 @@ AnimationTrackEditor::AnimationTrackEditor() {
 	bottom_hb->add_child(memnew(VSeparator));
 
 	snap = memnew(ToolButton);
-	snap->set_text(TTR("Snap (s): "));
+	snap->set_text(TTR("Snap:") + " ");
 	bottom_hb->add_child(snap);
 	snap->set_disabled(true);
 	snap->set_toggle_mode(true);
@@ -4883,7 +5063,7 @@ AnimationTrackEditor::AnimationTrackEditor() {
 
 	step = memnew(EditorSpinSlider);
 	step->set_min(0);
-	step->set_max(1000);
+	step->set_max(1000000);
 	step->set_step(0.01);
 	step->set_hide_slider(true);
 	step->set_custom_minimum_size(Size2(100, 0) * EDSCALE);
@@ -4892,6 +5072,13 @@ AnimationTrackEditor::AnimationTrackEditor() {
 	step->connect("value_changed", this, "_update_step");
 	step->set_read_only(true);
 
+	snap_mode = memnew(OptionButton);
+	snap_mode->add_item(TTR("Seconds"));
+	snap_mode->add_item(TTR("FPS"));
+	bottom_hb->add_child(snap_mode);
+	snap_mode->connect("item_selected", this, "_snap_mode_changed");
+	snap_mode->set_disabled(true);
+
 	bottom_hb->add_child(memnew(VSeparator));
 
 	zoom_icon = memnew(TextureRect);
diff --git a/editor/animation_track_editor.h b/editor/animation_track_editor.h
index 29ce4f189e..a69659642c 100644
--- a/editor/animation_track_editor.h
+++ b/editor/animation_track_editor.h
@@ -76,6 +76,7 @@ class AnimationTimelineEdit : public Range {
 	Rect2 hsize_rect;
 
 	bool editing;
+	bool use_fps;
 
 	bool panning_timeline;
 	float panning_timeline_from;
@@ -110,6 +111,9 @@ public:
 
 	void update_values();
 
+	void set_use_fps(bool p_use_fps);
+	bool is_using_fps() const;
+
 	void set_hscroll(HScrollBar *p_hscroll);
 
 	AnimationTimelineEdit();
@@ -303,7 +307,12 @@ class AnimationTrackEditor : public VBoxContainer {
 	EditorSpinSlider *step;
 	TextureRect *zoom_icon;
 	ToolButton *snap;
+	OptionButton *snap_mode;
+
+	Button *imported_anim_warning;
+	void _show_imported_anim_warning() const;
 
+	void _snap_mode_changed(int p_mode);
 	Vector<AnimationTrackEdit *> track_edits;
 	Vector<AnimationTrackEditGroup *> groups;
 
@@ -328,6 +337,8 @@ class AnimationTrackEditor : public VBoxContainer {
 	void _new_track_node_selected(NodePath p_path);
 	void _new_track_property_selected(String p_name);
 
+	void _update_step_spinbox();
+
 	PropertySelector *prop_selector;
 	PropertySelector *method_selector;
 	SceneTreeDialog *pick_track;
@@ -484,6 +495,9 @@ public:
 	void update_keying();
 	bool has_keying() const;
 
+	Dictionary get_state() const;
+	void set_state(const Dictionary &p_state);
+
 	void cleanup();
 
 	void set_anim_pos(float p_pos);
diff --git a/editor/code_editor.cpp b/editor/code_editor.cpp
index 0b06839ecf..ec984e480a 100644
--- a/editor/code_editor.cpp
+++ b/editor/code_editor.cpp
@@ -30,6 +30,7 @@
 
 #include "code_editor.h"
 
+#include "core/os/input.h"
 #include "core/os/keyboard.h"
 #include "core/string_builder.h"
 #include "editor/editor_scale.h"
@@ -432,7 +433,11 @@ void FindReplaceBar::_search_text_changed(const String &p_text) {
 
 void FindReplaceBar::_search_text_entered(const String &p_text) {
 
-	search_next();
+	if (Input::get_singleton()->is_key_pressed(KEY_SHIFT)) {
+		search_prev();
+	} else {
+		search_next();
+	}
 }
 
 void FindReplaceBar::_replace_text_entered(const String &p_text) {
@@ -763,6 +768,7 @@ void CodeTextEditor::update_editor_settings() {
 	text_editor->set_hiding_enabled(EditorSettings::get_singleton()->get("text_editor/line_numbers/code_folding"));
 	text_editor->set_draw_fold_gutter(EditorSettings::get_singleton()->get("text_editor/line_numbers/code_folding"));
 	text_editor->set_wrap_enabled(EditorSettings::get_singleton()->get("text_editor/line_numbers/word_wrap"));
+	text_editor->set_draw_info_gutter(EditorSettings::get_singleton()->get("text_editor/line_numbers/show_info_gutter"));
 	text_editor->cursor_set_block_mode(EditorSettings::get_singleton()->get("text_editor/cursor/block_caret"));
 	text_editor->set_smooth_scroll_enabled(EditorSettings::get_singleton()->get("text_editor/open_scripts/smooth_scrolling"));
 	text_editor->set_v_scroll_speed(EditorSettings::get_singleton()->get("text_editor/open_scripts/v_scroll_speed"));
@@ -1171,21 +1177,69 @@ void CodeTextEditor::goto_line_selection(int p_line, int p_begin, int p_end) {
 	text_editor->select(p_line, p_begin, p_line, p_end);
 }
 
+void CodeTextEditor::set_executing_line(int p_line) {
+	text_editor->set_executing_line(p_line);
+}
+
+void CodeTextEditor::clear_executing_line() {
+	text_editor->clear_executing_line();
+}
+
 Variant CodeTextEditor::get_edit_state() {
 	Dictionary state;
 
 	state["scroll_position"] = text_editor->get_v_scroll();
+	state["h_scroll_position"] = text_editor->get_h_scroll();
 	state["column"] = text_editor->cursor_get_column();
 	state["row"] = text_editor->cursor_get_line();
 
+	state["selection"] = get_text_edit()->is_selection_active();
+	if (get_text_edit()->is_selection_active()) {
+		state["selection_from_line"] = text_editor->get_selection_from_line();
+		state["selection_from_column"] = text_editor->get_selection_from_column();
+		state["selection_to_line"] = text_editor->get_selection_to_line();
+		state["selection_to_column"] = text_editor->get_selection_to_column();
+	}
+
+	state["folded_lines"] = text_editor->get_folded_lines();
+	state["breakpoints"] = text_editor->get_breakpoints_array();
+
+	state["syntax_highlighter"] = TTR("Standard");
+	SyntaxHighlighter *syntax_highlighter = text_editor->_get_syntax_highlighting();
+	if (syntax_highlighter) {
+		state["syntax_highlighter"] = syntax_highlighter->get_name();
+	}
+
 	return state;
 }
 
 void CodeTextEditor::set_edit_state(const Variant &p_state) {
 	Dictionary state = p_state;
-	text_editor->cursor_set_column(state["column"]);
+
+	/* update the row first as it sets the column to 0 */
 	text_editor->cursor_set_line(state["row"]);
+	text_editor->cursor_set_column(state["column"]);
 	text_editor->set_v_scroll(state["scroll_position"]);
+	text_editor->set_h_scroll(state["h_scroll_position"]);
+
+	if (state.has("selection")) {
+		text_editor->select(state["selection_from_line"], state["selection_from_column"], state["selection_to_line"], state["selection_to_column"]);
+	}
+
+	if (state.has("folded_lines")) {
+		Vector<int> folded_lines = state["folded_lines"];
+		for (int i = 0; i < folded_lines.size(); i++) {
+			text_editor->fold_line(folded_lines[i]);
+		}
+	}
+
+	if (state.has("breakpoints")) {
+		Array breakpoints = state["breakpoints"];
+		for (int i = 0; i < breakpoints.size(); i++) {
+			text_editor->set_line_as_breakpoint(breakpoints[i], true);
+		}
+	}
+
 	text_editor->grab_focus();
 }
 
@@ -1243,6 +1297,8 @@ void CodeTextEditor::_on_settings_change() {
 	text_editor->set_callhint_settings(
 			EDITOR_DEF("text_editor/completion/put_callhint_tooltip_below_current_line", true),
 			EDITOR_DEF("text_editor/completion/callhint_tooltip_offset", Vector2()));
+
+	idle->set_wait_time(EDITOR_DEF("text_editor/completion/idle_parse_delay", 2.0));
 }
 
 void CodeTextEditor::_text_changed_idle_timeout() {
@@ -1357,7 +1413,7 @@ CodeTextEditor::CodeTextEditor() {
 	idle = memnew(Timer);
 	add_child(idle);
 	idle->set_one_shot(true);
-	idle->set_wait_time(EDITOR_DEF("text_editor/completion/idle_parse_delay", 2));
+	idle->set_wait_time(EDITOR_DEF("text_editor/completion/idle_parse_delay", 2.0));
 
 	code_complete_timer = memnew(Timer);
 	add_child(code_complete_timer);
diff --git a/editor/code_editor.h b/editor/code_editor.h
index e3dbfe1ce0..b98af377ce 100644
--- a/editor/code_editor.h
+++ b/editor/code_editor.h
@@ -217,6 +217,8 @@ public:
 
 	void goto_line(int p_line);
 	void goto_line_selection(int p_line, int p_begin, int p_end);
+	void set_executing_line(int p_line);
+	void clear_executing_line();
 
 	Variant get_edit_state();
 	void set_edit_state(const Variant &p_state);
diff --git a/editor/collada/collada.cpp b/editor/collada/collada.cpp
index 94e6d4ded0..e9040b9d3e 100644
--- a/editor/collada/collada.cpp
+++ b/editor/collada/collada.cpp
@@ -166,7 +166,8 @@ Transform Collada::Node::compute_transform(Collada &state) const {
 				}
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		xform = xform * xform_step;
@@ -2255,8 +2256,7 @@ void Collada::_merge_skeletons2(VisualScene *p_vscene) {
 
 			Node *node = state.scene_map[name];
 			ERR_CONTINUE(node->type != Node::TYPE_JOINT);
-			if (node->type != Node::TYPE_JOINT)
-				continue;
+
 			NodeSkeleton *sk = NULL;
 
 			while (node && !sk) {
diff --git a/editor/connections_dialog.cpp b/editor/connections_dialog.cpp
index f775a0a14b..a9a96da7b1 100644
--- a/editor/connections_dialog.cpp
+++ b/editor/connections_dialog.cpp
@@ -37,6 +37,25 @@
 #include "scene/gui/label.h"
 #include "scene/gui/popup_menu.h"
 
+static Node *_find_first_script(Node *p_root, Node *p_node) {
+	if (p_node != p_root && p_node->get_owner() != p_root) {
+		return NULL;
+	}
+	if (!p_node->get_script().is_null()) {
+		return p_node;
+	}
+
+	for (int i = 0; i < p_node->get_child_count(); i++) {
+
+		Node *ret = _find_first_script(p_root, p_node->get_child(i));
+		if (ret) {
+			return ret;
+		}
+	}
+
+	return NULL;
+}
+
 class ConnectDialogBinds : public Object {
 
 	GDCLASS(ConnectDialogBinds, Object);
@@ -94,14 +113,14 @@ Signal automatically called by parent dialog.
 void ConnectDialog::ok_pressed() {
 
 	if (dst_method->get_text() == "") {
-		error->set_text(TTR("Method in target Node must be specified!"));
+		error->set_text(TTR("Method in target node must be specified."));
 		error->popup_centered_minsize();
 		return;
 	}
 	Node *target = tree->get_selected();
 	if (target->get_script().is_null()) {
 		if (!target->has_method(dst_method->get_text())) {
-			error->set_text(TTR("Target method not found! Specify a valid method or attach a script to target Node."));
+			error->set_text(TTR("Target method not found. Specify a valid method or attach a script to the target node."));
 			error->popup_centered_minsize();
 			return;
 		}
@@ -122,17 +141,11 @@ void ConnectDialog::_tree_node_selected() {
 
 	Node *current = tree->get_selected();
 
-	if (!current) {
-		make_callback->hide();
+	if (!current)
 		return;
-	}
 
-	if (current->get_script().is_null())
-		make_callback->hide();
-	else
-		make_callback->show();
-
-	dst_path->set_text(source->get_path_to(current));
+	dst_path = source->get_path_to(current);
+	get_ok()->set_disabled(false);
 }
 
 /*
@@ -160,7 +173,9 @@ void ConnectDialog::_add_bind() {
 		case Variant::BASIS: value = Basis(); break;
 		case Variant::TRANSFORM: value = Transform(); break;
 		case Variant::COLOR: value = Color(); break;
-		default: { ERR_FAIL(); } break;
+		default: {
+			ERR_FAIL();
+		} break;
 	}
 
 	ERR_FAIL_COND(value.get_type() == Variant::NIL);
@@ -193,6 +208,7 @@ void ConnectDialog::_notification(int p_what) {
 
 void ConnectDialog::_bind_methods() {
 
+	ClassDB::bind_method("_advanced_pressed", &ConnectDialog::_advanced_pressed);
 	ClassDB::bind_method("_cancel", &ConnectDialog::_cancel_pressed);
 	ClassDB::bind_method("_tree_node_selected", &ConnectDialog::_tree_node_selected);
 	ClassDB::bind_method("_add_bind", &ConnectDialog::_add_bind);
@@ -213,7 +229,7 @@ StringName ConnectDialog::get_signal_name() const {
 
 NodePath ConnectDialog::get_dst_path() const {
 
-	return dst_path->get_text();
+	return dst_path;
 }
 
 void ConnectDialog::set_dst_node(Node *p_node) {
@@ -270,8 +286,13 @@ void ConnectDialog::init(Connection c, bool bEdit) {
 	tree->set_selected(NULL);
 	tree->set_marked(source, true);
 
-	set_dst_node(static_cast<Node *>(c.target));
-	set_dst_method(c.method);
+	if (c.target) {
+		get_ok()->set_disabled(false);
+		set_dst_node(static_cast<Node *>(c.target));
+		set_dst_method(c.method);
+	} else {
+		get_ok()->set_disabled(true);
+	}
 
 	bool bDeferred = (c.flags & CONNECT_DEFERRED) == CONNECT_DEFERRED;
 	bool bOneshot = (c.flags & CONNECT_ONESHOT) == CONNECT_ONESHOT;
@@ -286,6 +307,37 @@ void ConnectDialog::init(Connection c, bool bEdit) {
 	bEditMode = bEdit;
 }
 
+void ConnectDialog::popup_dialog(const String &p_for_signal, bool p_advanced) {
+
+	advanced->set_pressed(p_advanced);
+	from_signal->set_text(p_for_signal);
+	error_label->add_color_override("font_color", get_color("error_color", "Editor"));
+	vbc_right->set_visible(p_advanced);
+
+	if (p_advanced) {
+
+		popup_centered(Size2(900, 500) * EDSCALE);
+		connect_to_label->set_text("Connect to Node:");
+		tree->set_connect_to_script_mode(false);
+		error_label->hide();
+	} else {
+		popup_centered(Size2(700, 500) * EDSCALE);
+		connect_to_label->set_text("Connect to Script:");
+		tree->set_connect_to_script_mode(true);
+
+		if (!_find_first_script(get_tree()->get_edited_scene_root(), get_tree()->get_edited_scene_root())) {
+			error_label->show();
+		} else {
+			error_label->hide();
+		}
+	}
+}
+
+void ConnectDialog::_advanced_pressed() {
+
+	popup_dialog(from_signal->get_text(), advanced->is_pressed());
+}
+
 ConnectDialog::ConnectDialog() {
 
 	VBoxContainer *vbc = memnew(VBoxContainer);
@@ -299,15 +351,27 @@ ConnectDialog::ConnectDialog() {
 	main_hb->add_child(vbc_left);
 	vbc_left->set_h_size_flags(SIZE_EXPAND_FILL);
 
+	from_signal = memnew(LineEdit);
+	from_signal->set_editable(false);
+	vbc_left->add_margin_child(TTR("From Signal:"), from_signal);
+
 	tree = memnew(SceneTreeEditor(false));
 	tree->get_scene_tree()->connect("item_activated", this, "_ok");
 	tree->connect("node_selected", this, "_tree_node_selected");
+	tree->set_connect_to_script_mode(true);
 
-	vbc_left->add_margin_child(TTR("Connect To Node:"), tree, true);
+	Node *mc = vbc_left->add_margin_child(TTR("Connect To Script:"), tree, true);
+	connect_to_label = Object::cast_to<Label>(vbc_left->get_child(mc->get_index() - 1));
 
-	VBoxContainer *vbc_right = memnew(VBoxContainer);
+	error_label = memnew(Label);
+	error_label->set_text(TTR("Scene does not contain any script."));
+	vbc_left->add_child(error_label);
+	error_label->hide();
+
+	vbc_right = memnew(VBoxContainer);
 	main_hb->add_child(vbc_right);
 	vbc_right->set_h_size_flags(SIZE_EXPAND_FILL);
+	vbc_right->hide();
 
 	HBoxContainer *add_bind_hb = memnew(HBoxContainer);
 
@@ -345,16 +409,18 @@ ConnectDialog::ConnectDialog() {
 
 	vbc_right->add_margin_child(TTR("Extra Call Arguments:"), bind_editor, true);
 
-	dst_path = memnew(LineEdit);
-	vbc->add_margin_child(TTR("Path to Node:"), dst_path);
-
 	HBoxContainer *dstm_hb = memnew(HBoxContainer);
-	vbc->add_margin_child("Method In Node:", dstm_hb);
+	vbc_left->add_margin_child("Method to Create:", dstm_hb);
 
 	dst_method = memnew(LineEdit);
 	dst_method->set_h_size_flags(SIZE_EXPAND_FILL);
 	dstm_hb->add_child(dst_method);
 
+	advanced = memnew(CheckBox);
+	dstm_hb->add_child(advanced);
+	advanced->set_text(TTR("Advanced..."));
+	advanced->connect("pressed", this, "_advanced_pressed");
+
 	/*
 	dst_method_list = memnew( MenuButton );
 	dst_method_list->set_text("List...");
@@ -366,26 +432,21 @@ ConnectDialog::ConnectDialog() {
 	dst_method_list->set_end( Point2( 15,39  ) );
 	*/
 
-	make_callback = memnew(CheckButton);
-	make_callback->set_toggle_mode(true);
-	make_callback->set_pressed(EDITOR_DEF("text_editor/tools/create_signal_callbacks", true));
-	make_callback->set_text(TTR("Make Function"));
-	dstm_hb->add_child(make_callback);
-
 	deferred = memnew(CheckButton);
 	deferred->set_text(TTR("Deferred"));
-	dstm_hb->add_child(deferred);
+	vbc_right->add_child(deferred);
 
 	oneshot = memnew(CheckButton);
 	oneshot->set_text(TTR("Oneshot"));
-	dstm_hb->add_child(oneshot);
+	vbc_right->add_child(oneshot);
 
 	set_as_toplevel(true);
 
 	cdbinds = memnew(ConnectDialogBinds);
 
-	error = memnew(ConfirmationDialog);
+	error = memnew(AcceptDialog);
 	add_child(error);
+	error->set_title(TTR("Cannot connect signal"));
 	error->get_ok()->set_text(TTR("Close"));
 	get_ok()->set_text(TTR("Connect"));
 }
@@ -427,7 +488,8 @@ void ConnectionsDock::_make_or_edit_connection() {
 	bool oshot = connect_dialog->get_oneshot();
 	cToMake.flags = CONNECT_PERSIST | (defer ? CONNECT_DEFERRED : 0) | (oshot ? CONNECT_ONESHOT : 0);
 
-	bool add_script_function = connect_dialog->get_make_callback();
+	//conditions to add function, must have a script and must have a method
+	bool add_script_function = !target->get_script().is_null() && !ClassDB::has_method(target->get_class(), cToMake.method);
 	PoolStringArray script_function_args;
 	if (add_script_function) {
 		// pick up args here before "it" is deleted by update_tree
@@ -566,6 +628,7 @@ bool ConnectionsDock::_is_item_signal(TreeItem &item) {
 /*
 Open connection dialog with TreeItem data to CREATE a brand-new connection.
 */
+
 void ConnectionsDock::_open_connection_dialog(TreeItem &item) {
 
 	String signal = item.get_metadata(0).operator Dictionary()["name"];
@@ -588,6 +651,10 @@ void ConnectionsDock::_open_connection_dialog(TreeItem &item) {
 	}
 
 	Node *dst_node = selectedNode->get_owner() ? selectedNode->get_owner() : selectedNode;
+	if (!dst_node || dst_node->get_script().is_null()) {
+		dst_node = _find_first_script(get_tree()->get_edited_scene_root(), get_tree()->get_edited_scene_root());
+	}
+
 	StringName dst_method = "_on_" + midname + "_" + signal;
 
 	Connection c;
@@ -596,9 +663,10 @@ void ConnectionsDock::_open_connection_dialog(TreeItem &item) {
 	c.target = dst_node;
 	c.method = dst_method;
 
+	//connect_dialog->set_title(TTR("Connect Signal: ") + signalname);
+	connect_dialog->popup_dialog(signalname, false);
 	connect_dialog->init(c);
-	connect_dialog->set_title(TTR("Connect Signal: ") + signalname);
-	connect_dialog->popup_centered_ratio();
+	connect_dialog->set_title(TTR("Connect a Signal to a Method"));
 }
 
 /*
@@ -610,9 +678,9 @@ void ConnectionsDock::_open_connection_dialog(Connection cToEdit) {
 	Node *dst = static_cast<Node *>(cToEdit.target);
 
 	if (src && dst) {
-		connect_dialog->init(cToEdit, true);
-		connect_dialog->set_title(TTR("Edit Connection: ") + cToEdit.signal);
+		connect_dialog->set_title(TTR("Edit Connection:") + cToEdit.signal);
 		connect_dialog->popup_centered_ratio();
+		connect_dialog->init(cToEdit, true);
 	}
 }
 
diff --git a/editor/connections_dialog.h b/editor/connections_dialog.h
index 0e7e172ebb..9b35d84426 100644
--- a/editor/connections_dialog.h
+++ b/editor/connections_dialog.h
@@ -53,26 +53,32 @@ class ConnectDialog : public ConfirmationDialog {
 
 	GDCLASS(ConnectDialog, ConfirmationDialog);
 
+	Label *connect_to_label;
+	LineEdit *from_signal;
 	Node *source;
 	StringName signal;
-	LineEdit *dst_path;
 	LineEdit *dst_method;
 	ConnectDialogBinds *cdbinds;
 	bool bEditMode;
+	NodePath dst_path;
+	VBoxContainer *vbc_right;
 
 	SceneTreeEditor *tree;
-	ConfirmationDialog *error;
+	AcceptDialog *error;
 	EditorInspector *bind_editor;
 	OptionButton *type_list;
 	CheckButton *deferred;
 	CheckButton *oneshot;
-	CheckButton *make_callback;
+	CheckBox *advanced;
+
+	Label *error_label;
 
 	void ok_pressed();
 	void _cancel_pressed();
 	void _tree_node_selected();
 	void _add_bind();
 	void _remove_bind();
+	void _advanced_pressed();
 
 protected:
 	void _notification(int p_what);
@@ -87,13 +93,13 @@ public:
 	void set_dst_method(const StringName &p_method);
 	Vector<Variant> get_binds() const;
 
-	bool get_make_callback() { return make_callback->is_visible() && make_callback->is_pressed(); }
 	bool get_deferred() const;
 	bool get_oneshot() const;
 	bool is_editing() const;
 
 	void init(Connection c, bool bEdit = false);
 
+	void popup_dialog(const String &p_for_signal, bool p_advanced);
 	ConnectDialog();
 	~ConnectDialog();
 };
diff --git a/editor/create_dialog.cpp b/editor/create_dialog.cpp
index 364c5126d7..ac42f15f7f 100644
--- a/editor/create_dialog.cpp
+++ b/editor/create_dialog.cpp
@@ -238,6 +238,26 @@ void CreateDialog::add_type(const String &p_type, HashMap<String, TreeItem *> &p
 	p_types[p_type] = item;
 }
 
+bool CreateDialog::_is_class_disabled_by_feature_profile(const StringName &p_class) {
+
+	Ref<EditorFeatureProfile> profile = EditorFeatureProfileManager::get_singleton()->get_current_profile();
+	if (profile.is_null()) {
+		return false;
+	}
+
+	StringName class_name = p_class;
+
+	while (class_name != StringName()) {
+
+		if (profile->is_class_disabled(class_name)) {
+			return true;
+		}
+		class_name = ClassDB::get_parent_class(class_name);
+	}
+
+	return false;
+}
+
 void CreateDialog::_update_search() {
 
 	search_options->clear();
@@ -264,6 +284,10 @@ void CreateDialog::_update_search() {
 	for (List<StringName>::Element *I = type_list.front(); I; I = I->next()) {
 
 		String type = I->get();
+
+		if (_is_class_disabled_by_feature_profile(type)) {
+			continue;
+		}
 		bool cpp_type = ClassDB::class_exists(type);
 
 		if (base_type == "Node" && type.begins_with("Editor"))
@@ -697,6 +721,7 @@ CreateDialog::CreateDialog() {
 	favorites->connect("cell_selected", this, "_favorite_selected");
 	favorites->connect("item_activated", this, "_favorite_activated");
 	favorites->set_drag_forwarding(this);
+	favorites->add_constant_override("draw_guides", 1);
 
 	VBoxContainer *rec_vb = memnew(VBoxContainer);
 	vsc->add_child(rec_vb);
@@ -709,6 +734,7 @@ CreateDialog::CreateDialog() {
 	recent->set_hide_folding(true);
 	recent->connect("cell_selected", this, "_history_selected");
 	recent->connect("item_activated", this, "_history_activated");
+	recent->add_constant_override("draw_guides", 1);
 
 	VBoxContainer *vbc = memnew(VBoxContainer);
 	hsc->add_child(vbc);
diff --git a/editor/create_dialog.h b/editor/create_dialog.h
index 2636e2ddef..d859f7cbe4 100644
--- a/editor/create_dialog.h
+++ b/editor/create_dialog.h
@@ -86,6 +86,8 @@ class CreateDialog : public ConfirmationDialog {
 	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
 	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
 
+	bool _is_class_disabled_by_feature_profile(const StringName &p_class);
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
diff --git a/editor/dependency_editor.cpp b/editor/dependency_editor.cpp
index f559eb6cb2..bde73e9268 100644
--- a/editor/dependency_editor.cpp
+++ b/editor/dependency_editor.cpp
@@ -225,9 +225,9 @@ void DependencyEditor::edit(const String &p_path) {
 	popup_centered_ratio();
 
 	if (EditorNode::get_singleton()->is_scene_open(p_path)) {
-		EditorNode::get_singleton()->show_warning(vformat(TTR("Scene '%s' is currently being edited.\nChanges will not take effect unless reloaded."), p_path.get_file()));
+		EditorNode::get_singleton()->show_warning(vformat(TTR("Scene '%s' is currently being edited.\nChanges will only take effect when reloaded."), p_path.get_file()));
 	} else if (ResourceCache::has(p_path)) {
-		EditorNode::get_singleton()->show_warning(vformat(TTR("Resource '%s' is in use.\nChanges will take effect when reloaded."), p_path.get_file()));
+		EditorNode::get_singleton()->show_warning(vformat(TTR("Resource '%s' is in use.\nChanges will only take effect when reloaded."), p_path.get_file()));
 	}
 }
 
@@ -496,14 +496,32 @@ void DependencyRemoveDialog::ok_pressed() {
 			res->set_path("");
 		}
 
-		// If the file we are deleting is the main scene or default environment, clear its definition.
+		// If the file we are deleting for e.g. the main scene, default environment,
+		// or audio bus layout, we must clear its definition in Project Settings.
+		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("application/config/icon")) {
+			ProjectSettings::get_singleton()->set("application/config/icon", "");
+		}
 		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("application/run/main_scene")) {
 			ProjectSettings::get_singleton()->set("application/run/main_scene", "");
 		}
-
+		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("application/boot_splash/image")) {
+			ProjectSettings::get_singleton()->set("application/boot_splash/image", "");
+		}
 		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("rendering/environment/default_environment")) {
 			ProjectSettings::get_singleton()->set("rendering/environment/default_environment", "");
 		}
+		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("display/mouse_cursor/custom_image")) {
+			ProjectSettings::get_singleton()->set("display/mouse_cursor/custom_image", "");
+		}
+		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("gui/theme/custom")) {
+			ProjectSettings::get_singleton()->set("gui/theme/custom", "");
+		}
+		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("gui/theme/custom_font")) {
+			ProjectSettings::get_singleton()->set("gui/theme/custom_font", "");
+		}
+		if (files_to_delete[i] == ProjectSettings::get_singleton()->get("audio/default_bus_layout")) {
+			ProjectSettings::get_singleton()->set("audio/default_bus_layout", "");
+		}
 
 		String path = OS::get_singleton()->get_resource_dir() + files_to_delete[i].replace_first("res://", "/");
 		print_verbose("Moving to trash: " + path);
diff --git a/editor/doc/doc_data.cpp b/editor/doc/doc_data.cpp
index 8f1d0d9677..c2a492bc9a 100644
--- a/editor/doc/doc_data.cpp
+++ b/editor/doc/doc_data.cpp
@@ -54,7 +54,6 @@ void DocData::merge_from(const DocData &p_data) {
 		c.description = cf.description;
 		c.brief_description = cf.brief_description;
 		c.tutorials = cf.tutorials;
-		c.demos = cf.demos;
 
 		for (int i = 0; i < c.methods.size(); i++) {
 
@@ -837,10 +836,6 @@ Error DocData::_load(Ref<XMLParser> parser) {
 						} else if (parser->get_node_type() == XMLParser::NODE_ELEMENT_END && parser->get_node_name() == "tutorials")
 							break; //end of <tutorials>
 					}
-				} else if (name2 == "demos") {
-					parser->read();
-					if (parser->get_node_type() == XMLParser::NODE_TEXT)
-						c.demos = parser->get_node_data();
 				} else if (name2 == "methods") {
 
 					Error err2 = _parse_methods(parser, c.methods);
@@ -987,8 +982,7 @@ Error DocData::save_classes(const String &p_default_path, const Map<String, Stri
 		FileAccessRef f = FileAccess::open(save_file, FileAccess::WRITE, &err);
 		if (err) {
 			ERR_EXPLAIN("Can't write doc file: " + save_file);
-
-			ERR_FAIL_V(err);
+			ERR_CONTINUE(err);
 		}
 
 		_write_string(f, 0, "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
@@ -1015,9 +1009,6 @@ Error DocData::save_classes(const String &p_default_path, const Map<String, Stri
 			_write_string(f, 2, "<link>" + c.tutorials.get(i).xml_escape() + "</link>");
 		}
 		_write_string(f, 1, "</tutorials>");
-		_write_string(f, 1, "<demos>");
-		_write_string(f, 2, c.demos.strip_edges().xml_escape());
-		_write_string(f, 1, "</demos>");
 		_write_string(f, 1, "<methods>");
 
 		c.methods.sort();
diff --git a/editor/doc/doc_data.h b/editor/doc/doc_data.h
index 8156acd3d0..d3844adb7e 100644
--- a/editor/doc/doc_data.h
+++ b/editor/doc/doc_data.h
@@ -86,7 +86,6 @@ public:
 		String brief_description;
 		String description;
 		Vector<String> tutorials;
-		String demos;
 		Vector<MethodDoc> methods;
 		Vector<MethodDoc> signals;
 		Vector<ConstantDoc> constants;
diff --git a/editor/doc/doc_dump.cpp b/editor/doc/doc_dump.cpp
index 1a68fe5bf2..6ccf0e26ea 100644
--- a/editor/doc/doc_dump.cpp
+++ b/editor/doc/doc_dump.cpp
@@ -199,7 +199,8 @@ void DocDump::dump(const String &p_file) {
 							case Variant::ARRAY:
 							case Variant::_RID:
 
-							default: {}
+							default: {
+							}
 						}
 
 						_write_string(f, 3, "<argument index=\"" + itos(i) + "\" name=\"" + _escape_string(arginfo.name) + "\" type=\"" + type_name + "\" default=\"" + _escape_string(default_arg_text) + "\">");
@@ -227,7 +228,8 @@ void DocDump::dump(const String &p_file) {
 						}
 						break;
 					case PROPERTY_HINT_FILE: hint = "A file:"; break;
-					default: {}
+					default: {
+					}
 						//case PROPERTY_HINT_RESOURCE_TYPE: hint="Type: "+arginfo.hint_string; break;
 				};
 				if (hint != "")
diff --git a/editor/editor_atlas_packer.cpp b/editor/editor_atlas_packer.cpp
new file mode 100644
index 0000000000..4e1d98399a
--- /dev/null
+++ b/editor/editor_atlas_packer.cpp
@@ -0,0 +1,265 @@
+#include "editor_atlas_packer.h"
+
+void EditorAtlasPacker::_plot_triangle(Ref<BitMap> p_bitmap, Vector2i *vertices) {
+
+	int width = p_bitmap->get_size().width;
+	int height = p_bitmap->get_size().height;
+	int x[3];
+	int y[3];
+
+	for (int j = 0; j < 3; j++) {
+
+		x[j] = vertices[j].x;
+		y[j] = vertices[j].y;
+	}
+
+	// sort the points vertically
+	if (y[1] > y[2]) {
+		SWAP(x[1], x[2]);
+		SWAP(y[1], y[2]);
+	}
+	if (y[0] > y[1]) {
+		SWAP(x[0], x[1]);
+		SWAP(y[0], y[1]);
+	}
+	if (y[1] > y[2]) {
+		SWAP(x[1], x[2]);
+		SWAP(y[1], y[2]);
+	}
+
+	double dx_far = double(x[2] - x[0]) / (y[2] - y[0] + 1);
+	double dx_upper = double(x[1] - x[0]) / (y[1] - y[0] + 1);
+	double dx_low = double(x[2] - x[1]) / (y[2] - y[1] + 1);
+	double xf = x[0];
+	double xt = x[0] + dx_upper; // if y[0] == y[1], special case
+	for (int yi = y[0]; yi <= (y[2] > height - 1 ? height - 1 : y[2]); yi++) {
+		if (yi >= 0) {
+			for (int xi = (xf > 0 ? int(xf) : 0); xi <= (xt < width ? xt : width - 1); xi++) {
+				//pixels[int(x + y * width)] = color;
+
+				p_bitmap->set_bit(Point2(xi, yi), true);
+			}
+
+			for (int xi = (xf < width ? int(xf) : width - 1); xi >= (xt > 0 ? xt : 0); xi--) {
+
+				p_bitmap->set_bit(Point2(xi, yi), true);
+			}
+		}
+		xf += dx_far;
+		if (yi < y[1])
+			xt += dx_upper;
+		else
+			xt += dx_low;
+	}
+}
+void EditorAtlasPacker::chart_pack(Vector<Chart> &charts, int &r_width, int &r_height, int p_atlas_max_size, int p_cell_resolution) {
+
+	int divide_by = MIN(64, p_cell_resolution);
+	Vector<PlottedBitmap> bitmaps;
+
+	int max_w = 0;
+
+	for (int i = 0; i < charts.size(); i++) {
+
+		const Chart &chart = charts[i];
+
+		//generate aabb
+
+		Rect2i aabb;
+		int vertex_count = chart.vertices.size();
+		const Vector2 *vertices = chart.vertices.ptr();
+
+		for (int j = 0; j < vertex_count; j++) {
+
+			if (j == 0) {
+				aabb.position = vertices[j];
+			} else {
+				aabb.expand_to(vertices[j]);
+			}
+		}
+
+		Ref<BitMap> src_bitmap;
+		src_bitmap.instance();
+		src_bitmap->create(aabb.size / divide_by);
+
+		int w = src_bitmap->get_size().width;
+		int h = src_bitmap->get_size().height;
+
+		//plot triangles, using divisor
+
+		for (int j = 0; j < chart.faces.size(); j++) {
+
+			Vector2i v[3];
+			for (int k = 0; k < 3; k++) {
+				Vector2 vtx = chart.vertices[chart.faces[j].vertex[k]];
+				vtx -= aabb.position;
+				vtx /= divide_by;
+				v[k] = vtx;
+			}
+
+			_plot_triangle(src_bitmap, v);
+		}
+
+		//src_bitmap->convert_to_image()->save_png("bitmap" + itos(i) + ".png");
+
+		//grow by 1 for each side
+
+		int bmw = src_bitmap->get_size().width + 2;
+		int bmh = src_bitmap->get_size().height + 2;
+
+		int heights_size = -1;
+		bool transpose = false;
+		if (chart.can_transpose && bmh > bmw) {
+			heights_size = bmh;
+			transpose = true;
+		} else {
+			heights_size = bmw;
+		}
+
+		max_w = MAX(max_w, heights_size);
+
+		Vector<int> top_heights;
+		Vector<int> bottom_heights;
+		top_heights.resize(heights_size);
+		bottom_heights.resize(heights_size);
+
+		for (int x = 0; x < heights_size; x++) {
+			top_heights.write[x] = -1;
+			bottom_heights.write[x] = 0x7FFFFFFF;
+		}
+
+		for (int x = 0; x < bmw; x++) {
+			for (int y = 0; y < bmh; y++) {
+				bool found_pixel = false;
+				for (int lx = x - 1; lx < x + 2 && !found_pixel; lx++) {
+					for (int ly = y - 1; ly < y + 2 && !found_pixel; ly++) {
+
+						int px = lx - 1;
+						if (px < 0 || px >= w)
+							continue;
+						int py = ly - 1;
+						if (py < 0 || py >= h)
+							continue;
+
+						if (src_bitmap->get_bit(Vector2(px, py))) {
+							found_pixel = true;
+						}
+					}
+				}
+				if (found_pixel) {
+
+					if (transpose) {
+						if (x > top_heights[y]) {
+							top_heights.write[y] = x;
+						}
+						if (x < bottom_heights[y]) {
+							bottom_heights.write[y] = x;
+						}
+					} else {
+						if (y > top_heights[x]) {
+							top_heights.write[x] = y;
+						}
+						if (y < bottom_heights[x]) {
+							bottom_heights.write[x] = y;
+						}
+					}
+				}
+			}
+		}
+
+		String row;
+		for (int j = 0; j < top_heights.size(); j++) {
+			row += "(" + itos(top_heights[j]) + "-" + itos(bottom_heights[j]) + "),";
+		}
+
+		PlottedBitmap plotted_bitmap;
+		plotted_bitmap.offset = aabb.position;
+		plotted_bitmap.top_heights = top_heights;
+		plotted_bitmap.bottom_heights = bottom_heights;
+		plotted_bitmap.chart_index = i;
+		plotted_bitmap.transposed = transpose;
+		plotted_bitmap.area = bmw * bmh;
+
+		bitmaps.push_back(plotted_bitmap);
+	}
+
+	bitmaps.sort();
+
+	int atlas_max_width = nearest_power_of_2_templated(p_atlas_max_size) / divide_by;
+	int atlas_w = nearest_power_of_2_templated(max_w);
+	int atlas_h;
+	while (true) {
+		atlas_h = 0;
+
+		//do a tetris
+		Vector<int> heights;
+		heights.resize(atlas_w);
+		for (int i = 0; i < atlas_w; i++) {
+			heights.write[i] = 0;
+		}
+
+		int *atlas_ptr = heights.ptrw();
+
+		for (int i = 0; i < bitmaps.size(); i++) {
+
+			int best_height = 0x7FFFFFFF;
+			int best_height_offset = -1;
+			int w = bitmaps[i].top_heights.size();
+
+			const int *top_heights = bitmaps[i].top_heights.ptr();
+			const int *bottom_heights = bitmaps[i].bottom_heights.ptr();
+
+			for (int j = 0; j < atlas_w - w; j++) {
+
+				int height = 0;
+
+				for (int k = 0; k < w; k++) {
+
+					int pixmap_h = bottom_heights[k];
+					if (pixmap_h == -1) {
+						continue; //no pixel here, anything is fine
+					}
+
+					int h = MAX(0, atlas_ptr[j + k] - pixmap_h);
+					if (h > height) {
+						height = h;
+					}
+				}
+
+				if (height < best_height) {
+					best_height = height;
+					best_height_offset = j;
+				}
+			}
+
+			for (int j = 0; j < w; j++) { //add
+				if (top_heights[j] == -1) { //unused
+					continue;
+				}
+				int height = best_height + top_heights[j] + 1;
+				atlas_ptr[j + best_height_offset] = height;
+				atlas_h = MAX(atlas_h, height);
+			}
+
+			// set
+			Vector2 offset = bitmaps[i].offset;
+			if (bitmaps[i].transposed) {
+				SWAP(offset.x, offset.y);
+			}
+
+			Vector2 final_pos = Vector2(best_height_offset * divide_by, best_height * divide_by) + Vector2(divide_by, divide_by) - offset;
+			charts.write[bitmaps[i].chart_index].final_offset = final_pos;
+			charts.write[bitmaps[i].chart_index].transposed = bitmaps[i].transposed;
+		}
+
+		if (atlas_h <= atlas_w * 2 || atlas_w >= atlas_max_width) {
+			break; //ok this one is enough
+		}
+
+		//try again
+		atlas_w *= 2;
+	}
+
+	r_width = atlas_w * divide_by;
+	r_height = atlas_h * divide_by;
+}
diff --git a/editor/editor_atlas_packer.h b/editor/editor_atlas_packer.h
new file mode 100644
index 0000000000..dd9caa340e
--- /dev/null
+++ b/editor/editor_atlas_packer.h
@@ -0,0 +1,45 @@
+#ifndef EDITOR_ATLAS_PACKER_H
+#define EDITOR_ATLAS_PACKER_H
+
+#include "core/math/vector2.h"
+
+#include "core/vector.h"
+#include "scene/resources/bit_map.h"
+
+class EditorAtlasPacker {
+public:
+	struct Chart {
+		Vector<Vector2> vertices;
+		struct Face {
+			int vertex[3];
+		};
+		Vector<Face> faces;
+		bool can_transpose;
+
+		Vector2 final_offset;
+		bool transposed;
+	};
+
+private:
+	struct PlottedBitmap {
+		int chart_index;
+		Vector2i offset;
+		int area;
+		Vector<int> top_heights;
+		Vector<int> bottom_heights;
+		bool transposed;
+
+		Vector2 final_pos;
+
+		bool operator<(const PlottedBitmap &p_bm) const {
+			return area > p_bm.area;
+		}
+	};
+
+	static void _plot_triangle(Ref<BitMap> p_bitmap, Vector2i *vertices);
+
+public:
+	static void chart_pack(Vector<Chart> &charts, int &r_width, int &r_height, int p_atlas_max_size = 2048, int p_cell_resolution = 4);
+};
+
+#endif // EDITOR_ATLAS_PACKER_H
diff --git a/editor/editor_audio_buses.cpp b/editor/editor_audio_buses.cpp
index 29e9cd01c5..2beb0153f4 100644
--- a/editor/editor_audio_buses.cpp
+++ b/editor/editor_audio_buses.cpp
@@ -34,6 +34,7 @@
 #include "core/os/keyboard.h"
 #include "editor_node.h"
 #include "filesystem_dock.h"
+#include "scene/resources/font.h"
 #include "servers/audio_server.h"
 
 void EditorAudioBus::_update_visible_channels() {
@@ -71,7 +72,6 @@ void EditorAudioBus::_notification(int p_what) {
 			channel[i].vu_r->set_progress_texture(get_icon("BusVuFull", "EditorIcons"));
 			channel[i].prev_active = true;
 		}
-		scale->set_texture(get_icon("BusVuDb", "EditorIcons"));
 
 		disabled_vu = get_icon("BusVuFrozen", "EditorIcons");
 
@@ -167,7 +167,6 @@ void EditorAudioBus::_notification(int p_what) {
 			channel[i].vu_r->set_progress_texture(get_icon("BusVuFull", "EditorIcons"));
 			channel[i].prev_active = true;
 		}
-		scale->set_texture(get_icon("BusVuDb", "EditorIcons"));
 
 		disabled_vu = get_icon("BusVuFrozen", "EditorIcons");
 
@@ -211,7 +210,8 @@ void EditorAudioBus::update_bus() {
 
 	int index = get_index();
 
-	slider->set_value(AudioServer::get_singleton()->get_bus_volume_db(index));
+	float db_value = AudioServer::get_singleton()->get_bus_volume_db(index);
+	slider->set_value(_scaled_db_to_normalized_volume(db_value));
 	track_name->set_text(AudioServer::get_singleton()->get_bus_name(index));
 	if (is_master)
 		track_name->set_editable(false);
@@ -300,13 +300,15 @@ void EditorAudioBus::_name_changed(const String &p_new_name) {
 	track_name->release_focus();
 }
 
-void EditorAudioBus::_volume_db_changed(float p_db) {
+void EditorAudioBus::_volume_changed(float p_normalized) {
 
 	if (updating_bus)
 		return;
 
 	updating_bus = true;
 
+	float p_db = this->_normalized_volume_to_scaled_db(p_normalized);
+
 	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
 	ur->create_action(TTR("Change Audio Bus Volume"), UndoRedo::MERGE_ENDS);
 	ur->add_do_method(AudioServer::get_singleton(), "set_bus_volume_db", get_index(), p_db);
@@ -317,6 +319,69 @@ void EditorAudioBus::_volume_db_changed(float p_db) {
 
 	updating_bus = false;
 }
+
+float EditorAudioBus::_normalized_volume_to_scaled_db(float normalized) {
+	/* There are three different formulas for the conversion from normalized
+     * values to relative decibal values.
+     * One formula is an exponential graph which intends to counteract
+     * the logorithmic nature of human hearing. This is an approximation
+     * of the behaviour of a 'logarithmic potentiometer' found on most
+     * musical instruments and also emulated in popular software.
+     * The other two equations are hand-tuned linear tapers that intend to
+     * try to ease the exponential equation in areas where it makes sense.*/
+
+	if (normalized > 0.6f) {
+		return 22.22f * normalized - 16.2f;
+	} else if (normalized < 0.05f) {
+		return 830.72 * normalized - 80.0f;
+	} else {
+		return 45.0f * Math::pow(normalized - 1.0, 3);
+	}
+}
+
+float EditorAudioBus::_scaled_db_to_normalized_volume(float db) {
+	/* Inversion of equations found in _normalized_volume_to_scaled_db.
+     * IMPORTANT: If one function changes, the other much change to reflect it. */
+	if (db > -2.88) {
+		return (db + 16.2f) / 22.22f;
+	} else if (db < -38.602f) {
+		return (db + 80.00f) / 830.72f;
+	} else {
+		if (db < 0.0) {
+			/* To acommodate for NaN on negative numbers for root, we will mirror the
+             * results of the postive db range in order to get the desired numerical
+             * value on the negative side. */
+			float positive_x = Math::pow(Math::abs(db) / 45.0f, 1.0f / 3.0f) + 1.0f;
+			Vector2 translation = Vector2(1.0f, 0.0f) - Vector2(positive_x, Math::abs(db));
+			Vector2 reflected_position = Vector2(1.0, 0.0f) + translation;
+			return reflected_position.x;
+		} else {
+			return Math::pow(db / 45.0f, 1.0f / 3.0f) + 1.0f;
+		}
+	}
+}
+
+void EditorAudioBus::_show_value(float slider_value) {
+	String text = vformat("%10.1f dB", _normalized_volume_to_scaled_db(slider_value));
+
+	audio_value_preview_label->set_text(text);
+	Vector2 slider_size = slider->get_size();
+	Vector2 slider_position = slider->get_global_position();
+	float left_padding = 5.0f;
+	float vert_padding = 10.0f;
+	Vector2 box_position = Vector2(slider_size.x + left_padding, (slider_size.y - vert_padding) * (1.0f - slider_value) - vert_padding);
+	audio_value_preview_box->set_position(slider_position + box_position);
+	audio_value_preview_box->set_size(audio_value_preview_label->get_size());
+	if (slider->has_focus() && !audio_value_preview_box->is_visible()) {
+		audio_value_preview_box->show();
+	}
+	preview_timer->start();
+}
+
+void EditorAudioBus::_hide_value_preview() {
+	audio_value_preview_box->hide();
+}
+
 void EditorAudioBus::_solo_toggled() {
 
 	updating_bus = true;
@@ -653,7 +718,9 @@ void EditorAudioBus::_bind_methods() {
 	ClassDB::bind_method("update_bus", &EditorAudioBus::update_bus);
 	ClassDB::bind_method("update_send", &EditorAudioBus::update_send);
 	ClassDB::bind_method("_name_changed", &EditorAudioBus::_name_changed);
-	ClassDB::bind_method("_volume_db_changed", &EditorAudioBus::_volume_db_changed);
+	ClassDB::bind_method("_volume_changed", &EditorAudioBus::_volume_changed);
+	ClassDB::bind_method("_show_value", &EditorAudioBus::_show_value);
+	ClassDB::bind_method("_hide_value_preview", &EditorAudioBus::_hide_value_preview);
 	ClassDB::bind_method("_solo_toggled", &EditorAudioBus::_solo_toggled);
 	ClassDB::bind_method("_mute_toggled", &EditorAudioBus::_mute_toggled);
 	ClassDB::bind_method("_bypass_toggled", &EditorAudioBus::_bypass_toggled);
@@ -689,7 +756,7 @@ EditorAudioBus::EditorAudioBus(EditorAudioBuses *p_buses, bool p_is_master) {
 	add_child(vb);
 
 	set_v_size_flags(SIZE_EXPAND_FILL);
-	set_custom_minimum_size(Size2(100, 0) * EDSCALE);
+	set_custom_minimum_size(Size2(110, 0) * EDSCALE);
 
 	track_name = memnew(LineEdit);
 	track_name->connect("text_entered", this, "_name_changed");
@@ -738,11 +805,42 @@ EditorAudioBus::EditorAudioBus(EditorAudioBuses *p_buses, bool p_is_master) {
 	HBoxContainer *hb = memnew(HBoxContainer);
 	vb->add_child(hb);
 	slider = memnew(VSlider);
-	slider->set_min(-80);
-	slider->set_max(24);
-	slider->set_step(0.1);
-
-	slider->connect("value_changed", this, "_volume_db_changed");
+	slider->set_min(0.0);
+	slider->set_max(1.0);
+	slider->set_step(0.0001);
+	slider->set_clip_contents(false);
+
+	audio_value_preview_box = memnew(Panel);
+	{
+		HBoxContainer *audioprev_hbc = memnew(HBoxContainer);
+		audioprev_hbc->set_v_size_flags(SIZE_EXPAND_FILL);
+		audioprev_hbc->set_h_size_flags(SIZE_EXPAND_FILL);
+		audioprev_hbc->set_mouse_filter(MOUSE_FILTER_PASS);
+		audio_value_preview_box->add_child(audioprev_hbc);
+
+		audio_value_preview_label = memnew(Label);
+		audio_value_preview_label->set_v_size_flags(SIZE_EXPAND_FILL);
+		audio_value_preview_label->set_h_size_flags(SIZE_EXPAND_FILL);
+		audio_value_preview_label->set_mouse_filter(MOUSE_FILTER_PASS);
+
+		audioprev_hbc->add_child(audio_value_preview_label);
+	}
+	slider->add_child(audio_value_preview_box);
+	audio_value_preview_box->set_as_toplevel(true);
+	Ref<StyleBoxFlat> panel_style = memnew(StyleBoxFlat);
+	panel_style->set_bg_color(Color(0.0f, 0.0f, 0.0f, 0.8f));
+	audio_value_preview_box->add_style_override("panel", panel_style);
+	audio_value_preview_box->set_mouse_filter(MOUSE_FILTER_PASS);
+	audio_value_preview_box->hide();
+
+	preview_timer = memnew(Timer);
+	preview_timer->set_wait_time(0.8f);
+	preview_timer->set_one_shot(true);
+	add_child(preview_timer);
+
+	slider->connect("value_changed", this, "_volume_changed");
+	slider->connect("value_changed", this, "_show_value");
+	preview_timer->connect("timeout", this, "_hide_value_preview");
 	hb->add_child(slider);
 
 	cc = 0;
@@ -765,7 +863,12 @@ EditorAudioBus::EditorAudioBus(EditorAudioBuses *p_buses, bool p_is_master) {
 		channel[i].peak_r = 0.0f;
 	}
 
-	scale = memnew(TextureRect);
+	scale = memnew(EditorAudioMeterNotches);
+
+	for (float db = 6.0f; db >= -80.0f; db -= 6.0f) {
+		bool renderNotch = (db >= -6.0f || db == -24.0f || db == -72.0f);
+		scale->add_notch(_scaled_db_to_normalized_volume(db), db, renderNotch);
+	}
 	hb->add_child(scale);
 
 	effects = memnew(Tree);
@@ -1077,14 +1180,16 @@ void EditorAudioBuses::_load_layout() {
 
 void EditorAudioBuses::_load_default_layout() {
 
-	Ref<AudioBusLayout> state = ResourceLoader::load("res://default_bus_layout.tres");
+	String layout_path = ProjectSettings::get_singleton()->get("audio/default_bus_layout");
+
+	Ref<AudioBusLayout> state = ResourceLoader::load(layout_path);
 	if (state.is_null()) {
-		EditorNode::get_singleton()->show_warning(TTR("There is no 'res://default_bus_layout.tres' file."));
+		EditorNode::get_singleton()->show_warning(vformat(TTR("There is no '%s' file."), layout_path));
 		return;
 	}
 
-	edited_path = "res://default_bus_layout.tres";
-	file->set_text(edited_path.get_file());
+	edited_path = layout_path;
+	file->set_text(layout_path.get_file());
 	AudioServer::get_singleton()->set_bus_layout(state);
 	_update_buses();
 	EditorNode::get_singleton()->get_undo_redo()->clear_history();
@@ -1213,7 +1318,7 @@ EditorAudioBuses::EditorAudioBuses() {
 
 	set_v_size_flags(SIZE_EXPAND_FILL);
 
-	edited_path = "res://default_bus_layout.tres";
+	edited_path = ProjectSettings::get_singleton()->get("audio/default_bus_layout");
 
 	file_dialog = memnew(EditorFileDialog);
 	List<String> ext;
@@ -1226,6 +1331,7 @@ EditorAudioBuses::EditorAudioBuses() {
 
 	set_process(true);
 }
+
 void EditorAudioBuses::open_layout(const String &p_path) {
 
 	EditorNode::get_singleton()->make_bottom_panel_item_visible(this);
@@ -1270,3 +1376,50 @@ AudioBusesEditorPlugin::AudioBusesEditorPlugin(EditorAudioBuses *p_node) {
 
 AudioBusesEditorPlugin::~AudioBusesEditorPlugin() {
 }
+
+void EditorAudioMeterNotches::add_notch(float normalized_offset, float db_value, bool render_value) {
+	notches.push_back(AudioNotch(normalized_offset, db_value, render_value));
+}
+
+void EditorAudioMeterNotches::_bind_methods() {
+	ClassDB::bind_method("add_notch", &EditorAudioMeterNotches::add_notch);
+	ClassDB::bind_method("_draw_audio_notches", &EditorAudioMeterNotches::_draw_audio_notches);
+}
+
+void EditorAudioMeterNotches::_notification(int p_what) {
+	if (p_what == NOTIFICATION_DRAW) {
+		notch_color = EditorSettings::get_singleton()->is_dark_theme() ? Color(1.0f, 1.0f, 1.0f, 0.8f) : Color(0.0f, 0.0f, 0.0f, 0.8f);
+		_draw_audio_notches();
+	}
+}
+
+void EditorAudioMeterNotches::_draw_audio_notches() {
+	Ref<Font> font = get_font("font", "Label");
+	float font_height = font->get_height();
+
+	for (uint8_t i = 0; i < notches.size(); i++) {
+		AudioNotch n = notches[i];
+		draw_line(Vector2(0.0f, (1.0f - n.relative_position) * (get_size().y - btm_padding - top_padding) + top_padding),
+				Vector2(line_length, (1.0f - n.relative_position) * (get_size().y - btm_padding - top_padding) + top_padding),
+				notch_color,
+				1.0f);
+
+		if (n.render_db_value) {
+			draw_string(font,
+					Vector2(line_length + label_space,
+							(1.0f - n.relative_position) * (get_size().y - btm_padding - top_padding) + (font_height / 4) + top_padding),
+					String("{0}dB").format(varray(Math::abs(n.db_value))),
+					notch_color);
+		}
+	}
+}
+
+EditorAudioMeterNotches::EditorAudioMeterNotches() :
+		line_length(5.0f),
+		label_space(2.0f),
+		btm_padding(9.0f),
+		top_padding(5.0f) {
+	this->set_v_size_flags(SIZE_EXPAND_FILL);
+	this->set_h_size_flags(SIZE_EXPAND_FILL);
+	notch_color = EditorSettings::get_singleton()->is_dark_theme() ? Color(1.0f, 1.0f, 1.0f, 0.8f) : Color(0.0f, 0.0f, 0.0f, 0.8f);
+}
diff --git a/editor/editor_audio_buses.h b/editor/editor_audio_buses.h
index 37ff9b28dc..50f2101fd8 100644
--- a/editor/editor_audio_buses.h
+++ b/editor/editor_audio_buses.h
@@ -35,6 +35,7 @@
 #include "editor_plugin.h"
 #include "scene/gui/box_container.h"
 #include "scene/gui/button.h"
+#include "scene/gui/control.h"
 #include "scene/gui/line_edit.h"
 #include "scene/gui/menu_button.h"
 #include "scene/gui/option_button.h"
@@ -71,13 +72,17 @@ class EditorAudioBus : public PanelContainer {
 		TextureProgress *vu_r;
 	} channel[CHANNELS_MAX];
 
-	TextureRect *scale;
+	class EditorAudioMeterNotches *scale;
 	OptionButton *send;
 
 	PopupMenu *effect_options;
 	PopupMenu *bus_popup;
 	PopupMenu *delete_effect_popup;
 
+	Panel *audio_value_preview_box;
+	Label *audio_value_preview_label;
+	Timer *preview_timer;
+
 	Button *solo;
 	Button *mute;
 	Button *bypass;
@@ -93,7 +98,11 @@ class EditorAudioBus : public PanelContainer {
 
 	void _name_changed(const String &p_new_name);
 	void _name_focus_exit() { _name_changed(track_name->get_text()); }
-	void _volume_db_changed(float p_db);
+	void _volume_changed(float p_normalized);
+	float _normalized_volume_to_scaled_db(float normalized);
+	float _scaled_db_to_normalized_volume(float db);
+	void _show_value(float slider_value);
+	void _hide_value_preview();
 	void _solo_toggled();
 	void _mute_toggled();
 	void _bypass_toggled();
@@ -200,6 +209,50 @@ public:
 	EditorAudioBuses();
 };
 
+class EditorAudioMeterNotches : public Control {
+	GDCLASS(EditorAudioMeterNotches, Control);
+
+private:
+	struct AudioNotch {
+		float relative_position;
+		float db_value;
+		bool render_db_value;
+
+		_FORCE_INLINE_ AudioNotch(float r_pos, float db_v, bool rndr_val) {
+			relative_position = r_pos;
+			db_value = db_v;
+			render_db_value = rndr_val;
+		}
+
+		_FORCE_INLINE_ AudioNotch(const AudioNotch &n) {
+			relative_position = n.relative_position;
+			db_value = n.db_value;
+			render_db_value = n.render_db_value;
+		}
+
+		_FORCE_INLINE_ AudioNotch() {}
+	};
+
+	List<AudioNotch> notches;
+
+public:
+	float line_length;
+	float label_space;
+	float btm_padding;
+	float top_padding;
+	Color notch_color;
+
+	void add_notch(float normalized_offset, float db_value, bool render_value = false);
+
+private:
+	static void _bind_methods();
+	void _notification(int p_what);
+	void _draw_audio_notches();
+
+public:
+	EditorAudioMeterNotches();
+};
+
 class AudioBusesEditorPlugin : public EditorPlugin {
 
 	GDCLASS(AudioBusesEditorPlugin, EditorPlugin);
diff --git a/editor/editor_autoload_settings.cpp b/editor/editor_autoload_settings.cpp
index 2f2b0d2cba..e0c90808a0 100644
--- a/editor/editor_autoload_settings.cpp
+++ b/editor/editor_autoload_settings.cpp
@@ -638,12 +638,12 @@ void EditorAutoloadSettings::autoload_add(const String &p_name, const String &p_
 
 	String path = p_path;
 	if (!FileAccess::exists(path)) {
-		EditorNode::get_singleton()->show_warning(TTR("Invalid Path.") + "\n" + TTR("File does not exist."));
+		EditorNode::get_singleton()->show_warning(TTR("Invalid path.") + "\n" + TTR("File does not exist."));
 		return;
 	}
 
 	if (!path.begins_with("res://")) {
-		EditorNode::get_singleton()->show_warning(TTR("Invalid Path.") + "\n" + TTR("Not in resource path."));
+		EditorNode::get_singleton()->show_warning(TTR("Invalid path.") + "\n" + TTR("Not in resource path."));
 		return;
 	}
 
diff --git a/editor/editor_builders.py b/editor/editor_builders.py
index 9e9fe752b4..19c5e0b924 100644
--- a/editor/editor_builders.py
+++ b/editor/editor_builders.py
@@ -6,7 +6,7 @@ All such functions are invoked in a subprocess on Windows to prevent build flaki
 import os
 import os.path
 from platform_methods import subprocess_main
-from compat import encode_utf8, byte_to_str, open_utf8, escape_string
+from compat import encode_utf8, byte_to_str, open_utf8
 
 
 def make_doc_header(target, source, env):
diff --git a/editor/editor_dir_dialog.cpp b/editor/editor_dir_dialog.cpp
index e8cf730796..e04bca2a9e 100644
--- a/editor/editor_dir_dialog.cpp
+++ b/editor/editor_dir_dialog.cpp
@@ -133,7 +133,7 @@ void EditorDirDialog::_make_dir() {
 
 	TreeItem *ti = tree->get_selected();
 	if (!ti) {
-		mkdirerr->set_text(TTR("Please select a base directory first"));
+		mkdirerr->set_text(TTR("Please select a base directory first."));
 		mkdirerr->popup_centered_minsize();
 		return;
 	}
diff --git a/editor/editor_feature_profile.cpp b/editor/editor_feature_profile.cpp
new file mode 100644
index 0000000000..714df44e25
--- /dev/null
+++ b/editor/editor_feature_profile.cpp
@@ -0,0 +1,889 @@
+#include "editor_feature_profile.h"
+#include "core/io/json.h"
+#include "core/os/dir_access.h"
+#include "editor/editor_settings.h"
+#include "editor_node.h"
+#include "editor_scale.h"
+
+const char *EditorFeatureProfile::feature_names[FEATURE_MAX] = {
+	TTRC("3D Editor"),
+	TTRC("Script Editor"),
+	TTRC("Asset Library"),
+	TTRC("Scene Tree Editing"),
+	TTRC("Import Dock"),
+	TTRC("Node Dock"),
+	TTRC("Filesystem Dock")
+};
+
+const char *EditorFeatureProfile::feature_identifiers[FEATURE_MAX] = {
+	"3d",
+	"script",
+	"asset_lib",
+	"scene_tree",
+	"import_dock",
+	"node_dock",
+	"filesystem_dock"
+};
+
+void EditorFeatureProfile::set_disable_class(const StringName &p_class, bool p_disabled) {
+	if (p_disabled) {
+		disabled_classes.insert(p_class);
+	} else {
+		disabled_classes.erase(p_class);
+	}
+}
+
+bool EditorFeatureProfile::is_class_disabled(const StringName &p_class) const {
+	return disabled_classes.has(p_class);
+}
+
+void EditorFeatureProfile::set_disable_class_editor(const StringName &p_class, bool p_disabled) {
+	if (p_disabled) {
+		disabled_editors.insert(p_class);
+	} else {
+		disabled_editors.erase(p_class);
+	}
+}
+
+bool EditorFeatureProfile::is_class_editor_disabled(const StringName &p_class) const {
+	return disabled_editors.has(p_class);
+}
+
+void EditorFeatureProfile::set_disable_class_property(const StringName &p_class, const StringName &p_property, bool p_disabled) {
+
+	if (p_disabled) {
+		if (!disabled_properties.has(p_class)) {
+			disabled_properties[p_class] = Set<StringName>();
+		}
+
+		disabled_properties[p_class].insert(p_property);
+	} else {
+		ERR_FAIL_COND(!disabled_properties.has(p_class));
+		disabled_properties[p_class].erase(p_property);
+		if (disabled_properties[p_class].empty()) {
+			disabled_properties.erase(p_class);
+		}
+	}
+}
+bool EditorFeatureProfile::is_class_property_disabled(const StringName &p_class, const StringName &p_property) const {
+
+	if (!disabled_properties.has(p_class)) {
+		return false;
+	}
+
+	if (!disabled_properties[p_class].has(p_property)) {
+		return false;
+	}
+
+	return true;
+}
+
+bool EditorFeatureProfile::has_class_properties_disabled(const StringName &p_class) const {
+	return disabled_properties.has(p_class);
+}
+
+void EditorFeatureProfile::set_disable_feature(Feature p_feature, bool p_disable) {
+
+	ERR_FAIL_INDEX(p_feature, FEATURE_MAX);
+	features_disabled[p_feature] = p_disable;
+}
+bool EditorFeatureProfile::is_feature_disabled(Feature p_feature) const {
+	ERR_FAIL_INDEX_V(p_feature, FEATURE_MAX, false);
+	return features_disabled[p_feature];
+}
+
+String EditorFeatureProfile::get_feature_name(Feature p_feature) {
+	ERR_FAIL_INDEX_V(p_feature, FEATURE_MAX, String());
+	return feature_names[p_feature];
+}
+
+Error EditorFeatureProfile::save_to_file(const String &p_path) {
+
+	Dictionary json;
+	json["type"] = "feature_profile";
+	Array dis_classes;
+	for (Set<StringName>::Element *E = disabled_classes.front(); E; E = E->next()) {
+		dis_classes.push_back(String(E->get()));
+	}
+	dis_classes.sort();
+	json["disabled_classes"] = dis_classes;
+
+	Array dis_editors;
+	for (Set<StringName>::Element *E = disabled_editors.front(); E; E = E->next()) {
+		dis_editors.push_back(String(E->get()));
+	}
+	dis_editors.sort();
+	json["disabled_editors"] = dis_editors;
+
+	Array dis_props;
+
+	for (Map<StringName, Set<StringName> >::Element *E = disabled_properties.front(); E; E = E->next()) {
+		for (Set<StringName>::Element *F = E->get().front(); F; F = F->next()) {
+			dis_props.push_back(String(E->key()) + ":" + String(F->get()));
+		}
+	}
+
+	json["disabled_properties"] = dis_props;
+
+	Array dis_features;
+	for (int i = 0; i < FEATURE_MAX; i++) {
+		if (features_disabled[i]) {
+			dis_features.push_back(feature_identifiers[i]);
+		}
+	}
+
+	json["disabled_features"] = dis_features;
+
+	FileAccessRef f = FileAccess::open(p_path, FileAccess::WRITE);
+	ERR_FAIL_COND_V(!f, ERR_CANT_OPEN);
+
+	String text = JSON::print(json, "\t");
+	f->store_string(text);
+	f->close();
+	return OK;
+}
+
+Error EditorFeatureProfile::load_from_file(const String &p_path) {
+
+	Error err;
+	String text = FileAccess::get_file_as_string(p_path, &err);
+	if (err != OK) {
+		return err;
+	}
+
+	String err_str;
+	int err_line;
+	Variant v;
+	err = JSON::parse(text, v, err_str, err_line);
+	if (err != OK) {
+		ERR_PRINTS("Error parsing '" + p_path + "' on line " + itos(err_line) + ": " + err_str);
+		return ERR_PARSE_ERROR;
+	}
+
+	Dictionary json = v;
+
+	if (!json.has("type") || String(json["type"]) != "feature_profile") {
+		ERR_PRINTS("Error parsing '" + p_path + "', it's not a feature profile.");
+		return ERR_PARSE_ERROR;
+	}
+
+	disabled_classes.clear();
+
+	if (json.has("disabled_classes")) {
+		Array disabled_classes_arr = json["disabled_classes"];
+		for (int i = 0; i < disabled_classes_arr.size(); i++) {
+			disabled_classes.insert(disabled_classes_arr[i]);
+		}
+	}
+
+	disabled_editors.clear();
+
+	if (json.has("disabled_editors")) {
+		Array disabled_editors_arr = json["disabled_editors"];
+		for (int i = 0; i < disabled_editors_arr.size(); i++) {
+			disabled_editors.insert(disabled_editors_arr[i]);
+		}
+	}
+
+	disabled_properties.clear();
+
+	if (json.has("disabled_properties")) {
+		Array disabled_properties_arr = json["disabled_properties"];
+		for (int i = 0; i < disabled_properties_arr.size(); i++) {
+			String s = disabled_properties_arr[i];
+			set_disable_class_property(s.get_slice(":", 0), s.get_slice(":", 1), true);
+		}
+	}
+
+	if (json.has("disabled_features")) {
+
+		Array disabled_features_arr = json["disabled_features"];
+		for (int i = 0; i < FEATURE_MAX; i++) {
+			bool found = false;
+			String f = feature_identifiers[i];
+			for (int j = 0; j < disabled_features_arr.size(); j++) {
+				String fd = disabled_features_arr[j];
+				if (fd == f) {
+					found = true;
+					break;
+				}
+			}
+
+			features_disabled[i] = found;
+		}
+	}
+
+	return OK;
+}
+
+void EditorFeatureProfile::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_disable_class", "class_name", "disable"), &EditorFeatureProfile::set_disable_class);
+	ClassDB::bind_method(D_METHOD("is_class_disabled", "class_name"), &EditorFeatureProfile::is_class_disabled);
+
+	ClassDB::bind_method(D_METHOD("set_disable_class_editor", "class_name", "disable"), &EditorFeatureProfile::set_disable_class_editor);
+	ClassDB::bind_method(D_METHOD("is_class_editor_disabled", "class_name"), &EditorFeatureProfile::is_class_editor_disabled);
+
+	ClassDB::bind_method(D_METHOD("set_disable_class_property", "class_name", "property"), &EditorFeatureProfile::set_disable_class_property);
+	ClassDB::bind_method(D_METHOD("is_class_property_disabled", "class_name"), &EditorFeatureProfile::is_class_property_disabled);
+
+	ClassDB::bind_method(D_METHOD("set_disable_feature", "feature", "disable"), &EditorFeatureProfile::set_disable_feature);
+	ClassDB::bind_method(D_METHOD("is_feature_disabled", "feature"), &EditorFeatureProfile::is_feature_disabled);
+
+	ClassDB::bind_method(D_METHOD("get_feature_name", "feature"), &EditorFeatureProfile::_get_feature_name);
+
+	ClassDB::bind_method(D_METHOD("save_to_file", "path"), &EditorFeatureProfile::save_to_file);
+	ClassDB::bind_method(D_METHOD("load_from_file", "path"), &EditorFeatureProfile::load_from_file);
+
+	BIND_ENUM_CONSTANT(FEATURE_3D);
+	BIND_ENUM_CONSTANT(FEATURE_SCRIPT);
+	BIND_ENUM_CONSTANT(FEATURE_ASSET_LIB);
+	BIND_ENUM_CONSTANT(FEATURE_SCENE_TREE);
+	BIND_ENUM_CONSTANT(FEATURE_IMPORT_DOCK);
+	BIND_ENUM_CONSTANT(FEATURE_NODE_DOCK);
+	BIND_ENUM_CONSTANT(FEATURE_FILESYSTEM_DOCK);
+	BIND_ENUM_CONSTANT(FEATURE_MAX);
+}
+
+EditorFeatureProfile::EditorFeatureProfile() {
+
+	for (int i = 0; i < FEATURE_MAX; i++) {
+		features_disabled[i] = false;
+	}
+}
+
+//////////////////////////
+
+void EditorFeatureProfileManager::_notification(int p_what) {
+	if (p_what == NOTIFICATION_READY) {
+
+		current_profile = EDITOR_GET("_default_feature_profile");
+		if (current_profile != String()) {
+			current.instance();
+			Error err = current->load_from_file(EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(current_profile + ".profile"));
+			if (err != OK) {
+				ERR_PRINTS("Error loading default feature profile: " + current_profile);
+				current_profile = String();
+				current.unref();
+			}
+		}
+		_update_profile_list(current_profile);
+	}
+}
+
+String EditorFeatureProfileManager::_get_selected_profile() {
+	int idx = profile_list->get_selected();
+	if (idx < 0) {
+		return String();
+	}
+
+	return profile_list->get_item_metadata(idx);
+}
+
+void EditorFeatureProfileManager::_update_profile_list(const String &p_select_profile) {
+
+	String selected_profile;
+	if (p_select_profile == String()) { //default, keep
+		if (profile_list->get_selected() >= 0) {
+			selected_profile = profile_list->get_item_metadata(profile_list->get_selected());
+			if (!FileAccess::exists(EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(selected_profile + ".profile"))) {
+				selected_profile = String(); //does not exist
+			}
+		}
+	} else {
+		selected_profile = p_select_profile;
+	}
+
+	Vector<String> profiles;
+	DirAccessRef d = DirAccess::open(EditorSettings::get_singleton()->get_feature_profiles_dir());
+	ERR_FAIL_COND(!d);
+	d->list_dir_begin();
+	while (true) {
+		String f = d->get_next();
+		if (f == String()) {
+			break;
+		}
+
+		if (!d->current_is_dir()) {
+			int last_pos = f.find_last(".profile");
+			if (last_pos != -1) {
+				profiles.push_back(f.substr(0, last_pos));
+			}
+		}
+	}
+
+	profiles.sort();
+
+	profile_list->clear();
+
+	for (int i = 0; i < profiles.size(); i++) {
+		String name = profiles[i];
+
+		if (i == 0 && selected_profile == String()) {
+			selected_profile = name;
+		}
+
+		if (name == current_profile) {
+			name += " (current)";
+		}
+		profile_list->add_item(name);
+		int index = profile_list->get_item_count() - 1;
+		profile_list->set_item_metadata(index, profiles[i]);
+		if (profiles[i] == selected_profile) {
+			profile_list->select(index);
+		}
+	}
+
+	profile_actions[PROFILE_CLEAR]->set_disabled(current_profile == String());
+	profile_actions[PROFILE_ERASE]->set_disabled(selected_profile == String());
+	profile_actions[PROFILE_EXPORT]->set_disabled(selected_profile == String());
+	profile_actions[PROFILE_SET]->set_disabled(selected_profile == String());
+
+	current_profile_name->set_text(current_profile);
+
+	_update_selected_profile();
+}
+
+void EditorFeatureProfileManager::_profile_action(int p_action) {
+
+	switch (p_action) {
+		case PROFILE_CLEAR: {
+			EditorSettings::get_singleton()->set("_default_feature_profile", "");
+			EditorSettings::get_singleton()->save();
+			current_profile = "";
+			current.unref();
+			_update_profile_list();
+		} break;
+		case PROFILE_SET: {
+
+			String selected = _get_selected_profile();
+			ERR_FAIL_COND(selected == String());
+			if (selected == current_profile) {
+				return; //nothing to do here
+			}
+			EditorSettings::get_singleton()->set("_default_feature_profile", selected);
+			EditorSettings::get_singleton()->save();
+			current_profile = selected;
+			current = edited;
+
+			_update_profile_list();
+
+		} break;
+		case PROFILE_IMPORT: {
+
+			import_profiles->popup_centered_ratio();
+		} break;
+		case PROFILE_EXPORT: {
+
+			export_profile->popup_centered_ratio();
+			export_profile->set_current_file(_get_selected_profile() + ".profile");
+		} break;
+		case PROFILE_NEW: {
+
+			new_profile_dialog->popup_centered_minsize();
+			new_profile_name->clear();
+			new_profile_name->grab_focus();
+		} break;
+		case PROFILE_ERASE: {
+			String selected = _get_selected_profile();
+			ERR_FAIL_COND(selected == String());
+
+			erase_profile_dialog->set_text(vformat(TTR("Erase profile '%s'? (no undo)"), selected));
+			erase_profile_dialog->popup_centered_minsize();
+		} break;
+	}
+}
+
+void EditorFeatureProfileManager::_erase_selected_profile() {
+
+	String selected = _get_selected_profile();
+	ERR_FAIL_COND(selected == String());
+	DirAccessRef da = DirAccess::open(EditorSettings::get_singleton()->get_feature_profiles_dir());
+	ERR_FAIL_COND(!da);
+	da->remove(selected + ".profile");
+	if (selected == current_profile) {
+		_profile_action(PROFILE_CLEAR);
+	} else {
+		_update_profile_list();
+	}
+}
+
+void EditorFeatureProfileManager::_create_new_profile() {
+	String name = new_profile_name->get_text().strip_edges();
+	if (!name.is_valid_filename() || name.find(".") != -1) {
+		EditorNode::get_singleton()->show_warning(TTR("Profile must be a valid filename and must not contain '.'"));
+		return;
+	}
+	String file = EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(name + ".profile");
+	if (FileAccess::exists(file)) {
+		EditorNode::get_singleton()->show_warning(TTR("Profile with this name already exists."));
+		return;
+	}
+
+	Ref<EditorFeatureProfile> new_profile;
+	new_profile.instance();
+	new_profile->save_to_file(file);
+
+	_update_profile_list(name);
+}
+
+void EditorFeatureProfileManager::_profile_selected(int p_what) {
+
+	_update_selected_profile();
+}
+
+void EditorFeatureProfileManager::_fill_classes_from(TreeItem *p_parent, const String &p_class, const String &p_selected) {
+
+	TreeItem *class_item = class_list->create_item(p_parent);
+	class_item->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+	class_item->set_icon(0, EditorNode::get_singleton()->get_class_icon(p_class, "Node"));
+	String text = p_class;
+
+	bool disabled = edited->is_class_disabled(p_class);
+	bool disabled_editor = edited->is_class_editor_disabled(p_class);
+	bool disabled_properties = edited->has_class_properties_disabled(p_class);
+	if (disabled) {
+		class_item->set_custom_color(0, get_color("disabled_font_color", "Editor"));
+	} else if (disabled_editor && disabled_properties) {
+		text += " " + TTR("(Editor Disabled, Properties Disabled)");
+	} else if (disabled_properties) {
+		text += " " + TTR("(Properties Disabled)");
+	} else if (disabled_editor) {
+		text += " " + TTR("(Editor Disabled)");
+	}
+	class_item->set_text(0, text);
+	class_item->set_editable(0, true);
+	class_item->set_selectable(0, true);
+	class_item->set_metadata(0, p_class);
+
+	if (p_class == p_selected) {
+		class_item->select(0);
+	}
+	if (disabled) {
+		//class disabled, do nothing else (do not show further)
+		return;
+	}
+
+	class_item->set_checked(0, true); // if its not disabled, its checked
+
+	List<StringName> child_classes;
+	ClassDB::get_direct_inheriters_from_class(p_class, &child_classes);
+	child_classes.sort_custom<StringName::AlphCompare>();
+
+	for (List<StringName>::Element *E = child_classes.front(); E; E = E->next()) {
+		String name = E->get();
+		if (name.begins_with("Editor") || ClassDB::get_api_type(name) != ClassDB::API_CORE) {
+			continue;
+		}
+		_fill_classes_from(class_item, name, p_selected);
+	}
+}
+
+void EditorFeatureProfileManager::_class_list_item_selected() {
+
+	if (updating_features)
+		return;
+
+	property_list->clear();
+
+	TreeItem *item = class_list->get_selected();
+	if (!item) {
+		return;
+	}
+
+	Variant md = item->get_metadata(0);
+	if (md.get_type() != Variant::STRING) {
+		return;
+	}
+
+	String class_name = md;
+
+	if (edited->is_class_disabled(class_name)) {
+		return;
+	}
+
+	updating_features = true;
+	TreeItem *root = property_list->create_item();
+	TreeItem *options = property_list->create_item(root);
+	options->set_text(0, TTR("Class Options:"));
+
+	{
+		TreeItem *option = property_list->create_item(options);
+		option->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+		option->set_editable(0, true);
+		option->set_selectable(0, true);
+		option->set_checked(0, !edited->is_class_editor_disabled(class_name));
+		option->set_text(0, TTR("Enable Contextual Editor"));
+		option->set_metadata(0, CLASS_OPTION_DISABLE_EDITOR);
+	}
+
+	TreeItem *properties = property_list->create_item(root);
+	properties->set_text(0, TTR("Enabled Properties:"));
+
+	List<PropertyInfo> props;
+
+	ClassDB::get_property_list(class_name, &props, true);
+
+	for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
+
+		String name = E->get().name;
+		if (!(E->get().usage & PROPERTY_USAGE_EDITOR))
+			continue;
+		TreeItem *property = property_list->create_item(properties);
+		property->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+		property->set_editable(0, true);
+		property->set_selectable(0, true);
+		property->set_checked(0, !edited->is_class_property_disabled(class_name, name));
+		property->set_text(0, name.capitalize());
+		property->set_metadata(0, name);
+		String icon_type = Variant::get_type_name(E->get().type);
+		property->set_icon(0, EditorNode::get_singleton()->get_class_icon(icon_type));
+	}
+
+	updating_features = false;
+}
+
+void EditorFeatureProfileManager::_class_list_item_edited() {
+
+	if (updating_features)
+		return;
+
+	TreeItem *item = class_list->get_edited();
+	if (!item) {
+		return;
+	}
+
+	bool checked = item->is_checked(0);
+
+	Variant md = item->get_metadata(0);
+	if (md.get_type() == Variant::STRING) {
+		String class_selected = md;
+		edited->set_disable_class(class_selected, !checked);
+		_save_and_update();
+		_update_selected_profile();
+	} else if (md.get_type() == Variant::INT) {
+		int feature_selected = md;
+		edited->set_disable_feature(EditorFeatureProfile::Feature(feature_selected), !checked);
+		_save_and_update();
+	}
+}
+
+void EditorFeatureProfileManager::_property_item_edited() {
+	if (updating_features)
+		return;
+
+	TreeItem *class_item = class_list->get_selected();
+	if (!class_item) {
+		return;
+	}
+
+	Variant md = class_item->get_metadata(0);
+	if (md.get_type() != Variant::STRING) {
+		return;
+	}
+
+	String class_name = md;
+
+	TreeItem *item = property_list->get_edited();
+	if (!item) {
+		return;
+	}
+	bool checked = item->is_checked(0);
+
+	md = item->get_metadata(0);
+	if (md.get_type() == Variant::STRING) {
+		String property_selected = md;
+		edited->set_disable_class_property(class_name, property_selected, !checked);
+		_save_and_update();
+		_update_selected_profile();
+	} else if (md.get_type() == Variant::INT) {
+		int feature_selected = md;
+		switch (feature_selected) {
+			case CLASS_OPTION_DISABLE_EDITOR: {
+				edited->set_disable_class_editor(class_name, !checked);
+				_save_and_update();
+				_update_selected_profile();
+			} break;
+		}
+	}
+}
+
+void EditorFeatureProfileManager::_update_selected_profile() {
+
+	String class_selected;
+	int feature_selected = -1;
+
+	if (class_list->get_selected()) {
+		Variant md = class_list->get_selected()->get_metadata(0);
+		if (md.get_type() == Variant::STRING) {
+			class_selected = md;
+		} else if (md.get_type() == Variant::INT) {
+			feature_selected = md;
+		}
+	}
+
+	class_list->clear();
+
+	String profile = _get_selected_profile();
+	if (profile == String()) { //nothing selected, nothing edited
+		property_list->clear();
+		edited.unref();
+		return;
+	}
+
+	if (profile == current_profile) {
+		edited = current; //reuse current profile (which is what editor uses)
+		ERR_FAIL_COND(current.is_null()); //nothing selected, current should never be null
+	} else {
+		//reload edited, if different from current
+		edited.instance();
+		Error err = edited->load_from_file(EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(profile + ".profile"));
+		ERR_FAIL_COND(err != OK);
+	}
+
+	updating_features = true;
+
+	TreeItem *root = class_list->create_item();
+
+	TreeItem *features = class_list->create_item(root);
+	features->set_text(0, TTR("Enabled Features:"));
+	for (int i = 0; i < EditorFeatureProfile::FEATURE_MAX; i++) {
+
+		TreeItem *feature = class_list->create_item(features);
+		feature->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+		feature->set_text(0, TTRGET(EditorFeatureProfile::get_feature_name(EditorFeatureProfile::Feature(i))));
+		feature->set_selectable(0, true);
+		feature->set_editable(0, true);
+		feature->set_metadata(0, i);
+		if (!edited->is_feature_disabled(EditorFeatureProfile::Feature(i))) {
+			feature->set_checked(0, true);
+		}
+
+		if (i == feature_selected) {
+			feature->select(0);
+		}
+	}
+
+	TreeItem *classes = class_list->create_item(root);
+	classes->set_text(0, TTR("Enabled Classes:"));
+
+	_fill_classes_from(classes, "Node", class_selected);
+	_fill_classes_from(classes, "Resource", class_selected);
+
+	updating_features = false;
+
+	_class_list_item_selected();
+}
+
+void EditorFeatureProfileManager::_import_profiles(const Vector<String> &p_paths) {
+
+	//test it first
+	for (int i = 0; i < p_paths.size(); i++) {
+		Ref<EditorFeatureProfile> profile;
+		profile.instance();
+		Error err = profile->load_from_file(p_paths[i]);
+		String basefile = p_paths[i].get_file();
+		if (err != OK) {
+			EditorNode::get_singleton()->show_warning(vformat(TTR("File '%s' format is invalid, import aborted."), basefile));
+			return;
+		}
+
+		String dst_file = EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(basefile);
+
+		if (FileAccess::exists(dst_file)) {
+			EditorNode::get_singleton()->show_warning(vformat(TTR("Profile '%s' already exists. Remote it first before importing, import aborted."), basefile.get_basename()));
+			return;
+		}
+	}
+
+	//do it second
+	for (int i = 0; i < p_paths.size(); i++) {
+		Ref<EditorFeatureProfile> profile;
+		profile.instance();
+		Error err = profile->load_from_file(p_paths[i]);
+		ERR_CONTINUE(err != OK);
+		String basefile = p_paths[i].get_file();
+		String dst_file = EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(basefile);
+		profile->save_to_file(dst_file);
+	}
+
+	_update_profile_list();
+}
+
+void EditorFeatureProfileManager::_export_profile(const String &p_path) {
+
+	ERR_FAIL_COND(edited.is_null());
+	Error err = edited->save_to_file(p_path);
+	if (err != OK) {
+		EditorNode::get_singleton()->show_warning(vformat(TTR("Error saving profile to path: '%s'."), p_path));
+	}
+}
+
+void EditorFeatureProfileManager::_save_and_update() {
+
+	String edited_path = _get_selected_profile();
+	ERR_FAIL_COND(edited_path == String());
+	ERR_FAIL_COND(edited.is_null());
+
+	edited->save_to_file(EditorSettings::get_singleton()->get_feature_profiles_dir().plus_file(edited_path + ".profile"));
+
+	if (edited == current) {
+		update_timer->start();
+	}
+}
+
+void EditorFeatureProfileManager::_emit_current_profile_changed() {
+
+	emit_signal("current_feature_profile_changed");
+}
+
+void EditorFeatureProfileManager::notify_changed() {
+	_emit_current_profile_changed();
+}
+
+Ref<EditorFeatureProfile> EditorFeatureProfileManager::get_current_profile() {
+	return current;
+}
+
+EditorFeatureProfileManager *EditorFeatureProfileManager::singleton = NULL;
+
+void EditorFeatureProfileManager::_bind_methods() {
+
+	ClassDB::bind_method("_update_selected_profile", &EditorFeatureProfileManager::_update_selected_profile);
+	ClassDB::bind_method("_profile_action", &EditorFeatureProfileManager::_profile_action);
+	ClassDB::bind_method("_create_new_profile", &EditorFeatureProfileManager::_create_new_profile);
+	ClassDB::bind_method("_profile_selected", &EditorFeatureProfileManager::_profile_selected);
+	ClassDB::bind_method("_erase_selected_profile", &EditorFeatureProfileManager::_erase_selected_profile);
+	ClassDB::bind_method("_import_profiles", &EditorFeatureProfileManager::_import_profiles);
+	ClassDB::bind_method("_export_profile", &EditorFeatureProfileManager::_export_profile);
+	ClassDB::bind_method("_class_list_item_selected", &EditorFeatureProfileManager::_class_list_item_selected);
+	ClassDB::bind_method("_class_list_item_edited", &EditorFeatureProfileManager::_class_list_item_edited);
+	ClassDB::bind_method("_property_item_edited", &EditorFeatureProfileManager::_property_item_edited);
+	ClassDB::bind_method("_emit_current_profile_changed", &EditorFeatureProfileManager::_emit_current_profile_changed);
+
+	ADD_SIGNAL(MethodInfo("current_feature_profile_changed"));
+}
+
+EditorFeatureProfileManager::EditorFeatureProfileManager() {
+
+	VBoxContainer *main_vbc = memnew(VBoxContainer);
+	add_child(main_vbc);
+
+	HBoxContainer *name_hbc = memnew(HBoxContainer);
+	current_profile_name = memnew(LineEdit);
+	name_hbc->add_child(current_profile_name);
+	current_profile_name->set_editable(false);
+	current_profile_name->set_h_size_flags(SIZE_EXPAND_FILL);
+	profile_actions[PROFILE_CLEAR] = memnew(Button(TTR("Unset")));
+	name_hbc->add_child(profile_actions[PROFILE_CLEAR]);
+	profile_actions[PROFILE_CLEAR]->set_disabled(true);
+	profile_actions[PROFILE_CLEAR]->connect("pressed", this, "_profile_action", varray(PROFILE_CLEAR));
+
+	main_vbc->add_margin_child(TTR("Current Profile"), name_hbc);
+
+	HBoxContainer *profiles_hbc = memnew(HBoxContainer);
+	profile_list = memnew(OptionButton);
+	profile_list->set_h_size_flags(SIZE_EXPAND_FILL);
+	profiles_hbc->add_child(profile_list);
+	profile_list->connect("item_selected", this, "_profile_selected");
+
+	profile_actions[PROFILE_SET] = memnew(Button(TTR("Make Current")));
+	profiles_hbc->add_child(profile_actions[PROFILE_SET]);
+	profile_actions[PROFILE_SET]->set_disabled(true);
+	profile_actions[PROFILE_SET]->connect("pressed", this, "_profile_action", varray(PROFILE_SET));
+
+	profile_actions[PROFILE_ERASE] = memnew(Button(TTR("Remove")));
+	profiles_hbc->add_child(profile_actions[PROFILE_ERASE]);
+	profile_actions[PROFILE_ERASE]->set_disabled(true);
+	profile_actions[PROFILE_ERASE]->connect("pressed", this, "_profile_action", varray(PROFILE_ERASE));
+
+	profiles_hbc->add_child(memnew(VSeparator));
+
+	profile_actions[PROFILE_NEW] = memnew(Button(TTR("New")));
+	profiles_hbc->add_child(profile_actions[PROFILE_NEW]);
+	profile_actions[PROFILE_NEW]->connect("pressed", this, "_profile_action", varray(PROFILE_NEW));
+
+	profiles_hbc->add_child(memnew(VSeparator));
+
+	profile_actions[PROFILE_IMPORT] = memnew(Button(TTR("Import")));
+	profiles_hbc->add_child(profile_actions[PROFILE_IMPORT]);
+	profile_actions[PROFILE_IMPORT]->connect("pressed", this, "_profile_action", varray(PROFILE_IMPORT));
+
+	profile_actions[PROFILE_EXPORT] = memnew(Button(TTR("Export")));
+	profiles_hbc->add_child(profile_actions[PROFILE_EXPORT]);
+	profile_actions[PROFILE_EXPORT]->set_disabled(true);
+	profile_actions[PROFILE_EXPORT]->connect("pressed", this, "_profile_action", varray(PROFILE_EXPORT));
+
+	main_vbc->add_margin_child(TTR("Available Profiles"), profiles_hbc);
+
+	h_split = memnew(HSplitContainer);
+	h_split->set_v_size_flags(SIZE_EXPAND_FILL);
+	main_vbc->add_child(h_split);
+
+	VBoxContainer *class_list_vbc = memnew(VBoxContainer);
+	h_split->add_child(class_list_vbc);
+	class_list_vbc->set_h_size_flags(SIZE_EXPAND_FILL);
+
+	class_list = memnew(Tree);
+	class_list_vbc->add_margin_child(TTR("Enabled Classes"), class_list, true);
+	class_list->set_hide_root(true);
+	class_list->set_hide_folding(true);
+	class_list->set_edit_checkbox_cell_only_when_checkbox_is_pressed(true);
+	class_list->connect("cell_selected", this, "_class_list_item_selected");
+	class_list->connect("item_edited", this, "_class_list_item_edited", varray(), CONNECT_DEFERRED);
+
+	VBoxContainer *property_list_vbc = memnew(VBoxContainer);
+	h_split->add_child(property_list_vbc);
+	property_list_vbc->set_h_size_flags(SIZE_EXPAND_FILL);
+
+	property_list = memnew(Tree);
+	property_list_vbc->add_margin_child(TTR("Class Options"), property_list, true);
+	property_list->set_hide_root(true);
+	property_list->set_hide_folding(true);
+	property_list->set_edit_checkbox_cell_only_when_checkbox_is_pressed(true);
+	property_list->connect("item_edited", this, "_property_item_edited", varray(), CONNECT_DEFERRED);
+
+	new_profile_dialog = memnew(ConfirmationDialog);
+	new_profile_dialog->set_title(TTR("New profile name:"));
+	new_profile_name = memnew(LineEdit);
+	new_profile_dialog->add_child(new_profile_name);
+	new_profile_name->set_custom_minimum_size(Size2(300 * EDSCALE, 1));
+	add_child(new_profile_dialog);
+	new_profile_dialog->connect("confirmed", this, "_create_new_profile");
+	new_profile_dialog->register_text_enter(new_profile_name);
+	new_profile_dialog->get_ok()->set_text(TTR("Create"));
+
+	erase_profile_dialog = memnew(ConfirmationDialog);
+	add_child(erase_profile_dialog);
+	erase_profile_dialog->set_title(TTR("Erase Profile"));
+	erase_profile_dialog->connect("confirmed", this, "_erase_selected_profile");
+
+	import_profiles = memnew(EditorFileDialog);
+	add_child(import_profiles);
+	import_profiles->set_mode(EditorFileDialog::MODE_OPEN_FILES);
+	import_profiles->add_filter("*.profile; Godot Feature Profile");
+	import_profiles->connect("files_selected", this, "_import_profiles");
+	import_profiles->set_title(TTR("Import Profile(s)"));
+	import_profiles->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
+
+	export_profile = memnew(EditorFileDialog);
+	add_child(export_profile);
+	export_profile->set_mode(EditorFileDialog::MODE_SAVE_FILE);
+	export_profile->add_filter("*.profile; Godot Feature Profile");
+	export_profile->connect("file_selected", this, "_export_profile");
+	export_profile->set_title(TTR("Export Profile"));
+	export_profile->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
+
+	set_title(TTR("Manage Editor Feature Profiles"));
+	EDITOR_DEF("_default_feature_profile", "");
+
+	update_timer = memnew(Timer);
+	update_timer->set_wait_time(1); //wait a second before updating editor
+	add_child(update_timer);
+	update_timer->connect("timeout", this, "_emit_current_profile_changed");
+	update_timer->set_one_shot(true);
+
+	updating_features = false;
+
+	singleton = this;
+}
diff --git a/editor/editor_feature_profile.h b/editor/editor_feature_profile.h
new file mode 100644
index 0000000000..b7c2ebc1b2
--- /dev/null
+++ b/editor/editor_feature_profile.h
@@ -0,0 +1,142 @@
+#ifndef EDITOR_FEATURE_PROFILE_H
+#define EDITOR_FEATURE_PROFILE_H
+
+#include "core/os/file_access.h"
+#include "core/reference.h"
+#include "editor/editor_file_dialog.h"
+#include "scene/gui/dialogs.h"
+#include "scene/gui/option_button.h"
+#include "scene/gui/separator.h"
+#include "scene/gui/split_container.h"
+#include "scene/gui/tree.h"
+
+class EditorFeatureProfile : public Reference {
+	GDCLASS(EditorFeatureProfile, Reference);
+
+public:
+	enum Feature {
+		FEATURE_3D,
+		FEATURE_SCRIPT,
+		FEATURE_ASSET_LIB,
+		FEATURE_SCENE_TREE,
+		FEATURE_IMPORT_DOCK,
+		FEATURE_NODE_DOCK,
+		FEATURE_FILESYSTEM_DOCK,
+		FEATURE_MAX
+	};
+
+private:
+	Set<StringName> disabled_classes;
+	Set<StringName> disabled_editors;
+	Map<StringName, Set<StringName> > disabled_properties;
+
+	bool features_disabled[FEATURE_MAX];
+	static const char *feature_names[FEATURE_MAX];
+	static const char *feature_identifiers[FEATURE_MAX];
+
+	String _get_feature_name(Feature p_feature) { return get_feature_name(p_feature); }
+
+protected:
+	static void _bind_methods();
+
+public:
+	void set_disable_class(const StringName &p_class, bool p_disabled);
+	bool is_class_disabled(const StringName &p_class) const;
+
+	void set_disable_class_editor(const StringName &p_class, bool p_disabled);
+	bool is_class_editor_disabled(const StringName &p_class) const;
+
+	void set_disable_class_property(const StringName &p_class, const StringName &p_property, bool p_disabled);
+	bool is_class_property_disabled(const StringName &p_class, const StringName &p_property) const;
+	bool has_class_properties_disabled(const StringName &p_class) const;
+
+	void set_disable_feature(Feature p_feature, bool p_disable);
+	bool is_feature_disabled(Feature p_feature) const;
+
+	Error save_to_file(const String &p_path);
+	Error load_from_file(const String &p_path);
+
+	static String get_feature_name(Feature p_feature);
+
+	EditorFeatureProfile();
+};
+
+VARIANT_ENUM_CAST(EditorFeatureProfile::Feature)
+
+class EditorFeatureProfileManager : public AcceptDialog {
+
+	GDCLASS(EditorFeatureProfileManager, AcceptDialog);
+
+	enum Action {
+		PROFILE_CLEAR,
+		PROFILE_SET,
+		PROFILE_IMPORT,
+		PROFILE_EXPORT,
+		PROFILE_NEW,
+		PROFILE_ERASE,
+		PROFILE_MAX
+	};
+
+	enum ClassOptions {
+		CLASS_OPTION_DISABLE_EDITOR
+	};
+
+	ConfirmationDialog *erase_profile_dialog;
+	ConfirmationDialog *new_profile_dialog;
+	LineEdit *new_profile_name;
+
+	LineEdit *current_profile_name;
+	OptionButton *profile_list;
+	Button *profile_actions[PROFILE_MAX];
+
+	HSplitContainer *h_split;
+
+	Tree *class_list;
+	Tree *property_list;
+
+	EditorFileDialog *import_profiles;
+	EditorFileDialog *export_profile;
+
+	void _profile_action(int p_action);
+	void _profile_selected(int p_what);
+
+	String current_profile;
+	void _update_profile_list(const String &p_select_profile = String());
+	void _update_selected_profile();
+	void _fill_classes_from(TreeItem *p_parent, const String &p_class, const String &p_selected);
+
+	Ref<EditorFeatureProfile> current;
+	Ref<EditorFeatureProfile> edited;
+
+	void _erase_selected_profile();
+	void _create_new_profile();
+	String _get_selected_profile();
+
+	void _import_profiles(const Vector<String> &p_paths);
+	void _export_profile(const String &p_path);
+
+	bool updating_features;
+
+	void _class_list_item_selected();
+	void _class_list_item_edited();
+	void _property_item_edited();
+	void _save_and_update();
+
+	Timer *update_timer;
+	void _emit_current_profile_changed();
+
+	static EditorFeatureProfileManager *singleton;
+
+protected:
+	static void _bind_methods();
+	void _notification(int p_what);
+
+public:
+	Ref<EditorFeatureProfile> get_current_profile();
+	void notify_changed();
+
+	static EditorFeatureProfileManager *get_singleton() { return singleton; }
+	EditorFeatureProfileManager();
+};
+
+#endif // EDITOR_FEATURE_PROFILE_H
diff --git a/editor/editor_file_dialog.cpp b/editor/editor_file_dialog.cpp
index 4c9f58f312..724b821267 100644
--- a/editor/editor_file_dialog.cpp
+++ b/editor/editor_file_dialog.cpp
@@ -233,8 +233,8 @@ void EditorFileDialog::_file_entered(const String &p_file) {
 void EditorFileDialog::_save_confirm_pressed() {
 	String f = dir_access->get_current_dir().plus_file(file->get_text());
 	_save_to_recent();
-	emit_signal("file_selected", f);
 	hide();
+	emit_signal("file_selected", f);
 }
 
 void EditorFileDialog::_post_popup() {
@@ -343,8 +343,8 @@ void EditorFileDialog::_action_pressed() {
 
 		if (files.size()) {
 			_save_to_recent();
-			emit_signal("files_selected", files);
 			hide();
+			emit_signal("files_selected", files);
 		}
 
 		return;
@@ -354,8 +354,8 @@ void EditorFileDialog::_action_pressed() {
 
 	if ((mode == MODE_OPEN_ANY || mode == MODE_OPEN_FILE) && dir_access->file_exists(f)) {
 		_save_to_recent();
-		emit_signal("file_selected", f);
 		hide();
+		emit_signal("file_selected", f);
 	} else if (mode == MODE_OPEN_ANY || mode == MODE_OPEN_DIR) {
 
 		String path = dir_access->get_current_dir();
@@ -374,8 +374,8 @@ void EditorFileDialog::_action_pressed() {
 		}
 
 		_save_to_recent();
-		emit_signal("dir_selected", path);
 		hide();
+		emit_signal("dir_selected", path);
 	}
 
 	if (mode == MODE_SAVE_FILE) {
@@ -441,8 +441,8 @@ void EditorFileDialog::_action_pressed() {
 		} else {
 
 			_save_to_recent();
-			emit_signal("file_selected", f);
 			hide();
+			emit_signal("file_selected", f);
 		}
 	}
 }
@@ -1499,7 +1499,7 @@ EditorFileDialog::EditorFileDialog() {
 	dir_next = memnew(ToolButton);
 	dir_next->set_tooltip(TTR("Next Folder"));
 	dir_up = memnew(ToolButton);
-	dir_up->set_tooltip(TTR("Go to parent folder"));
+	dir_up->set_tooltip(TTR("Go to parent folder."));
 
 	pathhb->add_child(dir_prev);
 	pathhb->add_child(dir_next);
diff --git a/editor/editor_file_system.cpp b/editor/editor_file_system.cpp
index 3d9d5e26be..abd3bea951 100644
--- a/editor/editor_file_system.cpp
+++ b/editor/editor_file_system.cpp
@@ -43,7 +43,7 @@
 
 EditorFileSystem *EditorFileSystem::singleton = NULL;
 //the name is the version, to keep compatibility with different versions of Godot
-#define CACHE_FILE_NAME "filesystem_cache5"
+#define CACHE_FILE_NAME "filesystem_cache6"
 
 void EditorFileSystemDirectory::sort_files() {
 
@@ -241,7 +241,7 @@ void EditorFileSystem::_scan_filesystem() {
 
 			} else {
 				Vector<String> split = l.split("::");
-				ERR_CONTINUE(split.size() != 7);
+				ERR_CONTINUE(split.size() != 8);
 				String name = split[0];
 				String file;
 
@@ -253,11 +253,12 @@ void EditorFileSystem::_scan_filesystem() {
 				fc.modification_time = split[2].to_int64();
 				fc.import_modification_time = split[3].to_int64();
 				fc.import_valid = split[4].to_int64() != 0;
-				fc.script_class_name = split[5].get_slice("<>", 0);
-				fc.script_class_extends = split[5].get_slice("<>", 1);
-				fc.script_class_icon_path = split[5].get_slice("<>", 2);
+				fc.import_group_file = split[5].strip_edges();
+				fc.script_class_name = split[6].get_slice("<>", 0);
+				fc.script_class_extends = split[6].get_slice("<>", 1);
+				fc.script_class_icon_path = split[6].get_slice("<>", 2);
 
-				String deps = split[6].strip_edges();
+				String deps = split[7].strip_edges();
 				if (deps.length()) {
 					Vector<String> dp = deps.split("<>");
 					for (int i = 0; i < dp.size(); i++) {
@@ -318,6 +319,9 @@ void EditorFileSystem::_scan_filesystem() {
 }
 
 void EditorFileSystem::_save_filesystem_cache() {
+
+	group_file_cache.clear();
+
 	String fscache = EditorSettings::get_singleton()->get_project_settings_dir().plus_file(CACHE_FILE_NAME);
 
 	FileAccess *f = FileAccess::open(fscache, FileAccess::WRITE);
@@ -771,6 +775,7 @@ void EditorFileSystem::_scan_new_dir(EditorFileSystemDirectory *p_dir, DirAccess
 
 				fi->import_valid = fc->import_valid;
 				fi->script_class_name = fc->script_class_name;
+				fi->import_group_file = fc->import_group_file;
 				fi->script_class_extends = fc->script_class_extends;
 				fi->script_class_icon_path = fc->script_class_icon_path;
 
@@ -784,6 +789,7 @@ void EditorFileSystem::_scan_new_dir(EditorFileSystemDirectory *p_dir, DirAccess
 
 				if (fc->type == String()) {
 					fi->type = ResourceLoader::get_resource_type(path);
+					fi->import_group_file = ResourceLoader::get_import_group_file(path);
 					//there is also the chance that file type changed due to reimport, must probably check this somehow here (or kind of note it for next time in another file?)
 					//note: I think this should not happen any longer..
 				}
@@ -791,6 +797,7 @@ void EditorFileSystem::_scan_new_dir(EditorFileSystemDirectory *p_dir, DirAccess
 			} else {
 
 				fi->type = ResourceFormatImporter::get_singleton()->get_resource_type(path);
+				fi->import_group_file = ResourceFormatImporter::get_singleton()->get_import_group_file(path);
 				fi->script_class_name = _get_global_script_class(fi->type, path, &fi->script_class_extends, &fi->script_class_icon_path);
 				fi->modified_time = 0;
 				fi->import_modified_time = 0;
@@ -918,6 +925,7 @@ void EditorFileSystem::_scan_fs_changes(EditorFileSystemDirectory *p_dir, const
 					fi->type = ResourceLoader::get_resource_type(path);
 					fi->script_class_name = _get_global_script_class(fi->type, path, &fi->script_class_extends, &fi->script_class_icon_path);
 					fi->import_valid = ResourceLoader::is_import_valid(path);
+					fi->import_group_file = ResourceLoader::get_import_group_file(path);
 
 					{
 						ItemAction ia;
@@ -1187,7 +1195,10 @@ void EditorFileSystem::_save_filesystem_cache(EditorFileSystemDirectory *p_dir,
 
 	for (int i = 0; i < p_dir->files.size(); i++) {
 
-		String s = p_dir->files[i]->file + "::" + p_dir->files[i]->type + "::" + itos(p_dir->files[i]->modified_time) + "::" + itos(p_dir->files[i]->import_modified_time) + "::" + itos(p_dir->files[i]->import_valid) + "::" + p_dir->files[i]->script_class_name + "<>" + p_dir->files[i]->script_class_extends + "<>" + p_dir->files[i]->script_class_icon_path;
+		if (p_dir->files[i]->import_group_file != String()) {
+			group_file_cache.insert(p_dir->files[i]->import_group_file);
+		}
+		String s = p_dir->files[i]->file + "::" + p_dir->files[i]->type + "::" + itos(p_dir->files[i]->modified_time) + "::" + itos(p_dir->files[i]->import_modified_time) + "::" + itos(p_dir->files[i]->import_valid) + "::" + p_dir->files[i]->import_group_file + "::" + p_dir->files[i]->script_class_name + "<>" + p_dir->files[i]->script_class_extends + "<>" + p_dir->files[i]->script_class_icon_path;
 		s += "::";
 		for (int j = 0; j < p_dir->files[i]->deps.size(); j++) {
 
@@ -1523,6 +1534,7 @@ void EditorFileSystem::update_file(const String &p_file) {
 
 	fs->files[cpos]->type = type;
 	fs->files[cpos]->script_class_name = _get_global_script_class(type, p_file, &fs->files[cpos]->script_class_extends, &fs->files[cpos]->script_class_icon_path);
+	fs->files[cpos]->import_group_file = ResourceLoader::get_import_group_file(p_file);
 	fs->files[cpos]->modified_time = FileAccess::get_modified_time(p_file);
 	fs->files[cpos]->deps = _get_dependencies(p_file);
 	fs->files[cpos]->import_valid = ResourceLoader::is_import_valid(p_file);
@@ -1534,6 +1546,168 @@ void EditorFileSystem::update_file(const String &p_file) {
 	_queue_update_script_classes();
 }
 
+Error EditorFileSystem::_reimport_group(const String &p_group_file, const Vector<String> &p_files) {
+
+	String importer_name;
+
+	Map<String, Map<StringName, Variant> > source_file_options;
+	Map<String, String> base_paths;
+	for (int i = 0; i < p_files.size(); i++) {
+
+		Ref<ConfigFile> config;
+		config.instance();
+		Error err = config->load(p_files[i] + ".import");
+		ERR_CONTINUE(err != OK);
+		ERR_CONTINUE(!config->has_section_key("remap", "importer"));
+		String file_importer_name = config->get_value("remap", "importer");
+		ERR_CONTINUE(file_importer_name == String());
+
+		if (importer_name != String() && importer_name != file_importer_name) {
+			print_line("one importer: " + importer_name + " the other: " + file_importer_name);
+			EditorNode::get_singleton()->show_warning(vformat(TTR("There are multiple importers for different types pointing to file %s, import aborted"), p_group_file));
+			ERR_FAIL_V(ERR_FILE_CORRUPT);
+		}
+
+		source_file_options[p_files[i]] = Map<StringName, Variant>();
+		importer_name = file_importer_name;
+
+		Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
+		ERR_FAIL_COND_V(!importer.is_valid(), ERR_FILE_CORRUPT);
+		List<ResourceImporter::ImportOption> options;
+		importer->get_import_options(&options);
+		//set default values
+		for (List<ResourceImporter::ImportOption>::Element *E = options.front(); E; E = E->next()) {
+
+			source_file_options[p_files[i]][E->get().option.name] = E->get().default_value;
+		}
+
+		if (config->has_section("params")) {
+			List<String> sk;
+			config->get_section_keys("params", &sk);
+			for (List<String>::Element *E = sk.front(); E; E = E->next()) {
+				String param = E->get();
+				Variant value = config->get_value("params", param);
+				//override with whathever is in file
+				source_file_options[p_files[i]][param] = value;
+			}
+		}
+
+		base_paths[p_files[i]] = ResourceFormatImporter::get_singleton()->get_import_base_path(p_files[i]);
+	}
+
+	ERR_FAIL_COND_V(importer_name == String(), ERR_UNCONFIGURED);
+
+	Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
+
+	Error err = importer->import_group_file(p_group_file, source_file_options, base_paths);
+
+	//all went well, overwrite config files with proper remaps and md5s
+	for (Map<String, Map<StringName, Variant> >::Element *E = source_file_options.front(); E; E = E->next()) {
+
+		String file = E->key();
+		String base_path = ResourceFormatImporter::get_singleton()->get_import_base_path(file);
+		FileAccessRef f = FileAccess::open(file + ".import", FileAccess::WRITE);
+		ERR_FAIL_COND_V(!f, ERR_FILE_CANT_OPEN);
+
+		//write manually, as order matters ([remap] has to go first for performance).
+		f->store_line("[remap]");
+		f->store_line("");
+		f->store_line("importer=\"" + importer->get_importer_name() + "\"");
+		if (importer->get_resource_type() != "") {
+			f->store_line("type=\"" + importer->get_resource_type() + "\"");
+		}
+
+		Vector<String> dest_paths;
+
+		if (err == OK) {
+			String path = base_path + "." + importer->get_save_extension();
+			f->store_line("path=\"" + path + "\"");
+			dest_paths.push_back(path);
+		}
+
+		f->store_line("group_file=" + Variant(p_group_file).get_construct_string());
+
+		if (err == OK) {
+			f->store_line("valid=true");
+		} else {
+			f->store_line("valid=false");
+		}
+		f->store_line("[deps]\n");
+
+		f->store_line("");
+
+		f->store_line("source_file=" + Variant(file).get_construct_string());
+		if (dest_paths.size()) {
+			Array dp;
+			for (int i = 0; i < dest_paths.size(); i++) {
+				dp.push_back(dest_paths[i]);
+			}
+			f->store_line("dest_files=" + Variant(dp).get_construct_string() + "\n");
+		}
+		f->store_line("[params]");
+		f->store_line("");
+
+		//store options in provided order, to avoid file changing. Order is also important because first match is accepted first.
+
+		List<ResourceImporter::ImportOption> options;
+		importer->get_import_options(&options);
+		//set default values
+		for (List<ResourceImporter::ImportOption>::Element *F = options.front(); F; F = F->next()) {
+
+			String base = F->get().option.name;
+			Variant v = F->get().default_value;
+			if (source_file_options[file].has(base)) {
+				v = source_file_options[file][base];
+			}
+			String value;
+			VariantWriter::write_to_string(v, value);
+			f->store_line(base + "=" + value);
+		}
+
+		f->close();
+
+		// Store the md5's of the various files. These are stored separately so that the .import files can be version controlled.
+		FileAccessRef md5s = FileAccess::open(base_path + ".md5", FileAccess::WRITE);
+		ERR_FAIL_COND_V(!md5s, ERR_FILE_CANT_OPEN);
+
+		md5s->store_line("source_md5=\"" + FileAccess::get_md5(file) + "\"");
+		if (dest_paths.size()) {
+			md5s->store_line("dest_md5=\"" + FileAccess::get_multiple_md5(dest_paths) + "\"\n");
+		}
+		md5s->close();
+
+		EditorFileSystemDirectory *fs = NULL;
+		int cpos = -1;
+		bool found = _find_file(file, &fs, cpos);
+		ERR_FAIL_COND_V(!found, ERR_UNCONFIGURED);
+
+		//update modified times, to avoid reimport
+		fs->files[cpos]->modified_time = FileAccess::get_modified_time(file);
+		fs->files[cpos]->import_modified_time = FileAccess::get_modified_time(file + ".import");
+		fs->files[cpos]->deps = _get_dependencies(file);
+		fs->files[cpos]->type = importer->get_resource_type();
+		fs->files[cpos]->import_valid = err == OK;
+
+		//if file is currently up, maybe the source it was loaded from changed, so import math must be updated for it
+		//to reload properly
+		if (ResourceCache::has(file)) {
+
+			Resource *r = ResourceCache::get(file);
+
+			if (r->get_import_path() != String()) {
+
+				String dst_path = ResourceFormatImporter::get_singleton()->get_internal_resource_path(file);
+				r->set_import_path(dst_path);
+				r->set_import_last_modified_time(0);
+			}
+		}
+
+		EditorResourcePreview::get_singleton()->check_for_invalidation(file);
+	}
+
+	return err;
+}
+
 void EditorFileSystem::_reimport_file(const String &p_file) {
 
 	EditorFileSystemDirectory *fs = NULL;
@@ -1738,6 +1912,24 @@ void EditorFileSystem::_reimport_file(const String &p_file) {
 	EditorResourcePreview::get_singleton()->check_for_invalidation(p_file);
 }
 
+void EditorFileSystem::_find_group_files(EditorFileSystemDirectory *efd, Map<String, Vector<String> > &group_files, Set<String> &groups_to_reimport) {
+
+	int fc = efd->files.size();
+	const EditorFileSystemDirectory::FileInfo *const *files = efd->files.ptr();
+	for (int i = 0; i < fc; i++) {
+		if (groups_to_reimport.has(files[i]->import_group_file)) {
+			if (!group_files.has(files[i]->import_group_file)) {
+				group_files[files[i]->import_group_file] = Vector<String>();
+			}
+			group_files[files[i]->import_group_file].push_back(efd->get_file_path(i));
+		}
+	}
+
+	for (int i = 0; i < efd->get_subdir_count(); i++) {
+		_find_group_files(efd->get_subdir(i), group_files, groups_to_reimport);
+	}
+}
+
 void EditorFileSystem::reimport_files(const Vector<String> &p_files) {
 
 	{ //check that .import folder exists
@@ -1757,22 +1949,58 @@ void EditorFileSystem::reimport_files(const Vector<String> &p_files) {
 	EditorProgress pr("reimport", TTR("(Re)Importing Assets"), p_files.size());
 
 	Vector<ImportFile> files;
+	Set<String> groups_to_reimport;
 
 	for (int i = 0; i < p_files.size(); i++) {
-		ImportFile ifile;
-		ifile.path = p_files[i];
-		ifile.order = ResourceFormatImporter::get_singleton()->get_import_order(p_files[i]);
-		files.push_back(ifile);
+
+		String group_file = ResourceFormatImporter::get_singleton()->get_import_group_file(p_files[i]);
+
+		if (group_file_cache.has(p_files[i])) {
+			//maybe the file itself is a group!
+			groups_to_reimport.insert(p_files[i]);
+			//groups do not belong to grups
+			group_file = String();
+		} else if (group_file != String()) {
+			//it's a group file, add group to import and skip this file
+			groups_to_reimport.insert(group_file);
+		} else {
+			//it's a regular file
+			ImportFile ifile;
+			ifile.path = p_files[i];
+			ifile.order = ResourceFormatImporter::get_singleton()->get_import_order(p_files[i]);
+			files.push_back(ifile);
+		}
+
+		//group may have changed, so also update group reference
+		EditorFileSystemDirectory *fs = NULL;
+		int cpos = -1;
+		if (_find_file(p_files[i], &fs, cpos)) {
+
+			fs->files.write[cpos]->import_group_file = group_file;
+		}
 	}
 
 	files.sort();
 
 	for (int i = 0; i < files.size(); i++) {
 		pr.step(files[i].path.get_file(), i);
-
 		_reimport_file(files[i].path);
 	}
 
+	//reimport groups
+
+	if (groups_to_reimport.size()) {
+		Map<String, Vector<String> > group_files;
+		_find_group_files(filesystem, group_files, groups_to_reimport);
+		for (Map<String, Vector<String> >::Element *E = group_files.front(); E; E = E->next()) {
+
+			Error err = _reimport_group(E->key(), E->get());
+			if (err == OK) {
+				_reimport_file(E->key());
+			}
+		}
+	}
+
 	_save_filesystem_cache();
 	importing = false;
 	if (!is_scanning()) {
@@ -1793,6 +2021,63 @@ Error EditorFileSystem::_resource_import(const String &p_path) {
 	return OK;
 }
 
+bool EditorFileSystem::is_group_file(const String &p_path) const {
+	return group_file_cache.has(p_path);
+}
+
+void EditorFileSystem::_move_group_files(EditorFileSystemDirectory *efd, const String &p_group_file, const String &p_new_location) {
+
+	int fc = efd->files.size();
+	EditorFileSystemDirectory::FileInfo *const *files = efd->files.ptrw();
+	for (int i = 0; i < fc; i++) {
+
+		if (files[i]->import_group_file == p_group_file) {
+
+			files[i]->import_group_file = p_new_location;
+
+			Ref<ConfigFile> config;
+			config.instance();
+			String path = efd->get_file_path(i) + ".import";
+			Error err = config->load(path);
+			if (err != OK) {
+				continue;
+			}
+			if (config->has_section_key("remap", "group_file")) {
+
+				config->set_value("remap", "group_file", p_new_location);
+			}
+
+			List<String> sk;
+			config->get_section_keys("params", &sk);
+			for (List<String>::Element *E = sk.front(); E; E = E->next()) {
+				//not very clean, but should work
+				String param = E->get();
+				String value = config->get_value("params", param);
+				if (value == p_group_file) {
+					config->set_value("params", param, p_new_location);
+				}
+			}
+
+			config->save(path);
+		}
+	}
+
+	for (int i = 0; i < efd->get_subdir_count(); i++) {
+		_move_group_files(efd->get_subdir(i), p_group_file, p_new_location);
+	}
+}
+
+void EditorFileSystem::move_group_file(const String &p_path, const String &p_new_path) {
+
+	if (get_filesystem()) {
+		_move_group_files(get_filesystem(), p_path, p_new_path);
+		if (group_file_cache.has(p_path)) {
+			group_file_cache.erase(p_path);
+			group_file_cache.insert(p_new_path);
+		}
+	}
+}
+
 void EditorFileSystem::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_filesystem"), &EditorFileSystem::get_filesystem);
diff --git a/editor/editor_file_system.h b/editor/editor_file_system.h
index 2a9e325454..8943706202 100644
--- a/editor/editor_file_system.h
+++ b/editor/editor_file_system.h
@@ -56,6 +56,7 @@ class EditorFileSystemDirectory : public Object {
 		uint64_t modified_time;
 		uint64_t import_modified_time;
 		bool import_valid;
+		String import_group_file;
 		Vector<String> deps;
 		bool verified; //used for checking changes
 		String script_class_name;
@@ -167,6 +168,7 @@ class EditorFileSystem : public Node {
 		uint64_t import_modification_time;
 		Vector<String> deps;
 		bool import_valid;
+		String import_group_file;
 		String script_class_name;
 		String script_class_extends;
 		String script_class_icon_path;
@@ -211,6 +213,7 @@ class EditorFileSystem : public Node {
 	void _update_extensions();
 
 	void _reimport_file(const String &p_file);
+	Error _reimport_group(const String &p_group_file, const Vector<String> &p_files);
 
 	bool _test_for_reimport(const String &p_path, bool p_only_imported_files);
 
@@ -236,6 +239,12 @@ class EditorFileSystem : public Node {
 
 	bool using_fat_32; //workaround for projects in FAT32 filesystem (pendrives, most of the time)
 
+	void _find_group_files(EditorFileSystemDirectory *efd, Map<String, Vector<String> > &group_files, Set<String> &groups_to_reimport);
+
+	void _move_group_files(EditorFileSystemDirectory *efd, const String &p_group_file, const String &p_new_location);
+
+	Set<String> group_file_cache;
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
@@ -260,6 +269,9 @@ public:
 
 	void update_script_classes();
 
+	bool is_group_file(const String &p_path) const;
+	void move_group_file(const String &p_path, const String &p_new_path);
+
 	EditorFileSystem();
 	~EditorFileSystem();
 };
diff --git a/editor/editor_folding.cpp b/editor/editor_folding.cpp
index 77c0f7491e..f6079624de 100644
--- a/editor/editor_folding.cpp
+++ b/editor/editor_folding.cpp
@@ -92,7 +92,7 @@ void EditorFolding::load_resource_folding(RES p_resource, const String &p_path)
 	_set_unfolds(p_resource.ptr(), unfolds);
 }
 
-void EditorFolding::_fill_folds(const Node *p_root, const Node *p_node, Array &p_folds, Array &resource_folds, Set<RES> &resources) {
+void EditorFolding::_fill_folds(const Node *p_root, const Node *p_node, Array &p_folds, Array &resource_folds, Array& nodes_folded,Set<RES> &resources) {
 	if (p_root != p_node) {
 		if (!p_node->get_owner()) {
 			return; //not owned, bye
@@ -102,6 +102,9 @@ void EditorFolding::_fill_folds(const Node *p_root, const Node *p_node, Array &p
 		}
 	}
 
+	if (p_node->is_displayed_folded()) {
+		nodes_folded.push_back(p_root->get_path_to(p_node));
+	}
 	PoolVector<String> unfolds = _get_unfolds(p_node);
 
 	if (unfolds.size()) {
@@ -112,20 +115,22 @@ void EditorFolding::_fill_folds(const Node *p_root, const Node *p_node, Array &p
 	List<PropertyInfo> plist;
 	p_node->get_property_list(&plist);
 	for (List<PropertyInfo>::Element *E = plist.front(); E; E = E->next()) {
-		if (E->get().type == Variant::OBJECT) {
-			RES res = p_node->get(E->get().name);
-			if (res.is_valid() && !resources.has(res) && res->get_path() != String() && !res->get_path().is_resource_file()) {
-
-				PoolVector<String> res_unfolds = _get_unfolds(res.ptr());
-				resource_folds.push_back(res->get_path());
-				resource_folds.push_back(res_unfolds);
-				resources.insert(res);
+		if (E->get().usage & PROPERTY_USAGE_EDITOR) {
+			if (E->get().type == Variant::OBJECT) {
+				RES res = p_node->get(E->get().name);
+				if (res.is_valid() && !resources.has(res) && res->get_path() != String() && !res->get_path().is_resource_file()) {
+
+					PoolVector<String> res_unfolds = _get_unfolds(res.ptr());
+					resource_folds.push_back(res->get_path());
+					resource_folds.push_back(res_unfolds);
+					resources.insert(res);
+				}
 			}
 		}
 	}
 
 	for (int i = 0; i < p_node->get_child_count(); i++) {
-		_fill_folds(p_root, p_node->get_child(i), p_folds, resource_folds, resources);
+		_fill_folds(p_root, p_node->get_child(i), p_folds, resource_folds, nodes_folded,resources);
 	}
 }
 void EditorFolding::save_scene_folding(const Node *p_scene, const String &p_path) {
@@ -135,10 +140,12 @@ void EditorFolding::save_scene_folding(const Node *p_scene, const String &p_path
 
 	Array unfolds, res_unfolds;
 	Set<RES> resources;
-	_fill_folds(p_scene, p_scene, unfolds, res_unfolds, resources);
+	Array nodes_folded;
+	_fill_folds(p_scene, p_scene, unfolds, res_unfolds, nodes_folded, resources);
 
 	config->set_value("folding", "node_unfolds", unfolds);
 	config->set_value("folding", "resource_unfolds", res_unfolds);
+	config->set_value("folding", "nodes_folded", nodes_folded);
 
 	String path = EditorSettings::get_singleton()->get_project_settings_dir();
 	String file = p_path.get_file() + "-folding-" + p_path.md5_text() + ".cfg";
@@ -166,6 +173,10 @@ void EditorFolding::load_scene_folding(Node *p_scene, const String &p_path) {
 	if (config->has_section_key("folding", "resource_unfolds")) {
 		res_unfolds = config->get_value("folding", "resource_unfolds");
 	}
+	Array nodes_folded;
+	if (config->has_section_key("folding", "nodes_folded")) {
+		nodes_folded = config->get_value("folding", "nodes_folded");
+	}
 
 	ERR_FAIL_COND(unfolds.size() & 1);
 	ERR_FAIL_COND(res_unfolds.size() & 1);
@@ -193,6 +204,14 @@ void EditorFolding::load_scene_folding(Node *p_scene, const String &p_path) {
 		PoolVector<String> unfolds2 = res_unfolds[i + 1];
 		_set_unfolds(res.ptr(), unfolds2);
 	}
+
+	for(int i=0;i<nodes_folded.size();i++) {
+		NodePath fold_path = nodes_folded[i];
+		if (p_scene->has_node(fold_path)) {
+			Node *node = p_scene->get_node(fold_path);
+			node->set_display_folded(true);
+		}
+	}
 }
 
 bool EditorFolding::has_folding_data(const String &p_path) {
diff --git a/editor/editor_folding.h b/editor/editor_folding.h
index e4f7dbba80..5fc980c4a9 100644
--- a/editor/editor_folding.h
+++ b/editor/editor_folding.h
@@ -38,7 +38,7 @@ class EditorFolding {
 	PoolVector<String> _get_unfolds(const Object *p_object);
 	void _set_unfolds(Object *p_object, const PoolVector<String> &p_unfolds);
 
-	void _fill_folds(const Node *p_root, const Node *p_node, Array &p_folds, Array &resource_folds, Set<RES> &resources);
+	void _fill_folds(const Node *p_root, const Node *p_node, Array &p_folds, Array &resource_folds, Array &nodes_folded, Set<RES> &resources);
 
 	void _do_object_unfolds(Object *p_object, Set<RES> &resources);
 	void _do_node_unfolds(Node *p_root, Node *p_node, Set<RES> &resources);
diff --git a/editor/editor_help.cpp b/editor/editor_help.cpp
index e0acc5cd70..5917869988 100644
--- a/editor/editor_help.cpp
+++ b/editor/editor_help.cpp
@@ -48,11 +48,12 @@ void EditorHelp::_init_colors() {
 	text_color = get_color("default_color", "RichTextLabel");
 	headline_color = get_color("headline_color", "EditorHelp");
 	base_type_color = title_color.linear_interpolate(text_color, 0.5);
-	comment_color = Color(text_color.r, text_color.g, text_color.b, 0.6);
+	comment_color = text_color * Color(1, 1, 1, 0.6);
 	symbol_color = comment_color;
-	value_color = Color(text_color.r, text_color.g, text_color.b, 0.4);
-	qualifier_color = Color(text_color.r, text_color.g, text_color.b, 0.8);
+	value_color = text_color * Color(1, 1, 1, 0.4);
+	qualifier_color = text_color * Color(1, 1, 1, 0.8);
 	type_color = get_color("accent_color", "Editor").linear_interpolate(text_color, 0.5);
+	class_desc->add_color_override("selection_color", get_color("accent_color", "Editor") * Color(1, 1, 1, 0.4));
 }
 
 void EditorHelp::_unhandled_key_input(const Ref<InputEvent> &p_ev) {
@@ -96,8 +97,10 @@ void EditorHelp::_class_desc_select(const String &p_select) {
 		emit_signal("go_to_help", "class_name:" + p_select.substr(1, p_select.length()));
 		return;
 	} else if (p_select.begins_with("@")) {
-		String tag = p_select.substr(1, 6);
-		String link = p_select.substr(7, p_select.length());
+		int tag_end = p_select.find(" ");
+
+		String tag = p_select.substr(1, tag_end - 1);
+		String link = p_select.substr(tag_end + 1, p_select.length()).lstrip(" ");
 
 		String topic;
 		Map<String, int> *table = NULL;
@@ -108,24 +111,50 @@ void EditorHelp::_class_desc_select(const String &p_select) {
 		} else if (tag == "member") {
 			topic = "class_property";
 			table = &this->property_line;
-		} else if (tag == "enum  ") {
+		} else if (tag == "enum") {
 			topic = "class_enum";
 			table = &this->enum_line;
 		} else if (tag == "signal") {
 			topic = "class_signal";
 			table = &this->signal_line;
+		} else if (tag == "constant") {
+			topic = "class_constant";
+			table = &this->constant_line;
 		} else {
 			return;
 		}
 
 		if (link.find(".") != -1) {
-
 			emit_signal("go_to_help", topic + ":" + link.get_slice(".", 0) + ":" + link.get_slice(".", 1));
 		} else {
-
-			if (!table->has(link))
-				return;
-			class_desc->scroll_to_line((*table)[link]);
+			if (table->has(link)) {
+				// Found in the current page
+				class_desc->scroll_to_line((*table)[link]);
+			} else {
+				if (topic == "class_enum") {
+					// Try to find the enum in @GlobalScope
+					const DocData::ClassDoc &cd = doc->class_list["@GlobalScope"];
+
+					for (int i = 0; i < cd.constants.size(); i++) {
+						if (cd.constants[i].enumeration == link) {
+							// Found in @GlobalScope
+							emit_signal("go_to_help", topic + ":@GlobalScope:" + link);
+							break;
+						}
+					}
+				} else if (topic == "class_constant") {
+					// Try to find the constant in @GlobalScope
+					const DocData::ClassDoc &cd = doc->class_list["@GlobalScope"];
+
+					for (int i = 0; i < cd.constants.size(); i++) {
+						if (cd.constants[i].name == link) {
+							// Found in @GlobalScope
+							emit_signal("go_to_help", topic + ":@GlobalScope:" + link);
+							break;
+						}
+					}
+				}
+			}
 		}
 	} else if (p_select.begins_with("http")) {
 		OS::get_singleton()->shell_open(p_select);
@@ -203,7 +232,7 @@ void EditorHelp::_add_method(const DocData::MethodDoc &p_method, bool p_overview
 	}
 
 	if (p_overview && p_method.description != "") {
-		class_desc->push_meta("@method" + p_method.name);
+		class_desc->push_meta("@method " + p_method.name);
 	}
 
 	class_desc->push_color(headline_color);
@@ -441,7 +470,7 @@ void EditorHelp::_update_doc() {
 			}
 			class_desc->push_cell();
 			if (describe) {
-				class_desc->push_meta("@member" + cd.properties[i].name);
+				class_desc->push_meta("@member " + cd.properties[i].name);
 			}
 
 			class_desc->push_font(doc_code_font);
@@ -733,6 +762,9 @@ void EditorHelp::_update_doc() {
 					if (cd.name == "@GlobalScope")
 						enumValuesContainer[enum_list[i].name] = enumStartingLine;
 
+					// Add the enum constant line to the constant_line map so we can locate it as a constant
+					constant_line[enum_list[i].name] = class_desc->get_line_count() - 2;
+
 					class_desc->push_font(doc_code_font);
 					class_desc->push_color(headline_color);
 					_add_text(enum_list[i].name);
@@ -1160,12 +1192,15 @@ static void _add_text_to_rt(const String &p_bbcode, RichTextLabel *p_rt) {
 			p_rt->add_text("[");
 			pos = brk_pos + 1;
 
-		} else if (tag.begins_with("method ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ")) {
+		} else if (tag.begins_with("method ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ") || tag.begins_with("constant ")) {
+
+			int tag_end = tag.find(" ");
+
+			String link_tag = tag.substr(0, tag_end);
+			String link_target = tag.substr(tag_end + 1, tag.length()).lstrip(" ");
 
-			String link_target = tag.substr(tag.find(" ") + 1, tag.length());
-			String link_tag = tag.substr(0, tag.find(" ")).rpad(6);
 			p_rt->push_color(link_color);
-			p_rt->push_meta("@" + link_tag + link_target);
+			p_rt->push_meta("@" + link_tag + " " + link_target);
 			p_rt->add_text(link_target + (tag.begins_with("method ") ? "()" : ""));
 			p_rt->pop();
 			p_rt->pop();
@@ -1340,19 +1375,11 @@ void EditorHelp::_notification(int p_what) {
 
 	switch (p_what) {
 
-		case NOTIFICATION_READY: {
-
-			_update_doc();
-
-		} break;
-
+		case NOTIFICATION_READY:
 		case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
-
-			class_desc->add_color_override("selection_color", EditorSettings::get_singleton()->get("text_editor/theme/selection_color"));
 			_update_doc();
 
 		} break;
-
 		default: break;
 	}
 }
@@ -1426,7 +1453,7 @@ EditorHelp::EditorHelp() {
 	class_desc = memnew(RichTextLabel);
 	add_child(class_desc);
 	class_desc->set_v_size_flags(SIZE_EXPAND_FILL);
-	class_desc->add_color_override("selection_color", EditorSettings::get_singleton()->get("text_editor/theme/selection_color"));
+	class_desc->add_color_override("selection_color", get_color("accent_color", "Editor") * Color(1, 1, 1, 0.4));
 	class_desc->connect("meta_clicked", this, "_class_desc_select");
 	class_desc->connect("gui_input", this, "_class_desc_input");
 
@@ -1491,7 +1518,7 @@ void EditorHelpBit::_notification(int p_what) {
 	switch (p_what) {
 		case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
 
-			rich_text->add_color_override("selection_color", EditorSettings::get_singleton()->get("text_editor/theme/selection_color"));
+			rich_text->add_color_override("selection_color", get_color("accent_color", "Editor") * Color(1, 1, 1, 0.4));
 		} break;
 
 		default: break;
@@ -1509,7 +1536,7 @@ EditorHelpBit::EditorHelpBit() {
 	rich_text = memnew(RichTextLabel);
 	add_child(rich_text);
 	rich_text->connect("meta_clicked", this, "_meta_clicked");
-	rich_text->add_color_override("selection_color", EditorSettings::get_singleton()->get("text_editor/theme/selection_color"));
+	rich_text->add_color_override("selection_color", get_color("accent_color", "Editor") * Color(1, 1, 1, 0.4));
 	rich_text->set_override_selected_font_color(false);
 	set_custom_minimum_size(Size2(0, 70 * EDSCALE));
 }
diff --git a/editor/editor_inspector.cpp b/editor/editor_inspector.cpp
index 60fa5ff16f..ecb9ea5f35 100644
--- a/editor/editor_inspector.cpp
+++ b/editor/editor_inspector.cpp
@@ -211,12 +211,14 @@ void EditorProperty::_notification(int p_what) {
 		}
 
 		int ofs = 0;
+		int text_limit = text_size;
+
 		if (checkable) {
 			Ref<Texture> checkbox;
 			if (checked)
-				checkbox = get_icon("checked", "CheckBox");
+				checkbox = get_icon("GuiChecked", "EditorIcons");
 			else
-				checkbox = get_icon("unchecked", "CheckBox");
+				checkbox = get_icon("GuiUnchecked", "EditorIcons");
 
 			Color color2(1, 1, 1);
 			if (check_hover) {
@@ -228,12 +230,11 @@ void EditorProperty::_notification(int p_what) {
 			draw_texture(checkbox, check_rect.position, color2);
 			ofs += get_constant("hseparator", "Tree");
 			ofs += checkbox->get_width();
+			text_limit -= ofs;
 		} else {
 			check_rect = Rect2();
 		}
 
-		int text_limit = text_size;
-
 		if (can_revert) {
 			Ref<Texture> reload_icon = get_icon("ReloadSmall", "EditorIcons");
 			text_limit -= reload_icon->get_width() + get_constant("hseparator", "Tree") * 2;
@@ -433,7 +434,7 @@ bool EditorPropertyRevert::is_node_property_different(Node *p_node, const Varian
 		float a = p_current;
 		float b = p_orig;
 
-		return Math::abs(a - b) > CMP_EPSILON; //this must be done because, as some scenes save as text, there might be a tiny difference in floats due to numerical error
+		return !Math::is_equal_approx(a, b); //this must be done because, as some scenes save as text, there might be a tiny difference in floats due to numerical error
 	}
 
 	return bool(Variant::evaluate(Variant::OP_NOT_EQUAL, p_current, p_orig));
@@ -470,10 +471,12 @@ bool EditorPropertyRevert::can_property_revert(Object *p_object, const StringNam
 
 	if (!has_revert && !p_object->get_script().is_null()) {
 		Ref<Script> scr = p_object->get_script();
-		Variant orig_value;
-		if (scr->get_property_default_value(p_property, orig_value)) {
-			if (orig_value != p_object->get(p_property)) {
-				has_revert = true;
+		if (scr.is_valid()) {
+			Variant orig_value;
+			if (scr->get_property_default_value(p_property, orig_value)) {
+				if (orig_value != p_object->get(p_property)) {
+					has_revert = true;
+				}
 			}
 		}
 	}
@@ -668,11 +671,13 @@ void EditorProperty::_gui_input(const Ref<InputEvent> &p_event) {
 
 			if (!object->get_script().is_null()) {
 				Ref<Script> scr = object->get_script();
-				Variant orig_value;
-				if (scr->get_property_default_value(property, orig_value)) {
-					emit_changed(property, orig_value);
-					update_property();
-					return;
+				if (scr.is_valid()) {
+					Variant orig_value;
+					if (scr->get_property_default_value(property, orig_value)) {
+						emit_changed(property, orig_value);
+						update_property();
+						return;
+					}
 				}
 			}
 
@@ -800,6 +805,9 @@ void EditorProperty::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_tooltip_text"), &EditorProperty::get_tooltip_text);
 
+	ClassDB::bind_method(D_METHOD("add_focusable", "control"), &EditorProperty::add_focusable);
+	ClassDB::bind_method(D_METHOD("set_bottom_editor", "editor"), &EditorProperty::set_bottom_editor);
+
 	ClassDB::bind_method(D_METHOD("emit_changed", "property", "value", "field", "changing"), &EditorProperty::emit_changed, DEFVAL(StringName()), DEFVAL(false));
 
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "label"), "set_label", "get_label");
@@ -1370,6 +1378,30 @@ void EditorInspector::_parse_added_editors(VBoxContainer *current_vbox, Ref<Edit
 	ped->added_editors.clear();
 }
 
+bool EditorInspector::_is_property_disabled_by_feature_profile(const StringName &p_property) {
+
+	Ref<EditorFeatureProfile> profile = EditorFeatureProfileManager::get_singleton()->get_current_profile();
+	if (profile.is_null()) {
+		return false;
+	}
+
+	StringName class_name = object->get_class();
+
+	while (class_name != StringName()) {
+
+		if (profile->is_class_property_disabled(class_name, p_property)) {
+			return true;
+		}
+		if (profile->is_class_disabled(class_name)) {
+			//won't see properties of a disabled class
+			return true;
+		}
+		class_name = ClassDB::get_parent_class(class_name);
+	}
+
+	return false;
+}
+
 void EditorInspector::update_tree() {
 
 	//to update properly if all is refreshed
@@ -1499,7 +1531,7 @@ void EditorInspector::update_tree() {
 					if (E) {
 						descr = E->get().brief_description;
 					}
-					class_descr_cache[type2] = descr.word_wrap(80);
+					class_descr_cache[type2] = descr;
 				}
 
 				category->set_tooltip(p.name + "::" + (class_descr_cache[type2] == "" ? "" : class_descr_cache[type2]));
@@ -1513,7 +1545,7 @@ void EditorInspector::update_tree() {
 
 			continue;
 
-		} else if (!(p.usage & PROPERTY_USAGE_EDITOR))
+		} else if (!(p.usage & PROPERTY_USAGE_EDITOR) || _is_property_disabled_by_feature_profile(p.name))
 			continue;
 
 		if (p.usage & PROPERTY_USAGE_HIGH_END_GFX && VS::get_singleton()->is_low_end())
@@ -1651,7 +1683,7 @@ void EditorInspector::update_tree() {
 				while (F && descr == String()) {
 					for (int i = 0; i < F->get().properties.size(); i++) {
 						if (F->get().properties[i].name == propname.operator String()) {
-							descr = F->get().properties[i].description.strip_edges().word_wrap(80);
+							descr = F->get().properties[i].description.strip_edges();
 							break;
 						}
 					}
@@ -2132,6 +2164,10 @@ void EditorInspector::_node_removed(Node *p_node) {
 
 void EditorInspector::_notification(int p_what) {
 
+	if (p_what == NOTIFICATION_READY) {
+		EditorFeatureProfileManager::get_singleton()->connect("current_feature_profile_changed", this, "_feature_profile_changed");
+	}
+
 	if (p_what == NOTIFICATION_ENTER_TREE) {
 
 		if (sub_inspector) {
@@ -2238,6 +2274,11 @@ String EditorInspector::get_object_class() const {
 	return object_class;
 }
 
+void EditorInspector::_feature_profile_changed() {
+
+	update_tree();
+}
+
 void EditorInspector::_bind_methods() {
 
 	ClassDB::bind_method("_property_changed", &EditorInspector::_property_changed, DEFVAL(""), DEFVAL(false));
@@ -2254,6 +2295,7 @@ void EditorInspector::_bind_methods() {
 	ClassDB::bind_method("_resource_selected", &EditorInspector::_resource_selected);
 	ClassDB::bind_method("_object_id_selected", &EditorInspector::_object_id_selected);
 	ClassDB::bind_method("_vscroll_changed", &EditorInspector::_vscroll_changed);
+	ClassDB::bind_method("_feature_profile_changed", &EditorInspector::_feature_profile_changed);
 
 	ClassDB::bind_method("refresh", &EditorInspector::refresh);
 
diff --git a/editor/editor_inspector.h b/editor/editor_inspector.h
index 3d22cdb9a3..494e8b5833 100644
--- a/editor/editor_inspector.h
+++ b/editor/editor_inspector.h
@@ -323,6 +323,10 @@ class EditorInspector : public ScrollContainer {
 
 	void _vscroll_changed(double);
 
+	void _feature_profile_changed();
+
+	bool _is_property_disabled_by_feature_profile(const StringName &p_property);
+
 protected:
 	static void _bind_methods();
 	void _notification(int p_what);
diff --git a/editor/editor_log.cpp b/editor/editor_log.cpp
index aaca47622d..b5cdc76115 100644
--- a/editor/editor_log.cpp
+++ b/editor/editor_log.cpp
@@ -78,10 +78,19 @@ void EditorLog::_clear_request() {
 	tool_button->set_icon(Ref<Texture>());
 }
 
+void EditorLog::_copy_request() {
+
+	log->selection_copy();
+}
+
 void EditorLog::clear() {
 	_clear_request();
 }
 
+void EditorLog::copy() {
+	_copy_request();
+}
+
 void EditorLog::add_message(const String &p_msg, MessageType p_type) {
 
 	log->add_newline();
@@ -125,7 +134,9 @@ void EditorLog::_undo_redo_cbk(void *p_self, const String &p_name) {
 void EditorLog::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("_clear_request"), &EditorLog::_clear_request);
+	ClassDB::bind_method(D_METHOD("_copy_request"), &EditorLog::_copy_request);
 	ADD_SIGNAL(MethodInfo("clear_request"));
+	ADD_SIGNAL(MethodInfo("copy_request"));
 }
 
 EditorLog::EditorLog() {
@@ -139,6 +150,12 @@ EditorLog::EditorLog() {
 	title->set_h_size_flags(SIZE_EXPAND_FILL);
 	hb->add_child(title);
 
+	copybutton = memnew(Button);
+	hb->add_child(copybutton);
+	copybutton->set_text(TTR("Copy"));
+	copybutton->set_shortcut(ED_SHORTCUT("editor/copy_output", TTR("Copy Selection"), KEY_MASK_CMD | KEY_C));
+	copybutton->connect("pressed", this, "_copy_request");
+
 	clearbutton = memnew(Button);
 	hb->add_child(clearbutton);
 	clearbutton->set_text(TTR("Clear"));
diff --git a/editor/editor_log.h b/editor/editor_log.h
index 13318fd68f..bb56bd34fe 100644
--- a/editor/editor_log.h
+++ b/editor/editor_log.h
@@ -48,6 +48,7 @@ class EditorLog : public VBoxContainer {
 	GDCLASS(EditorLog, VBoxContainer);
 
 	Button *clearbutton;
+	Button *copybutton;
 	Label *title;
 	RichTextLabel *log;
 	HBoxContainer *title_hb;
@@ -62,6 +63,7 @@ class EditorLog : public VBoxContainer {
 
 	//void _dragged(const Point2& p_ofs);
 	void _clear_request();
+	void _copy_request();
 	static void _undo_redo_cbk(void *p_self, const String &p_name);
 
 protected:
@@ -80,6 +82,7 @@ public:
 	void deinit();
 
 	void clear();
+	void copy();
 	EditorLog();
 	~EditorLog();
 };
diff --git a/editor/editor_node.cpp b/editor/editor_node.cpp
index 6140412a32..fed1f6b4fa 100644
--- a/editor/editor_node.cpp
+++ b/editor/editor_node.cpp
@@ -47,6 +47,7 @@
 #include "core/translation.h"
 #include "core/version.h"
 #include "main/input_default.h"
+#include "main/main.h"
 #include "scene/resources/packed_scene.h"
 #include "servers/physics_2d_server.h"
 
@@ -65,6 +66,7 @@
 #include "editor/import/resource_importer_obj.h"
 #include "editor/import/resource_importer_scene.h"
 #include "editor/import/resource_importer_texture.h"
+#include "editor/import/resource_importer_texture_atlas.h"
 #include "editor/import/resource_importer_wav.h"
 #include "editor/plugins/animation_blend_space_1d_editor.h"
 #include "editor/plugins/animation_blend_space_2d_editor.h"
@@ -81,6 +83,7 @@
 #include "editor/plugins/collision_polygon_2d_editor_plugin.h"
 #include "editor/plugins/collision_polygon_editor_plugin.h"
 #include "editor/plugins/collision_shape_2d_editor_plugin.h"
+#include "editor/plugins/cpu_particles_2d_editor_plugin.h"
 #include "editor/plugins/cpu_particles_editor_plugin.h"
 #include "editor/plugins/curve_editor_plugin.h"
 #include "editor/plugins/editor_preview_plugins.h"
@@ -305,7 +308,14 @@ void EditorNode::_notification(int p_what) {
 		VisualServer::get_singleton()->viewport_set_hide_canvas(get_scene_root()->get_viewport_rid(), true);
 		VisualServer::get_singleton()->viewport_set_disable_environment(get_viewport()->get_viewport_rid(), true);
 
-		_editor_select(EDITOR_3D);
+		feature_profile_manager->notify_changed();
+
+		if (!main_editor_buttons[EDITOR_3D]->is_visible()) { //may be hidden due to feature profile
+			_editor_select(EDITOR_2D);
+		} else {
+			_editor_select(EDITOR_3D);
+		}
+
 		_update_debug_options();
 
 		/* DO NOT LOAD SCENES HERE, WAIT FOR FILE SCANNING AND REIMPORT TO COMPLETE */
@@ -557,11 +567,14 @@ void EditorNode::_editor_select_next() {
 
 	int editor = _get_current_main_editor();
 
-	if (editor == editor_table.size() - 1) {
-		editor = 0;
-	} else {
-		editor++;
-	}
+	do {
+		if (editor == editor_table.size() - 1) {
+			editor = 0;
+		} else {
+			editor++;
+		}
+	} while (main_editor_buttons[editor]->is_visible());
+
 	_editor_select(editor);
 }
 
@@ -569,11 +582,14 @@ void EditorNode::_editor_select_prev() {
 
 	int editor = _get_current_main_editor();
 
-	if (editor == 0) {
-		editor = editor_table.size() - 1;
-	} else {
-		editor--;
-	}
+	do {
+		if (editor == 0) {
+			editor = editor_table.size() - 1;
+		} else {
+			editor--;
+		}
+	} while (main_editor_buttons[editor]->is_visible());
+
 	_editor_select(editor);
 }
 
@@ -910,7 +926,8 @@ bool EditorNode::_find_and_save_edited_subresources(Object *obj, Map<RES, bool>
 						ret_changed = true;
 				}
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -1254,6 +1271,11 @@ void EditorNode::_dialog_action(String p_file) {
 	switch (current_option) {
 		case FILE_NEW_INHERITED_SCENE: {
 
+			Node *scene = editor_data.get_edited_scene_root();
+			// If the previous scene is rootless, just close it in favor of the new one.
+			if (!scene)
+				_menu_option_confirm(FILE_CLOSE, false);
+
 			load_scene(p_file, false, true);
 		} break;
 		case FILE_OPEN_SCENE: {
@@ -1291,6 +1313,7 @@ void EditorNode::_dialog_action(String p_file) {
 				_save_default_environment();
 				_save_scene_with_preview(p_file, scene_idx);
 				_add_to_recent_scenes(p_file);
+				save_layout();
 
 				if (scene_idx != -1)
 					_discard_changes();
@@ -1439,17 +1462,48 @@ void EditorNode::_dialog_action(String p_file) {
 
 bool EditorNode::item_has_editor(Object *p_object) {
 
+	if (_is_class_editor_disabled_by_feature_profile(p_object->get_class())) {
+		return false;
+	}
+
 	return editor_data.get_subeditors(p_object).size() > 0;
 }
 
 void EditorNode::edit_item_resource(RES p_resource) {
 	edit_item(p_resource.ptr());
 }
+
+bool EditorNode::_is_class_editor_disabled_by_feature_profile(const StringName &p_class) {
+
+	Ref<EditorFeatureProfile> profile = EditorFeatureProfileManager::get_singleton()->get_current_profile();
+	if (profile.is_null()) {
+		return false;
+	}
+
+	StringName class_name = p_class;
+
+	while (class_name != StringName()) {
+
+		if (profile->is_class_disabled(class_name)) {
+			return true;
+		}
+		if (profile->is_class_editor_disabled(class_name)) {
+			return true;
+		}
+		class_name = ClassDB::get_parent_class(class_name);
+	}
+
+	return false;
+}
+
 void EditorNode::edit_item(Object *p_object) {
 
 	Vector<EditorPlugin *> sub_plugins;
 
 	if (p_object) {
+		if (_is_class_editor_disabled_by_feature_profile(p_object->get_class())) {
+			return;
+		}
 		sub_plugins = editor_data.get_subeditors(p_object);
 	}
 
@@ -1582,7 +1636,7 @@ void EditorNode::_edit_current() {
 				editable_warning = TTR("This resource belongs to a scene that was imported, so it's not editable.\nPlease read the documentation relevant to importing scenes to better understand this workflow.");
 			} else {
 				if ((!get_edited_scene() || get_edited_scene()->get_filename() != base_path) && ResourceLoader::get_resource_type(base_path) == "PackedScene") {
-					editable_warning = TTR("This resource belongs to a scene that was instanced or inherited.\nChanges to it will not be kept when saving the current scene.");
+					editable_warning = TTR("This resource belongs to a scene that was instanced or inherited.\nChanges to it won't be kept when saving the current scene.");
 				}
 			}
 		} else if (current_res->get_path().is_resource_file()) {
@@ -1607,14 +1661,14 @@ void EditorNode::_edit_current() {
 		if (get_edited_scene() && get_edited_scene()->get_filename() != String()) {
 			String source_scene = get_edited_scene()->get_filename();
 			if (FileAccess::exists(source_scene + ".import")) {
-				editable_warning = TTR("This scene was imported, so changes to it will not be kept.\nInstancing it or inheriting will allow making changes to it.\nPlease read the documentation relevant to importing scenes to better understand this workflow.");
+				editable_warning = TTR("This scene was imported, so changes to it won't be kept.\nInstancing it or inheriting will allow making changes to it.\nPlease read the documentation relevant to importing scenes to better understand this workflow.");
 			}
 		}
 
 	} else {
 
 		if (current_obj->is_class("ScriptEditorDebuggerInspectedObject")) {
-			editable_warning = TTR("This is a remote object so changes to it will not be kept.\nPlease read the documentation relevant to debugging to better understand this workflow.");
+			editable_warning = TTR("This is a remote object, so changes to it won't be kept.\nPlease read the documentation relevant to debugging to better understand this workflow.");
 			capitalize = false;
 			disable_folding = true;
 		}
@@ -1639,6 +1693,12 @@ void EditorNode::_edit_current() {
 
 		EditorPlugin *main_plugin = editor_data.get_editor(current_obj);
 
+		for (int i = 0; i < editor_table.size(); i++) {
+			if (editor_table[i] == main_plugin && !main_editor_buttons[i]->is_visible()) {
+				main_plugin = NULL; //if button is not visible, then no plugin active
+			}
+		}
+
 		if (main_plugin) {
 
 			// special case if use of external editor is true
@@ -1676,7 +1736,11 @@ void EditorNode::_edit_current() {
 			}
 		}
 
-		Vector<EditorPlugin *> sub_plugins = editor_data.get_subeditors(current_obj);
+		Vector<EditorPlugin *> sub_plugins;
+
+		if (!_is_class_editor_disabled_by_feature_profile(current_obj->get_class())) {
+			sub_plugins = editor_data.get_subeditors(current_obj);
+		}
 
 		if (!sub_plugins.empty()) {
 			_display_top_editors(false);
@@ -1684,7 +1748,6 @@ void EditorNode::_edit_current() {
 			_set_top_editors(sub_plugins);
 			_set_editing_top_editors(current_obj);
 			_display_top_editors(true);
-
 		} else if (!editor_plugins_over->get_plugins_list().empty()) {
 
 			hide_top_editors();
@@ -1879,6 +1942,21 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 			open_request(previous_scenes.back()->get());
 
 		} break;
+		case FILE_CLOSE_OTHERS:
+		case FILE_CLOSE_RIGHT:
+		case FILE_CLOSE_ALL: {
+			if (editor_data.get_edited_scene_count() > 1 && (current_option != FILE_CLOSE_RIGHT || editor_data.get_edited_scene() < editor_data.get_edited_scene_count() - 1)) {
+				int next_tab = editor_data.get_edited_scene() + 1;
+				next_tab %= editor_data.get_edited_scene_count();
+				_scene_tab_closed(next_tab, current_option);
+			} else {
+				if (current_option != FILE_CLOSE_ALL)
+					current_option = -1;
+				else
+					_scene_tab_closed(editor_data.get_edited_scene());
+			}
+
+		} break;
 		case FILE_CLOSE_ALL_AND_QUIT:
 		case FILE_CLOSE_ALL_AND_RUN_PROJECT_MANAGER:
 		case FILE_CLOSE: {
@@ -1899,7 +1977,8 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 				break;
 			}
 
-		} // fallthrough
+			FALLTHROUGH;
+		}
 		case SCENE_TAB_CLOSE:
 		case FILE_SAVE_SCENE: {
 
@@ -1915,11 +1994,12 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 
 				if (scene_idx != -1)
 					_discard_changes();
+				save_layout();
 
 				break;
 			}
-			// fallthrough to save_as
-		};
+			FALLTHROUGH;
+		}
 		case FILE_SAVE_AS_SCENE: {
 			int scene_idx = (p_option == FILE_SAVE_SCENE || p_option == FILE_SAVE_AS_SCENE) ? -1 : tab_closing;
 
@@ -2212,6 +2292,23 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 
 			OS::get_singleton()->shell_open(String("file://") + OS::get_singleton()->get_user_data_dir());
 		} break;
+		case FILE_INSTALL_ANDROID_SOURCE: {
+
+			if (p_confirmed) {
+				export_template_manager->install_android_template();
+			} else {
+				if (DirAccess::exists("res://android/build")) {
+					remove_android_build_template->popup_centered_minsize();
+				} else if (export_template_manager->can_install_android_template()) {
+					install_android_build_template->popup_centered_minsize();
+				} else {
+					custom_build_manage_templates->popup_centered_minsize();
+				}
+			}
+		} break;
+		case FILE_EXPLORE_ANDROID_BUILD_TEMPLATES: {
+			OS::get_singleton()->shell_open(String("file://") + ProjectSettings::get_singleton()->get_resource_path().plus_file("android"));
+		} break;
 		case FILE_QUIT:
 		case RUN_PROJECT_MANAGER: {
 
@@ -2357,6 +2454,17 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 			export_template_manager->popup_manager();
 
 		} break;
+		case SETTINGS_MANAGE_FEATURE_PROFILES: {
+
+			Size2 popup_size = Size2(900, 800) * editor_get_scale();
+			Size2 window_size = get_viewport()->get_size();
+
+			popup_size.x = MIN(window_size.x * 0.8, popup_size.x);
+			popup_size.y = MIN(window_size.y * 0.8, popup_size.y);
+
+			feature_profile_manager->popup_centered(popup_size);
+
+		} break;
 		case SETTINGS_TOGGLE_FULLSCREEN: {
 
 			OS::get_singleton()->set_window_fullscreen(!OS::get_singleton()->is_window_fullscreen());
@@ -2460,6 +2568,7 @@ int EditorNode::_next_unsaved_scene(bool p_valid_filename, int p_start) {
 void EditorNode::_exit_editor() {
 	exiting = true;
 	resource_preview->stop(); //stop early to avoid crashes
+	_save_docks();
 	get_tree()->quit();
 }
 
@@ -2470,6 +2579,9 @@ void EditorNode::_discard_changes(const String &p_str) {
 		case FILE_CLOSE_ALL_AND_QUIT:
 		case FILE_CLOSE_ALL_AND_RUN_PROJECT_MANAGER:
 		case FILE_CLOSE:
+		case FILE_CLOSE_OTHERS:
+		case FILE_CLOSE_RIGHT:
+		case FILE_CLOSE_ALL:
 		case SCENE_TAB_CLOSE: {
 
 			_remove_scene(tab_closing);
@@ -2482,6 +2594,15 @@ void EditorNode::_discard_changes(const String &p_str) {
 				} else {
 					_menu_option_confirm(current_option, false);
 				}
+			} else if (current_option == FILE_CLOSE_OTHERS || current_option == FILE_CLOSE_RIGHT) {
+				if (editor_data.get_edited_scene_count() == 1 || (current_option == FILE_CLOSE_RIGHT && editor_data.get_edited_scene_count() <= editor_data.get_edited_scene() + 1)) {
+					current_option = -1;
+					save_confirmation->hide();
+				} else {
+					_menu_option_confirm(current_option, false);
+				}
+			} else if (current_option == FILE_CLOSE_ALL && editor_data.get_edited_scene_count() > 0) {
+				_menu_option_confirm(current_option, false);
 			} else {
 				current_option = -1;
 				save_confirmation->hide();
@@ -2539,10 +2660,13 @@ void EditorNode::_editor_select(int p_which) {
 	if (selecting || changing_scene)
 		return;
 
-	selecting = true;
-
 	ERR_FAIL_INDEX(p_which, editor_table.size());
 
+	if (!main_editor_buttons[p_which]->is_visible()) //button hidden, no editor
+		return;
+
+	selecting = true;
+
 	for (int i = 0; i < main_editor_buttons.size(); i++) {
 		main_editor_buttons[i]->set_pressed(i == p_which);
 	}
@@ -3126,6 +3250,12 @@ InspectorDock *EditorNode::get_inspector_dock() {
 	return inspector_dock;
 }
 
+void EditorNode::_inherit_request(String p_file) {
+
+	current_option = FILE_NEW_INHERITED_SCENE;
+	_dialog_action(p_file);
+}
+
 void EditorNode::_instance_request(const Vector<String> &p_files) {
 
 	request_instance_scenes(p_files);
@@ -3282,6 +3412,7 @@ void EditorNode::register_editor_types() {
 	ClassDB::register_class<EditorProperty>();
 	ClassDB::register_class<AnimationTrackEditPlugin>();
 	ClassDB::register_class<ScriptCreateDialog>();
+	ClassDB::register_class<EditorFeatureProfile>();
 
 	// FIXME: Is this stuff obsolete, or should it be ported to new APIs?
 	ClassDB::register_class<EditorScenePostImport>();
@@ -3350,12 +3481,30 @@ Ref<Texture> EditorNode::get_class_icon(const String &p_class, const String &p_f
 	if (ScriptServer::is_global_class(p_class)) {
 		String icon_path = EditorNode::get_editor_data().script_class_get_icon_path(p_class);
 		RES icon;
+
 		if (FileAccess::exists(icon_path)) {
 			icon = ResourceLoader::load(icon_path);
+			if (icon.is_valid())
+				return icon;
+		}
+
+		Ref<Script> script = ResourceLoader::load(ScriptServer::get_global_class_path(p_class), "Script");
+
+		while (script.is_valid()) {
+			String current_icon_path;
+			script->get_language()->get_global_class_name(script->get_path(), NULL, &current_icon_path);
+			if (FileAccess::exists(current_icon_path)) {
+				RES texture = ResourceLoader::load(current_icon_path);
+				if (texture.is_valid())
+					return texture;
+			}
+			script = script->get_base_script();
 		}
-		if (!icon.is_valid()) {
-			icon = gui_base->get_icon(ScriptServer::get_global_class_native_base(p_class), "EditorIcons");
+
+		if (icon.is_null()) {
+			icon = gui_base->get_icon(ScriptServer::get_global_class_base(p_class), "EditorIcons");
 		}
+
 		return icon;
 	}
 
@@ -3801,7 +3950,13 @@ void EditorNode::_update_dock_slots_visibility() {
 	} else {
 		for (int i = 0; i < DOCK_SLOT_MAX; i++) {
 
-			if (dock_slot[i]->get_tab_count())
+			int tabs_visible = 0;
+			for (int j = 0; j < dock_slot[i]->get_tab_count(); j++) {
+				if (!dock_slot[i]->get_tab_hidden(j)) {
+					tabs_visible++;
+				}
+			}
+			if (tabs_visible)
 				dock_slot[i]->show();
 			else
 				dock_slot[i]->hide();
@@ -3980,6 +4135,7 @@ void EditorNode::_load_open_scenes_from_config(Ref<ConfigFile> p_layout, const S
 	for (int i = 0; i < scenes.size(); i++) {
 		load_scene(scenes[i]);
 	}
+	save_layout();
 
 	restoring_scenes = false;
 }
@@ -4080,8 +4236,8 @@ void EditorNode::_scene_tab_script_edited(int p_tab) {
 		inspector_dock->edit_resource(script);
 }
 
-void EditorNode::_scene_tab_closed(int p_tab) {
-	current_option = SCENE_TAB_CLOSE;
+void EditorNode::_scene_tab_closed(int p_tab, int option) {
+	current_option = option;
 	tab_closing = p_tab;
 	Node *scene = editor_data.get_edited_scene_root(p_tab);
 	if (!scene) {
@@ -4154,7 +4310,11 @@ void EditorNode::_scene_tab_input(const Ref<InputEvent> &p_input) {
 				scene_tabs_context_menu->add_separator();
 				scene_tabs_context_menu->add_item(TTR("Show in FileSystem"), FILE_SHOW_IN_FILESYSTEM);
 				scene_tabs_context_menu->add_item(TTR("Play This Scene"), RUN_PLAY_SCENE);
+				scene_tabs_context_menu->add_separator();
 				scene_tabs_context_menu->add_item(TTR("Close Tab"), FILE_CLOSE);
+				scene_tabs_context_menu->add_item(TTR("Close Other Tabs"), FILE_CLOSE_OTHERS);
+				scene_tabs_context_menu->add_item(TTR("Close Tabs to the Right"), FILE_CLOSE_RIGHT);
+				scene_tabs_context_menu->add_item(TTR("Close All Tabs"), FILE_CLOSE_ALL);
 			}
 			scene_tabs_context_menu->set_position(mb->get_global_position());
 			scene_tabs_context_menu->popup();
@@ -4537,19 +4697,53 @@ void EditorNode::remove_tool_menu_item(const String &p_name) {
 void EditorNode::_dropped_files(const Vector<String> &p_files, int p_screen) {
 
 	String to_path = ProjectSettings::get_singleton()->globalize_path(get_filesystem_dock()->get_selected_path());
-	DirAccessRef dir = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 
+	_add_dropped_files_recursive(p_files, to_path);
+
+	EditorFileSystem::get_singleton()->scan_changes();
+}
+
+void EditorNode::_add_dropped_files_recursive(const Vector<String> &p_files, String to_path) {
+
+	DirAccessRef dir = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 	Vector<String> just_copy = String("ttf,otf").split(",");
+
 	for (int i = 0; i < p_files.size(); i++) {
 
 		String from = p_files[i];
+		String to = to_path.plus_file(from.get_file());
+
+		if (dir->dir_exists(from)) {
+
+			Vector<String> sub_files;
+
+			DirAccessRef sub_dir = DirAccess::open(from);
+			sub_dir->list_dir_begin();
+
+			String next_file = sub_dir->get_next();
+			while (next_file != "") {
+				if (next_file == "." || next_file == "..") {
+					next_file = sub_dir->get_next();
+					continue;
+				}
+
+				sub_files.push_back(from.plus_file(next_file));
+				next_file = sub_dir->get_next();
+			}
+
+			if (!sub_files.empty()) {
+				dir->make_dir(to);
+				_add_dropped_files_recursive(sub_files, to);
+			}
+
+			continue;
+		}
+
 		if (!ResourceFormatImporter::get_singleton()->can_be_imported(from) && (just_copy.find(from.get_extension().to_lower()) == -1)) {
 			continue;
 		}
-		String to = to_path.plus_file(from.get_file());
 		dir->copy(from, to);
 	}
-	EditorFileSystem::get_singleton()->scan_changes();
 }
 
 void EditorNode::_file_access_close_error_notify(const String &p_str) {
@@ -4786,6 +4980,39 @@ void EditorNode::_resource_loaded(RES p_resource, const String &p_path) {
 	singleton->editor_folding.load_resource_folding(p_resource, p_path);
 }
 
+void EditorNode::_feature_profile_changed() {
+
+	Ref<EditorFeatureProfile> profile = feature_profile_manager->get_current_profile();
+	TabContainer *import_tabs = cast_to<TabContainer>(import_dock->get_parent());
+	TabContainer *node_tabs = cast_to<TabContainer>(node_dock->get_parent());
+	TabContainer *fs_tabs = cast_to<TabContainer>(filesystem_dock->get_parent());
+	if (profile.is_valid()) {
+
+		import_tabs->set_tab_hidden(import_dock->get_index(), profile->is_feature_disabled(EditorFeatureProfile::FEATURE_IMPORT_DOCK));
+		node_tabs->set_tab_hidden(node_dock->get_index(), profile->is_feature_disabled(EditorFeatureProfile::FEATURE_NODE_DOCK));
+		fs_tabs->set_tab_hidden(filesystem_dock->get_index(), profile->is_feature_disabled(EditorFeatureProfile::FEATURE_FILESYSTEM_DOCK));
+
+		main_editor_buttons[EDITOR_3D]->set_visible(!profile->is_feature_disabled(EditorFeatureProfile::FEATURE_3D));
+		main_editor_buttons[EDITOR_SCRIPT]->set_visible(!profile->is_feature_disabled(EditorFeatureProfile::FEATURE_SCRIPT));
+		main_editor_buttons[EDITOR_ASSETLIB]->set_visible(!profile->is_feature_disabled(EditorFeatureProfile::FEATURE_ASSET_LIB));
+		if (profile->is_feature_disabled(EditorFeatureProfile::FEATURE_3D) || profile->is_feature_disabled(EditorFeatureProfile::FEATURE_ASSET_LIB) || profile->is_feature_disabled(EditorFeatureProfile::FEATURE_ASSET_LIB)) {
+			_editor_select(EDITOR_2D);
+		}
+	} else {
+
+		import_tabs->set_tab_hidden(import_dock->get_index(), false);
+		node_tabs->set_tab_hidden(node_dock->get_index(), false);
+		fs_tabs->set_tab_hidden(filesystem_dock->get_index(), false);
+		import_dock->set_visible(true);
+		node_dock->set_visible(true);
+		filesystem_dock->set_visible(true);
+		main_editor_buttons[EDITOR_3D]->set_visible(true);
+		main_editor_buttons[EDITOR_ASSETLIB]->set_visible(true);
+	}
+
+	_update_dock_slots_visibility();
+}
+
 void EditorNode::_bind_methods() {
 
 	ClassDB::bind_method("_menu_option", &EditorNode::_menu_option);
@@ -4802,6 +5029,7 @@ void EditorNode::_bind_methods() {
 	ClassDB::bind_method("_get_scene_metadata", &EditorNode::_get_scene_metadata);
 	ClassDB::bind_method("set_edited_scene", &EditorNode::set_edited_scene);
 	ClassDB::bind_method("open_request", &EditorNode::open_request);
+	ClassDB::bind_method("_inherit_request", &EditorNode::_inherit_request);
 	ClassDB::bind_method("_instance_request", &EditorNode::_instance_request);
 	ClassDB::bind_method("_close_messages", &EditorNode::_close_messages);
 	ClassDB::bind_method("_show_messages", &EditorNode::_show_messages);
@@ -4864,6 +5092,7 @@ void EditorNode::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_video_driver_selected"), &EditorNode::_video_driver_selected);
 
 	ClassDB::bind_method(D_METHOD("_resources_changed"), &EditorNode::_resources_changed);
+	ClassDB::bind_method(D_METHOD("_feature_profile_changed"), &EditorNode::_feature_profile_changed);
 
 	ADD_SIGNAL(MethodInfo("play_pressed"));
 	ADD_SIGNAL(MethodInfo("pause_pressed"));
@@ -4883,6 +5112,68 @@ void EditorNode::_print_handler(void *p_this, const String &p_string, bool p_err
 	en->log->add_message(p_string, p_error ? EditorLog::MSG_TYPE_ERROR : EditorLog::MSG_TYPE_STD);
 }
 
+static void _execute_thread(void *p_ud) {
+
+	EditorNode::ExecuteThreadArgs *eta = (EditorNode::ExecuteThreadArgs *)p_ud;
+	Error err = OS::get_singleton()->execute(eta->path, eta->args, true, NULL, &eta->output, &eta->exitcode, true, eta->execute_output_mutex);
+	print_verbose("Thread exit status: " + itos(eta->exitcode));
+	if (err != OK) {
+		eta->exitcode = err;
+	}
+
+	eta->done = true;
+}
+
+int EditorNode::execute_and_show_output(const String &p_title, const String &p_path, const List<String> &p_arguments, bool p_close_on_ok, bool p_close_on_errors) {
+
+	execute_output_dialog->set_title(p_title);
+	execute_output_dialog->get_ok()->set_disabled(true);
+	execute_outputs->clear();
+	execute_outputs->set_scroll_follow(true);
+	execute_output_dialog->popup_centered_ratio();
+
+	ExecuteThreadArgs eta;
+	eta.path = p_path;
+	eta.args = p_arguments;
+	eta.execute_output_mutex = Mutex::create();
+	eta.exitcode = 255;
+	eta.done = false;
+
+	int prev_len = 0;
+
+	eta.execute_output_thread = Thread::create(_execute_thread, &eta);
+
+	ERR_FAIL_COND_V(!eta.execute_output_thread, 0);
+
+	while (!eta.done) {
+		eta.execute_output_mutex->lock();
+		if (prev_len != eta.output.length()) {
+			String to_add = eta.output.substr(prev_len, eta.output.length());
+			prev_len = eta.output.length();
+			execute_outputs->add_text(to_add);
+			Main::iteration();
+		}
+		eta.execute_output_mutex->unlock();
+		OS::get_singleton()->delay_usec(1000);
+	}
+
+	Thread::wait_to_finish(eta.execute_output_thread);
+	memdelete(eta.execute_output_thread);
+	memdelete(eta.execute_output_mutex);
+	execute_outputs->add_text("\nExit Code: " + itos(eta.exitcode));
+
+	if (p_close_on_errors && eta.exitcode != 0) {
+		execute_output_dialog->hide();
+	}
+	if (p_close_on_ok && eta.exitcode == 0) {
+		execute_output_dialog->hide();
+	}
+
+	execute_output_dialog->get_ok()->set_disabled(false);
+
+	return eta.exitcode;
+}
+
 EditorNode::EditorNode() {
 
 	Input::get_singleton()->set_use_accumulated_input(true);
@@ -4996,6 +5287,10 @@ EditorNode::EditorNode() {
 		import_image.instance();
 		ResourceFormatImporter::get_singleton()->add_importer(import_image);
 
+		Ref<ResourceImporterTextureAtlas> import_texture_atlas;
+		import_texture_atlas.instance();
+		ResourceFormatImporter::get_singleton()->add_importer(import_texture_atlas);
+
 		Ref<ResourceImporterCSVTranslation> import_csv_translation;
 		import_csv_translation.instance();
 		ResourceFormatImporter::get_singleton()->add_importer(import_csv_translation);
@@ -5277,7 +5572,7 @@ EditorNode::EditorNode() {
 	scene_tabs->set_drag_to_rearrange_enabled(true);
 	scene_tabs->connect("tab_changed", this, "_scene_tab_changed");
 	scene_tabs->connect("right_button_pressed", this, "_scene_tab_script_edited");
-	scene_tabs->connect("tab_close", this, "_scene_tab_closed");
+	scene_tabs->connect("tab_close", this, "_scene_tab_closed", varray(SCENE_TAB_CLOSE));
 	scene_tabs->connect("tab_hover", this, "_scene_tab_hover");
 	scene_tabs->connect("mouse_exited", this, "_scene_tab_exit");
 	scene_tabs->connect("gui_input", this, "_scene_tab_input");
@@ -5377,8 +5672,11 @@ EditorNode::EditorNode() {
 	export_template_manager = memnew(ExportTemplateManager);
 	gui_base->add_child(export_template_manager);
 
+	feature_profile_manager = memnew(EditorFeatureProfileManager);
+	gui_base->add_child(feature_profile_manager);
 	about = memnew(EditorAbout);
 	gui_base->add_child(about);
+	feature_profile_manager->connect("current_feature_profile_changed", this, "_feature_profile_changed");
 
 	warning = memnew(AcceptDialog);
 	gui_base->add_child(warning);
@@ -5418,7 +5716,7 @@ EditorNode::EditorNode() {
 	p->add_shortcut(ED_SHORTCUT("editor/undo", TTR("Undo"), KEY_MASK_CMD + KEY_Z), EDIT_UNDO, true);
 	p->add_shortcut(ED_SHORTCUT("editor/redo", TTR("Redo"), KEY_MASK_SHIFT + KEY_MASK_CMD + KEY_Z), EDIT_REDO, true);
 	p->add_separator();
-	p->add_item(TTR("Revert Scene"), EDIT_REVERT);
+	p->add_shortcut(ED_SHORTCUT("editor/revert_scene", TTR("Revert Scene")), EDIT_REVERT);
 
 	recent_scenes = memnew(PopupMenu);
 	recent_scenes->set_name("RecentScenes");
@@ -5438,10 +5736,10 @@ EditorNode::EditorNode() {
 
 	p = project_menu->get_popup();
 	p->set_hide_on_window_lose_focus(true);
-	p->add_item(TTR("Project Settings"), RUN_SETTINGS);
+	p->add_shortcut(ED_SHORTCUT("editor/project_settings", TTR("Project Settings")), RUN_SETTINGS);
 	p->add_separator();
 	p->connect("id_pressed", this, "_menu_option");
-	p->add_item(TTR("Export"), FILE_EXPORT_PROJECT);
+	p->add_shortcut(ED_SHORTCUT("editor/export", TTR("Export")), FILE_EXPORT_PROJECT);
 
 	plugin_config_dialog = memnew(PluginConfigDialog);
 	plugin_config_dialog->connect("plugin_ready", this, "_on_plugin_ready");
@@ -5450,12 +5748,13 @@ EditorNode::EditorNode() {
 	tool_menu = memnew(PopupMenu);
 	tool_menu->set_name("Tools");
 	tool_menu->connect("index_pressed", this, "_tool_menu_option");
+	p->add_separator();
 	p->add_child(tool_menu);
 	p->add_submenu_item(TTR("Tools"), "Tools");
 	tool_menu->add_item(TTR("Orphan Resource Explorer"), TOOLS_ORPHAN_RESOURCES);
+	tool_menu->add_item(TTR("Open Project Data Folder"), RUN_PROJECT_DATA_FOLDER);
 	p->add_separator();
-
-	p->add_item(TTR("Open Project Data Folder"), RUN_PROJECT_DATA_FOLDER);
+	p->add_item(TTR("Install Android Build Template"), FILE_INSTALL_ANDROID_SOURCE);
 	p->add_separator();
 
 #ifdef OSX_ENABLED
@@ -5479,21 +5778,21 @@ EditorNode::EditorNode() {
 	p = debug_menu->get_popup();
 	p->set_hide_on_window_lose_focus(true);
 	p->set_hide_on_item_selection(false);
-	p->add_check_item(TTR("Deploy with Remote Debug"), RUN_DEPLOY_REMOTE_DEBUG);
+	p->add_check_shortcut(ED_SHORTCUT("editor/deploy_with_remote_debug", TTR("Deploy with Remote Debug")), RUN_DEPLOY_REMOTE_DEBUG);
 	p->set_item_tooltip(p->get_item_count() - 1, TTR("When exporting or deploying, the resulting executable will attempt to connect to the IP of this computer in order to be debugged."));
-	p->add_check_item(TTR("Small Deploy with Network FS"), RUN_FILE_SERVER);
+	p->add_check_shortcut(ED_SHORTCUT("editor/small_deploy_with_network_fs", TTR("Small Deploy with Network FS")), RUN_FILE_SERVER);
 	p->set_item_tooltip(p->get_item_count() - 1, TTR("When this option is enabled, export or deploy will produce a minimal executable.\nThe filesystem will be provided from the project by the editor over the network.\nOn Android, deploy will use the USB cable for faster performance. This option speeds up testing for games with a large footprint."));
 	p->add_separator();
-	p->add_check_item(TTR("Visible Collision Shapes"), RUN_DEBUG_COLLISONS);
+	p->add_check_shortcut(ED_SHORTCUT("editor/visible_collision_shapes", TTR("Visible Collision Shapes")), RUN_DEBUG_COLLISONS);
 	p->set_item_tooltip(p->get_item_count() - 1, TTR("Collision shapes and raycast nodes (for 2D and 3D) will be visible on the running game if this option is turned on."));
-	p->add_check_item(TTR("Visible Navigation"), RUN_DEBUG_NAVIGATION);
+	p->add_check_shortcut(ED_SHORTCUT("editor/visible_navigation", TTR("Visible Navigation")), RUN_DEBUG_NAVIGATION);
 	p->set_item_tooltip(p->get_item_count() - 1, TTR("Navigation meshes and polygons will be visible on the running game if this option is turned on."));
 	p->add_separator();
 	//those are now on by default, since they are harmless
-	p->add_check_item(TTR("Sync Scene Changes"), RUN_LIVE_DEBUG);
+	p->add_check_shortcut(ED_SHORTCUT("editor/sync_scene_changes", TTR("Sync Scene Changes")), RUN_LIVE_DEBUG);
 	p->set_item_tooltip(p->get_item_count() - 1, TTR("When this option is turned on, any changes made to the scene in the editor will be replicated in the running game.\nWhen used remotely on a device, this is more efficient with network filesystem."));
 	p->set_item_checked(p->get_item_count() - 1, true);
-	p->add_check_item(TTR("Sync Script Changes"), RUN_RELOAD_SCRIPTS);
+	p->add_check_shortcut(ED_SHORTCUT("editor/sync_script_changes", TTR("Sync Script Changes")), RUN_RELOAD_SCRIPTS);
 	p->set_item_tooltip(p->get_item_count() - 1, TTR("When this option is turned on, any script that is saved will be reloaded on the running game.\nWhen used remotely on a device, this is more efficient with network filesystem."));
 	p->set_item_checked(p->get_item_count() - 1, true);
 	p->connect("id_pressed", this, "_menu_option");
@@ -5509,7 +5808,7 @@ EditorNode::EditorNode() {
 
 	p = settings_menu->get_popup();
 	p->set_hide_on_window_lose_focus(true);
-	p->add_item(TTR("Editor Settings"), SETTINGS_PREFERENCES);
+	p->add_shortcut(ED_SHORTCUT("editor/editor_settings", TTR("Editor Settings")), SETTINGS_PREFERENCES);
 	p->add_separator();
 
 	editor_layouts = memnew(PopupMenu);
@@ -5534,6 +5833,10 @@ EditorNode::EditorNode() {
 	}
 	p->add_separator();
 
+	p->add_item(TTR("Manage Editor Features"), SETTINGS_MANAGE_FEATURE_PROFILES);
+
+	p->add_separator();
+
 	p->add_item(TTR("Manage Export Templates"), SETTINGS_MANAGE_EXPORT_TEMPLATES);
 
 	// Help Menu
@@ -5547,14 +5850,14 @@ EditorNode::EditorNode() {
 	p = help_menu->get_popup();
 	p->set_hide_on_window_lose_focus(true);
 	p->connect("id_pressed", this, "_menu_option");
-	p->add_icon_shortcut(gui_base->get_icon("HelpSearch", "EditorIcons"), ED_SHORTCUT("editor/editor_help", TTR("Search"), KEY_F4), HELP_SEARCH);
+	p->add_icon_shortcut(gui_base->get_icon("HelpSearch", "EditorIcons"), ED_SHORTCUT("editor/editor_help", TTR("Search"), KEY_MASK_SHIFT | KEY_F1), HELP_SEARCH);
 	p->add_separator();
-	p->add_icon_item(gui_base->get_icon("Instance", "EditorIcons"), TTR("Online Docs"), HELP_DOCS);
-	p->add_icon_item(gui_base->get_icon("Instance", "EditorIcons"), TTR("Q&A"), HELP_QA);
-	p->add_icon_item(gui_base->get_icon("Instance", "EditorIcons"), TTR("Issue Tracker"), HELP_ISSUES);
-	p->add_icon_item(gui_base->get_icon("Instance", "EditorIcons"), TTR("Community"), HELP_COMMUNITY);
+	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/online_docs", TTR("Online Docs")), HELP_DOCS);
+	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/q&a", TTR("Q&A")), HELP_QA);
+	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/issue_tracker", TTR("Issue Tracker")), HELP_ISSUES);
+	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/community", TTR("Community")), HELP_COMMUNITY);
 	p->add_separator();
-	p->add_icon_item(gui_base->get_icon("Godot", "EditorIcons"), TTR("About"), HELP_ABOUT);
+	p->add_icon_shortcut(gui_base->get_icon("Godot", "EditorIcons"), ED_SHORTCUT("editor/about", TTR("About")), HELP_ABOUT);
 
 	HBoxContainer *play_hb = memnew(HBoxContainer);
 	menu_hb->add_child(play_hb);
@@ -5695,6 +5998,7 @@ EditorNode::EditorNode() {
 
 	filesystem_dock = memnew(FileSystemDock(this));
 	filesystem_dock->connect("open", this, "open_request");
+	filesystem_dock->connect("inherit", this, "_inherit_request");
 	filesystem_dock->connect("instance", this, "_instance_request");
 	filesystem_dock->connect("display_mode_changed", this, "_save_docks");
 
@@ -5798,6 +6102,24 @@ EditorNode::EditorNode() {
 	save_confirmation->connect("confirmed", this, "_menu_confirm_current");
 	save_confirmation->connect("custom_action", this, "_discard_changes");
 
+	custom_build_manage_templates = memnew(ConfirmationDialog);
+	custom_build_manage_templates->set_text(TTR("Android build template is missing, please install relevant templates."));
+	custom_build_manage_templates->get_ok()->set_text(TTR("Manage Templates"));
+	custom_build_manage_templates->connect("confirmed", this, "_menu_option", varray(SETTINGS_MANAGE_EXPORT_TEMPLATES));
+	gui_base->add_child(custom_build_manage_templates);
+
+	install_android_build_template = memnew(ConfirmationDialog);
+	install_android_build_template->set_text(TTR("This will install the Android project for custom builds.\nNote that, in order to use it, it needs to be enabled per export preset."));
+	install_android_build_template->get_ok()->set_text(TTR("Install"));
+	install_android_build_template->connect("confirmed", this, "_menu_confirm_current");
+	gui_base->add_child(install_android_build_template);
+
+	remove_android_build_template = memnew(ConfirmationDialog);
+	remove_android_build_template->set_text(TTR("Android build template is already installed and it won't be overwritten.\nRemove the \"build\" directory manually before attempting this operation again."));
+	remove_android_build_template->get_ok()->set_text(TTR("Show in File Manager"));
+	remove_android_build_template->connect("confirmed", this, "_menu_option", varray(FILE_EXPLORE_ANDROID_BUILD_TEMPLATES));
+	gui_base->add_child(remove_android_build_template);
+
 	file_templates = memnew(EditorFileDialog);
 	file_templates->set_title(TTR("Import Templates From ZIP File"));
 
@@ -5895,6 +6217,7 @@ EditorNode::EditorNode() {
 	add_editor_plugin(memnew(SpriteEditorPlugin(this)));
 	add_editor_plugin(memnew(Skeleton2DEditorPlugin(this)));
 	add_editor_plugin(memnew(ParticlesEditorPlugin(this)));
+	add_editor_plugin(memnew(CPUParticles2DEditorPlugin(this)));
 	add_editor_plugin(memnew(CPUParticlesEditorPlugin(this)));
 	add_editor_plugin(memnew(ResourcePreloaderEditorPlugin(this)));
 	add_editor_plugin(memnew(ItemListEditorPlugin(this)));
@@ -6011,6 +6334,12 @@ EditorNode::EditorNode() {
 	load_error_dialog->set_title(TTR("Load Errors"));
 	gui_base->add_child(load_error_dialog);
 
+	execute_outputs = memnew(RichTextLabel);
+	execute_output_dialog = memnew(AcceptDialog);
+	execute_output_dialog->add_child(execute_outputs);
+	execute_output_dialog->set_title(TTR(""));
+	gui_base->add_child(execute_output_dialog);
+
 	EditorFileSystem::get_singleton()->connect("sources_changed", this, "_sources_changed");
 	EditorFileSystem::get_singleton()->connect("filesystem_changed", this, "_fs_changed");
 	EditorFileSystem::get_singleton()->connect("resources_reimported", this, "_resources_reimported");
diff --git a/editor/editor_node.h b/editor/editor_node.h
index 267c70c773..cfe8bf9ec4 100644
--- a/editor/editor_node.h
+++ b/editor/editor_node.h
@@ -38,6 +38,7 @@
 #include "editor/editor_about.h"
 #include "editor/editor_data.h"
 #include "editor/editor_export.h"
+#include "editor/editor_feature_profile.h"
 #include "editor/editor_folding.h"
 #include "editor/editor_inspector.h"
 #include "editor/editor_log.h"
@@ -84,7 +85,6 @@
 #include "scene/gui/tool_button.h"
 #include "scene/gui/tree.h"
 #include "scene/gui/viewport_container.h"
-
 /**
 	@author Juan Linietsky <reduzio@gmail.com>
 */
@@ -112,6 +112,16 @@ public:
 		DOCK_SLOT_MAX
 	};
 
+	struct ExecuteThreadArgs {
+		String path;
+		List<String> args;
+		String output;
+		Thread *execute_output_thread;
+		Mutex *execute_output_mutex;
+		int exitcode;
+		volatile bool done;
+	};
+
 private:
 	enum {
 		HISTORY_SIZE = 64
@@ -130,6 +140,8 @@ private:
 		FILE_IMPORT_SUBSCENE,
 		FILE_EXPORT_PROJECT,
 		FILE_EXPORT_MESH_LIBRARY,
+		FILE_INSTALL_ANDROID_SOURCE,
+		FILE_EXPLORE_ANDROID_BUILD_TEMPLATES,
 		FILE_EXPORT_TILESET,
 		FILE_SAVE_OPTIMIZED,
 		FILE_OPEN_RECENT,
@@ -138,6 +150,9 @@ private:
 		FILE_QUICK_OPEN_SCRIPT,
 		FILE_OPEN_PREV,
 		FILE_CLOSE,
+		FILE_CLOSE_OTHERS,
+		FILE_CLOSE_RIGHT,
+		FILE_CLOSE_ALL,
 		FILE_CLOSE_ALL_AND_QUIT,
 		FILE_CLOSE_ALL_AND_RUN_PROJECT_MANAGER,
 		FILE_QUIT,
@@ -175,6 +190,7 @@ private:
 		SETTINGS_EDITOR_DATA_FOLDER,
 		SETTINGS_EDITOR_CONFIG_FOLDER,
 		SETTINGS_MANAGE_EXPORT_TEMPLATES,
+		SETTINGS_MANAGE_FEATURE_PROFILES,
 		SETTINGS_PICK_MAIN_SCENE,
 		SETTINGS_TOGGLE_FULLSCREEN,
 		SETTINGS_HELP,
@@ -266,6 +282,9 @@ private:
 	RichTextLabel *load_errors;
 	AcceptDialog *load_error_dialog;
 
+	RichTextLabel *execute_outputs;
+	AcceptDialog *execute_output_dialog;
+
 	Ref<Theme> theme;
 
 	PopupMenu *recent_scenes;
@@ -289,11 +308,16 @@ private:
 	PopupMenu *editor_layouts;
 	EditorNameDialog *layout_dialog;
 
+	ConfirmationDialog *custom_build_manage_templates;
+	ConfirmationDialog *install_android_build_template;
+	ConfirmationDialog *remove_android_build_template;
+
 	EditorSettingsDialog *settings_config_dialog;
 	RunSettingsDialog *run_settings_dialog;
 	ProjectSettingsEditor *project_settings;
 	EditorFileDialog *file;
 	ExportTemplateManager *export_template_manager;
+	EditorFeatureProfileManager *feature_profile_manager;
 	EditorFileDialog *file_templates;
 	EditorFileDialog *file_export;
 	EditorFileDialog *file_export_lib;
@@ -450,6 +474,7 @@ private:
 	int _next_unsaved_scene(bool p_valid_filename, int p_start = 0);
 	void _discard_changes(const String &p_str = String());
 
+	void _inherit_request(String p_file);
 	void _instance_request(const Vector<String> &p_files);
 
 	void _display_top_editors(bool p_display);
@@ -468,6 +493,7 @@ private:
 	void _update_recent_scenes();
 	void _open_recent_scene(int p_idx);
 	void _dropped_files(const Vector<String> &p_files, int p_screen);
+	void _add_dropped_files_recursive(const Vector<String> &p_files, String to_path);
 	String _recent_scene;
 
 	void _exit_editor();
@@ -541,7 +567,7 @@ private:
 	void _dock_split_dragged(int ofs);
 	void _dock_popup_exit();
 	void _scene_tab_changed(int p_tab);
-	void _scene_tab_closed(int p_tab);
+	void _scene_tab_closed(int p_tab, int option = SCENE_TAB_CLOSE);
 	void _scene_tab_hover(int p_tab);
 	void _scene_tab_exit();
 	void _scene_tab_input(const Ref<InputEvent> &p_input);
@@ -610,6 +636,9 @@ private:
 
 	void _resources_changed(const PoolVector<String> &p_resources);
 
+	void _feature_profile_changed();
+	bool _is_class_editor_disabled_by_feature_profile(const StringName &p_class);
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
@@ -794,6 +823,8 @@ public:
 	void update_keying() const { inspector_dock->update_keying(); };
 	bool has_scenes_in_session();
 
+	int execute_and_show_output(const String &p_title, const String &p_path, const List<String> &p_arguments, bool p_close_on_ok = true, bool p_close_on_errors = false);
+
 	EditorNode();
 	~EditorNode();
 	void get_singleton(const char *arg1, bool arg2);
diff --git a/editor/editor_path.cpp b/editor/editor_path.cpp
index 7e9d3a889e..12510e27de 100644
--- a/editor/editor_path.cpp
+++ b/editor/editor_path.cpp
@@ -56,122 +56,67 @@ void EditorPath::_add_children_to_popup(Object *p_obj, int p_depth) {
 
 		Ref<Texture> icon = EditorNode::get_singleton()->get_object_icon(obj);
 
-		int index = popup->get_item_count();
-		popup->add_icon_item(icon, E->get().name.capitalize(), objects.size());
-		popup->set_item_h_offset(index, p_depth * 10 * EDSCALE);
+		int index = get_popup()->get_item_count();
+		get_popup()->add_icon_item(icon, E->get().name.capitalize(), objects.size());
+		get_popup()->set_item_h_offset(index, p_depth * 10 * EDSCALE);
 		objects.push_back(obj->get_instance_id());
 
 		_add_children_to_popup(obj, p_depth + 1);
 	}
 }
 
-void EditorPath::_gui_input(const Ref<InputEvent> &p_event) {
+void EditorPath::_about_to_show() {
 
-	Ref<InputEventMouseButton> mb = p_event;
-	if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT && mb->is_pressed()) {
-
-		Object *obj = ObjectDB::get_instance(history->get_path_object(history->get_path_size() - 1));
-		if (!obj)
-			return;
-
-		objects.clear();
-		popup->clear();
-		_add_children_to_popup(obj);
-		popup->set_position(get_global_position() + Vector2(0, get_size().height));
-		popup->set_size(Size2(get_size().width, 1));
-		popup->popup();
-	}
-}
+	Object *obj = ObjectDB::get_instance(history->get_path_object(history->get_path_size() - 1));
+	if (!obj)
+		return;
 
-void EditorPath::_notification(int p_what) {
-
-	switch (p_what) {
-
-		case NOTIFICATION_MOUSE_ENTER: {
-			mouse_over = true;
-			update();
-		} break;
-		case NOTIFICATION_MOUSE_EXIT: {
-			mouse_over = false;
-			update();
-		} break;
-		case NOTIFICATION_DRAW: {
-
-			RID ci = get_canvas_item();
-			Ref<Font> label_font = get_font("font", "Label");
-			Size2i size = get_size();
-			Ref<Texture> sn = get_icon("SmallNext", "EditorIcons");
-			Ref<StyleBox> sb = get_stylebox("pressed", "Button");
-
-			int ofs = sb->get_margin(MARGIN_LEFT);
-
-			if (mouse_over) {
-				draw_style_box(sb, Rect2(Point2(), get_size()));
-			}
-
-			for (int i = 0; i < history->get_path_size(); i++) {
-
-				Object *obj = ObjectDB::get_instance(history->get_path_object(i));
-				if (!obj)
-					continue;
-
-				String type = obj->get_class();
-
-				Ref<Texture> icon = EditorNode::get_singleton()->get_object_icon(obj);
-
-				if (icon.is_valid()) {
-					icon->draw(ci, Point2i(ofs, (size.height - icon->get_height()) / 2));
-					ofs += icon->get_width();
-				}
-
-				if (i == history->get_path_size() - 1) {
-					//add name
-					ofs += 4;
-					int left = size.width - ofs;
-					if (left < 0)
-						continue;
-					String name;
-					if (Object::cast_to<Resource>(obj)) {
-
-						Resource *r = Object::cast_to<Resource>(obj);
-						if (r->get_path().is_resource_file())
-							name = r->get_path().get_file();
-						else
-							name = r->get_name();
-
-						if (name == "")
-							name = r->get_class();
-					} else if (obj->is_class("ScriptEditorDebuggerInspectedObject"))
-						name = obj->call("get_title");
-					else if (Object::cast_to<Node>(obj))
-						name = Object::cast_to<Node>(obj)->get_name();
-					else if (Object::cast_to<Resource>(obj) && Object::cast_to<Resource>(obj)->get_name() != "")
-						name = Object::cast_to<Resource>(obj)->get_name();
-					else
-						name = obj->get_class();
-
-					set_tooltip(obj->get_class());
-
-					label_font->draw(ci, Point2i(ofs, (size.height - label_font->get_height()) / 2 + label_font->get_ascent()), name, get_color("font_color", "Label"), left);
-				} else {
-					//add arrow
-
-					//sn->draw(ci,Point2i(ofs,(size.height-sn->get_height())/2));
-					//ofs+=sn->get_width();
-					ofs += 5; //just looks better! somehow
-				}
-			}
-
-		} break;
-	}
+	objects.clear();
+	get_popup()->clear();
+	get_popup()->set_size(Size2(get_size().width, 1));
+	_add_children_to_popup(obj);
 }
 
 void EditorPath::update_path() {
 
-	update();
+	for (int i = 0; i < history->get_path_size(); i++) {
+
+		Object *obj = ObjectDB::get_instance(history->get_path_object(i));
+		if (!obj)
+			continue;
+
+		Ref<Texture> icon = EditorNode::get_singleton()->get_object_icon(obj);
+		if (icon.is_valid())
+			set_icon(icon);
+
+		if (i == history->get_path_size() - 1) {
+			String name;
+			if (Object::cast_to<Resource>(obj)) {
+
+				Resource *r = Object::cast_to<Resource>(obj);
+				if (r->get_path().is_resource_file())
+					name = r->get_path().get_file();
+				else
+					name = r->get_name();
+
+				if (name == "")
+					name = r->get_class();
+			} else if (obj->is_class("ScriptEditorDebuggerInspectedObject"))
+				name = obj->call("get_title");
+			else if (Object::cast_to<Node>(obj))
+				name = Object::cast_to<Node>(obj)->get_name();
+			else if (Object::cast_to<Resource>(obj) && Object::cast_to<Resource>(obj)->get_name() != "")
+				name = Object::cast_to<Resource>(obj)->get_name();
+			else
+				name = obj->get_class();
+
+			set_text(" " + name); // An extra space so the text is not too close of the icon.
+			set_tooltip(obj->get_class());
+		}
+	}
 }
 
-void EditorPath::_popup_select(int p_idx) {
+void EditorPath::_id_pressed(int p_idx) {
 
 	ERR_FAIL_INDEX(p_idx, objects.size());
 
@@ -184,15 +129,14 @@ void EditorPath::_popup_select(int p_idx) {
 
 void EditorPath::_bind_methods() {
 
-	ClassDB::bind_method("_gui_input", &EditorPath::_gui_input);
-	ClassDB::bind_method("_popup_select", &EditorPath::_popup_select);
+	ClassDB::bind_method("_about_to_show", &EditorPath::_about_to_show);
+	ClassDB::bind_method("_id_pressed", &EditorPath::_id_pressed);
 }
 
 EditorPath::EditorPath(EditorHistory *p_history) {
 
 	history = p_history;
-	mouse_over = false;
-	popup = memnew(PopupMenu);
-	popup->connect("id_pressed", this, "_popup_select");
-	add_child(popup);
+	set_text_align(ALIGN_LEFT);
+	get_popup()->connect("about_to_show", this, "_about_to_show");
+	get_popup()->connect("id_pressed", this, "_id_pressed");
 }
diff --git a/editor/editor_path.h b/editor/editor_path.h
index e12ca02534..2dc4d21f9b 100644
--- a/editor/editor_path.h
+++ b/editor/editor_path.h
@@ -32,27 +32,23 @@
 #define EDITOR_PATH_H
 
 #include "editor_data.h"
-#include "scene/gui/control.h"
-#include "scene/gui/popup_menu.h"
+#include "scene/gui/menu_button.h"
 
-class EditorPath : public Control {
+class EditorPath : public MenuButton {
 
-	GDCLASS(EditorPath, Control);
+	GDCLASS(EditorPath, MenuButton);
 
 	EditorHistory *history;
 
 	Vector<ObjectID> objects;
-	PopupMenu *popup;
-	bool mouse_over;
 	EditorPath();
 
-	void _popup_select(int p_idx);
-	void _gui_input(const Ref<InputEvent> &p_event);
+	void _id_pressed(int p_idx);
+	void _about_to_show();
 	void _add_children_to_popup(Object *p_obj, int p_depth = 0);
 
 protected:
 	static void _bind_methods();
-	void _notification(int p_what);
 
 public:
 	void update_path();
diff --git a/editor/editor_plugin.cpp b/editor/editor_plugin.cpp
index c2493729a3..8af4ee8017 100644
--- a/editor/editor_plugin.cpp
+++ b/editor/editor_plugin.cpp
@@ -240,6 +240,10 @@ bool EditorInterface::is_plugin_enabled(const String &p_plugin) const {
 	return EditorNode::get_singleton()->is_addon_plugin_enabled(p_plugin);
 }
 
+EditorInspector *EditorInterface::get_inspector() const {
+	return EditorNode::get_singleton()->get_inspector();
+}
+
 Error EditorInterface::save_scene() {
 	if (!get_edited_scene_root())
 		return ERR_CANT_CREATE;
@@ -279,6 +283,8 @@ void EditorInterface::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_plugin_enabled", "plugin", "enabled"), &EditorInterface::set_plugin_enabled);
 	ClassDB::bind_method(D_METHOD("is_plugin_enabled", "plugin"), &EditorInterface::is_plugin_enabled);
 
+	ClassDB::bind_method(D_METHOD("get_inspector"), &EditorInterface::get_inspector);
+
 	ClassDB::bind_method(D_METHOD("save_scene"), &EditorInterface::save_scene);
 	ClassDB::bind_method(D_METHOD("save_scene_as", "path", "with_preview"), &EditorInterface::save_scene_as, DEFVAL(true));
 }
diff --git a/editor/editor_plugin.h b/editor/editor_plugin.h
index 3e41bb5612..2fcc487377 100644
--- a/editor/editor_plugin.h
+++ b/editor/editor_plugin.h
@@ -95,6 +95,8 @@ public:
 	void set_plugin_enabled(const String &p_plugin, bool p_enabled);
 	bool is_plugin_enabled(const String &p_plugin) const;
 
+	EditorInspector *get_inspector() const;
+
 	Error save_scene();
 	void save_scene_as(const String &p_scene, bool p_with_preview = true);
 
diff --git a/editor/editor_profiler.cpp b/editor/editor_profiler.cpp
index dee589ad3f..f73cd0beb5 100644
--- a/editor/editor_profiler.cpp
+++ b/editor/editor_profiler.cpp
@@ -625,6 +625,63 @@ bool EditorProfiler::is_profiling() {
 	return activate->is_pressed();
 }
 
+Vector<Vector<String> > EditorProfiler::get_data_as_csv() const {
+	Vector<Vector<String> > res;
+
+	if (frame_metrics.empty()) {
+		return res;
+	}
+
+	// signatures
+	Vector<String> signatures;
+	const Vector<EditorProfiler::Metric::Category> &categories = frame_metrics[0].categories;
+
+	for (int j = 0; j < categories.size(); j++) {
+
+		const EditorProfiler::Metric::Category &c = categories[j];
+		signatures.push_back(c.signature);
+
+		for (int k = 0; k < c.items.size(); k++) {
+			signatures.push_back(c.items[k].signature);
+		}
+	}
+	res.push_back(signatures);
+
+	// values
+	Vector<String> values;
+	values.resize(signatures.size());
+
+	int index = last_metric;
+
+	for (int i = 0; i < frame_metrics.size(); i++) {
+
+		++index;
+
+		if (index >= frame_metrics.size()) {
+			index = 0;
+		}
+
+		if (!frame_metrics[index].valid) {
+			continue;
+		}
+		int it = 0;
+		const Vector<EditorProfiler::Metric::Category> &frame_cat = frame_metrics[index].categories;
+
+		for (int j = 0; j < frame_cat.size(); j++) {
+
+			const EditorProfiler::Metric::Category &c = frame_cat[j];
+			values.write[it++] = String::num_real(c.total_time);
+
+			for (int k = 0; k < c.items.size(); k++) {
+				values.write[it++] = String::num_real(c.items[k].total);
+			}
+		}
+		res.push_back(values);
+	}
+
+	return res;
+}
+
 EditorProfiler::EditorProfiler() {
 
 	HBoxContainer *hb = memnew(HBoxContainer);
diff --git a/editor/editor_profiler.h b/editor/editor_profiler.h
index 8fa09f8494..e62213887d 100644
--- a/editor/editor_profiler.h
+++ b/editor/editor_profiler.h
@@ -169,6 +169,8 @@ public:
 
 	void clear();
 
+	Vector<Vector<String> > get_data_as_csv() const;
+
 	EditorProfiler();
 };
 
diff --git a/editor/editor_properties.cpp b/editor/editor_properties.cpp
index 2d0d212af9..45acd1b6d4 100644
--- a/editor/editor_properties.cpp
+++ b/editor/editor_properties.cpp
@@ -786,6 +786,7 @@ EditorPropertyLayers::EditorPropertyLayers() {
 	grid->set_h_size_flags(SIZE_EXPAND_FILL);
 	hb->add_child(grid);
 	button = memnew(Button);
+	button->set_toggle_mode(true);
 	button->set_text("..");
 	button->connect("pressed", this, "_button_pressed");
 	hb->add_child(button);
@@ -794,6 +795,7 @@ EditorPropertyLayers::EditorPropertyLayers() {
 	add_child(layers);
 	layers->set_hide_on_checkable_item_selection(false);
 	layers->connect("id_pressed", this, "_menu_pressed");
+	layers->connect("popup_hide", button, "set_pressed", varray(false));
 }
 
 ///////////////////// INT /////////////////////////
@@ -2289,6 +2291,16 @@ void EditorPropertyResource::_update_menu_items() {
 				E = E->next();
 			}
 
+			List<StringName> global_classes;
+			ScriptServer::get_global_class_list(&global_classes);
+			E = global_classes.front();
+			while (E) {
+				if (EditorNode::get_editor_data().script_class_is_parent(E->get(), base_type)) {
+					valid_inheritors.insert(E->get());
+				}
+				E = E->next();
+			}
+
 			for (Set<String>::Element *F = valid_inheritors.front(); F; F = F->next()) {
 				String t = F->get();
 
@@ -2305,7 +2317,7 @@ void EditorPropertyResource::_update_menu_items() {
 					}
 				}
 
-				if (!is_custom_resource && !ClassDB::can_instance(t))
+				if (!is_custom_resource && !(ScriptServer::is_global_class(t) || ClassDB::can_instance(t)))
 					continue;
 
 				inheritors_array.push_back(t);
@@ -2542,6 +2554,7 @@ void EditorPropertyResource::update_property() {
 				sub_inspector->edit(res.ptr());
 			}
 
+			sub_inspector->refresh();
 		} else {
 			if (sub_inspector) {
 				set_bottom_editor(NULL);
@@ -2587,6 +2600,7 @@ void EditorPropertyResource::_resource_selected() {
 	RES res = get_edited_object()->get(get_edited_property());
 
 	if (res.is_null()) {
+		edit->set_pressed(true);
 		_update_menu();
 		return;
 	}
@@ -2807,7 +2821,9 @@ EditorPropertyResource::EditorPropertyResource() {
 	add_child(menu);
 	edit = memnew(Button);
 	edit->set_flat(true);
+	edit->set_toggle_mode(true);
 	menu->connect("id_pressed", this, "_menu_option");
+	menu->connect("popup_hide", edit, "set_pressed", varray(false));
 	edit->connect("pressed", this, "_update_menu");
 	hbc->add_child(edit);
 	edit->connect("gui_input", this, "_button_input");
@@ -2872,7 +2888,8 @@ bool EditorInspectorDefaultPlugin::parse_property(Object *p_object, Variant::Typ
 					case PROPERTY_HINT_LAYERS_3D_PHYSICS:
 						lt = EditorPropertyLayers::LAYER_PHYSICS_3D;
 						break;
-					default: {} //compiler could be smarter here and realize this can't happen
+					default: {
+					} //compiler could be smarter here and realize this can't happen
 				}
 				EditorPropertyLayers *editor = memnew(EditorPropertyLayers);
 				editor->setup(lt);
@@ -2981,13 +2998,17 @@ bool EditorInspectorDefaultPlugin::parse_property(Object *p_object, Variant::Typ
 				EditorPropertyClassName *editor = memnew(EditorPropertyClassName);
 				editor->setup("Object", p_hint_text);
 				add_property_editor(p_path, editor);
-			} else if (p_hint == PROPERTY_HINT_DIR || p_hint == PROPERTY_HINT_FILE || p_hint == PROPERTY_HINT_GLOBAL_DIR || p_hint == PROPERTY_HINT_GLOBAL_FILE) {
+			} else if (p_hint == PROPERTY_HINT_DIR || p_hint == PROPERTY_HINT_FILE || p_hint == PROPERTY_HINT_SAVE_FILE || p_hint == PROPERTY_HINT_GLOBAL_DIR || p_hint == PROPERTY_HINT_GLOBAL_FILE) {
 
 				Vector<String> extensions = p_hint_text.split(",");
 				bool global = p_hint == PROPERTY_HINT_GLOBAL_DIR || p_hint == PROPERTY_HINT_GLOBAL_FILE;
 				bool folder = p_hint == PROPERTY_HINT_DIR || p_hint == PROPERTY_HINT_GLOBAL_DIR;
+				bool save = p_hint == PROPERTY_HINT_SAVE_FILE;
 				EditorPropertyPath *editor = memnew(EditorPropertyPath);
 				editor->setup(extensions, folder, global);
+				if (save) {
+					editor->set_save_mode();
+				}
 				add_property_editor(p_path, editor);
 			} else if (p_hint == PROPERTY_HINT_METHOD_OF_VARIANT_TYPE ||
 					   p_hint == PROPERTY_HINT_METHOD_OF_BASE_TYPE ||
@@ -3009,7 +3030,8 @@ bool EditorInspectorDefaultPlugin::parse_property(Object *p_object, Variant::Typ
 					case PROPERTY_HINT_PROPERTY_OF_BASE_TYPE: type = EditorPropertyMember::MEMBER_PROPERTY_OF_BASE_TYPE; break;
 					case PROPERTY_HINT_PROPERTY_OF_INSTANCE: type = EditorPropertyMember::MEMBER_PROPERTY_OF_INSTANCE; break;
 					case PROPERTY_HINT_PROPERTY_OF_SCRIPT: type = EditorPropertyMember::MEMBER_PROPERTY_OF_SCRIPT; break;
-					default: {}
+					default: {
+					}
 				}
 				editor->setup(type, p_hint_text);
 				add_property_editor(p_path, editor);
@@ -3273,7 +3295,8 @@ bool EditorInspectorDefaultPlugin::parse_property(Object *p_object, Variant::Typ
 			editor->setup(Variant::POOL_COLOR_ARRAY);
 			add_property_editor(p_path, editor);
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return false; //can be overridden, although it will most likely be last anyway
diff --git a/editor/editor_properties_array_dict.cpp b/editor/editor_properties_array_dict.cpp
index 0f6c6349ed..e3dc517a39 100644
--- a/editor/editor_properties_array_dict.cpp
+++ b/editor/editor_properties_array_dict.cpp
@@ -251,7 +251,8 @@ void EditorPropertyArray::update_property() {
 		case Variant::POOL_COLOR_ARRAY: {
 			arrtype = "PoolColorArray";
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (array.get_type() == Variant::NIL) {
@@ -862,7 +863,8 @@ void EditorPropertyDictionary::update_property() {
 					editor->setup(Variant::POOL_COLOR_ARRAY);
 					prop = editor;
 				} break;
-				default: {}
+				default: {
+				}
 			}
 
 			if (i == amount) {
diff --git a/editor/editor_run_native.cpp b/editor/editor_run_native.cpp
index 06cadca1c0..b73cda6008 100644
--- a/editor/editor_run_native.cpp
+++ b/editor/editor_run_native.cpp
@@ -56,7 +56,7 @@ void EditorRunNative::_notification(int p_what) {
 					small_icon->create_from_image(im, 0);
 					MenuButton *mb = memnew(MenuButton);
 					mb->get_popup()->connect("id_pressed", this, "_run_native", varray(i));
-					//mb->connect("pressed", this, "_run_native", varray(-1, i));
+					mb->connect("pressed", this, "_run_native", varray(-1, i));
 					mb->set_icon(small_icon);
 					add_child(mb);
 					menus[i] = mb;
@@ -82,10 +82,14 @@ void EditorRunNative::_notification(int p_what) {
 				} else {
 					mb->get_popup()->clear();
 					mb->show();
-					mb->set_tooltip(TTR("Select device from the list"));
-					for (int i = 0; i < dc; i++) {
-						mb->get_popup()->add_icon_item(get_icon("Play", "EditorIcons"), eep->get_device_name(i));
-						mb->get_popup()->set_item_tooltip(mb->get_popup()->get_item_count() - 1, eep->get_device_info(i).strip_edges());
+					if (dc == 1) {
+						mb->set_tooltip(eep->get_device_name(0) + "\n\n" + eep->get_device_info(0).strip_edges());
+					} else {
+						mb->set_tooltip("Select device from the list");
+						for (int i = 0; i < dc; i++) {
+							mb->get_popup()->add_icon_item(get_icon("Play", "EditorIcons"), eep->get_device_name(i));
+							mb->get_popup()->set_item_tooltip(mb->get_popup()->get_item_count() - 1, eep->get_device_info(i).strip_edges());
+						}
 					}
 				}
 			}
@@ -99,14 +103,15 @@ void EditorRunNative::_run_native(int p_idx, int p_platform) {
 
 	Ref<EditorExportPlatform> eep = EditorExport::get_singleton()->get_export_platform(p_platform);
 	ERR_FAIL_COND(eep.is_null());
-	/*if (p_idx == -1) {
+
+	if (p_idx == -1) {
 		if (eep->get_device_count() == 1) {
 			menus[p_platform]->get_popup()->hide();
 			p_idx = 0;
 		} else {
 			return;
 		}
-	}*/
+	}
 
 	Ref<EditorExportPreset> preset;
 
diff --git a/editor/editor_settings.cpp b/editor/editor_settings.cpp
index 40304b9975..c32dcb0ace 100644
--- a/editor/editor_settings.cpp
+++ b/editor/editor_settings.cpp
@@ -407,7 +407,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	_initial_set("text_editor/theme/color_theme", "Adaptive");
 	hints["text_editor/theme/color_theme"] = PropertyInfo(Variant::STRING, "text_editor/theme/color_theme", PROPERTY_HINT_ENUM, "Adaptive,Default,Custom");
 	_initial_set("text_editor/theme/line_spacing", 6);
-	_initial_set("text_editor/theme/selection_color", Color::html("40808080"));
+	hints["text_editor/theme/line_spacing"] = PropertyInfo(Variant::INT, "text_editor/theme/line_spacing", PROPERTY_HINT_RANGE, "0,50,1");
 
 	_load_default_text_editor_theme();
 
@@ -430,6 +430,7 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	_initial_set("text_editor/line_numbers/show_line_numbers", true);
 	_initial_set("text_editor/line_numbers/line_numbers_zero_padded", false);
 	_initial_set("text_editor/line_numbers/show_breakpoint_gutter", true);
+	_initial_set("text_editor/line_numbers/show_info_gutter", true);
 	_initial_set("text_editor/line_numbers/code_folding", true);
 	_initial_set("text_editor/line_numbers/word_wrap", false);
 	_initial_set("text_editor/line_numbers/show_line_length_guideline", false);
@@ -459,12 +460,14 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	_initial_set("text_editor/cursor/right_click_moves_caret", true);
 
 	// Completion
-	_initial_set("text_editor/completion/idle_parse_delay", 2);
+	_initial_set("text_editor/completion/idle_parse_delay", 2.0);
+	hints["text_editor/completion/idle_parse_delay"] = PropertyInfo(Variant::REAL, "text_editor/completion/idle_parse_delay", PROPERTY_HINT_RANGE, "0.1, 10, 0.01");
 	_initial_set("text_editor/completion/auto_brace_complete", false);
 	_initial_set("text_editor/completion/put_callhint_tooltip_below_current_line", true);
 	_initial_set("text_editor/completion/callhint_tooltip_offset", Vector2());
 	_initial_set("text_editor/completion/complete_file_paths", true);
 	_initial_set("text_editor/completion/add_type_hints", false);
+	_initial_set("text_editor/completion/use_single_quotes", false);
 
 	// Help
 	_initial_set("text_editor/help/show_help_index", true);
@@ -635,7 +638,7 @@ void EditorSettings::_load_default_text_editor_theme() {
 	_initial_set("text_editor/highlighting/caret_color", Color::html("aaaaaa"));
 	_initial_set("text_editor/highlighting/caret_background_color", Color::html("000000"));
 	_initial_set("text_editor/highlighting/text_selected_color", Color::html("000000"));
-	_initial_set("text_editor/highlighting/selection_color", Color::html("6ca9c2"));
+	_initial_set("text_editor/highlighting/selection_color", Color::html("5a699ce8"));
 	_initial_set("text_editor/highlighting/brace_mismatch_color", Color(1, 0.2, 0.2));
 	_initial_set("text_editor/highlighting/current_line_color", Color(0.3, 0.5, 0.8, 0.15));
 	_initial_set("text_editor/highlighting/line_length_guideline_color", Color(0.3, 0.5, 0.8, 0.1));
@@ -645,6 +648,7 @@ void EditorSettings::_load_default_text_editor_theme() {
 	_initial_set("text_editor/highlighting/member_variable_color", Color::html("e64e59"));
 	_initial_set("text_editor/highlighting/mark_color", Color(1.0, 0.4, 0.4, 0.4));
 	_initial_set("text_editor/highlighting/breakpoint_color", Color(0.8, 0.8, 0.4, 0.2));
+	_initial_set("text_editor/highlighting/executing_line_color", Color(0.2, 0.8, 0.2, 0.4));
 	_initial_set("text_editor/highlighting/code_folding_color", Color(0.8, 0.8, 0.8, 0.8));
 	_initial_set("text_editor/highlighting/search_result_color", Color(0.05, 0.25, 0.05, 1));
 	_initial_set("text_editor/highlighting/search_result_border_color", Color(0.1, 0.45, 0.1, 1));
@@ -676,14 +680,14 @@ bool EditorSettings::_save_text_editor_theme(String p_file) {
 static Dictionary _get_builtin_script_templates() {
 	Dictionary templates;
 
-	//No Comments
+	// No Comments
 	templates["no_comments.gd"] =
 			"extends %BASE%\n"
 			"\n"
-			"func _ready():\n"
+			"func _ready()%VOID_RETURN%:\n"
 			"%TS%pass\n";
 
-	//Empty
+	// Empty
 	templates["empty.gd"] =
 			"extends %BASE%"
 			"\n"
@@ -833,6 +837,13 @@ void EditorSettings::create() {
 		} else {
 			dir->change_dir("..");
 		}
+
+		if (dir->change_dir("feature_profiles") != OK) {
+			dir->make_dir("feature_profiles");
+		} else {
+			dir->change_dir("..");
+		}
+
 		_create_script_templates(dir->get_current_dir().plus_file("script_templates"));
 
 		if (dir->change_dir("projects") != OK) {
@@ -1161,6 +1172,11 @@ String EditorSettings::get_cache_dir() const {
 	return cache_dir;
 }
 
+String EditorSettings::get_feature_profiles_dir() const {
+
+	return get_settings_dir().plus_file("feature_profiles");
+}
+
 // Metadata
 
 void EditorSettings::set_project_metadata(const String &p_section, const String &p_key, Variant p_data) {
diff --git a/editor/editor_settings.h b/editor/editor_settings.h
index 1b44c15c54..43a8cbf739 100644
--- a/editor/editor_settings.h
+++ b/editor/editor_settings.h
@@ -169,6 +169,7 @@ public:
 	String get_text_editor_themes_dir() const;
 	String get_script_templates_dir() const;
 	String get_cache_dir() const;
+	String get_feature_profiles_dir() const;
 
 	void set_project_metadata(const String &p_section, const String &p_key, Variant p_data);
 	Variant get_project_metadata(const String &p_section, const String &p_key, Variant p_default) const;
diff --git a/editor/editor_sub_scene.cpp b/editor/editor_sub_scene.cpp
index e4807a37c6..987033b123 100644
--- a/editor/editor_sub_scene.cpp
+++ b/editor/editor_sub_scene.cpp
@@ -73,8 +73,8 @@ void EditorSubScene::_notification(int p_what) {
 
 	if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
 
-		if (!is_visible_in_tree()) {
-		}
+		if (is_visible() && scene == NULL)
+			_path_browse();
 	}
 }
 
@@ -232,7 +232,7 @@ EditorSubScene::EditorSubScene() {
 	hb->add_child(path);
 	path->set_h_size_flags(SIZE_EXPAND_FILL);
 	Button *b = memnew(Button);
-	b->set_text(" .. ");
+	b->set_text(TTR("Browse"));
 	hb->add_child(b);
 	b->connect("pressed", this, "_path_browse");
 	vb->add_margin_child(TTR("Scene Path:"), hb);
diff --git a/editor/editor_themes.cpp b/editor/editor_themes.cpp
index c05db2571b..f74e913208 100644
--- a/editor/editor_themes.cpp
+++ b/editor/editor_themes.cpp
@@ -204,7 +204,7 @@ void editor_register_and_generate_icons(Ref<Theme> p_theme, bool p_dark_theme =
 		}
 
 	// generate thumb files with the given thumb size
-	bool force_filter = !(p_thumb_size == 64 && p_thumb_size == 32); // we don't need filter with original resolution
+	bool force_filter = p_thumb_size != 64 && p_thumb_size != 32; // we don't need filter with original resolution
 	if (p_thumb_size >= 64) {
 		float scale = (float)p_thumb_size / 64.0 * EDSCALE;
 		for (int i = 0; i < editor_bg_thumbs_count; i++) {
@@ -329,7 +329,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	const Color font_color = mono_color.linear_interpolate(base_color, 0.25);
 	const Color font_color_hl = mono_color.linear_interpolate(base_color, 0.15);
 	const Color font_color_disabled = Color(mono_color.r, mono_color.g, mono_color.b, 0.3);
-	const Color font_color_selection = Color::html("#7d7d7d");
+	const Color font_color_selection = accent_color * Color(1, 1, 1, 0.4);
 	const Color color_disabled = mono_color.inverted().linear_interpolate(base_color, 0.7);
 	const Color color_disabled_bg = mono_color.inverted().linear_interpolate(base_color, 0.9);
 
@@ -403,7 +403,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	// this is the most commonly used stylebox, variations should be made as duplicate of this
 	Ref<StyleBoxFlat> style_default = make_flat_stylebox(base_color, default_margin_size, default_margin_size, default_margin_size, default_margin_size);
 	style_default->set_border_width_all(border_width);
-	style_default->set_border_color_all(base_color);
+	style_default->set_border_color(base_color);
 	style_default->set_draw_center(true);
 
 	// Button and widgets
@@ -415,20 +415,20 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	style_widget->set_default_margin(MARGIN_RIGHT, (extra_spacing + 6) * EDSCALE);
 	style_widget->set_default_margin(MARGIN_BOTTOM, (extra_spacing + default_margin_size) * EDSCALE);
 	style_widget->set_bg_color(dark_color_1);
-	style_widget->set_border_color_all(dark_color_2);
+	style_widget->set_border_color(dark_color_2);
 
 	Ref<StyleBoxFlat> style_widget_disabled = style_widget->duplicate();
-	style_widget_disabled->set_border_color_all(color_disabled);
+	style_widget_disabled->set_border_color(color_disabled);
 	style_widget_disabled->set_bg_color(color_disabled_bg);
 
 	Ref<StyleBoxFlat> style_widget_focus = style_widget->duplicate();
-	style_widget_focus->set_border_color_all(accent_color);
+	style_widget_focus->set_border_color(accent_color);
 
 	Ref<StyleBoxFlat> style_widget_pressed = style_widget->duplicate();
-	style_widget_pressed->set_border_color_all(accent_color);
+	style_widget_pressed->set_border_color(accent_color);
 
 	Ref<StyleBoxFlat> style_widget_hover = style_widget->duplicate();
-	style_widget_hover->set_border_color_all(contrast_color_1);
+	style_widget_hover->set_border_color(contrast_color_1);
 
 	// style for windows, popups, etc..
 	Ref<StyleBoxFlat> style_popup = style_default->duplicate();
@@ -437,7 +437,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	style_popup->set_default_margin(MARGIN_TOP, popup_margin_size);
 	style_popup->set_default_margin(MARGIN_RIGHT, popup_margin_size);
 	style_popup->set_default_margin(MARGIN_BOTTOM, popup_margin_size);
-	style_popup->set_border_color_all(contrast_color_1);
+	style_popup->set_border_color(contrast_color_1);
 	style_popup->set_border_width_all(MAX(EDSCALE, border_width));
 	const Color shadow_color = Color(0, 0, 0, dark_theme ? 0.3 : 0.1);
 	style_popup->set_shadow_color(shadow_color);
@@ -470,7 +470,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 
 	style_tab_selected->set_border_width_all(border_width);
 	style_tab_selected->set_border_width(MARGIN_BOTTOM, 0);
-	style_tab_selected->set_border_color_all(dark_color_3);
+	style_tab_selected->set_border_color(dark_color_3);
 	style_tab_selected->set_expand_margin_size(MARGIN_BOTTOM, border_width);
 	style_tab_selected->set_default_margin(MARGIN_LEFT, tab_default_margin_side);
 	style_tab_selected->set_default_margin(MARGIN_RIGHT, tab_default_margin_side);
@@ -480,11 +480,11 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 
 	Ref<StyleBoxFlat> style_tab_unselected = style_tab_selected->duplicate();
 	style_tab_unselected->set_bg_color(dark_color_1);
-	style_tab_unselected->set_border_color_all(dark_color_2);
+	style_tab_unselected->set_border_color(dark_color_2);
 
 	Ref<StyleBoxFlat> style_tab_disabled = style_tab_selected->duplicate();
 	style_tab_disabled->set_bg_color(color_disabled_bg);
-	style_tab_disabled->set_border_color_all(color_disabled);
+	style_tab_disabled->set_border_color(color_disabled);
 
 	// Editor background
 	theme->set_stylebox("Background", "EditorStyles", make_flat_stylebox(background_color, default_margin_size, default_margin_size, default_margin_size, default_margin_size));
@@ -492,7 +492,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	// Focus
 	Ref<StyleBoxFlat> style_focus = style_default->duplicate();
 	style_focus->set_draw_center(false);
-	style_focus->set_border_color_all(contrast_color_2);
+	style_focus->set_border_color(contrast_color_2);
 	theme->set_stylebox("Focus", "EditorStyles", style_focus);
 
 	// Menu
@@ -514,7 +514,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	style_menu_hover_border->set_draw_center(false);
 	style_menu_hover_border->set_border_width_all(0);
 	style_menu_hover_border->set_border_width(MARGIN_BOTTOM, border_width);
-	style_menu_hover_border->set_border_color_all(accent_color);
+	style_menu_hover_border->set_border_color(accent_color);
 
 	Ref<StyleBoxFlat> style_menu_hover_bg = style_widget->duplicate();
 	style_menu_hover_bg->set_border_width_all(0);
@@ -585,7 +585,9 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	theme->set_stylebox("hover", "CheckButton", style_menu);
 
 	theme->set_icon("on", "CheckButton", theme->get_icon("GuiToggleOn", "EditorIcons"));
+	theme->set_icon("on_disabled", "CheckButton", theme->get_icon("GuiToggleOnDisabled", "EditorIcons"));
 	theme->set_icon("off", "CheckButton", theme->get_icon("GuiToggleOff", "EditorIcons"));
+	theme->set_icon("off_disabled", "CheckButton", theme->get_icon("GuiToggleOffDisabled", "EditorIcons"));
 
 	theme->set_color("font_color", "CheckButton", font_color);
 	theme->set_color("font_color_hover", "CheckButton", font_color_hl);
@@ -644,11 +646,9 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 
 	Ref<StyleBoxFlat> sub_inspector_bg = make_flat_stylebox(dark_color_1.linear_interpolate(accent_color, 0.08), 2, 0, 2, 2);
 	sub_inspector_bg->set_border_width(MARGIN_LEFT, 2);
-	sub_inspector_bg->set_border_color(MARGIN_LEFT, accent_color * Color(1, 1, 1, 0.3));
 	sub_inspector_bg->set_border_width(MARGIN_RIGHT, 2);
-	sub_inspector_bg->set_border_color(MARGIN_RIGHT, accent_color * Color(1, 1, 1, 0.3));
 	sub_inspector_bg->set_border_width(MARGIN_BOTTOM, 2);
-	sub_inspector_bg->set_border_color(MARGIN_BOTTOM, accent_color * Color(1, 1, 1, 0.3));
+	sub_inspector_bg->set_border_color(accent_color * Color(1, 1, 1, 0.3));
 	sub_inspector_bg->set_draw_center(true);
 
 	theme->set_stylebox("sub_inspector_bg", "Editor", sub_inspector_bg);
@@ -657,7 +657,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	// Tree & ItemList background
 	Ref<StyleBoxFlat> style_tree_bg = style_default->duplicate();
 	style_tree_bg->set_bg_color(dark_color_1);
-	style_tree_bg->set_border_color_all(dark_color_3);
+	style_tree_bg->set_border_color(dark_color_3);
 	theme->set_stylebox("bg", "Tree", style_tree_bg);
 
 	const Color guide_color = Color(mono_color.r, mono_color.g, mono_color.b, 0.05);
@@ -689,7 +689,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	theme->set_constant("button_margin", "Tree", default_margin_size * EDSCALE);
 	theme->set_constant("draw_relationship_lines", "Tree", relationship_line_opacity >= 0.01);
 	theme->set_constant("draw_guides", "Tree", relationship_line_opacity < 0.01);
-	theme->set_constant("scroll_border", "Tree", default_margin_size * EDSCALE);
+	theme->set_constant("scroll_border", "Tree", 40 * EDSCALE);
 	theme->set_constant("scroll_speed", "Tree", 12);
 
 	Ref<StyleBoxFlat> style_tree_btn = style_default->duplicate();
@@ -708,7 +708,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	Ref<StyleBoxFlat> style_tree_cursor = style_default->duplicate();
 	style_tree_cursor->set_draw_center(false);
 	style_tree_cursor->set_border_width_all(border_width);
-	style_tree_cursor->set_border_color_all(contrast_color_1);
+	style_tree_cursor->set_border_color(contrast_color_1);
 
 	Ref<StyleBoxFlat> style_tree_title = style_default->duplicate();
 	style_tree_title->set_bg_color(dark_color_3);
@@ -731,12 +731,12 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	Ref<StyleBoxFlat> style_itemlist_bg = style_default->duplicate();
 	style_itemlist_bg->set_bg_color(dark_color_1);
 	style_itemlist_bg->set_border_width_all(border_width);
-	style_itemlist_bg->set_border_color_all(dark_color_3);
+	style_itemlist_bg->set_border_color(dark_color_3);
 
 	Ref<StyleBoxFlat> style_itemlist_cursor = style_default->duplicate();
 	style_itemlist_cursor->set_draw_center(false);
 	style_itemlist_cursor->set_border_width_all(border_width);
-	style_itemlist_cursor->set_border_color_all(highlight_color);
+	style_itemlist_cursor->set_border_color(highlight_color);
 	theme->set_stylebox("cursor", "ItemList", style_itemlist_cursor);
 	theme->set_stylebox("cursor_unfocused", "ItemList", style_itemlist_cursor);
 	theme->set_stylebox("selected_focus", "ItemList", style_tree_focus);
@@ -781,7 +781,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 
 	// Content of each tab
 	Ref<StyleBoxFlat> style_content_panel = style_default->duplicate();
-	style_content_panel->set_border_color_all(dark_color_3);
+	style_content_panel->set_border_color(dark_color_3);
 	style_content_panel->set_border_width_all(border_width);
 	// compensate the border
 	style_content_panel->set_default_margin(MARGIN_TOP, margin_size_extra * EDSCALE);
@@ -821,6 +821,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	theme->set_stylebox("read_only", "LineEdit", style_widget_disabled);
 	theme->set_color("read_only", "LineEdit", font_color_disabled);
 	theme->set_color("font_color", "LineEdit", font_color);
+	theme->set_color("font_color_selected", "LineEdit", mono_color);
 	theme->set_color("cursor_color", "LineEdit", font_color);
 	theme->set_color("selection_color", "LineEdit", font_color_selection);
 	theme->set_color("clear_button_color", "LineEdit", font_color);
@@ -832,8 +833,10 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	theme->set_stylebox("read_only", "TextEdit", style_widget_disabled);
 	theme->set_constant("side_margin", "TabContainer", 0);
 	theme->set_icon("tab", "TextEdit", theme->get_icon("GuiTab", "EditorIcons"));
+	theme->set_icon("folded", "TextEdit", theme->get_icon("GuiTreeArrowRight", "EditorIcons"));
+	theme->set_icon("fold", "TextEdit", theme->get_icon("GuiTreeArrowDown", "EditorIcons"));
 	theme->set_color("font_color", "TextEdit", font_color);
-	theme->set_color("caret_color", "TextEdit", highlight_color);
+	theme->set_color("caret_color", "TextEdit", font_color);
 	theme->set_color("selection_color", "TextEdit", font_color_selection);
 
 	// H/VSplitContainer
@@ -859,7 +862,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 
 	// WindowDialog
 	Ref<StyleBoxFlat> style_window = style_popup->duplicate();
-	style_window->set_border_color_all(tab_color);
+	style_window->set_border_color(tab_color);
 	style_window->set_border_width(MARGIN_TOP, 24 * EDSCALE);
 	style_window->set_expand_margin_size(MARGIN_TOP, 24 * EDSCALE);
 	theme->set_stylebox("panel", "WindowDialog", style_window);
@@ -874,7 +877,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	// complex window, for now only Editor settings and Project settings
 	Ref<StyleBoxFlat> style_complex_window = style_window->duplicate();
 	style_complex_window->set_bg_color(dark_color_2);
-	style_complex_window->set_border_color_all(highlight_tabs ? tab_color : dark_color_2);
+	style_complex_window->set_border_color(highlight_tabs ? tab_color : dark_color_2);
 	theme->set_stylebox("panel", "EditorSettingsDialog", style_complex_window);
 	theme->set_stylebox("panel", "ProjectSettingsEditor", style_complex_window);
 	theme->set_stylebox("panel", "EditorAbout", style_complex_window);
@@ -953,7 +956,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	style_tooltip->set_default_margin(MARGIN_BOTTOM, v);
 	style_tooltip->set_bg_color(Color(mono_color.r, mono_color.g, mono_color.b, 0.9));
 	style_tooltip->set_border_width_all(border_width);
-	style_tooltip->set_border_color_all(mono_color);
+	style_tooltip->set_border_color(mono_color);
 	theme->set_color("font_color", "TooltipLabel", font_color.inverted());
 	theme->set_color("font_color_shadow", "TooltipLabel", mono_color.inverted() * Color(1, 1, 1, 0.1));
 	theme->set_stylebox("panel", "TooltipPanel", style_tooltip);
@@ -988,32 +991,32 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	const int gn_margin_side = 28;
 	Ref<StyleBoxFlat> graphsb = make_flat_stylebox(Color(mv, mv, mv, 0.7), gn_margin_side, 24, gn_margin_side, 5);
 	graphsb->set_border_width_all(border_width);
-	graphsb->set_border_color_all(Color(mv2, mv2, mv2, 0.9));
+	graphsb->set_border_color(Color(mv2, mv2, mv2, 0.9));
 	Ref<StyleBoxFlat> graphsbselected = make_flat_stylebox(Color(mv, mv, mv, 0.9), gn_margin_side, 24, gn_margin_side, 5);
 	graphsbselected->set_border_width_all(border_width);
-	graphsbselected->set_border_color_all(Color(accent_color.r, accent_color.g, accent_color.b, 0.9));
+	graphsbselected->set_border_color(Color(accent_color.r, accent_color.g, accent_color.b, 0.9));
 	graphsbselected->set_shadow_size(8 * EDSCALE);
 	graphsbselected->set_shadow_color(shadow_color);
 	Ref<StyleBoxFlat> graphsbcomment = make_flat_stylebox(Color(mv, mv, mv, 0.3), gn_margin_side, 24, gn_margin_side, 5);
 	graphsbcomment->set_border_width_all(border_width);
-	graphsbcomment->set_border_color_all(Color(mv2, mv2, mv2, 0.9));
+	graphsbcomment->set_border_color(Color(mv2, mv2, mv2, 0.9));
 	Ref<StyleBoxFlat> graphsbcommentselected = make_flat_stylebox(Color(mv, mv, mv, 0.4), gn_margin_side, 24, gn_margin_side, 5);
 	graphsbcommentselected->set_border_width_all(border_width);
-	graphsbcommentselected->set_border_color_all(Color(mv2, mv2, mv2, 0.9));
+	graphsbcommentselected->set_border_color(Color(mv2, mv2, mv2, 0.9));
 	Ref<StyleBoxFlat> graphsbbreakpoint = graphsbselected->duplicate();
 	graphsbbreakpoint->set_draw_center(false);
-	graphsbbreakpoint->set_border_color_all(warning_color);
+	graphsbbreakpoint->set_border_color(warning_color);
 	graphsbbreakpoint->set_shadow_color(warning_color * Color(1.0, 1.0, 1.0, 0.1));
 	Ref<StyleBoxFlat> graphsbposition = graphsbselected->duplicate();
 	graphsbposition->set_draw_center(false);
-	graphsbposition->set_border_color_all(error_color);
+	graphsbposition->set_border_color(error_color);
 	graphsbposition->set_shadow_color(error_color * Color(1.0, 1.0, 1.0, 0.2));
 	Ref<StyleBoxFlat> smgraphsb = make_flat_stylebox(Color(mv, mv, mv, 0.7), gn_margin_side, 24, gn_margin_side, 5);
 	smgraphsb->set_border_width_all(border_width);
-	smgraphsb->set_border_color_all(Color(mv2, mv2, mv2, 0.9));
+	smgraphsb->set_border_color(Color(mv2, mv2, mv2, 0.9));
 	Ref<StyleBoxFlat> smgraphsbselected = make_flat_stylebox(Color(mv, mv, mv, 0.9), gn_margin_side, 24, gn_margin_side, 5);
 	smgraphsbselected->set_border_width_all(border_width);
-	smgraphsbselected->set_border_color_all(Color(accent_color.r, accent_color.g, accent_color.b, 0.9));
+	smgraphsbselected->set_border_color(Color(accent_color.r, accent_color.g, accent_color.b, 0.9));
 	smgraphsbselected->set_shadow_size(8 * EDSCALE);
 	smgraphsbselected->set_shadow_color(shadow_color);
 
@@ -1105,7 +1108,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	const Color caret_color = mono_color;
 	const Color caret_background_color = mono_color.inverted();
 	const Color text_selected_color = dark_color_3;
-	const Color selection_color = alpha2;
+	const Color selection_color = accent_color * Color(1, 1, 1, 0.35);
 	const Color brace_mismatch_color = error_color;
 	const Color current_line_color = alpha1;
 	const Color line_length_guideline_color = dark_theme ? base_color : background_color;
@@ -1115,6 +1118,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 	const Color member_variable_color = main_color.linear_interpolate(mono_color, 0.6);
 	const Color mark_color = Color(error_color.r, error_color.g, error_color.b, 0.3);
 	const Color breakpoint_color = error_color;
+	const Color executing_line_color = Color(0.2, 0.8, 0.2, 0.4);
 	const Color code_folding_color = alpha3;
 	const Color search_result_color = alpha1;
 	const Color search_result_border_color = alpha3;
@@ -1150,6 +1154,7 @@ Ref<Theme> create_editor_theme(const Ref<Theme> p_theme) {
 		setting->set_initial_value("text_editor/highlighting/member_variable_color", member_variable_color, true);
 		setting->set_initial_value("text_editor/highlighting/mark_color", mark_color, true);
 		setting->set_initial_value("text_editor/highlighting/breakpoint_color", breakpoint_color, true);
+		setting->set_initial_value("text_editor/highlighting/executing_line_color", executing_line_color, true);
 		setting->set_initial_value("text_editor/highlighting/code_folding_color", code_folding_color, true);
 		setting->set_initial_value("text_editor/highlighting/search_result_color", search_result_color, true);
 		setting->set_initial_value("text_editor/highlighting/search_result_border_color", search_result_border_color, true);
diff --git a/editor/export_template_manager.cpp b/editor/export_template_manager.cpp
index 97ccfb0db1..ed6d6578ad 100644
--- a/editor/export_template_manager.cpp
+++ b/editor/export_template_manager.cpp
@@ -308,7 +308,8 @@ bool ExportTemplateManager::_install_from_file(const String &p_file, bool p_use_
 			p->step(TTR("Importing:") + " " + file, fc);
 		}
 
-		FileAccess *f = FileAccess::open(template_path.plus_file(file), FileAccess::WRITE);
+		String to_write = template_path.plus_file(file);
+		FileAccess *f = FileAccess::open(to_write, FileAccess::WRITE);
 
 		if (!f) {
 			ret = unzGoToNextFile(pkg);
@@ -320,6 +321,10 @@ bool ExportTemplateManager::_install_from_file(const String &p_file, bool p_use_
 
 		memdelete(f);
 
+#ifndef WINDOWS_ENABLED
+		FileAccess::set_unix_permissions(to_write, (info.external_fa >> 16) & 0x01FF);
+#endif
+
 		ret = unzGoToNextFile(pkg);
 		fc++;
 	}
@@ -541,6 +546,112 @@ void ExportTemplateManager::_notification(int p_what) {
 	}
 }
 
+bool ExportTemplateManager::can_install_android_template() {
+
+	return FileAccess::exists(EditorSettings::get_singleton()->get_templates_dir().plus_file(VERSION_FULL_CONFIG).plus_file("android_source.zip"));
+}
+
+Error ExportTemplateManager::install_android_template() {
+
+	DirAccessRef da = DirAccess::open("res://");
+	ERR_FAIL_COND_V(!da, ERR_CANT_CREATE);
+	//make android dir (if it does not exist)
+
+	da->make_dir("android");
+	{
+		//add an empty .gdignore file to avoid scan
+		FileAccessRef f = FileAccess::open("res://android/.gdignore", FileAccess::WRITE);
+		ERR_FAIL_COND_V(!f, ERR_CANT_CREATE);
+		f->store_line("");
+		f->close();
+	}
+	{
+		//add version, to ensure building wont work if template and Godot version are mismatch
+		FileAccessRef f = FileAccess::open("res://android/.build_version", FileAccess::WRITE);
+		ERR_FAIL_COND_V(!f, ERR_CANT_CREATE);
+		f->store_line(VERSION_FULL_CONFIG);
+		f->close();
+	}
+
+	Error err = da->make_dir_recursive("android/build");
+	ERR_FAIL_COND_V(err != OK, err);
+
+	String source_zip = EditorSettings::get_singleton()->get_templates_dir().plus_file(VERSION_FULL_CONFIG).plus_file("android_source.zip");
+	ERR_FAIL_COND_V(!FileAccess::exists(source_zip), ERR_CANT_OPEN);
+
+	FileAccess *src_f = NULL;
+	zlib_filefunc_def io = zipio_create_io_from_file(&src_f);
+
+	unzFile pkg = unzOpen2(source_zip.utf8().get_data(), &io);
+	ERR_EXPLAIN("Android sources not in zip format");
+	ERR_FAIL_COND_V(!pkg, ERR_CANT_OPEN);
+
+	int ret = unzGoToFirstFile(pkg);
+
+	int total_files = 0;
+	//count files
+	while (ret == UNZ_OK) {
+		total_files++;
+		ret = unzGoToNextFile(pkg);
+	}
+
+	ret = unzGoToFirstFile(pkg);
+	//decompress files
+	ProgressDialog::get_singleton()->add_task("uncompress", TTR("Uncompressing Android Build Sources"), total_files);
+
+	Set<String> dirs_tested;
+
+	int idx = 0;
+	while (ret == UNZ_OK) {
+
+		//get filename
+		unz_file_info info;
+		char fname[16384];
+		ret = unzGetCurrentFileInfo(pkg, &info, fname, 16384, NULL, 0, NULL, 0);
+
+		String name = fname;
+
+		String base_dir = name.get_base_dir();
+
+		if (!name.ends_with("/")) {
+			Vector<uint8_t> data;
+			data.resize(info.uncompressed_size);
+
+			//read
+			unzOpenCurrentFile(pkg);
+			unzReadCurrentFile(pkg, data.ptrw(), data.size());
+			unzCloseCurrentFile(pkg);
+
+			if (!dirs_tested.has(base_dir)) {
+				da->make_dir_recursive(String("android/build").plus_file(base_dir));
+				dirs_tested.insert(base_dir);
+			}
+
+			String to_write = String("res://android/build").plus_file(name);
+			FileAccess *f = FileAccess::open(to_write, FileAccess::WRITE);
+			if (f) {
+				f->store_buffer(data.ptr(), data.size());
+				memdelete(f);
+#ifndef WINDOWS_ENABLED
+				FileAccess::set_unix_permissions(to_write, (info.external_fa >> 16) & 0x01FF);
+#endif
+			} else {
+				ERR_PRINTS("Cant uncompress file: " + to_write);
+			}
+		}
+
+		ProgressDialog::get_singleton()->task_step("uncompress", name, idx);
+
+		idx++;
+		ret = unzGoToNextFile(pkg);
+	}
+
+	ProgressDialog::get_singleton()->end_task("uncompress");
+	unzClose(pkg);
+
+	return OK;
+}
+
 void ExportTemplateManager::_bind_methods() {
 
 	ClassDB::bind_method("_download_template", &ExportTemplateManager::_download_template);
@@ -579,7 +690,7 @@ ExportTemplateManager::ExportTemplateManager() {
 	remove_confirm->connect("confirmed", this, "_uninstall_template_confirm");
 
 	template_open = memnew(FileDialog);
-	template_open->set_title(TTR("Select template file"));
+	template_open->set_title(TTR("Select Template File"));
 	template_open->add_filter("*.tpz ; Godot Export Templates");
 	template_open->set_access(FileDialog::ACCESS_FILESYSTEM);
 	template_open->set_mode(FileDialog::MODE_OPEN_FILE);
diff --git a/editor/export_template_manager.h b/editor/export_template_manager.h
index 2edd3db6d7..608830c990 100644
--- a/editor/export_template_manager.h
+++ b/editor/export_template_manager.h
@@ -84,6 +84,9 @@ protected:
 	static void _bind_methods();
 
 public:
+	bool can_install_android_template();
+	Error install_android_template();
+
 	void popup_manager();
 
 	ExportTemplateManager();
diff --git a/editor/filesystem_dock.cpp b/editor/filesystem_dock.cpp
index c99786bb07..5ce22154e0 100644
--- a/editor/filesystem_dock.cpp
+++ b/editor/filesystem_dock.cpp
@@ -86,6 +86,13 @@ bool FileSystemDock::_create_tree(TreeItem *p_parent, EditorFileSystemDirectory
 	// Create all items for the files in the subdirectory
 	if (display_mode == DISPLAY_MODE_TREE_ONLY) {
 		for (int i = 0; i < p_dir->get_file_count(); i++) {
+
+			String file_type = p_dir->get_file_type(i);
+
+			if (_is_file_type_disabled_by_feature_profile(file_type)) {
+				//if type is disabled, file wont be displayed.
+				continue;
+			}
 			String file_name = p_dir->get_file(i);
 
 			if (searched_string.length() > 0) {
@@ -276,6 +283,7 @@ void FileSystemDock::_notification(int p_what) {
 			if (initialized)
 				return;
 			initialized = true;
+			EditorFeatureProfileManager::get_singleton()->connect("current_feature_profile_changed", this, "_feature_profile_changed");
 
 			EditorFileSystem::get_singleton()->connect("filesystem_changed", this, "_fs_changed");
 			EditorResourcePreview::get_singleton()->connect("preview_invalidated", this, "_preview_invalidated");
@@ -454,6 +462,7 @@ void FileSystemDock::_navigate_to_path(const String &p_path, bool p_select_in_fa
 	_update_tree(_compute_uncollapsed_paths(), false, p_select_in_favorites);
 	if (display_mode == DISPLAY_MODE_SPLIT) {
 		_update_file_list(false);
+		files->get_v_scroll()->set_value(0);
 	}
 
 	String file_name = p_path.get_file();
@@ -520,6 +529,26 @@ void FileSystemDock::_set_file_display(bool p_active) {
 	_update_file_list(true);
 }
 
+bool FileSystemDock::_is_file_type_disabled_by_feature_profile(const StringName &p_class) {
+
+	Ref<EditorFeatureProfile> profile = EditorFeatureProfileManager::get_singleton()->get_current_profile();
+	if (profile.is_null()) {
+		return false;
+	}
+
+	StringName class_name = p_class;
+
+	while (class_name != StringName()) {
+
+		if (profile->is_class_disabled(class_name)) {
+			return true;
+		}
+		class_name = ClassDB::get_parent_class(class_name);
+	}
+
+	return false;
+}
+
 void FileSystemDock::_search(EditorFileSystemDirectory *p_path, List<FileInfo> *matches, int p_max_items) {
 
 	if (matches->size() > p_max_items)
@@ -541,6 +570,11 @@ void FileSystemDock::_search(EditorFileSystemDirectory *p_path, List<FileInfo> *
 			fi.import_broken = !p_path->get_file_import_is_valid(i);
 			fi.import_status = 0;
 
+			if (_is_file_type_disabled_by_feature_profile(fi.type)) {
+				//this type is disabled, will not appear here
+				continue;
+			}
+
 			matches->push_back(fi);
 			if (matches->size() > p_max_items)
 				return;
@@ -988,6 +1022,7 @@ void FileSystemDock::_try_move_item(const FileOrFolder &p_item, const String &p_
 				for (int j = 0; j < ed->get_edited_scene_count(); j++) {
 					if (ed->get_scene_path(j) == file_changed_paths[i]) {
 						ed->get_edited_scene_root(j)->set_filename(new_item_path);
+						editor->save_layout();
 						break;
 					}
 				}
@@ -1174,7 +1209,7 @@ void FileSystemDock::_make_dir_confirm() {
 		return;
 	} else if (dir_name.find("/") != -1 || dir_name.find("\\") != -1 || dir_name.find(":") != -1 || dir_name.find("*") != -1 ||
 			   dir_name.find("|") != -1 || dir_name.find(">") != -1 || dir_name.ends_with(".") || dir_name.ends_with(" ")) {
-		EditorNode::get_singleton()->show_warning(TTR("Provided name contains invalid characters"));
+		EditorNode::get_singleton()->show_warning(TTR("Provided name contains invalid characters."));
 		return;
 	}
 
@@ -1223,6 +1258,10 @@ void FileSystemDock::_rename_operation_confirm() {
 		return;
 	}
 
+	if (EditorFileSystem::get_singleton()->is_group_file(old_path)) {
+		EditorFileSystem::get_singleton()->move_group_file(old_path, new_path);
+	}
+
 	//Present a more user friendly warning for name conflict
 	DirAccess *da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
 #if defined(WINDOWS_ENABLED) || defined(UWP_ENABLED)
@@ -1320,6 +1359,16 @@ void FileSystemDock::_move_operation_confirm(const String &p_to_path, bool overw
 		}
 	}
 
+	//check groups
+	for (int i = 0; i < to_move.size(); i++) {
+
+		print_line("is group: " + to_move[i].path + ": " + itos(EditorFileSystem::get_singleton()->is_group_file(to_move[i].path)));
+		if (to_move[i].is_file && EditorFileSystem::get_singleton()->is_group_file(to_move[i].path)) {
+			print_line("move to: " + p_to_path.plus_file(to_move[i].path.get_file()));
+			EditorFileSystem::get_singleton()->move_group_file(to_move[i].path, p_to_path.plus_file(to_move[i].path.get_file()));
+		}
+	}
+
 	Map<String, String> file_renames;
 	Map<String, String> folder_renames;
 	bool is_moved = false;
@@ -1429,6 +1478,10 @@ void FileSystemDock::_file_option(int p_option, const Vector<String> p_selected)
 		case FILE_SHOW_IN_EXPLORER: {
 			// Show the file / folder in the OS explorer
 			String fpath = path;
+			if (path == "Favorites") {
+				fpath = p_selected[0];
+			}
+
 			if (!fpath.ends_with("/")) {
 				fpath = fpath.get_base_dir();
 			}
@@ -1437,12 +1490,28 @@ void FileSystemDock::_file_option(int p_option, const Vector<String> p_selected)
 		} break;
 
 		case FILE_OPEN: {
+			// Open folders
+			TreeItem *selected = tree->get_root();
+			selected = tree->get_next_selected(selected);
+			while (selected) {
+				if (p_selected.find(selected->get_metadata(0)) >= 0) {
+					selected->set_collapsed(false);
+				}
+				selected = tree->get_next_selected(selected);
+			}
 			// Open the file
 			for (int i = 0; i < p_selected.size(); i++) {
 				_select_file(p_selected[i]);
 			}
 		} break;
 
+		case FILE_INHERIT: {
+			// Create a new scene inherited from the selected one
+			if (p_selected.size() == 1) {
+				emit_signal("inherit", p_selected[0]);
+			}
+		} break;
+
 		case FILE_INSTANCE: {
 			// Instance all selected scenes
 			Vector<String> paths;
@@ -2009,13 +2078,16 @@ void FileSystemDock::_file_and_folders_fill_popup(PopupMenu *p_popup, Vector<Str
 
 	if (all_files) {
 
-		if (all_files_scenes && filenames.size() >= 1) {
-			p_popup->add_item(TTR("Open Scene(s)"), FILE_OPEN);
+		if (all_files_scenes) {
+			if (filenames.size() == 1) {
+				p_popup->add_item(TTR("Open Scene"), FILE_OPEN);
+				p_popup->add_item(TTR("New Inherited Scene"), FILE_INHERIT);
+			} else {
+				p_popup->add_item(TTR("Open Scenes"), FILE_OPEN);
+			}
 			p_popup->add_item(TTR("Instance"), FILE_INSTANCE);
 			p_popup->add_separator();
-		}
-
-		if (!all_files_scenes && filenames.size() == 1) {
+		} else if (filenames.size() == 1) {
 			p_popup->add_item(TTR("Open"), FILE_OPEN);
 			p_popup->add_separator();
 		}
@@ -2023,10 +2095,10 @@ void FileSystemDock::_file_and_folders_fill_popup(PopupMenu *p_popup, Vector<Str
 
 	if (p_paths.size() >= 1) {
 		if (!all_favorites) {
-			p_popup->add_item(TTR("Add to favorites"), FILE_ADD_FAVORITE);
+			p_popup->add_item(TTR("Add to Favorites"), FILE_ADD_FAVORITE);
 		}
 		if (!all_not_favorites) {
-			p_popup->add_item(TTR("Remove from favorites"), FILE_REMOVE_FAVORITE);
+			p_popup->add_item(TTR("Remove from Favorites"), FILE_REMOVE_FAVORITE);
 		}
 		p_popup->add_separator();
 	}
@@ -2088,6 +2160,10 @@ void FileSystemDock::_tree_rmb_select(const Vector2 &p_pos) {
 	}
 }
 
+void FileSystemDock::_tree_empty_selected() {
+	tree->deselect_all();
+}
+
 void FileSystemDock::_file_list_rmb_select(int p_item, const Vector2 &p_pos) {
 	// Right click is pressed in the file list
 	Vector<String> paths;
@@ -2255,6 +2331,11 @@ void FileSystemDock::_update_import_dock() {
 	import_dock_needs_update = false;
 }
 
+void FileSystemDock::_feature_profile_changed() {
+
+	_update_display_mode(true);
+}
+
 void FileSystemDock::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("_file_list_gui_input"), &FileSystemDock::_file_list_gui_input);
@@ -2266,9 +2347,10 @@ void FileSystemDock::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_toggle_split_mode"), &FileSystemDock::_toggle_split_mode);
 
 	ClassDB::bind_method(D_METHOD("_tree_rmb_option", "option"), &FileSystemDock::_tree_rmb_option);
-	ClassDB::bind_method(D_METHOD("_file_list_rmb_option", "option"), &FileSystemDock::_file_list_rmb_option);
-
 	ClassDB::bind_method(D_METHOD("_tree_rmb_select"), &FileSystemDock::_tree_rmb_select);
+	ClassDB::bind_method(D_METHOD("_tree_empty_selected"), &FileSystemDock::_tree_empty_selected);
+
+	ClassDB::bind_method(D_METHOD("_file_list_rmb_option", "option"), &FileSystemDock::_file_list_rmb_option);
 	ClassDB::bind_method(D_METHOD("_file_list_rmb_select"), &FileSystemDock::_file_list_rmb_select);
 	ClassDB::bind_method(D_METHOD("_file_list_rmb_pressed"), &FileSystemDock::_file_list_rmb_pressed);
 
@@ -2304,8 +2386,10 @@ void FileSystemDock::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_file_multi_selected"), &FileSystemDock::_file_multi_selected);
 	ClassDB::bind_method(D_METHOD("_update_import_dock"), &FileSystemDock::_update_import_dock);
 
+	ClassDB::bind_method(D_METHOD("_feature_profile_changed"), &FileSystemDock::_feature_profile_changed);
+
+	ADD_SIGNAL(MethodInfo("inherit", PropertyInfo(Variant::STRING, "file")));
 	ADD_SIGNAL(MethodInfo("instance", PropertyInfo(Variant::POOL_STRING_ARRAY, "files")));
-	ADD_SIGNAL(MethodInfo("open"));
 
 	ADD_SIGNAL(MethodInfo("file_removed", PropertyInfo(Variant::STRING, "file")));
 	ADD_SIGNAL(MethodInfo("folder_removed", PropertyInfo(Variant::STRING, "folder")));
@@ -2336,13 +2420,13 @@ FileSystemDock::FileSystemDock(EditorNode *p_editor) {
 	button_hist_prev = memnew(ToolButton);
 	button_hist_prev->set_disabled(true);
 	button_hist_prev->set_focus_mode(FOCUS_NONE);
-	button_hist_prev->set_tooltip(TTR("Previous Directory"));
+	button_hist_prev->set_tooltip(TTR("Previous Folder/File"));
 	toolbar_hbc->add_child(button_hist_prev);
 
 	button_hist_next = memnew(ToolButton);
 	button_hist_next->set_disabled(true);
 	button_hist_next->set_focus_mode(FOCUS_NONE);
-	button_hist_next->set_tooltip(TTR("Next Directory"));
+	button_hist_next->set_tooltip(TTR("Next Folder/File"));
 	toolbar_hbc->add_child(button_hist_next);
 
 	current_path = memnew(LineEdit);
@@ -2363,7 +2447,7 @@ FileSystemDock::FileSystemDock(EditorNode *p_editor) {
 	button_toggle_display_mode->set_toggle_mode(true);
 	button_toggle_display_mode->connect("toggled", this, "_toggle_split_mode");
 	button_toggle_display_mode->set_focus_mode(FOCUS_NONE);
-	button_toggle_display_mode->set_tooltip(TTR("Toggle split mode"));
+	button_toggle_display_mode->set_tooltip(TTR("Toggle Split Mode"));
 	toolbar_hbc->add_child(button_toggle_display_mode);
 
 	HBoxContainer *toolbar2_hbc = memnew(HBoxContainer);
@@ -2401,6 +2485,7 @@ FileSystemDock::FileSystemDock(EditorNode *p_editor) {
 	tree->connect("item_activated", this, "_tree_activate_file");
 	tree->connect("multi_selected", this, "_tree_multi_selected");
 	tree->connect("item_rmb_selected", this, "_tree_rmb_select");
+	tree->connect("nothing_selected", this, "_tree_empty_selected");
 	tree->connect("gui_input", this, "_tree_gui_input");
 
 	file_list_vb = memnew(VBoxContainer);
diff --git a/editor/filesystem_dock.h b/editor/filesystem_dock.h
index cd052f9700..9d20544ac2 100644
--- a/editor/filesystem_dock.h
+++ b/editor/filesystem_dock.h
@@ -73,6 +73,7 @@ public:
 private:
 	enum FileMenu {
 		FILE_OPEN,
+		FILE_INHERIT,
 		FILE_INSTANCE,
 		FILE_ADD_FAVORITE,
 		FILE_REMOVE_FAVORITE,
@@ -237,6 +238,7 @@ private:
 	void _tree_rmb_select(const Vector2 &p_pos);
 	void _file_list_rmb_select(int p_item, const Vector2 &p_pos);
 	void _file_list_rmb_pressed(const Vector2 &p_pos);
+	void _tree_empty_selected();
 
 	struct FileInfo {
 		String name;
@@ -268,6 +270,10 @@ private:
 
 	Vector<String> _tree_get_selected(bool remove_self_inclusion = true);
 
+	bool _is_file_type_disabled_by_feature_profile(const StringName &p_class);
+
+	void _feature_profile_changed();
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
diff --git a/editor/icons/icon_auto_key.svg b/editor/icons/icon_auto_key.svg
new file mode 100644
index 0000000000..cbafe1ac38
--- /dev/null
+++ b/editor/icons/icon_auto_key.svg
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16"
+   height="16"
+   version="1.1"
+   viewBox="0 0 16 16"
+   id="svg6"
+   sodipodi:docname="icon_auto_key.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)">
+  <metadata
+     id="metadata12">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs10" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1854"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     inkscape:zoom="10.429825"
+     inkscape:cx="10.199345"
+     inkscape:cy="-4.0344119"
+     inkscape:window-x="66"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg6" />
+  <path
+     style="fill:#e0e0e0;fill-opacity:1;stroke-width:0.0333107"
+     d="M 3.5469681,13.426786 C 2.7965829,13.263778 2.2774312,12.503915 2.4037297,11.753472 c 0.1081234,-0.642451 0.6006808,-1.135008 1.2431317,-1.243131 0.9667125,-0.162696 1.8555225,0.726112 1.6928259,1.692826 -0.103766,0.616558 -0.5592173,1.098057 -1.1588427,1.225117 -0.2719576,0.05763 -0.3626872,0.05741 -0.6338765,-0.0014 z m 8.0861339,-0.08275 c -0.746862,-0.13829 -1.23937,-0.720718 -1.23937,-1.465649 0,-0.527377 0.244831,-0.978806 0.679757,-1.253362 0.471386,-0.297574 1.114188,-0.297574 1.585574,0 0.682727,0.430986 0.892336,1.362194 0.460575,2.046149 -0.307786,0.487563 -0.940521,0.773963 -1.486536,0.672862 z M 0.60726032,9.8305658 V 7.7161233 L 1.1770842,7.7070075 1.7469079,7.6978939 3.1889882,5.1995916 4.6310686,2.7012893 h 3.1726318 3.1726316 l 1.442755,2.4983023 1.442755,2.4983023 0.651097,0.00903 0.651096,0.00903 v 2.1145264 2.1145257 h -0.566282 -0.566281 v -0.161225 c 0,-0.234927 -0.113135,-0.639704 -0.255664,-0.914727 -0.16895,-0.326004 -0.574198,-0.731251 -0.900202,-0.9002019 -0.656732,-0.3403483 -1.428549,-0.3403483 -2.085281,0 -0.326004,0.1689519 -0.731252,0.5741989 -0.9002019,0.9002029 -0.1425297,0.275023 -0.2556639,0.6798 -0.2556639,0.914727 v 0.161225 H 7.8570969 6.0797346 L 6.0617736,11.686851 C 6.006289,10.889347 5.447548,10.170679 4.6603773,9.884336 4.4466221,9.8065798 4.3737631,9.797427 3.9716406,9.7978134 3.5871254,9.7981885 3.4905638,9.809405 3.3054265,9.8752358 2.5067319,10.159236 1.9362359,10.884501 1.8813215,11.68568 l -0.017772,0.259329 H 1.2354063 0.60726287 Z M 12.399247,7.7466889 c 0,-0.037287 -0.02623,-0.1073444 -0.0583,-0.1556843 -0.03206,-0.04834 -0.561225,-0.958444 -1.17592,-2.0224529 L 10.047407,3.6339894 7.6977565,3.6254406 C 5.4917229,3.6174174 5.3450379,3.6204563 5.2979001,3.6754094 5.1898818,3.8013046 2.9723198,7.6840061 2.9723198,7.7472381 c 0,0.067139 0.00758,0.067247 4.7134636,0.067247 h 4.7134636 z"
+     id="path6243"
+     inkscape:connector-curvature="0" />
+</svg>
diff --git a/editor/icons/icon_bucket.svg b/editor/icons/icon_bucket.svg
new file mode 100644
index 0000000000..4a5df39e93
--- /dev/null
+++ b/editor/icons/icon_bucket.svg
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16"
+   height="16"
+   version="1.1"
+   viewBox="0 0 16 16"
+   id="svg6"
+   sodipodi:docname="icon_bucket.svg"
+   inkscape:version="0.92.2 2405546, 2018-03-11">
+  <metadata
+     id="metadata12">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
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diff --git a/editor/icons/icon_sprite_sheet.svg b/editor/icons/icon_sprite_sheet.svg
new file mode 100644
index 0000000000..eeb804f8b9
--- /dev/null
+++ b/editor/icons/icon_sprite_sheet.svg
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16"
+   height="16"
+   version="1.1"
+   viewBox="0 0 16 16"
+   id="svg6"
+   sodipodi:docname="icon_sprite_sheet.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
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+     id="metadata12">
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+         rdf:about="">
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+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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+     id="defs10" />
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diff --git a/editor/import/atlas_import_failed.xpm b/editor/import/atlas_import_failed.xpm
new file mode 100644
index 0000000000..52db6b76a6
--- /dev/null
+++ b/editor/import/atlas_import_failed.xpm
@@ -0,0 +1,414 @@
+/* XPM */
+static const char * atlas_import_failed_xpm[] = {
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+". . . . . . . . . . . . . $ % @ & . . . . . * @ + . . . . + @ # . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . ; @ > , . . . . . * @ + . . . . + @ # . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . ' ) ! ~ { . . . . * @ + . . . . + @ # . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . . . ] @ ^ / @ ( . . . _ @ @ @ @ @ : . + @ # . . < [ } | 1 2 3 . . . . 4 5 ) 6 | 7 8 . . . . . . . . = @ - . . 9 @ 0 a b > c d . e , f | g . . . . 9 @ 0 a h % i & . . . . j k l m n o j . . . 9 @ 0 p q m r @ @ @ @ @ : . . . . . . . . . . ",
+". . . . . . . . . . . . k s t . u v < . . _ @ @ @ @ @ : . + @ # . . w @ @ @ @ @ @ 5 . . . k @ @ @ @ @ % . . . . . . . . = @ - . . 9 @ x @ @ @ @ y d z @ @ @ @ * . . . 9 @ A @ @ @ @ @ B . . C D @ @ @ @ @ h C . . 9 @ x @ @ @ E @ @ @ @ @ : . . . . . . . . . . ",
+". . . . . . . . . . . F G 7 . . H @ I . . . * @ + . . . . + @ # . . ] J 8 j K 0 h 6 K . . l l = F j L M . . . . . . . . = @ - . . 9 @ % N j O J @ P Q R S & T U . . . 9 @ s ^ O j V W X F . Y @ Z ` S w  .@ ... . 9 @ s +.t . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . . @.@ #.. . K 6 x . . . * @ + . . . . + @ # . . . . . . . . # @ $.. . ' M . . . . . . . . . . . . . = @ - . . 9 @ %.. . . &.@ *.4 . . . =.r . . . 9 @ -.. . . . ;.@ 0 . q 6 t . . . t f h . . 9 @ >.. . . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . . ,.'.).. . . !.~.j . . * @ + . . . . + @ # . . . {.].P ~ @ @ @ 9 . . 8 r ^.- /.j . . . . . . . . . = @ - . . 9 @ + . . . . @ A . . . . !.~ . . . 9 @ (.. . . . # @ N . 1 _.. . . . . c s . . 9 @ (.. . . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . { ~ @ @ @ @ @ @ @ :.. . * @ + . . . . + @ # . . ^ @ @ @ @ @ @ @ H . . . F <._ [.> }.. . . . . . . . = @ - . . 9 @ 0 . . . . @ |.. . . . : @ . . . 9 @ (.. . . . # @ N . 1 u . . . . . c s . . 9 @ 0 . . . . * @ + . . . . . . . . . . . . . ",
+". . . . . . . . . . 1.@ @ @ @ @ @ @ @ ^.. . #.@ # . . . . + @ # . . 2.r $.$ < . [ @ H . . . . . . . + @ * . . . . . . . = @ - . . 9 @ 0 . . . . @ |.. . . . : @ . . . 9 @ -.. . . . ;.@ 0 . q 6 t . . . O f h . . 9 @ 0 . . . . #.@ # . . . . . . . . . . . . . ",
+". . . . . . . . . < 3.4.K . . . . . 5.@ w . 6.@ ;.F . . . + @ # . . 2.n ` 4 $ + *.@ H . 4 7.@.8.4 9.k @ ^ . . . . . . . = @ - . . 9 @ 0 . . . . @ |.. . . . : @ . . . 9 @ s ^ O j V W X F . %.@ u w F ] u @ - . . 9 @ 0 . . . . 6.@ ;.F . . . . . . . . . . . . ",
+". . . . . . . . . L @ 0.. . . . . . L @ o . K > @ @ @ : . + @ # . . a.@ @ @ @ @ b.@ H . F @ @ @ @ @ @ > / . . . . . . . = @ - . . 9 @ 0 . . . . @ |.. . . . : @ . . . 9 @ A @ @ @ @ @ B . . C D @ @ @ @ @ h $ . . 9 @ 0 . . . . K > @ @ @ : . . . . . . . . . . ",
+". . . . . . . . . A @ ` . . . . . . < *.c.F . # ^.~.@ : . + @ # . . 4 _ *.% q N d.@ H . . e.: h % l b.e . . . . . . . . = @ - . . 9 @ 0 . . . . @ |.. . . . : @ . . . 9 @ 0 f.g.~.i /.. . . . j h.n W i.>.O . . . 9 @ 0 . . . . . # ^.~.@ : . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 @ 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 @ 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 @ 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 @ 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + @ # . . + @ # . . . . . . . . . . . . . . . . . . . . j.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ @ @ @ @ @ @ # . . . . . . . . . . + @ # . . + @ # . . . . . . . . . . . . . . . . . . . . j.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ @ @ @ @ @ @ # . . . . . . . . . . . . . . . + @ # . . . . . . . . . . . . . . . . . . . . j.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . . . . . . . . . . . . . . . . . + @ # . . . . . . . . . . . . . . . . . . . . j.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . < [ } | 1 2 3 . . . . + @ # . . + @ # . . . 4 l.m.% G 5.n.. . . . &.Q z c.x O j.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . w @ @ @ @ @ @ 5 . . . + @ # . . + @ # . . ).o.@ @ @ @ @ c./ . . $ v @ @ @ @ p.2.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ @ @ @ @ @ U ] J 8 j K 0 h 6 K . . + @ # . . + @ # . . q.@ } w F O q.s r.. . a.@ s.d S 8 ) @ k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ @ @ @ @ @ U . . . . . . # @ $.. . + @ # . . + @ # . . t.| ).. . . . !.> < . q G C . . . d @ k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . . {.].P ~ @ @ @ 9 . . + @ # . . + @ # . . > @ @ @ @ @ @ @ @ O . % u.. . . . . y k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . ^ @ @ @ @ @ @ @ H . . + @ # . . + @ # . . 1 @ @ @ @ @ @ @ @ v.. % u.. . . . . r k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . 2.r $.$ < . [ @ H . . + @ # . . + @ # . . ^.h < . . . . . . . . q G C . . . d @ k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . 2.n ` 4 $ + *.@ H . . + @ # . . + @ # . . +.@ w.e.C S d x.y.. . a.@ s.z.S 8 ) @ k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . a.@ @ @ @ @ b.@ H . . + @ # . . + @ # . . ).M @ @ @ @ @ @ s.. . $ v @ @ @ @ ^.2.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . = @ - . . . . . 4 _ *.% q N d.@ H . . + @ # . . + @ # . . . ).f.k.6 z ' Y v.. . . &.A A.z A O j.k.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.B.C.D.B.C.D.. . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.C.C.C.F.. B.C.D.B.C.D.B.C.D.. . . . C.G.. . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.H.. . . . . . . B.C.D.B.C.D.. . . . C.G.. . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.H.. . . . B.C.D.B.C.D.B.C.D.. . . I.C.C.C.J.B.C.C.C.K.L.M.. N.O.P.Q.R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.C.C.C.H.. B.C.D.B.C.D.B.C.D.. . . . C.G.. . B.C.S.T.U.C.V.W.C.X.Y.Z.`.E.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.H.. . . . B.C.D.B.C.D.B.C.D.. . . . C.G.. . B.C. +. .+C.++@+C.C.C.C.C.R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.H.. . . . B.C.D.B.C.D.B.C.D.. . . . #+Q.$+. B.C.D.. .+C.++W.C.%+&+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.C.H.. . . . B.C.D.B.C.D.B.C.D.. . . . *+`.C.=+B.C.D.. .+C.++. N.-+;+C.C.Y.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . B.C.D.B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y.C.>+,+R.. . '+C.C.)+. . . C.G.. . B.C.D.. . . . . . . . . . . . . . . . E.C.C.C.C.F.. B.C.D.B.C.D.. . . . . . . Y.C.>+,+R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y.C.>+,+R.. . !+~+{+]+. . . C.G.. . B.C.D.. . . . . . . . . . . . . . . . E.C.H.. . . . . . . B.C.D.. . . . . . . Y.C.>+,+R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y.C.>+,+R.. ^+C./+(+_+&+. I.C.C.C.J.B.C.D.:+C.C.P.<+[+. }+G.|+C.C.>+. . . E.C.H.. . . . B.C.D.B.C.D.. N.O.P.Q.R.. Y.C.>+,+R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1+;+T.2+C.3+. . C.G.. . B.C.D.. . . T.4+Q.. 5+C.X.6+Y.. . . . E.C.C.C.C.H.. B.C.D.B.C.D.W.C.X.Y.Z.`.E.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7+8+C.C.C.C.9+. . C.G.. . B.C.D.0+a+8+C.C.|+. b+c+C.C.d+e+. . . E.C.H.. . . . B.C.D.B.C.D.@+C.C.C.C.C.R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . f+C.g+. . J.h+>+. #+Q.$+. B.C.D.i+C.j+0+,+#+. . &+e+k+C.l+. . . E.C.H.. . . . B.C.D.B.C.D.W.C.%+&+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . m+h+n+. . o+C.p+. *+`.C.=+B.C.D.q+!+{+C.C.#+. =+C.C.8+r+E.. . . E.C.H.. . . . B.C.D.B.C.D.. N.-+;+C.C.Y.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V.4+C.s+C.U.. . . . . . . B.C.D.. . . . N.C.W.. . . B.C.D.. . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . t+u+Y.v+C.U.. . . . . . . B.C.D.. . . . N.C.W.. . . B.C.D.. . . . . . . . . . . C.G.. . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . u+w+. . . . . . . . . . . B.C.D.. . . . N.C.W.. . . . . . . . . . . . . . . . . C.G.. . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H.C.C.C.C.C.U.. N.O.P.Q.R.. B.C.D.. x+d+C.C.C.W.. . . B.C.D.B.C.C.C.K.L.M.. . . I.C.C.C.J.B.C.C.C.K.L.M.. N.O.P.Q.R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . y+!+. v+C.U.W.C.X.Y.Z.`.E.B.C.D.2+C.x+z+(+C.W.. . . B.C.D.B.C.S.T.U.C.V.. . . . C.G.. . B.C.S.T.U.C.V.W.C.X.Y.Z.`.E.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . y+!+. v+C.U.@+C.C.C.C.C.R.B.C.D.%+C.A+. B+C.W.. . . B.C.D.B.C. +. .+C.++. . . . C.G.. . B.C. +. .+C.++@+C.C.C.C.C.R.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . y+!+. v+C.U.W.C.%+&+. . . B.C.D.2+C.k+z+9+C.W.. . . B.C.D.B.C.D.. .+C.++. . . . #+Q.$+. B.C.D.. .+C.++W.C.%+&+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . y+!+. v+C.U.. N.-+;+C.C.Y.B.C.D.. x+d+C.C.C.W.. . . B.C.D.B.C.D.. .+C.++. . . . *+`.C.=+B.C.D.. .+C.++. N.-+;+C.C.Y.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.C.W.. . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . N.C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.G.. . . . . . . . . N.C.W.. . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . N.C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.G.. . . . . . . . . N.C.W.. . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . N.C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.)+C.C.C.K.C+O.K.!+B.B.C.C.C.D+E+7+. '+O.P.C+F+. B.C.C.C.,+I.C.C.C.J.. . . . x+d+C.C.C.W.. '+O.P.C+F+. . .+G+H+C.R.B.C.D.>+I+I.q+. . . :+C.C.P.<+[+. B.C.C.C.K.L.M.. x+d+C.C.C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.)+C.!+T.J+C.=+g+C.]+B.C.I+E.=+C.K+W.C.]+Y.L+h+b+B.C.O.M+. . C.G.. . . . . 2+C.x+z+(+C.W.W.C.]+Y.L+h+b+N+C.O+z+. . B.C.P+4+Q+T.. . . . . . . T.4+Q.. B.C.S.T.U.C.V.2+C.x+z+(+C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.)+C. +. R+C.M+S+C.T+B.C.U+. M+C.E+@+C.V.. =+C.V+B.C. +. . . C.G.. . . . . %+C.A+. B+C.W.@+C.V.. =+C.V+@+C.A+. . . B.C.C.C.R.. . . . . 0+a+8+C.C.|+. B.C. +. .+C.++%+C.A+. B+C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.)+C.D.. R+C.>+S+C.T+B.C.C+E.W+C.K+W.C.*+Y.X+{+b+B.C.D.. . . #+Q.$+. . . . 2+C.k+z+9+C.W.W.C.*+Y.X+{+b+Y+C.s+z+. . B.C.Z+m+|+V.. . . . i+C.j+0+,+#+. B.C.D.. .+C.++2+C.k+z+9+C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . B.C.D.)+C.D.. R+C.>+S+C.T+B.C.C.C.D+`+7+.  @.@D+G++@. B.C.D.. . . *+`.C.=+. . . . x+d+C.C.C.W..  @.@D+G++@. . l+@@H+C.R.B.C.D.Y.#@K.2+. . . q+!+{+C.C.#+. B.C.D.. .+C.++. x+d+C.C.C.W.. . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.G.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C.G.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.C.C.,+. N.O.P.Q.R.. . . . . B.C.D.)+C.C.C.K.C+O.K.!+B.B.C.C.C.D+E+7+. '+O.P.C+F+. B.C.C.C.,+I.C.C.C.J.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.O.M+. W.C.X.Y.Z.`.E.$@C.C.%@B.C.D.)+C.!+T.J+C.=+g+C.]+B.C.I+E.=+C.K+W.C.]+Y.L+h+b+B.C.O.M+. . C.G.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C. +. . @+C.C.C.C.C.R.. . . . B.C.D.)+C. +. R+C.M+S+C.T+B.C.U+. M+C.E+@+C.V.. =+C.V+B.C. +. . . C.G.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . W.C.%+&+. . . . . . . B.C.D.)+C.D.. R+C.>+S+C.T+B.C.C+E.W+C.K+W.C.*+Y.X+{+b+B.C.D.. . . #+Q.$+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . N.-+;+C.C.Y.. . . . B.C.D.)+C.D.. R+C.>+S+C.T+B.C.C.C.D+`+7+.  @.@D+G++@. B.C.D.. . . *+`.C.=+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.C.D.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ",
+". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "};
diff --git a/editor/import/editor_import_collada.cpp b/editor/import/editor_import_collada.cpp
index 44eaf3d9ef..e152827c63 100644
--- a/editor/import/editor_import_collada.cpp
+++ b/editor/import/editor_import_collada.cpp
@@ -1614,8 +1614,6 @@ void ColladaImport::create_animation(int p_clip, bool p_make_tracks_in_all_bones
 					continue;
 				}
 
-				ERR_CONTINUE(xform_idx == -1);
-
 				Vector<float> data = at.get_value_at_time(snapshots[i]);
 				ERR_CONTINUE(data.empty());
 
diff --git a/editor/import/editor_scene_importer_gltf.cpp b/editor/import/editor_scene_importer_gltf.cpp
index 7cdac7da33..daa423e1d9 100644
--- a/editor/import/editor_scene_importer_gltf.cpp
+++ b/editor/import/editor_scene_importer_gltf.cpp
@@ -581,7 +581,9 @@ int EditorSceneImporterGLTF::_get_component_type_size(int component_type) {
 		case COMPONENT_TYPE_UNSIGNED_SHORT: return 2; break;
 		case COMPONENT_TYPE_INT: return 4; break;
 		case COMPONENT_TYPE_FLOAT: return 4; break;
-		default: { ERR_FAIL_V(0); }
+		default: {
+			ERR_FAIL_V(0);
+		}
 	}
 	return 0;
 }
@@ -631,7 +633,8 @@ Vector<double> EditorSceneImporterGLTF::_decode_accessor(GLTFState &state, int p
 				element_size = 16; //override for this case
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	Vector<double> dst_buffer;
@@ -1697,6 +1700,22 @@ void EditorSceneImporterGLTF::_assign_scene_names(GLTFState &state) {
 	}
 }
 
+void EditorSceneImporterGLTF::_reparent_skeleton(GLTFState &state, int p_node, Vector<Skeleton *> &skeletons, Node *p_parent_node) {
+	//reparent skeletons to proper place
+	Vector<int> nodes = state.skeleton_nodes[p_node];
+	for (int i = 0; i < nodes.size(); i++) {
+		Skeleton *skeleton = skeletons[nodes[i]];
+		Node *owner = skeleton->get_owner();
+		skeleton->get_parent()->remove_child(skeleton);
+		p_parent_node->add_child(skeleton);
+		skeleton->set_owner(owner);
+		//may have meshes as children, set owner in them too
+		for (int j = 0; j < skeleton->get_child_count(); j++) {
+			skeleton->get_child(j)->set_owner(owner);
+		}
+	}
+}
+
 void EditorSceneImporterGLTF::_generate_node(GLTFState &state, int p_node, Node *p_parent, Node *p_owner, Vector<Skeleton *> &skeletons) {
 	ERR_FAIL_INDEX(p_node, state.nodes.size());
 
@@ -1768,24 +1787,17 @@ void EditorSceneImporterGLTF::_generate_node(GLTFState &state, int p_node, Node
 			_generate_node(state, n->children[i], node, p_owner, skeletons);
 		}
 	}
+
+	if (state.skeleton_nodes.has(p_node)) {
+		_reparent_skeleton(state, p_node, skeletons, node);
+	}
 }
 
 void EditorSceneImporterGLTF::_generate_bone(GLTFState &state, int p_node, Vector<Skeleton *> &skeletons, Node *p_parent_node) {
 	ERR_FAIL_INDEX(p_node, state.nodes.size());
 
 	if (state.skeleton_nodes.has(p_node)) {
-		//reparent skeletons to proper place
-		Vector<int> nodes = state.skeleton_nodes[p_node];
-		for (int i = 0; i < nodes.size(); i++) {
-			Node *owner = skeletons[i]->get_owner();
-			skeletons[i]->get_parent()->remove_child(skeletons[i]);
-			p_parent_node->add_child(skeletons[i]);
-			skeletons[i]->set_owner(owner);
-			//may have meshes as children, set owner in them too
-			for (int j = 0; j < skeletons[i]->get_child_count(); j++) {
-				skeletons[i]->get_child(j)->set_owner(owner);
-			}
-		}
+		_reparent_skeleton(state, p_node, skeletons, p_parent_node);
 	}
 
 	GLTFNode *n = state.nodes[p_node];
diff --git a/editor/import/editor_scene_importer_gltf.h b/editor/import/editor_scene_importer_gltf.h
index 0dff45abaf..ebf20e122a 100644
--- a/editor/import/editor_scene_importer_gltf.h
+++ b/editor/import/editor_scene_importer_gltf.h
@@ -310,6 +310,7 @@ class EditorSceneImporterGLTF : public EditorSceneImporter {
 	Vector<Basis> _decode_accessor_as_basis(GLTFState &state, int p_accessor, bool p_for_vertex);
 	Vector<Transform> _decode_accessor_as_xform(GLTFState &state, int p_accessor, bool p_for_vertex);
 
+	void _reparent_skeleton(GLTFState &state, int p_node, Vector<Skeleton *> &skeletons, Node *p_parent_node);
 	void _generate_bone(GLTFState &state, int p_node, Vector<Skeleton *> &skeletons, Node *p_parent_node);
 	void _generate_node(GLTFState &state, int p_node, Node *p_parent, Node *p_owner, Vector<Skeleton *> &skeletons);
 	void _import_animation(GLTFState &state, AnimationPlayer *ap, int index, int bake_fps, Vector<Skeleton *> skeletons);
diff --git a/editor/import/resource_importer_scene.cpp b/editor/import/resource_importer_scene.cpp
index 5eb1d2ec6c..5ac7bc3bc8 100644
--- a/editor/import/resource_importer_scene.cpp
+++ b/editor/import/resource_importer_scene.cpp
@@ -279,7 +279,24 @@ static String _fixstr(const String &p_what, const String &p_str) {
 	return what;
 }
 
-Node *ResourceImporterScene::_fix_node(Node *p_node, Node *p_root, Map<Ref<ArrayMesh>, Ref<Shape> > &collision_map, LightBakeMode p_light_bake_mode) {
+static void _gen_shape_list(const Ref<Mesh> &mesh, List<Ref<Shape> > &r_shape_list, bool p_convex) {
+
+	if (!p_convex) {
+
+		Ref<Shape> shape = mesh->create_trimesh_shape();
+		r_shape_list.push_back(shape);
+	} else {
+
+		Vector<Ref<Shape> > cd = mesh->convex_decompose();
+		if (cd.size()) {
+			for (int i = 0; i < cd.size(); i++) {
+				r_shape_list.push_back(cd[i]);
+			}
+		}
+	}
+}
+
+Node *ResourceImporterScene::_fix_node(Node *p_node, Node *p_root, Map<Ref<Mesh>, List<Ref<Shape> > > &collision_map, LightBakeMode p_light_bake_mode) {
 
 	// children first
 	for (int i = 0; i < p_node->get_child_count(); i++) {
@@ -365,37 +382,52 @@ Node *ResourceImporterScene::_fix_node(Node *p_node, Node *p_root, Map<Ref<Array
 			return p_node;
 		MeshInstance *mi = Object::cast_to<MeshInstance>(p_node);
 		if (mi) {
-			Node *col = NULL;
-
-			if (_teststr(name, "colonly")) {
-				col = mi->create_trimesh_collision_node();
-				if (col == NULL) {
-					ERR_PRINTS("Error generating collision for mesh: " + name);
-				} else {
-
-					col->set_name(_fixstr(name, "colonly"));
+			Ref<Mesh> mesh = mi->get_mesh();
+
+			if (mesh.is_valid()) {
+				List<Ref<Shape> > shapes;
+				String fixed_name;
+				if (collision_map.has(mesh)) {
+					shapes = collision_map[mesh];
+				} else if (_teststr(name, "colonly")) {
+					_gen_shape_list(mesh, shapes, false);
+					collision_map[mesh] = shapes;
+				} else if (_teststr(name, "convcolonly")) {
+					_gen_shape_list(mesh, shapes, true);
+					collision_map[mesh] = shapes;
 				}
-			} else {
-				col = mi->create_convex_collision_node();
-				if (col == NULL) {
-					ERR_PRINTS("Error generating collision for mesh: " + name);
-				} else {
 
-					col->set_name(_fixstr(name, "convcolonly"));
+				if (_teststr(name, "colonly")) {
+					fixed_name = _fixstr(name, "colonly");
+				} else if (_teststr(name, "convcolonly")) {
+					fixed_name = _fixstr(name, "convcolonly");
 				}
-			}
 
-			if (col) {
-				Object::cast_to<Spatial>(col)->set_transform(mi->get_transform());
-				p_node->replace_by(col);
-				memdelete(p_node);
-				p_node = col;
+				ERR_FAIL_COND_V(fixed_name == String(), NULL);
+
+				if (shapes.size()) {
+
+					StaticBody *col = memnew(StaticBody);
+					col->set_transform(mi->get_transform());
+					col->set_name(fixed_name);
+					p_node->replace_by(col);
+					memdelete(p_node);
+					p_node = col;
+
+					int idx = 0;
+					for (List<Ref<Shape> >::Element *E = shapes.front(); E; E = E->next()) {
 
-				StaticBody *sb = Object::cast_to<StaticBody>(col);
-				CollisionShape *colshape = Object::cast_to<CollisionShape>(sb->get_child(0));
-				colshape->set_name("shape");
-				colshape->set_owner(p_node->get_owner());
+						CollisionShape *cshape = memnew(CollisionShape);
+						cshape->set_shape(E->get());
+						col->add_child(cshape);
+
+						cshape->set_name("shape" + itos(idx));
+						cshape->set_owner(col->get_owner());
+						idx++;
+					}
+				}
 			}
+
 		} else if (p_node->has_meta("empty_draw_type")) {
 			String empty_draw_type = String(p_node->get_meta("empty_draw_type"));
 			StaticBody *sb = memnew(StaticBody);
@@ -434,77 +466,91 @@ Node *ResourceImporterScene::_fix_node(Node *p_node, Node *p_root, Map<Ref<Array
 		if (isroot)
 			return p_node;
 
-		// get mesh instance and bounding box
 		MeshInstance *mi = Object::cast_to<MeshInstance>(p_node);
-		AABB aabb = mi->get_aabb();
-
-		// create a new rigid body collision node
-		RigidBody *rigid_body = memnew(RigidBody);
-		Node *col = rigid_body;
-		ERR_FAIL_COND_V(!col, NULL);
-
-		// remove node name postfix
-		col->set_name(_fixstr(name, "rigid"));
-		// get mesh instance xform matrix to the rigid body collision node
-		Object::cast_to<Spatial>(col)->set_transform(mi->get_transform());
-		// save original node by duplicating it into a new instance and correcting the name
-		Node *mesh = p_node->duplicate();
-		mesh->set_name(_fixstr(name, "rigid"));
-		// reset the xform matrix of the duplicated node so it can inherit parent node xform
-		Object::cast_to<Spatial>(mesh)->set_transform(Transform(Basis()));
-		// reparent the new mesh node to the rigid body collision node
-		p_node->add_child(mesh);
-		mesh->set_owner(p_node->get_owner());
-		// replace the original node with the rigid body collision node
-		p_node->replace_by(col);
-		memdelete(p_node);
-		p_node = col;
-
-		// create an alias for the rigid body collision node
-		RigidBody *rb = Object::cast_to<RigidBody>(col);
-		// create a new Box collision shape and set the right extents
-		Ref<BoxShape> shape = memnew(BoxShape);
-		shape->set_extents(aabb.get_size() * 0.5);
-		CollisionShape *colshape = memnew(CollisionShape);
-		colshape->set_name("shape");
-		colshape->set_shape(shape);
-		// reparent the new collision shape to the rigid body collision node
-		rb->add_child(colshape);
-		colshape->set_owner(p_node->get_owner());
+		Ref<Mesh> mesh = mi->get_mesh();
+
+		if (mesh.is_valid()) {
+			List<Ref<Shape> > shapes;
+			if (collision_map.has(mesh)) {
+				shapes = collision_map[mesh];
+			} else {
+				_gen_shape_list(mesh, shapes, true);
+			}
+
+			RigidBody *rigid_body = memnew(RigidBody);
+			rigid_body->set_name(_fixstr(name, "rigid"));
+			p_node->replace_by(rigid_body);
+			rigid_body->set_transform(mi->get_transform());
+			p_node = rigid_body;
+			mi->set_name("mesh");
+			mi->set_transform(Transform());
+			rigid_body->add_child(mi);
+			mi->set_owner(rigid_body->get_owner());
+
+			int idx = 0;
+			for (List<Ref<Shape> >::Element *E = shapes.front(); E; E = E->next()) {
+
+				CollisionShape *cshape = memnew(CollisionShape);
+				cshape->set_shape(E->get());
+				rigid_body->add_child(cshape);
+
+				cshape->set_name("shape" + itos(idx));
+				cshape->set_owner(p_node->get_owner());
+				idx++;
+			}
+		}
 
 	} else if ((_teststr(name, "col") || (_teststr(name, "convcol"))) && Object::cast_to<MeshInstance>(p_node)) {
 
 		MeshInstance *mi = Object::cast_to<MeshInstance>(p_node);
-		Node *col;
 
-		if (_teststr(name, "col")) {
-			String new_name = _fixstr(name, "col");
-			if (mi->get_parent() && !mi->get_parent()->has_node(new_name)) {
-				mi->set_name(new_name);
+		Ref<Mesh> mesh = mi->get_mesh();
+
+		if (mesh.is_valid()) {
+			List<Ref<Shape> > shapes;
+			String fixed_name;
+			if (collision_map.has(mesh)) {
+				shapes = collision_map[mesh];
+			} else if (_teststr(name, "col")) {
+				_gen_shape_list(mesh, shapes, false);
+				collision_map[mesh] = shapes;
+			} else if (_teststr(name, "convcol")) {
+				_gen_shape_list(mesh, shapes, true);
+				collision_map[mesh] = shapes;
 			}
-			col = mi->create_trimesh_collision_node();
-			ERR_FAIL_COND_V(!col, NULL);
 
-			col->set_name("col");
-		} else {
-			String new_name = _fixstr(name, "convcol");
-			if (mi->get_parent() && !mi->get_parent()->has_node(new_name)) {
-				mi->set_name(new_name);
+			if (_teststr(name, "col")) {
+				fixed_name = _fixstr(name, "col");
+			} else if (_teststr(name, "convcol")) {
+				fixed_name = _fixstr(name, "convcol");
 			}
-			col = mi->create_convex_collision_node();
-			ERR_FAIL_COND_V(!col, NULL);
 
-			col->set_name("convcol");
-		}
+			if (fixed_name != String()) {
+				if (mi->get_parent() && !mi->get_parent()->has_node(fixed_name)) {
+					mi->set_name(fixed_name);
+				}
+			}
+
+			if (shapes.size()) {
+				StaticBody *col = memnew(StaticBody);
+				col->set_name("static_collision");
+				mi->add_child(col);
+				col->set_owner(mi->get_owner());
+
+				int idx = 0;
+				for (List<Ref<Shape> >::Element *E = shapes.front(); E; E = E->next()) {
+
+					CollisionShape *cshape = memnew(CollisionShape);
+					cshape->set_shape(E->get());
+					col->add_child(cshape);
 
-		p_node->add_child(col);
+					cshape->set_name("shape" + itos(idx));
+					cshape->set_owner(p_node->get_owner());
 
-		StaticBody *sb = Object::cast_to<StaticBody>(col);
-		CollisionShape *colshape = Object::cast_to<CollisionShape>(sb->get_child(0));
-		colshape->set_name("shape");
-		col->add_child(colshape);
-		colshape->set_owner(p_node->get_owner());
-		sb->set_owner(p_node->get_owner());
+					idx++;
+				}
+			}
+		}
 
 	} else if (_teststr(name, "navmesh") && Object::cast_to<MeshInstance>(p_node)) {
 
@@ -574,48 +620,35 @@ Node *ResourceImporterScene::_fix_node(Node *p_node, Node *p_root, Map<Ref<Array
 		Ref<ArrayMesh> mesh = mi->get_mesh();
 		if (!mesh.is_null()) {
 
-			if (_teststr(mesh->get_name(), "col") || _teststr(mesh->get_name(), "convcol")) {
-				Ref<Shape> shape;
-				if (_teststr(mesh->get_name(), "col")) {
-					mesh->set_name(_fixstr(mesh->get_name(), "col"));
-
-					if (collision_map.has(mesh)) {
-						shape = collision_map[mesh];
-
-					} else {
-
-						shape = mesh->create_trimesh_shape();
-						if (!shape.is_null())
-							collision_map[mesh] = shape;
-					}
-				} else if (_teststr(mesh->get_name(), "convcol")) {
-					mesh->set_name(_fixstr(mesh->get_name(), "convcol"));
-
-					if (collision_map.has(mesh)) {
-						shape = collision_map[mesh];
+			List<Ref<Shape> > shapes;
+			if (collision_map.has(mesh)) {
+				shapes = collision_map[mesh];
+			} else if (_teststr(mesh->get_name(), "col")) {
+				_gen_shape_list(mesh, shapes, false);
+				collision_map[mesh] = shapes;
+				mesh->set_name(_fixstr(mesh->get_name(), "col"));
+			} else if (_teststr(mesh->get_name(), "convcol")) {
+				_gen_shape_list(mesh, shapes, true);
+				collision_map[mesh] = shapes;
+				mesh->set_name(_fixstr(mesh->get_name(), "convcol"));
+			}
 
-					} else {
+			if (shapes.size()) {
+				StaticBody *col = memnew(StaticBody);
+				col->set_name("static_collision");
+				p_node->add_child(col);
+				col->set_owner(p_node->get_owner());
 
-						shape = mesh->create_convex_shape();
-						if (!shape.is_null())
-							collision_map[mesh] = shape;
-					}
-				}
+				int idx = 0;
+				for (List<Ref<Shape> >::Element *E = shapes.front(); E; E = E->next()) {
 
-				if (!shape.is_null()) {
-					StaticBody *col = memnew(StaticBody);
 					CollisionShape *cshape = memnew(CollisionShape);
-					cshape->set_shape(shape);
+					cshape->set_shape(E->get());
 					col->add_child(cshape);
 
-					col->set_transform(mi->get_transform());
-					col->set_name(mi->get_name());
-					p_node->replace_by(col);
-					memdelete(p_node);
-					p_node = col;
-
-					cshape->set_name("shape");
+					cshape->set_name("shape" + itos(idx));
 					cshape->set_owner(p_node->get_owner());
+					idx++;
 				}
 			}
 		}
@@ -675,6 +708,10 @@ void ResourceImporterScene::_create_clips(Node *scene, const Array &p_clips, boo
 								default_anim->transform_track_interpolate(j, from, &p, &q, &s);
 								new_anim->transform_track_insert_key(dtrack, 0, p, q, s);
 							}
+							if (default_anim->track_get_type(j) == Animation::TYPE_VALUE) {
+								Variant var = default_anim->value_track_interpolate(j, from);
+								new_anim->track_insert_key(dtrack, 0, var);
+							}
 						}
 					}
 
@@ -685,6 +722,10 @@ void ResourceImporterScene::_create_clips(Node *scene, const Array &p_clips, boo
 						default_anim->transform_track_get_key(j, k, &p, &q, &s);
 						new_anim->transform_track_insert_key(dtrack, kt - from, p, q, s);
 					}
+					if (default_anim->track_get_type(j) == Animation::TYPE_VALUE) {
+						Variant var = default_anim->track_get_key_value(j, k);
+						new_anim->track_insert_key(dtrack, kt - from, var);
+					}
 				}
 
 				if (dtrack != -1 && kt >= to) {
@@ -696,6 +737,10 @@ void ResourceImporterScene::_create_clips(Node *scene, const Array &p_clips, boo
 						default_anim->transform_track_interpolate(j, to, &p, &q, &s);
 						new_anim->transform_track_insert_key(dtrack, to - from, p, q, s);
 					}
+					if (default_anim->track_get_type(j) == Animation::TYPE_VALUE) {
+						Variant var = default_anim->value_track_interpolate(j, to);
+						new_anim->track_insert_key(dtrack, to - from, var);
+					}
 				}
 			}
 
@@ -713,6 +758,12 @@ void ResourceImporterScene::_create_clips(Node *scene, const Array &p_clips, boo
 					default_anim->transform_track_interpolate(j, to, &p, &q, &s);
 					new_anim->transform_track_insert_key(dtrack, to - from, p, q, s);
 				}
+				if (default_anim->track_get_type(j) == Animation::TYPE_VALUE) {
+					Variant var = default_anim->value_track_interpolate(j, from);
+					new_anim->track_insert_key(dtrack, 0, var);
+					Variant to_var = default_anim->value_track_interpolate(j, to);
+					new_anim->track_insert_key(dtrack, to - from, to_var);
+				}
 			}
 		}
 
@@ -942,6 +993,7 @@ void ResourceImporterScene::_make_external_resources(Node *p_node, const String
 									old_anim->copy_track(i, anim);
 								}
 							}
+							anim->set_loop(old_anim->has_loop());
 						}
 					}
 
@@ -1093,7 +1145,7 @@ void ResourceImporterScene::get_import_options(List<ImportOption> *r_options, in
 	r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "animation/import", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), true));
 	r_options->push_back(ImportOption(PropertyInfo(Variant::REAL, "animation/fps", PROPERTY_HINT_RANGE, "1,120,1"), 15));
 	r_options->push_back(ImportOption(PropertyInfo(Variant::STRING, "animation/filter_script", PROPERTY_HINT_MULTILINE_TEXT), ""));
-	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "animation/storage", PROPERTY_HINT_ENUM, "Built-In,Files"), animations_out ? true : false));
+	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "animation/storage", PROPERTY_HINT_ENUM, "Built-In,Files", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), animations_out ? true : false));
 	r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "animation/keep_custom_tracks"), animations_out ? true : false));
 	r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "animation/optimizer/enabled", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_UPDATE_ALL_IF_MODIFIED), true));
 	r_options->push_back(ImportOption(PropertyInfo(Variant::REAL, "animation/optimizer/max_linear_error"), 0.05));
@@ -1256,7 +1308,10 @@ Error ResourceImporterScene::import(const String &p_source_file, const String &p
 		Object::cast_to<Spatial>(scene)->scale(Vector3(root_scale, root_scale, root_scale));
 	}
 
-	scene->set_name(p_options["nodes/root_name"]);
+	if (p_options["nodes/root_name"] != "Scene Root")
+		scene->set_name(p_options["nodes/root_name"]);
+	else
+		scene->set_name(p_save_path.get_file().get_basename());
 
 	err = OK;
 
@@ -1268,7 +1323,7 @@ Error ResourceImporterScene::import(const String &p_source_file, const String &p
 	float anim_optimizer_maxang = p_options["animation/optimizer/max_angle"];
 	int light_bake_mode = p_options["meshes/light_baking"];
 
-	Map<Ref<ArrayMesh>, Ref<Shape> > collision_map;
+	Map<Ref<Mesh>, List<Ref<Shape> > > collision_map;
 
 	scene = _fix_node(scene, scene, collision_map, LightBakeMode(light_bake_mode));
 
diff --git a/editor/import/resource_importer_scene.h b/editor/import/resource_importer_scene.h
index 99f8b1a8e0..b10c4da2e5 100644
--- a/editor/import/resource_importer_scene.h
+++ b/editor/import/resource_importer_scene.h
@@ -146,7 +146,7 @@ public:
 
 	void _make_external_resources(Node *p_node, const String &p_base_path, bool p_make_animations, bool p_keep_animations, bool p_make_materials, bool p_keep_materials, bool p_make_meshes, Map<Ref<Animation>, Ref<Animation> > &p_animations, Map<Ref<Material>, Ref<Material> > &p_materials, Map<Ref<ArrayMesh>, Ref<ArrayMesh> > &p_meshes);
 
-	Node *_fix_node(Node *p_node, Node *p_root, Map<Ref<ArrayMesh>, Ref<Shape> > &collision_map, LightBakeMode p_light_bake_mode);
+	Node *_fix_node(Node *p_node, Node *p_root, Map<Ref<Mesh>, List<Ref<Shape> > > &collision_map, LightBakeMode p_light_bake_mode);
 
 	void _create_clips(Node *scene, const Array &p_clips, bool p_bake_all);
 	void _filter_anim_tracks(Ref<Animation> anim, Set<String> &keep);
diff --git a/editor/import/resource_importer_texture_atlas.cpp b/editor/import/resource_importer_texture_atlas.cpp
new file mode 100644
index 0000000000..35fdd32e2c
--- /dev/null
+++ b/editor/import/resource_importer_texture_atlas.cpp
@@ -0,0 +1,382 @@
+#include "resource_importer_texture_atlas.h"
+
+#include "atlas_import_failed.xpm"
+#include "core/io/image_loader.h"
+#include "core/io/resource_saver.h"
+#include "core/os/file_access.h"
+#include "editor/editor_atlas_packer.h"
+#include "scene/resources/mesh.h"
+#include "scene/resources/texture.h"
+
+String ResourceImporterTextureAtlas::get_importer_name() const {
+
+	return "texture_atlas";
+}
+
+String ResourceImporterTextureAtlas::get_visible_name() const {
+
+	return "TextureAtlas";
+}
+void ResourceImporterTextureAtlas::get_recognized_extensions(List<String> *p_extensions) const {
+
+	ImageLoader::get_recognized_extensions(p_extensions);
+}
+
+String ResourceImporterTextureAtlas::get_save_extension() const {
+	return "res";
+}
+
+String ResourceImporterTextureAtlas::get_resource_type() const {
+
+	return "Texture";
+}
+
+bool ResourceImporterTextureAtlas::get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const {
+
+	return true;
+}
+
+int ResourceImporterTextureAtlas::get_preset_count() const {
+	return 0;
+}
+String ResourceImporterTextureAtlas::get_preset_name(int p_idx) const {
+
+	return String();
+}
+
+void ResourceImporterTextureAtlas::get_import_options(List<ImportOption> *r_options, int p_preset) const {
+
+	r_options->push_back(ImportOption(PropertyInfo(Variant::STRING, "atlas_file", PROPERTY_HINT_SAVE_FILE, "*.png"), ""));
+	r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "import_mode", PROPERTY_HINT_ENUM, "Region,Mesh2D"), 0));
+}
+
+String ResourceImporterTextureAtlas::get_option_group_file() const {
+	return "atlas_file";
+}
+
+Error ResourceImporterTextureAtlas::import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files, Variant *r_metadata) {
+
+	/* If this happens, it's because the atlas_file field was not filled, so just import a broken texture */
+
+	//use an xpm because it's size independent, the editor images are vector and size dependent
+	//it's a simple hack
+	Ref<Image> broken = memnew(Image((const char **)atlas_import_failed_xpm));
+	Ref<ImageTexture> broken_texture;
+	broken_texture.instance();
+	broken_texture->create_from_image(broken);
+
+	String target_file = p_save_path + ".tex";
+
+	ResourceSaver::save(target_file, broken_texture);
+
+	return OK;
+}
+
+static void _plot_triangle(Vector2 *vertices, const Vector2 &p_offset, bool p_transposed, Ref<Image> p_image, const Ref<Image> &p_src_image) {
+
+	int width = p_image->get_width();
+	int height = p_image->get_height();
+	int src_width = p_src_image->get_width();
+	int src_height = p_src_image->get_height();
+
+	int x[3];
+	int y[3];
+
+	for (int j = 0; j < 3; j++) {
+
+		x[j] = vertices[j].x;
+		y[j] = vertices[j].y;
+	}
+
+	// sort the points vertically
+	if (y[1] > y[2]) {
+		SWAP(x[1], x[2]);
+		SWAP(y[1], y[2]);
+	}
+	if (y[0] > y[1]) {
+		SWAP(x[0], x[1]);
+		SWAP(y[0], y[1]);
+	}
+	if (y[1] > y[2]) {
+		SWAP(x[1], x[2]);
+		SWAP(y[1], y[2]);
+	}
+
+	double dx_far = double(x[2] - x[0]) / (y[2] - y[0] + 1);
+	double dx_upper = double(x[1] - x[0]) / (y[1] - y[0] + 1);
+	double dx_low = double(x[2] - x[1]) / (y[2] - y[1] + 1);
+	double xf = x[0];
+	double xt = x[0] + dx_upper; // if y[0] == y[1], special case
+	for (int yi = y[0]; yi <= (y[2] > height - 1 ? height - 1 : y[2]); yi++) {
+		if (yi >= 0) {
+			for (int xi = (xf > 0 ? int(xf) : 0); xi <= (xt < width ? xt : width - 1); xi++) {
+
+				int px = xi, py = yi;
+				int sx = px, sy = py;
+				sx = CLAMP(sx, 0, src_width);
+				sy = CLAMP(sy, 0, src_height);
+				Color color = p_src_image->get_pixel(sx, sy);
+				if (p_transposed) {
+					SWAP(px, py);
+				}
+				px += p_offset.x;
+				py += p_offset.y;
+
+				//may have been cropped, so don't blit what is not visible?
+				if (px < 0 || px >= width) {
+					continue;
+				}
+				if (py < 0 || py >= height) {
+					continue;
+				}
+				p_image->set_pixel(px, py, color);
+			}
+
+			for (int xi = (xf < width ? int(xf) : width - 1); xi >= (xt > 0 ? xt : 0); xi--) {
+				int px = xi, py = yi;
+				int sx = px, sy = py;
+				sx = CLAMP(sx, 0, src_width);
+				sy = CLAMP(sy, 0, src_height);
+				Color color = p_src_image->get_pixel(sx, sy);
+				if (p_transposed) {
+					SWAP(px, py);
+				}
+				px += p_offset.x;
+				py += p_offset.y;
+
+				//may have been cropped, so don't blit what is not visible?
+				if (px < 0 || px >= width) {
+					continue;
+				}
+				if (py < 0 || py >= height) {
+					continue;
+				}
+				p_image->set_pixel(px, py, color);
+			}
+		}
+		xf += dx_far;
+		if (yi < y[1])
+			xt += dx_upper;
+		else
+			xt += dx_low;
+	}
+}
+
+Error ResourceImporterTextureAtlas::import_group_file(const String &p_group_file, const Map<String, Map<StringName, Variant> > &p_source_file_options, const Map<String, String> &p_base_paths) {
+
+	ERR_FAIL_COND_V(p_source_file_options.size() == 0, ERR_BUG); //should never happen
+
+	Vector<EditorAtlasPacker::Chart> charts;
+	Vector<PackData> pack_data_files;
+
+	pack_data_files.resize(p_source_file_options.size());
+
+	int idx = 0;
+	for (const Map<String, Map<StringName, Variant> >::Element *E = p_source_file_options.front(); E; E = E->next(), idx++) {
+
+		PackData &pack_data = pack_data_files.write[idx];
+		String source = E->key();
+		const Map<StringName, Variant> &options = E->get();
+
+		Ref<Image> image;
+		image.instance();
+		Error err = ImageLoader::load_image(source, image);
+		ERR_CONTINUE(err != OK);
+
+		pack_data.image = image;
+
+		int mode = options["import_mode"];
+
+		if (mode == IMPORT_MODE_REGION) {
+
+			pack_data.is_mesh = false;
+
+			EditorAtlasPacker::Chart chart;
+
+			//clip a region from the image
+			Rect2 used_rect = image->get_used_rect();
+			pack_data.region = used_rect;
+
+			chart.vertices.push_back(used_rect.position);
+			chart.vertices.push_back(used_rect.position + Vector2(used_rect.size.x, 0));
+			chart.vertices.push_back(used_rect.position + Vector2(used_rect.size.x, used_rect.size.y));
+			chart.vertices.push_back(used_rect.position + Vector2(0, used_rect.size.y));
+			EditorAtlasPacker::Chart::Face f;
+			f.vertex[0] = 0;
+			f.vertex[1] = 1;
+			f.vertex[2] = 2;
+			chart.faces.push_back(f);
+			f.vertex[0] = 0;
+			f.vertex[1] = 2;
+			f.vertex[2] = 3;
+			chart.faces.push_back(f);
+			chart.can_transpose = false;
+			pack_data.chart_vertices.push_back(chart.vertices);
+			pack_data.chart_pieces.push_back(charts.size());
+			charts.push_back(chart);
+
+		} else {
+			pack_data.is_mesh = true;
+
+			Ref<BitMap> bit_map;
+			bit_map.instance();
+			bit_map->create_from_image_alpha(image);
+			Vector<Vector<Vector2> > polygons = bit_map->clip_opaque_to_polygons(Rect2(0, 0, image->get_width(), image->get_height()));
+
+			for (int j = 0; j < polygons.size(); j++) {
+
+				EditorAtlasPacker::Chart chart;
+				chart.vertices = polygons[j];
+				chart.can_transpose = true;
+
+				Vector<int> poly = Geometry::triangulate_polygon(polygons[j]);
+				for (int i = 0; i < poly.size(); i += 3) {
+
+					EditorAtlasPacker::Chart::Face f;
+					f.vertex[0] = poly[i + 0];
+					f.vertex[1] = poly[i + 1];
+					f.vertex[2] = poly[i + 2];
+					chart.faces.push_back(f);
+				}
+
+				pack_data.chart_pieces.push_back(charts.size());
+				charts.push_back(chart);
+
+				pack_data.chart_vertices.push_back(polygons[j]);
+			}
+		}
+	}
+
+	//pack the charts
+	int atlas_width, atlas_height;
+	EditorAtlasPacker::chart_pack(charts, atlas_width, atlas_height);
+
+	//blit the atlas
+	Ref<Image> new_atlas;
+	new_atlas.instance();
+	new_atlas->create(atlas_width, atlas_height, false, Image::FORMAT_RGBA8);
+
+	new_atlas->lock();
+
+	for (int i = 0; i < pack_data_files.size(); i++) {
+
+		PackData &pack_data = pack_data_files.write[i];
+		pack_data.image->lock();
+		for (int j = 0; j < pack_data.chart_pieces.size(); j++) {
+			const EditorAtlasPacker::Chart &chart = charts[pack_data.chart_pieces[j]];
+			for (int k = 0; k < chart.faces.size(); k++) {
+				Vector2 positions[3];
+				for (int l = 0; l < 3; l++) {
+					int vertex_idx = chart.faces[k].vertex[l];
+					positions[l] = chart.vertices[vertex_idx];
+				}
+
+				_plot_triangle(positions, chart.final_offset, chart.transposed, new_atlas, pack_data.image);
+			}
+		}
+		pack_data.image->unlock();
+	}
+	new_atlas->unlock();
+
+	//save the atlas
+
+	new_atlas->save_png(p_group_file);
+
+	//update cache if existing, else create
+	Ref<Texture> cache;
+	if (ResourceCache::has(p_group_file)) {
+		Resource *resptr = ResourceCache::get(p_group_file);
+		cache.reference_ptr(resptr);
+	} else {
+		Ref<ImageTexture> res_cache;
+		res_cache.instance();
+		res_cache->create_from_image(new_atlas);
+		res_cache->set_path(p_group_file);
+		cache = res_cache;
+	}
+
+	//save the images
+	idx = 0;
+	for (const Map<String, Map<StringName, Variant> >::Element *E = p_source_file_options.front(); E; E = E->next(), idx++) {
+
+		PackData &pack_data = pack_data_files.write[idx];
+
+		Ref<Texture> texture;
+
+		if (!pack_data.is_mesh) {
+			Vector2 offset = charts[pack_data.chart_pieces[0]].vertices[0] + charts[pack_data.chart_pieces[0]].final_offset;
+
+			//region
+			Ref<AtlasTexture> atlas_texture;
+			atlas_texture.instance();
+			atlas_texture->set_atlas(cache);
+			atlas_texture->set_region(Rect2(offset, pack_data.region.size));
+			atlas_texture->set_margin(Rect2(pack_data.region.position, Size2(pack_data.image->get_width(), pack_data.image->get_height()) - pack_data.region.size));
+
+			texture = atlas_texture;
+		} else {
+			Ref<ArrayMesh> mesh;
+			mesh.instance();
+
+			for (int i = 0; i < pack_data.chart_pieces.size(); i++) {
+				const EditorAtlasPacker::Chart &chart = charts[pack_data.chart_pieces[i]];
+				PoolVector<Vector2> vertices;
+				PoolVector<int> indices;
+				PoolVector<Vector2> uvs;
+				int vc = chart.vertices.size();
+				int fc = chart.faces.size();
+				vertices.resize(vc);
+				uvs.resize(vc);
+				indices.resize(fc * 3);
+
+				{
+					PoolVector<Vector2>::Write vw = vertices.write();
+					PoolVector<int>::Write iw = indices.write();
+					PoolVector<Vector2>::Write uvw = uvs.write();
+
+					for (int j = 0; j < vc; j++) {
+						vw[j] = chart.vertices[j];
+						Vector2 uv = chart.vertices[j];
+						if (chart.transposed) {
+							SWAP(uv.x, uv.y);
+						}
+						uv += chart.final_offset;
+						uv /= new_atlas->get_size(); //normalize uv to 0-1 range
+						uvw[j] = uv;
+					}
+
+					for (int j = 0; j < fc; j++) {
+						iw[j * 3 + 0] = chart.faces[j].vertex[0];
+						iw[j * 3 + 1] = chart.faces[j].vertex[1];
+						iw[j * 3 + 2] = chart.faces[j].vertex[2];
+					}
+				}
+
+				Array arrays;
+				arrays.resize(Mesh::ARRAY_MAX);
+				arrays[Mesh::ARRAY_VERTEX] = vertices;
+				arrays[Mesh::ARRAY_TEX_UV] = uvs;
+				arrays[Mesh::ARRAY_INDEX] = indices;
+
+				mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, arrays);
+			}
+
+			Ref<MeshTexture> mesh_texture;
+			mesh_texture.instance();
+			mesh_texture->set_base_texture(cache);
+			mesh_texture->set_image_size(pack_data.image->get_size());
+			mesh_texture->set_mesh(mesh);
+
+			texture = mesh_texture;
+			//mesh
+		}
+
+		String save_path = p_base_paths[E->key()] + ".res";
+		ResourceSaver::save(save_path, texture);
+	}
+
+	return OK;
+}
+
+ResourceImporterTextureAtlas::ResourceImporterTextureAtlas() {
+}
diff --git a/editor/import/resource_importer_texture_atlas.h b/editor/import/resource_importer_texture_atlas.h
new file mode 100644
index 0000000000..62be570dc6
--- /dev/null
+++ b/editor/import/resource_importer_texture_atlas.h
@@ -0,0 +1,42 @@
+#ifndef RESOURCE_IMPORTER_TEXTURE_ATLAS_H
+#define RESOURCE_IMPORTER_TEXTURE_ATLAS_H
+
+#include "core/image.h"
+#include "core/io/resource_importer.h"
+class ResourceImporterTextureAtlas : public ResourceImporter {
+	GDCLASS(ResourceImporterTextureAtlas, ResourceImporter)
+
+	struct PackData {
+		Rect2 region;
+		bool is_mesh;
+		Vector<int> chart_pieces; //one for region, many for mesh
+		Vector<Vector<Vector2> > chart_vertices; //for mesh
+		Ref<Image> image;
+	};
+
+public:
+	enum ImportMode {
+		IMPORT_MODE_REGION,
+		IMPORT_MODE_2D_MESH
+	};
+
+	virtual String get_importer_name() const;
+	virtual String get_visible_name() const;
+	virtual void get_recognized_extensions(List<String> *p_extensions) const;
+	virtual String get_save_extension() const;
+	virtual String get_resource_type() const;
+
+	virtual int get_preset_count() const;
+	virtual String get_preset_name(int p_idx) const;
+
+	virtual void get_import_options(List<ImportOption> *r_options, int p_preset = 0) const;
+	virtual bool get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const;
+	virtual String get_option_group_file() const;
+
+	virtual Error import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files = NULL, Variant *r_metadata = NULL);
+	virtual Error import_group_file(const String &p_group_file, const Map<String, Map<StringName, Variant> > &p_source_file_options, const Map<String, String> &p_base_paths);
+
+	ResourceImporterTextureAtlas();
+};
+
+#endif // RESOURCE_IMPORTER_TEXTURE_ATLAS_H
diff --git a/editor/import/resource_importer_wav.cpp b/editor/import/resource_importer_wav.cpp
index 857d8992fd..fdf1103258 100644
--- a/editor/import/resource_importer_wav.cpp
+++ b/editor/import/resource_importer_wav.cpp
@@ -35,6 +35,9 @@
 #include "core/os/file_access.h"
 #include "scene/resources/audio_stream_sample.h"
 
+const float TRIM_DB_LIMIT = -50;
+const int TRIM_FADE_OUT_FRAMES = 500;
+
 String ResourceImporterWAV::get_importer_name() const {
 
 	return "wav";
@@ -393,11 +396,17 @@ Error ResourceImporterWAV::import(const String &p_source_file, const String &p_s
 	if (trim && !loop && format_channels > 0) {
 
 		int first = 0;
-		int last = (frames * format_channels) - 1;
+		int last = (frames / format_channels) - 1;
 		bool found = false;
-		float limit = Math::db2linear((float)-30);
-		for (int i = 0; i < data.size(); i++) {
-			float amp = Math::abs(data[i]);
+		float limit = Math::db2linear(TRIM_DB_LIMIT);
+
+		for (int i = 0; i < data.size() / format_channels; i++) {
+			float ampChannelSum = 0;
+			for (int j = 0; j < format_channels; j++) {
+				ampChannelSum += Math::abs(data[(i * format_channels) + j]);
+			}
+
+			float amp = Math::abs(ampChannelSum / (float)format_channels);
 
 			if (!found && amp > limit) {
 				first = i;
@@ -409,15 +418,20 @@ Error ResourceImporterWAV::import(const String &p_source_file, const String &p_s
 			}
 		}
 
-		first /= format_channels;
-		last /= format_channels;
-
 		if (first < last) {
-
 			Vector<float> new_data;
-			new_data.resize((last - first + 1) * format_channels);
-			for (int i = first * format_channels; i < (last + 1) * format_channels; i++) {
-				new_data.write[i - first * format_channels] = data[i];
+			new_data.resize((last - first) * format_channels);
+			for (int i = first; i < last; i++) {
+
+				float fadeOutMult = 1;
+
+				if (last - i < TRIM_FADE_OUT_FRAMES) {
+					fadeOutMult = ((float)(last - i - 1) / (float)TRIM_FADE_OUT_FRAMES);
+				}
+
+				for (int j = 0; j < format_channels; j++) {
+					new_data.write[((i - first) * format_channels) + j] = data[(i * format_channels) + j] * fadeOutMult;
+				}
 			}
 
 			data = new_data;
diff --git a/editor/import_dock.cpp b/editor/import_dock.cpp
index 15539ee3db..b307ec649a 100644
--- a/editor/import_dock.cpp
+++ b/editor/import_dock.cpp
@@ -438,6 +438,8 @@ void ImportDock::_reimport() {
 		Error err = config->load(params->paths[i] + ".import");
 		ERR_CONTINUE(err != OK);
 
+		String importer_name = params->importer->get_importer_name();
+
 		if (params->checking) {
 			//update only what edited (checkboxes)
 			for (List<PropertyInfo>::Element *E = params->properties.front(); E; E = E->next()) {
@@ -447,7 +449,7 @@ void ImportDock::_reimport() {
 			}
 		} else {
 			//override entirely
-			config->set_value("remap", "importer", params->importer->get_importer_name());
+			config->set_value("remap", "importer", importer_name);
 			config->erase_section("params");
 
 			for (List<PropertyInfo>::Element *E = params->properties.front(); E; E = E->next()) {
@@ -455,6 +457,19 @@ void ImportDock::_reimport() {
 			}
 		}
 
+		//handle group file
+		Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(importer_name);
+		ERR_CONTINUE(!importer.is_valid());
+		String group_file_property = importer->get_option_group_file();
+		if (group_file_property != String()) {
+			//can import from a group (as in, atlas)
+			ERR_CONTINUE(!params->values.has(group_file_property));
+			String group_file = params->values[group_file_property];
+			config->set_value("remap", "group_file", group_file);
+		} else {
+			config->set_value("remap", "group_file", Variant()); //clear group file if unused
+		}
+
 		config->save(params->paths[i] + ".import");
 	}
 
diff --git a/editor/inspector_dock.cpp b/editor/inspector_dock.cpp
index d711c1717d..8a2393ff60 100644
--- a/editor/inspector_dock.cpp
+++ b/editor/inspector_dock.cpp
@@ -130,8 +130,7 @@ void InspectorDock::_menu_option(int p_option) {
 				ERR_FAIL_INDEX(idx, methods.size());
 				String name = methods[idx].name;
 
-				if (current)
-					current->call(name);
+				current->call(name);
 			}
 		}
 	}
diff --git a/editor/output_strings.cpp b/editor/output_strings.cpp
index 24b44f078f..baabaff9a8 100644
--- a/editor/output_strings.cpp
+++ b/editor/output_strings.cpp
@@ -105,7 +105,8 @@ void OutputStrings::_notification(int p_what) {
 					case LINE_LINK: {
 
 					} break;
-					default: {}
+					default: {
+					}
 				}
 
 				line_ofs.y += font->get_ascent();
diff --git a/editor/plugins/abstract_polygon_2d_editor.cpp b/editor/plugins/abstract_polygon_2d_editor.cpp
index 28f786e99a..1afd7df049 100644
--- a/editor/plugins/abstract_polygon_2d_editor.cpp
+++ b/editor/plugins/abstract_polygon_2d_editor.cpp
@@ -481,6 +481,17 @@ bool AbstractPolygon2DEditor::forward_gui_input(const Ref<InputEvent> &p_event)
 		if (edited_point.valid() && (wip_active || (mm->get_button_mask() & BUTTON_MASK_LEFT))) {
 
 			Vector2 cpoint = _get_node()->get_global_transform().affine_inverse().xform(canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint)));
+
+			//Move the point in a single axis. Should only work when editing a polygon and while holding shift.
+			if (mode == MODE_EDIT && mm->get_shift()) {
+				Vector2 old_point = pre_move_edit.get(selected_point.vertex);
+				if (ABS(cpoint.x - old_point.x) > ABS(cpoint.y - old_point.y)) {
+					cpoint.y = old_point.y;
+				} else {
+					cpoint.x = old_point.x;
+				}
+			}
+
 			edited_point = PosVertex(edited_point, cpoint);
 
 			if (!wip_active) {
@@ -638,6 +649,13 @@ void AbstractPolygon2DEditor::forward_canvas_draw_over_viewport(Control *p_overl
 
 			const Color modulate = vertex == active_point ? Color(0.5, 1, 2) : Color(1, 1, 1);
 			p_overlay->draw_texture(handle, point - handle->get_size() * 0.5, modulate);
+
+			if (vertex == hover_point) {
+				Ref<Font> font = get_font("font", "Label");
+				String num = String::num(vertex.vertex);
+				Size2 num_size = font->get_string_size(num);
+				p_overlay->draw_string(font, point - num_size * 0.5, num, Color(1.0, 1.0, 1.0, 0.5));
+			}
 		}
 	}
 
diff --git a/editor/plugins/animation_blend_space_2d_editor.cpp b/editor/plugins/animation_blend_space_2d_editor.cpp
index 918f3a2149..5e8fb8e059 100644
--- a/editor/plugins/animation_blend_space_2d_editor.cpp
+++ b/editor/plugins/animation_blend_space_2d_editor.cpp
@@ -195,7 +195,7 @@ void AnimationNodeBlendSpace2DEditor::_blend_space_gui_input(const Ref<InputEven
 					//add triangle!
 					if (blend_space->has_triangle(making_triangle[0], making_triangle[1], making_triangle[2])) {
 						making_triangle.clear();
-						EditorNode::get_singleton()->show_warning(TTR("Triangle already exists"));
+						EditorNode::get_singleton()->show_warning(TTR("Triangle already exists."));
 						return;
 					}
 
diff --git a/editor/plugins/animation_blend_tree_editor_plugin.cpp b/editor/plugins/animation_blend_tree_editor_plugin.cpp
index afe2573898..bfee76492b 100644
--- a/editor/plugins/animation_blend_tree_editor_plugin.cpp
+++ b/editor/plugins/animation_blend_tree_editor_plugin.cpp
@@ -80,6 +80,7 @@ void AnimationNodeBlendTreeEditor::_update_options_menu() {
 	}
 	add_node->get_popup()->add_separator();
 	add_node->get_popup()->add_item(TTR("Load..."), MENU_LOAD_FILE);
+	use_popup_menu_position = false;
 }
 
 Size2 AnimationNodeBlendTreeEditor::get_minimum_size() const {
@@ -240,7 +241,7 @@ void AnimationNodeBlendTreeEditor::_update_graph() {
 
 		if (EditorSettings::get_singleton()->get("interface/theme/use_graph_node_headers")) {
 			Ref<StyleBoxFlat> sb = node->get_stylebox("frame", "GraphNode");
-			Color c = sb->get_border_color(MARGIN_TOP);
+			Color c = sb->get_border_color();
 			Color mono_color = ((c.r + c.g + c.b) / 3) < 0.7 ? Color(1.0, 1.0, 1.0) : Color(0.0, 0.0, 0.0);
 			mono_color.a = 0.85;
 			c = mono_color;
@@ -317,7 +318,15 @@ void AnimationNodeBlendTreeEditor::_add_node(int p_idx) {
 		EditorNode::get_singleton()->show_warning(TTR("Output node can't be added to the blend tree."));
 		return;
 	}
-	Point2 instance_pos = graph->get_scroll_ofs() + graph->get_size() * 0.5;
+
+	Point2 instance_pos = graph->get_scroll_ofs();
+	if (use_popup_menu_position) {
+		instance_pos += popup_menu_position;
+	} else {
+		instance_pos += graph->get_size() * 0.5;
+	}
+
+	instance_pos /= graph->get_zoom();
 
 	int base = 1;
 	String name = base_name;
@@ -412,6 +421,40 @@ void AnimationNodeBlendTreeEditor::_delete_request(const String &p_which) {
 	undo_redo->commit_action();
 }
 
+void AnimationNodeBlendTreeEditor::_delete_nodes_request() {
+
+	List<StringName> to_erase;
+
+	for (int i = 0; i < graph->get_child_count(); i++) {
+		GraphNode *gn = Object::cast_to<GraphNode>(graph->get_child(i));
+		if (gn) {
+			if (gn->is_selected() && gn->is_close_button_visible()) {
+				to_erase.push_back(gn->get_name());
+			}
+		}
+	}
+
+	if (to_erase.empty())
+		return;
+
+	undo_redo->create_action(TTR("Delete Node(s)"));
+
+	for (List<StringName>::Element *F = to_erase.front(); F; F = F->next()) {
+		_delete_request(F->get());
+	}
+
+	undo_redo->commit_action();
+}
+
+void AnimationNodeBlendTreeEditor::_popup_request(const Vector2 &p_position) {
+
+	_update_options_menu();
+	use_popup_menu_position = true;
+	popup_menu_position = graph->get_local_mouse_position();
+	add_node->get_popup()->set_position(p_position);
+	add_node->get_popup()->popup();
+}
+
 void AnimationNodeBlendTreeEditor::_node_selected(Object *p_node) {
 
 	GraphNode *gn = Object::cast_to<GraphNode>(p_node);
@@ -730,6 +773,8 @@ void AnimationNodeBlendTreeEditor::_bind_methods() {
 	ClassDB::bind_method("_open_in_editor", &AnimationNodeBlendTreeEditor::_open_in_editor);
 	ClassDB::bind_method("_scroll_changed", &AnimationNodeBlendTreeEditor::_scroll_changed);
 	ClassDB::bind_method("_delete_request", &AnimationNodeBlendTreeEditor::_delete_request);
+	ClassDB::bind_method("_delete_nodes_request", &AnimationNodeBlendTreeEditor::_delete_nodes_request);
+	ClassDB::bind_method("_popup_request", &AnimationNodeBlendTreeEditor::_popup_request);
 	ClassDB::bind_method("_edit_filters", &AnimationNodeBlendTreeEditor::_edit_filters);
 	ClassDB::bind_method("_update_filters", &AnimationNodeBlendTreeEditor::_update_filters);
 	ClassDB::bind_method("_filter_edited", &AnimationNodeBlendTreeEditor::_filter_edited);
@@ -850,6 +895,7 @@ AnimationNodeBlendTreeEditor::AnimationNodeBlendTreeEditor() {
 
 	singleton = this;
 	updating = false;
+	use_popup_menu_position = false;
 
 	graph = memnew(GraphEdit);
 	add_child(graph);
@@ -860,6 +906,8 @@ AnimationNodeBlendTreeEditor::AnimationNodeBlendTreeEditor() {
 	graph->connect("disconnection_request", this, "_disconnection_request", varray(), CONNECT_DEFERRED);
 	graph->connect("node_selected", this, "_node_selected");
 	graph->connect("scroll_offset_changed", this, "_scroll_changed");
+	graph->connect("delete_nodes_request", this, "_delete_nodes_request");
+	graph->connect("popup_request", this, "_popup_request");
 
 	VSeparator *vs = memnew(VSeparator);
 	graph->get_zoom_hbox()->add_child(vs);
@@ -901,7 +949,7 @@ AnimationNodeBlendTreeEditor::AnimationNodeBlendTreeEditor() {
 	filter_dialog->add_child(filter_vbox);
 
 	filter_enabled = memnew(CheckBox);
-	filter_enabled->set_text(TTR("Enable filtering"));
+	filter_enabled->set_text(TTR("Enable Filtering"));
 	filter_enabled->connect("pressed", this, "_filter_toggled");
 	filter_vbox->add_child(filter_enabled);
 
diff --git a/editor/plugins/animation_blend_tree_editor_plugin.h b/editor/plugins/animation_blend_tree_editor_plugin.h
index f2a77cecb4..cb40159a40 100644
--- a/editor/plugins/animation_blend_tree_editor_plugin.h
+++ b/editor/plugins/animation_blend_tree_editor_plugin.h
@@ -51,6 +51,8 @@ class AnimationNodeBlendTreeEditor : public AnimationTreeNodeEditorPlugin {
 	Ref<AnimationNodeBlendTree> blend_tree;
 	GraphEdit *graph;
 	MenuButton *add_node;
+	Vector2 popup_menu_position;
+	bool use_popup_menu_position;
 
 	PanelContainer *error_panel;
 	Label *error_label;
@@ -97,6 +99,8 @@ class AnimationNodeBlendTreeEditor : public AnimationTreeNodeEditorPlugin {
 	void _open_in_editor(const String &p_which);
 	void _anim_selected(int p_index, Array p_options, const String &p_node);
 	void _delete_request(const String &p_which);
+	void _delete_nodes_request();
+	void _popup_request(const Vector2 &p_position);
 
 	bool _update_filters(const Ref<AnimationNode> &anode);
 	void _edit_filters(const String &p_which);
diff --git a/editor/plugins/animation_player_editor_plugin.cpp b/editor/plugins/animation_player_editor_plugin.cpp
index bbaf41e3cc..7c075b5635 100644
--- a/editor/plugins/animation_player_editor_plugin.cpp
+++ b/editor/plugins/animation_player_editor_plugin.cpp
@@ -670,6 +670,7 @@ Dictionary AnimationPlayerEditor::get_state() const {
 	if (EditorNode::get_singleton()->get_edited_scene() && is_visible_in_tree() && player) {
 		d["player"] = EditorNode::get_singleton()->get_edited_scene()->get_path_to(player);
 		d["animation"] = player->get_assigned_animation();
+		d["track_editor_state"] = track_editor->get_state();
 	}
 
 	return d;
@@ -696,6 +697,10 @@ void AnimationPlayerEditor::set_state(const Dictionary &p_state) {
 				_animation_edit();
 			}
 		}
+
+		if (p_state.has("track_editor_state")) {
+			track_editor->set_state(p_state["track_editor_state"]);
+		}
 	}
 }
 
@@ -841,6 +846,12 @@ void AnimationPlayerEditor::_update_player() {
 	onion_skinning->set_disabled(player == NULL);
 	pin->set_disabled(player == NULL);
 
+	if (!player) {
+		AnimationPlayerEditor::singleton->get_track_editor()->update_keying();
+		EditorNode::get_singleton()->update_keying();
+		return;
+	}
+
 	int active_idx = -1;
 	for (List<StringName>::Element *E = animlist.front(); E; E = E->next()) {
 
@@ -853,12 +864,6 @@ void AnimationPlayerEditor::_update_player() {
 			active_idx = animation->get_item_count() - 1;
 	}
 
-	if (!player) {
-		AnimationPlayerEditor::singleton->get_track_editor()->update_keying();
-		EditorNode::get_singleton()->update_keying();
-		return;
-	}
-
 	updating = false;
 	if (active_idx != -1) {
 		animation->select(active_idx);
diff --git a/editor/plugins/animation_state_machine_editor.cpp b/editor/plugins/animation_state_machine_editor.cpp
index cb3e5a8129..f06b4b2828 100644
--- a/editor/plugins/animation_state_machine_editor.cpp
+++ b/editor/plugins/animation_state_machine_editor.cpp
@@ -874,9 +874,9 @@ void AnimationNodeStateMachineEditor::_state_machine_pos_draw() {
 	}
 	to.y = from.y;
 
-	float len = MAX(0.0001, playback->get_current_length());
+	float len = MAX(0.0001, current_length);
 
-	float pos = CLAMP(playback->get_current_play_pos(), 0, len);
+	float pos = CLAMP(play_pos, 0, len);
 	float c = pos / len;
 	Color fg = get_color("font_color", "Label");
 	Color bg = fg;
@@ -1011,7 +1011,8 @@ void AnimationNodeStateMachineEditor::_notification(int p_what) {
 		bool is_playing = false;
 		StringName current_node;
 		StringName blend_from_node;
-		float play_pos = 0;
+		play_pos = 0;
+		current_length = 0;
 
 		if (playback.is_valid()) {
 			tp = playback->get_travel_path();
@@ -1019,6 +1020,7 @@ void AnimationNodeStateMachineEditor::_notification(int p_what) {
 			current_node = playback->get_current_node();
 			blend_from_node = playback->get_blend_from_node();
 			play_pos = playback->get_current_play_pos();
+			current_length = playback->get_current_length();
 		}
 
 		{
@@ -1046,6 +1048,27 @@ void AnimationNodeStateMachineEditor::_notification(int p_what) {
 			state_machine_play_pos->update();
 		}
 
+		{
+			if (current_node != StringName() && state_machine->has_node(current_node)) {
+
+				String next = current_node;
+				Ref<AnimationNodeStateMachine> anodesm = state_machine->get_node(next);
+				Ref<AnimationNodeStateMachinePlayback> current_node_playback;
+
+				while (anodesm.is_valid()) {
+					current_node_playback = AnimationTreeEditor::get_singleton()->get_tree()->get(AnimationTreeEditor::get_singleton()->get_base_path() + next + "/playback");
+					next += "/" + current_node_playback->get_current_node();
+					anodesm = anodesm->get_node(current_node_playback->get_current_node());
+				}
+
+				// when current_node is a state machine, use playback of current_node to set play_pos
+				if (current_node_playback.is_valid()) {
+					play_pos = current_node_playback->get_current_play_pos();
+					current_length = current_node_playback->get_current_length();
+				}
+			}
+		}
+
 		if (last_play_pos != play_pos) {
 
 			last_play_pos = play_pos;
diff --git a/editor/plugins/animation_state_machine_editor.h b/editor/plugins/animation_state_machine_editor.h
index 1c4c06090a..8b0a5a0b00 100644
--- a/editor/plugins/animation_state_machine_editor.h
+++ b/editor/plugins/animation_state_machine_editor.h
@@ -160,6 +160,8 @@ class AnimationNodeStateMachineEditor : public AnimationTreeNodeEditorPlugin {
 	StringName last_current_node;
 	Vector<StringName> last_travel_path;
 	float last_play_pos;
+	float play_pos;
+	float current_length;
 
 	float error_time;
 	String error_text;
diff --git a/editor/plugins/animation_tree_player_editor_plugin.cpp b/editor/plugins/animation_tree_player_editor_plugin.cpp
index e2a44069d9..f5d21ffb26 100644
--- a/editor/plugins/animation_tree_player_editor_plugin.cpp
+++ b/editor/plugins/animation_tree_player_editor_plugin.cpp
@@ -200,7 +200,8 @@ void AnimationTreePlayerEditor::_edit_dialog_changed() {
 			if (anim_tree->transition_node_get_current(edited_node) != edit_option->get_selected())
 				anim_tree->transition_node_set_current(edited_node, edit_option->get_selected());
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -457,7 +458,8 @@ void AnimationTreePlayerEditor::_popup_edit_dialog() {
 				edit_dialog->set_size(Size2(150, 100));
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -555,7 +557,8 @@ void AnimationTreePlayerEditor::_draw_node(const StringName &p_node) {
 						text += "->";
 
 					break;
-				default: {}
+				default: {
+				}
 			}
 			font->draw(ci, ofs + ascofs + Point2(3, 0), text, font_color);
 
@@ -740,7 +743,8 @@ void AnimationTreePlayerEditor::_gui_input(Ref<InputEvent> p_event) {
 						//open editor
 						//_node_edit_property(click_node);
 					} break;
-					default: {}
+					default: {
+					}
 				}
 			}
 			if (mb->get_button_index() == 2) {
@@ -817,7 +821,8 @@ void AnimationTreePlayerEditor::_gui_input(Ref<InputEvent> p_event) {
 						anim_tree->node_set_position(click_node, new_pos);
 
 					} break;
-					default: {}
+					default: {
+					}
 				}
 
 				click_type = CLICK_NONE;
@@ -835,7 +840,7 @@ void AnimationTreePlayerEditor::_gui_input(Ref<InputEvent> p_event) {
 			click_motion = Point2(mm->get_position().x, mm->get_position().y);
 			update();
 		}
-		if ((mm->get_button_mask() & 4 || Input::get_singleton()->is_key_pressed(KEY_SPACE))) {
+		if (mm->get_button_mask() & 4 || Input::get_singleton()->is_key_pressed(KEY_SPACE)) {
 
 			h_scroll->set_value(h_scroll->get_value() - mm->get_relative().x);
 			v_scroll->set_value(v_scroll->get_value() - mm->get_relative().y);
diff --git a/editor/plugins/asset_library_editor_plugin.cpp b/editor/plugins/asset_library_editor_plugin.cpp
index a9e9607bc5..0dfb53b34a 100644
--- a/editor/plugins/asset_library_editor_plugin.cpp
+++ b/editor/plugins/asset_library_editor_plugin.cpp
@@ -175,7 +175,7 @@ void EditorAssetLibraryItemDescription::set_image(int p_type, int p_index, const
 						Ref<Image> overlay = get_icon("PlayOverlay", "EditorIcons")->get_data();
 						Ref<Image> thumbnail = p_image->get_data();
 						thumbnail = thumbnail->duplicate();
-						Point2 overlay_pos = Point2((thumbnail->get_width() - overlay->get_width()) / 2, (thumbnail->get_height() - overlay->get_height()) / 2);
+						Point2 overlay_pos = Point2((thumbnail->get_width() - overlay->get_width() / 2) / 2, (thumbnail->get_height() - overlay->get_height() / 2) / 2);
 
 						// Overlay and thumbnail need the same format for `blend_rect` to work.
 						thumbnail->convert(Image::FORMAT_RGBA8);
@@ -310,15 +310,20 @@ EditorAssetLibraryItemDescription::EditorAssetLibraryItemDescription() {
 
 	description = memnew(RichTextLabel);
 	description->connect("meta_clicked", this, "_link_click");
+	description->set_custom_minimum_size(Size2(440 * EDSCALE, 300 * EDSCALE));
 	desc_bg->add_child(description);
 
+	VBoxContainer *previews_vbox = memnew(VBoxContainer);
+	hbox->add_child(previews_vbox);
+	previews_vbox->add_constant_override("separation", 15 * EDSCALE);
+
 	preview = memnew(TextureRect);
 	preview->set_custom_minimum_size(Size2(640 * EDSCALE, 345 * EDSCALE));
-	hbox->add_child(preview);
+	previews_vbox->add_child(preview);
 
 	previews_bg = memnew(PanelContainer);
-	vbox->add_child(previews_bg);
-	previews_bg->set_custom_minimum_size(Size2(0, 101 * EDSCALE));
+	previews_vbox->add_child(previews_bg);
+	previews_bg->set_custom_minimum_size(Size2(640 * EDSCALE, 101 * EDSCALE));
 
 	previews = memnew(ScrollContainer);
 	previews_bg->add_child(previews);
@@ -454,7 +459,8 @@ void EditorAssetLibraryItemDownload::_notification(int p_what) {
 					progress->set_max(1);
 					progress->set_value(0);
 				} break;
-				default: {}
+				default: {
+				}
 			}
 			prev_status = cstatus;
 		}
@@ -612,7 +618,8 @@ void EditorAssetLibrary::_notification(int p_what) {
 					case HTTPClient::STATUS_BODY: {
 						load_status->set_value(0.4);
 					} break;
-					default: {}
+					default: {
+					}
 				}
 			}
 
@@ -818,7 +825,7 @@ void EditorAssetLibrary::_image_request_completed(int p_status, int p_code, cons
 		_image_update(p_code == HTTPClient::RESPONSE_NOT_MODIFIED, true, p_data, p_queue_id);
 
 	} else {
-		// WARN_PRINTS("Error getting image file from URL: " + image_queue[p_queue_id].image_url);
+		WARN_PRINTS("Error getting image file from URL: " + image_queue[p_queue_id].image_url);
 		Object *obj = ObjectDB::get_instance(image_queue[p_queue_id].target);
 		if (obj) {
 			obj->call("set_image", image_queue[p_queue_id].image_type, image_queue[p_queue_id].image_index, get_icon("DefaultProjectIcon", "EditorIcons"));
diff --git a/editor/plugins/baked_lightmap_editor_plugin.cpp b/editor/plugins/baked_lightmap_editor_plugin.cpp
index d90ff95c1f..d75f06de12 100644
--- a/editor/plugins/baked_lightmap_editor_plugin.cpp
+++ b/editor/plugins/baked_lightmap_editor_plugin.cpp
@@ -50,7 +50,8 @@ void BakedLightmapEditorPlugin::_bake() {
 			case BakedLightmap::BAKE_ERROR_CANT_CREATE_IMAGE:
 				EditorNode::get_singleton()->show_warning(TTR("Failed creating lightmap images, make sure path is writable."));
 				break;
-			default: {}
+			default: {
+			}
 		}
 	}
 }
diff --git a/editor/plugins/canvas_item_editor_plugin.cpp b/editor/plugins/canvas_item_editor_plugin.cpp
index ac05b03ed2..c0f2410636 100644
--- a/editor/plugins/canvas_item_editor_plugin.cpp
+++ b/editor/plugins/canvas_item_editor_plugin.cpp
@@ -84,7 +84,6 @@ public:
 
 		container = memnew(VBoxContainer);
 		add_child(container);
-		//set_child_rect(container);
 
 		child_container = memnew(GridContainer);
 		child_container->set_columns(3);
@@ -99,12 +98,14 @@ public:
 		grid_offset_x->set_min(-SPIN_BOX_GRID_RANGE);
 		grid_offset_x->set_max(SPIN_BOX_GRID_RANGE);
 		grid_offset_x->set_suffix("px");
+		grid_offset_x->set_h_size_flags(SIZE_EXPAND_FILL);
 		child_container->add_child(grid_offset_x);
 
 		grid_offset_y = memnew(SpinBox);
 		grid_offset_y->set_min(-SPIN_BOX_GRID_RANGE);
 		grid_offset_y->set_max(SPIN_BOX_GRID_RANGE);
 		grid_offset_y->set_suffix("px");
+		grid_offset_y->set_h_size_flags(SIZE_EXPAND_FILL);
 		child_container->add_child(grid_offset_y);
 
 		label = memnew(Label);
@@ -116,12 +117,14 @@ public:
 		grid_step_x->set_min(0.01);
 		grid_step_x->set_max(SPIN_BOX_GRID_RANGE);
 		grid_step_x->set_suffix("px");
+		grid_step_x->set_h_size_flags(SIZE_EXPAND_FILL);
 		child_container->add_child(grid_step_x);
 
 		grid_step_y = memnew(SpinBox);
 		grid_step_y->set_min(0.01);
 		grid_step_y->set_max(SPIN_BOX_GRID_RANGE);
 		grid_step_y->set_suffix("px");
+		grid_step_y->set_h_size_flags(SIZE_EXPAND_FILL);
 		child_container->add_child(grid_step_y);
 
 		container->add_child(memnew(HSeparator));
@@ -139,6 +142,7 @@ public:
 		rotation_offset->set_min(-SPIN_BOX_ROTATION_RANGE);
 		rotation_offset->set_max(SPIN_BOX_ROTATION_RANGE);
 		rotation_offset->set_suffix("deg");
+		rotation_offset->set_h_size_flags(SIZE_EXPAND_FILL);
 		child_container->add_child(rotation_offset);
 
 		label = memnew(Label);
@@ -150,6 +154,7 @@ public:
 		rotation_step->set_min(-SPIN_BOX_ROTATION_RANGE);
 		rotation_step->set_max(SPIN_BOX_ROTATION_RANGE);
 		rotation_step->set_suffix("deg");
+		rotation_step->set_h_size_flags(SIZE_EXPAND_FILL);
 		child_container->add_child(rotation_step);
 	}
 
@@ -1072,36 +1077,36 @@ bool CanvasItemEditor::_gui_input_zoom_or_pan(const Ref<InputEvent> &p_event) {
 			}
 		}
 
-		if (drag_type == DRAG_NONE) {
+		if (!panning) {
 			if (b->is_pressed() &&
 					(b->get_button_index() == BUTTON_MIDDLE ||
 							(b->get_button_index() == BUTTON_LEFT && tool == TOOL_PAN) ||
 							(b->get_button_index() == BUTTON_LEFT && !EditorSettings::get_singleton()->get("editors/2d/simple_spacebar_panning") && Input::get_singleton()->is_key_pressed(KEY_SPACE)))) {
 				// Pan the viewport
-				drag_type = DRAG_PAN;
+				panning = true;
 			}
 		}
 
-		if (drag_type == DRAG_PAN) {
+		if (panning) {
 			if (!b->is_pressed()) {
 				// Stop panning the viewport (for any mouse button press)
-				drag_type = DRAG_NONE;
+				panning = false;
 			}
 		}
 	}
 
 	Ref<InputEventKey> k = p_event;
 	if (k.is_valid()) {
-		if (k->get_scancode() == KEY_SPACE && EditorSettings::get_singleton()->get("editors/2d/simple_spacebar_panning")) {
-			if (drag_type == DRAG_NONE) {
+		if (k->get_scancode() == KEY_SPACE && (EditorSettings::get_singleton()->get("editors/2d/simple_spacebar_panning") || drag_type != DRAG_NONE)) {
+			if (!panning) {
 				if (k->is_pressed() && !k->is_echo()) {
 					//Pan the viewport
-					drag_type = DRAG_PAN;
+					panning = true;
 				}
-			} else if (drag_type == DRAG_PAN) {
+			} else if (panning) {
 				if (!k->is_pressed()) {
 					// Stop panning the viewport (for any mouse button press)
-					drag_type = DRAG_NONE;
+					panning = false;
 				}
 			}
 		}
@@ -1109,7 +1114,7 @@ bool CanvasItemEditor::_gui_input_zoom_or_pan(const Ref<InputEvent> &p_event) {
 
 	Ref<InputEventMouseMotion> m = p_event;
 	if (m.is_valid()) {
-		if (drag_type == DRAG_PAN) {
+		if (panning) {
 			// Pan the viewport
 			Point2i relative;
 			if (bool(EditorSettings::get_singleton()->get("editors/2d/warped_mouse_panning"))) {
@@ -1340,6 +1345,10 @@ bool CanvasItemEditor::_gui_input_rotate(const Ref<InputEvent> &p_event) {
 		// Confirms the node rotation
 		if (b.is_valid() && b->get_button_index() == BUTTON_LEFT && !b->is_pressed()) {
 			_commit_canvas_item_state(drag_selection, TTR("Rotate CanvasItem"));
+			if (key_auto_insert_button->is_pressed()) {
+				_insert_animation_keys(false, true, false, true);
+			}
+
 			drag_type = DRAG_NONE;
 			return true;
 		}
@@ -1462,10 +1471,14 @@ bool CanvasItemEditor::_gui_input_anchors(const Ref<InputEvent> &p_event) {
 					if (!use_single_axis || use_y) control->set_anchor(MARGIN_BOTTOM, new_anchor.y, false, false);
 					break;
 				case DRAG_ANCHOR_ALL:
-					if (!use_single_axis || !use_y) control->set_anchor(MARGIN_LEFT, new_anchor.x, false, true);
-					if (!use_single_axis || !use_y) control->set_anchor(MARGIN_RIGHT, new_anchor.x, false, true);
-					if (!use_single_axis || use_y) control->set_anchor(MARGIN_TOP, new_anchor.y, false, true);
-					if (!use_single_axis || use_y) control->set_anchor(MARGIN_BOTTOM, new_anchor.y, false, true);
+					if (!use_single_axis || !use_y) {
+						control->set_anchor(MARGIN_LEFT, new_anchor.x, false, true);
+						control->set_anchor(MARGIN_RIGHT, new_anchor.x, false, true);
+					}
+					if (!use_single_axis || use_y) {
+						control->set_anchor(MARGIN_TOP, new_anchor.y, false, true);
+						control->set_anchor(MARGIN_BOTTOM, new_anchor.y, false, true);
+					}
 					break;
 				default:
 					break;
@@ -1641,6 +1654,9 @@ bool CanvasItemEditor::_gui_input_resize(const Ref<InputEvent> &p_event) {
 		// Confirm resize
 		if (b.is_valid() && b->get_button_index() == BUTTON_LEFT && !b->is_pressed()) {
 			_commit_canvas_item_state(drag_selection, TTR("Resize CanvasItem"));
+			if (key_auto_insert_button->is_pressed()) {
+				_insert_animation_keys(false, false, true, true);
+			}
 			drag_type = DRAG_NONE;
 			viewport->update();
 			return true;
@@ -1747,6 +1763,10 @@ bool CanvasItemEditor::_gui_input_scale(const Ref<InputEvent> &p_event) {
 		// Confirm resize
 		if (b.is_valid() && b->get_button_index() == BUTTON_LEFT && !b->is_pressed()) {
 			_commit_canvas_item_state(drag_selection, TTR("Scale CanvasItem"));
+			if (key_auto_insert_button->is_pressed()) {
+				_insert_animation_keys(false, false, true, true);
+			}
+
 			drag_type = DRAG_NONE;
 			viewport->update();
 			return true;
@@ -1847,11 +1867,14 @@ bool CanvasItemEditor::_gui_input_move(const Ref<InputEvent> &p_event) {
 		}
 
 		// Confirm the move (only if it was moved)
-		if (b.is_valid() && !b->is_pressed() && b->get_button_index() == BUTTON_LEFT && (drag_type == DRAG_MOVE)) {
+		if (b.is_valid() && !b->is_pressed() && b->get_button_index() == BUTTON_LEFT) {
 			if (transform.affine_inverse().xform(b->get_position()) != drag_from) {
 				_commit_canvas_item_state(drag_selection, TTR("Move CanvasItem"), true);
 			}
 
+			if (key_auto_insert_button->is_pressed()) {
+				_insert_animation_keys(true, false, false, true);
+			}
 			drag_type = DRAG_NONE;
 			viewport->update();
 			return true;
@@ -2190,32 +2213,34 @@ bool CanvasItemEditor::_gui_input_hover(const Ref<InputEvent> &p_event) {
 
 void CanvasItemEditor::_gui_input_viewport(const Ref<InputEvent> &p_event) {
 	bool accepted = false;
-	if ((accepted = _gui_input_rulers_and_guides(p_event))) {
-		//printf("Rulers and guides\n");
-	} else if ((accepted = editor->get_editor_plugins_over()->forward_gui_input(p_event))) {
-		//printf("Plugin\n");
-	} else if ((accepted = _gui_input_open_scene_on_double_click(p_event))) {
-		//printf("Open scene on double click\n");
-	} else if ((accepted = _gui_input_anchors(p_event))) {
-		//printf("Anchors\n");
-	} else if ((accepted = _gui_input_scale(p_event))) {
-		//printf("Set scale\n");
-	} else if ((accepted = _gui_input_pivot(p_event))) {
-		//printf("Set pivot\n");
-	} else if ((accepted = _gui_input_resize(p_event))) {
-		//printf("Resize\n");
-	} else if ((accepted = _gui_input_rotate(p_event))) {
-		//printf("Rotate\n");
-	} else if ((accepted = _gui_input_move(p_event))) {
-		//printf("Move\n");
-	} else if ((accepted = _gui_input_zoom_or_pan(p_event))) {
-		//printf("Zoom or pan\n");
-	} else if ((accepted = _gui_input_select(p_event))) {
-		//printf("Selection\n");
-	} else {
-		//printf("Not accepted\n");
+	if (EditorSettings::get_singleton()->get("editors/2d/simple_spacebar_panning") || !Input::get_singleton()->is_key_pressed(KEY_SPACE)) {
+		if ((accepted = _gui_input_rulers_and_guides(p_event))) {
+			//printf("Rulers and guides\n");
+		} else if ((accepted = editor->get_editor_plugins_over()->forward_gui_input(p_event))) {
+			//printf("Plugin\n");
+		} else if ((accepted = _gui_input_open_scene_on_double_click(p_event))) {
+			//printf("Open scene on double click\n");
+		} else if ((accepted = _gui_input_anchors(p_event))) {
+			//printf("Anchors\n");
+		} else if ((accepted = _gui_input_scale(p_event))) {
+			//printf("Set scale\n");
+		} else if ((accepted = _gui_input_pivot(p_event))) {
+			//printf("Set pivot\n");
+		} else if ((accepted = _gui_input_resize(p_event))) {
+			//printf("Resize\n");
+		} else if ((accepted = _gui_input_rotate(p_event))) {
+			//printf("Rotate\n");
+		} else if ((accepted = _gui_input_move(p_event))) {
+			//printf("Move\n");
+		} else if ((accepted = _gui_input_select(p_event))) {
+			//printf("Selection\n");
+		} else {
+			//printf("Not accepted\n");
+		}
 	}
 
+	accepted = (_gui_input_zoom_or_pan(p_event) || accepted);
+
 	if (accepted)
 		accept_event();
 
@@ -2259,8 +2284,6 @@ void CanvasItemEditor::_gui_input_viewport(const Ref<InputEvent> &p_event) {
 		case DRAG_MOVE:
 			c = CURSOR_MOVE;
 			break;
-		case DRAG_PAN:
-			c = CURSOR_DRAG;
 		default:
 			break;
 	}
@@ -2597,6 +2620,7 @@ void CanvasItemEditor::_draw_control_helpers(Control *control) {
 			case DRAG_TOP_LEFT:
 			case DRAG_BOTTOM_LEFT:
 				_draw_margin_at_position(control->get_size().width, parent_transform.xform(Vector2((node_pos_in_parent[0] + node_pos_in_parent[2]) / 2, node_pos_in_parent[3])) + Vector2(0, 5), MARGIN_BOTTOM);
+				FALLTHROUGH;
 			case DRAG_MOVE:
 				start = Vector2(node_pos_in_parent[0], Math::lerp(node_pos_in_parent[1], node_pos_in_parent[3], ratio));
 				end = start - Vector2(control->get_margin(MARGIN_LEFT), 0);
@@ -2611,6 +2635,7 @@ void CanvasItemEditor::_draw_control_helpers(Control *control) {
 			case DRAG_TOP_RIGHT:
 			case DRAG_BOTTOM_RIGHT:
 				_draw_margin_at_position(control->get_size().width, parent_transform.xform(Vector2((node_pos_in_parent[0] + node_pos_in_parent[2]) / 2, node_pos_in_parent[3])) + Vector2(0, 5), MARGIN_BOTTOM);
+				FALLTHROUGH;
 			case DRAG_MOVE:
 				start = Vector2(node_pos_in_parent[2], Math::lerp(node_pos_in_parent[3], node_pos_in_parent[1], ratio));
 				end = start - Vector2(control->get_margin(MARGIN_RIGHT), 0);
@@ -2625,6 +2650,7 @@ void CanvasItemEditor::_draw_control_helpers(Control *control) {
 			case DRAG_TOP_LEFT:
 			case DRAG_TOP_RIGHT:
 				_draw_margin_at_position(control->get_size().height, parent_transform.xform(Vector2(node_pos_in_parent[2], (node_pos_in_parent[1] + node_pos_in_parent[3]) / 2)) + Vector2(5, 0), MARGIN_RIGHT);
+				FALLTHROUGH;
 			case DRAG_MOVE:
 				start = Vector2(Math::lerp(node_pos_in_parent[0], node_pos_in_parent[2], ratio), node_pos_in_parent[1]);
 				end = start - Vector2(0, control->get_margin(MARGIN_TOP));
@@ -2639,6 +2665,7 @@ void CanvasItemEditor::_draw_control_helpers(Control *control) {
 			case DRAG_BOTTOM_LEFT:
 			case DRAG_BOTTOM_RIGHT:
 				_draw_margin_at_position(control->get_size().height, parent_transform.xform(Vector2(node_pos_in_parent[2], (node_pos_in_parent[1] + node_pos_in_parent[3]) / 2) + Vector2(5, 0)), MARGIN_RIGHT);
+				FALLTHROUGH;
 			case DRAG_MOVE:
 				start = Vector2(Math::lerp(node_pos_in_parent[2], node_pos_in_parent[0], ratio), node_pos_in_parent[3]);
 				end = start - Vector2(0, control->get_margin(MARGIN_BOTTOM));
@@ -2828,13 +2855,20 @@ void CanvasItemEditor::_draw_selection() {
 		Point2 bsfrom = transform.xform(drag_from);
 		Point2 bsto = transform.xform(box_selecting_to);
 
-		VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(bsfrom, bsto - bsfrom), Color(0.7, 0.7, 1.0, 0.3));
+		VisualServer::get_singleton()->canvas_item_add_rect(
+				ci,
+				Rect2(bsfrom, bsto - bsfrom),
+				get_color("accent_color", "Editor") * Color(1, 1, 1, 0.375));
 	}
 
-	Color rotate_color(0.4, 0.7, 1.0, 0.8);
 	if (drag_type == DRAG_ROTATE) {
 		// Draw the line when rotating a node
-		viewport->draw_line(transform.xform(drag_rotation_center), transform.xform(drag_to), rotate_color);
+		viewport->draw_line(
+				transform.xform(drag_rotation_center),
+				transform.xform(drag_to),
+				get_color("accent_color", "Editor") * Color(1, 1, 1, 0.6),
+				Math::round(2 * EDSCALE),
+				true);
 	}
 }
 
@@ -3373,6 +3407,7 @@ void CanvasItemEditor::_notification(int p_what) {
 		key_rot_button->set_icon(get_icon("KeyRotation", "EditorIcons"));
 		key_scale_button->set_icon(get_icon("KeyScale", "EditorIcons"));
 		key_insert_button->set_icon(get_icon("Key", "EditorIcons"));
+		key_auto_insert_button->set_icon(get_icon("AutoKey", "EditorIcons"));
 
 		zoom_minus->set_icon(get_icon("ZoomLess", "EditorIcons"));
 		zoom_reset->set_icon(get_icon("ZoomReset", "EditorIcons"));
@@ -3402,7 +3437,7 @@ void CanvasItemEditor::_notification(int p_what) {
 		p->add_separator();
 		p->add_icon_item(get_icon("ControlAlignWide", "EditorIcons"), "Full Rect", ANCHORS_AND_MARGINS_PRESET_WIDE);
 		p->add_separator();
-		p->add_submenu_item(TTR("Anchors only"), "Anchors");
+		p->add_submenu_item(TTR("Anchors Only"), "Anchors");
 		p->set_item_icon(20, get_icon("Anchor", "EditorIcons"));
 
 		anchors_popup->clear();
@@ -3705,6 +3740,77 @@ void CanvasItemEditor::_button_tool_select(int p_index) {
 	tool = (Tool)p_index;
 }
 
+void CanvasItemEditor::_insert_animation_keys(bool p_location, bool p_rotation, bool p_scale, bool p_on_existing) {
+
+	Map<Node *, Object *> &selection = editor_selection->get_selection();
+
+	for (Map<Node *, Object *>::Element *E = selection.front(); E; E = E->next()) {
+
+		CanvasItem *canvas_item = Object::cast_to<CanvasItem>(E->key());
+		if (!canvas_item || !canvas_item->is_visible_in_tree())
+			continue;
+
+		if (canvas_item->get_viewport() != EditorNode::get_singleton()->get_scene_root())
+			continue;
+
+		if (Object::cast_to<Node2D>(canvas_item)) {
+			Node2D *n2d = Object::cast_to<Node2D>(canvas_item);
+
+			if (key_pos && p_location)
+				AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(n2d, "position", n2d->get_position(), p_on_existing);
+			if (key_rot && p_rotation)
+				AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(n2d, "rotation_degrees", Math::rad2deg(n2d->get_rotation()), p_on_existing);
+			if (key_scale && p_scale)
+				AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(n2d, "scale", n2d->get_scale(), p_on_existing);
+
+			if (n2d->has_meta("_edit_bone_") && n2d->get_parent_item()) {
+				//look for an IK chain
+				List<Node2D *> ik_chain;
+
+				Node2D *n = Object::cast_to<Node2D>(n2d->get_parent_item());
+				bool has_chain = false;
+
+				while (n) {
+
+					ik_chain.push_back(n);
+					if (n->has_meta("_edit_ik_")) {
+						has_chain = true;
+						break;
+					}
+
+					if (!n->get_parent_item())
+						break;
+					n = Object::cast_to<Node2D>(n->get_parent_item());
+				}
+
+				if (has_chain && ik_chain.size()) {
+
+					for (List<Node2D *>::Element *F = ik_chain.front(); F; F = F->next()) {
+
+						if (key_pos)
+							AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(F->get(), "position", F->get()->get_position(), p_on_existing);
+						if (key_rot)
+							AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(F->get(), "rotation_degrees", Math::rad2deg(F->get()->get_rotation()), p_on_existing);
+						if (key_scale)
+							AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(F->get(), "scale", F->get()->get_scale(), p_on_existing);
+					}
+				}
+			}
+
+		} else if (Object::cast_to<Control>(canvas_item)) {
+
+			Control *ctrl = Object::cast_to<Control>(canvas_item);
+
+			if (key_pos)
+				AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(ctrl, "rect_position", ctrl->get_position(), p_on_existing);
+			if (key_rot)
+				AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(ctrl, "rect_rotation", ctrl->get_rotation_degrees(), p_on_existing);
+			if (key_scale)
+				AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(ctrl, "rect_size", ctrl->get_size(), p_on_existing);
+		}
+	}
+}
+
 void CanvasItemEditor::_popup_callback(int p_op) {
 
 	last_option = MenuOption(p_op);
@@ -3814,6 +3920,8 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 			viewport->update();
 		} break;
 		case LOCK_SELECTED: {
+			undo_redo->create_action(TTR("Lock Selected"));
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
 				CanvasItem *canvas_item = Object::cast_to<CanvasItem>(E->get());
@@ -3822,12 +3930,18 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 				if (canvas_item->get_viewport() != EditorNode::get_singleton()->get_scene_root())
 					continue;
 
-				canvas_item->set_meta("_edit_lock_", true);
-				emit_signal("item_lock_status_changed");
+				undo_redo->add_do_method(canvas_item, "set_meta", "_edit_lock_", true);
+				undo_redo->add_undo_method(canvas_item, "remove_meta", "_edit_lock_");
+				undo_redo->add_do_method(this, "emit_signal", "item_lock_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_lock_status_changed");
 			}
-			viewport->update();
+			undo_redo->add_do_method(viewport, "update", Variant());
+			undo_redo->add_undo_method(viewport, "update", Variant());
+			undo_redo->commit_action();
 		} break;
 		case UNLOCK_SELECTED: {
+			undo_redo->create_action(TTR("Unlock Selected"));
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
 				CanvasItem *canvas_item = Object::cast_to<CanvasItem>(E->get());
@@ -3836,12 +3950,18 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 				if (canvas_item->get_viewport() != EditorNode::get_singleton()->get_scene_root())
 					continue;
 
-				canvas_item->set_meta("_edit_lock_", Variant());
-				emit_signal("item_lock_status_changed");
+				undo_redo->add_do_method(canvas_item, "remove_meta", "_edit_lock_");
+				undo_redo->add_undo_method(canvas_item, "set_meta", "_edit_lock_", true);
+				undo_redo->add_do_method(this, "emit_signal", "item_lock_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_lock_status_changed");
 			}
-			viewport->update();
+			undo_redo->add_do_method(viewport, "update", Variant());
+			undo_redo->add_undo_method(viewport, "update", Variant());
+			undo_redo->commit_action();
 		} break;
 		case GROUP_SELECTED: {
+			undo_redo->create_action(TTR("Group Selected"));
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
 				CanvasItem *canvas_item = Object::cast_to<CanvasItem>(E->get());
@@ -3850,12 +3970,18 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 				if (canvas_item->get_viewport() != EditorNode::get_singleton()->get_scene_root())
 					continue;
 
-				canvas_item->set_meta("_edit_group_", true);
-				emit_signal("item_group_status_changed");
+				undo_redo->add_do_method(canvas_item, "set_meta", "_edit_group_", true);
+				undo_redo->add_undo_method(canvas_item, "remove_meta", "_edit_group_");
+				undo_redo->add_do_method(this, "emit_signal", "item_group_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_group_status_changed");
 			}
-			viewport->update();
+			undo_redo->add_do_method(viewport, "update", Variant());
+			undo_redo->add_undo_method(viewport, "update", Variant());
+			undo_redo->commit_action();
 		} break;
 		case UNGROUP_SELECTED: {
+			undo_redo->create_action(TTR("Ungroup Selected"));
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
 				CanvasItem *canvas_item = Object::cast_to<CanvasItem>(E->get());
@@ -3864,10 +3990,14 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 				if (canvas_item->get_viewport() != EditorNode::get_singleton()->get_scene_root())
 					continue;
 
-				canvas_item->set_meta("_edit_group_", Variant());
-				emit_signal("item_group_status_changed");
+				undo_redo->add_do_method(canvas_item, "remove_meta", "_edit_group_");
+				undo_redo->add_undo_method(canvas_item, "set_meta", "_edit_group_", true);
+				undo_redo->add_do_method(this, "emit_signal", "item_group_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_group_status_changed");
 			}
-			viewport->update();
+			undo_redo->add_do_method(viewport, "update", Variant());
+			undo_redo->add_undo_method(viewport, "update", Variant());
+			undo_redo->commit_action();
 		} break;
 		case ANCHORS_AND_MARGINS_PRESET_TOP_LEFT: {
 			_set_anchors_and_margins_preset(PRESET_TOP_LEFT);
@@ -3972,73 +4102,7 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 
 			bool existing = p_op == ANIM_INSERT_KEY_EXISTING;
 
-			Map<Node *, Object *> &selection = editor_selection->get_selection();
-
-			for (Map<Node *, Object *>::Element *E = selection.front(); E; E = E->next()) {
-
-				CanvasItem *canvas_item = Object::cast_to<CanvasItem>(E->key());
-				if (!canvas_item || !canvas_item->is_visible_in_tree())
-					continue;
-
-				if (canvas_item->get_viewport() != EditorNode::get_singleton()->get_scene_root())
-					continue;
-
-				if (Object::cast_to<Node2D>(canvas_item)) {
-					Node2D *n2d = Object::cast_to<Node2D>(canvas_item);
-
-					if (key_pos)
-						AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(n2d, "position", n2d->get_position(), existing);
-					if (key_rot)
-						AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(n2d, "rotation_degrees", Math::rad2deg(n2d->get_rotation()), existing);
-					if (key_scale)
-						AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(n2d, "scale", n2d->get_scale(), existing);
-
-					if (n2d->has_meta("_edit_bone_") && n2d->get_parent_item()) {
-						//look for an IK chain
-						List<Node2D *> ik_chain;
-
-						Node2D *n = Object::cast_to<Node2D>(n2d->get_parent_item());
-						bool has_chain = false;
-
-						while (n) {
-
-							ik_chain.push_back(n);
-							if (n->has_meta("_edit_ik_")) {
-								has_chain = true;
-								break;
-							}
-
-							if (!n->get_parent_item())
-								break;
-							n = Object::cast_to<Node2D>(n->get_parent_item());
-						}
-
-						if (has_chain && ik_chain.size()) {
-
-							for (List<Node2D *>::Element *F = ik_chain.front(); F; F = F->next()) {
-
-								if (key_pos)
-									AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(F->get(), "position", F->get()->get_position(), existing);
-								if (key_rot)
-									AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(F->get(), "rotation_degrees", Math::rad2deg(F->get()->get_rotation()), existing);
-								if (key_scale)
-									AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(F->get(), "scale", F->get()->get_scale(), existing);
-							}
-						}
-					}
-
-				} else if (Object::cast_to<Control>(canvas_item)) {
-
-					Control *ctrl = Object::cast_to<Control>(canvas_item);
-
-					if (key_pos)
-						AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(ctrl, "rect_position", ctrl->get_position(), existing);
-					if (key_rot)
-						AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(ctrl, "rect_rotation", ctrl->get_rotation_degrees(), existing);
-					if (key_scale)
-						AnimationPlayerEditor::singleton->get_track_editor()->insert_node_value_key(ctrl, "rect_size", ctrl->get_size(), existing);
-				}
-			}
+			_insert_animation_keys(true, true, true, existing);
 
 		} break;
 		case ANIM_INSERT_POS: {
@@ -4144,6 +4208,14 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 			_focus_selection(p_op);
 
 		} break;
+		case PREVIEW_CANVAS_SCALE: {
+
+			bool preview = view_menu->get_popup()->is_item_checked(view_menu->get_popup()->get_item_index(PREVIEW_CANVAS_SCALE));
+			preview = !preview;
+			VS::get_singleton()->canvas_set_disable_scale(!preview);
+			view_menu->get_popup()->set_item_checked(view_menu->get_popup()->get_item_index(PREVIEW_CANVAS_SCALE), preview);
+
+		} break;
 		case SKELETON_MAKE_BONES: {
 
 			Map<Node *, Object *> &selection = editor_selection->get_selection();
@@ -4162,6 +4234,7 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 				if (!skeleton_show_bones)
 					skeleton_menu->get_popup()->activate_item(skeleton_menu->get_popup()->get_item_index(SKELETON_SHOW_BONES));
 			}
+			_queue_update_bone_list();
 			viewport->update();
 
 		} break;
@@ -4181,6 +4254,7 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 				if (!skeleton_show_bones)
 					skeleton_menu->get_popup()->activate_item(skeleton_menu->get_popup()->get_item_index(SKELETON_SHOW_BONES));
 			}
+			_queue_update_bone_list();
 			viewport->update();
 
 		} break;
@@ -4569,6 +4643,7 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	drag_to = Vector2();
 	dragged_guide_pos = Point2();
 	dragged_guide_index = -1;
+	panning = false;
 
 	bone_last_frame = 0;
 
@@ -4735,28 +4810,29 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	hb->add_child(snap_config_menu);
 	snap_config_menu->set_h_size_flags(SIZE_SHRINK_END);
 	snap_config_menu->set_tooltip(TTR("Snapping Options"));
+	snap_config_menu->set_switch_on_hover(true);
 
 	PopupMenu *p = snap_config_menu->get_popup();
 	p->connect("id_pressed", this, "_popup_callback");
 	p->set_hide_on_checkable_item_selection(false);
-	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_grid", TTR("Snap to grid")), SNAP_USE_GRID);
+	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_grid", TTR("Snap to Grid")), SNAP_USE_GRID);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/use_rotation_snap", TTR("Use Rotation Snap")), SNAP_USE_ROTATION);
 	p->add_shortcut(ED_SHORTCUT("canvas_item_editor/configure_snap", TTR("Configure Snap...")), SNAP_CONFIGURE);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_relative", TTR("Snap Relative")), SNAP_RELATIVE);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/use_pixel_snap", TTR("Use Pixel Snap")), SNAP_USE_PIXEL);
-	p->add_submenu_item(TTR("Smart snapping"), "SmartSnapping");
+	p->add_submenu_item(TTR("Smart Snapping"), "SmartSnapping");
 
 	smartsnap_config_popup = memnew(PopupMenu);
 	p->add_child(smartsnap_config_popup);
 	smartsnap_config_popup->set_name("SmartSnapping");
 	smartsnap_config_popup->connect("id_pressed", this, "_popup_callback");
 	smartsnap_config_popup->set_hide_on_checkable_item_selection(false);
-	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_parent", TTR("Snap to parent")), SNAP_USE_NODE_PARENT);
-	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_anchors", TTR("Snap to node anchor")), SNAP_USE_NODE_ANCHORS);
-	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_sides", TTR("Snap to node sides")), SNAP_USE_NODE_SIDES);
-	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_center", TTR("Snap to node center")), SNAP_USE_NODE_CENTER);
-	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_other_nodes", TTR("Snap to other nodes")), SNAP_USE_OTHER_NODES);
-	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_guides", TTR("Snap to guides")), SNAP_USE_GUIDES);
+	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_parent", TTR("Snap to Parent")), SNAP_USE_NODE_PARENT);
+	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_anchors", TTR("Snap to Node Anchor")), SNAP_USE_NODE_ANCHORS);
+	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_sides", TTR("Snap to Node Sides")), SNAP_USE_NODE_SIDES);
+	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_node_center", TTR("Snap to Node Center")), SNAP_USE_NODE_CENTER);
+	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_other_nodes", TTR("Snap to Other Nodes")), SNAP_USE_OTHER_NODES);
+	smartsnap_config_popup->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/snap_guides", TTR("Snap to Guides")), SNAP_USE_GUIDES);
 
 	hb->add_child(memnew(VSeparator));
 
@@ -4786,6 +4862,7 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	skeleton_menu = memnew(MenuButton);
 	hb->add_child(skeleton_menu);
 	skeleton_menu->set_tooltip(TTR("Skeleton Options"));
+	skeleton_menu->set_switch_on_hover(true);
 
 	p = skeleton_menu->get_popup();
 	p->set_hide_on_checkable_item_selection(false);
@@ -4804,8 +4881,10 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	view_menu->set_text(TTR("View"));
 	hb->add_child(view_menu);
 	view_menu->get_popup()->connect("id_pressed", this, "_popup_callback");
+	view_menu->set_switch_on_hover(true);
 
 	p = view_menu->get_popup();
+	p->set_hide_on_checkable_item_selection(false);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_grid", TTR("Show Grid"), KEY_G), SHOW_GRID);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_helpers", TTR("Show Helpers"), KEY_H), SHOW_HELPERS);
 	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/show_rulers", TTR("Show Rulers"), KEY_R), SHOW_RULERS);
@@ -4817,11 +4896,14 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	p->add_separator();
 	p->add_shortcut(ED_SHORTCUT("canvas_item_editor/center_selection", TTR("Center Selection"), KEY_F), VIEW_CENTER_TO_SELECTION);
 	p->add_shortcut(ED_SHORTCUT("canvas_item_editor/frame_selection", TTR("Frame Selection"), KEY_MASK_SHIFT | KEY_F), VIEW_FRAME_TO_SELECTION);
+	p->add_separator();
+	p->add_check_shortcut(ED_SHORTCUT("canvas_item_editor/preview_canvas_scale", TTR("Preview Canvas Scale"), KEY_MASK_SHIFT | KEY_MASK_CMD | KEY_P), PREVIEW_CANVAS_SCALE);
 
 	presets_menu = memnew(MenuButton);
 	presets_menu->set_text(TTR("Layout"));
 	hb->add_child(presets_menu);
 	presets_menu->hide();
+	presets_menu->set_switch_on_hover(true);
 
 	p = presets_menu->get_popup();
 	p->connect("id_pressed", this, "_popup_callback");
@@ -4842,6 +4924,7 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	key_loc_button->set_pressed(true);
 	key_loc_button->set_focus_mode(FOCUS_NONE);
 	key_loc_button->connect("pressed", this, "_popup_callback", varray(ANIM_INSERT_POS));
+	key_loc_button->set_tooltip(TTR("Translation mask for inserting keys."));
 	animation_hb->add_child(key_loc_button);
 	key_rot_button = memnew(Button);
 	key_rot_button->set_toggle_mode(true);
@@ -4849,26 +4932,36 @@ CanvasItemEditor::CanvasItemEditor(EditorNode *p_editor) {
 	key_rot_button->set_pressed(true);
 	key_rot_button->set_focus_mode(FOCUS_NONE);
 	key_rot_button->connect("pressed", this, "_popup_callback", varray(ANIM_INSERT_ROT));
+	key_rot_button->set_tooltip(TTR("Rotation mask for inserting keys."));
 	animation_hb->add_child(key_rot_button);
 	key_scale_button = memnew(Button);
 	key_scale_button->set_toggle_mode(true);
 	key_scale_button->set_flat(true);
 	key_scale_button->set_focus_mode(FOCUS_NONE);
 	key_scale_button->connect("pressed", this, "_popup_callback", varray(ANIM_INSERT_SCALE));
+	key_scale_button->set_tooltip(TTR("Scale mask for inserting keys."));
 	animation_hb->add_child(key_scale_button);
 	key_insert_button = memnew(Button);
 	key_insert_button->set_flat(true);
 	key_insert_button->set_focus_mode(FOCUS_NONE);
 	key_insert_button->connect("pressed", this, "_popup_callback", varray(ANIM_INSERT_KEY));
-	key_insert_button->set_tooltip(TTR("Insert keys."));
+	key_insert_button->set_tooltip(TTR("Insert keys (based on mask)."));
 	key_insert_button->set_shortcut(ED_SHORTCUT("canvas_item_editor/anim_insert_key", TTR("Insert Key"), KEY_INSERT));
-
 	animation_hb->add_child(key_insert_button);
+	key_auto_insert_button = memnew(Button);
+	key_auto_insert_button->set_flat(true);
+	key_auto_insert_button->set_toggle_mode(true);
+	key_auto_insert_button->set_focus_mode(FOCUS_NONE);
+	//key_auto_insert_button->connect("pressed", this, "_popup_callback", varray(ANIM_INSERT_KEY));
+	key_auto_insert_button->set_tooltip(TTR("Auto insert keys when objects are translated, rotated on scaled (based on mask).\nKeys are only added to existing tracks, no new tracks will be created.\nKeys must be inserted manually for the first time."));
+	key_auto_insert_button->set_shortcut(ED_SHORTCUT("canvas_item_editor/anim_auto_insert_key", TTR("Auto Insert Key")));
+	animation_hb->add_child(key_auto_insert_button);
 
 	animation_menu = memnew(MenuButton);
 	animation_menu->set_text(TTR("Animation"));
 	animation_hb->add_child(animation_menu);
 	animation_menu->get_popup()->connect("id_pressed", this, "_popup_callback");
+	animation_menu->set_switch_on_hover(true);
 
 	p = animation_menu->get_popup();
 
@@ -4922,7 +5015,6 @@ void CanvasItemEditorPlugin::make_visible(bool p_visible) {
 		canvas_item_editor->show();
 		canvas_item_editor->set_physics_process(true);
 		VisualServer::get_singleton()->viewport_set_hide_canvas(editor->get_scene_root()->get_viewport_rid(), false);
-		canvas_item_editor->viewport->grab_focus();
 
 	} else {
 
@@ -5378,7 +5470,7 @@ CanvasItemEditorViewport::CanvasItemEditorViewport(EditorNode *p_node, CanvasIte
 
 	selector = memnew(AcceptDialog);
 	editor->get_gui_base()->add_child(selector);
-	selector->set_title(TTR("Change default type"));
+	selector->set_title(TTR("Change Default Type"));
 	selector->connect("confirmed", this, "_on_change_type_confirmed");
 	selector->connect("popup_hide", this, "_on_change_type_closed");
 
@@ -5415,6 +5507,7 @@ CanvasItemEditorViewport::CanvasItemEditorViewport(EditorNode *p_node, CanvasIte
 	label_desc->add_constant_override("line_spacing", 0);
 	label_desc->hide();
 	editor->get_gui_base()->add_child(label_desc);
+	VS::get_singleton()->canvas_set_disable_scale(true);
 }
 
 CanvasItemEditorViewport::~CanvasItemEditorViewport() {
diff --git a/editor/plugins/canvas_item_editor_plugin.h b/editor/plugins/canvas_item_editor_plugin.h
index 7b6563944e..14ea81f302 100644
--- a/editor/plugins/canvas_item_editor_plugin.h
+++ b/editor/plugins/canvas_item_editor_plugin.h
@@ -171,6 +171,7 @@ private:
 		ANIM_CLEAR_POSE,
 		VIEW_CENTER_TO_SELECTION,
 		VIEW_FRAME_TO_SELECTION,
+		PREVIEW_CANVAS_SCALE,
 		SKELETON_MAKE_BONES,
 		SKELETON_CLEAR_BONES,
 		SKELETON_SHOW_BONES,
@@ -204,8 +205,7 @@ private:
 		DRAG_V_GUIDE,
 		DRAG_H_GUIDE,
 		DRAG_DOUBLE_GUIDE,
-		DRAG_KEY_MOVE,
-		DRAG_PAN
+		DRAG_KEY_MOVE
 	};
 
 	EditorSelection *editor_selection;
@@ -261,6 +261,7 @@ private:
 	bool key_pos;
 	bool key_rot;
 	bool key_scale;
+	bool panning;
 
 	MenuOption last_option;
 
@@ -350,6 +351,7 @@ private:
 	Button *key_rot_button;
 	Button *key_scale_button;
 	Button *key_insert_button;
+	Button *key_auto_insert_button;
 
 	PopupMenu *selection_menu;
 
@@ -421,6 +423,8 @@ private:
 
 	Object *_get_editor_data(Object *p_what);
 
+	void _insert_animation_keys(bool p_location, bool p_rotation, bool p_scale, bool p_on_existing);
+
 	void _keying_changed();
 
 	void _unhandled_key_input(const Ref<InputEvent> &p_ev);
diff --git a/editor/plugins/collision_shape_2d_editor_plugin.cpp b/editor/plugins/collision_shape_2d_editor_plugin.cpp
index 10023d88bf..c8561d22a4 100644
--- a/editor/plugins/collision_shape_2d_editor_plugin.cpp
+++ b/editor/plugins/collision_shape_2d_editor_plugin.cpp
@@ -93,7 +93,7 @@ Variant CollisionShape2DEditor::get_handle_value(int idx) const {
 		case RECTANGLE_SHAPE: {
 			Ref<RectangleShape2D> rect = node->get_shape();
 
-			if (idx < 2) {
+			if (idx < 3) {
 				return rect->get_extents().abs();
 			}
 
@@ -175,12 +175,15 @@ void CollisionShape2DEditor::set_handle(int idx, Point2 &p_point) {
 		} break;
 
 		case RECTANGLE_SHAPE: {
-			if (idx < 2) {
+			if (idx < 3) {
 				Ref<RectangleShape2D> rect = node->get_shape();
 
 				Vector2 extents = rect->get_extents();
-				extents[idx] = p_point[idx];
-
+				if (idx == 2) {
+					extents = p_point;
+				} else {
+					extents[idx] = p_point[idx];
+				}
 				rect->set_extents(extents.abs());
 
 				canvas_item_editor->update_viewport();
@@ -496,13 +499,15 @@ void CollisionShape2DEditor::forward_canvas_draw_over_viewport(Control *p_overla
 		case RECTANGLE_SHAPE: {
 			Ref<RectangleShape2D> shape = node->get_shape();
 
-			handles.resize(2);
+			handles.resize(3);
 			Vector2 ext = shape->get_extents();
 			handles.write[0] = Point2(ext.x, 0);
 			handles.write[1] = Point2(0, -ext.y);
+			handles.write[2] = Point2(ext.x, -ext.y);
 
 			p_overlay->draw_texture(h, gt.xform(handles[0]) - size);
 			p_overlay->draw_texture(h, gt.xform(handles[1]) - size);
+			p_overlay->draw_texture(h, gt.xform(handles[2]) - size);
 
 		} break;
 
diff --git a/editor/plugins/cpu_particles_2d_editor_plugin.cpp b/editor/plugins/cpu_particles_2d_editor_plugin.cpp
new file mode 100644
index 0000000000..1622ce17b2
--- /dev/null
+++ b/editor/plugins/cpu_particles_2d_editor_plugin.cpp
@@ -0,0 +1,308 @@
+/*************************************************************************/
+/*  cpu_particles_2d_editor_plugin.cpp                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "cpu_particles_2d_editor_plugin.h"
+
+#include "canvas_item_editor_plugin.h"
+#include "core/io/image_loader.h"
+#include "scene/2d/cpu_particles_2d.h"
+#include "scene/gui/separator.h"
+#include "scene/resources/particles_material.h"
+
+void CPUParticles2DEditorPlugin::edit(Object *p_object) {
+
+	particles = Object::cast_to<CPUParticles2D>(p_object);
+}
+
+bool CPUParticles2DEditorPlugin::handles(Object *p_object) const {
+
+	return p_object->is_class("CPUParticles2D");
+}
+
+void CPUParticles2DEditorPlugin::make_visible(bool p_visible) {
+
+	if (p_visible) {
+
+		toolbar->show();
+	} else {
+
+		toolbar->hide();
+	}
+}
+
+void CPUParticles2DEditorPlugin::_file_selected(const String &p_file) {
+
+	source_emission_file = p_file;
+	emission_mask->popup_centered_minsize();
+}
+
+void CPUParticles2DEditorPlugin::_menu_callback(int p_idx) {
+
+	switch (p_idx) {
+		case MENU_LOAD_EMISSION_MASK: {
+
+			file->popup_centered_ratio();
+
+		} break;
+		case MENU_CLEAR_EMISSION_MASK: {
+
+			emission_mask->popup_centered_minsize();
+		} break;
+	}
+}
+
+void CPUParticles2DEditorPlugin::_generate_emission_mask() {
+
+	Ref<Image> img;
+	img.instance();
+	Error err = ImageLoader::load_image(source_emission_file, img);
+	ERR_EXPLAIN(TTR("Error loading image:") + " " + source_emission_file);
+	ERR_FAIL_COND(err != OK);
+
+	if (img->is_compressed()) {
+		img->decompress();
+	}
+	img->convert(Image::FORMAT_RGBA8);
+	ERR_FAIL_COND(img->get_format() != Image::FORMAT_RGBA8);
+	Size2i s = Size2(img->get_width(), img->get_height());
+	ERR_FAIL_COND(s.width == 0 || s.height == 0);
+
+	Vector<Point2> valid_positions;
+	Vector<Point2> valid_normals;
+	Vector<uint8_t> valid_colors;
+
+	valid_positions.resize(s.width * s.height);
+
+	EmissionMode emode = (EmissionMode)emission_mask_mode->get_selected();
+
+	if (emode == EMISSION_MODE_BORDER_DIRECTED) {
+		valid_normals.resize(s.width * s.height);
+	}
+
+	bool capture_colors = emission_colors->is_pressed();
+
+	if (capture_colors) {
+		valid_colors.resize(s.width * s.height * 4);
+	}
+
+	int vpc = 0;
+
+	{
+		PoolVector<uint8_t> data = img->get_data();
+		PoolVector<uint8_t>::Read r = data.read();
+
+		for (int i = 0; i < s.width; i++) {
+			for (int j = 0; j < s.height; j++) {
+
+				uint8_t a = r[(j * s.width + i) * 4 + 3];
+
+				if (a > 128) {
+
+					if (emode == EMISSION_MODE_SOLID) {
+
+						if (capture_colors) {
+							valid_colors.write[vpc * 4 + 0] = r[(j * s.width + i) * 4 + 0];
+							valid_colors.write[vpc * 4 + 1] = r[(j * s.width + i) * 4 + 1];
+							valid_colors.write[vpc * 4 + 2] = r[(j * s.width + i) * 4 + 2];
+							valid_colors.write[vpc * 4 + 3] = r[(j * s.width + i) * 4 + 3];
+						}
+						valid_positions.write[vpc++] = Point2(i, j);
+
+					} else {
+
+						bool on_border = false;
+						for (int x = i - 1; x <= i + 1; x++) {
+							for (int y = j - 1; y <= j + 1; y++) {
+
+								if (x < 0 || y < 0 || x >= s.width || y >= s.height || r[(y * s.width + x) * 4 + 3] <= 128) {
+									on_border = true;
+									break;
+								}
+							}
+
+							if (on_border)
+								break;
+						}
+
+						if (on_border) {
+							valid_positions.write[vpc] = Point2(i, j);
+
+							if (emode == EMISSION_MODE_BORDER_DIRECTED) {
+								Vector2 normal;
+								for (int x = i - 2; x <= i + 2; x++) {
+									for (int y = j - 2; y <= j + 2; y++) {
+
+										if (x == i && y == j)
+											continue;
+
+										if (x < 0 || y < 0 || x >= s.width || y >= s.height || r[(y * s.width + x) * 4 + 3] <= 128) {
+											normal += Vector2(x - i, y - j).normalized();
+										}
+									}
+								}
+
+								normal.normalize();
+								valid_normals.write[vpc] = normal;
+							}
+
+							if (capture_colors) {
+								valid_colors.write[vpc * 4 + 0] = r[(j * s.width + i) * 4 + 0];
+								valid_colors.write[vpc * 4 + 1] = r[(j * s.width + i) * 4 + 1];
+								valid_colors.write[vpc * 4 + 2] = r[(j * s.width + i) * 4 + 2];
+								valid_colors.write[vpc * 4 + 3] = r[(j * s.width + i) * 4 + 3];
+							}
+
+							vpc++;
+						}
+					}
+				}
+			}
+		}
+	}
+
+	valid_positions.resize(vpc);
+	if (valid_normals.size()) {
+		valid_normals.resize(vpc);
+	}
+
+	ERR_EXPLAIN(TTR("No pixels with transparency > 128 in image..."));
+	ERR_FAIL_COND(valid_positions.size() == 0);
+
+	if (capture_colors) {
+		PoolColorArray pca;
+		pca.resize(vpc);
+		PoolColorArray::Write pcaw = pca.write();
+		for (int i = 0; i < vpc; i += 1) {
+			Color color;
+			color.r = valid_colors[i * 4 + 0] / 255.0f;
+			color.g = valid_colors[i * 4 + 1] / 255.0f;
+			color.b = valid_colors[i * 4 + 2] / 255.0f;
+			color.a = valid_colors[i * 4 + 3] / 255.0f;
+			pcaw[i] = color;
+		}
+		particles->set_emission_colors(pca);
+	}
+
+	if (valid_normals.size()) {
+		particles->set_emission_shape(CPUParticles2D::EMISSION_SHAPE_DIRECTED_POINTS);
+		PoolVector2Array norms;
+		norms.resize(valid_normals.size());
+		PoolVector2Array::Write normsw = norms.write();
+		for (int i = 0; i < valid_normals.size(); i += 1) {
+			normsw[i] = valid_normals[i];
+		}
+		particles->set_emission_normals(norms);
+	} else {
+		particles->set_emission_shape(CPUParticles2D::EMISSION_SHAPE_POINTS);
+	}
+
+	{
+		PoolVector2Array points;
+		points.resize(valid_positions.size());
+		PoolVector2Array::Write pointsw = points.write();
+		for (int i = 0; i < valid_positions.size(); i += 1) {
+			pointsw[i] = valid_positions[i];
+		}
+		particles->set_emission_points(points);
+	}
+}
+
+void CPUParticles2DEditorPlugin::_notification(int p_what) {
+
+	if (p_what == NOTIFICATION_ENTER_TREE) {
+
+		menu->get_popup()->connect("id_pressed", this, "_menu_callback");
+		menu->set_icon(menu->get_popup()->get_icon("Particles2D", "EditorIcons"));
+		file->connect("file_selected", this, "_file_selected");
+	}
+}
+
+void CPUParticles2DEditorPlugin::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("_menu_callback"), &CPUParticles2DEditorPlugin::_menu_callback);
+	ClassDB::bind_method(D_METHOD("_file_selected"), &CPUParticles2DEditorPlugin::_file_selected);
+	ClassDB::bind_method(D_METHOD("_generate_emission_mask"), &CPUParticles2DEditorPlugin::_generate_emission_mask);
+}
+
+CPUParticles2DEditorPlugin::CPUParticles2DEditorPlugin(EditorNode *p_node) {
+
+	particles = NULL;
+	editor = p_node;
+	undo_redo = editor->get_undo_redo();
+
+	toolbar = memnew(HBoxContainer);
+	add_control_to_container(CONTAINER_CANVAS_EDITOR_MENU, toolbar);
+	toolbar->hide();
+
+	toolbar->add_child(memnew(VSeparator));
+
+	menu = memnew(MenuButton);
+	menu->get_popup()->add_item(TTR("Load Emission Mask"), MENU_LOAD_EMISSION_MASK);
+	//	menu->get_popup()->add_item(TTR("Clear Emission Mask"), MENU_CLEAR_EMISSION_MASK);
+	menu->set_text(TTR("Particles"));
+	menu->set_switch_on_hover(true);
+	toolbar->add_child(menu);
+
+	file = memnew(EditorFileDialog);
+	List<String> ext;
+	ImageLoader::get_recognized_extensions(&ext);
+	for (List<String>::Element *E = ext.front(); E; E = E->next()) {
+		file->add_filter("*." + E->get() + "; " + E->get().to_upper());
+	}
+	file->set_mode(EditorFileDialog::MODE_OPEN_FILE);
+	toolbar->add_child(file);
+
+	epoints = memnew(SpinBox);
+	epoints->set_min(1);
+	epoints->set_max(8192);
+	epoints->set_step(1);
+	epoints->set_value(512);
+	file->get_vbox()->add_margin_child(TTR("Generated Point Count:"), epoints);
+
+	emission_mask = memnew(ConfirmationDialog);
+	emission_mask->set_title(TTR("Load Emission Mask"));
+	VBoxContainer *emvb = memnew(VBoxContainer);
+	emission_mask->add_child(emvb);
+	emission_mask_mode = memnew(OptionButton);
+	emvb->add_margin_child(TTR("Emission Mask"), emission_mask_mode);
+	emission_mask_mode->add_item("Solid Pixels", EMISSION_MODE_SOLID);
+	emission_mask_mode->add_item("Border Pixels", EMISSION_MODE_BORDER);
+	emission_mask_mode->add_item("Directed Border Pixels", EMISSION_MODE_BORDER_DIRECTED);
+	emission_colors = memnew(CheckBox);
+	emission_colors->set_text(TTR("Capture from Pixel"));
+	emvb->add_margin_child(TTR("Emission Colors"), emission_colors);
+
+	toolbar->add_child(emission_mask);
+
+	emission_mask->connect("confirmed", this, "_generate_emission_mask");
+}
+
+CPUParticles2DEditorPlugin::~CPUParticles2DEditorPlugin() {
+}
diff --git a/editor/plugins/cpu_particles_2d_editor_plugin.h b/editor/plugins/cpu_particles_2d_editor_plugin.h
new file mode 100644
index 0000000000..f715abd87b
--- /dev/null
+++ b/editor/plugins/cpu_particles_2d_editor_plugin.h
@@ -0,0 +1,92 @@
+/*************************************************************************/
+/*  cpu_particles_2d_editor_plugin.h                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef CPU_PARTICLES_2D_EDITOR_PLUGIN_H
+#define CPU_PARTICLES_2D_EDITOR_PLUGIN_H
+
+#include "editor/editor_node.h"
+#include "editor/editor_plugin.h"
+#include "scene/2d/collision_polygon_2d.h"
+#include "scene/2d/cpu_particles_2d.h"
+#include "scene/gui/box_container.h"
+#include "scene/gui/file_dialog.h"
+
+class CPUParticles2DEditorPlugin : public EditorPlugin {
+
+	GDCLASS(CPUParticles2DEditorPlugin, EditorPlugin);
+
+	enum {
+		MENU_LOAD_EMISSION_MASK,
+		MENU_CLEAR_EMISSION_MASK
+	};
+
+	enum EmissionMode {
+		EMISSION_MODE_SOLID,
+		EMISSION_MODE_BORDER,
+		EMISSION_MODE_BORDER_DIRECTED
+	};
+
+	CPUParticles2D *particles;
+
+	EditorFileDialog *file;
+	EditorNode *editor;
+
+	HBoxContainer *toolbar;
+	MenuButton *menu;
+
+	SpinBox *epoints;
+
+	ConfirmationDialog *emission_mask;
+	OptionButton *emission_mask_mode;
+	CheckBox *emission_colors;
+
+	String source_emission_file;
+
+	UndoRedo *undo_redo;
+	void _file_selected(const String &p_file);
+	void _menu_callback(int p_idx);
+	void _generate_emission_mask();
+
+protected:
+	void _notification(int p_what);
+	static void _bind_methods();
+
+public:
+	virtual String get_name() const { return "CPUParticles2D"; }
+	bool has_main_screen() const { return false; }
+	virtual void edit(Object *p_object);
+	virtual bool handles(Object *p_object) const;
+	virtual void make_visible(bool p_visible);
+
+	CPUParticles2DEditorPlugin(EditorNode *p_node);
+	~CPUParticles2DEditorPlugin();
+};
+
+#endif // CPU_PARTICLES_2D_EDITOR_PLUGIN_H
diff --git a/editor/plugins/cpu_particles_editor_plugin.cpp b/editor/plugins/cpu_particles_editor_plugin.cpp
index 7222525dd7..70be9b95bb 100644
--- a/editor/plugins/cpu_particles_editor_plugin.cpp
+++ b/editor/plugins/cpu_particles_editor_plugin.cpp
@@ -101,6 +101,7 @@ CPUParticlesEditor::CPUParticlesEditor() {
 	particles_editor_hb = memnew(HBoxContainer);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb);
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	particles_editor_hb->add_child(options);
 	particles_editor_hb->hide();
 
diff --git a/editor/plugins/curve_editor_plugin.cpp b/editor/plugins/curve_editor_plugin.cpp
index 3d76b5da21..55feb40c2c 100644
--- a/editor/plugins/curve_editor_plugin.cpp
+++ b/editor/plugins/curve_editor_plugin.cpp
@@ -53,11 +53,11 @@ CurveEditor::CurveEditor() {
 
 	_presets_menu = memnew(PopupMenu);
 	_presets_menu->set_name("_presets_menu");
-	_presets_menu->add_item(TTR("Flat0"), PRESET_FLAT0);
-	_presets_menu->add_item(TTR("Flat1"), PRESET_FLAT1);
+	_presets_menu->add_item(TTR("Flat 0"), PRESET_FLAT0);
+	_presets_menu->add_item(TTR("Flat 1"), PRESET_FLAT1);
 	_presets_menu->add_item(TTR("Linear"), PRESET_LINEAR);
-	_presets_menu->add_item(TTR("Ease in"), PRESET_EASE_IN);
-	_presets_menu->add_item(TTR("Ease out"), PRESET_EASE_OUT);
+	_presets_menu->add_item(TTR("Ease In"), PRESET_EASE_IN);
+	_presets_menu->add_item(TTR("Ease Out"), PRESET_EASE_OUT);
 	_presets_menu->add_item(TTR("Smoothstep"), PRESET_SMOOTHSTEP);
 	_presets_menu->connect("id_pressed", this, "_on_preset_item_selected");
 	_context_menu->add_child(_presets_menu);
@@ -194,7 +194,7 @@ void CurveEditor::on_gui_input(const Ref<InputEvent> &p_event) {
 					Vector2 dir = (control_pos - point_pos).normalized();
 
 					real_t tangent;
-					if (Math::abs(dir.x) > CMP_EPSILON)
+					if (!Math::is_zero_approx(dir.x))
 						tangent = dir.y / dir.x;
 					else
 						tangent = 9999 * (dir.y >= 0 ? 1 : -1);
@@ -330,10 +330,10 @@ void CurveEditor::open_context_menu(Vector2 pos) {
 	_context_menu->clear();
 
 	if (_curve_ref.is_valid()) {
-		_context_menu->add_item(TTR("Add point"), CONTEXT_ADD_POINT);
+		_context_menu->add_item(TTR("Add Point"), CONTEXT_ADD_POINT);
 
 		if (_selected_point >= 0) {
-			_context_menu->add_item(TTR("Remove point"), CONTEXT_REMOVE_POINT);
+			_context_menu->add_item(TTR("Remove Point"), CONTEXT_REMOVE_POINT);
 
 			if (_selected_tangent != TANGENT_NONE) {
 				_context_menu->add_separator();
@@ -351,12 +351,12 @@ void CurveEditor::open_context_menu(Vector2 pos) {
 					_context_menu->add_separator();
 
 				if (_selected_point > 0) {
-					_context_menu->add_check_item(TTR("Left linear"), CONTEXT_LEFT_LINEAR);
+					_context_menu->add_check_item(TTR("Left Linear"), CONTEXT_LEFT_LINEAR);
 					_context_menu->set_item_checked(_context_menu->get_item_index(CONTEXT_LEFT_LINEAR),
 							_curve_ref->get_point_left_mode(_selected_point) == Curve::TANGENT_LINEAR);
 				}
 				if (_selected_point + 1 < _curve_ref->get_point_count()) {
-					_context_menu->add_check_item(TTR("Right linear"), CONTEXT_RIGHT_LINEAR);
+					_context_menu->add_check_item(TTR("Right Linear"), CONTEXT_RIGHT_LINEAR);
 					_context_menu->set_item_checked(_context_menu->get_item_index(CONTEXT_RIGHT_LINEAR),
 							_curve_ref->get_point_right_mode(_selected_point) == Curve::TANGENT_LINEAR);
 				}
@@ -366,7 +366,7 @@ void CurveEditor::open_context_menu(Vector2 pos) {
 		_context_menu->add_separator();
 	}
 
-	_context_menu->add_submenu_item(TTR("Load preset"), _presets_menu->get_name());
+	_context_menu->add_submenu_item(TTR("Load Preset"), _presets_menu->get_name());
 
 	_context_menu->set_size(Size2(0, 0));
 	_context_menu->popup();
diff --git a/editor/plugins/item_list_editor_plugin.h b/editor/plugins/item_list_editor_plugin.h
index 679235e316..701632e576 100644
--- a/editor/plugins/item_list_editor_plugin.h
+++ b/editor/plugins/item_list_editor_plugin.h
@@ -157,7 +157,7 @@ public:
 	virtual void set_item_enabled(int p_idx, int p_enabled) { pp->set_item_disabled(p_idx, !p_enabled); }
 	virtual bool is_item_enabled(int p_idx) const { return !pp->is_item_disabled(p_idx); }
 
-	virtual void set_item_id(int p_idx, int p_id) { pp->set_item_id(p_idx, p_idx); }
+	virtual void set_item_id(int p_idx, int p_id) { pp->set_item_id(p_idx, p_id); }
 	virtual int get_item_id(int p_idx) const { return pp->get_item_id(p_idx); }
 
 	virtual void set_item_separator(int p_idx, bool p_separator) { pp->set_item_as_separator(p_idx, p_separator); }
diff --git a/editor/plugins/mesh_instance_editor_plugin.cpp b/editor/plugins/mesh_instance_editor_plugin.cpp
index 3e10cdbbfa..635b934333 100644
--- a/editor/plugins/mesh_instance_editor_plugin.cpp
+++ b/editor/plugins/mesh_instance_editor_plugin.cpp
@@ -95,10 +95,7 @@ void MeshInstanceEditor::_menu_option(int p_option) {
 				return;
 			}
 
-			if (trimesh_shape)
-				ur->create_action(TTR("Create Static Trimesh Body"));
-			else
-				ur->create_action(TTR("Create Static Convex Body"));
+			ur->create_action(TTR("Create Static Trimesh Body"));
 
 			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
 
@@ -132,8 +129,7 @@ void MeshInstanceEditor::_menu_option(int p_option) {
 
 		} break;
 
-		case MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE:
-		case MENU_OPTION_CREATE_CONVEX_COLLISION_SHAPE: {
+		case MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE: {
 
 			if (node == get_tree()->get_edited_scene_root()) {
 				err_dialog->set_text(TTR("This doesn't work on scene root!"));
@@ -141,9 +137,7 @@ void MeshInstanceEditor::_menu_option(int p_option) {
 				return;
 			}
 
-			bool trimesh_shape = (p_option == MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE);
-
-			Ref<Shape> shape = trimesh_shape ? mesh->create_trimesh_shape() : mesh->create_convex_shape();
+			Ref<Shape> shape = mesh->create_trimesh_shape();
 			if (shape.is_null())
 				return;
 
@@ -154,10 +148,7 @@ void MeshInstanceEditor::_menu_option(int p_option) {
 
 			UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
 
-			if (trimesh_shape)
-				ur->create_action(TTR("Create Trimesh Shape"));
-			else
-				ur->create_action(TTR("Create Convex Shape"));
+			ur->create_action(TTR("Create Trimesh Static Shape"));
 
 			ur->add_do_method(node->get_parent(), "add_child", cshape);
 			ur->add_do_method(node->get_parent(), "move_child", cshape, node->get_index() + 1);
@@ -165,6 +156,40 @@ void MeshInstanceEditor::_menu_option(int p_option) {
 			ur->add_do_reference(cshape);
 			ur->add_undo_method(node->get_parent(), "remove_child", cshape);
 			ur->commit_action();
+		} break;
+		case MENU_OPTION_CREATE_CONVEX_COLLISION_SHAPE: {
+
+			if (node == get_tree()->get_edited_scene_root()) {
+				err_dialog->set_text(TTR("This doesn't work on scene root!"));
+				err_dialog->popup_centered_minsize();
+				return;
+			}
+
+			Vector<Ref<Shape> > shapes = mesh->convex_decompose();
+
+			if (!shapes.size()) {
+				err_dialog->set_text(TTR("Failed creating shapes!"));
+				err_dialog->popup_centered_minsize();
+				return;
+			}
+			UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
+
+			ur->create_action(TTR("Create Convex Shape(s)"));
+
+			for (int i = 0; i < shapes.size(); i++) {
+
+				CollisionShape *cshape = memnew(CollisionShape);
+				cshape->set_shape(shapes[i]);
+
+				Node *owner = node->get_owner();
+
+				ur->add_do_method(node->get_parent(), "add_child", cshape);
+				ur->add_do_method(node->get_parent(), "move_child", cshape, node->get_index() + 1);
+				ur->add_do_method(cshape, "set_owner", owner);
+				ur->add_do_reference(cshape);
+				ur->add_undo_method(node->get_parent(), "remove_child", cshape);
+			}
+			ur->commit_action();
 
 		} break;
 
@@ -387,16 +412,16 @@ void MeshInstanceEditor::_bind_methods() {
 MeshInstanceEditor::MeshInstanceEditor() {
 
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(options);
 
 	options->set_text(TTR("Mesh"));
 	options->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("MeshInstance", "EditorIcons"));
 
 	options->get_popup()->add_item(TTR("Create Trimesh Static Body"), MENU_OPTION_CREATE_STATIC_TRIMESH_BODY);
-	options->get_popup()->add_item(TTR("Create Convex Static Body"), MENU_OPTION_CREATE_STATIC_CONVEX_BODY);
 	options->get_popup()->add_separator();
 	options->get_popup()->add_item(TTR("Create Trimesh Collision Sibling"), MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE);
-	options->get_popup()->add_item(TTR("Create Convex Collision Sibling"), MENU_OPTION_CREATE_CONVEX_COLLISION_SHAPE);
+	options->get_popup()->add_item(TTR("Create Convex Collision Sibling(s)"), MENU_OPTION_CREATE_CONVEX_COLLISION_SHAPE);
 	options->get_popup()->add_separator();
 	options->get_popup()->add_item(TTR("Create Navigation Mesh"), MENU_OPTION_CREATE_NAVMESH);
 	options->get_popup()->add_separator();
diff --git a/editor/plugins/mesh_library_editor_plugin.cpp b/editor/plugins/mesh_library_editor_plugin.cpp
index 89eb253afe..18586b2fe5 100644
--- a/editor/plugins/mesh_library_editor_plugin.cpp
+++ b/editor/plugins/mesh_library_editor_plugin.cpp
@@ -61,7 +61,8 @@ void MeshLibraryEditor::_menu_confirm() {
 			_import_scene_cbk(existing);
 
 		} break;
-		default: {};
+		default: {
+		};
 	}
 }
 
diff --git a/editor/plugins/multimesh_editor_plugin.cpp b/editor/plugins/multimesh_editor_plugin.cpp
index 8ff6080443..fc0a425bfc 100644
--- a/editor/plugins/multimesh_editor_plugin.cpp
+++ b/editor/plugins/multimesh_editor_plugin.cpp
@@ -293,6 +293,7 @@ void MultiMeshEditor::_bind_methods() {
 MultiMeshEditor::MultiMeshEditor() {
 
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(options);
 
 	options->set_text("MultiMesh");
diff --git a/editor/plugins/particles_2d_editor_plugin.cpp b/editor/plugins/particles_2d_editor_plugin.cpp
index d00687f7ea..50bdf4512b 100644
--- a/editor/plugins/particles_2d_editor_plugin.cpp
+++ b/editor/plugins/particles_2d_editor_plugin.cpp
@@ -375,6 +375,7 @@ Particles2DEditorPlugin::Particles2DEditorPlugin(EditorNode *p_node) {
 	menu->get_popup()->add_separator();
 	menu->get_popup()->add_item(TTR("Convert to CPUParticles"), MENU_OPTION_CONVERT_TO_CPU_PARTICLES);
 	menu->set_text(TTR("Particles"));
+	menu->set_switch_on_hover(true);
 	toolbar->add_child(menu);
 
 	file = memnew(EditorFileDialog);
@@ -408,7 +409,7 @@ Particles2DEditorPlugin::Particles2DEditorPlugin(EditorNode *p_node) {
 	generate_visibility_rect->connect("confirmed", this, "_generate_visibility_rect");
 
 	emission_mask = memnew(ConfirmationDialog);
-	emission_mask->set_title(TTR("Generate Visibility Rect"));
+	emission_mask->set_title(TTR("Load Emission Mask"));
 	VBoxContainer *emvb = memnew(VBoxContainer);
 	emission_mask->add_child(emvb);
 	emission_mask_mode = memnew(OptionButton);
diff --git a/editor/plugins/particles_editor_plugin.cpp b/editor/plugins/particles_editor_plugin.cpp
index 0032850535..09180edf2a 100644
--- a/editor/plugins/particles_editor_plugin.cpp
+++ b/editor/plugins/particles_editor_plugin.cpp
@@ -454,6 +454,7 @@ ParticlesEditor::ParticlesEditor() {
 	particles_editor_hb = memnew(HBoxContainer);
 	SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb);
 	options = memnew(MenuButton);
+	options->set_switch_on_hover(true);
 	particles_editor_hb->add_child(options);
 	particles_editor_hb->hide();
 
diff --git a/editor/plugins/physical_bone_plugin.cpp b/editor/plugins/physical_bone_plugin.cpp
index 9ea37aceb9..96681a105f 100644
--- a/editor/plugins/physical_bone_plugin.cpp
+++ b/editor/plugins/physical_bone_plugin.cpp
@@ -61,7 +61,7 @@ PhysicalBoneEditor::PhysicalBoneEditor(EditorNode *p_editor) :
 	button_transform_joint = memnew(ToolButton);
 	spatial_editor_hb->add_child(button_transform_joint);
 
-	button_transform_joint->set_text(TTR("Move joint"));
+	button_transform_joint->set_text(TTR("Move Joint"));
 	button_transform_joint->set_icon(SpatialEditor::get_singleton()->get_icon("PhysicalBone", "EditorIcons"));
 	button_transform_joint->set_toggle_mode(true);
 	button_transform_joint->connect("toggled", this, "_on_toggle_button_transform_joint");
diff --git a/editor/plugins/polygon_2d_editor_plugin.cpp b/editor/plugins/polygon_2d_editor_plugin.cpp
index 0dbbaf4177..712b1a0ae4 100644
--- a/editor/plugins/polygon_2d_editor_plugin.cpp
+++ b/editor/plugins/polygon_2d_editor_plugin.cpp
@@ -905,7 +905,8 @@ void Polygon2DEditor::_uv_input(const Ref<InputEvent> &p_input) {
 
 					bone_paint_pos = Vector2(mm->get_position().x, mm->get_position().y);
 				} break;
-				default: {}
+				default: {
+				}
 			}
 
 			if (bone_painting) {
@@ -1059,8 +1060,7 @@ void Polygon2DEditor::_uv_draw() {
 		polygon_fill_color.push_back(pf);
 	}
 	Color prev_color = Color(0.5, 0.5, 0.5);
-	Rect2 rect(Point2(), mtx.basis_xform(base_tex->get_size()));
-	rect.expand_to(mtx.basis_xform(uv_edit_draw->get_size()));
+	Rect2 rect;
 
 	int uv_draw_max = uvs.size();
 
@@ -1203,7 +1203,8 @@ void Polygon2DEditor::_uv_draw() {
 		uv_edit_draw->draw_circle(bone_paint_pos, bone_paint_radius->get_value() * EDSCALE, Color(1, 1, 1, 0.1));
 	}
 
-	rect = rect.grow(200);
+	rect.position -= uv_edit_draw->get_size();
+	rect.size += uv_edit_draw->get_size() * 2.0;
 	updating_uv_scroll = true;
 	uv_hscroll->set_min(rect.position.x);
 	uv_hscroll->set_max(rect.position.x + rect.size.x);
diff --git a/editor/plugins/script_editor_plugin.cpp b/editor/plugins/script_editor_plugin.cpp
index 89e3327a3a..92579e5cef 100644
--- a/editor/plugins/script_editor_plugin.cpp
+++ b/editor/plugins/script_editor_plugin.cpp
@@ -312,6 +312,38 @@ void ScriptEditor::_goto_script_line(REF p_script, int p_line) {
 	}
 }
 
+void ScriptEditor::_set_execution(REF p_script, int p_line) {
+	Ref<Script> script = Object::cast_to<Script>(*p_script);
+	if (script.is_valid() && (script->has_source_code() || script->get_path().is_resource_file())) {
+		for (int i = 0; i < tab_container->get_child_count(); i++) {
+
+			ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_child(i));
+			if (!se)
+				continue;
+
+			if ((script != NULL && se->get_edited_resource() == p_script) || se->get_edited_resource()->get_path() == script->get_path()) {
+				se->set_executing_line(p_line);
+			}
+		}
+	}
+}
+
+void ScriptEditor::_clear_execution(REF p_script) {
+	Ref<Script> script = Object::cast_to<Script>(*p_script);
+	if (script.is_valid() && (script->has_source_code() || script->get_path().is_resource_file())) {
+		for (int i = 0; i < tab_container->get_child_count(); i++) {
+
+			ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_child(i));
+			if (!se)
+				continue;
+
+			if ((script != NULL && se->get_edited_resource() == p_script) || se->get_edited_resource()->get_path() == script->get_path()) {
+				se->clear_executing_line();
+			}
+		}
+	}
+}
+
 ScriptEditorBase *ScriptEditor::_get_current_editor() const {
 
 	int selected = tab_container->get_current_tab();
@@ -571,6 +603,8 @@ void ScriptEditor::_close_tab(int p_idx, bool p_save, bool p_history_back) {
 			idx = history[history_pos].control->get_index();
 		}
 		tab_container->set_current_tab(idx);
+	} else {
+		_update_selected_editor_menu();
 	}
 
 	_update_history_arrows();
@@ -849,8 +883,7 @@ void ScriptEditor::_file_dialog_action(String p_file) {
 			}
 			file->close();
 			memdelete(file);
-
-			// fallthrough to open the file.
+			FALLTHROUGH;
 		}
 		case FILE_OPEN: {
 
@@ -971,6 +1004,9 @@ void ScriptEditor::_menu_option(int p_option) {
 
 			save_all_scripts();
 		} break;
+		case SEARCH_IN_FILES: {
+			_on_find_in_files_requested("");
+		} break;
 		case SEARCH_HELP: {
 
 			help_search_dialog->popup_dialog();
@@ -1736,7 +1772,7 @@ void ScriptEditor::_update_script_names() {
 
 			String name = eh->get_class();
 			Ref<Texture> icon = get_icon("Help", "EditorIcons");
-			String tooltip = name + TTR(" Class Reference");
+			String tooltip = vformat(TTR("%s Class Reference"), name);
 
 			_ScriptEditorItemData sd;
 			sd.icon = icon;
@@ -1802,6 +1838,16 @@ void ScriptEditor::_update_script_names() {
 	_update_script_colors();
 }
 
+void ScriptEditor::_update_script_connections() {
+	for (int i = 0; i < tab_container->get_child_count(); i++) {
+		ScriptTextEditor *ste = Object::cast_to<ScriptTextEditor>(tab_container->get_child(i));
+		if (!ste) {
+			continue;
+		}
+		ste->_update_connected_methods();
+	}
+}
+
 Ref<TextFile> ScriptEditor::_load_text_file(const String &p_path, Error *r_error) {
 	if (r_error) {
 		*r_error = ERR_FILE_CANT_OPEN;
@@ -2204,6 +2250,7 @@ void ScriptEditor::_tree_changed() {
 
 	waiting_update_names = true;
 	call_deferred("_update_script_names");
+	call_deferred("_update_script_connections");
 }
 
 void ScriptEditor::_script_split_dragged(float) {
@@ -2483,22 +2530,39 @@ void ScriptEditor::set_window_layout(Ref<ConfigFile> p_layout) {
 	for (int i = 0; i < scripts.size(); i++) {
 
 		String path = scripts[i];
+
+		Dictionary script_info = scripts[i];
+		if (!script_info.empty()) {
+			path = script_info["path"];
+		}
+
 		if (!FileAccess::exists(path))
 			continue;
 
 		if (extensions.find(path.get_extension())) {
 			Ref<Script> scr = ResourceLoader::load(path);
-			if (scr.is_valid()) {
-				edit(scr);
+			if (!scr.is_valid()) {
+				continue;
+			}
+			if (!edit(scr)) {
+				continue;
+			}
+		} else {
+			Error error;
+			Ref<TextFile> text_file = _load_text_file(path, &error);
+			if (error != OK || !text_file.is_valid()) {
+				continue;
+			}
+			if (!edit(text_file)) {
 				continue;
 			}
 		}
 
-		Error error;
-		Ref<TextFile> text_file = _load_text_file(path, &error);
-		if (error == OK && text_file.is_valid()) {
-			edit(text_file);
-			continue;
+		if (!script_info.empty()) {
+			ScriptEditorBase *se = Object::cast_to<ScriptEditorBase>(tab_container->get_child(tab_container->get_tab_count() - 1));
+			if (se) {
+				se->set_edit_state(script_info["state"]);
+			}
 		}
 	}
 
@@ -2538,7 +2602,11 @@ void ScriptEditor::get_window_layout(Ref<ConfigFile> p_layout) {
 			if (!path.is_resource_file())
 				continue;
 
-			scripts.push_back(path);
+			Dictionary script_info;
+			script_info["path"] = path;
+			script_info["state"] = se->get_edit_state();
+
+			scripts.push_back(script_info);
 		}
 
 		EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_child(i));
@@ -2631,10 +2699,22 @@ void ScriptEditor::_update_selected_editor_menu() {
 	}
 
 	EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_current_tab_control());
+	script_search_menu->get_popup()->clear();
 	if (eh) {
+
+		script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find", TTR("Find..."), KEY_MASK_CMD | KEY_F), HELP_SEARCH_FIND);
+		script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_next", TTR("Find Next"), KEY_F3), HELP_SEARCH_FIND_NEXT);
+		script_search_menu->get_popup()->add_separator();
+		script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_in_files", TTR("Find in Files"), KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_F), SEARCH_IN_FILES);
 		script_search_menu->show();
 	} else {
-		script_search_menu->hide();
+
+		if (tab_container->get_child_count() == 0) {
+			script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_in_files", TTR("Find in Files"), KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_F), SEARCH_IN_FILES);
+			script_search_menu->show();
+		} else {
+			script_search_menu->hide();
+		}
 	}
 }
 
@@ -2847,6 +2927,8 @@ void ScriptEditor::_bind_methods() {
 	ClassDB::bind_method("_res_saved_callback", &ScriptEditor::_res_saved_callback);
 	ClassDB::bind_method("_goto_script_line", &ScriptEditor::_goto_script_line);
 	ClassDB::bind_method("_goto_script_line2", &ScriptEditor::_goto_script_line2);
+	ClassDB::bind_method("_set_execution", &ScriptEditor::_set_execution);
+	ClassDB::bind_method("_clear_execution", &ScriptEditor::_clear_execution);
 	ClassDB::bind_method("_help_search", &ScriptEditor::_help_search);
 	ClassDB::bind_method("_save_history", &ScriptEditor::_save_history);
 	ClassDB::bind_method("_copy_script_path", &ScriptEditor::_copy_script_path);
@@ -2857,6 +2939,7 @@ void ScriptEditor::_bind_methods() {
 	ClassDB::bind_method("_autosave_scripts", &ScriptEditor::_autosave_scripts);
 	ClassDB::bind_method("_editor_settings_changed", &ScriptEditor::_editor_settings_changed);
 	ClassDB::bind_method("_update_script_names", &ScriptEditor::_update_script_names);
+	ClassDB::bind_method("_update_script_connections", &ScriptEditor::_update_script_connections);
 	ClassDB::bind_method("_tree_changed", &ScriptEditor::_tree_changed);
 	ClassDB::bind_method("_members_overview_selected", &ScriptEditor::_members_overview_selected);
 	ClassDB::bind_method("_help_overview_selected", &ScriptEditor::_help_overview_selected);
@@ -2884,6 +2967,7 @@ void ScriptEditor::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("can_drop_data_fw", "point", "data", "from"), &ScriptEditor::can_drop_data_fw);
 	ClassDB::bind_method(D_METHOD("drop_data_fw", "point", "data", "from"), &ScriptEditor::drop_data_fw);
 
+	ClassDB::bind_method(D_METHOD("goto_line", "line_number"), &ScriptEditor::_goto_script_line2);
 	ClassDB::bind_method(D_METHOD("get_current_script"), &ScriptEditor::_get_current_script);
 	ClassDB::bind_method(D_METHOD("get_open_scripts"), &ScriptEditor::_get_open_scripts);
 	ClassDB::bind_method(D_METHOD("open_script_create_dialog", "base_name", "base_path"), &ScriptEditor::open_script_create_dialog);
@@ -3042,10 +3126,7 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 	script_search_menu->set_text(TTR("Search"));
 	script_search_menu->set_switch_on_hover(true);
 	script_search_menu->get_popup()->set_hide_on_window_lose_focus(true);
-	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find", TTR("Find..."), KEY_MASK_CMD | KEY_F), HELP_SEARCH_FIND);
-	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_next", TTR("Find Next"), KEY_F3), HELP_SEARCH_FIND_NEXT);
 	script_search_menu->get_popup()->connect("id_pressed", this, "_menu_option");
-	script_search_menu->hide();
 
 	debug_menu = memnew(MenuButton);
 	menu_hb->add_child(debug_menu);
@@ -3084,13 +3165,13 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 	site_search->set_text(TTR("Online Docs"));
 	site_search->connect("pressed", this, "_menu_option", varray(SEARCH_WEBSITE));
 	menu_hb->add_child(site_search);
-	site_search->set_tooltip(TTR("Open Godot online documentation"));
+	site_search->set_tooltip(TTR("Open Godot online documentation."));
 
 	request_docs = memnew(ToolButton);
 	request_docs->set_text(TTR("Request Docs"));
 	request_docs->connect("pressed", this, "_menu_option", varray(REQUEST_DOCS));
 	menu_hb->add_child(request_docs);
-	request_docs->set_tooltip(TTR("Help improve the Godot documentation by giving feedback"));
+	request_docs->set_tooltip(TTR("Help improve the Godot documentation by giving feedback."));
 
 	help_search = memnew(ToolButton);
 	help_search->set_text(TTR("Search Help"));
@@ -3136,6 +3217,8 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 
 	debugger = memnew(ScriptEditorDebugger(editor));
 	debugger->connect("goto_script_line", this, "_goto_script_line");
+	debugger->connect("set_execution", this, "_set_execution");
+	debugger->connect("clear_execution", this, "_clear_execution");
 	debugger->connect("show_debugger", this, "_show_debugger");
 
 	disk_changed = memnew(ConfirmationDialog);
diff --git a/editor/plugins/script_editor_plugin.h b/editor/plugins/script_editor_plugin.h
index 954b014935..683fa881f8 100644
--- a/editor/plugins/script_editor_plugin.h
+++ b/editor/plugins/script_editor_plugin.h
@@ -96,6 +96,8 @@ public:
 	virtual Variant get_edit_state() = 0;
 	virtual void set_edit_state(const Variant &p_state) = 0;
 	virtual void goto_line(int p_line, bool p_with_error = false) = 0;
+	virtual void set_executing_line(int p_line) = 0;
+	virtual void clear_executing_line() = 0;
 	virtual void trim_trailing_whitespace() = 0;
 	virtual void convert_indent_to_spaces() = 0;
 	virtual void convert_indent_to_tabs() = 0;
@@ -155,6 +157,7 @@ class ScriptEditor : public PanelContainer {
 		DEBUG_SHOW,
 		DEBUG_SHOW_KEEP_OPEN,
 		DEBUG_WITH_EXTERNAL_EDITOR,
+		SEARCH_IN_FILES,
 		SEARCH_HELP,
 		SEARCH_WEBSITE,
 		REQUEST_DOCS,
@@ -318,6 +321,8 @@ class ScriptEditor : public PanelContainer {
 
 	void _goto_script_line2(int p_line);
 	void _goto_script_line(REF p_script, int p_line);
+	void _set_execution(REF p_script, int p_line);
+	void _clear_execution(REF p_script);
 	void _breaked(bool p_breaked, bool p_can_debug);
 	void _show_debugger(bool p_show);
 	void _update_window_menu();
@@ -333,6 +338,7 @@ class ScriptEditor : public PanelContainer {
 	void _update_members_overview();
 	void _toggle_members_overview_alpha_sort(bool p_alphabetic_sort);
 	void _update_script_names();
+	void _update_script_connections();
 	bool _sort_list_on_update;
 
 	void _members_overview_selected(int p_idx);
diff --git a/editor/plugins/script_text_editor.cpp b/editor/plugins/script_text_editor.cpp
index 8c3f8fd3e8..d40e67cc8c 100644
--- a/editor/plugins/script_text_editor.cpp
+++ b/editor/plugins/script_text_editor.cpp
@@ -35,6 +35,76 @@
 #include "editor/editor_settings.h"
 #include "editor/script_editor_debugger.h"
 
+void ConnectionInfoDialog::ok_pressed() {
+}
+
+void ConnectionInfoDialog::popup_connections(String p_method, Vector<Node *> p_nodes) {
+	method->set_text(p_method);
+
+	tree->clear();
+	TreeItem *root = tree->create_item();
+
+	for (int i = 0; i < p_nodes.size(); i++) {
+		List<Connection> all_connections;
+		p_nodes[i]->get_signals_connected_to_this(&all_connections);
+
+		for (List<Connection>::Element *E = all_connections.front(); E; E = E->next()) {
+			Connection connection = E->get();
+
+			if (connection.method != p_method) {
+				continue;
+			}
+
+			TreeItem *node_item = tree->create_item(root);
+
+			node_item->set_text(0, Object::cast_to<Node>(connection.source)->get_name());
+			node_item->set_icon(0, EditorNode::get_singleton()->get_object_icon(connection.source, "Node"));
+			node_item->set_selectable(0, false);
+			node_item->set_editable(0, false);
+
+			node_item->set_text(1, connection.signal);
+			node_item->set_icon(1, get_parent_control()->get_icon("Slot", "EditorIcons"));
+			node_item->set_selectable(1, false);
+			node_item->set_editable(1, false);
+
+			node_item->set_text(2, Object::cast_to<Node>(connection.target)->get_name());
+			node_item->set_icon(2, EditorNode::get_singleton()->get_object_icon(connection.target, "Node"));
+			node_item->set_selectable(2, false);
+			node_item->set_editable(2, false);
+		}
+	}
+
+	popup_centered(Size2(400, 300) * EDSCALE);
+}
+
+ConnectionInfoDialog::ConnectionInfoDialog() {
+	set_title(TTR("Connections to method:"));
+
+	VBoxContainer *vbc = memnew(VBoxContainer);
+	vbc->set_anchor_and_margin(MARGIN_LEFT, ANCHOR_BEGIN, 8 * EDSCALE);
+	vbc->set_anchor_and_margin(MARGIN_TOP, ANCHOR_BEGIN, 8 * EDSCALE);
+	vbc->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, -8 * EDSCALE);
+	vbc->set_anchor_and_margin(MARGIN_BOTTOM, ANCHOR_END, -8 * EDSCALE);
+	add_child(vbc);
+
+	method = memnew(Label);
+	method->set_align(Label::ALIGN_CENTER);
+	vbc->add_child(method);
+
+	tree = memnew(Tree);
+	tree->set_columns(3);
+	tree->set_hide_root(true);
+	tree->set_column_titles_visible(true);
+	tree->set_column_title(0, TTR("Source"));
+	tree->set_column_title(1, TTR("Signal"));
+	tree->set_column_title(2, TTR("Target"));
+	vbc->add_child(tree);
+	tree->set_v_size_flags(SIZE_EXPAND_FILL);
+	tree->set_allow_rmb_select(true);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
 Vector<String> ScriptTextEditor::get_functions() {
 
 	String errortxt;
@@ -81,6 +151,8 @@ void ScriptTextEditor::set_edited_resource(const RES &p_res) {
 
 	emit_signal("name_changed");
 	code_editor->update_line_and_column();
+
+	_validate_script();
 }
 
 void ScriptTextEditor::_update_member_keywords() {
@@ -142,6 +214,7 @@ void ScriptTextEditor::_load_theme_settings() {
 	Color member_variable_color = EDITOR_GET("text_editor/highlighting/member_variable_color");
 	Color mark_color = EDITOR_GET("text_editor/highlighting/mark_color");
 	Color breakpoint_color = EDITOR_GET("text_editor/highlighting/breakpoint_color");
+	Color executing_line_color = EDITOR_GET("text_editor/highlighting/executing_line_color");
 	Color code_folding_color = EDITOR_GET("text_editor/highlighting/code_folding_color");
 	Color search_result_color = EDITOR_GET("text_editor/highlighting/search_result_color");
 	Color search_result_border_color = EDITOR_GET("text_editor/highlighting/search_result_border_color");
@@ -173,6 +246,7 @@ void ScriptTextEditor::_load_theme_settings() {
 	text_edit->add_color_override("function_color", function_color);
 	text_edit->add_color_override("member_variable_color", member_variable_color);
 	text_edit->add_color_override("breakpoint_color", breakpoint_color);
+	text_edit->add_color_override("executing_line_color", executing_line_color);
 	text_edit->add_color_override("mark_color", mark_color);
 	text_edit->add_color_override("code_folding_color", code_folding_color);
 	text_edit->add_color_override("search_result_color", search_result_color);
@@ -286,7 +360,7 @@ void ScriptTextEditor::_warning_clicked(Variant p_line) {
 		code_editor->get_text_edit()->cursor_set_line(p_line.operator int64_t());
 	} else if (p_line.get_type() == Variant::DICTIONARY) {
 		Dictionary meta = p_line.operator Dictionary();
-		code_editor->get_text_edit()->insert_at("#warning-ignore:" + meta["code"].operator String(), meta["line"].operator int64_t() - 1);
+		code_editor->get_text_edit()->insert_at("# warning-ignore:" + meta["code"].operator String(), meta["line"].operator int64_t() - 1);
 		_validate_script();
 	}
 }
@@ -318,7 +392,6 @@ void ScriptTextEditor::_notification(int p_what) {
 	switch (p_what) {
 		case NOTIFICATION_READY:
 			_load_theme_settings();
-			_change_syntax_highlighter(EditorSettings::get_singleton()->get_project_metadata("script_text_editor", "syntax_highlighter", 0));
 			break;
 	}
 }
@@ -363,6 +436,14 @@ Variant ScriptTextEditor::get_edit_state() {
 void ScriptTextEditor::set_edit_state(const Variant &p_state) {
 
 	code_editor->set_edit_state(p_state);
+
+	Dictionary state = p_state;
+	if (state.has("syntax_highlighter")) {
+		int idx = highlighter_menu->get_item_idx_from_text(state["syntax_highlighter"]);
+		if (idx >= 0) {
+			_change_syntax_highlighter(idx);
+		}
+	}
 }
 
 void ScriptTextEditor::_convert_case(CodeTextEditor::CaseStyle p_case) {
@@ -400,6 +481,14 @@ void ScriptTextEditor::goto_line_selection(int p_line, int p_begin, int p_end) {
 	code_editor->goto_line_selection(p_line, p_begin, p_end);
 }
 
+void ScriptTextEditor::set_executing_line(int p_line) {
+	code_editor->set_executing_line(p_line);
+}
+
+void ScriptTextEditor::clear_executing_line() {
+	code_editor->clear_executing_line();
+}
+
 void ScriptTextEditor::ensure_focus() {
 
 	code_editor->get_text_edit()->grab_focus();
@@ -461,9 +550,32 @@ void ScriptTextEditor::_validate_script() {
 			functions.push_back(E->get());
 		}
 	}
+	_update_connected_methods();
 
-	code_editor->set_warning_nb(warnings.size());
+	code_editor->set_warning_nb(missing_connections.size() + warnings.size());
 	warnings_panel->clear();
+
+	// add missing connections
+	Node *base = get_tree()->get_edited_scene_root();
+	if (base && missing_connections.size() > 0) {
+		warnings_panel->push_table(1);
+		for (List<Connection>::Element *E = missing_connections.front(); E; E = E->next()) {
+			Connection connection = E->get();
+
+			String base_path = base->get_name();
+			String source_path = base == connection.source ? base_path : base_path + "/" + String(base->get_path_to(Object::cast_to<Node>(connection.source)));
+			String target_path = base == connection.target ? base_path : base_path + "/" + String(base->get_path_to(Object::cast_to<Node>(connection.target)));
+
+			warnings_panel->push_cell();
+			warnings_panel->push_color(warnings_panel->get_color("warning_color", "Editor"));
+			warnings_panel->add_text(vformat(TTR("Missing connected method '%s' for signal '%s' from node '%s' to node '%s'"), connection.method, connection.signal, source_path, target_path));
+			warnings_panel->pop(); // Color
+			warnings_panel->pop(); // Cell
+		}
+		warnings_panel->pop(); // Table
+	}
+
+	// add script warnings
 	warnings_panel->push_table(3);
 	for (List<ScriptLanguage::Warning>::Element *E = warnings.front(); E; E = E->next()) {
 		ScriptLanguage::Warning w = E->get();
@@ -517,6 +629,27 @@ void ScriptTextEditor::_validate_script() {
 	emit_signal("edited_script_changed");
 }
 
+static Vector<Node *> _find_all_node_for_script(Node *p_base, Node *p_current, const Ref<Script> &p_script) {
+
+	Vector<Node *> nodes;
+
+	if (p_current->get_owner() != p_base && p_base != p_current) {
+		return nodes;
+	}
+
+	Ref<Script> c = p_current->get_script();
+	if (c == p_script) {
+		nodes.push_back(p_current);
+	}
+
+	for (int i = 0; i < p_current->get_child_count(); i++) {
+		Vector<Node *> found = _find_all_node_for_script(p_base, p_current->get_child(i), p_script);
+		nodes.append_array(found);
+	}
+
+	return nodes;
+}
+
 static Node *_find_node_for_script(Node *p_base, Node *p_current, const Ref<Script> &p_script) {
 
 	if (p_current->get_owner() != p_base && p_base != p_current)
@@ -712,6 +845,47 @@ void ScriptTextEditor::_lookup_symbol(const String &p_symbol, int p_row, int p_c
 	}
 }
 
+void ScriptTextEditor::_update_connected_methods() {
+	TextEdit *text_edit = code_editor->get_text_edit();
+	text_edit->clear_info_icons();
+	missing_connections.clear();
+
+	Node *base = get_tree()->get_edited_scene_root();
+	if (!base) {
+		return;
+	}
+
+	Vector<Node *> nodes = _find_all_node_for_script(base, base, script);
+	for (int i = 0; i < nodes.size(); i++) {
+		List<Connection> connections;
+		nodes[i]->get_signals_connected_to_this(&connections);
+
+		for (List<Connection>::Element *E = connections.front(); E; E = E->next()) {
+			Connection connection = E->get();
+			if (!(connection.flags & CONNECT_PERSIST)) {
+				continue;
+			}
+
+			int line = script->get_language()->find_function(connection.method, text_edit->get_text());
+			if (line < 0) {
+				missing_connections.push_back(connection);
+				continue;
+			}
+			text_edit->set_line_info_icon(line - 1, get_parent_control()->get_icon("Slot", "EditorIcons"), connection.method);
+		}
+	}
+}
+
+void ScriptTextEditor::_lookup_connections(int p_row, String p_method) {
+	Node *base = get_tree()->get_edited_scene_root();
+	if (!base) {
+		return;
+	}
+
+	Vector<Node *> nodes = _find_all_node_for_script(base, base, script);
+	connection_info_dialog->popup_connections(p_method, nodes);
+}
+
 void ScriptTextEditor::_edit_option(int p_op) {
 
 	TextEdit *tx = code_editor->get_text_edit();
@@ -910,7 +1084,7 @@ void ScriptTextEditor::_edit_option(int p_op) {
 				tx->set_line_as_breakpoint(line, dobreak);
 				ScriptEditor::get_singleton()->get_debugger()->set_breakpoint(script->get_path(), line + 1, dobreak);
 			}
-		}
+		} break;
 		case DEBUG_GOTO_NEXT_BREAKPOINT: {
 
 			List<int> bpoints;
@@ -1024,7 +1198,6 @@ void ScriptTextEditor::_change_syntax_highlighter(int p_idx) {
 	}
 	// highlighter_menu->set_item_checked(p_idx, true);
 	set_syntax_highlighter(highlighters[highlighter_menu->get_item_text(p_idx)]);
-	EditorSettings::get_singleton()->set_project_metadata("script_text_editor", "syntax_highlighter", p_idx);
 }
 
 void ScriptTextEditor::_bind_methods() {
@@ -1032,6 +1205,8 @@ void ScriptTextEditor::_bind_methods() {
 	ClassDB::bind_method("_validate_script", &ScriptTextEditor::_validate_script);
 	ClassDB::bind_method("_load_theme_settings", &ScriptTextEditor::_load_theme_settings);
 	ClassDB::bind_method("_breakpoint_toggled", &ScriptTextEditor::_breakpoint_toggled);
+	ClassDB::bind_method("_lookup_connections", &ScriptTextEditor::_lookup_connections);
+	ClassDB::bind_method("_update_connected_methods", &ScriptTextEditor::_update_connected_methods);
 	ClassDB::bind_method("_change_syntax_highlighter", &ScriptTextEditor::_change_syntax_highlighter);
 	ClassDB::bind_method("_edit_option", &ScriptTextEditor::_edit_option);
 	ClassDB::bind_method("_goto_line", &ScriptTextEditor::_goto_line);
@@ -1364,6 +1539,7 @@ ScriptTextEditor::ScriptTextEditor() {
 	code_editor->set_code_complete_func(_code_complete_scripts, this);
 	code_editor->get_text_edit()->connect("breakpoint_toggled", this, "_breakpoint_toggled");
 	code_editor->get_text_edit()->connect("symbol_lookup", this, "_lookup_symbol");
+	code_editor->get_text_edit()->connect("info_clicked", this, "_lookup_connections");
 	code_editor->set_v_size_flags(SIZE_EXPAND_FILL);
 
 	warnings_panel = memnew(RichTextLabel);
@@ -1484,6 +1660,9 @@ ScriptTextEditor::ScriptTextEditor() {
 	goto_line_dialog = memnew(GotoLineDialog);
 	add_child(goto_line_dialog);
 
+	connection_info_dialog = memnew(ConnectionInfoDialog);
+	add_child(connection_info_dialog);
+
 	code_editor->get_text_edit()->set_drag_forwarding(this);
 }
 
diff --git a/editor/plugins/script_text_editor.h b/editor/plugins/script_text_editor.h
index b081a31c18..0dbc884594 100644
--- a/editor/plugins/script_text_editor.h
+++ b/editor/plugins/script_text_editor.h
@@ -32,8 +32,25 @@
 #define SCRIPT_TEXT_EDITOR_H
 
 #include "scene/gui/color_picker.h"
+#include "scene/gui/dialogs.h"
+#include "scene/gui/tree.h"
 #include "script_editor_plugin.h"
 
+class ConnectionInfoDialog : public AcceptDialog {
+
+	GDCLASS(ConnectionInfoDialog, AcceptDialog);
+
+	Label *method;
+	Tree *tree;
+
+	virtual void ok_pressed();
+
+public:
+	void popup_connections(String p_method, Vector<Node *> p_nodes);
+
+	ConnectionInfoDialog();
+};
+
 class ScriptTextEditor : public ScriptEditorBase {
 
 	GDCLASS(ScriptTextEditor, ScriptEditorBase);
@@ -45,6 +62,8 @@ class ScriptTextEditor : public ScriptEditorBase {
 
 	Vector<String> functions;
 
+	List<Connection> missing_connections;
+
 	Vector<String> member_keywords;
 
 	HBoxContainer *edit_hb;
@@ -56,6 +75,7 @@ class ScriptTextEditor : public ScriptEditorBase {
 
 	GotoLineDialog *goto_line_dialog;
 	ScriptEditorQuickOpen *quick_open;
+	ConnectionInfoDialog *connection_info_dialog;
 
 	PopupPanel *color_panel;
 	ColorPicker *color_picker;
@@ -144,6 +164,8 @@ protected:
 	void _goto_line(int p_line) { goto_line(p_line); }
 	void _lookup_symbol(const String &p_symbol, int p_row, int p_column);
 
+	void _lookup_connections(int p_row, String p_method);
+
 	void _convert_case(CodeTextEditor::CaseStyle p_case);
 
 	Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
@@ -151,6 +173,8 @@ protected:
 	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
 
 public:
+	void _update_connected_methods();
+
 	virtual void add_syntax_highlighter(SyntaxHighlighter *p_highlighter);
 	virtual void set_syntax_highlighter(SyntaxHighlighter *p_highlighter);
 
@@ -172,6 +196,8 @@ public:
 
 	virtual void goto_line(int p_line, bool p_with_error = false);
 	void goto_line_selection(int p_line, int p_begin, int p_end);
+	virtual void set_executing_line(int p_line);
+	virtual void clear_executing_line();
 
 	virtual void reload(bool p_soft);
 	virtual void get_breakpoints(List<int> *p_breakpoints);
diff --git a/editor/plugins/shader_editor_plugin.cpp b/editor/plugins/shader_editor_plugin.cpp
index d39e521113..31660a9e19 100644
--- a/editor/plugins/shader_editor_plugin.cpp
+++ b/editor/plugins/shader_editor_plugin.cpp
@@ -85,6 +85,7 @@ void ShaderTextEditor::_load_theme_settings() {
 	Color member_variable_color = EDITOR_GET("text_editor/highlighting/member_variable_color");
 	Color mark_color = EDITOR_GET("text_editor/highlighting/mark_color");
 	Color breakpoint_color = EDITOR_GET("text_editor/highlighting/breakpoint_color");
+	Color executing_line_color = EDITOR_GET("text_editor/highlighting/executing_line_color");
 	Color code_folding_color = EDITOR_GET("text_editor/highlighting/code_folding_color");
 	Color search_result_color = EDITOR_GET("text_editor/highlighting/search_result_color");
 	Color search_result_border_color = EDITOR_GET("text_editor/highlighting/search_result_border_color");
@@ -113,6 +114,7 @@ void ShaderTextEditor::_load_theme_settings() {
 	get_text_edit()->add_color_override("member_variable_color", member_variable_color);
 	get_text_edit()->add_color_override("mark_color", mark_color);
 	get_text_edit()->add_color_override("breakpoint_color", breakpoint_color);
+	get_text_edit()->add_color_override("executing_line_color", executing_line_color);
 	get_text_edit()->add_color_override("code_folding_color", code_folding_color);
 	get_text_edit()->add_color_override("search_result_color", search_result_color);
 	get_text_edit()->add_color_override("search_result_border_color", search_result_border_color);
diff --git a/editor/plugins/skeleton_2d_editor_plugin.cpp b/editor/plugins/skeleton_2d_editor_plugin.cpp
index ef3e17279c..0ccb60e39e 100644
--- a/editor/plugins/skeleton_2d_editor_plugin.cpp
+++ b/editor/plugins/skeleton_2d_editor_plugin.cpp
@@ -108,6 +108,7 @@ Skeleton2DEditor::Skeleton2DEditor() {
 	options->get_popup()->add_item(TTR("Make Rest Pose (From Bones)"), MENU_OPTION_MAKE_REST);
 	options->get_popup()->add_separator();
 	options->get_popup()->add_item(TTR("Set Bones to Rest Pose"), MENU_OPTION_SET_REST);
+	options->set_switch_on_hover(true);
 
 	options->get_popup()->connect("id_pressed", this, "_menu_option");
 
diff --git a/editor/plugins/spatial_editor_plugin.cpp b/editor/plugins/spatial_editor_plugin.cpp
index 765d198f79..5a733f6509 100644
--- a/editor/plugins/spatial_editor_plugin.cpp
+++ b/editor/plugins/spatial_editor_plugin.cpp
@@ -269,11 +269,21 @@ void SpatialEditorViewport::_select_clicked(bool p_append, bool p_single) {
 	if (!clicked)
 		return;
 
-	Spatial *sp = Object::cast_to<Spatial>(ObjectDB::get_instance(clicked));
-	if (!sp)
+	Node *node = Object::cast_to<Node>(ObjectDB::get_instance(clicked));
+	Spatial *selected = Object::cast_to<Spatial>(node);
+	if (!selected)
 		return;
 
-	_select(sp, clicked_wants_append, true);
+	// Replace the node by the group if grouped
+	while (node && node != editor->get_edited_scene()->get_parent()) {
+		Spatial *selected_tmp = Object::cast_to<Spatial>(node);
+		if (selected_tmp && node->has_meta("_edit_group_")) {
+			selected = selected_tmp;
+		}
+		node = node->get_parent();
+	}
+
+	_select(selected, clicked_wants_append, true);
 }
 
 void SpatialEditorViewport::_select(Node *p_node, bool p_append, bool p_single) {
@@ -511,6 +521,19 @@ void SpatialEditorViewport::_select_region() {
 			item = item->get_owner();
 		}
 
+		// Replace the node by the group if grouped
+		if (item->is_class("Spatial")) {
+			Spatial *sel = Object::cast_to<Spatial>(item);
+			while (item && item != editor->get_edited_scene()->get_parent()) {
+				Spatial *selected_tmp = Object::cast_to<Spatial>(item);
+				if (selected_tmp && item->has_meta("_edit_group_")) {
+					sel = selected_tmp;
+				}
+				item = item->get_parent();
+			}
+			item = sel;
+		}
+
 		if (selected.find(item) != -1) continue;
 
 		Ref<EditorSpatialGizmo> seg = sp->get_gizmo();
@@ -1637,7 +1660,8 @@ void SpatialEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
 						surface->update();
 
 					} break;
-					default: {}
+					default: {
+					}
 				}
 			}
 
@@ -1704,7 +1728,8 @@ void SpatialEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
 
 			} break;
 
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -1760,7 +1785,8 @@ void SpatialEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
 
 			} break;
 
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -1824,7 +1850,7 @@ void SpatialEditorViewport::_sinput(const Ref<InputEvent> &p_event) {
 				if (!sp)
 					continue;
 
-				emit_signal("transform_key_request", sp, "", sp->get_transform());
+				spatial_editor->emit_signal("transform_key_request", sp, "", sp->get_transform());
 			}
 
 			set_message(TTR("Animation Key Inserted."));
@@ -2382,7 +2408,10 @@ void SpatialEditorViewport::_draw() {
 
 	if (cursor.region_select) {
 
-		VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(cursor.region_begin, cursor.region_end - cursor.region_begin), Color(0.7, 0.7, 1.0, 0.3));
+		VisualServer::get_singleton()->canvas_item_add_rect(
+				ci,
+				Rect2(cursor.region_begin, cursor.region_end - cursor.region_begin),
+				get_color("accent_color", "Editor") * Color(1, 1, 1, 0.375));
 	}
 
 	if (message_time > 0) {
@@ -2396,7 +2425,13 @@ void SpatialEditorViewport::_draw() {
 	if (_edit.mode == TRANSFORM_ROTATE) {
 
 		Point2 center = _point_to_screen(_edit.center);
-		VisualServer::get_singleton()->canvas_item_add_line(ci, _edit.mouse_pos, center, Color(0.4, 0.7, 1.0, 0.8));
+		VisualServer::get_singleton()->canvas_item_add_line(
+				ci,
+				_edit.mouse_pos,
+				center,
+				get_color("accent_color", "Editor") * Color(1, 1, 1, 0.6),
+				Math::round(2 * EDSCALE),
+				true);
 	}
 	if (previewing) {
 
@@ -2438,7 +2473,7 @@ void SpatialEditorViewport::_draw() {
 				real_t max_speed = camera->get_zfar();
 				real_t scale_length = (max_speed - min_speed);
 
-				if (Math::abs(scale_length) > CMP_EPSILON) {
+				if (!Math::is_zero_approx(scale_length)) {
 					real_t logscale_t = 1.0 - Math::log(1 + freelook_speed - min_speed) / Math::log(1 + scale_length);
 
 					// There is no real maximum speed so that factor can become negative,
@@ -2456,7 +2491,7 @@ void SpatialEditorViewport::_draw() {
 				real_t max_distance = camera->get_zfar();
 				real_t scale_length = (max_distance - min_distance);
 
-				if (Math::abs(scale_length) > CMP_EPSILON) {
+				if (!Math::is_zero_approx(scale_length)) {
 					real_t logscale_t = 1.0 - Math::log(1 + cursor.distance - min_distance) / Math::log(1 + scale_length);
 
 					// There is no real maximum distance so that factor can become negative,
@@ -3001,7 +3036,7 @@ void SpatialEditorViewport::set_state(const Dictionary &p_state) {
 			previewing = Object::cast_to<Camera>(pv);
 			previewing->connect("tree_exiting", this, "_preview_exited_scene");
 			VS::get_singleton()->viewport_attach_camera(viewport->get_viewport_rid(), previewing->get_camera()); //replace
-			view_menu->hide();
+			view_menu->set_disabled(true);
 			surface->update();
 			preview_camera->set_pressed(true);
 			preview_camera->show();
@@ -4480,6 +4515,7 @@ void SpatialEditor::_menu_item_pressed(int p_option) {
 			snap_selected_nodes_to_floor();
 		} break;
 		case MENU_LOCK_SELECTED: {
+			undo_redo->create_action(TTR("Lock Selected"));
 
 			List<Node *> &selection = editor_selection->get_selected_node_list();
 
@@ -4492,14 +4528,66 @@ void SpatialEditor::_menu_item_pressed(int p_option) {
 				if (spatial->get_viewport() != EditorNode::get_singleton()->get_scene_root())
 					continue;
 
-				spatial->set_meta("_edit_lock_", true);
-				emit_signal("item_lock_status_changed");
+				undo_redo->add_do_method(spatial, "set_meta", "_edit_lock_", true);
+				undo_redo->add_undo_method(spatial, "remove_meta", "_edit_lock_");
+				undo_redo->add_do_method(this, "emit_signal", "item_lock_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_lock_status_changed");
 			}
 
-			_refresh_menu_icons();
+			undo_redo->add_do_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->add_undo_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->commit_action();
 		} break;
 		case MENU_UNLOCK_SELECTED: {
+			undo_redo->create_action(TTR("Unlock Selected"));
+
+			List<Node *> &selection = editor_selection->get_selected_node_list();
+
+			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
+
+				Spatial *spatial = Object::cast_to<Spatial>(E->get());
+				if (!spatial || !spatial->is_visible_in_tree())
+					continue;
+
+				if (spatial->get_viewport() != EditorNode::get_singleton()->get_scene_root())
+					continue;
+
+				undo_redo->add_do_method(spatial, "remove_meta", "_edit_lock_");
+				undo_redo->add_undo_method(spatial, "set_meta", "_edit_lock_", true);
+				undo_redo->add_do_method(this, "emit_signal", "item_lock_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_lock_status_changed");
+			}
+
+			undo_redo->add_do_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->add_undo_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->commit_action();
+		} break;
+		case MENU_GROUP_SELECTED: {
+			undo_redo->create_action(TTR("Group Selected"));
+
+			List<Node *> &selection = editor_selection->get_selected_node_list();
+
+			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
+
+				Spatial *spatial = Object::cast_to<Spatial>(E->get());
+				if (!spatial || !spatial->is_visible_in_tree())
+					continue;
 
+				if (spatial->get_viewport() != EditorNode::get_singleton()->get_scene_root())
+					continue;
+
+				undo_redo->add_do_method(spatial, "set_meta", "_edit_group_", true);
+				undo_redo->add_undo_method(spatial, "remove_meta", "_edit_group_");
+				undo_redo->add_do_method(this, "emit_signal", "item_group_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_group_status_changed");
+			}
+
+			undo_redo->add_do_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->add_undo_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->commit_action();
+		} break;
+		case MENU_UNGROUP_SELECTED: {
+			undo_redo->create_action(TTR("Ungroup Selected"));
 			List<Node *> &selection = editor_selection->get_selected_node_list();
 
 			for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
@@ -4511,11 +4599,15 @@ void SpatialEditor::_menu_item_pressed(int p_option) {
 				if (spatial->get_viewport() != EditorNode::get_singleton()->get_scene_root())
 					continue;
 
-				spatial->set_meta("_edit_lock_", Variant());
-				emit_signal("item_lock_status_changed");
+				undo_redo->add_do_method(spatial, "remove_meta", "_edit_group_");
+				undo_redo->add_undo_method(spatial, "set_meta", "_edit_group_", true);
+				undo_redo->add_do_method(this, "emit_signal", "item_group_status_changed");
+				undo_redo->add_undo_method(this, "emit_signal", "item_group_status_changed");
 			}
 
-			_refresh_menu_icons();
+			undo_redo->add_do_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->add_undo_method(this, "_refresh_menu_icons", Variant());
+			undo_redo->commit_action();
 		} break;
 	}
 }
@@ -4959,11 +5051,13 @@ bool SpatialEditor::is_any_freelook_active() const {
 void SpatialEditor::_refresh_menu_icons() {
 
 	bool all_locked = true;
+	bool all_grouped = true;
 
 	List<Node *> &selection = editor_selection->get_selected_node_list();
 
 	if (selection.empty()) {
 		all_locked = false;
+		all_grouped = false;
 	} else {
 		for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
 			if (Object::cast_to<Spatial>(E->get()) && !Object::cast_to<Spatial>(E->get())->has_meta("_edit_lock_")) {
@@ -4971,11 +5065,21 @@ void SpatialEditor::_refresh_menu_icons() {
 				break;
 			}
 		}
+		for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
+			if (Object::cast_to<Spatial>(E->get()) && !Object::cast_to<Spatial>(E->get())->has_meta("_edit_group_")) {
+				all_grouped = false;
+				break;
+			}
+		}
 	}
 
 	tool_button[TOOL_LOCK_SELECTED]->set_visible(!all_locked);
 	tool_button[TOOL_LOCK_SELECTED]->set_disabled(selection.empty());
 	tool_button[TOOL_UNLOCK_SELECTED]->set_visible(all_locked);
+
+	tool_button[TOOL_GROUP_SELECTED]->set_visible(!all_grouped);
+	tool_button[TOOL_GROUP_SELECTED]->set_disabled(selection.empty());
+	tool_button[TOOL_UNGROUP_SELECTED]->set_visible(all_grouped);
 }
 
 template <typename T>
@@ -5145,6 +5249,8 @@ void SpatialEditor::_notification(int p_what) {
 		tool_button[SpatialEditor::TOOL_MODE_LIST_SELECT]->set_icon(get_icon("ListSelect", "EditorIcons"));
 		tool_button[SpatialEditor::TOOL_LOCK_SELECTED]->set_icon(get_icon("Lock", "EditorIcons"));
 		tool_button[SpatialEditor::TOOL_UNLOCK_SELECTED]->set_icon(get_icon("Unlock", "EditorIcons"));
+		tool_button[SpatialEditor::TOOL_GROUP_SELECTED]->set_icon(get_icon("Group", "EditorIcons"));
+		tool_button[SpatialEditor::TOOL_UNGROUP_SELECTED]->set_icon(get_icon("Ungroup", "EditorIcons"));
 
 		tool_option_button[SpatialEditor::TOOL_OPT_LOCAL_COORDS]->set_icon(get_icon("Object", "EditorIcons"));
 		tool_option_button[SpatialEditor::TOOL_OPT_USE_SNAP]->set_icon(get_icon("Snap", "EditorIcons"));
@@ -5339,6 +5445,7 @@ void SpatialEditor::_bind_methods() {
 
 	ADD_SIGNAL(MethodInfo("transform_key_request"));
 	ADD_SIGNAL(MethodInfo("item_lock_status_changed"));
+	ADD_SIGNAL(MethodInfo("item_group_status_changed"));
 }
 
 void SpatialEditor::clear() {
@@ -5452,6 +5559,18 @@ SpatialEditor::SpatialEditor(EditorNode *p_editor) {
 	tool_button[TOOL_UNLOCK_SELECTED]->connect("pressed", this, "_menu_item_pressed", button_binds);
 	tool_button[TOOL_UNLOCK_SELECTED]->set_tooltip(TTR("Unlock the selected object (can be moved)."));
 
+	tool_button[TOOL_GROUP_SELECTED] = memnew(ToolButton);
+	hbc_menu->add_child(tool_button[TOOL_GROUP_SELECTED]);
+	button_binds.write[0] = MENU_GROUP_SELECTED;
+	tool_button[TOOL_GROUP_SELECTED]->connect("pressed", this, "_menu_item_pressed", button_binds);
+	tool_button[TOOL_GROUP_SELECTED]->set_tooltip(TTR("Makes sure the object's children are not selectable."));
+
+	tool_button[TOOL_UNGROUP_SELECTED] = memnew(ToolButton);
+	hbc_menu->add_child(tool_button[TOOL_UNGROUP_SELECTED]);
+	button_binds.write[0] = MENU_UNGROUP_SELECTED;
+	tool_button[TOOL_UNGROUP_SELECTED]->connect("pressed", this, "_menu_item_pressed", button_binds);
+	tool_button[TOOL_UNGROUP_SELECTED]->set_tooltip(TTR("Restores the object's children's ability to be selected."));
+
 	hbc_menu->add_child(memnew(VSeparator));
 
 	tool_option_button[TOOL_OPT_LOCAL_COORDS] = memnew(ToolButton);
@@ -5586,11 +5705,11 @@ SpatialEditor::SpatialEditor(EditorNode *p_editor) {
 	snap_dialog_vbc->add_margin_child(TTR("Translate Snap:"), snap_translate);
 
 	snap_rotate = memnew(LineEdit);
-	snap_rotate->set_text("5");
+	snap_rotate->set_text("15");
 	snap_dialog_vbc->add_margin_child(TTR("Rotate Snap (deg.):"), snap_rotate);
 
 	snap_scale = memnew(LineEdit);
-	snap_scale->set_text("5");
+	snap_scale->set_text("10");
 	snap_dialog_vbc->add_margin_child(TTR("Scale Snap (%):"), snap_scale);
 
 	/* SETTINGS DIALOG */
@@ -5748,6 +5867,39 @@ Vector3 SpatialEditor::snap_point(Vector3 p_target, Vector3 p_start) const {
 	return p_target;
 }
 
+float SpatialEditor::get_translate_snap() const {
+	float snap_value;
+	if (Input::get_singleton()->is_key_pressed(KEY_SHIFT)) {
+		snap_value = snap_translate->get_text().to_double() / 10.0;
+	} else {
+		snap_value = snap_translate->get_text().to_double();
+	}
+
+	return snap_value;
+}
+
+float SpatialEditor::get_rotate_snap() const {
+	float snap_value;
+	if (Input::get_singleton()->is_key_pressed(KEY_SHIFT)) {
+		snap_value = snap_rotate->get_text().to_double() / 3.0;
+	} else {
+		snap_value = snap_rotate->get_text().to_double();
+	}
+
+	return snap_value;
+}
+
+float SpatialEditor::get_scale_snap() const {
+	float snap_value;
+	if (Input::get_singleton()->is_key_pressed(KEY_SHIFT)) {
+		snap_value = snap_scale->get_text().to_double() / 2.0;
+	} else {
+		snap_value = snap_scale->get_text().to_double();
+	}
+
+	return snap_value;
+}
+
 void SpatialEditorPlugin::_bind_methods() {
 
 	ClassDB::bind_method("snap_cursor_to_plane", &SpatialEditorPlugin::snap_cursor_to_plane);
@@ -5802,7 +5954,7 @@ SpatialEditorPlugin::SpatialEditorPlugin(EditorNode *p_node) {
 	editor->get_viewport()->add_child(spatial_editor);
 
 	spatial_editor->hide();
-	spatial_editor->connect("transform_key_request", editor, "_transform_keyed");
+	spatial_editor->connect("transform_key_request", editor->get_inspector_dock(), "_transform_keyed");
 }
 
 SpatialEditorPlugin::~SpatialEditorPlugin() {
diff --git a/editor/plugins/spatial_editor_plugin.h b/editor/plugins/spatial_editor_plugin.h
index 4a9d34a7f7..f3a1e657cc 100644
--- a/editor/plugins/spatial_editor_plugin.h
+++ b/editor/plugins/spatial_editor_plugin.h
@@ -485,6 +485,8 @@ public:
 		TOOL_MODE_LIST_SELECT,
 		TOOL_LOCK_SELECTED,
 		TOOL_UNLOCK_SELECTED,
+		TOOL_GROUP_SELECTED,
+		TOOL_UNGROUP_SELECTED,
 		TOOL_MAX
 	};
 
@@ -570,6 +572,8 @@ private:
 		MENU_VIEW_CAMERA_SETTINGS,
 		MENU_LOCK_SELECTED,
 		MENU_UNLOCK_SELECTED,
+		MENU_GROUP_SELECTED,
+		MENU_UNGROUP_SELECTED,
 		MENU_SNAP_TO_FLOOR
 	};
 
@@ -673,9 +677,9 @@ public:
 	ToolMode get_tool_mode() const { return tool_mode; }
 	bool are_local_coords_enabled() const { return tool_option_button[SpatialEditor::TOOL_OPT_LOCAL_COORDS]->is_pressed(); }
 	bool is_snap_enabled() const { return snap_enabled ^ snap_key_enabled; }
-	float get_translate_snap() const { return snap_translate->get_text().to_double(); }
-	float get_rotate_snap() const { return snap_rotate->get_text().to_double(); }
-	float get_scale_snap() const { return snap_scale->get_text().to_double(); }
+	float get_translate_snap() const;
+	float get_rotate_snap() const;
+	float get_scale_snap() const;
 
 	Ref<ArrayMesh> get_move_gizmo(int idx) const { return move_gizmo[idx]; }
 	Ref<ArrayMesh> get_move_plane_gizmo(int idx) const { return move_plane_gizmo[idx]; }
diff --git a/editor/plugins/sprite_editor_plugin.cpp b/editor/plugins/sprite_editor_plugin.cpp
index 3854d27567..7642bfaf04 100644
--- a/editor/plugins/sprite_editor_plugin.cpp
+++ b/editor/plugins/sprite_editor_plugin.cpp
@@ -31,7 +31,10 @@
 #include "sprite_editor_plugin.h"
 
 #include "canvas_item_editor_plugin.h"
+#include "scene/2d/collision_polygon_2d.h"
+#include "scene/2d/light_occluder_2d.h"
 #include "scene/2d/mesh_instance_2d.h"
+#include "scene/2d/polygon_2d.h"
 #include "scene/gui/box_container.h"
 #include "thirdparty/misc/clipper.hpp"
 
@@ -116,8 +119,42 @@ void SpriteEditor::_menu_option(int p_option) {
 		return;
 	}
 
+	selected_menu_item = (Menu)p_option;
+
 	switch (p_option) {
-		case MENU_OPTION_CREATE_MESH_2D: {
+		case MENU_OPTION_CONVERT_TO_MESH_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create Mesh2D"));
+			debug_uv_dialog->set_title("Mesh2D Preview");
+
+			_update_mesh_data();
+			debug_uv_dialog->popup_centered();
+			debug_uv->update();
+
+		} break;
+		case MENU_OPTION_CONVERT_TO_POLYGON_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create Polygon2D"));
+			debug_uv_dialog->set_title("Polygon2D Preview");
+
+			_update_mesh_data();
+			debug_uv_dialog->popup_centered();
+			debug_uv->update();
+		} break;
+		case MENU_OPTION_CREATE_COLLISION_POLY_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create CollisionPolygon2D"));
+			debug_uv_dialog->set_title("CollisionPolygon2D Preview");
+
+			_update_mesh_data();
+			debug_uv_dialog->popup_centered();
+			debug_uv->update();
+
+		} break;
+		case MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D: {
+
+			debug_uv_dialog->get_ok()->set_text(TTR("Create LightOccluder2D"));
+			debug_uv_dialog->set_title("LightOccluder2D Preview");
 
 			_update_mesh_data();
 			debug_uv_dialog->popup_centered();
@@ -169,47 +206,107 @@ void SpriteEditor::_update_mesh_data() {
 	computed_indices.clear();
 
 	Size2 img_size = Vector2(image->get_width(), image->get_height());
-	for (int j = 0; j < lines.size(); j++) {
-		lines.write[j] = expand(lines[j], rect, epsilon);
+	for (int i = 0; i < lines.size(); i++) {
+		lines.write[i] = expand(lines[i], rect, epsilon);
+	}
+
+	if (selected_menu_item == MENU_OPTION_CONVERT_TO_MESH_2D) {
+
+		for (int j = 0; j < lines.size(); j++) {
+			int index_ofs = computed_vertices.size();
+
+			for (int i = 0; i < lines[j].size(); i++) {
+				Vector2 vtx = lines[j][i];
+				computed_uv.push_back(vtx / img_size);
 
-		int index_ofs = computed_vertices.size();
+				vtx -= rect.position; //offset by rect position
 
-		for (int i = 0; i < lines[j].size(); i++) {
-			Vector2 vtx = lines[j][i];
-			computed_uv.push_back(vtx / img_size);
+				//flip if flipped
+				if (node->is_flipped_h())
+					vtx.x = rect.size.x - vtx.x - 1.0;
+				if (node->is_flipped_v())
+					vtx.y = rect.size.y - vtx.y - 1.0;
 
-			vtx -= rect.position; //offset by rect position
+				if (node->is_centered())
+					vtx -= rect.size / 2.0;
 
-			//flip if flipped
-			if (node->is_flipped_h())
-				vtx.x = rect.size.x - vtx.x - 1.0;
-			if (node->is_flipped_v())
-				vtx.y = rect.size.y - vtx.y - 1.0;
+				computed_vertices.push_back(vtx);
+			}
+
+			Vector<int> poly = Geometry::triangulate_polygon(lines[j]);
 
-			if (node->is_centered())
-				vtx -= rect.size / 2.0;
+			for (int i = 0; i < poly.size(); i += 3) {
+				for (int k = 0; k < 3; k++) {
+					int idx = i + k;
+					int idxn = i + (k + 1) % 3;
+					uv_lines.push_back(lines[j][poly[idx]]);
+					uv_lines.push_back(lines[j][poly[idxn]]);
 
-			computed_vertices.push_back(vtx);
+					computed_indices.push_back(poly[idx] + index_ofs);
+				}
+			}
 		}
+	}
 
-		Vector<int> poly = Geometry::triangulate_polygon(lines[j]);
+	outline_lines.clear();
+	computed_outline_lines.clear();
 
-		for (int i = 0; i < poly.size(); i += 3) {
-			for (int k = 0; k < 3; k++) {
-				int idx = i + k;
-				int idxn = i + (k + 1) % 3;
-				uv_lines.push_back(lines[j][poly[idx]]);
-				uv_lines.push_back(lines[j][poly[idxn]]);
+	if (selected_menu_item == MENU_OPTION_CONVERT_TO_POLYGON_2D || selected_menu_item == MENU_OPTION_CREATE_COLLISION_POLY_2D || selected_menu_item == MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D) {
+		outline_lines.resize(lines.size());
+		computed_outline_lines.resize(lines.size());
+		for (int pi = 0; pi < lines.size(); pi++) {
+
+			Vector<Vector2> ol;
+			Vector<Vector2> col;
+
+			ol.resize(lines[pi].size());
+			col.resize(lines[pi].size());
+
+			for (int i = 0; i < lines[pi].size(); i++) {
+				Vector2 vtx = lines[pi][i];
+
+				ol.write[i] = vtx;
+
+				vtx -= rect.position; //offset by rect position
+
+				//flip if flipped
+				if (node->is_flipped_h())
+					vtx.x = rect.size.x - vtx.x - 1.0;
+				if (node->is_flipped_v())
+					vtx.y = rect.size.y - vtx.y - 1.0;
+
+				if (node->is_centered())
+					vtx -= rect.size / 2.0;
 
-				computed_indices.push_back(poly[idx] + index_ofs);
+				col.write[i] = vtx;
 			}
+
+			outline_lines.write[pi] = ol;
+			computed_outline_lines.write[pi] = col;
 		}
 	}
 
 	debug_uv->update();
 }
 
-void SpriteEditor::_create_mesh_node() {
+void SpriteEditor::_create_node() {
+	switch (selected_menu_item) {
+		case MENU_OPTION_CONVERT_TO_MESH_2D: {
+			_convert_to_mesh_2d_node();
+		} break;
+		case MENU_OPTION_CONVERT_TO_POLYGON_2D: {
+			_convert_to_polygon_2d_node();
+		} break;
+		case MENU_OPTION_CREATE_COLLISION_POLY_2D: {
+			_create_collision_polygon_2d_node();
+		} break;
+		case MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D: {
+			_create_light_occluder_2d_node();
+		} break;
+	}
+}
+
+void SpriteEditor::_convert_to_mesh_2d_node() {
 
 	if (computed_vertices.size() < 3) {
 		err_dialog->set_text(TTR("Invalid geometry, can't replace by mesh."));
@@ -233,6 +330,117 @@ void SpriteEditor::_create_mesh_node() {
 	EditorNode::get_singleton()->get_scene_tree_dock()->replace_node(node, mesh_instance);
 }
 
+void SpriteEditor::_convert_to_polygon_2d_node() {
+	Polygon2D *polygon_2d_instance = memnew(Polygon2D);
+
+	int total_point_count = 0;
+	for (int i = 0; i < computed_outline_lines.size(); i++)
+		total_point_count += computed_outline_lines[i].size();
+
+	PoolVector2Array polygon;
+	polygon.resize(total_point_count);
+	PoolVector2Array::Write polygon_write = polygon.write();
+
+	PoolVector2Array uvs;
+	uvs.resize(total_point_count);
+	PoolVector2Array::Write uvs_write = uvs.write();
+
+	int current_point_index = 0;
+
+	Array polys;
+	polys.resize(computed_outline_lines.size());
+
+	for (int i = 0; i < computed_outline_lines.size(); i++) {
+
+		Vector<Vector2> outline = computed_outline_lines[i];
+		Vector<Vector2> uv_outline = outline_lines[i];
+
+		if (outline.size() < 3) {
+			err_dialog->set_text(TTR("Invalid geometry, can't create polygon."));
+			err_dialog->popup_centered_minsize();
+			return;
+		}
+
+		PoolIntArray pia;
+		pia.resize(outline.size());
+		PoolIntArray::Write pia_write = pia.write();
+
+		for (int pi = 0; pi < outline.size(); pi++) {
+			polygon_write[current_point_index] = outline[pi];
+			uvs_write[current_point_index] = uv_outline[pi];
+			pia_write[pi] = current_point_index;
+			current_point_index++;
+		}
+
+		polys[i] = pia;
+	}
+
+	polygon_2d_instance->set_uv(uvs);
+	polygon_2d_instance->set_polygon(polygon);
+	polygon_2d_instance->set_polygons(polys);
+
+	EditorNode::get_singleton()->get_scene_tree_dock()->replace_node(node, polygon_2d_instance);
+}
+
+void SpriteEditor::_create_collision_polygon_2d_node() {
+	for (int i = 0; i < computed_outline_lines.size(); i++) {
+
+		Vector<Vector2> outline = computed_outline_lines[i];
+
+		if (outline.size() < 3) {
+			err_dialog->set_text(TTR("Invalid geometry, can't create collision polygon."));
+			err_dialog->popup_centered_minsize();
+			continue;
+		}
+
+		CollisionPolygon2D *collision_polygon_2d_instance = memnew(CollisionPolygon2D);
+		collision_polygon_2d_instance->set_polygon(outline);
+
+		_add_as_sibling_or_child(node, collision_polygon_2d_instance);
+	}
+}
+
+void SpriteEditor::_create_light_occluder_2d_node() {
+	for (int i = 0; i < computed_outline_lines.size(); i++) {
+
+		Vector<Vector2> outline = computed_outline_lines[i];
+
+		if (outline.size() < 3) {
+			err_dialog->set_text(TTR("Invalid geometry, can't create light occluder."));
+			err_dialog->popup_centered_minsize();
+			continue;
+		}
+
+		Ref<OccluderPolygon2D> polygon;
+		polygon.instance();
+
+		PoolVector2Array a;
+		a.resize(outline.size());
+		PoolVector2Array::Write aw = a.write();
+		for (int io = 0; io < outline.size(); io++) {
+			aw[io] = outline[io];
+		}
+		polygon->set_polygon(a);
+
+		LightOccluder2D *light_occluder_2d_instance = memnew(LightOccluder2D);
+		light_occluder_2d_instance->set_occluder_polygon(polygon);
+
+		_add_as_sibling_or_child(node, light_occluder_2d_instance);
+	}
+}
+
+void SpriteEditor::_add_as_sibling_or_child(Node2D *p_own_node, Node2D *p_new_node) {
+	// Can't make sibling if own node is scene root
+	if (p_own_node != this->get_tree()->get_edited_scene_root()) {
+		p_own_node->get_parent()->add_child(p_new_node, true);
+		p_new_node->set_transform(p_own_node->get_transform());
+	} else {
+		p_own_node->add_child(p_new_node, true);
+	}
+
+	p_new_node->set_owner(this->get_tree()->get_edited_scene_root());
+}
+
 #if 0
 void SpriteEditor::_create_uv_lines() {
 
@@ -298,16 +506,26 @@ void SpriteEditor::_create_uv_lines() {
 #endif
 void SpriteEditor::_debug_uv_draw() {
 
-	if (uv_lines.size() == 0)
-		return;
-
 	Ref<Texture> tex = node->get_texture();
 	ERR_FAIL_COND(!tex.is_valid());
 	debug_uv->set_clip_contents(true);
 	debug_uv->draw_texture(tex, Point2());
 	debug_uv->set_custom_minimum_size(tex->get_size());
 	//debug_uv->draw_set_transform(Vector2(), 0, debug_uv->get_size());
-	debug_uv->draw_multiline(uv_lines, Color(1.0, 0.8, 0.7));
+
+	Color color = Color(1.0, 0.8, 0.7);
+
+	if (selected_menu_item == MENU_OPTION_CONVERT_TO_MESH_2D && uv_lines.size() > 0) {
+		debug_uv->draw_multiline(uv_lines, color);
+
+	} else if ((selected_menu_item == MENU_OPTION_CONVERT_TO_POLYGON_2D || selected_menu_item == MENU_OPTION_CREATE_COLLISION_POLY_2D || selected_menu_item == MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D) && outline_lines.size() > 0) {
+		for (int i = 0; i < outline_lines.size(); i++) {
+			Vector<Vector2> outline = outline_lines[i];
+
+			debug_uv->draw_polyline(outline, color);
+			debug_uv->draw_line(outline[0], outline[outline.size() - 1], color);
+		}
+	}
 }
 
 void SpriteEditor::_bind_methods() {
@@ -315,7 +533,7 @@ void SpriteEditor::_bind_methods() {
 	ClassDB::bind_method("_menu_option", &SpriteEditor::_menu_option);
 	ClassDB::bind_method("_debug_uv_draw", &SpriteEditor::_debug_uv_draw);
 	ClassDB::bind_method("_update_mesh_data", &SpriteEditor::_update_mesh_data);
-	ClassDB::bind_method("_create_mesh_node", &SpriteEditor::_create_mesh_node);
+	ClassDB::bind_method("_create_node", &SpriteEditor::_create_node);
 }
 
 SpriteEditor::SpriteEditor() {
@@ -327,7 +545,11 @@ SpriteEditor::SpriteEditor() {
 	options->set_text(TTR("Sprite"));
 	options->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("Sprite", "EditorIcons"));
 
-	options->get_popup()->add_item(TTR("Convert to 2D Mesh"), MENU_OPTION_CREATE_MESH_2D);
+	options->get_popup()->add_item(TTR("Convert to Mesh2D"), MENU_OPTION_CONVERT_TO_MESH_2D);
+	options->get_popup()->add_item(TTR("Convert to Polygon2D"), MENU_OPTION_CONVERT_TO_POLYGON_2D);
+	options->get_popup()->add_item(TTR("Create CollisionPolygon2D Sibling"), MENU_OPTION_CREATE_COLLISION_POLY_2D);
+	options->get_popup()->add_item(TTR("Create LightOccluder2D Sibling"), MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D);
+	options->set_switch_on_hover(true);
 
 	options->get_popup()->connect("id_pressed", this, "_menu_option");
 
@@ -335,7 +557,7 @@ SpriteEditor::SpriteEditor() {
 	add_child(err_dialog);
 
 	debug_uv_dialog = memnew(ConfirmationDialog);
-	debug_uv_dialog->get_ok()->set_text(TTR("Create 2D Mesh"));
+	debug_uv_dialog->get_ok()->set_text(TTR("Create Mesh2D"));
 	debug_uv_dialog->set_title("Mesh 2D Preview");
 	VBoxContainer *vb = memnew(VBoxContainer);
 	debug_uv_dialog->add_child(vb);
@@ -347,7 +569,7 @@ SpriteEditor::SpriteEditor() {
 	debug_uv = memnew(Control);
 	debug_uv->connect("draw", this, "_debug_uv_draw");
 	scroll->add_child(debug_uv);
-	debug_uv_dialog->connect("confirmed", this, "_create_mesh_node");
+	debug_uv_dialog->connect("confirmed", this, "_create_node");
 
 	HBoxContainer *hb = memnew(HBoxContainer);
 	hb->add_child(memnew(Label(TTR("Simplification: "))));
diff --git a/editor/plugins/sprite_editor_plugin.h b/editor/plugins/sprite_editor_plugin.h
index 7250e3df59..460f5a5707 100644
--- a/editor/plugins/sprite_editor_plugin.h
+++ b/editor/plugins/sprite_editor_plugin.h
@@ -41,9 +41,14 @@ class SpriteEditor : public Control {
 	GDCLASS(SpriteEditor, Control);
 
 	enum Menu {
-		MENU_OPTION_CREATE_MESH_2D,
+		MENU_OPTION_CONVERT_TO_MESH_2D,
+		MENU_OPTION_CONVERT_TO_POLYGON_2D,
+		MENU_OPTION_CREATE_COLLISION_POLY_2D,
+		MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D
 	};
 
+	Menu selected_menu_item;
+
 	Sprite *node;
 
 	MenuButton *options;
@@ -55,7 +60,8 @@ class SpriteEditor : public Control {
 	ConfirmationDialog *debug_uv_dialog;
 	Control *debug_uv;
 	Vector<Vector2> uv_lines;
-
+	Vector<Vector<Vector2> > outline_lines;
+	Vector<Vector<Vector2> > computed_outline_lines;
 	Vector<Vector2> computed_vertices;
 	Vector<Vector2> computed_uv;
 	Vector<int> computed_indices;
@@ -71,7 +77,14 @@ class SpriteEditor : public Control {
 
 	void _debug_uv_draw();
 	void _update_mesh_data();
-	void _create_mesh_node();
+
+	void _create_node();
+	void _convert_to_mesh_2d_node();
+	void _convert_to_polygon_2d_node();
+	void _create_collision_polygon_2d_node();
+	void _create_light_occluder_2d_node();
+
+	void _add_as_sibling_or_child(Node2D *p_own_node, Node2D *p_new_node);
 
 protected:
 	void _node_removed(Node *p_node);
diff --git a/editor/plugins/sprite_frames_editor_plugin.cpp b/editor/plugins/sprite_frames_editor_plugin.cpp
index 89bb7440fe..c509202a88 100644
--- a/editor/plugins/sprite_frames_editor_plugin.cpp
+++ b/editor/plugins/sprite_frames_editor_plugin.cpp
@@ -38,23 +38,207 @@
 void SpriteFramesEditor::_gui_input(Ref<InputEvent> p_event) {
 }
 
-void SpriteFramesEditor::_notification(int p_what) {
+void SpriteFramesEditor::_open_sprite_sheet() {
+
+	file_split_sheet->clear_filters();
+	List<String> extensions;
+	ResourceLoader::get_recognized_extensions_for_type("Texture", &extensions);
+	for (int i = 0; i < extensions.size(); i++) {
+		file_split_sheet->add_filter("*." + extensions[i]);
+	}
+
+	file_split_sheet->popup_centered_ratio();
+}
+
+void SpriteFramesEditor::_sheet_preview_draw() {
+
+	Size2i size = split_sheet_preview->get_size();
+	int h = split_sheet_h->get_value();
+	int v = split_sheet_v->get_value();
+	int width = size.width / h;
+	int height = size.height / v;
+	const float a = 0.3;
+	for (int i = 1; i < h; i++) {
+
+		int x = i * width;
+		split_sheet_preview->draw_line(Point2(x, 0), Point2(x, size.height), Color(1, 1, 1, a));
+		split_sheet_preview->draw_line(Point2(x + 1, 0), Point2(x + 1, size.height), Color(0, 0, 0, a));
+
+		for (int j = 1; j < v; j++) {
+
+			int y = j * height;
+
+			split_sheet_preview->draw_line(Point2(0, y), Point2(size.width, y), Color(1, 1, 1, a));
+			split_sheet_preview->draw_line(Point2(0, y + 1), Point2(size.width, y + 1), Color(0, 0, 0, a));
+		}
+	}
+
+	if (frames_selected.size() == 0) {
+		split_sheet_dialog->get_ok()->set_disabled(true);
+		split_sheet_dialog->get_ok()->set_text(TTR("No Frames Selected"));
+		return;
+	}
+
+	Color accent = get_color("accent_color", "Editor");
+
+	for (Set<int>::Element *E = frames_selected.front(); E; E = E->next()) {
+		int idx = E->get();
+		int xp = idx % h;
+		int yp = (idx - xp) / h;
+		int x = xp * width;
+		int y = yp * height;
+
+		split_sheet_preview->draw_rect(Rect2(x + 5, y + 5, width - 10, height - 10), Color(0, 0, 0, 0.35), true);
+		split_sheet_preview->draw_rect(Rect2(x + 0, y + 0, width - 0, height - 0), Color(0, 0, 0, 1), false);
+		split_sheet_preview->draw_rect(Rect2(x + 1, y + 1, width - 2, height - 2), Color(0, 0, 0, 1), false);
+		split_sheet_preview->draw_rect(Rect2(x + 2, y + 2, width - 4, height - 4), accent, false);
+		split_sheet_preview->draw_rect(Rect2(x + 3, y + 3, width - 6, height - 6), accent, false);
+		split_sheet_preview->draw_rect(Rect2(x + 4, y + 4, width - 8, height - 8), Color(0, 0, 0, 1), false);
+		split_sheet_preview->draw_rect(Rect2(x + 5, y + 5, width - 10, height - 10), Color(0, 0, 0, 1), false);
+	}
+
+	split_sheet_dialog->get_ok()->set_disabled(false);
+	split_sheet_dialog->get_ok()->set_text(vformat(TTR("Add %d Frame(s)"), frames_selected.size()));
+}
+void SpriteFramesEditor::_sheet_preview_input(const Ref<InputEvent> &p_event) {
+
+	Ref<InputEventMouseButton> mb = p_event;
+
+	if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
+		Size2i size = split_sheet_preview->get_size();
+		int h = split_sheet_h->get_value();
+		int v = split_sheet_v->get_value();
+
+		int x = CLAMP(int(mb->get_position().x) * h / size.width, 0, h - 1);
+		int y = CLAMP(int(mb->get_position().y) * v / size.height, 0, v - 1);
+
+		int idx = h * y + x;
+
+		if (mb->get_shift() && last_frame_selected >= 0) {
+			//select multiple
+			int from = idx;
+			int to = last_frame_selected;
+			if (from > to) {
+				SWAP(from, to);
+			}
+
+			for (int i = from; i <= to; i++) {
+				if (mb->get_control()) {
+					frames_selected.erase(i);
+				} else {
+					frames_selected.insert(i);
+				}
+			}
+		} else {
+			if (frames_selected.has(idx)) {
+				frames_selected.erase(idx);
+			} else {
+				frames_selected.insert(idx);
+			}
+		}
+
+		last_frame_selected = idx;
+		split_sheet_preview->update();
+	}
+}
+
+void SpriteFramesEditor::_sheet_add_frames() {
 
-	if (p_what == NOTIFICATION_ENTER_TREE) {
+	Size2i size = split_sheet_preview->get_size();
+	int h = split_sheet_h->get_value();
+	int v = split_sheet_v->get_value();
 
-		load->set_icon(get_icon("Load", "EditorIcons"));
-		copy->set_icon(get_icon("ActionCopy", "EditorIcons"));
-		paste->set_icon(get_icon("ActionPaste", "EditorIcons"));
-		empty->set_icon(get_icon("InsertBefore", "EditorIcons"));
-		empty2->set_icon(get_icon("InsertAfter", "EditorIcons"));
-		move_up->set_icon(get_icon("MoveLeft", "EditorIcons"));
-		move_down->set_icon(get_icon("MoveRight", "EditorIcons"));
-		_delete->set_icon(get_icon("Remove", "EditorIcons"));
-		new_anim->set_icon(get_icon("New", "EditorIcons"));
-		remove_anim->set_icon(get_icon("Remove", "EditorIcons"));
-	} else if (p_what == NOTIFICATION_READY) {
+	undo_redo->create_action(TTR("Add Frame"));
+
+	int fc = frames->get_frame_count(edited_anim);
+
+	for (Set<int>::Element *E = frames_selected.front(); E; E = E->next()) {
+		int idx = E->get();
+		int width = size.width / h;
+		int height = size.height / v;
+		int xp = idx % h;
+		int yp = (idx - xp) / h;
+		int x = xp * width;
+		int y = yp * height;
+
+		Ref<AtlasTexture> at;
+		at.instance();
+		at->set_atlas(split_sheet_preview->get_texture());
+		at->set_region(Rect2(x, y, width, height));
+
+		undo_redo->add_do_method(frames, "add_frame", edited_anim, at, -1);
+		undo_redo->add_undo_method(frames, "remove_frame", edited_anim, fc);
+	}
+
+	undo_redo->add_do_method(this, "_update_library");
+	undo_redo->add_undo_method(this, "_update_library");
+	undo_redo->commit_action();
+}
+
+void SpriteFramesEditor::_sheet_select_clear_all_frames() {
+
+	bool should_clear = true;
+	for (int i = 0; i < split_sheet_h->get_value() * split_sheet_v->get_value(); i++) {
+		if (!frames_selected.has(i)) {
+			frames_selected.insert(i);
+			should_clear = false;
+		}
+	}
+	if (should_clear) {
+		frames_selected.clear();
+	}
+
+	split_sheet_preview->update();
+}
+
+void SpriteFramesEditor::_sheet_spin_changed(double) {
+
+	frames_selected.clear();
+	last_frame_selected = -1;
+	split_sheet_preview->update();
+}
+
+void SpriteFramesEditor::_prepare_sprite_sheet(const String &p_file) {
+
+	Ref<Resource> texture = ResourceLoader::load(p_file);
+	if (!texture.is_valid()) {
+		EditorNode::get_singleton()->show_warning("Unable to load images");
+		ERR_FAIL_COND(!texture.is_valid());
+	}
+	if (texture != split_sheet_preview->get_texture()) {
+		//different texture, reset to 4x4
+		split_sheet_h->set_value(4);
+		split_sheet_v->set_value(4);
+	}
+	frames_selected.clear();
+	last_frame_selected = -1;
 
-		add_constant_override("autohide", 1); // Fixes the dragger always showing up.
+	split_sheet_preview->set_texture(texture);
+	split_sheet_dialog->popup_centered_ratio(0.65);
+}
+
+void SpriteFramesEditor::_notification(int p_what) {
+
+	switch (p_what) {
+		case NOTIFICATION_ENTER_TREE: {
+			load->set_icon(get_icon("Load", "EditorIcons"));
+			load_sheet->set_icon(get_icon("SpriteSheet", "EditorIcons"));
+			copy->set_icon(get_icon("ActionCopy", "EditorIcons"));
+			paste->set_icon(get_icon("ActionPaste", "EditorIcons"));
+			empty->set_icon(get_icon("InsertBefore", "EditorIcons"));
+			empty2->set_icon(get_icon("InsertAfter", "EditorIcons"));
+			move_up->set_icon(get_icon("MoveLeft", "EditorIcons"));
+			move_down->set_icon(get_icon("MoveRight", "EditorIcons"));
+			_delete->set_icon(get_icon("Remove", "EditorIcons"));
+			new_anim->set_icon(get_icon("New", "EditorIcons"));
+			remove_anim->set_icon(get_icon("Remove", "EditorIcons"));
+		} // Fallthrough.
+		case NOTIFICATION_THEME_CHANGED: {
+			splite_sheet_scroll->add_style_override("bg", get_stylebox("bg", "Tree"));
+		} break;
+		case NOTIFICATION_READY: {
+			add_constant_override("autohide", 1); // Fixes the dragger always showing up.
+		} break;
 	}
 }
 
@@ -72,6 +256,7 @@ void SpriteFramesEditor::_file_load_request(const PoolVector<String> &p_path, in
 		if (resource.is_null()) {
 			dialog->set_text(TTR("ERROR: Couldn't load frame resource!"));
 			dialog->set_title(TTR("Error!"));
+
 			//dialog->get_cancel()->set_text("Close");
 			dialog->get_ok()->set_text(TTR("Close"));
 			dialog->popup_centered_minsize();
@@ -278,6 +463,10 @@ void SpriteFramesEditor::_animation_select() {
 	if (updating)
 		return;
 
+	double value = anim_speed->get_line_edit()->get_text().to_double();
+	if (!Math::is_equal_approx(value, frames->get_animation_speed(edited_anim)))
+		_animation_fps_changed(value);
+
 	TreeItem *selected = animations->get_selected();
 	ERR_FAIL_COND(!selected);
 	edited_anim = selected->get_text(0);
@@ -347,9 +536,6 @@ void SpriteFramesEditor::_animation_name_edited() {
 	for (List<Node *>::Element *E = nodes.front(); E; E = E->next()) {
 
 		String current = E->get()->call("get_animation");
-		if (current != edited_anim)
-			continue;
-
 		undo_redo->add_do_method(E->get(), "set_animation", name);
 		undo_redo->add_undo_method(E->get(), "set_animation", edited_anim);
 	}
@@ -382,9 +568,6 @@ void SpriteFramesEditor::_animation_add() {
 	for (List<Node *>::Element *E = nodes.front(); E; E = E->next()) {
 
 		String current = E->get()->call("get_animation");
-		if (frames->has_animation(current))
-			continue;
-
 		undo_redo->add_do_method(E->get(), "set_animation", name);
 		undo_redo->add_undo_method(E->get(), "set_animation", current);
 	}
@@ -661,6 +844,13 @@ void SpriteFramesEditor::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_drag_data_fw"), &SpriteFramesEditor::get_drag_data_fw);
 	ClassDB::bind_method(D_METHOD("can_drop_data_fw"), &SpriteFramesEditor::can_drop_data_fw);
 	ClassDB::bind_method(D_METHOD("drop_data_fw"), &SpriteFramesEditor::drop_data_fw);
+	ClassDB::bind_method(D_METHOD("_prepare_sprite_sheet"), &SpriteFramesEditor::_prepare_sprite_sheet);
+	ClassDB::bind_method(D_METHOD("_open_sprite_sheet"), &SpriteFramesEditor::_open_sprite_sheet);
+	ClassDB::bind_method(D_METHOD("_sheet_preview_draw"), &SpriteFramesEditor::_sheet_preview_draw);
+	ClassDB::bind_method(D_METHOD("_sheet_preview_input"), &SpriteFramesEditor::_sheet_preview_input);
+	ClassDB::bind_method(D_METHOD("_sheet_spin_changed"), &SpriteFramesEditor::_sheet_spin_changed);
+	ClassDB::bind_method(D_METHOD("_sheet_add_frames"), &SpriteFramesEditor::_sheet_add_frames);
+	ClassDB::bind_method(D_METHOD("_sheet_select_clear_all_frames"), &SpriteFramesEditor::_sheet_select_clear_all_frames);
 }
 
 SpriteFramesEditor::SpriteFramesEditor() {
@@ -718,9 +908,15 @@ SpriteFramesEditor::SpriteFramesEditor() {
 	sub_vb->add_child(hbc);
 
 	load = memnew(ToolButton);
-	load->set_tooltip(TTR("Load Resource"));
+	load->set_tooltip(TTR("Add a Texture from File"));
 	hbc->add_child(load);
 
+	load_sheet = memnew(ToolButton);
+	load_sheet->set_tooltip(TTR("Add Frames from a Sprite Sheet"));
+	hbc->add_child(load_sheet);
+
+	hbc->add_child(memnew(VSeparator));
+
 	copy = memnew(ToolButton);
 	copy->set_tooltip(TTR("Copy"));
 	hbc->add_child(copy);
@@ -729,6 +925,8 @@ SpriteFramesEditor::SpriteFramesEditor() {
 	paste->set_tooltip(TTR("Paste"));
 	hbc->add_child(paste);
 
+	hbc->add_spacer(false);
+
 	empty = memnew(ToolButton);
 	empty->set_tooltip(TTR("Insert Empty (Before)"));
 	hbc->add_child(empty);
@@ -737,7 +935,7 @@ SpriteFramesEditor::SpriteFramesEditor() {
 	empty2->set_tooltip(TTR("Insert Empty (After)"));
 	hbc->add_child(empty2);
 
-	hbc->add_spacer(false);
+	hbc->add_child(memnew(VSeparator));
 
 	move_up = memnew(ToolButton);
 	move_up->set_tooltip(TTR("Move (Before)"));
@@ -772,6 +970,7 @@ SpriteFramesEditor::SpriteFramesEditor() {
 	add_child(dialog);
 
 	load->connect("pressed", this, "_load_pressed");
+	load_sheet->connect("pressed", this, "_open_sprite_sheet");
 	_delete->connect("pressed", this, "_delete_pressed");
 	copy->connect("pressed", this, "_copy_pressed");
 	paste->connect("pressed", this, "_paste_pressed");
@@ -786,6 +985,66 @@ SpriteFramesEditor::SpriteFramesEditor() {
 	updating = false;
 
 	edited_anim = "default";
+
+	split_sheet_dialog = memnew(ConfirmationDialog);
+	add_child(split_sheet_dialog);
+	VBoxContainer *split_sheet_vb = memnew(VBoxContainer);
+	split_sheet_dialog->add_child(split_sheet_vb);
+	split_sheet_dialog->set_title(TTR("Select Frames"));
+	split_sheet_dialog->connect("confirmed", this, "_sheet_add_frames");
+
+	HBoxContainer *split_sheet_hb = memnew(HBoxContainer);
+
+	Label *ss_label = memnew(Label(TTR("Horizontal:")));
+	split_sheet_hb->add_child(ss_label);
+	split_sheet_h = memnew(SpinBox);
+	split_sheet_h->set_min(1);
+	split_sheet_h->set_max(128);
+	split_sheet_h->set_step(1);
+	split_sheet_hb->add_child(split_sheet_h);
+	split_sheet_h->connect("value_changed", this, "_sheet_spin_changed");
+
+	ss_label = memnew(Label(TTR("Vertical:")));
+	split_sheet_hb->add_child(ss_label);
+	split_sheet_v = memnew(SpinBox);
+	split_sheet_v->set_min(1);
+	split_sheet_v->set_max(128);
+	split_sheet_v->set_step(1);
+	split_sheet_hb->add_child(split_sheet_v);
+	split_sheet_v->connect("value_changed", this, "_sheet_spin_changed");
+
+	split_sheet_hb->add_spacer();
+
+	Button *select_clear_all = memnew(Button);
+	select_clear_all->set_text(TTR("Select/Clear All Frames"));
+	select_clear_all->connect("pressed", this, "_sheet_select_clear_all_frames");
+	split_sheet_hb->add_child(select_clear_all);
+
+	split_sheet_vb->add_child(split_sheet_hb);
+
+	split_sheet_preview = memnew(TextureRect);
+	split_sheet_preview->set_expand(false);
+	split_sheet_preview->set_mouse_filter(MOUSE_FILTER_PASS);
+	split_sheet_preview->connect("draw", this, "_sheet_preview_draw");
+	split_sheet_preview->connect("gui_input", this, "_sheet_preview_input");
+
+	splite_sheet_scroll = memnew(ScrollContainer);
+	splite_sheet_scroll->set_enable_h_scroll(true);
+	splite_sheet_scroll->set_enable_v_scroll(true);
+	splite_sheet_scroll->set_v_size_flags(SIZE_EXPAND_FILL);
+	CenterContainer *cc = memnew(CenterContainer);
+	cc->add_child(split_sheet_preview);
+	cc->set_h_size_flags(SIZE_EXPAND_FILL);
+	cc->set_v_size_flags(SIZE_EXPAND_FILL);
+	splite_sheet_scroll->add_child(cc);
+
+	split_sheet_vb->add_child(splite_sheet_scroll);
+
+	file_split_sheet = memnew(EditorFileDialog);
+	file_split_sheet->set_title(TTR("Create Frames from Sprite Sheet"));
+	file_split_sheet->set_mode(EditorFileDialog::MODE_OPEN_FILE);
+	add_child(file_split_sheet);
+	file_split_sheet->connect("file_selected", this, "_prepare_sprite_sheet");
 }
 
 void SpriteFramesEditorPlugin::edit(Object *p_object) {
diff --git a/editor/plugins/sprite_frames_editor_plugin.h b/editor/plugins/sprite_frames_editor_plugin.h
index 55dd10074e..d64431cde7 100644
--- a/editor/plugins/sprite_frames_editor_plugin.h
+++ b/editor/plugins/sprite_frames_editor_plugin.h
@@ -37,6 +37,7 @@
 #include "scene/gui/dialogs.h"
 #include "scene/gui/file_dialog.h"
 #include "scene/gui/split_container.h"
+#include "scene/gui/texture_rect.h"
 #include "scene/gui/tree.h"
 
 class SpriteFramesEditor : public HSplitContainer {
@@ -44,6 +45,7 @@ class SpriteFramesEditor : public HSplitContainer {
 	GDCLASS(SpriteFramesEditor, HSplitContainer);
 
 	ToolButton *load;
+	ToolButton *load_sheet;
 	ToolButton *_delete;
 	ToolButton *copy;
 	ToolButton *paste;
@@ -71,6 +73,15 @@ class SpriteFramesEditor : public HSplitContainer {
 
 	StringName edited_anim;
 
+	ConfirmationDialog *split_sheet_dialog;
+	ScrollContainer *splite_sheet_scroll;
+	TextureRect *split_sheet_preview;
+	SpinBox *split_sheet_h;
+	SpinBox *split_sheet_v;
+	EditorFileDialog *file_split_sheet;
+	Set<int> frames_selected;
+	int last_frame_selected;
+
 	void _load_pressed();
 	void _load_scene_pressed();
 	void _file_load_request(const PoolVector<String> &p_path, int p_at_pos = -1);
@@ -99,6 +110,14 @@ class SpriteFramesEditor : public HSplitContainer {
 	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
 	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
 
+	void _open_sprite_sheet();
+	void _prepare_sprite_sheet(const String &p_file);
+	void _sheet_preview_draw();
+	void _sheet_spin_changed(double);
+	void _sheet_preview_input(const Ref<InputEvent> &p_event);
+	void _sheet_add_frames();
+	void _sheet_select_clear_all_frames();
+
 protected:
 	void _notification(int p_what);
 	void _gui_input(Ref<InputEvent> p_event);
diff --git a/editor/plugins/text_editor.cpp b/editor/plugins/text_editor.cpp
index fe32c97a64..becaae3567 100644
--- a/editor/plugins/text_editor.cpp
+++ b/editor/plugins/text_editor.cpp
@@ -66,7 +66,6 @@ void TextEditor::_change_syntax_highlighter(int p_idx) {
 		el = el->next();
 	}
 	set_syntax_highlighter(highlighters[highlighter_menu->get_item_text(p_idx)]);
-	EditorSettings::get_singleton()->set_project_metadata("text_editor", "syntax_highlighter", p_idx);
 }
 
 void TextEditor::_load_theme_settings() {
@@ -95,6 +94,7 @@ void TextEditor::_load_theme_settings() {
 	Color member_variable_color = EDITOR_GET("text_editor/highlighting/member_variable_color");
 	Color mark_color = EDITOR_GET("text_editor/highlighting/mark_color");
 	Color breakpoint_color = EDITOR_GET("text_editor/highlighting/breakpoint_color");
+	Color executing_line_color = EDITOR_GET("text_editor/highlighting/executing_line_color");
 	Color code_folding_color = EDITOR_GET("text_editor/highlighting/code_folding_color");
 	Color search_result_color = EDITOR_GET("text_editor/highlighting/search_result_color");
 	Color search_result_border_color = EDITOR_GET("text_editor/highlighting/search_result_border_color");
@@ -125,6 +125,7 @@ void TextEditor::_load_theme_settings() {
 	text_edit->add_color_override("function_color", function_color);
 	text_edit->add_color_override("member_variable_color", member_variable_color);
 	text_edit->add_color_override("breakpoint_color", breakpoint_color);
+	text_edit->add_color_override("executing_line_color", executing_line_color);
 	text_edit->add_color_override("mark_color", mark_color);
 	text_edit->add_color_override("code_folding_color", code_folding_color);
 	text_edit->add_color_override("search_result_color", search_result_color);
@@ -234,6 +235,14 @@ Variant TextEditor::get_edit_state() {
 void TextEditor::set_edit_state(const Variant &p_state) {
 
 	code_editor->set_edit_state(p_state);
+
+	Dictionary state = p_state;
+	if (state.has("syntax_highlighter")) {
+		int idx = highlighter_menu->get_item_idx_from_text(state["syntax_highlighter"]);
+		if (idx >= 0) {
+			_change_syntax_highlighter(idx);
+		}
+	}
 }
 
 void TextEditor::trim_trailing_whitespace() {
@@ -261,6 +270,15 @@ void TextEditor::goto_line(int p_line, bool p_with_error) {
 	code_editor->goto_line(p_line);
 }
 
+void TextEditor::set_executing_line(int p_line) {
+
+	code_editor->set_executing_line(p_line);
+}
+
+void TextEditor::clear_executing_line() {
+	code_editor->clear_executing_line();
+}
+
 void TextEditor::ensure_focus() {
 
 	code_editor->get_text_edit()->grab_focus();
@@ -299,7 +317,6 @@ void TextEditor::_notification(int p_what) {
 	switch (p_what) {
 		case NOTIFICATION_READY:
 			_load_theme_settings();
-			_change_syntax_highlighter(EditorSettings::get_singleton()->get_project_metadata("text_editor", "syntax_highlighter", 0));
 			break;
 	}
 }
diff --git a/editor/plugins/text_editor.h b/editor/plugins/text_editor.h
index 3c136277df..767001e2f6 100644
--- a/editor/plugins/text_editor.h
+++ b/editor/plugins/text_editor.h
@@ -123,6 +123,8 @@ public:
 	virtual Vector<String> get_functions();
 	virtual void get_breakpoints(List<int> *p_breakpoints);
 	virtual void goto_line(int p_line, bool p_with_error = false);
+	virtual void set_executing_line(int p_line);
+	virtual void clear_executing_line();
 	virtual void trim_trailing_whitespace();
 	virtual void convert_indent_to_spaces();
 	virtual void convert_indent_to_tabs();
diff --git a/editor/plugins/texture_region_editor_plugin.cpp b/editor/plugins/texture_region_editor_plugin.cpp
index 3eeb871380..4e15bd5116 100644
--- a/editor/plugins/texture_region_editor_plugin.cpp
+++ b/editor/plugins/texture_region_editor_plugin.cpp
@@ -64,7 +64,7 @@ void TextureRegionEditor::_region_draw() {
 		return;
 
 	Transform2D mtx;
-	mtx.elements[2] = -draw_ofs;
+	mtx.elements[2] = -draw_ofs * draw_zoom;
 	mtx.scale_basis(Vector2(draw_zoom, draw_zoom));
 
 	VS::get_singleton()->canvas_item_add_set_transform(edit_draw->get_canvas_item(), mtx);
@@ -128,15 +128,14 @@ void TextureRegionEditor::_region_draw() {
 			};
 			for (int i = 0; i < 4; i++) {
 				int next = (i + 1) % 4;
-				edit_draw->draw_line(endpoints[i] - draw_ofs, endpoints[next] - draw_ofs, Color(0.3, 0.7, 1, 1), 2);
+				edit_draw->draw_line(endpoints[i] - draw_ofs * draw_zoom, endpoints[next] - draw_ofs * draw_zoom, Color(0.3, 0.7, 1, 1), 2);
 			}
 		}
 	}
 
 	Ref<Texture> select_handle = get_icon("EditorHandle", "EditorIcons");
 
-	Rect2 scroll_rect(Point2(), mtx.basis_xform(base_tex->get_size()));
-	scroll_rect.expand_to(mtx.basis_xform(edit_draw->get_size()));
+	Rect2 scroll_rect;
 
 	Vector2 endpoints[4] = {
 		mtx.basis_xform(rect.position),
@@ -153,21 +152,23 @@ void TextureRegionEditor::_region_draw() {
 		Vector2 ofs = ((endpoints[i] - endpoints[prev]).normalized() + ((endpoints[i] - endpoints[next]).normalized())).normalized();
 		ofs *= 1.4144 * (select_handle->get_size().width / 2);
 
-		edit_draw->draw_line(endpoints[i] - draw_ofs, endpoints[next] - draw_ofs, color, 2);
+		edit_draw->draw_line(endpoints[i] - draw_ofs * draw_zoom, endpoints[next] - draw_ofs * draw_zoom, color, 2);
 
 		if (snap_mode != SNAP_AUTOSLICE)
-			edit_draw->draw_texture(select_handle, (endpoints[i] + ofs - (select_handle->get_size() / 2)).floor() - draw_ofs);
+			edit_draw->draw_texture(select_handle, (endpoints[i] + ofs - (select_handle->get_size() / 2)).floor() - draw_ofs * draw_zoom);
 
 		ofs = (endpoints[next] - endpoints[i]) / 2;
 		ofs += (endpoints[next] - endpoints[i]).tangent().normalized() * (select_handle->get_size().width / 2);
 
 		if (snap_mode != SNAP_AUTOSLICE)
-			edit_draw->draw_texture(select_handle, (endpoints[i] + ofs - (select_handle->get_size() / 2)).floor() - draw_ofs);
+			edit_draw->draw_texture(select_handle, (endpoints[i] + ofs - (select_handle->get_size() / 2)).floor() - draw_ofs * draw_zoom);
 
 		scroll_rect.expand_to(endpoints[i]);
 	}
 
-	scroll_rect = scroll_rect.grow(200);
+	scroll_rect.position -= edit_draw->get_size();
+	scroll_rect.size += edit_draw->get_size() * 2.0;
+
 	updating_scroll = true;
 	hscroll->set_min(scroll_rect.position.x);
 	hscroll->set_max(scroll_rect.position.x + scroll_rect.size.x);
@@ -205,10 +206,10 @@ void TextureRegionEditor::_region_draw() {
 			margins[3] = obj_styleBox->get_margin_size(MARGIN_RIGHT);
 		}
 		Vector2 pos[4] = {
-			mtx.basis_xform(Vector2(0, margins[0])) + Vector2(0, endpoints[0].y - draw_ofs.y),
-			-mtx.basis_xform(Vector2(0, margins[1])) + Vector2(0, endpoints[2].y - draw_ofs.y),
-			mtx.basis_xform(Vector2(margins[2], 0)) + Vector2(endpoints[0].x - draw_ofs.x, 0),
-			-mtx.basis_xform(Vector2(margins[3], 0)) + Vector2(endpoints[2].x - draw_ofs.x, 0)
+			mtx.basis_xform(Vector2(0, margins[0])) + Vector2(0, endpoints[0].y - draw_ofs.y * draw_zoom),
+			-mtx.basis_xform(Vector2(0, margins[1])) + Vector2(0, endpoints[2].y - draw_ofs.y * draw_zoom),
+			mtx.basis_xform(Vector2(margins[2], 0)) + Vector2(endpoints[0].x - draw_ofs.x * draw_zoom, 0),
+			-mtx.basis_xform(Vector2(margins[3], 0)) + Vector2(endpoints[2].x - draw_ofs.x * draw_zoom, 0)
 		};
 
 		draw_margin_line(edit_draw, pos[0], pos[0] + Vector2(edit_draw->get_size().x, 0));
@@ -220,7 +221,7 @@ void TextureRegionEditor::_region_draw() {
 
 void TextureRegionEditor::_region_input(const Ref<InputEvent> &p_input) {
 	Transform2D mtx;
-	mtx.elements[2] = -draw_ofs;
+	mtx.elements[2] = -draw_ofs * draw_zoom;
 	mtx.scale_basis(Vector2(draw_zoom, draw_zoom));
 
 	Vector2 endpoints[8] = {
@@ -255,10 +256,10 @@ void TextureRegionEditor::_region_input(const Ref<InputEvent> &p_input) {
 						margins[3] = obj_styleBox->get_margin_size(MARGIN_RIGHT);
 					}
 					Vector2 pos[4] = {
-						mtx.basis_xform(rect.position + Vector2(0, margins[0])) - draw_ofs,
-						mtx.basis_xform(rect.position + rect.size - Vector2(0, margins[1])) - draw_ofs,
-						mtx.basis_xform(rect.position + Vector2(margins[2], 0)) - draw_ofs,
-						mtx.basis_xform(rect.position + rect.size - Vector2(margins[3], 0)) - draw_ofs
+						mtx.basis_xform(rect.position + Vector2(0, margins[0])) - draw_ofs * draw_zoom,
+						mtx.basis_xform(rect.position + rect.size - Vector2(0, margins[1])) - draw_ofs * draw_zoom,
+						mtx.basis_xform(rect.position + Vector2(margins[2], 0)) - draw_ofs * draw_zoom,
+						mtx.basis_xform(rect.position + rect.size - Vector2(margins[3], 0)) - draw_ofs * draw_zoom
 					};
 					if (Math::abs(mb->get_position().y - pos[0].y) < 8) {
 						edited_margin = 0;
@@ -415,9 +416,9 @@ void TextureRegionEditor::_region_input(const Ref<InputEvent> &p_input) {
 				}
 			}
 		} else if (mb->get_button_index() == BUTTON_WHEEL_UP && mb->is_pressed()) {
-			_zoom_in();
+			_zoom_on_position(draw_zoom * ((0.95 + (0.05 * mb->get_factor())) / 0.95), mb->get_position());
 		} else if (mb->get_button_index() == BUTTON_WHEEL_DOWN && mb->is_pressed()) {
-			_zoom_out();
+			_zoom_on_position(draw_zoom * (1 - (0.05 * mb->get_factor())), mb->get_position());
 		}
 	}
 
@@ -427,7 +428,7 @@ void TextureRegionEditor::_region_input(const Ref<InputEvent> &p_input) {
 
 		if (mm->get_button_mask() & BUTTON_MASK_MIDDLE || Input::get_singleton()->is_key_pressed(KEY_SPACE)) {
 
-			Vector2 draged(mm->get_relative().x, mm->get_relative().y);
+			Vector2 draged(mm->get_relative().x / draw_zoom, mm->get_relative().y / draw_zoom);
 			hscroll->set_value(hscroll->get_value() - draged.x);
 			vscroll->set_value(vscroll->get_value() - draged.y);
 
@@ -578,25 +579,30 @@ void TextureRegionEditor::_set_snap_sep_y(float p_val) {
 	edit_draw->update();
 }
 
+void TextureRegionEditor::_zoom_on_position(float p_zoom, Point2 p_position) {
+	if (p_zoom < 0.25 || p_zoom > 8)
+		return;
+
+	float prev_zoom = draw_zoom;
+	draw_zoom = p_zoom;
+	Point2 ofs = p_position;
+	ofs = ofs / prev_zoom - ofs / draw_zoom;
+	draw_ofs.x = Math::round(draw_ofs.x + ofs.x);
+	draw_ofs.y = Math::round(draw_ofs.y + ofs.y);
+
+	edit_draw->update();
+}
+
 void TextureRegionEditor::_zoom_in() {
-	if (draw_zoom < 8) {
-		draw_zoom *= 2;
-		edit_draw->update();
-	}
+	_zoom_on_position(draw_zoom * 1.5, edit_draw->get_size() / 2.0);
 }
 
 void TextureRegionEditor::_zoom_reset() {
-	if (draw_zoom == 1)
-		return;
-	draw_zoom = 1;
-	edit_draw->update();
+	_zoom_on_position(1.0, edit_draw->get_size() / 2.0);
 }
 
 void TextureRegionEditor::_zoom_out() {
-	if (draw_zoom > 0.25) {
-		draw_zoom /= 2;
-		edit_draw->update();
-	}
+	_zoom_on_position(draw_zoom / 1.5, edit_draw->get_size() / 2.0);
 }
 
 void TextureRegionEditor::apply_rect(const Rect2 &p_rect) {
@@ -743,6 +749,7 @@ void TextureRegionEditor::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_set_snap_step_y"), &TextureRegionEditor::_set_snap_step_y);
 	ClassDB::bind_method(D_METHOD("_set_snap_sep_x"), &TextureRegionEditor::_set_snap_sep_x);
 	ClassDB::bind_method(D_METHOD("_set_snap_sep_y"), &TextureRegionEditor::_set_snap_sep_y);
+	ClassDB::bind_method(D_METHOD("_zoom_on_position"), &TextureRegionEditor::_zoom_on_position);
 	ClassDB::bind_method(D_METHOD("_zoom_in"), &TextureRegionEditor::_zoom_in);
 	ClassDB::bind_method(D_METHOD("_zoom_reset"), &TextureRegionEditor::_zoom_reset);
 	ClassDB::bind_method(D_METHOD("_zoom_out"), &TextureRegionEditor::_zoom_out);
diff --git a/editor/plugins/texture_region_editor_plugin.h b/editor/plugins/texture_region_editor_plugin.h
index 19eaef9bc3..a49e0fb96c 100644
--- a/editor/plugins/texture_region_editor_plugin.h
+++ b/editor/plugins/texture_region_editor_plugin.h
@@ -110,6 +110,7 @@ class TextureRegionEditor : public VBoxContainer {
 	void _set_snap_step_y(float p_val);
 	void _set_snap_sep_x(float p_val);
 	void _set_snap_sep_y(float p_val);
+	void _zoom_on_position(float p_zoom, Point2 p_position = Point2());
 	void _zoom_in();
 	void _zoom_reset();
 	void _zoom_out();
diff --git a/editor/plugins/theme_editor_plugin.cpp b/editor/plugins/theme_editor_plugin.cpp
index e9b9c03c1e..80e2e99685 100644
--- a/editor/plugins/theme_editor_plugin.cpp
+++ b/editor/plugins/theme_editor_plugin.cpp
@@ -36,7 +36,7 @@
 void ThemeEditor::edit(const Ref<Theme> &p_theme) {
 
 	theme = p_theme;
-	main_vb->set_theme(p_theme);
+	main_container->set_theme(p_theme);
 }
 
 void ThemeEditor::_propagate_redraw(Control *p_at) {
@@ -53,7 +53,7 @@ void ThemeEditor::_propagate_redraw(Control *p_at) {
 
 void ThemeEditor::_refresh_interval() {
 
-	_propagate_redraw(main_vb);
+	_propagate_redraw(main_container);
 }
 
 void ThemeEditor::_type_menu_cbk(int p_option) {
@@ -86,7 +86,7 @@ void ThemeEditor::_name_menu_about_to_show() {
 	}
 
 	name_menu->get_popup()->clear();
-
+	name_menu->get_popup()->set_size(Size2());
 	for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
 
 		name_menu->get_popup()->add_item(E->get());
@@ -574,7 +574,6 @@ void ThemeEditor::_theme_menu_cbk(int p_option) {
 		}
 	}
 
-	//types.sort();
 	types.sort_custom<StringName::AlphCompare>();
 	for (List<StringName>::Element *E = types.front(); E; E = E->next()) {
 
@@ -610,30 +609,14 @@ ThemeEditor::ThemeEditor() {
 
 	time_left = 0;
 
-	scroll = memnew(ScrollContainer);
-	add_child(scroll);
-	scroll->set_anchors_and_margins_preset(Control::PRESET_WIDE, Control::PRESET_MODE_MINSIZE, 3);
-	scroll->set_margin(MARGIN_TOP, 30 * EDSCALE);
-	//scroll->set_enable_h_scroll(true);
-	scroll->set_enable_v_scroll(true);
-	scroll->set_enable_h_scroll(false);
-
-	Panel *panel = memnew(Panel);
-	scroll->add_child(panel);
-	panel->set_custom_minimum_size(Size2(500, 800) * EDSCALE);
-	panel->set_theme(Theme::get_default());
-	panel->set_h_size_flags(SIZE_EXPAND_FILL);
+	HBoxContainer *top_menu = memnew(HBoxContainer);
+	add_child(top_menu);
 
-	main_vb = memnew(VBoxContainer);
-	panel->add_child(main_vb);
-	main_vb->set_anchors_and_margins_preset(Control::PRESET_WIDE, Control::PRESET_MODE_MINSIZE, 4 * EDSCALE);
-
-	HBoxContainer *hb_menu = memnew(HBoxContainer);
-	main_vb->add_child(hb_menu);
+	top_menu->add_child(memnew(Label(TTR("Preview:"))));
+	top_menu->add_spacer(false);
 
 	theme_menu = memnew(MenuButton);
-	theme_menu->set_text(TTR("Edit theme..."));
-	theme_menu->set_flat(false);
+	theme_menu->set_text(TTR("Edit Theme"));
 	theme_menu->set_tooltip(TTR("Theme editing menu."));
 	theme_menu->get_popup()->add_item(TTR("Add Item"), POPUP_ADD);
 	theme_menu->get_popup()->add_item(TTR("Add Class Items"), POPUP_CLASS_ADD);
@@ -643,51 +626,73 @@ ThemeEditor::ThemeEditor() {
 	theme_menu->get_popup()->add_item(TTR("Create Empty Template"), POPUP_CREATE_EMPTY);
 	theme_menu->get_popup()->add_item(TTR("Create Empty Editor Template"), POPUP_CREATE_EDITOR_EMPTY);
 	theme_menu->get_popup()->add_item(TTR("Create From Current Editor Theme"), POPUP_IMPORT_EDITOR_THEME);
-	add_child(theme_menu);
-	theme_menu->set_position(Vector2(3, 3) * EDSCALE);
+	top_menu->add_child(theme_menu);
 	theme_menu->get_popup()->connect("id_pressed", this, "_theme_menu_cbk");
 
+	scroll = memnew(ScrollContainer);
+	add_child(scroll);
+	scroll->set_enable_v_scroll(true);
+	scroll->set_enable_h_scroll(false);
+	scroll->set_v_size_flags(SIZE_EXPAND_FILL);
+
+	main_container = memnew(MarginContainer);
+	scroll->add_child(main_container);
+	main_container->set_clip_contents(true);
+	main_container->set_custom_minimum_size(Size2(700, 0) * EDSCALE);
+	main_container->set_v_size_flags(SIZE_EXPAND_FILL);
+	main_container->set_h_size_flags(SIZE_EXPAND_FILL);
+
+	//// Preview Controls ////
+
+	Panel *panel = memnew(Panel);
+	main_container->add_child(panel);
+	panel->set_theme(Theme::get_default());
+
+	MarginContainer *mc = memnew(MarginContainer);
+	main_container->add_child(mc);
+	mc->set_theme(Theme::get_default());
+	mc->add_constant_override("margin_right", 4 * EDSCALE);
+	mc->add_constant_override("margin_top", 4 * EDSCALE);
+	mc->add_constant_override("margin_left", 4 * EDSCALE);
+	mc->add_constant_override("margin_bottom", 4 * EDSCALE);
+
 	HBoxContainer *main_hb = memnew(HBoxContainer);
-	main_vb->add_child(main_hb);
+	mc->add_child(main_hb);
 
 	VBoxContainer *first_vb = memnew(VBoxContainer);
-	first_vb->set_h_size_flags(SIZE_EXPAND_FILL);
 	main_hb->add_child(first_vb);
-
-	//main_panel->add_child(panel);
-	//panel->set_anchors_and_margins_preset(Control::PRESET_WIDE);
-	//panel->set_margin( MARGIN_TOP,20 );
+	first_vb->set_h_size_flags(SIZE_EXPAND_FILL);
+	first_vb->add_constant_override("separation", 10 * EDSCALE);
 
 	first_vb->add_child(memnew(Label("Label")));
 
 	first_vb->add_child(memnew(Button("Button")));
+	Button *bt = memnew(Button);
+	bt->set_text(TTR("Toggle Button"));
+	bt->set_toggle_mode(true);
+	bt->set_pressed(true);
+	first_vb->add_child(bt);
+	bt = memnew(Button);
+	bt->set_text(TTR("Disabled Button"));
+	bt->set_disabled(true);
+	first_vb->add_child(bt);
 	ToolButton *tb = memnew(ToolButton);
 	tb->set_text("ToolButton");
 	first_vb->add_child(tb);
+
 	CheckButton *cb = memnew(CheckButton);
 	cb->set_text("CheckButton");
 	first_vb->add_child(cb);
+	cb = memnew(CheckButton);
 	CheckBox *cbx = memnew(CheckBox);
 	cbx->set_text("CheckBox");
 	first_vb->add_child(cbx);
 
-	VBoxContainer *bg = memnew(VBoxContainer);
-	bg->set_v_size_flags(SIZE_EXPAND_FILL);
-	VBoxContainer *gbvb = memnew(VBoxContainer);
-	gbvb->set_v_size_flags(SIZE_EXPAND_FILL);
-	CheckBox *rbx1 = memnew(CheckBox);
-	rbx1->set_text(TTR("CheckBox Radio1"));
-	rbx1->set_pressed(true);
-	gbvb->add_child(rbx1);
-	CheckBox *rbx2 = memnew(CheckBox);
-	rbx2->set_text(TTR("CheckBox Radio2"));
-	gbvb->add_child(rbx2);
-	bg->add_child(gbvb);
-	first_vb->add_child(bg);
-
 	MenuButton *test_menu_button = memnew(MenuButton);
 	test_menu_button->set_text("MenuButton");
 	test_menu_button->get_popup()->add_item(TTR("Item"));
+	test_menu_button->get_popup()->add_item(TTR("Disabled Item"));
+	test_menu_button->get_popup()->set_item_disabled(1, true);
 	test_menu_button->get_popup()->add_separator();
 	test_menu_button->get_popup()->add_check_item(TTR("Check Item"));
 	test_menu_button->get_popup()->add_check_item(TTR("Checked Item"));
@@ -696,6 +701,14 @@ ThemeEditor::ThemeEditor() {
 	test_menu_button->get_popup()->add_radio_check_item(TTR("Radio Item"));
 	test_menu_button->get_popup()->add_radio_check_item(TTR("Checked Radio Item"));
 	test_menu_button->get_popup()->set_item_checked(6, true);
+	test_menu_button->get_popup()->add_separator(TTR("Named Sep."));
+
+	PopupMenu *test_submenu = memnew(PopupMenu);
+	test_menu_button->get_popup()->add_child(test_submenu);
+	test_submenu->set_name("submenu");
+	test_menu_button->get_popup()->add_submenu_item(TTR("Submenu"), "submenu");
+	test_submenu->add_item(TTR("Item 1"));
+	test_submenu->add_item(TTR("Item 2"));
 	first_vb->add_child(test_menu_button);
 
 	OptionButton *test_option_button = memnew(OptionButton);
@@ -705,21 +718,7 @@ ThemeEditor::ThemeEditor() {
 	test_option_button->add_item(TTR("Many"));
 	test_option_button->add_item(TTR("Options"));
 	first_vb->add_child(test_option_button);
-
-	ColorPickerButton *cpb = memnew(ColorPickerButton);
-	first_vb->add_child(cpb);
-
-	first_vb->add_child(memnew(HSeparator));
-	first_vb->add_child(memnew(HSlider));
-	first_vb->add_child(memnew(HScrollBar));
-	first_vb->add_child(memnew(SpinBox));
-	ProgressBar *pb = memnew(ProgressBar);
-	pb->set_value(50);
-	first_vb->add_child(pb);
-	Panel *pn = memnew(Panel);
-	pn->set_custom_minimum_size(Size2(40, 40) * EDSCALE);
-	first_vb->add_child(pn);
-	first_vb->add_constant_override("separation", 10 * EDSCALE);
+	first_vb->add_child(memnew(ColorPickerButton));
 
 	VBoxContainer *second_vb = memnew(VBoxContainer);
 	second_vb->set_h_size_flags(SIZE_EXPAND_FILL);
@@ -728,50 +727,48 @@ ThemeEditor::ThemeEditor() {
 	LineEdit *le = memnew(LineEdit);
 	le->set_text("LineEdit");
 	second_vb->add_child(le);
+	le = memnew(LineEdit);
+	le->set_text(TTR("Disabled LineEdit"));
+	le->set_editable(false);
+	second_vb->add_child(le);
 	TextEdit *te = memnew(TextEdit);
 	te->set_text("TextEdit");
-	//te->set_v_size_flags(SIZE_EXPAND_FILL);
-	te->set_custom_minimum_size(Size2(0, 160) * EDSCALE);
+	te->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
 	second_vb->add_child(te);
+	second_vb->add_child(memnew(SpinBox));
 
-	Tree *test_tree = memnew(Tree);
-	second_vb->add_child(test_tree);
-	test_tree->set_custom_minimum_size(Size2(0, 160) * EDSCALE);
-
-	TreeItem *item = test_tree->create_item();
-	item->set_editable(0, true);
-	item->set_text(0, "Tree");
-	item = test_tree->create_item(test_tree->get_root());
-	item->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
-	item->set_editable(0, true);
-	item->set_text(0, "Check");
-	item = test_tree->create_item(test_tree->get_root());
-	item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
-	item->set_editable(0, true);
-	item->set_range_config(0, 0, 20, 0.1);
-	item->set_range(0, 2);
-	item = test_tree->create_item(test_tree->get_root());
-	item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
-	item->set_editable(0, true);
-	item->set_text(0, TTR("Has,Many,Options"));
-	item->set_range(0, 2);
+	HBoxContainer *vhb = memnew(HBoxContainer);
+	second_vb->add_child(vhb);
+	vhb->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
+	vhb->add_child(memnew(VSlider));
+	VScrollBar *vsb = memnew(VScrollBar);
+	vsb->set_page(25);
+	vhb->add_child(vsb);
+	vhb->add_child(memnew(VSeparator));
+	VBoxContainer *hvb = memnew(VBoxContainer);
+	vhb->add_child(hvb);
+	hvb->set_alignment(ALIGN_CENTER);
+	hvb->set_h_size_flags(SIZE_EXPAND_FILL);
+	hvb->add_child(memnew(HSlider));
+	HScrollBar *hsb = memnew(HScrollBar);
+	hsb->set_page(25);
+	hvb->add_child(hsb);
+	HSlider *hs = memnew(HSlider);
+	hs->set_editable(false);
+	hvb->add_child(hs);
+	hvb->add_child(memnew(HSeparator));
+	ProgressBar *pb = memnew(ProgressBar);
+	pb->set_value(50);
+	hvb->add_child(pb);
 
 	VBoxContainer *third_vb = memnew(VBoxContainer);
 	third_vb->set_h_size_flags(SIZE_EXPAND_FILL);
-	third_vb->add_constant_override("separation", 10);
-
+	third_vb->add_constant_override("separation", 10 * EDSCALE);
 	main_hb->add_child(third_vb);
 
-	HBoxContainer *vhb = memnew(HBoxContainer);
-	vhb->set_custom_minimum_size(Size2(0, 160) * EDSCALE);
-	vhb->add_child(memnew(VSeparator));
-	vhb->add_child(memnew(VSlider));
-	vhb->add_child(memnew(VScrollBar));
-	third_vb->add_child(vhb);
-
 	TabContainer *tc = memnew(TabContainer);
 	third_vb->add_child(tc);
-	tc->set_custom_minimum_size(Size2(0, 160) * EDSCALE);
+	tc->set_custom_minimum_size(Size2(0, 135) * EDSCALE);
 	Control *tcc = memnew(Control);
 	tcc->set_name(TTR("Tab 1"));
 	tc->add_child(tcc);
@@ -781,9 +778,41 @@ ThemeEditor::ThemeEditor() {
 	tcc = memnew(Control);
 	tcc->set_name(TTR("Tab 3"));
 	tc->add_child(tcc);
+	tc->set_tab_disabled(2, true);
+
+	Tree *test_tree = memnew(Tree);
+	third_vb->add_child(test_tree);
+	test_tree->set_custom_minimum_size(Size2(0, 175) * EDSCALE);
+	test_tree->add_constant_override("draw_relationship_lines", 1);
+
+	TreeItem *item = test_tree->create_item();
+	item->set_text(0, "Tree");
+	item = test_tree->create_item(test_tree->get_root());
+	item->set_text(0, "Item");
+	item = test_tree->create_item(test_tree->get_root());
+	item->set_editable(0, true);
+	item->set_text(0, TTR("Editable Item"));
+	TreeItem *sub_tree = test_tree->create_item(test_tree->get_root());
+	sub_tree->set_text(0, TTR("Subtree"));
+	item = test_tree->create_item(sub_tree);
+	item->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+	item->set_editable(0, true);
+	item->set_text(0, "Check Item");
+	item = test_tree->create_item(sub_tree);
+	item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
+	item->set_editable(0, true);
+	item->set_range_config(0, 0, 20, 0.1);
+	item->set_range(0, 2);
+	item = test_tree->create_item(sub_tree);
+	item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
+	item->set_editable(0, true);
+	item->set_text(0, TTR("Has,Many,Options"));
+	item->set_range(0, 2);
 
 	main_hb->add_constant_override("separation", 20 * EDSCALE);
 
+	////////
+
 	add_del_dialog = memnew(ConfirmationDialog);
 	add_del_dialog->hide();
 	add_child(add_del_dialog);
@@ -802,6 +831,7 @@ ThemeEditor::ThemeEditor() {
 	type_edit->set_h_size_flags(SIZE_EXPAND_FILL);
 	type_hbc->add_child(type_edit);
 	type_menu = memnew(MenuButton);
+	type_menu->set_flat(false);
 	type_menu->set_text("..");
 	type_hbc->add_child(type_menu);
 
@@ -819,6 +849,7 @@ ThemeEditor::ThemeEditor() {
 	name_edit->set_h_size_flags(SIZE_EXPAND_FILL);
 	name_hbc->add_child(name_edit);
 	name_menu = memnew(MenuButton);
+	type_menu->set_flat(false);
 	name_menu->set_text("..");
 	name_hbc->add_child(name_menu);
 
@@ -844,9 +875,6 @@ ThemeEditor::ThemeEditor() {
 	file_dialog->add_filter("*.theme ; Theme File");
 	add_child(file_dialog);
 	file_dialog->connect("file_selected", this, "_save_template_cbk");
-
-	//MenuButton *name_menu;
-	//LineEdit *name_edit;
 }
 
 void ThemeEditorPlugin::edit(Object *p_node) {
@@ -886,7 +914,6 @@ ThemeEditorPlugin::ThemeEditorPlugin(EditorNode *p_node) {
 	theme_editor = memnew(ThemeEditor);
 	theme_editor->set_custom_minimum_size(Size2(0, 200));
 
-	//p_node->get_viewport()->add_child(theme_editor);
 	button = editor->add_bottom_panel_item(TTR("Theme"), theme_editor);
 	button->hide();
 }
diff --git a/editor/plugins/theme_editor_plugin.h b/editor/plugins/theme_editor_plugin.h
index 352988d69e..cc236907a9 100644
--- a/editor/plugins/theme_editor_plugin.h
+++ b/editor/plugins/theme_editor_plugin.h
@@ -33,6 +33,7 @@
 
 #include "scene/gui/check_box.h"
 #include "scene/gui/file_dialog.h"
+#include "scene/gui/margin_container.h"
 #include "scene/gui/option_button.h"
 #include "scene/gui/scroll_container.h"
 #include "scene/gui/texture_rect.h"
@@ -40,12 +41,12 @@
 
 #include "editor/editor_node.h"
 
-class ThemeEditor : public Control {
+class ThemeEditor : public VBoxContainer {
 
-	GDCLASS(ThemeEditor, Control);
+	GDCLASS(ThemeEditor, VBoxContainer);
 
 	ScrollContainer *scroll;
-	VBoxContainer *main_vb;
+	MarginContainer *main_container;
 	Ref<Theme> theme;
 
 	EditorFileDialog *file_dialog;
diff --git a/editor/plugins/tile_map_editor_plugin.cpp b/editor/plugins/tile_map_editor_plugin.cpp
index b1fc14e88a..29a54f815d 100644
--- a/editor/plugins/tile_map_editor_plugin.cpp
+++ b/editor/plugins/tile_map_editor_plugin.cpp
@@ -66,6 +66,11 @@ void TileMapEditor::_notification(int p_what) {
 
 		case NOTIFICATION_ENTER_TREE: {
 
+			paint_button->set_icon(get_icon("Edit", "EditorIcons"));
+			bucket_fill_button->set_icon(get_icon("Bucket", "EditorIcons"));
+			picker_button->set_icon(get_icon("ColorPick", "EditorIcons"));
+			select_button->set_icon(get_icon("ActionCopy", "EditorIcons"));
+
 			rotate_left_button->set_icon(get_icon("Rotate270", "EditorIcons"));
 			rotate_right_button->set_icon(get_icon("Rotate90", "EditorIcons"));
 			flip_horizontal_button->set_icon(get_icon("MirrorX", "EditorIcons"));
@@ -76,9 +81,6 @@ void TileMapEditor::_notification(int p_what) {
 			search_box->set_clear_button_enabled(true);
 
 			PopupMenu *p = options->get_popup();
-			p->set_item_icon(p->get_item_index(OPTION_PAINTING), get_icon("Edit", "EditorIcons"));
-			p->set_item_icon(p->get_item_index(OPTION_PICK_TILE), get_icon("ColorPick", "EditorIcons"));
-			p->set_item_icon(p->get_item_index(OPTION_SELECT), get_icon("ActionCopy", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(OPTION_CUT), get_icon("ActionCut", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(OPTION_COPY), get_icon("Duplicate", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(OPTION_ERASE_SELECTION), get_icon("Remove", "EditorIcons"));
@@ -87,37 +89,54 @@ void TileMapEditor::_notification(int p_what) {
 	}
 }
 
-void TileMapEditor::_menu_option(int p_option) {
+void TileMapEditor::_update_button_tool() {
 
-	switch (p_option) {
-
-		case OPTION_PAINTING: {
-			// NOTE: We do not set tool = TOOL_PAINTING as this begins painting
-			// immediately without pressing the left mouse button first
-			tool = TOOL_NONE;
-
-			CanvasItemEditor::get_singleton()->update_viewport();
+	ToolButton *tb[4] = { paint_button, bucket_fill_button, picker_button, select_button };
+	// Unpress all buttons
+	for (int i = 0; i < 4; i++) {
+		tb[i]->set_pressed(false);
+	}
 
+	// Press the good button
+	switch (tool) {
+		case TOOL_NONE:
+		case TOOL_PAINTING: {
+			paint_button->set_pressed(true);
 		} break;
-		case OPTION_BUCKET: {
-
-			tool = TOOL_BUCKET;
-
-			CanvasItemEditor::get_singleton()->update_viewport();
+		case TOOL_BUCKET: {
+			bucket_fill_button->set_pressed(true);
+		} break;
+		case TOOL_PICKING: {
+			picker_button->set_pressed(true);
 		} break;
-		case OPTION_PICK_TILE: {
+		case TOOL_SELECTING: {
+			select_button->set_pressed(true);
+		} break;
+		default:
+			break;
+	}
 
-			tool = TOOL_PICKING;
+	if (tool != TOOL_PICKING)
+		last_tool = tool;
+}
 
-			CanvasItemEditor::get_singleton()->update_viewport();
-		} break;
-		case OPTION_SELECT: {
+void TileMapEditor::_button_tool_select(int p_tool) {
+	tool = (Tool)p_tool;
+	_update_button_tool();
+	switch (tool) {
+		case TOOL_SELECTING: {
 
-			tool = TOOL_SELECTING;
 			selection_active = false;
-
-			CanvasItemEditor::get_singleton()->update_viewport();
 		} break;
+		default:
+			break;
+	}
+	CanvasItemEditor::get_singleton()->update_viewport();
+}
+
+void TileMapEditor::_menu_option(int p_option) {
+
+	switch (p_option) {
 		case OPTION_COPY: {
 
 			_update_copydata();
@@ -168,6 +187,7 @@ void TileMapEditor::_menu_option(int p_option) {
 			}
 		} break;
 	}
+	_update_button_tool();
 }
 
 void TileMapEditor::_palette_selected(int index) {
@@ -220,22 +240,23 @@ void TileMapEditor::set_selected_tiles(Vector<int> p_tiles) {
 	palette->ensure_current_is_visible();
 }
 
-void TileMapEditor::_create_set_cell_undo(const Vector2 &p_vec, const CellOp &p_cell_old, const CellOp &p_cell_new) {
+Dictionary TileMapEditor::_create_cell_dictionary(int tile, bool flip_x, bool flip_y, bool transpose, Vector2 autotile_coord) {
+
+	Dictionary cell;
+
+	cell["id"] = tile;
+	cell["flip_h"] = flip_x;
+	cell["flip_y"] = flip_y;
+	cell["transpose"] = transpose;
+	cell["auto_coord"] = autotile_coord;
 
-	Dictionary cell_old;
-	Dictionary cell_new;
+	return cell;
+}
 
-	cell_old["id"] = p_cell_old.idx;
-	cell_old["flip_h"] = p_cell_old.xf;
-	cell_old["flip_y"] = p_cell_old.yf;
-	cell_old["transpose"] = p_cell_old.tr;
-	cell_old["auto_coord"] = p_cell_old.ac;
+void TileMapEditor::_create_set_cell_undo_redo(const Vector2 &p_vec, const CellOp &p_cell_old, const CellOp &p_cell_new) {
 
-	cell_new["id"] = p_cell_new.idx;
-	cell_new["flip_h"] = p_cell_new.xf;
-	cell_new["flip_y"] = p_cell_new.yf;
-	cell_new["transpose"] = p_cell_new.tr;
-	cell_new["auto_coord"] = p_cell_new.ac;
+	Dictionary cell_old = _create_cell_dictionary(p_cell_old.idx, p_cell_old.xf, p_cell_old.yf, p_cell_old.tr, p_cell_old.ac);
+	Dictionary cell_new = _create_cell_dictionary(p_cell_new.idx, p_cell_new.xf, p_cell_new.yf, p_cell_new.tr, p_cell_new.ac);
 
 	undo_redo->add_undo_method(node, "_set_celld", p_vec, cell_old);
 	undo_redo->add_do_method(node, "_set_celld", p_vec, cell_new);
@@ -251,7 +272,7 @@ void TileMapEditor::_finish_undo() {
 
 	if (undo_data.size()) {
 		for (Map<Point2i, CellOp>::Element *E = undo_data.front(); E; E = E->next()) {
-			_create_set_cell_undo(E->key(), E->get(), _get_op_from_cell(E->key()));
+			_create_set_cell_undo_redo(E->key(), E->get(), _get_op_from_cell(E->key()));
 		}
 
 		undo_data.clear();
@@ -299,7 +320,8 @@ void TileMapEditor::_set_cell(const Point2i &p_pos, Vector<int> p_values, bool p
 		}
 	}
 
-	node->set_cell(p_pos.x, p_pos.y, p_value, p_flip_h, p_flip_v, p_transpose, p_autotile_coord);
+	node->_set_celld(p_pos, _create_cell_dictionary(p_value, p_flip_h, p_flip_v, p_transpose, p_autotile_coord));
+
 	if (manual_autotile || (p_value != -1 && node->get_tileset()->tile_get_tile_mode(p_value) == TileSet::ATLAS_TILE)) {
 		if (current != -1) {
 			node->set_cell_autotile_coord(p_pos.x, p_pos.y, position);
@@ -477,10 +499,10 @@ void TileMapEditor::_update_palette() {
 	if (sel_tile != TileMap::INVALID_CELL) {
 		if ((manual_autotile && tileset->tile_get_tile_mode(sel_tile) == TileSet::AUTO_TILE) || tileset->tile_get_tile_mode(sel_tile) == TileSet::ATLAS_TILE) {
 
-			const Map<Vector2, uint16_t> &tiles2 = tileset->autotile_get_bitmask_map(sel_tile);
+			const Map<Vector2, uint32_t> &tiles2 = tileset->autotile_get_bitmask_map(sel_tile);
 
 			Vector<Vector2> entries2;
-			for (const Map<Vector2, uint16_t>::Element *E = tiles2.front(); E; E = E->next()) {
+			for (const Map<Vector2, uint32_t>::Element *E = tiles2.front(); E; E = E->next()) {
 				entries2.push_back(E->key());
 			}
 			entries2.sort();
@@ -928,11 +950,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 					if (mb->get_shift()) {
 
-#ifdef APPLE_STYLE_KEYS
 						if (mb->get_command())
-#else
-						if (mb->get_control())
-#endif
 							tool = TOOL_RECTANGLE_PAINT;
 						else
 							tool = TOOL_LINE_PAINT;
@@ -940,20 +958,20 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 						selection_active = false;
 						rectangle_begin = over_tile;
 
+						_update_button_tool();
 						return true;
 					}
-#ifdef APPLE_STYLE_KEYS
+
 					if (mb->get_command()) {
-#else
-					if (mb->get_control()) {
-#endif
 						tool = TOOL_PICKING;
 						_pick_tile(over_tile);
+						_update_button_tool();
 
 						return true;
 					}
 
 					tool = TOOL_PAINTING;
+					_update_button_tool();
 				}
 
 				if (tool == TOOL_PAINTING) {
@@ -975,6 +993,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 					rectangle_begin = over_tile;
 				}
 
+				_update_button_tool();
 				return true;
 
 			} else {
@@ -1071,6 +1090,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 					}
 
 					tool = TOOL_NONE;
+					_update_button_tool();
 
 					return true;
 				}
@@ -1086,6 +1106,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 					CanvasItemEditor::get_singleton()->update_viewport();
 
+					_update_button_tool();
 					return true;
 				}
 
@@ -1096,6 +1117,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 					CanvasItemEditor::get_singleton()->update_viewport();
 
+					_update_button_tool();
 					return true;
 				}
 
@@ -1108,11 +1130,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 					_start_undo(TTR("Erase TileMap"));
 
 					if (mb->get_shift()) {
-#ifdef APPLE_STYLE_KEYS
 						if (mb->get_command())
-#else
-						if (mb->get_control())
-#endif
 							tool = TOOL_RECTANGLE_ERASE;
 						else
 							tool = TOOL_LINE_ERASE;
@@ -1126,6 +1144,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 						_set_cell(local, invalid_cell);
 					}
 
+					_update_button_tool();
 					return true;
 				}
 
@@ -1140,6 +1159,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 					tool = TOOL_NONE;
 
+					_update_button_tool();
 					return true;
 
 				} else if (tool == TOOL_BUCKET) {
@@ -1314,6 +1334,14 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 	if (k.is_valid() && k->is_pressed()) {
 
+		if (last_tool == TOOL_NONE && tool == TOOL_PICKING && k->get_scancode() == KEY_SHIFT && k->get_command()) {
+			// trying to draw a rectangle with the painting tool, so change to the correct tool
+			tool = last_tool;
+
+			CanvasItemEditor::get_singleton()->update_viewport();
+			_update_button_tool();
+		}
+
 		if (k->get_scancode() == KEY_ESCAPE) {
 
 			if (tool == TOOL_PASTING)
@@ -1325,6 +1353,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 			CanvasItemEditor::get_singleton()->update_viewport();
 
+			_update_button_tool();
 			return true;
 		}
 
@@ -1339,17 +1368,20 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 			tool = TOOL_NONE;
 			CanvasItemEditor::get_singleton()->update_viewport();
 
+			_update_button_tool();
 			return true;
 		}
 		if (ED_IS_SHORTCUT("tile_map_editor/bucket_fill", p_event)) {
 			tool = TOOL_BUCKET;
 			CanvasItemEditor::get_singleton()->update_viewport();
 
+			_update_button_tool();
 			return true;
 		}
 		if (ED_IS_SHORTCUT("tile_map_editor/erase_selection", p_event)) {
 			_menu_option(OPTION_ERASE_SELECTION);
 
+			_update_button_tool();
 			return true;
 		}
 		if (ED_IS_SHORTCUT("tile_map_editor/select", p_event)) {
@@ -1358,6 +1390,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 			CanvasItemEditor::get_singleton()->update_viewport();
 
+			_update_button_tool();
 			return true;
 		}
 		if (ED_IS_SHORTCUT("tile_map_editor/copy_selection", p_event)) {
@@ -1368,6 +1401,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 
 				CanvasItemEditor::get_singleton()->update_viewport();
 
+				_update_button_tool();
 				return true;
 			}
 		}
@@ -1384,6 +1418,7 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 				tool = TOOL_PASTING;
 
 				CanvasItemEditor::get_singleton()->update_viewport();
+				_update_button_tool();
 				return true;
 			}
 		}
@@ -1411,8 +1446,30 @@ bool TileMapEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 			CanvasItemEditor::get_singleton()->update_viewport();
 			return true;
 		}
-	}
+	} else if (k.is_valid()) { // release event
 
+		if (tool == TOOL_NONE) {
+
+			if (k->get_scancode() == KEY_SHIFT && k->get_command()) {
+
+				tool = TOOL_PICKING;
+				_update_button_tool();
+			}
+		} else if (tool == TOOL_PICKING) {
+
+#ifdef APPLE_STYLE_KEYS
+			if (k->get_scancode() == KEY_META) {
+#else
+			if (k->get_scancode() == KEY_CONTROL) {
+#endif
+				// go back to that last tool if KEY_CONTROL was released
+				tool = last_tool;
+
+				CanvasItemEditor::get_singleton()->update_viewport();
+				_update_button_tool();
+			}
+		}
+	}
 	return false;
 }
 
@@ -1434,9 +1491,9 @@ void TileMapEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
 		aabb.expand_to(node->world_to_map(xform_inv.xform(screen_size)));
 		Rect2i si = aabb.grow(1.0);
 
-		if (node->get_half_offset() != TileMap::HALF_OFFSET_X) {
+		if (node->get_half_offset() != TileMap::HALF_OFFSET_X && node->get_half_offset() != TileMap::HALF_OFFSET_NEGATIVE_X) {
 
-			int max_lines = 2000; //avoid crash if size too smal
+			int max_lines = 2000; //avoid crash if size too small
 
 			for (int i = (si.position.x) - 1; i <= (si.position.x + si.size.x); i++) {
 
@@ -1450,7 +1507,7 @@ void TileMapEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
 			}
 		} else {
 
-			int max_lines = 10000; //avoid crash if size too smal
+			int max_lines = 10000; //avoid crash if size too small
 
 			for (int i = (si.position.x) - 1; i <= (si.position.x + si.size.x); i++) {
 
@@ -1458,7 +1515,7 @@ void TileMapEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
 
 					Vector2 ofs;
 					if (ABS(j) & 1) {
-						ofs = cell_xf[0] * 0.5;
+						ofs = cell_xf[0] * (node->get_half_offset() == TileMap::HALF_OFFSET_X ? 0.5 : -0.5);
 					}
 
 					Vector2 from = xform.xform(node->map_to_world(Vector2(i, j), true) + ofs);
@@ -1477,7 +1534,7 @@ void TileMapEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
 
 		int max_lines = 10000; //avoid crash if size too smal
 
-		if (node->get_half_offset() != TileMap::HALF_OFFSET_Y) {
+		if (node->get_half_offset() != TileMap::HALF_OFFSET_Y && node->get_half_offset() != TileMap::HALF_OFFSET_NEGATIVE_Y) {
 
 			for (int i = (si.position.y) - 1; i <= (si.position.y + si.size.y); i++) {
 
@@ -1498,7 +1555,7 @@ void TileMapEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
 
 					Vector2 ofs;
 					if (ABS(j) & 1) {
-						ofs = cell_xf[1] * 0.5;
+						ofs = cell_xf[1] * (node->get_half_offset() == TileMap::HALF_OFFSET_Y ? 0.5 : -0.5);
 					}
 
 					Vector2 from = xform.xform(node->map_to_world(Vector2(j, i), true) + ofs);
@@ -1539,8 +1596,12 @@ void TileMapEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
 		for (int i = 0; i < 4; i++) {
 			if (node->get_half_offset() == TileMap::HALF_OFFSET_X && ABS(over_tile.y) & 1)
 				endpoints[i] += cell_xf[0] * 0.5;
+			if (node->get_half_offset() == TileMap::HALF_OFFSET_NEGATIVE_X && ABS(over_tile.y) & 1)
+				endpoints[i] += cell_xf[0] * -0.5;
 			if (node->get_half_offset() == TileMap::HALF_OFFSET_Y && ABS(over_tile.x) & 1)
 				endpoints[i] += cell_xf[1] * 0.5;
+			if (node->get_half_offset() == TileMap::HALF_OFFSET_NEGATIVE_Y && ABS(over_tile.x) & 1)
+				endpoints[i] += cell_xf[1] * -0.5;
 			endpoints[i] = xform.xform(endpoints[i]);
 		}
 		Color col;
@@ -1692,6 +1753,7 @@ void TileMapEditor::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_text_entered"), &TileMapEditor::_text_entered);
 	ClassDB::bind_method(D_METHOD("_text_changed"), &TileMapEditor::_text_changed);
 	ClassDB::bind_method(D_METHOD("_sbox_input"), &TileMapEditor::_sbox_input);
+	ClassDB::bind_method(D_METHOD("_button_tool_select"), &TileMapEditor::_button_tool_select);
 	ClassDB::bind_method(D_METHOD("_menu_option"), &TileMapEditor::_menu_option);
 	ClassDB::bind_method(D_METHOD("_canvas_mouse_enter"), &TileMapEditor::_canvas_mouse_enter);
 	ClassDB::bind_method(D_METHOD("_canvas_mouse_exit"), &TileMapEditor::_canvas_mouse_exit);
@@ -1872,37 +1934,66 @@ TileMapEditor::TileMapEditor(EditorNode *p_editor) {
 
 	// Add menu items
 	toolbar = memnew(HBoxContainer);
-	toolbar->set_h_size_flags(SIZE_EXPAND_FILL);
-	toolbar->set_alignment(BoxContainer::ALIGN_END);
 	toolbar->hide();
 	CanvasItemEditor::get_singleton()->add_control_to_menu_panel(toolbar);
 
+	// Separator
+	toolbar->add_child(memnew(VSeparator));
+
+	// Tools
+	paint_button = memnew(ToolButton);
+	paint_button->set_shortcut(ED_SHORTCUT("tile_map_editor/paint_tile", TTR("Paint Tile"), KEY_P));
+	paint_button->set_tooltip(TTR("Shift+RMB: Line Draw\nShift+Ctrl+RMB: Rectangle Paint"));
+	paint_button->connect("pressed", this, "_button_tool_select", make_binds(TOOL_NONE));
+	paint_button->set_toggle_mode(true);
+	toolbar->add_child(paint_button);
+
+	bucket_fill_button = memnew(ToolButton);
+	bucket_fill_button->set_shortcut(ED_SHORTCUT("tile_map_editor/bucket_fill", TTR("Bucket Fill"), KEY_G));
+	bucket_fill_button->connect("pressed", this, "_button_tool_select", make_binds(TOOL_BUCKET));
+	bucket_fill_button->set_toggle_mode(true);
+	toolbar->add_child(bucket_fill_button);
+
+	picker_button = memnew(ToolButton);
+	picker_button->set_shortcut(ED_SHORTCUT("tile_map_editor/pick_tile", TTR("Pick Tile"), KEY_CONTROL));
+	picker_button->connect("pressed", this, "_button_tool_select", make_binds(TOOL_PICKING));
+	picker_button->set_toggle_mode(true);
+	toolbar->add_child(picker_button);
+
+	select_button = memnew(ToolButton);
+	select_button->set_shortcut(ED_SHORTCUT("tile_map_editor/select", TTR("Select"), KEY_MASK_CMD + KEY_B));
+	select_button->connect("pressed", this, "_button_tool_select", make_binds(TOOL_SELECTING));
+	select_button->set_toggle_mode(true);
+	toolbar->add_child(select_button);
+
+	_update_button_tool();
+
+	// Container to the right of the toolbar
+	toolbar_right = memnew(HBoxContainer);
+	toolbar_right->hide();
+	toolbar_right->set_h_size_flags(SIZE_EXPAND_FILL);
+	toolbar_right->set_alignment(BoxContainer::ALIGN_END);
+	CanvasItemEditor::get_singleton()->add_control_to_menu_panel(toolbar_right);
+
 	// Tile position
 	tile_info = memnew(Label);
-	toolbar->add_child(tile_info);
+	toolbar_right->add_child(tile_info);
 
+	// Menu
 	options = memnew(MenuButton);
 	options->set_text("TileMap");
 	options->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("TileMap", "EditorIcons"));
 	options->set_process_unhandled_key_input(false);
+	toolbar_right->add_child(options);
 
 	PopupMenu *p = options->get_popup();
-
-	p->add_shortcut(ED_SHORTCUT("tile_map_editor/paint_tile", TTR("Paint Tile"), KEY_P), OPTION_PAINTING);
-	p->add_shortcut(ED_SHORTCUT("tile_map_editor/bucket_fill", TTR("Bucket Fill"), KEY_G), OPTION_BUCKET);
-	p->add_separator();
-	p->add_item(TTR("Pick Tile"), OPTION_PICK_TILE, KEY_CONTROL);
-	p->add_separator();
-	p->add_shortcut(ED_SHORTCUT("tile_map_editor/select", TTR("Select"), KEY_MASK_CMD + KEY_B), OPTION_SELECT);
 	p->add_shortcut(ED_SHORTCUT("tile_map_editor/cut_selection", TTR("Cut Selection"), KEY_MASK_CMD + KEY_X), OPTION_CUT);
 	p->add_shortcut(ED_SHORTCUT("tile_map_editor/copy_selection", TTR("Copy Selection"), KEY_MASK_CMD + KEY_C), OPTION_COPY);
 	p->add_shortcut(ED_GET_SHORTCUT("tile_map_editor/erase_selection"), OPTION_ERASE_SELECTION);
 	p->add_separator();
 	p->add_item(TTR("Fix Invalid Tiles"), OPTION_FIX_INVALID);
-
 	p->connect("id_pressed", this, "_menu_option");
 
-	toolbar->add_child(options);
 	rotate_left_button = memnew(ToolButton);
 	rotate_left_button->set_tooltip(TTR("Rotate left"));
 	rotate_left_button->set_focus_mode(FOCUS_NONE);
@@ -1976,10 +2067,12 @@ void TileMapEditorPlugin::make_visible(bool p_visible) {
 
 		tile_map_editor->show();
 		tile_map_editor->get_toolbar()->show();
+		tile_map_editor->get_toolbar_right()->show();
 	} else {
 
 		tile_map_editor->hide();
 		tile_map_editor->get_toolbar()->hide();
+		tile_map_editor->get_toolbar_right()->hide();
 		tile_map_editor->edit(NULL);
 	}
 }
diff --git a/editor/plugins/tile_map_editor_plugin.h b/editor/plugins/tile_map_editor_plugin.h
index b30426eabe..fcdada1111 100644
--- a/editor/plugins/tile_map_editor_plugin.h
+++ b/editor/plugins/tile_map_editor_plugin.h
@@ -66,12 +66,8 @@ class TileMapEditor : public VBoxContainer {
 
 	enum Options {
 
-		OPTION_BUCKET,
-		OPTION_PICK_TILE,
-		OPTION_SELECT,
 		OPTION_COPY,
 		OPTION_ERASE_SELECTION,
-		OPTION_PAINTING,
 		OPTION_FIX_INVALID,
 		OPTION_CUT
 	};
@@ -90,10 +86,16 @@ class TileMapEditor : public VBoxContainer {
 	ItemList *manual_palette;
 
 	HBoxContainer *toolbar;
+	HBoxContainer *toolbar_right;
 
 	Label *tile_info;
 	MenuButton *options;
 
+	ToolButton *paint_button;
+	ToolButton *bucket_fill_button;
+	ToolButton *picker_button;
+	ToolButton *select_button;
+
 	ToolButton *flip_horizontal_button;
 	ToolButton *flip_vertical_button;
 	ToolButton *rotate_left_button;
@@ -103,6 +105,7 @@ class TileMapEditor : public VBoxContainer {
 	CheckBox *manual_button;
 
 	Tool tool;
+	Tool last_tool;
 
 	bool selection_active;
 	bool mouse_over;
@@ -184,13 +187,16 @@ class TileMapEditor : public VBoxContainer {
 	void _text_changed(const String &p_text);
 	void _sbox_input(const Ref<InputEvent> &p_ie);
 	void _update_palette();
+	void _update_button_tool();
+	void _button_tool_select(int p_tool);
 	void _menu_option(int p_option);
 	void _palette_selected(int index);
 	void _palette_multi_selected(int index, bool selected);
 
+	Dictionary _create_cell_dictionary(int tile, bool flip_x, bool flip_y, bool transpose, Vector2 autotile_coord);
 	void _start_undo(const String &p_action);
 	void _finish_undo();
-	void _create_set_cell_undo(const Vector2 &p_vec, const CellOp &p_cell_old, const CellOp &p_cell_new);
+	void _create_set_cell_undo_redo(const Vector2 &p_vec, const CellOp &p_cell_old, const CellOp &p_cell_new);
 	void _set_cell(const Point2i &p_pos, Vector<int> p_values, bool p_flip_h = false, bool p_flip_v = false, bool p_transpose = false, const Point2i p_autotile_coord = Point2());
 
 	void _canvas_mouse_enter();
@@ -210,6 +216,7 @@ protected:
 
 public:
 	HBoxContainer *get_toolbar() const { return toolbar; }
+	HBoxContainer *get_toolbar_right() const { return toolbar_right; }
 
 	bool forward_gui_input(const Ref<InputEvent> &p_event);
 	void forward_canvas_draw_over_viewport(Control *p_overlay);
diff --git a/editor/plugins/tile_set_editor_plugin.cpp b/editor/plugins/tile_set_editor_plugin.cpp
index dc099b84a7..21470d81ed 100644
--- a/editor/plugins/tile_set_editor_plugin.cpp
+++ b/editor/plugins/tile_set_editor_plugin.cpp
@@ -734,7 +734,7 @@ void TileSetEditor::_on_edit_mode_changed(int p_edit_mode) {
 			tools[SHAPE_KEEP_INSIDE_TILE]->hide();
 
 			tools[TOOL_SELECT]->set_pressed(true);
-			tools[TOOL_SELECT]->set_tooltip(TTR("LMB: Set bit on.\nRMB: Set bit off.\nClick on another Tile to edit it."));
+			tools[TOOL_SELECT]->set_tooltip(TTR("LMB: Set bit on.\nRMB: Set bit off.\nShift+LMB: Set wildcard bit.\nClick on another Tile to edit it."));
 			spin_priority->hide();
 		} break;
 		case EDITMODE_Z_INDEX:
@@ -770,7 +770,8 @@ void TileSetEditor::_on_edit_mode_changed(int p_edit_mode) {
 				spin_z_index->show();
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 	_update_toggle_shape_button();
 	workspace->update();
@@ -818,52 +819,92 @@ void TileSetEditor::_on_workspace_draw() {
 			} break;
 			case EDITMODE_BITMASK: {
 				Color c(1, 0, 0, 0.5);
+				Color ci(0.3, 0.6, 1, 0.5);
 				for (float x = 0; x < region.size.x / (spacing + size.x); x++) {
 					for (float y = 0; y < region.size.y / (spacing + size.y); y++) {
 						Vector2 coord(x, y);
 						Point2 anchor(coord.x * (spacing + size.x), coord.y * (spacing + size.y));
 						anchor += WORKSPACE_MARGIN;
 						anchor += region.position;
-						uint16_t mask = tileset->autotile_get_bitmask(get_current_tile(), coord);
+						uint32_t mask = tileset->autotile_get_bitmask(get_current_tile(), coord);
 						if (tileset->autotile_get_bitmask_mode(get_current_tile()) == TileSet::BITMASK_2X2) {
-							if (mask & TileSet::BIND_TOPLEFT) {
+							if (mask & TileSet::BIND_IGNORE_TOPLEFT) {
+								workspace->draw_rect(Rect2(anchor, size / 4), ci);
+								workspace->draw_rect(Rect2(anchor + size / 4, size / 4), ci);
+							} else if (mask & TileSet::BIND_TOPLEFT) {
 								workspace->draw_rect(Rect2(anchor, size / 2), c);
 							}
-							if (mask & TileSet::BIND_TOPRIGHT) {
+							if (mask & TileSet::BIND_IGNORE_TOPRIGHT) {
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 2, 0), size / 4), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x * 3 / 4, size.y / 4), size / 4), ci);
+							} else if (mask & TileSet::BIND_TOPRIGHT) {
 								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 2, 0), size / 2), c);
 							}
-							if (mask & TileSet::BIND_BOTTOMLEFT) {
+							if (mask & TileSet::BIND_IGNORE_BOTTOMLEFT) {
+								workspace->draw_rect(Rect2(anchor + Vector2(0, size.y / 2), size / 4), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 4, size.y * 3 / 4), size / 4), ci);
+							} else if (mask & TileSet::BIND_BOTTOMLEFT) {
 								workspace->draw_rect(Rect2(anchor + Vector2(0, size.y / 2), size / 2), c);
 							}
-							if (mask & TileSet::BIND_BOTTOMRIGHT) {
+							if (mask & TileSet::BIND_IGNORE_BOTTOMRIGHT) {
+								workspace->draw_rect(Rect2(anchor + size / 2, size / 4), ci);
+								workspace->draw_rect(Rect2(anchor + size * 3 / 4, size / 4), ci);
+							} else if (mask & TileSet::BIND_BOTTOMRIGHT) {
 								workspace->draw_rect(Rect2(anchor + size / 2, size / 2), c);
 							}
 						} else {
-							if (mask & TileSet::BIND_TOPLEFT) {
+							if (mask & TileSet::BIND_IGNORE_TOPLEFT) {
+								workspace->draw_rect(Rect2(anchor, size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + size / 6, size / 6), ci);
+							} else if (mask & TileSet::BIND_TOPLEFT) {
 								workspace->draw_rect(Rect2(anchor, size / 3), c);
 							}
-							if (mask & TileSet::BIND_TOP) {
+							if (mask & TileSet::BIND_IGNORE_TOP) {
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 3, 0), size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 2, size.y / 6), size / 6), ci);
+							} else if (mask & TileSet::BIND_TOP) {
 								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 3, 0), size / 3), c);
 							}
-							if (mask & TileSet::BIND_TOPRIGHT) {
+							if (mask & TileSet::BIND_IGNORE_TOPRIGHT) {
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x * 4 / 6, 0), size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x * 5 / 6, size.y / 6), size / 6), ci);
+							} else if (mask & TileSet::BIND_TOPRIGHT) {
 								workspace->draw_rect(Rect2(anchor + Vector2((size.x / 3) * 2, 0), size / 3), c);
 							}
-							if (mask & TileSet::BIND_LEFT) {
+							if (mask & TileSet::BIND_IGNORE_LEFT) {
+								workspace->draw_rect(Rect2(anchor + Vector2(0, size.y / 3), size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 6, size.y / 2), size / 6), ci);
+							} else if (mask & TileSet::BIND_LEFT) {
 								workspace->draw_rect(Rect2(anchor + Vector2(0, size.y / 3), size / 3), c);
 							}
-							if (mask & TileSet::BIND_CENTER) {
+							if (mask & TileSet::BIND_IGNORE_CENTER) {
+								workspace->draw_rect(Rect2(anchor + size / 3, size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + size / 2, size / 6), ci);
+							} else if (mask & TileSet::BIND_CENTER) {
 								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 3, size.y / 3), size / 3), c);
 							}
-							if (mask & TileSet::BIND_RIGHT) {
+							if (mask & TileSet::BIND_IGNORE_RIGHT) {
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x * 4 / 6, size.y / 3), size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x * 5 / 6, size.y / 2), size / 6), ci);
+							} else if (mask & TileSet::BIND_RIGHT) {
 								workspace->draw_rect(Rect2(anchor + Vector2((size.x / 3) * 2, size.y / 3), size / 3), c);
 							}
-							if (mask & TileSet::BIND_BOTTOMLEFT) {
+							if (mask & TileSet::BIND_IGNORE_BOTTOMLEFT) {
+								workspace->draw_rect(Rect2(anchor + Vector2(0, size.y * 4 / 6), size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 6, size.y * 5 / 6), size / 6), ci);
+							} else if (mask & TileSet::BIND_BOTTOMLEFT) {
 								workspace->draw_rect(Rect2(anchor + Vector2(0, (size.y / 3) * 2), size / 3), c);
 							}
-							if (mask & TileSet::BIND_BOTTOM) {
+							if (mask & TileSet::BIND_IGNORE_BOTTOM) {
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 3, size.y * 4 / 6), size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 2, size.y * 5 / 6), size / 6), ci);
+							} else if (mask & TileSet::BIND_BOTTOM) {
 								workspace->draw_rect(Rect2(anchor + Vector2(size.x / 3, (size.y / 3) * 2), size / 3), c);
 							}
-							if (mask & TileSet::BIND_BOTTOMRIGHT) {
+							if (mask & TileSet::BIND_IGNORE_BOTTOMRIGHT) {
+								workspace->draw_rect(Rect2(anchor + size * 4 / 6, size / 6), ci);
+								workspace->draw_rect(Rect2(anchor + size * 5 / 6, size / 6), ci);
+							} else if (mask & TileSet::BIND_BOTTOMRIGHT) {
 								workspace->draw_rect(Rect2(anchor + (size / 3) * 2, size / 3), c);
 							}
 						}
@@ -882,10 +923,10 @@ void TileSetEditor::_on_workspace_draw() {
 			} break;
 			case EDITMODE_PRIORITY: {
 				spin_priority->set_value(tileset->autotile_get_subtile_priority(get_current_tile(), edited_shape_coord));
-				uint16_t mask = tileset->autotile_get_bitmask(get_current_tile(), edited_shape_coord);
+				uint32_t mask = tileset->autotile_get_bitmask(get_current_tile(), edited_shape_coord);
 				Vector<Vector2> queue_others;
 				int total = 0;
-				for (Map<Vector2, uint16_t>::Element *E = tileset->autotile_get_bitmask_map(get_current_tile()).front(); E; E = E->next()) {
+				for (Map<Vector2, uint32_t>::Element *E = tileset->autotile_get_bitmask_map(get_current_tile()).front(); E; E = E->next()) {
 					if (E->value() == mask) {
 						total += tileset->autotile_get_subtile_priority(get_current_tile(), E->key());
 						if (E->key() != edited_shape_coord) {
@@ -900,7 +941,8 @@ void TileSetEditor::_on_workspace_draw() {
 				spin_z_index->set_value(tileset->autotile_get_z_index(get_current_tile(), edited_shape_coord));
 				draw_highlight_subtile(edited_shape_coord);
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -996,25 +1038,26 @@ void TileSetEditor::_on_workspace_overlay_draw() {
 		tileset->get_tile_list(tiles);
 		for (List<int>::Element *E = tiles->front(); E; E = E->next()) {
 			int t_id = E->get();
-			if (tileset->tile_get_texture(t_id)->get_rid() == current_texture_rid) {
-				Rect2i region = tileset->tile_get_region(t_id);
-				region.position += WORKSPACE_MARGIN;
-				region.position *= workspace->get_scale().x;
-				Color c;
-				if (tileset->tile_get_tile_mode(t_id) == TileSet::SINGLE_TILE)
-					c = COLOR_SINGLE;
-				else if (tileset->tile_get_tile_mode(t_id) == TileSet::AUTO_TILE)
-					c = COLOR_AUTOTILE;
-				else if (tileset->tile_get_tile_mode(t_id) == TileSet::ATLAS_TILE)
-					c = COLOR_ATLAS;
-				String tile_id_name = String::num(t_id, 0) + ": " + tileset->tile_get_name(t_id);
-				Ref<Font> font = get_font("font", "Label");
-				region.set_size(font->get_string_size(tile_id_name));
-				workspace_overlay->draw_rect(region, c);
-				region.position.y += region.size.y - 2;
-				c = Color(0.1, 0.1, 0.1);
-				workspace_overlay->draw_string(font, region.position, tile_id_name, c);
-			}
+			if (tileset->tile_get_texture(t_id)->get_rid() != current_texture_rid)
+				continue;
+
+			Rect2 region = tileset->tile_get_region(t_id);
+			region.position += WORKSPACE_MARGIN;
+			region.position *= workspace->get_scale().x;
+			Color c;
+			if (tileset->tile_get_tile_mode(t_id) == TileSet::SINGLE_TILE)
+				c = COLOR_SINGLE;
+			else if (tileset->tile_get_tile_mode(t_id) == TileSet::AUTO_TILE)
+				c = COLOR_AUTOTILE;
+			else if (tileset->tile_get_tile_mode(t_id) == TileSet::ATLAS_TILE)
+				c = COLOR_ATLAS;
+			String tile_id_name = String::num(t_id, 0) + ": " + tileset->tile_get_name(t_id);
+			Ref<Font> font = get_font("font", "Label");
+			region.set_size(font->get_string_size(tile_id_name));
+			workspace_overlay->draw_rect(region, c);
+			region.position.y += region.size.y - 2;
+			c = Color(0.1, 0.1, 0.1);
+			workspace_overlay->draw_string(font, region.position, tile_id_name, c);
 		}
 	}
 
@@ -1037,6 +1080,7 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 
 	static bool dragging;
 	static bool erasing;
+	static bool alternative;
 	draw_edited_region = false;
 
 	Rect2 current_tile_region = Rect2();
@@ -1220,10 +1264,11 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 							if ((mb->get_button_index() == BUTTON_RIGHT || mb->get_button_index() == BUTTON_LEFT) && current_tile_region.has_point(mb->get_position())) {
 								dragging = true;
 								erasing = (mb->get_button_index() == BUTTON_RIGHT);
+								alternative = Input::get_singleton()->is_key_pressed(KEY_SHIFT);
 								Vector2 coord((int)((mb->get_position().x - current_tile_region.position.x) / (spacing + size.x)), (int)((mb->get_position().y - current_tile_region.position.y) / (spacing + size.y)));
 								Vector2 pos(coord.x * (spacing + size.x), coord.y * (spacing + size.y));
 								pos = mb->get_position() - (pos + current_tile_region.position);
-								uint16_t bit = 0;
+								uint32_t bit = 0;
 								if (tileset->autotile_get_bitmask_mode(get_current_tile()) == TileSet::BITMASK_2X2) {
 									if (pos.x < size.x / 2) {
 										if (pos.y < size.y / 2) {
@@ -1266,13 +1311,19 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 									}
 								}
 
-								uint16_t old_mask = tileset->autotile_get_bitmask(get_current_tile(), coord);
-								uint16_t new_mask = old_mask;
-								if (erasing) {
+								uint32_t old_mask = tileset->autotile_get_bitmask(get_current_tile(), coord);
+								uint32_t new_mask = old_mask;
+								if (alternative) {
 									new_mask &= ~bit;
+									new_mask |= (bit << 16);
+								} else if (erasing) {
+									new_mask &= ~bit;
+									new_mask &= ~(bit << 16);
 								} else {
 									new_mask |= bit;
+									new_mask &= ~(bit << 16);
 								}
+
 								if (old_mask != new_mask) {
 									undo_redo->create_action(TTR("Edit Tile Bitmask"));
 									undo_redo->add_do_method(tileset.ptr(), "autotile_set_bitmask", get_current_tile(), coord, new_mask);
@@ -1286,6 +1337,7 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 							if ((erasing && mb->get_button_index() == BUTTON_RIGHT) || (!erasing && mb->get_button_index() == BUTTON_LEFT)) {
 								dragging = false;
 								erasing = false;
+								alternative = false;
 							}
 						}
 					}
@@ -1294,7 +1346,7 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 							Vector2 coord((int)((mm->get_position().x - current_tile_region.position.x) / (spacing + size.x)), (int)((mm->get_position().y - current_tile_region.position.y) / (spacing + size.y)));
 							Vector2 pos(coord.x * (spacing + size.x), coord.y * (spacing + size.y));
 							pos = mm->get_position() - (pos + current_tile_region.position);
-							uint16_t bit = 0;
+							uint32_t bit = 0;
 							if (tileset->autotile_get_bitmask_mode(get_current_tile()) == TileSet::BITMASK_2X2) {
 								if (pos.x < size.x / 2) {
 									if (pos.y < size.y / 2) {
@@ -1337,12 +1389,17 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 								}
 							}
 
-							uint16_t old_mask = tileset->autotile_get_bitmask(get_current_tile(), coord);
-							uint16_t new_mask = old_mask;
-							if (erasing) {
+							uint32_t old_mask = tileset->autotile_get_bitmask(get_current_tile(), coord);
+							uint32_t new_mask = old_mask;
+							if (alternative) {
+								new_mask &= ~bit;
+								new_mask |= (bit << 16);
+							} else if (erasing) {
 								new_mask &= ~bit;
+								new_mask &= ~(bit << 16);
 							} else {
 								new_mask |= bit;
+								new_mask &= ~(bit << 16);
 							}
 							if (old_mask != new_mask) {
 								undo_redo->create_action(TTR("Edit Tile Bitmask"));
@@ -1504,19 +1561,49 @@ void TileSetEditor::_on_workspace_input(const Ref<InputEvent> &p_ie) {
 							if (mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
 								_set_edited_collision_shape(Ref<ConvexPolygonShape2D>());
 								current_shape.resize(0);
-								current_shape.push_back(snap_point(shape_anchor));
-								current_shape.push_back(snap_point(shape_anchor + Vector2(current_tile_region.size.x, 0)));
-								current_shape.push_back(snap_point(shape_anchor + current_tile_region.size));
-								current_shape.push_back(snap_point(shape_anchor + Vector2(0, current_tile_region.size.y)));
-								close_shape(shape_anchor);
+								Vector2 pos = mb->get_position();
+								pos = snap_point(pos);
+								current_shape.push_back(pos);
+								current_shape.push_back(pos);
+								current_shape.push_back(pos);
+								current_shape.push_back(pos);
+								creating_shape = true;
 								workspace->update();
+								return;
 							} else if (mb->is_pressed() && mb->get_button_index() == BUTTON_RIGHT) {
+								if (creating_shape) {
+									creating_shape = false;
+									_select_edited_shape_coord();
+									workspace->update();
+								}
+							} else if (!mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
+								if (creating_shape) {
+									if ((current_shape[0] - current_shape[1]).length_squared() <= grab_threshold) {
+										current_shape.set(0, snap_point(shape_anchor));
+										current_shape.set(1, snap_point(shape_anchor + Vector2(current_tile_region.size.x, 0)));
+										current_shape.set(2, snap_point(shape_anchor + current_tile_region.size));
+										current_shape.set(3, snap_point(shape_anchor + Vector2(0, current_tile_region.size.y)));
+									}
+									close_shape(shape_anchor);
+									workspace->update();
+									return;
+								}
+							}
+						} else if (mm.is_valid()) {
+							if (creating_shape) {
+								Vector2 pos = mm->get_position();
+								pos = snap_point(pos);
+								Vector2 p = current_shape[2];
+								current_shape.set(3, snap_point(Vector2(pos.x, p.y)));
+								current_shape.set(0, snap_point(pos));
+								current_shape.set(1, snap_point(Vector2(p.x, pos.y)));
 								workspace->update();
 							}
 						}
 					}
 				} break;
-				default: {}
+				default: {
+				}
 			}
 		}
 	}
@@ -1529,10 +1616,10 @@ void TileSetEditor::_on_tool_clicked(int p_tool) {
 		undo_redo->create_action(TTR("Paste Tile Bitmask"));
 		undo_redo->add_do_method(tileset.ptr(), "autotile_clear_bitmask_map", get_current_tile());
 		undo_redo->add_undo_method(tileset.ptr(), "autotile_clear_bitmask_map", get_current_tile());
-		for (Map<Vector2, uint16_t>::Element *E = bitmask_map_copy.front(); E; E = E->next()) {
+		for (Map<Vector2, uint32_t>::Element *E = bitmask_map_copy.front(); E; E = E->next()) {
 			undo_redo->add_do_method(tileset.ptr(), "autotile_set_bitmask", get_current_tile(), E->key(), E->value());
 		}
-		for (Map<Vector2, uint16_t>::Element *E = tileset->autotile_get_bitmask_map(get_current_tile()).front(); E; E = E->next()) {
+		for (Map<Vector2, uint32_t>::Element *E = tileset->autotile_get_bitmask_map(get_current_tile()).front(); E; E = E->next()) {
 			undo_redo->add_undo_method(tileset.ptr(), "autotile_set_bitmask", get_current_tile(), E->key(), E->value());
 		}
 		undo_redo->add_do_method(workspace, "update");
@@ -1541,7 +1628,7 @@ void TileSetEditor::_on_tool_clicked(int p_tool) {
 	} else if (p_tool == BITMASK_CLEAR) {
 		undo_redo->create_action(TTR("Clear Tile Bitmask"));
 		undo_redo->add_do_method(tileset.ptr(), "autotile_clear_bitmask_map", get_current_tile());
-		for (Map<Vector2, uint16_t>::Element *E = tileset->autotile_get_bitmask_map(get_current_tile()).front(); E; E = E->next()) {
+		for (Map<Vector2, uint32_t>::Element *E = tileset->autotile_get_bitmask_map(get_current_tile()).front(); E; E = E->next()) {
 			undo_redo->add_undo_method(tileset.ptr(), "autotile_set_bitmask", get_current_tile(), E->key(), E->value());
 		}
 		undo_redo->add_do_method(workspace, "update");
@@ -1670,7 +1757,8 @@ void TileSetEditor::_on_tool_clicked(int p_tool) {
 						undo_redo->commit_action();
 					}
 				} break;
-				default: {}
+				default: {
+				}
 			}
 		}
 	} else if (p_tool == TOOL_SELECT) {
@@ -1840,7 +1928,8 @@ void TileSetEditor::_select_next_tile() {
 				edited_shape_coord = Vector2();
 				_select_edited_shape_coord();
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 }
@@ -1877,7 +1966,8 @@ void TileSetEditor::_select_previous_tile() {
 				edited_shape_coord = cell_count;
 				_select_edited_shape_coord();
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 }
@@ -2139,8 +2229,8 @@ void TileSetEditor::_undo_tile_removal(int p_id) {
 		for (Map<Vector2, Ref<NavigationPolygon> >::Element *E = navigation_map.front(); E; E = E->next()) {
 			undo_redo->add_undo_method(tileset.ptr(), "autotile_set_navigation_polygon", p_id, E->value(), E->key());
 		}
-		Map<Vector2, uint16_t> bitmask_map = tileset->autotile_get_bitmask_map(p_id);
-		for (Map<Vector2, uint16_t>::Element *E = bitmask_map.front(); E; E = E->next()) {
+		Map<Vector2, uint32_t> bitmask_map = tileset->autotile_get_bitmask_map(p_id);
+		for (Map<Vector2, uint32_t>::Element *E = bitmask_map.front(); E; E = E->next()) {
 			undo_redo->add_undo_method(tileset.ptr(), "autotile_set_bitmask", p_id, E->key(), E->value());
 		}
 		Map<Vector2, int> priority_map = tileset->autotile_get_priority_map(p_id);
@@ -2417,9 +2507,11 @@ void TileSetEditor::draw_polygon_shapes() {
 							colors.push_back(c_bg);
 						}
 					}
-					if (polygon.size() > 2) {
-						workspace->draw_polygon(polygon, colors);
-					}
+
+					if (polygon.size() < 3)
+						continue;
+
+					workspace->draw_polygon(polygon, colors);
 
 					if (coord == edited_shape_coord || tileset->tile_get_tile_mode(get_current_tile()) == TileSet::SINGLE_TILE) {
 						if (!creating_shape) {
@@ -2612,7 +2704,8 @@ void TileSetEditor::draw_polygon_shapes() {
 				}
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (creating_shape) {
diff --git a/editor/plugins/tile_set_editor_plugin.h b/editor/plugins/tile_set_editor_plugin.h
index 2827964592..1176e1bb92 100644
--- a/editor/plugins/tile_set_editor_plugin.h
+++ b/editor/plugins/tile_set_editor_plugin.h
@@ -126,7 +126,7 @@ class TileSetEditor : public HSplitContainer {
 	Vector2 edited_shape_coord;
 	PoolVector2Array current_shape;
 	Map<Vector2i, SubtileData> current_tile_data;
-	Map<Vector2, uint16_t> bitmask_map_copy;
+	Map<Vector2, uint32_t> bitmask_map_copy;
 
 	Vector2 snap_step;
 	Vector2 snap_offset;
diff --git a/editor/plugins/visual_shader_editor_plugin.cpp b/editor/plugins/visual_shader_editor_plugin.cpp
index 7bd26de092..f3eb5d1483 100644
--- a/editor/plugins/visual_shader_editor_plugin.cpp
+++ b/editor/plugins/visual_shader_editor_plugin.cpp
@@ -39,6 +39,7 @@
 #include "scene/gui/menu_button.h"
 #include "scene/gui/panel.h"
 #include "scene/main/viewport.h"
+#include "scene/resources/visual_shader_nodes.h"
 
 Control *VisualShaderNodePlugin::create_editor(const Ref<VisualShaderNode> &p_node) {
 
@@ -57,7 +58,15 @@ void VisualShaderNodePlugin::_bind_methods() {
 
 void VisualShaderEditor::edit(VisualShader *p_visual_shader) {
 
+	bool changed = false;
 	if (p_visual_shader) {
+		if (visual_shader.is_null()) {
+			changed = true;
+		} else {
+			if (visual_shader.ptr() != p_visual_shader) {
+				changed = true;
+			}
+		}
 		visual_shader = Ref<VisualShader>(p_visual_shader);
 	} else {
 		visual_shader.unref();
@@ -66,6 +75,9 @@ void VisualShaderEditor::edit(VisualShader *p_visual_shader) {
 	if (visual_shader.is_null()) {
 		hide();
 	} else {
+		if (changed) { // to avoid tree collapse
+			_update_options_menu();
+		}
 		_update_graph();
 	}
 }
@@ -107,16 +119,187 @@ void VisualShaderEditor::remove_custom_type(const Ref<Script> &p_script) {
 	_update_options_menu();
 }
 
+bool VisualShaderEditor::_is_available(int p_mode) {
+
+	int current_mode = edit_type->get_selected();
+
+	if (p_mode != -1) {
+
+		switch (current_mode) {
+			case VisualShader::TYPE_VERTEX:
+				current_mode = 1;
+				break;
+			case VisualShader::TYPE_FRAGMENT:
+				current_mode = 2;
+				break;
+			case VisualShader::TYPE_LIGHT:
+				current_mode = 4;
+				break;
+			default:
+				break;
+		}
+
+		int temp_mode = 0;
+
+		if (p_mode & VisualShader::TYPE_FRAGMENT) {
+			temp_mode |= 2;
+		}
+
+		if (p_mode & VisualShader::TYPE_LIGHT) {
+			temp_mode |= 4;
+		}
+
+		if (temp_mode == 0) {
+			temp_mode |= 1;
+		}
+
+		p_mode = temp_mode;
+	}
+
+	if (p_mode != -1 && ((p_mode & current_mode) == 0)) {
+		return false;
+	}
+	return true;
+}
+
 void VisualShaderEditor::_update_options_menu() {
 
+	node_desc->set_text("");
+	members_dialog->get_ok()->set_disabled(true);
+
 	String prev_category;
-	add_node->get_popup()->clear();
-	for (int i = 0; i < add_options.size(); i++) {
-		if (prev_category != add_options[i].category) {
-			add_node->get_popup()->add_separator(add_options[i].category);
+	String prev_sub_category;
+
+	members->clear();
+	TreeItem *root = members->create_item();
+	TreeItem *category = NULL;
+	TreeItem *sub_category = NULL;
+
+	String filter = node_filter->get_text().strip_edges();
+	bool use_filter = !filter.empty();
+
+	Vector<String> categories;
+	Vector<String> sub_categories;
+
+	int item_count = 0;
+	int item_count2 = 0;
+	bool is_first_item = true;
+
+	int current_func = -1;
+
+	if (!visual_shader.is_null()) {
+		current_func = visual_shader->get_mode();
+	}
+
+	for (int i = 0; i < add_options.size() + 1; i++) {
+
+		if (i == add_options.size()) {
+			if (sub_category != NULL && item_count2 == 0) {
+				memdelete(sub_category);
+				--item_count;
+			}
+			if (category != NULL && item_count == 0) {
+				memdelete(category);
+			}
+			break;
+		}
+
+		if (!use_filter || add_options[i].name.findn(filter) != -1) {
+
+			if (prev_category != add_options[i].category) {
+				if (category != NULL && item_count == 0) {
+					memdelete(category);
+				}
+
+				item_count = 0;
+				prev_sub_category = "";
+				category = members->create_item(root);
+				category->set_text(0, add_options[i].category);
+				category->set_selectable(0, false);
+				if (!use_filter)
+					category->set_collapsed(true);
+			}
+
+			if (add_options[i].sub_category != "") {
+				if (prev_sub_category != add_options[i].sub_category) {
+					if (category != NULL) {
+						if (sub_category != NULL && item_count2 == 0) {
+							memdelete(sub_category);
+							--item_count;
+						}
+						++item_count;
+						item_count2 = 0;
+						sub_category = members->create_item(category);
+						sub_category->set_text(0, add_options[i].sub_category);
+						sub_category->set_selectable(0, false);
+						if (!use_filter)
+							sub_category->set_collapsed(true);
+					}
+				}
+				if (sub_category != NULL) {
+					if ((add_options[i].func == current_func || add_options[i].func == -1) && _is_available(add_options[i].mode)) {
+						++item_count2;
+						TreeItem *item = members->create_item(sub_category);
+						item->set_text(0, add_options[i].name);
+						if (is_first_item) {
+							item->select(0);
+							is_first_item = false;
+						}
+						switch (add_options[i].return_type) {
+							case VisualShaderNode::PORT_TYPE_SCALAR:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("float", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_VECTOR:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("Vector3", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_BOOLEAN:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("bool", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_TRANSFORM:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("Transform", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_COLOR:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("Color", "EditorIcons"));
+								break;
+							default:
+								break;
+						}
+						item->set_meta("id", i);
+					}
+				}
+			} else {
+				if (category != NULL) {
+					if ((add_options[i].func == current_func || add_options[i].func == -1) && _is_available(add_options[i].mode)) {
+						++item_count;
+						TreeItem *item = members->create_item(category);
+						item->set_text(0, add_options[i].name);
+						switch (add_options[i].return_type) {
+							case VisualShaderNode::PORT_TYPE_SCALAR:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("float", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_VECTOR:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("Vector3", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_BOOLEAN:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("bool", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_TRANSFORM:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("Transform", "EditorIcons"));
+								break;
+							case VisualShaderNode::PORT_TYPE_COLOR:
+								item->set_icon(0, EditorNode::get_singleton()->get_gui_base()->get_icon("Color", "EditorIcons"));
+								break;
+							default:
+								break;
+						}
+						item->set_meta("id", i);
+					}
+				}
+			}
+
+			prev_sub_category = add_options[i].sub_category;
+			prev_category = add_options[i].category;
 		}
-		add_node->get_popup()->add_item(add_options[i].name, i);
-		prev_category = add_options[i].category;
 	}
 }
 
@@ -144,6 +327,21 @@ static Ref<StyleBoxEmpty> make_empty_stylebox(float p_margin_left = -1, float p_
 	return style;
 }
 
+void VisualShaderEditor::_update_created_node(GraphNode *node) {
+
+	if (EditorSettings::get_singleton()->get("interface/theme/use_graph_node_headers")) {
+		Ref<StyleBoxFlat> sb = node->get_stylebox("frame", "GraphNode");
+		Color c = sb->get_border_color();
+		Color mono_color = ((c.r + c.g + c.b) / 3) < 0.7 ? Color(1.0, 1.0, 1.0) : Color(0.0, 0.0, 0.0);
+		mono_color.a = 0.85;
+		c = mono_color;
+
+		node->add_color_override("title_color", c);
+		c.a = 0.7;
+		node->add_color_override("close_color", c);
+	}
+}
+
 void VisualShaderEditor::_update_graph() {
 
 	if (updating)
@@ -165,10 +363,11 @@ void VisualShaderEditor::_update_graph() {
 		}
 	}
 
-	static const Color type_color[3] = {
-		Color::html("#61daf4"),
-		Color::html("#d67dee"),
-		Color::html("#f6a86e")
+	static const Color type_color[4] = {
+		Color::html("#61daf4"), // scalar
+		Color::html("#d67dee"), // vector
+		Color::html("#8da6f0"), // boolean
+		Color::html("#f6a86e") // transform
 	};
 
 	List<VisualShader::Connection> connections;
@@ -184,7 +383,6 @@ void VisualShaderEditor::_update_graph() {
 		Ref<VisualShaderNode> vsnode = visual_shader->get_node(type, nodes[n_i]);
 
 		GraphNode *node = memnew(GraphNode);
-		graph->add_child(node);
 
 		/*if (!vsnode->is_connected("changed", this, "_node_changed")) {
 			vsnode->connect("changed", this, "_node_changed", varray(vsnode->get_instance_id()), CONNECT_DEFERRED);
@@ -207,6 +405,9 @@ void VisualShaderEditor::_update_graph() {
 
 		Ref<VisualShaderNodeUniform> uniform = vsnode;
 		if (uniform.is_valid()) {
+			graph->add_child(node);
+			_update_created_node(node);
+
 			LineEdit *uniform_name = memnew(LineEdit);
 			uniform_name->set_text(uniform->get_uniform_name());
 			node->add_child(uniform_name);
@@ -293,7 +494,8 @@ void VisualShaderEditor::_update_graph() {
 						Vector3 v = default_value;
 						button->set_text(String::num(v.x, 3) + "," + String::num(v.y, 3) + "," + String::num(v.z, 3));
 					} break;
-					default: {}
+					default: {
+					}
 				}
 			}
 
@@ -323,7 +525,7 @@ void VisualShaderEditor::_update_graph() {
 				}
 			}
 
-			if (valid_right && edit_type->get_selected() == VisualShader::TYPE_FRAGMENT) {
+			if (valid_right && edit_type->get_selected() == VisualShader::TYPE_FRAGMENT && port_right != VisualShaderNode::PORT_TYPE_TRANSFORM) {
 				TextureButton *preview = memnew(TextureButton);
 				preview->set_toggle_mode(true);
 				preview->set_normal_texture(get_icon("GuiVisibilityHidden", "EditorIcons"));
@@ -341,21 +543,9 @@ void VisualShaderEditor::_update_graph() {
 			node->add_child(hb);
 
 			node->set_slot(i + port_offset, valid_left, port_left, type_color[port_left], valid_right, port_right, type_color[port_right]);
-
-			if (EditorSettings::get_singleton()->get("interface/theme/use_graph_node_headers")) {
-				Ref<StyleBoxFlat> sb = node->get_stylebox("frame", "GraphNode");
-				Color c = sb->get_border_color(MARGIN_TOP);
-				Color mono_color = ((c.r + c.g + c.b) / 3) < 0.7 ? Color(1.0, 1.0, 1.0) : Color(0.0, 0.0, 0.0);
-				mono_color.a = 0.85;
-				c = mono_color;
-
-				node->add_color_override("title_color", c);
-				c.a = 0.7;
-				node->add_color_override("close_color", c);
-			}
 		}
 
-		if (vsnode->get_output_port_for_preview() >= 0) {
+		if (vsnode->get_output_port_for_preview() >= 0 && vsnode->get_output_port_type(vsnode->get_output_port_for_preview()) != VisualShaderNode::PORT_TYPE_TRANSFORM) {
 			VisualShaderNodePortPreview *port_preview = memnew(VisualShaderNodePortPreview);
 			port_preview->setup(visual_shader, type, nodes[n_i], vsnode->get_output_port_for_preview());
 			port_preview->set_h_size_flags(SIZE_SHRINK_CENTER);
@@ -369,6 +559,11 @@ void VisualShaderEditor::_update_graph() {
 			error_label->set_text(error);
 			node->add_child(error_label);
 		}
+
+		if (!uniform.is_valid()) {
+			graph->add_child(node);
+			_update_created_node(node);
+		}
 	}
 
 	for (List<VisualShader::Connection>::Element *E = connections.front(); E; E = E->next()) {
@@ -462,7 +657,7 @@ void VisualShaderEditor::_edit_port_default_input(Object *p_button, int p_node,
 	editing_port = p_port;
 }
 
-void VisualShaderEditor::_add_node(int p_idx) {
+void VisualShaderEditor::_add_node(int p_idx, int p_op_idx) {
 
 	ERR_FAIL_INDEX(p_idx, add_options.size());
 
@@ -471,6 +666,70 @@ void VisualShaderEditor::_add_node(int p_idx) {
 	if (add_options[p_idx].type != String()) {
 		VisualShaderNode *vsn = Object::cast_to<VisualShaderNode>(ClassDB::instance(add_options[p_idx].type));
 		ERR_FAIL_COND(!vsn);
+
+		if (p_op_idx != -1) {
+
+			VisualShaderNodeInput *input = Object::cast_to<VisualShaderNodeInput>(vsn);
+
+			if (input) {
+				input->set_input_name(add_options[p_idx].sub_func_str);
+			}
+
+			VisualShaderNodeColorOp *colorOp = Object::cast_to<VisualShaderNodeColorOp>(vsn);
+
+			if (colorOp) {
+				colorOp->set_operator((VisualShaderNodeColorOp::Operator)p_op_idx);
+			}
+
+			VisualShaderNodeColorFunc *colorFunc = Object::cast_to<VisualShaderNodeColorFunc>(vsn);
+
+			if (colorFunc) {
+				colorFunc->set_function((VisualShaderNodeColorFunc::Function)p_op_idx);
+			}
+
+			VisualShaderNodeScalarOp *scalarOp = Object::cast_to<VisualShaderNodeScalarOp>(vsn);
+
+			if (scalarOp) {
+				scalarOp->set_operator((VisualShaderNodeScalarOp::Operator)p_op_idx);
+			}
+
+			VisualShaderNodeScalarFunc *scalarFunc = Object::cast_to<VisualShaderNodeScalarFunc>(vsn);
+
+			if (scalarFunc) {
+				scalarFunc->set_function((VisualShaderNodeScalarFunc::Function)p_op_idx);
+			}
+
+			VisualShaderNodeVectorOp *vecOp = Object::cast_to<VisualShaderNodeVectorOp>(vsn);
+
+			if (vecOp) {
+				vecOp->set_operator((VisualShaderNodeVectorOp::Operator)p_op_idx);
+			}
+
+			VisualShaderNodeVectorFunc *vecFunc = Object::cast_to<VisualShaderNodeVectorFunc>(vsn);
+
+			if (vecFunc) {
+				vecFunc->set_function((VisualShaderNodeVectorFunc::Function)p_op_idx);
+			}
+
+			VisualShaderNodeTransformFunc *matFunc = Object::cast_to<VisualShaderNodeTransformFunc>(vsn);
+
+			if (matFunc) {
+				matFunc->set_function((VisualShaderNodeTransformFunc::Function)p_op_idx);
+			}
+
+			VisualShaderNodeScalarDerivativeFunc *sderFunc = Object::cast_to<VisualShaderNodeScalarDerivativeFunc>(vsn);
+
+			if (sderFunc) {
+				sderFunc->set_function((VisualShaderNodeScalarDerivativeFunc::Function)p_op_idx);
+			}
+
+			VisualShaderNodeVectorDerivativeFunc *vderFunc = Object::cast_to<VisualShaderNodeVectorDerivativeFunc>(vsn);
+
+			if (vderFunc) {
+				vderFunc->set_function((VisualShaderNodeVectorDerivativeFunc::Function)p_op_idx);
+			}
+		}
+
 		vsnode = Ref<VisualShaderNode>(vsn);
 	} else {
 		ERR_FAIL_COND(add_options[p_idx].script.is_null());
@@ -481,7 +740,15 @@ void VisualShaderEditor::_add_node(int p_idx) {
 		vsnode->set_script(add_options[p_idx].script.get_ref_ptr());
 	}
 
-	Point2 position = (graph->get_scroll_ofs() + graph->get_size() * 0.5) / EDSCALE;
+	Point2 position = graph->get_scroll_ofs();
+
+	if (saved_node_pos_dirty) {
+		position += saved_node_pos;
+	} else {
+		position += graph->get_size() * 0.5;
+		position /= EDSCALE;
+	}
+	saved_node_pos_dirty = false;
 
 	VisualShader::Type type = VisualShader::Type(edit_type->get_selected());
 
@@ -517,7 +784,6 @@ void VisualShaderEditor::_connection_request(const String &p_from, int p_from_in
 	int to = p_to.to_int();
 
 	if (!visual_shader->can_connect_nodes(type, from, p_from_index, to, p_to_index)) {
-		EditorNode::get_singleton()->show_warning(TTR("Unable to connect, port may be in use or connection may be invalid."));
 		return;
 	}
 
@@ -600,29 +866,98 @@ void VisualShaderEditor::_node_selected(Object *p_node) {
 	//EditorNode::get_singleton()->push_item(vsnode.ptr(), "", true);
 }
 
-void VisualShaderEditor::_input(const Ref<InputEvent> p_event) {
-	if (graph->has_focus()) {
-		Ref<InputEventMouseButton> mb = p_event;
+void VisualShaderEditor::_graph_gui_input(const Ref<InputEvent> p_event) {
 
-		if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == BUTTON_RIGHT) {
-			add_node->get_popup()->set_position(get_viewport()->get_mouse_position());
-			add_node->get_popup()->show_modal();
-		}
+	Ref<InputEventMouseButton> mb = p_event;
+
+	if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == BUTTON_RIGHT)
+		_show_members_dialog(true);
+}
+
+void VisualShaderEditor::_show_members_dialog(bool at_mouse_pos) {
+
+	members_dialog->popup();
+
+	if (at_mouse_pos) {
+		saved_node_pos_dirty = true;
+		saved_node_pos = graph->get_local_mouse_position();
+
+		Point2 gpos = Input::get_singleton()->get_mouse_position();
+		members_dialog->popup();
+		members_dialog->set_position(gpos);
+	} else {
+		saved_node_pos_dirty = false;
+		members_dialog->set_position(graph->get_global_position() + Point2(5 * EDSCALE, 65 * EDSCALE));
+	}
+
+	// keep dialog within window bounds
+	Size2 window_size = OS::get_singleton()->get_window_size();
+	Rect2 dialog_rect = members_dialog->get_global_rect();
+	if (dialog_rect.position.y + dialog_rect.size.y > window_size.y) {
+		int difference = dialog_rect.position.y + dialog_rect.size.y - window_size.y;
+		members_dialog->set_position(members_dialog->get_position() - Point2(0, difference));
+	}
+	if (dialog_rect.position.x + dialog_rect.size.x > window_size.x) {
+		int difference = dialog_rect.position.x + dialog_rect.size.x - window_size.x;
+		members_dialog->set_position(members_dialog->get_position() - Point2(difference, 0));
+	}
+
+	node_filter->call_deferred("grab_focus"); // still not visible
+	node_filter->select_all();
+}
+
+void VisualShaderEditor::_sbox_input(const Ref<InputEvent> &p_ie) {
+	Ref<InputEventKey> ie = p_ie;
+	if (ie.is_valid() && (ie->get_scancode() == KEY_UP ||
+								 ie->get_scancode() == KEY_DOWN ||
+								 ie->get_scancode() == KEY_ENTER ||
+								 ie->get_scancode() == KEY_KP_ENTER)) {
+
+		members->call("_gui_input", ie);
+		node_filter->accept_event();
 	}
 }
 
 void VisualShaderEditor::_notification(int p_what) {
+	if (p_what == NOTIFICATION_ENTER_TREE) {
+
+		node_filter->set_clear_button_enabled(true);
+
+		// collapse tree by default
+
+		TreeItem *category = members->get_root()->get_children();
+		while (category) {
+			category->set_collapsed(true);
+			TreeItem *sub_category = category->get_children();
+			while (sub_category) {
+				sub_category->set_collapsed(true);
+				sub_category = sub_category->get_next();
+			}
+			category = category->get_next();
+		}
+	}
+
+	if (p_what == NOTIFICATION_DRAG_BEGIN) {
+		Dictionary dd = get_viewport()->gui_get_drag_data();
+		if (members->is_visible_in_tree() && dd.has("id")) {
+			members->set_drop_mode_flags(Tree::DROP_MODE_ON_ITEM);
+		}
+	} else if (p_what == NOTIFICATION_DRAG_END) {
+		members->set_drop_mode_flags(0);
+	}
 
 	if (p_what == NOTIFICATION_ENTER_TREE || p_what == NOTIFICATION_THEME_CHANGED) {
 
 		error_panel->add_style_override("panel", get_stylebox("bg", "Tree"));
 		error_label->add_color_override("font_color", get_color("error_color", "Editor"));
 
+		node_filter->set_right_icon(Control::get_icon("Search", "EditorIcons"));
+
+		tools->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("Tools", "EditorIcons"));
+
 		if (p_what == NOTIFICATION_THEME_CHANGED && is_visible_in_tree())
 			_update_graph();
-	}
-
-	if (p_what == NOTIFICATION_PROCESS) {
+	} else if (p_what == NOTIFICATION_PROCESS) {
 	}
 }
 
@@ -718,7 +1053,60 @@ void VisualShaderEditor::_duplicate_nodes() {
 	}
 }
 
+void VisualShaderEditor::_on_nodes_delete() {
+
+	VisualShader::Type type = VisualShader::Type(edit_type->get_selected());
+	List<int> to_erase;
+
+	for (int i = 0; i < graph->get_child_count(); i++) {
+		GraphNode *gn = Object::cast_to<GraphNode>(graph->get_child(i));
+		if (gn) {
+			if (gn->is_selected() && gn->is_close_button_visible()) {
+				to_erase.push_back(gn->get_name().operator String().to_int());
+			}
+		}
+	}
+
+	if (to_erase.empty())
+		return;
+
+	undo_redo->create_action(TTR("Delete Nodes"));
+
+	for (List<int>::Element *F = to_erase.front(); F; F = F->next()) {
+		undo_redo->add_do_method(visual_shader.ptr(), "remove_node", type, F->get());
+		undo_redo->add_undo_method(visual_shader.ptr(), "add_node", type, visual_shader->get_node(type, F->get()), visual_shader->get_node_position(type, F->get()), F->get());
+	}
+
+	List<VisualShader::Connection> conns;
+	visual_shader->get_node_connections(type, &conns);
+
+	List<VisualShader::Connection> used_conns;
+	for (List<int>::Element *F = to_erase.front(); F; F = F->next()) {
+		for (List<VisualShader::Connection>::Element *E = conns.front(); E; E = E->next()) {
+			if (E->get().from_node == F->get() || E->get().to_node == F->get()) {
+
+				bool cancel = false;
+				for (List<VisualShader::Connection>::Element *R = used_conns.front(); R; R = R->next()) {
+					if (R->get().from_node == E->get().from_node && R->get().from_port == E->get().from_port && R->get().to_node == E->get().to_node && R->get().to_port == E->get().to_port) {
+						cancel = true; // to avoid ERR_ALREADY_EXISTS warning
+						break;
+					}
+				}
+				if (!cancel) {
+					undo_redo->add_undo_method(visual_shader.ptr(), "connect_nodes", type, E->get().from_node, E->get().from_port, E->get().to_node, E->get().to_port);
+					used_conns.push_back(E->get());
+				}
+			}
+		}
+	}
+
+	undo_redo->add_do_method(this, "_update_graph");
+	undo_redo->add_undo_method(this, "_update_graph");
+	undo_redo->commit_action();
+}
+
 void VisualShaderEditor::_mode_selected(int p_id) {
+	_update_options_menu();
 	_update_graph();
 }
 
@@ -756,9 +1144,131 @@ void VisualShaderEditor::_input_select_item(Ref<VisualShaderNodeInput> input, St
 	undo_redo->commit_action();
 }
 
-void VisualShaderEditor::_bind_methods() {
+void VisualShaderEditor::_member_filter_changed(const String &p_text) {
+	_update_options_menu();
+}
+
+void VisualShaderEditor::_member_selected() {
+	TreeItem *item = members->get_selected();
+
+	if (item != NULL && item->has_meta("id")) {
+		members_dialog->get_ok()->set_disabled(false);
+		node_desc->set_text(add_options[item->get_meta("id")].description);
+	} else {
+		members_dialog->get_ok()->set_disabled(true);
+		node_desc->set_text("");
+	}
+}
+
+void VisualShaderEditor::_member_unselected() {
+}
+
+void VisualShaderEditor::_member_create() {
+	TreeItem *item = members->get_selected();
+	if (item != NULL && item->has_meta("id")) {
+		int idx = members->get_selected()->get_meta("id");
+		_add_node(idx, add_options[idx].sub_func);
+		members_dialog->hide();
+	}
+}
 
+void VisualShaderEditor::_tools_menu_option(int p_idx) {
+
+	TreeItem *category = members->get_root()->get_children();
+
+	switch (p_idx) {
+		case EXPAND_ALL:
+
+			while (category) {
+				category->set_collapsed(false);
+				TreeItem *sub_category = category->get_children();
+				while (sub_category) {
+					sub_category->set_collapsed(false);
+					sub_category = sub_category->get_next();
+				}
+				category = category->get_next();
+			}
+
+			break;
+
+		case COLLAPSE_ALL:
+
+			while (category) {
+				category->set_collapsed(true);
+				TreeItem *sub_category = category->get_children();
+				while (sub_category) {
+					sub_category->set_collapsed(true);
+					sub_category = sub_category->get_next();
+				}
+				category = category->get_next();
+			}
+
+			break;
+		default:
+			break;
+	}
+}
+
+Variant VisualShaderEditor::get_drag_data_fw(const Point2 &p_point, Control *p_from) {
+
+	if (p_from == members) {
+		TreeItem *it = members->get_item_at_position(p_point);
+		if (!it)
+			return Variant();
+		if (!it->has_meta("id"))
+			return Variant();
+
+		int id = it->get_meta("id");
+		AddOption op = add_options[id];
+
+		Dictionary d;
+		d["id"] = id;
+		if (op.sub_func == -1) {
+			d["sub_func"] = op.sub_func_str;
+		} else {
+			d["sub_func"] = op.sub_func;
+		}
+
+		Label *label = memnew(Label);
+		label->set_text(it->get_text(0));
+		set_drag_preview(label);
+		return d;
+	}
+	return Variant();
+}
+
+bool VisualShaderEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
+
+	if (p_from == graph) {
+
+		Dictionary d = p_data;
+
+		if (d.has("id")) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+void VisualShaderEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
+
+	if (p_from == graph) {
+
+		Dictionary d = p_data;
+
+		if (d.has("id")) {
+			int idx = d["id"];
+			saved_node_pos = p_point;
+			saved_node_pos_dirty = true;
+			_add_node(idx, add_options[idx].sub_func);
+		}
+	}
+}
+
+void VisualShaderEditor::_bind_methods() {
 	ClassDB::bind_method("_update_graph", &VisualShaderEditor::_update_graph);
+	ClassDB::bind_method("_update_options_menu", &VisualShaderEditor::_update_options_menu);
 	ClassDB::bind_method("_add_node", &VisualShaderEditor::_add_node);
 	ClassDB::bind_method("_node_dragged", &VisualShaderEditor::_node_dragged);
 	ClassDB::bind_method("_connection_request", &VisualShaderEditor::_connection_request);
@@ -766,6 +1276,7 @@ void VisualShaderEditor::_bind_methods() {
 	ClassDB::bind_method("_node_selected", &VisualShaderEditor::_node_selected);
 	ClassDB::bind_method("_scroll_changed", &VisualShaderEditor::_scroll_changed);
 	ClassDB::bind_method("_delete_request", &VisualShaderEditor::_delete_request);
+	ClassDB::bind_method("_on_nodes_delete", &VisualShaderEditor::_on_nodes_delete);
 	ClassDB::bind_method("_node_changed", &VisualShaderEditor::_node_changed);
 	ClassDB::bind_method("_edit_port_default_input", &VisualShaderEditor::_edit_port_default_input);
 	ClassDB::bind_method("_port_edited", &VisualShaderEditor::_port_edited);
@@ -776,7 +1287,20 @@ void VisualShaderEditor::_bind_methods() {
 	ClassDB::bind_method("_mode_selected", &VisualShaderEditor::_mode_selected);
 	ClassDB::bind_method("_input_select_item", &VisualShaderEditor::_input_select_item);
 	ClassDB::bind_method("_preview_select_port", &VisualShaderEditor::_preview_select_port);
-	ClassDB::bind_method("_input", &VisualShaderEditor::_input);
+	ClassDB::bind_method("_graph_gui_input", &VisualShaderEditor::_graph_gui_input);
+
+	ClassDB::bind_method(D_METHOD("get_drag_data_fw"), &VisualShaderEditor::get_drag_data_fw);
+	ClassDB::bind_method(D_METHOD("can_drop_data_fw"), &VisualShaderEditor::can_drop_data_fw);
+	ClassDB::bind_method(D_METHOD("drop_data_fw"), &VisualShaderEditor::drop_data_fw);
+
+	ClassDB::bind_method("_is_available", &VisualShaderEditor::_is_available);
+	ClassDB::bind_method("_tools_menu_option", &VisualShaderEditor::_tools_menu_option);
+	ClassDB::bind_method("_show_members_dialog", &VisualShaderEditor::_show_members_dialog);
+	ClassDB::bind_method("_sbox_input", &VisualShaderEditor::_sbox_input);
+	ClassDB::bind_method("_member_filter_changed", &VisualShaderEditor::_member_filter_changed);
+	ClassDB::bind_method("_member_selected", &VisualShaderEditor::_member_selected);
+	ClassDB::bind_method("_member_unselected", &VisualShaderEditor::_member_unselected);
+	ClassDB::bind_method("_member_create", &VisualShaderEditor::_member_create);
 }
 
 VisualShaderEditor *VisualShaderEditor::singleton = NULL;
@@ -785,10 +1309,14 @@ VisualShaderEditor::VisualShaderEditor() {
 
 	singleton = this;
 	updating = false;
+	saved_node_pos_dirty = false;
+	saved_node_pos = Point2(0, 0);
 
 	graph = memnew(GraphEdit);
 	add_child(graph);
+	graph->set_drag_forwarding(this);
 	graph->add_valid_right_disconnect_type(VisualShaderNode::PORT_TYPE_SCALAR);
+	graph->add_valid_right_disconnect_type(VisualShaderNode::PORT_TYPE_BOOLEAN);
 	graph->add_valid_right_disconnect_type(VisualShaderNode::PORT_TYPE_VECTOR);
 	graph->add_valid_right_disconnect_type(VisualShaderNode::PORT_TYPE_TRANSFORM);
 	//graph->add_valid_left_disconnect_type(0);
@@ -798,10 +1326,17 @@ VisualShaderEditor::VisualShaderEditor() {
 	graph->connect("node_selected", this, "_node_selected");
 	graph->connect("scroll_offset_changed", this, "_scroll_changed");
 	graph->connect("duplicate_nodes_request", this, "_duplicate_nodes");
+	graph->connect("delete_nodes_request", this, "_on_nodes_delete");
+	graph->connect("gui_input", this, "_graph_gui_input");
 	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_SCALAR, VisualShaderNode::PORT_TYPE_SCALAR);
 	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_SCALAR, VisualShaderNode::PORT_TYPE_VECTOR);
+	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_SCALAR, VisualShaderNode::PORT_TYPE_BOOLEAN);
 	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_VECTOR, VisualShaderNode::PORT_TYPE_SCALAR);
 	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_VECTOR, VisualShaderNode::PORT_TYPE_VECTOR);
+	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_VECTOR, VisualShaderNode::PORT_TYPE_BOOLEAN);
+	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_BOOLEAN, VisualShaderNode::PORT_TYPE_SCALAR);
+	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_BOOLEAN, VisualShaderNode::PORT_TYPE_VECTOR);
+	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_BOOLEAN, VisualShaderNode::PORT_TYPE_BOOLEAN);
 	graph->add_valid_connection_type(VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShaderNode::PORT_TYPE_TRANSFORM);
 
 	VSeparator *vs = memnew(VSeparator);
@@ -817,40 +1352,373 @@ VisualShaderEditor::VisualShaderEditor() {
 	graph->get_zoom_hbox()->add_child(edit_type);
 	graph->get_zoom_hbox()->move_child(edit_type, 0);
 
-	add_node = memnew(MenuButton);
+	add_node = memnew(ToolButton);
 	graph->get_zoom_hbox()->add_child(add_node);
 	add_node->set_text(TTR("Add Node..."));
 	graph->get_zoom_hbox()->move_child(add_node, 0);
-	add_node->get_popup()->connect("id_pressed", this, "_add_node");
-
-	add_options.push_back(AddOption("Scalar", "Constants", "VisualShaderNodeScalarConstant"));
-	add_options.push_back(AddOption("Vector", "Constants", "VisualShaderNodeVec3Constant"));
-	add_options.push_back(AddOption("Color", "Constants", "VisualShaderNodeColorConstant"));
-	add_options.push_back(AddOption("Transform", "Constants", "VisualShaderNodeTransformConstant"));
-	add_options.push_back(AddOption("Texture", "Constants", "VisualShaderNodeTexture"));
-	add_options.push_back(AddOption("CubeMap", "Constants", "VisualShaderNodeCubeMap"));
-	add_options.push_back(AddOption("ScalarOp", "Operators", "VisualShaderNodeScalarOp"));
-	add_options.push_back(AddOption("VectorOp", "Operators", "VisualShaderNodeVectorOp"));
-	add_options.push_back(AddOption("ColorOp", "Operators", "VisualShaderNodeColorOp"));
-	add_options.push_back(AddOption("TransformMult", "Operators", "VisualShaderNodeTransformMult"));
-	add_options.push_back(AddOption("TransformVectorMult", "Operators", "VisualShaderNodeTransformVecMult"));
-	add_options.push_back(AddOption("ScalarFunc", "Functions", "VisualShaderNodeScalarFunc"));
-	add_options.push_back(AddOption("VectorFunc", "Functions", "VisualShaderNodeVectorFunc"));
-	add_options.push_back(AddOption("DotProduct", "Functions", "VisualShaderNodeDotProduct"));
-	add_options.push_back(AddOption("VectorLen", "Functions", "VisualShaderNodeVectorLen"));
-	add_options.push_back(AddOption("ScalarInterp", "Interpolation", "VisualShaderNodeScalarInterp"));
-	add_options.push_back(AddOption("VectorInterp", "Interpolation", "VisualShaderNodeVectorInterp"));
-	add_options.push_back(AddOption("VectorCompose", "Compose", "VisualShaderNodeVectorCompose"));
-	add_options.push_back(AddOption("TransformCompose", "Compose", "VisualShaderNodeTransformCompose"));
-	add_options.push_back(AddOption("VectorDecompose", "Decompose", "VisualShaderNodeVectorDecompose"));
-	add_options.push_back(AddOption("TransformDecompose", "Decompose", "VisualShaderNodeTransformDecompose"));
-	add_options.push_back(AddOption("Scalar", "Uniforms", "VisualShaderNodeScalarUniform"));
-	add_options.push_back(AddOption("Vector", "Uniforms", "VisualShaderNodeVec3Uniform"));
-	add_options.push_back(AddOption("Color", "Uniforms", "VisualShaderNodeColorUniform"));
-	add_options.push_back(AddOption("Transform", "Uniforms", "VisualShaderNodeTransformUniform"));
-	add_options.push_back(AddOption("Texture", "Uniforms", "VisualShaderNodeTextureUniform"));
-	add_options.push_back(AddOption("CubeMap", "Uniforms", "VisualShaderNodeCubeMapUniform"));
-	add_options.push_back(AddOption("Input", "Inputs", "VisualShaderNodeInput"));
+	add_node->connect("pressed", this, "_show_members_dialog", varray(false));
+
+	///////////////////////////////////////
+	// SHADER NODES TREE
+	///////////////////////////////////////
+
+	VBoxContainer *members_vb = memnew(VBoxContainer);
+	members_vb->set_v_size_flags(SIZE_EXPAND_FILL);
+
+	HBoxContainer *filter_hb = memnew(HBoxContainer);
+	members_vb->add_child(filter_hb);
+
+	node_filter = memnew(LineEdit);
+	filter_hb->add_child(node_filter);
+	node_filter->connect("text_changed", this, "_member_filter_changed");
+	node_filter->connect("gui_input", this, "_sbox_input");
+	node_filter->set_h_size_flags(SIZE_EXPAND_FILL);
+	node_filter->set_placeholder(TTR("Search"));
+
+	tools = memnew(MenuButton);
+	filter_hb->add_child(tools);
+	tools->set_tooltip(TTR("Options"));
+	tools->get_popup()->connect("id_pressed", this, "_tools_menu_option");
+	tools->get_popup()->add_item(TTR("Expand All"), EXPAND_ALL);
+	tools->get_popup()->add_item(TTR("Collapse All"), COLLAPSE_ALL);
+
+	members = memnew(Tree);
+	members_vb->add_child(members);
+	members->set_drag_forwarding(this);
+	members->set_h_size_flags(SIZE_EXPAND_FILL);
+	members->set_v_size_flags(SIZE_EXPAND_FILL);
+	members->set_hide_root(true);
+	members->set_allow_reselect(true);
+	members->set_hide_folding(false);
+	members->set_custom_minimum_size(Size2(180 * EDSCALE, 200 * EDSCALE));
+	members->connect("item_activated", this, "_member_create");
+	members->connect("item_selected", this, "_member_selected");
+	members->connect("nothing_selected", this, "_member_unselected");
+
+	Label *desc_label = memnew(Label);
+	members_vb->add_child(desc_label);
+	desc_label->set_text(TTR("Description:"));
+
+	node_desc = memnew(RichTextLabel);
+	members_vb->add_child(node_desc);
+	node_desc->set_h_size_flags(SIZE_EXPAND_FILL);
+	node_desc->set_v_size_flags(SIZE_FILL);
+	node_desc->set_custom_minimum_size(Size2(0, 70 * EDSCALE));
+
+	members_dialog = memnew(ConfirmationDialog);
+	members_dialog->set_title(TTR("Create Shader Node"));
+	members_dialog->add_child(members_vb);
+	members_dialog->get_ok()->set_text(TTR("Create"));
+	members_dialog->get_ok()->connect("pressed", this, "_member_create");
+	members_dialog->get_ok()->set_disabled(true);
+	members_dialog->set_resizable(true);
+	members_dialog->set_as_minsize();
+	add_child(members_dialog);
+
+	alert = memnew(AcceptDialog);
+	alert->set_as_minsize();
+	alert->get_label()->set_autowrap(true);
+	alert->get_label()->set_align(Label::ALIGN_CENTER);
+	alert->get_label()->set_valign(Label::VALIGN_CENTER);
+	alert->get_label()->set_custom_minimum_size(Size2(400, 60) * EDSCALE);
+	add_child(alert);
+
+	///////////////////////////////////////
+	// SHADER NODES TREE OPTIONS
+	///////////////////////////////////////
+
+	// COLOR
+
+	add_options.push_back(AddOption("ColorFunc", "Color", "Common", "VisualShaderNodeColorFunc", TTR("Color function."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ColorOp", "Color", "Common", "VisualShaderNodeColorOp", TTR("Color operator."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("Grayscale", "Color", "Functions", "VisualShaderNodeColorFunc", TTR("Grayscale function."), VisualShaderNodeColorFunc::FUNC_GRAYSCALE, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("HSV2RGB", "Color", "Functions", "VisualShaderNodeVectorFunc", TTR("Converts HSV vector to RGB equivalent."), VisualShaderNodeVectorFunc::FUNC_HSV2RGB, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("RGB2HSV", "Color", "Functions", "VisualShaderNodeVectorFunc", TTR("Converts RGB vector to HSV equivalent."), VisualShaderNodeVectorFunc::FUNC_RGB2HSV, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Sepia", "Color", "Functions", "VisualShaderNodeColorFunc", TTR("Sepia function."), VisualShaderNodeColorFunc::FUNC_SEPIA, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("Burn", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Burn operator."), VisualShaderNodeColorOp::OP_BURN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Darken", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Darken operator."), VisualShaderNodeColorOp::OP_DARKEN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Difference", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Difference operator."), VisualShaderNodeColorOp::OP_DIFFERENCE, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Dodge", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Dodge operator."), VisualShaderNodeColorOp::OP_DODGE, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("HardLight", "Color", "Operators", "VisualShaderNodeColorOp", TTR("HardLight operator"), VisualShaderNodeColorOp::OP_HARD_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Lighten", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Lighten operator."), VisualShaderNodeColorOp::OP_LIGHTEN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Overlay", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Overlay operator."), VisualShaderNodeColorOp::OP_OVERLAY, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Screen", "Color", "Operators", "VisualShaderNodeColorOp", TTR("Screen operator."), VisualShaderNodeColorOp::OP_SCREEN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("SoftLight", "Color", "Operators", "VisualShaderNodeColorOp", TTR("SoftLight operator."), VisualShaderNodeColorOp::OP_SOFT_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("ColorConstant", "Color", "Variables", "VisualShaderNodeColorConstant", TTR("Color constant."), -1, VisualShaderNode::PORT_TYPE_COLOR));
+	add_options.push_back(AddOption("ColorUniform", "Color", "Variables", "VisualShaderNodeColorUniform", TTR("Color uniform."), -1, VisualShaderNode::PORT_TYPE_COLOR));
+
+	// BOOLEAN
+	add_options.push_back(AddOption("If", "Conditional", "Functions", "VisualShaderNodeIf", TTR("Returns an associated vector if the provided scalars are equal, greater or less."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Switch", "Conditional", "Functions", "VisualShaderNodeSwitch", TTR("Returns an associated vector if the provided boolean value is true or false."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("BooleanConstant", "Conditional", "Variables", "VisualShaderNodeBooleanConstant", TTR("Boolean constant."), -1, VisualShaderNode::PORT_TYPE_BOOLEAN));
+	add_options.push_back(AddOption("BooleanUniform", "Conditional", "Variables", "VisualShaderNodeBooleanUniform", TTR("Boolean uniform."), -1, VisualShaderNode::PORT_TYPE_BOOLEAN));
+
+	// INPUT
+
+	// SPATIAL-FOR-ALL
+
+	add_options.push_back(AddOption("Camera", "Input", "All", "VisualShaderNodeInput", TTR("'camera' input parameter for all shader modes."), "camera", VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("InvCamera", "Input", "All", "VisualShaderNodeInput", TTR("'inv_camera' input parameter for all shader modes."), "inv_camera", VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("InvProjection", "Input", "All", "VisualShaderNodeInput", TTR("'inv_projection' input parameter for all shader modes."), "inv_projection", VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Normal", "Input", "All", "VisualShaderNodeInput", TTR("'normal' input parameter for all shader modes."), "normal", VisualShaderNode::PORT_TYPE_VECTOR, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Projection", "Input", "All", "VisualShaderNodeInput", TTR("'projection' input parameter for all shader modes."), "projection", VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Time", "Input", "All", "VisualShaderNodeInput", TTR("'time' input parameter for all shader modes."), "time", VisualShaderNode::PORT_TYPE_SCALAR, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("ViewportSize", "Input", "All", "VisualShaderNodeInput", TTR("'viewport_size' input parameter for all shader modes."), "viewport_size", VisualShaderNode::PORT_TYPE_VECTOR, -1, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("World", "Input", "All", "VisualShaderNodeInput", TTR("'world' input parameter for all shader modes."), "world", VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
+
+	// CANVASITEM-FOR-ALL
+
+	add_options.push_back(AddOption("Alpha", "Input", "All", "VisualShaderNodeInput", TTR("'alpha' input parameter for all shader modes."), "alpha", VisualShaderNode::PORT_TYPE_SCALAR, -1, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("Color", "Input", "All", "VisualShaderNodeInput", TTR("'color' input parameter for all shader modes."), "color", VisualShaderNode::PORT_TYPE_VECTOR, -1, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("TexturePixelSize", "Input", "All", "VisualShaderNodeInput", TTR("'texture_pixel_size' input parameter for all shader modes."), "texture_pixel_size", VisualShaderNode::PORT_TYPE_VECTOR, -1, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("Time", "Input", "All", "VisualShaderNodeInput", TTR("'time' input parameter for all shader modes."), "time", VisualShaderNode::PORT_TYPE_SCALAR, -1, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("UV", "Input", "All", "VisualShaderNodeInput", TTR("'uv' input parameter for all shader modes."), "uv", VisualShaderNode::PORT_TYPE_VECTOR, -1, Shader::MODE_CANVAS_ITEM));
+
+	/////////////////
+
+	add_options.push_back(AddOption("Input", "Input", "Common", "VisualShaderNodeInput", TTR("Input parameter.")));
+
+	// SPATIAL INPUTS
+
+	add_options.push_back(AddOption("Alpha", "Input", "Fragment", "VisualShaderNodeInput", TTR("'alpha' input parameter for vertex and fragment shader modes."), "alpha", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Binormal", "Input", "Fragment", "VisualShaderNodeInput", TTR("'binormal' input parameter for vertex and fragment shader modes."), "binormal", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Color", "Input", "Fragment", "VisualShaderNodeInput", TTR("'color' input parameter for vertex and fragment shader modes."), "color", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("FragCoord", "Input", "Fragment", "VisualShaderNodeInput", TTR("'fragcoord' input parameter for fragment and light shader modes."), "fragcoord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("PointCoord", "Input", "Fragment", "VisualShaderNodeInput", TTR("'point_coord' input parameter for fragment shader mode."), "point_coord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("ScreenUV", "Input", "Fragment", "VisualShaderNodeInput", TTR("'screen_uv' input parameter for fragment shader mode."), "screen_uv", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Side", "Input", "Fragment", "VisualShaderNodeInput", TTR("'side' input parameter for fragment shader mode."), "side", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Tangent", "Input", "Fragment", "VisualShaderNodeInput", TTR("'tangent' input parameter for vertex and fragment shader modes."), "tangent", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("UV", "Input", "Fragment", "VisualShaderNodeInput", TTR("'uv' input parameter for vertex and fragment shader modes."), "uv", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("UV2", "Input", "Fragment", "VisualShaderNodeInput", TTR("'uv2' input parameter for vertex and fragment shader modes."), "uv2", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Vertex", "Input", "Fragment", "VisualShaderNodeInput", TTR("'vertex' input parameter for vertex and fragment shader modes."), "vertex", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("View", "Input", "Fragment", "VisualShaderNodeInput", TTR("'view' input parameter for fragment and light shader modes."), "view", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_SPATIAL));
+
+	add_options.push_back(AddOption("Albedo", "Input", "Light", "VisualShaderNodeInput", TTR("'albedo' input parameter for light shader mode."), "albedo", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Attenuation", "Input", "Light", "VisualShaderNodeInput", TTR("'attenuation' input parameter for light shader mode."), "attenuation", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Diffuse", "Input", "Light", "VisualShaderNodeInput", TTR("'diffuse' input parameter for light shader mode."), "diffuse", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("FragCoord", "Input", "Light", "VisualShaderNodeInput", TTR("'fragcoord' input parameter for fragment and light shader modes."), "fragcoord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Light", "Input", "Light", "VisualShaderNodeInput", TTR("'light' input parameter for light shader mode."), "light", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("LightColor", "Input", "Light", "VisualShaderNodeInput", TTR("'light_color' input parameter for light shader mode."), "light_color", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Roughness", "Input", "Light", "VisualShaderNodeInput", TTR("'roughness' input parameter for light shader mode."), "roughness", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Specular", "Input", "Light", "VisualShaderNodeInput", TTR("'specular' input parameter for light shader mode."), "specular", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Transmission", "Input", "Light", "VisualShaderNodeInput", TTR("'transmission' input parameter for light shader mode."), "transmission", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("View", "Input", "Light", "VisualShaderNodeInput", TTR("'view' input parameter for fragment and light shader modes."), "view", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_SPATIAL));
+
+	add_options.push_back(AddOption("Alpha", "Input", "Vertex", "VisualShaderNodeInput", TTR("'alpha' input parameter for vertex and fragment shader modes."), "alpha", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Binormal", "Input", "Vertex", "VisualShaderNodeInput", TTR("'binormal' input parameter for vertex and fragment shader modes."), "binormal", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Color", "Input", "Vertex", "VisualShaderNodeInput", TTR("'color' input parameter for vertex and fragment shader modes."), "color", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("ModelView", "Input", "Vertex", "VisualShaderNodeInput", TTR("'modelview' input parameter for vertex shader mode."), "modelview", VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("PointSize", "Input", "Vertex", "VisualShaderNodeInput", TTR("'point_size' input parameter for vertex shader mode."), "point_size", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Tangent", "Input", "Vertex", "VisualShaderNodeInput", TTR("'tangent' input parameter for vertex and fragment shader mode."), "tangent", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("UV", "Input", "Vertex", "VisualShaderNodeInput", TTR("'uv' input parameter for vertex and fragment shader modes."), "uv", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("UV2", "Input", "Vertex", "VisualShaderNodeInput", TTR("'uv2' input parameter for vertex and fragment shader modes."), "uv2", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+	add_options.push_back(AddOption("Vertex", "Input", "Vertex", "VisualShaderNodeInput", TTR("'vertex' input parameter for vertex and fragment shader modes."), "vertex", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_SPATIAL));
+
+	// CANVASITEM INPUTS
+
+	add_options.push_back(AddOption("FragCoord", "Input", "Fragment", "VisualShaderNodeInput", TTR("'fragcoord' input parameter for fragment and light shader modes."), "fragcoord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightPass", "Input", "Fragment", "VisualShaderNodeInput", TTR("'light_pass' input parameter for vertex and fragment shader modes."), "light_pass", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("PointCoord", "Input", "Fragment", "VisualShaderNodeInput", TTR("'point_coord' input parameter for fragment and light shader modes."), "point_coord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("ScreenPixelSize", "Input", "Fragment", "VisualShaderNodeInput", TTR("'screen_pixel_size' input parameter for fragment shader mode."), "screen_pixel_size", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("ScreenUV", "Input", "Fragment", "VisualShaderNodeInput", TTR("'screen_uv' input parameter for fragment and light shader modes."), "screen_uv", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT, Shader::MODE_CANVAS_ITEM));
+
+	add_options.push_back(AddOption("FragCoord", "Input", "Light", "VisualShaderNodeInput", TTR("'fragcoord' input parameter for fragment and light shader modes."), "fragcoord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightAlpha", "Input", "Light", "VisualShaderNodeInput", TTR("'light_alpha' input parameter for light shader mode."), "light_alpha", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightColor", "Input", "Light", "VisualShaderNodeInput", TTR("'light_color' input parameter for light shader mode."), "light_color", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightHeight", "Input", "Light", "VisualShaderNodeInput", TTR("'light_height' input parameter for light shader mode."), "light_height", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightUV", "Input", "Light", "VisualShaderNodeInput", TTR("'light_uv' input parameter for light shader mode."), "light_uv", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightVector", "Input", "Light", "VisualShaderNodeInput", TTR("'light_vec' input parameter for light shader mode."), "light_vec", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("Normal", "Input", "Light", "VisualShaderNodeInput", TTR("'normal' input parameter for light shader mode."), "normal", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("PointCoord", "Input", "Light", "VisualShaderNodeInput", TTR("'point_coord' input parameter for fragment and light shader modes."), "point_coord", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("ScreenUV", "Input", "Light", "VisualShaderNodeInput", TTR("'screen_uv' input parameter for fragment and light shader modes."), "screen_uv", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("ShadowColor", "Input", "Light", "VisualShaderNodeInput", TTR("'shadow_color' input parameter for light shader mode."), "shadow_color", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_LIGHT, Shader::MODE_CANVAS_ITEM));
+
+	add_options.push_back(AddOption("Extra", "Input", "Vertex", "VisualShaderNodeInput", TTR("'extra' input parameter for vertex shader mode."), "extra", VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShader::TYPE_VERTEX, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("LightPass", "Input", "Vertex", "VisualShaderNodeInput", TTR("'light_pass' input parameter for vertex and fragment shader modes."), "light_pass", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("PointSize", "Input", "Vertex", "VisualShaderNodeInput", TTR("'point_size' input parameter for vertex shader mode."), "point_size", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("Projection", "Input", "Vertex", "VisualShaderNodeInput", TTR("'projection' input parameter for vertex shader mode."), "projection", VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShader::TYPE_VERTEX, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("Vertex", "Input", "Vertex", "VisualShaderNodeInput", TTR("'vertex' input parameter for vertex shader mode."), "vertex", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_CANVAS_ITEM));
+	add_options.push_back(AddOption("World", "Input", "Vertex", "VisualShaderNodeInput", TTR("'world' input parameter for vertex shader mode."), "world", VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShader::TYPE_VERTEX, Shader::MODE_CANVAS_ITEM));
+
+	// PARTICLES INPUTS
+
+	add_options.push_back(AddOption("Active", "Input", "Vertex", "VisualShaderNodeInput", TTR("'active' input parameter for vertex shader mode."), "active", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Alpha", "Input", "Vertex", "VisualShaderNodeInput", TTR("'alpha' input parameter for vertex shader mode."), "alpha", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Color", "Input", "Vertex", "VisualShaderNodeInput", TTR("'color' input parameter for vertex shader mode."), "color", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Custom", "Input", "Vertex", "VisualShaderNodeInput", TTR("'custom' input parameter for vertex shader mode."), "custom", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("CustomAlpha", "Input", "Vertex", "VisualShaderNodeInput", TTR("'custom_alpha' input parameter for vertex shader mode."), "custom_alpha", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Delta", "Input", "Vertex", "VisualShaderNodeInput", TTR("'delta' input parameter for vertex shader mode."), "delta", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("EmissionTransform", "Input", "Vertex", "VisualShaderNodeInput", TTR("'emission_transform' input parameter for vertex shader mode."), "emission_transform", VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Index", "Input", "Vertex", "VisualShaderNodeInput", TTR("'index' input parameter for vertex shader mode."), "index", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("LifeTime", "Input", "Vertex", "VisualShaderNodeInput", TTR("'lifetime' input parameter for vertex shader mode."), "lifetime", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Restart", "Input", "Vertex", "VisualShaderNodeInput", TTR("'restart' input parameter for vertex shader mode."), "restart", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Time", "Input", "Vertex", "VisualShaderNodeInput", TTR("'time' input parameter for vertex shader mode."), "time", VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Transform", "Input", "Vertex", "VisualShaderNodeInput", TTR("'transform' input parameter for vertex shader mode."), "transform", VisualShaderNode::PORT_TYPE_TRANSFORM, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+	add_options.push_back(AddOption("Velocity", "Input", "Vertex", "VisualShaderNodeInput", TTR("'velocity' input parameter for vertex shader mode."), "velocity", VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_VERTEX, Shader::MODE_PARTICLES));
+
+	// SCALAR
+
+	add_options.push_back(AddOption("ScalarFunc", "Scalar", "Common", "VisualShaderNodeScalarFunc", TTR("Scalar function."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ScalarOp", "Scalar", "Common", "VisualShaderNodeScalarOp", TTR("Scalar operator."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+
+	add_options.push_back(AddOption("Abs", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the absolute value of the parameter."), VisualShaderNodeScalarFunc::FUNC_ABS, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ACos", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the arc-cosine of the parameter."), VisualShaderNodeScalarFunc::FUNC_ACOS, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ACosH", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Returns the inverse hyperbolic cosine of the parameter."), VisualShaderNodeScalarFunc::FUNC_ACOSH, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ASin", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the arc-sine of the parameter."), VisualShaderNodeScalarFunc::FUNC_ASIN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ASinH", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Returns the inverse hyperbolic sine of the parameter."), VisualShaderNodeScalarFunc::FUNC_ASINH, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ATan", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the arc-tangent of the parameter."), VisualShaderNodeScalarFunc::FUNC_ATAN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ATan2", "Scalar", "Functions", "VisualShaderNodeScalarOp", TTR("Returns the arc-tangent of the parameters."), VisualShaderNodeScalarOp::OP_ATAN2, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ATanH", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Returns the inverse hyperbolic tangent of the parameter."), VisualShaderNodeScalarFunc::FUNC_ATANH, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Ceil", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Finds the nearest integer that is greater than or equal to the parameter."), VisualShaderNodeScalarFunc::FUNC_CEIL, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Clamp", "Scalar", "Functions", "VisualShaderNodeScalarClamp", TTR("Constrains a value to lie between two further values."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Cos", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the cosine of the parameter."), VisualShaderNodeScalarFunc::FUNC_COS, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("CosH", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Returns the hyperbolic cosine of the parameter."), VisualShaderNodeScalarFunc::FUNC_COSH, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Degrees", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Converts a quantity in radians to degrees."), VisualShaderNodeScalarFunc::FUNC_DEGREES, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Exp", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Base-e Exponential."), VisualShaderNodeScalarFunc::FUNC_EXP, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Exp2", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Base-2 Exponential."), VisualShaderNodeScalarFunc::FUNC_EXP2, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Floor", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Finds the nearest integer less than or equal to the parameter."), VisualShaderNodeScalarFunc::FUNC_FLOOR, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Fract", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Computes the fractional part of the argument."), VisualShaderNodeScalarFunc::FUNC_FRAC, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("InverseSqrt", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the inverse of the square root of the parameter."), VisualShaderNodeScalarFunc::FUNC_INVERSE_SQRT, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Log", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Natural logarithm."), VisualShaderNodeScalarFunc::FUNC_LOG, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Log2", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Base-2 logarithm."), VisualShaderNodeScalarFunc::FUNC_LOG2, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Max", "Scalar", "Functions", "VisualShaderNodeScalarOp", TTR("Returns the greater of two values."), VisualShaderNodeScalarOp::OP_MAX, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Min", "Scalar", "Functions", "VisualShaderNodeScalarOp", TTR("Returns the lesser of two values."), VisualShaderNodeScalarOp::OP_MIN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Mix", "Scalar", "Functions", "VisualShaderNodeScalarInterp", TTR("Linear interpolation between two scalars."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Negate", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the opposite value of the parameter."), VisualShaderNodeScalarFunc::FUNC_NEGATE, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Pow", "Scalar", "Functions", "VisualShaderNodeScalarOp", TTR("Returns the value of the first parameter raised to the power of the second."), VisualShaderNodeScalarOp::OP_POW, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Radians", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Converts a quantity in degrees to radians."), VisualShaderNodeScalarFunc::FUNC_RADIANS, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Reciprocal", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("1.0 / scalar"), VisualShaderNodeScalarFunc::FUNC_RECIPROCAL, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Round", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Finds the nearest integer to the parameter."), VisualShaderNodeScalarFunc::FUNC_ROUND, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("RoundEven", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Finds the nearest even integer to the parameter."), VisualShaderNodeScalarFunc::FUNC_ROUNDEVEN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Saturate", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Clamps the value between 0.0 and 1.0."), VisualShaderNodeScalarFunc::FUNC_SATURATE, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Sign", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Extracts the sign of the parameter."), VisualShaderNodeScalarFunc::FUNC_SIGN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Sin", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the sine of the parameter."), VisualShaderNodeScalarFunc::FUNC_SIN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("SinH", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Returns the hyperbolic sine of the parameter."), VisualShaderNodeScalarFunc::FUNC_SINH, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Sqrt", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the square root of the parameter."), VisualShaderNodeScalarFunc::FUNC_SQRT, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("SmoothStep", "Scalar", "Functions", "VisualShaderNodeScalarSmoothStep", TTR("SmoothStep function( scalar(edge0), scalar(edge1), scalar(x) ).\n\nReturns 0.0 if 'x' is smaller then 'edge0' and 1.0 if x is larger than 'edge1'. Otherwise the return value is interpolated between 0.0 and 1.0 using Hermite polynomials."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Step", "Scalar", "Functions", "VisualShaderNodeScalarOp", TTR("Step function( scalar(edge), scalar(x) ).\n\nReturns 0.0 if 'x' is smaller then 'edge' and otherwise 1.0."), VisualShaderNodeScalarOp::OP_STEP, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Tan", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("Returns the tangent of the parameter."), VisualShaderNodeScalarFunc::FUNC_TAN, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("TanH", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Returns the hyperbolic tangent of the parameter."), VisualShaderNodeScalarFunc::FUNC_TANH, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Trunc", "Scalar", "Functions", "VisualShaderNodeScalarFunc", TTR("(GLES3 only) Finds the truncated value of the parameter."), VisualShaderNodeScalarFunc::FUNC_TRUNC, VisualShaderNode::PORT_TYPE_SCALAR));
+
+	add_options.push_back(AddOption("Add", "Scalar", "Operators", "VisualShaderNodeScalarOp", TTR("Adds scalar to scalar."), VisualShaderNodeScalarOp::OP_ADD, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Divide", "Scalar", "Operators", "VisualShaderNodeScalarOp", TTR("Divides scalar by scalar."), VisualShaderNodeScalarOp::OP_DIV, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Multiply", "Scalar", "Operators", "VisualShaderNodeScalarOp", TTR("Multiplies scalar by scalar."), VisualShaderNodeScalarOp::OP_MUL, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Remainder", "Scalar", "Operators", "VisualShaderNodeScalarOp", TTR("Returns the remainder of the two scalars."), VisualShaderNodeScalarOp::OP_MOD, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Subtract", "Scalar", "Operators", "VisualShaderNodeScalarOp", TTR("Subtracts scalar from scalar."), VisualShaderNodeScalarOp::OP_SUB, VisualShaderNode::PORT_TYPE_SCALAR));
+
+	add_options.push_back(AddOption("ScalarConstant", "Scalar", "Variables", "VisualShaderNodeScalarConstant", TTR("Scalar constant."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("ScalarUniform", "Scalar", "Variables", "VisualShaderNodeScalarUniform", TTR("Scalar uniform."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+
+	// TEXTURES
+
+	add_options.push_back(AddOption("CubeMap", "Textures", "Functions", "VisualShaderNodeCubeMap", TTR("Perform the cubic texture lookup."), -1, VisualShaderNode::PORT_TYPE_COLOR));
+	add_options.push_back(AddOption("Texture", "Textures", "Functions", "VisualShaderNodeTexture", TTR("Perform the texture lookup."), -1, VisualShaderNode::PORT_TYPE_COLOR));
+
+	add_options.push_back(AddOption("CubeMapUniform", "Textures", "Variables", "VisualShaderNodeCubeMapUniform", TTR("Cubic texture uniform."), -1, VisualShaderNode::PORT_TYPE_COLOR));
+	add_options.push_back(AddOption("TextureUniform", "Textures", "Variables", "VisualShaderNodeTextureUniform", TTR("2D texture uniform."), -1, VisualShaderNode::PORT_TYPE_COLOR));
+
+	// TRANSFORM
+
+	add_options.push_back(AddOption("TransformFunc", "Transform", "Common", "VisualShaderNodeTransformFunc", TTR("Transform function."), -1, VisualShaderNode::PORT_TYPE_TRANSFORM));
+
+	add_options.push_back(AddOption("OuterProduct", "Transform", "Composition", "VisualShaderNodeOuterProduct", TTR("(GLES3 only) Calculate the outer product of a pair of vectors.\n\nOuterProduct treats the first parameter 'c' as a column vector (matrix with one column) and the second parameter 'r' as a row vector (matrix with one row) and does a linear algebraic matrix multiply 'c * r', yielding a matrix whose number of rows is the number of components in 'c' and whose number of columns is the number of components in 'r'."), -1, VisualShaderNode::PORT_TYPE_TRANSFORM));
+	add_options.push_back(AddOption("TransformCompose", "Transform", "Composition", "VisualShaderNodeTransformCompose", TTR("Composes transform from four vectors."), -1, VisualShaderNode::PORT_TYPE_TRANSFORM));
+	add_options.push_back(AddOption("TransformDecompose", "Transform", "Composition", "VisualShaderNodeTransformDecompose", TTR("Decomposes transform to four vectors.")));
+
+	add_options.push_back(AddOption("Determinant", "Transform", "Functions", "VisualShaderNodeDeterminant", TTR("(GLES3 only) Calculates the determinant of a transform."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Inverse", "Transform", "Functions", "VisualShaderNodeTransformFunc", TTR("(GLES3 only) Calculates the inverse of a transform."), VisualShaderNodeTransformFunc::FUNC_INVERSE, VisualShaderNode::PORT_TYPE_TRANSFORM));
+	add_options.push_back(AddOption("Transpose", "Transform", "Functions", "VisualShaderNodeTransformFunc", TTR("(GLES3 only) Calculates the transpose of a transform."), VisualShaderNodeTransformFunc::FUNC_TRANSPOSE, VisualShaderNode::PORT_TYPE_TRANSFORM));
+
+	add_options.push_back(AddOption("TransformMult", "Transform", "Operators", "VisualShaderNodeTransformMult", TTR("Multiplies transform by transform."), -1, VisualShaderNode::PORT_TYPE_TRANSFORM));
+	add_options.push_back(AddOption("TransformVectorMult", "Transform", "Operators", "VisualShaderNodeTransformVecMult", TTR("Multiplies vector by transform."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("TransformConstant", "Transform", "Variables", "VisualShaderNodeTransformConstant", TTR("Transform constant."), -1, VisualShaderNode::PORT_TYPE_TRANSFORM));
+	add_options.push_back(AddOption("TransformUniform", "Transform", "Variables", "VisualShaderNodeTransformUniform", TTR("Transform uniform."), -1, VisualShaderNode::PORT_TYPE_TRANSFORM));
+
+	// VECTOR
+
+	add_options.push_back(AddOption("VectorFunc", "Vector", "Common", "VisualShaderNodeVectorFunc", TTR("Vector function."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("VectorOp", "Vector", "Common", "VisualShaderNodeVectorOp", TTR("Vector operator."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("VectorCompose", "Vector", "Composition", "VisualShaderNodeVectorCompose", TTR("Composes vector from three scalars."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("VectorDecompose", "Vector", "Composition", "VisualShaderNodeVectorDecompose", TTR("Decomposes vector to three scalars.")));
+
+	add_options.push_back(AddOption("Abs", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the absolute value of the parameter."), VisualShaderNodeVectorFunc::FUNC_ABS, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ACos", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the arc-cosine of the parameter."), VisualShaderNodeVectorFunc::FUNC_ACOS, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ACosH", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Returns the inverse hyperbolic cosine of the parameter."), VisualShaderNodeVectorFunc::FUNC_ACOSH, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ASin", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the arc-sine of the parameter."), VisualShaderNodeVectorFunc::FUNC_ASIN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ASinH", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Returns the inverse hyperbolic sine of the parameter."), VisualShaderNodeVectorFunc::FUNC_ASINH, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ATan", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the arc-tangent of the parameter."), VisualShaderNodeVectorFunc::FUNC_ATAN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ATan2", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Returns the arc-tangent of the parameters."), VisualShaderNodeVectorOp::OP_ATAN2, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("ATanH", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Returns the inverse hyperbolic tangent of the parameter."), VisualShaderNodeVectorFunc::FUNC_ATANH, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Ceil", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Finds the nearest integer that is greater than or equal to the parameter."), VisualShaderNodeVectorFunc::FUNC_CEIL, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Clamp", "Vector", "Functions", "VisualShaderNodeVectorClamp", TTR("Constrains a value to lie between two further values."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Cos", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the cosine of the parameter."), VisualShaderNodeVectorFunc::FUNC_COS, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("CosH", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Returns the hyperbolic cosine of the parameter."), VisualShaderNodeVectorFunc::FUNC_COSH, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Cross", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Calculates the cross product of two vectors."), VisualShaderNodeVectorOp::OP_CROSS, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Degrees", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Converts a quantity in radians to degrees."), VisualShaderNodeVectorFunc::FUNC_DEGREES, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Distance", "Vector", "Functions", "VisualShaderNodeVectorDistance", TTR("Returns the distance between two points."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Dot", "Vector", "Functions", "VisualShaderNodeDotProduct", TTR("Calculates the dot product of two vectors."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Exp", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Base-e Exponential."), VisualShaderNodeVectorFunc::FUNC_EXP, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Exp2", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Base-2 Exponential."), VisualShaderNodeVectorFunc::FUNC_EXP2, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("FaceForward", "Vector", "Functions", "VisualShaderNodeFaceForward", TTR("Returns a vector that points in the same direction as a reference vector. The function has three vector parameters : N, the vector to orient, I, the incident vector, and Nref, the reference vector. If the dot product of I and Nref is smaller than zero the return value is N. Otherwise -N is returned."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Floor", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Finds the nearest integer less than or equal to the parameter."), VisualShaderNodeVectorFunc::FUNC_FLOOR, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Fract", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Computes the fractional part of the argument."), VisualShaderNodeVectorFunc::FUNC_FRAC, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("InverseSqrt", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the inverse of the square root of the parameter."), VisualShaderNodeVectorFunc::FUNC_INVERSE_SQRT, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Length", "Vector", "Functions", "VisualShaderNodeVectorLen", TTR("Calculates the length of a vector."), -1, VisualShaderNode::PORT_TYPE_SCALAR));
+	add_options.push_back(AddOption("Log", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Natural logarithm."), VisualShaderNodeVectorFunc::FUNC_LOG, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Log2", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Base-2 logarithm."), VisualShaderNodeVectorFunc::FUNC_LOG2, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Max", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Returns the greater of two values."), VisualShaderNodeVectorOp::OP_MAX, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Min", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Returns the lesser of two values."), VisualShaderNodeVectorOp::OP_MIN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Mix", "Vector", "Functions", "VisualShaderNodeVectorInterp", TTR("Linear interpolation between two vectors."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Negate", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the opposite value of the parameter."), VisualShaderNodeVectorFunc::FUNC_NEGATE, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Normalize", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Calculates the normalize product of vector."), VisualShaderNodeVectorFunc::FUNC_NORMALIZE, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Pow", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Returns the value of the first parameter raised to the power of the second."), VisualShaderNodeVectorOp::OP_POW, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Radians", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Converts a quantity in degrees to radians."), VisualShaderNodeVectorFunc::FUNC_RADIANS, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Reciprocal", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("1.0 / vector"), VisualShaderNodeVectorFunc::FUNC_RECIPROCAL, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Reflect", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Returns a vector that points in the direction of reflection ( a : incident vector, b : normal vector )."), VisualShaderNodeVectorOp::OP_REFLECT, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Refract", "Vector", "Functions", "VisualShaderNodeVectorRefract", TTR("Returns a vector that points in the direction of refraction."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Round", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Finds the nearest integer to the parameter."), VisualShaderNodeVectorFunc::FUNC_ROUND, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("RoundEven", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Finds the nearest even integer to the parameter."), VisualShaderNodeVectorFunc::FUNC_ROUNDEVEN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Saturate", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Clamps the value between 0.0 and 1.0."), VisualShaderNodeVectorFunc::FUNC_SATURATE, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Sign", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Extracts the sign of the parameter."), VisualShaderNodeVectorFunc::FUNC_SIGN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Sin", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the sine of the parameter."), VisualShaderNodeVectorFunc::FUNC_SIN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("SinH", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Returns the hyperbolic sine of the parameter."), VisualShaderNodeVectorFunc::FUNC_SINH, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Sqrt", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the square root of the parameter."), VisualShaderNodeVectorFunc::FUNC_SQRT, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("SmoothStep", "Vector", "Functions", "VisualShaderNodeVectorSmoothStep", TTR("SmoothStep function( vector(edge0), vector(edge1), vector(x) ).\n\nReturns 0.0 if 'x' is smaller then 'edge0' and 1.0 if 'x' is larger than 'edge1'. Otherwise the return value is interpolated between 0.0 and 1.0 using Hermite polynomials."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("SmoothStepS", "Vector", "Functions", "VisualShaderNodeVectorScalarSmoothStep", TTR("SmoothStep function( scalar(edge0), scalar(edge1), vector(x) ).\n\nReturns 0.0 if 'x' is smaller then 'edge0' and 1.0 if 'x' is larger than 'edge1'. Otherwise the return value is interpolated between 0.0 and 1.0 using Hermite polynomials."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Step", "Vector", "Functions", "VisualShaderNodeVectorOp", TTR("Step function( vector(edge), vector(x) ).\n\nReturns 0.0 if 'x' is smaller then 'edge' and otherwise 1.0."), VisualShaderNodeVectorOp::OP_STEP, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("StepS", "Vector", "Functions", "VisualShaderNodeVectorScalarStep", TTR("Step function( scalar(edge), vector(x) ).\n\nReturns 0.0 if 'x' is smaller then 'edge' and otherwise 1.0."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Tan", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("Returns the tangent of the parameter."), VisualShaderNodeVectorFunc::FUNC_TAN, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("TanH", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Returns the hyperbolic tangent of the parameter."), VisualShaderNodeVectorFunc::FUNC_TANH, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Trunc", "Vector", "Functions", "VisualShaderNodeVectorFunc", TTR("(GLES3 only) Finds the truncated value of the parameter."), VisualShaderNodeVectorFunc::FUNC_TRUNC, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("Add", "Vector", "Operators", "VisualShaderNodeVectorOp", TTR("Adds vector to vector."), VisualShaderNodeVectorOp::OP_ADD, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Divide", "Vector", "Operators", "VisualShaderNodeVectorOp", TTR("Divides vector by vector."), VisualShaderNodeVectorOp::OP_DIV, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Multiply", "Vector", "Operators", "VisualShaderNodeVectorOp", TTR("Multiplies vector by vector."), VisualShaderNodeVectorOp::OP_MUL, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Remainder", "Vector", "Operators", "VisualShaderNodeVectorOp", TTR("Returns the remainder of the two vectors."), VisualShaderNodeVectorOp::OP_MOD, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("Subtract", "Vector", "Operators", "VisualShaderNodeVectorOp", TTR("Subtracts vector from vector."), VisualShaderNodeVectorOp::OP_SUB, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	add_options.push_back(AddOption("VectorConstant", "Vector", "Variables", "VisualShaderNodeVec3Constant", TTR("Vector constant."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+	add_options.push_back(AddOption("VectorUniform", "Vector", "Variables", "VisualShaderNodeVec3Uniform", TTR("Vector uniform."), -1, VisualShaderNode::PORT_TYPE_VECTOR));
+
+	// SPECIAL
+
+	add_options.push_back(AddOption("ScalarDerivativeFunc", "Special", "Common", "VisualShaderNodeScalarDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) Scalar derivative function."), -1, VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+	add_options.push_back(AddOption("VectorDerivativeFunc", "Special", "Common", "VisualShaderNodeVectorDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) Vector derivative function."), -1, VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+
+	add_options.push_back(AddOption("DdX", "Special", "Derivative", "VisualShaderNodeVectorDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) (Vector) Derivative in 'x' using local differencing."), VisualShaderNodeVectorDerivativeFunc::FUNC_X, VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+	add_options.push_back(AddOption("DdXS", "Special", "Derivative", "VisualShaderNodeScalarDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) (Scalar) Derivative in 'x' using local differencing."), VisualShaderNodeScalarDerivativeFunc::FUNC_X, VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+	add_options.push_back(AddOption("DdY", "Special", "Derivative", "VisualShaderNodeVectorDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) (Vector) Derivative in 'y' using local differencing."), VisualShaderNodeVectorDerivativeFunc::FUNC_Y, VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+	add_options.push_back(AddOption("DdYS", "Special", "Derivative", "VisualShaderNodeScalarDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) (Scalar) Derivative in 'y' using local differencing."), VisualShaderNodeScalarDerivativeFunc::FUNC_Y, VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+	add_options.push_back(AddOption("Sum", "Special", "Derivative", "VisualShaderNodeVectorDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) (Vector) Sum of absolute derivative in 'x' and 'y'."), VisualShaderNodeVectorDerivativeFunc::FUNC_SUM, VisualShaderNode::PORT_TYPE_VECTOR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+	add_options.push_back(AddOption("SumS", "Special", "Derivative", "VisualShaderNodeScalarDerivativeFunc", TTR("(GLES3 only) (Fragment/Light mode only) (Scalar) Sum of absolute derivative in 'x' and 'y'."), VisualShaderNodeScalarDerivativeFunc::FUNC_SUM, VisualShaderNode::PORT_TYPE_SCALAR, VisualShader::TYPE_FRAGMENT | VisualShader::TYPE_LIGHT));
+
+	/////////////////////////////////////////////////////////////////////
 
 	_update_options_menu();
 
@@ -940,9 +1808,10 @@ public:
 
 	void setup(const Ref<VisualShaderNodeInput> &p_input) {
 		input = p_input;
-		Ref<Texture> type_icon[3] = {
+		Ref<Texture> type_icon[4] = {
 			EditorNode::get_singleton()->get_gui_base()->get_icon("float", "EditorIcons"),
 			EditorNode::get_singleton()->get_gui_base()->get_icon("Vector3", "EditorIcons"),
+			EditorNode::get_singleton()->get_gui_base()->get_icon("bool", "EditorIcons"),
 			EditorNode::get_singleton()->get_gui_base()->get_icon("Transform", "EditorIcons"),
 		};
 
@@ -1065,9 +1934,9 @@ Control *VisualShaderNodePluginDefault::create_editor(const Ref<VisualShaderNode
 		if (Object::cast_to<EditorPropertyResource>(prop)) {
 			Object::cast_to<EditorPropertyResource>(prop)->set_use_sub_inspector(false);
 			prop->set_custom_minimum_size(Size2(100 * EDSCALE, 0));
-		} else if (Object::cast_to<EditorPropertyTransform>(prop)) {
+		} else if (Object::cast_to<EditorPropertyTransform>(prop) || Object::cast_to<EditorPropertyVector3>(prop)) {
 			prop->set_custom_minimum_size(Size2(250 * EDSCALE, 0));
-		} else if (Object::cast_to<EditorPropertyFloat>(prop) || Object::cast_to<EditorPropertyVector3>(prop)) {
+		} else if (Object::cast_to<EditorPropertyFloat>(prop)) {
 			prop->set_custom_minimum_size(Size2(100 * EDSCALE, 0));
 		} else if (Object::cast_to<EditorPropertyEnum>(prop)) {
 			prop->set_custom_minimum_size(Size2(100 * EDSCALE, 0));
@@ -1137,6 +2006,9 @@ void EditorPropertyShaderMode::_option_selected(int p_which) {
 		}
 	}
 
+	undo_redo->add_do_method(VisualShaderEditor::get_singleton(), "_update_options_menu");
+	undo_redo->add_undo_method(VisualShaderEditor::get_singleton(), "_update_options_menu");
+
 	//update graph
 	undo_redo->add_do_method(VisualShaderEditor::get_singleton(), "_update_graph");
 	undo_redo->add_undo_method(VisualShaderEditor::get_singleton(), "_update_graph");
diff --git a/editor/plugins/visual_shader_editor_plugin.h b/editor/plugins/visual_shader_editor_plugin.h
index 2fb8a85d5b..eb0dee7594 100644
--- a/editor/plugins/visual_shader_editor_plugin.h
+++ b/editor/plugins/visual_shader_editor_plugin.h
@@ -60,7 +60,7 @@ class VisualShaderEditor : public VBoxContainer {
 
 	Ref<VisualShader> visual_shader;
 	GraphEdit *graph;
-	MenuButton *add_node;
+	ToolButton *add_node;
 
 	OptionButton *edit_type;
 
@@ -68,18 +68,62 @@ class VisualShaderEditor : public VBoxContainer {
 	Label *error_label;
 
 	UndoRedo *undo_redo;
+	Point2 saved_node_pos;
+	bool saved_node_pos_dirty;
+
+	ConfirmationDialog *members_dialog;
+	MenuButton *tools;
+
+	enum ToolsMenuOptions {
+		EXPAND_ALL,
+		COLLAPSE_ALL
+	};
+
+	Tree *members;
+	AcceptDialog *alert;
+	LineEdit *node_filter;
+	RichTextLabel *node_desc;
+
+	void _tools_menu_option(int p_idx);
+	void _show_members_dialog(bool at_mouse_pos);
 
 	void _update_graph();
 
 	struct AddOption {
 		String name;
 		String category;
+		String sub_category;
 		String type;
+		String description;
+		int sub_func;
+		String sub_func_str;
 		Ref<Script> script;
-		AddOption(const String &p_name = String(), const String &p_category = String(), const String &p_type = String()) {
+		int mode;
+		int return_type;
+		int func;
+
+		AddOption(const String &p_name = String(), const String &p_category = String(), const String &p_sub_category = String(), const String &p_type = String(), const String &p_description = String(), int p_sub_func = -1, int p_return_type = -1, int p_mode = -1, int p_func = -1) {
+			name = p_name;
+			type = p_type;
+			category = p_category;
+			sub_category = p_sub_category;
+			description = p_description;
+			sub_func = p_sub_func;
+			return_type = p_return_type;
+			mode = p_mode;
+			func = p_func;
+		}
+
+		AddOption(const String &p_name, const String &p_category, const String &p_sub_category, const String &p_type, const String &p_description, const String &p_sub_func, int p_return_type = -1, int p_mode = -1, int p_func = -1) {
 			name = p_name;
 			type = p_type;
 			category = p_category;
+			sub_category = p_sub_category;
+			description = p_description;
+			sub_func_str = p_sub_func;
+			return_type = p_return_type;
+			mode = p_mode;
+			func = p_func;
 		}
 	};
 
@@ -87,7 +131,7 @@ class VisualShaderEditor : public VBoxContainer {
 
 	void _draw_color_over_button(Object *obj, Color p_color);
 
-	void _add_node(int p_idx);
+	void _add_node(int p_idx, int p_op_idx = -1);
 	void _update_options_menu();
 
 	static VisualShaderEditor *singleton;
@@ -102,6 +146,7 @@ class VisualShaderEditor : public VBoxContainer {
 	void _node_selected(Object *p_node);
 
 	void _delete_request(int);
+	void _on_nodes_delete();
 
 	void _removed_from_graph();
 
@@ -124,7 +169,20 @@ class VisualShaderEditor : public VBoxContainer {
 	void _input_select_item(Ref<VisualShaderNodeInput> input, String name);
 
 	void _preview_select_port(int p_node, int p_port);
-	void _input(const Ref<InputEvent> p_event);
+	void _graph_gui_input(const Ref<InputEvent> p_event);
+
+	void _member_filter_changed(const String &p_text);
+	void _sbox_input(const Ref<InputEvent> &p_ie);
+	void _member_selected();
+	void _member_unselected();
+	void _member_create();
+
+	Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
+	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
+	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
+
+	bool _is_available(int p_flags);
+	void _update_created_node(GraphNode *node);
 
 protected:
 	void _notification(int p_what);
diff --git a/editor/progress_dialog.cpp b/editor/progress_dialog.cpp
index 5fdc725f50..8dac5fa6b5 100644
--- a/editor/progress_dialog.cpp
+++ b/editor/progress_dialog.cpp
@@ -161,6 +161,7 @@ void ProgressDialog::_popup() {
 	main->set_margin(MARGIN_TOP, style->get_margin(MARGIN_TOP));
 	main->set_margin(MARGIN_BOTTOM, -style->get_margin(MARGIN_BOTTOM));
 
+	raise();
 	popup_centered(ms);
 }
 
@@ -220,6 +221,7 @@ bool ProgressDialog::task_step(const String &p_task, const String &p_state, int
 	if (cancel_hb->is_visible()) {
 		OS::get_singleton()->force_process_input();
 	}
+
 	Main::iteration(); // this will not work on a lot of platforms, so it's only meant for the editor
 	return cancelled;
 }
diff --git a/editor/project_export.cpp b/editor/project_export.cpp
index 82a6a07805..b9cf7ec10a 100644
--- a/editor/project_export.cpp
+++ b/editor/project_export.cpp
@@ -631,6 +631,7 @@ void ProjectExportDialog::_delete_preset_confirm() {
 
 	int idx = presets->get_current();
 	_edit_preset(-1);
+	export_button->set_disabled(true);
 	EditorExport::get_singleton()->remove_export_preset(idx);
 	_update_presets();
 }
@@ -931,7 +932,7 @@ void ProjectExportDialog::_export_project() {
 	Ref<EditorExportPlatform> platform = current->get_platform();
 	ERR_FAIL_COND(platform.is_null());
 
-	export_project->set_access(FileDialog::ACCESS_FILESYSTEM);
+	export_project->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
 	export_project->clear_filters();
 
 	List<String> extension_list = platform->get_binary_extensions(current);
@@ -955,7 +956,7 @@ void ProjectExportDialog::_export_project() {
 		export_project->get_line_edit()->connect("text_entered", export_project, "_file_entered");
 	}
 
-	export_project->set_mode(FileDialog::MODE_SAVE_FILE);
+	export_project->set_mode(EditorFileDialog::MODE_SAVE_FILE);
 	export_project->popup_centered_ratio();
 }
 
@@ -1184,9 +1185,9 @@ ProjectExportDialog::ProjectExportDialog() {
 	patches_hb->add_child(patch_export);
 	patches_hb->add_spacer();
 
-	patch_dialog = memnew(FileDialog);
+	patch_dialog = memnew(EditorFileDialog);
 	patch_dialog->add_filter("*.pck ; Pack File");
-	patch_dialog->set_mode(FileDialog::MODE_OPEN_FILE);
+	patch_dialog->set_mode(EditorFileDialog::MODE_OPEN_FILE);
 	patch_dialog->connect("file_selected", this, "_patch_selected");
 	add_child(patch_dialog);
 
@@ -1266,11 +1267,11 @@ ProjectExportDialog::ProjectExportDialog() {
 	export_all_button->connect("pressed", this, "_export_all_dialog");
 	export_all_button->set_disabled(true);
 
-	export_pck_zip = memnew(FileDialog);
+	export_pck_zip = memnew(EditorFileDialog);
 	export_pck_zip->add_filter("*.zip ; ZIP File");
 	export_pck_zip->add_filter("*.pck ; Godot Game Pack");
-	export_pck_zip->set_access(FileDialog::ACCESS_FILESYSTEM);
-	export_pck_zip->set_mode(FileDialog::MODE_SAVE_FILE);
+	export_pck_zip->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
+	export_pck_zip->set_mode(EditorFileDialog::MODE_SAVE_FILE);
 	add_child(export_pck_zip);
 	export_pck_zip->connect("file_selected", this, "_export_pck_zip_selected");
 
@@ -1300,8 +1301,8 @@ ProjectExportDialog::ProjectExportDialog() {
 	export_templates_error->add_child(download_templates);
 	download_templates->connect("pressed", this, "_open_export_template_manager");
 
-	export_project = memnew(FileDialog);
-	export_project->set_access(FileDialog::ACCESS_FILESYSTEM);
+	export_project = memnew(EditorFileDialog);
+	export_project->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
 	add_child(export_project);
 	export_project->connect("file_selected", this, "_export_project_to_path");
 	export_project->get_line_edit()->connect("text_changed", this, "_validate_export_path");
diff --git a/editor/project_export.h b/editor/project_export.h
index f8b6484477..476a30c9c0 100644
--- a/editor/project_export.h
+++ b/editor/project_export.h
@@ -90,7 +90,7 @@ private:
 	Tree *patches;
 	Button *patch_export;
 	int patch_index;
-	FileDialog *patch_dialog;
+	EditorFileDialog *patch_dialog;
 	ConfirmationDialog *patch_erase;
 
 	Button *export_button;
@@ -139,8 +139,8 @@ private:
 	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
 	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
 
-	FileDialog *export_pck_zip;
-	FileDialog *export_project;
+	EditorFileDialog *export_pck_zip;
+	EditorFileDialog *export_project;
 	CheckBox *export_debug;
 	CheckBox *export_pck_zip_debug;
 
diff --git a/editor/project_manager.cpp b/editor/project_manager.cpp
index a3bcfa6e70..6de4330493 100644
--- a/editor/project_manager.cpp
+++ b/editor/project_manager.cpp
@@ -765,7 +765,7 @@ public:
 
 				set_title(TTR("Install Project:") + " " + zip_title);
 				get_ok()->set_text(TTR("Install & Edit"));
-				name_container->hide();
+				name_container->show();
 				install_path_container->hide();
 				rasterizer_container->hide();
 				project_path->grab_focus();
@@ -798,7 +798,7 @@ public:
 
 		create_dir = memnew(Button);
 		pnhb->add_child(create_dir);
-		create_dir->set_text(TTR("Create folder"));
+		create_dir->set_text(TTR("Create Folder"));
 		create_dir->connect("pressed", this, "_create_folder");
 
 		path_container = memnew(VBoxContainer);
@@ -987,6 +987,24 @@ void ProjectManager::_update_project_buttons() {
 	open_btn->set_disabled(empty_selection);
 	rename_btn->set_disabled(empty_selection);
 	run_btn->set_disabled(empty_selection);
+
+	bool missing_projects = false;
+	Map<String, String> list_all_projects;
+	for (int i = 0; i < scroll_children->get_child_count(); i++) {
+		HBoxContainer *hb = Object::cast_to<HBoxContainer>(scroll_children->get_child(i));
+		if (hb) {
+			list_all_projects.insert(hb->get_meta("name"), hb->get_meta("main_scene"));
+		}
+	}
+	for (Map<String, String>::Element *E = list_all_projects.front(); E; E = E->next()) {
+		String project_name = E->key().replace(":::", ":/").replace("::", "/") + "/project.godot";
+		if (!FileAccess::exists(project_name)) {
+			missing_projects = true;
+			break;
+		}
+	}
+
+	erase_missing_btn->set_visible(missing_projects);
 }
 
 void ProjectManager::_panel_input(const Ref<InputEvent> &p_ev, Node *p_hb) {
@@ -1136,7 +1154,7 @@ void ProjectManager::_unhandled_input(const Ref<InputEvent> &p_ev) {
 
 					break;
 				}
-				// else fallthrough to key_down
+				FALLTHROUGH;
 			}
 			case KEY_DOWN: {
 
@@ -1530,13 +1548,13 @@ void ProjectManager::_open_selected_projects_ask() {
 
 	// Check if the config_version property was empty or 0
 	if (config_version == 0) {
-		ask_update_settings->set_text(vformat(TTR("The following project settings file does not specify the version of Godot through which it was created.\n\n%s\n\nIf you proceed with opening it, it will be converted to Godot's current configuration file format.\nWarning: You will not be able to open the project with previous versions of the engine anymore."), conf));
+		ask_update_settings->set_text(vformat(TTR("The following project settings file does not specify the version of Godot through which it was created.\n\n%s\n\nIf you proceed with opening it, it will be converted to Godot's current configuration file format.\nWarning: You won't be able to open the project with previous versions of the engine anymore."), conf));
 		ask_update_settings->popup_centered_minsize();
 		return;
 	}
 	// Check if we need to convert project settings from an earlier engine version
 	if (config_version < ProjectSettings::CONFIG_VERSION) {
-		ask_update_settings->set_text(vformat(TTR("The following project settings file was generated by an older engine version, and needs to be converted for this version:\n\n%s\n\nDo you want to convert it?\nWarning: You will not be able to open the project with previous versions of the engine anymore."), conf));
+		ask_update_settings->set_text(vformat(TTR("The following project settings file was generated by an older engine version, and needs to be converted for this version:\n\n%s\n\nDo you want to convert it?\nWarning: You won't be able to open the project with previous versions of the engine anymore."), conf));
 		ask_update_settings->popup_centered_minsize();
 		return;
 	}
@@ -1557,7 +1575,7 @@ void ProjectManager::_run_project_confirm() {
 
 		const String &selected_main = E->get();
 		if (selected_main == "") {
-			run_error_diag->set_text(TTR("Can't run project: no main scene defined.\nPlease edit the project and set the main scene in \"Project Settings\" under the \"Application\" category."));
+			run_error_diag->set_text(TTR("Can't run project: no main scene defined.\nPlease edit the project and set the main scene in the Project Settings under the \"Application\" category."));
 			run_error_diag->popup_centered();
 			return;
 		}
@@ -1597,7 +1615,7 @@ void ProjectManager::_run_project() {
 	}
 
 	if (selected_list.size() > 1) {
-		multi_run_ask->set_text(TTR("Are you sure to run more than one project?"));
+		multi_run_ask->set_text(vformat(TTR("Are you sure to run %d projects at once?"), selected_list.size()));
 		multi_run_ask->popup_centered_minsize();
 	} else {
 		_run_project_confirm();
@@ -1700,15 +1718,61 @@ void ProjectManager::_erase_project_confirm() {
 	_load_recent_projects();
 }
 
+void ProjectManager::_erase_missing_projects_confirm() {
+
+	Map<String, String> list_all_projects;
+	for (int i = 0; i < scroll_children->get_child_count(); i++) {
+		HBoxContainer *hb = Object::cast_to<HBoxContainer>(scroll_children->get_child(i));
+		if (hb) {
+			list_all_projects.insert(hb->get_meta("name"), hb->get_meta("main_scene"));
+		}
+	}
+
+	if (list_all_projects.size() == 0) {
+		return;
+	}
+
+	int deleted_projects = 0;
+	int remaining_projects = 0;
+	for (Map<String, String>::Element *E = list_all_projects.front(); E; E = E->next()) {
+		String project_name = E->key().replace(":::", ":/").replace("::", "/") + "/project.godot";
+		if (!FileAccess::exists(project_name)) {
+			deleted_projects++;
+			EditorSettings::get_singleton()->erase("projects/" + E->key());
+			EditorSettings::get_singleton()->erase("favorite_projects/" + E->key());
+		} else {
+			remaining_projects++;
+		}
+	}
+	print_line("Deleted " + itos(deleted_projects) + " projects, remaining " + itos(remaining_projects) + " projects");
+	EditorSettings::get_singleton()->save();
+	selected_list.clear();
+	last_clicked = "";
+	_load_recent_projects();
+}
+
 void ProjectManager::_erase_project() {
 
 	if (selected_list.size() == 0)
 		return;
 
-	erase_ask->set_text(TTR("Remove project from the list? (Folder contents will not be modified)"));
+	String confirm_message;
+	if (selected_list.size() >= 2) {
+		confirm_message = vformat(TTR("Remove %d projects from the list?\nThe project folders' contents won't be modified."), selected_list.size());
+	} else {
+		confirm_message = TTR("Remove this project from the list?\nThe project folder's contents won't be modified.");
+	}
+
+	erase_ask->set_text(confirm_message);
 	erase_ask->popup_centered_minsize();
 }
 
+void ProjectManager::_erase_missing_projects() {
+
+	erase_missing_ask->set_text(TTR("Remove all missing projects from the list? (Folders contents will not be modified)"));
+	erase_missing_ask->popup_centered_minsize();
+}
+
 void ProjectManager::_language_selected(int p_id) {
 
 	String lang = language_btn->get_item_metadata(p_id);
@@ -1716,7 +1780,7 @@ void ProjectManager::_language_selected(int p_id) {
 	language_btn->set_text(lang);
 	language_btn->set_icon(get_icon("Environment", "EditorIcons"));
 
-	language_restart_ask->set_text(TTR("Language changed.\nThe UI will update next time the editor or project manager starts."));
+	language_restart_ask->set_text(TTR("Language changed.\nThe interface will update after restarting the editor or project manager."));
 	language_restart_ask->popup_centered();
 }
 
@@ -1777,7 +1841,8 @@ void ProjectManager::_files_dropped(PoolStringArray p_files, int p_screen) {
 		if (confirm) {
 			multi_scan_ask->get_ok()->disconnect("pressed", this, "_scan_multiple_folders");
 			multi_scan_ask->get_ok()->connect("pressed", this, "_scan_multiple_folders", varray(folders));
-			multi_scan_ask->set_text(vformat(TTR("You are about the scan %s folders for existing Godot projects. Do you confirm?"), folders.size()));
+			multi_scan_ask->set_text(
+					vformat(TTR("Are you sure to scan %s folders for existing Godot projects?\nThis could take a while."), folders.size()));
 			multi_scan_ask->popup_centered_minsize();
 		} else {
 			_scan_multiple_folders(folders);
@@ -1804,7 +1869,9 @@ void ProjectManager::_bind_methods() {
 	ClassDB::bind_method("_new_project", &ProjectManager::_new_project);
 	ClassDB::bind_method("_rename_project", &ProjectManager::_rename_project);
 	ClassDB::bind_method("_erase_project", &ProjectManager::_erase_project);
+	ClassDB::bind_method("_erase_missing_projects", &ProjectManager::_erase_missing_projects);
 	ClassDB::bind_method("_erase_project_confirm", &ProjectManager::_erase_project_confirm);
+	ClassDB::bind_method("_erase_missing_projects_confirm", &ProjectManager::_erase_missing_projects_confirm);
 	ClassDB::bind_method("_language_selected", &ProjectManager::_language_selected);
 	ClassDB::bind_method("_restart_confirm", &ProjectManager::_restart_confirm);
 	ClassDB::bind_method("_exit_dialog", &ProjectManager::_exit_dialog);
@@ -2042,6 +2109,12 @@ ProjectManager::ProjectManager() {
 	erase->connect("pressed", this, "_erase_project");
 	erase_btn = erase;
 
+	Button *erase_missing = memnew(Button);
+	erase_missing->set_text(TTR("Remove Missing"));
+	tree_vb->add_child(erase_missing);
+	erase_missing->connect("pressed", this, "_erase_missing_projects");
+	erase_missing_btn = erase_missing;
+
 	tree_vb->add_spacer();
 
 	if (StreamPeerSSL::is_available()) {
@@ -2105,6 +2178,11 @@ ProjectManager::ProjectManager() {
 	language_restart_ask->get_cancel()->set_text(TTR("Continue"));
 	gui_base->add_child(language_restart_ask);
 
+	erase_missing_ask = memnew(ConfirmationDialog);
+	erase_missing_ask->get_ok()->set_text(TTR("Remove All"));
+	erase_missing_ask->get_ok()->connect("pressed", this, "_erase_missing_projects_confirm");
+	gui_base->add_child(erase_missing_ask);
+
 	erase_ask = memnew(ConfirmationDialog);
 	erase_ask->get_ok()->set_text(TTR("Remove"));
 	erase_ask->get_ok()->connect("pressed", this, "_erase_project_confirm");
@@ -2153,7 +2231,7 @@ ProjectManager::ProjectManager() {
 	gui_base->add_child(dialog_error);
 
 	open_templates = memnew(ConfirmationDialog);
-	open_templates->set_text(TTR("You don't currently have any projects.\nWould you like to explore the official example projects in the Asset Library?"));
+	open_templates->set_text(TTR("You currently don't have any projects.\nWould you like to explore official example projects in the Asset Library?"));
 	open_templates->get_ok()->set_text(TTR("Open Asset Library"));
 	open_templates->connect("confirmed", this, "_open_asset_library");
 	add_child(open_templates);
diff --git a/editor/project_manager.h b/editor/project_manager.h
index 1fdd7dbe06..382e9fc8fb 100644
--- a/editor/project_manager.h
+++ b/editor/project_manager.h
@@ -45,6 +45,7 @@ class ProjectManager : public Control {
 	GDCLASS(ProjectManager, Control);
 
 	Button *erase_btn;
+	Button *erase_missing_btn;
 	Button *open_btn;
 	Button *rename_btn;
 	Button *run_btn;
@@ -57,6 +58,7 @@ class ProjectManager : public Control {
 	FileDialog *scan_dir;
 	ConfirmationDialog *language_restart_ask;
 	ConfirmationDialog *erase_ask;
+	ConfirmationDialog *erase_missing_ask;
 	ConfirmationDialog *multi_open_ask;
 	ConfirmationDialog *multi_run_ask;
 	ConfirmationDialog *multi_scan_ask;
@@ -89,7 +91,9 @@ class ProjectManager : public Control {
 	void _new_project();
 	void _rename_project();
 	void _erase_project();
+	void _erase_missing_projects();
 	void _erase_project_confirm();
+	void _erase_missing_projects_confirm();
 	void _update_project_buttons();
 	void _language_selected(int p_id);
 	void _restart_confirm();
diff --git a/editor/project_settings_editor.cpp b/editor/project_settings_editor.cpp
index 21ba6efb82..71bddebcf5 100644
--- a/editor/project_settings_editor.cpp
+++ b/editor/project_settings_editor.cpp
@@ -111,7 +111,7 @@ void ProjectSettingsEditor::_notification(int p_what) {
 			restart_close_button->set_icon(get_icon("Close", "EditorIcons"));
 			restart_container->add_style_override("panel", get_stylebox("bg", "Tree"));
 			restart_icon->set_texture(get_icon("StatusWarning", "EditorIcons"));
-			restart_label->add_color_override("font_color", get_color("error_color", "Editor"));
+			restart_label->add_color_override("font_color", get_color("warning_color", "Editor"));
 
 		} break;
 		case NOTIFICATION_POPUP_HIDE: {
@@ -181,7 +181,7 @@ void ProjectSettingsEditor::_action_edited() {
 			ti->set_text(0, old_name);
 			add_at = "input/" + old_name;
 
-			message->set_text(vformat(TTR("Action '%s' already exists!"), new_name));
+			message->set_text(vformat(TTR("An action with the name '%s' already exists."), new_name));
 			message->popup_centered(Size2(300, 100) * EDSCALE);
 			return;
 		}
@@ -294,7 +294,8 @@ void ProjectSettingsEditor::_device_input_add() {
 			ie = jb;
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (idx < 0 || idx >= events.size()) {
@@ -519,7 +520,8 @@ void ProjectSettingsEditor::_add_item(int p_item, Ref<InputEvent> p_exiting_even
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -925,7 +927,7 @@ void ProjectSettingsEditor::_action_check(String p_action) {
 		}
 		if (ProjectSettings::get_singleton()->has_setting("input/" + p_action)) {
 
-			action_add_error->set_text(TTR("Already existing"));
+			action_add_error->set_text(vformat(TTR("An action with the name '%s' already exists."), p_action));
 			action_add_error->show();
 			action_add->set_disabled(true);
 			return;
@@ -1590,6 +1592,7 @@ void ProjectSettingsEditor::_toggle_search_bar(bool p_pressed) {
 		search_box->select_all();
 	} else {
 
+		search_box->clear();
 		search_bar->hide();
 		add_prop_bar->show();
 	}
@@ -1783,7 +1786,7 @@ ProjectSettingsEditor::ProjectSettingsEditor(EditorData *p_data) {
 	restart_icon->set_v_size_flags(SIZE_SHRINK_CENTER);
 	restart_hb->add_child(restart_icon);
 	restart_label = memnew(Label);
-	restart_label->set_text(TTR("Editor must be restarted for changes to take effect"));
+	restart_label->set_text(TTR("The editor must be restarted for changes to take effect."));
 	restart_hb->add_child(restart_label);
 	restart_hb->add_spacer();
 	Button *restart_button = memnew(Button);
@@ -2001,8 +2004,8 @@ ProjectSettingsEditor::ProjectSettingsEditor(EditorData *p_data) {
 		tvb->add_child(tmc);
 
 		translation_locale_filter_mode = memnew(OptionButton);
-		translation_locale_filter_mode->add_item(TTR("Show all locales"), SHOW_ALL_LOCALES);
-		translation_locale_filter_mode->add_item(TTR("Show only selected locales"), SHOW_ONLY_SELECTED_LOCALES);
+		translation_locale_filter_mode->add_item(TTR("Show All Locales"), SHOW_ALL_LOCALES);
+		translation_locale_filter_mode->add_item(TTR("Show Selected Locales Only"), SHOW_ONLY_SELECTED_LOCALES);
 		translation_locale_filter_mode->select(0);
 		tmc->add_margin_child(TTR("Filter mode:"), translation_locale_filter_mode);
 		translation_locale_filter_mode->connect("item_selected", this, "_translation_filter_mode_changed");
diff --git a/editor/property_editor.cpp b/editor/property_editor.cpp
index c45a97800c..4fa1bd74fe 100644
--- a/editor/property_editor.cpp
+++ b/editor/property_editor.cpp
@@ -310,7 +310,8 @@ void CustomPropertyEditor::_menu_option(int p_which) {
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1049,7 +1050,8 @@ bool CustomPropertyEditor::edit(Object *p_owner, const String &p_name, Variant::
 		case Variant::POOL_COLOR_ARRAY: {
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	updating = false;
@@ -1091,7 +1093,8 @@ void CustomPropertyEditor::_file_selected(String p_file) {
 			emit_signal("variant_changed");
 			hide();
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1432,7 +1435,8 @@ void CustomPropertyEditor::_action_pressed(int p_which) {
 
 		} break;
 
-		default: {};
+		default: {
+		};
 	}
 }
 
@@ -1699,7 +1703,8 @@ void CustomPropertyEditor::_modified(String p_string) {
 		case Variant::POOL_COLOR_ARRAY: {
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	updating = false;
@@ -1753,7 +1758,8 @@ void CustomPropertyEditor::_focus_enter() {
 				}
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1774,7 +1780,8 @@ void CustomPropertyEditor::_focus_exit() {
 				value_editor[i]->select(0, 0);
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
diff --git a/editor/quick_open.cpp b/editor/quick_open.cpp
index c197248c35..dc2f098333 100644
--- a/editor/quick_open.cpp
+++ b/editor/quick_open.cpp
@@ -255,14 +255,19 @@ void EditorQuickOpen::_confirmed() {
 
 void EditorQuickOpen::_notification(int p_what) {
 
-	if (p_what == NOTIFICATION_ENTER_TREE) {
+	switch (p_what) {
 
-		connect("confirmed", this, "_confirmed");
+		case NOTIFICATION_ENTER_TREE: {
 
-		search_box->set_right_icon(get_icon("Search", "EditorIcons"));
-		search_box->set_clear_button_enabled(true);
-	} else if (p_what == NOTIFICATION_EXIT_TREE) {
-		disconnect("confirmed", this, "_confirmed");
+			connect("confirmed", this, "_confirmed");
+
+			search_box->set_right_icon(get_icon("Search", "EditorIcons"));
+			search_box->set_clear_button_enabled(true);
+		} break;
+		case NOTIFICATION_EXIT_TREE: {
+
+			disconnect("confirmed", this, "_confirmed");
+		} break;
 	}
 }
 
@@ -297,6 +302,7 @@ EditorQuickOpen::EditorQuickOpen() {
 	set_hide_on_ok(false);
 	search_options->connect("item_activated", this, "_confirmed");
 	search_options->set_hide_root(true);
+	search_options->add_constant_override("draw_guides", 1);
 	ei = "EditorIcons";
 	ot = "Object";
 	add_directories = false;
diff --git a/editor/rename_dialog.cpp b/editor/rename_dialog.cpp
index ed1eec95dc..858b14a733 100644
--- a/editor/rename_dialog.cpp
+++ b/editor/rename_dialog.cpp
@@ -113,7 +113,7 @@ RenameDialog::RenameDialog(SceneTreeEditor *p_scene_tree_editor, UndoRedo *p_und
 	collapse_theme->set_icon("unchecked", "CheckBox", collapse_theme->get_icon("GuiTreeArrowRight", "EditorIcons"));
 
 	CheckBox *chk_collapse_features = memnew(CheckBox);
-	chk_collapse_features->set_text(TTR("Advanced options"));
+	chk_collapse_features->set_text(TTR("Advanced Options"));
 	chk_collapse_features->set_theme(collapse_theme);
 	chk_collapse_features->set_focus_mode(FOCUS_NONE);
 	vbc->add_child(chk_collapse_features);
diff --git a/editor/scene_tree_dock.cpp b/editor/scene_tree_dock.cpp
index 19b46ef90f..a41f10607b 100644
--- a/editor/scene_tree_dock.cpp
+++ b/editor/scene_tree_dock.cpp
@@ -290,12 +290,18 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 	switch (p_tool) {
 
 		case TOOL_BATCH_RENAME: {
+			if (!profile_allow_editing) {
+				break;
+			}
 			Tree *tree = scene_tree->get_scene_tree();
 			if (tree->is_anything_selected()) {
 				rename_dialog->popup_centered();
 			}
 		} break;
 		case TOOL_RENAME: {
+			if (!profile_allow_editing) {
+				break;
+			}
 			Tree *tree = scene_tree->get_scene_tree();
 			if (tree->is_anything_selected()) {
 				tree->grab_focus();
@@ -304,6 +310,9 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_NEW: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
 			String preferred = "";
 			Node *current_edited_scene_root = EditorNode::get_singleton()->get_edited_scene();
 
@@ -319,6 +328,9 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_INSTANCE: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
 			Node *scene = edited_scene;
 
 			if (!scene) {
@@ -332,10 +344,17 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_REPLACE: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
 			create_dialog->popup_create(false, true);
 		} break;
 		case TOOL_ATTACH_SCRIPT: {
 
+			if (!profile_allow_script_editing) {
+				break;
+			}
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			if (selection.empty())
 				break;
@@ -377,6 +396,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_CLEAR_SCRIPT: {
 
+			if (!profile_allow_script_editing) {
+				break;
+			}
+
 			Array selection = editor_selection->get_selected_nodes();
 
 			if (selection.empty())
@@ -404,6 +427,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		case TOOL_MOVE_UP:
 		case TOOL_MOVE_DOWN: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			if (!scene_tree->get_selected())
 				break;
 
@@ -464,6 +491,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_DUPLICATE: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			if (!edited_scene)
 				break;
 
@@ -533,6 +564,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_REPARENT: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			if (!scene_tree->get_selected())
 				break;
 
@@ -559,6 +594,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_MAKE_ROOT: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			List<Node *> nodes = editor_selection->get_selected_node_list();
 			ERR_FAIL_COND(nodes.size() != 1);
 
@@ -616,6 +655,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_MULTI_EDIT: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			Node *root = EditorNode::get_singleton()->get_edited_scene();
 			if (!root)
 				break;
@@ -630,6 +673,10 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 
 		case TOOL_ERASE: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			List<Node *> remove_list = editor_selection->get_selected_node_list();
 
 			if (remove_list.empty())
@@ -649,10 +696,18 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 		} break;
 		case TOOL_MERGE_FROM_SCENE: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			EditorNode::get_singleton()->merge_from_scene();
 		} break;
 		case TOOL_NEW_SCENE_FROM: {
 
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			Node *scene = editor_data->get_edited_scene_root();
 
 			if (!scene) {
@@ -704,6 +759,7 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			new_scene_from_dialog->set_title(TTR("Save New Scene As..."));
 		} break;
 		case TOOL_COPY_NODE_PATH: {
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
@@ -723,6 +779,11 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			EditorNode::get_singleton()->set_visible_editor(EditorNode::EDITOR_SCRIPT);
 		} break;
 		case TOOL_SCENE_EDITABLE_CHILDREN: {
+
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
@@ -740,6 +801,11 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 		} break;
 		case TOOL_SCENE_USE_PLACEHOLDER: {
+
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
@@ -760,6 +826,11 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 		} break;
 		case TOOL_SCENE_MAKE_LOCAL: {
+
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
@@ -782,6 +853,7 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 		} break;
 		case TOOL_SCENE_OPEN: {
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
@@ -792,9 +864,17 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 		} break;
 		case TOOL_SCENE_CLEAR_INHERITANCE: {
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			clear_inherit_confirm->popup_centered_minsize();
 		} break;
 		case TOOL_SCENE_CLEAR_INHERITANCE_CONFIRM: {
+			if (!profile_allow_editing) {
+				break;
+			}
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
@@ -807,14 +887,13 @@ void SceneTreeDock::_tool_selected(int p_tool, bool p_confirm_override) {
 			}
 		} break;
 		case TOOL_SCENE_OPEN_INHERITED: {
+
 			List<Node *> selection = editor_selection->get_selected_node_list();
 			List<Node *>::Element *e = selection.front();
 			if (e) {
 				Node *node = e->get();
-				if (node) {
-					if (node && node->get_scene_inherited_state().is_valid()) {
-						scene_tree->emit_signal("open", node->get_scene_inherited_state()->get_path());
-					}
+				if (node && node->get_scene_inherited_state().is_valid()) {
+					scene_tree->emit_signal("open", node->get_scene_inherited_state()->get_path());
 				}
 			}
 		} break;
@@ -894,6 +973,8 @@ void SceneTreeDock::_notification(int p_what) {
 				break;
 			first_enter = false;
 
+			EditorFeatureProfileManager::get_singleton()->connect("current_feature_profile_changed", this, "_feature_profile_changed");
+
 			CanvasItemEditorPlugin *canvas_item_plugin = Object::cast_to<CanvasItemEditorPlugin>(editor_data->get_editor("2D"));
 			if (canvas_item_plugin) {
 				canvas_item_plugin->get_canvas_item_editor()->connect("item_lock_status_changed", scene_tree, "_update_tree");
@@ -903,6 +984,7 @@ void SceneTreeDock::_notification(int p_what) {
 
 			SpatialEditorPlugin *spatial_editor_plugin = Object::cast_to<SpatialEditorPlugin>(editor_data->get_editor("3D"));
 			spatial_editor_plugin->get_spatial_editor()->connect("item_lock_status_changed", scene_tree, "_update_tree");
+			spatial_editor_plugin->get_spatial_editor()->connect("item_group_status_changed", scene_tree, "_update_tree");
 
 			button_add->set_icon(get_icon("Add", "EditorIcons"));
 			button_instance->set_icon(get_icon("Instance", "EditorIcons"));
@@ -963,7 +1045,7 @@ void SceneTreeDock::_notification(int p_what) {
 
 			Button *button_custom = memnew(Button);
 			node_shortcuts->add_child(button_custom);
-			button_custom->set_text(TTR("Custom Node"));
+			button_custom->set_text(TTR("Other Node"));
 			button_custom->set_icon(get_icon("Add", "EditorIcons"));
 			button_custom->connect("pressed", this, "_tool_selected", make_binds(TOOL_NEW, false));
 
@@ -1640,7 +1722,12 @@ void SceneTreeDock::_delete_confirm() {
 }
 
 void SceneTreeDock::_update_script_button() {
-	if (EditorNode::get_singleton()->get_editor_selection()->get_selection().size() == 0) {
+
+	if (!profile_allow_script_editing) {
+
+		button_create_script->hide();
+		button_clear_script->hide();
+	} else if (EditorNode::get_singleton()->get_editor_selection()->get_selection().size() == 0) {
 		button_create_script->hide();
 		button_clear_script->hide();
 	} else if (EditorNode::get_singleton()->get_editor_selection()->get_selection().size() == 1) {
@@ -1653,7 +1740,7 @@ void SceneTreeDock::_update_script_button() {
 			button_clear_script->show();
 		}
 	} else {
-		button_create_script->show();
+		button_create_script->hide();
 		Array selection = editor_selection->get_selected_nodes();
 		for (int i = 0; i < selection.size(); i++) {
 			Node *n = Object::cast_to<Node>(selection[i]);
@@ -1760,6 +1847,8 @@ void SceneTreeDock::_create() {
 			replace_node(n, newnode);
 		}
 	}
+
+	scene_tree->get_scene_tree()->call_deferred("grab_focus");
 }
 
 void SceneTreeDock::replace_node(Node *p_node, Node *p_by_node, bool p_keep_properties) {
@@ -1801,7 +1890,7 @@ void SceneTreeDock::replace_node(Node *p_node, Node *p_by_node, bool p_keep_prop
 			Object::Connection &c = F->get();
 			if (!(c.flags & Object::CONNECT_PERSIST))
 				continue;
-			newnode->connect(c.signal, c.target, c.method, varray(), Object::CONNECT_PERSIST);
+			newnode->connect(c.signal, c.target, c.method, c.binds, Object::CONNECT_PERSIST);
 		}
 	}
 
@@ -1851,7 +1940,13 @@ void SceneTreeDock::set_selected(Node *p_node, bool p_emit_selected) {
 
 void SceneTreeDock::import_subscene() {
 
-	import_subscene_dialog->popup_centered_ratio();
+	Size2 popup_size = Size2(500, 800) * editor_get_scale();
+	Size2 window_size = get_viewport_rect().size;
+
+	popup_size.x = MIN(window_size.x * 0.8, popup_size.x);
+	popup_size.y = MIN(window_size.y * 0.8, popup_size.y);
+
+	import_subscene_dialog->popup_centered(popup_size);
 }
 
 void SceneTreeDock::_import_subscene() {
@@ -2074,11 +2169,14 @@ void SceneTreeDock::_add_children_to_popup(Object *p_obj, int p_depth) {
 }
 
 void SceneTreeDock::_tree_rmb(const Vector2 &p_menu_pos) {
+
 	if (!EditorNode::get_singleton()->get_edited_scene()) {
 
 		menu->clear();
-		menu->add_icon_shortcut(get_icon("Add", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/add_child_node"), TOOL_NEW);
-		menu->add_icon_shortcut(get_icon("Instance", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/instance_scene"), TOOL_INSTANCE);
+		if (profile_allow_editing) {
+			menu->add_icon_shortcut(get_icon("Add", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/add_child_node"), TOOL_NEW);
+			menu->add_icon_shortcut(get_icon("Instance", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/instance_scene"), TOOL_INSTANCE);
+		}
 
 		menu->set_size(Size2(1, 1));
 		menu->set_position(p_menu_pos);
@@ -2098,80 +2196,101 @@ void SceneTreeDock::_tree_rmb(const Vector2 &p_menu_pos) {
 
 		Node *selected = selection[0];
 
-		subresources.clear();
-		menu_subresources->clear();
-		menu_subresources->set_size(Size2(1, 1));
-		_add_children_to_popup(selection.front()->get(), 0);
-		if (menu->get_item_count() > 0)
-			menu->add_separator();
+		if (profile_allow_editing) {
+			subresources.clear();
+			menu_subresources->clear();
+			menu_subresources->set_size(Size2(1, 1));
+			_add_children_to_popup(selection.front()->get(), 0);
+			if (menu->get_item_count() > 0)
+				menu->add_separator();
 
-		menu->add_icon_shortcut(get_icon("Add", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/add_child_node"), TOOL_NEW);
-		menu->add_icon_shortcut(get_icon("Instance", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/instance_scene"), TOOL_INSTANCE);
-		menu->add_separator();
+			menu->add_icon_shortcut(get_icon("Add", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/add_child_node"), TOOL_NEW);
+			menu->add_icon_shortcut(get_icon("Instance", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/instance_scene"), TOOL_INSTANCE);
+			menu->add_separator();
+		}
 		existing_script = selected->get_script();
 	}
 
-	if (!existing_script.is_valid()) {
-		menu->add_icon_shortcut(get_icon("ScriptCreate", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/attach_script"), TOOL_ATTACH_SCRIPT);
-	}
-	if (selection.size() > 1 || existing_script.is_valid()) {
-		menu->add_icon_shortcut(get_icon("ScriptRemove", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/clear_script"), TOOL_CLEAR_SCRIPT);
-		menu->add_icon_shortcut(get_icon("ScriptExtend", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/extend_script"), TOOL_ATTACH_SCRIPT);
-	}
+	if (profile_allow_script_editing) {
 
-	menu->add_separator();
-	if (selection.size() == 1) {
-		menu->add_icon_shortcut(get_icon("Rename", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/rename"), TOOL_RENAME);
+		if (selection.size() == 1) {
+			if (!existing_script.is_valid()) {
+				menu->add_icon_shortcut(get_icon("ScriptCreate", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/attach_script"), TOOL_ATTACH_SCRIPT);
+			} else {
+				menu->add_icon_shortcut(get_icon("ScriptExtend", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/extend_script"), TOOL_ATTACH_SCRIPT);
+			}
+		}
+		if (selection.size() > 1 || existing_script.is_valid()) {
+			menu->add_icon_shortcut(get_icon("ScriptRemove", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/clear_script"), TOOL_CLEAR_SCRIPT);
+		}
+		menu->add_separator();
 	}
-	menu->add_icon_shortcut(get_icon("Reload", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/change_node_type"), TOOL_REPLACE);
 
-	if (scene_tree->get_selected() != edited_scene) {
-		menu->add_separator();
-		menu->add_icon_shortcut(get_icon("MoveUp", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/move_up"), TOOL_MOVE_UP);
-		menu->add_icon_shortcut(get_icon("MoveDown", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/move_down"), TOOL_MOVE_DOWN);
-		menu->add_icon_shortcut(get_icon("Duplicate", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/duplicate"), TOOL_DUPLICATE);
-		menu->add_icon_shortcut(get_icon("Reparent", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/reparent"), TOOL_REPARENT);
+	if (profile_allow_editing) {
+		if (selection.size() == 1) {
+			menu->add_icon_shortcut(get_icon("Rename", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/rename"), TOOL_RENAME);
+		}
+		menu->add_icon_shortcut(get_icon("Reload", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/change_node_type"), TOOL_REPLACE);
+
+		if (scene_tree->get_selected() != edited_scene) {
+			menu->add_separator();
+			menu->add_icon_shortcut(get_icon("MoveUp", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/move_up"), TOOL_MOVE_UP);
+			menu->add_icon_shortcut(get_icon("MoveDown", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/move_down"), TOOL_MOVE_DOWN);
+			menu->add_icon_shortcut(get_icon("Duplicate", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/duplicate"), TOOL_DUPLICATE);
+			menu->add_icon_shortcut(get_icon("Reparent", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/reparent"), TOOL_REPARENT);
+			menu->add_icon_shortcut(get_icon("NewRoot", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/make_root"), TOOL_MAKE_ROOT);
+		}
 	}
 	if (selection.size() == 1) {
 
-		menu->add_icon_shortcut(get_icon("NewRoot", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/make_root"), TOOL_MAKE_ROOT);
-		menu->add_separator();
-		menu->add_icon_shortcut(get_icon("Blend", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/merge_from_scene"), TOOL_MERGE_FROM_SCENE);
-		menu->add_icon_shortcut(get_icon("CreateNewSceneFrom", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/save_branch_as_scene"), TOOL_NEW_SCENE_FROM);
-		menu->add_separator();
+		if (profile_allow_editing) {
+			menu->add_separator();
+			menu->add_icon_shortcut(get_icon("Blend", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/merge_from_scene"), TOOL_MERGE_FROM_SCENE);
+			menu->add_icon_shortcut(get_icon("CreateNewSceneFrom", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/save_branch_as_scene"), TOOL_NEW_SCENE_FROM);
+			menu->add_separator();
+		}
 		menu->add_icon_shortcut(get_icon("CopyNodePath", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/copy_node_path"), TOOL_COPY_NODE_PATH);
+
 		bool is_external = (selection[0]->get_filename() != "");
 		if (is_external) {
 			bool is_inherited = selection[0]->get_scene_inherited_state() != NULL;
 			bool is_top_level = selection[0]->get_owner() == NULL;
 			if (is_inherited && is_top_level) {
 				menu->add_separator();
-				menu->add_item(TTR("Clear Inheritance"), TOOL_SCENE_CLEAR_INHERITANCE);
+				if (profile_allow_editing) {
+					menu->add_item(TTR("Clear Inheritance"), TOOL_SCENE_CLEAR_INHERITANCE);
+				}
 				menu->add_icon_item(get_icon("Load", "EditorIcons"), TTR("Open in Editor"), TOOL_SCENE_OPEN_INHERITED);
 			} else if (!is_top_level) {
 				menu->add_separator();
 				bool editable = EditorNode::get_singleton()->get_edited_scene()->is_editable_instance(selection[0]);
 				bool placeholder = selection[0]->get_scene_instance_load_placeholder();
-				menu->add_check_item(TTR("Editable Children"), TOOL_SCENE_EDITABLE_CHILDREN);
-				menu->add_check_item(TTR("Load As Placeholder"), TOOL_SCENE_USE_PLACEHOLDER);
-				menu->add_item(TTR("Make Local"), TOOL_SCENE_MAKE_LOCAL);
+				if (profile_allow_editing) {
+					menu->add_check_item(TTR("Editable Children"), TOOL_SCENE_EDITABLE_CHILDREN);
+					menu->add_check_item(TTR("Load As Placeholder"), TOOL_SCENE_USE_PLACEHOLDER);
+					menu->add_item(TTR("Make Local"), TOOL_SCENE_MAKE_LOCAL);
+				}
 				menu->add_icon_item(get_icon("Load", "EditorIcons"), TTR("Open in Editor"), TOOL_SCENE_OPEN);
-				menu->set_item_checked(menu->get_item_idx_from_text(TTR("Editable Children")), editable);
-				menu->set_item_checked(menu->get_item_idx_from_text(TTR("Load As Placeholder")), placeholder);
+				if (profile_allow_editing) {
+					menu->set_item_checked(menu->get_item_idx_from_text(TTR("Editable Children")), editable);
+					menu->set_item_checked(menu->get_item_idx_from_text(TTR("Load As Placeholder")), placeholder);
+				}
 			}
 		}
 	}
 
-	if (selection.size() > 1) {
+	if (profile_allow_editing && selection.size() > 1) {
 		//this is not a commonly used action, it makes no sense for it to be where it was nor always present.
 		menu->add_separator();
 		menu->add_icon_shortcut(get_icon("Rename", "EditorIcons"), ED_GET_SHORTCUT("scene_tree/batch_rename"), TOOL_BATCH_RENAME);
 	}
 	menu->add_separator();
-	menu->add_icon_item(get_icon("Help", "EditorIcons"), TTR("Open documentation"), TOOL_OPEN_DOCUMENTATION);
+	menu->add_icon_item(get_icon("Help", "EditorIcons"), TTR("Open Documentation"), TOOL_OPEN_DOCUMENTATION);
 
-	menu->add_separator();
-	menu->add_icon_shortcut(get_icon("Remove", "EditorIcons"), ED_SHORTCUT("scene_tree/delete", TTR("Delete Node(s)"), KEY_DELETE), TOOL_ERASE);
+	if (profile_allow_editing) {
+		menu->add_separator();
+		menu->add_icon_shortcut(get_icon("Remove", "EditorIcons"), ED_SHORTCUT("scene_tree/delete", TTR("Delete Node(s)"), KEY_DELETE), TOOL_ERASE);
+	}
 	menu->set_size(Size2(1, 1));
 	menu->set_position(p_menu_pos);
 	menu->popup();
@@ -2321,6 +2440,30 @@ void SceneTreeDock::_favorite_root_selected(const String &p_class) {
 	_tool_selected(TOOL_CREATE_FAVORITE, false);
 }
 
+void SceneTreeDock::_feature_profile_changed() {
+
+	Ref<EditorFeatureProfile> profile = EditorFeatureProfileManager::get_singleton()->get_current_profile();
+
+	if (profile.is_valid()) {
+
+		profile_allow_editing = !profile->is_feature_disabled(EditorFeatureProfile::FEATURE_SCENE_TREE);
+		profile_allow_script_editing = !profile->is_feature_disabled(EditorFeatureProfile::FEATURE_SCRIPT);
+
+		button_add->set_visible(profile_allow_editing);
+		button_instance->set_visible(profile_allow_editing);
+		scene_tree->set_can_rename(profile_allow_editing);
+
+	} else {
+		button_add->set_visible(true);
+		button_instance->set_visible(true);
+		scene_tree->set_can_rename(true);
+		profile_allow_editing = true;
+		profile_allow_script_editing = true;
+	}
+
+	_update_script_button();
+}
+
 void SceneTreeDock::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("_tool_selected"), &SceneTreeDock::_tool_selected, DEFVAL(false));
@@ -2353,6 +2496,7 @@ void SceneTreeDock::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_update_script_button"), &SceneTreeDock::_update_script_button);
 	ClassDB::bind_method(D_METHOD("_favorite_root_selected"), &SceneTreeDock::_favorite_root_selected);
 	ClassDB::bind_method(D_METHOD("_update_create_root_dialog"), &SceneTreeDock::_update_create_root_dialog);
+	ClassDB::bind_method(D_METHOD("_feature_profile_changed"), &SceneTreeDock::_feature_profile_changed);
 
 	ClassDB::bind_method(D_METHOD("instance"), &SceneTreeDock::instance);
 
@@ -2372,7 +2516,6 @@ SceneTreeDock::SceneTreeDock(EditorNode *p_editor, Node *p_scene_root, EditorSel
 
 	HBoxContainer *filter_hbc = memnew(HBoxContainer);
 	filter_hbc->add_constant_override("separate", 0);
-	ToolButton *tb;
 
 	ED_SHORTCUT("scene_tree/rename", TTR("Rename"));
 	ED_SHORTCUT("scene_tree/batch_rename", TTR("Batch Rename"), KEY_MASK_CMD | KEY_F2);
@@ -2393,19 +2536,17 @@ SceneTreeDock::SceneTreeDock(EditorNode *p_editor, Node *p_scene_root, EditorSel
 	ED_SHORTCUT("scene_tree/delete_no_confirm", TTR("Delete (No Confirm)"), KEY_MASK_SHIFT | KEY_DELETE);
 	ED_SHORTCUT("scene_tree/delete", TTR("Delete"), KEY_DELETE);
 
-	tb = memnew(ToolButton);
-	tb->connect("pressed", this, "_tool_selected", make_binds(TOOL_NEW, false));
-	tb->set_tooltip(TTR("Add/Create a New Node"));
-	tb->set_shortcut(ED_GET_SHORTCUT("scene_tree/add_child_node"));
-	filter_hbc->add_child(tb);
-	button_add = tb;
+	button_add = memnew(ToolButton);
+	button_add->connect("pressed", this, "_tool_selected", make_binds(TOOL_NEW, false));
+	button_add->set_tooltip(TTR("Add/Create a New Node"));
+	button_add->set_shortcut(ED_GET_SHORTCUT("scene_tree/add_child_node"));
+	filter_hbc->add_child(button_add);
 
-	tb = memnew(ToolButton);
-	tb->connect("pressed", this, "_tool_selected", make_binds(TOOL_INSTANCE, false));
-	tb->set_tooltip(TTR("Instance a scene file as a Node. Creates an inherited scene if no root node exists."));
-	tb->set_shortcut(ED_GET_SHORTCUT("scene_tree/instance_scene"));
-	filter_hbc->add_child(tb);
-	button_instance = tb;
+	button_instance = memnew(ToolButton);
+	button_instance->connect("pressed", this, "_tool_selected", make_binds(TOOL_INSTANCE, false));
+	button_instance->set_tooltip(TTR("Instance a scene file as a Node. Creates an inherited scene if no root node exists."));
+	button_instance->set_shortcut(ED_GET_SHORTCUT("scene_tree/instance_scene"));
+	filter_hbc->add_child(button_instance);
 
 	vbc->add_child(filter_hbc);
 	filter = memnew(LineEdit);
@@ -2415,21 +2556,19 @@ SceneTreeDock::SceneTreeDock(EditorNode *p_editor, Node *p_scene_root, EditorSel
 	filter->add_constant_override("minimum_spaces", 0);
 	filter->connect("text_changed", this, "_filter_changed");
 
-	tb = memnew(ToolButton);
-	tb->connect("pressed", this, "_tool_selected", make_binds(TOOL_ATTACH_SCRIPT, false));
-	tb->set_tooltip(TTR("Attach a new or existing script for the selected node."));
-	tb->set_shortcut(ED_GET_SHORTCUT("scene_tree/attach_script"));
-	filter_hbc->add_child(tb);
-	tb->hide();
-	button_create_script = tb;
-
-	tb = memnew(ToolButton);
-	tb->connect("pressed", this, "_tool_selected", make_binds(TOOL_CLEAR_SCRIPT, false));
-	tb->set_tooltip(TTR("Clear a script for the selected node."));
-	tb->set_shortcut(ED_GET_SHORTCUT("scene_tree/clear_script"));
-	filter_hbc->add_child(tb);
-	button_clear_script = tb;
-	tb->hide();
+	button_create_script = memnew(ToolButton);
+	button_create_script->connect("pressed", this, "_tool_selected", make_binds(TOOL_ATTACH_SCRIPT, false));
+	button_create_script->set_tooltip(TTR("Attach a new or existing script for the selected node."));
+	button_create_script->set_shortcut(ED_GET_SHORTCUT("scene_tree/attach_script"));
+	filter_hbc->add_child(button_create_script);
+	button_create_script->hide();
+
+	button_clear_script = memnew(ToolButton);
+	button_clear_script->connect("pressed", this, "_tool_selected", make_binds(TOOL_CLEAR_SCRIPT, false));
+	button_clear_script->set_tooltip(TTR("Clear a script for the selected node."));
+	button_clear_script->set_shortcut(ED_GET_SHORTCUT("scene_tree/clear_script"));
+	filter_hbc->add_child(button_clear_script);
+	button_clear_script->hide();
 
 	button_hb = memnew(HBoxContainer);
 	vbc->add_child(button_hb);
@@ -2486,6 +2625,7 @@ SceneTreeDock::SceneTreeDock(EditorNode *p_editor, Node *p_scene_root, EditorSel
 	add_child(rename_dialog);
 
 	script_create_dialog = memnew(ScriptCreateDialog);
+	script_create_dialog->set_inheritance_base_type("Node");
 	add_child(script_create_dialog);
 	script_create_dialog->connect("script_created", this, "_script_created");
 
@@ -2537,6 +2677,9 @@ SceneTreeDock::SceneTreeDock(EditorNode *p_editor, Node *p_scene_root, EditorSel
 	set_process_input(true);
 	set_process(true);
 
+	profile_allow_editing = true;
+	profile_allow_script_editing = true;
+
 	EDITOR_DEF("interface/editors/show_scene_tree_root_selection", true);
 	EDITOR_DEF("_use_favorites_root_selection", false);
 }
diff --git a/editor/scene_tree_dock.h b/editor/scene_tree_dock.h
index 653d0a4eca..e66525d721 100644
--- a/editor/scene_tree_dock.h
+++ b/editor/scene_tree_dock.h
@@ -212,6 +212,11 @@ class SceneTreeDock : public VBoxContainer {
 	void _update_create_root_dialog();
 	void _favorite_root_selected(const String &p_class);
 
+	void _feature_profile_changed();
+
+	bool profile_allow_editing;
+	bool profile_allow_script_editing;
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
diff --git a/editor/scene_tree_editor.cpp b/editor/scene_tree_editor.cpp
index 8cfc6d4e8e..62845bfb9b 100644
--- a/editor/scene_tree_editor.cpp
+++ b/editor/scene_tree_editor.cpp
@@ -48,6 +48,9 @@ Node *SceneTreeEditor::get_scene_node() {
 
 void SceneTreeEditor::_cell_button_pressed(Object *p_item, int p_column, int p_id) {
 
+	if (connect_to_script_mode) {
+		return; //dont do anything in this mode
+	}
 	TreeItem *item = Object::cast_to<TreeItem>(p_item);
 	ERR_FAIL_COND(!item);
 
@@ -85,12 +88,18 @@ void SceneTreeEditor::_cell_button_pressed(Object *p_item, int p_column, int p_i
 		}
 		undo_redo->commit_action();
 	} else if (p_id == BUTTON_LOCK) {
+		undo_redo->create_action(TTR("Unlock Node"));
 
 		if (n->is_class("CanvasItem") || n->is_class("Spatial")) {
-			n->set_meta("_edit_lock_", Variant());
-			_update_tree();
-			emit_signal("node_changed");
+
+			undo_redo->add_do_method(n, "remove_meta", "_edit_lock_");
+			undo_redo->add_undo_method(n, "set_meta", "_edit_lock_", true);
+			undo_redo->add_do_method(this, "_update_tree", Variant());
+			undo_redo->add_undo_method(this, "_update_tree", Variant());
+			undo_redo->add_do_method(this, "emit_signal", "node_changed");
+			undo_redo->add_undo_method(this, "emit_signal", "node_changed");
 		}
+		undo_redo->commit_action();
 	} else if (p_id == BUTTON_PIN) {
 
 		if (n->is_class("AnimationPlayer")) {
@@ -99,11 +108,18 @@ void SceneTreeEditor::_cell_button_pressed(Object *p_item, int p_column, int p_i
 		}
 
 	} else if (p_id == BUTTON_GROUP) {
-		if (n->is_class("CanvasItem")) {
-			n->set_meta("_edit_group_", Variant());
-			_update_tree();
-			emit_signal("node_changed");
+		undo_redo->create_action(TTR("Button Group"));
+
+		if (n->is_class("CanvasItem") || n->is_class("Spatial")) {
+
+			undo_redo->add_do_method(n, "remove_meta", "_edit_group_");
+			undo_redo->add_undo_method(n, "set_meta", "_edit_group_", true);
+			undo_redo->add_do_method(this, "_update_tree", Variant());
+			undo_redo->add_undo_method(this, "_update_tree", Variant());
+			undo_redo->add_do_method(this, "emit_signal", "node_changed");
+			undo_redo->add_undo_method(this, "emit_signal", "node_changed");
 		}
+		undo_redo->commit_action();
 	} else if (p_id == BUTTON_WARNING) {
 
 		String config_err = n->get_configuration_warning();
@@ -190,7 +206,25 @@ bool SceneTreeEditor::_add_nodes(Node *p_node, TreeItem *p_parent) {
 	item->set_icon(0, icon);
 	item->set_metadata(0, p_node->get_path());
 
-	if (part_of_subscene) {
+	if (connect_to_script_mode) {
+		Color accent = get_color("accent_color", "Editor");
+
+		if (!p_node->get_script().is_null()) {
+			//has script
+			item->add_button(0, get_icon("Script", "EditorIcons"), BUTTON_SCRIPT);
+		} else {
+			//has no script
+			item->set_custom_color(0, get_color("disabled_font_color", "Editor"));
+			item->set_selectable(0, false);
+			accent.a *= 0.7;
+		}
+
+		if (marked.has(p_node)) {
+			item->set_text(0, String(p_node->get_name()) + " " + TTR("(Connecting From)"));
+
+			item->set_custom_color(0, accent);
+		}
+	} else if (part_of_subscene) {
 
 		//item->set_selectable(0,marked_selectable);
 		if (valid_types.size() == 0) {
@@ -199,7 +233,9 @@ bool SceneTreeEditor::_add_nodes(Node *p_node, TreeItem *p_parent) {
 
 	} else if (marked.has(p_node)) {
 
-		item->set_selectable(0, marked_selectable);
+		if (!connect_to_script_mode) {
+			item->set_selectable(0, marked_selectable);
+		}
 		item->set_custom_color(0, get_color("error_color", "Editor"));
 	} else if (!marked_selectable && !marked_children_selectable) {
 
@@ -244,7 +280,7 @@ bool SceneTreeEditor::_add_nodes(Node *p_node, TreeItem *p_parent) {
 		item->set_tooltip(0, String(p_node->get_name()) + "\n" + TTR("Type:") + " " + p_node->get_class());
 	}
 
-	if (can_open_instance) {
+	if (can_open_instance && undo_redo) { //Show buttons only when necessary(SceneTreeDock) to avoid crashes
 
 		if (!p_node->is_connected("script_changed", this, "_node_script_changed"))
 			p_node->connect("script_changed", this, "_node_script_changed", varray(p_node));
@@ -280,6 +316,10 @@ bool SceneTreeEditor::_add_nodes(Node *p_node, TreeItem *p_parent) {
 			if (is_locked)
 				item->add_button(0, get_icon("Lock", "EditorIcons"), BUTTON_LOCK, false, TTR("Node is locked.\nClick to unlock it."));
 
+			bool is_grouped = p_node->has_meta("_edit_group_");
+			if (is_grouped)
+				item->add_button(0, get_icon("Group", "EditorIcons"), BUTTON_GROUP, false, TTR("Children are not selectable.\nClick to make selectable."));
+
 			bool v = p_node->call("is_visible");
 			if (v)
 				item->add_button(0, get_icon("GuiVisibilityVisible", "EditorIcons"), BUTTON_VISIBILITY, false, TTR("Toggle Visibility"));
@@ -620,6 +660,7 @@ void SceneTreeEditor::set_selected(Node *p_node, bool p_emit_selected) {
 		item->set_as_cursor(0);
 		selected = p_node;
 		tree->ensure_cursor_is_visible();
+
 	} else {
 		if (!p_node)
 			selected = NULL;
@@ -974,6 +1015,11 @@ void SceneTreeEditor::_warning_changed(Node *p_for_node) {
 	update_timer->start();
 }
 
+void SceneTreeEditor::set_connect_to_script_mode(bool p_enable) {
+	connect_to_script_mode = p_enable;
+	update_tree();
+}
+
 void SceneTreeEditor::_bind_methods() {
 
 	ClassDB::bind_method("_tree_changed", &SceneTreeEditor::_tree_changed);
@@ -1016,6 +1062,7 @@ void SceneTreeEditor::_bind_methods() {
 
 SceneTreeEditor::SceneTreeEditor(bool p_label, bool p_can_rename, bool p_can_open_instance) {
 
+	connect_to_script_mode = false;
 	undo_redo = NULL;
 	tree_dirty = true;
 	selected = NULL;
@@ -1091,22 +1138,17 @@ SceneTreeEditor::~SceneTreeEditor() {
 
 void SceneTreeDialog::_notification(int p_what) {
 
-	if (p_what == NOTIFICATION_ENTER_TREE) {
-		connect("confirmed", this, "_select");
-	}
-
-	if (p_what == NOTIFICATION_EXIT_TREE) {
-		disconnect("confirmed", this, "_select");
-	}
-	if (p_what == NOTIFICATION_DRAW) {
-
-		RID ci = get_canvas_item();
-		get_stylebox("panel", "PopupMenu")->draw(ci, Rect2(Point2(), get_size()));
-	}
-
-	if (p_what == NOTIFICATION_VISIBILITY_CHANGED && is_visible_in_tree()) {
-
-		tree->update_tree();
+	switch (p_what) {
+		case NOTIFICATION_ENTER_TREE: {
+			connect("confirmed", this, "_select");
+		} break;
+		case NOTIFICATION_EXIT_TREE: {
+			disconnect("confirmed", this, "_select");
+		} break;
+		case NOTIFICATION_VISIBILITY_CHANGED: {
+			if (is_visible_in_tree())
+				tree->update_tree();
+		} break;
 	}
 }
 
@@ -1135,8 +1177,6 @@ SceneTreeDialog::SceneTreeDialog() {
 
 	tree = memnew(SceneTreeEditor(false, false, true));
 	add_child(tree);
-	//set_child_rect(tree);
-
 	tree->get_scene_tree()->connect("item_activated", this, "_select");
 }
 
diff --git a/editor/scene_tree_editor.h b/editor/scene_tree_editor.h
index aa4d4dd58a..9158c4aa48 100644
--- a/editor/scene_tree_editor.h
+++ b/editor/scene_tree_editor.h
@@ -67,6 +67,8 @@ class SceneTreeEditor : public Control {
 	AcceptDialog *error;
 	AcceptDialog *warning;
 
+	bool connect_to_script_mode;
+
 	int blocked;
 
 	void _compute_hash(Node *p_node, uint64_t &hash);
@@ -151,6 +153,8 @@ public:
 
 	void update_tree() { _update_tree(); }
 
+	void set_connect_to_script_mode(bool p_enable);
+
 	Tree *get_scene_tree() { return tree; }
 
 	SceneTreeEditor(bool p_label = true, bool p_can_rename = false, bool p_can_open_instance = false);
diff --git a/editor/script_create_dialog.cpp b/editor/script_create_dialog.cpp
index 5ab0efaee3..751ae4fcf7 100644
--- a/editor/script_create_dialog.cpp
+++ b/editor/script_create_dialog.cpp
@@ -34,6 +34,7 @@
 #include "core/os/file_access.h"
 #include "core/project_settings.h"
 #include "core/script_language.h"
+#include "editor/create_dialog.h"
 #include "editor/editor_node.h"
 #include "editor/editor_scale.h"
 #include "editor_file_system.h"
@@ -45,11 +46,28 @@ void ScriptCreateDialog::_notification(int p_what) {
 		case NOTIFICATION_ENTER_TREE: {
 			path_button->set_icon(get_icon("Folder", "EditorIcons"));
 			parent_browse_button->set_icon(get_icon("Folder", "EditorIcons"));
+			parent_search_button->set_icon(get_icon("ClassList", "EditorIcons"));
 			status_panel->add_style_override("panel", get_stylebox("bg", "Tree"));
 		} break;
 	}
 }
 
+void ScriptCreateDialog::_path_hbox_sorted() {
+	if (is_visible()) {
+		int filename_start_pos = initial_bp.find_last("/") + 1;
+		int filename_end_pos = initial_bp.length();
+
+		file_path->select(filename_start_pos, filename_end_pos);
+
+		// First set cursor to the end of line to scroll LineEdit view
+		// to the right and then set the actual cursor position.
+		file_path->set_cursor_position(file_path->get_text().length());
+		file_path->set_cursor_position(filename_start_pos);
+
+		file_path->grab_focus();
+	}
+}
+
 bool ScriptCreateDialog::_can_be_built_in() {
 	return (supports_built_in && built_in_enabled);
 }
@@ -77,13 +95,22 @@ void ScriptCreateDialog::config(const String &p_base_name, const String &p_base_
 	_path_changed(file_path->get_text());
 }
 
+void ScriptCreateDialog::set_inheritance_base_type(const String &p_base) {
+
+	base_type = p_base;
+}
+
 bool ScriptCreateDialog::_validate(const String &p_string) {
 
 	if (p_string.length() == 0)
 		return false;
 
-	String path_chars = "\"res://";
-	bool is_val_path = ScriptServer::get_language(language_menu->get_selected())->can_inherit_from_file();
+	if (ScriptServer::get_language(language_menu->get_selected())->can_inherit_from_file() && p_string.is_quoted()) {
+		String p = p_string.substr(1, p_string.length() - 2);
+		if (_validate_path(p, true) == "")
+			return true;
+	}
+
 	for (int i = 0; i < p_string.length(); i++) {
 
 		if (i == 0) {
@@ -91,17 +118,7 @@ bool ScriptCreateDialog::_validate(const String &p_string) {
 				return false; // no start with number plz
 		}
 
-		if (i == p_string.length() - 1 && is_val_path)
-			return p_string[i] == '\"';
-
-		if (is_val_path && i < path_chars.length()) {
-			if (p_string[i] != path_chars[i])
-				is_val_path = false;
-			else
-				continue;
-		}
-
-		bool valid_char = (p_string[i] >= '0' && p_string[i] <= '9') || (p_string[i] >= 'a' && p_string[i] <= 'z') || (p_string[i] >= 'A' && p_string[i] <= 'Z') || p_string[i] == '_' || p_string[i] == '-' || (is_val_path && (p_string[i] == '/' || p_string[i] == '.'));
+		bool valid_char = (p_string[i] >= '0' && p_string[i] <= '9') || (p_string[i] >= 'a' && p_string[i] <= 'z') || (p_string[i] >= 'A' && p_string[i] <= 'Z') || p_string[i] == '_' || p_string[i] == '-';
 
 		if (!valid_char)
 			return false;
@@ -110,6 +127,70 @@ bool ScriptCreateDialog::_validate(const String &p_string) {
 	return true;
 }
 
+String ScriptCreateDialog::_validate_path(const String &p_path, bool p_file_must_exist) {
+
+	String p = p_path.strip_edges();
+
+	if (p == "") return TTR("Path is empty.");
+	if (p.get_file().get_basename() == "") return TTR("Filename is empty.");
+
+	p = ProjectSettings::get_singleton()->localize_path(p);
+	if (!p.begins_with("res://")) return TTR("Path is not local.");
+
+	DirAccess *d = DirAccess::create(DirAccess::ACCESS_RESOURCES);
+	if (d->change_dir(p.get_base_dir()) != OK) {
+		memdelete(d);
+		return TTR("Invalid base path.");
+	}
+	memdelete(d);
+
+	/* Does file already exist */
+	DirAccess *f = DirAccess::create(DirAccess::ACCESS_RESOURCES);
+	if (f->dir_exists(p)) {
+		memdelete(f);
+		return TTR("A directory with the same name exists.");
+	} else if (p_file_must_exist && !f->file_exists(p)) {
+		memdelete(f);
+		return TTR("File does not exist.");
+	}
+	memdelete(f);
+
+	/* Check file extension */
+	String extension = p.get_extension();
+	List<String> extensions;
+
+	// get all possible extensions for script
+	for (int l = 0; l < language_menu->get_item_count(); l++) {
+		ScriptServer::get_language(l)->get_recognized_extensions(&extensions);
+	}
+
+	bool found = false;
+	bool match = false;
+	int index = 0;
+	for (List<String>::Element *E = extensions.front(); E; E = E->next()) {
+		if (E->get().nocasecmp_to(extension) == 0) {
+			//FIXME (?) - changing language this way doesn't update controls, needs rework
+			//language_menu->select(index); // change Language option by extension
+			found = true;
+			if (E->get() == ScriptServer::get_language(language_menu->get_selected())->get_extension()) {
+				match = true;
+			}
+			break;
+		}
+		index++;
+	}
+
+	if (!found) return TTR("Invalid extension.");
+	if (!match) return TTR("Wrong extension chosen.");
+
+	/* Let ScriptLanguage do custom validation */
+	String path_error = ScriptServer::get_language(language_menu->get_selected())->validate_path(p);
+	if (path_error != "") return path_error;
+
+	/* All checks passed */
+	return "";
+}
+
 void ScriptCreateDialog::_class_name_changed(const String &p_name) {
 
 	if (_validate(class_name->get_text())) {
@@ -322,7 +403,7 @@ void ScriptCreateDialog::_browse_path(bool browse_parent, bool p_save) {
 
 	if (p_save) {
 		file_browse->set_mode(EditorFileDialog::MODE_SAVE_FILE);
-		file_browse->set_title(TTR("Open Script/Choose Location"));
+		file_browse->set_title(TTR("Open Script / Choose Location"));
 		file_browse->get_ok()->set_text(TTR("Open"));
 	} else {
 		file_browse->set_mode(EditorFileDialog::MODE_OPEN_FILE);
@@ -362,101 +443,37 @@ void ScriptCreateDialog::_file_selected(const String &p_file) {
 	}
 }
 
-void ScriptCreateDialog::_path_changed(const String &p_path) {
+void ScriptCreateDialog::_create() {
 
-	is_path_valid = false;
-	is_new_script_created = true;
-	String p = p_path.strip_edges();
+	parent_name->set_text(select_class->get_selected_type());
+}
 
-	if (p == "") {
-		_msg_path_valid(false, TTR("Path is empty"));
-		_update_dialog();
-		return;
-	}
+void ScriptCreateDialog::_browse_class_in_tree() {
 
-	if (p.get_file().get_basename() == "") {
-		_msg_path_valid(false, TTR("Filename is empty"));
-		_update_dialog();
-		return;
-	}
+	select_class->set_base_type(base_type);
+	select_class->popup_create(true);
+}
 
-	p = ProjectSettings::get_singleton()->localize_path(p);
-	if (!p.begins_with("res://")) {
-		_msg_path_valid(false, TTR("Path is not local"));
-		_update_dialog();
-		return;
-	}
+void ScriptCreateDialog::_path_changed(const String &p_path) {
 
-	DirAccess *d = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-	if (d->change_dir(p.get_base_dir()) != OK) {
-		_msg_path_valid(false, TTR("Invalid base path"));
-		memdelete(d);
+	is_path_valid = false;
+	is_new_script_created = true;
+
+	String path_error = _validate_path(p_path, false);
+	if (path_error != "") {
+		_msg_path_valid(false, path_error);
 		_update_dialog();
 		return;
 	}
-	memdelete(d);
 
 	/* Does file already exist */
-
 	DirAccess *f = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-	if (f->dir_exists(p)) {
-		is_new_script_created = false;
-		is_path_valid = false;
-		_msg_path_valid(false, TTR("Directory of the same name exists"));
-	} else if (f->file_exists(p)) {
+	String p = ProjectSettings::get_singleton()->localize_path(p_path.strip_edges());
+	if (f->file_exists(p)) {
 		is_new_script_created = false;
-		is_path_valid = true;
-		_msg_path_valid(true, TTR("File exists, will be reused"));
+		_msg_path_valid(true, TTR("File exists, it will be reused."));
 	}
 	memdelete(f);
-	_update_dialog();
-
-	/* Check file extension */
-
-	String extension = p.get_extension();
-	List<String> extensions;
-
-	// get all possible extensions for script
-	for (int l = 0; l < language_menu->get_item_count(); l++) {
-		ScriptServer::get_language(l)->get_recognized_extensions(&extensions);
-	}
-
-	bool found = false;
-	bool match = false;
-	int index = 0;
-	for (List<String>::Element *E = extensions.front(); E; E = E->next()) {
-		if (E->get().nocasecmp_to(extension) == 0) {
-			//FIXME (?) - changing language this way doesn't update controls, needs rework
-			//language_menu->select(index); // change Language option by extension
-			found = true;
-			if (E->get() == ScriptServer::get_language(language_menu->get_selected())->get_extension()) {
-				match = true;
-			}
-			break;
-		}
-		index++;
-	}
-
-	if (!found) {
-		_msg_path_valid(false, TTR("Invalid extension"));
-		_update_dialog();
-		return;
-	}
-
-	if (!match) {
-		_msg_path_valid(false, TTR("Wrong extension chosen"));
-		_update_dialog();
-		return;
-	}
-
-	String path_error = ScriptServer::get_language(language_menu->get_selected())->validate_path(p);
-	if (path_error != "") {
-		_msg_path_valid(false, path_error);
-		_update_dialog();
-		return;
-	}
-
-	/* All checks passed */
 
 	is_path_valid = true;
 	_update_dialog();
@@ -494,22 +511,20 @@ void ScriptCreateDialog::_update_dialog() {
 
 	// Is Script Valid (order from top to bottom)
 	get_ok()->set_disabled(true);
-	if (!is_built_in) {
-		if (!is_path_valid) {
-			_msg_script_valid(false, TTR("Invalid Path"));
-			script_ok = false;
-		}
+	if (!is_built_in && !is_path_valid) {
+		_msg_script_valid(false, TTR("Invalid path."));
+		script_ok = false;
 	}
 	if (has_named_classes && (is_new_script_created && !is_class_name_valid)) {
-		_msg_script_valid(false, TTR("Invalid class name"));
+		_msg_script_valid(false, TTR("Invalid class name."));
 		script_ok = false;
 	}
-	if (!is_parent_name_valid) {
-		_msg_script_valid(false, TTR("Invalid inherited parent name or path"));
+	if (!is_parent_name_valid && is_new_script_created) {
+		_msg_script_valid(false, TTR("Invalid inherited parent name or path."));
 		script_ok = false;
 	}
 	if (script_ok) {
-		_msg_script_valid(true, TTR("Script valid"));
+		_msg_script_valid(true, TTR("Script is valid."));
 		get_ok()->set_disabled(false);
 	}
 
@@ -552,25 +567,24 @@ void ScriptCreateDialog::_update_dialog() {
 		}
 	}
 
-	if (!_can_be_built_in())
-		internal->set_pressed(false);
-
 	/* Is Script created or loaded from existing file */
 
 	if (is_built_in) {
 		get_ok()->set_text(TTR("Create"));
 		parent_name->set_editable(true);
 		parent_browse_button->set_disabled(false);
-		internal->set_disabled(!_can_be_built_in());
-		_msg_path_valid(true, TTR("Built-in script (into scene file)"));
+		internal->set_visible(_can_be_built_in());
+		internal_label->set_visible(_can_be_built_in());
+		_msg_path_valid(true, TTR("Built-in script (into scene file)."));
 	} else if (is_new_script_created) {
 		// New Script Created
 		get_ok()->set_text(TTR("Create"));
 		parent_name->set_editable(true);
 		parent_browse_button->set_disabled(false);
-		internal->set_disabled(!_can_be_built_in());
+		internal->set_visible(_can_be_built_in());
+		internal_label->set_visible(_can_be_built_in());
 		if (is_path_valid) {
-			_msg_path_valid(true, TTR("Create new script file"));
+			_msg_path_valid(true, TTR("Will create a new script file."));
 		}
 	} else {
 		// Script Loaded
@@ -579,13 +593,14 @@ void ScriptCreateDialog::_update_dialog() {
 		parent_browse_button->set_disabled(true);
 		internal->set_disabled(!_can_be_built_in());
 		if (is_path_valid) {
-			_msg_path_valid(true, TTR("Load existing script file"));
+			_msg_path_valid(true, TTR("Will load an existing script file."));
 		}
 	}
 }
 
 void ScriptCreateDialog::_bind_methods() {
 
+	ClassDB::bind_method("_path_hbox_sorted", &ScriptCreateDialog::_path_hbox_sorted);
 	ClassDB::bind_method("_class_name_changed", &ScriptCreateDialog::_class_name_changed);
 	ClassDB::bind_method("_parent_name_changed", &ScriptCreateDialog::_parent_name_changed);
 	ClassDB::bind_method("_lang_changed", &ScriptCreateDialog::_lang_changed);
@@ -595,6 +610,8 @@ void ScriptCreateDialog::_bind_methods() {
 	ClassDB::bind_method("_path_changed", &ScriptCreateDialog::_path_changed);
 	ClassDB::bind_method("_path_entered", &ScriptCreateDialog::_path_entered);
 	ClassDB::bind_method("_template_changed", &ScriptCreateDialog::_template_changed);
+	ClassDB::bind_method("_create", &ScriptCreateDialog::_create);
+	ClassDB::bind_method("_browse_class_in_tree", &ScriptCreateDialog::_browse_class_in_tree);
 
 	ClassDB::bind_method(D_METHOD("config", "inherits", "path", "built_in_enabled"), &ScriptCreateDialog::config, DEFVAL(true));
 
@@ -639,32 +656,17 @@ ScriptCreateDialog::ScriptCreateDialog() {
 	status_panel->add_style_override("panel", EditorNode::get_singleton()->get_gui_base()->get_stylebox("bg", "Tree"));
 	status_panel->add_child(vb);
 
-	/* Margins */
+	/* Spacing */
 
-	Control *empty_h = memnew(Control);
-	empty_h->set_name("empty_h"); //duplicate() doesn't like nodes without a name
-	empty_h->set_h_size_flags(Control::SIZE_EXPAND_FILL);
-	empty_h->set_v_size_flags(Control::SIZE_EXPAND_FILL);
-	empty_h->set_custom_minimum_size(Size2(0, 10 * EDSCALE));
-	Control *empty_v = memnew(Control);
-	empty_v->set_name("empty_v");
-	empty_v->set_h_size_flags(Control::SIZE_EXPAND_FILL);
-	empty_v->set_v_size_flags(Control::SIZE_EXPAND_FILL);
-	empty_v->set_custom_minimum_size(Size2(10, 0 * EDSCALE));
+	Control *spacing = memnew(Control);
+	spacing->set_custom_minimum_size(Size2(0, 10 * EDSCALE));
 
 	vb = memnew(VBoxContainer);
-	vb->add_child(empty_h->duplicate());
 	vb->add_child(gc);
-	vb->add_child(empty_h->duplicate());
+	vb->add_child(spacing);
 	vb->add_child(status_panel);
-	vb->add_child(empty_h->duplicate());
 	hb = memnew(HBoxContainer);
-	hb->add_child(empty_v->duplicate());
 	hb->add_child(vb);
-	hb->add_child(empty_v->duplicate());
-
-	memdelete(empty_h);
-	memdelete(empty_v);
 
 	add_child(hb);
 
@@ -673,8 +675,7 @@ ScriptCreateDialog::ScriptCreateDialog() {
 	language_menu = memnew(OptionButton);
 	language_menu->set_custom_minimum_size(Size2(250, 0) * EDSCALE);
 	language_menu->set_h_size_flags(SIZE_EXPAND_FILL);
-	l = memnew(Label);
-	l->set_text(TTR("Language"));
+	l = memnew(Label(TTR("Language")));
 	l->set_align(Label::ALIGN_RIGHT);
 	gc->add_child(l);
 	gc->add_child(language_menu);
@@ -707,18 +708,23 @@ ScriptCreateDialog::ScriptCreateDialog() {
 
 	/* Inherits */
 
+	base_type = "Object";
+
 	hb = memnew(HBoxContainer);
 	hb->set_h_size_flags(SIZE_EXPAND_FILL);
 	parent_name = memnew(LineEdit);
 	parent_name->connect("text_changed", this, "_parent_name_changed");
 	parent_name->set_h_size_flags(SIZE_EXPAND_FILL);
 	hb->add_child(parent_name);
+	parent_search_button = memnew(Button);
+	parent_search_button->set_flat(true);
+	parent_search_button->connect("pressed", this, "_browse_class_in_tree");
+	hb->add_child(parent_search_button);
 	parent_browse_button = memnew(Button);
 	parent_browse_button->set_flat(true);
 	parent_browse_button->connect("pressed", this, "_browse_path", varray(true, false));
 	hb->add_child(parent_browse_button);
-	l = memnew(Label);
-	l->set_text(TTR("Inherits"));
+	l = memnew(Label(TTR("Inherits")));
 	l->set_align(Label::ALIGN_RIGHT);
 	gc->add_child(l);
 	gc->add_child(hb);
@@ -729,8 +735,7 @@ ScriptCreateDialog::ScriptCreateDialog() {
 	class_name = memnew(LineEdit);
 	class_name->connect("text_changed", this, "_class_name_changed");
 	class_name->set_h_size_flags(SIZE_EXPAND_FILL);
-	l = memnew(Label);
-	l->set_text(TTR("Class Name"));
+	l = memnew(Label(TTR("Class Name")));
 	l->set_align(Label::ALIGN_RIGHT);
 	gc->add_child(l);
 	gc->add_child(class_name);
@@ -738,8 +743,7 @@ ScriptCreateDialog::ScriptCreateDialog() {
 	/* Templates */
 
 	template_menu = memnew(OptionButton);
-	l = memnew(Label);
-	l->set_text(TTR("Template"));
+	l = memnew(Label(TTR("Template")));
 	l->set_align(Label::ALIGN_RIGHT);
 	gc->add_child(l);
 	gc->add_child(template_menu);
@@ -748,18 +752,18 @@ ScriptCreateDialog::ScriptCreateDialog() {
 	/* Built-in Script */
 
 	internal = memnew(CheckButton);
+	internal->set_h_size_flags(0);
 	internal->connect("pressed", this, "_built_in_pressed");
-	hb = memnew(HBoxContainer);
-	hb->add_child(internal);
-	l = memnew(Label);
-	l->set_text(TTR("Built-in Script"));
-	l->set_align(Label::ALIGN_RIGHT);
-	gc->add_child(l);
-	gc->add_child(hb);
+	internal_label = memnew(Label(TTR("Built-in Script")));
+	internal_label->set_text(TTR("Built-in Script"));
+	internal_label->set_align(Label::ALIGN_RIGHT);
+	gc->add_child(internal_label);
+	gc->add_child(internal);
 
 	/* Path */
 
 	hb = memnew(HBoxContainer);
+	hb->connect("sort_children", this, "_path_hbox_sorted");
 	file_path = memnew(LineEdit);
 	file_path->connect("text_changed", this, "_path_changed");
 	file_path->connect("text_entered", this, "_path_entered");
@@ -769,14 +773,17 @@ ScriptCreateDialog::ScriptCreateDialog() {
 	path_button->set_flat(true);
 	path_button->connect("pressed", this, "_browse_path", varray(false, true));
 	hb->add_child(path_button);
-	l = memnew(Label);
-	l->set_text(TTR("Path"));
+	l = memnew(Label(TTR("Path")));
 	l->set_align(Label::ALIGN_RIGHT);
 	gc->add_child(l);
 	gc->add_child(hb);
 
 	/* Dialog Setup */
 
+	select_class = memnew(CreateDialog);
+	select_class->connect("create", this, "_create");
+	add_child(select_class);
+
 	file_browse = memnew(EditorFileDialog);
 	file_browse->connect("file_selected", this, "_file_selected");
 	file_browse->set_mode(EditorFileDialog::MODE_OPEN_FILE);
diff --git a/editor/script_create_dialog.h b/editor/script_create_dialog.h
index 15e838d69f..c6dba78f56 100644
--- a/editor/script_create_dialog.h
+++ b/editor/script_create_dialog.h
@@ -40,6 +40,8 @@
 #include "scene/gui/option_button.h"
 #include "scene/gui/panel_container.h"
 
+class CreateDialog;
+
 class ScriptCreateDialog : public ConfirmationDialog {
 	GDCLASS(ScriptCreateDialog, ConfirmationDialog);
 
@@ -49,14 +51,17 @@ class ScriptCreateDialog : public ConfirmationDialog {
 	PanelContainer *status_panel;
 	LineEdit *parent_name;
 	Button *parent_browse_button;
+	Button *parent_search_button;
 	OptionButton *language_menu;
 	OptionButton *template_menu;
 	LineEdit *file_path;
 	Button *path_button;
 	EditorFileDialog *file_browse;
 	CheckButton *internal;
+	Label *internal_label;
 	VBoxContainer *path_vb;
 	AcceptDialog *alert;
+	CreateDialog *select_class;
 	bool path_valid;
 	bool create_new;
 	bool is_browsing_parent;
@@ -74,18 +79,23 @@ class ScriptCreateDialog : public ConfirmationDialog {
 	bool re_check_path;
 	String script_template;
 	Vector<String> template_list;
+	String base_type;
 
+	void _path_hbox_sorted();
 	bool _can_be_built_in();
 	void _path_changed(const String &p_path = String());
 	void _path_entered(const String &p_path = String());
 	void _lang_changed(int l = 0);
 	void _built_in_pressed();
 	bool _validate(const String &p_string);
+	String _validate_path(const String &p_path, bool p_file_must_exist);
 	void _class_name_changed(const String &p_name);
 	void _parent_name_changed(const String &p_parent);
 	void _template_changed(int p_template = 0);
 	void _browse_path(bool browse_parent, bool p_save);
 	void _file_selected(const String &p_file);
+	void _create();
+	void _browse_class_in_tree();
 	virtual void ok_pressed();
 	void _create_new();
 	void _load_exist();
@@ -99,6 +109,7 @@ protected:
 
 public:
 	void config(const String &p_base_name, const String &p_base_path, bool p_built_in_enabled = true);
+	void set_inheritance_base_type(const String &p_base);
 	ScriptCreateDialog();
 };
 
diff --git a/editor/script_editor_debugger.cpp b/editor/script_editor_debugger.cpp
index dda46d2414..1da8bf874c 100644
--- a/editor/script_editor_debugger.cpp
+++ b/editor/script_editor_debugger.cpp
@@ -209,8 +209,8 @@ void ScriptEditorDebugger::debug_next() {
 	Array msg;
 	msg.push_back("next");
 	ppeer->put_var(msg);
+	_clear_execution();
 	stack_dump->clear();
-	inspector->edit(NULL);
 }
 void ScriptEditorDebugger::debug_step() {
 
@@ -221,8 +221,8 @@ void ScriptEditorDebugger::debug_step() {
 	Array msg;
 	msg.push_back("step");
 	ppeer->put_var(msg);
+	_clear_execution();
 	stack_dump->clear();
-	inspector->edit(NULL);
 }
 
 void ScriptEditorDebugger::debug_break() {
@@ -245,6 +245,7 @@ void ScriptEditorDebugger::debug_continue() {
 	OS::get_singleton()->enable_for_stealing_focus(EditorNode::get_singleton()->get_child_process_id());
 
 	Array msg;
+	_clear_execution();
 	msg.push_back("continue");
 	ppeer->put_var(msg);
 }
@@ -303,12 +304,49 @@ void ScriptEditorDebugger::_scene_tree_rmb_selected(const Vector2 &p_position) {
 }
 
 void ScriptEditorDebugger::_file_selected(const String &p_file) {
-	if (file_dialog->get_mode() == EditorFileDialog::MODE_SAVE_FILE) {
+	if (file_dialog_mode == SAVE_NODE) {
+
 		Array msg;
 		msg.push_back("save_node");
 		msg.push_back(inspected_object_id);
 		msg.push_back(p_file);
 		ppeer->put_var(msg);
+	} else if (file_dialog_mode == SAVE_CSV) {
+
+		Error err;
+		FileAccessRef file = FileAccess::open(p_file, FileAccess::WRITE, &err);
+
+		if (err != OK) {
+			ERR_PRINTS("Failed to open " + p_file);
+			return;
+		}
+		Vector<String> line;
+		line.resize(Performance::MONITOR_MAX);
+
+		// signatures
+		for (int i = 0; i < Performance::MONITOR_MAX; i++) {
+			line.write[i] = Performance::get_singleton()->get_monitor_name(Performance::Monitor(i));
+		}
+		file->store_csv_line(line);
+
+		// values
+		List<Vector<float> >::Element *E = perf_history.back();
+		while (E) {
+
+			Vector<float> &perf_data = E->get();
+			for (int i = 0; i < perf_data.size(); i++) {
+
+				line.write[i] = String::num_real(perf_data[i]);
+			}
+			file->store_csv_line(line);
+			E = E->prev();
+		}
+		file->store_string("\n");
+
+		Vector<Vector<String> > profiler_data = profiler->get_data_as_csv();
+		for (int i = 0; i < profiler_data.size(); i++) {
+			file->store_csv_line(profiler_data[i]);
+		}
 	}
 }
 
@@ -387,6 +425,7 @@ void ScriptEditorDebugger::_parse_message(const String &p_msg, const Array &p_da
 	} else if (p_msg == "debug_exit") {
 
 		breaked = false;
+		_clear_execution();
 		copy->set_disabled(true);
 		step->set_disabled(true);
 		next->set_disabled(true);
@@ -399,7 +438,6 @@ void ScriptEditorDebugger::_parse_message(const String &p_msg, const Array &p_da
 		emit_signal("breaked", false, false, Variant());
 		profiler->set_enabled(true);
 		profiler->disable_seeking();
-		inspector->edit(NULL);
 		EditorNode::get_singleton()->get_pause_button()->set_pressed(false);
 	} else if (p_msg == "message:click_ctrl") {
 
@@ -1236,6 +1274,18 @@ void ScriptEditorDebugger::_notification(int p_what) {
 	}
 }
 
+void ScriptEditorDebugger::_clear_execution() {
+	TreeItem *ti = stack_dump->get_selected();
+	if (!ti)
+		return;
+
+	Dictionary d = ti->get_metadata(0);
+
+	stack_script = ResourceLoader::load(d["file"]);
+	emit_signal("clear_execution", stack_script);
+	stack_script.unref();
+}
+
 void ScriptEditorDebugger::start() {
 
 	stop();
@@ -1276,6 +1326,7 @@ void ScriptEditorDebugger::stop() {
 
 	set_process(false);
 	breaked = false;
+	_clear_execution();
 
 	server->stop();
 	_clear_remote_objects();
@@ -1300,7 +1351,7 @@ void ScriptEditorDebugger::stop() {
 	profiler->set_enabled(true);
 
 	inspect_scene_tree->clear();
-
+	inspector->edit(NULL);
 	EditorNode::get_singleton()->get_pause_button()->set_pressed(false);
 	EditorNode::get_singleton()->get_pause_button()->set_disabled(true);
 	EditorNode::get_singleton()->get_scene_tree_dock()->hide_remote_tree();
@@ -1356,6 +1407,7 @@ void ScriptEditorDebugger::_stack_dump_frame_selected() {
 
 	stack_script = ResourceLoader::load(d["file"]);
 	emit_signal("goto_script_line", stack_script, int(d["line"]) - 1);
+	emit_signal("set_execution", stack_script, int(d["line"]) - 1);
 	stack_script.unref();
 
 	if (connection.is_valid() && connection->is_connected_to_host()) {
@@ -1374,6 +1426,13 @@ void ScriptEditorDebugger::_output_clear() {
 	//output->push_color(Color(0,0,0));
 }
 
+void ScriptEditorDebugger::_export_csv() {
+
+	file_dialog->set_mode(EditorFileDialog::MODE_SAVE_FILE);
+	file_dialog_mode = SAVE_CSV;
+	file_dialog->popup_centered_ratio();
+}
+
 String ScriptEditorDebugger::get_var_value(const String &p_var) const {
 	if (!breaked)
 		return String();
@@ -1859,6 +1918,7 @@ void ScriptEditorDebugger::_item_menu_id_pressed(int p_option) {
 
 			file_dialog->set_access(EditorFileDialog::ACCESS_RESOURCES);
 			file_dialog->set_mode(EditorFileDialog::MODE_SAVE_FILE);
+			file_dialog_mode = SAVE_NODE;
 
 			List<String> extensions;
 			Ref<PackedScene> sd = memnew(PackedScene);
@@ -1884,6 +1944,7 @@ void ScriptEditorDebugger::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("debug_break"), &ScriptEditorDebugger::debug_break);
 	ClassDB::bind_method(D_METHOD("debug_continue"), &ScriptEditorDebugger::debug_continue);
 	ClassDB::bind_method(D_METHOD("_output_clear"), &ScriptEditorDebugger::_output_clear);
+	ClassDB::bind_method(D_METHOD("_export_csv"), &ScriptEditorDebugger::_export_csv);
 	ClassDB::bind_method(D_METHOD("_performance_draw"), &ScriptEditorDebugger::_performance_draw);
 	ClassDB::bind_method(D_METHOD("_performance_select"), &ScriptEditorDebugger::_performance_select);
 	ClassDB::bind_method(D_METHOD("_scene_tree_request"), &ScriptEditorDebugger::_scene_tree_request);
@@ -1920,6 +1981,8 @@ void ScriptEditorDebugger::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_scene_tree_property_value_edited"), &ScriptEditorDebugger::_scene_tree_property_value_edited);
 
 	ADD_SIGNAL(MethodInfo("goto_script_line"));
+	ADD_SIGNAL(MethodInfo("set_execution", PropertyInfo("script"), PropertyInfo(Variant::INT, "line")));
+	ADD_SIGNAL(MethodInfo("clear_execution", PropertyInfo("script")));
 	ADD_SIGNAL(MethodInfo("breaked", PropertyInfo(Variant::BOOL, "reallydid"), PropertyInfo(Variant::BOOL, "can_debug")));
 	ADD_SIGNAL(MethodInfo("show_debugger", PropertyInfo(Variant::BOOL, "reallydid")));
 }
@@ -2205,10 +2268,13 @@ ScriptEditorDebugger::ScriptEditorDebugger(EditorNode *p_editor) {
 	}
 
 	{ // misc
+		VBoxContainer *misc = memnew(VBoxContainer);
+		misc->set_name(TTR("Misc"));
+		tabs->add_child(misc);
+
 		GridContainer *info_left = memnew(GridContainer);
 		info_left->set_columns(2);
-		info_left->set_name(TTR("Misc"));
-		tabs->add_child(info_left);
+		misc->add_child(info_left);
 		clicked_ctrl = memnew(LineEdit);
 		clicked_ctrl->set_h_size_flags(SIZE_EXPAND_FILL);
 		info_left->add_child(memnew(Label(TTR("Clicked Control:"))));
@@ -2233,6 +2299,16 @@ ScriptEditorDebugger::ScriptEditorDebugger(EditorNode *p_editor) {
 			le_set->set_disabled(true);
 			le_clear->set_disabled(true);
 		}
+
+		misc->add_child(memnew(VSeparator));
+
+		HBoxContainer *buttons = memnew(HBoxContainer);
+
+		export_csv = memnew(Button(TTR("Export measures as CSV")));
+		export_csv->connect("pressed", this, "_export_csv");
+		buttons->add_child(export_csv);
+
+		misc->add_child(buttons);
 	}
 
 	msgdialog = memnew(AcceptDialog);
diff --git a/editor/script_editor_debugger.h b/editor/script_editor_debugger.h
index fb1545559c..f7afe6bf72 100644
--- a/editor/script_editor_debugger.h
+++ b/editor/script_editor_debugger.h
@@ -77,6 +77,7 @@ class ScriptEditorDebugger : public Control {
 	LineEdit *live_edit_root;
 	Button *le_set;
 	Button *le_clear;
+	Button *export_csv;
 
 	bool updating_scene_tree;
 	float inspect_scene_tree_timeout;
@@ -92,7 +93,13 @@ class ScriptEditorDebugger : public Control {
 	Tree *inspect_scene_tree;
 	Button *clearbutton;
 	PopupMenu *item_menu;
+
 	EditorFileDialog *file_dialog;
+	enum FileDialogMode {
+		SAVE_CSV,
+		SAVE_NODE,
+	};
+	FileDialogMode file_dialog_mode;
 
 	int error_count;
 	int warning_count;
@@ -196,6 +203,10 @@ class ScriptEditorDebugger : public Control {
 	void _error_tree_item_rmb_selected(const Vector2 &p_pos);
 	void _item_menu_id_pressed(int p_option);
 
+	void _export_csv();
+
+	void _clear_execution();
+
 protected:
 	void _notification(int p_what);
 	static void _bind_methods();
diff --git a/editor/settings_config_dialog.cpp b/editor/settings_config_dialog.cpp
index 611067214d..68a1117364 100644
--- a/editor/settings_config_dialog.cpp
+++ b/editor/settings_config_dialog.cpp
@@ -187,7 +187,7 @@ void EditorSettingsDialog::_update_icons() {
 	restart_close_button->set_icon(get_icon("Close", "EditorIcons"));
 	restart_container->add_style_override("panel", get_stylebox("bg", "Tree"));
 	restart_icon->set_texture(get_icon("StatusWarning", "EditorIcons"));
-	restart_label->add_color_override("font_color", get_color("error_color", "Editor"));
+	restart_label->add_color_override("font_color", get_color("warning_color", "Editor"));
 }
 
 void EditorSettingsDialog::_update_shortcuts() {
@@ -449,7 +449,7 @@ EditorSettingsDialog::EditorSettingsDialog() {
 	restart_icon->set_v_size_flags(SIZE_SHRINK_CENTER);
 	restart_hb->add_child(restart_icon);
 	restart_label = memnew(Label);
-	restart_label->set_text(TTR("Editor must be restarted for changes to take effect"));
+	restart_label->set_text(TTR("The editor must be restarted for changes to take effect."));
 	restart_hb->add_child(restart_label);
 	restart_hb->add_spacer();
 	Button *restart_button = memnew(Button);
diff --git a/editor/spatial_editor_gizmos.cpp b/editor/spatial_editor_gizmos.cpp
index 2e06a903aa..104bac190e 100644
--- a/editor/spatial_editor_gizmos.cpp
+++ b/editor/spatial_editor_gizmos.cpp
@@ -324,7 +324,6 @@ void EditorSpatialGizmo::add_handles(const Vector<Vector3> &p_handles, const Ref
 
 	ERR_FAIL_COND(!spatial_node);
 
-	ERR_FAIL_COND(!spatial_node);
 	Instance ins;
 
 	Ref<ArrayMesh> mesh = memnew(ArrayMesh);
@@ -572,9 +571,11 @@ bool EditorSpatialGizmo::intersect_ray(Camera *p_camera, const Point2 &p_point,
 
 		Transform orig_camera_transform = p_camera->get_camera_transform();
 
-		if (orig_camera_transform.origin.distance_squared_to(t.origin) > 0.01) {
+		if (orig_camera_transform.origin.distance_squared_to(t.origin) > 0.01 &&
+				ABS(orig_camera_transform.basis.get_axis(Vector3::AXIS_Z).dot(Vector3(0, 1, 0))) < 0.99) {
 			p_camera->look_at(t.origin, Vector3(0, 1, 0));
 		}
+
 		Vector3 c0 = t.xform(Vector3(selectable_icon_size, selectable_icon_size, 0) * scale);
 		Vector3 c1 = t.xform(Vector3(-selectable_icon_size, -selectable_icon_size, 0) * scale);
 
@@ -583,7 +584,7 @@ bool EditorSpatialGizmo::intersect_ray(Camera *p_camera, const Point2 &p_point,
 
 		p_camera->set_global_transform(orig_camera_transform);
 
-		Rect2 rect(p0, p1 - p0);
+		Rect2 rect(p0, (p1 - p0).abs());
 
 		rect.set_position(center - rect.get_size() / 2.0);
 
@@ -1310,6 +1311,28 @@ void CameraSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
 	Ref<Material> material = get_material("camera_material", p_gizmo);
 	Ref<Material> icon = get_material("camera_icon", p_gizmo);
 
+#define ADD_TRIANGLE(m_a, m_b, m_c) \
+	{                               \
+		lines.push_back(m_a);       \
+		lines.push_back(m_b);       \
+		lines.push_back(m_b);       \
+		lines.push_back(m_c);       \
+		lines.push_back(m_c);       \
+		lines.push_back(m_a);       \
+	}
+
+#define ADD_QUAD(m_a, m_b, m_c, m_d) \
+	{                                \
+		lines.push_back(m_a);        \
+		lines.push_back(m_b);        \
+		lines.push_back(m_b);        \
+		lines.push_back(m_c);        \
+		lines.push_back(m_c);        \
+		lines.push_back(m_d);        \
+		lines.push_back(m_d);        \
+		lines.push_back(m_a);        \
+	}
+
 	switch (camera->get_projection()) {
 
 		case Camera::PROJECTION_PERSPECTIVE: {
@@ -1322,16 +1345,6 @@ void CameraSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
 			nside.x = -nside.x;
 			Vector3 up = Vector3(0, side.x, 0);
 
-#define ADD_TRIANGLE(m_a, m_b, m_c) \
-	{                               \
-		lines.push_back(m_a);       \
-		lines.push_back(m_b);       \
-		lines.push_back(m_b);       \
-		lines.push_back(m_c);       \
-		lines.push_back(m_c);       \
-		lines.push_back(m_a);       \
-	}
-
 			ADD_TRIANGLE(Vector3(), side + up, side - up);
 			ADD_TRIANGLE(Vector3(), nside + up, nside - up);
 			ADD_TRIANGLE(Vector3(), side + up, nside + up);
@@ -1346,17 +1359,6 @@ void CameraSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
 		} break;
 		case Camera::PROJECTION_ORTHOGONAL: {
 
-#define ADD_QUAD(m_a, m_b, m_c, m_d) \
-	{                                \
-		lines.push_back(m_a);        \
-		lines.push_back(m_b);        \
-		lines.push_back(m_b);        \
-		lines.push_back(m_c);        \
-		lines.push_back(m_c);        \
-		lines.push_back(m_d);        \
-		lines.push_back(m_d);        \
-		lines.push_back(m_a);        \
-	}
 			float size = camera->get_size();
 
 			float hsize = size * 0.5;
@@ -1369,6 +1371,7 @@ void CameraSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
 			ADD_QUAD(-up - right + back, -up + right + back, up + right + back, up - right + back);
 			ADD_QUAD(up + right, up + right + back, up - right + back, up - right);
 			ADD_QUAD(-up + right, -up + right + back, -up - right + back, -up - right);
+
 			handles.push_back(right + back);
 
 			right.x *= 0.25;
@@ -1376,8 +1379,30 @@ void CameraSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
 			ADD_TRIANGLE(tup, right + up + back, -right + up + back);
 
 		} break;
+		case Camera::PROJECTION_FRUSTUM: {
+			float hsize = camera->get_size() / 2.0;
+
+			Vector3 side = Vector3(hsize, 0, -camera->get_znear()).normalized();
+			Vector3 nside = side;
+			nside.x = -nside.x;
+			Vector3 up = Vector3(0, side.x, 0);
+			Vector3 offset = Vector3(camera->get_frustum_offset().x, camera->get_frustum_offset().y, 0.0);
+
+			ADD_TRIANGLE(Vector3(), side + up + offset, side - up + offset);
+			ADD_TRIANGLE(Vector3(), nside + up + offset, nside - up + offset);
+			ADD_TRIANGLE(Vector3(), side + up + offset, nside + up + offset);
+			ADD_TRIANGLE(Vector3(), side - up + offset, nside - up + offset);
+
+			side.x *= 0.25;
+			nside.x *= 0.25;
+			Vector3 tup(0, up.y * 3 / 2, side.z);
+			ADD_TRIANGLE(tup + offset, side + up + offset, nside + up + offset);
+		}
 	}
 
+#undef ADD_TRIANGLE
+#undef ADD_QUAD
+
 	p_gizmo->add_lines(lines, material);
 	p_gizmo->add_unscaled_billboard(icon, 0.05);
 	p_gizmo->add_handles(handles, get_material("handles"));
diff --git a/editor/translations/af.po b/editor/translations/af.po
index acc57bd967..795044c0cd 100644
--- a/editor/translations/af.po
+++ b/editor/translations/af.po
@@ -433,7 +433,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Tree (s):"
 
 #: editor/animation_track_editor.cpp
@@ -441,6 +441,14 @@ msgstr "Tree (s):"
 msgid "Animation step value."
 msgstr "Animasie Zoem."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3814,6 +3822,11 @@ msgid "Delete Node"
 msgstr "Skrap"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Wissel Gunsteling"
@@ -4791,8 +4804,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Anim Voeg Sleutel by"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "Anim Voeg Sleutel by"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4864,6 +4902,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5214,52 +5298,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5782,7 +5829,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6614,6 +6661,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Skep Nuwe"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Skep Intekening"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Skep Intekening"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Skep Vouer"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6626,17 +6693,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Skep Nuwe"
+msgid "Convert to Polygon2D"
+msgstr "Hernoem AutoLaai"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Skep Intekening"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7234,6 +7322,11 @@ msgid "Duplicate Nodes"
 msgstr "Anim Dupliseer Sleutels"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Skrap"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8398,10 +8491,6 @@ msgid "Open documentation"
 msgstr "Opnoemings"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/ar.po b/editor/translations/ar.po
index 6807717a59..50efabd7f5 100644
--- a/editor/translations/ar.po
+++ b/editor/translations/ar.po
@@ -17,7 +17,7 @@
 # Rex_sa <asd1234567890m@gmail.com>, 2017, 2018, 2019.
 # Wajdi Feki <wajdi.feki@gmail.com>, 2017.
 # Omar Aglan <omar.aglan91@yahoo.com>, 2018, 2019.
-# Codes Otaku <ilyas.gamerz@gmail.com>, 2018.
+# Codes Otaku <ilyas.gamerz@gmail.com>, 2018, 2019.
 # Takai Eddine Kennouche <takai.kenn@gmail.com>, 2018.
 # Mohamed El-Baz <albaz2000eg@gmail.com>, 2018.
 # عاصم شكر - Aasem shokr <aasemshokr@gmail.com>, 2018.
@@ -28,8 +28,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-24 17:38+0000\n"
-"Last-Translator: spiderx0x <legendofdarks@gmail.com>\n"
+"PO-Revision-Date: 2019-04-17 10:02+0000\n"
+"Last-Translator: Omar Aglan <omar.aglan91@yahoo.com>\n"
 "Language-Team: Arabic <https://hosted.weblate.org/projects/godot-engine/"
 "godot/ar/>\n"
 "Language: ar\n"
@@ -53,7 +53,7 @@ msgstr "لا يوجد ما يكÙ�ÙŠ من البايتات من أجل Ù�Ùƒ الØ
 
 #: core/math/expression.cpp
 msgid "Invalid input %i (not passed) in expression"
-msgstr "م�دخل غير صالح \"i%\" (لم يتم تمريره) �ي السطر"
+msgstr "إدخال خاطيء i% (لم يتم تمريره) �ي التصريح"
 
 #: core/math/expression.cpp
 msgid "self can't be used because instance is null (not passed)"
@@ -363,11 +363,11 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "An animation player can't animate itself, only other players."
-msgstr ""
+msgstr "مشغل الحركة لا يمكنه تحريك ن�سه, �قط الاعبين الأخرين."
 
 #: editor/animation_track_editor.cpp
 msgid "Not possible to add a new track without a root"
-msgstr ""
+msgstr "لا يمكن إضا�ة مقطع جديد بدون جذر"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -376,34 +376,31 @@ msgstr "إضا�ة مسار"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a key."
-msgstr ""
+msgstr "مسار المقطع غير صالح, إذن لا يمكن إضا�ة م�تاح."
 
 #: editor/animation_track_editor.cpp
 msgid "Track is not of type Spatial, can't insert key"
-msgstr ""
+msgstr "المقطع ليس من نوع مكاني (Spatial), لا يمكن إضا�ة م�تاح."
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Transform Track Key"
-msgstr "خط التحريك ثلاثي الأبعاد"
+msgstr "أض� م�تاح مقطع المتحول (Transform)"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Track Key"
-msgstr "إضا�ة مسار"
+msgstr "أض� م�تاح المقطع"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a method key."
-msgstr ""
+msgstr "مسار المقطع غير صالح, إذن لا يمكن إضا�ة دالة الم�تاح (Method key)."
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Method Track Key"
-msgstr "استدعاء أسلوب المسار"
+msgstr "أض� م�تاح مقطع الدالة"
 
 #: editor/animation_track_editor.cpp
 msgid "Method not found in object: "
-msgstr ""
+msgstr "دالة لم توجد �ي شيئ: "
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Move Keys"
@@ -411,12 +408,11 @@ msgstr "م�تاح حركة التحريك"
 
 #: editor/animation_track_editor.cpp
 msgid "Clipboard is empty"
-msgstr ""
+msgstr "ذاكرة التخزين المؤقت (Clipboard) �ارغة"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Paste Tracks"
-msgstr "لصق الم�عامل"
+msgstr "لصق المقاطع"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Scale Keys"
@@ -425,25 +421,32 @@ msgstr "م�تاح تكبير حركة"
 #: editor/animation_track_editor.cpp
 msgid ""
 "This option does not work for Bezier editing, as it's only a single track."
-msgstr ""
+msgstr "هذا الخيار لا يعمل لتعديل خط (Bezier), لأنه �قط مقطع واحد."
 
 #: editor/animation_track_editor.cpp
 msgid "Only show tracks from nodes selected in tree."
-msgstr ""
+msgstr "�قط قم بتبين المقاطع من العقد (Nodes) المحددة �ي الشجرة."
 
 #: editor/animation_track_editor.cpp
 msgid "Group tracks by node or display them as plain list."
-msgstr ""
+msgstr "قم بتجميع المقاطع حسب العقد (Nodes) أو إظهارهم كقائمة بسيطة."
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "خطوة (ثانية):"
+msgid "Snap:"
+msgstr "خطوة أو خطوات: "
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Animation step value."
-msgstr "شجرة الحركة صحيحة."
+msgstr "قيمة خطوة الحركة."
+
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
 
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
@@ -452,17 +455,15 @@ msgstr "شجرة الحركة صحيحة."
 #: editor/project_manager.cpp editor/project_settings_editor.cpp
 #: editor/property_editor.cpp modules/visual_script/visual_script_editor.cpp
 msgid "Edit"
-msgstr ""
+msgstr "تعديل"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Animation properties."
-msgstr "شجرة الحركة"
+msgstr "خاصيات الحركة."
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Copy Tracks"
-msgstr "إنسخ الم�عامل"
+msgstr "إنسخ المقاطع"
 
 #: editor/animation_track_editor.cpp
 msgid "Scale Selection"
@@ -481,17 +482,14 @@ msgid "Duplicate Transposed"
 msgstr "نسخ محمّل"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Delete Selection"
-msgstr "نص� الم�حدد"
+msgstr "إحد� المحدد (المجموعة المختارة)"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Go to Next Step"
 msgstr "إذهب إلي الخطوة التالية"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Go to Previous Step"
 msgstr "إذهب إلي الخطوة السابقة"
 
@@ -505,11 +503,12 @@ msgstr "تنظي� الحركة"
 
 #: editor/animation_track_editor.cpp
 msgid "Pick the node that will be animated:"
-msgstr ""
+msgstr "إختار العقدة التي سو� يتم تحريكها:"
 
 #: editor/animation_track_editor.cpp
+#, fuzzy
 msgid "Use Bezier Curves"
-msgstr ""
+msgstr "إستعمل خطوط أو منحنيات Bezier"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim. Optimizer"
@@ -557,7 +556,7 @@ msgstr "نسبة التكبير:"
 
 #: editor/animation_track_editor.cpp
 msgid "Select tracks to copy:"
-msgstr ""
+msgstr "حدد مقاطع لنسخ:"
 
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/animation_player_editor_plugin.cpp
@@ -565,20 +564,19 @@ msgstr ""
 #: editor/plugins/sprite_frames_editor_plugin.cpp editor/property_editor.cpp
 #: scene/gui/line_edit.cpp scene/gui/text_edit.cpp
 msgid "Copy"
-msgstr ""
+msgstr "أنسخ"
 
 #: editor/animation_track_editor_plugins.cpp
-#, fuzzy
 msgid "Add Audio Track Clip"
-msgstr "مقاطع الصوت:"
+msgstr "أض� مقطع صوت"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip Start Offset"
-msgstr ""
+msgstr "تغيير موضع بداية مقطع صوت"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip End Offset"
-msgstr ""
+msgstr "تغيير موضع نهاية مقطع صوت"
 
 #: editor/array_property_edit.cpp
 msgid "Resize Array"
@@ -646,11 +644,11 @@ msgstr "إرجاع التكبير"
 
 #: editor/code_editor.cpp modules/mono/editor/mono_bottom_panel.cpp
 msgid "Warnings"
-msgstr ""
+msgstr "تحذيرات"
 
 #: editor/code_editor.cpp
 msgid "Line and column numbers."
-msgstr ""
+msgstr "أرقام الخط و العمود."
 
 #: editor/connections_dialog.cpp
 msgid "Method in target Node must be specified!"
@@ -734,7 +732,6 @@ msgid "Disconnect '%s' from '%s'"
 msgstr "قطع إتصال'%s' من '%s'"
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Disconnect all from signal: '%s'"
 msgstr "قطع إتصال'%s' من '%s'"
 
@@ -748,18 +745,16 @@ msgid "Disconnect"
 msgstr "قطع الاتصال"
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Connect Signal: "
-msgstr "يوصل الإشارة:"
+msgstr "قم بوصل الإشارة: "
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Edit Connection: "
-msgstr "خطأ �ي الإتصال"
+msgstr "قم بتعديل الإتصال: "
 
 #: editor/connections_dialog.cpp
 msgid "Are you sure you want to remove all connections from the \"%s\" signal?"
-msgstr ""
+msgstr "هل أنت(ي) متأكد(ة) أنك تود إزالة كل الإتصالات من الإشارة \"%s\"؟"
 
 #: editor/connections_dialog.cpp editor/editor_help.cpp editor/node_dock.cpp
 msgid "Signals"
@@ -767,22 +762,19 @@ msgstr "إشارات"
 
 #: editor/connections_dialog.cpp
 msgid "Are you sure you want to remove all connections from this signal?"
-msgstr ""
+msgstr "هل أنت(ي) متأكد(ة) أنك تود إزالة كل الإتصالات من هذه الإشارة؟"
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Disconnect All"
-msgstr "قطع الاتصال"
+msgstr "قطع الاتصال على الكل"
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Edit..."
-msgstr "الم�عدل"
+msgstr "تعديل..."
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Go To Method"
-msgstr "قائمة الطرق"
+msgstr "إذهب إلى الدالة"
 
 #: editor/create_dialog.cpp
 msgid "Change %s Type"
@@ -915,7 +907,6 @@ msgid "Error loading:"
 msgstr "خطآ �ي التحميل:"
 
 #: editor/dependency_editor.cpp
-#, fuzzy
 msgid "Load failed due to missing dependencies:"
 msgstr "�شل �ي تحميل المشهد بسبب وجود تبعيات م�قودة يعتمد المشهد عليها:"
 
@@ -1068,9 +1059,8 @@ msgid "Uncompressing Assets"
 msgstr "ي�كك الضغط عن الأصول"
 
 #: editor/editor_asset_installer.cpp editor/project_manager.cpp
-#, fuzzy
 msgid "Package installed successfully!"
-msgstr "الحزمة تم تثبيتها بنجاح!"
+msgstr "تم تتبيث الحزمة بنجاح!"
 
 #: editor/editor_asset_installer.cpp
 #: editor/plugins/asset_library_editor_plugin.cpp
@@ -1216,9 +1206,8 @@ msgid "Add Bus"
 msgstr "أض� بيوس"
 
 #: editor/editor_audio_buses.cpp
-#, fuzzy
 msgid "Add a new Audio Bus to this layout."
-msgstr "إح�ظ نسق بيوس الصوت كـ..."
+msgstr "أض� مسار صوت (Audio Bus) جديد إلى هذا التصميم."
 
 #: editor/editor_audio_buses.cpp editor/editor_properties.cpp
 #: editor/plugins/animation_player_editor_plugin.cpp editor/property_editor.cpp
@@ -1387,7 +1376,7 @@ msgstr "تخزين المل�:"
 
 #: editor/editor_export.cpp
 msgid "No export template found at the expected path:"
-msgstr ""
+msgstr "لم يوجد قالب التصدير �ي المسار المتوقع:"
 
 #: editor/editor_export.cpp
 msgid "Packing"
@@ -1398,12 +1387,16 @@ msgid ""
 "Target platform requires 'ETC' texture compression for GLES2. Enable 'Import "
 "Etc' in Project Settings."
 msgstr ""
+"المنصة المستهد�ة تحتاج لتش�ير ملمس 'ETC' ل GLES2. قم بتمكين 'Import Etc' �ي "
+"إعدادات المشروع."
 
 #: editor/editor_export.cpp
 msgid ""
 "Target platform requires 'ETC2' texture compression for GLES3. Enable "
 "'Import Etc 2' in Project Settings."
 msgstr ""
+"المنصة المستهد�ة تحتاج لتش�ير ملمس \"ETC2\" ل GLES3. قم بتمكين 'Import Etc "
+"2' �ي إعدادات المشروع."
 
 #: editor/editor_export.cpp
 msgid ""
@@ -3899,6 +3892,11 @@ msgid "Delete Node"
 msgstr "إنشاء عقدة"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "تمكين/إيقا� هذا المسار."
@@ -4888,9 +4886,34 @@ msgid "Layout"
 msgstr "المخطط"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "أدخل م�اتيح"
+msgid "Insert keys (based on mask)."
+msgstr "أدخل م�تاح (مسارات موجودة بال�عل)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "أض� م�تاح الحركة"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4963,6 +4986,52 @@ msgstr "تعديل البولي (مسح النقطة)"
 msgid "Set Handle"
 msgstr "حدد المعامل"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "خطأ تحميل الصورة:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "لا بيكسل بش�ا�ية > 128 �ي الصورة..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "حمل قناع الانبعاث"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "إمسح قناع الانبعاث"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "جسيمات"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "عدد النقاط المولدة:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "قناع الانبعاث"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "التقط من البيكسل"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "الوان الانبعاث"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5316,22 +5385,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "لا يمكن إنشاء سوى نقطة وحيدة داخل ParticlesMaterial معالج المواد"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "خطأ تحميل الصورة:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "لا بيكسل بش�ا�ية > 128 �ي الصورة..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "حمل قناع الانبعاث"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "إمسح قناع الانبعاث"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5339,30 +5392,9 @@ msgstr "تحويل إلي %s"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "جسيمات"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "عدد النقاط المولدة:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "وقت التوليد (تانية):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "قناع الانبعاث"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "التقط من البيكسل"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "الوان الانبعاث"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "الوجوه لا تحتوي على منطقة!"
@@ -5899,7 +5931,8 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " مرجع الصن�"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6740,6 +6773,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "إنشاء شبكة الخطوط العريضة"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "إنشاء بولي"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "إنشاء م�ضلع التنقل"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "أنشئ شكل م�طبق"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "الميش �ارغ!"
 
@@ -6752,18 +6805,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "تحويل إلي %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "إنشاء شبكة الخطوط العريضة"
+msgid "Convert to Polygon2D"
+msgstr "تحويل إلي %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "إنشاء م�ضلع التنقل"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "أنشئ شكل م�طبق"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7385,6 +7460,11 @@ msgid "Duplicate Nodes"
 msgstr "م�اتيح نسخ التحريك"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "إنشاء عقدة"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8563,10 +8643,6 @@ msgid "Open documentation"
 msgstr "��تح مؤخراً"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10335,6 +10411,10 @@ msgstr "التعين للإنتظام."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "يمكن تعيين المتغيرات �قط �ي الذروة ."
 
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "أدخل م�اتيح"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "نمذج المشهد(المشاهد) المحددة كط�ل للعقدة المحددة."
 
diff --git a/editor/translations/bg.po b/editor/translations/bg.po
index a179f3b438..fb81a1793a 100644
--- a/editor/translations/bg.po
+++ b/editor/translations/bg.po
@@ -433,7 +433,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Стъпка (�ек.):"
 
 #: editor/animation_track_editor.cpp
@@ -441,6 +441,14 @@ msgstr "Стъпка (�ек.):"
 msgid "Animation step value."
 msgstr "Изтриване на анимаци�та?"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3826,6 +3834,11 @@ msgid "Delete Node"
 msgstr "Избиране на в�ичко"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Покажи Любими"
@@ -4811,7 +4824,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4883,6 +4920,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5234,52 +5317,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5798,7 +5844,7 @@ msgid "Save Theme As..."
 msgstr "Запази Темата Като..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6635,6 +6681,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Създайте нов/а  %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Създаване на папка"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Създаване на папка"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Създаване на папка"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6647,17 +6713,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Създайте нов/а  %s"
+msgid "Convert to Polygon2D"
+msgstr "Преме�тване на Полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Създаване на папка"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7274,6 +7361,11 @@ msgid "Duplicate Nodes"
 msgstr "�аправи дупликат на Key(s)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Избиране на в�ичко"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8465,10 +8557,6 @@ msgid "Open documentation"
 msgstr "Отвори документаци�та на Godot онлайн"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/bn.po b/editor/translations/bn.po
index 3634ca82d2..4b7dd76be6 100644
--- a/editor/translations/bn.po
+++ b/editor/translations/bn.po
@@ -451,14 +451,22 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "স�ন�যাপ (পিক�সেলসমূহ):"
+msgid "Snap:"
+msgstr "স�ন�যাপ"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
 msgid "Animation step value."
 msgstr "অ�যানিমেশনের তালিকাটি কার�যকর।"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "�ফ পি �স"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -4062,6 +4070,11 @@ msgid "Delete Node"
 msgstr "নোড(সমূহ) অপসারণ কর�ন"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "নোড(সমূহ) অপসারণ কর�ন"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "বিক�ষেপ-হীন মোড"
@@ -5086,9 +5099,34 @@ msgid "Layout"
 msgstr "লেআউট/নকশা সংরক�ষণ কর�ন"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "চাবিসমূহ সন�নিবেশ কর�ন"
+msgid "Insert keys (based on mask)."
+msgstr "চাবি সন�নিবেশ কর�ন (বিদ�যমান ট�র�যাক/পথসমূহ)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "অ�যানিমেশনে (Anim) চাবি যোগ কর�ন"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -5161,6 +5199,56 @@ msgstr "Poly সম�পাদন কর�ন (বিন�দ� অপসা
 msgid "Set Handle"
 msgstr "হ�যান�ডেল স�থাপন কর�ন"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "ছবি লোডে সমস�যা হয়েছে:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "স�বচ�ছতাসহ কোনো পিক�সেল নেই > ছবিতে ১২৮..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Emission Mask লোড কর�ন"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Emission Mask পরিস�কার কর�ন"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+#, fuzzy
+msgid "Particles"
+msgstr "ভারটেক�স"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "উৎপাদিত বিন�দ�র সংখ�যা:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Emission Mask"
+msgstr "Emission Mask স�থাপন কর�ন"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Capture from Pixel"
+msgstr "দৃশ�য হতে তৈরি করবেন"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Emission Colors"
+msgstr "Emission-�র স�থানসমূহ:"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5528,22 +5616,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "শ�ধ�মাত�র ParticlesMaterial প�রসেস ম�যাটেরিয়ালে বিন�দ� স�থাপন সম�ভব"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "ছবি লোডে সমস�যা হয়েছে:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "স�বচ�ছতাসহ কোনো পিক�সেল নেই > ছবিতে ১২৮..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Emission Mask লোড কর�ন"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Emission Mask পরিস�কার কর�ন"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5552,34 +5624,9 @@ msgstr "�তে রূপান�তর কর�ন..."
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
-msgid "Particles"
-msgstr "ভারটেক�স"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "উৎপাদিত বিন�দ�র সংখ�যা:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
-#, fuzzy
 msgid "Generation Time (sec):"
 msgstr "গড় সময় (সেঃ)"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Emission Mask"
-msgstr "Emission Mask স�থাপন কর�ন"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Capture from Pixel"
-msgstr "দৃশ�য হতে তৈরি করবেন"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Emission Colors"
-msgstr "Emission-�র স�থানসমূহ:"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "পৃষ�ঠসমূহ কোনো আকার নেই!"
@@ -6134,7 +6181,8 @@ msgid "Save Theme As..."
 msgstr "থিম �ইরূপে সংরক�ষণ কর�ন..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " ক�লাস রেফারেন�স"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -7014,6 +7062,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "প�রান�তরেখা মেস তৈরি কর�ন"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Poly তৈরি কর�ন"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Navigation Polygon তৈরি কর�ন"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "অকল�ডার (occluder) পলিগন তৈরি কর�ন"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "সংরক�ষণের পথটি খালি!"
 
@@ -7026,19 +7094,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Sprite"
 msgstr "ফ�রেমসমূহ স�তূপ কর�ন"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "�তে রূপান�তর কর�ন..."
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "প�রান�তরেখা মেস তৈরি কর�ন"
+msgid "Convert to Polygon2D"
+msgstr "পলিগন সরান"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Navigation Polygon তৈরি কর�ন"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "অকল�ডার (occluder) পলিগন তৈরি কর�ন"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7674,6 +7764,11 @@ msgid "Duplicate Nodes"
 msgstr "নোড(সমূহ) প�রতিলিপি কর�ন"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "নোড(সমূহ) অপসারণ কর�ন"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8932,10 +9027,6 @@ msgid "Open documentation"
 msgstr "রেফারেন�সের ডক�মেন�টেশনে খ��জ�ন।"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "নোড(সমূহ) অপসারণ কর�ন"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "শীষ�য নোড তৈরি কর�ন"
 
@@ -10861,12 +10952,17 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "স�ন�যাপ (পিক�সেলসমূহ):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "চাবিসমূহ সন�নিবেশ কর�ন"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "নির�বাচিত দৃশ�য(সমূহ)-কে নির�বাচিত নোডের অংশ হিসেবে ইনস�ট�যান�স কর�ন।"
 
-#~ msgid "FPS"
-#~ msgstr "�ফ পি �স"
-
 #, fuzzy
 #~ msgid "Warnings:"
 #~ msgstr "সতর�কতা"
diff --git a/editor/translations/ca.po b/editor/translations/ca.po
index 27524d5417..cd87bb8a46 100644
--- a/editor/translations/ca.po
+++ b/editor/translations/ca.po
@@ -6,12 +6,13 @@
 # Javier Ocampos <xavier.ocampos@gmail.com>, 2018.
 # Roger Blanco Ribera <roger.blancoribera@gmail.com>, 2016-2018.
 # Rubén Moreno <ruben.moreno.romero@gmail.com>, 2018.
+# roger <616steam@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2018-12-13 14:38+0100\n"
-"Last-Translator: Roger Blanco Ribera <roger.blancoribera@gmail.com>\n"
+"PO-Revision-Date: 2019-04-19 16:33+0000\n"
+"Last-Translator: roger <616steam@gmail.com>\n"
 "Language-Team: Catalan <https://hosted.weblate.org/projects/godot-engine/"
 "godot/ca/>\n"
 "Language: ca\n"
@@ -19,7 +20,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Poedit 2.2\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -86,9 +87,8 @@ msgid "Delete Selected Key(s)"
 msgstr "Elimina les Claus seleccionades"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Add Bezier Point"
-msgstr "Afegeix un punt"
+msgstr "Afegir punt Bezier"
 
 #: editor/animation_bezier_editor.cpp
 #, fuzzy
@@ -234,7 +234,7 @@ msgstr "Captura"
 
 #: editor/animation_track_editor.cpp
 msgid "Nearest"
-msgstr "El de més a prop"
+msgstr "Més proper"
 
 #: editor/animation_track_editor.cpp editor/plugins/curve_editor_plugin.cpp
 #: editor/property_editor.cpp
@@ -329,9 +329,8 @@ msgid "Change Animation Step"
 msgstr "Modifica els FPS de l'Animació"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Rearrange Tracks"
-msgstr "Reorganitza AutoCàrregues"
+msgstr "Reorganitza pistes"
 
 #: editor/animation_track_editor.cpp
 msgid "Transform tracks only apply to Spatial-based nodes."
@@ -383,9 +382,8 @@ msgid "Add Transform Track Key"
 msgstr "Pista de Transformació 3D"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Track Key"
-msgstr "Afegeix una Pista"
+msgstr "Afegir Clau de Pista"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a method key."
@@ -393,9 +391,8 @@ msgstr ""
 "No s'hi pot afegit cap clau de mètode. El camí de la pista no és vàlid."
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Method Track Key"
-msgstr "Pista de Crida de Mètodes"
+msgstr "Afegir Clau de Pista de Mètode"
 
 #: editor/animation_track_editor.cpp
 msgid "Method not found in object: "
@@ -432,13 +429,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Agrupa les pistes per node o mostra-les en una llista."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Pas (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Alinea"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valor del pas d'Animació."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -1379,11 +1385,8 @@ msgid "Storing File:"
 msgstr "Emmagatzemant Fitxer:"
 
 #: editor/editor_export.cpp
-#, fuzzy
 msgid "No export template found at the expected path:"
-msgstr ""
-"No s'ha trobat cap plantilla.\n"
-"Descarregueu i instal·leu alguna plantilla d'exportació."
+msgstr "No s'ha trobat cap plantilla d'exportació en la ruta esperada:"
 
 #: editor/editor_export.cpp
 msgid "Packing"
@@ -1412,9 +1415,8 @@ msgstr ""
 #: editor/editor_export.cpp platform/android/export/export.cpp
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
 #: platform/osx/export/export.cpp platform/uwp/export/export.cpp
-#, fuzzy
 msgid "Custom debug template not found."
-msgstr "No s'ha trobat cap paquet de depuració personalitzat."
+msgstr "No s'ha trobat cap plantilla de depuració personalitzada."
 
 #: editor/editor_export.cpp platform/android/export/export.cpp
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
@@ -1535,14 +1537,12 @@ msgid "Move Favorite Down"
 msgstr "Mou Favorit Avall"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Previous Folder"
-msgstr "Planta Anterior"
+msgstr "Directori Anterior"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Next Folder"
-msgstr "Planta Següent"
+msgstr "Directori Següent"
 
 #: editor/editor_file_dialog.cpp
 msgid "Go to parent folder"
@@ -1619,19 +1619,16 @@ msgid "Methods"
 msgstr "Mètodes"
 
 #: editor/editor_help.cpp
-#, fuzzy
 msgid "Methods:"
-msgstr "Mètodes"
+msgstr "Mètodes:"
 
 #: editor/editor_help.cpp
-#, fuzzy
 msgid "Theme Properties"
-msgstr "Propietats"
+msgstr "Propietats del tema"
 
 #: editor/editor_help.cpp
-#, fuzzy
 msgid "Theme Properties:"
-msgstr "Propietats:"
+msgstr "Propietats del tema:"
 
 #: editor/editor_help.cpp modules/visual_script/visual_script_editor.cpp
 msgid "Signals:"
@@ -1658,14 +1655,12 @@ msgid "Constants:"
 msgstr "Constants:"
 
 #: editor/editor_help.cpp
-#, fuzzy
 msgid "Class Description"
-msgstr "Descripció"
+msgstr "Descripció de la classe"
 
 #: editor/editor_help.cpp
-#, fuzzy
 msgid "Class Description:"
-msgstr "Descripció:"
+msgstr "Descripció de la classe:"
 
 #: editor/editor_help.cpp
 msgid "Online Tutorials:"
@@ -1728,34 +1723,28 @@ msgid "Display All"
 msgstr "Mostra les Normals"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Classes Only"
-msgstr "Classes"
+msgstr "Només Classes"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Methods Only"
-msgstr "Mètodes"
+msgstr "Només Mètodes"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Signals Only"
-msgstr "Senyals"
+msgstr "Només Senyals"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Constants Only"
-msgstr "Constants"
+msgstr "Només Constants"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Properties Only"
-msgstr "Propietats"
+msgstr "Només Propietats"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Theme Properties Only"
-msgstr "Propietats"
+msgstr "Només Propietats del Tema"
 
 #: editor/editor_help_search.cpp
 #, fuzzy
@@ -1763,9 +1752,8 @@ msgid "Member Type"
 msgstr "Membres"
 
 #: editor/editor_help_search.cpp
-#, fuzzy
 msgid "Class"
-msgstr "Classe:"
+msgstr "Classe"
 
 #: editor/editor_inspector.cpp editor/project_settings_editor.cpp
 msgid "Property:"
@@ -1803,7 +1791,7 @@ msgstr "L'exportació del projecte ha fallat amb el codi d'error %d."
 
 #: editor/editor_node.cpp
 msgid "Imported resources can't be saved."
-msgstr ""
+msgstr "Els recursos importats no es poden guardar."
 
 #: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
 #: scene/gui/dialogs.cpp
@@ -2043,7 +2031,7 @@ msgstr "No s'ha pogut carregar el recurs."
 
 #: editor/editor_node.cpp
 msgid "A root node is required to save the scene."
-msgstr ""
+msgstr "Es requereix un node arrel per a guardar l'escena."
 
 #: editor/editor_node.cpp
 msgid "Save Scene As..."
@@ -2797,6 +2785,8 @@ msgid ""
 "The selected resource (%s) does not match any type expected for this "
 "property (%s)."
 msgstr ""
+"El recurs seleccionat (%s) no coincideix amb cap tipus esperat per aquesta "
+"propietat (%s)."
 
 #: editor/editor_properties.cpp
 msgid ""
@@ -3126,9 +3116,8 @@ msgstr ""
 "tipus de fitxers!"
 
 #: editor/filesystem_dock.cpp
-#, fuzzy
 msgid "Favorites"
-msgstr "Favorits:"
+msgstr "Preferits"
 
 #: editor/filesystem_dock.cpp
 msgid "Cannot navigate to '%s' as it has not been found in the file system!"
@@ -3199,14 +3188,12 @@ msgid "Instance"
 msgstr "Instància"
 
 #: editor/filesystem_dock.cpp
-#, fuzzy
 msgid "Add to favorites"
-msgstr "Favorits:"
+msgstr "Afegir a preferits"
 
 #: editor/filesystem_dock.cpp
-#, fuzzy
 msgid "Remove from favorites"
-msgstr "Treu del Grup"
+msgstr "Eliminar dels preferits"
 
 #: editor/filesystem_dock.cpp
 msgid "Edit Dependencies..."
@@ -3307,14 +3294,12 @@ msgid "Find:"
 msgstr "Cerca: "
 
 #: editor/find_in_files.cpp
-#, fuzzy
 msgid "Folder:"
-msgstr "Directori : "
+msgstr "Directori: "
 
 #: editor/find_in_files.cpp
-#, fuzzy
 msgid "Filters:"
-msgstr "Filtres"
+msgstr "Filtres:"
 
 #: editor/find_in_files.cpp editor/plugins/script_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3492,14 +3477,16 @@ msgid "Save scenes, re-import and restart"
 msgstr ""
 
 #: editor/import_dock.cpp
-#, fuzzy
 msgid "Changing the type of an imported file requires editor restart."
-msgstr "Canviar el controlador de vídeo requereix reiniciar l'editor."
+msgstr "Canviar el tipus d'un fitxer importat requereix reiniciar l'editor."
 
 #: editor/import_dock.cpp
+#, fuzzy
 msgid ""
 "WARNING: Assets exist that use this resource, they may stop loading properly."
 msgstr ""
+"ADVERTIMENT: Existeixen actius que utilitzen aquest recurs, es possible que "
+"deixin de carregar-se correctament."
 
 #: editor/inspector_dock.cpp
 msgid "Failed to load resource."
@@ -3622,9 +3609,8 @@ msgstr "Activar ara?"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
-#, fuzzy
 msgid "Create Polygon"
-msgstr "Crea Polígon"
+msgstr "Crear Polígon"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 #: editor/plugins/animation_blend_space_1d_editor.cpp
@@ -3639,10 +3625,9 @@ msgid ""
 "LMB: Move Point\n"
 "RMB: Erase Point"
 msgstr ""
-"Edita un Polígon existent:\n"
-"Clic Esquerra: Mou un Punt.\n"
-"Ctrl+Clic Esquerra: Divideix un Segment.\n"
-"Clic Dreta: Elimina un Punt."
+"Editar punts:\n"
+"Clic Esquerra: Moure Punt.\n"
+"Clic Dreta: Eliminar Punt."
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 #: editor/plugins/animation_blend_space_1d_editor.cpp
@@ -3650,9 +3635,8 @@ msgid "Erase points."
 msgstr "Elimina un Punt."
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
-#, fuzzy
 msgid "Edit Polygon"
-msgstr "Edita Polígon"
+msgstr "Editar Polígon"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 msgid "Insert Point"
@@ -3772,9 +3756,8 @@ msgid "Triangle already exists"
 msgstr "El triangle ja existeix"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Triangle"
-msgstr "Afegeix una Variable"
+msgstr "Afegir Triangle"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 #, fuzzy
@@ -3827,9 +3810,8 @@ msgid "Blend:"
 msgstr "Mescla:"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Parameter Changed"
-msgstr "Canvis de Material"
+msgstr "Paràmetre Canviat"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
@@ -3847,9 +3829,8 @@ msgstr "Afegeix Nodes des d'Arbre"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Node Moved"
-msgstr "Mode de moviment"
+msgstr "Node mogut"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3860,13 +3841,12 @@ msgstr "No es pot connectar. El port és en ús o la connexió no és vàlida."
 #: editor/plugins/visual_shader_editor_plugin.cpp
 #, fuzzy
 msgid "Nodes Connected"
-msgstr "Connectat"
+msgstr "Nodes Connectats"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Nodes Disconnected"
-msgstr "Desconnectat"
+msgstr "Nodes Desconnectats"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
@@ -3875,8 +3855,12 @@ msgstr "Animació"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Delete Node"
+msgstr "Eliminar Node"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
 msgstr "Elimina els Nodes"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
@@ -3885,9 +3869,8 @@ msgid "Toggle Filter On/Off"
 msgstr "Activa/Desactiva la Pista."
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Change Filter"
-msgstr "S'ha Modificat el Filtre de Locale"
+msgstr "Canviar Filtre"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "No animation player set, so unable to retrieve track names."
@@ -4171,11 +4154,11 @@ msgstr "Final/s"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Immediate"
-msgstr ""
+msgstr "Immediat"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Sync"
-msgstr ""
+msgstr "Sincronitzar"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "At End"
@@ -4484,7 +4467,7 @@ msgstr "Següent"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Last"
-msgstr ""
+msgstr "Últim"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 #: modules/gdnative/gdnative_library_editor_plugin.cpp
@@ -4887,9 +4870,34 @@ msgid "Layout"
 msgstr "Desar Disseny"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Insereix Claus"
+msgid "Insert keys (based on mask)."
+msgstr "Insereix una Clau (Pistes existents)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Insereix una Clau"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4946,9 +4954,8 @@ msgstr ""
 "Arrossegar i deixar anar + Maj: Canvia el tipus del node"
 
 #: editor/plugins/collision_polygon_editor_plugin.cpp
-#, fuzzy
 msgid "Create Polygon3D"
-msgstr "Crea Polígon"
+msgstr "Crear Polígon3D"
 
 #: editor/plugins/collision_polygon_editor_plugin.cpp
 msgid "Edit Poly"
@@ -4962,6 +4969,52 @@ msgstr "Edita el Polígon (Elimina un Punt)"
 msgid "Set Handle"
 msgstr "Estableix la Nansa"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Error en carregar la imatge:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Cap píxel amb transparència > 128 en la imatge..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Carrega una Màscara d'Emissió"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Esborra la Màscara d'Emissió"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partícules"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Recompte de punts generats:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Màscara d'Emissió"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Captura des d'un Píxel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Colors d'Emissió"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5314,22 +5367,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Només es poden establir punts en materials de procés ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Error en carregar la imatge:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Cap píxel amb transparència > 128 en la imatge..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Carrega una Màscara d'Emissió"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Esborra la Màscara d'Emissió"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5337,30 +5374,9 @@ msgstr "Converteix en majúscules"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partícules"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Recompte de punts generats:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Temps de generació (s):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Màscara d'Emissió"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Captura des d'un Píxel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Colors d'Emissió"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Les Cares no tenen àrea!"
@@ -5697,7 +5713,7 @@ msgstr ""
 
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 msgid "Radius:"
-msgstr ""
+msgstr "Radi:"
 
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 msgid "Polygon->UV"
@@ -5832,9 +5848,8 @@ msgid "Error writing TextFile:"
 msgstr "Error en desar TileSet!"
 
 #: editor/plugins/script_editor_plugin.cpp
-#, fuzzy
 msgid "Error: could not load file."
-msgstr "Error - No s'ha pogut crea l'Script en el sistema de fitxers."
+msgstr "Error: No s'ha pogut carregar el fitxer."
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
@@ -5842,14 +5857,12 @@ msgid "Error could not load file."
 msgstr "Error - No s'ha pogut crea l'Script en el sistema de fitxers."
 
 #: editor/plugins/script_editor_plugin.cpp
-#, fuzzy
 msgid "Error saving file!"
-msgstr "Error en desar el TileSet!"
+msgstr "Error en desar el fitxer!"
 
 #: editor/plugins/script_editor_plugin.cpp
-#, fuzzy
 msgid "Error while saving theme."
-msgstr "Error en desar el tema"
+msgstr "Error en desar el tema."
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
@@ -5898,7 +5911,8 @@ msgid "Save Theme As..."
 msgstr "Desa el Tema com a..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Referència de Classe"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6082,18 +6096,16 @@ msgid "Search Results"
 msgstr "Cerca Ajuda"
 
 #: editor/plugins/script_text_editor.cpp
-#, fuzzy
 msgid "Line"
-msgstr "Línia:"
+msgstr "Línia"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "(ignore)"
 msgstr ""
 
 #: editor/plugins/script_text_editor.cpp
-#, fuzzy
 msgid "Go to Function"
-msgstr "Vés a la Funció..."
+msgstr "Vés a la Funció"
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 msgid "Standard"
@@ -6183,9 +6195,8 @@ msgid "Trim Trailing Whitespace"
 msgstr "Retalla els espais en blanc al final"
 
 #: editor/plugins/script_text_editor.cpp
-#, fuzzy
 msgid "Convert Indent to Spaces"
-msgstr "Converteix la Sagnia en espais"
+msgstr "Converteix la Sagnia en Espais"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
@@ -6750,6 +6761,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Crea la Malla de Contorn"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Crear Polígon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Crea un Polígon de Navegació"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Crea un Polígon Oclusor"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "El camí per desar és buit!"
 
@@ -6762,19 +6793,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Sprite"
 msgstr "SpriteFrames"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Converteix a %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Crea la Malla de Contorn"
+msgid "Convert to Polygon2D"
+msgstr "Mou el Polígon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Crea un Polígon de Navegació"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Crea un Polígon Oclusor"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -6790,9 +6843,8 @@ msgid "Update Preview"
 msgstr "Previsualització"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-#, fuzzy
 msgid "Settings:"
-msgstr "Configuració"
+msgstr "Configuració:"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "ERROR: Couldn't load frame resource!"
@@ -6823,14 +6875,12 @@ msgid "(empty)"
 msgstr "(buit)"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
-#, fuzzy
 msgid "Animations:"
-msgstr "Animacions"
+msgstr "Animacions:"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
-#, fuzzy
 msgid "New Animation"
-msgstr "Animació"
+msgstr "Nova Animació"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Speed (FPS):"
@@ -6841,9 +6891,8 @@ msgid "Loop"
 msgstr "Bucle"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
-#, fuzzy
 msgid "Animation Frames:"
-msgstr "Fotogrames d'Animació"
+msgstr "Fotogrames d'Animació:"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Insert Empty (Before)"
@@ -7175,9 +7224,8 @@ msgid "Erase bitmask."
 msgstr "Elimina un Punt."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Create a new rectangle."
-msgstr "Crea Nou %s"
+msgstr "Crear un Nou Rectangle."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7299,9 +7347,8 @@ msgid "Edit Tile Bitmask"
 msgstr "Edita Filtres"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Edit Collision Polygon"
-msgstr "Edita un polígon existent:"
+msgstr "Editar Polígon de Col·lisió"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7309,9 +7356,8 @@ msgid "Edit Occlusion Polygon"
 msgstr "Edita Polígon"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Edit Navigation Polygon"
-msgstr "Crea un Polígon de Navegació"
+msgstr "Editar Polígon de Navegació"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7338,19 +7384,16 @@ msgid "Remove Tile"
 msgstr "Elimina la Plantilla"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Remove Collision Polygon"
-msgstr "Elimina el Polígon i el Punt"
+msgstr "Eliminar Polígon de Col·lisió"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Remove Occlusion Polygon"
-msgstr "Crea un Polígon Oclusor"
+msgstr "Eliminar Polígon d'Oclusió"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Remove Navigation Polygon"
-msgstr "Crea un Polígon de Navegació"
+msgstr "Eliminar Polígon de Navegació"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7367,14 +7410,12 @@ msgid "Create Collision Polygon"
 msgstr "Crea un Polígon de Navegació"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Create Occlusion Polygon"
-msgstr "Crea un Polígon Oclusor"
+msgstr "Crear Polígon d'Oclusió"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "This property can't be changed."
-msgstr "Aquesta operació no pot dur-se a terme sense cap escena."
+msgstr "Aquesta propietat no es pot canviar."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7401,6 +7442,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplica els Nodes"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Eliminar Node"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8151,9 +8197,8 @@ msgid "Action:"
 msgstr "Acció:"
 
 #: editor/project_settings_editor.cpp
-#, fuzzy
 msgid "Action"
-msgstr "Acció:"
+msgstr "Acció"
 
 #: editor/project_settings_editor.cpp
 msgid "Deadzone"
@@ -8301,18 +8346,16 @@ msgid "Suffix"
 msgstr ""
 
 #: editor/rename_dialog.cpp
-#, fuzzy
 msgid "Advanced options"
-msgstr "Opcions d'Alineament"
+msgstr "Opcions Avançades"
 
 #: editor/rename_dialog.cpp
 msgid "Substitute"
 msgstr ""
 
 #: editor/rename_dialog.cpp
-#, fuzzy
 msgid "Node name"
-msgstr "Nom del node:"
+msgstr "Nom del node"
 
 #: editor/rename_dialog.cpp
 msgid "Node's parent name, if available"
@@ -8623,10 +8666,6 @@ msgid "Open documentation"
 msgstr "Obre la Documentació en línia"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Elimina els Nodes"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Afegeix un Node Fill"
 
@@ -10516,13 +10555,17 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#~ msgid "Snap (s): "
+#~ msgstr "Pas (s): "
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Insereix Claus"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Instancia les escenes seleccionades com a filles del node seleccionat."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Avisos:"
 
diff --git a/editor/translations/cs.po b/editor/translations/cs.po
index 49075fe390..63d5bea503 100644
--- a/editor/translations/cs.po
+++ b/editor/translations/cs.po
@@ -426,13 +426,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Seskupit stopy podle uzlu nebo je zobrazit jako jednoduchý seznam."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Přichycení (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Přichytit"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Hodnota anima�ního kroku."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3794,6 +3803,11 @@ msgid "Delete Node"
 msgstr "Smazat uzel"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Odstranit uzel/uzly"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Aktivovat/Deaktivovat tuto stopu."
@@ -4752,8 +4766,34 @@ msgid "Layout"
 msgstr "Rozložení"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Vložit klí�e."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Vložit klí� (existující stopy)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Animace: vložit klí�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4823,6 +4863,52 @@ msgstr "Upravit polygon (Odstranit bod)"
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Chyba při nahrávání obrázku:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Žádný pixel s průhledností > 128 v obrázku..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Na�íst emisní masku"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Vy�istit emisní masku"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Částice"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Po�et vygenerovaných bodů:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Emisní maska"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5178,52 +5264,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Chyba při nahrávání obrázku:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Žádný pixel s průhledností > 128 v obrázku..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Na�íst emisní masku"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Vy�istit emisní masku"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Převést na CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Částice"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Po�et vygenerovaných bodů:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Čas generování (sec):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Emisní maska"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5735,7 +5784,8 @@ msgid "Save Theme As..."
 msgstr "Uložit motiv jako..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Reference třídy"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6567,6 +6617,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Vytvořit 2D mesh"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Vytvořit Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Vytvořit naviga�ní polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Vytvořit Occluder Polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite je prázdný!"
 
@@ -6579,16 +6649,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Konvertovat na 2D mesh"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Vytvořit 2D mesh"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Přesunout polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Vytvořit naviga�ní polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Vytvořit Occluder Polygon"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7188,6 +7282,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplikovat uzel/uzly"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Smazat uzel"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8360,10 +8459,6 @@ msgid "Open documentation"
 msgstr "Otevřít dokumentaci"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Odstranit uzel/uzly"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Přidat podřízený uzel"
 
@@ -10205,8 +10300,11 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
+#~ msgid "Snap (s): "
+#~ msgstr "Přichycení (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Vložit klí�e."
 
 #~ msgid "Warnings:"
 #~ msgstr "Varování:"
diff --git a/editor/translations/da.po b/editor/translations/da.po
index 5096ed924a..ee8b415fe3 100644
--- a/editor/translations/da.po
+++ b/editor/translations/da.po
@@ -434,13 +434,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Grupper spor efter node eller vis dem som almindelig liste."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+#, fuzzy
+msgid "Snap:"
 msgstr "Trin: "
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Animation trin værdi."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3865,6 +3874,11 @@ msgid "Delete Node"
 msgstr "Vælg Node"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Slå spor til/fra."
@@ -4850,8 +4864,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Anim Indsæt Nøgle"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "Anim Indsæt Nøgle"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4924,6 +4963,52 @@ msgstr "Rediger Poly (Fjern Punkt)"
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5277,22 +5362,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5300,30 +5369,9 @@ msgstr "Konverter Til %s"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5856,7 +5904,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6698,6 +6746,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Opret Ny %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Opret Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Opret Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Opret Mappe"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6710,18 +6778,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Konverter Til %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Opret Ny %s"
+msgid "Convert to Polygon2D"
+msgstr "Konverter Til %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Opret Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7333,6 +7422,11 @@ msgid "Duplicate Nodes"
 msgstr "Dublikér nøgle(r)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Vælg Node"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8523,10 +8617,6 @@ msgid "Open documentation"
 msgstr "Ã…ben Seneste"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/de.po b/editor/translations/de.po
index f14b72da05..a9f174e98e 100644
--- a/editor/translations/de.po
+++ b/editor/translations/de.po
@@ -43,7 +43,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-12 15:26+0000\n"
+"PO-Revision-Date: 2019-03-30 20:04+0000\n"
 "Last-Translator: So Wieso <sowieso@dukun.de>\n"
 "Language-Team: German <https://hosted.weblate.org/projects/godot-engine/"
 "godot/de/>\n"
@@ -52,7 +52,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 3.5.1\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -452,13 +452,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Spuren nach Node gruppieren oder nacheinander anzeigen."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Einrasten (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Einrasten"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Animationsschrittwert."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3863,6 +3872,11 @@ msgid "Delete Node"
 msgstr "Node löschen"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Node(s) löschen"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Filter ein-/ausschalten"
 
@@ -4841,8 +4855,34 @@ msgid "Layout"
 msgstr "Layout"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Schlüsselbilder einfügen."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Schlüsselbilder einfügen (Einfg)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Schlüsselbild einfügen"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4914,6 +4954,52 @@ msgstr "Polygon bearbeiten (Punkt entfernen)"
 msgid "Set Handle"
 msgstr "Wähle Griff"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Fehler beim Laden des Bilds:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Keine Pixel mit einer Transparenz > 128 im Bild..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Emissionsmaske laden"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Emissionsmaske leeren"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partikel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Anzahl generierter Punkte:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Emissionsmaske"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Von Pixel aufnehmen"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Emissionsfarben"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPU-Partikel"
@@ -5268,52 +5354,15 @@ msgstr ""
 "werden"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Fehler beim Laden des Bilds:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Keine Pixel mit einer Transparenz > 128 im Bild..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Emissionsmaske laden"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Emissionsmaske leeren"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Zu CPU-Partikeln konvertieren"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partikel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Anzahl generierter Punkte:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Erzeugungszeit (s):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Emissionsmaske"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Von Pixel aufnehmen"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Emissionsfarben"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Flächen enthalten keinen Bereich!"
@@ -5825,7 +5874,8 @@ msgid "Save Theme As..."
 msgstr "Motiv speichern als..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Klassenreferenz"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5957,11 +6007,11 @@ msgstr "Öffne Godot-Referenzdokumentation"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Dokumentation anfragen"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Die Godot-Dokumentation durch Meinungsäußerung verbessern"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6653,6 +6703,26 @@ msgid "Nameless gizmo"
 msgstr "Namenloser Anfasser"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "2D-Mesh erzeugen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Polygon3D erstellen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Kollisionspolygon erzeugen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Occluder-Polygon erzeugen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite ist leer!"
 
@@ -6667,16 +6737,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Ungültige Geometrie, Mesh kann nicht ersetzt werden."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Ungültige Geometrie, Mesh kann nicht ersetzt werden."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Ungültige Geometrie, Mesh kann nicht ersetzt werden."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Ungültige Geometrie, Mesh kann nicht ersetzt werden."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Zu 2D-Mesh umwandeln"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "2D-Mesh erzeugen"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Polygon verschieben"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Kollisionspolygon erzeugen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Occluder-Polygon erzeugen"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7264,6 +7361,11 @@ msgid "Duplicate Nodes"
 msgstr "Nodes duplizieren"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Node löschen"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Visual-Shader-Eingabetyp geändert"
 
@@ -8486,10 +8588,6 @@ msgid "Open documentation"
 msgstr "Dokumentation öffnen"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Node(s) löschen"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Node hier anhängen"
 
@@ -10390,13 +10488,16 @@ msgstr "Zuweisung an Uniform."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Varyings können nur in Vertex-Funktion zugewiesen werden."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Einrasten (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Schlüsselbilder einfügen."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Instantiiere gewählte Szene(n) als Unterobjekt des ausgewählten Nodes."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Warnungen:"
 
@@ -11929,9 +12030,6 @@ msgstr "Varyings können nur in Vertex-Funktion zugewiesen werden."
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "Unterordner kann nicht geöffnet werden:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "Schlüsselbilder einfügen (Einfg)"
-
 #~ msgid "Enable/Disable interpolation when looping animation."
 #~ msgstr "Aktivieren/Deaktivieren Interpolation, wenn Schleife aktiviert."
 
diff --git a/editor/translations/de_CH.po b/editor/translations/de_CH.po
index 55e457c169..cf2e88000d 100644
--- a/editor/translations/de_CH.po
+++ b/editor/translations/de_CH.po
@@ -430,7 +430,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Selektiere Node(s) zum Importieren aus"
 
 #: editor/animation_track_editor.cpp
@@ -438,6 +438,14 @@ msgstr "Selektiere Node(s) zum Importieren aus"
 msgid "Animation step value."
 msgstr "Animations-Node"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3805,6 +3813,11 @@ msgid "Delete Node"
 msgstr "Node(s) löschen"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Node(s) löschen"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4795,9 +4808,34 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Bild einfügen"
+msgid "Insert keys (based on mask)."
+msgstr "Bilder (innerhalb) einfügen"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim Bild einfügen"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4869,6 +4907,55 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Emissions-Maske laden"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Clear Emission Mask"
+msgstr "Inhalt der Emissions-Masken löschen"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Emission Mask"
+msgstr "Emissions-Maske setzen"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Emission Colors"
+msgstr "Emissions-Maske setzen"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5225,23 +5312,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Emissions-Maske laden"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Clear Emission Mask"
-msgstr "Inhalt der Emissions-Masken löschen"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5249,32 +5319,9 @@ msgstr "Verbindung zu Node:"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Emission Mask"
-msgstr "Emissions-Maske setzen"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Emission Colors"
-msgstr "Emissions-Maske setzen"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Flächen enthalten keinen Bereich!"
@@ -5803,7 +5850,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6636,6 +6683,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Node erstellen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Node erstellen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Node erstellen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Node erstellen"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6648,20 +6715,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr "Verbindung zu Node:"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Convert to Polygon2D"
 msgstr "Verbindung zu Node:"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
+msgid "Create CollisionPolygon2D Sibling"
 msgstr "Node erstellen"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
 msgstr ""
 
@@ -7270,6 +7358,11 @@ msgid "Duplicate Nodes"
 msgstr "Node(s) duplizieren"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Node(s) löschen"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8461,10 +8554,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Node(s) löschen"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10270,6 +10359,10 @@ msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
 #, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Bild einfügen"
+
+#, fuzzy
 #~ msgid "OrientedPathFollow only works when set as a child of a Path node."
 #~ msgstr ""
 #~ "PathFollow2D funktioniert nur, wenn sie als Unterobjekt eines Path2D "
@@ -10431,6 +10524,3 @@ msgstr ""
 
 #~ msgid "Export all files in the project directory."
 #~ msgstr "Exportiere alle Dateien in das Projektverzeichnis."
-
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "Bilder (innerhalb) einfügen"
diff --git a/editor/translations/editor.pot b/editor/translations/editor.pot
index 5f92cabbee..f9408cfbbc 100644
--- a/editor/translations/editor.pot
+++ b/editor/translations/editor.pot
@@ -399,13 +399,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3659,6 +3667,11 @@ msgid "Delete Node"
 msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4610,7 +4623,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4681,6 +4718,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5031,52 +5114,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5580,7 +5626,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6398,6 +6444,22 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6410,15 +6472,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -6989,6 +7071,10 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8138,10 +8224,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/el.po b/editor/translations/el.po
index ab99259302..b6cf0f79dc 100644
--- a/editor/translations/el.po
+++ b/editor/translations/el.po
@@ -430,13 +430,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Ομαδοποίηση κομματιών ανα κόμβο, ή εμφάνιση σε λίστα."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Κο�μπωμα (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Κο�μπωμα"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Τιμή βήματος κίνησης."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3897,6 +3906,11 @@ msgid "Delete Node"
 msgstr "Διαγ�αφή Κόμβων"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Διαγ�αφή Κόμβων"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Εναλλαγή κομματιο� on/off."
@@ -4885,8 +4899,34 @@ msgid "Layout"
 msgstr "Διάταξη"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Εισαγωγή κλειδιών."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Εισαγωγή κλειδιο� (Υπα�κτά κομμάτια)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim εισαγωγή κλειδιο�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4959,6 +4999,52 @@ msgstr "Επεγε�γασία πολυγώνου (Αφαί�εση σημείο
 msgid "Set Handle"
 msgstr "Ο�ισμός λαβής"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Σφάλμα κατά την φό�τωση εικόνας:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Δεν υπά�χουν εικονοστοιχεία με διαφάνεια >128 στην εικόνα..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Φό�τωση μάσκας εκπομπής"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Εκκαθά�ιση μάσκας εκπομπής"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Σωματίδια"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Α�ιθμός δημιου�γημένων σημείων:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Μάσκα εκπομπής"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Καταγ�αφή από εικονοστοιχείο"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Χ�ώματα εκπομπής"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "Σωματίδια CPU"
@@ -5314,52 +5400,15 @@ msgstr ""
 "ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Σφάλμα κατά την φό�τωση εικόνας:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Δεν υπά�χουν εικονοστοιχεία με διαφάνεια >128 στην εικόνα..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Φό�τωση μάσκας εκπομπής"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Εκκαθά�ιση μάσκας εκπομπής"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Μετατ�οπή σε σωματίδια CPU"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Σωματίδια"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Α�ιθμός δημιου�γημένων σημείων:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Χ�όνος  πα�αγωγής (sec):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Μάσκα εκπομπής"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Καταγ�αφή από εικονοστοιχείο"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Χ�ώματα εκπομπής"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Οι επιφάνειες έχουν μηδενικό εμβαδόν!"
@@ -5897,7 +5946,8 @@ msgid "Save Theme As..."
 msgstr "Αποθήκευση θέματος ως..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Αναφο�ά κλασεων"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6750,6 +6800,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Δημιου�γία πλέγματος πε�ιγ�άμματος"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Δημιουγία πολυγώνου"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Δημιου�γία πολυγώνου πλοήγησης"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Δημιου�γία πολυγώνου εμποδίου"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Η διαδ�ομή αποθήκευσης είναι άδεια!"
 
@@ -6762,19 +6832,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Sprite"
 msgstr "Kα�έ Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Μετατ�οπή σε %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Δημιου�γία πλέγματος πε�ιγ�άμματος"
+msgid "Convert to Polygon2D"
+msgstr "Μετακίνηση πολυγώνου"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Δημιου�γία πολυγώνου πλοήγησης"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Δημιου�γία πολυγώνου εμποδίου"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7402,6 +7494,11 @@ msgid "Duplicate Nodes"
 msgstr "Διπλασιασμός κόμβων"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Διαγ�αφή Κόμβων"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8635,10 +8732,6 @@ msgid "Open documentation"
 msgstr "Άνοιγμα ηλεκτ�ονικής τεκμη�ίωσης της Godot"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Διαγ�αφή Κόμβων"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Π�οσθήκη κόμβου ως παιδί"
 
@@ -10536,14 +10629,17 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#~ msgid "Snap (s): "
+#~ msgstr "Κο�μπωμα (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Εισαγωγή κλειδιών."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Δημιου�γία στιγμιοτ�πων των επιλεγμένων σκηνών ως παιδιά του επιλεγμένου "
 #~ "κόμβου."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Π�οειδοποιήσεις:"
 
diff --git a/editor/translations/es.po b/editor/translations/es.po
index a8b37f2b4f..f66b06cccd 100644
--- a/editor/translations/es.po
+++ b/editor/translations/es.po
@@ -42,8 +42,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-24 17:38+0000\n"
-"Last-Translator: Javier Ocampos <xavier.ocampos@gmail.com>\n"
+"PO-Revision-Date: 2019-04-19 16:33+0000\n"
+"Last-Translator: eon-s <emanuel.segretin@gmail.com>\n"
 "Language-Team: Spanish <https://hosted.weblate.org/projects/godot-engine/"
 "godot/es/>\n"
 "Language: es\n"
@@ -453,13 +453,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Agrupar las pistas por nodo o mostrarlas como una lista plana."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Snap (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Snap"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valor de step de animación."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -1434,13 +1443,13 @@ msgstr ""
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
 #: platform/osx/export/export.cpp platform/uwp/export/export.cpp
 msgid "Custom debug template not found."
-msgstr "No se ha encontrado la plantilla de depuración personalizada."
+msgstr "Plantilla debug personalizada no encontrada."
 
 #: editor/editor_export.cpp platform/android/export/export.cpp
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
 #: platform/osx/export/export.cpp platform/uwp/export/export.cpp
 msgid "Custom release template not found."
-msgstr "No se ha encontrado ninguna plantilla de lanzamineto personalizada."
+msgstr "Plantilla release personalizada no encontrada."
 
 #: editor/editor_export.cpp platform/javascript/export/export.cpp
 msgid "Template file not found:"
@@ -2513,7 +2522,7 @@ msgstr "Documentación en línea"
 
 #: editor/editor_node.cpp
 msgid "Q&A"
-msgstr "P&R"
+msgstr "Preguntas y respuestas"
 
 #: editor/editor_node.cpp
 msgid "Issue Tracker"
@@ -3861,6 +3870,11 @@ msgid "Delete Node"
 msgstr "Eliminar Nodo"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Eliminar nodo(s)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Act./Desact. Filtro On/Off"
 
@@ -4841,8 +4855,34 @@ msgid "Layout"
 msgstr "Disposición"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Insertar claves."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Insertar Claves (Ins)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Insertar clave de animación"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4914,6 +4954,52 @@ msgstr "Editar polígono (quitar punto)"
 msgid "Set Handle"
 msgstr "Establecer handle"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Error al cargar la imagen:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "No hay píxeles con transparencia > 128 en la imagen..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Cargar máscara de emisión"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Borrar máscara de emisión"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partículas"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Conteo de puntos generados:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Máscara de Emisión"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Capturar desde píxel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Colores de Emisión"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5271,52 +5357,15 @@ msgstr ""
 "Solo se puede asignar un punto a un material de procesado ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Error al cargar la imagen:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "No hay píxeles con transparencia > 128 en la imagen..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Cargar máscara de emisión"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Borrar máscara de emisión"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Convertir a CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partículas"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Conteo de puntos generados:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Tiempo de generación (seg):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Máscara de emisión"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Capturar desde píxel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Colores de emisión"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "¡Las caras no contienen área!"
@@ -5828,7 +5877,8 @@ msgid "Save Theme As..."
 msgstr "Guardar tema como..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Referencia de clase"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5960,11 +6010,11 @@ msgstr "Abrir documentación online de Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Solicitar Documentos"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Ayuda a mejorar la documentación de Godot dando feedback"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6653,6 +6703,26 @@ msgid "Nameless gizmo"
 msgstr "Gizmo sin nombre"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Crear Mesh 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Crear Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Crear Polígono de Colisión"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Crear polígono oclusor"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "¡El sprite esta vacío!"
 
@@ -6665,16 +6735,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Geometría inválida, no se puede reemplazar por mesh."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Geometría inválida, no se puede reemplazar por mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Geometría inválida, no se puede reemplazar por mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Geometría inválida, no se puede reemplazar por mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Convertir a Mesh 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Crear Mesh 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Mover polígono"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Crear Polígono de Colisión"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Crear polígono oclusor"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7260,6 +7357,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplicar Nodos"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Eliminar Nodo"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Cambiar Tipo de Entrada del Visual Shader"
 
@@ -8483,10 +8585,6 @@ msgid "Open documentation"
 msgstr "Abrir documentación"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Eliminar nodo(s)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Añadir nodo hijo"
 
@@ -10385,13 +10483,16 @@ msgstr "Asignación a uniform."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Solo se pueden asignar variaciones en funciones de vértice."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Snap (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Insertar claves."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Instanciar la(s) escena(s) seleccionadas como hijas del nodo seleccionado."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Advertencias:"
 
@@ -11964,9 +12065,6 @@ msgstr "Solo se pueden asignar variaciones en funciones de vértice."
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "No se puede acceder al subdir:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "Insertar Claves (Ins)"
-
 #~ msgid "Top (Num7)"
 #~ msgstr "Cima (Num7)"
 
diff --git a/editor/translations/es_AR.po b/editor/translations/es_AR.po
index 4d794dfdda..e27603d799 100644
--- a/editor/translations/es_AR.po
+++ b/editor/translations/es_AR.po
@@ -14,8 +14,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-24 16:57+0000\n"
-"Last-Translator: Javier Ocampos <xavier.ocampos@gmail.com>\n"
+"PO-Revision-Date: 2019-03-30 20:04+0000\n"
+"Last-Translator: Lisandro Lorea <lisandrolorea@gmail.com>\n"
 "Language-Team: Spanish (Argentina) <https://hosted.weblate.org/projects/"
 "godot-engine/godot/es_AR/>\n"
 "Language: es_AR\n"
@@ -423,13 +423,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Agrupar las pistas por nodo o mostrarlas como una lista plana."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Ajuste (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Esnapear"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valor de paso de animación."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3827,6 +3836,11 @@ msgid "Delete Node"
 msgstr "Eliminar Nodo"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Eliminar Nodo(s)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Act./Desact. Filtro On/Off"
 
@@ -4806,8 +4820,34 @@ msgid "Layout"
 msgstr "Layout"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Insertar claves."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Insertar Claves (Ins)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Insertar Clave de Animación"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4879,6 +4919,52 @@ msgstr "Editar Polígono (Remover Punto)"
 msgid "Set Handle"
 msgstr "Setear Handle"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Error al cargar la imagen:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Sin pixeles con transparencia > 128 en imagen..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Cargar Máscara de Emisión"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Limpiar Máscara de Emisión"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partículas"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Conteo de Puntos Generados:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Máscara de Emisión"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Capturar desde Pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Colores de Emisión"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5231,52 +5317,15 @@ msgstr ""
 "Solo se puede setear un punto en un material de proceso ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Error al cargar la imagen:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Sin pixeles con transparencia > 128 en imagen..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Cargar Máscara de Emisión"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Limpiar Máscara de Emisión"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Convertir A CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partículas"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Conteo de Puntos Generados:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Tiempo de Generación (seg):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Máscara de Emisión"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Capturar desde Pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Colores de Emisión"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Las caras no contienen area!"
@@ -5788,7 +5837,8 @@ msgid "Save Theme As..."
 msgstr "Guardar Tema Como..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Referencia de Clases"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5920,11 +5970,11 @@ msgstr "Abrir la documentación online de Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Solicitar Docum."
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Ayudá a mejorar la documentación de Godot dando feedback"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6613,6 +6663,26 @@ msgid "Nameless gizmo"
 msgstr "Gizmo sin nombre"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Crear Mesh 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Crear Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Crear Polígono de Colisión"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Crear Polígono Oclusor"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "El sprite esta vacío!"
 
@@ -6625,16 +6695,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Geometría inválida, no se puede reemplazar por mesh."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Geometría inválida, no se puede reemplazar por mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Geometría inválida, no se puede reemplazar por mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Geometría inválida, no se puede reemplazar por mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Convertir A Mesh 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Crear Mesh 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Mover Polígono"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Crear Polígono de Colisión"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Crear Polígono Oclusor"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7219,6 +7316,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplicar Nodos"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Eliminar Nodo"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Se cambió el Tipo de Entrada de Visual Shader"
 
@@ -8444,10 +8546,6 @@ msgid "Open documentation"
 msgstr "Abrir documentación"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Eliminar Nodo(s)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Agregar Nodo Hijo"
 
@@ -10337,13 +10435,16 @@ msgstr "Asignación a uniform."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Solo se pueden asignar variaciones en funciones de vértice."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Ajuste (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Insertar claves."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Instanciar la(s) escena(s) seleccionadas como hijas del nodo seleccionado."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Advertencias:"
 
@@ -11892,9 +11993,6 @@ msgstr "Solo se pueden asignar variaciones en funciones de vértice."
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "No se puede acceder al subdir:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "Insertar Claves (Ins)"
-
 #~ msgid "Top (Num7)"
 #~ msgstr "Cima (Num7)"
 
diff --git a/editor/translations/et.po b/editor/translations/et.po
index a58094bf47..455623f6aa 100644
--- a/editor/translations/et.po
+++ b/editor/translations/et.po
@@ -399,13 +399,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3659,6 +3667,11 @@ msgid "Delete Node"
 msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4610,7 +4623,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4681,6 +4718,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5031,52 +5114,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5580,7 +5626,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6398,6 +6444,22 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6410,15 +6472,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -6989,6 +7071,10 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8138,10 +8224,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/extract.py b/editor/translations/extract.py
index fd9b1183c4..2075bd5f3c 100755
--- a/editor/translations/extract.py
+++ b/editor/translations/extract.py
@@ -60,7 +60,7 @@ def process_file(f, fname):
     lc = 1
     while (l):
 
-        patterns = ['RTR(\"', 'TTR(\"']
+        patterns = ['RTR(\"', 'TTR(\"','TTRC(\"']
         idx = 0
         pos = 0
         while (pos >= 0):
diff --git a/editor/translations/fa.po b/editor/translations/fa.po
index 6548423140..445b941a96 100644
--- a/editor/translations/fa.po
+++ b/editor/translations/fa.po
@@ -441,7 +441,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "گام(ها):"
 
 #: editor/animation_track_editor.cpp
@@ -449,6 +449,14 @@ msgstr "گام(ها):"
 msgid "Animation step value."
 msgstr "گره انیمیشن"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3837,6 +3845,11 @@ msgid "Delete Node"
 msgstr "حذ� گره(ها)"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "حذ� گره(ها)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4826,8 +4839,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "کلید را در انیمیشن درج کن"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "کلید را در انیمیشن درج کن"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4900,6 +4938,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5254,22 +5338,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5277,30 +5345,9 @@ msgstr "اتصال به گره:"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5832,7 +5879,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6686,6 +6733,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "ساختن %s جدید"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "انتخاب شده را تغییر مقیاس بده"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "انتخاب شده را تغییر مقیاس بده"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "ساختن پوشه"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "مسیر خالی است"
 
@@ -6698,18 +6765,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "اتصال به گره:"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "ساختن %s جدید"
+msgid "Convert to Polygon2D"
+msgstr "اتصال به گره:"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "انتخاب شده را تغییر مقیاس بده"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7325,6 +7413,11 @@ msgid "Duplicate Nodes"
 msgstr "تکرار کلید‌های انیمیشن"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "حذ� گره(ها)"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8527,10 +8620,6 @@ msgid "Open documentation"
 msgstr "شمارش ها"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "حذ� گره(ها)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "ا�زودن گره �رزند"
 
diff --git a/editor/translations/fi.po b/editor/translations/fi.po
index 5e0b28db44..117aaa6561 100644
--- a/editor/translations/fi.po
+++ b/editor/translations/fi.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-12 15:25+0000\n"
+"PO-Revision-Date: 2019-04-03 22:06+0000\n"
 "Last-Translator: Tapani Niemi <tapani.niemi@kapsi.fi>\n"
 "Language-Team: Finnish <https://hosted.weblate.org/projects/godot-engine/"
 "godot/fi/>\n"
@@ -22,7 +22,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 3.5.1\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -416,13 +416,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Ryhmitä raidat solmujen mukaan tai näytä ne tavallisena luettelona."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Askellus (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Tartu"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Animaation askelluksen arvo."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3801,6 +3810,11 @@ msgid "Delete Node"
 msgstr "Poista solmu"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Poista solmu(t)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Kytke suodin päälle/pois"
 
@@ -4777,8 +4791,34 @@ msgid "Layout"
 msgstr "Asettelu"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Lisää avainruutuja."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Lisää avainruutu (olemassa olevat raidat)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Animaatio: Lisää avain"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4850,6 +4890,52 @@ msgstr "Muokkaa polygonia (poista piste)"
 msgid "Set Handle"
 msgstr "Aseta kahva"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Virhe ladattaessa kuvaa:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Kuvassa ei ole pikseleitä, joiden läpinäkyvyys on enemmän kuin 128…"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Lataa emissiomaski"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Tyhjennä emissiomaski"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partikkelit"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Luotujen pisteiden määrä:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Emission maski"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Nappaa pikselistä"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Emission väri"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUPartikkelit"
@@ -5203,52 +5289,15 @@ msgstr ""
 "Piste voidaan asettaa ainoastaan ParticlesMaterial käsittelyn materiaaliin"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Virhe ladattaessa kuvaa:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Kuvassa ei ole pikseleitä, joiden läpinäkyvyys on enemmän kuin 128…"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Lataa emissiomaski"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Tyhjennä emissiomaski"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Muunna CPUPartikkeleiksi"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partikkelit"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Luotujen pisteiden määrä:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Luontiaika (s):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Emission maski"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Nappaa pikselistä"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Emission väri"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Pinnat eivät sisällä aluetta!"
@@ -5759,7 +5808,8 @@ msgid "Save Theme As..."
 msgstr "Tallenna teema nimellä..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Luokan referenssi"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5891,11 +5941,11 @@ msgstr "Avaa Godotin online-dokumentaatio"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Pyydä dokumentaatiota"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Auta parantamaan Godotin dokumentaatiota antamalla palautetta"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6584,6 +6634,26 @@ msgid "Nameless gizmo"
 msgstr "Nimetön muokkain"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Luo 2D-mesh"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Luo Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Luo törmäyspolygoni"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Luo peittopolygoni"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite on tyhjä!"
 
@@ -6596,16 +6666,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Virheellinen geometria, ei voida korvata meshillä."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Virheellinen geometria, ei voida korvata meshillä."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Virheellinen geometria, ei voida korvata meshillä."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Virheellinen geometria, ei voida korvata meshillä."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Muunna 2D-meshiksi"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Luo 2D-mesh"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Siirrä polygonia"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Luo törmäyspolygoni"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Luo peittopolygoni"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7190,6 +7287,11 @@ msgid "Duplicate Nodes"
 msgstr "Kahdenna solmut"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Poista solmu"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Visual Shaderin syötteen tyyppi vaihdettu"
 
@@ -8406,10 +8508,6 @@ msgid "Open documentation"
 msgstr "Avaa dokumentaatio"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Poista solmu(t)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Lisää alisolmu"
 
@@ -10279,12 +10377,15 @@ msgstr "Sijoitus uniformille."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Varying tyypin voi sijoittaa vain vertex-funktiossa."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Askellus (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Lisää avainruutuja."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Luo valituista skeneistä ilmentymä valitun solmun alle."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Varoitukset:"
 
diff --git a/editor/translations/fil.po b/editor/translations/fil.po
new file mode 100644
index 0000000000..aece9febdd
--- /dev/null
+++ b/editor/translations/fil.po
@@ -0,0 +1,9955 @@
+# Filipino translation of the Godot Engine editor
+# Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.
+# Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)
+# This file is distributed under the same license as the Godot source code.
+# Marco Santos <enum.scima@gmail.com>, 2019.
+# Amado Wilkins <epicalert68@gmail.com>, 2019.
+msgid ""
+msgstr ""
+"Project-Id-Version: Godot Engine editor\n"
+"PO-Revision-Date: 2019-04-07 08:04+0000\n"
+"Last-Translator: Amado Wilkins <epicalert68@gmail.com>\n"
+"Language-Team: Filipino <https://hosted.weblate.org/projects/godot-engine/"
+"godot/fil/>\n"
+"Language: fil\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8-bit\n"
+"Plural-Forms: nplurals=2; plural=n != 1 && n != 2 && n != 3 && (n % 10 == 4 "
+"|| n % 10 == 6 || n % 10 == 9);\n"
+"X-Generator: Weblate 3.6-dev\n"
+
+#: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
+#: modules/visual_script/visual_script_builtin_funcs.cpp
+msgid "Invalid type argument to convert(), use TYPE_* constants."
+msgstr ""
+
+#: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
+#: modules/mono/glue/gd_glue.cpp
+#: modules/visual_script/visual_script_builtin_funcs.cpp
+msgid "Not enough bytes for decoding bytes, or invalid format."
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "Invalid input %i (not passed) in expression"
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "self can't be used because instance is null (not passed)"
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "Invalid operands to operator %s, %s and %s."
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "Invalid index of type %s for base type %s"
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "Invalid named index '%s' for base type %s"
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "Invalid arguments to construct '%s'"
+msgstr ""
+
+#: core/math/expression.cpp
+msgid "On call to '%s':"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Free"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+msgid "Balanced"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+msgid "Mirror"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+msgid "Insert Key Here"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+msgid "Duplicate Selected Key(s)"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+msgid "Delete Selected Key(s)"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp
+msgid "Add Bezier Point"
+msgstr "Idagdag Ang Bezier Point"
+
+#: editor/animation_bezier_editor.cpp
+msgid "Move Bezier Points"
+msgstr "Ilipat Ang Mga Bezier Points"
+
+#: editor/animation_bezier_editor.cpp editor/animation_track_editor.cpp
+msgid "Anim Duplicate Keys"
+msgstr ""
+
+#: editor/animation_bezier_editor.cpp editor/animation_track_editor.cpp
+msgid "Anim Delete Keys"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Change Keyframe Time"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Change Transition"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Change Transform"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Change Keyframe Value"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Change Call"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Change Animation Length"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Change Animation Loop"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Property Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "3D Transform Track"
+msgstr "3D Transform Track"
+
+#: editor/animation_track_editor.cpp
+msgid "Call Method Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Bezier Curve Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Audio Playback Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Animation Playback Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Add Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Animation Length Time (seconds)"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Animation Looping"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Functions:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Audio Clips:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Clips:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Change Track Path"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Toggle this track on/off."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Update Mode (How this property is set)"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Interpolation Mode"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Loop Wrap Mode (Interpolate end with beginning on loop)"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Remove this track."
+msgstr "Tanggalin ang track na ito."
+
+#: editor/animation_track_editor.cpp
+msgid "Time (s): "
+msgstr "Oras (s): "
+
+#: editor/animation_track_editor.cpp
+msgid "Toggle Track Enabled"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Continuous"
+msgstr "Tuloy-tuloy"
+
+#: editor/animation_track_editor.cpp
+msgid "Discrete"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Trigger"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Capture"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Nearest"
+msgstr "Pinakamalapit"
+
+#: editor/animation_track_editor.cpp editor/plugins/curve_editor_plugin.cpp
+#: editor/property_editor.cpp
+msgid "Linear"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Cubic"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Clamp Loop Interp"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Wrap Loop Interp"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert Key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Duplicate Key(s)"
+msgstr "Kopyahin Ang (Mga) Key(s)"
+
+#: editor/animation_track_editor.cpp
+msgid "Delete Key(s)"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Change Animation Update Mode"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Change Animation Interpolation Mode"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Change Animation Loop Mode"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Remove Anim Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Create NEW track for %s and insert key?"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Create %d NEW tracks and insert keys?"
+msgstr ""
+
+#: editor/animation_track_editor.cpp editor/create_dialog.cpp
+#: editor/editor_audio_buses.cpp editor/editor_plugin_settings.cpp
+#: editor/plugin_config_dialog.cpp
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp editor/script_create_dialog.cpp
+msgid "Create"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Insert"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "AnimationPlayer can't animate itself, only other players."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Create & Insert"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Insert Track & Key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Insert Key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Change Animation Step"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Rearrange Tracks"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Transform tracks only apply to Spatial-based nodes."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid ""
+"Audio tracks can only point to nodes of type:\n"
+"-AudioStreamPlayer\n"
+"-AudioStreamPlayer2D\n"
+"-AudioStreamPlayer3D"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Animation tracks can only point to AnimationPlayer nodes."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "An animation player can't animate itself, only other players."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Not possible to add a new track without a root"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Add Bezier Track"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Track path is invalid, so can't add a key."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Track is not of type Spatial, can't insert key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Add Transform Track Key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Add Track Key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Track path is invalid, so can't add a method key."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Add Method Track Key"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Method not found in object: "
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Move Keys"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Clipboard is empty"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Paste Tracks"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim Scale Keys"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid ""
+"This option does not work for Bezier editing, as it's only a single track."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Only show tracks from nodes selected in tree."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Group tracks by node or display them as plain list."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Snap:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Animation step value."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
+#: editor/animation_track_editor.cpp editor/editor_properties.cpp
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp
+#: editor/plugins/shader_editor_plugin.cpp editor/plugins/text_editor.cpp
+#: editor/project_manager.cpp editor/project_settings_editor.cpp
+#: editor/property_editor.cpp modules/visual_script/visual_script_editor.cpp
+msgid "Edit"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Animation properties."
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Copy Tracks"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Scale Selection"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Scale From Cursor"
+msgstr ""
+
+#: editor/animation_track_editor.cpp modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Duplicate Selection"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Duplicate Transposed"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Delete Selection"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Go to Next Step"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Go to Previous Step"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Optimize Animation"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Clean-Up Animation"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Pick the node that will be animated:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Use Bezier Curves"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Anim. Optimizer"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Max. Linear Error:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Max. Angular Error:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Max Optimizable Angle:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Optimize"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Remove invalid keys"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Remove unresolved and empty tracks"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Clean-up all animations"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Clean-Up Animation(s) (NO UNDO!)"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Clean-Up"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Scale Ratio:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "Select tracks to copy:"
+msgstr ""
+
+#: editor/animation_track_editor.cpp editor/editor_properties.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp editor/property_editor.cpp
+#: scene/gui/line_edit.cpp scene/gui/text_edit.cpp
+msgid "Copy"
+msgstr ""
+
+#: editor/animation_track_editor_plugins.cpp
+msgid "Add Audio Track Clip"
+msgstr ""
+
+#: editor/animation_track_editor_plugins.cpp
+msgid "Change Audio Track Clip Start Offset"
+msgstr ""
+
+#: editor/animation_track_editor_plugins.cpp
+msgid "Change Audio Track Clip End Offset"
+msgstr ""
+
+#: editor/array_property_edit.cpp
+msgid "Resize Array"
+msgstr ""
+
+#: editor/array_property_edit.cpp
+msgid "Change Array Value Type"
+msgstr ""
+
+#: editor/array_property_edit.cpp
+msgid "Change Array Value"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Go to Line"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Line Number:"
+msgstr ""
+
+#: editor/code_editor.cpp editor/editor_help.cpp
+msgid "No Matches"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Replaced %d occurrence(s)."
+msgstr ""
+
+#: editor/code_editor.cpp editor/find_in_files.cpp
+msgid "Match Case"
+msgstr ""
+
+#: editor/code_editor.cpp editor/find_in_files.cpp
+msgid "Whole Words"
+msgstr ""
+
+#: editor/code_editor.cpp editor/rename_dialog.cpp
+msgid "Replace"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Replace All"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Selection Only"
+msgstr ""
+
+#: editor/code_editor.cpp editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/texture_region_editor_plugin.cpp
+#: editor/plugins/tile_set_editor_plugin.cpp scene/gui/graph_edit.cpp
+msgid "Zoom In"
+msgstr ""
+
+#: editor/code_editor.cpp editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/texture_region_editor_plugin.cpp
+#: editor/plugins/tile_set_editor_plugin.cpp scene/gui/graph_edit.cpp
+msgid "Zoom Out"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Reset Zoom"
+msgstr ""
+
+#: editor/code_editor.cpp modules/mono/editor/mono_bottom_panel.cpp
+msgid "Warnings"
+msgstr ""
+
+#: editor/code_editor.cpp
+msgid "Line and column numbers."
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Method in target Node must be specified!"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid ""
+"Target method not found! Specify a valid method or attach a script to target "
+"Node."
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Connect To Node:"
+msgstr ""
+
+#: editor/connections_dialog.cpp editor/editor_autoload_settings.cpp
+#: editor/groups_editor.cpp editor/plugins/item_list_editor_plugin.cpp
+#: editor/plugins/theme_editor_plugin.cpp editor/project_settings_editor.cpp
+msgid "Add"
+msgstr ""
+
+#: editor/connections_dialog.cpp editor/dependency_editor.cpp
+#: editor/groups_editor.cpp editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/theme_editor_plugin.cpp editor/project_manager.cpp
+#: editor/project_settings_editor.cpp
+msgid "Remove"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Add Extra Call Argument:"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Extra Call Arguments:"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Path to Node:"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Make Function"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Deferred"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Oneshot"
+msgstr ""
+
+#: editor/connections_dialog.cpp editor/dependency_editor.cpp
+#: editor/export_template_manager.cpp editor/groups_editor.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp editor/project_export.cpp
+#: editor/project_settings_editor.cpp editor/property_editor.cpp
+#: editor/run_settings_dialog.cpp editor/settings_config_dialog.cpp
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Close"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Connect"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Connect '%s' to '%s'"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Disconnect '%s' from '%s'"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Disconnect all from signal: '%s'"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Connect..."
+msgstr ""
+
+#: editor/connections_dialog.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Disconnect"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Connect Signal: "
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Edit Connection: "
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Are you sure you want to remove all connections from the \"%s\" signal?"
+msgstr ""
+
+#: editor/connections_dialog.cpp editor/editor_help.cpp editor/node_dock.cpp
+msgid "Signals"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Are you sure you want to remove all connections from this signal?"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Disconnect All"
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Edit..."
+msgstr ""
+
+#: editor/connections_dialog.cpp
+msgid "Go To Method"
+msgstr ""
+
+#: editor/create_dialog.cpp
+msgid "Change %s Type"
+msgstr ""
+
+#: editor/create_dialog.cpp editor/project_settings_editor.cpp
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change"
+msgstr ""
+
+#: editor/create_dialog.cpp
+msgid "Create New %s"
+msgstr ""
+
+#: editor/create_dialog.cpp editor/editor_file_dialog.cpp
+#: editor/filesystem_dock.cpp
+msgid "Favorites:"
+msgstr ""
+
+#: editor/create_dialog.cpp editor/editor_file_dialog.cpp
+msgid "Recent:"
+msgstr ""
+
+#: editor/create_dialog.cpp editor/plugins/asset_library_editor_plugin.cpp
+#: editor/plugins/script_editor_plugin.cpp editor/project_manager.cpp
+#: editor/property_selector.cpp editor/quick_open.cpp
+#: modules/visual_script/visual_script_property_selector.cpp
+msgid "Search:"
+msgstr ""
+
+#: editor/create_dialog.cpp editor/plugins/script_editor_plugin.cpp
+#: editor/property_selector.cpp editor/quick_open.cpp
+#: modules/visual_script/visual_script_property_selector.cpp
+msgid "Matches:"
+msgstr ""
+
+#: editor/create_dialog.cpp editor/plugin_config_dialog.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp editor/property_selector.cpp
+#: modules/visual_script/visual_script_property_selector.cpp
+msgid "Description:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Search Replacement For:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Dependencies For:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid ""
+"Scene '%s' is currently being edited.\n"
+"Changes will not take effect unless reloaded."
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid ""
+"Resource '%s' is in use.\n"
+"Changes will take effect when reloaded."
+msgstr ""
+
+#: editor/dependency_editor.cpp
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Dependencies"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Resource"
+msgstr ""
+
+#: editor/dependency_editor.cpp editor/editor_autoload_settings.cpp
+#: editor/project_settings_editor.cpp editor/script_create_dialog.cpp
+msgid "Path"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Dependencies:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Fix Broken"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Dependency Editor"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Search Replacement Resource:"
+msgstr ""
+
+#: editor/dependency_editor.cpp editor/editor_file_dialog.cpp
+#: editor/editor_help_search.cpp editor/editor_node.cpp
+#: editor/filesystem_dock.cpp editor/plugins/script_editor_plugin.cpp
+#: editor/property_selector.cpp editor/quick_open.cpp
+#: editor/script_create_dialog.cpp
+#: modules/visual_script/visual_script_property_selector.cpp
+#: scene/gui/file_dialog.cpp
+msgid "Open"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Owners Of:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Remove selected files from the project? (no undo)"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid ""
+"The files being removed are required by other resources in order for them to "
+"work.\n"
+"Remove them anyway? (no undo)"
+msgstr ""
+
+#: editor/dependency_editor.cpp editor/export_template_manager.cpp
+msgid "Cannot remove:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Error loading:"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Load failed due to missing dependencies:"
+msgstr ""
+
+#: editor/dependency_editor.cpp editor/editor_node.cpp
+msgid "Open Anyway"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Which action should be taken?"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Fix Dependencies"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Errors loading!"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Permanently delete %d item(s)? (No undo!)"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Owns"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Resources Without Explicit Ownership:"
+msgstr ""
+
+#: editor/dependency_editor.cpp editor/editor_node.cpp
+msgid "Orphan Resource Explorer"
+msgstr ""
+
+#: editor/dependency_editor.cpp
+msgid "Delete selected files?"
+msgstr ""
+
+#: editor/dependency_editor.cpp editor/editor_audio_buses.cpp
+#: editor/editor_file_dialog.cpp editor/editor_node.cpp
+#: editor/filesystem_dock.cpp editor/plugins/item_list_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp editor/project_export.cpp
+#: editor/project_settings_editor.cpp editor/scene_tree_dock.cpp
+msgid "Delete"
+msgstr ""
+
+#: editor/dictionary_property_edit.cpp
+msgid "Change Dictionary Key"
+msgstr ""
+
+#: editor/dictionary_property_edit.cpp
+msgid "Change Dictionary Value"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Thanks from the Godot community!"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Godot Engine contributors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Project Founders"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Lead Developer"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Project Manager "
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Developers"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Authors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Platinum Sponsors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Gold Sponsors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Mini Sponsors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Gold Donors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Silver Donors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Bronze Donors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Donors"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "License"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Thirdparty License"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid ""
+"Godot Engine relies on a number of thirdparty free and open source "
+"libraries, all compatible with the terms of its MIT license. The following "
+"is an exhaustive list of all such thirdparty components with their "
+"respective copyright statements and license terms."
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "All Components"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Components"
+msgstr ""
+
+#: editor/editor_about.cpp
+msgid "Licenses"
+msgstr ""
+
+#: editor/editor_asset_installer.cpp editor/project_manager.cpp
+msgid "Error opening package file, not in zip format."
+msgstr ""
+
+#: editor/editor_asset_installer.cpp
+msgid "Uncompressing Assets"
+msgstr ""
+
+#: editor/editor_asset_installer.cpp editor/project_manager.cpp
+msgid "Package installed successfully!"
+msgstr ""
+
+#: editor/editor_asset_installer.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Success!"
+msgstr ""
+
+#: editor/editor_asset_installer.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Install"
+msgstr ""
+
+#: editor/editor_asset_installer.cpp
+msgid "Package Installer"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Speakers"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Add Effect"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Rename Audio Bus"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Change Audio Bus Volume"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Toggle Audio Bus Solo"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Toggle Audio Bus Mute"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Toggle Audio Bus Bypass Effects"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Select Audio Bus Send"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Add Audio Bus Effect"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Move Bus Effect"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Delete Bus Effect"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Audio Bus, Drag and Drop to rearrange."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Solo"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Mute"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Bypass"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Bus options"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp editor/filesystem_dock.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp editor/scene_tree_dock.cpp
+msgid "Duplicate"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Reset Volume"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Delete Effect"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Audio"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Add Audio Bus"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Master bus can't be deleted!"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Delete Audio Bus"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Duplicate Audio Bus"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Reset Bus Volume"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Move Audio Bus"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Save Audio Bus Layout As..."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Location for New Layout..."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Open Audio Bus Layout"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "There is no 'res://default_bus_layout.tres' file."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Invalid file, not an audio bus layout."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Add Bus"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Add a new Audio Bus to this layout."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp editor/editor_properties.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp editor/property_editor.cpp
+#: editor/script_create_dialog.cpp
+msgid "Load"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Load an existing Bus Layout."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Save As"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Save this Bus Layout to a file."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp editor/import_dock.cpp
+msgid "Load Default"
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Load the default Bus Layout."
+msgstr ""
+
+#: editor/editor_audio_buses.cpp
+msgid "Create a new Bus Layout."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Invalid name."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Valid characters:"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Invalid name. Must not collide with an existing engine class name."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Invalid name. Must not collide with an existing buit-in type name."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Invalid name. Must not collide with an existing global constant name."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Autoload '%s' already exists!"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Rename Autoload"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Toggle AutoLoad Globals"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Move Autoload"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Remove Autoload"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Enable"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Rearrange Autoloads"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Invalid Path."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "File does not exist."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Not in resource path."
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Add AutoLoad"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp editor/editor_file_dialog.cpp
+#: editor/plugins/animation_tree_editor_plugin.cpp scene/gui/file_dialog.cpp
+msgid "Path:"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Node Name:"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp editor/editor_help_search.cpp
+#: editor/editor_profiler.cpp editor/settings_config_dialog.cpp
+msgid "Name"
+msgstr ""
+
+#: editor/editor_autoload_settings.cpp
+msgid "Singleton"
+msgstr ""
+
+#: editor/editor_data.cpp
+msgid "Updating Scene"
+msgstr ""
+
+#: editor/editor_data.cpp
+msgid "Storing local changes..."
+msgstr ""
+
+#: editor/editor_data.cpp
+msgid "Updating scene..."
+msgstr ""
+
+#: editor/editor_data.cpp editor/editor_properties.cpp
+msgid "[empty]"
+msgstr ""
+
+#: editor/editor_data.cpp
+msgid "[unsaved]"
+msgstr ""
+
+#: editor/editor_dir_dialog.cpp
+msgid "Please select a base directory first"
+msgstr ""
+
+#: editor/editor_dir_dialog.cpp
+msgid "Choose a Directory"
+msgstr ""
+
+#: editor/editor_dir_dialog.cpp editor/editor_file_dialog.cpp
+#: editor/filesystem_dock.cpp scene/gui/file_dialog.cpp
+msgid "Create Folder"
+msgstr ""
+
+#: editor/editor_dir_dialog.cpp editor/editor_file_dialog.cpp
+#: editor/editor_plugin_settings.cpp editor/filesystem_dock.cpp
+#: editor/plugins/theme_editor_plugin.cpp editor/project_export.cpp
+#: scene/gui/file_dialog.cpp
+msgid "Name:"
+msgstr ""
+
+#: editor/editor_dir_dialog.cpp editor/editor_file_dialog.cpp
+#: editor/filesystem_dock.cpp scene/gui/file_dialog.cpp
+msgid "Could not create folder."
+msgstr ""
+
+#: editor/editor_dir_dialog.cpp
+msgid "Choose"
+msgstr ""
+
+#: editor/editor_export.cpp
+msgid "Storing File:"
+msgstr ""
+
+#: editor/editor_export.cpp
+msgid "No export template found at the expected path:"
+msgstr ""
+
+#: editor/editor_export.cpp
+msgid "Packing"
+msgstr ""
+
+#: editor/editor_export.cpp
+msgid ""
+"Target platform requires 'ETC' texture compression for GLES2. Enable 'Import "
+"Etc' in Project Settings."
+msgstr ""
+
+#: editor/editor_export.cpp
+msgid ""
+"Target platform requires 'ETC2' texture compression for GLES3. Enable "
+"'Import Etc 2' in Project Settings."
+msgstr ""
+
+#: editor/editor_export.cpp
+msgid ""
+"Target platform requires 'ETC' texture compression for the driver fallback "
+"to GLES2.\n"
+"Enable 'Import Etc' in Project Settings, or disable 'Driver Fallback "
+"Enabled'."
+msgstr ""
+
+#: editor/editor_export.cpp platform/android/export/export.cpp
+#: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
+#: platform/osx/export/export.cpp platform/uwp/export/export.cpp
+msgid "Custom debug template not found."
+msgstr ""
+
+#: editor/editor_export.cpp platform/android/export/export.cpp
+#: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
+#: platform/osx/export/export.cpp platform/uwp/export/export.cpp
+msgid "Custom release template not found."
+msgstr ""
+
+#: editor/editor_export.cpp platform/javascript/export/export.cpp
+msgid "Template file not found:"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Select Current Folder"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "File Exists, Overwrite?"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Select This Folder"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
+msgid "Copy Path"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
+msgid "Open in File Manager"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
+#: editor/project_manager.cpp
+msgid "Show in File Manager"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
+msgid "New Folder..."
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Refresh"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "All Recognized"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "All Files (*)"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Open a File"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Open File(s)"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Open a Directory"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Open a File or Directory"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/editor_node.cpp
+#: editor/editor_properties.cpp editor/inspector_dock.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/script_editor_plugin.cpp scene/gui/file_dialog.cpp
+msgid "Save"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Save a File"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Go Back"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Go Forward"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Go Up"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Toggle Hidden Files"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Toggle Favorite"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Toggle Mode"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Focus Path"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Move Favorite Up"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Move Favorite Down"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Previous Folder"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Next Folder"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "Go to parent folder"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp
+msgid "(Un)favorite current folder."
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
+msgid "View items as a grid of thumbnails."
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
+msgid "View items as a list."
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Directories & Files:"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp editor/plugins/sprite_editor_plugin.cpp
+#: editor/plugins/style_box_editor_plugin.cpp
+msgid "Preview:"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "File:"
+msgstr ""
+
+#: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
+msgid "Must use a valid extension."
+msgstr ""
+
+#: editor/editor_file_system.cpp
+msgid "ScanSources"
+msgstr ""
+
+#: editor/editor_file_system.cpp
+msgid "(Re)Importing Assets"
+msgstr ""
+
+#: editor/editor_help.cpp editor/plugins/spatial_editor_plugin.cpp
+msgid "Top"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Class:"
+msgstr ""
+
+#: editor/editor_help.cpp editor/scene_tree_editor.cpp
+msgid "Inherits:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Inherited by:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Brief Description:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Properties"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Properties:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Methods"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Methods:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Theme Properties"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Theme Properties:"
+msgstr ""
+
+#: editor/editor_help.cpp modules/visual_script/visual_script_editor.cpp
+msgid "Signals:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Enumerations"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Enumerations:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "enum  "
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Constants"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Constants:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Class Description"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Class Description:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Online Tutorials:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid ""
+"There are currently no tutorials for this class, you can [color=$color][url="
+"$url]contribute one[/url][/color] or [color=$color][url=$url2]request one[/"
+"url][/color]."
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Property Descriptions"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Property Descriptions:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid ""
+"There is currently no description for this property. Please help us by "
+"[color=$color][url=$url]contributing one[/url][/color]!"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Method Descriptions"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid "Method Descriptions:"
+msgstr ""
+
+#: editor/editor_help.cpp
+msgid ""
+"There is currently no description for this method. Please help us by [color="
+"$color][url=$url]contributing one[/url][/color]!"
+msgstr ""
+
+#: editor/editor_help_search.cpp editor/editor_node.cpp
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Search Help"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Display All"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Classes Only"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Methods Only"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Signals Only"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Constants Only"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Properties Only"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Theme Properties Only"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Member Type"
+msgstr ""
+
+#: editor/editor_help_search.cpp
+msgid "Class"
+msgstr ""
+
+#: editor/editor_inspector.cpp editor/project_settings_editor.cpp
+msgid "Property:"
+msgstr ""
+
+#: editor/editor_inspector.cpp
+msgid "Set"
+msgstr ""
+
+#: editor/editor_inspector.cpp
+msgid "Set Multiple:"
+msgstr ""
+
+#: editor/editor_log.cpp
+msgid "Output:"
+msgstr ""
+
+#: editor/editor_log.cpp editor/editor_profiler.cpp
+#: editor/editor_properties.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+#: editor/property_editor.cpp editor/scene_tree_dock.cpp
+#: editor/script_editor_debugger.cpp
+#: modules/gdnative/gdnative_library_editor_plugin.cpp scene/gui/line_edit.cpp
+#: scene/gui/text_edit.cpp
+msgid "Clear"
+msgstr ""
+
+#: editor/editor_log.cpp
+msgid "Clear Output"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Project export failed with error code %d."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Imported resources can't be saved."
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
+#: scene/gui/dialogs.cpp
+msgid "OK"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/animation_player_editor_plugin.cpp
+msgid "Error saving resource!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This resource can't be saved because it does not belong to the edited scene. "
+"Make it unique first."
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/animation_player_editor_plugin.cpp
+msgid "Save Resource As..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Can't open file for writing:"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Requested file format unknown:"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Error while saving."
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
+msgid "Can't open '%s'. The file could have been moved or deleted."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Error while parsing '%s'."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Unexpected end of file '%s'."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Missing '%s' or its dependencies."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Error while loading '%s'."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Saving Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Analyzing"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Creating Thumbnail"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "This operation can't be done without a tree root."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This scene can't be saved because there is a cyclic instancing inclusion.\n"
+"Please resolve it and then attempt to save again."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Couldn't save scene. Likely dependencies (instances or inheritance) couldn't "
+"be satisfied."
+msgstr ""
+
+#: editor/editor_node.cpp editor/scene_tree_dock.cpp
+msgid "Can't overwrite scene that is still open!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Can't load MeshLibrary for merging!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Error saving MeshLibrary!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Can't load TileSet for merging!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Error saving TileSet!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Error trying to save layout!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Default editor layout overridden."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Layout name not found!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Restored default layout to base settings."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This resource belongs to a scene that was imported, so it's not editable.\n"
+"Please read the documentation relevant to importing scenes to better "
+"understand this workflow."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This resource belongs to a scene that was instanced or inherited.\n"
+"Changes to it will not be kept when saving the current scene."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This resource was imported, so it's not editable. Change its settings in the "
+"import panel and then re-import."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This scene was imported, so changes to it will not be kept.\n"
+"Instancing it or inheriting will allow making changes to it.\n"
+"Please read the documentation relevant to importing scenes to better "
+"understand this workflow."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This is a remote object so changes to it will not be kept.\n"
+"Please read the documentation relevant to debugging to better understand "
+"this workflow."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "There is no defined scene to run."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"No main scene has ever been defined, select one?\n"
+"You can change it later in \"Project Settings\" under the 'application' "
+"category."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Selected scene '%s' does not exist, select a valid one?\n"
+"You can change it later in \"Project Settings\" under the 'application' "
+"category."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Selected scene '%s' is not a scene file, select a valid one?\n"
+"You can change it later in \"Project Settings\" under the 'application' "
+"category."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Current scene was never saved, please save it prior to running."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Could not start subprocess!"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Base Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Quick Open Scene..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Quick Open Script..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save & Close"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save changes to '%s' before closing?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Saved %s modified resource(s)."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "A root node is required to save the scene."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save Scene As..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "No"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Yes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "This scene has never been saved. Save before running?"
+msgstr ""
+
+#: editor/editor_node.cpp editor/scene_tree_dock.cpp
+msgid "This operation can't be done without a scene."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Export Mesh Library"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "This operation can't be done without a root node."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Export Tile Set"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "This operation can't be done without a selected node."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Current scene not saved. Open anyway?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Can't reload a scene that was never saved."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Revert"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "This action cannot be undone. Revert anyway?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Quick Run Scene..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Quit"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Exit the editor?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Project Manager?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save & Quit"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save changes to the following scene(s) before quitting?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save changes the following scene(s) before opening Project Manager?"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"This option is deprecated. Situations where refresh must be forced are now "
+"considered a bug. Please report."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Pick a Main Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Unable to enable addon plugin at: '%s' parsing of config failed."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Unable to find script field for addon plugin at: 'res://addons/%s'."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Unable to load addon script from path: '%s'."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Unable to load addon script from path: '%s' There seems to be an error in "
+"the code, please check the syntax."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Unable to load addon script from path: '%s' Base type is not EditorPlugin."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Unable to load addon script from path: '%s' Script is not in tool mode."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Scene '%s' was automatically imported, so it can't be modified.\n"
+"To make changes to it, a new inherited scene can be created."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Error loading scene, it must be inside the project path. Use 'Import' to "
+"open the scene, then save it inside the project path."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Scene '%s' has broken dependencies:"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Clear Recent Scenes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save Layout"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Delete Layout"
+msgstr ""
+
+#: editor/editor_node.cpp editor/import_dock.cpp
+#: editor/script_create_dialog.cpp
+msgid "Default"
+msgstr ""
+
+#: editor/editor_node.cpp editor/editor_properties.cpp
+#: editor/plugins/script_editor_plugin.cpp editor/property_editor.cpp
+msgid "Show in FileSystem"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play This Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Close Tab"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Switch Scene Tab"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "%d more files or folders"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "%d more folders"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "%d more files"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Dock Position"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Distraction Free Mode"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Toggle distraction-free mode."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Add a new scene."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Go to previously opened scene."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Next tab"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Previous tab"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Filter Files..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Operations with scene files."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "New Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "New Inherited Scene..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Scene..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Save All Scenes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Close Scene"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
+msgid "Open Recent"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Convert To..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "MeshLibrary..."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "TileSet..."
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_text_editor.cpp
+#: scene/gui/line_edit.cpp scene/gui/text_edit.cpp
+msgid "Undo"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_text_editor.cpp
+#: scene/gui/line_edit.cpp scene/gui/text_edit.cpp
+msgid "Redo"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Revert Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Miscellaneous project or scene-wide tools."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Project"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Project Settings"
+msgstr ""
+
+#: editor/editor_node.cpp editor/project_export.cpp
+msgid "Export"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/tile_set_editor_plugin.cpp
+msgid "Tools"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Project Data Folder"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Quit to Project List"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
+#: editor/project_export.cpp
+msgid "Debug"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Deploy with Remote Debug"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"When exporting or deploying, the resulting executable will attempt to "
+"connect to the IP of this computer in order to be debugged."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Small Deploy with Network FS"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"When this option is enabled, export or deploy will produce a minimal "
+"executable.\n"
+"The filesystem will be provided from the project by the editor over the "
+"network.\n"
+"On Android, deploy will use the USB cable for faster performance. This "
+"option speeds up testing for games with a large footprint."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Visible Collision Shapes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Collision shapes and raycast nodes (for 2D and 3D) will be visible on the "
+"running game if this option is turned on."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Visible Navigation"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"Navigation meshes and polygons will be visible on the running game if this "
+"option is turned on."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Sync Scene Changes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"When this option is turned on, any changes made to the scene in the editor "
+"will be replicated in the running game.\n"
+"When used remotely on a device, this is more efficient with network "
+"filesystem."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Sync Script Changes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid ""
+"When this option is turned on, any script that is saved will be reloaded on "
+"the running game.\n"
+"When used remotely on a device, this is more efficient with network "
+"filesystem."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Editor"
+msgstr ""
+
+#: editor/editor_node.cpp editor/settings_config_dialog.cpp
+msgid "Editor Settings"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Editor Layout"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Toggle Fullscreen"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Editor Data/Settings Folder"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Editor Data Folder"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Editor Settings Folder"
+msgstr ""
+
+#: editor/editor_node.cpp editor/project_export.cpp
+msgid "Manage Export Templates"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Help"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/asset_library_editor_plugin.cpp
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp
+#: editor/plugins/shader_editor_plugin.cpp editor/plugins/text_editor.cpp
+#: editor/project_settings_editor.cpp editor/rename_dialog.cpp
+msgid "Search"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
+msgid "Online Docs"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Q&A"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Issue Tracker"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/asset_library_editor_plugin.cpp
+msgid "Community"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "About"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play the project."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Pause the scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Pause Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Stop the scene."
+msgstr ""
+
+#: editor/editor_node.cpp editor/editor_profiler.cpp
+msgid "Stop"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play the edited scene."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play custom scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Play Custom Scene"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Changing the video driver requires restarting the editor."
+msgstr ""
+
+#: editor/editor_node.cpp editor/project_settings_editor.cpp
+#: editor/settings_config_dialog.cpp
+msgid "Save & Restart"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Spins when the editor window redraws."
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Update Always"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Update Changes"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Disable Update Spinner"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/asset_library_editor_plugin.cpp
+#: editor/project_manager.cpp
+msgid "Import"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "FileSystem"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Inspector"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Node"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Expand Bottom Panel"
+msgstr ""
+
+#: editor/editor_node.cpp scene/resources/visual_shader.cpp
+msgid "Output"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Don't Save"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Import Templates From ZIP File"
+msgstr ""
+
+#: editor/editor_node.cpp editor/project_export.cpp
+msgid "Export Project"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Export Library"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Merge With Existing"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Password:"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open & Run a Script"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "New Inherited"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Load Errors"
+msgstr ""
+
+#: editor/editor_node.cpp editor/plugins/tile_map_editor_plugin.cpp
+msgid "Select"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open 2D Editor"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open 3D Editor"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open Script Editor"
+msgstr ""
+
+#: editor/editor_node.cpp editor/project_manager.cpp
+msgid "Open Asset Library"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open the next Editor"
+msgstr ""
+
+#: editor/editor_node.cpp
+msgid "Open the previous Editor"
+msgstr ""
+
+#: editor/editor_plugin.cpp
+msgid "Creating Mesh Previews"
+msgstr ""
+
+#: editor/editor_plugin.cpp
+msgid "Thumbnail..."
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp
+msgid "Edit Plugin"
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp
+msgid "Installed Plugins:"
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp editor/plugin_config_dialog.cpp
+msgid "Update"
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp editor/plugin_config_dialog.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Version:"
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp editor/plugin_config_dialog.cpp
+msgid "Author:"
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp
+msgid "Status:"
+msgstr ""
+
+#: editor/editor_plugin_settings.cpp
+msgid "Edit:"
+msgstr ""
+
+#: editor/editor_profiler.cpp editor/plugins/animation_state_machine_editor.cpp
+#: editor/rename_dialog.cpp
+msgid "Start"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Measure:"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Frame Time (sec)"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Average Time (sec)"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Frame %"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Physics Frame %"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Time:"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Inclusive"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Self"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Frame #:"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Time"
+msgstr ""
+
+#: editor/editor_profiler.cpp
+msgid "Calls"
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid "On"
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid "Layer"
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid "Bit %d, value %d"
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid "[Empty]"
+msgstr ""
+
+#: editor/editor_properties.cpp editor/plugins/root_motion_editor_plugin.cpp
+msgid "Assign..."
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid "Invalid RID"
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid ""
+"The selected resource (%s) does not match any type expected for this "
+"property (%s)."
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid ""
+"Can't create a ViewportTexture on resources saved as a file.\n"
+"Resource needs to belong to a scene."
+msgstr ""
+
+#: editor/editor_properties.cpp
+msgid ""
+"Can't create a ViewportTexture on this resource because it's not set as "
+"local to scene.\n"
+"Please switch on the 'local to scene' property on it (and all resources "
+"containing it up to a node)."
+msgstr ""
+
+#: editor/editor_properties.cpp editor/property_editor.cpp
+msgid "Pick a Viewport"
+msgstr ""
+
+#: editor/editor_properties.cpp editor/property_editor.cpp
+msgid "New Script"
+msgstr ""
+
+#: editor/editor_properties.cpp editor/property_editor.cpp
+msgid "New %s"
+msgstr ""
+
+#: editor/editor_properties.cpp editor/property_editor.cpp
+msgid "Make Unique"
+msgstr ""
+
+#: editor/editor_properties.cpp
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+#: editor/plugins/tile_map_editor_plugin.cpp editor/property_editor.cpp
+#: scene/gui/line_edit.cpp scene/gui/text_edit.cpp
+msgid "Paste"
+msgstr ""
+
+#: editor/editor_properties.cpp editor/property_editor.cpp
+msgid "Convert To %s"
+msgstr ""
+
+#: editor/editor_properties.cpp
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Open Editor"
+msgstr ""
+
+#: editor/editor_properties.cpp editor/property_editor.cpp
+msgid "Selected node is not a Viewport!"
+msgstr ""
+
+#: editor/editor_properties_array_dict.cpp
+msgid "Size: "
+msgstr ""
+
+#: editor/editor_properties_array_dict.cpp
+msgid "Page: "
+msgstr ""
+
+#: editor/editor_properties_array_dict.cpp
+msgid "New Key:"
+msgstr ""
+
+#: editor/editor_properties_array_dict.cpp
+msgid "New Value:"
+msgstr ""
+
+#: editor/editor_properties_array_dict.cpp
+msgid "Add Key/Value Pair"
+msgstr ""
+
+#: editor/editor_properties_array_dict.cpp
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Remove Item"
+msgstr ""
+
+#: editor/editor_run_native.cpp
+msgid "Select device from the list"
+msgstr ""
+
+#: editor/editor_run_native.cpp
+msgid ""
+"No runnable export preset found for this platform.\n"
+"Please add a runnable preset in the export menu."
+msgstr ""
+
+#: editor/editor_run_script.cpp
+msgid "Write your logic in the _run() method."
+msgstr ""
+
+#: editor/editor_run_script.cpp
+msgid "There is an edited scene already."
+msgstr ""
+
+#: editor/editor_run_script.cpp
+msgid "Couldn't instance script:"
+msgstr ""
+
+#: editor/editor_run_script.cpp
+msgid "Did you forget the 'tool' keyword?"
+msgstr ""
+
+#: editor/editor_run_script.cpp
+msgid "Couldn't run script:"
+msgstr ""
+
+#: editor/editor_run_script.cpp
+msgid "Did you forget the '_run' method?"
+msgstr ""
+
+#: editor/editor_sub_scene.cpp
+msgid "Select Node(s) to Import"
+msgstr ""
+
+#: editor/editor_sub_scene.cpp
+msgid "Scene Path:"
+msgstr ""
+
+#: editor/editor_sub_scene.cpp
+msgid "Import From Node:"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Re-Download"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Uninstall"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "(Installed)"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Download"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "(Missing)"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "(Current)"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Retrieving mirrors, please wait..."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Remove template version '%s'?"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Can't open export templates zip."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Invalid version.txt format inside templates: %s."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "No version.txt found inside templates."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Error creating path for templates:"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Extracting Export Templates"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Importing:"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid ""
+"No download links found for this version. Direct download is only available "
+"for official releases."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Can't resolve."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Can't connect."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "No response."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Request Failed."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Redirect Loop."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Failed:"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Download Complete."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid ""
+"Templates installation failed. The problematic templates archives can be "
+"found at '%s'."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Error requesting url: "
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Connecting to Mirror..."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Disconnected"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Resolving"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Can't Resolve"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Connecting..."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Can't Connect"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Connected"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Requesting..."
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Downloading"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Connection Error"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "SSL Handshake Error"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Current Version:"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Installed Versions:"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Install From File"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Remove Template"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Select template file"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Export Template Manager"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Download Templates"
+msgstr ""
+
+#: editor/export_template_manager.cpp
+msgid "Select mirror from list: (Shift+Click: Open in Browser)"
+msgstr ""
+
+#: editor/file_type_cache.cpp
+msgid "Can't open file_type_cache.cch for writing, not saving file type cache!"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Favorites"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Cannot navigate to '%s' as it has not been found in the file system!"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Status: Import of file failed. Please fix file and reimport manually."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Cannot move/rename resources root."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Cannot move a folder into itself."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Error moving:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Error duplicating:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Unable to update dependencies:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp editor/scene_tree_editor.cpp
+msgid "No name provided."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Provided name contains invalid characters"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Name contains invalid characters."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "A file or folder with this name already exists."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Renaming file:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Renaming folder:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Duplicating file:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Duplicating folder:"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Open Scene(s)"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Instance"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Add to favorites"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Remove from favorites"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Edit Dependencies..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "View Owners..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp editor/plugins/animation_player_editor_plugin.cpp
+msgid "Rename..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Duplicate..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Move To..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp editor/plugins/script_editor_plugin.cpp
+msgid "New Script..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "New Resource..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp editor/script_editor_debugger.cpp
+msgid "Expand All"
+msgstr ""
+
+#: editor/filesystem_dock.cpp editor/script_editor_debugger.cpp
+msgid "Collapse All"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+#: editor/project_manager.cpp editor/rename_dialog.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Rename"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Previous Directory"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Next Directory"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Re-Scan Filesystem"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Toggle split mode"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Search files"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid ""
+"Scanning Files,\n"
+"Please Wait..."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Move"
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "There is already file or folder with the same name in this location."
+msgstr ""
+
+#: editor/filesystem_dock.cpp
+msgid "Overwrite"
+msgstr ""
+
+#: editor/filesystem_dock.cpp editor/plugins/script_editor_plugin.cpp
+msgid "Create Script"
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Find in Files"
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Find:"
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Folder:"
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Filters:"
+msgstr ""
+
+#: editor/find_in_files.cpp editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp
+msgid "Find..."
+msgstr ""
+
+#: editor/find_in_files.cpp editor/plugins/script_text_editor.cpp
+msgid "Replace..."
+msgstr ""
+
+#: editor/find_in_files.cpp editor/progress_dialog.cpp scene/gui/dialogs.cpp
+msgid "Cancel"
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Find: "
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Replace: "
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Replace all (no undo)"
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Searching..."
+msgstr ""
+
+#: editor/find_in_files.cpp
+msgid "Search complete"
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Group name already exists."
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Invalid group name."
+msgstr ""
+
+#: editor/groups_editor.cpp editor/node_dock.cpp
+msgid "Groups"
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Nodes not in Group"
+msgstr ""
+
+#: editor/groups_editor.cpp editor/scene_tree_dock.cpp
+msgid "Filter nodes"
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Nodes in Group"
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Add to Group"
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Remove from Group"
+msgstr ""
+
+#: editor/groups_editor.cpp
+msgid "Manage Groups"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import as Single Scene"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Animations"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Materials"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Objects"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Objects+Materials"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Objects+Animations"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Materials+Animations"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import with Separate Objects+Materials+Animations"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import as Multiple Scenes"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Import as Multiple Scenes+Materials"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+#: editor/plugins/mesh_library_editor_plugin.cpp
+msgid "Import Scene"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Importing Scene..."
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Generating Lightmaps"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Generating for Mesh: "
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Running Custom Script..."
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Couldn't load post-import script:"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Invalid/broken script for post-import (check console):"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Error running post-import script:"
+msgstr ""
+
+#: editor/import/resource_importer_scene.cpp
+msgid "Saving..."
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid "Set as Default for '%s'"
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid "Clear Default for '%s'"
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid " Files"
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid "Import As:"
+msgstr ""
+
+#: editor/import_dock.cpp editor/property_editor.cpp
+msgid "Preset..."
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid "Reimport"
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid "Save scenes, re-import and restart"
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid "Changing the type of an imported file requires editor restart."
+msgstr ""
+
+#: editor/import_dock.cpp
+msgid ""
+"WARNING: Assets exist that use this resource, they may stop loading properly."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Failed to load resource."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Expand All Properties"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Collapse All Properties"
+msgstr ""
+
+#: editor/inspector_dock.cpp editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Save As..."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Copy Params"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Paste Params"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Edit Resource Clipboard"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Copy Resource"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Make Built-In"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Make Sub-Resources Unique"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Open in Help"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Create a new resource in memory and edit it."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Load an existing resource from disk and edit it."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Save the currently edited resource."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Go to the previous edited object in history."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Go to the next edited object in history."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "History of recently edited objects."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Object properties."
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Filter properties"
+msgstr ""
+
+#: editor/inspector_dock.cpp
+msgid "Changes may be lost!"
+msgstr ""
+
+#: editor/multi_node_edit.cpp
+msgid "MultiNode Set"
+msgstr ""
+
+#: editor/node_dock.cpp
+msgid "Select a Node to edit Signals and Groups."
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Edit a Plugin"
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Create a Plugin"
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Plugin Name:"
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Subfolder:"
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Language:"
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Script Name:"
+msgstr ""
+
+#: editor/plugin_config_dialog.cpp
+msgid "Activate now?"
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Create Polygon"
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Create points."
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+msgid ""
+"Edit points.\n"
+"LMB: Move Point\n"
+"RMB: Erase Point"
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+msgid "Erase points."
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+msgid "Edit Polygon"
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+msgid "Insert Point"
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+msgid "Edit Polygon (Remove Point)"
+msgstr ""
+
+#: editor/plugins/abstract_polygon_2d_editor.cpp
+msgid "Remove Polygon And Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Add Animation"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Load..."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Move Node Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+msgid "Change BlendSpace1D Limits"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+msgid "Change BlendSpace1D Labels"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "This type of node can't be used. Only root nodes are allowed."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Add Node Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Add Animation Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+msgid "Remove BlendSpace1D Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+msgid "Move BlendSpace1D Node Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid ""
+"AnimationTree is inactive.\n"
+"Activate to enable playback, check node warnings if activation fails."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Set the blending position within the space"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Select and move points, create points with RMB."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp scene/gui/graph_edit.cpp
+msgid "Enable snap and show grid."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_1d_editor.cpp
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Open Animation Node"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Triangle already exists"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Add Triangle"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Change BlendSpace2D Limits"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Change BlendSpace2D Labels"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Remove BlendSpace2D Point"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Remove BlendSpace2D Triangle"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "BlendSpace2D does not belong to an AnimationTree node."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "No triangles exist, so no blending can take place."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Toggle Auto Triangles"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Create triangles by connecting points."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Erase points and triangles."
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+msgid "Generate blend triangles automatically (instead of manually)"
+msgstr ""
+
+#: editor/plugins/animation_blend_space_2d_editor.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend:"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Parameter Changed"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Edit Filters"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Output node can't be added to the blend tree."
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Add Node to BlendTree"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Node Moved"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Unable to connect, port may be in use or connection may be invalid."
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Nodes Connected"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Nodes Disconnected"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Set Animation"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Node"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Toggle Filter On/Off"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Change Filter"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "No animation player set, so unable to retrieve track names."
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Player path set is invalid, so unable to retrieve track names."
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/root_motion_editor_plugin.cpp
+msgid ""
+"Animation player has no valid root node path, so unable to retrieve track "
+"names."
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Node Renamed"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Add Node..."
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/plugins/root_motion_editor_plugin.cpp
+msgid "Edit Filtered Tracks:"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+msgid "Enable filtering"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Toggle Autoplay"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "New Animation Name:"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "New Anim"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Change Animation Name:"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Delete Animation?"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Remove Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Invalid animation name!"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Animation name already exists!"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Rename Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Blend Next Changed"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Change Blend Time"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Load Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Duplicate Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "No animation to copy!"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "No animation resource on clipboard!"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Pasted Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Paste Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "No animation to edit!"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Play selected animation backwards from current pos. (A)"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Play selected animation backwards from end. (Shift+A)"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Stop animation playback. (S)"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Play selected animation from start. (Shift+D)"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Play selected animation from current pos. (D)"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Animation position (in seconds)."
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Scale animation playback globally for the node."
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Animation Tools"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "New"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Edit Transitions..."
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Open in Inspector"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Display list of animations in player."
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Autoplay on Load"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Onion Skinning"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Enable Onion Skinning"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Directions"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Past"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Future"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Depth"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "1 step"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "2 steps"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "3 steps"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Differences Only"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Force White Modulate"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Include Gizmos (3D)"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Pin AnimationPlayer"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Create New Animation"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Animation Name:"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp editor/property_editor.cpp
+#: editor/script_create_dialog.cpp
+msgid "Error!"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Blend Times:"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Next (Auto Queue):"
+msgstr ""
+
+#: editor/plugins/animation_player_editor_plugin.cpp
+msgid "Cross-Animation Blend Times"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Move Node"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Add Transition"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Node"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "End"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Immediate"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Sync"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "At End"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Travel"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Start and end nodes are needed for a sub-transition."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "No playback resource set at path: %s."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Node Removed"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Transition Removed"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Set Start Node (Autoplay)"
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid ""
+"Select and move nodes.\n"
+"RMB to add new nodes.\n"
+"Shift+LMB to create connections."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Create new nodes."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Connect nodes."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Remove selected node or transition."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Toggle autoplay this animation on start, restart or seek to zero."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Set the end animation. This is useful for sub-transitions."
+msgstr ""
+
+#: editor/plugins/animation_state_machine_editor.cpp
+msgid "Transition: "
+msgstr ""
+
+#: editor/plugins/animation_tree_editor_plugin.cpp
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "AnimationTree"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "New name:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Scale:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Fade In (s):"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Fade Out (s):"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Mix"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Auto Restart:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Restart (s):"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Random Restart (s):"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Start!"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Amount:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend 0:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend 1:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "X-Fade Time (s):"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Current:"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Add Input"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Clear Auto-Advance"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Set Auto-Advance"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Delete Input"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Animation tree is valid."
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Animation tree is invalid."
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Animation Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "OneShot Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Mix Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend2 Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend3 Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Blend4 Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "TimeScale Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "TimeSeek Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Transition Node"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Import Animations..."
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Edit Node Filters"
+msgstr ""
+
+#: editor/plugins/animation_tree_player_editor_plugin.cpp
+msgid "Filters..."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Contents:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "View Files"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Can't resolve hostname:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Connection error, please try again."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Can't connect to host:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "No response from host:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Request failed, return code:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Request failed, too many redirects"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Bad download hash, assuming file has been tampered with."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Expected:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Got:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Failed sha256 hash check"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Asset Download Error:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Downloading (%s / %s)..."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Downloading..."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Resolving..."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Error making request"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Idle"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Retry"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Download Error"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Download for this asset is already in progress!"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "First"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Previous"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Next"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Last"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "All"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+#: editor/project_settings_editor.cpp
+msgid "Plugins"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp editor/project_manager.cpp
+msgid "Sort:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Reverse"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+#: editor/project_settings_editor.cpp
+msgid "Category:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Site:"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Support..."
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Official"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Testing"
+msgstr ""
+
+#: editor/plugins/asset_library_editor_plugin.cpp
+msgid "Assets ZIP File"
+msgstr ""
+
+#: editor/plugins/baked_lightmap_editor_plugin.cpp
+msgid ""
+"Can't determine a save path for lightmap images.\n"
+"Save your scene (for images to be saved in the same dir), or pick a save "
+"path from the BakedLightmap properties."
+msgstr ""
+
+#: editor/plugins/baked_lightmap_editor_plugin.cpp
+msgid ""
+"No meshes to bake. Make sure they contain an UV2 channel and that the 'Bake "
+"Light' flag is on."
+msgstr ""
+
+#: editor/plugins/baked_lightmap_editor_plugin.cpp
+msgid "Failed creating lightmap images, make sure path is writable."
+msgstr ""
+
+#: editor/plugins/baked_lightmap_editor_plugin.cpp
+msgid "Bake Lightmaps"
+msgstr ""
+
+#: editor/plugins/camera_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp editor/rename_dialog.cpp
+msgid "Preview"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Configure Snap"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Grid Offset:"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Grid Step:"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation Offset:"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation Step:"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Move vertical guide"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Create new vertical guide"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Remove vertical guide"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Move horizontal guide"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Create new horizontal guide"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Remove horizontal guide"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Create new horizontal and vertical guides"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Move pivot"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotate CanvasItem"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Move anchor"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Resize CanvasItem"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale CanvasItem"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Move CanvasItem"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Presets for the anchors and margins values of a Control node."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Children of containers have their anchors and margins values overridden by "
+"their parent."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Anchors only"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Change Anchors and Margins"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Change Anchors"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Paste Pose"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Warning: Children of a container get their position and size determined only "
+"by their parent."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/texture_region_editor_plugin.cpp
+#: editor/plugins/tile_set_editor_plugin.cpp scene/gui/graph_edit.cpp
+msgid "Zoom Reset"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Select Mode"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Drag: Rotate"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Alt+Drag: Move"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Press 'v' to Change Pivot, 'Shift+v' to Drag Pivot (while moving)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Alt+RMB: Depth list selection"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Move Mode"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotate Mode"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale Mode"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid ""
+"Show a list of all objects at the position clicked\n"
+"(same as Alt+RMB in select mode)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Click to change object's rotation pivot."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Pan Mode"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Toggle snapping."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Use Snap"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snapping Options"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to grid"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Use Rotation Snap"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Configure Snap..."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap Relative"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Use Pixel Snap"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Smart snapping"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to parent"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to node anchor"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to node sides"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to node center"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to other nodes"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Snap to guides"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Lock the selected object in place (can't be moved)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Unlock the selected object (can be moved)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Makes sure the object's children are not selectable."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Restores the object's children's ability to be selected."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Skeleton Options"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Bones"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Make IK Chain"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Clear IK Chain"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Make Custom Bone(s) from Node(s)"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Clear Custom Bones"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Show Grid"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Helpers"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Rulers"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Guides"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Origin"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Viewport"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Show Group And Lock Icons"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Center Selection"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Frame Selection"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Layout"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert Key (Existing Tracks)"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Copy Pose"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Clear Pose"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Multiply grid step by 2"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Divide grid step by 2"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Add %s"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Adding %s..."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Cannot instantiate multiple nodes without root."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
+msgid "Create Node"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
+msgid "Error instancing scene from %s"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Change default type"
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Drag & drop + Shift : Add node as sibling\n"
+"Drag & drop + Alt : Change node type"
+msgstr ""
+
+#: editor/plugins/collision_polygon_editor_plugin.cpp
+msgid "Create Polygon3D"
+msgstr ""
+
+#: editor/plugins/collision_polygon_editor_plugin.cpp
+msgid "Edit Poly"
+msgstr ""
+
+#: editor/plugins/collision_polygon_editor_plugin.cpp
+msgid "Edit Poly (Remove Point)"
+msgstr ""
+
+#: editor/plugins/collision_shape_2d_editor_plugin.cpp
+msgid "Set Handle"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
+#: editor/plugins/cpu_particles_editor_plugin.cpp
+msgid "CPUParticles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Create Emission Points From Mesh"
+msgstr ""
+
+#: editor/plugins/cpu_particles_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Create Emission Points From Node"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Flat0"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Flat1"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Ease in"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Ease out"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Smoothstep"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Modify Curve Point"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Modify Curve Tangent"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Load Curve Preset"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Add point"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Remove point"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Left linear"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Right linear"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Load preset"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Remove Curve Point"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Toggle Curve Linear Tangent"
+msgstr ""
+
+#: editor/plugins/curve_editor_plugin.cpp
+msgid "Hold Shift to edit tangents individually"
+msgstr ""
+
+#: editor/plugins/gi_probe_editor_plugin.cpp
+msgid "Bake GI Probe"
+msgstr ""
+
+#: editor/plugins/gradient_editor_plugin.cpp
+msgid "Gradient Edited"
+msgstr ""
+
+#: editor/plugins/item_list_editor_plugin.cpp
+msgid "Item %d"
+msgstr ""
+
+#: editor/plugins/item_list_editor_plugin.cpp
+msgid "Items"
+msgstr ""
+
+#: editor/plugins/item_list_editor_plugin.cpp
+msgid "Item List Editor"
+msgstr ""
+
+#: editor/plugins/light_occluder_2d_editor_plugin.cpp
+msgid "Create Occluder Polygon"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Mesh is empty!"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Static Trimesh Body"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Static Convex Body"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "This doesn't work on scene root!"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Trimesh Shape"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Convex Shape"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Navigation Mesh"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Contained Mesh is not of type ArrayMesh."
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "UV Unwrap failed, mesh may not be manifold?"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "No mesh to debug."
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Model has no UV in this layer"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "MeshInstance lacks a Mesh!"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Mesh has not surface to create outlines from!"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Mesh primitive type is not PRIMITIVE_TRIANGLES!"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Could not create outline!"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Outline"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Mesh"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Trimesh Static Body"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Convex Static Body"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Trimesh Collision Sibling"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Convex Collision Sibling"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Outline Mesh..."
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "View UV1"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "View UV2"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Unwrap UV2 for Lightmap/AO"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Create Outline Mesh"
+msgstr ""
+
+#: editor/plugins/mesh_instance_editor_plugin.cpp
+msgid "Outline Size:"
+msgstr ""
+
+#: editor/plugins/mesh_library_editor_plugin.cpp
+msgid "Remove item %d?"
+msgstr ""
+
+#: editor/plugins/mesh_library_editor_plugin.cpp
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Add Item"
+msgstr ""
+
+#: editor/plugins/mesh_library_editor_plugin.cpp
+msgid "Remove Selected Item"
+msgstr ""
+
+#: editor/plugins/mesh_library_editor_plugin.cpp
+msgid "Import from Scene"
+msgstr ""
+
+#: editor/plugins/mesh_library_editor_plugin.cpp
+msgid "Update from Scene"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "No mesh source specified (and no MultiMesh set in node)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "No mesh source specified (and MultiMesh contains no Mesh)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Mesh source is invalid (invalid path)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Mesh source is invalid (not a MeshInstance)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Mesh source is invalid (contains no Mesh resource)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "No surface source specified."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Surface source is invalid (invalid path)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Surface source is invalid (no geometry)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Surface source is invalid (no faces)."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Parent has no solid faces to populate."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Couldn't map area."
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Select a Source Mesh:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Select a Target Surface:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Populate Surface"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Populate MultiMesh"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Target Surface:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Source Mesh:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "X-Axis"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Y-Axis"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Z-Axis"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Mesh Up Axis:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Random Rotation:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Random Tilt:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Random Scale:"
+msgstr ""
+
+#: editor/plugins/multimesh_editor_plugin.cpp
+msgid "Populate"
+msgstr ""
+
+#: editor/plugins/navigation_polygon_editor_plugin.cpp
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create Navigation Polygon"
+msgstr ""
+
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generating Visibility Rect"
+msgstr ""
+
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generate Visibility Rect"
+msgstr ""
+
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Can only set point into a ParticlesMaterial process material"
+msgstr ""
+
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Convert to CPUParticles"
+msgstr ""
+
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Generation Time (sec):"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Faces contain no area!"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "No faces!"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Node does not contain geometry."
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Node does not contain geometry (faces)."
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Create Emitter"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Emission Points:"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Surface Points"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Surface Points+Normal (Directed)"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Volume"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Emission Source: "
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "A processor material of type 'ParticlesMaterial' is required."
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Generating AABB"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Generate Visibility AABB"
+msgstr ""
+
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Generate AABB"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Remove Point from Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Remove Out-Control from Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Remove In-Control from Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Add Point to Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Split Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Move Point in Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Move In-Control in Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Move Out-Control in Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Select Points"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Shift+Drag: Select Control Points"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Click: Add Point"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Left Click: Split Segment (in curve)"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Right Click: Delete Point"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+msgid "Select Control Points (Shift+Drag)"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Add Point (in empty space)"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Delete Point"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Close Curve"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp editor/plugins/theme_editor_plugin.cpp
+#: editor/project_export.cpp
+msgid "Options"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Mirror Handle Angles"
+msgstr ""
+
+#: editor/plugins/path_2d_editor_plugin.cpp
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Mirror Handle Lengths"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Curve Point #"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Set Curve Point Position"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Set Curve In Position"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Set Curve Out Position"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Split Path"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Remove Path Point"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Remove Out-Control Point"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Remove In-Control Point"
+msgstr ""
+
+#: editor/plugins/path_editor_plugin.cpp
+msgid "Split Segment (in curve)"
+msgstr ""
+
+#: editor/plugins/physical_bone_plugin.cpp
+msgid "Move joint"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid ""
+"The skeleton property of the Polygon2D does not point to a Skeleton2D node"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Sync Bones"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid ""
+"No texture in this polygon.\n"
+"Set a texture to be able to edit UV."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Create UV Map"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid ""
+"Polygon 2D has internal vertices, so it can no longer be edited in the "
+"viewport."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Create Polygon & UV"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Create Internal Vertex"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Remove Internal Vertex"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Invalid Polygon (need 3 different vertices)"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Add Custom Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Remove Custom Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Transform UV Map"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Transform Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Paint Bone Weights"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Open Polygon 2D UV editor."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Polygon 2D UV Editor"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "UV"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Points"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Polygons"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Bones"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Move Points"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Ctrl: Rotate"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Shift: Move All"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Shift+Ctrl: Scale"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Move Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Rotate Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Scale Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Create a custom polygon. Enables custom polygon rendering."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid ""
+"Remove a custom polygon. If none remain, custom polygon rendering is "
+"disabled."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Paint weights with specified intensity."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Unpaint weights with specified intensity."
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Radius:"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Polygon->UV"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "UV->Polygon"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Clear UV"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Grid Settings"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Snap"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Enable Snap"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Grid"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Configure Grid:"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Grid Offset X:"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Grid Offset Y:"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Grid Step X:"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Grid Step Y:"
+msgstr ""
+
+#: editor/plugins/polygon_2d_editor_plugin.cpp
+msgid "Sync Bones to Polygon"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+msgid "ERROR: Couldn't load resource!"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+msgid "Add Resource"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+msgid "Rename Resource"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Delete Resource"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+msgid "Resource clipboard is empty!"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+msgid "Paste Resource"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/scene_tree_editor.cpp
+msgid "Instance:"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/theme_editor_plugin.cpp editor/project_settings_editor.cpp
+#: editor/scene_tree_editor.cpp
+msgid "Type:"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp editor/scene_tree_editor.cpp
+msgid "Open in Editor"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Load Resource"
+msgstr ""
+
+#: editor/plugins/resource_preloader_editor_plugin.cpp
+msgid "ResourcePreloader"
+msgstr ""
+
+#: editor/plugins/root_motion_editor_plugin.cpp
+msgid "AnimationTree has no path set to an AnimationPlayer"
+msgstr ""
+
+#: editor/plugins/root_motion_editor_plugin.cpp
+msgid "Path to AnimationPlayer is invalid"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Clear Recent Files"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Close and save changes?"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error writing TextFile:"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error: could not load file."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error could not load file."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error saving file!"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error while saving theme."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error Saving"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error importing theme."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error Importing"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "New TextFile..."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Open File"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Save File As..."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Import Theme"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error while saving theme"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Error saving"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Save Theme As..."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "%s Class Reference"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Toggle alphabetical sorting of the method list."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Sort"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp editor/scene_tree_dock.cpp
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Move Up"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp editor/scene_tree_dock.cpp
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Move Down"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Next script"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Previous script"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "File"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Open..."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Save All"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Soft Reload Script"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Copy Script Path"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "History Previous"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "History Next"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Theme"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Import Theme..."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Reload Theme"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Save Theme"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Close Docs"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Close All"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Close Other Tabs"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp editor/project_manager.cpp
+msgid "Run"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Toggle Scripts Panel"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+#: editor/plugins/script_text_editor.cpp
+msgid "Find Next"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
+msgid "Step Over"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
+msgid "Step Into"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
+msgid "Break"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp editor/project_manager.cpp
+#: editor/script_editor_debugger.cpp
+msgid "Continue"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Keep Debugger Open"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Debug with External Editor"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Open Godot online documentation"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Request Docs"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Help improve the Godot documentation by giving feedback"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Search the reference documentation."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Go to previous edited document."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Go to next edited document."
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Discard"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid ""
+"The following files are newer on disk.\n"
+"What action should be taken?:"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Reload"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Resave"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
+msgid "Debugger"
+msgstr ""
+
+#: editor/plugins/script_editor_plugin.cpp
+msgid "Search Results"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Line"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "(ignore)"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Go to Function"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
+msgid "Standard"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Only resources from filesystem can be dropped."
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Lookup Symbol"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Pick Color"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
+msgid "Convert Case"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
+msgid "Uppercase"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
+msgid "Lowercase"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
+msgid "Capitalize"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
+msgid "Syntax Highlighter"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp scene/gui/line_edit.cpp
+#: scene/gui/text_edit.cpp
+msgid "Cut"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp scene/gui/line_edit.cpp
+#: scene/gui/text_edit.cpp
+msgid "Select All"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Delete Line"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Indent Left"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Indent Right"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Toggle Comment"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Fold/Unfold Line"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Fold All Lines"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Unfold All Lines"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Clone Down"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Complete Symbol"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Trim Trailing Whitespace"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Convert Indent to Spaces"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Convert Indent to Tabs"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Auto Indent"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Toggle Breakpoint"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Remove All Breakpoints"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Go to Next Breakpoint"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Go to Previous Breakpoint"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Find Previous"
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Find in Files..."
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Go to Function..."
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Go to Line..."
+msgstr ""
+
+#: editor/plugins/script_text_editor.cpp
+msgid "Contextual Help"
+msgstr ""
+
+#: editor/plugins/shader_editor_plugin.cpp
+msgid "Shader"
+msgstr ""
+
+#: editor/plugins/skeleton_2d_editor_plugin.cpp
+msgid "This skeleton has no bones, create some children Bone2D nodes."
+msgstr ""
+
+#: editor/plugins/skeleton_2d_editor_plugin.cpp
+msgid "Create Rest Pose from Bones"
+msgstr ""
+
+#: editor/plugins/skeleton_2d_editor_plugin.cpp
+msgid "Set Rest Pose to Bones"
+msgstr ""
+
+#: editor/plugins/skeleton_2d_editor_plugin.cpp
+msgid "Skeleton2D"
+msgstr ""
+
+#: editor/plugins/skeleton_2d_editor_plugin.cpp
+msgid "Make Rest Pose (From Bones)"
+msgstr ""
+
+#: editor/plugins/skeleton_2d_editor_plugin.cpp
+msgid "Set Bones to Rest Pose"
+msgstr ""
+
+#: editor/plugins/skeleton_editor_plugin.cpp
+msgid "Create physical bones"
+msgstr ""
+
+#: editor/plugins/skeleton_editor_plugin.cpp
+msgid "Skeleton"
+msgstr ""
+
+#: editor/plugins/skeleton_editor_plugin.cpp
+msgid "Create physical skeleton"
+msgstr ""
+
+#: editor/plugins/skeleton_ik_editor_plugin.cpp
+msgid "Play IK"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Orthogonal"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Perspective"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Transform Aborted."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "X-Axis Transform."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Y-Axis Transform."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Z-Axis Transform."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Plane Transform."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Scaling: "
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Translating: "
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rotating %s degrees."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Keying is disabled (no key inserted)."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Animation Key Inserted."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Pitch"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Yaw"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Objects Drawn"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Material Changes"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Shader Changes"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Surface Changes"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Draw Calls"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Vertices"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Top View."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Bottom View."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Bottom"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Left View."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Left"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Right View."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Right"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Front View."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Front"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rear View."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rear"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Align with View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
+msgid "No parent to instance a child at."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
+msgid "This operation requires a single selected node."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Lock View Rotation"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Display Normal"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Display Wireframe"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Display Overdraw"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Display Unshaded"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Environment"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Gizmos"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Information"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View FPS"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Half Resolution"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Audio Listener"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Doppler Enable"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Cinematic Preview"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Left"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Right"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Forward"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Backwards"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Up"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Down"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Freelook Speed Modifier"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid ""
+"Note: The FPS value displayed is the editor's framerate.\n"
+"It cannot be used as a reliable indication of in-game performance."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Rotation Locked"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "XForm Dialog"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Snap Nodes To Floor"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Select Mode (Q)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid ""
+"Drag: Rotate\n"
+"Alt+Drag: Move\n"
+"Alt+RMB: Depth list selection"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Move Mode (W)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rotate Mode (E)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Scale Mode (R)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Local Coords"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Local Space Mode (%s)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Snap Mode (%s)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Bottom View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Top View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rear View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Front View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Left View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Right View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Switch Perspective/Orthogonal view"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Insert Animation Key"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Focus Origin"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Focus Selection"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Align Selection With View"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Tool Select"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Tool Move"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Tool Rotate"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Tool Scale"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Toggle Freelook"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Transform"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Snap object to floor"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Transform Dialog..."
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "1 Viewport"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "2 Viewports"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "2 Viewports (Alt)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "3 Viewports"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "3 Viewports (Alt)"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "4 Viewports"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Gizmos"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Origin"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Grid"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Settings"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Snap Settings"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Translate Snap:"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rotate Snap (deg.):"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Scale Snap (%):"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Viewport Settings"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Perspective FOV (deg.):"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Z-Near:"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "View Z-Far:"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Transform Change"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Translate:"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Rotate (deg.):"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Scale (ratio):"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Transform Type"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Pre"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Post"
+msgstr ""
+
+#: editor/plugins/spatial_editor_plugin.cpp
+msgid "Nameless gizmo"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Sprite is empty!"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Can't convert a sprite using animation frames to mesh."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't replace by mesh."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Sprite"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Simplification: "
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Grow (Pixels): "
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Update Preview"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Settings:"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "ERROR: Couldn't load frame resource!"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Add Frame"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Resource clipboard is empty or not a texture!"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Paste Frame"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Add Empty"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Change Animation FPS"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "(empty)"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Animations:"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "New Animation"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Speed (FPS):"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Loop"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Animation Frames:"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Insert Empty (Before)"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Insert Empty (After)"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Move (Before)"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "Move (After)"
+msgstr ""
+
+#: editor/plugins/sprite_frames_editor_plugin.cpp
+msgid "SpriteFrames"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Set Region Rect"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Set Margin"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Snap Mode:"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+#: scene/resources/visual_shader.cpp
+msgid "None"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Pixel Snap"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Grid Snap"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Auto Slice"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Offset:"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Step:"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "Sep.:"
+msgstr ""
+
+#: editor/plugins/texture_region_editor_plugin.cpp
+msgid "TextureRegion"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Can't save theme to file:"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Add All Items"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Add All"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Remove All Items"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Remove All"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Edit theme..."
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Theme editing menu."
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Add Class Items"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Remove Class Items"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Create Empty Template"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Create Empty Editor Template"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Create From Current Editor Theme"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "CheckBox Radio1"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "CheckBox Radio2"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Item"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Check Item"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Checked Item"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Radio Item"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Checked Radio Item"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Has"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Many"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Has,Many,Options"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Tab 1"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Tab 2"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Tab 3"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Data Type:"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Icon"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp editor/rename_dialog.cpp
+msgid "Style"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Font"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Color"
+msgstr ""
+
+#: editor/plugins/theme_editor_plugin.cpp
+msgid "Constant"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Erase Selection"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Fix Invalid Tiles"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Cut Selection"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Paint TileMap"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Line Draw"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Rectangle Paint"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Bucket Fill"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Erase TileMap"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Find Tile"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Transpose"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Mirror X"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Mirror Y"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Paint Tile"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Pick Tile"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Copy Selection"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Rotate left"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Rotate right"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Flip horizontally"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Flip vertically"
+msgstr ""
+
+#: editor/plugins/tile_map_editor_plugin.cpp
+msgid "Clear transform"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Add Texture(s) to TileSet."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove selected Texture from TileSet."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create from Scene"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Merge from Scene"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Next Coordinate"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Select the next shape, subtile, or Tile."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Previous Coordinate"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Select the previous shape, subtile, or Tile."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Copy bitmask."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Paste bitmask."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Erase bitmask."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create a new rectangle."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create a new polygon."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Keep polygon inside region Rect."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Enable snap and show grid (configurable via the Inspector)."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Display Tile Names (Hold Alt Key)"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove selected texture? This will remove all tiles which use it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "You haven't selected a texture to remove."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create from scene? This will overwrite all current tiles."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Merge from scene?"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove Texture"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "%s file(s) were not added because was already on the list."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid ""
+"Drag handles to edit Rect.\n"
+"Click on another Tile to edit it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Delete selected Rect."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid ""
+"Select current edited sub-tile.\n"
+"Click on another Tile to edit it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Delete polygon."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid ""
+"LMB: Set bit on.\n"
+"RMB: Set bit off.\n"
+"Click on another Tile to edit it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid ""
+"Select sub-tile to use as icon, this will be also used on invalid autotile "
+"bindings.\n"
+"Click on another Tile to edit it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid ""
+"Select sub-tile to change its priority.\n"
+"Click on another Tile to edit it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid ""
+"Select sub-tile to change its z index.\n"
+"Click on another Tile to edit it."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Set Tile Region"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create Tile"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Set Tile Icon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Edit Tile Bitmask"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Edit Collision Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Edit Occlusion Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Edit Navigation Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Paste Tile Bitmask"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Clear Tile Bitmask"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Make Polygon Concave"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Make Polygon Convex"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove Tile"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove Collision Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove Occlusion Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Remove Navigation Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Edit Tile Priority"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Edit Tile Z Index"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create Collision Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "Create Occlusion Polygon"
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "This property can't be changed."
+msgstr ""
+
+#: editor/plugins/tile_set_editor_plugin.cpp
+msgid "TileSet"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Set Uniform Name"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Set Input Default Port"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Add Node to Visual Shader"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Duplicate Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Visual Shader Input Type Changed"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Vertex"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Fragment"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Light"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "VisualShader"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Edit Visual Property"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Visual Shader Mode Changed"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Runnable"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Delete patch '%s' from list?"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Delete preset '%s'?"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid ""
+"Failed to export the project for platform '%s'.\n"
+"Export templates seem to be missing or invalid."
+msgstr ""
+
+#: editor/project_export.cpp
+msgid ""
+"Failed to export the project for platform '%s'.\n"
+"This might be due to a configuration issue in the export preset or your "
+"export settings."
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Release"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Exporting All"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "The given export path doesn't exist:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export templates for this platform are missing/corrupted:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Presets"
+msgstr ""
+
+#: editor/project_export.cpp editor/project_settings_editor.cpp
+msgid "Add..."
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export Path"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Resources"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export all resources in the project"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export selected scenes (and dependencies)"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export selected resources (and dependencies)"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export Mode:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Resources to export:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid ""
+"Filters to export non-resource files (comma separated, e.g: *.json, *.txt)"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid ""
+"Filters to exclude files from project (comma separated, e.g: *.json, *.txt)"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Patches"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Make Patch"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Features"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Custom (comma-separated):"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Feature List:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Script"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Script Export Mode:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Text"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Compiled"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Encrypted (Provide Key Below)"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Invalid Encryption Key (must be 64 characters long)"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Script Encryption Key (256-bits as hex):"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export PCK/Zip"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export mode?"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export All"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export templates for this platform are missing:"
+msgstr ""
+
+#: editor/project_export.cpp
+msgid "Export With Debug"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "The path does not exist."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Invalid '.zip' project file, does not contain a 'project.godot' file."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Please choose an empty folder."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Please choose a 'project.godot' or '.zip' file."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Directory already contains a Godot project."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Imported Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Invalid Project Name."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Couldn't create folder."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "There is already a folder in this path with the specified name."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "It would be a good idea to name your project."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Invalid project path (changed anything?)."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"Couldn't load project.godot in project path (error %d). It may be missing or "
+"corrupted."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Couldn't edit project.godot in project path."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Couldn't create project.godot in project path."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "The following files failed extraction from package:"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Rename Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "New Game Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Import Existing Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Import & Edit"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Create New Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Create & Edit"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Install Project:"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Install & Edit"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Project Name:"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Create folder"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Project Path:"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Project Installation Path:"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Browse"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Renderer:"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "OpenGL ES 3.0"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"Higher visual quality\n"
+"All features available\n"
+"Incompatible with older hardware\n"
+"Not recommended for web games"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "OpenGL ES 2.0"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"Lower visual quality\n"
+"Some features not available\n"
+"Works on most hardware\n"
+"Recommended for web games"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Renderer can be changed later, but scenes may need to be adjusted."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Unnamed Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Can't open project at '%s'."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Are you sure to open more than one project?"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"The following project settings file does not specify the version of Godot "
+"through which it was created.\n"
+"\n"
+"%s\n"
+"\n"
+"If you proceed with opening it, it will be converted to Godot's current "
+"configuration file format.\n"
+"Warning: You will not be able to open the project with previous versions of "
+"the engine anymore."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"The following project settings file was generated by an older engine "
+"version, and needs to be converted for this version:\n"
+"\n"
+"%s\n"
+"\n"
+"Do you want to convert it?\n"
+"Warning: You will not be able to open the project with previous versions of "
+"the engine anymore."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"The project settings were created by a newer engine version, whose settings "
+"are not compatible with this version."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"Can't run project: no main scene defined.\n"
+"Please edit the project and set the main scene in \"Project Settings\" under "
+"the \"Application\" category."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"Can't run project: Assets need to be imported.\n"
+"Please edit the project to trigger the initial import."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Are you sure to run more than one project?"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Remove project from the list? (Folder contents will not be modified)"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"Language changed.\n"
+"The UI will update next time the editor or project manager starts."
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"You are about the scan %s folders for existing Godot projects. Do you "
+"confirm?"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Project Manager"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Project List"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Scan"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Select a Folder to Scan"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "New Project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Templates"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Exit"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Restart Now"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid "Can't run project"
+msgstr ""
+
+#: editor/project_manager.cpp
+msgid ""
+"You don't currently have any projects.\n"
+"Would you like to explore the official example projects in the Asset Library?"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Key "
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Joy Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Joy Axis"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Mouse Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid ""
+"Invalid action name. it cannot be empty nor contain '/', ':', '=', '\\' or "
+"'\"'"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Action '%s' already exists!"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Rename Input Action Event"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Change Action deadzone"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Add Input Action Event"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "All Devices"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Device"
+msgstr ""
+
+#: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
+msgid "Shift+"
+msgstr ""
+
+#: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
+msgid "Alt+"
+msgstr ""
+
+#: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
+msgid "Control+"
+msgstr ""
+
+#: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
+msgid "Press a Key..."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Mouse Button Index:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Left Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Right Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Middle Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Wheel Up Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Wheel Down Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Wheel Left Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Wheel Right Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "X Button 1"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "X Button 2"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Joypad Axis Index:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Axis"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Joypad Button Index:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Erase Input Action"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Erase Input Action Event"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Add Event"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Button"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Left Button."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Right Button."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Middle Button."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Wheel Up."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Wheel Down."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Add Global Property"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Select a setting item first!"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "No property '%s' exists."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Setting '%s' is internal, and it can't be deleted."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Delete Item"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid ""
+"Invalid action name. It cannot be empty nor contain '/', ':', '=', '\\' or "
+"'\"'."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Already existing"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Add Input Action"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Error saving settings."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Settings saved OK."
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Override for Feature"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Add Translation"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Remove Translation"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Add Remapped Path"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Resource Remap Add Remap"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Change Resource Remap Language"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Remove Resource Remap"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Remove Resource Remap Option"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Changed Locale Filter"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Changed Locale Filter Mode"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Project Settings (project.godot)"
+msgstr ""
+
+#: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
+msgid "General"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Override For..."
+msgstr ""
+
+#: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
+msgid "Editor must be restarted for changes to take effect"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Input Map"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Action:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Action"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Deadzone"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Device:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Index:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Localization"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Translations"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Translations:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Remaps"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Resources:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Remaps by Locale:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Locale"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Locales Filter"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Show all locales"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Show only selected locales"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Filter mode:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "Locales:"
+msgstr ""
+
+#: editor/project_settings_editor.cpp
+msgid "AutoLoad"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Ease In"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Ease Out"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Zero"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Easing In-Out"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Easing Out-In"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "File..."
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Dir..."
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Assign"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Select Node"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Error loading file: Not a resource!"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Pick a Node"
+msgstr ""
+
+#: editor/property_editor.cpp
+msgid "Bit %d, val %d."
+msgstr ""
+
+#: editor/property_selector.cpp
+msgid "Select Property"
+msgstr ""
+
+#: editor/property_selector.cpp
+msgid "Select Virtual Method"
+msgstr ""
+
+#: editor/property_selector.cpp
+msgid "Select Method"
+msgstr ""
+
+#: editor/pvrtc_compress.cpp
+msgid "Could not execute PVRTC tool:"
+msgstr ""
+
+#: editor/pvrtc_compress.cpp
+msgid "Can't load back converted image using PVRTC tool:"
+msgstr ""
+
+#: editor/rename_dialog.cpp editor/scene_tree_dock.cpp
+msgid "Batch Rename"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Prefix"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Suffix"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Advanced options"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Substitute"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Node name"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Node's parent name, if available"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Node type"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Current scene name"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Root node name"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid ""
+"Sequential integer counter.\n"
+"Compare counter options."
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Per Level counter"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "If set the counter restarts for each group of child nodes"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Initial value for the counter"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Step"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Amount by which counter is incremented for each node"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Padding"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid ""
+"Minimum number of digits for the counter.\n"
+"Missing digits are padded with leading zeros."
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Regular Expressions"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Post-Process"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Keep"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "CamelCase to under_scored"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "under_scored to CamelCase"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Case"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "To Lowercase"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "To Uppercase"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Reset"
+msgstr ""
+
+#: editor/rename_dialog.cpp
+msgid "Error"
+msgstr ""
+
+#: editor/reparent_dialog.cpp editor/scene_tree_dock.cpp
+msgid "Reparent Node"
+msgstr ""
+
+#: editor/reparent_dialog.cpp
+msgid "Reparent Location (Select new Parent):"
+msgstr ""
+
+#: editor/reparent_dialog.cpp
+msgid "Keep Global Transform"
+msgstr ""
+
+#: editor/reparent_dialog.cpp editor/scene_tree_dock.cpp
+msgid "Reparent"
+msgstr ""
+
+#: editor/run_settings_dialog.cpp
+msgid "Run Mode:"
+msgstr ""
+
+#: editor/run_settings_dialog.cpp
+msgid "Current Scene"
+msgstr ""
+
+#: editor/run_settings_dialog.cpp
+msgid "Main Scene"
+msgstr ""
+
+#: editor/run_settings_dialog.cpp
+msgid "Main Scene Arguments:"
+msgstr ""
+
+#: editor/run_settings_dialog.cpp
+msgid "Scene Run Settings"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "No parent to instance the scenes at."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Error loading scene from %s"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid ""
+"Cannot instance the scene '%s' because the current scene exists within one "
+"of its nodes."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Instance Scene(s)"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Instance Child Scene"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Clear Script"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "This operation can't be done on the tree root."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Move Node In Parent"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Move Nodes In Parent"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Duplicate Node(s)"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Can't reparent nodes in inherited scenes, order of nodes can't change."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Node must belong to the edited scene to become root."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Instantiated scenes can't become root"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Make node as Root"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)?"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Can not perform with the root node."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "This operation can't be done on instanced scenes."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Save New Scene As..."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid ""
+"Disabling \"editable_instance\" will cause all properties of the node to be "
+"reverted to their default."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Editable Children"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Load As Placeholder"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Make Local"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "New Scene Root"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Create Root Node:"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "2D Scene"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "3D Scene"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "User Interface"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Custom Node"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Can't operate on nodes from a foreign scene!"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Can't operate on nodes the current scene inherits from!"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Attach Script"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Remove Node(s)"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid ""
+"Couldn't save new scene. Likely dependencies (instances) couldn't be "
+"satisfied."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Error saving scene."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Error duplicating scene to save it."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Sub-Resources"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Clear Inheritance"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Open documentation"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Add Child Node"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Change Type"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Extend Script"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Make Scene Root"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Merge From Scene"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp editor/script_editor_debugger.cpp
+msgid "Save Branch as Scene"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Copy Node Path"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Delete (No Confirm)"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Add/Create a New Node"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid ""
+"Instance a scene file as a Node. Creates an inherited scene if no root node "
+"exists."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Attach a new or existing script for the selected node."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Clear a script for the selected node."
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Remote"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Local"
+msgstr ""
+
+#: editor/scene_tree_dock.cpp
+msgid "Clear Inheritance? (No Undo!)"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Toggle Visible"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Node configuration warning:"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid ""
+"Node has connection(s) and group(s).\n"
+"Click to show signals dock."
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid ""
+"Node has connections.\n"
+"Click to show signals dock."
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid ""
+"Node is in group(s).\n"
+"Click to show groups dock."
+msgstr ""
+
+#: editor/scene_tree_editor.cpp editor/script_create_dialog.cpp
+msgid "Open Script"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid ""
+"Node is locked.\n"
+"Click to unlock it."
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid ""
+"Children are not selectable.\n"
+"Click to make selectable."
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Toggle Visibility"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid ""
+"AnimationPlayer is pinned.\n"
+"Click to unpin."
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Invalid node name, the following characters are not allowed:"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Rename Node"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Scene Tree (Nodes):"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Node Configuration Warning!"
+msgstr ""
+
+#: editor/scene_tree_editor.cpp
+msgid "Select a Node"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Error loading template '%s'"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Error - Could not create script in filesystem."
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Error loading script from %s"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "N/A"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Open Script/Choose Location"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Path is empty"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Filename is empty"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Path is not local"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Invalid base path"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Directory of the same name exists"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "File exists, will be reused"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Invalid extension"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Wrong extension chosen"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Invalid Path"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Invalid class name"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Invalid inherited parent name or path"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Script valid"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Allowed: a-z, A-Z, 0-9 and _"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Built-in script (into scene file)"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Create new script file"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Load existing script file"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Language"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Inherits"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Class Name"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Template"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Built-in Script"
+msgstr ""
+
+#: editor/script_create_dialog.cpp
+msgid "Attach Node Script"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Remote "
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Bytes:"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Stack Trace"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Pick one or more items from the list to display the graph."
+msgstr ""
+
+#: editor/script_editor_debugger.cpp modules/mono/editor/mono_bottom_panel.cpp
+msgid "Errors"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Child Process Connected"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Copy Error"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Inspect Previous Instance"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Inspect Next Instance"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Stack Frames"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Profiler"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Monitor"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Value"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Monitors"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "List of Video Memory Usage by Resource:"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Total:"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Video Mem"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Resource Path"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Type"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Format"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Usage"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Misc"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Clicked Control:"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Clicked Control Type:"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Live Edit Root:"
+msgstr ""
+
+#: editor/script_editor_debugger.cpp
+msgid "Set From Tree"
+msgstr ""
+
+#: editor/settings_config_dialog.cpp
+msgid "Erase Shortcut"
+msgstr ""
+
+#: editor/settings_config_dialog.cpp
+msgid "Restore Shortcut"
+msgstr ""
+
+#: editor/settings_config_dialog.cpp
+msgid "Change Shortcut"
+msgstr ""
+
+#: editor/settings_config_dialog.cpp
+msgid "Shortcuts"
+msgstr ""
+
+#: editor/settings_config_dialog.cpp
+msgid "Binding"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Light Radius"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change AudioStreamPlayer3D Emission Angle"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Camera FOV"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Camera Size"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Notifier AABB"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Particles AABB"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Probe Extents"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp modules/csg/csg_gizmos.cpp
+msgid "Change Sphere Shape Radius"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp modules/csg/csg_gizmos.cpp
+msgid "Change Box Shape Extents"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Capsule Shape Radius"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Capsule Shape Height"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Cylinder Shape Radius"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Cylinder Shape Height"
+msgstr ""
+
+#: editor/spatial_editor_gizmos.cpp
+msgid "Change Ray Shape Length"
+msgstr ""
+
+#: modules/csg/csg_gizmos.cpp
+msgid "Change Cylinder Radius"
+msgstr ""
+
+#: modules/csg/csg_gizmos.cpp
+msgid "Change Cylinder Height"
+msgstr ""
+
+#: modules/csg/csg_gizmos.cpp
+msgid "Change Torus Inner Radius"
+msgstr ""
+
+#: modules/csg/csg_gizmos.cpp
+msgid "Change Torus Outer Radius"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Select the dynamic library for this entry"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Select dependencies of the library for this entry"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Remove current entry"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Double click to create a new entry"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Platform:"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Platform"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Dynamic Library"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "Add an architecture entry"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_editor_plugin.cpp
+msgid "GDNativeLibrary"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_singleton_editor.cpp
+msgid "Library"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_singleton_editor.cpp
+msgid "Status"
+msgstr ""
+
+#: modules/gdnative/gdnative_library_singleton_editor.cpp
+msgid "Libraries: "
+msgstr ""
+
+#: modules/gdnative/register_types.cpp
+msgid "GDNative"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Step argument is zero!"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Not a script with an instance"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Not based on a script"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Not based on a resource file"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Invalid instance dictionary format (missing @path)"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Invalid instance dictionary format (can't load script at @path)"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Invalid instance dictionary format (invalid script at @path)"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Invalid instance dictionary (invalid subclasses)"
+msgstr ""
+
+#: modules/gdscript/gdscript_functions.cpp
+msgid "Object can't provide a length."
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Next Plane"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Previous Plane"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Plane:"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Next Floor"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Previous Floor"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Floor:"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "GridMap Delete Selection"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "GridMap Fill Selection"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "GridMap Duplicate Selection"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "GridMap Paint"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Grid Map"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Snap View"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Clip Disabled"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Clip Above"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Clip Below"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Edit X Axis"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Edit Y Axis"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Edit Z Axis"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Rotate X"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Rotate Y"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Rotate Z"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Back Rotate X"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Back Rotate Y"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Back Rotate Z"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Cursor Clear Rotation"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Create Area"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Create Exterior Connector"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Erase Area"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Clear Selection"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Fill Selection"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "GridMap Settings"
+msgstr ""
+
+#: modules/gridmap/grid_map_editor_plugin.cpp
+msgid "Pick Distance:"
+msgstr ""
+
+#: modules/mono/csharp_script.cpp
+msgid "Class name can't be a reserved keyword"
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Generating solution..."
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Generating C# project..."
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Failed to create solution."
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Failed to save solution."
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Done"
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Failed to create C# project."
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Mono"
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "About C# support"
+msgstr ""
+
+#: modules/mono/editor/godotsharp_editor.cpp
+msgid "Create C# solution"
+msgstr ""
+
+#: modules/mono/editor/mono_bottom_panel.cpp
+msgid "Builds"
+msgstr ""
+
+#: modules/mono/editor/mono_bottom_panel.cpp
+msgid "Build Project"
+msgstr ""
+
+#: modules/mono/editor/mono_bottom_panel.cpp
+msgid "View log"
+msgstr ""
+
+#: modules/mono/mono_gd/gd_mono_utils.cpp
+msgid "End of inner exception stack trace"
+msgstr ""
+
+#: modules/recast/navigation_mesh_editor_plugin.cpp
+msgid "Bake NavMesh"
+msgstr ""
+
+#: modules/recast/navigation_mesh_editor_plugin.cpp
+msgid "Clear the navigation mesh."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Setting up Configuration..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Calculating grid size..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Creating heightfield..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Marking walkable triangles..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Constructing compact heightfield..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Eroding walkable area..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Partitioning..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Creating contours..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Creating polymesh..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Converting to native navigation mesh..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Navigation Mesh Generator Setup:"
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Parsing Geometry..."
+msgstr ""
+
+#: modules/recast/navigation_mesh_generator.cpp
+msgid "Done!"
+msgstr ""
+
+#: modules/visual_script/visual_script.cpp
+msgid ""
+"A node yielded without working memory, please read the docs on how to yield "
+"properly!"
+msgstr ""
+
+#: modules/visual_script/visual_script.cpp
+msgid ""
+"Node yielded, but did not return a function state in the first working "
+"memory."
+msgstr ""
+
+#: modules/visual_script/visual_script.cpp
+msgid ""
+"Return value must be assigned to first element of node working memory! Fix "
+"your node please."
+msgstr ""
+
+#: modules/visual_script/visual_script.cpp
+msgid "Node returned an invalid sequence output: "
+msgstr ""
+
+#: modules/visual_script/visual_script.cpp
+msgid "Found sequence bit but not the node in the stack, report bug!"
+msgstr ""
+
+#: modules/visual_script/visual_script.cpp
+msgid "Stack overflow with stack depth: "
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change Signal Arguments"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change Argument Type"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change Argument name"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Set Variable Default Value"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Set Variable Type"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Variables:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Name is not a valid identifier:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Name already in use by another func/var/signal:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Rename Function"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Rename Variable"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Rename Signal"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Function"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Variable"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Signal"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change Expression"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Remove VisualScript Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Duplicate VisualScript Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Hold %s to drop a Getter. Hold Shift to drop a generic signature."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Hold Ctrl to drop a Getter. Hold Shift to drop a generic signature."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Hold %s to drop a simple reference to the node."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Hold Ctrl to drop a simple reference to the node."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Hold %s to drop a Variable Setter."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Hold Ctrl to drop a Variable Setter."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Preload Node"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Node(s) From Tree"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Getter Property"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Add Setter Property"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change Base Type"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Move Node(s)"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Remove VisualScript Node"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Connect Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Connect Node Data"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Connect Node Sequence"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Script already has function '%s'"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Change Input Value"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Resize Comment"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Can't copy the function node."
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Clipboard is empty!"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Paste VisualScript Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Remove Function"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Remove Variable"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Editing Variable:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Remove Signal"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Editing Signal:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Base Type:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Members:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Available Nodes:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Select or create a function to edit graph"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Edit Signal Arguments:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Edit Variable:"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Delete Selected"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Find Node Type"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Copy Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Cut Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Paste Nodes"
+msgstr ""
+
+#: modules/visual_script/visual_script_editor.cpp
+msgid "Edit Member"
+msgstr ""
+
+#: modules/visual_script/visual_script_flow_control.cpp
+msgid "Input type not iterable: "
+msgstr ""
+
+#: modules/visual_script/visual_script_flow_control.cpp
+msgid "Iterator became invalid"
+msgstr ""
+
+#: modules/visual_script/visual_script_flow_control.cpp
+msgid "Iterator became invalid: "
+msgstr ""
+
+#: modules/visual_script/visual_script_func_nodes.cpp
+msgid "Invalid index property name."
+msgstr ""
+
+#: modules/visual_script/visual_script_func_nodes.cpp
+msgid "Base object is not a Node!"
+msgstr ""
+
+#: modules/visual_script/visual_script_func_nodes.cpp
+msgid "Path does not lead Node!"
+msgstr ""
+
+#: modules/visual_script/visual_script_func_nodes.cpp
+msgid "Invalid index property name '%s' in node %s."
+msgstr ""
+
+#: modules/visual_script/visual_script_nodes.cpp
+msgid ": Invalid argument of type: "
+msgstr ""
+
+#: modules/visual_script/visual_script_nodes.cpp
+msgid ": Invalid arguments: "
+msgstr ""
+
+#: modules/visual_script/visual_script_nodes.cpp
+msgid "VariableGet not found in script: "
+msgstr ""
+
+#: modules/visual_script/visual_script_nodes.cpp
+msgid "VariableSet not found in script: "
+msgstr ""
+
+#: modules/visual_script/visual_script_nodes.cpp
+msgid "Custom node has no _step() method, can't process graph."
+msgstr ""
+
+#: modules/visual_script/visual_script_nodes.cpp
+msgid ""
+"Invalid return value from _step(), must be integer (seq out), or string "
+"(error)."
+msgstr ""
+
+#: modules/visual_script/visual_script_property_selector.cpp
+msgid "Search VisualScript"
+msgstr ""
+
+#: modules/visual_script/visual_script_property_selector.cpp
+msgid "Get %s"
+msgstr ""
+
+#: modules/visual_script/visual_script_property_selector.cpp
+msgid "Set %s"
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "Package name is missing."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "Package segments must be of non-zero length."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "The character '%s' is not allowed in Android application package names."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "A digit cannot be the first character in a package segment."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "The character '%s' cannot be the first character in a package segment."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "The package must have at least one '.' separator."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "ADB executable not configured in the Editor Settings."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "OpenJDK jarsigner not configured in the Editor Settings."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "Debug keystore not configured in the Editor Settings nor in the preset."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "Invalid public key for APK expansion."
+msgstr ""
+
+#: platform/android/export/export.cpp
+msgid "Invalid package name:"
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "Identifier is missing."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "Identifier segments must be of non-zero length."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "The character '%s' is not allowed in Identifier."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "A digit cannot be the first character in a Identifier segment."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid ""
+"The character '%s' cannot be the first character in a Identifier segment."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "The Identifier must have at least one '.' separator."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "App Store Team ID not specified - cannot configure the project."
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "Invalid Identifier:"
+msgstr ""
+
+#: platform/iphone/export/export.cpp
+msgid "Required icon is not specified in the preset."
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Run in Browser"
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Run exported HTML in the system's default browser."
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Could not write file:"
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Could not open template for export:"
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Invalid export template:"
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Could not read custom HTML shell:"
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Could not read boot splash image file:"
+msgstr ""
+
+#: platform/javascript/export/export.cpp
+msgid "Using default boot splash image."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid package unique name."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid product GUID."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid publisher GUID."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid background color."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid Store Logo image dimensions (should be 50x50)."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid square 44x44 logo image dimensions (should be 44x44)."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid square 71x71 logo image dimensions (should be 71x71)."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid square 150x150 logo image dimensions (should be 150x150)."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid square 310x310 logo image dimensions (should be 310x310)."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid wide 310x150 logo image dimensions (should be 310x150)."
+msgstr ""
+
+#: platform/uwp/export/export.cpp
+msgid "Invalid splash screen image dimensions (should be 620x300)."
+msgstr ""
+
+#: scene/2d/animated_sprite.cpp
+msgid ""
+"A SpriteFrames resource must be created or set in the 'Frames' property in "
+"order for AnimatedSprite to display frames."
+msgstr ""
+
+#: scene/2d/canvas_modulate.cpp
+msgid ""
+"Only one visible CanvasModulate is allowed per scene (or set of instanced "
+"scenes). The first created one will work, while the rest will be ignored."
+msgstr ""
+
+#: scene/2d/collision_object_2d.cpp
+msgid ""
+"This node has no shape, so it can't collide or interact with other objects.\n"
+"Consider adding a CollisionShape2D or CollisionPolygon2D as a child to "
+"define its shape."
+msgstr ""
+
+#: scene/2d/collision_polygon_2d.cpp
+msgid ""
+"CollisionPolygon2D only serves to provide a collision shape to a "
+"CollisionObject2D derived node. Please only use it as a child of Area2D, "
+"StaticBody2D, RigidBody2D, KinematicBody2D, etc. to give them a shape."
+msgstr ""
+
+#: scene/2d/collision_polygon_2d.cpp
+msgid "An empty CollisionPolygon2D has no effect on collision."
+msgstr ""
+
+#: scene/2d/collision_shape_2d.cpp
+msgid ""
+"CollisionShape2D only serves to provide a collision shape to a "
+"CollisionObject2D derived node. Please only use it as a child of Area2D, "
+"StaticBody2D, RigidBody2D, KinematicBody2D, etc. to give them a shape."
+msgstr ""
+
+#: scene/2d/collision_shape_2d.cpp
+msgid ""
+"A shape must be provided for CollisionShape2D to function. Please create a "
+"shape resource for it!"
+msgstr ""
+
+#: scene/2d/cpu_particles_2d.cpp
+msgid ""
+"CPUParticles2D animation requires the usage of a CanvasItemMaterial with "
+"\"Particles Animation\" enabled."
+msgstr ""
+
+#: scene/2d/light_2d.cpp
+msgid ""
+"A texture with the shape of the light must be supplied to the 'texture' "
+"property."
+msgstr ""
+
+#: scene/2d/light_occluder_2d.cpp
+msgid ""
+"An occluder polygon must be set (or drawn) for this occluder to take effect."
+msgstr ""
+
+#: scene/2d/light_occluder_2d.cpp
+msgid "The occluder polygon for this occluder is empty. Please draw a polygon!"
+msgstr ""
+
+#: scene/2d/navigation_polygon.cpp
+msgid ""
+"A NavigationPolygon resource must be set or created for this node to work. "
+"Please set a property or draw a polygon."
+msgstr ""
+
+#: scene/2d/navigation_polygon.cpp
+msgid ""
+"NavigationPolygonInstance must be a child or grandchild to a Navigation2D "
+"node. It only provides navigation data."
+msgstr ""
+
+#: scene/2d/parallax_layer.cpp
+msgid ""
+"ParallaxLayer node only works when set as child of a ParallaxBackground node."
+msgstr ""
+
+#: scene/2d/particles_2d.cpp
+msgid ""
+"GPU-based particles are not supported by the GLES2 video driver.\n"
+"Use the CPUParticles2D node instead. You can use the \"Convert to "
+"CPUParticles\" option for this purpose."
+msgstr ""
+
+#: scene/2d/particles_2d.cpp scene/3d/particles.cpp
+msgid ""
+"A material to process the particles is not assigned, so no behavior is "
+"imprinted."
+msgstr ""
+
+#: scene/2d/particles_2d.cpp
+msgid ""
+"Particles2D animation requires the usage of a CanvasItemMaterial with "
+"\"Particles Animation\" enabled."
+msgstr ""
+
+#: scene/2d/path_2d.cpp
+msgid "PathFollow2D only works when set as a child of a Path2D node."
+msgstr ""
+
+#: scene/2d/physics_body_2d.cpp
+msgid ""
+"Size changes to RigidBody2D (in character or rigid modes) will be overridden "
+"by the physics engine when running.\n"
+"Change the size in children collision shapes instead."
+msgstr ""
+
+#: scene/2d/remote_transform_2d.cpp
+msgid "Path property must point to a valid Node2D node to work."
+msgstr ""
+
+#: scene/2d/skeleton_2d.cpp
+msgid "This Bone2D chain should end at a Skeleton2D node."
+msgstr ""
+
+#: scene/2d/skeleton_2d.cpp
+msgid "A Bone2D only works with a Skeleton2D or another Bone2D as parent node."
+msgstr ""
+
+#: scene/2d/skeleton_2d.cpp
+msgid ""
+"This bone lacks a proper REST pose. Go to the Skeleton2D node and set one."
+msgstr ""
+
+#: scene/2d/visibility_notifier_2d.cpp
+msgid ""
+"VisibilityEnable2D works best when used with the edited scene root directly "
+"as parent."
+msgstr ""
+
+#: scene/3d/arvr_nodes.cpp
+msgid "ARVRCamera must have an ARVROrigin node as its parent"
+msgstr ""
+
+#: scene/3d/arvr_nodes.cpp
+msgid "ARVRController must have an ARVROrigin node as its parent"
+msgstr ""
+
+#: scene/3d/arvr_nodes.cpp
+msgid ""
+"The controller id must not be 0 or this controller will not be bound to an "
+"actual controller"
+msgstr ""
+
+#: scene/3d/arvr_nodes.cpp
+msgid "ARVRAnchor must have an ARVROrigin node as its parent"
+msgstr ""
+
+#: scene/3d/arvr_nodes.cpp
+msgid ""
+"The anchor id must not be 0 or this anchor will not be bound to an actual "
+"anchor"
+msgstr ""
+
+#: scene/3d/arvr_nodes.cpp
+msgid "ARVROrigin requires an ARVRCamera child node"
+msgstr ""
+
+#: scene/3d/baked_lightmap.cpp
+msgid "%d%%"
+msgstr ""
+
+#: scene/3d/baked_lightmap.cpp
+msgid "(Time Left: %d:%02d s)"
+msgstr ""
+
+#: scene/3d/baked_lightmap.cpp
+msgid "Plotting Meshes: "
+msgstr ""
+
+#: scene/3d/baked_lightmap.cpp
+msgid "Plotting Lights:"
+msgstr ""
+
+#: scene/3d/baked_lightmap.cpp scene/3d/gi_probe.cpp
+msgid "Finishing Plot"
+msgstr ""
+
+#: scene/3d/baked_lightmap.cpp
+msgid "Lighting Meshes: "
+msgstr ""
+
+#: scene/3d/collision_object.cpp
+msgid ""
+"This node has no shape, so it can't collide or interact with other objects.\n"
+"Consider adding a CollisionShape or CollisionPolygon as a child to define "
+"its shape."
+msgstr ""
+
+#: scene/3d/collision_polygon.cpp
+msgid ""
+"CollisionPolygon only serves to provide a collision shape to a "
+"CollisionObject derived node. Please only use it as a child of Area, "
+"StaticBody, RigidBody, KinematicBody, etc. to give them a shape."
+msgstr ""
+
+#: scene/3d/collision_polygon.cpp
+msgid "An empty CollisionPolygon has no effect on collision."
+msgstr ""
+
+#: scene/3d/collision_shape.cpp
+msgid ""
+"CollisionShape only serves to provide a collision shape to a CollisionObject "
+"derived node. Please only use it as a child of Area, StaticBody, RigidBody, "
+"KinematicBody, etc. to give them a shape."
+msgstr ""
+
+#: scene/3d/collision_shape.cpp
+msgid ""
+"A shape must be provided for CollisionShape to function. Please create a "
+"shape resource for it!"
+msgstr ""
+
+#: scene/3d/collision_shape.cpp
+msgid ""
+"Plane shapes don't work well and will be removed in future versions. Please "
+"don't use them."
+msgstr ""
+
+#: scene/3d/cpu_particles.cpp
+msgid "Nothing is visible because no mesh has been assigned."
+msgstr ""
+
+#: scene/3d/cpu_particles.cpp
+msgid ""
+"CPUParticles animation requires the usage of a SpatialMaterial with "
+"\"Billboard Particles\" enabled."
+msgstr ""
+
+#: scene/3d/gi_probe.cpp
+msgid "Plotting Meshes"
+msgstr ""
+
+#: scene/3d/gi_probe.cpp
+msgid ""
+"GIProbes are not supported by the GLES2 video driver.\n"
+"Use a BakedLightmap instead."
+msgstr ""
+
+#: scene/3d/navigation_mesh.cpp
+msgid "A NavigationMesh resource must be set or created for this node to work."
+msgstr ""
+
+#: scene/3d/navigation_mesh.cpp
+msgid ""
+"NavigationMeshInstance must be a child or grandchild to a Navigation node. "
+"It only provides navigation data."
+msgstr ""
+
+#: scene/3d/particles.cpp
+msgid ""
+"GPU-based particles are not supported by the GLES2 video driver.\n"
+"Use the CPUParticles node instead. You can use the \"Convert to CPUParticles"
+"\" option for this purpose."
+msgstr ""
+
+#: scene/3d/particles.cpp
+msgid ""
+"Nothing is visible because meshes have not been assigned to draw passes."
+msgstr ""
+
+#: scene/3d/particles.cpp
+msgid ""
+"Particles animation requires the usage of a SpatialMaterial with \"Billboard "
+"Particles\" enabled."
+msgstr ""
+
+#: scene/3d/path.cpp
+msgid "PathFollow only works when set as a child of a Path node."
+msgstr ""
+
+#: scene/3d/path.cpp
+msgid ""
+"PathFollow ROTATION_ORIENTED requires \"Up Vector\" enabled in its parent "
+"Path's Curve resource."
+msgstr ""
+
+#: scene/3d/physics_body.cpp
+msgid ""
+"Size changes to RigidBody (in character or rigid modes) will be overridden "
+"by the physics engine when running.\n"
+"Change the size in children collision shapes instead."
+msgstr ""
+
+#: scene/3d/remote_transform.cpp
+msgid "Path property must point to a valid Spatial node to work."
+msgstr ""
+
+#: scene/3d/soft_body.cpp
+msgid "This body will be ignored until you set a mesh"
+msgstr ""
+
+#: scene/3d/soft_body.cpp
+msgid ""
+"Size changes to SoftBody will be overridden by the physics engine when "
+"running.\n"
+"Change the size in children collision shapes instead."
+msgstr ""
+
+#: scene/3d/sprite_3d.cpp
+msgid ""
+"A SpriteFrames resource must be created or set in the 'Frames' property in "
+"order for AnimatedSprite3D to display frames."
+msgstr ""
+
+#: scene/3d/vehicle_body.cpp
+msgid ""
+"VehicleWheel serves to provide a wheel system to a VehicleBody. Please use "
+"it as a child of a VehicleBody."
+msgstr ""
+
+#: scene/3d/world_environment.cpp
+msgid "WorldEnvironment needs an Environment resource."
+msgstr ""
+
+#: scene/3d/world_environment.cpp
+msgid ""
+"Only one WorldEnvironment is allowed per scene (or set of instanced scenes)."
+msgstr ""
+
+#: scene/3d/world_environment.cpp
+msgid ""
+"This WorldEnvironment is ignored. Either add a Camera (for 3D scenes) or set "
+"this environment's Background Mode to Canvas (for 2D scenes)."
+msgstr ""
+
+#: scene/animation/animation_blend_tree.cpp
+msgid "On BlendTree node '%s', animation not found: '%s'"
+msgstr ""
+
+#: scene/animation/animation_blend_tree.cpp
+msgid "Animation not found: '%s'"
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "In node '%s', invalid animation: '%s'."
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "Invalid animation: '%s'."
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "Nothing connected to input '%s' of node '%s'."
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "A root AnimationNode for the graph is not set."
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "Path to an AnimationPlayer node containing animations is not set."
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "Path set for AnimationPlayer does not lead to an AnimationPlayer node."
+msgstr ""
+
+#: scene/animation/animation_tree.cpp
+msgid "AnimationPlayer root is not a valid node."
+msgstr ""
+
+#: scene/animation/animation_tree_player.cpp
+msgid "This node has been deprecated. Use AnimationTree instead."
+msgstr ""
+
+#: scene/gui/color_picker.cpp
+msgid "Pick a color from the screen."
+msgstr ""
+
+#: scene/gui/color_picker.cpp
+msgid "Raw Mode"
+msgstr ""
+
+#: scene/gui/color_picker.cpp
+msgid "Switch between hexadecimal and code values."
+msgstr ""
+
+#: scene/gui/color_picker.cpp
+msgid "Add current color as a preset."
+msgstr ""
+
+#: scene/gui/container.cpp
+msgid ""
+"Container by itself serves no purpose unless a script configures it's "
+"children placement behavior.\n"
+"If you dont't intend to add a script, then please use a plain 'Control' node "
+"instead."
+msgstr ""
+
+#: scene/gui/dialogs.cpp
+msgid "Alert!"
+msgstr ""
+
+#: scene/gui/dialogs.cpp
+msgid "Please Confirm..."
+msgstr ""
+
+#: scene/gui/file_dialog.cpp
+msgid "Go to parent folder."
+msgstr ""
+
+#: scene/gui/popup.cpp
+msgid ""
+"Popups will hide by default unless you call popup() or any of the popup*() "
+"functions. Making them visible for editing is fine though, but they will "
+"hide upon running."
+msgstr ""
+
+#: scene/gui/range.cpp
+msgid "If exp_edit is true min_value must be > 0."
+msgstr ""
+
+#: scene/gui/scroll_container.cpp
+msgid ""
+"ScrollContainer is intended to work with a single child control.\n"
+"Use a container as child (VBox,HBox,etc), or a Control and set the custom "
+"minimum size manually."
+msgstr ""
+
+#: scene/gui/tree.cpp
+msgid "(Other)"
+msgstr ""
+
+#: scene/main/scene_tree.cpp
+msgid ""
+"Default Environment as specified in Project Settings (Rendering -> "
+"Environment -> Default Environment) could not be loaded."
+msgstr ""
+
+#: scene/main/viewport.cpp
+msgid ""
+"This viewport is not set as render target. If you intend for it to display "
+"its contents directly to the screen, make it a child of a Control so it can "
+"obtain a size. Otherwise, make it a RenderTarget and assign its internal "
+"texture to some node for display."
+msgstr ""
+
+#: scene/resources/dynamic_font.cpp
+msgid "Error initializing FreeType."
+msgstr ""
+
+#: scene/resources/dynamic_font.cpp
+msgid "Unknown font format."
+msgstr ""
+
+#: scene/resources/dynamic_font.cpp
+msgid "Error loading font."
+msgstr ""
+
+#: scene/resources/dynamic_font.cpp
+msgid "Invalid font size."
+msgstr ""
+
+#: scene/resources/visual_shader.cpp
+msgid "Input"
+msgstr ""
+
+#: scene/resources/visual_shader_nodes.cpp
+msgid "Invalid source for shader."
+msgstr ""
+
+#: servers/visual/shader_language.cpp
+msgid "Assignment to function."
+msgstr ""
+
+#: servers/visual/shader_language.cpp
+msgid "Assignment to uniform."
+msgstr ""
+
+#: servers/visual/shader_language.cpp
+msgid "Varyings can only be assigned in vertex function."
+msgstr ""
diff --git a/editor/translations/fr.po b/editor/translations/fr.po
index 67a11b2224..37175d7001 100644
--- a/editor/translations/fr.po
+++ b/editor/translations/fr.po
@@ -59,7 +59,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-12 15:25+0000\n"
+"PO-Revision-Date: 2019-04-05 13:04+0000\n"
 "Last-Translator: Caye Pierre <pierrecaye@laposte.net>\n"
 "Language-Team: French <https://hosted.weblate.org/projects/godot-engine/"
 "godot/fr/>\n"
@@ -68,7 +68,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
-"X-Generator: Weblate 3.5.1\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -473,13 +473,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Grouper les pistes par nœuds ou les afficher dans une liste simple."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Pas (s) : "
+#, fuzzy
+msgid "Snap:"
+msgstr "Aligner"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valeur du pas d'animation."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "IPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -2539,7 +2548,7 @@ msgstr "Documentation en ligne"
 
 #: editor/editor_node.cpp
 msgid "Q&A"
-msgstr "Questions et Réponses"
+msgstr "Q & R"
 
 #: editor/editor_node.cpp
 msgid "Issue Tracker"
@@ -3893,6 +3902,11 @@ msgid "Delete Node"
 msgstr "Supprimer un nœud"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Supprimer nœud(s)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Activer/désactiver le filtre"
 
@@ -4873,8 +4887,34 @@ msgid "Layout"
 msgstr "Disposition sur l'écran"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Insérer les clefs."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Insérer une clé (pistes existantes)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Insérer une clé d'animation"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4946,6 +4986,52 @@ msgstr "Modifier le polygone (supprimer un point)"
 msgid "Set Handle"
 msgstr "Définir la poignée"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Erreur de chargement d'image :"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Pas de pixels avec transparence > 128 dans l'image..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Charger Masque d'Émission"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Effacer Masque d'Émission"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Particules"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Compte de Points Générés :"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Masque d'émission"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Capturer depuis Pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Couleurs d'émission"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5305,52 +5391,15 @@ msgstr ""
 "Ne peut définir qu'un point dans un matériau de processus ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Erreur de chargement d'image :"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Pas de pixels avec transparence > 128 dans l'image..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Charger Masque d'Émission"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Effacer Masque d'Émission"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Convertir en CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Particules"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Compte de Points Générés :"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Temps de Génération (sec) :"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Masque d'émission"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Capturer depuis Pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Couleurs d'Émission"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Des faces ne contiennent pas de zone !"
@@ -5862,7 +5911,8 @@ msgid "Save Theme As..."
 msgstr "Enregistrer le thème sous…"
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Référence de classe"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5994,11 +6044,11 @@ msgstr "Ouvrir la documentation Godot en ligne"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Demande de documentation"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Aider à améliorer la documentation de Godot en donnant vos réactions"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6690,6 +6740,26 @@ msgid "Nameless gizmo"
 msgstr "Gadget sans nom"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Créer un maillage 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Créer un Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Créer le polygone de collision"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Créer un polygone occulteur"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Le sprite est vide !"
 
@@ -6704,16 +6774,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Géométrie invalide, impossible de remplacer par un maillage."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Géométrie invalide, impossible de remplacer par un maillage."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Géométrie invalide, impossible de remplacer par un maillage."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Géométrie invalide, impossible de remplacer par un maillage."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Convertir en maillage 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Créer un maillage 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Déplacer le polygone"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Créer le polygone de collision"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Créer un polygone occulteur"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7300,6 +7397,11 @@ msgid "Duplicate Nodes"
 msgstr "Dupliquer le(s) nœud(s)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Supprimer un nœud"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Type d’entrée Visual Shader changée"
 
@@ -8523,10 +8625,6 @@ msgid "Open documentation"
 msgstr "Ouvrir la documentation"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Supprimer nœud(s)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Ajouter un nœud enfant"
 
@@ -10437,14 +10535,17 @@ msgstr "Affectation à l'uniforme."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Les variations ne peuvent être affectées que dans la fonction vertex."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Pas (s) : "
+
+#~ msgid "Insert keys."
+#~ msgstr "Insérer les clefs."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Instancie la(les) scène(s) sélectionnée(s) en tant qu'enfant(s) du nœud "
 #~ "sélectionné."
 
-#~ msgid "FPS"
-#~ msgstr "IPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Avertissements :"
 
diff --git a/editor/translations/he.po b/editor/translations/he.po
index 1adcb6b56c..8ef45fd8d8 100644
--- a/editor/translations/he.po
+++ b/editor/translations/he.po
@@ -441,14 +441,22 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "צעד/י�:"
+msgid "Snap:"
+msgstr "הצמדה"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
 msgid "Animation step value."
 msgstr "שקופיות ההנפשה"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3823,6 +3831,11 @@ msgid "Delete Node"
 msgstr "מחיקת שורה"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "החלפת מצב מועדפי�"
@@ -4805,10 +4818,35 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "הכנס מפתח"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
 msgstr ""
 
@@ -4877,6 +4915,52 @@ msgstr "עריכת מצולע (הסרת נקודה)"
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5229,22 +5313,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5252,30 +5320,9 @@ msgstr "המרה ל�ותיות גדולות"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5803,7 +5850,7 @@ msgid "Save Theme As..."
 msgstr "שמירת ערכת עיצוב בש�…"
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6648,6 +6695,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "יצירת %s חדש"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "יצירת מצולע"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "יצירת מצולע"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "יצירת תיקייה"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6660,18 +6727,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "המרה ל�ותיות גדולות"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "יצירת %s חדש"
+msgid "Convert to Polygon2D"
+msgstr "הזזת מצולע"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "יצירת מצולע"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7280,6 +7368,11 @@ msgid "Duplicate Nodes"
 msgstr "שכפול"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "מחיקת שורה"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8465,10 +8558,6 @@ msgid "Open documentation"
 msgstr "פתיחת התיעוד המקוון של Godot"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10221,6 +10310,10 @@ msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
 #, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "צעד/י�:"
+
+#, fuzzy
 #~ msgid "Warnings:"
 #~ msgstr "�זהרות"
 
diff --git a/editor/translations/hi.po b/editor/translations/hi.po
index 1758532805..f7bf57678d 100644
--- a/editor/translations/hi.po
+++ b/editor/translations/hi.po
@@ -424,13 +424,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3763,6 +3771,11 @@ msgid "Delete Node"
 msgstr "को हटा दें"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4724,10 +4737,35 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "चाबी यहां डालें"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
 msgstr ""
 
@@ -4796,6 +4834,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5146,52 +5230,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5707,7 +5754,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6530,6 +6577,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "�क नया बना�ं"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "सदस�यता बना�ं"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "सदस�यता बना�ं"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "�क नया बना�ं"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6542,17 +6609,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "�क नया बना�ं"
+msgid "Convert to Polygon2D"
+msgstr "सदस�यता बना�ं"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "सदस�यता बना�ं"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7143,6 +7231,11 @@ msgid "Duplicate Nodes"
 msgstr "प�रतिलिपि"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "को हटा दें"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8300,10 +8393,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/hr.po b/editor/translations/hr.po
index 6cfdf720ba..a7501f9b14 100644
--- a/editor/translations/hr.po
+++ b/editor/translations/hr.po
@@ -404,13 +404,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3664,6 +3672,11 @@ msgid "Delete Node"
 msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4615,7 +4628,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4686,6 +4723,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5036,52 +5119,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5585,7 +5631,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6403,6 +6449,22 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6415,15 +6477,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -6994,6 +7076,10 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8143,10 +8229,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/hu.po b/editor/translations/hu.po
index 016e540184..2f1aa1b660 100644
--- a/editor/translations/hu.po
+++ b/editor/translations/hu.po
@@ -446,14 +446,22 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "Lépés (mp):"
+msgid "Snap:"
+msgstr "Illesztés"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
 msgid "Animation step value."
 msgstr "Az animációs fa érvényes."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3935,6 +3943,11 @@ msgid "Delete Node"
 msgstr "Node létrehozás"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Zavarmentes mód váltása."
@@ -4940,9 +4953,34 @@ msgid "Layout"
 msgstr "Elrendezés"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Kulcsok Beszúrása"
+msgid "Insert keys (based on mask)."
+msgstr "Kulcs Beszúrása (Meglévő Nyomvonalakra)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Animáció kulcs beillesztés"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -5015,6 +5053,52 @@ msgstr "Sokszög Szerkesztése (Pont Eltávolítása)"
 msgid "Set Handle"
 msgstr "Fogantyú Beállítása"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Hiba a kép betöltésekor:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Nem létezik egyetlen pixel sem >128-as átlátszósággal a képben..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Kibocsátási Maszk Betöltése"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Kibocsátási Maszk Törlése"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Részecskék"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Generált Pontok Száma:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Kibocsátási Maszk"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Kinyerés Pixelből"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Kibocsátási Színek"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5369,22 +5453,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Csak egy ParticlesMaterial feldolgozó anyagba állíthat pontot"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Hiba a kép betöltésekor:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Nem létezik egyetlen pixel sem >128-as átlátszósággal a képben..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Kibocsátási Maszk Betöltése"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Kibocsátási Maszk Törlése"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5392,30 +5460,9 @@ msgstr "Konvertálás Nagybetűsre"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Részecskék"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Generált Pontok Száma:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Generálási Idő (mp):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Kibocsátási Maszk"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Kinyerés Pixelből"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Kibocsátási Színek"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Az oldalak nem tartalmaznak területet!"
@@ -5953,7 +6000,8 @@ msgid "Save Theme As..."
 msgstr "Téma Mentése Másként..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Osztály Referencia"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6796,6 +6844,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Körvonalháló Készítése"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Sokszög Létrehozása"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Navigációs Sokszög Létrehozása"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "�rnyékoló Sokszög Létrehozása"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "A háló üres!"
 
@@ -6808,18 +6876,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Konvertálás Nagybetűsre"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Körvonalháló Készítése"
+msgid "Convert to Polygon2D"
+msgstr "Sokszög Mozgatása"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Navigációs Sokszög Létrehozása"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "�rnyékoló Sokszög Létrehozása"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7433,6 +7523,11 @@ msgid "Duplicate Nodes"
 msgstr "Animáció kulcsok megkettőzése"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Node létrehozás"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8612,10 +8707,6 @@ msgid "Open documentation"
 msgstr "Godot online dokumentáció megnyitása"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10385,6 +10476,14 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "Lépés (mp):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Kulcsok Beszúrása"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Kiválasztott Scene(k) példányosítása a kiválasztott Node gyermekeként."
diff --git a/editor/translations/id.po b/editor/translations/id.po
index a9346d9af1..876990c0c1 100644
--- a/editor/translations/id.po
+++ b/editor/translations/id.po
@@ -18,12 +18,13 @@
 # Evan Hyacinth <muhammad.ivan669@gmail.com>, 2018, 2019.
 # Guntur Sarwohadi <gsarwohadi@gmail.com>, 2019.
 # Alphin Albukhari <alphinalbukhari5@gmail.com>, 2019.
+# I Dewa Agung Adhinata <agungnata2003@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-08 15:04+0000\n"
-"Last-Translator: Evan Hyacinth <muhammad.ivan669@gmail.com>\n"
+"PO-Revision-Date: 2019-04-05 13:04+0000\n"
+"Last-Translator: I Dewa Agung Adhinata <agungnata2003@gmail.com>\n"
 "Language-Team: Indonesian <https://hosted.weblate.org/projects/godot-engine/"
 "godot/id/>\n"
 "Language: id\n"
@@ -31,7 +32,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Weblate 3.5.1-dev\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -429,13 +430,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Susun Track-track dengan node atau tampilkan sebagai daftar biasa."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+#, fuzzy
+msgid "Snap:"
 msgstr "Snap (d): "
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Nilai Langkah Animasi."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -1388,7 +1398,7 @@ msgid ""
 "Target platform requires 'ETC2' texture compression for GLES3. Enable "
 "'Import Etc 2' in Project Settings."
 msgstr ""
-"Platform target membutuhkan kompressi tekstur 'ETC' untuk GLES2. Aktifkan "
+"Platform target membutuhkan kompressi tekstur 'ETC2' untuk GLES3. Aktifkan "
 "dukungan di Pengaturan Proyek."
 
 #: editor/editor_export.cpp
@@ -1528,9 +1538,8 @@ msgid "Previous Folder"
 msgstr "Tab sebelumnya"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Next Folder"
-msgstr "Buat Folder"
+msgstr "Folder Berikutnya"
 
 #: editor/editor_file_dialog.cpp
 msgid "Go to parent folder"
@@ -1542,14 +1551,12 @@ msgid "(Un)favorite current folder."
 msgstr "Tidak dapat membuat folder."
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
-#, fuzzy
 msgid "View items as a grid of thumbnails."
 msgstr "Tampilkan item sebagai grid thumbnail"
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
-#, fuzzy
 msgid "View items as a list."
-msgstr "Tampilkan item sebagai daftar"
+msgstr "Tampilkan item sebagai daftar."
 
 #: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
 msgid "Directories & Files:"
@@ -1774,8 +1781,9 @@ msgid "Project export failed with error code %d."
 msgstr "Ekspor proyek gagal dengan kode kesalahan% d."
 
 #: editor/editor_node.cpp
+#, fuzzy
 msgid "Imported resources can't be saved."
-msgstr ""
+msgstr "Resource yang telah diimpor tidak dapat disimpan."
 
 #: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
 #: scene/gui/dialogs.cpp
@@ -1787,10 +1795,13 @@ msgid "Error saving resource!"
 msgstr "Error menyimpan resource!"
 
 #: editor/editor_node.cpp
+#, fuzzy
 msgid ""
 "This resource can't be saved because it does not belong to the edited scene. "
 "Make it unique first."
 msgstr ""
+"Resourse ini tidak dapat disimpan karena bukan di scene yang diedit. Buat "
+"unik dahulu."
 
 #: editor/editor_node.cpp editor/plugins/animation_player_editor_plugin.cpp
 msgid "Save Resource As..."
@@ -2330,9 +2341,8 @@ msgid "Tools"
 msgstr "Alat-alat"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Open Project Data Folder"
-msgstr "Buka Project Manager?"
+msgstr "Buka Project Data Manager"
 
 #: editor/editor_node.cpp
 msgid "Quit to Project List"
@@ -2449,7 +2459,7 @@ msgstr "Mode Layar Penuh"
 #: editor/editor_node.cpp
 #, fuzzy
 msgid "Open Editor Data/Settings Folder"
-msgstr "Pengaturan Editor"
+msgstr "Buka Editor Data/Folder Pengaturan"
 
 #: editor/editor_node.cpp
 msgid "Open Editor Data Folder"
@@ -2458,7 +2468,7 @@ msgstr "Buka Folder Data Editor"
 #: editor/editor_node.cpp
 #, fuzzy
 msgid "Open Editor Settings Folder"
-msgstr "Pengaturan Editor"
+msgstr "Buka Folder Pengaturan Editor"
 
 #: editor/editor_node.cpp editor/project_export.cpp
 msgid "Manage Export Templates"
@@ -2542,9 +2552,8 @@ msgstr "Mengubah driver video harus memulai ulang editor."
 
 #: editor/editor_node.cpp editor/project_settings_editor.cpp
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Save & Restart"
-msgstr "Simpan & Keluar"
+msgstr "Simpan & Mulai Ulang"
 
 #: editor/editor_node.cpp
 #, fuzzy
@@ -2581,9 +2590,8 @@ msgid "Node"
 msgstr "Node"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Expand Bottom Panel"
-msgstr "Perluas semua"
+msgstr "Perluas Panel Bawah"
 
 #: editor/editor_node.cpp scene/resources/visual_shader.cpp
 msgid "Output"
@@ -2662,9 +2670,8 @@ msgid "Thumbnail..."
 msgstr "Gambar Kecil..."
 
 #: editor/editor_plugin_settings.cpp
-#, fuzzy
 msgid "Edit Plugin"
-msgstr "Sunting Bidang"
+msgstr "Sunting Plug-in"
 
 #: editor/editor_plugin_settings.cpp
 msgid "Installed Plugins:"
@@ -2688,15 +2695,13 @@ msgid "Status:"
 msgstr "Status:"
 
 #: editor/editor_plugin_settings.cpp
-#, fuzzy
 msgid "Edit:"
-msgstr "Sunting"
+msgstr "Sunting:"
 
 #: editor/editor_profiler.cpp editor/plugins/animation_state_machine_editor.cpp
 #: editor/rename_dialog.cpp
-#, fuzzy
 msgid "Start"
-msgstr "Mulai!"
+msgstr "Mulai"
 
 #: editor/editor_profiler.cpp
 msgid "Measure:"
@@ -2769,13 +2774,12 @@ msgid "Invalid RID"
 msgstr "Path Tidak Sah."
 
 #: editor/editor_properties.cpp
-#, fuzzy
 msgid ""
 "The selected resource (%s) does not match any type expected for this "
 "property (%s)."
 msgstr ""
-"Resource terpilih (%s) tidak sesuai dengan tipe yang diharapkan untuk "
-"properti ini (%s)."
+"Resource yang terpilih (%s) tidak sesuai dengan tipe apapun yang diharapkan "
+"untuk properti ini (%s)."
 
 #: editor/editor_properties.cpp
 msgid ""
@@ -2803,9 +2807,8 @@ msgid "Pick a Viewport"
 msgstr "Pilih Viewport"
 
 #: editor/editor_properties.cpp editor/property_editor.cpp
-#, fuzzy
 msgid "New Script"
-msgstr "Scene Baru"
+msgstr "Skrip Baru"
 
 #: editor/editor_properties.cpp editor/property_editor.cpp
 msgid "New %s"
@@ -2841,11 +2844,11 @@ msgstr "Sambungkan Ke Node:"
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Open Editor"
-msgstr "Buka dalam Penyunting"
+msgstr "Buka Editor"
 
 #: editor/editor_properties.cpp editor/property_editor.cpp
 msgid "Selected node is not a Viewport!"
-msgstr "Node terpilih bukanlah Viewport!"
+msgstr "Node yang terpilih bukanlah Viewport!"
 
 #: editor/editor_properties_array_dict.cpp
 msgid "Size: "
@@ -3907,6 +3910,11 @@ msgid "Delete Node"
 msgstr "Metode Publik:"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Alihkan track ini ke nyala/mati."
@@ -4932,8 +4940,33 @@ msgid "Layout"
 msgstr "Simpan Penampilan"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Sisipkan Key Anim"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "Sisipkan Key Anim"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -5007,6 +5040,52 @@ msgstr "Sunting Bidang (Hapus Titik)"
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Galat saat memuat gambar:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partikel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5367,22 +5446,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Galat saat memuat gambar:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5390,30 +5453,9 @@ msgstr "Sambungkan Ke Node:"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partikel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5950,7 +5992,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6810,6 +6852,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Buat Baru %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Buat Bidang"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Buat Bidang"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Buat Folder"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6822,18 +6884,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Sambungkan Ke Node:"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Buat Baru %s"
+msgid "Convert to Polygon2D"
+msgstr "Sambungkan Ke Node:"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Buat Bidang"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7454,6 +7537,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplikat Key"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Metode Publik:"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8675,10 +8763,6 @@ msgid "Open documentation"
 msgstr "Buka baru-baru ini"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/is.po b/editor/translations/is.po
index 644f19939b..cc911642be 100644
--- a/editor/translations/is.po
+++ b/editor/translations/is.po
@@ -426,13 +426,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3699,6 +3707,11 @@ msgid "Delete Node"
 msgstr "Anim DELETE-lyklar"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4656,7 +4669,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4727,6 +4764,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5077,52 +5160,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5629,7 +5675,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6447,6 +6493,24 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Afrita val"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Breyta Viðbót"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6459,15 +6523,36 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Breyta Viðbót"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -7052,6 +7137,11 @@ msgid "Duplicate Nodes"
 msgstr "Tvíteknir lyklar"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Anim DELETE-lyklar"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8205,10 +8295,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/it.po b/editor/translations/it.po
index 45ebfd0b3c..3dbfa81714 100644
--- a/editor/translations/it.po
+++ b/editor/translations/it.po
@@ -37,8 +37,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-28 09:36+0000\n"
-"Last-Translator: MassiminoilTrace <omino.gis@gmail.com>\n"
+"PO-Revision-Date: 2019-04-14 13:04+0000\n"
+"Last-Translator: Marco Galli <mrcgll98@gmail.com>\n"
 "Language-Team: Italian <https://hosted.weblate.org/projects/godot-engine/"
 "godot/it/>\n"
 "Language: it\n"
@@ -132,7 +132,7 @@ msgstr "Elimina chiavi d'animazione"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Change Keyframe Time"
-msgstr "Cambia istante della chiave d'animazione"
+msgstr "Anim Cambia Tempo Keyframe"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Change Transition"
@@ -194,7 +194,7 @@ msgstr "Durata Animazione (in secondi)"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation Looping"
-msgstr "Ciclicità animazione"
+msgstr "Ciclicità Animazione"
 
 #: editor/animation_track_editor.cpp
 #: modules/visual_script/visual_script_editor.cpp
@@ -446,13 +446,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Raggruppa le tracce per nodo o mostra una lista semplice."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Snap (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Snap"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valore del passo dell'animazione."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3851,6 +3860,11 @@ msgid "Delete Node"
 msgstr "Elimina Nodo"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Elimina Nodo(i)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Attiva/Disattiva il Filtro"
 
@@ -4831,8 +4845,34 @@ msgid "Layout"
 msgstr "Layout"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Inserisci chiavi."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Inserisci Keys (Ins)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Inserisci una chiave d'animazione"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4904,6 +4944,52 @@ msgstr "Modifica Poly (Rimuovi Punto)"
 msgid "Set Handle"
 msgstr "Imposta Maniglia"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Errore di caricamento immagine:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Nessun pixel con trasparenza >128 nell'immagine..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Carica Maschera Emissione"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Cancella Maschera Emissione"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Particelle"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Conteggio Punti Generati:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Maschera Emissione"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Cattura da Pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Colori Emissione"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5259,52 +5345,15 @@ msgstr ""
 "ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Errore di caricamento immagine:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Nessun pixel con trasparenza >128 nell'immagine..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Carica Maschera Emissione"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Cancella Maschera Emissione"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Converti in CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Particelle"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Conteggio Punti Generati:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Tempo di Generazione (sec):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Maschera Emissione"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Cattura da Pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Colori Emissione"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Le facce non contengono area!"
@@ -5818,7 +5867,8 @@ msgid "Save Theme As..."
 msgstr "Salva Tema Come..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Riferimento di Classe"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6645,6 +6695,26 @@ msgid "Nameless gizmo"
 msgstr "Gizmo senza nome"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Crea Mesh 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Crea Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Crea Poligono di Collisione"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Crea Poligono di occlusione"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Lo sprite è vuoto!"
 
@@ -6659,16 +6729,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Geometria non valida, impossibile sostituirla con una mesh."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Geometria non valida, impossibile sostituirla con una mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Geometria non valida, impossibile sostituirla con una mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Geometria non valida, impossibile sostituirla con una mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Converti in Mesh 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Crea Mesh 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Sposta Poligono"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Crea Poligono di Collisione"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Crea Poligono di occlusione"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7255,6 +7352,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplica Nodi"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Elimina Nodo"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Tipo di Input Visual Shader Cambiato"
 
@@ -8475,10 +8577,6 @@ msgid "Open documentation"
 msgstr "Apri la documentazione"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Elimina Nodo(i)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Aggiungi Nodo Figlio"
 
@@ -10376,12 +10474,15 @@ msgstr "Assegnazione all'uniforme."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Varyings può essere assegnato solo nella funzione del vertice."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Snap (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Inserisci chiavi."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Istanzia le scene selezionate come figlie del nodo selezionato."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #, fuzzy
 #~ msgid "Warnings:"
 #~ msgstr "Avvertimento"
@@ -11928,9 +12029,6 @@ msgstr "Varyings può essere assegnato solo nella funzione del vertice."
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "Impossibile accedere alla subdirectory:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "Inserisci Keys (Ins)"
-
 #~ msgid "Top (Num7)"
 #~ msgstr "Alto (Num7)"
 
diff --git a/editor/translations/ja.po b/editor/translations/ja.po
index 6ab3436f15..67a472c64d 100644
--- a/editor/translations/ja.po
+++ b/editor/translations/ja.po
@@ -26,8 +26,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-19 15:04+0000\n"
-"Last-Translator: nitenook <admin@alterbaum.net>\n"
+"PO-Revision-Date: 2019-04-19 16:33+0000\n"
+"Last-Translator: Wataru Onuki <watonu@magadou.com>\n"
 "Language-Team: Japanese <https://hosted.weblate.org/projects/godot-engine/"
 "godot/ja/>\n"
 "Language: ja\n"
@@ -445,13 +445,22 @@ msgstr ""
 "ノード���トラックをグループ化�る��プレーン�リスト���表示���。"
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "スナップ (秒): "
+#, fuzzy
+msgid "Snap:"
+msgstr "スナップ"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "アニメーションステップ�値。"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "フレームレート"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -2329,7 +2338,7 @@ msgstr "プロジェクト"
 
 #: editor/editor_node.cpp
 msgid "Project Settings"
-msgstr "プロジェクト�設定"
+msgstr "プロジェクト設定"
 
 #: editor/editor_node.cpp editor/project_export.cpp
 msgid "Export"
@@ -3843,6 +3852,11 @@ msgid "Delete Node"
 msgstr "ノードを削除"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "ノードを削除"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "��トラック� オン/オフ を切り替�。"
@@ -4827,8 +4841,34 @@ msgid "Layout"
 msgstr "レイアウト"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "キーを挿入�る。"
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "キーを (既存�トラック�) 挿入"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "アニメーションキーを挿入"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
@@ -4904,6 +4944,55 @@ msgstr "�リゴンを編集（点を除去）"
 msgid "Set Handle"
 msgstr "�ンドルを設定�る"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "画�読�込�エラー:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "画�内��明度�128以上�ピクセル��り��ん..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Load Emission Mask"
+msgstr "発光(Emission)マスクを読�込む"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Clear Emission Mask"
+msgstr "発光(Emission)マスクをクリア"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "パーティクル"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "生����イント�数:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "発光(Emission)マスク"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#, fuzzy
+msgid "Capture from Pixel"
+msgstr "ピクセル�ら�得"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "発光(Emission)色"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUパーティクル"
@@ -5281,55 +5370,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "画�読�込�エラー:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "画�内��明度�128以上�ピクセル��り��ん..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Load Emission Mask"
-msgstr "発光(Emission)マスクを読�込む"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Clear Emission Mask"
-msgstr "発光(Emission)マスクをクリア"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "CPUパーティクル�変�"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "パーティクル"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "生����イント�数:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "生�時間 (秒):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "発光(Emission)マスク"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#, fuzzy
-msgid "Capture from Pixel"
-msgstr "ピクセル�ら�得"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "発光(Emission)色"
-
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Faces contain no area!"
@@ -5870,7 +5919,8 @@ msgid "Save Theme As..."
 msgstr "テーマを��を����存..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " クラスリファレンス"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6392,9 +6442,8 @@ msgid "This operation requires a single selected node."
 msgstr "一�ノードを指定��������作�����ん"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Lock View Rotation"
-msgstr "情報を表示"
+msgstr "ビュー�回転を固定"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Display Normal"
@@ -6602,7 +6651,7 @@ msgstr "トランスフォーム"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Snap object to floor"
-msgstr ""
+msgstr "オブジェクトを底��スナップ"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
@@ -6719,6 +6768,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "アウトラインメッシュを生�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Polygon3Dを生�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "コリジョン �リゴンを生�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "オクルーダー�リゴンを生�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "�存�るパス��り��ん!"
 
@@ -6731,17 +6800,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "スプライト"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "2Dメッシュ�変�"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "アウトラインメッシュを生�"
+msgid "Convert to Polygon2D"
+msgstr "�リゴンを移動"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "コリジョン �リゴンを生�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "オクルーダー�リゴンを生�"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7361,6 +7453,11 @@ msgid "Duplicate Nodes"
 msgstr "ノードを複製"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "ノードを削除"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -7410,6 +7507,8 @@ msgid ""
 "Failed to export the project for platform '%s'.\n"
 "Export templates seem to be missing or invalid."
 msgstr ""
+"プラットフォーム '%s' ��プロジェクト�エクス�ート�失敗����。\n"
+"エクス�ート用テンプレート�存在������る��異常��るよ���。"
 
 #: editor/project_export.cpp
 msgid ""
@@ -7417,6 +7516,9 @@ msgid ""
 "This might be due to a configuration issue in the export preset or your "
 "export settings."
 msgstr ""
+"プラットフォーム '%s' ��プロジェクト�エクス�ート�失敗����。\n"
+"エクス�ート用プリセット�る��エクス�ート設定��題��る�能性��り�"
+"�。"
 
 #: editor/project_export.cpp
 #, fuzzy
@@ -7724,9 +7826,8 @@ msgid "Unnamed Project"
 msgstr "�無��プロジェクト"
 
 #: editor/project_manager.cpp
-#, fuzzy
 msgid "Can't open project at '%s'."
-msgstr "プロジェクトを開���ん"
+msgstr "次�場所�プロジェクトを開���ん '%s'。"
 
 #: editor/project_manager.cpp
 msgid "Are you sure to open more than one project?"
@@ -7771,7 +7872,6 @@ msgid ""
 msgstr ""
 
 #: editor/project_manager.cpp
-#, fuzzy
 msgid ""
 "Can't run project: no main scene defined.\n"
 "Please edit the project and set the main scene in \"Project Settings\" under "
@@ -7779,7 +7879,7 @@ msgid ""
 msgstr ""
 "�択��シーン '%s' ��シーン ファイル���り��ん�有効�も�を�択���"
 "���？\n"
-"'アプリケーション' カテゴリ�下�'プロジェクト�設定'�変更����。"
+"'アプリケーション' カテゴリ�下�'プロジェクト設定'�変更����。"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -8609,10 +8709,6 @@ msgid "Open documentation"
 msgstr "ドキュメントを開�"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "ノードを削除"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "�ノードを追加"
 
@@ -10551,12 +10647,15 @@ msgstr "uniform ��割り当�。"
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Varying�頂点関数���割り当�る�������。"
 
+#~ msgid "Snap (s): "
+#~ msgstr "スナップ (秒): "
+
+#~ msgid "Insert keys."
+#~ msgstr "キーを挿入�る。"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "�択��シーンを�択��ノード�����インスタンス化���。"
 
-#~ msgid "FPS"
-#~ msgstr "フレームレート"
-
 #~ msgid "Warnings:"
 #~ msgstr "警告:"
 
diff --git a/editor/translations/ka.po b/editor/translations/ka.po
index cb8aed504b..26eabd113b 100644
--- a/editor/translations/ka.po
+++ b/editor/translations/ka.po
@@ -441,13 +441,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "დ��ჯგუფე ჩ�ნ�წერები კვ�ნძების მიხედვით �ნ �ჩვენე რ�გ�რც უბრ�ლ� სი�."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+#, fuzzy
+msgid "Snap:"
 msgstr "ნ�ბიჯი (s): "
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "�ნიმ�ციის ნ�ბიჯის ღირებულებ�."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3758,6 +3767,11 @@ msgid "Delete Node"
 msgstr "წ�შლ�"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "ჩ�ნ�წერის ჩ�რთვ� / გ�მ�რთვ�"
@@ -4723,8 +4737,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "�ნიმ გ�ს�ღების ჩ�ყენებ�"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "�ნიმ გ�ს�ღების ჩ�ყენებ�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4796,6 +4835,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5146,52 +5231,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5706,7 +5754,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6532,6 +6580,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "�ხ�ლი %s შექმნ�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "შექმნ�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "შექმნ�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "შექმნ�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6544,17 +6612,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "�ხ�ლი %s შექმნ�"
+msgid "Convert to Polygon2D"
+msgstr "შექმნ�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "შექმნ�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7146,6 +7235,11 @@ msgid "Duplicate Nodes"
 msgstr "�ნიმ�ციის გ�ს�ღებების �სლის შექმნ�"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "წ�შლ�"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8301,10 +8395,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/ko.po b/editor/translations/ko.po
index 903a54b102..eb7964f81d 100644
--- a/editor/translations/ko.po
+++ b/editor/translations/ko.po
@@ -12,12 +12,13 @@
 # 송태섭 <xotjq237@gmail.com>, 2018, 2019.
 # JY <yimjisoo@mailfence.com>, 2018.
 # Ch. <ccwpc@hanmail.net>, 2018.
+# moolow <copyhyeon@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-19 15:04+0000\n"
-"Last-Translator: 송태섭 <xotjq237@gmail.com>\n"
+"PO-Revision-Date: 2019-04-05 13:04+0000\n"
+"Last-Translator: moolow <copyhyeon@gmail.com>\n"
 "Language-Team: Korean <https://hosted.weblate.org/projects/godot-engine/"
 "godot/ko/>\n"
 "Language: ko\n"
@@ -421,13 +422,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "노드 별로 그룹� 트랙 하거나 �반 목�으로 표시합니다."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "스냅: "
+#, fuzzy
+msgid "Snap:"
+msgstr "스냅"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "애니메�션 단계 값."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "초당 프레임"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3791,6 +3801,11 @@ msgid "Delete Node"
 msgstr "노드 삭제"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "노드 삭제"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "필터 켜기/�기 토글"
 
@@ -4757,8 +4772,34 @@ msgid "Layout"
 msgstr "레�아웃"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "키 삽입."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "키 삽입 (Ins 키)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "애니메�션 키 삽입"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4830,6 +4871,52 @@ msgstr "�리곤 편집 (� 삭제)"
 msgid "Set Handle"
 msgstr "핸들 설정"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "�미지 불러오기 오류:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "�미지� 투명�가 128보다 � 픽셀� 없습니다..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "�미션 마스� 불러오기"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "�미션 마스� 정리"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "파티�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "�성� ��트 개수:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "�미션 마스�(Emission Mask)"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "픽셀로부터 캡�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "�미션 칼�"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPU파티�"
@@ -5180,52 +5267,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "오� ParticlesMaterial 프로세스 메테리얼 안� ��트만 설정 가능"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "�미지 불러오기 오류:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "�미지� 투명�가 128보다 � 픽셀� 없습니다..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "�미션 마스� 불러오기"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "�미션 마스� 정리"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "CPU파티�로 변환"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "파티�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "�성� ��트 개수:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "�성 시간 (초):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "�미션 마스�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "픽셀로부터 캡�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "�미션 칼�"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "페�스가 �역� 가지고 있지 않습니다!"
@@ -5735,7 +5785,8 @@ msgid "Save Theme As..."
 msgstr "테마 다른 �름으로 저장..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " �래스 레�런스"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5867,11 +5918,11 @@ msgstr "Godot 온�� 문서 열기"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "문서 요청"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "피드백으로 Godot 문서를 개선하는� �움� 주세요"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6561,6 +6612,26 @@ msgid "Nameless gizmo"
 msgstr "�름없는 오브�트� 중심�"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "2D 메시 만들기"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "�리곤3D 만들기"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "내비게�션 충� �리곤 만들기"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Occluder �리곤 만들기"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "스프��트가 비었습니다!"
 
@@ -6573,16 +6644,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "유효하지 않� 형�, 메시로 대체할 수 없습니다."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "유효하지 않� 형�, 메시로 대체할 수 없습니다."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "유효하지 않� 형�, 메시로 대체할 수 없습니다."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "유효하지 않� 형�, 메시로 대체할 수 없습니다."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "스프��트"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "2D 메시로 전환"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "2D 메시 만들기"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "�리곤 ��"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "내비게�션 충� �리곤 만들기"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Occluder �리곤 만들기"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7168,6 +7266,11 @@ msgid "Duplicate Nodes"
 msgstr "노드 복제"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "노드 삭제"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "비주얼 셰�� 입력 타입 변경�"
 
@@ -8371,10 +8474,6 @@ msgid "Open documentation"
 msgstr "문서 열기"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "노드 삭제"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "�� 노드 추가"
 
@@ -10225,12 +10324,15 @@ msgstr "균�하게 배치함."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Varyings는 오� 버�스 함수�서만 지정할 수 있습니다."
 
+#~ msgid "Snap (s): "
+#~ msgstr "스냅: "
+
+#~ msgid "Insert keys."
+#~ msgstr "키 삽입."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "선�� 씬� 선�� 노드� ��으로 �스턴스 합니다."
 
-#~ msgid "FPS"
-#~ msgstr "초당 프레임"
-
 #~ msgid "Warnings:"
 #~ msgstr "경고:"
 
@@ -11708,9 +11810,6 @@ msgstr "Varyings는 오� 버�스 함수�서만 지정할 수 있습니다.
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "하위 디렉토리로 ��할 수 없습니다:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "키 삽입 (Ins 키)"
-
 #~ msgid "Top (Num7)"
 #~ msgstr "윗면 (넘버패드7)"
 
diff --git a/editor/translations/lt.po b/editor/translations/lt.po
index 27fa42d705..22fe1747e6 100644
--- a/editor/translations/lt.po
+++ b/editor/translations/lt.po
@@ -425,7 +425,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Žingsnis(iai):"
 
 #: editor/animation_track_editor.cpp
@@ -433,6 +433,14 @@ msgstr "Žingsnis(iai):"
 msgid "Animation step value."
 msgstr "Animacija"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3743,6 +3751,11 @@ msgid "Delete Node"
 msgstr "IÅ¡trinti EfektÄ…"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4715,7 +4728,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4787,6 +4824,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5137,52 +5220,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5701,7 +5747,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6524,6 +6570,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Sukurti NaujÄ…"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Keisti Poligono SkalÄ™"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Keisti Poligono SkalÄ™"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Sukurti"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6536,17 +6602,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Sukurti NaujÄ…"
+msgid "Convert to Polygon2D"
+msgstr "Keisti Poligono SkalÄ™"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Keisti Poligono SkalÄ™"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7142,6 +7229,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplikuoti"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "IÅ¡trinti EfektÄ…"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8307,10 +8399,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/lv.po b/editor/translations/lv.po
index 4c46135e35..a8acaaf300 100644
--- a/editor/translations/lv.po
+++ b/editor/translations/lv.po
@@ -424,13 +424,22 @@ msgstr ""
 "Sagrupēt celiņus atkarīb� no mezgliem vai r�dīt tos vienk�rš� sarakst�."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+#, fuzzy
+msgid "Snap:"
 msgstr "Solis (s): "
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Anim�cijas soļa vērtība."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3736,6 +3745,11 @@ msgid "Delete Node"
 msgstr "Izdzēst"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4697,10 +4711,35 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim ievietot atslēgievietni"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
 msgstr ""
 
@@ -4769,6 +4808,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5119,52 +5204,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5679,7 +5727,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6505,6 +6553,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Izveidot Jaunu %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Izveidot"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Izveidot"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Izveidot"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6517,17 +6585,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Izveidot Jaunu %s"
+msgid "Convert to Polygon2D"
+msgstr "Izveidot"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Izveidot"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7121,6 +7210,11 @@ msgid "Duplicate Nodes"
 msgstr "Dublicēt atslēgvietnes"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Izdzēst"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8274,10 +8368,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/mi.po b/editor/translations/mi.po
index bd3832641d..30d76b28d3 100644
--- a/editor/translations/mi.po
+++ b/editor/translations/mi.po
@@ -397,13 +397,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3657,6 +3665,11 @@ msgid "Delete Node"
 msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4608,7 +4621,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4679,6 +4716,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5029,52 +5112,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5578,7 +5624,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6396,6 +6442,22 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6408,15 +6470,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -6987,6 +7069,10 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8136,10 +8222,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/ml.po b/editor/translations/ml.po
index d029bdaacd..215ca3d2cc 100644
--- a/editor/translations/ml.po
+++ b/editor/translations/ml.po
@@ -405,13 +405,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3665,6 +3673,11 @@ msgid "Delete Node"
 msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4616,7 +4629,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4687,6 +4724,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5037,52 +5120,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5586,7 +5632,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6404,6 +6450,22 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6416,15 +6478,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -6995,6 +7077,10 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8144,10 +8230,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/ms.po b/editor/translations/ms.po
index 61fb10d582..f253cca02b 100644
--- a/editor/translations/ms.po
+++ b/editor/translations/ms.po
@@ -417,13 +417,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3683,6 +3691,11 @@ msgid "Delete Node"
 msgstr "Semua Pilihan"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4638,7 +4651,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4709,6 +4746,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5059,52 +5142,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5608,7 +5654,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6426,6 +6472,23 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Semua Pilihan"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6438,15 +6501,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -7024,6 +7107,11 @@ msgid "Duplicate Nodes"
 msgstr "Anim Menduakan Kunci"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Semua Pilihan"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8175,10 +8263,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/nb.po b/editor/translations/nb.po
index 405d71e43b..26bd0cc890 100644
--- a/editor/translations/nb.po
+++ b/editor/translations/nb.po
@@ -2,7 +2,7 @@
 # Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.
 # Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)
 # This file is distributed under the same license as the Godot source code.
-# Allan Nordhøy <epost@anotheragency.no>, 2017-2018.
+# Allan Nordhøy <epost@anotheragency.no>, 2017-2018, 2019.
 # Anonymous <GentleSaucepan@protonmail.com>, 2017.
 # Elias <eliasnykrem@gmail.com>, 2018.
 # flesk <eivindkn@gmail.com>, 2017, 2019.
@@ -12,12 +12,13 @@
 # Norwegian Disaster <stian.furu.overbye@gmail.com>, 2017.
 # passeride <lukas@passeride.com>, 2017.
 # Byzantin <kasper-hoel@hotmail.com>, 2018.
+# Hans-Marius Øverås <hansmariusoveras@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-02-13 16:10+0000\n"
-"Last-Translator: NicolaiF <nico-fre@hotmail.com>\n"
+"PO-Revision-Date: 2019-04-23 15:48+0000\n"
+"Last-Translator: Allan Nordhøy <epost@anotheragency.no>\n"
 "Language-Team: Norwegian Bokmål <https://hosted.weblate.org/projects/godot-"
 "engine/godot/nb_NO/>\n"
 "Language: nb\n"
@@ -25,7 +26,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 3.5-dev\n"
+"X-Generator: Weblate 3.7-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -39,9 +40,8 @@ msgid "Not enough bytes for decoding bytes, or invalid format."
 msgstr "Ikke nok byte til dekodingsbyte, eller ugyldig format."
 
 #: core/math/expression.cpp
-#, fuzzy
 msgid "Invalid input %i (not passed) in expression"
-msgstr "Ikke gyldig inndata %i (ikke bestått) i utrykket"
+msgstr "Ugyldig inndata %i (ikke bestått) i utrykket"
 
 #: core/math/expression.cpp
 msgid "self can't be used because instance is null (not passed)"
@@ -467,7 +467,7 @@ msgstr "Grupper spor etter node eller vis dem i en enkel liste."
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Steg:"
 
 #: editor/animation_track_editor.cpp
@@ -475,6 +475,14 @@ msgstr "Steg:"
 msgid "Animation step value."
 msgstr "Animasjonstre er gyldig."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -4001,6 +4009,11 @@ msgid "Delete Node"
 msgstr "Kutt Noder"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Vis/skjul distraksjonsfri modus."
@@ -5015,9 +5028,34 @@ msgid "Layout"
 msgstr "Layout"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Sett inn Nøkler"
+msgid "Insert keys (based on mask)."
+msgstr "Sett inn Nøkkel (Eksisterende Spor)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim Sett Inn Nøkkel"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -5091,6 +5129,52 @@ msgstr "Rediger Poly (Fjern Punkt)"
 msgid "Set Handle"
 msgstr "Sett Handle"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Feil ved innlasting av bilde:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Ingen piksler med gjennomsiktighet > 128 i bilde..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partikler"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5446,22 +5530,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Feil ved innlasting av bilde:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Ingen piksler med gjennomsiktighet > 128 i bilde..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5469,30 +5537,9 @@ msgstr "Konverter til store versaler"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partikler"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -6038,7 +6085,8 @@ msgid "Save Theme As..."
 msgstr "Lagre Tema Som..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Klassereferanse"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6887,6 +6935,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Lag ny %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Lag Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Lag Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Lag mappe"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6899,18 +6967,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Konverter til store versaler"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Lag ny %s"
+msgid "Convert to Polygon2D"
+msgstr "Flytt Polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Lag Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7532,6 +7621,11 @@ msgid "Duplicate Nodes"
 msgstr "Anim Dupliser Nøkler"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Kutt Noder"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8239,7 +8333,7 @@ msgstr ""
 
 #: editor/project_settings_editor.cpp editor/settings_config_dialog.cpp
 msgid "General"
-msgstr ""
+msgstr "Generelt"
 
 #: editor/project_settings_editor.cpp
 msgid "Override For..."
@@ -8727,10 +8821,6 @@ msgid "Open documentation"
 msgstr "Ã…pne Godots nettbaserte dokumentasjon"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10528,6 +10618,10 @@ msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
 #, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Sett inn Nøkler"
+
+#, fuzzy
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Instanser den valgte scene(r) som barn av den valgte noden."
 
diff --git a/editor/translations/nl.po b/editor/translations/nl.po
index c0e046dc9b..6eb5a47d21 100644
--- a/editor/translations/nl.po
+++ b/editor/translations/nl.po
@@ -31,12 +31,13 @@
 # Stijn Hinlopen <f.a.hinlopen@gmail.com>, 2019.
 # jef dered <themen098s@vivaldi.net>, 2019.
 # Alex H. <sandertjeh13@hotmail.com>, 2019.
+# edouardgr <edouard.gruyters@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-28 09:36+0000\n"
-"Last-Translator: Alex H. <sandertjeh13@hotmail.com>\n"
+"PO-Revision-Date: 2019-04-25 11:54+0000\n"
+"Last-Translator: edouardgr <edouard.gruyters@gmail.com>\n"
 "Language-Team: Dutch <https://hosted.weblate.org/projects/godot-engine/godot/"
 "nl/>\n"
 "Language: nl\n"
@@ -44,7 +45,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 3.6-dev\n"
+"X-Generator: Weblate 3.7-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -450,13 +451,21 @@ msgstr "Sporen weergeven op basis van nodes of als lijst."
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "Stap(pen):"
+msgid "Snap:"
+msgstr "Snap"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Animatie stap waarde."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3895,6 +3904,12 @@ msgid "Delete Node"
 msgstr "Alles Selecteren"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+#, fuzzy
+msgid "Delete Node(s)"
+msgstr "Verwijder knooppunt(en)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Aan-uitschakelaar Track."
@@ -4887,9 +4902,34 @@ msgid "Layout"
 msgstr "Indeling"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Voer Sleutels In"
+msgid "Insert keys (based on mask)."
+msgstr "Voeg Sleutel in (Bestaande Banen)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim Key Invoegen"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4962,6 +5002,52 @@ msgstr "Bewerk Poly (Verwijder punt)"
 msgid "Set Handle"
 msgstr "Stel Handgreep In"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Error bij het laden van afbeelding:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Geen pixels met transparantie > 128 in afbeelding..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Laad Emissie Masker"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Leeg Emissie Masker"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partikels"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Telling Gegenereerde Punten:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Emissie Masker"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Neem uit Pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Kleuren Emissie"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5324,22 +5410,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Kan punt alleen plaatsen in een PartikelsMateriaal proces materiaal"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Error bij het laden van afbeelding:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Geen pixels met transparantie > 128 in afbeelding..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Laad Emissie Masker"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Leeg Emissie Masker"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5347,30 +5417,9 @@ msgstr "Converteer Naar Hoofdletters"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partikels"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Telling Gegenereerde Punten:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Genereer Tijd (sec):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Emissie Masker"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Neem uit Pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Kleuren Emissie"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Vlakken bevatten geen gebied!"
@@ -5916,7 +5965,8 @@ msgid "Save Theme As..."
 msgstr "Thema Opslaan Als..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Klasse Referentie"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6774,6 +6824,26 @@ msgstr "Naamloos apparaat"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Creëer Omlijning Mesh"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Creëer Poly"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Creëer Navigatie Polygoon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Creëer Occluder Polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Mesh is leeg!"
 
@@ -6787,18 +6857,43 @@ msgstr "Ongeldige geometrie, kan niet worden vervangen door Mesh."
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Ongeldige geometrie, kan niet worden vervangen door Mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Ongeldige geometrie, kan niet worden vervangen door Mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Ongeldige geometrie, kan niet worden vervangen door Mesh."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite"
 msgstr "Sprite-Frames"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Verbind Aan Node:"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Creëer Omlijning Mesh"
+msgid "Convert to Polygon2D"
+msgstr "Beweeg Polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Creëer Navigatie Polygoon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Creëer Occluder Polygon"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7417,6 +7512,11 @@ msgid "Duplicate Nodes"
 msgstr "Dupliceer Graaf Knooppunt(en)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Alles Selecteren"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Visuele Shader Invoertype Gewijzigd"
 
@@ -8534,7 +8634,7 @@ msgstr ""
 
 #: editor/scene_tree_dock.cpp
 msgid "Instance Scene(s)"
-msgstr ""
+msgstr "Instantie Scene(s)"
 
 #: editor/scene_tree_dock.cpp
 msgid "Instance Child Scene"
@@ -8542,7 +8642,7 @@ msgstr ""
 
 #: editor/scene_tree_dock.cpp
 msgid "Clear Script"
-msgstr ""
+msgstr "Script vrijmaken"
 
 #: editor/scene_tree_dock.cpp
 msgid "This operation can't be done on the tree root."
@@ -8579,7 +8679,7 @@ msgstr "Klinkt logisch!"
 
 #: editor/scene_tree_dock.cpp
 msgid "Delete Node(s)?"
-msgstr ""
+msgstr "Verwijder knooppunt(en)?"
 
 #: editor/scene_tree_dock.cpp
 msgid "Can not perform with the root node."
@@ -8664,8 +8764,9 @@ msgid ""
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
+#, fuzzy
 msgid "Error saving scene."
-msgstr ""
+msgstr "Fout scene opslaan."
 
 #: editor/scene_tree_dock.cpp
 msgid "Error duplicating scene to save it."
@@ -8686,16 +8787,13 @@ msgid "Open documentation"
 msgstr "Open Godot online documentatie"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
+#, fuzzy
 msgid "Change Type"
-msgstr ""
+msgstr "Verander Type"
 
 #: editor/scene_tree_dock.cpp
 #, fuzzy
@@ -8721,12 +8819,13 @@ msgid "Copy Node Path"
 msgstr "Kopiëer Nodes"
 
 #: editor/scene_tree_dock.cpp
+#, fuzzy
 msgid "Delete (No Confirm)"
-msgstr ""
+msgstr "Verwijder (Geen bevestiging)"
 
 #: editor/scene_tree_dock.cpp
 msgid "Add/Create a New Node"
-msgstr ""
+msgstr "Voeg nieuwe knooppunt aan"
 
 #: editor/scene_tree_dock.cpp
 msgid ""
@@ -8740,7 +8839,7 @@ msgstr ""
 
 #: editor/scene_tree_dock.cpp
 msgid "Clear a script for the selected node."
-msgstr ""
+msgstr "Verwijder script van selecteerde knooppunt."
 
 #: editor/scene_tree_dock.cpp
 #, fuzzy
@@ -8748,8 +8847,9 @@ msgid "Remote"
 msgstr "Verwijderen"
 
 #: editor/scene_tree_dock.cpp
+#, fuzzy
 msgid "Local"
-msgstr ""
+msgstr "Lokaal"
 
 #: editor/scene_tree_dock.cpp
 msgid "Clear Inheritance? (No Undo!)"
@@ -8761,8 +8861,9 @@ msgid "Toggle Visible"
 msgstr "Toggle Verborgen Bestanden"
 
 #: editor/scene_tree_editor.cpp
+#, fuzzy
 msgid "Node configuration warning:"
-msgstr ""
+msgstr "Knooppunt configuratie waarschuwing:"
 
 #: editor/scene_tree_editor.cpp
 msgid ""
@@ -10563,14 +10664,19 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "Stap(pen):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Voer Sleutels In"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Maak een nieuwe kopie van de geselecteerde scene(s) als kind van de "
 #~ "geselecteerde knoop."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Waarschuwingen:"
 
diff --git a/editor/translations/pl.po b/editor/translations/pl.po
index a2e25fba35..7923ebe539 100644
--- a/editor/translations/pl.po
+++ b/editor/translations/pl.po
@@ -32,11 +32,12 @@
 # Sebastian Hojka <sibibibi1@gmail.com>, 2019.
 # Robert <vizz0@onet.pl>, 2019.
 # Michał Topa <moonchasered@gmail.com>, 2019.
+# Przemysław Pierzga <przemyslawpierzga@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-28 09:36+0000\n"
+"PO-Revision-Date: 2019-04-25 11:54+0000\n"
 "Last-Translator: Tomek <kobewi4e@gmail.com>\n"
 "Language-Team: Polish <https://hosted.weblate.org/projects/godot-engine/"
 "godot/pl/>\n"
@@ -46,7 +47,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 "
 "|| n%100>=20) ? 1 : 2;\n"
-"X-Generator: Weblate 3.6-dev\n"
+"X-Generator: Weblate 3.7-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -444,13 +445,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Grupuj ścieżki po węzłach lub wyświetl je jako prostą listę."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "PrzyciÄ…ganie (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "PrzyciÄ…gaj"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Wartość kroku animacji."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "Klatki na sekundÄ™"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -2296,7 +2306,7 @@ msgstr "Konwertuj na..."
 
 #: editor/editor_node.cpp
 msgid "MeshLibrary..."
-msgstr "MeshLibrary..."
+msgstr "Biblioteka Meshów..."
 
 #: editor/editor_node.cpp
 msgid "TileSet..."
@@ -3828,6 +3838,11 @@ msgid "Delete Node"
 msgstr "Usuń węzeł"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Usuń węzeł (węzły)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Przełącz filtrowanie"
 
@@ -4806,8 +4821,34 @@ msgid "Layout"
 msgstr "Układ"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Wstaw klucze."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Wstaw klucz (istniejące ścieżki)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Wstaw klatkÄ™ kluczowÄ…"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4860,7 +4901,7 @@ msgid ""
 "Drag & drop + Shift : Add node as sibling\n"
 "Drag & drop + Alt : Change node type"
 msgstr ""
-"Przeciągnij i upuść + Shift: dodaj węzeł równorzędny\n"
+"Przeciągnij i upuść + Shift: Dodaj węzeł równorzędny\n"
 "Przeciągnij i upuść + Alt: Zmień typ węzła"
 
 #: editor/plugins/collision_polygon_editor_plugin.cpp
@@ -4879,6 +4920,52 @@ msgstr "Edytuj wielokąt (usuń punkty)"
 msgid "Set Handle"
 msgstr "Ustaw Uchwyt"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "BÅ‚Ä…d wczytywania obrazu:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Brak pikseli z przeźroczystością > 128 w obrazie..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Wczytaj maskÄ™ emisji"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Usuń maskę emisji"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "CzÄ…steczki"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Wygeneruj chmurę punktów:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Maska emisji"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Przechwytywanie z piksela"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Kolor emisji"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CzÄ…steczki CPU"
@@ -5229,52 +5316,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Punkt można wstawić tylko w materiał przetwarzania ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "BÅ‚Ä…d wczytywania obrazu:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Brak pikseli z przeźroczystością > 128 w obrazie..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Wczytaj maskÄ™ emisji"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Usuń maskę emisji"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Przekonwertuj na czÄ…steczki CPU"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "CzÄ…steczki"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Wygeneruj chmurę punktów:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Czas generowania (sek):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Maska emisji"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Przechwytywanie z piksela"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Kolor emisji"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Åšciana nie ma powierzchni!"
@@ -5784,7 +5834,8 @@ msgid "Save Theme As..."
 msgstr "Zapisz motyw jako..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " - referencja klasy"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5916,11 +5967,11 @@ msgstr "Otwórz dokumentację online"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "PoproÅ› o dokumentacjÄ™"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Pomóż polepszyć dokumentację Godota przesyłając opinię"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6034,7 +6085,7 @@ msgstr "Wcięcie w prawo"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Toggle Comment"
-msgstr "Ustaw komentarz"
+msgstr "Przełącz komentarz"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Fold/Unfold Line"
@@ -6609,6 +6660,26 @@ msgid "Nameless gizmo"
 msgstr "Uchwyt bez nazwy"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Utwórz siatkę 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Utwórz Wielokąt3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Utwórz wielokąt kolizji"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Stwórz Occluder Polygon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite jest pusty!"
 
@@ -6622,16 +6693,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Nieprawidłowa geometria, nie można zastąpić przez siatkę."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Nieprawidłowa geometria, nie można zastąpić przez siatkę."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Nieprawidłowa geometria, nie można zastąpić przez siatkę."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Nieprawidłowa geometria, nie można zastąpić przez siatkę."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Konwertuj do siatki 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Utwórz siatkę 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Przesuń Wielokąt"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Utwórz wielokąt kolizji"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Stwórz Occluder Polygon"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7216,12 +7314,17 @@ msgid "Duplicate Nodes"
 msgstr "Duplikuj węzły"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Usuń węzeł"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Typ wejścia shadera wizualnego zmieniony"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Vertex"
-msgstr "Wierzchołek"
+msgstr "Wierzchołki"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Fragment"
@@ -8432,10 +8535,6 @@ msgid "Open documentation"
 msgstr "Otwórz dokumentację"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Usuń węzeł (węzły)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Dodaj węzeł"
 
@@ -10309,12 +10408,15 @@ msgstr "Przypisanie do uniformu."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Varying może być przypisane tylko w funkcji wierzchołków."
 
+#~ msgid "Snap (s): "
+#~ msgstr "PrzyciÄ…ganie (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Wstaw klucze."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Utwórz instancję wybranej sceny/scen jako dziecko wybranego węzła."
 
-#~ msgid "FPS"
-#~ msgstr "Klatki na sekundÄ™"
-
 #~ msgid "Warnings:"
 #~ msgstr "Ostrzeżenia:"
 
diff --git a/editor/translations/pr.po b/editor/translations/pr.po
index dea945f474..0aa4cbbca8 100644
--- a/editor/translations/pr.po
+++ b/editor/translations/pr.po
@@ -428,13 +428,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3763,6 +3771,11 @@ msgid "Delete Node"
 msgstr "Slit th' Node"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4729,7 +4742,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4801,6 +4838,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5154,52 +5237,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5719,7 +5765,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6551,6 +6597,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Yar, Blow th' Selected Down!"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Yar, Blow th' Selected Down!"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Yar, Blow th' Selected Down!"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Yar, Blow th' Selected Down!"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6563,15 +6629,37 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Discharge ye' Function"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Yar, Blow th' Selected Down!"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -7177,6 +7265,11 @@ msgid "Duplicate Nodes"
 msgstr "Rename Variable"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Slit th' Node"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8342,10 +8435,6 @@ msgid "Open documentation"
 msgstr "Yer functions:"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/pt_BR.po b/editor/translations/pt_BR.po
index f546b8928f..9dc52df2be 100644
--- a/editor/translations/pt_BR.po
+++ b/editor/translations/pt_BR.po
@@ -55,12 +55,15 @@
 # Dimenicius <vinicius.costa.92@gmail.com>, 2019.
 # Davi <wokep.ma.wavid@gmail.com>, 2019.
 # Endrick Gustavo <endrickgb@hotmail.com>, 2019.
+# Hans M. Boron <hansmateusboron@gmail.com>, 2019.
+# Gustavo Bolanho <jdmapas@gmail.com>, 2019.
+# Nilton Bendini Junior <almascelulas@bol.com.br>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: 2016-05-30\n"
-"PO-Revision-Date: 2019-03-28 09:36+0000\n"
-"Last-Translator: Endrick Gustavo <endrickgb@hotmail.com>\n"
+"PO-Revision-Date: 2019-04-19 16:33+0000\n"
+"Last-Translator: Nilton Bendini Junior <almascelulas@bol.com.br>\n"
 "Language-Team: Portuguese (Brazil) <https://hosted.weblate.org/projects/"
 "godot-engine/godot/pt_BR/>\n"
 "Language: pt_BR\n"
@@ -257,9 +260,8 @@ msgid "Time (s): "
 msgstr "Tempo (s): "
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Toggle Track Enabled"
-msgstr "Habilitar Doppler"
+msgstr "Alternar Trilha Ativado"
 
 #: editor/animation_track_editor.cpp
 msgid "Continuous"
@@ -313,7 +315,7 @@ msgstr "Deletar Chave(s)"
 
 #: editor/animation_track_editor.cpp
 msgid "Change Animation Update Mode"
-msgstr "Alterar Modo de Atualização da Animação:"
+msgstr "Alterar Modo de Atualização da Animação"
 
 #: editor/animation_track_editor.cpp
 msgid "Change Animation Interpolation Mode"
@@ -365,14 +367,12 @@ msgid "Anim Insert Key"
 msgstr "Inserir Chave na Anim"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Animation Step"
 msgstr "Alterar FPS da Animação"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Rearrange Tracks"
-msgstr "Reordenar Autoloads"
+msgstr "Reordenar Trilhas"
 
 #: editor/animation_track_editor.cpp
 msgid "Transform tracks only apply to Spatial-based nodes."
@@ -405,9 +405,8 @@ msgid "Not possible to add a new track without a root"
 msgstr "Não é possível adicionar uma nova trilha sem uma raiz"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Bezier Track"
-msgstr "Adicionar Trilha"
+msgstr "Adicionar Trilha Bezier"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a key."
@@ -418,14 +417,12 @@ msgid "Track is not of type Spatial, can't insert key"
 msgstr "Trilha não é do tipo Espacial,não pode inserir chave"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Transform Track Key"
-msgstr "Trilha de transformação 3D"
+msgstr "Adicionar Chave de Transformação de Trilha"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Track Key"
-msgstr "Adicionar Trilha"
+msgstr "Adicionar Trilha Chave"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a method key."
@@ -433,9 +430,8 @@ msgstr ""
 "Caminho da trilha é inválido,então não pode adicionar uma chave de método."
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Method Track Key"
-msgstr "Trilha de método de chamada"
+msgstr "Adiciona Método de Trilha Chave"
 
 #: editor/animation_track_editor.cpp
 msgid "Method not found in object: "
@@ -472,13 +468,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Agrupe as trilhas pelo nó ou exiba-as como lista simples."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Snap (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Snap"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valor do passo de animação."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -597,17 +602,16 @@ msgid "Copy"
 msgstr "Copiar"
 
 #: editor/animation_track_editor_plugins.cpp
-#, fuzzy
 msgid "Add Audio Track Clip"
-msgstr "Clipes de �udio:"
+msgstr "Adiciona Clipe de Trilha de �udio"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip Start Offset"
-msgstr ""
+msgstr "Alterar Deslocamento do Início de Clipe da Trilha de �udio"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip End Offset"
-msgstr ""
+msgstr "Alterar deslocamento de fim do clipe de faixa de áudio"
 
 #: editor/array_property_edit.cpp
 msgid "Resize Array"
@@ -1239,7 +1243,7 @@ msgstr "Adicionar Canal"
 
 #: editor/editor_audio_buses.cpp
 msgid "Add a new Audio Bus to this layout."
-msgstr "Adiciona um novo Canal de �udio a esse layout."
+msgstr "Adicionar novo Canal de �udio a esse layout."
 
 #: editor/editor_audio_buses.cpp editor/editor_properties.cpp
 #: editor/plugins/animation_player_editor_plugin.cpp editor/property_editor.cpp
@@ -1430,6 +1434,8 @@ msgid ""
 "Target platform requires 'ETC2' texture compression for GLES3. Enable "
 "'Import Etc 2' in Project Settings."
 msgstr ""
+"A plataforma de destino requer compactação de textura 'ETC2' para GLES3. "
+"Ativar 'Importar Etc 2' nas Configurações do Projeto."
 
 #: editor/editor_export.cpp
 msgid ""
@@ -1438,6 +1444,10 @@ msgid ""
 "Enable 'Import Etc' in Project Settings, or disable 'Driver Fallback "
 "Enabled'."
 msgstr ""
+"A plataforma de destino requer compactação de textura 'ETC' para o driver "
+"retornar ao GLES2.\n"
+"Ativar 'Importar Etc' em Configurações do Projeto ou desabilitar 'Driver "
+"Fallback Enabled' (Recuperação de driver ativada)."
 
 #: editor/editor_export.cpp platform/android/export/export.cpp
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
@@ -1560,23 +1570,20 @@ msgid "Move Favorite Down"
 msgstr "Mover Favorito Abaixo"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Previous Folder"
-msgstr "Chão Anterior"
+msgstr "Pasta Anterior"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Next Folder"
-msgstr "Próximo Chão"
+msgstr "Próxima Pasta"
 
 #: editor/editor_file_dialog.cpp
 msgid "Go to parent folder"
 msgstr "Ir para pasta pai"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "(Un)favorite current folder."
-msgstr "Não foi possível criar a pasta."
+msgstr "(Des)favoritar pasta atual."
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
 msgid "View items as a grid of thumbnails."
@@ -1809,9 +1816,8 @@ msgid "Project export failed with error code %d."
 msgstr "Falha na exportação do projeto com código de erro %d."
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Imported resources can't be saved."
-msgstr "Recursos Importados"
+msgstr "Recursos Importados não podem ser salvos."
 
 #: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
 #: scene/gui/dialogs.cpp
@@ -3687,18 +3693,16 @@ msgstr "Carregar..."
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Move Node Point"
-msgstr "Mover pontos"
+msgstr "Mover o ponto do nó"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Change BlendSpace1D Limits"
 msgstr "Alterar limites do BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace1D Labels"
-msgstr "Alterar Tempo de Mistura"
+msgstr "Alterar rótulos BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3709,24 +3713,21 @@ msgstr ""
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Node Point"
-msgstr "Adicionar Nó"
+msgstr "Adicionar ponto de Nó"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Animation Point"
-msgstr "Adicionar Animação"
+msgstr "Adicionar ponto de Animação"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace1D Point"
-msgstr "Remover Ponto do Caminho"
+msgstr "Remover Ponto BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Move BlendSpace1D Node Point"
-msgstr ""
+msgstr "Mover ponto de nó BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3772,29 +3773,24 @@ msgid "Triangle already exists"
 msgstr "Triângulo já existe"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Triangle"
-msgstr "Adicionar Variável"
+msgstr "Adicionar Triângulo"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace2D Limits"
-msgstr "Alterar Tempo de Mistura"
+msgstr "Alterar limites de BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace2D Labels"
-msgstr "Alterar Tempo de Mistura"
+msgstr "Alterar rótulos de BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace2D Point"
-msgstr "Remover Ponto do Caminho"
+msgstr "Remover Ponto do BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace2D Triangle"
-msgstr "Remover Variável"
+msgstr "Remover Triangulo do BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "BlendSpace2D does not belong to an AnimationTree node."
@@ -3805,9 +3801,8 @@ msgid "No triangles exist, so no blending can take place."
 msgstr "Não existem triângulos, então nenhuma mistura pode acontecer."
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Toggle Auto Triangles"
-msgstr "Alternar Auto Carregamentos de Globais"
+msgstr "Alternar Triângulos Automáticos"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Create triangles by connecting points."
@@ -3840,9 +3835,8 @@ msgid "Output node can't be added to the blend tree."
 msgstr "Nós de saída não pode ser adicionado à árvore de mistura."
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Add Node to BlendTree"
-msgstr "Adicionar Nó(s) a Partir da �rvore"
+msgstr "Adicionar Nó(s) a Partir da �rvore (BlendTree)"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3866,9 +3860,8 @@ msgid "Nodes Disconnected"
 msgstr "Nós Desconectados"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Set Animation"
-msgstr "Nova animação"
+msgstr "Definir Animação"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3876,14 +3869,17 @@ msgid "Delete Node"
 msgstr "Excluir Nó"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Excluir Nó(s)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
-msgstr "Ligar/desligar esta trilha."
+msgstr "Ligar/Desligar Filtro"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Change Filter"
-msgstr "FIltro de Idiomas Alterado"
+msgstr "Alterar Filtro"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "No animation player set, so unable to retrieve track names."
@@ -3908,9 +3904,8 @@ msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Node Renamed"
-msgstr "Nome do nó"
+msgstr "Nó Renomeado"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3924,7 +3919,7 @@ msgstr "Editar trilhas filtradas:"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Enable filtering"
-msgstr "Filhos editáveis"
+msgstr "Habilitar filtragem"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Toggle Autoplay"
@@ -4141,14 +4136,12 @@ msgid "Cross-Animation Blend Times"
 msgstr "Tempos de Mistura de Animação Cruzada"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Move Node"
-msgstr "Modo Mover"
+msgstr "Mover Nó"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Add Transition"
-msgstr "Adicionar Tradução"
+msgstr "Adicionar Transição"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #: modules/visual_script/visual_script_editor.cpp
@@ -4184,9 +4177,8 @@ msgid "No playback resource set at path: %s."
 msgstr "Sem recurso de playback definido no caminho: %s."
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Node Removed"
-msgstr "Removido:"
+msgstr "Nó Removido"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Transition Removed"
@@ -4629,7 +4621,8 @@ msgid ""
 "Children of containers have their anchors and margins values overridden by "
 "their parent."
 msgstr ""
-"Filhos de contêineres tem sua âncora e margens sobrescritos pelos seus pais."
+"Filhos de contêineres tem suas ancoragens e valores de margem sobrescritos "
+"pelos seus pais."
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Anchors only"
@@ -4862,8 +4855,34 @@ msgid "Layout"
 msgstr "Layout"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Inserir chaves."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Inserir Chaves (Ins)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Inserir Chave na Anim"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4935,6 +4954,52 @@ msgstr "Editar Polígono (Remover Ponto)"
 msgid "Set Handle"
 msgstr "Definir Manipulador"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Erro ao carregar imagem:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Nenhum pixel com transparência > 128  na imagem."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Carregar Máscara de Emissão"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Limpar Máscara de Emissão"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partículas"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Gerar Contagem de Pontos:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Máscara de Emissão"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Capturar a partir do Pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Cores de Emissão"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "Particulas CPU"
@@ -5288,52 +5353,15 @@ msgstr ""
 "Só é permitido colocar um ponto em um material processador ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Erro ao carregar imagem:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Nenhum pixel com transparência > 128  na imagem."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Carregar Máscara de Emissão"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Limpar Máscara de Emissão"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Converter para Particulas CPU"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partículas"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Gerar Contagem de Pontos:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Gerando Tempo (seg):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Máscara de Emissão"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Capturar a partir do Pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Cores de Emissão"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "As faces não têm área!"
@@ -5845,7 +5873,8 @@ msgid "Save Theme As..."
 msgstr "Salvar Tema Como..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Referência de Classes"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5977,11 +6006,11 @@ msgstr "Abrir a documentação online da Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Solicitar documentos"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Ajude a melhorar a documentação do Godot dando seu feedback"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6179,14 +6208,12 @@ msgid "This skeleton has no bones, create some children Bone2D nodes."
 msgstr "Este esqueleto não tem ossos, crie alguns nós filhos Bone2D."
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
-#, fuzzy
 msgid "Create Rest Pose from Bones"
-msgstr "Faça Resto Pose (De Ossos)"
+msgstr "Criar postura de descanso para os Ossos"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
-#, fuzzy
 msgid "Set Rest Pose to Bones"
-msgstr "Faça Resto Pose (De Ossos)"
+msgstr "Definir a postura de repouso para os Ossos"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Skeleton2D"
@@ -6341,9 +6368,8 @@ msgid "Rear"
 msgstr "Traseira"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Align with View"
-msgstr "Alinhar com Visão"
+msgstr "Alinhar com a Vista"
 
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "No parent to instance a child at."
@@ -6450,9 +6476,8 @@ msgid "XForm Dialog"
 msgstr "Diálogo XForm"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Snap Nodes To Floor"
-msgstr "Encaixar na grade"
+msgstr "Encaixar Nó(s) no Chão"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Select Mode (Q)"
@@ -6674,6 +6699,26 @@ msgid "Nameless gizmo"
 msgstr "Coisa sem nome"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Crie uma malha 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Criar Polígono3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Criar polígono de colisão"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Criar Polígono de Oclusão"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite está vazio!"
 
@@ -6687,16 +6732,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Geometria inválida, não é possível substituir por malha."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Geometria inválida, não é possível substituir por malha."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Geometria inválida, não é possível substituir por malha."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Geometria inválida, não é possível substituir por malha."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Converter para malha 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Crie uma malha 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Mover Polígono"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Criar polígono de colisão"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Criar Polígono de Oclusão"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7048,13 +7120,12 @@ msgid "Merge from Scene"
 msgstr "Fundir a partir de Cena"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Next Coordinate"
-msgstr "Próximo Chão"
+msgstr "Próxima Coordenada"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the next shape, subtile, or Tile."
-msgstr ""
+msgstr "Selecione a próxima forma, subtile ou Tile."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Previous Coordinate"
@@ -7062,7 +7133,7 @@ msgstr "Coordenada Anterior"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the previous shape, subtile, or Tile."
-msgstr ""
+msgstr "Selecione a forma, subtile ou tile anterior."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Copy bitmask."
@@ -7266,26 +7337,28 @@ msgstr "Conjunto de Telha"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Set Uniform Name"
-msgstr ""
+msgstr "Definir Nome Uniforme"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Set Input Default Port"
-msgstr "Definir como Padrão para '%s'"
+msgstr "Definir Porta Padrão de Entrada"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Add Node to Visual Shader"
-msgstr "VisualShader"
+msgstr "Adicionar Nó ao Visual Shader"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Duplicate Nodes"
 msgstr "Duplicar Nó(s)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Excluir Nó"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
-msgstr ""
+msgstr "Tipo de Entrada de Shader Visual Alterado"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Vertex"
@@ -7304,14 +7377,12 @@ msgid "VisualShader"
 msgstr "VisualShader"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Edit Visual Property"
-msgstr "Editar prioridade da telha"
+msgstr "Editar Propriedade Visual"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Visual Shader Mode Changed"
-msgstr "Alterações de Shader"
+msgstr "Modo Visual Shader Alterado"
 
 #: editor/project_export.cpp
 msgid "Runnable"
@@ -7330,9 +7401,10 @@ msgid ""
 "Failed to export the project for platform '%s'.\n"
 "Export templates seem to be missing or invalid."
 msgstr ""
+"Falha ao exportar o projeto para a plataforma '% s'.\n"
+"Os modelos de exportação parecem estar ausentes ou inválidos."
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid ""
 "Failed to export the project for platform '%s'.\n"
 "This might be due to a configuration issue in the export preset or your "
@@ -7352,7 +7424,7 @@ msgstr "Exportando tudo"
 
 #: editor/project_export.cpp
 msgid "The given export path doesn't exist:"
-msgstr "O caminho de exportação informado não existe."
+msgstr "O caminho de exportação informado não existe:"
 
 #: editor/project_export.cpp
 msgid "Export templates for this platform are missing/corrupted:"
@@ -8503,10 +8575,6 @@ msgid "Open documentation"
 msgstr "Abrir a documentação"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Excluir Nó(s)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Adicionar Nó Filho"
 
@@ -9681,7 +9749,7 @@ msgstr "Identificador está ausente."
 
 #: platform/iphone/export/export.cpp
 msgid "Identifier segments must be of non-zero length."
-msgstr "Os segmentos de identificador devem ter comprimento diferente de zero."
+msgstr "Segmentos identificadores devem ter comprimento diferente de zero."
 
 #: platform/iphone/export/export.cpp
 msgid "The character '%s' is not allowed in Identifier."
@@ -10100,6 +10168,8 @@ msgid ""
 "GIProbes are not supported by the GLES2 video driver.\n"
 "Use a BakedLightmap instead."
 msgstr ""
+"GIProbes não são suportados pelo driver de vídeo GLES2.\n"
+"Use um BakedLightmap em vez disso."
 
 #: scene/3d/navigation_mesh.cpp
 msgid "A NavigationMesh resource must be set or created for this node to work."
@@ -10280,6 +10350,10 @@ msgid ""
 "If you dont't intend to add a script, then please use a plain 'Control' node "
 "instead."
 msgstr ""
+"O contêiner por si só não serve para nada, a menos que um script configure "
+"seu comportamento de posicionamento de filhos.\n"
+"Se você não pretende adicionar um script, por favor use um nó simples "
+"'Control'."
 
 #: scene/gui/dialogs.cpp
 msgid "Alert!"
@@ -10291,7 +10365,7 @@ msgstr "Confirme Por Favor..."
 
 #: scene/gui/file_dialog.cpp
 msgid "Go to parent folder."
-msgstr "Ir para diretório pai"
+msgstr "Ir para diretório (pasta) pai."
 
 #: scene/gui/popup.cpp
 msgid ""
@@ -10377,12 +10451,15 @@ msgstr "Atribuição à uniforme."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Variáveis só podem ser atribuídas na função de vértice."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Snap (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Inserir chaves."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Instanciar a(s) cena(s) selecionada como filho do nó selecionado."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Avisos:"
 
@@ -11900,9 +11977,6 @@ msgstr "Variáveis só podem ser atribuídas na função de vértice."
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "Não é possível ir ao subdiretório:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "Inserir Chaves (Ins)"
-
 #~ msgid "Top (Num7)"
 #~ msgstr "Cima (Num7)"
 
diff --git a/editor/translations/pt_PT.po b/editor/translations/pt_PT.po
index 2eabc658ba..f9e93885d9 100644
--- a/editor/translations/pt_PT.po
+++ b/editor/translations/pt_PT.po
@@ -18,7 +18,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-19 15:04+0000\n"
+"PO-Revision-Date: 2019-03-30 20:04+0000\n"
 "Last-Translator: João Lopes <linux-man@hotmail.com>\n"
 "Language-Team: Portuguese (Portugal) <https://hosted.weblate.org/projects/"
 "godot-engine/godot/pt_PT/>\n"
@@ -427,13 +427,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Agrupar faixas por nó ou exibi-las como lista simples."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Ajuste (s): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Ajustar"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Valor passo da Animação."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3816,6 +3825,11 @@ msgid "Delete Node"
 msgstr "Apagar Nó"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Apagar Nó(s)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Alternar Filtro On/Off"
 
@@ -4789,8 +4803,34 @@ msgid "Layout"
 msgstr "Esquema"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "Inserir chaves."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Inserir Chave (Pistas existentes)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim Inserir Chave"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4862,6 +4902,52 @@ msgstr "Editar Poly (Remover Ponto)"
 msgid "Set Handle"
 msgstr "Definir Manipulador"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Erro ao carregar imagem:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Sem pixeis com transparência > 128 na imagem..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Carregar máscara de emissão"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Limpar máscara de emissão"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Partículas"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Contagem de Pontos gerados:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Máscara de emissão"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Capturar a partir do pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Cores de emissão"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5212,52 +5298,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Só pode definir um Ponto num Material ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Erro ao carregar imagem:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Sem pixeis com transparência > 128 na imagem..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Carregar máscara de emissão"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Limpar máscara de emissão"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Converter em CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Partículas"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Contagem de Pontos gerados:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Tempo de geração (s):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Máscara de emissão"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Capturar a partir do pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Cores de emissão"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "As faces não contêm �rea!"
@@ -5767,7 +5816,8 @@ msgid "Save Theme As..."
 msgstr "Guardar tema como..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Referência de classe"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5899,11 +5949,11 @@ msgstr "Abrir documentação online do Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Requisitar Docs"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Dê a sua opinião para ajudar a melhorar a documentação Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6592,6 +6642,26 @@ msgid "Nameless gizmo"
 msgstr "Bugiganga sem Nome"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Criar Malha 2D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Criar Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Criar Polígono de Colisão"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Criar Polígono oclusor"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite está vazia!"
 
@@ -6604,16 +6674,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "Geometria inválida, não substituível por malha."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "Geometria inválida, não substituível por malha."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "Geometria inválida, não substituível por malha."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "Geometria inválida, não substituível por malha."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Converter para Malha 2D"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Criar Malha 2D"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Mover Polígono"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Criar Polígono de Colisão"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Criar Polígono oclusor"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7198,6 +7295,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplicar Nós"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Apagar Nó"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Alterado Tipo de Entrada do Visual Shader"
 
@@ -8414,10 +8516,6 @@ msgid "Open documentation"
 msgstr "Abrir documentação"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Apagar Nó(s)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Adicionar Nó filho"
 
@@ -10296,13 +10394,16 @@ msgstr "Atribuição a uniforme."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Variações só podem ser atribuídas na função vértice."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Ajuste (s): "
+
+#~ msgid "Insert keys."
+#~ msgstr "Inserir chaves."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr ""
 #~ "Instancie a(s) Cena(s) selecionada(s) como filha(s) do Nó selecionado."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Avisos:"
 
diff --git a/editor/translations/ro.po b/editor/translations/ro.po
index 807d02dc5d..dbc222bbbf 100644
--- a/editor/translations/ro.po
+++ b/editor/translations/ro.po
@@ -439,14 +439,22 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "Pas (s):"
+msgid "Snap:"
+msgstr "Aliniere"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
 msgid "Animation step value."
 msgstr "Arborele Animației este valid."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3929,6 +3937,11 @@ msgid "Delete Node"
 msgstr "Creează Nod"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Comutează modul fără distrageri."
@@ -4930,9 +4943,34 @@ msgid "Layout"
 msgstr "Schemă"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Inserează Note"
+msgid "Insert keys (based on mask)."
+msgstr "Inserează Notă (Melodii existente)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim Inserați Cheie"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -5005,6 +5043,52 @@ msgstr "Editează Poligon (Elimină Punct)"
 msgid "Set Handle"
 msgstr "Setează Mâner"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Eroare la încărcarea imaginii:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Nici un pixel cu transparența > 128 în imagine..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Încărcare Mască de Emisie"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Curăță Masca de Emisie"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Particule"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Număr de Puncte Generate:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Mască de Emisie"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Capturare din Pixel"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Culori de Emisie"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5359,52 +5443,15 @@ msgstr ""
 "ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Eroare la încărcarea imaginii:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Nici un pixel cu transparența > 128 în imagine..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Încărcare Mască de Emisie"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Curăță Masca de Emisie"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Particule"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Număr de Puncte Generate:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Timp de Generare (sec):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Mască de Emisie"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Capturare din Pixel"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Culori de Emisie"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Unele fețe nu conțin zonă!"
@@ -5942,7 +5989,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6782,6 +6829,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Creează Mesh de Contur"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Crează Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Creare Poligon de Navigare"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Creează Poligon de Ocluziune"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Mesh-ul este gol!"
 
@@ -6794,17 +6861,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Sprite"
+msgid "Invalid geometry, can't create polygon."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Creează Mesh de Contur"
+msgid "Convert to Mesh2D"
+msgstr "Convertește În..."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Deplasare poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Creare Poligon de Navigare"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Creează Poligon de Ocluziune"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7416,6 +7506,11 @@ msgid "Duplicate Nodes"
 msgstr "Anim Clonare Chei"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Creează Nod"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8600,10 +8695,6 @@ msgid "Open documentation"
 msgstr "Deschide Recente"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10359,6 +10450,14 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "Pas (s):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Inserează Note"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Instanțiază scena(ele) selectată ca un copil al nodului selectat."
 
diff --git a/editor/translations/ru.po b/editor/translations/ru.po
index 19896638b8..b9794177bb 100644
--- a/editor/translations/ru.po
+++ b/editor/translations/ru.po
@@ -5,7 +5,7 @@
 # �ркадий �ва� <savvot@gmail.com>, 2018.
 # Artem Varaksa <aymfst@gmail.com>, 2018.
 # B10nicMachine <shumik1337@gmail.com>, 2017.
-# Chaosus89 <chaosus89@gmail.com>, 2018.
+# Chaosus89 <chaosus89@gmail.com>, 2018, 2019.
 # DimOkGamer <dimokgamer@gmail.com>, 2016-2017.
 # Forest Swamp <sample1989@mail.ru>, 2018.
 # Igor S <scorched@bk.ru>, 2017.
@@ -41,12 +41,14 @@
 # Nikita <iron-nikita@yandex.ru>, 2019.
 # LeLuCh B0й <alekx@alumni.nottingham.ac.uk>, 2019.
 # �р�ений Солодков <arsen332211@gmail.com>, 2019.
+# Nikita <yakrobat@protonmail.com>, 2019.
+# LAT_Rio <AlSenya@yandex.ru>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-28 09:36+0000\n"
-"Last-Translator: �р�ений Солодков <arsen332211@gmail.com>\n"
+"PO-Revision-Date: 2019-04-14 13:04+0000\n"
+"Last-Translator: LAT_Rio <AlSenya@yandex.ru>\n"
 "Language-Team: Russian <https://hosted.weblate.org/projects/godot-engine/"
 "godot/ru/>\n"
 "Language: ru\n"
@@ -210,7 +212,7 @@ msgstr "Функции:"
 
 #: editor/animation_track_editor.cpp
 msgid "Audio Clips:"
-msgstr "�удио Дорожки:"
+msgstr "�удиодорожки:"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Clips:"
@@ -246,9 +248,8 @@ msgid "Time (s): "
 msgstr "Врем� (�ек.): "
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Toggle Track Enabled"
-msgstr "Доплеров�кий режим"
+msgstr "Переключатель дорожки включен"
 
 #: editor/animation_track_editor.cpp
 msgid "Continuous"
@@ -302,11 +303,11 @@ msgstr "Удалить ключ(ключи)"
 
 #: editor/animation_track_editor.cpp
 msgid "Change Animation Update Mode"
-msgstr "Изменить Режим Обновлени� �нимации"
+msgstr "Изменить �по�об обновлени� анимации"
 
 #: editor/animation_track_editor.cpp
 msgid "Change Animation Interpolation Mode"
-msgstr "Изменить Режим Интерпол�ции �нимации"
+msgstr "Изменить метод интерпол�ции анимации"
 
 #: editor/animation_track_editor.cpp
 msgid "Change Animation Loop Mode"
@@ -414,9 +415,8 @@ msgid "Track path is invalid, so can't add a method key."
 msgstr "Путь трека некорректен, потому нельз� добавить ключ метода."
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Method Track Key"
-msgstr "Трек Вызова Метода"
+msgstr "Добавить ключ от�леживани� метода"
 
 #: editor/animation_track_editor.cpp
 msgid "Method not found in object: "
@@ -454,13 +454,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "Группировать треки по узлам или показывать их как про�той �пи�ок."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Прив�зка (�ек): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Прив�зка"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Значение шага анимации."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -579,17 +588,16 @@ msgid "Copy"
 msgstr "Копировать"
 
 #: editor/animation_track_editor_plugins.cpp
-#, fuzzy
 msgid "Add Audio Track Clip"
-msgstr "�удио Дорожки:"
+msgstr "Добавить звуковую дорожку"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip Start Offset"
-msgstr "Изменить �мещение начала в Audio Track клипе"
+msgstr "Изменение �ачального Сдвига �удио Дорожки"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip End Offset"
-msgstr "Изменить �мещение начала в Audio Track клипе"
+msgstr "Изменение Конечного Сдвига �удио Дорожки"
 
 #: editor/array_property_edit.cpp
 msgid "Resize Array"
@@ -1219,9 +1227,8 @@ msgid "Add Bus"
 msgstr "Добавить"
 
 #: editor/editor_audio_buses.cpp
-#, fuzzy
 msgid "Add a new Audio Bus to this layout."
-msgstr "Сохранить ра�кладку звуковой шины как..."
+msgstr "Добавить новую звуковую шину дл� �той ра�кладки."
 
 #: editor/editor_audio_buses.cpp editor/editor_properties.cpp
 #: editor/plugins/animation_player_editor_plugin.cpp editor/property_editor.cpp
@@ -1562,9 +1569,8 @@ msgid "Go to parent folder"
 msgstr "Перейти к родитель�кой папке"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "(Un)favorite current folder."
-msgstr "�евозможно �оздать папку."
+msgstr "Добавить или удалить текущую папку из избранных."
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
 msgid "View items as a grid of thumbnails."
@@ -2038,9 +2044,8 @@ msgid "Save changes to '%s' before closing?"
 msgstr "Сохранить изменени� в «%s» перед закрытием?"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Saved %s modified resource(s)."
-msgstr "�е удало�ь загрузить ре�ур�."
+msgstr "%s измененных ре�ур�ов �охранено."
 
 #: editor/editor_node.cpp
 msgid "A root node is required to save the scene."
@@ -2567,9 +2572,8 @@ msgid "Save & Restart"
 msgstr "Сохранить и перезапу�тить"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Spins when the editor window redraws."
-msgstr "Вращает��, когда окно редактора перери�овывает��!"
+msgstr "Вращает��, когда окно редактора перери�овывает��."
 
 #: editor/editor_node.cpp
 msgid "Update Always"
@@ -3227,7 +3231,7 @@ msgstr "Переме�тить в..."
 
 #: editor/filesystem_dock.cpp editor/plugins/script_editor_plugin.cpp
 msgid "New Script..."
-msgstr "�овый �крипт."
+msgstr "�овый �крипт..."
 
 #: editor/filesystem_dock.cpp
 msgid "New Resource..."
@@ -3674,14 +3678,12 @@ msgid "Move Node Point"
 msgstr "Передвинуть Точку"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace1D Limits"
-msgstr "Изменить врем� \"�мешивани�\""
+msgstr "Изменить границы BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace1D Labels"
-msgstr "Изменить врем� \"�мешивани�\""
+msgstr "Изменить метки BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3692,20 +3694,17 @@ msgstr ""
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Node Point"
-msgstr "Добавить узел"
+msgstr "Добавить точку узла"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Animation Point"
-msgstr "Добавить анимацию"
+msgstr "Добавить точку анимации"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace1D Point"
-msgstr "Удалить точку пути"
+msgstr "Удалить точку BlendSpace1D"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Move BlendSpace1D Node Point"
@@ -3755,29 +3754,24 @@ msgid "Triangle already exists"
 msgstr "Треугольник уже �уще�твует"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Triangle"
-msgstr "Добавить переменную"
+msgstr "Добавить треугольник"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace2D Limits"
-msgstr "Изменить врем� \"�мешивани�\""
+msgstr "Изменить границы BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace2D Labels"
-msgstr "Изменить врем� \"�мешивани�\""
+msgstr "Изменить метки BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace2D Point"
-msgstr "Удалить точку пути"
+msgstr "Удалить точку BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace2D Triangle"
-msgstr "Удалить переменную"
+msgstr "Удалить треугольник BlendSpace2D"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "BlendSpace2D does not belong to an AnimationTree node."
@@ -3788,9 +3782,8 @@ msgid "No triangles exist, so no blending can take place."
 msgstr "�евозможно �мешивать, по�кольку от�ут�твуют треугольники."
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Toggle Auto Triangles"
-msgstr "Переключить автозагрузку глобальных �криптов"
+msgstr "Переключить автоматиче�кие треугольники"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Create triangles by connecting points."
@@ -3810,9 +3803,8 @@ msgid "Blend:"
 msgstr "Смешивание:"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Parameter Changed"
-msgstr "Изменени� материала"
+msgstr "Параметр изменён"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
@@ -3824,9 +3816,8 @@ msgid "Output node can't be added to the blend tree."
 msgstr "Узел вывода не может быть добавлен в дерево �мешивани�."
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Add Node to BlendTree"
-msgstr "Добавить узел(узлы) из дерева"
+msgstr "Добавить узел к BlendTree"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3842,15 +3833,13 @@ msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Nodes Connected"
-msgstr "Подключен"
+msgstr "Узлы �оединены"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Nodes Disconnected"
-msgstr "Отключен"
+msgstr "Узлы разъединены"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
@@ -3859,19 +3848,21 @@ msgstr "�нимаци�"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Delete Node"
+msgstr "Удалить узел"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
 msgstr "Удалить узел(узлы)"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Toggle Filter On/Off"
-msgstr "Переключить �тот трек вкл/выкл."
+msgstr "Переключить фильтр вкл/выкл"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Change Filter"
-msgstr "Изменен фильтр �зыков"
+msgstr "Изменить фильтр"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "No animation player set, so unable to retrieve track names."
@@ -3892,9 +3883,8 @@ msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Node Renamed"
-msgstr "Им� узла"
+msgstr "Узел переименован"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -4125,14 +4115,12 @@ msgid "Cross-Animation Blend Times"
 msgstr "Межанимационный ин�трумент �мешивани�"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Move Node"
-msgstr "Режим перемещени�"
+msgstr "Переме�тить узел"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Add Transition"
-msgstr "Добавить перевод"
+msgstr "Добавить переход"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #: modules/visual_script/visual_script_editor.cpp
@@ -4168,14 +4156,12 @@ msgid "No playback resource set at path: %s."
 msgstr "В пути нет ре�ур�ов во�произведени�: %s."
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Node Removed"
-msgstr "Удалено:"
+msgstr "Узел удалён"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Transition Removed"
-msgstr "Transition узел"
+msgstr "Переход удалён"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Set Start Node (Autoplay)"
@@ -4608,13 +4594,10 @@ msgid "Presets for the anchors and margins values of a Control node."
 msgstr "Преду�тановки дл� �корей и значени� от�тупов контрольного узла."
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-#, fuzzy
 msgid ""
 "Children of containers have their anchors and margins values overridden by "
 "their parent."
-msgstr ""
-"Внимание: Положение и размер детей контейнера определ�ет�� только их "
-"родител�ми."
+msgstr "Якор� и от�тупы дочерних контейнеров переопредел�ют�� их родител�ми."
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Anchors only"
@@ -4847,8 +4830,34 @@ msgid "Layout"
 msgstr "Макет"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "В�тавить ключи."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "В�тавить ключи (Ins)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "В�тавить ключ"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4920,6 +4929,52 @@ msgstr "Редактировать полигон (удалить точку)"
 msgid "Set Handle"
 msgstr "Задать обработчик"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Ошибка при загрузке изображени�:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "�икаких пик�елей � прозрачно�тью > 128 в изображении..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Ма�ка выбро�а загружена"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Ма�ка выбро�а очищена"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Ча�тицы"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Количе�тво �оздаваемых точек:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Ма�ка излучени�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Из пик�ел�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Цвета излучени�"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "ЦПУЧа�тицы"
@@ -5270,52 +5325,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Возможно у�тановить точку только в ParticlesMaterial материал"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Ошибка при загрузке изображени�:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "�икаких пик�елей � прозрачно�тью > 128 в изображении..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Ма�ка выбро�а загружена"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Ма�ка выбро�а очищена"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Преобразовать в CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Ча�тицы"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Количе�тво �оздаваемых точек:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Врем� генерации (�ек):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Ма�ка излучени�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Из пик�ел�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Цвета излучени�"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Грани не �одержат зоны!"
@@ -5826,7 +5844,8 @@ msgid "Save Theme As..."
 msgstr "Сохранить тему как..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " С�ылка на Кла��"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5958,11 +5977,11 @@ msgstr "Открыть онлайн документацию Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Запрашиваемые Документы"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Помогите улучшить документацию Godot, предо�тавив обратную �в�зь"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6162,12 +6181,12 @@ msgstr "У Ñ�того Ñ�келета нет коÑ�тей, Ñ�оздайте доÑ
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 #, fuzzy
 msgid "Create Rest Pose from Bones"
-msgstr "Сделать позу поко� (из ко�тей)"
+msgstr "Создать Позу Поко� из Ко�тей"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 #, fuzzy
 msgid "Set Rest Pose to Bones"
-msgstr "Сделать позу поко� (из ко�тей)"
+msgstr "Задать Позу Поко� Ко�т�м"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Skeleton2D"
@@ -6324,7 +6343,7 @@ msgstr "Зад"
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
 msgid "Align with View"
-msgstr "Совме�тить � видом"
+msgstr "Выравн�ть � обла�тью про�мотра"
 
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "No parent to instance a child at."
@@ -6434,7 +6453,7 @@ msgstr "XForm диалоговое окно"
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
 msgid "Snap Nodes To Floor"
-msgstr "Прив�зать к полу"
+msgstr "Подравн�ть Узел � Полом"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Select Mode (Q)"
@@ -6654,7 +6673,27 @@ msgstr "По�ле"
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
 msgid "Nameless gizmo"
-msgstr "Безым�нный штуковина"
+msgstr "Безым�нный гизмо"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Создать 2D Mesh"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Создать Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Создать полигон �толкновений"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Создан затен�ющий полигон"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
@@ -6670,16 +6709,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "�екорректна� геометри�, не может быть заменена �еткой."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "�екорректна� геометри�, не может быть заменена �еткой."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "�екорректна� геометри�, не может быть заменена �еткой."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "�екорректна� геометри�, не может быть заменена �еткой."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Спрайт"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Преобразовать в 2D Mesh"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Создать 2D Mesh"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Передвинуть полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Создать полигон �толкновений"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Создан затен�ющий полигон"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -6726,14 +6792,12 @@ msgid "(empty)"
 msgstr "(пу�то)"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
-#, fuzzy
 msgid "Animations:"
-msgstr "�нимации"
+msgstr "�нимации:"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
-#, fuzzy
 msgid "New Animation"
-msgstr "�нимаци�"
+msgstr "�ова� анимаци�"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Speed (FPS):"
@@ -6744,9 +6808,8 @@ msgid "Loop"
 msgstr "Зациклить"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
-#, fuzzy
 msgid "Animation Frames:"
-msgstr "Кадры анимации"
+msgstr "Кадры анимации:"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Insert Empty (Before)"
@@ -7034,18 +7097,16 @@ msgid "Merge from Scene"
 msgstr "Сли�ние из �цены"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Next Coordinate"
-msgstr "Следующий �таж"
+msgstr "Следующа� Координата"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the next shape, subtile, or Tile."
 msgstr "Выберите �ледующую фигуру, �лемент тайла или тайл."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Previous Coordinate"
-msgstr "Предыдущий �таж"
+msgstr "Предыдуща� Координата"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the previous shape, subtile, or Tile."
@@ -7064,9 +7125,8 @@ msgid "Erase bitmask."
 msgstr "Стереть битовую ма�ку."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Create a new rectangle."
-msgstr "Создать новый узел."
+msgstr "Создать новый пр�моугольник."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Create a new polygon."
@@ -7206,14 +7266,12 @@ msgid "Clear Tile Bitmask"
 msgstr "Очи�тить Битовую Ма�ку Плитки"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Make Polygon Concave"
-msgstr "Передвинуть полигон"
+msgstr "Сделать Полигон Вогнутым"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Make Polygon Convex"
-msgstr "Передвинуть полигон"
+msgstr "Сделать Полигон Выпуклым"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Remove Tile"
@@ -7262,17 +7320,20 @@ msgstr "Задать единообразное им�"
 #: editor/plugins/visual_shader_editor_plugin.cpp
 #, fuzzy
 msgid "Set Input Default Port"
-msgstr "У�тановить по умолчанию дл� '%s'"
+msgstr "Задать Порт по умолчанию дл� Ввода"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Add Node to Visual Shader"
-msgstr "VisualShader"
+msgstr "Добавить Узел в Визуальный Шейдер"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Duplicate Nodes"
-msgstr "Дублировать узел(узлы)"
+msgstr "Дублировать узлы"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Удалить узел"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
@@ -7297,12 +7358,12 @@ msgstr "Визуальный Шейдер"
 #: editor/plugins/visual_shader_editor_plugin.cpp
 #, fuzzy
 msgid "Edit Visual Property"
-msgstr "Редактировать приоритет тайла"
+msgstr "Редактировать Визуальное Свой�тво"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 #, fuzzy
 msgid "Visual Shader Mode Changed"
-msgstr "Изменени� шейдеров"
+msgstr "Режим Визуального Шейдера был изменен"
 
 #: editor/project_export.cpp
 msgid "Runnable"
@@ -7345,7 +7406,7 @@ msgstr "Эк�порт в�ех"
 #: editor/project_export.cpp
 #, fuzzy
 msgid "The given export path doesn't exist:"
-msgstr "Путь не �уще�твует."
+msgstr "Данный путь �к�порта не �уще�твует:"
 
 #: editor/project_export.cpp
 msgid "Export templates for this platform are missing/corrupted:"
@@ -7652,12 +7713,13 @@ msgid ""
 "Warning: You will not be able to open the project with previous versions of "
 "the engine anymore."
 msgstr ""
-"Файл на�троек проекта был �генерирован �тарой вер�ией движка и должен быть "
-"преобразован дл� текущей вер�ии:\n"
+"Файл на�троек проекта не указывает вер�ию вер�ии движка, на котором он был "
+"�генерирован:\n"
 "\n"
 "%s\n"
 "\n"
-"Вы хотите преобразовать его?\n"
+"Е�ли вы продолжите, то он будет преобразован в формат текущей вер�ии "
+"движка.\n"
 "Внимание: Вы больше не �можете открыть проект предыдущими вер�и�ми движка."
 
 #: editor/project_manager.cpp
@@ -8388,9 +8450,8 @@ msgid "Instantiated scenes can't become root"
 msgstr "Мгновенные �цены не могут быть корневыми"
 
 #: editor/scene_tree_dock.cpp
-#, fuzzy
 msgid "Make node as Root"
-msgstr "Создать корневой узел �цены"
+msgstr "Сделать узел корневым"
 
 #: editor/scene_tree_dock.cpp
 msgid "Delete Node(s)?"
@@ -8431,7 +8492,7 @@ msgstr "Сделать локальным"
 #: editor/scene_tree_dock.cpp
 #, fuzzy
 msgid "New Scene Root"
-msgstr "Создать корневой узел �цены"
+msgstr "�овый Корневой Узел Сцены"
 
 #: editor/scene_tree_dock.cpp
 msgid "Create Root Node:"
@@ -8498,10 +8559,6 @@ msgid "Open documentation"
 msgstr "Открыть документацию"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Удалить узел(узлы)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Добавить дочерний узел"
 
@@ -8863,23 +8920,20 @@ msgid "Set From Tree"
 msgstr "У�тановить из дерева"
 
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Erase Shortcut"
-msgstr "Переход ИЗ"
+msgstr "Удалить Прив�занную Кнопку"
 
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Restore Shortcut"
-msgstr "Гор�чие клавиши"
+msgstr "Во��тановить Прив�занную Кнопку"
 
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Change Shortcut"
-msgstr "Изменить прив�зку"
+msgstr "Изменить Прив�занную Кнопку"
 
 #: editor/settings_config_dialog.cpp
 msgid "Shortcuts"
-msgstr "Гор�чие клавиши"
+msgstr "Прив�занные кнопки"
 
 #: editor/settings_config_dialog.cpp
 msgid "Binding"
@@ -10378,12 +10432,15 @@ msgstr "�азначить форму."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Изменени� могут быть назначены только в функции вершины."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Прив�зка (�ек): "
+
+#~ msgid "Insert keys."
+#~ msgstr "В�тавить ключи."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Добавить выбранную �цену(ы), в каче�тве потомка выбранного узла."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #~ msgid "Warnings:"
 #~ msgstr "Предупреждени�:"
 
@@ -11923,9 +11980,6 @@ msgstr "ИзменениÑ� могут быть назначены только Ð
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "�евозможно перейти в подпапку:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "В�тавить ключи (Ins)"
-
 #~ msgid "Top (Num7)"
 #~ msgstr "Вид �верху (Num 7)"
 
diff --git a/editor/translations/si.po b/editor/translations/si.po
index dab5cb3e0f..581ab36ee0 100644
--- a/editor/translations/si.po
+++ b/editor/translations/si.po
@@ -417,13 +417,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3682,6 +3690,11 @@ msgid "Delete Node"
 msgstr "යතුරු මක� දමන්න"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "ලුහුබදින්න� සක්�රිය/අක්�රිය."
@@ -4635,10 +4648,35 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Anim යතුරක් ඇතුලත් කරන්න"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
 msgstr ""
 
@@ -4706,6 +4744,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5056,52 +5140,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5605,7 +5652,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6424,6 +6471,24 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "ස�දන්න"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "ස�දන්න"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6436,15 +6501,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -7021,6 +7106,11 @@ msgid "Duplicate Nodes"
 msgstr "යතුරු පිටපත් කරන්න"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "යතුරු මක� දමන්න"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8170,10 +8260,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/sk.po b/editor/translations/sk.po
index a664935a69..862f095dd3 100644
--- a/editor/translations/sk.po
+++ b/editor/translations/sk.po
@@ -421,13 +421,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3755,6 +3763,11 @@ msgid "Delete Node"
 msgstr "Všetky vybrané"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4724,10 +4737,35 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Animácia Vložiť Kľú�"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
 msgstr ""
 
@@ -4796,6 +4834,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5152,52 +5236,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5717,7 +5764,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6547,6 +6594,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Vytvoriť adresár"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Vytvoriť adresár"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Vytvoriť adresár"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Vytvoriť adresár"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6559,19 +6626,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
+msgid "Convert to Polygon2D"
+msgstr "Všetky vybrané"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
 msgstr "Vytvoriť adresár"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
 msgstr ""
 
@@ -7175,6 +7263,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplikovať výber"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Všetky vybrané"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8343,10 +8436,6 @@ msgid "Open documentation"
 msgstr "Popis:"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/sl.po b/editor/translations/sl.po
index a18d140b17..23d7e5ebee 100644
--- a/editor/translations/sl.po
+++ b/editor/translations/sl.po
@@ -441,7 +441,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Korak (s):"
 
 #: editor/animation_track_editor.cpp
@@ -449,6 +449,14 @@ msgstr "Korak (s):"
 msgid "Animation step value."
 msgstr "Drevo animacije je veljavno."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3914,6 +3922,11 @@ msgid "Delete Node"
 msgstr "Izberi Gradnik"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Preklop na�in pisanja brez motenj."
@@ -4915,8 +4928,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "V Animacijo Vstavi Klju�"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "V Animacijo Vstavi Klju�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4988,6 +5026,52 @@ msgstr "Uredi Poligon (Odstrani To�ko)"
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5338,52 +5422,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5917,7 +5964,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6757,6 +6804,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Ustvari Nov %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Ustvarite Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Ustvarite Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Ustvarite Mapo"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Model je prazen!"
 
@@ -6769,17 +6836,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Sprite"
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Ustvari Nov %s"
+msgid "Convert to Mesh2D"
+msgstr "Pretvori V..."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Odstrani Poligon in To�ko"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Ustvarite Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7393,6 +7482,11 @@ msgid "Duplicate Nodes"
 msgstr "Animacija Podvoji klju�e"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Izberi Gradnik"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8572,10 +8666,6 @@ msgid "Open documentation"
 msgstr "Odpri Nedavne"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/sq.po b/editor/translations/sq.po
index f3b24cc2f5..d52ebdcd96 100644
--- a/editor/translations/sq.po
+++ b/editor/translations/sq.po
@@ -407,13 +407,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Vlera e hapit për animacionin."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3793,6 +3801,11 @@ msgid "Delete Node"
 msgstr "Fshi Nyjen"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4744,10 +4757,35 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Vendos Key"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
 msgstr ""
 
@@ -4815,6 +4853,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5165,52 +5249,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5714,7 +5761,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6532,6 +6579,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Krijo %s të ri"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Krijo një Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Krijo një Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Krijo një Folder"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6544,15 +6611,37 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
+msgstr "Konverto në %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Krijo një Poligon"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -7123,6 +7212,11 @@ msgid "Duplicate Nodes"
 msgstr "Dyfisho Nyjet"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Fshi Nyjen"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8272,10 +8366,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/sr_Cyrl.po b/editor/translations/sr_Cyrl.po
index 31ff003c25..57e05ca847 100644
--- a/editor/translations/sr_Cyrl.po
+++ b/editor/translations/sr_Cyrl.po
@@ -442,14 +442,22 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "Један корак (�ек.):"
+msgid "Snap:"
+msgstr "Залепи"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
 msgid "Animation step value."
 msgstr "�нимационо дрво је важеће."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3942,6 +3950,11 @@ msgid "Delete Node"
 msgstr "�аправи чвор"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Укљ./И�кљ. режим без �метње."
@@ -4937,9 +4950,34 @@ msgid "Layout"
 msgstr "Ра�поред"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Убаци кључеве"
+msgid "Insert keys (based on mask)."
+msgstr "Убаци кључ (по�тојеће траке)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "Уметни кључ"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -5012,6 +5050,52 @@ msgstr "Уреди полигон (обриши тачку)"
 msgid "Set Handle"
 msgstr "По�тави дршку"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Грешка при учитавању �лике:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "У �лици нема пик�ела �а тран�парентношћу већом од 128..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Учитај ма�ку еми�ије"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Очи�ти ма�ку еми�ије"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Че�тице"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Број генери�аних тачака:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Ма�ка еми�ије"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Сними од пик�ела"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Боје еми�ије"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5366,22 +5450,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Тачка �е �амо може по�тавити у ParticlesMaterial проце�ни материјал"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Грешка при учитавању �лике:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "У �лици нема пик�ела �а тран�парентношћу већом од 128..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Учитај ма�ку еми�ије"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Очи�ти ма�ку еми�ије"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5389,30 +5457,9 @@ msgstr "Претвори у велика �лова"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Че�тице"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Број генери�аних тачака:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Време генери�ања (�ек.):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Ма�ка еми�ије"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Сними од пик�ела"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Боје еми�ије"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Стране не �адрже обла�т!"
@@ -5954,7 +6001,8 @@ msgid "Save Theme As..."
 msgstr "Сачувај тему као..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " референца кла�е"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6811,6 +6859,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "�аправи ивичну мрежу"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "�аправи полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "�аправи навигациони полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "�аправи о�енчен полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Мрежа је празна!"
 
@@ -6823,19 +6891,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Sprite"
 msgstr "�алепи оквир"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Претвори у велика �лова"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "�аправи ивичну мрежу"
+msgid "Convert to Polygon2D"
+msgstr "Помери полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "�аправи навигациони полигон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "�аправи о�енчен полигон"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7467,6 +7557,11 @@ msgid "Duplicate Nodes"
 msgstr "Дуплирај чвор/ове графа"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "�аправи чвор"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8663,10 +8758,6 @@ msgid "Open documentation"
 msgstr "Отвори Godot онлајн документацију"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -10442,12 +10533,17 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "Један корак (�ек.):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Убаци кључеве"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "�аправи �ледећу �цену/е као дете одабраног чвора."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #, fuzzy
 #~ msgid "Font Size:"
 #~ msgstr "Поглед и�пред"
diff --git a/editor/translations/sr_Latn.po b/editor/translations/sr_Latn.po
index 39d66c018c..ac3590e494 100644
--- a/editor/translations/sr_Latn.po
+++ b/editor/translations/sr_Latn.po
@@ -423,13 +423,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3697,6 +3705,11 @@ msgid "Delete Node"
 msgstr "Animacija Obriši Klju�eve"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4653,8 +4666,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Animacija dodaj klju�"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "Animacija dodaj klju�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4726,6 +4764,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5076,52 +5160,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5630,7 +5677,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6451,6 +6498,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Napravi"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Napravi"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Napravi"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Napravi"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6463,19 +6530,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
+msgid "Convert to Polygon2D"
 msgstr "Napravi"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Napravi"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
 msgstr ""
 
@@ -7065,6 +7153,11 @@ msgid "Duplicate Nodes"
 msgstr "Animacija Uduplaj Klju�eve"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Animacija Obriši Klju�eve"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8217,10 +8310,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/sv.po b/editor/translations/sv.po
index 822a6f9388..63a6d6e6c7 100644
--- a/editor/translations/sv.po
+++ b/editor/translations/sv.po
@@ -432,7 +432,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "Steg (s):"
 
 #: editor/animation_track_editor.cpp
@@ -440,6 +440,14 @@ msgstr "Steg (s):"
 msgid "Animation step value."
 msgstr "Animation"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -4159,6 +4167,12 @@ msgid "Delete Node"
 msgstr "Ta bort Nod(er)"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+#, fuzzy
+msgid "Delete Node(s)"
+msgstr "Ta bort Nod(er)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Växla distraktionsfritt läge."
@@ -5165,8 +5179,33 @@ msgid "Layout"
 msgstr "Layout"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Anim Infoga Nyckel"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "Anim Infoga Nyckel"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -5242,6 +5281,53 @@ msgstr "Redigera Polygon (ta bort punkt)"
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+#, fuzzy
+msgid "Particles"
+msgstr "Partiklar"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5603,22 +5689,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5626,31 +5696,9 @@ msgstr "Konvertera till Versaler"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-#, fuzzy
-msgid "Particles"
-msgstr "Partiklar"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -6185,7 +6233,7 @@ msgid "Save Theme As..."
 msgstr "Spara Tema Som..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -7077,6 +7125,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Skapa Ny"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Skapa Prenumeration"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Skapa Prenumeration"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Skapa Mapp"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Sökvägen är tom"
 
@@ -7089,18 +7157,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Konvertera till %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Skapa Ny"
+msgid "Convert to Polygon2D"
+msgstr "Konvertera till %s"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Skapa Prenumeration"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7725,6 +7814,11 @@ msgid "Duplicate Nodes"
 msgstr "Duplicera Nod(er)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Ta bort Nod(er)"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8966,11 +9060,6 @@ msgstr "Öppna Senaste"
 
 #: editor/scene_tree_dock.cpp
 #, fuzzy
-msgid "Delete Node(s)"
-msgstr "Ta bort Nod(er)"
-
-#: editor/scene_tree_dock.cpp
-#, fuzzy
 msgid "Add Child Node"
 msgstr "Lägg till Barn-Node"
 
@@ -10842,9 +10931,6 @@ msgstr ""
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Instansiera valda scen(er) som barn till vald Node."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #, fuzzy
 #~ msgid "Warnings:"
 #~ msgstr "Varning"
diff --git a/editor/translations/ta.po b/editor/translations/ta.po
index 1bb5f50fe1..17e837d5b1 100644
--- a/editor/translations/ta.po
+++ b/editor/translations/ta.po
@@ -418,13 +418,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3686,6 +3694,11 @@ msgid "Delete Node"
 msgstr "அனைத�த� தேர�வ�கள�"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4642,7 +4655,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4713,6 +4750,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5063,52 +5146,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5613,7 +5659,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6431,6 +6477,23 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "அனைத�த� தேர�வ�கள�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6443,15 +6506,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -7029,6 +7112,11 @@ msgid "Duplicate Nodes"
 msgstr "அசைவூட�ட� போலிபச�சாவிகள�"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "அனைத�த� தேர�வ�கள�"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8180,10 +8268,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/te.po b/editor/translations/te.po
index 9b70573576..b5f7015c88 100644
--- a/editor/translations/te.po
+++ b/editor/translations/te.po
@@ -405,13 +405,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3665,6 +3673,11 @@ msgid "Delete Node"
 msgstr ""
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4616,7 +4629,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4687,6 +4724,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5037,52 +5120,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5586,7 +5632,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6404,6 +6450,22 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6416,15 +6478,35 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Convert to Polygon2D"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create CollisionPolygon2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
+msgid "Create LightOccluder2D Sibling"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -6995,6 +7077,10 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+msgid "Delete Nodes"
+msgstr ""
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8144,10 +8230,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/th.po b/editor/translations/th.po
index 79ad3c5357..5b1470e970 100644
--- a/editor/translations/th.po
+++ b/editor/translations/th.po
@@ -448,14 +448,22 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "Snap (พิ�เซล):"
+msgid "Snap:"
+msgstr "จำ�ัด�ารเคลื่อนย้าย"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
 msgid "Animation step value."
 msgstr "ผัง�อนิเมชันถู�ต้อง"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "เฟรมต่อวินาที"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3891,6 +3899,11 @@ msgid "Delete Node"
 msgstr "ลบโหนด"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "ลบโหนด"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "โหมดไร้สิ่งรบ�วน"
@@ -4890,9 +4903,34 @@ msgid "Layout"
 msgstr "เลย์เอาต์"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "เพิ่มคีย์"
+msgid "Insert keys (based on mask)."
+msgstr "เพิ่มคีย์ (�ทร็�ที่มีอยู่�ล้ว)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "�ทร�คีย์�อนิเมชัน"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4965,6 +5003,52 @@ msgstr "à¹�à¸�้ไขรูปหลายเหลี่ยม (ลบจุà
 msgid "Set Handle"
 msgstr "ปรับขนาดรูปร่าง"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "ผิดพลาดขณะโหลดรูป:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "รูปไม่มีพิ�เซลใดที่ความโปร่ง�สง > 128 ..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "โหลด Mask �ารปะทุ"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "ลบ Mask �ารปล่อย"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "อนุภาค"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "จำนวนจุดที่สร้างขึ้น:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Mask �ารปะทุ"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "ใช้สีพิ�เซล"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "สี�ารปะทุ"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5317,22 +5401,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "สามารถ�ำหนดจุดให้��่ ParticlesMaterial เท่านั้น"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "ผิดพลาดขณะโหลดรูป:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "รูปไม่มีพิ�เซลใดที่ความโปร่ง�สง > 128 ..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "โหลด Mask �ารปะทุ"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "ลบ Mask �ารปล่อย"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5340,30 +5408,9 @@ msgstr "�ปลงเป็นตัวพิมพ์ให�่"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "อนุภาค"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "จำนวนจุดที่สร้างขึ้น:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "เวลาใน�ารสร้าง (วินาที):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Mask �ารปะทุ"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "ใช้สีพิ�เซล"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "สี�ารปะทุ"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "หน้าไม่มีพื้นที่!"
@@ -5901,7 +5948,8 @@ msgid "Save Theme As..."
 msgstr "บันทึ�ธีมเป็น"
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " ตำราอ้างอิงคลาส"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6752,6 +6800,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "สร้างเส้นขอบ Mesh"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "สร้างรูปหลายเหลี่ยม"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "สร้างรูปทรงนำทาง"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "สร้างรูปหลายเหลี่ยม�ั้น�สง"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "ตำ�หน่งบันทึ�ว่างเปล่า!"
 
@@ -6764,19 +6832,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Sprite"
 msgstr "SpriteFrames"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "�ปลงเป็น %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "สร้างเส้นขอบ Mesh"
+msgid "Convert to Polygon2D"
+msgstr "ย้ายรูปหลายเหลี่ยม"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "สร้างรูปทรงนำทาง"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "สร้างรูปหลายเหลี่ยม�ั้น�สง"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7405,6 +7495,11 @@ msgid "Duplicate Nodes"
 msgstr "ทำซ้ำโหนด"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "ลบโหนด"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8609,10 +8704,6 @@ msgid "Open documentation"
 msgstr "เปิดคู่มือ"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "ลบโหนด"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "เพิ่มโหนดลู�"
 
@@ -10432,12 +10523,17 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "Snap (พิ�เซล):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "เพิ่มคีย์"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "อินส�ตนซ์ฉา�ที่เลือ�ให้เป็นโหนดลู�ของโหนดที่เลือ�"
 
-#~ msgid "FPS"
-#~ msgstr "เฟรมต่อวินาที"
-
 #, fuzzy
 #~ msgid "Warnings:"
 #~ msgstr "คำเตือน"
diff --git a/editor/translations/tr.po b/editor/translations/tr.po
index 6ee2fd344a..30f753d6ab 100644
--- a/editor/translations/tr.po
+++ b/editor/translations/tr.po
@@ -23,12 +23,14 @@
 # ege1212 <owlphp@gmail.com>, 2019.
 # Ömer YAZICIOĞLU <oyazicioglu@gmail.com>, 2019.
 # Mertcan Duman <mertcan.dmn16@gmail.com>, 2019.
+# Furkan Türkal <furkan.turkal@hotmail.com>, 2019.
+# Aiden Demir <dnm00110011@hotmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-19 15:04+0000\n"
-"Last-Translator: Mertcan Duman <mertcan.dmn16@gmail.com>\n"
+"PO-Revision-Date: 2019-04-14 13:04+0000\n"
+"Last-Translator: Aiden Demir <dnm00110011@hotmail.com>\n"
 "Language-Team: Turkish <https://hosted.weblate.org/projects/godot-engine/"
 "godot/tr/>\n"
 "Language: tr\n"
@@ -52,17 +54,16 @@ msgstr "Byte kodu çözmek için yetersiz byte, ya da Geçersiz format."
 
 #: core/math/expression.cpp
 msgid "Invalid input %i (not passed) in expression"
-msgstr "Geçersiz girdi, ifadede %i (geçirilmedi)"
+msgstr "%i ifadesindeki girdi geçersiz"
 
 #: core/math/expression.cpp
 msgid "self can't be used because instance is null (not passed)"
-msgstr ""
-"\"self\" ifadesi kullanılamaz çünkü örnekleme \"null\" yani tanımlanmadı."
+msgstr "\"self\" ifadesi kullanılamaz, çünkü nesne \"null\" (tanımlandı)."
 
 #: core/math/expression.cpp
 #, fuzzy
 msgid "Invalid operands to operator %s, %s and %s."
-msgstr "%s düğümünde geçersiz indeks özelliği ismi '%s'."
+msgstr "Geçersiz işlenen operatörler %s, %s ve %s"
 
 #: core/math/expression.cpp
 msgid "Invalid index of type %s for base type %s"
@@ -90,33 +91,28 @@ msgid "Balanced"
 msgstr "DengelenmiÅŸ"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Mirror"
-msgstr "ayna"
+msgstr "Ayna"
 
 #: editor/animation_bezier_editor.cpp
 msgid "Insert Key Here"
 msgstr "Anahtar Gir"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Duplicate Selected Key(s)"
-msgstr "Seçimi Çoğalt"
+msgstr "Seçilen Tuşu/Tuşları Çoğalt"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Delete Selected Key(s)"
-msgstr "Seçilenleri Sil"
+msgstr "Seçilen Tuşu/Tuşları Sil"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Add Bezier Point"
-msgstr "Nokta Ekle"
+msgstr "Bezier Noktası Ekle"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Move Bezier Points"
-msgstr "Noktayı Taşı"
+msgstr "Bezier Noktalarını Taşı"
 
 #: editor/animation_bezier_editor.cpp editor/animation_track_editor.cpp
 msgid "Anim Duplicate Keys"
@@ -285,9 +281,8 @@ msgid "Duplicate Key(s)"
 msgstr "Düğüm(leri) Çoğalt"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Delete Key(s)"
-msgstr "Düğümleri Sil"
+msgstr "Tuşları Sil"
 
 #: editor/animation_track_editor.cpp
 msgid "Change Animation Update Mode"
@@ -344,7 +339,6 @@ msgid "Anim Insert Key"
 msgstr "Animasyon Anahtar Gir"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Animation Step"
 msgstr "Animasyon Adımını Değiştir"
 
@@ -446,13 +440,21 @@ msgstr "İzleri düğüme göre grupla veya onları düz liste olarak göster."
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
-msgstr "Yapış (Noktalara):"
+msgid "Snap:"
+msgstr "Yapış"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Animasyon adım değeri."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "FPS"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -487,17 +489,14 @@ msgid "Duplicate Transposed"
 msgstr "Tersine Çevrilmişi Çoğalt"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Delete Selection"
 msgstr "Seçilenleri Sil"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Go to Next Step"
 msgstr "Sonraki Adıma Git"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Go to Previous Step"
 msgstr "Önceki Adıma Git"
 
@@ -752,12 +751,10 @@ msgid "Disconnect"
 msgstr "Bağlantıyı kes"
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Connect Signal: "
 msgstr "Bağlantı Sinyali: "
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Edit Connection: "
 msgstr "Bağlantıları Düzenle "
 
@@ -779,7 +776,6 @@ msgid "Disconnect All"
 msgstr "Tüm Bağlantıları Kes"
 
 #: editor/connections_dialog.cpp
-#, fuzzy
 msgid "Edit..."
 msgstr "Düzenle"
 
@@ -918,9 +914,8 @@ msgid "Error loading:"
 msgstr "Yüklerken hata:"
 
 #: editor/dependency_editor.cpp
-#, fuzzy
 msgid "Load failed due to missing dependencies:"
-msgstr "Sahnedeki kayıp bağımlılıklar yüzünden sahneyi yükleme başarısız oldu:"
+msgstr "Yükleme eksik bağlamlar yüzünden başarısız oldu:"
 
 #: editor/dependency_editor.cpp editor/editor_node.cpp
 msgid "Open Anyway"
@@ -1218,9 +1213,8 @@ msgid "Add Bus"
 msgstr "Bus ekle"
 
 #: editor/editor_audio_buses.cpp
-#, fuzzy
 msgid "Add a new Audio Bus to this layout."
-msgstr "Audio Bus Yerleşim Düzenini Farklı Kaydet..."
+msgstr ""
 
 #: editor/editor_audio_buses.cpp editor/editor_properties.cpp
 #: editor/plugins/animation_player_editor_plugin.cpp editor/property_editor.cpp
@@ -1388,27 +1382,30 @@ msgid "Storing File:"
 msgstr "Dosya Depolama:"
 
 #: editor/editor_export.cpp
-#, fuzzy
 msgid "No export template found at the expected path:"
 msgstr ""
-"Hiçbir dışa aktarım kalıbı bulunamadı.\n"
-"Dışa aktarım kalıplarını indirin ve yükleyin..."
 
 #: editor/editor_export.cpp
 msgid "Packing"
 msgstr "Çıkınla"
 
 #: editor/editor_export.cpp
+#, fuzzy
 msgid ""
 "Target platform requires 'ETC' texture compression for GLES2. Enable 'Import "
 "Etc' in Project Settings."
 msgstr ""
+"Hedef platform GLES2 için 'ETC' doku sıkıştırma gerektirir. Proje "
+"Ayarları'nda 'Import Etc' etkinleştirin."
 
 #: editor/editor_export.cpp
+#, fuzzy
 msgid ""
 "Target platform requires 'ETC2' texture compression for GLES3. Enable "
 "'Import Etc 2' in Project Settings."
 msgstr ""
+"Hedef platform GLES3 için 'ETC2' doku sıkıştırma gerektirir. Proje "
+"Ayarları'nda 'Import Etc 2' etkinleştirin."
 
 #: editor/editor_export.cpp
 msgid ""
@@ -3927,6 +3924,11 @@ msgid "Delete Node"
 msgstr "Düğümleri Sil"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Düğümleri Sil"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Dikkat-Dağıtmayan Kipine geç."
@@ -4930,9 +4932,34 @@ msgid "Layout"
 msgstr "Yerleşim Düzeni"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Anahtar Gir (Var Olan Ä°zler)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "Anahtarları Gir"
+msgid "Auto Insert Key"
+msgstr "Animasyon Anahtar Gir"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -5005,6 +5032,52 @@ msgstr "Çokluyu Düzenleyin (Noktayı Silin)"
 msgid "Set Handle"
 msgstr "Tutamacı Ayarla"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Resim yüklenirken hata:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "Saydamlığı olan nokta yok > 128 bedizde..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Yayma Maskesini Yükle"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Yayma Maskesini Temizle"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Parçacıklar"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Üretilen Nokta Sayısı:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Emisyon Maskesi"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Pikselden Yakala"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Emisyon Renkleri"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #, fuzzy
 msgid "CPUParticles"
@@ -5357,22 +5430,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "Nokta sadece ParçacıkMateryal işlem materyalinin içinde ayarlanabilir"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Resim yüklenirken hata:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "Saydamlığı olan nokta yok > 128 bedizde..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Yayma Maskesini Yükle"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Yayma Maskesini Temizle"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5380,30 +5437,9 @@ msgstr "Büyük Harfe Dönüştür"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Parçacıklar"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Üretilen Nokta Sayısı:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Nesil Süresi (sn):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Emisyon Maskesi"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Pikselden Yakala"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Emisyon Renkleri"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Yüzler alan içermez!"
@@ -5941,7 +5977,8 @@ msgid "Save Theme As..."
 msgstr "Temayı Farklı Kaydet..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " Sınıf Başvurusu"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6792,6 +6829,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "Anahat Örüntüsü Oluştur"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Çoklu Oluşturun"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Yönlendirici Çokgeni Oluştur"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Engelleyici Çokgeni Oluştur"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "Kayıt yolu boş!"
 
@@ -6804,19 +6861,41 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Sprite"
 msgstr "GörüntüKareleri"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "Şuna Dönüştür %s"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Anahat Örüntüsü Oluştur"
+msgid "Convert to Polygon2D"
+msgstr "Çokgeni Taşı"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Yönlendirici Çokgeni Oluştur"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Engelleyici Çokgeni Oluştur"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7444,6 +7523,11 @@ msgid "Duplicate Nodes"
 msgstr "Düğüm(leri) Çoğalt"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Düğümleri Sil"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8658,10 +8742,6 @@ msgid "Open documentation"
 msgstr "Çevrimiçi Godot dökümanlarını aç"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Düğümleri Sil"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Çocuk Düğüm Ekle"
 
@@ -10545,12 +10625,17 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#, fuzzy
+#~ msgid "Snap (s): "
+#~ msgstr "Yapış (Noktalara):"
+
+#, fuzzy
+#~ msgid "Insert keys."
+#~ msgstr "Anahtarları Gir"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Seçilen sahneyi/sahneleri seçilen düğüme çocuk olarak örneklendir."
 
-#~ msgid "FPS"
-#~ msgstr "FPS"
-
 #, fuzzy
 #~ msgid "Warnings:"
 #~ msgstr "Uyarılar"
diff --git a/editor/translations/uk.po b/editor/translations/uk.po
index 95f9d87aae..637c1ffac4 100644
--- a/editor/translations/uk.po
+++ b/editor/translations/uk.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Ukrainian (Godot Engine)\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-12 15:26+0000\n"
+"PO-Revision-Date: 2019-03-30 20:04+0000\n"
 "Last-Translator: Yuri Chornoivan <yurchor@ukr.net>\n"
 "Language-Team: Ukrainian <https://hosted.weblate.org/projects/godot-engine/"
 "godot/uk/>\n"
@@ -25,7 +25,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
 "%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
-"X-Generator: Weblate 3.5.1\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -425,13 +425,22 @@ msgstr ""
 "Групувати доріжки за вузлами або показувати їх у форматі про�того �пи�ку."
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "Прилипанн� (�): "
+#, fuzzy
+msgid "Snap:"
+msgstr "Прилипанн�"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "Значенн� кроку анімації."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "Кадри за �екунду"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3819,6 +3828,11 @@ msgid "Delete Node"
 msgstr "Вилучити вузол"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Вилучити вузли"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr "Увімкнути або вимкнути фільтр"
 
@@ -4796,8 +4810,34 @@ msgid "Layout"
 msgstr "Макет"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "В�тавити ключі."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "В�тавити ключ (і�нуючі доріжки)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "В�тавити ключ анімації"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4870,6 +4910,52 @@ msgstr "Редагувати полігон (вилучити точку)"
 msgid "Set Handle"
 msgstr "В�тановити обробник"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "Помилка завантаженн� зображенн�:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "В зображенні немає пік�елів з прозорі�тю > 128..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "Завантажити ма�ку випромінюванн�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "Очи�тити ма�ку випромінюванн�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "Ча�тинки"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "Кількі�ть генерованих точок:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "Ма�ка випромінюванн�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "Захопити з пік�ел�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "Кольори випромінюванн�"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUParticles"
@@ -5221,52 +5307,15 @@ msgstr ""
 "По�тавити точку можна тільки в процедурному матеріалі ParticlesMaterial"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "Помилка завантаженн� зображенн�:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "В зображенні немає пік�елів з прозорі�тю > 128..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "Завантажити ма�ку випромінюванн�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "Очи�тити ма�ку випромінюванн�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "Перетворити на CPUParticles"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "Ча�тинки"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "Кількі�ть генерованих точок:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "Ча� генерації (�ек):"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "Ма�ка випромінюванн�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "Захопити з пік�ел�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "Кольори випромінюванн�"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "Грані не мі�т�ть діл�нки!"
@@ -5777,7 +5826,8 @@ msgid "Save Theme As..."
 msgstr "Зберегти тему �к..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " По�иланн� на кла�"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5909,11 +5959,11 @@ msgstr "Відкрити онлайнову документацію Godot"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "Запит щодо документації"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "Допоможіть у поліпшенні документації до Godot, наді�лавши �вій відгук"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6603,6 +6653,26 @@ msgid "Nameless gizmo"
 msgstr "Штука без назви"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Створити пло�ку �ітку"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Створити Polygon3D"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Створити полігон зіткненн�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Створено затінювальний полігон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Спрайт порожній!"
 
@@ -6617,16 +6687,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "�екоректна геометрі�, неможливо замінити �іткою."
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "�екоректна геометрі�, неможливо замінити �іткою."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "�екоректна геометрі�, неможливо замінити �іткою."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "�екоректна геометрі�, неможливо замінити �іткою."
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Спрайт"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "Перетворити на пло�ку �ітку"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "Створити пло�ку �ітку"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "Перемі�тити полігон"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Створити полігон зіткненн�"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "Створено затінювальний полігон"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7215,6 +7312,11 @@ msgid "Duplicate Nodes"
 msgstr "Дублювати вузли"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Вилучити вузол"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr "Змінено тип введенн� дл� візуального шейдера"
 
@@ -8436,10 +8538,6 @@ msgid "Open documentation"
 msgstr "Відкрити документацію"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Вилучити вузли"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "Додати дочірній вузол"
 
@@ -10326,12 +10424,15 @@ msgstr "Призначенн� однорідного."
 msgid "Varyings can only be assigned in vertex function."
 msgstr "Змінні величини можна пов'�зувати лише із функцією вузлів."
 
+#~ msgid "Snap (s): "
+#~ msgstr "Прилипанн� (�): "
+
+#~ msgid "Insert keys."
+#~ msgstr "В�тавити ключі."
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "Додати вибрану �цену(и), �к нащадка вибраного вузла."
 
-#~ msgid "FPS"
-#~ msgstr "Кадри за �екунду"
-
 #~ msgid "Warnings:"
 #~ msgstr "Попередженн�:"
 
diff --git a/editor/translations/ur_PK.po b/editor/translations/ur_PK.po
index 72cbf7eb88..cf4d0fe630 100644
--- a/editor/translations/ur_PK.po
+++ b/editor/translations/ur_PK.po
@@ -413,13 +413,21 @@ msgid "Group tracks by node or display them as plain list."
 msgstr ""
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr ""
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr ""
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3714,6 +3722,11 @@ msgid "Delete Node"
 msgstr ".اینیمیشن کی کیز کو ڈیلیٹ کرو"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
 msgstr ""
 
@@ -4680,7 +4693,31 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert keys (based on mask)."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Auto Insert Key"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4752,6 +4789,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5105,52 +5188,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5667,7 +5713,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6494,6 +6540,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "سب سکریپشن بنائیں"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "سب سکریپشن بنائیں"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "سب سکریپشن بنائیں"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "سب سکریپشن بنائیں"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6506,19 +6572,40 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
+msgid "Convert to Polygon2D"
+msgstr ".تمام کا انتخاب"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
 msgstr "سب سکریپشن بنائیں"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
 msgstr ""
 
@@ -7113,6 +7200,11 @@ msgid "Duplicate Nodes"
 msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr ".اینیمیشن کی کیز کو ڈیلیٹ کرو"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8272,10 +8364,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/vi.po b/editor/translations/vi.po
index 74bd1df7eb..d18046ad52 100644
--- a/editor/translations/vi.po
+++ b/editor/translations/vi.po
@@ -436,7 +436,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "BÆ°á»›c (s):"
 
 #: editor/animation_track_editor.cpp
@@ -444,6 +444,14 @@ msgstr "BÆ°á»›c (s):"
 msgid "Animation step value."
 msgstr "Phóng Animation."
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3798,6 +3806,11 @@ msgid "Delete Node"
 msgstr "Xóa Node(s)"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "Xóa Node(s)"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "Bật tắt Ưa thích"
@@ -4777,8 +4790,33 @@ msgid "Layout"
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "Chèn Key Anim"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "Chèn Key Anim"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -4850,6 +4888,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5200,52 +5284,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5764,7 +5811,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6594,6 +6641,26 @@ msgid "Nameless gizmo"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "Tạo %s Mới"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "Tạo"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "Tạo"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "Tạo Folder"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr ""
 
@@ -6606,17 +6673,38 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "Tạo %s Mới"
+msgid "Convert to Polygon2D"
+msgstr "Xóa Animation"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "Tạo"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7216,6 +7304,11 @@ msgid "Duplicate Nodes"
 msgstr "Nhân đôi Node(s)"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "Xóa Node(s)"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8382,10 +8475,6 @@ msgid "Open documentation"
 msgstr ""
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "Xóa Node(s)"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/zh_CN.po b/editor/translations/zh_CN.po
index c1d2f61af9..3e03b0e8ff 100644
--- a/editor/translations/zh_CN.po
+++ b/editor/translations/zh_CN.po
@@ -42,12 +42,14 @@
 # ws00010203 <ws00010203@hotmail.com>, 2019.
 # Song DongHui <14729626293@163.com>, 2019.
 # simano clio <sim2cle@gmail.com>, 2019.
+# ByonkoGalilei <byonko@qq.com>, 2019.
+# qjyqjyqjyqjy <qjyqjyqjyqjy@sina.com.cn>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Chinese (Simplified) (Godot Engine)\n"
 "POT-Creation-Date: 2018-01-20 12:15+0200\n"
-"PO-Revision-Date: 2019-03-24 04:06+0000\n"
-"Last-Translator: simano clio <sim2cle@gmail.com>\n"
+"PO-Revision-Date: 2019-04-23 15:48+0000\n"
+"Last-Translator: qjyqjyqjyqjy <qjyqjyqjyqjy@sina.com.cn>\n"
 "Language-Team: Chinese (Simplified) <https://hosted.weblate.org/projects/"
 "godot-engine/godot/zh_Hans/>\n"
 "Language: zh_CN\n"
@@ -55,7 +57,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Weblate 3.6-dev\n"
+"X-Generator: Weblate 3.7-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -66,7 +68,7 @@ msgstr "convert函数�数类型�法，请传入以“TYPE_�打头的常�
 #: modules/mono/glue/gd_glue.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
 msgid "Not enough bytes for decoding bytes, or invalid format."
-msgstr "没有足够的字节�解�或格��正确。"
+msgstr "没有足够的字节�解�或无效的格�。"
 
 #: core/math/expression.cpp
 msgid "Invalid input %i (not passed) in expression"
@@ -74,27 +76,27 @@ msgstr "表达�中有�法的输入 %i （未通过）"
 
 #: core/math/expression.cpp
 msgid "self can't be used because instance is null (not passed)"
-msgstr "自身无法使用因为实例为空"
+msgstr "self无法使用因为实例为空(�通过)"
 
 #: core/math/expression.cpp
 msgid "Invalid operands to operator %s, %s and %s."
-msgstr "�算符％s，％s和％s的�作数无效。"
+msgstr "�作符的�作数无效%s, %s and %s."
 
 #: core/math/expression.cpp
 msgid "Invalid index of type %s for base type %s"
-msgstr "无效内存地�类型 %s，基类 %s"
+msgstr "无效类型索引 %s，从基类 %s"
 
 #: core/math/expression.cpp
 msgid "Invalid named index '%s' for base type %s"
-msgstr "对基础类型 %s �法的具�索引 '%s'"
+msgstr "从基类 %s 无效的�称索引 '%s'"
 
 #: core/math/expression.cpp
 msgid "Invalid arguments to construct '%s'"
-msgstr "：无效�数类型： '%s'"
+msgstr "构造的�数无效： '%s'"
 
 #: core/math/expression.cpp
 msgid "On call to '%s':"
-msgstr "在对 '%s' 的调用中:"
+msgstr "对'%s'调用 :"
 
 #: editor/animation_bezier_editor.cpp
 #: editor/plugins/asset_library_editor_plugin.cpp
@@ -122,18 +124,16 @@ msgid "Delete Selected Key(s)"
 msgstr "删除已选帧"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Add Bezier Point"
-msgstr "添加顶点"
+msgstr "添加�塞尔顶点"
 
 #: editor/animation_bezier_editor.cpp
-#, fuzzy
 msgid "Move Bezier Points"
-msgstr "移动点"
+msgstr "移动�塞尔顶点"
 
 #: editor/animation_bezier_editor.cpp editor/animation_track_editor.cpp
 msgid "Anim Duplicate Keys"
-msgstr "�制关键帧"
+msgstr "动画�制关键帧"
 
 #: editor/animation_bezier_editor.cpp editor/animation_track_editor.cpp
 msgid "Anim Delete Keys"
@@ -141,7 +141,7 @@ msgstr "删除关键帧"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Change Keyframe Time"
-msgstr "修改动画关键帧的时间"
+msgstr "修改动画关键帧的时长"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Change Transition"
@@ -218,9 +218,8 @@ msgid "Anim Clips:"
 msgstr "动画剪辑："
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Track Path"
-msgstr "修改数组值"
+msgstr "改�轨迹路径"
 
 #: editor/animation_track_editor.cpp
 msgid "Toggle this track on/off."
@@ -247,9 +246,8 @@ msgid "Time (s): "
 msgstr "时间（秒）： "
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Toggle Track Enabled"
-msgstr "�用多普勒效应"
+msgstr "�用轨�切�"
 
 #: editor/animation_track_editor.cpp
 msgid "Continuous"
@@ -302,19 +300,16 @@ msgid "Delete Key(s)"
 msgstr "删除帧"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Animation Update Mode"
-msgstr "�命�动画:"
+msgstr "更改动画更新模�"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Animation Interpolation Mode"
-msgstr "�值模�"
+msgstr "更改动画�值模�"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Animation Loop Mode"
-msgstr "修改循环"
+msgstr "更改动画循环模�"
 
 #: editor/animation_track_editor.cpp
 msgid "Remove Anim Track"
@@ -358,14 +353,12 @@ msgid "Anim Insert Key"
 msgstr "�入关键帧"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Change Animation Step"
-msgstr "修改FPS"
+msgstr "更改动画步长"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Rearrange Tracks"
-msgstr "�排�Autoload"
+msgstr "�新排列轨�"
 
 #: editor/animation_track_editor.cpp
 msgid "Transform tracks only apply to Spatial-based nodes."
@@ -396,9 +389,8 @@ msgid "Not possible to add a new track without a root"
 msgstr "无法在没有root的情况下添加新轨�"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Bezier Track"
-msgstr "添加轨�"
+msgstr "添加�塞尔轨�"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a key."
@@ -409,23 +401,20 @@ msgid "Track is not of type Spatial, can't insert key"
 msgstr "Track�是Spatial类型，�能作为键值�入"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Transform Track Key"
-msgstr "3D��轨�"
+msgstr "添加转�轨�键"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Track Key"
-msgstr "添加轨�"
+msgstr "添加轨�键"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a method key."
 msgstr "跟踪路径无效，所以�能添加方法帧。"
 
 #: editor/animation_track_editor.cpp
-#, fuzzy
 msgid "Add Method Track Key"
-msgstr "调用方法轨�"
+msgstr "添加方法轨�键"
 
 #: editor/animation_track_editor.cpp
 msgid "Method not found in object: "
@@ -461,13 +450,22 @@ msgid "Group tracks by node or display them as plain list."
 msgstr "按节点分组或将它们显示为普通列表。"
 
 #: editor/animation_track_editor.cpp
-msgid "Snap (s): "
-msgstr "�附： "
+#, fuzzy
+msgid "Snap:"
+msgstr "�附"
 
 #: editor/animation_track_editor.cpp
 msgid "Animation step value."
 msgstr "动画步进值。"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr "帧数"
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -586,17 +584,16 @@ msgid "Copy"
 msgstr "�制"
 
 #: editor/animation_track_editor_plugins.cpp
-#, fuzzy
 msgid "Add Audio Track Clip"
-msgstr "音频剪辑："
+msgstr "添加音频轨�剪辑"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip Start Offset"
-msgstr ""
+msgstr "更改音频轨�剪辑起始�移"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip End Offset"
-msgstr ""
+msgstr "更改音频轨�剪辑结��移"
 
 #: editor/array_property_edit.cpp
 msgid "Resize Array"
@@ -1311,7 +1308,7 @@ msgstr "�在资�路径下。"
 
 #: editor/editor_autoload_settings.cpp
 msgid "Add AutoLoad"
-msgstr "添加Autoload"
+msgstr "添加自动加载"
 
 #: editor/editor_autoload_settings.cpp editor/editor_file_dialog.cpp
 #: editor/plugins/animation_tree_editor_plugin.cpp scene/gui/file_dialog.cpp
@@ -1396,13 +1393,13 @@ msgstr "打包中"
 msgid ""
 "Target platform requires 'ETC' texture compression for GLES2. Enable 'Import "
 "Etc' in Project Settings."
-msgstr ""
+msgstr "目标平�需�GLES2的“ETC�纹�压缩。在项目设置中�用“导入Etc�。"
 
 #: editor/editor_export.cpp
 msgid ""
 "Target platform requires 'ETC2' texture compression for GLES3. Enable "
 "'Import Etc 2' in Project Settings."
-msgstr ""
+msgstr "目标平�需�GLES3的“ETC2�纹�压缩。在项目设置中�用“导入Etc 2�。"
 
 #: editor/editor_export.cpp
 msgid ""
@@ -1411,6 +1408,8 @@ msgid ""
 "Enable 'Import Etc' in Project Settings, or disable 'Driver Fallback "
 "Enabled'."
 msgstr ""
+"目标平�需�'ETC'纹�压缩，以便驱动程�回退到GLES2。\n"
+"在项目设置中�用“导入Etc�，或�用“�用驱动程�回退�。"
 
 #: editor/editor_export.cpp platform/android/export/export.cpp
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
@@ -1533,23 +1532,20 @@ msgid "Move Favorite Down"
 msgstr "�下移动收�"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Previous Folder"
-msgstr "上一个层"
+msgstr "上一个文件夹"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "Next Folder"
-msgstr "下一层"
+msgstr "下一个文件夹"
 
 #: editor/editor_file_dialog.cpp
 msgid "Go to parent folder"
 msgstr "转到上层文件夹"
 
 #: editor/editor_file_dialog.cpp
-#, fuzzy
 msgid "(Un)favorite current folder."
-msgstr "无法创建目录。"
+msgstr "（�消）收�当�文件夹。"
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
 msgid "View items as a grid of thumbnails."
@@ -1781,9 +1777,8 @@ msgid "Project export failed with error code %d."
 msgstr "项目导出失败，错误代� %d。"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Imported resources can't be saved."
-msgstr "已导入的资�"
+msgstr "导入的资�无法�存。"
 
 #: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
 #: scene/gui/dialogs.cpp
@@ -1798,7 +1793,7 @@ msgstr "�存资�出错�"
 msgid ""
 "This resource can't be saved because it does not belong to the edited scene. "
 "Make it unique first."
-msgstr ""
+msgstr "无法�存此资�，因为它�属于已编辑的场景。首先使它唯一化。"
 
 #: editor/editor_node.cpp editor/plugins/animation_player_editor_plugin.cpp
 msgid "Save Resource As..."
@@ -2010,14 +2005,12 @@ msgid "Save changes to '%s' before closing?"
 msgstr "在关闭��存更改到 %s �？"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "Saved %s modified resource(s)."
-msgstr "加载资�失败。"
+msgstr "已�存％s修改�的资�。"
 
 #: editor/editor_node.cpp
-#, fuzzy
 msgid "A root node is required to save the scene."
-msgstr "大图导入仅支�一个输入文件。"
+msgstr "�存场景需�根节点。"
 
 #: editor/editor_node.cpp
 msgid "Save Scene As..."
@@ -2455,7 +2448,7 @@ msgstr "在线文档"
 
 #: editor/editor_node.cpp
 msgid "Q&A"
-msgstr "问答"
+msgstr "常�问题与答案"
 
 #: editor/editor_node.cpp
 msgid "Issue Tracker"
@@ -3606,19 +3599,16 @@ msgstr "加载..."
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Move Node Point"
-msgstr "移动点"
+msgstr "移动节点"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace1D Limits"
-msgstr "更改混�时间"
+msgstr "更改混�空间1D�制"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace1D Labels"
-msgstr "更改混�时间"
+msgstr "更改混�空间1D标签"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3628,24 +3618,21 @@ msgstr "此类型的节点�能被使用。仅�许使用根节点。"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Node Point"
-msgstr "添加节点"
+msgstr "添加节点顶点"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Animation Point"
-msgstr "添加动画"
+msgstr "添加动画点"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace1D Point"
-msgstr "移除路径顶点"
+msgstr "移除混�空间1D顶点"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Move BlendSpace1D Node Point"
-msgstr ""
+msgstr "移动混�空间1D节点顶点"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3690,29 +3677,24 @@ msgid "Triangle already exists"
 msgstr "三角形已�存在"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Add Triangle"
-msgstr "添加��"
+msgstr "添加三角�"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace2D Limits"
-msgstr "更改混�时间"
+msgstr "更改混�空间2D�制"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Change BlendSpace2D Labels"
-msgstr "更改混�时间"
+msgstr "更改混�空间2D标签"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace2D Point"
-msgstr "移除路径顶点"
+msgstr "移除混�空间2D顶点"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Remove BlendSpace2D Triangle"
-msgstr "删除��"
+msgstr "移除混�空间2D三角形"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "BlendSpace2D does not belong to an AnimationTree node."
@@ -3723,9 +3705,8 @@ msgid "No triangles exist, so no blending can take place."
 msgstr "�存在任何三角形，因此�会有任何混效果�产生。"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
-#, fuzzy
 msgid "Toggle Auto Triangles"
-msgstr "切�全局AutoLoad"
+msgstr "切�自动三角形"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Create triangles by connecting points."
@@ -3745,9 +3726,8 @@ msgid "Blend:"
 msgstr "混�:"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Parameter Changed"
-msgstr "�质�更"
+msgstr "�数已更改"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
@@ -3759,15 +3739,13 @@ msgid "Output node can't be added to the blend tree."
 msgstr "输出节点�能被添加到混�树。"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Add Node to BlendTree"
-msgstr "从树中添加节点"
+msgstr "在��树中添加节点"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Node Moved"
-msgstr "移动模�"
+msgstr "节点已移动"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3776,36 +3754,35 @@ msgstr "无法连接，端��能被�用或者连接无效。"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Nodes Connected"
-msgstr "已连接"
+msgstr "节点已连接"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Nodes Disconnected"
-msgstr "已断开"
+msgstr "节点断开连接"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Set Animation"
-msgstr "新建动画"
+msgstr "设置动画"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Delete Node"
 msgstr "删除节点"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr "删除节点"
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Toggle Filter On/Off"
-msgstr "切�当�轨�开关。"
+msgstr "打开/关闭过滤器"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
-#, fuzzy
 msgid "Change Filter"
-msgstr "修改区域设置筛选模�"
+msgstr "更改过滤器"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "No animation player set, so unable to retrieve track names."
@@ -3824,9 +3801,8 @@ msgstr "动画播放器没有�法的根节点路径，因此无法获�轨�
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Node Renamed"
-msgstr "节点�称"
+msgstr "节点已�命�"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -4054,14 +4030,12 @@ msgid "Cross-Animation Blend Times"
 msgstr "跨动画时间混�"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Move Node"
-msgstr "移动模�"
+msgstr "移动节点"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Add Transition"
-msgstr "添加语言"
+msgstr "添加转�"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #: modules/visual_script/visual_script_editor.cpp
@@ -4097,18 +4071,16 @@ msgid "No playback resource set at path: %s."
 msgstr "在路径： %s 下没有任何播放资�。"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Node Removed"
-msgstr "已移除:"
+msgstr "节点已移除"
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Transition Removed"
-msgstr "过渡节点"
+msgstr "转�已移除"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Set Start Node (Autoplay)"
-msgstr ""
+msgstr "设置开始节点（自动播放）"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid ""
@@ -4762,8 +4734,34 @@ msgid "Layout"
 msgstr "布局"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert keys."
-msgstr "�入帧。"
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "�入关键帧（ 创建轨�）"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "�入关键帧"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Insert Key (Existing Tracks)"
@@ -4835,6 +4833,52 @@ msgstr "编辑多边形（移除顶点）"
 msgid "Set Handle"
 msgstr "设置处�程�"
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "加载图片出错:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "图片中没有�明度> 128的�素..."
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr "加载Emission Mask（�射�蔽）"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr "清除Emission Mask（�射�蔽）"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "ç²’å­�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr "生�顶点计数:"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr "�光�罩（mask）"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr "从�素��"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr "�光颜色"
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr "CPUç²’å­�"
@@ -4919,7 +4963,7 @@ msgstr "渲染GI Probe"
 
 #: editor/plugins/gradient_editor_plugin.cpp
 msgid "Gradient Edited"
-msgstr ""
+msgstr "��编辑"
 
 #: editor/plugins/item_list_editor_plugin.cpp
 msgid "Item %d"
@@ -5185,52 +5229,15 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr "�以设置ParticlesMaterial 点的�质"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr "加载图片出错:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr "图片中没有�明度> 128的�素..."
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr "加载Emission Mask（�射�蔽）"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr "清除Emission Mask（�射�蔽）"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Convert to CPUParticles"
 msgstr "转�为 CPU粒�"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr "ç²’å­�"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr "生�顶点计数:"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr "生�时间（秒）:"
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr "�光�罩（mask）"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr "从�素��"
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr "�光颜色"
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr "���有区域�"
@@ -5734,7 +5741,8 @@ msgid "Save Theme As..."
 msgstr "主题�存为..."
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+#, fuzzy
+msgid "%s Class Reference"
 msgstr " 类引用"
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -5866,11 +5874,11 @@ msgstr "打开Godot在线文档"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "请求文档"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "通过�供�馈�助改进Godot文档"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
@@ -6068,14 +6076,12 @@ msgid "This skeleton has no bones, create some children Bone2D nodes."
 msgstr "该骨架没有骨骼绑定，请创建一些 Bone2D 骨骼�节点。"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
-#, fuzzy
 msgid "Create Rest Pose from Bones"
-msgstr "制作放�姿势（从骨骼）"
+msgstr "从骨骼创建休闲姿势"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
-#, fuzzy
 msgid "Set Rest Pose to Bones"
-msgstr "制作放�姿势（从骨骼）"
+msgstr "将休闲姿势设置为骨骼"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Skeleton2D"
@@ -6230,9 +6236,8 @@ msgid "Rear"
 msgstr "�方"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Align with View"
-msgstr "与视图对�"
+msgstr "对�视图"
 
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "No parent to instance a child at."
@@ -6327,6 +6332,8 @@ msgid ""
 "Note: The FPS value displayed is the editor's framerate.\n"
 "It cannot be used as a reliable indication of in-game performance."
 msgstr ""
+"注�：显示的FPS值是编辑器的帧速率。\n"
+"它�能用于表现游�中的实际性能。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Rotation Locked"
@@ -6337,9 +6344,8 @@ msgid "XForm Dialog"
 msgstr "XForm对�框"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Snap Nodes To Floor"
-msgstr "�附到地�"
+msgstr "将节点�附至地�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Select Mode (Q)"
@@ -6561,6 +6567,26 @@ msgid "Nameless gizmo"
 msgstr "未命�的Gizmo"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "创建 2D 网格"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "创建3D多边形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "创建碰撞多边形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "添加�光多边形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
 msgstr "Sprite 是空的�"
 
@@ -6573,16 +6599,43 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr "无效的几何体，无法使用网格替�。"
 
 #: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "无效的几何体，无法使用网格替�。"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "无效的几何体，无法使用网格替�。"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "无效的几何体，无法使用网格替�。"
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr "Sprite 精�"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Convert to 2D Mesh"
+#, fuzzy
+msgid "Convert to Mesh2D"
 msgstr "转�为 2D 网格"
 
 #: editor/plugins/sprite_editor_plugin.cpp
-msgid "Create 2D Mesh"
-msgstr "创建 2D 网格"
+#, fuzzy
+msgid "Convert to Polygon2D"
+msgstr "移动多边形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "创建碰撞多边形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "添加�光多边形"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -6934,22 +6987,20 @@ msgid "Merge from Scene"
 msgstr "从场景中�并"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Next Coordinate"
-msgstr "下一层"
+msgstr "下一个�标"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the next shape, subtile, or Tile."
-msgstr ""
+msgstr "选择下一个形状，�砖�，或砖�。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Previous Coordinate"
-msgstr "上一个层"
+msgstr "上一个�标"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the previous shape, subtile, or Tile."
-msgstr ""
+msgstr "选择上一个形状，�砖�，或砖�。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Copy bitmask."
@@ -6964,9 +7015,8 @@ msgid "Erase bitmask."
 msgstr "擦除�掩�。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Create a new rectangle."
-msgstr "创建新节点。"
+msgstr "新建一个四边形。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Create a new polygon."
@@ -7106,14 +7156,12 @@ msgid "Clear Tile Bitmask"
 msgstr "清除�掩�"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Make Polygon Concave"
-msgstr "移动多边形"
+msgstr "使多边形塌陷"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Make Polygon Convex"
-msgstr "移动多边形"
+msgstr "使多边形凸起"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Remove Tile"
@@ -7157,26 +7205,28 @@ msgstr "瓦片集"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Set Uniform Name"
-msgstr ""
+msgstr "设置统一�称"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Set Input Default Port"
-msgstr "将默认设置为 '%s'"
+msgstr "设置输入默认端�"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Add Node to Visual Shader"
-msgstr "�视�色器"
+msgstr "将节点添加到�视�色器"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Duplicate Nodes"
 msgstr "�制节点"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "删除节点"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
-msgstr ""
+msgstr "�视�色器输入类型已更改"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Vertex"
@@ -7195,14 +7245,12 @@ msgid "VisualShader"
 msgstr "�视�色器"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Edit Visual Property"
-msgstr "编辑�贴优先级"
+msgstr "编辑�视属性"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Visual Shader Mode Changed"
-msgstr "�色器�更"
+msgstr "�视�色器模�已更改"
 
 #: editor/project_export.cpp
 msgid "Runnable"
@@ -7221,6 +7269,8 @@ msgid ""
 "Failed to export the project for platform '%s'.\n"
 "Export templates seem to be missing or invalid."
 msgstr ""
+"无法导出平�'％s'的项目。\n"
+"导出模�似乎丢失或无效。"
 
 #: editor/project_export.cpp
 msgid ""
@@ -7228,6 +7278,8 @@ msgid ""
 "This might be due to a configuration issue in the export preset or your "
 "export settings."
 msgstr ""
+"无法导出平�'％s'的项目。\n"
+"�能由于导出预设或导出设置内的�置有问题。"
 
 #: editor/project_export.cpp
 msgid "Release"
@@ -7238,9 +7290,8 @@ msgid "Exporting All"
 msgstr "全部导出"
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid "The given export path doesn't exist:"
-msgstr "路径�存在。"
+msgstr "指定导出路径�存在："
 
 #: editor/project_export.cpp
 msgid "Export templates for this platform are missing/corrupted:"
@@ -8255,9 +8306,8 @@ msgid "Instantiated scenes can't become root"
 msgstr "实例化的场景�能�为根节点"
 
 #: editor/scene_tree_dock.cpp
-#, fuzzy
 msgid "Make node as Root"
-msgstr "创建场景根节点"
+msgstr "将节点设置为根节点"
 
 #: editor/scene_tree_dock.cpp
 msgid "Delete Node(s)?"
@@ -8294,9 +8344,8 @@ msgid "Make Local"
 msgstr "使用本地"
 
 #: editor/scene_tree_dock.cpp
-#, fuzzy
 msgid "New Scene Root"
-msgstr "创建场景根节点"
+msgstr "新场景根"
 
 #: editor/scene_tree_dock.cpp
 msgid "Create Root Node:"
@@ -8361,10 +8410,6 @@ msgid "Open documentation"
 msgstr "打开Godot文档"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr "删除节点"
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr "添加�节点"
 
@@ -8723,19 +8768,16 @@ msgid "Set From Tree"
 msgstr "从场景树设置"
 
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Erase Shortcut"
-msgstr "�出"
+msgstr "清除快�方�"
 
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Restore Shortcut"
-msgstr "快�键"
+msgstr "��快�方�"
 
 #: editor/settings_config_dialog.cpp
-#, fuzzy
 msgid "Change Shortcut"
-msgstr "编辑锚点"
+msgstr "更改快�方�"
 
 #: editor/settings_config_dialog.cpp
 msgid "Shortcuts"
@@ -9321,9 +9363,8 @@ msgid "Change Input Value"
 msgstr "更改输入值"
 
 #: modules/visual_script/visual_script_editor.cpp
-#, fuzzy
 msgid "Resize Comment"
-msgstr "调整 CanvasItem 尺寸"
+msgstr "调整注释尺寸"
 
 #: modules/visual_script/visual_script_editor.cpp
 msgid "Can't copy the function node."
@@ -9878,7 +9919,7 @@ msgstr ""
 msgid ""
 "Plane shapes don't work well and will be removed in future versions. Please "
 "don't use them."
-msgstr ""
+msgstr "平�形状无法正常工作，未�版本将被删除。请勿使用。"
 
 #: scene/3d/cpu_particles.cpp
 msgid "Nothing is visible because no mesh has been assigned."
@@ -9899,6 +9940,8 @@ msgid ""
 "GIProbes are not supported by the GLES2 video driver.\n"
 "Use a BakedLightmap instead."
 msgstr ""
+"GLES2视频驱动程��支�全局光照探测器。\n"
+"请改用已烘焙�光贴图。"
 
 #: scene/3d/navigation_mesh.cpp
 msgid "A NavigationMesh resource must be set or created for this node to work."
@@ -10065,6 +10108,8 @@ msgid ""
 "If you dont't intend to add a script, then please use a plain 'Control' node "
 "instead."
 msgstr ""
+"除�在脚本内�置其�项的放置行为，�则容器本身没有用处。\n"
+"如果您�打算添加脚本，请使用简�的“控件�节点。"
 
 #: scene/gui/dialogs.cpp
 msgid "Alert!"
@@ -10075,9 +10120,8 @@ msgid "Please Confirm..."
 msgstr "请确认..."
 
 #: scene/gui/file_dialog.cpp
-#, fuzzy
 msgid "Go to parent folder."
-msgstr "转到上层文件夹"
+msgstr "转到父文件夹。"
 
 #: scene/gui/popup.cpp
 msgid ""
@@ -10158,12 +10202,15 @@ msgstr "对uniform的赋值。"
 msgid "Varyings can only be assigned in vertex function."
 msgstr "���能在顶点函数中指定。"
 
+#~ msgid "Snap (s): "
+#~ msgstr "�附： "
+
+#~ msgid "Insert keys."
+#~ msgstr "�入帧。"
+
 #~ msgid "Instance the selected scene(s) as child of the selected node."
 #~ msgstr "将选中的场景实例为选中节点的�节点。"
 
-#~ msgid "FPS"
-#~ msgstr "帧数"
-
 #~ msgid "Warnings:"
 #~ msgstr "警告："
 
@@ -11687,9 +11734,6 @@ msgstr "���能在顶点函数中指定。"
 #~ msgid "Cannot go into subdir:"
 #~ msgstr "无法打开目录:"
 
-#~ msgid "Insert Keys (Ins)"
-#~ msgstr "�入关键帧（ 创建轨�）"
-
 #~ msgid "Perspective (Num5)"
 #~ msgstr "�视（Num5）"
 
diff --git a/editor/translations/zh_HK.po b/editor/translations/zh_HK.po
index 2abca01297..45b43c3ce6 100644
--- a/editor/translations/zh_HK.po
+++ b/editor/translations/zh_HK.po
@@ -2,15 +2,14 @@
 # Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.
 # Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)
 # This file is distributed under the same license as the Godot source code.
-#
 # Wesley (zx-wt) <ZX_WT@ymail.com>, 2016-2017.
-#
+# cnieFIT <dtotncq@gmail.com>, 2019.
 msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2018-12-13 14:44+0100\n"
-"Last-Translator: zx-wt <ZX_WT@ymail.com>\n"
+"PO-Revision-Date: 2019-04-10 00:46+0000\n"
+"Last-Translator: cnieFIT <dtotncq@gmail.com>\n"
 "Language-Team: Chinese (Hong Kong) <https://hosted.weblate.org/projects/"
 "godot-engine/godot/zh_Hant_HK/>\n"
 "Language: zh_HK\n"
@@ -18,7 +17,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Poedit 2.2\n"
+"X-Generator: Weblate 3.6-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -447,7 +446,7 @@ msgstr ""
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "�擇模�"
 
 #: editor/animation_track_editor.cpp
@@ -455,6 +454,14 @@ msgstr "�擇模�"
 msgid "Animation step value."
 msgstr "新增動畫"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -3966,6 +3973,11 @@ msgid "Delete Node"
 msgstr "��"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "（�）顯示最愛"
@@ -4962,8 +4974,33 @@ msgid "Layout"
 msgstr "儲存佈局"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Insert keys (based on mask)."
+msgstr "動��入關�幀？"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
+msgid "Auto Insert Key"
 msgstr "動��入關�幀？"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
@@ -5035,6 +5072,52 @@ msgstr ""
 msgid "Set Handle"
 msgstr ""
 
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
+msgstr ""
+
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
 msgstr ""
@@ -5392,22 +5475,6 @@ msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5415,30 +5482,9 @@ msgstr "轉為..."
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
 msgstr ""
 
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
-
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
 msgstr ""
@@ -5970,7 +6016,7 @@ msgid "Save Theme As..."
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
+msgid "%s Class Reference"
 msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
@@ -6550,9 +6596,8 @@ msgid "Audio Listener"
 msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Doppler Enable"
-msgstr "啟用"
+msgstr "啟用多普拉效應"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Cinematic Preview"
@@ -6829,6 +6874,26 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
+msgid "Create Mesh2D"
+msgstr "新增"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "縮放selection"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "縮放selection"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "新增資料夾"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
 msgid "Sprite is empty!"
 msgstr "路徑為空"
 
@@ -6841,18 +6906,39 @@ msgid "Invalid geometry, can't replace by mesh."
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create collision polygon."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Invalid geometry, can't create light occluder."
+msgstr ""
+
+#: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
 msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
+msgid "Convert to Mesh2D"
 msgstr "轉為..."
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "新增"
+msgid "Convert to Polygon2D"
+msgstr "轉為..."
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "縮放selection"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+msgid "Create LightOccluder2D Sibling"
+msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
@@ -7469,6 +7555,11 @@ msgid "Duplicate Nodes"
 msgstr "複製動畫幀"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "��"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
 msgstr ""
 
@@ -8676,10 +8767,6 @@ msgid "Open documentation"
 msgstr "開啓最近的"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
diff --git a/editor/translations/zh_TW.po b/editor/translations/zh_TW.po
index b04a702467..6f858474a2 100644
--- a/editor/translations/zh_TW.po
+++ b/editor/translations/zh_TW.po
@@ -18,7 +18,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Godot Engine editor\n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2019-03-28 09:36+0000\n"
+"PO-Revision-Date: 2019-04-25 11:54+0000\n"
 "Last-Translator: cnieFIT <dtotncq@gmail.com>\n"
 "Language-Team: Chinese (Traditional) <https://hosted.weblate.org/projects/"
 "godot-engine/godot/zh_Hant/>\n"
@@ -27,7 +27,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Weblate 3.6-dev\n"
+"X-Generator: Weblate 3.7-dev\n"
 
 #: core/math/expression.cpp modules/gdscript/gdscript_functions.cpp
 #: modules/visual_script/visual_script_builtin_funcs.cpp
@@ -41,9 +41,8 @@ msgid "Not enough bytes for decoding bytes, or invalid format."
 msgstr "輸入的解碼字節�足�或為無效格�。"
 
 #: core/math/expression.cpp
-#, fuzzy
 msgid "Invalid input %i (not passed) in expression"
-msgstr "所輸入的 %i 於表��中無效"
+msgstr "�算�中的輸入 %i 無效 (未傳�)"
 
 #: core/math/expression.cpp
 msgid "self can't be used because instance is null (not passed)"
@@ -96,12 +95,12 @@ msgstr "刪除所�畫格"
 
 #: editor/animation_bezier_editor.cpp
 msgid "Add Bezier Point"
-msgstr ""
+msgstr "添加�塞爾點"
 
 #: editor/animation_bezier_editor.cpp
 #, fuzzy
 msgid "Move Bezier Points"
-msgstr "移除"
+msgstr "移動�塞爾點"
 
 #: editor/animation_bezier_editor.cpp editor/animation_track_editor.cpp
 msgid "Anim Duplicate Keys"
@@ -207,11 +206,11 @@ msgstr "更新模� (如何設置此屬性)"
 
 #: editor/animation_track_editor.cpp
 msgid "Interpolation Mode"
-msgstr ""
+msgstr "�值模�"
 
 #: editor/animation_track_editor.cpp
 msgid "Loop Wrap Mode (Interpolate end with beginning on loop)"
-msgstr ""
+msgstr "循環包裹模�（從循環開始�入��）"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -242,11 +241,11 @@ msgstr "觸發器"
 
 #: editor/animation_track_editor.cpp
 msgid "Capture"
-msgstr ""
+msgstr "��"
 
 #: editor/animation_track_editor.cpp
 msgid "Nearest"
-msgstr ""
+msgstr "最近的"
 
 #: editor/animation_track_editor.cpp editor/plugins/curve_editor_plugin.cpp
 #: editor/property_editor.cpp
@@ -378,11 +377,11 @@ msgstr "添加動畫軌"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a key."
-msgstr ""
+msgstr "軌�路徑無效, 因此無法添加�。"
 
 #: editor/animation_track_editor.cpp
 msgid "Track is not of type Spatial, can't insert key"
-msgstr ""
+msgstr "軌��是空間類型, �能�入�"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -396,7 +395,7 @@ msgstr "添加動畫軌"
 
 #: editor/animation_track_editor.cpp
 msgid "Track path is invalid, so can't add a method key."
-msgstr ""
+msgstr "跟蹤路徑無效, 因此無法添加方法�。"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -405,7 +404,7 @@ msgstr "動畫新增軌跡與按�"
 
 #: editor/animation_track_editor.cpp
 msgid "Method not found in object: "
-msgstr ""
+msgstr "在�象中找�到方法： "
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Move Keys"
@@ -413,7 +412,7 @@ msgstr "移動關�畫格"
 
 #: editor/animation_track_editor.cpp
 msgid "Clipboard is empty"
-msgstr ""
+msgstr "剪貼�為空"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -422,24 +421,24 @@ msgstr "貼上�數"
 
 #: editor/animation_track_editor.cpp
 msgid "Anim Scale Keys"
-msgstr ""
+msgstr "縮尺�"
 
 #: editor/animation_track_editor.cpp
 msgid ""
 "This option does not work for Bezier editing, as it's only a single track."
-msgstr ""
+msgstr "這個�項��用於�塞爾編輯，因為它�是一個單軌。"
 
 #: editor/animation_track_editor.cpp
 msgid "Only show tracks from nodes selected in tree."
-msgstr ""
+msgstr "僅顯示樹中所�節點的軌跡。"
 
 #: editor/animation_track_editor.cpp
 msgid "Group tracks by node or display them as plain list."
-msgstr ""
+msgstr "按節點�軌跡分組或將其顯示為普通清單。"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
-msgid "Snap (s): "
+msgid "Snap:"
 msgstr "步驟 :"
 
 #: editor/animation_track_editor.cpp
@@ -447,6 +446,14 @@ msgstr "步驟 :"
 msgid "Animation step value."
 msgstr "動畫空間。"
 
+#: editor/animation_track_editor.cpp
+msgid "Seconds"
+msgstr ""
+
+#: editor/animation_track_editor.cpp
+msgid "FPS"
+msgstr ""
+
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
@@ -454,7 +461,7 @@ msgstr "動畫空間。"
 #: editor/project_manager.cpp editor/project_settings_editor.cpp
 #: editor/property_editor.cpp modules/visual_script/visual_script_editor.cpp
 msgid "Edit"
-msgstr ""
+msgstr "編輯"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -507,11 +514,11 @@ msgstr "清除動畫"
 
 #: editor/animation_track_editor.cpp
 msgid "Pick the node that will be animated:"
-msgstr ""
+msgstr "�擇�設定動畫的節點："
 
 #: editor/animation_track_editor.cpp
 msgid "Use Bezier Curves"
-msgstr ""
+msgstr "使用�塞爾曲線"
 
 #: editor/animation_track_editor.cpp
 #, fuzzy
@@ -560,7 +567,7 @@ msgstr "縮放比例:"
 
 #: editor/animation_track_editor.cpp
 msgid "Select tracks to copy:"
-msgstr ""
+msgstr "�擇�複製的軌�："
 
 #: editor/animation_track_editor.cpp editor/editor_properties.cpp
 #: editor/plugins/animation_player_editor_plugin.cpp
@@ -568,7 +575,7 @@ msgstr ""
 #: editor/plugins/sprite_frames_editor_plugin.cpp editor/property_editor.cpp
 #: scene/gui/line_edit.cpp scene/gui/text_edit.cpp
 msgid "Copy"
-msgstr ""
+msgstr "複製"
 
 #: editor/animation_track_editor_plugins.cpp
 #, fuzzy
@@ -577,11 +584,11 @@ msgstr "添加動畫軌"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip Start Offset"
-msgstr ""
+msgstr "更改音訊軌�剪輯起始�移"
 
 #: editor/animation_track_editor_plugins.cpp
 msgid "Change Audio Track Clip End Offset"
-msgstr ""
+msgstr "更改音訊曲目剪輯���移"
 
 #: editor/array_property_edit.cpp
 msgid "Resize Array"
@@ -649,11 +656,11 @@ msgstr "�設縮放大�"
 
 #: editor/code_editor.cpp modules/mono/editor/mono_bottom_panel.cpp
 msgid "Warnings"
-msgstr ""
+msgstr "警告"
 
 #: editor/code_editor.cpp
 msgid "Line and column numbers."
-msgstr ""
+msgstr "行號和列號。"
 
 #: editor/connections_dialog.cpp
 msgid "Method in target Node must be specified!"
@@ -761,7 +768,7 @@ msgstr "連接..."
 
 #: editor/connections_dialog.cpp
 msgid "Are you sure you want to remove all connections from the \"%s\" signal?"
-msgstr ""
+msgstr "確定�從“%s�訊號中删除所有連接嗎？"
 
 #: editor/connections_dialog.cpp editor/editor_help.cpp editor/node_dock.cpp
 msgid "Signals"
@@ -769,7 +776,7 @@ msgstr "信號"
 
 #: editor/connections_dialog.cpp
 msgid "Are you sure you want to remove all connections from this signal?"
-msgstr ""
+msgstr "確定�删除此訊號的所有連接嗎？"
 
 #: editor/connections_dialog.cpp
 #, fuzzy
@@ -778,7 +785,7 @@ msgstr "æ–·ç·š"
 
 #: editor/connections_dialog.cpp
 msgid "Edit..."
-msgstr ""
+msgstr "編輯…"
 
 #: editor/connections_dialog.cpp
 #, fuzzy
@@ -839,8 +846,8 @@ msgid ""
 "Scene '%s' is currently being edited.\n"
 "Changes will not take effect unless reloaded."
 msgstr ""
-"場景 '%s' 已被變更\n"
-"�新載入�能使變更生效"
+"場景 '%s' 已被變更.\n"
+"�新載入�能使其生效."
 
 #: editor/dependency_editor.cpp
 msgid ""
@@ -950,7 +957,7 @@ msgstr "沒有明定�有者的資�："
 
 #: editor/dependency_editor.cpp editor/editor_node.cpp
 msgid "Orphan Resource Explorer"
-msgstr ""
+msgstr "孤立資料管�器"
 
 #: editor/dependency_editor.cpp
 msgid "Delete selected files?"
@@ -1276,11 +1283,11 @@ msgstr "�正確的�字。�字�能與�有的 engine class ���。"
 
 #: editor/editor_autoload_settings.cpp
 msgid "Invalid name. Must not collide with an existing buit-in type name."
-msgstr "�稱已存在, �能跟已經存在的內建類別�複"
+msgstr "無效�稱.�能與�有的內置類型�稱沖�."
 
 #: editor/editor_autoload_settings.cpp
 msgid "Invalid name. Must not collide with an existing global constant name."
-msgstr "�稱已存在, �能跟已經存在的全域變數�稱�複"
+msgstr "無效�稱.�能跟已經存在的全局常��稱�複."
 
 #: editor/editor_autoload_settings.cpp
 #, fuzzy
@@ -1316,15 +1323,15 @@ msgstr "�新排列 Autoload"
 
 #: editor/editor_autoload_settings.cpp
 msgid "Invalid Path."
-msgstr "無效的路徑"
+msgstr "無效的路徑."
 
 #: editor/editor_autoload_settings.cpp
 msgid "File does not exist."
-msgstr "檔案�存在"
+msgstr "檔案�存在."
 
 #: editor/editor_autoload_settings.cpp
 msgid "Not in resource path."
-msgstr "在資�路徑中找�到"
+msgstr "�在資�路徑中。"
 
 #: editor/editor_autoload_settings.cpp
 #, fuzzy
@@ -1394,7 +1401,7 @@ msgstr "�稱:"
 #: editor/editor_dir_dialog.cpp editor/editor_file_dialog.cpp
 #: editor/filesystem_dock.cpp scene/gui/file_dialog.cpp
 msgid "Could not create folder."
-msgstr "無法新增資料夾"
+msgstr "無法新增資料夾."
 
 #: editor/editor_dir_dialog.cpp
 msgid "Choose"
@@ -1410,7 +1417,7 @@ msgstr ""
 
 #: editor/editor_export.cpp
 msgid "Packing"
-msgstr ""
+msgstr "包�中"
 
 #: editor/editor_export.cpp
 msgid ""
@@ -1436,17 +1443,17 @@ msgstr ""
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
 #: platform/osx/export/export.cpp platform/uwp/export/export.cpp
 msgid "Custom debug template not found."
-msgstr ""
+msgstr "找�到自定義調試範本。"
 
 #: editor/editor_export.cpp platform/android/export/export.cpp
 #: platform/iphone/export/export.cpp platform/javascript/export/export.cpp
 #: platform/osx/export/export.cpp platform/uwp/export/export.cpp
 msgid "Custom release template not found."
-msgstr ""
+msgstr "找�到自定義發佈範本。"
 
 #: editor/editor_export.cpp platform/javascript/export/export.cpp
 msgid "Template file not found:"
-msgstr ""
+msgstr "找�到範本檔案："
 
 #: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
 msgid "Select Current Folder"
@@ -1546,15 +1553,15 @@ msgstr "切�模�"
 
 #: editor/editor_file_dialog.cpp
 msgid "Focus Path"
-msgstr ""
+msgstr "�焦路徑"
 
 #: editor/editor_file_dialog.cpp
 msgid "Move Favorite Up"
-msgstr ""
+msgstr "�上移動收�"
 
 #: editor/editor_file_dialog.cpp
 msgid "Move Favorite Down"
-msgstr ""
+msgstr "�下移動收�"
 
 #: editor/editor_file_dialog.cpp
 #, fuzzy
@@ -1578,11 +1585,11 @@ msgstr "無法新增資料夾"
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
 msgid "View items as a grid of thumbnails."
-msgstr ""
+msgstr "以縮略圖網格形�查看項目。"
 
 #: editor/editor_file_dialog.cpp editor/filesystem_dock.cpp
 msgid "View items as a list."
-msgstr ""
+msgstr "以清單形�查看項目。"
 
 #: editor/editor_file_dialog.cpp scene/gui/file_dialog.cpp
 msgid "Directories & Files:"
@@ -1604,7 +1611,7 @@ msgstr "必須使用有效的副檔�。"
 
 #: editor/editor_file_system.cpp
 msgid "ScanSources"
-msgstr ""
+msgstr "掃��"
 
 #: editor/editor_file_system.cpp
 msgid "(Re)Importing Assets"
@@ -1625,19 +1632,19 @@ msgstr "繼承:"
 
 #: editor/editor_help.cpp
 msgid "Inherited by:"
-msgstr ""
+msgstr "繼承："
 
 #: editor/editor_help.cpp
 msgid "Brief Description:"
-msgstr ""
+msgstr "簡�說明："
 
 #: editor/editor_help.cpp
 msgid "Properties"
-msgstr ""
+msgstr "性質"
 
 #: editor/editor_help.cpp
 msgid "Properties:"
-msgstr ""
+msgstr "效能："
 
 #: editor/editor_help.cpp
 msgid "Methods"
@@ -1664,15 +1671,15 @@ msgstr "訊號:"
 
 #: editor/editor_help.cpp
 msgid "Enumerations"
-msgstr ""
+msgstr "枚舉"
 
 #: editor/editor_help.cpp
 msgid "Enumerations:"
-msgstr ""
+msgstr "枚舉："
 
 #: editor/editor_help.cpp
 msgid "enum  "
-msgstr ""
+msgstr "枚舉  "
 
 #: editor/editor_help.cpp
 msgid "Constants"
@@ -1753,7 +1760,7 @@ msgstr "�代全部"
 
 #: editor/editor_help_search.cpp
 msgid "Classes Only"
-msgstr ""
+msgstr "僅�類"
 
 #: editor/editor_help_search.cpp
 #, fuzzy
@@ -1772,15 +1779,15 @@ msgstr "定數"
 
 #: editor/editor_help_search.cpp
 msgid "Properties Only"
-msgstr ""
+msgstr "僅屬性"
 
 #: editor/editor_help_search.cpp
 msgid "Theme Properties Only"
-msgstr ""
+msgstr "僅�主題屬性"
 
 #: editor/editor_help_search.cpp
 msgid "Member Type"
-msgstr ""
+msgstr "�員類型"
 
 #: editor/editor_help_search.cpp
 #, fuzzy
@@ -1789,11 +1796,11 @@ msgstr "Class:"
 
 #: editor/editor_inspector.cpp editor/project_settings_editor.cpp
 msgid "Property:"
-msgstr ""
+msgstr "屬性："
 
 #: editor/editor_inspector.cpp
 msgid "Set"
-msgstr ""
+msgstr "集�"
 
 #: editor/editor_inspector.cpp
 msgid "Set Multiple:"
@@ -1824,12 +1831,12 @@ msgstr "專案輸出失敗，錯誤代碼是 %d。"
 
 #: editor/editor_node.cpp
 msgid "Imported resources can't be saved."
-msgstr ""
+msgstr "無法�存導入的資�。"
 
 #: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
 #: scene/gui/dialogs.cpp
 msgid "OK"
-msgstr ""
+msgstr "確定"
 
 #: editor/editor_node.cpp editor/plugins/animation_player_editor_plugin.cpp
 msgid "Error saving resource!"
@@ -1839,7 +1846,7 @@ msgstr "儲存資�錯誤!"
 msgid ""
 "This resource can't be saved because it does not belong to the edited scene. "
 "Make it unique first."
-msgstr ""
+msgstr "無法�存此資�，因為它�屬於已編輯的場景。先讓它唯一。"
 
 #: editor/editor_node.cpp editor/plugins/animation_player_editor_plugin.cpp
 msgid "Save Resource As..."
@@ -1860,7 +1867,7 @@ msgstr "儲存中發生了錯誤。"
 
 #: editor/editor_node.cpp editor/plugins/script_editor_plugin.cpp
 msgid "Can't open '%s'. The file could have been moved or deleted."
-msgstr ""
+msgstr "無法打開“%s�。檔案�能已被移動或删除。"
 
 #: editor/editor_node.cpp
 msgid "Error while parsing '%s'."
@@ -1910,39 +1917,39 @@ msgstr ""
 
 #: editor/editor_node.cpp editor/scene_tree_dock.cpp
 msgid "Can't overwrite scene that is still open!"
-msgstr ""
+msgstr "無法覆蓋�處於打開狀態的場景�"
 
 #: editor/editor_node.cpp
 msgid "Can't load MeshLibrary for merging!"
-msgstr ""
+msgstr "無法加載��併的網格庫�"
 
 #: editor/editor_node.cpp
 msgid "Error saving MeshLibrary!"
-msgstr ""
+msgstr "�存MeshLibrary時出錯�"
 
 #: editor/editor_node.cpp
 msgid "Can't load TileSet for merging!"
-msgstr ""
+msgstr "無法加載Tileset進行�併�"
 
 #: editor/editor_node.cpp
 msgid "Error saving TileSet!"
-msgstr ""
+msgstr "�存tileset時出錯�"
 
 #: editor/editor_node.cpp
 msgid "Error trying to save layout!"
-msgstr ""
+msgstr "嘗試�存佈局時出錯�"
 
 #: editor/editor_node.cpp
 msgid "Default editor layout overridden."
-msgstr ""
+msgstr "覆蓋默�編輯器佈局。"
 
 #: editor/editor_node.cpp
 msgid "Layout name not found!"
-msgstr ""
+msgstr "找�到佈局�稱�"
 
 #: editor/editor_node.cpp
 msgid "Restored default layout to base settings."
-msgstr ""
+msgstr "已將默�佈局還原為基本設定。"
 
 #: editor/editor_node.cpp
 msgid ""
@@ -1950,6 +1957,8 @@ msgid ""
 "Please read the documentation relevant to importing scenes to better "
 "understand this workflow."
 msgstr ""
+"此資�屬於已導入的場景, 因此��編輯。\n"
+"請閱讀與導入場景相關的文檔, 以便更好地瞭解此工作�。"
 
 #: editor/editor_node.cpp
 msgid ""
@@ -1980,7 +1989,7 @@ msgstr ""
 
 #: editor/editor_node.cpp
 msgid "There is no defined scene to run."
-msgstr ""
+msgstr "沒有��行的已定義場景。"
 
 #: editor/editor_node.cpp
 msgid ""
@@ -2009,7 +2018,7 @@ msgstr "在�行場景�，請先存檔。"
 
 #: editor/editor_node.cpp
 msgid "Could not start subprocess!"
-msgstr "無法啟動�程�"
+msgstr "無法啟動�進程!"
 
 #: editor/editor_node.cpp
 msgid "Open Scene"
@@ -2017,15 +2026,15 @@ msgstr "開啟場景"
 
 #: editor/editor_node.cpp
 msgid "Open Base Scene"
-msgstr ""
+msgstr "打開基本場景"
 
 #: editor/editor_node.cpp
 msgid "Quick Open Scene..."
-msgstr "快速開啟場景"
+msgstr "快速開啟場景..."
 
 #: editor/editor_node.cpp
 msgid "Quick Open Script..."
-msgstr ""
+msgstr "快速打開腳本…"
 
 #: editor/editor_node.cpp
 #, fuzzy
@@ -2034,15 +2043,15 @@ msgstr "�存新檔"
 
 #: editor/editor_node.cpp
 msgid "Save changes to '%s' before closing?"
-msgstr ""
+msgstr "關閉�是��存�“%s�的更改？"
 
 #: editor/editor_node.cpp
 msgid "Saved %s modified resource(s)."
-msgstr ""
+msgstr "已�存%s個已修改的資�。"
 
 #: editor/editor_node.cpp
 msgid "A root node is required to save the scene."
-msgstr ""
+msgstr "�存場景需�根節點。"
 
 #: editor/editor_node.cpp
 msgid "Save Scene As..."
@@ -2066,7 +2075,7 @@ msgstr "在設置場景�，無法完�該指定�作。"
 
 #: editor/editor_node.cpp
 msgid "Export Mesh Library"
-msgstr ""
+msgstr "導出網格庫"
 
 #: editor/editor_node.cpp
 msgid "This operation can't be done without a root node."
@@ -2074,7 +2083,7 @@ msgstr "在設置根節點(root node)�，無法完�該指定�作。"
 
 #: editor/editor_node.cpp
 msgid "Export Tile Set"
-msgstr ""
+msgstr "導出�貼集"
 
 #: editor/editor_node.cpp
 msgid "This operation can't be done without a selected node."
@@ -2086,7 +2095,7 @@ msgstr "目�的場景尚未存檔，��開啟嗎？"
 
 #: editor/editor_node.cpp
 msgid "Can't reload a scene that was never saved."
-msgstr "無法�新載入未存檔的場景"
+msgstr "無法�新載入未存檔的場景."
 
 #: editor/editor_node.cpp
 msgid "Revert"
@@ -2518,7 +2527,7 @@ msgstr "暫�場景"
 
 #: editor/editor_node.cpp
 msgid "Stop the scene."
-msgstr "�止此場景"
+msgstr "�止此場景."
 
 #: editor/editor_node.cpp editor/editor_profiler.cpp
 msgid "Stop"
@@ -2679,32 +2688,32 @@ msgstr "æ›´æ–°"
 #: editor/editor_plugin_settings.cpp editor/plugin_config_dialog.cpp
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Version:"
-msgstr ""
+msgstr "版本："
 
 #: editor/editor_plugin_settings.cpp editor/plugin_config_dialog.cpp
 msgid "Author:"
-msgstr ""
+msgstr "作者："
 
 #: editor/editor_plugin_settings.cpp
 msgid "Status:"
-msgstr ""
+msgstr "狀態："
 
 #: editor/editor_plugin_settings.cpp
 msgid "Edit:"
-msgstr ""
+msgstr "編輯："
 
 #: editor/editor_profiler.cpp editor/plugins/animation_state_machine_editor.cpp
 #: editor/rename_dialog.cpp
 msgid "Start"
-msgstr ""
+msgstr "開始"
 
 #: editor/editor_profiler.cpp
 msgid "Measure:"
-msgstr ""
+msgstr "措施："
 
 #: editor/editor_profiler.cpp
 msgid "Frame Time (sec)"
-msgstr ""
+msgstr "幀時間 (秒)"
 
 #: editor/editor_profiler.cpp
 msgid "Average Time (sec)"
@@ -2712,7 +2721,7 @@ msgstr "平�時間 (秒)"
 
 #: editor/editor_profiler.cpp
 msgid "Frame %"
-msgstr ""
+msgstr "å¹€%"
 
 #: editor/editor_profiler.cpp
 msgid "Physics Frame %"
@@ -2724,7 +2733,7 @@ msgstr "時間："
 
 #: editor/editor_profiler.cpp
 msgid "Inclusive"
-msgstr ""
+msgstr "包容"
 
 #: editor/editor_profiler.cpp
 msgid "Self"
@@ -2752,7 +2761,7 @@ msgstr "層"
 
 #: editor/editor_properties.cpp
 msgid "Bit %d, value %d"
-msgstr ""
+msgstr "� %d, 值 %d"
 
 #: editor/editor_properties.cpp
 msgid "[Empty]"
@@ -2771,7 +2780,7 @@ msgstr "無效的路徑"
 msgid ""
 "The selected resource (%s) does not match any type expected for this "
 "property (%s)."
-msgstr ""
+msgstr "所�資�（%s）與此内容（%s）所需的任何類型都�匹�。"
 
 #: editor/editor_properties.cpp
 msgid ""
@@ -2832,7 +2841,7 @@ msgstr "相�性編輯器"
 
 #: editor/editor_properties.cpp editor/property_editor.cpp
 msgid "Selected node is not a Viewport!"
-msgstr ""
+msgstr "�定的節點�是視�!"
 
 #: editor/editor_properties_array_dict.cpp
 msgid "Size: "
@@ -2872,7 +2881,7 @@ msgstr ""
 
 #: editor/editor_run_script.cpp
 msgid "Write your logic in the _run() method."
-msgstr ""
+msgstr "將您的�輯寫在_run（）方法中。"
 
 #: editor/editor_run_script.cpp
 msgid "There is an edited scene already."
@@ -3121,11 +3130,11 @@ msgstr ""
 
 #: editor/filesystem_dock.cpp
 msgid "Cannot move/rename resources root."
-msgstr ""
+msgstr "無法移動/�命�資�根目錄。"
 
 #: editor/filesystem_dock.cpp
 msgid "Cannot move a folder into itself."
-msgstr ""
+msgstr "無法將資料夾移動到其自身。"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3144,19 +3153,19 @@ msgstr "場景缺少了�些資�以至於無法載入"
 
 #: editor/filesystem_dock.cpp editor/scene_tree_editor.cpp
 msgid "No name provided."
-msgstr ""
+msgstr "未�供�稱。"
 
 #: editor/filesystem_dock.cpp
 msgid "Provided name contains invalid characters"
-msgstr ""
+msgstr "�供的�稱包�無效字元"
 
 #: editor/filesystem_dock.cpp
 msgid "Name contains invalid characters."
-msgstr ""
+msgstr "�稱包�無效字元。"
 
 #: editor/filesystem_dock.cpp
 msgid "A file or folder with this name already exists."
-msgstr ""
+msgstr "具有此�稱的檔或資料夾已存在。"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3165,7 +3174,7 @@ msgstr "載入時發生錯誤:"
 
 #: editor/filesystem_dock.cpp
 msgid "Renaming folder:"
-msgstr ""
+msgstr "�命�資料夾:"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3174,7 +3183,7 @@ msgstr "載入時發生錯誤:"
 
 #: editor/filesystem_dock.cpp
 msgid "Duplicating folder:"
-msgstr ""
+msgstr "複製資料夾:"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3183,7 +3192,7 @@ msgstr "開啟場景"
 
 #: editor/filesystem_dock.cpp
 msgid "Instance"
-msgstr ""
+msgstr "實例"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3197,15 +3206,15 @@ msgstr "移除"
 
 #: editor/filesystem_dock.cpp
 msgid "Edit Dependencies..."
-msgstr ""
+msgstr "編輯�賴項…"
 
 #: editor/filesystem_dock.cpp
 msgid "View Owners..."
-msgstr ""
+msgstr "查看所有者…"
 
 #: editor/filesystem_dock.cpp editor/plugins/animation_player_editor_plugin.cpp
 msgid "Rename..."
-msgstr ""
+msgstr "�命�…"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3214,7 +3223,7 @@ msgstr "複製動畫關�畫格"
 
 #: editor/filesystem_dock.cpp
 msgid "Move To..."
-msgstr ""
+msgstr "移動到..。"
 
 #: editor/filesystem_dock.cpp editor/plugins/script_editor_plugin.cpp
 #, fuzzy
@@ -3228,7 +3237,7 @@ msgstr "�存資�為..."
 
 #: editor/filesystem_dock.cpp editor/script_editor_debugger.cpp
 msgid "Expand All"
-msgstr ""
+msgstr "展開所有"
 
 #: editor/filesystem_dock.cpp editor/script_editor_debugger.cpp
 #, fuzzy
@@ -3240,19 +3249,19 @@ msgstr "�代全部"
 #: editor/project_manager.cpp editor/rename_dialog.cpp
 #: editor/scene_tree_dock.cpp
 msgid "Rename"
-msgstr ""
+msgstr "�命�"
 
 #: editor/filesystem_dock.cpp
 msgid "Previous Directory"
-msgstr ""
+msgstr "上一個目錄"
 
 #: editor/filesystem_dock.cpp
 msgid "Next Directory"
-msgstr ""
+msgstr "下一個目錄"
 
 #: editor/filesystem_dock.cpp
 msgid "Re-Scan Filesystem"
-msgstr ""
+msgstr "�新掃�檔案系統"
 
 #: editor/filesystem_dock.cpp
 #, fuzzy
@@ -3268,23 +3277,23 @@ msgstr "�尋 Class"
 msgid ""
 "Scanning Files,\n"
 "Please Wait..."
-msgstr ""
+msgstr "正在掃�檔, 請�候..。"
 
 #: editor/filesystem_dock.cpp
 msgid "Move"
-msgstr ""
+msgstr "移動"
 
 #: editor/filesystem_dock.cpp
 msgid "There is already file or folder with the same name in this location."
-msgstr ""
+msgstr "此�置已存在��的檔案或資料夾。"
 
 #: editor/filesystem_dock.cpp
 msgid "Overwrite"
-msgstr ""
+msgstr "覆蓋"
 
 #: editor/filesystem_dock.cpp editor/plugins/script_editor_plugin.cpp
 msgid "Create Script"
-msgstr ""
+msgstr "創建腳本"
 
 #: editor/find_in_files.cpp
 #, fuzzy
@@ -3309,15 +3318,15 @@ msgstr "�濾器:"
 #: editor/find_in_files.cpp editor/plugins/script_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
 msgid "Find..."
-msgstr ""
+msgstr "尋找..."
 
 #: editor/find_in_files.cpp editor/plugins/script_text_editor.cpp
 msgid "Replace..."
-msgstr ""
+msgstr "替�…"
 
 #: editor/find_in_files.cpp editor/progress_dialog.cpp scene/gui/dialogs.cpp
 msgid "Cancel"
-msgstr ""
+msgstr "�消"
 
 #: editor/find_in_files.cpp
 #, fuzzy
@@ -3356,11 +3365,11 @@ msgstr "�能使用的�稱。"
 
 #: editor/groups_editor.cpp editor/node_dock.cpp
 msgid "Groups"
-msgstr ""
+msgstr "組"
 
 #: editor/groups_editor.cpp
 msgid "Nodes not in Group"
-msgstr ""
+msgstr "�在組中的節點"
 
 #: editor/groups_editor.cpp editor/scene_tree_dock.cpp
 #, fuzzy
@@ -3369,19 +3378,19 @@ msgstr "�濾檔案..."
 
 #: editor/groups_editor.cpp
 msgid "Nodes in Group"
-msgstr ""
+msgstr "組中的節點"
 
 #: editor/groups_editor.cpp
 msgid "Add to Group"
-msgstr ""
+msgstr "添加到組"
 
 #: editor/groups_editor.cpp
 msgid "Remove from Group"
-msgstr ""
+msgstr "從群組移除"
 
 #: editor/groups_editor.cpp
 msgid "Manage Groups"
-msgstr ""
+msgstr "管�組"
 
 #: editor/import/resource_importer_scene.cpp
 #, fuzzy
@@ -3390,104 +3399,104 @@ msgstr "更新場景"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Animations"
-msgstr ""
+msgstr "使用單�的動畫一�導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Materials"
-msgstr ""
+msgstr "使用單�的� 一�導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Objects"
-msgstr ""
+msgstr "使用單�的物件導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Objects+Materials"
-msgstr ""
+msgstr "使用單�的�象+�質導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Objects+Animations"
-msgstr ""
+msgstr "使用單�的�象+動畫導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Materials+Animations"
-msgstr ""
+msgstr "使用單�的�質+動畫導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import with Separate Objects+Materials+Animations"
-msgstr ""
+msgstr "使用單�的�象+�質+動畫導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import as Multiple Scenes"
-msgstr ""
+msgstr "作為多個場景導入"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Import as Multiple Scenes+Materials"
-msgstr ""
+msgstr "導入為多個場景+�質"
 
 #: editor/import/resource_importer_scene.cpp
 #: editor/plugins/mesh_library_editor_plugin.cpp
 msgid "Import Scene"
-msgstr ""
+msgstr "導入場景"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Importing Scene..."
-msgstr ""
+msgstr "正在導入場景…"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Generating Lightmaps"
-msgstr ""
+msgstr "生�光照圖"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Generating for Mesh: "
-msgstr ""
+msgstr "為網格生�： "
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Running Custom Script..."
-msgstr ""
+msgstr "正在�行自定義腳本…"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Couldn't load post-import script:"
-msgstr ""
+msgstr "無法加載導入後腳本："
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Invalid/broken script for post-import (check console):"
-msgstr ""
+msgstr "導入後腳本無效/已�壞（檢查控制�）："
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Error running post-import script:"
-msgstr ""
+msgstr "�行導入後腳本時出錯:"
 
 #: editor/import/resource_importer_scene.cpp
 msgid "Saving..."
-msgstr ""
+msgstr "儲存中……"
 
 #: editor/import_dock.cpp
 msgid "Set as Default for '%s'"
-msgstr ""
+msgstr "設定為“%s�的�設值"
 
 #: editor/import_dock.cpp
 msgid "Clear Default for '%s'"
-msgstr ""
+msgstr "清除“%s�的�設值"
 
 #: editor/import_dock.cpp
 msgid " Files"
-msgstr ""
+msgstr " 資料夾"
 
 #: editor/import_dock.cpp
 msgid "Import As:"
-msgstr ""
+msgstr "導入為:"
 
 #: editor/import_dock.cpp editor/property_editor.cpp
 msgid "Preset..."
-msgstr ""
+msgstr "�設。。。"
 
 #: editor/import_dock.cpp
 msgid "Reimport"
-msgstr ""
+msgstr "�新導入"
 
 #: editor/import_dock.cpp
 msgid "Save scenes, re-import and restart"
-msgstr ""
+msgstr "�存場景，�新導入並�新啟動"
 
 #: editor/import_dock.cpp
 msgid "Changing the type of an imported file requires editor restart."
@@ -3500,7 +3509,7 @@ msgstr ""
 
 #: editor/inspector_dock.cpp
 msgid "Failed to load resource."
-msgstr ""
+msgstr "載入資�失敗。"
 
 #: editor/inspector_dock.cpp
 #, fuzzy
@@ -3515,7 +3524,7 @@ msgstr "展開所有屬性"
 #: editor/inspector_dock.cpp editor/plugins/animation_player_editor_plugin.cpp
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Save As..."
-msgstr ""
+msgstr "�存為..。"
 
 #: editor/inspector_dock.cpp
 msgid "Copy Params"
@@ -3536,11 +3545,11 @@ msgstr "複製資�"
 
 #: editor/inspector_dock.cpp
 msgid "Make Built-In"
-msgstr ""
+msgstr "內置"
 
 #: editor/inspector_dock.cpp
 msgid "Make Sub-Resources Unique"
-msgstr ""
+msgstr "使�資�唯一"
 
 #: editor/inspector_dock.cpp
 msgid "Open in Help"
@@ -3548,31 +3557,31 @@ msgstr "在幫助界�中開啟"
 
 #: editor/inspector_dock.cpp
 msgid "Create a new resource in memory and edit it."
-msgstr ""
+msgstr "在記憶體中創建一個新資�並�其進行編輯。"
 
 #: editor/inspector_dock.cpp
 msgid "Load an existing resource from disk and edit it."
-msgstr ""
+msgstr "從�片加載�有資�並�其進行編輯。"
 
 #: editor/inspector_dock.cpp
 msgid "Save the currently edited resource."
-msgstr ""
+msgstr "�存當�編輯的資�。"
 
 #: editor/inspector_dock.cpp
 msgid "Go to the previous edited object in history."
-msgstr ""
+msgstr "轉到歷�記錄中以�編輯的�象。"
 
 #: editor/inspector_dock.cpp
 msgid "Go to the next edited object in history."
-msgstr ""
+msgstr "轉到歷�記錄中的下一個編輯�象。"
 
 #: editor/inspector_dock.cpp
 msgid "History of recently edited objects."
-msgstr ""
+msgstr "最近編輯�象的歷�記錄。"
 
 #: editor/inspector_dock.cpp
 msgid "Object properties."
-msgstr ""
+msgstr "�象内容。"
 
 #: editor/inspector_dock.cpp
 #, fuzzy
@@ -3581,19 +3590,19 @@ msgstr "�濾檔案..."
 
 #: editor/inspector_dock.cpp
 msgid "Changes may be lost!"
-msgstr ""
+msgstr "更改�能會丟失!"
 
 #: editor/multi_node_edit.cpp
 msgid "MultiNode Set"
-msgstr ""
+msgstr "多節點集"
 
 #: editor/node_dock.cpp
 msgid "Select a Node to edit Signals and Groups."
-msgstr ""
+msgstr "�擇�編輯訊號和組的節點。"
 
 #: editor/plugin_config_dialog.cpp
 msgid "Edit a Plugin"
-msgstr ""
+msgstr "編輯挿件"
 
 #: editor/plugin_config_dialog.cpp
 #, fuzzy
@@ -3602,23 +3611,23 @@ msgstr "新增"
 
 #: editor/plugin_config_dialog.cpp
 msgid "Plugin Name:"
-msgstr ""
+msgstr "挿件�稱："
 
 #: editor/plugin_config_dialog.cpp
 msgid "Subfolder:"
-msgstr ""
+msgstr "�資料夾:"
 
 #: editor/plugin_config_dialog.cpp
 msgid "Language:"
-msgstr ""
+msgstr "語言："
 
 #: editor/plugin_config_dialog.cpp
 msgid "Script Name:"
-msgstr ""
+msgstr "腳本�稱："
 
 #: editor/plugin_config_dialog.cpp
 msgid "Activate now?"
-msgstr ""
+msgstr "�在啟動？"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
@@ -3653,11 +3662,11 @@ msgstr "新增資料夾"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 msgid "Insert Point"
-msgstr ""
+msgstr "�入點"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 msgid "Edit Polygon (Remove Point)"
-msgstr ""
+msgstr "編輯多邊形 (刪除點)"
 
 #: editor/plugins/abstract_polygon_2d_editor.cpp
 #, fuzzy
@@ -3670,7 +3679,7 @@ msgstr "移除"
 #: editor/plugins/animation_state_machine_editor.cpp
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Add Animation"
-msgstr ""
+msgstr "添加動畫"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3688,17 +3697,17 @@ msgstr "移除"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Change BlendSpace1D Limits"
-msgstr ""
+msgstr "更改 BlendSpace1D �制"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Change BlendSpace1D Labels"
-msgstr ""
+msgstr "更改Blendspace1d標籤"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "This type of node can't be used. Only root nodes are allowed."
-msgstr ""
+msgstr "無法使用此類型的節點。��許根節點。"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3719,7 +3728,7 @@ msgstr "移除"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 msgid "Move BlendSpace1D Node Point"
-msgstr ""
+msgstr "移動 BlendSpace1D 節點點"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3729,11 +3738,13 @@ msgid ""
 "AnimationTree is inactive.\n"
 "Activate to enable playback, check node warnings if activation fails."
 msgstr ""
+"動畫樹處於�活動狀態。\n"
+"激活以啟用播放, 如果啟動失敗, 請檢查節點警告。"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Set the blending position within the space"
-msgstr ""
+msgstr "設置空間內的混��置"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3743,12 +3754,12 @@ msgstr ""
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp scene/gui/graph_edit.cpp
 msgid "Enable snap and show grid."
-msgstr ""
+msgstr "啟用��並顯示網格。"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Point"
-msgstr ""
+msgstr "點"
 
 #: editor/plugins/animation_blend_space_1d_editor.cpp
 #: editor/plugins/animation_blend_space_2d_editor.cpp
@@ -3770,11 +3781,11 @@ msgstr "添加動畫軌"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Change BlendSpace2D Limits"
-msgstr ""
+msgstr "更改Blendspace2d�制"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Change BlendSpace2D Labels"
-msgstr ""
+msgstr "更改Blendspace2d標籤"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 #, fuzzy
@@ -3783,15 +3794,15 @@ msgstr "移除"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Remove BlendSpace2D Triangle"
-msgstr ""
+msgstr "删除Blendspace2d三角形"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "BlendSpace2D does not belong to an AnimationTree node."
-msgstr ""
+msgstr "Blendspace2d�屬於AnimationTree節點。"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "No triangles exist, so no blending can take place."
-msgstr ""
+msgstr "�存在三角形, 因此�能進行混�。"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 #, fuzzy
@@ -3800,20 +3811,20 @@ msgstr "切�最愛"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Create triangles by connecting points."
-msgstr ""
+msgstr "通�連接點創建三角形。"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Erase points and triangles."
-msgstr ""
+msgstr "删除點和三角形。"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 msgid "Generate blend triangles automatically (instead of manually)"
-msgstr ""
+msgstr "自動生�混�三角形 (而�是手動生�)"
 
 #: editor/plugins/animation_blend_space_2d_editor.cpp
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend:"
-msgstr ""
+msgstr "混�："
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
@@ -3828,11 +3839,11 @@ msgstr "�濾檔案..."
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Output node can't be added to the blend tree."
-msgstr ""
+msgstr "無法將輸出節點添加到混�樹中。"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Add Node to BlendTree"
-msgstr ""
+msgstr "將節點添加到BlendTree"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3843,7 +3854,7 @@ msgstr "節點�稱:"
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Unable to connect, port may be in use or connection may be invalid."
-msgstr ""
+msgstr "無法連接，埠�能正在使用，或者連接�能無效。"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
@@ -3869,6 +3880,11 @@ msgid "Delete Node"
 msgstr "刪除"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
+#: editor/scene_tree_dock.cpp
+msgid "Delete Node(s)"
+msgstr ""
+
+#: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #, fuzzy
 msgid "Toggle Filter On/Off"
 msgstr "切�最愛"
@@ -3880,7 +3896,7 @@ msgstr "變更�頭尺寸"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "No animation player set, so unable to retrieve track names."
-msgstr ""
+msgstr "沒有設定動畫播放機，囙此無法檢索曲目�稱。"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Player path set is invalid, so unable to retrieve track names."
@@ -3902,7 +3918,7 @@ msgstr "節點�稱:"
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Add Node..."
-msgstr ""
+msgstr "添加節點..。"
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 #: editor/plugins/root_motion_editor_plugin.cpp
@@ -3912,32 +3928,32 @@ msgstr "�濾檔案..."
 
 #: editor/plugins/animation_blend_tree_editor_plugin.cpp
 msgid "Enable filtering"
-msgstr ""
+msgstr "啟用篩�"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Toggle Autoplay"
-msgstr ""
+msgstr "切�自動播放"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "New Animation Name:"
-msgstr ""
+msgstr "新動畫�稱:"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "New Anim"
-msgstr ""
+msgstr "新增動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Change Animation Name:"
-msgstr ""
+msgstr "更改動畫�稱:"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Delete Animation?"
-msgstr ""
+msgstr "刪除動畫？"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Remove Animation"
-msgstr ""
+msgstr "移除動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #, fuzzy
@@ -3952,23 +3968,23 @@ msgstr "Autoload「%s�已經存在!"
 #: editor/plugins/animation_player_editor_plugin.cpp
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Rename Animation"
-msgstr ""
+msgstr "�命�動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Blend Next Changed"
-msgstr ""
+msgstr "混�下一個更改"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Change Blend Time"
-msgstr ""
+msgstr "更改混�時間"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Load Animation"
-msgstr ""
+msgstr "載入動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Duplicate Animation"
-msgstr ""
+msgstr "複製動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #, fuzzy
@@ -3982,56 +3998,56 @@ msgstr "在資�路徑中找�到"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Pasted Animation"
-msgstr ""
+msgstr "粘貼的動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Paste Animation"
-msgstr ""
+msgstr "粘貼動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "No animation to edit!"
-msgstr ""
+msgstr "沒有�編輯的動畫!"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Play selected animation backwards from current pos. (A)"
-msgstr ""
+msgstr "從當��置�後播放所�動畫。（A）"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Play selected animation backwards from end. (Shift+A)"
-msgstr ""
+msgstr "從�尾�後播放�定的動畫。（Shift+a）"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Stop animation playback. (S)"
-msgstr ""
+msgstr "�止動畫回放。(S)"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Play selected animation from start. (Shift+D)"
-msgstr ""
+msgstr "從頭開始播放��中的動畫。(Shift+D)"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Play selected animation from current pos. (D)"
-msgstr ""
+msgstr "從當��置播放�定的動畫。（D）"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Animation position (in seconds)."
-msgstr ""
+msgstr "動畫�置（秒）。"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Scale animation playback globally for the node."
-msgstr ""
+msgstr "在全域範�內縮放節點的動畫播放。"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Animation Tools"
-msgstr ""
+msgstr "動畫工具"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Animation"
-msgstr ""
+msgstr "å‹•ç•«"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "New"
-msgstr ""
+msgstr "新增"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #, fuzzy
@@ -4045,19 +4061,19 @@ msgstr "開啟資料夾"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Display list of animations in player."
-msgstr ""
+msgstr "在播放機中顯示動畫清單。"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Autoplay on Load"
-msgstr ""
+msgstr "載入�自動播放"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Onion Skinning"
-msgstr ""
+msgstr "洋葱皮"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Enable Onion Skinning"
-msgstr ""
+msgstr "啟用洋葱皮"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #, fuzzy
@@ -4066,39 +4082,39 @@ msgstr "�述:"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Past"
-msgstr ""
+msgstr "跳�"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Future"
-msgstr ""
+msgstr "未來"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Depth"
-msgstr ""
+msgstr "深度"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "1 step"
-msgstr ""
+msgstr "1æ­¥"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "2 steps"
-msgstr ""
+msgstr "2æ­¥"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "3 steps"
-msgstr ""
+msgstr "3æ­¥"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Differences Only"
-msgstr ""
+msgstr "僅差異"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Force White Modulate"
-msgstr ""
+msgstr "強制白色調節"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Include Gizmos (3D)"
-msgstr ""
+msgstr "包括3D控制器"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Pin AnimationPlayer"
@@ -4106,11 +4122,11 @@ msgstr ""
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Create New Animation"
-msgstr ""
+msgstr "創建新動畫"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Animation Name:"
-msgstr ""
+msgstr "動畫�稱:"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 #: editor/plugins/resource_preloader_editor_plugin.cpp
@@ -4118,54 +4134,54 @@ msgstr ""
 #: editor/plugins/sprite_frames_editor_plugin.cpp editor/property_editor.cpp
 #: editor/script_create_dialog.cpp
 msgid "Error!"
-msgstr ""
+msgstr "錯誤�"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Blend Times:"
-msgstr ""
+msgstr "混�時間:"
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Next (Auto Queue):"
-msgstr ""
+msgstr "下一個（自動隊列）："
 
 #: editor/plugins/animation_player_editor_plugin.cpp
 msgid "Cross-Animation Blend Times"
-msgstr ""
+msgstr "跨動畫混�時間"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #, fuzzy
 msgid "Move Node"
-msgstr "移動 Autoload"
+msgstr "移動節點"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #, fuzzy
 msgid "Add Transition"
-msgstr "轉場"
+msgstr "添加轉�"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #: modules/visual_script/visual_script_editor.cpp
 msgid "Add Node"
-msgstr ""
+msgstr "添加節點"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "End"
-msgstr ""
+msgstr "��"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Immediate"
-msgstr ""
+msgstr "立�"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Sync"
-msgstr ""
+msgstr "�步"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "At End"
-msgstr ""
+msgstr "在末尾"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Travel"
-msgstr ""
+msgstr "行程"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Start and end nodes are needed for a sub-transition."
@@ -4179,12 +4195,12 @@ msgstr "在資�路徑中找�到"
 #: editor/plugins/animation_state_machine_editor.cpp
 #, fuzzy
 msgid "Node Removed"
-msgstr "已刪除:"
+msgstr "已刪除節點"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 #, fuzzy
 msgid "Transition Removed"
-msgstr "轉場"
+msgstr "已刪除轉�"
 
 #: editor/plugins/animation_state_machine_editor.cpp
 msgid "Set Start Node (Autoplay)"
@@ -4221,68 +4237,67 @@ msgid "Set the end animation. This is useful for sub-transitions."
 msgstr ""
 
 #: editor/plugins/animation_state_machine_editor.cpp
-#, fuzzy
 msgid "Transition: "
-msgstr "轉場"
+msgstr "轉場: "
 
 #: editor/plugins/animation_tree_editor_plugin.cpp
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "AnimationTree"
-msgstr ""
+msgstr "動畫樹"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "New name:"
-msgstr ""
+msgstr "新�稱:"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Scale:"
-msgstr ""
+msgstr "縮放:"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Fade In (s):"
-msgstr ""
+msgstr "淡入(秒)："
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Fade Out (s):"
-msgstr ""
+msgstr "淡出（秒）："
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend"
-msgstr ""
+msgstr "混�"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Mix"
-msgstr ""
+msgstr "混�"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Auto Restart:"
-msgstr ""
+msgstr "自動�新開始:"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Restart (s):"
-msgstr ""
+msgstr "�新開始(秒):"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Random Restart (s):"
-msgstr ""
+msgstr "隨機�新開始(秒):"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Start!"
-msgstr ""
+msgstr "開始�"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Amount:"
-msgstr ""
+msgstr "數�："
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend 0:"
-msgstr ""
+msgstr "混� 0:"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend 1:"
-msgstr ""
+msgstr "混� 1:"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "X-Fade Time (s):"
@@ -4290,112 +4305,112 @@ msgstr ""
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Current:"
-msgstr ""
+msgstr "當�："
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Add Input"
-msgstr ""
+msgstr "添加輸入"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Clear Auto-Advance"
-msgstr ""
+msgstr "清除Auto-Advance"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Set Auto-Advance"
-msgstr ""
+msgstr "設定自動�進"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Delete Input"
-msgstr ""
+msgstr "刪除輸入事件"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Animation tree is valid."
-msgstr ""
+msgstr "動畫樹有效。"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Animation tree is invalid."
-msgstr ""
+msgstr "動畫樹無效。"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Animation Node"
-msgstr ""
+msgstr "動畫節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "OneShot Node"
-msgstr ""
+msgstr "單項節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Mix Node"
-msgstr ""
+msgstr "混�節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend2 Node"
-msgstr ""
+msgstr "混�2 節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend3 Node"
-msgstr ""
+msgstr "混�3 節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Blend4 Node"
-msgstr ""
+msgstr "混�4 節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "TimeScale Node"
-msgstr ""
+msgstr "時間尺度節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "TimeSeek Node"
-msgstr ""
+msgstr "時間�索節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Transition Node"
-msgstr ""
+msgstr "轉場節點"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Import Animations..."
-msgstr ""
+msgstr "導入動畫…"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Edit Node Filters"
-msgstr ""
+msgstr "編輯節點篩�"
 
 #: editor/plugins/animation_tree_player_editor_plugin.cpp
 msgid "Filters..."
-msgstr ""
+msgstr "篩�…"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Contents:"
-msgstr ""
+msgstr "內容："
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 #, fuzzy
 msgid "View Files"
-msgstr "�濾檔案..."
+msgstr "查看檔案"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Can't resolve hostname:"
-msgstr ""
+msgstr "無法解�主機�稱:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Connection error, please try again."
-msgstr ""
+msgstr "連接錯誤, 請�試。"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Can't connect to host:"
-msgstr ""
+msgstr "無法連接到主機:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "No response from host:"
-msgstr ""
+msgstr "主機沒有響應："
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Request failed, return code:"
-msgstr ""
+msgstr "請求失敗, 返回代碼:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Request failed, too many redirects"
-msgstr ""
+msgstr "請求失敗, �定�次數太多"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Bad download hash, assuming file has been tampered with."
@@ -4403,58 +4418,56 @@ msgstr ""
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Expected:"
-msgstr ""
+msgstr "�期："
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Got:"
-msgstr ""
+msgstr "�得:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Failed sha256 hash check"
-msgstr ""
+msgstr "sha256哈希值檢查失敗"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Asset Download Error:"
-msgstr ""
+msgstr "資�下載錯誤:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
-#, fuzzy
 msgid "Downloading (%s / %s)..."
-msgstr "載入時發生錯誤:"
+msgstr "正在下載 (%s / %s)…"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 #, fuzzy
 msgid "Downloading..."
-msgstr "載入時發生錯誤:"
+msgstr "正在下載……"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Resolving..."
-msgstr ""
+msgstr "解�中…"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
-#, fuzzy
 msgid "Error making request"
-msgstr "載入場景時發生錯誤"
+msgstr "請求時發生錯誤"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Idle"
-msgstr ""
+msgstr "空閒"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Retry"
-msgstr ""
+msgstr "�試"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Download Error"
-msgstr ""
+msgstr "下載錯誤"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Download for this asset is already in progress!"
-msgstr ""
+msgstr "此資�文檔正在下載中!"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "First"
-msgstr ""
+msgstr "第一項"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 #, fuzzy
@@ -4467,7 +4480,7 @@ msgstr "下一個"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Last"
-msgstr ""
+msgstr "最後"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 #: modules/gdnative/gdnative_library_editor_plugin.cpp
@@ -4477,7 +4490,7 @@ msgstr "全部"
 #: editor/plugins/asset_library_editor_plugin.cpp
 #: editor/project_settings_editor.cpp
 msgid "Plugins"
-msgstr ""
+msgstr "挿件"
 
 #: editor/plugins/asset_library_editor_plugin.cpp editor/project_manager.cpp
 msgid "Sort:"
@@ -4494,11 +4507,11 @@ msgstr "類別:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Site:"
-msgstr ""
+msgstr "地�:"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Support..."
-msgstr ""
+msgstr "支�…"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Official"
@@ -4506,11 +4519,11 @@ msgstr "官方"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Testing"
-msgstr ""
+msgstr "測試"
 
 #: editor/plugins/asset_library_editor_plugin.cpp
 msgid "Assets ZIP File"
-msgstr ""
+msgstr "ZIP資�包"
 
 #: editor/plugins/baked_lightmap_editor_plugin.cpp
 msgid ""
@@ -4520,98 +4533,97 @@ msgid ""
 msgstr ""
 
 #: editor/plugins/baked_lightmap_editor_plugin.cpp
+#, fuzzy
 msgid ""
 "No meshes to bake. Make sure they contain an UV2 channel and that the 'Bake "
 "Light' flag is on."
-msgstr ""
+msgstr "沒有�供渲染的Meshes，請確�Mesh包�UV2通�並且勾�'Bake Light'�項"
 
 #: editor/plugins/baked_lightmap_editor_plugin.cpp
 msgid "Failed creating lightmap images, make sure path is writable."
-msgstr ""
+msgstr "創建光圖圖�失敗, 請確�路徑是�寫的。"
 
 #: editor/plugins/baked_lightmap_editor_plugin.cpp
-#, fuzzy
 msgid "Bake Lightmaps"
-msgstr "變更光��徑"
+msgstr "渲染光圖"
 
 #: editor/plugins/camera_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp editor/rename_dialog.cpp
 msgid "Preview"
-msgstr ""
+msgstr "�覽"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Configure Snap"
-msgstr ""
+msgstr "�置�附"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Grid Offset:"
-msgstr ""
+msgstr "網格�移�:"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Grid Step:"
-msgstr ""
+msgstr "網格大�:"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Rotation Offset:"
-msgstr ""
+msgstr "旋轉�移�:"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Rotation Step:"
-msgstr ""
+msgstr "旋轉步驟:"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Move vertical guide"
-msgstr ""
+msgstr "垂直移動尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Create new vertical guide"
-msgstr ""
+msgstr "創建新的垂直尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Remove vertical guide"
-msgstr ""
+msgstr "刪除垂直尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Move horizontal guide"
-msgstr ""
+msgstr "移動水平尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Create new horizontal guide"
-msgstr ""
+msgstr "創建新的水平尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-#, fuzzy
 msgid "Remove horizontal guide"
-msgstr "移除"
+msgstr "移除水平尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Create new horizontal and vertical guides"
-msgstr ""
+msgstr "創建新的水平和垂直尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
 msgid "Move pivot"
-msgstr "移除"
+msgstr "移動樞軸"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Rotate CanvasItem"
-msgstr ""
+msgstr "旋轉CanvasItem"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Move anchor"
-msgstr ""
+msgstr "移動錨點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Resize CanvasItem"
-msgstr ""
+msgstr "調整CanvasItem的大�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Scale CanvasItem"
-msgstr ""
+msgstr "縮放CanvasItem"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Move CanvasItem"
-msgstr ""
+msgstr "移動CanvasItem"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Presets for the anchors and margins values of a Control node."
@@ -4621,285 +4633,316 @@ msgstr ""
 msgid ""
 "Children of containers have their anchors and margins values overridden by "
 "their parent."
-msgstr ""
+msgstr "容器的�級的錨定值和�邊�值被其父級覆蓋。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Anchors only"
-msgstr ""
+msgstr "僅�錨點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Change Anchors and Margins"
-msgstr ""
+msgstr "改變錨點和邊�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Change Anchors"
-msgstr ""
+msgstr "改變錨點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Paste Pose"
-msgstr ""
+msgstr "粘貼姿勢"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid ""
 "Warning: Children of a container get their position and size determined only "
 "by their parent."
-msgstr ""
+msgstr "警告：容器的�級�能由其父級確定其�置和大�。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/texture_region_editor_plugin.cpp
 #: editor/plugins/tile_set_editor_plugin.cpp scene/gui/graph_edit.cpp
-#, fuzzy
 msgid "Zoom Reset"
-msgstr "縮�"
+msgstr "�置縮放"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Select Mode"
-msgstr ""
+msgstr "�擇模�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Drag: Rotate"
-msgstr ""
+msgstr "拖動: 旋轉"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Alt+Drag: Move"
-msgstr ""
+msgstr "Alt+Drag:移動"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Press 'v' to Change Pivot, 'Shift+v' to Drag Pivot (while moving)."
-msgstr ""
+msgstr "按 \"v\" 更改樞軸, \"Shift + v\" 以拖動樞軸 (移動時)。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Alt+RMB: Depth list selection"
-msgstr ""
+msgstr "Alt+滑鼠��:顯示鼠標點擊�置下所有的節點清單"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Move Mode"
-msgstr ""
+msgstr "移動模�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Rotate Mode"
-msgstr ""
+msgstr "旋轉模�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
 msgid "Scale Mode"
-msgstr "切�模�"
+msgstr "縮放模�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid ""
 "Show a list of all objects at the position clicked\n"
 "(same as Alt+RMB in select mode)."
-msgstr ""
+msgstr "在按一下的�置顯示所有物件的清單 (在�擇模�下與 Alt + RMB 相�)。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Click to change object's rotation pivot."
-msgstr ""
+msgstr "點擊以更改物件的旋轉樞軸。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Pan Mode"
-msgstr ""
+msgstr "平移模�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Toggle snapping."
-msgstr ""
+msgstr "切��附。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Use Snap"
-msgstr ""
+msgstr "使用�附"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snapping Options"
-msgstr ""
+msgstr "�附�項"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
 msgid "Snap to grid"
-msgstr ""
+msgstr "�附到網格"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
 msgid "Use Rotation Snap"
-msgstr ""
+msgstr "使用旋轉�附"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp
+#, fuzzy
 msgid "Configure Snap..."
-msgstr ""
+msgstr "�置�附…"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
 msgid "Snap Relative"
-msgstr ""
+msgstr "相��附"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
 msgid "Use Pixel Snap"
-msgstr ""
+msgstr "使用�素�附"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
 msgid "Smart snapping"
-msgstr ""
+msgstr "智慧�附"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snap to parent"
-msgstr ""
+msgstr "�附到父級節點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snap to node anchor"
-msgstr ""
+msgstr "�附到節點的錨點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snap to node sides"
-msgstr ""
+msgstr "��到節點邊"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snap to node center"
-msgstr ""
+msgstr "�附到節點的中心"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snap to other nodes"
-msgstr ""
+msgstr "�附到其他的節點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Snap to guides"
-msgstr ""
+msgstr "�附到尺標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Lock the selected object in place (can't be moved)."
-msgstr ""
+msgstr "將所�物件鎖定到中心 (無法移動)。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp
+#, fuzzy
 msgid "Unlock the selected object (can be moved)."
-msgstr ""
+msgstr "解鎖所�物件 (�以移動)。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Makes sure the object's children are not selectable."
-msgstr ""
+msgstr "確��象的�級���。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Restores the object's children's ability to be selected."
-msgstr ""
+msgstr "�復�象的�級�擇能力。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
 msgid "Skeleton Options"
-msgstr "單例"
+msgstr "骨架�項"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Bones"
-msgstr ""
+msgstr "顯示骨骼"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Make IK Chain"
-msgstr ""
+msgstr "製作IK�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Clear IK Chain"
-msgstr ""
+msgstr "清除IK�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Make Custom Bone(s) from Node(s)"
-msgstr ""
+msgstr "從節點製作自定義骨骼"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Clear Custom Bones"
-msgstr ""
+msgstr "清除自定義骨骼"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View"
-msgstr ""
+msgstr "視圖"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/polygon_2d_editor_plugin.cpp
 msgid "Show Grid"
-msgstr ""
+msgstr "顯示網格"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Helpers"
-msgstr ""
+msgstr "顯示輔助線"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Rulers"
-msgstr ""
+msgstr "顯示尺�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Guides"
-msgstr ""
+msgstr "顯示引導"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Origin"
-msgstr ""
+msgstr "顯示原點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Viewport"
-msgstr ""
+msgstr "顯示視�"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Show Group And Lock Icons"
-msgstr ""
+msgstr "顯示組和鎖定圖標"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Center Selection"
-msgstr ""
+msgstr "居中�擇"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Frame Selection"
-msgstr ""
+msgstr "幀�擇"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Layout"
+msgstr "佈局"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Translation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Rotation mask for inserting keys."
+msgstr ""
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Scale mask for inserting keys."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #, fuzzy
-msgid "Insert keys."
-msgstr "動畫新增按�"
+msgid "Insert keys (based on mask)."
+msgstr "�入幀 (�有軌�)"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
-msgid "Insert Key (Existing Tracks)"
+msgid ""
+"Auto insert keys when objects are translated, rotated on scaled (based on "
+"mask).\n"
+"Keys are only added to existing tracks, no new tracks will be created.\n"
+"Keys must be inserted manually for the first time."
 msgstr ""
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
+#, fuzzy
+msgid "Auto Insert Key"
+msgstr "新增關�畫格"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
+msgid "Insert Key (Existing Tracks)"
+msgstr "�入幀 (�有軌�)"
+
+#: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Copy Pose"
-msgstr ""
+msgstr "複製姿勢"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Clear Pose"
-msgstr ""
+msgstr "清除姿勢"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Multiply grid step by 2"
-msgstr ""
+msgstr "將網格步數乘以2"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Divide grid step by 2"
-msgstr ""
+msgstr "將網格步數除以2"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Add %s"
-msgstr ""
+msgstr "添加 %s"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Adding %s..."
-msgstr ""
+msgstr "添加 %s…"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Cannot instantiate multiple nodes without root."
-msgstr ""
+msgstr "無法具�化沒有根的多個節點。"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "Create Node"
-msgstr ""
+msgstr "創建節點"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "Error instancing scene from %s"
-msgstr ""
+msgstr "%s 中的具�化場景出錯"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid "Change default type"
-msgstr ""
+msgstr "更改�設類型"
 
 #: editor/plugins/canvas_item_editor_plugin.cpp
 msgid ""
@@ -4908,43 +4951,88 @@ msgid ""
 msgstr ""
 
 #: editor/plugins/collision_polygon_editor_plugin.cpp
-#, fuzzy
 msgid "Create Polygon3D"
-msgstr "新增資料夾"
+msgstr "創建3D多邊形"
 
 #: editor/plugins/collision_polygon_editor_plugin.cpp
 msgid "Edit Poly"
-msgstr ""
+msgstr "編輯多邊形"
 
 #: editor/plugins/collision_polygon_editor_plugin.cpp
 msgid "Edit Poly (Remove Point)"
-msgstr ""
+msgstr "編輯多邊形 (刪除頂點)"
 
 #: editor/plugins/collision_shape_2d_editor_plugin.cpp
 msgid "Set Handle"
+msgstr "設置控制程�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Error loading image:"
+msgstr "加載影�時出錯："
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "No pixels with transparency > 128 in image..."
+msgstr "影�中沒有�明度大於128的點數…"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Load Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Clear Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_editor_plugin.cpp
+msgid "Particles"
+msgstr "ç²’å­�"
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Generated Point Count:"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Mask"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Capture from Pixel"
+msgstr ""
+
+#: editor/plugins/cpu_particles_2d_editor_plugin.cpp
+#: editor/plugins/particles_2d_editor_plugin.cpp
+msgid "Emission Colors"
 msgstr ""
 
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 msgid "CPUParticles"
-msgstr ""
+msgstr "CPUç²’å­�"
 
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Create Emission Points From Mesh"
-msgstr ""
+msgstr "從網格創建發射點"
 
 #: editor/plugins/cpu_particles_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Create Emission Points From Node"
-msgstr ""
+msgstr "從節點創建發射點"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Flat0"
-msgstr ""
+msgstr "平�0"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Flat1"
-msgstr ""
+msgstr "平�1"
 
 #: editor/plugins/curve_editor_plugin.cpp
 #, fuzzy
@@ -4953,86 +5041,86 @@ msgstr "所有的�擇"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Ease out"
-msgstr ""
+msgstr "淡出"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Smoothstep"
-msgstr ""
+msgstr "平滑步長"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Modify Curve Point"
-msgstr ""
+msgstr "修改曲線點"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Modify Curve Tangent"
-msgstr ""
+msgstr "修改曲線切角"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Load Curve Preset"
-msgstr ""
+msgstr "加載曲線�設"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Add point"
-msgstr ""
+msgstr "添加點"
 
 #: editor/plugins/curve_editor_plugin.cpp
 #, fuzzy
 msgid "Remove point"
-msgstr "移除"
+msgstr "刪除點"
 
 #: editor/plugins/curve_editor_plugin.cpp
 #, fuzzy
 msgid "Left linear"
-msgstr "線性"
+msgstr "左線性"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Right linear"
-msgstr ""
+msgstr "�線性"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Load preset"
-msgstr ""
+msgstr "載入�設"
 
 #: editor/plugins/curve_editor_plugin.cpp
 #, fuzzy
 msgid "Remove Curve Point"
-msgstr "移除"
+msgstr "刪除曲線點"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Toggle Curve Linear Tangent"
-msgstr ""
+msgstr "切�曲線直線切線"
 
 #: editor/plugins/curve_editor_plugin.cpp
 msgid "Hold Shift to edit tangents individually"
-msgstr ""
+msgstr "按� Shift ��單�編輯切線"
 
 #: editor/plugins/gi_probe_editor_plugin.cpp
 msgid "Bake GI Probe"
-msgstr ""
+msgstr "渲染 GI Probe"
 
 #: editor/plugins/gradient_editor_plugin.cpp
 msgid "Gradient Edited"
-msgstr ""
+msgstr "漸變編輯"
 
 #: editor/plugins/item_list_editor_plugin.cpp
 msgid "Item %d"
-msgstr ""
+msgstr "é …ç›® %d"
 
 #: editor/plugins/item_list_editor_plugin.cpp
 msgid "Items"
-msgstr ""
+msgstr "é …ç›®"
 
 #: editor/plugins/item_list_editor_plugin.cpp
 msgid "Item List Editor"
-msgstr ""
+msgstr "項目清單編輯器"
 
 #: editor/plugins/light_occluder_2d_editor_plugin.cpp
 msgid "Create Occluder Polygon"
-msgstr ""
+msgstr "創建�光多邊形"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Mesh is empty!"
-msgstr ""
+msgstr "網格是空的�"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Static Trimesh Body"
@@ -5040,11 +5128,11 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Static Convex Body"
-msgstr ""
+msgstr "創建�態凸體"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "This doesn't work on scene root!"
-msgstr ""
+msgstr "這�場景根目錄�起作用�"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Trimesh Shape"
@@ -5052,15 +5140,15 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Convex Shape"
-msgstr ""
+msgstr "創建凸�形狀"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Navigation Mesh"
-msgstr ""
+msgstr "創建導航網格"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Contained Mesh is not of type ArrayMesh."
-msgstr ""
+msgstr "包�的網格�是ArrayMesh類型。"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "UV Unwrap failed, mesh may not be manifold?"
@@ -5068,7 +5156,7 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "No mesh to debug."
-msgstr ""
+msgstr "沒有�調試的網格。"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 #: editor/plugins/sprite_editor_plugin.cpp
@@ -5077,11 +5165,11 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "MeshInstance lacks a Mesh!"
-msgstr ""
+msgstr "網格實例缺少網格�"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Mesh has not surface to create outlines from!"
-msgstr ""
+msgstr "網格沒有表�來創建輪廓�"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Mesh primitive type is not PRIMITIVE_TRIANGLES!"
@@ -5093,11 +5181,11 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Outline"
-msgstr ""
+msgstr "創建輪廓"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Mesh"
-msgstr ""
+msgstr "網格"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Trimesh Static Body"
@@ -5105,7 +5193,7 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Convex Static Body"
-msgstr ""
+msgstr "創建凸形�態體"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Trimesh Collision Sibling"
@@ -5117,7 +5205,7 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Outline Mesh..."
-msgstr ""
+msgstr "創建輪廓網格…"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 #, fuzzy
@@ -5135,36 +5223,36 @@ msgstr ""
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Create Outline Mesh"
-msgstr ""
+msgstr "創建輪廓網格"
 
 #: editor/plugins/mesh_instance_editor_plugin.cpp
 msgid "Outline Size:"
-msgstr ""
+msgstr "輪廓尺寸："
 
 #: editor/plugins/mesh_library_editor_plugin.cpp
 msgid "Remove item %d?"
-msgstr ""
+msgstr "删除項目%d？"
 
 #: editor/plugins/mesh_library_editor_plugin.cpp
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Add Item"
-msgstr ""
+msgstr "添加項目"
 
 #: editor/plugins/mesh_library_editor_plugin.cpp
 msgid "Remove Selected Item"
-msgstr ""
+msgstr "删除所�項"
 
 #: editor/plugins/mesh_library_editor_plugin.cpp
 msgid "Import from Scene"
-msgstr ""
+msgstr "從場景導入"
 
 #: editor/plugins/mesh_library_editor_plugin.cpp
 msgid "Update from Scene"
-msgstr ""
+msgstr "從場景更新"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "No mesh source specified (and no MultiMesh set in node)."
-msgstr ""
+msgstr "未指定網格�（節點中沒有多網格集）。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "No mesh source specified (and MultiMesh contains no Mesh)."
@@ -5172,75 +5260,75 @@ msgstr ""
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Mesh source is invalid (invalid path)."
-msgstr ""
+msgstr "網格�無效（路徑無效）。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Mesh source is invalid (not a MeshInstance)."
-msgstr ""
+msgstr "網格�無效 (�是網格實例)。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Mesh source is invalid (contains no Mesh resource)."
-msgstr ""
+msgstr "網格�無效（�包�網格資�）。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "No surface source specified."
-msgstr ""
+msgstr "未指定表��。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Surface source is invalid (invalid path)."
-msgstr ""
+msgstr "表��無效（路徑無效）。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Surface source is invalid (no geometry)."
-msgstr ""
+msgstr "表��無效（沒有幾何圖形）。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Surface source is invalid (no faces)."
-msgstr ""
+msgstr "表��無效（沒有�）。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Parent has no solid faces to populate."
-msgstr ""
+msgstr "父級沒有�填充的實體�。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Couldn't map area."
-msgstr ""
+msgstr "無法映射�域。"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Select a Source Mesh:"
-msgstr ""
+msgstr "�擇�網格："
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Select a Target Surface:"
-msgstr ""
+msgstr "�擇目標曲�："
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Populate Surface"
-msgstr ""
+msgstr "填充曲�"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Populate MultiMesh"
-msgstr ""
+msgstr "填充多網格"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Target Surface:"
-msgstr ""
+msgstr "目標表�:"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Source Mesh:"
-msgstr ""
+msgstr "�網格:"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "X-Axis"
-msgstr ""
+msgstr "X 軸"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Y-Axis"
-msgstr ""
+msgstr "Y 軸"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Z-Axis"
-msgstr ""
+msgstr "Z 軸"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Mesh Up Axis:"
@@ -5248,54 +5336,38 @@ msgstr ""
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Random Rotation:"
-msgstr ""
+msgstr "隨機旋轉："
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Random Tilt:"
-msgstr ""
+msgstr "隨機傾斜："
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Random Scale:"
-msgstr ""
+msgstr "隨機縮放:"
 
 #: editor/plugins/multimesh_editor_plugin.cpp
 msgid "Populate"
-msgstr ""
+msgstr "å¡«å……"
 
 #: editor/plugins/navigation_polygon_editor_plugin.cpp
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Create Navigation Polygon"
-msgstr ""
+msgstr "創建導航多邊形"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 msgid "Generating Visibility Rect"
-msgstr ""
+msgstr "生��見性矩形"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 msgid "Generate Visibility Rect"
-msgstr ""
+msgstr "生��見性矩形"
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 msgid "Can only set point into a ParticlesMaterial process material"
 msgstr ""
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Error loading image:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "No pixels with transparency > 128 in image..."
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Load Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Clear Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
 #, fuzzy
 msgid "Convert to CPUParticles"
@@ -5303,33 +5375,12 @@ msgstr "轉��..."
 
 #: editor/plugins/particles_2d_editor_plugin.cpp
 #: editor/plugins/particles_editor_plugin.cpp
-msgid "Particles"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Generated Point Count:"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-#: editor/plugins/particles_editor_plugin.cpp
 msgid "Generation Time (sec):"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Mask"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Capture from Pixel"
-msgstr ""
-
-#: editor/plugins/particles_2d_editor_plugin.cpp
-msgid "Emission Colors"
-msgstr ""
+msgstr "生�時間 (秒):"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Faces contain no area!"
-msgstr ""
+msgstr "��包�任何�域�"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "No faces!"
@@ -5337,55 +5388,55 @@ msgstr ""
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Node does not contain geometry."
-msgstr ""
+msgstr "節點�包�幾何圖形。"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Node does not contain geometry (faces)."
-msgstr ""
+msgstr "節點�包�幾何圖形 (�)。"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Create Emitter"
-msgstr ""
+msgstr "創建發射器"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Emission Points:"
-msgstr ""
+msgstr "排放點："
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Surface Points"
-msgstr ""
+msgstr "表�點"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Surface Points+Normal (Directed)"
-msgstr ""
+msgstr "表�點 + 法線 (定�)"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Volume"
-msgstr ""
+msgstr "體�"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Emission Source: "
-msgstr ""
+msgstr "排放�： "
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "A processor material of type 'ParticlesMaterial' is required."
-msgstr ""
+msgstr "需�“顆粒資料�類型的處�器資料。"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Generating AABB"
-msgstr ""
+msgstr "生� AABB"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Generate Visibility AABB"
-msgstr ""
+msgstr "生��見性AABB"
 
 #: editor/plugins/particles_editor_plugin.cpp
 msgid "Generate AABB"
-msgstr ""
+msgstr "生� AABB"
 
 #: editor/plugins/path_2d_editor_plugin.cpp
 msgid "Remove Point from Curve"
-msgstr ""
+msgstr "從曲線中删除點"
 
 #: editor/plugins/path_2d_editor_plugin.cpp
 msgid "Remove Out-Control from Curve"
@@ -5809,14 +5860,13 @@ msgid "Error while saving theme."
 msgstr "儲存中發生了錯誤。"
 
 #: editor/plugins/script_editor_plugin.cpp
-#, fuzzy
 msgid "Error Saving"
-msgstr "載入時發生錯誤:"
+msgstr "�存錯誤"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
 msgid "Error importing theme."
-msgstr "讀�字體錯誤。"
+msgstr "導入主題時出錯。"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
@@ -5840,23 +5890,24 @@ msgstr "�存場景為..."
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Import Theme"
-msgstr ""
+msgstr "導入主題"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Error while saving theme"
-msgstr ""
+msgstr "�存主題時出錯"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Error saving"
-msgstr ""
+msgstr "�存錯誤"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Save Theme As..."
-msgstr ""
+msgstr "將主題�存為..。"
 
 #: editor/plugins/script_editor_plugin.cpp
-msgid " Class Reference"
-msgstr ""
+#, fuzzy
+msgid "%s Class Reference"
+msgstr " 類引用"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Toggle alphabetical sorting of the method list."
@@ -5871,42 +5922,42 @@ msgstr "排�:"
 #: editor/plugins/script_text_editor.cpp editor/scene_tree_dock.cpp
 #: modules/gdnative/gdnative_library_editor_plugin.cpp
 msgid "Move Up"
-msgstr ""
+msgstr "上移"
 
 #: editor/plugins/script_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp editor/scene_tree_dock.cpp
 #: modules/gdnative/gdnative_library_editor_plugin.cpp
 msgid "Move Down"
-msgstr ""
+msgstr "下移"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Next script"
-msgstr ""
+msgstr "下一個腳本"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Previous script"
-msgstr ""
+msgstr "上一個腳本"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "File"
-msgstr ""
+msgstr "檔案"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
 msgid "Open..."
-msgstr "é–‹å•Ÿ"
+msgstr "開啟…"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Save All"
-msgstr ""
+msgstr "全部�存"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Soft Reload Script"
-msgstr ""
+msgstr "軟�新加載腳本"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Copy Script Path"
-msgstr ""
+msgstr "複製腳本路徑"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
@@ -5920,99 +5971,99 @@ msgstr ""
 #: editor/plugins/script_editor_plugin.cpp
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Theme"
-msgstr ""
+msgstr "主題"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
 msgid "Import Theme..."
-msgstr "我知�了"
+msgstr "導入主題..。"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Reload Theme"
-msgstr ""
+msgstr "�新載入主題"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Save Theme"
-msgstr ""
+msgstr "�存主題"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Close Docs"
-msgstr ""
+msgstr "關閉檔案"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Close All"
-msgstr ""
+msgstr "全部關閉"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Close Other Tabs"
-msgstr ""
+msgstr "關閉其他�項�"
 
 #: editor/plugins/script_editor_plugin.cpp editor/project_manager.cpp
 msgid "Run"
-msgstr ""
+msgstr "�行"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Toggle Scripts Panel"
-msgstr ""
+msgstr "\"切�腳本\" ��"
 
 #: editor/plugins/script_editor_plugin.cpp
 #: editor/plugins/script_text_editor.cpp
 msgid "Find Next"
-msgstr ""
+msgstr "查找下一個"
 
 #: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
 msgid "Step Over"
-msgstr ""
+msgstr "跨�"
 
 #: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
 msgid "Step Into"
-msgstr ""
+msgstr "步入"
 
 #: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
 msgid "Break"
-msgstr ""
+msgstr "跳�"
 
 #: editor/plugins/script_editor_plugin.cpp editor/project_manager.cpp
 #: editor/script_editor_debugger.cpp
 msgid "Continue"
-msgstr ""
+msgstr "繼續"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Keep Debugger Open"
-msgstr ""
+msgstr "��調試器打開"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
 msgid "Debug with External Editor"
-msgstr "離開編輯器嗎?"
+msgstr "使用外部編輯器進行調試"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Open Godot online documentation"
-msgstr ""
+msgstr "打開 Godot 線上文檔"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Request Docs"
-msgstr ""
+msgstr "請求檔案"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Help improve the Godot documentation by giving feedback"
-msgstr ""
+msgstr "通��供回饋幫助改進 Godot 文檔"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Search the reference documentation."
-msgstr ""
+msgstr "�索�考文檔。"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Go to previous edited document."
-msgstr ""
+msgstr "轉到上一個編輯的檔案。"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Go to next edited document."
-msgstr ""
+msgstr "轉到下一個編輯的檔案。"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Discard"
-msgstr ""
+msgstr "棄置"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid ""
@@ -6022,20 +6073,20 @@ msgstr ""
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Reload"
-msgstr ""
+msgstr "�新載入"
 
 #: editor/plugins/script_editor_plugin.cpp
 msgid "Resave"
-msgstr ""
+msgstr "�新�存"
 
 #: editor/plugins/script_editor_plugin.cpp editor/script_editor_debugger.cpp
 msgid "Debugger"
-msgstr ""
+msgstr "調試器"
 
 #: editor/plugins/script_editor_plugin.cpp
 #, fuzzy
 msgid "Search Results"
-msgstr "�尋幫助"
+msgstr "�尋�果"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
@@ -6044,28 +6095,28 @@ msgstr "行:"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "(ignore)"
-msgstr ""
+msgstr "(忽略)"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
 msgid "Go to Function"
-msgstr "建立函�"
+msgstr "轉到函數"
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 msgid "Standard"
-msgstr ""
+msgstr "標準"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Only resources from filesystem can be dropped."
-msgstr ""
+msgstr "�能拖拽檔案系統中的資�。"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Lookup Symbol"
-msgstr ""
+msgstr "查找符號"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Pick Color"
-msgstr ""
+msgstr "�擇�色"
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 #, fuzzy
@@ -6074,46 +6125,46 @@ msgstr "轉��..."
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 msgid "Uppercase"
-msgstr ""
+msgstr "大寫"
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 msgid "Lowercase"
-msgstr ""
+msgstr "�寫"
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 msgid "Capitalize"
-msgstr ""
+msgstr "首字�大寫"
 
 #: editor/plugins/script_text_editor.cpp editor/plugins/text_editor.cpp
 msgid "Syntax Highlighter"
-msgstr ""
+msgstr "高亮顯示語法"
 
 #: editor/plugins/script_text_editor.cpp scene/gui/line_edit.cpp
 #: scene/gui/text_edit.cpp
 msgid "Cut"
-msgstr ""
+msgstr "剪切"
 
 #: editor/plugins/script_text_editor.cpp scene/gui/line_edit.cpp
 #: scene/gui/text_edit.cpp
 msgid "Select All"
-msgstr ""
+msgstr "�擇全部"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
 msgid "Delete Line"
-msgstr "刪除"
+msgstr "删除行"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Indent Left"
-msgstr ""
+msgstr "�左縮進"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Indent Right"
-msgstr ""
+msgstr "��縮進"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Toggle Comment"
-msgstr ""
+msgstr "切�注釋"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
@@ -6122,15 +6173,15 @@ msgstr "�往第...行"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Fold All Lines"
-msgstr ""
+msgstr "折疊所有行"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Unfold All Lines"
-msgstr ""
+msgstr "展開所有行"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Clone Down"
-msgstr ""
+msgstr "拷�到下一行"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Complete Symbol"
@@ -6152,40 +6203,39 @@ msgstr "轉��..."
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Auto Indent"
-msgstr ""
+msgstr "自動縮進"
 
 #: editor/plugins/script_text_editor.cpp
 #: modules/visual_script/visual_script_editor.cpp
 msgid "Toggle Breakpoint"
-msgstr ""
+msgstr "設置中斷點"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Remove All Breakpoints"
-msgstr ""
+msgstr "刪除所有中斷點"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
 msgid "Go to Next Breakpoint"
-msgstr "往下一步"
+msgstr "轉到下一個中斷點"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
 msgid "Go to Previous Breakpoint"
-msgstr "往上一步"
+msgstr "轉到上一個中斷點"
 
 #: editor/plugins/script_text_editor.cpp
 msgid "Find Previous"
-msgstr ""
+msgstr "查找上一個"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
 msgid "Find in Files..."
-msgstr "�濾檔案..."
+msgstr "在檔中查找..。"
 
 #: editor/plugins/script_text_editor.cpp
-#, fuzzy
 msgid "Go to Function..."
-msgstr "建立函�"
+msgstr "轉到函數…"
 
 #: editor/plugins/script_text_editor.cpp
 #, fuzzy
@@ -6198,58 +6248,57 @@ msgstr ""
 
 #: editor/plugins/shader_editor_plugin.cpp
 msgid "Shader"
-msgstr ""
+msgstr "著色器"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "This skeleton has no bones, create some children Bone2D nodes."
-msgstr ""
+msgstr "此骨架沒有骨骼�定，請創建一些 Bone2d 骨骼�節點。"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Create Rest Pose from Bones"
-msgstr ""
+msgstr "從骨骼創建休�姿勢"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Set Rest Pose to Bones"
-msgstr ""
+msgstr "將休�姿勢設置為骨骼"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
-#, fuzzy
 msgid "Skeleton2D"
-msgstr "單例"
+msgstr "2D骨骼節點"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Make Rest Pose (From Bones)"
-msgstr ""
+msgstr "創建休�姿勢 (從骨骼)"
 
 #: editor/plugins/skeleton_2d_editor_plugin.cpp
 msgid "Set Bones to Rest Pose"
-msgstr ""
+msgstr "將骨骼設定為�止姿勢"
 
 #: editor/plugins/skeleton_editor_plugin.cpp
 msgid "Create physical bones"
-msgstr ""
+msgstr "創建物�骨骼"
 
 #: editor/plugins/skeleton_editor_plugin.cpp
 #, fuzzy
 msgid "Skeleton"
-msgstr "單例"
+msgstr "骨架"
 
 #: editor/plugins/skeleton_editor_plugin.cpp
 msgid "Create physical skeleton"
-msgstr ""
+msgstr "創建物�骨架"
 
 #: editor/plugins/skeleton_ik_editor_plugin.cpp
 #, fuzzy
 msgid "Play IK"
-msgstr "開始"
+msgstr "播放 IK"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Orthogonal"
-msgstr ""
+msgstr "正交"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Perspective"
-msgstr ""
+msgstr "�視"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Transform Aborted."
@@ -6257,31 +6306,31 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "X-Axis Transform."
-msgstr ""
+msgstr "X軸變�。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Y-Axis Transform."
-msgstr ""
+msgstr "Y軸變�。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Z-Axis Transform."
-msgstr ""
+msgstr "Z 軸變�。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Plane Transform."
-msgstr ""
+msgstr "查看平�轉�。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Scaling: "
-msgstr ""
+msgstr "縮放： "
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Translating: "
-msgstr ""
+msgstr "翻譯： "
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rotating %s degrees."
-msgstr ""
+msgstr "旋轉 %s 度。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Keying is disabled (no key inserted)."
@@ -6297,80 +6346,79 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Yaw"
-msgstr ""
+msgstr "�航"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Objects Drawn"
-msgstr ""
+msgstr "繪製的物件"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Material Changes"
-msgstr "正在儲存變更..."
+msgstr "�質變更"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Shader Changes"
-msgstr ""
+msgstr "著色器變更"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Surface Changes"
-msgstr ""
+msgstr "表�變更"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Draw Calls"
-msgstr ""
+msgstr "繪製調用"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Vertices"
-msgstr ""
+msgstr "頂點"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Top View."
-msgstr ""
+msgstr "俯視圖。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Bottom View."
-msgstr ""
+msgstr "底視圖。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Bottom"
-msgstr ""
+msgstr "底部"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Left View."
-msgstr ""
+msgstr "左視圖。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Left"
-msgstr ""
+msgstr "å·¦"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Right View."
-msgstr ""
+msgstr "�視圖。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Right"
-msgstr ""
+msgstr "�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Front View."
-msgstr ""
+msgstr "�視圖。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Front"
-msgstr ""
+msgstr "正�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rear View."
-msgstr ""
+msgstr "後視圖。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rear"
-msgstr ""
+msgstr "後"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Align with View"
-msgstr ""
+msgstr "與視圖�齊"
 
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "No parent to instance a child at."
@@ -6378,11 +6426,11 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp editor/scene_tree_dock.cpp
 msgid "This operation requires a single selected node."
-msgstr ""
+msgstr "此�作需�單個�定的節點。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Lock View Rotation"
-msgstr ""
+msgstr "鎖定視圖旋轉"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Display Normal"
@@ -6390,101 +6438,99 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Display Wireframe"
-msgstr ""
+msgstr "顯示線框"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Display Overdraw"
-msgstr ""
+msgstr "顯示�度繪圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Display Unshaded"
-msgstr ""
+msgstr "顯示無陰影"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Environment"
-msgstr ""
+msgstr "查看環境"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Gizmos"
-msgstr ""
+msgstr "查看 Gizmos"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Information"
-msgstr ""
+msgstr "查看資訊"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
 msgid "View FPS"
-msgstr "�濾檔案..."
+msgstr "查看FPS"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Half Resolution"
-msgstr ""
+msgstr "�分辯率"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Audio Listener"
-msgstr ""
+msgstr "音訊監�器"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Doppler Enable"
-msgstr "啟用"
+msgstr "啟用多普拉效應"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Cinematic Preview"
-msgstr ""
+msgstr "影片�覽"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Freelook Left"
-msgstr ""
+msgstr "自由視圖 左"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Freelook Right"
-msgstr ""
+msgstr "自由視圖 �"
 
 #: editor/plugins/spatial_editor_plugin.cpp
-#, fuzzy
 msgid "Freelook Forward"
-msgstr "往�"
+msgstr "自由視圖 �"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Freelook Backwards"
-msgstr ""
+msgstr "自由視圖 �"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Freelook Up"
-msgstr ""
+msgstr "自由視圖 上"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Freelook Down"
-msgstr ""
+msgstr "自由視圖 下"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Freelook Speed Modifier"
-msgstr ""
+msgstr "自由視圖速度調節"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid ""
 "Note: The FPS value displayed is the editor's framerate.\n"
 "It cannot be used as a reliable indication of in-game performance."
-msgstr ""
+msgstr "注�: 顯示的FPS值是編輯器的幀率。 它�能用于表��戲內的實際性能"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Rotation Locked"
-msgstr ""
+msgstr "視圖旋轉已鎖定"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "XForm Dialog"
-msgstr ""
+msgstr "XForm�話框"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Snap Nodes To Floor"
-msgstr ""
+msgstr "將節點��到地�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
 msgid "Select Mode (Q)"
-msgstr "僅�擇�域"
+msgstr "�擇模� (Q)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid ""
@@ -6495,59 +6541,59 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Move Mode (W)"
-msgstr ""
+msgstr "移動模� (W)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rotate Mode (E)"
-msgstr ""
+msgstr "旋轉模� (E)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Scale Mode (R)"
-msgstr ""
+msgstr "縮放模� (R)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Local Coords"
-msgstr ""
+msgstr "本地�標"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Local Space Mode (%s)"
-msgstr ""
+msgstr "本地空間模�（%s）"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Snap Mode (%s)"
-msgstr ""
+msgstr "��模� (%s)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Bottom View"
-msgstr ""
+msgstr "底部視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Top View"
-msgstr ""
+msgstr "俯視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rear View"
-msgstr ""
+msgstr "後視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Front View"
-msgstr ""
+msgstr "�視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Left View"
-msgstr ""
+msgstr "左視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Right View"
-msgstr ""
+msgstr "�視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Switch Perspective/Orthogonal view"
-msgstr ""
+msgstr "切� 投影/正交 視圖"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Insert Animation Key"
-msgstr ""
+msgstr "�入動畫幀"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Focus Origin"
@@ -6559,64 +6605,64 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Align Selection With View"
-msgstr ""
+msgstr "將所�內容與視圖�齊"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 #, fuzzy
 msgid "Tool Select"
-msgstr "所有的�擇"
+msgstr "工具�擇"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Tool Move"
-msgstr ""
+msgstr "工具移動"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Tool Rotate"
-msgstr ""
+msgstr "工具旋轉"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Tool Scale"
-msgstr ""
+msgstr "縮放工具"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Toggle Freelook"
-msgstr ""
+msgstr "切�自由觀察模�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Transform"
-msgstr ""
+msgstr "變�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Snap object to floor"
-msgstr ""
+msgstr "將�象�附到地�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Transform Dialog..."
-msgstr ""
+msgstr "轉��話框..。"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "1 Viewport"
-msgstr ""
+msgstr "1個視�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "2 Viewports"
-msgstr ""
+msgstr "2個視�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "2 Viewports (Alt)"
-msgstr ""
+msgstr "2個視� (Alt)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "3 Viewports"
-msgstr ""
+msgstr "3個視�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "3 Viewports (Alt)"
-msgstr ""
+msgstr "3個視� (Alt)"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "4 Viewports"
-msgstr ""
+msgstr "4個視�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Gizmos"
@@ -6624,48 +6670,48 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Origin"
-msgstr ""
+msgstr "顯示原點"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Grid"
-msgstr ""
+msgstr "顯示網格"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 #: modules/gridmap/grid_map_editor_plugin.cpp
 msgid "Settings"
-msgstr ""
+msgstr "設定"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Snap Settings"
-msgstr ""
+msgstr "�附設定"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Translate Snap:"
-msgstr ""
+msgstr "移動�附"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rotate Snap (deg.):"
-msgstr ""
+msgstr "旋轉�附（度）："
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Scale Snap (%):"
-msgstr ""
+msgstr "縮放�附 (%):"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Viewport Settings"
-msgstr ""
+msgstr "視�設定"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Perspective FOV (deg.):"
-msgstr ""
+msgstr "�視視角（度）："
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Z-Near:"
-msgstr ""
+msgstr "查看Z-Near:"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "View Z-Far:"
-msgstr ""
+msgstr "查看 Z-Far:"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Transform Change"
@@ -6677,31 +6723,51 @@ msgstr ""
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Rotate (deg.):"
-msgstr ""
+msgstr "旋轉 (度):"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Scale (ratio):"
-msgstr ""
+msgstr "縮放(比例):"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Transform Type"
-msgstr ""
+msgstr "轉�類型"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Pre"
-msgstr ""
+msgstr "�"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Post"
-msgstr ""
+msgstr "發佈"
 
 #: editor/plugins/spatial_editor_plugin.cpp
 msgid "Nameless gizmo"
-msgstr ""
+msgstr "未命�的gizmo"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Mesh2D"
+msgstr "創建2D網格"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create Polygon2D"
+msgstr "創建3D多邊形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D"
+msgstr "創建碰撞多邊形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D"
+msgstr "創建�光多邊形"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite is empty!"
-msgstr ""
+msgstr "Sprite 是空的�"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Can't convert a sprite using animation frames to mesh."
@@ -6709,7 +6775,22 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Invalid geometry, can't replace by mesh."
-msgstr ""
+msgstr "無效的幾何圖形，無法用網格替�。"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create polygon."
+msgstr "無效的幾何圖形，無法用網格替�。"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create collision polygon."
+msgstr "無效的幾何圖形，無法用網格替�。"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Invalid geometry, can't create light occluder."
+msgstr "無效的幾何圖形，無法用網格替�。"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Sprite"
@@ -6717,98 +6798,108 @@ msgstr ""
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Convert to 2D Mesh"
-msgstr "轉��..."
+msgid "Convert to Mesh2D"
+msgstr "轉�為2D網格"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
-msgid "Create 2D Mesh"
-msgstr "新增 %s"
+msgid "Convert to Polygon2D"
+msgstr "轉�為2D網格"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create CollisionPolygon2D Sibling"
+msgstr "創建碰撞多邊形"
+
+#: editor/plugins/sprite_editor_plugin.cpp
+#, fuzzy
+msgid "Create LightOccluder2D Sibling"
+msgstr "創建�光多邊形"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Simplification: "
-msgstr ""
+msgstr "簡化： "
 
 #: editor/plugins/sprite_editor_plugin.cpp
 msgid "Grow (Pixels): "
-msgstr ""
+msgstr "擴展（�素）: "
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Update Preview"
-msgstr "�覽:"
+msgstr "更新�覽"
 
 #: editor/plugins/sprite_editor_plugin.cpp
 #, fuzzy
 msgid "Settings:"
-msgstr "專案設定"
+msgstr "設定："
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "ERROR: Couldn't load frame resource!"
-msgstr ""
+msgstr "錯誤：無法加載幀資��"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Add Frame"
-msgstr ""
+msgstr "添加幀"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Resource clipboard is empty or not a texture!"
-msgstr ""
+msgstr "資�剪貼�為空或�是紋��"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Paste Frame"
-msgstr ""
+msgstr "粘貼幀"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Add Empty"
-msgstr ""
+msgstr "添加空白幀"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Change Animation FPS"
-msgstr ""
+msgstr "更改動畫fps"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "(empty)"
-msgstr ""
+msgstr "(空)"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 #, fuzzy
 msgid "Animations:"
-msgstr "動畫空間。"
+msgstr "動畫："
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 #, fuzzy
 msgid "New Animation"
-msgstr "動畫最佳化"
+msgstr "æ–°å‹•ç•«"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Speed (FPS):"
-msgstr ""
+msgstr "速度 (FPS):"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Loop"
-msgstr ""
+msgstr "循環"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 #, fuzzy
 msgid "Animation Frames:"
-msgstr "動畫空間。"
+msgstr "動畫幀："
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Insert Empty (Before)"
-msgstr ""
+msgstr "�入空白幀（之�）"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Insert Empty (After)"
-msgstr ""
+msgstr "�入空白幀（之�）"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Move (Before)"
-msgstr ""
+msgstr "移動（以�）"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "Move (After)"
-msgstr ""
+msgstr "移動（之後）"
 
 #: editor/plugins/sprite_frames_editor_plugin.cpp
 msgid "SpriteFrames"
@@ -6816,32 +6907,32 @@ msgstr ""
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Set Region Rect"
-msgstr ""
+msgstr "設置紋��域"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Set Margin"
-msgstr ""
+msgstr "設置邊�"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Snap Mode:"
-msgstr ""
+msgstr "�附模�:"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 #: scene/resources/visual_shader.cpp
 msgid "None"
-msgstr ""
+msgstr "ç„¡"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Pixel Snap"
-msgstr ""
+msgstr "�素�附"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Grid Snap"
-msgstr ""
+msgstr "網格�附"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Auto Slice"
-msgstr ""
+msgstr "自動剪切"
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Offset:"
@@ -6849,7 +6940,7 @@ msgstr ""
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Step:"
-msgstr ""
+msgstr "步驟："
 
 #: editor/plugins/texture_region_editor_plugin.cpp
 msgid "Sep.:"
@@ -6861,40 +6952,40 @@ msgstr ""
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Can't save theme to file:"
-msgstr ""
+msgstr "無法將主題�存到檔案："
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Add All Items"
-msgstr ""
+msgstr "添加所有項目"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Add All"
-msgstr ""
+msgstr "全部添加"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Remove All Items"
-msgstr ""
+msgstr "删除所有項目"
 
 #: editor/plugins/theme_editor_plugin.cpp
 #, fuzzy
 msgid "Remove All"
-msgstr "移除"
+msgstr "全部删除"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Edit theme..."
-msgstr ""
+msgstr "編輯主題…"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Theme editing menu."
-msgstr ""
+msgstr "主題編輯�單。"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Add Class Items"
-msgstr ""
+msgstr "添加類項"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Remove Class Items"
-msgstr ""
+msgstr "删除類項"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Create Empty Template"
@@ -6906,7 +6997,7 @@ msgstr ""
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Create From Current Editor Theme"
-msgstr ""
+msgstr "從當�編輯器主題模�創建"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "CheckBox Radio1"
@@ -6918,116 +7009,113 @@ msgstr ""
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Item"
-msgstr ""
+msgstr "é …ç›®"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Check Item"
-msgstr ""
+msgstr "檢查項目"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Checked Item"
-msgstr ""
+msgstr "已檢查的項目"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Radio Item"
-msgstr ""
+msgstr "單�項目"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Checked Radio Item"
-msgstr ""
+msgstr "�中的單�項目"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Has"
-msgstr ""
+msgstr "有"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Many"
-msgstr ""
+msgstr "許多"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Has,Many,Options"
-msgstr ""
+msgstr "有, 許多, �項"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Tab 1"
-msgstr ""
+msgstr "標籤 1"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Tab 2"
-msgstr ""
+msgstr "標籤 2"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Tab 3"
-msgstr ""
+msgstr "標籤 3"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Data Type:"
-msgstr ""
+msgstr "數據類型:"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Icon"
-msgstr ""
+msgstr "圖標"
 
 #: editor/plugins/theme_editor_plugin.cpp editor/rename_dialog.cpp
 msgid "Style"
-msgstr ""
+msgstr "樣�"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Font"
-msgstr ""
+msgstr "å­—é«”"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Color"
-msgstr ""
+msgstr "�色"
 
 #: editor/plugins/theme_editor_plugin.cpp
 msgid "Constant"
 msgstr "固定"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
-#, fuzzy
 msgid "Erase Selection"
-msgstr "所有的�擇"
+msgstr "擦除�中"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 #, fuzzy
 msgid "Fix Invalid Tiles"
-msgstr "�能使用的�稱。"
+msgstr "修復無效的�貼"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
-#, fuzzy
 msgid "Cut Selection"
-msgstr "所有的�擇"
+msgstr "切割�擇"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Paint TileMap"
-msgstr ""
+msgstr "繪製磚塊地圖"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
-#, fuzzy
 msgid "Line Draw"
-msgstr "線性"
+msgstr "線性繪製"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Rectangle Paint"
-msgstr ""
+msgstr "繪製矩形"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Bucket Fill"
-msgstr ""
+msgstr "油漆桶填充"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Erase TileMap"
-msgstr ""
+msgstr "擦除磚塊地圖"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 #, fuzzy
 msgid "Find Tile"
-msgstr "尋找"
+msgstr "查找�貼"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Transpose"
-msgstr ""
+msgstr "轉置"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Mirror X"
@@ -7039,75 +7127,73 @@ msgstr ""
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Paint Tile"
-msgstr ""
+msgstr "繪製�貼"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Pick Tile"
-msgstr ""
+msgstr "�擇�貼"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 #, fuzzy
 msgid "Copy Selection"
-msgstr "移除所�"
+msgstr "複製�擇"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Rotate left"
-msgstr ""
+msgstr "�左旋轉"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Rotate right"
-msgstr ""
+msgstr "��旋轉"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Flip horizontally"
-msgstr ""
+msgstr "水平翻轉"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
 msgid "Flip vertically"
-msgstr ""
+msgstr "垂直翻轉"
 
 #: editor/plugins/tile_map_editor_plugin.cpp
-#, fuzzy
 msgid "Clear transform"
-msgstr "動畫更改座標"
+msgstr "清除變�"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Add Texture(s) to TileSet."
-msgstr ""
+msgstr "將紋�添加到�貼集。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Remove selected Texture from TileSet."
-msgstr "移除"
+msgstr "從�貼集中刪除�定的紋�。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Create from Scene"
-msgstr ""
+msgstr "從場景創建"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Merge from Scene"
-msgstr ""
+msgstr "從場景�併"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Next Coordinate"
-msgstr ""
+msgstr "下一個座標"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the next shape, subtile, or Tile."
-msgstr ""
+msgstr "�擇下一個形狀���貼或�貼。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Previous Coordinate"
-msgstr "上個分�"
+msgstr "上一個座標"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Select the previous shape, subtile, or Tile."
-msgstr ""
+msgstr "�擇上一個形狀���貼或�貼。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Copy bitmask."
-msgstr ""
+msgstr "複製�掩碼。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7115,53 +7201,52 @@ msgid "Paste bitmask."
 msgstr "貼上�數"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Erase bitmask."
-msgstr "所有的�擇"
+msgstr "擦除�掩碼."
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Create a new rectangle."
-msgstr "新增 %s"
+msgstr "創建新矩形。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Create a new polygon."
-msgstr "新增資料夾"
+msgstr "創建新多邊形。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Keep polygon inside region Rect."
-msgstr ""
+msgstr "將多邊形�留在�域內。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Enable snap and show grid (configurable via the Inspector)."
-msgstr ""
+msgstr "啟用�附和顯示網格 (�通�屬性���置)。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Display Tile Names (Hold Alt Key)"
-msgstr ""
+msgstr "顯示�貼�稱 (按� ALT �)"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Remove selected texture? This will remove all tiles which use it."
-msgstr "移除"
+msgstr "刪除�定的紋�？這將刪除使用它的所有�貼。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "You haven't selected a texture to remove."
-msgstr ""
+msgstr "您尚未�擇�刪除的紋�。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Create from scene? This will overwrite all current tiles."
-msgstr ""
+msgstr "從場景創建？這將覆蓋所有當��貼。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Merge from scene?"
-msgstr ""
+msgstr "確定�併場景？"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Remove Texture"
-msgstr "移除"
+msgstr "刪除紋�"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "%s file(s) were not added because was already on the list."
@@ -7174,9 +7259,8 @@ msgid ""
 msgstr ""
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Delete selected Rect."
-msgstr "確定刪除所�擇的檔案嗎?"
+msgstr "删除所�的Rect。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7188,7 +7272,7 @@ msgstr "新增資料夾"
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Delete polygon."
-msgstr "刪除"
+msgstr "刪除多邊形。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7220,31 +7304,30 @@ msgstr "新增資料夾"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Set Tile Region"
-msgstr ""
+msgstr "設置�貼�域"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Create Tile"
-msgstr "新增資料夾"
+msgstr "創建�貼"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Set Tile Icon"
-msgstr ""
+msgstr "設定�貼圖標"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Edit Tile Bitmask"
-msgstr "�濾檔案..."
+msgstr "編輯�貼�掩碼"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Edit Collision Polygon"
-msgstr "新增資料夾"
+msgstr "編輯碰撞多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Edit Occlusion Polygon"
-msgstr "新增資料夾"
+msgstr "編輯�擋多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
@@ -7252,45 +7335,41 @@ msgid "Edit Navigation Polygon"
 msgstr "新增資料夾"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Paste Tile Bitmask"
-msgstr "貼上�數"
+msgstr "粘貼�貼�掩碼"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Clear Tile Bitmask"
-msgstr ""
+msgstr "清除�貼�掩碼"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Make Polygon Concave"
-msgstr ""
+msgstr "使多邊形塌陷"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Make Polygon Convex"
-msgstr "新增資料夾"
+msgstr "使多邊形凸起"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Remove Tile"
-msgstr "移除"
+msgstr "移除�貼"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Remove Collision Polygon"
-msgstr "移除"
+msgstr "刪除碰撞多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Remove Occlusion Polygon"
-msgstr ""
+msgstr "刪除�擋多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Remove Navigation Polygon"
-msgstr ""
+msgstr "刪除導航多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
-#, fuzzy
 msgid "Edit Tile Priority"
-msgstr "�濾檔案..."
+msgstr "編輯�貼優先級"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "Edit Tile Z Index"
@@ -7299,17 +7378,17 @@ msgstr ""
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Create Collision Polygon"
-msgstr "新增資料夾"
+msgstr "創建碰撞多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "Create Occlusion Polygon"
-msgstr "新增資料夾"
+msgstr "創建�擋多邊形"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 #, fuzzy
 msgid "This property can't be changed."
-msgstr "此�作無法在沒有根節點的情�下進行。"
+msgstr "無法更改此屬性。"
 
 #: editor/plugins/tile_set_editor_plugin.cpp
 msgid "TileSet"
@@ -7317,54 +7396,58 @@ msgstr ""
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Set Uniform Name"
-msgstr ""
+msgstr "設置統一�稱"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Set Input Default Port"
-msgstr ""
+msgstr "設置輸入�設端�"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Add Node to Visual Shader"
-msgstr ""
+msgstr "將節點添加到�視化著色器"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
-#, fuzzy
 msgid "Duplicate Nodes"
-msgstr "複製動畫關�畫格"
+msgstr "複製節點"
+
+#: editor/plugins/visual_shader_editor_plugin.cpp
+#, fuzzy
+msgid "Delete Nodes"
+msgstr "刪除"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Input Type Changed"
-msgstr ""
+msgstr "視覺著色器輸入類型已更改"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Vertex"
-msgstr ""
+msgstr "頂點"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 #, fuzzy
 msgid "Fragment"
-msgstr "輸入�數"
+msgstr "片段"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Light"
-msgstr ""
+msgstr "燈光"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "VisualShader"
-msgstr ""
+msgstr "視覺化著色器"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 #, fuzzy
 msgid "Edit Visual Property"
-msgstr "�濾檔案..."
+msgstr "編輯�視屬性"
 
 #: editor/plugins/visual_shader_editor_plugin.cpp
 msgid "Visual Shader Mode Changed"
-msgstr ""
+msgstr "視覺著色器模�已更改"
 
 #: editor/project_export.cpp
 msgid "Runnable"
-msgstr ""
+msgstr "��行的"
 
 #: editor/project_export.cpp
 msgid "Delete patch '%s' from list?"
@@ -7372,7 +7455,7 @@ msgstr ""
 
 #: editor/project_export.cpp
 msgid "Delete preset '%s'?"
-msgstr ""
+msgstr "是�删除�設“%s�？"
 
 #: editor/project_export.cpp
 msgid ""
@@ -7389,54 +7472,51 @@ msgstr ""
 
 #: editor/project_export.cpp
 msgid "Release"
-msgstr ""
+msgstr "釋放"
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid "Exporting All"
-msgstr "輸出"
+msgstr "全部導出"
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid "The given export path doesn't exist:"
-msgstr "檔案�存在"
+msgstr "給定的導出路徑�存在:"
 
 #: editor/project_export.cpp
 msgid "Export templates for this platform are missing/corrupted:"
-msgstr ""
+msgstr "無此平臺的導出範本:"
 
 #: editor/project_export.cpp
 msgid "Presets"
-msgstr ""
+msgstr "�設"
 
 #: editor/project_export.cpp editor/project_settings_editor.cpp
 msgid "Add..."
-msgstr ""
+msgstr "添加…"
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid "Export Path"
-msgstr "輸出"
+msgstr "導出路徑"
 
 #: editor/project_export.cpp
 msgid "Resources"
-msgstr ""
+msgstr "資�"
 
 #: editor/project_export.cpp
 msgid "Export all resources in the project"
-msgstr ""
+msgstr "導出項目中的所有資�"
 
 #: editor/project_export.cpp
 msgid "Export selected scenes (and dependencies)"
-msgstr ""
+msgstr "導出�定的場景 (和�賴項)"
 
 #: editor/project_export.cpp
 msgid "Export selected resources (and dependencies)"
-msgstr ""
+msgstr "導出�定的資� (和�賴項)"
 
 #: editor/project_export.cpp
 msgid "Export Mode:"
-msgstr ""
+msgstr "導出模�:"
 
 #: editor/project_export.cpp
 msgid "Resources to export:"
@@ -7454,205 +7534,201 @@ msgstr ""
 
 #: editor/project_export.cpp
 msgid "Patches"
-msgstr ""
+msgstr "補�"
 
 #: editor/project_export.cpp
 msgid "Make Patch"
-msgstr ""
+msgstr "製作補�"
 
 #: editor/project_export.cpp
 msgid "Features"
-msgstr ""
+msgstr "功能"
 
 #: editor/project_export.cpp
 msgid "Custom (comma-separated):"
-msgstr ""
+msgstr "自訂 (逗號分隔):"
 
 #: editor/project_export.cpp
 #, fuzzy
 msgid "Feature List:"
-msgstr "方法:"
+msgstr "功能清單:"
 
 #: editor/project_export.cpp
 #, fuzzy
 msgid "Script"
-msgstr "開啟最近存�"
+msgstr "腳本"
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid "Script Export Mode:"
-msgstr "輸出"
+msgstr "腳本導出模�:"
 
 #: editor/project_export.cpp
 msgid "Text"
-msgstr ""
+msgstr "文本"
 
 #: editor/project_export.cpp
 msgid "Compiled"
-msgstr ""
+msgstr "編譯"
 
 #: editor/project_export.cpp
 msgid "Encrypted (Provide Key Below)"
-msgstr ""
+msgstr "加密 (使用以下密碼)"
 
 #: editor/project_export.cpp
 msgid "Invalid Encryption Key (must be 64 characters long)"
-msgstr ""
+msgstr "�正確加密金鑰 (長度必須為64個字元)"
 
 #: editor/project_export.cpp
 msgid "Script Encryption Key (256-bits as hex):"
-msgstr ""
+msgstr "腳本加密金鑰 (256��六進�碼):"
 
 #: editor/project_export.cpp
-#, fuzzy
 msgid "Export PCK/Zip"
-msgstr "輸出"
+msgstr "導出 PCK/ZIP"
 
 #: editor/project_export.cpp
 #, fuzzy
 msgid "Export mode?"
-msgstr "輸出"
+msgstr "導出模�:"
 
 #: editor/project_export.cpp
 #, fuzzy
 msgid "Export All"
-msgstr "輸出"
+msgstr "全部導出"
 
 #: editor/project_export.cpp
 msgid "Export templates for this platform are missing:"
-msgstr ""
+msgstr "缺少此平臺的導出範本:"
 
 #: editor/project_export.cpp
 msgid "Export With Debug"
-msgstr ""
+msgstr "導出為調試"
 
 #: editor/project_manager.cpp
-#, fuzzy
 msgid "The path does not exist."
-msgstr "檔案�存在"
+msgstr "路徑�存在."
 
 #: editor/project_manager.cpp
 msgid "Invalid '.zip' project file, does not contain a 'project.godot' file."
-msgstr ""
+msgstr "“.zip�項目檔案無效，�包�“project.godot�檔案。"
 
 #: editor/project_manager.cpp
 msgid "Please choose an empty folder."
-msgstr ""
+msgstr "請�擇一個空資料夾。"
 
 #: editor/project_manager.cpp
 msgid "Please choose a 'project.godot' or '.zip' file."
-msgstr ""
+msgstr "請�擇“project.godot�或“.zip�檔案。"
 
 #: editor/project_manager.cpp
 msgid "Directory already contains a Godot project."
-msgstr ""
+msgstr "目錄已包�一個godot項目。"
 
 #: editor/project_manager.cpp
 msgid "Imported Project"
-msgstr ""
+msgstr "已導入的項目"
 
 #: editor/project_manager.cpp
 #, fuzzy
 msgid "Invalid Project Name."
-msgstr "�能使用的�稱。"
+msgstr "項目�稱無效。"
 
 #: editor/project_manager.cpp
-#, fuzzy
 msgid "Couldn't create folder."
-msgstr "無法新增資料夾"
+msgstr "無法新增資料夾."
 
 #: editor/project_manager.cpp
 msgid "There is already a folder in this path with the specified name."
-msgstr ""
+msgstr "此路徑中已存在具有指定�稱的資料夾。"
 
 #: editor/project_manager.cpp
 msgid "It would be a good idea to name your project."
-msgstr ""
+msgstr "給你的項目命�是個好主�。"
 
 #: editor/project_manager.cpp
 msgid "Invalid project path (changed anything?)."
-msgstr ""
+msgstr "�正確項目路徑 (更改了任何內容？)。"
 
 #: editor/project_manager.cpp
 msgid ""
 "Couldn't load project.godot in project path (error %d). It may be missing or "
 "corrupted."
-msgstr ""
+msgstr "無法在項目路徑中加載project.godot（錯誤%d）。它�能�失或�壞。"
 
 #: editor/project_manager.cpp
 msgid "Couldn't edit project.godot in project path."
-msgstr ""
+msgstr "無法在項目路徑中編輯project.godot。"
 
 #: editor/project_manager.cpp
 msgid "Couldn't create project.godot in project path."
-msgstr ""
+msgstr "無法在項目路徑中創建project.godot。"
 
 #: editor/project_manager.cpp
 msgid "The following files failed extraction from package:"
-msgstr ""
+msgstr "��以下檔案失敗："
 
 #: editor/project_manager.cpp
 #, fuzzy
 msgid "Rename Project"
-msgstr "專案設定"
+msgstr "�命�項目"
 
 #: editor/project_manager.cpp
 msgid "New Game Project"
-msgstr ""
+msgstr "新�戲項目"
 
 #: editor/project_manager.cpp
 msgid "Import Existing Project"
-msgstr ""
+msgstr "導入�有項目"
 
 #: editor/project_manager.cpp
 msgid "Import & Edit"
-msgstr ""
+msgstr "導入與編輯"
 
 #: editor/project_manager.cpp
 msgid "Create New Project"
-msgstr ""
+msgstr "創建新項目"
 
 #: editor/project_manager.cpp
 #, fuzzy
 msgid "Create & Edit"
-msgstr "新增"
+msgstr "創建和編輯"
 
 #: editor/project_manager.cpp
 msgid "Install Project:"
-msgstr ""
+msgstr "安�項目："
 
 #: editor/project_manager.cpp
 msgid "Install & Edit"
-msgstr ""
+msgstr "安�和編輯"
 
 #: editor/project_manager.cpp
 msgid "Project Name:"
-msgstr ""
+msgstr "項目�稱："
 
 #: editor/project_manager.cpp
 #, fuzzy
 msgid "Create folder"
-msgstr "新增資料夾"
+msgstr "創建資料夾"
 
 #: editor/project_manager.cpp
 msgid "Project Path:"
-msgstr ""
+msgstr "項目路徑："
 
 #: editor/project_manager.cpp
 msgid "Project Installation Path:"
-msgstr ""
+msgstr "項目安�路徑："
 
 #: editor/project_manager.cpp
 msgid "Browse"
-msgstr ""
+msgstr "�覽"
 
 #: editor/project_manager.cpp
 msgid "Renderer:"
-msgstr ""
+msgstr "渲染器："
 
 #: editor/project_manager.cpp
 msgid "OpenGL ES 3.0"
-msgstr ""
+msgstr "OpenGL ES 3.0"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -7664,7 +7740,7 @@ msgstr ""
 
 #: editor/project_manager.cpp
 msgid "OpenGL ES 2.0"
-msgstr ""
+msgstr "OpenGL ES 2.0"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -7676,20 +7752,20 @@ msgstr ""
 
 #: editor/project_manager.cpp
 msgid "Renderer can be changed later, but scenes may need to be adjusted."
-msgstr ""
+msgstr "渲染器�以然後更改, 但場景�能需�調整。"
 
 #: editor/project_manager.cpp
 msgid "Unnamed Project"
-msgstr ""
+msgstr "未命�項目"
 
 #: editor/project_manager.cpp
 #, fuzzy
 msgid "Can't open project at '%s'."
-msgstr "連接..."
+msgstr "無法打開�於“%s�的項目。"
 
 #: editor/project_manager.cpp
 msgid "Are you sure to open more than one project?"
-msgstr ""
+msgstr "您確定�打開多個項目嗎？"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -7703,6 +7779,12 @@ msgid ""
 "Warning: You will not be able to open the project with previous versions of "
 "the engine anymore."
 msgstr ""
+"以下項目設定檔案未指定通�其創建的Godot的版本。\n"
+"\n"
+"%s\n"
+"\n"
+"如果繼續打開它, 它將被轉�為 Godot 的當��置檔案格�。 \n"
+"警告: 您將無法�使用以�版本的引擎打開項目。"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -7715,12 +7797,18 @@ msgid ""
 "Warning: You will not be able to open the project with previous versions of "
 "the engine anymore."
 msgstr ""
+"以下項目設置檔案是由較舊的引擎版本生�的, 需�為此版本進行轉�:\n"
+"\n"
+"%s\n"
+"\n"
+"是��將其轉�？\n"
+"警告: 您將無法�使用以�版本的引擎打開專案。"
 
 #: editor/project_manager.cpp
 msgid ""
 "The project settings were created by a newer engine version, whose settings "
 "are not compatible with this version."
-msgstr ""
+msgstr "此項目設置是由較新的引擎版本創建的, 其設置與此版本�相容。"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -7737,11 +7825,11 @@ msgstr ""
 
 #: editor/project_manager.cpp
 msgid "Are you sure to run more than one project?"
-msgstr ""
+msgstr "您確定��行多個項目嗎？"
 
 #: editor/project_manager.cpp
 msgid "Remove project from the list? (Folder contents will not be modified)"
-msgstr ""
+msgstr "是�從清單中删除項目？（資料夾內容將�被修改）"
 
 #: editor/project_manager.cpp
 msgid ""
@@ -8523,10 +8611,6 @@ msgid "Open documentation"
 msgstr "開啟最近存�"
 
 #: editor/scene_tree_dock.cpp
-msgid "Delete Node(s)"
-msgstr ""
-
-#: editor/scene_tree_dock.cpp
 msgid "Add Child Node"
 msgstr ""
 
@@ -9285,7 +9369,7 @@ msgstr ""
 
 #: modules/recast/navigation_mesh_editor_plugin.cpp
 msgid "Bake NavMesh"
-msgstr ""
+msgstr "渲染NavMesh"
 
 #: modules/recast/navigation_mesh_editor_plugin.cpp
 msgid "Clear the navigation mesh."
@@ -10333,6 +10417,9 @@ msgstr ""
 msgid "Varyings can only be assigned in vertex function."
 msgstr ""
 
+#~ msgid "Insert keys."
+#~ msgstr "�入幀."
+
 #~ msgid "Line:"
 #~ msgstr "行:"
 
diff --git a/main/input_default.cpp b/main/input_default.cpp
index e9f1eeff6a..a939d77a1e 100644
--- a/main/input_default.cpp
+++ b/main/input_default.cpp
@@ -623,7 +623,8 @@ bool InputDefault::is_emulating_mouse_from_touch() const {
 	return emulate_mouse_from_touch;
 }
 
-Input::CursorShape InputDefault::get_default_cursor_shape() {
+Input::CursorShape InputDefault::get_default_cursor_shape() const {
+
 	return default_shape;
 }
 
@@ -638,6 +639,11 @@ void InputDefault::set_default_cursor_shape(CursorShape p_shape) {
 	parse_input_event(mm);
 }
 
+Input::CursorShape InputDefault::get_current_cursor_shape() const {
+
+	return (Input::CursorShape)OS::get_singleton()->get_cursor_shape();
+}
+
 void InputDefault::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
 	if (Engine::get_singleton()->is_editor_hint())
 		return;
@@ -645,21 +651,6 @@ void InputDefault::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_sh
 	OS::get_singleton()->set_custom_mouse_cursor(p_cursor, (OS::CursorShape)p_shape, p_hotspot);
 }
 
-void InputDefault::set_mouse_in_window(bool p_in_window) {
-	/* no longer supported, leaving this for reference to anyone who might want to implement hardware cursors
-	if (custom_cursor.is_valid()) {
-
-		if (p_in_window) {
-			set_mouse_mode(MOUSE_MODE_HIDDEN);
-			VisualServer::get_singleton()->cursor_set_visible(true);
-		} else {
-			set_mouse_mode(MOUSE_MODE_VISIBLE);
-			VisualServer::get_singleton()->cursor_set_visible(false);
-		}
-	}
-	*/
-}
-
 void InputDefault::accumulate_input_event(const Ref<InputEvent> &p_event) {
 	ERR_FAIL_COND(p_event.is_null());
 
@@ -686,6 +677,19 @@ void InputDefault::set_use_accumulated_input(bool p_enable) {
 	use_accumulated_input = p_enable;
 }
 
+void InputDefault::release_pressed_events() {
+
+	flush_accumulated_events(); // this is needed to release actions strengths
+
+	keys_pressed.clear();
+	joy_buttons_pressed.clear();
+	_joy_axis.clear();
+
+	for (Map<StringName, InputDefault::Action>::Element *E = action_state.front(); E; E = E->next()) {
+		action_release(E->key());
+	}
+}
+
 InputDefault::InputDefault() {
 
 	use_accumulated_input = true;
diff --git a/main/input_default.h b/main/input_default.h
index 79a90cc4a4..80ee17656c 100644
--- a/main/input_default.h
+++ b/main/input_default.h
@@ -242,10 +242,10 @@ public:
 	void set_emulate_mouse_from_touch(bool p_emulate);
 	virtual bool is_emulating_mouse_from_touch() const;
 
-	virtual CursorShape get_default_cursor_shape();
+	virtual CursorShape get_default_cursor_shape() const;
 	virtual void set_default_cursor_shape(CursorShape p_shape);
+	virtual CursorShape get_current_cursor_shape() const;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape = Input::CURSOR_ARROW, const Vector2 &p_hotspot = Vector2());
-	virtual void set_mouse_in_window(bool p_in_window);
 
 	void parse_mapping(String p_mapping);
 	void joy_button(int p_device, int p_button, bool p_pressed);
@@ -272,6 +272,7 @@ public:
 	virtual void flush_accumulated_events();
 	virtual void set_use_accumulated_input(bool p_enable);
 
+	virtual void release_pressed_events();
 	InputDefault();
 };
 
diff --git a/main/main.cpp b/main/main.cpp
index 0871b12338..fc9ec3b2d9 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -1882,7 +1882,9 @@ bool Main::iteration() {
 
 	uint64_t idle_begin = OS::get_singleton()->get_ticks_usec();
 
-	OS::get_singleton()->get_main_loop()->idle(step * time_scale);
+	if (OS::get_singleton()->get_main_loop()->idle(step * time_scale)) {
+		exit = true;
+	}
 	message_queue->flush();
 
 	VisualServer::get_singleton()->sync(); //sync if still drawing from previous frames.
diff --git a/main/performance.cpp b/main/performance.cpp
index 49a08aa8d1..71cd94aeab 100644
--- a/main/performance.cpp
+++ b/main/performance.cpp
@@ -32,6 +32,7 @@
 
 #include "core/message_queue.h"
 #include "core/os/os.h"
+#include "scene/main/node.h"
 #include "scene/main/scene_tree.h"
 #include "servers/audio_server.h"
 #include "servers/physics_2d_server.h"
@@ -55,6 +56,7 @@ void Performance::_bind_methods() {
 	BIND_ENUM_CONSTANT(OBJECT_COUNT);
 	BIND_ENUM_CONSTANT(OBJECT_RESOURCE_COUNT);
 	BIND_ENUM_CONSTANT(OBJECT_NODE_COUNT);
+	BIND_ENUM_CONSTANT(OBJECT_ORPHAN_NODE_COUNT);
 	BIND_ENUM_CONSTANT(RENDER_OBJECTS_IN_FRAME);
 	BIND_ENUM_CONSTANT(RENDER_VERTICES_IN_FRAME);
 	BIND_ENUM_CONSTANT(RENDER_MATERIAL_CHANGES_IN_FRAME);
@@ -76,6 +78,14 @@ void Performance::_bind_methods() {
 	BIND_ENUM_CONSTANT(MONITOR_MAX);
 }
 
+float Performance::_get_node_count() const {
+	MainLoop *ml = OS::get_singleton()->get_main_loop();
+	SceneTree *sml = Object::cast_to<SceneTree>(ml);
+	if (!sml)
+		return 0;
+	return sml->get_node_count();
+}
+
 String Performance::get_monitor_name(Monitor p_monitor) const {
 
 	ERR_FAIL_INDEX_V(p_monitor, MONITOR_MAX, String());
@@ -92,6 +102,7 @@ String Performance::get_monitor_name(Monitor p_monitor) const {
 		"object/objects",
 		"object/resources",
 		"object/nodes",
+		"object/orphan_nodes",
 		"raster/objects_drawn",
 		"raster/vertices_drawn",
 		"raster/mat_changes",
@@ -128,14 +139,8 @@ float Performance::get_monitor(Monitor p_monitor) const {
 		case MEMORY_MESSAGE_BUFFER_MAX: return MessageQueue::get_singleton()->get_max_buffer_usage();
 		case OBJECT_COUNT: return ObjectDB::get_object_count();
 		case OBJECT_RESOURCE_COUNT: return ResourceCache::get_cached_resource_count();
-		case OBJECT_NODE_COUNT: {
-
-			MainLoop *ml = OS::get_singleton()->get_main_loop();
-			SceneTree *sml = Object::cast_to<SceneTree>(ml);
-			if (!sml)
-				return 0;
-			return sml->get_node_count();
-		};
+		case OBJECT_NODE_COUNT: return _get_node_count();
+		case OBJECT_ORPHAN_NODE_COUNT: return Node::orphan_node_count;
 		case RENDER_OBJECTS_IN_FRAME: return VS::get_singleton()->get_render_info(VS::INFO_OBJECTS_IN_FRAME);
 		case RENDER_VERTICES_IN_FRAME: return VS::get_singleton()->get_render_info(VS::INFO_VERTICES_IN_FRAME);
 		case RENDER_MATERIAL_CHANGES_IN_FRAME: return VS::get_singleton()->get_render_info(VS::INFO_MATERIAL_CHANGES_IN_FRAME);
@@ -154,7 +159,8 @@ float Performance::get_monitor(Monitor p_monitor) const {
 		case PHYSICS_3D_ISLAND_COUNT: return PhysicsServer::get_singleton()->get_process_info(PhysicsServer::INFO_ISLAND_COUNT);
 		case AUDIO_OUTPUT_LATENCY: return AudioServer::get_singleton()->get_output_latency();
 
-		default: {}
+		default: {
+		}
 	}
 
 	return 0;
@@ -182,6 +188,7 @@ Performance::MonitorType Performance::get_monitor_type(Monitor p_monitor) const
 		MONITOR_TYPE_QUANTITY,
 		MONITOR_TYPE_QUANTITY,
 		MONITOR_TYPE_QUANTITY,
+		MONITOR_TYPE_QUANTITY,
 		MONITOR_TYPE_MEMORY,
 		MONITOR_TYPE_MEMORY,
 		MONITOR_TYPE_MEMORY,
diff --git a/main/performance.h b/main/performance.h
index 850c4c2d52..912e005c53 100644
--- a/main/performance.h
+++ b/main/performance.h
@@ -43,6 +43,8 @@ class Performance : public Object {
 	static Performance *singleton;
 	static void _bind_methods();
 
+	float _get_node_count() const;
+
 	float _process_time;
 	float _physics_process_time;
 
@@ -60,6 +62,7 @@ public:
 		OBJECT_COUNT,
 		OBJECT_RESOURCE_COUNT,
 		OBJECT_NODE_COUNT,
+		OBJECT_ORPHAN_NODE_COUNT,
 		RENDER_OBJECTS_IN_FRAME,
 		RENDER_VERTICES_IN_FRAME,
 		RENDER_MATERIAL_CHANGES_IN_FRAME,
diff --git a/main/tests/test_gdscript.cpp b/main/tests/test_gdscript.cpp
index 27180f84aa..87bd640001 100644
--- a/main/tests/test_gdscript.cpp
+++ b/main/tests/test_gdscript.cpp
@@ -127,6 +127,7 @@ static String _parser_expr(const GDScriptParser::Node *p_expr) {
 
 				case GDScriptParser::OperatorNode::OP_PARENT_CALL:
 					txt += ".";
+					FALLTHROUGH;
 				case GDScriptParser::OperatorNode::OP_CALL: {
 
 					ERR_FAIL_COND_V(c_node->arguments.size() < 1, "");
@@ -283,10 +284,16 @@ static String _parser_expr(const GDScriptParser::Node *p_expr) {
 				case GDScriptParser::OperatorNode::OP_BIT_XOR: {
 					txt = _parser_expr(c_node->arguments[0]) + "^" + _parser_expr(c_node->arguments[1]);
 				} break;
-				default: {}
+				default: {
+				}
 			}
 
 		} break;
+		case GDScriptParser::Node::TYPE_CAST: {
+			const GDScriptParser::CastNode *cast_node = static_cast<const GDScriptParser::CastNode *>(p_expr);
+			txt = _parser_expr(cast_node->source_node) + " as " + cast_node->cast_type.to_string();
+
+		} break;
 		case GDScriptParser::Node::TYPE_NEWLINE: {
 
 			//skippie
@@ -667,6 +674,17 @@ static void _disassemble_class(const Ref<GDScript> &p_class, const Vector<String
 					incr += 2;
 
 				} break;
+				case GDScriptFunction::OPCODE_CAST_TO_SCRIPT: {
+
+					txt += " cast ";
+					txt += DADDR(3);
+					txt += "=";
+					txt += DADDR(1);
+					txt += " as ";
+					txt += DADDR(2);
+					incr += 4;
+
+				} break;
 				case GDScriptFunction::OPCODE_CONSTRUCT: {
 
 					Variant::Type t = Variant::Type(code[ip + 1]);
@@ -1016,19 +1034,17 @@ MainLoop *test(TestType p_type) {
 			return NULL;
 		}
 
-		GDScript *script = memnew(GDScript);
+		Ref<GDScript> gds;
+		gds.instance();
 
 		GDScriptCompiler gdc;
-		err = gdc.compile(&parser, script);
+		err = gdc.compile(&parser, gds.ptr());
 		if (err) {
 
 			print_line("Compile Error:\n" + itos(gdc.get_error_line()) + ":" + itos(gdc.get_error_column()) + ":" + gdc.get_error());
-			memdelete(script);
 			return NULL;
 		}
 
-		Ref<GDScript> gds = Ref<GDScript>(script);
-
 		Ref<GDScript> current = gds;
 
 		while (current.is_valid()) {
diff --git a/main/tests/test_string.cpp b/main/tests/test_string.cpp
index 3465fd783e..531887a452 100644
--- a/main/tests/test_string.cpp
+++ b/main/tests/test_string.cpp
@@ -33,6 +33,7 @@
 //#include "core/math/math_funcs.h"
 #include "core/io/ip_address.h"
 #include "core/os/os.h"
+#include "modules/regex/regex.h"
 #include <stdio.h>
 
 #include "test_string.h"
@@ -429,9 +430,20 @@ bool test_25() {
 
 bool test_26() {
 
-	//TODO: Do replacement RegEx test
-	return true;
-};
+	OS::get_singleton()->print("\n\nTest 26: RegEx substitution\n");
+
+	String s = "Double all the vowels.";
+
+	OS::get_singleton()->print("\tString: %ls\n", s.c_str());
+	OS::get_singleton()->print("\tRepeating instances of 'aeiou' once\n");
+
+	RegEx re("(?<vowel>[aeiou])");
+	s = re.sub(s, "$0$vowel", true);
+
+	OS::get_singleton()->print("\tResult: %ls\n", s.c_str());
+
+	return (s == "Doouublee aall thee vooweels.");
+}
 
 struct test_27_data {
 	char const *data;
@@ -1053,6 +1065,19 @@ bool test_33() {
 	return empty.parse_utf8(NULL, -1) == true;
 }
 
+bool test_34() {
+	OS::get_singleton()->print("\n\nTest 34: Cyrillic to_lower()\n");
+
+	String upper = L"�БВГДЕ�ЖЗИЙКЛМ�ОПРСТУФХЦЧШЩЪЫЬЭЮЯ";
+	String lower = L"абвгдеёжзийклмнопр�туфхцчшщъыь�ю�";
+
+	String test = upper.to_lower();
+
+	bool state = test == lower;
+
+	return state;
+}
+
 typedef bool (*TestFunc)(void);
 
 TestFunc test_funcs[] = {
@@ -1090,6 +1115,7 @@ TestFunc test_funcs[] = {
 	test_31,
 	test_32,
 	test_33,
+	test_34,
 	0
 
 };
diff --git a/methods.py b/methods.py
index 7465962187..11efd68ce4 100644
--- a/methods.py
+++ b/methods.py
@@ -4,7 +4,6 @@ import sys
 import re
 import glob
 import string
-import datetime
 import subprocess
 from compat import iteritems, isbasestring, decode_utf8
 
@@ -25,10 +24,16 @@ def disable_warnings(self):
         # We have to remove existing warning level defines before appending /w,
         # otherwise we get: "warning D9025 : overriding '/W3' with '/w'"
         warn_flags = ['/Wall', '/W4', '/W3', '/W2', '/W1', '/WX']
-        self['CCFLAGS'] = [x for x in self['CCFLAGS'] if not x in warn_flags]
         self.Append(CCFLAGS=['/w'])
+        self.Append(CFLAGS=['/w'])
+        self.Append(CPPFLAGS=['/w'])
+        self['CCFLAGS'] = [x for x in self['CCFLAGS'] if not x in warn_flags]
+        self['CFLAGS'] = [x for x in self['CFLAGS'] if not x in warn_flags]
+        self['CXXFLAGS'] = [x for x in self['CXXFLAGS'] if not x in warn_flags]
     else:
         self.Append(CCFLAGS=['-w'])
+        self.Append(CFLAGS=['-w'])
+        self.Append(CXXFLAGS=['-w'])
 
 
 def add_module_version_string(self,s):
@@ -212,70 +217,6 @@ def win32_spawn(sh, escape, cmd, args, spawnenv):
 	return exit_code
 """
 
-def android_add_flat_dir(self, dir):
-    if (dir not in self.android_flat_dirs):
-        self.android_flat_dirs.append(dir)
-
-def android_add_maven_repository(self, url):
-    if (url not in self.android_maven_repos):
-        self.android_maven_repos.append(url)
-
-def android_add_dependency(self, depline):
-    if (depline not in self.android_dependencies):
-        self.android_dependencies.append(depline)
-
-def android_add_java_dir(self, subpath):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + subpath
-    if (base_path not in self.android_java_dirs):
-        self.android_java_dirs.append(base_path)
-
-def android_add_res_dir(self, subpath):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + subpath
-    if (base_path not in self.android_res_dirs):
-        self.android_res_dirs.append(base_path)
-
-def android_add_asset_dir(self, subpath):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + subpath
-    if (base_path not in self.android_asset_dirs):
-        self.android_asset_dirs.append(base_path)
-
-def android_add_aidl_dir(self, subpath):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + subpath
-    if (base_path not in self.android_aidl_dirs):
-        self.android_aidl_dirs.append(base_path)
-
-def android_add_jni_dir(self, subpath):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + subpath
-    if (base_path not in self.android_jni_dirs):
-        self.android_jni_dirs.append(base_path)
-
-def android_add_gradle_plugin(self, plugin):
-    if (plugin not in self.android_gradle_plugins):
-        self.android_gradle_plugins.append(plugin)
-
-def android_add_gradle_classpath(self, classpath):
-    if (classpath not in self.android_gradle_classpath):
-        self.android_gradle_classpath.append(classpath)
-
-def android_add_default_config(self, config):
-    if (config not in self.android_default_config):
-        self.android_default_config.append(config)
-
-def android_add_to_manifest(self, file):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + file
-    with open(base_path, "r") as f:
-        self.android_manifest_chunk += f.read()
-
-def android_add_to_permissions(self, file):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + file
-    with open(base_path, "r") as f:
-        self.android_permission_chunk += f.read()
-
-def android_add_to_attributes(self, file):
-    base_path = self.Dir(".").abspath + "/modules/" + self.current_module + "/" + file
-    with open(base_path, "r") as f:
-        self.android_appattributes_chunk += f.read()
-
 def disable_module(self):
     self.disabled_modules.append(self.current_module)
 
@@ -668,5 +609,8 @@ def get_compiler_version(env):
     else:
         return None
 
-def use_gcc(env):
+def using_gcc(env):
     return 'gcc' in os.path.basename(env["CC"])
+
+def using_clang(env):
+    return 'clang' in os.path.basename(env["CC"])
diff --git a/misc/dist/linux/org.godotengine.Godot.xml b/misc/dist/linux/x-godot-project.xml
index 0572e4e54e..0572e4e54e 100644
--- a/misc/dist/linux/org.godotengine.Godot.xml
+++ b/misc/dist/linux/x-godot-project.xml
diff --git a/misc/dist/osx_tools.app/Contents/Info.plist b/misc/dist/osx_tools.app/Contents/Info.plist
index 1a116527bb..bb22f1807c 100755
--- a/misc/dist/osx_tools.app/Contents/Info.plist
+++ b/misc/dist/osx_tools.app/Contents/Info.plist
@@ -24,6 +24,8 @@
 	<string>godot</string>
 	<key>CFBundleVersion</key>
 	<string>3.2</string>
+	<key>NSRequiresAquaSystemAppearance</key>
+    	<false />
 	<key>NSHumanReadableCopyright</key>
 	<string>© 2007-2019 Juan Linietsky, Ariel Manzur &amp; Godot Engine contributors</string>
 	<key>LSMinimumSystemVersion</key>
diff --git a/modules/assimp/SCsub b/modules/assimp/SCsub
new file mode 100644
index 0000000000..0da7e432e2
--- /dev/null
+++ b/modules/assimp/SCsub
@@ -0,0 +1,95 @@
+#!/usr/bin/env python
+
+Import('env')
+Import('env_modules')
+
+env_assimp = env_modules.Clone()
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/include'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/code/Importer/IFC'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/misc'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/code'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/irrXML/'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/unzip/'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/code/Importer/STEPParser'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/zlib/'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/openddlparser/include'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/rapidjson/include'])
+env_assimp.Prepend(CPPPATH=['.'])
+#env_assimp.Append(CPPFLAGS=['-DASSIMP_DOUBLE_PRECISION']) # TODO default to what godot is compiled with for future double support
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_BOOST_WORKAROUND'])
+env_assimp.Append(CPPFLAGS=['-DOPENDDLPARSER_BUILD'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_OWN_ZLIB'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_EXPORT'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_X_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_AMF_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_3DS_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MD3_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MD5_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MDL_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MD2_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_PLY_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_ASE_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_OBJ_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_HMP_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_SMD_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MDC_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MD5_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_STL_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_LWO_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_DXF_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_NFF_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_RAW_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_SIB_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_OFF_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_AC_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_BVH_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_IRRMESH_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_IRR_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_Q3D_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_B3D_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_COLLADA_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_TERRAGEN_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_CSM_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_3D_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_LWS_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_OGRE_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_OPENGEX_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_MS3D_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_COB_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_BLEND_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_Q3BSP_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_NDO_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_STEP_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_IFC_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_XGL_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_ASSBIN_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_GLTF_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_C4D_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_3MF_IMPORTER'])
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_NO_X3D_IMPORTER'])
+
+env_assimp.Append(CPPFLAGS=['-DASSIMP_BUILD_SINGLETHREADED'])
+
+if (not env.msvc):
+    env_assimp.Append(CXXFLAGS=['-std=c++11'])
+elif (env.msvc == False and env['platform'] == 'windows'):
+    env_assimp.Append(LDFLAGS=['-pthread'])
+
+if(env['platform'] == 'windows'):
+    env_assimp.Append(CPPFLAGS=['-DPLATFORM_WINDOWS'])
+    env_assimp.Append(CPPFLAGS=['-DPLATFORM=WINDOWS'])
+elif(env['platform'] == 'x11'):
+    env_assimp.Append(CPPFLAGS=['-DPLATFORM_LINUX'])
+    env_assimp.Append(CPPFLAGS=['-DPLATFORM=LINUX'])
+elif(env['platform'] == 'osx'):
+    env_assimp.Append(CPPFLAGS=['-DPLATFORM_DARWIN'])
+    env_assimp.Append(CPPFLAGS=['-DPLATFORM=DARWIN'])
+    
+env_thirdparty = env_assimp.Clone()
+env_thirdparty.disable_warnings()
+env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/*.cpp'))
+
+# Godot's own source files
+env_assimp.add_source_files(env.modules_sources, "*.cpp")
diff --git a/modules/assimp/config.py b/modules/assimp/config.py
new file mode 100644
index 0000000000..098f1eafa9
--- /dev/null
+++ b/modules/assimp/config.py
@@ -0,0 +1,5 @@
+def can_build(env, platform):
+    return env['tools']
+
+def configure(env):
+    pass
diff --git a/modules/assimp/editor_scene_importer_assimp.cpp b/modules/assimp/editor_scene_importer_assimp.cpp
new file mode 100644
index 0000000000..8d82fb2eeb
--- /dev/null
+++ b/modules/assimp/editor_scene_importer_assimp.cpp
@@ -0,0 +1,1766 @@
+/*************************************************************************/
+/*  editor_scene_importer_assimp.cpp                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "assimp/DefaultLogger.hpp"
+#include "assimp/Importer.hpp"
+#include "assimp/LogStream.hpp"
+#include "assimp/Logger.hpp"
+#include "assimp/SceneCombiner.h"
+#include "assimp/cexport.h"
+#include "assimp/cimport.h"
+#include "assimp/matrix4x4.h"
+#include "assimp/pbrmaterial.h"
+#include "assimp/postprocess.h"
+#include "assimp/scene.h"
+
+#include "core/bind/core_bind.h"
+#include "core/io/image_loader.h"
+#include "editor/editor_file_system.h"
+#include "editor/import/resource_importer_scene.h"
+#include "editor_scene_importer_assimp.h"
+#include "editor_settings.h"
+#include "scene/3d/camera.h"
+#include "scene/3d/light.h"
+#include "scene/3d/mesh_instance.h"
+#include "scene/animation/animation_player.h"
+#include "scene/main/node.h"
+#include "scene/resources/material.h"
+#include "scene/resources/surface_tool.h"
+#include "zutil.h"
+#include <string>
+
+void EditorSceneImporterAssimp::get_extensions(List<String> *r_extensions) const {
+
+	const String import_setting_string = "filesystem/import/open_asset_import/";
+
+	Map<String, ImportFormat> import_format;
+	{
+		Vector<String> exts;
+		exts.push_back("fbx");
+		ImportFormat import = { exts, true };
+		import_format.insert("fbx", import);
+	}
+	{
+		Vector<String> exts;
+		exts.push_back("pmx");
+		ImportFormat import = { exts, true };
+		import_format.insert("mmd", import);
+	}
+	for (Map<String, ImportFormat>::Element *E = import_format.front(); E; E = E->next()) {
+		_register_project_setting_import(E->key(), import_setting_string, E->get().extensions, r_extensions, E->get().is_default);
+	}
+}
+
+void EditorSceneImporterAssimp::_register_project_setting_import(const String generic, const String import_setting_string, const Vector<String> &exts, List<String> *r_extensions, const bool p_enabled) const {
+	const String use_generic = "use_" + generic;
+	_GLOBAL_DEF(import_setting_string + use_generic, p_enabled, true);
+	if (ProjectSettings::get_singleton()->get(import_setting_string + use_generic)) {
+		for (int32_t i = 0; i < exts.size(); i++) {
+			r_extensions->push_back(exts[i]);
+		}
+	}
+}
+
+uint32_t EditorSceneImporterAssimp::get_import_flags() const {
+	return IMPORT_SCENE;
+}
+
+AssimpStream::AssimpStream() {
+	// empty
+}
+
+AssimpStream::~AssimpStream() {
+	// empty
+}
+
+void AssimpStream::write(const char *message) {
+	print_verbose(String("Open Asset Import: ") + String(message).strip_edges());
+}
+
+void EditorSceneImporterAssimp::_bind_methods() {
+}
+
+Node *EditorSceneImporterAssimp::import_scene(const String &p_path, uint32_t p_flags, int p_bake_fps, List<String> *r_missing_deps, Error *r_err) {
+	Assimp::Importer importer;
+	std::wstring w_path = ProjectSettings::get_singleton()->globalize_path(p_path).c_str();
+	std::string s_path(w_path.begin(), w_path.end());
+	importer.SetPropertyBool(AI_CONFIG_PP_FD_REMOVE, true);
+	// Cannot remove pivot points because the static mesh will be in the wrong place
+	importer.SetPropertyBool(AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS, false);
+	int32_t max_bone_weights = 4;
+	//if (p_flags & IMPORT_ANIMATION_EIGHT_WEIGHTS) {
+	//	const int eight_bones = 8;
+	//	importer.SetPropertyBool(AI_CONFIG_PP_LBW_MAX_WEIGHTS, eight_bones);
+	//	max_bone_weights = eight_bones;
+	//}
+
+	importer.SetPropertyInteger(AI_CONFIG_PP_SBP_REMOVE, aiPrimitiveType_LINE | aiPrimitiveType_POINT);
+	//importer.SetPropertyFloat(AI_CONFIG_PP_DB_THRESHOLD, 1.0f);
+	int32_t post_process_Steps = aiProcess_CalcTangentSpace |
+								 //aiProcess_FlipUVs |
+								 //aiProcess_FlipWindingOrder |
+								 //aiProcess_DropNormals |
+								 //aiProcess_GenSmoothNormals |
+								 aiProcess_JoinIdenticalVertices |
+								 aiProcess_ImproveCacheLocality |
+								 aiProcess_LimitBoneWeights |
+								 //aiProcess_RemoveRedundantMaterials | // Causes a crash
+								 aiProcess_SplitLargeMeshes |
+								 aiProcess_Triangulate |
+								 aiProcess_GenUVCoords |
+								 //aiProcess_FindDegenerates |
+								 aiProcess_SortByPType |
+								 aiProcess_FindInvalidData |
+								 aiProcess_TransformUVCoords |
+								 aiProcess_FindInstances |
+								 //aiProcess_FixInfacingNormals |
+								 //aiProcess_ValidateDataStructure |
+								 aiProcess_OptimizeMeshes |
+								 //aiProcess_OptimizeGraph |
+								 //aiProcess_Debone |
+								 aiProcess_EmbedTextures |
+								 aiProcess_SplitByBoneCount |
+								 0;
+	const aiScene *scene = importer.ReadFile(s_path.c_str(),
+			post_process_Steps);
+	ERR_EXPLAIN(String("Open Asset Import failed to open: ") + String(importer.GetErrorString()));
+	ERR_FAIL_COND_V(scene == NULL, NULL);
+	return _generate_scene(p_path, scene, p_flags, p_bake_fps, max_bone_weights);
+}
+
+template <class T>
+struct EditorSceneImporterAssetImportInterpolate {
+
+	T lerp(const T &a, const T &b, float c) const {
+
+		return a + (b - a) * c;
+	}
+
+	T catmull_rom(const T &p0, const T &p1, const T &p2, const T &p3, float t) {
+
+		float t2 = t * t;
+		float t3 = t2 * t;
+
+		return 0.5f * ((2.0f * p1) + (-p0 + p2) * t + (2.0f * p0 - 5.0f * p1 + 4 * p2 - p3) * t2 + (-p0 + 3.0f * p1 - 3.0f * p2 + p3) * t3);
+	}
+
+	T bezier(T start, T control_1, T control_2, T end, float t) {
+		/* Formula from Wikipedia article on Bezier curves. */
+		real_t omt = (1.0 - t);
+		real_t omt2 = omt * omt;
+		real_t omt3 = omt2 * omt;
+		real_t t2 = t * t;
+		real_t t3 = t2 * t;
+
+		return start * omt3 + control_1 * omt2 * t * 3.0 + control_2 * omt * t2 * 3.0 + end * t3;
+	}
+};
+
+//thank you for existing, partial specialization
+template <>
+struct EditorSceneImporterAssetImportInterpolate<Quat> {
+
+	Quat lerp(const Quat &a, const Quat &b, float c) const {
+		ERR_FAIL_COND_V(!a.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!b.is_normalized(), Quat());
+
+		return a.slerp(b, c).normalized();
+	}
+
+	Quat catmull_rom(const Quat &p0, const Quat &p1, const Quat &p2, const Quat &p3, float c) {
+		ERR_FAIL_COND_V(!p1.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!p2.is_normalized(), Quat());
+
+		return p1.slerp(p2, c).normalized();
+	}
+
+	Quat bezier(Quat start, Quat control_1, Quat control_2, Quat end, float t) {
+		ERR_FAIL_COND_V(!start.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!end.is_normalized(), Quat());
+
+		return start.slerp(end, t).normalized();
+	}
+};
+
+template <class T>
+T EditorSceneImporterAssimp::_interpolate_track(const Vector<float> &p_times, const Vector<T> &p_values, float p_time, AssetImportAnimation::Interpolation p_interp) {
+	//could use binary search, worth it?
+	int idx = -1;
+	for (int i = 0; i < p_times.size(); i++) {
+		if (p_times[i] > p_time)
+			break;
+		idx++;
+	}
+
+	EditorSceneImporterAssetImportInterpolate<T> interp;
+
+	switch (p_interp) {
+		case AssetImportAnimation::INTERP_LINEAR: {
+
+			if (idx == -1) {
+				return p_values[0];
+			} else if (idx >= p_times.size() - 1) {
+				return p_values[p_times.size() - 1];
+			}
+
+			float c = (p_time - p_times[idx]) / (p_times[idx + 1] - p_times[idx]);
+
+			return interp.lerp(p_values[idx], p_values[idx + 1], c);
+
+		} break;
+		case AssetImportAnimation::INTERP_STEP: {
+
+			if (idx == -1) {
+				return p_values[0];
+			} else if (idx >= p_times.size() - 1) {
+				return p_values[p_times.size() - 1];
+			}
+
+			return p_values[idx];
+
+		} break;
+		case AssetImportAnimation::INTERP_CATMULLROMSPLINE: {
+
+			if (idx == -1) {
+				return p_values[1];
+			} else if (idx >= p_times.size() - 1) {
+				return p_values[1 + p_times.size() - 1];
+			}
+
+			float c = (p_time - p_times[idx]) / (p_times[idx + 1] - p_times[idx]);
+
+			return interp.catmull_rom(p_values[idx - 1], p_values[idx], p_values[idx + 1], p_values[idx + 3], c);
+
+		} break;
+		case AssetImportAnimation::INTERP_CUBIC_SPLINE: {
+
+			if (idx == -1) {
+				return p_values[1];
+			} else if (idx >= p_times.size() - 1) {
+				return p_values[(p_times.size() - 1) * 3 + 1];
+			}
+
+			float c = (p_time - p_times[idx]) / (p_times[idx + 1] - p_times[idx]);
+
+			T from = p_values[idx * 3 + 1];
+			T c1 = from + p_values[idx * 3 + 2];
+			T to = p_values[idx * 3 + 4];
+			T c2 = to + p_values[idx * 3 + 3];
+
+			return interp.bezier(from, c1, c2, to, c);
+
+		} break;
+	}
+
+	ERR_FAIL_V(p_values[0]);
+}
+
+void EditorSceneImporterAssimp::_generate_bone_groups(ImportState &state, const aiNode *p_assimp_node, Map<String, int> &ownership, Map<String, Transform> &bind_xforms) {
+
+	Transform mesh_offset = _get_global_assimp_node_transform(p_assimp_node);
+	//mesh_offset.basis = Basis();
+	for (uint32_t i = 0; i < p_assimp_node->mNumMeshes; i++) {
+		const aiMesh *mesh = state.assimp_scene->mMeshes[i];
+		int owned_by = -1;
+		for (uint32_t j = 0; j < mesh->mNumBones; j++) {
+			const aiBone *bone = mesh->mBones[j];
+			String name = _assimp_get_string(bone->mName);
+
+			if (ownership.has(name)) {
+				owned_by = ownership[name];
+				break;
+			}
+		}
+
+		if (owned_by == -1) { //no owned, create new unique id
+			owned_by = 1;
+			for (Map<String, int>::Element *E = ownership.front(); E; E = E->next()) {
+				owned_by = MAX(E->get() + 1, owned_by);
+			}
+		}
+
+		for (uint32_t j = 0; j < mesh->mNumBones; j++) {
+			const aiBone *bone = mesh->mBones[j];
+			String name = _assimp_get_string(bone->mName);
+			ownership[name] = owned_by;
+			//store the actuall full path for the bone transform
+			//when skeleton finds it's place in the tree, it will be restored
+			bind_xforms[name] = mesh_offset * _assimp_matrix_transform(bone->mOffsetMatrix);
+		}
+	}
+
+	for (size_t i = 0; i < p_assimp_node->mNumChildren; i++) {
+		_generate_bone_groups(state, p_assimp_node->mChildren[i], ownership, bind_xforms);
+	}
+}
+
+void EditorSceneImporterAssimp::_fill_node_relationships(ImportState &state, const aiNode *p_assimp_node, Map<String, int> &ownership, Map<int, int> &skeleton_map, int p_skeleton_id, Skeleton *p_skeleton, const String &p_parent_name, int &holecount, const Vector<SkeletonHole> &p_holes, const Map<String, Transform> &bind_xforms) {
+
+	String name = _assimp_get_string(p_assimp_node->mName);
+	if (name == String()) {
+		name = "AuxiliaryBone" + itos(holecount++);
+	}
+
+	Transform pose = _assimp_matrix_transform(p_assimp_node->mTransformation);
+
+	if (!ownership.has(name)) {
+		//not a bone, it's a hole
+		Vector<SkeletonHole> holes = p_holes;
+		SkeletonHole hole; //add a new one
+		hole.name = name;
+		hole.pose = pose;
+		hole.node = p_assimp_node;
+		hole.parent = p_parent_name;
+		holes.push_back(hole);
+
+		for (size_t i = 0; i < p_assimp_node->mNumChildren; i++) {
+			_fill_node_relationships(state, p_assimp_node->mChildren[i], ownership, skeleton_map, p_skeleton_id, p_skeleton, name, holecount, holes, bind_xforms);
+		}
+
+		return;
+	} else if (ownership[name] != p_skeleton_id) {
+		//oh, it's from another skeleton? fine.. reparent all bones to this skeleton.
+		int prev_owner = ownership[name];
+		ERR_EXPLAIN("A previous skeleton exists for bone '" + name + "', this type of skeleton layout is unsupported.");
+		ERR_FAIL_COND(skeleton_map.has(prev_owner));
+		for (Map<String, int>::Element *E = ownership.front(); E; E = E->next()) {
+			if (E->get() == prev_owner) {
+				E->get() = p_skeleton_id;
+			}
+		}
+	}
+
+	//valid bone, first fill holes if needed
+	for (int i = 0; i < p_holes.size(); i++) {
+
+		int bone_idx = p_skeleton->get_bone_count();
+		p_skeleton->add_bone(p_holes[i].name);
+		int parent_idx = p_skeleton->find_bone(p_holes[i].parent);
+		if (parent_idx >= 0) {
+			p_skeleton->set_bone_parent(bone_idx, parent_idx);
+		}
+
+		Transform pose_transform = _get_global_assimp_node_transform(p_holes[i].node);
+		p_skeleton->set_bone_rest(bone_idx, pose_transform);
+
+		state.bone_owners[p_holes[i].name] = skeleton_map[p_skeleton_id];
+	}
+
+	//finally fill bone
+
+	int bone_idx = p_skeleton->get_bone_count();
+	p_skeleton->add_bone(name);
+	int parent_idx = p_skeleton->find_bone(p_parent_name);
+	if (parent_idx >= 0) {
+		p_skeleton->set_bone_parent(bone_idx, parent_idx);
+	}
+	//p_skeleton->set_bone_pose(bone_idx, pose);
+	if (bind_xforms.has(name)) {
+		//for now this is the full path to the bone in rest pose
+		//when skeleton finds it's place in the tree, it will get fixed
+		p_skeleton->set_bone_rest(bone_idx, bind_xforms[name]);
+	}
+	state.bone_owners[name] = skeleton_map[p_skeleton_id];
+	//go to children
+	for (size_t i = 0; i < p_assimp_node->mNumChildren; i++) {
+		_fill_node_relationships(state, p_assimp_node->mChildren[i], ownership, skeleton_map, p_skeleton_id, p_skeleton, name, holecount, Vector<SkeletonHole>(), bind_xforms);
+	}
+}
+
+void EditorSceneImporterAssimp::_generate_skeletons(ImportState &state, const aiNode *p_assimp_node, Map<String, int> &ownership, Map<int, int> &skeleton_map, const Map<String, Transform> &bind_xforms) {
+
+	//find skeletons at this level, there may be multiple root nodes for each
+	Map<int, List<aiNode *> > skeletons_found;
+	for (size_t i = 0; i < p_assimp_node->mNumChildren; i++) {
+		String name = _assimp_get_string(p_assimp_node->mChildren[i]->mName);
+		if (ownership.has(name)) {
+			int skeleton = ownership[name];
+			if (!skeletons_found.has(skeleton)) {
+				skeletons_found[skeleton] = List<aiNode *>();
+			}
+			skeletons_found[skeleton].push_back(p_assimp_node->mChildren[i]);
+		}
+	}
+
+	//go via the potential skeletons found and generate the actual skeleton
+	for (Map<int, List<aiNode *> >::Element *E = skeletons_found.front(); E; E = E->next()) {
+		ERR_CONTINUE(skeleton_map.has(E->key())); //skeleton already exists? this can't be.. skip
+		Skeleton *skeleton = memnew(Skeleton);
+		//this the only way to reliably use multiple meshes with one skeleton, at the cost of less precision
+		skeleton->set_use_bones_in_world_transform(true);
+		skeleton_map[E->key()] = state.skeletons.size();
+		state.skeletons.push_back(skeleton);
+		int holecount = 1;
+		//fill the bones and their relationships
+		for (List<aiNode *>::Element *F = E->get().front(); F; F = F->next()) {
+			_fill_node_relationships(state, F->get(), ownership, skeleton_map, E->key(), skeleton, "", holecount, Vector<SkeletonHole>(), bind_xforms);
+		}
+	}
+
+	//go to the children
+	for (uint32_t i = 0; i < p_assimp_node->mNumChildren; i++) {
+		String name = _assimp_get_string(p_assimp_node->mChildren[i]->mName);
+		if (ownership.has(name)) {
+			continue; //a bone, so don't bother with this
+		}
+		_generate_skeletons(state, p_assimp_node->mChildren[i], ownership, skeleton_map, bind_xforms);
+	}
+}
+
+Spatial *EditorSceneImporterAssimp::_generate_scene(const String &p_path, const aiScene *scene, const uint32_t p_flags, int p_bake_fps, const int32_t p_max_bone_weights) {
+	ERR_FAIL_COND_V(scene == NULL, NULL);
+
+	ImportState state;
+	state.path = p_path;
+	state.assimp_scene = scene;
+	state.max_bone_weights = p_max_bone_weights;
+	state.root = memnew(Spatial);
+	state.fbx = false;
+	state.animation_player = NULL;
+
+	real_t scale_factor = 1.0f;
+	{
+		//handle scale
+		String ext = p_path.get_file().get_extension().to_lower();
+		if (ext == "fbx") {
+			if (scene->mMetaData != NULL) {
+				float factor = 1.0;
+				scene->mMetaData->Get("UnitScaleFactor", factor);
+				scale_factor = factor * 0.01f;
+			}
+			state.fbx = true;
+		}
+	}
+
+	state.root->set_scale(Vector3(scale_factor, scale_factor, scale_factor));
+
+	//fill light map cache
+	for (size_t l = 0; l < scene->mNumLights; l++) {
+
+		aiLight *ai_light = scene->mLights[l];
+		ERR_CONTINUE(ai_light == NULL);
+		state.light_cache[_assimp_get_string(ai_light->mName)] = l;
+	}
+
+	//fill camera cache
+	for (size_t c = 0; c < scene->mNumCameras; c++) {
+		aiCamera *ai_camera = scene->mCameras[c];
+		ERR_CONTINUE(ai_camera == NULL);
+		state.camera_cache[_assimp_get_string(ai_camera->mName)] = c;
+	}
+
+	if (scene->mRootNode) {
+		Map<String, Transform> bind_xforms; //temporary map to store bind transforms
+		//guess the skeletons, since assimp does not really support them directly
+		Map<String, int> ownership; //bone names to groups
+		//fill this map with bone names and which group where they detected to, going mesh by mesh
+		_generate_bone_groups(state, state.assimp_scene->mRootNode, ownership, bind_xforms);
+		Map<int, int> skeleton_map; //maps previously created groups to actual skeletons
+		//generates the skeletons when bones are found in the hierarchy, and follows them (including gaps/holes).
+		_generate_skeletons(state, state.assimp_scene->mRootNode, ownership, skeleton_map, bind_xforms);
+
+		//generate nodes
+		for (uint32_t i = 0; i < scene->mRootNode->mNumChildren; i++) {
+			_generate_node(state, scene->mRootNode->mChildren[i], state.root);
+		}
+
+		//assign skeletons to nodes
+
+		for (Map<MeshInstance *, Skeleton *>::Element *E = state.mesh_skeletons.front(); E; E = E->next()) {
+			MeshInstance *mesh = E->key();
+			Skeleton *skeleton = E->get();
+			NodePath skeleton_path = mesh->get_path_to(skeleton);
+			mesh->set_skeleton_path(skeleton_path);
+		}
+	}
+
+	if (p_flags & IMPORT_ANIMATION && scene->mNumAnimations) {
+
+		state.animation_player = memnew(AnimationPlayer);
+		state.root->add_child(state.animation_player);
+		state.animation_player->set_owner(state.root);
+
+		for (uint32_t i = 0; i < scene->mNumAnimations; i++) {
+			_import_animation(state, i, p_bake_fps);
+		}
+	}
+
+	return state.root;
+}
+
+void EditorSceneImporterAssimp::_insert_animation_track(ImportState &scene, const aiAnimation *assimp_anim, int p_track, int p_bake_fps, Ref<Animation> animation, float ticks_per_second, Skeleton *p_skeleton, const NodePath &p_path, const String &p_name) {
+
+	const aiNodeAnim *assimp_track = assimp_anim->mChannels[p_track];
+	//make transform track
+	int track_idx = animation->get_track_count();
+	animation->add_track(Animation::TYPE_TRANSFORM);
+	animation->track_set_path(track_idx, p_path);
+	//first determine animation length
+
+	float increment = 1.0 / float(p_bake_fps);
+	float time = 0.0;
+
+	bool last = false;
+
+	int skeleton_bone = -1;
+
+	if (p_skeleton) {
+		skeleton_bone = p_skeleton->find_bone(p_name);
+	}
+
+	Vector<Vector3> pos_values;
+	Vector<float> pos_times;
+	Vector<Vector3> scale_values;
+	Vector<float> scale_times;
+	Vector<Quat> rot_values;
+	Vector<float> rot_times;
+
+	for (size_t p = 0; p < assimp_track->mNumPositionKeys; p++) {
+		aiVector3D pos = assimp_track->mPositionKeys[p].mValue;
+		pos_values.push_back(Vector3(pos.x, pos.y, pos.z));
+		pos_times.push_back(assimp_track->mPositionKeys[p].mTime / ticks_per_second);
+	}
+
+	for (size_t r = 0; r < assimp_track->mNumRotationKeys; r++) {
+		aiQuaternion quat = assimp_track->mRotationKeys[r].mValue;
+		rot_values.push_back(Quat(quat.x, quat.y, quat.z, quat.w).normalized());
+		rot_times.push_back(assimp_track->mRotationKeys[r].mTime / ticks_per_second);
+	}
+
+	for (size_t sc = 0; sc < assimp_track->mNumScalingKeys; sc++) {
+		aiVector3D scale = assimp_track->mScalingKeys[sc].mValue;
+		scale_values.push_back(Vector3(scale.x, scale.y, scale.z));
+		scale_times.push_back(assimp_track->mScalingKeys[sc].mTime / ticks_per_second);
+	}
+	while (true) {
+		Vector3 pos;
+		Quat rot;
+		Vector3 scale(1, 1, 1);
+
+		if (pos_values.size()) {
+			pos = _interpolate_track<Vector3>(pos_times, pos_values, time, AssetImportAnimation::INTERP_LINEAR);
+		}
+
+		if (rot_values.size()) {
+			rot = _interpolate_track<Quat>(rot_times, rot_values, time, AssetImportAnimation::INTERP_LINEAR).normalized();
+		}
+
+		if (scale_values.size()) {
+			scale = _interpolate_track<Vector3>(scale_times, scale_values, time, AssetImportAnimation::INTERP_LINEAR);
+		}
+
+		if (skeleton_bone >= 0) {
+			Transform xform;
+			xform.basis.set_quat_scale(rot, scale);
+			xform.origin = pos;
+
+			Transform rest_xform = p_skeleton->get_bone_rest(skeleton_bone);
+			xform = rest_xform.affine_inverse() * xform;
+			rot = xform.basis.get_rotation_quat();
+			scale = xform.basis.get_scale();
+			pos = xform.origin;
+		}
+
+		rot.normalize();
+
+		animation->track_set_interpolation_type(track_idx, Animation::INTERPOLATION_LINEAR);
+		animation->transform_track_insert_key(track_idx, time, pos, rot, scale);
+
+		if (last) { //done this way so a key is always inserted past the end (for proper interpolation)
+			break;
+		}
+		time += increment;
+		if (time >= animation->get_length()) {
+			last = true;
+		}
+	}
+}
+
+void EditorSceneImporterAssimp::_import_animation(ImportState &state, int p_animation_index, int p_bake_fps) {
+
+	ERR_FAIL_INDEX(p_animation_index, (int)state.assimp_scene->mNumAnimations);
+
+	const aiAnimation *anim = state.assimp_scene->mAnimations[p_animation_index];
+	String name = _assimp_anim_string_to_string(anim->mName);
+	if (name == String()) {
+		name = "Animation " + itos(p_animation_index + 1);
+	}
+
+	float ticks_per_second = anim->mTicksPerSecond;
+
+	if (state.assimp_scene->mMetaData != NULL && Math::is_equal_approx(ticks_per_second, 0.0f)) {
+		int32_t time_mode = 0;
+		state.assimp_scene->mMetaData->Get("TimeMode", time_mode);
+		ticks_per_second = _get_fbx_fps(time_mode, state.assimp_scene);
+	}
+
+	//?
+	//if ((p_path.get_file().get_extension().to_lower() == "glb" || p_path.get_file().get_extension().to_lower() == "gltf") && Math::is_equal_approx(ticks_per_second, 0.0f)) {
+	//	ticks_per_second = 1000.0f;
+	//}
+
+	if (Math::is_equal_approx(ticks_per_second, 0.0f)) {
+		ticks_per_second = 25.0f;
+	}
+
+	Ref<Animation> animation;
+	animation.instance();
+	animation->set_name(name);
+	animation->set_length(anim->mDuration / ticks_per_second);
+
+	//regular tracks
+
+	for (size_t i = 0; i < anim->mNumChannels; i++) {
+		const aiNodeAnim *track = anim->mChannels[i];
+		String node_name = _assimp_get_string(track->mNodeName);
+		/*
+		if (node_name.find(ASSIMP_FBX_KEY) != -1) {
+			String p_track_type = node_name.get_slice(ASSIMP_FBX_KEY, 1);
+			if (p_track_type == "_Translation" || p_track_type == "_Rotation" || p_track_type == "_Scaling") {
+				continue;
+			}
+		}
+*/
+		if (track->mNumRotationKeys == 0 && track->mNumPositionKeys == 0 && track->mNumScalingKeys == 0) {
+			continue; //do not bother
+		}
+
+		bool is_bone = state.bone_owners.has(node_name);
+		NodePath node_path;
+		Skeleton *skeleton = NULL;
+
+		if (is_bone) {
+			skeleton = state.skeletons[state.bone_owners[node_name]];
+			String path = state.root->get_path_to(skeleton);
+			path += ":" + node_name;
+			node_path = path;
+		} else {
+
+			ERR_CONTINUE(!state.node_map.has(node_name));
+			Node *node = state.node_map[node_name];
+			node_path = state.root->get_path_to(node);
+		}
+
+		_insert_animation_track(state, anim, i, p_bake_fps, animation, ticks_per_second, skeleton, node_path, node_name);
+	}
+
+	//blend shape tracks
+
+	for (size_t i = 0; i < anim->mNumMorphMeshChannels; i++) {
+
+		const aiMeshMorphAnim *anim_mesh = anim->mMorphMeshChannels[i];
+
+		const String prop_name = _assimp_get_string(anim_mesh->mName);
+		const String mesh_name = prop_name.split("*")[0];
+
+		ERR_CONTINUE(prop_name.split("*").size() != 2);
+
+		ERR_CONTINUE(!state.node_map.has(mesh_name));
+
+		const MeshInstance *mesh_instance = Object::cast_to<MeshInstance>(state.node_map[mesh_name]);
+
+		ERR_CONTINUE(mesh_instance == NULL);
+
+		String base_path = state.root->get_path_to(mesh_instance);
+
+		Ref<Mesh> mesh = mesh_instance->get_mesh();
+		ERR_CONTINUE(mesh.is_null());
+
+		//add the tracks for this mesh
+		int base_track = animation->get_track_count();
+		for (int j = 0; j < mesh->get_blend_shape_count(); j++) {
+
+			animation->add_track(Animation::TYPE_VALUE);
+			animation->track_set_path(base_track + j, base_path + ":blend_shapes/" + mesh->get_blend_shape_name(j));
+		}
+
+		for (size_t k = 0; k < anim_mesh->mNumKeys; k++) {
+			for (size_t j = 0; j < anim_mesh->mKeys[k].mNumValuesAndWeights; j++) {
+
+				float t = anim_mesh->mKeys[k].mTime / ticks_per_second;
+				float w = anim_mesh->mKeys[k].mWeights[j];
+
+				animation->track_insert_key(base_track + j, t, w);
+			}
+		}
+	}
+
+	if (animation->get_track_count()) {
+		state.animation_player->add_animation(name, animation);
+	}
+}
+
+float EditorSceneImporterAssimp::_get_fbx_fps(int32_t time_mode, const aiScene *p_scene) {
+	switch (time_mode) {
+		case AssetImportFbx::TIME_MODE_DEFAULT: return 24; //hack
+		case AssetImportFbx::TIME_MODE_120: return 120;
+		case AssetImportFbx::TIME_MODE_100: return 100;
+		case AssetImportFbx::TIME_MODE_60: return 60;
+		case AssetImportFbx::TIME_MODE_50: return 50;
+		case AssetImportFbx::TIME_MODE_48: return 48;
+		case AssetImportFbx::TIME_MODE_30: return 30;
+		case AssetImportFbx::TIME_MODE_30_DROP: return 30;
+		case AssetImportFbx::TIME_MODE_NTSC_DROP_FRAME: return 29.9700262f;
+		case AssetImportFbx::TIME_MODE_NTSC_FULL_FRAME: return 29.9700262f;
+		case AssetImportFbx::TIME_MODE_PAL: return 25;
+		case AssetImportFbx::TIME_MODE_CINEMA: return 24;
+		case AssetImportFbx::TIME_MODE_1000: return 1000;
+		case AssetImportFbx::TIME_MODE_CINEMA_ND: return 23.976f;
+		case AssetImportFbx::TIME_MODE_CUSTOM:
+			int32_t frame_rate;
+			p_scene->mMetaData->Get("FrameRate", frame_rate);
+			return frame_rate;
+	}
+	return 0;
+}
+
+Transform EditorSceneImporterAssimp::_get_global_assimp_node_transform(const aiNode *p_current_node) {
+	aiNode const *current_node = p_current_node;
+	Transform xform;
+	while (current_node != NULL) {
+		xform = _assimp_matrix_transform(current_node->mTransformation) * xform;
+		current_node = current_node->mParent;
+	}
+	return xform;
+}
+
+Ref<Texture> EditorSceneImporterAssimp::_load_texture(ImportState &state, String p_path) {
+	Vector<String> split_path = p_path.get_basename().split("*");
+	if (split_path.size() == 2) {
+		size_t texture_idx = split_path[1].to_int();
+		ERR_FAIL_COND_V(texture_idx >= state.assimp_scene->mNumTextures, Ref<Texture>());
+		aiTexture *tex = state.assimp_scene->mTextures[texture_idx];
+		String filename = _assimp_raw_string_to_string(tex->mFilename);
+		filename = filename.get_file();
+		print_verbose("Open Asset Import: Loading embedded texture " + filename);
+		if (tex->mHeight == 0) {
+			if (tex->CheckFormat("png")) {
+				Ref<Image> img = Image::_png_mem_loader_func((uint8_t *)tex->pcData, tex->mWidth);
+				ERR_FAIL_COND_V(img.is_null(), Ref<Texture>());
+
+				Ref<ImageTexture> t;
+				t.instance();
+				t->create_from_image(img);
+				t->set_storage(ImageTexture::STORAGE_COMPRESS_LOSSY);
+				return t;
+			} else if (tex->CheckFormat("jpg")) {
+				Ref<Image> img = Image::_jpg_mem_loader_func((uint8_t *)tex->pcData, tex->mWidth);
+				ERR_FAIL_COND_V(img.is_null(), Ref<Texture>());
+				Ref<ImageTexture> t;
+				t.instance();
+				t->create_from_image(img);
+				t->set_storage(ImageTexture::STORAGE_COMPRESS_LOSSY);
+				return t;
+			} else if (tex->CheckFormat("dds")) {
+				ERR_EXPLAIN("Open Asset Import: Embedded dds not implemented");
+				ERR_FAIL_COND_V(true, Ref<Texture>());
+				//Ref<Image> img = Image::_dds_mem_loader_func((uint8_t *)tex->pcData, tex->mWidth);
+				//ERR_FAIL_COND_V(img.is_null(), Ref<Texture>());
+				//Ref<ImageTexture> t;
+				//t.instance();
+				//t->create_from_image(img);
+				//t->set_storage(ImageTexture::STORAGE_COMPRESS_LOSSY);
+				//return t;
+			}
+		} else {
+			Ref<Image> img;
+			img.instance();
+			PoolByteArray arr;
+			uint32_t size = tex->mWidth * tex->mHeight;
+			arr.resize(size);
+			memcpy(arr.write().ptr(), tex->pcData, size);
+			ERR_FAIL_COND_V(arr.size() % 4 != 0, Ref<Texture>());
+			//ARGB8888 to RGBA8888
+			for (int32_t i = 0; i < arr.size() / 4; i++) {
+				arr.write().ptr()[(4 * i) + 3] = arr[(4 * i) + 0];
+				arr.write().ptr()[(4 * i) + 0] = arr[(4 * i) + 1];
+				arr.write().ptr()[(4 * i) + 1] = arr[(4 * i) + 2];
+				arr.write().ptr()[(4 * i) + 2] = arr[(4 * i) + 3];
+			}
+			img->create(tex->mWidth, tex->mHeight, true, Image::FORMAT_RGBA8, arr);
+			ERR_FAIL_COND_V(img.is_null(), Ref<Texture>());
+
+			Ref<ImageTexture> t;
+			t.instance();
+			t->create_from_image(img);
+			t->set_storage(ImageTexture::STORAGE_COMPRESS_LOSSY);
+			return t;
+		}
+		return Ref<Texture>();
+	}
+	Ref<Texture> p_texture = ResourceLoader::load(p_path, "Texture");
+	return p_texture;
+}
+
+Ref<Material> EditorSceneImporterAssimp::_generate_material_from_index(ImportState &state, int p_index, bool p_double_sided) {
+
+	ERR_FAIL_INDEX_V(p_index, (int)state.assimp_scene->mNumMaterials, Ref<Material>());
+
+	aiMaterial *ai_material = state.assimp_scene->mMaterials[p_index];
+	Ref<SpatialMaterial> mat;
+	mat.instance();
+
+	int32_t mat_two_sided = 0;
+	if (AI_SUCCESS == ai_material->Get(AI_MATKEY_TWOSIDED, mat_two_sided)) {
+		if (mat_two_sided > 0) {
+			mat->set_cull_mode(SpatialMaterial::CULL_DISABLED);
+		}
+	}
+
+	//const String mesh_name = _assimp_get_string(ai_mesh->mName);
+	aiString mat_name;
+	if (AI_SUCCESS == ai_material->Get(AI_MATKEY_NAME, mat_name)) {
+		mat->set_name(_assimp_get_string(mat_name));
+	}
+
+	aiTextureType tex_normal = aiTextureType_NORMALS;
+	{
+		aiString ai_filename = aiString();
+		String filename = "";
+		aiTextureMapMode map_mode[2];
+
+		if (AI_SUCCESS == ai_material->GetTexture(tex_normal, 0, &ai_filename, NULL, NULL, NULL, NULL, map_mode)) {
+			filename = _assimp_raw_string_to_string(ai_filename);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+
+				if (texture != NULL) {
+					if (map_mode != NULL) {
+						_set_texture_mapping_mode(map_mode, texture);
+					}
+					mat->set_feature(SpatialMaterial::Feature::FEATURE_NORMAL_MAPPING, true);
+					mat->set_texture(SpatialMaterial::TEXTURE_NORMAL, texture);
+				}
+			}
+		}
+	}
+
+	{
+		aiString ai_filename = aiString();
+		String filename = "";
+
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_NORMAL_TEXTURE, ai_filename)) {
+			filename = _assimp_raw_string_to_string(ai_filename);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					mat->set_feature(SpatialMaterial::Feature::FEATURE_NORMAL_MAPPING, true);
+					mat->set_texture(SpatialMaterial::TEXTURE_NORMAL, texture);
+				}
+			}
+		}
+	}
+
+	aiTextureType tex_emissive = aiTextureType_EMISSIVE;
+
+	if (ai_material->GetTextureCount(tex_emissive) > 0) {
+
+		aiString ai_filename = aiString();
+		String filename = "";
+		aiTextureMapMode map_mode[2];
+
+		if (AI_SUCCESS == ai_material->GetTexture(tex_emissive, 0, &ai_filename, NULL, NULL, NULL, NULL, map_mode)) {
+			filename = _assimp_raw_string_to_string(ai_filename);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					_set_texture_mapping_mode(map_mode, texture);
+					mat->set_feature(SpatialMaterial::FEATURE_EMISSION, true);
+					mat->set_texture(SpatialMaterial::TEXTURE_EMISSION, texture);
+				}
+			}
+		}
+	}
+
+	aiTextureType tex_albedo = aiTextureType_DIFFUSE;
+	if (ai_material->GetTextureCount(tex_albedo) > 0) {
+
+		aiString ai_filename = aiString();
+		String filename = "";
+		aiTextureMapMode map_mode[2];
+		if (AI_SUCCESS == ai_material->GetTexture(tex_albedo, 0, &ai_filename, NULL, NULL, NULL, NULL, map_mode)) {
+			filename = _assimp_raw_string_to_string(ai_filename);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					if (texture->get_data()->detect_alpha() != Image::ALPHA_NONE) {
+						_set_texture_mapping_mode(map_mode, texture);
+						mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+						mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+					}
+					mat->set_texture(SpatialMaterial::TEXTURE_ALBEDO, texture);
+				}
+			}
+		}
+	} else {
+		aiColor4D clr_diffuse;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_COLOR_DIFFUSE, clr_diffuse)) {
+			if (Math::is_equal_approx(clr_diffuse.a, 1.0f) == false) {
+				mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+				mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+			}
+			mat->set_albedo(Color(clr_diffuse.r, clr_diffuse.g, clr_diffuse.b, clr_diffuse.a));
+		}
+	}
+
+	aiString tex_gltf_base_color_path = aiString();
+	aiTextureMapMode map_mode[2];
+	if (AI_SUCCESS == ai_material->GetTexture(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE, &tex_gltf_base_color_path, NULL, NULL, NULL, NULL, map_mode)) {
+		String filename = _assimp_raw_string_to_string(tex_gltf_base_color_path);
+		String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+		bool found = false;
+		_find_texture_path(state.path, path, found);
+		if (found) {
+			Ref<Texture> texture = _load_texture(state, path);
+			_find_texture_path(state.path, path, found);
+			if (texture != NULL) {
+				if (texture->get_data()->detect_alpha() == Image::ALPHA_BLEND) {
+					_set_texture_mapping_mode(map_mode, texture);
+					mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+					mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+				}
+				mat->set_texture(SpatialMaterial::TEXTURE_ALBEDO, texture);
+			}
+		}
+	} else {
+		aiColor4D pbr_base_color;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR, pbr_base_color)) {
+			if (Math::is_equal_approx(pbr_base_color.a, 1.0f) == false) {
+				mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+				mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+			}
+			mat->set_albedo(Color(pbr_base_color.r, pbr_base_color.g, pbr_base_color.b, pbr_base_color.a));
+		}
+	}
+	{
+		aiString tex_fbx_pbs_base_color_path = aiString();
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_BASE_COLOR_TEXTURE, tex_fbx_pbs_base_color_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_base_color_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				_find_texture_path(state.path, path, found);
+				if (texture != NULL) {
+					if (texture->get_data()->detect_alpha() == Image::ALPHA_BLEND) {
+						mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+						mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+					}
+					mat->set_texture(SpatialMaterial::TEXTURE_ALBEDO, texture);
+				}
+			}
+		} else {
+			aiColor4D pbr_base_color;
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_BASE_COLOR_FACTOR, pbr_base_color)) {
+				mat->set_albedo(Color(pbr_base_color.r, pbr_base_color.g, pbr_base_color.b, pbr_base_color.a));
+			}
+		}
+
+		aiUVTransform pbr_base_color_uv_xform;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_BASE_COLOR_UV_XFORM, pbr_base_color_uv_xform)) {
+			mat->set_uv1_offset(Vector3(pbr_base_color_uv_xform.mTranslation.x, pbr_base_color_uv_xform.mTranslation.y, 0.0f));
+			mat->set_uv1_scale(Vector3(pbr_base_color_uv_xform.mScaling.x, pbr_base_color_uv_xform.mScaling.y, 1.0f));
+		}
+	}
+
+	{
+		aiString tex_fbx_pbs_normal_path = aiString();
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_NORMAL_TEXTURE, tex_fbx_pbs_normal_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_normal_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				_find_texture_path(state.path, path, found);
+				if (texture != NULL) {
+					mat->set_feature(SpatialMaterial::Feature::FEATURE_NORMAL_MAPPING, true);
+					mat->set_texture(SpatialMaterial::TEXTURE_NORMAL, texture);
+				}
+			}
+		}
+	}
+
+	if (p_double_sided) {
+		mat->set_cull_mode(SpatialMaterial::CULL_DISABLED);
+	}
+
+	{
+		aiString tex_fbx_stingray_normal_path = aiString();
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_NORMAL_TEXTURE, tex_fbx_stingray_normal_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_stingray_normal_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				_find_texture_path(state.path, path, found);
+				if (texture != NULL) {
+					mat->set_feature(SpatialMaterial::Feature::FEATURE_NORMAL_MAPPING, true);
+					mat->set_texture(SpatialMaterial::TEXTURE_NORMAL, texture);
+				}
+			}
+		}
+	}
+
+	{
+		aiString tex_fbx_pbs_base_color_path = aiString();
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_COLOR_TEXTURE, tex_fbx_pbs_base_color_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_base_color_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				_find_texture_path(state.path, path, found);
+				if (texture != NULL) {
+					if (texture->get_data()->detect_alpha() == Image::ALPHA_BLEND) {
+						mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+						mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+					}
+					mat->set_texture(SpatialMaterial::TEXTURE_ALBEDO, texture);
+				}
+			}
+		} else {
+			aiColor4D pbr_base_color;
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_BASE_COLOR_FACTOR, pbr_base_color)) {
+				mat->set_albedo(Color(pbr_base_color.r, pbr_base_color.g, pbr_base_color.b, pbr_base_color.a));
+			}
+		}
+
+		aiUVTransform pbr_base_color_uv_xform;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_COLOR_UV_XFORM, pbr_base_color_uv_xform)) {
+			mat->set_uv1_offset(Vector3(pbr_base_color_uv_xform.mTranslation.x, pbr_base_color_uv_xform.mTranslation.y, 0.0f));
+			mat->set_uv1_scale(Vector3(pbr_base_color_uv_xform.mScaling.x, pbr_base_color_uv_xform.mScaling.y, 1.0f));
+		}
+	}
+
+	{
+		aiString tex_fbx_pbs_emissive_path = aiString();
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_TEXTURE, tex_fbx_pbs_emissive_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_emissive_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				_find_texture_path(state.path, path, found);
+				if (texture != NULL) {
+					if (texture->get_data()->detect_alpha() == Image::ALPHA_BLEND) {
+						mat->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+						mat->set_depth_draw_mode(SpatialMaterial::DepthDrawMode::DEPTH_DRAW_ALPHA_OPAQUE_PREPASS);
+					}
+					mat->set_texture(SpatialMaterial::TEXTURE_ALBEDO, texture);
+				}
+			}
+		} else {
+			aiColor4D pbr_emmissive_color;
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_FACTOR, pbr_emmissive_color)) {
+				mat->set_emission(Color(pbr_emmissive_color.r, pbr_emmissive_color.g, pbr_emmissive_color.b, pbr_emmissive_color.a));
+			}
+		}
+
+		real_t pbr_emission_intensity;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_INTENSITY_FACTOR, pbr_emission_intensity)) {
+			mat->set_emission_energy(pbr_emission_intensity);
+		}
+	}
+
+	aiString tex_gltf_pbr_metallicroughness_path;
+	if (AI_SUCCESS == ai_material->GetTexture(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE, &tex_gltf_pbr_metallicroughness_path)) {
+		String filename = _assimp_raw_string_to_string(tex_gltf_pbr_metallicroughness_path);
+		String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+		bool found = false;
+		_find_texture_path(state.path, path, found);
+		if (found) {
+			Ref<Texture> texture = _load_texture(state, path);
+			if (texture != NULL) {
+				mat->set_texture(SpatialMaterial::TEXTURE_METALLIC, texture);
+				mat->set_metallic_texture_channel(SpatialMaterial::TEXTURE_CHANNEL_BLUE);
+				mat->set_texture(SpatialMaterial::TEXTURE_ROUGHNESS, texture);
+				mat->set_roughness_texture_channel(SpatialMaterial::TEXTURE_CHANNEL_GREEN);
+			}
+		}
+	} else {
+		float pbr_roughness = 0.0f;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR, pbr_roughness)) {
+			mat->set_roughness(pbr_roughness);
+		}
+		float pbr_metallic = 0.0f;
+
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR, pbr_metallic)) {
+			mat->set_metallic(pbr_metallic);
+		}
+	}
+	{
+		aiString tex_fbx_pbs_metallic_path;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_METALLIC_TEXTURE, tex_fbx_pbs_metallic_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_metallic_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					mat->set_texture(SpatialMaterial::TEXTURE_METALLIC, texture);
+					mat->set_metallic_texture_channel(SpatialMaterial::TEXTURE_CHANNEL_GRAYSCALE);
+				}
+			}
+		} else {
+			float pbr_metallic = 0.0f;
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_METALLIC_FACTOR, pbr_metallic)) {
+				mat->set_metallic(pbr_metallic);
+			}
+		}
+
+		aiString tex_fbx_pbs_rough_path;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_ROUGHNESS_TEXTURE, tex_fbx_pbs_rough_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_rough_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					mat->set_texture(SpatialMaterial::TEXTURE_ROUGHNESS, texture);
+					mat->set_roughness_texture_channel(SpatialMaterial::TEXTURE_CHANNEL_GRAYSCALE);
+				}
+			}
+		} else {
+			float pbr_roughness = 0.04f;
+
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_STINGRAY_ROUGHNESS_FACTOR, pbr_roughness)) {
+				mat->set_roughness(pbr_roughness);
+			}
+		}
+	}
+
+	{
+		aiString tex_fbx_pbs_metallic_path;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_METALNESS_TEXTURE, tex_fbx_pbs_metallic_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_metallic_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					mat->set_texture(SpatialMaterial::TEXTURE_METALLIC, texture);
+					mat->set_metallic_texture_channel(SpatialMaterial::TEXTURE_CHANNEL_GRAYSCALE);
+				}
+			}
+		} else {
+			float pbr_metallic = 0.0f;
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_METALNESS_FACTOR, pbr_metallic)) {
+				mat->set_metallic(pbr_metallic);
+			}
+		}
+
+		aiString tex_fbx_pbs_rough_path;
+		if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_DIFFUSE_ROUGHNESS_TEXTURE, tex_fbx_pbs_rough_path)) {
+			String filename = _assimp_raw_string_to_string(tex_fbx_pbs_rough_path);
+			String path = state.path.get_base_dir() + "/" + filename.replace("\\", "/");
+			bool found = false;
+			_find_texture_path(state.path, path, found);
+			if (found) {
+				Ref<Texture> texture = _load_texture(state, path);
+				if (texture != NULL) {
+					mat->set_texture(SpatialMaterial::TEXTURE_ROUGHNESS, texture);
+					mat->set_roughness_texture_channel(SpatialMaterial::TEXTURE_CHANNEL_GRAYSCALE);
+				}
+			}
+		} else {
+			float pbr_roughness = 0.04f;
+
+			if (AI_SUCCESS == ai_material->Get(AI_MATKEY_FBX_MAYA_DIFFUSE_ROUGHNESS_FACTOR, pbr_roughness)) {
+				mat->set_roughness(pbr_roughness);
+			}
+		}
+	}
+
+	return mat;
+}
+
+Ref<Mesh> EditorSceneImporterAssimp::_generate_mesh_from_surface_indices(ImportState &state, const Vector<int> &p_surface_indices, Skeleton *p_skeleton, bool p_double_sided_material) {
+
+	Ref<ArrayMesh> mesh;
+	mesh.instance();
+	bool has_uvs = false;
+
+	for (int i = 0; i < p_surface_indices.size(); i++) {
+		const unsigned int mesh_idx = p_surface_indices[i];
+		const aiMesh *ai_mesh = state.assimp_scene->mMeshes[mesh_idx];
+
+		Map<uint32_t, Vector<BoneInfo> > vertex_weights;
+
+		if (p_skeleton) {
+			for (size_t b = 0; b < ai_mesh->mNumBones; b++) {
+				aiBone *bone = ai_mesh->mBones[b];
+				String bone_name = _assimp_get_string(bone->mName);
+				int bone_index = p_skeleton->find_bone(bone_name);
+				ERR_CONTINUE(bone_index == -1); //bone refers to an unexisting index, wtf.
+
+				for (size_t w = 0; w < bone->mNumWeights; w++) {
+
+					aiVertexWeight ai_weights = bone->mWeights[w];
+
+					BoneInfo bi;
+
+					uint32_t vertex_index = ai_weights.mVertexId;
+					bi.bone = bone_index;
+					bi.weight = ai_weights.mWeight;
+					;
+
+					if (!vertex_weights.has(vertex_index)) {
+						vertex_weights[vertex_index] = Vector<BoneInfo>();
+					}
+
+					vertex_weights[vertex_index].push_back(bi);
+				}
+			}
+		}
+
+		Ref<SurfaceTool> st;
+		st.instance();
+		st->begin(Mesh::PRIMITIVE_TRIANGLES);
+
+		for (size_t j = 0; j < ai_mesh->mNumVertices; j++) {
+			if (ai_mesh->HasTextureCoords(0)) {
+				has_uvs = true;
+				st->add_uv(Vector2(ai_mesh->mTextureCoords[0][j].x, 1.0f - ai_mesh->mTextureCoords[0][j].y));
+			}
+			if (ai_mesh->HasTextureCoords(1)) {
+				has_uvs = true;
+				st->add_uv2(Vector2(ai_mesh->mTextureCoords[1][j].x, 1.0f - ai_mesh->mTextureCoords[1][j].y));
+			}
+			if (ai_mesh->HasVertexColors(0)) {
+				Color color = Color(ai_mesh->mColors[0]->r, ai_mesh->mColors[0]->g, ai_mesh->mColors[0]->b, ai_mesh->mColors[0]->a);
+				st->add_color(color);
+			}
+			if (ai_mesh->mNormals != NULL) {
+				const aiVector3D normals = ai_mesh->mNormals[j];
+				const Vector3 godot_normal = Vector3(normals.x, normals.y, normals.z);
+				st->add_normal(godot_normal);
+				if (ai_mesh->HasTangentsAndBitangents()) {
+					const aiVector3D tangents = ai_mesh->mTangents[j];
+					const Vector3 godot_tangent = Vector3(tangents.x, tangents.y, tangents.z);
+					const aiVector3D bitangent = ai_mesh->mBitangents[j];
+					const Vector3 godot_bitangent = Vector3(bitangent.x, bitangent.y, bitangent.z);
+					float d = godot_normal.cross(godot_tangent).dot(godot_bitangent) > 0.0f ? 1.0f : -1.0f;
+					st->add_tangent(Plane(tangents.x, tangents.y, tangents.z, d));
+				}
+			}
+
+			if (vertex_weights.has(j)) {
+
+				Vector<BoneInfo> bone_info = vertex_weights[j];
+				Vector<int> bones;
+				bones.resize(bone_info.size());
+				Vector<float> weights;
+				weights.resize(bone_info.size());
+				for (int k = 0; k < bone_info.size(); k++) {
+					bones.write[k] = bone_info[k].bone;
+					weights.write[k] = bone_info[k].weight;
+				}
+
+				st->add_bones(bones);
+				st->add_weights(weights);
+			}
+
+			const aiVector3D pos = ai_mesh->mVertices[j];
+			Vector3 godot_pos = Vector3(pos.x, pos.y, pos.z);
+			st->add_vertex(godot_pos);
+		}
+
+		for (size_t j = 0; j < ai_mesh->mNumFaces; j++) {
+			const aiFace face = ai_mesh->mFaces[j];
+			ERR_CONTINUE(face.mNumIndices != 3);
+			Vector<size_t> order;
+			order.push_back(2);
+			order.push_back(1);
+			order.push_back(0);
+			for (int32_t k = 0; k < order.size(); k++) {
+				st->add_index(face.mIndices[order[k]]);
+			}
+		}
+		if (ai_mesh->HasTangentsAndBitangents() == false && has_uvs) {
+			st->generate_tangents();
+		}
+
+		Ref<Material> material;
+
+		if (!state.material_cache.has(ai_mesh->mMaterialIndex)) {
+			material = _generate_material_from_index(state, ai_mesh->mMaterialIndex, p_double_sided_material);
+		}
+
+		Array array_mesh = st->commit_to_arrays();
+		Array morphs;
+		morphs.resize(ai_mesh->mNumAnimMeshes);
+		Mesh::PrimitiveType primitive = Mesh::PRIMITIVE_TRIANGLES;
+		Map<uint32_t, String> morph_mesh_idx_names;
+		for (size_t j = 0; j < ai_mesh->mNumAnimMeshes; j++) {
+
+			if (i == 0) {
+				//only do this the first time
+				String ai_anim_mesh_name = _assimp_get_string(ai_mesh->mAnimMeshes[j]->mName);
+				mesh->set_blend_shape_mode(Mesh::BLEND_SHAPE_MODE_NORMALIZED);
+				if (ai_anim_mesh_name.empty()) {
+					ai_anim_mesh_name = String("morph_") + itos(j);
+				}
+				mesh->add_blend_shape(ai_anim_mesh_name);
+			}
+
+			Array array_copy;
+			array_copy.resize(VisualServer::ARRAY_MAX);
+
+			for (int l = 0; l < VisualServer::ARRAY_MAX; l++) {
+				array_copy[l] = array_mesh[l].duplicate(true);
+			}
+
+			const size_t num_vertices = ai_mesh->mAnimMeshes[j]->mNumVertices;
+			array_copy[Mesh::ARRAY_INDEX] = Variant();
+			if (ai_mesh->mAnimMeshes[j]->HasPositions()) {
+				PoolVector3Array vertices;
+				vertices.resize(num_vertices);
+				for (size_t l = 0; l < num_vertices; l++) {
+					const aiVector3D ai_pos = ai_mesh->mAnimMeshes[j]->mVertices[l];
+					Vector3 position = Vector3(ai_pos.x, ai_pos.y, ai_pos.z);
+					vertices.write()[l] = position;
+				}
+				PoolVector3Array new_vertices = array_copy[VisualServer::ARRAY_VERTEX].duplicate(true);
+
+				for (int32_t l = 0; l < vertices.size(); l++) {
+					PoolVector3Array::Write w = new_vertices.write();
+					w[l] = vertices[l];
+				}
+				ERR_CONTINUE(vertices.size() != new_vertices.size());
+				array_copy[VisualServer::ARRAY_VERTEX] = new_vertices;
+			}
+
+			int32_t color_set = 0;
+			if (ai_mesh->mAnimMeshes[j]->HasVertexColors(color_set)) {
+				PoolColorArray colors;
+				colors.resize(num_vertices);
+				for (size_t l = 0; l < num_vertices; l++) {
+					const aiColor4D ai_color = ai_mesh->mAnimMeshes[j]->mColors[color_set][l];
+					Color color = Color(ai_color.r, ai_color.g, ai_color.b, ai_color.a);
+					colors.write()[l] = color;
+				}
+				PoolColorArray new_colors = array_copy[VisualServer::ARRAY_COLOR].duplicate(true);
+
+				for (int32_t l = 0; l < colors.size(); l++) {
+					PoolColorArray::Write w = new_colors.write();
+					w[l] = colors[l];
+				}
+				array_copy[VisualServer::ARRAY_COLOR] = new_colors;
+			}
+
+			if (ai_mesh->mAnimMeshes[j]->HasNormals()) {
+				PoolVector3Array normals;
+				normals.resize(num_vertices);
+				for (size_t l = 0; l < num_vertices; l++) {
+					const aiVector3D ai_normal = ai_mesh->mAnimMeshes[i]->mNormals[l];
+					Vector3 normal = Vector3(ai_normal.x, ai_normal.y, ai_normal.z);
+					normals.write()[l] = normal;
+				}
+				PoolVector3Array new_normals = array_copy[VisualServer::ARRAY_NORMAL].duplicate(true);
+
+				for (int l = 0; l < normals.size(); l++) {
+					PoolVector3Array::Write w = new_normals.write();
+					w[l] = normals[l];
+				}
+				array_copy[VisualServer::ARRAY_NORMAL] = new_normals;
+			}
+
+			if (ai_mesh->mAnimMeshes[j]->HasTangentsAndBitangents()) {
+				PoolColorArray tangents;
+				tangents.resize(num_vertices);
+				PoolColorArray::Write w = tangents.write();
+				for (size_t l = 0; l < num_vertices; l++) {
+					_calc_tangent_from_mesh(ai_mesh, j, l, l, w);
+				}
+				PoolRealArray new_tangents = array_copy[VisualServer::ARRAY_TANGENT].duplicate(true);
+				ERR_CONTINUE(new_tangents.size() != tangents.size() * 4);
+				for (int32_t l = 0; l < tangents.size(); l++) {
+					new_tangents.write()[l + 0] = tangents[l].r;
+					new_tangents.write()[l + 1] = tangents[l].g;
+					new_tangents.write()[l + 2] = tangents[l].b;
+					new_tangents.write()[l + 3] = tangents[l].a;
+				}
+
+				array_copy[VisualServer::ARRAY_TANGENT] = new_tangents;
+			}
+
+			morphs[j] = array_copy;
+		}
+
+		mesh->add_surface_from_arrays(primitive, array_mesh, morphs);
+		mesh->surface_set_material(i, material);
+		mesh->surface_set_name(i, _assimp_get_string(ai_mesh->mName));
+	}
+
+	return mesh;
+}
+
+void EditorSceneImporterAssimp::_generate_node(ImportState &state, const aiNode *p_assimp_node, Node *p_parent) {
+
+	Spatial *new_node = NULL;
+	String node_name = _assimp_get_string(p_assimp_node->mName);
+	Transform node_transform = _assimp_matrix_transform(p_assimp_node->mTransformation);
+
+	if (p_assimp_node->mNumMeshes > 0) {
+		/* MESH NODE */
+		Ref<Mesh> mesh;
+		Skeleton *skeleton = NULL;
+		{
+
+			//see if we have mesh cache for this.
+			Vector<int> surface_indices;
+			for (uint32_t i = 0; i < p_assimp_node->mNumMeshes; i++) {
+				int mesh_index = p_assimp_node->mMeshes[i];
+				surface_indices.push_back(mesh_index);
+
+				//take the chane and attempt to find the skeleton from the bones
+				if (!skeleton) {
+					aiMesh *ai_mesh = state.assimp_scene->mMeshes[p_assimp_node->mMeshes[i]];
+					for (uint32_t j = 0; j < ai_mesh->mNumBones; j++) {
+						aiBone *bone = ai_mesh->mBones[j];
+						String bone_name = _assimp_get_string(bone->mName);
+						if (state.bone_owners.has(bone_name)) {
+							skeleton = state.skeletons[state.bone_owners[bone_name]];
+							break;
+						}
+					}
+				}
+			}
+			surface_indices.sort();
+			String mesh_key;
+			for (int i = 0; i < surface_indices.size(); i++) {
+				if (i > 0) {
+					mesh_key += ":";
+				}
+				mesh_key += itos(surface_indices[i]);
+			}
+
+			if (!state.mesh_cache.has(mesh_key)) {
+				//adding cache
+				aiString cull_mode; //cull is on mesh, which is kind of stupid tbh
+				bool double_sided_material = false;
+				if (p_assimp_node->mMetaData) {
+					p_assimp_node->mMetaData->Get("Culling", cull_mode);
+				}
+				if (cull_mode.length != 0 && cull_mode == aiString("CullingOff")) {
+					double_sided_material = true;
+				}
+
+				mesh = _generate_mesh_from_surface_indices(state, surface_indices, skeleton, double_sided_material);
+				state.mesh_cache[mesh_key] = mesh;
+			}
+
+			mesh = state.mesh_cache[mesh_key];
+		}
+
+		MeshInstance *mesh_node = memnew(MeshInstance);
+		if (skeleton) {
+			state.mesh_skeletons[mesh_node] = skeleton;
+		}
+		mesh_node->set_mesh(mesh);
+		new_node = mesh_node;
+
+	} else if (state.light_cache.has(node_name)) {
+
+		Light *light = NULL;
+		aiLight *ai_light = state.assimp_scene->mLights[state.light_cache[node_name]];
+		ERR_FAIL_COND(!ai_light);
+
+		if (ai_light->mType == aiLightSource_DIRECTIONAL) {
+			light = memnew(DirectionalLight);
+			Vector3 dir = Vector3(ai_light->mDirection.y, ai_light->mDirection.x, ai_light->mDirection.z);
+			dir.normalize();
+			Vector3 pos = Vector3(ai_light->mPosition.x, ai_light->mPosition.y, ai_light->mPosition.z);
+			Vector3 up = Vector3(ai_light->mUp.x, ai_light->mUp.y, ai_light->mUp.z);
+			up.normalize();
+
+			Transform light_transform;
+			light_transform.set_look_at(pos, pos + dir, up);
+
+			node_transform *= light_transform;
+
+		} else if (ai_light->mType == aiLightSource_POINT) {
+			light = memnew(OmniLight);
+			Vector3 pos = Vector3(ai_light->mPosition.x, ai_light->mPosition.y, ai_light->mPosition.z);
+			Transform xform;
+			xform.origin = pos;
+
+			node_transform *= xform;
+
+			light->set_transform(xform);
+
+			//light->set_param(Light::PARAM_ATTENUATION, 1);
+		} else if (ai_light->mType == aiLightSource_SPOT) {
+			light = memnew(SpotLight);
+
+			Vector3 dir = Vector3(ai_light->mDirection.y, ai_light->mDirection.x, ai_light->mDirection.z);
+			dir.normalize();
+			Vector3 pos = Vector3(ai_light->mPosition.x, ai_light->mPosition.y, ai_light->mPosition.z);
+			Vector3 up = Vector3(ai_light->mUp.x, ai_light->mUp.y, ai_light->mUp.z);
+			up.normalize();
+
+			Transform light_transform;
+			light_transform.set_look_at(pos, pos + dir, up);
+			node_transform *= light_transform;
+
+			//light->set_param(Light::PARAM_ATTENUATION, 0.0f);
+		}
+		ERR_FAIL_COND(light == NULL);
+		light->set_color(Color(ai_light->mColorDiffuse.r, ai_light->mColorDiffuse.g, ai_light->mColorDiffuse.b));
+		new_node = light;
+	} else if (state.camera_cache.has(node_name)) {
+
+		aiCamera *ai_camera = state.assimp_scene->mCameras[state.camera_cache[node_name]];
+		ERR_FAIL_COND(!ai_camera);
+
+		Camera *camera = memnew(Camera);
+
+		float near = ai_camera->mClipPlaneNear;
+		if (Math::is_equal_approx(near, 0.0f)) {
+			near = 0.1f;
+		}
+		camera->set_perspective(Math::rad2deg(ai_camera->mHorizontalFOV) * 2.0f, near, ai_camera->mClipPlaneFar);
+
+		Vector3 pos = Vector3(ai_camera->mPosition.x, ai_camera->mPosition.y, ai_camera->mPosition.z);
+		Vector3 look_at = Vector3(ai_camera->mLookAt.y, ai_camera->mLookAt.x, ai_camera->mLookAt.z).normalized();
+		Vector3 up = Vector3(ai_camera->mUp.x, ai_camera->mUp.y, ai_camera->mUp.z);
+
+		Transform xform;
+		xform.set_look_at(pos, look_at, up);
+
+		new_node = camera;
+	} else if (state.bone_owners.has(node_name)) {
+
+		//have to actually put the skeleton somewhere, you know.
+		Skeleton *skeleton = state.skeletons[state.bone_owners[node_name]];
+		if (skeleton->get_parent()) {
+			//a bone for a skeleton already added..
+			//could go downwards here to add meshes children of skeleton bones
+			//but let's not support it for now.
+			return;
+		}
+		//restore rest poses to local, now that we know where the skeleton finally is
+		Transform skeleton_transform;
+		if (p_assimp_node->mParent) {
+			skeleton_transform = _get_global_assimp_node_transform(p_assimp_node->mParent);
+		}
+		for (int i = 0; i < skeleton->get_bone_count(); i++) {
+			Transform rest = skeleton_transform.affine_inverse() * skeleton->get_bone_rest(i);
+			skeleton->set_bone_rest(i, rest.affine_inverse());
+		}
+
+		skeleton->localize_rests();
+		node_name = "Skeleton"; //don't use the bone root name
+		node_transform = Transform(); //dont transform
+
+		new_node = skeleton;
+	} else {
+		//generic node
+		new_node = memnew(Spatial);
+	}
+
+	{
+
+		new_node->set_name(node_name);
+		new_node->set_transform(node_transform);
+		p_parent->add_child(new_node);
+		new_node->set_owner(state.root);
+	}
+
+	state.node_map[node_name] = new_node;
+
+	for (size_t i = 0; i < p_assimp_node->mNumChildren; i++) {
+		_generate_node(state, p_assimp_node->mChildren[i], new_node);
+	}
+}
+
+void EditorSceneImporterAssimp::_calc_tangent_from_mesh(const aiMesh *ai_mesh, int i, int tri_index, int index, PoolColorArray::Write &w) {
+	const aiVector3D normals = ai_mesh->mAnimMeshes[i]->mNormals[tri_index];
+	const Vector3 godot_normal = Vector3(normals.x, normals.y, normals.z);
+	const aiVector3D tangent = ai_mesh->mAnimMeshes[i]->mTangents[tri_index];
+	const Vector3 godot_tangent = Vector3(tangent.x, tangent.y, tangent.z);
+	const aiVector3D bitangent = ai_mesh->mAnimMeshes[i]->mBitangents[tri_index];
+	const Vector3 godot_bitangent = Vector3(bitangent.x, bitangent.y, bitangent.z);
+	float d = godot_normal.cross(godot_tangent).dot(godot_bitangent) > 0.0f ? 1.0f : -1.0f;
+	Color plane_tangent = Color(tangent.x, tangent.y, tangent.z, d);
+	w[index] = plane_tangent;
+}
+
+void EditorSceneImporterAssimp::_set_texture_mapping_mode(aiTextureMapMode *map_mode, Ref<Texture> texture) {
+	ERR_FAIL_COND(map_mode == NULL);
+	aiTextureMapMode tex_mode = aiTextureMapMode::aiTextureMapMode_Wrap;
+	//for (size_t i = 0; i < 3; i++) {
+	tex_mode = map_mode[0];
+	//}
+	int32_t flags = Texture::FLAGS_DEFAULT;
+	if (tex_mode == aiTextureMapMode_Wrap) {
+		//Default
+	} else if (tex_mode == aiTextureMapMode_Clamp) {
+		flags = flags & ~Texture::FLAG_REPEAT;
+	} else if (tex_mode == aiTextureMapMode_Mirror) {
+		flags = flags | Texture::FLAG_MIRRORED_REPEAT;
+	}
+	texture->set_flags(flags);
+}
+
+void EditorSceneImporterAssimp::_find_texture_path(const String &r_p_path, String &r_path, bool &r_found) {
+
+	_Directory dir;
+
+	List<String> exts;
+	ImageLoader::get_recognized_extensions(&exts);
+
+	Vector<String> split_path = r_path.get_basename().split("*");
+	if (split_path.size() == 2) {
+		r_found = true;
+		return;
+	}
+
+	if (dir.file_exists(r_p_path.get_base_dir() + r_path.get_file())) {
+		r_path = r_p_path.get_base_dir() + r_path.get_file();
+		r_found = true;
+		return;
+	}
+
+	for (int32_t i = 0; i < exts.size(); i++) {
+		if (r_found) {
+			return;
+		}
+		if (r_found == false) {
+			_find_texture_path(r_p_path, dir, r_path, r_found, "." + exts[i]);
+		}
+	}
+}
+
+void EditorSceneImporterAssimp::_find_texture_path(const String &p_path, _Directory &dir, String &path, bool &found, String extension) {
+	String name = path.get_basename() + extension;
+	if (dir.file_exists(name)) {
+		found = true;
+		path = name;
+		return;
+	}
+	String name_ignore_sub_directory = p_path.get_base_dir() + "/" + path.get_file().get_basename() + extension;
+	if (dir.file_exists(name_ignore_sub_directory)) {
+		found = true;
+		path = name_ignore_sub_directory;
+		return;
+	}
+
+	String name_find_texture_sub_directory = p_path.get_base_dir() + "/textures/" + path.get_file().get_basename() + extension;
+	if (dir.file_exists(name_find_texture_sub_directory)) {
+		found = true;
+		path = name_find_texture_sub_directory;
+		return;
+	}
+	String name_find_texture_upper_sub_directory = p_path.get_base_dir() + "/Textures/" + path.get_file().get_basename() + extension;
+	if (dir.file_exists(name_find_texture_upper_sub_directory)) {
+		found = true;
+		path = name_find_texture_upper_sub_directory;
+		return;
+	}
+	String name_find_texture_outside_sub_directory = p_path.get_base_dir() + "/../textures/" + path.get_file().get_basename() + extension;
+	if (dir.file_exists(name_find_texture_outside_sub_directory)) {
+		found = true;
+		path = name_find_texture_outside_sub_directory;
+		return;
+	}
+
+	String name_find_upper_texture_outside_sub_directory = p_path.get_base_dir() + "/../Textures/" + path.get_file().get_basename() + extension;
+	if (dir.file_exists(name_find_upper_texture_outside_sub_directory)) {
+		found = true;
+		path = name_find_upper_texture_outside_sub_directory;
+		return;
+	}
+}
+
+String EditorSceneImporterAssimp::_assimp_get_string(const aiString p_string) const {
+	//convert an assimp String to a Godot String
+	String name;
+	name.parse_utf8(p_string.C_Str() /*,p_string.length*/);
+	if (name.find(":") != -1) {
+		String replaced_name = name.split(":")[1];
+		print_verbose("Replacing " + name + " containing : with " + replaced_name);
+		name = replaced_name;
+	}
+
+	name = name.replace(".", ""); //can break things, specially bone names
+
+	return name;
+}
+
+String EditorSceneImporterAssimp::_assimp_anim_string_to_string(const aiString p_string) const {
+
+	String name;
+	name.parse_utf8(p_string.C_Str() /*,p_string.length*/);
+	if (name.find(":") != -1) {
+		String replaced_name = name.split(":")[1];
+		print_verbose("Replacing " + name + " containing : with " + replaced_name);
+		name = replaced_name;
+	}
+	return name;
+}
+
+String EditorSceneImporterAssimp::_assimp_raw_string_to_string(const aiString p_string) const {
+	String name;
+	name.parse_utf8(p_string.C_Str() /*,p_string.length*/);
+	return name;
+}
+
+Ref<Animation> EditorSceneImporterAssimp::import_animation(const String &p_path, uint32_t p_flags, int p_bake_fps) {
+	return Ref<Animation>();
+}
+
+const Transform EditorSceneImporterAssimp::_assimp_matrix_transform(const aiMatrix4x4 p_matrix) {
+	aiMatrix4x4 matrix = p_matrix;
+	Transform xform;
+	//xform.set(matrix.a1, matrix.b1, matrix.c1, matrix.a2, matrix.b2, matrix.c2, matrix.a3, matrix.b3, matrix.c3, matrix.a4, matrix.b4, matrix.c4);
+	xform.set(matrix.a1, matrix.a2, matrix.a3, matrix.b1, matrix.b2, matrix.b3, matrix.c1, matrix.c2, matrix.c3, matrix.a4, matrix.b4, matrix.c4);
+	return xform;
+}
diff --git a/modules/assimp/editor_scene_importer_assimp.h b/modules/assimp/editor_scene_importer_assimp.h
new file mode 100644
index 0000000000..598845236e
--- /dev/null
+++ b/modules/assimp/editor_scene_importer_assimp.h
@@ -0,0 +1,234 @@
+/*************************************************************************/
+/*  editor_scene_importer_assimp.h                                       */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef EDITOR_SCENE_IMPORTER_ASSIMP_H
+#define EDITOR_SCENE_IMPORTER_ASSIMP_H
+
+#ifdef TOOLS_ENABLED
+#include "core/bind/core_bind.h"
+#include "core/io/resource_importer.h"
+#include "core/vector.h"
+#include "editor/import/resource_importer_scene.h"
+#include "editor/project_settings_editor.h"
+#include "scene/3d/mesh_instance.h"
+#include "scene/3d/skeleton.h"
+#include "scene/3d/spatial.h"
+#include "scene/animation/animation_player.h"
+#include "scene/resources/animation.h"
+#include "scene/resources/surface_tool.h"
+
+#include "assimp/DefaultLogger.hpp"
+#include "assimp/LogStream.hpp"
+#include "assimp/Logger.hpp"
+#include "assimp/matrix4x4.h"
+#include "assimp/scene.h"
+#include "assimp/types.h"
+
+class AssimpStream : public Assimp::LogStream {
+public:
+	// Constructor
+	AssimpStream();
+
+	// Destructor
+	~AssimpStream();
+	// Write something using your own functionality
+	void write(const char *message);
+};
+
+#define AI_MATKEY_FBX_MAYA_BASE_COLOR_FACTOR "$raw.Maya|baseColor", 0, 0
+#define AI_MATKEY_FBX_MAYA_METALNESS_FACTOR "$raw.Maya|metalness", 0, 0
+#define AI_MATKEY_FBX_MAYA_DIFFUSE_ROUGHNESS_FACTOR "$raw.Maya|diffuseRoughness", 0, 0
+
+#define AI_MATKEY_FBX_MAYA_METALNESS_TEXTURE "$raw.Maya|metalness|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_METALNESS_UV_XFORM "$raw.Maya|metalness|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_DIFFUSE_ROUGHNESS_TEXTURE "$raw.Maya|diffuseRoughness|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_DIFFUSE_ROUGHNESS_UV_XFORM "$raw.Maya|diffuseRoughness|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_BASE_COLOR_TEXTURE "$raw.Maya|baseColor|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_BASE_COLOR_UV_XFORM "$raw.Maya|baseColor|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_NORMAL_TEXTURE "$raw.Maya|normalCamera|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_NORMAL_UV_XFORM "$raw.Maya|normalCamera|uvtrafo", aiTextureType_UNKNOWN, 0
+
+#define AI_MATKEY_FBX_NORMAL_TEXTURE "$raw.Maya|normalCamera|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_NORMAL_UV_XFORM "$raw.Maya|normalCamera|uvtrafo", aiTextureType_UNKNOWN, 0
+
+#define AI_MATKEY_FBX_MAYA_STINGRAY_DISPLACEMENT_SCALING_FACTOR "$raw.Maya|displacementscaling", 0, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_BASE_COLOR_FACTOR "$raw.Maya|base_color", 0, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_FACTOR "$raw.Maya|emissive", 0, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_METALLIC_FACTOR "$raw.Maya|metallic", 0, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_ROUGHNESS_FACTOR "$raw.Maya|roughness", 0, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_INTENSITY_FACTOR "$raw.Maya|emissive_intensity", 0, 0
+
+#define AI_MATKEY_FBX_MAYA_STINGRAY_NORMAL_TEXTURE "$raw.Maya|TEX_normal_map|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_NORMAL_UV_XFORM "$raw.Maya|TEX_normal_map|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_COLOR_TEXTURE "$raw.Maya|TEX_color_map|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_COLOR_UV_XFORM "$raw.Maya|TEX_color_map|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_METALLIC_TEXTURE "$raw.Maya|TEX_metallic_map|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_METALLIC_UV_XFORM "$raw.Maya|TEX_metallic_map|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_ROUGHNESS_TEXTURE "$raw.Maya|TEX_roughness_map|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_ROUGHNESS_UV_XFORM "$raw.Maya|TEX_roughness_map|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_TEXTURE "$raw.Maya|TEX_emissive_map|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_EMISSIVE_UV_XFORM "$raw.Maya|TEX_emissive_map|uvtrafo", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_AO_TEXTURE "$raw.Maya|TEX_ao_map|file", aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_FBX_MAYA_STINGRAY_AO_UV_XFORM "$raw.Maya|TEX_ao_map|uvtrafo", aiTextureType_UNKNOWN, 0
+
+class EditorSceneImporterAssimp : public EditorSceneImporter {
+private:
+	GDCLASS(EditorSceneImporterAssimp, EditorSceneImporter);
+	const String ASSIMP_FBX_KEY = "_$AssimpFbx$";
+
+	struct AssetImportAnimation {
+		enum Interpolation {
+			INTERP_LINEAR,
+			INTERP_STEP,
+			INTERP_CATMULLROMSPLINE,
+			INTERP_CUBIC_SPLINE
+		};
+	};
+
+	struct AssetImportFbx {
+		enum ETimeMode {
+			TIME_MODE_DEFAULT = 0,
+			TIME_MODE_120 = 1,
+			TIME_MODE_100 = 2,
+			TIME_MODE_60 = 3,
+			TIME_MODE_50 = 4,
+			TIME_MODE_48 = 5,
+			TIME_MODE_30 = 6,
+			TIME_MODE_30_DROP = 7,
+			TIME_MODE_NTSC_DROP_FRAME = 8,
+			TIME_MODE_NTSC_FULL_FRAME = 9,
+			TIME_MODE_PAL = 10,
+			TIME_MODE_CINEMA = 11,
+			TIME_MODE_1000 = 12,
+			TIME_MODE_CINEMA_ND = 13,
+			TIME_MODE_CUSTOM = 14,
+			TIME_MODE_TIME_MODE_COUNT = 15
+		};
+		enum UpAxis {
+			UP_VECTOR_AXIS_X = 1,
+			UP_VECTOR_AXIS_Y = 2,
+			UP_VECTOR_AXIS_Z = 3
+		};
+		enum FrontAxis {
+			FRONT_PARITY_EVEN = 1,
+			FRONT_PARITY_ODD = 2,
+		};
+
+		enum CoordAxis {
+			COORD_RIGHT = 0,
+			COORD_LEFT = 1
+		};
+	};
+
+	struct ImportState {
+
+		String path;
+		const aiScene *assimp_scene;
+		uint32_t max_bone_weights;
+		Spatial *root;
+		Map<String, Ref<Mesh> > mesh_cache;
+		Map<int, Ref<Material> > material_cache;
+		Map<String, int> light_cache;
+		Map<String, int> camera_cache;
+		Vector<Skeleton *> skeletons;
+		Map<String, int> bone_owners; //maps bones to skeleton index owned by
+		Map<String, Node *> node_map;
+		Map<MeshInstance *, Skeleton *> mesh_skeletons;
+		bool fbx; //for some reason assimp does some things different for FBX
+		AnimationPlayer *animation_player;
+	};
+
+	struct BoneInfo {
+		uint32_t bone;
+		float weight;
+	};
+
+	struct SkeletonHole { //nodes may be part of the skeleton by used by vertex
+		String name;
+		String parent;
+		Transform pose;
+		const aiNode *node;
+	};
+
+	const Transform _assimp_matrix_transform(const aiMatrix4x4 p_matrix);
+	String _assimp_get_string(const aiString p_string) const;
+	Transform _get_global_assimp_node_transform(const aiNode *p_current_node);
+
+	void _calc_tangent_from_mesh(const aiMesh *ai_mesh, int i, int tri_index, int index, PoolColorArray::Write &w);
+	void _set_texture_mapping_mode(aiTextureMapMode *map_mode, Ref<Texture> texture);
+	void _find_texture_path(const String &p_path, String &path, bool &r_found);
+	void _find_texture_path(const String &p_path, _Directory &dir, String &path, bool &found, String extension);
+
+	Ref<Texture> _load_texture(ImportState &state, String p_path);
+	Ref<Material> _generate_material_from_index(ImportState &state, int p_index, bool p_double_sided);
+	Ref<Mesh> _generate_mesh_from_surface_indices(ImportState &state, const Vector<int> &p_surface_indices, Skeleton *p_skeleton = NULL, bool p_double_sided_material = false);
+	void _generate_node(ImportState &state, const aiNode *p_assimp_node, Node *p_parent);
+	void _generate_bone_groups(ImportState &state, const aiNode *p_assimp_node, Map<String, int> &ownership, Map<String, Transform> &bind_xforms);
+	void _fill_node_relationships(ImportState &state, const aiNode *p_assimp_node, Map<String, int> &ownership, Map<int, int> &skeleton_map, int p_skeleton_id, Skeleton *p_skeleton, const String &p_parent_name, int &holecount, const Vector<SkeletonHole> &p_holes, const Map<String, Transform> &bind_xforms);
+	void _generate_skeletons(ImportState &state, const aiNode *p_assimp_node, Map<String, int> &ownership, Map<int, int> &skeleton_map, const Map<String, Transform> &bind_xforms);
+
+	void _insert_animation_track(ImportState &scene, const aiAnimation *assimp_anim, int p_track, int p_bake_fps, Ref<Animation> animation, float ticks_per_second, Skeleton *p_skeleton, const NodePath &p_path, const String &p_name);
+
+	void _import_animation(ImportState &state, int p_animation_index, int p_bake_fps);
+
+	Spatial *_generate_scene(const String &p_path, const aiScene *scene, const uint32_t p_flags, int p_bake_fps, const int32_t p_max_bone_weights);
+
+	String _assimp_anim_string_to_string(const aiString p_string) const;
+	String _assimp_raw_string_to_string(const aiString p_string) const;
+	float _get_fbx_fps(int32_t time_mode, const aiScene *p_scene);
+	template <class T>
+	T _interpolate_track(const Vector<float> &p_times, const Vector<T> &p_values, float p_time, AssetImportAnimation::Interpolation p_interp);
+	void _register_project_setting_import(const String generic, const String import_setting_string, const Vector<String> &exts, List<String> *r_extensions, const bool p_enabled) const;
+
+	struct ImportFormat {
+		Vector<String> extensions;
+		bool is_default;
+	};
+
+protected:
+	static void _bind_methods();
+
+public:
+	EditorSceneImporterAssimp() {
+		Assimp::DefaultLogger::create("", Assimp::Logger::VERBOSE);
+		unsigned int severity = Assimp::Logger::Info | Assimp::Logger::Err | Assimp::Logger::Warn;
+		Assimp::DefaultLogger::get()->attachStream(new AssimpStream(), severity);
+	}
+	~EditorSceneImporterAssimp() {
+		Assimp::DefaultLogger::kill();
+	}
+
+	virtual void get_extensions(List<String> *r_extensions) const;
+	virtual uint32_t get_import_flags() const;
+	virtual Node *import_scene(const String &p_path, uint32_t p_flags, int p_bake_fps, List<String> *r_missing_deps, Error *r_err = NULL);
+	virtual Ref<Animation> import_animation(const String &p_path, uint32_t p_flags, int p_bake_fps);
+};
+#endif
+#endif
diff --git a/modules/assimp/godot_update_assimp.sh b/modules/assimp/godot_update_assimp.sh
new file mode 100644
index 0000000000..dcf1e6d4a2
--- /dev/null
+++ b/modules/assimp/godot_update_assimp.sh
@@ -0,0 +1,261 @@
+rm -rf ../../thirdparty/assimp
+cd ../../thirdparty/
+git clone https://github.com/assimp/assimp.git
+cd assimp
+rm -rf code/3DSExporter.h
+rm -rf code/3DSLoader.h
+rm -rf code/3MFXmlTags.h
+rm -rf code/ABCImporter.h
+rm -rf code/ACLoader.h
+rm -rf code/AMFImporter_Macro.hpp
+rm -rf code/ASELoader.h
+rm -rf code/assbin_chunks.h
+rm -rf code/AssbinExporter.h
+rm -rf code/AssbinLoader.h
+rm -rf code/AssimpCExport.cpp
+rm -rf code/AssxmlExporter.h
+rm -rf code/B3DImporter.h
+# rm -rf code/BaseProcess.cpp
+# rm -rf code/BaseProcess.h
+# rm -rf code/Bitmap.cpp
+rm -rf code/BlenderBMesh.cpp
+rm -rf code/BlenderBMesh.h
+rm -rf code/BlenderCustomData.cpp
+rm -rf code/BlenderCustomData.h
+rm -rf code/BlenderIntermediate.h
+rm -rf code/BlenderLoader.h
+rm -rf code/BlenderModifier.h
+rm -rf code/BlenderSceneGen.h
+rm -rf code/BlenderTessellator.h
+rm -rf code/BVHLoader.h
+rm -rf code/C4DImporter.h
+# rm -rf code/CalcTangentsProcess.h
+# rm -rf code/CInterfaceIOWrapper.cpp
+# rm -rf code/CInterfaceIOWrapper.h
+rm -rf code/COBLoader.h
+rm -rf code/COBScene.h
+rm -rf code/ColladaExporter.h
+rm -rf code/ColladaLoader.h
+# rm -rf code/ComputeUVMappingProcess.h
+# rm -rf code/ConvertToLHProcess.h
+# rm -rf code/CreateAnimMesh.cpp
+rm -rf code/CSMLoader.h
+rm -rf code/D3MFExporter.h
+rm -rf code/D3MFImporter.h
+rm -rf code/D3MFOpcPackage.h
+# rm -rf code/DeboneProcess.h
+# rm -rf code/DefaultIOStream.cpp
+# rm -rf code/DefaultIOSystem.cpp
+# rm -rf code/DefaultProgressHandler.h
+# rm -rf code/DropFaceNormalsProcess.cpp
+# rm -rf code/DropFaceNormalsProcess.h
+rm -rf code/DXFHelper.h
+rm -rf code/DXFLoader.h
+# rm -rf code/EmbedTexturesProcess.cpp
+# rm -rf code/EmbedTexturesProcess.h
+# rm -rf code/FBXCommon.h
+# rm -rf code/FBXCompileConfig.h
+# rm -rf code/FBXDeformer.cpp
+# rm -rf code/FBXDocumentUtil.cpp
+# rm -rf code/FBXDocumentUtil.h
+# rm -rf code/FBXExporter.h
+# rm -rf code/FBXExportNode.h
+# rm -rf code/FBXExportProperty.h
+# rm -rf code/FBXImporter.cpp
+# rm -rf code/FBXImporter.h
+# rm -rf code/FBXImportSettings.h
+# rm -rf code/FBXMeshGeometry.h
+# rm -rf code/FBXModel.cpp
+# rm -rf code/FBXNodeAttribute.cpp
+# rm -rf code/FBXParser.h
+# rm -rf code/FBXProperties.cpp
+# rm -rf code/FBXProperties.h
+# rm -rf code/FBXTokenizer.cpp
+# rm -rf code/FBXTokenizer.h
+# rm -rf code/FBXUtil.cpp
+# rm -rf code/FBXUtil.h
+# rm -rf code/FileLogStream.h
+# rm -rf code/FindDegenerates.h
+# rm -rf code/FindInstancesProcess.h
+# rm -rf code/FindInvalidDataProcess.h
+rm -rf code/FIReader.hpp
+# rm -rf code/FixNormalsStep.cpp
+# rm -rf code/FixNormalsStep.h
+# rm -rf code/GenFaceNormalsProcess.cpp
+# rm -rf code/GenFaceNormalsProcess.h
+# rm -rf code/GenVertexNormalsProcess.cpp
+# rm -rf code/GenVertexNormalsProcess.h
+rm -rf code/glTF2Asset.h
+rm -rf code/glTF2Asset.inl
+rm -rf code/glTF2AssetWriter.inl
+rm -rf code/glTF2Exporter.cpp
+rm -rf code/glTF2Importer.cpp
+rm -rf code/glTF2AssetWriter.h
+rm -rf code/glTFAsset.h
+rm -rf code/glTFAsset.inl
+rm -rf code/glTFAssetWriter.inl
+rm -rf code/glTFExporter.cpp
+rm -rf code/glTFImporter.cpp
+rm -rf code/glTF2Exporter.h
+rm -rf code/glTF2Importer.h
+rm -rf code/glTFAssetWriter.h
+rm -rf code/glTFExporter.h
+rm -rf code/glTFImporter.h
+rm -rf code/HalfLifeFileData.h
+rm -rf code/HMPFileData.h
+rm -rf code/HMPLoader.h
+rm -rf code/HMPLoader.cpp
+rm -rf code/IFF.h
+# rm -rf code/Importer.h
+# rm -rf code/ImproveCacheLocality.h
+rm -rf code/IRRLoader.h
+rm -rf code/IRRMeshLoader.h
+rm -rf code/IRRShared.h
+# rm -rf code/JoinVerticesProcess.h
+# rm -rf code/LimitBoneWeightsProcess.cpp
+# rm -rf code/LimitBoneWeightsProcess.h
+rm -rf code/LWSLoader.h
+rm -rf code/makefile.mingw
+# rm -rf code/MakeVerboseFormat.cpp
+# rm -rf code/MakeVerboseFormat.h
+# rm -rf code/MaterialSystem.h
+rm -rf code/MD2FileData.h
+rm -rf code/MD2Loader.h
+rm -rf code/MD2NormalTable.h
+rm -rf code/MD3FileData.h
+rm -rf code/MD3Loader.h
+rm -rf code/MD4FileData.h
+rm -rf code/MD5Loader.h
+rm -rf code/MD5Parser.cpp
+rm -rf code/MDCFileData.h
+rm -rf code/MDCLoader.h
+rm -rf code/MDLDefaultColorMap.h
+# rm -rf code/MMDCpp14.h
+# rm -rf code/MMDImporter.h
+rm -rf code/MS3DLoader.h
+rm -rf code/NDOLoader.h
+rm -rf code/NFFLoader.h
+rm -rf code/ObjExporter.h
+rm -rf code/ObjFileImporter.h
+rm -rf code/ObjFileMtlImporter.h
+rm -rf code/ObjFileParser.h
+rm -rf code/ObjTools.h
+rm -rf code/ObjExporter.cpp
+rm -rf code/ObjFileImporter.cpp
+rm -rf code/ObjFileMtlImporter.cpp
+rm -rf code/ObjFileParser.cpp
+rm -rf code/OFFLoader.h
+rm -rf code/OFFLoader.cpp
+rm -rf code/OgreImporter.cpp
+rm -rf code/OgreImporter.h
+rm -rf code/OgreParsingUtils.h
+rm -rf code/OgreXmlSerializer.h
+rm -rf code/OgreXmlSerializer.cpp
+rm -rf code/OgreBinarySerializer.cpp
+rm -rf code/OpenGEXExporter.cpp
+rm -rf code/OpenGEXExporter.h
+rm -rf code/OpenGEXImporter.h
+rm -rf code/OpenGEXStructs.h
+rm -rf code/OpenGEXImporter.cpp
+# rm -rf code/OptimizeGraph.h
+# rm -rf code/OptimizeMeshes.cpp
+# rm -rf code/OptimizeMeshes.h
+rm -rf code/PlyExporter.h
+rm -rf code/PlyLoader.h
+# rm -rf code/PolyTools.h
+# rm -rf code/PostStepRegistry.cpp
+# rm -rf code/PretransformVertices.h
+rm -rf code/Q3BSPFileData.h
+rm -rf code/Q3BSPFileImporter.h
+rm -rf code/Q3BSPFileParser.cpp
+rm -rf code/Q3BSPFileParser.h
+rm -rf code/Q3BSPZipArchive.cpp
+rm -rf code/Q3BSPZipArchive.h
+rm -rf code/Q3DLoader.h
+rm -rf code/Q3DLoader.cpp
+rm -rf code/Q3BSPFileImporter.cpp
+rm -rf code/RawLoader.h
+# rm -rf code/RemoveComments.cpp
+# rm -rf code/RemoveRedundantMaterials.cpp
+# rm -rf code/RemoveRedundantMaterials.h
+# rm -rf code/RemoveVCProcess.h
+# rm -rf code/ScaleProcess.cpp
+# rm -rf code/ScaleProcess.h
+# rm -rf code/scene.cpp
+# rm -rf code/ScenePreprocessor.cpp
+# rm -rf code/ScenePreprocessor.h
+# rm -rf code/ScenePrivate.h
+# rm -rf code/SGSpatialSort.cpp
+rm -rf code/SIBImporter.h
+rm -rf code/SMDLoader.cpp
+# rm -rf code/simd.cpp
+# rm -rf code/simd.h
+# rm -rf code/SortByPTypeProcess.h
+# rm -rf code/SplitByBoneCountProcess.h
+# rm -rf code/SplitLargeMeshes.h
+# rm -rf code/StdOStreamLogStream.h
+rm -rf code/StepExporter.h
+rm -rf code/StepExporter.cpp
+rm -rf code/STLExporter.cpp
+rm -rf code/STLExporter.h
+rm -rf code/STLLoader.h
+rm -rf code/STLLoader.cpp
+# rm -rf code/TargetAnimation.cpp
+# rm -rf code/TargetAnimation.h
+rm -rf code/TerragenLoader.h
+rm -rf code/TerragenLoader.cpp
+# rm -rf code/TextureTransform.h
+# rm -rf code/TriangulateProcess.h
+rm -rf code/UnrealLoader.h
+# rm -rf code/ValidateDataStructure.h
+# rm -rf code/Version.cpp
+# rm -rf code/VertexTriangleAdjacency.cpp
+# rm -rf code/VertexTriangleAdjacency.h
+# rm -rf code/Win32DebugLogStream.h
+rm -rf code/X3DImporter_Macro.hpp
+rm -rf code/X3DImporter_Metadata.cpp
+rm -rf code/X3DImporter_Networking.cpp
+rm -rf code/X3DImporter_Texturing.cpp
+rm -rf code/X3DImporter_Shape.cpp
+rm -rf code/X3DImporter_Rendering.cpp
+rm -rf code/X3DImporter_Postprocess.cpp
+rm -rf code/X3DImporter_Light.cpp
+rm -rf code/X3DImporter_Group.cpp
+rm -rf code/X3DImporter_Geometry3D.cpp
+rm -rf code/X3DImporter_Geometry2D.cpp
+rm -rf code/X3DImporter.cpp
+rm -rf code/X3DExporter.cpp
+rm -rf code/X3DVocabulary.cpp
+rm -rf code/XFileExporter.h
+rm -rf code/XFileExporter.cpp
+rm -rf code/XFileHelper.h
+rm -rf code/XFileHelper.cpp
+rm -rf code/XFileImporter.h
+rm -rf code/XFileImporter.cpp
+rm -rf code/XFileParser.h
+rm -rf code/XFileParser.cpp
+rm -rf code/XGLLoader.h
+rm -rf code/XGLLoader.cpp
+rm -rf code/Importer
+rm -rf .git
+rm -rf cmake-modules
+rm -rf doc
+rm -rf packaging
+rm -rf port
+rm -rf samples
+rm -rf scripts
+rm -rf test
+rm -rf tools
+rm -rf contrib/zlib
+rm -rf contrib/android-cmake
+rm -rf contrib/gtest
+rm -rf contrib/clipper
+rm -rf contrib/irrXML
+rm -rf contrib/Open3DGC
+rm -rf contrib/openddlparser
+rm -rf contrib/poly2tri
+rm -rf contrib/rapidjson
+rm -rf contrib/unzip
+rm -rf contrib/zip
+rm -rf contrib/stb_image
+rm .travis*
diff --git a/modules/assimp/register_types.cpp b/modules/assimp/register_types.cpp
new file mode 100644
index 0000000000..2e8181372e
--- /dev/null
+++ b/modules/assimp/register_types.cpp
@@ -0,0 +1,59 @@
+/*************************************************************************/
+/*  register_types.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "register_types.h"
+
+#include "editor/editor_node.h"
+#include "editor_scene_importer_assimp.h"
+
+#ifdef TOOLS_ENABLED
+static void _editor_init() {
+	Ref<EditorSceneImporterAssimp> import_assimp;
+	import_assimp.instance();
+	ResourceImporterScene::get_singleton()->add_importer(import_assimp);
+}
+#endif
+
+void register_assimp_types() {
+
+#ifdef TOOLS_ENABLED
+	ClassDB::APIType prev_api = ClassDB::get_current_api();
+	ClassDB::set_current_api(ClassDB::API_EDITOR);
+
+	ClassDB::register_class<EditorSceneImporterAssimp>();
+
+	ClassDB::set_current_api(prev_api);
+
+	EditorNode::add_init_callback(_editor_init);
+#endif
+}
+
+void unregister_assimp_types() {
+}
diff --git a/modules/thekla_unwrap/register_types.h b/modules/assimp/register_types.h
index b911eed622..f841cd26b2 100644
--- a/modules/thekla_unwrap/register_types.h
+++ b/modules/assimp/register_types.h
@@ -28,5 +28,5 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-void register_thekla_unwrap_types();
-void unregister_thekla_unwrap_types();
+void register_assimp_types();
+void unregister_assimp_types();
diff --git a/modules/bmp/image_loader_bmp.cpp b/modules/bmp/image_loader_bmp.cpp
index a8172c7f52..bcc992db24 100644
--- a/modules/bmp/image_loader_bmp.cpp
+++ b/modules/bmp/image_loader_bmp.cpp
@@ -33,6 +33,7 @@
 Error ImageLoaderBMP::convert_to_image(Ref<Image> p_image,
 		const uint8_t *p_buffer,
 		const uint8_t *p_color_buffer,
+		const uint32_t color_table_size,
 		const bmp_header_s &p_header) {
 
 	Error err = OK;
@@ -46,32 +47,87 @@ Error ImageLoaderBMP::convert_to_image(Ref<Image> p_image,
 		size_t height = (size_t)p_header.bmp_info_header.bmp_height;
 		size_t bits_per_pixel = (size_t)p_header.bmp_info_header.bmp_bit_count;
 
-		if (p_header.bmp_info_header.bmp_compression != 0) {
+		if (p_header.bmp_info_header.bmp_compression != BI_RGB) {
 			err = FAILED;
 		}
+		// Check whether we can load it
 
-		if (!(bits_per_pixel == 24 || bits_per_pixel == 32)) {
-			err = FAILED;
-		}
+		if (bits_per_pixel == 1) {
+			// Requires bit unpacking...
+			ERR_FAIL_COND_V(width % 8 != 0, ERR_UNAVAILABLE);
+			ERR_FAIL_COND_V(height % 8 != 0, ERR_UNAVAILABLE);
+
+		} else if (bits_per_pixel == 4) {
+			// Requires bit unpacking...
+			ERR_FAIL_COND_V(width % 2 != 0, ERR_UNAVAILABLE);
+			ERR_FAIL_COND_V(height % 2 != 0, ERR_UNAVAILABLE);
 
+		} else if (bits_per_pixel == 16) {
+
+			ERR_FAIL_V(ERR_UNAVAILABLE);
+		}
 		if (err == OK) {
 
-			uint32_t line_width = ((p_header.bmp_info_header.bmp_width *
-										   p_header.bmp_info_header.bmp_bit_count / 8) +
-										  3) &
-								  ~3;
+			// Image data (might be indexed)
+			PoolVector<uint8_t> data;
+			int data_len = 0;
 
-			PoolVector<uint8_t> image_data;
-			err = image_data.resize(width * height * 4);
+			if (bits_per_pixel <= 8) { // indexed
+				data_len = width * height;
+			} else { // color
+				data_len = width * height * 4;
+			}
+			ERR_FAIL_COND_V(data_len == 0, ERR_BUG);
+			err = data.resize(data_len);
 
-			PoolVector<uint8_t>::Write image_data_w = image_data.write();
-			uint8_t *write_buffer = image_data_w.ptr();
+			PoolVector<uint8_t>::Write data_w = data.write();
+			uint8_t *write_buffer = data_w.ptr();
 
+			const uint32_t width_bytes = width * bits_per_pixel / 8;
+			const uint32_t line_width = (width_bytes + 3) & ~3;
+
+			// The actual data traversal is determined by
+			// the data width in case of 8/4/1 bit images
+			const uint32_t w = bits_per_pixel >= 24 ? width : width_bytes;
 			const uint8_t *line = p_buffer + (line_width * (height - 1));
+
 			for (unsigned int i = 0; i < height; i++) {
 				const uint8_t *line_ptr = line;
-				for (unsigned int j = 0; j < width; j++) {
+
+				for (unsigned int j = 0; j < w; j++) {
 					switch (bits_per_pixel) {
+						case 1: {
+							uint8_t color_index = *line_ptr;
+
+							write_buffer[index + 0] = (color_index >> 7) & 1;
+							write_buffer[index + 1] = (color_index >> 6) & 1;
+							write_buffer[index + 2] = (color_index >> 5) & 1;
+							write_buffer[index + 3] = (color_index >> 4) & 1;
+							write_buffer[index + 4] = (color_index >> 3) & 1;
+							write_buffer[index + 5] = (color_index >> 2) & 1;
+							write_buffer[index + 6] = (color_index >> 1) & 1;
+							write_buffer[index + 7] = (color_index >> 0) & 1;
+
+							index += 8;
+							line_ptr += 1;
+						} break;
+						case 4: {
+							uint8_t color_index = *line_ptr;
+
+							write_buffer[index + 0] = (color_index >> 4) & 0x0f;
+							write_buffer[index + 1] = color_index & 0x0f;
+
+							index += 2;
+							line_ptr += 1;
+						} break;
+						case 8: {
+							uint8_t color_index = *line_ptr;
+
+							write_buffer[index] = color_index;
+
+							index += 1;
+							line_ptr += 1;
+						} break;
 						case 24: {
 							uint32_t color = *((uint32_t *)line_ptr);
 
@@ -79,6 +135,7 @@ Error ImageLoaderBMP::convert_to_image(Ref<Image> p_image,
 							write_buffer[index + 1] = (color >> 8) & 0xff;
 							write_buffer[index + 0] = (color >> 16) & 0xff;
 							write_buffer[index + 3] = 0xff;
+
 							index += 4;
 							line_ptr += 3;
 						} break;
@@ -89,6 +146,7 @@ Error ImageLoaderBMP::convert_to_image(Ref<Image> p_image,
 							write_buffer[index + 1] = (color >> 8) & 0xff;
 							write_buffer[index + 0] = (color >> 16) & 0xff;
 							write_buffer[index + 3] = color >> 24;
+
 							index += 4;
 							line_ptr += 4;
 						} break;
@@ -96,7 +154,51 @@ Error ImageLoaderBMP::convert_to_image(Ref<Image> p_image,
 				}
 				line -= line_width;
 			}
-			p_image->create(width, height, 0, Image::FORMAT_RGBA8, image_data);
+
+			if (p_color_buffer == NULL || color_table_size == 0) { // regular pixels
+
+				p_image->create(width, height, 0, Image::FORMAT_RGBA8, data);
+
+			} else { // data is in indexed format, extend it
+
+				// Palette data
+				PoolVector<uint8_t> palette_data;
+				palette_data.resize(color_table_size * 4);
+
+				PoolVector<uint8_t>::Write palette_data_w = palette_data.write();
+				uint8_t *pal = palette_data_w.ptr();
+
+				const uint8_t *cb = p_color_buffer;
+
+				for (unsigned int i = 0; i < color_table_size; ++i) {
+					uint32_t color = *((uint32_t *)cb);
+
+					pal[i * 4 + 0] = (color >> 16) & 0xff;
+					pal[i * 4 + 1] = (color >> 8) & 0xff;
+					pal[i * 4 + 2] = (color)&0xff;
+					pal[i * 4 + 3] = 0xff;
+
+					cb += 4;
+				}
+				// Extend palette to image
+				PoolVector<uint8_t> extended_data;
+				extended_data.resize(data.size() * 4);
+
+				PoolVector<uint8_t>::Write ex_w = extended_data.write();
+				uint8_t *dest = ex_w.ptr();
+
+				const int num_pixels = width * height;
+
+				for (int i = 0; i < num_pixels; i++) {
+					dest[0] = pal[write_buffer[i] * 4 + 0];
+					dest[1] = pal[write_buffer[i] * 4 + 1];
+					dest[2] = pal[write_buffer[i] * 4 + 2];
+					dest[3] = pal[write_buffer[i] * 4 + 3];
+
+					dest += 4;
+				}
+				p_image->create(width, height, 0, Image::FORMAT_RGBA8, extended_data);
+			}
 		}
 	}
 	return err;
@@ -108,7 +210,9 @@ Error ImageLoaderBMP::load_image(Ref<Image> p_image, FileAccess *f,
 	bmp_header_s bmp_header;
 	Error err = ERR_INVALID_DATA;
 
-	if (f->get_len() > sizeof(bmp_header)) {
+	// A valid bmp file should always at least have a
+	// file header and a minimal info header
+	if (f->get_len() > BITMAP_FILE_HEADER_SIZE + BITMAP_INFO_HEADER_MIN_SIZE) {
 		// File Header
 		bmp_header.bmp_file_header.bmp_signature = f->get_16();
 		if (bmp_header.bmp_file_header.bmp_signature == BITMAP_SIGNATURE) {
@@ -118,9 +222,14 @@ Error ImageLoaderBMP::load_image(Ref<Image> p_image, FileAccess *f,
 
 			// Info Header
 			bmp_header.bmp_info_header.bmp_header_size = f->get_32();
+			ERR_FAIL_COND_V(bmp_header.bmp_info_header.bmp_header_size < BITMAP_INFO_HEADER_MIN_SIZE, ERR_FILE_CORRUPT);
+
 			bmp_header.bmp_info_header.bmp_width = f->get_32();
 			bmp_header.bmp_info_header.bmp_height = f->get_32();
+
 			bmp_header.bmp_info_header.bmp_planes = f->get_16();
+			ERR_FAIL_COND_V(bmp_header.bmp_info_header.bmp_planes != 1, ERR_FILE_CORRUPT);
+
 			bmp_header.bmp_info_header.bmp_bit_count = f->get_16();
 			bmp_header.bmp_info_header.bmp_compression = f->get_32();
 			bmp_header.bmp_info_header.bmp_size_image = f->get_32();
@@ -129,35 +238,34 @@ Error ImageLoaderBMP::load_image(Ref<Image> p_image, FileAccess *f,
 			bmp_header.bmp_info_header.bmp_colors_used = f->get_32();
 			bmp_header.bmp_info_header.bmp_important_colors = f->get_32();
 
-			bmp_header.bmp_info_header.bmp_red_mask = f->get_32();
-			bmp_header.bmp_info_header.bmp_green_mask = f->get_32();
-			bmp_header.bmp_info_header.bmp_blue_mask = f->get_32();
-			bmp_header.bmp_info_header.bmp_alpha_mask = f->get_32();
-			bmp_header.bmp_info_header.bmp_cs_type = f->get_32();
-			for (int i = 0; i < 9; i++)
-				bmp_header.bmp_info_header.bmp_endpoints[i] = f->get_32();
-
-			bmp_header.bmp_info_header.bmp_gamma_red = f->get_32();
-			bmp_header.bmp_info_header.bmp_gamma_green = f->get_32();
-			bmp_header.bmp_info_header.bmp_gamma_blue = f->get_32();
-
-			f->seek(sizeof(bmp_header.bmp_file_header) +
-					bmp_header.bmp_info_header.bmp_header_size);
+			// Compressed bitmaps not supported, stop parsing
+			if (bmp_header.bmp_info_header.bmp_compression != BI_RGB) {
+				ERR_EXPLAIN("Unsupported bmp file: " + f->get_path());
+				f->close();
+				ERR_FAIL_V(ERR_UNAVAILABLE);
+			}
+			// Don't rely on sizeof(bmp_file_header) as structure padding
+			// adds 2 bytes offset leading to misaligned color table reading
+			uint32_t ct_offset = BITMAP_FILE_HEADER_SIZE +
+								 bmp_header.bmp_info_header.bmp_header_size;
+			f->seek(ct_offset);
 
 			uint32_t color_table_size = 0;
-			if (bmp_header.bmp_info_header.bmp_bit_count == 1)
-				color_table_size = 2;
-			else if (bmp_header.bmp_info_header.bmp_bit_count == 4)
-				color_table_size = 16;
-			else if (bmp_header.bmp_info_header.bmp_bit_count == 8)
-				color_table_size = 256;
+
+			// bmp_colors_used may report 0 despite having a color table
+			// for 4 and 1 bit images, so don't rely on this information
+			if (bmp_header.bmp_info_header.bmp_bit_count <= 8) {
+				// Support 256 colors max
+				color_table_size = 1 << bmp_header.bmp_info_header.bmp_bit_count;
+			}
+			ERR_FAIL_COND_V(color_table_size == 0, ERR_BUG);
 
 			PoolVector<uint8_t> bmp_color_table;
 			if (color_table_size > 0) {
+				// Color table is usually 4 bytes per color -> [B][G][R][0]
 				err = bmp_color_table.resize(color_table_size * 4);
 				PoolVector<uint8_t>::Write bmp_color_table_w = bmp_color_table.write();
-				f->get_buffer(bmp_color_table_w.ptr(),
-						bmp_header.bmp_info_header.bmp_colors_used * 4);
+				f->get_buffer(bmp_color_table_w.ptr(), color_table_size * 4);
 			}
 
 			f->seek(bmp_header.bmp_file_header.bmp_file_offset);
@@ -174,7 +282,7 @@ Error ImageLoaderBMP::load_image(Ref<Image> p_image, FileAccess *f,
 				PoolVector<uint8_t>::Read bmp_buffer_r = bmp_buffer.read();
 				PoolVector<uint8_t>::Read bmp_color_table_r = bmp_color_table.read();
 				err = convert_to_image(p_image, bmp_buffer_r.ptr(),
-						bmp_color_table_r.ptr(), bmp_header);
+						bmp_color_table_r.ptr(), color_table_size, bmp_header);
 			}
 			f->close();
 		}
diff --git a/modules/bmp/image_loader_bmp.h b/modules/bmp/image_loader_bmp.h
index d6899061d0..0082cf778a 100644
--- a/modules/bmp/image_loader_bmp.h
+++ b/modules/bmp/image_loader_bmp.h
@@ -37,6 +37,22 @@ class ImageLoaderBMP : public ImageFormatLoader {
 protected:
 	static const unsigned BITMAP_SIGNATURE = 0x4d42;
 
+	static const unsigned BITMAP_FILE_HEADER_SIZE = 14; // bmp_file_header_s
+	static const unsigned BITMAP_INFO_HEADER_MIN_SIZE = 40; // bmp_info_header_s
+
+	enum bmp_compression_s {
+		BI_RGB = 0x00,
+		BI_RLE8 = 0x01,
+		BI_RLE4 = 0x02,
+		BI_BITFIELDS = 0x03,
+		BI_JPEG = 0x04,
+		BI_PNG = 0x05,
+		BI_ALPHABITFIELDS = 0x06,
+		BI_CMYK = 0x0b,
+		BI_CMYKRLE8 = 0x0c,
+		BI_CMYKRLE4 = 0x0d
+	};
+
 	struct bmp_header_s {
 		struct bmp_file_header_s {
 			uint16_t bmp_signature;
@@ -57,21 +73,13 @@ protected:
 			uint32_t bmp_pixels_per_meter_y;
 			uint32_t bmp_colors_used;
 			uint32_t bmp_important_colors;
-			uint32_t bmp_red_mask;
-			uint32_t bmp_green_mask;
-			uint32_t bmp_blue_mask;
-			uint32_t bmp_alpha_mask;
-			uint32_t bmp_cs_type;
-			uint32_t bmp_endpoints[9];
-			uint32_t bmp_gamma_red;
-			uint32_t bmp_gamma_green;
-			uint32_t bmp_gamma_blue;
 		} bmp_info_header;
 	};
 
 	static Error convert_to_image(Ref<Image> p_image,
 			const uint8_t *p_buffer,
 			const uint8_t *p_color_buffer,
+			const uint32_t color_table_size,
 			const bmp_header_s &p_header);
 
 public:
diff --git a/modules/bullet/SCsub b/modules/bullet/SCsub
index 7e714ba43f..16d694c238 100644
--- a/modules/bullet/SCsub
+++ b/modules/bullet/SCsub
@@ -186,9 +186,9 @@ if env['builtin_bullet']:
 
     thirdparty_sources = [thirdparty_dir + file for file in bullet2_src]
 
-    env_bullet.Append(CPPPATH=[thirdparty_dir])
+    env_bullet.Prepend(CPPPATH=[thirdparty_dir])
     # if env['target'] == "debug" or env['target'] == "release_debug":
-    #     env_bullet.Append(CCFLAGS=['-DBT_DEBUG'])
+    #     env_bullet.Append(CPPFLAGS=['-DBT_DEBUG'])
 
     env_thirdparty = env_bullet.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/bullet/btRayShape.cpp b/modules/bullet/btRayShape.cpp
index b902d08eca..b60d6ba693 100644
--- a/modules/bullet/btRayShape.cpp
+++ b/modules/bullet/btRayShape.cpp
@@ -54,6 +54,11 @@ void btRayShape::setLength(btScalar p_length) {
 	reload_cache();
 }
 
+void btRayShape::setMargin(btScalar margin) {
+	btConvexInternalShape::setMargin(margin);
+	reload_cache();
+}
+
 void btRayShape::setSlipsOnSlope(bool p_slipsOnSlope) {
 
 	slipsOnSlope = p_slipsOnSlope;
@@ -77,10 +82,9 @@ void btRayShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVecto
 }
 
 void btRayShape::getAabb(const btTransform &t, btVector3 &aabbMin, btVector3 &aabbMax) const {
-#define MARGIN_BROADPHASE 0.1
 	btVector3 localAabbMin(0, 0, 0);
-	btVector3 localAabbMax(m_shapeAxis * (m_cacheScaledLength + m_collisionMargin));
-	btTransformAabb(localAabbMin, localAabbMax, MARGIN_BROADPHASE, t, aabbMin, aabbMax);
+	btVector3 localAabbMax(m_shapeAxis * m_cacheScaledLength);
+	btTransformAabb(localAabbMin, localAabbMax, m_collisionMargin, t, aabbMin, aabbMax);
 }
 
 void btRayShape::calculateLocalInertia(btScalar mass, btVector3 &inertia) const {
@@ -100,5 +104,5 @@ void btRayShape::reload_cache() {
 	m_cacheScaledLength = m_length * m_localScaling[2];
 
 	m_cacheSupportPoint.setIdentity();
-	m_cacheSupportPoint.setOrigin(m_shapeAxis * (m_cacheScaledLength + m_collisionMargin));
+	m_cacheSupportPoint.setOrigin(m_shapeAxis * m_cacheScaledLength);
 }
diff --git a/modules/bullet/btRayShape.h b/modules/bullet/btRayShape.h
index 7fedb74083..7f3229b3e8 100644
--- a/modules/bullet/btRayShape.h
+++ b/modules/bullet/btRayShape.h
@@ -60,6 +60,8 @@ public:
 	void setLength(btScalar p_length);
 	btScalar getLength() const { return m_length; }
 
+	virtual void setMargin(btScalar margin);
+
 	void setSlipsOnSlope(bool p_slipOnSlope);
 	bool getSlipsOnSlope() const { return slipsOnSlope; }
 
diff --git a/modules/bullet/bullet_physics_server.cpp b/modules/bullet/bullet_physics_server.cpp
index 44ea061f51..be4e0b88e8 100644
--- a/modules/bullet/bullet_physics_server.cpp
+++ b/modules/bullet/bullet_physics_server.cpp
@@ -279,14 +279,14 @@ PhysicsServer::AreaSpaceOverrideMode BulletPhysicsServer::area_get_space_overrid
 	return area->get_spOv_mode();
 }
 
-void BulletPhysicsServer::area_add_shape(RID p_area, RID p_shape, const Transform &p_transform) {
+void BulletPhysicsServer::area_add_shape(RID p_area, RID p_shape, const Transform &p_transform, bool p_disabled) {
 	AreaBullet *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
 
 	ShapeBullet *shape = shape_owner.get(p_shape);
 	ERR_FAIL_COND(!shape);
 
-	area->add_shape(shape, p_transform);
+	area->add_shape(shape, p_transform, p_disabled);
 }
 
 void BulletPhysicsServer::area_set_shape(RID p_area, int p_shape_idx, RID p_shape) {
@@ -348,13 +348,13 @@ void BulletPhysicsServer::area_set_shape_disabled(RID p_area, int p_shape_idx, b
 	area->set_shape_disabled(p_shape_idx, p_disabled);
 }
 
-void BulletPhysicsServer::area_attach_object_instance_id(RID p_area, ObjectID p_ID) {
+void BulletPhysicsServer::area_attach_object_instance_id(RID p_area, ObjectID p_id) {
 	if (space_owner.owns(p_area)) {
 		return;
 	}
 	AreaBullet *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
-	area->set_instance_id(p_ID);
+	area->set_instance_id(p_id);
 }
 
 ObjectID BulletPhysicsServer::area_get_object_instance_id(RID p_area) const {
@@ -498,7 +498,7 @@ PhysicsServer::BodyMode BulletPhysicsServer::body_get_mode(RID p_body) const {
 	return body->get_mode();
 }
 
-void BulletPhysicsServer::body_add_shape(RID p_body, RID p_shape, const Transform &p_transform) {
+void BulletPhysicsServer::body_add_shape(RID p_body, RID p_shape, const Transform &p_transform, bool p_disabled) {
 
 	RigidBodyBullet *body = rigid_body_owner.get(p_body);
 	ERR_FAIL_COND(!body);
@@ -506,7 +506,7 @@ void BulletPhysicsServer::body_add_shape(RID p_body, RID p_shape, const Transfor
 	ShapeBullet *shape = shape_owner.get(p_shape);
 	ERR_FAIL_COND(!shape);
 
-	body->add_shape(shape, p_transform);
+	body->add_shape(shape, p_transform, p_disabled);
 }
 
 void BulletPhysicsServer::body_set_shape(RID p_body, int p_shape_idx, RID p_shape) {
@@ -569,11 +569,11 @@ void BulletPhysicsServer::body_clear_shapes(RID p_body) {
 	body->remove_all_shapes();
 }
 
-void BulletPhysicsServer::body_attach_object_instance_id(RID p_body, uint32_t p_ID) {
+void BulletPhysicsServer::body_attach_object_instance_id(RID p_body, uint32_t p_id) {
 	CollisionObjectBullet *body = get_collisin_object(p_body);
 	ERR_FAIL_COND(!body);
 
-	body->set_instance_id(p_ID);
+	body->set_instance_id(p_id);
 }
 
 uint32_t BulletPhysicsServer::body_get_object_instance_id(RID p_body) const {
diff --git a/modules/bullet/bullet_physics_server.h b/modules/bullet/bullet_physics_server.h
index 1b74cbf3fc..0b8ad53658 100644
--- a/modules/bullet/bullet_physics_server.h
+++ b/modules/bullet/bullet_physics_server.h
@@ -133,7 +133,7 @@ public:
 	virtual void area_set_space_override_mode(RID p_area, AreaSpaceOverrideMode p_mode);
 	virtual AreaSpaceOverrideMode area_get_space_override_mode(RID p_area) const;
 
-	virtual void area_add_shape(RID p_area, RID p_shape, const Transform &p_transform = Transform());
+	virtual void area_add_shape(RID p_area, RID p_shape, const Transform &p_transform = Transform(), bool p_disabled = false);
 	virtual void area_set_shape(RID p_area, int p_shape_idx, RID p_shape);
 	virtual void area_set_shape_transform(RID p_area, int p_shape_idx, const Transform &p_transform);
 	virtual int area_get_shape_count(RID p_area) const;
@@ -142,7 +142,7 @@ public:
 	virtual void area_remove_shape(RID p_area, int p_shape_idx);
 	virtual void area_clear_shapes(RID p_area);
 	virtual void area_set_shape_disabled(RID p_area, int p_shape_idx, bool p_disabled);
-	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_ID);
+	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_id);
 	virtual ObjectID area_get_object_instance_id(RID p_area) const;
 
 	/// If you pass as p_area the SpaceBullet you can set some parameters as specified below
@@ -174,7 +174,7 @@ public:
 	virtual void body_set_mode(RID p_body, BodyMode p_mode);
 	virtual BodyMode body_get_mode(RID p_body) const;
 
-	virtual void body_add_shape(RID p_body, RID p_shape, const Transform &p_transform = Transform());
+	virtual void body_add_shape(RID p_body, RID p_shape, const Transform &p_transform = Transform(), bool p_disabled = false);
 	// Not supported, Please remove and add new shape
 	virtual void body_set_shape(RID p_body, int p_shape_idx, RID p_shape);
 	virtual void body_set_shape_transform(RID p_body, int p_shape_idx, const Transform &p_transform);
@@ -189,7 +189,7 @@ public:
 	virtual void body_clear_shapes(RID p_body);
 
 	// Used for Rigid and Soft Bodies
-	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_ID);
+	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_id);
 	virtual uint32_t body_get_object_instance_id(RID p_body) const;
 
 	virtual void body_set_enable_continuous_collision_detection(RID p_body, bool p_enable);
diff --git a/modules/bullet/collision_object_bullet.cpp b/modules/bullet/collision_object_bullet.cpp
index ef5f21fc21..166d7e6158 100644
--- a/modules/bullet/collision_object_bullet.cpp
+++ b/modules/bullet/collision_object_bullet.cpp
@@ -43,7 +43,9 @@
 	@author AndreaCatania
 */
 
-#define enableDynamicAabbTree false
+// We enable dynamic AABB tree so that we can actually perform a broadphase on bodies with compound collision shapes.
+// This is crucial for the performance of kinematic bodies and for bodies with transforming shapes.
+#define enableDynamicAabbTree true
 
 CollisionObjectBullet::ShapeWrapper::~ShapeWrapper() {}
 
@@ -57,6 +59,25 @@ void CollisionObjectBullet::ShapeWrapper::set_transform(const btTransform &p_tra
 	transform = p_transform;
 }
 
+btTransform CollisionObjectBullet::ShapeWrapper::get_adjusted_transform() const {
+	if (shape->get_type() == PhysicsServer::SHAPE_HEIGHTMAP) {
+		const HeightMapShapeBullet *hm_shape = (const HeightMapShapeBullet *)shape; // should be safe to cast now
+		btTransform adjusted_transform;
+
+		// Bullet centers our heightmap:
+		// https://github.com/bulletphysics/bullet3/blob/master/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h#L33
+		// This is really counter intuitive so we're adjusting for it
+
+		adjusted_transform.setIdentity();
+		adjusted_transform.setOrigin(btVector3(0.0, hm_shape->min_height + ((hm_shape->max_height - hm_shape->min_height) * 0.5), 0.0));
+		adjusted_transform *= transform;
+
+		return adjusted_transform;
+	} else {
+		return transform;
+	}
+}
+
 void CollisionObjectBullet::ShapeWrapper::claim_bt_shape(const btVector3 &body_scale) {
 	if (!bt_shape) {
 		if (active)
@@ -216,8 +237,8 @@ RigidCollisionObjectBullet::~RigidCollisionObjectBullet() {
 	}
 }
 
-void RigidCollisionObjectBullet::add_shape(ShapeBullet *p_shape, const Transform &p_transform) {
-	shapes.push_back(ShapeWrapper(p_shape, p_transform, true));
+void RigidCollisionObjectBullet::add_shape(ShapeBullet *p_shape, const Transform &p_transform, bool p_disabled) {
+	shapes.push_back(ShapeWrapper(p_shape, p_transform, !p_disabled));
 	p_shape->add_owner(this);
 	reload_shapes();
 }
@@ -284,7 +305,6 @@ void RigidCollisionObjectBullet::set_shape_transform(int p_index, const Transfor
 	ERR_FAIL_INDEX(p_index, get_shape_count());
 
 	shapes.write[p_index].set_transform(p_transform);
-	// Note, enableDynamicAabbTree is false because on transform change compound is destroyed
 	reload_shapes();
 }
 
@@ -299,6 +319,8 @@ Transform RigidCollisionObjectBullet::get_shape_transform(int p_index) const {
 }
 
 void RigidCollisionObjectBullet::set_shape_disabled(int p_index, bool p_disabled) {
+	if (shapes[p_index].active != p_disabled)
+		return;
 	shapes.write[p_index].active = !p_disabled;
 	shape_changed(p_index);
 }
@@ -342,7 +364,8 @@ void RigidCollisionObjectBullet::reload_shapes() {
 	// Try to optimize by not using compound
 	if (1 == shape_count) {
 		shpWrapper = &shapes.write[0];
-		if (shpWrapper->transform.getOrigin().isZero() && shpWrapper->transform.getBasis() == shpWrapper->transform.getBasis().getIdentity()) {
+		btTransform transform = shpWrapper->get_adjusted_transform();
+		if (transform.getOrigin().isZero() && transform.getBasis() == transform.getBasis().getIdentity()) {
 			shpWrapper->claim_bt_shape(body_scale);
 			mainShape = shpWrapper->bt_shape;
 			main_shape_changed();
@@ -356,7 +379,7 @@ void RigidCollisionObjectBullet::reload_shapes() {
 	for (int i(0); i < shape_count; ++i) {
 		shpWrapper = &shapes.write[i];
 		shpWrapper->claim_bt_shape(body_scale);
-		btTransform scaled_shape_transform(shpWrapper->transform);
+		btTransform scaled_shape_transform(shpWrapper->get_adjusted_transform());
 		scaled_shape_transform.getOrigin() *= body_scale;
 		compoundShape->addChildShape(scaled_shape_transform, shpWrapper->bt_shape);
 	}
diff --git a/modules/bullet/collision_object_bullet.h b/modules/bullet/collision_object_bullet.h
index 2d4e5c4f1a..c9430bec18 100644
--- a/modules/bullet/collision_object_bullet.h
+++ b/modules/bullet/collision_object_bullet.h
@@ -109,6 +109,7 @@ public:
 
 		void set_transform(const Transform &p_transform);
 		void set_transform(const btTransform &p_transform);
+		btTransform get_adjusted_transform() const;
 
 		void claim_bt_shape(const btVector3 &body_scale);
 	};
@@ -224,7 +225,7 @@ public:
 
 	_FORCE_INLINE_ btCollisionShape *get_main_shape() const { return mainShape; }
 
-	void add_shape(ShapeBullet *p_shape, const Transform &p_transform = Transform());
+	void add_shape(ShapeBullet *p_shape, const Transform &p_transform = Transform(), bool p_disabled = false);
 	void set_shape(int p_index, ShapeBullet *p_shape);
 
 	int get_shape_count() const;
diff --git a/modules/bullet/doc_classes/BulletPhysicsDirectBodyState.xml b/modules/bullet/doc_classes/BulletPhysicsDirectBodyState.xml
index a4dc61d0bc..078bcc45a8 100644
--- a/modules/bullet/doc_classes/BulletPhysicsDirectBodyState.xml
+++ b/modules/bullet/doc_classes/BulletPhysicsDirectBodyState.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BulletPhysicsDirectBodyState" inherits="PhysicsDirectBodyState" category="Core" version="3.1">
+<class name="BulletPhysicsDirectBodyState" inherits="PhysicsDirectBodyState" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/bullet/doc_classes/BulletPhysicsServer.xml b/modules/bullet/doc_classes/BulletPhysicsServer.xml
index 1486936cf4..2a37f6af5e 100644
--- a/modules/bullet/doc_classes/BulletPhysicsServer.xml
+++ b/modules/bullet/doc_classes/BulletPhysicsServer.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="BulletPhysicsServer" inherits="PhysicsServer" category="Core" version="3.1">
+<class name="BulletPhysicsServer" inherits="PhysicsServer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/bullet/godot_ray_world_algorithm.cpp b/modules/bullet/godot_ray_world_algorithm.cpp
index 3e06239453..2ba75b9a98 100644
--- a/modules/bullet/godot_ray_world_algorithm.cpp
+++ b/modules/bullet/godot_ray_world_algorithm.cpp
@@ -39,6 +39,9 @@
 	@author AndreaCatania
 */
 
+// Epsilon to account for floating point inaccuracies
+#define RAY_PENETRATION_DEPTH_EPSILON 0.01
+
 GodotRayWorldAlgorithm::CreateFunc::CreateFunc(const btDiscreteDynamicsWorld *world) :
 		m_world(world) {}
 
@@ -100,8 +103,8 @@ void GodotRayWorldAlgorithm::processCollision(const btCollisionObjectWrapper *bo
 
 		btScalar depth(ray_shape->getScaledLength() * (btResult.m_closestHitFraction - 1));
 
-		if (depth >= -ray_shape->getMargin() * 0.5)
-			depth = 0;
+		if (depth > -RAY_PENETRATION_DEPTH_EPSILON)
+			depth = 0.0;
 
 		if (ray_shape->getSlipsOnSlope())
 			resultOut->addContactPoint(btResult.m_hitNormalWorld, btResult.m_hitPointWorld, depth);
diff --git a/modules/bullet/rigid_body_bullet.cpp b/modules/bullet/rigid_body_bullet.cpp
index 22f2214898..e5f70a0b34 100644
--- a/modules/bullet/rigid_body_bullet.cpp
+++ b/modules/bullet/rigid_body_bullet.cpp
@@ -597,6 +597,8 @@ void RigidBodyBullet::set_state(PhysicsServer::BodyState p_state, const Variant
 			if (!can_sleep) {
 				// Can't sleep
 				btBody->forceActivationState(DISABLE_DEACTIVATION);
+			} else {
+				btBody->forceActivationState(ACTIVE_TAG);
 			}
 			break;
 	}
diff --git a/modules/bullet/shape_bullet.cpp b/modules/bullet/shape_bullet.cpp
index 1aba31f03d..b590d63167 100644
--- a/modules/bullet/shape_bullet.cpp
+++ b/modules/bullet/shape_bullet.cpp
@@ -510,16 +510,17 @@ void HeightMapShapeBullet::set_data(const Variant &p_data) {
 	// Compute min and max heights if not specified.
 	if (!d.has("min_height") && !d.has("max_height")) {
 
-		PoolVector<real_t>::Read r = heights.read();
-		int heights_size = heights.size();
+		PoolVector<real_t>::Read r = l_heights.read();
+		int heights_size = l_heights.size();
 
 		for (int i = 0; i < heights_size; ++i) {
 			real_t h = r[i];
 
-			if (h < l_min_height)
+			if (h < l_min_height) {
 				l_min_height = h;
-			else if (h > l_max_height)
+			} else if (h > l_max_height) {
 				l_max_height = h;
+			}
 		}
 	}
 
diff --git a/modules/bullet/space_bullet.cpp b/modules/bullet/space_bullet.cpp
index 8fb8eba057..6bfd98873e 100644
--- a/modules/bullet/space_bullet.cpp
+++ b/modules/bullet/space_bullet.cpp
@@ -1043,23 +1043,16 @@ int SpaceBullet::test_ray_separation(RigidBodyBullet *p_body, const Transform &p
 	btVector3 recover_motion(0, 0, 0);
 
 	int rays_found = 0;
+	int rays_found_this_round = 0;
 
 	for (int t(RECOVERING_MOVEMENT_CYCLES); 0 < t; --t) {
-		int last_ray_index = recover_from_penetration_ray(p_body, body_transform, RECOVERING_MOVEMENT_SCALE, p_infinite_inertia, p_result_max, recover_motion, r_results);
+		PhysicsServer::SeparationResult *next_results = &r_results[rays_found];
+		rays_found_this_round = recover_from_penetration_ray(p_body, body_transform, RECOVERING_MOVEMENT_SCALE, p_infinite_inertia, p_result_max - rays_found, recover_motion, next_results);
 
-		rays_found = MAX(last_ray_index, rays_found);
-		if (!rays_found) {
-			break;
-		} else {
+		rays_found += rays_found_this_round;
+		if (rays_found_this_round == 0) {
 			body_transform.getOrigin() += recover_motion;
-		}
-	}
-
-	//optimize results (remove non colliding)
-	for (int i = 0; i < rays_found; i++) {
-		if (r_results[i].collision_depth >= 0) {
-			rays_found--;
-			SWAP(r_results[i], r_results[rays_found]);
+			break;
 		}
 	}
 
@@ -1069,18 +1062,47 @@ int SpaceBullet::test_ray_separation(RigidBodyBullet *p_body, const Transform &p
 
 struct RecoverPenetrationBroadPhaseCallback : public btBroadphaseAabbCallback {
 private:
+	btDbvtVolume bounds;
+
 	const btCollisionObject *self_collision_object;
 	uint32_t collision_layer;
 	uint32_t collision_mask;
 
+	struct CompoundLeafCallback : btDbvt::ICollide {
+	private:
+		RecoverPenetrationBroadPhaseCallback *parent_callback;
+		btCollisionObject *collision_object;
+
+	public:
+		CompoundLeafCallback(RecoverPenetrationBroadPhaseCallback *p_parent_callback, btCollisionObject *p_collision_object) :
+				parent_callback(p_parent_callback),
+				collision_object(p_collision_object) {
+		}
+
+		void Process(const btDbvtNode *leaf) {
+			BroadphaseResult result;
+			result.collision_object = collision_object;
+			result.compound_child_index = leaf->dataAsInt;
+			parent_callback->results.push_back(result);
+		}
+	};
+
 public:
-	Vector<btCollisionObject *> result_collision_objects;
+	struct BroadphaseResult {
+		btCollisionObject *collision_object;
+		int compound_child_index;
+	};
+
+	Vector<BroadphaseResult> results;
 
 public:
-	RecoverPenetrationBroadPhaseCallback(const btCollisionObject *p_self_collision_object, uint32_t p_collision_layer, uint32_t p_collision_mask) :
+	RecoverPenetrationBroadPhaseCallback(const btCollisionObject *p_self_collision_object, uint32_t p_collision_layer, uint32_t p_collision_mask, btVector3 p_aabb_min, btVector3 p_aabb_max) :
 			self_collision_object(p_self_collision_object),
 			collision_layer(p_collision_layer),
-			collision_mask(p_collision_mask) {}
+			collision_mask(p_collision_mask) {
+
+		bounds = btDbvtVolume::FromMM(p_aabb_min, p_aabb_max);
+	}
 
 	virtual ~RecoverPenetrationBroadPhaseCallback() {}
 
@@ -1089,35 +1111,98 @@ public:
 		btCollisionObject *co = static_cast<btCollisionObject *>(proxy->m_clientObject);
 		if (co->getInternalType() <= btCollisionObject::CO_RIGID_BODY) {
 			if (self_collision_object != proxy->m_clientObject && GodotFilterCallback::test_collision_filters(collision_layer, collision_mask, proxy->m_collisionFilterGroup, proxy->m_collisionFilterMask)) {
-				result_collision_objects.push_back(co);
+				if (co->getCollisionShape()->isCompound()) {
+					const btCompoundShape *cs = static_cast<btCompoundShape *>(co->getCollisionShape());
+
+					if (cs->getNumChildShapes() > 1) {
+						const btDbvt *tree = cs->getDynamicAabbTree();
+						ERR_FAIL_COND_V(tree == NULL, true);
+
+						// Transform bounds into compound shape local space
+						const btTransform other_in_compound_space = co->getWorldTransform().inverse();
+						const btMatrix3x3 abs_b = other_in_compound_space.getBasis().absolute();
+						const btVector3 local_center = other_in_compound_space(bounds.Center());
+						const btVector3 local_extent = bounds.Extents().dot3(abs_b[0], abs_b[1], abs_b[2]);
+						const btVector3 local_aabb_min = local_center - local_extent;
+						const btVector3 local_aabb_max = local_center + local_extent;
+						const btDbvtVolume local_bounds = btDbvtVolume::FromMM(local_aabb_min, local_aabb_max);
+
+						// Test collision against compound child shapes using its AABB tree
+						CompoundLeafCallback compound_leaf_callback(this, co);
+						tree->collideTV(tree->m_root, local_bounds, compound_leaf_callback);
+					} else {
+						// If there's only a single child shape then there's no need to search any more, we know which child overlaps
+						BroadphaseResult result;
+						result.collision_object = co;
+						result.compound_child_index = 0;
+						results.push_back(result);
+					}
+				} else {
+					BroadphaseResult result;
+					result.collision_object = co;
+					result.compound_child_index = -1;
+					results.push_back(result);
+				}
 				return true;
 			}
 		}
 		return false;
 	}
-
-	void reset() {
-		result_collision_objects.clear();
-	}
 };
 
 bool SpaceBullet::recover_from_penetration(RigidBodyBullet *p_body, const btTransform &p_body_position, btScalar p_recover_movement_scale, bool p_infinite_inertia, btVector3 &r_delta_recover_movement, RecoverResult *r_recover_result) {
 
-	RecoverPenetrationBroadPhaseCallback recover_broad_result(p_body->get_bt_collision_object(), p_body->get_collision_layer(), p_body->get_collision_mask());
+	// Calculate the cummulative AABB of all shapes of the kinematic body
+	btVector3 aabb_min, aabb_max;
+	bool shapes_found = false;
+
+	for (int kinIndex = p_body->get_kinematic_utilities()->shapes.size() - 1; 0 <= kinIndex; --kinIndex) {
+
+		const RigidBodyBullet::KinematicShape &kin_shape(p_body->get_kinematic_utilities()->shapes[kinIndex]);
+		if (!kin_shape.is_active()) {
+			continue;
+		}
+
+		if (kin_shape.shape->getShapeType() == CUSTOM_CONVEX_SHAPE_TYPE) {
+			// Skip rayshape in order to implement custom separation process
+			continue;
+		}
+
+		btTransform shape_transform = p_body_position * kin_shape.transform;
+		shape_transform.getOrigin() += r_delta_recover_movement;
+
+		btVector3 shape_aabb_min, shape_aabb_max;
+		kin_shape.shape->getAabb(shape_transform, shape_aabb_min, shape_aabb_max);
+
+		if (!shapes_found) {
+			aabb_min = shape_aabb_min;
+			aabb_max = shape_aabb_max;
+			shapes_found = true;
+		} else {
+			aabb_min.setX((aabb_min.x() < shape_aabb_min.x()) ? aabb_min.x() : shape_aabb_min.x());
+			aabb_min.setY((aabb_min.y() < shape_aabb_min.y()) ? aabb_min.y() : shape_aabb_min.y());
+			aabb_min.setZ((aabb_min.z() < shape_aabb_min.z()) ? aabb_min.z() : shape_aabb_min.z());
+
+			aabb_max.setX((aabb_max.x() > shape_aabb_max.x()) ? aabb_max.x() : shape_aabb_max.x());
+			aabb_max.setY((aabb_max.y() > shape_aabb_max.y()) ? aabb_max.y() : shape_aabb_max.y());
+			aabb_max.setZ((aabb_max.z() > shape_aabb_max.z()) ? aabb_max.z() : shape_aabb_max.z());
+		}
+	}
 
-	btTransform body_shape_position;
-	btTransform body_shape_position_recovered;
+	// If there are no shapes then there is no penetration either
+	if (!shapes_found) {
+		return false;
+	}
 
-	// Broad phase support
-	btVector3 minAabb, maxAabb;
+	// Perform broadphase test
+	RecoverPenetrationBroadPhaseCallback recover_broad_result(p_body->get_bt_collision_object(), p_body->get_collision_layer(), p_body->get_collision_mask(), aabb_min, aabb_max);
+	dynamicsWorld->getBroadphase()->aabbTest(aabb_min, aabb_max, recover_broad_result);
 
 	bool penetration = false;
 
-	// For each shape
+	// Perform narrowphase per shape
 	for (int kinIndex = p_body->get_kinematic_utilities()->shapes.size() - 1; 0 <= kinIndex; --kinIndex) {
 
-		recover_broad_result.reset();
-
 		const RigidBodyBullet::KinematicShape &kin_shape(p_body->get_kinematic_utilities()->shapes[kinIndex]);
 		if (!kin_shape.is_active()) {
 			continue;
@@ -1128,15 +1213,11 @@ bool SpaceBullet::recover_from_penetration(RigidBodyBullet *p_body, const btTran
 			continue;
 		}
 
-		body_shape_position = p_body_position * kin_shape.transform;
-		body_shape_position_recovered = body_shape_position;
-		body_shape_position_recovered.getOrigin() += r_delta_recover_movement;
+		btTransform shape_transform = p_body_position * kin_shape.transform;
+		shape_transform.getOrigin() += r_delta_recover_movement;
 
-		kin_shape.shape->getAabb(body_shape_position_recovered, minAabb, maxAabb);
-		dynamicsWorld->getBroadphase()->aabbTest(minAabb, maxAabb, recover_broad_result);
-
-		for (int i = recover_broad_result.result_collision_objects.size() - 1; 0 <= i; --i) {
-			btCollisionObject *otherObject = recover_broad_result.result_collision_objects[i];
+		for (int i = recover_broad_result.results.size() - 1; 0 <= i; --i) {
+			btCollisionObject *otherObject = recover_broad_result.results[i].collision_object;
 			if (p_infinite_inertia && !otherObject->isStaticOrKinematicObject()) {
 				otherObject->activate(); // Force activation of hitten rigid, soft body
 				continue;
@@ -1144,30 +1225,28 @@ bool SpaceBullet::recover_from_penetration(RigidBodyBullet *p_body, const btTran
 				continue;
 
 			if (otherObject->getCollisionShape()->isCompound()) {
+				const btCompoundShape *cs = static_cast<const btCompoundShape *>(otherObject->getCollisionShape());
+				int shape_idx = recover_broad_result.results[i].compound_child_index;
+				ERR_FAIL_COND_V(shape_idx < 0 || shape_idx >= cs->getNumChildShapes(), false);
 
-				// Each convex shape
-				btCompoundShape *cs = static_cast<btCompoundShape *>(otherObject->getCollisionShape());
-				for (int x = cs->getNumChildShapes() - 1; 0 <= x; --x) {
-
-					if (cs->getChildShape(x)->isConvex()) {
-						if (RFP_convex_convex_test(kin_shape.shape, static_cast<const btConvexShape *>(cs->getChildShape(x)), otherObject, x, body_shape_position, otherObject->getWorldTransform() * cs->getChildTransform(x), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
+				if (cs->getChildShape(shape_idx)->isConvex()) {
+					if (RFP_convex_convex_test(kin_shape.shape, static_cast<const btConvexShape *>(cs->getChildShape(shape_idx)), otherObject, shape_idx, shape_transform, otherObject->getWorldTransform() * cs->getChildTransform(shape_idx), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
 
-							penetration = true;
-						}
-					} else {
-						if (RFP_convex_world_test(kin_shape.shape, cs->getChildShape(x), p_body->get_bt_collision_object(), otherObject, kinIndex, x, body_shape_position, otherObject->getWorldTransform() * cs->getChildTransform(x), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
+						penetration = true;
+					}
+				} else {
+					if (RFP_convex_world_test(kin_shape.shape, cs->getChildShape(shape_idx), p_body->get_bt_collision_object(), otherObject, kinIndex, shape_idx, shape_transform, otherObject->getWorldTransform() * cs->getChildTransform(shape_idx), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
 
-							penetration = true;
-						}
+						penetration = true;
 					}
 				}
 			} else if (otherObject->getCollisionShape()->isConvex()) { /// Execute GJK test against object shape
-				if (RFP_convex_convex_test(kin_shape.shape, static_cast<const btConvexShape *>(otherObject->getCollisionShape()), otherObject, 0, body_shape_position, otherObject->getWorldTransform(), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
+				if (RFP_convex_convex_test(kin_shape.shape, static_cast<const btConvexShape *>(otherObject->getCollisionShape()), otherObject, 0, shape_transform, otherObject->getWorldTransform(), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
 
 					penetration = true;
 				}
 			} else {
-				if (RFP_convex_world_test(kin_shape.shape, otherObject->getCollisionShape(), p_body->get_bt_collision_object(), otherObject, kinIndex, 0, body_shape_position, otherObject->getWorldTransform(), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
+				if (RFP_convex_world_test(kin_shape.shape, otherObject->getCollisionShape(), p_body->get_bt_collision_object(), otherObject, kinIndex, 0, shape_transform, otherObject->getWorldTransform(), p_recover_movement_scale, r_delta_recover_movement, r_recover_result)) {
 
 					penetration = true;
 				}
@@ -1183,7 +1262,6 @@ bool SpaceBullet::RFP_convex_convex_test(const btConvexShape *p_shapeA, const bt
 	// Initialize GJK input
 	btGjkPairDetector::ClosestPointInput gjk_input;
 	gjk_input.m_transformA = p_transformA;
-	gjk_input.m_transformA.getOrigin() += r_delta_recover_movement;
 	gjk_input.m_transformB = p_transformB;
 
 	// Perform GJK test
@@ -1214,7 +1292,6 @@ bool SpaceBullet::RFP_convex_world_test(const btConvexShape *p_shapeA, const btC
 	/// Contact test
 
 	btTransform tA(p_transformA);
-	tA.getOrigin() += r_delta_recover_movement;
 
 	btCollisionObjectWrapper obA(NULL, p_shapeA, p_objectA, tA, -1, p_shapeId_A);
 	btCollisionObjectWrapper obB(NULL, p_shapeB, p_objectB, p_transformB, -1, p_shapeId_B);
@@ -1246,39 +1323,81 @@ bool SpaceBullet::RFP_convex_world_test(const btConvexShape *p_shapeA, const btC
 	return false;
 }
 
-void SpaceBullet::convert_to_separation_result(PhysicsServer::SeparationResult *r_result, const SpaceBullet::RecoverResult &p_recover_result, int p_shape_id, const btCollisionObject *p_other_object) const {
+int SpaceBullet::add_separation_result(PhysicsServer::SeparationResult *r_result, const SpaceBullet::RecoverResult &p_recover_result, int p_shape_id, const btCollisionObject *p_other_object) const {
+
+	// optimize results (ignore non-colliding)
+	if (p_recover_result.penetration_distance < 0.0) {
+		const btRigidBody *btRigid = static_cast<const btRigidBody *>(p_other_object);
+		CollisionObjectBullet *collisionObject = static_cast<CollisionObjectBullet *>(p_other_object->getUserPointer());
 
-	const btRigidBody *btRigid = static_cast<const btRigidBody *>(p_other_object);
-	CollisionObjectBullet *collisionObject = static_cast<CollisionObjectBullet *>(p_other_object->getUserPointer());
+		r_result->collision_depth = p_recover_result.penetration_distance;
+		B_TO_G(p_recover_result.pointWorld, r_result->collision_point);
+		B_TO_G(p_recover_result.normal, r_result->collision_normal);
+		B_TO_G(btRigid->getVelocityInLocalPoint(p_recover_result.pointWorld - btRigid->getWorldTransform().getOrigin()), r_result->collider_velocity);
+		r_result->collision_local_shape = p_shape_id;
+		r_result->collider_id = collisionObject->get_instance_id();
+		r_result->collider = collisionObject->get_self();
+		r_result->collider_shape = p_recover_result.other_compound_shape_index;
 
-	r_result->collision_depth = p_recover_result.penetration_distance;
-	B_TO_G(p_recover_result.pointWorld, r_result->collision_point);
-	B_TO_G(p_recover_result.normal, r_result->collision_normal);
-	B_TO_G(btRigid->getVelocityInLocalPoint(p_recover_result.pointWorld - btRigid->getWorldTransform().getOrigin()), r_result->collider_velocity);
-	r_result->collision_local_shape = p_shape_id;
-	r_result->collider_id = collisionObject->get_instance_id();
-	r_result->collider = collisionObject->get_self();
-	r_result->collider_shape = p_recover_result.other_compound_shape_index;
+		return 1;
+	} else {
+		return 0;
+	}
 }
 
 int SpaceBullet::recover_from_penetration_ray(RigidBodyBullet *p_body, const btTransform &p_body_position, btScalar p_recover_movement_scale, bool p_infinite_inertia, int p_result_max, btVector3 &r_delta_recover_movement, PhysicsServer::SeparationResult *r_results) {
 
-	RecoverPenetrationBroadPhaseCallback recover_broad_result(p_body->get_bt_collision_object(), p_body->get_collision_layer(), p_body->get_collision_mask());
+	// Calculate the cummulative AABB of all shapes of the kinematic body
+	btVector3 aabb_min, aabb_max;
+	bool shapes_found = false;
+
+	for (int kinIndex = p_body->get_kinematic_utilities()->shapes.size() - 1; 0 <= kinIndex; --kinIndex) {
+
+		const RigidBodyBullet::KinematicShape &kin_shape(p_body->get_kinematic_utilities()->shapes[kinIndex]);
+		if (!kin_shape.is_active()) {
+			continue;
+		}
+
+		if (kin_shape.shape->getShapeType() != CUSTOM_CONVEX_SHAPE_TYPE) {
+			continue;
+		}
+
+		btTransform shape_transform = p_body_position * kin_shape.transform;
+		shape_transform.getOrigin() += r_delta_recover_movement;
 
-	btTransform body_shape_position;
-	btTransform body_shape_position_recovered;
+		btVector3 shape_aabb_min, shape_aabb_max;
+		kin_shape.shape->getAabb(shape_transform, shape_aabb_min, shape_aabb_max);
 
-	// Broad phase support
-	btVector3 minAabb, maxAabb;
+		if (!shapes_found) {
+			aabb_min = shape_aabb_min;
+			aabb_max = shape_aabb_max;
+			shapes_found = true;
+		} else {
+			aabb_min.setX((aabb_min.x() < shape_aabb_min.x()) ? aabb_min.x() : shape_aabb_min.x());
+			aabb_min.setY((aabb_min.y() < shape_aabb_min.y()) ? aabb_min.y() : shape_aabb_min.y());
+			aabb_min.setZ((aabb_min.z() < shape_aabb_min.z()) ? aabb_min.z() : shape_aabb_min.z());
 
-	int ray_index = 0;
+			aabb_max.setX((aabb_max.x() > shape_aabb_max.x()) ? aabb_max.x() : shape_aabb_max.x());
+			aabb_max.setY((aabb_max.y() > shape_aabb_max.y()) ? aabb_max.y() : shape_aabb_max.y());
+			aabb_max.setZ((aabb_max.z() > shape_aabb_max.z()) ? aabb_max.z() : shape_aabb_max.z());
+		}
+	}
 
-	// For each shape
-	for (int kinIndex = p_body->get_kinematic_utilities()->shapes.size() - 1; 0 <= kinIndex; --kinIndex) {
+	// If there are no shapes then there is no penetration either
+	if (!shapes_found) {
+		return 0;
+	}
+
+	// Perform broadphase test
+	RecoverPenetrationBroadPhaseCallback recover_broad_result(p_body->get_bt_collision_object(), p_body->get_collision_layer(), p_body->get_collision_mask(), aabb_min, aabb_max);
+	dynamicsWorld->getBroadphase()->aabbTest(aabb_min, aabb_max, recover_broad_result);
 
-		recover_broad_result.reset();
+	int ray_count = 0;
+
+	// Perform narrowphase per shape
+	for (int kinIndex = p_body->get_kinematic_utilities()->shapes.size() - 1; 0 <= kinIndex; --kinIndex) {
 
-		if (ray_index >= p_result_max) {
+		if (ray_count >= p_result_max) {
 			break;
 		}
 
@@ -1291,15 +1410,11 @@ int SpaceBullet::recover_from_penetration_ray(RigidBodyBullet *p_body, const btT
 			continue;
 		}
 
-		body_shape_position = p_body_position * kin_shape.transform;
-		body_shape_position_recovered = body_shape_position;
-		body_shape_position_recovered.getOrigin() += r_delta_recover_movement;
+		btTransform shape_transform = p_body_position * kin_shape.transform;
+		shape_transform.getOrigin() += r_delta_recover_movement;
 
-		kin_shape.shape->getAabb(body_shape_position_recovered, minAabb, maxAabb);
-		dynamicsWorld->getBroadphase()->aabbTest(minAabb, maxAabb, recover_broad_result);
-
-		for (int i = recover_broad_result.result_collision_objects.size() - 1; 0 <= i; --i) {
-			btCollisionObject *otherObject = recover_broad_result.result_collision_objects[i];
+		for (int i = recover_broad_result.results.size() - 1; 0 <= i; --i) {
+			btCollisionObject *otherObject = recover_broad_result.results[i].collision_object;
 			if (p_infinite_inertia && !otherObject->isStaticOrKinematicObject()) {
 				otherObject->activate(); // Force activation of hitten rigid, soft body
 				continue;
@@ -1307,29 +1422,25 @@ int SpaceBullet::recover_from_penetration_ray(RigidBodyBullet *p_body, const btT
 				continue;
 
 			if (otherObject->getCollisionShape()->isCompound()) {
+				const btCompoundShape *cs = static_cast<const btCompoundShape *>(otherObject->getCollisionShape());
+				int shape_idx = recover_broad_result.results[i].compound_child_index;
+				ERR_FAIL_COND_V(shape_idx < 0 || shape_idx >= cs->getNumChildShapes(), false);
 
-				// Each convex shape
-				btCompoundShape *cs = static_cast<btCompoundShape *>(otherObject->getCollisionShape());
-				for (int x = cs->getNumChildShapes() - 1; 0 <= x; --x) {
-
-					RecoverResult recover_result;
-					if (RFP_convex_world_test(kin_shape.shape, cs->getChildShape(x), p_body->get_bt_collision_object(), otherObject, kinIndex, x, body_shape_position, otherObject->getWorldTransform() * cs->getChildTransform(x), p_recover_movement_scale, r_delta_recover_movement, &recover_result)) {
+				RecoverResult recover_result;
+				if (RFP_convex_world_test(kin_shape.shape, cs->getChildShape(shape_idx), p_body->get_bt_collision_object(), otherObject, kinIndex, shape_idx, shape_transform, otherObject->getWorldTransform() * cs->getChildTransform(shape_idx), p_recover_movement_scale, r_delta_recover_movement, &recover_result)) {
 
-						convert_to_separation_result(&r_results[ray_index], recover_result, kinIndex, otherObject);
-					}
+					ray_count = add_separation_result(&r_results[ray_count], recover_result, kinIndex, otherObject);
 				}
 			} else {
 
 				RecoverResult recover_result;
-				if (RFP_convex_world_test(kin_shape.shape, otherObject->getCollisionShape(), p_body->get_bt_collision_object(), otherObject, kinIndex, 0, body_shape_position, otherObject->getWorldTransform(), p_recover_movement_scale, r_delta_recover_movement, &recover_result)) {
+				if (RFP_convex_world_test(kin_shape.shape, otherObject->getCollisionShape(), p_body->get_bt_collision_object(), otherObject, kinIndex, 0, shape_transform, otherObject->getWorldTransform(), p_recover_movement_scale, r_delta_recover_movement, &recover_result)) {
 
-					convert_to_separation_result(&r_results[ray_index], recover_result, kinIndex, otherObject);
+					ray_count = add_separation_result(&r_results[ray_count], recover_result, kinIndex, otherObject);
 				}
 			}
 		}
-
-		++ray_index;
 	}
 
-	return ray_index;
+	return ray_count;
 }
diff --git a/modules/bullet/space_bullet.h b/modules/bullet/space_bullet.h
index 7bf6a216b5..6b3d65edf6 100644
--- a/modules/bullet/space_bullet.h
+++ b/modules/bullet/space_bullet.h
@@ -212,7 +212,7 @@ private:
 	/// Using this we leave Bullet to select the best algorithm, For example GJK in case we have Convex Convex, or a Bullet accelerated algorithm
 	bool RFP_convex_world_test(const btConvexShape *p_shapeA, const btCollisionShape *p_shapeB, btCollisionObject *p_objectA, btCollisionObject *p_objectB, int p_shapeId_A, int p_shapeId_B, const btTransform &p_transformA, const btTransform &p_transformB, btScalar p_recover_movement_scale, btVector3 &r_delta_recover_movement, RecoverResult *r_recover_result = NULL);
 
-	void convert_to_separation_result(PhysicsServer::SeparationResult *r_result, const SpaceBullet::RecoverResult &p_recover_result, int p_shape_id, const btCollisionObject *p_other_object) const;
+	int add_separation_result(PhysicsServer::SeparationResult *r_results, const SpaceBullet::RecoverResult &p_recover_result, int p_shape_id, const btCollisionObject *p_other_object) const;
 	int recover_from_penetration_ray(RigidBodyBullet *p_body, const btTransform &p_body_position, btScalar p_recover_movement_scale, bool p_infinite_inertia, int p_result_max, btVector3 &r_delta_recover_movement, PhysicsServer::SeparationResult *r_results);
 };
 #endif
diff --git a/modules/csg/csg.cpp b/modules/csg/csg.cpp
index 0eb539b182..7e1cc937cd 100644
--- a/modules/csg/csg.cpp
+++ b/modules/csg/csg.cpp
@@ -242,7 +242,7 @@ void CSGBrushOperation::BuildPoly::_clip_segment(const CSGBrush *p_brush, int p_
 	//check if edge and poly share a vertex, of so, assign it to segment_idx
 	for (int i = 0; i < points.size(); i++) {
 		for (int j = 0; j < 2; j++) {
-			if (segment[j].distance_to(points[i].point) < CMP_EPSILON) {
+			if (Math::is_zero_approx(segment[j].distance_to(points[i].point))) {
 				segment_idx[j] = i;
 				inserted_points.push_back(i);
 				break;
@@ -310,7 +310,7 @@ void CSGBrushOperation::BuildPoly::_clip_segment(const CSGBrush *p_brush, int p_
 			Vector2 edgeseg[2] = { points[edges[i].points[0]].point, points[edges[i].points[1]].point };
 			Vector2 closest = Geometry::get_closest_point_to_segment_2d(segment[j], edgeseg);
 
-			if (closest.distance_to(segment[j]) < CMP_EPSILON) {
+			if (Math::is_zero_approx(closest.distance_to(segment[j]))) {
 				//point rest of this edge
 				res = closest;
 				found = true;
@@ -439,7 +439,7 @@ void CSGBrushOperation::BuildPoly::clip(const CSGBrush *p_brush, int p_face, Mes
 
 	//transform A points to 2D
 
-	if (segment[0].distance_to(segment[1]) < CMP_EPSILON)
+	if (Math::is_zero_approx(segment[0].distance_to(segment[1])))
 		return; //too small
 
 	_clip_segment(p_brush, p_face, segment, mesh_merge, p_for_B);
@@ -461,10 +461,10 @@ void CSGBrushOperation::_collision_callback(const CSGBrush *A, int p_face_a, Map
 
 	{
 		//check if either is a degenerate
-		if (va[0].distance_to(va[1]) < CMP_EPSILON || va[0].distance_to(va[2]) < CMP_EPSILON || va[1].distance_to(va[2]) < CMP_EPSILON)
+		if (Math::is_zero_approx(va[0].distance_to(va[1])) || Math::is_zero_approx(va[0].distance_to(va[2])) || Math::is_zero_approx(va[1].distance_to(va[2])))
 			return;
 
-		if (vb[0].distance_to(vb[1]) < CMP_EPSILON || vb[0].distance_to(vb[2]) < CMP_EPSILON || vb[1].distance_to(vb[2]) < CMP_EPSILON)
+		if (Math::is_zero_approx(vb[0].distance_to(vb[1])) || Math::is_zero_approx(vb[0].distance_to(vb[2])) || Math::is_zero_approx(vb[1].distance_to(vb[2])))
 			return;
 	}
 
diff --git a/modules/csg/csg_shape.cpp b/modules/csg/csg_shape.cpp
index f274fff3f3..e70773d914 100644
--- a/modules/csg/csg_shape.cpp
+++ b/modules/csg/csg_shape.cpp
@@ -724,6 +724,7 @@ CSGBrush *CSGMesh::_build_brush() {
 	PoolVector<bool> smooth;
 	PoolVector<Ref<Material> > materials;
 	PoolVector<Vector2> uvs;
+	Ref<Material> material = get_material();
 
 	for (int i = 0; i < mesh->get_surface_count(); i++) {
 
@@ -760,7 +761,12 @@ CSGBrush *CSGMesh::_build_brush() {
 			uvr_used = true;
 		}
 
-		Ref<Material> mat = mesh->surface_get_material(i);
+		Ref<Material> mat;
+		if (material.is_valid()) {
+			mat = material;
+		} else {
+			mat = mesh->surface_get_material(i);
+		}
 
 		PoolVector<int> aindices = arrays[Mesh::ARRAY_INDEX];
 		if (aindices.size()) {
@@ -806,8 +812,8 @@ CSGBrush *CSGMesh::_build_brush() {
 				uvw[as + j + 1] = uv[1];
 				uvw[as + j + 2] = uv[2];
 
-				sw[j / 3] = !flat;
-				mw[j / 3] = mat;
+				sw[(as + j) / 3] = !flat;
+				mw[(as + j) / 3] = mat;
 			}
 		} else {
 			int as = vertices.size();
@@ -849,8 +855,8 @@ CSGBrush *CSGMesh::_build_brush() {
 				uvw[as + j + 1] = uv[1];
 				uvw[as + j + 2] = uv[2];
 
-				sw[j / 3] = !flat;
-				mw[j / 3] = mat;
+				sw[(as + j) / 3] = !flat;
+				mw[(as + j) / 3] = mat;
 			}
 		}
 	}
@@ -866,6 +872,18 @@ void CSGMesh::_mesh_changed() {
 	update_gizmo();
 }
 
+void CSGMesh::set_material(const Ref<Material> &p_material) {
+	if (material == p_material)
+		return;
+	material = p_material;
+	_make_dirty();
+}
+
+Ref<Material> CSGMesh::get_material() const {
+
+	return material;
+}
+
 void CSGMesh::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &CSGMesh::set_mesh);
@@ -873,7 +891,11 @@ void CSGMesh::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("_mesh_changed"), &CSGMesh::_mesh_changed);
 
+	ClassDB::bind_method(D_METHOD("set_material", "material"), &CSGMesh::set_material);
+	ClassDB::bind_method(D_METHOD("get_material"), &CSGMesh::get_material);
+
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "material", PROPERTY_HINT_RESOURCE_TYPE, "SpatialMaterial,ShaderMaterial"), "set_material", "get_material");
 }
 
 void CSGMesh::set_mesh(const Ref<Mesh> &p_mesh) {
diff --git a/modules/csg/csg_shape.h b/modules/csg/csg_shape.h
index 1622fb3a15..a5b2238e6b 100644
--- a/modules/csg/csg_shape.h
+++ b/modules/csg/csg_shape.h
@@ -38,8 +38,8 @@
 #include "scene/resources/concave_polygon_shape.h"
 #include "thirdparty/misc/mikktspace.h"
 
-class CSGShape : public VisualInstance {
-	GDCLASS(CSGShape, VisualInstance);
+class CSGShape : public GeometryInstance {
+	GDCLASS(CSGShape, GeometryInstance);
 
 public:
 	enum Operation {
@@ -187,6 +187,7 @@ class CSGMesh : public CSGPrimitive {
 	virtual CSGBrush *_build_brush();
 
 	Ref<Mesh> mesh;
+	Ref<Material> material;
 
 	void _mesh_changed();
 
@@ -196,6 +197,9 @@ protected:
 public:
 	void set_mesh(const Ref<Mesh> &p_mesh);
 	Ref<Mesh> get_mesh();
+
+	void set_material(const Ref<Material> &p_material);
+	Ref<Material> get_material() const;
 };
 
 class CSGSphere : public CSGPrimitive {
diff --git a/modules/csg/doc_classes/CSGBox.xml b/modules/csg/doc_classes/CSGBox.xml
index 5ec7b5089d..e508468415 100644
--- a/modules/csg/doc_classes/CSGBox.xml
+++ b/modules/csg/doc_classes/CSGBox.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGBox" inherits="CSGPrimitive" category="Core" version="3.1">
+<class name="CSGBox" inherits="CSGPrimitive" category="Core" version="3.2">
 	<brief_description>
 		A CSG Box shape.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/csg/doc_classes/CSGCombiner.xml b/modules/csg/doc_classes/CSGCombiner.xml
index 69c5df5840..51428b25f8 100644
--- a/modules/csg/doc_classes/CSGCombiner.xml
+++ b/modules/csg/doc_classes/CSGCombiner.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGCombiner" inherits="CSGShape" category="Core" version="3.1">
+<class name="CSGCombiner" inherits="CSGShape" category="Core" version="3.2">
 	<brief_description>
 		A CSG node that allows you to combine other CSG modifiers.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/csg/doc_classes/CSGCylinder.xml b/modules/csg/doc_classes/CSGCylinder.xml
index 92b170ed1f..24c3f8ba2e 100644
--- a/modules/csg/doc_classes/CSGCylinder.xml
+++ b/modules/csg/doc_classes/CSGCylinder.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGCylinder" inherits="CSGPrimitive" category="Core" version="3.1">
+<class name="CSGCylinder" inherits="CSGPrimitive" category="Core" version="3.2">
 	<brief_description>
 		A CSG Cylinder shape.
 	</brief_description>
@@ -8,13 +8,11 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="cone" type="bool" setter="set_cone" getter="is_cone">
-			If true a cone is created, the [member radius] will only apply to one side.
+			If [code]true[/code] a cone is created, the [member radius] will only apply to one side.
 		</member>
 		<member name="height" type="float" setter="set_height" getter="get_height">
 			The height of the cylinder.
@@ -29,7 +27,7 @@
 			The number of sides of the cylinder, the higher this number the more detail there will be in the cylinder.
 		</member>
 		<member name="smooth_faces" type="bool" setter="set_smooth_faces" getter="get_smooth_faces">
-			If true the normals of the cylinder are set to give a smooth effect making the cylinder seem rounded. When false the cylinder will have a flat shaded look.
+			If [code]true[/code] the normals of the cylinder are set to give a smooth effect making the cylinder seem rounded. If [code]false[/code] the cylinder will have a flat shaded look.
 		</member>
 	</members>
 	<constants>
diff --git a/modules/csg/doc_classes/CSGMesh.xml b/modules/csg/doc_classes/CSGMesh.xml
index 58e2bc1c4b..afe0bc262d 100644
--- a/modules/csg/doc_classes/CSGMesh.xml
+++ b/modules/csg/doc_classes/CSGMesh.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGMesh" inherits="CSGPrimitive" category="Core" version="3.1">
+<class name="CSGMesh" inherits="CSGPrimitive" category="Core" version="3.2">
 	<brief_description>
 		A CSG Mesh shape that uses a mesh resource.
 	</brief_description>
@@ -8,11 +8,11 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
+		<member name="material" type="Material" setter="set_material" getter="get_material">
+		</member>
 		<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
 			The mesh resource to use as a CSG shape.
 		</member>
diff --git a/modules/csg/doc_classes/CSGPolygon.xml b/modules/csg/doc_classes/CSGPolygon.xml
index a33e5557cb..2c5d298222 100644
--- a/modules/csg/doc_classes/CSGPolygon.xml
+++ b/modules/csg/doc_classes/CSGPolygon.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGPolygon" inherits="CSGPrimitive" category="Core" version="3.1">
+<class name="CSGPolygon" inherits="CSGPrimitive" category="Core" version="3.2">
 	<brief_description>
 		Extrudes a 2D polygon shape to create a 3D mesh.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -23,16 +21,16 @@
 			Extrusion mode.
 		</member>
 		<member name="path_continuous_u" type="bool" setter="set_path_continuous_u" getter="is_path_continuous_u">
-			If true the u component of our uv will continuously increase in unison with the distance traveled along our path when [member mode] is [constant MODE_PATH].
+			If [code]true[/code] the u component of our uv will continuously increase in unison with the distance traveled along our path when [member mode] is [constant MODE_PATH].
 		</member>
 		<member name="path_interval" type="float" setter="set_path_interval" getter="get_path_interval">
 			Interval at which a new extrusion slice is added along the path when [member mode] is [constant MODE_PATH].
 		</member>
 		<member name="path_joined" type="bool" setter="set_path_joined" getter="is_path_joined">
-			If true the start and end of our path are joined together ensuring there is no seam when [member mode] is [constant MODE_PATH].
+			If [code]true[/code] the start and end of our path are joined together ensuring there is no seam when [member mode] is [constant MODE_PATH].
 		</member>
 		<member name="path_local" type="bool" setter="set_path_local" getter="is_path_local">
-			If false we extrude centered on our path, if true we extrude in relation to the position of our CSGPolygon when [member mode] is [constant MODE_PATH].
+			If [code]false[/code] we extrude centered on our path, if [code]true[/code] we extrude in relation to the position of our CSGPolygon when [member mode] is [constant MODE_PATH].
 		</member>
 		<member name="path_node" type="NodePath" setter="set_path_node" getter="get_path_node">
 			The [Shape] object containing the path along which we extrude when [member mode] is [constant MODE_PATH].
diff --git a/modules/csg/doc_classes/CSGPrimitive.xml b/modules/csg/doc_classes/CSGPrimitive.xml
index 2591bab7e3..869e4006fe 100644
--- a/modules/csg/doc_classes/CSGPrimitive.xml
+++ b/modules/csg/doc_classes/CSGPrimitive.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGPrimitive" inherits="CSGShape" category="Core" version="3.1">
+<class name="CSGPrimitive" inherits="CSGShape" category="Core" version="3.2">
 	<brief_description>
 		Base class for CSG primitives.
 	</brief_description>
@@ -7,8 +7,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/csg/doc_classes/CSGShape.xml b/modules/csg/doc_classes/CSGShape.xml
index d304d0179f..7fa7c78534 100644
--- a/modules/csg/doc_classes/CSGShape.xml
+++ b/modules/csg/doc_classes/CSGShape.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGShape" inherits="VisualInstance" category="Core" version="3.1">
+<class name="CSGShape" inherits="GeometryInstance" category="Core" version="3.2">
 	<brief_description>
 		The CSG base class.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_collision_layer_bit" qualifiers="const">
 			<return type="bool">
@@ -39,7 +37,7 @@
 			<return type="bool">
 			</return>
 			<description>
-				Returns true if this is a root shape and is thus the object that is rendered.
+				Returns [code]true[/code] if this is a root shape and is thus the object that is rendered.
 			</description>
 		</method>
 		<method name="set_collision_layer_bit">
diff --git a/modules/csg/doc_classes/CSGSphere.xml b/modules/csg/doc_classes/CSGSphere.xml
index a0069879cb..2a12cf84db 100644
--- a/modules/csg/doc_classes/CSGSphere.xml
+++ b/modules/csg/doc_classes/CSGSphere.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGSphere" inherits="CSGPrimitive" category="Core" version="3.1">
+<class name="CSGSphere" inherits="CSGPrimitive" category="Core" version="3.2">
 	<brief_description>
 		A CSG Sphere shape.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -26,7 +24,7 @@
 			Number of horizontal slices for the sphere.
 		</member>
 		<member name="smooth_faces" type="bool" setter="set_smooth_faces" getter="get_smooth_faces">
-			If true the normals of the sphere are set to give a smooth effect making the sphere seem rounded. When false the sphere will have a flat shaded look.
+			If [code]true[/code] the normals of the sphere are set to give a smooth effect making the sphere seem rounded. If [code]false[/code] the sphere will have a flat shaded look.
 		</member>
 	</members>
 	<constants>
diff --git a/modules/csg/doc_classes/CSGTorus.xml b/modules/csg/doc_classes/CSGTorus.xml
index 187d71a2fa..0d4437d87f 100644
--- a/modules/csg/doc_classes/CSGTorus.xml
+++ b/modules/csg/doc_classes/CSGTorus.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSGTorus" inherits="CSGPrimitive" category="Core" version="3.1">
+<class name="CSGTorus" inherits="CSGPrimitive" category="Core" version="3.2">
 	<brief_description>
 		A CSG Torus shape.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -29,7 +27,7 @@
 			The number of slices the torus is constructed of.
 		</member>
 		<member name="smooth_faces" type="bool" setter="set_smooth_faces" getter="get_smooth_faces">
-			If true the normals of the torus are set to give a smooth effect making the torus seem rounded. When false the torus will have a flat shaded look.
+			If [code]true[/code] the normals of the torus are set to give a smooth effect making the torus seem rounded. If [code]false[/code] the torus will have a flat shaded look.
 		</member>
 	</members>
 	<constants>
diff --git a/modules/cvtt/SCsub b/modules/cvtt/SCsub
index fcc69d8371..142af0c800 100644
--- a/modules/cvtt/SCsub
+++ b/modules/cvtt/SCsub
@@ -14,7 +14,7 @@ if env['builtin_squish']:
 
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_cvtt.Append(CPPPATH=[thirdparty_dir])
+    env_cvtt.Prepend(CPPPATH=[thirdparty_dir])
 
     env_thirdparty = env_cvtt.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/dds/texture_loader_dds.cpp b/modules/dds/texture_loader_dds.cpp
index 0a94690989..059c06c37c 100644
--- a/modules/dds/texture_loader_dds.cpp
+++ b/modules/dds/texture_loader_dds.cpp
@@ -432,7 +432,8 @@ RES ResourceFormatDDS::load(const String &p_path, const String &p_original_path,
 
 			} break;
 
-			default: {}
+			default: {
+			}
 		}
 
 		wb = PoolVector<uint8_t>::Write();
diff --git a/modules/enet/SCsub b/modules/enet/SCsub
index a57a4b29ea..78d8d43414 100644
--- a/modules/enet/SCsub
+++ b/modules/enet/SCsub
@@ -21,7 +21,7 @@ if env['builtin_enet']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_enet.Append(CPPPATH=[thirdparty_dir])
+    env_enet.Prepend(CPPPATH=[thirdparty_dir])
     env_enet.Append(CPPFLAGS=["-DGODOT_ENET"])
 
     env_thirdparty = env_enet.Clone()
diff --git a/modules/enet/doc_classes/NetworkedMultiplayerENet.xml b/modules/enet/doc_classes/NetworkedMultiplayerENet.xml
index c9a7d96ae7..894c17c684 100644
--- a/modules/enet/doc_classes/NetworkedMultiplayerENet.xml
+++ b/modules/enet/doc_classes/NetworkedMultiplayerENet.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NetworkedMultiplayerENet" inherits="NetworkedMultiplayerPeer" category="Core" version="3.1">
+<class name="NetworkedMultiplayerENet" inherits="NetworkedMultiplayerPeer" category="Core" version="3.2">
 	<brief_description>
 		PacketPeer implementation using the ENet library.
 	</brief_description>
@@ -10,8 +10,6 @@
 		<link>https://docs.godotengine.org/en/latest/tutorials/networking/high_level_multiplayer.html</link>
 		<link>http://enet.bespin.org/usergroup0.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="close_connection">
 			<return type="void">
@@ -62,7 +60,7 @@
 			<argument index="1" name="now" type="bool" default="false">
 			</argument>
 			<description>
-				Disconnect the given peer. If "now" is set to true, the connection will be closed immediately without flushing queued messages.
+				Disconnect the given peer. If "now" is set to [code]true[/code], the connection will be closed immediately without flushing queued messages.
 			</description>
 		</method>
 		<method name="get_last_packet_channel" qualifiers="const">
diff --git a/modules/enet/networked_multiplayer_enet.cpp b/modules/enet/networked_multiplayer_enet.cpp
index 000917507a..492b365128 100644
--- a/modules/enet/networked_multiplayer_enet.cpp
+++ b/modules/enet/networked_multiplayer_enet.cpp
@@ -346,11 +346,10 @@ void NetworkedMultiplayerENet::poll() {
 
 					uint32_t *id = (uint32_t *)event.peer->data;
 
-					ERR_CONTINUE(event.packet->dataLength < 12)
+					ERR_CONTINUE(event.packet->dataLength < 8)
 
 					uint32_t source = decode_uint32(&event.packet->data[0]);
 					int target = decode_uint32(&event.packet->data[4]);
-					uint32_t flags = decode_uint32(&event.packet->data[8]);
 
 					packet.from = source;
 					packet.channel = event.channelID;
@@ -371,7 +370,7 @@ void NetworkedMultiplayerENet::poll() {
 								if (uint32_t(E->key()) == source) // Do not resend to self
 									continue;
 
-								ENetPacket *packet2 = enet_packet_create(packet.packet->data, packet.packet->dataLength, flags);
+								ENetPacket *packet2 = enet_packet_create(packet.packet->data, packet.packet->dataLength, packet.packet->flags);
 
 								enet_peer_send(E->get(), event.channelID, packet2);
 							}
@@ -385,7 +384,7 @@ void NetworkedMultiplayerENet::poll() {
 								if (uint32_t(E->key()) == source || E->key() == -target) // Do not resend to self, also do not send to excluded
 									continue;
 
-								ENetPacket *packet2 = enet_packet_create(packet.packet->data, packet.packet->dataLength, flags);
+								ENetPacket *packet2 = enet_packet_create(packet.packet->data, packet.packet->dataLength, packet.packet->flags);
 
 								enet_peer_send(E->get(), event.channelID, packet2);
 							}
@@ -503,8 +502,8 @@ Error NetworkedMultiplayerENet::get_packet(const uint8_t **r_buffer, int &r_buff
 	current_packet = incoming_packets.front()->get();
 	incoming_packets.pop_front();
 
-	*r_buffer = (const uint8_t *)(&current_packet.packet->data[12]);
-	r_buffer_size = current_packet.packet->dataLength - 12;
+	*r_buffer = (const uint8_t *)(&current_packet.packet->data[8]);
+	r_buffer_size = current_packet.packet->dataLength - 8;
 
 	return OK;
 }
@@ -549,11 +548,10 @@ Error NetworkedMultiplayerENet::put_packet(const uint8_t *p_buffer, int p_buffer
 		}
 	}
 
-	ENetPacket *packet = enet_packet_create(NULL, p_buffer_size + 12, packet_flags);
+	ENetPacket *packet = enet_packet_create(NULL, p_buffer_size + 8, packet_flags);
 	encode_uint32(unique_id, &packet->data[0]); // Source ID
 	encode_uint32(target_peer, &packet->data[4]); // Dest ID
-	encode_uint32(packet_flags, &packet->data[8]); // Dest ID
-	copymem(&packet->data[12], p_buffer, p_buffer_size);
+	copymem(&packet->data[8], p_buffer, p_buffer_size);
 
 	if (server) {
 
@@ -690,7 +688,9 @@ size_t NetworkedMultiplayerENet::enet_compress(void *context, const ENetBuffer *
 		case COMPRESS_ZSTD: {
 			mode = Compression::MODE_ZSTD;
 		} break;
-		default: { ERR_FAIL_V(0); }
+		default: {
+			ERR_FAIL_V(0);
+		}
 	}
 
 	int req_size = Compression::get_max_compressed_buffer_size(ofs, mode);
@@ -727,7 +727,8 @@ size_t NetworkedMultiplayerENet::enet_decompress(void *context, const enet_uint8
 
 			ret = Compression::decompress(outData, outLimit, inData, inLimit, Compression::MODE_ZSTD);
 		} break;
-		default: {}
+		default: {
+		}
 	}
 	if (ret < 0) {
 		return 0;
diff --git a/modules/etc/SCsub b/modules/etc/SCsub
index 6e963ef766..532b97b006 100644
--- a/modules/etc/SCsub
+++ b/modules/etc/SCsub
@@ -27,11 +27,11 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_etc.Append(CPPPATH=[thirdparty_dir])
+env_etc.Prepend(CPPPATH=[thirdparty_dir])
 
 # upstream uses c++11
 if not env.msvc:
-	env_etc.Append(CCFLAGS="-std=c++11")
+	env_etc.Append(CXXFLAGS="-std=c++11")
 
 env_thirdparty = env_etc.Clone()
 env_thirdparty.disable_warnings()
diff --git a/modules/etc/image_etc.cpp b/modules/etc/image_etc.cpp
index 5410d367db..6f54436bf9 100644
--- a/modules/etc/image_etc.cpp
+++ b/modules/etc/image_etc.cpp
@@ -115,7 +115,8 @@ static void _compress_etc(Image *p_img, float p_lossy_quality, bool force_etc1_f
 			case Image::FORMAT_RGBA5551: {
 				detected_channels = Image::DETECTED_RGBA;
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 
diff --git a/modules/freetype/SCsub b/modules/freetype/SCsub
index 3e2068b8db..0ea581220e 100644
--- a/modules/freetype/SCsub
+++ b/modules/freetype/SCsub
@@ -12,7 +12,6 @@ if env['builtin_freetype']:
     thirdparty_dir = "#thirdparty/freetype/"
     thirdparty_sources = [
         "src/autofit/autofit.c",
-        "src/base/ftapi.c",
         "src/base/ftbase.c",
         "src/base/ftbbox.c",
         "src/base/ftbdf.c",
@@ -62,24 +61,27 @@ if env['builtin_freetype']:
         # Globally too, as freetype is used in scene (see bottom)
         env.Append(CCFLAGS=['/FI', '"modules/freetype/uwpdef.h"'])
 
-    sfnt = thirdparty_dir + 'src/sfnt/sfnt.c'
-    if env['platform'] == 'javascript':
-        # Forcibly undefine this macro so SIMD is not used in this file,
-        # since currently unsupported in WASM
-        sfnt = env_freetype.Object(sfnt, CPPFLAGS=['-U__OPTIMIZE__'])
-    thirdparty_sources += [sfnt]
-
-    env_freetype.Append(CPPPATH=[thirdparty_dir + "/include"])
+    env_freetype.Prepend(CPPPATH=[thirdparty_dir + "/include"])
     # Also needed in main env for scene/
-    env.Append(CPPPATH=[thirdparty_dir + "/include"])
+    env.Prepend(CPPPATH=[thirdparty_dir + "/include"])
 
-    env_freetype.Append(CCFLAGS=['-DFT2_BUILD_LIBRARY', '-DFT_CONFIG_OPTION_USE_PNG'])
+    env_freetype.Append(CPPFLAGS=['-DFT2_BUILD_LIBRARY', '-DFT_CONFIG_OPTION_USE_PNG'])
     if (env['target'] != 'release'):
-        env_freetype.Append(CCFLAGS=['-DZLIB_DEBUG'])
+        env_freetype.Append(CPPFLAGS=['-DZLIB_DEBUG'])
 
     # Also requires libpng headers
     if env['builtin_libpng']:
-        env_freetype.Append(CPPPATH=["#thirdparty/libpng"])
+        env_freetype.Prepend(CPPPATH=["#thirdparty/libpng"])
+
+    sfnt = thirdparty_dir + 'src/sfnt/sfnt.c'
+    # Must be done after all CPPFLAGS are being set so we can copy them.
+    if env['platform'] == 'javascript':
+        # Forcibly undefine this macro so SIMD is not used in this file,
+        # since currently unsupported in WASM
+        tmp_env = env_freetype.Clone()
+        tmp_env.Append(CPPFLAGS=['-U__OPTIMIZE__'])
+        sfnt = tmp_env.Object(sfnt)
+    thirdparty_sources += [sfnt]
 
     env_thirdparty = env_freetype.Clone()
     env_thirdparty.disable_warnings()
@@ -101,4 +103,4 @@ if env['builtin_freetype']:
 # Godot source files
 env_freetype.add_source_files(env.modules_sources, "*.cpp")
 # Used in scene/, needs to be in main env
-env.Append(CCFLAGS=['-DFREETYPE_ENABLED'])
+env.Append(CPPFLAGS=['-DFREETYPE_ENABLED'])
diff --git a/modules/gdnative/SCsub b/modules/gdnative/SCsub
index 235f0b97bb..0cdd585558 100644
--- a/modules/gdnative/SCsub
+++ b/modules/gdnative/SCsub
@@ -12,7 +12,7 @@ env_gdnative.add_source_files(env.modules_sources, "nativescript/*.cpp")
 env_gdnative.add_source_files(env.modules_sources, "gdnative_library_singleton_editor.cpp")
 env_gdnative.add_source_files(env.modules_sources, "gdnative_library_editor_plugin.cpp")
 
-env_gdnative.Append(CPPPATH=['#modules/gdnative/include/'])
+env_gdnative.Prepend(CPPPATH=['#modules/gdnative/include/'])
 
 Export('env_gdnative')
 
@@ -36,7 +36,7 @@ if ARGUMENTS.get('gdnative_wrapper', False):
     gensource, = env_gdnative.CommandNoCache('gdnative_wrapper_code.gen.cpp', 'gdnative_api.json', run_in_subprocess(gdnative_builders.build_gdnative_wrapper_code))
 
     gd_wrapper_env = env.Clone()
-    gd_wrapper_env.Append(CPPPATH=['#modules/gdnative/include/'])
+    gd_wrapper_env.Prepend(CPPPATH=['#modules/gdnative/include/'])
 
     if gd_wrapper_env['use_lto']:
         if not env.msvc:
diff --git a/modules/gdnative/arvr/arvr_interface_gdnative.cpp b/modules/gdnative/arvr/arvr_interface_gdnative.cpp
index 9cd37ac950..c3f8688adb 100644
--- a/modules/gdnative/arvr/arvr_interface_gdnative.cpp
+++ b/modules/gdnative/arvr/arvr_interface_gdnative.cpp
@@ -198,6 +198,17 @@ CameraMatrix ARVRInterfaceGDNative::get_projection_for_eye(ARVRInterface::Eyes p
 	return cm;
 }
 
+unsigned int ARVRInterfaceGDNative::get_external_texture_for_eye(ARVRInterface::Eyes p_eye) {
+
+	ERR_FAIL_COND_V(interface == NULL, 0);
+
+	if ((interface->version.major > 1) || ((interface->version.major) == 1 && (interface->version.minor >= 1))) {
+		return (unsigned int)interface->get_external_texture_for_eye(data, (godot_int)p_eye);
+	} else {
+		return 0;
+	}
+}
+
 void ARVRInterfaceGDNative::commit_for_eye(ARVRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) {
 
 	ERR_FAIL_COND(interface == NULL);
@@ -211,6 +222,15 @@ void ARVRInterfaceGDNative::process() {
 	interface->process(data);
 }
 
+void ARVRInterfaceGDNative::notification(int p_what) {
+	ERR_FAIL_COND(interface == NULL);
+
+	// this is only available in interfaces that implement 1.1 or later
+	if ((interface->version.major > 1) || ((interface->version.major == 1) && (interface->version.minor > 0))) {
+		interface->notification(data, p_what);
+	}
+}
+
 /////////////////////////////////////////////////////////////////////////////////////
 // some helper callbacks
 
diff --git a/modules/gdnative/arvr/arvr_interface_gdnative.h b/modules/gdnative/arvr/arvr_interface_gdnative.h
index 015d0c8a2a..86396b067a 100644
--- a/modules/gdnative/arvr/arvr_interface_gdnative.h
+++ b/modules/gdnative/arvr/arvr_interface_gdnative.h
@@ -78,9 +78,11 @@ public:
 	// and a CameraMatrix version to ARVRServer
 	virtual CameraMatrix get_projection_for_eye(ARVRInterface::Eyes p_eye, real_t p_aspect, real_t p_z_near, real_t p_z_far);
 
+	virtual unsigned int get_external_texture_for_eye(ARVRInterface::Eyes p_eye);
 	virtual void commit_for_eye(ARVRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect);
 
 	virtual void process();
+	virtual void notification(int p_what);
 };
 
 #endif // ARVR_INTERFACE_GDNATIVE_H
diff --git a/modules/gdnative/config.py b/modules/gdnative/config.py
index a36e76287a..fde7f1a6e0 100644
--- a/modules/gdnative/config.py
+++ b/modules/gdnative/config.py
@@ -16,6 +16,7 @@ def get_doc_classes():
         "ResourceFormatLoaderVideoStreamGDNative",
         "StreamPeerGDNative",
         "VideoStreamGDNative",
+        "WebRTCPeerGDNative",
     ]
 
 def get_doc_path():
diff --git a/modules/gdnative/doc_classes/ARVRInterfaceGDNative.xml b/modules/gdnative/doc_classes/ARVRInterfaceGDNative.xml
index be86ff0541..efdb948660 100644
--- a/modules/gdnative/doc_classes/ARVRInterfaceGDNative.xml
+++ b/modules/gdnative/doc_classes/ARVRInterfaceGDNative.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ARVRInterfaceGDNative" inherits="ARVRInterface" category="Core" version="3.1">
+<class name="ARVRInterfaceGDNative" inherits="ARVRInterface" category="Core" version="3.2">
 	<brief_description>
 		GDNative wrapper for an ARVR interface
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/gdnative/doc_classes/GDNative.xml b/modules/gdnative/doc_classes/GDNative.xml
index ca0457623f..8750ddc56d 100644
--- a/modules/gdnative/doc_classes/GDNative.xml
+++ b/modules/gdnative/doc_classes/GDNative.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDNative" inherits="Reference" category="Core" version="3.1">
+<class name="GDNative" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="call_native">
 			<return type="Variant">
diff --git a/modules/gdnative/doc_classes/GDNativeLibrary.xml b/modules/gdnative/doc_classes/GDNativeLibrary.xml
index 754a6d2514..8bfd386b8d 100644
--- a/modules/gdnative/doc_classes/GDNativeLibrary.xml
+++ b/modules/gdnative/doc_classes/GDNativeLibrary.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDNativeLibrary" inherits="Resource" category="Core" version="3.1">
+<class name="GDNativeLibrary" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_current_dependencies" qualifiers="const">
 			<return type="PoolStringArray">
diff --git a/modules/gdnative/doc_classes/MultiplayerPeerGDNative.xml b/modules/gdnative/doc_classes/MultiplayerPeerGDNative.xml
index 4433179726..b9a01672a6 100644
--- a/modules/gdnative/doc_classes/MultiplayerPeerGDNative.xml
+++ b/modules/gdnative/doc_classes/MultiplayerPeerGDNative.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MultiplayerPeerGDNative" inherits="NetworkedMultiplayerPeer" category="Core" version="3.1">
+<class name="MultiplayerPeerGDNative" inherits="NetworkedMultiplayerPeer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/gdnative/doc_classes/NativeScript.xml b/modules/gdnative/doc_classes/NativeScript.xml
index 37d5b79e7a..ac8b793b22 100644
--- a/modules/gdnative/doc_classes/NativeScript.xml
+++ b/modules/gdnative/doc_classes/NativeScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NativeScript" inherits="Script" category="Core" version="3.1">
+<class name="NativeScript" inherits="Script" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_class_documentation" qualifiers="const">
 			<return type="String">
diff --git a/modules/gdnative/doc_classes/PacketPeerGDNative.xml b/modules/gdnative/doc_classes/PacketPeerGDNative.xml
index 0ae54bc9c7..acfb597cff 100644
--- a/modules/gdnative/doc_classes/PacketPeerGDNative.xml
+++ b/modules/gdnative/doc_classes/PacketPeerGDNative.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PacketPeerGDNative" inherits="PacketPeer" category="Core" version="3.1">
+<class name="PacketPeerGDNative" inherits="PacketPeer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/gdnative/doc_classes/PluginScript.xml b/modules/gdnative/doc_classes/PluginScript.xml
index 1876d06c20..b07122bbdf 100644
--- a/modules/gdnative/doc_classes/PluginScript.xml
+++ b/modules/gdnative/doc_classes/PluginScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="PluginScript" inherits="Script" category="Core" version="3.1">
+<class name="PluginScript" inherits="Script" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="new" qualifiers="vararg">
 			<return type="Object">
diff --git a/modules/gdnative/doc_classes/ResourceFormatLoaderVideoStreamGDNative.xml b/modules/gdnative/doc_classes/ResourceFormatLoaderVideoStreamGDNative.xml
index 61a7f60499..cd8b336778 100644
--- a/modules/gdnative/doc_classes/ResourceFormatLoaderVideoStreamGDNative.xml
+++ b/modules/gdnative/doc_classes/ResourceFormatLoaderVideoStreamGDNative.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceFormatLoaderVideoStreamGDNative" inherits="ResourceFormatLoader" category="Core" version="3.1">
+<class name="ResourceFormatLoaderVideoStreamGDNative" inherits="ResourceFormatLoader" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/gdnative/doc_classes/StreamPeerGDNative.xml b/modules/gdnative/doc_classes/StreamPeerGDNative.xml
index d86cd2c25a..f7e0d76fdb 100644
--- a/modules/gdnative/doc_classes/StreamPeerGDNative.xml
+++ b/modules/gdnative/doc_classes/StreamPeerGDNative.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="StreamPeerGDNative" inherits="StreamPeer" category="Core" version="3.1">
+<class name="StreamPeerGDNative" inherits="StreamPeer" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/gdnative/doc_classes/VideoStreamGDNative.xml b/modules/gdnative/doc_classes/VideoStreamGDNative.xml
index 20575c768b..ed7678b7be 100644
--- a/modules/gdnative/doc_classes/VideoStreamGDNative.xml
+++ b/modules/gdnative/doc_classes/VideoStreamGDNative.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VideoStreamGDNative" inherits="VideoStream" category="Core" version="3.1">
+<class name="VideoStreamGDNative" inherits="VideoStream" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_file">
 			<return type="String">
diff --git a/modules/gdnative/doc_classes/WebRTCPeerGDNative.xml b/modules/gdnative/doc_classes/WebRTCPeerGDNative.xml
new file mode 100644
index 0000000000..478889e031
--- /dev/null
+++ b/modules/gdnative/doc_classes/WebRTCPeerGDNative.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="WebRTCPeerGDNative" inherits="WebRTCPeer" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+	</methods>
+	<constants>
+	</constants>
+</class>
diff --git a/modules/gdnative/gdnative.cpp b/modules/gdnative/gdnative.cpp
index e8278825bc..c8e17e8dc5 100644
--- a/modules/gdnative/gdnative.cpp
+++ b/modules/gdnative/gdnative.cpp
@@ -243,7 +243,7 @@ void GDNativeLibrary::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_symbol_prefix", "symbol_prefix"), &GDNativeLibrary::set_symbol_prefix);
 	ClassDB::bind_method(D_METHOD("set_reloadable", "reloadable"), &GDNativeLibrary::set_reloadable);
 
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "config_file", PROPERTY_HINT_RESOURCE_TYPE, "ConfigFile"), "set_config_file", "get_config_file");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "config_file", PROPERTY_HINT_RESOURCE_TYPE, "ConfigFile", 0), "set_config_file", "get_config_file");
 
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "load_once"), "set_load_once", "should_load_once");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "singleton"), "set_singleton", "is_singleton");
diff --git a/modules/gdnative/gdnative.h b/modules/gdnative/gdnative.h
index 492dc5beaa..ef57387059 100644
--- a/modules/gdnative/gdnative.h
+++ b/modules/gdnative/gdnative.h
@@ -99,16 +99,20 @@ public:
 	}
 
 	_FORCE_INLINE_ void set_load_once(bool p_load_once) {
+		config_file->set_value("general", "load_once", p_load_once);
 		load_once = p_load_once;
 	}
 	_FORCE_INLINE_ void set_singleton(bool p_singleton) {
+		config_file->set_value("general", "singleton", p_singleton);
 		singleton = p_singleton;
 	}
 	_FORCE_INLINE_ void set_symbol_prefix(String p_symbol_prefix) {
+		config_file->set_value("general", "symbol_prefix", p_symbol_prefix);
 		symbol_prefix = p_symbol_prefix;
 	}
 
 	_FORCE_INLINE_ void set_reloadable(bool p_reloadable) {
+		config_file->set_value("general", "reloadable", p_reloadable);
 		reloadable = p_reloadable;
 	}
 
diff --git a/modules/gdnative/gdnative_api.json b/modules/gdnative/gdnative_api.json
index 71e7eecd1d..9882a89794 100644
--- a/modules/gdnative/gdnative_api.json
+++ b/modules/gdnative/gdnative_api.json
@@ -6427,7 +6427,24 @@
         "major": 3,
         "minor": 1
       },
-      "next": null,
+      "next": {
+        "type": "NET",
+        "version": {
+          "major": 3,
+          "minor": 2
+        },
+        "next": null,
+        "api": [
+          {
+            "name": "godot_net_bind_webrtc_peer",
+            "return_type": "void",
+            "arguments": [
+              ["godot_object *", "p_obj"],
+              ["const godot_net_webrtc_peer *", "p_interface"]
+            ]
+          }
+        ]
+      },
       "api": [
         {
           "name": "godot_net_bind_stream_peer",
diff --git a/modules/gdnative/include/arvr/godot_arvr.h b/modules/gdnative/include/arvr/godot_arvr.h
index 0d14f3743f..657090fa70 100644
--- a/modules/gdnative/include/arvr/godot_arvr.h
+++ b/modules/gdnative/include/arvr/godot_arvr.h
@@ -42,7 +42,7 @@ extern "C" {
 
 // Use these to populate version in your plugin
 #define GODOTVR_API_MAJOR 1
-#define GODOTVR_API_MINOR 0
+#define GODOTVR_API_MINOR 1
 
 typedef struct {
 	godot_gdnative_api_version version; /* version of our API */
@@ -61,6 +61,9 @@ typedef struct {
 	void (*fill_projection_for_eye)(void *, godot_real *, godot_int, godot_real, godot_real, godot_real);
 	void (*commit_for_eye)(void *, godot_int, godot_rid *, godot_rect2 *);
 	void (*process)(void *);
+	// only in 1.1 onwards
+	godot_int (*get_external_texture_for_eye)(void *, godot_int);
+	void (*notification)(void *, godot_int);
 } godot_arvr_interface_gdnative;
 
 void GDAPI godot_arvr_register_interface(const godot_arvr_interface_gdnative *p_interface);
diff --git a/modules/gdnative/include/net/godot_net.h b/modules/gdnative/include/net/godot_net.h
index d7de04e725..c1bc9daab5 100644
--- a/modules/gdnative/include/net/godot_net.h
+++ b/modules/gdnative/include/net/godot_net.h
@@ -111,6 +111,35 @@ typedef struct {
 /* Binds a MultiplayerPeerGDNative to the provided interface */
 void GDAPI godot_net_bind_multiplayer_peer(godot_object *p_obj, const godot_net_multiplayer_peer *);
 
+typedef struct {
+	godot_gdnative_api_version version; /* version of our API */
+
+	godot_object *data; /* User reference */
+
+	/* This is PacketPeer */
+	godot_error (*get_packet)(void *, const uint8_t **, int *);
+	godot_error (*put_packet)(void *, const uint8_t *, int);
+	godot_int (*get_available_packet_count)(const void *);
+	godot_int (*get_max_packet_size)(const void *);
+
+	/* This is WebRTCPeer */
+	void (*set_write_mode)(void *, godot_int);
+	godot_int (*get_write_mode)(const void *);
+	bool (*was_string_packet)(const void *);
+	godot_int (*get_connection_state)(const void *);
+
+	godot_error (*create_offer)(void *);
+	godot_error (*set_remote_description)(void *, const char *, const char *);
+	godot_error (*set_local_description)(void *, const char *, const char *);
+	godot_error (*add_ice_candidate)(void *, const char *, int, const char *);
+	godot_error (*poll)(void *);
+
+	void *next; /* For extension? */
+} godot_net_webrtc_peer;
+
+/* Binds a PacketPeerGDNative to the provided interface */
+void GDAPI godot_net_bind_webrtc_peer(godot_object *p_obj, const godot_net_webrtc_peer *);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/modules/gdnative/nativescript/api_generator.cpp b/modules/gdnative/nativescript/api_generator.cpp
index 7eb4294732..e0cf990f83 100644
--- a/modules/gdnative/nativescript/api_generator.cpp
+++ b/modules/gdnative/nativescript/api_generator.cpp
@@ -139,6 +139,34 @@ static String get_type_name(const PropertyInfo &info) {
 }
 
 /*
+ * Some comparison helper functions we need 
+ */
+
+struct MethodInfoComparator {
+	StringName::AlphCompare compare;
+	bool operator()(const MethodInfo &p_a, const MethodInfo &p_b) const {
+
+		return compare(p_a.name, p_b.name);
+	}
+};
+
+struct PropertyInfoComparator {
+	StringName::AlphCompare compare;
+	bool operator()(const PropertyInfo &p_a, const PropertyInfo &p_b) const {
+
+		return compare(p_a.name, p_b.name);
+	}
+};
+
+struct ConstantAPIComparator {
+	NoCaseComparator compare;
+	bool operator()(const ConstantAPI &p_a, const ConstantAPI &p_b) const {
+
+		return compare(p_a.constant_name, p_b.constant_name);
+	}
+};
+
+/*
  * Reads the entire Godot API to a list
  */
 List<ClassAPI> generate_c_api_classes() {
@@ -147,6 +175,7 @@ List<ClassAPI> generate_c_api_classes() {
 
 	List<StringName> classes;
 	ClassDB::get_class_list(&classes);
+	classes.sort_custom<StringName::AlphCompare>();
 
 	// Register global constants as a fake GlobalConstants singleton class
 	{
@@ -162,6 +191,7 @@ List<ClassAPI> generate_c_api_classes() {
 			constant_api.constant_value = GlobalConstants::get_global_constant_value(i);
 			global_constants_api.constants.push_back(constant_api);
 		}
+		global_constants_api.constants.sort_custom<ConstantAPIComparator>();
 		api.push_back(global_constants_api);
 	}
 
@@ -193,6 +223,7 @@ List<ClassAPI> generate_c_api_classes() {
 		{
 			List<String> constant;
 			ClassDB::get_integer_constant_list(class_name, &constant, true);
+			constant.sort_custom<NoCaseComparator>();
 			for (List<String>::Element *c = constant.front(); c != NULL; c = c->next()) {
 				ConstantAPI constant_api;
 				constant_api.constant_name = c->get();
@@ -206,6 +237,7 @@ List<ClassAPI> generate_c_api_classes() {
 		{
 			List<MethodInfo> signals_;
 			ClassDB::get_signal_list(class_name, &signals_, true);
+			signals_.sort_custom<MethodInfoComparator>();
 
 			for (int i = 0; i < signals_.size(); i++) {
 				SignalAPI signal;
@@ -245,6 +277,7 @@ List<ClassAPI> generate_c_api_classes() {
 		{
 			List<PropertyInfo> properties;
 			ClassDB::get_property_list(class_name, &properties, true);
+			properties.sort_custom<PropertyInfoComparator>();
 
 			for (List<PropertyInfo>::Element *p = properties.front(); p != NULL; p = p->next()) {
 				PropertyAPI property_api;
@@ -272,6 +305,7 @@ List<ClassAPI> generate_c_api_classes() {
 		{
 			List<MethodInfo> methods;
 			ClassDB::get_method_list(class_name, &methods, true);
+			methods.sort_custom<MethodInfoComparator>();
 
 			for (List<MethodInfo>::Element *m = methods.front(); m != NULL; m = m->next()) {
 				MethodAPI method_api;
@@ -323,6 +357,9 @@ List<ClassAPI> generate_c_api_classes() {
 						arg_type = "Variant";
 					} else if (arg_info.type == Variant::OBJECT) {
 						arg_type = arg_info.class_name;
+						if (arg_type == "") {
+							arg_type = Variant::get_type_name(arg_info.type);
+						}
 					} else {
 						arg_type = Variant::get_type_name(arg_info.type);
 					}
diff --git a/modules/gdnative/net/SCsub b/modules/gdnative/net/SCsub
index e915703935..18ab9986b0 100644
--- a/modules/gdnative/net/SCsub
+++ b/modules/gdnative/net/SCsub
@@ -3,5 +3,11 @@
 Import('env')
 Import('env_gdnative')
 
-env_gdnative.add_source_files(env.modules_sources, '*.cpp')
+env_net = env_gdnative.Clone()
+
+has_webrtc = env_net["module_webrtc_enabled"]
+if has_webrtc:
+    env_net.Append(CPPDEFINES=['WEBRTC_GDNATIVE_ENABLED'])
+
+env_net.add_source_files(env.modules_sources, '*.cpp')
 
diff --git a/drivers/gl_context/context_gl.h b/modules/gdnative/net/webrtc_peer_gdnative.cpp
index 13141d795c..60b1ed4fe4 100644
--- a/drivers/gl_context/context_gl.h
+++ b/modules/gdnative/net/webrtc_peer_gdnative.cpp
@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  context_gl.h                                                         */
+/*  packet_peer_gdnative.cpp                                             */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,39 +28,18 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef CONTEXT_GL_H
-#define CONTEXT_GL_H
-
-#if defined(OPENGL_ENABLED) || defined(GLES_ENABLED)
-
-#include "core/typedefs.h"
-
-/**
-	@author Juan Linietsky <reduzio@gmail.com>
-*/
-
-class ContextGL {
-
-	static ContextGL *singleton;
-
-public:
-	static ContextGL *get_singleton();
-
-	virtual void release_current() = 0;
-
-	virtual void make_current() = 0;
-
-	virtual void swap_buffers() = 0;
-
-	virtual Error initialize() = 0;
-
-	virtual void set_use_vsync(bool p_use) = 0;
-	virtual bool is_using_vsync() const = 0;
-
-	ContextGL();
-	~ContextGL();
-};
+#include "modules/gdnative/gdnative.h"
+#include "modules/gdnative/include/net/godot_net.h"
 
+#ifdef WEBRTC_GDNATIVE_ENABLED
+#include "modules/webrtc/webrtc_peer_gdnative.h"
 #endif
 
+extern "C" {
+
+void GDAPI godot_net_bind_webrtc_peer(godot_object *p_obj, const godot_net_webrtc_peer *p_impl) {
+#ifdef WEBRTC_GDNATIVE_ENABLED
+	((WebRTCPeerGDNative *)p_obj)->set_native_webrtc_peer(p_impl);
 #endif
+}
+}
diff --git a/modules/gdnative/pluginscript/pluginscript_script.cpp b/modules/gdnative/pluginscript/pluginscript_script.cpp
index 3450a032c5..8dbbd2e4eb 100644
--- a/modules/gdnative/pluginscript/pluginscript_script.cpp
+++ b/modules/gdnative/pluginscript/pluginscript_script.cpp
@@ -34,7 +34,7 @@
 #include "pluginscript_instance.h"
 #include "pluginscript_script.h"
 
-#if DEBUG_ENABLED
+#ifdef DEBUG_ENABLED
 #define __ASSERT_SCRIPT_REASON "Cannot retrieve pluginscript class for this script, is you code correct ?"
 #define ASSERT_SCRIPT_VALID()                \
 	{                                        \
diff --git a/modules/gdnative/videodecoder/SCsub b/modules/gdnative/videodecoder/SCsub
index 8d9c1ff50e..04cc8ed604 100644
--- a/modules/gdnative/videodecoder/SCsub
+++ b/modules/gdnative/videodecoder/SCsub
@@ -5,5 +5,5 @@ Import('env_modules')
 
 env_vsdecoder_gdnative = env_modules.Clone()
 
-env_vsdecoder_gdnative.Append(CPPPATH=['#modules/gdnative/include/'])
+env_vsdecoder_gdnative.Prepend(CPPPATH=['#modules/gdnative/include/'])
 env_vsdecoder_gdnative.add_source_files(env.modules_sources, '*.cpp')
diff --git a/modules/gdnative/videodecoder/video_stream_gdnative.cpp b/modules/gdnative/videodecoder/video_stream_gdnative.cpp
index 8fcebe7855..be131c5402 100644
--- a/modules/gdnative/videodecoder/video_stream_gdnative.cpp
+++ b/modules/gdnative/videodecoder/video_stream_gdnative.cpp
@@ -61,8 +61,8 @@ int64_t GDAPI godot_videodecoder_file_seek(void *ptr, int64_t pos, int whence) {
 	// file
 	FileAccess *file = reinterpret_cast<FileAccess *>(ptr);
 
-	size_t len = file->get_len();
 	if (file) {
+		size_t len = file->get_len();
 		switch (whence) {
 			case SEEK_SET: {
 				// Just for explicitness
@@ -146,23 +146,25 @@ void VideoStreamPlaybackGDNative::update(float p_delta) {
 	ERR_FAIL_COND(interface == NULL);
 	interface->update(data_struct, p_delta);
 
-	if (pcm_write_idx >= 0) {
-		// Previous remains
-		int mixed = mix_callback(mix_udata, pcm, samples_decoded);
-		if (mixed == samples_decoded) {
-			pcm_write_idx = -1;
-		} else {
-			samples_decoded -= mixed;
-			pcm_write_idx += mixed;
+	if (mix_callback) {
+		if (pcm_write_idx >= 0) {
+			// Previous remains
+			int mixed = mix_callback(mix_udata, pcm, samples_decoded);
+			if (mixed == samples_decoded) {
+				pcm_write_idx = -1;
+			} else {
+				samples_decoded -= mixed;
+				pcm_write_idx += mixed;
+			}
 		}
-	}
-	if (pcm_write_idx < 0) {
-		samples_decoded = interface->get_audioframe(data_struct, pcm, AUX_BUFFER_SIZE);
-		pcm_write_idx = mix_callback(mix_udata, pcm, samples_decoded);
-		if (pcm_write_idx == samples_decoded) {
-			pcm_write_idx = -1;
-		} else {
-			samples_decoded -= pcm_write_idx;
+		if (pcm_write_idx < 0) {
+			samples_decoded = interface->get_audioframe(data_struct, pcm, AUX_BUFFER_SIZE);
+			pcm_write_idx = mix_callback(mix_udata, pcm, samples_decoded);
+			if (pcm_write_idx == samples_decoded) {
+				pcm_write_idx = -1;
+			} else {
+				samples_decoded -= pcm_write_idx;
+			}
 		}
 	}
 
diff --git a/modules/gdscript/doc_classes/GDScript.xml b/modules/gdscript/doc_classes/GDScript.xml
index 4cefdbd7cb..d606a41fab 100644
--- a/modules/gdscript/doc_classes/GDScript.xml
+++ b/modules/gdscript/doc_classes/GDScript.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDScript" inherits="Script" category="Core" version="3.1">
+<class name="GDScript" inherits="Script" category="Core" version="3.2">
 	<brief_description>
 		A script implemented in the GDScript programming language.
 	</brief_description>
@@ -10,8 +10,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/scripting/gdscript/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_as_byte_code" qualifiers="const">
 			<return type="PoolByteArray">
diff --git a/modules/gdscript/doc_classes/GDScriptFunctionState.xml b/modules/gdscript/doc_classes/GDScriptFunctionState.xml
index c205cedef5..690953108f 100644
--- a/modules/gdscript/doc_classes/GDScriptFunctionState.xml
+++ b/modules/gdscript/doc_classes/GDScriptFunctionState.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDScriptFunctionState" inherits="Reference" category="Core" version="3.1">
+<class name="GDScriptFunctionState" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		State of a function call after yielding.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="is_valid" qualifiers="const">
 			<return type="bool">
diff --git a/modules/gdscript/doc_classes/GDScriptNativeClass.xml b/modules/gdscript/doc_classes/GDScriptNativeClass.xml
index 90935b5c22..70583d47a7 100644
--- a/modules/gdscript/doc_classes/GDScriptNativeClass.xml
+++ b/modules/gdscript/doc_classes/GDScriptNativeClass.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GDScriptNativeClass" inherits="Reference" category="Core" version="3.1">
+<class name="GDScriptNativeClass" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="new">
 			<return type="Variant">
diff --git a/modules/gdscript/gdscript.cpp b/modules/gdscript/gdscript.cpp
index 4385cf12ad..33e99cb82f 100644
--- a/modules/gdscript/gdscript.cpp
+++ b/modules/gdscript/gdscript.cpp
@@ -226,7 +226,7 @@ void GDScript::get_script_method_list(List<MethodInfo> *p_list) const {
 
 	const GDScript *current = this;
 	while (current) {
-		for (const Map<StringName, GDScriptFunction *>::Element *E = member_functions.front(); E; E = E->next()) {
+		for (const Map<StringName, GDScriptFunction *>::Element *E = current->member_functions.front(); E; E = E->next()) {
 			GDScriptFunction *func = E->get();
 			MethodInfo mi;
 			mi.name = E->key();
@@ -597,7 +597,7 @@ Error GDScript::reload(bool p_keep_state) {
 			return err;
 		}
 	}
-#if DEBUG_ENABLED
+#ifdef DEBUG_ENABLED
 	for (const List<GDScriptWarning>::Element *E = parser.get_warnings().front(); E; E = E->next()) {
 		const GDScriptWarning &warning = E->get();
 		if (ScriptDebugger::get_singleton()) {
@@ -1945,6 +1945,10 @@ String GDScriptWarning::get_message() const {
 			CHECK_SYMBOLS(1);
 			return "The local variable '" + symbols[0] + "' is declared but never used in the block.";
 		} break;
+		case SHADOWED_VARIABLE: {
+			CHECK_SYMBOLS(2);
+			return "The local variable '" + symbols[0] + "' is shadowing an already defined variable at line " + symbols[1] + ".";
+		} break;
 		case UNUSED_CLASS_VARIABLE: {
 			CHECK_SYMBOLS(1);
 			return "The class variable '" + symbols[0] + "' is declared but never used in the script.";
@@ -2048,6 +2052,7 @@ String GDScriptWarning::get_name_from_code(Code p_code) {
 		"UNASSIGNED_VARIABLE",
 		"UNASSIGNED_VARIABLE_OP_ASSIGN",
 		"UNUSED_VARIABLE",
+		"SHADOWED_VARIABLE",
 		"UNUSED_CLASS_VARIABLE",
 		"UNUSED_ARGUMENT",
 		"UNREACHABLE_CODE",
diff --git a/modules/gdscript/gdscript.h b/modules/gdscript/gdscript.h
index ded873c7d3..38009b878d 100644
--- a/modules/gdscript/gdscript.h
+++ b/modules/gdscript/gdscript.h
@@ -273,6 +273,7 @@ struct GDScriptWarning {
 		UNASSIGNED_VARIABLE, // Variable used but never assigned
 		UNASSIGNED_VARIABLE_OP_ASSIGN, // Variable never assigned but used in an assignment operation (+=, *=, etc)
 		UNUSED_VARIABLE, // Local variable is declared but never used
+		SHADOWED_VARIABLE, // Variable name shadowed by other variable
 		UNUSED_CLASS_VARIABLE, // Class variable is declared but never used in the file
 		UNUSED_ARGUMENT, // Function argument is never used
 		UNREACHABLE_CODE, // Code after a return statement
@@ -406,9 +407,10 @@ public:
 		csi.resize(_debug_call_stack_pos);
 		for (int i = 0; i < _debug_call_stack_pos; i++) {
 			csi.write[_debug_call_stack_pos - i - 1].line = _call_stack[i].line ? *_call_stack[i].line : 0;
-			if (_call_stack[i].function)
+			if (_call_stack[i].function) {
 				csi.write[_debug_call_stack_pos - i - 1].func = _call_stack[i].function->get_name();
-			csi.write[_debug_call_stack_pos - i - 1].file = _call_stack[i].function->get_script()->get_path();
+				csi.write[_debug_call_stack_pos - i - 1].file = _call_stack[i].function->get_script()->get_path();
+			}
 		}
 		return csi;
 	}
@@ -444,6 +446,7 @@ public:
 	virtual void get_reserved_words(List<String> *p_words) const;
 	virtual void get_comment_delimiters(List<String> *p_delimiters) const;
 	virtual void get_string_delimiters(List<String> *p_delimiters) const;
+	virtual String _get_processed_template(const String &p_template, const String &p_base_class_name) const;
 	virtual Ref<Script> get_template(const String &p_class_name, const String &p_base_class_name) const;
 	virtual bool is_using_templates();
 	virtual void make_template(const String &p_class_name, const String &p_base_class_name, Ref<Script> &p_script);
diff --git a/modules/gdscript/gdscript_compiler.cpp b/modules/gdscript/gdscript_compiler.cpp
index ae67521749..f7be0ce37c 100644
--- a/modules/gdscript/gdscript_compiler.cpp
+++ b/modules/gdscript/gdscript_compiler.cpp
@@ -480,16 +480,16 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
 			switch (cast_type.kind) {
 				case GDScriptDataType::BUILTIN: {
 					codegen.opcodes.push_back(GDScriptFunction::OPCODE_CAST_TO_BUILTIN);
-					codegen.opcodes.push_back(cn->cast_type.builtin_type);
+					codegen.opcodes.push_back(cast_type.builtin_type);
 				} break;
 				case GDScriptDataType::NATIVE: {
 					int class_idx;
-					if (GDScriptLanguage::get_singleton()->get_global_map().has(cn->cast_type.native_type)) {
+					if (GDScriptLanguage::get_singleton()->get_global_map().has(cast_type.native_type)) {
 
-						class_idx = GDScriptLanguage::get_singleton()->get_global_map()[cn->cast_type.native_type];
+						class_idx = GDScriptLanguage::get_singleton()->get_global_map()[cast_type.native_type];
 						class_idx |= (GDScriptFunction::ADDR_TYPE_GLOBAL << GDScriptFunction::ADDR_BITS); //argument (stack root)
 					} else {
-						_set_error("Invalid native class type '" + String(cn->cast_type.native_type) + "'.", cn);
+						_set_error("Invalid native class type '" + String(cast_type.native_type) + "'.", cn);
 						return -1;
 					}
 					codegen.opcodes.push_back(GDScriptFunction::OPCODE_CAST_TO_NATIVE); // perform operator
@@ -498,7 +498,7 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
 				case GDScriptDataType::SCRIPT:
 				case GDScriptDataType::GDSCRIPT: {
 
-					Variant script = cn->cast_type.script_type;
+					Variant script = cast_type.script_type;
 					int idx = codegen.get_constant_pos(script);
 					idx |= GDScriptFunction::ADDR_TYPE_LOCAL_CONSTANT << GDScriptFunction::ADDR_BITS; //make it a local constant (faster access)
 
@@ -1863,6 +1863,19 @@ Error GDScriptCompiler::_parse_class_level(GDScript *p_script, const GDScriptPar
 			p_script->base = base;
 			p_script->_base = base.ptr();
 			p_script->member_indices = base->member_indices;
+
+			if (p_class->base_type.kind == GDScriptParser::DataType::CLASS) {
+				if (!parsed_classes.has(p_script->_base)) {
+					if (parsing_classes.has(p_script->_base)) {
+						_set_error("Cyclic class reference for '" + String(p_class->name) + "'.", p_class);
+						return ERR_PARSE_ERROR;
+					}
+					Error err = _parse_class_level(p_script->_base, p_class->base_type.class_type, p_keep_state);
+					if (err) {
+						return err;
+					}
+				}
+			}
 		} break;
 		default: {
 			_set_error("Parser bug: invalid inheritance.", p_class);
diff --git a/modules/gdscript/gdscript_editor.cpp b/modules/gdscript/gdscript_editor.cpp
index fafc73b7e6..d91e32249e 100644
--- a/modules/gdscript/gdscript_editor.cpp
+++ b/modules/gdscript/gdscript_editor.cpp
@@ -44,12 +44,43 @@ void GDScriptLanguage::get_comment_delimiters(List<String> *p_delimiters) const
 
 	p_delimiters->push_back("#");
 }
+
 void GDScriptLanguage::get_string_delimiters(List<String> *p_delimiters) const {
 
 	p_delimiters->push_back("\" \"");
 	p_delimiters->push_back("' '");
 	p_delimiters->push_back("\"\"\" \"\"\"");
 }
+
+String GDScriptLanguage::_get_processed_template(const String &p_template, const String &p_base_class_name) const {
+
+	String processed_template = p_template;
+
+#ifdef TOOLS_ENABLED
+	if (EDITOR_DEF("text_editor/completion/add_type_hints", false)) {
+		processed_template = processed_template.replace("%INT_TYPE%", ": int");
+		processed_template = processed_template.replace("%STRING_TYPE%", ": String");
+		processed_template = processed_template.replace("%FLOAT_TYPE%", ": float");
+		processed_template = processed_template.replace("%VOID_RETURN%", " -> void");
+	} else {
+		processed_template = processed_template.replace("%INT_TYPE%", "");
+		processed_template = processed_template.replace("%STRING_TYPE%", "");
+		processed_template = processed_template.replace("%FLOAT_TYPE%", "");
+		processed_template = processed_template.replace("%VOID_RETURN%", "");
+	}
+#else
+	processed_template = processed_template.replace("%INT_TYPE%", "");
+	processed_template = processed_template.replace("%STRING_TYPE%", "");
+	processed_template = processed_template.replace("%FLOAT_TYPE%", "");
+	processed_template = processed_template.replace("%VOID_RETURN%", "");
+#endif
+
+	processed_template = processed_template.replace("%BASE%", p_base_class_name);
+	processed_template = processed_template.replace("%TS%", _get_indentation());
+
+	return processed_template;
+}
+
 Ref<Script> GDScriptLanguage::get_template(const String &p_class_name, const String &p_base_class_name) const {
 	String _template = "extends %BASE%\n"
 					   "\n"
@@ -65,27 +96,7 @@ Ref<Script> GDScriptLanguage::get_template(const String &p_class_name, const Str
 					   "#func _process(delta%FLOAT_TYPE%)%VOID_RETURN%:\n"
 					   "#%TS%pass\n";
 
-#ifdef TOOLS_ENABLED
-	if (EDITOR_DEF("text_editor/completion/add_type_hints", false)) {
-		_template = _template.replace("%INT_TYPE%", ": int");
-		_template = _template.replace("%STRING_TYPE%", ": String");
-		_template = _template.replace("%FLOAT_TYPE%", ": float");
-		_template = _template.replace("%VOID_RETURN%", " -> void");
-	} else {
-		_template = _template.replace("%INT_TYPE%", "");
-		_template = _template.replace("%STRING_TYPE%", "");
-		_template = _template.replace("%FLOAT_TYPE%", "");
-		_template = _template.replace("%VOID_RETURN%", "");
-	}
-#else
-	_template = _template.replace("%INT_TYPE%", "");
-	_template = _template.replace("%STRING_TYPE%", "");
-	_template = _template.replace("%FLOAT_TYPE%", "");
-	_template = _template.replace("%VOID_RETURN%", "");
-#endif
-
-	_template = _template.replace("%BASE%", p_base_class_name);
-	_template = _template.replace("%TS%", _get_indentation());
+	_template = _get_processed_template(_template, p_base_class_name);
 
 	Ref<GDScript> script;
 	script.instance();
@@ -101,10 +112,8 @@ bool GDScriptLanguage::is_using_templates() {
 
 void GDScriptLanguage::make_template(const String &p_class_name, const String &p_base_class_name, Ref<Script> &p_script) {
 
-	String src = p_script->get_source_code();
-	src = src.replace("%BASE%", p_base_class_name);
-	src = src.replace("%TS%", _get_indentation());
-	p_script->set_source_code(src);
+	String _template = _get_processed_template(p_script->get_source_code(), p_base_class_name);
+	p_script->set_source_code(_template);
 }
 
 bool GDScriptLanguage::validate(const String &p_script, int &r_line_error, int &r_col_error, String &r_test_error, const String &p_path, List<String> *r_functions, List<ScriptLanguage::Warning> *r_warnings, Set<int> *r_safe_lines) const {
@@ -502,8 +511,10 @@ struct GDScriptCompletionIdentifier {
 
 static void _get_directory_contents(EditorFileSystemDirectory *p_dir, Set<String> &r_list) {
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	for (int i = 0; i < p_dir->get_file_count(); i++) {
-		r_list.insert("\"" + p_dir->get_file_path(i) + "\"");
+		r_list.insert(quote_style + p_dir->get_file_path(i) + quote_style);
 	}
 
 	for (int i = 0; i < p_dir->get_subdir_count(); i++) {
@@ -1061,7 +1072,8 @@ static bool _guess_expression_type(GDScriptCompletionContext &p_context, const G
 						case GDScriptParser::OperatorNode::OP_BIT_AND: vop = Variant::OP_BIT_AND; break;
 						case GDScriptParser::OperatorNode::OP_BIT_OR: vop = Variant::OP_BIT_OR; break;
 						case GDScriptParser::OperatorNode::OP_BIT_XOR: vop = Variant::OP_BIT_XOR; break;
-						default: {}
+						default: {
+						}
 					}
 
 					if (vop == Variant::OP_MAX) {
@@ -1116,7 +1128,8 @@ static bool _guess_expression_type(GDScriptCompletionContext &p_context, const G
 				} break;
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	// It may have found a null, but that's never useful
@@ -1938,7 +1951,7 @@ static void _find_identifiers_in_base(const GDScriptCompletionContext &p_context
 					} else {
 						base_type.has_type = script->get_instance_base_type() != StringName();
 						base_type.kind = GDScriptParser::DataType::NATIVE;
-						base_type.script_type = script->get_instance_base_type();
+						base_type.native_type = script->get_instance_base_type();
 					}
 				} else {
 					return;
@@ -2165,7 +2178,8 @@ static void _find_identifiers(const GDScriptCompletionContext &p_context, bool p
 static void _find_call_arguments(const GDScriptCompletionContext &p_context, const GDScriptCompletionIdentifier &p_base, const StringName &p_method, int p_argidx, bool p_static, Set<String> &r_result, String &r_arghint) {
 	Variant base = p_base.value;
 	GDScriptParser::DataType base_type = p_base.type;
-	bool _static = false;
+
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
 
 	while (base_type.has_type) {
 		switch (base_type.kind) {
@@ -2176,18 +2190,16 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 						return;
 					}
 				}
-				if (!_static) {
-					for (int i = 0; i < base_type.class_type->functions.size(); i++) {
-						if (base_type.class_type->functions[i]->name == p_method) {
-							r_arghint = _make_arguments_hint(base_type.class_type->functions[i], p_argidx);
-							return;
-						}
+				for (int i = 0; i < base_type.class_type->functions.size(); i++) {
+					if (base_type.class_type->functions[i]->name == p_method) {
+						r_arghint = _make_arguments_hint(base_type.class_type->functions[i], p_argidx);
+						return;
 					}
 				}
 
 				if ((p_method == "connect" || p_method == "emit_signal") && p_argidx == 0) {
 					for (int i = 0; i < base_type.class_type->_signals.size(); i++) {
-						r_result.insert("\"" + base_type.class_type->_signals[i].name.operator String() + "\"");
+						r_result.insert(quote_style + base_type.class_type->_signals[i].name.operator String() + quote_style);
 					}
 				}
 
@@ -2200,7 +2212,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 						List<MethodInfo> signals;
 						gds->get_script_signal_list(&signals);
 						for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-							r_result.insert("\"" + E->get().name + "\"");
+							r_result.insert(quote_style + E->get().name + quote_style);
 						}
 					}
 					Ref<GDScript> base_script = gds->get_base_script();
@@ -2259,7 +2271,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 					List<MethodInfo> signals;
 					ClassDB::get_signal_list(class_name, &signals);
 					for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-						r_result.insert("\"" + E->get().name + "\"");
+						r_result.insert(quote_style + E->get().name + quote_style);
 					}
 				}
 
@@ -2274,7 +2286,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 							continue;
 						}
 						String name = s.get_slice("/", 1);
-						r_result.insert("\"/root/" + name + "\"");
+						r_result.insert(quote_style + "/root/" + name + quote_style);
 					}
 				}
 
@@ -2288,7 +2300,7 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 							continue;
 						}
 						String name = s.get_slice("/", 1);
-						r_result.insert("\"" + name + "\"");
+						r_result.insert(quote_style + name + quote_style);
 					}
 				}
 
@@ -2323,6 +2335,8 @@ static void _find_call_arguments(const GDScriptCompletionContext &p_context, con
 
 static void _find_call_arguments(GDScriptCompletionContext &p_context, const GDScriptParser::Node *p_node, int p_argidx, Set<String> &r_result, bool &r_forced, String &r_arghint) {
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	if (!p_node || p_node->type != GDScriptParser::Node::TYPE_OPERATOR) {
 		return;
 	}
@@ -2440,7 +2454,7 @@ static void _find_call_arguments(GDScriptCompletionContext &p_context, const GDS
 		Set<String> methods;
 		_find_identifiers_in_base(p_context, connect_base, true, methods);
 		for (Set<String>::Element *E = methods.front(); E; E = E->next()) {
-			r_result.insert("\"" + E->get().replace("(", "").replace(")", "") + "\"");
+			r_result.insert(quote_style + E->get().replace("(", "").replace(")", "") + quote_style);
 		}
 	}
 
@@ -2449,6 +2463,8 @@ static void _find_call_arguments(GDScriptCompletionContext &p_context, const GDS
 
 Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base_path, Object *p_owner, List<String> *r_options, bool &r_forced, String &r_call_hint) {
 
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", false) ? "'" : "\"";
+
 	GDScriptParser parser;
 
 	parser.parse(p_code, p_base_path, false, "", true);
@@ -2515,7 +2531,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 						continue;
 					}
 					String name = s.get_slice("/", 1);
-					options.insert("\"/root/" + name + "\"");
+					options.insert(quote_style + "/root/" + name + quote_style);
 				}
 			}
 		} break;
@@ -2655,7 +2671,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 				switch (base_type.kind) {
 					case GDScriptParser::DataType::CLASS: {
 						for (int i = 0; i < base_type.class_type->_signals.size(); i++) {
-							options.insert("\"" + base_type.class_type->_signals[i].name.operator String() + "\"");
+							options.insert(quote_style + base_type.class_type->_signals[i].name.operator String() + quote_style);
 						}
 						base_type = base_type.class_type->base_type;
 					} break;
@@ -2666,7 +2682,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 							List<MethodInfo> signals;
 							scr->get_script_signal_list(&signals);
 							for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-								options.insert("\"" + E->get().name + "\"");
+								options.insert(quote_style + E->get().name + quote_style);
 							}
 							Ref<Script> base_script = scr->get_base_script();
 							if (base_script.is_valid()) {
@@ -2693,7 +2709,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 						List<MethodInfo> signals;
 						ClassDB::get_signal_list(class_name, &signals);
 						for (List<MethodInfo>::Element *E = signals.front(); E; E = E->next()) {
-							options.insert("\"" + E->get().name + "\"");
+							options.insert(quote_style + E->get().name + quote_style);
 						}
 					} break;
 					default: {
@@ -2879,7 +2895,7 @@ Error GDScriptLanguage::complete_code(const String &p_code, const String &p_base
 String GDScriptLanguage::_get_indentation() const {
 #ifdef TOOLS_ENABLED
 	if (Engine::get_singleton()->is_editor_hint()) {
-		bool use_space_indentation = EDITOR_DEF("text_editor/indent/type", 0);
+		bool use_space_indentation = EDITOR_DEF("text_editor/indent/type", false);
 
 		if (use_space_indentation) {
 			int indent_size = EDITOR_DEF("text_editor/indent/size", 4);
@@ -2997,8 +3013,8 @@ static Error _lookup_symbol_from_base(const GDScriptParser::DataType &p_base, co
 							}
 						}
 					}
+					base_type = base_type.class_type->base_type;
 				}
-				base_type = base_type.class_type->base_type;
 			} break;
 			case GDScriptParser::DataType::SCRIPT:
 			case GDScriptParser::DataType::GDSCRIPT: {
@@ -3371,7 +3387,8 @@ Error GDScriptLanguage::lookup_code(const String &p_code, const String &p_symbol
 				return OK;
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return ERR_CANT_RESOLVE;
diff --git a/modules/gdscript/gdscript_functions.cpp b/modules/gdscript/gdscript_functions.cpp
index 44d44462ca..5ebcddfd7c 100644
--- a/modules/gdscript/gdscript_functions.cpp
+++ b/modules/gdscript/gdscript_functions.cpp
@@ -68,12 +68,16 @@ const char *GDScriptFunctions::get_func_name(Function p_func) {
 		"exp",
 		"is_nan",
 		"is_inf",
+		"is_equal_approx",
+		"is_zero_approx",
 		"ease",
 		"decimals",
+		"step_decimals",
 		"stepify",
 		"lerp",
 		"inverse_lerp",
 		"range_lerp",
+		"smoothstep",
 		"dectime",
 		"randomize",
 		"randi",
@@ -315,6 +319,17 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			VALIDATE_ARG_NUM(0);
 			r_ret = Math::is_inf((double)*p_args[0]);
 		} break;
+		case MATH_ISEQUALAPPROX: {
+			VALIDATE_ARG_COUNT(2);
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			r_ret = Math::is_equal_approx((real_t)*p_args[0], (real_t)*p_args[1]);
+		} break;
+		case MATH_ISZEROAPPROX: {
+			VALIDATE_ARG_COUNT(1);
+			VALIDATE_ARG_NUM(0);
+			r_ret = Math::is_zero_approx((real_t)*p_args[0]);
+		} break;
 		case MATH_EASE: {
 			VALIDATE_ARG_COUNT(2);
 			VALIDATE_ARG_NUM(0);
@@ -325,6 +340,13 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			VALIDATE_ARG_COUNT(1);
 			VALIDATE_ARG_NUM(0);
 			r_ret = Math::step_decimals((double)*p_args[0]);
+			ERR_EXPLAIN("GDScript method 'decimals' is deprecated and has been renamed to 'step_decimals', please update your code accordingly.");
+			WARN_DEPRECATED
+		} break;
+		case MATH_STEP_DECIMALS: {
+			VALIDATE_ARG_COUNT(1);
+			VALIDATE_ARG_NUM(0);
+			r_ret = Math::step_decimals((double)*p_args[0]);
 		} break;
 		case MATH_STEPIFY: {
 			VALIDATE_ARG_COUNT(2);
@@ -369,6 +391,13 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			VALIDATE_ARG_NUM(4);
 			r_ret = Math::range_lerp((double)*p_args[0], (double)*p_args[1], (double)*p_args[2], (double)*p_args[3], (double)*p_args[4]);
 		} break;
+		case MATH_SMOOTHSTEP: {
+			VALIDATE_ARG_COUNT(3);
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			VALIDATE_ARG_NUM(2);
+			r_ret = Math::smoothstep((double)*p_args[0], (double)*p_args[1], (double)*p_args[2]);
+		} break;
 		case MATH_DECTIME: {
 			VALIDATE_ARG_COUNT(3);
 			VALIDATE_ARG_NUM(0);
@@ -768,11 +797,30 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			(void)VariantParser::parse(&ss, r_ret, errs, line);
 		} break;
 		case VAR_TO_BYTES: {
-			VALIDATE_ARG_COUNT(1);
+			bool full_objects = false;
+			if (p_arg_count < 1) {
+				r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
+				r_error.argument = 1;
+				r_ret = Variant();
+				return;
+			} else if (p_arg_count > 2) {
+				r_error.error = Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
+				r_error.argument = 2;
+				r_ret = Variant();
+			} else if (p_arg_count == 2) {
+				if (p_args[1]->get_type() != Variant::BOOL) {
+					r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
+					r_error.argument = 1;
+					r_error.expected = Variant::BOOL;
+					r_ret = Variant();
+					return;
+				}
+				full_objects = *p_args[1];
+			}
 
 			PoolByteArray barr;
 			int len;
-			Error err = encode_variant(*p_args[0], NULL, len);
+			Error err = encode_variant(*p_args[0], NULL, len, full_objects);
 			if (err) {
 				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
 				r_error.argument = 0;
@@ -784,15 +832,35 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			barr.resize(len);
 			{
 				PoolByteArray::Write w = barr.write();
-				encode_variant(*p_args[0], w.ptr(), len);
+				encode_variant(*p_args[0], w.ptr(), len, full_objects);
 			}
 			r_ret = barr;
 		} break;
 		case BYTES_TO_VAR: {
-			VALIDATE_ARG_COUNT(1);
+			bool allow_objects = false;
+			if (p_arg_count < 1) {
+				r_error.error = Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
+				r_error.argument = 1;
+				r_ret = Variant();
+				return;
+			} else if (p_arg_count > 2) {
+				r_error.error = Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
+				r_error.argument = 2;
+				r_ret = Variant();
+			} else if (p_arg_count == 2) {
+				if (p_args[1]->get_type() != Variant::BOOL) {
+					r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
+					r_error.argument = 1;
+					r_error.expected = Variant::BOOL;
+					r_ret = Variant();
+					return;
+				}
+				allow_objects = *p_args[1];
+			}
+
 			if (p_args[0]->get_type() != Variant::POOL_BYTE_ARRAY) {
 				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
-				r_error.argument = 0;
+				r_error.argument = 1;
 				r_error.expected = Variant::POOL_BYTE_ARRAY;
 				r_ret = Variant();
 				return;
@@ -802,7 +870,7 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
 			Variant ret;
 			{
 				PoolByteArray::Read r = varr.read();
-				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL);
+				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL, allow_objects);
 				if (err != OK) {
 					r_ret = RTR("Not enough bytes for decoding bytes, or invalid format.");
 					r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
@@ -1392,10 +1460,12 @@ bool GDScriptFunctions::is_deterministic(Function p_func) {
 		case MATH_ISINF:
 		case MATH_EASE:
 		case MATH_DECIMALS:
+		case MATH_STEP_DECIMALS:
 		case MATH_STEPIFY:
 		case MATH_LERP:
 		case MATH_INVERSE_LERP:
 		case MATH_RANGE_LERP:
+		case MATH_SMOOTHSTEP:
 		case MATH_DECTIME:
 		case MATH_DEG2RAD:
 		case MATH_RAD2DEG:
@@ -1548,6 +1618,16 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
 			mi.return_val.type = Variant::BOOL;
 			return mi;
 		} break;
+		case MATH_ISEQUALAPPROX: {
+			MethodInfo mi("is_equal_approx", PropertyInfo(Variant::REAL, "a"), PropertyInfo(Variant::REAL, "b"));
+			mi.return_val.type = Variant::BOOL;
+			return mi;
+		} break;
+		case MATH_ISZEROAPPROX: {
+			MethodInfo mi("is_zero_approx", PropertyInfo(Variant::REAL, "s"));
+			mi.return_val.type = Variant::BOOL;
+			return mi;
+		} break;
 		case MATH_EASE: {
 			MethodInfo mi("ease", PropertyInfo(Variant::REAL, "s"), PropertyInfo(Variant::REAL, "curve"));
 			mi.return_val.type = Variant::REAL;
@@ -1555,7 +1635,12 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
 		} break;
 		case MATH_DECIMALS: {
 			MethodInfo mi("decimals", PropertyInfo(Variant::REAL, "step"));
-			mi.return_val.type = Variant::REAL;
+			mi.return_val.type = Variant::INT;
+			return mi;
+		} break;
+		case MATH_STEP_DECIMALS: {
+			MethodInfo mi("step_decimals", PropertyInfo(Variant::REAL, "step"));
+			mi.return_val.type = Variant::INT;
 			return mi;
 		} break;
 		case MATH_STEPIFY: {
@@ -1579,6 +1664,11 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
 			mi.return_val.type = Variant::REAL;
 			return mi;
 		} break;
+		case MATH_SMOOTHSTEP: {
+			MethodInfo mi("smoothstep", PropertyInfo(Variant::REAL, "from"), PropertyInfo(Variant::REAL, "to"), PropertyInfo(Variant::REAL, "weight"));
+			mi.return_val.type = Variant::REAL;
+			return mi;
+		} break;
 		case MATH_DECTIME: {
 			MethodInfo mi("dectime", PropertyInfo(Variant::REAL, "value"), PropertyInfo(Variant::REAL, "amount"), PropertyInfo(Variant::REAL, "step"));
 			mi.return_val.type = Variant::REAL;
@@ -1805,13 +1895,15 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
 		} break;
 		case VAR_TO_BYTES: {
 
-			MethodInfo mi("var2bytes", PropertyInfo(Variant::NIL, "var", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_NIL_IS_VARIANT));
+			MethodInfo mi("var2bytes", PropertyInfo(Variant::NIL, "var", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_NIL_IS_VARIANT), PropertyInfo(Variant::BOOL, "full_objects"));
+			mi.default_arguments.push_back(false);
 			mi.return_val.type = Variant::POOL_BYTE_ARRAY;
 			return mi;
 		} break;
 		case BYTES_TO_VAR: {
 
-			MethodInfo mi(Variant::NIL, "bytes2var", PropertyInfo(Variant::POOL_BYTE_ARRAY, "bytes"));
+			MethodInfo mi(Variant::NIL, "bytes2var", PropertyInfo(Variant::POOL_BYTE_ARRAY, "bytes"), PropertyInfo(Variant::BOOL, "allow_objects"));
+			mi.default_arguments.push_back(false);
 			mi.return_val.type = Variant::NIL;
 			mi.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
 			return mi;
diff --git a/modules/gdscript/gdscript_functions.h b/modules/gdscript/gdscript_functions.h
index fcb8f32e54..c594480ff8 100644
--- a/modules/gdscript/gdscript_functions.h
+++ b/modules/gdscript/gdscript_functions.h
@@ -59,12 +59,16 @@ public:
 		MATH_EXP,
 		MATH_ISNAN,
 		MATH_ISINF,
+		MATH_ISEQUALAPPROX,
+		MATH_ISZEROAPPROX,
 		MATH_EASE,
 		MATH_DECIMALS,
+		MATH_STEP_DECIMALS,
 		MATH_STEPIFY,
 		MATH_LERP,
 		MATH_INVERSE_LERP,
 		MATH_RANGE_LERP,
+		MATH_SMOOTHSTEP,
 		MATH_DECTIME,
 		MATH_RANDOMIZE,
 		MATH_RAND,
diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp
index da69181a43..903b3892d1 100644
--- a/modules/gdscript/gdscript_parser.cpp
+++ b/modules/gdscript/gdscript_parser.cpp
@@ -282,7 +282,6 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s
 
 				switch (tokenizer->get_token()) {
 					case GDScriptTokenizer::TK_CURSOR: {
-						completion_cursor = StringName();
 						completion_type = COMPLETION_GET_NODE;
 						completion_class = current_class;
 						completion_function = current_function;
@@ -777,7 +776,8 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s
 								}
 								_add_warning(GDScriptWarning::UNASSIGNED_VARIABLE_OP_ASSIGN, -1, identifier.operator String());
 							}
-						} // fallthrough
+							FALLTHROUGH;
+						}
 						case GDScriptTokenizer::TK_OP_ASSIGN: {
 							lv->assignments += 1;
 							lv->usages--; // Assignment is not really usage
@@ -887,7 +887,8 @@ GDScriptParser::Node *GDScriptParser::_parse_expression(Node *p_parent, bool p_s
 				case GDScriptTokenizer::TK_OP_SUB: e.op = OperatorNode::OP_NEG; break;
 				case GDScriptTokenizer::TK_OP_NOT: e.op = OperatorNode::OP_NOT; break;
 				case GDScriptTokenizer::TK_OP_BIT_INVERT: e.op = OperatorNode::OP_BIT_INVERT; break;
-				default: {}
+				default: {
+				}
 			}
 
 			tokenizer->advance();
@@ -1874,7 +1875,9 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to
 					}
 
 				} break;
-				default: { break; }
+				default: {
+					break;
+				}
 			}
 			//now se if all are constants
 			if (!all_constants)
@@ -1987,7 +1990,9 @@ GDScriptParser::Node *GDScriptParser::_reduce_expression(Node *p_node, bool p_to
 						return op->arguments[2];
 					}
 				} break;
-				default: { ERR_FAIL_V(op); }
+				default: {
+					ERR_FAIL_V(op);
+				}
 			}
 
 			ERR_FAIL_V(op);
@@ -2225,6 +2230,8 @@ GDScriptParser::PatternNode *GDScriptParser::_parse_pattern(bool p_static) {
 void GDScriptParser::_parse_pattern_block(BlockNode *p_block, Vector<PatternBranchNode *> &p_branches, bool p_static) {
 	int indent_level = tab_level.back()->get();
 
+	p_block->has_return = true;
+
 	while (true) {
 
 		while (tokenizer->get_token() == GDScriptTokenizer::TK_NEWLINE && _parse_newline())
@@ -2282,8 +2289,8 @@ void GDScriptParser::_parse_pattern_block(BlockNode *p_block, Vector<PatternBran
 
 		current_block = p_block;
 
-		if (catch_all && branch->body->has_return) {
-			p_block->has_return = true;
+		if (!branch->body->has_return) {
+			p_block->has_return = false;
 		}
 
 		p_branches.push_back(branch);
@@ -2862,8 +2869,6 @@ void GDScriptParser::_parse_block(BlockNode *p_block, bool p_static) {
 				lv->assign_op = op;
 				lv->assign = assigned;
 
-				lv->assign_op = op;
-
 				if (!_end_statement()) {
 					_set_error("Expected end of statement (var)");
 					return;
@@ -3492,6 +3497,10 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 					_set_error("'class_name' is only valid for the main class namespace.");
 					return;
 				}
+				if (self_path.empty()) {
+					_set_error("'class_name' not allowed in built-in scripts.");
+					return;
+				}
 				if (tokenizer->get_token(1) != GDScriptTokenizer::TK_IDENTIFIER) {
 
 					_set_error("'class_name' syntax: 'class_name <UniqueName>'");
@@ -3634,7 +3643,8 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 					return;
 				}
 
-			}; //fallthrough to function
+				FALLTHROUGH;
+			}
 			case GDScriptTokenizer::TK_PR_FUNCTION: {
 
 				bool _static = false;
@@ -3677,6 +3687,11 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 						_add_warning(GDScriptWarning::FUNCTION_CONFLICTS_VARIABLE, -1, name);
 					}
 				}
+				for (int i = 0; i < p_class->subclasses.size(); i++) {
+					if (p_class->subclasses[i]->name == name) {
+						_add_warning(GDScriptWarning::FUNCTION_CONFLICTS_CONSTANT, -1, name);
+					}
+				}
 #endif // DEBUG_ENABLED
 
 				if (tokenizer->get_token() != GDScriptTokenizer::TK_PARENTHESIS_OPEN) {
@@ -4084,7 +4099,8 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 										break;
 									}
 
-								}; //fallthrough to use the same
+									FALLTHROUGH;
+								}
 								case Variant::REAL: {
 
 									if (tokenizer->get_token() == GDScriptTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier() == "EASE") {
@@ -4509,6 +4525,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 #ifdef DEBUG_ENABLED
 				_add_warning(GDScriptWarning::DEPRECATED_KEYWORD, tokenizer->get_token_line(), "slave", "puppet");
 #endif
+				FALLTHROUGH;
 			case GDScriptTokenizer::TK_PR_PUPPET: {
 
 				//may be fallthrough from export, ignore if so
@@ -4576,7 +4593,7 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 				continue;
 			} break;
 			case GDScriptTokenizer::TK_PR_VAR: {
-				//variale declaration and (eventual) initialization
+				// variable declaration and (eventual) initialization
 
 				ClassNode::Member member;
 
@@ -4619,6 +4636,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 						return;
 					}
 				}
+
+				for (int i = 0; i < current_class->subclasses.size(); i++) {
+					if (current_class->subclasses[i]->name == member.identifier) {
+						_set_error("A class named '" + String(member.identifier) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+						return;
+					}
+				}
 #ifdef DEBUG_ENABLED
 				for (int i = 0; i < current_class->functions.size(); i++) {
 					if (current_class->functions[i]->name == member.identifier) {
@@ -4758,19 +4782,30 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 						return;
 					}
 
-					if (member._export.type != Variant::NIL) {
+					Variant::Type initial_type = member.data_type.has_type ? member.data_type.builtin_type : member._export.type;
+
+					if (initial_type != Variant::NIL && initial_type != Variant::OBJECT) {
 						IdentifierNode *id = alloc_node<IdentifierNode>();
 						id->name = member.identifier;
 
-						ConstantNode *cn = alloc_node<ConstantNode>();
+						Node *expr;
 
-						Variant::CallError ce2;
-						cn->value = Variant::construct(member._export.type, NULL, 0, ce2);
+						// Make sure arrays and dictionaries are not shared
+						if (initial_type == Variant::ARRAY) {
+							expr = alloc_node<ArrayNode>();
+						} else if (initial_type == Variant::DICTIONARY) {
+							expr = alloc_node<DictionaryNode>();
+						} else {
+							ConstantNode *cn = alloc_node<ConstantNode>();
+							Variant::CallError ce2;
+							cn->value = Variant::construct(initial_type, NULL, 0, ce2);
+							expr = cn;
+						}
 
 						OperatorNode *op = alloc_node<OperatorNode>();
 						op->op = OperatorNode::OP_INIT_ASSIGN;
 						op->arguments.push_back(id);
-						op->arguments.push_back(cn);
+						op->arguments.push_back(expr);
 
 						p_class->initializer->statements.push_back(op);
 
@@ -4863,6 +4898,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 					}
 				}
 
+				for (int i = 0; i < current_class->subclasses.size(); i++) {
+					if (current_class->subclasses[i]->name == const_id) {
+						_set_error("A class named '" + String(const_id) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+						return;
+					}
+				}
+
 				tokenizer->advance();
 
 				if (tokenizer->get_token() == GDScriptTokenizer::TK_COLON) {
@@ -4933,6 +4975,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 						}
 					}
 
+					for (int i = 0; i < current_class->subclasses.size(); i++) {
+						if (current_class->subclasses[i]->name == enum_name) {
+							_set_error("A class named '" + String(enum_name) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+							return;
+						}
+					}
+
 					tokenizer->advance();
 				}
 				if (tokenizer->get_token() != GDScriptTokenizer::TK_CURLY_BRACKET_OPEN) {
@@ -5018,6 +5067,13 @@ void GDScriptParser::_parse_class(ClassNode *p_class) {
 								}
 							}
 
+							for (int i = 0; i < current_class->subclasses.size(); i++) {
+								if (current_class->subclasses[i]->name == const_id) {
+									_set_error("A class named '" + String(const_id) + "' already exists in this class (at line " + itos(current_class->subclasses[i]->line) + ").");
+									return;
+								}
+							}
+
 							ClassNode::Constant constant;
 							constant.type.has_type = true;
 							constant.type.kind = DataType::BUILTIN;
@@ -5288,7 +5344,8 @@ String GDScriptParser::DataType::to_string() const {
 			if (!gds_class.empty()) {
 				return gds_class;
 			}
-		} // fallthrough
+			FALLTHROUGH;
+		}
 		case SCRIPT: {
 			if (is_meta_type) {
 				return script_type->get_class_name().operator String();
@@ -6177,8 +6234,8 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) {
 						return DataType();
 					}
 #ifdef DEBUG_ENABLED
-					if (var_op == Variant::OP_DIVIDE && argument_a_type.has_type && argument_a_type.kind == DataType::BUILTIN && argument_a_type.builtin_type == Variant::INT &&
-							argument_b_type.has_type && argument_b_type.kind == DataType::BUILTIN && argument_b_type.builtin_type == Variant::INT) {
+					if (var_op == Variant::OP_DIVIDE && argument_a_type.kind == DataType::BUILTIN && argument_a_type.builtin_type == Variant::INT &&
+							argument_b_type.kind == DataType::BUILTIN && argument_b_type.builtin_type == Variant::INT) {
 						_add_warning(GDScriptWarning::INTEGER_DIVISION, op->line);
 					}
 #endif // DEBUG_ENABLED
@@ -6344,7 +6401,8 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) {
 									case Variant::COLOR: {
 										error = index_type.builtin_type != Variant::INT && index_type.builtin_type != Variant::STRING;
 									} break;
-									default: {}
+									default: {
+									}
 								}
 							}
 							if (error) {
@@ -6462,7 +6520,8 @@ GDScriptParser::DataType GDScriptParser::_reduce_node_type(Node *p_node) {
 				}
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	p_node->set_datatype(_resolve_type(node_type, p_node->line));
@@ -6887,10 +6946,8 @@ GDScriptParser::DataType GDScriptParser::_reduce_function_call_type(const Operat
 
 #ifdef DEBUG_ENABLED
 			if (current_function && !for_completion && !is_static && p_call->arguments[0]->type == Node::TYPE_SELF && current_function->_static) {
-				if (current_function && current_function->_static && p_call->arguments[0]->type == Node::TYPE_SELF) {
-					_set_error("Can't call non-static function from a static function.", p_call->line);
-					return DataType();
-				}
+				_set_error("Can't call non-static function from a static function.", p_call->line);
+				return DataType();
 			}
 
 			if (check_types && !is_static && !is_initializer && base_type.is_meta_type) {
@@ -7445,30 +7502,6 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) {
 				v.data_type = expr_type;
 				v.data_type.is_constant = false;
 			}
-		} else if (v.data_type.has_type && v.data_type.kind == DataType::BUILTIN) {
-			// Create default value based on the type
-			IdentifierNode *id = alloc_node<IdentifierNode>();
-			id->line = v.line;
-			id->name = v.identifier;
-
-			ConstantNode *init = alloc_node<ConstantNode>();
-			init->line = v.line;
-			Variant::CallError err;
-			init->value = Variant::construct(v.data_type.builtin_type, NULL, 0, err);
-
-			OperatorNode *op = alloc_node<OperatorNode>();
-			op->line = v.line;
-			op->op = OperatorNode::OP_INIT_ASSIGN;
-			op->arguments.push_back(id);
-			op->arguments.push_back(init);
-
-			p_class->initializer->statements.push_front(op);
-			v.initial_assignment = op;
-#ifdef DEBUG_ENABLED
-			NewLineNode *nl = alloc_node<NewLineNode>();
-			nl->line = v.line - 1;
-			p_class->initializer->statements.push_front(nl);
-#endif
 		}
 
 		// Check export hint
@@ -7607,6 +7640,11 @@ void GDScriptParser::_check_function_types(FunctionNode *p_function) {
 		if (p_function->arguments_usage[i] == 0 && !p_function->arguments[i].operator String().begins_with("_")) {
 			_add_warning(GDScriptWarning::UNUSED_ARGUMENT, p_function->line, p_function->name, p_function->arguments[i].operator String());
 		}
+		for (int j = 0; j < current_class->variables.size(); j++) {
+			if (current_class->variables[j].identifier == p_function->arguments[i]) {
+				_add_warning(GDScriptWarning::SHADOWED_VARIABLE, p_function->line, p_function->arguments[i], itos(current_class->variables[j].line));
+			}
+		}
 #endif // DEBUG_ENABLED
 	}
 
@@ -7680,6 +7718,17 @@ void GDScriptParser::_check_function_types(FunctionNode *p_function) {
 		p_function->return_type.has_type = false;
 		p_function->return_type.may_yield = true;
 	}
+
+#ifdef DEBUG_ENABLED
+	for (Map<StringName, LocalVarNode *>::Element *E = p_function->body->variables.front(); E; E = E->next()) {
+		LocalVarNode *lv = E->get();
+		for (int i = 0; i < current_class->variables.size(); i++) {
+			if (current_class->variables[i].identifier == lv->name) {
+				_add_warning(GDScriptWarning::SHADOWED_VARIABLE, lv->line, lv->name, itos(current_class->variables[i].line));
+			}
+		}
+	}
+#endif // DEBUG_ENABLED
 }
 
 void GDScriptParser::_check_class_blocks_types(ClassNode *p_class) {
@@ -8044,7 +8093,8 @@ void GDScriptParser::_check_block_types(BlockNode *p_block) {
 				if (cn->value.get_type() == Variant::STRING) {
 					break;
 				}
-			} // falthrough
+				FALLTHROUGH;
+			}
 			default: {
 				_mark_line_as_safe(statement->line);
 				_reduce_node_type(statement); // Test for safety anyway
diff --git a/modules/gdscript/gdscript_tokenizer.cpp b/modules/gdscript/gdscript_tokenizer.cpp
index 8b22d6f085..b8048fb5dd 100644
--- a/modules/gdscript/gdscript_tokenizer.cpp
+++ b/modules/gdscript/gdscript_tokenizer.cpp
@@ -339,7 +339,8 @@ StringName GDScriptTokenizer::get_token_literal(int p_offset) const {
 					return "null";
 				case Variant::BOOL:
 					return value ? "true" : "false";
-				default: {}
+				default: {
+				}
 			}
 		}
 		case TK_OP_AND:
@@ -534,13 +535,14 @@ void GDScriptTokenizerText::_advance() {
 					}
 				}
 #ifdef DEBUG_ENABLED
-				if (comment.begins_with("#warning-ignore:")) {
-					String code = comment.get_slice(":", 1);
+				String comment_content = comment.trim_prefix("#").trim_prefix(" ");
+				if (comment_content.begins_with("warning-ignore:")) {
+					String code = comment_content.get_slice(":", 1);
 					warning_skips.push_back(Pair<int, String>(line, code.strip_edges().to_lower()));
-				} else if (comment.begins_with("#warning-ignore-all:")) {
-					String code = comment.get_slice(":", 1);
+				} else if (comment_content.begins_with("warning-ignore-all:")) {
+					String code = comment_content.get_slice(":", 1);
 					warning_global_skips.insert(code.strip_edges().to_lower());
-				} else if (comment.strip_edges() == "#warnings-disable") {
+				} else if (comment_content.strip_edges() == "warnings-disable") {
 					ignore_warnings = true;
 				}
 #endif // DEBUG_ENABLED
@@ -744,7 +746,7 @@ void GDScriptTokenizerText::_advance() {
 				}
 				INCPOS(1);
 				is_node_path = true;
-
+				FALLTHROUGH;
 			case '\'':
 			case '"': {
 
@@ -894,7 +896,7 @@ void GDScriptTokenizerText::_advance() {
 							}
 							hexa_found = true;
 						} else if (!hexa_found && GETCHAR(i) == 'e') {
-							if (hexa_found || exponent_found) {
+							if (exponent_found) {
 								_make_error("Invalid numeric constant at 'e'");
 								return;
 							}
@@ -1199,7 +1201,8 @@ Error GDScriptTokenizerBuffer::set_code_buffer(const Vector<uint8_t> &p_buffer)
 
 		Variant v;
 		int len;
-		Error err = decode_variant(v, b, total_len, &len);
+		// An object cannot be constant, never decode objects
+		Error err = decode_variant(v, b, total_len, &len, false);
 		if (err)
 			return err;
 		b += len;
@@ -1301,7 +1304,8 @@ Vector<uint8_t> GDScriptTokenizerBuffer::parse_code_string(const String &p_code)
 
 				ERR_FAIL_V(Vector<uint8_t>());
 			} break;
-			default: {}
+			default: {
+			}
 		};
 
 		token_array.push_back(token);
@@ -1367,11 +1371,12 @@ Vector<uint8_t> GDScriptTokenizerBuffer::parse_code_string(const String &p_code)
 	for (Map<int, Variant>::Element *E = rev_constant_map.front(); E; E = E->next()) {
 
 		int len;
-		Error err = encode_variant(E->get(), NULL, len);
+		// Objects cannot be constant, never encode objects
+		Error err = encode_variant(E->get(), NULL, len, false);
 		ERR_FAIL_COND_V(err != OK, Vector<uint8_t>());
 		int pos = buf.size();
 		buf.resize(pos + len);
-		encode_variant(E->get(), &buf.write[pos], len);
+		encode_variant(E->get(), &buf.write[pos], len, false);
 	}
 
 	for (Map<int, uint32_t>::Element *E = rev_line_map.front(); E; E = E->next()) {
diff --git a/modules/gridmap/doc_classes/GridMap.xml b/modules/gridmap/doc_classes/GridMap.xml
index 2ea116d79b..f8f9fc1af9 100644
--- a/modules/gridmap/doc_classes/GridMap.xml
+++ b/modules/gridmap/doc_classes/GridMap.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GridMap" inherits="Spatial" category="Core" version="3.1">
+<class name="GridMap" inherits="Spatial" category="Core" version="3.2">
 	<brief_description>
 		Node for 3D tile-based maps.
 	</brief_description>
@@ -12,8 +12,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/tutorials/3d/using_gridmaps.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
diff --git a/modules/gridmap/grid_map_editor_plugin.cpp b/modules/gridmap/grid_map_editor_plugin.cpp
index 17eb6f674c..657aa1f9ce 100644
--- a/modules/gridmap/grid_map_editor_plugin.cpp
+++ b/modules/gridmap/grid_map_editor_plugin.cpp
@@ -67,9 +67,6 @@ void GridMapEditor::_menu_option(int p_option) {
 			floor->set_value(floor->get_value() + 1);
 		} break;
 
-		case MENU_OPTION_CONFIGURE: {
-
-		} break;
 		case MENU_OPTION_LOCK_VIEW: {
 
 			int index = options->get_popup()->get_item_index(MENU_OPTION_LOCK_VIEW);
@@ -121,14 +118,15 @@ void GridMapEditor::_menu_option(int p_option) {
 		case MENU_OPTION_CURSOR_ROTATE_Y: {
 
 			Basis r;
-			if (input_action == INPUT_DUPLICATE) {
+			if (input_action == INPUT_PASTE) {
 
-				r.set_orthogonal_index(selection.duplicate_rot);
+				r.set_orthogonal_index(paste_indicator.orientation);
 				r.rotate(Vector3(0, 1, 0), -Math_PI / 2.0);
-				selection.duplicate_rot = r.get_orthogonal_index();
-				_update_duplicate_indicator();
+				paste_indicator.orientation = r.get_orthogonal_index();
+				_update_paste_indicator();
 				break;
 			}
+
 			r.set_orthogonal_index(cursor_rot);
 			r.rotate(Vector3(0, 1, 0), -Math_PI / 2.0);
 			cursor_rot = r.get_orthogonal_index();
@@ -137,12 +135,12 @@ void GridMapEditor::_menu_option(int p_option) {
 		case MENU_OPTION_CURSOR_ROTATE_X: {
 
 			Basis r;
-			if (input_action == INPUT_DUPLICATE) {
+			if (input_action == INPUT_PASTE) {
 
-				r.set_orthogonal_index(selection.duplicate_rot);
+				r.set_orthogonal_index(paste_indicator.orientation);
 				r.rotate(Vector3(1, 0, 0), -Math_PI / 2.0);
-				selection.duplicate_rot = r.get_orthogonal_index();
-				_update_duplicate_indicator();
+				paste_indicator.orientation = r.get_orthogonal_index();
+				_update_paste_indicator();
 				break;
 			}
 
@@ -154,12 +152,12 @@ void GridMapEditor::_menu_option(int p_option) {
 		case MENU_OPTION_CURSOR_ROTATE_Z: {
 
 			Basis r;
-			if (input_action == INPUT_DUPLICATE) {
+			if (input_action == INPUT_PASTE) {
 
-				r.set_orthogonal_index(selection.duplicate_rot);
+				r.set_orthogonal_index(paste_indicator.orientation);
 				r.rotate(Vector3(0, 0, 1), -Math_PI / 2.0);
-				selection.duplicate_rot = r.get_orthogonal_index();
-				_update_duplicate_indicator();
+				paste_indicator.orientation = r.get_orthogonal_index();
+				_update_paste_indicator();
 				break;
 			}
 
@@ -171,6 +169,15 @@ void GridMapEditor::_menu_option(int p_option) {
 		case MENU_OPTION_CURSOR_BACK_ROTATE_Y: {
 
 			Basis r;
+			if (input_action == INPUT_PASTE) {
+
+				r.set_orthogonal_index(paste_indicator.orientation);
+				r.rotate(Vector3(0, 1, 0), Math_PI / 2.0);
+				paste_indicator.orientation = r.get_orthogonal_index();
+				_update_paste_indicator();
+				break;
+			}
+
 			r.set_orthogonal_index(cursor_rot);
 			r.rotate(Vector3(0, 1, 0), Math_PI / 2.0);
 			cursor_rot = r.get_orthogonal_index();
@@ -179,6 +186,15 @@ void GridMapEditor::_menu_option(int p_option) {
 		case MENU_OPTION_CURSOR_BACK_ROTATE_X: {
 
 			Basis r;
+			if (input_action == INPUT_PASTE) {
+
+				r.set_orthogonal_index(paste_indicator.orientation);
+				r.rotate(Vector3(1, 0, 0), Math_PI / 2.0);
+				paste_indicator.orientation = r.get_orthogonal_index();
+				_update_paste_indicator();
+				break;
+			}
+
 			r.set_orthogonal_index(cursor_rot);
 			r.rotate(Vector3(1, 0, 0), Math_PI / 2.0);
 			cursor_rot = r.get_orthogonal_index();
@@ -187,6 +203,15 @@ void GridMapEditor::_menu_option(int p_option) {
 		case MENU_OPTION_CURSOR_BACK_ROTATE_Z: {
 
 			Basis r;
+			if (input_action == INPUT_PASTE) {
+
+				r.set_orthogonal_index(paste_indicator.orientation);
+				r.rotate(Vector3(0, 0, 1), Math_PI / 2.0);
+				paste_indicator.orientation = r.get_orthogonal_index();
+				_update_paste_indicator();
+				break;
+			}
+
 			r.set_orthogonal_index(cursor_rot);
 			r.rotate(Vector3(0, 0, 1), Math_PI / 2.0);
 			cursor_rot = r.get_orthogonal_index();
@@ -194,10 +219,10 @@ void GridMapEditor::_menu_option(int p_option) {
 		} break;
 		case MENU_OPTION_CURSOR_CLEAR_ROTATION: {
 
-			if (input_action == INPUT_DUPLICATE) {
+			if (input_action == INPUT_PASTE) {
 
-				selection.duplicate_rot = 0;
-				_update_duplicate_indicator();
+				paste_indicator.orientation = 0;
+				_update_paste_indicator();
 				break;
 			}
 
@@ -205,28 +230,33 @@ void GridMapEditor::_menu_option(int p_option) {
 			_update_cursor_transform();
 		} break;
 
-		case MENU_OPTION_DUPLICATE_SELECTS: {
-			int idx = options->get_popup()->get_item_index(MENU_OPTION_DUPLICATE_SELECTS);
+		case MENU_OPTION_PASTE_SELECTS: {
+			int idx = options->get_popup()->get_item_index(MENU_OPTION_PASTE_SELECTS);
 			options->get_popup()->set_item_checked(idx, !options->get_popup()->is_item_checked(idx));
 		} break;
-		case MENU_OPTION_SELECTION_DUPLICATE:
+
+		case MENU_OPTION_SELECTION_DUPLICATE: // fallthrough
+		case MENU_OPTION_SELECTION_CUT: {
 			if (!(selection.active && input_action == INPUT_NONE))
-				return;
-			if (last_mouseover == Vector3(-1, -1, -1)) //nono mouseovering anythin
 				break;
 
-			last_mouseover = selection.begin;
-			VS::get_singleton()->instance_set_transform(grid_instance[edit_axis], Transform(Basis(), grid_ofs));
+			_set_clipboard_data();
 
-			input_action = INPUT_DUPLICATE;
-			selection.click = last_mouseover;
-			selection.current = last_mouseover;
-			selection.duplicate_rot = 0;
-			_update_duplicate_indicator();
-			break;
+			if (p_option == MENU_OPTION_SELECTION_CUT) {
+				_delete_selection();
+			}
+
+			input_action = INPUT_PASTE;
+			paste_indicator.click = selection.begin;
+			paste_indicator.current = selection.begin;
+			paste_indicator.begin = selection.begin;
+			paste_indicator.end = selection.end;
+			paste_indicator.orientation = 0;
+			_update_paste_indicator();
+		} break;
 		case MENU_OPTION_SELECTION_CLEAR: {
 			if (!selection.active)
-				return;
+				break;
 
 			_delete_selection();
 
@@ -315,17 +345,28 @@ void GridMapEditor::_validate_selection() {
 	_update_selection_transform();
 }
 
+void GridMapEditor::_set_selection(bool p_active, const Vector3 p_begin, const Vector3 p_end) {
+
+	selection.active = p_active;
+	selection.begin = p_begin;
+	selection.end = p_end;
+	selection.click = p_begin;
+	selection.current = p_end;
+
+	_update_selection_transform();
+}
+
 bool GridMapEditor::do_input_action(Camera *p_camera, const Point2 &p_point, bool p_click) {
 
 	if (!spatial_editor)
 		return false;
 
-	if (selected_palette < 0 && input_action != INPUT_COPY && input_action != INPUT_SELECT && input_action != INPUT_DUPLICATE)
+	if (selected_palette < 0 && input_action != INPUT_PICK && input_action != INPUT_SELECT && input_action != INPUT_PASTE)
 		return false;
 	Ref<MeshLibrary> mesh_library = node->get_mesh_library();
 	if (mesh_library.is_null())
 		return false;
-	if (input_action != INPUT_COPY && input_action != INPUT_SELECT && input_action != INPUT_DUPLICATE && !mesh_library->has_item(selected_palette))
+	if (input_action != INPUT_PICK && input_action != INPUT_SELECT && input_action != INPUT_PASTE && !mesh_library->has_item(selected_palette))
 		return false;
 
 	Camera *camera = p_camera;
@@ -386,13 +427,17 @@ bool GridMapEditor::do_input_action(Camera *p_camera, const Point2 &p_point, boo
 		cursor_origin = (Vector3(cell[0], cell[1], cell[2]) + Vector3(0.5 * node->get_center_x(), 0.5 * node->get_center_y(), 0.5 * node->get_center_z())) * node->get_cell_size();
 		cursor_visible = true;
 
+		if (input_action == INPUT_SELECT || input_action == INPUT_PASTE) {
+			cursor_visible = false;
+		}
+
 		_update_cursor_transform();
 	}
 
-	if (input_action == INPUT_DUPLICATE) {
+	if (input_action == INPUT_PASTE) {
 
-		selection.current = Vector3(cell[0], cell[1], cell[2]);
-		_update_duplicate_indicator();
+		paste_indicator.current = Vector3(cell[0], cell[1], cell[2]);
+		_update_paste_indicator();
 
 	} else if (input_action == INPUT_SELECT) {
 
@@ -403,7 +448,7 @@ bool GridMapEditor::do_input_action(Camera *p_camera, const Point2 &p_point, boo
 		_validate_selection();
 
 		return true;
-	} else if (input_action == INPUT_COPY) {
+	} else if (input_action == INPUT_PICK) {
 
 		int item = node->get_cell_item(cell[0], cell[1], cell[2]);
 		if (item >= 0) {
@@ -456,10 +501,9 @@ void GridMapEditor::_delete_selection() {
 			}
 		}
 	}
+	undo_redo->add_do_method(this, "_set_selection", !selection.active, selection.begin, selection.end);
+	undo_redo->add_undo_method(this, "_set_selection", selection.active, selection.begin, selection.end);
 	undo_redo->commit_action();
-
-	selection.active = false;
-	_validate_selection();
 }
 
 void GridMapEditor::_fill_selection() {
@@ -479,97 +523,124 @@ void GridMapEditor::_fill_selection() {
 			}
 		}
 	}
+	undo_redo->add_do_method(this, "_set_selection", !selection.active, selection.begin, selection.end);
+	undo_redo->add_undo_method(this, "_set_selection", selection.active, selection.begin, selection.end);
 	undo_redo->commit_action();
+}
 
-	selection.active = false;
-	_validate_selection();
+void GridMapEditor::_clear_clipboard_data() {
+
+	for (List<ClipboardItem>::Element *E = clipboard_items.front(); E; E = E->next()) {
+
+		VisualServer::get_singleton()->free(E->get().instance);
+	}
+
+	clipboard_items.clear();
 }
 
-void GridMapEditor::_update_duplicate_indicator() {
+void GridMapEditor::_set_clipboard_data() {
 
-	if (!selection.active || input_action != INPUT_DUPLICATE) {
+	_clear_clipboard_data();
+
+	Ref<MeshLibrary> meshLibrary = node->get_mesh_library();
+
+	for (int i = selection.begin.x; i <= selection.end.x; i++) {
+
+		for (int j = selection.begin.y; j <= selection.end.y; j++) {
+
+			for (int k = selection.begin.z; k <= selection.end.z; k++) {
+
+				int itm = node->get_cell_item(i, j, k);
+				if (itm == GridMap::INVALID_CELL_ITEM)
+					continue;
+
+				Ref<Mesh> mesh = meshLibrary->get_item_mesh(itm);
+
+				ClipboardItem item;
+				item.cell_item = itm;
+				item.grid_offset = Vector3(i, j, k) - selection.begin;
+				item.orientation = node->get_cell_item_orientation(i, j, k);
+				item.instance = VisualServer::get_singleton()->instance_create2(mesh->get_rid(), get_tree()->get_root()->get_world()->get_scenario());
+
+				clipboard_items.push_back(item);
+			}
+		}
+	}
+}
+
+void GridMapEditor::_update_paste_indicator() {
+
+	if (input_action != INPUT_PASTE) {
 
 		Transform xf;
 		xf.basis.set_zero();
-		VisualServer::get_singleton()->instance_set_transform(duplicate_instance, xf);
+		VisualServer::get_singleton()->instance_set_transform(paste_instance, xf);
 		return;
 	}
 
+	Vector3 center = 0.5 * Vector3(node->get_center_x(), node->get_center_y(), node->get_center_z());
+	Vector3 scale = (Vector3(1, 1, 1) + (paste_indicator.end - paste_indicator.begin)) * node->get_cell_size();
 	Transform xf;
-	xf.scale(Vector3(1, 1, 1) * (Vector3(1, 1, 1) + (selection.end - selection.begin)) * node->get_cell_size());
-	xf.origin = (selection.begin + (selection.current - selection.click)) * node->get_cell_size();
+	xf.scale(scale);
+	xf.origin = (paste_indicator.begin + (paste_indicator.current - paste_indicator.click) + center) * node->get_cell_size();
 	Basis rot;
-	rot.set_orthogonal_index(selection.duplicate_rot);
+	rot.set_orthogonal_index(paste_indicator.orientation);
 	xf.basis = rot * xf.basis;
+	xf.translate((-center * node->get_cell_size()) / scale);
 
-	VisualServer::get_singleton()->instance_set_transform(duplicate_instance, node->get_global_transform() * xf);
-}
+	VisualServer::get_singleton()->instance_set_transform(paste_instance, node->get_global_transform() * xf);
 
-struct __Item {
-	Vector3 pos;
-	int rot;
-	int item;
-};
-void GridMapEditor::_duplicate_paste() {
+	for (List<ClipboardItem>::Element *E = clipboard_items.front(); E; E = E->next()) {
 
-	if (!selection.active)
-		return;
+		ClipboardItem &item = E->get();
 
-	int idx = options->get_popup()->get_item_index(MENU_OPTION_DUPLICATE_SELECTS);
-	bool reselect = options->get_popup()->is_item_checked(idx);
+		xf = Transform();
+		xf.origin = (paste_indicator.begin + (paste_indicator.current - paste_indicator.click) + center) * node->get_cell_size();
+		xf.basis = rot * xf.basis;
+		xf.translate(item.grid_offset * node->get_cell_size());
+
+		Basis item_rot;
+		item_rot.set_orthogonal_index(item.orientation);
+		xf.basis = item_rot * xf.basis;
+
+		VisualServer::get_singleton()->instance_set_transform(item.instance, node->get_global_transform() * xf);
+	}
+}
 
-	List<__Item> items;
+void GridMapEditor::_do_paste() {
+
+	int idx = options->get_popup()->get_item_index(MENU_OPTION_PASTE_SELECTS);
+	bool reselect = options->get_popup()->is_item_checked(idx);
 
 	Basis rot;
-	rot.set_orthogonal_index(selection.duplicate_rot);
+	rot.set_orthogonal_index(paste_indicator.orientation);
 
-	for (int i = selection.begin.x; i <= selection.end.x; i++) {
+	Vector3 ofs = paste_indicator.current - paste_indicator.click;
+	undo_redo->create_action(TTR("GridMap Paste Selection"));
 
-		for (int j = selection.begin.y; j <= selection.end.y; j++) {
+	for (List<ClipboardItem>::Element *E = clipboard_items.front(); E; E = E->next()) {
 
-			for (int k = selection.begin.z; k <= selection.end.z; k++) {
+		ClipboardItem &item = E->get();
 
-				int itm = node->get_cell_item(i, j, k);
-				if (itm == GridMap::INVALID_CELL_ITEM)
-					continue;
-				int orientation = node->get_cell_item_orientation(i, j, k);
-				__Item item;
-				Vector3 rel = Vector3(i, j, k) - selection.begin;
-				rel = rot.xform(rel);
-
-				Basis orm;
-				orm.set_orthogonal_index(orientation);
-				orm = rot * orm;
-
-				item.pos = selection.begin + rel;
-				item.item = itm;
-				item.rot = orm.get_orthogonal_index();
-				items.push_back(item);
-			}
-		}
-	}
+		Vector3 pos = rot.xform(item.grid_offset) + paste_indicator.begin + ofs;
 
-	Vector3 ofs = selection.current - selection.click;
-	if (items.size()) {
-		undo_redo->create_action(TTR("GridMap Duplicate Selection"));
-		for (List<__Item>::Element *E = items.front(); E; E = E->next()) {
-			__Item &it = E->get();
-			Vector3 pos = it.pos + ofs;
+		Basis orm;
+		orm.set_orthogonal_index(item.orientation);
+		orm = rot * orm;
 
-			undo_redo->add_do_method(node, "set_cell_item", pos.x, pos.y, pos.z, it.item, it.rot);
-			undo_redo->add_undo_method(node, "set_cell_item", pos.x, pos.y, pos.z, node->get_cell_item(pos.x, pos.y, pos.z), node->get_cell_item_orientation(pos.x, pos.y, pos.z));
-		}
-		undo_redo->commit_action();
+		undo_redo->add_do_method(node, "set_cell_item", pos.x, pos.y, pos.z, item.cell_item, orm.get_orthogonal_index());
+		undo_redo->add_undo_method(node, "set_cell_item", pos.x, pos.y, pos.z, node->get_cell_item(pos.x, pos.y, pos.z), node->get_cell_item_orientation(pos.x, pos.y, pos.z));
 	}
 
 	if (reselect) {
 
-		selection.begin += ofs;
-		selection.end += ofs;
-		selection.click = selection.begin;
-		selection.current = selection.end;
-		_validate_selection();
+		undo_redo->add_do_method(this, "_set_selection", true, paste_indicator.begin + ofs, paste_indicator.end + ofs);
+		undo_redo->add_undo_method(this, "_set_selection", selection.active, selection.begin, selection.end);
 	}
+
+	undo_redo->commit_action();
+
+	_clear_clipboard_data();
 }
 
 bool GridMapEditor::forward_spatial_input_event(Camera *p_camera, const Ref<InputEvent> &p_event) {
@@ -596,28 +667,31 @@ bool GridMapEditor::forward_spatial_input_event(Camera *p_camera, const Ref<Inpu
 
 			if (mb->get_button_index() == BUTTON_LEFT) {
 
-				if (input_action == INPUT_DUPLICATE) {
-					//paste
-					_duplicate_paste();
+				if (input_action == INPUT_PASTE) {
+					_do_paste();
 					input_action = INPUT_NONE;
-					_update_duplicate_indicator();
+					_update_paste_indicator();
 				} else if (mb->get_shift()) {
 					input_action = INPUT_SELECT;
+					last_selection = selection;
 				} else if (mb->get_command()) {
-					input_action = INPUT_COPY;
+					input_action = INPUT_PICK;
 				} else {
 					input_action = INPUT_PAINT;
 					set_items.clear();
 				}
 			} else if (mb->get_button_index() == BUTTON_RIGHT) {
-				if (input_action == INPUT_DUPLICATE) {
+				if (input_action == INPUT_PASTE) {
+					_clear_clipboard_data();
 					input_action = INPUT_NONE;
-					_update_duplicate_indicator();
-				} else if (mb->get_shift()) {
+					_update_paste_indicator();
+					return true;
+				} else if (selection.active) {
+					_set_selection(false);
+					return true;
+				} else {
 					input_action = INPUT_ERASE;
 					set_items.clear();
-				} else {
-					return false;
 				}
 			} else {
 				return false;
@@ -650,13 +724,21 @@ bool GridMapEditor::forward_spatial_input_event(Camera *p_camera, const Ref<Inpu
 				return set_items.size() > 0;
 			}
 
+			if (mb->get_button_index() == BUTTON_LEFT && input_action == INPUT_SELECT) {
+
+				undo_redo->create_action("GridMap Selection");
+				undo_redo->add_do_method(this, "_set_selection", selection.active, selection.begin, selection.end);
+				undo_redo->add_undo_method(this, "_set_selection", last_selection.active, last_selection.begin, last_selection.end);
+				undo_redo->commit_action();
+			}
+
 			if (mb->get_button_index() == BUTTON_LEFT && input_action != INPUT_NONE) {
 
 				set_items.clear();
 				input_action = INPUT_NONE;
 				return true;
 			}
-			if (mb->get_button_index() == BUTTON_RIGHT && (input_action == INPUT_ERASE || input_action == INPUT_DUPLICATE)) {
+			if (mb->get_button_index() == BUTTON_RIGHT && (input_action == INPUT_ERASE || input_action == INPUT_PASTE)) {
 				input_action = INPUT_NONE;
 				return true;
 			}
@@ -670,6 +752,45 @@ bool GridMapEditor::forward_spatial_input_event(Camera *p_camera, const Ref<Inpu
 		return do_input_action(p_camera, mm->get_position(), false);
 	}
 
+	Ref<InputEventKey> k = p_event;
+
+	if (k.is_valid()) {
+		if (k->is_pressed()) {
+			if (k->get_scancode() == KEY_ESCAPE) {
+
+				if (input_action == INPUT_PASTE) {
+					_clear_clipboard_data();
+					input_action = INPUT_NONE;
+					_update_paste_indicator();
+					return true;
+				} else if (selection.active) {
+					_set_selection(false);
+					return true;
+				} else {
+					selected_palette = -1;
+					mesh_library_palette->unselect_all();
+					update_palette();
+					_update_cursor_instance();
+					return true;
+				}
+			}
+
+			if (k->get_shift() && selection.active && input_action != INPUT_PASTE) {
+
+				if (k->get_scancode() == options->get_popup()->get_item_accelerator(options->get_popup()->get_item_index(MENU_OPTION_PREV_LEVEL))) {
+					selection.click[edit_axis]--;
+					_validate_selection();
+					return true;
+				}
+				if (k->get_scancode() == options->get_popup()->get_item_accelerator(options->get_popup()->get_item_index(MENU_OPTION_NEXT_LEVEL))) {
+					selection.click[edit_axis]++;
+					_validate_selection();
+					return true;
+				}
+			}
+		}
+	}
+
 	Ref<InputEventPanGesture> pan_gesture = p_event;
 	if (pan_gesture.is_valid()) {
 
@@ -818,7 +939,7 @@ void GridMapEditor::edit(GridMap *p_gridmap) {
 	input_action = INPUT_NONE;
 	selection.active = false;
 	_update_selection_transform();
-	_update_duplicate_indicator();
+	_update_paste_indicator();
 
 	spatial_editor = Object::cast_to<SpatialEditorPlugin>(editor->get_editor_plugin_screen());
 
@@ -953,13 +1074,15 @@ void GridMapEditor::_notification(int p_what) {
 			}
 
 			selection_instance = VisualServer::get_singleton()->instance_create2(selection_mesh, get_tree()->get_root()->get_world()->get_scenario());
-			duplicate_instance = VisualServer::get_singleton()->instance_create2(duplicate_mesh, get_tree()->get_root()->get_world()->get_scenario());
+			paste_instance = VisualServer::get_singleton()->instance_create2(paste_mesh, get_tree()->get_root()->get_world()->get_scenario());
 
 			_update_selection_transform();
-			_update_duplicate_indicator();
+			_update_paste_indicator();
 		} break;
 
 		case NOTIFICATION_EXIT_TREE: {
+			_clear_clipboard_data();
+
 			for (int i = 0; i < 3; i++) {
 
 				VS::get_singleton()->free(grid_instance[i]);
@@ -970,9 +1093,9 @@ void GridMapEditor::_notification(int p_what) {
 			}
 
 			VisualServer::get_singleton()->free(selection_instance);
-			VisualServer::get_singleton()->free(duplicate_instance);
+			VisualServer::get_singleton()->free(paste_instance);
 			selection_instance = RID();
-			duplicate_instance = RID();
+			paste_instance = RID();
 		} break;
 
 		case NOTIFICATION_PROCESS: {
@@ -1065,6 +1188,7 @@ void GridMapEditor::_bind_methods() {
 	ClassDB::bind_method("_configure", &GridMapEditor::_configure);
 	ClassDB::bind_method("_item_selected_cbk", &GridMapEditor::_item_selected_cbk);
 	ClassDB::bind_method("_floor_changed", &GridMapEditor::_floor_changed);
+	ClassDB::bind_method("_set_selection", &GridMapEditor::_set_selection);
 
 	ClassDB::bind_method(D_METHOD("_set_display_mode", "mode"), &GridMapEditor::_set_display_mode);
 }
@@ -1128,15 +1252,12 @@ GridMapEditor::GridMapEditor(EditorNode *p_editor) {
 	options->get_popup()->add_item(TTR("Cursor Back Rotate Z"), MENU_OPTION_CURSOR_BACK_ROTATE_Z, KEY_MASK_SHIFT + KEY_D);
 	options->get_popup()->add_item(TTR("Cursor Clear Rotation"), MENU_OPTION_CURSOR_CLEAR_ROTATION, KEY_W);
 	options->get_popup()->add_separator();
-	options->get_popup()->add_check_item("Duplicate Selects", MENU_OPTION_DUPLICATE_SELECTS);
-	options->get_popup()->add_separator();
-	options->get_popup()->add_item(TTR("Create Area"), MENU_OPTION_SELECTION_MAKE_AREA, KEY_CONTROL + KEY_C);
-	options->get_popup()->add_item(TTR("Create Exterior Connector"), MENU_OPTION_SELECTION_MAKE_EXTERIOR_CONNECTOR);
-	options->get_popup()->add_item(TTR("Erase Area"), MENU_OPTION_REMOVE_AREA);
+	options->get_popup()->add_check_item("Paste Selects", MENU_OPTION_PASTE_SELECTS);
 	options->get_popup()->add_separator();
-	options->get_popup()->add_item(TTR("Duplicate Selection"), MENU_OPTION_SELECTION_DUPLICATE, KEY_MASK_SHIFT + KEY_C);
-	options->get_popup()->add_item(TTR("Clear Selection"), MENU_OPTION_SELECTION_CLEAR, KEY_MASK_SHIFT + KEY_X);
-	options->get_popup()->add_item(TTR("Fill Selection"), MENU_OPTION_SELECTION_FILL, KEY_MASK_SHIFT + KEY_F);
+	options->get_popup()->add_item(TTR("Duplicate Selection"), MENU_OPTION_SELECTION_DUPLICATE, KEY_MASK_CTRL + KEY_C);
+	options->get_popup()->add_item(TTR("Cut Selection"), MENU_OPTION_SELECTION_CUT, KEY_MASK_CTRL + KEY_X);
+	options->get_popup()->add_item(TTR("Clear Selection"), MENU_OPTION_SELECTION_CLEAR, KEY_DELETE);
+	options->get_popup()->add_item(TTR("Fill Selection"), MENU_OPTION_SELECTION_FILL, KEY_MASK_CTRL + KEY_F);
 
 	options->get_popup()->add_separator();
 	options->get_popup()->add_item(TTR("Settings"), MENU_OPTION_GRIDMAP_SETTINGS);
@@ -1211,7 +1332,7 @@ GridMapEditor::GridMapEditor(EditorNode *p_editor) {
 	last_mouseover = Vector3(-1, -1, -1);
 
 	selection_mesh = VisualServer::get_singleton()->mesh_create();
-	duplicate_mesh = VisualServer::get_singleton()->mesh_create();
+	paste_mesh = VisualServer::get_singleton()->mesh_create();
 
 	{
 		//selection mesh create
@@ -1319,12 +1440,12 @@ GridMapEditor::GridMapEditor(EditorNode *p_editor) {
 		VisualServer::get_singleton()->mesh_surface_set_material(selection_mesh, 1, outer_mat->get_rid());
 
 		d[VS::ARRAY_VERTEX] = triangles;
-		VisualServer::get_singleton()->mesh_add_surface_from_arrays(duplicate_mesh, VS::PRIMITIVE_TRIANGLES, d);
-		VisualServer::get_singleton()->mesh_surface_set_material(duplicate_mesh, 0, inner_mat->get_rid());
+		VisualServer::get_singleton()->mesh_add_surface_from_arrays(paste_mesh, VS::PRIMITIVE_TRIANGLES, d);
+		VisualServer::get_singleton()->mesh_surface_set_material(paste_mesh, 0, inner_mat->get_rid());
 
 		d[VS::ARRAY_VERTEX] = lines;
-		VisualServer::get_singleton()->mesh_add_surface_from_arrays(duplicate_mesh, VS::PRIMITIVE_LINES, d);
-		VisualServer::get_singleton()->mesh_surface_set_material(duplicate_mesh, 1, outer_mat->get_rid());
+		VisualServer::get_singleton()->mesh_add_surface_from_arrays(paste_mesh, VS::PRIMITIVE_LINES, d);
+		VisualServer::get_singleton()->mesh_surface_set_material(paste_mesh, 1, outer_mat->get_rid());
 
 		for (int i = 0; i < 3; i++) {
 			d[VS::ARRAY_VERTEX] = square[i];
@@ -1341,6 +1462,8 @@ GridMapEditor::GridMapEditor(EditorNode *p_editor) {
 
 GridMapEditor::~GridMapEditor() {
 
+	_clear_clipboard_data();
+
 	for (int i = 0; i < 3; i++) {
 
 		if (grid[i].is_valid())
@@ -1359,9 +1482,9 @@ GridMapEditor::~GridMapEditor() {
 	if (selection_instance.is_valid())
 		VisualServer::get_singleton()->free(selection_instance);
 
-	VisualServer::get_singleton()->free(duplicate_mesh);
-	if (duplicate_instance.is_valid())
-		VisualServer::get_singleton()->free(duplicate_instance);
+	VisualServer::get_singleton()->free(paste_mesh);
+	if (paste_instance.is_valid())
+		VisualServer::get_singleton()->free(paste_instance);
 }
 
 void GridMapEditorPlugin::_notification(int p_what) {
diff --git a/modules/gridmap/grid_map_editor_plugin.h b/modules/gridmap/grid_map_editor_plugin.h
index 59b8ac13da..8e1948ea7d 100644
--- a/modules/gridmap/grid_map_editor_plugin.h
+++ b/modules/gridmap/grid_map_editor_plugin.h
@@ -54,9 +54,9 @@ class GridMapEditor : public VBoxContainer {
 		INPUT_NONE,
 		INPUT_PAINT,
 		INPUT_ERASE,
-		INPUT_COPY,
+		INPUT_PICK,
 		INPUT_SELECT,
-		INPUT_DUPLICATE,
+		INPUT_PASTE,
 	};
 
 	enum ClipMode {
@@ -116,8 +116,17 @@ class GridMapEditor : public VBoxContainer {
 	RID selection_instance;
 	RID selection_level_mesh[3];
 	RID selection_level_instance[3];
-	RID duplicate_mesh;
-	RID duplicate_instance;
+	RID paste_mesh;
+	RID paste_instance;
+
+	struct ClipboardItem {
+		int cell_item;
+		Vector3 grid_offset;
+		int orientation;
+		RID instance;
+	};
+
+	List<ClipboardItem> clipboard_items;
 
 	Ref<SpatialMaterial> indicator_mat;
 	Ref<SpatialMaterial> inner_mat;
@@ -132,9 +141,19 @@ class GridMapEditor : public VBoxContainer {
 		Vector3 current;
 		Vector3 begin;
 		Vector3 end;
-		int duplicate_rot;
 		bool active;
 	} selection;
+	Selection last_selection;
+
+	struct PasteIndicator {
+
+		Vector3 click;
+		Vector3 current;
+		Vector3 begin;
+		Vector3 end;
+		int orientation;
+	};
+	PasteIndicator paste_indicator;
 
 	bool cursor_visible;
 	Transform cursor_transform;
@@ -148,7 +167,6 @@ class GridMapEditor : public VBoxContainer {
 
 	enum Menu {
 
-		MENU_OPTION_CONFIGURE,
 		MENU_OPTION_NEXT_LEVEL,
 		MENU_OPTION_PREV_LEVEL,
 		MENU_OPTION_LOCK_VIEW,
@@ -165,13 +183,11 @@ class GridMapEditor : public VBoxContainer {
 		MENU_OPTION_CURSOR_BACK_ROTATE_X,
 		MENU_OPTION_CURSOR_BACK_ROTATE_Z,
 		MENU_OPTION_CURSOR_CLEAR_ROTATION,
-		MENU_OPTION_DUPLICATE_SELECTS,
-		MENU_OPTION_SELECTION_MAKE_AREA,
-		MENU_OPTION_SELECTION_MAKE_EXTERIOR_CONNECTOR,
+		MENU_OPTION_PASTE_SELECTS,
 		MENU_OPTION_SELECTION_DUPLICATE,
+		MENU_OPTION_SELECTION_CUT,
 		MENU_OPTION_SELECTION_CLEAR,
 		MENU_OPTION_SELECTION_FILL,
-		MENU_OPTION_REMOVE_AREA,
 		MENU_OPTION_GRIDMAP_SETTINGS
 
 	};
@@ -200,10 +216,13 @@ class GridMapEditor : public VBoxContainer {
 
 	void _icon_size_changed(float p_value);
 
-	void _update_duplicate_indicator();
-	void _duplicate_paste();
+	void _clear_clipboard_data();
+	void _set_clipboard_data();
+	void _update_paste_indicator();
+	void _do_paste();
 	void _update_selection_transform();
 	void _validate_selection();
+	void _set_selection(bool p_active, const Vector3 p_begin = Vector3(), const Vector3 p_end = Vector3());
 
 	void _floor_changed(float p_value);
 
diff --git a/modules/jpg/SCsub b/modules/jpg/SCsub
index d5f87905eb..96e8e704dd 100644
--- a/modules/jpg/SCsub
+++ b/modules/jpg/SCsub
@@ -13,7 +13,7 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_jpg.Append(CPPPATH=[thirdparty_dir])
+env_jpg.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_jpg.Clone()
 env_thirdparty.disable_warnings()
diff --git a/modules/mobile_vr/doc_classes/MobileVRInterface.xml b/modules/mobile_vr/doc_classes/MobileVRInterface.xml
index 359d654433..8876bcbe9d 100644
--- a/modules/mobile_vr/doc_classes/MobileVRInterface.xml
+++ b/modules/mobile_vr/doc_classes/MobileVRInterface.xml
@@ -1,16 +1,20 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="MobileVRInterface" inherits="ARVRInterface" category="Core" version="3.1">
+<class name="MobileVRInterface" inherits="ARVRInterface" category="Core" version="3.2">
 	<brief_description>
 		Generic mobile VR implementation
 	</brief_description>
 	<description>
 		This is a generic mobile VR implementation where you need to provide details about the phone and HMD used. It does not rely on any existing framework. This is the most basic interface we have. For the best effect you do need a mobile phone with a gyroscope and accelerometer.
-		Note that even though there is no positional tracking the camera will assume the headset is at a height of 1.85 meters.
+		Note that even though there is no positional tracking the camera will assume the headset is at a height of 1.85 meters, you can change this by setting [member eye_height].
+		You can initialise this interface as follows:
+		[codeblock]
+		var interface = ARVRServer.find_interface("Native mobile")
+		if interface and interface.initialize():
+		    get_viewport().arvr = true
+		[/codeblock]
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -20,6 +24,9 @@
 		<member name="display_width" type="float" setter="set_display_width" getter="get_display_width">
 			The width of the display in centimeters.
 		</member>
+		<member name="eye_height" type="float" setter="set_eye_height" getter="get_eye_height">
+			The height at which the camera is placed in relation to the ground (i.e. [ARVROrigin] node).
+		</member>
 		<member name="iod" type="float" setter="set_iod" getter="get_iod">
 			The interocular distance, also known as the interpupillary distance. The distance between the pupils of the left and right eye.
 		</member>
diff --git a/modules/mobile_vr/mobile_vr_interface.cpp b/modules/mobile_vr/mobile_vr_interface.cpp
index b4fbd417d7..fe107d3683 100644
--- a/modules/mobile_vr/mobile_vr_interface.cpp
+++ b/modules/mobile_vr/mobile_vr_interface.cpp
@@ -200,6 +200,9 @@ void MobileVRInterface::set_position_from_sensors() {
 };
 
 void MobileVRInterface::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_eye_height", "eye_height"), &MobileVRInterface::set_eye_height);
+	ClassDB::bind_method(D_METHOD("get_eye_height"), &MobileVRInterface::get_eye_height);
+
 	ClassDB::bind_method(D_METHOD("set_iod", "iod"), &MobileVRInterface::set_iod);
 	ClassDB::bind_method(D_METHOD("get_iod"), &MobileVRInterface::get_iod);
 
@@ -218,6 +221,7 @@ void MobileVRInterface::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_k2", "k"), &MobileVRInterface::set_k2);
 	ClassDB::bind_method(D_METHOD("get_k2"), &MobileVRInterface::get_k2);
 
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "eye_height", PROPERTY_HINT_RANGE, "0.0,3.0,0.1"), "set_eye_height", "get_eye_height");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "iod", PROPERTY_HINT_RANGE, "4.0,10.0,0.1"), "set_iod", "get_iod");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "display_width", PROPERTY_HINT_RANGE, "5.0,25.0,0.1"), "set_display_width", "get_display_width");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "display_to_lens", PROPERTY_HINT_RANGE, "5.0,25.0,0.1"), "set_display_to_lens", "get_display_to_lens");
@@ -226,6 +230,14 @@ void MobileVRInterface::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "k2", PROPERTY_HINT_RANGE, "0.1,10.0,0.0001"), "set_k2", "get_k2");
 }
 
+void MobileVRInterface::set_eye_height(const real_t p_eye_height) {
+	eye_height = p_eye_height;
+}
+
+real_t MobileVRInterface::get_eye_height() const {
+	return eye_height;
+}
+
 void MobileVRInterface::set_iod(const real_t p_iod) {
 	intraocular_dist = p_iod;
 };
@@ -328,6 +340,7 @@ Size2 MobileVRInterface::get_render_targetsize() {
 
 	// we use half our window size
 	Size2 target_size = OS::get_singleton()->get_window_size();
+
 	target_size.x *= 0.5 * oversample;
 	target_size.y *= oversample;
 
@@ -427,6 +440,12 @@ void MobileVRInterface::process() {
 	};
 };
 
+void MobileVRInterface::notification(int p_what){
+	_THREAD_SAFE_METHOD_
+
+	// nothing to do here, I guess we could pauze our sensors...
+}
+
 MobileVRInterface::MobileVRInterface() {
 	initialized = false;
 
diff --git a/modules/mobile_vr/mobile_vr_interface.h b/modules/mobile_vr/mobile_vr_interface.h
index adc420ea5f..7fa51eecb7 100644
--- a/modules/mobile_vr/mobile_vr_interface.h
+++ b/modules/mobile_vr/mobile_vr_interface.h
@@ -107,6 +107,9 @@ protected:
 	static void _bind_methods();
 
 public:
+	void set_eye_height(const real_t p_eye_height);
+	real_t get_eye_height() const;
+
 	void set_iod(const real_t p_iod);
 	real_t get_iod() const;
 
@@ -139,6 +142,7 @@ public:
 	virtual void commit_for_eye(ARVRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect);
 
 	virtual void process();
+	virtual void notification(int p_what);
 
 	MobileVRInterface();
 	~MobileVRInterface();
diff --git a/modules/mono/SCsub b/modules/mono/SCsub
index 706949154e..341d57f3e4 100644
--- a/modules/mono/SCsub
+++ b/modules/mono/SCsub
@@ -5,70 +5,6 @@ Import('env_modules')
 
 env_mono = env_modules.Clone()
 
-# TODO move functions to their own modules
-
-def make_cs_files_header(src, dst, version_dst):
-    from compat import byte_to_str
-
-    with open(dst, 'w') as header:
-        header.write('/* THIS FILE IS GENERATED DO NOT EDIT */\n')
-        header.write('#ifndef CS_COMPRESSED_H\n')
-        header.write('#define CS_COMPRESSED_H\n\n')
-        header.write('#ifdef TOOLS_ENABLED\n\n')
-        header.write('#include "core/map.h"\n')
-        header.write('#include "core/ustring.h"\n')
-        inserted_files = ''
-        import os
-        latest_mtime = 0
-        cs_file_count = 0
-        for root, _, files in os.walk(src):
-            files = [f for f in files if f.endswith('.cs')]
-            for file in files:
-                cs_file_count += 1
-                filepath = os.path.join(root, file)
-                filepath_src_rel = os.path.relpath(filepath, src)
-                mtime = os.path.getmtime(filepath)
-                latest_mtime = mtime if mtime > latest_mtime else latest_mtime
-                with open(filepath, 'rb') as f:
-                    buf = f.read()
-                    decomp_size = len(buf)
-                    import zlib
-                    buf = zlib.compress(buf)
-                    name = str(cs_file_count)
-                    header.write('\n')
-                    header.write('// ' + filepath_src_rel + '\n')
-                    header.write('static const int _cs_' + name + '_compressed_size = ' + str(len(buf)) + ';\n')
-                    header.write('static const int _cs_' + name + '_uncompressed_size = ' + str(decomp_size) + ';\n')
-                    header.write('static const unsigned char _cs_' + name + '_compressed[] = { ')
-                    for i, buf_idx in enumerate(range(len(buf))):
-                        if i > 0:
-                            header.write(', ')
-                        header.write(byte_to_str(buf[buf_idx]))
-                    inserted_files += '\tr_files.insert("' + filepath_src_rel.replace('\\', '\\\\') + '", ' \
-                                        'CompressedFile(_cs_' + name + '_compressed_size, ' \
-                                        '_cs_' + name + '_uncompressed_size, ' \
-                                        '_cs_' + name + '_compressed));\n'
-                    header.write(' };\n')
-        header.write('\nstruct CompressedFile\n' '{\n'
-            '\tint compressed_size;\n' '\tint uncompressed_size;\n' '\tconst unsigned char* data;\n'
-            '\n\tCompressedFile(int p_comp_size, int p_uncomp_size, const unsigned char* p_data)\n'
-            '\t{\n' '\t\tcompressed_size = p_comp_size;\n' '\t\tuncompressed_size = p_uncomp_size;\n'
-            '\t\tdata = p_data;\n' '\t}\n' '\n\tCompressedFile() {}\n' '};\n'
-            '\nvoid get_compressed_files(Map<String, CompressedFile>& r_files)\n' '{\n' + inserted_files + '}\n'
-            )
-        header.write('\n#endif // TOOLS_ENABLED\n')
-        header.write('\n#endif // CS_COMPRESSED_H\n')
-
-        glue_version = int(latest_mtime) # The latest modified time will do for now
-
-        with open(version_dst, 'w') as version_header:
-            version_header.write('/* THIS FILE IS GENERATED DO NOT EDIT */\n')
-            version_header.write('#ifndef CS_GLUE_VERSION_H\n')
-            version_header.write('#define CS_GLUE_VERSION_H\n\n')
-            version_header.write('#define CS_GLUE_VERSION UINT32_C(' + str(glue_version) + ')\n')
-            version_header.write('\n#endif // CS_GLUE_VERSION_H\n')
-
-
 env_mono.add_source_files(env.modules_sources, '*.cpp')
 env_mono.add_source_files(env.modules_sources, 'glue/*.cpp')
 env_mono.add_source_files(env.modules_sources, 'mono_gd/*.cpp')
@@ -77,7 +13,12 @@ env_mono.add_source_files(env.modules_sources, 'utils/*.cpp')
 if env['tools']:
     env_mono.add_source_files(env.modules_sources, 'editor/*.cpp')
     # NOTE: It is safe to generate this file here, since this is still executed serially
-    make_cs_files_header('glue/Managed/Files', 'glue/cs_compressed.gen.h', 'glue/cs_glue_version.gen.h')
+    import build_scripts.make_cs_compressed_header as make_cs_compressed_header
+    make_cs_compressed_header.generate_header(
+        'glue/Managed/Files',
+        'glue/cs_compressed.gen.h',
+        'glue/cs_glue_version.gen.h'
+    )
 
 vars = Variables()
 vars.Add(BoolVariable('mono_glue', 'Build with the mono glue sources', True))
@@ -88,273 +29,29 @@ vars.Update(env_mono)
 if env_mono['mono_glue']:
     env_mono.Append(CPPDEFINES=['MONO_GLUE_ENABLED'])
 
+    import os.path
+    if not os.path.isfile('glue/mono_glue.gen.cpp'):
+        raise RuntimeError('Missing mono glue sources. Did you forget to generate them?')
+
 if env_mono['tools'] or env_mono['target'] != 'release':
     env_mono.Append(CPPDEFINES=['GD_MONO_HOT_RELOAD'])
 
-# Configure TLS checks
+# Configure Thread Local Storage
+
+import build_scripts.tls_configure as tls_configure
 
-import tls_configure
 conf = Configure(env_mono)
 tls_configure.configure(conf)
 env_mono = conf.Finish()
 
+# Configure Mono
 
-# Build GodotSharpTools solution
-
-
-import os
-
-
-def find_nuget_unix():
-    import os
-
-    if 'NUGET_PATH' in os.environ:
-        hint_path = os.environ['NUGET_PATH']
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-        hint_path = os.path.join(hint_path, 'nuget')
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-
-    import os.path
-    import sys
-
-    hint_dirs = ['/opt/novell/mono/bin']
-    if sys.platform == 'darwin':
-        hint_dirs = ['/Library/Frameworks/Mono.framework/Versions/Current/bin', '/usr/local/var/homebrew/linked/mono/bin'] + hint_dirs
-
-    for hint_dir in hint_dirs:
-        hint_path = os.path.join(hint_dir, 'nuget')
-        if os.path.isfile(hint_path):
-            return hint_path
-        elif os.path.isfile(hint_path + '.exe'):
-            return hint_path + '.exe'
-
-    for hint_dir in os.environ['PATH'].split(os.pathsep):
-        hint_dir = hint_dir.strip('"')
-        hint_path = os.path.join(hint_dir, 'nuget')
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-        if os.path.isfile(hint_path + '.exe') and os.access(hint_path + '.exe', os.X_OK):
-            return hint_path + '.exe'
-
-    return None
-
-
-def find_nuget_windows():
-    import os
-
-    if 'NUGET_PATH' in os.environ:
-        hint_path = os.environ['NUGET_PATH']
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-        hint_path = os.path.join(hint_path, 'nuget.exe')
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-
-    import mono_reg_utils as monoreg
-
-    mono_root = ''
-    bits = env['bits']
-
-    if bits == '32':
-        if os.getenv('MONO32_PREFIX'):
-            mono_root = os.getenv('MONO32_PREFIX')
-        else:
-            mono_root = monoreg.find_mono_root_dir(bits)
-    else:
-        if os.getenv('MONO64_PREFIX'):
-            mono_root = os.getenv('MONO64_PREFIX')
-        else:
-            mono_root = monoreg.find_mono_root_dir(bits)
-
-    if mono_root:
-        mono_bin_dir = os.path.join(mono_root, 'bin')
-        nuget_mono = os.path.join(mono_bin_dir, 'nuget.bat')
-
-        if os.path.isfile(nuget_mono):
-            return nuget_mono
-
-    # Standalone NuGet
-
-    for hint_dir in os.environ['PATH'].split(os.pathsep):
-        hint_dir = hint_dir.strip('"')
-        hint_path = os.path.join(hint_dir, 'nuget.exe')
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-
-    return None
-
-
-def find_msbuild_unix(filename):
-    import os.path
-    import sys
-
-    hint_dirs = ['/opt/novell/mono/bin']
-    if sys.platform == 'darwin':
-        hint_dirs = ['/Library/Frameworks/Mono.framework/Versions/Current/bin', '/usr/local/var/homebrew/linked/mono/bin'] + hint_dirs
-
-    for hint_dir in hint_dirs:
-        hint_path = os.path.join(hint_dir, filename)
-        if os.path.isfile(hint_path):
-            return hint_path
-        elif os.path.isfile(hint_path + '.exe'):
-            return hint_path + '.exe'
+import build_scripts.mono_configure as mono_configure
 
-    for hint_dir in os.environ['PATH'].split(os.pathsep):
-        hint_dir = hint_dir.strip('"')
-        hint_path = os.path.join(hint_dir, filename)
-        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
-            return hint_path
-        if os.path.isfile(hint_path + '.exe') and os.access(hint_path + '.exe', os.X_OK):
-            return hint_path + '.exe'
+mono_configure.configure(env, env_mono)
 
-    return None
+# Build GodotSharpTools
 
+import build_scripts.godotsharptools_build as godotsharptools_build
 
-def find_msbuild_windows():
-    import mono_reg_utils as monoreg
-
-    mono_root = ''
-    bits = env['bits']
-
-    if bits == '32':
-        if os.getenv('MONO32_PREFIX'):
-            mono_root = os.getenv('MONO32_PREFIX')
-        else:
-            mono_root = monoreg.find_mono_root_dir(bits)
-    else:
-        if os.getenv('MONO64_PREFIX'):
-            mono_root = os.getenv('MONO64_PREFIX')
-        else:
-            mono_root = monoreg.find_mono_root_dir(bits)
-
-    if not mono_root:
-        raise RuntimeError('Cannot find mono root directory')
-
-    framework_path = os.path.join(mono_root, 'lib', 'mono', '4.5')
-    mono_bin_dir = os.path.join(mono_root, 'bin')
-    msbuild_mono = os.path.join(mono_bin_dir, 'msbuild.bat')
-
-    if os.path.isfile(msbuild_mono):
-        # The (Csc/Vbc/Fsc)ToolExe environment variables are required when
-        # building with Mono's MSBuild. They must point to the batch files
-        # in Mono's bin directory to make sure they are executed with Mono.
-        mono_msbuild_env = {
-            'CscToolExe': os.path.join(mono_bin_dir, 'csc.bat'),
-            'VbcToolExe': os.path.join(mono_bin_dir, 'vbc.bat'),
-            'FscToolExe': os.path.join(mono_bin_dir, 'fsharpc.bat')
-        }
-        return (msbuild_mono, framework_path, mono_msbuild_env)
-
-    msbuild_tools_path = monoreg.find_msbuild_tools_path_reg()
-
-    if msbuild_tools_path:
-        return (os.path.join(msbuild_tools_path, 'MSBuild.exe'), framework_path, {})
-
-    return None
-
-
-def mono_build_solution(source, target, env):
-    import subprocess
-    import mono_reg_utils as monoreg
-    from shutil import copyfile
-
-    sln_path = os.path.abspath(str(source[0]))
-    target_path = os.path.abspath(str(target[0]))
-
-    framework_path = ''
-    msbuild_env = os.environ.copy()
-
-    # Needed when running from Developer Command Prompt for VS
-    if 'PLATFORM' in msbuild_env:
-        del msbuild_env['PLATFORM']
-
-    # Find MSBuild
-    if os.name == 'nt':
-        msbuild_info = find_msbuild_windows()
-        if msbuild_info is None:
-            raise RuntimeError('Cannot find MSBuild executable')
-        msbuild_path = msbuild_info[0]
-        framework_path = msbuild_info[1]
-        msbuild_env.update(msbuild_info[2])
-    else:
-        msbuild_path = find_msbuild_unix('msbuild')
-        if msbuild_path is None:
-            xbuild_fallback = env['xbuild_fallback']
-
-            if xbuild_fallback and os.name == 'nt':
-                print('Option \'xbuild_fallback\' not supported on Windows')
-                xbuild_fallback = False
-
-            if xbuild_fallback:
-                print('Cannot find MSBuild executable, trying with xbuild')
-                print('Warning: xbuild is deprecated')
-
-                msbuild_path = find_msbuild_unix('xbuild')
-
-                if msbuild_path is None:
-                    raise RuntimeError('Cannot find xbuild executable')
-            else:
-                raise RuntimeError('Cannot find MSBuild executable')
-
-    print('MSBuild path: ' + msbuild_path)
-
-    # Find NuGet
-    nuget_path = find_nuget_windows() if os.name == 'nt' else find_nuget_unix()
-    if nuget_path is None:
-        raise RuntimeError('Cannot find NuGet executable')
-
-    print('NuGet path: ' + nuget_path)
-
-    # Do NuGet restore
-
-    try:
-        subprocess.check_call([nuget_path, 'restore', sln_path])
-    except subprocess.CalledProcessError:
-        raise RuntimeError('GodotSharpTools: NuGet restore failed')
-
-    # Build solution
-
-    build_config = 'Release'
-
-    msbuild_args = [
-        msbuild_path,
-        sln_path,
-        '/p:Configuration=' + build_config,
-    ]
-
-    if framework_path:
-        msbuild_args += ['/p:FrameworkPathOverride=' + framework_path]
-
-    try:
-        subprocess.check_call(msbuild_args, env=msbuild_env)
-    except subprocess.CalledProcessError:
-        raise RuntimeError('GodotSharpTools: Build failed')
-
-    # Copy files
-
-    src_dir = os.path.abspath(os.path.join(sln_path, os.pardir, 'bin', build_config))
-    dst_dir = os.path.abspath(os.path.join(target_path, os.pardir))
-    asm_file = 'GodotSharpTools.dll'
-
-    if not os.path.isdir(dst_dir):
-        if os.path.exists(dst_dir):
-            raise RuntimeError('Target directory is a file')
-        os.makedirs(dst_dir)
-
-    copyfile(os.path.join(src_dir, asm_file), os.path.join(dst_dir, asm_file))
-
-    # Dependencies
-    copyfile(os.path.join(src_dir, "DotNet.Glob.dll"), os.path.join(dst_dir, "DotNet.Glob.dll"))
-
-if env['tools']:
-    output_dir = Dir('#bin').abspath
-    editor_tools_dir = os.path.join(output_dir, 'GodotSharp', 'Tools')
-
-    mono_sln_builder = Builder(action=mono_build_solution)
-    env_mono.Append(BUILDERS={'MonoBuildSolution': mono_sln_builder})
-    env_mono.MonoBuildSolution(
-        os.path.join(editor_tools_dir, 'GodotSharpTools.dll'),
-        'editor/GodotSharpTools/GodotSharpTools.sln'
-    )
+godotsharptools_build.build(env_mono)
diff --git a/modules/mono/build_scripts/__init__.py b/modules/mono/build_scripts/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/modules/mono/build_scripts/__init__.py
diff --git a/modules/mono/build_scripts/godotsharptools_build.py b/modules/mono/build_scripts/godotsharptools_build.py
new file mode 100644
index 0000000000..af3a5cb5c6
--- /dev/null
+++ b/modules/mono/build_scripts/godotsharptools_build.py
@@ -0,0 +1,263 @@
+# Build GodotSharpTools solution
+
+
+import os
+
+from SCons.Script import Builder, Dir
+
+
+def find_nuget_unix():
+    import os
+
+    if 'NUGET_PATH' in os.environ:
+        hint_path = os.environ['NUGET_PATH']
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+        hint_path = os.path.join(hint_path, 'nuget')
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+
+    import os.path
+    import sys
+
+    hint_dirs = ['/opt/novell/mono/bin']
+    if sys.platform == 'darwin':
+        hint_dirs = ['/Library/Frameworks/Mono.framework/Versions/Current/bin', '/usr/local/var/homebrew/linked/mono/bin'] + hint_dirs
+
+    for hint_dir in hint_dirs:
+        hint_path = os.path.join(hint_dir, 'nuget')
+        if os.path.isfile(hint_path):
+            return hint_path
+        elif os.path.isfile(hint_path + '.exe'):
+            return hint_path + '.exe'
+
+    for hint_dir in os.environ['PATH'].split(os.pathsep):
+        hint_dir = hint_dir.strip('"')
+        hint_path = os.path.join(hint_dir, 'nuget')
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+        if os.path.isfile(hint_path + '.exe') and os.access(hint_path + '.exe', os.X_OK):
+            return hint_path + '.exe'
+
+    return None
+
+
+def find_nuget_windows(env):
+    import os
+
+    if 'NUGET_PATH' in os.environ:
+        hint_path = os.environ['NUGET_PATH']
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+        hint_path = os.path.join(hint_path, 'nuget.exe')
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+
+    from . import mono_reg_utils as monoreg
+
+    mono_root = ''
+    bits = env['bits']
+
+    if bits == '32':
+        if os.getenv('MONO32_PREFIX'):
+            mono_root = os.getenv('MONO32_PREFIX')
+        else:
+            mono_root = monoreg.find_mono_root_dir(bits)
+    else:
+        if os.getenv('MONO64_PREFIX'):
+            mono_root = os.getenv('MONO64_PREFIX')
+        else:
+            mono_root = monoreg.find_mono_root_dir(bits)
+
+    if mono_root:
+        mono_bin_dir = os.path.join(mono_root, 'bin')
+        nuget_mono = os.path.join(mono_bin_dir, 'nuget.bat')
+
+        if os.path.isfile(nuget_mono):
+            return nuget_mono
+
+    # Standalone NuGet
+
+    for hint_dir in os.environ['PATH'].split(os.pathsep):
+        hint_dir = hint_dir.strip('"')
+        hint_path = os.path.join(hint_dir, 'nuget.exe')
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+
+    return None
+
+
+def find_msbuild_unix(filename):
+    import os.path
+    import sys
+
+    hint_dirs = ['/opt/novell/mono/bin']
+    if sys.platform == 'darwin':
+        hint_dirs = ['/Library/Frameworks/Mono.framework/Versions/Current/bin', '/usr/local/var/homebrew/linked/mono/bin'] + hint_dirs
+
+    for hint_dir in hint_dirs:
+        hint_path = os.path.join(hint_dir, filename)
+        if os.path.isfile(hint_path):
+            return hint_path
+        elif os.path.isfile(hint_path + '.exe'):
+            return hint_path + '.exe'
+
+    for hint_dir in os.environ['PATH'].split(os.pathsep):
+        hint_dir = hint_dir.strip('"')
+        hint_path = os.path.join(hint_dir, filename)
+        if os.path.isfile(hint_path) and os.access(hint_path, os.X_OK):
+            return hint_path
+        if os.path.isfile(hint_path + '.exe') and os.access(hint_path + '.exe', os.X_OK):
+            return hint_path + '.exe'
+
+    return None
+
+
+def find_msbuild_windows(env):
+    from . import mono_reg_utils as monoreg
+
+    mono_root = ''
+    bits = env['bits']
+
+    if bits == '32':
+        if os.getenv('MONO32_PREFIX'):
+            mono_root = os.getenv('MONO32_PREFIX')
+        else:
+            mono_root = monoreg.find_mono_root_dir(bits)
+    else:
+        if os.getenv('MONO64_PREFIX'):
+            mono_root = os.getenv('MONO64_PREFIX')
+        else:
+            mono_root = monoreg.find_mono_root_dir(bits)
+
+    if not mono_root:
+        raise RuntimeError('Cannot find mono root directory')
+
+    framework_path = os.path.join(mono_root, 'lib', 'mono', '4.5')
+    mono_bin_dir = os.path.join(mono_root, 'bin')
+    msbuild_mono = os.path.join(mono_bin_dir, 'msbuild.bat')
+
+    if os.path.isfile(msbuild_mono):
+        # The (Csc/Vbc/Fsc)ToolExe environment variables are required when
+        # building with Mono's MSBuild. They must point to the batch files
+        # in Mono's bin directory to make sure they are executed with Mono.
+        mono_msbuild_env = {
+            'CscToolExe': os.path.join(mono_bin_dir, 'csc.bat'),
+            'VbcToolExe': os.path.join(mono_bin_dir, 'vbc.bat'),
+            'FscToolExe': os.path.join(mono_bin_dir, 'fsharpc.bat')
+        }
+        return (msbuild_mono, framework_path, mono_msbuild_env)
+
+    msbuild_tools_path = monoreg.find_msbuild_tools_path_reg()
+
+    if msbuild_tools_path:
+        return (os.path.join(msbuild_tools_path, 'MSBuild.exe'), framework_path, {})
+
+    return None
+
+
+def mono_build_solution(source, target, env):
+    import subprocess
+    from shutil import copyfile
+
+    sln_path = os.path.abspath(str(source[0]))
+    target_path = os.path.abspath(str(target[0]))
+
+    framework_path = ''
+    msbuild_env = os.environ.copy()
+
+    # Needed when running from Developer Command Prompt for VS
+    if 'PLATFORM' in msbuild_env:
+        del msbuild_env['PLATFORM']
+
+    # Find MSBuild
+    if os.name == 'nt':
+        msbuild_info = find_msbuild_windows(env)
+        if msbuild_info is None:
+            raise RuntimeError('Cannot find MSBuild executable')
+        msbuild_path = msbuild_info[0]
+        framework_path = msbuild_info[1]
+        msbuild_env.update(msbuild_info[2])
+    else:
+        msbuild_path = find_msbuild_unix('msbuild')
+        if msbuild_path is None:
+            xbuild_fallback = env['xbuild_fallback']
+
+            if xbuild_fallback and os.name == 'nt':
+                print('Option \'xbuild_fallback\' not supported on Windows')
+                xbuild_fallback = False
+
+            if xbuild_fallback:
+                print('Cannot find MSBuild executable, trying with xbuild')
+                print('Warning: xbuild is deprecated')
+
+                msbuild_path = find_msbuild_unix('xbuild')
+
+                if msbuild_path is None:
+                    raise RuntimeError('Cannot find xbuild executable')
+            else:
+                raise RuntimeError('Cannot find MSBuild executable')
+
+    print('MSBuild path: ' + msbuild_path)
+
+    # Find NuGet
+    nuget_path = find_nuget_windows(env) if os.name == 'nt' else find_nuget_unix()
+    if nuget_path is None:
+        raise RuntimeError('Cannot find NuGet executable')
+
+    print('NuGet path: ' + nuget_path)
+
+    # Do NuGet restore
+
+    try:
+        subprocess.check_call([nuget_path, 'restore', sln_path])
+    except subprocess.CalledProcessError:
+        raise RuntimeError('GodotSharpTools: NuGet restore failed')
+
+    # Build solution
+
+    build_config = 'Release'
+
+    msbuild_args = [
+        msbuild_path,
+        sln_path,
+        '/p:Configuration=' + build_config,
+    ]
+
+    if framework_path:
+        msbuild_args += ['/p:FrameworkPathOverride=' + framework_path]
+
+    try:
+        subprocess.check_call(msbuild_args, env=msbuild_env)
+    except subprocess.CalledProcessError:
+        raise RuntimeError('GodotSharpTools: Build failed')
+
+    # Copy files
+
+    src_dir = os.path.abspath(os.path.join(sln_path, os.pardir, 'bin', build_config))
+    dst_dir = os.path.abspath(os.path.join(target_path, os.pardir))
+    asm_file = 'GodotSharpTools.dll'
+
+    if not os.path.isdir(dst_dir):
+        if os.path.exists(dst_dir):
+            raise RuntimeError('Target directory is a file')
+        os.makedirs(dst_dir)
+
+    copyfile(os.path.join(src_dir, asm_file), os.path.join(dst_dir, asm_file))
+
+    # Dependencies
+    copyfile(os.path.join(src_dir, "DotNet.Glob.dll"), os.path.join(dst_dir, "DotNet.Glob.dll"))
+
+def build(env_mono):
+    if not env_mono['tools']:
+        return
+
+    output_dir = Dir('#bin').abspath
+    editor_tools_dir = os.path.join(output_dir, 'GodotSharp', 'Tools')
+
+    mono_sln_builder = Builder(action=mono_build_solution)
+    env_mono.Append(BUILDERS={'MonoBuildSolution': mono_sln_builder})
+    env_mono.MonoBuildSolution(
+        os.path.join(editor_tools_dir, 'GodotSharpTools.dll'),
+        'editor/GodotSharpTools/GodotSharpTools.sln'
+    )
diff --git a/modules/mono/build_scripts/make_cs_compressed_header.py b/modules/mono/build_scripts/make_cs_compressed_header.py
new file mode 100644
index 0000000000..1f9177cef8
--- /dev/null
+++ b/modules/mono/build_scripts/make_cs_compressed_header.py
@@ -0,0 +1,61 @@
+
+def generate_header(src, dst, version_dst):
+    from compat import byte_to_str
+
+    with open(dst, 'w') as header:
+        header.write('/* THIS FILE IS GENERATED DO NOT EDIT */\n')
+        header.write('#ifndef CS_COMPRESSED_H\n')
+        header.write('#define CS_COMPRESSED_H\n\n')
+        header.write('#ifdef TOOLS_ENABLED\n\n')
+        header.write('#include "core/map.h"\n')
+        header.write('#include "core/ustring.h"\n')
+        inserted_files = ''
+        import os
+        latest_mtime = 0
+        cs_file_count = 0
+        for root, _, files in os.walk(src):
+            files = [f for f in files if f.endswith('.cs')]
+            for file in files:
+                cs_file_count += 1
+                filepath = os.path.join(root, file)
+                filepath_src_rel = os.path.relpath(filepath, src)
+                mtime = os.path.getmtime(filepath)
+                latest_mtime = mtime if mtime > latest_mtime else latest_mtime
+                with open(filepath, 'rb') as f:
+                    buf = f.read()
+                    decomp_size = len(buf)
+                    import zlib
+                    buf = zlib.compress(buf)
+                    name = str(cs_file_count)
+                    header.write('\n')
+                    header.write('// ' + filepath_src_rel + '\n')
+                    header.write('static const int _cs_' + name + '_compressed_size = ' + str(len(buf)) + ';\n')
+                    header.write('static const int _cs_' + name + '_uncompressed_size = ' + str(decomp_size) + ';\n')
+                    header.write('static const unsigned char _cs_' + name + '_compressed[] = { ')
+                    for i, buf_idx in enumerate(range(len(buf))):
+                        if i > 0:
+                            header.write(', ')
+                        header.write(byte_to_str(buf[buf_idx]))
+                    inserted_files += '\tr_files.insert("' + filepath_src_rel.replace('\\', '\\\\') + '", ' \
+                                        'CompressedFile(_cs_' + name + '_compressed_size, ' \
+                                        '_cs_' + name + '_uncompressed_size, ' \
+                                        '_cs_' + name + '_compressed));\n'
+                    header.write(' };\n')
+        header.write('\nstruct CompressedFile\n' '{\n'
+            '\tint compressed_size;\n' '\tint uncompressed_size;\n' '\tconst unsigned char* data;\n'
+            '\n\tCompressedFile(int p_comp_size, int p_uncomp_size, const unsigned char* p_data)\n'
+            '\t{\n' '\t\tcompressed_size = p_comp_size;\n' '\t\tuncompressed_size = p_uncomp_size;\n'
+            '\t\tdata = p_data;\n' '\t}\n' '\n\tCompressedFile() {}\n' '};\n'
+            '\nvoid get_compressed_files(Map<String, CompressedFile>& r_files)\n' '{\n' + inserted_files + '}\n'
+            )
+        header.write('\n#endif // TOOLS_ENABLED\n')
+        header.write('\n#endif // CS_COMPRESSED_H\n')
+
+        glue_version = int(latest_mtime) # The latest modified time will do for now
+
+        with open(version_dst, 'w') as version_header:
+            version_header.write('/* THIS FILE IS GENERATED DO NOT EDIT */\n')
+            version_header.write('#ifndef CS_GLUE_VERSION_H\n')
+            version_header.write('#define CS_GLUE_VERSION_H\n\n')
+            version_header.write('#define CS_GLUE_VERSION UINT32_C(' + str(glue_version) + ')\n')
+            version_header.write('\n#endif // CS_GLUE_VERSION_H\n')
diff --git a/modules/mono/build_scripts/mono_configure.py b/modules/mono/build_scripts/mono_configure.py
new file mode 100644
index 0000000000..4cfa2a5b93
--- /dev/null
+++ b/modules/mono/build_scripts/mono_configure.py
@@ -0,0 +1,414 @@
+import imp
+import os
+import sys
+import subprocess
+
+from distutils.version import LooseVersion
+from SCons.Script import BoolVariable, Dir, Environment, Variables
+
+if os.name == 'nt':
+    from . import mono_reg_utils as monoreg
+
+
+def find_file_in_dir(directory, files, prefix='', extension=''):
+    if not extension.startswith('.'):
+        extension = '.' + extension
+    for curfile in files:
+        if os.path.isfile(os.path.join(directory, prefix + curfile + extension)):
+            return curfile
+    return ''
+
+
+def copy_file(src_dir, dst_dir, name):
+    from shutil import copyfile
+
+    src_path = os.path.join(src_dir, name)
+    dst_path = os.path.join(dst_dir, name)
+
+    if not os.path.isdir(dst_dir):
+        os.mkdir(dst_dir)
+
+    copyfile(src_path, dst_path)
+
+
+def configure(env, env_mono):
+    envvars = Variables()
+    envvars.Add(BoolVariable('mono_static', 'Statically link mono', False))
+    envvars.Add(BoolVariable('copy_mono_root', 'Make a copy of the mono installation directory to bundle with the editor', False))
+    envvars.Update(env)
+
+    bits = env['bits']
+
+    tools_enabled = env['tools']
+    mono_static = env['mono_static']
+    copy_mono_root = env['copy_mono_root']
+
+    mono_lib_names = ['mono-2.0-sgen', 'monosgen-2.0']
+
+    if env['platform'] == 'windows':
+        mono_root = ''
+
+        if bits == '32':
+            if os.getenv('MONO32_PREFIX'):
+                mono_root = os.getenv('MONO32_PREFIX')
+            elif os.name == 'nt':
+                mono_root = monoreg.find_mono_root_dir(bits)
+        else:
+            if os.getenv('MONO64_PREFIX'):
+                mono_root = os.getenv('MONO64_PREFIX')
+            elif os.name == 'nt':
+                mono_root = monoreg.find_mono_root_dir(bits)
+
+        if not mono_root:
+            raise RuntimeError('Mono installation directory not found')
+
+        print('Found Mono root directory: ' + mono_root)
+
+        mono_version = mono_root_try_find_mono_version(mono_root)
+        configure_for_mono_version(env_mono, mono_version)
+
+        mono_lib_path = os.path.join(mono_root, 'lib')
+
+        env.Append(LIBPATH=mono_lib_path)
+        env_mono.Prepend(CPPPATH=os.path.join(mono_root, 'include', 'mono-2.0'))
+
+        if mono_static:
+            lib_suffix = Environment()['LIBSUFFIX']
+
+            if env.msvc:
+                mono_static_lib_name = 'libmono-static-sgen'
+            else:
+                mono_static_lib_name = 'libmonosgen-2.0'
+
+            if not os.path.isfile(os.path.join(mono_lib_path, mono_static_lib_name + lib_suffix)):
+                raise RuntimeError('Could not find static mono library in: ' + mono_lib_path)
+
+            if env.msvc:
+                env.Append(LINKFLAGS=mono_static_lib_name + lib_suffix)
+
+                env.Append(LINKFLAGS='Mincore' + lib_suffix)
+                env.Append(LINKFLAGS='msvcrt' + lib_suffix)
+                env.Append(LINKFLAGS='LIBCMT' + lib_suffix)
+                env.Append(LINKFLAGS='Psapi' + lib_suffix)
+            else:
+                env.Append(LINKFLAGS=os.path.join(mono_lib_path, mono_static_lib_name + lib_suffix))
+
+                env.Append(LIBS='psapi')
+                env.Append(LIBS='version')
+        else:
+            mono_lib_name = find_file_in_dir(mono_lib_path, mono_lib_names, extension='.lib')
+
+            if not mono_lib_name:
+                raise RuntimeError('Could not find mono library in: ' + mono_lib_path)
+
+            if env.msvc:
+                env.Append(LINKFLAGS=mono_lib_name + Environment()['LIBSUFFIX'])
+            else:
+                env.Append(LIBS=mono_lib_name)
+
+            mono_bin_path = os.path.join(mono_root, 'bin')
+
+            mono_dll_name = find_file_in_dir(mono_bin_path, mono_lib_names, extension='.dll')
+
+            if not mono_dll_name:
+                raise RuntimeError('Could not find mono shared library in: ' + mono_bin_path)
+
+            copy_file(mono_bin_path, 'bin', mono_dll_name + '.dll')
+    else:
+        is_apple = (sys.platform == 'darwin' or "osxcross" in env)
+
+        sharedlib_ext = '.dylib' if is_apple else '.so'
+
+        mono_root = ''
+        mono_lib_path = ''
+
+        if bits == '32':
+            if os.getenv('MONO32_PREFIX'):
+                mono_root = os.getenv('MONO32_PREFIX')
+        else:
+            if os.getenv('MONO64_PREFIX'):
+                mono_root = os.getenv('MONO64_PREFIX')
+
+        if not mono_root and is_apple:
+            # Try with some known directories under OSX
+            hint_dirs = ['/Library/Frameworks/Mono.framework/Versions/Current', '/usr/local/var/homebrew/linked/mono']
+            for hint_dir in hint_dirs:
+                if os.path.isdir(hint_dir):
+                    mono_root = hint_dir
+                    break
+
+        # We can't use pkg-config to link mono statically,
+        # but we can still use it to find the mono root directory
+        if not mono_root and mono_static:
+            mono_root = pkgconfig_try_find_mono_root(mono_lib_names, sharedlib_ext)
+            if not mono_root:
+                raise RuntimeError('Building with mono_static=yes, but failed to find the mono prefix with pkg-config. Specify one manually')
+
+        if mono_root:
+            print('Found Mono root directory: ' + mono_root)
+
+            mono_version = mono_root_try_find_mono_version(mono_root)
+            configure_for_mono_version(env_mono, mono_version)
+
+            mono_lib_path = os.path.join(mono_root, 'lib')
+
+            env.Append(LIBPATH=mono_lib_path)
+            env_mono.Prepend(CPPPATH=os.path.join(mono_root, 'include', 'mono-2.0'))
+
+            mono_lib = find_file_in_dir(mono_lib_path, mono_lib_names, prefix='lib', extension='.a')
+
+            if not mono_lib:
+                raise RuntimeError('Could not find mono library in: ' + mono_lib_path)
+
+            env_mono.Append(CPPFLAGS=['-D_REENTRANT'])
+
+            if mono_static:
+                mono_lib_file = os.path.join(mono_lib_path, 'lib' + mono_lib + '.a')
+
+                if is_apple:
+                    env.Append(LINKFLAGS=['-Wl,-force_load,' + mono_lib_file])
+                else:
+                    env.Append(LINKFLAGS=['-Wl,-whole-archive', mono_lib_file, '-Wl,-no-whole-archive'])
+            else:
+                env.Append(LIBS=[mono_lib])
+
+            if is_apple:
+                env.Append(LIBS=['iconv', 'pthread'])
+            else:
+                env.Append(LIBS=['m', 'rt', 'dl', 'pthread'])
+
+            if not mono_static:
+                mono_so_name = find_file_in_dir(mono_lib_path, mono_lib_names, prefix='lib', extension=sharedlib_ext)
+
+                if not mono_so_name:
+                    raise RuntimeError('Could not find mono shared library in: ' + mono_lib_path)
+
+                copy_file(mono_lib_path, 'bin', 'lib' + mono_so_name + sharedlib_ext)
+        else:
+            assert not mono_static
+
+            # TODO: Add option to force using pkg-config
+            print('Mono root directory not found. Using pkg-config instead')
+
+            mono_version = pkgconfig_try_find_mono_version()
+            configure_for_mono_version(env_mono, mono_version)
+
+            env.ParseConfig('pkg-config monosgen-2 --libs')
+            env_mono.ParseConfig('pkg-config monosgen-2 --cflags')
+
+            mono_lib_path = ''
+            mono_so_name = ''
+
+            tmpenv = Environment()
+            tmpenv.AppendENVPath('PKG_CONFIG_PATH', os.getenv('PKG_CONFIG_PATH'))
+            tmpenv.ParseConfig('pkg-config monosgen-2 --libs-only-L')
+
+            for hint_dir in tmpenv['LIBPATH']:
+                name_found = find_file_in_dir(hint_dir, mono_lib_names, prefix='lib', extension=sharedlib_ext)
+                if name_found:
+                    mono_lib_path = hint_dir
+                    mono_so_name = name_found
+                    break
+
+            if not mono_so_name:
+                raise RuntimeError('Could not find mono shared library in: ' + str(tmpenv['LIBPATH']))
+
+            copy_file(mono_lib_path, 'bin', 'lib' + mono_so_name + sharedlib_ext)
+
+        env.Append(LINKFLAGS='-rdynamic')
+
+    if not tools_enabled:
+        if not mono_root:
+            mono_root = subprocess.check_output(['pkg-config', 'mono-2', '--variable=prefix']).decode('utf8').strip()
+
+        make_template_dir(env, mono_root)
+
+    if copy_mono_root:
+        if not mono_root:
+            mono_root = subprocess.check_output(['pkg-config', 'mono-2', '--variable=prefix']).decode('utf8').strip()
+
+        if tools_enabled:
+           copy_mono_root_files(env, mono_root)
+        else:
+            print("Ignoring option: 'copy_mono_root'. Only available for builds with 'tools' enabled.")
+
+
+def make_template_dir(env, mono_root):
+    from shutil import rmtree
+
+    platform = env['platform']
+    target = env['target']
+
+    template_dir_name = ''
+
+    if platform in ['windows', 'osx', 'x11']:
+        template_dir_name = 'data.mono.%s.%s.%s' % (platform, env['bits'], target)
+    else:
+        assert False
+
+    output_dir = Dir('#bin').abspath
+    template_dir = os.path.join(output_dir, template_dir_name)
+
+    template_mono_root_dir = os.path.join(template_dir, 'Mono')
+
+    if os.path.isdir(template_mono_root_dir):
+        rmtree(template_mono_root_dir) # Clean first
+
+    # Copy etc/mono/
+
+    template_mono_config_dir = os.path.join(template_mono_root_dir, 'etc', 'mono')
+    copy_mono_etc_dir(mono_root, template_mono_config_dir, env['platform'])
+
+    # Copy the required shared libraries
+
+    copy_mono_shared_libs(mono_root, template_mono_root_dir, env['platform'])
+
+
+def copy_mono_root_files(env, mono_root):
+    from glob import glob
+    from shutil import copy
+    from shutil import rmtree
+
+    if not mono_root:
+        raise RuntimeError('Mono installation directory not found')
+
+    output_dir = Dir('#bin').abspath
+    editor_mono_root_dir = os.path.join(output_dir, 'GodotSharp', 'Mono')
+
+    if os.path.isdir(editor_mono_root_dir):
+        rmtree(editor_mono_root_dir) # Clean first
+
+    # Copy etc/mono/
+
+    editor_mono_config_dir = os.path.join(editor_mono_root_dir, 'etc', 'mono')
+    copy_mono_etc_dir(mono_root, editor_mono_config_dir, env['platform'])
+
+    # Copy the required shared libraries
+
+    copy_mono_shared_libs(mono_root, editor_mono_root_dir, env['platform'])
+
+    # Copy framework assemblies
+
+    mono_framework_dir = os.path.join(mono_root, 'lib', 'mono', '4.5')
+    mono_framework_facades_dir = os.path.join(mono_framework_dir, 'Facades')
+
+    editor_mono_framework_dir = os.path.join(editor_mono_root_dir, 'lib', 'mono', '4.5')
+    editor_mono_framework_facades_dir = os.path.join(editor_mono_framework_dir, 'Facades')
+
+    if not os.path.isdir(editor_mono_framework_dir):
+        os.makedirs(editor_mono_framework_dir)
+    if not os.path.isdir(editor_mono_framework_facades_dir):
+        os.makedirs(editor_mono_framework_facades_dir)
+
+    for assembly in glob(os.path.join(mono_framework_dir, '*.dll')):
+        copy(assembly, editor_mono_framework_dir)
+    for assembly in glob(os.path.join(mono_framework_facades_dir, '*.dll')):
+        copy(assembly, editor_mono_framework_facades_dir)
+
+
+def copy_mono_etc_dir(mono_root, target_mono_config_dir, platform):
+    from distutils.dir_util import copy_tree
+    from glob import glob
+    from shutil import copy
+
+    if not os.path.isdir(target_mono_config_dir):
+        os.makedirs(target_mono_config_dir)
+
+    mono_etc_dir = os.path.join(mono_root, 'etc', 'mono')
+    if not os.path.isdir(mono_etc_dir):
+        mono_etc_dir = ''
+        etc_hint_dirs = []
+        if platform != 'windows':
+            etc_hint_dirs += ['/etc/mono', '/usr/local/etc/mono']
+        if 'MONO_CFG_DIR' in os.environ:
+            etc_hint_dirs += [os.path.join(os.environ['MONO_CFG_DIR'], 'mono')]
+        for etc_hint_dir in etc_hint_dirs:
+            if os.path.isdir(etc_hint_dir):
+                mono_etc_dir = etc_hint_dir
+                break
+        if not mono_etc_dir:
+            raise RuntimeError('Mono installation etc directory not found')
+
+    copy_tree(os.path.join(mono_etc_dir, '2.0'), os.path.join(target_mono_config_dir, '2.0'))
+    copy_tree(os.path.join(mono_etc_dir, '4.0'), os.path.join(target_mono_config_dir, '4.0'))
+    copy_tree(os.path.join(mono_etc_dir, '4.5'), os.path.join(target_mono_config_dir, '4.5'))
+    copy_tree(os.path.join(mono_etc_dir, 'mconfig'), os.path.join(target_mono_config_dir, 'mconfig'))
+
+    for file in glob(os.path.join(mono_etc_dir, '*')):
+        if os.path.isfile(file):
+            copy(file, target_mono_config_dir)
+
+
+def copy_mono_shared_libs(mono_root, target_mono_root_dir, platform):
+    from shutil import copy
+
+    if platform == 'windows':
+        target_mono_bin_dir = os.path.join(target_mono_root_dir, 'bin')
+
+        if not os.path.isdir(target_mono_bin_dir):
+            os.makedirs(target_mono_bin_dir)
+
+        copy(os.path.join(mono_root, 'bin', 'MonoPosixHelper.dll'), os.path.join(target_mono_bin_dir, 'MonoPosixHelper.dll'))
+    else:
+        target_mono_lib_dir = os.path.join(target_mono_root_dir, 'lib')
+
+        if not os.path.isdir(target_mono_lib_dir):
+            os.makedirs(target_mono_lib_dir)
+
+        if platform == 'osx':
+            copy(os.path.join(mono_root, 'lib', 'libMonoPosixHelper.dylib'), os.path.join(target_mono_lib_dir, 'libMonoPosixHelper.dylib'))
+        elif platform == 'x11':
+            copy(os.path.join(mono_root, 'lib', 'libmono-btls-shared.so'), os.path.join(target_mono_lib_dir, 'libmono-btls-shared.so'))
+            copy(os.path.join(mono_root, 'lib', 'libMonoPosixHelper.so'), os.path.join(target_mono_lib_dir, 'libMonoPosixHelper.so'))
+
+
+def configure_for_mono_version(env, mono_version):
+    if mono_version is None:
+        raise RuntimeError('Mono JIT compiler version not found')
+    print('Found Mono JIT compiler version: ' + str(mono_version))
+    if mono_version >= LooseVersion('5.12.0'):
+        env.Append(CPPFLAGS=['-DHAS_PENDING_EXCEPTIONS'])
+
+
+def pkgconfig_try_find_mono_root(mono_lib_names, sharedlib_ext):
+    tmpenv = Environment()
+    tmpenv.AppendENVPath('PKG_CONFIG_PATH', os.getenv('PKG_CONFIG_PATH'))
+    tmpenv.ParseConfig('pkg-config monosgen-2 --libs-only-L')
+    for hint_dir in tmpenv['LIBPATH']:
+        name_found = find_file_in_dir(hint_dir, mono_lib_names, prefix='lib', extension=sharedlib_ext)
+        if name_found and os.path.isdir(os.path.join(hint_dir, '..', 'include', 'mono-2.0')):
+            return os.path.join(hint_dir, '..')
+    return ''
+
+
+def pkgconfig_try_find_mono_version():
+    from compat import decode_utf8
+
+    lines = subprocess.check_output(['pkg-config', 'monosgen-2', '--modversion']).splitlines()
+    greater_version = None
+    for line in lines:
+        try:
+            version = LooseVersion(decode_utf8(line))
+            if greater_version is None or version > greater_version:
+                greater_version = version
+        except ValueError:
+            pass
+    return greater_version
+
+
+def mono_root_try_find_mono_version(mono_root):
+    from compat import decode_utf8
+
+    mono_bin = os.path.join(mono_root, 'bin')
+    if os.path.isfile(os.path.join(mono_bin, 'mono')):
+        mono_binary = os.path.join(mono_bin, 'mono')
+    elif os.path.isfile(os.path.join(mono_bin, 'mono.exe')):
+        mono_binary = os.path.join(mono_bin, 'mono.exe')
+    else:
+        return None
+    output = subprocess.check_output([mono_binary, '--version'])
+    first_line = decode_utf8(output.splitlines()[0])
+    try:
+        return LooseVersion(first_line.split()[len('Mono JIT compiler version'.split())])
+    except (ValueError, IndexError):
+        return None
diff --git a/modules/mono/mono_reg_utils.py b/modules/mono/build_scripts/mono_reg_utils.py
index c8ebb54ded..583708bf07 100644
--- a/modules/mono/mono_reg_utils.py
+++ b/modules/mono/build_scripts/mono_reg_utils.py
@@ -40,7 +40,7 @@ def _reg_open_key_bits(key, subkey, bits):
 def _find_mono_in_reg(subkey, bits):
     try:
         with _reg_open_key_bits(winreg.HKEY_LOCAL_MACHINE, subkey, bits) as hKey:
-            value, regtype = winreg.QueryValueEx(hKey, 'SdkInstallRoot')
+            value = winreg.QueryValueEx(hKey, 'SdkInstallRoot')[0]
             return value
     except (WindowsError, OSError):
         return None
@@ -49,7 +49,7 @@ def _find_mono_in_reg(subkey, bits):
 def _find_mono_in_reg_old(subkey, bits):
     try:
         with _reg_open_key_bits(winreg.HKEY_LOCAL_MACHINE, subkey, bits) as hKey:
-            default_clr, regtype = winreg.QueryValueEx(hKey, 'DefaultCLR')
+            default_clr = winreg.QueryValueEx(hKey, 'DefaultCLR')[0]
             if default_clr:
                 return _find_mono_in_reg(subkey + '\\' + default_clr, bits)
             return None
@@ -91,7 +91,13 @@ def find_msbuild_tools_path_reg():
             if not val:
                 raise ValueError('Value of `installationPath` entry is empty')
 
-            return os.path.join(val, "MSBuild\\15.0\\Bin")
+            # Since VS2019, the directory is simply named "Current"
+            msbuild_dir = os.path.join(val, 'MSBuild\\Current\\Bin')
+            if os.path.isdir(msbuild_dir):
+                return msbuild_dir
+
+            # Directory name "15.0" is used in VS 2017
+            return os.path.join(val, 'MSBuild\\15.0\\Bin')
 
         raise ValueError('Cannot find `installationPath` entry')
     except ValueError as e:
@@ -106,7 +112,7 @@ def find_msbuild_tools_path_reg():
     try:
         subkey = r'SOFTWARE\Microsoft\MSBuild\ToolsVersions\14.0'
         with _reg_open_key(winreg.HKEY_LOCAL_MACHINE, subkey) as hKey:
-            value, regtype = winreg.QueryValueEx(hKey, 'MSBuildToolsPath')
+            value = winreg.QueryValueEx(hKey, 'MSBuildToolsPath')[0]
             return value
     except (WindowsError, OSError):
         return ''
diff --git a/modules/mono/tls_configure.py b/modules/mono/build_scripts/tls_configure.py
index 622280b00b..622280b00b 100644
--- a/modules/mono/tls_configure.py
+++ b/modules/mono/build_scripts/tls_configure.py
diff --git a/modules/mono/config.py b/modules/mono/config.py
index a81ecfce70..3b2e96765e 100644
--- a/modules/mono/config.py
+++ b/modules/mono/config.py
@@ -1,25 +1,12 @@
-
-import imp
-import os
-import sys
-import subprocess
-
-from distutils.version import LooseVersion
-from SCons.Script import BoolVariable, Dir, Environment, File, SCons, Variables
-
-
-monoreg = imp.load_source('mono_reg_utils', 'modules/mono/mono_reg_utils.py')
-
-
 def can_build(env, platform):
     if platform in ['javascript']:
         return False # Not yet supported
     return True
 
 
-def is_enabled():
-    # The module is disabled by default. Use module_mono_enabled=yes to enable it.
-    return False
+def configure(env):
+    env.use_ptrcall = True
+    env.add_module_version_string('mono')
 
 
 def get_doc_classes():
@@ -34,407 +21,6 @@ def get_doc_path():
     return 'doc_classes'
 
 
-def find_file_in_dir(directory, files, prefix='', extension=''):
-    if not extension.startswith('.'):
-        extension = '.' + extension
-    for curfile in files:
-        if os.path.isfile(os.path.join(directory, prefix + curfile + extension)):
-            return curfile
-    return ''
-
-
-def copy_file(src_dir, dst_dir, name):
-    from shutil import copyfile
-
-    src_path = os.path.join(src_dir, name)
-    dst_path = os.path.join(dst_dir, name)
-
-    if not os.path.isdir(dst_dir):
-        os.mkdir(dst_dir)
-
-    copyfile(src_path, dst_path)
-
-
-def configure(env):
-    env.use_ptrcall = True
-    env.add_module_version_string('mono')
-
-    envvars = Variables()
-    envvars.Add(BoolVariable('mono_static', 'Statically link mono', False))
-    envvars.Add(BoolVariable('copy_mono_root', 'Make a copy of the mono installation directory to bundle with the editor', False))
-    envvars.Update(env)
-
-    bits = env['bits']
-
-    tools_enabled = env['tools']
-    mono_static = env['mono_static']
-    copy_mono_root = env['copy_mono_root']
-
-    mono_lib_names = ['mono-2.0-sgen', 'monosgen-2.0']
-
-    if env['platform'] == 'windows':
-        mono_root = ''
-
-        if bits == '32':
-            if os.getenv('MONO32_PREFIX'):
-                mono_root = os.getenv('MONO32_PREFIX')
-            elif os.name == 'nt':
-                mono_root = monoreg.find_mono_root_dir(bits)
-        else:
-            if os.getenv('MONO64_PREFIX'):
-                mono_root = os.getenv('MONO64_PREFIX')
-            elif os.name == 'nt':
-                mono_root = monoreg.find_mono_root_dir(bits)
-
-        if not mono_root:
-            raise RuntimeError('Mono installation directory not found')
-
-        print('Found Mono root directory: ' + mono_root)
-
-        mono_version = mono_root_try_find_mono_version(mono_root)
-        configure_for_mono_version(env, mono_version)
-
-        mono_lib_path = os.path.join(mono_root, 'lib')
-
-        env.Append(LIBPATH=mono_lib_path)
-        env.Append(CPPPATH=os.path.join(mono_root, 'include', 'mono-2.0'))
-
-        if mono_static:
-            lib_suffix = Environment()['LIBSUFFIX']
-
-            if env.msvc:
-                mono_static_lib_name = 'libmono-static-sgen'
-            else:
-                mono_static_lib_name = 'libmonosgen-2.0'
-
-            if not os.path.isfile(os.path.join(mono_lib_path, mono_static_lib_name + lib_suffix)):
-                raise RuntimeError('Could not find static mono library in: ' + mono_lib_path)
-
-            if env.msvc:
-                env.Append(LINKFLAGS=mono_static_lib_name + lib_suffix)
-
-                env.Append(LINKFLAGS='Mincore' + lib_suffix)
-                env.Append(LINKFLAGS='msvcrt' + lib_suffix)
-                env.Append(LINKFLAGS='LIBCMT' + lib_suffix)
-                env.Append(LINKFLAGS='Psapi' + lib_suffix)
-            else:
-                env.Append(LINKFLAGS=os.path.join(mono_lib_path, mono_static_lib_name + lib_suffix))
-
-                env.Append(LIBS='psapi')
-                env.Append(LIBS='version')
-        else:
-            mono_lib_name = find_file_in_dir(mono_lib_path, mono_lib_names, extension='.lib')
-
-            if not mono_lib_name:
-                raise RuntimeError('Could not find mono library in: ' + mono_lib_path)
-
-            if env.msvc:
-                env.Append(LINKFLAGS=mono_lib_name + Environment()['LIBSUFFIX'])
-            else:
-                env.Append(LIBS=mono_lib_name)
-
-            mono_bin_path = os.path.join(mono_root, 'bin')
-
-            mono_dll_name = find_file_in_dir(mono_bin_path, mono_lib_names, extension='.dll')
-
-            if not mono_dll_name:
-                raise RuntimeError('Could not find mono shared library in: ' + mono_bin_path)
-
-            copy_file(mono_bin_path, 'bin', mono_dll_name + '.dll')
-    else:
-        is_apple = (sys.platform == 'darwin' or "osxcross" in env)
-
-        sharedlib_ext = '.dylib' if is_apple else '.so'
-
-        mono_root = ''
-        mono_lib_path = ''
-
-        if bits == '32':
-            if os.getenv('MONO32_PREFIX'):
-                mono_root = os.getenv('MONO32_PREFIX')
-        else:
-            if os.getenv('MONO64_PREFIX'):
-                mono_root = os.getenv('MONO64_PREFIX')
-
-        if not mono_root and is_apple:
-            # Try with some known directories under OSX
-            hint_dirs = ['/Library/Frameworks/Mono.framework/Versions/Current', '/usr/local/var/homebrew/linked/mono']
-            for hint_dir in hint_dirs:
-                if os.path.isdir(hint_dir):
-                    mono_root = hint_dir
-                    break
-
-        # We can't use pkg-config to link mono statically,
-        # but we can still use it to find the mono root directory
-        if not mono_root and mono_static:
-            mono_root = pkgconfig_try_find_mono_root(mono_lib_names, sharedlib_ext)
-            if not mono_root:
-                raise RuntimeError('Building with mono_static=yes, but failed to find the mono prefix with pkg-config. Specify one manually')
-
-        if mono_root:
-            print('Found Mono root directory: ' + mono_root)
-
-            mono_version = mono_root_try_find_mono_version(mono_root)
-            configure_for_mono_version(env, mono_version)
-
-            mono_lib_path = os.path.join(mono_root, 'lib')
-
-            env.Append(LIBPATH=mono_lib_path)
-            env.Append(CPPPATH=os.path.join(mono_root, 'include', 'mono-2.0'))
-
-            mono_lib = find_file_in_dir(mono_lib_path, mono_lib_names, prefix='lib', extension='.a')
-
-            if not mono_lib:
-                raise RuntimeError('Could not find mono library in: ' + mono_lib_path)
-
-            env.Append(CPPFLAGS=['-D_REENTRANT'])
-
-            if mono_static:
-                mono_lib_file = os.path.join(mono_lib_path, 'lib' + mono_lib + '.a')
-
-                if is_apple:
-                    env.Append(LINKFLAGS=['-Wl,-force_load,' + mono_lib_file])
-                else:
-                    env.Append(LINKFLAGS=['-Wl,-whole-archive', mono_lib_file, '-Wl,-no-whole-archive'])
-            else:
-                env.Append(LIBS=[mono_lib])
-
-            if is_apple:
-                env.Append(LIBS=['iconv', 'pthread'])
-            else:
-                env.Append(LIBS=['m', 'rt', 'dl', 'pthread'])
-
-            if not mono_static:
-                mono_so_name = find_file_in_dir(mono_lib_path, mono_lib_names, prefix='lib', extension=sharedlib_ext)
-
-                if not mono_so_name:
-                    raise RuntimeError('Could not find mono shared library in: ' + mono_lib_path)
-
-                copy_file(mono_lib_path, 'bin', 'lib' + mono_so_name + sharedlib_ext)
-        else:
-            assert not mono_static
-
-            # TODO: Add option to force using pkg-config
-            print('Mono root directory not found. Using pkg-config instead')
-
-            mono_version = pkgconfig_try_find_mono_version()
-            configure_for_mono_version(env, mono_version)
-
-            env.ParseConfig('pkg-config monosgen-2 --cflags --libs')
-
-            mono_lib_path = ''
-            mono_so_name = ''
-
-            tmpenv = Environment()
-            tmpenv.AppendENVPath('PKG_CONFIG_PATH', os.getenv('PKG_CONFIG_PATH'))
-            tmpenv.ParseConfig('pkg-config monosgen-2 --libs-only-L')
-
-            for hint_dir in tmpenv['LIBPATH']:
-                name_found = find_file_in_dir(hint_dir, mono_lib_names, prefix='lib', extension=sharedlib_ext)
-                if name_found:
-                    mono_lib_path = hint_dir
-                    mono_so_name = name_found
-                    break
-
-            if not mono_so_name:
-                raise RuntimeError('Could not find mono shared library in: ' + str(tmpenv['LIBPATH']))
-
-            copy_file(mono_lib_path, 'bin', 'lib' + mono_so_name + sharedlib_ext)
-
-        env.Append(LINKFLAGS='-rdynamic')
-
-    if not tools_enabled:
-        if not mono_root:
-            mono_root = subprocess.check_output(['pkg-config', 'mono-2', '--variable=prefix']).decode('utf8').strip()
-
-        make_template_dir(env, mono_root)
-
-    if copy_mono_root:
-        if not mono_root:
-            mono_root = subprocess.check_output(['pkg-config', 'mono-2', '--variable=prefix']).decode('utf8').strip()
-
-        if tools_enabled:
-           copy_mono_root_files(env, mono_root)
-        else:
-            print("Ignoring option: 'copy_mono_root'. Only available for builds with 'tools' enabled.")
-
-
-def make_template_dir(env, mono_root):
-    from shutil import rmtree
-
-    platform = env['platform']
-    target = env['target']
-
-    template_dir_name = ''
-
-    if platform in ['windows', 'osx', 'x11']:
-        template_dir_name = 'data.mono.%s.%s.%s' % (platform, env['bits'], target)
-    else:
-        assert False
-
-    output_dir = Dir('#bin').abspath
-    template_dir = os.path.join(output_dir, template_dir_name)
-
-    template_mono_root_dir = os.path.join(template_dir, 'Mono')
-
-    if os.path.isdir(template_mono_root_dir):
-        rmtree(template_mono_root_dir) # Clean first
-
-    # Copy etc/mono/
-
-    template_mono_config_dir = os.path.join(template_mono_root_dir, 'etc', 'mono')
-    copy_mono_etc_dir(mono_root, template_mono_config_dir, env['platform'])
-
-    # Copy the required shared libraries
-
-    copy_mono_shared_libs(mono_root, template_mono_root_dir, env['platform'])
-
-
-def copy_mono_root_files(env, mono_root):
-    from glob import glob
-    from shutil import copy
-    from shutil import rmtree
-
-    if not mono_root:
-        raise RuntimeError('Mono installation directory not found')
-
-    output_dir = Dir('#bin').abspath
-    editor_mono_root_dir = os.path.join(output_dir, 'GodotSharp', 'Mono')
-
-    if os.path.isdir(editor_mono_root_dir):
-        rmtree(editor_mono_root_dir) # Clean first
-
-    # Copy etc/mono/
-
-    editor_mono_config_dir = os.path.join(editor_mono_root_dir, 'etc', 'mono')
-    copy_mono_etc_dir(mono_root, editor_mono_config_dir, env['platform'])
-
-    # Copy the required shared libraries
-
-    copy_mono_shared_libs(mono_root, editor_mono_root_dir, env['platform'])
-
-    # Copy framework assemblies
-
-    mono_framework_dir = os.path.join(mono_root, 'lib', 'mono', '4.5')
-    mono_framework_facades_dir = os.path.join(mono_framework_dir, 'Facades')
-
-    editor_mono_framework_dir = os.path.join(editor_mono_root_dir, 'lib', 'mono', '4.5')
-    editor_mono_framework_facades_dir = os.path.join(editor_mono_framework_dir, 'Facades')
-
-    if not os.path.isdir(editor_mono_framework_dir):
-        os.makedirs(editor_mono_framework_dir)
-    if not os.path.isdir(editor_mono_framework_facades_dir):
-        os.makedirs(editor_mono_framework_facades_dir)
-
-    for assembly in glob(os.path.join(mono_framework_dir, '*.dll')):
-        copy(assembly, editor_mono_framework_dir)
-    for assembly in glob(os.path.join(mono_framework_facades_dir, '*.dll')):
-        copy(assembly, editor_mono_framework_facades_dir)
-
-
-def copy_mono_etc_dir(mono_root, target_mono_config_dir, platform):
-    from distutils.dir_util import copy_tree
-    from glob import glob
-    from shutil import copy
-
-    if not os.path.isdir(target_mono_config_dir):
-        os.makedirs(target_mono_config_dir)
-
-    mono_etc_dir = os.path.join(mono_root, 'etc', 'mono')
-    if not os.path.isdir(mono_etc_dir):
-        mono_etc_dir = ''
-        etc_hint_dirs = []
-        if platform != 'windows':
-            etc_hint_dirs += ['/etc/mono', '/usr/local/etc/mono']
-        if 'MONO_CFG_DIR' in os.environ:
-            etc_hint_dirs += [os.path.join(os.environ['MONO_CFG_DIR'], 'mono')]
-        for etc_hint_dir in etc_hint_dirs:
-            if os.path.isdir(etc_hint_dir):
-                mono_etc_dir = etc_hint_dir
-                break
-        if not mono_etc_dir:
-            raise RuntimeError('Mono installation etc directory not found')
-
-    copy_tree(os.path.join(mono_etc_dir, '2.0'), os.path.join(target_mono_config_dir, '2.0'))
-    copy_tree(os.path.join(mono_etc_dir, '4.0'), os.path.join(target_mono_config_dir, '4.0'))
-    copy_tree(os.path.join(mono_etc_dir, '4.5'), os.path.join(target_mono_config_dir, '4.5'))
-    copy_tree(os.path.join(mono_etc_dir, 'mconfig'), os.path.join(target_mono_config_dir, 'mconfig'))
-
-    for file in glob(os.path.join(mono_etc_dir, '*')):
-        if os.path.isfile(file):
-            copy(file, target_mono_config_dir)
-
-
-def copy_mono_shared_libs(mono_root, target_mono_root_dir, platform):
-    from shutil import copy
-
-    if platform == 'windows':
-        target_mono_bin_dir = os.path.join(target_mono_root_dir, 'bin')
-
-        if not os.path.isdir(target_mono_bin_dir):
-            os.makedirs(target_mono_bin_dir)
-
-        copy(os.path.join(mono_root, 'bin', 'MonoPosixHelper.dll'), os.path.join(target_mono_bin_dir, 'MonoPosixHelper.dll'))
-    else:
-        target_mono_lib_dir = os.path.join(target_mono_root_dir, 'lib')
-
-        if not os.path.isdir(target_mono_lib_dir):
-            os.makedirs(target_mono_lib_dir)
-
-        if platform == 'osx':
-            copy(os.path.join(mono_root, 'lib', 'libMonoPosixHelper.dylib'), os.path.join(target_mono_lib_dir, 'libMonoPosixHelper.dylib'))
-        elif platform == 'x11':
-            copy(os.path.join(mono_root, 'lib', 'libmono-btls-shared.so'), os.path.join(target_mono_lib_dir, 'libmono-btls-shared.so'))
-            copy(os.path.join(mono_root, 'lib', 'libMonoPosixHelper.so'), os.path.join(target_mono_lib_dir, 'libMonoPosixHelper.so'))
-
-
-def configure_for_mono_version(env, mono_version):
-    if mono_version is None:
-        raise RuntimeError('Mono JIT compiler version not found')
-    print('Found Mono JIT compiler version: ' + str(mono_version))
-    if mono_version >= LooseVersion('5.12.0'):
-        env.Append(CPPFLAGS=['-DHAS_PENDING_EXCEPTIONS'])
-
-
-def pkgconfig_try_find_mono_root(mono_lib_names, sharedlib_ext):
-    tmpenv = Environment()
-    tmpenv.AppendENVPath('PKG_CONFIG_PATH', os.getenv('PKG_CONFIG_PATH'))
-    tmpenv.ParseConfig('pkg-config monosgen-2 --libs-only-L')
-    for hint_dir in tmpenv['LIBPATH']:
-        name_found = find_file_in_dir(hint_dir, mono_lib_names, prefix='lib', extension=sharedlib_ext)
-        if name_found and os.path.isdir(os.path.join(hint_dir, '..', 'include', 'mono-2.0')):
-            return os.path.join(hint_dir, '..')
-    return ''
-
-
-def pkgconfig_try_find_mono_version():
-    from compat import decode_utf8
-
-    lines = subprocess.check_output(['pkg-config', 'monosgen-2', '--modversion']).splitlines()
-    greater_version = None
-    for line in lines:
-        try:
-            version = LooseVersion(decode_utf8(line))
-            if greater_version is None or version > greater_version:
-                greater_version = version
-        except ValueError:
-            pass
-    return greater_version
-
-
-def mono_root_try_find_mono_version(mono_root):
-    from compat import decode_utf8
-
-    mono_bin = os.path.join(mono_root, 'bin')
-    if os.path.isfile(os.path.join(mono_bin, 'mono')):
-        mono_binary = os.path.join(mono_bin, 'mono')
-    elif os.path.isfile(os.path.join(mono_bin, 'mono.exe')):
-        mono_binary = os.path.join(mono_bin, 'mono.exe')
-    else:
-        return None
-    output = subprocess.check_output([mono_binary, '--version'])
-    first_line = decode_utf8(output.splitlines()[0])
-    try:
-        return LooseVersion(first_line.split()[len('Mono JIT compiler version'.split())])
-    except (ValueError, IndexError):
-        return None
+def is_enabled():
+    # The module is disabled by default. Use module_mono_enabled=yes to enable it.
+    return False
diff --git a/modules/mono/csharp_script.cpp b/modules/mono/csharp_script.cpp
index e33b238f45..ef09e76d11 100644
--- a/modules/mono/csharp_script.cpp
+++ b/modules/mono/csharp_script.cpp
@@ -131,14 +131,6 @@ void CSharpLanguage::finish() {
 
 	finalizing = true;
 
-#ifdef TOOLS_ENABLED
-	// Must be here, to avoid StringName leaks
-	if (BindingsGenerator::singleton) {
-		memdelete(BindingsGenerator::singleton);
-		BindingsGenerator::singleton = NULL;
-	}
-#endif
-
 	// Make sure all script binding gchandles are released before finalizing GDMono
 	for (Map<Object *, CSharpScriptBinding>::Element *E = script_bindings.front(); E; E = E->next()) {
 		CSharpScriptBinding &script_binding = E->value();
@@ -571,7 +563,7 @@ Vector<ScriptLanguage::StackInfo> CSharpLanguage::stack_trace_get_info(MonoObjec
 
 	MonoException *exc = NULL;
 
-	MonoArray *frames = invoke_method_thunk(CACHED_METHOD_THUNK(System_Diagnostics_StackTrace, GetFrames), p_stack_trace, (MonoObject **)&exc);
+	MonoArray *frames = invoke_method_thunk(CACHED_METHOD_THUNK(System_Diagnostics_StackTrace, GetFrames), p_stack_trace, &exc);
 
 	if (exc) {
 		GDMonoUtils::debug_print_unhandled_exception(exc);
@@ -595,7 +587,7 @@ Vector<ScriptLanguage::StackInfo> CSharpLanguage::stack_trace_get_info(MonoObjec
 		MonoString *file_name;
 		int file_line_num;
 		MonoString *method_decl;
-		invoke_method_thunk(get_sf_info, frame, &file_name, &file_line_num, &method_decl, (MonoObject **)&exc);
+		invoke_method_thunk(get_sf_info, frame, &file_name, &file_line_num, &method_decl, &exc);
 
 		if (exc) {
 			GDMonoUtils::debug_print_unhandled_exception(exc);
@@ -625,7 +617,7 @@ void CSharpLanguage::frame() {
 
 			if (task_scheduler) {
 				MonoException *exc = NULL;
-				invoke_method_thunk(CACHED_METHOD_THUNK(GodotTaskScheduler, Activate), task_scheduler, (MonoObject **)&exc);
+				invoke_method_thunk(CACHED_METHOD_THUNK(GodotTaskScheduler, Activate), task_scheduler, &exc);
 
 				if (exc) {
 					GDMonoUtils::debug_unhandled_exception(exc);
@@ -919,7 +911,7 @@ void CSharpLanguage::reload_assemblies(bool p_soft_reload) {
 }
 #endif
 
-void CSharpLanguage::project_assembly_loaded() {
+void CSharpLanguage::_load_scripts_metadata() {
 
 	scripts_metadata.clear();
 
@@ -953,6 +945,7 @@ void CSharpLanguage::project_assembly_loaded() {
 		}
 
 		scripts_metadata = old_dict_var.operator Dictionary();
+		scripts_metadata_invalidated = false;
 
 		print_verbose("Successfully loaded scripts metadata");
 	} else {
@@ -1024,11 +1017,13 @@ bool CSharpLanguage::debug_break(const String &p_error, bool p_allow_continue) {
 	}
 }
 
-void CSharpLanguage::_uninitialize_script_bindings() {
+void CSharpLanguage::_on_scripts_domain_unloaded() {
 	for (Map<Object *, CSharpScriptBinding>::Element *E = script_bindings.front(); E; E = E->next()) {
 		CSharpScriptBinding &script_binding = E->value();
 		script_binding.inited = false;
 	}
+
+	scripts_metadata_invalidated = true;
 }
 
 void CSharpLanguage::set_language_index(int p_idx) {
@@ -1086,6 +1081,8 @@ CSharpLanguage::CSharpLanguage() {
 #endif
 
 	lang_idx = -1;
+
+	scripts_metadata_invalidated = true;
 }
 
 CSharpLanguage::~CSharpLanguage() {
@@ -1424,6 +1421,34 @@ void CSharpInstance::get_property_list(List<PropertyInfo> *p_properties) const {
 	for (Map<StringName, PropertyInfo>::Element *E = script->member_info.front(); E; E = E->next()) {
 		p_properties->push_back(E->value());
 	}
+
+	// Call _get_property_list
+
+	ERR_FAIL_COND(!script.is_valid());
+
+	MonoObject *mono_object = get_mono_object();
+	ERR_FAIL_NULL(mono_object);
+
+	GDMonoClass *top = script->script_class;
+
+	while (top && top != script->native) {
+		GDMonoMethod *method = top->get_method(CACHED_STRING_NAME(_get_property_list), 0);
+
+		if (method) {
+			MonoObject *ret = method->invoke(mono_object);
+
+			if (ret) {
+				Array array = Array(GDMonoMarshal::mono_object_to_variant(ret));
+				for (int i = 0, size = array.size(); i < size; i++)
+					p_properties->push_back(PropertyInfo::from_dict(array.get(i)));
+				return;
+			}
+
+			break;
+		}
+
+		top = top->get_parent_class();
+	}
 }
 
 Variant::Type CSharpInstance::get_property_type(const StringName &p_name, bool *r_is_valid) const {
@@ -1577,7 +1602,7 @@ MonoObject *CSharpInstance::_internal_new_managed() {
 	// Search the constructor first, to fail with an error if it's not found before allocating anything else.
 	GDMonoMethod *ctor = script->script_class->get_method(CACHED_STRING_NAME(dotctor), 0);
 	if (ctor == NULL) {
-		ERR_PRINTS("Cannot create script instance because the class does not define a default constructor: " + script->get_path());
+		ERR_PRINTS("Cannot create script instance because the class does not define a parameterless constructor: " + script->get_path());
 
 		ERR_EXPLAIN("Constructor not found");
 		ERR_FAIL_V(NULL);
@@ -1966,7 +1991,7 @@ bool CSharpScript::_update_exports() {
 		GDMonoMethod *ctor = script_class->get_method(CACHED_STRING_NAME(dotctor), 0);
 
 		if (ctor == NULL) {
-			ERR_PRINTS("Cannot construct temporary MonoObject because the class does not define a default constructor: " + get_path());
+			ERR_PRINTS("Cannot construct temporary MonoObject because the class does not define a parameterless constructor: " + get_path());
 
 			ERR_EXPLAIN("Constructor not found");
 			ERR_FAIL_V(NULL);
@@ -2166,7 +2191,8 @@ bool CSharpScript::_get_member_export(GDMonoClass *p_class, IMonoClassMember *p_
 		CRASH_NOW();
 	}
 
-	Variant::Type variant_type = GDMonoMarshal::managed_to_variant_type(type);
+	GDMonoMarshal::ExportInfo export_info;
+	Variant::Type variant_type = GDMonoMarshal::managed_to_variant_type(type, &export_info);
 
 	if (!p_member->has_attribute(CACHED_CLASS(ExportAttribute))) {
 		r_prop_info = PropertyInfo(variant_type, name.operator String(), PROPERTY_HINT_NONE, "", PROPERTY_USAGE_SCRIPT_VARIABLE);
@@ -2191,6 +2217,7 @@ bool CSharpScript::_get_member_export(GDMonoClass *p_class, IMonoClassMember *p_
 		ERR_PRINTS("Unknown type of exported member: " + p_class->get_full_name() + "." + name.operator String());
 		return false;
 	} else if (variant_type == Variant::INT && type.type_encoding == MONO_TYPE_VALUETYPE && mono_class_is_enum(type.type_class->get_mono_ptr())) {
+		// TODO: Move to ExportInfo?
 		variant_type = Variant::INT;
 		hint = PROPERTY_HINT_ENUM;
 
@@ -2257,6 +2284,12 @@ bool CSharpScript::_get_member_export(GDMonoClass *p_class, IMonoClassMember *p_
 
 		hint = PROPERTY_HINT_RESOURCE_TYPE;
 		hint_string = NATIVE_GDMONOCLASS_NAME(field_native_class);
+	} else if (variant_type == Variant::ARRAY && export_info.array.element_type != Variant::NIL) {
+		String elem_type_str = itos(export_info.array.element_type);
+		hint = PROPERTY_HINT_TYPE_STRING;
+		hint_string = elem_type_str + "/" + elem_type_str + ":" + export_info.array.element_native_name;
+	} else if (variant_type == Variant::DICTIONARY && export_info.dictionary.key_type != Variant::NIL && export_info.dictionary.value_type != Variant::NIL) {
+		// TODO: There is no hint for this yet
 	} else {
 		hint = PropertyHint(CACHED_FIELD(ExportAttribute, hint)->get_int_value(attr));
 		hint_string = CACHED_FIELD(ExportAttribute, hintString)->get_string_value(attr);
@@ -2460,7 +2493,7 @@ CSharpInstance *CSharpScript::_create_instance(const Variant **p_args, int p_arg
 	GDMonoMethod *ctor = script_class->get_method(CACHED_STRING_NAME(dotctor), p_argcount);
 	if (ctor == NULL) {
 		if (p_argcount == 0) {
-			ERR_PRINTS("Cannot create script instance because the class does not define a default constructor: " + get_path());
+			ERR_PRINTS("Cannot create script instance because the class does not define a parameterless constructor: " + get_path());
 		}
 
 		ERR_EXPLAIN("Constructor not found");
@@ -3020,6 +3053,7 @@ CSharpLanguage::StringNameCache::StringNameCache() {
 	_signal_callback = StaticCString::create("_signal_callback");
 	_set = StaticCString::create("_set");
 	_get = StaticCString::create("_get");
+	_get_property_list = StaticCString::create("_get_property_list");
 	_notification = StaticCString::create("_notification");
 	_script_source = StaticCString::create("script/source");
 	dotctor = StaticCString::create(".ctor");
diff --git a/modules/mono/csharp_script.h b/modules/mono/csharp_script.h
index 99877a4379..fe4eed2e24 100644
--- a/modules/mono/csharp_script.h
+++ b/modules/mono/csharp_script.h
@@ -298,6 +298,7 @@ class CSharpLanguage : public ScriptLanguage {
 		StringName _signal_callback;
 		StringName _set;
 		StringName _get;
+		StringName _get_property_list;
 		StringName _notification;
 		StringName _script_source;
 		StringName dotctor; // .ctor
@@ -308,14 +309,17 @@ class CSharpLanguage : public ScriptLanguage {
 	int lang_idx;
 
 	Dictionary scripts_metadata;
+	bool scripts_metadata_invalidated;
 
 	// For debug_break and debug_break_parse
 	int _debug_parse_err_line;
 	String _debug_parse_err_file;
 	String _debug_error;
 
+	void _load_scripts_metadata();
+
 	friend class GDMono;
-	void _uninitialize_script_bindings();
+	void _on_scripts_domain_unloaded();
 
 public:
 	StringNameCache string_names;
@@ -340,9 +344,15 @@ public:
 	void reload_assemblies(bool p_soft_reload);
 #endif
 
-	void project_assembly_loaded();
+	_FORCE_INLINE_ Dictionary get_scripts_metadata_or_nothing() {
+		return scripts_metadata_invalidated ? Dictionary() : scripts_metadata;
+	}
 
-	_FORCE_INLINE_ const Dictionary &get_scripts_metadata() { return scripts_metadata; }
+	_FORCE_INLINE_ const Dictionary &get_scripts_metadata() {
+		if (scripts_metadata_invalidated)
+			_load_scripts_metadata();
+		return scripts_metadata;
+	}
 
 	virtual String get_name() const;
 
diff --git a/modules/mono/doc_classes/@C#.xml b/modules/mono/doc_classes/@C#.xml
index 082bc30fd8..826c106d7e 100644
--- a/modules/mono/doc_classes/@C#.xml
+++ b/modules/mono/doc_classes/@C#.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="@C#" category="Core" version="3.1">
+<class name="@C#" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/mono/doc_classes/CSharpScript.xml b/modules/mono/doc_classes/CSharpScript.xml
index a1f7399653..de2e246ea9 100644
--- a/modules/mono/doc_classes/CSharpScript.xml
+++ b/modules/mono/doc_classes/CSharpScript.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="CSharpScript" inherits="Script" category="Core" version="3.1">
+<class name="CSharpScript" inherits="Script" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="new" qualifiers="vararg">
 			<return type="Object">
diff --git a/modules/mono/doc_classes/GodotSharp.xml b/modules/mono/doc_classes/GodotSharp.xml
index 921c1ca825..18556a84ba 100644
--- a/modules/mono/doc_classes/GodotSharp.xml
+++ b/modules/mono/doc_classes/GodotSharp.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="GodotSharp" inherits="Object" category="Core" version="3.1">
+<class name="GodotSharp" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="attach_thread">
 			<return type="void">
diff --git a/modules/mono/editor/bindings_generator.cpp b/modules/mono/editor/bindings_generator.cpp
index 35a89956a8..a408716641 100644
--- a/modules/mono/editor/bindings_generator.cpp
+++ b/modules/mono/editor/bindings_generator.cpp
@@ -38,7 +38,6 @@
 #include "core/os/dir_access.h"
 #include "core/os/file_access.h"
 #include "core/os/os.h"
-#include "core/string_builder.h"
 #include "core/ucaps.h"
 
 #include "../glue/cs_compressed.gen.h"
@@ -98,13 +97,9 @@
 #define C_METHOD_MONOARRAY_TO(m_type) C_NS_MONOMARSHAL "::mono_array_to_" #m_type
 #define C_METHOD_MONOARRAY_FROM(m_type) C_NS_MONOMARSHAL "::" #m_type "_to_mono_array"
 
-#define BINDINGS_GENERATOR_VERSION UINT32_C(8)
+#define BINDINGS_GENERATOR_VERSION UINT32_C(9)
 
-const char *BindingsGenerator::TypeInterface::DEFAULT_VARARG_C_IN = "\t%0 %1_in = %1;\n";
-
-bool BindingsGenerator::verbose_output = false;
-
-BindingsGenerator *BindingsGenerator::singleton = NULL;
+const char *BindingsGenerator::TypeInterface::DEFAULT_VARARG_C_IN("\t%0 %1_in = %1;\n");
 
 static String fix_doc_description(const String &p_bbcode) {
 
@@ -277,7 +272,7 @@ String BindingsGenerator::bbcode_to_xml(const String &p_bbcode, const TypeInterf
 		} else if (code_tag) {
 			xml_output.append("[");
 			pos = brk_pos + 1;
-		} else if (tag.begins_with("method ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ")) {
+		} else if (tag.begins_with("method ") || tag.begins_with("member ") || tag.begins_with("signal ") || tag.begins_with("enum ") || tag.begins_with("constant ")) {
 			String link_target = tag.substr(tag.find(" ") + 1, tag.length());
 			String link_tag = tag.substr(0, tag.find(" "));
 
@@ -386,6 +381,97 @@ String BindingsGenerator::bbcode_to_xml(const String &p_bbcode, const TypeInterf
 					xml_output.append(link_target);
 					xml_output.append("</c>");
 				}
+			} else if (link_tag == "const") {
+				if (!target_itype || !target_itype->is_object_type) {
+					if (OS::get_singleton()->is_stdout_verbose()) {
+						if (target_itype) {
+							OS::get_singleton()->print("Cannot resolve constant reference for non-Godot.Object type in documentation: %s\n", link_target.utf8().get_data());
+						} else {
+							OS::get_singleton()->print("Cannot resolve type from constant reference in documentation: %s\n", link_target.utf8().get_data());
+						}
+					}
+
+					// TODO Map what we can
+					xml_output.append("<c>");
+					xml_output.append(link_target);
+					xml_output.append("</c>");
+				} else if (!target_itype && target_cname == name_cache.type_at_GlobalScope) {
+					String target_name = (String)target_cname;
+
+					// Try to find as a global constant
+					const ConstantInterface *target_iconst = find_constant_by_name(target_name, global_constants);
+
+					if (target_iconst) {
+						// Found global constant
+						xml_output.append("<see cref=\"" BINDINGS_NAMESPACE "." BINDINGS_GLOBAL_SCOPE_CLASS ".");
+						xml_output.append(target_iconst->proxy_name);
+						xml_output.append("\"/>");
+					} else {
+						// Try to find as global enum constant
+						const EnumInterface *target_ienum = NULL;
+
+						for (const List<EnumInterface>::Element *E = global_enums.front(); E; E = E->next()) {
+							target_ienum = &E->get();
+							target_iconst = find_constant_by_name(target_name, target_ienum->constants);
+							if (target_iconst)
+								break;
+						}
+
+						if (target_iconst) {
+							xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
+							xml_output.append(target_ienum->cname);
+							xml_output.append(".");
+							xml_output.append(target_iconst->proxy_name);
+							xml_output.append("\"/>");
+						} else {
+							ERR_PRINTS("Cannot resolve global constant reference in documentation: " + link_target);
+
+							xml_output.append("<c>");
+							xml_output.append(link_target);
+							xml_output.append("</c>");
+						}
+					}
+				} else {
+					String target_name = (String)target_cname;
+
+					// Try to find the constant in the current class
+					const ConstantInterface *target_iconst = find_constant_by_name(target_name, target_itype->constants);
+
+					if (target_iconst) {
+						// Found constant in current class
+						xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
+						xml_output.append(target_itype->proxy_name);
+						xml_output.append(".");
+						xml_output.append(target_iconst->proxy_name);
+						xml_output.append("\"/>");
+					} else {
+						// Try to find as enum constant in the current class
+						const EnumInterface *target_ienum = NULL;
+
+						for (const List<EnumInterface>::Element *E = target_itype->enums.front(); E; E = E->next()) {
+							target_ienum = &E->get();
+							target_iconst = find_constant_by_name(target_name, target_ienum->constants);
+							if (target_iconst)
+								break;
+						}
+
+						if (target_iconst) {
+							xml_output.append("<see cref=\"" BINDINGS_NAMESPACE ".");
+							xml_output.append(target_itype->proxy_name);
+							xml_output.append(".");
+							xml_output.append(target_ienum->cname);
+							xml_output.append(".");
+							xml_output.append(target_iconst->proxy_name);
+							xml_output.append("\"/>");
+						} else {
+							ERR_PRINTS("Cannot resolve constant reference in documentation: " + link_target);
+
+							xml_output.append("<c>");
+							xml_output.append(link_target);
+							xml_output.append("</c>");
+						}
+					}
+				}
 			}
 
 			pos = brk_end + 1;
@@ -414,7 +500,7 @@ String BindingsGenerator::bbcode_to_xml(const String &p_bbcode, const TypeInterf
 			} else if (tag == "Nil") {
 				xml_output.append("<see langword=\"null\"/>");
 			} else if (tag.begins_with("@")) {
-				// @Global Scope, @GDScript, etc
+				// @GlobalScope, @GDScript, etc
 				xml_output.append("<c>");
 				xml_output.append(tag);
 				xml_output.append("</c>");
@@ -666,47 +752,47 @@ void BindingsGenerator::_generate_method_icalls(const TypeInterface &p_itype) {
 	}
 }
 
-void BindingsGenerator::_generate_global_constants(List<String> &p_output) {
+void BindingsGenerator::_generate_global_constants(StringBuilder &p_output) {
 
 	// Constants (in partial GD class)
 
-	p_output.push_back("\n#pragma warning disable CS1591 // Disable warning: "
-					   "'Missing XML comment for publicly visible type or member'\n");
+	p_output.append("\n#pragma warning disable CS1591 // Disable warning: "
+					"'Missing XML comment for publicly visible type or member'\n");
 
-	p_output.push_back("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
-	p_output.push_back(INDENT1 "public static partial class " BINDINGS_GLOBAL_SCOPE_CLASS "\n" INDENT1 "{");
+	p_output.append("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
+	p_output.append(INDENT1 "public static partial class " BINDINGS_GLOBAL_SCOPE_CLASS "\n" INDENT1 "{");
 
 	for (const List<ConstantInterface>::Element *E = global_constants.front(); E; E = E->next()) {
 		const ConstantInterface &iconstant = E->get();
 
 		if (iconstant.const_doc && iconstant.const_doc->description.size()) {
 			String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), NULL);
-			Vector<String> summary_lines = xml_summary.split("\n");
+			Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
 			if (summary_lines.size()) {
-				p_output.push_back(MEMBER_BEGIN "/// <summary>\n");
+				p_output.append(MEMBER_BEGIN "/// <summary>\n");
 
 				for (int i = 0; i < summary_lines.size(); i++) {
-					p_output.push_back(INDENT2 "/// ");
-					p_output.push_back(summary_lines[i]);
-					p_output.push_back("\n");
+					p_output.append(INDENT2 "/// ");
+					p_output.append(summary_lines[i]);
+					p_output.append("\n");
 				}
 
-				p_output.push_back(INDENT2 "/// </summary>");
+				p_output.append(INDENT2 "/// </summary>");
 			}
 		}
 
-		p_output.push_back(MEMBER_BEGIN "public const int ");
-		p_output.push_back(iconstant.proxy_name);
-		p_output.push_back(" = ");
-		p_output.push_back(itos(iconstant.value));
-		p_output.push_back(";");
+		p_output.append(MEMBER_BEGIN "public const int ");
+		p_output.append(iconstant.proxy_name);
+		p_output.append(" = ");
+		p_output.append(itos(iconstant.value));
+		p_output.append(";");
 	}
 
 	if (!global_constants.empty())
-		p_output.push_back("\n");
+		p_output.append("\n");
 
-	p_output.push_back(INDENT1 CLOSE_BLOCK); // end of GD class
+	p_output.append(INDENT1 CLOSE_BLOCK); // end of GD class
 
 	// Enums
 
@@ -726,60 +812,56 @@ void BindingsGenerator::_generate_global_constants(List<String> &p_output) {
 
 			CRASH_COND(enum_class_name != "Variant"); // Hard-coded...
 
-			if (verbose_output) {
-				WARN_PRINTS("Declaring global enum `" + enum_proxy_name + "` inside static class `" + enum_class_name + "`");
-			}
+			_log("Declaring global enum `%s` inside static class `%s`\n", enum_proxy_name.utf8().get_data(), enum_class_name.utf8().get_data());
 
-			p_output.push_back("\n" INDENT1 "public static partial class ");
-			p_output.push_back(enum_class_name);
-			p_output.push_back("\n" INDENT1 OPEN_BLOCK);
+			p_output.append("\n" INDENT1 "public static partial class ");
+			p_output.append(enum_class_name);
+			p_output.append("\n" INDENT1 OPEN_BLOCK);
 		}
 
-		p_output.push_back("\n" INDENT1 "public enum ");
-		p_output.push_back(enum_proxy_name);
-		p_output.push_back("\n" INDENT1 OPEN_BLOCK);
+		p_output.append("\n" INDENT1 "public enum ");
+		p_output.append(enum_proxy_name);
+		p_output.append("\n" INDENT1 OPEN_BLOCK);
 
 		for (const List<ConstantInterface>::Element *F = ienum.constants.front(); F; F = F->next()) {
 			const ConstantInterface &iconstant = F->get();
 
 			if (iconstant.const_doc && iconstant.const_doc->description.size()) {
 				String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), NULL);
-				Vector<String> summary_lines = xml_summary.split("\n");
+				Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
 				if (summary_lines.size()) {
-					p_output.push_back(INDENT2 "/// <summary>\n");
+					p_output.append(INDENT2 "/// <summary>\n");
 
 					for (int i = 0; i < summary_lines.size(); i++) {
-						p_output.push_back(INDENT2 "/// ");
-						p_output.push_back(summary_lines[i]);
-						p_output.push_back("\n");
+						p_output.append(INDENT2 "/// ");
+						p_output.append(summary_lines[i]);
+						p_output.append("\n");
 					}
 
-					p_output.push_back(INDENT2 "/// </summary>\n");
+					p_output.append(INDENT2 "/// </summary>\n");
 				}
 			}
 
-			p_output.push_back(INDENT2);
-			p_output.push_back(iconstant.proxy_name);
-			p_output.push_back(" = ");
-			p_output.push_back(itos(iconstant.value));
-			p_output.push_back(F != ienum.constants.back() ? ",\n" : "\n");
+			p_output.append(INDENT2);
+			p_output.append(iconstant.proxy_name);
+			p_output.append(" = ");
+			p_output.append(itos(iconstant.value));
+			p_output.append(F != ienum.constants.back() ? ",\n" : "\n");
 		}
 
-		p_output.push_back(INDENT1 CLOSE_BLOCK);
+		p_output.append(INDENT1 CLOSE_BLOCK);
 
 		if (enum_in_static_class)
-			p_output.push_back(INDENT1 CLOSE_BLOCK);
+			p_output.append(INDENT1 CLOSE_BLOCK);
 	}
 
-	p_output.push_back(CLOSE_BLOCK); // end of namespace
+	p_output.append(CLOSE_BLOCK); // end of namespace
 
-	p_output.push_back("\n#pragma warning restore CS1591\n");
+	p_output.append("\n#pragma warning restore CS1591\n");
 }
 
-Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir, DotNetSolution &r_solution, bool p_verbose_output) {
-
-	verbose_output = p_verbose_output;
+Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir, DotNetSolution &r_solution) {
 
 	String proj_dir = p_solution_dir.plus_file(CORE_API_ASSEMBLY_NAME);
 
@@ -802,7 +884,7 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 
 	// Generate source file for global scope constants and enums
 	{
-		List<String> constants_source;
+		StringBuilder constants_source;
 		_generate_global_constants(constants_source);
 		String output_file = path_join(core_dir, BINDINGS_GLOBAL_SCOPE_CLASS "_constants.cs");
 		Error save_err = _save_file(output_file, constants_source);
@@ -860,28 +942,28 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 		compile_items.push_back(output_file);
 	}
 
-	List<String> cs_icalls_content;
-
-	cs_icalls_content.push_back("using System;\n"
-								"using System.Runtime.CompilerServices;\n"
-								"\n");
-	cs_icalls_content.push_back("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
-	cs_icalls_content.push_back(INDENT1 "internal static class " BINDINGS_CLASS_NATIVECALLS "\n" INDENT1 OPEN_BLOCK);
-
-	cs_icalls_content.push_back(MEMBER_BEGIN "internal static ulong godot_api_hash = ");
-	cs_icalls_content.push_back(String::num_uint64(GDMono::get_singleton()->get_api_core_hash()) + ";\n");
-	cs_icalls_content.push_back(MEMBER_BEGIN "internal static uint bindings_version = ");
-	cs_icalls_content.push_back(String::num_uint64(BINDINGS_GENERATOR_VERSION) + ";\n");
-	cs_icalls_content.push_back(MEMBER_BEGIN "internal static uint cs_glue_version = ");
-	cs_icalls_content.push_back(String::num_uint64(CS_GLUE_VERSION) + ";\n");
-
-#define ADD_INTERNAL_CALL(m_icall)                                                                  \
-	if (!m_icall.editor_only) {                                                                     \
-		cs_icalls_content.push_back(MEMBER_BEGIN "[MethodImpl(MethodImplOptions.InternalCall)]\n"); \
-		cs_icalls_content.push_back(INDENT2 "internal extern static ");                             \
-		cs_icalls_content.push_back(m_icall.im_type_out + " ");                                     \
-		cs_icalls_content.push_back(m_icall.name + "(");                                            \
-		cs_icalls_content.push_back(m_icall.im_sig + ");\n");                                       \
+	StringBuilder cs_icalls_content;
+
+	cs_icalls_content.append("using System;\n"
+							 "using System.Runtime.CompilerServices;\n"
+							 "\n");
+	cs_icalls_content.append("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
+	cs_icalls_content.append(INDENT1 "internal static class " BINDINGS_CLASS_NATIVECALLS "\n" INDENT1 OPEN_BLOCK);
+
+	cs_icalls_content.append(MEMBER_BEGIN "internal static ulong godot_api_hash = ");
+	cs_icalls_content.append(String::num_uint64(GDMono::get_singleton()->get_api_core_hash()) + ";\n");
+	cs_icalls_content.append(MEMBER_BEGIN "internal static uint bindings_version = ");
+	cs_icalls_content.append(String::num_uint64(BINDINGS_GENERATOR_VERSION) + ";\n");
+	cs_icalls_content.append(MEMBER_BEGIN "internal static uint cs_glue_version = ");
+	cs_icalls_content.append(String::num_uint64(CS_GLUE_VERSION) + ";\n");
+
+#define ADD_INTERNAL_CALL(m_icall)                                                               \
+	if (!m_icall.editor_only) {                                                                  \
+		cs_icalls_content.append(MEMBER_BEGIN "[MethodImpl(MethodImplOptions.InternalCall)]\n"); \
+		cs_icalls_content.append(INDENT2 "internal extern static ");                             \
+		cs_icalls_content.append(m_icall.im_type_out + " ");                                     \
+		cs_icalls_content.append(m_icall.name + "(");                                            \
+		cs_icalls_content.append(m_icall.im_sig + ");\n");                                       \
 	}
 
 	for (const List<InternalCall>::Element *E = core_custom_icalls.front(); E; E = E->next())
@@ -891,7 +973,7 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 
 #undef ADD_INTERNAL_CALL
 
-	cs_icalls_content.push_back(INDENT1 CLOSE_BLOCK CLOSE_BLOCK);
+	cs_icalls_content.append(INDENT1 CLOSE_BLOCK CLOSE_BLOCK);
 
 	String internal_methods_file = path_join(core_dir, BINDINGS_CLASS_NATIVECALLS ".cs");
 
@@ -911,15 +993,12 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 
 	r_solution.add_new_project(CORE_API_ASSEMBLY_NAME, proj_info);
 
-	if (verbose_output)
-		OS::get_singleton()->print("The solution and C# project for the Core API was generated successfully\n");
+	_log("The solution and C# project for the Core API was generated successfully\n");
 
 	return OK;
 }
 
-Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir, DotNetSolution &r_solution, bool p_verbose_output) {
-
-	verbose_output = p_verbose_output;
+Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir, DotNetSolution &r_solution) {
 
 	String proj_dir = p_solution_dir.plus_file(EDITOR_API_ASSEMBLY_NAME);
 
@@ -958,29 +1037,29 @@ Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir
 		compile_items.push_back(output_file);
 	}
 
-	List<String> cs_icalls_content;
-
-	cs_icalls_content.push_back("using System;\n"
-								"using System.Runtime.CompilerServices;\n"
-								"\n");
-	cs_icalls_content.push_back("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
-	cs_icalls_content.push_back(INDENT1 "internal static class " BINDINGS_CLASS_NATIVECALLS_EDITOR "\n" INDENT1 OPEN_BLOCK);
-
-	cs_icalls_content.push_back(INDENT2 "internal static ulong godot_api_hash = ");
-	cs_icalls_content.push_back(String::num_uint64(GDMono::get_singleton()->get_api_editor_hash()) + ";\n");
-	cs_icalls_content.push_back(INDENT2 "internal static uint bindings_version = ");
-	cs_icalls_content.push_back(String::num_uint64(BINDINGS_GENERATOR_VERSION) + ";\n");
-	cs_icalls_content.push_back(INDENT2 "internal static uint cs_glue_version = ");
-	cs_icalls_content.push_back(String::num_uint64(CS_GLUE_VERSION) + ";\n");
-	cs_icalls_content.push_back("\n");
-
-#define ADD_INTERNAL_CALL(m_icall)                                                             \
-	if (m_icall.editor_only) {                                                                 \
-		cs_icalls_content.push_back(INDENT2 "[MethodImpl(MethodImplOptions.InternalCall)]\n"); \
-		cs_icalls_content.push_back(INDENT2 "internal extern static ");                        \
-		cs_icalls_content.push_back(m_icall.im_type_out + " ");                                \
-		cs_icalls_content.push_back(m_icall.name + "(");                                       \
-		cs_icalls_content.push_back(m_icall.im_sig + ");\n");                                  \
+	StringBuilder cs_icalls_content;
+
+	cs_icalls_content.append("using System;\n"
+							 "using System.Runtime.CompilerServices;\n"
+							 "\n");
+	cs_icalls_content.append("namespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
+	cs_icalls_content.append(INDENT1 "internal static class " BINDINGS_CLASS_NATIVECALLS_EDITOR "\n" INDENT1 OPEN_BLOCK);
+
+	cs_icalls_content.append(INDENT2 "internal static ulong godot_api_hash = ");
+	cs_icalls_content.append(String::num_uint64(GDMono::get_singleton()->get_api_editor_hash()) + ";\n");
+	cs_icalls_content.append(INDENT2 "internal static uint bindings_version = ");
+	cs_icalls_content.append(String::num_uint64(BINDINGS_GENERATOR_VERSION) + ";\n");
+	cs_icalls_content.append(INDENT2 "internal static uint cs_glue_version = ");
+	cs_icalls_content.append(String::num_uint64(CS_GLUE_VERSION) + ";\n");
+	cs_icalls_content.append("\n");
+
+#define ADD_INTERNAL_CALL(m_icall)                                                          \
+	if (m_icall.editor_only) {                                                              \
+		cs_icalls_content.append(INDENT2 "[MethodImpl(MethodImplOptions.InternalCall)]\n"); \
+		cs_icalls_content.append(INDENT2 "internal extern static ");                        \
+		cs_icalls_content.append(m_icall.im_type_out + " ");                                \
+		cs_icalls_content.append(m_icall.name + "(");                                       \
+		cs_icalls_content.append(m_icall.im_sig + ");\n");                                  \
 	}
 
 	for (const List<InternalCall>::Element *E = editor_custom_icalls.front(); E; E = E->next())
@@ -990,7 +1069,7 @@ Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir
 
 #undef ADD_INTERNAL_CALL
 
-	cs_icalls_content.push_back(INDENT1 CLOSE_BLOCK CLOSE_BLOCK);
+	cs_icalls_content.append(INDENT1 CLOSE_BLOCK CLOSE_BLOCK);
 
 	String internal_methods_file = path_join(core_dir, BINDINGS_CLASS_NATIVECALLS_EDITOR ".cs");
 
@@ -1010,13 +1089,12 @@ Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir
 
 	r_solution.add_new_project(EDITOR_API_ASSEMBLY_NAME, proj_info);
 
-	if (verbose_output)
-		OS::get_singleton()->print("The solution and C# project for the Editor API was generated successfully\n");
+	_log("The solution and C# project for the Editor API was generated successfully\n");
 
 	return OK;
 }
 
-Error BindingsGenerator::generate_cs_api(const String &p_output_dir, bool p_verbose_output) {
+Error BindingsGenerator::generate_cs_api(const String &p_output_dir) {
 
 	DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 	ERR_FAIL_COND_V(!da, ERR_CANT_CREATE);
@@ -1033,13 +1111,13 @@ Error BindingsGenerator::generate_cs_api(const String &p_output_dir, bool p_verb
 
 	Error proj_err;
 
-	proj_err = generate_cs_core_project(p_output_dir, solution, p_verbose_output);
+	proj_err = generate_cs_core_project(p_output_dir, solution);
 	if (proj_err != OK) {
 		ERR_PRINT("Generation of the Core API C# project failed");
 		return proj_err;
 	}
 
-	proj_err = generate_cs_editor_project(p_output_dir, solution, p_verbose_output);
+	proj_err = generate_cs_editor_project(p_output_dir, solution);
 	if (proj_err != OK) {
 		ERR_PRINT("Generation of the Editor API C# project failed");
 		return proj_err;
@@ -1078,65 +1156,64 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 
 	List<InternalCall> &custom_icalls = itype.api_type == ClassDB::API_EDITOR ? editor_custom_icalls : core_custom_icalls;
 
-	if (verbose_output)
-		OS::get_singleton()->print("Generating %s.cs...\n", itype.proxy_name.utf8().get_data());
+	_log("Generating %s.cs...\n", itype.proxy_name.utf8().get_data());
 
 	String ctor_method(ICALL_PREFIX + itype.proxy_name + "_Ctor"); // Used only for derived types
 
-	List<String> output;
+	StringBuilder output;
 
-	output.push_back("using System;\n"); // IntPtr
-	output.push_back("using System.Diagnostics;\n"); // DebuggerBrowsable
+	output.append("using System;\n"); // IntPtr
+	output.append("using System.Diagnostics;\n"); // DebuggerBrowsable
 
-	output.push_back("\n"
-					 "#pragma warning disable CS1591 // Disable warning: "
-					 "'Missing XML comment for publicly visible type or member'\n"
-					 "#pragma warning disable CS1573 // Disable warning: "
-					 "'Parameter has no matching param tag in the XML comment'\n");
+	output.append("\n"
+				  "#pragma warning disable CS1591 // Disable warning: "
+				  "'Missing XML comment for publicly visible type or member'\n"
+				  "#pragma warning disable CS1573 // Disable warning: "
+				  "'Parameter has no matching param tag in the XML comment'\n");
 
-	output.push_back("\nnamespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
+	output.append("\nnamespace " BINDINGS_NAMESPACE "\n" OPEN_BLOCK);
 
 	const DocData::ClassDoc *class_doc = itype.class_doc;
 
 	if (class_doc && class_doc->description.size()) {
 		String xml_summary = bbcode_to_xml(fix_doc_description(class_doc->description), &itype);
-		Vector<String> summary_lines = xml_summary.split("\n");
+		Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
 		if (summary_lines.size()) {
-			output.push_back(INDENT1 "/// <summary>\n");
+			output.append(INDENT1 "/// <summary>\n");
 
 			for (int i = 0; i < summary_lines.size(); i++) {
-				output.push_back(INDENT1 "/// ");
-				output.push_back(summary_lines[i]);
-				output.push_back("\n");
+				output.append(INDENT1 "/// ");
+				output.append(summary_lines[i]);
+				output.append("\n");
 			}
 
-			output.push_back(INDENT1 "/// </summary>\n");
+			output.append(INDENT1 "/// </summary>\n");
 		}
 	}
 
-	output.push_back(INDENT1 "public ");
+	output.append(INDENT1 "public ");
 	if (itype.is_singleton) {
-		output.push_back("static partial class ");
+		output.append("static partial class ");
 	} else {
-		output.push_back(itype.is_instantiable ? "partial class " : "abstract partial class ");
+		output.append(itype.is_instantiable ? "partial class " : "abstract partial class ");
 	}
-	output.push_back(itype.proxy_name);
+	output.append(itype.proxy_name);
 
 	if (itype.is_singleton) {
-		output.push_back("\n");
+		output.append("\n");
 	} else if (is_derived_type) {
 		if (obj_types.has(itype.base_name)) {
-			output.push_back(" : ");
-			output.push_back(obj_types[itype.base_name].proxy_name);
-			output.push_back("\n");
+			output.append(" : ");
+			output.append(obj_types[itype.base_name].proxy_name);
+			output.append("\n");
 		} else {
 			ERR_PRINTS("Base type '" + itype.base_name.operator String() + "' does not exist, for class " + itype.name);
 			return ERR_INVALID_DATA;
 		}
 	}
 
-	output.push_back(INDENT1 "{");
+	output.append(INDENT1 "{");
 
 	if (class_doc) {
 
@@ -1147,30 +1224,30 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 
 			if (iconstant.const_doc && iconstant.const_doc->description.size()) {
 				String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), &itype);
-				Vector<String> summary_lines = xml_summary.split("\n");
+				Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
 				if (summary_lines.size()) {
-					output.push_back(MEMBER_BEGIN "/// <summary>\n");
+					output.append(MEMBER_BEGIN "/// <summary>\n");
 
 					for (int i = 0; i < summary_lines.size(); i++) {
-						output.push_back(INDENT2 "/// ");
-						output.push_back(summary_lines[i]);
-						output.push_back("\n");
+						output.append(INDENT2 "/// ");
+						output.append(summary_lines[i]);
+						output.append("\n");
 					}
 
-					output.push_back(INDENT2 "/// </summary>");
+					output.append(INDENT2 "/// </summary>");
 				}
 			}
 
-			output.push_back(MEMBER_BEGIN "public const int ");
-			output.push_back(iconstant.proxy_name);
-			output.push_back(" = ");
-			output.push_back(itos(iconstant.value));
-			output.push_back(";");
+			output.append(MEMBER_BEGIN "public const int ");
+			output.append(iconstant.proxy_name);
+			output.append(" = ");
+			output.append(itos(iconstant.value));
+			output.append(";");
 		}
 
 		if (itype.constants.size())
-			output.push_back("\n");
+			output.append("\n");
 
 		// Add enums
 
@@ -1179,38 +1256,38 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 
 			ERR_FAIL_COND_V(ienum.constants.empty(), ERR_BUG);
 
-			output.push_back(MEMBER_BEGIN "public enum ");
-			output.push_back(ienum.cname.operator String());
-			output.push_back(MEMBER_BEGIN OPEN_BLOCK);
+			output.append(MEMBER_BEGIN "public enum ");
+			output.append(ienum.cname.operator String());
+			output.append(MEMBER_BEGIN OPEN_BLOCK);
 
 			for (const List<ConstantInterface>::Element *F = ienum.constants.front(); F; F = F->next()) {
 				const ConstantInterface &iconstant = F->get();
 
 				if (iconstant.const_doc && iconstant.const_doc->description.size()) {
 					String xml_summary = bbcode_to_xml(fix_doc_description(iconstant.const_doc->description), &itype);
-					Vector<String> summary_lines = xml_summary.split("\n");
+					Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
 					if (summary_lines.size()) {
-						output.push_back(INDENT3 "/// <summary>\n");
+						output.append(INDENT3 "/// <summary>\n");
 
 						for (int i = 0; i < summary_lines.size(); i++) {
-							output.push_back(INDENT3 "/// ");
-							output.push_back(summary_lines[i]);
-							output.push_back("\n");
+							output.append(INDENT3 "/// ");
+							output.append(summary_lines[i]);
+							output.append("\n");
 						}
 
-						output.push_back(INDENT3 "/// </summary>\n");
+						output.append(INDENT3 "/// </summary>\n");
 					}
 				}
 
-				output.push_back(INDENT3);
-				output.push_back(iconstant.proxy_name);
-				output.push_back(" = ");
-				output.push_back(itos(iconstant.value));
-				output.push_back(F != ienum.constants.back() ? ",\n" : "\n");
+				output.append(INDENT3);
+				output.append(iconstant.proxy_name);
+				output.append(" = ");
+				output.append(itos(iconstant.value));
+				output.append(F != ienum.constants.back() ? ",\n" : "\n");
 			}
 
-			output.push_back(INDENT2 CLOSE_BLOCK);
+			output.append(INDENT2 CLOSE_BLOCK);
 		}
 
 		// Add properties
@@ -1231,53 +1308,53 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 	if (itype.is_singleton) {
 		// Add the type name and the singleton pointer as static fields
 
-		output.push_back(MEMBER_BEGIN "private static Godot.Object singleton;\n");
-		output.push_back(MEMBER_BEGIN "public static Godot.Object Singleton\n" INDENT2 "{\n" INDENT3
-									  "get\n" INDENT3 "{\n" INDENT4 "if (singleton == null)\n" INDENT5
-									  "singleton = Engine.GetSingleton(" BINDINGS_NATIVE_NAME_FIELD ");\n" INDENT4
-									  "return singleton;\n" INDENT3 "}\n" INDENT2 "}\n");
-
-		output.push_back(MEMBER_BEGIN "private const string " BINDINGS_NATIVE_NAME_FIELD " = \"");
-		output.push_back(itype.name);
-		output.push_back("\";\n");
-
-		output.push_back(INDENT2 "internal static IntPtr " BINDINGS_PTR_FIELD " = ");
-		output.push_back(itype.api_type == ClassDB::API_EDITOR ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS);
-		output.push_back("." ICALL_PREFIX);
-		output.push_back(itype.name);
-		output.push_back(SINGLETON_ICALL_SUFFIX "();\n");
+		output.append(MEMBER_BEGIN "private static Godot.Object singleton;\n");
+		output.append(MEMBER_BEGIN "public static Godot.Object Singleton\n" INDENT2 "{\n" INDENT3
+								   "get\n" INDENT3 "{\n" INDENT4 "if (singleton == null)\n" INDENT5
+								   "singleton = Engine.GetSingleton(" BINDINGS_NATIVE_NAME_FIELD ");\n" INDENT4
+								   "return singleton;\n" INDENT3 "}\n" INDENT2 "}\n");
+
+		output.append(MEMBER_BEGIN "private const string " BINDINGS_NATIVE_NAME_FIELD " = \"");
+		output.append(itype.name);
+		output.append("\";\n");
+
+		output.append(INDENT2 "internal static IntPtr " BINDINGS_PTR_FIELD " = ");
+		output.append(itype.api_type == ClassDB::API_EDITOR ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS);
+		output.append("." ICALL_PREFIX);
+		output.append(itype.name);
+		output.append(SINGLETON_ICALL_SUFFIX "();\n");
 	} else if (is_derived_type) {
 		// Add member fields
 
-		output.push_back(MEMBER_BEGIN "private const string " BINDINGS_NATIVE_NAME_FIELD " = \"");
-		output.push_back(itype.name);
-		output.push_back("\";\n");
+		output.append(MEMBER_BEGIN "private const string " BINDINGS_NATIVE_NAME_FIELD " = \"");
+		output.append(itype.name);
+		output.append("\";\n");
 
 		// Add default constructor
 		if (itype.is_instantiable) {
-			output.push_back(MEMBER_BEGIN "public ");
-			output.push_back(itype.proxy_name);
-			output.push_back("() : this(");
-			output.push_back(itype.memory_own ? "true" : "false");
+			output.append(MEMBER_BEGIN "public ");
+			output.append(itype.proxy_name);
+			output.append("() : this(");
+			output.append(itype.memory_own ? "true" : "false");
 
 			// The default constructor may also be called by the engine when instancing existing native objects
 			// The engine will initialize the pointer field of the managed side before calling the constructor
 			// This is why we only allocate a new native object from the constructor if the pointer field is not set
-			output.push_back(")\n" OPEN_BLOCK_L2 "if (" BINDINGS_PTR_FIELD " == IntPtr.Zero)\n" INDENT4 BINDINGS_PTR_FIELD " = ");
-			output.push_back(itype.api_type == ClassDB::API_EDITOR ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS);
-			output.push_back("." + ctor_method);
-			output.push_back("(this);\n" CLOSE_BLOCK_L2);
+			output.append(")\n" OPEN_BLOCK_L2 "if (" BINDINGS_PTR_FIELD " == IntPtr.Zero)\n" INDENT4 BINDINGS_PTR_FIELD " = ");
+			output.append(itype.api_type == ClassDB::API_EDITOR ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS);
+			output.append("." + ctor_method);
+			output.append("(this);\n" CLOSE_BLOCK_L2);
 		} else {
 			// Hide the constructor
-			output.push_back(MEMBER_BEGIN "internal ");
-			output.push_back(itype.proxy_name);
-			output.push_back("() {}\n");
+			output.append(MEMBER_BEGIN "internal ");
+			output.append(itype.proxy_name);
+			output.append("() {}\n");
 		}
 
 		// Add.. em.. trick constructor. Sort of.
-		output.push_back(MEMBER_BEGIN "internal ");
-		output.push_back(itype.proxy_name);
-		output.push_back("(bool " CS_FIELD_MEMORYOWN ") : base(" CS_FIELD_MEMORYOWN ") {}\n");
+		output.append(MEMBER_BEGIN "internal ");
+		output.append(itype.proxy_name);
+		output.append("(bool " CS_FIELD_MEMORYOWN ") : base(" CS_FIELD_MEMORYOWN ") {}\n");
 	}
 
 	int method_bind_count = 0;
@@ -1304,17 +1381,17 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 			custom_icalls.push_back(ctor_icall);
 	}
 
-	output.push_back(INDENT1 CLOSE_BLOCK /* class */
+	output.append(INDENT1 CLOSE_BLOCK /* class */
 					CLOSE_BLOCK /* namespace */);
 
-	output.push_back("\n"
-					 "#pragma warning restore CS1591\n"
-					 "#pragma warning restore CS1573\n");
+	output.append("\n"
+				  "#pragma warning restore CS1591\n"
+				  "#pragma warning restore CS1573\n");
 
 	return _save_file(p_output_file, output);
 }
 
-Error BindingsGenerator::_generate_cs_property(const BindingsGenerator::TypeInterface &p_itype, const PropertyInterface &p_iprop, List<String> &p_output) {
+Error BindingsGenerator::_generate_cs_property(const BindingsGenerator::TypeInterface &p_itype, const PropertyInterface &p_iprop, StringBuilder &p_output) {
 
 	const MethodInterface *setter = p_itype.find_method_by_name(p_iprop.setter);
 
@@ -1361,72 +1438,94 @@ Error BindingsGenerator::_generate_cs_property(const BindingsGenerator::TypeInte
 
 	if (p_iprop.prop_doc && p_iprop.prop_doc->description.size()) {
 		String xml_summary = bbcode_to_xml(fix_doc_description(p_iprop.prop_doc->description), &p_itype);
-		Vector<String> summary_lines = xml_summary.split("\n");
+		Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
 		if (summary_lines.size()) {
-			p_output.push_back(MEMBER_BEGIN "/// <summary>\n");
+			p_output.append(MEMBER_BEGIN "/// <summary>\n");
 
 			for (int i = 0; i < summary_lines.size(); i++) {
-				p_output.push_back(INDENT2 "/// ");
-				p_output.push_back(summary_lines[i]);
-				p_output.push_back("\n");
+				p_output.append(INDENT2 "/// ");
+				p_output.append(summary_lines[i]);
+				p_output.append("\n");
 			}
 
-			p_output.push_back(INDENT2 "/// </summary>");
+			p_output.append(INDENT2 "/// </summary>");
 		}
 	}
 
-	p_output.push_back(MEMBER_BEGIN "public ");
+	p_output.append(MEMBER_BEGIN "public ");
 
 	if (p_itype.is_singleton)
-		p_output.push_back("static ");
+		p_output.append("static ");
 
-	p_output.push_back(prop_itype->cs_type);
-	p_output.push_back(" ");
-	p_output.push_back(p_iprop.proxy_name);
-	p_output.push_back("\n" INDENT2 OPEN_BLOCK);
+	p_output.append(prop_itype->cs_type);
+	p_output.append(" ");
+	p_output.append(p_iprop.proxy_name);
+	p_output.append("\n" INDENT2 OPEN_BLOCK);
 
 	if (getter) {
-		p_output.push_back(INDENT3 "get\n" OPEN_BLOCK_L3);
-		p_output.push_back("return ");
-		p_output.push_back(getter->proxy_name + "(");
+		p_output.append(INDENT3 "get\n"
+
+								// TODO Remove this once we make accessor methods private/internal (they will no longer be marked as obsolete after that)
+								"#pragma warning disable CS0618 // Disable warning about obsolete method\n"
+
+				OPEN_BLOCK_L3);
+
+		p_output.append("return ");
+		p_output.append(getter->proxy_name + "(");
 		if (p_iprop.index != -1) {
 			const ArgumentInterface &idx_arg = getter->arguments.front()->get();
 			if (idx_arg.type.cname != name_cache.type_int) {
 				// Assume the index parameter is an enum
 				const TypeInterface *idx_arg_type = _get_type_or_null(idx_arg.type);
 				CRASH_COND(idx_arg_type == NULL);
-				p_output.push_back("(" + idx_arg_type->proxy_name + ")" + itos(p_iprop.index));
+				p_output.append("(" + idx_arg_type->proxy_name + ")" + itos(p_iprop.index));
 			} else {
-				p_output.push_back(itos(p_iprop.index));
+				p_output.append(itos(p_iprop.index));
 			}
 		}
-		p_output.push_back(");\n" CLOSE_BLOCK_L3);
+		p_output.append(");\n"
+
+				CLOSE_BLOCK_L3
+
+						// TODO Remove this once we make accessor methods private/internal (they will no longer be marked as obsolete after that)
+						"#pragma warning restore CS0618\n");
 	}
 
 	if (setter) {
-		p_output.push_back(INDENT3 "set\n" OPEN_BLOCK_L3);
-		p_output.push_back(setter->proxy_name + "(");
+		p_output.append(INDENT3 "set\n"
+
+								// TODO Remove this once we make accessor methods private/internal (they will no longer be marked as obsolete after that)
+								"#pragma warning disable CS0618 // Disable warning about obsolete method\n"
+
+				OPEN_BLOCK_L3);
+
+		p_output.append(setter->proxy_name + "(");
 		if (p_iprop.index != -1) {
 			const ArgumentInterface &idx_arg = setter->arguments.front()->get();
 			if (idx_arg.type.cname != name_cache.type_int) {
 				// Assume the index parameter is an enum
 				const TypeInterface *idx_arg_type = _get_type_or_null(idx_arg.type);
 				CRASH_COND(idx_arg_type == NULL);
-				p_output.push_back("(" + idx_arg_type->proxy_name + ")" + itos(p_iprop.index) + ", ");
+				p_output.append("(" + idx_arg_type->proxy_name + ")" + itos(p_iprop.index) + ", ");
 			} else {
-				p_output.push_back(itos(p_iprop.index) + ", ");
+				p_output.append(itos(p_iprop.index) + ", ");
 			}
 		}
-		p_output.push_back("value);\n" CLOSE_BLOCK_L3);
+		p_output.append("value);\n"
+
+				CLOSE_BLOCK_L3
+
+						// TODO Remove this once we make accessor methods private/internal (they will no longer be marked as obsolete after that)
+						"#pragma warning restore CS0618\n");
 	}
 
-	p_output.push_back(CLOSE_BLOCK_L2);
+	p_output.append(CLOSE_BLOCK_L2);
 
 	return OK;
 }
 
-Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterface &p_itype, const BindingsGenerator::MethodInterface &p_imethod, int &p_method_bind_count, List<String> &p_output) {
+Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterface &p_itype, const BindingsGenerator::MethodInterface &p_imethod, int &p_method_bind_count, StringBuilder &p_output) {
 
 	const TypeInterface *return_type = _get_type_or_placeholder(p_imethod.return_type);
 
@@ -1438,7 +1537,7 @@ Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterf
 	String icall_params = method_bind_field + ", ";
 	icall_params += sformat(p_itype.cs_in, "this");
 
-	List<String> default_args_doc;
+	StringBuilder default_args_doc;
 
 	// Retrieve information from the arguments
 	for (const List<ArgumentInterface>::Element *F = p_imethod.arguments.front(); F; F = F->next()) {
@@ -1507,7 +1606,7 @@ Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterf
 			// Apparently the name attribute must not include the @
 			String param_tag_name = iarg.name.begins_with("@") ? iarg.name.substr(1, iarg.name.length()) : iarg.name;
 
-			default_args_doc.push_back(INDENT2 "/// <param name=\"" + param_tag_name + "\">If the parameter is null, then the default value is " + def_arg + "</param>\n");
+			default_args_doc.append(INDENT2 "/// <param name=\"" + param_tag_name + "\">If the parameter is null, then the default value is " + def_arg + "</param>\n");
 		} else {
 			icall_params += arg_type->cs_in.empty() ? iarg.name : sformat(arg_type->cs_in, iarg.name);
 		}
@@ -1516,61 +1615,67 @@ Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterf
 	// Generate method
 	{
 		if (!p_imethod.is_virtual && !p_imethod.requires_object_call) {
-			p_output.push_back(MEMBER_BEGIN "[DebuggerBrowsable(DebuggerBrowsableState.Never)]" MEMBER_BEGIN "private static IntPtr ");
-			p_output.push_back(method_bind_field + " = Object." ICALL_GET_METHODBIND "(" BINDINGS_NATIVE_NAME_FIELD ", \"");
-			p_output.push_back(p_imethod.name);
-			p_output.push_back("\");\n");
+			p_output.append(MEMBER_BEGIN "[DebuggerBrowsable(DebuggerBrowsableState.Never)]" MEMBER_BEGIN "private static IntPtr ");
+			p_output.append(method_bind_field + " = Object." ICALL_GET_METHODBIND "(" BINDINGS_NATIVE_NAME_FIELD ", \"");
+			p_output.append(p_imethod.name);
+			p_output.append("\");\n");
 		}
 
 		if (p_imethod.method_doc && p_imethod.method_doc->description.size()) {
 			String xml_summary = bbcode_to_xml(fix_doc_description(p_imethod.method_doc->description), &p_itype);
-			Vector<String> summary_lines = xml_summary.split("\n");
+			Vector<String> summary_lines = xml_summary.length() ? xml_summary.split("\n") : Vector<String>();
 
-			if (summary_lines.size() || default_args_doc.size()) {
-				p_output.push_back(MEMBER_BEGIN "/// <summary>\n");
+			if (summary_lines.size() || default_args_doc.get_string_length()) {
+				p_output.append(MEMBER_BEGIN "/// <summary>\n");
 
 				for (int i = 0; i < summary_lines.size(); i++) {
-					p_output.push_back(INDENT2 "/// ");
-					p_output.push_back(summary_lines[i]);
-					p_output.push_back("\n");
+					p_output.append(INDENT2 "/// ");
+					p_output.append(summary_lines[i]);
+					p_output.append("\n");
 				}
 
-				for (List<String>::Element *E = default_args_doc.front(); E; E = E->next()) {
-					p_output.push_back(E->get());
-				}
-
-				p_output.push_back(INDENT2 "/// </summary>");
+				p_output.append(default_args_doc.as_string());
+				p_output.append(INDENT2 "/// </summary>");
 			}
 		}
 
 		if (!p_imethod.is_internal) {
-			p_output.push_back(MEMBER_BEGIN "[GodotMethod(\"");
-			p_output.push_back(p_imethod.name);
-			p_output.push_back("\")]");
+			p_output.append(MEMBER_BEGIN "[GodotMethod(\"");
+			p_output.append(p_imethod.name);
+			p_output.append("\")]");
 		}
 
-		p_output.push_back(MEMBER_BEGIN);
-		p_output.push_back(p_imethod.is_internal ? "internal " : "public ");
+		if (p_imethod.is_deprecated) {
+			if (p_imethod.deprecation_message.empty())
+				WARN_PRINTS("An empty deprecation message is discouraged. Method: " + p_imethod.proxy_name);
+
+			p_output.append(MEMBER_BEGIN "[Obsolete(\"");
+			p_output.append(p_imethod.deprecation_message);
+			p_output.append("\")]");
+		}
+
+		p_output.append(MEMBER_BEGIN);
+		p_output.append(p_imethod.is_internal ? "internal " : "public ");
 
 		if (p_itype.is_singleton) {
-			p_output.push_back("static ");
+			p_output.append("static ");
 		} else if (p_imethod.is_virtual) {
-			p_output.push_back("virtual ");
+			p_output.append("virtual ");
 		}
 
-		p_output.push_back(return_type->cs_type + " ");
-		p_output.push_back(p_imethod.proxy_name + "(");
-		p_output.push_back(arguments_sig + ")\n" OPEN_BLOCK_L2);
+		p_output.append(return_type->cs_type + " ");
+		p_output.append(p_imethod.proxy_name + "(");
+		p_output.append(arguments_sig + ")\n" OPEN_BLOCK_L2);
 
 		if (p_imethod.is_virtual) {
 			// Godot virtual method must be overridden, therefore we return a default value by default.
 
 			if (return_type->cname == name_cache.type_void) {
-				p_output.push_back("return;\n" CLOSE_BLOCK_L2);
+				p_output.append("return;\n" CLOSE_BLOCK_L2);
 			} else {
-				p_output.push_back("return default(");
-				p_output.push_back(return_type->cs_type);
-				p_output.push_back(");\n" CLOSE_BLOCK_L2);
+				p_output.append("return default(");
+				p_output.append(return_type->cs_type);
+				p_output.append(");\n" CLOSE_BLOCK_L2);
 			}
 
 			return OK; // Won't increment method bind count
@@ -1579,16 +1684,16 @@ Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterf
 		if (p_imethod.requires_object_call) {
 			// Fallback to Godot's object.Call(string, params)
 
-			p_output.push_back(CS_METHOD_CALL "(\"");
-			p_output.push_back(p_imethod.name);
-			p_output.push_back("\"");
+			p_output.append(CS_METHOD_CALL "(\"");
+			p_output.append(p_imethod.name);
+			p_output.append("\"");
 
 			for (const List<ArgumentInterface>::Element *F = p_imethod.arguments.front(); F; F = F->next()) {
-				p_output.push_back(", ");
-				p_output.push_back(F->get().name);
+				p_output.append(", ");
+				p_output.append(F->get().name);
 			}
 
-			p_output.push_back(");\n" CLOSE_BLOCK_L2);
+			p_output.append(");\n" CLOSE_BLOCK_L2);
 
 			return OK; // Won't increment method bind count
 		}
@@ -1602,37 +1707,36 @@ Error BindingsGenerator::_generate_cs_method(const BindingsGenerator::TypeInterf
 		im_call += "." + im_icall->name + "(" + icall_params + ")";
 
 		if (p_imethod.arguments.size())
-			p_output.push_back(cs_in_statements);
+			p_output.append(cs_in_statements);
 
 		if (return_type->cname == name_cache.type_void) {
-			p_output.push_back(im_call + ";\n");
+			p_output.append(im_call + ";\n");
 		} else if (return_type->cs_out.empty()) {
-			p_output.push_back("return " + im_call + ";\n");
+			p_output.append("return " + im_call + ";\n");
 		} else {
-			p_output.push_back(sformat(return_type->cs_out, im_call, return_type->cs_type, return_type->im_type_out));
-			p_output.push_back("\n");
+			p_output.append(sformat(return_type->cs_out, im_call, return_type->cs_type, return_type->im_type_out));
+			p_output.append("\n");
 		}
 
-		p_output.push_back(CLOSE_BLOCK_L2);
+		p_output.append(CLOSE_BLOCK_L2);
 	}
 
 	p_method_bind_count++;
+
 	return OK;
 }
 
 Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 
-	verbose_output = true;
-
 	bool dir_exists = DirAccess::exists(p_output_dir);
 	ERR_EXPLAIN("The output directory does not exist.");
 	ERR_FAIL_COND_V(!dir_exists, ERR_FILE_BAD_PATH);
 
-	List<String> output;
+	StringBuilder output;
 
-	output.push_back("/* THIS FILE IS GENERATED DO NOT EDIT */\n");
-	output.push_back("#include \"" GLUE_HEADER_FILE "\"\n");
-	output.push_back("\n#ifdef MONO_GLUE_ENABLED\n");
+	output.append("/* THIS FILE IS GENERATED DO NOT EDIT */\n");
+	output.append("#include \"" GLUE_HEADER_FILE "\"\n");
+	output.append("\n#ifdef MONO_GLUE_ENABLED\n");
 
 	generated_icall_funcs.clear();
 
@@ -1672,11 +1776,11 @@ Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 			if (!find_icall_by_name(singleton_icall.name, custom_icalls))
 				custom_icalls.push_back(singleton_icall);
 
-			output.push_back("Object* ");
-			output.push_back(singleton_icall_name);
-			output.push_back("() " OPEN_BLOCK "\treturn Engine::get_singleton()->get_singleton_object(\"");
-			output.push_back(itype.proxy_name);
-			output.push_back("\");\n" CLOSE_BLOCK "\n");
+			output.append("Object* ");
+			output.append(singleton_icall_name);
+			output.append("() " OPEN_BLOCK "\treturn Engine::get_singleton()->get_singleton_object(\"");
+			output.append(itype.proxy_name);
+			output.append("\");\n" CLOSE_BLOCK "\n");
 		}
 
 		if (is_derived_type && itype.is_instantiable) {
@@ -1685,43 +1789,43 @@ Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 			if (!find_icall_by_name(ctor_icall.name, custom_icalls))
 				custom_icalls.push_back(ctor_icall);
 
-			output.push_back("Object* ");
-			output.push_back(ctor_method);
-			output.push_back("(MonoObject* obj) " OPEN_BLOCK
-							 "\t" C_MACRO_OBJECT_CONSTRUCT "(instance, \"");
-			output.push_back(itype.name);
-			output.push_back("\");\n"
-							 "\t" C_METHOD_TIE_MANAGED_TO_UNMANAGED "(obj, instance);\n"
-							 "\treturn instance;\n" CLOSE_BLOCK "\n");
+			output.append("Object* ");
+			output.append(ctor_method);
+			output.append("(MonoObject* obj) " OPEN_BLOCK
+						  "\t" C_MACRO_OBJECT_CONSTRUCT "(instance, \"");
+			output.append(itype.name);
+			output.append("\");\n"
+						  "\t" C_METHOD_TIE_MANAGED_TO_UNMANAGED "(obj, instance);\n"
+						  "\treturn instance;\n" CLOSE_BLOCK "\n");
 		}
 	}
 
-	output.push_back("namespace GodotSharpBindings\n" OPEN_BLOCK "\n");
+	output.append("namespace GodotSharpBindings\n" OPEN_BLOCK "\n");
 
-	output.push_back("uint64_t get_core_api_hash() { return ");
-	output.push_back(String::num_uint64(GDMono::get_singleton()->get_api_core_hash()) + "U; }\n");
+	output.append("uint64_t get_core_api_hash() { return ");
+	output.append(String::num_uint64(GDMono::get_singleton()->get_api_core_hash()) + "U; }\n");
 
-	output.push_back("#ifdef TOOLS_ENABLED\n"
-					 "uint64_t get_editor_api_hash() { return ");
-	output.push_back(String::num_uint64(GDMono::get_singleton()->get_api_editor_hash()) + "U; }\n");
-	output.push_back("#endif // TOOLS_ENABLED\n");
+	output.append("#ifdef TOOLS_ENABLED\n"
+				  "uint64_t get_editor_api_hash() { return ");
+	output.append(String::num_uint64(GDMono::get_singleton()->get_api_editor_hash()) + "U; }\n");
+	output.append("#endif // TOOLS_ENABLED\n");
 
-	output.push_back("uint32_t get_bindings_version() { return ");
-	output.push_back(String::num_uint64(BINDINGS_GENERATOR_VERSION) + "; }\n");
+	output.append("uint32_t get_bindings_version() { return ");
+	output.append(String::num_uint64(BINDINGS_GENERATOR_VERSION) + "; }\n");
 
-	output.push_back("\nvoid register_generated_icalls() " OPEN_BLOCK);
-	output.push_back("\tgodot_register_glue_header_icalls();\n");
+	output.append("\nvoid register_generated_icalls() " OPEN_BLOCK);
+	output.append("\tgodot_register_glue_header_icalls();\n");
 
-#define ADD_INTERNAL_CALL_REGISTRATION(m_icall)                                                                 \
-	{                                                                                                           \
-		output.push_back("\tmono_add_internal_call(");                                                          \
-		output.push_back("\"" BINDINGS_NAMESPACE ".");                                                          \
-		output.push_back(m_icall.editor_only ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS); \
-		output.push_back("::");                                                                                 \
-		output.push_back(m_icall.name);                                                                         \
-		output.push_back("\", (void*)");                                                                        \
-		output.push_back(m_icall.name);                                                                         \
-		output.push_back(");\n");                                                                               \
+#define ADD_INTERNAL_CALL_REGISTRATION(m_icall)                                                              \
+	{                                                                                                        \
+		output.append("\tmono_add_internal_call(");                                                          \
+		output.append("\"" BINDINGS_NAMESPACE ".");                                                          \
+		output.append(m_icall.editor_only ? BINDINGS_CLASS_NATIVECALLS_EDITOR : BINDINGS_CLASS_NATIVECALLS); \
+		output.append("::");                                                                                 \
+		output.append(m_icall.name);                                                                         \
+		output.append("\", (void*)");                                                                        \
+		output.append(m_icall.name);                                                                         \
+		output.append(");\n");                                                                               \
 	}
 
 	bool tools_sequence = false;
@@ -1730,11 +1834,11 @@ Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 		if (tools_sequence) {
 			if (!E->get().editor_only) {
 				tools_sequence = false;
-				output.push_back("#endif\n");
+				output.append("#endif\n");
 			}
 		} else {
 			if (E->get().editor_only) {
-				output.push_back("#ifdef TOOLS_ENABLED\n");
+				output.append("#ifdef TOOLS_ENABLED\n");
 				tools_sequence = true;
 			}
 		}
@@ -1744,23 +1848,23 @@ Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 
 	if (tools_sequence) {
 		tools_sequence = false;
-		output.push_back("#endif\n");
+		output.append("#endif\n");
 	}
 
-	output.push_back("#ifdef TOOLS_ENABLED\n");
+	output.append("#ifdef TOOLS_ENABLED\n");
 	for (const List<InternalCall>::Element *E = editor_custom_icalls.front(); E; E = E->next())
 		ADD_INTERNAL_CALL_REGISTRATION(E->get());
-	output.push_back("#endif // TOOLS_ENABLED\n");
+	output.append("#endif // TOOLS_ENABLED\n");
 
 	for (const List<InternalCall>::Element *E = method_icalls.front(); E; E = E->next()) {
 		if (tools_sequence) {
 			if (!E->get().editor_only) {
 				tools_sequence = false;
-				output.push_back("#endif\n");
+				output.append("#endif\n");
 			}
 		} else {
 			if (E->get().editor_only) {
-				output.push_back("#ifdef TOOLS_ENABLED\n");
+				output.append("#ifdef TOOLS_ENABLED\n");
 				tools_sequence = true;
 			}
 		}
@@ -1770,14 +1874,14 @@ Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 
 	if (tools_sequence) {
 		tools_sequence = false;
-		output.push_back("#endif\n");
+		output.append("#endif\n");
 	}
 
 #undef ADD_INTERNAL_CALL_REGISTRATION
 
-	output.push_back(CLOSE_BLOCK "\n} // namespace GodotSharpBindings\n");
+	output.append(CLOSE_BLOCK "\n} // namespace GodotSharpBindings\n");
 
-	output.push_back("\n#endif // MONO_GLUE_ENABLED\n");
+	output.append("\n#endif // MONO_GLUE_ENABLED\n");
 
 	Error save_err = _save_file(path_join(p_output_dir, "mono_glue.gen.cpp"), output);
 	if (save_err != OK)
@@ -1792,23 +1896,20 @@ uint32_t BindingsGenerator::get_version() {
 	return BINDINGS_GENERATOR_VERSION;
 }
 
-Error BindingsGenerator::_save_file(const String &p_path, const List<String> &p_content) {
+Error BindingsGenerator::_save_file(const String &p_path, const StringBuilder &p_content) {
 
 	FileAccessRef file = FileAccess::open(p_path, FileAccess::WRITE);
 
 	ERR_EXPLAIN("Cannot open file: " + p_path);
 	ERR_FAIL_COND_V(!file, ERR_FILE_CANT_WRITE);
 
-	for (const List<String>::Element *E = p_content.front(); E; E = E->next()) {
-		file->store_string(E->get());
-	}
-
+	file->store_string(p_content.as_string());
 	file->close();
 
 	return OK;
 }
 
-Error BindingsGenerator::_generate_glue_method(const BindingsGenerator::TypeInterface &p_itype, const BindingsGenerator::MethodInterface &p_imethod, List<String> &p_output) {
+Error BindingsGenerator::_generate_glue_method(const BindingsGenerator::TypeInterface &p_itype, const BindingsGenerator::MethodInterface &p_imethod, StringBuilder &p_output) {
 
 	if (p_imethod.is_virtual)
 		return OK; // Ignore
@@ -1864,15 +1965,15 @@ Error BindingsGenerator::_generate_glue_method(const BindingsGenerator::TypeInte
 		generated_icall_funcs.push_back(im_icall);
 
 		if (im_icall->editor_only)
-			p_output.push_back("#ifdef TOOLS_ENABLED\n");
+			p_output.append("#ifdef TOOLS_ENABLED\n");
 
 		// Generate icall function
 
-		p_output.push_back(ret_void ? "void " : return_type->c_type_out + " ");
-		p_output.push_back(icall_method);
-		p_output.push_back("(");
-		p_output.push_back(c_func_sig);
-		p_output.push_back(") " OPEN_BLOCK);
+		p_output.append(ret_void ? "void " : return_type->c_type_out + " ");
+		p_output.append(icall_method);
+		p_output.append("(");
+		p_output.append(c_func_sig);
+		p_output.append(") " OPEN_BLOCK);
 
 		String fail_ret = ret_void ? "" : ", " + (return_type->c_type_out.ends_with("*") ? "NULL" : return_type->c_type_out + "()");
 
@@ -1886,7 +1987,7 @@ Error BindingsGenerator::_generate_glue_method(const BindingsGenerator::TypeInte
 				// the Variant alive until the method returns. Otherwise, if the returned Variant holds a RefPtr,
 				// it could be deleted too early. This is the case with GDScript.new() which returns OBJECT.
 				// Alternatively, we could just return Variant, but that would result in a worse API.
-				p_output.push_back("\tVariant " C_LOCAL_VARARG_RET ";\n");
+				p_output.append("\tVariant " C_LOCAL_VARARG_RET ";\n");
 			}
 
 			if (return_type->is_object_type) {
@@ -1896,83 +1997,82 @@ Error BindingsGenerator::_generate_glue_method(const BindingsGenerator::TypeInte
 				ptrcall_return_type = return_type->c_type;
 			}
 
-			p_output.push_back("\t" + ptrcall_return_type);
-			p_output.push_back(" " C_LOCAL_RET);
-			p_output.push_back(initialization + ";\n");
-			p_output.push_back("\tERR_FAIL_NULL_V(" CS_PARAM_INSTANCE);
-			p_output.push_back(fail_ret);
-			p_output.push_back(");\n");
+			p_output.append("\t" + ptrcall_return_type);
+			p_output.append(" " C_LOCAL_RET);
+			p_output.append(initialization + ";\n");
+			p_output.append("\tERR_FAIL_NULL_V(" CS_PARAM_INSTANCE);
+			p_output.append(fail_ret);
+			p_output.append(");\n");
 		} else {
-			p_output.push_back("\tERR_FAIL_NULL(" CS_PARAM_INSTANCE ");\n");
+			p_output.append("\tERR_FAIL_NULL(" CS_PARAM_INSTANCE ");\n");
 		}
 
 		if (p_imethod.arguments.size()) {
 			if (p_imethod.is_vararg) {
-				String err_fail_macro = ret_void ? "ERR_FAIL_COND" : "ERR_FAIL_COND_V";
 				String vararg_arg = "arg" + argc_str;
 				String real_argc_str = itos(p_imethod.arguments.size() - 1); // Arguments count without vararg
 
-				p_output.push_back("\tint vararg_length = mono_array_length(");
-				p_output.push_back(vararg_arg);
-				p_output.push_back(");\n\tint total_length = ");
-				p_output.push_back(real_argc_str);
-				p_output.push_back(" + vararg_length;\n"
-								   "\tArgumentsVector<Variant> varargs(vararg_length);\n"
-								   "\tArgumentsVector<const Variant *> " C_LOCAL_PTRCALL_ARGS "(total_length);\n");
-				p_output.push_back(c_in_statements);
-				p_output.push_back("\tfor (int i = 0; i < vararg_length; i++) " OPEN_BLOCK
-								   "\t\tMonoObject* elem = mono_array_get(");
-				p_output.push_back(vararg_arg);
-				p_output.push_back(", MonoObject*, i);\n"
-								   "\t\tvarargs.set(i, GDMonoMarshal::mono_object_to_variant(elem));\n"
-								   "\t\t" C_LOCAL_PTRCALL_ARGS ".set(");
-				p_output.push_back(real_argc_str);
-				p_output.push_back(" + i, &varargs.get(i));\n\t" CLOSE_BLOCK);
+				p_output.append("\tint vararg_length = mono_array_length(");
+				p_output.append(vararg_arg);
+				p_output.append(");\n\tint total_length = ");
+				p_output.append(real_argc_str);
+				p_output.append(" + vararg_length;\n"
+								"\tArgumentsVector<Variant> varargs(vararg_length);\n"
+								"\tArgumentsVector<const Variant *> " C_LOCAL_PTRCALL_ARGS "(total_length);\n");
+				p_output.append(c_in_statements);
+				p_output.append("\tfor (int i = 0; i < vararg_length; i++) " OPEN_BLOCK
+								"\t\tMonoObject* elem = mono_array_get(");
+				p_output.append(vararg_arg);
+				p_output.append(", MonoObject*, i);\n"
+								"\t\tvarargs.set(i, GDMonoMarshal::mono_object_to_variant(elem));\n"
+								"\t\t" C_LOCAL_PTRCALL_ARGS ".set(");
+				p_output.append(real_argc_str);
+				p_output.append(" + i, &varargs.get(i));\n\t" CLOSE_BLOCK);
 			} else {
-				p_output.push_back(c_in_statements);
-				p_output.push_back("\tconst void* " C_LOCAL_PTRCALL_ARGS "[");
-				p_output.push_back(argc_str + "] = { ");
-				p_output.push_back(c_args_var_content + " };\n");
+				p_output.append(c_in_statements);
+				p_output.append("\tconst void* " C_LOCAL_PTRCALL_ARGS "[");
+				p_output.append(argc_str + "] = { ");
+				p_output.append(c_args_var_content + " };\n");
 			}
 		}
 
 		if (p_imethod.is_vararg) {
-			p_output.push_back("\tVariant::CallError vcall_error;\n\t");
+			p_output.append("\tVariant::CallError vcall_error;\n\t");
 
 			if (!ret_void) {
 				// See the comment on the C_LOCAL_VARARG_RET declaration
 				if (return_type->cname != name_cache.type_Variant) {
-					p_output.push_back(C_LOCAL_VARARG_RET " = ");
+					p_output.append(C_LOCAL_VARARG_RET " = ");
 				} else {
-					p_output.push_back(C_LOCAL_RET " = ");
+					p_output.append(C_LOCAL_RET " = ");
 				}
 			}
 
-			p_output.push_back(CS_PARAM_METHODBIND "->call(" CS_PARAM_INSTANCE ", ");
-			p_output.push_back(p_imethod.arguments.size() ? C_LOCAL_PTRCALL_ARGS ".ptr()" : "NULL");
-			p_output.push_back(", total_length, vcall_error);\n");
+			p_output.append(CS_PARAM_METHODBIND "->call(" CS_PARAM_INSTANCE ", ");
+			p_output.append(p_imethod.arguments.size() ? C_LOCAL_PTRCALL_ARGS ".ptr()" : "NULL");
+			p_output.append(", total_length, vcall_error);\n");
 
 			// See the comment on the C_LOCAL_VARARG_RET declaration
 			if (return_type->cname != name_cache.type_Variant) {
-				p_output.push_back("\t" C_LOCAL_RET " = " C_LOCAL_VARARG_RET ";\n");
+				p_output.append("\t" C_LOCAL_RET " = " C_LOCAL_VARARG_RET ";\n");
 			}
 		} else {
-			p_output.push_back("\t" CS_PARAM_METHODBIND "->ptrcall(" CS_PARAM_INSTANCE ", ");
-			p_output.push_back(p_imethod.arguments.size() ? C_LOCAL_PTRCALL_ARGS ", " : "NULL, ");
-			p_output.push_back(!ret_void ? "&" C_LOCAL_RET ");\n" : "NULL);\n");
+			p_output.append("\t" CS_PARAM_METHODBIND "->ptrcall(" CS_PARAM_INSTANCE ", ");
+			p_output.append(p_imethod.arguments.size() ? C_LOCAL_PTRCALL_ARGS ", " : "NULL, ");
+			p_output.append(!ret_void ? "&" C_LOCAL_RET ");\n" : "NULL);\n");
 		}
 
 		if (!ret_void) {
 			if (return_type->c_out.empty())
-				p_output.push_back("\treturn " C_LOCAL_RET ";\n");
+				p_output.append("\treturn " C_LOCAL_RET ";\n");
 			else
-				p_output.push_back(sformat(return_type->c_out, return_type->c_type_out, C_LOCAL_RET, return_type->name));
+				p_output.append(sformat(return_type->c_out, return_type->c_type_out, C_LOCAL_RET, return_type->name));
 		}
 
-		p_output.push_back(CLOSE_BLOCK "\n");
+		p_output.append(CLOSE_BLOCK "\n");
 
 		if (im_icall->editor_only)
-			p_output.push_back("#endif // TOOLS_ENABLED\n");
+			p_output.append("#endif // TOOLS_ENABLED\n");
 	}
 
 	return OK;
@@ -2025,6 +2125,58 @@ const BindingsGenerator::TypeInterface *BindingsGenerator::_get_type_or_placehol
 	return &placeholder_types.insert(placeholder.cname, placeholder)->get();
 }
 
+StringName BindingsGenerator::_get_int_type_name_from_meta(GodotTypeInfo::Metadata p_meta) {
+
+	switch (p_meta) {
+		case GodotTypeInfo::METADATA_INT_IS_INT8:
+			return "sbyte";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_INT16:
+			return "short";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_INT32:
+			return "int";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_INT64:
+			return "long";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_UINT8:
+			return "byte";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_UINT16:
+			return "ushort";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_UINT32:
+			return "uint";
+			break;
+		case GodotTypeInfo::METADATA_INT_IS_UINT64:
+			return "ulong";
+			break;
+		default:
+			// Assume INT32
+			return "int";
+	}
+}
+
+StringName BindingsGenerator::_get_float_type_name_from_meta(GodotTypeInfo::Metadata p_meta) {
+
+	switch (p_meta) {
+		case GodotTypeInfo::METADATA_REAL_IS_FLOAT:
+			return "float";
+			break;
+		case GodotTypeInfo::METADATA_REAL_IS_DOUBLE:
+			return "double";
+			break;
+		default:
+			// Assume real_t (float or double depending of REAL_T_IS_DOUBLE)
+#ifdef REAL_T_IS_DOUBLE
+			return "double";
+#else
+			return "float";
+#endif
+	}
+}
+
 void BindingsGenerator::_populate_object_type_interfaces() {
 
 	obj_types.clear();
@@ -2044,15 +2196,13 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 		}
 
 		if (!ClassDB::is_class_exposed(type_cname)) {
-			if (verbose_output)
-				WARN_PRINTS("Ignoring type " + type_cname.operator String() + " because it's not exposed");
+			_log("Ignoring type `%s` because it's not exposed\n", String(type_cname).utf8().get_data());
 			class_list.pop_front();
 			continue;
 		}
 
 		if (!ClassDB::is_class_enabled(type_cname)) {
-			if (verbose_output)
-				WARN_PRINTS("Ignoring type " + type_cname.operator String() + " because it's not enabled");
+			_log("Ignoring type `%s` because it's not enabled\n", String(type_cname).utf8().get_data());
 			class_list.pop_front();
 			continue;
 		}
@@ -2080,10 +2230,12 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 		itype.im_type_in = "IntPtr";
 		itype.im_type_out = itype.proxy_name;
 
+		// Populate properties
+
 		List<PropertyInfo> property_list;
 		ClassDB::get_property_list(type_cname, &property_list, true);
 
-		// Populate properties
+		Map<StringName, StringName> accessor_methods;
 
 		for (const List<PropertyInfo>::Element *E = property_list.front(); E; E = E->next()) {
 			const PropertyInfo &property = E->get();
@@ -2096,18 +2248,21 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 			iprop.setter = ClassDB::get_property_setter(type_cname, iprop.cname);
 			iprop.getter = ClassDB::get_property_getter(type_cname, iprop.cname);
 
+			if (iprop.setter != StringName())
+				accessor_methods[iprop.setter] = iprop.cname;
+			if (iprop.getter != StringName())
+				accessor_methods[iprop.getter] = iprop.cname;
+
 			bool valid = false;
 			iprop.index = ClassDB::get_property_index(type_cname, iprop.cname, &valid);
 			ERR_FAIL_COND(!valid);
 
 			iprop.proxy_name = escape_csharp_keyword(snake_to_pascal_case(iprop.cname));
 
-			// Prevent property and enclosing type from sharing the same name
+			// Prevent the property and its enclosing type from sharing the same name
 			if (iprop.proxy_name == itype.proxy_name) {
-				if (verbose_output) {
-					WARN_PRINTS("Name of property `" + iprop.proxy_name + "` is ambiguous with the name of its class `" +
-								itype.proxy_name + "`. Renaming property to `" + iprop.proxy_name + "_`");
-				}
+				_log("Name of property `%s` is ambiguous with the name of its enclosing class `%s`. Renaming property to `%s_`\n",
+						iprop.proxy_name.utf8().get_data(), itype.proxy_name.utf8().get_data(), iprop.proxy_name.utf8().get_data());
 
 				iprop.proxy_name += "_";
 			}
@@ -2174,14 +2329,13 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 					// which could actually will return something different.
 					// Let's put this to notify us if that ever happens.
 					if (itype.cname != name_cache.type_Object || imethod.name != "free") {
-						if (verbose_output) {
-							WARN_PRINTS("Notification: New unexpected virtual non-overridable method found.\n"
-										"We only expected Object.free, but found " +
-										itype.name + "." + imethod.name);
-						}
+						ERR_PRINTS("Notification: New unexpected virtual non-overridable method found.\n"
+								   "We only expected Object.free, but found " +
+								   itype.name + "." + imethod.name);
 					}
 				} else {
-					ERR_PRINTS("Missing MethodBind for non-virtual method: " + itype.name + "." + imethod.name);
+					ERR_EXPLAIN("Missing MethodBind for non-virtual method: " + itype.name + "." + imethod.name);
+					ERR_FAIL();
 				}
 			} else if (return_info.type == Variant::INT && return_info.usage & PROPERTY_USAGE_CLASS_IS_ENUM) {
 				imethod.return_type.cname = return_info.class_name;
@@ -2195,7 +2349,13 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 			} else if (return_info.type == Variant::NIL) {
 				imethod.return_type.cname = name_cache.type_void;
 			} else {
-				imethod.return_type.cname = Variant::get_type_name(return_info.type);
+				if (return_info.type == Variant::INT) {
+					imethod.return_type.cname = _get_int_type_name_from_meta(m ? m->get_argument_meta(-1) : GodotTypeInfo::METADATA_NONE);
+				} else if (return_info.type == Variant::REAL) {
+					imethod.return_type.cname = _get_float_type_name_from_meta(m ? m->get_argument_meta(-1) : GodotTypeInfo::METADATA_NONE);
+				} else {
+					imethod.return_type.cname = Variant::get_type_name(return_info.type);
+				}
 			}
 
 			for (int i = 0; i < argc; i++) {
@@ -2214,7 +2374,13 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 				} else if (arginfo.type == Variant::NIL) {
 					iarg.type.cname = name_cache.type_Variant;
 				} else {
-					iarg.type.cname = Variant::get_type_name(arginfo.type);
+					if (arginfo.type == Variant::INT) {
+						iarg.type.cname = _get_int_type_name_from_meta(m ? m->get_argument_meta(i) : GodotTypeInfo::METADATA_NONE);
+					} else if (arginfo.type == Variant::REAL) {
+						iarg.type.cname = _get_float_type_name_from_meta(m ? m->get_argument_meta(i) : GodotTypeInfo::METADATA_NONE);
+					} else {
+						iarg.type.cname = Variant::get_type_name(arginfo.type);
+					}
 				}
 
 				iarg.name = escape_csharp_keyword(snake_to_camel_case(iarg.name));
@@ -2235,16 +2401,24 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 
 			imethod.proxy_name = escape_csharp_keyword(snake_to_pascal_case(imethod.name));
 
-			// Prevent naming the property and its enclosing type from sharing the same name
+			// Prevent the method and its enclosing type from sharing the same name
 			if (imethod.proxy_name == itype.proxy_name) {
-				if (verbose_output) {
-					WARN_PRINTS("Name of method `" + imethod.proxy_name + "` is ambiguous with the name of its class `" +
-								itype.proxy_name + "`. Renaming method to `" + imethod.proxy_name + "_`");
-				}
+				_log("Name of method `%s` is ambiguous with the name of its enclosing class `%s`. Renaming method to `%s_`\n",
+						imethod.proxy_name.utf8().get_data(), itype.proxy_name.utf8().get_data(), imethod.proxy_name.utf8().get_data());
 
 				imethod.proxy_name += "_";
 			}
 
+			Map<StringName, StringName>::Element *accessor = accessor_methods.find(imethod.cname);
+			if (accessor) {
+				const PropertyInterface *accessor_property = itype.find_property_by_name(accessor->value());
+
+				// We only deprecate an accessor method if it's in the same class as the property. It's easier this way, but also
+				// we don't know if an accessor method in a different class could have other purposes, so better leave those untouched.
+				imethod.is_deprecated = true;
+				imethod.deprecation_message = imethod.proxy_name + " is deprecated. Use the " + accessor_property->proxy_name + " property instead.";
+			}
+
 			if (itype.class_doc) {
 				for (int i = 0; i < itype.class_doc->methods.size(); i++) {
 					if (itype.class_doc->methods[i].name == imethod.name) {
@@ -2271,8 +2445,8 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 
 		// Populate enums and constants
 
-		List<String> constant_list;
-		ClassDB::get_integer_constant_list(type_cname, &constant_list, true);
+		List<String> constants;
+		ClassDB::get_integer_constant_list(type_cname, &constants, true);
 
 		const HashMap<StringName, List<StringName> > &enum_map = class_info->enum_map;
 		const StringName *k = NULL;
@@ -2287,13 +2461,13 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 				enum_proxy_cname = StringName(enum_proxy_name);
 			}
 			EnumInterface ienum(enum_proxy_cname);
-			const List<StringName> &constants = enum_map.get(*k);
-			for (const List<StringName>::Element *E = constants.front(); E; E = E->next()) {
+			const List<StringName> &enum_constants = enum_map.get(*k);
+			for (const List<StringName>::Element *E = enum_constants.front(); E; E = E->next()) {
 				const StringName &constant_cname = E->get();
 				String constant_name = constant_cname.operator String();
 				int *value = class_info->constant_map.getptr(constant_cname);
 				ERR_FAIL_NULL(value);
-				constant_list.erase(constant_name);
+				constants.erase(constant_name);
 
 				ConstantInterface iconstant(constant_name, snake_to_pascal_case(constant_name, true), *value);
 
@@ -2325,7 +2499,7 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 			enum_types.insert(enum_itype.cname, enum_itype);
 		}
 
-		for (const List<String>::Element *E = constant_list.front(); E; E = E->next()) {
+		for (const List<String>::Element *E = constants.front(); E; E = E->next()) {
 			const String &constant_name = E->get();
 			int *value = class_info->constant_map.getptr(StringName(E->get()));
 			ERR_FAIL_NULL(value);
@@ -2406,6 +2580,7 @@ void BindingsGenerator::_default_argument_from_variant(const Variant &p_val, Arg
 				r_iarg.default_argument = "null";
 				break;
 			}
+			FALLTHROUGH;
 		case Variant::DICTIONARY:
 		case Variant::_RID:
 			r_iarg.default_argument = "new %s()";
@@ -2428,7 +2603,8 @@ void BindingsGenerator::_default_argument_from_variant(const Variant &p_val, Arg
 			r_iarg.default_argument = Variant::get_type_name(p_val.get_type()) + ".Identity";
 			r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
 			break;
-		default: {}
+		default: {
+		}
 	}
 
 	if (r_iarg.def_param_mode == ArgumentInterface::CONSTANT && r_iarg.type.cname == name_cache.type_Variant && r_iarg.default_argument != "null")
@@ -2470,7 +2646,6 @@ void BindingsGenerator::_populate_builtin_type_interfaces() {
 
 	// bool
 	itype = TypeInterface::create_value_type(String("bool"));
-
 	{
 		// MonoBoolean <---> bool
 		itype.c_in = "\t%0 %1_in = (%0)%1;\n";
@@ -2484,45 +2659,73 @@ void BindingsGenerator::_populate_builtin_type_interfaces() {
 	itype.im_type_out = itype.name;
 	builtin_types.insert(itype.cname, itype);
 
-	// int
-	// C interface is the same as that of enums. Remember to apply any
-	// changes done here to TypeInterface::postsetup_enum_type as well
-	itype = TypeInterface::create_value_type(String("int"));
-	itype.c_arg_in = "&%s_in";
+	// Integer types
 	{
-		// The expected types for parameters and return value in ptrcall are 'int64_t' or 'uint64_t'.
-		itype.c_in = "\t%0 %1_in = (%0)%1;\n";
-		itype.c_out = "\treturn (%0)%1;\n";
-		itype.c_type = "int64_t";
+		// C interface for 'uint32_t' is the same as that of enums. Remember to apply
+		// any of the changes done here to 'TypeInterface::postsetup_enum_type' as well.
+#define INSERT_INT_TYPE(m_name, m_c_type_in_out, m_c_type)        \
+	{                                                             \
+		itype = TypeInterface::create_value_type(String(m_name)); \
+		{                                                         \
+			itype.c_in = "\t%0 %1_in = (%0)%1;\n";                \
+			itype.c_out = "\treturn (%0)%1;\n";                   \
+			itype.c_type = #m_c_type;                             \
+			itype.c_arg_in = "&%s_in";                            \
+		}                                                         \
+		itype.c_type_in = #m_c_type_in_out;                       \
+		itype.c_type_out = itype.c_type_in;                       \
+		itype.im_type_in = itype.name;                            \
+		itype.im_type_out = itype.name;                           \
+		builtin_types.insert(itype.cname, itype);                 \
 	}
-	itype.c_type_in = "int32_t";
-	itype.c_type_out = itype.c_type_in;
-	itype.im_type_in = itype.name;
-	itype.im_type_out = itype.name;
-	builtin_types.insert(itype.cname, itype);
 
-	// real_t
-	itype = TypeInterface();
-	itype.name = "float"; // The name is always "float" in Variant, even with REAL_T_IS_DOUBLE.
-	itype.cname = itype.name;
-#ifdef REAL_T_IS_DOUBLE
-	itype.proxy_name = "double";
-#else
-	itype.proxy_name = "float";
-#endif
+		// The expected type for all integers in ptrcall is 'int64_t', so that's what we use for 'c_type'
+
+		INSERT_INT_TYPE("sbyte", int8_t, int64_t);
+		INSERT_INT_TYPE("short", int16_t, int64_t);
+		INSERT_INT_TYPE("int", int32_t, int64_t);
+		INSERT_INT_TYPE("long", int64_t, int64_t);
+		INSERT_INT_TYPE("byte", uint8_t, int64_t);
+		INSERT_INT_TYPE("ushort", uint16_t, int64_t);
+		INSERT_INT_TYPE("uint", uint32_t, int64_t);
+		INSERT_INT_TYPE("ulong", uint64_t, int64_t);
+	}
+
+	// Floating point types
 	{
-		// The expected type for parameters and return value in ptrcall is 'double'.
-		itype.c_in = "\t%0 %1_in = (%0)%1;\n";
-		itype.c_out = "\treturn (%0)%1;\n";
+		// float
+		itype = TypeInterface();
+		itype.name = "float";
+		itype.cname = itype.name;
+		itype.proxy_name = "float";
+		{
+			// The expected type for 'float' in ptrcall is 'double'
+			itype.c_in = "\t%0 %1_in = (%0)%1;\n";
+			itype.c_out = "\treturn (%0)%1;\n";
+			itype.c_type = "double";
+			itype.c_type_in = "float";
+			itype.c_type_out = "float";
+			itype.c_arg_in = "&%s_in";
+		}
+		itype.cs_type = itype.proxy_name;
+		itype.im_type_in = itype.proxy_name;
+		itype.im_type_out = itype.proxy_name;
+		builtin_types.insert(itype.cname, itype);
+
+		// double
+		itype = TypeInterface();
+		itype.name = "double";
+		itype.cname = itype.name;
+		itype.proxy_name = "double";
 		itype.c_type = "double";
-		itype.c_type_in = "real_t";
-		itype.c_type_out = "real_t";
-		itype.c_arg_in = "&%s_in";
+		itype.c_type_in = "double";
+		itype.c_type_out = "double";
+		itype.c_arg_in = "&%s";
+		itype.cs_type = itype.proxy_name;
+		itype.im_type_in = itype.proxy_name;
+		itype.im_type_out = itype.proxy_name;
+		builtin_types.insert(itype.cname, itype);
 	}
-	itype.cs_type = itype.proxy_name;
-	itype.im_type_in = itype.proxy_name;
-	itype.im_type_out = itype.proxy_name;
-	builtin_types.insert(itype.cname, itype);
 
 	// String
 	itype = TypeInterface();
@@ -2772,7 +2975,18 @@ void BindingsGenerator::_populate_global_constants() {
 	}
 }
 
-void BindingsGenerator::initialize() {
+void BindingsGenerator::_log(const char *p_format, ...) {
+
+	if (log_print_enabled) {
+		va_list list;
+
+		va_start(list, p_format);
+		OS::get_singleton()->print("%s", str_format(p_format, list).utf8().get_data());
+		va_end(list);
+	}
+}
+
+void BindingsGenerator::_initialize() {
 
 	EditorHelp::generate_doc();
 
@@ -2795,38 +3009,33 @@ void BindingsGenerator::initialize() {
 void BindingsGenerator::handle_cmdline_args(const List<String> &p_cmdline_args) {
 
 	const int NUM_OPTIONS = 2;
-	int options_left = NUM_OPTIONS;
-
 	String mono_glue_option = "--generate-mono-glue";
 	String cs_api_option = "--generate-cs-api";
 
-	verbose_output = true;
+	String mono_glue_path;
+	String cs_api_path;
+
+	int options_left = NUM_OPTIONS;
 
 	const List<String>::Element *elem = p_cmdline_args.front();
 
 	while (elem && options_left) {
-
 		if (elem->get() == mono_glue_option) {
-
 			const List<String>::Element *path_elem = elem->next();
 
 			if (path_elem) {
-				if (get_singleton()->generate_glue(path_elem->get()) != OK)
-					ERR_PRINTS(mono_glue_option + ": Failed to generate mono glue");
+				mono_glue_path = path_elem->get();
 				elem = elem->next();
 			} else {
 				ERR_PRINTS(mono_glue_option + ": No output directory specified");
 			}
 
 			--options_left;
-
 		} else if (elem->get() == cs_api_option) {
-
 			const List<String>::Element *path_elem = elem->next();
 
 			if (path_elem) {
-				if (get_singleton()->generate_cs_api(path_elem->get()) != OK)
-					ERR_PRINTS(cs_api_option + ": Failed to generate the C# API");
+				cs_api_path = path_elem->get();
 				elem = elem->next();
 			} else {
 				ERR_PRINTS(cs_api_option + ": No output directory specified");
@@ -2838,10 +3047,23 @@ void BindingsGenerator::handle_cmdline_args(const List<String> &p_cmdline_args)
 		elem = elem->next();
 	}
 
-	verbose_output = false;
+	if (mono_glue_path.length() || cs_api_path.length()) {
+		BindingsGenerator bindings_generator;
+		bindings_generator.set_log_print_enabled(true);
+
+		if (mono_glue_path.length()) {
+			if (bindings_generator.generate_glue(mono_glue_path) != OK)
+				ERR_PRINTS(mono_glue_option + ": Failed to generate mono glue");
+		}
+
+		if (cs_api_path.length()) {
+			if (bindings_generator.generate_cs_api(cs_api_path) != OK)
+				ERR_PRINTS(cs_api_option + ": Failed to generate the C# API");
+		}
 
-	if (options_left != NUM_OPTIONS)
+		// Exit once done
 		::exit(0);
+	}
 }
 
 #endif
diff --git a/modules/mono/editor/bindings_generator.h b/modules/mono/editor/bindings_generator.h
index 7eaebeabbd..bdba28c267 100644
--- a/modules/mono/editor/bindings_generator.h
+++ b/modules/mono/editor/bindings_generator.h
@@ -32,6 +32,7 @@
 #define BINDINGS_GENERATOR_H
 
 #include "core/class_db.h"
+#include "core/string_builder.h"
 #include "dotnet_solution.h"
 #include "editor/doc/doc_data.h"
 #include "editor/editor_help.h"
@@ -158,17 +159,20 @@ class BindingsGenerator {
 
 		const DocData::MethodDoc *method_doc;
 
+		bool is_deprecated;
+		String deprecation_message;
+
 		void add_argument(const ArgumentInterface &argument) {
 			arguments.push_back(argument);
 		}
 
 		MethodInterface() {
-			return_type.cname = BindingsGenerator::get_singleton()->name_cache.type_void;
 			is_vararg = false;
 			is_virtual = false;
 			requires_object_call = false;
 			is_internal = false;
 			method_doc = NULL;
+			is_deprecated = false;
 		}
 	};
 
@@ -399,8 +403,8 @@ class BindingsGenerator {
 		}
 
 		static void postsetup_enum_type(TypeInterface &r_enum_itype) {
-			// C interface is the same as that of 'int'. Remember to apply any
-			// changes done here to the 'int' type interface as well
+			// C interface for enums is the same as that of 'uint32_t'. Remember to apply
+			// any of the changes done here to the 'uint32_t' type interface as well.
 
 			r_enum_itype.c_arg_in = "&%s_in";
 			{
@@ -468,7 +472,7 @@ class BindingsGenerator {
 		}
 	};
 
-	static bool verbose_output;
+	bool log_print_enabled;
 
 	OrderedHashMap<StringName, TypeInterface> obj_types;
 
@@ -489,7 +493,6 @@ class BindingsGenerator {
 
 	struct NameCache {
 		StringName type_void;
-		StringName type_int;
 		StringName type_Array;
 		StringName type_Dictionary;
 		StringName type_Variant;
@@ -497,11 +500,22 @@ class BindingsGenerator {
 		StringName type_Object;
 		StringName type_Reference;
 		StringName type_String;
+		StringName type_at_GlobalScope;
 		StringName enum_Error;
 
+		StringName type_sbyte;
+		StringName type_short;
+		StringName type_int;
+		StringName type_long;
+		StringName type_byte;
+		StringName type_ushort;
+		StringName type_uint;
+		StringName type_ulong;
+		StringName type_float;
+		StringName type_double;
+
 		NameCache() {
 			type_void = StaticCString::create("void");
-			type_int = StaticCString::create("int");
 			type_Array = StaticCString::create("Array");
 			type_Dictionary = StaticCString::create("Dictionary");
 			type_Variant = StaticCString::create("Variant");
@@ -509,9 +523,22 @@ class BindingsGenerator {
 			type_Object = StaticCString::create("Object");
 			type_Reference = StaticCString::create("Reference");
 			type_String = StaticCString::create("String");
+			type_at_GlobalScope = StaticCString::create("@GlobalScope");
 			enum_Error = StaticCString::create("Error");
+
+			type_sbyte = StaticCString::create("sbyte");
+			type_short = StaticCString::create("short");
+			type_int = StaticCString::create("int");
+			type_long = StaticCString::create("long");
+			type_byte = StaticCString::create("byte");
+			type_ushort = StaticCString::create("ushort");
+			type_uint = StaticCString::create("uint");
+			type_ulong = StaticCString::create("ulong");
+			type_float = StaticCString::create("float");
+			type_double = StaticCString::create("double");
 		}
 
+	private:
 		NameCache(const NameCache &);
 		NameCache &operator=(const NameCache &);
 	};
@@ -527,6 +554,15 @@ class BindingsGenerator {
 		return NULL;
 	}
 
+	const ConstantInterface *find_constant_by_name(const String &p_name, const List<ConstantInterface> &p_constants) const {
+		for (const List<ConstantInterface>::Element *E = p_constants.front(); E; E = E->next()) {
+			if (E->get().name == p_name)
+				return &E->get();
+		}
+
+		return NULL;
+	}
+
 	inline String get_unique_sig(const TypeInterface &p_type) {
 		if (p_type.is_reference)
 			return "Ref";
@@ -548,6 +584,9 @@ class BindingsGenerator {
 	const TypeInterface *_get_type_or_null(const TypeReference &p_typeref);
 	const TypeInterface *_get_type_or_placeholder(const TypeReference &p_typeref);
 
+	StringName _get_int_type_name_from_meta(GodotTypeInfo::Metadata p_meta);
+	StringName _get_float_type_name_from_meta(GodotTypeInfo::Metadata p_meta);
+
 	void _default_argument_from_variant(const Variant &p_val, ArgumentInterface &r_iarg);
 
 	void _populate_object_type_interfaces();
@@ -557,42 +596,35 @@ class BindingsGenerator {
 
 	Error _generate_cs_type(const TypeInterface &itype, const String &p_output_file);
 
-	Error _generate_cs_property(const TypeInterface &p_itype, const PropertyInterface &p_iprop, List<String> &p_output);
-	Error _generate_cs_method(const TypeInterface &p_itype, const MethodInterface &p_imethod, int &p_method_bind_count, List<String> &p_output);
-
-	void _generate_global_constants(List<String> &p_output);
+	Error _generate_cs_property(const TypeInterface &p_itype, const PropertyInterface &p_iprop, StringBuilder &p_output);
+	Error _generate_cs_method(const TypeInterface &p_itype, const MethodInterface &p_imethod, int &p_method_bind_count, StringBuilder &p_output);
 
-	Error _generate_glue_method(const TypeInterface &p_itype, const MethodInterface &p_imethod, List<String> &p_output);
+	void _generate_global_constants(StringBuilder &p_output);
 
-	Error _save_file(const String &p_path, const List<String> &p_content);
+	Error _generate_glue_method(const TypeInterface &p_itype, const MethodInterface &p_imethod, StringBuilder &p_output);
 
-	BindingsGenerator() {}
+	Error _save_file(const String &p_path, const StringBuilder &p_content);
 
-	BindingsGenerator(const BindingsGenerator &);
-	BindingsGenerator &operator=(const BindingsGenerator &);
+	void _log(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_2_3;
 
-	friend class CSharpLanguage;
-	static BindingsGenerator *singleton;
+	void _initialize();
 
 public:
-	Error generate_cs_core_project(const String &p_solution_dir, DotNetSolution &r_solution, bool p_verbose_output = true);
-	Error generate_cs_editor_project(const String &p_solution_dir, DotNetSolution &r_solution, bool p_verbose_output = true);
-	Error generate_cs_api(const String &p_output_dir, bool p_verbose_output = true);
+	Error generate_cs_core_project(const String &p_solution_dir, DotNetSolution &r_solution);
+	Error generate_cs_editor_project(const String &p_solution_dir, DotNetSolution &r_solution);
+	Error generate_cs_api(const String &p_output_dir);
 	Error generate_glue(const String &p_output_dir);
 
+	void set_log_print_enabled(bool p_enabled) { log_print_enabled = p_enabled; }
+
 	static uint32_t get_version();
 
-	void initialize();
+	static void handle_cmdline_args(const List<String> &p_cmdline_args);
 
-	_FORCE_INLINE_ static BindingsGenerator *get_singleton() {
-		if (!singleton) {
-			singleton = memnew(BindingsGenerator);
-			singleton->initialize();
-		}
-		return singleton;
+	BindingsGenerator() :
+			log_print_enabled(true) {
+		_initialize();
 	}
-
-	static void handle_cmdline_args(const List<String> &p_cmdline_args);
 };
 
 #endif
diff --git a/modules/mono/editor/csharp_project.cpp b/modules/mono/editor/csharp_project.cpp
index beeff51bc2..fe79286556 100644
--- a/modules/mono/editor/csharp_project.cpp
+++ b/modules/mono/editor/csharp_project.cpp
@@ -158,7 +158,7 @@ Error generate_scripts_metadata(const String &p_project_path, const String &p_ou
 	PoolStringArray project_files = GDMonoMarshal::mono_array_to_PoolStringArray(ret);
 	PoolStringArray::Read r = project_files.read();
 
-	Dictionary old_dict = CSharpLanguage::get_singleton()->get_scripts_metadata();
+	Dictionary old_dict = CSharpLanguage::get_singleton()->get_scripts_metadata_or_nothing();
 	Dictionary new_dict;
 
 	for (int i = 0; i < project_files.size(); i++) {
diff --git a/modules/mono/editor/godotsharp_builds.cpp b/modules/mono/editor/godotsharp_builds.cpp
index 00c780d1b7..de3fd91223 100644
--- a/modules/mono/editor/godotsharp_builds.cpp
+++ b/modules/mono/editor/godotsharp_builds.cpp
@@ -323,10 +323,13 @@ bool GodotSharpBuilds::make_api_assembly(APIAssembly::Type p_api_type) {
 	String api_sln_file = api_sln_dir.plus_file(API_SOLUTION_NAME ".sln");
 
 	if (!DirAccess::exists(api_sln_dir) || !FileAccess::exists(api_sln_file)) {
-		BindingsGenerator *gen = BindingsGenerator::get_singleton();
-		bool gen_verbose = OS::get_singleton()->is_stdout_verbose();
+		BindingsGenerator bindings_generator;
 
-		Error err = gen->generate_cs_api(api_sln_dir, gen_verbose);
+		if (!OS::get_singleton()->is_stdout_verbose()) {
+			bindings_generator.set_log_print_enabled(false);
+		}
+
+		Error err = bindings_generator.generate_cs_api(api_sln_dir);
 		if (err != OK) {
 			show_build_error_dialog("Failed to generate " API_SOLUTION_NAME " solution. Error: " + itos(err));
 			return false;
diff --git a/modules/mono/editor/godotsharp_editor.cpp b/modules/mono/editor/godotsharp_editor.cpp
index 921b9f987b..9d42528927 100644
--- a/modules/mono/editor/godotsharp_editor.cpp
+++ b/modules/mono/editor/godotsharp_editor.cpp
@@ -502,11 +502,11 @@ GodotSharpEditor::GodotSharpEditor(EditorNode *p_editor) {
 
 	String settings_hint_str = "Disabled";
 
-#ifdef WINDOWS_ENABLED
+#if defined(WINDOWS_ENABLED)
 	settings_hint_str += ",MonoDevelop,Visual Studio Code";
-#elif OSX_ENABLED
+#elif defined(OSX_ENABLED)
 	settings_hint_str += ",Visual Studio,MonoDevelop,Visual Studio Code";
-#elif UNIX_ENABLED
+#elif defined(UNIX_ENABLED)
 	settings_hint_str += ",MonoDevelop,Visual Studio Code";
 #endif
 
diff --git a/modules/mono/editor/godotsharp_editor.h b/modules/mono/editor/godotsharp_editor.h
index cf0d2aec84..d9523c384c 100644
--- a/modules/mono/editor/godotsharp_editor.h
+++ b/modules/mono/editor/godotsharp_editor.h
@@ -81,15 +81,15 @@ public:
 
 	enum ExternalEditor {
 		EDITOR_NONE,
-#ifdef WINDOWS_ENABLED
+#if defined(WINDOWS_ENABLED)
 		//EDITOR_VISUALSTUDIO, // TODO
 		EDITOR_MONODEVELOP,
 		EDITOR_VSCODE
-#elif OSX_ENABLED
+#elif defined(OSX_ENABLED)
 		EDITOR_VISUALSTUDIO_MAC,
 		EDITOR_MONODEVELOP,
 		EDITOR_VSCODE
-#elif UNIX_ENABLED
+#elif defined(UNIX_ENABLED)
 		EDITOR_MONODEVELOP,
 		EDITOR_VSCODE
 #endif
diff --git a/modules/mono/glue/Managed/Files/Array.cs b/modules/mono/glue/Managed/Files/Array.cs
index 1ee64f3b71..0e7b0362e0 100644
--- a/modules/mono/glue/Managed/Files/Array.cs
+++ b/modules/mono/glue/Managed/Files/Array.cs
@@ -28,7 +28,7 @@ namespace Godot.Collections
         }
     }
 
-    public class Array : IList<object>, ICollection<object>, IEnumerable<object>, IDisposable
+    public class Array : IList, IDisposable
     {
         ArraySafeHandle safeHandle;
         bool disposed = false;
@@ -38,6 +38,14 @@ namespace Godot.Collections
             safeHandle = new ArraySafeHandle(godot_icall_Array_Ctor());
         }
 
+        public Array(IEnumerable collection) : this()
+        {
+            if (collection == null)
+                throw new NullReferenceException($"Parameter '{nameof(collection)} cannot be null.'");
+
+            MarshalUtils.EnumerableToArray(collection, GetPtr());
+        }
+
         internal Array(ArraySafeHandle handle)
         {
             safeHandle = handle;
@@ -56,6 +64,13 @@ namespace Godot.Collections
             return safeHandle.DangerousGetHandle();
         }
 
+        public Error Resize(int newSize)
+        {
+            return godot_icall_Array_Resize(GetPtr(), newSize);
+        }
+
+        // IDisposable
+
         public void Dispose()
         {
             if (disposed)
@@ -70,62 +85,55 @@ namespace Godot.Collections
             disposed = true;
         }
 
+        // IList
+
+        public bool IsReadOnly => false;
+
+        public bool IsFixedSize => false;
+
         public object this[int index]
         {
-            get
-            {
-                return godot_icall_Array_At(GetPtr(), index);
-            }
-            set
-            {
-                godot_icall_Array_SetAt(GetPtr(), index, value);
-            }
+            get => godot_icall_Array_At(GetPtr(), index);
+            set => godot_icall_Array_SetAt(GetPtr(), index, value);
         }
 
-        public int Count
-        {
-            get
-            {
-                return godot_icall_Array_Count(GetPtr());
-            }
-        }
+        public int Add(object value) => godot_icall_Array_Add(GetPtr(), value);
 
-        public bool IsReadOnly
-        {
-            get
-            {
-                return false;
-            }
-        }
+        public bool Contains(object value) => godot_icall_Array_Contains(GetPtr(), value);
 
-        public void Add(object item)
-        {
-            godot_icall_Array_Add(GetPtr(), item);
-        }
+        public void Clear() => godot_icall_Array_Clear(GetPtr());
 
-        public void Clear()
-        {
-            godot_icall_Array_Clear(GetPtr());
-        }
+        public int IndexOf(object value) => godot_icall_Array_IndexOf(GetPtr(), value);
 
-        public bool Contains(object item)
-        {
-            return godot_icall_Array_Contains(GetPtr(), item);
-        }
+        public void Insert(int index, object value) => godot_icall_Array_Insert(GetPtr(), index, value);
+
+        public void Remove(object value) => godot_icall_Array_Remove(GetPtr(), value);
+
+        public void RemoveAt(int index) => godot_icall_Array_RemoveAt(GetPtr(), index);
+
+        // ICollection
+
+        public int Count => godot_icall_Array_Count(GetPtr());
+
+        public object SyncRoot => this;
 
-        public void CopyTo(object[] array, int arrayIndex)
+        public bool IsSynchronized => false;
+
+        public void CopyTo(System.Array array, int index)
         {
             if (array == null)
                 throw new ArgumentNullException(nameof(array), "Value cannot be null.");
 
-            if (arrayIndex < 0)
-                throw new ArgumentOutOfRangeException(nameof(arrayIndex), "Number was less than the array's lower bound in the first dimension.");
+            if (index < 0)
+                throw new ArgumentOutOfRangeException(nameof(index), "Number was less than the array's lower bound in the first dimension.");
 
             // Internal call may throw ArgumentException
-            godot_icall_Array_CopyTo(GetPtr(), array, arrayIndex);
+            godot_icall_Array_CopyTo(GetPtr(), array, index);
         }
 
-        public IEnumerator<object> GetEnumerator()
+        // IEnumerable
+
+        public IEnumerator GetEnumerator()
         {
             int count = Count;
 
@@ -135,34 +143,9 @@ namespace Godot.Collections
             }
         }
 
-        public int IndexOf(object item)
+        public override string ToString()
         {
-            return godot_icall_Array_IndexOf(GetPtr(), item);
-        }
-
-        public void Insert(int index, object item)
-        {
-            godot_icall_Array_Insert(GetPtr(), index, item);
-        }
-
-        public bool Remove(object item)
-        {
-            return godot_icall_Array_Remove(GetPtr(), item);
-        }
-
-        public void RemoveAt(int index)
-        {
-            godot_icall_Array_RemoveAt(GetPtr(), index);
-        }
-
-        public Error Resize(int newSize)
-        {
-            return godot_icall_Array_Resize(GetPtr(), newSize);
-        }
-
-        IEnumerator IEnumerable.GetEnumerator()
-        {
-            return GetEnumerator();
+            return godot_icall_Array_ToString(GetPtr());
         }
 
         [MethodImpl(MethodImplOptions.InternalCall)]
@@ -184,7 +167,7 @@ namespace Godot.Collections
         internal extern static int godot_icall_Array_Count(IntPtr ptr);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static void godot_icall_Array_Add(IntPtr ptr, object item);
+        internal extern static int godot_icall_Array_Add(IntPtr ptr, object item);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static void godot_icall_Array_Clear(IntPtr ptr);
@@ -193,7 +176,7 @@ namespace Godot.Collections
         internal extern static bool godot_icall_Array_Contains(IntPtr ptr, object item);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static void godot_icall_Array_CopyTo(IntPtr ptr, object[] array, int arrayIndex);
+        internal extern static void godot_icall_Array_CopyTo(IntPtr ptr, System.Array array, int arrayIndex);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static int godot_icall_Array_IndexOf(IntPtr ptr, object item);
@@ -212,6 +195,9 @@ namespace Godot.Collections
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static void godot_icall_Array_Generic_GetElementTypeInfo(Type elemType, out int elemTypeEncoding, out IntPtr elemTypeClass);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        internal extern static string godot_icall_Array_ToString(IntPtr ptr);
     }
 
     public class Array<T> : IList<T>, ICollection<T>, IEnumerable<T>
@@ -231,6 +217,14 @@ namespace Godot.Collections
             objectArray = new Array();
         }
 
+        public Array(IEnumerable<T> collection)
+        {
+            if (collection == null)
+                throw new NullReferenceException($"Parameter '{nameof(collection)} cannot be null.'");
+
+            objectArray = new Array(collection);
+        }
+
         public Array(Array array)
         {
             objectArray = array;
@@ -246,11 +240,23 @@ namespace Godot.Collections
             objectArray = new Array(handle);
         }
 
+        internal IntPtr GetPtr()
+        {
+            return objectArray.GetPtr();
+        }
+
         public static explicit operator Array(Array<T> from)
         {
             return from.objectArray;
         }
 
+        public Error Resize(int newSize)
+        {
+            return objectArray.Resize(newSize);
+        }
+
+        // IList<T>
+
         public T this[int index]
         {
             get
@@ -263,6 +269,23 @@ namespace Godot.Collections
             }
         }
 
+        public int IndexOf(T item)
+        {
+            return objectArray.IndexOf(item);
+        }
+
+        public void Insert(int index, T item)
+        {
+            objectArray.Insert(index, item);
+        }
+
+        public void RemoveAt(int index)
+        {
+            objectArray.RemoveAt(index);
+        }
+
+        // ICollection<T>
+
         public int Count
         {
             get
@@ -317,6 +340,13 @@ namespace Godot.Collections
             }
         }
 
+        public bool Remove(T item)
+        {
+            return Array.godot_icall_Array_Remove(GetPtr(), item);
+        }
+
+        // IEnumerable<T>
+
         public IEnumerator<T> GetEnumerator()
         {
             int count = objectArray.Count;
@@ -327,39 +357,11 @@ namespace Godot.Collections
             }
         }
 
-        public int IndexOf(T item)
-        {
-            return objectArray.IndexOf(item);
-        }
-
-        public void Insert(int index, T item)
-        {
-            objectArray.Insert(index, item);
-        }
-
-        public bool Remove(T item)
-        {
-            return objectArray.Remove(item);
-        }
-
-        public void RemoveAt(int index)
-        {
-            objectArray.RemoveAt(index);
-        }
-
-        public Error Resize(int newSize)
-        {
-            return objectArray.Resize(newSize);
-        }
-
         IEnumerator IEnumerable.GetEnumerator()
         {
             return GetEnumerator();
         }
 
-        internal IntPtr GetPtr()
-        {
-            return objectArray.GetPtr();
-        }
+        public override string ToString() => objectArray.ToString();
     }
 }
diff --git a/modules/mono/glue/Managed/Files/Color.cs b/modules/mono/glue/Managed/Files/Color.cs
index 88fa3323c2..84ff19fc54 100644
--- a/modules/mono/glue/Managed/Files/Color.cs
+++ b/modules/mono/glue/Managed/Files/Color.cs
@@ -168,7 +168,7 @@ namespace Godot
             int max = Mathf.Max(color.r8, Mathf.Max(color.g8, color.b8));
             int min = Mathf.Min(color.r8, Mathf.Min(color.g8, color.b8));
 
-            float delta = max - min;
+            int delta = max - min;
 
             if (delta == 0)
             {
@@ -591,11 +591,11 @@ namespace Godot
 
         public static bool operator <(Color left, Color right)
         {
-            if (left.r == right.r)
+            if (Mathf.IsEqualApprox(left.r, right.r))
             {
-                if (left.g == right.g)
+                if (Mathf.IsEqualApprox(left.g, right.g))
                 {
-                    if (left.b == right.b)
+                    if (Mathf.IsEqualApprox(left.b, right.b))
                         return left.a < right.a;
                     return left.b < right.b;
                 }
@@ -608,11 +608,11 @@ namespace Godot
 
         public static bool operator >(Color left, Color right)
         {
-            if (left.r == right.r)
+            if (Mathf.IsEqualApprox(left.r, right.r))
             {
-                if (left.g == right.g)
+                if (Mathf.IsEqualApprox(left.g, right.g))
                 {
-                    if (left.b == right.b)
+                    if (Mathf.IsEqualApprox(left.b, right.b))
                         return left.a > right.a;
                     return left.b > right.b;
                 }
@@ -635,7 +635,7 @@ namespace Godot
 
         public bool Equals(Color other)
         {
-            return r == other.r && g == other.g && b == other.b && a == other.a;
+            return Mathf.IsEqualApprox(r, other.r) && Mathf.IsEqualApprox(g, other.g) && Mathf.IsEqualApprox(b, other.b) && Mathf.IsEqualApprox(a, other.a);
         }
 
         public override int GetHashCode()
diff --git a/modules/mono/glue/Managed/Files/Dictionary.cs b/modules/mono/glue/Managed/Files/Dictionary.cs
index fb4521065f..6ab8549a01 100644
--- a/modules/mono/glue/Managed/Files/Dictionary.cs
+++ b/modules/mono/glue/Managed/Files/Dictionary.cs
@@ -29,9 +29,7 @@ namespace Godot.Collections
     }
 
     public class Dictionary :
-        IDictionary<object, object>,
-        ICollection<KeyValuePair<object, object>>,
-        IEnumerable<KeyValuePair<object, object>>,
+        IDictionary,
         IDisposable
     {
         DictionarySafeHandle safeHandle;
@@ -42,6 +40,14 @@ namespace Godot.Collections
             safeHandle = new DictionarySafeHandle(godot_icall_Dictionary_Ctor());
         }
 
+        public Dictionary(IDictionary dictionary) : this()
+        {
+            if (dictionary == null)
+                throw new NullReferenceException($"Parameter '{nameof(dictionary)} cannot be null.'");
+
+            MarshalUtils.IDictionaryToDictionary(dictionary, GetPtr());
+        }
+
         internal Dictionary(DictionarySafeHandle handle)
         {
             safeHandle = handle;
@@ -74,19 +80,9 @@ namespace Godot.Collections
             disposed = true;
         }
 
-        public object this[object key]
-        {
-            get
-            {
-                return godot_icall_Dictionary_GetValue(GetPtr(), key);
-            }
-            set
-            {
-                godot_icall_Dictionary_SetValue(GetPtr(), key, value);
-            }
-        }
+        // IDictionary
 
-        public ICollection<object> Keys
+        public ICollection Keys
         {
             get
             {
@@ -95,7 +91,7 @@ namespace Godot.Collections
             }
         }
 
-        public ICollection<object> Values
+        public ICollection Values
         {
             get
             {
@@ -104,97 +100,102 @@ namespace Godot.Collections
             }
         }
 
-        public int Count
-        {
-            get
-            {
-                return godot_icall_Dictionary_Count(GetPtr());
-            }
-        }
+        public bool IsFixedSize => false;
 
-        public bool IsReadOnly
-        {
-            get
-            {
-                return false;
-            }
-        }
+        public bool IsReadOnly => false;
 
-        public void Add(object key, object value)
+        public object this[object key]
         {
-            godot_icall_Dictionary_Add(GetPtr(), key, value);
+            get => godot_icall_Dictionary_GetValue(GetPtr(), key);
+            set => godot_icall_Dictionary_SetValue(GetPtr(), key, value);
         }
 
-        public void Add(KeyValuePair<object, object> item)
-        {
-            Add(item.Key, item.Value);
-        }
+        public void Add(object key, object value) => godot_icall_Dictionary_Add(GetPtr(), key, value);
 
-        public void Clear()
-        {
-            godot_icall_Dictionary_Clear(GetPtr());
-        }
+        public void Clear() => godot_icall_Dictionary_Clear(GetPtr());
 
-        public bool Contains(KeyValuePair<object, object> item)
-        {
-            return godot_icall_Dictionary_Contains(GetPtr(), item.Key, item.Value);
-        }
+        public bool Contains(object key) => godot_icall_Dictionary_ContainsKey(GetPtr(), key);
 
-        public bool ContainsKey(object key)
-        {
-            return godot_icall_Dictionary_ContainsKey(GetPtr(), key);
-        }
+        public IDictionaryEnumerator GetEnumerator() => new DictionaryEnumerator(this);
+
+        public void Remove(object key) => godot_icall_Dictionary_RemoveKey(GetPtr(), key);
+
+        // ICollection
+
+        public object SyncRoot => this;
 
-        public void CopyTo(KeyValuePair<object, object>[] array, int arrayIndex)
+        public bool IsSynchronized => false;
+
+        public int Count => godot_icall_Dictionary_Count(GetPtr());
+
+        public void CopyTo(System.Array array, int index)
         {
-            // TODO 3 internal calls, can reduce to 1
+            // TODO Can be done with single internal call
+
+            if (array == null)
+                throw new ArgumentNullException(nameof(array), "Value cannot be null.");
+
+            if (index < 0)
+                throw new ArgumentOutOfRangeException(nameof(index), "Number was less than the array's lower bound in the first dimension.");
+
             Array keys = (Array)Keys;
             Array values = (Array)Values;
             int count = Count;
 
+            if (array.Length < (index + count))
+                throw new ArgumentException("Destination array was not long enough. Check destIndex and length, and the array's lower bounds.");
+
             for (int i = 0; i < count; i++)
             {
-                // TODO 2 internal calls, can reduce to 1
-                array[arrayIndex] = new KeyValuePair<object, object>(keys[i], values[i]);
-                arrayIndex++;
+                array.SetValue(new DictionaryEntry(keys[i], values[i]), index);
+                index++;
             }
         }
 
-        public IEnumerator<KeyValuePair<object, object>> GetEnumerator()
+        // IEnumerable
+
+        IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
+
+        private class DictionaryEnumerator : IDictionaryEnumerator
         {
-            // TODO 3 internal calls, can reduce to 1
-            Array keys = (Array)Keys;
-            Array values = (Array)Values;
-            int count = Count;
+            Array keys;
+            Array values;
+            int count;
+            int index = -1;
 
-            for (int i = 0; i < count; i++)
+            public DictionaryEnumerator(Dictionary dictionary)
             {
-                // TODO 2 internal calls, can reduce to 1
-                yield return new KeyValuePair<object, object>(keys[i], values[i]);
+                // TODO 3 internal calls, can reduce to 1
+                keys = (Array)dictionary.Keys;
+                values = (Array)dictionary.Values;
+                count = dictionary.Count;
             }
-        }
 
-        public bool Remove(object key)
-        {
-            return godot_icall_Dictionary_RemoveKey(GetPtr(), key);
-        }
+            public object Current => Entry;
 
-        public bool Remove(KeyValuePair<object, object> item)
-        {
-            return godot_icall_Dictionary_Remove(GetPtr(), item.Key, item.Value);
-        }
+            public DictionaryEntry Entry =>
+                // TODO 2 internal calls, can reduce to 1
+                new DictionaryEntry(keys[index], values[index]);
 
-        public bool TryGetValue(object key, out object value)
-        {
-            object retValue;
-            bool found = godot_icall_Dictionary_TryGetValue(GetPtr(), key, out retValue);
-            value = found ? retValue : default(object);
-            return found;
+            public object Key => Entry.Key;
+
+            public object Value => Entry.Value;
+
+            public bool MoveNext()
+            {
+                index++;
+                return index < count;
+            }
+
+            public void Reset()
+            {
+                index = -1;
+            }
         }
 
-        IEnumerator IEnumerable.GetEnumerator()
+        public override string ToString()
         {
-            return GetEnumerator();
+            return godot_icall_Dictionary_ToString(GetPtr());
         }
 
         [MethodImpl(MethodImplOptions.InternalCall)]
@@ -247,12 +248,13 @@ namespace Godot.Collections
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static void godot_icall_Dictionary_Generic_GetValueTypeInfo(Type valueType, out int valTypeEncoding, out IntPtr valTypeClass);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        internal extern static string godot_icall_Dictionary_ToString(IntPtr ptr);
     }
 
     public class Dictionary<TKey, TValue> :
-        IDictionary<TKey, TValue>,
-        ICollection<KeyValuePair<TKey, TValue>>,
-        IEnumerable<KeyValuePair<TKey, TValue>>
+        IDictionary<TKey, TValue>
     {
         Dictionary objectDict;
 
@@ -269,6 +271,23 @@ namespace Godot.Collections
             objectDict = new Dictionary();
         }
 
+        public Dictionary(IDictionary<TKey, TValue> dictionary)
+        {
+            objectDict = new Dictionary();
+
+            if (dictionary == null)
+                throw new NullReferenceException($"Parameter '{nameof(dictionary)} cannot be null.'");
+
+            // TODO: Can be optimized
+
+            IntPtr godotDictionaryPtr = GetPtr();
+
+            foreach (KeyValuePair<TKey, TValue> entry in dictionary)
+            {
+                Dictionary.godot_icall_Dictionary_Add(godotDictionaryPtr, entry.Key, entry.Value);
+            }
+        }
+
         public Dictionary(Dictionary dictionary)
         {
             objectDict = dictionary;
@@ -289,6 +308,13 @@ namespace Godot.Collections
             return from.objectDict;
         }
 
+        internal IntPtr GetPtr()
+        {
+            return objectDict.GetPtr();
+        }
+
+        // IDictionary<TKey, TValue>
+
         public TValue this[TKey key]
         {
             get
@@ -319,6 +345,31 @@ namespace Godot.Collections
             }
         }
 
+        public void Add(TKey key, TValue value)
+        {
+            objectDict.Add(key, value);
+        }
+
+        public bool ContainsKey(TKey key)
+        {
+            return objectDict.Contains(key);
+        }
+
+        public bool Remove(TKey key)
+        {
+            return Dictionary.godot_icall_Dictionary_RemoveKey(GetPtr(), key);
+        }
+
+        public bool TryGetValue(TKey key, out TValue value)
+        {
+            object retValue;
+            bool found = Dictionary.godot_icall_Dictionary_TryGetValue_Generic(GetPtr(), key, out retValue, valTypeEncoding, valTypeClass);
+            value = found ? (TValue)retValue : default(TValue);
+            return found;
+        }
+
+        // ICollection<KeyValuePair<TKey, TValue>>
+
         public int Count
         {
             get
@@ -335,11 +386,6 @@ namespace Godot.Collections
             }
         }
 
-        public void Add(TKey key, TValue value)
-        {
-            objectDict.Add(key, value);
-        }
-
         public void Add(KeyValuePair<TKey, TValue> item)
         {
             objectDict.Add(item.Key, item.Value);
@@ -355,18 +401,22 @@ namespace Godot.Collections
             return objectDict.Contains(new KeyValuePair<object, object>(item.Key, item.Value));
         }
 
-        public bool ContainsKey(TKey key)
-        {
-            return objectDict.ContainsKey(key);
-        }
-
         public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex)
         {
+            if (array == null)
+                throw new ArgumentNullException(nameof(array), "Value cannot be null.");
+
+            if (arrayIndex < 0)
+                throw new ArgumentOutOfRangeException(nameof(arrayIndex), "Number was less than the array's lower bound in the first dimension.");
+
             // TODO 3 internal calls, can reduce to 1
             Array<TKey> keys = (Array<TKey>)Keys;
             Array<TValue> values = (Array<TValue>)Values;
             int count = Count;
 
+            if (array.Length < (arrayIndex + count))
+                throw new ArgumentException("Destination array was not long enough. Check destIndex and length, and the array's lower bounds.");
+
             for (int i = 0; i < count; i++)
             {
                 // TODO 2 internal calls, can reduce to 1
@@ -375,6 +425,13 @@ namespace Godot.Collections
             }
         }
 
+        public bool Remove(KeyValuePair<TKey, TValue> item)
+        {
+            return Dictionary.godot_icall_Dictionary_Remove(GetPtr(), item.Key, item.Value); ;
+        }
+
+        // IEnumerable<KeyValuePair<TKey, TValue>>
+
         public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator()
         {
             // TODO 3 internal calls, can reduce to 1
@@ -389,32 +446,11 @@ namespace Godot.Collections
             }
         }
 
-        public bool Remove(TKey key)
-        {
-            return objectDict.Remove(key);
-        }
-
-        public bool Remove(KeyValuePair<TKey, TValue> item)
-        {
-            return objectDict.Remove(new KeyValuePair<object, object>(item.Key, item.Value));
-        }
-
-        public bool TryGetValue(TKey key, out TValue value)
-        {
-            object retValue;
-            bool found = Dictionary.godot_icall_Dictionary_TryGetValue_Generic(GetPtr(), key, out retValue, valTypeEncoding, valTypeClass);
-            value = found ? (TValue)retValue : default(TValue);
-            return found;
-        }
-
         IEnumerator IEnumerable.GetEnumerator()
         {
             return GetEnumerator();
         }
 
-        internal IntPtr GetPtr()
-        {
-            return objectDict.GetPtr();
-        }
+        public override string ToString() => objectDict.ToString();
     }
 }
diff --git a/modules/mono/glue/Managed/Files/DynamicObject.cs b/modules/mono/glue/Managed/Files/DynamicObject.cs
index 9504415664..9860feafdd 100644
--- a/modules/mono/glue/Managed/Files/DynamicObject.cs
+++ b/modules/mono/glue/Managed/Files/DynamicObject.cs
@@ -26,7 +26,7 @@ namespace Godot
     /// dynamic sprite = GetNode("Sprite").DynamicGodotObject;
     /// sprite.add_child(this);
     ///
-    /// if ((sprite.hframes * sprite.vframes) > 0)
+    /// if ((sprite.hframes * sprite.vframes) &gt; 0)
     ///     sprite.frame = 0;
     /// </code>
     /// </example>
diff --git a/modules/mono/glue/Managed/Files/GD.cs b/modules/mono/glue/Managed/Files/GD.cs
index 3afaf5d08b..2068099ac6 100644
--- a/modules/mono/glue/Managed/Files/GD.cs
+++ b/modules/mono/glue/Managed/Files/GD.cs
@@ -13,12 +13,12 @@ namespace Godot
 {
     public static partial class GD
     {
-        public static object Bytes2Var(byte[] bytes)
+        public static object Bytes2Var(byte[] bytes, bool allow_objects = false)
         {
-            return godot_icall_GD_bytes2var(bytes);
+            return godot_icall_GD_bytes2var(bytes, allow_objects);
         }
 
-        public static object Convert(object what, int type)
+        public static object Convert(object what, Variant.Type type)
         {
             return godot_icall_GD_convert(what, type);
         }
@@ -83,7 +83,7 @@ namespace Godot
 
         public static void Print(params object[] what)
         {
-            godot_icall_GD_print(what);
+            godot_icall_GD_print(Array.ConvertAll(what, x => x.ToString()));
         }
 
         public static void PrintStack()
@@ -93,25 +93,25 @@ namespace Godot
 
         public static void PrintErr(params object[] what)
         {
-            godot_icall_GD_printerr(what);
+            godot_icall_GD_printerr(Array.ConvertAll(what, x => x.ToString()));
         }
 
         public static void PrintRaw(params object[] what)
         {
-            godot_icall_GD_printraw(what);
+            godot_icall_GD_printraw(Array.ConvertAll(what, x => x.ToString()));
         }
 
         public static void PrintS(params object[] what)
         {
-            godot_icall_GD_prints(what);
+            godot_icall_GD_prints(Array.ConvertAll(what, x => x.ToString()));
         }
 
         public static void PrintT(params object[] what)
         {
-            godot_icall_GD_printt(what);
+            godot_icall_GD_printt(Array.ConvertAll(what, x => x.ToString()));
         }
 
-        public static double Randf()
+        public static float Randf()
         {
             return godot_icall_GD_randf();
         }
@@ -186,9 +186,9 @@ namespace Godot
             return godot_icall_GD_type_exists(type);
         }
 
-        public static byte[] Var2Bytes(object var)
+        public static byte[] Var2Bytes(object var, bool full_objects = false)
         {
-            return godot_icall_GD_var2bytes(var);
+            return godot_icall_GD_var2bytes(var, full_objects);
         }
 
         public static string Var2Str(object var)
@@ -197,10 +197,10 @@ namespace Godot
         }
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static object godot_icall_GD_bytes2var(byte[] bytes);
+        internal extern static object godot_icall_GD_bytes2var(byte[] bytes, bool allow_objects);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static object godot_icall_GD_convert(object what, int type);
+        internal extern static object godot_icall_GD_convert(object what, Variant.Type type);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static int godot_icall_GD_hash(object var);
@@ -224,7 +224,7 @@ namespace Godot
         internal extern static void godot_icall_GD_printt(object[] what);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static double godot_icall_GD_randf();
+        internal extern static float godot_icall_GD_randf();
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static uint godot_icall_GD_randi();
@@ -232,6 +232,7 @@ namespace Godot
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static void godot_icall_GD_randomize();
 
+
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static double godot_icall_GD_rand_range(double from, double to);
 
@@ -251,7 +252,7 @@ namespace Godot
         internal extern static bool godot_icall_GD_type_exists(string type);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
-        internal extern static byte[] godot_icall_GD_var2bytes(object what);
+        internal extern static byte[] godot_icall_GD_var2bytes(object what, bool full_objects);
 
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static string godot_icall_GD_var2str(object var);
diff --git a/modules/mono/glue/Managed/Files/MarshalUtils.cs b/modules/mono/glue/Managed/Files/MarshalUtils.cs
index f7699a15bf..7e72b0edb5 100644
--- a/modules/mono/glue/Managed/Files/MarshalUtils.cs
+++ b/modules/mono/glue/Managed/Files/MarshalUtils.cs
@@ -1,18 +1,68 @@
 using System;
-using Godot.Collections;
+using System.Collections;
 
 namespace Godot
 {
+    using Array = Godot.Collections.Array;
+    using Dictionary = Godot.Collections.Dictionary;
+
     static class MarshalUtils
     {
-        static bool IsArrayGenericType(Type type)
+        static bool TypeIsGenericArray(Type type)
         {
-            return type.GetGenericTypeDefinition() == typeof(Array<>);
+            return type.GetGenericTypeDefinition() == typeof(Godot.Collections.Array<>);
+        }
+
+        static bool TypeIsGenericDictionary(Type type)
+        {
+            return type.GetGenericTypeDefinition() == typeof(Godot.Collections.Dictionary<,>);
+        }
+
+        static void ArrayGetElementType(Type type, out Type elementType)
+        {
+            elementType = type.GetGenericArguments()[0];
+        }
+
+        static void DictionaryGetKeyValueTypes(Type type, out Type keyType, out Type valueType)
+        {
+            var genericArgs = type.GetGenericArguments();
+
+            keyType = genericArgs[0];
+            valueType = genericArgs[1];
+        }
+
+        // TODO Add support for IEnumerable<T> and IDictionary<TKey, TValue>
+        // TODO: EnumerableToArray and IDictionaryToDictionary can be optimized
+
+        internal static void EnumerableToArray(IEnumerable enumerable, IntPtr godotArrayPtr)
+        {
+            if (enumerable is ICollection collection)
+            {
+                int count = collection.Count;
+
+                object[] tempArray = new object[count];
+                collection.CopyTo(tempArray, 0);
+
+                for (int i = 0; i < count; i++)
+                {
+                    Array.godot_icall_Array_Add(godotArrayPtr, tempArray[i]);
+                }
+            }
+            else
+            {
+                foreach (object element in enumerable)
+                {
+                    Array.godot_icall_Array_Add(godotArrayPtr, element);
+                }
+            }
         }
 
-        static bool IsDictionaryGenericType(Type type)
+        internal static void IDictionaryToDictionary(IDictionary dictionary, IntPtr godotDictionaryPtr)
         {
-            return type.GetGenericTypeDefinition() == typeof(Dictionary<, >);
+            foreach (DictionaryEntry entry in dictionary)
+            {
+                Dictionary.godot_icall_Dictionary_Add(godotDictionaryPtr, entry.Key, entry.Value);
+            }
         }
     }
 }
diff --git a/modules/mono/glue/Managed/Files/Mathf.cs b/modules/mono/glue/Managed/Files/Mathf.cs
index 5f5de12959..ff26c7fddf 100644
--- a/modules/mono/glue/Managed/Files/Mathf.cs
+++ b/modules/mono/glue/Managed/Files/Mathf.cs
@@ -79,14 +79,27 @@ namespace Godot
             return (real_t)Math.Cosh(s);
         }
 
-        public static int Decimals(real_t step)
-        {
-            return Decimals((decimal)step);
-        }
-
-        public static int Decimals(decimal step)
-        {
-            return BitConverter.GetBytes(decimal.GetBits(step)[3])[2];
+        public static int StepDecimals(real_t step)
+        {
+            double[] sd = new double[] {
+                0.9999,
+                0.09999,
+                0.009999,
+                0.0009999,
+                0.00009999,
+                0.000009999,
+                0.0000009999,
+                0.00000009999,
+                0.000000009999,
+            };
+            double abs = Mathf.Abs(step);
+            double decs = abs - (int)abs; // Strip away integer part
+            for (int i = 0; i < sd.Length; i++) {
+                if (decs >= sd[i]) {
+                    return i;
+                }
+            }
+            return 0;
         }
 
         public static real_t Deg2Rad(real_t deg)
@@ -143,6 +156,15 @@ namespace Godot
            return (weight - from) / (to - from);
         }
 
+        public static bool IsEqualApprox(real_t a, real_t b)
+        {
+            real_t tolerance = Epsilon * Abs(a);
+            if (tolerance < Epsilon) {
+                tolerance = Epsilon;
+            }
+            return Abs(a - b) < tolerance;
+        }
+
         public static bool IsInf(real_t s)
         {
            return real_t.IsInfinity(s);
@@ -153,6 +175,11 @@ namespace Godot
            return real_t.IsNaN(s);
         }
 
+        public static bool IsZeroApprox(real_t s)
+        {
+            return Abs(s) < Epsilon;
+        }
+
         public static real_t Lerp(real_t from, real_t to, real_t weight)
         {
             return from + (to - from) * weight;
@@ -261,6 +288,16 @@ namespace Godot
             return (real_t)Math.Sinh(s);
         }
 
+        public static real_t SmoothStep(real_t from, real_t to, real_t weight)
+        {
+            if (IsEqualApprox(from, to))
+            {
+                return from;
+            }
+            real_t x = Clamp((weight - from) / (to - from), (real_t)0.0, (real_t)1.0);
+            return x * x * (3 - 2 * x);
+        }
+
         public static real_t Sqrt(real_t s)
         {
             return (real_t)Math.Sqrt(s);
diff --git a/modules/mono/glue/Managed/Files/MathfEx.cs b/modules/mono/glue/Managed/Files/MathfEx.cs
index 414762f7b1..b96f01bc2e 100644
--- a/modules/mono/glue/Managed/Files/MathfEx.cs
+++ b/modules/mono/glue/Managed/Files/MathfEx.cs
@@ -21,6 +21,16 @@ namespace Godot
         public const real_t Epsilon = 1e-06f;
 #endif
 
+        public static int DecimalCount(real_t s)
+        {
+            return DecimalCount((decimal)s);
+        }
+
+        public static int DecimalCount(decimal s)
+        {
+            return BitConverter.GetBytes(decimal.GetBits(s)[3])[2];
+        }
+
         public static int CeilToInt(real_t s)
         {
             return (int)Math.Ceiling(s);
@@ -36,9 +46,9 @@ namespace Godot
             return (int)Math.Round(s);
         }
 
-        public static bool IsEqualApprox(real_t a, real_t b, real_t ratio = Mathf.Epsilon)
+        public static bool IsEqualApprox(real_t a, real_t b, real_t tolerance)
         {
-            return Abs(a - b) < ratio;
+            return Abs(a - b) < tolerance;
         }
     }
 }
\ No newline at end of file
diff --git a/modules/mono/glue/Managed/Files/Object.base.cs b/modules/mono/glue/Managed/Files/Object.base.cs
index e152d56871..de80f7fddc 100644
--- a/modules/mono/glue/Managed/Files/Object.base.cs
+++ b/modules/mono/glue/Managed/Files/Object.base.cs
@@ -73,6 +73,11 @@ namespace Godot
             disposed = true;
         }
 
+        public override string ToString()
+        {
+            return godot_icall_Object_ToString(GetPtr(this));
+        }
+
         /// <summary>
         /// Returns a new <see cref="Godot.SignalAwaiter"/> awaiter configured to complete when the instance
         /// <paramref name="source"/> emits the signal specified by the <paramref name="signal"/> parameter.
@@ -88,7 +93,7 @@ namespace Godot
         /// <code>
         /// public override void _Ready()
         /// {
-        ///     for (int i = 0; i < 100; i++)
+        ///     for (int i = 0; i &lt; 100; i++)
         ///     {
         ///         await ToSignal(GetTree(), "idle_frame");
         ///         GD.Print($"Frame {i}");
@@ -115,6 +120,9 @@ namespace Godot
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static void godot_icall_Reference_Disposed(Object obj, IntPtr ptr, bool isFinalizer);
 
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        internal extern static string godot_icall_Object_ToString(IntPtr ptr);
+
         // Used by the generated API
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static IntPtr godot_icall_Object_ClassDB_get_method(string type, string method);
diff --git a/modules/mono/glue/Managed/Files/Plane.cs b/modules/mono/glue/Managed/Files/Plane.cs
index f11cd490a9..e16d4315be 100644
--- a/modules/mono/glue/Managed/Files/Plane.cs
+++ b/modules/mono/glue/Managed/Files/Plane.cs
@@ -200,7 +200,7 @@ namespace Godot
 
         public bool Equals(Plane other)
         {
-            return _normal == other._normal && D == other.D;
+            return _normal == other._normal && Mathf.IsEqualApprox(D, other.D);
         }
 
         public override int GetHashCode()
diff --git a/modules/mono/glue/Managed/Files/Quat.cs b/modules/mono/glue/Managed/Files/Quat.cs
index d0c15146a5..0d4349084a 100644
--- a/modules/mono/glue/Managed/Files/Quat.cs
+++ b/modules/mono/glue/Managed/Files/Quat.cs
@@ -358,7 +358,7 @@ namespace Godot
 
         public bool Equals(Quat other)
         {
-            return x == other.x && y == other.y && z == other.z && w == other.w;
+            return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y) && Mathf.IsEqualApprox(z, other.z) && Mathf.IsEqualApprox(w, other.w);
         }
 
         public override int GetHashCode()
diff --git a/modules/mono/glue/Managed/Files/RID.cs b/modules/mono/glue/Managed/Files/RID.cs
index f1268c8518..12064beca2 100644
--- a/modules/mono/glue/Managed/Files/RID.cs
+++ b/modules/mono/glue/Managed/Files/RID.cs
@@ -70,6 +70,8 @@ namespace Godot
             return godot_icall_RID_get_id(RID.GetPtr(this));
         }
 
+        public override string ToString() => "[RID]";
+
         [MethodImpl(MethodImplOptions.InternalCall)]
         internal extern static IntPtr godot_icall_RID_Ctor(IntPtr from);
 
diff --git a/modules/mono/glue/Managed/Files/Vector2.cs b/modules/mono/glue/Managed/Files/Vector2.cs
index 73a3252fdb..bb1950e1a8 100644
--- a/modules/mono/glue/Managed/Files/Vector2.cs
+++ b/modules/mono/glue/Managed/Files/Vector2.cs
@@ -52,11 +52,15 @@ namespace Godot
 
         internal void Normalize()
         {
-            real_t length = x * x + y * y;
+            real_t lengthsq = LengthSquared();
 
-            if (length != 0f)
+            if (lengthsq == 0)
             {
-                length = Mathf.Sqrt(length);
+                x = y = 0f;
+            }
+            else
+            {
+                real_t length = Mathf.Sqrt(lengthsq);
                 x /= length;
                 y /= length;
             }
@@ -132,6 +136,11 @@ namespace Godot
                                 (-p0 + 3.0f * p1 - 3.0f * p2 + p3) * t3);
         }
 
+        public Vector2 DirectionTo(Vector2 b)
+        {
+            return new Vector2(b.x - x, b.y - y).Normalized();
+        }
+
         public real_t DistanceSquaredTo(Vector2 to)
         {
             return (x - to.x) * (x - to.x) + (y - to.y) * (y - to.y);
@@ -179,9 +188,9 @@ namespace Godot
 
         public Vector2 Normalized()
         {
-            var result = this;
-            result.Normalize();
-            return result;
+            var v = this;
+            v.Normalize();
+            return v;
         }
 
         public Vector2 Project(Vector2 onNormal)
@@ -338,7 +347,7 @@ namespace Godot
 
         public static bool operator <(Vector2 left, Vector2 right)
         {
-            if (left.x.Equals(right.x))
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
                 return left.y < right.y;
             }
@@ -348,7 +357,7 @@ namespace Godot
 
         public static bool operator >(Vector2 left, Vector2 right)
         {
-            if (left.x.Equals(right.x))
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
                 return left.y > right.y;
             }
@@ -358,7 +367,7 @@ namespace Godot
 
         public static bool operator <=(Vector2 left, Vector2 right)
         {
-            if (left.x.Equals(right.x))
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
                 return left.y <= right.y;
             }
@@ -368,7 +377,7 @@ namespace Godot
 
         public static bool operator >=(Vector2 left, Vector2 right)
         {
-            if (left.x.Equals(right.x))
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
                 return left.y >= right.y;
             }
@@ -388,7 +397,7 @@ namespace Godot
 
         public bool Equals(Vector2 other)
         {
-            return x == other.x && y == other.y;
+            return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y);
         }
 
         public override int GetHashCode()
diff --git a/modules/mono/glue/Managed/Files/Vector3.cs b/modules/mono/glue/Managed/Files/Vector3.cs
index f6ff27989d..283cb6341a 100644
--- a/modules/mono/glue/Managed/Files/Vector3.cs
+++ b/modules/mono/glue/Managed/Files/Vector3.cs
@@ -65,14 +65,15 @@ namespace Godot
 
         internal void Normalize()
         {
-            real_t length = Length();
+            real_t lengthsq = LengthSquared();
 
-            if (length == 0f)
+            if (lengthsq == 0)
             {
                 x = y = z = 0f;
             }
             else
             {
+                real_t length = Mathf.Sqrt(lengthsq);
                 x /= length;
                 y /= length;
                 z /= length;
@@ -126,6 +127,11 @@ namespace Godot
                     );
         }
 
+        public Vector3 DirectionTo(Vector3 b)
+        {
+            return new Vector3(b.x - x, b.y - y, b.z - z).Normalized();
+        }
+
         public real_t DistanceSquaredTo(Vector3 b)
         {
             return (b - this).LengthSquared();
@@ -392,9 +398,9 @@ namespace Godot
 
         public static bool operator <(Vector3 left, Vector3 right)
         {
-            if (left.x == right.x)
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
-                if (left.y == right.y)
+                if (Mathf.IsEqualApprox(left.y, right.y))
                     return left.z < right.z;
                 return left.y < right.y;
             }
@@ -404,9 +410,9 @@ namespace Godot
 
         public static bool operator >(Vector3 left, Vector3 right)
         {
-            if (left.x == right.x)
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
-                if (left.y == right.y)
+                if (Mathf.IsEqualApprox(left.y, right.y))
                     return left.z > right.z;
                 return left.y > right.y;
             }
@@ -416,9 +422,9 @@ namespace Godot
 
         public static bool operator <=(Vector3 left, Vector3 right)
         {
-            if (left.x == right.x)
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
-                if (left.y == right.y)
+                if (Mathf.IsEqualApprox(left.y, right.y))
                     return left.z <= right.z;
                 return left.y < right.y;
             }
@@ -428,9 +434,9 @@ namespace Godot
 
         public static bool operator >=(Vector3 left, Vector3 right)
         {
-            if (left.x == right.x)
+            if (Mathf.IsEqualApprox(left.x, right.x))
             {
-                if (left.y == right.y)
+                if (Mathf.IsEqualApprox(left.y, right.y))
                     return left.z >= right.z;
                 return left.y > right.y;
             }
@@ -450,7 +456,7 @@ namespace Godot
 
         public bool Equals(Vector3 other)
         {
-            return x == other.x && y == other.y && z == other.z;
+            return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y) && Mathf.IsEqualApprox(z, other.z);
         }
 
         public override int GetHashCode()
diff --git a/modules/mono/glue/Managed/IgnoredFiles/Variant.cs b/modules/mono/glue/Managed/IgnoredFiles/Variant.cs
new file mode 100644
index 0000000000..802140b062
--- /dev/null
+++ b/modules/mono/glue/Managed/IgnoredFiles/Variant.cs
@@ -0,0 +1,11 @@
+
+namespace Godot
+{
+    public static class Variant
+    {
+        public enum Type
+        {
+
+        }
+    }
+}
diff --git a/modules/mono/glue/arguments_vector.h b/modules/mono/glue/arguments_vector.h
index cb558235d8..8c0f308c15 100644
--- a/modules/mono/glue/arguments_vector.h
+++ b/modules/mono/glue/arguments_vector.h
@@ -39,6 +39,7 @@ struct ArgumentsVector {
 private:
 	T pool[POOL_SIZE];
 	T *_ptr;
+	int size;
 
 	ArgumentsVector();
 	ArgumentsVector(const ArgumentsVector &);
@@ -48,11 +49,18 @@ public:
 	T &get(int p_idx) { return _ptr[p_idx]; }
 	void set(int p_idx, const T &p_value) { _ptr[p_idx] = p_value; }
 
-	explicit ArgumentsVector(int size) {
-		if (size <= POOL_SIZE) {
+	explicit ArgumentsVector(int p_size) :
+			size(p_size) {
+		if (p_size <= POOL_SIZE) {
 			_ptr = pool;
 		} else {
-			_ptr = memnew_arr(T, size);
+			_ptr = memnew_arr(T, p_size);
+		}
+	}
+
+	~ArgumentsVector() {
+		if (size > POOL_SIZE) {
+			memdelete_arr(_ptr);
 		}
 	}
 };
diff --git a/modules/mono/glue/base_object_glue.cpp b/modules/mono/glue/base_object_glue.cpp
index b690de0d20..7385014a53 100644
--- a/modules/mono/glue/base_object_glue.cpp
+++ b/modules/mono/glue/base_object_glue.cpp
@@ -192,7 +192,7 @@ MonoBoolean godot_icall_DynamicGodotObject_InvokeMember(Object *p_ptr, MonoStrin
 
 	*r_result = GDMonoMarshal::variant_to_mono_object(result);
 
-	return error.error == OK;
+	return error.error == Variant::CallError::CALL_OK;
 }
 
 MonoBoolean godot_icall_DynamicGodotObject_GetMember(Object *p_ptr, MonoString *p_name, MonoObject **r_result) {
@@ -218,11 +218,16 @@ MonoBoolean godot_icall_DynamicGodotObject_SetMember(Object *p_ptr, MonoString *
 	return valid;
 }
 
+MonoString *godot_icall_Object_ToString(Object *p_ptr) {
+	return GDMonoMarshal::mono_string_from_godot(Variant(p_ptr).operator String());
+}
+
 void godot_register_object_icalls() {
 	mono_add_internal_call("Godot.Object::godot_icall_Object_Ctor", (void *)godot_icall_Object_Ctor);
 	mono_add_internal_call("Godot.Object::godot_icall_Object_Disposed", (void *)godot_icall_Object_Disposed);
 	mono_add_internal_call("Godot.Object::godot_icall_Reference_Disposed", (void *)godot_icall_Reference_Disposed);
 	mono_add_internal_call("Godot.Object::godot_icall_Object_ClassDB_get_method", (void *)godot_icall_Object_ClassDB_get_method);
+	mono_add_internal_call("Godot.Object::godot_icall_Object_ToString", (void *)godot_icall_Object_ToString);
 	mono_add_internal_call("Godot.Object::godot_icall_Object_weakref", (void *)godot_icall_Object_weakref);
 	mono_add_internal_call("Godot.SignalAwaiter::godot_icall_SignalAwaiter_connect", (void *)godot_icall_SignalAwaiter_connect);
 	mono_add_internal_call("Godot.DynamicGodotObject::godot_icall_DynamicGodotObject_SetMemberList", (void *)godot_icall_DynamicGodotObject_SetMemberList);
diff --git a/modules/mono/glue/base_object_glue.h b/modules/mono/glue/base_object_glue.h
index 9b5224a347..e4ac9fb99d 100644
--- a/modules/mono/glue/base_object_glue.h
+++ b/modules/mono/glue/base_object_glue.h
@@ -60,6 +60,8 @@ MonoBoolean godot_icall_DynamicGodotObject_GetMember(Object *p_ptr, MonoString *
 
 MonoBoolean godot_icall_DynamicGodotObject_SetMember(Object *p_ptr, MonoString *p_name, MonoObject *p_value);
 
+MonoString *godot_icall_Object_ToString(Object *p_ptr);
+
 // Register internal calls
 
 void godot_register_object_icalls();
diff --git a/modules/mono/glue/collections_glue.cpp b/modules/mono/glue/collections_glue.cpp
index 1aad1c53bc..4aef5684fd 100644
--- a/modules/mono/glue/collections_glue.cpp
+++ b/modules/mono/glue/collections_glue.cpp
@@ -73,8 +73,9 @@ int godot_icall_Array_Count(Array *ptr) {
 	return ptr->size();
 }
 
-void godot_icall_Array_Add(Array *ptr, MonoObject *item) {
+int godot_icall_Array_Add(Array *ptr, MonoObject *item) {
 	ptr->append(GDMonoMarshal::mono_object_to_variant(item));
+	return ptr->size();
 }
 
 void godot_icall_Array_Clear(Array *ptr) {
@@ -142,6 +143,10 @@ void godot_icall_Array_Generic_GetElementTypeInfo(MonoReflectionType *refltype,
 	*type_class = GDMono::get_singleton()->get_class(type_class_raw);
 }
 
+MonoString *godot_icall_Array_ToString(Array *ptr) {
+	return GDMonoMarshal::mono_string_from_godot(Variant(*ptr).operator String());
+}
+
 Dictionary *godot_icall_Dictionary_Ctor() {
 	return memnew(Dictionary);
 }
@@ -263,6 +268,10 @@ void godot_icall_Dictionary_Generic_GetValueTypeInfo(MonoReflectionType *refltyp
 	*type_class = GDMono::get_singleton()->get_class(type_class_raw);
 }
 
+MonoString *godot_icall_Dictionary_ToString(Dictionary *ptr) {
+	return GDMonoMarshal::mono_string_from_godot(Variant(*ptr).operator String());
+}
+
 void godot_register_collections_icalls() {
 	mono_add_internal_call("Godot.Collections.Array::godot_icall_Array_Ctor", (void *)godot_icall_Array_Ctor);
 	mono_add_internal_call("Godot.Collections.Array::godot_icall_Array_Dtor", (void *)godot_icall_Array_Dtor);
@@ -280,6 +289,7 @@ void godot_register_collections_icalls() {
 	mono_add_internal_call("Godot.Collections.Array::godot_icall_Array_RemoveAt", (void *)godot_icall_Array_RemoveAt);
 	mono_add_internal_call("Godot.Collections.Array::godot_icall_Array_Resize", (void *)godot_icall_Array_Resize);
 	mono_add_internal_call("Godot.Collections.Array::godot_icall_Array_Generic_GetElementTypeInfo", (void *)godot_icall_Array_Generic_GetElementTypeInfo);
+	mono_add_internal_call("Godot.Collections.Array::godot_icall_Array_ToString", (void *)godot_icall_Array_ToString);
 
 	mono_add_internal_call("Godot.Collections.Dictionary::godot_icall_Dictionary_Ctor", (void *)godot_icall_Dictionary_Ctor);
 	mono_add_internal_call("Godot.Collections.Dictionary::godot_icall_Dictionary_Dtor", (void *)godot_icall_Dictionary_Dtor);
@@ -298,6 +308,7 @@ void godot_register_collections_icalls() {
 	mono_add_internal_call("Godot.Collections.Dictionary::godot_icall_Dictionary_TryGetValue", (void *)godot_icall_Dictionary_TryGetValue);
 	mono_add_internal_call("Godot.Collections.Dictionary::godot_icall_Dictionary_TryGetValue_Generic", (void *)godot_icall_Dictionary_TryGetValue_Generic);
 	mono_add_internal_call("Godot.Collections.Dictionary::godot_icall_Dictionary_Generic_GetValueTypeInfo", (void *)godot_icall_Dictionary_Generic_GetValueTypeInfo);
+	mono_add_internal_call("Godot.Collections.Dictionary::godot_icall_Dictionary_ToString", (void *)godot_icall_Dictionary_ToString);
 }
 
 #endif // MONO_GLUE_ENABLED
diff --git a/modules/mono/glue/collections_glue.h b/modules/mono/glue/collections_glue.h
index 85a2e243a2..54ed42c3b6 100644
--- a/modules/mono/glue/collections_glue.h
+++ b/modules/mono/glue/collections_glue.h
@@ -51,7 +51,7 @@ void godot_icall_Array_SetAt(Array *ptr, int index, MonoObject *value);
 
 int godot_icall_Array_Count(Array *ptr);
 
-void godot_icall_Array_Add(Array *ptr, MonoObject *item);
+int godot_icall_Array_Add(Array *ptr, MonoObject *item);
 
 void godot_icall_Array_Clear(Array *ptr);
 
@@ -71,6 +71,8 @@ Error godot_icall_Array_Resize(Array *ptr, int new_size);
 
 void godot_icall_Array_Generic_GetElementTypeInfo(MonoReflectionType *refltype, uint32_t *type_encoding, GDMonoClass **type_class);
 
+MonoString *godot_icall_Array_ToString(Array *ptr);
+
 // Dictionary
 
 Dictionary *godot_icall_Dictionary_Ctor();
@@ -107,6 +109,8 @@ MonoBoolean godot_icall_Dictionary_TryGetValue_Generic(Dictionary *ptr, MonoObje
 
 void godot_icall_Dictionary_Generic_GetValueTypeInfo(MonoReflectionType *refltype, uint32_t *type_encoding, GDMonoClass **type_class);
 
+MonoString *godot_icall_Dictionary_ToString(Dictionary *ptr);
+
 // Register internal calls
 
 void godot_register_collections_icalls();
diff --git a/modules/mono/glue/gd_glue.cpp b/modules/mono/glue/gd_glue.cpp
index af022dae81..7c30092855 100644
--- a/modules/mono/glue/gd_glue.cpp
+++ b/modules/mono/glue/gd_glue.cpp
@@ -41,11 +41,11 @@
 
 #include "../mono_gd/gd_mono_utils.h"
 
-MonoObject *godot_icall_GD_bytes2var(MonoArray *p_bytes) {
+MonoObject *godot_icall_GD_bytes2var(MonoArray *p_bytes, MonoBoolean p_allow_objects) {
 	Variant ret;
 	PoolByteArray varr = GDMonoMarshal::mono_array_to_PoolByteArray(p_bytes);
 	PoolByteArray::Read r = varr.read();
-	Error err = decode_variant(ret, r.ptr(), varr.size(), NULL);
+	Error err = decode_variant(ret, r.ptr(), varr.size(), NULL, p_allow_objects);
 	if (err != OK) {
 		ret = RTR("Not enough bytes for decoding bytes, or invalid format.");
 	}
@@ -115,7 +115,7 @@ void godot_icall_GD_printt(MonoArray *p_what) {
 	print_line(str);
 }
 
-double godot_icall_GD_randf() {
+float godot_icall_GD_randf() {
 	return Math::randf();
 }
 
@@ -187,19 +187,19 @@ void godot_icall_GD_pushwarning(MonoString *p_str) {
 	WARN_PRINTS(GDMonoMarshal::mono_string_to_godot(p_str));
 }
 
-MonoArray *godot_icall_GD_var2bytes(MonoObject *p_var) {
+MonoArray *godot_icall_GD_var2bytes(MonoObject *p_var, MonoBoolean p_full_objects) {
 	Variant var = GDMonoMarshal::mono_object_to_variant(p_var);
 
 	PoolByteArray barr;
 	int len;
-	Error err = encode_variant(var, NULL, len);
+	Error err = encode_variant(var, NULL, len, p_full_objects);
 	ERR_EXPLAIN("Unexpected error encoding variable to bytes, likely unserializable type found (Object or RID).");
 	ERR_FAIL_COND_V(err != OK, NULL);
 
 	barr.resize(len);
 	{
 		PoolByteArray::Write w = barr.write();
-		encode_variant(var, w.ptr(), len);
+		encode_variant(var, w.ptr(), len, p_full_objects);
 	}
 
 	return GDMonoMarshal::PoolByteArray_to_mono_array(barr);
diff --git a/modules/mono/glue/gd_glue.h b/modules/mono/glue/gd_glue.h
index 2632639169..d4e20e2887 100644
--- a/modules/mono/glue/gd_glue.h
+++ b/modules/mono/glue/gd_glue.h
@@ -35,7 +35,7 @@
 
 #include "../mono_gd/gd_mono_marshal.h"
 
-MonoObject *godot_icall_GD_bytes2var(MonoArray *p_bytes);
+MonoObject *godot_icall_GD_bytes2var(MonoArray *p_bytes, MonoBoolean p_allow_objects);
 
 MonoObject *godot_icall_GD_convert(MonoObject *p_what, int32_t p_type);
 
@@ -53,7 +53,7 @@ void godot_icall_GD_prints(MonoArray *p_what);
 
 void godot_icall_GD_printt(MonoArray *p_what);
 
-double godot_icall_GD_randf();
+float godot_icall_GD_randf();
 
 uint32_t godot_icall_GD_randi();
 
@@ -71,7 +71,7 @@ MonoObject *godot_icall_GD_str2var(MonoString *p_str);
 
 MonoBoolean godot_icall_GD_type_exists(MonoString *p_type);
 
-MonoArray *godot_icall_GD_var2bytes(MonoObject *p_var);
+MonoArray *godot_icall_GD_var2bytes(MonoObject *p_var, MonoBoolean p_full_objects);
 
 MonoString *godot_icall_GD_var2str(MonoObject *p_var);
 
diff --git a/modules/mono/mono_gd/gd_mono.cpp b/modules/mono/mono_gd/gd_mono.cpp
index bba7df2c6a..19e49d29f9 100644
--- a/modules/mono/mono_gd/gd_mono.cpp
+++ b/modules/mono/mono_gd/gd_mono.cpp
@@ -30,6 +30,7 @@
 
 #include "gd_mono.h"
 
+#include <mono/metadata/environment.h>
 #include <mono/metadata/exception.h>
 #include <mono/metadata/mono-config.h>
 #include <mono/metadata/mono-debug.h>
@@ -212,7 +213,7 @@ void GDMono::initialize() {
 	String config_dir;
 
 #ifdef TOOLS_ENABLED
-#ifdef WINDOWS_ENABLED
+#if defined(WINDOWS_ENABLED)
 	mono_reg_info = MonoRegUtils::find_mono();
 
 	if (mono_reg_info.assembly_dir.length() && DirAccess::exists(mono_reg_info.assembly_dir)) {
@@ -222,7 +223,7 @@ void GDMono::initialize() {
 	if (mono_reg_info.config_dir.length() && DirAccess::exists(mono_reg_info.config_dir)) {
 		config_dir = mono_reg_info.config_dir;
 	}
-#elif OSX_ENABLED
+#elif defined(OSX_ENABLED)
 	const char *c_assembly_rootdir = mono_assembly_getrootdir();
 	const char *c_config_dir = mono_get_config_dir();
 
@@ -657,8 +658,6 @@ bool GDMono::_load_project_assembly() {
 
 	if (success) {
 		mono_assembly_set_main(project_assembly->get_assembly());
-
-		CSharpLanguage::get_singleton()->project_assembly_loaded();
 	} else {
 		if (OS::get_singleton()->is_stdout_verbose())
 			print_error("Mono: Failed to load project assembly");
@@ -865,7 +864,7 @@ Error GDMono::reload_scripts_domain() {
 		}
 	}
 
-	CSharpLanguage::get_singleton()->_uninitialize_script_bindings();
+	CSharpLanguage::get_singleton()->_on_scripts_domain_unloaded();
 
 	Error err = _load_scripts_domain();
 	if (err != OK) {
@@ -1008,7 +1007,9 @@ void GDMono::unhandled_exception_hook(MonoObject *p_exc, void *) {
 	if (ScriptDebugger::get_singleton())
 		ScriptDebugger::get_singleton()->idle_poll();
 #endif
-	abort();
+
+	exit(mono_environment_exitcode_get());
+
 	GD_UNREACHABLE();
 }
 
diff --git a/modules/mono/mono_gd/gd_mono_class.cpp b/modules/mono/mono_gd/gd_mono_class.cpp
index 92324d73f9..4342f46109 100644
--- a/modules/mono/mono_gd/gd_mono_class.cpp
+++ b/modules/mono/mono_gd/gd_mono_class.cpp
@@ -55,7 +55,8 @@ String GDMonoClass::get_full_name() const {
 }
 
 MonoType *GDMonoClass::get_mono_type() {
-	// Care, you cannot compare MonoType pointers
+	// Careful, you cannot compare two MonoType*.
+	// There is mono_metadata_type_equal, how is this different from comparing two MonoClass*?
 	return get_mono_type(mono_class);
 }
 
@@ -260,6 +261,11 @@ bool GDMonoClass::has_fetched_method_unknown_params(const StringName &p_name) {
 	return get_fetched_method_unknown_params(p_name) != NULL;
 }
 
+bool GDMonoClass::implements_interface(GDMonoClass *p_interface) {
+
+	return mono_class_implements_interface(mono_class, p_interface->get_mono_ptr());
+}
+
 GDMonoMethod *GDMonoClass::get_method(const StringName &p_name, int p_params_count) {
 
 	MethodKey key = MethodKey(p_name, p_params_count);
diff --git a/modules/mono/mono_gd/gd_mono_class.h b/modules/mono/mono_gd/gd_mono_class.h
index 4af909450e..249422b844 100644
--- a/modules/mono/mono_gd/gd_mono_class.h
+++ b/modules/mono/mono_gd/gd_mono_class.h
@@ -135,6 +135,8 @@ public:
 	void fetch_attributes();
 	void fetch_methods_with_godot_api_checks(GDMonoClass *p_native_base);
 
+	bool implements_interface(GDMonoClass *p_interface);
+
 	GDMonoMethod *get_method(const StringName &p_name, int p_params_count = 0);
 	GDMonoMethod *get_method(MonoMethod *p_raw_method);
 	GDMonoMethod *get_method(MonoMethod *p_raw_method, const StringName &p_name);
diff --git a/modules/mono/mono_gd/gd_mono_field.cpp b/modules/mono/mono_gd/gd_mono_field.cpp
index 5e9d4db122..9779797d1a 100644
--- a/modules/mono/mono_gd/gd_mono_field.cpp
+++ b/modules/mono/mono_gd/gd_mono_field.cpp
@@ -313,6 +313,18 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 				break;
 			}
 
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				MonoObject *managed = GDMonoUtils::create_managed_from(p_value.operator Dictionary(), CACHED_CLASS(Dictionary));
+				mono_field_set_value(p_object, mono_field, managed);
+				break;
+			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+				MonoObject *managed = GDMonoUtils::create_managed_from(p_value.operator Array(), CACHED_CLASS(Array));
+				mono_field_set_value(p_object, mono_field, managed);
+				break;
+			}
+
 			ERR_EXPLAIN(String() + "Attempted to set the value of a field of unmarshallable type: " + type_class->get_name());
 			ERR_FAIL();
 		} break;
@@ -422,8 +434,8 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 
 			MonoException *exc = NULL;
 
-			GDMonoUtils::IsDictionaryGenericType type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, IsDictionaryGenericType);
-			MonoBoolean is_dict = invoke_method_thunk(type_is_dict, (MonoObject *)reftype, (MonoObject **)&exc);
+			GDMonoUtils::TypeIsGenericDictionary type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericDictionary);
+			MonoBoolean is_dict = invoke_method_thunk(type_is_dict, reftype, &exc);
 			UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 			if (is_dict) {
@@ -434,8 +446,8 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 
 			exc = NULL;
 
-			GDMonoUtils::IsArrayGenericType type_is_array = CACHED_METHOD_THUNK(MarshalUtils, IsArrayGenericType);
-			MonoBoolean is_array = invoke_method_thunk(type_is_array, (MonoObject *)reftype, (MonoObject **)&exc);
+			GDMonoUtils::TypeIsGenericArray type_is_array = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericArray);
+			MonoBoolean is_array = invoke_method_thunk(type_is_array, reftype, &exc);
 			UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 			if (is_array) {
@@ -443,6 +455,18 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 				mono_field_set_value(p_object, mono_field, managed);
 				break;
 			}
+
+			if (type.type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				MonoObject *managed = GDMonoUtils::create_managed_from(p_value.operator Dictionary(), CACHED_CLASS(Dictionary));
+				mono_field_set_value(p_object, mono_field, managed);
+				break;
+			}
+
+			if (type.type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+				MonoObject *managed = GDMonoUtils::create_managed_from(p_value.operator Array(), CACHED_CLASS(Array));
+				mono_field_set_value(p_object, mono_field, managed);
+				break;
+			}
 		} break;
 
 		default: {
diff --git a/modules/mono/mono_gd/gd_mono_header.h b/modules/mono/mono_gd/gd_mono_header.h
index dd8c047386..d7962eac8b 100644
--- a/modules/mono/mono_gd/gd_mono_header.h
+++ b/modules/mono/mono_gd/gd_mono_header.h
@@ -35,24 +35,12 @@
 
 class GDMonoAssembly;
 class GDMonoClass;
-class IMonoClassMember;
 class GDMonoField;
-class GDMonoProperty;
 class GDMonoMethod;
+class GDMonoProperty;
 
-struct ManagedType {
-	int type_encoding;
-	GDMonoClass *type_class;
-
-	ManagedType() :
-			type_encoding(0),
-			type_class(NULL) {
-	}
+class IMonoClassMember;
 
-	ManagedType(int p_type_encoding, GDMonoClass *p_type_class) :
-			type_encoding(p_type_encoding),
-			type_class(p_type_class) {
-	}
-};
+#include "managed_type.h"
 
 #endif // GD_MONO_HEADER_H
diff --git a/modules/mono/mono_gd/gd_mono_internals.cpp b/modules/mono/mono_gd/gd_mono_internals.cpp
index c8cba5cf1b..63bcfe053c 100644
--- a/modules/mono/mono_gd/gd_mono_internals.cpp
+++ b/modules/mono/mono_gd/gd_mono_internals.cpp
@@ -111,7 +111,8 @@ void tie_managed_to_unmanaged(MonoObject *managed, Object *unmanaged) {
 
 void unhandled_exception(MonoException *p_exc) {
 	mono_unhandled_exception((MonoObject *)p_exc); // prints the exception as well
-	abort();
+	// Too bad 'mono_invoke_unhandled_exception_hook' is not exposed to embedders
+	GDMono::unhandled_exception_hook((MonoObject *)p_exc, NULL);
 	GD_UNREACHABLE();
 }
 
diff --git a/modules/mono/mono_gd/gd_mono_log.cpp b/modules/mono/mono_gd/gd_mono_log.cpp
index ec89df1959..a6e04e561d 100644
--- a/modules/mono/mono_gd/gd_mono_log.cpp
+++ b/modules/mono/mono_gd/gd_mono_log.cpp
@@ -37,6 +37,7 @@
 #include "core/os/os.h"
 
 #include "../godotsharp_dirs.h"
+#include "../utils/string_utils.h"
 
 static int log_level_get_id(const char *p_log_level) {
 
@@ -72,8 +73,11 @@ static void mono_log_callback(const char *log_domain, const char *log_level, con
 
 	if (fatal) {
 		ERR_PRINTS("Mono: FATAL ERROR, ABORTING! Logfile: " + GDMonoLog::get_singleton()->get_log_file_path() + "\n");
-		// If we were to abort without flushing, the log wouldn't get written.
+		// Make sure to flush before aborting
 		f->flush();
+		f->close();
+		memdelete(f);
+
 		abort();
 	}
 }
@@ -93,17 +97,9 @@ bool GDMonoLog::_try_create_logs_dir(const String &p_logs_dir) {
 	return true;
 }
 
-void GDMonoLog::_open_log_file(const String &p_file_path) {
-
-	log_file = FileAccess::open(p_file_path, FileAccess::WRITE);
-
-	ERR_EXPLAIN("Failed to create log file");
-	ERR_FAIL_COND(!log_file);
-}
-
 void GDMonoLog::_delete_old_log_files(const String &p_logs_dir) {
 
-	static const uint64_t MAX_SECS = 5 * 86400;
+	static const uint64_t MAX_SECS = 5 * 86400; // 5 days
 
 	DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 	ERR_FAIL_COND(!da);
@@ -120,10 +116,9 @@ void GDMonoLog::_delete_old_log_files(const String &p_logs_dir) {
 		if (!current.ends_with(".txt"))
 			continue;
 
-		String name = current.get_basename();
-		uint64_t unixtime = (uint64_t)name.to_int64();
+		uint64_t modified_time = FileAccess::get_modified_time(da->get_current_dir().plus_file(current));
 
-		if (OS::get_singleton()->get_unix_time() - unixtime > MAX_SECS) {
+		if (OS::get_singleton()->get_unix_time() - modified_time > MAX_SECS) {
 			da->remove(current);
 		}
 	}
@@ -133,26 +128,47 @@ void GDMonoLog::_delete_old_log_files(const String &p_logs_dir) {
 
 void GDMonoLog::initialize() {
 
+	CharString log_level = OS::get_singleton()->get_environment("GODOT_MONO_LOG_LEVEL").utf8();
+
+	if (log_level.length() != 0 && log_level_get_id(log_level.get_data()) == -1) {
+		ERR_PRINTS(String() + "Mono: Ignoring invalid log level (GODOT_MONO_LOG_LEVEL): " + log_level.get_data());
+		log_level = CharString();
+	}
+
+	if (log_level.length() == 0) {
 #ifdef DEBUG_ENABLED
-	const char *log_level = "debug";
+		log_level = String("info").utf8();
 #else
-	const char *log_level = "warning";
+		log_level = String("warning").utf8();
 #endif
+	}
 
 	String logs_dir = GodotSharpDirs::get_mono_logs_dir();
 
 	if (_try_create_logs_dir(logs_dir)) {
 		_delete_old_log_files(logs_dir);
 
-		log_file_path = logs_dir.plus_file(String::num_int64(OS::get_singleton()->get_unix_time()) + ".txt");
-		_open_log_file(log_file_path);
+		OS::Date date_now = OS::get_singleton()->get_date();
+		OS::Time time_now = OS::get_singleton()->get_time();
+		int pid = OS::get_singleton()->get_process_id();
+
+		String log_file_name = str_format("%d_%02d_%02d %02d.%02d.%02d (%d).txt",
+				date_now.year, date_now.month, date_now.day,
+				time_now.hour, time_now.min, time_now.sec, pid);
+
+		log_file_path = logs_dir.plus_file(log_file_name);
+
+		log_file = FileAccess::open(log_file_path, FileAccess::WRITE);
+		if (!log_file) {
+			ERR_PRINT("Mono: Cannot create log file");
+		}
 	}
 
-	mono_trace_set_level_string(log_level);
-	log_level_id = log_level_get_id(log_level);
+	mono_trace_set_level_string(log_level.get_data());
+	log_level_id = log_level_get_id(log_level.get_data());
 
 	if (log_file) {
-		print_verbose("Mono: Logfile is " + log_file_path);
+		OS::get_singleton()->print("Mono: Logfile is: %s\n", log_file_path.utf8().get_data());
 		mono_trace_set_log_handler(mono_log_callback, this);
 	} else {
 		OS::get_singleton()->printerr("Mono: No log file, using default log handler\n");
diff --git a/modules/mono/mono_gd/gd_mono_log.h b/modules/mono/mono_gd/gd_mono_log.h
index a477e5edee..91d0557aa3 100644
--- a/modules/mono/mono_gd/gd_mono_log.h
+++ b/modules/mono/mono_gd/gd_mono_log.h
@@ -41,7 +41,6 @@ class GDMonoLog {
 	String log_file_path;
 
 	bool _try_create_logs_dir(const String &p_logs_dir);
-	void _open_log_file(const String &p_file_path);
 	void _delete_old_log_files(const String &p_logs_dir);
 
 	static GDMonoLog *singleton;
diff --git a/modules/mono/mono_gd/gd_mono_marshal.cpp b/modules/mono/mono_gd/gd_mono_marshal.cpp
index 7fe8ae608a..d586b73cf9 100644
--- a/modules/mono/mono_gd/gd_mono_marshal.cpp
+++ b/modules/mono/mono_gd/gd_mono_marshal.cpp
@@ -35,7 +35,7 @@
 
 namespace GDMonoMarshal {
 
-Variant::Type managed_to_variant_type(const ManagedType &p_type) {
+Variant::Type managed_to_variant_type(const ManagedType &p_type, ExportInfo *r_export_info) {
 	switch (p_type.type_encoding) {
 		case MONO_TYPE_BOOLEAN:
 			return Variant::BOOL;
@@ -156,26 +156,74 @@ Variant::Type managed_to_variant_type(const ManagedType &p_type) {
 			if (CACHED_CLASS(Array) == type_class) {
 				return Variant::ARRAY;
 			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				return Variant::DICTIONARY;
+			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+				return Variant::ARRAY;
+			}
 		} break;
 
 		case MONO_TYPE_GENERICINST: {
 			MonoReflectionType *reftype = mono_type_get_object(SCRIPTS_DOMAIN, p_type.type_class->get_mono_type());
 
 			MonoException *exc = NULL;
-			GDMonoUtils::IsDictionaryGenericType type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, IsDictionaryGenericType);
-			MonoBoolean is_dict = invoke_method_thunk(type_is_dict, (MonoObject *)reftype, (MonoObject **)&exc);
+			GDMonoUtils::TypeIsGenericDictionary type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericDictionary);
+			MonoBoolean is_dict = invoke_method_thunk(type_is_dict, reftype, &exc);
 			UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 			if (is_dict) {
+				if (r_export_info) {
+					MonoReflectionType *key_reftype;
+					MonoReflectionType *value_reftype;
+
+					exc = NULL;
+					invoke_method_thunk(CACHED_METHOD_THUNK(MarshalUtils, DictionaryGetKeyValueTypes),
+							reftype, &key_reftype, &value_reftype, &exc);
+					UNLIKELY_UNHANDLED_EXCEPTION(exc);
+
+					ManagedType key_type = ManagedType::from_reftype(key_reftype);
+					ManagedType value_type = ManagedType::from_reftype(value_reftype);
+
+					r_export_info->dictionary.key_type = managed_to_variant_type(key_type);
+					r_export_info->dictionary.key_native_name = NATIVE_GDMONOCLASS_NAME(key_type.type_class);
+					r_export_info->dictionary.value_type = managed_to_variant_type(value_type);
+					r_export_info->dictionary.value_native_name = NATIVE_GDMONOCLASS_NAME(value_type.type_class);
+				}
+
 				return Variant::DICTIONARY;
 			}
 
 			exc = NULL;
-			GDMonoUtils::IsArrayGenericType type_is_array = CACHED_METHOD_THUNK(MarshalUtils, IsArrayGenericType);
-			MonoBoolean is_array = invoke_method_thunk(type_is_array, (MonoObject *)reftype, (MonoObject **)&exc);
+			GDMonoUtils::TypeIsGenericArray type_is_array = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericArray);
+			MonoBoolean is_array = invoke_method_thunk(type_is_array, reftype, &exc);
 			UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 			if (is_array) {
+				if (r_export_info) {
+					MonoReflectionType *elem_reftype;
+
+					exc = NULL;
+					invoke_method_thunk(CACHED_METHOD_THUNK(MarshalUtils, ArrayGetElementType),
+							reftype, &elem_reftype, &exc);
+					UNLIKELY_UNHANDLED_EXCEPTION(exc);
+
+					ManagedType elem_type = ManagedType::from_reftype(elem_reftype);
+
+					r_export_info->array.element_type = managed_to_variant_type(elem_type);
+					r_export_info->array.element_native_name = NATIVE_GDMONOCLASS_NAME(elem_type.type_class);
+				}
+
+				return Variant::ARRAY;
+			}
+
+			if (p_type.type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				return Variant::DICTIONARY;
+			}
+
+			if (p_type.type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
 				return Variant::ARRAY;
 			}
 		} break;
@@ -453,6 +501,14 @@ MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_ty
 			if (CACHED_CLASS(Array) == type_class) {
 				return GDMonoUtils::create_managed_from(p_var->operator Array(), CACHED_CLASS(Array));
 			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				return GDMonoUtils::create_managed_from(p_var->operator Dictionary(), CACHED_CLASS(Dictionary));
+			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+				return GDMonoUtils::create_managed_from(p_var->operator Array(), CACHED_CLASS(Array));
+			}
 		} break;
 		case MONO_TYPE_OBJECT: {
 			// Variant
@@ -548,8 +604,8 @@ MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_ty
 				MonoReflectionType *reftype = mono_type_get_object(SCRIPTS_DOMAIN, p_type.type_class->get_mono_type());
 
 				MonoException *exc = NULL;
-				GDMonoUtils::IsDictionaryGenericType type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, IsDictionaryGenericType);
-				MonoBoolean is_dict = invoke_method_thunk(type_is_dict, (MonoObject *)reftype, (MonoObject **)&exc);
+				GDMonoUtils::TypeIsGenericDictionary type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericDictionary);
+				MonoBoolean is_dict = invoke_method_thunk(type_is_dict, reftype, &exc);
 				UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 				if (is_dict) {
@@ -557,13 +613,21 @@ MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_ty
 				}
 
 				exc = NULL;
-				GDMonoUtils::IsArrayGenericType type_is_array = CACHED_METHOD_THUNK(MarshalUtils, IsArrayGenericType);
-				MonoBoolean is_array = invoke_method_thunk(type_is_array, (MonoObject *)reftype, (MonoObject **)&exc);
+				GDMonoUtils::TypeIsGenericArray type_is_array = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericArray);
+				MonoBoolean is_array = invoke_method_thunk(type_is_array, reftype, &exc);
 				UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 				if (is_array) {
 					return GDMonoUtils::create_managed_from(p_var->operator Array(), p_type.type_class);
 				}
+
+				if (p_type.type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+					return GDMonoUtils::create_managed_from(p_var->operator Dictionary(), CACHED_CLASS(Dictionary));
+				}
+
+				if (p_type.type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+					return GDMonoUtils::create_managed_from(p_var->operator Array(), CACHED_CLASS(Array));
+				}
 			} break;
 		} break;
 	}
@@ -577,15 +641,9 @@ Variant mono_object_to_variant(MonoObject *p_obj) {
 	if (!p_obj)
 		return Variant();
 
-	GDMonoClass *tclass = GDMono::get_singleton()->get_class(mono_object_get_class(p_obj));
-	ERR_FAIL_COND_V(!tclass, Variant());
+	ManagedType type = ManagedType::from_class(mono_object_get_class(p_obj));
 
-	MonoType *raw_type = tclass->get_mono_type();
-
-	ManagedType type;
-
-	type.type_encoding = mono_type_get_type(raw_type);
-	type.type_class = tclass;
+	ERR_FAIL_COND_V(!type.type_class, Variant());
 
 	switch (type.type_encoding) {
 		case MONO_TYPE_BOOLEAN:
@@ -717,17 +775,33 @@ Variant mono_object_to_variant(MonoObject *p_obj) {
 
 			if (CACHED_CLASS(Array) == type_class) {
 				MonoException *exc = NULL;
-				Array *ptr = invoke_method_thunk(CACHED_METHOD_THUNK(Array, GetPtr), p_obj, (MonoObject **)&exc);
+				Array *ptr = invoke_method_thunk(CACHED_METHOD_THUNK(Array, GetPtr), p_obj, &exc);
 				UNLIKELY_UNHANDLED_EXCEPTION(exc);
 				return ptr ? Variant(*ptr) : Variant();
 			}
 
 			if (CACHED_CLASS(Dictionary) == type_class) {
 				MonoException *exc = NULL;
-				Dictionary *ptr = invoke_method_thunk(CACHED_METHOD_THUNK(Dictionary, GetPtr), p_obj, (MonoObject **)&exc);
+				Dictionary *ptr = invoke_method_thunk(CACHED_METHOD_THUNK(Dictionary, GetPtr), p_obj, &exc);
 				UNLIKELY_UNHANDLED_EXCEPTION(exc);
 				return ptr ? Variant(*ptr) : Variant();
 			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				Dictionary dict;
+				MonoException *exc = NULL;
+				invoke_method_thunk(CACHED_METHOD_THUNK(MarshalUtils, IDictionaryToDictionary), p_obj, &dict, &exc);
+				UNLIKELY_UNHANDLED_EXCEPTION(exc);
+				return dict;
+			}
+
+			if (type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+				Array array;
+				MonoException *exc = NULL;
+				invoke_method_thunk(CACHED_METHOD_THUNK(MarshalUtils, EnumerableToArray), p_obj, &array, &exc);
+				UNLIKELY_UNHANDLED_EXCEPTION(exc);
+				return array;
+			}
 		} break;
 
 		case MONO_TYPE_GENERICINST: {
@@ -735,8 +809,8 @@ Variant mono_object_to_variant(MonoObject *p_obj) {
 
 			MonoException *exc = NULL;
 
-			GDMonoUtils::IsDictionaryGenericType type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, IsDictionaryGenericType);
-			MonoBoolean is_dict = invoke_method_thunk(type_is_dict, (MonoObject *)reftype, (MonoObject **)&exc);
+			GDMonoUtils::TypeIsGenericDictionary type_is_dict = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericDictionary);
+			MonoBoolean is_dict = invoke_method_thunk(type_is_dict, reftype, &exc);
 			UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 			if (is_dict) {
@@ -748,8 +822,8 @@ Variant mono_object_to_variant(MonoObject *p_obj) {
 
 			exc = NULL;
 
-			GDMonoUtils::IsArrayGenericType type_is_array = CACHED_METHOD_THUNK(MarshalUtils, IsArrayGenericType);
-			MonoBoolean is_array = invoke_method_thunk(type_is_array, (MonoObject *)reftype, (MonoObject **)&exc);
+			GDMonoUtils::TypeIsGenericArray type_is_array = CACHED_METHOD_THUNK(MarshalUtils, TypeIsGenericArray);
+			MonoBoolean is_array = invoke_method_thunk(type_is_array, reftype, &exc);
 			UNLIKELY_UNHANDLED_EXCEPTION(exc);
 
 			if (is_array) {
@@ -758,6 +832,22 @@ Variant mono_object_to_variant(MonoObject *p_obj) {
 				UNLIKELY_UNHANDLED_EXCEPTION(exc);
 				return *unbox<Array *>(ret);
 			}
+
+			if (type.type_class->implements_interface(CACHED_CLASS(System_Collections_IDictionary))) {
+				Dictionary dict;
+				exc = NULL;
+				invoke_method_thunk(CACHED_METHOD_THUNK(MarshalUtils, IDictionaryToDictionary), p_obj, &dict, &exc);
+				UNLIKELY_UNHANDLED_EXCEPTION(exc);
+				return dict;
+			}
+
+			if (type.type_class->implements_interface(CACHED_CLASS(System_Collections_IEnumerable))) {
+				Array array;
+				exc = NULL;
+				invoke_method_thunk(CACHED_METHOD_THUNK(MarshalUtils, EnumerableToArray), p_obj, &array, &exc);
+				UNLIKELY_UNHANDLED_EXCEPTION(exc);
+				return array;
+			}
 		} break;
 	}
 
diff --git a/modules/mono/mono_gd/gd_mono_marshal.h b/modules/mono/mono_gd/gd_mono_marshal.h
index 4f86e02f87..8d3fd4b349 100644
--- a/modules/mono/mono_gd/gd_mono_marshal.h
+++ b/modules/mono/mono_gd/gd_mono_marshal.h
@@ -32,6 +32,7 @@
 #define GDMONOMARSHAL_H
 
 #include "core/variant.h"
+
 #include "gd_mono.h"
 #include "gd_mono_utils.h"
 
@@ -56,7 +57,28 @@ T unbox(MonoObject *p_obj) {
 #define BOX_PTR(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(IntPtr), x)
 #define BOX_ENUM(m_enum_class, x) mono_value_box(mono_domain_get(), m_enum_class, &x)
 
-Variant::Type managed_to_variant_type(const ManagedType &p_type);
+// FIXME: Made this struct in a hurry. It could be done differently.
+struct ExportInfo {
+	struct ArrayInfo {
+		Variant::Type element_type;
+		String element_native_name;
+
+		ArrayInfo() :
+				element_type(Variant::NIL) {}
+	} array;
+	struct DictionaryInfo {
+		Variant::Type key_type;
+		String key_native_name;
+		Variant::Type value_type;
+		String value_native_name;
+
+		DictionaryInfo() :
+				key_type(Variant::NIL),
+				value_type(Variant::NIL) {}
+	} dictionary;
+};
+
+Variant::Type managed_to_variant_type(const ManagedType &p_type, ExportInfo *r_export_info = NULL);
 
 // String
 
diff --git a/modules/mono/mono_gd/gd_mono_utils.cpp b/modules/mono/mono_gd/gd_mono_utils.cpp
index 6cc1c8afc2..bcf5712d16 100644
--- a/modules/mono/mono_gd/gd_mono_utils.cpp
+++ b/modules/mono/mono_gd/gd_mono_utils.cpp
@@ -63,6 +63,7 @@ MonoCache mono_cache;
 #define CACHE_FIELD_AND_CHECK(m_class, m_field, m_val) CACHE_AND_CHECK(GDMonoUtils::mono_cache.field_##m_class##_##m_field, m_val)
 #define CACHE_METHOD_AND_CHECK(m_class, m_method, m_val) CACHE_AND_CHECK(GDMonoUtils::mono_cache.method_##m_class##_##m_method, m_val)
 #define CACHE_METHOD_THUNK_AND_CHECK(m_class, m_method, m_val) CACHE_AND_CHECK(GDMonoUtils::mono_cache.methodthunk_##m_class##_##m_method, m_val)
+#define CACHE_PROPERTY_AND_CHECK(m_class, m_property, m_val) CACHE_AND_CHECK(GDMonoUtils::mono_cache.property_##m_class##_##m_property, m_val)
 
 void MonoCache::clear_members() {
 
@@ -81,6 +82,9 @@ void MonoCache::clear_members() {
 	class_String = NULL;
 	class_IntPtr = NULL;
 
+	class_System_Collections_IEnumerable = NULL;
+	class_System_Collections_IDictionary = NULL;
+
 #ifdef DEBUG_ENABLED
 	class_System_Diagnostics_StackTrace = NULL;
 	methodthunk_System_Diagnostics_StackTrace_GetFrames = NULL;
@@ -143,12 +147,17 @@ void MonoCache::clear_members() {
 	methodthunk_GodotObject_Dispose = NULL;
 	methodthunk_Array_GetPtr = NULL;
 	methodthunk_Dictionary_GetPtr = NULL;
-	methodthunk_MarshalUtils_IsArrayGenericType = NULL;
-	methodthunk_MarshalUtils_IsDictionaryGenericType = NULL;
 	methodthunk_SignalAwaiter_SignalCallback = NULL;
 	methodthunk_SignalAwaiter_FailureCallback = NULL;
 	methodthunk_GodotTaskScheduler_Activate = NULL;
 
+	methodthunk_MarshalUtils_TypeIsGenericArray = NULL;
+	methodthunk_MarshalUtils_TypeIsGenericDictionary = NULL;
+	methodthunk_MarshalUtils_ArrayGetElementType = NULL;
+	methodthunk_MarshalUtils_DictionaryGetKeyValueTypes = NULL;
+	methodthunk_MarshalUtils_EnumerableToArray = NULL;
+	methodthunk_MarshalUtils_IDictionaryToDictionary = NULL;
+
 	task_scheduler_handle = Ref<MonoGCHandle>();
 }
 
@@ -178,6 +187,9 @@ void update_corlib_cache() {
 	CACHE_CLASS_AND_CHECK(String, GDMono::get_singleton()->get_corlib_assembly()->get_class(mono_get_string_class()));
 	CACHE_CLASS_AND_CHECK(IntPtr, GDMono::get_singleton()->get_corlib_assembly()->get_class(mono_get_intptr_class()));
 
+	CACHE_CLASS_AND_CHECK(System_Collections_IEnumerable, GDMono::get_singleton()->get_corlib_assembly()->get_class("System.Collections", "IEnumerable"));
+	CACHE_CLASS_AND_CHECK(System_Collections_IDictionary, GDMono::get_singleton()->get_corlib_assembly()->get_class("System.Collections", "IDictionary"));
+
 #ifdef DEBUG_ENABLED
 	CACHE_CLASS_AND_CHECK(System_Diagnostics_StackTrace, GDMono::get_singleton()->get_corlib_assembly()->get_class("System.Diagnostics", "StackTrace"));
 	CACHE_METHOD_THUNK_AND_CHECK(System_Diagnostics_StackTrace, GetFrames, (StackTrace_GetFrames)CACHED_CLASS(System_Diagnostics_StackTrace)->get_method_thunk("GetFrames"));
@@ -242,12 +254,17 @@ void update_godot_api_cache() {
 	CACHE_METHOD_THUNK_AND_CHECK(GodotObject, Dispose, (GodotObject_Dispose)CACHED_CLASS(GodotObject)->get_method_thunk("Dispose", 0));
 	CACHE_METHOD_THUNK_AND_CHECK(Array, GetPtr, (Array_GetPtr)GODOT_API_NS_CLAS(BINDINGS_NAMESPACE_COLLECTIONS, Array)->get_method_thunk("GetPtr", 0));
 	CACHE_METHOD_THUNK_AND_CHECK(Dictionary, GetPtr, (Dictionary_GetPtr)GODOT_API_NS_CLAS(BINDINGS_NAMESPACE_COLLECTIONS, Dictionary)->get_method_thunk("GetPtr", 0));
-	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, IsArrayGenericType, (IsArrayGenericType)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("IsArrayGenericType", 1));
-	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, IsDictionaryGenericType, (IsDictionaryGenericType)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("IsDictionaryGenericType", 1));
 	CACHE_METHOD_THUNK_AND_CHECK(SignalAwaiter, SignalCallback, (SignalAwaiter_SignalCallback)GODOT_API_CLASS(SignalAwaiter)->get_method_thunk("SignalCallback", 1));
 	CACHE_METHOD_THUNK_AND_CHECK(SignalAwaiter, FailureCallback, (SignalAwaiter_FailureCallback)GODOT_API_CLASS(SignalAwaiter)->get_method_thunk("FailureCallback", 0));
 	CACHE_METHOD_THUNK_AND_CHECK(GodotTaskScheduler, Activate, (GodotTaskScheduler_Activate)GODOT_API_CLASS(GodotTaskScheduler)->get_method_thunk("Activate", 0));
 
+	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, TypeIsGenericArray, (TypeIsGenericArray)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("TypeIsGenericArray", 1));
+	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, TypeIsGenericDictionary, (TypeIsGenericDictionary)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("TypeIsGenericDictionary", 1));
+	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, ArrayGetElementType, (ArrayGetElementType)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("ArrayGetElementType", 2));
+	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, DictionaryGetKeyValueTypes, (DictionaryGetKeyValueTypes)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("DictionaryGetKeyValueTypes", 3));
+	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, EnumerableToArray, (EnumerableToArray)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("EnumerableToArray", 2));
+	CACHE_METHOD_THUNK_AND_CHECK(MarshalUtils, IDictionaryToDictionary, (IDictionaryToDictionary)GODOT_API_CLASS(MarshalUtils)->get_method_thunk("IDictionaryToDictionary", 2));
+
 #ifdef DEBUG_ENABLED
 	CACHE_METHOD_THUNK_AND_CHECK(DebuggingUtils, GetStackFrameInfo, (DebugUtils_StackFrameInfo)GODOT_API_CLASS(DebuggingUtils)->get_method_thunk("GetStackFrameInfo", 4));
 #endif
@@ -615,11 +632,6 @@ void debug_send_unhandled_exception_error(MonoException *p_exc) {
 }
 
 void debug_unhandled_exception(MonoException *p_exc) {
-#ifdef DEBUG_ENABLED
-	GDMonoUtils::debug_send_unhandled_exception_error(p_exc);
-	if (ScriptDebugger::get_singleton())
-		ScriptDebugger::get_singleton()->idle_poll();
-#endif
 	GDMonoInternals::unhandled_exception(p_exc); // prints the exception as well
 	GD_UNREACHABLE();
 }
@@ -712,7 +724,7 @@ uint64_t unbox_enum_value(MonoObject *p_boxed, MonoType *p_enum_basetype, bool &
 }
 
 void dispose(MonoObject *p_mono_object, MonoException **r_exc) {
-	invoke_method_thunk(CACHED_METHOD_THUNK(GodotObject, Dispose), p_mono_object, (MonoObject **)r_exc);
+	invoke_method_thunk(CACHED_METHOD_THUNK(GodotObject, Dispose), p_mono_object, r_exc);
 }
 
 } // namespace GDMonoUtils
diff --git a/modules/mono/mono_gd/gd_mono_utils.h b/modules/mono/mono_gd/gd_mono_utils.h
index e88bf1ced9..87610e286c 100644
--- a/modules/mono/mono_gd/gd_mono_utils.h
+++ b/modules/mono/mono_gd/gd_mono_utils.h
@@ -49,18 +49,21 @@
 
 namespace GDMonoUtils {
 
-typedef void (*GodotObject_Dispose)(MonoObject *, MonoObject **);
-typedef Array *(*Array_GetPtr)(MonoObject *, MonoObject **);
-typedef Dictionary *(*Dictionary_GetPtr)(MonoObject *, MonoObject **);
-typedef MonoObject *(*SignalAwaiter_SignalCallback)(MonoObject *, MonoArray *, MonoObject **);
-typedef MonoObject *(*SignalAwaiter_FailureCallback)(MonoObject *, MonoObject **);
-typedef MonoObject *(*GodotTaskScheduler_Activate)(MonoObject *, MonoObject **);
-typedef MonoArray *(*StackTrace_GetFrames)(MonoObject *, MonoObject **);
-typedef MonoBoolean (*IsArrayGenericType)(MonoObject *, MonoObject **);
-typedef MonoBoolean (*IsDictionaryGenericType)(MonoObject *, MonoObject **);
-typedef MonoBoolean (*IsArrayGenericType)(MonoObject *, MonoObject **);
-typedef MonoBoolean (*IsDictionaryGenericType)(MonoObject *, MonoObject **);
-typedef void (*DebugUtils_StackFrameInfo)(MonoObject *, MonoString **, int *, MonoString **, MonoObject **);
+typedef void (*GodotObject_Dispose)(MonoObject *, MonoException **);
+typedef Array *(*Array_GetPtr)(MonoObject *, MonoException **);
+typedef Dictionary *(*Dictionary_GetPtr)(MonoObject *, MonoException **);
+typedef MonoObject *(*SignalAwaiter_SignalCallback)(MonoObject *, MonoArray *, MonoException **);
+typedef MonoObject *(*SignalAwaiter_FailureCallback)(MonoObject *, MonoException **);
+typedef MonoObject *(*GodotTaskScheduler_Activate)(MonoObject *, MonoException **);
+typedef MonoArray *(*StackTrace_GetFrames)(MonoObject *, MonoException **);
+typedef void (*DebugUtils_StackFrameInfo)(MonoObject *, MonoString **, int *, MonoString **, MonoException **);
+
+typedef MonoBoolean (*TypeIsGenericArray)(MonoReflectionType *, MonoException **);
+typedef MonoBoolean (*TypeIsGenericDictionary)(MonoReflectionType *, MonoException **);
+typedef MonoBoolean (*ArrayGetElementType)(MonoReflectionType *, MonoReflectionType **, MonoException **);
+typedef MonoBoolean (*DictionaryGetKeyValueTypes)(MonoReflectionType *, MonoReflectionType **, MonoReflectionType **, MonoException **);
+typedef void (*EnumerableToArray)(MonoObject *, Array *, MonoException **);
+typedef void (*IDictionaryToDictionary)(MonoObject *, Dictionary *, MonoException **);
 
 struct MonoCache {
 
@@ -83,6 +86,9 @@ struct MonoCache {
 	GDMonoClass *class_String;
 	GDMonoClass *class_IntPtr;
 
+	GDMonoClass *class_System_Collections_IEnumerable;
+	GDMonoClass *class_System_Collections_IDictionary;
+
 #ifdef DEBUG_ENABLED
 	GDMonoClass *class_System_Diagnostics_StackTrace;
 	StackTrace_GetFrames methodthunk_System_Diagnostics_StackTrace_GetFrames;
@@ -146,12 +152,17 @@ struct MonoCache {
 	GodotObject_Dispose methodthunk_GodotObject_Dispose;
 	Array_GetPtr methodthunk_Array_GetPtr;
 	Dictionary_GetPtr methodthunk_Dictionary_GetPtr;
-	IsArrayGenericType methodthunk_MarshalUtils_IsArrayGenericType;
-	IsDictionaryGenericType methodthunk_MarshalUtils_IsDictionaryGenericType;
 	SignalAwaiter_SignalCallback methodthunk_SignalAwaiter_SignalCallback;
 	SignalAwaiter_FailureCallback methodthunk_SignalAwaiter_FailureCallback;
 	GodotTaskScheduler_Activate methodthunk_GodotTaskScheduler_Activate;
 
+	TypeIsGenericArray methodthunk_MarshalUtils_TypeIsGenericArray;
+	TypeIsGenericDictionary methodthunk_MarshalUtils_TypeIsGenericDictionary;
+	ArrayGetElementType methodthunk_MarshalUtils_ArrayGetElementType;
+	DictionaryGetKeyValueTypes methodthunk_MarshalUtils_DictionaryGetKeyValueTypes;
+	EnumerableToArray methodthunk_MarshalUtils_EnumerableToArray;
+	IDictionaryToDictionary methodthunk_MarshalUtils_IDictionaryToDictionary;
+
 	Ref<MonoGCHandle> task_scheduler_handle;
 
 	bool corlib_cache_updated;
@@ -255,6 +266,7 @@ void dispose(MonoObject *p_mono_object, MonoException **r_exc);
 #define CACHED_FIELD(m_class, m_field) (GDMonoUtils::mono_cache.field_##m_class##_##m_field)
 #define CACHED_METHOD(m_class, m_method) (GDMonoUtils::mono_cache.method_##m_class##_##m_method)
 #define CACHED_METHOD_THUNK(m_class, m_method) (GDMonoUtils::mono_cache.methodthunk_##m_class##_##m_method)
+#define CACHED_PROPERTY(m_class, m_property) (GDMonoUtils::mono_cache.property_##m_class##_##m_property)
 
 #ifdef REAL_T_IS_DOUBLE
 #define REAL_T_MONOCLASS CACHED_CLASS_RAW(double)
diff --git a/modules/mono/mono_gd/managed_type.cpp b/modules/mono/mono_gd/managed_type.cpp
new file mode 100644
index 0000000000..9f736b71cd
--- /dev/null
+++ b/modules/mono/mono_gd/managed_type.cpp
@@ -0,0 +1,58 @@
+/*************************************************************************/
+/*  managed_type.cpp                                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "managed_type.h"
+
+#include "gd_mono.h"
+#include "gd_mono_class.h"
+
+ManagedType ManagedType::from_class(GDMonoClass *p_class) {
+	return ManagedType(mono_type_get_type(p_class->get_mono_type()), p_class);
+}
+
+ManagedType ManagedType::from_class(MonoClass *p_mono_class) {
+	GDMonoClass *tclass = GDMono::get_singleton()->get_class(p_mono_class);
+	ERR_FAIL_COND_V(!tclass, ManagedType());
+
+	return ManagedType(mono_type_get_type(tclass->get_mono_type()), tclass);
+}
+
+ManagedType ManagedType::from_type(MonoType *p_mono_type) {
+	MonoClass *mono_class = mono_class_from_mono_type(p_mono_type);
+	GDMonoClass *tclass = GDMono::get_singleton()->get_class(mono_class);
+	ERR_FAIL_COND_V(!tclass, ManagedType());
+
+	return ManagedType(mono_type_get_type(p_mono_type), tclass);
+}
+
+ManagedType ManagedType::from_reftype(MonoReflectionType *p_mono_reftype) {
+	MonoType *mono_type = mono_reflection_type_get_type(p_mono_reftype);
+	return from_type(mono_type);
+}
diff --git a/modules/mono/mono_gd/managed_type.h b/modules/mono/mono_gd/managed_type.h
new file mode 100644
index 0000000000..a537e56aea
--- /dev/null
+++ b/modules/mono/mono_gd/managed_type.h
@@ -0,0 +1,58 @@
+/*************************************************************************/
+/*  managed_type.h                                                       */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef MANAGED_TYPE_H
+#define MANAGED_TYPE_H
+
+#include <mono/metadata/object.h>
+
+#include "gd_mono_header.h"
+
+struct ManagedType {
+	int type_encoding;
+	GDMonoClass *type_class;
+
+	static ManagedType from_class(GDMonoClass *p_class);
+	static ManagedType from_class(MonoClass *p_mono_class);
+	static ManagedType from_type(MonoType *p_mono_type);
+	static ManagedType from_reftype(MonoReflectionType *p_mono_reftype);
+
+	ManagedType() :
+			type_encoding(0),
+			type_class(NULL) {
+	}
+
+	ManagedType(int p_type_encoding, GDMonoClass *p_type_class) :
+			type_encoding(p_type_encoding),
+			type_class(p_type_class) {
+	}
+};
+
+#endif // MANAGED_TYPE_H
diff --git a/modules/mono/signal_awaiter_utils.cpp b/modules/mono/signal_awaiter_utils.cpp
index 5051d83694..5d37e8212f 100644
--- a/modules/mono/signal_awaiter_utils.cpp
+++ b/modules/mono/signal_awaiter_utils.cpp
@@ -100,7 +100,7 @@ Variant SignalAwaiterHandle::_signal_callback(const Variant **p_args, int p_argc
 
 	MonoException *exc = NULL;
 	GD_MONO_BEGIN_RUNTIME_INVOKE;
-	invoke_method_thunk(CACHED_METHOD_THUNK(SignalAwaiter, SignalCallback), get_target(), signal_args, (MonoObject **)&exc);
+	invoke_method_thunk(CACHED_METHOD_THUNK(SignalAwaiter, SignalCallback), get_target(), signal_args, &exc);
 	GD_MONO_END_RUNTIME_INVOKE;
 
 	if (exc) {
@@ -132,7 +132,7 @@ SignalAwaiterHandle::~SignalAwaiterHandle() {
 		if (awaiter) {
 			MonoException *exc = NULL;
 			GD_MONO_BEGIN_RUNTIME_INVOKE;
-			invoke_method_thunk(CACHED_METHOD_THUNK(SignalAwaiter, FailureCallback), awaiter, (MonoObject **)&exc);
+			invoke_method_thunk(CACHED_METHOD_THUNK(SignalAwaiter, FailureCallback), awaiter, &exc);
 			GD_MONO_END_RUNTIME_INVOKE;
 
 			if (exc) {
diff --git a/modules/mono/utils/mono_reg_utils.cpp b/modules/mono/utils/mono_reg_utils.cpp
index d7f9b22c31..98aeadc8c8 100644
--- a/modules/mono/utils/mono_reg_utils.cpp
+++ b/modules/mono/utils/mono_reg_utils.cpp
@@ -202,9 +202,9 @@ String find_msbuild_tools_path() {
 					}
 
 					// Since VS2019, the directory is simply named "Current"
-					String msBuildDirectory = val + "MSBuild\\Current\\Bin";
-					if (DirAccess::exists(msBuildDirectory)) {
-						return msBuildDirectory;
+					String msbuild_dir = val + "MSBuild\\Current\\Bin";
+					if (DirAccess::exists(msbuild_dir)) {
+						return msbuild_dir;
 					}
 
 					// Directory name "15.0" is used in VS 2017
diff --git a/modules/mono/utils/string_utils.cpp b/modules/mono/utils/string_utils.cpp
index c390f8b9c2..877122985d 100644
--- a/modules/mono/utils/string_utils.cpp
+++ b/modules/mono/utils/string_utils.cpp
@@ -32,6 +32,9 @@
 
 #include "core/os/file_access.h"
 
+#include <stdio.h>
+#include <stdlib.h>
+
 namespace {
 
 int sfind(const String &p_text, int p_from) {
@@ -63,7 +66,7 @@ int sfind(const String &p_text, int p_from) {
 					break;
 				case 1: {
 					CharType c = src[read_pos];
-					found = src[read_pos] == 's' || (c >= '0' || c <= '4');
+					found = src[read_pos] == 's' || (c >= '0' && c <= '4');
 					break;
 				}
 				default:
@@ -184,3 +187,50 @@ Error read_all_file_utf8(const String &p_path, String &r_content) {
 	r_content = source;
 	return OK;
 }
+
+// TODO: Move to variadic templates once we upgrade to C++11
+
+String str_format(const char *p_format, ...) {
+	va_list list;
+
+	va_start(list, p_format);
+	String res = str_format(p_format, list);
+	va_end(list);
+
+	return res;
+}
+// va_copy was defined in the C99, but not in C++ standards before C++11.
+// When you compile C++ without --std=c++<XX> option, compilers still define
+// va_copy, otherwise you have to use the internal version (__va_copy).
+#if !defined(va_copy)
+#if defined(__GNUC__)
+#define va_copy(d, s) __va_copy((d), (s))
+#else
+#define va_copy(d, s) ((d) = (s))
+#endif
+#endif
+
+#if defined(MINGW_ENABLED) || defined(_MSC_VER) && _MSC_VER < 1900
+#define vsnprintf(m_buffer, m_count, m_format, m_argptr) vsnprintf_s(m_buffer, m_count, _TRUNCATE, m_format, m_argptr)
+#endif
+
+String str_format(const char *p_format, va_list p_list) {
+	va_list list;
+
+	va_copy(list, p_list);
+	int len = vsnprintf(NULL, 0, p_format, list);
+	va_end(list);
+
+	len += 1; // for the trailing '/0'
+
+	char *buffer(memnew_arr(char, len));
+
+	va_copy(list, p_list);
+	vsnprintf(buffer, len, p_format, list);
+	va_end(list);
+
+	String res(buffer);
+	memdelete_arr(buffer);
+
+	return res;
+}
diff --git a/modules/mono/utils/string_utils.h b/modules/mono/utils/string_utils.h
index 61765ccfd8..565b9bb644 100644
--- a/modules/mono/utils/string_utils.h
+++ b/modules/mono/utils/string_utils.h
@@ -34,6 +34,8 @@
 #include "core/ustring.h"
 #include "core/variant.h"
 
+#include <stdarg.h>
+
 String sformat(const String &p_text, const Variant &p1 = Variant(), const Variant &p2 = Variant(), const Variant &p3 = Variant(), const Variant &p4 = Variant(), const Variant &p5 = Variant());
 
 #ifdef TOOLS_ENABLED
@@ -44,4 +46,15 @@ String escape_csharp_keyword(const String &p_name);
 
 Error read_all_file_utf8(const String &p_path, String &r_content);
 
+#if defined(__GNUC__)
+#define _PRINTF_FORMAT_ATTRIBUTE_1_0 __attribute__((format(printf, 1, 0)))
+#define _PRINTF_FORMAT_ATTRIBUTE_1_2 __attribute__((format(printf, 1, 2)))
+#else
+#define _PRINTF_FORMAT_ATTRIBUTE_1_0
+#define _PRINTF_FORMAT_ATTRIBUTE_1_2
+#endif
+
+String str_format(const char *p_format, ...) _PRINTF_FORMAT_ATTRIBUTE_1_2;
+String str_format(const char *p_format, va_list p_list) _PRINTF_FORMAT_ATTRIBUTE_1_0;
+
 #endif // STRING_FORMAT_H
diff --git a/modules/mono/utils/thread_local.h b/modules/mono/utils/thread_local.h
index 276db8830b..488cc2619a 100644
--- a/modules/mono/utils/thread_local.h
+++ b/modules/mono/utils/thread_local.h
@@ -39,7 +39,7 @@
 #error Platform or compiler not supported
 #endif
 
-#ifdef __GNUC__
+#if defined(__GNUC__)
 
 #ifdef HAVE_GCC___THREAD
 #define _THREAD_LOCAL_(m_t) __thread m_t
@@ -47,7 +47,7 @@
 #define USE_CUSTOM_THREAD_LOCAL
 #endif
 
-#elif _MSC_VER
+#elif defined(_MSC_VER)
 
 #ifdef HAVE_DECLSPEC_THREAD
 #define _THREAD_LOCAL_(m_t) __declspec(thread) m_t
diff --git a/modules/ogg/SCsub b/modules/ogg/SCsub
index 765a9fc11a..6a72a519fe 100644
--- a/modules/ogg/SCsub
+++ b/modules/ogg/SCsub
@@ -14,7 +14,7 @@ if env['builtin_libogg']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_ogg.Append(CPPPATH=[thirdparty_dir])
+    env_ogg.Prepend(CPPPATH=[thirdparty_dir])
 
     env_thirdparty = env_ogg.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/opensimplex/SCsub b/modules/opensimplex/SCsub
index 4235f6a0b9..311d33b047 100644
--- a/modules/opensimplex/SCsub
+++ b/modules/opensimplex/SCsub
@@ -12,7 +12,7 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_opensimplex.Append(CPPPATH=[thirdparty_dir])
+env_opensimplex.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_opensimplex.Clone()
 env_thirdparty.disable_warnings()
diff --git a/modules/opensimplex/doc_classes/NoiseTexture.xml b/modules/opensimplex/doc_classes/NoiseTexture.xml
index a91114b2f7..c789724fc4 100644
--- a/modules/opensimplex/doc_classes/NoiseTexture.xml
+++ b/modules/opensimplex/doc_classes/NoiseTexture.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="NoiseTexture" inherits="Texture" category="Core" version="3.1">
+<class name="NoiseTexture" inherits="Texture" category="Core" version="3.2">
 	<brief_description>
 		[OpenSimplexNoise] filled texture.
 	</brief_description>
@@ -9,13 +9,11 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
 		<member name="as_normalmap" type="bool" setter="set_as_normalmap" getter="is_normalmap">
-			If true, the resulting texture contains a normal map created from the original noise interpreted as a bump map.
+			If [code]true[/code], the resulting texture contains a normal map created from the original noise interpreted as a bump map.
 		</member>
 		<member name="bump_strength" type="float" setter="set_bump_strength" getter="get_bump_strength">
 		</member>
diff --git a/modules/opensimplex/doc_classes/OpenSimplexNoise.xml b/modules/opensimplex/doc_classes/OpenSimplexNoise.xml
index 31f13f341c..dc7fc7fe31 100644
--- a/modules/opensimplex/doc_classes/OpenSimplexNoise.xml
+++ b/modules/opensimplex/doc_classes/OpenSimplexNoise.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="OpenSimplexNoise" inherits="Resource" category="Core" version="3.1">
+<class name="OpenSimplexNoise" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		Noise generator based on Open Simplex.
 	</brief_description>
@@ -23,8 +23,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_image">
 			<return type="Image">
@@ -37,6 +35,14 @@
 				Generate a noise image with the requested [code]width[/code] and [code]height[/code], based on the current noise parameters.
 			</description>
 		</method>
+		<method name="get_noise_1d">
+			<return type="float">
+			</return>
+			<argument index="0" name="x" type="float">
+			</argument>
+			<description>
+			</description>
+		</method>
 		<method name="get_noise_2d">
 			<return type="float">
 			</return>
diff --git a/modules/opensimplex/open_simplex_noise.cpp b/modules/opensimplex/open_simplex_noise.cpp
index b2d6b5e718..3a3a698e5c 100644
--- a/modules/opensimplex/open_simplex_noise.cpp
+++ b/modules/opensimplex/open_simplex_noise.cpp
@@ -173,6 +173,7 @@ void OpenSimplexNoise::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_image", "width", "height"), &OpenSimplexNoise::get_image);
 	ClassDB::bind_method(D_METHOD("get_seamless_image", "size"), &OpenSimplexNoise::get_seamless_image);
 
+	ClassDB::bind_method(D_METHOD("get_noise_1d", "x"), &OpenSimplexNoise::get_noise_1d);
 	ClassDB::bind_method(D_METHOD("get_noise_2d", "x", "y"), &OpenSimplexNoise::get_noise_2d);
 	ClassDB::bind_method(D_METHOD("get_noise_3d", "x", "y", "z"), &OpenSimplexNoise::get_noise_3d);
 	ClassDB::bind_method(D_METHOD("get_noise_4d", "x", "y", "z", "w"), &OpenSimplexNoise::get_noise_4d);
@@ -187,6 +188,11 @@ void OpenSimplexNoise::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "lacunarity", PROPERTY_HINT_RANGE, "0.1,4.0,0.01"), "set_lacunarity", "get_lacunarity");
 }
 
+float OpenSimplexNoise::get_noise_1d(float x) {
+
+	return get_noise_2d(x, 1.0);
+}
+
 float OpenSimplexNoise::get_noise_2d(float x, float y) {
 
 	x /= period;
diff --git a/modules/opensimplex/open_simplex_noise.h b/modules/opensimplex/open_simplex_noise.h
index ac4c6e361f..96885f5893 100644
--- a/modules/opensimplex/open_simplex_noise.h
+++ b/modules/opensimplex/open_simplex_noise.h
@@ -73,6 +73,7 @@ public:
 	Ref<Image> get_image(int p_width, int p_height);
 	Ref<Image> get_seamless_image(int p_size);
 
+	float get_noise_1d(float x);
 	float get_noise_2d(float x, float y);
 	float get_noise_3d(float x, float y, float z);
 	float get_noise_4d(float x, float y, float z, float w);
diff --git a/modules/opus/SCsub b/modules/opus/SCsub
index aa656c575a..f3c981dd45 100644
--- a/modules/opus/SCsub
+++ b/modules/opus/SCsub
@@ -139,7 +139,7 @@ if env['builtin_opus']:
     opus_sources_silk = []
 
     if env["platform"] in ["android", "iphone", "javascript"]:
-        env_opus.Append(CFLAGS=["-DFIXED_POINT"])
+        env_opus.Append(CPPFLAGS=["-DFIXED_POINT"])
         opus_sources_silk = [
             "silk/fixed/LTP_analysis_filter_FIX.c",
             "silk/fixed/LTP_scale_ctrl_FIX.c",
@@ -206,9 +206,9 @@ if env['builtin_opus']:
 
     # also requires libogg
     if env['builtin_libogg']:
-        env_opus.Append(CPPPATH=["#thirdparty/libogg"])
+        env_opus.Prepend(CPPPATH=["#thirdparty/libogg"])
 
-    env_opus.Append(CFLAGS=["-DHAVE_CONFIG_H"])
+    env_opus.Append(CPPFLAGS=["-DHAVE_CONFIG_H"])
 
     thirdparty_include_paths = [
         "",
@@ -218,13 +218,18 @@ if env['builtin_opus']:
         "silk/fixed",
         "silk/float",
     ]
-    env_opus.Append(CPPPATH=[thirdparty_dir + "/" + dir for dir in thirdparty_include_paths])
-
-    if env["platform"] == "android" or env["platform"] == "iphone":
-        if ("arch" in env and env["arch"] == "arm") or ("android_arch" in env and env["android_arch"] in ["armv6", "armv7"]):
-            env_opus.Append(CFLAGS=["-DOPUS_ARM_OPT"])
-        elif ("arch" in env and env["arch"] == "arm64") or ("android_arch" in env and env["android_arch"] == "arm64v8"):
-            env_opus.Append(CFLAGS=["-DOPUS_ARM64_OPT"])
+    env_opus.Prepend(CPPPATH=[thirdparty_dir + "/" + dir for dir in thirdparty_include_paths])
+
+    if env["platform"] == "android":
+        if ("android_arch" in env and env["android_arch"] in ["armv6", "armv7"]):
+            env_opus.Append(CPPFLAGS=["-DOPUS_ARM_OPT"])
+        elif ("android_arch" in env and env["android_arch"] == "arm64v8"):
+            env_opus.Append(CPPFLAGS=["-DOPUS_ARM64_OPT"])
+    elif env["platform"] == "iphone":
+        if ("arch" in env and env["arch"] == "arm"):
+            env_opus.Append(CPPFLAGS=["-DOPUS_ARM_OPT"])
+        elif ("arch" in env and env["arch"] == "arm64"):
+            env_opus.Append(CPPFLAGS=["-DOPUS_ARM64_OPT"])
 
     env_thirdparty = env_opus.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/pvr/SCsub b/modules/pvr/SCsub
index 2e4a792a36..18da38fbbd 100644
--- a/modules/pvr/SCsub
+++ b/modules/pvr/SCsub
@@ -17,7 +17,7 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_pvr.Append(CPPPATH=[thirdparty_dir])
+env_pvr.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_pvr.Clone()
 env_thirdparty.disable_warnings()
diff --git a/modules/pvr/texture_loader_pvr.cpp b/modules/pvr/texture_loader_pvr.cpp
index 82f323e8cf..8f6ffcc83f 100644
--- a/modules/pvr/texture_loader_pvr.cpp
+++ b/modules/pvr/texture_loader_pvr.cpp
@@ -192,9 +192,9 @@ static void _compress_pvrtc4(Image *p_img) {
 	Ref<Image> img = p_img->duplicate();
 
 	bool make_mipmaps = false;
-	if (img->get_width() % 8 || img->get_height() % 8) {
+	if (!img->is_size_po2() || img->get_width() != img->get_height()) {
 		make_mipmaps = img->has_mipmaps();
-		img->resize(img->get_width() + (8 - (img->get_width() % 8)), img->get_height() + (8 - (img->get_height() % 8)));
+		img->resize_to_po2(true);
 	}
 	img->convert(Image::FORMAT_RGBA8);
 	if (!img->has_mipmaps() && make_mipmaps)
@@ -204,7 +204,7 @@ static void _compress_pvrtc4(Image *p_img) {
 
 	Ref<Image> new_img;
 	new_img.instance();
-	new_img->create(img->get_width(), img->get_height(), true, use_alpha ? Image::FORMAT_PVRTC4A : Image::FORMAT_PVRTC4);
+	new_img->create(img->get_width(), img->get_height(), img->has_mipmaps(), use_alpha ? Image::FORMAT_PVRTC4A : Image::FORMAT_PVRTC4);
 
 	PoolVector<uint8_t> data = new_img->get_data();
 	{
@@ -221,7 +221,6 @@ static void _compress_pvrtc4(Image *p_img) {
 				/* red and Green colors are swapped.  */
 				new (dp) Javelin::ColorRgba<unsigned char>(r[ofs + 4 * j + 2], r[ofs + 4 * j + 1], r[ofs + 4 * j], r[ofs + 4 * j + 3]);
 			}
-
 			new_img->get_mipmap_offset_size_and_dimensions(i, ofs, size, w, h);
 			Javelin::PvrTcEncoder::EncodeRgba4Bpp(&wr[ofs], bm);
 		}
diff --git a/modules/recast/SCsub b/modules/recast/SCsub
index 4a06653968..94d9968164 100644
--- a/modules/recast/SCsub
+++ b/modules/recast/SCsub
@@ -23,7 +23,7 @@ if env['builtin_recast']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_recast.Append(CPPPATH=[thirdparty_dir + "/Include"])
+    env_recast.Prepend(CPPPATH=[thirdparty_dir + "/Include"])
 
     env_thirdparty = env_recast.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/recast/navigation_mesh_editor_plugin.cpp b/modules/recast/navigation_mesh_editor_plugin.cpp
index a068f3b0f9..62108620bd 100644
--- a/modules/recast/navigation_mesh_editor_plugin.cpp
+++ b/modules/recast/navigation_mesh_editor_plugin.cpp
@@ -67,9 +67,7 @@ void NavigationMeshEditor::_bake_pressed() {
 	NavigationMeshGenerator::clear(node->get_navigation_mesh());
 	NavigationMeshGenerator::bake(node->get_navigation_mesh(), node);
 
-	if (node) {
-		node->update_gizmo();
-	}
+	node->update_gizmo();
 }
 
 void NavigationMeshEditor::_clear_pressed() {
diff --git a/modules/recast/navigation_mesh_generator.cpp b/modules/recast/navigation_mesh_generator.cpp
index 80e98a13a5..79ccbbb030 100644
--- a/modules/recast/navigation_mesh_generator.cpp
+++ b/modules/recast/navigation_mesh_generator.cpp
@@ -126,9 +126,10 @@ void NavigationMeshGenerator::_convert_detail_mesh_to_native_navigation_mesh(con
 		for (unsigned int j = 0; j < ntris; j++) {
 			Vector<int> nav_indices;
 			nav_indices.resize(3);
+			// Polygon order in recast is opposite than godot's
 			nav_indices.write[0] = ((int)(bverts + tris[j * 4 + 0]));
-			nav_indices.write[1] = ((int)(bverts + tris[j * 4 + 1]));
-			nav_indices.write[2] = ((int)(bverts + tris[j * 4 + 2]));
+			nav_indices.write[1] = ((int)(bverts + tris[j * 4 + 2]));
+			nav_indices.write[2] = ((int)(bverts + tris[j * 4 + 1]));
 			p_nav_mesh->add_polygon(nav_indices);
 		}
 	}
diff --git a/modules/regex/SCsub b/modules/regex/SCsub
index 99c25add45..65f354ffa7 100644
--- a/modules/regex/SCsub
+++ b/modules/regex/SCsub
@@ -46,7 +46,7 @@ if env['builtin_pcre2']:
 
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_regex.Append(CPPPATH=[thirdparty_dir])
+    env_regex.Prepend(CPPPATH=[thirdparty_dir])
     env_regex.Append(CPPFLAGS=thirdparty_flags)
 
     def pcre2_builtin(width):
diff --git a/modules/regex/doc_classes/RegEx.xml b/modules/regex/doc_classes/RegEx.xml
index 75e8903ff8..cc8205e400 100644
--- a/modules/regex/doc_classes/RegEx.xml
+++ b/modules/regex/doc_classes/RegEx.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RegEx" inherits="Reference" category="Core" version="3.1">
+<class name="RegEx" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Class for searching text for patterns using regular expressions.
 	</brief_description>
@@ -38,8 +38,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="clear">
 			<return type="void">
@@ -125,7 +123,7 @@
 			<argument index="4" name="end" type="int" default="-1">
 			</argument>
 			<description>
-				Searches the text for the compiled pattern and replaces it with the specified string. Escapes and backreferences such as [code]\1[/code] and [code]\g&lt;name&gt;[/code] expanded and resolved. By default only the first instance is replaced but it can be changed for all instances (global replacement). The region to search within can be specified without modifying where the start and end anchor would be.
+				Searches the text for the compiled pattern and replaces it with the specified string. Escapes and backreferences such as [code]$1[/code] and [code]$name[/code] are expanded and resolved. By default only the first instance is replaced but it can be changed for all instances (global replacement). The region to search within can be specified without modifying where the start and end anchor would be.
 			</description>
 		</method>
 	</methods>
diff --git a/modules/regex/doc_classes/RegExMatch.xml b/modules/regex/doc_classes/RegExMatch.xml
index 3d070d2786..245201006d 100644
--- a/modules/regex/doc_classes/RegExMatch.xml
+++ b/modules/regex/doc_classes/RegExMatch.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="RegExMatch" inherits="Reference" category="Core" version="3.1">
+<class name="RegExMatch" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		Contains the results of a regex search.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_end" qualifiers="const">
 			<return type="int">
diff --git a/modules/squish/SCsub b/modules/squish/SCsub
index 3be85a1efa..15320bcd0c 100644
--- a/modules/squish/SCsub
+++ b/modules/squish/SCsub
@@ -22,7 +22,7 @@ if env['builtin_squish']:
 
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_squish.Append(CPPPATH=[thirdparty_dir])
+    env_squish.Prepend(CPPPATH=[thirdparty_dir])
 
     env_thirdparty = env_squish.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/squish/image_compress_squish.cpp b/modules/squish/image_compress_squish.cpp
index d89839f06a..4f38357aa1 100644
--- a/modules/squish/image_compress_squish.cpp
+++ b/modules/squish/image_compress_squish.cpp
@@ -119,7 +119,8 @@ void image_compress_squish(Image *p_image, float p_lossy_quality, Image::Compres
 				case Image::FORMAT_RGBA5551: {
 					dc = Image::DETECTED_RGBA;
 				} break;
-				default: {}
+				default: {
+				}
 			}
 		}
 
diff --git a/modules/stb_vorbis/doc_classes/AudioStreamOGGVorbis.xml b/modules/stb_vorbis/doc_classes/AudioStreamOGGVorbis.xml
index e2281babf7..388c5e81ed 100644
--- a/modules/stb_vorbis/doc_classes/AudioStreamOGGVorbis.xml
+++ b/modules/stb_vorbis/doc_classes/AudioStreamOGGVorbis.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="AudioStreamOGGVorbis" inherits="AudioStream" category="Core" version="3.1">
+<class name="AudioStreamOGGVorbis" inherits="AudioStream" category="Core" version="3.2">
 	<brief_description>
 		OGG Vorbis audio stream driver.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/stb_vorbis/doc_classes/ResourceImporterOGGVorbis.xml b/modules/stb_vorbis/doc_classes/ResourceImporterOGGVorbis.xml
index 018f4734ec..4dd77fed34 100644
--- a/modules/stb_vorbis/doc_classes/ResourceImporterOGGVorbis.xml
+++ b/modules/stb_vorbis/doc_classes/ResourceImporterOGGVorbis.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="ResourceImporterOGGVorbis" inherits="ResourceImporter" category="Core" version="3.1">
+<class name="ResourceImporterOGGVorbis" inherits="ResourceImporter" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/svg/SCsub b/modules/svg/SCsub
index 22f0b1e3eb..90bfe22abb 100644
--- a/modules/svg/SCsub
+++ b/modules/svg/SCsub
@@ -12,11 +12,11 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_svg.Append(CPPPATH=[thirdparty_dir])
+env_svg.Prepend(CPPPATH=[thirdparty_dir])
 # FIXME: Needed in editor/editor_themes.cpp for now, but ideally there
 # shouldn't be a dependency on modules/ and its own 3rd party deps.
-env.Append(CPPPATH=[thirdparty_dir])
-env.Append(CCFLAGS=["-DSVG_ENABLED"])
+env.Prepend(CPPPATH=[thirdparty_dir])
+env.Append(CPPFLAGS=["-DSVG_ENABLED"])
 
 env_thirdparty = env_svg.Clone()
 env_thirdparty.disable_warnings()
diff --git a/modules/tga/image_loader_tga.cpp b/modules/tga/image_loader_tga.cpp
index 419229677b..a3c0f5ded7 100644
--- a/modules/tga/image_loader_tga.cpp
+++ b/modules/tga/image_loader_tga.cpp
@@ -148,9 +148,11 @@ Error ImageLoaderTGA::convert_to_image(Ref<Image> p_image, const uint8_t *p_buff
 					uint8_t a = 0xff;
 
 					if (p_header.color_map_depth == 24) {
-						r = (p_palette[(index * 3) + 0]);
+						// Due to low-high byte order, the color table must be
+						// read in the same order as image data (little endian)
+						r = (p_palette[(index * 3) + 2]);
 						g = (p_palette[(index * 3) + 1]);
-						b = (p_palette[(index * 3) + 2]);
+						b = (p_palette[(index * 3) + 0]);
 					} else {
 						return ERR_INVALID_DATA;
 					}
diff --git a/modules/thekla_unwrap/SCsub b/modules/thekla_unwrap/SCsub
deleted file mode 100644
index c47c760d5f..0000000000
--- a/modules/thekla_unwrap/SCsub
+++ /dev/null
@@ -1,85 +0,0 @@
-#!/usr/bin/env python
-
-import platform
-
-Import('env')
-Import('env_modules')
-
-env_thekla_unwrap = env_modules.Clone()
-
-# Thirdparty source files
-if env['builtin_thekla_atlas']:
-    thirdparty_dir = "#thirdparty/thekla_atlas/"
-    thirdparty_sources = [
-        "nvcore/Memory.cpp",
-        "nvcore/Debug.cpp",
-        "nvcore/StrLib.cpp",
-        "nvcore/FileSystem.cpp",
-        "nvcore/RadixSort.cpp",
-        "nvmath/Basis.cpp",
-        "nvmath/ConvexHull.cpp",
-        "nvmath/Fitting.cpp",
-        "nvmath/Plane.cpp",
-        "nvmath/ProximityGrid.cpp",
-        "nvmath/Random.cpp",
-        "nvmath/Solver.cpp",
-        "nvmath/Sparse.cpp",
-        "nvmath/TypeSerialization.cpp",
-        "poshlib/posh.c",
-        "nvimage/BitMap.cpp",
-        "nvimage/Image.cpp",
-        "nvmesh/BaseMesh.cpp",
-        "nvmesh/MeshBuilder.cpp",
-        "nvmesh/TriMesh.cpp",
-        "nvmesh/QuadTriMesh.cpp",
-        "nvmesh/MeshTopology.cpp",
-        "nvmesh/halfedge/Edge.cpp",
-        "nvmesh/halfedge/Mesh.cpp",
-        "nvmesh/halfedge/Face.cpp",
-        "nvmesh/halfedge/Vertex.cpp",
-        "nvmesh/geometry/Bounds.cpp",
-        "nvmesh/geometry/Measurements.cpp",
-        "nvmesh/raster/Raster.cpp",
-        "nvmesh/param/Atlas.cpp",
-        "nvmesh/param/AtlasBuilder.cpp",
-        "nvmesh/param/AtlasPacker.cpp",
-        "nvmesh/param/LeastSquaresConformalMap.cpp",
-        "nvmesh/param/OrthogonalProjectionMap.cpp",
-        "nvmesh/param/ParameterizationQuality.cpp",
-        "nvmesh/param/SingleFaceMap.cpp",
-        "nvmesh/param/Util.cpp",
-        "nvmesh/weld/VertexWeld.cpp",
-        "nvmesh/weld/Snap.cpp",
-        "thekla/thekla_atlas.cpp"
-    ]
-    thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
-
-    env_thekla_unwrap.Append(CPPPATH=[thirdparty_dir, thirdparty_dir + "poshlib", thirdparty_dir + "nvcore", thirdparty_dir + "nvmesh"])
-
-    # upstream uses c++11
-    if (not env.msvc):
-        env_thekla_unwrap.Append(CXXFLAGS="-std=c++11")
-
-    if env["platform"] == 'x11':
-        # if not specifically one of the *BSD, then use LINUX as default
-        if platform.system() == "FreeBSD":
-            env_thekla_unwrap.Append(CCFLAGS=["-DNV_OS_FREEBSD", "-DPOSH_COMPILER_GCC"])
-        elif platform.system() == "OpenBSD":
-            env_thekla_unwrap.Append(CCFLAGS=["-DNV_OS_OPENBSD", "-DPOSH_COMPILER_GCC"])
-        else:
-            env_thekla_unwrap.Append(CCFLAGS=["-DNV_OS_LINUX", "-DPOSH_COMPILER_GCC"])
-    elif env["platform"] == 'osx':
-        env_thekla_unwrap.Append(CCFLAGS=["-DNV_OS_DARWIN", "-DPOSH_COMPILER_GCC"])
-    elif env["platform"] == 'windows':
-        if env.msvc:
-            env_thekla_unwrap.Append(CCFLAGS=["-DNV_OS_WIN32", "-DNV_CC_MSVC", "-DPOSH_COMPILER_MSVC" ])
-        else:
-            env_thekla_unwrap.Append(CCFLAGS=["-DNV_OS_MINGW", "-DNV_CC_GNUC", "-DPOSH_COMPILER_GCC", "-U__STRICT_ANSI__"])
-            env.Append(LIBS=["dbghelp"])
-
-    env_thirdparty = env_thekla_unwrap.Clone()
-    env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
-
-# Godot source files
-env_thekla_unwrap.add_source_files(env.modules_sources, "*.cpp")
diff --git a/modules/thekla_unwrap/config.py b/modules/thekla_unwrap/config.py
deleted file mode 100644
index fad6095064..0000000000
--- a/modules/thekla_unwrap/config.py
+++ /dev/null
@@ -1,6 +0,0 @@
-def can_build(env, platform):
-    #return (env['tools'] and platform not in ["android", "ios"])
-    return False
-
-def configure(env):
-    pass
diff --git a/modules/thekla_unwrap/register_types.cpp b/modules/thekla_unwrap/register_types.cpp
deleted file mode 100644
index 2c35adfb83..0000000000
--- a/modules/thekla_unwrap/register_types.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-/*************************************************************************/
-/*  register_types.cpp                                                   */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "register_types.h"
-#include "core/error_macros.h"
-#include "thirdparty/thekla_atlas/thekla/thekla_atlas.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-extern bool (*array_mesh_lightmap_unwrap_callback)(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, const int *p_face_materials, int p_index_count, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y);
-
-bool thekla_mesh_lightmap_unwrap_callback(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, const int *p_face_materials, int p_index_count, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y) {
-
-	//set up input mesh
-	Thekla::Atlas_Input_Mesh input_mesh;
-	input_mesh.face_array = new Thekla::Atlas_Input_Face[p_index_count / 3];
-	for (int i = 0; i < p_index_count / 3; i++) {
-		input_mesh.face_array[i].vertex_index[0] = p_indices[i * 3 + 0];
-		input_mesh.face_array[i].vertex_index[1] = p_indices[i * 3 + 1];
-		input_mesh.face_array[i].vertex_index[2] = p_indices[i * 3 + 2];
-		//printf("face %i - %i, %i, %i - mat %i\n", i, input_mesh.face_array[i].vertex_index[0], input_mesh.face_array[i].vertex_index[1], input_mesh.face_array[i].vertex_index[2], p_face_materials[i]);
-		input_mesh.face_array[i].material_index = p_face_materials[i];
-	}
-	input_mesh.vertex_array = new Thekla::Atlas_Input_Vertex[p_vertex_count];
-	for (int i = 0; i < p_vertex_count; i++) {
-		input_mesh.vertex_array[i].first_colocal = i; //wtf
-		for (int j = 0; j < 3; j++) {
-			input_mesh.vertex_array[i].position[j] = p_vertices[i * 3 + j];
-			input_mesh.vertex_array[i].normal[j] = p_normals[i * 3 + j];
-		}
-		input_mesh.vertex_array[i].uv[0] = 0;
-		input_mesh.vertex_array[i].uv[1] = 0;
-		//printf("vertex %i - %f, %f, %f\n", i, input_mesh.vertex_array[i].position[0], input_mesh.vertex_array[i].position[1], input_mesh.vertex_array[i].position[2]);
-		//printf("normal %i - %f, %f, %f\n", i, input_mesh.vertex_array[i].normal[0], input_mesh.vertex_array[i].normal[1], input_mesh.vertex_array[i].normal[2]);
-	}
-	input_mesh.face_count = p_index_count / 3;
-	input_mesh.vertex_count = p_vertex_count;
-
-	//set up options
-	Thekla::Atlas_Options options;
-	Thekla::atlas_set_default_options(&options);
-	options.packer_options.witness.packing_quality = 1;
-	options.packer_options.witness.texel_area = 1.0 / p_texel_size;
-	options.packer_options.witness.conservative = false;
-
-	//generate
-	Thekla::Atlas_Error err;
-	Thekla::Atlas_Output_Mesh *output = atlas_generate(&input_mesh, &options, &err);
-
-	delete[] input_mesh.face_array;
-	delete[] input_mesh.vertex_array;
-
-	if (output == NULL) {
-		ERR_PRINT("could not generate atlas output mesh");
-		return false;
-	}
-
-	if (err != Thekla::Atlas_Error_Success) {
-		printf("error with atlas\n");
-	} else {
-		*r_vertex = (int *)malloc(sizeof(int) * output->vertex_count);
-		*r_uv = (float *)malloc(sizeof(float) * output->vertex_count * 3);
-		*r_index = (int *)malloc(sizeof(int) * output->index_count);
-
-		//		printf("w: %i, h: %i\n", output->atlas_width, output->atlas_height);
-		for (int i = 0; i < output->vertex_count; i++) {
-			(*r_vertex)[i] = output->vertex_array[i].xref;
-			(*r_uv)[i * 2 + 0] = output->vertex_array[i].uv[0] / output->atlas_width;
-			(*r_uv)[i * 2 + 1] = output->vertex_array[i].uv[1] / output->atlas_height;
-			//			printf("uv: %f,%f\n", (*r_uv)[i * 2 + 0], (*r_uv)[i * 2 + 1]);
-		}
-		*r_vertex_count = output->vertex_count;
-
-		for (int i = 0; i < output->index_count; i++) {
-			(*r_index)[i] = output->index_array[i];
-		}
-
-		*r_index_count = output->index_count;
-
-		*r_size_hint_x = output->atlas_height;
-		*r_size_hint_y = output->atlas_width;
-	}
-
-	if (output) {
-		atlas_free(output);
-	}
-
-	return err == Thekla::Atlas_Error_Success;
-}
-
-void register_thekla_unwrap_types() {
-
-	array_mesh_lightmap_unwrap_callback = thekla_mesh_lightmap_unwrap_callback;
-}
-
-void unregister_thekla_unwrap_types() {
-}
diff --git a/modules/theora/SCsub b/modules/theora/SCsub
index 98c4274a7e..785eca4c41 100644
--- a/modules/theora/SCsub
+++ b/modules/theora/SCsub
@@ -66,17 +66,17 @@ if env['builtin_libtheora']:
         thirdparty_sources += thirdparty_sources_x86_vc
 
     if (env["x86_libtheora_opt_gcc"] or env["x86_libtheora_opt_vc"]):
-        env_theora.Append(CCFLAGS=["-DOC_X86_ASM"])
+        env_theora.Append(CPPFLAGS=["-DOC_X86_ASM"])
 
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_theora.Append(CPPPATH=[thirdparty_dir])
+    env_theora.Prepend(CPPPATH=[thirdparty_dir])
 
     # also requires libogg and libvorbis
     if env['builtin_libogg']:
-        env_theora.Append(CPPPATH=["#thirdparty/libogg"])
+        env_theora.Prepend(CPPPATH=["#thirdparty/libogg"])
     if env['builtin_libvorbis']:
-        env_theora.Append(CPPPATH=["#thirdparty/libvorbis"])
+        env_theora.Prepend(CPPPATH=["#thirdparty/libvorbis"])
 
     env_thirdparty = env_theora.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/theora/doc_classes/VideoStreamTheora.xml b/modules/theora/doc_classes/VideoStreamTheora.xml
index e7c4727332..696101e252 100644
--- a/modules/theora/doc_classes/VideoStreamTheora.xml
+++ b/modules/theora/doc_classes/VideoStreamTheora.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VideoStreamTheora" inherits="VideoStream" category="Core" version="3.1">
+<class name="VideoStreamTheora" inherits="VideoStream" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_file">
 			<return type="String">
diff --git a/modules/theora/video_stream_theora.cpp b/modules/theora/video_stream_theora.cpp
index 14c5ddd7f2..ae542713ea 100644
--- a/modules/theora/video_stream_theora.cpp
+++ b/modules/theora/video_stream_theora.cpp
@@ -94,15 +94,15 @@ void VideoStreamPlaybackTheora::video_write(void) {
 
 		if (px_fmt == TH_PF_444) {
 
-			yuv444_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2, 0);
+			yuv444_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2);
 
 		} else if (px_fmt == TH_PF_422) {
 
-			yuv422_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2, 0);
+			yuv422_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2);
 
 		} else if (px_fmt == TH_PF_420) {
 
-			yuv420_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[2].data, (uint8_t *)yuv[1].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2, 0);
+			yuv420_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data, (uint8_t *)yuv[1].data, (uint8_t *)yuv[2].data, size.x, size.y, yuv[0].stride, yuv[1].stride, size.x << 2);
 		};
 
 		format = Image::FORMAT_RGBA8;
@@ -365,7 +365,7 @@ void VideoStreamPlaybackTheora::set_file(const String &p_file) {
 
 float VideoStreamPlaybackTheora::get_time() const {
 
-	return time - AudioServer::get_singleton()->get_output_delay() - delay_compensation; //-((get_total())/(float)vi.rate);
+	return time - AudioServer::get_singleton()->get_output_latency() - delay_compensation; //-((get_total())/(float)vi.rate);
 };
 
 Ref<Texture> VideoStreamPlaybackTheora::get_texture() {
diff --git a/modules/tinyexr/SCsub b/modules/tinyexr/SCsub
index 3e7bda2bca..97f9797b58 100644
--- a/modules/tinyexr/SCsub
+++ b/modules/tinyexr/SCsub
@@ -13,7 +13,7 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_tinyexr.Append(CPPPATH=[thirdparty_dir])
+env_tinyexr.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_tinyexr.Clone()
 env_thirdparty.disable_warnings()
diff --git a/modules/tinyexr/image_loader_tinyexr.cpp b/modules/tinyexr/image_loader_tinyexr.cpp
index e69d9a0ae3..bd84a28c84 100644
--- a/modules/tinyexr/image_loader_tinyexr.cpp
+++ b/modules/tinyexr/image_loader_tinyexr.cpp
@@ -107,22 +107,31 @@ Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, FileAccess *f, bool p_f
 		}
 	}
 
-	if (idxR == -1) {
-		ERR_PRINT("TinyEXR: R channel not found.");
-		// @todo { free exr_image }
-		return ERR_FILE_CORRUPT;
-	}
+	if (exr_header.num_channels == 1) {
+		// Grayscale channel only.
+		idxR = 0;
+		idxG = 0;
+		idxB = 0;
+		idxA = 0;
+	} else {
+		// Assume RGB(A)
+		if (idxR == -1) {
+			ERR_PRINT("TinyEXR: R channel not found.");
+			// @todo { free exr_image }
+			return ERR_FILE_CORRUPT;
+		}
 
-	if (idxG == -1) {
-		ERR_PRINT("TinyEXR: G channel not found.")
-		// @todo { free exr_image }
-		return ERR_FILE_CORRUPT;
-	}
+		if (idxG == -1) {
+			ERR_PRINT("TinyEXR: G channel not found.")
+			// @todo { free exr_image }
+			return ERR_FILE_CORRUPT;
+		}
 
-	if (idxB == -1) {
-		ERR_PRINT("TinyEXR: B channel not found.")
-		// @todo { free exr_image }
-		return ERR_FILE_CORRUPT;
+		if (idxB == -1) {
+			ERR_PRINT("TinyEXR: B channel not found.")
+			// @todo { free exr_image }
+			return ERR_FILE_CORRUPT;
+		}
 	}
 
 	// EXR image data loaded, now parse it into Godot-friendly image data
diff --git a/modules/upnp/SCsub b/modules/upnp/SCsub
index 2b15f7aee2..6d669ab73b 100644
--- a/modules/upnp/SCsub
+++ b/modules/upnp/SCsub
@@ -25,7 +25,7 @@ if env['builtin_miniupnpc']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_upnp.Append(CPPPATH=[thirdparty_dir])
+    env_upnp.Prepend(CPPPATH=[thirdparty_dir])
     env_upnp.Append(CPPFLAGS=["-DMINIUPNP_STATICLIB"])
 
     env_thirdparty = env_upnp.Clone()
diff --git a/modules/upnp/doc_classes/UPNP.xml b/modules/upnp/doc_classes/UPNP.xml
index b98327c60d..0516ea9d54 100644
--- a/modules/upnp/doc_classes/UPNP.xml
+++ b/modules/upnp/doc_classes/UPNP.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="UPNP" inherits="Reference" category="Core" version="3.1">
+<class name="UPNP" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		UPNP network functions.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_device">
 			<return type="void">
diff --git a/modules/upnp/doc_classes/UPNPDevice.xml b/modules/upnp/doc_classes/UPNPDevice.xml
index 9de8042daf..1d9a728365 100644
--- a/modules/upnp/doc_classes/UPNPDevice.xml
+++ b/modules/upnp/doc_classes/UPNPDevice.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="UPNPDevice" inherits="Reference" category="Core" version="3.1">
+<class name="UPNPDevice" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 		UPNP device.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_port_mapping" qualifiers="const">
 			<return type="int">
diff --git a/modules/vhacd/SCsub b/modules/vhacd/SCsub
new file mode 100644
index 0000000000..161aed2eb9
--- /dev/null
+++ b/modules/vhacd/SCsub
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+
+Import('env')
+Import('env_modules')
+
+env_vhacd = env_modules.Clone()
+
+# Thirdparty source files
+
+thirdparty_dir = "#thirdparty/vhacd/"
+
+thirdparty_sources = [
+"src/vhacdManifoldMesh.cpp",
+"src/FloatMath.cpp",
+"src/vhacdMesh.cpp",
+"src/vhacdICHull.cpp",
+"src/vhacdVolume.cpp",
+"src/VHACD-ASYNC.cpp",
+"src/btAlignedAllocator.cpp",
+"src/vhacdRaycastMesh.cpp",
+"src/VHACD.cpp",
+"src/btConvexHullComputer.cpp"
+]
+
+thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
+
+env_vhacd.Prepend(CPPPATH=[thirdparty_dir + "/inc"])
+env_vhacd.Append(CPPFLAGS=["-DGODOT_ENET"])
+
+# upstream uses c++11
+if not env.msvc:
+	env_vhacd.Append(CXXFLAGS="-std=c++11")
+
+env_thirdparty = env_vhacd.Clone()
+env_thirdparty.disable_warnings()
+env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+
+env_vhacd.add_source_files(env.modules_sources, "*.cpp")
diff --git a/modules/vhacd/config.py b/modules/vhacd/config.py
new file mode 100644
index 0000000000..9ced70d2fb
--- /dev/null
+++ b/modules/vhacd/config.py
@@ -0,0 +1,6 @@
+def can_build(env, platform):
+    return True
+
+def configure(env):
+    pass
+
diff --git a/modules/vhacd/register_types.cpp b/modules/vhacd/register_types.cpp
new file mode 100644
index 0000000000..076a1738ab
--- /dev/null
+++ b/modules/vhacd/register_types.cpp
@@ -0,0 +1,88 @@
+/*************************************************************************/
+/*  register_types.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "register_types.h"
+#include "scene/resources/mesh.h"
+#include "thirdparty/vhacd/public/VHACD.h"
+
+static Vector<Vector<Face3> > convex_decompose(const Vector<Face3> &p_faces) {
+
+	Vector<float> vertices;
+	vertices.resize(p_faces.size() * 9);
+	Vector<uint32_t> indices;
+	indices.resize(p_faces.size() * 3);
+
+	for (int i = 0; i < p_faces.size(); i++) {
+		for (int j = 0; j < 3; j++) {
+			vertices.write[i * 9 + j * 3 + 0] = p_faces[i].vertex[j].x;
+			vertices.write[i * 9 + j * 3 + 1] = p_faces[i].vertex[j].y;
+			vertices.write[i * 9 + j * 3 + 2] = p_faces[i].vertex[j].z;
+			indices.write[i * 3 + j] = i * 3 + j;
+		}
+	}
+
+	VHACD::IVHACD *decomposer = VHACD::CreateVHACD();
+	VHACD::IVHACD::Parameters params;
+	decomposer->Compute(vertices.ptr(), vertices.size() / 3, indices.ptr(), indices.size() / 3, params);
+
+	int hull_count = decomposer->GetNConvexHulls();
+
+	Vector<Vector<Face3> > ret;
+
+	for (int i = 0; i < hull_count; i++) {
+		Vector<Face3> triangles;
+		VHACD::IVHACD::ConvexHull hull;
+		decomposer->GetConvexHull(i, hull);
+		triangles.resize(hull.m_nTriangles);
+		for (uint32_t j = 0; j < hull.m_nTriangles; j++) {
+			Face3 f;
+			for (int k = 0; k < 3; k++) {
+				for (int l = 0; l < 3; l++) {
+					f.vertex[k][l] = hull.m_points[hull.m_triangles[j * 3 + k] * 3 + l];
+				}
+			}
+			triangles.write[j] = f;
+		}
+		ret.push_back(triangles);
+	}
+
+	decomposer->Clean();
+	decomposer->Release();
+
+	return ret;
+}
+
+void register_vhacd_types() {
+	Mesh::convex_composition_function = convex_decompose;
+}
+
+void unregister_vhacd_types() {
+	Mesh::convex_composition_function = NULL;
+}
diff --git a/drivers/gl_context/context_gl.cpp b/modules/vhacd/register_types.h
index 759ab6f3ec..cb948faf44 100644
--- a/drivers/gl_context/context_gl.cpp
+++ b/modules/vhacd/register_types.h
@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  context_gl.cpp                                                       */
+/*  register_types.h                                                     */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,28 +28,5 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#include "context_gl.h"
-
-#if defined(OPENGL_ENABLED) || defined(GLES_ENABLED)
-
-ContextGL *ContextGL::singleton = NULL;
-
-ContextGL *ContextGL::get_singleton() {
-
-	return singleton;
-}
-
-ContextGL::ContextGL() {
-
-	ERR_FAIL_COND(singleton);
-
-	singleton = this;
-}
-
-ContextGL::~ContextGL() {
-
-	if (singleton == this)
-		singleton = NULL;
-}
-
-#endif
+void register_vhacd_types();
+void unregister_vhacd_types();
diff --git a/modules/visual_script/doc_classes/VisualScript.xml b/modules/visual_script/doc_classes/VisualScript.xml
index 70849c5a80..8f0d881f30 100644
--- a/modules/visual_script/doc_classes/VisualScript.xml
+++ b/modules/visual_script/doc_classes/VisualScript.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScript" inherits="Script" category="Core" version="3.1">
+<class name="VisualScript" inherits="Script" category="Core" version="3.2">
 	<brief_description>
 		A script implemented in the Visual Script programming environment.
 	</brief_description>
@@ -11,8 +11,6 @@
 	<tutorials>
 		<link>https://docs.godotengine.org/en/latest/getting_started/scripting/visual_script/index.html</link>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_custom_signal">
 			<return type="void">
diff --git a/modules/visual_script/doc_classes/VisualScriptBasicTypeConstant.xml b/modules/visual_script/doc_classes/VisualScriptBasicTypeConstant.xml
index 5ec155fbc6..b591dc9a51 100644
--- a/modules/visual_script/doc_classes/VisualScriptBasicTypeConstant.xml
+++ b/modules/visual_script/doc_classes/VisualScriptBasicTypeConstant.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptBasicTypeConstant" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptBasicTypeConstant" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node representing a constant from the base types.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptBuiltinFunc.xml b/modules/visual_script/doc_classes/VisualScriptBuiltinFunc.xml
index 3a1d773058..74d5f29c02 100644
--- a/modules/visual_script/doc_classes/VisualScriptBuiltinFunc.xml
+++ b/modules/visual_script/doc_classes/VisualScriptBuiltinFunc.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptBuiltinFunc" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptBuiltinFunc" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node used to call built-in functions.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
@@ -204,7 +202,14 @@
 		<constant name="COLORN" value="62" enum="BuiltinFunc">
 			Return the [Color] with the given name and alpha ranging from 0 to 1. Note: names are defined in color_names.inc.
 		</constant>
-		<constant name="FUNC_MAX" value="63" enum="BuiltinFunc">
+		<constant name="MATH_SMOOTHSTEP" value="63" enum="BuiltinFunc">
+			Return a number smoothly interpolated between the first two inputs, based on the third input. Similar to [code]MATH_LERP[/code], but interpolates faster at the beginning and slower at the end. Using Hermite interpolation formula:
+			[codeblock]
+			var t = clamp((weight - from) / (to - from), 0.0, 1.0)
+			return t * t * (3.0 - 2.0 * t)
+			[/codeblock]
+		</constant>
+		<constant name="FUNC_MAX" value="64" enum="BuiltinFunc">
 			The maximum value the [member function] property can have.
 		</constant>
 	</constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptClassConstant.xml b/modules/visual_script/doc_classes/VisualScriptClassConstant.xml
index dc9044e9ed..6e48e7c416 100644
--- a/modules/visual_script/doc_classes/VisualScriptClassConstant.xml
+++ b/modules/visual_script/doc_classes/VisualScriptClassConstant.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptClassConstant" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptClassConstant" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Gets a constant from a given class.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptComment.xml b/modules/visual_script/doc_classes/VisualScriptComment.xml
index a4a890ea8a..9652654610 100644
--- a/modules/visual_script/doc_classes/VisualScriptComment.xml
+++ b/modules/visual_script/doc_classes/VisualScriptComment.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptComment" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptComment" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node used to annotate the script.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptCondition.xml b/modules/visual_script/doc_classes/VisualScriptCondition.xml
index a7b1028c0c..12d85429cf 100644
--- a/modules/visual_script/doc_classes/VisualScriptCondition.xml
+++ b/modules/visual_script/doc_classes/VisualScriptCondition.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptCondition" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptCondition" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node which branches the flow.
 	</brief_description>
@@ -15,8 +15,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptConstant.xml b/modules/visual_script/doc_classes/VisualScriptConstant.xml
index ed633c4135..b15af8e4ea 100644
--- a/modules/visual_script/doc_classes/VisualScriptConstant.xml
+++ b/modules/visual_script/doc_classes/VisualScriptConstant.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptConstant" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptConstant" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Gets a contant's value.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptConstructor.xml b/modules/visual_script/doc_classes/VisualScriptConstructor.xml
index 14c44c6970..8da5055d83 100644
--- a/modules/visual_script/doc_classes/VisualScriptConstructor.xml
+++ b/modules/visual_script/doc_classes/VisualScriptConstructor.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptConstructor" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptConstructor" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node which calls a base type constructor.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_constructor" qualifiers="const">
 			<return type="Dictionary">
diff --git a/modules/visual_script/doc_classes/VisualScriptCustomNode.xml b/modules/visual_script/doc_classes/VisualScriptCustomNode.xml
index ff3ed66e81..1ab9f807fb 100644
--- a/modules/visual_script/doc_classes/VisualScriptCustomNode.xml
+++ b/modules/visual_script/doc_classes/VisualScriptCustomNode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptCustomNode" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptCustomNode" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A scripted Visual Script node.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_get_caption" qualifiers="virtual">
 			<return type="String">
@@ -145,7 +143,7 @@
 		</constant>
 		<constant name="STEP_PUSH_STACK_BIT" value="16777216">
 			Hint used by [method _step] to tell that control should return to it when there is no other node left to execute.
-			This is used by [VisualScriptCondition] to redirect the sequence to the "Done" port after the true/false branch has finished execution.
+			This is used by [VisualScriptCondition] to redirect the sequence to the "Done" port after the [code]true[/code]/[code]false[/code] branch has finished execution.
 		</constant>
 		<constant name="STEP_GO_BACK_BIT" value="33554432">
 			Hint used by [method _step] to tell that control should return back, either hitting a previous STEP_PUSH_STACK_BIT or exiting the function.
diff --git a/modules/visual_script/doc_classes/VisualScriptDeconstruct.xml b/modules/visual_script/doc_classes/VisualScriptDeconstruct.xml
index d3158df357..a0eed5b753 100644
--- a/modules/visual_script/doc_classes/VisualScriptDeconstruct.xml
+++ b/modules/visual_script/doc_classes/VisualScriptDeconstruct.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptDeconstruct" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptDeconstruct" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node which deconstructs a base type instance into its parts.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptEditor.xml b/modules/visual_script/doc_classes/VisualScriptEditor.xml
index fc49cfc07b..add2eb2275 100644
--- a/modules/visual_script/doc_classes/VisualScriptEditor.xml
+++ b/modules/visual_script/doc_classes/VisualScriptEditor.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptEditor" inherits="Object" category="Core" version="3.1">
+<class name="VisualScriptEditor" inherits="Object" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="add_custom_node">
 			<return type="void">
diff --git a/modules/visual_script/doc_classes/VisualScriptEmitSignal.xml b/modules/visual_script/doc_classes/VisualScriptEmitSignal.xml
index 4bb05525bd..623aa1ba86 100644
--- a/modules/visual_script/doc_classes/VisualScriptEmitSignal.xml
+++ b/modules/visual_script/doc_classes/VisualScriptEmitSignal.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptEmitSignal" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptEmitSignal" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Emits a specified signal.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptEngineSingleton.xml b/modules/visual_script/doc_classes/VisualScriptEngineSingleton.xml
index 93d7ce3516..525389366a 100644
--- a/modules/visual_script/doc_classes/VisualScriptEngineSingleton.xml
+++ b/modules/visual_script/doc_classes/VisualScriptEngineSingleton.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptEngineSingleton" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptEngineSingleton" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		A Visual Script node returning a singleton from [@GlobalScope]
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptExpression.xml b/modules/visual_script/doc_classes/VisualScriptExpression.xml
index 343e83cb55..eb6cdbb302 100644
--- a/modules/visual_script/doc_classes/VisualScriptExpression.xml
+++ b/modules/visual_script/doc_classes/VisualScriptExpression.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptExpression" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptExpression" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptFunction.xml b/modules/visual_script/doc_classes/VisualScriptFunction.xml
index ec8e955cf7..152b48ca89 100644
--- a/modules/visual_script/doc_classes/VisualScriptFunction.xml
+++ b/modules/visual_script/doc_classes/VisualScriptFunction.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptFunction" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptFunction" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptFunctionCall.xml b/modules/visual_script/doc_classes/VisualScriptFunctionCall.xml
index f6116cf539..e4d0bb7672 100644
--- a/modules/visual_script/doc_classes/VisualScriptFunctionCall.xml
+++ b/modules/visual_script/doc_classes/VisualScriptFunctionCall.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptFunctionCall" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptFunctionCall" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptFunctionState.xml b/modules/visual_script/doc_classes/VisualScriptFunctionState.xml
index c75dd0cdbc..a8e820e6ea 100644
--- a/modules/visual_script/doc_classes/VisualScriptFunctionState.xml
+++ b/modules/visual_script/doc_classes/VisualScriptFunctionState.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptFunctionState" inherits="Reference" category="Core" version="3.1">
+<class name="VisualScriptFunctionState" inherits="Reference" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="connect_to_signal">
 			<return type="void">
diff --git a/modules/visual_script/doc_classes/VisualScriptGlobalConstant.xml b/modules/visual_script/doc_classes/VisualScriptGlobalConstant.xml
index 9d43204f02..4099a351e6 100644
--- a/modules/visual_script/doc_classes/VisualScriptGlobalConstant.xml
+++ b/modules/visual_script/doc_classes/VisualScriptGlobalConstant.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptGlobalConstant" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptGlobalConstant" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptIndexGet.xml b/modules/visual_script/doc_classes/VisualScriptIndexGet.xml
index 73c1f47e1a..ba0dc1a3d0 100644
--- a/modules/visual_script/doc_classes/VisualScriptIndexGet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptIndexGet.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptIndexGet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptIndexGet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptIndexSet.xml b/modules/visual_script/doc_classes/VisualScriptIndexSet.xml
index 652c29a9ac..09a8f2c8ad 100644
--- a/modules/visual_script/doc_classes/VisualScriptIndexSet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptIndexSet.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptIndexSet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptIndexSet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptInputAction.xml b/modules/visual_script/doc_classes/VisualScriptInputAction.xml
index ab4c23012b..4bd1430cf6 100644
--- a/modules/visual_script/doc_classes/VisualScriptInputAction.xml
+++ b/modules/visual_script/doc_classes/VisualScriptInputAction.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptInputAction" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptInputAction" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptIterator.xml b/modules/visual_script/doc_classes/VisualScriptIterator.xml
index 7090621bd7..782bbfae20 100644
--- a/modules/visual_script/doc_classes/VisualScriptIterator.xml
+++ b/modules/visual_script/doc_classes/VisualScriptIterator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptIterator" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptIterator" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Steps through items in a given input.
 	</brief_description>
@@ -15,8 +15,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptLocalVar.xml b/modules/visual_script/doc_classes/VisualScriptLocalVar.xml
index 5c8ee6453c..5d061ea79f 100644
--- a/modules/visual_script/doc_classes/VisualScriptLocalVar.xml
+++ b/modules/visual_script/doc_classes/VisualScriptLocalVar.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptLocalVar" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptLocalVar" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Gets a local variable's value.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptLocalVarSet.xml b/modules/visual_script/doc_classes/VisualScriptLocalVarSet.xml
index f2e6c48907..049195d890 100644
--- a/modules/visual_script/doc_classes/VisualScriptLocalVarSet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptLocalVarSet.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptLocalVarSet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptLocalVarSet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Changes a local variable's value.
 	</brief_description>
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptMathConstant.xml b/modules/visual_script/doc_classes/VisualScriptMathConstant.xml
index d456e880b7..430f9ee7d4 100644
--- a/modules/visual_script/doc_classes/VisualScriptMathConstant.xml
+++ b/modules/visual_script/doc_classes/VisualScriptMathConstant.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptMathConstant" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptMathConstant" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Commonly used mathematical constants.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptNode.xml b/modules/visual_script/doc_classes/VisualScriptNode.xml
index 941a0cd91a..89fb5c81f8 100644
--- a/modules/visual_script/doc_classes/VisualScriptNode.xml
+++ b/modules/visual_script/doc_classes/VisualScriptNode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptNode" inherits="Resource" category="Core" version="3.1">
+<class name="VisualScriptNode" inherits="Resource" category="Core" version="3.2">
 	<brief_description>
 		A node which is part of a [VisualScript].
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_default_input_value" qualifiers="const">
 			<return type="Variant">
diff --git a/modules/visual_script/doc_classes/VisualScriptOperator.xml b/modules/visual_script/doc_classes/VisualScriptOperator.xml
index e60d50c977..a0827972e0 100644
--- a/modules/visual_script/doc_classes/VisualScriptOperator.xml
+++ b/modules/visual_script/doc_classes/VisualScriptOperator.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptOperator" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptOperator" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
@@ -11,8 +11,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptPreload.xml b/modules/visual_script/doc_classes/VisualScriptPreload.xml
index 5a2886ccac..b3b39691c9 100644
--- a/modules/visual_script/doc_classes/VisualScriptPreload.xml
+++ b/modules/visual_script/doc_classes/VisualScriptPreload.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptPreload" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptPreload" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Creates a new [Resource] or loads one from the filesystem.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptPropertyGet.xml b/modules/visual_script/doc_classes/VisualScriptPropertyGet.xml
index 60cc8fdd4f..697a31ca46 100644
--- a/modules/visual_script/doc_classes/VisualScriptPropertyGet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptPropertyGet.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptPropertyGet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptPropertyGet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptPropertySet.xml b/modules/visual_script/doc_classes/VisualScriptPropertySet.xml
index 8f29e9d152..c41e3781d4 100644
--- a/modules/visual_script/doc_classes/VisualScriptPropertySet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptPropertySet.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptPropertySet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptPropertySet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptResourcePath.xml b/modules/visual_script/doc_classes/VisualScriptResourcePath.xml
index f6300e03f0..40862b810b 100644
--- a/modules/visual_script/doc_classes/VisualScriptResourcePath.xml
+++ b/modules/visual_script/doc_classes/VisualScriptResourcePath.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptResourcePath" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptResourcePath" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptReturn.xml b/modules/visual_script/doc_classes/VisualScriptReturn.xml
index 0ca3e3b612..40c8963efe 100644
--- a/modules/visual_script/doc_classes/VisualScriptReturn.xml
+++ b/modules/visual_script/doc_classes/VisualScriptReturn.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptReturn" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptReturn" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Exits a function and returns an optional value.
 	</brief_description>
@@ -13,8 +13,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptSceneNode.xml b/modules/visual_script/doc_classes/VisualScriptSceneNode.xml
index 7704eaba04..81ef4ceedc 100644
--- a/modules/visual_script/doc_classes/VisualScriptSceneNode.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSceneNode.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSceneNode" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSceneNode" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Node reference.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptSceneTree.xml b/modules/visual_script/doc_classes/VisualScriptSceneTree.xml
index 2c2af9262d..84718ba119 100644
--- a/modules/visual_script/doc_classes/VisualScriptSceneTree.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSceneTree.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSceneTree" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSceneTree" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptSelect.xml b/modules/visual_script/doc_classes/VisualScriptSelect.xml
index 0731fc77e1..3b1e7f7f02 100644
--- a/modules/visual_script/doc_classes/VisualScriptSelect.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSelect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSelect" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSelect" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Chooses between two input values.
 	</brief_description>
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptSelf.xml b/modules/visual_script/doc_classes/VisualScriptSelf.xml
index 61a73e104c..231e7d8f0d 100644
--- a/modules/visual_script/doc_classes/VisualScriptSelf.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSelf.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSelf" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSelf" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Outputs a reference to the current instance.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptSequence.xml b/modules/visual_script/doc_classes/VisualScriptSequence.xml
index c71e068045..26af15b404 100644
--- a/modules/visual_script/doc_classes/VisualScriptSequence.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSequence.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSequence" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSequence" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Executes a series of Sequence ports.
 	</brief_description>
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptSubCall.xml b/modules/visual_script/doc_classes/VisualScriptSubCall.xml
index 46aeebab9c..51b0093209 100644
--- a/modules/visual_script/doc_classes/VisualScriptSubCall.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSubCall.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSubCall" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSubCall" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="_subcall" qualifiers="virtual">
 			<return type="Variant">
diff --git a/modules/visual_script/doc_classes/VisualScriptSwitch.xml b/modules/visual_script/doc_classes/VisualScriptSwitch.xml
index a00811a29b..35929b16ac 100644
--- a/modules/visual_script/doc_classes/VisualScriptSwitch.xml
+++ b/modules/visual_script/doc_classes/VisualScriptSwitch.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptSwitch" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptSwitch" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Branches program flow based on a given input's value.
 	</brief_description>
@@ -17,8 +17,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptTypeCast.xml b/modules/visual_script/doc_classes/VisualScriptTypeCast.xml
index 0bdc4ce89d..a9e920bca6 100644
--- a/modules/visual_script/doc_classes/VisualScriptTypeCast.xml
+++ b/modules/visual_script/doc_classes/VisualScriptTypeCast.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptTypeCast" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptTypeCast" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptVariableGet.xml b/modules/visual_script/doc_classes/VisualScriptVariableGet.xml
index 06178a399d..e1c7c4e4d4 100644
--- a/modules/visual_script/doc_classes/VisualScriptVariableGet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptVariableGet.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptVariableGet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptVariableGet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Gets a variable's value.
 	</brief_description>
@@ -12,8 +12,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptVariableSet.xml b/modules/visual_script/doc_classes/VisualScriptVariableSet.xml
index 5969f25060..7339482908 100644
--- a/modules/visual_script/doc_classes/VisualScriptVariableSet.xml
+++ b/modules/visual_script/doc_classes/VisualScriptVariableSet.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptVariableSet" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptVariableSet" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Changes a variable's value.
 	</brief_description>
@@ -13,8 +13,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptWhile.xml b/modules/visual_script/doc_classes/VisualScriptWhile.xml
index b9e7f6a553..77211fa088 100644
--- a/modules/visual_script/doc_classes/VisualScriptWhile.xml
+++ b/modules/visual_script/doc_classes/VisualScriptWhile.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptWhile" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptWhile" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 		Conditional loop.
 	</brief_description>
@@ -14,8 +14,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<constants>
diff --git a/modules/visual_script/doc_classes/VisualScriptYield.xml b/modules/visual_script/doc_classes/VisualScriptYield.xml
index c4698f746a..9f61a5f88c 100644
--- a/modules/visual_script/doc_classes/VisualScriptYield.xml
+++ b/modules/visual_script/doc_classes/VisualScriptYield.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptYield" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptYield" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/doc_classes/VisualScriptYieldSignal.xml b/modules/visual_script/doc_classes/VisualScriptYieldSignal.xml
index b67e4ab1b8..6791375182 100644
--- a/modules/visual_script/doc_classes/VisualScriptYieldSignal.xml
+++ b/modules/visual_script/doc_classes/VisualScriptYieldSignal.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VisualScriptYieldSignal" inherits="VisualScriptNode" category="Core" version="3.1">
+<class name="VisualScriptYieldSignal" inherits="VisualScriptNode" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 	</methods>
 	<members>
diff --git a/modules/visual_script/visual_script_builtin_funcs.cpp b/modules/visual_script/visual_script_builtin_funcs.cpp
index 9f2d1a49c0..d207656705 100644
--- a/modules/visual_script/visual_script_builtin_funcs.cpp
+++ b/modules/visual_script/visual_script_builtin_funcs.cpp
@@ -102,6 +102,7 @@ const char *VisualScriptBuiltinFunc::func_name[VisualScriptBuiltinFunc::FUNC_MAX
 	"var2bytes",
 	"bytes2var",
 	"color_named",
+	"smoothstep",
 };
 
 VisualScriptBuiltinFunc::BuiltinFunc VisualScriptBuiltinFunc::find_function(const String &p_string) {
@@ -183,10 +184,10 @@ int VisualScriptBuiltinFunc::get_func_argument_count(BuiltinFunc p_func) {
 		case TEXT_PRINTRAW:
 		case VAR_TO_STR:
 		case STR_TO_VAR:
-		case VAR_TO_BYTES:
-		case BYTES_TO_VAR:
 		case TYPE_EXISTS:
 			return 1;
+		case VAR_TO_BYTES:
+		case BYTES_TO_VAR:
 		case MATH_ATAN2:
 		case MATH_FMOD:
 		case MATH_FPOSMOD:
@@ -204,6 +205,7 @@ int VisualScriptBuiltinFunc::get_func_argument_count(BuiltinFunc p_func) {
 			return 2;
 		case MATH_LERP:
 		case MATH_INVERSE_LERP:
+		case MATH_SMOOTHSTEP:
 		case MATH_DECTIME:
 		case MATH_WRAP:
 		case MATH_WRAPF:
@@ -337,6 +339,14 @@ PropertyInfo VisualScriptBuiltinFunc::get_input_value_port_info(int p_idx) const
 			else
 				return PropertyInfo(Variant::REAL, "ostop");
 		} break;
+		case MATH_SMOOTHSTEP: {
+			if (p_idx == 0)
+				return PropertyInfo(Variant::REAL, "from");
+			else if (p_idx == 1)
+				return PropertyInfo(Variant::REAL, "to");
+			else
+				return PropertyInfo(Variant::REAL, "weight");
+		} break;
 		case MATH_DECTIME: {
 			if (p_idx == 0)
 				return PropertyInfo(Variant::REAL, "value");
@@ -491,12 +501,18 @@ PropertyInfo VisualScriptBuiltinFunc::get_input_value_port_info(int p_idx) const
 			return PropertyInfo(Variant::STRING, "string");
 		} break;
 		case VAR_TO_BYTES: {
-			return PropertyInfo(Variant::NIL, "var");
+			if (p_idx == 0)
+				return PropertyInfo(Variant::NIL, "var");
+			else
+				return PropertyInfo(Variant::BOOL, "full_objects");
 
 		} break;
 		case BYTES_TO_VAR: {
 
-			return PropertyInfo(Variant::POOL_BYTE_ARRAY, "bytes");
+			if (p_idx == 0)
+				return PropertyInfo(Variant::POOL_BYTE_ARRAY, "bytes");
+			else
+				return PropertyInfo(Variant::BOOL, "allow_objects");
 		} break;
 		case COLORN: {
 
@@ -563,6 +579,7 @@ PropertyInfo VisualScriptBuiltinFunc::get_output_value_port_info(int p_idx) cons
 		case MATH_LERP:
 		case MATH_INVERSE_LERP:
 		case MATH_RANGE_LERP:
+		case MATH_SMOOTHSTEP:
 		case MATH_DECTIME: {
 			t = Variant::REAL;
 
@@ -655,11 +672,15 @@ PropertyInfo VisualScriptBuiltinFunc::get_output_value_port_info(int p_idx) cons
 
 		} break;
 		case VAR_TO_BYTES: {
-			t = Variant::POOL_BYTE_ARRAY;
+			if (p_idx == 0)
+				t = Variant::POOL_BYTE_ARRAY;
+			else
+				t = Variant::BOOL;
 
 		} break;
 		case BYTES_TO_VAR: {
-
+			if (p_idx == 1)
+				t = Variant::BOOL;
 		} break;
 		case COLORN: {
 			t = Variant::COLOR;
@@ -889,6 +910,12 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
 			VALIDATE_ARG_NUM(4);
 			*r_return = Math::range_lerp((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2], (double)*p_inputs[3], (double)*p_inputs[4]);
 		} break;
+		case VisualScriptBuiltinFunc::MATH_SMOOTHSTEP: {
+			VALIDATE_ARG_NUM(0);
+			VALIDATE_ARG_NUM(1);
+			VALIDATE_ARG_NUM(2);
+			*r_return = Math::smoothstep((double)*p_inputs[0], (double)*p_inputs[1], (double)*p_inputs[2]);
+		} break;
 		case VisualScriptBuiltinFunc::MATH_DECTIME: {
 
 			VALIDATE_ARG_NUM(0);
@@ -1192,9 +1219,16 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
 		} break;
 		case VisualScriptBuiltinFunc::VAR_TO_BYTES: {
 
+			if (p_inputs[1]->get_type() != Variant::BOOL) {
+				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
+				r_error.argument = 1;
+				r_error.expected = Variant::BOOL;
+				return;
+			}
 			PoolByteArray barr;
 			int len;
-			Error err = encode_variant(*p_inputs[0], NULL, len);
+			bool full_objects = *p_inputs[1];
+			Error err = encode_variant(*p_inputs[0], NULL, len, full_objects);
 			if (err) {
 				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
 				r_error.argument = 0;
@@ -1206,7 +1240,7 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
 			barr.resize(len);
 			{
 				PoolByteArray::Write w = barr.write();
-				encode_variant(*p_inputs[0], w.ptr(), len);
+				encode_variant(*p_inputs[0], w.ptr(), len, full_objects);
 			}
 			*r_return = barr;
 		} break;
@@ -1216,15 +1250,21 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
 				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
 				r_error.argument = 0;
 				r_error.expected = Variant::POOL_BYTE_ARRAY;
-
+				return;
+			}
+			if (p_inputs[1]->get_type() != Variant::BOOL) {
+				r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
+				r_error.argument = 1;
+				r_error.expected = Variant::BOOL;
 				return;
 			}
 
 			PoolByteArray varr = *p_inputs[0];
+			bool allow_objects = *p_inputs[1];
 			Variant ret;
 			{
 				PoolByteArray::Read r = varr.read();
-				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL);
+				Error err = decode_variant(ret, r.ptr(), varr.size(), NULL, allow_objects);
 				if (err != OK) {
 					r_error_str = RTR("Not enough bytes for decoding bytes, or invalid format.");
 					r_error.error = Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
@@ -1247,7 +1287,8 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
 			*r_return = String(color);
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1356,6 +1397,7 @@ void VisualScriptBuiltinFunc::_bind_methods() {
 	BIND_ENUM_CONSTANT(VAR_TO_BYTES);
 	BIND_ENUM_CONSTANT(BYTES_TO_VAR);
 	BIND_ENUM_CONSTANT(COLORN);
+	BIND_ENUM_CONSTANT(MATH_SMOOTHSTEP);
 	BIND_ENUM_CONSTANT(FUNC_MAX);
 }
 
@@ -1410,6 +1452,7 @@ void register_visual_script_builtin_func_node() {
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/lerp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_LERP>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/inverse_lerp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_INVERSE_LERP>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/range_lerp", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANGE_LERP>);
+	VisualScriptLanguage::singleton->add_register_func("functions/built_in/smoothstep", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_SMOOTHSTEP>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/dectime", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DECTIME>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/randomize", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RANDOMIZE>);
 	VisualScriptLanguage::singleton->add_register_func("functions/built_in/rand", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RAND>);
diff --git a/modules/visual_script/visual_script_builtin_funcs.h b/modules/visual_script/visual_script_builtin_funcs.h
index 2d8454ddd4..50854c16b1 100644
--- a/modules/visual_script/visual_script_builtin_funcs.h
+++ b/modules/visual_script/visual_script_builtin_funcs.h
@@ -101,6 +101,7 @@ public:
 		VAR_TO_BYTES,
 		BYTES_TO_VAR,
 		COLORN,
+		MATH_SMOOTHSTEP,
 		FUNC_MAX
 	};
 
diff --git a/modules/visual_script/visual_script_editor.cpp b/modules/visual_script/visual_script_editor.cpp
index 7e54891d97..4f6828bf1c 100644
--- a/modules/visual_script/visual_script_editor.cpp
+++ b/modules/visual_script/visual_script_editor.cpp
@@ -37,6 +37,7 @@
 #include "core/variant.h"
 #include "editor/editor_node.h"
 #include "editor/editor_resource_preview.h"
+#include "scene/main/viewport.h"
 #include "visual_script_expression.h"
 #include "visual_script_flow_control.h"
 #include "visual_script_func_nodes.h"
@@ -579,7 +580,7 @@ void VisualScriptEditor::_update_graph(int p_only_id) {
 			if (gnode->is_comment())
 				sbf = EditorNode::get_singleton()->get_theme_base()->get_theme()->get_stylebox("comment", "GraphNode");
 
-			Color c = sbf->get_border_color(MARGIN_TOP);
+			Color c = sbf->get_border_color();
 			c.a = 1;
 			if (EditorSettings::get_singleton()->get("interface/theme/use_graph_node_headers")) {
 				Color mono_color = ((c.r + c.g + c.b) / 3) < 0.7 ? Color(1.0, 1.0, 1.0) : Color(0.0, 0.0, 0.0);
@@ -1329,8 +1330,9 @@ void VisualScriptEditor::_input(const Ref<InputEvent> &p_event) {
 	}
 }
 
-void VisualScriptEditor::_generic_search() {
-	new_connect_node_select->select_from_visual_script(String(""), false);
+void VisualScriptEditor::_generic_search(String p_base_type) {
+	port_action_pos = graph->get_viewport()->get_mouse_position() - graph->get_global_position();
+	new_connect_node_select->select_from_visual_script(p_base_type, false);
 }
 
 void VisualScriptEditor::_members_gui_input(const Ref<InputEvent> &p_event) {
@@ -1785,7 +1787,6 @@ void VisualScriptEditor::drop_data_fw(const Point2 &p_point, const Variant &p_da
 				call->set_base_path(sn->get_path_to(node));
 				call->set_base_type(node->get_class());
 				n = call;
-
 				method_select->select_from_instance(node);
 				selecting_method_id = base_id;
 			}
@@ -2099,6 +2100,14 @@ void VisualScriptEditor::goto_line(int p_line, bool p_with_error) {
 	}
 }
 
+void VisualScriptEditor::set_executing_line(int p_line) {
+	// todo: add a way to show which node is executing right now.
+}
+
+void VisualScriptEditor::clear_executing_line() {
+	// todo: add a way to show which node is executing right now.
+}
+
 void VisualScriptEditor::trim_trailing_whitespace() {
 }
 
@@ -3054,10 +3063,10 @@ void VisualScriptEditor::_notification(int p_what) {
 			Ref<StyleBoxFlat> sb = tm->get_stylebox("frame", "GraphNode");
 			if (!sb.is_null()) {
 				Ref<StyleBoxFlat> frame_style = sb->duplicate();
-				Color c = sb->get_border_color(MARGIN_TOP);
+				Color c = sb->get_border_color();
 				Color cn = E->get().second;
 				cn.a = c.a;
-				frame_style->set_border_color_all(cn);
+				frame_style->set_border_color(cn);
 				node_styles[E->get().first] = frame_style;
 			}
 		}
@@ -3146,7 +3155,7 @@ void VisualScriptEditor::_menu_option(int p_what) {
 
 		} break;
 		case EDIT_FIND_NODE_TYPE: {
-			_generic_search();
+			_generic_search(script->get_instance_base_type());
 		} break;
 		case EDIT_COPY_NODES:
 		case EDIT_CUT_NODES: {
@@ -3564,7 +3573,7 @@ VisualScriptEditor::VisualScriptEditor() {
 	graph->connect("scroll_offset_changed", this, "_graph_ofs_changed");
 
 	select_func_text = memnew(Label);
-	select_func_text->set_text(TTR("Select or create a function to edit graph"));
+	select_func_text->set_text(TTR("Select or create a function to edit its graph."));
 	select_func_text->set_align(Label::ALIGN_CENTER);
 	select_func_text->set_valign(Label::VALIGN_CENTER);
 	select_func_text->set_h_size_flags(SIZE_EXPAND_FILL);
diff --git a/modules/visual_script/visual_script_editor.h b/modules/visual_script/visual_script_editor.h
index f4b4a6981d..3d3a49f672 100644
--- a/modules/visual_script/visual_script_editor.h
+++ b/modules/visual_script/visual_script_editor.h
@@ -212,7 +212,7 @@ class VisualScriptEditor : public ScriptEditorBase {
 
 	void _input(const Ref<InputEvent> &p_event);
 
-	void _generic_search();
+	void _generic_search(String p_base_type = "");
 
 	void _members_gui_input(const Ref<InputEvent> &p_event);
 	void _on_nodes_delete();
@@ -263,6 +263,8 @@ public:
 	virtual Variant get_edit_state();
 	virtual void set_edit_state(const Variant &p_state);
 	virtual void goto_line(int p_line, bool p_with_error = false);
+	virtual void set_executing_line(int p_line);
+	virtual void clear_executing_line();
 	virtual void trim_trailing_whitespace();
 	virtual void convert_indent_to_spaces();
 	virtual void convert_indent_to_tabs();
diff --git a/modules/visual_script/visual_script_expression.cpp b/modules/visual_script/visual_script_expression.cpp
index a76e4bc36f..772092fabe 100644
--- a/modules/visual_script/visual_script_expression.cpp
+++ b/modules/visual_script/visual_script_expression.cpp
@@ -1032,7 +1032,8 @@ VisualScriptExpression::ENode *VisualScriptExpression::_parse_expression() {
 			case TK_OP_BIT_OR: op = Variant::OP_BIT_OR; break;
 			case TK_OP_BIT_XOR: op = Variant::OP_BIT_XOR; break;
 			case TK_OP_BIT_INVERT: op = Variant::OP_BIT_NEGATE; break;
-			default: {};
+			default: {
+			};
 		}
 
 		if (op == Variant::OP_MAX) { //stop appending stuff
diff --git a/modules/visual_script/visual_script_func_nodes.cpp b/modules/visual_script/visual_script_func_nodes.cpp
index bb0435a679..8fa7d2c0d4 100644
--- a/modules/visual_script/visual_script_func_nodes.cpp
+++ b/modules/visual_script/visual_script_func_nodes.cpp
@@ -1562,7 +1562,8 @@ public:
 				case VisualScriptPropertySet::ASSIGN_OP_BIT_XOR: {
 					value = Variant::evaluate(Variant::OP_BIT_XOR, value, p_argument);
 				} break;
-				default: {}
+				default: {
+				}
 			}
 
 			if (index != StringName()) {
diff --git a/modules/visual_script/visual_script_property_selector.cpp b/modules/visual_script/visual_script_property_selector.cpp
index ac5f73d113..ceec79c0d5 100644
--- a/modules/visual_script/visual_script_property_selector.cpp
+++ b/modules/visual_script/visual_script_property_selector.cpp
@@ -87,38 +87,17 @@ void VisualScriptPropertySelector::_update_search() {
 
 	TreeItem *root = search_options->create_item();
 	bool found = false;
+	StringName base = base_type;
+	List<StringName> base_list;
+	while (base) {
+		base_list.push_back(base);
+		base = ClassDB::get_parent_class_nocheck(base);
+	}
 
-	if (properties) {
-
+	for (List<StringName>::Element *E = base_list.front(); E; E = E->next()) {
+		List<MethodInfo> methods;
 		List<PropertyInfo> props;
-
-		if (instance) {
-			instance->get_property_list(&props, true);
-		} else if (type != Variant::NIL) {
-			Variant v;
-			Variant::CallError ce;
-			v = Variant::construct(type, NULL, 0, ce);
-
-			v.get_property_list(&props);
-		} else {
-
-			Object *obj = ObjectDB::get_instance(script);
-			if (Object::cast_to<Script>(obj)) {
-
-				props.push_back(PropertyInfo(Variant::NIL, "Script Variables", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_CATEGORY));
-				Object::cast_to<Script>(obj)->get_script_property_list(&props);
-			}
-
-			StringName base = base_type;
-			while (base) {
-				props.push_back(PropertyInfo(Variant::NIL, base, PROPERTY_HINT_NONE, "", PROPERTY_USAGE_CATEGORY));
-				ClassDB::get_property_list(base, &props, true);
-				base = ClassDB::get_parent_class_nocheck(base);
-			}
-		}
-
 		TreeItem *category = NULL;
-
 		Ref<Texture> type_icons[Variant::VARIANT_MAX] = {
 			Control::get_icon("Variant", "EditorIcons"),
 			Control::get_icon("bool", "EditorIcons"),
@@ -148,85 +127,164 @@ void VisualScriptPropertySelector::_update_search() {
 			Control::get_icon("PoolVector3Array", "EditorIcons"),
 			Control::get_icon("PoolColorArray", "EditorIcons")
 		};
-
-		if (!seq_connect && !visual_script_generic) {
-			get_visual_node_names("flow_control/type_cast", Set<String>(), found, root, search_box);
-			get_visual_node_names("functions/built_in/print", Set<String>(), found, root, search_box);
-			get_visual_node_names("functions/by_type/" + Variant::get_type_name(type), Set<String>(), found, root, search_box);
-			get_visual_node_names("operators/compare/", Set<String>(), found, root, search_box);
-			if (type == Variant::INT) {
-				get_visual_node_names("operators/bitwise/", Set<String>(), found, root, search_box);
-			}
-			if (type == Variant::BOOL) {
-				get_visual_node_names("operators/logic/", Set<String>(), found, root, search_box);
+		{
+			String b = String(E->get());
+			category = search_options->create_item(root);
+			category->set_text(0, b.replace_first("*", ""));
+			category->set_selectable(0, false);
+			Ref<Texture> icon;
+			String rep = b.replace("*", "");
+			icon = EditorNode::get_singleton()->get_class_icon(rep);
+			category->set_icon(0, icon);
+		}
+		if (properties || seq_connect) {
+			if (instance) {
+				instance->get_property_list(&props, true);
+			} else {
+				Object *obj = ObjectDB::get_instance(script);
+				if (Object::cast_to<Script>(obj)) {
+					Object::cast_to<Script>(obj)->get_script_property_list(&props);
+				} else {
+					ClassDB::get_property_list(E->get(), &props, true);
+				}
 			}
-			if (type == Variant::BOOL || type == Variant::INT || type == Variant::REAL || type == Variant::VECTOR2 || type == Variant::VECTOR3) {
-				get_visual_node_names("operators/math/", Set<String>(), found, root, search_box);
+			for (List<PropertyInfo>::Element *F = props.front(); F; F = F->next()) {
+				if (!(F->get().usage & PROPERTY_USAGE_EDITOR) && !(F->get().usage & PROPERTY_USAGE_SCRIPT_VARIABLE))
+					continue;
+
+				if (type_filter.size() && type_filter.find(F->get().type) == -1)
+					continue;
+
+				// capitalize() also converts underscore to space, we'll match again both possible styles
+				String get_text_raw = String(vformat(TTR("Get %s"), F->get().name));
+				String get_text = get_text_raw.capitalize();
+				String set_text_raw = String(vformat(TTR("Set %s"), F->get().name));
+				String set_text = set_text_raw.capitalize();
+				String input = search_box->get_text().capitalize();
+
+				if (input == String() || get_text_raw.findn(input) != -1 || get_text.findn(input) != -1) {
+					TreeItem *item = search_options->create_item(category ? category : root);
+					item->set_text(0, get_text);
+					item->set_metadata(0, F->get().name);
+					item->set_icon(0, type_icons[F->get().type]);
+					item->set_metadata(1, "get");
+					item->set_collapsed(1);
+					item->set_selectable(0, true);
+					item->set_selectable(1, false);
+					item->set_selectable(2, false);
+					item->set_metadata(2, connecting);
+				}
+
+				if (input == String() || set_text_raw.findn(input) != -1 || set_text.findn(input) != -1) {
+					TreeItem *item = search_options->create_item(category ? category : root);
+					item->set_text(0, set_text);
+					item->set_metadata(0, F->get().name);
+					item->set_icon(0, type_icons[F->get().type]);
+					item->set_metadata(1, "set");
+					item->set_selectable(0, true);
+					item->set_selectable(1, false);
+					item->set_selectable(2, false);
+					item->set_metadata(2, connecting);
+				}
 			}
 		}
+		bool script_methods = false;
+		{
+			if (type != Variant::NIL) {
+				Variant v;
+				Variant::CallError ce;
+				v = Variant::construct(type, NULL, 0, ce);
+				v.get_method_list(&methods);
+			} else {
 
-		for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
-			if (E->get().usage == PROPERTY_USAGE_CATEGORY) {
-				if (category && category->get_children() == NULL) {
-					memdelete(category); //old category was unused
-				}
-				category = search_options->create_item(root);
-				category->set_text(0, E->get().name);
-				category->set_selectable(0, false);
+				Object *obj = ObjectDB::get_instance(script);
+				if (Object::cast_to<Script>(obj)) {
+					methods.push_back(MethodInfo("*Script Methods"));
+					Object::cast_to<Script>(obj)->get_script_method_list(&methods);
 
-				Ref<Texture> icon;
-				if (E->get().name == "Script Variables") {
-					icon = get_icon("Script", "EditorIcons");
 				} else {
-					icon = EditorNode::get_singleton()->get_class_icon(E->get().name);
+					methods.push_back(MethodInfo("*" + String(E->get())));
+					ClassDB::get_method_list(E->get(), &methods, true, true);
 				}
-				category->set_icon(0, icon);
-				continue;
 			}
+		}
+		for (List<MethodInfo>::Element *M = methods.front(); M; M = M->next()) {
+
+			String name = M->get().name.get_slice(":", 0);
+			if (!script_methods && name.begins_with("_") && !(M->get().flags & METHOD_FLAG_VIRTUAL))
+				continue;
 
-			if (!(E->get().usage & PROPERTY_USAGE_EDITOR) && !(E->get().usage & PROPERTY_USAGE_SCRIPT_VARIABLE))
+			if (virtuals_only && !(M->get().flags & METHOD_FLAG_VIRTUAL))
 				continue;
 
-			if (type_filter.size() && type_filter.find(E->get().type) == -1)
+			if (!virtuals_only && (M->get().flags & METHOD_FLAG_VIRTUAL))
 				continue;
 
-			// capitalize() also converts underscore to space, we'll match again both possible styles
-			String get_text_raw = String(vformat(TTR("Get %s"), E->get().name));
-			String get_text = get_text_raw.capitalize();
-			String set_text_raw = String(vformat(TTR("Set %s"), E->get().name));
-			String set_text = set_text_raw.capitalize();
-			String input = search_box->get_text().capitalize();
-
-			if (input == String() || get_text_raw.findn(input) != -1 || get_text.findn(input) != -1) {
-				TreeItem *item = search_options->create_item(category ? category : root);
-				item->set_text(0, get_text);
-				item->set_metadata(0, E->get().name);
-				item->set_icon(0, type_icons[E->get().type]);
-				item->set_metadata(1, "get");
-				item->set_collapsed(1);
-				item->set_selectable(0, true);
-				item->set_selectable(1, false);
-				item->set_selectable(2, false);
-				item->set_metadata(2, connecting);
+			MethodInfo mi = M->get();
+			String desc_arguments;
+			if (mi.arguments.size() > 0) {
+				desc_arguments = "(";
+				for (int i = 0; i < mi.arguments.size(); i++) {
+
+					if (i > 0) {
+						desc_arguments += ", ";
+					}
+					if (mi.arguments[i].type == Variant::NIL) {
+						desc_arguments += "var";
+					} else if (mi.arguments[i].name.find(":") != -1) {
+						desc_arguments += mi.arguments[i].name.get_slice(":", 1);
+						mi.arguments[i].name = mi.arguments[i].name.get_slice(":", 0);
+					} else {
+						desc_arguments += Variant::get_type_name(mi.arguments[i].type);
+					}
+				}
+				desc_arguments += ")";
 			}
+			String desc_raw = mi.name + desc_arguments;
+			String desc = desc_raw.capitalize().replace("( ", "(");
 
-			if (input == String() || set_text_raw.findn(input) != -1 || set_text.findn(input) != -1) {
-				TreeItem *item = search_options->create_item(category ? category : root);
-				item->set_text(0, set_text);
-				item->set_metadata(0, E->get().name);
-				item->set_icon(0, type_icons[E->get().type]);
-				item->set_metadata(1, "set");
-				item->set_selectable(0, true);
-				item->set_selectable(1, false);
-				item->set_selectable(2, false);
-				item->set_metadata(2, connecting);
+			if (search_box->get_text() != String() &&
+					name.findn(search_box->get_text()) == -1 &&
+					desc.findn(search_box->get_text()) == -1 &&
+					desc_raw.findn(search_box->get_text()) == -1) {
+				continue;
 			}
+
+			TreeItem *item = search_options->create_item(category ? category : root);
+			item->set_text(0, desc);
+			item->set_icon(0, get_icon("MemberMethod", "EditorIcons"));
+			item->set_metadata(0, name);
+			item->set_selectable(0, true);
+
+			item->set_metadata(1, "method");
+			item->set_collapsed(1);
+			item->set_selectable(1, false);
+
+			item->set_selectable(2, false);
+			item->set_metadata(2, connecting);
 		}
 
 		if (category && category->get_children() == NULL) {
 			memdelete(category); //old category was unused
 		}
 	}
+	if (properties) {
+		if (!seq_connect && !visual_script_generic) {
+			get_visual_node_names("flow_control/type_cast", Set<String>(), found, root, search_box);
+			get_visual_node_names("functions/built_in/print", Set<String>(), found, root, search_box);
+			get_visual_node_names("functions/by_type/" + Variant::get_type_name(type), Set<String>(), found, root, search_box);
+			get_visual_node_names("operators/compare/", Set<String>(), found, root, search_box);
+			if (type == Variant::INT) {
+				get_visual_node_names("operators/bitwise/", Set<String>(), found, root, search_box);
+			}
+			if (type == Variant::BOOL) {
+				get_visual_node_names("operators/logic/", Set<String>(), found, root, search_box);
+			}
+			if (type == Variant::BOOL || type == Variant::INT || type == Variant::REAL || type == Variant::VECTOR2 || type == Variant::VECTOR3) {
+				get_visual_node_names("operators/math/", Set<String>(), found, root, search_box);
+			}
+		}
+	}
 
 	if (seq_connect && !visual_script_generic) {
 		String text = search_box->get_text();
@@ -240,127 +298,16 @@ void VisualScriptPropertySelector::_update_search() {
 		get_visual_node_names("functions/built_in/print", Set<String>(), found, root, search_box);
 	}
 
-	if (visual_script_generic) {
+	if ((properties || seq_connect) && visual_script_generic) {
 		get_visual_node_names("", Set<String>(), found, root, search_box);
 	}
 
-	List<MethodInfo> methods;
-
-	if (type != Variant::NIL) {
-		Variant v;
-		Variant::CallError ce;
-		v = Variant::construct(type, NULL, 0, ce);
-		v.get_method_list(&methods);
-	} else {
-
-		Object *obj = ObjectDB::get_instance(script);
-		if (Object::cast_to<Script>(obj)) {
-
-			methods.push_back(MethodInfo("*Script Methods"));
-			Object::cast_to<Script>(obj)->get_script_method_list(&methods);
-		}
-
-		StringName base = base_type;
-		while (base) {
-			methods.push_back(MethodInfo("*" + String(base)));
-			ClassDB::get_method_list(base, &methods, true, true);
-			base = ClassDB::get_parent_class_nocheck(base);
-		}
-	}
-	TreeItem *category = NULL;
-	bool script_methods = false;
-
-	for (List<MethodInfo>::Element *E = methods.front(); E; E = E->next()) {
-		if (E->get().name.begins_with("*")) {
-			if (category && category->get_children() == NULL) {
-				memdelete(category); //old category was unused
-			}
-			category = search_options->create_item(root);
-			category->set_text(0, E->get().name.replace_first("*", ""));
-			category->set_selectable(0, false);
-
-			Ref<Texture> icon;
-			script_methods = false;
-			String rep = E->get().name.replace("*", "");
-			if (E->get().name == "*Script Methods") {
-				icon = get_icon("Script", "EditorIcons");
-				script_methods = true;
-			} else {
-				icon = EditorNode::get_singleton()->get_class_icon(rep);
-			}
-			category->set_icon(0, icon);
-
-			continue;
-		}
-
-		String name = E->get().name.get_slice(":", 0);
-		if (!script_methods && name.begins_with("_") && !(E->get().flags & METHOD_FLAG_VIRTUAL))
-			continue;
-
-		if (virtuals_only && !(E->get().flags & METHOD_FLAG_VIRTUAL))
-			continue;
-
-		if (!virtuals_only && (E->get().flags & METHOD_FLAG_VIRTUAL))
-			continue;
-
-		MethodInfo mi = E->get();
-		String desc_arguments;
-		if (mi.arguments.size() > 0) {
-			desc_arguments = "(";
-			for (int i = 0; i < mi.arguments.size(); i++) {
-
-				if (i > 0) {
-					desc_arguments += ", ";
-				}
-				if (mi.arguments[i].type == Variant::NIL) {
-					desc_arguments += "var";
-				} else if (mi.arguments[i].name.find(":") != -1) {
-					desc_arguments += mi.arguments[i].name.get_slice(":", 1);
-					mi.arguments[i].name = mi.arguments[i].name.get_slice(":", 0);
-				} else {
-					desc_arguments += Variant::get_type_name(mi.arguments[i].type);
-				}
-			}
-			desc_arguments += ")";
-		}
-		String desc_raw = mi.name + desc_arguments;
-		String desc = desc_raw.capitalize().replace("( ", "(");
-
-		if (search_box->get_text() != String() &&
-				name.findn(search_box->get_text()) == -1 &&
-				desc.findn(search_box->get_text()) == -1 &&
-				desc_raw.findn(search_box->get_text()) == -1) {
-			continue;
-		}
-
-		TreeItem *item = search_options->create_item(category ? category : root);
-		item->set_text(0, desc);
-		item->set_icon(0, get_icon("MemberMethod", "EditorIcons"));
-		item->set_metadata(0, name);
-		item->set_selectable(0, true);
-
-		item->set_metadata(1, "method");
-		item->set_collapsed(1);
-		item->set_selectable(1, false);
-
-		item->set_selectable(2, false);
-		item->set_metadata(2, connecting);
-
-		if (category && category->get_children() == NULL) {
-			memdelete(category); //old category was unused
-		}
-	}
-
 	TreeItem *selected_item = search_options->search_item_text(search_box->get_text());
 	if (!found && selected_item != NULL) {
 		selected_item->select(0);
 		found = true;
 	}
 
-	if (category && category->get_children() == NULL) {
-		memdelete(category); //old category was unused
-	}
-
 	get_ok()->set_disabled(root->get_children() == NULL);
 }
 
@@ -488,23 +435,23 @@ void VisualScriptPropertySelector::_item_selected() {
 
 	while (at_class != String()) {
 
-		Map<String, DocData::ClassDoc>::Element *E = dd->class_list.find(at_class);
-		if (E) {
-			for (int i = 0; i < E->get().methods.size(); i++) {
-				if (E->get().methods[i].name == name) {
-					text = E->get().methods[i].description;
+		Map<String, DocData::ClassDoc>::Element *C = dd->class_list.find(at_class);
+		if (C) {
+			for (int i = 0; i < C->get().methods.size(); i++) {
+				if (C->get().methods[i].name == name) {
+					text = C->get().methods[i].description;
 				}
 			}
 		}
 
 		at_class = ClassDB::get_parent_class_nocheck(at_class);
 	}
-	Map<String, DocData::ClassDoc>::Element *E = dd->class_list.find(class_type);
-	if (E) {
-		for (int i = 0; i < E->get().methods.size(); i++) {
+	Map<String, DocData::ClassDoc>::Element *T = dd->class_list.find(class_type);
+	if (T) {
+		for (int i = 0; i < T->get().methods.size(); i++) {
 			Vector<String> functions = name.rsplit("/", false, 1);
-			if (E->get().methods[i].name == functions[functions.size() - 1]) {
-				text = E->get().methods[i].description;
+			if (T->get().methods[i].name == functions[functions.size() - 1]) {
+				text = T->get().methods[i].description;
 			}
 		}
 	}
diff --git a/modules/vorbis/SCsub b/modules/vorbis/SCsub
index 19587563ab..3824fdd789 100644
--- a/modules/vorbis/SCsub
+++ b/modules/vorbis/SCsub
@@ -40,11 +40,11 @@ if env['builtin_libvorbis']:
 
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_vorbis.Append(CPPPATH=[thirdparty_dir])
+    env_vorbis.Prepend(CPPPATH=[thirdparty_dir])
 
     # also requires libogg
     if env['builtin_libogg']:
-        env_vorbis.Append(CPPPATH=["#thirdparty/libogg"])
+        env_vorbis.Prepend(CPPPATH=["#thirdparty/libogg"])
 
     env_thirdparty = env_vorbis.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/webm/SCsub b/modules/webm/SCsub
index cb35b926ab..e57437229f 100644
--- a/modules/webm/SCsub
+++ b/modules/webm/SCsub
@@ -15,22 +15,22 @@ thirdparty_sources = [
 ]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_webm.Append(CPPPATH=[thirdparty_dir, thirdparty_dir + "libwebm/"])
+env_webm.Prepend(CPPPATH=[thirdparty_dir, thirdparty_dir + "libwebm/"])
 
 # upstream uses c++11
 if (not env_webm.msvc):
-	env_webm.Append(CCFLAGS="-std=c++11")
+	env_webm.Append(CXXFLAGS="-std=c++11")
 
 # also requires libogg, libvorbis and libopus
 if env['builtin_libogg']:
-    env_webm.Append(CPPPATH=["#thirdparty/libogg"])
+    env_webm.Prepend(CPPPATH=["#thirdparty/libogg"])
 if env['builtin_libvorbis']:
-    env_webm.Append(CPPPATH=["#thirdparty/libvorbis"])
+    env_webm.Prepend(CPPPATH=["#thirdparty/libvorbis"])
 if env['builtin_opus']:
-    env_webm.Append(CPPPATH=["#thirdparty/opus"])
+    env_webm.Prepend(CPPPATH=["#thirdparty/opus"])
 
 if env['builtin_libvpx']:
-    env_webm.Append(CPPPATH=["#thirdparty/libvpx"])
+    env_webm.Prepend(CPPPATH=["#thirdparty/libvpx"])
     SConscript("libvpx/SCsub")
 
 env_thirdparty = env_webm.Clone()
diff --git a/modules/webm/doc_classes/VideoStreamWebm.xml b/modules/webm/doc_classes/VideoStreamWebm.xml
index c02a7a8016..ff11bbb37d 100644
--- a/modules/webm/doc_classes/VideoStreamWebm.xml
+++ b/modules/webm/doc_classes/VideoStreamWebm.xml
@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="VideoStreamWebm" inherits="VideoStream" category="Core" version="3.1">
+<class name="VideoStreamWebm" inherits="VideoStream" category="Core" version="3.2">
 	<brief_description>
 	</brief_description>
 	<description>
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_file">
 			<return type="String">
diff --git a/modules/webm/libvpx/SCsub b/modules/webm/libvpx/SCsub
index 2639d20620..a6be1380a6 100644
--- a/modules/webm/libvpx/SCsub
+++ b/modules/webm/libvpx/SCsub
@@ -256,7 +256,7 @@ libvpx_sources_arm_neon_gas_apple = [libvpx_dir + file for file in libvpx_source
 
 env_libvpx = env_modules.Clone()
 env_libvpx.disable_warnings()
-env_libvpx.Append(CPPPATH=[libvpx_dir])
+env_libvpx.Prepend(CPPPATH=[libvpx_dir])
 
 webm_multithread = env["platform"] != 'javascript'
 
@@ -323,7 +323,7 @@ if webm_cpu_x86:
     elif cpu_bits == '64':
         env_libvpx["ASCPU"] = 'X86_64'
 
-    env_libvpx.Append(CCFLAGS=['-DWEBM_X86ASM'])
+    env_libvpx.Append(CPPFLAGS=['-DWEBM_X86ASM'])
 
     webm_simd_optimizations = True
 
@@ -337,7 +337,7 @@ if webm_cpu_arm:
         env_libvpx["ASFLAGS"] = ''
         env_libvpx["ASCOM"] = '$AS $ASFLAGS -o $TARGET $SOURCES'
 
-    env_libvpx.Append(CCFLAGS=['-DWEBM_ARMASM'])
+    env_libvpx.Append(CPPFLAGS=['-DWEBM_ARMASM'])
 
     webm_simd_optimizations = True
 
@@ -380,7 +380,7 @@ if webm_cpu_x86:
 elif webm_cpu_arm:
     env_libvpx.add_source_files(env.modules_sources, libvpx_sources_arm)
     if env["platform"] == 'android':
-        env_libvpx.Append(CPPPATH=[libvpx_dir + "third_party/android"])
+        env_libvpx.Prepend(CPPPATH=[libvpx_dir + "third_party/android"])
         env_libvpx.add_source_files(env.modules_sources, [libvpx_dir + "third_party/android/cpu-features.c"])
 
     env_libvpx_neon = env_libvpx.Clone()
diff --git a/modules/webm/video_stream_webm.cpp b/modules/webm/video_stream_webm.cpp
index 06f9e39dc7..6485c95360 100644
--- a/modules/webm/video_stream_webm.cpp
+++ b/modules/webm/video_stream_webm.cpp
@@ -32,6 +32,7 @@
 
 #include "OpusVorbisDecoder.hpp"
 #include "VPXDecoder.hpp"
+#include <vpx/vpx_image.h>
 
 #include "mkvparser/mkvparser.h"
 
@@ -314,19 +315,37 @@ void VideoStreamPlaybackWebm::update(float p_delta) {
 						PoolVector<uint8_t>::Write w = frame_data.write();
 						bool converted = false;
 
-						if (image.chromaShiftW == 1 && image.chromaShiftH == 1) {
+						if (image.chromaShiftW == 0 && image.chromaShiftH == 0 && image.cs == VPX_CS_SRGB) {
+
+							uint8_t *wp = w.ptr();
+							unsigned char *rRow = image.planes[2];
+							unsigned char *gRow = image.planes[0];
+							unsigned char *bRow = image.planes[1];
+							for (int i = 0; i < image.h; i++) {
+								for (int j = 0; j < image.w; j++) {
+									*wp++ = rRow[j];
+									*wp++ = gRow[j];
+									*wp++ = bRow[j];
+									*wp++ = 255;
+								}
+								rRow += image.linesize[2];
+								gRow += image.linesize[0];
+								bRow += image.linesize[1];
+							}
+							converted = true;
+						} else if (image.chromaShiftW == 1 && image.chromaShiftH == 1) {
 
-							yuv420_2_rgb8888(w.ptr(), image.planes[0], image.planes[2], image.planes[1], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2, 0);
+							yuv420_2_rgb8888(w.ptr(), image.planes[0], image.planes[1], image.planes[2], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2);
 							// 								libyuv::I420ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
 							converted = true;
 						} else if (image.chromaShiftW == 1 && image.chromaShiftH == 0) {
 
-							yuv422_2_rgb8888(w.ptr(), image.planes[0], image.planes[2], image.planes[1], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2, 0);
+							yuv422_2_rgb8888(w.ptr(), image.planes[0], image.planes[1], image.planes[2], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2);
 							// 								libyuv::I422ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
 							converted = true;
 						} else if (image.chromaShiftW == 0 && image.chromaShiftH == 0) {
 
-							yuv444_2_rgb8888(w.ptr(), image.planes[0], image.planes[2], image.planes[1], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2, 0);
+							yuv444_2_rgb8888(w.ptr(), image.planes[0], image.planes[1], image.planes[2], image.w, image.h, image.linesize[0], image.linesize[1], image.w << 2);
 							// 								libyuv::I444ToARGB(image.planes[0], image.linesize[0], image.planes[2], image.linesize[2], image.planes[1], image.linesize[1], w.ptr(), image.w << 2, image.w, image.h);
 							converted = true;
 						} else if (image.chromaShiftW == 2 && image.chromaShiftH == 0) {
@@ -375,7 +394,7 @@ int VideoStreamPlaybackWebm::get_mix_rate() const {
 inline bool VideoStreamPlaybackWebm::has_enough_video_frames() const {
 	if (video_frames_pos > 0) {
 
-		const double audio_delay = AudioServer::get_singleton()->get_output_delay();
+		const double audio_delay = AudioServer::get_singleton()->get_output_latency();
 		const double video_time = video_frames[video_frames_pos - 1]->time;
 		return video_time >= time + audio_delay + delay_compensation;
 	}
@@ -383,7 +402,7 @@ inline bool VideoStreamPlaybackWebm::has_enough_video_frames() const {
 }
 
 bool VideoStreamPlaybackWebm::should_process(WebMFrame &video_frame) {
-	const double audio_delay = AudioServer::get_singleton()->get_output_delay();
+	const double audio_delay = AudioServer::get_singleton()->get_output_latency();
 	return video_frame.time >= time + audio_delay + delay_compensation;
 }
 
diff --git a/modules/webp/SCsub b/modules/webp/SCsub
index fa3896c457..666628bb44 100644
--- a/modules/webp/SCsub
+++ b/modules/webp/SCsub
@@ -126,7 +126,7 @@ if env['builtin_libwebp']:
     ]
     thirdparty_sources = [thirdparty_dir + "src/" + file for file in thirdparty_sources]
 
-    env_webp.Append(CPPPATH=[thirdparty_dir, thirdparty_dir + "src/"])
+    env_webp.Prepend(CPPPATH=[thirdparty_dir, thirdparty_dir + "src/"])
 
     env_thirdparty = env_webp.Clone()
     env_thirdparty.disable_warnings()
diff --git a/modules/webrtc/SCsub b/modules/webrtc/SCsub
new file mode 100644
index 0000000000..868553b879
--- /dev/null
+++ b/modules/webrtc/SCsub
@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+
+Import('env')
+Import('env_modules')
+
+# Thirdparty source files
+
+env_webrtc = env_modules.Clone()
+use_gdnative = env_webrtc["module_gdnative_enabled"]
+
+if use_gdnative: # GDNative is retained in Javascript for export compatibility
+    env_webrtc.Append(CPPDEFINES=['WEBRTC_GDNATIVE_ENABLED'])
+    env_webrtc.Prepend(CPPPATH=["#modules/gdnative/include/"])
+
+env_webrtc.add_source_files(env.modules_sources, "*.cpp")
diff --git a/modules/webrtc/config.py b/modules/webrtc/config.py
new file mode 100644
index 0000000000..5ed245bad2
--- /dev/null
+++ b/modules/webrtc/config.py
@@ -0,0 +1,13 @@
+def can_build(env, platform):
+    return True
+
+def configure(env):
+    pass
+
+def get_doc_classes():
+    return [
+        "WebRTCPeer"
+    ]
+
+def get_doc_path():
+    return "doc_classes"
diff --git a/modules/webrtc/doc_classes/WebRTCPeer.xml b/modules/webrtc/doc_classes/WebRTCPeer.xml
new file mode 100644
index 0000000000..18d1345623
--- /dev/null
+++ b/modules/webrtc/doc_classes/WebRTCPeer.xml
@@ -0,0 +1,109 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="WebRTCPeer" inherits="PacketPeer" category="Core" version="3.2">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="add_ice_candidate">
+			<return type="int" enum="Error">
+			</return>
+			<argument index="0" name="media" type="String">
+			</argument>
+			<argument index="1" name="index" type="int">
+			</argument>
+			<argument index="2" name="name" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="create_offer">
+			<return type="int" enum="Error">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="get_connection_state" qualifiers="const">
+			<return type="int" enum="WebRTCPeer.ConnectionState">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="poll">
+			<return type="int" enum="Error">
+			</return>
+			<description>
+			</description>
+		</method>
+		<method name="set_local_description">
+			<return type="int" enum="Error">
+			</return>
+			<argument index="0" name="type" type="String">
+			</argument>
+			<argument index="1" name="sdp" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="set_remote_description">
+			<return type="int" enum="Error">
+			</return>
+			<argument index="0" name="type" type="String">
+			</argument>
+			<argument index="1" name="sdp" type="String">
+			</argument>
+			<description>
+			</description>
+		</method>
+		<method name="was_string_packet" qualifiers="const">
+			<return type="bool">
+			</return>
+			<description>
+			</description>
+		</method>
+	</methods>
+	<members>
+		<member name="write_mode" type="int" setter="set_write_mode" getter="get_write_mode" enum="WebRTCPeer.WriteMode">
+		</member>
+	</members>
+	<signals>
+		<signal name="new_ice_candidate">
+			<argument index="0" name="media" type="String">
+			</argument>
+			<argument index="1" name="index" type="int">
+			</argument>
+			<argument index="2" name="name" type="String">
+			</argument>
+			<description>
+			</description>
+		</signal>
+		<signal name="offer_created">
+			<argument index="0" name="type" type="String">
+			</argument>
+			<argument index="1" name="sdp" type="String">
+			</argument>
+			<description>
+			</description>
+		</signal>
+	</signals>
+	<constants>
+		<constant name="WRITE_MODE_TEXT" value="0" enum="WriteMode">
+		</constant>
+		<constant name="WRITE_MODE_BINARY" value="1" enum="WriteMode">
+		</constant>
+		<constant name="STATE_NEW" value="0" enum="ConnectionState">
+		</constant>
+		<constant name="STATE_CONNECTING" value="1" enum="ConnectionState">
+		</constant>
+		<constant name="STATE_CONNECTED" value="2" enum="ConnectionState">
+		</constant>
+		<constant name="STATE_DISCONNECTED" value="3" enum="ConnectionState">
+		</constant>
+		<constant name="STATE_FAILED" value="4" enum="ConnectionState">
+		</constant>
+		<constant name="STATE_CLOSED" value="5" enum="ConnectionState">
+		</constant>
+	</constants>
+</class>
diff --git a/modules/webrtc/register_types.cpp b/modules/webrtc/register_types.cpp
new file mode 100644
index 0000000000..ee7a766bd9
--- /dev/null
+++ b/modules/webrtc/register_types.cpp
@@ -0,0 +1,55 @@
+/*************************************************************************/
+/*  register_types.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "register_types.h"
+#include "webrtc_peer.h"
+
+#ifdef JAVASCRIPT_ENABLED
+#include "emscripten.h"
+#include "webrtc_peer_js.h"
+#endif
+#ifdef WEBRTC_GDNATIVE_ENABLED
+#include "webrtc_peer_gdnative.h"
+#endif
+
+void register_webrtc_types() {
+#ifdef JAVASCRIPT_ENABLED
+	WebRTCPeerJS::make_default();
+#elif defined(WEBRTC_GDNATIVE_ENABLED)
+	WebRTCPeerGDNative::make_default();
+#endif
+
+	ClassDB::register_custom_instance_class<WebRTCPeer>();
+#ifdef WEBRTC_GDNATIVE_ENABLED
+	ClassDB::register_class<WebRTCPeerGDNative>();
+#endif
+}
+
+void unregister_webrtc_types() {}
diff --git a/modules/webrtc/register_types.h b/modules/webrtc/register_types.h
new file mode 100644
index 0000000000..18a5dcc5aa
--- /dev/null
+++ b/modules/webrtc/register_types.h
@@ -0,0 +1,32 @@
+/*************************************************************************/
+/*  register_types.h                                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+void register_webrtc_types();
+void unregister_webrtc_types();
diff --git a/modules/webrtc/webrtc_peer.cpp b/modules/webrtc/webrtc_peer.cpp
new file mode 100644
index 0000000000..30c4505df9
--- /dev/null
+++ b/modules/webrtc/webrtc_peer.cpp
@@ -0,0 +1,81 @@
+/*************************************************************************/
+/*  webrtc_peer.cpp                                                      */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "webrtc_peer.h"
+
+WebRTCPeer *(*WebRTCPeer::_create)() = NULL;
+
+Ref<WebRTCPeer> WebRTCPeer::create_ref() {
+
+	if (!_create)
+		return Ref<WebRTCPeer>();
+	return Ref<WebRTCPeer>(_create());
+}
+
+WebRTCPeer *WebRTCPeer::create() {
+
+	if (!_create)
+		return NULL;
+	return _create();
+}
+
+void WebRTCPeer::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("create_offer"), &WebRTCPeer::create_offer);
+	ClassDB::bind_method(D_METHOD("set_local_description", "type", "sdp"), &WebRTCPeer::set_local_description);
+	ClassDB::bind_method(D_METHOD("set_remote_description", "type", "sdp"), &WebRTCPeer::set_remote_description);
+	ClassDB::bind_method(D_METHOD("poll"), &WebRTCPeer::poll);
+	ClassDB::bind_method(D_METHOD("add_ice_candidate", "media", "index", "name"), &WebRTCPeer::add_ice_candidate);
+
+	ClassDB::bind_method(D_METHOD("was_string_packet"), &WebRTCPeer::was_string_packet);
+	ClassDB::bind_method(D_METHOD("set_write_mode", "write_mode"), &WebRTCPeer::set_write_mode);
+	ClassDB::bind_method(D_METHOD("get_write_mode"), &WebRTCPeer::get_write_mode);
+	ClassDB::bind_method(D_METHOD("get_connection_state"), &WebRTCPeer::get_connection_state);
+
+	ADD_SIGNAL(MethodInfo("offer_created", PropertyInfo(Variant::STRING, "type"), PropertyInfo(Variant::STRING, "sdp")));
+	ADD_SIGNAL(MethodInfo("new_ice_candidate", PropertyInfo(Variant::STRING, "media"), PropertyInfo(Variant::INT, "index"), PropertyInfo(Variant::STRING, "name")));
+
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "write_mode", PROPERTY_HINT_ENUM), "set_write_mode", "get_write_mode");
+
+	BIND_ENUM_CONSTANT(WRITE_MODE_TEXT);
+	BIND_ENUM_CONSTANT(WRITE_MODE_BINARY);
+
+	BIND_ENUM_CONSTANT(STATE_NEW);
+	BIND_ENUM_CONSTANT(STATE_CONNECTING);
+	BIND_ENUM_CONSTANT(STATE_CONNECTED);
+	BIND_ENUM_CONSTANT(STATE_DISCONNECTED);
+	BIND_ENUM_CONSTANT(STATE_FAILED);
+	BIND_ENUM_CONSTANT(STATE_CLOSED);
+}
+
+WebRTCPeer::WebRTCPeer() {
+}
+
+WebRTCPeer::~WebRTCPeer() {
+}
diff --git a/modules/webrtc/webrtc_peer.h b/modules/webrtc/webrtc_peer.h
new file mode 100644
index 0000000000..e141c14655
--- /dev/null
+++ b/modules/webrtc/webrtc_peer.h
@@ -0,0 +1,86 @@
+/*************************************************************************/
+/*  webrtc_peer.h                                                        */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef WEBRTC_PEER_H
+#define WEBRTC_PEER_H
+
+#include "core/io/packet_peer.h"
+
+class WebRTCPeer : public PacketPeer {
+	GDCLASS(WebRTCPeer, PacketPeer);
+
+public:
+	enum WriteMode {
+		WRITE_MODE_TEXT,
+		WRITE_MODE_BINARY,
+	};
+
+	enum ConnectionState {
+		STATE_NEW,
+		STATE_CONNECTING,
+		STATE_CONNECTED,
+		STATE_DISCONNECTED,
+		STATE_FAILED,
+		STATE_CLOSED
+	};
+
+protected:
+	static void _bind_methods();
+	static WebRTCPeer *(*_create)();
+
+public:
+	virtual void set_write_mode(WriteMode mode) = 0;
+	virtual WriteMode get_write_mode() const = 0;
+	virtual bool was_string_packet() const = 0;
+	virtual ConnectionState get_connection_state() const = 0;
+
+	virtual Error create_offer() = 0;
+	virtual Error set_remote_description(String type, String sdp) = 0;
+	virtual Error set_local_description(String type, String sdp) = 0;
+	virtual Error add_ice_candidate(String sdpMidName, int sdpMlineIndexName, String sdpName) = 0;
+	virtual Error poll() = 0;
+
+	/** Inherited from PacketPeer: **/
+	virtual int get_available_packet_count() const = 0;
+	virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) = 0; ///< buffer is GONE after next get_packet
+	virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) = 0;
+
+	virtual int get_max_packet_size() const = 0;
+
+	static Ref<WebRTCPeer> create_ref();
+	static WebRTCPeer *create();
+
+	WebRTCPeer();
+	~WebRTCPeer();
+};
+
+VARIANT_ENUM_CAST(WebRTCPeer::WriteMode);
+VARIANT_ENUM_CAST(WebRTCPeer::ConnectionState);
+#endif // WEBRTC_PEER_H
diff --git a/modules/webrtc/webrtc_peer_gdnative.cpp b/modules/webrtc/webrtc_peer_gdnative.cpp
new file mode 100644
index 0000000000..f782944980
--- /dev/null
+++ b/modules/webrtc/webrtc_peer_gdnative.cpp
@@ -0,0 +1,114 @@
+/*************************************************************************/
+/*  webrtc_peer_gdnative.cpp                                             */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifdef WEBRTC_GDNATIVE_ENABLED
+
+#include "webrtc_peer_gdnative.h"
+
+void WebRTCPeerGDNative::_bind_methods() {
+}
+
+WebRTCPeerGDNative::WebRTCPeerGDNative() {
+	interface = NULL;
+}
+
+WebRTCPeerGDNative::~WebRTCPeerGDNative() {
+}
+
+Error WebRTCPeerGDNative::create_offer() {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->create_offer(interface->data);
+}
+
+Error WebRTCPeerGDNative::set_local_description(String p_type, String p_sdp) {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->set_local_description(interface->data, p_type.utf8().get_data(), p_sdp.utf8().get_data());
+}
+
+Error WebRTCPeerGDNative::set_remote_description(String p_type, String p_sdp) {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->set_remote_description(interface->data, p_type.utf8().get_data(), p_sdp.utf8().get_data());
+}
+
+Error WebRTCPeerGDNative::add_ice_candidate(String sdpMidName, int sdpMlineIndexName, String sdpName) {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->add_ice_candidate(interface->data, sdpMidName.utf8().get_data(), sdpMlineIndexName, sdpName.utf8().get_data());
+}
+
+Error WebRTCPeerGDNative::poll() {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->poll(interface->data);
+}
+
+void WebRTCPeerGDNative::set_write_mode(WriteMode p_mode) {
+	ERR_FAIL_COND(interface == NULL);
+	interface->set_write_mode(interface->data, p_mode);
+}
+
+WebRTCPeer::WriteMode WebRTCPeerGDNative::get_write_mode() const {
+	ERR_FAIL_COND_V(interface == NULL, WRITE_MODE_BINARY);
+	return (WriteMode)interface->get_write_mode(interface->data);
+}
+
+bool WebRTCPeerGDNative::was_string_packet() const {
+	ERR_FAIL_COND_V(interface == NULL, false);
+	return interface->was_string_packet(interface->data);
+}
+
+WebRTCPeer::ConnectionState WebRTCPeerGDNative::get_connection_state() const {
+	ERR_FAIL_COND_V(interface == NULL, STATE_DISCONNECTED);
+	return STATE_DISCONNECTED;
+}
+
+Error WebRTCPeerGDNative::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->get_packet(interface->data, r_buffer, &r_buffer_size);
+}
+
+Error WebRTCPeerGDNative::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
+	ERR_FAIL_COND_V(interface == NULL, ERR_UNCONFIGURED);
+	return (Error)interface->put_packet(interface->data, p_buffer, p_buffer_size);
+}
+
+int WebRTCPeerGDNative::get_max_packet_size() const {
+	ERR_FAIL_COND_V(interface == NULL, 0);
+	return interface->get_max_packet_size(interface->data);
+}
+
+int WebRTCPeerGDNative::get_available_packet_count() const {
+	ERR_FAIL_COND_V(interface == NULL, 0);
+	return interface->get_available_packet_count(interface->data);
+}
+
+void WebRTCPeerGDNative::set_native_webrtc_peer(const godot_net_webrtc_peer *p_impl) {
+	interface = p_impl;
+}
+
+#endif // WEBRTC_GDNATIVE_ENABLED
diff --git a/modules/webrtc/webrtc_peer_gdnative.h b/modules/webrtc/webrtc_peer_gdnative.h
new file mode 100644
index 0000000000..6786cec8ea
--- /dev/null
+++ b/modules/webrtc/webrtc_peer_gdnative.h
@@ -0,0 +1,78 @@
+/*************************************************************************/
+/*  webrtc_peer_gdnative.h                                               */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifdef WEBRTC_GDNATIVE_ENABLED
+
+#ifndef WEBRTC_PEER_GDNATIVE_H
+#define WEBRTC_PEER_GDNATIVE_H
+
+#include "modules/gdnative/include/net/godot_net.h"
+#include "webrtc_peer.h"
+
+class WebRTCPeerGDNative : public WebRTCPeer {
+	GDCLASS(WebRTCPeerGDNative, WebRTCPeer);
+
+protected:
+	static void _bind_methods();
+
+private:
+	const godot_net_webrtc_peer *interface;
+
+public:
+	static WebRTCPeer *_create() { return memnew(WebRTCPeerGDNative); }
+	static void make_default() { WebRTCPeer::_create = WebRTCPeerGDNative::_create; }
+
+	void set_native_webrtc_peer(const godot_net_webrtc_peer *p_impl);
+
+	virtual void set_write_mode(WriteMode mode);
+	virtual WriteMode get_write_mode() const;
+	virtual bool was_string_packet() const;
+	virtual ConnectionState get_connection_state() const;
+
+	virtual Error create_offer();
+	virtual Error set_remote_description(String type, String sdp);
+	virtual Error set_local_description(String type, String sdp);
+	virtual Error add_ice_candidate(String sdpMidName, int sdpMlineIndexName, String sdpName);
+	virtual Error poll();
+
+	/** Inherited from PacketPeer: **/
+	virtual int get_available_packet_count() const;
+	virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size); ///< buffer is GONE after next get_packet
+	virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
+
+	virtual int get_max_packet_size() const;
+
+	WebRTCPeerGDNative();
+	~WebRTCPeerGDNative();
+};
+
+#endif // WEBRTC_PEER_GDNATIVE_H
+
+#endif // WEBRTC_GDNATIVE_ENABLED
diff --git a/modules/webrtc/webrtc_peer_js.cpp b/modules/webrtc/webrtc_peer_js.cpp
new file mode 100644
index 0000000000..1282e075ab
--- /dev/null
+++ b/modules/webrtc/webrtc_peer_js.cpp
@@ -0,0 +1,455 @@
+/*************************************************************************/
+/*  webrtc_peer_js.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifdef JAVASCRIPT_ENABLED
+
+#include "webrtc_peer_js.h"
+#include "emscripten.h"
+
+extern "C" {
+EMSCRIPTEN_KEEPALIVE void _emrtc_on_ice_candidate(void *obj, char *p_MidName, int p_MlineIndexName, char *p_sdpName) {
+	WebRTCPeerJS *peer = static_cast<WebRTCPeerJS *>(obj);
+	peer->emit_signal("new_ice_candidate", String(p_MidName), p_MlineIndexName, String(p_sdpName));
+}
+
+EMSCRIPTEN_KEEPALIVE void _emrtc_offer_created(void *obj, char *p_type, char *p_offer) {
+	WebRTCPeerJS *peer = static_cast<WebRTCPeerJS *>(obj);
+	peer->emit_signal("offer_created", String(p_type), String(p_offer));
+}
+
+EMSCRIPTEN_KEEPALIVE void _emrtc_on_error(void *obj) {
+	WebRTCPeerJS *peer = static_cast<WebRTCPeerJS *>(obj);
+	peer->_on_error();
+}
+
+EMSCRIPTEN_KEEPALIVE void _emrtc_on_open(void *obj) {
+	WebRTCPeerJS *peer = static_cast<WebRTCPeerJS *>(obj);
+	peer->_on_open();
+}
+
+EMSCRIPTEN_KEEPALIVE void _emrtc_on_close(void *obj) {
+	WebRTCPeerJS *peer = static_cast<WebRTCPeerJS *>(obj);
+	peer->_on_close();
+}
+
+EMSCRIPTEN_KEEPALIVE void _emrtc_on_message(void *obj, uint8_t *p_data, uint32_t p_size, bool p_is_string) {
+	WebRTCPeerJS *peer = static_cast<WebRTCPeerJS *>(obj);
+	peer->_on_message(p_data, p_size, p_is_string);
+}
+
+EMSCRIPTEN_KEEPALIVE void _emrtc_bind_channel(int p_id) {
+	/* clang-format off */
+	EM_ASM({
+		if (!Module.IDHandler.has($0)) {
+			return; // Godot Object is gone!
+		}
+		var dict = Module.IDHandler.get($0);
+		var channel = dict["channel"];
+		var c_ptr = dict["ptr"];
+
+		channel.onopen = function (evt) {
+			ccall("_emrtc_on_open",
+				"void",
+				["number"],
+				[c_ptr]
+			);
+		};
+		channel.onclose = function (evt) {
+			ccall("_emrtc_on_close",
+				"void",
+				["number"],
+				[c_ptr]
+			);
+		};
+		channel.onerror = function (evt) {
+			ccall("_emrtc_on_error",
+				"void",
+				["number"],
+				[c_ptr]
+			);
+		};
+
+		channel.binaryType = "arraybuffer";
+		channel.onmessage = function(event) {
+			var buffer;
+			var is_string = 0;
+			if (event.data instanceof ArrayBuffer) {
+
+				buffer = new Uint8Array(event.data);
+
+			} else if (event.data instanceof Blob) {
+
+				alert("Blob type not supported");
+				return;
+
+			} else if (typeof event.data === "string") {
+
+				is_string = 1;
+				var enc = new TextEncoder("utf-8");
+				buffer = new Uint8Array(enc.encode(event.data));
+
+			} else {
+
+				alert("Unknown message type");
+				return;
+
+			}
+			var len = buffer.length*buffer.BYTES_PER_ELEMENT;
+			var out = Module._malloc(len);
+			Module.HEAPU8.set(buffer, out);
+			ccall("_emrtc_on_message",
+				"void",
+				["number", "number", "number", "number"],
+				[c_ptr, out, len, is_string]
+			);
+			Module._free(out);
+		}
+	}, p_id);
+	/* clang-format on */
+}
+}
+
+void _emrtc_create_pc(int p_id) {
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		var c_ptr = dict["ptr"];
+		// Setup local connaction
+		var conn = new RTCPeerConnection();
+		conn.onicecandidate = function(event) {
+			if (!Module.IDHandler.get($0)) return;
+			if (!event.candidate) return;
+
+			var c = event.candidate;
+			// should emit on ice candidate
+			ccall("_emrtc_on_ice_candidate",
+				"void",
+				["number", "string", "number", "string"],
+				[c_ptr, c.sdpMid, c.sdpMLineIndex, c.candidate]
+			);
+		};
+		conn.ondatachannel = function (evt) {
+			var dict = Module.IDHandler.get($0);
+			if (!dict || dict["channel"]) {
+				return;
+			}
+			var channel = evt.channel;
+			dict["channel"] = channel;
+			ccall("_emrtc_bind_channel",
+				"void",
+				["number"],
+				[$0]
+			);
+		};
+		dict["conn"] = conn;
+	}, p_id);
+	/* clang-format on */
+}
+
+void WebRTCPeerJS::_on_open() {
+	in_buffer.resize(16);
+	_conn_state = STATE_CONNECTED;
+}
+
+void WebRTCPeerJS::_on_close() {
+	close();
+}
+
+void WebRTCPeerJS::_on_error() {
+	close();
+	_conn_state = STATE_FAILED;
+}
+
+void WebRTCPeerJS::_on_message(uint8_t *p_data, uint32_t p_size, bool p_is_string) {
+	if (in_buffer.space_left() < p_size + 5) {
+		ERR_EXPLAIN("Buffer full! Dropping data");
+		ERR_FAIL();
+	}
+
+	uint8_t is_string = p_is_string ? 1 : 0;
+	in_buffer.write((uint8_t *)&p_size, 4);
+	in_buffer.write((uint8_t *)&is_string, 1);
+	in_buffer.write(p_data, p_size);
+	queue_count++;
+}
+
+void WebRTCPeerJS::close() {
+	in_buffer.resize(0);
+	queue_count = 0;
+	_was_string = false;
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		if (!dict) return;
+		if (dict["channel"]) {
+			dict["channel"].close();
+			dict["channel"] = null;
+		}
+		if (dict["conn"]) {
+			dict["conn"].close();
+		}
+	}, _js_id);
+	/* clang-format on */
+	_conn_state = STATE_CLOSED;
+}
+
+Error WebRTCPeerJS::create_offer() {
+	ERR_FAIL_COND_V(_conn_state != STATE_NEW, FAILED);
+
+	_conn_state = STATE_CONNECTING;
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		var conn = dict["conn"];
+		var c_ptr = dict["ptr"];
+		var onError = function(error) {
+			console.log(error);
+			ccall("_emrtc_on_error",
+				"void",
+				["number"],
+				[c_ptr]
+			);
+		};
+		var onCreated = function(offer) {
+			ccall("_emrtc_offer_created",
+				"void",
+				["number", "string", "string"],
+				[c_ptr, offer.type, offer.sdp]
+			);
+		};
+
+		var channel = conn.createDataChannel("default");
+		dict["channel"] = channel;
+		ccall("_emrtc_bind_channel",
+			"void",
+			["number"],
+			[$0]
+		);
+		conn.createOffer().then(onCreated).catch(onError);
+	}, _js_id);
+	/* clang-format on */
+	return OK;
+}
+
+Error WebRTCPeerJS::set_local_description(String type, String sdp) {
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		var conn = dict["conn"];
+		var c_ptr = dict["ptr"];
+		var type = UTF8ToString($1);
+		var sdp = UTF8ToString($2);
+		var onError = function(error) {
+			console.log(error);
+			ccall("_emrtc_on_error",
+				"void",
+				["number"],
+				[c_ptr]
+			);
+		};
+		conn.setLocalDescription({
+			"sdp": sdp,
+			"type": type
+		}).catch(onError);
+	}, _js_id, type.utf8().get_data(), sdp.utf8().get_data());
+	/* clang-format on */
+	return OK;
+}
+
+Error WebRTCPeerJS::set_remote_description(String type, String sdp) {
+	if (type == "offer") {
+		ERR_FAIL_COND_V(_conn_state != STATE_NEW, FAILED);
+		_conn_state = STATE_CONNECTING;
+	}
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		var conn = dict["conn"];
+		var c_ptr = dict["ptr"];
+		var type = UTF8ToString($1);
+		var sdp = UTF8ToString($2);
+
+		var onError = function(error) {
+			console.log(error);
+			ccall("_emrtc_on_error",
+				"void",
+				["number"],
+				[c_ptr]
+			);
+		};
+		var onCreated = function(offer) {
+			ccall("_emrtc_offer_created",
+				"void",
+				["number", "string", "string"],
+				[c_ptr, offer.type, offer.sdp]
+			);
+		};
+		var onSet = function() {
+			if (type != "offer") {
+				return;
+			}
+			conn.createAnswer().then(onCreated);
+		};
+		conn.setRemoteDescription({
+			"sdp": sdp,
+			"type": type
+		}).then(onSet).catch(onError);
+	}, _js_id, type.utf8().get_data(), sdp.utf8().get_data());
+	/* clang-format on */
+	return OK;
+}
+
+Error WebRTCPeerJS::add_ice_candidate(String sdpMidName, int sdpMlineIndexName, String sdpName) {
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		var conn = dict["conn"];
+		var c_ptr = dict["ptr"];
+		var sdpMidName = UTF8ToString($1);
+		var sdpMlineIndexName = UTF8ToString($2);
+		var sdpName = UTF8ToString($3);
+		conn.addIceCandidate(new RTCIceCandidate({
+			"candidate": sdpName,
+			"sdpMid": sdpMidName,
+			"sdpMlineIndex": sdpMlineIndexName
+		}));
+	}, _js_id, sdpMidName.utf8().get_data(), sdpMlineIndexName, sdpName.utf8().get_data());
+	/* clang-format on */
+	return OK;
+}
+
+Error WebRTCPeerJS::poll() {
+	return OK;
+}
+
+WebRTCPeer::ConnectionState WebRTCPeerJS::get_connection_state() const {
+	return _conn_state;
+}
+
+int WebRTCPeerJS::get_available_packet_count() const {
+	return queue_count;
+}
+
+Error WebRTCPeerJS::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
+	ERR_FAIL_COND_V(_conn_state != STATE_CONNECTED, ERR_UNCONFIGURED);
+
+	if (queue_count == 0)
+		return ERR_UNAVAILABLE;
+
+	uint32_t to_read = 0;
+	uint32_t left = 0;
+	uint8_t is_string = 0;
+	r_buffer_size = 0;
+
+	in_buffer.read((uint8_t *)&to_read, 4);
+	--queue_count;
+	left = in_buffer.data_left();
+
+	if (left < to_read + 1) {
+		in_buffer.advance_read(left);
+		return FAILED;
+	}
+
+	in_buffer.read(&is_string, 1);
+	_was_string = is_string == 1;
+	in_buffer.read(packet_buffer, to_read);
+	*r_buffer = packet_buffer;
+	r_buffer_size = to_read;
+
+	return OK;
+}
+
+Error WebRTCPeerJS::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
+	ERR_FAIL_COND_V(_conn_state != STATE_CONNECTED, ERR_UNCONFIGURED);
+
+	int is_bin = _write_mode == WebRTCPeer::WRITE_MODE_BINARY ? 1 : 0;
+
+	/* clang-format off */
+	EM_ASM({
+		var dict = Module.IDHandler.get($0);
+		var channel = dict["channel"];
+		var bytes_array = new Uint8Array($2);
+		var i = 0;
+
+		for(i=0; i<$2; i++) {
+			bytes_array[i] = getValue($1+i, 'i8');
+		}
+
+		if ($3) {
+			channel.send(bytes_array.buffer);
+		} else {
+			var string = new TextDecoder("utf-8").decode(bytes_array);
+			channel.send(string);
+		}
+	}, _js_id, p_buffer, p_buffer_size, is_bin);
+	/* clang-format on */
+
+	return OK;
+}
+
+int WebRTCPeerJS::get_max_packet_size() const {
+	return 1200;
+}
+
+void WebRTCPeerJS::set_write_mode(WriteMode p_mode) {
+	_write_mode = p_mode;
+}
+
+WebRTCPeer::WriteMode WebRTCPeerJS::get_write_mode() const {
+	return _write_mode;
+}
+
+bool WebRTCPeerJS::was_string_packet() const {
+	return _was_string;
+}
+
+WebRTCPeerJS::WebRTCPeerJS() {
+	queue_count = 0;
+	_was_string = false;
+	_write_mode = WRITE_MODE_BINARY;
+	_conn_state = STATE_NEW;
+
+	/* clang-format off */
+	_js_id = EM_ASM_INT({
+		return Module.IDHandler.add({"conn": null, "ptr": $0, "channel": null});
+	}, this);
+	/* clang-format on */
+	_emrtc_create_pc(_js_id);
+}
+
+WebRTCPeerJS::~WebRTCPeerJS() {
+	close();
+	/* clang-format off */
+	EM_ASM({
+		Module.IDHandler.remove($0);
+	}, _js_id);
+	/* clang-format on */
+};
+#endif
diff --git a/modules/webrtc/webrtc_peer_js.h b/modules/webrtc/webrtc_peer_js.h
new file mode 100644
index 0000000000..02f0c9b55d
--- /dev/null
+++ b/modules/webrtc/webrtc_peer_js.h
@@ -0,0 +1,88 @@
+/*************************************************************************/
+/*  webrtc_peer_js.h                                                     */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef WEBRTC_PEER_JS_H
+#define WEBRTC_PEER_JS_H
+
+#ifdef JAVASCRIPT_ENABLED
+
+#include "webrtc_peer.h"
+
+class WebRTCPeerJS : public WebRTCPeer {
+
+private:
+	enum {
+		PACKET_BUFFER_SIZE = 65536 - 5 // 4 bytes for the size, 1 for for type
+	};
+
+	bool _was_string;
+	WriteMode _write_mode;
+
+	int _js_id;
+	RingBuffer<uint8_t> in_buffer;
+	int queue_count;
+	uint8_t packet_buffer[PACKET_BUFFER_SIZE];
+	ConnectionState _conn_state;
+
+public:
+	static WebRTCPeer *_create() { return memnew(WebRTCPeerJS); }
+	static void make_default() { WebRTCPeer::_create = WebRTCPeerJS::_create; }
+
+	virtual void set_write_mode(WriteMode mode);
+	virtual WriteMode get_write_mode() const;
+	virtual bool was_string_packet() const;
+	virtual ConnectionState get_connection_state() const;
+
+	virtual Error create_offer();
+	virtual Error set_remote_description(String type, String sdp);
+	virtual Error set_local_description(String type, String sdp);
+	virtual Error add_ice_candidate(String sdpMidName, int sdpMlineIndexName, String sdpName);
+	virtual Error poll();
+
+	/** Inherited from PacketPeer: **/
+	virtual int get_available_packet_count() const;
+	virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size); ///< buffer is GONE after next get_packet
+	virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
+
+	virtual int get_max_packet_size() const;
+
+	void close();
+	void _on_open();
+	void _on_close();
+	void _on_error();
+	void _on_message(uint8_t *p_data, uint32_t p_size, bool p_is_string);
+
+	WebRTCPeerJS();
+	~WebRTCPeerJS();
+};
+
+#endif
+
+#endif // WEBRTC_PEER_JS_H
diff --git a/modules/websocket/SCsub b/modules/websocket/SCsub
index 0345e533bc..d9e60eb6f1 100644
--- a/modules/websocket/SCsub
+++ b/modules/websocket/SCsub
@@ -9,90 +9,85 @@ env_lws = env_modules.Clone()
 
 if env['builtin_libwebsockets'] and not env["platform"] == "javascript": # already builtin for javascript
     thirdparty_dir = "#thirdparty/libwebsockets/"
-    helper_dir = "#thirdparty/libwebsockets/win32helpers/"
+    helper_dir = "win32helpers/"
     thirdparty_sources = [
 
-        "lib/core/adopt.c",
-        "lib/core/alloc.c",
-        "lib/core/connect.c",
-        "lib/core/context.c",
-        "lib/core/dummy-callback.c",
-        "lib/core/libwebsockets.c",
-        "lib/core/output.c",
-        "lib/core/pollfd.c",
-        "lib/core/service.c",
-
-        "lib/event-libs/poll/poll.c",
-
-        "lib/misc/base64-decode.c",
-        "lib/misc/lejp.c",
-        "lib/misc/sha-1.c",
-
-        "lib/roles/h1/ops-h1.c",
-        "lib/roles/http/header.c",
-        "lib/roles/http/client/client.c",
-        "lib/roles/http/client/client-handshake.c",
-        "lib/roles/http/server/fops-zip.c",
-        "lib/roles/http/server/lejp-conf.c",
-        "lib/roles/http/server/parsers.c",
-        "lib/roles/http/server/server.c",
-        "lib/roles/listen/ops-listen.c",
-        "lib/roles/pipe/ops-pipe.c",
-        "lib/roles/raw-skt/ops-raw-skt.c",
-        "lib/roles/raw-file/ops-raw-file.c",
-
-        "lib/roles/ws/client-ws.c",
-        "lib/roles/ws/client-parser-ws.c",
-        "lib/roles/ws/ops-ws.c",
-        "lib/roles/ws/server-ws.c",
-
-        "lib/tls/tls.c",
-        "lib/tls/tls-client.c",
-        "lib/tls/tls-server.c",
-
-        "lib/tls/mbedtls/wrapper/library/ssl_cert.c",
-        "lib/tls/mbedtls/wrapper/library/ssl_pkey.c",
-        "lib/tls/mbedtls/wrapper/library/ssl_stack.c",
-        "lib/tls/mbedtls/wrapper/library/ssl_methods.c",
-        "lib/tls/mbedtls/wrapper/library/ssl_lib.c",
-        "lib/tls/mbedtls/wrapper/library/ssl_x509.c",
-        "lib/tls/mbedtls/wrapper/platform/ssl_port.c",
-        "lib/tls/mbedtls/wrapper/platform/ssl_pm.c",
-        "lib/tls/mbedtls/lws-genhash.c",
-        "lib/tls/mbedtls/mbedtls-client.c",
-        "lib/tls/mbedtls/lws-genrsa.c",
-        "lib/tls/mbedtls/ssl.c",
-        "lib/tls/mbedtls/mbedtls-server.c"
+        "core/alloc.c",
+        "core/context.c",
+        "core/libwebsockets.c",
+        "core/output.c",
+        "core/pollfd.c",
+        "core/service.c",
+
+        "event-libs/poll/poll.c",
+
+        "misc/base64-decode.c",
+        "misc/lejp.c",
+        "misc/sha-1.c",
+
+        "roles/h1/ops-h1.c",
+        "roles/http/header.c",
+        "roles/http/client/client.c",
+        "roles/http/client/client-handshake.c",
+        "roles/http/server/fops-zip.c",
+        "roles/http/server/lejp-conf.c",
+        "roles/http/server/parsers.c",
+        "roles/http/server/server.c",
+        "roles/listen/ops-listen.c",
+        "roles/pipe/ops-pipe.c",
+        "roles/raw/ops-raw.c",
+
+        "roles/ws/client-ws.c",
+        "roles/ws/client-parser-ws.c",
+        "roles/ws/ops-ws.c",
+        "roles/ws/server-ws.c",
+
+        "tls/tls.c",
+        "tls/tls-client.c",
+        "tls/tls-server.c",
+
+        "tls/mbedtls/wrapper/library/ssl_cert.c",
+        "tls/mbedtls/wrapper/library/ssl_pkey.c",
+        "tls/mbedtls/wrapper/library/ssl_stack.c",
+        "tls/mbedtls/wrapper/library/ssl_methods.c",
+        "tls/mbedtls/wrapper/library/ssl_lib.c",
+        "tls/mbedtls/wrapper/library/ssl_x509.c",
+        "tls/mbedtls/wrapper/platform/ssl_port.c",
+        "tls/mbedtls/wrapper/platform/ssl_pm.c",
+        "tls/mbedtls/lws-genhash.c",
+        "tls/mbedtls/mbedtls-client.c",
+        "tls/mbedtls/lws-genrsa.c",
+        "tls/mbedtls/ssl.c",
+        "tls/mbedtls/mbedtls-server.c"
     ]
 
     if env["platform"] == "android": # Builtin getifaddrs
-        thirdparty_sources += ["lib/misc/getifaddrs.c"]
-
-    thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
+        thirdparty_sources += ["misc/getifaddrs.c"]
 
     if env["platform"] == "windows" or env["platform"] == "uwp": # Winsock
-        thirdparty_sources += Glob(thirdparty_dir + "lib/plat/windows/*.c") + [helper_dir + src for src in ["getopt.c", "getopt_long.c", "gettimeofday.c"]]
+        thirdparty_sources += ["plat/lws-plat-win.c", helper_dir + "getopt.c", helper_dir + "getopt_long.c", helper_dir + "gettimeofday.c"]
     else: # Unix socket
-        thirdparty_sources += Glob(thirdparty_dir + "lib/plat/unix/*.c")
+        thirdparty_sources += ["plat/lws-plat-unix.c"]
+
+    thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_lws.Append(CPPPATH=[thirdparty_dir + 'include/'])
+    env_lws.Prepend(CPPPATH=[thirdparty_dir])
 
     if env['builtin_mbedtls']:
         mbedtls_includes = "#thirdparty/mbedtls/include"
         env_lws.Prepend(CPPPATH=[mbedtls_includes])
 
-    wrapper_includes = ["#thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/" + inc for inc in ["internal", "openssl", "platform", ""]]
+    wrapper_includes = ["#thirdparty/libwebsockets/tls/mbedtls/wrapper/include/" + inc for inc in ["internal", "openssl", "platform", ""]]
     env_lws.Prepend(CPPPATH=wrapper_includes)
 
     if env["platform"] == "windows" or env["platform"] == "uwp":
-        env_lws.Append(CPPPATH=[helper_dir])
+        env_lws.Prepend(CPPPATH=[thirdparty_dir + helper_dir])
 
     if env["platform"] == "uwp":
-        env_lws.Append(CCFLAGS=["/DLWS_MINGW_SUPPORT"])
+        env_lws.Append(CPPFLAGS=["/DLWS_MINGW_SUPPORT"])
 
     env_thirdparty = env_lws.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.Append(CPPPATH=[thirdparty_dir + 'lib/'])
     env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
 
 env_lws.add_source_files(env.modules_sources, "*.cpp")
diff --git a/modules/websocket/doc_classes/WebSocketClient.xml b/modules/websocket/doc_classes/WebSocketClient.xml
index ffb6d40e30..26122dfad4 100644
--- a/modules/websocket/doc_classes/WebSocketClient.xml
+++ b/modules/websocket/doc_classes/WebSocketClient.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WebSocketClient" inherits="WebSocketMultiplayerPeer" category="Core" version="3.1">
+<class name="WebSocketClient" inherits="WebSocketMultiplayerPeer" category="Core" version="3.2">
 	<brief_description>
 		A WebSocket client implementation
 	</brief_description>
@@ -11,8 +11,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="connect_to_url">
 			<return type="int" enum="Error">
diff --git a/modules/websocket/doc_classes/WebSocketMultiplayerPeer.xml b/modules/websocket/doc_classes/WebSocketMultiplayerPeer.xml
index 1a841f85ed..8548d21323 100644
--- a/modules/websocket/doc_classes/WebSocketMultiplayerPeer.xml
+++ b/modules/websocket/doc_classes/WebSocketMultiplayerPeer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WebSocketMultiplayerPeer" inherits="NetworkedMultiplayerPeer" category="Core" version="3.1">
+<class name="WebSocketMultiplayerPeer" inherits="NetworkedMultiplayerPeer" category="Core" version="3.2">
 	<brief_description>
 		Base class for WebSocket server and client.
 	</brief_description>
@@ -8,8 +8,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="get_peer" qualifiers="const">
 			<return type="WebSocketPeer">
diff --git a/modules/websocket/doc_classes/WebSocketPeer.xml b/modules/websocket/doc_classes/WebSocketPeer.xml
index 5dda012899..8a6868d311 100644
--- a/modules/websocket/doc_classes/WebSocketPeer.xml
+++ b/modules/websocket/doc_classes/WebSocketPeer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WebSocketPeer" inherits="PacketPeer" category="Core" version="3.1">
+<class name="WebSocketPeer" inherits="PacketPeer" category="Core" version="3.2">
 	<brief_description>
 		A class representing a specific WebSocket connection.
 	</brief_description>
@@ -9,8 +9,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="close">
 			<return type="void">
diff --git a/modules/websocket/doc_classes/WebSocketServer.xml b/modules/websocket/doc_classes/WebSocketServer.xml
index 2932bf782a..51945d410a 100644
--- a/modules/websocket/doc_classes/WebSocketServer.xml
+++ b/modules/websocket/doc_classes/WebSocketServer.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="WebSocketServer" inherits="WebSocketMultiplayerPeer" category="Core" version="3.1">
+<class name="WebSocketServer" inherits="WebSocketMultiplayerPeer" category="Core" version="3.2">
 	<brief_description>
 		A WebSocket server implementation
 	</brief_description>
@@ -10,8 +10,6 @@
 	</description>
 	<tutorials>
 	</tutorials>
-	<demos>
-	</demos>
 	<methods>
 		<method name="disconnect_peer">
 			<return type="void">
diff --git a/modules/websocket/lws_client.cpp b/modules/websocket/lws_client.cpp
index d09558ab22..08df76293b 100644
--- a/modules/websocket/lws_client.cpp
+++ b/modules/websocket/lws_client.cpp
@@ -32,11 +32,10 @@
 
 #include "lws_client.h"
 #include "core/io/ip.h"
-#include "core/io/stream_peer_ssl.h"
 #include "core/project_settings.h"
 #if defined(LWS_OPENSSL_SUPPORT)
-// Not openssl, just the mbedtls wrapper
-#include "openssl/ssl.h"
+#include "core/io/stream_peer_ssl.h"
+#include "tls/mbedtls/wrapper/include/openssl/ssl.h"
 #endif
 
 Error LWSClient::connect_to_host(String p_host, String p_path, uint16_t p_port, bool p_ssl, PoolVector<String> p_protocols) {
diff --git a/modules/websocket/packet_buffer.h b/modules/websocket/packet_buffer.h
index 47786a87a6..057fecfb56 100644
--- a/modules/websocket/packet_buffer.h
+++ b/modules/websocket/packet_buffer.h
@@ -59,7 +59,7 @@ public:
 			ERR_FAIL_V(ERR_OUT_OF_MEMORY);
 		}
 #else
-		ERR_FAIL_COND_V(p_payload && _payload.space_left() < p_size, ERR_OUT_OF_MEMORY);
+		ERR_FAIL_COND_V(p_payload && (uint32_t)_payload.space_left() < p_size, ERR_OUT_OF_MEMORY);
 		ERR_FAIL_COND_V(p_info && _packets.space_left() < 1, ERR_OUT_OF_MEMORY);
 #endif
 
diff --git a/modules/websocket/register_types.cpp b/modules/websocket/register_types.cpp
index ed6cc5638e..39bf3de982 100644
--- a/modules/websocket/register_types.cpp
+++ b/modules/websocket/register_types.cpp
@@ -60,25 +60,6 @@ void register_websocket_types() {
 	_SET_HINT(WSS_OUT_PKT, 1024, 16384);
 
 #ifdef JAVASCRIPT_ENABLED
-	EM_ASM({
-		var IDHandler = {};
-		IDHandler["ids"] = {};
-		IDHandler["has"] = function(id) {
-			return IDHandler.ids.hasOwnProperty(id);
-		};
-		IDHandler["add"] = function(obj) {
-			var id = crypto.getRandomValues(new Int32Array(32))[0];
-			IDHandler.ids[id] = obj;
-			return id;
-		};
-		IDHandler["get"] = function(id) {
-			return IDHandler.ids[id];
-		};
-		IDHandler["remove"] = function(id) {
-			delete IDHandler.ids[id];
-		};
-		Module["IDHandler"] = IDHandler;
-	});
 	EMWSPeer::make_default();
 	EMWSClient::make_default();
 	EMWSServer::make_default();
diff --git a/modules/xatlas_unwrap/SCsub b/modules/xatlas_unwrap/SCsub
index ad364d5aaf..50e3cb1551 100644
--- a/modules/xatlas_unwrap/SCsub
+++ b/modules/xatlas_unwrap/SCsub
@@ -1,7 +1,5 @@
 #!/usr/bin/env python
 
-import platform
-
 Import('env')
 Import('env_modules')
 
@@ -15,29 +13,12 @@ if env['builtin_xatlas']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env_xatlas_unwrap.Append(CPPPATH=[thirdparty_dir])
+    env_xatlas_unwrap.Prepend(CPPPATH=[thirdparty_dir])
 
     # upstream uses c++11
     if (not env.msvc):
         env_xatlas_unwrap.Append(CXXFLAGS="-std=c++11")
 
-    if env["platform"] == 'x11':
-        # if not specifically one of the *BSD, then use LINUX as default
-        if platform.system() == "FreeBSD":
-            env_xatlas_unwrap.Append(CCFLAGS=["-DNV_OS_FREEBSD", "-DPOSH_COMPILER_GCC"])
-        elif platform.system() == "OpenBSD":
-            env_xatlas_unwrap.Append(CCFLAGS=["-DNV_OS_OPENBSD", "-DPOSH_COMPILER_GCC"])
-        else:
-            env_xatlas_unwrap.Append(CCFLAGS=["-DNV_OS_LINUX", "-DPOSH_COMPILER_GCC"])
-    elif env["platform"] == 'osx':
-        env_xatlas_unwrap.Append(CCFLAGS=["-DNV_OS_DARWIN", "-DPOSH_COMPILER_GCC"])
-    elif env["platform"] == 'windows':
-        if env.msvc:
-            env_xatlas_unwrap.Append(CCFLAGS=["-DNV_OS_WIN32", "-DNV_CC_MSVC", "-DPOSH_COMPILER_MSVC" ])
-        else:
-            env_xatlas_unwrap.Append(CCFLAGS=["-DNV_OS_MINGW", "-DNV_CC_GNUC", "-DPOSH_COMPILER_GCC", "-U__STRICT_ANSI__"])
-            env.Append(LIBS=["dbghelp"])
-
     env_thirdparty = env_xatlas_unwrap.Clone()
     env_thirdparty.disable_warnings()
     env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
diff --git a/modules/xatlas_unwrap/config.py b/modules/xatlas_unwrap/config.py
index 2dda5db7e0..bd092bdc16 100644
--- a/modules/xatlas_unwrap/config.py
+++ b/modules/xatlas_unwrap/config.py
@@ -1,5 +1,4 @@
 def can_build(env, platform):
-    #return False #xatlas is buggy
     return (env['tools'] and platform not in ["android", "ios"])
 
 def configure(env):
diff --git a/platform/android/SCsub b/platform/android/SCsub
index 47d5035224..22ed476c6f 100644
--- a/platform/android/SCsub
+++ b/platform/android/SCsub
@@ -2,7 +2,6 @@
 
 Import('env')
 
-import shutil
 from compat import open_utf8
 from distutils.version import LooseVersion
 from detect import get_ndk_version
@@ -16,8 +15,10 @@ android_files = [
     'dir_access_jandroid.cpp',
     'thread_jandroid.cpp',
     'audio_driver_jandroid.cpp',
-    'java_glue.cpp',
+    'java_godot_lib_jni.cpp',
     'java_class_wrapper.cpp',
+    'java_godot_wrapper.cpp',
+    'java_godot_io_wrapper.cpp',
 #    'power_android.cpp'
 ]
 
@@ -33,114 +34,6 @@ env_thirdparty = env_android.Clone()
 env_thirdparty.disable_warnings()
 android_objects.append(env_thirdparty.SharedObject('#thirdparty/misc/ifaddrs-android.cc'))
 
-abspath = env.Dir(".").abspath
-
-with open_utf8(abspath + "/build.gradle.template", "r") as gradle_basein:
-	gradle_text = gradle_basein.read()
-
-gradle_maven_flat_text = ""
-if len(env.android_flat_dirs) > 0:
-    gradle_maven_flat_text += "flatDir {\n"
-    gradle_maven_flat_text += "\tdirs "
-    for x in env.android_flat_dirs:
-        gradle_maven_flat_text += "'" + x + "',"
-
-    gradle_maven_flat_text = gradle_maven_flat_text[:-1]
-    gradle_maven_flat_text += "\n\t}\n"
-
-gradle_maven_repos_text = ""
-gradle_maven_repos_text += gradle_maven_flat_text
-
-if len(env.android_maven_repos) > 0:
-    gradle_maven_repos_text += ""
-    for x in env.android_maven_repos:
-        gradle_maven_repos_text += "\tmaven {\n"
-        gradle_maven_repos_text += "\t" + x + "\n"
-        gradle_maven_repos_text += "\t}\n"
-
-gradle_maven_dependencies_text = ""
-
-for x in env.android_dependencies:
-    gradle_maven_dependencies_text += x + "\n\t"
-
-gradle_java_dirs_text = ""
-
-for x in env.android_java_dirs:
-    gradle_java_dirs_text += ",'" + x.replace("\\", "/") + "'"
-
-gradle_plugins = ""
-for x in env.android_gradle_plugins:
-	gradle_plugins += "apply plugin: \"" + x + "\"\n"
-
-gradle_classpath = ""
-for x in env.android_gradle_classpath:
-	gradle_classpath += "\t\tclasspath \"" + x + "\"\n"
-
-gradle_res_dirs_text = ""
-
-for x in env.android_res_dirs:
-    gradle_res_dirs_text += ",'" + x.replace("\\", "/") + "'"
-
-gradle_aidl_dirs_text = ""
-
-for x in env.android_aidl_dirs:
-    gradle_aidl_dirs_text += ",'" + x.replace("\\", "/") + "'"
-
-gradle_jni_dirs_text = ""
-
-for x in env.android_jni_dirs:
-    gradle_jni_dirs_text += ",'" + x.replace("\\", "/") + "'"
-
-gradle_asset_dirs_text = ""
-
-for x in env.android_asset_dirs:
-    gradle_asset_dirs_text += ",'" + x.replace("\\", "/") + "'"
-
-gradle_default_config_text = ""
-
-minSdk = 18
-targetSdk = 28
-
-for x in env.android_default_config:
-    if x.startswith("minSdkVersion") and int(x.split(" ")[-1]) < minSdk:
-        x = "minSdkVersion " + str(minSdk)
-    if x.startswith("targetSdkVersion") and int(x.split(" ")[-1]) > targetSdk:
-        x = "targetSdkVersion " + str(targetSdk)
-
-    gradle_default_config_text += x + "\n\t\t"
-
-if "minSdkVersion" not in gradle_default_config_text:
-    gradle_default_config_text += ("minSdkVersion " + str(minSdk) + "\n\t\t")
-
-if "targetSdkVersion" not in gradle_default_config_text:
-    gradle_default_config_text += ("targetSdkVersion " + str(targetSdk) + "\n\t\t")
-
-gradle_text = gradle_text.replace("$$GRADLE_REPOSITORY_URLS$$", gradle_maven_repos_text)
-gradle_text = gradle_text.replace("$$GRADLE_DEPENDENCIES$$", gradle_maven_dependencies_text)
-gradle_text = gradle_text.replace("$$GRADLE_JAVA_DIRS$$", gradle_java_dirs_text)
-gradle_text = gradle_text.replace("$$GRADLE_RES_DIRS$$", gradle_res_dirs_text)
-gradle_text = gradle_text.replace("$$GRADLE_ASSET_DIRS$$", gradle_asset_dirs_text)
-gradle_text = gradle_text.replace("$$GRADLE_AIDL_DIRS$$", gradle_aidl_dirs_text)
-gradle_text = gradle_text.replace("$$GRADLE_JNI_DIRS$$", gradle_jni_dirs_text)
-gradle_text = gradle_text.replace("$$GRADLE_DEFAULT_CONFIG$$", gradle_default_config_text)
-gradle_text = gradle_text.replace("$$GRADLE_PLUGINS$$", gradle_plugins)
-gradle_text = gradle_text.replace("$$GRADLE_CLASSPATH$$", gradle_classpath)
-
-with open_utf8(abspath + "/java/build.gradle", "w") as gradle_baseout:
-	gradle_baseout.write(gradle_text)
-
-
-with open_utf8(abspath + "/AndroidManifest.xml.template", "r") as pp_basein:
-	manifest = pp_basein.read()
-
-manifest = manifest.replace("$$ADD_APPLICATION_CHUNKS$$", env.android_manifest_chunk)
-manifest = manifest.replace("$$ADD_PERMISSION_CHUNKS$$", env.android_permission_chunk)
-manifest = manifest.replace("$$ADD_APPATTRIBUTE_CHUNKS$$", env.android_appattributes_chunk)
-
-with open_utf8(abspath + "/java/AndroidManifest.xml", "w") as pp_baseout:
-	pp_baseout.write(manifest)
-
-
 lib = env_android.add_shared_library("#bin/libgodot", [android_objects], SHLIBSUFFIX=env["SHLIBSUFFIX"])
 
 lib_arch_dir = ''
diff --git a/platform/android/audio_driver_jandroid.h b/platform/android/audio_driver_jandroid.h
index a5b49e9077..f92ef06052 100644
--- a/platform/android/audio_driver_jandroid.h
+++ b/platform/android/audio_driver_jandroid.h
@@ -33,7 +33,7 @@
 
 #include "servers/audio_server.h"
 
-#include "java_glue.h"
+#include "java_godot_lib_jni.h"
 
 class AudioDriverAndroid : public AudioDriver {
 
diff --git a/platform/android/audio_driver_opensl.cpp b/platform/android/audio_driver_opensl.cpp
index 8913950fac..1232fc7453 100644
--- a/platform/android/audio_driver_opensl.cpp
+++ b/platform/android/audio_driver_opensl.cpp
@@ -53,7 +53,7 @@ void AudioDriverOpenSL::_buffer_callback(
 	} else {
 
 		int32_t *src_buff = mixdown_buffer;
-		for (int i = 0; i < buffer_size * 2; i++) {
+		for (unsigned int i = 0; i < buffer_size * 2; i++) {
 			src_buff[i] = 0;
 		}
 	}
@@ -66,7 +66,7 @@ void AudioDriverOpenSL::_buffer_callback(
 	int16_t *ptr = (int16_t *)buffers[last_free];
 	last_free = (last_free + 1) % BUFFER_COUNT;
 
-	for (int i = 0; i < buffer_size * 2; i++) {
+	for (unsigned int i = 0; i < buffer_size * 2; i++) {
 
 		ptr[i] = src_buff[i] >> 16;
 	}
@@ -326,7 +326,7 @@ Error AudioDriverOpenSL::capture_stop() {
 
 int AudioDriverOpenSL::get_mix_rate() const {
 
-	return 44100;
+	return 44100; // hardcoded for Android, as selected by SL_SAMPLINGRATE_44_1
 }
 
 AudioDriver::SpeakerMode AudioDriverOpenSL::get_speaker_mode() const {
diff --git a/platform/android/detect.py b/platform/android/detect.py
index 80cda68a9e..ea70fefbc5 100644
--- a/platform/android/detect.py
+++ b/platform/android/detect.py
@@ -1,6 +1,5 @@
 import os
 import sys
-import string
 import platform
 from distutils.version import LooseVersion
 
@@ -151,19 +150,21 @@ def configure(env):
     if (env["target"].startswith("release")):
         if (env["optimize"] == "speed"): #optimize for speed (default)
             env.Append(LINKFLAGS=['-O2'])
-            env.Append(CPPFLAGS=['-O2', '-DNDEBUG', '-fomit-frame-pointer'])
+            env.Append(CCFLAGS=['-O2', '-fomit-frame-pointer'])
+            env.Append(CPPFLAGS=['-DNDEBUG'])
         else: #optimize for size
-            env.Append(CPPFLAGS=['-Os', '-DNDEBUG'])
+            env.Append(CCFLAGS=['-Os'])
+            env.Append(CPPFLAGS=['-DNDEBUG'])
             env.Append(LINKFLAGS=['-Os'])
 
         if (can_vectorize):
-            env.Append(CPPFLAGS=['-ftree-vectorize'])
+            env.Append(CCFLAGS=['-ftree-vectorize'])
         if (env["target"] == "release_debug"):
             env.Append(CPPFLAGS=['-DDEBUG_ENABLED'])
     elif (env["target"] == "debug"):
         env.Append(LINKFLAGS=['-O0'])
-        env.Append(CPPFLAGS=['-O0', '-D_DEBUG', '-UNDEBUG', '-DDEBUG_ENABLED',
-                             '-DDEBUG_MEMORY_ENABLED', '-g', '-fno-limit-debug-info'])
+        env.Append(CCFLAGS=['-O0', '-g', '-fno-limit-debug-info'])
+        env.Append(CPPFLAGS=['-D_DEBUG', '-UNDEBUG', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
 
     ## Compiler configuration
 
@@ -217,15 +218,16 @@ def configure(env):
     if env['android_stl']:
         env.Append(CPPFLAGS=["-isystem", env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/llvm-libc++/include"])
         env.Append(CPPFLAGS=["-isystem", env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/llvm-libc++abi/include"])
-        env.Append(CXXFLAGS=['-frtti',"-std=gnu++14"])
+        env.Append(CXXFLAGS=['-frtti', "-std=gnu++14"])
     else:
-        env.Append(CXXFLAGS=['-fno-rtti', '-fno-exceptions', '-DNO_SAFE_CAST'])
+        env.Append(CXXFLAGS=['-fno-rtti', '-fno-exceptions'])
+        env.Append(CPPFLAGS=['-DNO_SAFE_CAST'])
 
     ndk_version = get_ndk_version(env["ANDROID_NDK_ROOT"])
     if ndk_version != None and LooseVersion(ndk_version) >= LooseVersion("15.0.4075724"):
         print("Using NDK unified headers")
         sysroot = env["ANDROID_NDK_ROOT"] + "/sysroot"
-        env.Append(CPPFLAGS=["--sysroot="+sysroot])
+        env.Append(CPPFLAGS=["--sysroot=" + sysroot])
         env.Append(CPPFLAGS=["-isystem", sysroot + "/usr/include/" + abi_subpath])
         env.Append(CPPFLAGS=["-isystem", env["ANDROID_NDK_ROOT"] + "/sources/android/support/include"])
         # For unified headers this define has to be set manually
@@ -234,48 +236,51 @@ def configure(env):
         print("Using NDK deprecated headers")
         env.Append(CPPFLAGS=["-isystem", lib_sysroot + "/usr/include"])
 
-    env.Append(CPPFLAGS='-fpic -ffunction-sections -funwind-tables -fstack-protector-strong -fvisibility=hidden -fno-strict-aliasing'.split())
+    env.Append(CCFLAGS='-fpic -ffunction-sections -funwind-tables -fstack-protector-strong -fvisibility=hidden -fno-strict-aliasing'.split())
     env.Append(CPPFLAGS='-DNO_STATVFS -DGLES_ENABLED'.split())
 
     env['neon_enabled'] = False
     if env['android_arch'] == 'x86':
         target_opts = ['-target', 'i686-none-linux-android']
         # The NDK adds this if targeting API < 21, so we can drop it when Godot targets it at least
-        env.Append(CPPFLAGS=['-mstackrealign'])
+        env.Append(CCFLAGS=['-mstackrealign'])
 
     elif env['android_arch'] == 'x86_64':
         target_opts = ['-target', 'x86_64-none-linux-android']
 
     elif env["android_arch"] == "armv6":
         target_opts = ['-target', 'armv6-none-linux-androideabi']
-        env.Append(CPPFLAGS='-D__ARM_ARCH_6__ -march=armv6 -mfpu=vfp -mfloat-abi=softfp'.split())
+        env.Append(CCFLAGS='-march=armv6 -mfpu=vfp -mfloat-abi=softfp'.split())
+        env.Append(CPPFLAGS=['-D__ARM_ARCH_6__'])
 
     elif env["android_arch"] == "armv7":
         target_opts = ['-target', 'armv7-none-linux-androideabi']
-        env.Append(CPPFLAGS='-D__ARM_ARCH_7__ -D__ARM_ARCH_7A__ -march=armv7-a -mfloat-abi=softfp'.split())
+        env.Append(CCFLAGS='-march=armv7-a -mfloat-abi=softfp'.split())
+        env.Append(CPPFLAGS='-D__ARM_ARCH_7__ -D__ARM_ARCH_7A__'.split())
         if env['android_neon']:
             env['neon_enabled'] = True
-            env.Append(CPPFLAGS=['-mfpu=neon', '-D__ARM_NEON__'])
+            env.Append(CCFLAGS=['-mfpu=neon'])
+            env.Append(CPPFLAGS=['-D__ARM_NEON__'])
         else:
-            env.Append(CPPFLAGS=['-mfpu=vfpv3-d16'])
+            env.Append(CCFLAGS=['-mfpu=vfpv3-d16'])
 
     elif env["android_arch"] == "arm64v8":
         target_opts = ['-target', 'aarch64-none-linux-android']
+        env.Append(CCFLAGS=['-mfix-cortex-a53-835769'])
         env.Append(CPPFLAGS=['-D__ARM_ARCH_8A__'])
-        env.Append(CPPFLAGS=['-mfix-cortex-a53-835769'])
 
-    env.Append(CPPFLAGS=target_opts)
-    env.Append(CPPFLAGS=common_opts)
+    env.Append(CCFLAGS=target_opts)
+    env.Append(CCFLAGS=common_opts)
 
     ## Link flags
     if ndk_version != None and LooseVersion(ndk_version) >= LooseVersion("15.0.4075724"):
         if LooseVersion(ndk_version) >= LooseVersion("17.1.4828580"):
-            env.Append(LINKFLAGS=['-Wl,--exclude-libs,libgcc.a','-Wl,--exclude-libs,libatomic.a','-nostdlib++'])
+            env.Append(LINKFLAGS=['-Wl,--exclude-libs,libgcc.a', '-Wl,--exclude-libs,libatomic.a', '-nostdlib++'])
         else:
-            env.Append(LINKFLAGS=[env["ANDROID_NDK_ROOT"] +"/sources/cxx-stl/llvm-libc++/libs/"+arch_subpath+"/libandroid_support.a"])
+            env.Append(LINKFLAGS=[env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/llvm-libc++/libs/" + arch_subpath + "/libandroid_support.a"])
         env.Append(LINKFLAGS=['-shared', '--sysroot=' + lib_sysroot, '-Wl,--warn-shared-textrel'])
-        env.Append(LIBPATH=[env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/llvm-libc++/libs/"+arch_subpath+"/"])
-        env.Append(LINKFLAGS=[env["ANDROID_NDK_ROOT"] +"/sources/cxx-stl/llvm-libc++/libs/"+arch_subpath+"/libc++_shared.so"])
+        env.Append(LIBPATH=[env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/llvm-libc++/libs/" + arch_subpath + "/"])
+        env.Append(LINKFLAGS=[env["ANDROID_NDK_ROOT"] +"/sources/cxx-stl/llvm-libc++/libs/" + arch_subpath + "/libc++_shared.so"])
     else:
         env.Append(LINKFLAGS=['-shared', '--sysroot=' + lib_sysroot, '-Wl,--warn-shared-textrel'])
         if mt_link:
@@ -294,9 +299,9 @@ def configure(env):
     env.Append(LIBPATH=[env["ANDROID_NDK_ROOT"] +
                         '/toolchains/' + target_subpath + '/prebuilt/' + host_subpath + '/' + abi_subpath + '/lib'])
 
-    env.Append(CPPPATH=['#platform/android'])
+    env.Prepend(CPPPATH=['#platform/android'])
     env.Append(CPPFLAGS=['-DANDROID_ENABLED', '-DUNIX_ENABLED', '-DNO_FCNTL'])
-    env.Append(LIBS=['OpenSLES', 'EGL', 'GLESv3', 'android', 'log', 'z', 'dl'])
+    env.Append(LIBS=['OpenSLES', 'EGL', 'GLESv3', 'GLESv2', 'android', 'log', 'z', 'dl'])
 
 # Return NDK version string in source.properties (adapted from the Chromium project).
 def get_ndk_version(path):
diff --git a/platform/android/dir_access_jandroid.h b/platform/android/dir_access_jandroid.h
index e7a2d5ada1..cdea93ff4c 100644
--- a/platform/android/dir_access_jandroid.h
+++ b/platform/android/dir_access_jandroid.h
@@ -32,7 +32,7 @@
 #define DIR_ACCESS_JANDROID_H
 
 #include "core/os/dir_access.h"
-#include "java_glue.h"
+#include "java_godot_lib_jni.h"
 #include <stdio.h>
 
 class DirAccessJAndroid : public DirAccess {
diff --git a/platform/android/export/export.cpp b/platform/android/export/export.cpp
index e489bce3f8..f45644f1eb 100644
--- a/platform/android/export/export.cpp
+++ b/platform/android/export/export.cpp
@@ -417,6 +417,7 @@ class EditorExportPlatformAndroid : public EditorExportPlatform {
 			name = "noname";
 
 		pname = pname.replace("$genname", name);
+
 		return pname;
 	}
 
@@ -1143,11 +1144,12 @@ public:
 		r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "one_click_deploy/clear_previous_install"), true));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_package/debug", PROPERTY_HINT_GLOBAL_FILE, "*.apk"), ""));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "custom_package/release", PROPERTY_HINT_GLOBAL_FILE, "*.apk"), ""));
+		r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "custom_package/use_custom_build"), false));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "command_line/extra_args"), ""));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "version/code", PROPERTY_HINT_RANGE, "1,4096,1,or_greater"), 1));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "version/name"), "1.0"));
-		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "package/unique_name", PROPERTY_HINT_PLACEHOLDER_TEXT, "com.example.$genname"), ""));
-		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "package/name", PROPERTY_HINT_PLACEHOLDER_TEXT, "Game Name"), ""));
+		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "package/unique_name", PROPERTY_HINT_PLACEHOLDER_TEXT, "ext.domain.name"), "org.godotengine.$genname"));
+		r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "package/name", PROPERTY_HINT_PLACEHOLDER_TEXT, "Game Name [default if blank]"), ""));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "package/signed"), true));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "screen/immersive_mode"), true));
 		r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "screen/orientation", PROPERTY_HINT_ENUM, "Landscape,Portrait"), 0));
@@ -1388,21 +1390,25 @@ public:
 	virtual bool can_export(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates) const {
 
 		String err;
-		r_missing_templates = find_export_template("android_debug.apk") == String() || find_export_template("android_release.apk") == String();
 
-		if (p_preset->get("custom_package/debug") != "") {
-			if (FileAccess::exists(p_preset->get("custom_package/debug"))) {
-				r_missing_templates = false;
-			} else {
-				err += TTR("Custom debug template not found.") + "\n";
+		if (!bool(p_preset->get("custom_package/use_custom_build"))) {
+
+			r_missing_templates = find_export_template("android_debug.apk") == String() || find_export_template("android_release.apk") == String();
+
+			if (p_preset->get("custom_package/debug") != "") {
+				if (FileAccess::exists(p_preset->get("custom_package/debug"))) {
+					r_missing_templates = false;
+				} else {
+					err += TTR("Custom debug template not found.") + "\n";
+				}
 			}
-		}
 
-		if (p_preset->get("custom_package/release") != "") {
-			if (FileAccess::exists(p_preset->get("custom_package/release"))) {
-				r_missing_templates = false;
-			} else {
-				err += TTR("Custom release template not found.") + "\n";
+			if (p_preset->get("custom_package/release") != "") {
+				if (FileAccess::exists(p_preset->get("custom_package/release"))) {
+					r_missing_templates = false;
+				} else {
+					err += TTR("Custom release template not found.") + "\n";
+				}
 			}
 		}
 
@@ -1435,6 +1441,30 @@ public:
 			}
 		}
 
+		if (bool(p_preset->get("custom_package/use_custom_build"))) {
+			String sdk_path = EditorSettings::get_singleton()->get("export/android/custom_build_sdk_path");
+			if (sdk_path == "") {
+				err += TTR("Custom build requires a valid Android SDK path in Editor Settings.") + "\n";
+				valid = false;
+			} else {
+				Error errn;
+				DirAccess *da = DirAccess::open(sdk_path.plus_file("tools"), &errn);
+				if (errn != OK) {
+					err += TTR("Invalid Android SDK path for custom build in Editor Settings.") + "\n";
+					valid = false;
+				}
+				if (da) {
+					memdelete(da);
+				}
+			}
+
+			if (!FileAccess::exists("res://android/build/build.gradle")) {
+
+				err += TTR("Android project is not installed for compiling. Install from Editor menu.") + "\n";
+				valid = false;
+			}
+		}
+
 		bool apk_expansion = p_preset->get("apk_expansion/enable");
 
 		if (apk_expansion) {
@@ -1473,6 +1503,260 @@ public:
 		return list;
 	}
 
+	void _update_custom_build_project() {
+
+		DirAccessRef da = DirAccess::open("res://android");
+
+		ERR_FAIL_COND(!da);
+		Map<String, List<String> > directory_paths;
+		Map<String, List<String> > manifest_sections;
+		Map<String, List<String> > gradle_sections;
+		da->list_dir_begin();
+		String d = da->get_next();
+		while (d != String()) {
+
+			if (!d.begins_with(".") && d != "build" && da->current_is_dir()) { //a dir and not the build dir
+				//add directories found
+				DirAccessRef ds = DirAccess::open(String("res://android").plus_file(d));
+				if (ds) {
+					ds->list_dir_begin();
+					String sd = ds->get_next();
+					while (sd != String()) {
+
+						if (!sd.begins_with(".") && ds->current_is_dir()) {
+							String key = sd.to_upper();
+							if (!directory_paths.has(key)) {
+								directory_paths[key] = List<String>();
+							}
+							String path = ProjectSettings::get_singleton()->get_resource_path().plus_file("android").plus_file(d).plus_file(sd);
+							directory_paths[key].push_back(path);
+							print_line("Add: " + sd + ":" + path);
+						}
+
+						sd = ds->get_next();
+					}
+					ds->list_dir_end();
+				}
+				//parse manifest
+				{
+					FileAccessRef f = FileAccess::open(String("res://android").plus_file(d).plus_file("AndroidManifest.conf"), FileAccess::READ);
+					if (f) {
+
+						String section;
+						while (!f->eof_reached()) {
+							String l = f->get_line();
+							String k = l.strip_edges();
+							if (k.begins_with("[")) {
+								section = k.substr(1, k.length() - 2).strip_edges().to_upper();
+								print_line("Section: " + section);
+							} else if (k != String()) {
+								if (!manifest_sections.has(section)) {
+									manifest_sections[section] = List<String>();
+								}
+								manifest_sections[section].push_back(l);
+							}
+						}
+
+						f->close();
+					}
+				}
+				//parse gradle
+				{
+					FileAccessRef f = FileAccess::open(String("res://android").plus_file(d).plus_file("gradle.conf"), FileAccess::READ);
+					if (f) {
+
+						String section;
+						while (!f->eof_reached()) {
+							String l = f->get_line().strip_edges();
+							String k = l.strip_edges();
+							if (k.begins_with("[")) {
+								section = k.substr(1, k.length() - 2).strip_edges().to_upper();
+								print_line("Section: " + section);
+							} else if (k != String()) {
+								if (!gradle_sections.has(section)) {
+									gradle_sections[section] = List<String>();
+								}
+								gradle_sections[section].push_back(l);
+							}
+						}
+					}
+				}
+			}
+			d = da->get_next();
+		}
+		da->list_dir_end();
+
+		{ //fix gradle build
+
+			String new_file;
+			{
+				FileAccessRef f = FileAccess::open("res://android/build/build.gradle", FileAccess::READ);
+				if (f) {
+
+					while (!f->eof_reached()) {
+						String l = f->get_line();
+
+						if (l.begins_with("//CHUNK_")) {
+							String text = l.replace_first("//CHUNK_", "");
+							int begin_pos = text.find("_BEGIN");
+							if (begin_pos != -1) {
+								text = text.substr(0, begin_pos);
+								text = text.to_upper(); //just in case
+
+								String end_marker = "//CHUNK_" + text + "_END";
+								size_t pos = f->get_position();
+								bool found = false;
+								while (!f->eof_reached()) {
+									l = f->get_line();
+									if (l.begins_with(end_marker)) {
+										found = true;
+										break;
+									}
+								}
+
+								new_file += "//CHUNK_" + text + "_BEGIN\n";
+
+								if (!found) {
+									ERR_PRINTS("No end marker found in build.gradle for chunk: " + text);
+									f->seek(pos);
+								} else {
+
+									//add chunk lines
+									if (gradle_sections.has(text)) {
+										for (List<String>::Element *E = gradle_sections[text].front(); E; E = E->next()) {
+											new_file += E->get() + "\n";
+										}
+									}
+									new_file += end_marker + "\n";
+								}
+							} else {
+								new_file += l + "\n"; //pass line by
+							}
+						} else if (l.begins_with("//DIR_")) {
+							String text = l.replace_first("//DIR_", "");
+							int begin_pos = text.find("_BEGIN");
+							if (begin_pos != -1) {
+								text = text.substr(0, begin_pos);
+								text = text.to_upper(); //just in case
+
+								String end_marker = "//DIR_" + text + "_END";
+								size_t pos = f->get_position();
+								bool found = false;
+								while (!f->eof_reached()) {
+									l = f->get_line();
+									if (l.begins_with(end_marker)) {
+										found = true;
+										break;
+									}
+								}
+
+								new_file += "//DIR_" + text + "_BEGIN\n";
+
+								if (!found) {
+									ERR_PRINTS("No end marker found in build.gradle for dir: " + text);
+									f->seek(pos);
+								} else {
+									//add chunk lines
+									if (directory_paths.has(text)) {
+										for (List<String>::Element *E = directory_paths[text].front(); E; E = E->next()) {
+											new_file += ",'" + E->get().replace("'", "\'") + "'";
+											new_file += "\n";
+										}
+									}
+									new_file += end_marker + "\n";
+								}
+							} else {
+								new_file += l + "\n"; //pass line by
+							}
+
+						} else {
+							new_file += l + "\n";
+						}
+					}
+				}
+			}
+
+			FileAccessRef f = FileAccess::open("res://android/build/build.gradle", FileAccess::WRITE);
+			f->store_string(new_file);
+			f->close();
+		}
+
+		{ //fix manifest
+
+			String new_file;
+			{
+				FileAccessRef f = FileAccess::open("res://android/build/AndroidManifest.xml", FileAccess::READ);
+				if (f) {
+
+					while (!f->eof_reached()) {
+						String l = f->get_line();
+
+						if (l.begins_with("<!--CHUNK_")) {
+							String text = l.replace_first("<!--CHUNK_", "");
+							int begin_pos = text.find("_BEGIN-->");
+							if (begin_pos != -1) {
+								text = text.substr(0, begin_pos);
+								text = text.to_upper(); //just in case
+
+								String end_marker = "<!--CHUNK_" + text + "_END-->";
+								size_t pos = f->get_position();
+								bool found = false;
+								while (!f->eof_reached()) {
+									l = f->get_line();
+									if (l.begins_with(end_marker)) {
+										found = true;
+										break;
+									}
+								}
+
+								new_file += "<!--CHUNK_" + text + "_BEGIN-->\n";
+
+								if (!found) {
+									ERR_PRINTS("No end marker found in AndroidManifest.conf for chunk: " + text);
+									f->seek(pos);
+								} else {
+									//add chunk lines
+									if (manifest_sections.has(text)) {
+										for (List<String>::Element *E = manifest_sections[text].front(); E; E = E->next()) {
+											new_file += E->get() + "\n";
+										}
+									}
+									new_file += end_marker + "\n";
+								}
+							} else {
+								new_file += l + "\n"; //pass line by
+							}
+
+						} else if (l.strip_edges().begins_with("<application")) {
+							String last_tag = "android:icon=\"@drawable/icon\"";
+							int last_tag_pos = l.find(last_tag);
+							if (last_tag_pos == -1) {
+								WARN_PRINTS("No adding of application tags because could not find last tag for <application: " + last_tag);
+								new_file += l + "\n";
+							} else {
+								String base = l.substr(0, last_tag_pos + last_tag.length());
+								if (manifest_sections.has("application_attribs")) {
+									for (List<String>::Element *E = manifest_sections["application_attribs"].front(); E; E = E->next()) {
+										String to_add = E->get().strip_edges();
+										base += " " + to_add + " ";
+									}
+								}
+								base += ">\n";
+								new_file += base;
+							}
+						} else {
+							new_file += l + "\n";
+						}
+					}
+				}
+			}
+
+			FileAccessRef f = FileAccess::open("res://android/build/AndroidManifest.xml", FileAccess::WRITE);
+			f->store_string(new_file);
+			f->close();
+		}
+	}
+
 	virtual Error export_project(const Ref<EditorExportPreset> &p_preset, bool p_debug, const String &p_path, int p_flags = 0) {
 
 		ExportNotifier notifier(*this, p_preset, p_debug, p_path, p_flags);
@@ -1481,21 +1765,86 @@ public:
 
 		EditorProgress ep("export", "Exporting for Android", 105);
 
-		if (p_debug)
-			src_apk = p_preset->get("custom_package/debug");
-		else
-			src_apk = p_preset->get("custom_package/release");
+		if (bool(p_preset->get("custom_package/use_custom_build"))) { //custom build
+			//re-generate build.gradle and AndroidManifest.xml
 
-		src_apk = src_apk.strip_edges();
-		if (src_apk == "") {
+			{ //test that installed build version is alright
+				FileAccessRef f = FileAccess::open("res://android/.build_version", FileAccess::READ);
+				if (!f) {
+					EditorNode::get_singleton()->show_warning(TTR("Trying to build from a custom built template, but no version info for it exists. Please reinstall from the 'Project' menu."));
+					return ERR_UNCONFIGURED;
+				}
+				String version = f->get_line().strip_edges();
+				if (version != VERSION_FULL_CONFIG) {
+					EditorNode::get_singleton()->show_warning(vformat(TTR("Android build version mismatch:\n   Template installed: %s\n   Godot Version: %s\nPlease reinstall Android build template from 'Project' menu."), version, VERSION_FULL_CONFIG));
+					return ERR_UNCONFIGURED;
+				}
+			}
+			//build project if custom build is enabled
+			String sdk_path = EDITOR_GET("export/android/custom_build_sdk_path");
+
+			ERR_FAIL_COND_V(sdk_path == "", ERR_UNCONFIGURED);
+
+			_update_custom_build_project();
+
+			OS::get_singleton()->set_environment("ANDROID_HOME", sdk_path); //set and overwrite if required
+
+			String build_command;
+#ifdef WINDOWS_ENABLED
+			build_command = "gradlew.bat";
+#else
+			build_command = "gradlew";
+#endif
+
+			String build_path = ProjectSettings::get_singleton()->get_resource_path().plus_file("android/build");
+
+			build_command = build_path.plus_file(build_command);
+
+			List<String> cmdline;
+			cmdline.push_back("build");
+			cmdline.push_back("-p");
+			cmdline.push_back(build_path);
+			/*{ used for debug
+				int ec;
+				String pipe;
+				OS::get_singleton()->execute(build_command, cmdline, true, NULL, NULL, &ec);
+				print_line("exit code: " + itos(ec));
+			}
+			*/
+			int result = EditorNode::get_singleton()->execute_and_show_output(TTR("Building Android Project (gradle)"), build_command, cmdline);
+			if (result != 0) {
+				EditorNode::get_singleton()->show_warning(TTR("Building of Android project failed, check output for the error.\nAlternatively visit docs.godotengine.org for Android build documentation."));
+				return ERR_CANT_CREATE;
+			}
 			if (p_debug) {
-				src_apk = find_export_template("android_debug.apk");
+				src_apk = build_path.plus_file("build/outputs/apk/debug/build-debug-unsigned.apk");
 			} else {
-				src_apk = find_export_template("android_release.apk");
+				src_apk = build_path.plus_file("build/outputs/apk/release/build-release-unsigned.apk");
 			}
+
+			if (!FileAccess::exists(src_apk)) {
+				EditorNode::get_singleton()->show_warning(TTR("No build apk generated at: ") + "\n" + src_apk);
+				return ERR_CANT_CREATE;
+			}
+
+		} else {
+
+			if (p_debug)
+				src_apk = p_preset->get("custom_package/debug");
+			else
+				src_apk = p_preset->get("custom_package/release");
+
+			src_apk = src_apk.strip_edges();
 			if (src_apk == "") {
-				EditorNode::add_io_error("Package not found: " + src_apk);
-				return ERR_FILE_NOT_FOUND;
+				if (p_debug) {
+					src_apk = find_export_template("android_debug.apk");
+				} else {
+					src_apk = find_export_template("android_release.apk");
+				}
+				if (src_apk == "") {
+					EditorNode::add_io_error("Package not found: " + src_apk);
+					return ERR_FILE_NOT_FOUND;
+				}
 			}
 		}
 
@@ -1515,7 +1864,6 @@ public:
 			return ERR_FILE_NOT_FOUND;
 		}
 
-		ERR_FAIL_COND_V(!pkg, ERR_CANT_OPEN);
 		int ret = unzGoToFirstFile(pkg);
 
 		zlib_filefunc_def io2 = io;
@@ -1855,7 +2203,6 @@ public:
 			return ERR_FILE_NOT_FOUND;
 		}
 
-		ERR_FAIL_COND_V(!tmp_unaligned, ERR_CANT_OPEN);
 		ret = unzGoToFirstFile(tmp_unaligned);
 
 		io2 = io;
@@ -1923,10 +2270,6 @@ public:
 		zipClose(final_apk, NULL);
 		unzClose(tmp_unaligned);
 
-		if (err) {
-			return err;
-		}
-
 		return OK;
 	}
 
@@ -1979,6 +2322,8 @@ void register_android_exporter() {
 	EDITOR_DEF("export/android/debug_keystore_user", "androiddebugkey");
 	EDITOR_DEF("export/android/debug_keystore_pass", "android");
 	EDITOR_DEF("export/android/force_system_user", false);
+	EDITOR_DEF("export/android/custom_build_sdk_path", "");
+	EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::STRING, "export/android/custom_build_sdk_path", PROPERTY_HINT_GLOBAL_DIR, "*.keystore"));
 
 	EDITOR_DEF("export/android/timestamping_authority_url", "");
 	EDITOR_DEF("export/android/shutdown_adb_on_exit", true);
diff --git a/platform/android/file_access_android.h b/platform/android/file_access_android.h
index f8d46ea5d2..b8e78627ec 100644
--- a/platform/android/file_access_android.h
+++ b/platform/android/file_access_android.h
@@ -70,6 +70,8 @@ public:
 	virtual bool file_exists(const String &p_path); ///< return true if a file exists
 
 	virtual uint64_t _get_modified_time(const String &p_file) { return 0; }
+	virtual uint32_t _get_unix_permissions(const String &p_file) { return 0; }
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) { return FAILED; }
 
 	//static void make_default();
 
diff --git a/platform/android/file_access_jandroid.h b/platform/android/file_access_jandroid.h
index 304c33ecac..9429100d65 100644
--- a/platform/android/file_access_jandroid.h
+++ b/platform/android/file_access_jandroid.h
@@ -32,7 +32,7 @@
 #define FILE_ACCESS_JANDROID_H
 
 #include "core/os/file_access.h"
-#include "java_glue.h"
+#include "java_godot_lib_jni.h"
 class FileAccessJAndroid : public FileAccess {
 
 	static jobject io;
@@ -74,6 +74,8 @@ public:
 	static void setup(jobject p_io);
 
 	virtual uint64_t _get_modified_time(const String &p_file) { return 0; }
+	virtual uint32_t _get_unix_permissions(const String &p_file) { return 0; }
+	virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) { return FAILED; }
 
 	FileAccessJAndroid();
 	~FileAccessJAndroid();
diff --git a/platform/android/AndroidManifest.xml.template b/platform/android/java/AndroidManifest.xml
index daaf847f11..613d24fbd2 100644
--- a/platform/android/AndroidManifest.xml.template
+++ b/platform/android/java/AndroidManifest.xml
@@ -11,11 +11,20 @@
                       android:largeScreens="true"
                       android:xlargeScreens="true"/>
 
+<!--glEsVersion is modified by the exporter, changing this value here has no effect-->
     <uses-feature android:glEsVersion="0x00020000" android:required="true" />
+<!--Adding custom text to manifest is fine, but do it outside the custom user and application BEGIN/ENDregions, as that gets rewritten-->
 
-$$ADD_PERMISSION_CHUNKS$$
+<!--Custom permissions XML added by add-ons. It's recommended to add them from the export preset, though-->
+<!--CHUNK_USER_PERMISSIONS_BEGIN-->
+<!--CHUNK_USER_PERMISSIONS_END-->
+
+<!--Anything in this line after the icon will be erased when doing custom build. If you want to add tags manually, do before it.-->
+    <application android:label="@string/godot_project_name_string" android:allowBackup="false" tools:ignore="GoogleAppIndexingWarning" android:icon="@drawable/icon">
+
+<!--The following values are replaced when Godot exports, modifying them here has no effect. Do theses changes in the-->
+<!--export preset. Adding new ones is fine.-->
 
-    <application android:label="@string/godot_project_name_string" android:icon="@drawable/icon" android:allowBackup="false" tools:ignore="GoogleAppIndexingWarning" $$ADD_APPATTRIBUTE_CHUNKS$$ >
         <activity android:name="org.godotengine.godot.Godot"
                   android:label="@string/godot_project_name_string"
                   android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
@@ -32,13 +41,15 @@ $$ADD_PERMISSION_CHUNKS$$
         </activity>
     <service android:name="org.godotengine.godot.GodotDownloaderService" />
 
-$$ADD_APPLICATION_CHUNKS$$
+<!--Custom application XML added by add-ons-->
+<!--CHUNK_APPLICATION_BEGIN-->
+<!--CHUNK_APPLICATION_END-->
 
     </application>
 
     <instrumentation android:icon="@drawable/icon"
                      android:label="@string/godot_project_name_string"
                      android:name="org.godotengine.godot.GodotInstrumentation"
-                     android:targetPackage="com.godot.game" />
+                     android:targetPackage="org.godotengine.game" />
 
 </manifest>
diff --git a/platform/android/build.gradle.template b/platform/android/java/build.gradle
index 2fea250061..c468277daa 100644
--- a/platform/android/build.gradle.template
+++ b/platform/android/java/build.gradle
@@ -1,12 +1,17 @@
+//Gradle project for Godot Engine Android port.
+//Do not modify code between the BEGIN/END sections, as it's autogenerated by add-ons
+
 buildscript {
 	repositories {
 		google()
 		jcenter()
-		$$GRADLE_REPOSITORY_URLS$$
+//CHUNK_BUILDSCRIPT_REPOSITORIES_BEGIN
+//CHUNK_BUILDSCRIPT_REPOSITORIES_END
 	}
 	dependencies {
 		classpath 'com.android.tools.build:gradle:3.2.1'
-		$$GRADLE_CLASSPATH$$
+//CHUNK_BUILDSCRIPT_DEPENDENCIES_BEGIN
+//CHUNK_BUILDSCRIPT_DEPENDENCIES_END
 	}
 }
 
@@ -17,13 +22,16 @@ allprojects {
 	mavenCentral()
 	google()
 	jcenter()
-	$$GRADLE_REPOSITORY_URLS$$
+//CHUNK_ALLPROJECTS_REPOSITORIES_BEGIN
+//CHUNK_ALLPROJECTS_REPOSITORIES_END
+
     }
 }
 
 dependencies {
 	implementation "com.android.support:support-core-utils:28.0.0"
-	$$GRADLE_DEPENDENCIES$$
+//CHUNK_DEPENDENCIES_BEGIN
+//CHUNK_DEPENDENCIES_END
 }
 
 android {
@@ -42,7 +50,10 @@ android {
 		exclude 'META-INF/NOTICE'
 	}
 	defaultConfig {
-		$$GRADLE_DEFAULT_CONFIG$$
+		minSdkVersion 18
+		targetSdkVersion 28
+//CHUNK_ANDROID_DEFAULTCONFIG_BEGIN
+//CHUNK_ANDROID_DEFAULTCONFIG_END
 	}
 	// Both signing and zip-aligning will be done at export time
 	buildTypes.all { buildType ->
@@ -53,36 +64,50 @@ android {
 		main {
 			manifest.srcFile 'AndroidManifest.xml'
 			java.srcDirs = ['src'
-				$$GRADLE_JAVA_DIRS$$
+//DIR_SRC_BEGIN
+//DIR_SRC_END
 			]
 			res.srcDirs = [
 				'res'
-				$$GRADLE_RES_DIRS$$
+//DIR_RES_BEGIN
+//DIR_RES_END
 			]
 			aidl.srcDirs = [
 				'aidl'
-				$$GRADLE_AIDL_DIRS$$
+//DIR_AIDL_BEGIN
+//DIR_AIDL_END
 			]
 			assets.srcDirs = [
 				'assets'
-				$$GRADLE_ASSET_DIRS$$
+//DIR_ASSETS_BEGIN
+//DIR_ASSETS_END
+
 			]
 		}
 		debug.jniLibs.srcDirs = [
 			'libs/debug'
-			$$GRADLE_JNI_DIRS$$
+//DIR_JNI_DEBUG_BEGIN
+//DIR_JNI_DEBUG_END
 		]
 		release.jniLibs.srcDirs = [
 			'libs/release'
-			$$GRADLE_JNI_DIRS$$
+//DIR_JNI_RELEASE_BEGIN
+//DIR_JNI_RELEASE_END
 		]
 	}
+// No longer used, as it's not useful for build source template
+//	applicationVariants.all { variant ->
+//		variant.outputs.all { output ->
+//			output.outputFileName = "../../../../../../../bin/android_${variant.name}.apk"
+//		}
+//	}
 
-	applicationVariants.all { variant ->
-		variant.outputs.all { output ->
-			output.outputFileName = "../../../../../../../bin/android_${variant.name}.apk"
-		}
-	}
 }
 
-$$GRADLE_PLUGINS$$
+//CHUNK_GLOBAL_BEGIN
+//CHUNK_GLOBAL_END
+
+
+
+
+
diff --git a/platform/android/java/src/org/godotengine/godot/Godot.java b/platform/android/java/src/org/godotengine/godot/Godot.java
index e42099ba0b..374d40463a 100644
--- a/platform/android/java/src/org/godotengine/godot/Godot.java
+++ b/platform/android/java/src/org/godotengine/godot/Godot.java
@@ -32,6 +32,7 @@ package org.godotengine.godot;
 
 //import android.R;
 
+import android.Manifest;
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.AlertDialog;
@@ -53,7 +54,6 @@ import android.hardware.Sensor;
 import android.hardware.SensorEvent;
 import android.hardware.SensorEventListener;
 import android.hardware.SensorManager;
-import android.Manifest;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
@@ -75,7 +75,6 @@ import android.widget.FrameLayout;
 import android.widget.ProgressBar;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
-
 import com.google.android.vending.expansion.downloader.DownloadProgressInfo;
 import com.google.android.vending.expansion.downloader.DownloaderClientMarshaller;
 import com.google.android.vending.expansion.downloader.DownloaderServiceMarshaller;
@@ -83,10 +82,6 @@ import com.google.android.vending.expansion.downloader.Helpers;
 import com.google.android.vending.expansion.downloader.IDownloaderClient;
 import com.google.android.vending.expansion.downloader.IDownloaderService;
 import com.google.android.vending.expansion.downloader.IStub;
-
-import org.godotengine.godot.input.GodotEditText;
-import org.godotengine.godot.payments.PaymentsManager;
-
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStream;
@@ -96,13 +91,15 @@ import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Locale;
-
 import javax.microedition.khronos.opengles.GL10;
+import org.godotengine.godot.input.GodotEditText;
+import org.godotengine.godot.payments.PaymentsManager;
 
 public class Godot extends Activity implements SensorEventListener, IDownloaderClient {
 
 	static final int MAX_SINGLETONS = 64;
 	static final int REQUEST_RECORD_AUDIO_PERMISSION = 1;
+	static final int REQUEST_CAMERA_PERMISSION = 2;
 	private IStub mDownloaderClientStub;
 	private IDownloaderService mRemoteService;
 	private TextView mStatusText;
@@ -429,7 +426,7 @@ public class Godot extends Activity implements SensorEventListener, IDownloaderC
 		}
 
 		io = new GodotIO(this);
-		io.unique_id = Secure.ANDROID_ID;
+		io.unique_id = Secure.getString(getContentResolver(), Secure.ANDROID_ID);
 		GodotLib.io = io;
 		mSensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
 		mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
@@ -606,6 +603,9 @@ public class Godot extends Activity implements SensorEventListener, IDownloaderC
 		for (int i = 0; i < singleton_count; i++) {
 			singletons[i].onMainDestroy();
 		}
+
+		GodotLib.ondestroy(this);
+
 		super.onDestroy();
 	}
 
@@ -957,6 +957,12 @@ public class Godot extends Activity implements SensorEventListener, IDownloaderC
 			}
 		}
 
+		if (p_name.equals("CAMERA")) {
+			if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
+				requestPermissions(new String[] { Manifest.permission.CAMERA }, REQUEST_CAMERA_PERMISSION);
+				return false;
+			}
+		}
 		return true;
 	}
 
diff --git a/platform/android/java/src/org/godotengine/godot/GodotDownloaderAlarmReceiver.java b/platform/android/java/src/org/godotengine/godot/GodotDownloaderAlarmReceiver.java
index fb7477c09c..e7e2a3f808 100644
--- a/platform/android/java/src/org/godotengine/godot/GodotDownloaderAlarmReceiver.java
+++ b/platform/android/java/src/org/godotengine/godot/GodotDownloaderAlarmReceiver.java
@@ -30,13 +30,12 @@
 
 package org.godotengine.godot;
 
-import com.google.android.vending.expansion.downloader.DownloaderClientMarshaller;
-
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.util.Log;
+import com.google.android.vending.expansion.downloader.DownloaderClientMarshaller;
 
 /**
  * You should start your derived downloader class when this receiver gets the message
diff --git a/platform/android/java/src/org/godotengine/godot/GodotDownloaderService.java b/platform/android/java/src/org/godotengine/godot/GodotDownloaderService.java
index 91a7b99c36..8e10710c9f 100644
--- a/platform/android/java/src/org/godotengine/godot/GodotDownloaderService.java
+++ b/platform/android/java/src/org/godotengine/godot/GodotDownloaderService.java
@@ -33,7 +33,6 @@ package org.godotengine.godot;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.util.Log;
-
 import com.google.android.vending.expansion.downloader.impl.DownloaderService;
 
 /**
diff --git a/platform/android/java/src/org/godotengine/godot/GodotIO.java b/platform/android/java/src/org/godotengine/godot/GodotIO.java
index 1b2ff61314..98174157ec 100644
--- a/platform/android/java/src/org/godotengine/godot/GodotIO.java
+++ b/platform/android/java/src/org/godotengine/godot/GodotIO.java
@@ -29,28 +29,27 @@
 /*************************************************************************/
 
 package org.godotengine.godot;
-import java.util.HashMap;
-import java.util.Locale;
-import android.net.Uri;
-import android.content.Intent;
-import android.content.res.AssetManager;
-import java.io.InputStream;
-import java.io.IOException;
 import android.app.*;
 import android.content.*;
+import android.content.Intent;
+import android.content.pm.ActivityInfo;
+import android.content.res.AssetManager;
+import android.graphics.*;
+import android.hardware.*;
+import android.media.*;
+import android.net.Uri;
+import android.os.*;
+import android.text.*;
+import android.text.method.*;
+import android.util.DisplayMetrics;
+import android.util.Log;
 import android.util.SparseArray;
 import android.view.*;
 import android.view.inputmethod.InputMethodManager;
-import android.os.*;
-import android.util.Log;
-import android.util.DisplayMetrics;
-import android.graphics.*;
-import android.text.method.*;
-import android.text.*;
-import android.media.*;
-import android.hardware.*;
-import android.content.*;
-import android.content.pm.ActivityInfo;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Locale;
 import org.godotengine.godot.input.*;
 //android.os.Build
 
diff --git a/platform/android/java/src/org/godotengine/godot/GodotLib.java b/platform/android/java/src/org/godotengine/godot/GodotLib.java
index 6e6b398a5d..81c98bcc79 100644
--- a/platform/android/java/src/org/godotengine/godot/GodotLib.java
+++ b/platform/android/java/src/org/godotengine/godot/GodotLib.java
@@ -46,6 +46,7 @@ public class GodotLib {
      */
 
 	public static native void initialize(Godot p_instance, Object p_asset_manager, boolean use_apk_expansion);
+	public static native void ondestroy(Godot p_instance);
 	public static native void setup(String[] p_cmdline);
 	public static native void resize(int width, int height);
 	public static native void newcontext(boolean p_32_bits);
@@ -67,8 +68,8 @@ public class GodotLib {
 	public static native void singleton(String p_name, Object p_object);
 	public static native void method(String p_sname, String p_name, String p_ret, String[] p_params);
 	public static native String getGlobal(String p_key);
-	public static native void callobject(int p_ID, String p_method, Object[] p_params);
-	public static native void calldeferred(int p_ID, String p_method, Object[] p_params);
+	public static native void callobject(int p_id, String p_method, Object[] p_params);
+	public static native void calldeferred(int p_id, String p_method, Object[] p_params);
 	public static native void requestPermissionResult(String p_permission, boolean p_result);
 
 	public static native void setVirtualKeyboardHeight(int p_height);
diff --git a/platform/android/java/src/org/godotengine/godot/GodotPaymentV3.java b/platform/android/java/src/org/godotengine/godot/GodotPaymentV3.java
index c3d81c5c1d..1432cd3a67 100644
--- a/platform/android/java/src/org/godotengine/godot/GodotPaymentV3.java
+++ b/platform/android/java/src/org/godotengine/godot/GodotPaymentV3.java
@@ -32,14 +32,12 @@ package org.godotengine.godot;
 
 import android.app.Activity;
 import android.util.Log;
-
-import org.godotengine.godot.payments.PaymentsManager;
-import org.json.JSONException;
-import org.json.JSONObject;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import org.godotengine.godot.payments.PaymentsManager;
+import org.json.JSONException;
+import org.json.JSONObject;
 
 public class GodotPaymentV3 extends Godot.SingletonBase {
 
diff --git a/platform/android/java/src/org/godotengine/godot/GodotView.java b/platform/android/java/src/org/godotengine/godot/GodotView.java
index ccf78f26f3..d7cd5b4360 100644
--- a/platform/android/java/src/org/godotengine/godot/GodotView.java
+++ b/platform/android/java/src/org/godotengine/godot/GodotView.java
@@ -31,16 +31,15 @@
 package org.godotengine.godot;
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.graphics.PixelFormat;
+import android.hardware.input.InputManager;
 import android.opengl.GLSurfaceView;
 import android.util.AttributeSet;
 import android.util.Log;
+import android.view.InputDevice;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
-import android.content.ContextWrapper;
-import android.view.InputDevice;
-import android.hardware.input.InputManager;
-
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -51,7 +50,6 @@ import javax.microedition.khronos.egl.EGLConfig;
 import javax.microedition.khronos.egl.EGLContext;
 import javax.microedition.khronos.egl.EGLDisplay;
 import javax.microedition.khronos.opengles.GL10;
-
 import org.godotengine.godot.input.InputManagerCompat;
 import org.godotengine.godot.input.InputManagerCompat.InputDeviceListener;
 /**
diff --git a/platform/android/java/src/org/godotengine/godot/input/GodotEditText.java b/platform/android/java/src/org/godotengine/godot/input/GodotEditText.java
index 44bd462ed0..45b739baa0 100644
--- a/platform/android/java/src/org/godotengine/godot/input/GodotEditText.java
+++ b/platform/android/java/src/org/godotengine/godot/input/GodotEditText.java
@@ -30,16 +30,15 @@
 
 package org.godotengine.godot.input;
 import android.content.Context;
-import android.util.AttributeSet;
-import android.view.KeyEvent;
-import android.widget.EditText;
-import org.godotengine.godot.*;
 import android.os.Handler;
 import android.os.Message;
-import android.view.inputmethod.InputMethodManager;
+import android.util.AttributeSet;
+import android.view.KeyEvent;
 import android.view.inputmethod.EditorInfo;
-
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
 import java.lang.ref.WeakReference;
+import org.godotengine.godot.*;
 
 public class GodotEditText extends EditText {
 	// ===========================================================
diff --git a/platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java b/platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
index 3b88609cc9..e4bafa7ff9 100644
--- a/platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
+++ b/platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
@@ -23,7 +23,6 @@ import android.os.Build;
 import android.os.Handler;
 import android.view.InputDevice;
 import android.view.MotionEvent;
-
 import java.util.HashMap;
 import java.util.Map;
 
diff --git a/platform/android/java/src/org/godotengine/godot/payments/ConsumeTask.java b/platform/android/java/src/org/godotengine/godot/payments/ConsumeTask.java
index 1d42aa4464..f872e7af56 100644
--- a/platform/android/java/src/org/godotengine/godot/payments/ConsumeTask.java
+++ b/platform/android/java/src/org/godotengine/godot/payments/ConsumeTask.java
@@ -30,13 +30,11 @@
 
 package org.godotengine.godot.payments;
 
-import com.android.vending.billing.IInAppBillingService;
-
 import android.content.Context;
 import android.os.AsyncTask;
 import android.os.RemoteException;
 import android.util.Log;
-
+import com.android.vending.billing.IInAppBillingService;
 import java.lang.ref.WeakReference;
 
 abstract public class ConsumeTask {
diff --git a/platform/android/java/src/org/godotengine/godot/payments/HandlePurchaseTask.java b/platform/android/java/src/org/godotengine/godot/payments/HandlePurchaseTask.java
index 835779ba00..5424ebb49d 100644
--- a/platform/android/java/src/org/godotengine/godot/payments/HandlePurchaseTask.java
+++ b/platform/android/java/src/org/godotengine/godot/payments/HandlePurchaseTask.java
@@ -30,13 +30,6 @@
 
 package org.godotengine.godot.payments;
 
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import org.godotengine.godot.GodotLib;
-import org.godotengine.godot.utils.Crypt;
-import com.android.vending.billing.IInAppBillingService;
-
 import android.app.Activity;
 import android.app.PendingIntent;
 import android.app.ProgressDialog;
@@ -47,6 +40,11 @@ import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.util.Log;
+import com.android.vending.billing.IInAppBillingService;
+import org.godotengine.godot.GodotLib;
+import org.godotengine.godot.utils.Crypt;
+import org.json.JSONException;
+import org.json.JSONObject;
 
 abstract public class HandlePurchaseTask {
 
diff --git a/platform/android/java/src/org/godotengine/godot/payments/PaymentsManager.java b/platform/android/java/src/org/godotengine/godot/payments/PaymentsManager.java
index 747a4ffd45..a0dbc432c1 100644
--- a/platform/android/java/src/org/godotengine/godot/payments/PaymentsManager.java
+++ b/platform/android/java/src/org/godotengine/godot/payments/PaymentsManager.java
@@ -40,17 +40,14 @@ import android.os.IBinder;
 import android.os.RemoteException;
 import android.text.TextUtils;
 import android.util.Log;
-
 import com.android.vending.billing.IInAppBillingService;
-
+import java.util.ArrayList;
+import java.util.Arrays;
 import org.godotengine.godot.Godot;
 import org.godotengine.godot.GodotPaymentV3;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-
 public class PaymentsManager {
 
 	public static final int BILLING_RESPONSE_RESULT_OK = 0;
diff --git a/platform/android/java/src/org/godotengine/godot/payments/PurchaseTask.java b/platform/android/java/src/org/godotengine/godot/payments/PurchaseTask.java
index 000aaa9456..650c5178f0 100644
--- a/platform/android/java/src/org/godotengine/godot/payments/PurchaseTask.java
+++ b/platform/android/java/src/org/godotengine/godot/payments/PurchaseTask.java
@@ -30,13 +30,6 @@
 
 package org.godotengine.godot.payments;
 
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import org.godotengine.godot.GodotLib;
-import org.godotengine.godot.utils.Crypt;
-import com.android.vending.billing.IInAppBillingService;
-
 import android.app.Activity;
 import android.app.PendingIntent;
 import android.app.ProgressDialog;
@@ -47,6 +40,11 @@ import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.util.Log;
+import com.android.vending.billing.IInAppBillingService;
+import org.godotengine.godot.GodotLib;
+import org.godotengine.godot.utils.Crypt;
+import org.json.JSONException;
+import org.json.JSONObject;
 
 abstract public class PurchaseTask {
 
diff --git a/platform/android/java/src/org/godotengine/godot/payments/ReleaseAllConsumablesTask.java b/platform/android/java/src/org/godotengine/godot/payments/ReleaseAllConsumablesTask.java
index cf750872d5..daca6ef5ae 100644
--- a/platform/android/java/src/org/godotengine/godot/payments/ReleaseAllConsumablesTask.java
+++ b/platform/android/java/src/org/godotengine/godot/payments/ReleaseAllConsumablesTask.java
@@ -34,14 +34,11 @@ import android.content.Context;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.util.Log;
-
 import com.android.vending.billing.IInAppBillingService;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
+import org.json.JSONException;
+import org.json.JSONObject;
 
 abstract public class ReleaseAllConsumablesTask {
 
diff --git a/platform/android/java/src/org/godotengine/godot/payments/ValidateTask.java b/platform/android/java/src/org/godotengine/godot/payments/ValidateTask.java
index 6701f9396a..d32c80e8e0 100644
--- a/platform/android/java/src/org/godotengine/godot/payments/ValidateTask.java
+++ b/platform/android/java/src/org/godotengine/godot/payments/ValidateTask.java
@@ -30,17 +30,6 @@
 
 package org.godotengine.godot.payments;
 
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import org.godotengine.godot.Godot;
-import org.godotengine.godot.GodotLib;
-import org.godotengine.godot.GodotPaymentV3;
-import org.godotengine.godot.utils.Crypt;
-import org.godotengine.godot.utils.HttpRequester;
-import org.godotengine.godot.utils.RequestParams;
-import com.android.vending.billing.IInAppBillingService;
-
 import android.app.Activity;
 import android.app.PendingIntent;
 import android.app.ProgressDialog;
@@ -51,8 +40,16 @@ import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.util.Log;
-
+import com.android.vending.billing.IInAppBillingService;
 import java.lang.ref.WeakReference;
+import org.godotengine.godot.Godot;
+import org.godotengine.godot.GodotLib;
+import org.godotengine.godot.GodotPaymentV3;
+import org.godotengine.godot.utils.Crypt;
+import org.godotengine.godot.utils.HttpRequester;
+import org.godotengine.godot.utils.RequestParams;
+import org.json.JSONException;
+import org.json.JSONObject;
 
 abstract public class ValidateTask {
 
diff --git a/platform/android/java/src/org/godotengine/godot/utils/CustomSSLSocketFactory.java b/platform/android/java/src/org/godotengine/godot/utils/CustomSSLSocketFactory.java
index 3806d4bcad..b61007faa3 100644
--- a/platform/android/java/src/org/godotengine/godot/utils/CustomSSLSocketFactory.java
+++ b/platform/android/java/src/org/godotengine/godot/utils/CustomSSLSocketFactory.java
@@ -37,10 +37,8 @@ import java.security.KeyStore;
 import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
 import java.security.UnrecoverableKeyException;
-
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.TrustManagerFactory;
-
 import org.apache.http.conn.ssl.SSLSocketFactory;
 
 /**
diff --git a/platform/android/java/src/org/godotengine/godot/utils/HttpRequester.java b/platform/android/java/src/org/godotengine/godot/utils/HttpRequester.java
index e9c81eb2e5..e98f533c23 100644
--- a/platform/android/java/src/org/godotengine/godot/utils/HttpRequester.java
+++ b/platform/android/java/src/org/godotengine/godot/utils/HttpRequester.java
@@ -30,6 +30,9 @@
 
 package org.godotengine.godot.utils;
 
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.util.Log;
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
@@ -39,7 +42,6 @@ import java.security.KeyStore;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
-
 import org.apache.http.HttpResponse;
 import org.apache.http.HttpVersion;
 import org.apache.http.NameValuePair;
@@ -64,10 +66,6 @@ import org.apache.http.params.HttpProtocolParams;
 import org.apache.http.protocol.HTTP;
 import org.apache.http.util.EntityUtils;
 
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.util.Log;
-
 /**
  *
  * @author Luis Linietsky <luis.linietsky@gmail.com>
diff --git a/platform/android/java/src/org/godotengine/godot/utils/RequestParams.java b/platform/android/java/src/org/godotengine/godot/utils/RequestParams.java
index c5778102f6..b9fe0dd0c9 100644
--- a/platform/android/java/src/org/godotengine/godot/utils/RequestParams.java
+++ b/platform/android/java/src/org/godotengine/godot/utils/RequestParams.java
@@ -34,7 +34,6 @@ import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
-
 import org.apache.http.NameValuePair;
 import org.apache.http.message.BasicNameValuePair;
 
diff --git a/platform/android/java_godot_io_wrapper.cpp b/platform/android/java_godot_io_wrapper.cpp
new file mode 100644
index 0000000000..ade7c03d58
--- /dev/null
+++ b/platform/android/java_godot_io_wrapper.cpp
@@ -0,0 +1,207 @@
+/*************************************************************************/
+/*  java_godot_io_wrapper.cpp                                            */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "java_godot_io_wrapper.h"
+#include "core/error_list.h"
+
+// JNIEnv is only valid within the thread it belongs to, in a multi threading environment
+// we can't cache it.
+// For GodotIO we call all access methods from our thread and we thus get a valid JNIEnv
+// from ThreadAndroid.
+
+GodotIOJavaWrapper::GodotIOJavaWrapper(JNIEnv *p_env, jobject p_godot_io_instance) {
+	godot_io_instance = p_env->NewGlobalRef(p_godot_io_instance);
+	if (godot_io_instance) {
+		cls = p_env->GetObjectClass(godot_io_instance);
+		if (cls) {
+			cls = (jclass)p_env->NewGlobalRef(cls);
+		} else {
+			// this is a pretty serious fail.. bail... pointers will stay 0
+			return;
+		}
+
+		_open_URI = p_env->GetMethodID(cls, "openURI", "(Ljava/lang/String;)I");
+		_get_data_dir = p_env->GetMethodID(cls, "getDataDir", "()Ljava/lang/String;");
+		_get_locale = p_env->GetMethodID(cls, "getLocale", "()Ljava/lang/String;");
+		_get_model = p_env->GetMethodID(cls, "getModel", "()Ljava/lang/String;");
+		_get_screen_DPI = p_env->GetMethodID(cls, "getScreenDPI", "()I");
+		_get_unique_id = p_env->GetMethodID(cls, "getUniqueID", "()Ljava/lang/String;");
+		_show_keyboard = p_env->GetMethodID(cls, "showKeyboard", "(Ljava/lang/String;)V");
+		_hide_keyboard = p_env->GetMethodID(cls, "hideKeyboard", "()V");
+		_set_screen_orientation = p_env->GetMethodID(cls, "setScreenOrientation", "(I)V");
+		_get_system_dir = p_env->GetMethodID(cls, "getSystemDir", "(I)Ljava/lang/String;");
+		_play_video = p_env->GetMethodID(cls, "playVideo", "(Ljava/lang/String;)V");
+		_is_video_playing = p_env->GetMethodID(cls, "isVideoPlaying", "()Z");
+		_pause_video = p_env->GetMethodID(cls, "pauseVideo", "()V");
+		_stop_video = p_env->GetMethodID(cls, "stopVideo", "()V");
+	}
+}
+
+GodotIOJavaWrapper::~GodotIOJavaWrapper() {
+	// nothing to do here for now
+}
+
+jobject GodotIOJavaWrapper::get_instance() {
+	return godot_io_instance;
+}
+
+Error GodotIOJavaWrapper::open_uri(const String &p_uri) {
+	if (_open_URI) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring jStr = env->NewStringUTF(p_uri.utf8().get_data());
+		return env->CallIntMethod(godot_io_instance, _open_URI, jStr) ? ERR_CANT_OPEN : OK;
+	} else {
+		return ERR_UNAVAILABLE;
+	}
+}
+
+String GodotIOJavaWrapper::get_user_data_dir() {
+	if (_get_data_dir) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring s = (jstring)env->CallObjectMethod(godot_io_instance, _get_data_dir);
+		return jstring_to_string(s, env);
+	} else {
+		return String();
+	}
+}
+
+String GodotIOJavaWrapper::get_locale() {
+	if (_get_locale) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring s = (jstring)env->CallObjectMethod(godot_io_instance, _get_locale);
+		return jstring_to_string(s, env);
+	} else {
+		return String();
+	}
+}
+
+String GodotIOJavaWrapper::get_model() {
+	if (_get_model) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring s = (jstring)env->CallObjectMethod(godot_io_instance, _get_model);
+		return jstring_to_string(s, env);
+	} else {
+		return String();
+	}
+}
+
+int GodotIOJavaWrapper::get_screen_dpi() {
+	if (_get_screen_DPI) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		return env->CallIntMethod(godot_io_instance, _get_screen_DPI);
+	} else {
+		return 160;
+	}
+}
+
+String GodotIOJavaWrapper::get_unique_id() {
+	if (_get_unique_id) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring s = (jstring)env->CallObjectMethod(godot_io_instance, _get_unique_id);
+		return jstring_to_string(s, env);
+	} else {
+		return String();
+	}
+}
+
+bool GodotIOJavaWrapper::has_vk() {
+	return (_show_keyboard != 0) && (_hide_keyboard != 0);
+}
+
+void GodotIOJavaWrapper::show_vk(const String &p_existing) {
+	if (_show_keyboard) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring jStr = env->NewStringUTF(p_existing.utf8().get_data());
+		env->CallVoidMethod(godot_io_instance, _show_keyboard, jStr);
+	}
+}
+
+void GodotIOJavaWrapper::hide_vk() {
+	if (_hide_keyboard) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		env->CallVoidMethod(godot_io_instance, _hide_keyboard);
+	}
+}
+
+void GodotIOJavaWrapper::set_screen_orientation(int p_orient) {
+	if (_set_screen_orientation) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		env->CallVoidMethod(godot_io_instance, _set_screen_orientation, p_orient);
+	}
+}
+
+String GodotIOJavaWrapper::get_system_dir(int p_dir) {
+	if (_get_system_dir) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring s = (jstring)env->CallObjectMethod(godot_io_instance, _get_system_dir, p_dir);
+		return jstring_to_string(s, env);
+	} else {
+		return String(".");
+	}
+}
+
+void GodotIOJavaWrapper::play_video(const String &p_path) {
+	// Why is this not here?!?!
+}
+
+bool GodotIOJavaWrapper::is_video_playing() {
+	if (_is_video_playing) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		return env->CallBooleanMethod(godot_io_instance, _is_video_playing);
+	} else {
+		return false;
+	}
+}
+
+void GodotIOJavaWrapper::pause_video() {
+	if (_pause_video) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		env->CallVoidMethod(godot_io_instance, _pause_video);
+	}
+}
+
+void GodotIOJavaWrapper::stop_video() {
+	if (_stop_video) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		env->CallVoidMethod(godot_io_instance, _stop_video);
+	}
+}
+
+// volatile because it can be changed from non-main thread and we need to
+// ensure the change is immediately visible to other threads.
+static volatile int virtual_keyboard_height;
+
+int GodotIOJavaWrapper::get_vk_height() {
+	return virtual_keyboard_height;
+}
+
+void GodotIOJavaWrapper::set_vk_height(int p_height) {
+	virtual_keyboard_height = p_height;
+}
diff --git a/platform/android/java_godot_io_wrapper.h b/platform/android/java_godot_io_wrapper.h
new file mode 100644
index 0000000000..100e50fd66
--- /dev/null
+++ b/platform/android/java_godot_io_wrapper.h
@@ -0,0 +1,88 @@
+/*************************************************************************/
+/*  java_godot_io_wrapper.h                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+// note, swapped java and godot around in the file name so all the java
+// wrappers are together
+
+#ifndef JAVA_GODOT_IO_WRAPPER_H
+#define JAVA_GODOT_IO_WRAPPER_H
+
+#include <android/log.h>
+#include <jni.h>
+
+#include "string_android.h"
+
+// Class that makes functions in java/src/org/godotengine/godot/GodotIO.java callable from C++
+class GodotIOJavaWrapper {
+private:
+	jobject godot_io_instance;
+	jclass cls;
+
+	jmethodID _open_URI = 0;
+	jmethodID _get_data_dir = 0;
+	jmethodID _get_locale = 0;
+	jmethodID _get_model = 0;
+	jmethodID _get_screen_DPI = 0;
+	jmethodID _get_unique_id = 0;
+	jmethodID _show_keyboard = 0;
+	jmethodID _hide_keyboard = 0;
+	jmethodID _set_screen_orientation = 0;
+	jmethodID _get_system_dir = 0;
+	jmethodID _play_video = 0;
+	jmethodID _is_video_playing = 0;
+	jmethodID _pause_video = 0;
+	jmethodID _stop_video = 0;
+
+public:
+	GodotIOJavaWrapper(JNIEnv *p_env, jobject p_godot_io_instance);
+	~GodotIOJavaWrapper();
+
+	jobject get_instance();
+
+	Error open_uri(const String &p_uri);
+	String get_user_data_dir();
+	String get_locale();
+	String get_model();
+	int get_screen_dpi();
+	String get_unique_id();
+	bool has_vk();
+	void show_vk(const String &p_existing);
+	void hide_vk();
+	int get_vk_height();
+	void set_vk_height(int p_height);
+	void set_screen_orientation(int p_orient);
+	String get_system_dir(int p_dir);
+	void play_video(const String &p_path);
+	bool is_video_playing();
+	void pause_video();
+	void stop_video();
+};
+
+#endif /* !JAVA_GODOT_IO_WRAPPER_H */
diff --git a/platform/android/java_glue.cpp b/platform/android/java_godot_lib_jni.cpp
index e9c0e5564f..466f79c215 100644
--- a/platform/android/java_glue.cpp
+++ b/platform/android/java_godot_lib_jni.cpp
@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  java_glue.cpp                                                        */
+/*  java_godot_lib_jni.cpp                                               */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,7 +28,10 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#include "java_glue.h"
+#include "java_godot_lib_jni.h"
+#include "java_godot_io_wrapper.h"
+#include "java_godot_wrapper.h"
+
 #include "android/asset_manager_jni.h"
 #include "audio_driver_jandroid.h"
 #include "core/engine.h"
@@ -47,6 +50,8 @@
 
 static JavaClassWrapper *java_class_wrapper = NULL;
 static OS_Android *os_android = NULL;
+static GodotJavaWrapper *godot_java = NULL;
+static GodotIOJavaWrapper *godot_io_java = NULL;
 
 struct jvalret {
 
@@ -588,181 +593,23 @@ TST tst;
 
 static bool initialized = false;
 static int step = 0;
+
 static Size2 new_size;
 static Vector3 accelerometer;
 static Vector3 gravity;
 static Vector3 magnetometer;
 static Vector3 gyroscope;
 static HashMap<String, JNISingleton *> jni_singletons;
-static jobject godot_io;
-
-typedef void (*GFXInitFunc)(void *ud, bool gl2);
-
-static jmethodID _on_video_init = 0;
-static jmethodID _restart = 0;
-static jobject _godot_instance;
-
-static jmethodID _openURI = 0;
-static jmethodID _getDataDir = 0;
-static jmethodID _getLocale = 0;
-static jmethodID _getClipboard = 0;
-static jmethodID _setClipboard = 0;
-static jmethodID _getModel = 0;
-static jmethodID _getScreenDPI = 0;
-static jmethodID _showKeyboard = 0;
-static jmethodID _hideKeyboard = 0;
-static jmethodID _setScreenOrientation = 0;
-static jmethodID _getUniqueID = 0;
-static jmethodID _getSystemDir = 0;
-static jmethodID _getGLESVersionCode = 0;
-static jmethodID _playVideo = 0;
-static jmethodID _isVideoPlaying = 0;
-static jmethodID _pauseVideo = 0;
-static jmethodID _stopVideo = 0;
-static jmethodID _setKeepScreenOn = 0;
-static jmethodID _alertDialog = 0;
-static jmethodID _requestPermission = 0;
-
-static void _gfx_init_func(void *ud, bool gl2) {
-}
-
-static int _open_uri(const String &p_uri) {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring jStr = env->NewStringUTF(p_uri.utf8().get_data());
-	return env->CallIntMethod(godot_io, _openURI, jStr);
-}
-
-static String _get_user_data_dir() {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring s = (jstring)env->CallObjectMethod(godot_io, _getDataDir);
-	return jstring_to_string(s, env);
-}
-
-static String _get_locale() {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring s = (jstring)env->CallObjectMethod(godot_io, _getLocale);
-	return jstring_to_string(s, env);
-}
-
-static String _get_clipboard() {
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring s = (jstring)env->CallObjectMethod(_godot_instance, _getClipboard);
-	return jstring_to_string(s, env);
-}
-
-static void _set_clipboard(const String &p_text) {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring jStr = env->NewStringUTF(p_text.utf8().get_data());
-	env->CallVoidMethod(_godot_instance, _setClipboard, jStr);
-}
-
-static String _get_model() {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring s = (jstring)env->CallObjectMethod(godot_io, _getModel);
-	return jstring_to_string(s, env);
-}
-
-static int _get_screen_dpi() {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	return env->CallIntMethod(godot_io, _getScreenDPI);
-}
-
-static String _get_unique_id() {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring s = (jstring)env->CallObjectMethod(godot_io, _getUniqueID);
-	return jstring_to_string(s, env);
-}
-
-static void _show_vk(const String &p_existing) {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring jStr = env->NewStringUTF(p_existing.utf8().get_data());
-	env->CallVoidMethod(godot_io, _showKeyboard, jStr);
-}
-
-static void _set_screen_orient(int p_orient) {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	env->CallVoidMethod(godot_io, _setScreenOrientation, p_orient);
-}
-
-static String _get_system_dir(int p_dir) {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring s = (jstring)env->CallObjectMethod(godot_io, _getSystemDir, p_dir);
-	return jstring_to_string(s, env);
-}
-
-static int _get_gles_version_code() {
-	JNIEnv *env = ThreadAndroid::get_env();
-	return env->CallIntMethod(_godot_instance, _getGLESVersionCode);
-}
-
-static void _hide_vk() {
-
-	JNIEnv *env = ThreadAndroid::get_env();
-	env->CallVoidMethod(godot_io, _hideKeyboard);
-}
 
 // virtual Error native_video_play(String p_path);
 // virtual bool native_video_is_playing();
 // virtual void native_video_pause();
 // virtual void native_video_stop();
 
-static void _play_video(const String &p_path) {
-}
-
-static bool _is_video_playing() {
-	JNIEnv *env = ThreadAndroid::get_env();
-	return env->CallBooleanMethod(godot_io, _isVideoPlaying);
-	//return false;
-}
-
-static void _pause_video() {
-	JNIEnv *env = ThreadAndroid::get_env();
-	env->CallVoidMethod(godot_io, _pauseVideo);
-}
-
-static void _stop_video() {
-	JNIEnv *env = ThreadAndroid::get_env();
-	env->CallVoidMethod(godot_io, _stopVideo);
-}
-
-static void _set_keep_screen_on(bool p_enabled) {
-	JNIEnv *env = ThreadAndroid::get_env();
-	env->CallVoidMethod(_godot_instance, _setKeepScreenOn, p_enabled);
-}
-
-static void _alert(const String &p_message, const String &p_title) {
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring jStrMessage = env->NewStringUTF(p_message.utf8().get_data());
-	jstring jStrTitle = env->NewStringUTF(p_title.utf8().get_data());
-	env->CallVoidMethod(_godot_instance, _alertDialog, jStrMessage, jStrTitle);
-}
-
-static bool _request_permission(const String &p_name) {
-	JNIEnv *env = ThreadAndroid::get_env();
-	jstring jStrName = env->NewStringUTF(p_name.utf8().get_data());
-	return env->CallBooleanMethod(_godot_instance, _requestPermission, jStrName);
-}
-
-// volatile because it can be changed from non-main thread and we need to
-// ensure the change is immediately visible to other threads.
-static volatile int virtual_keyboard_height;
-
-static int _get_vk_height() {
-	return virtual_keyboard_height;
-}
-
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setVirtualKeyboardHeight(JNIEnv *env, jobject obj, jint p_height) {
-	virtual_keyboard_height = p_height;
+	if (godot_io_java) {
+		godot_io_java->set_vk_height(p_height);
+	}
 }
 
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_initialize(JNIEnv *env, jobject obj, jobject activity, jobject p_asset_manager, jboolean p_use_apk_expansion) {
@@ -772,70 +619,42 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_initialize(JNIEnv *en
 	JavaVM *jvm;
 	env->GetJavaVM(&jvm);
 
-	_godot_instance = env->NewGlobalRef(activity);
-	//_godot_instance=activity;
-
-	{
-		//setup IO Object
-
-		jclass cls = env->FindClass("org/godotengine/godot/Godot");
-		if (cls) {
-
-			cls = (jclass)env->NewGlobalRef(cls);
-		}
-
-		jfieldID fid = env->GetStaticFieldID(cls, "io", "Lorg/godotengine/godot/GodotIO;");
-		jobject ob = env->GetStaticObjectField(cls, fid);
-		jobject gob = env->NewGlobalRef(ob);
-
-		godot_io = gob;
-
-		_on_video_init = env->GetMethodID(cls, "onVideoInit", "()V");
-		_restart = env->GetMethodID(cls, "restart", "()V");
-		_setKeepScreenOn = env->GetMethodID(cls, "setKeepScreenOn", "(Z)V");
-		_alertDialog = env->GetMethodID(cls, "alert", "(Ljava/lang/String;Ljava/lang/String;)V");
-		_getGLESVersionCode = env->GetMethodID(cls, "getGLESVersionCode", "()I");
-		_getClipboard = env->GetMethodID(cls, "getClipboard", "()Ljava/lang/String;");
-		_setClipboard = env->GetMethodID(cls, "setClipboard", "(Ljava/lang/String;)V");
-		_requestPermission = env->GetMethodID(cls, "requestPermission", "(Ljava/lang/String;)Z");
-
-		if (cls) {
-			jclass c = env->GetObjectClass(gob);
-			_openURI = env->GetMethodID(c, "openURI", "(Ljava/lang/String;)I");
-			_getDataDir = env->GetMethodID(c, "getDataDir", "()Ljava/lang/String;");
-			_getLocale = env->GetMethodID(c, "getLocale", "()Ljava/lang/String;");
-			_getModel = env->GetMethodID(c, "getModel", "()Ljava/lang/String;");
-			_getScreenDPI = env->GetMethodID(c, "getScreenDPI", "()I");
-			_getUniqueID = env->GetMethodID(c, "getUniqueID", "()Ljava/lang/String;");
-			_showKeyboard = env->GetMethodID(c, "showKeyboard", "(Ljava/lang/String;)V");
-			_hideKeyboard = env->GetMethodID(c, "hideKeyboard", "()V");
-			_setScreenOrientation = env->GetMethodID(c, "setScreenOrientation", "(I)V");
-			_getSystemDir = env->GetMethodID(c, "getSystemDir", "(I)Ljava/lang/String;");
-			_playVideo = env->GetMethodID(c, "playVideo", "(Ljava/lang/String;)V");
-			_isVideoPlaying = env->GetMethodID(c, "isVideoPlaying", "()Z");
-			_pauseVideo = env->GetMethodID(c, "pauseVideo", "()V");
-			_stopVideo = env->GetMethodID(c, "stopVideo", "()V");
-		}
+	// create our wrapper classes
+	godot_java = new GodotJavaWrapper(env, activity); // our activity is our godot instance is our activity..
+	godot_io_java = new GodotIOJavaWrapper(env, godot_java->get_member_object("io", "Lorg/godotengine/godot/GodotIO;", env));
 
-		ThreadAndroid::make_default(jvm);
+	ThreadAndroid::make_default(jvm);
 #ifdef USE_JAVA_FILE_ACCESS
-		FileAccessJAndroid::setup(gob);
+	FileAccessJAndroid::setup(godot_io_java->get_instance());
 #else
 
-		jobject amgr = env->NewGlobalRef(p_asset_manager);
+	jobject amgr = env->NewGlobalRef(p_asset_manager);
 
-		FileAccessAndroid::asset_manager = AAssetManager_fromJava(env, amgr);
+	FileAccessAndroid::asset_manager = AAssetManager_fromJava(env, amgr);
 #endif
-		DirAccessJAndroid::setup(gob);
-		AudioDriverAndroid::setup(gob);
-	}
 
-	os_android = new OS_Android(_gfx_init_func, env, _open_uri, _get_user_data_dir, _get_locale, _get_model, _get_screen_dpi, _show_vk, _hide_vk, _get_vk_height, _set_screen_orient, _get_unique_id, _get_system_dir, _get_gles_version_code, _play_video, _is_video_playing, _pause_video, _stop_video, _set_keep_screen_on, _alert, _set_clipboard, _get_clipboard, _request_permission, p_use_apk_expansion);
+	DirAccessJAndroid::setup(godot_io_java->get_instance());
+	AudioDriverAndroid::setup(godot_io_java->get_instance());
+
+	os_android = new OS_Android(godot_java, godot_io_java, p_use_apk_expansion);
 
 	char wd[500];
 	getcwd(wd, 500);
 
-	env->CallVoidMethod(_godot_instance, _on_video_init);
+	godot_java->on_video_init(env);
+}
+
+JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_ondestroy(JNIEnv *env) {
+	// lets cleanup
+	if (godot_io_java) {
+		delete godot_io_java;
+	}
+	if (godot_java) {
+		delete godot_java;
+	}
+	if (os_android) {
+		delete os_android;
+	}
 }
 
 static void _initialize_java_modules() {
@@ -852,17 +671,12 @@ static void _initialize_java_modules() {
 	Vector<String> mods = modules.split(",", false);
 
 	if (mods.size()) {
+		jobject cls = godot_java->get_class_loader();
 
-		JNIEnv *env = ThreadAndroid::get_env();
-
-		jclass activityClass = env->FindClass("org/godotengine/godot/Godot");
-
-		jmethodID getClassLoader = env->GetMethodID(activityClass, "getClassLoader", "()Ljava/lang/ClassLoader;");
-
-		jobject cls = env->CallObjectMethod(_godot_instance, getClassLoader);
+		// TODO create wrapper for class loader
 
+		JNIEnv *env = ThreadAndroid::get_env();
 		jclass classLoader = env->FindClass("java/lang/ClassLoader");
-
 		jmethodID findClass = env->GetMethodID(classLoader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
 
 		for (int i = 0; i < mods.size(); i++) {
@@ -886,7 +700,7 @@ static void _initialize_java_modules() {
 				ERR_EXPLAIN("Couldn't find proper initialize function 'public static Godot.SingletonBase Class::initialize(Activity p_activity)' initializer for singleton class: " + m);
 				ERR_CONTINUE(!initialize);
 			}
-			jobject obj = env->CallStaticObjectMethod(singletonClass, initialize, _godot_instance);
+			jobject obj = env->CallStaticObjectMethod(singletonClass, initialize, godot_java->get_activity());
 			env->NewGlobalRef(obj);
 		}
 	}
@@ -931,7 +745,7 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setup(JNIEnv *env, jo
 		return; //should exit instead and print the error
 	}
 
-	java_class_wrapper = memnew(JavaClassWrapper(_godot_instance));
+	java_class_wrapper = memnew(JavaClassWrapper(godot_java->get_activity()));
 	Engine::get_singleton()->add_singleton(Engine::Singleton("JavaClassWrapper", java_class_wrapper));
 	_initialize_java_modules();
 }
@@ -951,7 +765,7 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_newcontext(JNIEnv *en
 		} else {
 			// GL context recreated because it was lost; restart app to let it reload everything
 			os_android->main_loop_end();
-			env->CallVoidMethod(_godot_instance, _restart);
+			godot_java->restart(env);
 			step = -1; // Ensure no further steps are attempted
 		}
 	}
@@ -987,18 +801,13 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_step(JNIEnv *env, job
 	}
 
 	os_android->process_accelerometer(accelerometer);
-
 	os_android->process_gravity(gravity);
-
 	os_android->process_magnetometer(magnetometer);
-
 	os_android->process_gyroscope(gyroscope);
 
 	if (os_android->main_loop_iterate()) {
 
-		jclass cls = env->FindClass("org/godotengine/godot/Godot");
-		jmethodID _finish = env->GetMethodID(cls, "forceQuit", "()V");
-		env->CallVoidMethod(_godot_instance, _finish);
+		godot_java->force_quit(env);
 	}
 }
 
diff --git a/platform/android/java_glue.h b/platform/android/java_godot_lib_jni.h
index 3b93c9b42a..3a03294b08 100644
--- a/platform/android/java_glue.h
+++ b/platform/android/java_godot_lib_jni.h
@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  java_glue.h                                                          */
+/*  java_godot_lib_jni.h                                                 */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,14 +28,17 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef JAVA_GLUE_H
-#define JAVA_GLUE_H
+#ifndef JAVA_GODOT_LIB_JNI_H
+#define JAVA_GODOT_LIB_JNI_H
 
 #include <android/log.h>
 #include <jni.h>
 
+// These functions can be called from within JAVA and are the means by which our JAVA implementation calls back into our C++ code.
+// See java/src/org/godotengine/godot/GodotLib.java for the JAVA side of this (yes thats why we have the long names)
 extern "C" {
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_initialize(JNIEnv *env, jobject obj, jobject activity, jobject p_asset_manager, jboolean p_use_apk_expansion);
+JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_ondestroy(JNIEnv *env);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setup(JNIEnv *env, jobject obj, jobjectArray p_cmdline);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_resize(JNIEnv *env, jobject obj, jint width, jint height);
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_newcontext(JNIEnv *env, jobject obj, bool p_32_bits);
@@ -63,4 +66,4 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_setVirtualKeyboardHei
 JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_requestPermissionResult(JNIEnv *env, jobject p_obj, jstring p_permission, jboolean p_result);
 }
 
-#endif // JAVA_GLUE_H
+#endif /* !JAVA_GODOT_LIB_JNI_H */
diff --git a/platform/android/java_godot_wrapper.cpp b/platform/android/java_godot_wrapper.cpp
new file mode 100644
index 0000000000..101a1d76c6
--- /dev/null
+++ b/platform/android/java_godot_wrapper.cpp
@@ -0,0 +1,185 @@
+/*************************************************************************/
+/*  java_godot_wrapper.cpp                                               */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "java_godot_wrapper.h"
+
+// JNIEnv is only valid within the thread it belongs to, in a multi threading environment
+// we can't cache it.
+// For Godot we call most access methods from our thread and we thus get a valid JNIEnv
+// from ThreadAndroid. For one or two we expect to pass the environment
+
+// TODO we could probably create a base class for this...
+
+GodotJavaWrapper::GodotJavaWrapper(JNIEnv *p_env, jobject p_godot_instance) {
+	godot_instance = p_env->NewGlobalRef(p_godot_instance);
+
+	// get info about our Godot class so we can get pointers and stuff...
+	cls = p_env->FindClass("org/godotengine/godot/Godot");
+	if (cls) {
+		cls = (jclass)p_env->NewGlobalRef(cls);
+	} else {
+		// this is a pretty serious fail.. bail... pointers will stay 0
+		return;
+	}
+
+	// get some method pointers...
+	_on_video_init = p_env->GetMethodID(cls, "onVideoInit", "()V");
+	_restart = p_env->GetMethodID(cls, "restart", "()V");
+	_finish = p_env->GetMethodID(cls, "forceQuit", "()V");
+	_set_keep_screen_on = p_env->GetMethodID(cls, "setKeepScreenOn", "(Z)V");
+	_alert = p_env->GetMethodID(cls, "alert", "(Ljava/lang/String;Ljava/lang/String;)V");
+	_get_GLES_version_code = p_env->GetMethodID(cls, "getGLESVersionCode", "()I");
+	_get_clipboard = p_env->GetMethodID(cls, "getClipboard", "()Ljava/lang/String;");
+	_set_clipboard = p_env->GetMethodID(cls, "setClipboard", "(Ljava/lang/String;)V");
+	_request_permission = p_env->GetMethodID(cls, "requestPermission", "(Ljava/lang/String;)Z");
+}
+
+GodotJavaWrapper::~GodotJavaWrapper() {
+	// nothing to do here for now
+}
+
+jobject GodotJavaWrapper::get_activity() {
+	// our godot instance is our activity
+	return godot_instance;
+}
+
+jobject GodotJavaWrapper::get_member_object(const char *p_name, const char *p_class, JNIEnv *p_env) {
+	if (cls) {
+		if (p_env == NULL)
+			p_env = ThreadAndroid::get_env();
+
+		jfieldID fid = p_env->GetStaticFieldID(cls, p_name, p_class);
+		return p_env->GetStaticObjectField(cls, fid);
+	} else {
+		return NULL;
+	}
+}
+
+jobject GodotJavaWrapper::get_class_loader() {
+	if (cls) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jmethodID getClassLoader = env->GetMethodID(cls, "getClassLoader", "()Ljava/lang/ClassLoader;");
+		return env->CallObjectMethod(godot_instance, getClassLoader);
+	} else {
+		return NULL;
+	}
+}
+
+void GodotJavaWrapper::gfx_init(bool gl2) {
+	// beats me what this once did, there was no code,
+	// but we're getting false if our GLES3 driver is initialised
+	// and true for our GLES2 driver
+	// Maybe we're supposed to communicate this back or store it?
+}
+
+void GodotJavaWrapper::on_video_init(JNIEnv *p_env) {
+	if (_on_video_init)
+		if (p_env == NULL)
+			p_env = ThreadAndroid::get_env();
+
+	p_env->CallVoidMethod(godot_instance, _on_video_init);
+}
+
+void GodotJavaWrapper::restart(JNIEnv *p_env) {
+	if (_restart)
+		if (p_env == NULL)
+			p_env = ThreadAndroid::get_env();
+
+	p_env->CallVoidMethod(godot_instance, _restart);
+}
+
+void GodotJavaWrapper::force_quit(JNIEnv *p_env) {
+	if (_finish)
+		if (p_env == NULL)
+			p_env = ThreadAndroid::get_env();
+
+	p_env->CallVoidMethod(godot_instance, _finish);
+}
+
+void GodotJavaWrapper::set_keep_screen_on(bool p_enabled) {
+	if (_set_keep_screen_on) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		env->CallVoidMethod(godot_instance, _set_keep_screen_on, p_enabled);
+	}
+}
+
+void GodotJavaWrapper::alert(const String &p_message, const String &p_title) {
+	if (_alert) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring jStrMessage = env->NewStringUTF(p_message.utf8().get_data());
+		jstring jStrTitle = env->NewStringUTF(p_title.utf8().get_data());
+		env->CallVoidMethod(godot_instance, _alert, jStrMessage, jStrTitle);
+	}
+}
+
+int GodotJavaWrapper::get_gles_version_code() {
+	JNIEnv *env = ThreadAndroid::get_env();
+	if (_get_GLES_version_code) {
+		return env->CallIntMethod(godot_instance, _get_GLES_version_code);
+	}
+
+	return 0;
+}
+
+bool GodotJavaWrapper::has_get_clipboard() {
+	return _get_clipboard != 0;
+}
+
+String GodotJavaWrapper::get_clipboard() {
+	if (_get_clipboard) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring s = (jstring)env->CallObjectMethod(godot_instance, _get_clipboard);
+		return jstring_to_string(s, env);
+	} else {
+		return String();
+	}
+}
+
+bool GodotJavaWrapper::has_set_clipboard() {
+	return _set_clipboard != 0;
+}
+
+void GodotJavaWrapper::set_clipboard(const String &p_text) {
+	if (_set_clipboard) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring jStr = env->NewStringUTF(p_text.utf8().get_data());
+		env->CallVoidMethod(godot_instance, _set_clipboard, jStr);
+	}
+}
+
+bool GodotJavaWrapper::request_permission(const String &p_name) {
+	if (_request_permission) {
+		JNIEnv *env = ThreadAndroid::get_env();
+		jstring jStrName = env->NewStringUTF(p_name.utf8().get_data());
+		return env->CallBooleanMethod(godot_instance, _request_permission, jStrName);
+	} else {
+		return false;
+	}
+}
diff --git a/platform/android/java_godot_wrapper.h b/platform/android/java_godot_wrapper.h
new file mode 100644
index 0000000000..438aee019b
--- /dev/null
+++ b/platform/android/java_godot_wrapper.h
@@ -0,0 +1,81 @@
+/*************************************************************************/
+/*  java_godot_wrapper.h                                                 */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+// note, swapped java and godot around in the file name so all the java
+// wrappers are together
+
+#ifndef JAVA_GODOT_WRAPPER_H
+#define JAVA_GODOT_WRAPPER_H
+
+#include <android/log.h>
+#include <jni.h>
+
+#include "string_android.h"
+
+// Class that makes functions in java/src/org/godotengine/godot/Godot.java callable from C++
+class GodotJavaWrapper {
+private:
+	jobject godot_instance;
+	jclass cls;
+
+	jmethodID _on_video_init = 0;
+	jmethodID _restart = 0;
+	jmethodID _finish = 0;
+	jmethodID _set_keep_screen_on = 0;
+	jmethodID _alert = 0;
+	jmethodID _get_GLES_version_code = 0;
+	jmethodID _get_clipboard = 0;
+	jmethodID _set_clipboard = 0;
+	jmethodID _request_permission = 0;
+
+public:
+	GodotJavaWrapper(JNIEnv *p_env, jobject p_godot_instance);
+	~GodotJavaWrapper();
+
+	jobject get_activity();
+	jobject get_member_object(const char *p_name, const char *p_class, JNIEnv *p_env = NULL);
+
+	jobject get_class_loader();
+
+	void gfx_init(bool gl2);
+	void on_video_init(JNIEnv *p_env = NULL);
+	void restart(JNIEnv *p_env = NULL);
+	void force_quit(JNIEnv *p_env = NULL);
+	void set_keep_screen_on(bool p_enabled);
+	void alert(const String &p_message, const String &p_title);
+	int get_gles_version_code();
+	bool has_get_clipboard();
+	String get_clipboard();
+	bool has_set_clipboard();
+	void set_clipboard(const String &p_text);
+	bool request_permission(const String &p_name);
+};
+
+#endif /* !JAVA_GODOT_WRAPPER_H */
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index 837713f9c9..93d39859f2 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -46,6 +46,9 @@
 
 #include <dlfcn.h>
 
+#include "java_godot_io_wrapper.h"
+#include "java_godot_wrapper.h"
+
 class AndroidLogger : public Logger {
 public:
 	virtual void logv(const char *p_format, va_list p_list, bool p_err) {
@@ -118,15 +121,14 @@ int OS_Android::get_current_video_driver() const {
 
 Error OS_Android::initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) {
 
-	bool use_gl3 = get_gl_version_code_func() >= 0x00030000;
+	bool use_gl3 = godot_java->get_gles_version_code() >= 0x00030000;
 	use_gl3 = use_gl3 && (GLOBAL_GET("rendering/quality/driver/driver_name") == "GLES3");
 	bool gl_initialization_error = false;
 
 	while (true) {
 		if (use_gl3) {
 			if (RasterizerGLES3::is_viable() == OK) {
-				if (gfx_init_func)
-					gfx_init_func(gfx_init_ud, false);
+				godot_java->gfx_init(false);
 				RasterizerGLES3::register_config();
 				RasterizerGLES3::make_current();
 				break;
@@ -142,8 +144,7 @@ Error OS_Android::initialize(const VideoMode &p_desired, int p_video_driver, int
 			}
 		} else {
 			if (RasterizerGLES2::is_viable() == OK) {
-				if (gfx_init_func)
-					gfx_init_func(gfx_init_ud, true);
+				godot_java->gfx_init(true);
 				RasterizerGLES2::register_config();
 				RasterizerGLES2::make_current();
 				break;
@@ -195,17 +196,23 @@ void OS_Android::finalize() {
 	memdelete(input);
 }
 
+GodotJavaWrapper *OS_Android::get_godot_java() {
+	return godot_java;
+}
+
+GodotIOJavaWrapper *OS_Android::get_godot_io_java() {
+	return godot_io_java;
+}
+
 void OS_Android::alert(const String &p_alert, const String &p_title) {
 
 	//print("ALERT: %s\n", p_alert.utf8().get_data());
-	if (alert_func)
-		alert_func(p_alert, p_title);
+	godot_java->alert(p_alert, p_title);
 }
 
 bool OS_Android::request_permission(const String &p_name) {
-	if (request_permission_func)
-		return request_permission_func(p_name);
-	return false;
+
+	return godot_java->request_permission(p_name);
 }
 
 Error OS_Android::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path) {
@@ -262,9 +269,7 @@ void OS_Android::get_fullscreen_mode_list(List<VideoMode> *p_list, int p_screen)
 void OS_Android::set_keep_screen_on(bool p_enabled) {
 	OS::set_keep_screen_on(p_enabled);
 
-	if (set_keep_screen_on_func) {
-		set_keep_screen_on_func(p_enabled);
-	}
+	godot_java->set_keep_screen_on(p_enabled);
 }
 
 Size2 OS_Android::get_window_size() const {
@@ -287,14 +292,6 @@ bool OS_Android::can_draw() const {
 	return true; //always?
 }
 
-void OS_Android::set_cursor_shape(CursorShape p_shape) {
-
-	//android really really really has no mouse.. how amazing..
-}
-
-void OS_Android::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
-}
-
 void OS_Android::main_loop_begin() {
 
 	if (main_loop)
@@ -505,18 +502,16 @@ bool OS_Android::has_virtual_keyboard() const {
 }
 
 int OS_Android::get_virtual_keyboard_height() const {
-	if (get_virtual_keyboard_height_func) {
-		return get_virtual_keyboard_height_func();
-	}
+	return godot_io_java->get_vk_height();
 
-	ERR_PRINT("Cannot obtain virtual keyboard height.");
-	return 0;
+	// ERR_PRINT("Cannot obtain virtual keyboard height.");
+	// return 0;
 }
 
 void OS_Android::show_virtual_keyboard(const String &p_existing_text, const Rect2 &p_screen_rect) {
 
-	if (show_virtual_keyboard_func) {
-		show_virtual_keyboard_func(p_existing_text);
+	if (godot_io_java->has_vk()) {
+		godot_io_java->show_vk(p_existing_text);
 	} else {
 
 		ERR_PRINT("Virtual keyboard not available");
@@ -525,9 +520,9 @@ void OS_Android::show_virtual_keyboard(const String &p_existing_text, const Rect
 
 void OS_Android::hide_virtual_keyboard() {
 
-	if (hide_virtual_keyboard_func) {
+	if (godot_io_java->has_vk()) {
 
-		hide_virtual_keyboard_func();
+		godot_io_java->hide_vk();
 	} else {
 
 		ERR_PRINT("Virtual keyboard not available");
@@ -556,9 +551,7 @@ void OS_Android::set_display_size(Size2 p_size) {
 
 Error OS_Android::shell_open(String p_uri) {
 
-	if (open_uri_func)
-		return open_uri_func(p_uri) ? ERR_CANT_OPEN : OK;
-	return ERR_UNAVAILABLE;
+	return godot_io_java->open_uri(p_uri);
 }
 
 String OS_Android::get_resource_dir() const {
@@ -568,23 +561,29 @@ String OS_Android::get_resource_dir() const {
 
 String OS_Android::get_locale() const {
 
-	if (get_locale_func)
-		return get_locale_func();
+	String locale = godot_io_java->get_locale();
+	if (locale != "") {
+		return locale;
+	}
+
 	return OS_Unix::get_locale();
 }
 
 void OS_Android::set_clipboard(const String &p_text) {
 
-	if (set_clipboard_func) {
-		set_clipboard_func(p_text);
+	// DO we really need the fallback to OS_Unix here?!
+	if (godot_java->has_set_clipboard()) {
+		godot_java->set_clipboard(p_text);
 	} else {
 		OS_Unix::set_clipboard(p_text);
 	}
 }
 
 String OS_Android::get_clipboard() const {
-	if (get_clipboard_func) {
-		return get_clipboard_func();
+
+	// DO we really need the fallback to OS_Unix here?!
+	if (godot_java->has_get_clipboard()) {
+		return godot_java->get_clipboard();
 	}
 
 	return OS_Unix::get_clipboard();
@@ -592,17 +591,16 @@ String OS_Android::get_clipboard() const {
 
 String OS_Android::get_model_name() const {
 
-	if (get_model_func)
-		return get_model_func();
+	String model = godot_io_java->get_model();
+	if (model != "")
+		return model;
+
 	return OS_Unix::get_model_name();
 }
 
 int OS_Android::get_screen_dpi(int p_screen) const {
 
-	if (get_screen_dpi_func) {
-		return get_screen_dpi_func();
-	}
-	return 160;
+	return godot_io_java->get_screen_dpi();
 }
 
 String OS_Android::get_user_data_dir() const {
@@ -610,8 +608,8 @@ String OS_Android::get_user_data_dir() const {
 	if (data_dir_cache != String())
 		return data_dir_cache;
 
-	if (get_user_data_dir_func) {
-		String data_dir = get_user_data_dir_func();
+	String data_dir = godot_io_java->get_user_data_dir();
+	if (data_dir != "") {
 
 		//store current dir
 		char real_current_dir_name[2048];
@@ -638,45 +636,43 @@ String OS_Android::get_user_data_dir() const {
 
 void OS_Android::set_screen_orientation(ScreenOrientation p_orientation) {
 
-	if (set_screen_orientation_func)
-		set_screen_orientation_func(p_orientation);
+	godot_io_java->set_screen_orientation(p_orientation);
 }
 
 String OS_Android::get_unique_id() const {
 
-	if (get_unique_id_func)
-		return get_unique_id_func();
+	String unique_id = godot_io_java->get_unique_id();
+	if (unique_id != "")
+		return unique_id;
+
 	return OS::get_unique_id();
 }
 
 Error OS_Android::native_video_play(String p_path, float p_volume, String p_audio_track, String p_subtitle_track) {
 	// FIXME: Add support for volume, audio and subtitle tracks
-	if (video_play_func)
-		video_play_func(p_path);
+
+	godot_io_java->play_video(p_path);
 	return OK;
 }
 
 bool OS_Android::native_video_is_playing() const {
-	if (video_is_playing_func)
-		return video_is_playing_func();
-	return false;
+
+	return godot_io_java->is_video_playing();
 }
 
 void OS_Android::native_video_pause() {
-	if (video_pause_func)
-		video_pause_func();
+
+	godot_io_java->pause_video();
 }
 
 String OS_Android::get_system_dir(SystemDir p_dir) const {
 
-	if (get_system_dir_func)
-		return get_system_dir_func(p_dir);
-	return String(".");
+	return godot_io_java->get_system_dir(p_dir);
 }
 
 void OS_Android::native_video_stop() {
-	if (video_stop_func)
-		video_stop_func();
+
+	godot_io_java->stop_video();
 }
 
 void OS_Android::set_context_is_16_bits(bool p_is_16) {
@@ -719,7 +715,7 @@ bool OS_Android::_check_internal_feature_support(const String &p_feature) {
 	return false;
 }
 
-OS_Android::OS_Android(GFXInitFunc p_gfx_init_func, void *p_gfx_init_ud, OpenURIFunc p_open_uri_func, GetUserDataDirFunc p_get_user_data_dir_func, GetLocaleFunc p_get_locale_func, GetModelFunc p_get_model_func, GetScreenDPIFunc p_get_screen_dpi_func, ShowVirtualKeyboardFunc p_show_vk, HideVirtualKeyboardFunc p_hide_vk, VirtualKeyboardHeightFunc p_vk_height_func, SetScreenOrientationFunc p_screen_orient, GetUniqueIDFunc p_get_unique_id, GetSystemDirFunc p_get_sdir_func, GetGLVersionCodeFunc p_get_gl_version_func, VideoPlayFunc p_video_play_func, VideoIsPlayingFunc p_video_is_playing_func, VideoPauseFunc p_video_pause_func, VideoStopFunc p_video_stop_func, SetKeepScreenOnFunc p_set_keep_screen_on_func, AlertFunc p_alert_func, SetClipboardFunc p_set_clipboard_func, GetClipboardFunc p_get_clipboard_func, RequestPermissionFunc p_request_permission, bool p_use_apk_expansion) {
+OS_Android::OS_Android(GodotJavaWrapper *p_godot_java, GodotIOJavaWrapper *p_godot_io_java, bool p_use_apk_expansion) {
 
 	use_apk_expansion = p_use_apk_expansion;
 	default_videomode.width = 800;
@@ -727,38 +723,13 @@ OS_Android::OS_Android(GFXInitFunc p_gfx_init_func, void *p_gfx_init_ud, OpenURI
 	default_videomode.fullscreen = true;
 	default_videomode.resizable = false;
 
-	gfx_init_func = p_gfx_init_func;
-	gfx_init_ud = p_gfx_init_ud;
 	main_loop = NULL;
 	gl_extensions = NULL;
 	//rasterizer = NULL;
 	use_gl2 = false;
 
-	open_uri_func = p_open_uri_func;
-	get_user_data_dir_func = p_get_user_data_dir_func;
-	get_locale_func = p_get_locale_func;
-	get_model_func = p_get_model_func;
-	get_screen_dpi_func = p_get_screen_dpi_func;
-	get_unique_id_func = p_get_unique_id;
-	get_system_dir_func = p_get_sdir_func;
-	get_gl_version_code_func = p_get_gl_version_func;
-
-	video_play_func = p_video_play_func;
-	video_is_playing_func = p_video_is_playing_func;
-	video_pause_func = p_video_pause_func;
-	video_stop_func = p_video_stop_func;
-
-	show_virtual_keyboard_func = p_show_vk;
-	hide_virtual_keyboard_func = p_hide_vk;
-	get_virtual_keyboard_height_func = p_vk_height_func;
-
-	set_clipboard_func = p_set_clipboard_func;
-	get_clipboard_func = p_get_clipboard_func;
-
-	set_screen_orientation_func = p_screen_orient;
-	set_keep_screen_on_func = p_set_keep_screen_on_func;
-	alert_func = p_alert_func;
-	request_permission_func = p_request_permission;
+	godot_java = p_godot_java;
+	godot_io_java = p_godot_io_java;
 
 	Vector<Logger *> loggers;
 	loggers.push_back(memnew(AndroidLogger));
diff --git a/platform/android/os_android.h b/platform/android/os_android.h
index 44c5a206d4..d2198b0579 100644
--- a/platform/android/os_android.h
+++ b/platform/android/os_android.h
@@ -41,29 +41,8 @@
 #include "servers/audio_server.h"
 #include "servers/visual/rasterizer.h"
 
-typedef void (*GFXInitFunc)(void *ud, bool gl2);
-typedef int (*OpenURIFunc)(const String &);
-typedef String (*GetUserDataDirFunc)();
-typedef String (*GetLocaleFunc)();
-typedef void (*SetClipboardFunc)(const String &);
-typedef String (*GetClipboardFunc)();
-typedef String (*GetModelFunc)();
-typedef int (*GetScreenDPIFunc)();
-typedef String (*GetUniqueIDFunc)();
-typedef void (*ShowVirtualKeyboardFunc)(const String &);
-typedef void (*HideVirtualKeyboardFunc)();
-typedef void (*SetScreenOrientationFunc)(int);
-typedef String (*GetSystemDirFunc)(int);
-typedef int (*GetGLVersionCodeFunc)();
-
-typedef void (*VideoPlayFunc)(const String &);
-typedef bool (*VideoIsPlayingFunc)();
-typedef void (*VideoPauseFunc)();
-typedef void (*VideoStopFunc)();
-typedef void (*SetKeepScreenOnFunc)(bool p_enabled);
-typedef void (*AlertFunc)(const String &, const String &);
-typedef int (*VirtualKeyboardHeightFunc)();
-typedef bool (*RequestPermissionFunc)(const String &);
+class GodotJavaWrapper;
+class GodotIOJavaWrapper;
 
 class OS_Android : public OS_Unix {
 public:
@@ -91,9 +70,6 @@ public:
 private:
 	Vector<TouchPos> touch;
 
-	GFXInitFunc gfx_init_func;
-	void *gfx_init_ud;
-
 	bool use_gl2;
 	bool use_apk_expansion;
 
@@ -112,30 +88,11 @@ private:
 	VideoMode default_videomode;
 	MainLoop *main_loop;
 
-	OpenURIFunc open_uri_func;
-	GetUserDataDirFunc get_user_data_dir_func;
-	GetLocaleFunc get_locale_func;
-	SetClipboardFunc set_clipboard_func;
-	GetClipboardFunc get_clipboard_func;
-	GetModelFunc get_model_func;
-	GetScreenDPIFunc get_screen_dpi_func;
-	ShowVirtualKeyboardFunc show_virtual_keyboard_func;
-	HideVirtualKeyboardFunc hide_virtual_keyboard_func;
-	VirtualKeyboardHeightFunc get_virtual_keyboard_height_func;
-	SetScreenOrientationFunc set_screen_orientation_func;
-	GetUniqueIDFunc get_unique_id_func;
-	GetSystemDirFunc get_system_dir_func;
-	GetGLVersionCodeFunc get_gl_version_code_func;
-
-	VideoPlayFunc video_play_func;
-	VideoIsPlayingFunc video_is_playing_func;
-	VideoPauseFunc video_pause_func;
-	VideoStopFunc video_stop_func;
-	SetKeepScreenOnFunc set_keep_screen_on_func;
-	AlertFunc alert_func;
-	RequestPermissionFunc request_permission_func;
-
-	//PowerAndroid *power_manager;
+	GodotJavaWrapper *godot_java;
+	GodotIOJavaWrapper *godot_io_java;
+
+	//PowerAndroid *power_manager_func;
+
 	int video_driver_index;
 
 public:
@@ -159,6 +116,8 @@ public:
 	typedef int64_t ProcessID;
 
 	static OS *get_singleton();
+	GodotJavaWrapper *get_godot_java();
+	GodotIOJavaWrapper *get_godot_io_java();
 
 	virtual void alert(const String &p_alert, const String &p_title = "ALERT!");
 	virtual bool request_permission(const String &p_name);
@@ -185,9 +144,6 @@ public:
 
 	virtual bool can_draw() const;
 
-	virtual void set_cursor_shape(CursorShape p_shape);
-	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
-
 	void main_loop_begin();
 	bool main_loop_iterate();
 	void main_loop_request_go_back();
@@ -241,7 +197,7 @@ public:
 	void joy_connection_changed(int p_device, bool p_connected, String p_name);
 
 	virtual bool _check_internal_feature_support(const String &p_feature);
-	OS_Android(GFXInitFunc p_gfx_init_func, void *p_gfx_init_ud, OpenURIFunc p_open_uri_func, GetUserDataDirFunc p_get_user_data_dir_func, GetLocaleFunc p_get_locale_func, GetModelFunc p_get_model_func, GetScreenDPIFunc p_get_screen_dpi_func, ShowVirtualKeyboardFunc p_show_vk, HideVirtualKeyboardFunc p_hide_vk, VirtualKeyboardHeightFunc p_vk_height_func, SetScreenOrientationFunc p_screen_orient, GetUniqueIDFunc p_get_unique_id, GetSystemDirFunc p_get_sdir_func, GetGLVersionCodeFunc p_get_gl_version_func, VideoPlayFunc p_video_play_func, VideoIsPlayingFunc p_video_is_playing_func, VideoPauseFunc p_video_pause_func, VideoStopFunc p_video_stop_func, SetKeepScreenOnFunc p_set_keep_screen_on_func, AlertFunc p_alert_func, SetClipboardFunc p_set_clipboard, GetClipboardFunc p_get_clipboard, RequestPermissionFunc p_request_permission, bool p_use_apk_expansion);
+	OS_Android(GodotJavaWrapper *p_godot_java, GodotIOJavaWrapper *p_godot_io_java, bool p_use_apk_expansion);
 	~OS_Android();
 };
 
diff --git a/platform/haiku/audio_driver_media_kit.cpp b/platform/haiku/audio_driver_media_kit.cpp
index 8b7dd08bb7..3c4e31da36 100644
--- a/platform/haiku/audio_driver_media_kit.cpp
+++ b/platform/haiku/audio_driver_media_kit.cpp
@@ -39,11 +39,11 @@ int32_t *AudioDriverMediaKit::samples_in = NULL;
 Error AudioDriverMediaKit::init() {
 	active = false;
 
-	mix_rate = 44100;
+	mix_rate = GLOBAL_DEF_RST("audio/mix_rate", DEFAULT_MIX_RATE);
 	speaker_mode = SPEAKER_MODE_STEREO;
 	channels = 2;
 
-	int latency = GLOBAL_DEF_RST("audio/output_latency", 25);
+	int latency = GLOBAL_DEF_RST("audio/output_latency", DEFAULT_OUTPUT_LATENCY);
 	buffer_size = next_power_of_2(latency * mix_rate / 1000);
 	samples_in = memnew_arr(int32_t, buffer_size * channels);
 
diff --git a/platform/haiku/context_gl_haiku.h b/platform/haiku/context_gl_haiku.h
index 6eb67fea70..8452f5fbfb 100644
--- a/platform/haiku/context_gl_haiku.h
+++ b/platform/haiku/context_gl_haiku.h
@@ -33,12 +33,10 @@
 
 #if defined(OPENGL_ENABLED)
 
-#include "drivers/gl_context/context_gl.h"
-
 #include "haiku_direct_window.h"
 #include "haiku_gl_view.h"
 
-class ContextGL_Haiku : public ContextGL {
+class ContextGL_Haiku {
 private:
 	HaikuGLView *view;
 	HaikuDirectWindow *window;
@@ -46,18 +44,18 @@ private:
 	bool use_vsync;
 
 public:
-	virtual Error initialize();
-	virtual void release_current();
-	virtual void make_current();
-	virtual void swap_buffers();
-	virtual int get_window_width();
-	virtual int get_window_height();
+	Error initialize();
+	void release_current();
+	void make_current();
+	void swap_buffers();
+	int get_window_width();
+	int get_window_height();
 
-	virtual void set_use_vsync(bool p_use);
-	virtual bool is_using_vsync() const;
+	void set_use_vsync(bool p_use);
+	bool is_using_vsync() const;
 
 	ContextGL_Haiku(HaikuDirectWindow *p_window);
-	virtual ~ContextGL_Haiku();
+	~ContextGL_Haiku();
 };
 
 #endif
diff --git a/platform/haiku/detect.py b/platform/haiku/detect.py
index ae8cc58a4a..f33c77a407 100644
--- a/platform/haiku/detect.py
+++ b/platform/haiku/detect.py
@@ -137,7 +137,7 @@ def configure(env):
 
     if not env['builtin_miniupnpc']:
         # No pkgconfig file so far, hardcode default paths.
-        env.Append(CPPPATH=["/system/develop/headers/x86/miniupnpc"])
+        env.Prepend(CPPPATH=["/system/develop/headers/x86/miniupnpc"])
         env.Append(LIBS=["miniupnpc"])
 
     # On Linux wchar_t should be 32-bits
@@ -147,9 +147,9 @@ def configure(env):
 
     ## Flags
 
-    env.Append(CPPPATH=['#platform/haiku'])
+    env.Prepend(CPPPATH=['#platform/haiku'])
     env.Append(CPPFLAGS=['-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES_ENABLED'])
     env.Append(CPPFLAGS=['-DMEDIA_KIT_ENABLED'])
-    # env.Append(CCFLAGS=['-DFREETYPE_ENABLED'])
+    # env.Append(CPPFLAGS=['-DFREETYPE_ENABLED'])
     env.Append(CPPFLAGS=['-DPTHREAD_NO_RENAME'])  # TODO: enable when we have pthread_setname_np
     env.Append(LIBS=['be', 'game', 'media', 'network', 'bnetapi', 'z', 'GL'])
diff --git a/platform/haiku/os_haiku.cpp b/platform/haiku/os_haiku.cpp
index a6d5a00852..f3fed6669b 100644
--- a/platform/haiku/os_haiku.cpp
+++ b/platform/haiku/os_haiku.cpp
@@ -203,6 +203,10 @@ void OS_Haiku::set_cursor_shape(CursorShape p_shape) {
 	//ERR_PRINT("set_cursor_shape() NOT IMPLEMENTED");
 }
 
+OS::CursorShape OS_Haiku::get_cursor_shape() const {
+	// TODO: implement get_cursor_shape
+}
+
 void OS_Haiku::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
 	// TODO
 }
diff --git a/platform/haiku/os_haiku.h b/platform/haiku/os_haiku.h
index d7eac10635..6ab006843a 100644
--- a/platform/haiku/os_haiku.h
+++ b/platform/haiku/os_haiku.h
@@ -86,6 +86,7 @@ public:
 	virtual Point2 get_mouse_position() const;
 	virtual int get_mouse_button_state() const;
 	virtual void set_cursor_shape(CursorShape p_shape);
+	virtual CursorShape get_cursor_shape() const;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
 
 	virtual int get_screen_count() const;
diff --git a/platform/iphone/SCsub b/platform/iphone/SCsub
index 41991bce86..fa1b124561 100644
--- a/platform/iphone/SCsub
+++ b/platform/iphone/SCsub
@@ -2,8 +2,6 @@
 
 Import('env')
 
-import os
-
 iphone_lib = [
     'godot_iphone.cpp',
     'os_iphone.cpp',
diff --git a/platform/iphone/detect.py b/platform/iphone/detect.py
index 172572bcb4..3ed0a4ade7 100644
--- a/platform/iphone/detect.py
+++ b/platform/iphone/detect.py
@@ -1,5 +1,4 @@
 import os
-import string
 import sys
 from methods import detect_darwin_sdk_path
 
@@ -46,20 +45,21 @@ def configure(env):
     if (env["target"].startswith("release")):
         env.Append(CPPFLAGS=['-DNDEBUG', '-DNS_BLOCK_ASSERTIONS=1'])
         if (env["optimize"] == "speed"): #optimize for speed (default)
-            env.Append(CPPFLAGS=['-O2', '-ftree-vectorize', '-fomit-frame-pointer'])
+            env.Append(CCFLAGS=['-O2', '-ftree-vectorize', '-fomit-frame-pointer'])
             env.Append(LINKFLAGS=['-O2'])
         else: #optimize for size
-            env.Append(CPPFLAGS=['-Os', '-ftree-vectorize'])
+            env.Append(CCFLAGS=['-Os', '-ftree-vectorize'])
             env.Append(LINKFLAGS=['-Os'])
 
         if env["target"] == "release_debug":
             env.Append(CPPFLAGS=['-DDEBUG_ENABLED'])
 
     elif (env["target"] == "debug"):
-        env.Append(CPPFLAGS=['-D_DEBUG', '-DDEBUG=1', '-gdwarf-2', '-O0', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
+        env.Append(CCFLAGS=['-gdwarf-2', '-O0'])
+        env.Append(CPPFLAGS=['-D_DEBUG', '-DDEBUG=1', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
 
     if (env["use_lto"]):
-        env.Append(CPPFLAGS=['-flto'])
+        env.Append(CCFLAGS=['-flto'])
         env.Append(LINKFLAGS=['-flto'])
 
     ## Architecture
@@ -105,7 +105,7 @@ def configure(env):
         detect_darwin_sdk_path('iphonesimulator', env)
         env['ENV']['MACOSX_DEPLOYMENT_TARGET'] = '10.9'
         arch_flag = "i386" if env["arch"] == "x86" else env["arch"]
-        env.Append(CCFLAGS=('-arch ' + arch_flag + ' -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fblocks -fasm-blocks -isysroot $IPHONESDK -mios-simulator-version-min=10.0 -DCUSTOM_MATRIX_TRANSFORM_H=\\\"build/iphone/matrix4_iphone.h\\\" -DCUSTOM_VECTOR3_TRANSFORM_H=\\\"build/iphone/vector3_iphone.h\\\"').split())
+        env.Append(CCFLAGS=('-arch ' + arch_flag + ' -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fblocks -fasm-blocks -isysroot $IPHONESDK -mios-simulator-version-min=10.0').split())
     elif (env["arch"] == "arm"):
         detect_darwin_sdk_path('iphone', env)
         env.Append(CCFLAGS='-fno-objc-arc -arch armv7 -fmessage-length=0 -fno-strict-aliasing -fdiagnostics-print-source-range-info -fdiagnostics-show-category=id -fdiagnostics-parseable-fixits -fpascal-strings -fblocks -isysroot $IPHONESDK -fvisibility=hidden -mthumb "-DIBOutlet=__attribute__((iboutlet))" "-DIBOutletCollection(ClassName)=__attribute__((iboutletcollection(ClassName)))" "-DIBAction=void)__attribute__((ibaction)" -miphoneos-version-min=10.0 -MMD -MT dependencies'.split())
@@ -116,9 +116,9 @@ def configure(env):
         env.Append(CPPFLAGS=['-DLIBYUV_DISABLE_NEON'])
 
     if env['ios_exceptions']:
-        env.Append(CPPFLAGS=['-fexceptions'])
+        env.Append(CCFLAGS=['-fexceptions'])
     else:
-        env.Append(CPPFLAGS=['-fno-exceptions'])
+        env.Append(CCFLAGS=['-fno-exceptions'])
 
     ## Link flags
 
@@ -165,12 +165,12 @@ def configure(env):
     if env['icloud']:
         env.Append(CPPFLAGS=['-DICLOUD_ENABLED'])
 
-    env.Append(CPPPATH=['$IPHONESDK/usr/include',
-                        '$IPHONESDK/System/Library/Frameworks/OpenGLES.framework/Headers',
-                        '$IPHONESDK/System/Library/Frameworks/AudioUnit.framework/Headers',
-                        ])
+    env.Prepend(CPPPATH=['$IPHONESDK/usr/include',
+                         '$IPHONESDK/System/Library/Frameworks/OpenGLES.framework/Headers',
+                         '$IPHONESDK/System/Library/Frameworks/AudioUnit.framework/Headers',
+                         ])
 
     env['ENV']['CODESIGN_ALLOCATE'] = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate'
 
-    env.Append(CPPPATH=['#platform/iphone'])
+    env.Prepend(CPPPATH=['#platform/iphone'])
     env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DCOREAUDIO_ENABLED'])
diff --git a/platform/iphone/export/export.cpp b/platform/iphone/export/export.cpp
index 85d4b9e847..e1083aeefc 100644
--- a/platform/iphone/export/export.cpp
+++ b/platform/iphone/export/export.cpp
@@ -920,7 +920,7 @@ Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_p
 		EditorNode::add_io_error("Could not open export template (not a zip file?):\n" + src_pkg_name);
 		return ERR_CANT_OPEN;
 	}
-	ERR_FAIL_COND_V(!src_pkg_zip, ERR_CANT_OPEN);
+
 	int ret = unzGoToFirstFile(src_pkg_zip);
 	Vector<uint8_t> project_file_data;
 	while (ret == UNZ_OK) {
diff --git a/platform/iphone/os_iphone.cpp b/platform/iphone/os_iphone.cpp
index 7d0fdd2078..d8fb5992cc 100644
--- a/platform/iphone/os_iphone.cpp
+++ b/platform/iphone/os_iphone.cpp
@@ -84,14 +84,14 @@ void OSIPhone::set_data_dir(String p_dir) {
 	memdelete(da);
 };
 
-void OSIPhone::set_unique_id(String p_ID) {
+void OSIPhone::set_unique_id(String p_id) {
 
-	unique_ID = p_ID;
+	unique_id = p_id;
 };
 
 String OSIPhone::get_unique_id() const {
 
-	return unique_ID;
+	return unique_id;
 };
 
 void OSIPhone::initialize_core() {
@@ -490,17 +490,11 @@ void OSIPhone::set_keep_screen_on(bool p_enabled) {
 	_set_keep_screen_on(p_enabled);
 };
 
-void OSIPhone::set_cursor_shape(CursorShape p_shape){
-
-};
-
 String OSIPhone::get_user_data_dir() const {
 
 	return data_dir;
 };
 
-void OSIPhone::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot){};
-
 String OSIPhone::get_name() {
 
 	return "iOS";
diff --git a/platform/iphone/os_iphone.h b/platform/iphone/os_iphone.h
index 30d7a1ba41..460dfacd9b 100644
--- a/platform/iphone/os_iphone.h
+++ b/platform/iphone/os_iphone.h
@@ -107,7 +107,7 @@ private:
 	void queue_event(const Ref<InputEvent> &p_event);
 
 	String data_dir;
-	String unique_ID;
+	String unique_id;
 	String locale_code;
 
 	InputDefault *input;
@@ -167,9 +167,6 @@ public:
 	virtual void hide_virtual_keyboard();
 	virtual int get_virtual_keyboard_height() const;
 
-	virtual void set_cursor_shape(CursorShape p_shape);
-	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
-
 	virtual Size2 get_window_size() const;
 	virtual Rect2 get_window_safe_area() const;
 
@@ -186,7 +183,7 @@ public:
 	void set_locale(String p_locale);
 	String get_locale() const;
 
-	void set_unique_id(String p_ID);
+	void set_unique_id(String p_id);
 	String get_unique_id() const;
 
 	virtual Error native_video_play(String p_path, float p_volume, String p_audio_track, String p_subtitle_track);
diff --git a/platform/javascript/SCsub b/platform/javascript/SCsub
index a93c98a89f..85a633442e 100644
--- a/platform/javascript/SCsub
+++ b/platform/javascript/SCsub
@@ -20,6 +20,13 @@ for lib in js_libraries:
     env.Append(LINKFLAGS=['--js-library', env.File(lib).path])
 env.Depends(build, js_libraries)
 
+js_modules = [
+    'id_handler.js',
+]
+for module in js_modules:
+    env.Append(LINKFLAGS=['--pre-js', env.File(module).path])
+env.Depends(build, js_modules)
+
 wrapper_start = env.File('pre.js')
 wrapper_end = env.File('engine.js')
 js_wrapped = env.Textfile('#bin/godot', [wrapper_start, js, wrapper_end], TEXTFILESUFFIX='${PROGSUFFIX}.wrapped.js')
diff --git a/platform/javascript/detect.py b/platform/javascript/detect.py
index 47da8de5df..145ce8d83d 100644
--- a/platform/javascript/detect.py
+++ b/platform/javascript/detect.py
@@ -1,5 +1,4 @@
 import os
-import sys
 
 
 def is_active():
@@ -104,7 +103,7 @@ def configure(env):
 
     ## Compile flags
 
-    env.Append(CPPPATH=['#platform/javascript'])
+    env.Prepend(CPPPATH=['#platform/javascript'])
     env.Append(CPPDEFINES=['JAVASCRIPT_ENABLED', 'UNIX_ENABLED'])
 
     # No multi-threading (SharedArrayBuffer) available yet,
diff --git a/platform/javascript/id_handler.js b/platform/javascript/id_handler.js
new file mode 100644
index 0000000000..36ef5aa8ef
--- /dev/null
+++ b/platform/javascript/id_handler.js
@@ -0,0 +1,62 @@
+/*************************************************************************/
+/*  id_handler.js                                                        */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+var IDHandler = function() {
+
+	var ids = {};
+	var size = 0;
+
+	this.has = function(id) {
+		return ids.hasOwnProperty(id);
+	}
+
+	this.add = function(obj) {
+		size += 1;
+		var id = crypto.getRandomValues(new Int32Array(32))[0];
+		ids[id] = obj;
+		return id;
+	}
+
+	this.get = function(id) {
+		return ids[id];
+	}
+
+	this.remove = function(id) {
+		size -= 1;
+		delete ids[id];
+	}
+
+	this.size = function() {
+		return size;
+	}
+
+	this.ids = ids;
+};
+
+Module.IDHandler = new IDHandler;
diff --git a/platform/osx/SCsub b/platform/osx/SCsub
index d2952ebdc0..e15b4339a7 100644
--- a/platform/osx/SCsub
+++ b/platform/osx/SCsub
@@ -2,7 +2,6 @@
 
 Import('env')
 
-import os
 from platform_methods import run_in_subprocess
 import platform_osx_builders
 
diff --git a/platform/osx/detect.py b/platform/osx/detect.py
index 36a753e683..4c88f91d13 100644
--- a/platform/osx/detect.py
+++ b/platform/osx/detect.py
@@ -53,16 +53,18 @@ def configure(env):
 
     elif (env["target"] == "release_debug"):
         if (env["optimize"] == "speed"): #optimize for speed (default)
-            env.Prepend(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
+            env.Prepend(CCFLAGS=['-O2'])
         else: #optimize for size
-            env.Prepend(CCFLAGS=['-Os', '-DDEBUG_ENABLED'])
+            env.Prepend(CCFLAGS=['-Os'])
+        env.Prepend(CPPFLAGS=['-DDEBUG_ENABLED'])
         if (env["debug_symbols"] == "yes"):
             env.Prepend(CCFLAGS=['-g1'])
         if (env["debug_symbols"] == "full"):
             env.Prepend(CCFLAGS=['-g2'])
 
     elif (env["target"] == "debug"):
-        env.Prepend(CCFLAGS=['-g3', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
+        env.Prepend(CCFLAGS=['-g3'])
+        env.Prepend(CPPFLAGS=['-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
 
     ## Architecture
 
@@ -88,10 +90,10 @@ def configure(env):
             env['AR'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ar"
             env['RANLIB'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ranlib"
             env['AS'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-as"
-            env.Append(CCFLAGS=['-D__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
+            env.Append(CPPFLAGS=['-D__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
 
         detect_darwin_sdk_path('osx', env)
-        env.Append(CPPFLAGS=['-isysroot', '$MACOS_SDK_PATH'])
+        env.Append(CCFLAGS=['-isysroot', '$MACOS_SDK_PATH'])
         env.Append(LINKFLAGS=['-isysroot', '$MACOS_SDK_PATH'])
 
     else: # osxcross build
@@ -110,7 +112,7 @@ def configure(env):
         env['AR'] = basecmd + "ar"
         env['RANLIB'] = basecmd + "ranlib"
         env['AS'] = basecmd + "as"
-        env.Append(CCFLAGS=['-D__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
+        env.Append(CPPFLAGS=['-D__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
 
     if (env["CXX"] == "clang++"):
         env.Append(CPPFLAGS=['-DTYPED_METHOD_BIND'])
@@ -124,10 +126,10 @@ def configure(env):
 
     ## Flags
 
-    env.Append(CPPPATH=['#platform/osx'])
+    env.Prepend(CPPPATH=['#platform/osx'])
     env.Append(CPPFLAGS=['-DOSX_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DAPPLE_STYLE_KEYS', '-DCOREAUDIO_ENABLED', '-DCOREMIDI_ENABLED'])
     env.Append(LINKFLAGS=['-framework', 'Cocoa', '-framework', 'Carbon', '-framework', 'OpenGL', '-framework', 'AGL', '-framework', 'AudioUnit', '-framework', 'CoreAudio', '-framework', 'CoreMIDI', '-lz', '-framework', 'IOKit', '-framework', 'ForceFeedback', '-framework', 'CoreVideo'])
     env.Append(LIBS=['pthread'])
 
-    env.Append(CPPFLAGS=['-mmacosx-version-min=10.9'])
+    env.Append(CCFLAGS=['-mmacosx-version-min=10.9'])
     env.Append(LINKFLAGS=['-mmacosx-version-min=10.9'])
diff --git a/platform/osx/export/export.cpp b/platform/osx/export/export.cpp
index 5e94bc457b..89212b0e5e 100644
--- a/platform/osx/export/export.cpp
+++ b/platform/osx/export/export.cpp
@@ -441,7 +441,6 @@ Error EditorExportPlatformOSX::export_project(const Ref<EditorExportPreset> &p_p
 		return ERR_FILE_NOT_FOUND;
 	}
 
-	ERR_FAIL_COND_V(!src_pkg_zip, ERR_CANT_OPEN);
 	int ret = unzGoToFirstFile(src_pkg_zip);
 
 	String binary_to_use = "godot_osx_" + String(p_debug ? "debug" : "release") + ".64";
@@ -568,7 +567,7 @@ Error EditorExportPlatformOSX::export_project(const Ref<EditorExportPreset> &p_p
 					f->close();
 					if (is_execute) {
 						// Chmod with 0755 if the file is executable
-						f->_chmod(file, 0755);
+						FileAccess::set_unix_permissions(file, 0755);
 					}
 					memdelete(f);
 				} else {
diff --git a/platform/osx/os_osx.h b/platform/osx/os_osx.h
index dfe7b27bd0..125a88ab6d 100644
--- a/platform/osx/os_osx.h
+++ b/platform/osx/os_osx.h
@@ -172,6 +172,7 @@ public:
 	virtual Error open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path = false);
 
 	virtual void set_cursor_shape(CursorShape p_shape);
+	virtual CursorShape get_cursor_shape() const;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
 
 	virtual void set_mouse_show(bool p_show);
diff --git a/platform/osx/os_osx.mm b/platform/osx/os_osx.mm
index b45d0d80e6..fec524c04b 100644
--- a/platform/osx/os_osx.mm
+++ b/platform/osx/os_osx.mm
@@ -271,6 +271,8 @@ static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeSt
 
 - (void)windowDidExitFullScreen:(NSNotification *)notification {
 	OS_OSX::singleton->zoomed = false;
+	if (!OS_OSX::singleton->resizable)
+		[OS_OSX::singleton->window_object setStyleMask:[OS_OSX::singleton->window_object styleMask] & ~NSWindowStyleMaskResizable];
 }
 
 - (void)windowDidChangeBackingProperties:(NSNotification *)notification {
@@ -335,6 +337,11 @@ static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeSt
 }
 
 - (void)windowDidMove:(NSNotification *)notification {
+
+	if (OS_OSX::singleton->get_main_loop()) {
+		OS_OSX::singleton->input->release_pressed_events();
+	}
+
 	/*
 	[window->nsgl.context update];
 
@@ -710,8 +717,6 @@ static void _mouseDownEvent(NSEvent *event, int index, int mask, bool pressed) {
 
 	if (OS_OSX::singleton->main_loop && OS_OSX::singleton->mouse_mode != OS::MOUSE_MODE_CAPTURED)
 		OS_OSX::singleton->main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_EXIT);
-	if (OS_OSX::singleton->input)
-		OS_OSX::singleton->input->set_mouse_in_window(false);
 }
 
 - (void)mouseEntered:(NSEvent *)event {
@@ -719,8 +724,6 @@ static void _mouseDownEvent(NSEvent *event, int index, int mask, bool pressed) {
 		return;
 	if (OS_OSX::singleton->main_loop && OS_OSX::singleton->mouse_mode != OS::MOUSE_MODE_CAPTURED)
 		OS_OSX::singleton->main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_ENTER);
-	if (OS_OSX::singleton->input)
-		OS_OSX::singleton->input->set_mouse_in_window(true);
 
 	OS::CursorShape p_shape = OS_OSX::singleton->cursor_shape;
 	OS_OSX::singleton->cursor_shape = OS::CURSOR_MAX;
@@ -967,10 +970,10 @@ static const _KeyCodeMap _keycodes[55] = {
 	{ 'i', KEY_I },
 	{ 'o', KEY_O },
 	{ 'p', KEY_P },
-	{ '[', KEY_BRACERIGHT },
-	{ ']', KEY_BRACELEFT },
-	{ '{', KEY_BRACERIGHT },
-	{ '}', KEY_BRACELEFT },
+	{ '[', KEY_BRACELEFT },
+	{ ']', KEY_BRACERIGHT },
+	{ '{', KEY_BRACELEFT },
+	{ '}', KEY_BRACERIGHT },
 	{ 'a', KEY_A },
 	{ 's', KEY_S },
 	{ 'd', KEY_D },
@@ -1694,6 +1697,11 @@ void OS_OSX::set_cursor_shape(CursorShape p_shape) {
 	cursor_shape = p_shape;
 }
 
+OS::CursorShape OS_OSX::get_cursor_shape() const {
+
+	return cursor_shape;
+}
+
 void OS_OSX::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
 	if (p_cursor.is_valid()) {
 		Ref<Texture> texture = p_cursor;
@@ -2270,12 +2278,12 @@ Size2 OS_OSX::get_window_size() const {
 Size2 OS_OSX::get_real_window_size() const {
 
 	NSRect frame = [window_object frame];
-	return Size2(frame.size.width, frame.size.height);
+	return Size2(frame.size.width, frame.size.height) * _display_scale();
 }
 
 void OS_OSX::set_window_size(const Size2 p_size) {
 
-	Size2 size = p_size;
+	Size2 size = p_size / _display_scale();
 
 	if (get_borderless_window() == false) {
 		// NSRect used by setFrame includes the title bar, so add it to our size.y
@@ -2300,6 +2308,8 @@ void OS_OSX::set_window_fullscreen(bool p_enabled) {
 	if (zoomed != p_enabled) {
 		if (layered_window)
 			set_window_per_pixel_transparency_enabled(false);
+		if (!resizable)
+			[window_object setStyleMask:[window_object styleMask] | NSWindowStyleMaskResizable];
 		[window_object toggleFullScreen:nil];
 	}
 	zoomed = p_enabled;
@@ -2314,7 +2324,7 @@ void OS_OSX::set_window_resizable(bool p_enabled) {
 
 	if (p_enabled)
 		[window_object setStyleMask:[window_object styleMask] | NSWindowStyleMaskResizable];
-	else
+	else if (!zoomed)
 		[window_object setStyleMask:[window_object styleMask] & ~NSWindowStyleMaskResizable];
 
 	resizable = p_enabled;
diff --git a/platform/server/SCsub b/platform/server/SCsub
index 62d45efbc0..f977275595 100644
--- a/platform/server/SCsub
+++ b/platform/server/SCsub
@@ -1,7 +1,5 @@
 #!/usr/bin/env python
 
-import os
-import platform
 import sys
 
 Import('env')
diff --git a/platform/server/detect.py b/platform/server/detect.py
index 90a4092412..08c2eb6aaf 100644
--- a/platform/server/detect.py
+++ b/platform/server/detect.py
@@ -1,7 +1,6 @@
 import os
 import platform
 import sys
-from methods import get_compiler_version, use_gcc
 
 # This file is mostly based on platform/x11/detect.py.
 # If editing this file, make sure to apply relevant changes here too.
@@ -64,9 +63,10 @@ def configure(env):
 
     elif (env["target"] == "release_debug"):
         if (env["optimize"] == "speed"): #optimize for speed (default)
-            env.Prepend(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
+            env.Prepend(CCFLAGS=['-O2'])
         else: #optimize for size
-            env.Prepend(CCFLAGS=['-Os', '-DDEBUG_ENABLED'])
+            env.Prepend(CCFLAGS=['-Os'])
+        env.Prepend(CPPFLAGS=['-DDEBUG_ENABLED'])
 
         if (env["debug_symbols"] == "yes"):
             env.Prepend(CCFLAGS=['-g1'])
@@ -74,7 +74,8 @@ def configure(env):
             env.Prepend(CCFLAGS=['-g2'])
 
     elif (env["target"] == "debug"):
-        env.Prepend(CCFLAGS=['-g3', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
+        env.Prepend(CCFLAGS=['-g3'])
+        env.Prepend(CPPFLAGS=['-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
         env.Append(LINKFLAGS=['-rdynamic'])
 
     ## Architecture
@@ -147,7 +148,7 @@ def configure(env):
         # We need at least version 2.88
         import subprocess
         bullet_version = subprocess.check_output(['pkg-config', 'bullet', '--modversion']).strip()
-        if bullet_version < "2.88":
+        if str(bullet_version) < "2.88":
             # Abort as system bullet was requested but too old
             print("Bullet: System version {0} does not match minimal requirements ({1}). Aborting.".format(bullet_version, "2.88"))
             sys.exit(255)
@@ -200,7 +201,7 @@ def configure(env):
 
     if not env['builtin_miniupnpc']:
         # No pkgconfig file so far, hardcode default paths.
-        env.Append(CPPPATH=["/usr/include/miniupnpc"])
+        env.Prepend(CPPPATH=["/usr/include/miniupnpc"])
         env.Append(LIBS=["miniupnpc"])
 
     # On Linux wchar_t should be 32-bits
@@ -214,7 +215,7 @@ def configure(env):
     if not env['builtin_zlib']:
         env.ParseConfig('pkg-config zlib --cflags --libs')
 
-    env.Append(CPPPATH=['#platform/server'])
+    env.Prepend(CPPPATH=['#platform/server'])
     env.Append(CPPFLAGS=['-DSERVER_ENABLED', '-DUNIX_ENABLED'])
 
     if (platform.system() == "Darwin"):
diff --git a/platform/server/os_server.cpp b/platform/server/os_server.cpp
index e643d3e8bb..53f2a65c8e 100644
--- a/platform/server/os_server.cpp
+++ b/platform/server/os_server.cpp
@@ -198,12 +198,6 @@ String OS_Server::get_name() {
 void OS_Server::move_window_to_foreground() {
 }
 
-void OS_Server::set_cursor_shape(CursorShape p_shape) {
-}
-
-void OS_Server::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
-}
-
 OS::PowerState OS_Server::get_power_state() {
 	return power_manager->get_power_state();
 }
diff --git a/platform/server/os_server.h b/platform/server/os_server.h
index eebe8ae777..7441064790 100644
--- a/platform/server/os_server.h
+++ b/platform/server/os_server.h
@@ -95,9 +95,6 @@ protected:
 public:
 	virtual String get_name();
 
-	virtual void set_cursor_shape(CursorShape p_shape);
-	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
-
 	virtual void set_mouse_show(bool p_show);
 	virtual void set_mouse_grab(bool p_grab);
 	virtual bool is_mouse_grab_enabled() const;
diff --git a/platform/uwp/context_egl_uwp.h b/platform/uwp/context_egl_uwp.h
index 812bdfb688..0c62fe7456 100644
--- a/platform/uwp/context_egl_uwp.h
+++ b/platform/uwp/context_egl_uwp.h
@@ -37,11 +37,10 @@
 
 #include "core/error_list.h"
 #include "core/os/os.h"
-#include "drivers/gl_context/context_gl.h"
 
 using namespace Windows::UI::Core;
 
-class ContextEGL_UWP : public ContextGL {
+class ContextEGL_UWP {
 
 public:
 	enum Driver {
@@ -64,24 +63,24 @@ private:
 	Driver driver;
 
 public:
-	virtual void release_current();
+	void release_current();
 
-	virtual void make_current();
+	void make_current();
 
-	virtual int get_window_width();
-	virtual int get_window_height();
-	virtual void swap_buffers();
+	int get_window_width();
+	int get_window_height();
+	void swap_buffers();
 
-	virtual void set_use_vsync(bool use) { vsync = use; }
-	virtual bool is_using_vsync() const { return vsync; }
+	void set_use_vsync(bool use) { vsync = use; }
+	bool is_using_vsync() const { return vsync; }
 
-	virtual Error initialize();
+	Error initialize();
 	void reset();
 
 	void cleanup();
 
 	ContextEGL_UWP(CoreWindow ^ p_window, Driver p_driver);
-	virtual ~ContextEGL_UWP();
+	~ContextEGL_UWP();
 };
 
 #endif // CONTEXT_EGL_UWP_H
diff --git a/platform/uwp/detect.py b/platform/uwp/detect.py
index c32a11b396..00f419f4f0 100644
--- a/platform/uwp/detect.py
+++ b/platform/uwp/detect.py
@@ -1,6 +1,5 @@
 import methods
 import os
-import string
 import sys
 
 
@@ -25,8 +24,6 @@ def can_build():
 
 
 def get_opts():
-    from SCons.Variables import BoolVariable
-
     return [
         ('msvc_version', 'MSVC version to use (ignored if the VCINSTALLDIR environment variable is set)', None),
     ]
@@ -56,18 +53,20 @@ def configure(env):
     ## Build type
 
     if (env["target"] == "release"):
-        env.Append(CPPFLAGS=['/O2', '/GL'])
-        env.Append(CPPFLAGS=['/MD'])
+        env.Append(CCFLAGS=['/O2', '/GL'])
+        env.Append(CCFLAGS=['/MD'])
         env.Append(LINKFLAGS=['/SUBSYSTEM:WINDOWS', '/LTCG'])
 
     elif (env["target"] == "release_debug"):
-        env.Append(CCFLAGS=['/O2', '/Zi', '/DDEBUG_ENABLED'])
-        env.Append(CPPFLAGS=['/MD'])
+        env.Append(CCFLAGS=['/O2', '/Zi'])
+        env.Append(CCFLAGS=['/MD'])
+        env.Append(CPPFLAGS=['/DDEBUG_ENABLED'])
         env.Append(LINKFLAGS=['/SUBSYSTEM:CONSOLE'])
 
     elif (env["target"] == "debug"):
-        env.Append(CCFLAGS=['/Zi', '/DDEBUG_ENABLED', '/DDEBUG_MEMORY_ENABLED'])
-        env.Append(CPPFLAGS=['/MDd'])
+        env.Append(CCFLAGS=['/Zi'])
+        env.Append(CCFLAGS=['/MDd'])
+        env.Append(CPPFLAGS=['/DDEBUG_ENABLED', '/DDEBUG_MEMORY_ENABLED'])
         env.Append(LINKFLAGS=['/SUBSYSTEM:CONSOLE'])
         env.Append(LINKFLAGS=['/DEBUG'])
 
@@ -78,7 +77,7 @@ def configure(env):
 
     # ANGLE
     angle_root = os.getenv("ANGLE_SRC_PATH")
-    env.Append(CPPPATH=[angle_root + '/include'])
+    env.Prepend(CPPPATH=[angle_root + '/include'])
     jobs = str(env.GetOption("num_jobs"))
     angle_build_cmd = "msbuild.exe " + angle_root + "/winrt/10/src/angle.sln /nologo /v:m /m:" + jobs + " /p:Configuration=Release /p:Platform="
 
@@ -138,19 +137,20 @@ def configure(env):
 
     ## Compile flags
 
-    env.Append(CPPPATH=['#platform/uwp', '#drivers/windows'])
-    env.Append(CCFLAGS=['/DUWP_ENABLED', '/DWINDOWS_ENABLED', '/DTYPED_METHOD_BIND'])
-    env.Append(CCFLAGS=['/DGLES_ENABLED', '/DGL_GLEXT_PROTOTYPES', '/DEGL_EGLEXT_PROTOTYPES', '/DANGLE_ENABLED'])
+    env.Prepend(CPPPATH=['#platform/uwp', '#drivers/windows'])
+    env.Append(CPPFLAGS=['/DUWP_ENABLED', '/DWINDOWS_ENABLED', '/DTYPED_METHOD_BIND'])
+    env.Append(CPPFLAGS=['/DGLES_ENABLED', '/DGL_GLEXT_PROTOTYPES', '/DEGL_EGLEXT_PROTOTYPES', '/DANGLE_ENABLED'])
     winver = "0x0602" # Windows 8 is the minimum target for UWP build
-    env.Append(CCFLAGS=['/DWINVER=%s' % winver, '/D_WIN32_WINNT=%s' % winver])
+    env.Append(CPPFLAGS=['/DWINVER=%s' % winver, '/D_WIN32_WINNT=%s' % winver])
 
-    env.Append(CPPFLAGS=['/D', '__WRL_NO_DEFAULT_LIB__', '/D', 'WIN32', '/DPNG_ABORT=abort'])
+    env.Append(CPPFLAGS=['/D__WRL_NO_DEFAULT_LIB__', '/DWIN32', '/DPNG_ABORT=abort'])
 
     env.Append(CPPFLAGS=['/AI', vc_base_path + 'lib/store/references'])
     env.Append(CPPFLAGS=['/AI', vc_base_path + 'lib/x86/store/references'])
 
-    env.Append(CCFLAGS='/FS /MP /GS /wd"4453" /wd"28204" /wd"4291" /Zc:wchar_t /Gm- /fp:precise /D "_UNICODE" /D "UNICODE" /D "WINAPI_FAMILY=WINAPI_FAMILY_APP" /errorReport:prompt /WX- /Zc:forScope /Gd /EHsc /nologo'.split())
-    env.Append(CXXFLAGS='/ZW /FS'.split())
+    env.Append(CCFLAGS='/FS /MP /GS /wd"4453" /wd"28204" /wd"4291" /Zc:wchar_t /Gm- /fp:precise /errorReport:prompt /WX- /Zc:forScope /Gd /EHsc /nologo'.split())
+    env.Append(CPPFLAGS=['/D_UNICODE', '/DUNICODE', '/D "WINAPI_FAMILY=WINAPI_FAMILY_APP"'])
+    env.Append(CXXFLAGS=['/ZW'])
     env.Append(CCFLAGS=['/AI', vc_base_path + '\\vcpackages', '/AI', os.environ['WINDOWSSDKDIR'] + '\\References\\CommonConfiguration\\Neutral'])
 
     ## Link flags
diff --git a/platform/uwp/export/export.cpp b/platform/uwp/export/export.cpp
index 8ccf122d9f..a0ab398f89 100644
--- a/platform/uwp/export/export.cpp
+++ b/platform/uwp/export/export.cpp
@@ -505,7 +505,7 @@ void AppxPackager::add_file(String p_file_name, const uint8_t *p_buffer, size_t
 
 	while (p_len - step > 0) {
 
-		size_t block_size = (p_len - step) > BLOCK_SIZE ? BLOCK_SIZE : (p_len - step);
+		size_t block_size = (p_len - step) > BLOCK_SIZE ? (size_t)BLOCK_SIZE : (p_len - step);
 
 		for (uint32_t i = 0; i < block_size; i++) {
 			strm_in.write[i] = p_buffer[step + i];
diff --git a/platform/uwp/os_uwp.cpp b/platform/uwp/os_uwp.cpp
index bc74da8a1b..82f09032f5 100644
--- a/platform/uwp/os_uwp.cpp
+++ b/platform/uwp/os_uwp.cpp
@@ -704,6 +704,11 @@ void OS_UWP::set_cursor_shape(CursorShape p_shape) {
 	cursor_shape = p_shape;
 }
 
+OS::CursorShape OS_UWP::get_cursor_shape() const {
+
+	return cursor_shape;
+}
+
 void OS_UWP::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
 	// TODO
 }
diff --git a/platform/uwp/os_uwp.h b/platform/uwp/os_uwp.h
index fd78b3cdf7..00f79efb04 100644
--- a/platform/uwp/os_uwp.h
+++ b/platform/uwp/os_uwp.h
@@ -219,6 +219,7 @@ public:
 	virtual String get_clipboard() const;
 
 	void set_cursor_shape(CursorShape p_shape);
+	CursorShape get_cursor_shape() const;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
 	void set_icon(const Ref<Image> &p_icon);
 
diff --git a/platform/windows/context_gl_windows.h b/platform/windows/context_gl_windows.h
index 09801b9146..d23fba50e1 100644
--- a/platform/windows/context_gl_windows.h
+++ b/platform/windows/context_gl_windows.h
@@ -37,13 +37,12 @@
 
 #include "core/error_list.h"
 #include "core/os/os.h"
-#include "drivers/gl_context/context_gl.h"
 
 #include <windows.h>
 
 typedef bool(APIENTRY *PFNWGLSWAPINTERVALEXTPROC)(int interval);
 
-class ContextGL_Windows : public ContextGL {
+class ContextGL_Windows {
 
 	HDC hDC;
 	HGLRC hRC;
@@ -55,21 +54,21 @@ class ContextGL_Windows : public ContextGL {
 	PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT;
 
 public:
-	virtual void release_current();
+	void release_current();
 
-	virtual void make_current();
+	void make_current();
 
-	virtual int get_window_width();
-	virtual int get_window_height();
-	virtual void swap_buffers();
+	int get_window_width();
+	int get_window_height();
+	void swap_buffers();
 
-	virtual Error initialize();
+	Error initialize();
 
-	virtual void set_use_vsync(bool p_use);
-	virtual bool is_using_vsync() const;
+	void set_use_vsync(bool p_use);
+	bool is_using_vsync() const;
 
 	ContextGL_Windows(HWND hwnd, bool p_opengl_3_context);
-	virtual ~ContextGL_Windows();
+	~ContextGL_Windows();
 };
 
 #endif
diff --git a/platform/windows/detect.py b/platform/windows/detect.py
index 426a5e9e61..4b4b507499 100644
--- a/platform/windows/detect.py
+++ b/platform/windows/detect.py
@@ -1,6 +1,5 @@
 import methods
 import os
-import sys
 
 
 def is_active():
@@ -197,10 +196,12 @@ def configure_msvc(env, manual_msvc_config):
     ## Compile/link flags
 
     env.AppendUnique(CCFLAGS=['/MT', '/Gd', '/GR', '/nologo'])
+    if int(env['MSVC_VERSION'].split('.')[0]) >= 14: #vs2015 and later
+        env.AppendUnique(CCFLAGS=['/utf-8'])
     env.AppendUnique(CXXFLAGS=['/TP']) # assume all sources are C++
     if manual_msvc_config: # should be automatic if SCons found it
         if os.getenv("WindowsSdkDir") is not None:
-            env.Append(CPPPATH=[os.getenv("WindowsSdkDir") + "/Include"])
+            env.Prepend(CPPPATH=[os.getenv("WindowsSdkDir") + "/Include"])
         else:
             print("Missing environment variable: WindowsSdkDir")
 
@@ -238,7 +239,7 @@ def configure_msvc(env, manual_msvc_config):
             env.AppendUnique(LINKFLAGS=['/LTCG'])
 
     if manual_msvc_config:
-        env.Append(CPPPATH=[p for p in os.getenv("INCLUDE").split(";")])
+        env.Prepend(CPPPATH=[p for p in os.getenv("INCLUDE").split(";")])
         env.Append(LIBPATH=[p for p in os.getenv("LIB").split(";")])
 
     # Incremental linking fix
@@ -272,7 +273,8 @@ def configure_mingw(env):
            env.Prepend(CCFLAGS=['-g2'])
 
     elif (env["target"] == "release_debug"):
-        env.Append(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
+        env.Append(CCFLAGS=['-O2'])
+        env.Append(CPPFLAGS=['-DDEBUG_ENABLED'])
         if (env["debug_symbols"] == "yes"):
            env.Prepend(CCFLAGS=['-g1'])
         if (env["debug_symbols"] == "full"):
@@ -283,7 +285,8 @@ def configure_mingw(env):
            env.Prepend(CCFLAGS=['-Os'])
 
     elif (env["target"] == "debug"):
-        env.Append(CCFLAGS=['-g3', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
+        env.Append(CCFLAGS=['-g3'])
+        env.Append(CPPFLAGS=['-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
 
     ## Compiler configuration
 
@@ -324,12 +327,13 @@ def configure_mingw(env):
 
     ## Compile flags
 
-    env.Append(CCFLAGS=['-DWINDOWS_ENABLED', '-mwindows'])
-    env.Append(CCFLAGS=['-DOPENGL_ENABLED'])
-    env.Append(CCFLAGS=['-DWASAPI_ENABLED'])
-    env.Append(CCFLAGS=['-DWINMIDI_ENABLED'])
-    env.Append(CCFLAGS=['-DWINVER=%s' % env['target_win_version'], '-D_WIN32_WINNT=%s' % env['target_win_version']])
-    env.Append(LIBS=['mingw32', 'opengl32', 'dsound', 'ole32', 'd3d9', 'winmm', 'gdi32', 'iphlpapi', 'shlwapi', 'wsock32', 'ws2_32', 'kernel32', 'oleaut32', 'dinput8', 'dxguid', 'ksuser', 'imm32', 'bcrypt','avrt'])
+    env.Append(CCFLAGS=['-mwindows'])
+    env.Append(CPPFLAGS=['-DWINDOWS_ENABLED'])
+    env.Append(CPPFLAGS=['-DOPENGL_ENABLED'])
+    env.Append(CPPFLAGS=['-DWASAPI_ENABLED'])
+    env.Append(CPPFLAGS=['-DWINMIDI_ENABLED'])
+    env.Append(CPPFLAGS=['-DWINVER=%s' % env['target_win_version'], '-D_WIN32_WINNT=%s' % env['target_win_version']])
+    env.Append(LIBS=['mingw32', 'opengl32', 'dsound', 'ole32', 'd3d9', 'winmm', 'gdi32', 'iphlpapi', 'shlwapi', 'wsock32', 'ws2_32', 'kernel32', 'oleaut32', 'dinput8', 'dxguid', 'ksuser', 'imm32', 'bcrypt', 'avrt', 'uuid'])
 
     env.Append(CPPFLAGS=['-DMINGW_ENABLED'])
 
@@ -338,7 +342,7 @@ def configure_mingw(env):
 
 def configure(env):
     # At this point the env has been set up with basic tools/compilers.
-    env.Append(CPPPATH=['#platform/windows'])
+    env.Prepend(CPPPATH=['#platform/windows'])
 
     print("Configuring for Windows: target=%s, bits=%s" % (env['target'], env['bits']))
 
diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
index 6125455e74..0b61770d87 100644
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -53,6 +53,7 @@
 
 #include <avrt.h>
 #include <direct.h>
+#include <knownfolders.h>
 #include <process.h>
 #include <regstr.h>
 #include <shlobj.h>
@@ -345,6 +346,7 @@ LRESULT OS_Windows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 				control_mem = false;
 				shift_mem = false;
 			} else { // WM_INACTIVE
+				input->release_pressed_events();
 				main_loop->notification(MainLoop::NOTIFICATION_WM_FOCUS_OUT);
 				alt_mem = false;
 			};
@@ -384,8 +386,6 @@ LRESULT OS_Windows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 			outside = true;
 			if (main_loop && mouse_mode != MOUSE_MODE_CAPTURED)
 				main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_EXIT);
-			if (input)
-				input->set_mouse_in_window(false);
 
 		} break;
 		case WM_INPUT: {
@@ -480,8 +480,6 @@ LRESULT OS_Windows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 
 				if (main_loop && mouse_mode != MOUSE_MODE_CAPTURED)
 					main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_ENTER);
-				if (input)
-					input->set_mouse_in_window(true);
 
 				CursorShape c = cursor_shape;
 				cursor_shape = CURSOR_MAX;
@@ -670,7 +668,9 @@ LRESULT OS_Windows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 						mb->set_button_index(BUTTON_XBUTTON2);
 					mb->set_doubleclick(true);
 				} break;
-				default: { return 0; }
+				default: {
+					return 0;
+				}
 			}
 
 			mb->set_control((wParam & MK_CONTROL) != 0);
@@ -787,6 +787,7 @@ LRESULT OS_Windows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 		} break;
 
 		case WM_ENTERSIZEMOVE: {
+			input->release_pressed_events();
 			move_timer_id = SetTimer(hWnd, 1, USER_TIMER_MINIMUM, (TIMERPROC)NULL);
 		} break;
 		case WM_EXITSIZEMOVE: {
@@ -1412,26 +1413,29 @@ Error OS_Windows::initialize(const VideoMode &p_desired, int p_video_driver, int
 
 void OS_Windows::set_clipboard(const String &p_text) {
 
+	// Convert LF line endings to CRLF in clipboard content
+	// Otherwise, line endings won't be visible when pasted in other software
+	String text = p_text.replace("\n", "\r\n");
+
 	if (!OpenClipboard(hWnd)) {
 		ERR_EXPLAIN("Unable to open clipboard.");
 		ERR_FAIL();
 	};
 	EmptyClipboard();
 
-	HGLOBAL mem = GlobalAlloc(GMEM_MOVEABLE, (p_text.length() + 1) * sizeof(CharType));
+	HGLOBAL mem = GlobalAlloc(GMEM_MOVEABLE, (text.length() + 1) * sizeof(CharType));
 	if (mem == NULL) {
 		ERR_EXPLAIN("Unable to allocate memory for clipboard contents.");
 		ERR_FAIL();
 	};
 	LPWSTR lptstrCopy = (LPWSTR)GlobalLock(mem);
-	memcpy(lptstrCopy, p_text.c_str(), (p_text.length() + 1) * sizeof(CharType));
-	//memset((lptstrCopy + p_text.length()), 0, sizeof(CharType));
+	memcpy(lptstrCopy, text.c_str(), (text.length() + 1) * sizeof(CharType));
 	GlobalUnlock(mem);
 
 	SetClipboardData(CF_UNICODETEXT, mem);
 
 	// set the CF_TEXT version (not needed?)
-	CharString utf8 = p_text.utf8();
+	CharString utf8 = text.utf8();
 	mem = GlobalAlloc(GMEM_MOVEABLE, utf8.length() + 1);
 	if (mem == NULL) {
 		ERR_EXPLAIN("Unable to allocate memory for clipboard contents.");
@@ -2297,6 +2301,11 @@ void OS_Windows::set_cursor_shape(CursorShape p_shape) {
 	cursor_shape = p_shape;
 }
 
+OS::CursorShape OS_Windows::get_cursor_shape() const {
+
+	return cursor_shape;
+}
+
 void OS_Windows::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
 	if (p_cursor.is_valid()) {
 		Ref<Texture> texture = p_cursor;
@@ -2457,7 +2466,7 @@ void OS_Windows::GetMaskBitmaps(HBITMAP hSourceBitmap, COLORREF clrTransparent,
 	DeleteDC(hMainDC);
 }
 
-Error OS_Windows::execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id, String *r_pipe, int *r_exitcode, bool read_stderr) {
+Error OS_Windows::execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex) {
 
 	if (p_blocking && r_pipe) {
 
@@ -2476,7 +2485,13 @@ Error OS_Windows::execute(const String &p_path, const List<String> &p_arguments,
 		char buf[65535];
 		while (fgets(buf, 65535, f)) {
 
+			if (p_pipe_mutex) {
+				p_pipe_mutex->lock();
+			}
 			(*r_pipe) += buf;
+			if (p_pipe_mutex) {
+				p_pipe_mutex->unlock();
+			}
 		}
 
 		int rv = _pclose(f);
@@ -2867,39 +2882,41 @@ String OS_Windows::get_godot_dir_name() const {
 
 String OS_Windows::get_system_dir(SystemDir p_dir) const {
 
-	int id;
+	KNOWNFOLDERID id;
 
 	switch (p_dir) {
 		case SYSTEM_DIR_DESKTOP: {
-			id = CSIDL_DESKTOPDIRECTORY;
+			id = FOLDERID_Desktop;
 		} break;
 		case SYSTEM_DIR_DCIM: {
-			id = CSIDL_MYPICTURES;
+			id = FOLDERID_Pictures;
 		} break;
 		case SYSTEM_DIR_DOCUMENTS: {
-			id = CSIDL_PERSONAL;
+			id = FOLDERID_Documents;
 		} break;
 		case SYSTEM_DIR_DOWNLOADS: {
-			id = 0x000C;
+			id = FOLDERID_Downloads;
 		} break;
 		case SYSTEM_DIR_MOVIES: {
-			id = CSIDL_MYVIDEO;
+			id = FOLDERID_Videos;
 		} break;
 		case SYSTEM_DIR_MUSIC: {
-			id = CSIDL_MYMUSIC;
+			id = FOLDERID_Music;
 		} break;
 		case SYSTEM_DIR_PICTURES: {
-			id = CSIDL_MYPICTURES;
+			id = FOLDERID_Pictures;
 		} break;
 		case SYSTEM_DIR_RINGTONES: {
-			id = CSIDL_MYMUSIC;
+			id = FOLDERID_Music;
 		} break;
 	}
 
-	WCHAR szPath[MAX_PATH];
-	HRESULT res = SHGetFolderPathW(NULL, id, NULL, 0, szPath);
+	PWSTR szPath;
+	HRESULT res = SHGetKnownFolderPath(id, 0, NULL, &szPath);
 	ERR_FAIL_COND_V(res != S_OK, String());
-	return String(szPath);
+	String path = String(szPath);
+	CoTaskMemFree(szPath);
+	return path;
 }
 
 String OS_Windows::get_user_data_dir() const {
diff --git a/platform/windows/os_windows.h b/platform/windows/os_windows.h
index 2d03532c69..0e0b9bf3f6 100644
--- a/platform/windows/os_windows.h
+++ b/platform/windows/os_windows.h
@@ -261,7 +261,7 @@ public:
 	virtual void delay_usec(uint32_t p_usec) const;
 	virtual uint64_t get_ticks_usec() const;
 
-	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false);
+	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL);
 	virtual Error kill(const ProcessID &p_pid);
 	virtual int get_process_id() const;
 
@@ -273,6 +273,7 @@ public:
 	virtual String get_clipboard() const;
 
 	void set_cursor_shape(CursorShape p_shape);
+	CursorShape get_cursor_shape() const;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
 	void GetMaskBitmaps(HBITMAP hSourceBitmap, COLORREF clrTransparent, OUT HBITMAP &hAndMaskBitmap, OUT HBITMAP &hXorMaskBitmap);
 	void set_icon(const Ref<Image> &p_icon);
diff --git a/platform/x11/SCsub b/platform/x11/SCsub
index e302f09c88..3d5aa15208 100644
--- a/platform/x11/SCsub
+++ b/platform/x11/SCsub
@@ -2,7 +2,6 @@
 
 Import('env')
 
-import os
 from platform_methods import run_in_subprocess
 import platform_x11_builders
 
diff --git a/platform/x11/context_gl_x11.h b/platform/x11/context_gl_x11.h
index 02455ce005..46420df48b 100644
--- a/platform/x11/context_gl_x11.h
+++ b/platform/x11/context_gl_x11.h
@@ -39,13 +39,12 @@
 #if defined(OPENGL_ENABLED)
 
 #include "core/os/os.h"
-#include "drivers/gl_context/context_gl.h"
 #include <X11/Xlib.h>
 #include <X11/extensions/Xrender.h>
 
 struct ContextGL_X11_Private;
 
-class ContextGL_X11 : public ContextGL {
+class ContextGL_X11 {
 
 public:
 	enum ContextType {
@@ -67,19 +66,19 @@ private:
 	ContextType context_type;
 
 public:
-	virtual void release_current();
-	virtual void make_current();
-	virtual void swap_buffers();
-	virtual int get_window_width();
-	virtual int get_window_height();
+	void release_current();
+	void make_current();
+	void swap_buffers();
+	int get_window_width();
+	int get_window_height();
 
-	virtual Error initialize();
+	Error initialize();
 
-	virtual void set_use_vsync(bool p_use);
-	virtual bool is_using_vsync() const;
+	void set_use_vsync(bool p_use);
+	bool is_using_vsync() const;
 
 	ContextGL_X11(::Display *p_x11_display, ::Window &p_x11_window, const OS::VideoMode &p_default_video_mode, ContextType p_context_type);
-	virtual ~ContextGL_X11();
+	~ContextGL_X11();
 };
 
 #endif
diff --git a/platform/x11/crash_handler_x11.cpp b/platform/x11/crash_handler_x11.cpp
index 1e7f393bdd..44d3cf1910 100644
--- a/platform/x11/crash_handler_x11.cpp
+++ b/platform/x11/crash_handler_x11.cpp
@@ -96,12 +96,10 @@ static void handle_crash(int sig) {
 			String output = "";
 
 			// Try to get the file/line number using addr2line
-			if (OS::get_singleton()) {
-				int ret;
-				Error err = OS::get_singleton()->execute(String("addr2line"), args, true, NULL, &output, &ret);
-				if (err == OK) {
-					output.erase(output.length() - 1, 1);
-				}
+			int ret;
+			Error err = OS::get_singleton()->execute(String("addr2line"), args, true, NULL, &output, &ret);
+			if (err == OK) {
+				output.erase(output.length() - 1, 1);
 			}
 
 			fprintf(stderr, "[%ld] %s (%ls)\n", i, fname, output.c_str());
diff --git a/platform/x11/detect.py b/platform/x11/detect.py
index b5ad59e60a..933ee6b72e 100644
--- a/platform/x11/detect.py
+++ b/platform/x11/detect.py
@@ -1,8 +1,8 @@
 import os
 import platform
 import sys
-from compat import decode_utf8
-from methods import get_compiler_version, use_gcc
+from methods import get_compiler_version, using_gcc, using_clang
+
 
 def is_active():
     return True
@@ -58,11 +58,13 @@ def get_opts():
 
     return [
         BoolVariable('use_llvm', 'Use the LLVM compiler', False),
+        BoolVariable('use_lld', 'Use the LLD linker', False),
+        BoolVariable('use_thinlto', 'Use ThinLTO', False),
         BoolVariable('use_static_cpp', 'Link libgcc and libstdc++ statically for better portability', False),
         BoolVariable('use_ubsan', 'Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)', False),
         BoolVariable('use_asan', 'Use LLVM/GCC compiler address sanitizer (ASAN))', False),
         BoolVariable('use_lsan', 'Use LLVM/GCC compiler leak sanitizer (LSAN))', False),
-        BoolVariable('pulseaudio', 'Detect & use pulseaudio', True),
+        BoolVariable('pulseaudio', 'Detect and use PulseAudio', True),
         BoolVariable('udev', 'Use udev for gamepad connection callbacks', False),
         EnumVariable('debug_symbols', 'Add debugging symbols to release builds', 'yes', ('yes', 'no', 'full')),
         BoolVariable('separate_debug_symbols', 'Create a separate file containing debugging symbols', False),
@@ -97,9 +99,10 @@ def configure(env):
 
     elif (env["target"] == "release_debug"):
         if (env["optimize"] == "speed"): #optimize for speed (default)
-            env.Prepend(CCFLAGS=['-O2', '-DDEBUG_ENABLED'])
+            env.Prepend(CCFLAGS=['-O2'])
         else: #optimize for size
-            env.Prepend(CCFLAGS=['-Os', '-DDEBUG_ENABLED'])
+            env.Prepend(CCFLAGS=['-Os'])
+        env.Prepend(CPPFLAGS=['-DDEBUG_ENABLED'])
 
         if (env["debug_symbols"] == "yes"):
             env.Prepend(CCFLAGS=['-g1'])
@@ -107,7 +110,8 @@ def configure(env):
             env.Prepend(CCFLAGS=['-g2'])
 
     elif (env["target"] == "debug"):
-        env.Prepend(CCFLAGS=['-g3', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
+        env.Prepend(CCFLAGS=['-g3'])
+        env.Prepend(CPPFLAGS=['-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
         env.Append(LINKFLAGS=['-rdynamic'])
 
     ## Architecture
@@ -130,6 +134,15 @@ def configure(env):
         env.Append(CPPFLAGS=['-DTYPED_METHOD_BIND'])
         env.extra_suffix = ".llvm" + env.extra_suffix
 
+    if env['use_lld']:
+        if env['use_llvm']:
+            env.Append(LINKFLAGS=['-fuse-ld=lld'])
+            if env['use_thinlto']:
+                # A convenience so you don't need to write use_lto too when using SCons
+                env['use_lto'] = True
+        else:
+            print("Using LLD with GCC is not supported yet, try compiling with 'use_llvm=yes'.")
+            sys.exit(255)
 
     if env['use_ubsan'] or env['use_asan'] or env['use_lsan']:
         env.extra_suffix += "s"
@@ -147,11 +160,17 @@ def configure(env):
             env.Append(LINKFLAGS=['-fsanitize=leak'])
 
     if env['use_lto']:
-        env.Append(CCFLAGS=['-flto'])
         if not env['use_llvm'] and env.GetOption("num_jobs") > 1:
+            env.Append(CCFLAGS=['-flto'])
             env.Append(LINKFLAGS=['-flto=' + str(env.GetOption("num_jobs"))])
         else:
-            env.Append(LINKFLAGS=['-flto'])
+            if env['use_lld'] and env['use_thinlto']:
+                env.Append(CCFLAGS=['-flto=thin'])
+                env.Append(LINKFLAGS=['-flto=thin'])
+            else:
+                env.Append(CCFLAGS=['-flto'])
+                env.Append(LINKFLAGS=['-flto'])
+        
         if not env['use_llvm']:
             env['RANLIB'] = 'gcc-ranlib'
             env['AR'] = 'gcc-ar'
@@ -160,11 +179,17 @@ def configure(env):
     env.Append(LINKFLAGS=['-pipe'])
 
     # Check for gcc version >= 6 before adding -no-pie
-    if use_gcc(env):
+    if using_gcc(env):
         version = get_compiler_version(env)
         if version != None and version[0] >= '6':
             env.Append(CCFLAGS=['-fpie'])
             env.Append(LINKFLAGS=['-no-pie'])
+    # Do the same for clang should be fine with Clang 4 and higher
+    if using_clang(env):
+        version = get_compiler_version(env)
+        if version != None and version[0] >= '4':
+            env.Append(CCFLAGS=['-fpie'])
+            env.Append(LINKFLAGS=['-no-pie'])
 
     ## Dependencies
 
@@ -197,7 +222,7 @@ def configure(env):
         # We need at least version 2.88
         import subprocess
         bullet_version = subprocess.check_output(['pkg-config', 'bullet', '--modversion']).strip()
-        if bullet_version < "2.88":
+        if str(bullet_version) < "2.88":
             # Abort as system bullet was requested but too old
             print("Bullet: System version {0} does not match minimal requirements ({1}). Aborting.".format(bullet_version, "2.88"))
             sys.exit(255)
@@ -250,7 +275,7 @@ def configure(env):
 
     if not env['builtin_miniupnpc']:
         # No pkgconfig file so far, hardcode default paths.
-        env.Append(CPPPATH=["/usr/include/miniupnpc"])
+        env.Prepend(CPPPATH=["/usr/include/miniupnpc"])
         env.Append(LIBS=["miniupnpc"])
 
     # On Linux wchar_t should be 32-bits
@@ -291,7 +316,7 @@ def configure(env):
     if not env['builtin_zlib']:
         env.ParseConfig('pkg-config zlib --cflags --libs')
 
-    env.Append(CPPPATH=['#platform/x11'])
+    env.Prepend(CPPPATH=['#platform/x11'])
     env.Append(CPPFLAGS=['-DX11_ENABLED', '-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES_ENABLED'])
     env.Append(LIBS=['GL', 'pthread'])
 
@@ -307,10 +332,10 @@ def configure(env):
     ## Cross-compilation
 
     if (is64 and env["bits"] == "32"):
-        env.Append(CPPFLAGS=['-m32'])
+        env.Append(CCFLAGS=['-m32'])
         env.Append(LINKFLAGS=['-m32', '-L/usr/lib/i386-linux-gnu'])
     elif (not is64 and env["bits"] == "64"):
-        env.Append(CPPFLAGS=['-m64'])
+        env.Append(CCFLAGS=['-m64'])
         env.Append(LINKFLAGS=['-m64', '-L/usr/lib/i686-linux-gnu'])
 
     # Link those statically for portability
diff --git a/platform/x11/os_x11.cpp b/platform/x11/os_x11.cpp
index 0fe91f3d00..c2e7b561d3 100644
--- a/platform/x11/os_x11.cpp
+++ b/platform/x11/os_x11.cpp
@@ -503,35 +503,33 @@ Error OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_a
 
 	current_cursor = CURSOR_ARROW;
 
-	if (cursor_theme) {
-		for (int i = 0; i < CURSOR_MAX; i++) {
-
-			static const char *cursor_file[] = {
-				"left_ptr",
-				"xterm",
-				"hand2",
-				"cross",
-				"watch",
-				"left_ptr_watch",
-				"fleur",
-				"hand1",
-				"X_cursor",
-				"sb_v_double_arrow",
-				"sb_h_double_arrow",
-				"size_bdiag",
-				"size_fdiag",
-				"hand1",
-				"sb_v_double_arrow",
-				"sb_h_double_arrow",
-				"question_arrow"
-			};
+	for (int i = 0; i < CURSOR_MAX; i++) {
 
-			img[i] = XcursorLibraryLoadImage(cursor_file[i], cursor_theme, cursor_size);
-			if (img[i]) {
-				cursors[i] = XcursorImageLoadCursor(x11_display, img[i]);
-			} else {
-				print_verbose("Failed loading custom cursor: " + String(cursor_file[i]));
-			}
+		static const char *cursor_file[] = {
+			"left_ptr",
+			"xterm",
+			"hand2",
+			"cross",
+			"watch",
+			"left_ptr_watch",
+			"fleur",
+			"hand1",
+			"X_cursor",
+			"sb_v_double_arrow",
+			"sb_h_double_arrow",
+			"size_bdiag",
+			"size_fdiag",
+			"hand1",
+			"sb_v_double_arrow",
+			"sb_h_double_arrow",
+			"question_arrow"
+		};
+
+		img[i] = XcursorLibraryLoadImage(cursor_file[i], cursor_theme, cursor_size);
+		if (img[i]) {
+			cursors[i] = XcursorImageLoadCursor(x11_display, img[i]);
+		} else {
+			print_verbose("Failed loading custom cursor: " + String(cursor_file[i]));
 		}
 	}
 
@@ -1165,7 +1163,7 @@ int OS_X11::get_screen_dpi(int p_screen) const {
 	int height_mm = DisplayHeightMM(x11_display, p_screen);
 	double xdpi = (width_mm ? sc.width / (double)width_mm * 25.4 : 0);
 	double ydpi = (height_mm ? sc.height / (double)height_mm * 25.4 : 0);
-	if (xdpi || xdpi)
+	if (xdpi || ydpi)
 		return (xdpi + ydpi) / (xdpi && ydpi ? 2 : 1);
 
 	//could not get dpi
@@ -1176,15 +1174,33 @@ Point2 OS_X11::get_window_position() const {
 	int x, y;
 	Window child;
 	XTranslateCoordinates(x11_display, x11_window, DefaultRootWindow(x11_display), 0, 0, &x, &y, &child);
-
-	int screen = get_current_screen();
-	Point2i screen_position = get_screen_position(screen);
-
-	return Point2i(x - screen_position.x, y - screen_position.y);
+	return Point2i(x, y);
 }
 
 void OS_X11::set_window_position(const Point2 &p_position) {
-	XMoveWindow(x11_display, x11_window, p_position.x, p_position.y);
+	int x = 0;
+	int y = 0;
+	if (get_borderless_window() == false) {
+		//exclude window decorations
+		XSync(x11_display, False);
+		Atom prop = XInternAtom(x11_display, "_NET_FRAME_EXTENTS", True);
+		if (prop != None) {
+			Atom type;
+			int format;
+			unsigned long len;
+			unsigned long remaining;
+			unsigned char *data = NULL;
+			if (XGetWindowProperty(x11_display, x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
+				if (format == 32 && len == 4) {
+					long *extents = (long *)data;
+					x = extents[0];
+					y = extents[2];
+				}
+				XFree(data);
+			}
+		}
+	}
+	XMoveWindow(x11_display, x11_window, p_position.x - x, p_position.y - y);
 	update_real_mouse_position();
 }
 
@@ -1201,15 +1217,20 @@ Size2 OS_X11::get_real_window_size() const {
 	int w = xwa.width;
 	int h = xwa.height;
 	Atom prop = XInternAtom(x11_display, "_NET_FRAME_EXTENTS", True);
-	Atom type;
-	int format;
-	unsigned long len;
-	unsigned long remaining;
-	unsigned char *data = NULL;
-	if (XGetWindowProperty(x11_display, x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
-		long *extents = (long *)data;
-		w += extents[0] + extents[1]; // left, right
-		h += extents[2] + extents[3]; // top, bottom
+	if (prop != None) {
+		Atom type;
+		int format;
+		unsigned long len;
+		unsigned long remaining;
+		unsigned char *data = NULL;
+		if (XGetWindowProperty(x11_display, x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
+			if (format == 32 && len == 4) {
+				long *extents = (long *)data;
+				w += extents[0] + extents[1]; // left, right
+				h += extents[2] + extents[3]; // top, bottom
+			}
+			XFree(data);
+		}
 	}
 	return Size2(w, h);
 }
@@ -2041,15 +2062,11 @@ void OS_X11::process_xevents() {
 			case LeaveNotify: {
 				if (main_loop && !mouse_mode_grab)
 					main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_EXIT);
-				if (input)
-					input->set_mouse_in_window(false);
 
 			} break;
 			case EnterNotify: {
 				if (main_loop && !mouse_mode_grab)
 					main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_ENTER);
-				if (input)
-					input->set_mouse_in_window(true);
 			} break;
 			case FocusIn:
 				minimized = false;
@@ -2080,7 +2097,9 @@ void OS_X11::process_xevents() {
 
 			case FocusOut:
 				window_has_focus = false;
+				input->release_pressed_events();
 				main_loop->notification(MainLoop::NOTIFICATION_WM_FOCUS_OUT);
+
 				if (mouse_mode_grab) {
 					//dear X11, I try, I really try, but you never work, you do whathever you want.
 					if (mouse_mode == MOUSE_MODE_CAPTURED) {
@@ -2722,6 +2741,11 @@ void OS_X11::set_cursor_shape(CursorShape p_shape) {
 	current_cursor = p_shape;
 }
 
+OS::CursorShape OS_X11::get_cursor_shape() const {
+
+	return current_cursor;
+}
+
 void OS_X11::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
 	if (p_cursor.is_valid()) {
 		Ref<Texture> texture = p_cursor;
@@ -3035,34 +3059,40 @@ bool OS_X11::is_vsync_enabled() const {
 */
 void OS_X11::set_context(int p_context) {
 
-	char *config_name = NULL;
 	XClassHint *classHint = XAllocClassHint();
 
 	if (classHint) {
 
-		char *wm_class = (char *)"Godot";
-		if (p_context == CONTEXT_EDITOR)
-			classHint->res_name = (char *)"Godot_Editor";
-		if (p_context == CONTEXT_PROJECTMAN)
-			classHint->res_name = (char *)"Godot_ProjectList";
+		CharString name_str;
+		switch (p_context) {
+			case CONTEXT_EDITOR:
+				name_str = "Godot_Editor";
+				break;
+			case CONTEXT_PROJECTMAN:
+				name_str = "Godot_ProjectList";
+				break;
+			case CONTEXT_ENGINE:
+				name_str = "Godot_Engine";
+				break;
+		}
 
+		CharString class_str;
 		if (p_context == CONTEXT_ENGINE) {
-			classHint->res_name = (char *)"Godot_Engine";
-			String config_name_tmp = GLOBAL_GET("application/config/name");
-			if (config_name_tmp.length() > 0) {
-				config_name = strdup(config_name_tmp.utf8().get_data());
+			String config_name = GLOBAL_GET("application/config/name");
+			if (config_name.length() == 0) {
+				class_str = "Godot_Engine";
 			} else {
-				config_name = strdup("Godot Engine");
+				class_str = config_name.utf8();
 			}
-
-			wm_class = config_name;
+		} else {
+			class_str = "Godot";
 		}
 
-		classHint->res_class = wm_class;
+		classHint->res_class = class_str.ptrw();
+		classHint->res_name = name_str.ptrw();
 
 		XSetClassHint(x11_display, x11_window, classHint);
 		XFree(classHint);
-		free(config_name);
 	}
 }
 
@@ -3238,6 +3268,8 @@ OS_X11::OS_X11() {
 	AudioDriverManager::add_driver(&driver_alsa);
 #endif
 
+	xi.opcode = 0;
+	xi.last_relative_time = 0;
 	layered_window = false;
 	minimized = false;
 	xim_style = 0L;
diff --git a/platform/x11/os_x11.h b/platform/x11/os_x11.h
index 6d1a66af84..a54851d4e7 100644
--- a/platform/x11/os_x11.h
+++ b/platform/x11/os_x11.h
@@ -219,6 +219,7 @@ public:
 	virtual String get_name();
 
 	virtual void set_cursor_shape(CursorShape p_shape);
+	virtual CursorShape get_cursor_shape() const;
 	virtual void set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot);
 
 	void set_mouse_mode(MouseMode p_mode);
diff --git a/platform/x11/power_x11.cpp b/platform/x11/power_x11.cpp
index 943c2b1383..50da6a4967 100644
--- a/platform/x11/power_x11.cpp
+++ b/platform/x11/power_x11.cpp
@@ -115,7 +115,7 @@ bool PowerX11::make_proc_acpi_key_val(char **_ptr, char **_key, char **_val) {
 
 	*(ptr++) = '\0'; /* terminate the key. */
 
-	while ((*ptr == ' ') && (*ptr != '\0')) {
+	while (*ptr == ' ') {
 		ptr++; /* skip whitespace. */
 	}
 
diff --git a/scene/2d/animated_sprite.cpp b/scene/2d/animated_sprite.cpp
index f8384bd1e4..25ad6bd5c9 100644
--- a/scene/2d/animated_sprite.cpp
+++ b/scene/2d/animated_sprite.cpp
@@ -393,19 +393,30 @@ void AnimatedSprite::_notification(int p_what) {
 					timeout = _get_frame_duration();
 
 					int fc = frames->get_frame_count(animation);
-					if (frame >= fc - 1) {
+					if ((!backwards && frame >= fc - 1) || (backwards && frame <= 0)) {
 						if (frames->get_animation_loop(animation)) {
-							frame = 0;
+							if (backwards)
+								frame = fc - 1;
+							else
+								frame = 0;
+
 							emit_signal(SceneStringNames::get_singleton()->animation_finished);
 						} else {
-							frame = fc - 1;
+							if (backwards)
+								frame = 0;
+							else
+								frame = fc - 1;
+
 							if (!is_over) {
 								is_over = true;
 								emit_signal(SceneStringNames::get_singleton()->animation_finished);
 							}
 						}
 					} else {
-						frame++;
+						if (backwards)
+							frame--;
+						else
+							frame++;
 					}
 
 					update();
@@ -594,10 +605,12 @@ bool AnimatedSprite::_is_playing() const {
 	return playing;
 }
 
-void AnimatedSprite::play(const StringName &p_animation) {
+void AnimatedSprite::play(const StringName &p_animation, const bool p_backwards) {
 
 	if (p_animation)
 		set_animation(p_animation);
+
+	backwards = p_backwards;
 	_set_playing(true);
 }
 
@@ -632,6 +645,9 @@ void AnimatedSprite::_reset_timeout() {
 
 void AnimatedSprite::set_animation(const StringName &p_animation) {
 
+	ERR_EXPLAIN(vformat("There is no animation with name '%s'.", p_animation));
+	ERR_FAIL_COND(frames->get_animation_names().find(p_animation) == -1);
+
 	if (animation == p_animation)
 		return;
 
@@ -666,7 +682,7 @@ void AnimatedSprite::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_set_playing", "playing"), &AnimatedSprite::_set_playing);
 	ClassDB::bind_method(D_METHOD("_is_playing"), &AnimatedSprite::_is_playing);
 
-	ClassDB::bind_method(D_METHOD("play", "anim"), &AnimatedSprite::play, DEFVAL(StringName()));
+	ClassDB::bind_method(D_METHOD("play", "anim", "backwards"), &AnimatedSprite::play, DEFVAL(StringName()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("stop"), &AnimatedSprite::stop);
 	ClassDB::bind_method(D_METHOD("is_playing"), &AnimatedSprite::is_playing);
 
@@ -713,6 +729,7 @@ AnimatedSprite::AnimatedSprite() {
 	frame = 0;
 	speed_scale = 1.0f;
 	playing = false;
+	backwards = false;
 	animation = "default";
 	timeout = 0;
 	is_over = false;
diff --git a/scene/2d/animated_sprite.h b/scene/2d/animated_sprite.h
index 8753f88799..2cc372bd93 100644
--- a/scene/2d/animated_sprite.h
+++ b/scene/2d/animated_sprite.h
@@ -128,6 +128,7 @@ class AnimatedSprite : public Node2D {
 
 	Ref<SpriteFrames> frames;
 	bool playing;
+	bool backwards;
 	StringName animation;
 	int frame;
 	float speed_scale;
@@ -169,7 +170,7 @@ public:
 	void set_sprite_frames(const Ref<SpriteFrames> &p_frames);
 	Ref<SpriteFrames> get_sprite_frames() const;
 
-	void play(const StringName &p_animation = StringName());
+	void play(const StringName &p_animation = StringName(), const bool p_backwards = false);
 	void stop();
 	bool is_playing() const;
 
diff --git a/scene/2d/area_2d.cpp b/scene/2d/area_2d.cpp
index 2a225e5797..b322cfe8f1 100644
--- a/scene/2d/area_2d.cpp
+++ b/scene/2d/area_2d.cpp
@@ -261,8 +261,9 @@ void Area2D::_area_inout(int p_status, const RID &p_area, int p_instance, int p_
 
 	Map<ObjectID, AreaState>::Element *E = area_map.find(objid);
 
-	ERR_FAIL_COND(!area_in && !E);
-
+	if (!area_in && !E) {
+		return; //likely removed from the tree
+	}
 	locked = true;
 
 	if (area_in) {
diff --git a/scene/2d/audio_stream_player_2d.cpp b/scene/2d/audio_stream_player_2d.cpp
index 7b28ad2c12..73f583111b 100644
--- a/scene/2d/audio_stream_player_2d.cpp
+++ b/scene/2d/audio_stream_player_2d.cpp
@@ -37,7 +37,7 @@
 void AudioStreamPlayer2D::_mix_audio() {
 
 	if (!stream_playback.is_valid() || !active ||
-			(stream_paused && !stream_fade_out)) {
+			(stream_paused && !stream_paused_fade_out)) {
 		return;
 	}
 
@@ -50,7 +50,7 @@ void AudioStreamPlayer2D::_mix_audio() {
 	AudioFrame *buffer = mix_buffer.ptrw();
 	int buffer_size = mix_buffer.size();
 
-	if (stream_fade_out) {
+	if (stream_paused_fade_out) {
 		// Short fadeout ramp
 		buffer_size = MIN(buffer_size, 128);
 	}
@@ -84,10 +84,10 @@ void AudioStreamPlayer2D::_mix_audio() {
 		}
 
 		//mix!
-		AudioFrame target_volume = stream_fade_out ? AudioFrame(0.f, 0.f) : current.vol;
-		AudioFrame vol_prev = stream_fade_in ? AudioFrame(0.f, 0.f) : prev_outputs[i].vol;
+		AudioFrame target_volume = stream_paused_fade_out ? AudioFrame(0.f, 0.f) : current.vol;
+		AudioFrame vol_prev = stream_paused_fade_in ? AudioFrame(0.f, 0.f) : prev_outputs[i].vol;
 		AudioFrame vol_inc = (target_volume - vol_prev) / float(buffer_size);
-		AudioFrame vol = stream_fade_in ? AudioFrame(0.f, 0.f) : current.vol;
+		AudioFrame vol = stream_paused_fade_in ? AudioFrame(0.f, 0.f) : current.vol;
 
 		int cc = AudioServer::get_singleton()->get_channel_count();
 
@@ -139,15 +139,9 @@ void AudioStreamPlayer2D::_mix_audio() {
 		active = false;
 	}
 
-	if (stream_stop) {
-		active = false;
-		set_physics_process_internal(false);
-		setplay = -1;
-	}
-
 	output_ready = false;
-	stream_fade_in = false;
-	stream_fade_out = false;
+	stream_paused_fade_in = false;
+	stream_paused_fade_out = false;
 }
 
 void AudioStreamPlayer2D::_notification(int p_what) {
@@ -329,7 +323,6 @@ void AudioStreamPlayer2D::play(float p_from_pos) {
 	}
 
 	if (stream_playback.is_valid()) {
-		stream_stop = false;
 		active = true;
 		setplay = p_from_pos;
 		output_ready = false;
@@ -347,8 +340,9 @@ void AudioStreamPlayer2D::seek(float p_seconds) {
 void AudioStreamPlayer2D::stop() {
 
 	if (stream_playback.is_valid()) {
-		stream_stop = true;
-		stream_fade_out = true;
+		active = false;
+		set_physics_process_internal(false);
+		setplay = -1;
 	}
 }
 
@@ -463,8 +457,8 @@ void AudioStreamPlayer2D::set_stream_paused(bool p_pause) {
 
 	if (p_pause != stream_paused) {
 		stream_paused = p_pause;
-		stream_fade_in = p_pause ? false : true;
-		stream_fade_out = p_pause ? true : false;
+		stream_paused_fade_in = p_pause ? false : true;
+		stream_paused_fade_out = p_pause ? true : false;
 	}
 }
 
@@ -473,6 +467,10 @@ bool AudioStreamPlayer2D::get_stream_paused() const {
 	return stream_paused;
 }
 
+Ref<AudioStreamPlayback> AudioStreamPlayer2D::get_stream_playback() {
+	return stream_playback;
+}
+
 void AudioStreamPlayer2D::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer2D::set_stream);
@@ -512,6 +510,8 @@ void AudioStreamPlayer2D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer2D::set_stream_paused);
 	ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer2D::get_stream_paused);
 
+	ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer2D::get_stream_playback);
+
 	ClassDB::bind_method(D_METHOD("_bus_layout_changed"), &AudioStreamPlayer2D::_bus_layout_changed);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
@@ -543,9 +543,8 @@ AudioStreamPlayer2D::AudioStreamPlayer2D() {
 	output_ready = false;
 	area_mask = 1;
 	stream_paused = false;
-	stream_fade_in = false;
-	stream_fade_out = false;
-	stream_stop = false;
+	stream_paused_fade_in = false;
+	stream_paused_fade_out = false;
 	AudioServer::get_singleton()->connect("bus_layout_changed", this, "_bus_layout_changed");
 }
 
diff --git a/scene/2d/audio_stream_player_2d.h b/scene/2d/audio_stream_player_2d.h
index caf5c6ee49..e9cdfa2303 100644
--- a/scene/2d/audio_stream_player_2d.h
+++ b/scene/2d/audio_stream_player_2d.h
@@ -73,9 +73,8 @@ private:
 	float pitch_scale;
 	bool autoplay;
 	bool stream_paused;
-	bool stream_fade_in;
-	bool stream_fade_out;
-	bool stream_stop;
+	bool stream_paused_fade_in;
+	bool stream_paused_fade_out;
 	StringName bus;
 
 	void _mix_audio();
@@ -130,6 +129,8 @@ public:
 	void set_stream_paused(bool p_pause);
 	bool get_stream_paused() const;
 
+	Ref<AudioStreamPlayback> get_stream_playback();
+
 	AudioStreamPlayer2D();
 	~AudioStreamPlayer2D();
 };
diff --git a/scene/2d/canvas_item.cpp b/scene/2d/canvas_item.cpp
index 2739f71543..78e98deb93 100644
--- a/scene/2d/canvas_item.cpp
+++ b/scene/2d/canvas_item.cpp
@@ -891,13 +891,13 @@ void CanvasItem::draw_colored_polygon(const Vector<Point2> &p_points, const Colo
 	VisualServer::get_singleton()->canvas_item_add_polygon(canvas_item, p_points, colors, p_uvs, rid, rid_normal, p_antialiased);
 }
 
-void CanvasItem::draw_mesh(const Ref<Mesh> &p_mesh, const Ref<Texture> &p_texture, const Ref<Texture> &p_normal_map) {
+void CanvasItem::draw_mesh(const Ref<Mesh> &p_mesh, const Ref<Texture> &p_texture, const Ref<Texture> &p_normal_map, const Transform2D &p_transform, const Color &p_modulate) {
 
 	ERR_FAIL_COND(p_mesh.is_null());
 	RID texture_rid = p_texture.is_valid() ? p_texture->get_rid() : RID();
 	RID normal_map_rid = p_normal_map.is_valid() ? p_normal_map->get_rid() : RID();
 
-	VisualServer::get_singleton()->canvas_item_add_mesh(canvas_item, p_mesh->get_rid(), texture_rid, normal_map_rid);
+	VisualServer::get_singleton()->canvas_item_add_mesh(canvas_item, p_mesh->get_rid(), p_transform, p_modulate, texture_rid, normal_map_rid);
 }
 void CanvasItem::draw_multimesh(const Ref<MultiMesh> &p_multimesh, const Ref<Texture> &p_texture, const Ref<Texture> &p_normal_map) {
 
@@ -1168,7 +1168,7 @@ void CanvasItem::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("draw_colored_polygon", "points", "color", "uvs", "texture", "normal_map", "antialiased"), &CanvasItem::draw_colored_polygon, DEFVAL(PoolVector2Array()), DEFVAL(Variant()), DEFVAL(Variant()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("draw_string", "font", "position", "text", "modulate", "clip_w"), &CanvasItem::draw_string, DEFVAL(Color(1, 1, 1)), DEFVAL(-1));
 	ClassDB::bind_method(D_METHOD("draw_char", "font", "position", "char", "next", "modulate"), &CanvasItem::draw_char, DEFVAL(Color(1, 1, 1)));
-	ClassDB::bind_method(D_METHOD("draw_mesh", "mesh", "texture", "normal_map"), &CanvasItem::draw_mesh, DEFVAL(Ref<Texture>()));
+	ClassDB::bind_method(D_METHOD("draw_mesh", "mesh", "texture", "normal_map", "transform", "modulate"), &CanvasItem::draw_mesh, DEFVAL(Ref<Texture>()), DEFVAL(Transform2D()), DEFVAL(Color(1, 1, 1)));
 	ClassDB::bind_method(D_METHOD("draw_multimesh", "multimesh", "texture", "normal_map"), &CanvasItem::draw_multimesh, DEFVAL(Ref<Texture>()));
 
 	ClassDB::bind_method(D_METHOD("draw_set_transform", "position", "rotation", "scale"), &CanvasItem::draw_set_transform);
diff --git a/scene/2d/canvas_item.h b/scene/2d/canvas_item.h
index bf7cfa8e75..a020ab5029 100644
--- a/scene/2d/canvas_item.h
+++ b/scene/2d/canvas_item.h
@@ -317,7 +317,7 @@ public:
 	void draw_polygon(const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), Ref<Texture> p_texture = Ref<Texture>(), const Ref<Texture> &p_normal_map = Ref<Texture>(), bool p_antialiased = false);
 	void draw_colored_polygon(const Vector<Point2> &p_points, const Color &p_color, const Vector<Point2> &p_uvs = Vector<Point2>(), Ref<Texture> p_texture = Ref<Texture>(), const Ref<Texture> &p_normal_map = Ref<Texture>(), bool p_antialiased = false);
 
-	void draw_mesh(const Ref<Mesh> &p_mesh, const Ref<Texture> &p_texture, const Ref<Texture> &p_normal_map);
+	void draw_mesh(const Ref<Mesh> &p_mesh, const Ref<Texture> &p_texture, const Ref<Texture> &p_normal_map, const Transform2D &p_transform = Transform2D(), const Color &p_modulate = Color(1, 1, 1));
 	void draw_multimesh(const Ref<MultiMesh> &p_multimesh, const Ref<Texture> &p_texture, const Ref<Texture> &p_normal_map);
 
 	void draw_string(const Ref<Font> &p_font, const Point2 &p_pos, const String &p_text, const Color &p_modulate = Color(1, 1, 1), int p_clip_w = -1);
diff --git a/scene/2d/collision_object_2d.cpp b/scene/2d/collision_object_2d.cpp
index d54070df8d..375375285d 100644
--- a/scene/2d/collision_object_2d.cpp
+++ b/scene/2d/collision_object_2d.cpp
@@ -29,6 +29,7 @@
 /*************************************************************************/
 
 #include "collision_object_2d.h"
+
 #include "scene/scene_string_names.h"
 #include "servers/physics_2d_server.h"
 
@@ -56,7 +57,7 @@ void CollisionObject2D::_notification(int p_what) {
 			_update_pickable();
 
 			//get space
-		}
+		} break;
 
 		case NOTIFICATION_ENTER_CANVAS: {
 
@@ -64,7 +65,7 @@ void CollisionObject2D::_notification(int p_what) {
 				Physics2DServer::get_singleton()->area_attach_canvas_instance_id(rid, get_canvas_layer_instance_id());
 			else
 				Physics2DServer::get_singleton()->body_attach_canvas_instance_id(rid, get_canvas_layer_instance_id());
-		}
+		} break;
 
 		case NOTIFICATION_VISIBILITY_CHANGED: {
 
@@ -101,7 +102,7 @@ void CollisionObject2D::_notification(int p_what) {
 				Physics2DServer::get_singleton()->area_attach_canvas_instance_id(rid, 0);
 			else
 				Physics2DServer::get_singleton()->body_attach_canvas_instance_id(rid, 0);
-		}
+		} break;
 	}
 }
 
@@ -250,9 +251,9 @@ void CollisionObject2D::shape_owner_add_shape(uint32_t p_owner, const Ref<Shape2
 	s.index = total_subshapes;
 	s.shape = p_shape;
 	if (area) {
-		Physics2DServer::get_singleton()->area_add_shape(rid, p_shape->get_rid(), sd.xform);
+		Physics2DServer::get_singleton()->area_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
 	} else {
-		Physics2DServer::get_singleton()->body_add_shape(rid, p_shape->get_rid(), sd.xform);
+		Physics2DServer::get_singleton()->body_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
 	}
 	sd.shapes.push_back(s);
 
diff --git a/scene/2d/light_2d.cpp b/scene/2d/light_2d.cpp
index d1fce74085..6b12db9e44 100644
--- a/scene/2d/light_2d.cpp
+++ b/scene/2d/light_2d.cpp
@@ -438,7 +438,7 @@ void Light2D::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "energy", PROPERTY_HINT_RANGE, "0.01,100,0.01"), "set_energy", "get_energy");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "mode", PROPERTY_HINT_ENUM, "Add,Sub,Mix,Mask"), "set_mode", "get_mode");
 	ADD_GROUP("Range", "range_");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "range_height", PROPERTY_HINT_RANGE, "-100,100,0.1"), "set_height", "get_height");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "range_height", PROPERTY_HINT_RANGE, "-2048,2048,0.1,or_lesser,or_greater"), "set_height", "get_height");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "range_z_min", PROPERTY_HINT_RANGE, itos(VS::CANVAS_ITEM_Z_MIN) + "," + itos(VS::CANVAS_ITEM_Z_MAX) + ",1"), "set_z_range_min", "get_z_range_min");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "range_z_max", PROPERTY_HINT_RANGE, itos(VS::CANVAS_ITEM_Z_MIN) + "," + itos(VS::CANVAS_ITEM_Z_MAX) + ",1"), "set_z_range_max", "get_z_range_max");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "range_layer_min", PROPERTY_HINT_RANGE, "-512,512,1"), "set_layer_range_min", "get_layer_range_min");
diff --git a/scene/2d/light_occluder_2d.cpp b/scene/2d/light_occluder_2d.cpp
index 5334caed67..3a3f90ac4b 100644
--- a/scene/2d/light_occluder_2d.cpp
+++ b/scene/2d/light_occluder_2d.cpp
@@ -32,9 +32,59 @@
 
 #include "core/engine.h"
 
+#define LINE_GRAB_WIDTH 8
+Rect2 OccluderPolygon2D::_edit_get_rect() const {
+
+	if (rect_cache_dirty) {
+		if (closed) {
+			PoolVector<Vector2>::Read r = polygon.read();
+			item_rect = Rect2();
+			for (int i = 0; i < polygon.size(); i++) {
+				Vector2 pos = r[i];
+				if (i == 0)
+					item_rect.position = pos;
+				else
+					item_rect.expand_to(pos);
+			}
+			rect_cache_dirty = false;
+		} else {
+			if (polygon.size() == 0) {
+				item_rect = Rect2();
+			} else {
+				Vector2 d = Vector2(LINE_GRAB_WIDTH, LINE_GRAB_WIDTH);
+				item_rect = Rect2(polygon[0] - d, 2 * d);
+				for (int i = 1; i < polygon.size(); i++) {
+					item_rect.expand_to(polygon[i] - d);
+					item_rect.expand_to(polygon[i] + d);
+				}
+			}
+		}
+	}
+
+	return item_rect;
+}
+
+bool OccluderPolygon2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
+
+	if (closed) {
+		return Geometry::is_point_in_polygon(p_point, Variant(polygon));
+	} else {
+		const real_t d = LINE_GRAB_WIDTH / 2 + p_tolerance;
+		PoolVector<Vector2>::Read points = polygon.read();
+		for (int i = 0; i < polygon.size() - 1; i++) {
+			Vector2 p = Geometry::get_closest_point_to_segment_2d(p_point, &points[i]);
+			if (p.distance_to(p_point) <= d)
+				return true;
+		}
+
+		return false;
+	}
+}
+
 void OccluderPolygon2D::set_polygon(const PoolVector<Vector2> &p_polygon) {
 
 	polygon = p_polygon;
+	rect_cache_dirty = true;
 	VS::get_singleton()->canvas_occluder_polygon_set_shape(occ_polygon, p_polygon, closed);
 	emit_changed();
 }
@@ -100,6 +150,7 @@ OccluderPolygon2D::OccluderPolygon2D() {
 	occ_polygon = VS::get_singleton()->canvas_occluder_polygon_create();
 	closed = true;
 	cull = CULL_DISABLED;
+	rect_cache_dirty = true;
 }
 
 OccluderPolygon2D::~OccluderPolygon2D() {
@@ -164,6 +215,16 @@ void LightOccluder2D::_notification(int p_what) {
 	}
 }
 
+Rect2 LightOccluder2D::_edit_get_rect() const {
+
+	return occluder_polygon.is_valid() ? occluder_polygon->_edit_get_rect() : Rect2();
+}
+
+bool LightOccluder2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
+
+	return occluder_polygon.is_valid() ? occluder_polygon->_edit_is_selected_on_click(p_point, p_tolerance) : false;
+}
+
 void LightOccluder2D::set_occluder_polygon(const Ref<OccluderPolygon2D> &p_polygon) {
 
 #ifdef DEBUG_ENABLED
diff --git a/scene/2d/light_occluder_2d.h b/scene/2d/light_occluder_2d.h
index 498d65d764..7931cd0b30 100644
--- a/scene/2d/light_occluder_2d.h
+++ b/scene/2d/light_occluder_2d.h
@@ -50,10 +50,16 @@ private:
 	bool closed;
 	CullMode cull;
 
+	mutable Rect2 item_rect;
+	mutable bool rect_cache_dirty;
+
 protected:
 	static void _bind_methods();
 
 public:
+	virtual Rect2 _edit_get_rect() const;
+	virtual bool _edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const;
+
 	void set_polygon(const PoolVector<Vector2> &p_polygon);
 	PoolVector<Vector2> get_polygon() const;
 
@@ -85,6 +91,9 @@ protected:
 	static void _bind_methods();
 
 public:
+	virtual Rect2 _edit_get_rect() const;
+	virtual bool _edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const;
+
 	void set_occluder_polygon(const Ref<OccluderPolygon2D> &p_polygon);
 	Ref<OccluderPolygon2D> get_occluder_polygon() const;
 
diff --git a/scene/2d/line_2d.cpp b/scene/2d/line_2d.cpp
index 105eb82afb..ba06b3ebff 100644
--- a/scene/2d/line_2d.cpp
+++ b/scene/2d/line_2d.cpp
@@ -112,8 +112,20 @@ int Line2D::get_point_count() const {
 	return _points.size();
 }
 
-void Line2D::add_point(Vector2 pos) {
-	_points.append(pos);
+void Line2D::clear_points() {
+	int count = _points.size();
+	if (count > 0) {
+		_points.resize(0);
+		update();
+	}
+}
+
+void Line2D::add_point(Vector2 pos, int atpos) {
+	if (atpos < 0 || _points.size() < atpos) {
+		_points.append(pos);
+	} else {
+		_points.insert(atpos, pos);
+	}
 	update();
 }
 
@@ -310,9 +322,11 @@ void Line2D::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_point_count"), &Line2D::get_point_count);
 
-	ClassDB::bind_method(D_METHOD("add_point", "position"), &Line2D::add_point);
+	ClassDB::bind_method(D_METHOD("add_point", "position", "at_position"), &Line2D::add_point, DEFVAL(-1));
 	ClassDB::bind_method(D_METHOD("remove_point", "i"), &Line2D::remove_point);
 
+	ClassDB::bind_method(D_METHOD("clear_points"), &Line2D::clear_points);
+
 	ClassDB::bind_method(D_METHOD("set_width", "width"), &Line2D::set_width);
 	ClassDB::bind_method(D_METHOD("get_width"), &Line2D::get_width);
 
diff --git a/scene/2d/line_2d.h b/scene/2d/line_2d.h
index 5bbd38e460..8a6f7b2dc5 100644
--- a/scene/2d/line_2d.h
+++ b/scene/2d/line_2d.h
@@ -70,7 +70,9 @@ public:
 
 	int get_point_count() const;
 
-	void add_point(Vector2 pos);
+	void clear_points();
+
+	void add_point(Vector2 pos, int atpos = -1);
 	void remove_point(int i);
 
 	void set_width(float width);
diff --git a/scene/2d/navigation_2d.cpp b/scene/2d/navigation_2d.cpp
index 57e0a5b118..72b5f2fb12 100644
--- a/scene/2d/navigation_2d.cpp
+++ b/scene/2d/navigation_2d.cpp
@@ -542,7 +542,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2 &p_start, const Vect
 
 				if (CLOCK_TANGENT(apex_point, portal_left, left) >= 0) {
 					//process
-					if (portal_left.distance_squared_to(apex_point) < CMP_EPSILON || CLOCK_TANGENT(apex_point, left, portal_right) > 0) {
+					if (Math::is_zero_approx(portal_left.distance_squared_to(apex_point)) || CLOCK_TANGENT(apex_point, left, portal_right) > 0) {
 						left_poly = p;
 						portal_left = left;
 					} else {
@@ -552,7 +552,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2 &p_start, const Vect
 						left_poly = p;
 						portal_left = apex_point;
 						portal_right = apex_point;
-						if (!path.size() || path[path.size() - 1].distance_to(apex_point) > CMP_EPSILON)
+						if (!path.size() || !Math::is_zero_approx(path[path.size() - 1].distance_to(apex_point)))
 							path.push_back(apex_point);
 						skip = true;
 					}
@@ -560,7 +560,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2 &p_start, const Vect
 
 				if (!skip && CLOCK_TANGENT(apex_point, portal_right, right) <= 0) {
 					//process
-					if (portal_right.distance_squared_to(apex_point) < CMP_EPSILON || CLOCK_TANGENT(apex_point, right, portal_left) < 0) {
+					if (Math::is_zero_approx(portal_right.distance_squared_to(apex_point)) || CLOCK_TANGENT(apex_point, right, portal_left) < 0) {
 						right_poly = p;
 						portal_right = right;
 					} else {
@@ -570,7 +570,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2 &p_start, const Vect
 						right_poly = p;
 						portal_right = apex_point;
 						portal_left = apex_point;
-						if (!path.size() || path[path.size() - 1].distance_to(apex_point) > CMP_EPSILON)
+						if (!path.size() || !Math::is_zero_approx(path[path.size() - 1].distance_to(apex_point)))
 							path.push_back(apex_point);
 					}
 				}
@@ -596,7 +596,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2 &p_start, const Vect
 			}
 		}
 
-		if (!path.size() || path[path.size() - 1].distance_squared_to(begin_point) > CMP_EPSILON) {
+		if (!path.size() || !Math::is_zero_approx(path[path.size() - 1].distance_squared_to(begin_point))) {
 			path.push_back(begin_point); // Add the begin point
 		} else {
 			path.write[path.size() - 1] = begin_point; // Replace first midpoint by the exact begin point
@@ -604,7 +604,7 @@ Vector<Vector2> Navigation2D::get_simple_path(const Vector2 &p_start, const Vect
 
 		path.invert();
 
-		if (path.size() <= 1 || path[path.size() - 1].distance_squared_to(end_point) > CMP_EPSILON) {
+		if (path.size() <= 1 || !Math::is_zero_approx(path[path.size() - 1].distance_squared_to(end_point))) {
 			path.push_back(end_point); // Add the end point
 		} else {
 			path.write[path.size() - 1] = end_point; // Replace last midpoint by the exact end point
diff --git a/scene/2d/parallax_background.cpp b/scene/2d/parallax_background.cpp
index 96e13396c5..4ead1bbd1e 100644
--- a/scene/2d/parallax_background.cpp
+++ b/scene/2d/parallax_background.cpp
@@ -207,7 +207,7 @@ void ParallaxBackground::_bind_methods() {
 ParallaxBackground::ParallaxBackground() {
 
 	scale = 1.0;
-	set_layer(-1); //behind all by default
+	set_layer(-100); //behind all by default
 
 	base_scale = Vector2(1, 1);
 	ignore_camera_zoom = false;
diff --git a/scene/2d/parallax_layer.cpp b/scene/2d/parallax_layer.cpp
index baf5b5967b..9a6b63b9a3 100644
--- a/scene/2d/parallax_layer.cpp
+++ b/scene/2d/parallax_layer.cpp
@@ -105,6 +105,11 @@ void ParallaxLayer::_notification(int p_what) {
 			orig_scale = get_scale();
 			_update_mirroring();
 		} break;
+		case NOTIFICATION_EXIT_TREE: {
+
+			set_position(orig_offset);
+			set_scale(orig_scale);
+		} break;
 	}
 }
 
diff --git a/scene/2d/path_2d.cpp b/scene/2d/path_2d.cpp
index fec861ad2f..4097006b33 100644
--- a/scene/2d/path_2d.cpp
+++ b/scene/2d/path_2d.cpp
@@ -95,7 +95,7 @@ void Path2D::_notification(int p_what) {
 			return;
 		}
 
-#if TOOLS_ENABLED
+#ifdef TOOLS_ENABLED
 		const float line_width = 2 * EDSCALE;
 #else
 		const float line_width = 2;
diff --git a/scene/2d/physics_body_2d.cpp b/scene/2d/physics_body_2d.cpp
index 690f1d4b4a..578c9aa5f9 100644
--- a/scene/2d/physics_body_2d.cpp
+++ b/scene/2d/physics_body_2d.cpp
@@ -1275,9 +1275,6 @@ Vector2 KinematicBody2D::move_and_slide(const Vector2 &p_linear_velocity, const
 
 			if (collided) {
 				found_collision = true;
-			}
-
-			if (collided) {
 
 				colliders.push_back(collision);
 				motion = collision.remainder;
diff --git a/scene/2d/tile_map.cpp b/scene/2d/tile_map.cpp
index ed0a9c4915..b321bcf3ce 100644
--- a/scene/2d/tile_map.cpp
+++ b/scene/2d/tile_map.cpp
@@ -749,7 +749,10 @@ void TileMap::set_cellv(const Vector2 &p_pos, int p_tile, bool p_flip_x, bool p_
 
 void TileMap::_set_celld(const Vector2 &p_pos, const Dictionary &p_data) {
 
-	set_cell(p_pos.x, p_pos.y, p_data["id"], p_data["flip_h"], p_data["flip_y"], p_data["transpose"], p_data["auto_coord"]);
+	Variant v_pos_x = p_pos.x, v_pos_y = p_pos.y, v_tile = p_data["id"], v_flip_h = p_data["flip_h"], v_flip_v = p_data["flip_y"], v_transpose = p_data["transpose"], v_autotile_coord = p_data["auto_coord"];
+	const Variant *args[7] = { &v_pos_x, &v_pos_y, &v_tile, &v_flip_h, &v_flip_v, &v_transpose, &v_autotile_coord };
+	Variant::CallError ce;
+	call("set_cell", args, 7, ce);
 }
 
 void TileMap::set_cell(int p_x, int p_y, int p_tile, bool p_flip_x, bool p_flip_y, bool p_transpose, Vector2 p_autotile_coord) {
@@ -773,6 +776,7 @@ void TileMap::set_cell(int p_x, int p_y, int p_tile, bool p_flip_x, bool p_flip_
 		else
 			_make_quadrant_dirty(Q);
 
+		used_size_cache_dirty = true;
 		return;
 	}
 
@@ -1391,18 +1395,21 @@ Vector2 TileMap::_map_to_world(int p_x, int p_y, bool p_ignore_ofs) const {
 	if (!p_ignore_ofs) {
 		switch (half_offset) {
 
-			case HALF_OFFSET_X: {
+			case HALF_OFFSET_X:
+			case HALF_OFFSET_NEGATIVE_X: {
 				if (ABS(p_y) & 1) {
 
-					ret += get_cell_transform()[0] * 0.5;
+					ret += get_cell_transform()[0] * (half_offset == HALF_OFFSET_X ? 0.5 : -0.5);
 				}
 			} break;
-			case HALF_OFFSET_Y: {
+			case HALF_OFFSET_Y:
+			case HALF_OFFSET_NEGATIVE_Y: {
 				if (ABS(p_x) & 1) {
-					ret += get_cell_transform()[1] * 0.5;
+					ret += get_cell_transform()[1] * (half_offset == HALF_OFFSET_Y ? 0.5 : -0.5);
 				}
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 	return ret;
@@ -1462,12 +1469,23 @@ Vector2 TileMap::world_to_map(const Vector2 &p_pos) const {
 				ret.x -= 0.5;
 			}
 		} break;
+		case HALF_OFFSET_NEGATIVE_X: {
+			if (ret.y > 0 ? int(ret.y) & 1 : (int(ret.y) - 1) & 1) {
+				ret.x += 0.5;
+			}
+		} break;
 		case HALF_OFFSET_Y: {
 			if (ret.x > 0 ? int(ret.x) & 1 : (int(ret.x) - 1) & 1) {
 				ret.y -= 0.5;
 			}
 		} break;
-		default: {}
+		case HALF_OFFSET_NEGATIVE_Y: {
+			if (ret.x > 0 ? int(ret.x) & 1 : (int(ret.x) - 1) & 1) {
+				ret.y += 0.5;
+			}
+		} break;
+		default: {
+		}
 	}
 
 	// Account for precision errors on the border (GH-23250).
@@ -1677,7 +1695,7 @@ void TileMap::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "cell_size", PROPERTY_HINT_RANGE, "1,8192,1"), "set_cell_size", "get_cell_size");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "cell_quadrant_size", PROPERTY_HINT_RANGE, "1,128,1"), "set_quadrant_size", "get_quadrant_size");
 	ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "cell_custom_transform"), "set_custom_transform", "get_custom_transform");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "cell_half_offset", PROPERTY_HINT_ENUM, "Offset X,Offset Y,Disabled"), "set_half_offset", "get_half_offset");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "cell_half_offset", PROPERTY_HINT_ENUM, "Offset X,Offset Y,Disabled,Offset Negative X,Offset Negative Y"), "set_half_offset", "get_half_offset");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "cell_tile_origin", PROPERTY_HINT_ENUM, "Top Left,Center,Bottom Left"), "set_tile_origin", "get_tile_origin");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "cell_y_sort"), "set_y_sort_mode", "is_y_sort_mode_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "cell_clip_uv"), "set_clip_uv", "get_clip_uv");
@@ -1703,6 +1721,8 @@ void TileMap::_bind_methods() {
 	BIND_ENUM_CONSTANT(HALF_OFFSET_X);
 	BIND_ENUM_CONSTANT(HALF_OFFSET_Y);
 	BIND_ENUM_CONSTANT(HALF_OFFSET_DISABLED);
+	BIND_ENUM_CONSTANT(HALF_OFFSET_NEGATIVE_X);
+	BIND_ENUM_CONSTANT(HALF_OFFSET_NEGATIVE_Y);
 
 	BIND_ENUM_CONSTANT(TILE_ORIGIN_TOP_LEFT);
 	BIND_ENUM_CONSTANT(TILE_ORIGIN_CENTER);
diff --git a/scene/2d/tile_map.h b/scene/2d/tile_map.h
index e450e1e256..6a1467aa48 100644
--- a/scene/2d/tile_map.h
+++ b/scene/2d/tile_map.h
@@ -52,6 +52,8 @@ public:
 		HALF_OFFSET_X,
 		HALF_OFFSET_Y,
 		HALF_OFFSET_DISABLED,
+		HALF_OFFSET_NEGATIVE_X,
+		HALF_OFFSET_NEGATIVE_Y,
 	};
 
 	enum TileOrigin {
diff --git a/scene/3d/area.cpp b/scene/3d/area.cpp
index 13d9181082..3557f0425c 100644
--- a/scene/3d/area.cpp
+++ b/scene/3d/area.cpp
@@ -356,7 +356,9 @@ void Area::_area_inout(int p_status, const RID &p_area, int p_instance, int p_ar
 
 	Map<ObjectID, AreaState>::Element *E = area_map.find(objid);
 
-	ERR_FAIL_COND(!area_in && !E);
+	if (!area_in && !E) {
+		return; //likely removed from the tree
+	}
 
 	locked = true;
 
diff --git a/scene/3d/arvr_nodes.cpp b/scene/3d/arvr_nodes.cpp
index 17b698c1b8..52fa96ee4a 100644
--- a/scene/3d/arvr_nodes.cpp
+++ b/scene/3d/arvr_nodes.cpp
@@ -233,6 +233,13 @@ void ARVRController::_notification(int p_what) {
 				} else {
 					button_states = 0;
 				};
+
+				// check for an updated mesh
+				Ref<Mesh> trackerMesh = tracker->get_mesh();
+				if (mesh != trackerMesh) {
+					mesh = trackerMesh;
+					emit_signal("mesh_updated", mesh);
+				}
 			};
 		}; break;
 		default:
@@ -258,8 +265,11 @@ void ARVRController::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_rumble", "rumble"), &ARVRController::set_rumble);
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "rumble", PROPERTY_HINT_RANGE, "0.0,1.0,0.01"), "set_rumble", "get_rumble");
 
+	ClassDB::bind_method(D_METHOD("get_mesh"), &ARVRController::get_mesh);
+
 	ADD_SIGNAL(MethodInfo("button_pressed", PropertyInfo(Variant::INT, "button")));
 	ADD_SIGNAL(MethodInfo("button_release", PropertyInfo(Variant::INT, "button")));
+	ADD_SIGNAL(MethodInfo("mesh_updated", PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh")));
 };
 
 void ARVRController::set_controller_id(int p_controller_id) {
@@ -341,6 +351,10 @@ void ARVRController::set_rumble(real_t p_rumble) {
 	};
 };
 
+Ref<Mesh> ARVRController::get_mesh() const {
+	return mesh;
+}
+
 bool ARVRController::get_is_active() const {
 	return is_active;
 };
@@ -365,11 +379,11 @@ String ARVRController::get_configuration_warning() const {
 	// must be child node of ARVROrigin!
 	ARVROrigin *origin = Object::cast_to<ARVROrigin>(get_parent());
 	if (origin == NULL) {
-		return TTR("ARVRController must have an ARVROrigin node as its parent");
+		return TTR("ARVRController must have an ARVROrigin node as its parent.");
 	};
 
 	if (controller_id == 0) {
-		return TTR("The controller id must not be 0 or this controller will not be bound to an actual controller");
+		return TTR("The controller ID must not be 0 or this controller won't be bound to an actual controller.");
 	};
 
 	return String();
@@ -423,6 +437,13 @@ void ARVRAnchor::_notification(int p_what) {
 
 				// apply our reference frame and set our transform
 				set_transform(arvr_server->get_reference_frame() * transform);
+
+				// check for an updated mesh
+				Ref<Mesh> trackerMesh = tracker->get_mesh();
+				if (mesh != trackerMesh) {
+					mesh = trackerMesh;
+					emit_signal("mesh_updated", mesh);
+				}
 			};
 		}; break;
 		default:
@@ -441,6 +462,9 @@ void ARVRAnchor::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_size"), &ARVRAnchor::get_size);
 
 	ClassDB::bind_method(D_METHOD("get_plane"), &ARVRAnchor::get_plane);
+
+	ClassDB::bind_method(D_METHOD("get_mesh"), &ARVRAnchor::get_mesh);
+	ADD_SIGNAL(MethodInfo("mesh_updated", PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh")));
 };
 
 void ARVRAnchor::set_anchor_id(int p_anchor_id) {
@@ -482,11 +506,11 @@ String ARVRAnchor::get_configuration_warning() const {
 	// must be child node of ARVROrigin!
 	ARVROrigin *origin = Object::cast_to<ARVROrigin>(get_parent());
 	if (origin == NULL) {
-		return TTR("ARVRAnchor must have an ARVROrigin node as its parent");
+		return TTR("ARVRAnchor must have an ARVROrigin node as its parent.");
 	};
 
 	if (anchor_id == 0) {
-		return TTR("The anchor id must not be 0 or this anchor will not be bound to an actual anchor");
+		return TTR("The anchor ID must not be 0 or this anchor won't be bound to an actual anchor.");
 	};
 
 	return String();
@@ -501,6 +525,10 @@ Plane ARVRAnchor::get_plane() const {
 	return plane;
 };
 
+Ref<Mesh> ARVRAnchor::get_mesh() const {
+	return mesh;
+}
+
 ARVRAnchor::ARVRAnchor() {
 	anchor_id = 0;
 	is_active = true;
@@ -517,7 +545,7 @@ String ARVROrigin::get_configuration_warning() const {
 		return String();
 
 	if (tracked_camera == NULL)
-		return TTR("ARVROrigin requires an ARVRCamera child node");
+		return TTR("ARVROrigin requires an ARVRCamera child node.");
 
 	return String();
 };
@@ -555,6 +583,10 @@ void ARVROrigin::set_world_scale(float p_world_scale) {
 };
 
 void ARVROrigin::_notification(int p_what) {
+	// get our ARVRServer
+	ARVRServer *arvr_server = ARVRServer::get_singleton();
+	ERR_FAIL_NULL(arvr_server);
+
 	switch (p_what) {
 		case NOTIFICATION_ENTER_TREE: {
 			set_process_internal(true);
@@ -563,10 +595,6 @@ void ARVROrigin::_notification(int p_what) {
 			set_process_internal(false);
 		}; break;
 		case NOTIFICATION_INTERNAL_PROCESS: {
-			// get our ARVRServer
-			ARVRServer *arvr_server = ARVRServer::get_singleton();
-			ERR_FAIL_NULL(arvr_server);
-
 			// set our world origin to our node transform
 			arvr_server->set_world_origin(get_global_transform());
 
@@ -583,6 +611,14 @@ void ARVROrigin::_notification(int p_what) {
 		default:
 			break;
 	};
+
+	// send our notification to all active ARVR interfaces, they may need to react to it also
+	for (int i = 0; i < arvr_server->get_interface_count(); i++) {
+		Ref<ARVRInterface> interface = arvr_server->get_interface(i);
+		if (interface.is_valid() && interface->is_initialized()) {
+			interface->notification(p_what);
+		}
+	}
 };
 
 ARVROrigin::ARVROrigin() {
diff --git a/scene/3d/arvr_nodes.h b/scene/3d/arvr_nodes.h
index 523bc112c1..0833e18d48 100644
--- a/scene/3d/arvr_nodes.h
+++ b/scene/3d/arvr_nodes.h
@@ -33,6 +33,7 @@
 
 #include "scene/3d/camera.h"
 #include "scene/3d/spatial.h"
+#include "scene/resources/mesh.h"
 #include "servers/arvr/arvr_positional_tracker.h"
 
 /**
@@ -75,6 +76,7 @@ private:
 	int controller_id;
 	bool is_active;
 	int button_states;
+	Ref<Mesh> mesh;
 
 protected:
 	void _notification(int p_what);
@@ -95,6 +97,8 @@ public:
 	bool get_is_active() const;
 	ARVRPositionalTracker::TrackerHand get_hand() const;
 
+	Ref<Mesh> get_mesh(void) const;
+
 	String get_configuration_warning() const;
 
 	ARVRController();
@@ -113,6 +117,7 @@ private:
 	int anchor_id;
 	bool is_active;
 	Vector3 size;
+	Ref<Mesh> mesh;
 
 protected:
 	void _notification(int p_what);
@@ -128,6 +133,8 @@ public:
 
 	Plane get_plane() const;
 
+	Ref<Mesh> get_mesh(void) const;
+
 	String get_configuration_warning() const;
 
 	ARVRAnchor();
diff --git a/scene/3d/audio_stream_player_3d.cpp b/scene/3d/audio_stream_player_3d.cpp
index 4b3934c4ea..ff8c218575 100644
--- a/scene/3d/audio_stream_player_3d.cpp
+++ b/scene/3d/audio_stream_player_3d.cpp
@@ -38,7 +38,7 @@
 void AudioStreamPlayer3D::_mix_audio() {
 
 	if (!stream_playback.is_valid() || !active ||
-			(stream_paused && !stream_fade_out)) {
+			(stream_paused && !stream_paused_fade_out)) {
 		return;
 	}
 
@@ -53,7 +53,7 @@ void AudioStreamPlayer3D::_mix_audio() {
 	AudioFrame *buffer = mix_buffer.ptrw();
 	int buffer_size = mix_buffer.size();
 
-	if (stream_fade_out) {
+	if (stream_paused_fade_out) {
 		// Short fadeout ramp
 		buffer_size = MIN(buffer_size, 128);
 	}
@@ -109,10 +109,10 @@ void AudioStreamPlayer3D::_mix_audio() {
 		int buffers = AudioServer::get_singleton()->get_channel_count();
 
 		for (int k = 0; k < buffers; k++) {
-			AudioFrame target_volume = stream_fade_out ? AudioFrame(0.f, 0.f) : current.vol[k];
-			AudioFrame vol_prev = stream_fade_in ? AudioFrame(0.f, 0.f) : prev_outputs[i].vol[k];
+			AudioFrame target_volume = stream_paused_fade_out ? AudioFrame(0.f, 0.f) : current.vol[k];
+			AudioFrame vol_prev = stream_paused_fade_in ? AudioFrame(0.f, 0.f) : prev_outputs[i].vol[k];
 			AudioFrame vol_inc = (target_volume - vol_prev) / float(buffer_size);
-			AudioFrame vol = stream_fade_in ? AudioFrame(0.f, 0.f) : current.vol[k];
+			AudioFrame vol = stream_paused_fade_in ? AudioFrame(0.f, 0.f) : current.vol[k];
 
 			if (!AudioServer::get_singleton()->thread_has_channel_mix_buffer(current.bus_index, k))
 				continue; //may have been deleted, will be updated on process
@@ -198,15 +198,9 @@ void AudioStreamPlayer3D::_mix_audio() {
 		active = false;
 	}
 
-	if (stream_stop) {
-		active = false;
-		set_physics_process_internal(false);
-		setplay = -1;
-	}
-
 	output_ready = false;
-	stream_fade_in = false;
-	stream_fade_out = false;
+	stream_paused_fade_in = false;
+	stream_paused_fade_out = false;
 }
 
 float AudioStreamPlayer3D::_get_attenuation_db(float p_distance) const {
@@ -224,6 +218,7 @@ float AudioStreamPlayer3D::_get_attenuation_db(float p_distance) const {
 		case ATTENUATION_LOGARITHMIC: {
 			att = -20 * Math::log(p_distance / unit_size + CMP_EPSILON);
 		} break;
+		case ATTENUATION_DISABLED: break;
 		default: {
 			ERR_PRINT("Unknown attenuation type");
 			break;
@@ -662,7 +657,6 @@ float AudioStreamPlayer3D::get_pitch_scale() const {
 void AudioStreamPlayer3D::play(float p_from_pos) {
 
 	if (stream_playback.is_valid()) {
-		stream_stop = false;
 		active = true;
 		setplay = p_from_pos;
 		output_ready = false;
@@ -680,8 +674,9 @@ void AudioStreamPlayer3D::seek(float p_seconds) {
 void AudioStreamPlayer3D::stop() {
 
 	if (stream_playback.is_valid()) {
-		stream_stop = true;
-		stream_fade_out = true;
+		active = false;
+		set_physics_process_internal(false);
+		setplay = -1;
 	}
 }
 
@@ -831,7 +826,7 @@ float AudioStreamPlayer3D::get_attenuation_filter_db() const {
 }
 
 void AudioStreamPlayer3D::set_attenuation_model(AttenuationModel p_model) {
-	ERR_FAIL_INDEX(p_model, 3);
+	ERR_FAIL_INDEX((int)p_model, 4);
 	attenuation_model = p_model;
 }
 
@@ -877,8 +872,8 @@ void AudioStreamPlayer3D::set_stream_paused(bool p_pause) {
 
 	if (p_pause != stream_paused) {
 		stream_paused = p_pause;
-		stream_fade_in = stream_paused ? false : true;
-		stream_fade_out = stream_paused ? true : false;
+		stream_paused_fade_in = stream_paused ? false : true;
+		stream_paused_fade_out = stream_paused ? true : false;
 	}
 }
 
@@ -887,6 +882,10 @@ bool AudioStreamPlayer3D::get_stream_paused() const {
 	return stream_paused;
 }
 
+Ref<AudioStreamPlayback> AudioStreamPlayer3D::get_stream_playback() {
+	return stream_playback;
+}
+
 void AudioStreamPlayer3D::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer3D::set_stream);
@@ -953,10 +952,12 @@ void AudioStreamPlayer3D::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer3D::set_stream_paused);
 	ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer3D::get_stream_paused);
 
+	ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer3D::get_stream_playback);
+
 	ClassDB::bind_method(D_METHOD("_bus_layout_changed"), &AudioStreamPlayer3D::_bus_layout_changed);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "attenuation_model", PROPERTY_HINT_ENUM, "Inverse,InverseSquare,Log"), "set_attenuation_model", "get_attenuation_model");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "attenuation_model", PROPERTY_HINT_ENUM, "Inverse,InverseSquare,Log,Disabled"), "set_attenuation_model", "get_attenuation_model");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_db", PROPERTY_HINT_RANGE, "-80,80"), "set_unit_db", "get_unit_db");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_size", PROPERTY_HINT_RANGE, "0.1,100,0.1"), "set_unit_size", "get_unit_size");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "max_db", PROPERTY_HINT_RANGE, "-24,6"), "set_max_db", "get_max_db");
@@ -981,6 +982,7 @@ void AudioStreamPlayer3D::_bind_methods() {
 	BIND_ENUM_CONSTANT(ATTENUATION_INVERSE_DISTANCE);
 	BIND_ENUM_CONSTANT(ATTENUATION_INVERSE_SQUARE_DISTANCE);
 	BIND_ENUM_CONSTANT(ATTENUATION_LOGARITHMIC);
+	BIND_ENUM_CONSTANT(ATTENUATION_DISABLED);
 
 	BIND_ENUM_CONSTANT(OUT_OF_RANGE_MIX);
 	BIND_ENUM_CONSTANT(OUT_OF_RANGE_PAUSE);
@@ -1016,9 +1018,8 @@ AudioStreamPlayer3D::AudioStreamPlayer3D() {
 	out_of_range_mode = OUT_OF_RANGE_MIX;
 	doppler_tracking = DOPPLER_TRACKING_DISABLED;
 	stream_paused = false;
-	stream_fade_in = false;
-	stream_fade_out = false;
-	stream_stop = false;
+	stream_paused_fade_in = false;
+	stream_paused_fade_out = false;
 
 	velocity_tracker.instance();
 	AudioServer::get_singleton()->connect("bus_layout_changed", this, "_bus_layout_changed");
diff --git a/scene/3d/audio_stream_player_3d.h b/scene/3d/audio_stream_player_3d.h
index e467c170fb..98bc74b2e4 100644
--- a/scene/3d/audio_stream_player_3d.h
+++ b/scene/3d/audio_stream_player_3d.h
@@ -46,6 +46,7 @@ public:
 		ATTENUATION_INVERSE_DISTANCE,
 		ATTENUATION_INVERSE_SQUARE_DISTANCE,
 		ATTENUATION_LOGARITHMIC,
+		ATTENUATION_DISABLED,
 	};
 
 	enum OutOfRangeMode {
@@ -109,9 +110,8 @@ private:
 	float pitch_scale;
 	bool autoplay;
 	bool stream_paused;
-	bool stream_fade_in;
-	bool stream_fade_out;
-	bool stream_stop;
+	bool stream_paused_fade_in;
+	bool stream_paused_fade_out;
 	StringName bus;
 
 	void _mix_audio();
@@ -206,6 +206,8 @@ public:
 	void set_stream_paused(bool p_pause);
 	bool get_stream_paused() const;
 
+	Ref<AudioStreamPlayback> get_stream_playback();
+
 	AudioStreamPlayer3D();
 	~AudioStreamPlayer3D();
 };
diff --git a/scene/3d/camera.cpp b/scene/3d/camera.cpp
index 368cebeeab..8b91f56344 100644
--- a/scene/3d/camera.cpp
+++ b/scene/3d/camera.cpp
@@ -55,16 +55,23 @@ void Camera::_update_camera_mode() {
 		case PROJECTION_ORTHOGONAL: {
 			set_orthogonal(size, near, far);
 		} break;
+		case PROJECTION_FRUSTUM: {
+			set_frustum(size, frustum_offset, near, far);
+		} break;
 	}
 }
 
 void Camera::_validate_property(PropertyInfo &p_property) const {
 	if (p_property.name == "fov") {
-		if (mode == PROJECTION_ORTHOGONAL) {
+		if (mode != PROJECTION_PERSPECTIVE) {
 			p_property.usage = PROPERTY_USAGE_NOEDITOR;
 		}
 	} else if (p_property.name == "size") {
-		if (mode == PROJECTION_PERSPECTIVE) {
+		if (mode != PROJECTION_ORTHOGONAL && mode != PROJECTION_FRUSTUM) {
+			p_property.usage = PROPERTY_USAGE_NOEDITOR;
+		}
+	} else if (p_property.name == "frustum_offset") {
+		if (mode != PROJECTION_FRUSTUM) {
 			p_property.usage = PROPERTY_USAGE_NOEDITOR;
 		}
 	}
@@ -177,8 +184,24 @@ void Camera::set_orthogonal(float p_size, float p_z_near, float p_z_far) {
 	update_gizmo();
 }
 
+void Camera::set_frustum(float p_size, Vector2 p_offset, float p_z_near, float p_z_far) {
+	if (!force_change && size == p_size && frustum_offset == p_offset && p_z_near == near && p_z_far == far && mode == PROJECTION_FRUSTUM)
+		return;
+
+	size = p_size;
+	frustum_offset = p_offset;
+
+	near = p_z_near;
+	far = p_z_far;
+	mode = PROJECTION_FRUSTUM;
+	force_change = false;
+
+	VisualServer::get_singleton()->camera_set_frustum(camera, size, frustum_offset, near, far);
+	update_gizmo();
+}
+
 void Camera::set_projection(Camera::Projection p_mode) {
-	if (p_mode == PROJECTION_PERSPECTIVE || p_mode == PROJECTION_ORTHOGONAL) {
+	if (p_mode == PROJECTION_PERSPECTIVE || p_mode == PROJECTION_ORTHOGONAL || p_mode == PROJECTION_FRUSTUM) {
 		mode = p_mode;
 		_update_camera_mode();
 		_change_notify();
@@ -470,16 +493,19 @@ void Camera::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("project_position", "screen_point"), &Camera::project_position);
 	ClassDB::bind_method(D_METHOD("set_perspective", "fov", "z_near", "z_far"), &Camera::set_perspective);
 	ClassDB::bind_method(D_METHOD("set_orthogonal", "size", "z_near", "z_far"), &Camera::set_orthogonal);
+	ClassDB::bind_method(D_METHOD("set_frustum", "size", "offset", "z_near", "z_far"), &Camera::set_frustum);
 	ClassDB::bind_method(D_METHOD("make_current"), &Camera::make_current);
 	ClassDB::bind_method(D_METHOD("clear_current", "enable_next"), &Camera::clear_current, DEFVAL(true));
 	ClassDB::bind_method(D_METHOD("set_current"), &Camera::set_current);
 	ClassDB::bind_method(D_METHOD("is_current"), &Camera::is_current);
 	ClassDB::bind_method(D_METHOD("get_camera_transform"), &Camera::get_camera_transform);
 	ClassDB::bind_method(D_METHOD("get_fov"), &Camera::get_fov);
+	ClassDB::bind_method(D_METHOD("get_frustum_offset"), &Camera::get_frustum_offset);
 	ClassDB::bind_method(D_METHOD("get_size"), &Camera::get_size);
 	ClassDB::bind_method(D_METHOD("get_zfar"), &Camera::get_zfar);
 	ClassDB::bind_method(D_METHOD("get_znear"), &Camera::get_znear);
 	ClassDB::bind_method(D_METHOD("set_fov"), &Camera::set_fov);
+	ClassDB::bind_method(D_METHOD("set_frustum_offset"), &Camera::set_frustum_offset);
 	ClassDB::bind_method(D_METHOD("set_size"), &Camera::set_size);
 	ClassDB::bind_method(D_METHOD("set_zfar"), &Camera::set_zfar);
 	ClassDB::bind_method(D_METHOD("set_znear"), &Camera::set_znear);
@@ -510,15 +536,17 @@ void Camera::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "h_offset"), "set_h_offset", "get_h_offset");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "v_offset"), "set_v_offset", "get_v_offset");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "doppler_tracking", PROPERTY_HINT_ENUM, "Disabled,Idle,Physics"), "set_doppler_tracking", "get_doppler_tracking");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "projection", PROPERTY_HINT_ENUM, "Perspective,Orthogonal"), "set_projection", "get_projection");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "projection", PROPERTY_HINT_ENUM, "Perspective,Orthogonal,Frustum"), "set_projection", "get_projection");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "current"), "set_current", "is_current");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "fov", PROPERTY_HINT_RANGE, "1,179,0.1"), "set_fov", "get_fov");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "size", PROPERTY_HINT_RANGE, "0.1,16384,0.01"), "set_size", "get_size");
+	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "frustum_offset"), "set_frustum_offset", "get_frustum_offset");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "near", PROPERTY_HINT_EXP_RANGE, "0.01,8192,0.01,or_greater"), "set_znear", "get_znear");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "far", PROPERTY_HINT_EXP_RANGE, "0.1,8192,0.1,or_greater"), "set_zfar", "get_zfar");
 
 	BIND_ENUM_CONSTANT(PROJECTION_PERSPECTIVE);
 	BIND_ENUM_CONSTANT(PROJECTION_ORTHOGONAL);
+	BIND_ENUM_CONSTANT(PROJECTION_FRUSTUM);
 
 	BIND_ENUM_CONSTANT(KEEP_WIDTH);
 	BIND_ENUM_CONSTANT(KEEP_HEIGHT);
@@ -543,6 +571,10 @@ float Camera::get_znear() const {
 	return near;
 }
 
+Vector2 Camera::get_frustum_offset() const {
+	return frustum_offset;
+}
+
 float Camera::get_zfar() const {
 
 	return far;
@@ -570,6 +602,11 @@ void Camera::set_znear(float p_znear) {
 	_update_camera_mode();
 }
 
+void Camera::set_frustum_offset(Vector2 p_offset) {
+	frustum_offset = p_offset;
+	_update_camera_mode();
+}
+
 void Camera::set_zfar(float p_zfar) {
 	far = p_zfar;
 	_update_camera_mode();
@@ -648,6 +685,7 @@ Camera::Camera() {
 	camera = VisualServer::get_singleton()->camera_create();
 	size = 1;
 	fov = 0;
+	frustum_offset = Vector2();
 	near = 0;
 	far = 0;
 	current = false;
@@ -684,8 +722,9 @@ void ClippedCamera::set_process_mode(ProcessMode p_mode) {
 	if (process_mode == p_mode) {
 		return;
 	}
-	set_process_internal(p_mode == CLIP_PROCESS_IDLE);
-	set_physics_process_internal(p_mode == CLIP_PROCESS_PHYSICS);
+	process_mode = p_mode;
+	set_process_internal(process_mode == CLIP_PROCESS_IDLE);
+	set_physics_process_internal(process_mode == CLIP_PROCESS_PHYSICS);
 }
 ClippedCamera::ProcessMode ClippedCamera::get_process_mode() const {
 	return process_mode;
@@ -748,7 +787,7 @@ void ClippedCamera::_notification(int p_what) {
 
 		float csafe, cunsafe;
 		if (dspace->cast_motion(pyramid_shape, xf, cam_pos - ray_from, margin, csafe, cunsafe, exclude, collision_mask, clip_to_bodies, clip_to_areas)) {
-			clip_offset = cam_pos.distance_to(ray_from + (cam_pos - ray_from).normalized() * csafe);
+			clip_offset = cam_pos.distance_to(ray_from + (cam_pos - ray_from) * csafe);
 		}
 
 		_update_camera();
diff --git a/scene/3d/camera.h b/scene/3d/camera.h
index a531324a85..fe8cb84f0d 100644
--- a/scene/3d/camera.h
+++ b/scene/3d/camera.h
@@ -46,7 +46,8 @@ public:
 	enum Projection {
 
 		PROJECTION_PERSPECTIVE,
-		PROJECTION_ORTHOGONAL
+		PROJECTION_ORTHOGONAL,
+		PROJECTION_FRUSTUM
 	};
 
 	enum KeepAspect {
@@ -68,6 +69,7 @@ private:
 
 	float fov;
 	float size;
+	Vector2 frustum_offset;
 	float near, far;
 	float v_offset;
 	float h_offset;
@@ -110,6 +112,7 @@ public:
 
 	void set_perspective(float p_fovy_degrees, float p_z_near, float p_z_far);
 	void set_orthogonal(float p_size, float p_z_near, float p_z_far);
+	void set_frustum(float p_size, Vector2 p_offset, float p_near, float p_far);
 	void set_projection(Camera::Projection p_mode);
 
 	void make_current();
@@ -123,12 +126,15 @@ public:
 	float get_size() const;
 	float get_zfar() const;
 	float get_znear() const;
+	Vector2 get_frustum_offset() const;
+
 	Projection get_projection() const;
 
 	void set_fov(float p_fov);
 	void set_size(float p_size);
 	void set_zfar(float p_zfar);
 	void set_znear(float p_znear);
+	void set_frustum_offset(Vector2 p_offset);
 
 	virtual Transform get_camera_transform() const;
 
diff --git a/scene/3d/collision_object.cpp b/scene/3d/collision_object.cpp
index d8c2042c88..fc46cf5bdb 100644
--- a/scene/3d/collision_object.cpp
+++ b/scene/3d/collision_object.cpp
@@ -52,7 +52,7 @@ void CollisionObject::_notification(int p_what) {
 
 			_update_pickable();
 			//get space
-		};
+		} break;
 
 		case NOTIFICATION_TRANSFORM_CHANGED: {
 
@@ -259,9 +259,9 @@ void CollisionObject::shape_owner_add_shape(uint32_t p_owner, const Ref<Shape> &
 	s.index = total_subshapes;
 	s.shape = p_shape;
 	if (area) {
-		PhysicsServer::get_singleton()->area_add_shape(rid, p_shape->get_rid(), sd.xform);
+		PhysicsServer::get_singleton()->area_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
 	} else {
-		PhysicsServer::get_singleton()->body_add_shape(rid, p_shape->get_rid(), sd.xform);
+		PhysicsServer::get_singleton()->body_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
 	}
 	sd.shapes.push_back(s);
 
diff --git a/scene/3d/collision_shape.cpp b/scene/3d/collision_shape.cpp
index ac33e2b714..3190e1e0b2 100644
--- a/scene/3d/collision_shape.cpp
+++ b/scene/3d/collision_shape.cpp
@@ -65,7 +65,6 @@ void CollisionShape::make_convex_from_brothers() {
 }
 
 void CollisionShape::_update_in_shape_owner(bool p_xform_only) {
-
 	parent->shape_owner_set_transform(owner_id, get_transform());
 	if (p_xform_only)
 		return;
@@ -91,7 +90,7 @@ void CollisionShape::_notification(int p_what) {
 				_update_in_shape_owner();
 			}
 			if (get_tree()->is_debugging_collisions_hint()) {
-				_create_debug_shape();
+				_update_debug_shape();
 			}
 		} break;
 		case NOTIFICATION_LOCAL_TRANSFORM_CHANGED: {
@@ -142,17 +141,24 @@ void CollisionShape::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("make_convex_from_brothers"), &CollisionShape::make_convex_from_brothers);
 	ClassDB::set_method_flags("CollisionShape", "make_convex_from_brothers", METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR);
 
+	ClassDB::bind_method(D_METHOD("_shape_changed"), &CollisionShape::_shape_changed);
+	ClassDB::bind_method(D_METHOD("_update_debug_shape"), &CollisionShape::_update_debug_shape);
+
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape"), "set_shape", "get_shape");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled");
 }
 
 void CollisionShape::set_shape(const Ref<Shape> &p_shape) {
 
-	if (!shape.is_null())
+	if (!shape.is_null()) {
 		shape->unregister_owner(this);
+		shape->disconnect("changed", this, "_shape_changed");
+	}
 	shape = p_shape;
-	if (!shape.is_null())
+	if (!shape.is_null()) {
 		shape->register_owner(this);
+		shape->connect("changed", this, "_shape_changed");
+	}
 	update_gizmo();
 	if (parent) {
 		parent->shape_owner_clear_shapes(owner_id);
@@ -161,6 +167,8 @@ void CollisionShape::set_shape(const Ref<Shape> &p_shape) {
 		}
 	}
 
+	if (is_inside_tree())
+		_shape_changed();
 	update_configuration_warning();
 }
 
@@ -199,7 +207,8 @@ CollisionShape::~CollisionShape() {
 	//VisualServer::get_singleton()->free(indicator);
 }
 
-void CollisionShape::_create_debug_shape() {
+void CollisionShape::_update_debug_shape() {
+	debug_shape_dirty = false;
 
 	if (debug_shape) {
 		debug_shape->queue_delete();
@@ -207,15 +216,22 @@ void CollisionShape::_create_debug_shape() {
 	}
 
 	Ref<Shape> s = get_shape();
-
 	if (s.is_null())
 		return;
 
 	Ref<Mesh> mesh = s->get_debug_mesh();
-
 	MeshInstance *mi = memnew(MeshInstance);
 	mi->set_mesh(mesh);
-
 	add_child(mi);
 	debug_shape = mi;
 }
+
+void CollisionShape::_shape_changed() {
+	// If this is a heightfield shape our center may have changed
+	_update_in_shape_owner(true);
+
+	if (is_inside_tree() && get_tree()->is_debugging_collisions_hint() && !debug_shape_dirty) {
+		debug_shape_dirty = true;
+		call_deferred("_update_debug_shape");
+	}
+}
diff --git a/scene/3d/collision_shape.h b/scene/3d/collision_shape.h
index 0c8e383a7f..98427b8590 100644
--- a/scene/3d/collision_shape.h
+++ b/scene/3d/collision_shape.h
@@ -45,12 +45,14 @@ class CollisionShape : public Spatial {
 	CollisionObject *parent;
 
 	Node *debug_shape;
+	bool debug_shape_dirty;
 
 	void resource_changed(RES res);
 	bool disabled;
 
 protected:
-	void _create_debug_shape();
+	void _update_debug_shape();
+	void _shape_changed();
 
 	void _update_in_shape_owner(bool p_xform_only = false);
 
diff --git a/scene/3d/cpu_particles.cpp b/scene/3d/cpu_particles.cpp
index 469a1e87db..d4e242dcb7 100644
--- a/scene/3d/cpu_particles.cpp
+++ b/scene/3d/cpu_particles.cpp
@@ -1394,6 +1394,7 @@ CPUParticles::CPUParticles() {
 	redraw = false;
 
 	multimesh = VisualServer::get_singleton()->multimesh_create();
+	VisualServer::get_singleton()->multimesh_set_visible_instances(multimesh, 0);
 	set_base(multimesh);
 
 	set_emitting(true);
diff --git a/scene/3d/light.cpp b/scene/3d/light.cpp
index cf1af918f7..2377068ede 100644
--- a/scene/3d/light.cpp
+++ b/scene/3d/light.cpp
@@ -152,6 +152,7 @@ PoolVector<Face3> Light::get_faces(uint32_t p_usage_flags) const {
 
 void Light::set_bake_mode(BakeMode p_mode) {
 	bake_mode = p_mode;
+	VS::get_singleton()->light_set_use_gi(light, p_mode != BAKE_DISABLED);
 }
 
 Light::BakeMode Light::get_bake_mode() const {
@@ -293,7 +294,8 @@ Light::Light(VisualServer::LightType p_type) {
 		case VS::LIGHT_DIRECTIONAL: light = VisualServer::get_singleton()->directional_light_create(); break;
 		case VS::LIGHT_OMNI: light = VisualServer::get_singleton()->omni_light_create(); break;
 		case VS::LIGHT_SPOT: light = VisualServer::get_singleton()->spot_light_create(); break;
-		default: {};
+		default: {
+		};
 	}
 
 	VS::get_singleton()->instance_set_base(get_instance(), light);
diff --git a/scene/3d/mesh_instance.cpp b/scene/3d/mesh_instance.cpp
index 848889155b..89072519d5 100644
--- a/scene/3d/mesh_instance.cpp
+++ b/scene/3d/mesh_instance.cpp
@@ -96,7 +96,7 @@ void MeshInstance::_get_property_list(List<PropertyInfo> *p_list) const {
 	ls.sort();
 
 	for (List<String>::Element *E = ls.front(); E; E = E->next()) {
-		p_list->push_back(PropertyInfo(Variant::REAL, E->get(), PROPERTY_HINT_RANGE, "0,1,0.01"));
+		p_list->push_back(PropertyInfo(Variant::REAL, E->get(), PROPERTY_HINT_RANGE, "0,1,0.00001"));
 	}
 
 	if (mesh.is_valid()) {
diff --git a/scene/3d/navigation.cpp b/scene/3d/navigation.cpp
index 5a3c8223ff..612d91c6e1 100644
--- a/scene/3d/navigation.cpp
+++ b/scene/3d/navigation.cpp
@@ -340,16 +340,12 @@ Vector<Vector3> Navigation::get_simple_path(const Vector3 &p_start, const Vector
 			};
 
 			Vector3 entry = Geometry::get_closest_point_to_segment(begin_poly->entry, edge);
-			begin_poly->edges[i].C->distance = begin_poly->entry.distance_to(entry);
+			begin_poly->edges[i].C->distance = begin_point.distance_to(entry);
 			begin_poly->edges[i].C->entry = entry;
 #else
 			begin_poly->edges[i].C->distance = begin_poly->center.distance_to(begin_poly->edges[i].C->center);
 #endif
 			open_list.push_back(begin_poly->edges[i].C);
-
-			if (begin_poly->edges[i].C == end_poly) {
-				found_route = true;
-			}
 		}
 	}
 
@@ -370,28 +366,7 @@ Vector<Vector3> Navigation::get_simple_path(const Vector3 &p_start, const Vector
 
 			float cost = p->distance;
 #ifdef USE_ENTRY_POINT
-			int es = p->edges.size();
-
-			float shortest_distance = 1e30;
-
-			for (int i = 0; i < es; i++) {
-				Polygon::Edge &e = p->edges.write[i];
-
-				if (!e.C)
-					continue;
-
-				Vector3 edge[2] = {
-					_get_vertex(p->edges[i].point),
-					_get_vertex(p->edges[(i + 1) % es].point)
-				};
-
-				Vector3 edge_point = Geometry::get_closest_point_to_segment(p->entry, edge);
-				float dist = p->entry.distance_to(edge_point);
-				if (dist < shortest_distance)
-					shortest_distance = dist;
-			}
-
-			cost += shortest_distance;
+			cost += p->entry.distance_to(end_point);
 #else
 			cost += p->center.distance_to(end_point);
 #endif
@@ -404,6 +379,12 @@ Vector<Vector3> Navigation::get_simple_path(const Vector3 &p_start, const Vector
 		Polygon *p = least_cost_poly->get();
 		//open the neighbours for search
 
+		if (p == end_poly) {
+			//oh my reached end! stop algorithm
+			found_route = true;
+			break;
+		}
+
 		for (int i = 0; i < p->edges.size(); i++) {
 
 			Polygon::Edge &e = p->edges.write[i];
@@ -411,7 +392,17 @@ Vector<Vector3> Navigation::get_simple_path(const Vector3 &p_start, const Vector
 			if (!e.C)
 				continue;
 
+#ifdef USE_ENTRY_POINT
+			Vector3 edge[2] = {
+				_get_vertex(p->edges[i].point),
+				_get_vertex(p->edges[(i + 1) % p->edges.size()].point)
+			};
+
+			Vector3 entry = Geometry::get_closest_point_to_segment(p->entry, edge);
+			float distance = p->entry.distance_to(entry) + p->distance;
+#else
 			float distance = p->center.distance_to(e.C->center) + p->distance;
+#endif
 
 			if (e.C->prev_edge != -1) {
 				//oh this was visited already, can we win the cost?
@@ -420,25 +411,22 @@ Vector<Vector3> Navigation::get_simple_path(const Vector3 &p_start, const Vector
 
 					e.C->prev_edge = e.C_edge;
 					e.C->distance = distance;
+#ifdef USE_ENTRY_POINT
+					e.C->entry = entry;
+#endif
 				}
 			} else {
 				//add to open neighbours
 
 				e.C->prev_edge = e.C_edge;
 				e.C->distance = distance;
+#ifdef USE_ENTRY_POINT
+				e.C->entry = entry;
+#endif
 				open_list.push_back(e.C);
-
-				if (e.C == end_poly) {
-					//oh my reached end! stop algorithm
-					found_route = true;
-					break;
-				}
 			}
 		}
 
-		if (found_route)
-			break;
-
 		open_list.erase(least_cost_poly);
 	}
 
@@ -539,8 +527,12 @@ Vector<Vector3> Navigation::get_simple_path(const Vector3 &p_start, const Vector
 			path.push_back(end_point);
 			while (true) {
 				int prev = p->prev_edge;
+#ifdef USE_ENTRY_POINT
+				Vector3 point = p->entry;
+#else
 				int prev_n = (p->prev_edge + 1) % p->edges.size();
 				Vector3 point = (_get_vertex(p->edges[prev].point) + _get_vertex(p->edges[prev_n].point)) * 0.5;
+#endif
 				path.push_back(point);
 				p = p->edges[prev].C;
 				if (p == begin_poly)
diff --git a/scene/3d/navigation_mesh.cpp b/scene/3d/navigation_mesh.cpp
index 93731c4023..003f76664d 100644
--- a/scene/3d/navigation_mesh.cpp
+++ b/scene/3d/navigation_mesh.cpp
@@ -410,19 +410,19 @@ void NavigationMesh::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "sample_partition_type/sample_partition_type", PROPERTY_HINT_ENUM, "Watershed,Monotone,Layers"), "set_sample_partition_type", "get_sample_partition_type");
 
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell/size", PROPERTY_HINT_RANGE, "0.1,1.0,0.01"), "set_cell_size", "get_cell_size");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell/height", PROPERTY_HINT_RANGE, "0.1,1.0,0.01"), "set_cell_height", "get_cell_height");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/height", PROPERTY_HINT_RANGE, "0.1,5.0,0.01"), "set_agent_height", "get_agent_height");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/radius", PROPERTY_HINT_RANGE, "0.1,5.0,0.01"), "set_agent_radius", "get_agent_radius");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/max_climb", PROPERTY_HINT_RANGE, "0.1,5.0,0.01"), "set_agent_max_climb", "get_agent_max_climb");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell/size", PROPERTY_HINT_RANGE, "0.1,1.0,0.01,or_greater"), "set_cell_size", "get_cell_size");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "cell/height", PROPERTY_HINT_RANGE, "0.1,1.0,0.01,or_greater"), "set_cell_height", "get_cell_height");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/height", PROPERTY_HINT_RANGE, "0.1,5.0,0.01,or_greater"), "set_agent_height", "get_agent_height");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/radius", PROPERTY_HINT_RANGE, "0.1,5.0,0.01,or_greater"), "set_agent_radius", "get_agent_radius");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/max_climb", PROPERTY_HINT_RANGE, "0.1,5.0,0.01,or_greater"), "set_agent_max_climb", "get_agent_max_climb");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "agent/max_slope", PROPERTY_HINT_RANGE, "0.0,90.0,0.1"), "set_agent_max_slope", "get_agent_max_slope");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "region/min_size", PROPERTY_HINT_RANGE, "0.0,150.0,0.01"), "set_region_min_size", "get_region_min_size");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "region/merge_size", PROPERTY_HINT_RANGE, "0.0,150.0,0.01"), "set_region_merge_size", "get_region_merge_size");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "edge/max_length", PROPERTY_HINT_RANGE, "0.0,50.0,0.01"), "set_edge_max_length", "get_edge_max_length");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "edge/max_error", PROPERTY_HINT_RANGE, "0.1,3.0,0.01"), "set_edge_max_error", "get_edge_max_error");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "polygon/verts_per_poly", PROPERTY_HINT_RANGE, "3.0,12.0,1.0"), "set_verts_per_poly", "get_verts_per_poly");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "detail/sample_distance", PROPERTY_HINT_RANGE, "0.0,16.0,0.01"), "set_detail_sample_distance", "get_detail_sample_distance");
-	ADD_PROPERTY(PropertyInfo(Variant::REAL, "detail/sample_max_error", PROPERTY_HINT_RANGE, "0.0,16.0,0.01"), "set_detail_sample_max_error", "get_detail_sample_max_error");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "region/min_size", PROPERTY_HINT_RANGE, "0.0,150.0,0.01,or_greater"), "set_region_min_size", "get_region_min_size");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "region/merge_size", PROPERTY_HINT_RANGE, "0.0,150.0,0.01,or_greater"), "set_region_merge_size", "get_region_merge_size");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "edge/max_length", PROPERTY_HINT_RANGE, "0.0,50.0,0.01,or_greater"), "set_edge_max_length", "get_edge_max_length");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "edge/max_error", PROPERTY_HINT_RANGE, "0.1,3.0,0.01,or_greater"), "set_edge_max_error", "get_edge_max_error");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "polygon/verts_per_poly", PROPERTY_HINT_RANGE, "3.0,12.0,1.0,or_greater"), "set_verts_per_poly", "get_verts_per_poly");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "detail/sample_distance", PROPERTY_HINT_RANGE, "0.0,16.0,0.01,or_greater"), "set_detail_sample_distance", "get_detail_sample_distance");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "detail/sample_max_error", PROPERTY_HINT_RANGE, "0.0,16.0,0.01,or_greater"), "set_detail_sample_max_error", "get_detail_sample_max_error");
 
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/low_hanging_obstacles"), "set_filter_low_hanging_obstacles", "get_filter_low_hanging_obstacles");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/ledge_spans"), "set_filter_ledge_spans", "get_filter_ledge_spans");
diff --git a/scene/3d/path.cpp b/scene/3d/path.cpp
index 190967d76c..84078911cb 100644
--- a/scene/3d/path.cpp
+++ b/scene/3d/path.cpp
@@ -173,7 +173,7 @@ void PathFollow::_update_transform() {
 		float dot = t_prev.dot(t_cur);
 		float angle = Math::acos(CLAMP(dot, -1, 1));
 
-		if (likely(Math::abs(angle) > CMP_EPSILON)) {
+		if (likely(!Math::is_zero_approx(angle))) {
 			if (rotation_mode == ROTATION_Y) {
 				// assuming we're referring to global Y-axis. is this correct?
 				axis.x = 0;
@@ -184,7 +184,7 @@ void PathFollow::_update_transform() {
 				// all components are allowed
 			}
 
-			if (likely(axis.length() > CMP_EPSILON)) {
+			if (likely(!Math::is_zero_approx(axis.length()))) {
 				t.rotate_basis(axis.normalized(), angle);
 			}
 		}
@@ -193,7 +193,7 @@ void PathFollow::_update_transform() {
 		float tilt_angle = c->interpolate_baked_tilt(o);
 		Vector3 tilt_axis = t_cur; // not sure what tilt is supposed to do, is this correct??
 
-		if (likely(Math::abs(tilt_angle) > CMP_EPSILON)) {
+		if (likely(!Math::is_zero_approx(Math::abs(tilt_angle)))) {
 			if (rotation_mode == ROTATION_Y) {
 				tilt_axis.x = 0;
 				tilt_axis.z = 0;
@@ -203,7 +203,7 @@ void PathFollow::_update_transform() {
 				// all components are allowed
 			}
 
-			if (likely(tilt_axis.length() > CMP_EPSILON)) {
+			if (likely(!Math::is_zero_approx(tilt_axis.length()))) {
 				t.rotate_basis(tilt_axis.normalized(), tilt_angle);
 			}
 		}
diff --git a/scene/3d/physics_body.cpp b/scene/3d/physics_body.cpp
index 05214ed669..57af951110 100644
--- a/scene/3d/physics_body.cpp
+++ b/scene/3d/physics_body.cpp
@@ -1181,19 +1181,16 @@ Vector3 KinematicBody::move_and_slide(const Vector3 &p_linear_velocity, const Ve
 	while (p_max_slides) {
 
 		Collision collision;
-
 		bool found_collision = false;
 
-		int test_type = 0;
-
-		do {
+		for (int i = 0; i < 2; ++i) {
 			bool collided;
-			if (test_type == 0) { //collide
+			if (i == 0) { //collide
 				collided = move_and_collide(motion, p_infinite_inertia, collision);
 				if (!collided) {
 					motion = Vector3(); //clear because no collision happened and motion completed
 				}
-			} else {
+			} else { //separate raycasts (if any)
 				collided = separate_raycast_shapes(p_infinite_inertia, collision);
 				if (collided) {
 					collision.remainder = motion; //keep
@@ -1203,9 +1200,6 @@ Vector3 KinematicBody::move_and_slide(const Vector3 &p_linear_velocity, const Ve
 
 			if (collided) {
 				found_collision = true;
-			}
-
-			if (collided) {
 
 				colliders.push_back(collision);
 				motion = collision.remainder;
@@ -1222,7 +1216,7 @@ Vector3 KinematicBody::move_and_slide(const Vector3 &p_linear_velocity, const Ve
 						floor_velocity = collision.collider_vel;
 
 						if (p_stop_on_slope) {
-							if ((lv_n + p_floor_direction).length() < 0.01) {
+							if ((lv_n + p_floor_direction).length() < 0.01 && collision.travel.length() < 1) {
 								Transform gt = get_global_transform();
 								gt.origin -= collision.travel;
 								set_global_transform(gt);
@@ -1243,21 +1237,18 @@ Vector3 KinematicBody::move_and_slide(const Vector3 &p_linear_velocity, const Ve
 					motion = motion.slide(p_floor_direction);
 					lv = lv.slide(p_floor_direction);
 				} else {
-
 					Vector3 n = collision.normal;
 					motion = motion.slide(n);
 					lv = lv.slide(n);
 				}
 
-				for (int i = 0; i < 3; i++) {
-					if (locked_axis & (1 << i)) {
-						lv[i] = 0;
+				for (int j = 0; j < 3; j++) {
+					if (locked_axis & (1 << j)) {
+						lv[j] = 0;
 					}
 				}
 			}
-
-			++test_type;
-		} while (!p_stop_on_slope && test_type < 2);
+		}
 
 		if (!found_collision || motion == Vector3())
 			break;
diff --git a/scene/3d/physics_body.h b/scene/3d/physics_body.h
index 589af98062..aa6030d44e 100644
--- a/scene/3d/physics_body.h
+++ b/scene/3d/physics_body.h
@@ -317,7 +317,7 @@ protected:
 	static void _bind_methods();
 
 public:
-	bool move_and_collide(const Vector3 &p_motion, bool p_infinite_inertia, Collision &r_collisionz, bool p_exclude_raycast_shapes = true, bool p_test_only = false);
+	bool move_and_collide(const Vector3 &p_motion, bool p_infinite_inertia, Collision &r_collision, bool p_exclude_raycast_shapes = true, bool p_test_only = false);
 	bool test_move(const Transform &p_from, const Vector3 &p_motion, bool p_infinite_inertia);
 
 	bool separate_raycast_shapes(bool p_infinite_inertia, Collision &r_collision);
diff --git a/scene/3d/skeleton.cpp b/scene/3d/skeleton.cpp
index b7279e4d4f..15c089ec10 100644
--- a/scene/3d/skeleton.cpp
+++ b/scene/3d/skeleton.cpp
@@ -540,10 +540,11 @@ void Skeleton::clear_bones() {
 void Skeleton::set_bone_pose(int p_bone, const Transform &p_pose) {
 
 	ERR_FAIL_INDEX(p_bone, bones.size());
-	ERR_FAIL_COND(!is_inside_tree());
 
 	bones.write[p_bone].pose = p_pose;
-	_make_dirty();
+	if (is_inside_tree()) {
+		_make_dirty();
+	}
 }
 Transform Skeleton::get_bone_pose(int p_bone) const {
 
@@ -772,6 +773,8 @@ void Skeleton::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_bone_rest", "bone_idx"), &Skeleton::get_bone_rest);
 	ClassDB::bind_method(D_METHOD("set_bone_rest", "bone_idx", "rest"), &Skeleton::set_bone_rest);
 
+	ClassDB::bind_method(D_METHOD("localize_rests"), &Skeleton::localize_rests);
+
 	ClassDB::bind_method(D_METHOD("set_bone_disable_rest", "bone_idx", "disable"), &Skeleton::set_bone_disable_rest);
 	ClassDB::bind_method(D_METHOD("is_bone_rest_disabled", "bone_idx"), &Skeleton::is_bone_rest_disabled);
 
diff --git a/scene/3d/soft_body.cpp b/scene/3d/soft_body.cpp
index ac20609c21..909d4fda34 100644
--- a/scene/3d/soft_body.cpp
+++ b/scene/3d/soft_body.cpp
@@ -104,6 +104,14 @@ SoftBody::PinnedPoint::PinnedPoint(const PinnedPoint &obj_tocopy) {
 	offset = obj_tocopy.offset;
 }
 
+SoftBody::PinnedPoint SoftBody::PinnedPoint::operator=(const PinnedPoint &obj) {
+	point_index = obj.point_index;
+	spatial_attachment_path = obj.spatial_attachment_path;
+	spatial_attachment = obj.spatial_attachment;
+	offset = obj.offset;
+	return *this;
+}
+
 void SoftBody::_update_pickable() {
 	if (!is_inside_tree())
 		return;
@@ -397,7 +405,7 @@ String SoftBody::get_configuration_warning() const {
 		if (!warning.empty())
 			warning += "\n\n";
 
-		warning += TTR("This body will be ignored until you set a mesh");
+		warning += TTR("This body will be ignored until you set a mesh.");
 	}
 
 	Transform t = get_transform();
diff --git a/scene/3d/soft_body.h b/scene/3d/soft_body.h
index 2516d39552..ee455f8dab 100644
--- a/scene/3d/soft_body.h
+++ b/scene/3d/soft_body.h
@@ -75,6 +75,7 @@ public:
 
 		PinnedPoint();
 		PinnedPoint(const PinnedPoint &obj_tocopy);
+		PinnedPoint operator=(const PinnedPoint &obj);
 	};
 
 private:
diff --git a/scene/3d/spatial.cpp b/scene/3d/spatial.cpp
index 83f99a2e3c..05fd984f93 100644
--- a/scene/3d/spatial.cpp
+++ b/scene/3d/spatial.cpp
@@ -224,7 +224,8 @@ void Spatial::_notification(int p_what) {
 #endif
 		} break;
 
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -675,8 +676,7 @@ void Spatial::set_identity() {
 
 void Spatial::look_at(const Vector3 &p_target, const Vector3 &p_up) {
 
-	Transform lookat;
-	lookat.origin = get_global_transform().origin;
+	Transform lookat(get_global_transform());
 	if (lookat.origin == p_target) {
 		ERR_EXPLAIN("Node origin and target are in the same position, look_at() failed");
 		ERR_FAIL();
@@ -686,7 +686,10 @@ void Spatial::look_at(const Vector3 &p_target, const Vector3 &p_up) {
 		ERR_EXPLAIN("Up vector and direction between node origin and target are aligned, look_at() failed");
 		ERR_FAIL();
 	}
+	Vector3 original_scale(lookat.basis.get_scale());
 	lookat = lookat.looking_at(p_target, p_up);
+	// as basis was normalized, we just need to apply original scale back
+	lookat.basis.scale(original_scale);
 	set_global_transform(lookat);
 }
 
diff --git a/scene/3d/vehicle_body.cpp b/scene/3d/vehicle_body.cpp
index c7f7b14a8f..fde135c972 100644
--- a/scene/3d/vehicle_body.cpp
+++ b/scene/3d/vehicle_body.cpp
@@ -716,7 +716,7 @@ void VehicleBody::_update_friction(PhysicsDirectBodyState *s) {
 			real_t rollingFriction = 0.f;
 
 			if (wheelInfo.m_raycastInfo.m_isInContact) {
-				if (engine_force != 0.f) {
+				if (engine_force != 0.f && wheelInfo.engine_traction != false) {
 					rollingFriction = -engine_force * s->get_step();
 				} else {
 					real_t defaultRollingFrictionImpulse = 0.f;
diff --git a/scene/3d/visual_instance.cpp b/scene/3d/visual_instance.cpp
index 1bbf1b7bc7..1aded826c0 100644
--- a/scene/3d/visual_instance.cpp
+++ b/scene/3d/visual_instance.cpp
@@ -123,6 +123,8 @@ void VisualInstance::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("_get_visual_instance_rid"), &VisualInstance::_get_visual_instance_rid);
 	ClassDB::bind_method(D_METHOD("set_base", "base"), &VisualInstance::set_base);
+	ClassDB::bind_method(D_METHOD("get_base"), &VisualInstance::get_base);
+	ClassDB::bind_method(D_METHOD("get_instance"), &VisualInstance::get_instance);
 	ClassDB::bind_method(D_METHOD("set_layer_mask", "mask"), &VisualInstance::set_layer_mask);
 	ClassDB::bind_method(D_METHOD("get_layer_mask"), &VisualInstance::get_layer_mask);
 	ClassDB::bind_method(D_METHOD("set_layer_mask_bit", "layer", "enabled"), &VisualInstance::set_layer_mask_bit);
@@ -136,6 +138,12 @@ void VisualInstance::_bind_methods() {
 void VisualInstance::set_base(const RID &p_base) {
 
 	VisualServer::get_singleton()->instance_set_base(instance, p_base);
+	base = p_base;
+}
+
+RID VisualInstance::get_base() const {
+
+	return base;
 }
 
 VisualInstance::VisualInstance() {
diff --git a/scene/3d/visual_instance.h b/scene/3d/visual_instance.h
index 3b6fccf65f..f5b7479bb1 100644
--- a/scene/3d/visual_instance.h
+++ b/scene/3d/visual_instance.h
@@ -43,6 +43,7 @@ class VisualInstance : public Spatial {
 	GDCLASS(VisualInstance, Spatial);
 	OBJ_CATEGORY("3D Visual Nodes");
 
+	RID base;
 	RID instance;
 	uint32_t layers;
 
@@ -69,6 +70,7 @@ public:
 	virtual AABB get_transformed_aabb() const; // helper
 
 	void set_base(const RID &p_base);
+	RID get_base() const;
 
 	void set_layer_mask(uint32_t p_mask);
 	uint32_t get_layer_mask() const;
diff --git a/scene/3d/voxel_light_baker.cpp b/scene/3d/voxel_light_baker.cpp
index 750ed97ae6..75b419ca58 100644
--- a/scene/3d/voxel_light_baker.cpp
+++ b/scene/3d/voxel_light_baker.cpp
@@ -835,7 +835,7 @@ void VoxelLightBaker::plot_light_directional(const Vector3 &p_direction, const C
 
 	for (int i = 0; i < 3; i++) {
 
-		if (ABS(light_axis[i]) < CMP_EPSILON)
+		if (Math::is_zero_approx(light_axis[i]))
 			continue;
 		clip[clip_planes].normal[i] = 1.0;
 
@@ -978,7 +978,7 @@ void VoxelLightBaker::plot_light_omni(const Vector3 &p_pos, const Color &p_color
 
 		for (int c = 0; c < 3; c++) {
 
-			if (ABS(light_axis[c]) < CMP_EPSILON)
+			if (Math::is_zero_approx(light_axis[c]))
 				continue;
 			clip[clip_planes].normal[c] = 1.0;
 
@@ -1113,7 +1113,7 @@ void VoxelLightBaker::plot_light_spot(const Vector3 &p_pos, const Vector3 &p_axi
 
 		for (int c = 0; c < 3; c++) {
 
-			if (ABS(light_axis[c]) < CMP_EPSILON)
+			if (Math::is_zero_approx(light_axis[c]))
 				continue;
 			clip[clip_planes].normal[c] = 1.0;
 
diff --git a/scene/animation/animation_blend_tree.cpp b/scene/animation/animation_blend_tree.cpp
index 0daa574f72..e9b38ae990 100644
--- a/scene/animation/animation_blend_tree.cpp
+++ b/scene/animation/animation_blend_tree.cpp
@@ -363,6 +363,7 @@ AnimationNodeOneShot::AnimationNodeOneShot() {
 	fade_out = 0.1;
 	autorestart = false;
 	autorestart_delay = 1;
+	autorestart_random_delay = 0;
 
 	mix = MIX_MODE_BLEND;
 	sync = false;
@@ -857,6 +858,7 @@ AnimationNodeTransition::AnimationNodeTransition() {
 	time = "time";
 	current = "current";
 	prev_current = "prev_current";
+	xfade = 0.0;
 
 	enabled_inputs = 0;
 	for (int i = 0; i < MAX_INPUTS; i++) {
diff --git a/scene/animation/animation_cache.cpp b/scene/animation/animation_cache.cpp
index feefe3ddd4..84b3f103c5 100644
--- a/scene/animation/animation_cache.cpp
+++ b/scene/animation/animation_cache.cpp
@@ -309,7 +309,8 @@ void AnimationCache::set_all(float p_time, float p_delta) {
 				}
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 }
diff --git a/scene/animation/animation_node_state_machine.cpp b/scene/animation/animation_node_state_machine.cpp
index 68ad71d01c..1e3470cd90 100644
--- a/scene/animation/animation_node_state_machine.cpp
+++ b/scene/animation/animation_node_state_machine.cpp
@@ -960,7 +960,7 @@ void AnimationNodeStateMachine::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_end_node", "name"), &AnimationNodeStateMachine::set_end_node);
 	ClassDB::bind_method(D_METHOD("get_end_node"), &AnimationNodeStateMachine::get_end_node);
 
-	ClassDB::bind_method(D_METHOD("set_graph_offset", "name"), &AnimationNodeStateMachine::set_graph_offset);
+	ClassDB::bind_method(D_METHOD("set_graph_offset", "offset"), &AnimationNodeStateMachine::set_graph_offset);
 	ClassDB::bind_method(D_METHOD("get_graph_offset"), &AnimationNodeStateMachine::get_graph_offset);
 
 	ClassDB::bind_method(D_METHOD("_tree_changed"), &AnimationNodeStateMachine::_tree_changed);
diff --git a/scene/animation/animation_player.cpp b/scene/animation/animation_player.cpp
index 016db15b73..ead3516116 100644
--- a/scene/animation/animation_player.cpp
+++ b/scene/animation/animation_player.cpp
@@ -34,7 +34,10 @@
 #include "core/message_queue.h"
 #include "scene/scene_string_names.h"
 #include "servers/audio/audio_stream.h"
+
 #ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+
 void AnimatedValuesBackup::update_skeletons() {
 
 	for (int i = 0; i < entries.size(); i++) {
@@ -1510,13 +1513,19 @@ NodePath AnimationPlayer::get_root() const {
 
 void AnimationPlayer::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	String pf = p_function;
 	if (p_function == "play" || p_function == "play_backwards" || p_function == "remove_animation" || p_function == "has_animation" || p_function == "queue") {
 		List<StringName> al;
 		get_animation_list(&al);
 		for (List<StringName>::Element *E = al.front(); E; E = E->next()) {
 
-			r_options->push_back("\"" + String(E->get()) + "\"");
+			r_options->push_back(quote_style + String(E->get()) + quote_style);
 		}
 	}
 	Node::get_argument_options(p_function, p_idx, r_options);
diff --git a/scene/animation/animation_tree.cpp b/scene/animation/animation_tree.cpp
index 0b6fa26bfc..d1d3582c9d 100644
--- a/scene/animation/animation_tree.cpp
+++ b/scene/animation/animation_tree.cpp
@@ -883,16 +883,16 @@ void AnimationTree::_process_graph(float p_delta) {
 
 						TrackCacheTransform *t = static_cast<TrackCacheTransform *>(track);
 
-						if (t->process_pass != process_pass) {
+						if (track->root_motion) {
 
-							t->process_pass = process_pass;
-							t->loc = Vector3();
-							t->rot = Quat();
-							t->rot_blend_accum = 0;
-							t->scale = Vector3();
-						}
+							if (t->process_pass != process_pass) {
 
-						if (track->root_motion) {
+								t->process_pass = process_pass;
+								t->loc = Vector3();
+								t->rot = Quat();
+								t->rot_blend_accum = 0;
+								t->scale = Vector3(1, 1, 1);
+							}
 
 							float prev_time = time - delta;
 							if (prev_time < 0) {
@@ -946,7 +946,14 @@ void AnimationTree::_process_graph(float p_delta) {
 							Error err = a->transform_track_interpolate(i, time, &loc, &rot, &scale);
 							//ERR_CONTINUE(err!=OK); //used for testing, should be removed
 
-							scale -= Vector3(1.0, 1.0, 1.0); //helps make it work properly with Add nodes
+							if (t->process_pass != process_pass) {
+
+								t->process_pass = process_pass;
+								t->loc = loc;
+								t->rot = rot;
+								t->rot_blend_accum = 0;
+								t->scale = scale;
+							}
 
 							if (err != OK)
 								continue;
@@ -978,8 +985,7 @@ void AnimationTree::_process_graph(float p_delta) {
 								continue;
 
 							if (t->process_pass != process_pass) {
-								Variant::CallError ce;
-								t->value = Variant::construct(value.get_type(), NULL, 0, ce); //reset
+								t->value = value;
 								t->process_pass = process_pass;
 							}
 
@@ -1036,7 +1042,7 @@ void AnimationTree::_process_graph(float p_delta) {
 						float bezier = a->bezier_track_interpolate(i, time);
 
 						if (t->process_pass != process_pass) {
-							t->value = 0;
+							t->value = bezier;
 							t->process_pass = process_pass;
 						}
 
@@ -1233,8 +1239,6 @@ void AnimationTree::_process_graph(float p_delta) {
 					Transform xform;
 					xform.origin = t->loc;
 
-					t->scale += Vector3(1.0, 1.0, 1.0); //helps make it work properly with Add nodes and root motion
-
 					xform.basis.set_quat_scale(t->rot, t->scale);
 
 					if (t->root_motion) {
@@ -1268,7 +1272,8 @@ void AnimationTree::_process_graph(float p_delta) {
 					t->object->set_indexed(t->subpath, t->value);
 
 				} break;
-				default: {} //the rest don't matter
+				default: {
+				} //the rest don't matter
 			}
 		}
 	}
@@ -1293,9 +1298,17 @@ void AnimationTree::_notification(int p_what) {
 		_clear_caches();
 		if (last_animation_player) {
 
-			Object *old_player = ObjectDB::get_instance(last_animation_player);
-			if (old_player) {
-				old_player->disconnect("caches_cleared", this, "_clear_caches");
+			Object *player = ObjectDB::get_instance(last_animation_player);
+			if (player) {
+				player->disconnect("caches_cleared", this, "_clear_caches");
+			}
+		}
+	} else if (p_what == NOTIFICATION_ENTER_TREE) {
+		if (last_animation_player) {
+
+			Object *player = ObjectDB::get_instance(last_animation_player);
+			if (player) {
+				player->connect("caches_cleared", this, "_clear_caches");
 			}
 		}
 	}
diff --git a/scene/animation/animation_tree_player.cpp b/scene/animation/animation_tree_player.cpp
index 3420b48ae3..3cc90c2ad6 100644
--- a/scene/animation/animation_tree_player.cpp
+++ b/scene/animation/animation_tree_player.cpp
@@ -193,7 +193,8 @@ bool AnimationTreePlayer::_set(const StringName &p_name, const Variant &p_value)
 				}
 
 			} break;
-			default: {};
+			default: {
+			};
 		}
 	}
 
@@ -352,7 +353,8 @@ bool AnimationTreePlayer::_get(const StringName &p_name, Variant &r_ret) const {
 				node["transitions"] = transitions;
 
 			} break;
-			default: {};
+			default: {
+			};
 		}
 
 		nodes.push_back(node);
@@ -772,7 +774,8 @@ float AnimationTreePlayer::_process_node(const StringName &p_node, AnimationNode
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return 0;
@@ -882,7 +885,8 @@ void AnimationTreePlayer::_process_animation(float p_delta) {
 							tr.track->object->call(method, args[0], args[1], args[2], args[3], args[4]);
 						}
 					} break;
-					default: {}
+					default: {
+					}
 				}
 			}
 		}
@@ -969,7 +973,8 @@ void AnimationTreePlayer::add_node(NodeType p_type, const StringName &p_node) {
 			n = memnew(TransitionNode);
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	//n->name+=" "+itos(p_node);
diff --git a/scene/animation/skeleton_ik.cpp b/scene/animation/skeleton_ik.cpp
index 88fb2d5bfc..4da3e6ee28 100644
--- a/scene/animation/skeleton_ik.cpp
+++ b/scene/animation/skeleton_ik.cpp
@@ -335,7 +335,7 @@ void SkeletonIK::_validate_property(PropertyInfo &property) const {
 
 		if (skeleton) {
 
-			String names;
+			String names("--,");
 			for (int i = 0; i < skeleton->get_bone_count(); i++) {
 				if (i > 0)
 					names += ",";
diff --git a/scene/animation/tween.cpp b/scene/animation/tween.cpp
index 6a5d7839f4..23998183b8 100644
--- a/scene/animation/tween.cpp
+++ b/scene/animation/tween.cpp
@@ -223,6 +223,7 @@ void Tween::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("tween_started", PropertyInfo(Variant::OBJECT, "object"), PropertyInfo(Variant::NODE_PATH, "key")));
 	ADD_SIGNAL(MethodInfo("tween_step", PropertyInfo(Variant::OBJECT, "object"), PropertyInfo(Variant::NODE_PATH, "key"), PropertyInfo(Variant::REAL, "elapsed"), PropertyInfo(Variant::OBJECT, "value")));
 	ADD_SIGNAL(MethodInfo("tween_completed", PropertyInfo(Variant::OBJECT, "object"), PropertyInfo(Variant::NODE_PATH, "key")));
+	ADD_SIGNAL(MethodInfo("tween_all_completed"));
 
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "repeat"), "set_repeat", "is_repeat");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "playback_process_mode", PROPERTY_HINT_ENUM, "Physics,Idle"), "set_tween_process_mode", "get_tween_process_mode");
@@ -628,8 +629,10 @@ void Tween::_tween_process(float p_delta) {
 	}
 	pending_update--;
 
-	if (all_finished)
+	if (all_finished) {
 		set_active(false);
+		emit_signal("tween_all_completed");
+	}
 }
 
 void Tween::set_tween_process_mode(TweenProcessMode p_mode) {
diff --git a/scene/audio/audio_stream_player.cpp b/scene/audio/audio_stream_player.cpp
index 2688041d18..144e58d8b9 100644
--- a/scene/audio/audio_stream_player.cpp
+++ b/scene/audio/audio_stream_player.cpp
@@ -32,33 +32,10 @@
 
 #include "core/engine.h"
 
-void AudioStreamPlayer::_mix_internal(bool p_fadeout) {
-
-	int bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus);
 
-	//get data
-	AudioFrame *buffer = mix_buffer.ptrw();
-	int buffer_size = mix_buffer.size();
-
-	if (p_fadeout) {
-		// Short fadeout ramp
-		buffer_size = MIN(buffer_size, 128);
-	}
+void AudioStreamPlayer::_mix_to_bus(const AudioFrame *p_frames,int p_amount) {
 
-	stream_playback->mix(buffer, pitch_scale, buffer_size);
-
-	//multiply volume interpolating to avoid clicks if this changes
-	float target_volume = p_fadeout ? -80.0 : volume_db;
-	float vol = Math::db2linear(mix_volume_db);
-	float vol_inc = (Math::db2linear(target_volume) - vol) / float(buffer_size);
-
-	for (int i = 0; i < buffer_size; i++) {
-		buffer[i] *= vol;
-		vol += vol_inc;
-	}
-
-	//set volume for next mix
-	mix_volume_db = target_volume;
+	int bus_index = AudioServer::get_singleton()->thread_find_bus_index(bus);
 
 	AudioFrame *targets[4] = { NULL, NULL, NULL, NULL };
 
@@ -83,42 +60,84 @@ void AudioStreamPlayer::_mix_internal(bool p_fadeout) {
 	for (int c = 0; c < 4; c++) {
 		if (!targets[c])
 			break;
-		for (int i = 0; i < buffer_size; i++) {
-			targets[c][i] += buffer[i];
+		for (int i = 0; i < p_amount; i++) {
+			targets[c][i] += p_frames[i];
 		}
 	}
 }
 
+
+void AudioStreamPlayer::_mix_internal(bool p_fadeout) {
+
+
+	//get data
+	AudioFrame *buffer = mix_buffer.ptrw();
+	int buffer_size = mix_buffer.size();
+
+	if (p_fadeout) {
+		// Short fadeout ramp
+		buffer_size = MIN(buffer_size, 128);
+	}
+
+	stream_playback->mix(buffer, pitch_scale, buffer_size);
+
+	//multiply volume interpolating to avoid clicks if this changes
+	float target_volume = p_fadeout ? -80.0 : volume_db;
+	float vol = Math::db2linear(mix_volume_db);
+	float vol_inc = (Math::db2linear(target_volume) - vol) / float(buffer_size);
+
+	for (int i = 0; i < buffer_size; i++) {
+		buffer[i] *= vol;
+		vol += vol_inc;
+	}
+
+	//set volume for next mix
+	mix_volume_db = target_volume;
+
+	_mix_to_bus(buffer,buffer_size);
+
+}
+
 void AudioStreamPlayer::_mix_audio() {
 
+	if (use_fadeout) {
+		_mix_to_bus(fadeout_buffer.ptr(),fadeout_buffer.size());
+		use_fadeout=false;
+	}
+
 	if (!stream_playback.is_valid() || !active ||
-			(stream_paused && !stream_fade)) {
+			(stream_paused && !stream_paused_fade)) {
 		return;
 	}
 
-	if (stream_fade) {
-		_mix_internal(true);
-		stream_fade = false;
-
-		if (stream_stop) {
-			stream_playback->stop();
-			active = false;
-			set_process_internal(false);
+	if (stream_paused) {
+		if (stream_paused_fade) {
+			_mix_internal(true);
+			stream_paused_fade = false;
 		}
 		return;
 	}
 
-	if (setseek >= 0.0) {
+	if (setstop) {
+		_mix_internal(true);
+		stream_playback->stop();
+		setstop=false;
+	}
+
+	if (setseek >= 0.0 && !stop_has_priority) {
 		if (stream_playback->is_playing()) {
 
 			//fade out to avoid pops
 			_mix_internal(true);
 		}
+
 		stream_playback->start(setseek);
 		setseek = -1.0; //reset seek
 		mix_volume_db = volume_db; //reset ramp
 	}
 
+	stop_has_priority = false;
+
 	_mix_internal(false);
 }
 
@@ -135,7 +154,7 @@ void AudioStreamPlayer::_notification(int p_what) {
 	if (p_what == NOTIFICATION_INTERNAL_PROCESS) {
 
 		if (!active || (setseek < 0 && !stream_playback->is_playing())) {
-			active = false;
+			active = false;			
 			set_process_internal(false);
 			emit_signal("finished");
 		}
@@ -162,6 +181,28 @@ void AudioStreamPlayer::set_stream(Ref<AudioStream> p_stream) {
 
 	AudioServer::get_singleton()->lock();
 
+	if (active && stream_playback.is_valid() && !stream_paused) {
+		//changing streams out of the blue is not a great idea, but at least
+		//lets try to somehow avoid a click
+
+		AudioFrame *buffer = fadeout_buffer.ptrw();
+		int buffer_size = fadeout_buffer.size();
+
+		stream_playback->mix(buffer, pitch_scale, buffer_size);
+
+		//multiply volume interpolating to avoid clicks if this changes
+		float target_volume = -80.0;
+		float vol = Math::db2linear(mix_volume_db);
+		float vol_inc = (Math::db2linear(target_volume) - vol) / float(buffer_size);
+
+		for (int i = 0; i < buffer_size; i++) {
+			buffer[i] *= vol;
+			vol += vol_inc;
+		}
+
+		use_fadeout=true;
+	}
+
 	mix_buffer.resize(AudioServer::get_singleton()->thread_get_mix_buffer_size());
 
 	if (stream_playback.is_valid()) {
@@ -169,6 +210,7 @@ void AudioStreamPlayer::set_stream(Ref<AudioStream> p_stream) {
 		stream.unref();
 		active = false;
 		setseek = -1;
+		setstop = false;
 	}
 
 	if (p_stream.is_valid()) {
@@ -209,8 +251,8 @@ void AudioStreamPlayer::play(float p_from_pos) {
 
 	if (stream_playback.is_valid()) {
 		//mix_volume_db = volume_db; do not reset volume ramp here, can cause clicks
-		stream_stop = false;
 		setseek = p_from_pos;
+		stop_has_priority=false;
 		active = true;
 		set_process_internal(true);
 	}
@@ -225,16 +267,16 @@ void AudioStreamPlayer::seek(float p_seconds) {
 
 void AudioStreamPlayer::stop() {
 
-	if (stream_playback.is_valid()) {
-		stream_stop = true;
-		stream_fade = true;
+	if (stream_playback.is_valid() && active) {
+		setstop=true;
+		stop_has_priority=true;
 	}
 }
 
 bool AudioStreamPlayer::is_playing() const {
 
 	if (stream_playback.is_valid()) {
-		return active; //&& stream_playback->is_playing();
+		return active && !setstop; //&& stream_playback->is_playing();
 	}
 
 	return false;
@@ -301,7 +343,7 @@ void AudioStreamPlayer::set_stream_paused(bool p_pause) {
 
 	if (p_pause != stream_paused) {
 		stream_paused = p_pause;
-		stream_fade = p_pause ? true : false;
+		stream_paused_fade = p_pause ? true : false;
 	}
 }
 
@@ -315,7 +357,7 @@ void AudioStreamPlayer::_validate_property(PropertyInfo &property) const {
 	if (property.name == "bus") {
 
 		String options;
-		for (int i = 0; i < AudioServer::get_singleton()->get_bus_count(); i++) {
+		for (int i = 0; i <AudioServer::get_singleton()->get_bus_count(); i++) {
 			if (i > 0)
 				options += ",";
 			String name = AudioServer::get_singleton()->get_bus_name(i);
@@ -331,6 +373,10 @@ void AudioStreamPlayer::_bus_layout_changed() {
 	_change_notify();
 }
 
+Ref<AudioStreamPlayback> AudioStreamPlayer::get_stream_playback() {
+	return stream_playback;
+}
+
 void AudioStreamPlayer::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_stream", "stream"), &AudioStreamPlayer::set_stream);
@@ -366,6 +412,8 @@ void AudioStreamPlayer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_stream_paused", "pause"), &AudioStreamPlayer::set_stream_paused);
 	ClassDB::bind_method(D_METHOD("get_stream_paused"), &AudioStreamPlayer::get_stream_paused);
 
+	ClassDB::bind_method(D_METHOD("get_stream_playback"), &AudioStreamPlayer::get_stream_playback);
+
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "stream", PROPERTY_HINT_RESOURCE_TYPE, "AudioStream"), "set_stream", "get_stream");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "volume_db", PROPERTY_HINT_RANGE, "-80,24"), "set_volume_db", "get_volume_db");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "pitch_scale", PROPERTY_HINT_RANGE, "0.01,32,0.01"), "set_pitch_scale", "get_pitch_scale");
@@ -391,9 +439,11 @@ AudioStreamPlayer::AudioStreamPlayer() {
 	setseek = -1;
 	active = false;
 	stream_paused = false;
-	stream_fade = false;
-	stream_stop = false;
+	stream_paused_fade = false;
 	mix_target = MIX_TARGET_STEREO;
+	fadeout_buffer.resize(512);
+	setstop=false;
+	use_fadeout=false;
 
 	AudioServer::get_singleton()->connect("bus_layout_changed", this, "_bus_layout_changed");
 }
diff --git a/scene/audio/audio_stream_player.h b/scene/audio/audio_stream_player.h
index fba8ce7dd3..0b782b67e7 100644
--- a/scene/audio/audio_stream_player.h
+++ b/scene/audio/audio_stream_player.h
@@ -49,17 +49,20 @@ private:
 	Ref<AudioStreamPlayback> stream_playback;
 	Ref<AudioStream> stream;
 	Vector<AudioFrame> mix_buffer;
+	Vector<AudioFrame> fadeout_buffer;
+	bool use_fadeout;
 
 	volatile float setseek;
 	volatile bool active;
+	volatile bool setstop;
+	volatile bool stop_has_priority;
 
 	float mix_volume_db;
 	float pitch_scale;
 	float volume_db;
 	bool autoplay;
 	bool stream_paused;
-	bool stream_fade;
-	bool stream_stop;
+	bool stream_paused_fade;
 	StringName bus;
 
 	MixTarget mix_target;
@@ -72,6 +75,7 @@ private:
 	bool _is_active() const;
 
 	void _bus_layout_changed();
+	void _mix_to_bus(const AudioFrame *p_frames, int p_amount);
 
 protected:
 	void _validate_property(PropertyInfo &property) const;
@@ -106,6 +110,9 @@ public:
 	void set_stream_paused(bool p_pause);
 	bool get_stream_paused() const;
 
+	Ref<AudioStreamPlayback> get_stream_playback();
+
+
 	AudioStreamPlayer();
 	~AudioStreamPlayer();
 };
diff --git a/scene/gui/base_button.cpp b/scene/gui/base_button.cpp
index 806c8afa5b..e95781c181 100644
--- a/scene/gui/base_button.cpp
+++ b/scene/gui/base_button.cpp
@@ -59,7 +59,7 @@ void BaseButton::_gui_input(Ref<InputEvent> p_event) {
 	Ref<InputEventMouseButton> b = p_event;
 
 	if (b.is_valid()) {
-		if (status.disabled || ((1 << (b->get_button_index() - 1)) & button_mask) == 0)
+		if (((1 << (b->get_button_index() - 1)) & button_mask) == 0)
 			return;
 
 		if (status.pressing_button)
@@ -282,10 +282,7 @@ void BaseButton::_notification(int p_what) {
 	if (p_what == NOTIFICATION_ENTER_TREE) {
 	}
 
-	if (p_what == NOTIFICATION_EXIT_TREE) {
-	}
-
-	if (p_what == NOTIFICATION_VISIBILITY_CHANGED && !is_visible_in_tree()) {
+	if (p_what == NOTIFICATION_EXIT_TREE || (p_what == NOTIFICATION_VISIBILITY_CHANGED && !is_visible_in_tree())) {
 
 		if (!toggle_mode) {
 			status.pressed = false;
@@ -379,7 +376,7 @@ BaseButton::DrawMode BaseButton::get_draw_mode() const {
 		bool pressing;
 		if (status.press_attempt) {
 
-			pressing = status.pressing_inside;
+			pressing = (status.pressing_inside || keep_pressed_outside);
 			if (status.pressed)
 				pressing = !pressing;
 		} else {
@@ -449,6 +446,16 @@ Control::FocusMode BaseButton::get_enabled_focus_mode() const {
 	return enabled_focus_mode;
 }
 
+void BaseButton::set_keep_pressed_outside(bool p_on) {
+
+	keep_pressed_outside = p_on;
+}
+
+bool BaseButton::is_keep_pressed_outside() const {
+
+	return keep_pressed_outside;
+}
+
 void BaseButton::set_shortcut(const Ref<ShortCut> &p_shortcut) {
 
 	if (shortcut.is_null() == p_shortcut.is_null())
@@ -531,6 +538,8 @@ void BaseButton::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_draw_mode"), &BaseButton::get_draw_mode);
 	ClassDB::bind_method(D_METHOD("set_enabled_focus_mode", "mode"), &BaseButton::set_enabled_focus_mode);
 	ClassDB::bind_method(D_METHOD("get_enabled_focus_mode"), &BaseButton::get_enabled_focus_mode);
+	ClassDB::bind_method(D_METHOD("set_keep_pressed_outside", "enabled"), &BaseButton::set_keep_pressed_outside);
+	ClassDB::bind_method(D_METHOD("is_keep_pressed_outside"), &BaseButton::is_keep_pressed_outside);
 
 	ClassDB::bind_method(D_METHOD("set_shortcut", "shortcut"), &BaseButton::set_shortcut);
 	ClassDB::bind_method(D_METHOD("get_shortcut"), &BaseButton::get_shortcut);
@@ -552,6 +561,7 @@ void BaseButton::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "action_mode", PROPERTY_HINT_ENUM, "Button Press,Button Release"), "set_action_mode", "get_action_mode");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "button_mask", PROPERTY_HINT_FLAGS, "Mouse Left, Mouse Right, Mouse Middle"), "set_button_mask", "get_button_mask");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "enabled_focus_mode", PROPERTY_HINT_ENUM, "None,Click,All"), "set_enabled_focus_mode", "get_enabled_focus_mode");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "keep_pressed_outside"), "set_keep_pressed_outside", "is_keep_pressed_outside");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shortcut", PROPERTY_HINT_RESOURCE_TYPE, "ShortCut"), "set_shortcut", "get_shortcut");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "group", PROPERTY_HINT_RESOURCE_TYPE, "ButtonGroup"), "set_button_group", "get_button_group");
 
@@ -569,6 +579,7 @@ BaseButton::BaseButton() {
 
 	toggle_mode = false;
 	shortcut_in_tooltip = true;
+	keep_pressed_outside = false;
 	status.pressed = false;
 	status.press_attempt = false;
 	status.hovering = false;
diff --git a/scene/gui/base_button.h b/scene/gui/base_button.h
index 9a00cc79f2..22a8f6d8fe 100644
--- a/scene/gui/base_button.h
+++ b/scene/gui/base_button.h
@@ -52,6 +52,7 @@ private:
 	int button_mask;
 	bool toggle_mode;
 	bool shortcut_in_tooltip;
+	bool keep_pressed_outside;
 	FocusMode enabled_focus_mode;
 	Ref<ShortCut> shortcut;
 
@@ -110,6 +111,9 @@ public:
 	void set_action_mode(ActionMode p_mode);
 	ActionMode get_action_mode() const;
 
+	void set_keep_pressed_outside(bool p_on);
+	bool is_keep_pressed_outside() const;
+
 	void set_button_mask(int p_mask);
 	int get_button_mask() const;
 
diff --git a/scene/gui/button.cpp b/scene/gui/button.cpp
index c734136895..65e9cccd05 100644
--- a/scene/gui/button.cpp
+++ b/scene/gui/button.cpp
@@ -29,6 +29,7 @@
 /*************************************************************************/
 
 #include "button.h"
+
 #include "core/translation.h"
 #include "servers/visual_server.h"
 
@@ -102,6 +103,7 @@ void Button::_notification(int p_what) {
 
 					break;
 				}
+				FALLTHROUGH;
 			}
 			case DRAW_PRESSED: {
 
diff --git a/scene/gui/check_button.cpp b/scene/gui/check_button.cpp
index 35e3119473..a2d0f388c4 100644
--- a/scene/gui/check_button.cpp
+++ b/scene/gui/check_button.cpp
@@ -34,13 +34,15 @@
 #include "servers/visual_server.h"
 
 Size2 CheckButton::get_icon_size() const {
-	Ref<Texture> on = Control::get_icon("on");
-	Ref<Texture> off = Control::get_icon("off");
+
+	Ref<Texture> on = Control::get_icon(is_disabled() ? "on_disabled" : "on");
+	Ref<Texture> off = Control::get_icon(is_disabled() ? "off_disabled" : "off");
 	Size2 tex_size = Size2(0, 0);
 	if (!on.is_null())
 		tex_size = Size2(on->get_width(), on->get_height());
 	if (!off.is_null())
 		tex_size = Size2(MAX(tex_size.width, off->get_width()), MAX(tex_size.height, off->get_height()));
+
 	return tex_size;
 }
 
@@ -49,9 +51,8 @@ Size2 CheckButton::get_minimum_size() const {
 	Size2 minsize = Button::get_minimum_size();
 	Size2 tex_size = get_icon_size();
 	minsize.width += tex_size.width;
-	if (get_text().length() > 0) {
+	if (get_text().length() > 0)
 		minsize.width += get_constant("hseparation");
-	}
 	Ref<StyleBox> sb = get_stylebox("normal");
 	minsize.height = MAX(minsize.height, tex_size.height + sb->get_margin(MARGIN_TOP) + sb->get_margin(MARGIN_BOTTOM));
 
@@ -67,8 +68,8 @@ void CheckButton::_notification(int p_what) {
 
 		RID ci = get_canvas_item();
 
-		Ref<Texture> on = Control::get_icon("on");
-		Ref<Texture> off = Control::get_icon("off");
+		Ref<Texture> on = Control::get_icon(is_disabled() ? "on_disabled" : "on");
+		Ref<Texture> off = Control::get_icon(is_disabled() ? "off_disabled" : "off");
 
 		Ref<StyleBox> sb = get_stylebox("normal");
 		Vector2 ofs;
diff --git a/scene/gui/color_picker.cpp b/scene/gui/color_picker.cpp
index 7aca6acd00..bca3471091 100644
--- a/scene/gui/color_picker.cpp
+++ b/scene/gui/color_picker.cpp
@@ -38,8 +38,6 @@
 #include "editor_scale.h"
 #include "editor_settings.h"
 #endif
-
-#include "scene/gui/separator.h"
 #include "scene/main/viewport.h"
 
 void ColorPicker::_notification(int p_what) {
@@ -469,7 +467,7 @@ void ColorPicker::_preset_input(const Ref<InputEvent> &p_event) {
 			set_pick_color(presets[index]);
 			_update_color();
 			emit_signal("color_changed", color);
-		} else if (bev->is_pressed() && bev->get_button_index() == BUTTON_RIGHT) {
+		} else if (bev->is_pressed() && bev->get_button_index() == BUTTON_RIGHT && presets_enabled) {
 			int index = bev->get_position().x / (preset->get_size().x / presets.size());
 			Color clicked_preset = presets[index];
 			erase_preset(clicked_preset);
@@ -565,6 +563,31 @@ void ColorPicker::_html_focus_exit() {
 	_focus_exit();
 }
 
+void ColorPicker::set_presets_enabled(bool p_enabled) {
+	presets_enabled = p_enabled;
+	if (!p_enabled) {
+		bt_add_preset->set_disabled(true);
+		bt_add_preset->set_focus_mode(FOCUS_NONE);
+	} else {
+		bt_add_preset->set_disabled(false);
+		bt_add_preset->set_focus_mode(FOCUS_ALL);
+	}
+}
+
+bool ColorPicker::are_presets_enabled() const {
+	return presets_enabled;
+}
+
+void ColorPicker::set_presets_visible(bool p_visible) {
+	presets_visible = p_visible;
+	preset_separator->set_visible(p_visible);
+	preset_container->set_visible(p_visible);
+}
+
+bool ColorPicker::are_presets_visible() const {
+	return presets_visible;
+}
+
 void ColorPicker::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_pick_color", "color"), &ColorPicker::set_pick_color);
@@ -575,6 +598,10 @@ void ColorPicker::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_deferred_mode"), &ColorPicker::is_deferred_mode);
 	ClassDB::bind_method(D_METHOD("set_edit_alpha", "show"), &ColorPicker::set_edit_alpha);
 	ClassDB::bind_method(D_METHOD("is_editing_alpha"), &ColorPicker::is_editing_alpha);
+	ClassDB::bind_method(D_METHOD("set_presets_enabled", "enabled"), &ColorPicker::set_presets_enabled);
+	ClassDB::bind_method(D_METHOD("are_presets_enabled"), &ColorPicker::are_presets_enabled);
+	ClassDB::bind_method(D_METHOD("set_presets_visible", "visible"), &ColorPicker::set_presets_visible);
+	ClassDB::bind_method(D_METHOD("are_presets_visible"), &ColorPicker::are_presets_visible);
 	ClassDB::bind_method(D_METHOD("add_preset", "color"), &ColorPicker::add_preset);
 	ClassDB::bind_method(D_METHOD("erase_preset", "color"), &ColorPicker::erase_preset);
 	ClassDB::bind_method(D_METHOD("get_presets"), &ColorPicker::get_presets);
@@ -598,6 +625,8 @@ void ColorPicker::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "edit_alpha"), "set_edit_alpha", "is_editing_alpha");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "raw_mode"), "set_raw_mode", "is_raw_mode");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "deferred_mode"), "set_deferred_mode", "is_deferred_mode");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "presets_enabled"), "set_presets_enabled", "are_presets_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "presets_visible"), "set_presets_visible", "are_presets_visible");
 
 	ADD_SIGNAL(MethodInfo("color_changed", PropertyInfo(Variant::COLOR, "color")));
 	ADD_SIGNAL(MethodInfo("preset_added", PropertyInfo(Variant::COLOR, "color")));
@@ -613,6 +642,8 @@ ColorPicker::ColorPicker() :
 	raw_mode_enabled = false;
 	deferred_mode_enabled = false;
 	changing_color = false;
+	presets_enabled = true;
+	presets_visible = true;
 	screen = NULL;
 
 	HBoxContainer *hb_smpl = memnew(HBoxContainer);
@@ -725,18 +756,19 @@ ColorPicker::ColorPicker() :
 
 	set_pick_color(Color(1, 1, 1));
 
-	add_child(memnew(HSeparator));
+	preset_separator = memnew(HSeparator);
+	add_child(preset_separator);
 
-	HBoxContainer *bbc = memnew(HBoxContainer);
-	add_child(bbc);
+	preset_container = memnew(HBoxContainer);
+	add_child(preset_container);
 
 	preset = memnew(TextureRect);
-	bbc->add_child(preset);
+	preset_container->add_child(preset);
 	preset->connect("gui_input", this, "_preset_input");
 	preset->connect("draw", this, "_update_presets");
 
 	bt_add_preset = memnew(Button);
-	bbc->add_child(bt_add_preset);
+	preset_container->add_child(bt_add_preset);
 	bt_add_preset->set_tooltip(TTR("Add current color as a preset."));
 	bt_add_preset->connect("pressed", this, "_add_preset_pressed");
 }
@@ -758,23 +790,33 @@ void ColorPickerButton::_modal_closed() {
 void ColorPickerButton::pressed() {
 
 	_update_picker();
-	popup->set_position(get_global_position() - picker->get_combined_minimum_size());
+	popup->set_position(get_global_position() - picker->get_combined_minimum_size() * get_global_transform().get_scale());
+	popup->set_scale(get_global_transform().get_scale());
 	popup->popup();
 	picker->set_focus_on_line_edit();
 }
 
 void ColorPickerButton::_notification(int p_what) {
 
-	if (p_what == NOTIFICATION_DRAW) {
+	switch (p_what) {
+		case NOTIFICATION_DRAW: {
 
-		Ref<StyleBox> normal = get_stylebox("normal");
-		Rect2 r = Rect2(normal->get_offset(), get_size() - normal->get_minimum_size());
-		draw_texture_rect(Control::get_icon("bg", "ColorPickerButton"), r, true);
-		draw_rect(r, color);
+			Ref<StyleBox> normal = get_stylebox("normal");
+			Rect2 r = Rect2(normal->get_offset(), get_size() - normal->get_minimum_size());
+			draw_texture_rect(Control::get_icon("bg", "ColorPickerButton"), r, true);
+			draw_rect(r, color);
+		} break;
+		case MainLoop::NOTIFICATION_WM_QUIT_REQUEST: {
+
+			if (popup)
+				popup->hide();
+		} break;
 	}
 
-	if (p_what == MainLoop::NOTIFICATION_WM_QUIT_REQUEST && popup) {
-		popup->hide();
+	if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
+		if (popup && !is_visible_in_tree()) {
+			popup->hide();
+		}
 	}
 }
 
@@ -825,6 +867,8 @@ void ColorPickerButton::_update_picker() {
 		add_child(popup);
 		picker->connect("color_changed", this, "_color_changed");
 		popup->connect("modal_closed", this, "_modal_closed");
+		popup->connect("about_to_show", this, "set_pressed", varray(true));
+		popup->connect("popup_hide", this, "set_pressed", varray(false));
 		picker->set_pick_color(color);
 		picker->set_edit_alpha(edit_alpha);
 	}
@@ -855,4 +899,6 @@ ColorPickerButton::ColorPickerButton() {
 	picker = NULL;
 	popup = NULL;
 	edit_alpha = true;
+
+	set_toggle_mode(true);
 }
diff --git a/scene/gui/color_picker.h b/scene/gui/color_picker.h
index b78844839a..b5ddf2d0c2 100644
--- a/scene/gui/color_picker.h
+++ b/scene/gui/color_picker.h
@@ -37,6 +37,7 @@
 #include "scene/gui/label.h"
 #include "scene/gui/line_edit.h"
 #include "scene/gui/popup.h"
+#include "scene/gui/separator.h"
 #include "scene/gui/slider.h"
 #include "scene/gui/spin_box.h"
 #include "scene/gui/texture_rect.h"
@@ -52,6 +53,8 @@ private:
 	Control *w_edit;
 	TextureRect *sample;
 	TextureRect *preset;
+	HBoxContainer *preset_container;
+	HSeparator *preset_separator;
 	Button *bt_add_preset;
 	List<Color> presets;
 	ToolButton *btn_pick;
@@ -70,6 +73,8 @@ private:
 	bool deferred_mode_enabled;
 	bool updating;
 	bool changing_color;
+	bool presets_enabled;
+	bool presets_visible;
 	float h, s, v;
 	Color last_hsv;
 
@@ -114,6 +119,12 @@ public:
 	void set_deferred_mode(bool p_enabled);
 	bool is_deferred_mode() const;
 
+	void set_presets_enabled(bool p_enabled);
+	bool are_presets_enabled() const;
+
+	void set_presets_visible(bool p_visible);
+	bool are_presets_visible() const;
+
 	void set_focus_on_line_edit();
 
 	ColorPicker();
diff --git a/scene/gui/control.cpp b/scene/gui/control.cpp
index c7cd2bb6d8..a38f97a90c 100644
--- a/scene/gui/control.cpp
+++ b/scene/gui/control.cpp
@@ -2634,6 +2634,12 @@ bool Control::is_visibility_clip_disabled() const {
 
 void Control::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	Node::get_argument_options(p_function, p_idx, r_options);
 
 	if (p_idx == 0) {
@@ -2651,7 +2657,7 @@ void Control::get_argument_options(const StringName &p_function, int p_idx, List
 
 		sn.sort_custom<StringName::AlphCompare>();
 		for (List<StringName>::Element *E = sn.front(); E; E = E->next()) {
-			r_options->push_back("\"" + E->get() + "\"");
+			r_options->push_back(quote_style + E->get() + quote_style);
 		}
 	}
 }
diff --git a/scene/gui/file_dialog.cpp b/scene/gui/file_dialog.cpp
index 059e59ea21..5671b41de8 100644
--- a/scene/gui/file_dialog.cpp
+++ b/scene/gui/file_dialog.cpp
@@ -86,7 +86,9 @@ void FileDialog::_unhandled_input(const Ref<InputEvent> &p_event) {
 
 					_dir_entered("..");
 				} break;
-				default: { handled = false; }
+				default: {
+					handled = false;
+				}
 			}
 
 			if (handled)
diff --git a/scene/gui/graph_edit.cpp b/scene/gui/graph_edit.cpp
index 68e734502b..dabff08fea 100644
--- a/scene/gui/graph_edit.cpp
+++ b/scene/gui/graph_edit.cpp
@@ -770,7 +770,9 @@ void GraphEdit::_top_layer_draw() {
 	}
 
 	if (box_selecting)
-		top_layer->draw_rect(box_selecting_rect, Color(0.7, 0.7, 1.0, 0.3));
+		top_layer->draw_rect(
+				box_selecting_rect,
+				get_color("accent_color", "Editor") * Color(1, 1, 1, 0.375));
 }
 
 void GraphEdit::set_selected(Node *p_child) {
@@ -1051,7 +1053,7 @@ void GraphEdit::set_connection_activity(const StringName &p_from, int p_from_por
 
 		if (E->get().from == p_from && E->get().from_port == p_from_port && E->get().to == p_to && E->get().to_port == p_to_port) {
 
-			if (ABS(E->get().activity - p_activity) < CMP_EPSILON) {
+			if (Math::is_equal_approx(E->get().activity, p_activity)) {
 				//update only if changed
 				top_layer->update();
 				connections_layer->update();
diff --git a/scene/gui/line_edit.cpp b/scene/gui/line_edit.cpp
index bf6833e512..d889c8d8b8 100644
--- a/scene/gui/line_edit.cpp
+++ b/scene/gui/line_edit.cpp
@@ -29,6 +29,7 @@
 /*************************************************************************/
 
 #include "line_edit.h"
+
 #include "core/message_queue.h"
 #include "core/os/keyboard.h"
 #include "core/os/os.h"
@@ -55,6 +56,7 @@ void LineEdit::_gui_input(Ref<InputEvent> p_event) {
 		if (b->is_pressed() && b->get_button_index() == BUTTON_RIGHT && context_menu_enabled) {
 			menu->set_position(get_global_transform().xform(get_local_mouse_position()));
 			menu->set_size(Vector2(1, 1));
+			menu->set_scale(get_global_transform().get_scale());
 			menu->popup();
 			grab_focus();
 			return;
@@ -320,7 +322,7 @@ void LineEdit::_gui_input(Ref<InputEvent> p_event) {
 						handled = false;
 						break;
 					}
-					// numlock disabled. fallthrough to key_left
+					FALLTHROUGH;
 				}
 				case KEY_LEFT: {
 
@@ -367,7 +369,7 @@ void LineEdit::_gui_input(Ref<InputEvent> p_event) {
 						handled = false;
 						break;
 					}
-					// numlock disabled. fallthrough to key_right
+					FALLTHROUGH;
 				}
 				case KEY_RIGHT: {
 
@@ -474,7 +476,7 @@ void LineEdit::_gui_input(Ref<InputEvent> p_event) {
 						handled = false;
 						break;
 					}
-					// numlock disabled. fallthrough to key_home
+					FALLTHROUGH;
 				}
 				case KEY_HOME: {
 
@@ -487,7 +489,7 @@ void LineEdit::_gui_input(Ref<InputEvent> p_event) {
 						handled = false;
 						break;
 					}
-					// numlock disabled. fallthrough to key_end
+					FALLTHROUGH;
 				}
 				case KEY_END: {
 
@@ -721,6 +723,8 @@ void LineEdit::_notification(int p_what) {
 				} else {
 					x_ofs = MAX(style->get_margin(MARGIN_LEFT), x_ofs - r_icon->get_width() - style->get_margin(MARGIN_RIGHT));
 				}
+
+				ofs_max -= r_icon->get_width();
 			}
 
 			int caret_height = font->get_height() > y_area ? y_area : font->get_height();
@@ -917,6 +921,10 @@ void LineEdit::undo() {
 	TextOperation op = undo_stack_pos->get();
 	text = op.text;
 	set_cursor_position(op.cursor_pos);
+
+	if (expand_to_text_length)
+		minimum_size_changed();
+
 	_emit_text_change();
 }
 
@@ -931,6 +939,10 @@ void LineEdit::redo() {
 	TextOperation op = undo_stack_pos->get();
 	text = op.text;
 	set_cursor_position(op.cursor_pos);
+
+	if (expand_to_text_length)
+		minimum_size_changed();
+
 	_emit_text_change();
 }
 
@@ -1158,8 +1170,10 @@ void LineEdit::set_cursor_position(int p_pos) {
 	} else if (cursor_pos > window_pos) {
 		/* Adjust window if cursor goes too much to the right */
 		int window_width = get_size().width - style->get_minimum_size().width;
-		if (right_icon.is_valid()) {
-			window_width -= right_icon->get_width();
+		bool display_clear_icon = !text.empty() && is_editable() && clear_button_enabled;
+		if (right_icon.is_valid() || display_clear_icon) {
+			Ref<Texture> r_icon = display_clear_icon ? Control::get_icon("clear") : right_icon;
+			window_width -= r_icon->get_width();
 		}
 
 		if (window_width < 0)
@@ -1223,6 +1237,7 @@ void LineEdit::append_at_cursor(String p_text) {
 
 void LineEdit::clear_internal() {
 
+	deselect();
 	_clear_undo_stack();
 	cached_width = 0;
 	cursor_pos = 0;
@@ -1313,7 +1328,27 @@ void LineEdit::select_all() {
 
 void LineEdit::set_editable(bool p_editable) {
 
+	if (editable == p_editable)
+		return;
+
 	editable = p_editable;
+
+	// Reorganize context menu.
+	menu->clear();
+	if (editable)
+		menu->add_item(RTR("Cut"), MENU_CUT, KEY_MASK_CMD | KEY_X);
+	menu->add_item(RTR("Copy"), MENU_COPY, KEY_MASK_CMD | KEY_C);
+	if (editable)
+		menu->add_item(RTR("Paste"), MENU_PASTE, KEY_MASK_CMD | KEY_V);
+	menu->add_separator();
+	menu->add_item(RTR("Select All"), MENU_SELECT_ALL, KEY_MASK_CMD | KEY_A);
+	if (editable) {
+		menu->add_item(RTR("Clear"), MENU_CLEAR);
+		menu->add_separator();
+		menu->add_item(RTR("Undo"), MENU_UNDO, KEY_MASK_CMD | KEY_Z);
+		menu->add_item(RTR("Redo"), MENU_REDO, KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_Z);
+	}
+
 	update();
 }
 
@@ -1609,7 +1644,6 @@ LineEdit::LineEdit() {
 
 	deselect();
 	set_focus_mode(FOCUS_ALL);
-	editable = true;
 	set_default_cursor_shape(CURSOR_IBEAM);
 	set_mouse_filter(MOUSE_FILTER_STOP);
 
@@ -1624,15 +1658,7 @@ LineEdit::LineEdit() {
 	context_menu_enabled = true;
 	menu = memnew(PopupMenu);
 	add_child(menu);
-	menu->add_item(RTR("Cut"), MENU_CUT, KEY_MASK_CMD | KEY_X);
-	menu->add_item(RTR("Copy"), MENU_COPY, KEY_MASK_CMD | KEY_C);
-	menu->add_item(RTR("Paste"), MENU_PASTE, KEY_MASK_CMD | KEY_V);
-	menu->add_separator();
-	menu->add_item(RTR("Select All"), MENU_SELECT_ALL, KEY_MASK_CMD | KEY_A);
-	menu->add_item(RTR("Clear"), MENU_CLEAR);
-	menu->add_separator();
-	menu->add_item(RTR("Undo"), MENU_UNDO, KEY_MASK_CMD | KEY_Z);
-	menu->add_item(RTR("Redo"), MENU_REDO, KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_Z);
+	set_editable(true);
 	menu->connect("id_pressed", this, "menu_option");
 	expand_to_text_length = false;
 }
diff --git a/scene/gui/menu_button.cpp b/scene/gui/menu_button.cpp
index b67d8c00d6..e12cd55e6f 100644
--- a/scene/gui/menu_button.cpp
+++ b/scene/gui/menu_button.cpp
@@ -55,8 +55,9 @@ void MenuButton::pressed() {
 	Size2 size = get_size();
 
 	Point2 gp = get_global_position();
-	popup->set_global_position(gp + Size2(0, size.height));
+	popup->set_global_position(gp + Size2(0, size.height * get_global_transform().get_scale().y));
 	popup->set_size(Size2(size.width, 0));
+	popup->set_scale(get_global_transform().get_scale());
 	popup->set_parent_rect(Rect2(Point2(gp - popup->get_global_position()), get_size()));
 	popup->popup();
 }
@@ -91,6 +92,16 @@ bool MenuButton::is_switch_on_hover() {
 	return switch_on_hover;
 }
 
+void MenuButton::_notification(int p_what) {
+
+	if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
+
+		if (!is_visible_in_tree()) {
+			popup->hide();
+		}
+	}
+}
+
 void MenuButton::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_popup"), &MenuButton::get_popup);
@@ -116,15 +127,18 @@ MenuButton::MenuButton() {
 
 	switch_on_hover = false;
 	set_flat(true);
+	set_toggle_mode(true);
 	set_disable_shortcuts(false);
 	set_enabled_focus_mode(FOCUS_NONE);
+	set_process_unhandled_key_input(true);
+	set_action_mode(ACTION_MODE_BUTTON_PRESS);
+
 	popup = memnew(PopupMenu);
 	popup->hide();
 	add_child(popup);
-	popup->set_as_toplevel(true);
 	popup->set_pass_on_modal_close_click(false);
-	set_process_unhandled_key_input(true);
-	set_action_mode(ACTION_MODE_BUTTON_PRESS);
+	popup->connect("about_to_show", this, "set_pressed", varray(true)); // For when switching from another MenuButton.
+	popup->connect("popup_hide", this, "set_pressed", varray(false));
 }
 
 MenuButton::~MenuButton() {
diff --git a/scene/gui/menu_button.h b/scene/gui/menu_button.h
index 794840035e..42e909d991 100644
--- a/scene/gui/menu_button.h
+++ b/scene/gui/menu_button.h
@@ -52,6 +52,7 @@ class MenuButton : public Button {
 	void _gui_input(Ref<InputEvent> p_event);
 
 protected:
+	void _notification(int p_what);
 	static void _bind_methods();
 
 public:
diff --git a/scene/gui/option_button.cpp b/scene/gui/option_button.cpp
index b9b270ce0c..694065497a 100644
--- a/scene/gui/option_button.cpp
+++ b/scene/gui/option_button.cpp
@@ -72,6 +72,11 @@ void OptionButton::_notification(int p_what) {
 
 		Point2 ofs(size.width - arrow->get_width() - get_constant("arrow_margin"), int(Math::abs((size.height - arrow->get_height()) / 2)));
 		arrow->draw(ci, ofs, clr);
+	} else if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
+
+		if (!is_visible_in_tree()) {
+			popup->hide();
+		}
 	}
 }
 
@@ -104,21 +109,21 @@ void OptionButton::_selected(int p_which) {
 void OptionButton::pressed() {
 
 	Size2 size = get_size();
-	popup->set_global_position(get_global_position() + Size2(0, size.height));
+	popup->set_global_position(get_global_position() + Size2(0, size.height * get_global_transform().get_scale().y));
 	popup->set_size(Size2(size.width, 0));
-
+	popup->set_scale(get_global_transform().get_scale());
 	popup->popup();
 }
 
-void OptionButton::add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID) {
+void OptionButton::add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_id) {
 
-	popup->add_icon_radio_check_item(p_icon, p_label, p_ID);
+	popup->add_icon_radio_check_item(p_icon, p_label, p_id);
 	if (popup->get_item_count() == 1)
 		select(0);
 }
-void OptionButton::add_item(const String &p_label, int p_ID) {
+void OptionButton::add_item(const String &p_label, int p_id) {
 
-	popup->add_radio_check_item(p_label, p_ID);
+	popup->add_radio_check_item(p_label, p_id);
 	if (popup->get_item_count() == 1)
 		select(0);
 }
@@ -131,9 +136,9 @@ void OptionButton::set_item_icon(int p_idx, const Ref<Texture> &p_icon) {
 
 	popup->set_item_icon(p_idx, p_icon);
 }
-void OptionButton::set_item_id(int p_idx, int p_ID) {
+void OptionButton::set_item_id(int p_idx, int p_id) {
 
-	popup->set_item_id(p_idx, p_ID);
+	popup->set_item_id(p_idx, p_id);
 }
 
 void OptionButton::set_item_metadata(int p_idx, const Variant &p_metadata) {
@@ -333,23 +338,25 @@ void OptionButton::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "items", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_items", "_get_items");
 	// "selected" property must come after "items", otherwise GH-10213 occurs
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "selected"), "_select_int", "get_selected");
-	ADD_SIGNAL(MethodInfo("item_selected", PropertyInfo(Variant::INT, "ID")));
-	ADD_SIGNAL(MethodInfo("item_focused", PropertyInfo(Variant::INT, "ID")));
+	ADD_SIGNAL(MethodInfo("item_selected", PropertyInfo(Variant::INT, "id")));
+	ADD_SIGNAL(MethodInfo("item_focused", PropertyInfo(Variant::INT, "id")));
 }
 
 OptionButton::OptionButton() {
 
 	current = -1;
+	set_toggle_mode(true);
 	set_text_align(ALIGN_LEFT);
 	set_action_mode(ACTION_MODE_BUTTON_PRESS);
 
 	popup = memnew(PopupMenu);
 	popup->hide();
 	add_child(popup);
-	popup->set_as_toplevel(true);
 	popup->set_pass_on_modal_close_click(false);
+	popup->set_notify_transform(true);
 	popup->connect("id_pressed", this, "_selected");
 	popup->connect("id_focused", this, "_focused");
+	popup->connect("popup_hide", this, "set_pressed", varray(false));
 }
 
 OptionButton::~OptionButton() {
diff --git a/scene/gui/option_button.h b/scene/gui/option_button.h
index 63b451377a..51d5fd6947 100644
--- a/scene/gui/option_button.h
+++ b/scene/gui/option_button.h
@@ -59,12 +59,12 @@ protected:
 	static void _bind_methods();
 
 public:
-	void add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID = -1);
-	void add_item(const String &p_label, int p_ID = -1);
+	void add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_id = -1);
+	void add_item(const String &p_label, int p_id = -1);
 
 	void set_item_text(int p_idx, const String &p_text);
 	void set_item_icon(int p_idx, const Ref<Texture> &p_icon);
-	void set_item_id(int p_idx, int p_ID);
+	void set_item_id(int p_idx, int p_id);
 	void set_item_metadata(int p_idx, const Variant &p_metadata);
 	void set_item_disabled(int p_idx, bool p_disabled);
 
diff --git a/scene/gui/popup.cpp b/scene/gui/popup.cpp
index 80ec7049fc..b7601bdd3e 100644
--- a/scene/gui/popup.cpp
+++ b/scene/gui/popup.cpp
@@ -65,7 +65,7 @@ void Popup::_notification(int p_what) {
 void Popup::_fix_size() {
 
 	Point2 pos = get_global_position();
-	Size2 size = get_size();
+	Size2 size = get_size() * get_scale();
 	Point2 window_size = get_viewport_rect().size;
 
 	if (pos.x + size.width > window_size.width)
diff --git a/scene/gui/popup_menu.cpp b/scene/gui/popup_menu.cpp
index 28b124d143..984307530d 100644
--- a/scene/gui/popup_menu.cpp
+++ b/scene/gui/popup_menu.cpp
@@ -54,9 +54,11 @@ Size2 PopupMenu::get_minimum_size() const {
 	Ref<Font> font = get_font("font");
 
 	float max_w = 0;
+	float icon_w = 0;
 	int font_h = font->get_height();
-	int check_w = MAX(get_icon("checked")->get_width(), get_icon("radio_checked")->get_width());
+	int check_w = MAX(get_icon("checked")->get_width(), get_icon("radio_checked")->get_width()) + hseparation;
 	int accel_max_w = 0;
+	bool has_check = false;
 
 	for (int i = 0; i < items.size(); i++) {
 
@@ -65,8 +67,7 @@ Size2 PopupMenu::get_minimum_size() const {
 
 			Size2 icon_size = items[i].icon->get_size();
 			size.height = MAX(icon_size.height, font_h);
-			size.width += icon_size.width;
-			size.width += hseparation;
+			icon_w = MAX(icon_size.width + hseparation, icon_w);
 		} else {
 
 			size.height = font_h;
@@ -74,10 +75,8 @@ Size2 PopupMenu::get_minimum_size() const {
 
 		size.width += items[i].h_ofs;
 
-		if (items[i].checkable_type) {
-
-			size.width += check_w + hseparation;
-		}
+		if (items[i].checkable_type)
+			has_check = true;
 
 		String text = items[i].shortcut.is_valid() ? String(tr(items[i].shortcut->get_name())) : items[i].xl_text;
 		size.width += font->get_string_size(text).width;
@@ -91,16 +90,17 @@ Size2 PopupMenu::get_minimum_size() const {
 			accel_max_w = MAX(accel_w, accel_max_w);
 		}
 
-		if (items[i].submenu != "") {
-
+		if (items[i].submenu != "")
 			size.width += get_icon("submenu")->get_width();
-		}
 
-		minsize.height += size.height;
 		max_w = MAX(max_w, size.width);
+
+		minsize.height += size.height;
 	}
 
-	minsize.width += max_w + accel_max_w;
+	minsize.width += max_w + icon_w + accel_max_w;
+	if (has_check)
+		minsize.width += check_w;
 
 	return minsize;
 }
@@ -147,10 +147,10 @@ int PopupMenu::_get_mouse_over(const Point2 &p_over) const {
 void PopupMenu::_activate_submenu(int over) {
 
 	Node *n = get_node(items[over].submenu);
-	ERR_EXPLAIN("item subnode does not exist: " + items[over].submenu);
+	ERR_EXPLAIN("Item subnode does not exist: " + items[over].submenu);
 	ERR_FAIL_COND(!n);
 	Popup *pm = Object::cast_to<Popup>(n);
-	ERR_EXPLAIN("item subnode is not a Popup: " + items[over].submenu);
+	ERR_EXPLAIN("Item subnode is not a Popup: " + items[over].submenu);
 	ERR_FAIL_COND(!pm);
 	if (pm->is_visible_in_tree())
 		return; //already visible!
@@ -159,13 +159,14 @@ void PopupMenu::_activate_submenu(int over) {
 	Rect2 pr(p, get_size());
 	Ref<StyleBox> style = get_stylebox("panel");
 
-	Point2 pos = p + Point2(get_size().width, items[over]._ofs_cache - style->get_offset().y);
+	Point2 pos = p + Point2(get_size().width, items[over]._ofs_cache - style->get_offset().y) * get_global_transform().get_scale();
 	Size2 size = pm->get_size();
 	// fix pos
 	if (pos.x + size.width > get_viewport_rect().size.width)
 		pos.x = p.x - size.width;
 
 	pm->set_position(pos);
+	pm->set_scale(get_global_transform().get_scale());
 	pm->popup();
 
 	PopupMenu *pum = Object::cast_to<PopupMenu>(pm);
@@ -196,11 +197,11 @@ void PopupMenu::_scroll(float p_factor, const Point2 &p_over) {
 	int vseparation = get_constant("vseparation");
 	Ref<Font> font = get_font("font");
 
-	float dy = (vseparation + font->get_height()) * 3 * p_factor;
+	float dy = (vseparation + font->get_height()) * 3 * p_factor * get_global_transform().get_scale().y;
 	if (dy > 0 && global_y < 0)
 		dy = MIN(dy, -global_y - 1);
-	else if (dy < 0 && global_y + get_size().y > get_viewport_rect().size.y)
-		dy = -MIN(-dy, global_y + get_size().y - get_viewport_rect().size.y - 1);
+	else if (dy < 0 && global_y + get_size().y * get_global_transform().get_scale().y > get_viewport_rect().size.y)
+		dy = -MIN(-dy, global_y + get_size().y * get_global_transform().get_scale().y - get_viewport_rect().size.y - 1);
 	set_position(get_position() + Vector2(0, dy));
 
 	Ref<InputEventMouseMotion> ie;
@@ -239,7 +240,7 @@ void PopupMenu::_gui_input(const Ref<InputEvent> &p_event) {
 
 		for (int i = search_from; i >= 0; i--) {
 
-			if (i < 0 || i >= items.size())
+			if (i >= items.size())
 				continue;
 
 			if (!items[i].separator && !items[i].disabled) {
@@ -289,7 +290,7 @@ void PopupMenu::_gui_input(const Ref<InputEvent> &p_event) {
 
 			case BUTTON_WHEEL_DOWN: {
 
-				if (get_global_position().y + get_size().y > get_viewport_rect().size.y) {
+				if (get_global_position().y + get_size().y * get_global_transform().get_scale().y > get_viewport_rect().size.y) {
 					_scroll(-b->get_factor(), b->get_position());
 				}
 			} break;
@@ -354,7 +355,7 @@ void PopupMenu::_gui_input(const Ref<InputEvent> &p_event) {
 		}
 
 		int over = _get_mouse_over(m->get_position());
-		int id = (over < 0 || items[over].separator || items[over].disabled) ? -1 : (items[over].ID >= 0 ? items[over].ID : over);
+		int id = (over < 0 || items[over].separator || items[over].disabled) ? -1 : (items[over].id >= 0 ? items[over].id : over);
 
 		if (id < 0) {
 			mouse_over = -1;
@@ -415,7 +416,6 @@ void PopupMenu::_notification(int p_what) {
 
 			minimum_size_changed();
 			update();
-
 		} break;
 		case NOTIFICATION_DRAW: {
 
@@ -443,15 +443,31 @@ void PopupMenu::_notification(int p_what) {
 			Color font_color_hover = get_color("font_color_hover");
 			float font_h = font->get_height();
 
+			// Add the check and the wider icon to the offset of all items.
+			float icon_ofs = 0.0;
+			bool has_check = false;
+			for (int i = 0; i < items.size(); i++) {
+
+				if (!items[i].icon.is_null())
+					icon_ofs = MAX(items[i].icon->get_size().width, icon_ofs);
+
+				if (items[i].checkable_type)
+					has_check = true;
+			}
+			if (icon_ofs > 0.0)
+				icon_ofs += hseparation;
+
+			float check_ofs = 0.0;
+			if (has_check)
+				check_ofs = MAX(get_icon("checked")->get_width(), get_icon("radio_checked")->get_width()) + hseparation;
+
 			for (int i = 0; i < items.size(); i++) {
 
 				if (i > 0)
 					ofs.y += vseparation;
 				Point2 item_ofs = ofs;
-				float h;
 				Size2 icon_size;
-
-				Color icon_color(1, 1, 1, items[i].disabled ? 0.5 : 1);
+				float h;
 
 				if (!items[i].icon.is_null()) {
 
@@ -489,16 +505,15 @@ void PopupMenu::_notification(int p_what) {
 					}
 				}
 
+				Color icon_color(1, 1, 1, items[i].disabled ? 0.5 : 1);
+
 				if (items[i].checkable_type) {
 					Texture *icon = (items[i].checked ? check[items[i].checkable_type - 1] : uncheck[items[i].checkable_type - 1]).ptr();
 					icon->draw(ci, item_ofs + Point2(0, Math::floor((h - icon->get_height()) / 2.0)), icon_color);
-					item_ofs.x += icon->get_width() + hseparation;
 				}
 
 				if (!items[i].icon.is_null()) {
-					items[i].icon->draw(ci, item_ofs + Point2(0, Math::floor((h - icon_size.height) / 2.0)), icon_color);
-					item_ofs.x += items[i].icon->get_width();
-					item_ofs.x += hseparation;
+					items[i].icon->draw(ci, item_ofs + Size2(check_ofs, 0) + Point2(0, Math::floor((h - icon_size.height) / 2.0)), icon_color);
 				}
 
 				if (items[i].submenu != "") {
@@ -514,6 +529,7 @@ void PopupMenu::_notification(int p_what) {
 					}
 				} else {
 
+					item_ofs.x += icon_ofs + check_ofs;
 					font->draw(ci, item_ofs + Point2(0, Math::floor((h - font_h) / 2.0)), text, items[i].disabled ? font_color_disabled : (i == mouse_over ? font_color_hover : font_color));
 				}
 
@@ -528,7 +544,6 @@ void PopupMenu::_notification(int p_what) {
 
 				ofs.y += h;
 			}
-
 		} break;
 		case MainLoop::NOTIFICATION_WM_FOCUS_OUT: {
 
@@ -576,93 +591,93 @@ void PopupMenu::_notification(int p_what) {
 	}
 }
 
-void PopupMenu::add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_id, uint32_t p_accel) {
 
 	Item item;
 	item.icon = p_icon;
 	item.text = p_label;
 	item.xl_text = tr(p_label);
 	item.accel = p_accel;
-	item.ID = p_ID;
+	item.id = p_id;
 	items.push_back(item);
 	update();
 	minimum_size_changed();
 }
-void PopupMenu::add_item(const String &p_label, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_item(const String &p_label, int p_id, uint32_t p_accel) {
 
 	Item item;
 	item.text = p_label;
 	item.xl_text = tr(p_label);
 	item.accel = p_accel;
-	item.ID = p_ID;
+	item.id = p_id == -1 ? items.size() : p_id;
 	items.push_back(item);
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_submenu_item(const String &p_label, const String &p_submenu, int p_ID) {
+void PopupMenu::add_submenu_item(const String &p_label, const String &p_submenu, int p_id) {
 
 	Item item;
 	item.text = p_label;
 	item.xl_text = tr(p_label);
-	item.ID = p_ID;
+	item.id = p_id;
 	item.submenu = p_submenu;
 	items.push_back(item);
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_icon_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_icon_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_id, uint32_t p_accel) {
 
 	Item item;
 	item.icon = p_icon;
 	item.text = p_label;
 	item.xl_text = tr(p_label);
 	item.accel = p_accel;
-	item.ID = p_ID;
+	item.id = p_id;
 	item.checkable_type = Item::CHECKABLE_TYPE_CHECK_BOX;
 	items.push_back(item);
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_check_item(const String &p_label, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_check_item(const String &p_label, int p_id, uint32_t p_accel) {
 
 	Item item;
 	item.text = p_label;
 	item.xl_text = tr(p_label);
 	item.accel = p_accel;
-	item.ID = p_ID;
+	item.id = p_id == -1 ? items.size() : p_id;
 	item.checkable_type = Item::CHECKABLE_TYPE_CHECK_BOX;
 	items.push_back(item);
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_radio_check_item(const String &p_label, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_radio_check_item(const String &p_label, int p_id, uint32_t p_accel) {
 
-	add_check_item(p_label, p_ID, p_accel);
+	add_check_item(p_label, p_id, p_accel);
 	items.write[items.size() - 1].checkable_type = Item::CHECKABLE_TYPE_RADIO_BUTTON;
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_icon_radio_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_icon_radio_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_id, uint32_t p_accel) {
 
-	add_icon_check_item(p_icon, p_label, p_ID, p_accel);
+	add_icon_check_item(p_icon, p_label, p_id, p_accel);
 	items.write[items.size() - 1].checkable_type = Item::CHECKABLE_TYPE_RADIO_BUTTON;
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_icon_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_ID, bool p_global) {
+void PopupMenu::add_icon_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_id, bool p_global) {
 
 	ERR_FAIL_COND(p_shortcut.is_null());
 
 	_ref_shortcut(p_shortcut);
 
 	Item item;
-	item.ID = p_ID;
+	item.id = p_id;
 	item.icon = p_icon;
 	item.shortcut = p_shortcut;
 	item.shortcut_is_global = p_global;
@@ -671,14 +686,14 @@ void PopupMenu::add_icon_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut
 	minimum_size_changed();
 }
 
-void PopupMenu::add_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID, bool p_global) {
+void PopupMenu::add_shortcut(const Ref<ShortCut> &p_shortcut, int p_id, bool p_global) {
 
 	ERR_FAIL_COND(p_shortcut.is_null());
 
 	_ref_shortcut(p_shortcut);
 
 	Item item;
-	item.ID = p_ID;
+	item.id = p_id;
 	item.shortcut = p_shortcut;
 	item.shortcut_is_global = p_global;
 	items.push_back(item);
@@ -686,14 +701,14 @@ void PopupMenu::add_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID, bool p_g
 	minimum_size_changed();
 }
 
-void PopupMenu::add_icon_check_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_ID, bool p_global) {
+void PopupMenu::add_icon_check_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_id, bool p_global) {
 
 	ERR_FAIL_COND(p_shortcut.is_null());
 
 	_ref_shortcut(p_shortcut);
 
 	Item item;
-	item.ID = p_ID;
+	item.id = p_id;
 	item.shortcut = p_shortcut;
 	item.checkable_type = Item::CHECKABLE_TYPE_CHECK_BOX;
 	item.icon = p_icon;
@@ -703,14 +718,14 @@ void PopupMenu::add_icon_check_shortcut(const Ref<Texture> &p_icon, const Ref<Sh
 	minimum_size_changed();
 }
 
-void PopupMenu::add_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID, bool p_global) {
+void PopupMenu::add_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_id, bool p_global) {
 
 	ERR_FAIL_COND(p_shortcut.is_null());
 
 	_ref_shortcut(p_shortcut);
 
 	Item item;
-	item.ID = p_ID;
+	item.id = p_id;
 	item.shortcut = p_shortcut;
 	item.shortcut_is_global = p_global;
 	item.checkable_type = Item::CHECKABLE_TYPE_CHECK_BOX;
@@ -719,21 +734,21 @@ void PopupMenu::add_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID, bo
 	minimum_size_changed();
 }
 
-void PopupMenu::add_radio_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID, bool p_global) {
+void PopupMenu::add_radio_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_id, bool p_global) {
 
-	add_check_shortcut(p_shortcut, p_ID, p_global);
+	add_check_shortcut(p_shortcut, p_id, p_global);
 	items.write[items.size() - 1].checkable_type = Item::CHECKABLE_TYPE_RADIO_BUTTON;
 	update();
 	minimum_size_changed();
 }
 
-void PopupMenu::add_multistate_item(const String &p_label, int p_max_states, int p_default_state, int p_ID, uint32_t p_accel) {
+void PopupMenu::add_multistate_item(const String &p_label, int p_max_states, int p_default_state, int p_id, uint32_t p_accel) {
 
 	Item item;
 	item.text = p_label;
 	item.xl_text = tr(p_label);
 	item.accel = p_accel;
-	item.ID = p_ID;
+	item.id = p_id;
 	item.max_states = p_max_states;
 	item.state = p_default_state;
 	items.push_back(item);
@@ -767,10 +782,10 @@ void PopupMenu::set_item_checked(int p_idx, bool p_checked) {
 	update();
 	minimum_size_changed();
 }
-void PopupMenu::set_item_id(int p_idx, int p_ID) {
+void PopupMenu::set_item_id(int p_idx, int p_id) {
 
 	ERR_FAIL_INDEX(p_idx, items.size());
-	items.write[p_idx].ID = p_ID;
+	items.write[p_idx].id = p_id;
 
 	update();
 	minimum_size_changed();
@@ -866,14 +881,14 @@ bool PopupMenu::is_item_checked(int p_idx) const {
 int PopupMenu::get_item_id(int p_idx) const {
 
 	ERR_FAIL_INDEX_V(p_idx, items.size(), 0);
-	return items[p_idx].ID;
+	return items[p_idx].id;
 }
 
-int PopupMenu::get_item_index(int p_ID) const {
+int PopupMenu::get_item_index(int p_id) const {
 
 	for (int i = 0; i < items.size(); i++) {
 
-		if (items[i].ID == p_ID)
+		if (items[i].id == p_id)
 			return i;
 	}
 
@@ -1062,7 +1077,7 @@ void PopupMenu::activate_item(int p_item) {
 
 	ERR_FAIL_INDEX(p_item, items.size());
 	ERR_FAIL_COND(items[p_item].separator);
-	int id = items[p_item].ID >= 0 ? items[p_item].ID : p_item;
+	int id = items[p_item].id >= 0 ? items[p_item].id : p_item;
 
 	//hide all parent PopupMenus
 	Node *next = get_parent();
@@ -1124,7 +1139,7 @@ void PopupMenu::add_separator(const String &p_text) {
 
 	Item sep;
 	sep.separator = true;
-	sep.ID = -1;
+	sep.id = -1;
 	if (p_text != String()) {
 		sep.text = p_text;
 		sep.xl_text = tr(p_text);
@@ -1400,8 +1415,8 @@ void PopupMenu::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "hide_on_state_item_selection"), "set_hide_on_state_item_selection", "is_hide_on_state_item_selection");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "submenu_popup_delay"), "set_submenu_popup_delay", "get_submenu_popup_delay");
 
-	ADD_SIGNAL(MethodInfo("id_pressed", PropertyInfo(Variant::INT, "ID")));
-	ADD_SIGNAL(MethodInfo("id_focused", PropertyInfo(Variant::INT, "ID")));
+	ADD_SIGNAL(MethodInfo("id_pressed", PropertyInfo(Variant::INT, "id")));
+	ADD_SIGNAL(MethodInfo("id_focused", PropertyInfo(Variant::INT, "id")));
 	ADD_SIGNAL(MethodInfo("index_pressed", PropertyInfo(Variant::INT, "index")));
 }
 
diff --git a/scene/gui/popup_menu.h b/scene/gui/popup_menu.h
index 767ff568fe..687006d58d 100644
--- a/scene/gui/popup_menu.h
+++ b/scene/gui/popup_menu.h
@@ -55,7 +55,7 @@ class PopupMenu : public Popup {
 		int state;
 		bool separator;
 		bool disabled;
-		int ID;
+		int id;
 		Variant metadata;
 		String submenu;
 		String tooltip;
@@ -120,26 +120,26 @@ protected:
 	static void _bind_methods();
 
 public:
-	void add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID = -1, uint32_t p_accel = 0);
-	void add_item(const String &p_label, int p_ID = -1, uint32_t p_accel = 0);
-	void add_icon_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID = -1, uint32_t p_accel = 0);
-	void add_check_item(const String &p_label, int p_ID = -1, uint32_t p_accel = 0);
-	void add_radio_check_item(const String &p_label, int p_ID = -1, uint32_t p_accel = 0);
-	void add_icon_radio_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_ID = -1, uint32_t p_accel = 0);
-	void add_submenu_item(const String &p_label, const String &p_submenu, int p_ID = -1);
-
-	void add_icon_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_ID = -1, bool p_global = false);
-	void add_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID = -1, bool p_global = false);
-	void add_icon_check_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_ID = -1, bool p_global = false);
-	void add_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID = -1, bool p_global = false);
-	void add_radio_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_ID = -1, bool p_global = false);
-
-	void add_multistate_item(const String &p_label, int p_max_states, int p_default_state, int p_ID = -1, uint32_t p_accel = 0);
+	void add_icon_item(const Ref<Texture> &p_icon, const String &p_label, int p_id = -1, uint32_t p_accel = 0);
+	void add_item(const String &p_label, int p_id = -1, uint32_t p_accel = 0);
+	void add_icon_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_id = -1, uint32_t p_accel = 0);
+	void add_check_item(const String &p_label, int p_id = -1, uint32_t p_accel = 0);
+	void add_radio_check_item(const String &p_label, int p_id = -1, uint32_t p_accel = 0);
+	void add_icon_radio_check_item(const Ref<Texture> &p_icon, const String &p_label, int p_id = -1, uint32_t p_accel = 0);
+	void add_submenu_item(const String &p_label, const String &p_submenu, int p_id = -1);
+
+	void add_icon_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_id = -1, bool p_global = false);
+	void add_shortcut(const Ref<ShortCut> &p_shortcut, int p_id = -1, bool p_global = false);
+	void add_icon_check_shortcut(const Ref<Texture> &p_icon, const Ref<ShortCut> &p_shortcut, int p_id = -1, bool p_global = false);
+	void add_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_id = -1, bool p_global = false);
+	void add_radio_check_shortcut(const Ref<ShortCut> &p_shortcut, int p_id = -1, bool p_global = false);
+
+	void add_multistate_item(const String &p_label, int p_max_states, int p_default_state, int p_id = -1, uint32_t p_accel = 0);
 
 	void set_item_text(int p_idx, const String &p_text);
 	void set_item_icon(int p_idx, const Ref<Texture> &p_icon);
 	void set_item_checked(int p_idx, bool p_checked);
-	void set_item_id(int p_idx, int p_ID);
+	void set_item_id(int p_idx, int p_id);
 	void set_item_accelerator(int p_idx, uint32_t p_accel);
 	void set_item_metadata(int p_idx, const Variant &p_meta);
 	void set_item_disabled(int p_idx, bool p_disabled);
@@ -161,7 +161,7 @@ public:
 	Ref<Texture> get_item_icon(int p_idx) const;
 	bool is_item_checked(int p_idx) const;
 	int get_item_id(int p_idx) const;
-	int get_item_index(int p_ID) const;
+	int get_item_index(int p_id) const;
 	uint32_t get_item_accelerator(int p_idx) const;
 	Variant get_item_metadata(int p_idx) const;
 	bool is_item_disabled(int p_idx) const;
diff --git a/scene/gui/rich_text_label.cpp b/scene/gui/rich_text_label.cpp
index 8968923b2c..101eb2ac88 100644
--- a/scene/gui/rich_text_label.cpp
+++ b/scene/gui/rich_text_label.cpp
@@ -711,7 +711,8 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
 
 			} break;
 
-			default: {}
+			default: {
+			}
 		}
 
 		Item *itp = it;
@@ -752,6 +753,8 @@ void RichTextLabel::_scroll_changed(double) {
 	else
 		scroll_following = false;
 
+	scroll_updated = true;
+
 	update();
 }
 
@@ -777,7 +780,6 @@ void RichTextLabel::_update_scroll() {
 		main->first_invalid_line = 0; //invalidate ALL
 		_validate_line_caches(main);
 	}
-	scroll_updated = true;
 }
 
 void RichTextLabel::_notification(int p_what) {
@@ -900,13 +902,21 @@ void RichTextLabel::_find_click(ItemFrame *p_frame, const Point2i &p_click, Item
 
 Control::CursorShape RichTextLabel::get_cursor_shape(const Point2 &p_pos) const {
 
-	if (selection.click)
+	if (!underline_meta || selection.click)
 		return CURSOR_ARROW;
 
 	if (main->first_invalid_line < main->lines.size())
 		return CURSOR_ARROW; //invalid
 
-	return get_default_cursor_shape();
+	int line = 0;
+	Item *item = NULL;
+
+	((RichTextLabel *)(this))->_find_click(main, p_pos, &item, &line);
+
+	if (item && ((RichTextLabel *)(this))->_find_meta(item, NULL))
+		return CURSOR_POINTING_HAND;
+
+	return CURSOR_ARROW;
 }
 
 void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
@@ -1136,8 +1146,8 @@ void RichTextLabel::_gui_input(Ref<InputEvent> p_event) {
 				emit_signal("meta_hover_started", meta);
 			}
 		} else if (meta_hovering) {
-			emit_signal("meta_hover_ended", current_meta);
 			meta_hovering = NULL;
+			emit_signal("meta_hover_ended", current_meta);
 			current_meta = false;
 		}
 	}
@@ -1996,7 +2006,7 @@ bool RichTextLabel::search(const String &p_string, bool p_from_selection, bool p
 	Item *it = main;
 	int charidx = 0;
 
-	if (p_from_selection && selection.active && selection.enabled) {
+	if (p_from_selection && selection.active) {
 		it = selection.to;
 		charidx = selection.to_char + 1;
 	}
diff --git a/scene/gui/slider.cpp b/scene/gui/slider.cpp
index eb04b85931..028ca41cbf 100644
--- a/scene/gui/slider.cpp
+++ b/scene/gui/slider.cpp
@@ -34,8 +34,15 @@
 Size2 Slider::get_minimum_size() const {
 
 	Ref<StyleBox> style = get_stylebox("slider");
-	Size2i ms = style->get_minimum_size() + style->get_center_size();
-	return ms;
+	Size2i ss = style->get_minimum_size() + style->get_center_size();
+
+	Ref<Texture> grabber = get_icon("grabber");
+	Size2i rs = grabber->get_size();
+
+	if (orientation == HORIZONTAL)
+		return Size2i(ss.width, MAX(ss.height, rs.height));
+	else
+		return Size2i(MAX(ss.width, rs.width), ss.height);
 }
 
 void Slider::_gui_input(Ref<InputEvent> p_event) {
@@ -134,7 +141,11 @@ void Slider::_gui_input(Ref<InputEvent> p_event) {
 void Slider::_notification(int p_what) {
 
 	switch (p_what) {
+		case NOTIFICATION_THEME_CHANGED: {
 
+			minimum_size_changed();
+			update();
+		} break;
 		case NOTIFICATION_MOUSE_ENTER: {
 
 			mouse_inside = true;
diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp
index 212efa4976..39c76e6646 100644
--- a/scene/gui/tab_container.cpp
+++ b/scene/gui/tab_container.cpp
@@ -86,8 +86,8 @@ void TabContainer::_gui_input(const Ref<InputEvent> &p_event) {
 			emit_signal("pre_popup_pressed");
 
 			Vector2 popup_pos = get_global_position();
-			popup_pos.x += size.width - popup->get_size().width;
-			popup_pos.y += menu->get_height();
+			popup_pos.x += size.width * get_global_transform().get_scale().x - popup->get_size().width * popup->get_global_transform().get_scale().x;
+			popup_pos.y += menu->get_height() * get_global_transform().get_scale().y;
 
 			popup->set_global_position(popup_pos);
 			popup->popup();
@@ -127,6 +127,9 @@ void TabContainer::_gui_input(const Ref<InputEvent> &p_event) {
 		// Activate the clicked tab.
 		pos.x -= tabs_ofs_cache;
 		for (int i = first_tab_cache; i <= last_tab_cache; i++) {
+			if (get_tab_hidden(i)) {
+				continue;
+			}
 			int tab_width = _get_tab_width(i);
 			if (pos.x < tab_width) {
 				if (!get_tab_disabled(i)) {
@@ -143,6 +146,11 @@ void TabContainer::_notification(int p_what) {
 
 	switch (p_what) {
 
+		case NOTIFICATION_TRANSLATION_CHANGED: {
+
+			minimum_size_changed();
+			update();
+		} break;
 		case NOTIFICATION_RESIZED: {
 
 			Vector<Control *> tabs = _get_tabs();
@@ -178,7 +186,6 @@ void TabContainer::_notification(int p_what) {
 				first_tab_cache--;
 			}
 		} break;
-
 		case NOTIFICATION_DRAW: {
 
 			RID canvas = get_canvas_item();
@@ -216,6 +223,9 @@ void TabContainer::_notification(int p_what) {
 			// Check if all tabs would fit into the header area.
 			int all_tabs_width = 0;
 			for (int i = 0; i < tabs.size(); i++) {
+				if (get_tab_hidden(i)) {
+					continue;
+				}
 				int tab_width = _get_tab_width(i);
 				all_tabs_width += tab_width;
 
@@ -241,6 +251,9 @@ void TabContainer::_notification(int p_what) {
 			all_tabs_width = 0;
 			Vector<int> tab_widths;
 			for (int i = first_tab_cache; i < tabs.size(); i++) {
+				if (get_tab_hidden(i)) {
+					continue;
+				}
 				int tab_width = _get_tab_width(i);
 				if (all_tabs_width + tab_width > header_width && tab_widths.size() > 0)
 					break;
@@ -267,6 +280,9 @@ void TabContainer::_notification(int p_what) {
 			// Draw all visible tabs.
 			int x = 0;
 			for (int i = 0; i < tab_widths.size(); i++) {
+				if (get_tab_hidden(i)) {
+					continue;
+				}
 				Ref<StyleBox> tab_style;
 				Color font_color;
 				if (get_tab_disabled(i + first_tab_cache)) {
@@ -338,6 +354,7 @@ void TabContainer::_notification(int p_what) {
 			}
 		} break;
 		case NOTIFICATION_THEME_CHANGED: {
+
 			minimum_size_changed();
 			call_deferred("_on_theme_changed"); //wait until all changed theme
 		} break;
@@ -354,7 +371,7 @@ int TabContainer::_get_tab_width(int p_index) const {
 
 	ERR_FAIL_INDEX_V(p_index, get_tab_count(), 0);
 	Control *control = Object::cast_to<Control>(_get_tabs()[p_index]);
-	if (!control || control->is_set_as_toplevel())
+	if (!control || control->is_set_as_toplevel() || get_tab_hidden(p_index))
 		return 0;
 
 	// Get the width of the text displayed on the tab.
@@ -719,6 +736,7 @@ void TabContainer::set_tab_title(int p_tab, const String &p_title) {
 	Control *child = _get_tab(p_tab);
 	ERR_FAIL_COND(!child);
 	child->set_meta("_tab_name", p_title);
+	update();
 }
 
 String TabContainer::get_tab_title(int p_tab) const {
@@ -736,6 +754,7 @@ void TabContainer::set_tab_icon(int p_tab, const Ref<Texture> &p_icon) {
 	Control *child = _get_tab(p_tab);
 	ERR_FAIL_COND(!child);
 	child->set_meta("_tab_icon", p_icon);
+	update();
 }
 Ref<Texture> TabContainer::get_tab_icon(int p_tab) const {
 
@@ -765,6 +784,36 @@ bool TabContainer::get_tab_disabled(int p_tab) const {
 		return false;
 }
 
+void TabContainer::set_tab_hidden(int p_tab, bool p_hidden) {
+
+	Control *child = _get_tab(p_tab);
+	ERR_FAIL_COND(!child);
+	child->set_meta("_tab_hidden", p_hidden);
+	update();
+	for (int i = 0; i < get_tab_count(); i++) {
+		int try_tab = (p_tab + 1 + i) % get_tab_count();
+		if (get_tab_disabled(try_tab) || get_tab_hidden(try_tab)) {
+			continue;
+		}
+
+		set_current_tab(try_tab);
+		return;
+	}
+
+	//assumed no other tab can be switched to, just hide
+	child->hide();
+}
+
+bool TabContainer::get_tab_hidden(int p_tab) const {
+
+	Control *child = _get_tab(p_tab);
+	ERR_FAIL_COND_V(!child, false);
+	if (child->has_meta("_tab_hidden"))
+		return child->get_meta("_tab_hidden");
+	else
+		return false;
+}
+
 void TabContainer::get_translatable_strings(List<String> *p_strings) const {
 
 	Vector<Control *> tabs = _get_tabs();
diff --git a/scene/gui/tab_container.h b/scene/gui/tab_container.h
index c110f041d0..f7a9fb64fd 100644
--- a/scene/gui/tab_container.h
+++ b/scene/gui/tab_container.h
@@ -96,6 +96,9 @@ public:
 	void set_tab_disabled(int p_tab, bool p_disabled);
 	bool get_tab_disabled(int p_tab) const;
 
+	void set_tab_hidden(int p_tab, bool p_hidden);
+	bool get_tab_hidden(int p_tab) const;
+
 	int get_tab_count() const;
 	void set_current_tab(int p_current);
 	int get_current_tab() const;
diff --git a/scene/gui/tabs.cpp b/scene/gui/tabs.cpp
index ac643c1320..36571cc878 100644
--- a/scene/gui/tabs.cpp
+++ b/scene/gui/tabs.cpp
@@ -222,6 +222,10 @@ void Tabs::_notification(int p_what) {
 
 	switch (p_what) {
 
+		case NOTIFICATION_TRANSLATION_CHANGED: {
+			minimum_size_changed();
+			update();
+		} break;
 		case NOTIFICATION_MOUSE_EXIT: {
 			rb_hover = -1;
 			cb_hover = -1;
@@ -232,7 +236,6 @@ void Tabs::_notification(int p_what) {
 			_update_cache();
 			_ensure_no_over_offset();
 			ensure_tab_visible(current);
-
 		} break;
 		case NOTIFICATION_DRAW: {
 			_update_cache();
@@ -394,7 +397,6 @@ void Tabs::_notification(int p_what) {
 			} else {
 				buttons_visible = false;
 			}
-
 		} break;
 	}
 }
diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index 2bf2364873..10bd9e2a8b 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -350,6 +350,10 @@ void TextEdit::_update_scrollbars() {
 		total_width += cache.breakpoint_gutter_width;
 	}
 
+	if (draw_info_gutter) {
+		total_width += cache.info_gutter_width;
+	}
+
 	if (draw_fold_gutter) {
 		total_width += cache.fold_gutter_width;
 	}
@@ -590,6 +594,12 @@ void TextEdit::_notification(int p_what) {
 			}
 		} break;
 		case NOTIFICATION_DRAW: {
+
+			if (first_draw) {
+				//size may not be the final one, so attempts to ensure cursor was visible may have failed
+				adjust_viewport_to_cursor();
+				first_draw = false;
+			}
 			Size2 size = get_size();
 			if ((!has_focus() && !menu->has_focus()) || !window_has_focus) {
 				draw_caret = false;
@@ -602,6 +612,13 @@ void TextEdit::_notification(int p_what) {
 				cache.breakpoint_gutter_width = 0;
 			}
 
+			if (draw_info_gutter) {
+				info_gutter_width = (get_row_height());
+				cache.info_gutter_width = info_gutter_width;
+			} else {
+				cache.info_gutter_width = 0;
+			}
+
 			if (draw_fold_gutter) {
 				fold_gutter_width = (get_row_height() * 55) / 100;
 				cache.fold_gutter_width = fold_gutter_width;
@@ -631,7 +648,7 @@ void TextEdit::_notification(int p_what) {
 
 			RID ci = get_canvas_item();
 			VisualServer::get_singleton()->canvas_item_set_clip(get_canvas_item(), true);
-			int xmargin_beg = cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width;
+			int xmargin_beg = cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width + cache.info_gutter_width;
 			int xmargin_end = size.width - cache.style_normal->get_margin(MARGIN_RIGHT);
 			//let's do it easy for now:
 			cache.style_normal->draw(ci, Rect2(Point2(), size));
@@ -808,6 +825,9 @@ void TextEdit::_notification(int p_what) {
 			// get the highlighted words
 			String highlighted_text = get_selection_text();
 
+			// check if highlighted words contains only whitespaces (tabs or spaces)
+			bool only_whitespaces_highlighted = highlighted_text.strip_edges() == String();
+
 			String line_num_padding = line_numbers_zero_padded ? "0" : " ";
 
 			int cursor_wrap_index = get_cursor_wrap_index();
@@ -946,10 +966,53 @@ void TextEdit::_notification(int p_what) {
 							}
 						}
 
+						// draw info icons
+						if (draw_info_gutter && text.has_info_icon(line)) {
+							int vertical_gap = (get_row_height() * 40) / 100;
+							int horizontal_gap = (cache.info_gutter_width * 30) / 100;
+							int gutter_left = cache.style_normal->get_margin(MARGIN_LEFT) + cache.breakpoint_gutter_width;
+
+							Ref<Texture> info_icon = text.get_info_icon(line);
+							// ensure the icon fits the gutter size
+							Size2i icon_size = info_icon->get_size();
+							if (icon_size.width > cache.info_gutter_width - horizontal_gap) {
+								icon_size.width = cache.info_gutter_width - horizontal_gap;
+							}
+							if (icon_size.height > get_row_height() - horizontal_gap) {
+								icon_size.height = get_row_height() - horizontal_gap;
+							}
+
+							Size2i icon_pos;
+							int xofs = horizontal_gap - (info_icon->get_width() / 4);
+							int yofs = vertical_gap - (info_icon->get_height() / 4);
+							icon_pos.x = gutter_left + xofs + ofs_x;
+							icon_pos.y = ofs_y + yofs;
+
+							draw_texture_rect(info_icon, Rect2(icon_pos, icon_size));
+						}
+
+						// draw execution marker
+						if (executing_line == line) {
+							if (draw_breakpoint_gutter) {
+								int icon_extra_size = 4;
+								int vertical_gap = (get_row_height() * 40) / 100;
+								int horizontal_gap = (cache.breakpoint_gutter_width * 30) / 100;
+								int marker_height = get_row_height() - (vertical_gap * 2) + icon_extra_size;
+								int marker_width = cache.breakpoint_gutter_width - (horizontal_gap * 2) + icon_extra_size;
+								cache.executing_icon->draw_rect(ci, Rect2(cache.style_normal->get_margin(MARGIN_LEFT) + horizontal_gap - 2 - icon_extra_size / 2, ofs_y + vertical_gap - icon_extra_size / 2, marker_width, marker_height), false, Color(cache.executing_line_color.r, cache.executing_line_color.g, cache.executing_line_color.b));
+							} else {
+#ifdef TOOLS_ENABLED
+								VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(xmargin_beg + ofs_x, ofs_y + get_row_height() - EDSCALE, xmargin_end - xmargin_beg, EDSCALE), cache.executing_line_color);
+#else
+								VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(xmargin_beg + ofs_x, ofs_y, xmargin_end - xmargin_beg, get_row_height()), cache.executing_line_color);
+#endif
+							}
+						}
+
 						// draw fold markers
 						if (draw_fold_gutter) {
 							int horizontal_gap = (cache.fold_gutter_width * 30) / 100;
-							int gutter_left = cache.style_normal->get_margin(MARGIN_LEFT) + cache.breakpoint_gutter_width + cache.line_number_w;
+							int gutter_left = cache.style_normal->get_margin(MARGIN_LEFT) + cache.breakpoint_gutter_width + cache.line_number_w + cache.info_gutter_width;
 							if (is_folded(line)) {
 								int xofs = horizontal_gap - (cache.can_fold_icon->get_width()) / 2;
 								int yofs = (get_row_height() - cache.folded_icon->get_height()) / 2;
@@ -969,7 +1032,7 @@ void TextEdit::_notification(int p_what) {
 								fc = line_num_padding + fc;
 							}
 
-							cache.font->draw(ci, Point2(cache.style_normal->get_margin(MARGIN_LEFT) + cache.breakpoint_gutter_width + ofs_x, yofs + cache.font->get_ascent()), fc, text.is_safe(line) ? cache.safe_line_number_color : cache.line_number_color);
+							cache.font->draw(ci, Point2(cache.style_normal->get_margin(MARGIN_LEFT) + cache.breakpoint_gutter_width + cache.info_gutter_width + ofs_x, yofs + cache.font->get_ascent()), fc, text.is_safe(line) ? cache.safe_line_number_color : cache.line_number_color);
 						}
 					}
 
@@ -1063,7 +1126,7 @@ void TextEdit::_notification(int p_what) {
 								VisualServer::get_singleton()->canvas_item_add_rect(ci, Rect2(Point2i(char_ofs + char_margin + char_w + ofs_x - 1, ofs_y), Size2i(1, get_row_height())), border_color);
 						}
 
-						if (highlight_all_occurrences) {
+						if (highlight_all_occurrences && !only_whitespaces_highlighted) {
 							if (highlighted_text_col != -1) {
 
 								// if we are at the end check for new word on same line
@@ -1497,8 +1560,7 @@ void TextEdit::_consume_pair_symbol(CharType ch) {
 	}
 
 	if ((ch == '\'' || ch == '"') &&
-			cursor_get_column() > 0 &&
-			_is_text_char(text[cursor.line][cursor_get_column() - 1])) {
+			cursor_get_column() > 0 && _is_text_char(text[cursor.line][cursor_get_column() - 1]) && !_is_pair_right_symbol(text[cursor.line][cursor_get_column()])) {
 		insert_text_at_cursor(ch_single);
 		cursor_set_column(cursor_position_to_move);
 		return;
@@ -1560,6 +1622,10 @@ void TextEdit::backspace_at_cursor() {
 		set_line_as_breakpoint(prev_line, true);
 	}
 
+	if (text.has_info_icon(cursor.line)) {
+		set_line_info_icon(prev_line, text.get_info_icon(cursor.line), text.get_info(cursor.line));
+	}
+
 	if (auto_brace_completion_enabled &&
 			cursor.column > 0 &&
 			_is_pair_left_symbol(text[cursor.line][cursor.column - 1])) {
@@ -1712,7 +1778,7 @@ void TextEdit::_get_mouse_pos(const Point2i &p_mouse, int &r_row, int &r_col) co
 		col = text[row].size();
 	} else {
 
-		int colx = p_mouse.x - (cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width);
+		int colx = p_mouse.x - (cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width + cache.info_gutter_width);
 		colx += cursor.x_ofs;
 		col = get_char_pos_for_line(colx, row, wrap_index);
 		if (is_wrap_enabled() && wrap_index < times_line_wraps(row)) {
@@ -1810,18 +1876,28 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 				// toggle breakpoint on gutter click
 				if (draw_breakpoint_gutter) {
 					int gutter = cache.style_normal->get_margin(MARGIN_LEFT);
-					if (mb->get_position().x > gutter && mb->get_position().x <= gutter + cache.breakpoint_gutter_width + 3) {
+					if (mb->get_position().x > gutter - 6 && mb->get_position().x <= gutter + cache.breakpoint_gutter_width - 3) {
 						set_line_as_breakpoint(row, !is_line_set_as_breakpoint(row));
 						emit_signal("breakpoint_toggled", row);
 						return;
 					}
 				}
 
+				// emit info clicked
+				if (draw_info_gutter && text.has_info_icon(row)) {
+					int left_margin = cache.style_normal->get_margin(MARGIN_LEFT);
+					int gutter_left = left_margin + cache.breakpoint_gutter_width;
+					if (mb->get_position().x > gutter_left - 6 && mb->get_position().x <= gutter_left + cache.info_gutter_width - 3) {
+						emit_signal("info_clicked", row, text.get_info(row));
+						return;
+					}
+				}
+
 				// toggle fold on gutter click if can
 				if (draw_fold_gutter) {
 
 					int left_margin = cache.style_normal->get_margin(MARGIN_LEFT);
-					int gutter_left = left_margin + cache.breakpoint_gutter_width + cache.line_number_w;
+					int gutter_left = left_margin + cache.breakpoint_gutter_width + cache.line_number_w + cache.info_gutter_width;
 					if (mb->get_position().x > gutter_left - 6 && mb->get_position().x <= gutter_left + cache.fold_gutter_width - 3) {
 						if (is_folded(row)) {
 							unfold_line(row);
@@ -1835,7 +1911,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 				// unfold on folded icon click
 				if (is_folded(row)) {
 					int line_width = text.get_line_width(row);
-					line_width += cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width - cursor.x_ofs;
+					line_width += cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.info_gutter_width + cache.fold_gutter_width - cursor.x_ofs;
 					if (mb->get_position().x > line_width - 3 && mb->get_position().x <= line_width + cache.folded_eol_icon->get_width() + 3) {
 						unfold_line(row);
 						return;
@@ -1953,6 +2029,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 
 				menu->set_position(get_global_transform().xform(get_local_mouse_position()));
 				menu->set_size(Vector2(1, 1));
+				menu->set_scale(get_global_transform().get_scale());
 				menu->popup();
 				grab_focus();
 			}
@@ -2198,6 +2275,36 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 			k->set_command(true);
 			k->set_shift(false);
 		}
+#ifdef APPLE_STYLE_KEYS
+		if (k->get_control() && !k->get_shift() && !k->get_alt() && !k->get_command()) {
+			uint32_t remap_key = KEY_UNKNOWN;
+			switch (k->get_scancode()) {
+				case KEY_F: {
+					remap_key = KEY_RIGHT;
+				} break;
+				case KEY_B: {
+					remap_key = KEY_LEFT;
+				} break;
+				case KEY_P: {
+					remap_key = KEY_UP;
+				} break;
+				case KEY_N: {
+					remap_key = KEY_DOWN;
+				} break;
+				case KEY_D: {
+					remap_key = KEY_DELETE;
+				} break;
+				case KEY_H: {
+					remap_key = KEY_BACKSPACE;
+				} break;
+			}
+
+			if (remap_key != KEY_UNKNOWN) {
+				k->set_scancode(remap_key);
+				k->set_control(false);
+			}
+		}
+#endif
 
 		_reset_caret_blink_timer();
 
@@ -2517,7 +2624,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_left
+				FALLTHROUGH;
 			}
 			case KEY_LEFT: {
 
@@ -2532,9 +2639,22 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 
 #ifdef APPLE_STYLE_KEYS
 				if (k->get_command()) {
-					cursor_set_column(0);
+					// Start at first column (it's slightly faster that way) and look for the first non-whitespace character.
+					int new_cursor_pos = 0;
+					for (int i = 0; i < text[cursor.line].length(); ++i) {
+						if (!_is_whitespace(text[cursor.line][i])) {
+							new_cursor_pos = i;
+							break;
+						}
+					}
+					if (new_cursor_pos == cursor.column) {
+						// We're already at the first text character, so move to the very beginning of the line.
+						cursor_set_column(0);
+					} else {
+						// We're somewhere to the right of the first text character; move to the first one.
+						cursor_set_column(new_cursor_pos);
+					}
 				} else if (k->get_alt()) {
-
 #else
 				if (k->get_alt()) {
 					scancode_handled = false;
@@ -2580,7 +2700,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_right
+				FALLTHROUGH;
 			}
 			case KEY_RIGHT: {
 
@@ -2641,7 +2761,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_up
+				FALLTHROUGH;
 			}
 			case KEY_UP: {
 
@@ -2694,7 +2814,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_down
+				FALLTHROUGH;
 			}
 			case KEY_DOWN: {
 
@@ -2817,11 +2937,10 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_home
+				FALLTHROUGH;
 			}
-#ifdef APPLE_STYLE_KEYS
 			case KEY_HOME: {
-
+#ifdef APPLE_STYLE_KEYS
 				if (k->get_shift())
 					_pre_shift_selection();
 
@@ -2831,11 +2950,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					_post_shift_selection();
 				else if (k->get_command() || k->get_control())
 					deselect();
-
-			} break;
 #else
-			case KEY_HOME: {
-
 				if (k->get_shift())
 					_pre_shift_selection();
 
@@ -2876,19 +2991,17 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					deselect();
 				_cancel_completion();
 				completion_hint = "";
-
-			} break;
 #endif
+			} break;
 			case KEY_KP_1: {
 				if (k->get_unicode() != 0) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_end
+				FALLTHROUGH;
 			}
-#ifdef APPLE_STYLE_KEYS
 			case KEY_END: {
-
+#ifdef APPLE_STYLE_KEYS
 				if (k->get_shift())
 					_pre_shift_selection();
 
@@ -2898,11 +3011,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					_post_shift_selection();
 				else if (k->get_command() || k->get_control())
 					deselect();
-
-			} break;
 #else
-			case KEY_END: {
-
 				if (k->get_shift())
 					_pre_shift_selection();
 
@@ -2929,15 +3038,14 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 
 				_cancel_completion();
 				completion_hint = "";
-
-			} break;
 #endif
+			} break;
 			case KEY_KP_9: {
 				if (k->get_unicode() != 0) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_pageup
+				FALLTHROUGH;
 			}
 			case KEY_PAGEUP: {
 
@@ -2960,7 +3068,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					scancode_handled = false;
 					break;
 				}
-				// numlock disabled. fallthrough to key_pagedown
+				FALLTHROUGH;
 			}
 			case KEY_PAGEDOWN: {
 
@@ -3139,21 +3247,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 
 		if (scancode_handled)
 			accept_event();
-		/*
-	if (!scancode_handled && !k->get_command() && !k->get_alt()) {
-
-	if (k->get_unicode()>=32) {
 
-		if (readonly)
-		break;
-
-		accept_event();
-	} else {
-
-		break;
-	}
-	}
-*/
 		if (k->get_scancode() == KEY_INSERT) {
 			set_insert_mode(!insert_mode);
 			accept_event();
@@ -3196,7 +3290,6 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					end_complex_operation();
 				}
 				accept_event();
-			} else {
 			}
 		}
 
@@ -3395,8 +3488,11 @@ void TextEdit::_base_insert_text(int p_line, int p_char, const String &p_text, i
 	if (shift_first_line) {
 		text.set_breakpoint(p_line + 1, text.is_breakpoint(p_line));
 		text.set_hidden(p_line + 1, text.is_hidden(p_line));
+		text.set_info_icon(p_line + 1, text.get_info_icon(p_line), text.get_info(p_line));
+
 		text.set_breakpoint(p_line, false);
 		text.set_hidden(p_line, false);
+		text.set_info_icon(p_line, NULL, "");
 	}
 
 	text.set_line_wrap_amount(p_line, -1);
@@ -3649,7 +3745,7 @@ int TextEdit::get_total_visible_rows() const {
 
 void TextEdit::_update_wrap_at() {
 
-	wrap_at = get_size().width - cache.style_normal->get_minimum_size().width - cache.line_number_w - cache.breakpoint_gutter_width - cache.fold_gutter_width - wrap_right_offset;
+	wrap_at = get_size().width - cache.style_normal->get_minimum_size().width - cache.line_number_w - cache.breakpoint_gutter_width - cache.fold_gutter_width - cache.info_gutter_width - wrap_right_offset;
 	update_cursor_wrap_offset();
 	text.clear_wrap_cache();
 
@@ -3683,7 +3779,7 @@ void TextEdit::adjust_viewport_to_cursor() {
 		set_line_as_last_visible(cur_line, cur_wrap);
 	}
 
-	int visible_width = get_size().width - cache.style_normal->get_minimum_size().width - cache.line_number_w - cache.breakpoint_gutter_width - cache.fold_gutter_width;
+	int visible_width = get_size().width - cache.style_normal->get_minimum_size().width - cache.line_number_w - cache.breakpoint_gutter_width - cache.fold_gutter_width - cache.info_gutter_width;
 	if (v_scroll->is_visible_in_tree())
 		visible_width -= v_scroll->get_combined_minimum_size().width;
 	visible_width -= 20; // give it a little more space
@@ -3714,7 +3810,7 @@ void TextEdit::center_viewport_to_cursor() {
 		unfold_line(cursor.line);
 
 	set_line_as_center_visible(cursor.line, get_cursor_wrap_index());
-	int visible_width = get_size().width - cache.style_normal->get_minimum_size().width - cache.line_number_w - cache.breakpoint_gutter_width - cache.fold_gutter_width;
+	int visible_width = get_size().width - cache.style_normal->get_minimum_size().width - cache.line_number_w - cache.breakpoint_gutter_width - cache.fold_gutter_width - cache.info_gutter_width;
 	if (v_scroll->is_visible_in_tree())
 		visible_width -= v_scroll->get_combined_minimum_size().width;
 	visible_width -= 20; // give it a little more space
@@ -4153,7 +4249,7 @@ Control::CursorShape TextEdit::get_cursor_shape(const Point2 &p_pos) const {
 	if (highlighted_word != String())
 		return CURSOR_POINTING_HAND;
 
-	int gutter = cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width;
+	int gutter = cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width + cache.info_gutter_width;
 	if ((completion_active && completion_rect.has_point(p_pos))) {
 		return CURSOR_ARROW;
 	}
@@ -4164,18 +4260,27 @@ Control::CursorShape TextEdit::get_cursor_shape(const Point2 &p_pos) const {
 		int left_margin = cache.style_normal->get_margin(MARGIN_LEFT);
 
 		// breakpoint icon
-		if (draw_breakpoint_gutter && p_pos.x > left_margin && p_pos.x <= left_margin + cache.breakpoint_gutter_width + 3) {
+		if (draw_breakpoint_gutter && p_pos.x > left_margin - 6 && p_pos.x <= left_margin + cache.breakpoint_gutter_width - 3) {
 			return CURSOR_POINTING_HAND;
 		}
 
+		// info icons
+		int gutter_left = left_margin + cache.breakpoint_gutter_width + cache.info_gutter_width;
+		if (draw_info_gutter && p_pos.x > left_margin + cache.breakpoint_gutter_width - 6 && p_pos.x <= gutter_left - 3) {
+			if (text.has_info_icon(row)) {
+				return CURSOR_POINTING_HAND;
+			}
+			return CURSOR_ARROW;
+		}
+
 		// fold icon
-		int gutter_left = left_margin + cache.breakpoint_gutter_width + cache.line_number_w;
-		if (draw_fold_gutter && p_pos.x > gutter_left - 6 && p_pos.x <= gutter_left + cache.fold_gutter_width - 3) {
+		if (draw_fold_gutter && p_pos.x > gutter_left + cache.line_number_w - 6 && p_pos.x <= gutter_left + cache.line_number_w + cache.fold_gutter_width - 3) {
 			if (is_folded(row) || can_fold(row))
 				return CURSOR_POINTING_HAND;
 			else
 				return CURSOR_ARROW;
 		}
+
 		return CURSOR_ARROW;
 	} else {
 		int row, col;
@@ -4183,7 +4288,7 @@ Control::CursorShape TextEdit::get_cursor_shape(const Point2 &p_pos) const {
 		// eol fold icon
 		if (is_folded(row)) {
 			int line_width = text.get_line_width(row);
-			line_width += cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width - cursor.x_ofs;
+			line_width += cache.style_normal->get_margin(MARGIN_LEFT) + cache.line_number_w + cache.breakpoint_gutter_width + cache.fold_gutter_width + cache.info_gutter_width - cursor.x_ofs;
 			if (p_pos.x > line_width - 3 && p_pos.x <= line_width + cache.folded_eol_icon->get_width() + 3) {
 				return CURSOR_POINTING_HAND;
 			}
@@ -4303,7 +4408,27 @@ void TextEdit::clear() {
 
 void TextEdit::set_readonly(bool p_readonly) {
 
+	if (readonly == p_readonly)
+		return;
+
 	readonly = p_readonly;
+
+	// Reorganize context menu.
+	menu->clear();
+	if (!readonly)
+		menu->add_item(RTR("Cut"), MENU_CUT, KEY_MASK_CMD | KEY_X);
+	menu->add_item(RTR("Copy"), MENU_COPY, KEY_MASK_CMD | KEY_C);
+	if (!readonly)
+		menu->add_item(RTR("Paste"), MENU_PASTE, KEY_MASK_CMD | KEY_V);
+	menu->add_separator();
+	menu->add_item(RTR("Select All"), MENU_SELECT_ALL, KEY_MASK_CMD | KEY_A);
+	if (!readonly) {
+		menu->add_item(RTR("Clear"), MENU_CLEAR);
+		menu->add_separator();
+		menu->add_item(RTR("Undo"), MENU_UNDO, KEY_MASK_CMD | KEY_Z);
+		menu->add_item(RTR("Redo"), MENU_REDO, KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_Z);
+	}
+
 	update();
 }
 
@@ -4373,6 +4498,7 @@ void TextEdit::_update_caches() {
 	cache.current_line_color = get_color("current_line_color");
 	cache.line_length_guideline_color = get_color("line_length_guideline_color");
 	cache.breakpoint_color = get_color("breakpoint_color");
+	cache.executing_line_color = get_color("executing_line_color");
 	cache.code_folding_color = get_color("code_folding_color");
 	cache.brace_mismatch_color = get_color("brace_mismatch_color");
 	cache.word_highlighted_color = get_color("word_highlighted_color");
@@ -4387,9 +4513,10 @@ void TextEdit::_update_caches() {
 #endif
 	cache.row_height = cache.font->get_height() + cache.line_spacing;
 	cache.tab_icon = get_icon("tab");
-	cache.folded_icon = get_icon("GuiTreeArrowRight", "EditorIcons");
-	cache.can_fold_icon = get_icon("GuiTreeArrowDown", "EditorIcons");
+	cache.folded_icon = get_icon("folded");
+	cache.can_fold_icon = get_icon("fold");
 	cache.folded_eol_icon = get_icon("GuiEllipsis", "EditorIcons");
+	cache.executing_icon = get_icon("MainPlay", "EditorIcons");
 	text.set_font(cache.font);
 
 	if (syntax_highlighter) {
@@ -4955,6 +5082,17 @@ bool TextEdit::is_line_set_as_safe(int p_line) const {
 	return text.is_safe(p_line);
 }
 
+void TextEdit::set_executing_line(int p_line) {
+	ERR_FAIL_INDEX(p_line, text.size());
+	executing_line = p_line;
+	update();
+}
+
+void TextEdit::clear_executing_line() {
+	executing_line = -1;
+	update();
+}
+
 bool TextEdit::is_line_set_as_breakpoint(int p_line) const {
 
 	ERR_FAIL_INDEX_V(p_line, text.size(), false);
@@ -4994,6 +5132,19 @@ void TextEdit::remove_breakpoints() {
 	}
 }
 
+void TextEdit::set_line_info_icon(int p_line, Ref<Texture> p_icon, String p_info) {
+	ERR_FAIL_INDEX(p_line, text.size());
+	text.set_info_icon(p_line, p_icon, p_info);
+	update();
+}
+
+void TextEdit::clear_info_icons() {
+	for (int i = 0; i < text.size(); i++) {
+		text.set_info_icon(i, NULL, "");
+	}
+	update();
+}
+
 void TextEdit::set_line_as_hidden(int p_line, bool p_hidden) {
 
 	ERR_FAIL_INDEX(p_line, text.size());
@@ -5210,6 +5361,17 @@ bool TextEdit::is_folded(int p_line) const {
 	return false;
 }
 
+Vector<int> TextEdit::get_folded_lines() const {
+	Vector<int> folded_lines;
+
+	for (int i = 0; i < text.size(); i++) {
+		if (is_folded(i)) {
+			folded_lines.push_back(i);
+		}
+	}
+	return folded_lines;
+}
+
 void TextEdit::fold_line(int p_line) {
 
 	ERR_FAIL_INDEX(p_line, text.size());
@@ -5350,6 +5512,9 @@ void TextEdit::undo() {
 
 	TextOperation op = undo_stack_pos->get();
 	_do_text_op(op, true);
+	if (op.from_line != op.to_line || op.to_column != op.from_column + 1)
+		select(op.from_line, op.from_column, op.to_line, op.to_column);
+
 	current_op.version = op.prev_version;
 	if (undo_stack_pos->get().chain_backward) {
 		while (true) {
@@ -5476,6 +5641,7 @@ int TextEdit::get_indent_size() {
 void TextEdit::set_draw_tabs(bool p_draw) {
 
 	draw_tabs = p_draw;
+	update();
 }
 
 bool TextEdit::is_drawing_tabs() const {
@@ -5662,19 +5828,29 @@ void TextEdit::_confirm_completion() {
 	cursor_set_column(cursor.column - completion_base.length(), false);
 	insert_text_at_cursor(completion_current);
 
-	// When inserted into the middle of an existing string, don't add an unnecessary quote
+	// When inserted into the middle of an existing string/method, don't add an unnecessary quote/bracket.
 	String line = text[cursor.line];
 	CharType next_char = line[cursor.column];
 	CharType last_completion_char = completion_current[completion_current.length() - 1];
 
-	if ((last_completion_char == '"' || last_completion_char == '\'') &&
-			last_completion_char == next_char) {
+	if ((last_completion_char == '"' || last_completion_char == '\'') && last_completion_char == next_char) {
 		_base_remove_text(cursor.line, cursor.column, cursor.line, cursor.column + 1);
 	}
 
-	if (last_completion_char == '(' && auto_brace_completion_enabled) {
-		insert_text_at_cursor(")");
-		cursor.column--;
+	if (last_completion_char == '(') {
+
+		if (next_char == last_completion_char) {
+			_base_remove_text(cursor.line, cursor.column - 1, cursor.line, cursor.column);
+		} else if (auto_brace_completion_enabled) {
+			insert_text_at_cursor(")");
+			cursor.column--;
+		}
+	} else if (last_completion_char == ')' && next_char == '(') {
+
+		_base_remove_text(cursor.line, cursor.column - 2, cursor.line, cursor.column);
+		if (line[cursor.column + 1] != ')') {
+			cursor.column--;
+		}
 	}
 
 	end_complex_operation();
@@ -5718,6 +5894,7 @@ void TextEdit::_update_completion_candidates() {
 
 	bool inquote = false;
 	int first_quote = -1;
+	int restore_quotes = -1;
 
 	int c = cofs - 1;
 	while (c >= 0) {
@@ -5725,6 +5902,11 @@ void TextEdit::_update_completion_candidates() {
 			inquote = !inquote;
 			if (first_quote == -1)
 				first_quote = c;
+			restore_quotes = 0;
+		} else if (restore_quotes == 0 && l[c] == '$') {
+			restore_quotes = 1;
+		} else if (restore_quotes == 0 && !_is_whitespace(l[c])) {
+			restore_quotes = -1;
 		}
 		c--;
 	}
@@ -5792,6 +5974,11 @@ void TextEdit::_update_completion_candidates() {
 			completion_strings.write[i] = completion_strings[i].unquote().quote("'");
 		}
 
+		if (inquote && restore_quotes == 1 && !completion_strings[i].is_quoted()) {
+			String quote = single_quote ? "'" : "\"";
+			completion_strings.write[i] = completion_strings[i].quote(quote);
+		}
+
 		if (completion_strings[i].begins_with(s)) {
 			completion_options.push_back(completion_strings[i]);
 		} else if (completion_strings[i].to_lower().begins_with(s.to_lower())) {
@@ -5869,7 +6056,6 @@ void TextEdit::code_complete(const Vector<String> &p_strings, bool p_forced) {
 	completion_current = "";
 	completion_index = 0;
 	_update_completion_candidates();
-	//
 }
 
 String TextEdit::get_word_at_pos(const Vector2 &p_pos) const {
@@ -6020,6 +6206,24 @@ int TextEdit::get_fold_gutter_width() const {
 	return cache.fold_gutter_width;
 }
 
+void TextEdit::set_draw_info_gutter(bool p_draw) {
+	draw_info_gutter = p_draw;
+	update();
+}
+
+bool TextEdit::is_drawing_info_gutter() const {
+	return draw_info_gutter;
+}
+
+void TextEdit::set_info_gutter_width(int p_gutter_width) {
+	info_gutter_width = p_gutter_width;
+	update();
+}
+
+int TextEdit::get_info_gutter_width() const {
+	return info_gutter_width;
+}
+
 void TextEdit::set_hiding_enabled(int p_enabled) {
 	if (!p_enabled)
 		unhide_all_lines();
@@ -6176,8 +6380,12 @@ void TextEdit::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_show_line_numbers", "enable"), &TextEdit::set_show_line_numbers);
 	ClassDB::bind_method(D_METHOD("is_show_line_numbers_enabled"), &TextEdit::is_show_line_numbers_enabled);
+	ClassDB::bind_method(D_METHOD("set_draw_tabs"), &TextEdit::set_draw_tabs);
+	ClassDB::bind_method(D_METHOD("is_drawing_tabs"), &TextEdit::is_drawing_tabs);
 	ClassDB::bind_method(D_METHOD("set_breakpoint_gutter_enabled", "enable"), &TextEdit::set_breakpoint_gutter_enabled);
 	ClassDB::bind_method(D_METHOD("is_breakpoint_gutter_enabled"), &TextEdit::is_breakpoint_gutter_enabled);
+	ClassDB::bind_method(D_METHOD("set_draw_fold_gutter"), &TextEdit::set_draw_fold_gutter);
+	ClassDB::bind_method(D_METHOD("is_drawing_fold_gutter"), &TextEdit::is_drawing_fold_gutter);
 
 	ClassDB::bind_method(D_METHOD("set_hiding_enabled", "enable"), &TextEdit::set_hiding_enabled);
 	ClassDB::bind_method(D_METHOD("is_hiding_enabled"), &TextEdit::is_hiding_enabled);
@@ -6224,7 +6432,9 @@ void TextEdit::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "highlight_current_line"), "set_highlight_current_line", "is_highlight_current_line_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "syntax_highlighting"), "set_syntax_coloring", "is_syntax_coloring_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "show_line_numbers"), "set_show_line_numbers", "is_show_line_numbers_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_tabs"), "set_draw_tabs", "is_drawing_tabs");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "breakpoint_gutter"), "set_breakpoint_gutter_enabled", "is_breakpoint_gutter_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fold_gutter"), "set_draw_fold_gutter", "is_drawing_fold_gutter");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "highlight_all_occurrences"), "set_highlight_all_occurrences", "is_highlight_all_occurrences_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "override_selected_font_color"), "set_override_selected_font_color", "is_overriding_selected_font_color");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "context_menu_enabled"), "set_context_menu_enabled", "is_context_menu_enabled");
@@ -6245,6 +6455,7 @@ void TextEdit::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("request_completion"));
 	ADD_SIGNAL(MethodInfo("breakpoint_toggled", PropertyInfo(Variant::INT, "row")));
 	ADD_SIGNAL(MethodInfo("symbol_lookup", PropertyInfo(Variant::STRING, "symbol"), PropertyInfo(Variant::INT, "row"), PropertyInfo(Variant::INT, "column")));
+	ADD_SIGNAL(MethodInfo("info_clicked", PropertyInfo(Variant::INT, "row"), PropertyInfo(Variant::STRING, "info")));
 
 	BIND_ENUM_CONSTANT(MENU_CUT);
 	BIND_ENUM_CONSTANT(MENU_COPY);
@@ -6261,7 +6472,6 @@ void TextEdit::_bind_methods() {
 
 TextEdit::TextEdit() {
 
-	readonly = false;
 	setting_row = false;
 	draw_tabs = false;
 	override_selected_font_color = false;
@@ -6280,6 +6490,8 @@ TextEdit::TextEdit() {
 	breakpoint_gutter_width = 0;
 	cache.fold_gutter_width = 0;
 	fold_gutter_width = 0;
+	info_gutter_width = 0;
+	cache.info_gutter_width = 0;
 	set_default_cursor_shape(CURSOR_IBEAM);
 
 	indent_size = 4;
@@ -6352,6 +6564,7 @@ TextEdit::TextEdit() {
 	line_length_guideline_col = 80;
 	draw_breakpoint_gutter = false;
 	draw_fold_gutter = false;
+	draw_info_gutter = false;
 	hiding_enabled = false;
 	next_operation_is_complex = false;
 	scroll_past_end_of_file_enabled = false;
@@ -6373,16 +6586,11 @@ TextEdit::TextEdit() {
 	context_menu_enabled = true;
 	menu = memnew(PopupMenu);
 	add_child(menu);
-	menu->add_item(RTR("Cut"), MENU_CUT, KEY_MASK_CMD | KEY_X);
-	menu->add_item(RTR("Copy"), MENU_COPY, KEY_MASK_CMD | KEY_C);
-	menu->add_item(RTR("Paste"), MENU_PASTE, KEY_MASK_CMD | KEY_V);
-	menu->add_separator();
-	menu->add_item(RTR("Select All"), MENU_SELECT_ALL, KEY_MASK_CMD | KEY_A);
-	menu->add_item(RTR("Clear"), MENU_CLEAR);
-	menu->add_separator();
-	menu->add_item(RTR("Undo"), MENU_UNDO, KEY_MASK_CMD | KEY_Z);
-	menu->add_item(RTR("Redo"), MENU_REDO, KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_Z);
+	set_readonly(false);
 	menu->connect("id_pressed", this, "menu_option");
+	first_draw = true;
+
+	executing_line = -1;
 }
 
 TextEdit::~TextEdit() {
diff --git a/scene/gui/text_edit.h b/scene/gui/text_edit.h
index 95f1fbbee5..4badd85e07 100644
--- a/scene/gui/text_edit.h
+++ b/scene/gui/text_edit.h
@@ -79,6 +79,8 @@ public:
 			bool safe : 1;
 			int wrap_amount_cache : 24;
 			Map<int, ColorRegionInfo> region_info;
+			Ref<Texture> info_icon;
+			String info;
 			String data;
 		};
 
@@ -109,6 +111,13 @@ public:
 		bool is_hidden(int p_line) const { return text[p_line].hidden; }
 		void set_safe(int p_line, bool p_safe) { text.write[p_line].safe = p_safe; }
 		bool is_safe(int p_line) const { return text[p_line].safe; }
+		void set_info_icon(int p_line, Ref<Texture> p_icon, String p_info) {
+			text.write[p_line].info_icon = p_icon;
+			text.write[p_line].info = p_info;
+		}
+		bool has_info_icon(int p_line) const { return text[p_line].info_icon.is_valid(); }
+		const Ref<Texture> &get_info_icon(int p_line) const { return text[p_line].info_icon; }
+		const String &get_info(int p_line) const { return text[p_line].info; }
 		void insert(int p_at, const String &p_text);
 		void remove(int p_at);
 		int size() const { return text.size(); }
@@ -157,6 +166,7 @@ private:
 		Ref<Texture> can_fold_icon;
 		Ref<Texture> folded_icon;
 		Ref<Texture> folded_eol_icon;
+		Ref<Texture> executing_icon;
 		Ref<StyleBox> style_normal;
 		Ref<StyleBox> style_focus;
 		Ref<StyleBox> style_readonly;
@@ -178,6 +188,7 @@ private:
 		Color selection_color;
 		Color mark_color;
 		Color breakpoint_color;
+		Color executing_line_color;
 		Color code_folding_color;
 		Color current_line_color;
 		Color line_length_guideline_color;
@@ -193,6 +204,7 @@ private:
 		int line_number_w;
 		int breakpoint_gutter_width;
 		int fold_gutter_width;
+		int info_gutter_width;
 	} cache;
 
 	Map<int, int> color_region_cache;
@@ -275,6 +287,7 @@ private:
 	int wrap_at;
 	int wrap_right_offset;
 
+	bool first_draw;
 	bool setting_row;
 	bool draw_tabs;
 	bool override_selected_font_color;
@@ -290,6 +303,8 @@ private:
 	bool draw_fold_gutter;
 	int fold_gutter_width;
 	bool hiding_enabled;
+	bool draw_info_gutter;
+	int info_gutter_width;
 
 	bool highlight_all_occurrences;
 	bool scroll_past_end_of_file_enabled;
@@ -332,6 +347,8 @@ private:
 
 	bool context_menu_enabled;
 
+	int executing_line;
+
 	int get_visible_rows() const;
 	int get_total_visible_rows() const;
 
@@ -473,12 +490,17 @@ public:
 	void set_line_as_marked(int p_line, bool p_marked);
 	void set_line_as_breakpoint(int p_line, bool p_breakpoint);
 	bool is_line_set_as_breakpoint(int p_line) const;
+	void set_executing_line(int p_line);
+	void clear_executing_line();
 	void set_line_as_safe(int p_line, bool p_safe);
 	bool is_line_set_as_safe(int p_line) const;
 	void get_breakpoints(List<int> *p_breakpoints) const;
 	Array get_breakpoints_array() const;
 	void remove_breakpoints();
 
+	void set_line_info_icon(int p_line, Ref<Texture> p_icon, String p_info = "");
+	void clear_info_icons();
+
 	void set_line_as_hidden(int p_line, bool p_hidden);
 	bool is_line_hidden(int p_line) const;
 	void fold_all_lines();
@@ -489,6 +511,7 @@ public:
 
 	bool can_fold(int p_line) const;
 	bool is_folded(int p_line) const;
+	Vector<int> get_folded_lines() const;
 	void fold_line(int p_line);
 	void unfold_line(int p_line);
 	void toggle_fold_line(int p_line);
@@ -649,6 +672,12 @@ public:
 	void set_fold_gutter_width(int p_gutter_width);
 	int get_fold_gutter_width() const;
 
+	void set_draw_info_gutter(bool p_draw);
+	bool is_drawing_info_gutter() const;
+
+	void set_info_gutter_width(int p_gutter_width);
+	int get_info_gutter_width() const;
+
 	void set_hiding_enabled(int p_enabled);
 	int is_hiding_enabled() const;
 
@@ -683,6 +712,7 @@ protected:
 	TextEdit *text_editor;
 
 public:
+	virtual ~SyntaxHighlighter() {}
 	virtual void _update_cache() = 0;
 	virtual Map<int, TextEdit::HighlighterInfo> _get_line_syntax_highlighting(int p_line) = 0;
 
diff --git a/scene/gui/texture_button.cpp b/scene/gui/texture_button.cpp
index 795b25cce0..b5f949aeb7 100644
--- a/scene/gui/texture_button.cpp
+++ b/scene/gui/texture_button.cpp
@@ -64,7 +64,7 @@ bool TextureButton::has_point(const Point2 &p_point) const {
 		Rect2 rect = Rect2();
 		Size2 mask_size = click_mask->get_size();
 
-		if (_position_rect.no_area()) {
+		if (_position_rect.has_no_area()) {
 			rect.size = mask_size;
 		} else if (_tile) {
 			// if the stretch mode is tile we offset the point to keep it inside the mask size
diff --git a/scene/gui/texture_rect.cpp b/scene/gui/texture_rect.cpp
index caae48336b..423794d8ba 100644
--- a/scene/gui/texture_rect.cpp
+++ b/scene/gui/texture_rect.cpp
@@ -38,30 +38,32 @@ void TextureRect::_notification(int p_what) {
 		if (texture.is_null())
 			return;
 
+		Size2 size;
+		Point2 offset;
+		Rect2 region;
+		bool tile = false;
+
 		switch (stretch_mode) {
 			case STRETCH_SCALE_ON_EXPAND: {
-				Size2 s = expand ? get_size() : texture->get_size();
-				draw_texture_rect(texture, Rect2(Point2(), s), false);
+				size = expand ? get_size() : texture->get_size();
 			} break;
 			case STRETCH_SCALE: {
-				draw_texture_rect(texture, Rect2(Point2(), get_size()), false);
+				size = get_size();
 			} break;
 			case STRETCH_TILE: {
-				draw_texture_rect(texture, Rect2(Point2(), get_size()), true);
+				size = get_size();
+				tile = true;
 			} break;
 			case STRETCH_KEEP: {
-				draw_texture_rect(texture, Rect2(Point2(), texture->get_size()), false);
-
+				size = texture->get_size();
 			} break;
 			case STRETCH_KEEP_CENTERED: {
-
-				Vector2 ofs = (get_size() - texture->get_size()) / 2;
-				draw_texture_rect(texture, Rect2(ofs, texture->get_size()), false);
+				offset = (get_size() - texture->get_size()) / 2;
+				size = texture->get_size();
 			} break;
 			case STRETCH_KEEP_ASPECT_CENTERED:
 			case STRETCH_KEEP_ASPECT: {
-
-				Size2 size = get_size();
+				size = get_size();
 				int tex_width = texture->get_width() * size.height / texture->get_height();
 				int tex_height = size.height;
 
@@ -70,26 +72,35 @@ void TextureRect::_notification(int p_what) {
 					tex_height = texture->get_height() * tex_width / texture->get_width();
 				}
 
-				int ofs_x = 0;
-				int ofs_y = 0;
-
 				if (stretch_mode == STRETCH_KEEP_ASPECT_CENTERED) {
-					ofs_x += (size.width - tex_width) / 2;
-					ofs_y += (size.height - tex_height) / 2;
+					offset.x += (size.width - tex_width) / 2;
+					offset.y += (size.height - tex_height) / 2;
 				}
 
-				draw_texture_rect(texture, Rect2(ofs_x, ofs_y, tex_width, tex_height));
+				size.width = tex_width;
+				size.height = tex_height;
 			} break;
 			case STRETCH_KEEP_ASPECT_COVERED: {
-				Size2 size = get_size();
+				size = get_size();
+
 				Size2 tex_size = texture->get_size();
 				Size2 scaleSize(size.width / tex_size.width, size.height / tex_size.height);
 				float scale = scaleSize.width > scaleSize.height ? scaleSize.width : scaleSize.height;
 				Size2 scaledTexSize = tex_size * scale;
-				Point2 ofs = ((scaledTexSize - size) / scale).abs() / 2.0f;
-				draw_texture_rect_region(texture, Rect2(Point2(), size), Rect2(ofs, size / scale));
+
+				region.position = ((scaledTexSize - size) / scale).abs() / 2.0f;
+				region.size = size / scale;
 			} break;
 		}
+
+		size.width *= hflip ? -1.0f : 1.0f;
+		size.height *= vflip ? -1.0f : 1.0f;
+
+		if (region.has_no_area()) {
+			draw_texture_rect(texture, Rect2(offset, size), tile);
+		} else {
+			draw_texture_rect_region(texture, Rect2(offset, size), region);
+		}
 	}
 }
 
@@ -106,12 +117,18 @@ void TextureRect::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_texture"), &TextureRect::get_texture);
 	ClassDB::bind_method(D_METHOD("set_expand", "enable"), &TextureRect::set_expand);
 	ClassDB::bind_method(D_METHOD("has_expand"), &TextureRect::has_expand);
+	ClassDB::bind_method(D_METHOD("set_flip_h", "enable"), &TextureRect::set_flip_h);
+	ClassDB::bind_method(D_METHOD("is_flipped_h"), &TextureRect::is_flipped_h);
+	ClassDB::bind_method(D_METHOD("set_flip_v", "enable"), &TextureRect::set_flip_v);
+	ClassDB::bind_method(D_METHOD("is_flipped_v"), &TextureRect::is_flipped_v);
 	ClassDB::bind_method(D_METHOD("set_stretch_mode", "stretch_mode"), &TextureRect::set_stretch_mode);
 	ClassDB::bind_method(D_METHOD("get_stretch_mode"), &TextureRect::get_stretch_mode);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "expand"), "set_expand", "has_expand");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "stretch_mode", PROPERTY_HINT_ENUM, "Scale On Expand (Compat),Scale,Tile,Keep,Keep Centered,Keep Aspect,Keep Aspect Centered,Keep Aspect Covered"), "set_stretch_mode", "get_stretch_mode");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_h"), "set_flip_h", "is_flipped_h");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_v"), "set_flip_v", "is_flipped_v");
 
 	BIND_ENUM_CONSTANT(STRETCH_SCALE_ON_EXPAND);
 	BIND_ENUM_CONSTANT(STRETCH_SCALE);
@@ -161,9 +178,31 @@ TextureRect::StretchMode TextureRect::get_stretch_mode() const {
 	return stretch_mode;
 }
 
+void TextureRect::set_flip_h(bool p_flip) {
+
+	hflip = p_flip;
+	update();
+}
+bool TextureRect::is_flipped_h() const {
+
+	return hflip;
+}
+
+void TextureRect::set_flip_v(bool p_flip) {
+
+	vflip = p_flip;
+	update();
+}
+bool TextureRect::is_flipped_v() const {
+
+	return vflip;
+}
+
 TextureRect::TextureRect() {
 
 	expand = false;
+	hflip = false;
+	vflip = false;
 	set_mouse_filter(MOUSE_FILTER_PASS);
 	stretch_mode = STRETCH_SCALE_ON_EXPAND;
 }
diff --git a/scene/gui/texture_rect.h b/scene/gui/texture_rect.h
index ddd101573b..3ab35324e5 100644
--- a/scene/gui/texture_rect.h
+++ b/scene/gui/texture_rect.h
@@ -53,6 +53,8 @@ public:
 
 private:
 	bool expand;
+	bool hflip;
+	bool vflip;
 	Ref<Texture> texture;
 	StretchMode stretch_mode;
 
@@ -71,6 +73,12 @@ public:
 	void set_stretch_mode(StretchMode p_mode);
 	StretchMode get_stretch_mode() const;
 
+	void set_flip_h(bool p_flip);
+	bool is_flipped_h() const;
+
+	void set_flip_v(bool p_flip);
+	bool is_flipped_v() const;
+
 	TextureRect();
 	~TextureRect();
 };
diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp
index 49cad6fccf..f22fe5b6a5 100644
--- a/scene/gui/tree.cpp
+++ b/scene/gui/tree.cpp
@@ -29,7 +29,6 @@
 /*************************************************************************/
 
 #include "tree.h"
-#include <limits.h>
 
 #include "core/math/math_funcs.h"
 #include "core/os/input.h"
@@ -43,6 +42,8 @@
 #include "editor/editor_node.h"
 #endif
 
+#include <limits.h>
+
 void TreeItem::move_to_top() {
 
 	if (!parent || parent->children == this)
@@ -940,6 +941,7 @@ int Tree::compute_item_height(TreeItem *p_item) const {
 				int check_icon_h = cache.checked->get_height();
 				if (height < check_icon_h)
 					height = check_icon_h;
+				FALLTHROUGH;
 			}
 			case TreeItem::CELL_MODE_STRING:
 			case TreeItem::CELL_MODE_CUSTOM:
@@ -960,7 +962,8 @@ int Tree::compute_item_height(TreeItem *p_item) const {
 				}
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 	}
 	int item_min_height = p_item->get_custom_minimum_height();
@@ -2018,7 +2021,9 @@ void Tree::text_editor_enter(String p_text) {
 
 			//popup_edited_item->edited_signal.call( popup_edited_item_col );
 		} break;
-		default: { ERR_FAIL(); }
+		default: {
+			ERR_FAIL();
+		}
 	}
 
 	item_edited(popup_edited_item_col, popup_edited_item);
@@ -2845,7 +2850,7 @@ void Tree::_notification(int p_what) {
 	if (p_what == NOTIFICATION_DRAG_BEGIN) {
 
 		single_select_defer = NULL;
-		if (cache.scroll_speed > 0 && get_rect().has_point(get_viewport()->get_mouse_position() - get_global_position())) {
+		if (cache.scroll_speed > 0) {
 			scrolling = true;
 			set_physics_process_internal(true);
 		}
@@ -2892,22 +2897,22 @@ void Tree::_notification(int p_what) {
 			}
 		}
 
-		if (scrolling) {
-			Point2 point = get_viewport()->get_mouse_position() - get_global_position();
-			if (point.x < cache.scroll_border) {
-				point.x -= cache.scroll_border;
-			} else if (point.x > get_size().width - cache.scroll_border) {
-				point.x -= get_size().width - cache.scroll_border;
-			} else {
-				point.x = 0;
+		Point2 mouse_position = get_viewport()->get_mouse_position() - get_global_position();
+		if (scrolling && get_rect().grow(cache.scroll_border).has_point(mouse_position)) {
+			Point2 point;
+
+			if ((ABS(mouse_position.x) < ABS(mouse_position.x - get_size().width)) && (ABS(mouse_position.x) < cache.scroll_border)) {
+				point.x = mouse_position.x - cache.scroll_border;
+			} else if (ABS(mouse_position.x - get_size().width) < cache.scroll_border) {
+				point.x = mouse_position.x - (get_size().width - cache.scroll_border);
 			}
-			if (point.y < cache.scroll_border) {
-				point.y -= cache.scroll_border;
-			} else if (point.y > get_size().height - cache.scroll_border) {
-				point.y -= get_size().height - cache.scroll_border;
-			} else {
-				point.y = 0;
+
+			if ((ABS(mouse_position.y) < ABS(mouse_position.y - get_size().height)) && (ABS(mouse_position.y) < cache.scroll_border)) {
+				point.y = mouse_position.y - cache.scroll_border;
+			} else if (ABS(mouse_position.y - get_size().height) < cache.scroll_border) {
+				point.y = mouse_position.y - (get_size().height - cache.scroll_border);
 			}
+
 			point *= cache.scroll_speed * get_physics_process_delta_time();
 			point += get_scroll();
 			h_scroll->set_value(point.x);
@@ -3383,10 +3388,13 @@ void Tree::ensure_cursor_is_visible() {
 	int h = compute_item_height(selected) + cache.vseparation;
 	int screenh = get_size().height - h_scroll->get_combined_minimum_size().height;
 
-	if (ofs + h > v_scroll->get_value() + screenh)
+	if (h > screenh) { //screen size is too small, maybe it was not resized yet.
+		v_scroll->set_value(ofs);
+	} else if (ofs + h > v_scroll->get_value() + screenh) {
 		v_scroll->call_deferred("set_value", ofs - screenh + h);
-	else if (ofs < v_scroll->get_value())
+	} else if (ofs < v_scroll->get_value()) {
 		v_scroll->set_value(ofs);
+	}
 }
 
 int Tree::get_pressed_button() const {
@@ -3930,7 +3938,6 @@ Tree::Tree() {
 	cache.click_item = NULL;
 	cache.click_column = 0;
 	cache.hover_cell = -1;
-	cache.hover_index = -1;
 	last_keypress = 0;
 	focus_in_id = 0;
 
diff --git a/scene/main/canvas_layer.cpp b/scene/main/canvas_layer.cpp
index 2b1991ebb0..8cab1b1280 100644
--- a/scene/main/canvas_layer.cpp
+++ b/scene/main/canvas_layer.cpp
@@ -153,6 +153,7 @@ void CanvasLayer::_notification(int p_what) {
 			VisualServer::get_singleton()->viewport_attach_canvas(viewport, canvas);
 			VisualServer::get_singleton()->viewport_set_canvas_stacking(viewport, canvas, layer, get_position_in_parent());
 			VisualServer::get_singleton()->viewport_set_canvas_transform(viewport, canvas, transform);
+			_update_follow_viewport();
 
 		} break;
 		case NOTIFICATION_EXIT_TREE: {
@@ -160,6 +161,7 @@ void CanvasLayer::_notification(int p_what) {
 			vp->_canvas_layer_remove(this);
 			VisualServer::get_singleton()->viewport_remove_canvas(viewport, canvas);
 			viewport = RID();
+			_update_follow_viewport(false);
 
 		} break;
 		case NOTIFICATION_MOVED_IN_PARENT: {
@@ -235,6 +237,41 @@ RID CanvasLayer::get_canvas() const {
 
 	return canvas;
 }
+
+void CanvasLayer::set_follow_viewport(bool p_enable) {
+	if (follow_viewport == p_enable) {
+		return;
+	}
+
+	follow_viewport = p_enable;
+	_update_follow_viewport();
+}
+
+bool CanvasLayer::is_following_viewport() const {
+	return follow_viewport;
+}
+
+void CanvasLayer::set_follow_viewport_scale(float p_ratio) {
+	follow_viewport_scale = p_ratio;
+	_update_follow_viewport();
+}
+
+float CanvasLayer::get_follow_viewport_scale() const {
+	return follow_viewport_scale;
+}
+
+void CanvasLayer::_update_follow_viewport(bool p_force_exit) {
+
+	if (!is_inside_tree()) {
+		return;
+	}
+	if (p_force_exit || !follow_viewport) {
+		VS::get_singleton()->canvas_set_parent(canvas, RID(), 1.0);
+	} else {
+		VS::get_singleton()->canvas_set_parent(canvas, vp->get_world_2d()->get_canvas(), follow_viewport_scale);
+	}
+}
+
 void CanvasLayer::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_layer", "layer"), &CanvasLayer::set_layer);
@@ -255,18 +292,30 @@ void CanvasLayer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_scale", "scale"), &CanvasLayer::set_scale);
 	ClassDB::bind_method(D_METHOD("get_scale"), &CanvasLayer::get_scale);
 
+	ClassDB::bind_method(D_METHOD("set_follow_viewport", "enable"), &CanvasLayer::set_follow_viewport);
+	ClassDB::bind_method(D_METHOD("is_following_viewport"), &CanvasLayer::is_following_viewport);
+
+	ClassDB::bind_method(D_METHOD("set_follow_viewport_scale", "scale"), &CanvasLayer::set_follow_viewport_scale);
+	ClassDB::bind_method(D_METHOD("get_follow_viewport_scale"), &CanvasLayer::get_follow_viewport_scale);
+
 	ClassDB::bind_method(D_METHOD("set_custom_viewport", "viewport"), &CanvasLayer::set_custom_viewport);
 	ClassDB::bind_method(D_METHOD("get_custom_viewport"), &CanvasLayer::get_custom_viewport);
 
 	ClassDB::bind_method(D_METHOD("get_canvas"), &CanvasLayer::get_canvas);
 
+	ADD_GROUP("Layer", "");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "layer", PROPERTY_HINT_RANGE, "-128,128,1"), "set_layer", "get_layer");
+	ADD_GROUP("Transform", "");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset"), "set_offset", "get_offset");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "rotation_degrees", PROPERTY_HINT_RANGE, "-1080,1080,0.1,or_lesser,or_greater", PROPERTY_USAGE_EDITOR), "set_rotation_degrees", "get_rotation_degrees");
 	ADD_PROPERTY(PropertyInfo(Variant::REAL, "rotation", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_rotation", "get_rotation");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scale"), "set_scale", "get_scale");
 	ADD_PROPERTY(PropertyInfo(Variant::TRANSFORM2D, "transform"), "set_transform", "get_transform");
+	ADD_GROUP("", "");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "custom_viewport", PROPERTY_HINT_RESOURCE_TYPE, "Viewport", 0), "set_custom_viewport", "get_custom_viewport");
+	ADD_GROUP("Follow Viewport", "follow_viewport");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "follow_viewport_enable"), "set_follow_viewport", "is_following_viewport");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "follow_viewport_scale", PROPERTY_HINT_RANGE, "0.001,1000,0.001,or_greater,or_lesser"), "set_follow_viewport_scale", "get_follow_viewport_scale");
 }
 
 CanvasLayer::CanvasLayer() {
@@ -280,6 +329,8 @@ CanvasLayer::CanvasLayer() {
 	custom_viewport = NULL;
 	custom_viewport_id = 0;
 	sort_index = 0;
+	follow_viewport = false;
+	follow_viewport_scale = 1.0;
 }
 
 CanvasLayer::~CanvasLayer() {
diff --git a/scene/main/canvas_layer.h b/scene/main/canvas_layer.h
index 5d67245102..fa2558556c 100644
--- a/scene/main/canvas_layer.h
+++ b/scene/main/canvas_layer.h
@@ -55,8 +55,12 @@ class CanvasLayer : public Node {
 
 	int sort_index;
 
+	bool follow_viewport;
+	float follow_viewport_scale;
+
 	void _update_xform();
 	void _update_locrotscale();
+	void _update_follow_viewport(bool p_force_exit = false);
 
 protected:
 	void _notification(int p_what);
@@ -91,6 +95,12 @@ public:
 	void reset_sort_index();
 	int get_sort_index();
 
+	void set_follow_viewport(bool p_enable);
+	bool is_following_viewport() const;
+
+	void set_follow_viewport_scale(float p_ratio);
+	float get_follow_viewport_scale() const;
+
 	RID get_canvas() const;
 
 	CanvasLayer();
diff --git a/scene/main/http_request.cpp b/scene/main/http_request.cpp
index 8b68b3215c..e65314644e 100644
--- a/scene/main/http_request.cpp
+++ b/scene/main/http_request.cpp
@@ -286,7 +286,7 @@ bool HTTPRequest::_update_connection() {
 					call_deferred("_request_done", RESULT_SUCCESS, response_code, response_headers, PoolByteArray());
 					return true;
 				}
-				if (got_response && body_len < 0) {
+				if (body_len < 0) {
 					// Chunked transfer is done
 					call_deferred("_request_done", RESULT_SUCCESS, response_code, response_headers, body);
 					return true;
diff --git a/scene/main/node.cpp b/scene/main/node.cpp
index 04d7107fa4..e80de68e3b 100644
--- a/scene/main/node.cpp
+++ b/scene/main/node.cpp
@@ -39,8 +39,14 @@
 #include "scene/scene_string_names.h"
 #include "viewport.h"
 
+#ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+#endif
+
 VARIANT_ENUM_CAST(Node::PauseMode);
 
+int Node::orphan_node_count = 0;
+
 void Node::_notification(int p_notification) {
 
 	switch (p_notification) {
@@ -84,11 +90,14 @@ void Node::_notification(int p_notification) {
 				add_to_group("_vp_unhandled_key_input" + itos(get_viewport()->get_instance_id()));
 
 			get_tree()->node_count++;
+			orphan_node_count--;
 
 		} break;
 		case NOTIFICATION_EXIT_TREE: {
 
 			get_tree()->node_count--;
+			orphan_node_count++;
+
 			if (data.input)
 				remove_from_group("_vp_input" + itos(get_viewport()->get_instance_id()));
 			if (data.unhandled_input)
@@ -1313,6 +1322,10 @@ Node *Node::_get_child_by_name(const StringName &p_name) const {
 
 Node *Node::get_node_or_null(const NodePath &p_path) const {
 
+	if (p_path.is_empty()) {
+		return NULL;
+	}
+
 	if (!data.inside_tree && p_path.is_absolute()) {
 		ERR_EXPLAIN("Can't use get_node() with absolute paths from outside the active scene tree.");
 		ERR_FAIL_V(NULL);
@@ -2417,7 +2430,7 @@ void Node::_replace_connections_target(Node *p_new_target) {
 
 		if (c.flags & CONNECT_PERSIST) {
 			c.source->disconnect(c.signal, this, c.method);
-			bool valid = p_new_target->has_method(c.method) || p_new_target->get_script().is_null() || Ref<Script>(p_new_target->get_script())->has_method(c.method);
+			bool valid = p_new_target->has_method(c.method) || Ref<Script>(p_new_target->get_script()).is_null() || Ref<Script>(p_new_target->get_script())->has_method(c.method);
 			ERR_EXPLAIN("Attempt to connect signal \'" + c.source->get_class() + "." + c.signal + "\' to nonexistent method \'" + c.target->get_class() + "." + c.method + "\'");
 			ERR_CONTINUE(!valid);
 			c.source->connect(c.signal, p_new_target, c.method, c.binds, c.flags);
@@ -2628,10 +2641,16 @@ NodePath Node::get_import_path() const {
 
 static void _add_nodes_to_options(const Node *p_base, const Node *p_node, List<String> *r_options) {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	if (p_node != p_base && !p_node->get_owner())
 		return;
 	String n = p_base->get_path_to(p_node);
-	r_options->push_back("\"" + n + "\"");
+	r_options->push_back(quote_style + n + quote_style);
 	for (int i = 0; i < p_node->get_child_count(); i++) {
 		_add_nodes_to_options(p_base, p_node->get_child(i), r_options);
 	}
@@ -2755,6 +2774,7 @@ void Node::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("can_process"), &Node::can_process);
 	ClassDB::bind_method(D_METHOD("print_stray_nodes"), &Node::_print_stray_nodes);
 	ClassDB::bind_method(D_METHOD("get_position_in_parent"), &Node::get_position_in_parent);
+
 	ClassDB::bind_method(D_METHOD("set_display_folded", "fold"), &Node::set_display_folded);
 	ClassDB::bind_method(D_METHOD("is_displayed_folded"), &Node::is_displayed_folded);
 
@@ -2830,10 +2850,22 @@ void Node::_bind_methods() {
 	BIND_CONSTANT(NOTIFICATION_DRAG_BEGIN);
 	BIND_CONSTANT(NOTIFICATION_DRAG_END);
 	BIND_CONSTANT(NOTIFICATION_PATH_CHANGED);
-	BIND_CONSTANT(NOTIFICATION_TRANSLATION_CHANGED);
 	BIND_CONSTANT(NOTIFICATION_INTERNAL_PROCESS);
 	BIND_CONSTANT(NOTIFICATION_INTERNAL_PHYSICS_PROCESS);
 
+	BIND_CONSTANT(NOTIFICATION_WM_MOUSE_ENTER);
+	BIND_CONSTANT(NOTIFICATION_WM_MOUSE_EXIT);
+	BIND_CONSTANT(NOTIFICATION_WM_FOCUS_IN);
+	BIND_CONSTANT(NOTIFICATION_WM_FOCUS_OUT);
+	BIND_CONSTANT(NOTIFICATION_WM_QUIT_REQUEST);
+	BIND_CONSTANT(NOTIFICATION_WM_GO_BACK_REQUEST);
+	BIND_CONSTANT(NOTIFICATION_WM_UNFOCUS_REQUEST);
+	BIND_CONSTANT(NOTIFICATION_OS_MEMORY_WARNING);
+	BIND_CONSTANT(NOTIFICATION_TRANSLATION_CHANGED);
+	BIND_CONSTANT(NOTIFICATION_WM_ABOUT);
+	BIND_CONSTANT(NOTIFICATION_CRASH);
+	BIND_CONSTANT(NOTIFICATION_OS_IME_UPDATE);
+
 	BIND_ENUM_CONSTANT(PAUSE_MODE_INHERIT);
 	BIND_ENUM_CONSTANT(PAUSE_MODE_STOP);
 	BIND_ENUM_CONSTANT(PAUSE_MODE_PROCESS);
@@ -2855,7 +2887,12 @@ void Node::_bind_methods() {
 	//ADD_PROPERTY( PropertyInfo( Variant::BOOL, "process/unhandled_input" ), "set_process_unhandled_input","is_processing_unhandled_input" ) ;
 	ADD_GROUP("Pause", "pause_");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "pause_mode", PROPERTY_HINT_ENUM, "Inherit,Stop,Process"), "set_pause_mode", "get_pause_mode");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editor/display_folded", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_display_folded", "is_displayed_folded");
+
+#ifdef ENABLE_DEPRECATED
+	//no longer exists, but remains for compatibility (keep previous scenes folded
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "editor/display_folded", PROPERTY_HINT_NONE, "", 0), "set_display_folded", "is_displayed_folded");
+#endif
+
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "name", PROPERTY_HINT_NONE, "", 0), "set_name", "get_name");
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "filename", PROPERTY_HINT_NONE, "", 0), "set_filename", "get_filename");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "owner", PROPERTY_HINT_RESOURCE_TYPE, "Node", 0), "set_owner", "get_owner");
@@ -2916,6 +2953,8 @@ Node::Node() {
 	data.use_placeholder = false;
 	data.display_folded = false;
 	data.ready_first = true;
+
+	orphan_node_count++;
 }
 
 Node::~Node() {
@@ -2926,6 +2965,8 @@ Node::~Node() {
 
 	ERR_FAIL_COND(data.parent);
 	ERR_FAIL_COND(data.children.size());
+
+	orphan_node_count--;
 }
 
 ////////////////////////////////
diff --git a/scene/main/node.h b/scene/main/node.h
index e6189389cb..9b9ca06455 100644
--- a/scene/main/node.h
+++ b/scene/main/node.h
@@ -75,6 +75,8 @@ public:
 		bool operator()(const Node *p_a, const Node *p_b) const { return p_b->data.process_priority == p_a->data.process_priority ? p_b->is_greater_than(p_a) : p_b->data.process_priority > p_a->data.process_priority; }
 	};
 
+	static int orphan_node_count;
+
 private:
 	struct GroupData {
 
@@ -216,6 +218,7 @@ protected:
 
 public:
 	enum {
+
 		// you can make your own, but don't use the same numbers as other notifications in other nodes
 		NOTIFICATION_ENTER_TREE = 10,
 		NOTIFICATION_EXIT_TREE = 11,
@@ -231,10 +234,23 @@ public:
 		NOTIFICATION_DRAG_BEGIN = 21,
 		NOTIFICATION_DRAG_END = 22,
 		NOTIFICATION_PATH_CHANGED = 23,
-		NOTIFICATION_TRANSLATION_CHANGED = 24,
+		//NOTIFICATION_TRANSLATION_CHANGED = 24, moved below
 		NOTIFICATION_INTERNAL_PROCESS = 25,
 		NOTIFICATION_INTERNAL_PHYSICS_PROCESS = 26,
 		NOTIFICATION_POST_ENTER_TREE = 27,
+		//keep these linked to node
+		NOTIFICATION_WM_MOUSE_ENTER = MainLoop::NOTIFICATION_WM_MOUSE_ENTER,
+		NOTIFICATION_WM_MOUSE_EXIT = MainLoop::NOTIFICATION_WM_MOUSE_EXIT,
+		NOTIFICATION_WM_FOCUS_IN = MainLoop::NOTIFICATION_WM_FOCUS_IN,
+		NOTIFICATION_WM_FOCUS_OUT = MainLoop::NOTIFICATION_WM_FOCUS_OUT,
+		NOTIFICATION_WM_QUIT_REQUEST = MainLoop::NOTIFICATION_WM_QUIT_REQUEST,
+		NOTIFICATION_WM_GO_BACK_REQUEST = MainLoop::NOTIFICATION_WM_GO_BACK_REQUEST,
+		NOTIFICATION_WM_UNFOCUS_REQUEST = MainLoop::NOTIFICATION_WM_UNFOCUS_REQUEST,
+		NOTIFICATION_OS_MEMORY_WARNING = MainLoop::NOTIFICATION_OS_MEMORY_WARNING,
+		NOTIFICATION_TRANSLATION_CHANGED = MainLoop::NOTIFICATION_TRANSLATION_CHANGED,
+		NOTIFICATION_WM_ABOUT = MainLoop::NOTIFICATION_WM_ABOUT,
+		NOTIFICATION_CRASH = MainLoop::NOTIFICATION_CRASH,
+		NOTIFICATION_OS_IME_UPDATE = MainLoop::NOTIFICATION_OS_IME_UPDATE
 
 	};
 
diff --git a/scene/main/scene_tree.cpp b/scene/main/scene_tree.cpp
index 689f18a09d..b81364e2f0 100644
--- a/scene/main/scene_tree.cpp
+++ b/scene/main/scene_tree.cpp
@@ -369,8 +369,7 @@ void SceneTree::set_group_flags(uint32_t p_call_flags, const StringName &p_group
 }
 
 void SceneTree::call_group(const StringName &p_group, const StringName &p_function, VARIANT_ARG_DECLARE) {
-
-	call_group_flags(0, p_group, VARIANT_ARG_PASS);
+	call_group_flags(0, p_group, p_function, VARIANT_ARG_PASS);
 }
 
 void SceneTree::notify_group(const StringName &p_group, int p_notification) {
@@ -658,13 +657,15 @@ void SceneTree::_notification(int p_notification) {
 		} break;
 		case NOTIFICATION_TRANSLATION_CHANGED: {
 			if (!Engine::get_singleton()->is_editor_hint()) {
-				get_root()->propagate_notification(Node::NOTIFICATION_TRANSLATION_CHANGED);
+				get_root()->propagate_notification(p_notification);
 			}
 		} break;
 		case NOTIFICATION_WM_UNFOCUS_REQUEST: {
 
 			notify_group_flags(GROUP_CALL_REALTIME | GROUP_CALL_MULTILEVEL, "input", NOTIFICATION_WM_UNFOCUS_REQUEST);
 
+			get_root()->propagate_notification(p_notification);
+
 		} break;
 
 		case NOTIFICATION_WM_ABOUT: {
@@ -1158,7 +1159,7 @@ void SceneTree::_update_root_rect() {
 		WARN_PRINT("Font oversampling only works with the resize modes 'Keep Width', 'Keep Height', and 'Expand'.");
 	}
 
-	if (stretch_aspect == STRETCH_ASPECT_IGNORE || ABS(viewport_aspect - video_mode_aspect) < CMP_EPSILON) {
+	if (stretch_aspect == STRETCH_ASPECT_IGNORE || Math::is_equal_approx(viewport_aspect, video_mode_aspect)) {
 		//same aspect or ignore aspect
 		viewport_size = desired_res;
 		screen_size = video_mode;
diff --git a/scene/main/scene_tree.h b/scene/main/scene_tree.h
index e15a64604d..e098b3d53c 100644
--- a/scene/main/scene_tree.h
+++ b/scene/main/scene_tree.h
@@ -287,7 +287,7 @@ protected:
 
 public:
 	enum {
-		NOTIFICATION_TRANSFORM_CHANGED = 29
+		NOTIFICATION_TRANSFORM_CHANGED = 2000
 	};
 
 	enum GroupCallFlags {
diff --git a/scene/main/viewport.cpp b/scene/main/viewport.cpp
index a5d86c3e1a..ae2c571201 100644
--- a/scene/main/viewport.cpp
+++ b/scene/main/viewport.cpp
@@ -391,9 +391,11 @@ void Viewport::_notification(int p_what) {
 
 			if (physics_object_picking && (to_screen_rect == Rect2() || Input::get_singleton()->get_mouse_mode() != Input::MOUSE_MODE_CAPTURED)) {
 
+#ifndef _3D_DISABLED
 				Vector2 last_pos(1e20, 1e20);
 				CollisionObject *last_object = NULL;
 				ObjectID last_id = 0;
+#endif
 				PhysicsDirectSpaceState::RayResult result;
 				Physics2DDirectSpaceState *ss2d = Physics2DServer::get_singleton()->space_get_direct_state(find_world_2d()->get_space());
 
@@ -659,7 +661,11 @@ void Viewport::_notification(int p_what) {
 			}
 
 		} break;
+		case SceneTree::NOTIFICATION_WM_MOUSE_EXIT:
 		case SceneTree::NOTIFICATION_WM_FOCUS_OUT: {
+
+			_drop_physics_mouseover();
+
 			if (gui.mouse_focus) {
 				//if mouse is being pressed, send a release event
 				_drop_mouse_focus();
@@ -2476,11 +2482,7 @@ void Viewport::_gui_hid_control(Control *p_control) {
 	if (gui.mouse_over == p_control)
 		gui.mouse_over = NULL;
 	if (gui.tooltip == p_control)
-		gui.tooltip = NULL;
-	if (gui.tooltip == p_control) {
-		gui.tooltip = NULL;
 		_gui_cancel_tooltip();
-	}
 }
 
 void Viewport::_gui_remove_control(Control *p_control) {
@@ -2561,6 +2563,31 @@ void Viewport::_drop_mouse_focus() {
 	}
 }
 
+void Viewport::_drop_physics_mouseover() {
+
+	physics_has_last_mousepos = false;
+
+	while (physics_2d_mouseover.size()) {
+		Object *o = ObjectDB::get_instance(physics_2d_mouseover.front()->key());
+		if (o) {
+			CollisionObject2D *co = Object::cast_to<CollisionObject2D>(o);
+			co->_mouse_exit();
+		}
+		physics_2d_mouseover.erase(physics_2d_mouseover.front());
+	}
+
+#ifndef _3D_DISABLED
+	if (physics_object_over) {
+		CollisionObject *co = Object::cast_to<CollisionObject>(ObjectDB::get_instance(physics_object_over));
+		if (co) {
+			co->_mouse_exit();
+		}
+	}
+
+	physics_object_over = physics_object_capture = 0;
+#endif
+}
+
 List<Control *>::Element *Viewport::_gui_show_modal(Control *p_control) {
 
 	gui.modal_stack.push_back(p_control);
@@ -3193,7 +3220,7 @@ Viewport::Viewport() {
 	gui.tooltip_timer = -1;
 
 	//gui.tooltip_timer->force_parent_owned();
-	gui.tooltip_delay = GLOBAL_DEF("gui/timers/tooltip_delay_sec", 0.7);
+	gui.tooltip_delay = GLOBAL_DEF("gui/timers/tooltip_delay_sec", 0.5);
 	ProjectSettings::get_singleton()->set_custom_property_info("gui/timers/tooltip_delay_sec", PropertyInfo(Variant::REAL, "gui/timers/tooltip_delay_sec", PROPERTY_HINT_RANGE, "0,5,0.01,or_greater")); // No negative numbers
 
 	gui.tooltip = NULL;
diff --git a/scene/main/viewport.h b/scene/main/viewport.h
index 831c285517..d67b4ac348 100644
--- a/scene/main/viewport.h
+++ b/scene/main/viewport.h
@@ -383,6 +383,7 @@ private:
 	void _canvas_layer_remove(CanvasLayer *p_canvas_layer);
 
 	void _drop_mouse_focus();
+	void _drop_physics_mouseover();
 
 	void _update_canvas_items(Node *p_node);
 
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index 49c9c4c23c..47f5b152f0 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -139,6 +139,7 @@
 #include "scene/resources/dynamic_font.h"
 #include "scene/resources/dynamic_font_stb.h"
 #include "scene/resources/gradient.h"
+#include "scene/resources/height_map_shape.h"
 #include "scene/resources/line_shape_2d.h"
 #include "scene/resources/material.h"
 #include "scene/resources/mesh.h"
@@ -476,6 +477,7 @@ void register_scene_types() {
 	ClassDB::register_class<VisualShaderNodeInput>();
 	ClassDB::register_virtual_class<VisualShaderNodeOutput>();
 	ClassDB::register_class<VisualShaderNodeScalarConstant>();
+	ClassDB::register_class<VisualShaderNodeBooleanConstant>();
 	ClassDB::register_class<VisualShaderNodeColorConstant>();
 	ClassDB::register_class<VisualShaderNodeVec3Constant>();
 	ClassDB::register_class<VisualShaderNodeTransformConstant>();
@@ -486,8 +488,23 @@ void register_scene_types() {
 	ClassDB::register_class<VisualShaderNodeTransformVecMult>();
 	ClassDB::register_class<VisualShaderNodeScalarFunc>();
 	ClassDB::register_class<VisualShaderNodeVectorFunc>();
+	ClassDB::register_class<VisualShaderNodeColorFunc>();
+	ClassDB::register_class<VisualShaderNodeTransformFunc>();
 	ClassDB::register_class<VisualShaderNodeDotProduct>();
 	ClassDB::register_class<VisualShaderNodeVectorLen>();
+	ClassDB::register_class<VisualShaderNodeDeterminant>();
+	ClassDB::register_class<VisualShaderNodeScalarDerivativeFunc>();
+	ClassDB::register_class<VisualShaderNodeVectorDerivativeFunc>();
+	ClassDB::register_class<VisualShaderNodeScalarClamp>();
+	ClassDB::register_class<VisualShaderNodeVectorClamp>();
+	ClassDB::register_class<VisualShaderNodeFaceForward>();
+	ClassDB::register_class<VisualShaderNodeOuterProduct>();
+	ClassDB::register_class<VisualShaderNodeVectorScalarStep>();
+	ClassDB::register_class<VisualShaderNodeScalarSmoothStep>();
+	ClassDB::register_class<VisualShaderNodeVectorSmoothStep>();
+	ClassDB::register_class<VisualShaderNodeVectorScalarSmoothStep>();
+	ClassDB::register_class<VisualShaderNodeVectorDistance>();
+	ClassDB::register_class<VisualShaderNodeVectorRefract>();
 	ClassDB::register_class<VisualShaderNodeScalarInterp>();
 	ClassDB::register_class<VisualShaderNodeVectorInterp>();
 	ClassDB::register_class<VisualShaderNodeVectorCompose>();
@@ -498,11 +515,14 @@ void register_scene_types() {
 	ClassDB::register_class<VisualShaderNodeCubeMap>();
 	ClassDB::register_virtual_class<VisualShaderNodeUniform>();
 	ClassDB::register_class<VisualShaderNodeScalarUniform>();
+	ClassDB::register_class<VisualShaderNodeBooleanUniform>();
 	ClassDB::register_class<VisualShaderNodeColorUniform>();
 	ClassDB::register_class<VisualShaderNodeVec3Uniform>();
 	ClassDB::register_class<VisualShaderNodeTransformUniform>();
 	ClassDB::register_class<VisualShaderNodeTextureUniform>();
 	ClassDB::register_class<VisualShaderNodeCubeMapUniform>();
+	ClassDB::register_class<VisualShaderNodeIf>();
+	ClassDB::register_class<VisualShaderNodeSwitch>();
 
 	ClassDB::register_class<ShaderMaterial>();
 	ClassDB::register_virtual_class<CanvasItem>();
@@ -591,6 +611,7 @@ void register_scene_types() {
 	ClassDB::register_class<BoxShape>();
 	ClassDB::register_class<CapsuleShape>();
 	ClassDB::register_class<CylinderShape>();
+	ClassDB::register_class<HeightMapShape>();
 	ClassDB::register_class<PlaneShape>();
 	ClassDB::register_class<ConvexPolygonShape>();
 	ClassDB::register_class<ConcavePolygonShape>();
@@ -614,6 +635,7 @@ void register_scene_types() {
 	ClassDB::register_class<StreamTexture>();
 	ClassDB::register_class<ImageTexture>();
 	ClassDB::register_class<AtlasTexture>();
+	ClassDB::register_class<MeshTexture>();
 	ClassDB::register_class<LargeTexture>();
 	ClassDB::register_class<CurveTexture>();
 	ClassDB::register_class<GradientTexture>();
@@ -760,7 +782,11 @@ void unregister_scene_types() {
 	ResourceLoader::remove_resource_format_loader(resource_loader_bmfont);
 	resource_loader_bmfont.unref();
 
+	//SpatialMaterial is not initialised when 3D is disabled, so it shouldn't be cleaned up either
+#ifndef _3D_DISABLED
 	SpatialMaterial::finish_shaders();
+#endif // _3D_DISABLED
+
 	ParticlesMaterial::finish_shaders();
 	CanvasItemMaterial::finish_shaders();
 	SceneStringNames::free();
diff --git a/scene/resources/animation.cpp b/scene/resources/animation.cpp
index 3eb16c544c..9c79b2ba3b 100644
--- a/scene/resources/animation.cpp
+++ b/scene/resources/animation.cpp
@@ -1466,7 +1466,7 @@ int Animation::_find(const Vector<K> &p_keys, float p_time) const {
 	int high = len - 1;
 	int middle = 0;
 
-#if DEBUG_ENABLED
+#ifdef DEBUG_ENABLED
 	if (low > high)
 		ERR_PRINT("low > high, this may be a bug");
 #endif
@@ -1477,7 +1477,7 @@ int Animation::_find(const Vector<K> &p_keys, float p_time) const {
 
 		middle = (low + high) / 2;
 
-		if (Math::abs(p_time - keys[middle].time) < CMP_EPSILON) { //match
+		if (Math::is_equal_approx(p_time, keys[middle].time)) { //match
 			return middle;
 		} else if (p_time < keys[middle].time)
 			high = middle - 1; //search low end of array
@@ -1680,10 +1680,10 @@ T Animation::_interpolate(const Vector<TKey<T> > &p_keys, float p_time, Interpol
 				float delta = p_keys[next].time - p_keys[idx].time;
 				float from = p_time - p_keys[idx].time;
 
-				if (Math::absf(delta) > CMP_EPSILON)
-					c = from / delta;
-				else
+				if (Math::is_zero_approx(delta))
 					c = 0;
+				else
+					c = from / delta;
 
 			} else {
 
@@ -1691,10 +1691,10 @@ T Animation::_interpolate(const Vector<TKey<T> > &p_keys, float p_time, Interpol
 				float delta = (length - p_keys[idx].time) + p_keys[next].time;
 				float from = p_time - p_keys[idx].time;
 
-				if (Math::absf(delta) > CMP_EPSILON)
-					c = from / delta;
-				else
+				if (Math::is_zero_approx(delta))
 					c = 0;
+				else
+					c = from / delta;
 			}
 
 		} else {
@@ -1707,10 +1707,10 @@ T Animation::_interpolate(const Vector<TKey<T> > &p_keys, float p_time, Interpol
 			float delta = endtime + p_keys[next].time;
 			float from = endtime + p_time;
 
-			if (Math::absf(delta) > CMP_EPSILON)
-				c = from / delta;
-			else
+			if (Math::is_zero_approx(delta))
 				c = 0;
+			else
+				c = from / delta;
 		}
 
 	} else { // no loop
@@ -1723,10 +1723,10 @@ T Animation::_interpolate(const Vector<TKey<T> > &p_keys, float p_time, Interpol
 				float delta = p_keys[next].time - p_keys[idx].time;
 				float from = p_time - p_keys[idx].time;
 
-				if (Math::absf(delta) > CMP_EPSILON)
-					c = from / delta;
-				else
+				if (Math::is_zero_approx(delta))
 					c = 0;
+				else
+					c = from / delta;
 
 			} else {
 
@@ -2638,6 +2638,7 @@ void Animation::copy_track(int p_track, Ref<Animation> p_to_animation) {
 	p_to_animation->track_set_enabled(dst_track, track_is_enabled(p_track));
 	p_to_animation->track_set_interpolation_type(dst_track, track_get_interpolation_type(p_track));
 	p_to_animation->track_set_interpolation_loop_wrap(dst_track, track_get_interpolation_loop_wrap(p_track));
+	p_to_animation->value_track_set_update_mode(dst_track, value_track_get_update_mode(p_track));
 	for (int i = 0; i < track_get_key_count(p_track); i++) {
 		p_to_animation->track_insert_key(dst_track, track_get_key_time(p_track, i), track_get_key_value(p_track, i), track_get_key_transition(p_track, i));
 	}
@@ -2773,9 +2774,9 @@ bool Animation::_transform_track_optimize_key(const TKey<TransformKey> &t0, cons
 		const Vector3 &v1 = t1.value.loc;
 		const Vector3 &v2 = t2.value.loc;
 
-		if (v0.distance_to(v2) < CMP_EPSILON) {
+		if (Math::is_zero_approx(v0.distance_to(v2))) {
 			//0 and 2 are close, let's see if 1 is close
-			if (v0.distance_to(v1) > CMP_EPSILON) {
+			if (!Math::is_zero_approx(v0.distance_to(v1))) {
 				//not close, not optimizable
 				return false;
 			}
@@ -2812,9 +2813,9 @@ bool Animation::_transform_track_optimize_key(const TKey<TransformKey> &t0, cons
 
 		//localize both to rotation from q0
 
-		if ((q0 - q2).length() < CMP_EPSILON) {
+		if (Math::is_zero_approx((q0 - q2).length())) {
 
-			if ((q0 - q1).length() > CMP_EPSILON)
+			if (!Math::is_zero_approx((q0 - q1).length()))
 				return false;
 
 		} else {
@@ -2862,9 +2863,9 @@ bool Animation::_transform_track_optimize_key(const TKey<TransformKey> &t0, cons
 		const Vector3 &v1 = t1.value.scale;
 		const Vector3 &v2 = t2.value.scale;
 
-		if (v0.distance_to(v2) < CMP_EPSILON) {
+		if (Math::is_zero_approx(v0.distance_to(v2))) {
 			//0 and 2 are close, let's see if 1 is close
-			if (v0.distance_to(v1) > CMP_EPSILON) {
+			if (!Math::is_zero_approx(v0.distance_to(v1))) {
 				//not close, not optimizable
 				return false;
 			}
diff --git a/scene/resources/animation.h b/scene/resources/animation.h
index b66ae184e9..3d38a8902f 100644
--- a/scene/resources/animation.h
+++ b/scene/resources/animation.h
@@ -93,7 +93,6 @@ private:
 	template <class T>
 	struct TKey : public Key {
 
-		float time;
 		T value;
 	};
 
diff --git a/scene/resources/bit_map.cpp b/scene/resources/bit_map.cpp
index d2e4d28b44..a9d85be0dc 100644
--- a/scene/resources/bit_map.cpp
+++ b/scene/resources/bit_map.cpp
@@ -96,7 +96,7 @@ int BitMap::get_true_bit_count() const {
 	const uint8_t *d = bitmask.ptr();
 	int c = 0;
 
-	//fast, almot branchless version
+	//fast, almost branchless version
 
 	for (int i = 0; i < ds; i++) {
 
@@ -106,6 +106,7 @@ int BitMap::get_true_bit_count() const {
 		c += (d[i] & (1 << 4)) >> 4;
 		c += (d[i] & (1 << 3)) >> 3;
 		c += (d[i] & (1 << 2)) >> 2;
+		c += (d[i] & (1 << 1)) >> 1;
 		c += d[i] & 1;
 	}
 
@@ -594,6 +595,64 @@ Array BitMap::_opaque_to_polygons_bind(const Rect2 &p_rect, float p_epsilon) con
 	return result_array;
 }
 
+void BitMap::resize(const Size2& p_new_size) {
+
+	Ref<BitMap> new_bitmap;
+	new_bitmap.instance();
+	new_bitmap->create(p_new_size);
+	int lw = MIN(width,p_new_size.width);
+	int lh = MIN(height,p_new_size.height);
+	for(int x=0;x<lw;x++) {
+		for(int y=0;y<lh;y++) {
+			new_bitmap->set_bit(Vector2(x,y),get_bit(Vector2(x,y)));
+		}
+	}
+
+	width = new_bitmap->width;
+	height = new_bitmap->height;
+	bitmask = new_bitmap->bitmask;
+}
+
+Ref<Image> BitMap::convert_to_image() const {
+
+	Ref<Image> image;
+	image.instance();
+	image->create(width,height,false,Image::FORMAT_L8);
+	image->lock();
+	for(int i=0;i<width;i++) {
+		for(int j=0;j<height;j++) {
+			image->set_pixel( i,j,get_bit(Point2(i,j)) ? Color(1,1,1) : Color(0,0,0));
+		}
+	}
+
+	image->unlock();
+
+	return image;
+}
+void BitMap::blit(const Vector2& p_pos,const Ref<BitMap>& p_bitmap) {
+
+	int x = p_pos.x;
+	int y = p_pos.y;
+	int w = p_bitmap->get_size().width;
+	int h = p_bitmap->get_size().height;
+
+	for(int i=0;i<w;i++) {
+		for (int j=0;j<h;j++) {
+			int px = x+i;
+			int py = y+j;
+			if (px<0 || px>=width)
+				continue;
+			if (py<0 || py>=height)
+				continue;
+			if (p_bitmap->get_bit(Vector2(i,j))) {
+				set_bit(Vector2(x,y),true);
+			}
+		}
+	}
+
+}
+
+
 void BitMap::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("create", "size"), &BitMap::create);
diff --git a/scene/resources/bit_map.h b/scene/resources/bit_map.h
index b3c86afd38..6e1171b8a9 100644
--- a/scene/resources/bit_map.h
+++ b/scene/resources/bit_map.h
@@ -64,9 +64,13 @@ public:
 	int get_true_bit_count() const;
 
 	Size2 get_size() const;
+	void resize(const Size2& p_new_size);
 
 	void grow_mask(int p_pixels, const Rect2 &p_rect);
 
+	void blit(const Vector2& p_pos,const Ref<BitMap>& p_bitmap);
+	Ref<Image> convert_to_image() const;
+
 	Vector<Vector<Vector2> > clip_opaque_to_polygons(const Rect2 &p_rect, float p_epsilon = 2.0) const;
 
 	BitMap();
diff --git a/scene/resources/box_shape.cpp b/scene/resources/box_shape.cpp
index d93754076c..d819e9f776 100644
--- a/scene/resources/box_shape.cpp
+++ b/scene/resources/box_shape.cpp
@@ -51,6 +51,7 @@ Vector<Vector3> BoxShape::_gen_debug_mesh_lines() {
 void BoxShape::_update_shape() {
 
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), extents);
+	Shape::_update_shape();
 }
 
 void BoxShape::set_extents(const Vector3 &p_extents) {
diff --git a/scene/resources/capsule_shape.cpp b/scene/resources/capsule_shape.cpp
index 3f7bf1e0ec..669b261bfe 100644
--- a/scene/resources/capsule_shape.cpp
+++ b/scene/resources/capsule_shape.cpp
@@ -75,6 +75,7 @@ void CapsuleShape::_update_shape() {
 	d["radius"] = radius;
 	d["height"] = height;
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), d);
+	Shape::_update_shape();
 }
 
 void CapsuleShape::set_radius(float p_radius) {
diff --git a/scene/resources/concave_polygon_shape.cpp b/scene/resources/concave_polygon_shape.cpp
index b192d088d8..b4cc38c8c0 100644
--- a/scene/resources/concave_polygon_shape.cpp
+++ b/scene/resources/concave_polygon_shape.cpp
@@ -65,6 +65,7 @@ Vector<Vector3> ConcavePolygonShape::_gen_debug_mesh_lines() {
 }
 
 void ConcavePolygonShape::_update_shape() {
+	Shape::_update_shape();
 }
 
 void ConcavePolygonShape::set_faces(const PoolVector<Vector3> &p_faces) {
diff --git a/scene/resources/convex_polygon_shape.cpp b/scene/resources/convex_polygon_shape.cpp
index 98d3460ed2..499688a185 100644
--- a/scene/resources/convex_polygon_shape.cpp
+++ b/scene/resources/convex_polygon_shape.cpp
@@ -58,7 +58,7 @@ Vector<Vector3> ConvexPolygonShape::_gen_debug_mesh_lines() {
 void ConvexPolygonShape::_update_shape() {
 
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), points);
-	emit_changed();
+	Shape::_update_shape();
 }
 
 void ConvexPolygonShape::set_points(const PoolVector<Vector3> &p_points) {
@@ -83,6 +83,4 @@ void ConvexPolygonShape::_bind_methods() {
 
 ConvexPolygonShape::ConvexPolygonShape() :
 		Shape(PhysicsServer::get_singleton()->shape_create(PhysicsServer::SHAPE_CONVEX_POLYGON)) {
-
-	//set_points(Vector3(1,1,1));
 }
diff --git a/scene/resources/convex_polygon_shape_2d.cpp b/scene/resources/convex_polygon_shape_2d.cpp
index f275405de2..d424fb2814 100644
--- a/scene/resources/convex_polygon_shape_2d.cpp
+++ b/scene/resources/convex_polygon_shape_2d.cpp
@@ -99,10 +99,4 @@ Rect2 ConvexPolygonShape2D::get_rect() const {
 
 ConvexPolygonShape2D::ConvexPolygonShape2D() :
 		Shape2D(Physics2DServer::get_singleton()->convex_polygon_shape_create()) {
-
-	int pcount = 3;
-	for (int i = 0; i < pcount; i++)
-		points.push_back(Vector2(Math::sin(i * Math_PI * 2 / pcount), -Math::cos(i * Math_PI * 2 / pcount)) * 10);
-
-	_update_shape();
 }
diff --git a/scene/resources/curve.cpp b/scene/resources/curve.cpp
index 464ca60d31..ece8ad4bb0 100644
--- a/scene/resources/curve.cpp
+++ b/scene/resources/curve.cpp
@@ -268,7 +268,7 @@ void Curve::update_auto_tangents(int i) {
 	}
 
 	if (i + 1 < _points.size()) {
-		if (p.right_mode == TANGENT_LINEAR && i + 1 < _points.size()) {
+		if (p.right_mode == TANGENT_LINEAR) {
 			Vector2 v = (_points[i + 1].pos - p.pos).normalized();
 			p.right_tangent = v.y / v.x;
 		}
diff --git a/scene/resources/cylinder_shape.cpp b/scene/resources/cylinder_shape.cpp
index 4fd829b349..f60f7ab376 100644
--- a/scene/resources/cylinder_shape.cpp
+++ b/scene/resources/cylinder_shape.cpp
@@ -68,6 +68,7 @@ void CylinderShape::_update_shape() {
 	d["radius"] = radius;
 	d["height"] = height;
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), d);
+	Shape::_update_shape();
 }
 
 void CylinderShape::set_radius(float p_radius) {
diff --git a/scene/resources/default_theme/default_theme.cpp b/scene/resources/default_theme/default_theme.cpp
index c7a815d8a4..b3bd3f47e6 100644
--- a/scene/resources/default_theme/default_theme.cpp
+++ b/scene/resources/default_theme/default_theme.cpp
@@ -359,7 +359,9 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_stylebox("focus", "CheckButton", focus);
 
 	theme->set_icon("on", "CheckButton", make_icon(toggle_on_png));
+	theme->set_icon("on_disabled", "CheckButton", make_icon(toggle_on_disabled_png));
 	theme->set_icon("off", "CheckButton", make_icon(toggle_off_png));
+	theme->set_icon("off_disabled", "CheckButton", make_icon(toggle_off_disabled_png));
 
 	theme->set_font("font", "CheckButton", default_font);
 
@@ -423,6 +425,8 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_stylebox("completion", "TextEdit", make_stylebox(tree_bg_png, 3, 3, 3, 3, 0, 0, 0, 0));
 
 	theme->set_icon("tab", "TextEdit", make_icon(tab_png));
+	theme->set_icon("folded", "TextEdit", make_icon(arrow_right_png));
+	theme->set_icon("fold", "TextEdit", make_icon(arrow_down_png));
 
 	theme->set_font("font", "TextEdit", default_font);
 
@@ -437,6 +441,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_color("selection_color", "TextEdit", font_color_selection);
 	theme->set_color("mark_color", "TextEdit", Color(1.0, 0.4, 0.4, 0.4));
 	theme->set_color("breakpoint_color", "TextEdit", Color(0.8, 0.8, 0.4, 0.2));
+	theme->set_color("executing_line_color", "TextEdit", Color(0.2, 0.8, 0.2, 0.4));
 	theme->set_color("code_folding_color", "TextEdit", Color(0.8, 0.8, 0.8, 0.8));
 	theme->set_color("current_line_color", "TextEdit", Color(0.25, 0.25, 0.26, 0.8));
 	theme->set_color("caret_color", "TextEdit", control_font_color);
@@ -795,7 +800,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_font("bold_italics_font", "RichTextLabel", default_font);
 	theme->set_font("mono_font", "RichTextLabel", default_font);
 
-	theme->set_color("default_color", "RichTextLabel", control_font_color);
+	theme->set_color("default_color", "RichTextLabel", Color(1, 1, 1));
 	theme->set_color("font_color_selected", "RichTextLabel", font_color_selection);
 	theme->set_color("selection_color", "RichTextLabel", Color(0.1, 0.1, 1, 0.8));
 
@@ -830,14 +835,6 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_constant("autohide", "HSplitContainer", 1 * scale);
 	theme->set_constant("autohide", "VSplitContainer", 1 * scale);
 
-	// ReferenceRect
-
-	Ref<StyleBoxTexture> ttnc = make_stylebox(full_panel_bg_png, 8, 8, 8, 8);
-	ttnc->set_draw_center(false);
-
-	theme->set_stylebox("panelnc", "Panel", ttnc);
-	theme->set_stylebox("panelf", "Panel", tc_sb);
-
 	Ref<StyleBoxTexture> sb_pc = make_stylebox(tab_container_bg_png, 4, 4, 4, 4, 7, 7, 7, 7);
 	theme->set_stylebox("panel", "PanelContainer", sb_pc);
 
diff --git a/scene/resources/default_theme/make_header.py b/scene/resources/default_theme/make_header.py
index 73b1ae0b0b..bd5a723b23 100755
--- a/scene/resources/default_theme/make_header.py
+++ b/scene/resources/default_theme/make_header.py
@@ -1,8 +1,6 @@
 #!/usr/bin/env python
 
-import os
 import glob
-import string
 
 enc = "utf-8"
 
diff --git a/scene/resources/default_theme/theme_data.h b/scene/resources/default_theme/theme_data.h
index 2b251e5f81..a09b811b37 100644
--- a/scene/resources/default_theme/theme_data.h
+++ b/scene/resources/default_theme/theme_data.h
@@ -402,10 +402,18 @@ static const unsigned char toggle_off_png[] = {
 	0x89, 0x50, 0x4e, 0x47, 0xd, 0xa, 0x1a, 0xa, 0x0, 0x0, 0x0, 0xd, 0x49, 0x48, 0x44, 0x52, 0x0, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0, 0x20, 0x8, 0x3, 0x0, 0x0, 0x0, 0x95, 0x43, 0x8e, 0xb6, 0x0, 0x0, 0x1, 0x7a, 0x50, 0x4c, 0x54, 0x45, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14, 0x14, 0x17, 0x20, 0x20, 0x25, 0x24, 0x24, 0x28, 0x24, 0x24, 0x29, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x10, 0x13, 0x22, 0x22, 0x27, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x19, 0x19, 0x1c, 0x1a, 0x1a, 0x1d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x11, 0x11, 0x14, 0x12, 0x12, 0x14, 0x23, 0x23, 0x27, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x15, 0x15, 0x18, 0x20, 0x20, 0x25, 0x20, 0x20, 0x24, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x24, 0x24, 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0x40, 0x44, 0xad, 0xad, 0xaf, 0xff, 0xff, 0xff, 0xf2, 0xf2, 0xf2, 0x77, 0x77, 0x7a, 0x5b, 0x5b, 0x5f, 0x32, 0x32, 0x37, 0x5d, 0x2e, 0x3d, 0x3e, 0x29, 0x32, 0xc9, 0xc9, 0xca, 0xbb, 0xbb, 0xbd, 0x69, 0x69, 0x6c, 0x69, 0x30, 0x41, 0x2f, 0x26, 0x2d, 0x84, 0x84, 0x87, 0xd6, 0xd6, 0xd7, 0x92, 0x92, 0x94, 0xa0, 0xa0, 0xa2, 0x4e, 0x4e, 0x52, 0x48, 0x2b, 0x36, 0x2c, 0x26, 0x2b, 0x97, 0xb0, 0x86, 0xb4, 0x0, 0x0, 0x0, 0x41, 0x74, 0x52, 0x4e, 0x53, 0x0, 0x1, 0x2, 0x3, 0x4, 0x9, 0xe, 0x13, 0x16, 0x18, 0x19, 0xa, 0x26, 0x36, 0x44, 0x4d, 0x52, 0x54, 0x55, 0x6, 0x12, 0x27, 0x43, 0x98, 0xe5, 0xfa, 0xfe, 0x8, 0x17, 0x35, 0x86, 0xf3, 0x7, 0x3a, 0xb4, 0xb9, 0xb, 0x28, 0x8a, 0x8b, 0xf6, 0x45, 0x5, 0x9b, 0xe6, 0xe6, 0x37, 0xf, 0xfb, 0x4c, 0xfe, 0x4e, 0x4f, 0x50, 0xfb, 0x9c, 0xf6, 0x8c, 0x3b, 0xbb, 0x3c, 0x87, 0xf3, 0x53, 0x14, 0xe5, 0x7c, 0xf3, 0x66, 0x0, 0x0, 0x2, 0x29, 0x49, 0x44, 0x41, 0x54, 0x78, 0xda, 0xdd, 0x95, 0x3, 0x93, 0x24, 0x4b, 0x14, 0x85, 0x5f, 0xb9, 0xaa, 0x6d, 0x8e, 0x6d, 0xdb, 0x73, 0x2b, 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 };
 
+static const unsigned char toggle_off_disabled_png[] = {
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+};
+
 static const unsigned char toggle_on_png[] = {
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 };
 
+static const unsigned char toggle_on_disabled_png[] = {
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+};
+
 static const unsigned char tool_button_pressed_png[] = {
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0x56, 0x57, 0x5a, 0x63, 0x77, 0xc3, 0xbb, 0x96, 0x76, 0x63, 0x5a, 0x57, 0x56, 0x56, 0x57, 0x5a, 0x63, 0x76, 0x96, 0xc3, 0xb5, 0x92, 0x75, 0x62, 0x5a, 0x57, 0x56, 0x56, 0x57, 0x59, 0x62, 0x74, 0x92, 0xc3, 0xa9, 0x8b, 0x71, 0x61, 0x59, 0x57, 0x56, 0x56, 0x57, 0x59, 0x61, 0x71, 0x8b, 0xa9, 0xc3, 0x95, 0x7e, 0x6b, 0x5e, 0x59, 0x57, 0x56, 0x56, 0x57, 0x59, 0x5e, 0x6b, 0x7e, 0x95, 0xc3, 0x4f, 0x78, 0x99, 0x30, 0x0, 0x0, 0x0, 0x67, 0x49, 0x44, 0x41, 0x54, 0x78, 0xda, 0x5c, 0x8b, 0x5, 0x2, 0xc3, 0x30, 0xc, 0xc4, 0x72, 0x5d, 0x39, 0xf4, 0xff, 0x67, 0x8e, 0x79, 0x1a, 0x37, 0xa0, 0xa0, 0x6d, 0x5d, 0x6b, 0x2a, 0x5a, 0xfd, 0x30, 0xe6, 0x1, 0xf4, 0xa7, 0x76, 0xfa, 0x37, 0x74, 0x7, 0x98, 0x52, 0x83, 0x46, 0x97, 0x41, 0xfb, 0xd6, 0x2d, 0x86, 0xae, 0xfe, 0x84, 0x6b, 0x6d, 0x32, 0x6e, 0x58, 0x28, 0x22, 0x3a, 0x41, 0x32, 0xde, 0xd7, 0x6a, 0x67, 0x5b, 0xb7, 0xb7, 0xc9, 0xb0, 0xd8, 0xd6, 0x3a, 0x65, 0x34, 0xb4, 0x21, 0x8f, 0x1c, 0x3, 0x6d, 0x21, 0x84, 0x5d, 0x32, 0x8a, 0x48, 0x22, 0x6e, 0xda, 0xa8, 0x92, 0x36, 0x3e, 0x87, 0xea, 0x7b, 0x7e, 0x0, 0x62, 0xa8, 0x25, 0xad, 0x68, 0x1d, 0x7d, 0x1a, 0x0, 0x0, 0x0, 0x0, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82
 };
diff --git a/scene/resources/default_theme/toggle_off_disabled.png b/scene/resources/default_theme/toggle_off_disabled.png
new file mode 100644
index 0000000000..d65a9d8e64
--- /dev/null
+++ b/scene/resources/default_theme/toggle_off_disabled.png
diff --git a/scene/resources/default_theme/toggle_on_disabled.png b/scene/resources/default_theme/toggle_on_disabled.png
new file mode 100644
index 0000000000..ca4dbe211f
--- /dev/null
+++ b/scene/resources/default_theme/toggle_on_disabled.png
diff --git a/scene/resources/dynamic_font.cpp b/scene/resources/dynamic_font.cpp
index fd7b67a218..8ee9879055 100644
--- a/scene/resources/dynamic_font.cpp
+++ b/scene/resources/dynamic_font.cpp
@@ -1008,7 +1008,7 @@ void DynamicFont::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_fallback_count"), &DynamicFont::get_fallback_count);
 
 	ADD_GROUP("Settings", "");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "size"), "set_size", "get_size");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "size", PROPERTY_HINT_RANGE, "1,255,1"), "set_size", "get_size");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "outline_size", PROPERTY_HINT_RANGE, "0,255,1"), "set_outline_size", "get_outline_size");
 	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "outline_color"), "set_outline_color", "get_outline_color");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_mipmaps"), "set_use_mipmaps", "get_use_mipmaps");
diff --git a/scene/resources/font.cpp b/scene/resources/font.cpp
index c72ccc97db..128db3f109 100644
--- a/scene/resources/font.cpp
+++ b/scene/resources/font.cpp
@@ -96,6 +96,7 @@ void Font::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_height"), &Font::get_height);
 	ClassDB::bind_method(D_METHOD("is_distance_field_hint"), &Font::is_distance_field_hint);
 	ClassDB::bind_method(D_METHOD("get_string_size", "string"), &Font::get_string_size);
+	ClassDB::bind_method(D_METHOD("get_wordwrap_string_size", "string", "p_width"), &Font::get_wordwrap_string_size);
 	ClassDB::bind_method(D_METHOD("has_outline"), &Font::has_outline);
 	ClassDB::bind_method(D_METHOD("draw_char", "canvas_item", "position", "char", "next", "modulate", "outline"), &Font::draw_char, DEFVAL(-1), DEFVAL(Color(1, 1, 1)), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("update_changes"), &Font::update_changes);
@@ -495,6 +496,38 @@ Size2 Font::get_string_size(const String &p_string) const {
 
 	return Size2(w, get_height());
 }
+
+Size2 Font::get_wordwrap_string_size(const String &p_string, float p_width) const {
+
+	ERR_FAIL_COND_V(p_width <= 0, Vector2(0, get_height()));
+
+	int l = p_string.length();
+	if (l == 0)
+		return Size2(p_width, get_height());
+
+	float line_w = 0;
+	float h = 0;
+	float space_w = get_char_size(' ').width;
+	Vector<String> lines = p_string.split("\n");
+	for (int i = 0; i < lines.size(); i++) {
+		h += get_height();
+		String t = lines[i];
+		line_w = 0;
+		Vector<String> words = t.split(" ");
+		for (int j = 0; j < words.size(); j++) {
+			line_w += get_string_size(words[j]).x;
+			if (line_w > p_width) {
+				h += get_height();
+				line_w = get_string_size(words[j]).x;
+			} else {
+				line_w += space_w;
+			}
+		}
+	}
+
+	return Size2(p_width, h);
+}
+
 void BitmapFont::set_fallback(const Ref<BitmapFont> &p_fallback) {
 
 	ERR_FAIL_COND(p_fallback == this);
diff --git a/scene/resources/font.h b/scene/resources/font.h
index 6bc8d9b792..def2c2285a 100644
--- a/scene/resources/font.h
+++ b/scene/resources/font.h
@@ -53,6 +53,7 @@ public:
 
 	virtual Size2 get_char_size(CharType p_char, CharType p_next = 0) const = 0;
 	Size2 get_string_size(const String &p_string) const;
+	Size2 get_wordwrap_string_size(const String &p_string, float p_width) const;
 
 	virtual bool is_distance_field_hint() const = 0;
 
diff --git a/scene/resources/gradient.h b/scene/resources/gradient.h
index a51a0ca0d0..7e7fc99a5d 100644
--- a/scene/resources/gradient.h
+++ b/scene/resources/gradient.h
@@ -91,7 +91,7 @@ public:
 		int high = points.size() - 1;
 		int middle = 0;
 
-#if DEBUG_ENABLED
+#ifdef DEBUG_ENABLED
 		if (low > high)
 			ERR_PRINT("low > high, this may be a bug");
 #endif
diff --git a/scene/resources/height_map_shape.cpp b/scene/resources/height_map_shape.cpp
new file mode 100644
index 0000000000..8cd271dab0
--- /dev/null
+++ b/scene/resources/height_map_shape.cpp
@@ -0,0 +1,204 @@
+/*************************************************************************/
+/*  height_map_shape.cpp                                                 */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "height_map_shape.h"
+#include "servers/physics_server.h"
+
+Vector<Vector3> HeightMapShape::_gen_debug_mesh_lines() {
+	Vector<Vector3> points;
+
+	if ((map_width != 0) && (map_depth != 0)) {
+
+		// This will be slow for large maps...
+		// also we'll have to figure out how well bullet centers this shape...
+
+		Vector2 size(map_width - 1, map_depth - 1);
+		Vector2 start = size * -0.5;
+
+		PoolRealArray::Read r = map_data.read();
+
+		// reserve some memory for our points..
+		points.resize(((map_width - 1) * map_depth * 2) + (map_width * (map_depth - 1) * 2));
+
+		// now set our points
+		int r_offset = 0;
+		int w_offset = 0;
+		for (int d = 0; d < map_depth; d++) {
+			Vector3 height(start.x, 0.0, start.y);
+
+			for (int w = 0; w < map_width; w++) {
+				height.y = r[r_offset++];
+
+				if (w != map_width - 1) {
+					points.write[w_offset++] = height;
+					points.write[w_offset++] = Vector3(height.x + 1.0, r[r_offset], height.z);
+				}
+
+				if (d != map_depth - 1) {
+					points.write[w_offset++] = height;
+					points.write[w_offset++] = Vector3(height.x, r[r_offset + map_width - 1], height.z + 1.0);
+				}
+
+				height.x += 1.0;
+			}
+
+			start.y += 1.0;
+		}
+	}
+
+	return points;
+}
+
+void HeightMapShape::_update_shape() {
+
+	Dictionary d;
+	d["width"] = map_width;
+	d["depth"] = map_depth;
+	d["heights"] = map_data;
+	d["min_height"] = min_height;
+	d["max_height"] = max_height;
+	PhysicsServer::get_singleton()->shape_set_data(get_shape(), d);
+}
+
+void HeightMapShape::set_map_width(int p_new) {
+	if (p_new < 1) {
+		// ignore
+	} else if (map_width != p_new) {
+		int was_size = map_width * map_depth;
+		map_width = p_new;
+
+		int new_size = map_width * map_depth;
+		map_data.resize(map_width * map_depth);
+
+		PoolRealArray::Write w = map_data.write();
+		while (was_size < new_size) {
+			w[was_size++] = 0.0;
+		}
+
+		_update_shape();
+		notify_change_to_owners();
+		_change_notify("map_width");
+		_change_notify("map_data");
+	}
+}
+
+int HeightMapShape::get_map_width() const {
+	return map_width;
+}
+
+void HeightMapShape::set_map_depth(int p_new) {
+	if (p_new < 1) {
+		// ignore
+	} else if (map_depth != p_new) {
+		int was_size = map_width * map_depth;
+		map_depth = p_new;
+
+		int new_size = map_width * map_depth;
+		map_data.resize(new_size);
+
+		PoolRealArray::Write w = map_data.write();
+		while (was_size < new_size) {
+			w[was_size++] = 0.0;
+		}
+
+		_update_shape();
+		notify_change_to_owners();
+		_change_notify("map_depth");
+		_change_notify("map_data");
+	}
+}
+
+int HeightMapShape::get_map_depth() const {
+	return map_depth;
+}
+
+void HeightMapShape::set_map_data(PoolRealArray p_new) {
+	int size = (map_width * map_depth);
+	if (p_new.size() != size) {
+		// fail
+		return;
+	}
+
+	// copy
+	PoolRealArray::Write w = map_data.write();
+	PoolRealArray::Read r = p_new.read();
+	for (int i = 0; i < size; i++) {
+		float val = r[i];
+		w[i] = val;
+		if (i == 0) {
+			min_height = val;
+			max_height = val;
+		} else {
+			if (min_height > val)
+				min_height = val;
+
+			if (max_height < val)
+				max_height = val;
+		}
+	}
+
+	_update_shape();
+	notify_change_to_owners();
+	_change_notify("map_data");
+}
+
+PoolRealArray HeightMapShape::get_map_data() const {
+	return map_data;
+}
+
+void HeightMapShape::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_map_width", "width"), &HeightMapShape::set_map_width);
+	ClassDB::bind_method(D_METHOD("get_map_width"), &HeightMapShape::get_map_width);
+	ClassDB::bind_method(D_METHOD("set_map_depth", "height"), &HeightMapShape::set_map_depth);
+	ClassDB::bind_method(D_METHOD("get_map_depth"), &HeightMapShape::get_map_depth);
+	ClassDB::bind_method(D_METHOD("set_map_data", "data"), &HeightMapShape::set_map_data);
+	ClassDB::bind_method(D_METHOD("get_map_data"), &HeightMapShape::get_map_data);
+
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "map_width", PROPERTY_HINT_RANGE, "1,4096,1"), "set_map_width", "get_map_width");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "map_depth", PROPERTY_HINT_RANGE, "1,4096,1"), "set_map_depth", "get_map_depth");
+	ADD_PROPERTY(PropertyInfo(Variant::POOL_REAL_ARRAY, "map_data"), "set_map_data", "get_map_data");
+}
+
+HeightMapShape::HeightMapShape() :
+		Shape(PhysicsServer::get_singleton()->shape_create(PhysicsServer::SHAPE_HEIGHTMAP)) {
+
+	map_width = 2;
+	map_depth = 2;
+	map_data.resize(map_width * map_depth);
+	PoolRealArray::Write w = map_data.write();
+	w[0] = 0.0;
+	w[1] = 0.0;
+	w[2] = 0.0;
+	w[3] = 0.0;
+	min_height = 0.0;
+	max_height = 0.0;
+
+	_update_shape();
+}
diff --git a/scene/resources/height_map_shape.h b/scene/resources/height_map_shape.h
new file mode 100644
index 0000000000..b062f4e893
--- /dev/null
+++ b/scene/resources/height_map_shape.h
@@ -0,0 +1,62 @@
+/*************************************************************************/
+/*  height_map_shape.h                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#ifndef HEIGHT_MAP_SHAPE_H
+#define HEIGHT_MAP_SHAPE_H
+
+#include "scene/resources/shape.h"
+
+class HeightMapShape : public Shape {
+	GDCLASS(HeightMapShape, Shape);
+
+	int map_width;
+	int map_depth;
+	PoolRealArray map_data;
+	float min_height;
+	float max_height;
+
+protected:
+	static void _bind_methods();
+	virtual void _update_shape();
+
+	virtual Vector<Vector3> _gen_debug_mesh_lines();
+
+public:
+	void set_map_width(int p_new);
+	int get_map_width() const;
+	void set_map_depth(int p_new);
+	int get_map_depth() const;
+	void set_map_data(PoolRealArray p_new);
+	PoolRealArray get_map_data() const;
+
+	HeightMapShape();
+};
+
+#endif /* !HEIGHT_MAP_SHAPE_H */
diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp
index 536eb11a27..766c7bbd9f 100644
--- a/scene/resources/material.cpp
+++ b/scene/resources/material.cpp
@@ -30,6 +30,10 @@
 
 #include "material.h"
 
+#ifdef TOOLS_ENABLED
+#include "editor/editor_settings.h"
+#endif
+
 #include "scene/scene_string_names.h"
 
 void Material::set_next_pass(const Ref<Material> &p_pass) {
@@ -236,6 +240,12 @@ void ShaderMaterial::_bind_methods() {
 
 void ShaderMaterial::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
 
+#ifdef TOOLS_ENABLED
+	const String quote_style = EDITOR_DEF("text_editor/completion/use_single_quotes", 0) ? "'" : "\"";
+#else
+	const String quote_style = "\"";
+#endif
+
 	String f = p_function.operator String();
 	if ((f == "get_shader_param" || f == "set_shader_param") && p_idx == 0) {
 
@@ -243,7 +253,7 @@ void ShaderMaterial::get_argument_options(const StringName &p_function, int p_id
 			List<PropertyInfo> pl;
 			shader->get_param_list(&pl);
 			for (List<PropertyInfo>::Element *E = pl.front(); E; E = E->next()) {
-				r_options->push_back("\"" + E->get().name.replace_first("shader_param/", "") + "\"");
+				r_options->push_back(quote_style + E->get().name.replace_first("shader_param/", "") + quote_style);
 			}
 		}
 	}
diff --git a/scene/resources/mesh.cpp b/scene/resources/mesh.cpp
index 85018f38d7..67639858ce 100644
--- a/scene/resources/mesh.cpp
+++ b/scene/resources/mesh.cpp
@@ -37,6 +37,8 @@
 
 #include <stdlib.h>
 
+Mesh::ConvexDecompositionFunc Mesh::convex_composition_function = NULL;
+
 Ref<TriangleMesh> Mesh::generate_triangle_mesh() const {
 
 	if (triangle_mesh.is_valid())
@@ -543,6 +545,49 @@ void Mesh::clear_cache() const {
 	debug_lines.clear();
 }
 
+Vector<Ref<Shape> > Mesh::convex_decompose() const {
+
+	ERR_FAIL_COND_V(!convex_composition_function, Vector<Ref<Shape> >());
+
+	PoolVector<Face3> faces = get_faces();
+	Vector<Face3> f3;
+	f3.resize(faces.size());
+	PoolVector<Face3>::Read f = faces.read();
+	for (int i = 0; i < f3.size(); i++) {
+		f3.write[i] = f[i];
+	}
+
+	Vector<Vector<Face3> > decomposed = convex_composition_function(f3);
+
+	Vector<Ref<Shape> > ret;
+
+	for (int i = 0; i < decomposed.size(); i++) {
+		Set<Vector3> points;
+		for (int j = 0; j < decomposed[i].size(); j++) {
+			points.insert(decomposed[i][j].vertex[0]);
+			points.insert(decomposed[i][j].vertex[1]);
+			points.insert(decomposed[i][j].vertex[2]);
+		}
+
+		PoolVector<Vector3> convex_points;
+		convex_points.resize(points.size());
+		{
+			PoolVector<Vector3>::Write w = convex_points.write();
+			int idx = 0;
+			for (Set<Vector3>::Element *E = points.front(); E; E = E->next()) {
+				w[idx++] = E->get();
+			}
+		}
+
+		Ref<ConvexPolygonShape> shape;
+		shape.instance();
+		shape->set_points(convex_points);
+		ret.push_back(shape);
+	}
+
+	return ret;
+}
+
 Mesh::Mesh() {
 }
 
diff --git a/scene/resources/mesh.h b/scene/resources/mesh.h
index dabfc6ea60..1457d283bd 100644
--- a/scene/resources/mesh.h
+++ b/scene/resources/mesh.h
@@ -31,6 +31,7 @@
 #ifndef MESH_H
 #define MESH_H
 
+#include "core/math/face3.h"
 #include "core/math/triangle_mesh.h"
 #include "core/resource.h"
 #include "scene/resources/material.h"
@@ -147,6 +148,12 @@ public:
 	Size2 get_lightmap_size_hint() const;
 	void clear_cache() const;
 
+	typedef Vector<Vector<Face3> > (*ConvexDecompositionFunc)(const Vector<Face3> &);
+
+	static ConvexDecompositionFunc convex_composition_function;
+
+	Vector<Ref<Shape> > convex_decompose() const;
+
 	Mesh();
 };
 
diff --git a/scene/resources/multimesh.cpp b/scene/resources/multimesh.cpp
index 1b406551ab..5d8adc0c8d 100644
--- a/scene/resources/multimesh.cpp
+++ b/scene/resources/multimesh.cpp
@@ -32,6 +32,8 @@
 #include "servers/visual_server.h"
 
 void MultiMesh::_set_transform_array(const PoolVector<Vector3> &p_array) {
+	if (transform_format != TRANSFORM_3D)
+		return;
 
 	PoolVector<Vector3> xforms = p_array;
 	int len = xforms.size();
@@ -55,6 +57,9 @@ void MultiMesh::_set_transform_array(const PoolVector<Vector3> &p_array) {
 
 PoolVector<Vector3> MultiMesh::_get_transform_array() const {
 
+	if (transform_format != TRANSFORM_3D)
+		return PoolVector<Vector3>();
+
 	if (instance_count == 0)
 		return PoolVector<Vector3>();
 
@@ -75,6 +80,54 @@ PoolVector<Vector3> MultiMesh::_get_transform_array() const {
 	return xforms;
 }
 
+void MultiMesh::_set_transform_2d_array(const PoolVector<Vector2> &p_array) {
+
+	if (transform_format != TRANSFORM_2D)
+		return;
+
+	PoolVector<Vector2> xforms = p_array;
+	int len = xforms.size();
+	ERR_FAIL_COND((len / 3) != instance_count);
+	if (len == 0)
+		return;
+
+	PoolVector<Vector2>::Read r = xforms.read();
+
+	for (int i = 0; i < len / 3; i++) {
+
+		Transform2D t;
+		t.elements[0] = r[i * 3 + 0];
+		t.elements[1] = r[i * 3 + 1];
+		t.elements[2] = r[i * 3 + 2];
+
+		set_instance_transform_2d(i, t);
+	}
+}
+
+PoolVector<Vector2> MultiMesh::_get_transform_2d_array() const {
+
+	if (transform_format != TRANSFORM_2D)
+		return PoolVector<Vector2>();
+
+	if (instance_count == 0)
+		return PoolVector<Vector2>();
+
+	PoolVector<Vector2> xforms;
+	xforms.resize(instance_count * 3);
+
+	PoolVector<Vector2>::Write w = xforms.write();
+
+	for (int i = 0; i < instance_count; i++) {
+
+		Transform2D t = get_instance_transform_2d(i);
+		w[i * 3 + 0] = t.elements[0];
+		w[i * 3 + 1] = t.elements[1];
+		w[i * 3 + 2] = t.elements[2];
+	}
+
+	return xforms;
+}
+
 void MultiMesh::_set_color_array(const PoolVector<Color> &p_array) {
 
 	PoolVector<Color> colors = p_array;
@@ -162,6 +215,16 @@ int MultiMesh::get_instance_count() const {
 	return instance_count;
 }
 
+void MultiMesh::set_visible_instance_count(int p_count) {
+	ERR_FAIL_COND(p_count < -1);
+	VisualServer::get_singleton()->multimesh_set_visible_instances(multimesh, p_count);
+	visible_instance_count = p_count;
+}
+int MultiMesh::get_visible_instance_count() const {
+
+	return visible_instance_count;
+}
+
 void MultiMesh::set_instance_transform(int p_instance, const Transform &p_transform) {
 
 	VisualServer::get_singleton()->multimesh_instance_set_transform(multimesh, p_instance, p_transform);
@@ -200,6 +263,11 @@ Color MultiMesh::get_instance_custom_data(int p_instance) const {
 	return VisualServer::get_singleton()->multimesh_instance_get_custom_data(multimesh, p_instance);
 }
 
+void MultiMesh::set_as_bulk_array(const PoolVector<float> &p_array) {
+
+	VisualServer::get_singleton()->multimesh_set_as_bulk_array(multimesh, p_array);
+}
+
 AABB MultiMesh::get_aabb() const {
 
 	return VisualServer::get_singleton()->multimesh_get_aabb(multimesh);
@@ -255,6 +323,8 @@ void MultiMesh::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_instance_count", "count"), &MultiMesh::set_instance_count);
 	ClassDB::bind_method(D_METHOD("get_instance_count"), &MultiMesh::get_instance_count);
+	ClassDB::bind_method(D_METHOD("set_visible_instance_count", "count"), &MultiMesh::set_visible_instance_count);
+	ClassDB::bind_method(D_METHOD("get_visible_instance_count"), &MultiMesh::get_visible_instance_count);
 	ClassDB::bind_method(D_METHOD("set_instance_transform", "instance", "transform"), &MultiMesh::set_instance_transform);
 	ClassDB::bind_method(D_METHOD("set_instance_transform_2d", "instance", "transform"), &MultiMesh::set_instance_transform_2d);
 	ClassDB::bind_method(D_METHOD("get_instance_transform", "instance"), &MultiMesh::get_instance_transform);
@@ -263,10 +333,13 @@ void MultiMesh::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_instance_color", "instance"), &MultiMesh::get_instance_color);
 	ClassDB::bind_method(D_METHOD("set_instance_custom_data", "instance", "custom_data"), &MultiMesh::set_instance_custom_data);
 	ClassDB::bind_method(D_METHOD("get_instance_custom_data", "instance"), &MultiMesh::get_instance_custom_data);
+	ClassDB::bind_method(D_METHOD("set_as_bulk_array", "array"), &MultiMesh::set_as_bulk_array);
 	ClassDB::bind_method(D_METHOD("get_aabb"), &MultiMesh::get_aabb);
 
 	ClassDB::bind_method(D_METHOD("_set_transform_array"), &MultiMesh::_set_transform_array);
 	ClassDB::bind_method(D_METHOD("_get_transform_array"), &MultiMesh::_get_transform_array);
+	ClassDB::bind_method(D_METHOD("_set_transform_2d_array"), &MultiMesh::_set_transform_2d_array);
+	ClassDB::bind_method(D_METHOD("_get_transform_2d_array"), &MultiMesh::_get_transform_2d_array);
 	ClassDB::bind_method(D_METHOD("_set_color_array"), &MultiMesh::_set_color_array);
 	ClassDB::bind_method(D_METHOD("_get_color_array"), &MultiMesh::_get_color_array);
 	ClassDB::bind_method(D_METHOD("_set_custom_data_array"), &MultiMesh::_set_custom_data_array);
@@ -276,8 +349,10 @@ void MultiMesh::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "transform_format", PROPERTY_HINT_ENUM, "2D,3D"), "set_transform_format", "get_transform_format");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "custom_data_format", PROPERTY_HINT_ENUM, "None,Byte,Float"), "set_custom_data_format", "get_custom_data_format");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "instance_count", PROPERTY_HINT_RANGE, "0,16384,1,or_greater"), "set_instance_count", "get_instance_count");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "visible_instance_count", PROPERTY_HINT_RANGE, "-1,16384,1,or_greater"), "set_visible_instance_count", "get_visible_instance_count");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh");
 	ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR3_ARRAY, "transform_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_transform_array", "_get_transform_array");
+	ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR2_ARRAY, "transform_2d_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_transform_2d_array", "_get_transform_2d_array");
 	ADD_PROPERTY(PropertyInfo(Variant::POOL_COLOR_ARRAY, "color_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_color_array", "_get_color_array");
 	ADD_PROPERTY(PropertyInfo(Variant::POOL_COLOR_ARRAY, "custom_data_array", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_custom_data_array", "_get_custom_data_array");
 
@@ -299,6 +374,7 @@ MultiMesh::MultiMesh() {
 	color_format = COLOR_NONE;
 	custom_data_format = CUSTOM_DATA_NONE;
 	transform_format = TRANSFORM_2D;
+	visible_instance_count = -1;
 	instance_count = 0;
 }
 
diff --git a/scene/resources/multimesh.h b/scene/resources/multimesh.h
index ac2c69e022..6b17e9278d 100644
--- a/scene/resources/multimesh.h
+++ b/scene/resources/multimesh.h
@@ -64,6 +64,7 @@ private:
 	ColorFormat color_format;
 	CustomDataFormat custom_data_format;
 	int instance_count;
+	int visible_instance_count;
 
 protected:
 	static void _bind_methods();
@@ -71,6 +72,9 @@ protected:
 	void _set_transform_array(const PoolVector<Vector3> &p_array);
 	PoolVector<Vector3> _get_transform_array() const;
 
+	void _set_transform_2d_array(const PoolVector<Vector2> &p_array);
+	PoolVector<Vector2> _get_transform_2d_array() const;
+
 	void _set_color_array(const PoolVector<Color> &p_array);
 	PoolVector<Color> _get_color_array() const;
 
@@ -93,6 +97,9 @@ public:
 	void set_instance_count(int p_count);
 	int get_instance_count() const;
 
+	void set_visible_instance_count(int p_count);
+	int get_visible_instance_count() const;
+
 	void set_instance_transform(int p_instance, const Transform &p_transform);
 	void set_instance_transform_2d(int p_instance, const Transform2D &p_transform);
 	Transform get_instance_transform(int p_instance) const;
@@ -104,6 +111,8 @@ public:
 	void set_instance_custom_data(int p_instance, const Color &p_custom_data);
 	Color get_instance_custom_data(int p_instance) const;
 
+	void set_as_bulk_array(const PoolVector<float> &p_array);
+
 	virtual AABB get_aabb() const;
 
 	virtual RID get_rid() const;
diff --git a/scene/resources/packed_scene.cpp b/scene/resources/packed_scene.cpp
index 626ed9f5b4..2c6f30f429 100644
--- a/scene/resources/packed_scene.cpp
+++ b/scene/resources/packed_scene.cpp
@@ -535,7 +535,7 @@ Error SceneState::_parse_node(Node *p_owner, Node *p_node, int p_parent_idx, Map
 					float a = value;
 					float b = original;
 
-					if (Math::abs(a - b) < CMP_EPSILON)
+					if (Math::is_equal_approx(a, b))
 						continue;
 				} else if (bool(Variant::evaluate(Variant::OP_EQUAL, value, original))) {
 
diff --git a/scene/resources/plane_shape.cpp b/scene/resources/plane_shape.cpp
index 419ff8f972..08f6ccd764 100644
--- a/scene/resources/plane_shape.cpp
+++ b/scene/resources/plane_shape.cpp
@@ -64,6 +64,7 @@ Vector<Vector3> PlaneShape::_gen_debug_mesh_lines() {
 void PlaneShape::_update_shape() {
 
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), plane);
+	Shape::_update_shape();
 }
 
 void PlaneShape::set_plane(Plane p_plane) {
diff --git a/scene/resources/ray_shape.cpp b/scene/resources/ray_shape.cpp
index b7925d8a58..0acfffdc06 100644
--- a/scene/resources/ray_shape.cpp
+++ b/scene/resources/ray_shape.cpp
@@ -47,7 +47,7 @@ void RayShape::_update_shape() {
 	d["length"] = length;
 	d["slips_on_slope"] = slips_on_slope;
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), d);
-	emit_changed();
+	Shape::_update_shape();
 }
 
 void RayShape::set_length(float p_length) {
diff --git a/scene/resources/resource_format_text.cpp b/scene/resources/resource_format_text.cpp
index b6efca9acc..e9f90fc85f 100644
--- a/scene/resources/resource_format_text.cpp
+++ b/scene/resources/resource_format_text.cpp
@@ -445,6 +445,11 @@ Error ResourceInteractiveLoaderText::poll() {
 		} else {
 
 			resource_cache.push_back(res);
+#ifdef TOOLS_ENABLED
+			//remember ID for saving
+			res->set_id_for_path(local_path,index);
+#endif
+
 		}
 
 		ExtResource er;
@@ -1355,7 +1360,7 @@ String ResourceFormatSaverTextInstance::_write_resource(const RES &res) {
 
 	if (external_resources.has(res)) {
 
-		return "ExtResource( " + itos(external_resources[res] + 1) + " )";
+		return "ExtResource( " + itos(external_resources[res]) + " )";
 	} else {
 
 		if (internal_resources.has(res)) {
@@ -1459,7 +1464,8 @@ void ResourceFormatSaverTextInstance::_find_resources(const Variant &p_variant,
 				_find_resources(v);
 			}
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -1538,18 +1544,65 @@ Error ResourceFormatSaverTextInstance::save(const String &p_path, const RES &p_r
 		f->store_line("]\n"); //one empty line
 	}
 
-	Vector<RES> sorted_er;
-	sorted_er.resize(external_resources.size());
+	{
+
+
 
+	}
+
+#ifdef TOOLS_ENABLED
+	//keep order from cached ids
+	Set<int> cached_ids_found;
+	for (Map<RES, int>::Element *E = external_resources.front(); E; E = E->next()) {
+		int cached_id = E->key()->get_id_for_path(local_path);
+		if (cached_id < 0 || cached_ids_found.has(cached_id)) {
+			E->get() = -1; //reset
+		} else {
+			E->get() = cached_id;
+			cached_ids_found.insert(cached_id);
+		}
+	}
+	//create IDs for non cached resources
 	for (Map<RES, int>::Element *E = external_resources.front(); E; E = E->next()) {
+		if (cached_ids_found.has(E->get())) { //already cached, go on
+			continue;
+		}
+
+		int attempt = 1; //start from one, more readable format
+		while(cached_ids_found.has(attempt)) {
+			attempt++;
+		}
 
-		sorted_er.write[E->get()] = E->key();
+		cached_ids_found.insert(attempt);
+		E->get() = attempt;
+		//update also in resource
+		Ref<Resource> res = E->key();
+		res->set_id_for_path(local_path,attempt);
 	}
+#else
+	//make sure to start from one, as it makes format more readable
+	for (Map<RES, int>::Element *E = external_resources.front(); E; E = E->next()) {
+		E->get() = E->get() + 1;
+	}
+#endif
+
+	Vector<ResourceSort> sorted_er;
+
+	for (Map<RES, int>::Element *E = external_resources.front(); E; E = E->next()) {
+
+		ResourceSort rs;
+		rs.resource = E->key();
+		rs.index = E->get();
+		sorted_er.push_back(rs);
+	}
+
+	sorted_er.sort();
+
 
 	for (int i = 0; i < sorted_er.size(); i++) {
-		String p = sorted_er[i]->get_path();
+		String p = sorted_er[i].resource->get_path();
 
-		f->store_string("[ext_resource path=\"" + p + "\" type=\"" + sorted_er[i]->get_save_class() + "\" id=" + itos(i + 1) + "]\n"); //bundled
+		f->store_string("[ext_resource path=\"" + p + "\" type=\"" + sorted_er[i].resource->get_save_class() + "\" id=" + itos(sorted_er[i].index) + "]\n"); //bundled
 	}
 
 	if (external_resources.size())
diff --git a/scene/resources/resource_format_text.h b/scene/resources/resource_format_text.h
index 8d78ab33b0..ab6f94986c 100644
--- a/scene/resources/resource_format_text.h
+++ b/scene/resources/resource_format_text.h
@@ -169,6 +169,15 @@ class ResourceFormatSaverTextInstance {
 	Map<RES, int> external_resources;
 	Map<RES, int> internal_resources;
 
+	struct ResourceSort {
+		RES resource;
+		int index;
+		bool operator<(const ResourceSort& p_right) const {
+			return index < p_right.index;
+		}
+
+	};
+
 	void _find_resources(const Variant &p_variant, bool p_main = false);
 
 	static String _write_resources(void *ud, const RES &p_resource);
diff --git a/scene/resources/shape.cpp b/scene/resources/shape.cpp
index 825b7f4c8b..6ba46f066c 100644
--- a/scene/resources/shape.cpp
+++ b/scene/resources/shape.cpp
@@ -96,6 +96,11 @@ Ref<ArrayMesh> Shape::get_debug_mesh() {
 	return debug_mesh_cache;
 }
 
+void Shape::_update_shape() {
+	emit_changed();
+	debug_mesh_cache.unref();
+}
+
 void Shape::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_margin", "margin"), &Shape::set_margin);
diff --git a/scene/resources/shape.h b/scene/resources/shape.h
index de99a967a8..ba763eaab1 100644
--- a/scene/resources/shape.h
+++ b/scene/resources/shape.h
@@ -51,6 +51,8 @@ protected:
 	Shape(RID p_shape);
 
 	virtual Vector<Vector3> _gen_debug_mesh_lines() = 0; // { return Vector<Vector3>(); }
+	virtual void _update_shape();
+
 public:
 	virtual RID get_rid() const { return shape; }
 
diff --git a/scene/resources/sky.cpp b/scene/resources/sky.cpp
index f9f8ff19e4..48945d4e63 100644
--- a/scene/resources/sky.cpp
+++ b/scene/resources/sky.cpp
@@ -553,10 +553,10 @@ ProceduralSky::ProceduralSky(bool p_desaturate) {
 	ground_energy = 1;
 
 	if (p_desaturate) {
-		sky_top_color.set_hsv(sky_top_color.get_h(),0,sky_top_color.get_v());
-		sky_horizon_color.set_hsv(sky_horizon_color.get_h(),0,sky_horizon_color.get_v());
-		ground_bottom_color.set_hsv(ground_bottom_color.get_h(),0,ground_bottom_color.get_v());
-		ground_horizon_color.set_hsv(ground_horizon_color.get_h(),0,ground_horizon_color.get_v());
+		sky_top_color.set_hsv(sky_top_color.get_h(), 0, sky_top_color.get_v());
+		sky_horizon_color.set_hsv(sky_horizon_color.get_h(), 0, sky_horizon_color.get_v());
+		ground_bottom_color.set_hsv(ground_bottom_color.get_h(), 0, ground_bottom_color.get_v());
+		ground_horizon_color.set_hsv(ground_horizon_color.get_h(), 0, ground_horizon_color.get_v());
 	}
 	sun_color = Color(1, 1, 1);
 	sun_latitude = 35;
diff --git a/scene/resources/sky.h b/scene/resources/sky.h
index 7327b2a627..3a6f44e11b 100644
--- a/scene/resources/sky.h
+++ b/scene/resources/sky.h
@@ -191,7 +191,7 @@ public:
 
 	virtual RID get_rid() const;
 
-	ProceduralSky(bool p_desaturate=false);
+	ProceduralSky(bool p_desaturate = false);
 	~ProceduralSky();
 };
 
diff --git a/scene/resources/sphere_shape.cpp b/scene/resources/sphere_shape.cpp
index 492cf3959d..af89413ced 100644
--- a/scene/resources/sphere_shape.cpp
+++ b/scene/resources/sphere_shape.cpp
@@ -58,6 +58,7 @@ Vector<Vector3> SphereShape::_gen_debug_mesh_lines() {
 void SphereShape::_update_shape() {
 
 	PhysicsServer::get_singleton()->shape_set_data(get_shape(), radius);
+	Shape::_update_shape();
 }
 
 void SphereShape::set_radius(float p_radius) {
diff --git a/scene/resources/style_box.cpp b/scene/resources/style_box.cpp
index cdd65c7642..5dd429fa75 100644
--- a/scene/resources/style_box.cpp
+++ b/scene/resources/style_box.cpp
@@ -368,25 +368,14 @@ Color StyleBoxFlat::get_bg_color() const {
 	return bg_color;
 }
 
-void StyleBoxFlat::set_border_color_all(const Color &p_color) {
-	for (int i = 0; i < 4; i++) {
+void StyleBoxFlat::set_border_color(const Color &p_color) {
 
-		border_color.write()[i] = p_color;
-	}
+	border_color = p_color;
 	emit_changed();
 }
-Color StyleBoxFlat::get_border_color_all() const {
+Color StyleBoxFlat::get_border_color() const {
 
-	return border_color[MARGIN_TOP];
-}
-void StyleBoxFlat::set_border_color(Margin p_border, const Color &p_color) {
-
-	border_color.write()[p_border] = p_color;
-	emit_changed();
-}
-Color StyleBoxFlat::get_border_color(Margin p_border) const {
-
-	return border_color[p_border];
+	return border_color;
 }
 
 void StyleBoxFlat::set_border_width_all(int p_size) {
@@ -511,6 +500,16 @@ int StyleBoxFlat::get_shadow_size() const {
 	return shadow_size;
 }
 
+void StyleBoxFlat::set_shadow_offset(const Point2 &p_offset) {
+
+	shadow_offset = p_offset;
+	emit_changed();
+}
+Point2 StyleBoxFlat::get_shadow_offset() const {
+
+	return shadow_offset;
+}
+
 void StyleBoxFlat::set_anti_aliased(const bool &p_anti_aliased) {
 	anti_aliased = p_anti_aliased;
 	emit_changed();
@@ -552,7 +551,7 @@ inline void set_inner_corner_radius(const Rect2 style_rect, const Rect2 inner_re
 	inner_corner_radius[0] = MAX(corner_radius[0] - rad, 0);
 
 	//tr
-	rad = MIN(border_top, border_bottom);
+	rad = MIN(border_top, border_right);
 	inner_corner_radius[1] = MAX(corner_radius[1] - rad, 0);
 
 	//br
@@ -565,12 +564,13 @@ inline void set_inner_corner_radius(const Rect2 style_rect, const Rect2 inner_re
 }
 
 inline void draw_ring(Vector<Vector2> &verts, Vector<int> &indices, Vector<Color> &colors, const Rect2 style_rect, const int corner_radius[4],
-		const Rect2 ring_rect, const int border_width[4], const Color inner_color[4], const Color outer_color[4], const int corner_detail) {
+		const Rect2 ring_rect, const int border_width[4], const Color &inner_color, const Color &outer_color, const int corner_detail, const bool fill_center = false) {
 
 	int vert_offset = verts.size();
 	if (!vert_offset) {
 		vert_offset = 0;
 	}
+
 	int adapted_corner_detail = (corner_radius[0] == 0 && corner_radius[1] == 0 && corner_radius[2] == 0 && corner_radius[3] == 0) ? 1 : corner_detail;
 
 	int ring_corner_radius[4];
@@ -585,10 +585,11 @@ inline void draw_ring(Vector<Vector2> &verts, Vector<int> &indices, Vector<Color
 
 	Rect2 inner_rect;
 	inner_rect = ring_rect.grow_individual(-border_width[MARGIN_LEFT], -border_width[MARGIN_TOP], -border_width[MARGIN_RIGHT], -border_width[MARGIN_BOTTOM]);
+
 	int inner_corner_radius[4];
+	set_inner_corner_radius(style_rect, inner_rect, corner_radius, inner_corner_radius);
 
 	Vector<Point2> inner_points;
-	set_inner_corner_radius(style_rect, inner_rect, corner_radius, inner_corner_radius);
 	inner_points.push_back(inner_rect.position + Vector2(inner_corner_radius[0], inner_corner_radius[0])); //tl
 	inner_points.push_back(Point2(inner_rect.position.x + inner_rect.size.x - inner_corner_radius[1], inner_rect.position.y + inner_corner_radius[1])); //tr
 	inner_points.push_back(inner_rect.position + inner_rect.size - Vector2(inner_corner_radius[2], inner_corner_radius[2])); //br
@@ -603,11 +604,11 @@ inline void draw_ring(Vector<Vector2> &verts, Vector<int> &indices, Vector<Color
 				Point2 corner_point;
 				if (inner_outer == 0) {
 					radius = inner_corner_radius[corner_index];
-					color = *inner_color;
+					color = inner_color;
 					corner_point = inner_points[corner_index];
 				} else {
 					radius = ring_corner_radius[corner_index];
-					color = *outer_color;
+					color = outer_color;
 					corner_point = outer_points[corner_index];
 				}
 				float x = radius * (float)cos((double)corner_index * Math_PI / 2.0 + (double)detail / (double)adapted_corner_detail * Math_PI / 2.0 + Math_PI) + corner_point.x;
@@ -618,17 +619,28 @@ inline void draw_ring(Vector<Vector2> &verts, Vector<int> &indices, Vector<Color
 		}
 	}
 
-	int vert_count = (adapted_corner_detail + 1) * 4 * 2;
+	int ring_vert_count = verts.size() - vert_offset;
+
 	//fill the indices and the colors for the border
-	for (int i = 0; i < vert_count; i++) {
-		//poly 1
-		indices.push_back(vert_offset + ((i + 0) % vert_count));
-		indices.push_back(vert_offset + ((i + 2) % vert_count));
-		indices.push_back(vert_offset + ((i + 1) % vert_count));
-		//poly 2
-		indices.push_back(vert_offset + ((i + 1) % vert_count));
-		indices.push_back(vert_offset + ((i + 2) % vert_count));
-		indices.push_back(vert_offset + ((i + 3) % vert_count));
+	for (int i = 0; i < ring_vert_count; i++) {
+		indices.push_back(vert_offset + ((i + 0) % ring_vert_count));
+		indices.push_back(vert_offset + ((i + 2) % ring_vert_count));
+		indices.push_back(vert_offset + ((i + 1) % ring_vert_count));
+	}
+
+	if (fill_center) {
+		//fill the indices and the colors for the center
+		for (int index = 0; index < ring_vert_count / 2; index += 2) {
+			int i = index;
+			//poly 1
+			indices.push_back(vert_offset + i);
+			indices.push_back(vert_offset + ring_vert_count - 4 - i);
+			indices.push_back(vert_offset + i + 2);
+			//poly 2
+			indices.push_back(vert_offset + i);
+			indices.push_back(vert_offset + ring_vert_count - 2 - i);
+			indices.push_back(vert_offset + ring_vert_count - 4 - i);
+		}
 	}
 }
 
@@ -657,13 +669,29 @@ inline void adapt_values(int p_index_a, int p_index_b, int *adapted_values, cons
 void StyleBoxFlat::draw(RID p_canvas_item, const Rect2 &p_rect) const {
 
 	//PREPARATIONS
+	bool draw_border = (border_width[0] > 0) || (border_width[1] > 0) || (border_width[2] > 0) || (border_width[3] > 0);
+	bool draw_shadow = (shadow_size > 0);
+	if (!draw_border && !draw_center && !draw_shadow) {
+		return;
+	}
 
 	bool rounded_corners = (corner_radius[0] > 0) || (corner_radius[1] > 0) || (corner_radius[2] > 0) || (corner_radius[3] > 0);
 	bool aa_on = rounded_corners && anti_aliased;
 
+	Color border_color_alpha = Color(border_color.r, border_color.g, border_color.b, 0);
+
+	bool blend_on = blend_border && draw_border;
+
 	Rect2 style_rect = p_rect.grow_individual(expand_margin[MARGIN_LEFT], expand_margin[MARGIN_TOP], expand_margin[MARGIN_RIGHT], expand_margin[MARGIN_BOTTOM]);
-	if (aa_on) {
-		style_rect = style_rect.grow(-((aa_size + 1) / 2));
+	Rect2 border_style_rect = style_rect;
+	if (aa_on && !blend_on) {
+		float aa_size_grow = 0.5 * ((aa_size + 1) / 2);
+		style_rect = style_rect.grow(-aa_size_grow);
+		for (int i = 0; i < 4; i++) {
+			if (border_width[i] > 0) {
+				border_style_rect = border_style_rect.grow_margin((Margin)i, -aa_size_grow);
+			}
+		}
 	}
 
 	//adapt borders (prevent weird overlapping/glitchy drawings)
@@ -686,79 +714,93 @@ void StyleBoxFlat::draw(RID p_canvas_item, const Rect2 &p_rect) const {
 	Vector<int> indices;
 	Vector<Color> colors;
 
-	//DRAWING
-	VisualServer *vs = VisualServer::get_singleton();
-
 	//DRAW SHADOW
-	if (shadow_size > 0) {
+	if (draw_shadow) {
 		int shadow_width[4] = { shadow_size, shadow_size, shadow_size, shadow_size };
-		Color shadow_colors[4] = { shadow_color, shadow_color, shadow_color, shadow_color };
-		Color shadow_colors_transparent[4];
-		for (int i = 0; i < 4; i++) {
-			shadow_colors_transparent[i] = Color(shadow_color.r, shadow_color.g, shadow_color.b, 0);
+
+		Rect2 shadow_inner_rect = style_rect;
+		shadow_inner_rect.position += shadow_offset;
+
+		Rect2 shadow_rect = style_rect.grow(shadow_size);
+		shadow_rect.position += shadow_offset;
+
+		Color shadow_color_transparent = Color(shadow_color.r, shadow_color.g, shadow_color.b, 0);
+
+		draw_ring(verts, indices, colors, shadow_inner_rect, adapted_corner,
+				shadow_rect, shadow_width, shadow_color, shadow_color_transparent, corner_detail);
+
+		if (draw_center) {
+			int no_border[4] = { 0, 0, 0, 0 };
+			draw_ring(verts, indices, colors, shadow_inner_rect, adapted_corner,
+					shadow_inner_rect, no_border, shadow_color, shadow_color, corner_detail, true);
 		}
-		draw_ring(verts, indices, colors, style_rect, adapted_corner,
-				style_rect.grow(shadow_size), shadow_width, shadow_colors, shadow_colors_transparent, corner_detail);
 	}
 
 	//DRAW border
-	Color bg_color_array[4] = { bg_color, bg_color, bg_color, bg_color };
-	const Color *inner_color = ((blend_border) ? bg_color_array : border_color.read().ptr());
-	draw_ring(verts, indices, colors, style_rect, adapted_corner,
-			style_rect, adapted_border, inner_color, border_color.read().ptr(), corner_detail);
+	if (draw_border) {
+		draw_ring(verts, indices, colors, border_style_rect, adapted_corner,
+				border_style_rect, adapted_border, blend_on ? (draw_center ? bg_color : border_color_alpha) : border_color, border_color, corner_detail);
+	}
 
 	//DRAW INFILL
 	if (draw_center) {
-		int temp_vert_offset = verts.size();
 		int no_border[4] = { 0, 0, 0, 0 };
 		draw_ring(verts, indices, colors, style_rect, adapted_corner,
-				infill_rect, no_border, &bg_color, &bg_color, corner_detail);
-		int added_vert_count = verts.size() - temp_vert_offset;
-		//fill the indices and the colors for the center
-		for (int index = 0; index <= added_vert_count / 2; index += 2) {
-			int i = index;
-			//poly 1
-			indices.push_back(temp_vert_offset + i);
-			indices.push_back(temp_vert_offset + added_vert_count - 4 - i);
-			indices.push_back(temp_vert_offset + i + 2);
-			//poly 1
-			indices.push_back(temp_vert_offset + i);
-			indices.push_back(temp_vert_offset + added_vert_count - 2 - i);
-			indices.push_back(temp_vert_offset + added_vert_count - 4 - i);
-		}
+				infill_rect, no_border, bg_color, bg_color, corner_detail, true);
 	}
 
 	if (aa_on) {
-
-		//HELPER ARRAYS
-		Color border_color_alpha[4];
-		for (int i = 0; i < 4; i++) {
-			Color c = border_color.read().ptr()[i];
-			border_color_alpha[i] = Color(c.r, c.g, c.b, 0);
+		Rect2 border_inner_rect = infill_rect;
+		int aa_border_width[4];
+		int aa_fill_width[4];
+		if (draw_border) {
+			border_inner_rect = border_style_rect.grow_individual(-adapted_border[MARGIN_LEFT], -adapted_border[MARGIN_TOP], -adapted_border[MARGIN_RIGHT], -adapted_border[MARGIN_BOTTOM]);
+			for (int i = 0; i < 4; i++) {
+				if (border_width[i] > 0) {
+					aa_border_width[i] = aa_size;
+					aa_fill_width[i] = 0;
+				} else {
+					aa_border_width[i] = 0;
+					aa_fill_width[i] = aa_size;
+				}
+			}
+		} else {
+			for (int i = 0; i < 4; i++) {
+				aa_fill_width[i] = aa_size;
+			}
 		}
-		Color alpha_bg = Color(bg_color.r, bg_color.g, bg_color.b, 0);
-		Color bg_color_array_alpha[4] = { alpha_bg, alpha_bg, alpha_bg, alpha_bg };
-
-		int aa_border_width[4] = { aa_size, aa_size, aa_size, aa_size };
 
 		if (draw_center) {
-			if (!blend_border) {
+			if (!draw_border || !blend_on) {
+				Rect2 aa_rect = infill_rect.grow_individual(aa_fill_width[MARGIN_LEFT], aa_fill_width[MARGIN_TOP],
+						aa_fill_width[MARGIN_RIGHT], aa_fill_width[MARGIN_BOTTOM]);
+
+				Color alpha_bg = Color(bg_color.r, bg_color.g, bg_color.b, 0);
+
 				//INFILL AA
 				draw_ring(verts, indices, colors, style_rect, adapted_corner,
-						infill_rect.grow(aa_size), aa_border_width, bg_color_array, bg_color_array_alpha, corner_detail);
+						aa_rect, aa_fill_width, bg_color, alpha_bg, corner_detail);
 			}
-		} else if (!(border_width[0] == 0 && border_width[1] == 0 && border_width[2] == 0 && border_width[3] == 0)) {
-			//DRAW INNER BORDER AA
-			draw_ring(verts, indices, colors, style_rect, adapted_corner,
-					infill_rect, aa_border_width, border_color_alpha, border_color.read().ptr(), corner_detail);
 		}
-		//DRAW OUTER BORDER AA
-		if (!(border_width[0] == 0 && border_width[1] == 0 && border_width[2] == 0 && border_width[3] == 0)) {
-			draw_ring(verts, indices, colors, style_rect, adapted_corner,
-					style_rect.grow(aa_size), aa_border_width, border_color.read().ptr(), border_color_alpha, corner_detail);
+
+		if (draw_border) {
+			if (!blend_on) {
+				//DRAW INNER BORDER AA
+				draw_ring(verts, indices, colors, border_style_rect, adapted_corner,
+						border_inner_rect, aa_border_width, border_color_alpha, border_color, corner_detail);
+			}
+
+			Rect2 aa_rect = border_style_rect.grow_individual(aa_border_width[MARGIN_LEFT], aa_border_width[MARGIN_TOP],
+					aa_border_width[MARGIN_RIGHT], aa_border_width[MARGIN_BOTTOM]);
+
+			//DRAW OUTER BORDER AA
+			draw_ring(verts, indices, colors, border_style_rect, adapted_corner,
+					aa_rect, aa_border_width, border_color, border_color_alpha, corner_detail);
 		}
 	}
 
+	//DRAWING
+	VisualServer *vs = VisualServer::get_singleton();
 	vs->canvas_item_add_triangle_array(p_canvas_item, indices, verts, colors);
 }
 
@@ -770,8 +812,8 @@ void StyleBoxFlat::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_bg_color", "color"), &StyleBoxFlat::set_bg_color);
 	ClassDB::bind_method(D_METHOD("get_bg_color"), &StyleBoxFlat::get_bg_color);
 
-	ClassDB::bind_method(D_METHOD("set_border_color", "color"), &StyleBoxFlat::set_border_color_all);
-	ClassDB::bind_method(D_METHOD("get_border_color"), &StyleBoxFlat::get_border_color_all);
+	ClassDB::bind_method(D_METHOD("set_border_color", "color"), &StyleBoxFlat::set_border_color);
+	ClassDB::bind_method(D_METHOD("get_border_color"), &StyleBoxFlat::get_border_color);
 
 	ClassDB::bind_method(D_METHOD("set_border_width_all", "width"), &StyleBoxFlat::set_border_width_all);
 	ClassDB::bind_method(D_METHOD("get_border_width_min"), &StyleBoxFlat::get_border_width_min);
@@ -802,6 +844,9 @@ void StyleBoxFlat::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_shadow_size", "size"), &StyleBoxFlat::set_shadow_size);
 	ClassDB::bind_method(D_METHOD("get_shadow_size"), &StyleBoxFlat::get_shadow_size);
 
+	ClassDB::bind_method(D_METHOD("set_shadow_offset", "offset"), &StyleBoxFlat::set_shadow_offset);
+	ClassDB::bind_method(D_METHOD("get_shadow_offset"), &StyleBoxFlat::get_shadow_offset);
+
 	ClassDB::bind_method(D_METHOD("set_anti_aliased", "anti_aliased"), &StyleBoxFlat::set_anti_aliased);
 	ClassDB::bind_method(D_METHOD("is_anti_aliased"), &StyleBoxFlat::is_anti_aliased);
 
@@ -843,6 +888,7 @@ void StyleBoxFlat::_bind_methods() {
 	ADD_GROUP("Shadow", "shadow_");
 	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "shadow_color"), "set_shadow_color", "get_shadow_color");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "shadow_size"), "set_shadow_size", "get_shadow_size");
+	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "shadow_offset"), "set_shadow_offset", "get_shadow_offset");
 
 	ADD_GROUP("Anti Aliasing", "anti_aliasing_");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "anti_aliasing"), "set_anti_aliased", "is_anti_aliased");
@@ -853,17 +899,14 @@ StyleBoxFlat::StyleBoxFlat() {
 
 	bg_color = Color(0.6, 0.6, 0.6);
 	shadow_color = Color(0, 0, 0, 0.6);
-
-	border_color.append(Color(0.8, 0.8, 0.8));
-	border_color.append(Color(0.8, 0.8, 0.8));
-	border_color.append(Color(0.8, 0.8, 0.8));
-	border_color.append(Color(0.8, 0.8, 0.8));
+	border_color = Color(0.8, 0.8, 0.8);
 
 	blend_border = false;
 	draw_center = true;
 	anti_aliased = true;
 
 	shadow_size = 0;
+	shadow_offset = Point2(0, 0);
 	corner_detail = 8;
 	aa_size = 1;
 
diff --git a/scene/resources/style_box.h b/scene/resources/style_box.h
index 9062270765..c3965fe076 100644
--- a/scene/resources/style_box.h
+++ b/scene/resources/style_box.h
@@ -149,7 +149,7 @@ class StyleBoxFlat : public StyleBox {
 
 	Color bg_color;
 	Color shadow_color;
-	PoolVector<Color> border_color;
+	Color border_color;
 
 	int border_width[4];
 	int expand_margin[4];
@@ -161,6 +161,7 @@ class StyleBoxFlat : public StyleBox {
 
 	int corner_detail;
 	int shadow_size;
+	Point2 shadow_offset;
 	int aa_size;
 
 protected:
@@ -173,10 +174,8 @@ public:
 	Color get_bg_color() const;
 
 	//Border Color
-	void set_border_color_all(const Color &p_color);
-	Color get_border_color_all() const;
-	void set_border_color(Margin p_border, const Color &p_color);
-	Color get_border_color(Margin p_border) const;
+	void set_border_color(const Color &p_color);
+	Color get_border_color() const;
 
 	//BORDER
 	//width
@@ -218,6 +217,9 @@ public:
 	void set_shadow_size(const int &p_size);
 	int get_shadow_size() const;
 
+	void set_shadow_offset(const Point2 &p_offset);
+	Point2 get_shadow_offset() const;
+
 	//ANTI_ALIASING
 	void set_anti_aliased(const bool &p_anti_aliased);
 	bool is_anti_aliased() const;
diff --git a/scene/resources/surface_tool.cpp b/scene/resources/surface_tool.cpp
index 83f29503fa..3ba43006a3 100644
--- a/scene/resources/surface_tool.cpp
+++ b/scene/resources/surface_tool.cpp
@@ -108,8 +108,55 @@ void SurfaceTool::add_vertex(const Vector3 &p_vertex) {
 	vtx.bones = last_bones;
 	vtx.tangent = last_tangent.normal;
 	vtx.binormal = last_normal.cross(last_tangent.normal).normalized() * last_tangent.d;
+
+	const int expected_vertices = 4;
+
+	if ((format & Mesh::ARRAY_FORMAT_WEIGHTS || format & Mesh::ARRAY_FORMAT_BONES) && (vtx.weights.size() != expected_vertices || vtx.bones.size() != expected_vertices)) {
+		//ensure vertices are the expected amount
+		ERR_FAIL_COND(vtx.weights.size() != vtx.bones.size());
+		if (vtx.weights.size() < expected_vertices) {
+			//less than requred, fill
+			for (int i = vtx.weights.size(); i < expected_vertices; i++) {
+				vtx.weights.push_back(0);
+				vtx.bones.push_back(0);
+			}
+		} else if (vtx.weights.size() > expected_vertices) {
+			//more than required, sort, cap and normalize.
+			Vector<WeightSort> weights;
+			for (int i = 0; i < vtx.weights.size(); i++) {
+				WeightSort ws;
+				ws.index = vtx.bones[i];
+				ws.weight = vtx.weights[i];
+				weights.push_back(ws);
+			}
+
+			//sort
+			weights.sort();
+			//cap
+			weights.resize(expected_vertices);
+			//renormalize
+			float total = 0;
+			for (int i = 0; i < expected_vertices; i++) {
+				total += weights[i].weight;
+			}
+
+			vtx.weights.resize(expected_vertices);
+			vtx.bones.resize(expected_vertices);
+
+			for (int i = 0; i < expected_vertices; i++) {
+				if (total > 0) {
+					vtx.weights.write[i] = weights[i].weight / total;
+				} else {
+					vtx.weights.write[i] = 0;
+				}
+				vtx.bones.write[i] = weights[i].index;
+			}
+		}
+	}
+
 	vertex_array.push_back(vtx);
 	first = false;
+
 	format |= Mesh::ARRAY_FORMAT_VERTEX;
 }
 void SurfaceTool::add_color(Color p_color) {
@@ -161,7 +208,6 @@ void SurfaceTool::add_uv2(const Vector2 &p_uv2) {
 void SurfaceTool::add_bones(const Vector<int> &p_bones) {
 
 	ERR_FAIL_COND(!begun);
-	ERR_FAIL_COND(p_bones.size() != 4);
 	ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_BONES));
 
 	format |= Mesh::ARRAY_FORMAT_BONES;
@@ -171,8 +217,6 @@ void SurfaceTool::add_bones(const Vector<int> &p_bones) {
 void SurfaceTool::add_weights(const Vector<float> &p_weights) {
 
 	ERR_FAIL_COND(!begun);
-
-	ERR_FAIL_COND(p_weights.size() != 4);
 	ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_WEIGHTS));
 
 	format |= Mesh::ARRAY_FORMAT_WEIGHTS;
@@ -397,7 +441,8 @@ Array SurfaceTool::commit_to_arrays() {
 				a[i] = array;
 			} break;
 
-			default: {}
+			default: {
+			}
 		}
 	}
 
diff --git a/scene/resources/surface_tool.h b/scene/resources/surface_tool.h
index a3b110f0d8..c55cade813 100644
--- a/scene/resources/surface_tool.h
+++ b/scene/resources/surface_tool.h
@@ -62,6 +62,14 @@ private:
 		static _FORCE_INLINE_ uint32_t hash(const Vertex &p_vtx);
 	};
 
+	struct WeightSort {
+		int index;
+		float weight;
+		bool operator<(const WeightSort &p_right) const {
+			return weight < p_right.weight;
+		}
+	};
+
 	bool begun;
 	bool first;
 	Mesh::PrimitiveType primitive;
diff --git a/scene/resources/texture.cpp b/scene/resources/texture.cpp
index 3ca2b56d08..92172912c2 100644
--- a/scene/resources/texture.cpp
+++ b/scene/resources/texture.cpp
@@ -34,6 +34,7 @@
 #include "core/io/image_loader.h"
 #include "core/method_bind_ext.gen.inc"
 #include "core/os/os.h"
+#include "mesh.h"
 #include "scene/resources/bit_map.h"
 
 Size2 Texture::get_size() const {
@@ -110,10 +111,12 @@ void ImageTexture::reload_from_file() {
 	Ref<Image> img;
 	img.instance();
 
-	Error err = ImageLoader::load_image(path, img);
-	ERR_FAIL_COND(err != OK);
-
-	create_from_image(img, flags);
+	if (ImageLoader::load_image(path, img) == OK) {
+		create_from_image(img, flags);
+	} else {
+		Resource::reload_from_file();
+		_change_notify();
+	}
 }
 
 bool ImageTexture::_set(const StringName &p_name, const Variant &p_value) {
@@ -637,7 +640,7 @@ Error StreamTexture::_load_data(const String &p_path, int &tw, int &th, int &tw_
 		bool mipmaps = df & FORMAT_BIT_HAS_MIPMAPS;
 
 		if (!mipmaps) {
-			int size = Image::get_image_data_size(tw, th, format, 0);
+			int size = Image::get_image_data_size(tw, th, format, false);
 
 			PoolVector<uint8_t> img_data;
 			img_data.resize(size);
@@ -659,7 +662,6 @@ Error StreamTexture::_load_data(const String &p_path, int &tw, int &th, int &tw_
 			int mipmaps2 = Image::get_image_required_mipmaps(tw, th, format);
 			int total_size = Image::get_image_data_size(tw, th, format, true);
 			int idx = 0;
-			int ofs = 0;
 
 			while (mipmaps2 > 1 && p_size_limit > 0 && (sw > p_size_limit || sh > p_size_limit)) {
 
@@ -669,9 +671,7 @@ Error StreamTexture::_load_data(const String &p_path, int &tw, int &th, int &tw_
 				idx++;
 			}
 
-			if (idx > 0) {
-				ofs = Image::get_image_data_size(tw, th, format, idx - 1);
-			}
+			int ofs = Image::get_image_mipmap_offset(tw, th, format, idx);
 
 			if (total_size - ofs <= 0) {
 				memdelete(f);
@@ -1133,6 +1133,138 @@ AtlasTexture::AtlasTexture() {
 	filter_clip = false;
 }
 
+/////////////////////////////////////////
+
+int MeshTexture::get_width() const {
+	return size.width;
+}
+int MeshTexture::get_height() const {
+	return size.height;
+}
+RID MeshTexture::get_rid() const {
+	return RID();
+}
+
+bool MeshTexture::has_alpha() const {
+	return false;
+}
+
+void MeshTexture::set_flags(uint32_t p_flags) {
+}
+
+uint32_t MeshTexture::get_flags() const {
+	return 0;
+}
+
+void MeshTexture::set_mesh(const Ref<Mesh> &p_mesh) {
+	mesh = p_mesh;
+}
+Ref<Mesh> MeshTexture::get_mesh() const {
+	return mesh;
+}
+
+void MeshTexture::set_image_size(const Size2 &p_size) {
+	size = p_size;
+}
+
+Size2 MeshTexture::get_image_size() const {
+
+	return size;
+}
+
+void MeshTexture::set_base_texture(const Ref<Texture> &p_texture) {
+	base_texture = p_texture;
+}
+
+Ref<Texture> MeshTexture::get_base_texture() const {
+	return base_texture;
+}
+
+void MeshTexture::draw(RID p_canvas_item, const Point2 &p_pos, const Color &p_modulate, bool p_transpose, const Ref<Texture> &p_normal_map) const {
+
+	if (mesh.is_null() || base_texture.is_null()) {
+		return;
+	}
+	Transform2D xform;
+	xform.set_origin(p_pos);
+	if (p_transpose) {
+		SWAP(xform.elements[0][1], xform.elements[1][0]);
+		SWAP(xform.elements[0][0], xform.elements[1][1]);
+	}
+	RID normal_rid = p_normal_map.is_valid() ? p_normal_map->get_rid() : RID();
+	VisualServer::get_singleton()->canvas_item_add_mesh(p_canvas_item, mesh->get_rid(), xform, p_modulate, base_texture->get_rid(), normal_rid);
+}
+void MeshTexture::draw_rect(RID p_canvas_item, const Rect2 &p_rect, bool p_tile, const Color &p_modulate, bool p_transpose, const Ref<Texture> &p_normal_map) const {
+	if (mesh.is_null() || base_texture.is_null()) {
+		return;
+	}
+	Transform2D xform;
+	Vector2 origin = p_rect.position;
+	if (p_rect.size.x < 0) {
+		origin.x += size.x;
+	}
+	if (p_rect.size.y < 0) {
+		origin.y += size.y;
+	}
+	xform.set_origin(origin);
+	xform.set_scale(p_rect.size / size);
+
+	if (p_transpose) {
+		SWAP(xform.elements[0][1], xform.elements[1][0]);
+		SWAP(xform.elements[0][0], xform.elements[1][1]);
+	}
+	RID normal_rid = p_normal_map.is_valid() ? p_normal_map->get_rid() : RID();
+	VisualServer::get_singleton()->canvas_item_add_mesh(p_canvas_item, mesh->get_rid(), xform, p_modulate, base_texture->get_rid(), normal_rid);
+}
+void MeshTexture::draw_rect_region(RID p_canvas_item, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate, bool p_transpose, const Ref<Texture> &p_normal_map, bool p_clip_uv) const {
+
+	if (mesh.is_null() || base_texture.is_null()) {
+		return;
+	}
+	Transform2D xform;
+	Vector2 origin = p_rect.position;
+	if (p_rect.size.x < 0) {
+		origin.x += size.x;
+	}
+	if (p_rect.size.y < 0) {
+		origin.y += size.y;
+	}
+	xform.set_origin(origin);
+	xform.set_scale(p_rect.size / size);
+
+	if (p_transpose) {
+		SWAP(xform.elements[0][1], xform.elements[1][0]);
+		SWAP(xform.elements[0][0], xform.elements[1][1]);
+	}
+	RID normal_rid = p_normal_map.is_valid() ? p_normal_map->get_rid() : RID();
+	VisualServer::get_singleton()->canvas_item_add_mesh(p_canvas_item, mesh->get_rid(), xform, p_modulate, base_texture->get_rid(), normal_rid);
+}
+bool MeshTexture::get_rect_region(const Rect2 &p_rect, const Rect2 &p_src_rect, Rect2 &r_rect, Rect2 &r_src_rect) const {
+	r_rect = p_rect;
+	r_src_rect = p_src_rect;
+	return true;
+}
+
+bool MeshTexture::is_pixel_opaque(int p_x, int p_y) const {
+	return true;
+}
+
+void MeshTexture::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &MeshTexture::set_mesh);
+	ClassDB::bind_method(D_METHOD("get_mesh"), &MeshTexture::get_mesh);
+	ClassDB::bind_method(D_METHOD("set_image_size", "size"), &MeshTexture::set_image_size);
+	ClassDB::bind_method(D_METHOD("get_image_size"), &MeshTexture::get_image_size);
+	ClassDB::bind_method(D_METHOD("set_base_texture", "texture"), &MeshTexture::set_base_texture);
+	ClassDB::bind_method(D_METHOD("get_base_texture"), &MeshTexture::get_base_texture);
+
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "base_texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_base_texture", "get_base_texture");
+	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "image_size", PROPERTY_HINT_RANGE, "0,16384,1"), "set_image_size", "get_image_size");
+}
+
+MeshTexture::MeshTexture() {
+}
+
 //////////////////////////////////////////
 
 int LargeTexture::get_width() const {
diff --git a/scene/resources/texture.h b/scene/resources/texture.h
index 281a33929c..58287b7593 100644
--- a/scene/resources/texture.h
+++ b/scene/resources/texture.h
@@ -293,6 +293,49 @@ public:
 	AtlasTexture();
 };
 
+class Mesh;
+
+class MeshTexture : public Texture {
+
+	GDCLASS(MeshTexture, Texture);
+	RES_BASE_EXTENSION("meshtex");
+
+	Ref<Texture> base_texture;
+	Ref<Mesh> mesh;
+	Size2i size;
+
+protected:
+	static void _bind_methods();
+
+public:
+	virtual int get_width() const;
+	virtual int get_height() const;
+	virtual RID get_rid() const;
+
+	virtual bool has_alpha() const;
+
+	virtual void set_flags(uint32_t p_flags);
+	virtual uint32_t get_flags() const;
+
+	void set_mesh(const Ref<Mesh> &p_mesh);
+	Ref<Mesh> get_mesh() const;
+
+	void set_image_size(const Size2 &p_size);
+	Size2 get_image_size() const;
+
+	void set_base_texture(const Ref<Texture> &p_texture);
+	Ref<Texture> get_base_texture() const;
+
+	virtual void draw(RID p_canvas_item, const Point2 &p_pos, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, const Ref<Texture> &p_normal_map = Ref<Texture>()) const;
+	virtual void draw_rect(RID p_canvas_item, const Rect2 &p_rect, bool p_tile = false, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, const Ref<Texture> &p_normal_map = Ref<Texture>()) const;
+	virtual void draw_rect_region(RID p_canvas_item, const Rect2 &p_rect, const Rect2 &p_src_rect, const Color &p_modulate = Color(1, 1, 1), bool p_transpose = false, const Ref<Texture> &p_normal_map = Ref<Texture>(), bool p_clip_uv = true) const;
+	virtual bool get_rect_region(const Rect2 &p_rect, const Rect2 &p_src_rect, Rect2 &r_rect, Rect2 &r_src_rect) const;
+
+	bool is_pixel_opaque(int p_x, int p_y) const;
+
+	MeshTexture();
+};
+
 class LargeTexture : public Texture {
 
 	GDCLASS(LargeTexture, Texture);
diff --git a/scene/resources/tile_set.cpp b/scene/resources/tile_set.cpp
index 4ddfc0331b..5b5968c10f 100644
--- a/scene/resources/tile_set.cpp
+++ b/scene/resources/tile_set.cpp
@@ -215,7 +215,7 @@ bool TileSet::_get(const StringName &p_name, Variant &r_ret) const {
 			r_ret = autotile_get_spacing(id);
 		else if (what == "bitmask_flags") {
 			Array p;
-			for (Map<Vector2, uint16_t>::Element *E = tile_map[id].autotile_data.flags.front(); E; E = E->next()) {
+			for (Map<Vector2, uint32_t>::Element *E = tile_map[id].autotile_data.flags.front(); E; E = E->next()) {
 				p.push_back(E->key());
 				p.push_back(E->value());
 			}
@@ -544,7 +544,7 @@ const Map<Vector2, int> &TileSet::autotile_get_z_index_map(int p_id) const {
 	return tile_map[p_id].autotile_data.z_index_map;
 }
 
-void TileSet::autotile_set_bitmask(int p_id, Vector2 p_coord, uint16_t p_flag) {
+void TileSet::autotile_set_bitmask(int p_id, Vector2 p_coord, uint32_t p_flag) {
 
 	ERR_FAIL_COND(!tile_map.has(p_id));
 	if (p_flag == 0) {
@@ -555,7 +555,7 @@ void TileSet::autotile_set_bitmask(int p_id, Vector2 p_coord, uint16_t p_flag) {
 	}
 }
 
-uint16_t TileSet::autotile_get_bitmask(int p_id, Vector2 p_coord) {
+uint32_t TileSet::autotile_get_bitmask(int p_id, Vector2 p_coord) {
 
 	ERR_FAIL_COND_V(!tile_map.has(p_id), 0);
 	if (!tile_map[p_id].autotile_data.flags.has(p_coord)) {
@@ -564,13 +564,13 @@ uint16_t TileSet::autotile_get_bitmask(int p_id, Vector2 p_coord) {
 	return tile_map[p_id].autotile_data.flags[p_coord];
 }
 
-const Map<Vector2, uint16_t> &TileSet::autotile_get_bitmask_map(int p_id) {
+const Map<Vector2, uint32_t> &TileSet::autotile_get_bitmask_map(int p_id) {
 
-	static Map<Vector2, uint16_t> dummy;
-	static Map<Vector2, uint16_t> dummy_atlas;
+	static Map<Vector2, uint32_t> dummy;
+	static Map<Vector2, uint32_t> dummy_atlas;
 	ERR_FAIL_COND_V(!tile_map.has(p_id), dummy);
 	if (tile_get_tile_mode(p_id) == ATLAS_TILE) {
-		dummy_atlas = Map<Vector2, uint16_t>();
+		dummy_atlas = Map<Vector2, uint32_t>();
 		Rect2 region = tile_get_region(p_id);
 		Size2 size = autotile_get_size(p_id);
 		float spacing = autotile_get_spacing(p_id);
@@ -600,22 +600,49 @@ Vector2 TileSet::autotile_get_subtile_for_bitmask(int p_id, uint16_t p_bitmask,
 	}
 
 	List<Vector2> coords;
-	uint16_t mask;
-	for (Map<Vector2, uint16_t>::Element *E = tile_map[p_id].autotile_data.flags.front(); E; E = E->next()) {
+	List<uint32_t> priorities;
+	uint32_t priority_sum = 0;
+	uint32_t mask;
+	uint16_t mask_;
+	uint16_t mask_ignore;
+	for (Map<Vector2, uint32_t>::Element *E = tile_map[p_id].autotile_data.flags.front(); E; E = E->next()) {
 		mask = E->get();
 		if (tile_map[p_id].autotile_data.bitmask_mode == BITMASK_2X2) {
-			mask &= (BIND_BOTTOMLEFT | BIND_BOTTOMRIGHT | BIND_TOPLEFT | BIND_TOPRIGHT);
+			mask |= (BIND_IGNORE_TOP | BIND_IGNORE_LEFT | BIND_IGNORE_CENTER | BIND_IGNORE_RIGHT | BIND_IGNORE_BOTTOM);
 		}
-		if (mask == p_bitmask) {
-			for (int i = 0; i < autotile_get_subtile_priority(p_id, E->key()); i++) {
-				coords.push_back(E->key());
-			}
+
+		mask_ = mask & 0xFFFF;
+		mask_ignore = mask >> 16;
+
+		if (((mask_ & (~mask_ignore)) == (p_bitmask & (~mask_ignore))) && (((~mask_) | mask_ignore) == ((~p_bitmask) | mask_ignore))) {
+			uint32_t priority = autotile_get_subtile_priority(p_id, E->key());
+			priority_sum += priority;
+			priorities.push_back(priority);
+			coords.push_back(E->key());
 		}
 	}
+
 	if (coords.size() == 0) {
 		return autotile_get_icon_coordinate(p_id);
 	} else {
-		return coords[Math::rand() % coords.size()];
+		uint32_t picked_value = Math::rand() % priority_sum;
+		uint32_t upper_bound;
+		uint32_t lower_bound = 0;
+		Vector2 result = coords.front()->get();
+		List<Vector2>::Element *coords_E = coords.front();
+		List<uint32_t>::Element *priorities_E = priorities.front();
+		while (priorities_E) {
+			upper_bound = lower_bound + priorities_E->get();
+			if (lower_bound <= picked_value && picked_value < upper_bound) {
+				result = coords_E->get();
+				break;
+			}
+			lower_bound = upper_bound;
+			priorities_E = priorities_E->next();
+			coords_E = coords_E->next();
+		}
+
+		return result;
 	}
 }
 
diff --git a/scene/resources/tile_set.h b/scene/resources/tile_set.h
index fac48243d0..fb84cee218 100644
--- a/scene/resources/tile_set.h
+++ b/scene/resources/tile_set.h
@@ -72,7 +72,17 @@ public:
 		BIND_RIGHT = 32,
 		BIND_BOTTOMLEFT = 64,
 		BIND_BOTTOM = 128,
-		BIND_BOTTOMRIGHT = 256
+		BIND_BOTTOMRIGHT = 256,
+
+		BIND_IGNORE_TOPLEFT = 1 << 16,
+		BIND_IGNORE_TOP = 1 << 17,
+		BIND_IGNORE_TOPRIGHT = 1 << 18,
+		BIND_IGNORE_LEFT = 1 << 19,
+		BIND_IGNORE_CENTER = 1 << 20,
+		BIND_IGNORE_RIGHT = 1 << 21,
+		BIND_IGNORE_BOTTOMLEFT = 1 << 22,
+		BIND_IGNORE_BOTTOM = 1 << 23,
+		BIND_IGNORE_BOTTOMRIGHT = 1 << 24
 	};
 
 	enum TileMode {
@@ -86,7 +96,7 @@ public:
 		Size2 size;
 		int spacing;
 		Vector2 icon_coord;
-		Map<Vector2, uint16_t> flags;
+		Map<Vector2, uint32_t> flags;
 		Map<Vector2, Ref<OccluderPolygon2D> > occluder_map;
 		Map<Vector2, Ref<NavigationPolygon> > navpoly_map;
 		Map<Vector2, int> priority_map;
@@ -181,9 +191,9 @@ public:
 	int autotile_get_z_index(int p_id, const Vector2 &p_coord);
 	const Map<Vector2, int> &autotile_get_z_index_map(int p_id) const;
 
-	void autotile_set_bitmask(int p_id, Vector2 p_coord, uint16_t p_flag);
-	uint16_t autotile_get_bitmask(int p_id, Vector2 p_coord);
-	const Map<Vector2, uint16_t> &autotile_get_bitmask_map(int p_id);
+	void autotile_set_bitmask(int p_id, Vector2 p_coord, uint32_t p_flag);
+	uint32_t autotile_get_bitmask(int p_id, Vector2 p_coord);
+	const Map<Vector2, uint32_t> &autotile_get_bitmask_map(int p_id);
 	Vector2 autotile_get_subtile_for_bitmask(int p_id, uint16_t p_bitmask, const Node *p_tilemap_node = NULL, const Vector2 &p_tile_location = Vector2());
 
 	void tile_set_shape(int p_id, int p_shape_id, const Ref<Shape2D> &p_shape);
diff --git a/scene/resources/visual_shader.cpp b/scene/resources/visual_shader.cpp
index 4e5909eb2e..b8f21948c3 100644
--- a/scene/resources/visual_shader.cpp
+++ b/scene/resources/visual_shader.cpp
@@ -240,6 +240,9 @@ bool VisualShader::can_connect_nodes(Type p_type, int p_from_node, int p_from_po
 	if (!g->nodes.has(p_from_node))
 		return false;
 
+	if (p_from_node == p_to_node)
+		return false;
+
 	if (p_from_port < 0 || p_from_port >= g->nodes[p_from_node].node->get_output_port_count())
 		return false;
 
@@ -252,7 +255,7 @@ bool VisualShader::can_connect_nodes(Type p_type, int p_from_node, int p_from_po
 	VisualShaderNode::PortType from_port_type = g->nodes[p_from_node].node->get_output_port_type(p_from_port);
 	VisualShaderNode::PortType to_port_type = g->nodes[p_to_node].node->get_input_port_type(p_to_port);
 
-	if (MAX(0, from_port_type - 1) != (MAX(0, to_port_type - 1))) {
+	if (MAX(0, from_port_type - 2) != (MAX(0, to_port_type - 2))) {
 		return false;
 	}
 
@@ -278,8 +281,8 @@ Error VisualShader::connect_nodes(Type p_type, int p_from_node, int p_from_port,
 	VisualShaderNode::PortType from_port_type = g->nodes[p_from_node].node->get_output_port_type(p_from_port);
 	VisualShaderNode::PortType to_port_type = g->nodes[p_to_node].node->get_input_port_type(p_to_port);
 
-	if (MAX(0, from_port_type - 1) != (MAX(0, to_port_type - 1))) {
-		ERR_EXPLAIN("Incompatible port types (scalar/vec with transform");
+	if (MAX(0, from_port_type - 2) != (MAX(0, to_port_type - 2))) {
+		ERR_EXPLAIN("Incompatible port types (scalar/vec/bool with transform");
 		ERR_FAIL_V(ERR_INVALID_PARAMETER)
 		return ERR_INVALID_PARAMETER;
 	}
@@ -456,6 +459,8 @@ String VisualShader::generate_preview_shader(Type p_type, int p_node, int p_port
 
 	if (node->get_output_port_type(p_port) == VisualShaderNode::PORT_TYPE_SCALAR) {
 		code += "\tCOLOR.rgb = vec3( n_out" + itos(p_node) + "p" + itos(p_port) + " );\n";
+	} else if (node->get_output_port_type(p_port) == VisualShaderNode::PORT_TYPE_BOOLEAN) {
+		code += "\tCOLOR.rgb = vec3( n_out" + itos(p_node) + "p" + itos(p_port) + " ? 1.0 : 0.0 );\n";
 	} else {
 		code += "\tCOLOR.rgb = n_out" + itos(p_node) + "p" + itos(p_port) + ";\n";
 	}
@@ -779,6 +784,14 @@ Error VisualShader::_write_node(Type type, StringBuilder &global_code, StringBui
 				inputs[i] = "dot(" + src_var + ",vec3(0.333333,0.333333,0.333333))";
 			} else if (in_type == VisualShaderNode::PORT_TYPE_VECTOR && out_type == VisualShaderNode::PORT_TYPE_SCALAR) {
 				inputs[i] = "vec3(" + src_var + ")";
+			} else if (in_type == VisualShaderNode::PORT_TYPE_BOOLEAN && out_type == VisualShaderNode::PORT_TYPE_VECTOR) {
+				inputs[i] = "all(bvec3(" + src_var + "))";
+			} else if (in_type == VisualShaderNode::PORT_TYPE_BOOLEAN && out_type == VisualShaderNode::PORT_TYPE_SCALAR) {
+				inputs[i] = src_var + ">0.0?true:false";
+			} else if (in_type == VisualShaderNode::PORT_TYPE_SCALAR && out_type == VisualShaderNode::PORT_TYPE_BOOLEAN) {
+				inputs[i] = src_var + "?1.0:0.0";
+			} else if (in_type == VisualShaderNode::PORT_TYPE_VECTOR && out_type == VisualShaderNode::PORT_TYPE_BOOLEAN) {
+				inputs[i] = "vec3(" + src_var + "?1.0:0.0)";
 			}
 		} else {
 
@@ -787,6 +800,10 @@ Error VisualShader::_write_node(Type type, StringBuilder &global_code, StringBui
 				float val = defval;
 				inputs[i] = "n_in" + itos(node) + "p" + itos(i);
 				code += "\tfloat " + inputs[i] + " = " + vformat("%.5f", val) + ";\n";
+			} else if (defval.get_type() == Variant::BOOL) {
+				bool val = defval;
+				inputs[i] = "n_in" + itos(node) + "p" + itos(i);
+				code += "\nbool " + inputs[i] + " = " + (val ? "true" : "false") + ";\n";
 			} else if (defval.get_type() == Variant::VECTOR3) {
 				Vector3 val = defval;
 				inputs[i] = "n_in" + itos(node) + "p" + itos(i);
@@ -823,8 +840,10 @@ Error VisualShader::_write_node(Type type, StringBuilder &global_code, StringBui
 		switch (vsnode->get_output_port_type(i)) {
 			case VisualShaderNode::PORT_TYPE_SCALAR: code += String() + "\tfloat " + outputs[i] + ";\n"; break;
 			case VisualShaderNode::PORT_TYPE_VECTOR: code += String() + "\tvec3 " + outputs[i] + ";\n"; break;
+			case VisualShaderNode::PORT_TYPE_BOOLEAN: code += String() + "\tbool " + outputs[i] + ";\n"; break;
 			case VisualShaderNode::PORT_TYPE_TRANSFORM: code += String() + "\tmat4 " + outputs[i] + ";\n"; break;
-			default: {}
+			default: {
+			}
 		}
 	}
 
@@ -1262,6 +1281,11 @@ String VisualShaderNodeInput::generate_code(Shader::Mode p_mode, VisualShader::T
 				case PORT_TYPE_TRANSFORM: {
 					code = "\t" + p_output_vars[0] + " = mat4( vec4(1.0,0.0,0.0,0.0), vec4(0.0,1.0,0.0,0.0), vec4(0.0,0.0,1.0,0.0), vec4(0.0,0.0,0.0,1.0) );\n";
 				} break; //default (none found) is scalar
+				case PORT_TYPE_BOOLEAN: {
+					code = "\t" + p_output_vars[0] + " = false;\n";
+				} break;
+				default:
+					break;
 			}
 		}
 
diff --git a/scene/resources/visual_shader.h b/scene/resources/visual_shader.h
index 4792038351..cf10de9bf5 100644
--- a/scene/resources/visual_shader.h
+++ b/scene/resources/visual_shader.h
@@ -175,7 +175,9 @@ public:
 	enum PortType {
 		PORT_TYPE_SCALAR,
 		PORT_TYPE_VECTOR,
+		PORT_TYPE_BOOLEAN,
 		PORT_TYPE_TRANSFORM,
+		PORT_TYPE_COLOR // just a hint for node tree icons, do not use it as actual port type !
 	};
 
 	virtual String get_caption() const = 0;
diff --git a/scene/resources/visual_shader_nodes.cpp b/scene/resources/visual_shader_nodes.cpp
index e47069d723..9b8037965b 100644
--- a/scene/resources/visual_shader_nodes.cpp
+++ b/scene/resources/visual_shader_nodes.cpp
@@ -88,6 +88,67 @@ VisualShaderNodeScalarConstant::VisualShaderNodeScalarConstant() {
 	constant = 0;
 }
 
+////////////// Boolean
+
+String VisualShaderNodeBooleanConstant::get_caption() const {
+	return "Boolean";
+}
+
+int VisualShaderNodeBooleanConstant::get_input_port_count() const {
+	return 0;
+}
+
+VisualShaderNodeBooleanConstant::PortType VisualShaderNodeBooleanConstant::get_input_port_type(int p_port) const {
+	return PORT_TYPE_BOOLEAN;
+}
+
+String VisualShaderNodeBooleanConstant::get_input_port_name(int p_port) const {
+	return String();
+}
+
+int VisualShaderNodeBooleanConstant::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeBooleanConstant::PortType VisualShaderNodeBooleanConstant::get_output_port_type(int p_port) const {
+	return PORT_TYPE_BOOLEAN;
+}
+
+String VisualShaderNodeBooleanConstant::get_output_port_name(int p_port) const {
+	return ""; //no output port means the editor will be used as port
+}
+
+String VisualShaderNodeBooleanConstant::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = " + (constant ? "true" : "false") + ";\n";
+}
+
+void VisualShaderNodeBooleanConstant::set_constant(bool p_value) {
+	constant = p_value;
+	emit_changed();
+}
+
+bool VisualShaderNodeBooleanConstant::get_constant() const {
+	return constant;
+}
+
+Vector<StringName> VisualShaderNodeBooleanConstant::get_editable_properties() const {
+	Vector<StringName> props;
+	props.push_back("constant");
+	return props;
+}
+
+void VisualShaderNodeBooleanConstant::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_constant", "value"), &VisualShaderNodeBooleanConstant::set_constant);
+	ClassDB::bind_method(D_METHOD("get_constant"), &VisualShaderNodeBooleanConstant::get_constant);
+
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "constant"), "set_constant", "get_constant");
+}
+
+VisualShaderNodeBooleanConstant::VisualShaderNodeBooleanConstant() {
+	constant = false;
+}
+
 ////////////// Color
 
 String VisualShaderNodeColorConstant::get_caption() const {
@@ -666,6 +727,7 @@ String VisualShaderNodeScalarOp::generate_code(Shader::Mode p_mode, VisualShader
 		case OP_MAX: code += "max( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
 		case OP_MIN: code += "min( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
 		case OP_ATAN2: code += "atan( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
+		case OP_STEP: code += "step( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
 	}
 
 	return code;
@@ -693,7 +755,7 @@ void VisualShaderNodeScalarOp::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_operator", "op"), &VisualShaderNodeScalarOp::set_operator);
 	ClassDB::bind_method(D_METHOD("get_operator"), &VisualShaderNodeScalarOp::get_operator);
 
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "operator", PROPERTY_HINT_ENUM, "Add,Sub,Multiply,Divide,Remainder,Power,Max,Min,Atan2"), "set_operator", "get_operator");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "operator", PROPERTY_HINT_ENUM, "Add,Sub,Multiply,Divide,Remainder,Power,Max,Min,Atan2,Step"), "set_operator", "get_operator");
 
 	BIND_ENUM_CONSTANT(OP_ADD);
 	BIND_ENUM_CONSTANT(OP_SUB);
@@ -704,6 +766,7 @@ void VisualShaderNodeScalarOp::_bind_methods() {
 	BIND_ENUM_CONSTANT(OP_MAX);
 	BIND_ENUM_CONSTANT(OP_MIN);
 	BIND_ENUM_CONSTANT(OP_ATAN2);
+	BIND_ENUM_CONSTANT(OP_STEP);
 }
 
 VisualShaderNodeScalarOp::VisualShaderNodeScalarOp() {
@@ -752,6 +815,9 @@ String VisualShaderNodeVectorOp::generate_code(Shader::Mode p_mode, VisualShader
 		case OP_MAX: code += "max( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
 		case OP_MIN: code += "min( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
 		case OP_CROSS: code += "cross( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
+		case OP_ATAN2: code += "atan( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
+		case OP_REFLECT: code += "reflect( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
+		case OP_STEP: code += "step( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n"; break;
 	}
 
 	return code;
@@ -779,7 +845,7 @@ void VisualShaderNodeVectorOp::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_operator", "op"), &VisualShaderNodeVectorOp::set_operator);
 	ClassDB::bind_method(D_METHOD("get_operator"), &VisualShaderNodeVectorOp::get_operator);
 
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "operator", PROPERTY_HINT_ENUM, "Add,Sub,Multiply,Divide,Remainder,Power,Max,Min,Cross"), "set_operator", "get_operator");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "operator", PROPERTY_HINT_ENUM, "Add,Sub,Multiply,Divide,Remainder,Power,Max,Min,Cross,Atan2,Reflect,Step"), "set_operator", "get_operator");
 
 	BIND_ENUM_CONSTANT(OP_ADD);
 	BIND_ENUM_CONSTANT(OP_SUB);
@@ -790,6 +856,9 @@ void VisualShaderNodeVectorOp::_bind_methods() {
 	BIND_ENUM_CONSTANT(OP_MAX);
 	BIND_ENUM_CONSTANT(OP_MIN);
 	BIND_ENUM_CONSTANT(OP_CROSS);
+	BIND_ENUM_CONSTANT(OP_ATAN2);
+	BIND_ENUM_CONSTANT(OP_REFLECT);
+	BIND_ENUM_CONSTANT(OP_STEP);
 }
 
 VisualShaderNodeVectorOp::VisualShaderNodeVectorOp() {
@@ -976,8 +1045,12 @@ String VisualShaderNodeTransformMult::generate_code(Shader::Mode p_mode, VisualS
 
 	if (op == OP_AxB) {
 		return "\t" + p_output_vars[0] + " = " + p_input_vars[0] + " * " + p_input_vars[1] + ";\n";
-	} else {
+	} else if (op == OP_BxA) {
 		return "\t" + p_output_vars[0] + " = " + p_input_vars[1] + " * " + p_input_vars[0] + ";\n";
+	} else if (op == OP_AxB_COMP) {
+		return "\t" + p_output_vars[0] + " = matrixCompMult( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n";
+	} else {
+		return "\t" + p_output_vars[0] + " = matrixCompMult( " + p_input_vars[1] + " , " + p_input_vars[0] + " );\n";
 	}
 }
 
@@ -1003,10 +1076,12 @@ void VisualShaderNodeTransformMult::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_operator", "op"), &VisualShaderNodeTransformMult::set_operator);
 	ClassDB::bind_method(D_METHOD("get_operator"), &VisualShaderNodeTransformMult::get_operator);
 
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "operator", PROPERTY_HINT_ENUM, "A x B,B x A"), "set_operator", "get_operator");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "operator", PROPERTY_HINT_ENUM, "A x B,B x A,A x B(per component),B x A(per component)"), "set_operator", "get_operator");
 
 	BIND_ENUM_CONSTANT(OP_AxB);
 	BIND_ENUM_CONSTANT(OP_BxA);
+	BIND_ENUM_CONSTANT(OP_AxB_COMP);
+	BIND_ENUM_CONSTANT(OP_BxA_COMP);
 }
 
 VisualShaderNodeTransformMult::VisualShaderNodeTransformMult() {
@@ -1117,7 +1192,7 @@ String VisualShaderNodeScalarFunc::get_output_port_name(int p_port) const {
 
 String VisualShaderNodeScalarFunc::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
 
-	static const char *scalar_func_id[FUNC_NEGATE + 1] = {
+	static const char *scalar_func_id[FUNC_TRUNC + 1] = {
 		"sin($)",
 		"cos($)",
 		"tan($)",
@@ -1138,6 +1213,17 @@ String VisualShaderNodeScalarFunc::generate_code(Shader::Mode p_mode, VisualShad
 		"fract($)",
 		"min(max($,0.0),1.0)",
 		"-($)",
+		"acosh($)",
+		"asinh($)",
+		"atanh($)",
+		"degrees($)",
+		"exp2($)",
+		"inversesqrt($)",
+		"log2($)",
+		"radians($)",
+		"1.0/($)",
+		"roundEven($)",
+		"trunc($)"
 	};
 
 	return "\t" + p_output_vars[0] + " = " + String(scalar_func_id[func]).replace("$", p_input_vars[0]) + ";\n";
@@ -1165,7 +1251,7 @@ void VisualShaderNodeScalarFunc::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_function", "func"), &VisualShaderNodeScalarFunc::set_function);
 	ClassDB::bind_method(D_METHOD("get_function"), &VisualShaderNodeScalarFunc::get_function);
 
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Sin,Cos,Tan,ASin,ACos,ATan,SinH,CosH,TanH,Log,Exp,Sqrt,Abs,Sign,Floor,Round,Ceil,Frac,Saturate,Negate"), "set_function", "get_function");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Sin,Cos,Tan,ASin,ACos,ATan,SinH,CosH,TanH,Log,Exp,Sqrt,Abs,Sign,Floor,Round,Ceil,Frac,Saturate,Negate,ACosH,ASinH,ATanH,Degrees,Exp2,InverseSqrt,Log2,Radians,Reciprocal,RoundEven,Trunc"), "set_function", "get_function");
 
 	BIND_ENUM_CONSTANT(FUNC_SIN);
 	BIND_ENUM_CONSTANT(FUNC_COS);
@@ -1187,6 +1273,17 @@ void VisualShaderNodeScalarFunc::_bind_methods() {
 	BIND_ENUM_CONSTANT(FUNC_FRAC);
 	BIND_ENUM_CONSTANT(FUNC_SATURATE);
 	BIND_ENUM_CONSTANT(FUNC_NEGATE);
+	BIND_ENUM_CONSTANT(FUNC_ACOSH);
+	BIND_ENUM_CONSTANT(FUNC_ASINH);
+	BIND_ENUM_CONSTANT(FUNC_ATANH);
+	BIND_ENUM_CONSTANT(FUNC_DEGREES);
+	BIND_ENUM_CONSTANT(FUNC_EXP2);
+	BIND_ENUM_CONSTANT(FUNC_INVERSE_SQRT);
+	BIND_ENUM_CONSTANT(FUNC_LOG2);
+	BIND_ENUM_CONSTANT(FUNC_RADIANS);
+	BIND_ENUM_CONSTANT(FUNC_RECIPROCAL);
+	BIND_ENUM_CONSTANT(FUNC_ROUNDEVEN);
+	BIND_ENUM_CONSTANT(FUNC_TRUNC);
 }
 
 VisualShaderNodeScalarFunc::VisualShaderNodeScalarFunc() {
@@ -1222,13 +1319,41 @@ String VisualShaderNodeVectorFunc::get_output_port_name(int p_port) const {
 
 String VisualShaderNodeVectorFunc::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
 
-	static const char *vec_func_id[FUNC_HSV2RGB + 1] = {
+	static const char *vec_func_id[FUNC_TRUNC + 1] = {
 		"normalize($)",
 		"max(min($,vec3(1.0)),vec3(0.0))",
 		"-($)",
 		"1.0/($)",
 		"",
 		"",
+		"abs($)",
+		"acos($)",
+		"acosh($)",
+		"asin($)",
+		"asinh($)",
+		"atan($)",
+		"atanh($)",
+		"ceil($)",
+		"cos($)",
+		"cosh($)",
+		"degrees($)",
+		"exp($)",
+		"exp2($)",
+		"floor($)",
+		"fract($)",
+		"inversesqrt($)",
+		"log($)",
+		"log2($)",
+		"radians($)",
+		"round($)",
+		"roundEven($)",
+		"sign($)",
+		"sin($)",
+		"sinh($)",
+		"sqrt($)",
+		"tan($)",
+		"tanh($)",
+		"trunc($)"
 	};
 
 	String code;
@@ -1280,7 +1405,7 @@ void VisualShaderNodeVectorFunc::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_function", "func"), &VisualShaderNodeVectorFunc::set_function);
 	ClassDB::bind_method(D_METHOD("get_function"), &VisualShaderNodeVectorFunc::get_function);
 
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Normalize,Saturate,Negate,Reciprocal,RGB2HSV,HSV2RGB"), "set_function", "get_function");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Normalize,Saturate,Negate,Reciprocal,RGB2HSV,HSV2RGB,Abs,ACos,ACosH,ASin,ASinH,ATan,ATanH,Ceil,Cos,CosH,Degrees,Exp,Exp2,Floor,Frac,InverseSqrt,Log,Log2,Radians,Round,RoundEven,Sign,Sin,SinH,Sqrt,Tan,TanH,Trunc"), "set_function", "get_function");
 
 	BIND_ENUM_CONSTANT(FUNC_NORMALIZE);
 	BIND_ENUM_CONSTANT(FUNC_SATURATE);
@@ -1288,6 +1413,34 @@ void VisualShaderNodeVectorFunc::_bind_methods() {
 	BIND_ENUM_CONSTANT(FUNC_RECIPROCAL);
 	BIND_ENUM_CONSTANT(FUNC_RGB2HSV);
 	BIND_ENUM_CONSTANT(FUNC_HSV2RGB);
+	BIND_ENUM_CONSTANT(FUNC_ABS);
+	BIND_ENUM_CONSTANT(FUNC_ACOS);
+	BIND_ENUM_CONSTANT(FUNC_ACOSH);
+	BIND_ENUM_CONSTANT(FUNC_ASIN);
+	BIND_ENUM_CONSTANT(FUNC_ASINH);
+	BIND_ENUM_CONSTANT(FUNC_ATAN);
+	BIND_ENUM_CONSTANT(FUNC_ATANH);
+	BIND_ENUM_CONSTANT(FUNC_CEIL);
+	BIND_ENUM_CONSTANT(FUNC_COS);
+	BIND_ENUM_CONSTANT(FUNC_COSH);
+	BIND_ENUM_CONSTANT(FUNC_DEGREES);
+	BIND_ENUM_CONSTANT(FUNC_EXP);
+	BIND_ENUM_CONSTANT(FUNC_EXP2);
+	BIND_ENUM_CONSTANT(FUNC_FLOOR);
+	BIND_ENUM_CONSTANT(FUNC_FRAC);
+	BIND_ENUM_CONSTANT(FUNC_INVERSE_SQRT);
+	BIND_ENUM_CONSTANT(FUNC_LOG);
+	BIND_ENUM_CONSTANT(FUNC_LOG2);
+	BIND_ENUM_CONSTANT(FUNC_RADIANS);
+	BIND_ENUM_CONSTANT(FUNC_ROUND);
+	BIND_ENUM_CONSTANT(FUNC_ROUNDEVEN);
+	BIND_ENUM_CONSTANT(FUNC_SIGN);
+	BIND_ENUM_CONSTANT(FUNC_SIN);
+	BIND_ENUM_CONSTANT(FUNC_SINH);
+	BIND_ENUM_CONSTANT(FUNC_SQRT);
+	BIND_ENUM_CONSTANT(FUNC_TAN);
+	BIND_ENUM_CONSTANT(FUNC_TANH);
+	BIND_ENUM_CONSTANT(FUNC_TRUNC);
 }
 
 VisualShaderNodeVectorFunc::VisualShaderNodeVectorFunc() {
@@ -1295,6 +1448,172 @@ VisualShaderNodeVectorFunc::VisualShaderNodeVectorFunc() {
 	set_input_port_default_value(0, Vector3());
 }
 
+////////////// ColorFunc
+
+String VisualShaderNodeColorFunc::get_caption() const {
+	return "ColorFunc";
+}
+
+int VisualShaderNodeColorFunc::get_input_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeColorFunc::PortType VisualShaderNodeColorFunc::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeColorFunc::get_input_port_name(int p_port) const {
+	return "";
+}
+
+int VisualShaderNodeColorFunc::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeColorFunc::PortType VisualShaderNodeColorFunc::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeColorFunc::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeColorFunc::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+
+	String code;
+
+	switch (func) {
+		case FUNC_GRAYSCALE:
+			code += "\t{\n";
+			code += "\t\tvec3 c = " + p_input_vars[0] + ";\n";
+			code += "\t\tfloat max1 = max(c.r, c.g);\n";
+			code += "\t\tfloat max2 = max(max1, c.b);\n";
+			code += "\t\tfloat max3 = max(max1, max2);\n";
+			code += "\t\t" + p_output_vars[0] + " = vec3(max3, max3, max3);\n";
+			code += "\t}\n";
+			break;
+		case FUNC_SEPIA:
+			code += "\t{\n";
+			code += "\t\tvec3 c = " + p_input_vars[0] + ";\n";
+			code += "\t\tfloat r = (c.r * .393) + (c.g *.769) + (c.b * .189);\n";
+			code += "\t\tfloat g = (c.r * .349) + (c.g *.686) + (c.b * .168);\n";
+			code += "\t\tfloat b = (c.r * .272) + (c.g *.534) + (c.b * .131);\n";
+			code += "\t\t" + p_output_vars[0] + " = vec3(r, g, b);\n";
+			code += "\t}\n";
+			break;
+	}
+
+	return code;
+}
+
+void VisualShaderNodeColorFunc::set_function(Function p_func) {
+
+	func = p_func;
+	emit_changed();
+}
+
+VisualShaderNodeColorFunc::Function VisualShaderNodeColorFunc::get_function() const {
+
+	return func;
+}
+
+Vector<StringName> VisualShaderNodeColorFunc::get_editable_properties() const {
+	Vector<StringName> props;
+	props.push_back("function");
+	return props;
+}
+
+void VisualShaderNodeColorFunc::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_function", "func"), &VisualShaderNodeColorFunc::set_function);
+	ClassDB::bind_method(D_METHOD("get_function"), &VisualShaderNodeColorFunc::get_function);
+
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Grayscale,Sepia"), "set_function", "get_function");
+
+	BIND_ENUM_CONSTANT(FUNC_GRAYSCALE);
+	BIND_ENUM_CONSTANT(FUNC_SEPIA);
+}
+
+VisualShaderNodeColorFunc::VisualShaderNodeColorFunc() {
+	func = FUNC_GRAYSCALE;
+	set_input_port_default_value(0, Vector3());
+}
+
+////////////// Transform Func
+
+String VisualShaderNodeTransformFunc::get_caption() const {
+	return "TransformFunc";
+}
+
+int VisualShaderNodeTransformFunc::get_input_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeTransformFunc::PortType VisualShaderNodeTransformFunc::get_input_port_type(int p_port) const {
+	return PORT_TYPE_TRANSFORM;
+}
+
+String VisualShaderNodeTransformFunc::get_input_port_name(int p_port) const {
+	return "";
+}
+
+int VisualShaderNodeTransformFunc::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeTransformFunc::PortType VisualShaderNodeTransformFunc::get_output_port_type(int p_port) const {
+	return PORT_TYPE_TRANSFORM;
+}
+
+String VisualShaderNodeTransformFunc::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeTransformFunc::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+
+	static const char *funcs[FUNC_TRANSPOSE + 1] = {
+		"inverse($)",
+		"transpose($)"
+	};
+
+	String code;
+	code += "\t" + p_output_vars[0] + "=" + String(funcs[func]).replace("$", p_input_vars[0]) + ";\n";
+	return code;
+}
+
+void VisualShaderNodeTransformFunc::set_function(Function p_func) {
+
+	func = p_func;
+	emit_changed();
+}
+
+VisualShaderNodeTransformFunc::Function VisualShaderNodeTransformFunc::get_function() const {
+
+	return func;
+}
+
+Vector<StringName> VisualShaderNodeTransformFunc::get_editable_properties() const {
+	Vector<StringName> props;
+	props.push_back("function");
+	return props;
+}
+
+void VisualShaderNodeTransformFunc::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_function", "func"), &VisualShaderNodeTransformFunc::set_function);
+	ClassDB::bind_method(D_METHOD("get_function"), &VisualShaderNodeTransformFunc::get_function);
+
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Inverse,Transpose"), "set_function", "get_function");
+
+	BIND_ENUM_CONSTANT(FUNC_INVERSE);
+	BIND_ENUM_CONSTANT(FUNC_TRANSPOSE);
+}
+
+VisualShaderNodeTransformFunc::VisualShaderNodeTransformFunc() {
+	func = FUNC_INVERSE;
+	set_input_port_default_value(0, Transform());
+}
+
 ////////////// Dot Product
 
 String VisualShaderNodeDotProduct::get_caption() const {
@@ -1364,10 +1683,674 @@ VisualShaderNodeVectorLen::VisualShaderNodeVectorLen() {
 	set_input_port_default_value(0, Vector3());
 }
 
+////////////// Determinant
+
+String VisualShaderNodeDeterminant::get_caption() const {
+	return "Determinant";
+}
+
+int VisualShaderNodeDeterminant::get_input_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeScalarClamp::PortType VisualShaderNodeDeterminant::get_input_port_type(int p_port) const {
+	return PORT_TYPE_TRANSFORM;
+}
+
+String VisualShaderNodeDeterminant::get_input_port_name(int p_port) const {
+	return "";
+}
+
+int VisualShaderNodeDeterminant::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeDeterminant::PortType VisualShaderNodeDeterminant::get_output_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeDeterminant::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeDeterminant::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = determinant( " + p_input_vars[0] + " );\n";
+}
+
+VisualShaderNodeDeterminant::VisualShaderNodeDeterminant() {
+	set_input_port_default_value(0, Transform());
+}
+
+////////////// Scalar Derivative Function
+
+String VisualShaderNodeScalarDerivativeFunc::get_caption() const {
+	return "ScalarDerivativeFunc";
+}
+
+int VisualShaderNodeScalarDerivativeFunc::get_input_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeScalarDerivativeFunc::PortType VisualShaderNodeScalarDerivativeFunc::get_input_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeScalarDerivativeFunc::get_input_port_name(int p_port) const {
+	return "";
+}
+
+int VisualShaderNodeScalarDerivativeFunc::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeScalarDerivativeFunc::PortType VisualShaderNodeScalarDerivativeFunc::get_output_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeScalarDerivativeFunc::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeScalarDerivativeFunc::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+
+	static const char *funcs[FUNC_Y + 1] = {
+		"fwidth($)",
+		"dFdx($)",
+		"dFdy($)"
+	};
+
+	String code;
+	code += "\t" + p_output_vars[0] + "=" + String(funcs[func]).replace("$", p_input_vars[0]) + ";\n";
+	return code;
+}
+
+void VisualShaderNodeScalarDerivativeFunc::set_function(Function p_func) {
+
+	func = p_func;
+	emit_changed();
+}
+
+VisualShaderNodeScalarDerivativeFunc::Function VisualShaderNodeScalarDerivativeFunc::get_function() const {
+
+	return func;
+}
+
+Vector<StringName> VisualShaderNodeScalarDerivativeFunc::get_editable_properties() const {
+	Vector<StringName> props;
+	props.push_back("function");
+	return props;
+}
+
+void VisualShaderNodeScalarDerivativeFunc::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_function", "func"), &VisualShaderNodeScalarDerivativeFunc::set_function);
+	ClassDB::bind_method(D_METHOD("get_function"), &VisualShaderNodeScalarDerivativeFunc::get_function);
+
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Sum,X,Y"), "set_function", "get_function");
+
+	BIND_ENUM_CONSTANT(FUNC_SUM);
+	BIND_ENUM_CONSTANT(FUNC_X);
+	BIND_ENUM_CONSTANT(FUNC_Y);
+}
+
+VisualShaderNodeScalarDerivativeFunc::VisualShaderNodeScalarDerivativeFunc() {
+	func = FUNC_SUM;
+	set_input_port_default_value(0, 0.0);
+}
+
+////////////// Vector Derivative Function
+
+String VisualShaderNodeVectorDerivativeFunc::get_caption() const {
+	return "VectorDerivativeFunc";
+}
+
+int VisualShaderNodeVectorDerivativeFunc::get_input_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorDerivativeFunc::PortType VisualShaderNodeVectorDerivativeFunc::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorDerivativeFunc::get_input_port_name(int p_port) const {
+	return "";
+}
+
+int VisualShaderNodeVectorDerivativeFunc::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeScalarDerivativeFunc::PortType VisualShaderNodeVectorDerivativeFunc::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorDerivativeFunc::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorDerivativeFunc::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+
+	static const char *funcs[FUNC_Y + 1] = {
+		"fwidth($)",
+		"dFdx($)",
+		"dFdy($)"
+	};
+
+	String code;
+	code += "\t" + p_output_vars[0] + "=" + String(funcs[func]).replace("$", p_input_vars[0]) + ";\n";
+	return code;
+}
+
+void VisualShaderNodeVectorDerivativeFunc::set_function(Function p_func) {
+
+	func = p_func;
+	emit_changed();
+}
+
+VisualShaderNodeVectorDerivativeFunc::Function VisualShaderNodeVectorDerivativeFunc::get_function() const {
+
+	return func;
+}
+
+Vector<StringName> VisualShaderNodeVectorDerivativeFunc::get_editable_properties() const {
+	Vector<StringName> props;
+	props.push_back("function");
+	return props;
+}
+
+void VisualShaderNodeVectorDerivativeFunc::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_function", "func"), &VisualShaderNodeVectorDerivativeFunc::set_function);
+	ClassDB::bind_method(D_METHOD("get_function"), &VisualShaderNodeVectorDerivativeFunc::get_function);
+
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "function", PROPERTY_HINT_ENUM, "Sum,X,Y"), "set_function", "get_function");
+
+	BIND_ENUM_CONSTANT(FUNC_SUM);
+	BIND_ENUM_CONSTANT(FUNC_X);
+	BIND_ENUM_CONSTANT(FUNC_Y);
+}
+
+VisualShaderNodeVectorDerivativeFunc::VisualShaderNodeVectorDerivativeFunc() {
+	func = FUNC_SUM;
+	set_input_port_default_value(0, Vector3());
+}
+
+////////////// Scalar Clamp
+
+String VisualShaderNodeScalarClamp::get_caption() const {
+	return "ScalarClamp";
+}
+
+int VisualShaderNodeScalarClamp::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeScalarClamp::PortType VisualShaderNodeScalarClamp::get_input_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeScalarClamp::get_input_port_name(int p_port) const {
+	if (p_port == 0)
+		return "";
+	else if (p_port == 1)
+		return "min";
+	else if (p_port == 2)
+		return "max";
+	return "";
+}
+
+int VisualShaderNodeScalarClamp::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeScalarClamp::PortType VisualShaderNodeScalarClamp::get_output_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeScalarClamp::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeScalarClamp::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = clamp( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeScalarClamp::VisualShaderNodeScalarClamp() {
+	set_input_port_default_value(0, 0.0);
+	set_input_port_default_value(1, 0.0);
+	set_input_port_default_value(2, 1.0);
+}
+
+////////////// Vector Clamp
+
+String VisualShaderNodeVectorClamp::get_caption() const {
+	return "VectorClamp";
+}
+
+int VisualShaderNodeVectorClamp::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeVectorClamp::PortType VisualShaderNodeVectorClamp::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorClamp::get_input_port_name(int p_port) const {
+	if (p_port == 0)
+		return "";
+	else if (p_port == 1)
+		return "min";
+	else if (p_port == 2)
+		return "max";
+	return "";
+}
+
+int VisualShaderNodeVectorClamp::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorClamp::PortType VisualShaderNodeVectorClamp::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorClamp::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorClamp::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = clamp( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeVectorClamp::VisualShaderNodeVectorClamp() {
+	set_input_port_default_value(0, Vector3(0, 0, 0));
+	set_input_port_default_value(1, Vector3(0, 0, 0));
+	set_input_port_default_value(2, Vector3(1, 1, 1));
+}
+
+////////////// FaceForward
+
+String VisualShaderNodeFaceForward::get_caption() const {
+	return "FaceForward";
+}
+
+int VisualShaderNodeFaceForward::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeFaceForward::PortType VisualShaderNodeFaceForward::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeFaceForward::get_input_port_name(int p_port) const {
+	switch (p_port) {
+		case 0:
+			return "N";
+		case 1:
+			return "I";
+		case 2:
+			return "Nref";
+		default:
+			return "";
+	}
+}
+
+int VisualShaderNodeFaceForward::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeFaceForward::PortType VisualShaderNodeFaceForward::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeFaceForward::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeFaceForward::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = faceforward( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeFaceForward::VisualShaderNodeFaceForward() {
+	set_input_port_default_value(0, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(2, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Outer Product
+
+String VisualShaderNodeOuterProduct::get_caption() const {
+	return "OuterProduct";
+}
+
+int VisualShaderNodeOuterProduct::get_input_port_count() const {
+	return 2;
+}
+
+VisualShaderNodeFaceForward::PortType VisualShaderNodeOuterProduct::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeOuterProduct::get_input_port_name(int p_port) const {
+	switch (p_port) {
+		case 0:
+			return "c";
+		case 1:
+			return "r";
+		default:
+			return "";
+	}
+}
+
+int VisualShaderNodeOuterProduct::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeOuterProduct::PortType VisualShaderNodeOuterProduct::get_output_port_type(int p_port) const {
+	return PORT_TYPE_TRANSFORM;
+}
+
+String VisualShaderNodeOuterProduct::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeOuterProduct::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = outerProduct( " + p_input_vars[0] + ", " + p_input_vars[1] + " );\n";
+}
+
+VisualShaderNodeOuterProduct::VisualShaderNodeOuterProduct() {
+	set_input_port_default_value(0, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Vector-Scalar Step
+
+String VisualShaderNodeVectorScalarStep::get_caption() const {
+	return "VectorScalarStep";
+}
+
+int VisualShaderNodeVectorScalarStep::get_input_port_count() const {
+	return 2;
+}
+
+VisualShaderNodeVectorScalarStep::PortType VisualShaderNodeVectorScalarStep::get_input_port_type(int p_port) const {
+	if (p_port == 0) {
+		return PORT_TYPE_SCALAR;
+	}
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorScalarStep::get_input_port_name(int p_port) const {
+	if (p_port == 0)
+		return "edge";
+	else if (p_port == 1)
+		return "x";
+	return "";
+}
+
+int VisualShaderNodeVectorScalarStep::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorClamp::PortType VisualShaderNodeVectorScalarStep::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorScalarStep::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorScalarStep::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = step( " + p_input_vars[0] + ", " + p_input_vars[1] + " );\n";
+}
+
+VisualShaderNodeVectorScalarStep::VisualShaderNodeVectorScalarStep() {
+	set_input_port_default_value(0, 0.0);
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Scalar SmoothStep
+
+String VisualShaderNodeScalarSmoothStep::get_caption() const {
+	return "ScalarSmoothStep";
+}
+
+int VisualShaderNodeScalarSmoothStep::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeScalarSmoothStep::PortType VisualShaderNodeScalarSmoothStep::get_input_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeScalarSmoothStep::get_input_port_name(int p_port) const {
+	if (p_port == 0)
+		return "edge0";
+	else if (p_port == 1)
+		return "edge1";
+	else if (p_port == 2)
+		return "x";
+	return "";
+}
+
+int VisualShaderNodeScalarSmoothStep::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeScalarSmoothStep::PortType VisualShaderNodeScalarSmoothStep::get_output_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeScalarSmoothStep::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeScalarSmoothStep::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = smoothstep( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeScalarSmoothStep::VisualShaderNodeScalarSmoothStep() {
+	set_input_port_default_value(0, 0.0);
+	set_input_port_default_value(1, 0.0);
+	set_input_port_default_value(2, 0.0);
+}
+
+////////////// Vector SmoothStep
+
+String VisualShaderNodeVectorSmoothStep::get_caption() const {
+	return "VectorSmoothStep";
+}
+
+int VisualShaderNodeVectorSmoothStep::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeVectorSmoothStep::PortType VisualShaderNodeVectorSmoothStep::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorSmoothStep::get_input_port_name(int p_port) const {
+	if (p_port == 0)
+		return "edge0";
+	else if (p_port == 1)
+		return "edge1";
+	else if (p_port == 2)
+		return "x";
+	return "";
+}
+
+int VisualShaderNodeVectorSmoothStep::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorClamp::PortType VisualShaderNodeVectorSmoothStep::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorSmoothStep::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorSmoothStep::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = smoothstep( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeVectorSmoothStep::VisualShaderNodeVectorSmoothStep() {
+	set_input_port_default_value(0, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(2, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Vector-Scalar SmoothStep
+
+String VisualShaderNodeVectorScalarSmoothStep::get_caption() const {
+	return "VectorScalarSmoothStep";
+}
+
+int VisualShaderNodeVectorScalarSmoothStep::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeVectorScalarSmoothStep::PortType VisualShaderNodeVectorScalarSmoothStep::get_input_port_type(int p_port) const {
+	if (p_port == 0) {
+		return PORT_TYPE_SCALAR;
+	} else if (p_port == 1) {
+		return PORT_TYPE_SCALAR;
+	}
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorScalarSmoothStep::get_input_port_name(int p_port) const {
+	if (p_port == 0)
+		return "edge0";
+	else if (p_port == 1)
+		return "edge1";
+	else if (p_port == 2)
+		return "x";
+	return "";
+}
+
+int VisualShaderNodeVectorScalarSmoothStep::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorClamp::PortType VisualShaderNodeVectorScalarSmoothStep::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorScalarSmoothStep::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorScalarSmoothStep::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = smoothstep( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeVectorScalarSmoothStep::VisualShaderNodeVectorScalarSmoothStep() {
+	set_input_port_default_value(0, 0.0);
+	set_input_port_default_value(1, 0.0);
+	set_input_port_default_value(2, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Distance
+
+String VisualShaderNodeVectorDistance::get_caption() const {
+	return "Distance";
+}
+
+int VisualShaderNodeVectorDistance::get_input_port_count() const {
+	return 2;
+}
+
+VisualShaderNodeVectorDistance::PortType VisualShaderNodeVectorDistance::get_input_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorDistance::get_input_port_name(int p_port) const {
+	if (p_port == 0) {
+		return "p0";
+	} else if (p_port == 1) {
+		return "p1";
+	}
+	return "";
+}
+
+int VisualShaderNodeVectorDistance::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorDistance::PortType VisualShaderNodeVectorDistance::get_output_port_type(int p_port) const {
+	return PORT_TYPE_SCALAR;
+}
+
+String VisualShaderNodeVectorDistance::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorDistance::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = distance( " + p_input_vars[0] + " , " + p_input_vars[1] + " );\n";
+}
+
+VisualShaderNodeVectorDistance::VisualShaderNodeVectorDistance() {
+	set_input_port_default_value(0, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Refract Vector
+
+String VisualShaderNodeVectorRefract::get_caption() const {
+	return "Refract";
+}
+
+int VisualShaderNodeVectorRefract::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeVectorRefract::PortType VisualShaderNodeVectorRefract::get_input_port_type(int p_port) const {
+
+	if (p_port == 2) {
+		return PORT_TYPE_SCALAR;
+	}
+
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorRefract::get_input_port_name(int p_port) const {
+	if (p_port == 0) {
+		return "I";
+	} else if (p_port == 1) {
+		return "N";
+	} else if (p_port == 2) {
+		return "eta";
+	}
+	return "";
+}
+
+int VisualShaderNodeVectorRefract::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeVectorRefract::PortType VisualShaderNodeVectorRefract::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeVectorRefract::get_output_port_name(int p_port) const {
+	return "";
+}
+
+String VisualShaderNodeVectorRefract::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = refract( " + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + " );\n";
+}
+
+VisualShaderNodeVectorRefract::VisualShaderNodeVectorRefract() {
+	set_input_port_default_value(0, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(2, 0.0);
+}
+
 ////////////// Scalar Interp
 
 String VisualShaderNodeScalarInterp::get_caption() const {
-	return "ScalarInterp";
+	return "Mix";
 }
 
 int VisualShaderNodeScalarInterp::get_input_port_count() const {
@@ -1409,7 +2392,7 @@ VisualShaderNodeScalarInterp::VisualShaderNodeScalarInterp() {
 ////////////// Vector Interp
 
 String VisualShaderNodeVectorInterp::get_caption() const {
-	return "VectorInterp";
+	return "Mix";
 }
 
 int VisualShaderNodeVectorInterp::get_input_port_count() const {
@@ -1662,6 +2645,47 @@ String VisualShaderNodeScalarUniform::generate_code(Shader::Mode p_mode, VisualS
 VisualShaderNodeScalarUniform::VisualShaderNodeScalarUniform() {
 }
 
+////////////// Boolean Uniform
+
+String VisualShaderNodeBooleanUniform::get_caption() const {
+	return "BooleanUniform";
+}
+
+int VisualShaderNodeBooleanUniform::get_input_port_count() const {
+	return 0;
+}
+
+VisualShaderNodeBooleanUniform::PortType VisualShaderNodeBooleanUniform::get_input_port_type(int p_port) const {
+	return PORT_TYPE_BOOLEAN;
+}
+
+String VisualShaderNodeBooleanUniform::get_input_port_name(int p_port) const {
+	return String();
+}
+
+int VisualShaderNodeBooleanUniform::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeBooleanUniform::PortType VisualShaderNodeBooleanUniform::get_output_port_type(int p_port) const {
+	return PORT_TYPE_BOOLEAN;
+}
+
+String VisualShaderNodeBooleanUniform::get_output_port_name(int p_port) const {
+	return ""; //no output port means the editor will be used as port
+}
+
+String VisualShaderNodeBooleanUniform::generate_global(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const {
+	return "uniform bool " + get_uniform_name() + ";\n";
+}
+
+String VisualShaderNodeBooleanUniform::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+	return "\t" + p_output_vars[0] + " = " + get_uniform_name() + ";\n";
+}
+
+VisualShaderNodeBooleanUniform::VisualShaderNodeBooleanUniform() {
+}
+
 ////////////// Color Uniform
 
 String VisualShaderNodeColorUniform::get_caption() const {
@@ -1924,3 +2948,140 @@ String VisualShaderNodeCubeMapUniform::generate_code(Shader::Mode p_mode, Visual
 
 VisualShaderNodeCubeMapUniform::VisualShaderNodeCubeMapUniform() {
 }
+
+////////////// If
+
+String VisualShaderNodeIf::get_caption() const {
+	return "If";
+}
+
+int VisualShaderNodeIf::get_input_port_count() const {
+	return 6;
+}
+
+VisualShaderNodeIf::PortType VisualShaderNodeIf::get_input_port_type(int p_port) const {
+	if (p_port == 0 || p_port == 1 || p_port == 2) {
+		return PORT_TYPE_SCALAR;
+	}
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeIf::get_input_port_name(int p_port) const {
+	switch (p_port) {
+		case 0:
+			return "a";
+		case 1:
+			return "b";
+		case 2:
+			return "tolerance";
+		case 3:
+			return "a == b";
+		case 4:
+			return "a > b";
+		case 5:
+			return "a < b";
+		default:
+			return "";
+	}
+}
+
+int VisualShaderNodeIf::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeIf::PortType VisualShaderNodeIf::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeIf::get_output_port_name(int p_port) const {
+	return "result";
+}
+
+String VisualShaderNodeIf::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+
+	String code;
+	code += "\tif(abs(" + p_input_vars[0] + "-" + p_input_vars[1] + ")<" + p_input_vars[2] + ")\n"; // abs(a - b) < tolerance eg. a == b
+	code += "\t{\n";
+	code += "\t\t" + p_output_vars[0] + "=" + p_input_vars[3] + ";\n";
+	code += "\t}\n";
+	code += "\telse if(" + p_input_vars[0] + "<" + p_input_vars[1] + ")\n"; // a < b
+	code += "\t{\n";
+	code += "\t\t" + p_output_vars[0] + "=" + p_input_vars[5] + ";\n";
+	code += "\t}\n";
+	code += "\telse\n"; // a > b (or a >= b if abs(a - b) < tolerance is false)
+	code += "\t{\n";
+	code += "\t\t" + p_output_vars[0] + "=" + p_input_vars[4] + ";\n";
+	code += "\t}\n";
+	return code;
+}
+
+VisualShaderNodeIf::VisualShaderNodeIf() {
+	set_input_port_default_value(0, 0.0);
+	set_input_port_default_value(1, 0.0);
+	set_input_port_default_value(2, CMP_EPSILON);
+	set_input_port_default_value(3, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(4, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(5, Vector3(0.0, 0.0, 0.0));
+}
+
+////////////// Switch
+
+String VisualShaderNodeSwitch::get_caption() const {
+	return "Switch";
+}
+
+int VisualShaderNodeSwitch::get_input_port_count() const {
+	return 3;
+}
+
+VisualShaderNodeSwitch::PortType VisualShaderNodeSwitch::get_input_port_type(int p_port) const {
+	if (p_port == 0) {
+		return PORT_TYPE_BOOLEAN;
+	}
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeSwitch::get_input_port_name(int p_port) const {
+	switch (p_port) {
+		case 0:
+			return "value";
+		case 1:
+			return "true";
+		case 2:
+			return "false";
+		default:
+			return "";
+	}
+}
+
+int VisualShaderNodeSwitch::get_output_port_count() const {
+	return 1;
+}
+
+VisualShaderNodeSwitch::PortType VisualShaderNodeSwitch::get_output_port_type(int p_port) const {
+	return PORT_TYPE_VECTOR;
+}
+
+String VisualShaderNodeSwitch::get_output_port_name(int p_port) const {
+	return "result";
+}
+
+String VisualShaderNodeSwitch::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
+
+	String code;
+	code += "\tif(" + p_input_vars[0] + ")\n";
+	code += "\t{\n";
+	code += "\t\t" + p_output_vars[0] + "=" + p_input_vars[1] + ";\n";
+	code += "\t}\n";
+	code += "\telse\n";
+	code += "\t{\n";
+	code += "\t\t" + p_output_vars[0] + "=" + p_input_vars[2] + ";\n";
+	code += "\t}\n";
+	return code;
+}
+
+VisualShaderNodeSwitch::VisualShaderNodeSwitch() {
+	set_input_port_default_value(0, false);
+	set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
+	set_input_port_default_value(2, Vector3(0.0, 0.0, 0.0));
+}
diff --git a/scene/resources/visual_shader_nodes.h b/scene/resources/visual_shader_nodes.h
index 27b557494a..90c479bd48 100644
--- a/scene/resources/visual_shader_nodes.h
+++ b/scene/resources/visual_shader_nodes.h
@@ -33,7 +33,9 @@
 
 #include "scene/resources/visual_shader.h"
 
-/// CONSTANTS ///
+///////////////////////////////////////
+/// CONSTANTS
+///////////////////////////////////////
 
 class VisualShaderNodeScalarConstant : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeScalarConstant, VisualShaderNode)
@@ -63,6 +65,38 @@ public:
 	VisualShaderNodeScalarConstant();
 };
 
+///////////////////////////////////////
+
+class VisualShaderNodeBooleanConstant : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeBooleanConstant, VisualShaderNode)
+	bool constant;
+
+protected:
+	static void _bind_methods();
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	void set_constant(bool p_value);
+	bool get_constant() const;
+
+	virtual Vector<StringName> get_editable_properties() const;
+
+	VisualShaderNodeBooleanConstant();
+};
+
+///////////////////////////////////////
+
 class VisualShaderNodeColorConstant : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeColorConstant, VisualShaderNode)
 	Color constant;
@@ -91,6 +125,8 @@ public:
 	VisualShaderNodeColorConstant();
 };
 
+///////////////////////////////////////
+
 class VisualShaderNodeVec3Constant : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeVec3Constant, VisualShaderNode)
 	Vector3 constant;
@@ -119,6 +155,8 @@ public:
 	VisualShaderNodeVec3Constant();
 };
 
+///////////////////////////////////////
+
 class VisualShaderNodeTransformConstant : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeTransformConstant, VisualShaderNode)
 	Transform constant;
@@ -147,7 +185,9 @@ public:
 	VisualShaderNodeTransformConstant();
 };
 
-//////////////////////////////////
+///////////////////////////////////////
+/// TEXTURES
+///////////////////////////////////////
 
 class VisualShaderNodeTexture : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeTexture, VisualShaderNode)
@@ -208,7 +248,7 @@ public:
 VARIANT_ENUM_CAST(VisualShaderNodeTexture::TextureType)
 VARIANT_ENUM_CAST(VisualShaderNodeTexture::Source)
 
-//////////////////////////////////
+///////////////////////////////////////
 
 class VisualShaderNodeCubeMap : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeCubeMap, VisualShaderNode)
@@ -254,6 +294,9 @@ public:
 };
 
 VARIANT_ENUM_CAST(VisualShaderNodeCubeMap::TextureType)
+
+///////////////////////////////////////
+/// OPS
 ///////////////////////////////////////
 
 class VisualShaderNodeScalarOp : public VisualShaderNode {
@@ -269,7 +312,8 @@ public:
 		OP_POW,
 		OP_MAX,
 		OP_MIN,
-		OP_ATAN2
+		OP_ATAN2,
+		OP_STEP
 	};
 
 protected:
@@ -313,8 +357,10 @@ public:
 		OP_POW,
 		OP_MAX,
 		OP_MIN,
-		OP_CROSS
-
+		OP_CROSS,
+		OP_ATAN2,
+		OP_REFLECT,
+		OP_STEP
 	};
 
 protected:
@@ -345,6 +391,8 @@ public:
 
 VARIANT_ENUM_CAST(VisualShaderNodeVectorOp::Operator)
 
+///////////////////////////////////////
+
 class VisualShaderNodeColorOp : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeColorOp, VisualShaderNode)
 
@@ -358,7 +406,7 @@ public:
 		OP_DODGE,
 		OP_BURN,
 		OP_SOFT_LIGHT,
-		OP_HARD_LIGHT,
+		OP_HARD_LIGHT
 	};
 
 protected:
@@ -389,6 +437,10 @@ public:
 
 VARIANT_ENUM_CAST(VisualShaderNodeColorOp::Operator)
 
+///////////////////////////////////////
+/// TRANSFORM-TRANSFORM MULTIPLICATION
+///////////////////////////////////////
+
 class VisualShaderNodeTransformMult : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeTransformMult, VisualShaderNode)
 
@@ -396,6 +448,8 @@ public:
 	enum Operator {
 		OP_AxB,
 		OP_BxA,
+		OP_AxB_COMP,
+		OP_BxA_COMP
 	};
 
 protected:
@@ -426,6 +480,10 @@ public:
 
 VARIANT_ENUM_CAST(VisualShaderNodeTransformMult::Operator)
 
+///////////////////////////////////////
+/// TRANSFORM-VECTOR MULTIPLICATION
+///////////////////////////////////////
+
 class VisualShaderNodeTransformVecMult : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeTransformVecMult, VisualShaderNode)
 
@@ -466,6 +524,8 @@ public:
 VARIANT_ENUM_CAST(VisualShaderNodeTransformVecMult::Operator)
 
 ///////////////////////////////////////
+/// SCALAR FUNC
+///////////////////////////////////////
 
 class VisualShaderNodeScalarFunc : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeScalarFunc, VisualShaderNode)
@@ -492,6 +552,17 @@ public:
 		FUNC_FRAC,
 		FUNC_SATURATE,
 		FUNC_NEGATE,
+		FUNC_ACOSH,
+		FUNC_ASINH,
+		FUNC_ATANH,
+		FUNC_DEGREES,
+		FUNC_EXP2,
+		FUNC_INVERSE_SQRT,
+		FUNC_LOG2,
+		FUNC_RADIANS,
+		FUNC_RECIPROCAL,
+		FUNC_ROUNDEVEN,
+		FUNC_TRUNC
 	};
 
 protected:
@@ -523,6 +594,8 @@ public:
 VARIANT_ENUM_CAST(VisualShaderNodeScalarFunc::Function)
 
 ///////////////////////////////////////
+/// VECTOR FUNC
+///////////////////////////////////////
 
 class VisualShaderNodeVectorFunc : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeVectorFunc, VisualShaderNode)
@@ -535,6 +608,34 @@ public:
 		FUNC_RECIPROCAL,
 		FUNC_RGB2HSV,
 		FUNC_HSV2RGB,
+		FUNC_ABS,
+		FUNC_ACOS,
+		FUNC_ACOSH,
+		FUNC_ASIN,
+		FUNC_ASINH,
+		FUNC_ATAN,
+		FUNC_ATANH,
+		FUNC_CEIL,
+		FUNC_COS,
+		FUNC_COSH,
+		FUNC_DEGREES,
+		FUNC_EXP,
+		FUNC_EXP2,
+		FUNC_FLOOR,
+		FUNC_FRAC,
+		FUNC_INVERSE_SQRT,
+		FUNC_LOG,
+		FUNC_LOG2,
+		FUNC_RADIANS,
+		FUNC_ROUND,
+		FUNC_ROUNDEVEN,
+		FUNC_SIGN,
+		FUNC_SIN,
+		FUNC_SINH,
+		FUNC_SQRT,
+		FUNC_TAN,
+		FUNC_TANH,
+		FUNC_TRUNC
 	};
 
 protected:
@@ -566,6 +667,90 @@ public:
 VARIANT_ENUM_CAST(VisualShaderNodeVectorFunc::Function)
 
 ///////////////////////////////////////
+/// COLOR FUNC
+///////////////////////////////////////
+
+class VisualShaderNodeColorFunc : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeColorFunc, VisualShaderNode)
+
+public:
+	enum Function {
+		FUNC_GRAYSCALE,
+		FUNC_SEPIA
+	};
+
+protected:
+	Function func;
+
+	static void _bind_methods();
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	void set_function(Function p_op);
+	Function get_function() const;
+
+	virtual Vector<StringName> get_editable_properties() const;
+
+	VisualShaderNodeColorFunc();
+};
+
+VARIANT_ENUM_CAST(VisualShaderNodeColorFunc::Function)
+
+///////////////////////////////////////
+/// TRANSFORM FUNC
+///////////////////////////////////////
+
+class VisualShaderNodeTransformFunc : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeTransformFunc, VisualShaderNode)
+
+public:
+	enum Function {
+		FUNC_INVERSE,
+		FUNC_TRANSPOSE
+	};
+
+protected:
+	Function func;
+
+	static void _bind_methods();
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	void set_function(Function p_op);
+	Function get_function() const;
+
+	virtual Vector<StringName> get_editable_properties() const;
+
+	VisualShaderNodeTransformFunc();
+};
+
+VARIANT_ENUM_CAST(VisualShaderNodeTransformFunc::Function)
+
+///////////////////////////////////////
+/// DOT
+///////////////////////////////////////
 
 class VisualShaderNodeDotProduct : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeDotProduct, VisualShaderNode)
@@ -587,6 +772,8 @@ public:
 };
 
 ///////////////////////////////////////
+/// LENGTH
+///////////////////////////////////////
 
 class VisualShaderNodeVectorLen : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeVectorLen, VisualShaderNode)
@@ -608,6 +795,337 @@ public:
 };
 
 ///////////////////////////////////////
+/// DETERMINANT
+///////////////////////////////////////
+
+class VisualShaderNodeDeterminant : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeDeterminant, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeDeterminant();
+};
+
+///////////////////////////////////////
+/// CLAMP
+///////////////////////////////////////
+
+class VisualShaderNodeScalarClamp : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeScalarClamp, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeScalarClamp();
+};
+
+///////////////////////////////////////
+
+class VisualShaderNodeVectorClamp : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorClamp, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeVectorClamp();
+};
+
+///////////////////////////////////////
+/// DERIVATIVE FUNCTIONS
+///////////////////////////////////////
+
+class VisualShaderNodeScalarDerivativeFunc : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeScalarDerivativeFunc, VisualShaderNode)
+
+public:
+	enum Function {
+		FUNC_SUM,
+		FUNC_X,
+		FUNC_Y
+	};
+
+protected:
+	Function func;
+
+	static void _bind_methods();
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	void set_function(Function p_op);
+	Function get_function() const;
+
+	virtual Vector<StringName> get_editable_properties() const;
+
+	VisualShaderNodeScalarDerivativeFunc();
+};
+
+VARIANT_ENUM_CAST(VisualShaderNodeScalarDerivativeFunc::Function)
+
+///////////////////////////////////////
+
+class VisualShaderNodeVectorDerivativeFunc : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorDerivativeFunc, VisualShaderNode)
+
+public:
+	enum Function {
+		FUNC_SUM,
+		FUNC_X,
+		FUNC_Y
+	};
+
+protected:
+	Function func;
+
+	static void _bind_methods();
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	void set_function(Function p_op);
+	Function get_function() const;
+
+	virtual Vector<StringName> get_editable_properties() const;
+
+	VisualShaderNodeVectorDerivativeFunc();
+};
+
+VARIANT_ENUM_CAST(VisualShaderNodeVectorDerivativeFunc::Function)
+
+///////////////////////////////////////
+/// FACEFORWARD
+///////////////////////////////////////
+
+class VisualShaderNodeFaceForward : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeFaceForward, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeFaceForward();
+};
+
+///////////////////////////////////////
+/// OUTER PRODUCT
+///////////////////////////////////////
+
+class VisualShaderNodeOuterProduct : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeOuterProduct, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeOuterProduct();
+};
+
+///////////////////////////////////////
+/// STEP
+///////////////////////////////////////
+
+class VisualShaderNodeVectorScalarStep : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorScalarStep, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeVectorScalarStep();
+};
+
+///////////////////////////////////////
+/// SMOOTHSTEP
+///////////////////////////////////////
+
+class VisualShaderNodeScalarSmoothStep : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeScalarSmoothStep, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeScalarSmoothStep();
+};
+
+///////////////////////////////////////
+
+class VisualShaderNodeVectorSmoothStep : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorSmoothStep, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeVectorSmoothStep();
+};
+
+///////////////////////////////////////
+
+class VisualShaderNodeVectorScalarSmoothStep : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorScalarSmoothStep, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeVectorScalarSmoothStep();
+};
+
+///////////////////////////////////////
+/// DISTANCE
+///////////////////////////////////////
+
+class VisualShaderNodeVectorDistance : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorDistance, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeVectorDistance();
+};
+
+///////////////////////////////////////
+/// REFRACT
+///////////////////////////////////////
+
+class VisualShaderNodeVectorRefract : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeVectorRefract, VisualShaderNode)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeVectorRefract();
+};
+
+///////////////////////////////////////
+/// MIX
+///////////////////////////////////////
 
 class VisualShaderNodeScalarInterp : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeScalarInterp, VisualShaderNode)
@@ -650,6 +1168,8 @@ public:
 };
 
 ///////////////////////////////////////
+/// COMPOSE
+///////////////////////////////////////
 
 class VisualShaderNodeVectorCompose : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeVectorCompose, VisualShaderNode)
@@ -692,6 +1212,8 @@ public:
 };
 
 ///////////////////////////////////////
+/// DECOMPOSE
+///////////////////////////////////////
 
 class VisualShaderNodeVectorDecompose : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeVectorDecompose, VisualShaderNode)
@@ -734,6 +1256,8 @@ public:
 };
 
 ///////////////////////////////////////
+/// UNIFORMS
+///////////////////////////////////////
 
 class VisualShaderNodeScalarUniform : public VisualShaderNodeUniform {
 	GDCLASS(VisualShaderNodeScalarUniform, VisualShaderNodeUniform)
@@ -755,6 +1279,30 @@ public:
 	VisualShaderNodeScalarUniform();
 };
 
+///////////////////////////////////////
+
+class VisualShaderNodeBooleanUniform : public VisualShaderNodeUniform {
+	GDCLASS(VisualShaderNodeBooleanUniform, VisualShaderNodeUniform)
+
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_global(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const;
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const; //if no output is connected, the output var passed will be empty. if no input is connected and input is NIL, the input var passed will be empty
+
+	VisualShaderNodeBooleanUniform();
+};
+
+///////////////////////////////////////
+
 class VisualShaderNodeColorUniform : public VisualShaderNodeUniform {
 	GDCLASS(VisualShaderNodeColorUniform, VisualShaderNodeUniform)
 
@@ -775,6 +1323,8 @@ public:
 	VisualShaderNodeColorUniform();
 };
 
+///////////////////////////////////////
+
 class VisualShaderNodeVec3Uniform : public VisualShaderNodeUniform {
 	GDCLASS(VisualShaderNodeVec3Uniform, VisualShaderNodeUniform)
 
@@ -795,6 +1345,8 @@ public:
 	VisualShaderNodeVec3Uniform();
 };
 
+///////////////////////////////////////
+
 class VisualShaderNodeTransformUniform : public VisualShaderNodeUniform {
 	GDCLASS(VisualShaderNodeTransformUniform, VisualShaderNodeUniform)
 
@@ -815,7 +1367,7 @@ public:
 	VisualShaderNodeTransformUniform();
 };
 
-//////////////////////////////////
+///////////////////////////////////////
 
 class VisualShaderNodeTextureUniform : public VisualShaderNodeUniform {
 	GDCLASS(VisualShaderNodeTextureUniform, VisualShaderNodeUniform)
@@ -867,7 +1419,7 @@ public:
 VARIANT_ENUM_CAST(VisualShaderNodeTextureUniform::TextureType)
 VARIANT_ENUM_CAST(VisualShaderNodeTextureUniform::ColorDefault)
 
-//////////////////////////////////
+///////////////////////////////////////
 
 class VisualShaderNodeCubeMapUniform : public VisualShaderNode {
 	GDCLASS(VisualShaderNodeCubeMapUniform, VisualShaderNode)
@@ -888,4 +1440,48 @@ public:
 	VisualShaderNodeCubeMapUniform();
 };
 
+///////////////////////////////////////
+/// IF
+///////////////////////////////////////
+
+class VisualShaderNodeIf : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeIf, VisualShaderNode)
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const;
+
+	VisualShaderNodeIf();
+};
+
+///////////////////////////////////////
+/// SWITCH
+///////////////////////////////////////
+
+class VisualShaderNodeSwitch : public VisualShaderNode {
+	GDCLASS(VisualShaderNodeSwitch, VisualShaderNode)
+public:
+	virtual String get_caption() const;
+
+	virtual int get_input_port_count() const;
+	virtual PortType get_input_port_type(int p_port) const;
+	virtual String get_input_port_name(int p_port) const;
+
+	virtual int get_output_port_count() const;
+	virtual PortType get_output_port_type(int p_port) const;
+	virtual String get_output_port_name(int p_port) const;
+
+	virtual String generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview = false) const;
+
+	VisualShaderNodeSwitch();
+};
+
 #endif // VISUAL_SHADER_NODES_H
diff --git a/servers/arvr/arvr_interface.cpp b/servers/arvr/arvr_interface.cpp
index 3e59daff6c..686ad0ba9b 100644
--- a/servers/arvr/arvr_interface.cpp
+++ b/servers/arvr/arvr_interface.cpp
@@ -123,6 +123,11 @@ ARVRInterface::ARVRInterface() {
 
 ARVRInterface::~ARVRInterface(){};
 
+// optional render to external texture which enhances performance on those platforms that require us to submit our end result into special textures.
+unsigned int ARVRInterface::get_external_texture_for_eye(ARVRInterface::Eyes p_eye) {
+	return 0;
+};
+
 /** these will only be implemented on AR interfaces, so we want dummies for VR **/
 bool ARVRInterface::get_anchor_detection_is_enabled() const {
 	return false;
diff --git a/servers/arvr/arvr_interface.h b/servers/arvr/arvr_interface.h
index 6908f3006a..9ea59a3961 100644
--- a/servers/arvr/arvr_interface.h
+++ b/servers/arvr/arvr_interface.h
@@ -108,9 +108,11 @@ public:
 	virtual bool is_stereo() = 0; /* returns true if this interface requires stereo rendering (for VR HMDs) or mono rendering (for mobile AR) */
 	virtual Transform get_transform_for_eye(ARVRInterface::Eyes p_eye, const Transform &p_cam_transform) = 0; /* get each eyes camera transform, also implement EYE_MONO */
 	virtual CameraMatrix get_projection_for_eye(ARVRInterface::Eyes p_eye, real_t p_aspect, real_t p_z_near, real_t p_z_far) = 0; /* get each eyes projection matrix */
+	virtual unsigned int get_external_texture_for_eye(ARVRInterface::Eyes p_eye); /* if applicable return external texture to render to */
 	virtual void commit_for_eye(ARVRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) = 0; /* output the left or right eye */
 
 	virtual void process() = 0;
+	virtual void notification(int p_what) = 0;
 
 	ARVRInterface();
 	~ARVRInterface();
diff --git a/servers/arvr/arvr_positional_tracker.cpp b/servers/arvr/arvr_positional_tracker.cpp
index b96e9596f3..aabe617a8a 100644
--- a/servers/arvr/arvr_positional_tracker.cpp
+++ b/servers/arvr/arvr_positional_tracker.cpp
@@ -46,6 +46,7 @@ void ARVRPositionalTracker::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_position"), &ARVRPositionalTracker::get_position);
 	ClassDB::bind_method(D_METHOD("get_hand"), &ARVRPositionalTracker::get_hand);
 	ClassDB::bind_method(D_METHOD("get_transform", "adjust_by_reference_frame"), &ARVRPositionalTracker::get_transform);
+	ClassDB::bind_method(D_METHOD("get_mesh"), &ARVRPositionalTracker::get_mesh);
 
 	// these functions we don't want to expose to normal users but do need to be callable from GDNative
 	ClassDB::bind_method(D_METHOD("_set_type", "type"), &ARVRPositionalTracker::set_type);
@@ -53,7 +54,7 @@ void ARVRPositionalTracker::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_set_joy_id", "joy_id"), &ARVRPositionalTracker::set_joy_id);
 	ClassDB::bind_method(D_METHOD("_set_orientation", "orientation"), &ARVRPositionalTracker::set_orientation);
 	ClassDB::bind_method(D_METHOD("_set_rw_position", "rw_position"), &ARVRPositionalTracker::set_rw_position);
-
+	ClassDB::bind_method(D_METHOD("_set_mesh", "mesh"), &ARVRPositionalTracker::set_mesh);
 	ClassDB::bind_method(D_METHOD("get_rumble"), &ARVRPositionalTracker::get_rumble);
 	ClassDB::bind_method(D_METHOD("set_rumble", "rumble"), &ARVRPositionalTracker::set_rumble);
 
@@ -154,6 +155,18 @@ Vector3 ARVRPositionalTracker::get_rw_position() const {
 	return rw_position;
 };
 
+void ARVRPositionalTracker::set_mesh(const Ref<Mesh> &p_mesh) {
+	_THREAD_SAFE_METHOD_
+
+	mesh = p_mesh;
+};
+
+Ref<Mesh> ARVRPositionalTracker::get_mesh() const {
+	_THREAD_SAFE_METHOD_
+
+	return mesh;
+};
+
 ARVRPositionalTracker::TrackerHand ARVRPositionalTracker::get_hand() const {
 	return hand;
 };
diff --git a/servers/arvr/arvr_positional_tracker.h b/servers/arvr/arvr_positional_tracker.h
index 7cb9486f59..0d6a69540f 100644
--- a/servers/arvr/arvr_positional_tracker.h
+++ b/servers/arvr/arvr_positional_tracker.h
@@ -32,6 +32,7 @@
 #define ARVR_POSITIONAL_TRACKER_H
 
 #include "core/os/thread_safe.h"
+#include "scene/resources/mesh.h"
 #include "servers/arvr_server.h"
 
 /**
@@ -40,9 +41,6 @@
 	The positional tracker object as an object that represents the position and orientation of a tracked object like a controller or headset.
 	An AR/VR Interface will registered the trackers it manages with our AR/VR server and update its position and orientation.
 	This is where potentially additional AR/VR interfaces may be active as there are AR/VR SDKs that solely deal with positional tracking.
-
-	@TODO:
-	- create subclass of spatial node that uses one of our positional trackers to automatically determine its position
 */
 
 class ARVRPositionalTracker : public Object {
@@ -65,6 +63,7 @@ private:
 	Basis orientation; // our orientation
 	bool tracks_position; // do we track position?
 	Vector3 rw_position; // our position "in the real world, so without world_scale applied"
+	Ref<Mesh> mesh; // when available, a mesh that can be used to render this tracker
 	TrackerHand hand; // if known, the hand this tracker is held in
 	real_t rumble; // rumble strength, 0.0 is off, 1.0 is maximum, note that we only record here, arvr_interface is responsible for execution
 
@@ -91,6 +90,8 @@ public:
 	void set_hand(const ARVRPositionalTracker::TrackerHand p_hand);
 	real_t get_rumble() const;
 	void set_rumble(real_t p_rumble);
+	void set_mesh(const Ref<Mesh> &p_mesh);
+	Ref<Mesh> get_mesh() const;
 
 	Transform get_transform(bool p_adjust_by_reference_frame) const;
 
diff --git a/servers/audio/audio_rb_resampler.cpp b/servers/audio/audio_rb_resampler.cpp
index 88f3ed8d15..ad5bcde382 100644
--- a/servers/audio/audio_rb_resampler.cpp
+++ b/servers/audio/audio_rb_resampler.cpp
@@ -201,10 +201,8 @@ void AudioRBResampler::clear() {
 		return;
 
 	//should be stopped at this point but just in case
-	if (rb) {
-		memdelete_arr(rb);
-		memdelete_arr(read_buf);
-	}
+	memdelete_arr(rb);
+	memdelete_arr(read_buf);
 	rb = NULL;
 	offset = 0;
 	rb_read_pos = 0;
diff --git a/servers/audio/effects/audio_effect_record.cpp b/servers/audio/effects/audio_effect_record.cpp
index 2dd71f9452..abf9d5593c 100644
--- a/servers/audio/effects/audio_effect_record.cpp
+++ b/servers/audio/effects/audio_effect_record.cpp
@@ -32,6 +32,9 @@
 
 void AudioEffectRecordInstance::process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count) {
 	if (!is_recording) {
+		for (int i = 0; i < p_frame_count; i++) {
+			p_dst_frames[i] = p_src_frames[i];
+		}
 		return;
 	}
 
@@ -39,6 +42,7 @@ void AudioEffectRecordInstance::process(const AudioFrame *p_src_frames, AudioFra
 	const AudioFrame *src = p_src_frames;
 	AudioFrame *rb_buf = ring_buffer.ptrw();
 	for (int i = 0; i < p_frame_count; i++) {
+		p_dst_frames[i] = p_src_frames[i];
 		rb_buf[ring_buffer_pos & ring_buffer_mask] = src[i];
 		ring_buffer_pos++;
 	}
@@ -66,7 +70,7 @@ void AudioEffectRecordInstance::_io_thread_process() {
 
 	while (is_recording) {
 		//Check: The current recording has been requested to stop
-		if (is_recording && !base->recording_active) {
+		if (!base->recording_active) {
 			is_recording = false;
 		}
 
diff --git a/servers/audio/effects/audio_effect_spectrum_analyzer.cpp b/servers/audio/effects/audio_effect_spectrum_analyzer.cpp
new file mode 100644
index 0000000000..46d92336f3
--- /dev/null
+++ b/servers/audio/effects/audio_effect_spectrum_analyzer.cpp
@@ -0,0 +1,256 @@
+#include "audio_effect_spectrum_analyzer.h"
+#include "servers/audio_server.h"
+
+static void smbFft(float *fftBuffer, long fftFrameSize, long sign)
+/*
+	FFT routine, (C)1996 S.M.Bernsee. Sign = -1 is FFT, 1 is iFFT (inverse)
+	Fills fftBuffer[0...2*fftFrameSize-1] with the Fourier transform of the
+	time domain data in fftBuffer[0...2*fftFrameSize-1]. The FFT array takes
+	and returns the cosine and sine parts in an interleaved manner, ie.
+	fftBuffer[0] = cosPart[0], fftBuffer[1] = sinPart[0], asf. fftFrameSize
+	must be a power of 2. It expects a complex input signal (see footnote 2),
+	ie. when working with 'common' audio signals our input signal has to be
+	passed as {in[0],0.,in[1],0.,in[2],0.,...} asf. In that case, the transform
+	of the frequencies of interest is in fftBuffer[0...fftFrameSize].
+*/
+{
+	float wr, wi, arg, *p1, *p2, temp;
+	float tr, ti, ur, ui, *p1r, *p1i, *p2r, *p2i;
+	long i, bitm, j, le, le2, k;
+
+	for (i = 2; i < 2 * fftFrameSize - 2; i += 2) {
+		for (bitm = 2, j = 0; bitm < 2 * fftFrameSize; bitm <<= 1) {
+			if (i & bitm) j++;
+			j <<= 1;
+		}
+		if (i < j) {
+			p1 = fftBuffer + i;
+			p2 = fftBuffer + j;
+			temp = *p1;
+			*(p1++) = *p2;
+			*(p2++) = temp;
+			temp = *p1;
+			*p1 = *p2;
+			*p2 = temp;
+		}
+	}
+	for (k = 0, le = 2; k < (long)(log((double)fftFrameSize) / log(2.) + .5); k++) {
+		le <<= 1;
+		le2 = le >> 1;
+		ur = 1.0;
+		ui = 0.0;
+		arg = Math_PI / (le2 >> 1);
+		wr = cos(arg);
+		wi = sign * sin(arg);
+		for (j = 0; j < le2; j += 2) {
+			p1r = fftBuffer + j;
+			p1i = p1r + 1;
+			p2r = p1r + le2;
+			p2i = p2r + 1;
+			for (i = j; i < 2 * fftFrameSize; i += le) {
+				tr = *p2r * ur - *p2i * ui;
+				ti = *p2r * ui + *p2i * ur;
+				*p2r = *p1r - tr;
+				*p2i = *p1i - ti;
+				*p1r += tr;
+				*p1i += ti;
+				p1r += le;
+				p1i += le;
+				p2r += le;
+				p2i += le;
+			}
+			tr = ur * wr - ui * wi;
+			ui = ur * wi + ui * wr;
+			ur = tr;
+		}
+	}
+}
+void AudioEffectSpectrumAnalyzerInstance::process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count) {
+
+	uint64_t time = OS::get_singleton()->get_ticks_usec();
+
+	//copy everything over first, since this only really does capture
+	for (int i = 0; i < p_frame_count; i++) {
+		p_dst_frames[i] = p_src_frames[i];
+	}
+
+	//capture spectrum
+	while (p_frame_count) {
+		int to_fill = fft_size * 2 - temporal_fft_pos;
+		to_fill = MIN(to_fill, p_frame_count);
+
+		float *fftw = temporal_fft.ptrw();
+		for (int i = 0; i < to_fill; i++) { //left and right buffers
+			fftw[(i + temporal_fft_pos) * 2] = p_src_frames[i].l;
+			fftw[(i + temporal_fft_pos) * 2 + 1] = 0;
+			fftw[(i + temporal_fft_pos + fft_size * 2) * 2] = p_src_frames[i].r;
+			fftw[(i + temporal_fft_pos + fft_size * 2) * 2 + 1] = 0;
+		}
+
+		p_src_frames += to_fill;
+		temporal_fft_pos += to_fill;
+		p_frame_count -= to_fill;
+
+		if (temporal_fft_pos == fft_size * 2) {
+			//time to do a FFT
+			smbFft(fftw, fft_size * 2, -1);
+			smbFft(fftw + fft_size * 4, fft_size * 2, -1);
+			int next = (fft_pos + 1) % fft_count;
+
+			AudioFrame *hw = (AudioFrame *)fft_history[next].ptr(); //do not use write, avoid cow
+
+			for (int i = 0; i < fft_size; i++) {
+				//abs(vec)/fft_size normalizes each frequency
+				float window = 1.0; //-.5 * Math::cos(2. * Math_PI * (double)i / (double)fft_size) + .5;
+				hw[i].l = window * Vector2(fftw[i * 2], fftw[i * 2 + 1]).length() / float(fft_size);
+				hw[i].r = window * Vector2(fftw[fft_size * 4 + i * 2], fftw[fft_size * 4 + i * 2 + 1]).length() / float(fft_size);
+			}
+
+			fft_pos = next; //swap
+			temporal_fft_pos = 0;
+		}
+	}
+
+	//determine time of capture
+	double remainer_sec = (temporal_fft_pos / mix_rate); //substract remainder from mix time
+	last_fft_time = time - uint64_t(remainer_sec * 1000000.0);
+}
+
+void AudioEffectSpectrumAnalyzerInstance::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("get_magnitude_for_frequency_range", "from_hz", "to_hz", "mode"), &AudioEffectSpectrumAnalyzerInstance::get_magnitude_for_frequency_range, DEFVAL(MAGNITUDE_MAX));
+	BIND_ENUM_CONSTANT(MAGNITUDE_AVERAGE);
+	BIND_ENUM_CONSTANT(MAGNITUDE_MAX);
+}
+
+Vector2 AudioEffectSpectrumAnalyzerInstance::get_magnitude_for_frequency_range(float p_begin, float p_end, MagnitudeMode p_mode) const {
+
+	if (last_fft_time == 0) {
+		return Vector2();
+	}
+	uint64_t time = OS::get_singleton()->get_ticks_usec();
+	float diff = double(time - last_fft_time) / 1000000.0 + base->get_tap_back_pos();
+	diff -= AudioServer::get_singleton()->get_output_latency();
+	float fft_time_size = float(fft_size) / mix_rate;
+
+	int fft_index = fft_pos;
+
+	while (diff > fft_time_size) {
+		diff -= fft_time_size;
+		fft_index -= 1;
+		if (fft_index < 0) {
+			fft_index = fft_count - 1;
+		}
+	}
+
+	int begin_pos = p_begin * fft_size / (mix_rate * 0.5);
+	int end_pos = p_end * fft_size / (mix_rate * 0.5);
+
+	begin_pos = CLAMP(begin_pos, 0, fft_size - 1);
+	end_pos = CLAMP(end_pos, 0, fft_size - 1);
+
+	if (begin_pos > end_pos) {
+		SWAP(begin_pos, end_pos);
+	}
+	const AudioFrame *r = fft_history[fft_index].ptr();
+
+	if (p_mode == MAGNITUDE_AVERAGE) {
+		Vector2 avg;
+
+		for (int i = begin_pos; i <= end_pos; i++) {
+			avg += Vector2(r[i]);
+		}
+
+		avg /= float(end_pos - begin_pos + 1);
+
+		return avg;
+	} else {
+
+		Vector2 max;
+
+		for (int i = begin_pos; i <= end_pos; i++) {
+			max.x = MAX(max.x, r[i].l);
+			max.y = MAX(max.x, r[i].r);
+		}
+
+		return max;
+	}
+}
+
+Ref<AudioEffectInstance> AudioEffectSpectrumAnalyzer::instance() {
+
+	Ref<AudioEffectSpectrumAnalyzerInstance> ins;
+	ins.instance();
+	ins->base = Ref<AudioEffectSpectrumAnalyzer>(this);
+	static const int fft_sizes[FFT_SIZE_MAX] = { 256, 512, 1024, 2048, 4096 };
+	ins->fft_size = fft_sizes[fft_size];
+	ins->mix_rate = AudioServer::get_singleton()->get_mix_rate();
+	ins->fft_count = (buffer_length / (float(ins->fft_size) / ins->mix_rate)) + 1;
+	ins->fft_pos = 0;
+	ins->last_fft_time = 0;
+	ins->fft_history.resize(ins->fft_count);
+	ins->temporal_fft.resize(ins->fft_size * 8); //x2 stereo, x2 amount of samples for freqs, x2 for input
+	ins->temporal_fft_pos = 0;
+	for (int i = 0; i < ins->fft_count; i++) {
+		ins->fft_history.write[i].resize(ins->fft_size); //only magnitude matters
+		for (int j = 0; j < ins->fft_size; j++) {
+			ins->fft_history.write[i].write[j] = AudioFrame(0, 0);
+		}
+	}
+	return ins;
+}
+
+void AudioEffectSpectrumAnalyzer::set_buffer_length(float p_volume) {
+	buffer_length = p_volume;
+}
+
+float AudioEffectSpectrumAnalyzer::get_buffer_length() const {
+
+	return buffer_length;
+}
+
+void AudioEffectSpectrumAnalyzer::set_tap_back_pos(float p_seconds) {
+	tapback_pos = p_seconds;
+}
+
+float AudioEffectSpectrumAnalyzer::get_tap_back_pos() const {
+	return tapback_pos;
+}
+
+void AudioEffectSpectrumAnalyzer::set_fft_size(FFT_Size p_fft_size) {
+	ERR_FAIL_INDEX(p_fft_size, FFT_SIZE_MAX);
+	fft_size = p_fft_size;
+}
+
+AudioEffectSpectrumAnalyzer::FFT_Size AudioEffectSpectrumAnalyzer::get_fft_size() const {
+	return fft_size;
+}
+
+void AudioEffectSpectrumAnalyzer::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_buffer_length", "seconds"), &AudioEffectSpectrumAnalyzer::set_buffer_length);
+	ClassDB::bind_method(D_METHOD("get_buffer_length"), &AudioEffectSpectrumAnalyzer::get_buffer_length);
+
+	ClassDB::bind_method(D_METHOD("set_tap_back_pos", "seconds"), &AudioEffectSpectrumAnalyzer::set_tap_back_pos);
+	ClassDB::bind_method(D_METHOD("get_tap_back_pos"), &AudioEffectSpectrumAnalyzer::get_tap_back_pos);
+
+	ClassDB::bind_method(D_METHOD("set_fft_size", "size"), &AudioEffectSpectrumAnalyzer::set_fft_size);
+	ClassDB::bind_method(D_METHOD("get_fft_size"), &AudioEffectSpectrumAnalyzer::get_fft_size);
+
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "buffer_length", PROPERTY_HINT_RANGE, "0.1,4,0.1"), "set_buffer_length", "get_buffer_length");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "tap_back_pos", PROPERTY_HINT_RANGE, "0.1,4,0.1"), "set_tap_back_pos", "get_tap_back_pos");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "fft_size", PROPERTY_HINT_ENUM, "256,512,1024,2048,4096"), "set_fft_size", "get_fft_size");
+
+	BIND_ENUM_CONSTANT(FFT_SIZE_256);
+	BIND_ENUM_CONSTANT(FFT_SIZE_512);
+	BIND_ENUM_CONSTANT(FFT_SIZE_1024);
+	BIND_ENUM_CONSTANT(FFT_SIZE_2048);
+	BIND_ENUM_CONSTANT(FFT_SIZE_4096);
+	BIND_ENUM_CONSTANT(FFT_SIZE_MAX);
+}
+
+AudioEffectSpectrumAnalyzer::AudioEffectSpectrumAnalyzer() {
+	buffer_length = 2;
+	tapback_pos = 0.01;
+	fft_size = FFT_SIZE_1024;
+}
diff --git a/servers/audio/effects/audio_effect_spectrum_analyzer.h b/servers/audio/effects/audio_effect_spectrum_analyzer.h
new file mode 100644
index 0000000000..0534426da3
--- /dev/null
+++ b/servers/audio/effects/audio_effect_spectrum_analyzer.h
@@ -0,0 +1,76 @@
+#ifndef AUDIO_EFFECT_SPECTRUM_ANALYZER_H
+#define AUDIO_EFFECT_SPECTRUM_ANALYZER_H
+
+#include "servers/audio/audio_effect.h"
+
+class AudioEffectSpectrumAnalyzer;
+
+class AudioEffectSpectrumAnalyzerInstance : public AudioEffectInstance {
+	GDCLASS(AudioEffectSpectrumAnalyzerInstance, AudioEffectInstance)
+
+public:
+	enum MagnitudeMode {
+		MAGNITUDE_AVERAGE,
+		MAGNITUDE_MAX,
+	};
+
+private:
+	friend class AudioEffectSpectrumAnalyzer;
+	Ref<AudioEffectSpectrumAnalyzer> base;
+
+	Vector<Vector<AudioFrame> > fft_history;
+	Vector<float> temporal_fft;
+	int temporal_fft_pos;
+	int fft_size;
+	int fft_count;
+	int fft_pos;
+	float mix_rate;
+	uint64_t last_fft_time;
+
+protected:
+	static void _bind_methods();
+
+public:
+	virtual void process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count);
+	Vector2 get_magnitude_for_frequency_range(float p_begin, float p_end, MagnitudeMode p_mode = MAGNITUDE_MAX) const;
+};
+
+VARIANT_ENUM_CAST(AudioEffectSpectrumAnalyzerInstance::MagnitudeMode)
+
+class AudioEffectSpectrumAnalyzer : public AudioEffect {
+	GDCLASS(AudioEffectSpectrumAnalyzer, AudioEffect)
+public:
+	enum FFT_Size {
+		FFT_SIZE_256,
+		FFT_SIZE_512,
+		FFT_SIZE_1024,
+		FFT_SIZE_2048,
+		FFT_SIZE_4096,
+		FFT_SIZE_MAX
+	};
+
+public:
+	friend class AudioEffectSpectrumAnalyzerInstance;
+	float buffer_length;
+	float tapback_pos;
+	FFT_Size fft_size;
+
+protected:
+	static void _bind_methods();
+
+public:
+	Ref<AudioEffectInstance> instance();
+	void set_buffer_length(float p_seconds);
+	float get_buffer_length() const;
+	void set_tap_back_pos(float p_seconds);
+	float get_tap_back_pos() const;
+
+	void set_fft_size(FFT_Size);
+	FFT_Size get_fft_size() const;
+
+	AudioEffectSpectrumAnalyzer();
+};
+
+VARIANT_ENUM_CAST(AudioEffectSpectrumAnalyzer::FFT_Size);
+
+#endif // AUDIO_EFFECT_SPECTRUM_ANALYZER_H
diff --git a/servers/audio/effects/audio_stream_generator.cpp b/servers/audio/effects/audio_stream_generator.cpp
new file mode 100644
index 0000000000..f4a66b5643
--- /dev/null
+++ b/servers/audio/effects/audio_stream_generator.cpp
@@ -0,0 +1,182 @@
+#include "audio_stream_generator.h"
+
+void AudioStreamGenerator::set_mix_rate(float p_mix_rate) {
+	mix_rate = p_mix_rate;
+}
+
+float AudioStreamGenerator::get_mix_rate() const {
+
+	return mix_rate;
+}
+
+void AudioStreamGenerator::set_buffer_length(float p_seconds) {
+
+	buffer_len = p_seconds;
+}
+float AudioStreamGenerator::get_buffer_length() const {
+
+	return buffer_len;
+}
+
+Ref<AudioStreamPlayback> AudioStreamGenerator::instance_playback() {
+
+	Ref<AudioStreamGeneratorPlayback> playback;
+	playback.instance();
+	playback->generator = this;
+	int target_buffer_size = mix_rate * buffer_len;
+	playback->buffer.resize(nearest_shift(target_buffer_size));
+	playback->buffer.clear();
+	return playback;
+}
+String AudioStreamGenerator::get_stream_name() const {
+
+	return "UserFeed";
+}
+
+float AudioStreamGenerator::get_length() const {
+	return 0;
+}
+
+void AudioStreamGenerator::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_mix_rate", "hz"), &AudioStreamGenerator::set_mix_rate);
+	ClassDB::bind_method(D_METHOD("get_mix_rate"), &AudioStreamGenerator::get_mix_rate);
+
+	ClassDB::bind_method(D_METHOD("set_buffer_length", "seconds"), &AudioStreamGenerator::set_buffer_length);
+	ClassDB::bind_method(D_METHOD("get_buffer_length"), &AudioStreamGenerator::get_buffer_length);
+
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "mix_rate", PROPERTY_HINT_RANGE, "20,192000,1"), "set_mix_rate", "get_mix_rate");
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "buffer_length", PROPERTY_HINT_RANGE, "0.01,10,0.01"), "set_buffer_length", "get_buffer_length");
+}
+
+AudioStreamGenerator::AudioStreamGenerator() {
+	mix_rate = 44100;
+	buffer_len = 0.5;
+}
+
+////////////////
+
+bool AudioStreamGeneratorPlayback::push_frame(const Vector2 &p_frame) {
+	if (buffer.space_left() < 1) {
+		return false;
+	}
+
+	AudioFrame f = p_frame;
+
+	buffer.write(&f, 1);
+	return true;
+}
+
+bool AudioStreamGeneratorPlayback::can_push_buffer(int p_frames) const {
+	return buffer.space_left() >= p_frames;
+}
+bool AudioStreamGeneratorPlayback::push_buffer(const PoolVector2Array &p_frames) {
+
+	int to_write = p_frames.size();
+	if (buffer.space_left() < to_write) {
+		return false;
+	}
+
+	PoolVector2Array::Read r = p_frames.read();
+	if (sizeof(real_t) == 4) {
+		//write directly
+		buffer.write((const AudioFrame *)r.ptr(), to_write);
+	} else {
+		//convert from double
+		AudioFrame buf[2048];
+		int ofs = 0;
+		while (to_write) {
+
+			int w = MIN(to_write, 2048);
+			for (int i = 0; i < w; i++) {
+				buf[i] = r[i + ofs];
+			}
+			buffer.write(buf, w);
+			ofs += w;
+			to_write -= w;
+		}
+	}
+	return true;
+}
+
+int AudioStreamGeneratorPlayback::get_frames_available() const {
+	return buffer.space_left();
+}
+
+int AudioStreamGeneratorPlayback::get_skips() const {
+	return skips;
+}
+
+void AudioStreamGeneratorPlayback::clear_buffer() {
+	ERR_FAIL_COND(active);
+	buffer.clear();
+	mixed = 0;
+}
+
+void AudioStreamGeneratorPlayback::_mix_internal(AudioFrame *p_buffer, int p_frames) {
+
+	int read_amount = buffer.data_left();
+	if (p_frames < read_amount) {
+		read_amount = p_frames;
+	}
+
+	buffer.read(p_buffer, read_amount);
+
+	if (read_amount < p_frames) {
+		//skipped, not ideal
+		for (int i = read_amount; i < p_frames; i++) {
+			p_buffer[i] = AudioFrame(0, 0);
+		}
+
+		skips++;
+	}
+
+	mixed += p_frames / generator->get_mix_rate();
+}
+float AudioStreamGeneratorPlayback::get_stream_sampling_rate() {
+	return generator->get_mix_rate();
+}
+
+void AudioStreamGeneratorPlayback::start(float p_from_pos) {
+
+	if (mixed == 0.0) {
+		_begin_resample();
+	}
+	skips = 0;
+	active = true;
+	mixed = 0.0;
+}
+
+void AudioStreamGeneratorPlayback::stop() {
+	active = false;
+}
+bool AudioStreamGeneratorPlayback::is_playing() const {
+
+	return active; //always playing, can't be stopped
+}
+
+int AudioStreamGeneratorPlayback::get_loop_count() const {
+	return 0;
+}
+
+float AudioStreamGeneratorPlayback::get_playback_position() const {
+	return mixed;
+}
+void AudioStreamGeneratorPlayback::seek(float p_time) {
+	//no seek possible
+}
+
+void AudioStreamGeneratorPlayback::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("push_frame", "frame"), &AudioStreamGeneratorPlayback::push_frame);
+	ClassDB::bind_method(D_METHOD("can_push_buffer", "amount"), &AudioStreamGeneratorPlayback::can_push_buffer);
+	ClassDB::bind_method(D_METHOD("push_buffer", "frames"), &AudioStreamGeneratorPlayback::push_buffer);
+	ClassDB::bind_method(D_METHOD("get_frames_available"), &AudioStreamGeneratorPlayback::get_frames_available);
+	ClassDB::bind_method(D_METHOD("get_skips"), &AudioStreamGeneratorPlayback::get_skips);
+	ClassDB::bind_method(D_METHOD("clear_buffer"), &AudioStreamGeneratorPlayback::clear_buffer);
+}
+
+AudioStreamGeneratorPlayback::AudioStreamGeneratorPlayback() {
+	generator = NULL;
+	skips = 0;
+	active = false;
+	mixed = 0;
+}
diff --git a/servers/audio/effects/audio_stream_generator.h b/servers/audio/effects/audio_stream_generator.h
new file mode 100644
index 0000000000..2082682907
--- /dev/null
+++ b/servers/audio/effects/audio_stream_generator.h
@@ -0,0 +1,66 @@
+#ifndef AUDIO_STREAM_USER_FED_H
+#define AUDIO_STREAM_USER_FED_H
+
+#include "core/ring_buffer.h"
+#include "servers/audio/audio_stream.h"
+
+class AudioStreamGenerator : public AudioStream {
+	GDCLASS(AudioStreamGenerator, AudioStream)
+
+	float mix_rate;
+	float buffer_len;
+
+protected:
+	static void _bind_methods();
+
+public:
+	void set_mix_rate(float p_mix_rate);
+	float get_mix_rate() const;
+
+	void set_buffer_length(float p_seconds);
+	float get_buffer_length() const;
+
+	virtual Ref<AudioStreamPlayback> instance_playback();
+	virtual String get_stream_name() const;
+
+	virtual float get_length() const;
+	AudioStreamGenerator();
+};
+
+class AudioStreamGeneratorPlayback : public AudioStreamPlaybackResampled {
+
+	GDCLASS(AudioStreamGeneratorPlayback, AudioStreamPlaybackResampled)
+	friend class AudioStreamGenerator;
+	RingBuffer<AudioFrame> buffer;
+	int skips;
+	bool active;
+	float mixed;
+	AudioStreamGenerator *generator;
+
+protected:
+	virtual void _mix_internal(AudioFrame *p_buffer, int p_frames);
+	virtual float get_stream_sampling_rate();
+
+	static void _bind_methods();
+
+public:
+	virtual void start(float p_from_pos = 0.0);
+	virtual void stop();
+	virtual bool is_playing() const;
+
+	virtual int get_loop_count() const; //times it looped
+
+	virtual float get_playback_position() const;
+	virtual void seek(float p_time);
+
+	bool push_frame(const Vector2 &p_frame);
+	bool can_push_buffer(int p_frames) const;
+	bool push_buffer(const PoolVector2Array &p_frames);
+	int get_frames_available() const;
+	int get_skips() const;
+
+	void clear_buffer();
+
+	AudioStreamGeneratorPlayback();
+};
+#endif // AUDIO_STREAM_USER_FED_H
diff --git a/servers/audio_server.cpp b/servers/audio_server.cpp
index 8c092a02a2..fc3ecedd03 100644
--- a/servers/audio_server.cpp
+++ b/servers/audio_server.cpp
@@ -68,16 +68,21 @@ void AudioDriver::audio_server_process(int p_frames, int32_t *p_buffer, bool p_u
 
 void AudioDriver::update_mix_time(int p_frames) {
 
-	_mix_amount += p_frames;
+	_last_mix_frames = p_frames;
 	if (OS::get_singleton())
 		_last_mix_time = OS::get_singleton()->get_ticks_usec();
 }
 
-double AudioDriver::get_mix_time() const {
+double AudioDriver::get_time_since_last_mix() const {
+
+	return (OS::get_singleton()->get_ticks_usec() - _last_mix_time) / 1000000.0;
+}
+
+double AudioDriver::get_time_to_next_mix() const {
 
 	double total = (OS::get_singleton()->get_ticks_usec() - _last_mix_time) / 1000000.0;
-	total += _mix_amount / (double)get_mix_rate();
-	return total;
+	double mix_buffer = _last_mix_frames / (double)get_mix_rate();
+	return mix_buffer - total;
 }
 
 void AudioDriver::input_buffer_init(int driver_buffer_frames) {
@@ -148,7 +153,7 @@ Array AudioDriver::capture_get_device_list() {
 AudioDriver::AudioDriver() {
 
 	_last_mix_time = 0;
-	_mix_amount = 0;
+	_last_mix_frames = 0;
 	input_position = 0;
 	input_size = 0;
 
@@ -281,13 +286,6 @@ void AudioServer::_driver_process(int p_frames, int32_t *p_buffer) {
 		to_mix -= to_copy;
 	}
 
-	// Calculate latency for Performance.AUDIO_OUTPUT_LATENCY
-	if (OS::get_singleton()) {
-		uint64_t ticks = OS::get_singleton()->get_ticks_usec();
-		output_latency = (ticks - output_latency_ticks) / 1000000.f;
-		output_latency_ticks = ticks;
-	}
-
 #ifdef DEBUG_ENABLED
 	prof_time += OS::get_singleton()->get_ticks_usec() - prof_ticks;
 #endif
@@ -876,6 +874,15 @@ int AudioServer::get_bus_effect_count(int p_bus) {
 	return buses[p_bus]->effects.size();
 }
 
+Ref<AudioEffectInstance> AudioServer::get_bus_effect_instance(int p_bus, int p_effect, int p_channel) {
+
+	ERR_FAIL_INDEX_V(p_bus, buses.size(), Ref<AudioEffectInstance>());
+	ERR_FAIL_INDEX_V(p_effect, buses[p_bus]->effects.size(), Ref<AudioEffectInstance>());
+	ERR_FAIL_INDEX_V(p_channel, buses[p_bus]->channels.size(), Ref<AudioEffectInstance>());
+
+	return buses[p_bus]->channels[p_channel].effect_instances[p_effect];
+}
+
 Ref<AudioEffect> AudioServer::get_bus_effect(int p_bus, int p_effect) {
 
 	ERR_FAIL_INDEX_V(p_bus, buses.size(), Ref<AudioEffect>());
@@ -1045,8 +1052,10 @@ void AudioServer::update() {
 
 void AudioServer::load_default_bus_layout() {
 
-	if (ResourceLoader::exists("res://default_bus_layout.tres")) {
-		Ref<AudioBusLayout> default_layout = ResourceLoader::load("res://default_bus_layout.tres");
+	String layout_path = ProjectSettings::get_singleton()->get("audio/default_bus_layout");
+
+	if (ResourceLoader::exists(layout_path)) {
+		Ref<AudioBusLayout> default_layout = ResourceLoader::load(layout_path);
 		if (default_layout.is_valid()) {
 			set_bus_layout(default_layout);
 		}
@@ -1096,13 +1105,19 @@ AudioServer *AudioServer::get_singleton() {
 	return singleton;
 }
 
-double AudioServer::get_mix_time() const {
+double AudioServer::get_output_latency() const {
 
-	return 0;
+	return AudioDriver::get_singleton()->get_latency();
 }
-double AudioServer::get_output_delay() const {
 
-	return 0;
+double AudioServer::get_time_to_next_mix() const {
+
+	return AudioDriver::get_singleton()->get_time_to_next_mix();
+}
+
+double AudioServer::get_time_since_last_mix() const {
+
+	return AudioDriver::get_singleton()->get_time_since_last_mix();
 }
 
 AudioServer *AudioServer::singleton = NULL;
@@ -1328,6 +1343,7 @@ void AudioServer::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_bus_effect_count", "bus_idx"), &AudioServer::get_bus_effect_count);
 	ClassDB::bind_method(D_METHOD("get_bus_effect", "bus_idx", "effect_idx"), &AudioServer::get_bus_effect);
+	ClassDB::bind_method(D_METHOD("get_bus_effect_instance", "bus_idx", "effect_idx", "channel"), &AudioServer::get_bus_effect_instance, DEFVAL(0));
 	ClassDB::bind_method(D_METHOD("swap_bus_effects", "bus_idx", "effect_idx", "by_effect_idx"), &AudioServer::swap_bus_effects);
 
 	ClassDB::bind_method(D_METHOD("set_bus_effect_enabled", "bus_idx", "effect_idx", "enabled"), &AudioServer::set_bus_effect_enabled);
@@ -1345,6 +1361,10 @@ void AudioServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_device"), &AudioServer::get_device);
 	ClassDB::bind_method(D_METHOD("set_device", "device"), &AudioServer::set_device);
 
+	ClassDB::bind_method(D_METHOD("get_time_to_next_mix"), &AudioServer::get_time_to_next_mix);
+	ClassDB::bind_method(D_METHOD("get_time_since_last_mix"), &AudioServer::get_time_since_last_mix);
+	ClassDB::bind_method(D_METHOD("get_output_latency"), &AudioServer::get_output_latency);
+
 	ClassDB::bind_method(D_METHOD("capture_get_device_list"), &AudioServer::capture_get_device_list);
 	ClassDB::bind_method(D_METHOD("capture_get_device"), &AudioServer::capture_get_device);
 	ClassDB::bind_method(D_METHOD("capture_set_device", "name"), &AudioServer::capture_set_device);
@@ -1374,6 +1394,8 @@ AudioServer::AudioServer() {
 #ifdef DEBUG_ENABLED
 	prof_time = 0;
 #endif
+	mix_time = 0;
+	mix_size = 0;
 }
 
 AudioServer::~AudioServer() {
diff --git a/servers/audio_server.h b/servers/audio_server.h
index 6bd8093c76..e56d87ce84 100644
--- a/servers/audio_server.h
+++ b/servers/audio_server.h
@@ -45,7 +45,7 @@ class AudioDriver {
 
 	static AudioDriver *singleton;
 	uint64_t _last_mix_time;
-	uint64_t _mix_amount;
+	uint64_t _last_mix_frames;
 
 #ifdef DEBUG_ENABLED
 	uint64_t prof_ticks;
@@ -71,7 +71,8 @@ protected:
 #endif
 
 public:
-	double get_mix_time() const; //useful for video -> audio sync
+	double get_time_since_last_mix() const; //useful for video -> audio sync
+	double get_time_to_next_mix() const;
 
 	enum SpeakerMode {
 		SPEAKER_MODE_STEREO,
@@ -163,6 +164,9 @@ public:
 	typedef void (*AudioCallback)(void *p_userdata);
 
 private:
+	uint64_t mix_time;
+	int mix_size;
+
 	uint32_t buffer_size;
 	uint64_t mix_count;
 	uint64_t mix_frames;
@@ -322,6 +326,7 @@ public:
 
 	int get_bus_effect_count(int p_bus);
 	Ref<AudioEffect> get_bus_effect(int p_bus, int p_effect);
+	Ref<AudioEffectInstance> get_bus_effect_instance(int p_bus, int p_effect, int p_channel = 0);
 
 	void swap_bus_effects(int p_bus, int p_effect, int p_by_effect);
 
@@ -350,8 +355,9 @@ public:
 
 	static AudioServer *get_singleton();
 
-	virtual double get_mix_time() const; //useful for video -> audio sync
-	virtual double get_output_delay() const;
+	virtual double get_output_latency() const;
+	virtual double get_time_to_next_mix() const;
+	virtual double get_time_since_last_mix() const;
 
 	void *audio_data_alloc(uint32_t p_data_len, const uint8_t *p_from_data = NULL);
 	void audio_data_free(void *p_data);
@@ -376,7 +382,6 @@ public:
 	String capture_get_device();
 	void capture_set_device(const String &p_name);
 
-	float get_output_latency() { return output_latency; }
 	AudioServer();
 	virtual ~AudioServer();
 };
diff --git a/servers/physics/body_sw.cpp b/servers/physics/body_sw.cpp
index f0fbbafe1c..b4c3670a7b 100644
--- a/servers/physics/body_sw.cpp
+++ b/servers/physics/body_sw.cpp
@@ -196,7 +196,8 @@ void BodySW::set_param(PhysicsServer::BodyParameter p_param, real_t p_value) {
 
 			angular_damp = p_value;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -226,7 +227,8 @@ real_t BodySW::get_param(PhysicsServer::BodyParameter p_param) const {
 			return angular_damp;
 		} break;
 
-		default: {}
+		default: {
+		}
 	}
 
 	return 0;
@@ -474,7 +476,8 @@ void BodySW::integrate_forces(real_t p_step) {
 					_compute_area_gravity_and_dampenings(aa[i].area);
 					stopped = mode == PhysicsServer::AREA_SPACE_OVERRIDE_REPLACE;
 				} break;
-				default: {}
+				default: {
+				}
 			}
 		}
 	}
diff --git a/servers/physics/collision_object_sw.cpp b/servers/physics/collision_object_sw.cpp
index 085ad4f9ea..b1c21290ab 100644
--- a/servers/physics/collision_object_sw.cpp
+++ b/servers/physics/collision_object_sw.cpp
@@ -32,13 +32,14 @@
 #include "servers/physics/physics_server_sw.h"
 #include "space_sw.h"
 
-void CollisionObjectSW::add_shape(ShapeSW *p_shape, const Transform &p_transform) {
+void CollisionObjectSW::add_shape(ShapeSW *p_shape, const Transform &p_transform, bool p_disabled) {
 
 	Shape s;
 	s.shape = p_shape;
 	s.xform = p_transform;
 	s.xform_inv = s.xform.affine_inverse();
 	s.bpid = 0; //needs update
+	s.disabled = p_disabled;
 	shapes.push_back(s);
 	p_shape->add_owner(this);
 
diff --git a/servers/physics/collision_object_sw.h b/servers/physics/collision_object_sw.h
index 5c14d5aaf9..c2c3fe0e5a 100644
--- a/servers/physics/collision_object_sw.h
+++ b/servers/physics/collision_object_sw.h
@@ -118,7 +118,7 @@ public:
 	void _shape_changed();
 
 	_FORCE_INLINE_ Type get_type() const { return type; }
-	void add_shape(ShapeSW *p_shape, const Transform &p_transform = Transform());
+	void add_shape(ShapeSW *p_shape, const Transform &p_transform = Transform(), bool p_disabled = false);
 	void set_shape(int p_index, ShapeSW *p_shape);
 	void set_shape_transform(int p_index, const Transform &p_transform);
 	_FORCE_INLINE_ int get_shape_count() const { return shapes.size(); }
diff --git a/servers/physics/collision_solver_sat.cpp b/servers/physics/collision_solver_sat.cpp
index baf7431e28..3073cc8b11 100644
--- a/servers/physics/collision_solver_sat.cpp
+++ b/servers/physics/collision_solver_sat.cpp
@@ -98,7 +98,7 @@ static void _generate_contacts_edge_edge(const Vector3 *p_points_A, int p_point_
 
 	Vector3 c = rel_A.cross(rel_B).cross(rel_B);
 
-	if (Math::abs(rel_A.dot(c)) < CMP_EPSILON) {
+	if (Math::is_zero_approx(rel_A.dot(c))) {
 
 		// should handle somehow..
 		//ERR_PRINT("TODO FIX");
@@ -678,7 +678,7 @@ static void _collision_box_box(const ShapeSW *p_a, const Transform &p_transform_
 
 			Vector3 axis = p_transform_a.basis.get_axis(i).cross(p_transform_b.basis.get_axis(j));
 
-			if (axis.length_squared() < CMP_EPSILON)
+			if (Math::is_zero_approx(axis.length_squared()))
 				continue;
 			axis.normalize();
 
@@ -767,7 +767,7 @@ static void _collision_box_capsule(const ShapeSW *p_a, const Transform &p_transf
 		// cylinder
 		Vector3 box_axis = p_transform_a.basis.get_axis(i);
 		Vector3 axis = box_axis.cross(cyl_axis);
-		if (axis.length_squared() < CMP_EPSILON)
+		if (Math::is_zero_approx(axis.length_squared()))
 			continue;
 
 		if (!separator.test_axis(axis.normalized()))
diff --git a/servers/physics/joints/cone_twist_joint_sw.cpp b/servers/physics/joints/cone_twist_joint_sw.cpp
index 268b9eefeb..1b3de3e913 100644
--- a/servers/physics/joints/cone_twist_joint_sw.cpp
+++ b/servers/physics/joints/cone_twist_joint_sw.cpp
@@ -127,10 +127,10 @@ bool ConeTwistJointSW::setup(real_t p_timestep) {
 		Vector3 relPos = pivotBInW - pivotAInW;
 
 		Vector3 normal[3];
-		if (relPos.length_squared() > CMP_EPSILON) {
-			normal[0] = relPos.normalized();
-		} else {
+		if (Math::is_zero_approx(relPos.length_squared())) {
 			normal[0] = Vector3(real_t(1.0), 0, 0);
+		} else {
+			normal[0] = relPos.normalized();
 		}
 
 		plane_space(normal[0], normal[1], normal[2]);
diff --git a/servers/physics/joints/generic_6dof_joint_sw.cpp b/servers/physics/joints/generic_6dof_joint_sw.cpp
index 756348f448..813d9b7704 100644
--- a/servers/physics/joints/generic_6dof_joint_sw.cpp
+++ b/servers/physics/joints/generic_6dof_joint_sw.cpp
@@ -107,7 +107,7 @@ real_t G6DOFRotationalLimitMotorSW::solveAngularLimits(
 	// correction velocity
 	real_t motor_relvel = m_limitSoftness * (target_velocity - m_damping * rel_vel);
 
-	if (motor_relvel < CMP_EPSILON && motor_relvel > -CMP_EPSILON) {
+	if (Math::is_zero_approx(motor_relvel)) {
 		return 0.0f; //no need for applying force
 	}
 
diff --git a/servers/physics/joints/hinge_joint_sw.cpp b/servers/physics/joints/hinge_joint_sw.cpp
index e972496b2b..1d1b30286e 100644
--- a/servers/physics/joints/hinge_joint_sw.cpp
+++ b/servers/physics/joints/hinge_joint_sw.cpp
@@ -167,10 +167,10 @@ bool HingeJointSW::setup(real_t p_step) {
 		Vector3 relPos = pivotBInW - pivotAInW;
 
 		Vector3 normal[3];
-		if (relPos.length_squared() > CMP_EPSILON) {
-			normal[0] = relPos.normalized();
-		} else {
+		if (Math::is_zero_approx(relPos.length_squared())) {
 			normal[0] = Vector3(real_t(1.0), 0, 0);
+		} else {
+			normal[0] = relPos.normalized();
 		}
 
 		plane_space(normal[0], normal[1], normal[2]);
diff --git a/servers/physics/physics_server_sw.cpp b/servers/physics/physics_server_sw.cpp
index 36d18e8901..7b982e7015 100644
--- a/servers/physics/physics_server_sw.cpp
+++ b/servers/physics/physics_server_sw.cpp
@@ -283,7 +283,7 @@ PhysicsServer::AreaSpaceOverrideMode PhysicsServerSW::area_get_space_override_mo
 	return area->get_space_override_mode();
 }
 
-void PhysicsServerSW::area_add_shape(RID p_area, RID p_shape, const Transform &p_transform) {
+void PhysicsServerSW::area_add_shape(RID p_area, RID p_shape, const Transform &p_transform, bool p_disabled) {
 
 	AreaSW *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
@@ -291,7 +291,7 @@ void PhysicsServerSW::area_add_shape(RID p_area, RID p_shape, const Transform &p
 	ShapeSW *shape = shape_owner.get(p_shape);
 	ERR_FAIL_COND(!shape);
 
-	area->add_shape(shape, p_transform);
+	area->add_shape(shape, p_transform, p_disabled);
 }
 
 void PhysicsServerSW::area_set_shape(RID p_area, int p_shape_idx, RID p_shape) {
@@ -365,7 +365,7 @@ void PhysicsServerSW::area_set_shape_disabled(RID p_area, int p_shape_idx, bool
 	area->set_shape_as_disabled(p_shape_idx, p_disabled);
 }
 
-void PhysicsServerSW::area_attach_object_instance_id(RID p_area, ObjectID p_ID) {
+void PhysicsServerSW::area_attach_object_instance_id(RID p_area, ObjectID p_id) {
 
 	if (space_owner.owns(p_area)) {
 		SpaceSW *space = space_owner.get(p_area);
@@ -373,7 +373,7 @@ void PhysicsServerSW::area_attach_object_instance_id(RID p_area, ObjectID p_ID)
 	}
 	AreaSW *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
-	area->set_instance_id(p_ID);
+	area->set_instance_id(p_id);
 }
 ObjectID PhysicsServerSW::area_get_object_instance_id(RID p_area) const {
 
@@ -540,7 +540,7 @@ PhysicsServer::BodyMode PhysicsServerSW::body_get_mode(RID p_body) const {
 	return body->get_mode();
 };
 
-void PhysicsServerSW::body_add_shape(RID p_body, RID p_shape, const Transform &p_transform) {
+void PhysicsServerSW::body_add_shape(RID p_body, RID p_shape, const Transform &p_transform, bool p_disabled) {
 
 	BodySW *body = body_owner.get(p_body);
 	ERR_FAIL_COND(!body);
@@ -548,7 +548,7 @@ void PhysicsServerSW::body_add_shape(RID p_body, RID p_shape, const Transform &p
 	ShapeSW *shape = shape_owner.get(p_shape);
 	ERR_FAIL_COND(!shape);
 
-	body->add_shape(shape, p_transform);
+	body->add_shape(shape, p_transform, p_disabled);
 }
 
 void PhysicsServerSW::body_set_shape(RID p_body, int p_shape_idx, RID p_shape) {
@@ -673,12 +673,12 @@ uint32_t PhysicsServerSW::body_get_collision_mask(RID p_body) const {
 	return body->get_collision_mask();
 }
 
-void PhysicsServerSW::body_attach_object_instance_id(RID p_body, uint32_t p_ID) {
+void PhysicsServerSW::body_attach_object_instance_id(RID p_body, uint32_t p_id) {
 
 	BodySW *body = body_owner.get(p_body);
 	ERR_FAIL_COND(!body);
 
-	body->set_instance_id(p_ID);
+	body->set_instance_id(p_id);
 };
 
 uint32_t PhysicsServerSW::body_get_object_instance_id(RID p_body) const {
diff --git a/servers/physics/physics_server_sw.h b/servers/physics/physics_server_sw.h
index 5d0ba3628e..b593e9b5f1 100644
--- a/servers/physics/physics_server_sw.h
+++ b/servers/physics/physics_server_sw.h
@@ -119,7 +119,7 @@ public:
 	virtual void area_set_space(RID p_area, RID p_space);
 	virtual RID area_get_space(RID p_area) const;
 
-	virtual void area_add_shape(RID p_area, RID p_shape, const Transform &p_transform = Transform());
+	virtual void area_add_shape(RID p_area, RID p_shape, const Transform &p_transform = Transform(), bool p_disabled = false);
 	virtual void area_set_shape(RID p_area, int p_shape_idx, RID p_shape);
 	virtual void area_set_shape_transform(RID p_area, int p_shape_idx, const Transform &p_transform);
 
@@ -132,7 +132,7 @@ public:
 
 	virtual void area_set_shape_disabled(RID p_area, int p_shape_idx, bool p_disabled);
 
-	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_ID);
+	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_id);
 	virtual ObjectID area_get_object_instance_id(RID p_area) const;
 
 	virtual void area_set_param(RID p_area, AreaParameter p_param, const Variant &p_value);
@@ -163,7 +163,7 @@ public:
 	virtual void body_set_mode(RID p_body, BodyMode p_mode);
 	virtual BodyMode body_get_mode(RID p_body) const;
 
-	virtual void body_add_shape(RID p_body, RID p_shape, const Transform &p_transform = Transform());
+	virtual void body_add_shape(RID p_body, RID p_shape, const Transform &p_transform = Transform(), bool p_disabled = false);
 	virtual void body_set_shape(RID p_body, int p_shape_idx, RID p_shape);
 	virtual void body_set_shape_transform(RID p_body, int p_shape_idx, const Transform &p_transform);
 
@@ -176,7 +176,7 @@ public:
 	virtual void body_remove_shape(RID p_body, int p_shape_idx);
 	virtual void body_clear_shapes(RID p_body);
 
-	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_ID);
+	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_id);
 	virtual uint32_t body_get_object_instance_id(RID p_body) const;
 
 	virtual void body_set_enable_continuous_collision_detection(RID p_body, bool p_enable);
diff --git a/servers/physics/space_sw.cpp b/servers/physics/space_sw.cpp
index 4ab92715f4..8b9f210850 100644
--- a/servers/physics/space_sw.cpp
+++ b/servers/physics/space_sw.cpp
@@ -351,10 +351,8 @@ bool PhysicsDirectSpaceStateSW::collide_shape(RID p_shape, const Transform &p_sh
 	CollisionSolverSW::CallbackResult cbkres = NULL;
 
 	PhysicsServerSW::CollCbkData *cbkptr = NULL;
-	if (p_result_max > 0) {
-		cbkptr = &cbk;
-		cbkres = PhysicsServerSW::_shape_col_cbk;
-	}
+	cbkptr = &cbk;
+	cbkres = PhysicsServerSW::_shape_col_cbk;
 
 	for (int i = 0; i < amount; i++) {
 
@@ -632,7 +630,7 @@ int SpaceSW::test_body_ray_separation(BodySW *p_body, const Transform &p_transfo
 
 						int ray_index = -1; //reuse shape
 						for (int k = 0; k < rays_found; k++) {
-							if (r_results[ray_index].collision_local_shape == j) {
+							if (r_results[k].collision_local_shape == j) {
 								ray_index = k;
 							}
 						}
diff --git a/servers/physics_2d/body_2d_sw.cpp b/servers/physics_2d/body_2d_sw.cpp
index 60bcb2e28e..60bbcef4b6 100644
--- a/servers/physics_2d/body_2d_sw.cpp
+++ b/servers/physics_2d/body_2d_sw.cpp
@@ -174,7 +174,8 @@ void Body2DSW::set_param(Physics2DServer::BodyParameter p_param, real_t p_value)
 
 			angular_damp = p_value;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 
@@ -206,7 +207,8 @@ real_t Body2DSW::get_param(Physics2DServer::BodyParameter p_param) const {
 
 			return angular_damp;
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	return 0;
@@ -443,7 +445,8 @@ void Body2DSW::integrate_forces(real_t p_step) {
 					_compute_area_gravity_and_dampenings(aa[i].area);
 					stopped = mode == Physics2DServer::AREA_SPACE_OVERRIDE_REPLACE;
 				} break;
-				default: {}
+				default: {
+				}
 			}
 		}
 	}
diff --git a/servers/physics_2d/collision_object_2d_sw.cpp b/servers/physics_2d/collision_object_2d_sw.cpp
index 4ec92497e7..445a2e0613 100644
--- a/servers/physics_2d/collision_object_2d_sw.cpp
+++ b/servers/physics_2d/collision_object_2d_sw.cpp
@@ -31,14 +31,14 @@
 #include "collision_object_2d_sw.h"
 #include "space_2d_sw.h"
 
-void CollisionObject2DSW::add_shape(Shape2DSW *p_shape, const Transform2D &p_transform) {
+void CollisionObject2DSW::add_shape(Shape2DSW *p_shape, const Transform2D &p_transform, bool p_disabled) {
 
 	Shape s;
 	s.shape = p_shape;
 	s.xform = p_transform;
 	s.xform_inv = s.xform.affine_inverse();
 	s.bpid = 0; //needs update
-	s.disabled = false;
+	s.disabled = p_disabled;
 	s.one_way_collision = false;
 	s.one_way_collision_margin = 0;
 	shapes.push_back(s);
diff --git a/servers/physics_2d/collision_object_2d_sw.h b/servers/physics_2d/collision_object_2d_sw.h
index d5e815ff45..fa18e61262 100644
--- a/servers/physics_2d/collision_object_2d_sw.h
+++ b/servers/physics_2d/collision_object_2d_sw.h
@@ -111,7 +111,7 @@ public:
 	void _shape_changed();
 
 	_FORCE_INLINE_ Type get_type() const { return type; }
-	void add_shape(Shape2DSW *p_shape, const Transform2D &p_transform = Transform2D());
+	void add_shape(Shape2DSW *p_shape, const Transform2D &p_transform = Transform2D(), bool p_disabled = false);
 	void set_shape(int p_index, Shape2DSW *p_shape);
 	void set_shape_transform(int p_index, const Transform2D &p_transform);
 	void set_shape_metadata(int p_index, const Variant &p_metadata);
diff --git a/servers/physics_2d/collision_solver_2d_sat.cpp b/servers/physics_2d/collision_solver_2d_sat.cpp
index d6c3fff421..f4bff66389 100644
--- a/servers/physics_2d/collision_solver_2d_sat.cpp
+++ b/servers/physics_2d/collision_solver_2d_sat.cpp
@@ -237,8 +237,8 @@ public:
 
 		Vector2 axis = p_axis;
 
-		if (Math::abs(axis.x) < CMP_EPSILON &&
-				Math::abs(axis.y) < CMP_EPSILON) {
+		if (Math::is_zero_approx(axis.x) &&
+				Math::is_zero_approx(axis.y)) {
 			// strange case, try an upwards separator
 			axis = Vector2(0.0, 1.0);
 		}
diff --git a/servers/physics_2d/joints_2d_sw.cpp b/servers/physics_2d/joints_2d_sw.cpp
index 5c2242c4c5..954b0fa3ea 100644
--- a/servers/physics_2d/joints_2d_sw.cpp
+++ b/servers/physics_2d/joints_2d_sw.cpp
@@ -299,9 +299,7 @@ bool GrooveJoint2DSW::setup(real_t p_step) {
 
 	Vector2 delta = (B->get_transform().get_origin() + rB) - (A->get_transform().get_origin() + rA);
 
-	// FIXME: We used to do this assignment and then override it with 0.001 right after. Investigate why.
-	//real_t _b = get_bias();
-	real_t _b = 0.001;
+	real_t _b = get_bias();
 	gbias = (delta * -(_b == 0 ? space->get_constraint_bias() : _b) * (1.0 / p_step)).clamped(get_max_bias());
 
 	// apply accumulated impulse
diff --git a/servers/physics_2d/physics_2d_server_sw.cpp b/servers/physics_2d/physics_2d_server_sw.cpp
index 283d20876d..0efa15d43e 100644
--- a/servers/physics_2d/physics_2d_server_sw.cpp
+++ b/servers/physics_2d/physics_2d_server_sw.cpp
@@ -378,7 +378,7 @@ Physics2DServer::AreaSpaceOverrideMode Physics2DServerSW::area_get_space_overrid
 	return area->get_space_override_mode();
 }
 
-void Physics2DServerSW::area_add_shape(RID p_area, RID p_shape, const Transform2D &p_transform) {
+void Physics2DServerSW::area_add_shape(RID p_area, RID p_shape, const Transform2D &p_transform, bool p_disabled) {
 
 	Area2DSW *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
@@ -386,7 +386,7 @@ void Physics2DServerSW::area_add_shape(RID p_area, RID p_shape, const Transform2
 	Shape2DSW *shape = shape_owner.get(p_shape);
 	ERR_FAIL_COND(!shape);
 
-	area->add_shape(shape, p_transform);
+	area->add_shape(shape, p_transform, p_disabled);
 }
 
 void Physics2DServerSW::area_set_shape(RID p_area, int p_shape_idx, RID p_shape) {
@@ -460,7 +460,7 @@ void Physics2DServerSW::area_clear_shapes(RID p_area) {
 		area->remove_shape(0);
 }
 
-void Physics2DServerSW::area_attach_object_instance_id(RID p_area, ObjectID p_ID) {
+void Physics2DServerSW::area_attach_object_instance_id(RID p_area, ObjectID p_id) {
 
 	if (space_owner.owns(p_area)) {
 		Space2DSW *space = space_owner.get(p_area);
@@ -468,7 +468,7 @@ void Physics2DServerSW::area_attach_object_instance_id(RID p_area, ObjectID p_ID
 	}
 	Area2DSW *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
-	area->set_instance_id(p_ID);
+	area->set_instance_id(p_id);
 }
 ObjectID Physics2DServerSW::area_get_object_instance_id(RID p_area) const {
 
@@ -481,7 +481,7 @@ ObjectID Physics2DServerSW::area_get_object_instance_id(RID p_area) const {
 	return area->get_instance_id();
 }
 
-void Physics2DServerSW::area_attach_canvas_instance_id(RID p_area, ObjectID p_ID) {
+void Physics2DServerSW::area_attach_canvas_instance_id(RID p_area, ObjectID p_id) {
 
 	if (space_owner.owns(p_area)) {
 		Space2DSW *space = space_owner.get(p_area);
@@ -489,7 +489,7 @@ void Physics2DServerSW::area_attach_canvas_instance_id(RID p_area, ObjectID p_ID
 	}
 	Area2DSW *area = area_owner.get(p_area);
 	ERR_FAIL_COND(!area);
-	area->set_canvas_instance_id(p_ID);
+	area->set_canvas_instance_id(p_id);
 }
 ObjectID Physics2DServerSW::area_get_canvas_instance_id(RID p_area) const {
 
@@ -643,7 +643,7 @@ Physics2DServer::BodyMode Physics2DServerSW::body_get_mode(RID p_body) const {
 	return body->get_mode();
 };
 
-void Physics2DServerSW::body_add_shape(RID p_body, RID p_shape, const Transform2D &p_transform) {
+void Physics2DServerSW::body_add_shape(RID p_body, RID p_shape, const Transform2D &p_transform, bool p_disabled) {
 
 	Body2DSW *body = body_owner.get(p_body);
 	ERR_FAIL_COND(!body);
@@ -651,7 +651,7 @@ void Physics2DServerSW::body_add_shape(RID p_body, RID p_shape, const Transform2
 	Shape2DSW *shape = shape_owner.get(p_shape);
 	ERR_FAIL_COND(!shape);
 
-	body->add_shape(shape, p_transform);
+	body->add_shape(shape, p_transform, p_disabled);
 }
 
 void Physics2DServerSW::body_set_shape(RID p_body, int p_shape_idx, RID p_shape) {
@@ -763,12 +763,12 @@ Physics2DServerSW::CCDMode Physics2DServerSW::body_get_continuous_collision_dete
 	return body->get_continuous_collision_detection_mode();
 }
 
-void Physics2DServerSW::body_attach_object_instance_id(RID p_body, uint32_t p_ID) {
+void Physics2DServerSW::body_attach_object_instance_id(RID p_body, uint32_t p_id) {
 
 	Body2DSW *body = body_owner.get(p_body);
 	ERR_FAIL_COND(!body);
 
-	body->set_instance_id(p_ID);
+	body->set_instance_id(p_id);
 };
 
 uint32_t Physics2DServerSW::body_get_object_instance_id(RID p_body) const {
@@ -779,12 +779,12 @@ uint32_t Physics2DServerSW::body_get_object_instance_id(RID p_body) const {
 	return body->get_instance_id();
 };
 
-void Physics2DServerSW::body_attach_canvas_instance_id(RID p_body, uint32_t p_ID) {
+void Physics2DServerSW::body_attach_canvas_instance_id(RID p_body, uint32_t p_id) {
 
 	Body2DSW *body = body_owner.get(p_body);
 	ERR_FAIL_COND(!body);
 
-	body->set_canvas_instance_id(p_ID);
+	body->set_canvas_instance_id(p_id);
 };
 
 uint32_t Physics2DServerSW::body_get_canvas_instance_id(RID p_body) const {
diff --git a/servers/physics_2d/physics_2d_server_sw.h b/servers/physics_2d/physics_2d_server_sw.h
index 4beec41442..adc011af40 100644
--- a/servers/physics_2d/physics_2d_server_sw.h
+++ b/servers/physics_2d/physics_2d_server_sw.h
@@ -131,7 +131,7 @@ public:
 	virtual void area_set_space(RID p_area, RID p_space);
 	virtual RID area_get_space(RID p_area) const;
 
-	virtual void area_add_shape(RID p_area, RID p_shape, const Transform2D &p_transform = Transform2D());
+	virtual void area_add_shape(RID p_area, RID p_shape, const Transform2D &p_transform = Transform2D(), bool p_disabled = false);
 	virtual void area_set_shape(RID p_area, int p_shape_idx, RID p_shape);
 	virtual void area_set_shape_transform(RID p_area, int p_shape_idx, const Transform2D &p_transform);
 
@@ -144,10 +144,10 @@ public:
 	virtual void area_remove_shape(RID p_area, int p_shape_idx);
 	virtual void area_clear_shapes(RID p_area);
 
-	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_ID);
+	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_id);
 	virtual ObjectID area_get_object_instance_id(RID p_area) const;
 
-	virtual void area_attach_canvas_instance_id(RID p_area, ObjectID p_ID);
+	virtual void area_attach_canvas_instance_id(RID p_area, ObjectID p_id);
 	virtual ObjectID area_get_canvas_instance_id(RID p_area) const;
 
 	virtual void area_set_param(RID p_area, AreaParameter p_param, const Variant &p_value);
@@ -175,7 +175,7 @@ public:
 	virtual void body_set_mode(RID p_body, BodyMode p_mode);
 	virtual BodyMode body_get_mode(RID p_body) const;
 
-	virtual void body_add_shape(RID p_body, RID p_shape, const Transform2D &p_transform = Transform2D());
+	virtual void body_add_shape(RID p_body, RID p_shape, const Transform2D &p_transform = Transform2D(), bool p_disabled = false);
 	virtual void body_set_shape(RID p_body, int p_shape_idx, RID p_shape);
 	virtual void body_set_shape_transform(RID p_body, int p_shape_idx, const Transform2D &p_transform);
 	virtual void body_set_shape_metadata(RID p_body, int p_shape_idx, const Variant &p_metadata);
@@ -191,10 +191,10 @@ public:
 	virtual void body_set_shape_disabled(RID p_body, int p_shape_idx, bool p_disabled);
 	virtual void body_set_shape_as_one_way_collision(RID p_body, int p_shape_idx, bool p_enable, float p_margin);
 
-	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_ID);
+	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_id);
 	virtual uint32_t body_get_object_instance_id(RID p_body) const;
 
-	virtual void body_attach_canvas_instance_id(RID p_body, uint32_t p_ID);
+	virtual void body_attach_canvas_instance_id(RID p_body, uint32_t p_id);
 	virtual uint32_t body_get_canvas_instance_id(RID p_body) const;
 
 	virtual void body_set_continuous_collision_detection_mode(RID p_body, CCDMode p_mode);
diff --git a/servers/physics_2d/physics_2d_server_wrap_mt.h b/servers/physics_2d/physics_2d_server_wrap_mt.h
index 5b9a102a1b..b61e1faad2 100644
--- a/servers/physics_2d/physics_2d_server_wrap_mt.h
+++ b/servers/physics_2d/physics_2d_server_wrap_mt.h
@@ -140,7 +140,7 @@ public:
 	FUNC2(area_set_space_override_mode, RID, AreaSpaceOverrideMode);
 	FUNC1RC(AreaSpaceOverrideMode, area_get_space_override_mode, RID);
 
-	FUNC3(area_add_shape, RID, RID, const Transform2D &);
+	FUNC4(area_add_shape, RID, RID, const Transform2D &, bool);
 	FUNC3(area_set_shape, RID, int, RID);
 	FUNC3(area_set_shape_transform, RID, int, const Transform2D &);
 	FUNC3(area_set_shape_disabled, RID, int, bool);
@@ -183,7 +183,7 @@ public:
 	FUNC2(body_set_mode, RID, BodyMode);
 	FUNC1RC(BodyMode, body_get_mode, RID);
 
-	FUNC3(body_add_shape, RID, RID, const Transform2D &);
+	FUNC4(body_add_shape, RID, RID, const Transform2D &, bool);
 	FUNC3(body_set_shape, RID, int, RID);
 	FUNC3(body_set_shape_transform, RID, int, const Transform2D &);
 	FUNC3(body_set_shape_metadata, RID, int, const Variant &);
diff --git a/servers/physics_2d/shape_2d_sw.cpp b/servers/physics_2d/shape_2d_sw.cpp
index 56b87f620c..66d2dcd417 100644
--- a/servers/physics_2d/shape_2d_sw.cpp
+++ b/servers/physics_2d/shape_2d_sw.cpp
@@ -586,7 +586,7 @@ bool ConvexPolygonShape2DSW::contains_point(const Vector2 &p_point) const {
 			in = true;
 	}
 
-	return (in && !out) || (!in && out);
+	return in != out;
 }
 
 bool ConvexPolygonShape2DSW::intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const {
diff --git a/servers/physics_2d/space_2d_sw.cpp b/servers/physics_2d/space_2d_sw.cpp
index 831764b40c..f5acadd71c 100644
--- a/servers/physics_2d/space_2d_sw.cpp
+++ b/servers/physics_2d/space_2d_sw.cpp
@@ -333,10 +333,8 @@ bool Physics2DDirectSpaceStateSW::collide_shape(RID p_shape, const Transform2D &
 	CollisionSolver2DSW::CallbackResult cbkres = NULL;
 
 	Physics2DServerSW::CollCbkData *cbkptr = NULL;
-	if (p_result_max > 0) {
-		cbkptr = &cbk;
-		cbkres = Physics2DServerSW::_shape_col_cbk;
-	}
+	cbkptr = &cbk;
+	cbkres = Physics2DServerSW::_shape_col_cbk;
 
 	for (int i = 0; i < amount; i++) {
 
@@ -353,7 +351,7 @@ bool Physics2DDirectSpaceStateSW::collide_shape(RID p_shape, const Transform2D &
 		cbk.valid_depth = 0;
 
 		if (CollisionSolver2DSW::solve(shape, p_shape_xform, p_motion, col_obj->get_shape(shape_idx), col_obj->get_transform() * col_obj->get_shape_transform(shape_idx), Vector2(), cbkres, cbkptr, NULL, p_margin)) {
-			collided = p_result_max == 0 || cbk.amount > 0;
+			collided = cbk.amount > 0;
 		}
 	}
 
diff --git a/servers/physics_2d_server.cpp b/servers/physics_2d_server.cpp
index 3a05791f17..dadadf68fd 100644
--- a/servers/physics_2d_server.cpp
+++ b/servers/physics_2d_server.cpp
@@ -567,10 +567,10 @@ void Physics2DServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("area_set_space_override_mode", "area", "mode"), &Physics2DServer::area_set_space_override_mode);
 	ClassDB::bind_method(D_METHOD("area_get_space_override_mode", "area"), &Physics2DServer::area_get_space_override_mode);
 
-	ClassDB::bind_method(D_METHOD("area_add_shape", "area", "shape", "transform"), &Physics2DServer::area_add_shape, DEFVAL(Transform2D()));
+	ClassDB::bind_method(D_METHOD("area_add_shape", "area", "shape", "transform", "disabled"), &Physics2DServer::area_add_shape, DEFVAL(Transform2D()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("area_set_shape", "area", "shape_idx", "shape"), &Physics2DServer::area_set_shape);
 	ClassDB::bind_method(D_METHOD("area_set_shape_transform", "area", "shape_idx", "transform"), &Physics2DServer::area_set_shape_transform);
-	ClassDB::bind_method(D_METHOD("area_set_shape_disabled", "area", "shape_idx", "disable"), &Physics2DServer::area_set_shape_disabled);
+	ClassDB::bind_method(D_METHOD("area_set_shape_disabled", "area", "shape_idx", "disabled"), &Physics2DServer::area_set_shape_disabled);
 
 	ClassDB::bind_method(D_METHOD("area_get_shape_count", "area"), &Physics2DServer::area_get_shape_count);
 	ClassDB::bind_method(D_METHOD("area_get_shape", "area", "shape_idx"), &Physics2DServer::area_get_shape);
@@ -606,7 +606,7 @@ void Physics2DServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("body_set_mode", "body", "mode"), &Physics2DServer::body_set_mode);
 	ClassDB::bind_method(D_METHOD("body_get_mode", "body"), &Physics2DServer::body_get_mode);
 
-	ClassDB::bind_method(D_METHOD("body_add_shape", "body", "shape", "transform"), &Physics2DServer::body_add_shape, DEFVAL(Transform2D()));
+	ClassDB::bind_method(D_METHOD("body_add_shape", "body", "shape", "transform", "disabled"), &Physics2DServer::body_add_shape, DEFVAL(Transform2D()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("body_set_shape", "body", "shape_idx", "shape"), &Physics2DServer::body_set_shape);
 	ClassDB::bind_method(D_METHOD("body_set_shape_transform", "body", "shape_idx", "transform"), &Physics2DServer::body_set_shape_transform);
 	ClassDB::bind_method(D_METHOD("body_set_shape_metadata", "body", "shape_idx", "metadata"), &Physics2DServer::body_set_shape_metadata);
@@ -619,7 +619,7 @@ void Physics2DServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("body_remove_shape", "body", "shape_idx"), &Physics2DServer::body_remove_shape);
 	ClassDB::bind_method(D_METHOD("body_clear_shapes", "body"), &Physics2DServer::body_clear_shapes);
 
-	ClassDB::bind_method(D_METHOD("body_set_shape_disabled", "body", "shape_idx", "disable"), &Physics2DServer::body_set_shape_disabled);
+	ClassDB::bind_method(D_METHOD("body_set_shape_disabled", "body", "shape_idx", "disabled"), &Physics2DServer::body_set_shape_disabled);
 	ClassDB::bind_method(D_METHOD("body_set_shape_as_one_way_collision", "body", "shape_idx", "enable", "margin"), &Physics2DServer::body_set_shape_as_one_way_collision);
 
 	ClassDB::bind_method(D_METHOD("body_attach_object_instance_id", "body", "id"), &Physics2DServer::body_attach_object_instance_id);
diff --git a/servers/physics_2d_server.h b/servers/physics_2d_server.h
index 1de9c7df93..46b22d6777 100644
--- a/servers/physics_2d_server.h
+++ b/servers/physics_2d_server.h
@@ -335,7 +335,7 @@ public:
 	virtual void area_set_space_override_mode(RID p_area, AreaSpaceOverrideMode p_mode) = 0;
 	virtual AreaSpaceOverrideMode area_get_space_override_mode(RID p_area) const = 0;
 
-	virtual void area_add_shape(RID p_area, RID p_shape, const Transform2D &p_transform = Transform2D()) = 0;
+	virtual void area_add_shape(RID p_area, RID p_shape, const Transform2D &p_transform = Transform2D(), bool p_disabled = false) = 0;
 	virtual void area_set_shape(RID p_area, int p_shape_idx, RID p_shape) = 0;
 	virtual void area_set_shape_transform(RID p_area, int p_shape_idx, const Transform2D &p_transform) = 0;
 
@@ -348,10 +348,10 @@ public:
 
 	virtual void area_set_shape_disabled(RID p_area, int p_shape, bool p_disabled) = 0;
 
-	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_ID) = 0;
+	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_id) = 0;
 	virtual ObjectID area_get_object_instance_id(RID p_area) const = 0;
 
-	virtual void area_attach_canvas_instance_id(RID p_area, ObjectID p_ID) = 0;
+	virtual void area_attach_canvas_instance_id(RID p_area, ObjectID p_id) = 0;
 	virtual ObjectID area_get_canvas_instance_id(RID p_area) const = 0;
 
 	virtual void area_set_param(RID p_area, AreaParameter p_param, const Variant &p_value) = 0;
@@ -388,7 +388,7 @@ public:
 	virtual void body_set_mode(RID p_body, BodyMode p_mode) = 0;
 	virtual BodyMode body_get_mode(RID p_body) const = 0;
 
-	virtual void body_add_shape(RID p_body, RID p_shape, const Transform2D &p_transform = Transform2D()) = 0;
+	virtual void body_add_shape(RID p_body, RID p_shape, const Transform2D &p_transform = Transform2D(), bool p_disabled = false) = 0;
 	virtual void body_set_shape(RID p_body, int p_shape_idx, RID p_shape) = 0;
 	virtual void body_set_shape_transform(RID p_body, int p_shape_idx, const Transform2D &p_transform) = 0;
 	virtual void body_set_shape_metadata(RID p_body, int p_shape_idx, const Variant &p_metadata) = 0;
@@ -404,10 +404,10 @@ public:
 	virtual void body_remove_shape(RID p_body, int p_shape_idx) = 0;
 	virtual void body_clear_shapes(RID p_body) = 0;
 
-	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_ID) = 0;
+	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_id) = 0;
 	virtual uint32_t body_get_object_instance_id(RID p_body) const = 0;
 
-	virtual void body_attach_canvas_instance_id(RID p_body, uint32_t p_ID) = 0;
+	virtual void body_attach_canvas_instance_id(RID p_body, uint32_t p_id) = 0;
 	virtual uint32_t body_get_canvas_instance_id(RID p_body) const = 0;
 
 	enum CCDMode {
@@ -653,6 +653,12 @@ class Physics2DServerManager {
 		ClassInfo(const ClassInfo &p_ci) :
 				name(p_ci.name),
 				create_callback(p_ci.create_callback) {}
+
+		ClassInfo operator=(const ClassInfo &p_ci) {
+			name = p_ci.name;
+			create_callback = p_ci.create_callback;
+			return *this;
+		}
 	};
 
 	static Vector<ClassInfo> physics_2d_servers;
diff --git a/servers/physics_server.cpp b/servers/physics_server.cpp
index 0629af663e..fe8c644f0b 100644
--- a/servers/physics_server.cpp
+++ b/servers/physics_server.cpp
@@ -427,9 +427,10 @@ void PhysicsServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("area_set_space_override_mode", "area", "mode"), &PhysicsServer::area_set_space_override_mode);
 	ClassDB::bind_method(D_METHOD("area_get_space_override_mode", "area"), &PhysicsServer::area_get_space_override_mode);
 
-	ClassDB::bind_method(D_METHOD("area_add_shape", "area", "shape", "transform"), &PhysicsServer::area_add_shape, DEFVAL(Transform()));
+	ClassDB::bind_method(D_METHOD("area_add_shape", "area", "shape", "transform", "disabled"), &PhysicsServer::area_add_shape, DEFVAL(Transform()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("area_set_shape", "area", "shape_idx", "shape"), &PhysicsServer::area_set_shape);
 	ClassDB::bind_method(D_METHOD("area_set_shape_transform", "area", "shape_idx", "transform"), &PhysicsServer::area_set_shape_transform);
+	ClassDB::bind_method(D_METHOD("area_set_shape_disabled", "area", "shape_idx", "disabled"), &PhysicsServer::area_set_shape_disabled);
 
 	ClassDB::bind_method(D_METHOD("area_get_shape_count", "area"), &PhysicsServer::area_get_shape_count);
 	ClassDB::bind_method(D_METHOD("area_get_shape", "area", "shape_idx"), &PhysicsServer::area_get_shape);
@@ -471,9 +472,10 @@ void PhysicsServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("body_set_collision_mask", "body", "mask"), &PhysicsServer::body_set_collision_mask);
 	ClassDB::bind_method(D_METHOD("body_get_collision_mask", "body"), &PhysicsServer::body_get_collision_mask);
 
-	ClassDB::bind_method(D_METHOD("body_add_shape", "body", "shape", "transform"), &PhysicsServer::body_add_shape, DEFVAL(Transform()));
+	ClassDB::bind_method(D_METHOD("body_add_shape", "body", "shape", "transform", "disabled"), &PhysicsServer::body_add_shape, DEFVAL(Transform()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("body_set_shape", "body", "shape_idx", "shape"), &PhysicsServer::body_set_shape);
 	ClassDB::bind_method(D_METHOD("body_set_shape_transform", "body", "shape_idx", "transform"), &PhysicsServer::body_set_shape_transform);
+	ClassDB::bind_method(D_METHOD("body_set_shape_disabled", "body", "shape_idx", "disabled"), &PhysicsServer::body_set_shape_disabled);
 
 	ClassDB::bind_method(D_METHOD("body_get_shape_count", "body"), &PhysicsServer::body_get_shape_count);
 	ClassDB::bind_method(D_METHOD("body_get_shape", "body", "shape_idx"), &PhysicsServer::body_get_shape);
diff --git a/servers/physics_server.h b/servers/physics_server.h
index c71bb01943..5e5964ca8d 100644
--- a/servers/physics_server.h
+++ b/servers/physics_server.h
@@ -320,7 +320,7 @@ public:
 	virtual void area_set_space_override_mode(RID p_area, AreaSpaceOverrideMode p_mode) = 0;
 	virtual AreaSpaceOverrideMode area_get_space_override_mode(RID p_area) const = 0;
 
-	virtual void area_add_shape(RID p_area, RID p_shape, const Transform &p_transform = Transform()) = 0;
+	virtual void area_add_shape(RID p_area, RID p_shape, const Transform &p_transform = Transform(), bool p_disabled = false) = 0;
 	virtual void area_set_shape(RID p_area, int p_shape_idx, RID p_shape) = 0;
 	virtual void area_set_shape_transform(RID p_area, int p_shape_idx, const Transform &p_transform) = 0;
 
@@ -333,7 +333,7 @@ public:
 
 	virtual void area_set_shape_disabled(RID p_area, int p_shape_idx, bool p_disabled) = 0;
 
-	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_ID) = 0;
+	virtual void area_attach_object_instance_id(RID p_area, ObjectID p_id) = 0;
 	virtual ObjectID area_get_object_instance_id(RID p_area) const = 0;
 
 	virtual void area_set_param(RID p_area, AreaParameter p_param, const Variant &p_value) = 0;
@@ -372,7 +372,7 @@ public:
 	virtual void body_set_mode(RID p_body, BodyMode p_mode) = 0;
 	virtual BodyMode body_get_mode(RID p_body) const = 0;
 
-	virtual void body_add_shape(RID p_body, RID p_shape, const Transform &p_transform = Transform()) = 0;
+	virtual void body_add_shape(RID p_body, RID p_shape, const Transform &p_transform = Transform(), bool p_disabled = false) = 0;
 	virtual void body_set_shape(RID p_body, int p_shape_idx, RID p_shape) = 0;
 	virtual void body_set_shape_transform(RID p_body, int p_shape_idx, const Transform &p_transform) = 0;
 
@@ -385,7 +385,7 @@ public:
 
 	virtual void body_set_shape_disabled(RID p_body, int p_shape_idx, bool p_disabled) = 0;
 
-	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_ID) = 0;
+	virtual void body_attach_object_instance_id(RID p_body, uint32_t p_id) = 0;
 	virtual uint32_t body_get_object_instance_id(RID p_body) const = 0;
 
 	virtual void body_set_enable_continuous_collision_detection(RID p_body, bool p_enable) = 0;
@@ -794,6 +794,12 @@ class PhysicsServerManager {
 		ClassInfo(const ClassInfo &p_ci) :
 				name(p_ci.name),
 				create_callback(p_ci.create_callback) {}
+
+		ClassInfo operator=(const ClassInfo &p_ci) {
+			name = p_ci.name;
+			create_callback = p_ci.create_callback;
+			return *this;
+		}
 	};
 
 	static Vector<ClassInfo> physics_servers;
diff --git a/servers/register_server_types.cpp b/servers/register_server_types.cpp
index 0cc1cc119c..f3394019f5 100644
--- a/servers/register_server_types.cpp
+++ b/servers/register_server_types.cpp
@@ -50,7 +50,9 @@
 #include "audio/effects/audio_effect_pitch_shift.h"
 #include "audio/effects/audio_effect_record.h"
 #include "audio/effects/audio_effect_reverb.h"
+#include "audio/effects/audio_effect_spectrum_analyzer.h"
 #include "audio/effects/audio_effect_stereo_enhance.h"
+#include "audio/effects/audio_stream_generator.h"
 #include "audio_server.h"
 #include "core/script_debugger_remote.h"
 #include "physics/physics_server_sw.h"
@@ -120,13 +122,18 @@ void register_server_types() {
 
 	ClassDB::register_virtual_class<AudioStream>();
 	ClassDB::register_virtual_class<AudioStreamPlayback>();
+	ClassDB::register_virtual_class<AudioStreamPlaybackResampled>();
 	ClassDB::register_class<AudioStreamMicrophone>();
 	ClassDB::register_class<AudioStreamRandomPitch>();
 	ClassDB::register_virtual_class<AudioEffect>();
+	ClassDB::register_virtual_class<AudioEffectInstance>();
 	ClassDB::register_class<AudioEffectEQ>();
 	ClassDB::register_class<AudioEffectFilter>();
 	ClassDB::register_class<AudioBusLayout>();
 
+	ClassDB::register_class<AudioStreamGenerator>();
+	ClassDB::register_virtual_class<AudioStreamGeneratorPlayback>();
+
 	{
 		//audio effects
 		ClassDB::register_class<AudioEffectAmplify>();
@@ -156,7 +163,10 @@ void register_server_types() {
 		ClassDB::register_class<AudioEffectLimiter>();
 		ClassDB::register_class<AudioEffectPitchShift>();
 		ClassDB::register_class<AudioEffectPhaser>();
+
 		ClassDB::register_class<AudioEffectRecord>();
+		ClassDB::register_class<AudioEffectSpectrumAnalyzer>();
+		ClassDB::register_virtual_class<AudioEffectSpectrumAnalyzerInstance>();
 	}
 
 	ClassDB::register_virtual_class<Physics2DDirectBodyState>();
diff --git a/servers/visual/rasterizer.h b/servers/visual/rasterizer.h
index dd54698471..a02f52f034 100644
--- a/servers/visual/rasterizer.h
+++ b/servers/visual/rasterizer.h
@@ -373,6 +373,7 @@ public:
 	virtual void light_set_negative(RID p_light, bool p_enable) = 0;
 	virtual void light_set_cull_mask(RID p_light, uint32_t p_mask) = 0;
 	virtual void light_set_reverse_cull_face_mode(RID p_light, bool p_enabled) = 0;
+	virtual void light_set_use_gi(RID p_light, bool p_enable) = 0;
 
 	virtual void light_omni_set_shadow_mode(RID p_light, VS::LightOmniShadowMode p_mode) = 0;
 	virtual void light_omni_set_shadow_detail(RID p_light, VS::LightOmniShadowDetail p_detail) = 0;
@@ -392,6 +393,7 @@ public:
 	virtual AABB light_get_aabb(RID p_light) const = 0;
 	virtual float light_get_param(RID p_light, VS::LightParam p_param) = 0;
 	virtual Color light_get_color(RID p_light) = 0;
+	virtual bool light_get_use_gi(RID p_light) = 0;
 	virtual uint64_t light_get_version(RID p_light) const = 0;
 
 	/* PROBE API */
@@ -554,6 +556,7 @@ public:
 	virtual RID render_target_create() = 0;
 	virtual void render_target_set_size(RID p_render_target, int p_width, int p_height) = 0;
 	virtual RID render_target_get_texture(RID p_render_target) const = 0;
+	virtual void render_target_set_external_texture(RID p_render_target, unsigned int p_texture_id) = 0;
 	virtual void render_target_set_flag(RID p_render_target, RenderTargetFlags p_flag, bool p_value) = 0;
 	virtual bool render_target_was_used(RID p_render_target) = 0;
 	virtual void render_target_clear_used(RID p_render_target) = 0;
@@ -788,6 +791,8 @@ public:
 			RID mesh;
 			RID texture;
 			RID normal_map;
+			Transform2D transform;
+			Color modulate;
 			CommandMesh() { type = TYPE_MESH; }
 		};
 
@@ -1101,7 +1106,7 @@ public:
 	virtual void initialize() = 0;
 	virtual void begin_frame(double frame_step) = 0;
 	virtual void set_current_render_target(RID p_render_target) = 0;
-	virtual void restore_render_target() = 0;
+	virtual void restore_render_target(bool p_3d) = 0;
 	virtual void clear_render_target(const Color &p_color) = 0;
 	virtual void blit_render_target_to_screen(RID p_render_target, const Rect2 &p_screen_rect, int p_screen = 0) = 0;
 	virtual void output_lens_distorted_to_screen(RID p_render_target, const Rect2 &p_screen_rect, float p_k1, float p_k2, const Vector2 &p_eye_center, float p_oversample) = 0;
diff --git a/servers/visual/shader_language.cpp b/servers/visual/shader_language.cpp
index 1f9d263354..33714a79b2 100644
--- a/servers/visual/shader_language.cpp
+++ b/servers/visual/shader_language.cpp
@@ -3620,7 +3620,8 @@ ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, Sha
 					case TYPE_FLOAT: {
 						nv.real = -cn->values[i].real;
 					} break;
-					default: {}
+					default: {
+					}
 				}
 
 				values.push_back(nv);
@@ -4822,7 +4823,8 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct
 				case TYPE_MAT2: limit = 2; break;
 				case TYPE_MAT3: limit = 3; break;
 				case TYPE_MAT4: limit = 4; break;
-				default: {}
+				default: {
+				}
 			}
 
 			for (int i = 0; i < limit; i++) {
diff --git a/servers/visual/shader_types.cpp b/servers/visual/shader_types.cpp
index 7a42bc475e..8fd5dfc738 100644
--- a/servers/visual/shader_types.cpp
+++ b/servers/visual/shader_types.cpp
@@ -76,7 +76,7 @@ ShaderTypes::ShaderTypes() {
 	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["CAMERA_MATRIX"] = constt(ShaderLanguage::TYPE_MAT4);
 	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["PROJECTION_MATRIX"] = ShaderLanguage::TYPE_MAT4;
 	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["MODELVIEW_MATRIX"] = ShaderLanguage::TYPE_MAT4;
-	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["INV_PROJECTION_MATRIX"] = ShaderLanguage::TYPE_MAT4;
+	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["INV_PROJECTION_MATRIX"] = constt(ShaderLanguage::TYPE_MAT4);
 	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["TIME"] = constt(ShaderLanguage::TYPE_FLOAT);
 	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["VIEWPORT_SIZE"] = constt(ShaderLanguage::TYPE_VEC2);
 	shader_modes[VS::SHADER_SPATIAL].functions["vertex"].built_ins["OUTPUT_IS_SRGB"] = constt(ShaderLanguage::TYPE_BOOL);
diff --git a/servers/visual/visual_server_canvas.cpp b/servers/visual/visual_server_canvas.cpp
index 85dcaa6b03..d5e154a7fc 100644
--- a/servers/visual/visual_server_canvas.cpp
+++ b/servers/visual/visual_server_canvas.cpp
@@ -33,11 +33,9 @@
 #include "visual_server_raster.h"
 #include "visual_server_viewport.h"
 
-void VisualServerCanvas::_render_canvas_item_tree(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RasterizerCanvas::Light *p_lights) {
+static const int z_range = VS::CANVAS_ITEM_Z_MAX - VS::CANVAS_ITEM_Z_MIN + 1;
 
-	static const int z_range = VS::CANVAS_ITEM_Z_MAX - VS::CANVAS_ITEM_Z_MIN + 1;
-	RasterizerCanvas::Item *z_list[z_range];
-	RasterizerCanvas::Item *z_last_list[z_range];
+void VisualServerCanvas::_render_canvas_item_tree(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RasterizerCanvas::Light *p_lights) {
 
 	memset(z_list, 0, z_range * sizeof(RasterizerCanvas::Item *));
 	memset(z_last_list, 0, z_range * sizeof(RasterizerCanvas::Item *));
@@ -51,20 +49,23 @@ void VisualServerCanvas::_render_canvas_item_tree(Item *p_canvas_item, const Tra
 	}
 }
 
-void _collect_ysort_children(VisualServerCanvas::Item *p_canvas_item, Transform2D p_transform, VisualServerCanvas::Item **r_items, int &r_index) {
+void _collect_ysort_children(VisualServerCanvas::Item *p_canvas_item, Transform2D p_transform, VisualServerCanvas::Item *p_material_owner, VisualServerCanvas::Item **r_items, int &r_index) {
 	int child_item_count = p_canvas_item->child_items.size();
 	VisualServerCanvas::Item **child_items = p_canvas_item->child_items.ptrw();
 	for (int i = 0; i < child_item_count; i++) {
-		if (r_items) {
-			r_items[r_index] = child_items[i];
-			child_items[i]->ysort_xform = p_transform;
-			child_items[i]->ysort_pos = p_transform.xform(child_items[i]->xform.elements[2]);
-		}
+		if (child_items[i]->visible) {
+			if (r_items) {
+				r_items[r_index] = child_items[i];
+				child_items[i]->ysort_xform = p_transform;
+				child_items[i]->ysort_pos = p_transform.xform(child_items[i]->xform.elements[2]);
+				child_items[i]->material_owner = child_items[i]->use_parent_material ? p_material_owner : NULL;
+			}
 
-		r_index++;
+			r_index++;
 
-		if (child_items[i]->sort_y)
-			_collect_ysort_children(child_items[i], p_transform * child_items[i]->xform, r_items, r_index);
+			if (child_items[i]->sort_y)
+				_collect_ysort_children(child_items[i], p_transform * child_items[i]->xform, child_items[i]->use_parent_material ? p_material_owner : child_items[i], r_items, r_index);
+		}
 	}
 }
 
@@ -124,14 +125,14 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
 
 		if (ci->ysort_children_count == -1) {
 			ci->ysort_children_count = 0;
-			_collect_ysort_children(ci, Transform2D(), NULL, ci->ysort_children_count);
+			_collect_ysort_children(ci, Transform2D(), p_material_owner, NULL, ci->ysort_children_count);
 		}
 
 		child_item_count = ci->ysort_children_count;
 		child_items = (Item **)alloca(child_item_count * sizeof(Item *));
 
 		int i = 0;
-		_collect_ysort_children(ci, Transform2D(), child_items, i);
+		_collect_ysort_children(ci, Transform2D(), p_material_owner, child_items, i);
 
 		SortArray<Item *, ItemPtrSort> sorter;
 		sorter.sort(child_items, child_item_count);
@@ -147,7 +148,7 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
 		if (!child_items[i]->behind || (ci->sort_y && child_items[i]->sort_y))
 			continue;
 		if (ci->sort_y) {
-			_render_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
+			_render_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, (Item *)child_items[i]->material_owner);
 		} else {
 			_render_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
 		}
@@ -189,7 +190,7 @@ void VisualServerCanvas::_render_canvas_item(Item *p_canvas_item, const Transfor
 		if (child_items[i]->behind || (ci->sort_y && child_items[i]->sort_y))
 			continue;
 		if (ci->sort_y) {
-			_render_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
+			_render_canvas_item(child_items[i], xform * child_items[i]->ysort_xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, (Item *)child_items[i]->material_owner);
 		} else {
 			_render_canvas_item(child_items[i], xform, p_clip_rect, modulate, p_z, z_list, z_last_list, (Item *)ci->final_clip_owner, p_material_owner);
 		}
@@ -319,6 +320,19 @@ void VisualServerCanvas::canvas_set_modulate(RID p_canvas, const Color &p_color)
 	canvas->modulate = p_color;
 }
 
+void VisualServerCanvas::canvas_set_disable_scale(bool p_disable) {
+	disable_scale = p_disable;
+}
+
+void VisualServerCanvas::canvas_set_parent(RID p_canvas, RID p_parent, float p_scale) {
+
+	Canvas *canvas = canvas_owner.get(p_canvas);
+	ERR_FAIL_COND(!canvas);
+
+	canvas->parent = p_parent;
+	canvas->parent_scale = p_scale;
+}
+
 RID VisualServerCanvas::canvas_item_create() {
 
 	Item *canvas_item = memnew(Item);
@@ -380,6 +394,10 @@ void VisualServerCanvas::canvas_item_set_visible(RID p_item, bool p_visible) {
 	ERR_FAIL_COND(!canvas_item);
 
 	canvas_item->visible = p_visible;
+
+	if (canvas_item->parent.is_valid() && canvas_item_owner.owns(canvas_item->parent)) {
+		_mark_ysort_dirty(canvas_item_owner.get(canvas_item->parent), canvas_item_owner);
+	}
 }
 void VisualServerCanvas::canvas_item_set_light_mask(RID p_item, int p_mask) {
 
@@ -616,7 +634,7 @@ void VisualServerCanvas::canvas_item_add_texture_rect(RID p_item, const Rect2 &p
 	if (p_tile) {
 		rect->flags |= RasterizerCanvas::CANVAS_RECT_TILE;
 		rect->flags |= RasterizerCanvas::CANVAS_RECT_REGION;
-		rect->source = Rect2(0, 0, p_rect.size.width, p_rect.size.height);
+		rect->source = Rect2(0, 0, fabsf(p_rect.size.width), fabsf(p_rect.size.height));
 	}
 
 	if (p_rect.size.x < 0) {
@@ -810,7 +828,7 @@ void VisualServerCanvas::canvas_item_add_set_transform(RID p_item, const Transfo
 	canvas_item->commands.push_back(tr);
 }
 
-void VisualServerCanvas::canvas_item_add_mesh(RID p_item, const RID &p_mesh, RID p_texture, RID p_normal_map) {
+void VisualServerCanvas::canvas_item_add_mesh(RID p_item, const RID &p_mesh, const Transform2D &p_transform, const Color &p_modulate, RID p_texture, RID p_normal_map) {
 
 	Item *canvas_item = canvas_item_owner.getornull(p_item);
 	ERR_FAIL_COND(!canvas_item);
@@ -820,6 +838,8 @@ void VisualServerCanvas::canvas_item_add_mesh(RID p_item, const RID &p_mesh, RID
 	m->mesh = p_mesh;
 	m->texture = p_texture;
 	m->normal_map = p_normal_map;
+	m->transform = p_transform;
+	m->modulate = p_modulate;
 
 	canvas_item->commands.push_back(m);
 }
@@ -1434,4 +1454,15 @@ bool VisualServerCanvas::free(RID p_rid) {
 }
 
 VisualServerCanvas::VisualServerCanvas() {
+
+	z_list = (RasterizerCanvas::Item **)memalloc(z_range * sizeof(RasterizerCanvas::Item *));
+	z_last_list = (RasterizerCanvas::Item **)memalloc(z_range * sizeof(RasterizerCanvas::Item *));
+
+	disable_scale = false;
+}
+
+VisualServerCanvas::~VisualServerCanvas() {
+
+	memfree(z_list);
+	memfree(z_last_list);
 }
diff --git a/servers/visual/visual_server_canvas.h b/servers/visual/visual_server_canvas.h
index 7d788cbe14..26424f927e 100644
--- a/servers/visual/visual_server_canvas.h
+++ b/servers/visual/visual_server_canvas.h
@@ -82,7 +82,7 @@ public:
 
 		_FORCE_INLINE_ bool operator()(const Item *p_left, const Item *p_right) const {
 
-			if (Math::abs(p_left->ysort_pos.y - p_right->ysort_pos.y) < CMP_EPSILON)
+			if (Math::is_equal_approx(p_left->ysort_pos.y, p_right->ysort_pos.y))
 				return p_left->ysort_pos.x < p_right->ysort_pos.x;
 			else
 				return p_left->ysort_pos.y < p_right->ysort_pos.y;
@@ -126,6 +126,8 @@ public:
 		bool children_order_dirty;
 		Vector<ChildItem> child_items;
 		Color modulate;
+		RID parent;
+		float parent_scale;
 
 		int find_item(Item *p_item) {
 			for (int i = 0; i < child_items.size(); i++) {
@@ -143,24 +145,32 @@ public:
 		Canvas() {
 			modulate = Color(1, 1, 1, 1);
 			children_order_dirty = true;
+			parent_scale = 1.0;
 		}
 	};
 
-	RID_Owner<Canvas> canvas_owner;
+	mutable RID_Owner<Canvas> canvas_owner;
 	RID_Owner<Item> canvas_item_owner;
 	RID_Owner<RasterizerCanvas::Light> canvas_light_owner;
 
+	bool disable_scale;
+
 private:
 	void _render_canvas_item_tree(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, RasterizerCanvas::Light *p_lights);
 	void _render_canvas_item(Item *p_canvas_item, const Transform2D &p_transform, const Rect2 &p_clip_rect, const Color &p_modulate, int p_z, RasterizerCanvas::Item **z_list, RasterizerCanvas::Item **z_last_list, Item *p_canvas_clip, Item *p_material_owner);
 	void _light_mask_canvas_items(int p_z, RasterizerCanvas::Item *p_canvas_item, RasterizerCanvas::Light *p_masked_lights);
 
+	RasterizerCanvas::Item **z_list;
+	RasterizerCanvas::Item **z_last_list;
+
 public:
 	void render_canvas(Canvas *p_canvas, const Transform2D &p_transform, RasterizerCanvas::Light *p_lights, RasterizerCanvas::Light *p_masked_lights, const Rect2 &p_clip_rect);
 
 	RID canvas_create();
 	void canvas_set_item_mirroring(RID p_canvas, RID p_item, const Point2 &p_mirroring);
 	void canvas_set_modulate(RID p_canvas, const Color &p_color);
+	void canvas_set_parent(RID p_canvas, RID p_parent, float p_scale);
+	void canvas_set_disable_scale(bool p_disable);
 
 	RID canvas_item_create();
 	void canvas_item_set_parent(RID p_item, RID p_parent);
@@ -190,7 +200,7 @@ public:
 	void canvas_item_add_primitive(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture, float p_width = 1.0, RID p_normal_map = RID());
 	void canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), RID p_normal_map = RID(), bool p_antialiased = false);
 	void canvas_item_add_triangle_array(RID p_item, const Vector<int> &p_indices, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), const Vector<int> &p_bones = Vector<int>(), const Vector<float> &p_weights = Vector<float>(), RID p_texture = RID(), int p_count = -1, RID p_normal_map = RID());
-	void canvas_item_add_mesh(RID p_item, const RID &p_mesh, RID p_texture = RID(), RID p_normal_map = RID());
+	void canvas_item_add_mesh(RID p_item, const RID &p_mesh, const Transform2D &p_transform = Transform2D(), const Color &p_modulate = Color(1, 1, 1), RID p_texture = RID(), RID p_normal_map = RID());
 	void canvas_item_add_multimesh(RID p_item, RID p_mesh, RID p_texture = RID(), RID p_normal_map = RID());
 	void canvas_item_add_particles(RID p_item, RID p_particles, RID p_texture, RID p_normal);
 	void canvas_item_add_set_transform(RID p_item, const Transform2D &p_transform);
@@ -247,6 +257,7 @@ public:
 
 	bool free(RID p_rid);
 	VisualServerCanvas();
+	~VisualServerCanvas();
 };
 
 #endif // VISUALSERVERCANVAS_H
diff --git a/servers/visual/visual_server_raster.h b/servers/visual/visual_server_raster.h
index a1204c7573..3ec428d687 100644
--- a/servers/visual/visual_server_raster.h
+++ b/servers/visual/visual_server_raster.h
@@ -312,6 +312,7 @@ public:
 	BIND2(light_set_negative, RID, bool)
 	BIND2(light_set_cull_mask, RID, uint32_t)
 	BIND2(light_set_reverse_cull_face_mode, RID, bool)
+	BIND2(light_set_use_gi, RID, bool)
 
 	BIND2(light_omni_set_shadow_mode, RID, LightOmniShadowMode)
 	BIND2(light_omni_set_shadow_detail, RID, LightOmniShadowDetail)
@@ -430,6 +431,7 @@ public:
 	BIND0R(RID, camera_create)
 	BIND4(camera_set_perspective, RID, float, float, float)
 	BIND4(camera_set_orthogonal, RID, float, float, float)
+	BIND5(camera_set_frustum, RID, float, Vector2, float, float)
 	BIND2(camera_set_transform, RID, const Transform &)
 	BIND2(camera_set_cull_mask, RID, uint32_t)
 	BIND2(camera_set_environment, RID, RID)
@@ -569,6 +571,8 @@ public:
 	BIND0R(RID, canvas_create)
 	BIND3(canvas_set_item_mirroring, RID, RID, const Point2 &)
 	BIND2(canvas_set_modulate, RID, const Color &)
+	BIND3(canvas_set_parent, RID, RID, float)
+	BIND1(canvas_set_disable_scale, bool)
 
 	BIND0R(RID, canvas_item_create)
 	BIND2(canvas_item_set_parent, RID, RID)
@@ -598,7 +602,7 @@ public:
 	BIND7(canvas_item_add_primitive, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, float, RID)
 	BIND7(canvas_item_add_polygon, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, RID, bool)
 	BIND10(canvas_item_add_triangle_array, RID, const Vector<int> &, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, const Vector<int> &, const Vector<float> &, RID, int, RID)
-	BIND4(canvas_item_add_mesh, RID, const RID &, RID, RID)
+	BIND6(canvas_item_add_mesh, RID, const RID &, const Transform2D &, const Color &, RID, RID)
 	BIND4(canvas_item_add_multimesh, RID, RID, RID, RID)
 	BIND4(canvas_item_add_particles, RID, RID, RID, RID)
 	BIND2(canvas_item_add_set_transform, RID, const Transform2D &)
diff --git a/servers/visual/visual_server_scene.cpp b/servers/visual/visual_server_scene.cpp
index 2590e29aef..3ee23e9290 100644
--- a/servers/visual/visual_server_scene.cpp
+++ b/servers/visual/visual_server_scene.cpp
@@ -61,6 +61,16 @@ void VisualServerScene::camera_set_orthogonal(RID p_camera, float p_size, float
 	camera->zfar = p_z_far;
 }
 
+void VisualServerScene::camera_set_frustum(RID p_camera, float p_size, Vector2 p_offset, float p_z_near, float p_z_far) {
+	Camera *camera = camera_owner.get(p_camera);
+	ERR_FAIL_COND(!camera);
+	camera->type = Camera::FRUSTUM;
+	camera->size = p_size;
+	camera->offset = p_offset;
+	camera->znear = p_z_near;
+	camera->zfar = p_z_far;
+}
+
 void VisualServerScene::camera_set_transform(RID p_camera, const Transform &p_transform) {
 
 	Camera *camera = camera_owner.get(p_camera);
@@ -399,7 +409,8 @@ void VisualServerScene::instance_set_base(RID p_instance, RID p_base) {
 				VSG::scene_render->free(gi_probe->probe_instance);
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		if (instance->base_data) {
@@ -476,7 +487,8 @@ void VisualServerScene::instance_set_base(RID p_instance, RID p_base) {
 				gi_probe->probe_instance = VSG::scene_render->gi_probe_instance_create();
 
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		VSG::storage->instance_add_dependency(p_base, instance);
@@ -524,7 +536,8 @@ void VisualServerScene::instance_set_scenario(RID p_instance, RID p_scenario) {
 					gi_probe_update_list.remove(&gi_probe->update_element);
 				}
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		instance->scenario = NULL;
@@ -556,7 +569,8 @@ void VisualServerScene::instance_set_scenario(RID p_instance, RID p_scenario) {
 					gi_probe_update_list.add(&gi_probe->update_element);
 				}
 			} break;
-			default: {}
+			default: {
+			}
 		}
 
 		_instance_queue_update(instance, true, true);
@@ -593,12 +607,12 @@ void VisualServerScene::instance_set_transform(RID p_instance, const Transform &
 	instance->transform = p_transform;
 	_instance_queue_update(instance, true);
 }
-void VisualServerScene::instance_attach_object_instance_id(RID p_instance, ObjectID p_ID) {
+void VisualServerScene::instance_attach_object_instance_id(RID p_instance, ObjectID p_id) {
 
 	Instance *instance = instance_owner.get(p_instance);
 	ERR_FAIL_COND(!instance);
 
-	instance->object_ID = p_ID;
+	instance->object_id = p_id;
 }
 void VisualServerScene::instance_set_blend_shape_weight(RID p_instance, int p_shape, float p_weight) {
 
@@ -671,7 +685,8 @@ void VisualServerScene::instance_set_visible(RID p_instance, bool p_visible) {
 			}
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 inline bool is_geometry_instance(VisualServer::InstanceType p_type) {
@@ -776,10 +791,10 @@ Vector<ObjectID> VisualServerScene::instances_cull_aabb(const AABB &p_aabb, RID
 
 		Instance *instance = cull[i];
 		ERR_CONTINUE(!instance);
-		if (instance->object_ID == 0)
+		if (instance->object_id == 0)
 			continue;
 
-		instances.push_back(instance->object_ID);
+		instances.push_back(instance->object_id);
 	}
 
 	return instances;
@@ -798,10 +813,10 @@ Vector<ObjectID> VisualServerScene::instances_cull_ray(const Vector3 &p_from, co
 	for (int i = 0; i < culled; i++) {
 		Instance *instance = cull[i];
 		ERR_CONTINUE(!instance);
-		if (instance->object_ID == 0)
+		if (instance->object_id == 0)
 			continue;
 
-		instances.push_back(instance->object_ID);
+		instances.push_back(instance->object_id);
 	}
 
 	return instances;
@@ -822,10 +837,10 @@ Vector<ObjectID> VisualServerScene::instances_cull_convex(const Vector<Plane> &p
 
 		Instance *instance = cull[i];
 		ERR_CONTINUE(!instance);
-		if (instance->object_ID == 0)
+		if (instance->object_id == 0)
 			continue;
 
-		instances.push_back(instance->object_ID);
+		instances.push_back(instance->object_id);
 	}
 
 	return instances;
@@ -848,7 +863,8 @@ void VisualServerScene::instance_geometry_set_flag(RID p_instance, VS::InstanceF
 			instance->redraw_if_visible = p_enabled;
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 }
 void VisualServerScene::instance_geometry_set_cast_shadows_setting(RID p_instance, VS::ShadowCastingSetting p_shadow_casting_setting) {
@@ -1040,7 +1056,8 @@ void VisualServerScene::_update_instance_aabb(Instance *p_instance) {
 			new_aabb = VSG::storage->lightmap_capture_get_bounds(p_instance->base);
 
 		} break;
-		default: {}
+		default: {
+		}
 	}
 
 	// <Zylann> This is why I didn't re-use Instance::aabb to implement custom AABBs
@@ -1723,6 +1740,17 @@ void VisualServerScene::render_camera(RID p_camera, RID p_scenario, Size2 p_view
 			ortho = false;
 
 		} break;
+		case Camera::FRUSTUM: {
+
+			camera_matrix.set_frustum(
+					camera->size,
+					p_viewport_size.width / (float)p_viewport_size.height,
+					camera->offset,
+					camera->znear,
+					camera->zfar,
+					camera->vaspect);
+			ortho = false;
+		} break;
 	}
 
 	_prepare_scene(camera->transform, camera_matrix, ortho, camera->env, camera->visible_layers, p_scenario, p_shadow_atlas, RID());
@@ -1864,7 +1892,7 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca
 			//failure
 		} else if (ins->base_type == VS::INSTANCE_LIGHT && ins->visible) {
 
-			if (ins->visible && light_cull_count < MAX_LIGHTS_CULLED) {
+			if (light_cull_count < MAX_LIGHTS_CULLED) {
 
 				InstanceLightData *light = static_cast<InstanceLightData *>(ins->base_data);
 
@@ -1881,7 +1909,7 @@ void VisualServerScene::_prepare_scene(const Transform p_cam_transform, const Ca
 			}
 		} else if (ins->base_type == VS::INSTANCE_REFLECTION_PROBE && ins->visible) {
 
-			if (ins->visible && reflection_probe_cull_count < MAX_REFLECTION_PROBES_CULLED) {
+			if (reflection_probe_cull_count < MAX_REFLECTION_PROBES_CULLED) {
 
 				InstanceReflectionProbeData *reflection_probe = static_cast<InstanceReflectionProbeData *>(ins->base_data);
 
@@ -2626,7 +2654,7 @@ void VisualServerScene::_bake_gi_probe_light(const GIProbeDataHeader *header, co
 
 			for (int i = 0; i < 3; i++) {
 
-				if (ABS(light_axis[i]) < CMP_EPSILON)
+				if (Math::is_zero_approx(light_axis[i]))
 					continue;
 				clip[clip_planes].normal[i] = 1.0;
 
@@ -2761,7 +2789,7 @@ void VisualServerScene::_bake_gi_probe_light(const GIProbeDataHeader *header, co
 
 				for (int c = 0; c < 3; c++) {
 
-					if (ABS(light_axis[c]) < CMP_EPSILON)
+					if (Math::is_zero_approx(light_axis[c]))
 						continue;
 					clip[clip_planes].normal[c] = 1.0;
 
@@ -3089,6 +3117,9 @@ bool VisualServerScene::_check_gi_probe(Instance *p_gi_probe) {
 
 	for (List<Instance *>::Element *E = p_gi_probe->scenario->directional_lights.front(); E; E = E->next()) {
 
+		if (!VSG::storage->light_get_use_gi(E->get()->base))
+			continue;
+
 		InstanceGIProbeData::LightCache lc;
 		lc.type = VSG::storage->light_get_type(E->get()->base);
 		lc.color = VSG::storage->light_get_color(E->get()->base);
@@ -3109,6 +3140,9 @@ bool VisualServerScene::_check_gi_probe(Instance *p_gi_probe) {
 
 	for (Set<Instance *>::Element *E = probe_data->lights.front(); E; E = E->next()) {
 
+		if (!VSG::storage->light_get_use_gi(E->get()->base))
+			continue;
+
 		InstanceGIProbeData::LightCache lc;
 		lc.type = VSG::storage->light_get_type(E->get()->base);
 		lc.color = VSG::storage->light_get_color(E->get()->base);
diff --git a/servers/visual/visual_server_scene.h b/servers/visual/visual_server_scene.h
index 7583acd88f..629d66c6cb 100644
--- a/servers/visual/visual_server_scene.h
+++ b/servers/visual/visual_server_scene.h
@@ -77,12 +77,14 @@ public:
 
 		enum Type {
 			PERSPECTIVE,
-			ORTHOGONAL
+			ORTHOGONAL,
+			FRUSTUM
 		};
 		Type type;
 		float fov;
 		float znear, zfar;
 		float size;
+		Vector2 offset;
 		uint32_t visible_layers;
 		bool vaspect;
 		RID env;
@@ -97,6 +99,7 @@ public:
 			znear = 0.05;
 			zfar = 100;
 			size = 1.0;
+			offset = Vector2();
 			vaspect = false;
 		}
 	};
@@ -106,6 +109,7 @@ public:
 	virtual RID camera_create();
 	virtual void camera_set_perspective(RID p_camera, float p_fovy_degrees, float p_z_near, float p_z_far);
 	virtual void camera_set_orthogonal(RID p_camera, float p_size, float p_z_near, float p_z_far);
+	virtual void camera_set_frustum(RID p_camera, float p_size, Vector2 p_offset, float p_z_near, float p_z_far);
 	virtual void camera_set_transform(RID p_camera, const Transform &p_transform);
 	virtual void camera_set_cull_mask(RID p_camera, uint32_t p_layers);
 	virtual void camera_set_environment(RID p_camera, RID p_env);
@@ -170,7 +174,7 @@ public:
 		AABB transformed_aabb;
 		AABB *custom_aabb; // <Zylann> would using aabb directly with a bool be better?
 		float extra_margin;
-		uint32_t object_ID;
+		uint32_t object_id;
 
 		float lod_begin;
 		float lod_end;
@@ -207,7 +211,7 @@ public:
 
 			extra_margin = 0;
 
-			object_ID = 0;
+			object_id = 0;
 			visible = true;
 
 			lod_begin = 0;
@@ -453,7 +457,7 @@ public:
 	virtual void instance_set_scenario(RID p_instance, RID p_scenario); // from can be mesh, light, poly, area and portal so far.
 	virtual void instance_set_layer_mask(RID p_instance, uint32_t p_mask);
 	virtual void instance_set_transform(RID p_instance, const Transform &p_transform);
-	virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_ID);
+	virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_id);
 	virtual void instance_set_blend_shape_weight(RID p_instance, int p_shape, float p_weight);
 	virtual void instance_set_surface_material(RID p_instance, int p_surface, RID p_material);
 	virtual void instance_set_visible(RID p_instance, bool p_visible);
diff --git a/servers/visual/visual_server_viewport.cpp b/servers/visual/visual_server_viewport.cpp
index 2c6709662f..e7f60c2c1f 100644
--- a/servers/visual/visual_server_viewport.cpp
+++ b/servers/visual/visual_server_viewport.cpp
@@ -35,6 +35,43 @@
 #include "visual_server_globals.h"
 #include "visual_server_scene.h"
 
+static Transform2D _canvas_get_transform(VisualServerViewport::Viewport *p_viewport, VisualServerCanvas::Canvas *p_canvas, VisualServerViewport::Viewport::CanvasData *p_canvas_data, const Vector2 &p_vp_size) {
+
+	Transform2D xf = p_viewport->global_transform;
+
+	float scale = 1.0;
+	if (p_viewport->canvas_map.has(p_canvas->parent)) {
+		xf = xf * p_viewport->canvas_map[p_canvas->parent].transform;
+		scale = p_canvas->parent_scale;
+	}
+
+	xf = xf * p_canvas_data->transform;
+
+	if (scale != 1.0 && !VSG::canvas->disable_scale) {
+		Vector2 pivot = p_vp_size * 0.5;
+		Transform2D xfpivot;
+		xfpivot.set_origin(pivot);
+		Transform2D xfscale;
+		xfscale.scale(Vector2(scale, scale));
+
+		xf = xfpivot.affine_inverse() * xf;
+		xf = xfscale * xf;
+		xf = xfpivot * xf;
+	}
+
+	return xf;
+}
+
+void VisualServerViewport::_draw_3d(Viewport *p_viewport, ARVRInterface::Eyes p_eye) {
+	Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
+
+	if (p_viewport->use_arvr && arvr_interface.is_valid()) {
+		VSG::scene->render_camera(arvr_interface, p_eye, p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
+	} else {
+		VSG::scene->render_camera(p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
+	}
+}
+
 void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::Eyes p_eye) {
 
 	/* Camera should always be BEFORE any other 3D */
@@ -62,13 +99,7 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 	}
 
 	if (!scenario_draw_canvas_bg && can_draw_3d) {
-		Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
-
-		if (p_viewport->use_arvr && arvr_interface.is_valid()) {
-			VSG::scene->render_camera(arvr_interface, p_eye, p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
-		} else {
-			VSG::scene->render_camera(p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
-		}
+		_draw_3d(p_viewport, p_eye);
 	}
 
 	if (!p_viewport->hide_canvas) {
@@ -86,10 +117,10 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 
 		for (Map<RID, Viewport::CanvasData>::Element *E = p_viewport->canvas_map.front(); E; E = E->next()) {
 
-			Transform2D xf = p_viewport->global_transform * E->get().transform;
-
 			VisualServerCanvas::Canvas *canvas = static_cast<VisualServerCanvas::Canvas *>(E->get().canvas);
 
+			Transform2D xf = _canvas_get_transform(p_viewport, canvas, &E->get(), clip_rect.size);
+
 			//find lights in canvas
 
 			for (Set<RasterizerCanvas::Light *>::Element *F = canvas->lights.front(); F; F = F->next()) {
@@ -174,17 +205,13 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 			//VSG::canvas_render->reset_canvas();
 		}
 
-		VSG::rasterizer->restore_render_target();
+		VSG::rasterizer->restore_render_target(!scenario_draw_canvas_bg && can_draw_3d);
 
 		if (scenario_draw_canvas_bg && canvas_map.front() && canvas_map.front()->key().get_layer() > scenario_canvas_max_layer) {
-			Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
-
 			if (!can_draw_3d) {
 				VSG::scene->render_empty_scene(p_viewport->scenario, p_viewport->shadow_atlas);
-			} else if (p_viewport->use_arvr && arvr_interface.is_valid()) {
-				VSG::scene->render_camera(arvr_interface, p_eye, p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
 			} else {
-				VSG::scene->render_camera(p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
+				_draw_3d(p_viewport, p_eye);
 			}
 			scenario_draw_canvas_bg = false;
 		}
@@ -193,7 +220,7 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 
 			VisualServerCanvas::Canvas *canvas = static_cast<VisualServerCanvas::Canvas *>(E->get()->canvas);
 
-			Transform2D xform = p_viewport->global_transform * E->get()->transform;
+			Transform2D xform = _canvas_get_transform(p_viewport, canvas, E->get(), clip_rect.size);
 
 			RasterizerCanvas::Light *canvas_lights = NULL;
 
@@ -210,14 +237,10 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 			i++;
 
 			if (scenario_draw_canvas_bg && E->key().get_layer() >= scenario_canvas_max_layer) {
-				Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
-
 				if (!can_draw_3d) {
 					VSG::scene->render_empty_scene(p_viewport->scenario, p_viewport->shadow_atlas);
-				} else if (p_viewport->use_arvr && arvr_interface.is_valid()) {
-					VSG::scene->render_camera(arvr_interface, p_eye, p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
 				} else {
-					VSG::scene->render_camera(p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
+					_draw_3d(p_viewport, p_eye);
 				}
 
 				scenario_draw_canvas_bg = false;
@@ -225,14 +248,10 @@ void VisualServerViewport::_draw_viewport(Viewport *p_viewport, ARVRInterface::E
 		}
 
 		if (scenario_draw_canvas_bg) {
-			Ref<ARVRInterface> arvr_interface = ARVRServer::get_singleton()->get_primary_interface();
-
 			if (!can_draw_3d) {
 				VSG::scene->render_empty_scene(p_viewport->scenario, p_viewport->shadow_atlas);
-			} else if (p_viewport->use_arvr && arvr_interface.is_valid()) {
-				VSG::scene->render_camera(arvr_interface, p_eye, p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
 			} else {
-				VSG::scene->render_camera(p_viewport->camera, p_viewport->scenario, p_viewport->size, p_viewport->shadow_atlas);
+				_draw_3d(p_viewport, p_eye);
 			}
 
 			scenario_draw_canvas_bg = false;
@@ -276,17 +295,27 @@ void VisualServerViewport::draw_viewports() {
 
 		if (vp->use_arvr && arvr_interface.is_valid()) {
 			// override our size, make sure it matches our required size
-			Size2 size = arvr_interface->get_render_targetsize();
-			VSG::storage->render_target_set_size(vp->render_target, size.x, size.y);
+			vp->size = arvr_interface->get_render_targetsize();
+			VSG::storage->render_target_set_size(vp->render_target, vp->size.x, vp->size.y);
 
 			// render mono or left eye first
 			ARVRInterface::Eyes leftOrMono = arvr_interface->is_stereo() ? ARVRInterface::EYE_LEFT : ARVRInterface::EYE_MONO;
+
+			// check for an external texture destination for our left eye/mono
+			VSG::storage->render_target_set_external_texture(vp->render_target, arvr_interface->get_external_texture_for_eye(leftOrMono));
+
+			// set our render target as current
 			VSG::rasterizer->set_current_render_target(vp->render_target);
+
+			// and draw left eye/mono
 			_draw_viewport(vp, leftOrMono);
 			arvr_interface->commit_for_eye(leftOrMono, vp->render_target, vp->viewport_to_screen_rect);
 
 			// render right eye
 			if (leftOrMono == ARVRInterface::EYE_LEFT) {
+				// check for an external texture destination for our right eye
+				VSG::storage->render_target_set_external_texture(vp->render_target, arvr_interface->get_external_texture_for_eye(ARVRInterface::EYE_RIGHT));
+
 				// commit for eye may have changed the render target
 				VSG::rasterizer->set_current_render_target(vp->render_target);
 
@@ -297,6 +326,7 @@ void VisualServerViewport::draw_viewports() {
 			// and for our frame timing, mark when we've finished committing our eyes
 			ARVRServer::get_singleton()->_mark_commit();
 		} else {
+			VSG::storage->render_target_set_external_texture(vp->render_target, 0);
 			VSG::rasterizer->set_current_render_target(vp->render_target);
 
 			VSG::scene_render->set_debug_draw_mode(vp->debug_draw);
diff --git a/servers/visual/visual_server_viewport.h b/servers/visual/visual_server_viewport.h
index 5176551540..555b40a103 100644
--- a/servers/visual/visual_server_viewport.h
+++ b/servers/visual/visual_server_viewport.h
@@ -147,6 +147,7 @@ public:
 
 private:
 	Color clear_color;
+	void _draw_3d(Viewport *p_viewport, ARVRInterface::Eyes p_eye);
 	void _draw_viewport(Viewport *p_viewport, ARVRInterface::Eyes p_eye = ARVRInterface::EYE_MONO);
 
 public:
diff --git a/servers/visual/visual_server_wrap_mt.h b/servers/visual/visual_server_wrap_mt.h
index c6da6799a5..b2753369b8 100644
--- a/servers/visual/visual_server_wrap_mt.h
+++ b/servers/visual/visual_server_wrap_mt.h
@@ -248,6 +248,7 @@ public:
 	FUNC2(light_set_negative, RID, bool)
 	FUNC2(light_set_cull_mask, RID, uint32_t)
 	FUNC2(light_set_reverse_cull_face_mode, RID, bool)
+	FUNC2(light_set_use_gi, RID, bool)
 
 	FUNC2(light_omni_set_shadow_mode, RID, LightOmniShadowMode)
 	FUNC2(light_omni_set_shadow_detail, RID, LightOmniShadowDetail)
@@ -360,6 +361,7 @@ public:
 	FUNCRID(camera)
 	FUNC4(camera_set_perspective, RID, float, float, float)
 	FUNC4(camera_set_orthogonal, RID, float, float, float)
+	FUNC5(camera_set_frustum, RID, float, Vector2, float, float)
 	FUNC2(camera_set_transform, RID, const Transform &)
 	FUNC2(camera_set_cull_mask, RID, uint32_t)
 	FUNC2(camera_set_environment, RID, RID)
@@ -487,6 +489,8 @@ public:
 	FUNCRID(canvas)
 	FUNC3(canvas_set_item_mirroring, RID, RID, const Point2 &)
 	FUNC2(canvas_set_modulate, RID, const Color &)
+	FUNC3(canvas_set_parent, RID, RID, float)
+	FUNC1(canvas_set_disable_scale, bool)
 
 	FUNCRID(canvas_item)
 	FUNC2(canvas_item_set_parent, RID, RID)
@@ -516,7 +520,7 @@ public:
 	FUNC7(canvas_item_add_primitive, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, float, RID)
 	FUNC7(canvas_item_add_polygon, RID, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, RID, RID, bool)
 	FUNC10(canvas_item_add_triangle_array, RID, const Vector<int> &, const Vector<Point2> &, const Vector<Color> &, const Vector<Point2> &, const Vector<int> &, const Vector<float> &, RID, int, RID)
-	FUNC4(canvas_item_add_mesh, RID, const RID &, RID, RID)
+	FUNC6(canvas_item_add_mesh, RID, const RID &, const Transform2D &, const Color &, RID, RID)
 	FUNC4(canvas_item_add_multimesh, RID, RID, RID, RID)
 	FUNC4(canvas_item_add_particles, RID, RID, RID, RID)
 	FUNC2(canvas_item_add_set_transform, RID, const Transform2D &)
diff --git a/servers/visual_server.cpp b/servers/visual_server.cpp
index 19c6106502..b39b400a53 100644
--- a/servers/visual_server.cpp
+++ b/servers/visual_server.cpp
@@ -1780,6 +1780,7 @@ void VisualServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("light_set_negative", "light", "enable"), &VisualServer::light_set_negative);
 	ClassDB::bind_method(D_METHOD("light_set_cull_mask", "light", "mask"), &VisualServer::light_set_cull_mask);
 	ClassDB::bind_method(D_METHOD("light_set_reverse_cull_face_mode", "light", "enabled"), &VisualServer::light_set_reverse_cull_face_mode);
+	ClassDB::bind_method(D_METHOD("light_set_use_gi", "light", "enabled"), &VisualServer::light_set_use_gi);
 
 	ClassDB::bind_method(D_METHOD("light_omni_set_shadow_mode", "light", "mode"), &VisualServer::light_omni_set_shadow_mode);
 	ClassDB::bind_method(D_METHOD("light_omni_set_shadow_detail", "light", "detail"), &VisualServer::light_omni_set_shadow_detail);
@@ -1863,6 +1864,7 @@ void VisualServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("camera_create"), &VisualServer::camera_create);
 	ClassDB::bind_method(D_METHOD("camera_set_perspective", "camera", "fovy_degrees", "z_near", "z_far"), &VisualServer::camera_set_perspective);
 	ClassDB::bind_method(D_METHOD("camera_set_orthogonal", "camera", "size", "z_near", "z_far"), &VisualServer::camera_set_orthogonal);
+	ClassDB::bind_method(D_METHOD("camera_set_frustum", "camera", "size", "offset", "z_near", "z_far"), &VisualServer::camera_set_frustum);
 	ClassDB::bind_method(D_METHOD("camera_set_transform", "camera", "transform"), &VisualServer::camera_set_transform);
 	ClassDB::bind_method(D_METHOD("camera_set_cull_mask", "camera", "layers"), &VisualServer::camera_set_cull_mask);
 	ClassDB::bind_method(D_METHOD("camera_set_environment", "camera", "env"), &VisualServer::camera_set_environment);
diff --git a/servers/visual_server.h b/servers/visual_server.h
index 63ddc3328a..5146ca47f1 100644
--- a/servers/visual_server.h
+++ b/servers/visual_server.h
@@ -435,6 +435,7 @@ public:
 	virtual void light_set_negative(RID p_light, bool p_enable) = 0;
 	virtual void light_set_cull_mask(RID p_light, uint32_t p_mask) = 0;
 	virtual void light_set_reverse_cull_face_mode(RID p_light, bool p_enabled) = 0;
+	virtual void light_set_use_gi(RID p_light, bool p_enable) = 0;
 
 	// omni light
 	enum LightOmniShadowMode {
@@ -584,6 +585,7 @@ public:
 	virtual RID camera_create() = 0;
 	virtual void camera_set_perspective(RID p_camera, float p_fovy_degrees, float p_z_near, float p_z_far) = 0;
 	virtual void camera_set_orthogonal(RID p_camera, float p_size, float p_z_near, float p_z_far) = 0;
+	virtual void camera_set_frustum(RID p_camera, float p_size, Vector2 p_offset, float p_z_near, float p_z_far) = 0;
 	virtual void camera_set_transform(RID p_camera, const Transform &p_transform) = 0;
 	virtual void camera_set_cull_mask(RID p_camera, uint32_t p_layers) = 0;
 	virtual void camera_set_environment(RID p_camera, RID p_env) = 0;
@@ -812,7 +814,7 @@ public:
 	virtual void instance_set_scenario(RID p_instance, RID p_scenario) = 0; // from can be mesh, light, poly, area and portal so far.
 	virtual void instance_set_layer_mask(RID p_instance, uint32_t p_mask) = 0;
 	virtual void instance_set_transform(RID p_instance, const Transform &p_transform) = 0;
-	virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_ID) = 0;
+	virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_id) = 0;
 	virtual void instance_set_blend_shape_weight(RID p_instance, int p_shape, float p_weight) = 0;
 	virtual void instance_set_surface_material(RID p_instance, int p_surface, RID p_material) = 0;
 	virtual void instance_set_visible(RID p_instance, bool p_visible) = 0;
@@ -860,6 +862,9 @@ public:
 	virtual RID canvas_create() = 0;
 	virtual void canvas_set_item_mirroring(RID p_canvas, RID p_item, const Point2 &p_mirroring) = 0;
 	virtual void canvas_set_modulate(RID p_canvas, const Color &p_color) = 0;
+	virtual void canvas_set_parent(RID p_canvas, RID p_parent, float p_scale) = 0;
+
+	virtual void canvas_set_disable_scale(bool p_disable) = 0;
 
 	virtual RID canvas_item_create() = 0;
 	virtual void canvas_item_set_parent(RID p_item, RID p_parent) = 0;
@@ -895,7 +900,7 @@ public:
 	virtual void canvas_item_add_primitive(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs, RID p_texture, float p_width = 1.0, RID p_normal_map = RID()) = 0;
 	virtual void canvas_item_add_polygon(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), RID p_texture = RID(), RID p_normal_map = RID(), bool p_antialiased = false) = 0;
 	virtual void canvas_item_add_triangle_array(RID p_item, const Vector<int> &p_indices, const Vector<Point2> &p_points, const Vector<Color> &p_colors, const Vector<Point2> &p_uvs = Vector<Point2>(), const Vector<int> &p_bones = Vector<int>(), const Vector<float> &p_weights = Vector<float>(), RID p_texture = RID(), int p_count = -1, RID p_normal_map = RID()) = 0;
-	virtual void canvas_item_add_mesh(RID p_item, const RID &p_mesh, RID p_texture = RID(), RID p_normal_map = RID()) = 0;
+	virtual void canvas_item_add_mesh(RID p_item, const RID &p_mesh, const Transform2D &p_transform = Transform2D(), const Color &p_modulate = Color(1, 1, 1), RID p_texture = RID(), RID p_normal_map = RID()) = 0;
 	virtual void canvas_item_add_multimesh(RID p_item, RID p_mesh, RID p_texture = RID(), RID p_normal_map = RID()) = 0;
 	virtual void canvas_item_add_particles(RID p_item, RID p_particles, RID p_texture, RID p_normal_map) = 0;
 	virtual void canvas_item_add_set_transform(RID p_item, const Transform2D &p_transform) = 0;
diff --git a/thirdparty/README.md b/thirdparty/README.md
index 4fb4786d67..bc820634bb 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -1,6 +1,13 @@
 # Third party libraries
 
 
+## assimp
+
+- Upstream: http://github.com/assimp/assimp
+- Version: git (d3d98a7ec0c8d38e1952b46dfe53f7e9233dc92d)
+- License: BSD-3-Clause
+
+
 ## b2d_convexdecomp
 
 - Upstream: https://github.com/erincatto/Box2D/tree/master/Contributions/Utilities/ConvexDecomposition
@@ -115,7 +122,7 @@ Use UI font variant if available, because it has tight vertical metrics and good
 ## freetype
 
 - Upstream: https://www.freetype.org
-- Version: 2.9.1
+- Version: 2.10.0
 - License: FreeType License (BSD-like)
 
 Files extracted from upstream source:
@@ -163,7 +170,7 @@ Files extracted from upstream source:
 ## libpng
 
 - Upstream: http://libpng.org/pub/png/libpng.html
-- Version: 1.6.35
+- Version: 1.6.37
 - License: libpng/zlib
 
 Files extracted from upstream source:
@@ -178,18 +185,21 @@ Files extracted from upstream source:
 ## libsimplewebm
 
 - Upstream: https://github.com/zaps166/libsimplewebm
-- Version: git (05cfdc2, 2016)
-- License: MIT, BSD-3-Clause
+- Version: git (fe57fd3, 2019)
+- License: MIT (main), BSD-3-Clause (libwebm)
+
+This contains libwebm, but the version in use is updated from the one used by libsimplewebm,
+and may have *unmarked* alterations from that.
 
 Files extracted from upstream source:
 
-TODO.
+- all the .cpp, .hpp files in the main folder except `example.cpp`
+- LICENSE
 
 Important: Some files have Godot-made changes.
 They are marked with `// -- GODOT start --` and `// -- GODOT end --`
 comments.
 
-
 ## libtheora
 
 - Upstream: https://www.theora.org
@@ -255,17 +265,17 @@ changes are marked with `// -- GODOT --` comments.
 ## libwebsockets
 
 - Upstream: https://github.com/warmcat/libwebsockets
-- Version: 3.1.0
+- Version: 3.0.1
 - License: LGPLv2.1 + static linking exception
 
 File extracted from upstream source:
-- From `lib/` into `thirdparty/libwebsockets/lib`:
+- From `lib/` into `thirdparty/libwebsockets`:
   - Everything from `core`
-  - From `event-libs` only the `poll` subfolder and the `private.h` header
-  - From `misc` only `base64-decode.c`, `getifaddrs.c`, `getifaddrs.h`, `lejp.c`, and `sha-1.c` (and the `private.h` header)
-  - From `plat` everything from `unix` and `windows` (and the `private.h` header)
+  - From `event-libs` only the `poll` subfolder
+  - From `misc` only `base64-decode.c`, `getifaddrs.c`, `getifaddrs.h`, `lejp.c`, and `sha-1.c`
+  - From `plat` only `lws-plat-unix.c` and `lws-plat-win.c`
   - From `roles` only `private.h`, `h1`, `http`, `listen`, `pipe`, `raw`, `ws`
-    - From `roles/http` exclude `minilex.c` and the `compression` subfolder
+    - From `roles/http` exclude `minilex.c`
     - From `roles/http/server` exclude `access-log.c`, `lws-spa.c`, `ranges.c`, and `rewrite.c`
     - From `roles/ws` exclude `ext` folder.
   - From `tls` exclude `openssl` folder.
@@ -288,8 +298,12 @@ Godot build configurations, check them out when updating.
 File extracted from upstream release tarball `mbedtls-2.16.0-apache.tgz`:
 - All `*.h` from `include/mbedtls/` to `thirdparty/mbedtls/include/mbedtls/`
 - All `*.c` from `library/` to `thirdparty/mbedtls/library/`
-- Applied the patch in `thirdparty/mbedtls/1453.diff` (PR 1453). Soon to be merged upstream. Check it out at next update.
-- Applied the patch in `thirdparty/mbedtls/padlock.diff`. This disables VIA padlock support which defines a symbol `unsupported` which clashses with a symbol in libwebsockets.
+- Applied the patch in `thirdparty/mbedtls/1453.diff` (PR 1453).
+  Soon to be merged upstream. Check it out at next update.
+- Applied the patch in `thirdparty/mbedtls/padlock.diff`. This disables VIA
+  padlock support which defines a symbol `unsupported` which clashes with
+  a symbol in libwebsockets.
+
 
 ## miniupnpc
 
@@ -491,30 +505,46 @@ They are marked with `// -- GODOT start --` and `// -- GODOT end --`
 comments and a patch is provided in the squish/ folder.
 
 
-## thekla_atlas
-
-- Upstream: https://github.com/Thekla/thekla_atlas
-- Version: git (80a1430, 2017)
-- License: MIT
+## tinyexr
 
-Files extracted from the upstream source:
+- Upstream: https://github.com/syoyo/tinyexr
+- Version: git (65f9859, 2018)
+- License: BSD-3-Clause
 
-- Relevant sources from src/
-- License.txt
+Files extracted from upstream source:
 
-Important: Some files have Godot-made changes, those
-changes are marked with `// -- GODOT --` comments.
+- `tinyexr.{cc,h}`
 
 
-## tinyexr
+## vhacd
 
-- Upstream: https://github.com/syoyo/tinyexr
-- Version: git (65f9859, 2018)
+- Upstream: https://github.com/kmammou/v-hacd
+- Version: git (2297aa1, 2018)
 - License: BSD-3-Clause
 
 Files extracted from upstream source:
 
-- `tinyexr.{cc,h}`
+- From `src/VHACD_Lib/`: `inc`, `public` and `src`
+- `LICENSE`
+
+Some downstream changes have been made and are identified by
+`// -- GODOT start --` and `// -- GODOT end --` comments.
+They can be reapplied using the patches included in the `vhacd`
+folder.
+
+
+## xatlas
+
+- Upstream: https://github.com/jpcy/xatlas
+- Version: git (b8ec29b, 2018)
+- License: MIT
+
+Files extracted from upstream source:
+
+- `xatlas.{cpp,h}`
+
+Note: License is marked as Public Domain in the files, but it was
+later clarified upstream to MIT license.
 
 
 ## zlib
@@ -531,7 +561,7 @@ Files extracted from upstream source:
 ## zstd
 
 - Upstream: https://github.com/facebook/zstd
-- Version: 1.3.8
+- Version: 1.4.0
 - License: BSD-3-Clause
 
 Files extracted from upstream source:
diff --git a/thirdparty/assimp/CREDITS b/thirdparty/assimp/CREDITS
new file mode 100644
index 0000000000..26e21d2f41
--- /dev/null
+++ b/thirdparty/assimp/CREDITS
@@ -0,0 +1,183 @@
+===============================================================
+Open Asset Import Library (Assimp)
+Developers and Contributors
+===============================================================
+
+The following is a non-exhaustive list of all constributors over the years.
+If you think your name should be listed here, drop us a line and we'll add you.
+
+- Alexander Gessler,
+3DS-, BLEND-, ASE-, DXF-, HMP-, MDL-, MD2-, MD3-, MD5-, MDC-, NFF-, PLY-, STL-, RAW-, OFF-, MS3D-, Q3D- and LWO-Loader, Assimp-Viewer, assimp-cmd, -noboost, Website (Design).
+
+- Thomas Schulze,
+X-, Collada-, BVH-Loader, Postprocessing framework. Data structure & Interface design, documentation.
+
+- Kim Kulling,
+Obj-, Q3BSD-, OpenGEX-Loader, Logging system, CMake-build-environment, Linux-build, Website ( Admin ), Coverity ( Admin ), Glitter ( Admin ).
+
+- R.Schmidt,
+Linux build, eclipse support.
+
+- Matthias Gubisch,
+Assimp.net
+Visual Studio 9 support, bugfixes.
+
+- Mark Sibly
+B3D-Loader, Assimp testing
+
+- Jonathan Klein
+Ogre Loader, VC2010 fixes and CMake fixes.
+
+- Sebastian Hempel,
+PyAssimp (first version)
+Compile-Bugfixes for mingw, add environment for static library support in make.
+
+- Jonathan Pokrass
+Supplied a bugfix concerning the scaling in the md3 loader.
+
+- Andrew Galante,
+Submitted patches to make Assimp compile with GCC-4, a makefile and the xcode3 workspace.
+
+- Andreas Nagel
+First Assimp testing & verification under Windows Vista 64 Bit.
+
+- Marius Schr�der
+Allowed us to use many of his models for screenshots and testing.
+
+- Christian Schubert
+Supplied various XFiles for testing purposes.
+
+- Tizian Wieland
+Searched the web for hundreds of test models for internal use
+
+- John Connors
+Supplied patches for linux and SCons.
+
+- T. R.
+The GUY who performed some of the CSM mocaps.
+
+- Andy Maloney
+Contributed fixes for the documentation and the doxygen markup
+
+- Zhao Lei
+Contributed several bugfixes fixing memory leaks and improving float parsing 
+
+- sueastside
+Updated PyAssimp to the latest Assimp data structures and provided a script to keep the Python binding up-to-date.
+
+- Tobias Rittig
+Collada testing with Cinema 4D
+
+- Brad Grantham
+Improvements in OpenGL-Sample.
+
+- Robert Ramirez
+Add group loading feature to Obj-Loader.
+
+- Chris Maiwald
+Many bugreports, improving Assimp's portability, regular testing & feedback.
+
+- Stepan Hrbek
+Bugreport and fix for a obj-materialloader crash.
+
+- David Nadlinger
+D bindings, CMake install support.
+
+- Dario Accornero
+Contributed several patches regarding Mac OS/XCode targets, bug reports.
+
+- Martin Walser (Samhayne)
+Contributed the 'SimpleTexturedOpenGl' sample.
+
+- Matthias Fauconneau
+Contributed a fix for the Q3-BSP loader.
+
+- Jørgen P. Tjernø
+Contributed updated and improved xcode workspaces
+
+- drparallax
+Contributed the /samples/SimpleAssimpViewX sample
+
+- Carsten Fuchs
+Contributed a fix for the Normalize method in aiQuaternion.
+
+- dbburgess
+Contributes a Android-specific build issue: log the hardware architecture for ARM.
+
+- alfiereinre7
+Contributes a obj-fileparser fix: missing tokens in the obj-token list.
+
+- Roman Kharitonov
+Contributes a fix for the configure script environment.
+
+- Ed Diana
+Contributed AssimpDelphi (/port/AssimpDelphi).
+
+- rdb
+Contributes a bundle of fixes and improvements for the bsp-importer.
+
+- Mick P
+For contributing the De-bone postprocessing step and filing various bug reports.
+
+- Rosen Diankov
+Contributed patches to build assimp debian packages using cmake.
+
+- Mark Page
+Contributed a patch to fix the VertexTriangleAdjacency postprocessing step.
+
+- IOhannes
+Contributed the Debian build fixes ( architecture macro ).
+
+- gellule
+Several LWO and LWS fixes (pivoting). 
+
+- Marcel Metz
+GCC/Linux fixes for the SimpleOpenGL sample.
+
+- Brian Miller
+Bugfix for a compiler fix for iOS on arm.
+
+- Séverin Lemaignan
+Rewrite of PyAssimp, distutils and Python3 support
+
+- albert-wang
+Bugfixes for the collada parser
+
+- Ya ping Jin
+Bugfixes for uv-tanget calculation.
+
+- Jonne Nauha
+Ogre Binary format support
+
+- Filip Wasil, Tieto Poland Sp. z o.o.
+Android JNI asset extraction support
+
+- Richard Steffen
+Contributed ExportProperties interface
+Contributed X File exporter
+Contributed Step (stp) exporter
+
+- Thomas Iorns (mesilliac)
+Initial FBX Export support
+
+For a more detailed list just check: https://github.com/assimp/assimp/network/members
+
+
+========
+Patreons
+========
+
+Huge thanks to our Patreons!
+
+- migenius
+- Marcus
+- Cort
+- elect
+- Steffen
+
+
+===================
+Commercial Sponsors
+===================
+
+- MyDidimo (mydidimo.com): Sponsored development of FBX Export support
diff --git a/thirdparty/assimp/LICENSE b/thirdparty/assimp/LICENSE
new file mode 100644
index 0000000000..262606aff3
--- /dev/null
+++ b/thirdparty/assimp/LICENSE
@@ -0,0 +1,78 @@
+Open Asset Import Library (assimp)
+
+Copyright (c) 2006-2016, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+
+******************************************************************************
+
+AN EXCEPTION applies to all files in the ./test/models-nonbsd folder.
+These are 3d models for testing purposes, from various free sources
+on the internet. They are - unless otherwise stated - copyright of
+their respective creators, which may impose additional requirements
+on the use of their work. For any of these models, see
+<model-name>.source.txt for more legal information. Contact us if you
+are a copyright holder and believe that we credited you inproperly or
+if you don't want your files to appear in the repository.
+
+
+******************************************************************************
+
+Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
+http://code.google.com/p/poly2tri/
+
+All rights reserved.
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+* Neither the name of Poly2Tri nor the names of its contributors may be
+  used to endorse or promote products derived from this software without specific
+  prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/thirdparty/assimp/assimp/config.h b/thirdparty/assimp/assimp/config.h
new file mode 100644
index 0000000000..8b0634d28b
--- /dev/null
+++ b/thirdparty/assimp/assimp/config.h
@@ -0,0 +1,980 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2018, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file config.h
+ *  @brief Defines constants for configurable properties for the library
+ *
+ *  Typically these properties are set via
+ *  #Assimp::Importer::SetPropertyFloat,
+ *  #Assimp::Importer::SetPropertyInteger or
+ *  #Assimp::Importer::SetPropertyString,
+ *  depending on the data type of a property. All properties have a
+ *  default value. See the doc for the mentioned methods for more details.
+ *
+ *  <br><br>
+ *  The corresponding functions for use with the plain-c API are:
+ *  #aiSetImportPropertyInteger,
+ *  #aiSetImportPropertyFloat,
+ *  #aiSetImportPropertyString
+ */
+#pragma once
+#ifndef AI_CONFIG_H_INC
+#define AI_CONFIG_H_INC
+
+// ###########################################################################
+// LIBRARY SETTINGS
+// General, global settings
+// ###########################################################################
+
+// ---------------------------------------------------------------------------
+/** @brief Enables time measurements.
+ *
+ *  If enabled, measures the time needed for each part of the loading
+ *  process (i.e. IO time, importing, postprocessing, ..) and dumps
+ *  these timings to the DefaultLogger. See the @link perf Performance
+ *  Page@endlink for more information on this topic.
+ *
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_GLOB_MEASURE_TIME \
+	"GLOB_MEASURE_TIME"
+
+// ---------------------------------------------------------------------------
+/** @brief Global setting to disable generation of skeleton dummy meshes
+ *
+ * Skeleton dummy meshes are generated as a visualization aid in cases which
+ * the input data contains no geometry, but only animation data.
+ * Property data type: bool. Default value: false
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_IMPORT_NO_SKELETON_MESHES \
+	"IMPORT_NO_SKELETON_MESHES"
+
+#if 0 // not implemented yet
+// ---------------------------------------------------------------------------
+/** @brief Set Assimp's multithreading policy.
+ *
+ * This setting is ignored if Assimp was built without boost.thread
+ * support (ASSIMP_BUILD_NO_THREADING, which is implied by ASSIMP_BUILD_BOOST_WORKAROUND).
+ * Possible values are: -1 to let Assimp decide what to do, 0 to disable
+ * multithreading entirely and any number larger than 0 to force a specific
+ * number of threads. Assimp is always free to ignore this settings, which is
+ * merely a hint. Usually, the default value (-1) will be fine. However, if
+ * Assimp is used concurrently from multiple user threads, it might be useful
+ * to limit each Importer instance to a specific number of cores.
+ *
+ * For more information, see the @link threading Threading page@endlink.
+ * Property type: int, default value: -1.
+ */
+#define AI_CONFIG_GLOB_MULTITHREADING \
+	"GLOB_MULTITHREADING"
+#endif
+
+// ###########################################################################
+// POST PROCESSING SETTINGS
+// Various stuff to fine-tune the behavior of a specific post processing step.
+// ###########################################################################
+
+// ---------------------------------------------------------------------------
+/** @brief Maximum bone count per mesh for the SplitbyBoneCount step.
+ *
+ * Meshes are split until the maximum number of bones is reached. The default
+ * value is AI_SBBC_DEFAULT_MAX_BONES, which may be altered at
+ * compile-time.
+ * Property data type: integer.
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_PP_SBBC_MAX_BONES \
+	"PP_SBBC_MAX_BONES"
+
+// default limit for bone count
+#if (!defined AI_SBBC_DEFAULT_MAX_BONES)
+#define AI_SBBC_DEFAULT_MAX_BONES 60
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief  Specifies the maximum angle that may be between two vertex tangents
+ *         that their tangents and bi-tangents are smoothed.
+ *
+ * This applies to the CalcTangentSpace-Step. The angle is specified
+ * in degrees. The maximum value is 175.
+ * Property type: float. Default value: 45 degrees
+ */
+#define AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE \
+	"PP_CT_MAX_SMOOTHING_ANGLE"
+
+// ---------------------------------------------------------------------------
+/** @brief Source UV channel for tangent space computation.
+ *
+ * The specified channel must exist or an error will be raised.
+ * Property type: integer. Default value: 0
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_PP_CT_TEXTURE_CHANNEL_INDEX \
+	"PP_CT_TEXTURE_CHANNEL_INDEX"
+
+// ---------------------------------------------------------------------------
+/** @brief  Specifies the maximum angle that may be between two face normals
+ *          at the same vertex position that their are smoothed together.
+ *
+ * Sometimes referred to as 'crease angle'.
+ * This applies to the GenSmoothNormals-Step. The angle is specified
+ * in degrees, so 180 is PI. The default value is 175 degrees (all vertex
+ * normals are smoothed). The maximum value is 175, too. Property type: float.
+ * Warning: setting this option may cause a severe loss of performance. The
+ * performance is unaffected if the #AI_CONFIG_FAVOUR_SPEED flag is set but
+ * the output quality may be reduced.
+ */
+#define AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE \
+	"PP_GSN_MAX_SMOOTHING_ANGLE"
+
+// ---------------------------------------------------------------------------
+/** @brief Sets the colormap (= palette) to be used to decode embedded
+ *         textures in MDL (Quake or 3DGS) files.
+ *
+ * This must be a valid path to a file. The file is 768 (256*3) bytes
+ * large and contains RGB triplets for each of the 256 palette entries.
+ * The default value is colormap.lmp. If the file is not found,
+ * a default palette (from Quake 1) is used.
+ * Property type: string.
+ */
+#define AI_CONFIG_IMPORT_MDL_COLORMAP \
+	"IMPORT_MDL_COLORMAP"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_RemoveRedundantMaterials step to
+ *  keep materials matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in *single*
+ * quotation marks. For example:<tt>
+ * "keep-me and_me_to anotherMaterialToBeKept \'name with whitespace\'"</tt>.
+ * If a material matches on of these names, it will not be modified or
+ * removed by the postprocessing step nor will other materials be replaced
+ * by a reference to it. <br>
+ * This option might be useful if you are using some magic material names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for materials not contained in the list.
+ * Property type: String. Default value: n/a
+ * @note Linefeeds, tabs or carriage returns are treated as whitespace.
+ *   Material names are case sensitive.
+ */
+#define AI_CONFIG_PP_RRM_EXCLUDE_LIST \
+	"PP_RRM_EXCLUDE_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to
+ *  keep the scene hierarchy. Meshes are moved to worldspace, but
+ *  no optimization is performed (read: meshes with equal materials are not
+ *  joined. The total number of meshes won't change).
+ *
+ * This option could be of use for you if the scene hierarchy contains
+ * important additional information which you intend to parse.
+ * For rendering, you can still render all meshes in the scene without
+ * any transformations.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_PTV_KEEP_HIERARCHY \
+	"PP_PTV_KEEP_HIERARCHY"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to normalize
+ *  all vertex components into the [-1,1] range. That is, a bounding box
+ *  for the whole scene is computed, the maximum component is taken and all
+ *  meshes are scaled appropriately (uniformly of course!).
+ *  This might be useful if you don't know the spatial dimension of the input
+ *  data*/
+#define AI_CONFIG_PP_PTV_NORMALIZE \
+	"PP_PTV_NORMALIZE"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to use
+ *  a users defined matrix as the scene root node transformation before
+ *  transforming vertices.
+ *  Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION \
+	"PP_PTV_ADD_ROOT_TRANSFORMATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to use
+ *  a users defined matrix as the scene root node transformation before
+ *  transforming vertices. This property correspond to the 'a1' component
+ *  of the transformation matrix.
+ *  Property type: aiMatrix4x4.
+ */
+#define AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION \
+	"PP_PTV_ROOT_TRANSFORMATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_FindDegenerates step to
+ *  remove degenerated primitives from the import - immediately.
+ *
+ * The default behaviour converts degenerated triangles to lines and
+ * degenerated lines to points. See the documentation to the
+ * #aiProcess_FindDegenerates step for a detailed example of the various ways
+ * to get rid of these lines and points if you don't want them.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_FD_REMOVE \
+	"PP_FD_REMOVE"
+
+// ---------------------------------------------------------------------------
+/**
+ *  @brief  Configures the #aiProcess_FindDegenerates to check the area of a
+ *  trinagle to be greates than e-6. If this is not the case the triangle will
+ *  be removed if #AI_CONFIG_PP_FD_REMOVE is set to true.
+ */
+#define AI_CONFIG_PP_FD_CHECKAREA \
+	"PP_FD_CHECKAREA"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_OptimizeGraph step to preserve nodes
+ * matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in *single*
+ * quotation marks. For example:<tt>
+ * "keep-me and_me_to anotherNodeToBeKept \'name with whitespace\'"</tt>.
+ * If a node matches on of these names, it will not be modified or
+ * removed by the postprocessing step.<br>
+ * This option might be useful if you are using some magic node names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for nodes not contained in the list.
+ * Property type: String. Default value: n/a
+ * @note Linefeeds, tabs or carriage returns are treated as whitespace.
+ *   Node names are case sensitive.
+ */
+#define AI_CONFIG_PP_OG_EXCLUDE_LIST \
+	"PP_OG_EXCLUDE_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the maximum number of triangles in a mesh.
+ *
+ * This is used by the "SplitLargeMeshes" PostProcess-Step to determine
+ * whether a mesh must be split or not.
+ * @note The default value is AI_SLM_DEFAULT_MAX_TRIANGLES
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_SLM_TRIANGLE_LIMIT \
+	"PP_SLM_TRIANGLE_LIMIT"
+
+// default value for AI_CONFIG_PP_SLM_TRIANGLE_LIMIT
+#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
+#define AI_SLM_DEFAULT_MAX_TRIANGLES 1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the maximum number of vertices in a mesh.
+ *
+ * This is used by the "SplitLargeMeshes" PostProcess-Step to determine
+ * whether a mesh must be split or not.
+ * @note The default value is AI_SLM_DEFAULT_MAX_VERTICES
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_SLM_VERTEX_LIMIT \
+	"PP_SLM_VERTEX_LIMIT"
+
+// default value for AI_CONFIG_PP_SLM_VERTEX_LIMIT
+#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
+#define AI_SLM_DEFAULT_MAX_VERTICES 1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the maximum number of bones affecting a single vertex
+ *
+ * This is used by the #aiProcess_LimitBoneWeights PostProcess-Step.
+ * @note The default value is AI_LMW_MAX_WEIGHTS
+ * Property type: integer.*/
+#define AI_CONFIG_PP_LBW_MAX_WEIGHTS \
+	"PP_LBW_MAX_WEIGHTS"
+
+// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
+#if (!defined AI_LMW_MAX_WEIGHTS)
+#define AI_LMW_MAX_WEIGHTS 0x4
+#endif // !! AI_LMW_MAX_WEIGHTS
+
+// ---------------------------------------------------------------------------
+/** @brief Lower the deboning threshold in order to remove more bones.
+ *
+ * This is used by the #aiProcess_Debone PostProcess-Step.
+ * @note The default value is AI_DEBONE_THRESHOLD
+ * Property type: float.*/
+#define AI_CONFIG_PP_DB_THRESHOLD \
+	"PP_DB_THRESHOLD"
+
+// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
+#if (!defined AI_DEBONE_THRESHOLD)
+#define AI_DEBONE_THRESHOLD 1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+// ---------------------------------------------------------------------------
+/** @brief Require all bones qualify for deboning before removing any
+ *
+ * This is used by the #aiProcess_Debone PostProcess-Step.
+ * @note The default value is 0
+ * Property type: bool.*/
+#define AI_CONFIG_PP_DB_ALL_OR_NONE \
+	"PP_DB_ALL_OR_NONE"
+
+/** @brief Default value for the #AI_CONFIG_PP_ICL_PTCACHE_SIZE property
+ */
+#ifndef PP_ICL_PTCACHE_SIZE
+#define PP_ICL_PTCACHE_SIZE 12
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the size of the post-transform vertex cache to optimize the
+ *    vertices for. This configures the #aiProcess_ImproveCacheLocality step.
+ *
+ * The size is given in vertices. Of course you can't know how the vertex
+ * format will exactly look like after the import returns, but you can still
+ * guess what your meshes will probably have.
+ * @note The default value is #PP_ICL_PTCACHE_SIZE. That results in slight
+ * performance improvements for most nVidia/AMD cards since 2002.
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_ICL_PTCACHE_SIZE "PP_ICL_PTCACHE_SIZE"
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates components of the aiScene and aiMesh data structures
+ *  that can be excluded from the import using the #aiProcess_RemoveComponent step.
+ *
+ *  See the documentation to #aiProcess_RemoveComponent for more details.
+ */
+enum aiComponent {
+/** Normal vectors */
+#ifdef SWIG
+    aiComponent_NORMALS = 0x2,
+#else
+	aiComponent_NORMALS = 0x2u,
+#endif
+
+/** Tangents and bitangents go always together ... */
+#ifdef SWIG
+    aiComponent_TANGENTS_AND_BITANGENTS = 0x4,
+#else
+	aiComponent_TANGENTS_AND_BITANGENTS = 0x4u,
+#endif
+
+	/** ALL color sets
+     * Use aiComponent_COLORn(N) to specify the N'th set */
+	aiComponent_COLORS = 0x8,
+
+	/** ALL texture UV sets
+     * aiComponent_TEXCOORDn(N) to specify the N'th set  */
+	aiComponent_TEXCOORDS = 0x10,
+
+	/** Removes all bone weights from all meshes.
+     * The scenegraph nodes corresponding to the bones are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+	aiComponent_BONEWEIGHTS = 0x20,
+
+	/** Removes all node animations (aiScene::mAnimations).
+     * The corresponding scenegraph nodes are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+	aiComponent_ANIMATIONS = 0x40,
+
+	/** Removes all embedded textures (aiScene::mTextures) */
+	aiComponent_TEXTURES = 0x80,
+
+	/** Removes all light sources (aiScene::mLights).
+     * The corresponding scenegraph nodes are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+	aiComponent_LIGHTS = 0x100,
+
+	/** Removes all cameras (aiScene::mCameras).
+     * The corresponding scenegraph nodes are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+	aiComponent_CAMERAS = 0x200,
+
+	/** Removes all meshes (aiScene::mMeshes). */
+	aiComponent_MESHES = 0x400,
+
+	/** Removes all materials. One default material will
+     * be generated, so aiScene::mNumMaterials will be 1. */
+	aiComponent_MATERIALS = 0x800,
+
+/** This value is not used. It is just there to force the
+     *  compiler to map this enum to a 32 Bit integer. */
+#ifndef SWIG
+	_aiComponent_Force32Bit = 0x9fffffff
+#endif
+};
+
+// Remove a specific color channel 'n'
+#define aiComponent_COLORSn(n) (1u << (n + 20u))
+
+// Remove a specific UV channel 'n'
+#define aiComponent_TEXCOORDSn(n) (1u << (n + 25u))
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_RemoveComponent step:
+ *  Specifies the parts of the data structure to be removed.
+ *
+ * See the documentation to this step for further details. The property
+ * is expected to be an integer, a bitwise combination of the
+ * #aiComponent flags defined above in this header. The default
+ * value is 0. Important: if no valid mesh is remaining after the
+ * step has been executed (e.g you thought it was funny to specify ALL
+ * of the flags defined above) the import FAILS. Mainly because there is
+ * no data to work on anymore ...
+ */
+#define AI_CONFIG_PP_RVC_FLAGS \
+	"PP_RVC_FLAGS"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_SortByPType step:
+ *  Specifies which primitive types are removed by the step.
+ *
+ *  This is a bitwise combination of the aiPrimitiveType flags.
+ *  Specifying all of them is illegal, of course. A typical use would
+ *  be to exclude all line and point meshes from the import. This
+ *  is an integer property, its default value is 0.
+ */
+#define AI_CONFIG_PP_SBP_REMOVE \
+	"PP_SBP_REMOVE"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_FindInvalidData step:
+ *  Specifies the floating-point accuracy for animation values. The step
+ *  checks for animation tracks where all frame values are absolutely equal
+ *  and removes them. This tweakable controls the epsilon for floating-point
+ *  comparisons - two keys are considered equal if the invariant
+ *  abs(n0-n1)>epsilon holds true for all vector respectively quaternion
+ *  components. The default value is 0.f - comparisons are exact then.
+ */
+#define AI_CONFIG_PP_FID_ANIM_ACCURACY \
+	"PP_FID_ANIM_ACCURACY"
+
+// TransformUVCoords evaluates UV scalings
+#define AI_UVTRAFO_SCALING 0x1
+
+// TransformUVCoords evaluates UV rotations
+#define AI_UVTRAFO_ROTATION 0x2
+
+// TransformUVCoords evaluates UV translation
+#define AI_UVTRAFO_TRANSLATION 0x4
+
+// Everything baked together -> default value
+#define AI_UVTRAFO_ALL (AI_UVTRAFO_SCALING | AI_UVTRAFO_ROTATION | AI_UVTRAFO_TRANSLATION)
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_FindInvalidData step:
+ *  Set to true to ignore texture coordinates. This may be useful if you have
+ *  to assign different kind of textures like one for the summer or one for the winter.
+ */
+#define AI_CONFIG_PP_FID_IGNORE_TEXTURECOORDS \
+	"PP_FID_IGNORE_TEXTURECOORDS"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_TransformUVCoords step:
+ *  Specifies which UV transformations are evaluated.
+ *
+ *  This is a bitwise combination of the AI_UVTRAFO_XXX flags (integer
+ *  property, of course). By default all transformations are enabled
+ * (AI_UVTRAFO_ALL).
+ */
+#define AI_CONFIG_PP_TUV_EVALUATE \
+	"PP_TUV_EVALUATE"
+
+// ---------------------------------------------------------------------------
+/** @brief A hint to assimp to favour speed against import quality.
+ *
+ * Enabling this option may result in faster loading, but it needn't.
+ * It represents just a hint to loaders and post-processing steps to use
+ * faster code paths, if possible.
+ * This property is expected to be an integer, != 0 stands for true.
+ * The default value is 0.
+ */
+#define AI_CONFIG_FAVOUR_SPEED \
+	"FAVOUR_SPEED"
+
+// ###########################################################################
+// IMPORTER SETTINGS
+// Various stuff to fine-tune the behaviour of specific importer plugins.
+// ###########################################################################
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will merge all geometry layers present
+ *    in the source file or take only the first.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS \
+	"IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read all materials present in the
+ *    source file or take only the referenced materials.
+ *
+ * This is void unless IMPORT_FBX_READ_MATERIALS=1.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ALL_MATERIALS \
+	"IMPORT_FBX_READ_ALL_MATERIALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read materials.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_MATERIALS \
+	"IMPORT_FBX_READ_MATERIALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read embedded textures.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_TEXTURES \
+	"IMPORT_FBX_READ_TEXTURES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read cameras.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_CAMERAS \
+	"IMPORT_FBX_READ_CAMERAS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read light sources.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_LIGHTS \
+	"IMPORT_FBX_READ_LIGHTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read animations.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ANIMATIONS \
+	"IMPORT_FBX_READ_ANIMATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will act in strict mode in which only
+ *    FBX 2013 is supported and any other sub formats are rejected. FBX 2013
+ *    is the primary target for the importer, so this format is best
+ *    supported and well-tested.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_STRICT_MODE \
+	"IMPORT_FBX_STRICT_MODE"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will preserve pivot points for
+ *    transformations (as extra nodes). If set to false, pivots and offsets
+ *    will be evaluated whenever possible.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS \
+	"IMPORT_FBX_PRESERVE_PIVOTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the importer will drop empty animation curves or
+ *    animation curves which match the bind pose transformation over their
+ *    entire defined range.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES \
+	"IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will use the legacy embedded texture naming.
+*
+* The default value is false (0)
+* Property type: bool
+*/
+#define AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING \
+	"AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING"
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the vertex animation keyframe to be imported
+ *
+ * ASSIMP does not support vertex keyframes (only bone animation is supported).
+ * The library reads only one frame of models with vertex animations.
+ * By default this is the first frame.
+ * \note The default value is 0. This option applies to all importers.
+ *   However, it is also possible to override the global setting
+ *   for a specific loader. You can use the AI_CONFIG_IMPORT_XXX_KEYFRAME
+ *   options (where XXX is a placeholder for the file format for which you
+ *   want to override the global setting).
+ * Property type: integer.
+ */
+#define AI_CONFIG_IMPORT_GLOBAL_KEYFRAME "IMPORT_GLOBAL_KEYFRAME"
+
+#define AI_CONFIG_IMPORT_MD3_KEYFRAME "IMPORT_MD3_KEYFRAME"
+#define AI_CONFIG_IMPORT_MD2_KEYFRAME "IMPORT_MD2_KEYFRAME"
+#define AI_CONFIG_IMPORT_MDL_KEYFRAME "IMPORT_MDL_KEYFRAME"
+#define AI_CONFIG_IMPORT_MDC_KEYFRAME "IMPORT_MDC_KEYFRAME"
+#define AI_CONFIG_IMPORT_SMD_KEYFRAME "IMPORT_SMD_KEYFRAME"
+#define AI_CONFIG_IMPORT_UNREAL_KEYFRAME "IMPORT_UNREAL_KEYFRAME"
+
+// ---------------------------------------------------------------------------
+/** Smd load multiple animations
+ *
+ *  Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_SMD_LOAD_ANIMATION_LIST "IMPORT_SMD_LOAD_ANIMATION_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the AC loader to collect all surfaces which have the
+ *    "Backface cull" flag set in separate meshes.
+ *
+ *  Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_AC_SEPARATE_BFCULL \
+	"IMPORT_AC_SEPARATE_BFCULL"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures whether the AC loader evaluates subdivision surfaces (
+ *  indicated by the presence of the 'subdiv' attribute in the file). By
+ *  default, Assimp performs the subdivision using the standard
+ *  Catmull-Clark algorithm
+ *
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_AC_EVAL_SUBDIVISION \
+	"IMPORT_AC_EVAL_SUBDIVISION"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the UNREAL 3D loader to separate faces with different
+ *    surface flags (e.g. two-sided vs. single-sided).
+ *
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS \
+	"UNREAL_HANDLE_FLAGS"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the terragen import plugin to compute uv's for
+ *  terrains, if not given. Furthermore a default texture is assigned.
+ *
+ * UV coordinates for terrains are so simple to compute that you'll usually
+ * want to compute them on your own, if you need them. This option is intended
+ * for model viewers which want to offer an easy way to apply textures to
+ * terrains.
+ * * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_TER_MAKE_UVS \
+	"IMPORT_TER_MAKE_UVS"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the ASE loader to always reconstruct normal vectors
+ *  basing on the smoothing groups loaded from the file.
+ *
+ * Some ASE files have carry invalid normals, other don't.
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_ASE_RECONSTRUCT_NORMALS \
+	"IMPORT_ASE_RECONSTRUCT_NORMALS"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the M3D loader to detect and process multi-part
+ *    Quake player models.
+ *
+ * These models usually consist of 3 files, lower.md3, upper.md3 and
+ * head.md3. If this property is set to true, Assimp will try to load and
+ * combine all three files if one of them is loaded.
+ * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_MD3_HANDLE_MULTIPART \
+	"IMPORT_MD3_HANDLE_MULTIPART"
+
+// ---------------------------------------------------------------------------
+/** @brief  Tells the MD3 loader which skin files to load.
+ *
+ * When loading MD3 files, Assimp checks whether a file
+ * [md3_file_name]_[skin_name].skin is existing. These files are used by
+ * Quake III to be able to assign different skins (e.g. red and blue team)
+ * to models. 'default', 'red', 'blue' are typical skin names.
+ * Property type: String. Default value: "default".
+ */
+#define AI_CONFIG_IMPORT_MD3_SKIN_NAME \
+	"IMPORT_MD3_SKIN_NAME"
+
+// ---------------------------------------------------------------------------
+/** @brief  Specify the Quake 3 shader file to be used for a particular
+ *  MD3 file. This can also be a search path.
+ *
+ * By default Assimp's behaviour is as follows: If a MD3 file
+ * <tt>any_path/models/any_q3_subdir/model_name/file_name.md3</tt> is
+ * loaded, the library tries to locate the corresponding shader file in
+ * <tt>any_path/scripts/model_name.shader</tt>. This property overrides this
+ * behaviour. It can either specify a full path to the shader to be loaded
+ * or alternatively the path (relative or absolute) to the directory where
+ * the shaders for all MD3s to be loaded reside. Assimp attempts to open
+ * <tt>IMPORT_MD3_SHADER_SRC/model_name.shader</tt> first, <tt>IMPORT_MD3_SHADER_SRC/file_name.shader</tt>
+ * is the fallback file. Note that IMPORT_MD3_SHADER_SRC should have a terminal (back)slash.
+ * Property type: String. Default value: n/a.
+ */
+#define AI_CONFIG_IMPORT_MD3_SHADER_SRC \
+	"IMPORT_MD3_SHADER_SRC"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the LWO loader to load just one layer from the model.
+ *
+ * LWO files consist of layers and in some cases it could be useful to load
+ * only one of them. This property can be either a string - which specifies
+ * the name of the layer - or an integer - the index of the layer. If the
+ * property is not set the whole LWO model is loaded. Loading fails if the
+ * requested layer is not available. The layer index is zero-based and the
+ * layer name may not be empty.<br>
+ * Property type: Integer. Default value: all layers are loaded.
+ */
+#define AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY \
+	"IMPORT_LWO_ONE_LAYER_ONLY"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the MD5 loader to not load the MD5ANIM file for
+ *  a MD5MESH file automatically.
+ *
+ * The default strategy is to look for a file with the same name but the
+ * MD5ANIM extension in the same directory. If it is found, it is loaded
+ * and combined with the MD5MESH file. This configuration option can be
+ * used to disable this behaviour.
+ *
+ * * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_MD5_NO_ANIM_AUTOLOAD \
+	"IMPORT_MD5_NO_ANIM_AUTOLOAD"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the begin of the time range for which the LWS loader
+ *    evaluates animations and computes aiNodeAnim's.
+ *
+ * Assimp provides full conversion of LightWave's envelope system, including
+ * pre and post conditions. The loader computes linearly subsampled animation
+ * chanels with the frame rate given in the LWS file. This property defines
+ * the start time. Note: animation channels are only generated if a node
+ * has at least one envelope with more tan one key assigned. This property.
+ * is given in frames, '0' is the first frame. By default, if this property
+ * is not set, the importer takes the animation start from the input LWS
+ * file ('FirstFrame' line)<br>
+ * Property type: Integer. Default value: taken from file.
+ *
+ * @see AI_CONFIG_IMPORT_LWS_ANIM_END - end of the imported time range
+ */
+#define AI_CONFIG_IMPORT_LWS_ANIM_START \
+	"IMPORT_LWS_ANIM_START"
+#define AI_CONFIG_IMPORT_LWS_ANIM_END \
+	"IMPORT_LWS_ANIM_END"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the output frame rate of the IRR loader.
+ *
+ * IRR animations are difficult to convert for Assimp and there will
+ * always be a loss of quality. This setting defines how many keys per second
+ * are returned by the converter.<br>
+ * Property type: integer. Default value: 100
+ */
+#define AI_CONFIG_IMPORT_IRR_ANIM_FPS \
+	"IMPORT_IRR_ANIM_FPS"
+
+// ---------------------------------------------------------------------------
+/** @brief Ogre Importer will try to find referenced materials from this file.
+ *
+ * Ogre meshes reference with material names, this does not tell Assimp the file
+ * where it is located in. Assimp will try to find the source file in the following
+ * order: <material-name>.material, <mesh-filename-base>.material and
+ * lastly the material name defined by this config property.
+ * <br>
+ * Property type: String. Default value: Scene.material.
+ */
+#define AI_CONFIG_IMPORT_OGRE_MATERIAL_FILE \
+	"IMPORT_OGRE_MATERIAL_FILE"
+
+// ---------------------------------------------------------------------------
+/** @brief Ogre Importer detect the texture usage from its filename.
+ *
+ * Ogre material texture units do not define texture type, the textures usage
+ * depends on the used shader or Ogre's fixed pipeline. If this config property
+ * is true Assimp will try to detect the type from the textures filename postfix:
+ * _n, _nrm, _nrml, _normal, _normals and _normalmap for normal map, _s, _spec,
+ * _specular and _specularmap for specular map, _l, _light, _lightmap, _occ
+ * and _occlusion for light map, _disp and _displacement for displacement map.
+ * The matching is case insensitive. Post fix is taken between the last
+ * underscore and the last period.
+ * Default behavior is to detect type from lower cased texture unit name by
+ * matching against: normalmap, specularmap, lightmap and displacementmap.
+ * For both cases if no match is found aiTextureType_DIFFUSE is used.
+ * <br>
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_OGRE_TEXTURETYPE_FROM_FILENAME \
+	"IMPORT_OGRE_TEXTURETYPE_FROM_FILENAME"
+
+/** @brief Specifies whether the Android JNI asset extraction is supported.
+  *
+  * Turn on this option if you want to manage assets in native
+  * Android application without having to keep the internal directory and asset
+  * manager pointer.
+  */
+#define AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT "AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the IFC loader skips over IfcSpace elements.
+ *
+ * IfcSpace elements (and their geometric representations) are used to
+ * represent, well, free space in a building storey.<br>
+ * Property type: Bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_IFC_SKIP_SPACE_REPRESENTATIONS "IMPORT_IFC_SKIP_SPACE_REPRESENTATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the IFC loader will use its own, custom triangulation
+ *   algorithm to triangulate wall and floor meshes.
+ *
+ * If this property is set to false, walls will be either triangulated by
+ * #aiProcess_Triangulate or will be passed through as huge polygons with
+ * faked holes (i.e. holes that are connected with the outer boundary using
+ * a dummy edge). It is highly recommended to set this property to true
+ * if you want triangulated data because #aiProcess_Triangulate is known to
+ * have problems with the kind of polygons that the IFC loader spits out for
+ * complicated meshes.
+ * Property type: Bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_IFC_CUSTOM_TRIANGULATION "IMPORT_IFC_CUSTOM_TRIANGULATION"
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the tessellation conic angle for IFC smoothing curves.
+ *
+ * This is used by the IFC importer to determine the tessellation parameter
+ * for smoothing curves.
+ * @note The default value is AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE and the
+ * accepted values are in range [5.0, 120.0].
+ * Property type: Float.
+ */
+#define AI_CONFIG_IMPORT_IFC_SMOOTHING_ANGLE "IMPORT_IFC_SMOOTHING_ANGLE"
+
+// default value for AI_CONFIG_IMPORT_IFC_SMOOTHING_ANGLE
+#if (!defined AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE)
+#define AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE 10.0f
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the tessellation for IFC cylindrical shapes.
+ *
+ * This is used by the IFC importer to determine the tessellation parameter
+ * for cylindrical shapes, i.e. the number of segments used to approximate a circle.
+ * @note The default value is AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION and the
+ * accepted values are in range [3, 180].
+ * Property type: Integer.
+ */
+#define AI_CONFIG_IMPORT_IFC_CYLINDRICAL_TESSELLATION "IMPORT_IFC_CYLINDRICAL_TESSELLATION"
+
+// default value for AI_CONFIG_IMPORT_IFC_CYLINDRICAL_TESSELLATION
+#if (!defined AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION)
+#define AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION 32
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the Collada loader will ignore the provided up direction.
+ *
+ * If this property is set to true, the up direction provided in the file header will
+ * be ignored and the file will be loaded as is.
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION "IMPORT_COLLADA_IGNORE_UP_DIRECTION"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the Collada loader should use Collada names as node names.
+ *
+ * If this property is set to true, the Collada names will be used as the
+ * node name. The default is to use the id tag (resp. sid tag, if no id tag is present)
+ * instead.
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_COLLADA_USE_COLLADA_NAMES "IMPORT_COLLADA_USE_COLLADA_NAMES"
+
+// ---------- All the Export defines ------------
+
+/** @brief Specifies the xfile use double for real values of float
+ *
+ * Property type: Bool. Default value: false.
+ */
+
+#define AI_CONFIG_EXPORT_XFILE_64BIT "EXPORT_XFILE_64BIT"
+
+/**
+ *
+ */
+#define AI_CONFIG_EXPORT_POINT_CLOUDS "EXPORT_POINT_CLOUDS"
+
+/**
+ *  @brief  Specifies a gobal key factor for scale, float value
+ */
+#define AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY "GLOBAL_SCALE_FACTOR"
+
+#if (!defined AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT)
+#define AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT 1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+// ---------- All the Build/Compile-time defines ------------
+
+/** @brief Specifies if double precision is supported inside assimp
+ *
+ * Property type: Bool. Default value: undefined.
+ */
+
+/* #cmakedefine ASSIMP_DOUBLE_PRECISION 1 */
+
+#endif // !! AI_CONFIG_H_INC
diff --git a/thirdparty/assimp/code/BaseImporter.cpp b/thirdparty/assimp/code/BaseImporter.cpp
new file mode 100644
index 0000000000..4803c6d6f2
--- /dev/null
+++ b/thirdparty/assimp/code/BaseImporter.cpp
@@ -0,0 +1,616 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  BaseImporter.cpp
+ *  @brief Implementation of BaseImporter
+ */
+
+#include <assimp/BaseImporter.h>
+#include <assimp/ParsingUtils.h>
+#include "FileSystemFilter.h"
+#include "Importer.h"
+#include <assimp/ByteSwapper.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+#include <assimp/postprocess.h>
+#include <assimp/importerdesc.h>
+
+#include <ios>
+#include <list>
+#include <memory>
+#include <sstream>
+#include <cctype>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+BaseImporter::BaseImporter() AI_NO_EXCEPT
+: m_progress() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+BaseImporter::~BaseImporter() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Imports the given file and returns the imported data.
+aiScene* BaseImporter::ReadFile(const Importer* pImp, const std::string& pFile, IOSystem* pIOHandler) {
+    m_progress = pImp->GetProgressHandler();
+    if (nullptr == m_progress) {
+        return nullptr;
+    }
+
+    ai_assert(m_progress);
+
+    // Gather configuration properties for this run
+    SetupProperties( pImp );
+
+    // Construct a file system filter to improve our success ratio at reading external files
+    FileSystemFilter filter(pFile,pIOHandler);
+
+    // create a scene object to hold the data
+    std::unique_ptr<aiScene> sc(new aiScene());
+
+    // dispatch importing
+    try
+    {
+        InternReadFile( pFile, sc.get(), &filter);
+
+    } catch( const std::exception& err )    {
+        // extract error description
+        m_ErrorText = err.what();
+        ASSIMP_LOG_ERROR(m_ErrorText);
+        return nullptr;
+    }
+
+    // return what we gathered from the import.
+    return sc.release();
+}
+
+// ------------------------------------------------------------------------------------------------
+void BaseImporter::SetupProperties(const Importer* /*pImp*/)
+{
+    // the default implementation does nothing
+}
+
+// ------------------------------------------------------------------------------------------------
+void BaseImporter::GetExtensionList(std::set<std::string>& extensions) {
+    const aiImporterDesc* desc = GetInfo();
+    ai_assert(desc != nullptr);
+
+    const char* ext = desc->mFileExtensions;
+    ai_assert(ext != nullptr );
+
+    const char* last = ext;
+    do {
+        if (!*ext || *ext == ' ') {
+            extensions.insert(std::string(last,ext-last));
+            ai_assert(ext-last > 0);
+            last = ext;
+            while(*last == ' ') {
+                ++last;
+            }
+        }
+    }
+    while(*ext++);
+}
+
+// ------------------------------------------------------------------------------------------------
+/*static*/ bool BaseImporter::SearchFileHeaderForToken( IOSystem* pIOHandler,
+    const std::string&  pFile,
+    const char**        tokens,
+    unsigned int        numTokens,
+    unsigned int        searchBytes /* = 200 */,
+    bool                tokensSol /* false */,
+    bool                noAlphaBeforeTokens /* false */)
+{
+    ai_assert( nullptr != tokens );
+    ai_assert( 0 != numTokens );
+    ai_assert( 0 != searchBytes);
+
+    if ( nullptr == pIOHandler ) {
+        return false;
+    }
+
+    std::unique_ptr<IOStream> pStream (pIOHandler->Open(pFile));
+    if (pStream.get() ) {
+        // read 200 characters from the file
+        std::unique_ptr<char[]> _buffer (new char[searchBytes+1 /* for the '\0' */]);
+        char *buffer( _buffer.get() );
+        const size_t read( pStream->Read(buffer,1,searchBytes) );
+        if( 0 == read ) {
+            return false;
+        }
+
+        for( size_t i = 0; i < read; ++i ) {
+            buffer[ i ] = static_cast<char>( ::tolower( buffer[ i ] ) );
+        }
+
+        // It is not a proper handling of unicode files here ...
+        // ehm ... but it works in most cases.
+        char* cur = buffer,*cur2 = buffer,*end = &buffer[read];
+        while (cur != end)  {
+            if( *cur ) {
+                *cur2++ = *cur;
+            }
+            ++cur;
+        }
+        *cur2 = '\0';
+
+        std::string token;
+        for (unsigned int i = 0; i < numTokens; ++i ) {
+            ai_assert( nullptr != tokens[i] );
+            const size_t len( strlen( tokens[ i ] ) );
+            token.clear();
+            const char *ptr( tokens[ i ] );
+            for ( size_t tokIdx = 0; tokIdx < len; ++tokIdx ) {
+                token.push_back( static_cast<char>( tolower( *ptr ) ) );
+                ++ptr;
+            }
+            const char* r = strstr( buffer, token.c_str() );
+            if( !r ) {
+                continue;
+            }
+            // We need to make sure that we didn't accidentially identify the end of another token as our token,
+            // e.g. in a previous version the "gltf " present in some gltf files was detected as "f "
+            if (noAlphaBeforeTokens && (r != buffer && isalpha(r[-1]))) {
+                continue;
+            }
+            // We got a match, either we don't care where it is, or it happens to
+            // be in the beginning of the file / line
+            if (!tokensSol || r == buffer || r[-1] == '\r' || r[-1] == '\n') {
+                ASSIMP_LOG_DEBUG_F( "Found positive match for header keyword: ", tokens[i] );
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Simple check for file extension
+/*static*/ bool BaseImporter::SimpleExtensionCheck (const std::string& pFile,
+    const char* ext0,
+    const char* ext1,
+    const char* ext2)
+{
+    std::string::size_type pos = pFile.find_last_of('.');
+
+    // no file extension - can't read
+    if( pos == std::string::npos)
+        return false;
+
+    const char* ext_real = & pFile[ pos+1 ];
+    if( !ASSIMP_stricmp(ext_real,ext0) )
+        return true;
+
+    // check for other, optional, file extensions
+    if (ext1 && !ASSIMP_stricmp(ext_real,ext1))
+        return true;
+
+    if (ext2 && !ASSIMP_stricmp(ext_real,ext2))
+        return true;
+
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get file extension from path
+std::string BaseImporter::GetExtension( const std::string& file ) {
+    std::string::size_type pos = file.find_last_of('.');
+
+    // no file extension at all
+    if (pos == std::string::npos) {
+        return "";
+    }
+
+
+    // thanks to Andy Maloney for the hint
+    std::string ret = file.substr( pos + 1 );
+    std::transform( ret.begin(), ret.end(), ret.begin(), ToLower<char>);
+
+    return ret;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Check for magic bytes at the beginning of the file.
+/* static */ bool BaseImporter::CheckMagicToken(IOSystem* pIOHandler, const std::string& pFile,
+    const void* _magic, unsigned int num, unsigned int offset, unsigned int size)
+{
+    ai_assert( size <= 16 );
+    ai_assert( _magic );
+
+    if (!pIOHandler) {
+        return false;
+    }
+    union {
+        const char* magic;
+        const uint16_t* magic_u16;
+        const uint32_t* magic_u32;
+    };
+    magic = reinterpret_cast<const char*>(_magic);
+    std::unique_ptr<IOStream> pStream (pIOHandler->Open(pFile));
+    if (pStream.get() ) {
+
+        // skip to offset
+        pStream->Seek(offset,aiOrigin_SET);
+
+        // read 'size' characters from the file
+        union {
+            char data[16];
+            uint16_t data_u16[8];
+            uint32_t data_u32[4];
+        };
+        if(size != pStream->Read(data,1,size)) {
+            return false;
+        }
+
+        for (unsigned int i = 0; i < num; ++i) {
+            // also check against big endian versions of tokens with size 2,4
+            // that's just for convenience, the chance that we cause conflicts
+            // is quite low and it can save some lines and prevent nasty bugs
+            if (2 == size) {
+                uint16_t rev = *magic_u16;
+                ByteSwap::Swap(&rev);
+                if (data_u16[0] == *magic_u16 || data_u16[0] == rev) {
+                    return true;
+                }
+            }
+            else if (4 == size) {
+                uint32_t rev = *magic_u32;
+                ByteSwap::Swap(&rev);
+                if (data_u32[0] == *magic_u32 || data_u32[0] == rev) {
+                    return true;
+                }
+            }
+            else {
+                // any length ... just compare
+                if(!memcmp(magic,data,size)) {
+                    return true;
+                }
+            }
+            magic += size;
+        }
+    }
+    return false;
+}
+
+#include "../contrib/utf8cpp/source/utf8.h"
+
+// ------------------------------------------------------------------------------------------------
+// Convert to UTF8 data
+void BaseImporter::ConvertToUTF8(std::vector<char>& data)
+{
+    //ConversionResult result;
+    if(data.size() < 8) {
+        throw DeadlyImportError("File is too small");
+    }
+
+    // UTF 8 with BOM
+    if((uint8_t)data[0] == 0xEF && (uint8_t)data[1] == 0xBB && (uint8_t)data[2] == 0xBF) {
+        ASSIMP_LOG_DEBUG("Found UTF-8 BOM ...");
+
+        std::copy(data.begin()+3,data.end(),data.begin());
+        data.resize(data.size()-3);
+        return;
+    }
+    
+    
+    // UTF 32 BE with BOM
+    if(*((uint32_t*)&data.front()) == 0xFFFE0000) {
+
+        // swap the endianness ..
+        for(uint32_t* p = (uint32_t*)&data.front(), *end = (uint32_t*)&data.back(); p <= end; ++p) {
+            AI_SWAP4P(p);
+        }
+    }
+
+    // UTF 32 LE with BOM
+    if(*((uint32_t*)&data.front()) == 0x0000FFFE) {
+        ASSIMP_LOG_DEBUG("Found UTF-32 BOM ...");
+
+        std::vector<char> output;
+        int *ptr = (int*)&data[ 0 ];
+        int *end = ptr + ( data.size() / sizeof(int) ) +1;
+        utf8::utf32to8( ptr, end, back_inserter(output));
+        return;
+    }
+
+    // UTF 16 BE with BOM
+    if(*((uint16_t*)&data.front()) == 0xFFFE) {
+
+        // swap the endianness ..
+        for(uint16_t* p = (uint16_t*)&data.front(), *end = (uint16_t*)&data.back(); p <= end; ++p) {
+            ByteSwap::Swap2(p);
+        }
+    }
+
+    // UTF 16 LE with BOM
+    if(*((uint16_t*)&data.front()) == 0xFEFF) {
+        ASSIMP_LOG_DEBUG("Found UTF-16 BOM ...");
+
+        std::vector<unsigned char> output;
+        utf8::utf16to8(data.begin(), data.end(), back_inserter(output));
+        return;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Convert to UTF8 data to ISO-8859-1
+void BaseImporter::ConvertUTF8toISO8859_1(std::string& data)
+{
+    size_t size = data.size();
+    size_t i = 0, j = 0;
+
+    while(i < size) {
+        if ((unsigned char) data[i] < (size_t) 0x80) {
+            data[j] = data[i];
+        } else if(i < size - 1) {
+            if((unsigned char) data[i] == 0xC2) {
+                data[j] = data[++i];
+            } else if((unsigned char) data[i] == 0xC3) {
+                data[j] = ((unsigned char) data[++i] + 0x40);
+            } else {
+                std::stringstream stream;
+                stream << "UTF8 code " << std::hex << data[i] << data[i + 1] << " can not be converted into ISA-8859-1.";
+                ASSIMP_LOG_ERROR( stream.str() );
+
+                data[j++] = data[i++];
+                data[j] = data[i];
+            }
+        } else {
+            ASSIMP_LOG_ERROR("UTF8 code but only one character remaining");
+
+            data[j] = data[i];
+        }
+
+        i++; j++;
+    }
+
+    data.resize(j);
+}
+
+// ------------------------------------------------------------------------------------------------
+void BaseImporter::TextFileToBuffer(IOStream* stream,
+    std::vector<char>& data,
+    TextFileMode mode)
+{
+    ai_assert(nullptr != stream);
+
+    const size_t fileSize = stream->FileSize();
+    if (mode == FORBID_EMPTY) {
+        if(!fileSize) {
+            throw DeadlyImportError("File is empty");
+        }
+    }
+
+    data.reserve(fileSize+1);
+    data.resize(fileSize);
+    if(fileSize > 0) {
+        if(fileSize != stream->Read( &data[0], 1, fileSize)) {
+            throw DeadlyImportError("File read error");
+        }
+
+        ConvertToUTF8(data);
+    }
+
+    // append a binary zero to simplify string parsing
+    data.push_back(0);
+}
+
+// ------------------------------------------------------------------------------------------------
+namespace Assimp {
+    // Represents an import request
+    struct LoadRequest {
+        LoadRequest(const std::string& _file, unsigned int _flags,const BatchLoader::PropertyMap* _map, unsigned int _id)
+        : file(_file)
+        , flags(_flags)
+        , refCnt(1)
+        , scene(NULL)
+        , loaded(false)
+        , id(_id) {
+            if ( _map ) {
+                map = *_map;
+            }
+        }
+
+        bool operator== ( const std::string& f ) const {
+            return file == f;
+        }
+
+        const std::string        file;
+        unsigned int             flags;
+        unsigned int             refCnt;
+        aiScene                 *scene;
+        bool                     loaded;
+        BatchLoader::PropertyMap map;
+        unsigned int             id;
+    };
+}
+
+// ------------------------------------------------------------------------------------------------
+// BatchLoader::pimpl data structure
+struct Assimp::BatchData {
+    BatchData( IOSystem* pIO, bool validate )
+    : pIOSystem( pIO )
+    , pImporter( nullptr )
+    , next_id(0xffff)
+    , validate( validate ) {
+        ai_assert( nullptr != pIO );
+        
+        pImporter = new Importer();
+        pImporter->SetIOHandler( pIO );
+    }
+
+    ~BatchData() {
+        pImporter->SetIOHandler( nullptr ); /* get pointer back into our possession */
+        delete pImporter;
+    }
+
+    // IO system to be used for all imports
+    IOSystem* pIOSystem;
+
+    // Importer used to load all meshes
+    Importer* pImporter;
+
+    // List of all imports
+    std::list<LoadRequest> requests;
+
+    // Base path
+    std::string pathBase;
+
+    // Id for next item
+    unsigned int next_id;
+
+    // Validation enabled state
+    bool validate;
+};
+
+typedef std::list<LoadRequest>::iterator LoadReqIt;
+
+// ------------------------------------------------------------------------------------------------
+BatchLoader::BatchLoader(IOSystem* pIO, bool validate ) {
+    ai_assert(nullptr != pIO);
+
+    m_data = new BatchData( pIO, validate );
+}
+
+// ------------------------------------------------------------------------------------------------
+BatchLoader::~BatchLoader()
+{
+    // delete all scenes what have not been polled by the user
+    for ( LoadReqIt it = m_data->requests.begin();it != m_data->requests.end(); ++it) {
+        delete (*it).scene;
+    }
+    delete m_data;
+}
+
+// ------------------------------------------------------------------------------------------------
+void BatchLoader::setValidation( bool enabled ) {
+    m_data->validate = enabled;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool BatchLoader::getValidation() const {
+    return m_data->validate;
+}
+
+// ------------------------------------------------------------------------------------------------
+unsigned int BatchLoader::AddLoadRequest(const std::string& file,
+    unsigned int steps /*= 0*/, const PropertyMap* map /*= NULL*/)
+{
+    ai_assert(!file.empty());
+
+    // check whether we have this loading request already
+    for ( LoadReqIt it = m_data->requests.begin();it != m_data->requests.end(); ++it)  {
+        // Call IOSystem's path comparison function here
+        if ( m_data->pIOSystem->ComparePaths((*it).file,file)) {
+            if (map) {
+                if ( !( ( *it ).map == *map ) ) {
+                    continue;
+                }
+            }
+            else if ( !( *it ).map.empty() ) {
+                continue;
+            }
+
+            (*it).refCnt++;
+            return (*it).id;
+        }
+    }
+
+    // no, we don't have it. So add it to the queue ...
+    m_data->requests.push_back(LoadRequest(file,steps,map, m_data->next_id));
+    return m_data->next_id++;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiScene* BatchLoader::GetImport( unsigned int which )
+{
+    for ( LoadReqIt it = m_data->requests.begin();it != m_data->requests.end(); ++it) {
+        if ((*it).id == which && (*it).loaded)  {
+            aiScene* sc = (*it).scene;
+            if (!(--(*it).refCnt))  {
+                m_data->requests.erase(it);
+            }
+            return sc;
+        }
+    }
+    return nullptr;
+}
+
+// ------------------------------------------------------------------------------------------------
+void BatchLoader::LoadAll()
+{
+    // no threaded implementation for the moment
+    for ( LoadReqIt it = m_data->requests.begin();it != m_data->requests.end(); ++it) {
+        // force validation in debug builds
+        unsigned int pp = (*it).flags;
+        if ( m_data->validate ) {
+            pp |= aiProcess_ValidateDataStructure;
+        }
+
+        // setup config properties if necessary
+        ImporterPimpl* pimpl = m_data->pImporter->Pimpl();
+        pimpl->mFloatProperties  = (*it).map.floats;
+        pimpl->mIntProperties    = (*it).map.ints;
+        pimpl->mStringProperties = (*it).map.strings;
+        pimpl->mMatrixProperties = (*it).map.matrices;
+
+        if (!DefaultLogger::isNullLogger())
+        {
+            ASSIMP_LOG_INFO("%%% BEGIN EXTERNAL FILE %%%");
+            ASSIMP_LOG_INFO_F("File: ", (*it).file);
+        }
+        m_data->pImporter->ReadFile((*it).file,pp);
+        (*it).scene = m_data->pImporter->GetOrphanedScene();
+        (*it).loaded = true;
+
+        ASSIMP_LOG_INFO("%%% END EXTERNAL FILE %%%");
+    }
+}
diff --git a/thirdparty/assimp/code/BaseProcess.cpp b/thirdparty/assimp/code/BaseProcess.cpp
new file mode 100644
index 0000000000..18872c3693
--- /dev/null
+++ b/thirdparty/assimp/code/BaseProcess.cpp
@@ -0,0 +1,107 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of BaseProcess */
+
+#include <assimp/BaseImporter.h>
+#include "BaseProcess.h"
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+#include "Importer.h"
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+BaseProcess::BaseProcess() AI_NO_EXCEPT
+: shared()
+, progress()
+{
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+BaseProcess::~BaseProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+void BaseProcess::ExecuteOnScene( Importer* pImp)
+{
+    ai_assert(NULL != pImp && NULL != pImp->Pimpl()->mScene);
+
+    progress = pImp->GetProgressHandler();
+    ai_assert(progress);
+
+    SetupProperties( pImp );
+
+    // catch exceptions thrown inside the PostProcess-Step
+    try
+    {
+        Execute(pImp->Pimpl()->mScene);
+
+    } catch( const std::exception& err )    {
+
+        // extract error description
+        pImp->Pimpl()->mErrorString = err.what();
+        ASSIMP_LOG_ERROR(pImp->Pimpl()->mErrorString);
+
+        // and kill the partially imported data
+        delete pImp->Pimpl()->mScene;
+        pImp->Pimpl()->mScene = NULL;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void BaseProcess::SetupProperties(const Importer* /*pImp*/)
+{
+    // the default implementation does nothing
+}
+
+// ------------------------------------------------------------------------------------------------
+bool BaseProcess::RequireVerboseFormat() const
+{
+    return true;
+}
+
diff --git a/thirdparty/assimp/code/BaseProcess.h b/thirdparty/assimp/code/BaseProcess.h
new file mode 100644
index 0000000000..4d5c7a76be
--- /dev/null
+++ b/thirdparty/assimp/code/BaseProcess.h
@@ -0,0 +1,290 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Base class of all import post processing steps */
+#ifndef INCLUDED_AI_BASEPROCESS_H
+#define INCLUDED_AI_BASEPROCESS_H
+
+#include <map>
+#include <assimp/GenericProperty.h>
+
+struct aiScene;
+
+namespace Assimp    {
+
+class Importer;
+
+// ---------------------------------------------------------------------------
+/** Helper class to allow post-processing steps to interact with each other.
+ *
+ *  The class maintains a simple property list that can be used by pp-steps
+ *  to provide additional information to other steps. This is primarily
+ *  intended for cross-step optimizations.
+ */
+class SharedPostProcessInfo
+{
+public:
+
+    struct Base
+    {
+        virtual ~Base()
+        {}
+    };
+
+    //! Represents data that is allocated on the heap, thus needs to be deleted
+    template <typename T>
+    struct THeapData : public Base
+    {
+        explicit THeapData(T* in)
+            : data (in)
+        {}
+
+        ~THeapData()
+        {
+            delete data;
+        }
+        T* data;
+    };
+
+    //! Represents static, by-value data not allocated on the heap
+    template <typename T>
+    struct TStaticData : public Base
+    {
+        explicit TStaticData(T in)
+            : data (in)
+        {}
+
+        ~TStaticData()
+        {}
+
+        T data;
+    };
+
+    // some typedefs for cleaner code
+    typedef unsigned int KeyType;
+    typedef std::map<KeyType, Base*>  PropertyMap;
+
+public:
+
+    //! Destructor
+    ~SharedPostProcessInfo()
+    {
+        Clean();
+    }
+
+    //! Remove all stored properties from the table
+    void Clean()
+    {
+        // invoke the virtual destructor for all stored properties
+        for (PropertyMap::iterator it = pmap.begin(), end = pmap.end();
+             it != end; ++it)
+        {
+            delete (*it).second;
+        }
+        pmap.clear();
+    }
+
+    //! Add a heap property to the list
+    template <typename T>
+    void AddProperty( const char* name, T* in ){
+        AddProperty(name,(Base*)new THeapData<T>(in));
+    }
+
+    //! Add a static by-value property to the list
+    template <typename T>
+    void AddProperty( const char* name, T in ){
+        AddProperty(name,(Base*)new TStaticData<T>(in));
+    }
+
+
+    //! Get a heap property
+    template <typename T>
+    bool GetProperty( const char* name, T*& out ) const
+    {
+        THeapData<T>* t = (THeapData<T>*)GetPropertyInternal(name);
+        if(!t)
+        {
+            out = NULL;
+            return false;
+        }
+        out = t->data;
+        return true;
+    }
+
+    //! Get a static, by-value property
+    template <typename T>
+    bool GetProperty( const char* name, T& out ) const
+    {
+        TStaticData<T>* t = (TStaticData<T>*)GetPropertyInternal(name);
+        if(!t)return false;
+        out = t->data;
+        return true;
+    }
+
+    //! Remove a property of a specific type
+    void RemoveProperty( const char* name)  {
+        SetGenericPropertyPtr<Base>(pmap,name,NULL);
+    }
+
+private:
+
+    void AddProperty( const char* name, Base* data) {
+        SetGenericPropertyPtr<Base>(pmap,name,data);
+    }
+
+    Base* GetPropertyInternal( const char* name) const  {
+        return GetGenericProperty<Base*>(pmap,name,NULL);
+    }
+
+private:
+
+    //! Map of all stored properties
+    PropertyMap pmap;
+};
+
+#if 0
+
+// ---------------------------------------------------------------------------
+/** @brief Represents a dependency table for a postprocessing steps.
+ *
+ *  For future use.
+ */
+ struct PPDependencyTable
+ {
+     unsigned int execute_me_before_these;
+     unsigned int execute_me_after_these;
+     unsigned int only_if_these_are_not_specified;
+     unsigned int mutually_exclusive_with;
+ };
+
+#endif
+
+
+#define AI_SPP_SPATIAL_SORT "$Spat"
+
+// ---------------------------------------------------------------------------
+/** The BaseProcess defines a common interface for all post processing steps.
+ * A post processing step is run after a successful import if the caller
+ * specified the corresponding flag when calling ReadFile().
+ * Enum #aiPostProcessSteps defines which flags are available.
+ * After a successful import the Importer iterates over its internal array
+ * of processes and calls IsActive() on each process to evaluate if the step
+ * should be executed. If the function returns true, the class' Execute()
+ * function is called subsequently.
+ */
+class ASSIMP_API_WINONLY BaseProcess {
+    friend class Importer;
+
+public:
+    /** Constructor to be privately used by Importer */
+    BaseProcess() AI_NO_EXCEPT;
+
+    /** Destructor, private as well */
+    virtual ~BaseProcess();
+
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag.
+     * @param pFlags The processing flags the importer was called with. A
+     *   bitwise combination of #aiPostProcessSteps.
+     * @return true if the process is present in this flag fields,
+     *   false if not.
+    */
+    virtual bool IsActive( unsigned int pFlags) const = 0;
+
+    // -------------------------------------------------------------------
+    /** Check whether this step expects its input vertex data to be
+     *  in verbose format. */
+    virtual bool RequireVerboseFormat() const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * The function deletes the scene if the postprocess step fails (
+    * the object pointer will be set to NULL).
+    * @param pImp Importer instance (pImp->mScene must be valid)
+    */
+    void ExecuteOnScene( Importer* pImp);
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    virtual void SetupProperties(const Importer* pImp);
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * A process should throw an ImportErrorException* if it fails.
+    * This method must be implemented by deriving classes.
+    * @param pScene The imported data to work at.
+    */
+    virtual void Execute( aiScene* pScene) = 0;
+
+
+    // -------------------------------------------------------------------
+    /** Assign a new SharedPostProcessInfo to the step. This object
+     *  allows multiple postprocess steps to share data.
+     * @param sh May be NULL
+    */
+    inline void SetSharedData(SharedPostProcessInfo* sh)    {
+        shared = sh;
+    }
+
+    // -------------------------------------------------------------------
+    /** Get the shared data that is assigned to the step.
+    */
+    inline SharedPostProcessInfo* GetSharedData()   {
+        return shared;
+    }
+
+protected:
+
+    /** See the doc of #SharedPostProcessInfo for more details */
+    SharedPostProcessInfo* shared;
+
+    /** Currently active progress handler */
+    ProgressHandler* progress;
+};
+
+
+} // end of namespace Assimp
+
+#endif // AI_BASEPROCESS_H_INC
diff --git a/thirdparty/assimp/code/Bitmap.cpp b/thirdparty/assimp/code/Bitmap.cpp
new file mode 100644
index 0000000000..b22b71ea9e
--- /dev/null
+++ b/thirdparty/assimp/code/Bitmap.cpp
@@ -0,0 +1,155 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Bitmap.cpp
+ *  @brief Defines bitmap format helper for textures
+ *
+ * Used for file formats which embed their textures into the model file.
+ */
+
+
+#include <assimp/Bitmap.h>
+#include <assimp/texture.h>
+#include <assimp/IOStream.hpp>
+#include <assimp/ByteSwapper.h>
+
+namespace Assimp {
+
+    void Bitmap::Save(aiTexture* texture, IOStream* file) {
+        if(file != NULL) {
+            Header header;
+            DIB dib;
+
+            dib.size = DIB::dib_size;
+            dib.width = texture->mWidth;
+            dib.height = texture->mHeight;
+            dib.planes = 1;
+            dib.bits_per_pixel = 8 * mBytesPerPixel;
+            dib.compression = 0;
+            dib.image_size = (((dib.width * mBytesPerPixel) + 3) & 0x0000FFFC) * dib.height;
+            dib.x_resolution = 0;
+            dib.y_resolution = 0;
+            dib.nb_colors = 0;
+            dib.nb_important_colors = 0;
+
+            header.type = 0x4D42; // 'BM'
+            header.offset = Header::header_size + DIB::dib_size;
+            header.size = header.offset + dib.image_size;
+            header.reserved1 = 0;
+            header.reserved2 = 0;
+
+            WriteHeader(header, file);
+            WriteDIB(dib, file);
+            WriteData(texture, file);
+        }
+    }
+
+    template<typename T>
+    inline 
+    std::size_t Copy(uint8_t* data, const T &field) {
+#ifdef AI_BUILD_BIG_ENDIAN
+        T field_swapped=AI_BE(field);
+        std::memcpy(data, &field_swapped, sizeof(field)); return sizeof(field);
+#else
+        std::memcpy(data, &AI_BE(field), sizeof(field)); return sizeof(field);
+#endif
+    }
+
+    void Bitmap::WriteHeader(Header& header, IOStream* file) {
+        uint8_t data[Header::header_size];
+
+        std::size_t offset = 0;
+
+        offset += Copy(&data[offset], header.type);
+        offset += Copy(&data[offset], header.size);
+        offset += Copy(&data[offset], header.reserved1);
+        offset += Copy(&data[offset], header.reserved2);
+                  Copy(&data[offset], header.offset);
+
+        file->Write(data, Header::header_size, 1);
+    }
+
+    void Bitmap::WriteDIB(DIB& dib, IOStream* file) {
+        uint8_t data[DIB::dib_size];
+
+        std::size_t offset = 0;
+
+        offset += Copy(&data[offset], dib.size);
+        offset += Copy(&data[offset], dib.width);
+        offset += Copy(&data[offset], dib.height);
+        offset += Copy(&data[offset], dib.planes);
+        offset += Copy(&data[offset], dib.bits_per_pixel);
+        offset += Copy(&data[offset], dib.compression);
+        offset += Copy(&data[offset], dib.image_size);
+        offset += Copy(&data[offset], dib.x_resolution);
+        offset += Copy(&data[offset], dib.y_resolution);
+        offset += Copy(&data[offset], dib.nb_colors);
+                  Copy(&data[offset], dib.nb_important_colors);
+
+        file->Write(data, DIB::dib_size, 1);
+    }
+
+    void Bitmap::WriteData(aiTexture* texture, IOStream* file) {
+        static const std::size_t padding_offset = 4;
+        static const uint8_t padding_data[padding_offset] = {0x0, 0x0, 0x0, 0x0};
+
+        unsigned int padding = (padding_offset - ((mBytesPerPixel * texture->mWidth) % padding_offset)) % padding_offset;
+        uint8_t pixel[mBytesPerPixel];
+
+        for(std::size_t i = 0; i < texture->mHeight; ++i) {
+            for(std::size_t j = 0; j < texture->mWidth; ++j) {
+                const aiTexel& texel = texture->pcData[(texture->mHeight - i - 1) * texture->mWidth + j]; // Bitmap files are stored in bottom-up format
+
+                pixel[0] = texel.r;
+                pixel[1] = texel.g;
+                pixel[2] = texel.b;
+                pixel[3] = texel.a;
+
+                file->Write(pixel, mBytesPerPixel, 1);
+            }
+
+            file->Write(padding_data, padding, 1);
+        }
+    }
+
+}
diff --git a/thirdparty/assimp/code/CInterfaceIOWrapper.cpp b/thirdparty/assimp/code/CInterfaceIOWrapper.cpp
new file mode 100644
index 0000000000..5a3a49565a
--- /dev/null
+++ b/thirdparty/assimp/code/CInterfaceIOWrapper.cpp
@@ -0,0 +1,136 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file aiFileIO -> IOSystem wrapper*/
+
+#include "CInterfaceIOWrapper.h"
+
+namespace Assimp    {
+
+CIOStreamWrapper::~CIOStreamWrapper(void)
+{
+    /* Various places depend on this destructor to close the file */
+    if (mFile) {
+        mIO->mFileSystem->CloseProc(mIO->mFileSystem, mFile);
+        mFile = nullptr;
+    }
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::Read(void* pvBuffer,
+    size_t pSize,
+    size_t pCount
+){
+    // need to typecast here as C has no void*
+    return mFile->ReadProc(mFile,(char*)pvBuffer,pSize,pCount);
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::Write(const void* pvBuffer,
+    size_t pSize,
+    size_t pCount
+){
+    // need to typecast here as C has no void*
+    return mFile->WriteProc(mFile,(const char*)pvBuffer,pSize,pCount);
+}
+
+// ...................................................................
+aiReturn CIOStreamWrapper::Seek(size_t pOffset,
+    aiOrigin pOrigin
+){
+    return mFile->SeekProc(mFile,pOffset,pOrigin);
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::Tell(void) const {
+    return mFile->TellProc(mFile);
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::FileSize() const {
+    return mFile->FileSizeProc(mFile);
+}
+
+// ...................................................................
+void CIOStreamWrapper::Flush () {
+    return mFile->FlushProc(mFile);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Custom IOStream implementation for the C-API
+bool CIOSystemWrapper::Exists( const char* pFile) const {
+    aiFile* p = mFileSystem->OpenProc(mFileSystem,pFile,"rb");
+    if (p){
+        mFileSystem->CloseProc(mFileSystem,p);
+        return true;
+    }
+    return false;
+}
+
+// ...................................................................
+char CIOSystemWrapper::getOsSeparator() const {
+#ifndef _WIN32
+    return '/';
+#else
+    return '\\';
+#endif
+}
+
+// ...................................................................
+IOStream* CIOSystemWrapper::Open(const char* pFile,const char* pMode) {
+    aiFile* p = mFileSystem->OpenProc(mFileSystem,pFile,pMode);
+    if (!p) {
+        return NULL;
+    }
+    return new CIOStreamWrapper(p, this);
+}
+
+// ...................................................................
+void CIOSystemWrapper::Close( IOStream* pFile) {
+    if (!pFile) {
+        return;
+    }
+    delete pFile;
+}
+
+}
diff --git a/thirdparty/assimp/code/CInterfaceIOWrapper.h b/thirdparty/assimp/code/CInterfaceIOWrapper.h
new file mode 100644
index 0000000000..2162320302
--- /dev/null
+++ b/thirdparty/assimp/code/CInterfaceIOWrapper.h
@@ -0,0 +1,99 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file aiFileIO -> IOSystem wrapper*/
+
+#ifndef AI_CIOSYSTEM_H_INCLUDED
+#define AI_CIOSYSTEM_H_INCLUDED
+
+#include <assimp/cfileio.h>
+#include <assimp/IOStream.hpp>
+#include <assimp/IOSystem.hpp>
+
+namespace Assimp    {
+
+class CIOSystemWrapper;
+
+// ------------------------------------------------------------------------------------------------
+// Custom IOStream implementation for the C-API
+class CIOStreamWrapper : public IOStream
+{
+public:
+    explicit CIOStreamWrapper(aiFile* pFile, CIOSystemWrapper* io)
+        : mFile(pFile),
+        mIO(io)
+    {}
+    ~CIOStreamWrapper(void);
+
+    size_t Read(void* pvBuffer, size_t pSize, size_t pCount);
+    size_t Write(const void* pvBuffer, size_t pSize, size_t pCount);
+    aiReturn Seek(size_t pOffset, aiOrigin pOrigin);
+    size_t Tell(void) const;
+    size_t FileSize() const;
+    void Flush();
+
+private:
+    aiFile* mFile;
+    CIOSystemWrapper* mIO;
+};
+
+class CIOSystemWrapper : public IOSystem
+{
+    friend class CIOStreamWrapper;
+public:
+    explicit CIOSystemWrapper(aiFileIO* pFile)
+        : mFileSystem(pFile)
+    {}
+
+    bool Exists( const char* pFile) const;
+    char getOsSeparator() const;
+    IOStream* Open(const char* pFile,const char* pMode = "rb");
+    void Close( IOStream* pFile);
+private:
+    aiFileIO* mFileSystem;
+};
+
+}
+
+#endif
+
diff --git a/thirdparty/assimp/code/CalcTangentsProcess.cpp b/thirdparty/assimp/code/CalcTangentsProcess.cpp
new file mode 100644
index 0000000000..b30f39c274
--- /dev/null
+++ b/thirdparty/assimp/code/CalcTangentsProcess.cpp
@@ -0,0 +1,319 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to calculate
+ *  tangents and bitangents for all imported meshes
+ */
+
+// internal headers
+#include "CalcTangentsProcess.h"
+#include "ProcessHelper.h"
+#include <assimp/TinyFormatter.h>
+#include <assimp/qnan.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+CalcTangentsProcess::CalcTangentsProcess()
+: configMaxAngle( AI_DEG_TO_RAD(45.f) )
+, configSourceUV( 0 ) {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+CalcTangentsProcess::~CalcTangentsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool CalcTangentsProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_CalcTangentSpace) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void CalcTangentsProcess::SetupProperties(const Importer* pImp)
+{
+    ai_assert( NULL != pImp );
+
+    // get the current value of the property
+    configMaxAngle = pImp->GetPropertyFloat(AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE,45.f);
+    configMaxAngle = std::max(std::min(configMaxAngle,45.0f),0.0f);
+    configMaxAngle = AI_DEG_TO_RAD(configMaxAngle);
+
+    configSourceUV = pImp->GetPropertyInteger(AI_CONFIG_PP_CT_TEXTURE_CHANNEL_INDEX,0);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void CalcTangentsProcess::Execute( aiScene* pScene)
+{
+    ai_assert( NULL != pScene );
+
+    ASSIMP_LOG_DEBUG("CalcTangentsProcess begin");
+
+    bool bHas = false;
+    for ( unsigned int a = 0; a < pScene->mNumMeshes; a++ ) {
+        if(ProcessMesh( pScene->mMeshes[a],a))bHas = true;
+    }
+
+    if ( bHas ) {
+        ASSIMP_LOG_INFO("CalcTangentsProcess finished. Tangents have been calculated");
+    } else {
+        ASSIMP_LOG_DEBUG("CalcTangentsProcess finished");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Calculates tangents and bi-tangents for the given mesh
+bool CalcTangentsProcess::ProcessMesh( aiMesh* pMesh, unsigned int meshIndex)
+{
+    // we assume that the mesh is still in the verbose vertex format where each face has its own set
+    // of vertices and no vertices are shared between faces. Sadly I don't know any quick test to
+    // assert() it here.
+    // assert( must be verbose, dammit);
+
+    if (pMesh->mTangents) // this implies that mBitangents is also there
+        return false;
+
+    // If the mesh consists of lines and/or points but not of
+    // triangles or higher-order polygons the normal vectors
+    // are undefined.
+    if (!(pMesh->mPrimitiveTypes & (aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON)))
+    {
+        ASSIMP_LOG_INFO("Tangents are undefined for line and point meshes");
+        return false;
+    }
+
+    // what we can check, though, is if the mesh has normals and texture coordinates. That's a requirement
+    if( pMesh->mNormals == NULL)
+    {
+        ASSIMP_LOG_ERROR("Failed to compute tangents; need normals");
+        return false;
+    }
+    if( configSourceUV >= AI_MAX_NUMBER_OF_TEXTURECOORDS || !pMesh->mTextureCoords[configSourceUV] )
+    {
+        ASSIMP_LOG_ERROR((Formatter::format("Failed to compute tangents; need UV data in channel"),configSourceUV));
+        return false;
+    }
+
+    const float angleEpsilon = 0.9999f;
+
+    std::vector<bool> vertexDone( pMesh->mNumVertices, false);
+    const float qnan = get_qnan();
+
+    // create space for the tangents and bitangents
+    pMesh->mTangents = new aiVector3D[pMesh->mNumVertices];
+    pMesh->mBitangents = new aiVector3D[pMesh->mNumVertices];
+
+    const aiVector3D* meshPos = pMesh->mVertices;
+    const aiVector3D* meshNorm = pMesh->mNormals;
+    const aiVector3D* meshTex = pMesh->mTextureCoords[configSourceUV];
+    aiVector3D* meshTang = pMesh->mTangents;
+    aiVector3D* meshBitang = pMesh->mBitangents;
+
+    // calculate the tangent and bitangent for every face
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++)
+    {
+        const aiFace& face = pMesh->mFaces[a];
+        if (face.mNumIndices < 3)
+        {
+            // There are less than three indices, thus the tangent vector
+            // is not defined. We are finished with these vertices now,
+            // their tangent vectors are set to qnan.
+            for (unsigned int i = 0; i < face.mNumIndices;++i)
+            {
+                unsigned int idx = face.mIndices[i];
+                vertexDone  [idx] = true;
+                meshTang    [idx] = aiVector3D(qnan);
+                meshBitang  [idx] = aiVector3D(qnan);
+            }
+
+            continue;
+        }
+
+        // triangle or polygon... we always use only the first three indices. A polygon
+        // is supposed to be planar anyways....
+        // FIXME: (thom) create correct calculation for multi-vertex polygons maybe?
+        const unsigned int p0 = face.mIndices[0], p1 = face.mIndices[1], p2 = face.mIndices[2];
+
+        // position differences p1->p2 and p1->p3
+        aiVector3D v = meshPos[p1] - meshPos[p0], w = meshPos[p2] - meshPos[p0];
+
+        // texture offset p1->p2 and p1->p3
+        float sx = meshTex[p1].x - meshTex[p0].x, sy = meshTex[p1].y - meshTex[p0].y;
+        float tx = meshTex[p2].x - meshTex[p0].x, ty = meshTex[p2].y - meshTex[p0].y;
+        float dirCorrection = (tx * sy - ty * sx) < 0.0f ? -1.0f : 1.0f;
+        // when t1, t2, t3 in same position in UV space, just use default UV direction.
+        if (  sx * ty == sy * tx ) {
+            sx = 0.0; sy = 1.0;
+            tx = 1.0; ty = 0.0;
+        }
+
+        // tangent points in the direction where to positive X axis of the texture coord's would point in model space
+        // bitangent's points along the positive Y axis of the texture coord's, respectively
+        aiVector3D tangent, bitangent;
+        tangent.x = (w.x * sy - v.x * ty) * dirCorrection;
+        tangent.y = (w.y * sy - v.y * ty) * dirCorrection;
+        tangent.z = (w.z * sy - v.z * ty) * dirCorrection;
+        bitangent.x = (w.x * sx - v.x * tx) * dirCorrection;
+        bitangent.y = (w.y * sx - v.y * tx) * dirCorrection;
+        bitangent.z = (w.z * sx - v.z * tx) * dirCorrection;
+
+        // store for every vertex of that face
+        for( unsigned int b = 0; b < face.mNumIndices; ++b ) {
+            unsigned int p = face.mIndices[b];
+
+            // project tangent and bitangent into the plane formed by the vertex' normal
+            aiVector3D localTangent = tangent - meshNorm[p] * (tangent * meshNorm[p]);
+            aiVector3D localBitangent = bitangent - meshNorm[p] * (bitangent * meshNorm[p]);
+            localTangent.Normalize(); localBitangent.Normalize();
+
+            // reconstruct tangent/bitangent according to normal and bitangent/tangent when it's infinite or NaN.
+            bool invalid_tangent = is_special_float(localTangent.x) || is_special_float(localTangent.y) || is_special_float(localTangent.z);
+            bool invalid_bitangent = is_special_float(localBitangent.x) || is_special_float(localBitangent.y) || is_special_float(localBitangent.z);
+            if (invalid_tangent != invalid_bitangent) {
+                if (invalid_tangent) {
+                    localTangent = meshNorm[p] ^ localBitangent;
+                    localTangent.Normalize();
+                } else {
+                    localBitangent = localTangent ^ meshNorm[p];
+                    localBitangent.Normalize();
+                }
+            }
+
+            // and write it into the mesh.
+            meshTang[ p ]   = localTangent;
+            meshBitang[ p ] = localBitangent;
+        }
+    }
+
+
+    // create a helper to quickly find locally close vertices among the vertex array
+    // FIX: check whether we can reuse the SpatialSort of a previous step
+    SpatialSort* vertexFinder = NULL;
+    SpatialSort  _vertexFinder;
+    float posEpsilon;
+    if (shared)
+    {
+        std::vector<std::pair<SpatialSort,float> >* avf;
+        shared->GetProperty(AI_SPP_SPATIAL_SORT,avf);
+        if (avf)
+        {
+            std::pair<SpatialSort,float>& blubb = avf->operator [] (meshIndex);
+            vertexFinder = &blubb.first;
+            posEpsilon = blubb.second;;
+        }
+    }
+    if (!vertexFinder)
+    {
+        _vertexFinder.Fill(pMesh->mVertices, pMesh->mNumVertices, sizeof( aiVector3D));
+        vertexFinder = &_vertexFinder;
+        posEpsilon = ComputePositionEpsilon(pMesh);
+    }
+    std::vector<unsigned int> verticesFound;
+
+    const float fLimit = std::cos(configMaxAngle);
+    std::vector<unsigned int> closeVertices;
+
+    // in the second pass we now smooth out all tangents and bitangents at the same local position
+    // if they are not too far off.
+    for( unsigned int a = 0; a < pMesh->mNumVertices; a++)
+    {
+        if( vertexDone[a])
+            continue;
+
+        const aiVector3D& origPos = pMesh->mVertices[a];
+        const aiVector3D& origNorm = pMesh->mNormals[a];
+        const aiVector3D& origTang = pMesh->mTangents[a];
+        const aiVector3D& origBitang = pMesh->mBitangents[a];
+        closeVertices.resize( 0 );
+
+        // find all vertices close to that position
+        vertexFinder->FindPositions( origPos, posEpsilon, verticesFound);
+
+        closeVertices.reserve (verticesFound.size()+5);
+        closeVertices.push_back( a);
+
+        // look among them for other vertices sharing the same normal and a close-enough tangent/bitangent
+        for( unsigned int b = 0; b < verticesFound.size(); b++)
+        {
+            unsigned int idx = verticesFound[b];
+            if( vertexDone[idx])
+                continue;
+            if( meshNorm[idx] * origNorm < angleEpsilon)
+                continue;
+            if(  meshTang[idx] * origTang < fLimit)
+                continue;
+            if( meshBitang[idx] * origBitang < fLimit)
+                continue;
+
+            // it's similar enough -> add it to the smoothing group
+            closeVertices.push_back( idx);
+            vertexDone[idx] = true;
+        }
+
+        // smooth the tangents and bitangents of all vertices that were found to be close enough
+        aiVector3D smoothTangent( 0, 0, 0), smoothBitangent( 0, 0, 0);
+        for( unsigned int b = 0; b < closeVertices.size(); ++b)
+        {
+            smoothTangent += meshTang[ closeVertices[b] ];
+            smoothBitangent += meshBitang[ closeVertices[b] ];
+        }
+        smoothTangent.Normalize();
+        smoothBitangent.Normalize();
+
+        // and write it back into all affected tangents
+        for( unsigned int b = 0; b < closeVertices.size(); ++b)
+        {
+            meshTang[ closeVertices[b] ] = smoothTangent;
+            meshBitang[ closeVertices[b] ] = smoothBitangent;
+        }
+    }
+    return true;
+}
diff --git a/thirdparty/assimp/code/CalcTangentsProcess.h b/thirdparty/assimp/code/CalcTangentsProcess.h
new file mode 100644
index 0000000000..18775abcc7
--- /dev/null
+++ b/thirdparty/assimp/code/CalcTangentsProcess.h
@@ -0,0 +1,117 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+
+/** @file Defines a post processing step to calculate tangents and
+    bitangents on all imported meshes.*/
+#ifndef AI_CALCTANGENTSPROCESS_H_INC
+#define AI_CALCTANGENTSPROCESS_H_INC
+
+#include "BaseProcess.h"
+
+struct aiMesh;
+
+namespace Assimp
+{
+
+// ---------------------------------------------------------------------------
+/** The CalcTangentsProcess calculates the tangent and bitangent for any vertex
+ * of all meshes. It is expected to be run before the JoinVerticesProcess runs
+ * because the joining of vertices also considers tangents and bitangents for
+ * uniqueness.
+ */
+class ASSIMP_API_WINONLY CalcTangentsProcess : public BaseProcess
+{
+public:
+
+    CalcTangentsProcess();
+    ~CalcTangentsProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag.
+    * @param pFlags The processing flags the importer was called with.
+    *   A bitwise combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields,
+    *   false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    void SetupProperties(const Importer* pImp);
+
+
+    // setter for configMaxAngle
+    inline void SetMaxSmoothAngle(float f)
+    {
+        configMaxAngle =f;
+    }
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Calculates tangents and bitangents for a specific mesh.
+    * @param pMesh The mesh to process.
+    * @param meshIndex Index of the mesh
+    */
+    bool ProcessMesh( aiMesh* pMesh, unsigned int meshIndex);
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+private:
+
+    /** Configuration option: maximum smoothing angle, in radians*/
+    float configMaxAngle;
+    unsigned int configSourceUV;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_CALCTANGENTSPROCESS_H_INC
diff --git a/thirdparty/assimp/code/ComputeUVMappingProcess.cpp b/thirdparty/assimp/code/ComputeUVMappingProcess.cpp
new file mode 100644
index 0000000000..bb571a551b
--- /dev/null
+++ b/thirdparty/assimp/code/ComputeUVMappingProcess.cpp
@@ -0,0 +1,506 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file GenUVCoords step */
+
+
+#include "ComputeUVMappingProcess.h"
+#include "ProcessHelper.h"
+#include <assimp/Exceptional.h>
+
+using namespace Assimp;
+
+namespace {
+
+    const static aiVector3D base_axis_y(0.0,1.0,0.0);
+    const static aiVector3D base_axis_x(1.0,0.0,0.0);
+    const static aiVector3D base_axis_z(0.0,0.0,1.0);
+    const static ai_real angle_epsilon = ai_real( 0.95 );
+}
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+ComputeUVMappingProcess::ComputeUVMappingProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+ComputeUVMappingProcess::~ComputeUVMappingProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool ComputeUVMappingProcess::IsActive( unsigned int pFlags) const
+{
+    return  (pFlags & aiProcess_GenUVCoords) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Check whether a ray intersects a plane and find the intersection point
+inline bool PlaneIntersect(const aiRay& ray, const aiVector3D& planePos,
+    const aiVector3D& planeNormal, aiVector3D& pos)
+{
+    const ai_real b = planeNormal * (planePos - ray.pos);
+    ai_real h = ray.dir * planeNormal;
+    if ((h < 10e-5 && h > -10e-5) || (h = b/h) < 0)
+        return false;
+
+    pos = ray.pos + (ray.dir * h);
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Find the first empty UV channel in a mesh
+inline unsigned int FindEmptyUVChannel (aiMesh* mesh)
+{
+    for (unsigned int m = 0; m < AI_MAX_NUMBER_OF_TEXTURECOORDS;++m)
+        if (!mesh->mTextureCoords[m])return m;
+
+    ASSIMP_LOG_ERROR("Unable to compute UV coordinates, no free UV slot found");
+    return UINT_MAX;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Try to remove UV seams
+void RemoveUVSeams (aiMesh* mesh, aiVector3D* out)
+{
+    // TODO: just a very rough algorithm. I think it could be done
+    // much easier, but I don't know how and am currently too tired to
+    // to think about a better solution.
+
+    const static ai_real LOWER_LIMIT = ai_real( 0.1 );
+    const static ai_real UPPER_LIMIT = ai_real( 0.9 );
+
+    const static ai_real LOWER_EPSILON = ai_real( 10e-3 );
+    const static ai_real UPPER_EPSILON = ai_real( 1.0-10e-3 );
+
+    for (unsigned int fidx = 0; fidx < mesh->mNumFaces;++fidx)
+    {
+        const aiFace& face = mesh->mFaces[fidx];
+        if (face.mNumIndices < 3) continue; // triangles and polygons only, please
+
+        unsigned int small = face.mNumIndices, large = small;
+        bool zero = false, one = false, round_to_zero = false;
+
+        // Check whether this face lies on a UV seam. We can just guess,
+        // but the assumption that a face with at least one very small
+        // on the one side and one very large U coord on the other side
+        // lies on a UV seam should work for most cases.
+        for (unsigned int n = 0; n < face.mNumIndices;++n)
+        {
+            if (out[face.mIndices[n]].x < LOWER_LIMIT)
+            {
+                small = n;
+
+                // If we have a U value very close to 0 we can't
+                // round the others to 0, too.
+                if (out[face.mIndices[n]].x <= LOWER_EPSILON)
+                    zero = true;
+                else round_to_zero = true;
+            }
+            if (out[face.mIndices[n]].x > UPPER_LIMIT)
+            {
+                large = n;
+
+                // If we have a U value very close to 1 we can't
+                // round the others to 1, too.
+                if (out[face.mIndices[n]].x >= UPPER_EPSILON)
+                    one = true;
+            }
+        }
+        if (small != face.mNumIndices && large != face.mNumIndices)
+        {
+            for (unsigned int n = 0; n < face.mNumIndices;++n)
+            {
+                // If the u value is over the upper limit and no other u
+                // value of that face is 0, round it to 0
+                if (out[face.mIndices[n]].x > UPPER_LIMIT && !zero)
+                    out[face.mIndices[n]].x = 0.0;
+
+                // If the u value is below the lower limit and no other u
+                // value of that face is 1, round it to 1
+                else if (out[face.mIndices[n]].x < LOWER_LIMIT && !one)
+                    out[face.mIndices[n]].x = 1.0;
+
+                // The face contains both 0 and 1 as UV coords. This can occur
+                // for faces which have an edge that lies directly on the seam.
+                // Due to numerical inaccuracies one U coord becomes 0, the
+                // other 1. But we do still have a third UV coord to determine
+                // to which side we must round to.
+                else if (one && zero)
+                {
+                    if (round_to_zero && out[face.mIndices[n]].x >=  UPPER_EPSILON)
+                        out[face.mIndices[n]].x = 0.0;
+                    else if (!round_to_zero && out[face.mIndices[n]].x <= LOWER_EPSILON)
+                        out[face.mIndices[n]].x = 1.0;
+                }
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ComputeUVMappingProcess::ComputeSphereMapping(aiMesh* mesh,const aiVector3D& axis, aiVector3D* out)
+{
+    aiVector3D center, min, max;
+    FindMeshCenter(mesh, center, min, max);
+
+    // If the axis is one of x,y,z run a faster code path. It's worth the extra effort ...
+    // currently the mapping axis will always be one of x,y,z, except if the
+    // PretransformVertices step is used (it transforms the meshes into worldspace,
+    // thus changing the mapping axis)
+    if (axis * base_axis_x >= angle_epsilon)    {
+
+        // For each point get a normalized projection vector in the sphere,
+        // get its longitude and latitude and map them to their respective
+        // UV axes. Problems occur around the poles ... unsolvable.
+        //
+        // The spherical coordinate system looks like this:
+        // x = cos(lon)*cos(lat)
+        // y = sin(lon)*cos(lat)
+        // z = sin(lat)
+        //
+        // Thus we can derive:
+        // lat  = arcsin (z)
+        // lon  = arctan (y/x)
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D diff = (mesh->mVertices[pnt]-center).Normalize();
+            out[pnt] = aiVector3D((std::atan2(diff.z, diff.y) + AI_MATH_PI_F ) / AI_MATH_TWO_PI_F,
+                (std::asin  (diff.x) + AI_MATH_HALF_PI_F) / AI_MATH_PI_F, 0.0);
+        }
+    }
+    else if (axis * base_axis_y >= angle_epsilon)   {
+        // ... just the same again
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D diff = (mesh->mVertices[pnt]-center).Normalize();
+            out[pnt] = aiVector3D((std::atan2(diff.x, diff.z) + AI_MATH_PI_F ) / AI_MATH_TWO_PI_F,
+                (std::asin  (diff.y) + AI_MATH_HALF_PI_F) / AI_MATH_PI_F, 0.0);
+        }
+    }
+    else if (axis * base_axis_z >= angle_epsilon)   {
+        // ... just the same again
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D diff = (mesh->mVertices[pnt]-center).Normalize();
+            out[pnt] = aiVector3D((std::atan2(diff.y, diff.x) + AI_MATH_PI_F ) / AI_MATH_TWO_PI_F,
+                (std::asin  (diff.z) + AI_MATH_HALF_PI_F) / AI_MATH_PI_F, 0.0);
+        }
+    }
+    // slower code path in case the mapping axis is not one of the coordinate system axes
+    else    {
+        aiMatrix4x4 mTrafo;
+        aiMatrix4x4::FromToMatrix(axis,base_axis_y,mTrafo);
+
+        // again the same, except we're applying a transformation now
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D diff = ((mTrafo*mesh->mVertices[pnt])-center).Normalize();
+            out[pnt] = aiVector3D((std::atan2(diff.y, diff.x) + AI_MATH_PI_F ) / AI_MATH_TWO_PI_F,
+                (std::asin(diff.z) + AI_MATH_HALF_PI_F) / AI_MATH_PI_F, 0.0);
+        }
+    }
+
+
+    // Now find and remove UV seams. A seam occurs if a face has a tcoord
+    // close to zero on the one side, and a tcoord close to one on the
+    // other side.
+    RemoveUVSeams(mesh,out);
+}
+
+// ------------------------------------------------------------------------------------------------
+void ComputeUVMappingProcess::ComputeCylinderMapping(aiMesh* mesh,const aiVector3D& axis, aiVector3D* out)
+{
+    aiVector3D center, min, max;
+
+    // If the axis is one of x,y,z run a faster code path. It's worth the extra effort ...
+    // currently the mapping axis will always be one of x,y,z, except if the
+    // PretransformVertices step is used (it transforms the meshes into worldspace,
+    // thus changing the mapping axis)
+    if (axis * base_axis_x >= angle_epsilon)    {
+        FindMeshCenter(mesh, center, min, max);
+        const ai_real diff = max.x - min.x;
+
+        // If the main axis is 'z', the z coordinate of a point 'p' is mapped
+        // directly to the texture V axis. The other axis is derived from
+        // the angle between ( p.x - c.x, p.y - c.y ) and (1,0), where
+        // 'c' is the center point of the mesh.
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D& pos = mesh->mVertices[pnt];
+            aiVector3D& uv  = out[pnt];
+
+            uv.y = (pos.x - min.x) / diff;
+            uv.x = (std::atan2( pos.z - center.z, pos.y - center.y) +(ai_real)AI_MATH_PI ) / (ai_real)AI_MATH_TWO_PI;
+        }
+    }
+    else if (axis * base_axis_y >= angle_epsilon)   {
+        FindMeshCenter(mesh, center, min, max);
+        const ai_real diff = max.y - min.y;
+
+        // just the same ...
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D& pos = mesh->mVertices[pnt];
+            aiVector3D& uv  = out[pnt];
+
+            uv.y = (pos.y - min.y) / diff;
+            uv.x = (std::atan2( pos.x - center.x, pos.z - center.z) +(ai_real)AI_MATH_PI ) / (ai_real)AI_MATH_TWO_PI;
+        }
+    }
+    else if (axis * base_axis_z >= angle_epsilon)   {
+        FindMeshCenter(mesh, center, min, max);
+        const ai_real diff = max.z - min.z;
+
+        // just the same ...
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D& pos = mesh->mVertices[pnt];
+            aiVector3D& uv  = out[pnt];
+
+            uv.y = (pos.z - min.z) / diff;
+            uv.x = (std::atan2( pos.y - center.y, pos.x - center.x) +(ai_real)AI_MATH_PI ) / (ai_real)AI_MATH_TWO_PI;
+        }
+    }
+    // slower code path in case the mapping axis is not one of the coordinate system axes
+    else {
+        aiMatrix4x4 mTrafo;
+        aiMatrix4x4::FromToMatrix(axis,base_axis_y,mTrafo);
+        FindMeshCenterTransformed(mesh, center, min, max,mTrafo);
+        const ai_real diff = max.y - min.y;
+
+        // again the same, except we're applying a transformation now
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt){
+            const aiVector3D pos = mTrafo* mesh->mVertices[pnt];
+            aiVector3D& uv  = out[pnt];
+
+            uv.y = (pos.y - min.y) / diff;
+            uv.x = (std::atan2( pos.x - center.x, pos.z - center.z) +(ai_real)AI_MATH_PI ) / (ai_real)AI_MATH_TWO_PI;
+        }
+    }
+
+    // Now find and remove UV seams. A seam occurs if a face has a tcoord
+    // close to zero on the one side, and a tcoord close to one on the
+    // other side.
+    RemoveUVSeams(mesh,out);
+}
+
+// ------------------------------------------------------------------------------------------------
+void ComputeUVMappingProcess::ComputePlaneMapping(aiMesh* mesh,const aiVector3D& axis, aiVector3D* out)
+{
+    ai_real diffu,diffv;
+    aiVector3D center, min, max;
+
+    // If the axis is one of x,y,z run a faster code path. It's worth the extra effort ...
+    // currently the mapping axis will always be one of x,y,z, except if the
+    // PretransformVertices step is used (it transforms the meshes into worldspace,
+    // thus changing the mapping axis)
+    if (axis * base_axis_x >= angle_epsilon)    {
+        FindMeshCenter(mesh, center, min, max);
+        diffu = max.z - min.z;
+        diffv = max.y - min.y;
+
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D& pos = mesh->mVertices[pnt];
+            out[pnt].Set((pos.z - min.z) / diffu,(pos.y - min.y) / diffv,0.0);
+        }
+    }
+    else if (axis * base_axis_y >= angle_epsilon)   {
+        FindMeshCenter(mesh, center, min, max);
+        diffu = max.x - min.x;
+        diffv = max.z - min.z;
+
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D& pos = mesh->mVertices[pnt];
+            out[pnt].Set((pos.x - min.x) / diffu,(pos.z - min.z) / diffv,0.0);
+        }
+    }
+    else if (axis * base_axis_z >= angle_epsilon)   {
+        FindMeshCenter(mesh, center, min, max);
+        diffu = max.y - min.y;
+        diffv = max.z - min.z;
+
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D& pos = mesh->mVertices[pnt];
+            out[pnt].Set((pos.y - min.y) / diffu,(pos.x - min.x) / diffv,0.0);
+        }
+    }
+    // slower code path in case the mapping axis is not one of the coordinate system axes
+    else
+    {
+        aiMatrix4x4 mTrafo;
+        aiMatrix4x4::FromToMatrix(axis,base_axis_y,mTrafo);
+        FindMeshCenterTransformed(mesh, center, min, max,mTrafo);
+        diffu = max.x - min.x;
+        diffv = max.z - min.z;
+
+        // again the same, except we're applying a transformation now
+        for (unsigned int pnt = 0; pnt < mesh->mNumVertices;++pnt)  {
+            const aiVector3D pos = mTrafo * mesh->mVertices[pnt];
+            out[pnt].Set((pos.x - min.x) / diffu,(pos.z - min.z) / diffv,0.0);
+        }
+    }
+
+    // shouldn't be necessary to remove UV seams ...
+}
+
+// ------------------------------------------------------------------------------------------------
+void ComputeUVMappingProcess::ComputeBoxMapping( aiMesh*, aiVector3D* )
+{
+    ASSIMP_LOG_ERROR("Mapping type currently not implemented");
+}
+
+// ------------------------------------------------------------------------------------------------
+void ComputeUVMappingProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("GenUVCoordsProcess begin");
+    char buffer[1024];
+
+    if (pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT)
+        throw DeadlyImportError("Post-processing order mismatch: expecting pseudo-indexed (\"verbose\") vertices here");
+
+    std::list<MappingInfo> mappingStack;
+
+    /*  Iterate through all materials and search for non-UV mapped textures
+     */
+    for (unsigned int i = 0; i < pScene->mNumMaterials;++i)
+    {
+        mappingStack.clear();
+        aiMaterial* mat = pScene->mMaterials[i];
+        for (unsigned int a = 0; a < mat->mNumProperties;++a)
+        {
+            aiMaterialProperty* prop = mat->mProperties[a];
+            if (!::strcmp( prop->mKey.data, "$tex.mapping"))
+            {
+                aiTextureMapping& mapping = *((aiTextureMapping*)prop->mData);
+                if (aiTextureMapping_UV != mapping)
+                {
+                    if (!DefaultLogger::isNullLogger())
+                    {
+                        ai_snprintf(buffer, 1024, "Found non-UV mapped texture (%s,%u). Mapping type: %s",
+                            TextureTypeToString((aiTextureType)prop->mSemantic),prop->mIndex,
+                            MappingTypeToString(mapping));
+
+                        ASSIMP_LOG_INFO(buffer);
+                    }
+
+                    if (aiTextureMapping_OTHER == mapping)
+                        continue;
+
+                    MappingInfo info (mapping);
+
+                    // Get further properties - currently only the major axis
+                    for (unsigned int a2 = 0; a2 < mat->mNumProperties;++a2)
+                    {
+                        aiMaterialProperty* prop2 = mat->mProperties[a2];
+                        if (prop2->mSemantic != prop->mSemantic || prop2->mIndex != prop->mIndex)
+                            continue;
+
+                        if ( !::strcmp( prop2->mKey.data, "$tex.mapaxis"))  {
+                            info.axis = *((aiVector3D*)prop2->mData);
+                            break;
+                        }
+                    }
+
+                    unsigned int idx( 99999999 );
+
+                    // Check whether we have this mapping mode already
+                    std::list<MappingInfo>::iterator it = std::find (mappingStack.begin(),mappingStack.end(), info);
+                    if (mappingStack.end() != it)
+                    {
+                        idx = (*it).uv;
+                    }
+                    else
+                    {
+                        /*  We have found a non-UV mapped texture. Now
+                        *   we need to find all meshes using this material
+                        *   that we can compute UV channels for them.
+                        */
+                        for (unsigned int m = 0; m < pScene->mNumMeshes;++m)
+                        {
+                            aiMesh* mesh = pScene->mMeshes[m];
+                            unsigned int outIdx = 0;
+                            if ( mesh->mMaterialIndex != i || ( outIdx = FindEmptyUVChannel(mesh) ) == UINT_MAX ||
+                                !mesh->mNumVertices)
+                            {
+                                continue;
+                            }
+
+                            // Allocate output storage
+                            aiVector3D* p = mesh->mTextureCoords[outIdx] = new aiVector3D[mesh->mNumVertices];
+
+                            switch (mapping)
+                            {
+                            case aiTextureMapping_SPHERE:
+                                ComputeSphereMapping(mesh,info.axis,p);
+                                break;
+                            case aiTextureMapping_CYLINDER:
+                                ComputeCylinderMapping(mesh,info.axis,p);
+                                break;
+                            case aiTextureMapping_PLANE:
+                                ComputePlaneMapping(mesh,info.axis,p);
+                                break;
+                            case aiTextureMapping_BOX:
+                                ComputeBoxMapping(mesh,p);
+                                break;
+                            default:
+                                ai_assert(false);
+                            }
+                            if (m && idx != outIdx)
+                            {
+                                ASSIMP_LOG_WARN("UV index mismatch. Not all meshes assigned to "
+                                    "this material have equal numbers of UV channels. The UV index stored in  "
+                                    "the material structure does therefore not apply for all meshes. ");
+                            }
+                            idx = outIdx;
+                        }
+                        info.uv = idx;
+                        mappingStack.push_back(info);
+                    }
+
+                    // Update the material property list
+                    mapping = aiTextureMapping_UV;
+                    ((aiMaterial*)mat)->AddProperty(&idx,1,AI_MATKEY_UVWSRC(prop->mSemantic,prop->mIndex));
+                }
+            }
+        }
+    }
+    ASSIMP_LOG_DEBUG("GenUVCoordsProcess finished");
+}
diff --git a/thirdparty/assimp/code/ComputeUVMappingProcess.h b/thirdparty/assimp/code/ComputeUVMappingProcess.h
new file mode 100644
index 0000000000..24f6bb7218
--- /dev/null
+++ b/thirdparty/assimp/code/ComputeUVMappingProcess.h
@@ -0,0 +1,148 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to compute UV coordinates
+  from abstract mappings, such as box or spherical*/
+#ifndef AI_COMPUTEUVMAPPING_H_INC
+#define AI_COMPUTEUVMAPPING_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+#include <assimp/material.h>
+#include <assimp/types.h>
+
+class ComputeUVMappingTest;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** ComputeUVMappingProcess - converts special mappings, such as spherical,
+ *  cylindrical or boxed to proper UV coordinates for rendering.
+*/
+class ComputeUVMappingProcess : public BaseProcess
+{
+public:
+    ComputeUVMappingProcess();
+    ~ComputeUVMappingProcess();
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+    * @param pFlags The processing flags the importer was called with. A bitwise
+    *   combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Computes spherical UV coordinates for a mesh
+     *
+     *  @param mesh Mesh to be processed
+     *  @param axis Main axis
+     *  @param out Receives output UV coordinates
+    */
+    void ComputeSphereMapping(aiMesh* mesh,const aiVector3D& axis,
+        aiVector3D* out);
+
+    // -------------------------------------------------------------------
+    /** Computes cylindrical UV coordinates for a mesh
+     *
+     *  @param mesh Mesh to be processed
+     *  @param axis Main axis
+     *  @param out Receives output UV coordinates
+    */
+    void ComputeCylinderMapping(aiMesh* mesh,const aiVector3D& axis,
+        aiVector3D* out);
+
+    // -------------------------------------------------------------------
+    /** Computes planar UV coordinates for a mesh
+     *
+     *  @param mesh Mesh to be processed
+     *  @param axis Main axis
+     *  @param out Receives output UV coordinates
+    */
+    void ComputePlaneMapping(aiMesh* mesh,const aiVector3D& axis,
+        aiVector3D* out);
+
+    // -------------------------------------------------------------------
+    /** Computes cubic UV coordinates for a mesh
+     *
+     *  @param mesh Mesh to be processed
+     *  @param out Receives output UV coordinates
+    */
+    void ComputeBoxMapping(aiMesh* mesh, aiVector3D* out);
+
+private:
+
+    // temporary structure to describe a mapping
+    struct MappingInfo
+    {
+        explicit MappingInfo(aiTextureMapping _type)
+            : type  (_type)
+            , axis  (0.f,1.f,0.f)
+            , uv    (0u)
+        {}
+
+        aiTextureMapping type;
+        aiVector3D axis;
+        unsigned int uv;
+
+        bool operator== (const MappingInfo& other)
+        {
+            return type == other.type && axis == other.axis;
+        }
+    };
+};
+
+} // end of namespace Assimp
+
+#endif // AI_COMPUTEUVMAPPING_H_INC
diff --git a/thirdparty/assimp/code/ConvertToLHProcess.cpp b/thirdparty/assimp/code/ConvertToLHProcess.cpp
new file mode 100644
index 0000000000..b7cd4f0bc6
--- /dev/null
+++ b/thirdparty/assimp/code/ConvertToLHProcess.cpp
@@ -0,0 +1,414 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  MakeLeftHandedProcess.cpp
+ *  @brief Implementation of the post processing step to convert all
+ *  imported data to a left-handed coordinate system.
+ *
+ *  Face order & UV flip are also implemented here, for the sake of a
+ *  better location.
+ */
+
+
+#include "ConvertToLHProcess.h"
+#include <assimp/scene.h>
+#include <assimp/postprocess.h>
+#include <assimp/DefaultLogger.hpp>
+
+using namespace Assimp;
+
+#ifndef ASSIMP_BUILD_NO_MAKELEFTHANDED_PROCESS
+
+namespace {
+
+template <typename aiMeshType>
+void flipUVs(aiMeshType* pMesh) {
+    if (pMesh == nullptr) { return; }
+    // mirror texture y coordinate
+    for (unsigned int tcIdx = 0; tcIdx < AI_MAX_NUMBER_OF_TEXTURECOORDS; tcIdx++) {
+        if (!pMesh->HasTextureCoords(tcIdx)) {
+            break;
+        }
+
+        for (unsigned int vIdx = 0; vIdx < pMesh->mNumVertices; vIdx++) {
+            pMesh->mTextureCoords[tcIdx][vIdx].y = 1.0f - pMesh->mTextureCoords[tcIdx][vIdx].y;
+        }
+    }
+}
+
+} // namespace
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+MakeLeftHandedProcess::MakeLeftHandedProcess()
+: BaseProcess() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+MakeLeftHandedProcess::~MakeLeftHandedProcess() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool MakeLeftHandedProcess::IsActive( unsigned int pFlags) const
+{
+    return 0 != (pFlags & aiProcess_MakeLeftHanded);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void MakeLeftHandedProcess::Execute( aiScene* pScene)
+{
+    // Check for an existent root node to proceed
+    ai_assert(pScene->mRootNode != NULL);
+    ASSIMP_LOG_DEBUG("MakeLeftHandedProcess begin");
+
+    // recursively convert all the nodes
+    ProcessNode( pScene->mRootNode, aiMatrix4x4());
+
+    // process the meshes accordingly
+    for ( unsigned int a = 0; a < pScene->mNumMeshes; ++a ) {
+        ProcessMesh( pScene->mMeshes[ a ] );
+    }
+
+    // process the materials accordingly
+    for ( unsigned int a = 0; a < pScene->mNumMaterials; ++a ) {
+        ProcessMaterial( pScene->mMaterials[ a ] );
+    }
+
+    // transform all animation channels as well
+    for( unsigned int a = 0; a < pScene->mNumAnimations; a++)
+    {
+        aiAnimation* anim = pScene->mAnimations[a];
+        for( unsigned int b = 0; b < anim->mNumChannels; b++)
+        {
+            aiNodeAnim* nodeAnim = anim->mChannels[b];
+            ProcessAnimation( nodeAnim);
+        }
+    }
+    ASSIMP_LOG_DEBUG("MakeLeftHandedProcess finished");
+}
+
+// ------------------------------------------------------------------------------------------------
+// Recursively converts a node, all of its children and all of its meshes
+void MakeLeftHandedProcess::ProcessNode( aiNode* pNode, const aiMatrix4x4& pParentGlobalRotation)
+{
+    // mirror all base vectors at the local Z axis
+    pNode->mTransformation.c1 = -pNode->mTransformation.c1;
+    pNode->mTransformation.c2 = -pNode->mTransformation.c2;
+    pNode->mTransformation.c3 = -pNode->mTransformation.c3;
+    pNode->mTransformation.c4 = -pNode->mTransformation.c4;
+
+    // now invert the Z axis again to keep the matrix determinant positive.
+    // The local meshes will be inverted accordingly so that the result should look just fine again.
+    pNode->mTransformation.a3 = -pNode->mTransformation.a3;
+    pNode->mTransformation.b3 = -pNode->mTransformation.b3;
+    pNode->mTransformation.c3 = -pNode->mTransformation.c3;
+    pNode->mTransformation.d3 = -pNode->mTransformation.d3; // useless, but anyways...
+
+    // continue for all children
+    for( size_t a = 0; a < pNode->mNumChildren; ++a ) {
+        ProcessNode( pNode->mChildren[ a ], pParentGlobalRotation * pNode->mTransformation );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Converts a single mesh to left handed coordinates.
+void MakeLeftHandedProcess::ProcessMesh( aiMesh* pMesh) {
+    if ( nullptr == pMesh ) {
+        ASSIMP_LOG_ERROR( "Nullptr to mesh found." );
+        return;
+    }
+    // mirror positions, normals and stuff along the Z axis
+    for( size_t a = 0; a < pMesh->mNumVertices; ++a)
+    {
+        pMesh->mVertices[a].z *= -1.0f;
+        if (pMesh->HasNormals()) {
+            pMesh->mNormals[a].z *= -1.0f;
+        }
+        if( pMesh->HasTangentsAndBitangents())
+        {
+            pMesh->mTangents[a].z *= -1.0f;
+            pMesh->mBitangents[a].z *= -1.0f;
+        }
+    }
+
+    // mirror anim meshes positions, normals and stuff along the Z axis
+    for (size_t m = 0; m < pMesh->mNumAnimMeshes; ++m)
+    {
+        for (size_t a = 0; a < pMesh->mAnimMeshes[m]->mNumVertices; ++a)
+        {
+            pMesh->mAnimMeshes[m]->mVertices[a].z *= -1.0f;
+            if (pMesh->mAnimMeshes[m]->HasNormals()) {
+                pMesh->mAnimMeshes[m]->mNormals[a].z *= -1.0f;
+            }
+            if (pMesh->mAnimMeshes[m]->HasTangentsAndBitangents())
+            {
+                pMesh->mAnimMeshes[m]->mTangents[a].z *= -1.0f;
+                pMesh->mAnimMeshes[m]->mBitangents[a].z *= -1.0f;
+            }
+        }
+    }
+
+    // mirror offset matrices of all bones
+    for( size_t a = 0; a < pMesh->mNumBones; ++a)
+    {
+        aiBone* bone = pMesh->mBones[a];
+        bone->mOffsetMatrix.a3 = -bone->mOffsetMatrix.a3;
+        bone->mOffsetMatrix.b3 = -bone->mOffsetMatrix.b3;
+        bone->mOffsetMatrix.d3 = -bone->mOffsetMatrix.d3;
+        bone->mOffsetMatrix.c1 = -bone->mOffsetMatrix.c1;
+        bone->mOffsetMatrix.c2 = -bone->mOffsetMatrix.c2;
+        bone->mOffsetMatrix.c4 = -bone->mOffsetMatrix.c4;
+    }
+
+    // mirror bitangents as well as they're derived from the texture coords
+    if( pMesh->HasTangentsAndBitangents())
+    {
+        for( unsigned int a = 0; a < pMesh->mNumVertices; a++)
+            pMesh->mBitangents[a] *= -1.0f;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Converts a single material to left handed coordinates.
+void MakeLeftHandedProcess::ProcessMaterial( aiMaterial* _mat) {
+    if ( nullptr == _mat ) {
+        ASSIMP_LOG_ERROR( "Nullptr to aiMaterial found." );
+        return;
+    }
+
+    aiMaterial* mat = (aiMaterial*)_mat;
+    for (unsigned int a = 0; a < mat->mNumProperties;++a)   {
+        aiMaterialProperty* prop = mat->mProperties[a];
+
+        // Mapping axis for UV mappings?
+        if (!::strcmp( prop->mKey.data, "$tex.mapaxis"))    {
+            ai_assert( prop->mDataLength >= sizeof(aiVector3D)); /* something is wrong with the validation if we end up here */
+            aiVector3D* pff = (aiVector3D*)prop->mData;
+            pff->z *= -1.f;
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Converts the given animation to LH coordinates.
+void MakeLeftHandedProcess::ProcessAnimation( aiNodeAnim* pAnim)
+{
+    // position keys
+    for( unsigned int a = 0; a < pAnim->mNumPositionKeys; a++)
+        pAnim->mPositionKeys[a].mValue.z *= -1.0f;
+
+    // rotation keys
+    for( unsigned int a = 0; a < pAnim->mNumRotationKeys; a++)
+    {
+        /* That's the safe version, but the float errors add up. So we try the short version instead
+        aiMatrix3x3 rotmat = pAnim->mRotationKeys[a].mValue.GetMatrix();
+        rotmat.a3 = -rotmat.a3; rotmat.b3 = -rotmat.b3;
+        rotmat.c1 = -rotmat.c1; rotmat.c2 = -rotmat.c2;
+        aiQuaternion rotquat( rotmat);
+        pAnim->mRotationKeys[a].mValue = rotquat;
+        */
+        pAnim->mRotationKeys[a].mValue.x *= -1.0f;
+        pAnim->mRotationKeys[a].mValue.y *= -1.0f;
+    }
+}
+
+#endif // !!  ASSIMP_BUILD_NO_MAKELEFTHANDED_PROCESS
+#ifndef  ASSIMP_BUILD_NO_FLIPUVS_PROCESS
+// # FlipUVsProcess
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+FlipUVsProcess::FlipUVsProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FlipUVsProcess::~FlipUVsProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool FlipUVsProcess::IsActive( unsigned int pFlags) const
+{
+    return 0 != (pFlags & aiProcess_FlipUVs);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void FlipUVsProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("FlipUVsProcess begin");
+    for (unsigned int i = 0; i < pScene->mNumMeshes;++i)
+        ProcessMesh(pScene->mMeshes[i]);
+
+    for (unsigned int i = 0; i < pScene->mNumMaterials;++i)
+        ProcessMaterial(pScene->mMaterials[i]);
+    ASSIMP_LOG_DEBUG("FlipUVsProcess finished");
+}
+
+// ------------------------------------------------------------------------------------------------
+// Converts a single material
+void FlipUVsProcess::ProcessMaterial (aiMaterial* _mat)
+{
+    aiMaterial* mat = (aiMaterial*)_mat;
+    for (unsigned int a = 0; a < mat->mNumProperties;++a)   {
+        aiMaterialProperty* prop = mat->mProperties[a];
+        if( !prop ) {
+            ASSIMP_LOG_DEBUG( "Property is null" );
+            continue;
+        }
+
+        // UV transformation key?
+        if (!::strcmp( prop->mKey.data, "$tex.uvtrafo"))    {
+            ai_assert( prop->mDataLength >= sizeof(aiUVTransform));  /* something is wrong with the validation if we end up here */
+            aiUVTransform* uv = (aiUVTransform*)prop->mData;
+
+            // just flip it, that's everything
+            uv->mTranslation.y *= -1.f;
+            uv->mRotation *= -1.f;
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Converts a single mesh
+void FlipUVsProcess::ProcessMesh( aiMesh* pMesh)
+{
+    flipUVs(pMesh);
+    for (unsigned int idx = 0; idx < pMesh->mNumAnimMeshes; idx++) {
+        flipUVs(pMesh->mAnimMeshes[idx]);
+    }
+}
+
+#endif // !ASSIMP_BUILD_NO_FLIPUVS_PROCESS
+#ifndef  ASSIMP_BUILD_NO_FLIPWINDING_PROCESS
+// # FlipWindingOrderProcess
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+FlipWindingOrderProcess::FlipWindingOrderProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FlipWindingOrderProcess::~FlipWindingOrderProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool FlipWindingOrderProcess::IsActive( unsigned int pFlags) const
+{
+    return 0 != (pFlags & aiProcess_FlipWindingOrder);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void FlipWindingOrderProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("FlipWindingOrderProcess begin");
+    for (unsigned int i = 0; i < pScene->mNumMeshes;++i)
+        ProcessMesh(pScene->mMeshes[i]);
+    ASSIMP_LOG_DEBUG("FlipWindingOrderProcess finished");
+}
+
+// ------------------------------------------------------------------------------------------------
+// Converts a single mesh
+void FlipWindingOrderProcess::ProcessMesh( aiMesh* pMesh)
+{
+    // invert the order of all faces in this mesh
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++)
+    {
+        aiFace& face = pMesh->mFaces[a];
+        for (unsigned int b = 0; b < face.mNumIndices / 2; b++) {
+            std::swap(face.mIndices[b], face.mIndices[face.mNumIndices - 1 - b]);
+        }
+    }
+
+    // invert the order of all components in this mesh anim meshes
+    for (unsigned int m = 0; m < pMesh->mNumAnimMeshes; m++) {
+        aiAnimMesh* animMesh = pMesh->mAnimMeshes[m];
+        unsigned int numVertices = animMesh->mNumVertices;
+        if (animMesh->HasPositions()) {
+            for (unsigned int a = 0; a < numVertices; a++)
+            {
+                std::swap(animMesh->mVertices[a], animMesh->mVertices[numVertices - 1 - a]);
+            }
+        }
+        if (animMesh->HasNormals()) {
+            for (unsigned int a = 0; a < numVertices; a++)
+            {
+                std::swap(animMesh->mNormals[a], animMesh->mNormals[numVertices - 1 - a]);
+            }
+        }
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; i++) {
+            if (animMesh->HasTextureCoords(i)) {
+                for (unsigned int a = 0; a < numVertices; a++)
+                {
+                    std::swap(animMesh->mTextureCoords[i][a], animMesh->mTextureCoords[i][numVertices - 1 - a]);
+                }
+            }
+        }
+        if (animMesh->HasTangentsAndBitangents()) {
+            for (unsigned int a = 0; a < numVertices; a++)
+            {
+                std::swap(animMesh->mTangents[a], animMesh->mTangents[numVertices - 1 - a]);
+                std::swap(animMesh->mBitangents[a], animMesh->mBitangents[numVertices - 1 - a]);
+            }
+        }
+        for (unsigned int v = 0; v < AI_MAX_NUMBER_OF_COLOR_SETS; v++) {
+            if (animMesh->HasVertexColors(v)) {
+                for (unsigned int a = 0; a < numVertices; a++)
+                {
+                    std::swap(animMesh->mColors[v][a], animMesh->mColors[v][numVertices - 1 - a]);
+                }
+            }
+        }
+    }
+}
+
+#endif // !! ASSIMP_BUILD_NO_FLIPWINDING_PROCESS
diff --git a/thirdparty/assimp/code/ConvertToLHProcess.h b/thirdparty/assimp/code/ConvertToLHProcess.h
new file mode 100644
index 0000000000..63351568d0
--- /dev/null
+++ b/thirdparty/assimp/code/ConvertToLHProcess.h
@@ -0,0 +1,170 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  MakeLeftHandedProcess.h
+ *  @brief Defines a bunch of post-processing steps to handle
+ *    coordinate system conversions.
+ *
+ *  - LH to RH
+ *  - UV origin upper-left to lower-left
+ *  - face order cw to ccw
+ */
+#ifndef AI_CONVERTTOLHPROCESS_H_INC
+#define AI_CONVERTTOLHPROCESS_H_INC
+
+#include <assimp/types.h>
+#include "BaseProcess.h"
+
+struct aiMesh;
+struct aiNodeAnim;
+struct aiNode;
+struct aiMaterial;
+
+namespace Assimp    {
+
+// -----------------------------------------------------------------------------------
+/** @brief The MakeLeftHandedProcess converts all imported data to a left-handed
+ *   coordinate system.
+ *
+ * This implies a mirroring of the Z axis of the coordinate system. But to keep
+ * transformation matrices free from reflections we shift the reflection to other
+ * places. We mirror the meshes and adapt the rotations.
+ *
+ * @note RH-LH and LH-RH is the same, so this class can be used for both
+ */
+class MakeLeftHandedProcess : public BaseProcess
+{
+
+
+public:
+    MakeLeftHandedProcess();
+    ~MakeLeftHandedProcess();
+
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Recursively converts a node and all of its children
+     */
+    void ProcessNode( aiNode* pNode, const aiMatrix4x4& pParentGlobalRotation);
+
+    // -------------------------------------------------------------------
+    /** Converts a single mesh to left handed coordinates.
+     * This means that positions, normals and tangents are mirrored at
+     * the local Z axis and the order of all faces are inverted.
+     * @param pMesh The mesh to convert.
+     */
+    void ProcessMesh( aiMesh* pMesh);
+
+    // -------------------------------------------------------------------
+    /** Converts a single material to left-handed coordinates
+     * @param pMat Material to convert
+     */
+    void ProcessMaterial( aiMaterial* pMat);
+
+    // -------------------------------------------------------------------
+    /** Converts the given animation to LH coordinates.
+     * The rotation and translation keys are transformed, the scale keys
+     * work in local space and can therefore be left untouched.
+     * @param pAnim The bone animation to transform
+     */
+    void ProcessAnimation( aiNodeAnim* pAnim);
+};
+
+
+// ---------------------------------------------------------------------------
+/** Postprocessing step to flip the face order of the imported data
+ */
+class FlipWindingOrderProcess : public BaseProcess
+{
+    friend class Importer;
+
+public:
+    /** Constructor to be privately used by Importer */
+    FlipWindingOrderProcess();
+
+    /** Destructor, private as well */
+    ~FlipWindingOrderProcess();
+
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+protected:
+    void ProcessMesh( aiMesh* pMesh);
+};
+
+// ---------------------------------------------------------------------------
+/** Postprocessing step to flip the UV coordinate system of the import data
+ */
+class FlipUVsProcess : public BaseProcess
+{
+    friend class Importer;
+
+public:
+    /** Constructor to be privately used by Importer */
+    FlipUVsProcess();
+
+    /** Destructor, private as well */
+    ~FlipUVsProcess();
+
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+protected:
+    void ProcessMesh( aiMesh* pMesh);
+    void ProcessMaterial( aiMaterial* mat);
+};
+
+} // end of namespace Assimp
+
+#endif // AI_CONVERTTOLHPROCESS_H_INC
diff --git a/thirdparty/assimp/code/CreateAnimMesh.cpp b/thirdparty/assimp/code/CreateAnimMesh.cpp
new file mode 100644
index 0000000000..1a052849bb
--- /dev/null
+++ b/thirdparty/assimp/code/CreateAnimMesh.cpp
@@ -0,0 +1,92 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (C) 2016 The Qt Company Ltd.
+Copyright (c) 2006-2012, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include <assimp/CreateAnimMesh.h>
+
+namespace Assimp    {
+
+aiAnimMesh *aiCreateAnimMesh(const aiMesh *mesh)
+{
+    aiAnimMesh *animesh = new aiAnimMesh;
+    animesh->mVertices = NULL;
+    animesh->mNormals = NULL;
+    animesh->mTangents = NULL;
+    animesh->mBitangents = NULL;
+    animesh->mNumVertices = mesh->mNumVertices;
+    if (mesh->mVertices) {
+        animesh->mVertices = new aiVector3D[animesh->mNumVertices];
+        std::memcpy(animesh->mVertices, mesh->mVertices, mesh->mNumVertices * sizeof(aiVector3D));
+    }
+    if (mesh->mNormals) {
+        animesh->mNormals = new aiVector3D[animesh->mNumVertices];
+        std::memcpy(animesh->mNormals, mesh->mNormals, mesh->mNumVertices * sizeof(aiVector3D));
+    }
+    if (mesh->mTangents) {
+        animesh->mTangents = new aiVector3D[animesh->mNumVertices];
+        std::memcpy(animesh->mTangents, mesh->mTangents, mesh->mNumVertices * sizeof(aiVector3D));
+    }
+    if (mesh->mBitangents) {
+        animesh->mBitangents = new aiVector3D[animesh->mNumVertices];
+        std::memcpy(animesh->mBitangents, mesh->mBitangents, mesh->mNumVertices * sizeof(aiVector3D));
+    }
+
+    for (int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+        if (mesh->mColors[i]) {
+            animesh->mColors[i] = new aiColor4D[animesh->mNumVertices];
+            std::memcpy(animesh->mColors[i], mesh->mColors[i], mesh->mNumVertices * sizeof(aiColor4D));
+        } else {
+            animesh->mColors[i] = NULL;
+        }
+    }
+
+    for (int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+        if (mesh->mTextureCoords[i]) {
+            animesh->mTextureCoords[i] = new aiVector3D[animesh->mNumVertices];
+            std::memcpy(animesh->mTextureCoords[i], mesh->mTextureCoords[i], mesh->mNumVertices * sizeof(aiVector3D));
+        } else {
+            animesh->mTextureCoords[i] = NULL;
+        }
+    }
+    return animesh;
+}
+
+} // end of namespace Assimp
diff --git a/thirdparty/assimp/code/DeboneProcess.cpp b/thirdparty/assimp/code/DeboneProcess.cpp
new file mode 100644
index 0000000000..83b8336bc9
--- /dev/null
+++ b/thirdparty/assimp/code/DeboneProcess.cpp
@@ -0,0 +1,465 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/// @file DeboneProcess.cpp
+/** Implementation of the DeboneProcess post processing step */
+
+
+
+// internal headers of the post-processing framework
+#include "ProcessHelper.h"
+#include "DeboneProcess.h"
+#include <stdio.h>
+
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+DeboneProcess::DeboneProcess()
+{
+    mNumBones = 0;
+    mNumBonesCanDoWithout = 0;
+
+    mThreshold = AI_DEBONE_THRESHOLD;
+    mAllOrNone = false;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+DeboneProcess::~DeboneProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool DeboneProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_Debone) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void DeboneProcess::SetupProperties(const Importer* pImp)
+{
+    // get the current value of the property
+    mAllOrNone = pImp->GetPropertyInteger(AI_CONFIG_PP_DB_ALL_OR_NONE,0)?true:false;
+    mThreshold = pImp->GetPropertyFloat(AI_CONFIG_PP_DB_THRESHOLD,AI_DEBONE_THRESHOLD);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void DeboneProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("DeboneProcess begin");
+
+    if(!pScene->mNumMeshes) {
+        return;
+    }
+
+    std::vector<bool> splitList(pScene->mNumMeshes);
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++) {
+        splitList[a] = ConsiderMesh( pScene->mMeshes[a] );
+    }
+
+    int numSplits = 0;
+
+    if(!!mNumBonesCanDoWithout && (!mAllOrNone||mNumBonesCanDoWithout==mNumBones))  {
+        for(unsigned int a = 0; a < pScene->mNumMeshes; a++)    {
+            if(splitList[a]) {
+                numSplits++;
+            }
+        }
+    }
+
+    if(numSplits)   {
+        // we need to do something. Let's go.
+        //mSubMeshIndices.clear();                  // really needed?
+        mSubMeshIndices.resize(pScene->mNumMeshes); // because we're doing it here anyway
+
+        // build a new array of meshes for the scene
+        std::vector<aiMesh*> meshes;
+
+        for(unsigned int a=0;a<pScene->mNumMeshes;a++)
+        {
+            aiMesh* srcMesh = pScene->mMeshes[a];
+
+            std::vector<std::pair<aiMesh*,const aiBone*> > newMeshes;
+
+            if(splitList[a]) {
+                SplitMesh(srcMesh,newMeshes);
+            }
+
+            // mesh was split
+            if(!newMeshes.empty())  {
+                unsigned int out = 0, in = srcMesh->mNumBones;
+
+                // store new meshes and indices of the new meshes
+                for(unsigned int b=0;b<newMeshes.size();b++)    {
+                    const aiString *find = newMeshes[b].second?&newMeshes[b].second->mName:0;
+
+                    aiNode *theNode = find?pScene->mRootNode->FindNode(*find):0;
+                    std::pair<unsigned int,aiNode*> push_pair(static_cast<unsigned int>(meshes.size()),theNode);
+
+                    mSubMeshIndices[a].push_back(push_pair);
+                    meshes.push_back(newMeshes[b].first);
+
+                    out+=newMeshes[b].first->mNumBones;
+                }
+
+                if(!DefaultLogger::isNullLogger()) {
+                    ASSIMP_LOG_INFO_F("Removed %u bones. Input bones:", in - out, ". Output bones: ", out);
+                }
+
+                // and destroy the source mesh. It should be completely contained inside the new submeshes
+                delete srcMesh;
+            }
+            else    {
+                // Mesh is kept unchanged - store it's new place in the mesh array
+                mSubMeshIndices[a].push_back(std::pair<unsigned int,aiNode*>(static_cast<unsigned int>(meshes.size()),(aiNode*)0));
+                meshes.push_back(srcMesh);
+            }
+        }
+
+        // rebuild the scene's mesh array
+        pScene->mNumMeshes = static_cast<unsigned int>(meshes.size());
+        delete [] pScene->mMeshes;
+        pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
+        std::copy( meshes.begin(), meshes.end(), pScene->mMeshes);
+
+        // recurse through all nodes and translate the node's mesh indices to fit the new mesh array
+        UpdateNode( pScene->mRootNode);
+    }
+
+    ASSIMP_LOG_DEBUG("DeboneProcess end");
+}
+
+// ------------------------------------------------------------------------------------------------
+// Counts bones total/removable in a given mesh.
+bool DeboneProcess::ConsiderMesh(const aiMesh* pMesh)
+{
+    if(!pMesh->HasBones()) {
+        return false;
+    }
+
+    bool split = false;
+
+    //interstitial faces not permitted
+    bool isInterstitialRequired = false;
+
+    std::vector<bool> isBoneNecessary(pMesh->mNumBones,false);
+    std::vector<unsigned int> vertexBones(pMesh->mNumVertices,UINT_MAX);
+
+    const unsigned int cUnowned = UINT_MAX;
+    const unsigned int cCoowned = UINT_MAX-1;
+
+    for(unsigned int i=0;i<pMesh->mNumBones;i++)    {
+        for(unsigned int j=0;j<pMesh->mBones[i]->mNumWeights;j++)   {
+            float w = pMesh->mBones[i]->mWeights[j].mWeight;
+
+            if(w==0.0f) {
+                continue;
+            }
+
+            unsigned int vid = pMesh->mBones[i]->mWeights[j].mVertexId;
+            if(w>=mThreshold)   {
+
+                if(vertexBones[vid]!=cUnowned)  {
+                    if(vertexBones[vid]==i) //double entry
+                    {
+                        ASSIMP_LOG_WARN("Encountered double entry in bone weights");
+                    }
+                    else //TODO: track attraction in order to break tie
+                    {
+                        vertexBones[vid] = cCoowned;
+                    }
+                }
+                else vertexBones[vid] = i;
+            }
+
+            if(!isBoneNecessary[i]) {
+                isBoneNecessary[i] = w<mThreshold;
+            }
+        }
+
+        if(!isBoneNecessary[i])  {
+            isInterstitialRequired = true;
+        }
+    }
+
+    if(isInterstitialRequired) {
+        for(unsigned int i=0;i<pMesh->mNumFaces;i++) {
+            unsigned int v = vertexBones[pMesh->mFaces[i].mIndices[0]];
+
+            for(unsigned int j=1;j<pMesh->mFaces[i].mNumIndices;j++) {
+                unsigned int w = vertexBones[pMesh->mFaces[i].mIndices[j]];
+
+                if(v!=w)    {
+                    if(v<pMesh->mNumBones) isBoneNecessary[v] = true;
+                    if(w<pMesh->mNumBones) isBoneNecessary[w] = true;
+                }
+            }
+        }
+    }
+
+    for(unsigned int i=0;i<pMesh->mNumBones;i++)    {
+        if(!isBoneNecessary[i]) {
+            mNumBonesCanDoWithout++;
+            split = true;
+        }
+
+        mNumBones++;
+    }
+    return split;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Splits the given mesh by bone count.
+void DeboneProcess::SplitMesh( const aiMesh* pMesh, std::vector< std::pair< aiMesh*,const aiBone* > >& poNewMeshes) const
+{
+    // same deal here as ConsiderMesh basically
+
+    std::vector<bool> isBoneNecessary(pMesh->mNumBones,false);
+    std::vector<unsigned int> vertexBones(pMesh->mNumVertices,UINT_MAX);
+
+    const unsigned int cUnowned = UINT_MAX;
+    const unsigned int cCoowned = UINT_MAX-1;
+
+    for(unsigned int i=0;i<pMesh->mNumBones;i++)    {
+        for(unsigned int j=0;j<pMesh->mBones[i]->mNumWeights;j++)   {
+            float w = pMesh->mBones[i]->mWeights[j].mWeight;
+
+            if(w==0.0f) {
+                continue;
+            }
+
+            unsigned int vid = pMesh->mBones[i]->mWeights[j].mVertexId;
+
+            if(w>=mThreshold) {
+                if(vertexBones[vid]!=cUnowned)  {
+                    if(vertexBones[vid]==i) //double entry
+                    {
+                        ASSIMP_LOG_WARN("Encountered double entry in bone weights");
+                    }
+                    else //TODO: track attraction in order to break tie
+                    {
+                        vertexBones[vid] = cCoowned;
+                    }
+                }
+                else vertexBones[vid] = i;
+            }
+
+            if(!isBoneNecessary[i]) {
+                isBoneNecessary[i] = w<mThreshold;
+            }
+        }
+    }
+
+    unsigned int nFacesUnowned = 0;
+
+    std::vector<unsigned int> faceBones(pMesh->mNumFaces,UINT_MAX);
+    std::vector<unsigned int> facesPerBone(pMesh->mNumBones,0);
+
+    for(unsigned int i=0;i<pMesh->mNumFaces;i++) {
+        unsigned int nInterstitial = 1;
+
+        unsigned int v = vertexBones[pMesh->mFaces[i].mIndices[0]];
+
+        for(unsigned int j=1;j<pMesh->mFaces[i].mNumIndices;j++) {
+            unsigned int w = vertexBones[pMesh->mFaces[i].mIndices[j]];
+
+            if(v!=w)    {
+                if(v<pMesh->mNumBones) isBoneNecessary[v] = true;
+                if(w<pMesh->mNumBones) isBoneNecessary[w] = true;
+            }
+            else nInterstitial++;
+        }
+
+        if(v<pMesh->mNumBones &&nInterstitial==pMesh->mFaces[i].mNumIndices)    {
+            faceBones[i] = v; //primitive belongs to bone #v
+            facesPerBone[v]++;
+        }
+        else nFacesUnowned++;
+    }
+
+    // invalidate any "cojoined" faces
+    for(unsigned int i=0;i<pMesh->mNumFaces;i++) {
+        if(faceBones[i]<pMesh->mNumBones&&isBoneNecessary[faceBones[i]])
+        {
+            ai_assert(facesPerBone[faceBones[i]]>0);
+            facesPerBone[faceBones[i]]--;
+
+            nFacesUnowned++;
+            faceBones[i] = cUnowned;
+        }
+    }
+
+    if(nFacesUnowned) {
+        std::vector<unsigned int> subFaces;
+
+        for(unsigned int i=0;i<pMesh->mNumFaces;i++)    {
+            if(faceBones[i]==cUnowned) {
+                subFaces.push_back(i);
+            }
+        }
+
+        aiMesh *baseMesh = MakeSubmesh(pMesh,subFaces,0);
+        std::pair<aiMesh*,const aiBone*> push_pair(baseMesh,(const aiBone*)0);
+
+        poNewMeshes.push_back(push_pair);
+    }
+
+    for(unsigned int i=0;i<pMesh->mNumBones;i++) {
+
+        if(!isBoneNecessary[i]&&facesPerBone[i]>0)  {
+            std::vector<unsigned int> subFaces;
+
+            for(unsigned int j=0;j<pMesh->mNumFaces;j++)    {
+                if(faceBones[j]==i) {
+                    subFaces.push_back(j);
+                }
+            }
+
+            unsigned int f = AI_SUBMESH_FLAGS_SANS_BONES;
+            aiMesh *subMesh =MakeSubmesh(pMesh,subFaces,f);
+
+            //Lifted from PretransformVertices.cpp
+            ApplyTransform(subMesh,pMesh->mBones[i]->mOffsetMatrix);
+            std::pair<aiMesh*,const aiBone*> push_pair(subMesh,pMesh->mBones[i]);
+
+            poNewMeshes.push_back(push_pair);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Recursively updates the node's mesh list to account for the changed mesh list
+void DeboneProcess::UpdateNode(aiNode* pNode) const
+{
+    // rebuild the node's mesh index list
+
+    std::vector<unsigned int> newMeshList;
+
+    // this will require two passes
+
+    unsigned int m = static_cast<unsigned int>(pNode->mNumMeshes), n = static_cast<unsigned int>(mSubMeshIndices.size());
+
+    // first pass, look for meshes which have not moved
+
+    for(unsigned int a=0;a<m;a++)   {
+
+        unsigned int srcIndex = pNode->mMeshes[a];
+        const std::vector< std::pair< unsigned int,aiNode* > > &subMeshes = mSubMeshIndices[srcIndex];
+        unsigned int nSubmeshes = static_cast<unsigned int>(subMeshes.size());
+
+        for(unsigned int b=0;b<nSubmeshes;b++) {
+            if(!subMeshes[b].second) {
+                newMeshList.push_back(subMeshes[b].first);
+            }
+        }
+    }
+
+    // second pass, collect deboned meshes
+
+    for(unsigned int a=0;a<n;a++)
+    {
+        const std::vector< std::pair< unsigned int,aiNode* > > &subMeshes = mSubMeshIndices[a];
+        unsigned int nSubmeshes = static_cast<unsigned int>(subMeshes.size());
+
+        for(unsigned int b=0;b<nSubmeshes;b++) {
+            if(subMeshes[b].second == pNode)    {
+                newMeshList.push_back(subMeshes[b].first);
+            }
+        }
+    }
+
+    if( pNode->mNumMeshes > 0 ) {
+        delete [] pNode->mMeshes; pNode->mMeshes = NULL;
+    }
+
+    pNode->mNumMeshes = static_cast<unsigned int>(newMeshList.size());
+
+    if(pNode->mNumMeshes)   {
+        pNode->mMeshes = new unsigned int[pNode->mNumMeshes];
+        std::copy( newMeshList.begin(), newMeshList.end(), pNode->mMeshes);
+    }
+
+    // do that also recursively for all children
+    for( unsigned int a = 0; a < pNode->mNumChildren; ++a ) {
+        UpdateNode( pNode->mChildren[a]);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Apply the node transformation to a mesh
+void DeboneProcess::ApplyTransform(aiMesh* mesh, const aiMatrix4x4& mat)const
+{
+    // Check whether we need to transform the coordinates at all
+    if (!mat.IsIdentity()) {
+
+        if (mesh->HasPositions()) {
+            for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+                mesh->mVertices[i] = mat * mesh->mVertices[i];
+            }
+        }
+        if (mesh->HasNormals() || mesh->HasTangentsAndBitangents()) {
+            aiMatrix4x4 mWorldIT = mat;
+            mWorldIT.Inverse().Transpose();
+
+            // TODO: implement Inverse() for aiMatrix3x3
+            aiMatrix3x3 m = aiMatrix3x3(mWorldIT);
+
+            if (mesh->HasNormals()) {
+                for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+                    mesh->mNormals[i] = (m * mesh->mNormals[i]).Normalize();
+                }
+            }
+            if (mesh->HasTangentsAndBitangents()) {
+                for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+                    mesh->mTangents[i]   = (m * mesh->mTangents[i]).Normalize();
+                    mesh->mBitangents[i] = (m * mesh->mBitangents[i]).Normalize();
+                }
+            }
+        }
+    }
+}
diff --git a/thirdparty/assimp/code/DeboneProcess.h b/thirdparty/assimp/code/DeboneProcess.h
new file mode 100644
index 0000000000..ba77aba70e
--- /dev/null
+++ b/thirdparty/assimp/code/DeboneProcess.h
@@ -0,0 +1,134 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Defines a post processing step to limit the number of bones affecting a single vertex. */
+#ifndef AI_DEBONEPROCESS_H_INC
+#define AI_DEBONEPROCESS_H_INC
+
+#include <vector>
+#include <utility>
+#include "BaseProcess.h"
+
+#include <assimp/mesh.h>
+#include <assimp/scene.h>
+
+class DeboneTest;
+
+namespace Assimp
+{
+
+#if (!defined AI_DEBONE_THRESHOLD)
+#   define AI_DEBONE_THRESHOLD  1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+// ---------------------------------------------------------------------------
+/** This post processing step removes bones nearly losslessly or according to
+* a configured threshold. In order to remove the bone, the primitives affected by
+* the bone are split from the mesh. The split off (new) mesh is boneless. At any
+* point in time, bones without affect upon a given mesh are to be removed.
+*/
+class DeboneProcess : public BaseProcess
+{
+public:
+
+    DeboneProcess();
+    ~DeboneProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag.
+    * @param pFlags The processing flags the importer was called with.
+    *   A bitwise combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields,
+    *   false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    void SetupProperties(const Importer* pImp);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    /** Counts bones total/removable in a given mesh.
+    * @param pMesh The mesh to process.
+    */
+    bool ConsiderMesh( const aiMesh* pMesh);
+
+    /// Splits the given mesh by bone count.
+    /// @param pMesh the Mesh to split. Is not changed at all, but might be superfluous in case it was split.
+    /// @param poNewMeshes Array of submeshes created in the process. Empty if splitting was not necessary.
+    void SplitMesh(const aiMesh* pMesh, std::vector< std::pair< aiMesh*,const aiBone* > >& poNewMeshes) const;
+
+    /// Recursively updates the node's mesh list to account for the changed mesh list
+    void UpdateNode(aiNode* pNode) const;
+
+    // -------------------------------------------------------------------
+    // Apply transformation to a mesh
+    void ApplyTransform(aiMesh* mesh, const aiMatrix4x4& mat)const;
+
+public:
+    /** Number of bones present in the scene. */
+    unsigned int mNumBones;
+    unsigned int mNumBonesCanDoWithout;
+
+    float mThreshold;
+    bool mAllOrNone;
+
+    /// Per mesh index: Array of indices of the new submeshes.
+    std::vector< std::vector< std::pair< unsigned int,aiNode* > > > mSubMeshIndices;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_DEBONEPROCESS_H_INC
diff --git a/thirdparty/assimp/code/DefaultIOStream.cpp b/thirdparty/assimp/code/DefaultIOStream.cpp
new file mode 100644
index 0000000000..1c100b6189
--- /dev/null
+++ b/thirdparty/assimp/code/DefaultIOStream.cpp
@@ -0,0 +1,154 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file  DefaultIOStream.cpp
+ *  @brief Default File I/O implementation for #Importer
+ */
+
+
+#include <assimp/ai_assert.h>
+#include <assimp/DefaultIOStream.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+using namespace Assimp;
+
+// ----------------------------------------------------------------------------------
+DefaultIOStream::~DefaultIOStream()
+{
+    if (mFile) {
+        ::fclose(mFile);
+        mFile = nullptr;
+    }
+}
+
+// ----------------------------------------------------------------------------------
+size_t DefaultIOStream::Read(void* pvBuffer,
+    size_t pSize,
+    size_t pCount)
+{
+    ai_assert(NULL != pvBuffer && 0 != pSize && 0 != pCount);
+    return (mFile ? ::fread(pvBuffer, pSize, pCount, mFile) : 0);
+}
+
+// ----------------------------------------------------------------------------------
+size_t DefaultIOStream::Write(const void* pvBuffer,
+    size_t pSize,
+    size_t pCount)
+{
+    ai_assert(NULL != pvBuffer && 0 != pSize && 0 != pCount);
+    return (mFile ? ::fwrite(pvBuffer, pSize, pCount, mFile) : 0);
+}
+
+// ----------------------------------------------------------------------------------
+aiReturn DefaultIOStream::Seek(size_t pOffset,
+     aiOrigin pOrigin)
+{
+    if (!mFile) {
+        return AI_FAILURE;
+    }
+
+    // Just to check whether our enum maps one to one with the CRT constants
+    static_assert(aiOrigin_CUR == SEEK_CUR &&
+        aiOrigin_END == SEEK_END && aiOrigin_SET == SEEK_SET, "aiOrigin_CUR == SEEK_CUR && \
+        aiOrigin_END == SEEK_END && aiOrigin_SET == SEEK_SET");
+
+    // do the seek
+    return (0 == ::fseek(mFile, (long)pOffset,(int)pOrigin) ? AI_SUCCESS : AI_FAILURE);
+}
+
+// ----------------------------------------------------------------------------------
+size_t DefaultIOStream::Tell() const
+{
+    if (!mFile) {
+        return 0;
+    }
+    return ::ftell(mFile);
+}
+
+// ----------------------------------------------------------------------------------
+size_t DefaultIOStream::FileSize() const
+{
+    if (! mFile || mFilename.empty()) {
+        return 0;
+    }
+
+    if (SIZE_MAX == mCachedSize ) {
+
+        // Although fseek/ftell would allow us to reuse the existing file handle here,
+        // it is generally unsafe because:
+        //  - For binary streams, it is not technically well-defined
+        //  - For text files the results are meaningless
+        // That's why we use the safer variant fstat here.
+        //
+        // See here for details:
+        // https://www.securecoding.cert.org/confluence/display/seccode/FIO19-C.+Do+not+use+fseek()+and+ftell()+to+compute+the+size+of+a+regular+file
+#if defined _WIN32 && (!defined __GNUC__ || __MSVCRT_VERSION__ >= 0x0601)
+        struct __stat64 fileStat;
+        //using fileno + fstat avoids having to handle the filename
+        int err = _fstat64(  _fileno(mFile), &fileStat );
+        if (0 != err)
+            return 0;
+        mCachedSize = (size_t) (fileStat.st_size);
+#elif defined __GNUC__ || defined __APPLE__ || defined __MACH__ || defined __FreeBSD__
+        struct stat fileStat;
+        int err = stat(mFilename.c_str(), &fileStat );
+        if (0 != err)
+            return 0;
+        const unsigned long long cachedSize = fileStat.st_size;
+        mCachedSize = static_cast< size_t >( cachedSize );
+#else
+#   error "Unknown platform"
+#endif
+    }
+    return mCachedSize;
+}
+
+// ----------------------------------------------------------------------------------
+void DefaultIOStream::Flush()
+{
+    if (mFile) {
+        ::fflush(mFile);
+    }
+}
+
+// ----------------------------------------------------------------------------------
diff --git a/thirdparty/assimp/code/DefaultIOSystem.cpp b/thirdparty/assimp/code/DefaultIOSystem.cpp
new file mode 100644
index 0000000000..d40b67de32
--- /dev/null
+++ b/thirdparty/assimp/code/DefaultIOSystem.cpp
@@ -0,0 +1,257 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file Default implementation of IOSystem using the standard C file functions */
+
+#include <assimp/StringComparison.h>
+
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/DefaultIOStream.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/ai_assert.h>
+#include <stdlib.h>
+
+#ifdef __unix__
+#include <sys/param.h>
+#include <stdlib.h>
+#endif
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+using namespace Assimp;
+
+// maximum path length
+// XXX http://insanecoding.blogspot.com/2007/11/pathmax-simply-isnt.html
+#ifdef PATH_MAX
+#   define PATHLIMIT PATH_MAX
+#else
+#   define PATHLIMIT 4096
+#endif
+
+// ------------------------------------------------------------------------------------------------
+// Tests for the existence of a file at the given path.
+bool DefaultIOSystem::Exists( const char* pFile) const
+{
+#ifdef _WIN32
+    wchar_t fileName16[PATHLIMIT];
+
+#ifndef WindowsStore
+    bool isUnicode = IsTextUnicode(pFile, static_cast<int>(strlen(pFile)), NULL) != 0;
+    if (isUnicode) {
+
+        MultiByteToWideChar(CP_UTF8, MB_PRECOMPOSED, pFile, -1, fileName16, PATHLIMIT);
+        struct __stat64 filestat;
+        if (0 != _wstat64(fileName16, &filestat)) {
+            return false;
+        }
+    } else {
+#endif
+        FILE* file = ::fopen(pFile, "rb");
+        if (!file)
+            return false;
+
+        ::fclose(file);
+#ifndef WindowsStore
+    }
+#endif
+#else
+    FILE* file = ::fopen( pFile, "rb");
+    if( !file)
+        return false;
+
+    ::fclose( file);
+#endif
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Open a new file with a given path.
+IOStream* DefaultIOSystem::Open( const char* strFile, const char* strMode)
+{
+    ai_assert(NULL != strFile);
+    ai_assert(NULL != strMode);
+    FILE* file;
+#ifdef _WIN32
+    wchar_t fileName16[PATHLIMIT];
+#ifndef WindowsStore
+    bool isUnicode = IsTextUnicode(strFile, static_cast<int>(strlen(strFile)), NULL) != 0;
+    if (isUnicode) {
+        MultiByteToWideChar(CP_UTF8, MB_PRECOMPOSED, strFile, -1, fileName16, PATHLIMIT);
+        std::string mode8(strMode);
+        file = ::_wfopen(fileName16, std::wstring(mode8.begin(), mode8.end()).c_str());
+    } else {
+#endif
+        file = ::fopen(strFile, strMode);
+#ifndef WindowsStore
+    }
+#endif
+#else
+    file = ::fopen(strFile, strMode);
+#endif
+    if (nullptr == file)
+        return nullptr;
+
+    return new DefaultIOStream(file, (std::string) strFile);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Closes the given file and releases all resources associated with it.
+void DefaultIOSystem::Close( IOStream* pFile)
+{
+    delete pFile;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns the operation specific directory separator
+char DefaultIOSystem::getOsSeparator() const
+{
+#ifndef _WIN32
+    return '/';
+#else
+    return '\\';
+#endif
+}
+
+// ------------------------------------------------------------------------------------------------
+// IOSystem default implementation (ComparePaths isn't a pure virtual function)
+bool IOSystem::ComparePaths (const char* one, const char* second) const
+{
+    return !ASSIMP_stricmp(one,second);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Convert a relative path into an absolute path
+inline static void MakeAbsolutePath (const char* in, char* _out)
+{
+    ai_assert(in && _out);
+#if defined( _MSC_VER ) || defined( __MINGW32__ )
+#ifndef WindowsStore
+    bool isUnicode = IsTextUnicode(in, static_cast<int>(strlen(in)), NULL) != 0;
+    if (isUnicode) {
+        wchar_t out16[PATHLIMIT];
+        wchar_t in16[PATHLIMIT];
+        MultiByteToWideChar(CP_UTF8, MB_PRECOMPOSED, in, -1, out16, PATHLIMIT);
+        wchar_t* ret = ::_wfullpath(out16, in16, PATHLIMIT);
+        if (ret) {
+            WideCharToMultiByte(CP_UTF8, MB_PRECOMPOSED, out16, -1, _out, PATHLIMIT, nullptr, nullptr);
+        }
+        if (!ret) {
+            // preserve the input path, maybe someone else is able to fix
+            // the path before it is accessed (e.g. our file system filter)
+            ASSIMP_LOG_WARN_F("Invalid path: ", std::string(in));
+            strcpy(_out, in);
+        }
+
+    } else {
+#endif
+        char* ret = :: _fullpath(_out, in, PATHLIMIT);
+        if (!ret) {
+            // preserve the input path, maybe someone else is able to fix
+            // the path before it is accessed (e.g. our file system filter)
+            ASSIMP_LOG_WARN_F("Invalid path: ", std::string(in));
+            strcpy(_out, in);
+        }
+#ifndef WindowsStore
+    }
+#endif
+#else
+    // use realpath
+    char* ret = realpath(in, _out);
+    if(!ret) {
+        // preserve the input path, maybe someone else is able to fix
+        // the path before it is accessed (e.g. our file system filter)
+        ASSIMP_LOG_WARN_F("Invalid path: ", std::string(in));
+        strcpy(_out,in);
+    }
+#endif
+}
+
+// ------------------------------------------------------------------------------------------------
+// DefaultIOSystem's more specialized implementation
+bool DefaultIOSystem::ComparePaths (const char* one, const char* second) const
+{
+    // chances are quite good both paths are formatted identically,
+    // so we can hopefully return here already
+    if( !ASSIMP_stricmp(one,second) )
+        return true;
+
+    char temp1[PATHLIMIT];
+    char temp2[PATHLIMIT];
+
+    MakeAbsolutePath (one, temp1);
+    MakeAbsolutePath (second, temp2);
+
+    return !ASSIMP_stricmp(temp1,temp2);
+}
+
+// ------------------------------------------------------------------------------------------------
+std::string DefaultIOSystem::fileName( const std::string &path )
+{
+    std::string ret = path;
+    std::size_t last = ret.find_last_of("\\/");
+    if (last != std::string::npos) ret = ret.substr(last + 1);
+    return ret;
+}
+
+// ------------------------------------------------------------------------------------------------
+std::string DefaultIOSystem::completeBaseName( const std::string &path )
+{
+    std::string ret = fileName(path);
+    std::size_t pos = ret.find_last_of('.');
+    if(pos != ret.npos) ret = ret.substr(0, pos);
+    return ret;
+}
+
+// ------------------------------------------------------------------------------------------------
+std::string DefaultIOSystem::absolutePath( const std::string &path )
+{
+    std::string ret = path;
+    std::size_t last = ret.find_last_of("\\/");
+    if (last != std::string::npos) ret = ret.substr(0, last);
+    return ret;
+}
+
+// ------------------------------------------------------------------------------------------------
+
+#undef PATHLIMIT
diff --git a/thirdparty/assimp/code/DefaultLogger.cpp b/thirdparty/assimp/code/DefaultLogger.cpp
new file mode 100644
index 0000000000..de3528d2b4
--- /dev/null
+++ b/thirdparty/assimp/code/DefaultLogger.cpp
@@ -0,0 +1,418 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  DefaultLogger.cpp
+ *  @brief Implementation of DefaultLogger (and Logger)
+ */
+
+// Default log streams
+#include "Win32DebugLogStream.h"
+#include "StdOStreamLogStream.h"
+#include "FileLogStream.h"
+#include <assimp/StringUtils.h>
+
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/NullLogger.hpp>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/ai_assert.h>
+#include <iostream>
+#include <stdio.h>
+
+#ifndef ASSIMP_BUILD_SINGLETHREADED
+#   include <thread>
+#   include <mutex>
+    std::mutex loggerMutex;
+#endif
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+NullLogger DefaultLogger::s_pNullLogger;
+Logger *DefaultLogger::m_pLogger = &DefaultLogger::s_pNullLogger;
+
+static const unsigned int SeverityAll = Logger::Info | Logger::Err | Logger::Warn | Logger::Debugging;
+
+// ----------------------------------------------------------------------------------
+// Represents a log-stream + its error severity
+struct LogStreamInfo {
+    unsigned int  m_uiErrorSeverity;
+    LogStream    *m_pStream;
+
+    // Constructor
+    LogStreamInfo( unsigned int uiErrorSev, LogStream *pStream ) :
+        m_uiErrorSeverity( uiErrorSev ),
+        m_pStream( pStream ) {
+        // empty
+    }
+
+    // Destructor
+    ~LogStreamInfo() {
+        delete m_pStream;
+    }
+};
+
+// ----------------------------------------------------------------------------------
+// Construct a default log stream
+LogStream* LogStream::createDefaultStream(aiDefaultLogStream    streams,
+    const char* name /*= "AssimpLog.txt"*/,
+    IOSystem* io            /*= NULL*/)
+{
+    switch (streams)
+    {
+        // This is a platform-specific feature
+    case aiDefaultLogStream_DEBUGGER:
+#ifdef WIN32
+        return new Win32DebugLogStream();
+#else
+        return nullptr;
+#endif
+
+        // Platform-independent default streams
+    case aiDefaultLogStream_STDERR:
+        return new StdOStreamLogStream(std::cerr);
+    case aiDefaultLogStream_STDOUT:
+        return new StdOStreamLogStream(std::cout);
+    case aiDefaultLogStream_FILE:
+        return (name && *name ? new FileLogStream(name,io) : nullptr );
+    default:
+        // We don't know this default log stream, so raise an assertion
+        ai_assert(false);
+
+    };
+
+    // For compilers without dead code path detection
+    return NULL;
+}
+
+// ----------------------------------------------------------------------------------
+//  Creates the only singleton instance
+Logger *DefaultLogger::create(const char* name /*= "AssimpLog.txt"*/,
+    LogSeverity severity                       /*= NORMAL*/,
+    unsigned int defStreams                    /*= aiDefaultLogStream_DEBUGGER | aiDefaultLogStream_FILE*/,
+    IOSystem* io                               /*= NULL*/) {
+    // enter the mutex here to avoid concurrency problems
+#ifndef ASSIMP_BUILD_SINGLETHREADED
+    std::lock_guard<std::mutex> lock(loggerMutex);
+#endif
+
+    if ( m_pLogger && !isNullLogger() ) {
+        delete m_pLogger;
+    }
+
+    m_pLogger = new DefaultLogger( severity );
+
+    // Attach default log streams
+    // Stream the log to the MSVC debugger?
+    if ( defStreams & aiDefaultLogStream_DEBUGGER ) {
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_DEBUGGER ) );
+    }
+
+    // Stream the log to COUT?
+    if ( defStreams & aiDefaultLogStream_STDOUT ) {
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_STDOUT ) );
+    }
+
+    // Stream the log to CERR?
+    if ( defStreams & aiDefaultLogStream_STDERR ) {
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_STDERR ) );
+    }
+
+    // Stream the log to a file
+    if ( defStreams & aiDefaultLogStream_FILE && name && *name ) {
+        m_pLogger->attachStream( LogStream::createDefaultStream( aiDefaultLogStream_FILE, name, io ) );
+    }
+
+    return m_pLogger;
+}
+
+// ----------------------------------------------------------------------------------
+void Logger::debug(const char* message) {
+
+    // SECURITY FIX: otherwise it's easy to produce overruns since
+    // sometimes importers will include data from the input file
+    // (i.e. node names) in their messages.
+    if (strlen(message)>MAX_LOG_MESSAGE_LENGTH) {
+        return;
+    }
+    return OnDebug(message);
+}
+
+// ----------------------------------------------------------------------------------
+void Logger::info(const char* message)  {
+
+    // SECURITY FIX: see above
+    if (strlen(message)>MAX_LOG_MESSAGE_LENGTH) {
+        return;
+    }
+    return OnInfo(message);
+}
+
+// ----------------------------------------------------------------------------------
+void Logger::warn(const char* message)  {
+
+    // SECURITY FIX: see above
+    if (strlen(message)>MAX_LOG_MESSAGE_LENGTH) {
+        return;
+    }
+    return OnWarn(message);
+}
+
+// ----------------------------------------------------------------------------------
+void Logger::error(const char* message) {
+    // SECURITY FIX: see above
+    if (strlen(message)>MAX_LOG_MESSAGE_LENGTH) {
+        return;
+    }
+    return OnError(message);
+}
+
+// ----------------------------------------------------------------------------------
+void DefaultLogger::set( Logger *logger ) {
+    // enter the mutex here to avoid concurrency problems
+#ifndef ASSIMP_BUILD_SINGLETHREADED
+    std::lock_guard<std::mutex> lock(loggerMutex);
+#endif
+
+    if ( nullptr == logger ) {
+        logger = &s_pNullLogger;
+    }
+    if ( nullptr != m_pLogger && !isNullLogger() ) {
+        delete m_pLogger;
+    }
+
+    DefaultLogger::m_pLogger = logger;
+}
+
+// ----------------------------------------------------------------------------------
+bool DefaultLogger::isNullLogger() {
+    return m_pLogger == &s_pNullLogger;
+}
+
+// ----------------------------------------------------------------------------------
+Logger *DefaultLogger::get() {
+    return m_pLogger;
+}
+
+// ----------------------------------------------------------------------------------
+//  Kills the only instance
+void DefaultLogger::kill() {
+    // enter the mutex here to avoid concurrency problems
+#ifndef ASSIMP_BUILD_SINGLETHREADED
+    std::lock_guard<std::mutex> lock(loggerMutex);
+#endif
+
+	if ( m_pLogger == &s_pNullLogger ) {
+		return;
+	}
+    delete m_pLogger;
+    m_pLogger = &s_pNullLogger;
+}
+
+// ----------------------------------------------------------------------------------
+//  Debug message
+void DefaultLogger::OnDebug( const char* message ) {
+    if ( m_Severity == Logger::NORMAL ) {
+        return;
+    }
+
+	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
+	char msg[Size];
+	ai_snprintf(msg, Size, "Debug, T%u: %s", GetThreadID(), message);
+
+    WriteToStreams( msg, Logger::Debugging );
+}
+
+// ----------------------------------------------------------------------------------
+//  Logs an info
+void DefaultLogger::OnInfo( const char* message ){
+	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
+	char msg[Size];
+    ai_snprintf(msg, Size, "Info,  T%u: %s", GetThreadID(), message );
+
+    WriteToStreams( msg , Logger::Info );
+}
+
+// ----------------------------------------------------------------------------------
+//  Logs a warning
+void DefaultLogger::OnWarn( const char* message ) {
+	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
+	char msg[Size];
+	ai_snprintf(msg, Size, "Warn,  T%u: %s", GetThreadID(), message );
+
+    WriteToStreams( msg, Logger::Warn );
+}
+
+// ----------------------------------------------------------------------------------
+//  Logs an error
+void DefaultLogger::OnError( const char* message ) {
+	static const size_t Size = MAX_LOG_MESSAGE_LENGTH + 16;
+	char msg[ Size ];
+    ai_snprintf(msg, Size, "Error, T%u: %s", GetThreadID(), message );
+
+    WriteToStreams( msg, Logger::Err );
+}
+
+// ----------------------------------------------------------------------------------
+//  Will attach a new stream
+bool DefaultLogger::attachStream( LogStream *pStream, unsigned int severity ) {
+    if ( nullptr == pStream ) {
+        return false;
+    }
+
+    if (0 == severity)  {
+        severity = Logger::Info | Logger::Err | Logger::Warn | Logger::Debugging;
+    }
+
+    for ( StreamIt it = m_StreamArray.begin();
+        it != m_StreamArray.end();
+        ++it )
+    {
+        if ( (*it)->m_pStream == pStream ) {
+            (*it)->m_uiErrorSeverity |= severity;
+            return true;
+        }
+    }
+
+    LogStreamInfo *pInfo = new LogStreamInfo( severity, pStream );
+    m_StreamArray.push_back( pInfo );
+    return true;
+}
+
+// ----------------------------------------------------------------------------------
+//  Detach a stream
+bool DefaultLogger::detatchStream( LogStream *pStream, unsigned int severity ) {
+    if ( nullptr == pStream ) {
+        return false;
+    }
+
+    if (0 == severity)  {
+        severity = SeverityAll;
+    }
+
+    bool res( false );
+    for ( StreamIt it = m_StreamArray.begin(); it != m_StreamArray.end(); ++it ) {
+        if ( (*it)->m_pStream == pStream ) {
+            (*it)->m_uiErrorSeverity &= ~severity;
+            if ( (*it)->m_uiErrorSeverity == 0 ) {
+                // don't delete the underlying stream 'cause the caller gains ownership again
+                (**it).m_pStream = nullptr;
+                delete *it;
+                m_StreamArray.erase( it );
+                res = true;
+                break;
+            }
+            return true;
+        }
+    }
+    return res;
+}
+
+// ----------------------------------------------------------------------------------
+//  Constructor
+DefaultLogger::DefaultLogger(LogSeverity severity)
+    :   Logger  ( severity )
+    ,   noRepeatMsg (false)
+    ,   lastLen( 0 ) {
+    lastMsg[0] = '\0';
+}
+
+// ----------------------------------------------------------------------------------
+//  Destructor
+DefaultLogger::~DefaultLogger() {
+    for ( StreamIt it = m_StreamArray.begin(); it != m_StreamArray.end(); ++it ) {
+        // also frees the underlying stream, we are its owner.
+        delete *it;
+    }
+}
+
+// ----------------------------------------------------------------------------------
+//  Writes message to stream
+void DefaultLogger::WriteToStreams(const char *message, ErrorSeverity ErrorSev ) {
+    ai_assert(nullptr != message);
+
+    // Check whether this is a repeated message
+    if (! ::strncmp( message,lastMsg, lastLen-1))
+    {
+        if (!noRepeatMsg)
+        {
+            noRepeatMsg = true;
+            message = "Skipping one or more lines with the same contents\n";
+        }
+        else return;
+    }
+    else
+    {
+        // append a new-line character to the message to be printed
+        lastLen = ::strlen(message);
+        ::memcpy(lastMsg,message,lastLen+1);
+        ::strcat(lastMsg+lastLen,"\n");
+
+        message = lastMsg;
+        noRepeatMsg = false;
+        ++lastLen;
+    }
+    for ( ConstStreamIt it = m_StreamArray.begin();
+        it != m_StreamArray.end();
+        ++it)
+    {
+        if ( ErrorSev & (*it)->m_uiErrorSeverity )
+            (*it)->m_pStream->write( message);
+    }
+}
+
+// ----------------------------------------------------------------------------------
+//  Returns thread id, if not supported only a zero will be returned.
+unsigned int DefaultLogger::GetThreadID()
+{
+    // fixme: we can get this value via std::threads
+    // std::this_thread::get_id().hash() returns a (big) size_t, not sure if this is useful in this case.
+#ifdef WIN32
+    return (unsigned int)::GetCurrentThreadId();
+#else
+    return 0; // not supported
+#endif
+}
+
+// ----------------------------------------------------------------------------------
+
+} // !namespace Assimp
diff --git a/thirdparty/assimp/code/DefaultProgressHandler.h b/thirdparty/assimp/code/DefaultProgressHandler.h
new file mode 100644
index 0000000000..bd2cce00be
--- /dev/null
+++ b/thirdparty/assimp/code/DefaultProgressHandler.h
@@ -0,0 +1,65 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file ProgressHandler.hpp
+ *  @brief Abstract base class 'ProgressHandler'.
+ */
+#ifndef INCLUDED_AI_DEFAULTPROGRESSHANDLER_H
+#define INCLUDED_AI_DEFAULTPROGRESSHANDLER_H
+
+#include <assimp/ProgressHandler.hpp>
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------------
+/** @brief Internal default implementation of the #ProgressHandler interface. */
+class DefaultProgressHandler : public ProgressHandler    {
+
+    virtual bool Update(float /*percentage*/) {
+        return false;
+    }
+
+
+}; // !class DefaultProgressHandler
+} // Namespace Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/DropFaceNormalsProcess.cpp b/thirdparty/assimp/code/DropFaceNormalsProcess.cpp
new file mode 100644
index 0000000000..b11615bb82
--- /dev/null
+++ b/thirdparty/assimp/code/DropFaceNormalsProcess.cpp
@@ -0,0 +1,109 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to drop face
+* normals for all imported faces.
+*/
+
+
+#include "DropFaceNormalsProcess.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/Exceptional.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+DropFaceNormalsProcess::DropFaceNormalsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+DropFaceNormalsProcess::~DropFaceNormalsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool DropFaceNormalsProcess::IsActive( unsigned int pFlags) const {
+    return  (pFlags & aiProcess_DropNormals) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void DropFaceNormalsProcess::Execute( aiScene* pScene) {
+    ASSIMP_LOG_DEBUG("DropFaceNormalsProcess begin");
+
+    if (pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) {
+        throw DeadlyImportError("Post-processing order mismatch: expecting pseudo-indexed (\"verbose\") vertices here");
+    }
+
+    bool bHas = false;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++) {
+        bHas |= this->DropMeshFaceNormals( pScene->mMeshes[a]);
+    }
+    if (bHas)   {
+        ASSIMP_LOG_INFO("DropFaceNormalsProcess finished. "
+            "Face normals have been removed");
+    } else {
+        ASSIMP_LOG_DEBUG("DropFaceNormalsProcess finished. "
+            "No normals were present");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+bool DropFaceNormalsProcess::DropMeshFaceNormals (aiMesh* pMesh) {
+    if (NULL == pMesh->mNormals) {
+        return false;
+    }
+    
+    delete[] pMesh->mNormals;
+    pMesh->mNormals = nullptr;
+    return true;
+}
diff --git a/thirdparty/assimp/code/DropFaceNormalsProcess.h b/thirdparty/assimp/code/DropFaceNormalsProcess.h
new file mode 100644
index 0000000000..0d116663b7
--- /dev/null
+++ b/thirdparty/assimp/code/DropFaceNormalsProcess.h
@@ -0,0 +1,86 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to compute face normals for all loaded faces*/
+#ifndef AI_DROPFACENORMALPROCESS_H_INC
+#define AI_DROPFACENORMALPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+namespace Assimp
+{
+
+// ---------------------------------------------------------------------------
+/** The DropFaceNormalsProcess computes face normals for all faces of all meshes
+*/
+class ASSIMP_API_WINONLY DropFaceNormalsProcess : public BaseProcess
+{
+public:
+
+    DropFaceNormalsProcess();
+    ~DropFaceNormalsProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+    * @param pFlags The processing flags the importer was called with. A bitwise
+    *   combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+
+private:
+    bool DropMeshFaceNormals(aiMesh* pcMesh);
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_DROPFACENORMALPROCESS_H_INC
diff --git a/thirdparty/assimp/code/EmbedTexturesProcess.cpp b/thirdparty/assimp/code/EmbedTexturesProcess.cpp
new file mode 100644
index 0000000000..739382a057
--- /dev/null
+++ b/thirdparty/assimp/code/EmbedTexturesProcess.cpp
@@ -0,0 +1,152 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#include "EmbedTexturesProcess.h"
+#include <assimp/ParsingUtils.h>
+#include "ProcessHelper.h"
+
+#include <fstream>
+
+using namespace Assimp;
+
+EmbedTexturesProcess::EmbedTexturesProcess()
+: BaseProcess() {
+}
+
+EmbedTexturesProcess::~EmbedTexturesProcess() {
+}
+
+bool EmbedTexturesProcess::IsActive(unsigned int pFlags) const {
+    return (pFlags & aiProcess_EmbedTextures) != 0;
+}
+
+void EmbedTexturesProcess::SetupProperties(const Importer* pImp) {
+    mRootPath = pImp->GetPropertyString("sourceFilePath");
+    mRootPath = mRootPath.substr(0, mRootPath.find_last_of("\\/") + 1u);
+}
+
+void EmbedTexturesProcess::Execute(aiScene* pScene) {
+    if (pScene == nullptr || pScene->mRootNode == nullptr) return;
+
+    aiString path;
+
+    uint32_t embeddedTexturesCount = 0u;
+
+    for (auto matId = 0u; matId < pScene->mNumMaterials; ++matId) {
+        auto material = pScene->mMaterials[matId];
+
+        for (auto ttId = 1u; ttId < AI_TEXTURE_TYPE_MAX; ++ttId) {
+            auto tt = static_cast<aiTextureType>(ttId);
+            auto texturesCount = material->GetTextureCount(tt);
+
+            for (auto texId = 0u; texId < texturesCount; ++texId) {
+                material->GetTexture(tt, texId, &path);
+                if (path.data[0] == '*') continue; // Already embedded
+
+                // Indeed embed
+                if (addTexture(pScene, path.data)) {
+                    auto embeddedTextureId = pScene->mNumTextures - 1u;
+                    ::ai_snprintf(path.data, 1024, "*%u", embeddedTextureId);
+                    material->AddProperty(&path, AI_MATKEY_TEXTURE(tt, texId));
+                    embeddedTexturesCount++;
+                }
+            }
+        }
+    }
+
+    ASSIMP_LOG_INFO_F("EmbedTexturesProcess finished. Embedded ", embeddedTexturesCount, " textures." );
+}
+
+bool EmbedTexturesProcess::addTexture(aiScene* pScene, std::string path) const {
+    std::streampos imageSize = 0;
+    std::string    imagePath = path;
+
+    // Test path directly
+    std::ifstream file(imagePath, std::ios::binary | std::ios::ate);
+    if ((imageSize = file.tellg()) == std::streampos(-1)) {
+        ASSIMP_LOG_WARN_F("EmbedTexturesProcess: Cannot find image: ", imagePath, ". Will try to find it in root folder.");
+
+        // Test path in root path
+        imagePath = mRootPath + path;
+        file.open(imagePath, std::ios::binary | std::ios::ate);
+        if ((imageSize = file.tellg()) == std::streampos(-1)) {
+            // Test path basename in root path
+            imagePath = mRootPath + path.substr(path.find_last_of("\\/") + 1u);
+            file.open(imagePath, std::ios::binary | std::ios::ate);
+            if ((imageSize = file.tellg()) == std::streampos(-1)) {
+                ASSIMP_LOG_ERROR_F("EmbedTexturesProcess: Unable to embed texture: ", path, ".");
+                return false;
+            }
+        }
+    }
+
+    aiTexel* imageContent = new aiTexel[ 1ul + static_cast<unsigned long>( imageSize ) / sizeof(aiTexel)];
+    file.seekg(0, std::ios::beg);
+    file.read(reinterpret_cast<char*>(imageContent), imageSize);
+
+    // Enlarging the textures table
+    unsigned int textureId = pScene->mNumTextures++;
+    auto oldTextures = pScene->mTextures;
+    pScene->mTextures = new aiTexture*[pScene->mNumTextures];
+    ::memmove(pScene->mTextures, oldTextures, sizeof(aiTexture*) * (pScene->mNumTextures - 1u));
+
+    // Add the new texture
+    auto pTexture = new aiTexture;
+    pTexture->mHeight = 0; // Means that this is still compressed
+    pTexture->mWidth = static_cast<uint32_t>(imageSize);
+    pTexture->pcData = imageContent;
+
+    auto extension = path.substr(path.find_last_of('.') + 1u);
+    std::transform(extension.begin(), extension.end(), extension.begin(), ::tolower);
+    if (extension == "jpeg") {
+        extension = "jpg";
+    }
+
+    size_t len = extension.size();
+    if (len > HINTMAXTEXTURELEN -1 ) {
+        len = HINTMAXTEXTURELEN - 1;
+    }
+    ::strncpy(pTexture->achFormatHint, extension.c_str(), len);
+    pScene->mTextures[textureId] = pTexture;
+
+    return true;
+}
diff --git a/thirdparty/assimp/code/EmbedTexturesProcess.h b/thirdparty/assimp/code/EmbedTexturesProcess.h
new file mode 100644
index 0000000000..cdf40bef74
--- /dev/null
+++ b/thirdparty/assimp/code/EmbedTexturesProcess.h
@@ -0,0 +1,85 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#pragma once
+
+#include "BaseProcess.h"
+
+#include <string>
+
+struct aiNode;
+
+namespace Assimp {
+
+/**
+ *  Force embedding of textures (using the path = "*1" convention).
+ *  If a texture's file does not exist at the specified path
+ *  (due, for instance, to an absolute path generated on another system),
+ *  it will check if a file with the same name exists at the root folder
+ *  of the imported model. And if so, it uses that.
+ */
+class ASSIMP_API EmbedTexturesProcess : public BaseProcess {
+public:
+    /// The default class constructor.
+    EmbedTexturesProcess();
+
+    /// The class destructor.
+    virtual ~EmbedTexturesProcess();
+
+    /// Overwritten, @see BaseProcess
+    virtual bool IsActive(unsigned int pFlags) const;
+
+    /// Overwritten, @see BaseProcess
+    virtual void SetupProperties(const Importer* pImp);
+
+    /// Overwritten, @see BaseProcess
+    virtual void Execute(aiScene* pScene);
+
+private:
+    // Resolve the path and add the file content to the scene as a texture.
+    bool addTexture(aiScene* pScene, std::string path) const;
+
+private:
+    std::string mRootPath;
+};
+
+} // namespace Assimp
diff --git a/thirdparty/assimp/code/Exporter.cpp b/thirdparty/assimp/code/Exporter.cpp
new file mode 100644
index 0000000000..8848e87f5b
--- /dev/null
+++ b/thirdparty/assimp/code/Exporter.cpp
@@ -0,0 +1,648 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Exporter.cpp
+
+Assimp export interface. While it's public interface bears many similarities
+to the import interface (in fact, it is largely symmetric), the internal
+implementations differs a lot. Exporters are considered stateless and are
+simple callbacks which we maintain in a global list along with their
+description strings.
+
+Here we implement only the C++ interface (Assimp::Exporter).
+*/
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+#include <assimp/BlobIOSystem.h>
+#include <assimp/SceneCombiner.h>
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/Exporter.hpp>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+
+#include "DefaultProgressHandler.h"
+#include "BaseProcess.h"
+#include "JoinVerticesProcess.h"
+#include "MakeVerboseFormat.h"
+#include "ConvertToLHProcess.h"
+#include "PretransformVertices.h"
+#include <assimp/Exceptional.h>
+#include "ScenePrivate.h"
+
+#include <memory>
+
+namespace Assimp {
+
+// PostStepRegistry.cpp
+void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out);
+
+// ------------------------------------------------------------------------------------------------
+// Exporter worker function prototypes. Should not be necessary to #ifndef them, it's just a prototype
+// do not use const, because some exporter need to convert the scene temporary
+void ExportSceneCollada(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneXFile(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneStep(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneObj(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneObjNoMtl(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneSTL(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneSTLBinary(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportScenePly(const char*,IOSystem*, const aiScene*, const ExportProperties*);
+void ExportScenePlyBinary(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportScene3DS(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneGLTF(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneGLB(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneGLTF2(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneGLB2(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneAssbin(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneAssxml(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneX3D(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneFBX(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportSceneFBXA(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+void ExportScene3MF( const char*, IOSystem*, const aiScene*, const ExportProperties* );
+
+// ------------------------------------------------------------------------------------------------
+// global array of all export formats which Assimp supports in its current build
+Exporter::ExportFormatEntry gExporters[] =
+{
+#ifndef ASSIMP_BUILD_NO_COLLADA_EXPORTER
+    Exporter::ExportFormatEntry( "collada", "COLLADA - Digital Asset Exchange Schema", "dae", &ExportSceneCollada ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_X_EXPORTER
+    Exporter::ExportFormatEntry( "x", "X Files", "x", &ExportSceneXFile,
+        aiProcess_MakeLeftHanded | aiProcess_FlipWindingOrder | aiProcess_FlipUVs ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_STEP_EXPORTER
+    Exporter::ExportFormatEntry( "stp", "Step Files", "stp", &ExportSceneStep, 0 ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_OBJ_EXPORTER
+    Exporter::ExportFormatEntry( "obj", "Wavefront OBJ format", "obj", &ExportSceneObj,
+        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */ ),
+    Exporter::ExportFormatEntry( "objnomtl", "Wavefront OBJ format without material file", "obj", &ExportSceneObjNoMtl,
+        aiProcess_GenSmoothNormals /*| aiProcess_PreTransformVertices */ ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_STL_EXPORTER
+    Exporter::ExportFormatEntry( "stl", "Stereolithography", "stl" , &ExportSceneSTL,
+        aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices
+    ),
+    Exporter::ExportFormatEntry( "stlb", "Stereolithography (binary)", "stl" , &ExportSceneSTLBinary,
+        aiProcess_Triangulate | aiProcess_GenNormals | aiProcess_PreTransformVertices
+    ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_PLY_EXPORTER
+    Exporter::ExportFormatEntry( "ply", "Stanford Polygon Library", "ply" , &ExportScenePly,
+        aiProcess_PreTransformVertices
+    ),
+    Exporter::ExportFormatEntry( "plyb", "Stanford Polygon Library (binary)", "ply", &ExportScenePlyBinary,
+        aiProcess_PreTransformVertices
+    ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_3DS_EXPORTER
+    Exporter::ExportFormatEntry( "3ds", "Autodesk 3DS (legacy)", "3ds" , &ExportScene3DS,
+        aiProcess_Triangulate | aiProcess_SortByPType | aiProcess_JoinIdenticalVertices ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_GLTF_EXPORTER
+    Exporter::ExportFormatEntry( "gltf2", "GL Transmission Format v. 2", "gltf", &ExportSceneGLTF2,
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+    Exporter::ExportFormatEntry( "glb2", "GL Transmission Format v. 2 (binary)", "glb", &ExportSceneGLB2,
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+    Exporter::ExportFormatEntry( "gltf", "GL Transmission Format", "gltf", &ExportSceneGLTF,
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+    Exporter::ExportFormatEntry( "glb", "GL Transmission Format (binary)", "glb", &ExportSceneGLB,
+        aiProcess_JoinIdenticalVertices | aiProcess_Triangulate | aiProcess_SortByPType ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_ASSBIN_EXPORTER
+    Exporter::ExportFormatEntry( "assbin", "Assimp Binary", "assbin" , &ExportSceneAssbin, 0 ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_ASSXML_EXPORTER
+    Exporter::ExportFormatEntry( "assxml", "Assxml Document", "assxml" , &ExportSceneAssxml, 0 ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_X3D_EXPORTER
+    Exporter::ExportFormatEntry( "x3d", "Extensible 3D", "x3d" , &ExportSceneX3D, 0 ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+    Exporter::ExportFormatEntry( "fbx", "Autodesk FBX (binary)", "fbx", &ExportSceneFBX, 0 ),
+    Exporter::ExportFormatEntry( "fbxa", "Autodesk FBX (ascii)", "fbx", &ExportSceneFBXA, 0 ),
+#endif
+
+#ifndef ASSIMP_BUILD_NO_3MF_EXPORTER
+    Exporter::ExportFormatEntry( "3mf", "The 3MF-File-Format", "3mf", &ExportScene3MF, 0 )
+#endif
+};
+
+#define ASSIMP_NUM_EXPORTERS (sizeof(gExporters)/sizeof(gExporters[0]))
+
+
+class ExporterPimpl {
+public:
+    ExporterPimpl()
+    : blob()
+    , mIOSystem(new Assimp::DefaultIOSystem())
+    , mIsDefaultIOHandler(true)
+    , mProgressHandler( nullptr )
+    , mIsDefaultProgressHandler( true )
+    , mPostProcessingSteps()
+    , mError()
+    , mExporters() {
+        GetPostProcessingStepInstanceList(mPostProcessingSteps);
+
+        // grab all built-in exporters
+        if ( 0 != ( ASSIMP_NUM_EXPORTERS ) ) {
+            mExporters.resize( ASSIMP_NUM_EXPORTERS );
+            std::copy( gExporters, gExporters + ASSIMP_NUM_EXPORTERS, mExporters.begin() );
+        }
+    }
+
+    ~ExporterPimpl() {
+        delete blob;
+
+        // Delete all post-processing plug-ins
+        for( unsigned int a = 0; a < mPostProcessingSteps.size(); a++) {
+            delete mPostProcessingSteps[a];
+        }
+        delete mProgressHandler;
+    }
+
+public:
+    aiExportDataBlob* blob;
+    std::shared_ptr< Assimp::IOSystem > mIOSystem;
+    bool mIsDefaultIOHandler;
+
+    /** The progress handler */
+    ProgressHandler *mProgressHandler;
+    bool mIsDefaultProgressHandler;
+
+    /** Post processing steps we can apply at the imported data. */
+    std::vector< BaseProcess* > mPostProcessingSteps;
+
+    /** Last fatal export error */
+    std::string mError;
+
+    /** Exporters, this includes those registered using #Assimp::Exporter::RegisterExporter */
+    std::vector<Exporter::ExportFormatEntry> mExporters;
+};
+
+} // end of namespace Assimp
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+Exporter :: Exporter()
+: pimpl(new ExporterPimpl()) {
+    pimpl->mProgressHandler = new DefaultProgressHandler();
+}
+
+// ------------------------------------------------------------------------------------------------
+Exporter::~Exporter() {
+    FreeBlob();
+    delete pimpl;
+}
+
+// ------------------------------------------------------------------------------------------------
+void Exporter::SetIOHandler( IOSystem* pIOHandler) {
+    pimpl->mIsDefaultIOHandler = !pIOHandler;
+    pimpl->mIOSystem.reset(pIOHandler);
+}
+
+// ------------------------------------------------------------------------------------------------
+IOSystem* Exporter::GetIOHandler() const {
+    return pimpl->mIOSystem.get();
+}
+
+// ------------------------------------------------------------------------------------------------
+bool Exporter::IsDefaultIOHandler() const {
+    return pimpl->mIsDefaultIOHandler;
+}
+
+// ------------------------------------------------------------------------------------------------
+void Exporter::SetProgressHandler(ProgressHandler* pHandler) {
+    ai_assert(nullptr != pimpl);
+
+    if ( nullptr == pHandler) {
+        // Release pointer in the possession of the caller
+        pimpl->mProgressHandler = new DefaultProgressHandler();
+        pimpl->mIsDefaultProgressHandler = true;
+        return;
+    }
+
+    if (pimpl->mProgressHandler == pHandler) {
+        return;
+    }
+
+    delete pimpl->mProgressHandler;
+    pimpl->mProgressHandler = pHandler;
+    pimpl->mIsDefaultProgressHandler = false;
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiExportDataBlob* Exporter::ExportToBlob( const aiScene* pScene, const char* pFormatId,
+                                                unsigned int, const ExportProperties* /*pProperties*/ ) {
+    if (pimpl->blob) {
+        delete pimpl->blob;
+        pimpl->blob = nullptr;
+    }
+
+    std::shared_ptr<IOSystem> old = pimpl->mIOSystem;
+    BlobIOSystem* blobio = new BlobIOSystem();
+    pimpl->mIOSystem = std::shared_ptr<IOSystem>( blobio );
+
+    if (AI_SUCCESS != Export(pScene,pFormatId,blobio->GetMagicFileName())) {
+        pimpl->mIOSystem = old;
+        return nullptr;
+    }
+
+    pimpl->blob = blobio->GetBlobChain();
+    pimpl->mIOSystem = old;
+
+    return pimpl->blob;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool IsVerboseFormat(const aiMesh* mesh) {
+    // avoid slow vector<bool> specialization
+    std::vector<unsigned int> seen(mesh->mNumVertices,0);
+    for(unsigned int i = 0; i < mesh->mNumFaces; ++i) {
+        const aiFace& f = mesh->mFaces[i];
+        for(unsigned int j = 0; j < f.mNumIndices; ++j) {
+            if(++seen[f.mIndices[j]] == 2) {
+                // found a duplicate index
+                return false;
+            }
+        }
+    }
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool IsVerboseFormat(const aiScene* pScene) {
+    for(unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        if(!IsVerboseFormat(pScene->mMeshes[i])) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiReturn Exporter::Export( const aiScene* pScene, const char* pFormatId, const char* pPath,
+        unsigned int pPreprocessing, const ExportProperties* pProperties) {
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+
+    // when they create scenes from scratch, users will likely create them not in verbose
+    // format. They will likely not be aware that there is a flag in the scene to indicate
+    // this, however. To avoid surprises and bug reports, we check for duplicates in
+    // meshes upfront.
+    const bool is_verbose_format = !(pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) || IsVerboseFormat(pScene);
+
+    pimpl->mProgressHandler->UpdateFileWrite(0, 4);
+
+    pimpl->mError = "";
+    for (size_t i = 0; i < pimpl->mExporters.size(); ++i) {
+        const Exporter::ExportFormatEntry& exp = pimpl->mExporters[i];
+        if (!strcmp(exp.mDescription.id,pFormatId)) {
+            try {
+                // Always create a full copy of the scene. We might optimize this one day,
+                // but for now it is the most pragmatic way.
+                aiScene* scenecopy_tmp = nullptr;
+                SceneCombiner::CopyScene(&scenecopy_tmp,pScene);
+
+                pimpl->mProgressHandler->UpdateFileWrite(1, 4);
+
+                std::unique_ptr<aiScene> scenecopy(scenecopy_tmp);
+                const ScenePrivateData* const priv = ScenePriv(pScene);
+
+                // steps that are not idempotent, i.e. we might need to run them again, usually to get back to the
+                // original state before the step was applied first. When checking which steps we don't need
+                // to run, those are excluded.
+                const unsigned int nonIdempotentSteps = aiProcess_FlipWindingOrder | aiProcess_FlipUVs | aiProcess_MakeLeftHanded;
+
+                // Erase all pp steps that were already applied to this scene
+                const unsigned int pp = (exp.mEnforcePP | pPreprocessing) & ~(priv && !priv->mIsCopy
+                    ? (priv->mPPStepsApplied & ~nonIdempotentSteps)
+                    : 0u);
+
+                // If no extra post-processing was specified, and we obtained this scene from an
+                // Assimp importer, apply the reverse steps automatically.
+                // TODO: either drop this, or document it. Otherwise it is just a bad surprise.
+                //if (!pPreprocessing && priv) {
+                //  pp |= (nonIdempotentSteps & priv->mPPStepsApplied);
+                //}
+
+                // If the input scene is not in verbose format, but there is at least post-processing step that relies on it,
+                // we need to run the MakeVerboseFormat step first.
+                bool must_join_again = false;
+                if (!is_verbose_format) {
+                    bool verbosify = false;
+                    for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++) {
+                        BaseProcess* const p = pimpl->mPostProcessingSteps[a];
+
+                        if (p->IsActive(pp) && p->RequireVerboseFormat()) {
+                            verbosify = true;
+                            break;
+                        }
+                    }
+
+                    if (verbosify || (exp.mEnforcePP & aiProcess_JoinIdenticalVertices)) {
+                        ASSIMP_LOG_DEBUG("export: Scene data not in verbose format, applying MakeVerboseFormat step first");
+
+                        MakeVerboseFormatProcess proc;
+                        proc.Execute(scenecopy.get());
+
+                        if(!(exp.mEnforcePP & aiProcess_JoinIdenticalVertices)) {
+                            must_join_again = true;
+                        }
+                    }
+                }
+
+                pimpl->mProgressHandler->UpdateFileWrite(2, 4);
+
+                if (pp) {
+                    // the three 'conversion' steps need to be executed first because all other steps rely on the standard data layout
+                    {
+                        FlipWindingOrderProcess step;
+                        if (step.IsActive(pp)) {
+                            step.Execute(scenecopy.get());
+                        }
+                    }
+
+                    {
+                        FlipUVsProcess step;
+                        if (step.IsActive(pp)) {
+                            step.Execute(scenecopy.get());
+                        }
+                    }
+
+                    {
+                        MakeLeftHandedProcess step;
+                        if (step.IsActive(pp)) {
+                            step.Execute(scenecopy.get());
+                        }
+                    }
+
+                    bool exportPointCloud(false);
+                    if (nullptr != pProperties) {
+                        exportPointCloud = pProperties->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
+                    }
+
+                    // dispatch other processes
+                    for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++) {
+                        BaseProcess* const p = pimpl->mPostProcessingSteps[a];
+
+                        if (p->IsActive(pp)
+                            && !dynamic_cast<FlipUVsProcess*>(p)
+                            && !dynamic_cast<FlipWindingOrderProcess*>(p)
+                            && !dynamic_cast<MakeLeftHandedProcess*>(p)) {
+                            if (dynamic_cast<PretransformVertices*>(p) && exportPointCloud) {
+                                continue;
+                            }
+                            p->Execute(scenecopy.get());
+                        }
+                    }
+                    ScenePrivateData* const privOut = ScenePriv(scenecopy.get());
+                    ai_assert(nullptr != privOut);
+
+                    privOut->mPPStepsApplied |= pp;
+                }
+
+                pimpl->mProgressHandler->UpdateFileWrite(3, 4);
+
+                if(must_join_again) {
+                    JoinVerticesProcess proc;
+                    proc.Execute(scenecopy.get());
+                }
+
+                ExportProperties emptyProperties;  // Never pass NULL ExportProperties so Exporters don't have to worry.
+                exp.mExportFunction(pPath,pimpl->mIOSystem.get(),scenecopy.get(), pProperties ? pProperties : &emptyProperties);
+
+                pimpl->mProgressHandler->UpdateFileWrite(4, 4);
+            } catch (DeadlyExportError& err) {
+                pimpl->mError = err.what();
+                return AI_FAILURE;
+            }
+            return AI_SUCCESS;
+        }
+    }
+
+    pimpl->mError = std::string("Found no exporter to handle this file format: ") + pFormatId;
+    ASSIMP_END_EXCEPTION_REGION(aiReturn);
+
+    return AI_FAILURE;
+}
+
+// ------------------------------------------------------------------------------------------------
+const char* Exporter::GetErrorString() const {
+    return pimpl->mError.c_str();
+}
+
+// ------------------------------------------------------------------------------------------------
+void Exporter::FreeBlob() {
+    delete pimpl->blob;
+    pimpl->blob = nullptr;
+
+    pimpl->mError = "";
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiExportDataBlob* Exporter::GetBlob() const {
+    return pimpl->blob;
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiExportDataBlob* Exporter::GetOrphanedBlob() const {
+    const aiExportDataBlob* tmp = pimpl->blob;
+    pimpl->blob = nullptr;
+    return tmp;
+}
+
+// ------------------------------------------------------------------------------------------------
+size_t Exporter::GetExportFormatCount() const {
+    return pimpl->mExporters.size();
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiExportFormatDesc* Exporter::GetExportFormatDescription( size_t index ) const {
+    if (index >= GetExportFormatCount()) {
+        return nullptr;
+    }
+
+    // Return from static storage if the requested index is built-in.
+    if (index < sizeof(gExporters) / sizeof(gExporters[0])) {
+        return &gExporters[index].mDescription;
+    }
+
+    return &pimpl->mExporters[index].mDescription;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiReturn Exporter::RegisterExporter(const ExportFormatEntry& desc) {
+    for(const ExportFormatEntry& e : pimpl->mExporters) {
+        if (!strcmp(e.mDescription.id,desc.mDescription.id)) {
+            return aiReturn_FAILURE;
+        }
+    }
+
+    pimpl->mExporters.push_back(desc);
+    return aiReturn_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+void Exporter::UnregisterExporter(const char* id) {
+    for(std::vector<ExportFormatEntry>::iterator it = pimpl->mExporters.begin();
+            it != pimpl->mExporters.end(); ++it) {
+        if (!strcmp((*it).mDescription.id,id)) {
+            pimpl->mExporters.erase(it);
+            break;
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+ExportProperties::ExportProperties() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+ExportProperties::ExportProperties(const ExportProperties &other)
+: mIntProperties(other.mIntProperties)
+, mFloatProperties(other.mFloatProperties)
+, mStringProperties(other.mStringProperties)
+, mMatrixProperties(other.mMatrixProperties) {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool ExportProperties::SetPropertyInteger(const char* szName, int iValue) {
+    return SetGenericProperty<int>(mIntProperties, szName,iValue);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool ExportProperties::SetPropertyFloat(const char* szName, ai_real iValue) {
+    return SetGenericProperty<ai_real>(mFloatProperties, szName,iValue);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool ExportProperties::SetPropertyString(const char* szName, const std::string& value) {
+    return SetGenericProperty<std::string>(mStringProperties, szName,value);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool ExportProperties::SetPropertyMatrix(const char* szName, const aiMatrix4x4& value) {
+    return SetGenericProperty<aiMatrix4x4>(mMatrixProperties, szName,value);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+int ExportProperties::GetPropertyInteger(const char* szName, int iErrorReturn /*= 0xffffffff*/) const {
+    return GetGenericProperty<int>(mIntProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+ai_real ExportProperties::GetPropertyFloat(const char* szName, ai_real iErrorReturn /*= 10e10*/) const {
+    return GetGenericProperty<ai_real>(mFloatProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+const std::string ExportProperties::GetPropertyString(const char* szName,
+        const std::string& iErrorReturn /*= ""*/) const {
+    return GetGenericProperty<std::string>(mStringProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Has a configuration property
+const aiMatrix4x4 ExportProperties::GetPropertyMatrix(const char* szName,
+        const aiMatrix4x4& iErrorReturn /*= aiMatrix4x4()*/) const {
+    return GetGenericProperty<aiMatrix4x4>(mMatrixProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Has a configuration property
+bool ExportProperties::HasPropertyInteger(const char* szName) const {
+    return HasGenericProperty<int>(mIntProperties, szName);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Has a configuration property
+bool ExportProperties::HasPropertyBool(const char* szName) const {
+    return HasGenericProperty<int>(mIntProperties, szName);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Has a configuration property
+bool ExportProperties::HasPropertyFloat(const char* szName) const {
+    return HasGenericProperty<ai_real>(mFloatProperties, szName);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Has a configuration property
+bool ExportProperties::HasPropertyString(const char* szName) const {
+    return HasGenericProperty<std::string>(mStringProperties, szName);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Has a configuration property
+bool ExportProperties::HasPropertyMatrix(const char* szName) const {
+    return HasGenericProperty<aiMatrix4x4>(mMatrixProperties, szName);
+}
+
+
+#endif // !ASSIMP_BUILD_NO_EXPORT
diff --git a/thirdparty/assimp/code/FBXAnimation.cpp b/thirdparty/assimp/code/FBXAnimation.cpp
new file mode 100644
index 0000000000..874914431b
--- /dev/null
+++ b/thirdparty/assimp/code/FBXAnimation.cpp
@@ -0,0 +1,305 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXAnimation.cpp
+ *  @brief Assimp::FBX::AnimationCurve, Assimp::FBX::AnimationCurveNode,
+ *         Assimp::FBX::AnimationLayer, Assimp::FBX::AnimationStack
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXParser.h"
+#include "FBXDocument.h"
+#include "FBXImporter.h"
+#include "FBXDocumentUtil.h"
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurve::AnimationCurve(uint64_t id, const Element& element, const std::string& name, const Document& /*doc*/)
+: Object(id, element, name)
+{
+    const Scope& sc = GetRequiredScope(element);
+    const Element& KeyTime = GetRequiredElement(sc,"KeyTime");
+    const Element& KeyValueFloat = GetRequiredElement(sc,"KeyValueFloat");
+
+    ParseVectorDataArray(keys, KeyTime);
+    ParseVectorDataArray(values, KeyValueFloat);
+
+    if(keys.size() != values.size()) {
+        DOMError("the number of key times does not match the number of keyframe values",&KeyTime);
+    }
+
+    // check if the key times are well-ordered
+    if(!std::equal(keys.begin(), keys.end() - 1, keys.begin() + 1, std::less<KeyTimeList::value_type>())) {
+        DOMError("the keyframes are not in ascending order",&KeyTime);
+    }
+
+    const Element* KeyAttrDataFloat = sc["KeyAttrDataFloat"];
+    if(KeyAttrDataFloat) {
+        ParseVectorDataArray(attributes, *KeyAttrDataFloat);
+    }
+
+    const Element* KeyAttrFlags = sc["KeyAttrFlags"];
+    if(KeyAttrFlags) {
+        ParseVectorDataArray(flags, *KeyAttrFlags);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurve::~AnimationCurve()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurveNode::AnimationCurveNode(uint64_t id, const Element& element, const std::string& name, 
+        const Document& doc, const char* const * target_prop_whitelist /*= NULL*/, 
+        size_t whitelist_size /*= 0*/)
+: Object(id, element, name)
+, target()
+, doc(doc)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    // find target node
+    const char* whitelist[] = {"Model","NodeAttribute","Deformer"};
+    const std::vector<const Connection*>& conns = doc.GetConnectionsBySourceSequenced(ID(),whitelist,3);
+
+    for(const Connection* con : conns) {
+
+        // link should go for a property
+        if (!con->PropertyName().length()) {
+            continue;
+        }
+
+        if(target_prop_whitelist) {
+            const char* const s = con->PropertyName().c_str();
+            bool ok = false;
+            for (size_t i = 0; i < whitelist_size; ++i) {
+                if (!strcmp(s, target_prop_whitelist[i])) {
+                    ok = true;
+                    break;
+                }
+            }
+
+            if (!ok) {
+                throw std::range_error("AnimationCurveNode target property is not in whitelist");
+            }
+        }
+
+        const Object* const ob = con->DestinationObject();
+        if(!ob) {
+            DOMWarning("failed to read destination object for AnimationCurveNode->Model link, ignoring",&element);
+            continue;
+        }
+
+        // XXX support constraints as DOM class
+        //ai_assert(dynamic_cast<const Model*>(ob) || dynamic_cast<const NodeAttribute*>(ob));
+        target = ob;
+        if(!target) {
+            continue;
+        }
+
+        prop = con->PropertyName();
+        break;
+    }
+
+    if(!target) {
+        DOMWarning("failed to resolve target Model/NodeAttribute/Constraint for AnimationCurveNode",&element);
+    }
+
+    props = GetPropertyTable(doc,"AnimationCurveNode.FbxAnimCurveNode",element,sc,false);
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurveNode::~AnimationCurveNode()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+const AnimationCurveMap& AnimationCurveNode::Curves() const
+{
+    if ( curves.empty() ) {
+        // resolve attached animation curves
+        const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"AnimationCurve");
+
+        for(const Connection* con : conns) {
+
+            // link should go for a property
+            if (!con->PropertyName().length()) {
+                continue;
+            }
+
+            const Object* const ob = con->SourceObject();
+            if(!ob) {
+                DOMWarning("failed to read source object for AnimationCurve->AnimationCurveNode link, ignoring",&element);
+                continue;
+            }
+
+            const AnimationCurve* const anim = dynamic_cast<const AnimationCurve*>(ob);
+            if(!anim) {
+                DOMWarning("source object for ->AnimationCurveNode link is not an AnimationCurve",&element);
+                continue;
+            }
+
+            curves[con->PropertyName()] = anim;
+        }
+    }
+
+    return curves;
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationLayer::AnimationLayer(uint64_t id, const Element& element, const std::string& name, const Document& doc)
+: Object(id, element, name)
+, doc(doc)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    // note: the props table here bears little importance and is usually absent
+    props = GetPropertyTable(doc,"AnimationLayer.FbxAnimLayer",element,sc, true);
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationLayer::~AnimationLayer()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurveNodeList AnimationLayer::Nodes(const char* const * target_prop_whitelist /*= NULL*/,
+    size_t whitelist_size /*= 0*/) const
+{
+    AnimationCurveNodeList nodes;
+
+    // resolve attached animation nodes
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"AnimationCurveNode");
+    nodes.reserve(conns.size());
+
+    for(const Connection* con : conns) {
+
+        // link should not go to a property
+        if (con->PropertyName().length()) {
+            continue;
+        }
+
+        const Object* const ob = con->SourceObject();
+        if(!ob) {
+            DOMWarning("failed to read source object for AnimationCurveNode->AnimationLayer link, ignoring",&element);
+            continue;
+        }
+
+        const AnimationCurveNode* const anim = dynamic_cast<const AnimationCurveNode*>(ob);
+        if(!anim) {
+            DOMWarning("source object for ->AnimationLayer link is not an AnimationCurveNode",&element);
+            continue;
+        }
+
+        if(target_prop_whitelist) {
+            const char* s = anim->TargetProperty().c_str();
+            bool ok = false;
+            for (size_t i = 0; i < whitelist_size; ++i) {
+                if (!strcmp(s, target_prop_whitelist[i])) {
+                    ok = true;
+                    break;
+                }
+            }
+            if(!ok) {
+                continue;
+            }
+        }
+        nodes.push_back(anim);
+    }
+
+    return nodes; // pray for NRVO
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationStack::AnimationStack(uint64_t id, const Element& element, const std::string& name, const Document& doc)
+: Object(id, element, name)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    // note: we don't currently use any of these properties so we shouldn't bother if it is missing
+    props = GetPropertyTable(doc,"AnimationStack.FbxAnimStack",element,sc, true);
+
+    // resolve attached animation layers
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"AnimationLayer");
+    layers.reserve(conns.size());
+
+    for(const Connection* con : conns) {
+
+        // link should not go to a property
+        if (con->PropertyName().length()) {
+            continue;
+        }
+
+        const Object* const ob = con->SourceObject();
+        if(!ob) {
+            DOMWarning("failed to read source object for AnimationLayer->AnimationStack link, ignoring",&element);
+            continue;
+        }
+
+        const AnimationLayer* const anim = dynamic_cast<const AnimationLayer*>(ob);
+        if(!anim) {
+            DOMWarning("source object for ->AnimationStack link is not an AnimationLayer",&element);
+            continue;
+        }
+        layers.push_back(anim);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationStack::~AnimationStack()
+{
+    // empty
+}
+
+} //!FBX
+} //!Assimp
+
+#endif // ASSIMP_BUILD_NO_FBX_IMPORTER
diff --git a/thirdparty/assimp/code/FBXBinaryTokenizer.cpp b/thirdparty/assimp/code/FBXBinaryTokenizer.cpp
new file mode 100644
index 0000000000..7138df4315
--- /dev/null
+++ b/thirdparty/assimp/code/FBXBinaryTokenizer.cpp
@@ -0,0 +1,466 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+/** @file  FBXBinaryTokenizer.cpp
+ *  @brief Implementation of a fake lexer for binary fbx files -
+ *    we emit tokens so the parser needs almost no special handling
+ *    for binary files.
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXTokenizer.h"
+#include "FBXUtil.h"
+#include <assimp/defs.h>
+#include <stdint.h>
+#include <assimp/Exceptional.h>
+#include <assimp/ByteSwapper.h>
+
+namespace Assimp {
+namespace FBX {
+
+//enum Flag
+//{
+//   e_unknown_0 = 1 << 0,
+//   e_unknown_1 = 1 << 1,
+//   e_unknown_2 = 1 << 2,
+//   e_unknown_3 = 1 << 3,
+//   e_unknown_4 = 1 << 4,
+//   e_unknown_5 = 1 << 5,
+//   e_unknown_6 = 1 << 6,
+//   e_unknown_7 = 1 << 7,
+//   e_unknown_8 = 1 << 8,
+//   e_unknown_9 = 1 << 9,
+//   e_unknown_10 = 1 << 10,
+//   e_unknown_11 = 1 << 11,
+//   e_unknown_12 = 1 << 12,
+//   e_unknown_13 = 1 << 13,
+//   e_unknown_14 = 1 << 14,
+//   e_unknown_15 = 1 << 15,
+//   e_unknown_16 = 1 << 16,
+//   e_unknown_17 = 1 << 17,
+//   e_unknown_18 = 1 << 18,
+//   e_unknown_19 = 1 << 19,
+//   e_unknown_20 = 1 << 20,
+//   e_unknown_21 = 1 << 21,
+//   e_unknown_22 = 1 << 22,
+//   e_unknown_23 = 1 << 23,
+//   e_flag_field_size_64_bit = 1 << 24, // Not sure what is
+//   e_unknown_25 = 1 << 25,
+//   e_unknown_26 = 1 << 26,
+//   e_unknown_27 = 1 << 27,
+//   e_unknown_28 = 1 << 28,
+//   e_unknown_29 = 1 << 29,
+//   e_unknown_30 = 1 << 30,
+//   e_unknown_31 = 1 << 31
+//};
+//
+//bool check_flag(uint32_t flags, Flag to_check)
+//{
+//	return (flags & to_check) != 0;
+//}
+// ------------------------------------------------------------------------------------------------
+Token::Token(const char* sbegin, const char* send, TokenType type, unsigned int offset)
+    :
+    #ifdef DEBUG
+    contents(sbegin, static_cast<size_t>(send-sbegin)),
+    #endif
+    sbegin(sbegin)
+    , send(send)
+    , type(type)
+    , line(offset)
+    , column(BINARY_MARKER)
+{
+    ai_assert(sbegin);
+    ai_assert(send);
+
+    // binary tokens may have zero length because they are sometimes dummies
+    // inserted by TokenizeBinary()
+    ai_assert(send >= sbegin);
+}
+
+
+namespace {
+
+// ------------------------------------------------------------------------------------------------
+// signal tokenization error, this is always unrecoverable. Throws DeadlyImportError.
+AI_WONT_RETURN void TokenizeError(const std::string& message, unsigned int offset) AI_WONT_RETURN_SUFFIX;
+AI_WONT_RETURN void TokenizeError(const std::string& message, unsigned int offset)
+{
+    throw DeadlyImportError(Util::AddOffset("FBX-Tokenize",message,offset));
+}
+
+
+// ------------------------------------------------------------------------------------------------
+uint32_t Offset(const char* begin, const char* cursor) {
+    ai_assert(begin <= cursor);
+
+    return static_cast<unsigned int>(cursor - begin);
+}
+
+// ------------------------------------------------------------------------------------------------
+void TokenizeError(const std::string& message, const char* begin, const char* cursor) {
+    TokenizeError(message, Offset(begin, cursor));
+}
+
+// ------------------------------------------------------------------------------------------------
+uint32_t ReadWord(const char* input, const char*& cursor, const char* end) {
+    const size_t k_to_read = sizeof( uint32_t );
+    if(Offset(cursor, end) < k_to_read ) {
+        TokenizeError("cannot ReadWord, out of bounds",input, cursor);
+    }
+
+    uint32_t word;
+    ::memcpy(&word, cursor, 4);
+    AI_SWAP4(word);
+
+    cursor += k_to_read;
+
+    return word;
+}
+
+// ------------------------------------------------------------------------------------------------
+uint64_t ReadDoubleWord(const char* input, const char*& cursor, const char* end) {
+    const size_t k_to_read = sizeof(uint64_t);
+    if(Offset(cursor, end) < k_to_read) {
+        TokenizeError("cannot ReadDoubleWord, out of bounds",input, cursor);
+    }
+
+    uint64_t dword /*= *reinterpret_cast<const uint64_t*>(cursor)*/;
+    ::memcpy( &dword, cursor, sizeof( uint64_t ) );
+    AI_SWAP8(dword);
+
+    cursor += k_to_read;
+
+    return dword;
+}
+
+// ------------------------------------------------------------------------------------------------
+uint8_t ReadByte(const char* input, const char*& cursor, const char* end) {
+    if(Offset(cursor, end) < sizeof( uint8_t ) ) {
+        TokenizeError("cannot ReadByte, out of bounds",input, cursor);
+    }
+
+    uint8_t word;/* = *reinterpret_cast< const uint8_t* >( cursor )*/
+    ::memcpy( &word, cursor, sizeof( uint8_t ) );
+    ++cursor;
+
+    return word;
+}
+
+// ------------------------------------------------------------------------------------------------
+unsigned int ReadString(const char*& sbegin_out, const char*& send_out, const char* input,
+        const char*& cursor, const char* end, bool long_length = false, bool allow_null = false) {
+    const uint32_t len_len = long_length ? 4 : 1;
+    if(Offset(cursor, end) < len_len) {
+        TokenizeError("cannot ReadString, out of bounds reading length",input, cursor);
+    }
+
+    const uint32_t length = long_length ? ReadWord(input, cursor, end) : ReadByte(input, cursor, end);
+
+    if (Offset(cursor, end) < length) {
+        TokenizeError("cannot ReadString, length is out of bounds",input, cursor);
+    }
+
+    sbegin_out = cursor;
+    cursor += length;
+
+    send_out = cursor;
+
+    if(!allow_null) {
+        for (unsigned int i = 0; i < length; ++i) {
+            if(sbegin_out[i] == '\0') {
+                TokenizeError("failed ReadString, unexpected NUL character in string",input, cursor);
+            }
+        }
+    }
+
+    return length;
+}
+
+// ------------------------------------------------------------------------------------------------
+void ReadData(const char*& sbegin_out, const char*& send_out, const char* input, const char*& cursor, const char* end) {
+    if(Offset(cursor, end) < 1) {
+        TokenizeError("cannot ReadData, out of bounds reading length",input, cursor);
+    }
+
+    const char type = *cursor;
+    sbegin_out = cursor++;
+
+    switch(type)
+    {
+        // 16 bit int
+    case 'Y':
+        cursor += 2;
+        break;
+
+        // 1 bit bool flag (yes/no)
+    case 'C':
+        cursor += 1;
+        break;
+
+        // 32 bit int
+    case 'I':
+        // <- fall through
+
+        // float
+    case 'F':
+        cursor += 4;
+        break;
+
+        // double
+    case 'D':
+        cursor += 8;
+        break;
+
+        // 64 bit int
+    case 'L':
+        cursor += 8;
+        break;
+
+        // note: do not write cursor += ReadWord(...cursor) as this would be UB
+
+        // raw binary data
+    case 'R':
+    {
+        const uint32_t length = ReadWord(input, cursor, end);
+        cursor += length;
+        break;
+    }
+
+    case 'b':
+        // TODO: what is the 'b' type code? Right now we just skip over it /
+        // take the full range we could get
+        cursor = end;
+        break;
+
+        // array of *
+    case 'f':
+    case 'd':
+    case 'l':
+    case 'i':
+    case 'c':   {
+        const uint32_t length = ReadWord(input, cursor, end);
+        const uint32_t encoding = ReadWord(input, cursor, end);
+
+        const uint32_t comp_len = ReadWord(input, cursor, end);
+
+        // compute length based on type and check against the stored value
+        if(encoding == 0) {
+            uint32_t stride = 0;
+            switch(type)
+            {
+            case 'f':
+            case 'i':
+                stride = 4;
+                break;
+
+            case 'd':
+            case 'l':
+                stride = 8;
+                break;
+
+            case 'c':
+                stride = 1;
+                break;
+
+            default:
+                ai_assert(false);
+            };
+            ai_assert(stride > 0);
+            if(length * stride != comp_len) {
+                TokenizeError("cannot ReadData, calculated data stride differs from what the file claims",input, cursor);
+            }
+        }
+        // zip/deflate algorithm (encoding==1)? take given length. anything else? die
+        else if (encoding != 1) {
+            TokenizeError("cannot ReadData, unknown encoding",input, cursor);
+        }
+        cursor += comp_len;
+        break;
+    }
+
+        // string
+    case 'S': {
+        const char* sb, *se;
+        // 0 characters can legally happen in such strings
+        ReadString(sb, se, input, cursor, end, true, true);
+        break;
+    }
+    default:
+        TokenizeError("cannot ReadData, unexpected type code: " + std::string(&type, 1),input, cursor);
+    }
+
+    if(cursor > end) {
+        TokenizeError("cannot ReadData, the remaining size is too small for the data type: " + std::string(&type, 1),input, cursor);
+    }
+
+    // the type code is contained in the returned range
+    send_out = cursor;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+bool ReadScope(TokenList& output_tokens, const char* input, const char*& cursor, const char* end, bool const is64bits)
+{
+    // the first word contains the offset at which this block ends
+	const uint64_t end_offset = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
+
+    // we may get 0 if reading reached the end of the file -
+    // fbx files have a mysterious extra footer which I don't know
+    // how to extract any information from, but at least it always
+    // starts with a 0.
+    if(!end_offset) {
+        return false;
+    }
+
+    if(end_offset > Offset(input, end)) {
+        TokenizeError("block offset is out of range",input, cursor);
+    }
+    else if(end_offset < Offset(input, cursor)) {
+        TokenizeError("block offset is negative out of range",input, cursor);
+    }
+
+    // the second data word contains the number of properties in the scope
+	const uint64_t prop_count = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
+
+    // the third data word contains the length of the property list
+	const uint64_t prop_length = is64bits ? ReadDoubleWord(input, cursor, end) : ReadWord(input, cursor, end);
+
+    // now comes the name of the scope/key
+    const char* sbeg, *send;
+    ReadString(sbeg, send, input, cursor, end);
+
+    output_tokens.push_back(new_Token(sbeg, send, TokenType_KEY, Offset(input, cursor) ));
+
+    // now come the individual properties
+    const char* begin_cursor = cursor;
+    for (unsigned int i = 0; i < prop_count; ++i) {
+        ReadData(sbeg, send, input, cursor, begin_cursor + prop_length);
+
+        output_tokens.push_back(new_Token(sbeg, send, TokenType_DATA, Offset(input, cursor) ));
+
+        if(i != prop_count-1) {
+            output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_COMMA, Offset(input, cursor) ));
+        }
+    }
+
+    if (Offset(begin_cursor, cursor) != prop_length) {
+        TokenizeError("property length not reached, something is wrong",input, cursor);
+    }
+
+    // at the end of each nested block, there is a NUL record to indicate
+    // that the sub-scope exists (i.e. to distinguish between P: and P : {})
+    // this NUL record is 13 bytes long on 32 bit version and 25 bytes long on 64 bit.
+	const size_t sentinel_block_length = is64bits ? (sizeof(uint64_t)* 3 + 1) : (sizeof(uint32_t)* 3 + 1);
+
+    if (Offset(input, cursor) < end_offset) {
+        if (end_offset - Offset(input, cursor) < sentinel_block_length) {
+            TokenizeError("insufficient padding bytes at block end",input, cursor);
+        }
+
+        output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_OPEN_BRACKET, Offset(input, cursor) ));
+
+        // XXX this is vulnerable to stack overflowing ..
+        while(Offset(input, cursor) < end_offset - sentinel_block_length) {
+			ReadScope(output_tokens, input, cursor, input + end_offset - sentinel_block_length, is64bits);
+        }
+        output_tokens.push_back(new_Token(cursor, cursor + 1, TokenType_CLOSE_BRACKET, Offset(input, cursor) ));
+
+        for (unsigned int i = 0; i < sentinel_block_length; ++i) {
+            if(cursor[i] != '\0') {
+                TokenizeError("failed to read nested block sentinel, expected all bytes to be 0",input, cursor);
+            }
+        }
+        cursor += sentinel_block_length;
+    }
+
+    if (Offset(input, cursor) != end_offset) {
+        TokenizeError("scope length not reached, something is wrong",input, cursor);
+    }
+
+    return true;
+}
+
+} // anonymous namespace
+
+// ------------------------------------------------------------------------------------------------
+// TODO: Test FBX Binary files newer than the 7500 version to check if the 64 bits address behaviour is consistent
+void TokenizeBinary(TokenList& output_tokens, const char* input, unsigned int length)
+{
+    ai_assert(input);
+
+    if(length < 0x1b) {
+        TokenizeError("file is too short",0);
+    }
+
+    //uint32_t offset = 0x15;
+/*    const char* cursor = input + 0x15;
+
+    const uint32_t flags = ReadWord(input, cursor, input + length);
+
+    const uint8_t padding_0 = ReadByte(input, cursor, input + length); // unused
+    const uint8_t padding_1 = ReadByte(input, cursor, input + length); // unused*/
+
+    if (strncmp(input,"Kaydara FBX Binary",18)) {
+        TokenizeError("magic bytes not found",0);
+    }
+
+    const char* cursor = input + 18;
+	/*Result ignored*/ ReadByte(input, cursor, input + length);
+	/*Result ignored*/ ReadByte(input, cursor, input + length);
+	/*Result ignored*/ ReadByte(input, cursor, input + length);
+	/*Result ignored*/ ReadByte(input, cursor, input + length);
+	/*Result ignored*/ ReadByte(input, cursor, input + length);
+	const uint32_t version = ReadWord(input, cursor, input + length);
+	const bool is64bits = version >= 7500;
+    const char *end = input + length;
+    while (cursor < end ) {
+		if (!ReadScope(output_tokens, input, cursor, input + length, is64bits)) {
+            break;
+        }
+    }
+}
+
+} // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXCommon.h b/thirdparty/assimp/code/FBXCommon.h
new file mode 100644
index 0000000000..fcb20a5cad
--- /dev/null
+++ b/thirdparty/assimp/code/FBXCommon.h
@@ -0,0 +1,86 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file FBXCommon.h
+* Some useful constants and enums for dealing with FBX files.
+*/
+#ifndef AI_FBXCOMMON_H_INC
+#define AI_FBXCOMMON_H_INC
+
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+
+namespace FBX
+{
+    const std::string NULL_RECORD = { // 13 null bytes
+        '\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0','\0'
+    }; // who knows why
+    const std::string SEPARATOR = {'\x00', '\x01'}; // for use inside strings
+    const std::string MAGIC_NODE_TAG = "_$AssimpFbx$"; // from import
+    const int64_t SECOND = 46186158000; // FBX's kTime unit
+
+    // rotation order. We'll probably use EulerXYZ for everything
+    enum RotOrder {
+        RotOrder_EulerXYZ = 0,
+        RotOrder_EulerXZY,
+        RotOrder_EulerYZX,
+        RotOrder_EulerYXZ,
+        RotOrder_EulerZXY,
+        RotOrder_EulerZYX,
+
+        RotOrder_SphericXYZ,
+
+        RotOrder_MAX // end-of-enum sentinel
+    };
+
+    // transformation inheritance method. Most of the time RSrs
+    enum TransformInheritance {
+        TransformInheritance_RrSs = 0,
+        TransformInheritance_RSrs,
+        TransformInheritance_Rrs,
+
+        TransformInheritance_MAX // end-of-enum sentinel
+    };
+}
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#endif // AI_FBXCOMMON_H_INC
diff --git a/thirdparty/assimp/code/FBXCompileConfig.h b/thirdparty/assimp/code/FBXCompileConfig.h
new file mode 100644
index 0000000000..3a3841fa5b
--- /dev/null
+++ b/thirdparty/assimp/code/FBXCompileConfig.h
@@ -0,0 +1,70 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXCompileConfig.h
+ *  @brief FBX importer compile-time switches
+ */
+#ifndef INCLUDED_AI_FBX_COMPILECONFIG_H
+#define INCLUDED_AI_FBX_COMPILECONFIG_H
+
+#include <map>
+
+//
+#if _MSC_VER > 1500 || (defined __GNUC___)
+#   define ASSIMP_FBX_USE_UNORDERED_MULTIMAP
+#   else
+#   define fbx_unordered_map map
+#   define fbx_unordered_multimap multimap
+#endif
+
+#ifdef ASSIMP_FBX_USE_UNORDERED_MULTIMAP
+#   include <unordered_map>
+#   if _MSC_VER > 1600
+#       define fbx_unordered_map unordered_map
+#       define fbx_unordered_multimap unordered_multimap
+#   else
+#       define fbx_unordered_map tr1::unordered_map
+#       define fbx_unordered_multimap tr1::unordered_multimap
+#   endif
+#endif
+
+#endif // INCLUDED_AI_FBX_COMPILECONFIG_H
diff --git a/thirdparty/assimp/code/FBXConverter.cpp b/thirdparty/assimp/code/FBXConverter.cpp
new file mode 100644
index 0000000000..09ae06a64f
--- /dev/null
+++ b/thirdparty/assimp/code/FBXConverter.cpp
@@ -0,0 +1,3536 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXConverter.cpp
+ *  @brief Implementation of the FBX DOM -> aiScene converter
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXConverter.h"
+#include "FBXParser.h"
+#include "FBXMeshGeometry.h"
+#include "FBXDocument.h"
+#include "FBXUtil.h"
+#include "FBXProperties.h"
+#include "FBXImporter.h"
+
+#include <assimp/StringComparison.h>
+
+#include <assimp/scene.h>
+
+#include <assimp/CreateAnimMesh.h>
+
+#include <tuple>
+#include <memory>
+#include <iterator>
+#include <vector>
+#include <sstream>
+#include <iomanip>
+
+namespace Assimp {
+    namespace FBX {
+
+        using namespace Util;
+
+#define MAGIC_NODE_TAG "_$AssimpFbx$"
+
+#define CONVERT_FBX_TIME(time) static_cast<double>(time) / 46186158000L
+
+        FBXConverter::FBXConverter(aiScene* out, const Document& doc)
+            : defaultMaterialIndex()
+            , lights()
+            , cameras()
+            , textures()
+            , materials_converted()
+            , textures_converted()
+            , meshes_converted()
+            , node_anim_chain_bits()
+            , mNodeNameInstances()
+            , mNodeNames()
+            , anim_fps()
+            , out(out)
+            , doc(doc) {
+            // animations need to be converted first since this will
+            // populate the node_anim_chain_bits map, which is needed
+            // to determine which nodes need to be generated.
+            ConvertAnimations();
+            ConvertRootNode();
+
+            if (doc.Settings().readAllMaterials) {
+                // unfortunately this means we have to evaluate all objects
+                for (const ObjectMap::value_type& v : doc.Objects()) {
+
+                    const Object* ob = v.second->Get();
+                    if (!ob) {
+                        continue;
+                    }
+
+                    const Material* mat = dynamic_cast<const Material*>(ob);
+                    if (mat) {
+
+                        if (materials_converted.find(mat) == materials_converted.end()) {
+                            ConvertMaterial(*mat, 0);
+                        }
+                    }
+                }
+            }
+
+            ConvertGlobalSettings();
+            TransferDataToScene();
+
+            // if we didn't read any meshes set the AI_SCENE_FLAGS_INCOMPLETE
+            // to make sure the scene passes assimp's validation. FBX files
+            // need not contain geometry (i.e. camera animations, raw armatures).
+            if (out->mNumMeshes == 0) {
+                out->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
+            }
+        }
+
+
+        FBXConverter::~FBXConverter() {
+            std::for_each(meshes.begin(), meshes.end(), Util::delete_fun<aiMesh>());
+            std::for_each(materials.begin(), materials.end(), Util::delete_fun<aiMaterial>());
+            std::for_each(animations.begin(), animations.end(), Util::delete_fun<aiAnimation>());
+            std::for_each(lights.begin(), lights.end(), Util::delete_fun<aiLight>());
+            std::for_each(cameras.begin(), cameras.end(), Util::delete_fun<aiCamera>());
+            std::for_each(textures.begin(), textures.end(), Util::delete_fun<aiTexture>());
+        }
+
+        void FBXConverter::ConvertRootNode() {
+            out->mRootNode = new aiNode();
+            out->mRootNode->mName.Set("RootNode");
+
+            // root has ID 0
+            ConvertNodes(0L, *out->mRootNode);
+        }
+
+        void FBXConverter::ConvertNodes(uint64_t id, aiNode& parent, const aiMatrix4x4& parent_transform) {
+            const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(id, "Model");
+
+            std::vector<aiNode*> nodes;
+            nodes.reserve(conns.size());
+
+            std::vector<aiNode*> nodes_chain;
+            std::vector<aiNode*> post_nodes_chain;
+
+            try {
+                for (const Connection* con : conns) {
+
+                    // ignore object-property links
+                    if (con->PropertyName().length()) {
+                        continue;
+                    }
+
+                    const Object* const object = con->SourceObject();
+                    if (nullptr == object) {
+                        FBXImporter::LogWarn("failed to convert source object for Model link");
+                        continue;
+                    }
+
+                    const Model* const model = dynamic_cast<const Model*>(object);
+
+                    if (nullptr != model) {
+                        nodes_chain.clear();
+                        post_nodes_chain.clear();
+
+                        aiMatrix4x4 new_abs_transform = parent_transform;
+
+                        // even though there is only a single input node, the design of
+                        // assimp (or rather: the complicated transformation chain that
+                        // is employed by fbx) means that we may need multiple aiNode's
+                        // to represent a fbx node's transformation.
+                        GenerateTransformationNodeChain(*model, nodes_chain, post_nodes_chain);
+
+                        ai_assert(nodes_chain.size());
+
+                        std::string original_name = FixNodeName(model->Name());
+
+                        // check if any of the nodes in the chain has the name the fbx node
+                        // is supposed to have. If there is none, add another node to
+                        // preserve the name - people might have scripts etc. that rely
+                        // on specific node names.
+                        aiNode* name_carrier = NULL;
+                        for (aiNode* prenode : nodes_chain) {
+                            if (!strcmp(prenode->mName.C_Str(), original_name.c_str())) {
+                                name_carrier = prenode;
+                                break;
+                            }
+                        }
+
+                        if (!name_carrier) {
+                            std::string old_original_name = original_name;
+                            GetUniqueName(old_original_name, original_name);
+                            nodes_chain.push_back(new aiNode(original_name));
+                        }
+                        else {
+                            original_name = nodes_chain.back()->mName.C_Str();
+                        }
+
+                        //setup metadata on newest node
+                        SetupNodeMetadata(*model, *nodes_chain.back());
+
+                        // link all nodes in a row
+                        aiNode* last_parent = &parent;
+                        for (aiNode* prenode : nodes_chain) {
+                            ai_assert(prenode);
+
+                            if (last_parent != &parent) {
+                                last_parent->mNumChildren = 1;
+                                last_parent->mChildren = new aiNode*[1];
+                                last_parent->mChildren[0] = prenode;
+                            }
+
+                            prenode->mParent = last_parent;
+                            last_parent = prenode;
+
+                            new_abs_transform *= prenode->mTransformation;
+                        }
+
+                        // attach geometry
+                        ConvertModel(*model, *nodes_chain.back(), new_abs_transform);
+
+                        // check if there will be any child nodes
+                        const std::vector<const Connection*>& child_conns
+                            = doc.GetConnectionsByDestinationSequenced(model->ID(), "Model");
+
+                        // if so, link the geometric transform inverse nodes
+                        // before we attach any child nodes
+                        if (child_conns.size()) {
+                            for (aiNode* postnode : post_nodes_chain) {
+                                ai_assert(postnode);
+
+                                if (last_parent != &parent) {
+                                    last_parent->mNumChildren = 1;
+                                    last_parent->mChildren = new aiNode*[1];
+                                    last_parent->mChildren[0] = postnode;
+                                }
+
+                                postnode->mParent = last_parent;
+                                last_parent = postnode;
+
+                                new_abs_transform *= postnode->mTransformation;
+                            }
+                        }
+                        else {
+                            // free the nodes we allocated as we don't need them
+                            Util::delete_fun<aiNode> deleter;
+                            std::for_each(
+                                post_nodes_chain.begin(),
+                                post_nodes_chain.end(),
+                                deleter
+                            );
+                        }
+
+                        // attach sub-nodes (if any)
+                        ConvertNodes(model->ID(), *last_parent, new_abs_transform);
+
+                        if (doc.Settings().readLights) {
+                            ConvertLights(*model, original_name);
+                        }
+
+                        if (doc.Settings().readCameras) {
+                            ConvertCameras(*model, original_name);
+                        }
+
+                        nodes.push_back(nodes_chain.front());
+                        nodes_chain.clear();
+                    }
+                }
+
+                if (nodes.size()) {
+                    parent.mChildren = new aiNode*[nodes.size()]();
+                    parent.mNumChildren = static_cast<unsigned int>(nodes.size());
+
+                    std::swap_ranges(nodes.begin(), nodes.end(), parent.mChildren);
+                }
+            }
+            catch (std::exception&) {
+                Util::delete_fun<aiNode> deleter;
+                std::for_each(nodes.begin(), nodes.end(), deleter);
+                std::for_each(nodes_chain.begin(), nodes_chain.end(), deleter);
+                std::for_each(post_nodes_chain.begin(), post_nodes_chain.end(), deleter);
+            }
+        }
+
+
+        void FBXConverter::ConvertLights(const Model& model, const std::string &orig_name) {
+            const std::vector<const NodeAttribute*>& node_attrs = model.GetAttributes();
+            for (const NodeAttribute* attr : node_attrs) {
+                const Light* const light = dynamic_cast<const Light*>(attr);
+                if (light) {
+                    ConvertLight(*light, orig_name);
+                }
+            }
+        }
+
+        void FBXConverter::ConvertCameras(const Model& model, const std::string &orig_name) {
+            const std::vector<const NodeAttribute*>& node_attrs = model.GetAttributes();
+            for (const NodeAttribute* attr : node_attrs) {
+                const Camera* const cam = dynamic_cast<const Camera*>(attr);
+                if (cam) {
+                    ConvertCamera(*cam, orig_name);
+                }
+            }
+        }
+
+        void FBXConverter::ConvertLight(const Light& light, const std::string &orig_name) {
+            lights.push_back(new aiLight());
+            aiLight* const out_light = lights.back();
+
+            out_light->mName.Set(orig_name);
+
+            const float intensity = light.Intensity() / 100.0f;
+            const aiVector3D& col = light.Color();
+
+            out_light->mColorDiffuse = aiColor3D(col.x, col.y, col.z);
+            out_light->mColorDiffuse.r *= intensity;
+            out_light->mColorDiffuse.g *= intensity;
+            out_light->mColorDiffuse.b *= intensity;
+
+            out_light->mColorSpecular = out_light->mColorDiffuse;
+
+            //lights are defined along negative y direction
+            out_light->mPosition = aiVector3D(0.0f);
+            out_light->mDirection = aiVector3D(0.0f, -1.0f, 0.0f);
+            out_light->mUp = aiVector3D(0.0f, 0.0f, -1.0f);
+
+            switch (light.LightType())
+            {
+            case Light::Type_Point:
+                out_light->mType = aiLightSource_POINT;
+                break;
+
+            case Light::Type_Directional:
+                out_light->mType = aiLightSource_DIRECTIONAL;
+                break;
+
+            case Light::Type_Spot:
+                out_light->mType = aiLightSource_SPOT;
+                out_light->mAngleOuterCone = AI_DEG_TO_RAD(light.OuterAngle());
+                out_light->mAngleInnerCone = AI_DEG_TO_RAD(light.InnerAngle());
+                break;
+
+            case Light::Type_Area:
+                FBXImporter::LogWarn("cannot represent area light, set to UNDEFINED");
+                out_light->mType = aiLightSource_UNDEFINED;
+                break;
+
+            case Light::Type_Volume:
+                FBXImporter::LogWarn("cannot represent volume light, set to UNDEFINED");
+                out_light->mType = aiLightSource_UNDEFINED;
+                break;
+            default:
+                ai_assert(false);
+            }
+
+            float decay = light.DecayStart();
+            switch (light.DecayType())
+            {
+            case Light::Decay_None:
+                out_light->mAttenuationConstant = decay;
+                out_light->mAttenuationLinear = 0.0f;
+                out_light->mAttenuationQuadratic = 0.0f;
+                break;
+            case Light::Decay_Linear:
+                out_light->mAttenuationConstant = 0.0f;
+                out_light->mAttenuationLinear = 2.0f / decay;
+                out_light->mAttenuationQuadratic = 0.0f;
+                break;
+            case Light::Decay_Quadratic:
+                out_light->mAttenuationConstant = 0.0f;
+                out_light->mAttenuationLinear = 0.0f;
+                out_light->mAttenuationQuadratic = 2.0f / (decay * decay);
+                break;
+            case Light::Decay_Cubic:
+                FBXImporter::LogWarn("cannot represent cubic attenuation, set to Quadratic");
+                out_light->mAttenuationQuadratic = 1.0f;
+                break;
+            default:
+                ai_assert(false);
+            }
+        }
+
+        void FBXConverter::ConvertCamera(const Camera& cam, const std::string &orig_name)
+        {
+            cameras.push_back(new aiCamera());
+            aiCamera* const out_camera = cameras.back();
+
+            out_camera->mName.Set(orig_name);
+
+            out_camera->mAspect = cam.AspectWidth() / cam.AspectHeight();
+
+            //cameras are defined along positive x direction
+            /*out_camera->mPosition = cam.Position();
+            out_camera->mLookAt = (cam.InterestPosition() - out_camera->mPosition).Normalize();
+            out_camera->mUp = cam.UpVector();*/
+
+            out_camera->mPosition = aiVector3D(0.0f);
+            out_camera->mLookAt = aiVector3D(1.0f, 0.0f, 0.0f);
+            out_camera->mUp = aiVector3D(0.0f, 1.0f, 0.0f);
+
+            out_camera->mHorizontalFOV = AI_DEG_TO_RAD(cam.FieldOfView());
+
+            out_camera->mClipPlaneNear = cam.NearPlane();
+            out_camera->mClipPlaneFar = cam.FarPlane();
+
+            out_camera->mHorizontalFOV = AI_DEG_TO_RAD(cam.FieldOfView());
+            out_camera->mClipPlaneNear = cam.NearPlane();
+            out_camera->mClipPlaneFar = cam.FarPlane();
+        }
+
+        void FBXConverter::GetUniqueName(const std::string &name, std::string &uniqueName)
+        {
+            uniqueName = name;
+            int i = 0;
+            auto it = mNodeNameInstances.find(name); // duplicate node name instance count
+            if (it != mNodeNameInstances.end())
+            {
+                i = it->second;
+                while (mNodeNames.find(uniqueName) != mNodeNames.end())
+                {
+                    i++;
+                    std::stringstream ext;
+                    ext << name << std::setfill('0') << std::setw(3) << i;
+                    uniqueName = ext.str();
+                }
+            }
+            mNodeNameInstances[name] = i;
+            mNodeNames.insert(uniqueName);
+        }
+
+        const char* FBXConverter::NameTransformationComp(TransformationComp comp) {
+            switch (comp) {
+            case TransformationComp_Translation:
+                return "Translation";
+            case TransformationComp_RotationOffset:
+                return "RotationOffset";
+            case TransformationComp_RotationPivot:
+                return "RotationPivot";
+            case TransformationComp_PreRotation:
+                return "PreRotation";
+            case TransformationComp_Rotation:
+                return "Rotation";
+            case TransformationComp_PostRotation:
+                return "PostRotation";
+            case TransformationComp_RotationPivotInverse:
+                return "RotationPivotInverse";
+            case TransformationComp_ScalingOffset:
+                return "ScalingOffset";
+            case TransformationComp_ScalingPivot:
+                return "ScalingPivot";
+            case TransformationComp_Scaling:
+                return "Scaling";
+            case TransformationComp_ScalingPivotInverse:
+                return "ScalingPivotInverse";
+            case TransformationComp_GeometricScaling:
+                return "GeometricScaling";
+            case TransformationComp_GeometricRotation:
+                return "GeometricRotation";
+            case TransformationComp_GeometricTranslation:
+                return "GeometricTranslation";
+            case TransformationComp_GeometricScalingInverse:
+                return "GeometricScalingInverse";
+            case TransformationComp_GeometricRotationInverse:
+                return "GeometricRotationInverse";
+            case TransformationComp_GeometricTranslationInverse:
+                return "GeometricTranslationInverse";
+            case TransformationComp_MAXIMUM: // this is to silence compiler warnings
+            default:
+                break;
+            }
+
+            ai_assert(false);
+
+            return nullptr;
+        }
+
+        const char* FBXConverter::NameTransformationCompProperty(TransformationComp comp) {
+            switch (comp) {
+            case TransformationComp_Translation:
+                return "Lcl Translation";
+            case TransformationComp_RotationOffset:
+                return "RotationOffset";
+            case TransformationComp_RotationPivot:
+                return "RotationPivot";
+            case TransformationComp_PreRotation:
+                return "PreRotation";
+            case TransformationComp_Rotation:
+                return "Lcl Rotation";
+            case TransformationComp_PostRotation:
+                return "PostRotation";
+            case TransformationComp_RotationPivotInverse:
+                return "RotationPivotInverse";
+            case TransformationComp_ScalingOffset:
+                return "ScalingOffset";
+            case TransformationComp_ScalingPivot:
+                return "ScalingPivot";
+            case TransformationComp_Scaling:
+                return "Lcl Scaling";
+            case TransformationComp_ScalingPivotInverse:
+                return "ScalingPivotInverse";
+            case TransformationComp_GeometricScaling:
+                return "GeometricScaling";
+            case TransformationComp_GeometricRotation:
+                return "GeometricRotation";
+            case TransformationComp_GeometricTranslation:
+                return "GeometricTranslation";
+            case TransformationComp_GeometricScalingInverse:
+                return "GeometricScalingInverse";
+            case TransformationComp_GeometricRotationInverse:
+                return "GeometricRotationInverse";
+            case TransformationComp_GeometricTranslationInverse:
+                return "GeometricTranslationInverse";
+            case TransformationComp_MAXIMUM: // this is to silence compiler warnings
+                break;
+            }
+
+            ai_assert(false);
+
+            return nullptr;
+        }
+
+        aiVector3D FBXConverter::TransformationCompDefaultValue(TransformationComp comp)
+        {
+            // XXX a neat way to solve the never-ending special cases for scaling
+            // would be to do everything in log space!
+            return comp == TransformationComp_Scaling ? aiVector3D(1.f, 1.f, 1.f) : aiVector3D();
+        }
+
+        void FBXConverter::GetRotationMatrix(Model::RotOrder mode, const aiVector3D& rotation, aiMatrix4x4& out)
+        {
+            if (mode == Model::RotOrder_SphericXYZ) {
+                FBXImporter::LogError("Unsupported RotationMode: SphericXYZ");
+                out = aiMatrix4x4();
+                return;
+            }
+
+            const float angle_epsilon = 1e-6f;
+
+            out = aiMatrix4x4();
+
+            bool is_id[3] = { true, true, true };
+
+            aiMatrix4x4 temp[3];
+            if (std::fabs(rotation.z) > angle_epsilon) {
+                aiMatrix4x4::RotationZ(AI_DEG_TO_RAD(rotation.z), temp[2]);
+                is_id[2] = false;
+            }
+            if (std::fabs(rotation.y) > angle_epsilon) {
+                aiMatrix4x4::RotationY(AI_DEG_TO_RAD(rotation.y), temp[1]);
+                is_id[1] = false;
+            }
+            if (std::fabs(rotation.x) > angle_epsilon) {
+                aiMatrix4x4::RotationX(AI_DEG_TO_RAD(rotation.x), temp[0]);
+                is_id[0] = false;
+            }
+
+            int order[3] = { -1, -1, -1 };
+
+            // note: rotation order is inverted since we're left multiplying as is usual in assimp
+            switch (mode)
+            {
+            case Model::RotOrder_EulerXYZ:
+                order[0] = 2;
+                order[1] = 1;
+                order[2] = 0;
+                break;
+
+            case Model::RotOrder_EulerXZY:
+                order[0] = 1;
+                order[1] = 2;
+                order[2] = 0;
+                break;
+
+            case Model::RotOrder_EulerYZX:
+                order[0] = 0;
+                order[1] = 2;
+                order[2] = 1;
+                break;
+
+            case Model::RotOrder_EulerYXZ:
+                order[0] = 2;
+                order[1] = 0;
+                order[2] = 1;
+                break;
+
+            case Model::RotOrder_EulerZXY:
+                order[0] = 1;
+                order[1] = 0;
+                order[2] = 2;
+                break;
+
+            case Model::RotOrder_EulerZYX:
+                order[0] = 0;
+                order[1] = 1;
+                order[2] = 2;
+                break;
+
+            default:
+                ai_assert(false);
+                break;
+            }
+
+            ai_assert(order[0] >= 0);
+            ai_assert(order[0] <= 2);
+            ai_assert(order[1] >= 0);
+            ai_assert(order[1] <= 2);
+            ai_assert(order[2] >= 0);
+            ai_assert(order[2] <= 2);
+
+            if (!is_id[order[0]]) {
+                out = temp[order[0]];
+            }
+
+            if (!is_id[order[1]]) {
+                out = out * temp[order[1]];
+            }
+
+            if (!is_id[order[2]]) {
+                out = out * temp[order[2]];
+            }
+        }
+
+        bool FBXConverter::NeedsComplexTransformationChain(const Model& model)
+        {
+            const PropertyTable& props = model.Props();
+            bool ok;
+
+            const float zero_epsilon = 1e-6f;
+            const aiVector3D all_ones(1.0f, 1.0f, 1.0f);
+            for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i) {
+                const TransformationComp comp = static_cast<TransformationComp>(i);
+
+                if (comp == TransformationComp_Rotation || comp == TransformationComp_Scaling || comp == TransformationComp_Translation) {
+                    continue;
+                }
+
+                bool scale_compare = (comp == TransformationComp_GeometricScaling || comp == TransformationComp_Scaling);
+
+                const aiVector3D& v = PropertyGet<aiVector3D>(props, NameTransformationCompProperty(comp), ok);
+                if (ok && scale_compare) {
+                    if ((v - all_ones).SquareLength() > zero_epsilon) {
+                        return true;
+                    }
+                }
+                else if (ok) {
+                    if (v.SquareLength() > zero_epsilon) {
+                        return true;
+                    }
+                }
+            }
+
+            return false;
+        }
+
+        std::string FBXConverter::NameTransformationChainNode(const std::string& name, TransformationComp comp)
+        {
+            return name + std::string(MAGIC_NODE_TAG) + "_" + NameTransformationComp(comp);
+        }
+
+        void FBXConverter::GenerateTransformationNodeChain(const Model& model, std::vector<aiNode*>& output_nodes,
+            std::vector<aiNode*>& post_output_nodes) {
+            const PropertyTable& props = model.Props();
+            const Model::RotOrder rot = model.RotationOrder();
+
+            bool ok;
+
+            aiMatrix4x4 chain[TransformationComp_MAXIMUM];
+            std::fill_n(chain, static_cast<unsigned int>(TransformationComp_MAXIMUM), aiMatrix4x4());
+
+            // generate transformation matrices for all the different transformation components
+            const float zero_epsilon = 1e-6f;
+            const aiVector3D all_ones(1.0f, 1.0f, 1.0f);
+            bool is_complex = false;
+
+            const aiVector3D& PreRotation = PropertyGet<aiVector3D>(props, "PreRotation", ok);
+            if (ok && PreRotation.SquareLength() > zero_epsilon) {
+                is_complex = true;
+
+                GetRotationMatrix(Model::RotOrder::RotOrder_EulerXYZ, PreRotation, chain[TransformationComp_PreRotation]);
+            }
+
+            const aiVector3D& PostRotation = PropertyGet<aiVector3D>(props, "PostRotation", ok);
+            if (ok && PostRotation.SquareLength() > zero_epsilon) {
+                is_complex = true;
+
+                GetRotationMatrix(Model::RotOrder::RotOrder_EulerXYZ, PostRotation, chain[TransformationComp_PostRotation]);
+            }
+
+            const aiVector3D& RotationPivot = PropertyGet<aiVector3D>(props, "RotationPivot", ok);
+            if (ok && RotationPivot.SquareLength() > zero_epsilon) {
+                is_complex = true;
+
+                aiMatrix4x4::Translation(RotationPivot, chain[TransformationComp_RotationPivot]);
+                aiMatrix4x4::Translation(-RotationPivot, chain[TransformationComp_RotationPivotInverse]);
+            }
+
+            const aiVector3D& RotationOffset = PropertyGet<aiVector3D>(props, "RotationOffset", ok);
+            if (ok && RotationOffset.SquareLength() > zero_epsilon) {
+                is_complex = true;
+
+                aiMatrix4x4::Translation(RotationOffset, chain[TransformationComp_RotationOffset]);
+            }
+
+            const aiVector3D& ScalingOffset = PropertyGet<aiVector3D>(props, "ScalingOffset", ok);
+            if (ok && ScalingOffset.SquareLength() > zero_epsilon) {
+                is_complex = true;
+
+                aiMatrix4x4::Translation(ScalingOffset, chain[TransformationComp_ScalingOffset]);
+            }
+
+            const aiVector3D& ScalingPivot = PropertyGet<aiVector3D>(props, "ScalingPivot", ok);
+            if (ok && ScalingPivot.SquareLength() > zero_epsilon) {
+                is_complex = true;
+
+                aiMatrix4x4::Translation(ScalingPivot, chain[TransformationComp_ScalingPivot]);
+                aiMatrix4x4::Translation(-ScalingPivot, chain[TransformationComp_ScalingPivotInverse]);
+            }
+
+            const aiVector3D& Translation = PropertyGet<aiVector3D>(props, "Lcl Translation", ok);
+            if (ok && Translation.SquareLength() > zero_epsilon) {
+                aiMatrix4x4::Translation(Translation, chain[TransformationComp_Translation]);
+            }
+
+            const aiVector3D& Scaling = PropertyGet<aiVector3D>(props, "Lcl Scaling", ok);
+            if (ok && (Scaling - all_ones).SquareLength() > zero_epsilon) {
+                aiMatrix4x4::Scaling(Scaling, chain[TransformationComp_Scaling]);
+            }
+
+            const aiVector3D& Rotation = PropertyGet<aiVector3D>(props, "Lcl Rotation", ok);
+            if (ok && Rotation.SquareLength() > zero_epsilon) {
+                GetRotationMatrix(rot, Rotation, chain[TransformationComp_Rotation]);
+            }
+
+            const aiVector3D& GeometricScaling = PropertyGet<aiVector3D>(props, "GeometricScaling", ok);
+            if (ok && (GeometricScaling - all_ones).SquareLength() > zero_epsilon) {
+                is_complex = true;
+                aiMatrix4x4::Scaling(GeometricScaling, chain[TransformationComp_GeometricScaling]);
+                aiVector3D GeometricScalingInverse = GeometricScaling;
+                bool canscale = true;
+                for (unsigned int i = 0; i < 3; ++i) {
+                    if (std::fabs(GeometricScalingInverse[i]) > zero_epsilon) {
+                        GeometricScalingInverse[i] = 1.0f / GeometricScaling[i];
+                    }
+                    else {
+                        FBXImporter::LogError("cannot invert geometric scaling matrix with a 0.0 scale component");
+                        canscale = false;
+                        break;
+                    }
+                }
+                if (canscale) {
+                    aiMatrix4x4::Scaling(GeometricScalingInverse, chain[TransformationComp_GeometricScalingInverse]);
+                }
+            }
+
+            const aiVector3D& GeometricRotation = PropertyGet<aiVector3D>(props, "GeometricRotation", ok);
+            if (ok && GeometricRotation.SquareLength() > zero_epsilon) {
+                is_complex = true;
+                GetRotationMatrix(rot, GeometricRotation, chain[TransformationComp_GeometricRotation]);
+                GetRotationMatrix(rot, GeometricRotation, chain[TransformationComp_GeometricRotationInverse]);
+                chain[TransformationComp_GeometricRotationInverse].Inverse();
+            }
+
+            const aiVector3D& GeometricTranslation = PropertyGet<aiVector3D>(props, "GeometricTranslation", ok);
+            if (ok && GeometricTranslation.SquareLength() > zero_epsilon) {
+                is_complex = true;
+                aiMatrix4x4::Translation(GeometricTranslation, chain[TransformationComp_GeometricTranslation]);
+                aiMatrix4x4::Translation(-GeometricTranslation, chain[TransformationComp_GeometricTranslationInverse]);
+            }
+
+            // is_complex needs to be consistent with NeedsComplexTransformationChain()
+            // or the interplay between this code and the animation converter would
+            // not be guaranteed.
+            ai_assert(NeedsComplexTransformationChain(model) == is_complex);
+
+            std::string name = FixNodeName(model.Name());
+
+            // now, if we have more than just Translation, Scaling and Rotation,
+            // we need to generate a full node chain to accommodate for assimp's
+            // lack to express pivots and offsets.
+            if (is_complex && doc.Settings().preservePivots) {
+                FBXImporter::LogInfo("generating full transformation chain for node: " + name);
+
+                // query the anim_chain_bits dictionary to find out which chain elements
+                // have associated node animation channels. These can not be dropped
+                // even if they have identity transform in bind pose.
+                NodeAnimBitMap::const_iterator it = node_anim_chain_bits.find(name);
+                const unsigned int anim_chain_bitmask = (it == node_anim_chain_bits.end() ? 0 : (*it).second);
+
+                unsigned int bit = 0x1;
+                for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i, bit <<= 1) {
+                    const TransformationComp comp = static_cast<TransformationComp>(i);
+
+                    if (chain[i].IsIdentity() && (anim_chain_bitmask & bit) == 0) {
+                        continue;
+                    }
+
+                    if (comp == TransformationComp_PostRotation) {
+                        chain[i] = chain[i].Inverse();
+                    }
+
+                    aiNode* nd = new aiNode();
+                    nd->mName.Set(NameTransformationChainNode(name, comp));
+                    nd->mTransformation = chain[i];
+
+                    // geometric inverses go in a post-node chain
+                    if (comp == TransformationComp_GeometricScalingInverse ||
+                        comp == TransformationComp_GeometricRotationInverse ||
+                        comp == TransformationComp_GeometricTranslationInverse
+                        ) {
+                        post_output_nodes.push_back(nd);
+                    }
+                    else {
+                        output_nodes.push_back(nd);
+                    }
+                }
+
+                ai_assert(output_nodes.size());
+                return;
+            }
+
+            // else, we can just multiply the matrices together
+            aiNode* nd = new aiNode();
+            output_nodes.push_back(nd);
+            std::string uniqueName;
+            GetUniqueName(name, uniqueName);
+
+            nd->mName.Set(uniqueName);
+
+            for (const auto &transform : chain) {
+                nd->mTransformation = nd->mTransformation * transform;
+            }
+        }
+
+        void FBXConverter::SetupNodeMetadata(const Model& model, aiNode& nd)
+        {
+            const PropertyTable& props = model.Props();
+            DirectPropertyMap unparsedProperties = props.GetUnparsedProperties();
+
+            // create metadata on node
+            const std::size_t numStaticMetaData = 2;
+            aiMetadata* data = aiMetadata::Alloc(static_cast<unsigned int>(unparsedProperties.size() + numStaticMetaData));
+            nd.mMetaData = data;
+            int index = 0;
+
+            // find user defined properties (3ds Max)
+            data->Set(index++, "UserProperties", aiString(PropertyGet<std::string>(props, "UDP3DSMAX", "")));
+            // preserve the info that a node was marked as Null node in the original file.
+            data->Set(index++, "IsNull", model.IsNull() ? true : false);
+
+            // add unparsed properties to the node's metadata
+            for (const DirectPropertyMap::value_type& prop : unparsedProperties) {
+                // Interpret the property as a concrete type
+                if (const TypedProperty<bool>* interpreted = prop.second->As<TypedProperty<bool> >()) {
+                    data->Set(index++, prop.first, interpreted->Value());
+                }
+                else if (const TypedProperty<int>* interpreted = prop.second->As<TypedProperty<int> >()) {
+                    data->Set(index++, prop.first, interpreted->Value());
+                }
+                else if (const TypedProperty<uint64_t>* interpreted = prop.second->As<TypedProperty<uint64_t> >()) {
+                    data->Set(index++, prop.first, interpreted->Value());
+                }
+                else if (const TypedProperty<float>* interpreted = prop.second->As<TypedProperty<float> >()) {
+                    data->Set(index++, prop.first, interpreted->Value());
+                }
+                else if (const TypedProperty<std::string>* interpreted = prop.second->As<TypedProperty<std::string> >()) {
+                    data->Set(index++, prop.first, aiString(interpreted->Value()));
+                }
+                else if (const TypedProperty<aiVector3D>* interpreted = prop.second->As<TypedProperty<aiVector3D> >()) {
+                    data->Set(index++, prop.first, interpreted->Value());
+                }
+                else {
+                    ai_assert(false);
+                }
+            }
+        }
+
+        void FBXConverter::ConvertModel(const Model& model, aiNode& nd, const aiMatrix4x4& node_global_transform)
+        {
+            const std::vector<const Geometry*>& geos = model.GetGeometry();
+
+            std::vector<unsigned int> meshes;
+            meshes.reserve(geos.size());
+
+            for (const Geometry* geo : geos) {
+
+                const MeshGeometry* const mesh = dynamic_cast<const MeshGeometry*>(geo);
+                const LineGeometry* const line = dynamic_cast<const LineGeometry*>(geo);
+                if (mesh) {
+                    const std::vector<unsigned int>& indices = ConvertMesh(*mesh, model, node_global_transform, nd);
+                    std::copy(indices.begin(), indices.end(), std::back_inserter(meshes));
+                }
+                else if (line) {
+                    const std::vector<unsigned int>& indices = ConvertLine(*line, model, node_global_transform, nd);
+                    std::copy(indices.begin(), indices.end(), std::back_inserter(meshes));
+                }
+                else {
+                    FBXImporter::LogWarn("ignoring unrecognized geometry: " + geo->Name());
+                }
+            }
+
+            if (meshes.size()) {
+                nd.mMeshes = new unsigned int[meshes.size()]();
+                nd.mNumMeshes = static_cast<unsigned int>(meshes.size());
+
+                std::swap_ranges(meshes.begin(), meshes.end(), nd.mMeshes);
+            }
+        }
+
+        std::vector<unsigned int> FBXConverter::ConvertMesh(const MeshGeometry& mesh, const Model& model,
+            const aiMatrix4x4& node_global_transform, aiNode& nd)
+        {
+            std::vector<unsigned int> temp;
+
+            MeshMap::const_iterator it = meshes_converted.find(&mesh);
+            if (it != meshes_converted.end()) {
+                std::copy((*it).second.begin(), (*it).second.end(), std::back_inserter(temp));
+                return temp;
+            }
+
+            const std::vector<aiVector3D>& vertices = mesh.GetVertices();
+            const std::vector<unsigned int>& faces = mesh.GetFaceIndexCounts();
+            if (vertices.empty() || faces.empty()) {
+                FBXImporter::LogWarn("ignoring empty geometry: " + mesh.Name());
+                return temp;
+            }
+
+            // one material per mesh maps easily to aiMesh. Multiple material
+            // meshes need to be split.
+            const MatIndexArray& mindices = mesh.GetMaterialIndices();
+            if (doc.Settings().readMaterials && !mindices.empty()) {
+                const MatIndexArray::value_type base = mindices[0];
+                for (MatIndexArray::value_type index : mindices) {
+                    if (index != base) {
+                        return ConvertMeshMultiMaterial(mesh, model, node_global_transform, nd);
+                    }
+                }
+            }
+
+            // faster code-path, just copy the data
+            temp.push_back(ConvertMeshSingleMaterial(mesh, model, node_global_transform, nd));
+            return temp;
+        }
+
+        std::vector<unsigned int> FBXConverter::ConvertLine(const LineGeometry& line, const Model& model,
+            const aiMatrix4x4& node_global_transform, aiNode& nd)
+        {
+            std::vector<unsigned int> temp;
+
+            const std::vector<aiVector3D>& vertices = line.GetVertices();
+            const std::vector<int>& indices = line.GetIndices();
+            if (vertices.empty() || indices.empty()) {
+                FBXImporter::LogWarn("ignoring empty line: " + line.Name());
+                return temp;
+            }
+
+            aiMesh* const out_mesh = SetupEmptyMesh(line, nd);
+            out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+
+            // copy vertices
+            out_mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
+            out_mesh->mVertices = new aiVector3D[out_mesh->mNumVertices];
+            std::copy(vertices.begin(), vertices.end(), out_mesh->mVertices);
+
+            //Number of line segments (faces) is "Number of Points - Number of Endpoints"
+            //N.B.: Endpoints in FbxLine are denoted by negative indices.
+            //If such an Index is encountered, add 1 and multiply by -1 to get the real index.
+            unsigned int epcount = 0;
+            for (unsigned i = 0; i < indices.size(); i++)
+            {
+                if (indices[i] < 0) epcount++;
+            }
+            unsigned int pcount = static_cast<unsigned int>( indices.size() );
+            unsigned int scount = out_mesh->mNumFaces = pcount - epcount;
+
+            aiFace* fac = out_mesh->mFaces = new aiFace[scount]();
+            for (unsigned int i = 0; i < pcount; ++i) {
+                if (indices[i] < 0) continue;
+                aiFace& f = *fac++;
+                f.mNumIndices = 2; //2 == aiPrimitiveType_LINE 
+                f.mIndices = new unsigned int[2];
+                f.mIndices[0] = indices[i];
+                int segid = indices[(i + 1 == pcount ? 0 : i + 1)];   //If we have reached he last point, wrap around
+                f.mIndices[1] = (segid < 0 ? (segid + 1)*-1 : segid); //Convert EndPoint Index to normal Index
+            }
+            temp.push_back(static_cast<unsigned int>(meshes.size() - 1));
+            return temp;
+        }
+
+        aiMesh* FBXConverter::SetupEmptyMesh(const Geometry& mesh, aiNode& nd)
+        {
+            aiMesh* const out_mesh = new aiMesh();
+            meshes.push_back(out_mesh);
+            meshes_converted[&mesh].push_back(static_cast<unsigned int>(meshes.size() - 1));
+
+            // set name
+            std::string name = mesh.Name();
+            if (name.substr(0, 10) == "Geometry::") {
+                name = name.substr(10);
+            }
+
+            if (name.length()) {
+                out_mesh->mName.Set(name);
+            }
+            else
+            {
+                out_mesh->mName = nd.mName;
+            }
+
+            return out_mesh;
+        }
+
+        unsigned int FBXConverter::ConvertMeshSingleMaterial(const MeshGeometry& mesh, const Model& model,
+            const aiMatrix4x4& node_global_transform, aiNode& nd)
+        {
+            const MatIndexArray& mindices = mesh.GetMaterialIndices();
+            aiMesh* const out_mesh = SetupEmptyMesh(mesh, nd);
+
+            const std::vector<aiVector3D>& vertices = mesh.GetVertices();
+            const std::vector<unsigned int>& faces = mesh.GetFaceIndexCounts();
+
+            // copy vertices
+            out_mesh->mNumVertices = static_cast<unsigned int>(vertices.size());
+            out_mesh->mVertices = new aiVector3D[vertices.size()];
+
+            std::copy(vertices.begin(), vertices.end(), out_mesh->mVertices);
+
+            // generate dummy faces
+            out_mesh->mNumFaces = static_cast<unsigned int>(faces.size());
+            aiFace* fac = out_mesh->mFaces = new aiFace[faces.size()]();
+
+            unsigned int cursor = 0;
+            for (unsigned int pcount : faces) {
+                aiFace& f = *fac++;
+                f.mNumIndices = pcount;
+                f.mIndices = new unsigned int[pcount];
+                switch (pcount)
+                {
+                case 1:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
+                    break;
+                case 2:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+                    break;
+                case 3:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+                    break;
+                default:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+                    break;
+                }
+                for (unsigned int i = 0; i < pcount; ++i) {
+                    f.mIndices[i] = cursor++;
+                }
+            }
+
+            // copy normals
+            const std::vector<aiVector3D>& normals = mesh.GetNormals();
+            if (normals.size()) {
+                ai_assert(normals.size() == vertices.size());
+
+                out_mesh->mNormals = new aiVector3D[vertices.size()];
+                std::copy(normals.begin(), normals.end(), out_mesh->mNormals);
+            }
+
+            // copy tangents - assimp requires both tangents and bitangents (binormals)
+            // to be present, or neither of them. Compute binormals from normals
+            // and tangents if needed.
+            const std::vector<aiVector3D>& tangents = mesh.GetTangents();
+            const std::vector<aiVector3D>* binormals = &mesh.GetBinormals();
+
+            if (tangents.size()) {
+                std::vector<aiVector3D> tempBinormals;
+                if (!binormals->size()) {
+                    if (normals.size()) {
+                        tempBinormals.resize(normals.size());
+                        for (unsigned int i = 0; i < tangents.size(); ++i) {
+                            tempBinormals[i] = normals[i] ^ tangents[i];
+                        }
+
+                        binormals = &tempBinormals;
+                    }
+                    else {
+                        binormals = NULL;
+                    }
+                }
+
+                if (binormals) {
+                    ai_assert(tangents.size() == vertices.size());
+                    ai_assert(binormals->size() == vertices.size());
+
+                    out_mesh->mTangents = new aiVector3D[vertices.size()];
+                    std::copy(tangents.begin(), tangents.end(), out_mesh->mTangents);
+
+                    out_mesh->mBitangents = new aiVector3D[vertices.size()];
+                    std::copy(binormals->begin(), binormals->end(), out_mesh->mBitangents);
+                }
+            }
+
+            // copy texture coords
+            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                const std::vector<aiVector2D>& uvs = mesh.GetTextureCoords(i);
+                if (uvs.empty()) {
+                    break;
+                }
+
+                aiVector3D* out_uv = out_mesh->mTextureCoords[i] = new aiVector3D[vertices.size()];
+                for (const aiVector2D& v : uvs) {
+                    *out_uv++ = aiVector3D(v.x, v.y, 0.0f);
+                }
+
+                out_mesh->mNumUVComponents[i] = 2;
+            }
+
+            // copy vertex colors
+            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+                const std::vector<aiColor4D>& colors = mesh.GetVertexColors(i);
+                if (colors.empty()) {
+                    break;
+                }
+
+                out_mesh->mColors[i] = new aiColor4D[vertices.size()];
+                std::copy(colors.begin(), colors.end(), out_mesh->mColors[i]);
+            }
+
+            if (!doc.Settings().readMaterials || mindices.empty()) {
+                FBXImporter::LogError("no material assigned to mesh, setting default material");
+                out_mesh->mMaterialIndex = GetDefaultMaterial();
+            }
+            else {
+                ConvertMaterialForMesh(out_mesh, model, mesh, mindices[0]);
+            }
+
+            if (doc.Settings().readWeights && mesh.DeformerSkin() != NULL) {
+                ConvertWeights(out_mesh, model, mesh, node_global_transform, NO_MATERIAL_SEPARATION);
+            }
+
+            std::vector<aiAnimMesh*> animMeshes;
+            for (const BlendShape* blendShape : mesh.GetBlendShapes()) {
+                for (const BlendShapeChannel* blendShapeChannel : blendShape->BlendShapeChannels()) {
+                    const std::vector<const ShapeGeometry*>& shapeGeometries = blendShapeChannel->GetShapeGeometries();
+                    for (size_t i = 0; i < shapeGeometries.size(); i++) {
+                        aiAnimMesh *animMesh = aiCreateAnimMesh(out_mesh);
+                        const ShapeGeometry* shapeGeometry = shapeGeometries.at(i);
+                        const std::vector<aiVector3D>& vertices = shapeGeometry->GetVertices();
+                        const std::vector<aiVector3D>& normals = shapeGeometry->GetNormals();
+                        const std::vector<unsigned int>& indices = shapeGeometry->GetIndices();
+                        animMesh->mName.Set(FixAnimMeshName(shapeGeometry->Name()));
+                        for (size_t j = 0; j < indices.size(); j++) {
+                            unsigned int index = indices.at(j);
+                            aiVector3D vertex = vertices.at(j);
+                            aiVector3D normal = normals.at(j);
+                            unsigned int count = 0;
+                            const unsigned int* outIndices = mesh.ToOutputVertexIndex(index, count);
+                            for (unsigned int k = 0; k < count; k++) {
+                                unsigned int index = outIndices[k];
+                                animMesh->mVertices[index] += vertex;
+                                if (animMesh->mNormals != nullptr) {
+                                    animMesh->mNormals[index] += normal;
+                                    animMesh->mNormals[index].NormalizeSafe();
+                                }
+                            }
+                        }
+                        animMesh->mWeight = shapeGeometries.size() > 1 ? blendShapeChannel->DeformPercent() / 100.0f : 1.0f;
+                        animMeshes.push_back(animMesh);
+                    }
+                }
+            }
+            const size_t numAnimMeshes = animMeshes.size();
+            if (numAnimMeshes > 0) {
+                out_mesh->mNumAnimMeshes = static_cast<unsigned int>(numAnimMeshes);
+                out_mesh->mAnimMeshes = new aiAnimMesh*[numAnimMeshes];
+                for (size_t i = 0; i < numAnimMeshes; i++) {
+                    out_mesh->mAnimMeshes[i] = animMeshes.at(i);
+                }
+            }
+            return static_cast<unsigned int>(meshes.size() - 1);
+        }
+
+        std::vector<unsigned int> FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry& mesh, const Model& model,
+            const aiMatrix4x4& node_global_transform, aiNode& nd)
+        {
+            const MatIndexArray& mindices = mesh.GetMaterialIndices();
+            ai_assert(mindices.size());
+
+            std::set<MatIndexArray::value_type> had;
+            std::vector<unsigned int> indices;
+
+            for (MatIndexArray::value_type index : mindices) {
+                if (had.find(index) == had.end()) {
+
+                    indices.push_back(ConvertMeshMultiMaterial(mesh, model, index, node_global_transform, nd));
+                    had.insert(index);
+                }
+            }
+
+            return indices;
+        }
+
+        unsigned int FBXConverter::ConvertMeshMultiMaterial(const MeshGeometry& mesh, const Model& model,
+            MatIndexArray::value_type index,
+            const aiMatrix4x4& node_global_transform,
+            aiNode& nd)
+        {
+            aiMesh* const out_mesh = SetupEmptyMesh(mesh, nd);
+
+            const MatIndexArray& mindices = mesh.GetMaterialIndices();
+            const std::vector<aiVector3D>& vertices = mesh.GetVertices();
+            const std::vector<unsigned int>& faces = mesh.GetFaceIndexCounts();
+
+            const bool process_weights = doc.Settings().readWeights && mesh.DeformerSkin() != NULL;
+
+            unsigned int count_faces = 0;
+            unsigned int count_vertices = 0;
+
+            // count faces
+            std::vector<unsigned int>::const_iterator itf = faces.begin();
+            for (MatIndexArray::const_iterator it = mindices.begin(),
+                end = mindices.end(); it != end; ++it, ++itf)
+            {
+                if ((*it) != index) {
+                    continue;
+                }
+                ++count_faces;
+                count_vertices += *itf;
+            }
+
+            ai_assert(count_faces);
+            ai_assert(count_vertices);
+
+            // mapping from output indices to DOM indexing, needed to resolve weights
+            std::vector<unsigned int> reverseMapping;
+
+            if (process_weights) {
+                reverseMapping.resize(count_vertices);
+            }
+
+            // allocate output data arrays, but don't fill them yet
+            out_mesh->mNumVertices = count_vertices;
+            out_mesh->mVertices = new aiVector3D[count_vertices];
+
+            out_mesh->mNumFaces = count_faces;
+            aiFace* fac = out_mesh->mFaces = new aiFace[count_faces]();
+
+
+            // allocate normals
+            const std::vector<aiVector3D>& normals = mesh.GetNormals();
+            if (normals.size()) {
+                ai_assert(normals.size() == vertices.size());
+                out_mesh->mNormals = new aiVector3D[vertices.size()];
+            }
+
+            // allocate tangents, binormals.
+            const std::vector<aiVector3D>& tangents = mesh.GetTangents();
+            const std::vector<aiVector3D>* binormals = &mesh.GetBinormals();
+            std::vector<aiVector3D> tempBinormals;
+
+            if (tangents.size()) {
+                if (!binormals->size()) {
+                    if (normals.size()) {
+                        // XXX this computes the binormals for the entire mesh, not only
+                        // the part for which we need them.
+                        tempBinormals.resize(normals.size());
+                        for (unsigned int i = 0; i < tangents.size(); ++i) {
+                            tempBinormals[i] = normals[i] ^ tangents[i];
+                        }
+
+                        binormals = &tempBinormals;
+                    }
+                    else {
+                        binormals = NULL;
+                    }
+                }
+
+                if (binormals) {
+                    ai_assert(tangents.size() == vertices.size() && binormals->size() == vertices.size());
+
+                    out_mesh->mTangents = new aiVector3D[vertices.size()];
+                    out_mesh->mBitangents = new aiVector3D[vertices.size()];
+                }
+            }
+
+            // allocate texture coords
+            unsigned int num_uvs = 0;
+            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i, ++num_uvs) {
+                const std::vector<aiVector2D>& uvs = mesh.GetTextureCoords(i);
+                if (uvs.empty()) {
+                    break;
+                }
+
+                out_mesh->mTextureCoords[i] = new aiVector3D[vertices.size()];
+                out_mesh->mNumUVComponents[i] = 2;
+            }
+
+            // allocate vertex colors
+            unsigned int num_vcs = 0;
+            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i, ++num_vcs) {
+                const std::vector<aiColor4D>& colors = mesh.GetVertexColors(i);
+                if (colors.empty()) {
+                    break;
+                }
+
+                out_mesh->mColors[i] = new aiColor4D[vertices.size()];
+            }
+
+            unsigned int cursor = 0, in_cursor = 0;
+
+            itf = faces.begin();
+            for (MatIndexArray::const_iterator it = mindices.begin(), end = mindices.end(); it != end; ++it, ++itf)
+            {
+                const unsigned int pcount = *itf;
+                if ((*it) != index) {
+                    in_cursor += pcount;
+                    continue;
+                }
+
+                aiFace& f = *fac++;
+
+                f.mNumIndices = pcount;
+                f.mIndices = new unsigned int[pcount];
+                switch (pcount)
+                {
+                case 1:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
+                    break;
+                case 2:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+                    break;
+                case 3:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+                    break;
+                default:
+                    out_mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+                    break;
+                }
+                for (unsigned int i = 0; i < pcount; ++i, ++cursor, ++in_cursor) {
+                    f.mIndices[i] = cursor;
+
+                    if (reverseMapping.size()) {
+                        reverseMapping[cursor] = in_cursor;
+                    }
+
+                    out_mesh->mVertices[cursor] = vertices[in_cursor];
+
+                    if (out_mesh->mNormals) {
+                        out_mesh->mNormals[cursor] = normals[in_cursor];
+                    }
+
+                    if (out_mesh->mTangents) {
+                        out_mesh->mTangents[cursor] = tangents[in_cursor];
+                        out_mesh->mBitangents[cursor] = (*binormals)[in_cursor];
+                    }
+
+                    for (unsigned int j = 0; j < num_uvs; ++j) {
+                        const std::vector<aiVector2D>& uvs = mesh.GetTextureCoords(j);
+                        out_mesh->mTextureCoords[j][cursor] = aiVector3D(uvs[in_cursor].x, uvs[in_cursor].y, 0.0f);
+                    }
+
+                    for (unsigned int j = 0; j < num_vcs; ++j) {
+                        const std::vector<aiColor4D>& cols = mesh.GetVertexColors(j);
+                        out_mesh->mColors[j][cursor] = cols[in_cursor];
+                    }
+                }
+            }
+
+            ConvertMaterialForMesh(out_mesh, model, mesh, index);
+
+            if (process_weights) {
+                ConvertWeights(out_mesh, model, mesh, node_global_transform, index, &reverseMapping);
+            }
+
+            return static_cast<unsigned int>(meshes.size() - 1);
+        }
+
+        void FBXConverter::ConvertWeights(aiMesh* out, const Model& model, const MeshGeometry& geo,
+            const aiMatrix4x4& node_global_transform,
+            unsigned int materialIndex,
+            std::vector<unsigned int>* outputVertStartIndices)
+        {
+            ai_assert(geo.DeformerSkin());
+
+            std::vector<size_t> out_indices;
+            std::vector<size_t> index_out_indices;
+            std::vector<size_t> count_out_indices;
+
+            const Skin& sk = *geo.DeformerSkin();
+
+            std::vector<aiBone*> bones;
+            bones.reserve(sk.Clusters().size());
+
+            const bool no_mat_check = materialIndex == NO_MATERIAL_SEPARATION;
+            ai_assert(no_mat_check || outputVertStartIndices);
+
+            try {
+
+                for (const Cluster* cluster : sk.Clusters()) {
+                    ai_assert(cluster);
+
+                    const WeightIndexArray& indices = cluster->GetIndices();
+
+                    if (indices.empty()) {
+                        continue;
+                    }
+
+                    const MatIndexArray& mats = geo.GetMaterialIndices();
+
+                    bool ok = false;
+
+                    const size_t no_index_sentinel = std::numeric_limits<size_t>::max();
+
+                    count_out_indices.clear();
+                    index_out_indices.clear();
+                    out_indices.clear();
+
+                    // now check if *any* of these weights is contained in the output mesh,
+                    // taking notes so we don't need to do it twice.
+                    for (WeightIndexArray::value_type index : indices) {
+
+                        unsigned int count = 0;
+                        const unsigned int* const out_idx = geo.ToOutputVertexIndex(index, count);
+                        // ToOutputVertexIndex only returns NULL if index is out of bounds
+                        // which should never happen
+                        ai_assert(out_idx != NULL);
+
+                        index_out_indices.push_back(no_index_sentinel);
+                        count_out_indices.push_back(0);
+
+                        for (unsigned int i = 0; i < count; ++i) {
+                            if (no_mat_check || static_cast<size_t>(mats[geo.FaceForVertexIndex(out_idx[i])]) == materialIndex) {
+
+                                if (index_out_indices.back() == no_index_sentinel) {
+                                    index_out_indices.back() = out_indices.size();
+
+                                }
+
+                                if (no_mat_check) {
+                                    out_indices.push_back(out_idx[i]);
+                                }
+                                else {
+                                    // this extra lookup is in O(logn), so the entire algorithm becomes O(nlogn)
+                                    const std::vector<unsigned int>::iterator it = std::lower_bound(
+                                        outputVertStartIndices->begin(),
+                                        outputVertStartIndices->end(),
+                                        out_idx[i]
+                                    );
+
+                                    out_indices.push_back(std::distance(outputVertStartIndices->begin(), it));
+                                }
+
+                                ++count_out_indices.back();
+                                ok = true;
+                            }
+                        }
+                    }
+
+                    // if we found at least one, generate the output bones
+                    // XXX this could be heavily simplified by collecting the bone
+                    // data in a single step.
+                    if (ok) {
+                        ConvertCluster(bones, model, *cluster, out_indices, index_out_indices,
+                            count_out_indices, node_global_transform);
+                    }
+                }
+            }
+            catch (std::exception&) {
+                std::for_each(bones.begin(), bones.end(), Util::delete_fun<aiBone>());
+                throw;
+            }
+
+            if (bones.empty()) {
+                return;
+            }
+
+            out->mBones = new aiBone*[bones.size()]();
+            out->mNumBones = static_cast<unsigned int>(bones.size());
+
+            std::swap_ranges(bones.begin(), bones.end(), out->mBones);
+        }
+
+        void FBXConverter::ConvertCluster(std::vector<aiBone*>& bones, const Model& /*model*/, const Cluster& cl,
+            std::vector<size_t>& out_indices,
+            std::vector<size_t>& index_out_indices,
+            std::vector<size_t>& count_out_indices,
+            const aiMatrix4x4& node_global_transform)
+        {
+
+            aiBone* const bone = new aiBone();
+            bones.push_back(bone);
+
+            bone->mName = FixNodeName(cl.TargetNode()->Name());
+
+            bone->mOffsetMatrix = cl.TransformLink();
+            bone->mOffsetMatrix.Inverse();
+
+            bone->mOffsetMatrix = bone->mOffsetMatrix * node_global_transform;
+
+            bone->mNumWeights = static_cast<unsigned int>(out_indices.size());
+            aiVertexWeight* cursor = bone->mWeights = new aiVertexWeight[out_indices.size()];
+
+            const size_t no_index_sentinel = std::numeric_limits<size_t>::max();
+            const WeightArray& weights = cl.GetWeights();
+
+            const size_t c = index_out_indices.size();
+            for (size_t i = 0; i < c; ++i) {
+                const size_t index_index = index_out_indices[i];
+
+                if (index_index == no_index_sentinel) {
+                    continue;
+                }
+
+                const size_t cc = count_out_indices[i];
+                for (size_t j = 0; j < cc; ++j) {
+                    aiVertexWeight& out_weight = *cursor++;
+
+                    out_weight.mVertexId = static_cast<unsigned int>(out_indices[index_index + j]);
+                    out_weight.mWeight = weights[i];
+                }
+            }
+        }
+
+        void FBXConverter::ConvertMaterialForMesh(aiMesh* out, const Model& model, const MeshGeometry& geo,
+            MatIndexArray::value_type materialIndex)
+        {
+            // locate source materials for this mesh
+            const std::vector<const Material*>& mats = model.GetMaterials();
+            if (static_cast<unsigned int>(materialIndex) >= mats.size() || materialIndex < 0) {
+                FBXImporter::LogError("material index out of bounds, setting default material");
+                out->mMaterialIndex = GetDefaultMaterial();
+                return;
+            }
+
+            const Material* const mat = mats[materialIndex];
+            MaterialMap::const_iterator it = materials_converted.find(mat);
+            if (it != materials_converted.end()) {
+                out->mMaterialIndex = (*it).second;
+                return;
+            }
+
+            out->mMaterialIndex = ConvertMaterial(*mat, &geo);
+            materials_converted[mat] = out->mMaterialIndex;
+        }
+
+        unsigned int FBXConverter::GetDefaultMaterial()
+        {
+            if (defaultMaterialIndex) {
+                return defaultMaterialIndex - 1;
+            }
+
+            aiMaterial* out_mat = new aiMaterial();
+            materials.push_back(out_mat);
+
+            const aiColor3D diffuse = aiColor3D(0.8f, 0.8f, 0.8f);
+            out_mat->AddProperty(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
+
+            aiString s;
+            s.Set(AI_DEFAULT_MATERIAL_NAME);
+
+            out_mat->AddProperty(&s, AI_MATKEY_NAME);
+
+            defaultMaterialIndex = static_cast<unsigned int>(materials.size());
+            return defaultMaterialIndex - 1;
+        }
+
+
+        unsigned int FBXConverter::ConvertMaterial(const Material& material, const MeshGeometry* const mesh)
+        {
+            const PropertyTable& props = material.Props();
+
+            // generate empty output material
+            aiMaterial* out_mat = new aiMaterial();
+            materials_converted[&material] = static_cast<unsigned int>(materials.size());
+
+            materials.push_back(out_mat);
+
+            aiString str;
+
+            // strip Material:: prefix
+            std::string name = material.Name();
+            if (name.substr(0, 10) == "Material::") {
+                name = name.substr(10);
+            }
+
+            // set material name if not empty - this could happen
+            // and there should be no key for it in this case.
+            if (name.length()) {
+                str.Set(name);
+                out_mat->AddProperty(&str, AI_MATKEY_NAME);
+            }
+
+            // shading stuff and colors
+            SetShadingPropertiesCommon(out_mat, props);
+            SetShadingPropertiesRaw( out_mat, props, material.Textures(), mesh );
+
+            // texture assignments
+            SetTextureProperties(out_mat, material.Textures(), mesh);
+            SetTextureProperties(out_mat, material.LayeredTextures(), mesh);
+
+            return static_cast<unsigned int>(materials.size() - 1);
+        }
+
+        unsigned int FBXConverter::ConvertVideo(const Video& video)
+        {
+            // generate empty output texture
+            aiTexture* out_tex = new aiTexture();
+            textures.push_back(out_tex);
+
+            // assuming the texture is compressed
+            out_tex->mWidth = static_cast<unsigned int>(video.ContentLength()); // total data size
+            out_tex->mHeight = 0; // fixed to 0
+
+            // steal the data from the Video to avoid an additional copy
+            out_tex->pcData = reinterpret_cast<aiTexel*>(const_cast<Video&>(video).RelinquishContent());
+
+            // try to extract a hint from the file extension
+            const std::string& filename = video.FileName().empty() ? video.RelativeFilename() : video.FileName();
+            std::string ext = BaseImporter::GetExtension(filename);
+
+            if (ext == "jpeg") {
+                ext = "jpg";
+            }
+
+            if (ext.size() <= 3) {
+                memcpy(out_tex->achFormatHint, ext.c_str(), ext.size());
+            }
+
+            out_tex->mFilename.Set(video.FileName().c_str());
+
+            return static_cast<unsigned int>(textures.size() - 1);
+        }
+
+        aiString FBXConverter::GetTexturePath(const Texture* tex)
+        {
+            aiString path;
+            path.Set(tex->RelativeFilename());
+
+            const Video* media = tex->Media();
+            if (media != nullptr) {
+                bool textureReady = false; //tells if our texture is ready (if it was loaded or if it was found)
+                unsigned int index;
+
+                VideoMap::const_iterator it = textures_converted.find(media);
+                if (it != textures_converted.end()) {
+                    index = (*it).second;
+                    textureReady = true;
+                }
+                else {
+                    if (media->ContentLength() > 0) {
+                        index = ConvertVideo(*media);
+                        textures_converted[media] = index;
+                        textureReady = true;
+                    }
+                }
+
+                // setup texture reference string (copied from ColladaLoader::FindFilenameForEffectTexture), if the texture is ready
+                if (doc.Settings().useLegacyEmbeddedTextureNaming) {
+                    if (textureReady) {
+                        // TODO: check the possibility of using the flag "AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING"
+                        // In FBX files textures are now stored internally by Assimp with their filename included
+                        // Now Assimp can lookup through the loaded textures after all data is processed
+                        // We need to load all textures before referencing them, as FBX file format order may reference a texture before loading it
+                        // This may occur on this case too, it has to be studied
+                        path.data[0] = '*';
+                        path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index);
+                    }
+                }
+            }
+
+            return path;
+        }
+
+        void FBXConverter::TrySetTextureProperties(aiMaterial* out_mat, const TextureMap& textures,
+            const std::string& propName,
+            aiTextureType target, const MeshGeometry* const mesh)
+        {
+            TextureMap::const_iterator it = textures.find(propName);
+            if (it == textures.end()) {
+                return;
+            }
+
+            const Texture* const tex = (*it).second;
+            if (tex != 0)
+            {
+                aiString path = GetTexturePath(tex);
+                out_mat->AddProperty(&path, _AI_MATKEY_TEXTURE_BASE, target, 0);
+
+                aiUVTransform uvTrafo;
+                // XXX handle all kinds of UV transformations
+                uvTrafo.mScaling = tex->UVScaling();
+                uvTrafo.mTranslation = tex->UVTranslation();
+                out_mat->AddProperty(&uvTrafo, 1, _AI_MATKEY_UVTRANSFORM_BASE, target, 0);
+
+                const PropertyTable& props = tex->Props();
+
+                int uvIndex = 0;
+
+                bool ok;
+                const std::string& uvSet = PropertyGet<std::string>(props, "UVSet", ok);
+                if (ok) {
+                    // "default" is the name which usually appears in the FbxFileTexture template
+                    if (uvSet != "default" && uvSet.length()) {
+                        // this is a bit awkward - we need to find a mesh that uses this
+                        // material and scan its UV channels for the given UV name because
+                        // assimp references UV channels by index, not by name.
+
+                        // XXX: the case that UV channels may appear in different orders
+                        // in meshes is unhandled. A possible solution would be to sort
+                        // the UV channels alphabetically, but this would have the side
+                        // effect that the primary (first) UV channel would sometimes
+                        // be moved, causing trouble when users read only the first
+                        // UV channel and ignore UV channel assignments altogether.
+
+                        const unsigned int matIndex = static_cast<unsigned int>(std::distance(materials.begin(),
+                            std::find(materials.begin(), materials.end(), out_mat)
+                        ));
+
+
+                        uvIndex = -1;
+                        if (!mesh)
+                        {
+                            for (const MeshMap::value_type& v : meshes_converted) {
+                                const MeshGeometry* const meshGeom = dynamic_cast<const MeshGeometry*> (v.first);
+                                if (!meshGeom) {
+                                    continue;
+                                }
+
+                                const MatIndexArray& mats = meshGeom->GetMaterialIndices();
+                                if (std::find(mats.begin(), mats.end(), matIndex) == mats.end()) {
+                                    continue;
+                                }
+
+                                int index = -1;
+                                for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                    if (meshGeom->GetTextureCoords(i).empty()) {
+                                        break;
+                                    }
+                                    const std::string& name = meshGeom->GetTextureCoordChannelName(i);
+                                    if (name == uvSet) {
+                                        index = static_cast<int>(i);
+                                        break;
+                                    }
+                                }
+                                if (index == -1) {
+                                    FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                                    continue;
+                                }
+
+                                if (uvIndex == -1) {
+                                    uvIndex = index;
+                                }
+                                else {
+                                    FBXImporter::LogWarn("the UV channel named " + uvSet +
+                                        " appears at different positions in meshes, results will be wrong");
+                                }
+                            }
+                        }
+                        else
+                        {
+                            int index = -1;
+                            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                if (mesh->GetTextureCoords(i).empty()) {
+                                    break;
+                                }
+                                const std::string& name = mesh->GetTextureCoordChannelName(i);
+                                if (name == uvSet) {
+                                    index = static_cast<int>(i);
+                                    break;
+                                }
+                            }
+                            if (index == -1) {
+                                FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                            }
+
+                            if (uvIndex == -1) {
+                                uvIndex = index;
+                            }
+                        }
+
+                        if (uvIndex == -1) {
+                            FBXImporter::LogWarn("failed to resolve UV channel " + uvSet + ", using first UV channel");
+                            uvIndex = 0;
+                        }
+                    }
+                }
+
+                out_mat->AddProperty(&uvIndex, 1, _AI_MATKEY_UVWSRC_BASE, target, 0);
+            }
+        }
+
+        void FBXConverter::TrySetTextureProperties(aiMaterial* out_mat, const LayeredTextureMap& layeredTextures,
+            const std::string& propName,
+            aiTextureType target, const MeshGeometry* const mesh) {
+            LayeredTextureMap::const_iterator it = layeredTextures.find(propName);
+            if (it == layeredTextures.end()) {
+                return;
+            }
+
+            int texCount = (*it).second->textureCount();
+
+            // Set the blend mode for layered textures
+            int blendmode = (*it).second->GetBlendMode();
+            out_mat->AddProperty(&blendmode, 1, _AI_MATKEY_TEXOP_BASE, target, 0);
+
+            for (int texIndex = 0; texIndex < texCount; texIndex++) {
+
+                const Texture* const tex = (*it).second->getTexture(texIndex);
+
+                aiString path = GetTexturePath(tex);
+                out_mat->AddProperty(&path, _AI_MATKEY_TEXTURE_BASE, target, texIndex);
+
+                aiUVTransform uvTrafo;
+                // XXX handle all kinds of UV transformations
+                uvTrafo.mScaling = tex->UVScaling();
+                uvTrafo.mTranslation = tex->UVTranslation();
+                out_mat->AddProperty(&uvTrafo, 1, _AI_MATKEY_UVTRANSFORM_BASE, target, texIndex);
+
+                const PropertyTable& props = tex->Props();
+
+                int uvIndex = 0;
+
+                bool ok;
+                const std::string& uvSet = PropertyGet<std::string>(props, "UVSet", ok);
+                if (ok) {
+                    // "default" is the name which usually appears in the FbxFileTexture template
+                    if (uvSet != "default" && uvSet.length()) {
+                        // this is a bit awkward - we need to find a mesh that uses this
+                        // material and scan its UV channels for the given UV name because
+                        // assimp references UV channels by index, not by name.
+
+                        // XXX: the case that UV channels may appear in different orders
+                        // in meshes is unhandled. A possible solution would be to sort
+                        // the UV channels alphabetically, but this would have the side
+                        // effect that the primary (first) UV channel would sometimes
+                        // be moved, causing trouble when users read only the first
+                        // UV channel and ignore UV channel assignments altogether.
+
+                        const unsigned int matIndex = static_cast<unsigned int>(std::distance(materials.begin(),
+                            std::find(materials.begin(), materials.end(), out_mat)
+                        ));
+
+                        uvIndex = -1;
+                        if (!mesh)
+                        {
+                            for (const MeshMap::value_type& v : meshes_converted) {
+                                const MeshGeometry* const meshGeom = dynamic_cast<const MeshGeometry*> (v.first);
+                                if (!meshGeom) {
+                                    continue;
+                                }
+
+                                const MatIndexArray& mats = meshGeom->GetMaterialIndices();
+                                if (std::find(mats.begin(), mats.end(), matIndex) == mats.end()) {
+                                    continue;
+                                }
+
+                                int index = -1;
+                                for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                    if (meshGeom->GetTextureCoords(i).empty()) {
+                                        break;
+                                    }
+                                    const std::string& name = meshGeom->GetTextureCoordChannelName(i);
+                                    if (name == uvSet) {
+                                        index = static_cast<int>(i);
+                                        break;
+                                    }
+                                }
+                                if (index == -1) {
+                                    FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                                    continue;
+                                }
+
+                                if (uvIndex == -1) {
+                                    uvIndex = index;
+                                }
+                                else {
+                                    FBXImporter::LogWarn("the UV channel named " + uvSet +
+                                        " appears at different positions in meshes, results will be wrong");
+                                }
+                            }
+                        }
+                        else
+                        {
+                            int index = -1;
+                            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                if (mesh->GetTextureCoords(i).empty()) {
+                                    break;
+                                }
+                                const std::string& name = mesh->GetTextureCoordChannelName(i);
+                                if (name == uvSet) {
+                                    index = static_cast<int>(i);
+                                    break;
+                                }
+                            }
+                            if (index == -1) {
+                                FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                            }
+
+                            if (uvIndex == -1) {
+                                uvIndex = index;
+                            }
+                        }
+
+                        if (uvIndex == -1) {
+                            FBXImporter::LogWarn("failed to resolve UV channel " + uvSet + ", using first UV channel");
+                            uvIndex = 0;
+                        }
+                    }
+                }
+
+                out_mat->AddProperty(&uvIndex, 1, _AI_MATKEY_UVWSRC_BASE, target, texIndex);
+            }
+        }
+
+        void FBXConverter::SetTextureProperties(aiMaterial* out_mat, const TextureMap& textures, const MeshGeometry* const mesh)
+        {
+            TrySetTextureProperties(out_mat, textures, "DiffuseColor", aiTextureType_DIFFUSE, mesh);
+            TrySetTextureProperties(out_mat, textures, "AmbientColor", aiTextureType_AMBIENT, mesh);
+            TrySetTextureProperties(out_mat, textures, "EmissiveColor", aiTextureType_EMISSIVE, mesh);
+            TrySetTextureProperties(out_mat, textures, "SpecularColor", aiTextureType_SPECULAR, mesh);
+            TrySetTextureProperties(out_mat, textures, "SpecularFactor", aiTextureType_SPECULAR, mesh);
+            TrySetTextureProperties(out_mat, textures, "TransparentColor", aiTextureType_OPACITY, mesh);
+            TrySetTextureProperties(out_mat, textures, "ReflectionColor", aiTextureType_REFLECTION, mesh);
+            TrySetTextureProperties(out_mat, textures, "DisplacementColor", aiTextureType_DISPLACEMENT, mesh);
+            TrySetTextureProperties(out_mat, textures, "NormalMap", aiTextureType_NORMALS, mesh);
+            TrySetTextureProperties(out_mat, textures, "Bump", aiTextureType_HEIGHT, mesh);
+            TrySetTextureProperties(out_mat, textures, "ShininessExponent", aiTextureType_SHININESS, mesh);
+			TrySetTextureProperties( out_mat, textures, "TransparencyFactor", aiTextureType_OPACITY, mesh );
+			TrySetTextureProperties( out_mat, textures, "EmissiveFactor", aiTextureType_EMISSIVE, mesh );
+            //Maya counterparts
+            TrySetTextureProperties(out_mat, textures, "Maya|DiffuseTexture", aiTextureType_DIFFUSE, mesh);
+            TrySetTextureProperties(out_mat, textures, "Maya|NormalTexture", aiTextureType_NORMALS, mesh);
+            TrySetTextureProperties(out_mat, textures, "Maya|SpecularTexture", aiTextureType_SPECULAR, mesh);
+            TrySetTextureProperties(out_mat, textures, "Maya|FalloffTexture", aiTextureType_OPACITY, mesh);
+            TrySetTextureProperties(out_mat, textures, "Maya|ReflectionMapTexture", aiTextureType_REFLECTION, mesh);
+        }
+
+        void FBXConverter::SetTextureProperties(aiMaterial* out_mat, const LayeredTextureMap& layeredTextures, const MeshGeometry* const mesh)
+        {
+            TrySetTextureProperties(out_mat, layeredTextures, "DiffuseColor", aiTextureType_DIFFUSE, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "AmbientColor", aiTextureType_AMBIENT, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "EmissiveColor", aiTextureType_EMISSIVE, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "SpecularColor", aiTextureType_SPECULAR, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "SpecularFactor", aiTextureType_SPECULAR, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "TransparentColor", aiTextureType_OPACITY, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "ReflectionColor", aiTextureType_REFLECTION, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "DisplacementColor", aiTextureType_DISPLACEMENT, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "NormalMap", aiTextureType_NORMALS, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "Bump", aiTextureType_HEIGHT, mesh);
+            TrySetTextureProperties(out_mat, layeredTextures, "ShininessExponent", aiTextureType_SHININESS, mesh);
+			TrySetTextureProperties( out_mat, layeredTextures, "EmissiveFactor", aiTextureType_EMISSIVE, mesh );
+			TrySetTextureProperties( out_mat, layeredTextures, "TransparencyFactor", aiTextureType_OPACITY, mesh );
+        }
+
+        aiColor3D FBXConverter::GetColorPropertyFactored(const PropertyTable& props, const std::string& colorName,
+            const std::string& factorName, bool& result, bool useTemplate)
+        {
+            result = true;
+
+            bool ok;
+            aiVector3D BaseColor = PropertyGet<aiVector3D>(props, colorName, ok, useTemplate);
+            if (!ok) {
+                result = false;
+                return aiColor3D(0.0f, 0.0f, 0.0f);
+            }
+
+            // if no factor name, return the colour as is
+            if (factorName.empty()) {
+                return aiColor3D(BaseColor.x, BaseColor.y, BaseColor.z);
+            }
+
+            // otherwise it should be multiplied by the factor, if found.
+            float factor = PropertyGet<float>(props, factorName, ok, useTemplate);
+            if (ok) {
+                BaseColor *= factor;
+            }
+            return aiColor3D(BaseColor.x, BaseColor.y, BaseColor.z);
+        }
+
+        aiColor3D FBXConverter::GetColorPropertyFromMaterial(const PropertyTable& props, const std::string& baseName,
+            bool& result)
+        {
+            return GetColorPropertyFactored(props, baseName + "Color", baseName + "Factor", result, true);
+        }
+
+        aiColor3D FBXConverter::GetColorProperty(const PropertyTable& props, const std::string& colorName,
+            bool& result, bool useTemplate)
+        {
+            result = true;
+            bool ok;
+            const aiVector3D& ColorVec = PropertyGet<aiVector3D>(props, colorName, ok, useTemplate);
+            if (!ok) {
+                result = false;
+                return aiColor3D(0.0f, 0.0f, 0.0f);
+            }
+            return aiColor3D(ColorVec.x, ColorVec.y, ColorVec.z);
+        }
+
+        void FBXConverter::SetShadingPropertiesCommon(aiMaterial* out_mat, const PropertyTable& props)
+        {
+            // Set shading properties.
+            // Modern FBX Files have two separate systems for defining these,
+            // with only the more comprehensive one described in the property template.
+            // Likely the other values are a legacy system,
+            // which is still always exported by the official FBX SDK.
+            //
+            // Blender's FBX import and export mostly ignore this legacy system,
+            // and as we only support recent versions of FBX anyway, we can do the same.
+            bool ok;
+
+            const aiColor3D& Diffuse = GetColorPropertyFromMaterial(props, "Diffuse", ok);
+            if (ok) {
+                out_mat->AddProperty(&Diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
+            }
+
+            const aiColor3D& Emissive = GetColorPropertyFromMaterial(props, "Emissive", ok);
+            if (ok) {
+                out_mat->AddProperty(&Emissive, 1, AI_MATKEY_COLOR_EMISSIVE);
+            }
+
+            const aiColor3D& Ambient = GetColorPropertyFromMaterial(props, "Ambient", ok);
+            if (ok) {
+                out_mat->AddProperty(&Ambient, 1, AI_MATKEY_COLOR_AMBIENT);
+            }
+
+            // we store specular factor as SHININESS_STRENGTH, so just get the color
+            const aiColor3D& Specular = GetColorProperty(props, "SpecularColor", ok, true);
+            if (ok) {
+                out_mat->AddProperty(&Specular, 1, AI_MATKEY_COLOR_SPECULAR);
+            }
+
+            // and also try to get SHININESS_STRENGTH
+            const float SpecularFactor = PropertyGet<float>(props, "SpecularFactor", ok, true);
+            if (ok) {
+                out_mat->AddProperty(&SpecularFactor, 1, AI_MATKEY_SHININESS_STRENGTH);
+            }
+
+            // and the specular exponent
+            const float ShininessExponent = PropertyGet<float>(props, "ShininessExponent", ok);
+            if (ok) {
+                out_mat->AddProperty(&ShininessExponent, 1, AI_MATKEY_SHININESS);
+            }
+
+            // TransparentColor / TransparencyFactor... gee thanks FBX :rolleyes:
+            const aiColor3D& Transparent = GetColorPropertyFactored(props, "TransparentColor", "TransparencyFactor", ok);
+            float CalculatedOpacity = 1.0f;
+            if (ok) {
+                out_mat->AddProperty(&Transparent, 1, AI_MATKEY_COLOR_TRANSPARENT);
+                // as calculated by FBX SDK 2017:
+                CalculatedOpacity = 1.0f - ((Transparent.r + Transparent.g + Transparent.b) / 3.0f);
+            }
+
+            // try to get the transparency factor
+            const float TransparencyFactor = PropertyGet<float>(props, "TransparencyFactor", ok);
+            if (ok) {
+                out_mat->AddProperty(&TransparencyFactor, 1, AI_MATKEY_TRANSPARENCYFACTOR);
+            }
+
+            // use of TransparencyFactor is inconsistent.
+            // Maya always stores it as 1.0,
+            // so we can't use it to set AI_MATKEY_OPACITY.
+            // Blender is more sensible and stores it as the alpha value.
+            // However both the FBX SDK and Blender always write an additional
+            // legacy "Opacity" field, so we can try to use that.
+            //
+            // If we can't find it,
+            // we can fall back to the value which the FBX SDK calculates
+            // from transparency colour (RGB) and factor (F) as
+            // 1.0 - F*((R+G+B)/3).
+            //
+            // There's no consistent way to interpret this opacity value,
+            // so it's up to clients to do the correct thing.
+            const float Opacity = PropertyGet<float>(props, "Opacity", ok);
+            if (ok) {
+                out_mat->AddProperty(&Opacity, 1, AI_MATKEY_OPACITY);
+            }
+            else if (CalculatedOpacity != 1.0) {
+                out_mat->AddProperty(&CalculatedOpacity, 1, AI_MATKEY_OPACITY);
+            }
+
+            // reflection color and factor are stored separately
+            const aiColor3D& Reflection = GetColorProperty(props, "ReflectionColor", ok, true);
+            if (ok) {
+                out_mat->AddProperty(&Reflection, 1, AI_MATKEY_COLOR_REFLECTIVE);
+            }
+
+            float ReflectionFactor = PropertyGet<float>(props, "ReflectionFactor", ok, true);
+            if (ok) {
+                out_mat->AddProperty(&ReflectionFactor, 1, AI_MATKEY_REFLECTIVITY);
+            }
+
+            const float BumpFactor = PropertyGet<float>(props, "BumpFactor", ok);
+            if (ok) {
+                out_mat->AddProperty(&BumpFactor, 1, AI_MATKEY_BUMPSCALING);
+            }
+
+            const float DispFactor = PropertyGet<float>(props, "DisplacementFactor", ok);
+            if (ok) {
+                out_mat->AddProperty(&DispFactor, 1, "$mat.displacementscaling", 0, 0);
+    }
+}
+
+
+void FBXConverter::SetShadingPropertiesRaw(aiMaterial* out_mat, const PropertyTable& props, const TextureMap& textures, const MeshGeometry* const mesh)
+{
+    // Add all the unparsed properties with a "$raw." prefix
+
+    const std::string prefix = "$raw.";
+
+    for (const DirectPropertyMap::value_type& prop : props.GetUnparsedProperties()) {
+
+        std::string name = prefix + prop.first;
+
+        if (const TypedProperty<aiVector3D>* interpreted = prop.second->As<TypedProperty<aiVector3D> >())
+        {
+            out_mat->AddProperty(&interpreted->Value(), 1, name.c_str(), 0, 0);
+        }
+        else if (const TypedProperty<aiColor3D>* interpreted = prop.second->As<TypedProperty<aiColor3D> >())
+        {
+            out_mat->AddProperty(&interpreted->Value(), 1, name.c_str(), 0, 0);
+        }
+        else if (const TypedProperty<aiColor4D>* interpreted = prop.second->As<TypedProperty<aiColor4D> >())
+        {
+            out_mat->AddProperty(&interpreted->Value(), 1, name.c_str(), 0, 0);
+        }
+        else if (const TypedProperty<float>* interpreted = prop.second->As<TypedProperty<float> >())
+        {
+            out_mat->AddProperty(&interpreted->Value(), 1, name.c_str(), 0, 0);
+        }
+        else if (const TypedProperty<int>* interpreted = prop.second->As<TypedProperty<int> >())
+        {
+            out_mat->AddProperty(&interpreted->Value(), 1, name.c_str(), 0, 0);
+        }
+        else if (const TypedProperty<bool>* interpreted = prop.second->As<TypedProperty<bool> >())
+        {
+            int value = interpreted->Value() ? 1 : 0;
+            out_mat->AddProperty(&value, 1, name.c_str(), 0, 0);
+        }
+        else if (const TypedProperty<std::string>* interpreted = prop.second->As<TypedProperty<std::string> >())
+        {
+            const aiString value = aiString(interpreted->Value());
+            out_mat->AddProperty(&value, name.c_str(), 0, 0);
+        }
+    }
+
+    // Add the textures' properties
+
+    for (TextureMap::const_iterator it = textures.begin(); it != textures.end(); it++) {
+
+        std::string name = prefix + it->first;
+
+        const Texture* const tex = (*it).second;
+        if (tex != nullptr)
+        {
+            aiString path;
+            path.Set(tex->RelativeFilename());
+
+            const Video* media = tex->Media();
+            if (media != nullptr && media->ContentLength() > 0) {
+                unsigned int index;
+
+                VideoMap::const_iterator it = textures_converted.find(media);
+                if (it != textures_converted.end()) {
+                    index = (*it).second;
+                }
+                else {
+                    index = ConvertVideo(*media);
+                    textures_converted[media] = index;
+                }
+
+                // setup texture reference string (copied from ColladaLoader::FindFilenameForEffectTexture)
+                path.data[0] = '*';
+                path.length = 1 + ASSIMP_itoa10(path.data + 1, MAXLEN - 1, index);
+            }
+
+            out_mat->AddProperty(&path, (name + "|file").c_str(), aiTextureType_UNKNOWN, 0);
+
+            aiUVTransform uvTrafo;
+            // XXX handle all kinds of UV transformations
+            uvTrafo.mScaling = tex->UVScaling();
+            uvTrafo.mTranslation = tex->UVTranslation();
+            out_mat->AddProperty(&uvTrafo, 1, (name + "|uvtrafo").c_str(), aiTextureType_UNKNOWN, 0);
+ 
+            int uvIndex = 0;
+
+            bool uvFound = false;
+            const std::string& uvSet = PropertyGet<std::string>(tex->Props(), "UVSet", uvFound);
+            if (uvFound) {
+                // "default" is the name which usually appears in the FbxFileTexture template
+                if (uvSet != "default" && uvSet.length()) {
+                    // this is a bit awkward - we need to find a mesh that uses this
+                    // material and scan its UV channels for the given UV name because
+                    // assimp references UV channels by index, not by name.
+
+                    // XXX: the case that UV channels may appear in different orders
+                    // in meshes is unhandled. A possible solution would be to sort
+                    // the UV channels alphabetically, but this would have the side
+                    // effect that the primary (first) UV channel would sometimes
+                    // be moved, causing trouble when users read only the first
+                    // UV channel and ignore UV channel assignments altogether.
+
+                    std::vector<aiMaterial*>::iterator materialIt = std::find(materials.begin(), materials.end(), out_mat);
+                    const unsigned int matIndex = static_cast<unsigned int>(std::distance(materials.begin(), materialIt));
+
+                    uvIndex = -1;
+                    if (!mesh)
+                    {
+                        for (const MeshMap::value_type& v : meshes_converted) {
+                            const MeshGeometry* const meshGeom = dynamic_cast<const MeshGeometry*>(v.first);
+                            if (!meshGeom) {
+                                continue;
+                            }
+
+                            const MatIndexArray& mats = meshGeom->GetMaterialIndices();
+                            if (std::find(mats.begin(), mats.end(), matIndex) == mats.end()) {
+                                continue;
+                            }
+
+                            int index = -1;
+                            for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                                if (meshGeom->GetTextureCoords(i).empty()) {
+                                    break;
+                                }
+                                const std::string& name = meshGeom->GetTextureCoordChannelName(i);
+                                if (name == uvSet) {
+                                    index = static_cast<int>(i);
+                                    break;
+                                }
+                            }
+                            if (index == -1) {
+                                FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                                continue;
+                            }
+
+                            if (uvIndex == -1) {
+                                uvIndex = index;
+                            }
+                            else {
+                                FBXImporter::LogWarn("the UV channel named " + uvSet + " appears at different positions in meshes, results will be wrong");
+                            }
+                        }
+                    }
+                    else
+                    {
+                        int index = -1;
+                        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+                            if (mesh->GetTextureCoords(i).empty()) {
+                                break;
+                            }
+                            const std::string& name = mesh->GetTextureCoordChannelName(i);
+                            if (name == uvSet) {
+                                index = static_cast<int>(i);
+                                break;
+                            }
+                        }
+                        if (index == -1) {
+                            FBXImporter::LogWarn("did not find UV channel named " + uvSet + " in a mesh using this material");
+                        }
+
+                        if (uvIndex == -1) {
+                            uvIndex = index;
+                        }
+                    }
+
+                    if (uvIndex == -1) {
+                        FBXImporter::LogWarn("failed to resolve UV channel " + uvSet + ", using first UV channel");
+                        uvIndex = 0;
+                    }
+                }
+            }
+
+            out_mat->AddProperty(&uvIndex, 1, (name + "|uvwsrc").c_str(), aiTextureType_UNKNOWN, 0);
+        }
+            }
+        }
+
+
+        double FBXConverter::FrameRateToDouble(FileGlobalSettings::FrameRate fp, double customFPSVal) {
+            switch (fp) {
+            case FileGlobalSettings::FrameRate_DEFAULT:
+                return 1.0;
+
+            case FileGlobalSettings::FrameRate_120:
+                return 120.0;
+
+            case FileGlobalSettings::FrameRate_100:
+                return 100.0;
+
+            case FileGlobalSettings::FrameRate_60:
+                return 60.0;
+
+            case FileGlobalSettings::FrameRate_50:
+                return 50.0;
+
+            case FileGlobalSettings::FrameRate_48:
+                return 48.0;
+
+            case FileGlobalSettings::FrameRate_30:
+            case FileGlobalSettings::FrameRate_30_DROP:
+                return 30.0;
+
+            case FileGlobalSettings::FrameRate_NTSC_DROP_FRAME:
+            case FileGlobalSettings::FrameRate_NTSC_FULL_FRAME:
+                return 29.9700262;
+
+            case FileGlobalSettings::FrameRate_PAL:
+                return 25.0;
+
+            case FileGlobalSettings::FrameRate_CINEMA:
+                return 24.0;
+
+            case FileGlobalSettings::FrameRate_1000:
+                return 1000.0;
+
+            case FileGlobalSettings::FrameRate_CINEMA_ND:
+                return 23.976;
+
+            case FileGlobalSettings::FrameRate_CUSTOM:
+                return customFPSVal;
+
+            case FileGlobalSettings::FrameRate_MAX: // this is to silence compiler warnings
+                break;
+            }
+
+            ai_assert(false);
+
+            return -1.0f;
+        }
+
+
+        void FBXConverter::ConvertAnimations()
+        {
+            // first of all determine framerate
+            const FileGlobalSettings::FrameRate fps = doc.GlobalSettings().TimeMode();
+            const float custom = doc.GlobalSettings().CustomFrameRate();
+            anim_fps = FrameRateToDouble(fps, custom);
+
+            const std::vector<const AnimationStack*>& animations = doc.AnimationStacks();
+            for (const AnimationStack* stack : animations) {
+                ConvertAnimationStack(*stack);
+            }
+        }
+
+        std::string FBXConverter::FixNodeName(const std::string& name) {
+            // strip Model:: prefix, avoiding ambiguities (i.e. don't strip if
+            // this causes ambiguities, well possible between empty identifiers,
+            // such as "Model::" and ""). Make sure the behaviour is consistent
+            // across multiple calls to FixNodeName().
+            if (name.substr(0, 7) == "Model::") {
+                std::string temp = name.substr(7);
+                return temp;
+            }
+
+            return name;
+        }
+
+        std::string FBXConverter::FixAnimMeshName(const std::string& name) {
+            if (name.length()) {
+                size_t indexOf = name.find_first_of("::");
+                if (indexOf != std::string::npos && indexOf < name.size() - 2) {
+                    return name.substr(indexOf + 2);
+                }
+            }
+            return name.length() ? name : "AnimMesh";
+        }
+
+        void FBXConverter::ConvertAnimationStack(const AnimationStack& st)
+        {
+            const AnimationLayerList& layers = st.Layers();
+            if (layers.empty()) {
+                return;
+            }
+
+            aiAnimation* const anim = new aiAnimation();
+            animations.push_back(anim);
+
+            // strip AnimationStack:: prefix
+            std::string name = st.Name();
+            if (name.substr(0, 16) == "AnimationStack::") {
+                name = name.substr(16);
+            }
+            else if (name.substr(0, 11) == "AnimStack::") {
+                name = name.substr(11);
+            }
+
+            anim->mName.Set(name);
+
+            // need to find all nodes for which we need to generate node animations -
+            // it may happen that we need to merge multiple layers, though.
+            NodeMap node_map;
+
+            // reverse mapping from curves to layers, much faster than querying
+            // the FBX DOM for it.
+            LayerMap layer_map;
+
+            const char* prop_whitelist[] = {
+                "Lcl Scaling",
+                "Lcl Rotation",
+                "Lcl Translation",
+                "DeformPercent"
+            };
+
+            std::map<std::string, morphAnimData*> morphAnimDatas;
+
+            for (const AnimationLayer* layer : layers) {
+                ai_assert(layer);
+                const AnimationCurveNodeList& nodes = layer->Nodes(prop_whitelist, 4);
+                for (const AnimationCurveNode* node : nodes) {
+                    ai_assert(node);
+                    const Model* const model = dynamic_cast<const Model*>(node->Target());
+                    if (model) {
+                        const std::string& name = FixNodeName(model->Name());
+                        node_map[name].push_back(node);
+                        layer_map[node] = layer;
+                        continue;
+                    }
+                    const BlendShapeChannel* const bsc = dynamic_cast<const BlendShapeChannel*>(node->Target());
+                    if (bsc) {
+                        ProcessMorphAnimDatas(&morphAnimDatas, bsc, node);
+                    }
+                }
+            }
+
+            // generate node animations
+            std::vector<aiNodeAnim*> node_anims;
+
+            double min_time = 1e10;
+            double max_time = -1e10;
+
+            int64_t start_time = st.LocalStart();
+            int64_t stop_time = st.LocalStop();
+            bool has_local_startstop = start_time != 0 || stop_time != 0;
+            if (!has_local_startstop) {
+                // no time range given, so accept every keyframe and use the actual min/max time
+                // the numbers are INT64_MIN/MAX, the 20000 is for safety because GenerateNodeAnimations uses an epsilon of 10000
+                start_time = -9223372036854775807ll + 20000;
+                stop_time = 9223372036854775807ll - 20000;
+            }
+
+            try {
+                for (const NodeMap::value_type& kv : node_map) {
+                    GenerateNodeAnimations(node_anims,
+                        kv.first,
+                        kv.second,
+                        layer_map,
+                        start_time, stop_time,
+                        max_time,
+                        min_time);
+                }
+            }
+            catch (std::exception&) {
+                std::for_each(node_anims.begin(), node_anims.end(), Util::delete_fun<aiNodeAnim>());
+                throw;
+            }
+
+            if (node_anims.size() || morphAnimDatas.size()) {
+                if (node_anims.size()) {
+                    anim->mChannels = new aiNodeAnim*[node_anims.size()]();
+                    anim->mNumChannels = static_cast<unsigned int>(node_anims.size());
+                    std::swap_ranges(node_anims.begin(), node_anims.end(), anim->mChannels);
+                }
+                if (morphAnimDatas.size()) {
+                    unsigned int numMorphMeshChannels = static_cast<unsigned int>(morphAnimDatas.size());
+                    anim->mMorphMeshChannels = new aiMeshMorphAnim*[numMorphMeshChannels];
+                    anim->mNumMorphMeshChannels = numMorphMeshChannels;
+                    unsigned int i = 0;
+                    for (auto morphAnimIt : morphAnimDatas) {
+                        morphAnimData* animData = morphAnimIt.second;
+                        unsigned int numKeys = static_cast<unsigned int>(animData->size());
+                        aiMeshMorphAnim* meshMorphAnim = new aiMeshMorphAnim();
+                        meshMorphAnim->mName.Set(morphAnimIt.first);
+                        meshMorphAnim->mNumKeys = numKeys;
+                        meshMorphAnim->mKeys = new aiMeshMorphKey[numKeys];
+                        unsigned int j = 0;
+                        for (auto animIt : *animData) {
+                            morphKeyData* keyData = animIt.second;
+                            unsigned int numValuesAndWeights = static_cast<unsigned int>(keyData->values.size());
+                            meshMorphAnim->mKeys[j].mNumValuesAndWeights = numValuesAndWeights;
+                            meshMorphAnim->mKeys[j].mValues = new unsigned int[numValuesAndWeights];
+                            meshMorphAnim->mKeys[j].mWeights = new double[numValuesAndWeights];
+                            meshMorphAnim->mKeys[j].mTime = CONVERT_FBX_TIME(animIt.first) * anim_fps;
+                            for (unsigned int k = 0; k < numValuesAndWeights; k++) {
+                                meshMorphAnim->mKeys[j].mValues[k] = keyData->values.at(k);
+                                meshMorphAnim->mKeys[j].mWeights[k] = keyData->weights.at(k);
+                            }
+                            j++;
+                        }
+                        anim->mMorphMeshChannels[i++] = meshMorphAnim;
+                    }
+                }
+            }
+            else {
+                // empty animations would fail validation, so drop them
+                delete anim;
+                animations.pop_back();
+                FBXImporter::LogInfo("ignoring empty AnimationStack (using IK?): " + name);
+                return;
+            }
+
+            double start_time_fps = has_local_startstop ? (CONVERT_FBX_TIME(start_time) * anim_fps) : min_time;
+            double stop_time_fps = has_local_startstop ? (CONVERT_FBX_TIME(stop_time) * anim_fps) : max_time;
+
+            // adjust relative timing for animation
+            for (unsigned int c = 0; c < anim->mNumChannels; c++) {
+                aiNodeAnim* channel = anim->mChannels[c];
+                for (uint32_t i = 0; i < channel->mNumPositionKeys; i++) {
+                    channel->mPositionKeys[i].mTime -= start_time_fps;
+                }
+                for (uint32_t i = 0; i < channel->mNumRotationKeys; i++) {
+                    channel->mRotationKeys[i].mTime -= start_time_fps;
+                }
+                for (uint32_t i = 0; i < channel->mNumScalingKeys; i++) {
+                    channel->mScalingKeys[i].mTime -= start_time_fps;
+                }
+            }
+            for (unsigned int c = 0; c < anim->mNumMorphMeshChannels; c++) {
+                aiMeshMorphAnim* channel = anim->mMorphMeshChannels[c];
+                for (uint32_t i = 0; i < channel->mNumKeys; i++) {
+                    channel->mKeys[i].mTime -= start_time_fps;
+                }
+            }
+
+            // for some mysterious reason, mDuration is simply the maximum key -- the
+            // validator always assumes animations to start at zero.
+            anim->mDuration = stop_time_fps - start_time_fps;
+            anim->mTicksPerSecond = anim_fps;
+        }
+
+        // ------------------------------------------------------------------------------------------------
+        void FBXConverter::ProcessMorphAnimDatas(std::map<std::string, morphAnimData*>* morphAnimDatas, const BlendShapeChannel* bsc, const AnimationCurveNode* node) {
+            std::vector<const Connection*> bscConnections = doc.GetConnectionsBySourceSequenced(bsc->ID(), "Deformer");
+            for (const Connection* bscConnection : bscConnections) {
+                auto bs = dynamic_cast<const BlendShape*>(bscConnection->DestinationObject());
+                if (bs) {
+                    auto channelIt = std::find(bs->BlendShapeChannels().begin(), bs->BlendShapeChannels().end(), bsc);
+                    if (channelIt != bs->BlendShapeChannels().end()) {
+                        auto channelIndex = static_cast<unsigned int>(std::distance(bs->BlendShapeChannels().begin(), channelIt));
+                        std::vector<const Connection*> bsConnections = doc.GetConnectionsBySourceSequenced(bs->ID(), "Geometry");
+                        for (const Connection* bsConnection : bsConnections) {
+                            auto geo = dynamic_cast<const Geometry*>(bsConnection->DestinationObject());
+                            if (geo) {
+                                std::vector<const Connection*> geoConnections = doc.GetConnectionsBySourceSequenced(geo->ID(), "Model");
+                                for (const Connection* geoConnection : geoConnections) {
+                                    auto model = dynamic_cast<const Model*>(geoConnection->DestinationObject());
+                                    if (model) {
+                                        auto geoIt = std::find(model->GetGeometry().begin(), model->GetGeometry().end(), geo);
+                                        auto geoIndex = static_cast<unsigned int>(std::distance(model->GetGeometry().begin(), geoIt));
+                                        auto name = aiString(FixNodeName(model->Name() + "*"));
+                                        name.length = 1 + ASSIMP_itoa10(name.data + name.length, MAXLEN - 1, geoIndex);
+                                        morphAnimData* animData;
+                                        auto animIt = morphAnimDatas->find(name.C_Str());
+                                        if (animIt == morphAnimDatas->end()) {
+                                            animData = new morphAnimData();
+                                            morphAnimDatas->insert(std::make_pair(name.C_Str(), animData));
+                                        }
+                                        else {
+                                            animData = animIt->second;
+                                        }
+                                        for (std::pair<std::string, const AnimationCurve*> curvesIt : node->Curves()) {
+                                            if (curvesIt.first == "d|DeformPercent") {
+                                                const AnimationCurve* animationCurve = curvesIt.second;
+                                                const KeyTimeList& keys = animationCurve->GetKeys();
+                                                const KeyValueList& values = animationCurve->GetValues();
+                                                unsigned int k = 0;
+                                                for (auto key : keys) {
+                                                    morphKeyData* keyData;
+                                                    auto keyIt = animData->find(key);
+                                                    if (keyIt == animData->end()) {
+                                                        keyData = new morphKeyData();
+                                                        animData->insert(std::make_pair(key, keyData));
+                                                    }
+                                                    else {
+                                                        keyData = keyIt->second;
+                                                    }
+                                                    keyData->values.push_back(channelIndex);
+                                                    keyData->weights.push_back(values.at(k) / 100.0f);
+                                                    k++;
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        // ------------------------------------------------------------------------------------------------
+#ifdef ASSIMP_BUILD_DEBUG
+        // ------------------------------------------------------------------------------------------------
+        // sanity check whether the input is ok
+        static void validateAnimCurveNodes(const std::vector<const AnimationCurveNode*>& curves,
+            bool strictMode) {
+            const Object* target(NULL);
+            for (const AnimationCurveNode* node : curves) {
+                if (!target) {
+                    target = node->Target();
+                }
+                if (node->Target() != target) {
+                    FBXImporter::LogWarn("Node target is nullptr type.");
+                }
+                if (strictMode) {
+                    ai_assert(node->Target() == target);
+                }
+            }
+        }
+#endif // ASSIMP_BUILD_DEBUG
+
+        // ------------------------------------------------------------------------------------------------
+        void FBXConverter::GenerateNodeAnimations(std::vector<aiNodeAnim*>& node_anims,
+            const std::string& fixed_name,
+            const std::vector<const AnimationCurveNode*>& curves,
+            const LayerMap& layer_map,
+            int64_t start, int64_t stop,
+            double& max_time,
+            double& min_time)
+        {
+
+            NodeMap node_property_map;
+            ai_assert(curves.size());
+
+#ifdef ASSIMP_BUILD_DEBUG
+            validateAnimCurveNodes(curves, doc.Settings().strictMode);
+#endif
+            const AnimationCurveNode* curve_node = NULL;
+            for (const AnimationCurveNode* node : curves) {
+                ai_assert(node);
+
+                if (node->TargetProperty().empty()) {
+                    FBXImporter::LogWarn("target property for animation curve not set: " + node->Name());
+                    continue;
+                }
+
+                curve_node = node;
+                if (node->Curves().empty()) {
+                    FBXImporter::LogWarn("no animation curves assigned to AnimationCurveNode: " + node->Name());
+                    continue;
+                }
+
+                node_property_map[node->TargetProperty()].push_back(node);
+            }
+
+            ai_assert(curve_node);
+            ai_assert(curve_node->TargetAsModel());
+
+            const Model& target = *curve_node->TargetAsModel();
+
+            // check for all possible transformation components
+            NodeMap::const_iterator chain[TransformationComp_MAXIMUM];
+
+            bool has_any = false;
+            bool has_complex = false;
+
+            for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i) {
+                const TransformationComp comp = static_cast<TransformationComp>(i);
+
+                // inverse pivots don't exist in the input, we just generate them
+                if (comp == TransformationComp_RotationPivotInverse || comp == TransformationComp_ScalingPivotInverse) {
+                    chain[i] = node_property_map.end();
+                    continue;
+                }
+
+                chain[i] = node_property_map.find(NameTransformationCompProperty(comp));
+                if (chain[i] != node_property_map.end()) {
+
+                    // check if this curves contains redundant information by looking
+                    // up the corresponding node's transformation chain.
+                    if (doc.Settings().optimizeEmptyAnimationCurves &&
+                        IsRedundantAnimationData(target, comp, (*chain[i]).second)) {
+
+                        FBXImporter::LogDebug("dropping redundant animation channel for node " + target.Name());
+                        continue;
+                    }
+
+                    has_any = true;
+
+                    if (comp != TransformationComp_Rotation && comp != TransformationComp_Scaling && comp != TransformationComp_Translation)
+                    {
+                        has_complex = true;
+                    }
+                }
+            }
+
+            if (!has_any) {
+                FBXImporter::LogWarn("ignoring node animation, did not find any transformation key frames");
+                return;
+            }
+
+            // this needs to play nicely with GenerateTransformationNodeChain() which will
+            // be invoked _later_ (animations come first). If this node has only rotation,
+            // scaling and translation _and_ there are no animated other components either,
+            // we can use a single node and also a single node animation channel.
+            if (!has_complex && !NeedsComplexTransformationChain(target)) {
+
+                aiNodeAnim* const nd = GenerateSimpleNodeAnim(fixed_name, target, chain,
+                    node_property_map.end(),
+                    layer_map,
+                    start, stop,
+                    max_time,
+                    min_time,
+                    true // input is TRS order, assimp is SRT
+                );
+
+                ai_assert(nd);
+                if (nd->mNumPositionKeys == 0 && nd->mNumRotationKeys == 0 && nd->mNumScalingKeys == 0) {
+                    delete nd;
+                }
+                else {
+                    node_anims.push_back(nd);
+                }
+                return;
+            }
+
+            // otherwise, things get gruesome and we need separate animation channels
+            // for each part of the transformation chain. Remember which channels
+            // we generated and pass this information to the node conversion
+            // code to avoid nodes that have identity transform, but non-identity
+            // animations, being dropped.
+            unsigned int flags = 0, bit = 0x1;
+            for (size_t i = 0; i < TransformationComp_MAXIMUM; ++i, bit <<= 1) {
+                const TransformationComp comp = static_cast<TransformationComp>(i);
+
+                if (chain[i] != node_property_map.end()) {
+                    flags |= bit;
+
+                    ai_assert(comp != TransformationComp_RotationPivotInverse);
+                    ai_assert(comp != TransformationComp_ScalingPivotInverse);
+
+                    const std::string& chain_name = NameTransformationChainNode(fixed_name, comp);
+
+                    aiNodeAnim* na = nullptr;
+                    switch (comp)
+                    {
+                    case TransformationComp_Rotation:
+                    case TransformationComp_PreRotation:
+                    case TransformationComp_PostRotation:
+                    case TransformationComp_GeometricRotation:
+                        na = GenerateRotationNodeAnim(chain_name,
+                            target,
+                            (*chain[i]).second,
+                            layer_map,
+                            start, stop,
+                            max_time,
+                            min_time);
+
+                        break;
+
+                    case TransformationComp_RotationOffset:
+                    case TransformationComp_RotationPivot:
+                    case TransformationComp_ScalingOffset:
+                    case TransformationComp_ScalingPivot:
+                    case TransformationComp_Translation:
+                    case TransformationComp_GeometricTranslation:
+                        na = GenerateTranslationNodeAnim(chain_name,
+                            target,
+                            (*chain[i]).second,
+                            layer_map,
+                            start, stop,
+                            max_time,
+                            min_time);
+
+                        // pivoting requires us to generate an implicit inverse channel to undo the pivot translation
+                        if (comp == TransformationComp_RotationPivot) {
+                            const std::string& invName = NameTransformationChainNode(fixed_name,
+                                TransformationComp_RotationPivotInverse);
+
+                            aiNodeAnim* const inv = GenerateTranslationNodeAnim(invName,
+                                target,
+                                (*chain[i]).second,
+                                layer_map,
+                                start, stop,
+                                max_time,
+                                min_time,
+                                true);
+
+                            ai_assert(inv);
+                            if (inv->mNumPositionKeys == 0 && inv->mNumRotationKeys == 0 && inv->mNumScalingKeys == 0) {
+                                delete inv;
+                            }
+                            else {
+                                node_anims.push_back(inv);
+                            }
+
+                            ai_assert(TransformationComp_RotationPivotInverse > i);
+                            flags |= bit << (TransformationComp_RotationPivotInverse - i);
+                        }
+                        else if (comp == TransformationComp_ScalingPivot) {
+                            const std::string& invName = NameTransformationChainNode(fixed_name,
+                                TransformationComp_ScalingPivotInverse);
+
+                            aiNodeAnim* const inv = GenerateTranslationNodeAnim(invName,
+                                target,
+                                (*chain[i]).second,
+                                layer_map,
+                                start, stop,
+                                max_time,
+                                min_time,
+                                true);
+
+                            ai_assert(inv);
+                            if (inv->mNumPositionKeys == 0 && inv->mNumRotationKeys == 0 && inv->mNumScalingKeys == 0) {
+                                delete inv;
+                            }
+                            else {
+                                node_anims.push_back(inv);
+                            }
+
+                            ai_assert(TransformationComp_RotationPivotInverse > i);
+                            flags |= bit << (TransformationComp_RotationPivotInverse - i);
+                        }
+
+                        break;
+
+                    case TransformationComp_Scaling:
+                    case TransformationComp_GeometricScaling:
+                        na = GenerateScalingNodeAnim(chain_name,
+                            target,
+                            (*chain[i]).second,
+                            layer_map,
+                            start, stop,
+                            max_time,
+                            min_time);
+
+                        break;
+
+                    default:
+                        ai_assert(false);
+                    }
+
+                    ai_assert(na);
+                    if (na->mNumPositionKeys == 0 && na->mNumRotationKeys == 0 && na->mNumScalingKeys == 0) {
+                        delete na;
+                    }
+                    else {
+                        node_anims.push_back(na);
+                    }
+                    continue;
+                }
+            }
+
+            node_anim_chain_bits[fixed_name] = flags;
+        }
+
+
+        bool FBXConverter::IsRedundantAnimationData(const Model& target,
+            TransformationComp comp,
+            const std::vector<const AnimationCurveNode*>& curves) {
+            ai_assert(curves.size());
+
+            // look for animation nodes with
+            //  * sub channels for all relevant components set
+            //  * one key/value pair per component
+            //  * combined values match up the corresponding value in the bind pose node transformation
+            // only such nodes are 'redundant' for this function.
+
+            if (curves.size() > 1) {
+                return false;
+            }
+
+            const AnimationCurveNode& nd = *curves.front();
+            const AnimationCurveMap& sub_curves = nd.Curves();
+
+            const AnimationCurveMap::const_iterator dx = sub_curves.find("d|X");
+            const AnimationCurveMap::const_iterator dy = sub_curves.find("d|Y");
+            const AnimationCurveMap::const_iterator dz = sub_curves.find("d|Z");
+
+            if (dx == sub_curves.end() || dy == sub_curves.end() || dz == sub_curves.end()) {
+                return false;
+            }
+
+            const KeyValueList& vx = (*dx).second->GetValues();
+            const KeyValueList& vy = (*dy).second->GetValues();
+            const KeyValueList& vz = (*dz).second->GetValues();
+
+            if (vx.size() != 1 || vy.size() != 1 || vz.size() != 1) {
+                return false;
+            }
+
+            const aiVector3D dyn_val = aiVector3D(vx[0], vy[0], vz[0]);
+            const aiVector3D& static_val = PropertyGet<aiVector3D>(target.Props(),
+                NameTransformationCompProperty(comp),
+                TransformationCompDefaultValue(comp)
+                );
+
+            const float epsilon = 1e-6f;
+            return (dyn_val - static_val).SquareLength() < epsilon;
+        }
+
+
+        aiNodeAnim* FBXConverter::GenerateRotationNodeAnim(const std::string& name,
+            const Model& target,
+            const std::vector<const AnimationCurveNode*>& curves,
+            const LayerMap& layer_map,
+            int64_t start, int64_t stop,
+            double& max_time,
+            double& min_time)
+        {
+            std::unique_ptr<aiNodeAnim> na(new aiNodeAnim());
+            na->mNodeName.Set(name);
+
+            ConvertRotationKeys(na.get(), curves, layer_map, start, stop, max_time, min_time, target.RotationOrder());
+
+            // dummy scaling key
+            na->mScalingKeys = new aiVectorKey[1];
+            na->mNumScalingKeys = 1;
+
+            na->mScalingKeys[0].mTime = 0.;
+            na->mScalingKeys[0].mValue = aiVector3D(1.0f, 1.0f, 1.0f);
+
+            // dummy position key
+            na->mPositionKeys = new aiVectorKey[1];
+            na->mNumPositionKeys = 1;
+
+            na->mPositionKeys[0].mTime = 0.;
+            na->mPositionKeys[0].mValue = aiVector3D();
+
+            return na.release();
+        }
+
+        aiNodeAnim* FBXConverter::GenerateScalingNodeAnim(const std::string& name,
+            const Model& /*target*/,
+            const std::vector<const AnimationCurveNode*>& curves,
+            const LayerMap& layer_map,
+            int64_t start, int64_t stop,
+            double& max_time,
+            double& min_time)
+        {
+            std::unique_ptr<aiNodeAnim> na(new aiNodeAnim());
+            na->mNodeName.Set(name);
+
+            ConvertScaleKeys(na.get(), curves, layer_map, start, stop, max_time, min_time);
+
+            // dummy rotation key
+            na->mRotationKeys = new aiQuatKey[1];
+            na->mNumRotationKeys = 1;
+
+            na->mRotationKeys[0].mTime = 0.;
+            na->mRotationKeys[0].mValue = aiQuaternion();
+
+            // dummy position key
+            na->mPositionKeys = new aiVectorKey[1];
+            na->mNumPositionKeys = 1;
+
+            na->mPositionKeys[0].mTime = 0.;
+            na->mPositionKeys[0].mValue = aiVector3D();
+
+            return na.release();
+        }
+
+        aiNodeAnim* FBXConverter::GenerateTranslationNodeAnim(const std::string& name,
+            const Model& /*target*/,
+            const std::vector<const AnimationCurveNode*>& curves,
+            const LayerMap& layer_map,
+            int64_t start, int64_t stop,
+            double& max_time,
+            double& min_time,
+            bool inverse) {
+            std::unique_ptr<aiNodeAnim> na(new aiNodeAnim());
+            na->mNodeName.Set(name);
+
+            ConvertTranslationKeys(na.get(), curves, layer_map, start, stop, max_time, min_time);
+
+            if (inverse) {
+                for (unsigned int i = 0; i < na->mNumPositionKeys; ++i) {
+                    na->mPositionKeys[i].mValue *= -1.0f;
+                }
+            }
+
+            // dummy scaling key
+            na->mScalingKeys = new aiVectorKey[1];
+            na->mNumScalingKeys = 1;
+
+            na->mScalingKeys[0].mTime = 0.;
+            na->mScalingKeys[0].mValue = aiVector3D(1.0f, 1.0f, 1.0f);
+
+            // dummy rotation key
+            na->mRotationKeys = new aiQuatKey[1];
+            na->mNumRotationKeys = 1;
+
+            na->mRotationKeys[0].mTime = 0.;
+            na->mRotationKeys[0].mValue = aiQuaternion();
+
+            return na.release();
+        }
+
+        aiNodeAnim* FBXConverter::GenerateSimpleNodeAnim(const std::string& name,
+            const Model& target,
+            NodeMap::const_iterator chain[TransformationComp_MAXIMUM],
+            NodeMap::const_iterator iter_end,
+            const LayerMap& layer_map,
+            int64_t start, int64_t stop,
+            double& max_time,
+            double& min_time,
+            bool reverse_order)
+
+        {
+            std::unique_ptr<aiNodeAnim> na(new aiNodeAnim());
+            na->mNodeName.Set(name);
+
+            const PropertyTable& props = target.Props();
+
+            // need to convert from TRS order to SRT?
+            if (reverse_order) {
+
+                aiVector3D def_scale = PropertyGet(props, "Lcl Scaling", aiVector3D(1.f, 1.f, 1.f));
+                aiVector3D def_translate = PropertyGet(props, "Lcl Translation", aiVector3D(0.f, 0.f, 0.f));
+                aiVector3D def_rot = PropertyGet(props, "Lcl Rotation", aiVector3D(0.f, 0.f, 0.f));
+
+                KeyFrameListList scaling;
+                KeyFrameListList translation;
+                KeyFrameListList rotation;
+
+                if (chain[TransformationComp_Scaling] != iter_end) {
+                    scaling = GetKeyframeList((*chain[TransformationComp_Scaling]).second, start, stop);
+                }
+
+                if (chain[TransformationComp_Translation] != iter_end) {
+                    translation = GetKeyframeList((*chain[TransformationComp_Translation]).second, start, stop);
+                }
+
+                if (chain[TransformationComp_Rotation] != iter_end) {
+                    rotation = GetKeyframeList((*chain[TransformationComp_Rotation]).second, start, stop);
+                }
+
+                KeyFrameListList joined;
+                joined.insert(joined.end(), scaling.begin(), scaling.end());
+                joined.insert(joined.end(), translation.begin(), translation.end());
+                joined.insert(joined.end(), rotation.begin(), rotation.end());
+
+                const KeyTimeList& times = GetKeyTimeList(joined);
+
+                aiQuatKey* out_quat = new aiQuatKey[times.size()];
+                aiVectorKey* out_scale = new aiVectorKey[times.size()];
+                aiVectorKey* out_translation = new aiVectorKey[times.size()];
+
+                if (times.size())
+                {
+                    ConvertTransformOrder_TRStoSRT(out_quat, out_scale, out_translation,
+                        scaling,
+                        translation,
+                        rotation,
+                        times,
+                        max_time,
+                        min_time,
+                        target.RotationOrder(),
+                        def_scale,
+                        def_translate,
+                        def_rot);
+                }
+
+                // XXX remove duplicates / redundant keys which this operation did
+                // likely produce if not all three channels were equally dense.
+
+                na->mNumScalingKeys = static_cast<unsigned int>(times.size());
+                na->mNumRotationKeys = na->mNumScalingKeys;
+                na->mNumPositionKeys = na->mNumScalingKeys;
+
+                na->mScalingKeys = out_scale;
+                na->mRotationKeys = out_quat;
+                na->mPositionKeys = out_translation;
+            }
+            else {
+
+                // if a particular transformation is not given, grab it from
+                // the corresponding node to meet the semantics of aiNodeAnim,
+                // which requires all of rotation, scaling and translation
+                // to be set.
+                if (chain[TransformationComp_Scaling] != iter_end) {
+                    ConvertScaleKeys(na.get(), (*chain[TransformationComp_Scaling]).second,
+                        layer_map,
+                        start, stop,
+                        max_time,
+                        min_time);
+                }
+                else {
+                    na->mScalingKeys = new aiVectorKey[1];
+                    na->mNumScalingKeys = 1;
+
+                    na->mScalingKeys[0].mTime = 0.;
+                    na->mScalingKeys[0].mValue = PropertyGet(props, "Lcl Scaling",
+                        aiVector3D(1.f, 1.f, 1.f));
+                }
+
+                if (chain[TransformationComp_Rotation] != iter_end) {
+                    ConvertRotationKeys(na.get(), (*chain[TransformationComp_Rotation]).second,
+                        layer_map,
+                        start, stop,
+                        max_time,
+                        min_time,
+                        target.RotationOrder());
+                }
+                else {
+                    na->mRotationKeys = new aiQuatKey[1];
+                    na->mNumRotationKeys = 1;
+
+                    na->mRotationKeys[0].mTime = 0.;
+                    na->mRotationKeys[0].mValue = EulerToQuaternion(
+                        PropertyGet(props, "Lcl Rotation", aiVector3D(0.f, 0.f, 0.f)),
+                        target.RotationOrder());
+                }
+
+                if (chain[TransformationComp_Translation] != iter_end) {
+                    ConvertTranslationKeys(na.get(), (*chain[TransformationComp_Translation]).second,
+                        layer_map,
+                        start, stop,
+                        max_time,
+                        min_time);
+                }
+                else {
+                    na->mPositionKeys = new aiVectorKey[1];
+                    na->mNumPositionKeys = 1;
+
+                    na->mPositionKeys[0].mTime = 0.;
+                    na->mPositionKeys[0].mValue = PropertyGet(props, "Lcl Translation",
+                        aiVector3D(0.f, 0.f, 0.f));
+                }
+
+            }
+            return na.release();
+        }
+
+        FBXConverter::KeyFrameListList FBXConverter::GetKeyframeList(const std::vector<const AnimationCurveNode*>& nodes, int64_t start, int64_t stop)
+        {
+            KeyFrameListList inputs;
+            inputs.reserve(nodes.size() * 3);
+
+            //give some breathing room for rounding errors
+            int64_t adj_start = start - 10000;
+            int64_t adj_stop = stop + 10000;
+
+            for (const AnimationCurveNode* node : nodes) {
+                ai_assert(node);
+
+                const AnimationCurveMap& curves = node->Curves();
+                for (const AnimationCurveMap::value_type& kv : curves) {
+
+                    unsigned int mapto;
+                    if (kv.first == "d|X") {
+                        mapto = 0;
+                    }
+                    else if (kv.first == "d|Y") {
+                        mapto = 1;
+                    }
+                    else if (kv.first == "d|Z") {
+                        mapto = 2;
+                    }
+                    else {
+                        FBXImporter::LogWarn("ignoring scale animation curve, did not recognize target component");
+                        continue;
+                    }
+
+                    const AnimationCurve* const curve = kv.second;
+                    ai_assert(curve->GetKeys().size() == curve->GetValues().size() && curve->GetKeys().size());
+
+                    //get values within the start/stop time window
+                    std::shared_ptr<KeyTimeList> Keys(new KeyTimeList());
+                    std::shared_ptr<KeyValueList> Values(new KeyValueList());
+                    const size_t count = curve->GetKeys().size();
+                    Keys->reserve(count);
+                    Values->reserve(count);
+                    for (size_t n = 0; n < count; n++)
+                    {
+                        int64_t k = curve->GetKeys().at(n);
+                        if (k >= adj_start && k <= adj_stop)
+                        {
+                            Keys->push_back(k);
+                            Values->push_back(curve->GetValues().at(n));
+                        }
+                    }
+
+                    inputs.push_back(std::make_tuple(Keys, Values, mapto));
+                }
+            }
+            return inputs; // pray for NRVO :-)
+        }
+
+
+        KeyTimeList FBXConverter::GetKeyTimeList(const KeyFrameListList& inputs) {
+            ai_assert(!inputs.empty());
+
+            // reserve some space upfront - it is likely that the key-frame lists
+            // have matching time values, so max(of all key-frame lists) should
+            // be a good estimate.
+            KeyTimeList keys;
+
+            size_t estimate = 0;
+            for (const KeyFrameList& kfl : inputs) {
+                estimate = std::max(estimate, std::get<0>(kfl)->size());
+            }
+
+            keys.reserve(estimate);
+
+            std::vector<unsigned int> next_pos;
+            next_pos.resize(inputs.size(), 0);
+
+            const size_t count = inputs.size();
+            while (true) {
+
+                int64_t min_tick = std::numeric_limits<int64_t>::max();
+                for (size_t i = 0; i < count; ++i) {
+                    const KeyFrameList& kfl = inputs[i];
+
+                    if (std::get<0>(kfl)->size() > next_pos[i] && std::get<0>(kfl)->at(next_pos[i]) < min_tick) {
+                        min_tick = std::get<0>(kfl)->at(next_pos[i]);
+                    }
+                }
+
+                if (min_tick == std::numeric_limits<int64_t>::max()) {
+                    break;
+                }
+                keys.push_back(min_tick);
+
+                for (size_t i = 0; i < count; ++i) {
+                    const KeyFrameList& kfl = inputs[i];
+
+
+                    while (std::get<0>(kfl)->size() > next_pos[i] && std::get<0>(kfl)->at(next_pos[i]) == min_tick) {
+                        ++next_pos[i];
+                    }
+                }
+            }
+
+            return keys;
+        }
+
+        void FBXConverter::InterpolateKeys(aiVectorKey* valOut, const KeyTimeList& keys, const KeyFrameListList& inputs,
+            const aiVector3D& def_value,
+            double& max_time,
+            double& min_time) {
+            ai_assert(!keys.empty());
+            ai_assert(nullptr != valOut);
+
+            std::vector<unsigned int> next_pos;
+            const size_t count(inputs.size());
+
+            next_pos.resize(inputs.size(), 0);
+
+            for (KeyTimeList::value_type time : keys) {
+                ai_real result[3] = { def_value.x, def_value.y, def_value.z };
+
+                for (size_t i = 0; i < count; ++i) {
+                    const KeyFrameList& kfl = inputs[i];
+
+                    const size_t ksize = std::get<0>(kfl)->size();
+                    if (ksize == 0) {
+                        continue;
+                    }
+                    if (ksize > next_pos[i] && std::get<0>(kfl)->at(next_pos[i]) == time) {
+                        ++next_pos[i];
+                    }
+
+                    const size_t id0 = next_pos[i] > 0 ? next_pos[i] - 1 : 0;
+                    const size_t id1 = next_pos[i] == ksize ? ksize - 1 : next_pos[i];
+
+                    // use lerp for interpolation
+                    const KeyValueList::value_type valueA = std::get<1>(kfl)->at(id0);
+                    const KeyValueList::value_type valueB = std::get<1>(kfl)->at(id1);
+
+                    const KeyTimeList::value_type timeA = std::get<0>(kfl)->at(id0);
+                    const KeyTimeList::value_type timeB = std::get<0>(kfl)->at(id1);
+
+                    const ai_real factor = timeB == timeA ? ai_real(0.) : static_cast<ai_real>((time - timeA)) / (timeB - timeA);
+                    const ai_real interpValue = static_cast<ai_real>(valueA + (valueB - valueA) * factor);
+
+                    result[std::get<2>(kfl)] = interpValue;
+                }
+
+                // magic value to convert fbx times to seconds
+                valOut->mTime = CONVERT_FBX_TIME(time) * anim_fps;
+
+                min_time = std::min(min_time, valOut->mTime);
+                max_time = std::max(max_time, valOut->mTime);
+
+                valOut->mValue.x = result[0];
+                valOut->mValue.y = result[1];
+                valOut->mValue.z = result[2];
+
+                ++valOut;
+            }
+        }
+
+        void FBXConverter::InterpolateKeys(aiQuatKey* valOut, const KeyTimeList& keys, const KeyFrameListList& inputs,
+            const aiVector3D& def_value,
+            double& maxTime,
+            double& minTime,
+            Model::RotOrder order)
+        {
+            ai_assert(!keys.empty());
+            ai_assert(nullptr != valOut);
+
+            std::unique_ptr<aiVectorKey[]> temp(new aiVectorKey[keys.size()]);
+            InterpolateKeys(temp.get(), keys, inputs, def_value, maxTime, minTime);
+
+            aiMatrix4x4 m;
+
+            aiQuaternion lastq;
+
+            for (size_t i = 0, c = keys.size(); i < c; ++i) {
+
+                valOut[i].mTime = temp[i].mTime;
+
+                GetRotationMatrix(order, temp[i].mValue, m);
+                aiQuaternion quat = aiQuaternion(aiMatrix3x3(m));
+
+                // take shortest path by checking the inner product
+                // http://www.3dkingdoms.com/weekly/weekly.php?a=36
+                if (quat.x * lastq.x + quat.y * lastq.y + quat.z * lastq.z + quat.w * lastq.w < 0)
+                {
+                    quat.x = -quat.x;
+                    quat.y = -quat.y;
+                    quat.z = -quat.z;
+                    quat.w = -quat.w;
+                }
+                lastq = quat;
+
+                valOut[i].mValue = quat;
+            }
+        }
+
+        void FBXConverter::ConvertTransformOrder_TRStoSRT(aiQuatKey* out_quat, aiVectorKey* out_scale,
+            aiVectorKey* out_translation,
+            const KeyFrameListList& scaling,
+            const KeyFrameListList& translation,
+            const KeyFrameListList& rotation,
+            const KeyTimeList& times,
+            double& maxTime,
+            double& minTime,
+            Model::RotOrder order,
+            const aiVector3D& def_scale,
+            const aiVector3D& def_translate,
+            const aiVector3D& def_rotation)
+        {
+            if (rotation.size()) {
+                InterpolateKeys(out_quat, times, rotation, def_rotation, maxTime, minTime, order);
+            }
+            else {
+                for (size_t i = 0; i < times.size(); ++i) {
+                    out_quat[i].mTime = CONVERT_FBX_TIME(times[i]) * anim_fps;
+                    out_quat[i].mValue = EulerToQuaternion(def_rotation, order);
+                }
+            }
+
+            if (scaling.size()) {
+                InterpolateKeys(out_scale, times, scaling, def_scale, maxTime, minTime);
+            }
+            else {
+                for (size_t i = 0; i < times.size(); ++i) {
+                    out_scale[i].mTime = CONVERT_FBX_TIME(times[i]) * anim_fps;
+                    out_scale[i].mValue = def_scale;
+                }
+            }
+
+            if (translation.size()) {
+                InterpolateKeys(out_translation, times, translation, def_translate, maxTime, minTime);
+            }
+            else {
+                for (size_t i = 0; i < times.size(); ++i) {
+                    out_translation[i].mTime = CONVERT_FBX_TIME(times[i]) * anim_fps;
+                    out_translation[i].mValue = def_translate;
+                }
+            }
+
+            const size_t count = times.size();
+            for (size_t i = 0; i < count; ++i) {
+                aiQuaternion& r = out_quat[i].mValue;
+                aiVector3D& s = out_scale[i].mValue;
+                aiVector3D& t = out_translation[i].mValue;
+
+                aiMatrix4x4 mat, temp;
+                aiMatrix4x4::Translation(t, mat);
+                mat *= aiMatrix4x4(r.GetMatrix());
+                mat *= aiMatrix4x4::Scaling(s, temp);
+
+                mat.Decompose(s, r, t);
+            }
+        }
+
+        aiQuaternion FBXConverter::EulerToQuaternion(const aiVector3D& rot, Model::RotOrder order)
+        {
+            aiMatrix4x4 m;
+            GetRotationMatrix(order, rot, m);
+
+            return aiQuaternion(aiMatrix3x3(m));
+        }
+
+        void FBXConverter::ConvertScaleKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes, const LayerMap& /*layers*/,
+            int64_t start, int64_t stop,
+            double& maxTime,
+            double& minTime)
+        {
+            ai_assert(nodes.size());
+
+            // XXX for now, assume scale should be blended geometrically (i.e. two
+            // layers should be multiplied with each other). There is a FBX
+            // property in the layer to specify the behaviour, though.
+
+            const KeyFrameListList& inputs = GetKeyframeList(nodes, start, stop);
+            const KeyTimeList& keys = GetKeyTimeList(inputs);
+
+            na->mNumScalingKeys = static_cast<unsigned int>(keys.size());
+            na->mScalingKeys = new aiVectorKey[keys.size()];
+            if (keys.size() > 0)
+                InterpolateKeys(na->mScalingKeys, keys, inputs, aiVector3D(1.0f, 1.0f, 1.0f), maxTime, minTime);
+        }
+
+        void FBXConverter::ConvertTranslationKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes,
+            const LayerMap& /*layers*/,
+            int64_t start, int64_t stop,
+            double& maxTime,
+            double& minTime)
+        {
+            ai_assert(nodes.size());
+
+            // XXX see notes in ConvertScaleKeys()
+            const KeyFrameListList& inputs = GetKeyframeList(nodes, start, stop);
+            const KeyTimeList& keys = GetKeyTimeList(inputs);
+
+            na->mNumPositionKeys = static_cast<unsigned int>(keys.size());
+            na->mPositionKeys = new aiVectorKey[keys.size()];
+            if (keys.size() > 0)
+                InterpolateKeys(na->mPositionKeys, keys, inputs, aiVector3D(0.0f, 0.0f, 0.0f), maxTime, minTime);
+        }
+
+        void FBXConverter::ConvertRotationKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes,
+            const LayerMap& /*layers*/,
+            int64_t start, int64_t stop,
+            double& maxTime,
+            double& minTime,
+            Model::RotOrder order)
+        {
+            ai_assert(nodes.size());
+
+            // XXX see notes in ConvertScaleKeys()
+            const std::vector< KeyFrameList >& inputs = GetKeyframeList(nodes, start, stop);
+            const KeyTimeList& keys = GetKeyTimeList(inputs);
+
+            na->mNumRotationKeys = static_cast<unsigned int>(keys.size());
+            na->mRotationKeys = new aiQuatKey[keys.size()];
+            if (!keys.empty()) {
+                InterpolateKeys(na->mRotationKeys, keys, inputs, aiVector3D(0.0f, 0.0f, 0.0f), maxTime, minTime, order);
+            }
+        }
+
+        void FBXConverter::ConvertGlobalSettings() {
+            if (nullptr == out) {
+                return;
+            }
+
+            out->mMetaData = aiMetadata::Alloc(15);
+            out->mMetaData->Set(0, "UpAxis", doc.GlobalSettings().UpAxis());
+            out->mMetaData->Set(1, "UpAxisSign", doc.GlobalSettings().UpAxisSign());
+            out->mMetaData->Set(2, "FrontAxis", doc.GlobalSettings().FrontAxis());
+            out->mMetaData->Set(3, "FrontAxisSign", doc.GlobalSettings().FrontAxisSign());
+            out->mMetaData->Set(4, "CoordAxis", doc.GlobalSettings().CoordAxis());
+            out->mMetaData->Set(5, "CoordAxisSign", doc.GlobalSettings().CoordAxisSign());
+            out->mMetaData->Set(6, "OriginalUpAxis", doc.GlobalSettings().OriginalUpAxis());
+            out->mMetaData->Set(7, "OriginalUpAxisSign", doc.GlobalSettings().OriginalUpAxisSign());
+            out->mMetaData->Set(8, "UnitScaleFactor", (double)doc.GlobalSettings().UnitScaleFactor());
+            out->mMetaData->Set(9, "OriginalUnitScaleFactor", doc.GlobalSettings().OriginalUnitScaleFactor());
+            out->mMetaData->Set(10, "AmbientColor", doc.GlobalSettings().AmbientColor());
+            out->mMetaData->Set(11, "FrameRate", (int)doc.GlobalSettings().TimeMode());
+            out->mMetaData->Set(12, "TimeSpanStart", doc.GlobalSettings().TimeSpanStart());
+            out->mMetaData->Set(13, "TimeSpanStop", doc.GlobalSettings().TimeSpanStop());
+            out->mMetaData->Set(14, "CustomFrameRate", doc.GlobalSettings().CustomFrameRate());
+        }
+
+        void FBXConverter::TransferDataToScene()
+        {
+            ai_assert(!out->mMeshes);
+            ai_assert(!out->mNumMeshes);
+
+            // note: the trailing () ensures initialization with NULL - not
+            // many C++ users seem to know this, so pointing it out to avoid
+            // confusion why this code works.
+
+            if (meshes.size()) {
+                out->mMeshes = new aiMesh*[meshes.size()]();
+                out->mNumMeshes = static_cast<unsigned int>(meshes.size());
+
+                std::swap_ranges(meshes.begin(), meshes.end(), out->mMeshes);
+            }
+
+            if (materials.size()) {
+                out->mMaterials = new aiMaterial*[materials.size()]();
+                out->mNumMaterials = static_cast<unsigned int>(materials.size());
+
+                std::swap_ranges(materials.begin(), materials.end(), out->mMaterials);
+            }
+
+            if (animations.size()) {
+                out->mAnimations = new aiAnimation*[animations.size()]();
+                out->mNumAnimations = static_cast<unsigned int>(animations.size());
+
+                std::swap_ranges(animations.begin(), animations.end(), out->mAnimations);
+            }
+
+            if (lights.size()) {
+                out->mLights = new aiLight*[lights.size()]();
+                out->mNumLights = static_cast<unsigned int>(lights.size());
+
+                std::swap_ranges(lights.begin(), lights.end(), out->mLights);
+            }
+
+            if (cameras.size()) {
+                out->mCameras = new aiCamera*[cameras.size()]();
+                out->mNumCameras = static_cast<unsigned int>(cameras.size());
+
+                std::swap_ranges(cameras.begin(), cameras.end(), out->mCameras);
+            }
+
+            if (textures.size()) {
+                out->mTextures = new aiTexture*[textures.size()]();
+                out->mNumTextures = static_cast<unsigned int>(textures.size());
+
+                std::swap_ranges(textures.begin(), textures.end(), out->mTextures);
+            }
+        }
+
+        // ------------------------------------------------------------------------------------------------
+        void ConvertToAssimpScene(aiScene* out, const Document& doc)
+        {
+            FBXConverter converter(out, doc);
+        }
+
+    } // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXConverter.h b/thirdparty/assimp/code/FBXConverter.h
new file mode 100644
index 0000000000..50637468b9
--- /dev/null
+++ b/thirdparty/assimp/code/FBXConverter.h
@@ -0,0 +1,461 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXDConverter.h
+ *  @brief FBX DOM to aiScene conversion
+ */
+#ifndef INCLUDED_AI_FBX_CONVERTER_H
+#define INCLUDED_AI_FBX_CONVERTER_H
+
+#include "FBXParser.h"
+#include "FBXMeshGeometry.h"
+#include "FBXDocument.h"
+#include "FBXUtil.h"
+#include "FBXProperties.h"
+#include "FBXImporter.h"
+#include <assimp/anim.h>
+#include <assimp/material.h>
+#include <assimp/light.h>
+#include <assimp/texture.h>
+#include <assimp/camera.h>
+#include <assimp/StringComparison.h>
+#include <unordered_map>
+#include <unordered_set>
+
+struct aiScene;
+struct aiNode;
+struct aiMaterial;
+
+struct morphKeyData {
+    std::vector<unsigned int> values;
+    std::vector<float> weights;
+};
+typedef std::map<int64_t, morphKeyData*> morphAnimData;
+
+namespace Assimp {
+namespace FBX {
+
+class Document;
+
+/** 
+ *  Convert a FBX #Document to #aiScene
+ *  @param out Empty scene to be populated
+ *  @param doc Parsed FBX document 
+ */
+void ConvertToAssimpScene(aiScene* out, const Document& doc);
+
+/** Dummy class to encapsulate the conversion process */
+class FBXConverter {
+public:
+    /**
+    *  The different parts that make up the final local transformation of a fbx-node
+    */
+    enum TransformationComp {
+        TransformationComp_GeometricScalingInverse = 0,
+        TransformationComp_GeometricRotationInverse,
+        TransformationComp_GeometricTranslationInverse,
+        TransformationComp_Translation,
+        TransformationComp_RotationOffset,
+        TransformationComp_RotationPivot,
+        TransformationComp_PreRotation,
+        TransformationComp_Rotation,
+        TransformationComp_PostRotation,
+        TransformationComp_RotationPivotInverse,
+        TransformationComp_ScalingOffset,
+        TransformationComp_ScalingPivot,
+        TransformationComp_Scaling,
+        TransformationComp_ScalingPivotInverse,
+        TransformationComp_GeometricTranslation,
+        TransformationComp_GeometricRotation,
+        TransformationComp_GeometricScaling,
+
+        TransformationComp_MAXIMUM
+    };
+
+public:
+    FBXConverter(aiScene* out, const Document& doc);
+    ~FBXConverter();
+
+private:
+    // ------------------------------------------------------------------------------------------------
+    // find scene root and trigger recursive scene conversion
+    void ConvertRootNode();
+
+    // ------------------------------------------------------------------------------------------------
+    // collect and assign child nodes
+    void ConvertNodes(uint64_t id, aiNode& parent, const aiMatrix4x4& parent_transform = aiMatrix4x4());
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertLights(const Model& model, const std::string &orig_name );
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertCameras(const Model& model, const std::string &orig_name );
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertLight( const Light& light, const std::string &orig_name );
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertCamera( const Camera& cam, const std::string &orig_name );
+
+    // ------------------------------------------------------------------------------------------------
+    void GetUniqueName( const std::string &name, std::string& uniqueName );
+
+    // ------------------------------------------------------------------------------------------------
+    // this returns unified names usable within assimp identifiers (i.e. no space characters -
+    // while these would be allowed, they are a potential trouble spot so better not use them).
+    const char* NameTransformationComp(TransformationComp comp);
+
+    // ------------------------------------------------------------------------------------------------
+    // note: this returns the REAL fbx property names
+    const char* NameTransformationCompProperty(TransformationComp comp);
+
+    // ------------------------------------------------------------------------------------------------
+    aiVector3D TransformationCompDefaultValue(TransformationComp comp);
+
+    // ------------------------------------------------------------------------------------------------
+    void GetRotationMatrix(Model::RotOrder mode, const aiVector3D& rotation, aiMatrix4x4& out);
+    // ------------------------------------------------------------------------------------------------
+    /**
+    *  checks if a node has more than just scaling, rotation and translation components
+    */
+    bool NeedsComplexTransformationChain(const Model& model);
+
+    // ------------------------------------------------------------------------------------------------
+    // note: name must be a FixNodeName() result
+    std::string NameTransformationChainNode(const std::string& name, TransformationComp comp);
+
+    // ------------------------------------------------------------------------------------------------
+    /**
+    *  note: memory for output_nodes will be managed by the caller
+    */
+    void GenerateTransformationNodeChain(const Model& model, std::vector<aiNode*>& output_nodes, std::vector<aiNode*>& post_output_nodes);
+
+    // ------------------------------------------------------------------------------------------------
+    void SetupNodeMetadata(const Model& model, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertModel(const Model& model, aiNode& nd, const aiMatrix4x4& node_global_transform);
+    
+    // ------------------------------------------------------------------------------------------------
+    // MeshGeometry -> aiMesh, return mesh index + 1 or 0 if the conversion failed
+    std::vector<unsigned int> ConvertMesh(const MeshGeometry& mesh, const Model& model,
+        const aiMatrix4x4& node_global_transform, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    std::vector<unsigned int> ConvertLine(const LineGeometry& line, const Model& model,
+        const aiMatrix4x4& node_global_transform, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    aiMesh* SetupEmptyMesh(const Geometry& mesh, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    unsigned int ConvertMeshSingleMaterial(const MeshGeometry& mesh, const Model& model,
+        const aiMatrix4x4& node_global_transform, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    std::vector<unsigned int> ConvertMeshMultiMaterial(const MeshGeometry& mesh, const Model& model,
+        const aiMatrix4x4& node_global_transform, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    unsigned int ConvertMeshMultiMaterial(const MeshGeometry& mesh, const Model& model,
+        MatIndexArray::value_type index,
+        const aiMatrix4x4& node_global_transform, aiNode& nd);
+
+    // ------------------------------------------------------------------------------------------------
+    static const unsigned int NO_MATERIAL_SEPARATION = /* std::numeric_limits<unsigned int>::max() */
+        static_cast<unsigned int>(-1);
+
+    // ------------------------------------------------------------------------------------------------
+    /**
+    *  - if materialIndex == NO_MATERIAL_SEPARATION, materials are not taken into
+    *    account when determining which weights to include.
+    *  - outputVertStartIndices is only used when a material index is specified, it gives for
+    *    each output vertex the DOM index it maps to.
+    */
+    void ConvertWeights(aiMesh* out, const Model& model, const MeshGeometry& geo,
+        const aiMatrix4x4& node_global_transform = aiMatrix4x4(),
+        unsigned int materialIndex = NO_MATERIAL_SEPARATION,
+        std::vector<unsigned int>* outputVertStartIndices = NULL);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertCluster(std::vector<aiBone*>& bones, const Model& /*model*/, const Cluster& cl,
+        std::vector<size_t>& out_indices,
+        std::vector<size_t>& index_out_indices,
+        std::vector<size_t>& count_out_indices,
+        const aiMatrix4x4& node_global_transform);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertMaterialForMesh(aiMesh* out, const Model& model, const MeshGeometry& geo,
+        MatIndexArray::value_type materialIndex);
+
+    // ------------------------------------------------------------------------------------------------
+    unsigned int GetDefaultMaterial();
+
+    // ------------------------------------------------------------------------------------------------
+    // Material -> aiMaterial
+    unsigned int ConvertMaterial(const Material& material, const MeshGeometry* const mesh);
+
+    // ------------------------------------------------------------------------------------------------
+    // Video -> aiTexture
+    unsigned int ConvertVideo(const Video& video);
+
+    // ------------------------------------------------------------------------------------------------
+    // convert embedded texture if necessary and return actual texture path
+    aiString GetTexturePath(const Texture* tex);
+
+    // ------------------------------------------------------------------------------------------------
+    void TrySetTextureProperties(aiMaterial* out_mat, const TextureMap& textures,
+        const std::string& propName,
+        aiTextureType target, const MeshGeometry* const mesh);
+
+    // ------------------------------------------------------------------------------------------------
+    void TrySetTextureProperties(aiMaterial* out_mat, const LayeredTextureMap& layeredTextures,
+        const std::string& propName,
+        aiTextureType target, const MeshGeometry* const mesh);
+
+    // ------------------------------------------------------------------------------------------------
+    void SetTextureProperties(aiMaterial* out_mat, const TextureMap& textures, const MeshGeometry* const mesh);
+
+    // ------------------------------------------------------------------------------------------------
+    void SetTextureProperties(aiMaterial* out_mat, const LayeredTextureMap& layeredTextures, const MeshGeometry* const mesh);
+
+    // ------------------------------------------------------------------------------------------------
+    aiColor3D GetColorPropertyFromMaterial(const PropertyTable& props, const std::string& baseName,
+        bool& result);
+    aiColor3D GetColorPropertyFactored(const PropertyTable& props, const std::string& colorName,
+        const std::string& factorName, bool& result, bool useTemplate = true);
+    aiColor3D GetColorProperty(const PropertyTable& props, const std::string& colorName,
+        bool& result, bool useTemplate = true);
+
+    // ------------------------------------------------------------------------------------------------
+    void SetShadingPropertiesCommon(aiMaterial* out_mat, const PropertyTable& props);
+    void SetShadingPropertiesRaw(aiMaterial* out_mat, const PropertyTable& props, const TextureMap& textures, const MeshGeometry* const mesh);
+
+    // ------------------------------------------------------------------------------------------------
+    // get the number of fps for a FrameRate enumerated value
+    static double FrameRateToDouble(FileGlobalSettings::FrameRate fp, double customFPSVal = -1.0);
+
+    // ------------------------------------------------------------------------------------------------
+    // convert animation data to aiAnimation et al
+    void ConvertAnimations();
+
+    // ------------------------------------------------------------------------------------------------
+    // takes a fbx node name and returns the identifier to be used in the assimp output scene.
+    // the function is guaranteed to provide consistent results over multiple invocations
+    // UNLESS RenameNode() is called for a particular node name.
+    std::string FixNodeName(const std::string& name);
+    std::string FixAnimMeshName(const std::string& name);
+
+    typedef std::map<const AnimationCurveNode*, const AnimationLayer*> LayerMap;
+
+    // XXX: better use multi_map ..
+    typedef std::map<std::string, std::vector<const AnimationCurveNode*> > NodeMap;
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertAnimationStack(const AnimationStack& st);
+
+    // ------------------------------------------------------------------------------------------------
+    void ProcessMorphAnimDatas(std::map<std::string, morphAnimData*>* morphAnimDatas, const BlendShapeChannel* bsc, const AnimationCurveNode* node);
+
+    // ------------------------------------------------------------------------------------------------
+    void GenerateNodeAnimations(std::vector<aiNodeAnim*>& node_anims,
+        const std::string& fixed_name,
+        const std::vector<const AnimationCurveNode*>& curves,
+        const LayerMap& layer_map,
+        int64_t start, int64_t stop,
+        double& max_time,
+        double& min_time);
+
+    // ------------------------------------------------------------------------------------------------
+    bool IsRedundantAnimationData(const Model& target,
+        TransformationComp comp,
+        const std::vector<const AnimationCurveNode*>& curves);
+
+    // ------------------------------------------------------------------------------------------------
+    aiNodeAnim* GenerateRotationNodeAnim(const std::string& name,
+        const Model& target,
+        const std::vector<const AnimationCurveNode*>& curves,
+        const LayerMap& layer_map,
+        int64_t start, int64_t stop,
+        double& max_time,
+        double& min_time);
+
+    // ------------------------------------------------------------------------------------------------
+    aiNodeAnim* GenerateScalingNodeAnim(const std::string& name,
+        const Model& /*target*/,
+        const std::vector<const AnimationCurveNode*>& curves,
+        const LayerMap& layer_map,
+        int64_t start, int64_t stop,
+        double& max_time,
+        double& min_time);
+
+    // ------------------------------------------------------------------------------------------------
+    aiNodeAnim* GenerateTranslationNodeAnim(const std::string& name,
+        const Model& /*target*/,
+        const std::vector<const AnimationCurveNode*>& curves,
+        const LayerMap& layer_map,
+        int64_t start, int64_t stop,
+        double& max_time,
+        double& min_time,
+        bool inverse = false);
+
+    // ------------------------------------------------------------------------------------------------
+    // generate node anim, extracting only Rotation, Scaling and Translation from the given chain
+    aiNodeAnim* GenerateSimpleNodeAnim(const std::string& name,
+        const Model& target,
+        NodeMap::const_iterator chain[TransformationComp_MAXIMUM],
+        NodeMap::const_iterator iter_end,
+        const LayerMap& layer_map,
+        int64_t start, int64_t stop,
+        double& max_time,
+        double& min_time,
+        bool reverse_order = false);
+
+    // key (time), value, mapto (component index)
+    typedef std::tuple<std::shared_ptr<KeyTimeList>, std::shared_ptr<KeyValueList>, unsigned int > KeyFrameList;
+    typedef std::vector<KeyFrameList> KeyFrameListList;
+
+    // ------------------------------------------------------------------------------------------------
+    KeyFrameListList GetKeyframeList(const std::vector<const AnimationCurveNode*>& nodes, int64_t start, int64_t stop);
+
+    // ------------------------------------------------------------------------------------------------
+    KeyTimeList GetKeyTimeList(const KeyFrameListList& inputs);
+
+    // ------------------------------------------------------------------------------------------------
+    void InterpolateKeys(aiVectorKey* valOut, const KeyTimeList& keys, const KeyFrameListList& inputs,
+        const aiVector3D& def_value,
+        double& max_time,
+        double& min_time);
+
+    // ------------------------------------------------------------------------------------------------
+    void InterpolateKeys(aiQuatKey* valOut, const KeyTimeList& keys, const KeyFrameListList& inputs,
+        const aiVector3D& def_value,
+        double& maxTime,
+        double& minTime,
+        Model::RotOrder order);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertTransformOrder_TRStoSRT(aiQuatKey* out_quat, aiVectorKey* out_scale,
+        aiVectorKey* out_translation,
+        const KeyFrameListList& scaling,
+        const KeyFrameListList& translation,
+        const KeyFrameListList& rotation,
+        const KeyTimeList& times,
+        double& maxTime,
+        double& minTime,
+        Model::RotOrder order,
+        const aiVector3D& def_scale,
+        const aiVector3D& def_translate,
+        const aiVector3D& def_rotation);
+
+    // ------------------------------------------------------------------------------------------------
+    // euler xyz -> quat
+    aiQuaternion EulerToQuaternion(const aiVector3D& rot, Model::RotOrder order);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertScaleKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes, const LayerMap& /*layers*/,
+        int64_t start, int64_t stop,
+        double& maxTime,
+        double& minTime);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertTranslationKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes,
+        const LayerMap& /*layers*/,
+        int64_t start, int64_t stop,
+        double& maxTime,
+        double& minTime);
+
+    // ------------------------------------------------------------------------------------------------
+    void ConvertRotationKeys(aiNodeAnim* na, const std::vector<const AnimationCurveNode*>& nodes,
+        const LayerMap& /*layers*/,
+        int64_t start, int64_t stop,
+        double& maxTime,
+        double& minTime,
+        Model::RotOrder order);
+
+    void ConvertGlobalSettings();
+
+    // ------------------------------------------------------------------------------------------------
+    // copy generated meshes, animations, lights, cameras and textures to the output scene
+    void TransferDataToScene();
+
+private:
+    // 0: not assigned yet, others: index is value - 1
+    unsigned int defaultMaterialIndex;
+
+    std::vector<aiMesh*> meshes;
+    std::vector<aiMaterial*> materials;
+    std::vector<aiAnimation*> animations;
+    std::vector<aiLight*> lights;
+    std::vector<aiCamera*> cameras;
+    std::vector<aiTexture*> textures;
+
+    using MaterialMap = std::map<const Material*, unsigned int>;
+    MaterialMap materials_converted;
+
+    using VideoMap = std::map<const Video*, unsigned int>;
+    VideoMap textures_converted;
+
+    using MeshMap = std::map<const Geometry*, std::vector<unsigned int> >;
+    MeshMap meshes_converted;
+
+    // fixed node name -> which trafo chain components have animations?
+    using NodeAnimBitMap = std::map<std::string, unsigned int> ;
+    NodeAnimBitMap node_anim_chain_bits;
+
+    // number of nodes with the same name
+    using NodeAnimNameMap = std::unordered_map<std::string, unsigned int>;
+    NodeAnimNameMap mNodeNameInstances;
+
+    using NodeNameCache = std::unordered_set<std::string>;
+    NodeNameCache mNodeNames;
+
+    double anim_fps;
+
+    aiScene* const out;
+    const FBX::Document& doc;
+};
+
+}
+}
+
+#endif // INCLUDED_AI_FBX_CONVERTER_H
diff --git a/thirdparty/assimp/code/FBXDeformer.cpp b/thirdparty/assimp/code/FBXDeformer.cpp
new file mode 100644
index 0000000000..6927553450
--- /dev/null
+++ b/thirdparty/assimp/code/FBXDeformer.cpp
@@ -0,0 +1,213 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXNoteAttribute.cpp
+ *  @brief Assimp::FBX::NodeAttribute (and subclasses) implementation
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXParser.h"
+#include "FBXDocument.h"
+#include "FBXMeshGeometry.h"
+#include "FBXImporter.h"
+#include "FBXDocumentUtil.h"
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+Deformer::Deformer(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+    : Object(id,element,name)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const std::string& classname = ParseTokenAsString(GetRequiredToken(element,2));
+    props = GetPropertyTable(doc,"Deformer.Fbx" + classname,element,sc,true);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Deformer::~Deformer()
+{
+
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Cluster::Cluster(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: Deformer(id,element,doc,name)
+, node()
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const Element* const Indexes = sc["Indexes"];
+    const Element* const Weights = sc["Weights"];
+
+    const Element& Transform = GetRequiredElement(sc,"Transform",&element);
+    const Element& TransformLink = GetRequiredElement(sc,"TransformLink",&element);
+
+    transform = ReadMatrix(Transform);
+    transformLink = ReadMatrix(TransformLink);
+
+    // it is actually possible that there be Deformer's with no weights
+    if (!!Indexes != !!Weights) {
+        DOMError("either Indexes or Weights are missing from Cluster",&element);
+    }
+
+    if(Indexes) {
+        ParseVectorDataArray(indices,*Indexes);
+        ParseVectorDataArray(weights,*Weights);
+    }
+
+    if(indices.size() != weights.size()) {
+        DOMError("sizes of index and weight array don't match up",&element);
+    }
+
+    // read assigned node
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Model");
+    for(const Connection* con : conns) {
+        const Model* const mod = ProcessSimpleConnection<Model>(*con, false, "Model -> Cluster", element);
+        if(mod) {
+            node = mod;
+            break;
+        }
+    }
+
+    if (!node) {
+        DOMError("failed to read target Node for Cluster",&element);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Cluster::~Cluster()
+{
+
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Skin::Skin(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: Deformer(id,element,doc,name)
+, accuracy( 0.0f ) {
+    const Scope& sc = GetRequiredScope(element);
+
+    const Element* const Link_DeformAcuracy = sc["Link_DeformAcuracy"];
+    if(Link_DeformAcuracy) {
+        accuracy = ParseTokenAsFloat(GetRequiredToken(*Link_DeformAcuracy,0));
+    }
+
+    // resolve assigned clusters
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Deformer");
+
+    clusters.reserve(conns.size());
+    for(const Connection* con : conns) {
+
+        const Cluster* const cluster = ProcessSimpleConnection<Cluster>(*con, false, "Cluster -> Skin", element);
+        if(cluster) {
+            clusters.push_back(cluster);
+            continue;
+        }
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Skin::~Skin()
+{
+
+}
+// ------------------------------------------------------------------------------------------------
+BlendShape::BlendShape(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+    : Deformer(id, element, doc, name)
+{
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(), "Deformer");
+    blendShapeChannels.reserve(conns.size());
+    for (const Connection* con : conns) {
+        const BlendShapeChannel* const bspc = ProcessSimpleConnection<BlendShapeChannel>(*con, false, "BlendShapeChannel -> BlendShape", element);
+        if (bspc) {
+            blendShapeChannels.push_back(bspc);
+            continue;
+        }
+    }
+}
+// ------------------------------------------------------------------------------------------------
+BlendShape::~BlendShape()
+{
+
+}
+// ------------------------------------------------------------------------------------------------
+BlendShapeChannel::BlendShapeChannel(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+    : Deformer(id, element, doc, name)
+{
+    const Scope& sc = GetRequiredScope(element);
+    const Element* const DeformPercent = sc["DeformPercent"];
+    if (DeformPercent) {
+        percent = ParseTokenAsFloat(GetRequiredToken(*DeformPercent, 0));
+    }
+    const Element* const FullWeights = sc["FullWeights"];
+    if (FullWeights) {
+        ParseVectorDataArray(fullWeights, *FullWeights);
+    }
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(), "Geometry");
+    shapeGeometries.reserve(conns.size());
+    for (const Connection* con : conns) {
+        const ShapeGeometry* const sg = ProcessSimpleConnection<ShapeGeometry>(*con, false, "Shape -> BlendShapeChannel", element);
+        if (sg) {
+            shapeGeometries.push_back(sg);
+            continue;
+        }
+    }
+}
+// ------------------------------------------------------------------------------------------------
+BlendShapeChannel::~BlendShapeChannel()
+{
+
+}
+// ------------------------------------------------------------------------------------------------
+}
+}
+#endif
+
diff --git a/thirdparty/assimp/code/FBXDocument.cpp b/thirdparty/assimp/code/FBXDocument.cpp
new file mode 100644
index 0000000000..1af08fe6d8
--- /dev/null
+++ b/thirdparty/assimp/code/FBXDocument.cpp
@@ -0,0 +1,726 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the*
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXDocument.cpp
+ *  @brief Implementation of the FBX DOM classes
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXDocument.h"
+#include "FBXMeshGeometry.h"
+#include "FBXParser.h"
+#include "FBXUtil.h"
+#include "FBXImporter.h"
+#include "FBXImportSettings.h"
+#include "FBXDocumentUtil.h"
+#include "FBXProperties.h"
+
+#include <memory>
+#include <functional>
+#include <map>
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+LazyObject::LazyObject(uint64_t id, const Element& element, const Document& doc)
+: doc(doc)
+, element(element)
+, id(id)
+, flags() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+LazyObject::~LazyObject()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+const Object* LazyObject::Get(bool dieOnError)
+{
+    if(IsBeingConstructed() || FailedToConstruct()) {
+        return nullptr;
+    }
+
+    if (object.get()) {
+        return object.get();
+    }
+
+    // if this is the root object, we return a dummy since there
+    // is no root object int he fbx file - it is just referenced
+    // with id 0.
+    if(id == 0L) {
+        object.reset(new Object(id, element, "Model::RootNode"));
+        return object.get();
+    }
+
+    const Token& key = element.KeyToken();
+    const TokenList& tokens = element.Tokens();
+
+    if(tokens.size() < 3) {
+        DOMError("expected at least 3 tokens: id, name and class tag",&element);
+    }
+
+    const char* err;
+    std::string name = ParseTokenAsString(*tokens[1],err);
+    if (err) {
+        DOMError(err,&element);
+    }
+
+    // small fix for binary reading: binary fbx files don't use
+    // prefixes such as Model:: in front of their names. The
+    // loading code expects this at many places, though!
+    // so convert the binary representation (a 0x0001) to the
+    // double colon notation.
+    if(tokens[1]->IsBinary()) {
+        for (size_t i = 0; i < name.length(); ++i) {
+            if (name[i] == 0x0 && name[i+1] == 0x1) {
+                name = name.substr(i+2) + "::" + name.substr(0,i);
+            }
+        }
+    }
+
+    const std::string classtag = ParseTokenAsString(*tokens[2],err);
+    if (err) {
+        DOMError(err,&element);
+    }
+
+    // prevent recursive calls
+    flags |= BEING_CONSTRUCTED;
+
+    try {
+        // this needs to be relatively fast since it happens a lot,
+        // so avoid constructing strings all the time.
+        const char* obtype = key.begin();
+        const size_t length = static_cast<size_t>(key.end()-key.begin());
+
+        // For debugging
+        //dumpObjectClassInfo( objtype, classtag );
+
+        if (!strncmp(obtype,"Geometry",length)) {
+            if (!strcmp(classtag.c_str(),"Mesh")) {
+                object.reset(new MeshGeometry(id,element,name,doc));
+            }
+            if (!strcmp(classtag.c_str(), "Shape")) {
+                object.reset(new ShapeGeometry(id, element, name, doc));
+            }
+            if (!strcmp(classtag.c_str(), "Line")) {
+                object.reset(new LineGeometry(id, element, name, doc));
+            }
+        }
+        else if (!strncmp(obtype,"NodeAttribute",length)) {
+            if (!strcmp(classtag.c_str(),"Camera")) {
+                object.reset(new Camera(id,element,doc,name));
+            }
+            else if (!strcmp(classtag.c_str(),"CameraSwitcher")) {
+                object.reset(new CameraSwitcher(id,element,doc,name));
+            }
+            else if (!strcmp(classtag.c_str(),"Light")) {
+                object.reset(new Light(id,element,doc,name));
+            }
+            else if (!strcmp(classtag.c_str(),"Null")) {
+                object.reset(new Null(id,element,doc,name));
+            }
+            else if (!strcmp(classtag.c_str(),"LimbNode")) {
+                object.reset(new LimbNode(id,element,doc,name));
+            }
+        }
+        else if (!strncmp(obtype,"Deformer",length)) {
+            if (!strcmp(classtag.c_str(),"Cluster")) {
+                object.reset(new Cluster(id,element,doc,name));
+            }
+            else if (!strcmp(classtag.c_str(),"Skin")) {
+                object.reset(new Skin(id,element,doc,name));
+            }
+            else if (!strcmp(classtag.c_str(), "BlendShape")) {
+                object.reset(new BlendShape(id, element, doc, name));
+            }
+            else if (!strcmp(classtag.c_str(), "BlendShapeChannel")) {
+                object.reset(new BlendShapeChannel(id, element, doc, name));
+            }
+        }
+        else if ( !strncmp( obtype, "Model", length ) ) {
+            // FK and IK effectors are not supported
+            if ( strcmp( classtag.c_str(), "IKEffector" ) && strcmp( classtag.c_str(), "FKEffector" ) ) {
+                object.reset( new Model( id, element, doc, name ) );
+            }
+        }
+        else if (!strncmp(obtype,"Material",length)) {
+            object.reset(new Material(id,element,doc,name));
+        }
+        else if (!strncmp(obtype,"Texture",length)) {
+            object.reset(new Texture(id,element,doc,name));
+        }
+        else if (!strncmp(obtype,"LayeredTexture",length)) {
+            object.reset(new LayeredTexture(id,element,doc,name));
+        }
+        else if (!strncmp(obtype,"Video",length)) {
+            object.reset(new Video(id,element,doc,name));
+        }
+        else if (!strncmp(obtype,"AnimationStack",length)) {
+            object.reset(new AnimationStack(id,element,name,doc));
+        }
+        else if (!strncmp(obtype,"AnimationLayer",length)) {
+            object.reset(new AnimationLayer(id,element,name,doc));
+        }
+        // note: order matters for these two
+        else if (!strncmp(obtype,"AnimationCurve",length)) {
+            object.reset(new AnimationCurve(id,element,name,doc));
+        }
+        else if (!strncmp(obtype,"AnimationCurveNode",length)) {
+            object.reset(new AnimationCurveNode(id,element,name,doc));
+        }
+    }
+    catch(std::exception& ex) {
+        flags &= ~BEING_CONSTRUCTED;
+        flags |= FAILED_TO_CONSTRUCT;
+
+        if(dieOnError || doc.Settings().strictMode) {
+            throw;
+        }
+
+        // note: the error message is already formatted, so raw logging is ok
+        if(!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_ERROR(ex.what());
+        }
+        return NULL;
+    }
+
+    if (!object.get()) {
+        //DOMError("failed to convert element to DOM object, class: " + classtag + ", name: " + name,&element);
+    }
+
+    flags &= ~BEING_CONSTRUCTED;
+    return object.get();
+}
+
+// ------------------------------------------------------------------------------------------------
+Object::Object(uint64_t id, const Element& element, const std::string& name)
+: element(element)
+, name(name)
+, id(id)
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+Object::~Object()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+FileGlobalSettings::FileGlobalSettings(const Document& doc, std::shared_ptr<const PropertyTable> props)
+: props(props)
+, doc(doc)
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+FileGlobalSettings::~FileGlobalSettings()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+Document::Document(const Parser& parser, const ImportSettings& settings)
+: settings(settings)
+, parser(parser)
+{
+    // Cannot use array default initialization syntax because vc8 fails on it
+    for (auto &timeStamp : creationTimeStamp) {
+        timeStamp = 0;
+    }
+
+    ReadHeader();
+    ReadPropertyTemplates();
+
+    ReadGlobalSettings();
+
+    // This order is important, connections need parsed objects to check
+    // whether connections are ok or not. Objects may not be evaluated yet,
+    // though, since this may require valid connections.
+    ReadObjects();
+    ReadConnections();
+}
+
+// ------------------------------------------------------------------------------------------------
+Document::~Document()
+{
+    for(ObjectMap::value_type& v : objects) {
+        delete v.second;
+    }
+
+    for(ConnectionMap::value_type& v : src_connections) {
+        delete v.second;
+    }
+    // |dest_connections| contain the same Connection objects as the |src_connections|
+}
+
+// ------------------------------------------------------------------------------------------------
+static const unsigned int LowerSupportedVersion = 7100;
+static const unsigned int UpperSupportedVersion = 7400;
+
+void Document::ReadHeader() {
+    // Read ID objects from "Objects" section
+    const Scope& sc = parser.GetRootScope();
+    const Element* const ehead = sc["FBXHeaderExtension"];
+    if(!ehead || !ehead->Compound()) {
+        DOMError("no FBXHeaderExtension dictionary found");
+    }
+
+    const Scope& shead = *ehead->Compound();
+    fbxVersion = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(shead,"FBXVersion",ehead),0));
+
+    // While we may have some success with newer files, we don't support
+    // the older 6.n fbx format
+    if(fbxVersion < LowerSupportedVersion ) {
+        DOMError("unsupported, old format version, supported are only FBX 2011, FBX 2012 and FBX 2013");
+    }
+    if(fbxVersion > UpperSupportedVersion ) {
+        if(Settings().strictMode) {
+            DOMError("unsupported, newer format version, supported are only FBX 2011, FBX 2012 and FBX 2013"
+                " (turn off strict mode to try anyhow) ");
+        }
+        else {
+            DOMWarning("unsupported, newer format version, supported are only FBX 2011, FBX 2012 and FBX 2013,"
+                " trying to read it nevertheless");
+        }
+    }
+
+    const Element* const ecreator = shead["Creator"];
+    if(ecreator) {
+        creator = ParseTokenAsString(GetRequiredToken(*ecreator,0));
+    }
+
+    const Element* const etimestamp = shead["CreationTimeStamp"];
+    if(etimestamp && etimestamp->Compound()) {
+        const Scope& stimestamp = *etimestamp->Compound();
+        creationTimeStamp[0] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Year"),0));
+        creationTimeStamp[1] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Month"),0));
+        creationTimeStamp[2] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Day"),0));
+        creationTimeStamp[3] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Hour"),0));
+        creationTimeStamp[4] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Minute"),0));
+        creationTimeStamp[5] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Second"),0));
+        creationTimeStamp[6] = ParseTokenAsInt(GetRequiredToken(GetRequiredElement(stimestamp,"Millisecond"),0));
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Document::ReadGlobalSettings()
+{
+    const Scope& sc = parser.GetRootScope();
+    const Element* const ehead = sc["GlobalSettings"];
+    if ( nullptr == ehead || !ehead->Compound() ) {
+        DOMWarning( "no GlobalSettings dictionary found" );
+        globals.reset(new FileGlobalSettings(*this, std::make_shared<const PropertyTable>()));
+        return;
+    }
+
+    std::shared_ptr<const PropertyTable> props = GetPropertyTable( *this, "", *ehead, *ehead->Compound(), true );
+
+    //double v = PropertyGet<float>( *props.get(), std::string("UnitScaleFactor"), 1.0 );
+
+    if(!props) {
+        DOMError("GlobalSettings dictionary contains no property table");
+    }
+
+    globals.reset(new FileGlobalSettings(*this, props));
+}
+
+// ------------------------------------------------------------------------------------------------
+void Document::ReadObjects()
+{
+    // read ID objects from "Objects" section
+    const Scope& sc = parser.GetRootScope();
+    const Element* const eobjects = sc["Objects"];
+    if(!eobjects || !eobjects->Compound()) {
+        DOMError("no Objects dictionary found");
+    }
+
+    // add a dummy entry to represent the Model::RootNode object (id 0),
+    // which is only indirectly defined in the input file
+    objects[0] = new LazyObject(0L, *eobjects, *this);
+
+    const Scope& sobjects = *eobjects->Compound();
+    for(const ElementMap::value_type& el : sobjects.Elements()) {
+
+        // extract ID
+        const TokenList& tok = el.second->Tokens();
+
+        if (tok.empty()) {
+            DOMError("expected ID after object key",el.second);
+        }
+
+        const char* err;
+        const uint64_t id = ParseTokenAsID(*tok[0], err);
+        if(err) {
+            DOMError(err,el.second);
+        }
+
+        // id=0 is normally implicit
+        if(id == 0L) {
+            DOMError("encountered object with implicitly defined id 0",el.second);
+        }
+
+        if(objects.find(id) != objects.end()) {
+            DOMWarning("encountered duplicate object id, ignoring first occurrence",el.second);
+        }
+
+        objects[id] = new LazyObject(id, *el.second, *this);
+
+        // grab all animation stacks upfront since there is no listing of them
+        if(!strcmp(el.first.c_str(),"AnimationStack")) {
+            animationStacks.push_back(id);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Document::ReadPropertyTemplates()
+{
+    const Scope& sc = parser.GetRootScope();
+    // read property templates from "Definitions" section
+    const Element* const edefs = sc["Definitions"];
+    if(!edefs || !edefs->Compound()) {
+        DOMWarning("no Definitions dictionary found");
+        return;
+    }
+
+    const Scope& sdefs = *edefs->Compound();
+    const ElementCollection otypes = sdefs.GetCollection("ObjectType");
+    for(ElementMap::const_iterator it = otypes.first; it != otypes.second; ++it) {
+        const Element& el = *(*it).second;
+        const Scope* sc = el.Compound();
+        if(!sc) {
+            DOMWarning("expected nested scope in ObjectType, ignoring",&el);
+            continue;
+        }
+
+        const TokenList& tok = el.Tokens();
+        if(tok.empty()) {
+            DOMWarning("expected name for ObjectType element, ignoring",&el);
+            continue;
+        }
+
+        const std::string& oname = ParseTokenAsString(*tok[0]);
+
+        const ElementCollection templs = sc->GetCollection("PropertyTemplate");
+        for(ElementMap::const_iterator it = templs.first; it != templs.second; ++it) {
+            const Element& el = *(*it).second;
+            const Scope* sc = el.Compound();
+            if(!sc) {
+                DOMWarning("expected nested scope in PropertyTemplate, ignoring",&el);
+                continue;
+            }
+
+            const TokenList& tok = el.Tokens();
+            if(tok.empty()) {
+                DOMWarning("expected name for PropertyTemplate element, ignoring",&el);
+                continue;
+            }
+
+            const std::string& pname = ParseTokenAsString(*tok[0]);
+
+            const Element* Properties70 = (*sc)["Properties70"];
+            if(Properties70) {
+                std::shared_ptr<const PropertyTable> props = std::make_shared<const PropertyTable>(
+                    *Properties70,std::shared_ptr<const PropertyTable>(static_cast<const PropertyTable*>(NULL))
+                );
+
+                templates[oname+"."+pname] = props;
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void Document::ReadConnections()
+{
+    const Scope& sc = parser.GetRootScope();
+    // read property templates from "Definitions" section
+    const Element* const econns = sc["Connections"];
+    if(!econns || !econns->Compound()) {
+        DOMError("no Connections dictionary found");
+    }
+
+    uint64_t insertionOrder = 0l;
+    const Scope& sconns = *econns->Compound();
+    const ElementCollection conns = sconns.GetCollection("C");
+    for(ElementMap::const_iterator it = conns.first; it != conns.second; ++it) {
+        const Element& el = *(*it).second;
+        const std::string& type = ParseTokenAsString(GetRequiredToken(el,0));
+
+        // PP = property-property connection, ignored for now
+        // (tokens: "PP", ID1, "Property1", ID2, "Property2")
+        if ( type == "PP" ) {
+            continue;
+        }
+
+        const uint64_t src = ParseTokenAsID(GetRequiredToken(el,1));
+        const uint64_t dest = ParseTokenAsID(GetRequiredToken(el,2));
+
+        // OO = object-object connection
+        // OP = object-property connection, in which case the destination property follows the object ID
+        const std::string& prop = (type == "OP" ? ParseTokenAsString(GetRequiredToken(el,3)) : "");
+
+        if(objects.find(src) == objects.end()) {
+            DOMWarning("source object for connection does not exist",&el);
+            continue;
+        }
+
+        // dest may be 0 (root node) but we added a dummy object before
+        if(objects.find(dest) == objects.end()) {
+            DOMWarning("destination object for connection does not exist",&el);
+            continue;
+        }
+
+        // add new connection
+        const Connection* const c = new Connection(insertionOrder++,src,dest,prop,*this);
+        src_connections.insert(ConnectionMap::value_type(src,c));
+        dest_connections.insert(ConnectionMap::value_type(dest,c));
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<const AnimationStack*>& Document::AnimationStacks() const
+{
+    if (!animationStacksResolved.empty() || animationStacks.empty()) {
+        return animationStacksResolved;
+    }
+
+    animationStacksResolved.reserve(animationStacks.size());
+    for(uint64_t id : animationStacks) {
+        LazyObject* const lazy = GetObject(id);
+        const AnimationStack* stack;
+        if(!lazy || !(stack = lazy->Get<AnimationStack>())) {
+            DOMWarning("failed to read AnimationStack object");
+            continue;
+        }
+        animationStacksResolved.push_back(stack);
+    }
+
+    return animationStacksResolved;
+}
+
+// ------------------------------------------------------------------------------------------------
+LazyObject* Document::GetObject(uint64_t id) const
+{
+    ObjectMap::const_iterator it = objects.find(id);
+    return it == objects.end() ? nullptr : (*it).second;
+}
+
+#define MAX_CLASSNAMES 6
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsSequenced(uint64_t id, const ConnectionMap& conns) const
+{
+    std::vector<const Connection*> temp;
+
+    const std::pair<ConnectionMap::const_iterator,ConnectionMap::const_iterator> range =
+        conns.equal_range(id);
+
+    temp.reserve(std::distance(range.first,range.second));
+    for (ConnectionMap::const_iterator it = range.first; it != range.second; ++it) {
+        temp.push_back((*it).second);
+    }
+
+    std::sort(temp.begin(), temp.end(), std::mem_fn(&Connection::Compare));
+
+    return temp; // NRVO should handle this
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsSequenced(uint64_t id, bool is_src,
+    const ConnectionMap& conns,
+    const char* const* classnames,
+    size_t count) const
+
+{
+    ai_assert(classnames);
+    ai_assert( count != 0 );
+    ai_assert( count <= MAX_CLASSNAMES);
+
+    size_t lengths[MAX_CLASSNAMES];
+
+    const size_t c = count;
+    for (size_t i = 0; i < c; ++i) {
+        lengths[ i ] = strlen(classnames[i]);
+    }
+
+    std::vector<const Connection*> temp;
+    const std::pair<ConnectionMap::const_iterator,ConnectionMap::const_iterator> range =
+        conns.equal_range(id);
+
+    temp.reserve(std::distance(range.first,range.second));
+    for (ConnectionMap::const_iterator it = range.first; it != range.second; ++it) {
+        const Token& key = (is_src
+            ? (*it).second->LazyDestinationObject()
+            : (*it).second->LazySourceObject()
+        ).GetElement().KeyToken();
+
+        const char* obtype = key.begin();
+
+        for (size_t i = 0; i < c; ++i) {
+            ai_assert(classnames[i]);
+            if(static_cast<size_t>(std::distance(key.begin(),key.end())) == lengths[i] && !strncmp(classnames[i],obtype,lengths[i])) {
+                obtype = nullptr;
+                break;
+            }
+        }
+
+        if(obtype) {
+            continue;
+        }
+
+        temp.push_back((*it).second);
+    }
+
+    std::sort(temp.begin(), temp.end(), std::mem_fn(&Connection::Compare));
+    return temp; // NRVO should handle this
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsBySourceSequenced(uint64_t source) const
+{
+    return GetConnectionsSequenced(source, ConnectionsBySource());
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsBySourceSequenced(uint64_t src, const char* classname) const
+{
+    const char* arr[] = {classname};
+    return GetConnectionsBySourceSequenced(src, arr,1);
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsBySourceSequenced(uint64_t source, 
+        const char* const* classnames, size_t count) const
+{
+    return GetConnectionsSequenced(source, true, ConnectionsBySource(),classnames, count);
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsByDestinationSequenced(uint64_t dest,
+        const char* classname) const
+{
+    const char* arr[] = {classname};
+    return GetConnectionsByDestinationSequenced(dest, arr,1);
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsByDestinationSequenced(uint64_t dest) const
+{
+    return GetConnectionsSequenced(dest, ConnectionsByDestination());
+}
+
+// ------------------------------------------------------------------------------------------------
+std::vector<const Connection*> Document::GetConnectionsByDestinationSequenced(uint64_t dest,
+    const char* const* classnames, size_t count) const
+
+{
+    return GetConnectionsSequenced(dest, false, ConnectionsByDestination(),classnames, count);
+}
+
+// ------------------------------------------------------------------------------------------------
+Connection::Connection(uint64_t insertionOrder,  uint64_t src, uint64_t dest, const std::string& prop,
+        const Document& doc)
+
+: insertionOrder(insertionOrder)
+, prop(prop)
+, src(src)
+, dest(dest)
+, doc(doc)
+{
+    ai_assert(doc.Objects().find(src) != doc.Objects().end());
+    // dest may be 0 (root node)
+    ai_assert(!dest || doc.Objects().find(dest) != doc.Objects().end());
+}
+
+// ------------------------------------------------------------------------------------------------
+Connection::~Connection()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+LazyObject& Connection::LazySourceObject() const
+{
+    LazyObject* const lazy = doc.GetObject(src);
+    ai_assert(lazy);
+    return *lazy;
+}
+
+// ------------------------------------------------------------------------------------------------
+LazyObject& Connection::LazyDestinationObject() const
+{
+    LazyObject* const lazy = doc.GetObject(dest);
+    ai_assert(lazy);
+    return *lazy;
+}
+
+// ------------------------------------------------------------------------------------------------
+const Object* Connection::SourceObject() const
+{
+    LazyObject* const lazy = doc.GetObject(src);
+    ai_assert(lazy);
+    return lazy->Get();
+}
+
+// ------------------------------------------------------------------------------------------------
+const Object* Connection::DestinationObject() const
+{
+    LazyObject* const lazy = doc.GetObject(dest);
+    ai_assert(lazy);
+    return lazy->Get();
+}
+
+} // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXDocument.h b/thirdparty/assimp/code/FBXDocument.h
new file mode 100644
index 0000000000..c849defdcd
--- /dev/null
+++ b/thirdparty/assimp/code/FBXDocument.h
@@ -0,0 +1,1180 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXDocument.h
+ *  @brief FBX DOM
+ */
+#ifndef INCLUDED_AI_FBX_DOCUMENT_H
+#define INCLUDED_AI_FBX_DOCUMENT_H
+
+#include <numeric>
+#include <stdint.h>
+#include <assimp/mesh.h>
+#include "FBXProperties.h"
+#include "FBXParser.h"
+
+#define _AI_CONCAT(a,b)  a ## b
+#define  AI_CONCAT(a,b)  _AI_CONCAT(a,b)
+
+namespace Assimp {
+namespace FBX {
+
+class Parser;
+class Object;
+struct ImportSettings;
+
+class PropertyTable;
+class Document;
+class Material;
+class ShapeGeometry;
+class LineGeometry;
+class Geometry;
+
+class Video;
+
+class AnimationCurve;
+class AnimationCurveNode;
+class AnimationLayer;
+class AnimationStack;
+
+class BlendShapeChannel;
+class BlendShape;
+class Skin;
+class Cluster;
+
+
+/** Represents a delay-parsed FBX objects. Many objects in the scene
+ *  are not needed by assimp, so it makes no sense to parse them
+ *  upfront. */
+class LazyObject {
+public:
+    LazyObject(uint64_t id, const Element& element, const Document& doc);
+
+    ~LazyObject();
+
+    const Object* Get(bool dieOnError = false);
+
+    template <typename T>
+    const T* Get(bool dieOnError = false) {
+        const Object* const ob = Get(dieOnError);
+        return ob ? dynamic_cast<const T*>(ob) : NULL;
+    }
+
+    uint64_t ID() const {
+        return id;
+    }
+
+    bool IsBeingConstructed() const {
+        return (flags & BEING_CONSTRUCTED) != 0;
+    }
+
+    bool FailedToConstruct() const {
+        return (flags & FAILED_TO_CONSTRUCT) != 0;
+    }
+
+    const Element& GetElement() const {
+        return element;
+    }
+
+    const Document& GetDocument() const {
+        return doc;
+    }
+
+private:
+    const Document& doc;
+    const Element& element;
+    std::unique_ptr<const Object> object;
+
+    const uint64_t id;
+
+    enum Flags {
+        BEING_CONSTRUCTED = 0x1,
+        FAILED_TO_CONSTRUCT = 0x2
+    };
+
+    unsigned int flags;
+};
+
+/** Base class for in-memory (DOM) representations of FBX objects */
+class Object {
+public:
+    Object(uint64_t id, const Element& element, const std::string& name);
+
+    virtual ~Object();
+
+    const Element& SourceElement() const {
+        return element;
+    }
+
+    const std::string& Name() const {
+        return name;
+    }
+
+    uint64_t ID() const {
+        return id;
+    }
+
+protected:
+    const Element& element;
+    const std::string name;
+    const uint64_t id;
+};
+
+/** DOM class for generic FBX NoteAttribute blocks. NoteAttribute's just hold a property table,
+ *  fixed members are added by deriving classes. */
+class NodeAttribute : public Object {
+public:
+    NodeAttribute(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~NodeAttribute();
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+private:
+    std::shared_ptr<const PropertyTable> props;
+};
+
+/** DOM base class for FBX camera settings attached to a node */
+class CameraSwitcher : public NodeAttribute {
+public:
+    CameraSwitcher(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~CameraSwitcher();
+
+    int CameraID() const {
+        return cameraId;
+    }
+
+    const std::string& CameraName() const {
+        return cameraName;
+    }
+
+    const std::string& CameraIndexName() const {
+        return cameraIndexName;
+    }
+
+private:
+    int cameraId;
+    std::string cameraName;
+    std::string cameraIndexName;
+};
+
+#define fbx_stringize(a) #a
+
+#define fbx_simple_property(name, type, default_value) \
+    type name() const { \
+        return PropertyGet<type>(Props(), fbx_stringize(name), (default_value)); \
+    }
+
+// XXX improve logging
+#define fbx_simple_enum_property(name, type, default_value) \
+    type name() const { \
+        const int ival = PropertyGet<int>(Props(), fbx_stringize(name), static_cast<int>(default_value)); \
+        if (ival < 0 || ival >= AI_CONCAT(type, _MAX)) { \
+            ai_assert(static_cast<int>(default_value) >= 0 && static_cast<int>(default_value) < AI_CONCAT(type, _MAX)); \
+            return static_cast<type>(default_value); \
+        } \
+        return static_cast<type>(ival); \
+}
+
+
+/** DOM base class for FBX cameras attached to a node */
+class Camera : public NodeAttribute {
+public:
+    Camera(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual  ~Camera();
+
+    fbx_simple_property(Position, aiVector3D, aiVector3D(0,0,0))
+    fbx_simple_property(UpVector, aiVector3D, aiVector3D(0,1,0))
+    fbx_simple_property(InterestPosition, aiVector3D, aiVector3D(0,0,0))
+
+    fbx_simple_property(AspectWidth, float, 1.0f)
+    fbx_simple_property(AspectHeight, float, 1.0f)
+    fbx_simple_property(FilmWidth, float, 1.0f)
+    fbx_simple_property(FilmHeight, float, 1.0f)
+
+    fbx_simple_property(NearPlane, float, 0.1f)
+    fbx_simple_property(FarPlane, float, 100.0f)
+
+    fbx_simple_property(FilmAspectRatio, float, 1.0f)
+    fbx_simple_property(ApertureMode, int, 0)
+
+    fbx_simple_property(FieldOfView, float, 1.0f)
+    fbx_simple_property(FocalLength, float, 1.0f)
+};
+
+/** DOM base class for FBX null markers attached to a node */
+class Null : public NodeAttribute {
+public:
+    Null(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+    virtual ~Null();
+};
+
+/** DOM base class for FBX limb node markers attached to a node */
+class LimbNode : public NodeAttribute {
+public:
+    LimbNode(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+    virtual ~LimbNode();
+};
+
+/** DOM base class for FBX lights attached to a node */
+class Light : public NodeAttribute {
+public:
+    Light(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+    virtual ~Light();
+
+    enum Type
+    {
+        Type_Point,
+        Type_Directional,
+        Type_Spot,
+        Type_Area,
+        Type_Volume,
+
+        Type_MAX // end-of-enum sentinel
+    };
+
+    enum Decay
+    {
+        Decay_None,
+        Decay_Linear,
+        Decay_Quadratic,
+        Decay_Cubic,
+
+        Decay_MAX // end-of-enum sentinel
+    };
+
+    fbx_simple_property(Color, aiVector3D, aiVector3D(1,1,1))
+    fbx_simple_enum_property(LightType, Type, 0)
+    fbx_simple_property(CastLightOnObject, bool, false)
+    fbx_simple_property(DrawVolumetricLight, bool, true)
+    fbx_simple_property(DrawGroundProjection, bool, true)
+    fbx_simple_property(DrawFrontFacingVolumetricLight, bool, false)
+    fbx_simple_property(Intensity, float, 100.0f)
+    fbx_simple_property(InnerAngle, float, 0.0f)
+    fbx_simple_property(OuterAngle, float, 45.0f)
+    fbx_simple_property(Fog, int, 50)
+    fbx_simple_enum_property(DecayType, Decay, 2)
+    fbx_simple_property(DecayStart, float, 1.0f)
+    fbx_simple_property(FileName, std::string, "")
+
+    fbx_simple_property(EnableNearAttenuation, bool, false)
+    fbx_simple_property(NearAttenuationStart, float, 0.0f)
+    fbx_simple_property(NearAttenuationEnd, float, 0.0f)
+    fbx_simple_property(EnableFarAttenuation, bool, false)
+    fbx_simple_property(FarAttenuationStart, float, 0.0f)
+    fbx_simple_property(FarAttenuationEnd, float, 0.0f)
+
+    fbx_simple_property(CastShadows, bool, true)
+    fbx_simple_property(ShadowColor, aiVector3D, aiVector3D(0,0,0))
+
+    fbx_simple_property(AreaLightShape, int, 0)
+
+    fbx_simple_property(LeftBarnDoor, float, 20.0f)
+    fbx_simple_property(RightBarnDoor, float, 20.0f)
+    fbx_simple_property(TopBarnDoor, float, 20.0f)
+    fbx_simple_property(BottomBarnDoor, float, 20.0f)
+    fbx_simple_property(EnableBarnDoor, bool, true)
+};
+
+/** DOM base class for FBX models (even though its semantics are more "node" than "model" */
+class Model : public Object {
+public:
+    enum RotOrder {
+        RotOrder_EulerXYZ = 0,
+        RotOrder_EulerXZY,
+        RotOrder_EulerYZX,
+        RotOrder_EulerYXZ,
+        RotOrder_EulerZXY,
+        RotOrder_EulerZYX,
+
+        RotOrder_SphericXYZ,
+
+        RotOrder_MAX // end-of-enum sentinel
+    };
+
+    enum TransformInheritance {
+        TransformInheritance_RrSs = 0,
+        TransformInheritance_RSrs,
+        TransformInheritance_Rrs,
+
+        TransformInheritance_MAX // end-of-enum sentinel
+    };
+
+    Model(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~Model();
+
+    fbx_simple_property(QuaternionInterpolate, int, 0)
+
+    fbx_simple_property(RotationOffset, aiVector3D, aiVector3D())
+    fbx_simple_property(RotationPivot, aiVector3D, aiVector3D())
+    fbx_simple_property(ScalingOffset, aiVector3D, aiVector3D())
+    fbx_simple_property(ScalingPivot, aiVector3D, aiVector3D())
+    fbx_simple_property(TranslationActive, bool, false)
+
+    fbx_simple_property(TranslationMin, aiVector3D, aiVector3D())
+    fbx_simple_property(TranslationMax, aiVector3D, aiVector3D())
+
+    fbx_simple_property(TranslationMinX, bool, false)
+    fbx_simple_property(TranslationMaxX, bool, false)
+    fbx_simple_property(TranslationMinY, bool, false)
+    fbx_simple_property(TranslationMaxY, bool, false)
+    fbx_simple_property(TranslationMinZ, bool, false)
+    fbx_simple_property(TranslationMaxZ, bool, false)
+
+    fbx_simple_enum_property(RotationOrder, RotOrder, 0)
+    fbx_simple_property(RotationSpaceForLimitOnly, bool, false)
+    fbx_simple_property(RotationStiffnessX, float, 0.0f)
+    fbx_simple_property(RotationStiffnessY, float, 0.0f)
+    fbx_simple_property(RotationStiffnessZ, float, 0.0f)
+    fbx_simple_property(AxisLen, float, 0.0f)
+
+    fbx_simple_property(PreRotation, aiVector3D, aiVector3D())
+    fbx_simple_property(PostRotation, aiVector3D, aiVector3D())
+    fbx_simple_property(RotationActive, bool, false)
+
+    fbx_simple_property(RotationMin, aiVector3D, aiVector3D())
+    fbx_simple_property(RotationMax, aiVector3D, aiVector3D())
+
+    fbx_simple_property(RotationMinX, bool, false)
+    fbx_simple_property(RotationMaxX, bool, false)
+    fbx_simple_property(RotationMinY, bool, false)
+    fbx_simple_property(RotationMaxY, bool, false)
+    fbx_simple_property(RotationMinZ, bool, false)
+    fbx_simple_property(RotationMaxZ, bool, false)
+    fbx_simple_enum_property(InheritType, TransformInheritance, 0)
+
+    fbx_simple_property(ScalingActive, bool, false)
+    fbx_simple_property(ScalingMin, aiVector3D, aiVector3D())
+    fbx_simple_property(ScalingMax, aiVector3D, aiVector3D(1.f,1.f,1.f))
+    fbx_simple_property(ScalingMinX, bool, false)
+    fbx_simple_property(ScalingMaxX, bool, false)
+    fbx_simple_property(ScalingMinY, bool, false)
+    fbx_simple_property(ScalingMaxY, bool, false)
+    fbx_simple_property(ScalingMinZ, bool, false)
+    fbx_simple_property(ScalingMaxZ, bool, false)
+
+    fbx_simple_property(GeometricTranslation, aiVector3D, aiVector3D())
+    fbx_simple_property(GeometricRotation, aiVector3D, aiVector3D())
+    fbx_simple_property(GeometricScaling, aiVector3D, aiVector3D(1.f, 1.f, 1.f))
+
+    fbx_simple_property(MinDampRangeX, float, 0.0f)
+    fbx_simple_property(MinDampRangeY, float, 0.0f)
+    fbx_simple_property(MinDampRangeZ, float, 0.0f)
+    fbx_simple_property(MaxDampRangeX, float, 0.0f)
+    fbx_simple_property(MaxDampRangeY, float, 0.0f)
+    fbx_simple_property(MaxDampRangeZ, float, 0.0f)
+
+    fbx_simple_property(MinDampStrengthX, float, 0.0f)
+    fbx_simple_property(MinDampStrengthY, float, 0.0f)
+    fbx_simple_property(MinDampStrengthZ, float, 0.0f)
+    fbx_simple_property(MaxDampStrengthX, float, 0.0f)
+    fbx_simple_property(MaxDampStrengthY, float, 0.0f)
+    fbx_simple_property(MaxDampStrengthZ, float, 0.0f)
+
+    fbx_simple_property(PreferredAngleX, float, 0.0f)
+    fbx_simple_property(PreferredAngleY, float, 0.0f)
+    fbx_simple_property(PreferredAngleZ, float, 0.0f)
+
+    fbx_simple_property(Show, bool, true)
+    fbx_simple_property(LODBox, bool, false)
+    fbx_simple_property(Freeze, bool, false)
+
+    const std::string& Shading() const {
+        return shading;
+    }
+
+    const std::string& Culling() const {
+        return culling;
+    }
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    /** Get material links */
+    const std::vector<const Material*>& GetMaterials() const {
+        return materials;
+    }
+
+    /** Get geometry links */
+    const std::vector<const Geometry*>& GetGeometry() const {
+        return geometry;
+    }
+
+    /** Get node attachments */
+    const std::vector<const NodeAttribute*>& GetAttributes() const {
+        return attributes;
+    }
+
+    /** convenience method to check if the node has a Null node marker */
+    bool IsNull() const;
+
+private:
+    void ResolveLinks(const Element& element, const Document& doc);
+
+private:
+    std::vector<const Material*> materials;
+    std::vector<const Geometry*> geometry;
+    std::vector<const NodeAttribute*> attributes;
+
+    std::string shading;
+    std::string culling;
+    std::shared_ptr<const PropertyTable> props;
+};
+
+/** DOM class for generic FBX textures */
+class Texture : public Object {
+public:
+    Texture(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~Texture();
+
+    const std::string& Type() const {
+        return type;
+    }
+
+    const std::string& FileName() const {
+        return fileName;
+    }
+
+    const std::string& RelativeFilename() const {
+        return relativeFileName;
+    }
+
+    const std::string& AlphaSource() const {
+        return alphaSource;
+    }
+
+    const aiVector2D& UVTranslation() const {
+        return uvTrans;
+    }
+
+    const aiVector2D& UVScaling() const {
+        return uvScaling;
+    }
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    // return a 4-tuple
+    const unsigned int* Crop() const {
+        return crop;
+    }
+
+    const Video* Media() const {
+        return media;
+    }
+
+private:
+    aiVector2D uvTrans;
+    aiVector2D uvScaling;
+
+    std::string type;
+    std::string relativeFileName;
+    std::string fileName;
+    std::string alphaSource;
+    std::shared_ptr<const PropertyTable> props;
+
+    unsigned int crop[4];
+
+    const Video* media;
+};
+
+/** DOM class for layered FBX textures */
+class LayeredTexture : public Object {
+public:
+    LayeredTexture(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+    virtual ~LayeredTexture();
+
+    // Can only be called after construction of the layered texture object due to construction flag.
+    void fillTexture(const Document& doc);
+
+    enum BlendMode {
+        BlendMode_Translucent,
+        BlendMode_Additive,
+        BlendMode_Modulate,
+        BlendMode_Modulate2,
+        BlendMode_Over,
+        BlendMode_Normal,
+        BlendMode_Dissolve,
+        BlendMode_Darken,
+        BlendMode_ColorBurn,
+        BlendMode_LinearBurn,
+        BlendMode_DarkerColor,
+        BlendMode_Lighten,
+        BlendMode_Screen,
+        BlendMode_ColorDodge,
+        BlendMode_LinearDodge,
+        BlendMode_LighterColor,
+        BlendMode_SoftLight,
+        BlendMode_HardLight,
+        BlendMode_VividLight,
+        BlendMode_LinearLight,
+        BlendMode_PinLight,
+        BlendMode_HardMix,
+        BlendMode_Difference,
+        BlendMode_Exclusion,
+        BlendMode_Subtract,
+        BlendMode_Divide,
+        BlendMode_Hue,
+        BlendMode_Saturation,
+        BlendMode_Color,
+        BlendMode_Luminosity,
+        BlendMode_Overlay,
+        BlendMode_BlendModeCount
+    };
+
+    const Texture* getTexture(int index=0) const
+    {
+		return textures[index];
+
+    }
+	int textureCount() const {
+		return static_cast<int>(textures.size());
+	}
+    BlendMode GetBlendMode() const
+    {
+        return blendMode;
+    }
+    float Alpha()
+    {
+        return alpha;
+    }
+private:
+	std::vector<const Texture*> textures;
+    BlendMode blendMode;
+    float alpha;
+};
+
+typedef std::fbx_unordered_map<std::string, const Texture*> TextureMap;
+typedef std::fbx_unordered_map<std::string, const LayeredTexture*> LayeredTextureMap;
+
+
+/** DOM class for generic FBX videos */
+class Video : public Object {
+public:
+    Video(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~Video();
+
+    const std::string& Type() const {
+        return type;
+    }
+
+    const std::string& FileName() const {
+        return fileName;
+    }
+
+    const std::string& RelativeFilename() const {
+        return relativeFileName;
+    }
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    const uint8_t* Content() const {
+        ai_assert(content);
+        return content;
+    }
+
+    uint32_t ContentLength() const {
+        return contentLength;
+    }
+
+    uint8_t* RelinquishContent() {
+        uint8_t* ptr = content;
+        content = 0;
+        return ptr;
+    }
+
+private:
+    std::string type;
+    std::string relativeFileName;
+    std::string fileName;
+    std::shared_ptr<const PropertyTable> props;
+
+    uint32_t contentLength;
+    uint8_t* content;
+};
+
+/** DOM class for generic FBX materials */
+class Material : public Object {
+public:
+    Material(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~Material();
+
+    const std::string& GetShadingModel() const {
+        return shading;
+    }
+
+    bool IsMultilayer() const {
+        return multilayer;
+    }
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    const TextureMap& Textures() const {
+        return textures;
+    }
+
+    const LayeredTextureMap& LayeredTextures() const {
+        return layeredTextures;
+    }
+
+private:
+    std::string shading;
+    bool multilayer;
+    std::shared_ptr<const PropertyTable> props;
+
+    TextureMap textures;
+    LayeredTextureMap layeredTextures;
+};
+
+typedef std::vector<int64_t> KeyTimeList;
+typedef std::vector<float> KeyValueList;
+
+/** Represents a FBX animation curve (i.e. a 1-dimensional set of keyframes and values therefor) */
+class AnimationCurve : public Object {
+public:
+    AnimationCurve(uint64_t id, const Element& element, const std::string& name, const Document& doc);
+    virtual ~AnimationCurve();
+
+    /** get list of keyframe positions (time).
+     *  Invariant: |GetKeys()| > 0 */
+    const KeyTimeList& GetKeys() const {
+        return keys;
+    }
+
+    /** get list of keyframe values.
+      * Invariant: |GetKeys()| == |GetValues()| && |GetKeys()| > 0*/
+    const KeyValueList& GetValues() const {
+        return values;
+    }
+
+    const std::vector<float>& GetAttributes() const {
+        return attributes;
+    }
+
+    const std::vector<unsigned int>& GetFlags() const {
+        return flags;
+    }
+
+private:
+    KeyTimeList keys;
+    KeyValueList values;
+    std::vector<float> attributes;
+    std::vector<unsigned int> flags;
+};
+
+// property-name -> animation curve
+typedef std::map<std::string, const AnimationCurve*> AnimationCurveMap;
+
+/** Represents a FBX animation curve (i.e. a mapping from single animation curves to nodes) */
+class AnimationCurveNode : public Object {
+public:
+    /* the optional white list specifies a list of property names for which the caller
+    wants animations for. If the curve node does not match one of these, std::range_error
+    will be thrown. */
+    AnimationCurveNode(uint64_t id, const Element& element, const std::string& name, const Document& doc,
+        const char* const * target_prop_whitelist = NULL, size_t whitelist_size = 0);
+
+    virtual ~AnimationCurveNode();
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+
+    const AnimationCurveMap& Curves() const;
+
+    /** Object the curve is assigned to, this can be NULL if the
+     *  target object has no DOM representation or could not
+     *  be read for other reasons.*/
+    const Object* Target() const {
+        return target;
+    }
+
+    const Model* TargetAsModel() const {
+        return dynamic_cast<const Model*>(target);
+    }
+
+    const NodeAttribute* TargetAsNodeAttribute() const {
+        return dynamic_cast<const NodeAttribute*>(target);
+    }
+
+    /** Property of Target() that is being animated*/
+    const std::string& TargetProperty() const {
+        return prop;
+    }
+
+private:
+    const Object* target;
+    std::shared_ptr<const PropertyTable> props;
+    mutable AnimationCurveMap curves;
+
+    std::string prop;
+    const Document& doc;
+};
+
+typedef std::vector<const AnimationCurveNode*> AnimationCurveNodeList;
+
+/** Represents a FBX animation layer (i.e. a list of node animations) */
+class AnimationLayer : public Object {
+public:
+    AnimationLayer(uint64_t id, const Element& element, const std::string& name, const Document& doc);
+    virtual ~AnimationLayer();
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    /* the optional white list specifies a list of property names for which the caller
+    wants animations for. Curves not matching this list will not be added to the
+    animation layer. */
+    AnimationCurveNodeList Nodes(const char* const * target_prop_whitelist = nullptr, size_t whitelist_size = 0) const;
+
+private:
+    std::shared_ptr<const PropertyTable> props;
+    const Document& doc;
+};
+
+typedef std::vector<const AnimationLayer*> AnimationLayerList;
+
+/** Represents a FBX animation stack (i.e. a list of animation layers) */
+class AnimationStack : public Object {
+public:
+    AnimationStack(uint64_t id, const Element& element, const std::string& name, const Document& doc);
+    virtual ~AnimationStack();
+
+    fbx_simple_property(LocalStart, int64_t, 0L)
+    fbx_simple_property(LocalStop, int64_t, 0L)
+    fbx_simple_property(ReferenceStart, int64_t, 0L)
+    fbx_simple_property(ReferenceStop, int64_t, 0L)
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    const AnimationLayerList& Layers() const {
+        return layers;
+    }
+
+private:
+    std::shared_ptr<const PropertyTable> props;
+    AnimationLayerList layers;
+};
+
+
+/** DOM class for deformers */
+class Deformer : public Object {
+public:
+    Deformer(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+    virtual ~Deformer();
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+private:
+    std::shared_ptr<const PropertyTable> props;
+};
+
+typedef std::vector<float> WeightArray;
+typedef std::vector<unsigned int> WeightIndexArray;
+
+
+/** DOM class for BlendShapeChannel deformers */
+class BlendShapeChannel : public Deformer {
+public:
+    BlendShapeChannel(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~BlendShapeChannel();
+
+    float DeformPercent() const {
+        return percent;
+    }
+
+    const WeightArray& GetFullWeights() const {
+        return fullWeights;
+    }
+
+    const std::vector<const ShapeGeometry*>& GetShapeGeometries() const {
+        return shapeGeometries;
+    }
+
+private:
+    float percent;
+    WeightArray fullWeights;
+    std::vector<const ShapeGeometry*> shapeGeometries;
+};
+
+/** DOM class for BlendShape deformers */
+class BlendShape : public Deformer {
+public:
+    BlendShape(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~BlendShape();
+
+    const std::vector<const BlendShapeChannel*>& BlendShapeChannels() const {
+        return blendShapeChannels;
+    }
+
+private:
+    std::vector<const BlendShapeChannel*> blendShapeChannels;
+};
+
+/** DOM class for skin deformer clusters (aka sub-deformers) */
+class Cluster : public Deformer {
+public:
+    Cluster(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~Cluster();
+
+    /** get the list of deformer weights associated with this cluster.
+     *  Use #GetIndices() to get the associated vertices. Both arrays
+     *  have the same size (and may also be empty). */
+    const WeightArray& GetWeights() const {
+        return weights;
+    }
+
+    /** get indices into the vertex data of the geometry associated
+     *  with this cluster. Use #GetWeights() to get the associated weights.
+     *  Both arrays have the same size (and may also be empty). */
+    const WeightIndexArray& GetIndices() const {
+        return indices;
+    }
+
+    /** */
+    const aiMatrix4x4& Transform() const {
+        return transform;
+    }
+
+    const aiMatrix4x4& TransformLink() const {
+        return transformLink;
+    }
+
+    const Model* TargetNode() const {
+        return node;
+    }
+
+private:
+    WeightArray weights;
+    WeightIndexArray indices;
+
+    aiMatrix4x4 transform;
+    aiMatrix4x4 transformLink;
+
+    const Model* node;
+};
+
+/** DOM class for skin deformers */
+class Skin : public Deformer {
+public:
+    Skin(uint64_t id, const Element& element, const Document& doc, const std::string& name);
+
+    virtual ~Skin();
+
+    float DeformAccuracy() const {
+        return accuracy;
+    }
+
+    const std::vector<const Cluster*>& Clusters() const {
+        return clusters;
+    }
+
+private:
+    float accuracy;
+    std::vector<const Cluster*> clusters;
+};
+
+/** Represents a link between two FBX objects. */
+class Connection {
+public:
+    Connection(uint64_t insertionOrder,  uint64_t src, uint64_t dest, const std::string& prop, const Document& doc);
+
+    ~Connection();
+
+    // note: a connection ensures that the source and dest objects exist, but
+    // not that they have DOM representations, so the return value of one of
+    // these functions can still be NULL.
+    const Object* SourceObject() const;
+    const Object* DestinationObject() const;
+
+    // these, however, are always guaranteed to be valid
+    LazyObject& LazySourceObject() const;
+    LazyObject& LazyDestinationObject() const;
+
+
+    /** return the name of the property the connection is attached to.
+      * this is an empty string for object to object (OO) connections. */
+    const std::string& PropertyName() const {
+        return prop;
+    }
+
+    uint64_t InsertionOrder() const {
+        return insertionOrder;
+    }
+
+    int CompareTo(const Connection* c) const {
+        ai_assert( nullptr != c );
+
+        // note: can't subtract because this would overflow uint64_t
+        if(InsertionOrder() > c->InsertionOrder()) {
+            return 1;
+        }
+        else if(InsertionOrder() < c->InsertionOrder()) {
+            return -1;
+        }
+        return 0;
+    }
+
+    bool Compare(const Connection* c) const {
+        ai_assert( nullptr != c );
+
+        return InsertionOrder() < c->InsertionOrder();
+    }
+
+public:
+    uint64_t insertionOrder;
+    const std::string prop;
+
+    uint64_t src, dest;
+    const Document& doc;
+};
+
+// XXX again, unique_ptr would be useful. shared_ptr is too
+// bloated since the objects have a well-defined single owner
+// during their entire lifetime (Document). FBX files have
+// up to many thousands of objects (most of which we never use),
+// so the memory overhead for them should be kept at a minimum.
+typedef std::map<uint64_t, LazyObject*> ObjectMap;
+typedef std::fbx_unordered_map<std::string, std::shared_ptr<const PropertyTable> > PropertyTemplateMap;
+
+typedef std::multimap<uint64_t, const Connection*> ConnectionMap;
+
+/** DOM class for global document settings, a single instance per document can
+ *  be accessed via Document.Globals(). */
+class FileGlobalSettings {
+public:
+    FileGlobalSettings(const Document& doc, std::shared_ptr<const PropertyTable> props);
+
+    ~FileGlobalSettings();
+
+    const PropertyTable& Props() const {
+        ai_assert(props.get());
+        return *props.get();
+    }
+
+    const Document& GetDocument() const {
+        return doc;
+    }
+
+    fbx_simple_property(UpAxis, int, 1)
+    fbx_simple_property(UpAxisSign, int, 1)
+    fbx_simple_property(FrontAxis, int, 2)
+    fbx_simple_property(FrontAxisSign, int, 1)
+    fbx_simple_property(CoordAxis, int, 0)
+    fbx_simple_property(CoordAxisSign, int, 1)
+    fbx_simple_property(OriginalUpAxis, int, 0)
+    fbx_simple_property(OriginalUpAxisSign, int, 1)
+    fbx_simple_property(UnitScaleFactor, float, 1)
+    fbx_simple_property(OriginalUnitScaleFactor, float, 1)
+    fbx_simple_property(AmbientColor, aiVector3D, aiVector3D(0,0,0))
+    fbx_simple_property(DefaultCamera, std::string, "")
+
+
+    enum FrameRate {
+        FrameRate_DEFAULT = 0,
+        FrameRate_120 = 1,
+        FrameRate_100 = 2,
+        FrameRate_60 = 3,
+        FrameRate_50 = 4,
+        FrameRate_48 = 5,
+        FrameRate_30 = 6,
+        FrameRate_30_DROP = 7,
+        FrameRate_NTSC_DROP_FRAME = 8,
+        FrameRate_NTSC_FULL_FRAME = 9,
+        FrameRate_PAL = 10,
+        FrameRate_CINEMA = 11,
+        FrameRate_1000 = 12,
+        FrameRate_CINEMA_ND = 13,
+        FrameRate_CUSTOM = 14,
+
+        FrameRate_MAX// end-of-enum sentinel
+    };
+
+    fbx_simple_enum_property(TimeMode, FrameRate, FrameRate_DEFAULT)
+    fbx_simple_property(TimeSpanStart, uint64_t, 0L)
+    fbx_simple_property(TimeSpanStop, uint64_t, 0L)
+    fbx_simple_property(CustomFrameRate, float, -1.0f)
+
+private:
+    std::shared_ptr<const PropertyTable> props;
+    const Document& doc;
+};
+
+/** DOM root for a FBX file */
+class Document {
+public:
+    Document(const Parser& parser, const ImportSettings& settings);
+
+    ~Document();
+
+    LazyObject* GetObject(uint64_t id) const;
+
+    bool IsBinary() const {
+        return parser.IsBinary();
+    }
+
+    unsigned int FBXVersion() const {
+        return fbxVersion;
+    }
+
+    const std::string& Creator() const {
+        return creator;
+    }
+
+    // elements (in this order): Year, Month, Day, Hour, Second, Millisecond
+    const unsigned int* CreationTimeStamp() const {
+        return creationTimeStamp;
+    }
+
+    const FileGlobalSettings& GlobalSettings() const {
+        ai_assert(globals.get());
+        return *globals.get();
+    }
+
+    const PropertyTemplateMap& Templates() const {
+        return templates;
+    }
+
+    const ObjectMap& Objects() const {
+        return objects;
+    }
+
+    const ImportSettings& Settings() const {
+        return settings;
+    }
+
+    const ConnectionMap& ConnectionsBySource() const {
+        return src_connections;
+    }
+
+    const ConnectionMap& ConnectionsByDestination() const {
+        return dest_connections;
+    }
+
+    // note: the implicit rule in all DOM classes is to always resolve
+    // from destination to source (since the FBX object hierarchy is,
+    // with very few exceptions, a DAG, this avoids cycles). In all
+    // cases that may involve back-facing edges in the object graph,
+    // use LazyObject::IsBeingConstructed() to check.
+
+    std::vector<const Connection*> GetConnectionsBySourceSequenced(uint64_t source) const;
+    std::vector<const Connection*> GetConnectionsByDestinationSequenced(uint64_t dest) const;
+
+    std::vector<const Connection*> GetConnectionsBySourceSequenced(uint64_t source, const char* classname) const;
+    std::vector<const Connection*> GetConnectionsByDestinationSequenced(uint64_t dest, const char* classname) const;
+
+    std::vector<const Connection*> GetConnectionsBySourceSequenced(uint64_t source,
+        const char* const* classnames, size_t count) const;
+    std::vector<const Connection*> GetConnectionsByDestinationSequenced(uint64_t dest,
+        const char* const* classnames,
+        size_t count) const;
+
+    const std::vector<const AnimationStack*>& AnimationStacks() const;
+
+private:
+    std::vector<const Connection*> GetConnectionsSequenced(uint64_t id, const ConnectionMap&) const;
+    std::vector<const Connection*> GetConnectionsSequenced(uint64_t id, bool is_src,
+        const ConnectionMap&,
+        const char* const* classnames,
+        size_t count) const;
+    void ReadHeader();
+    void ReadObjects();
+    void ReadPropertyTemplates();
+    void ReadConnections();
+    void ReadGlobalSettings();
+
+private:
+    const ImportSettings& settings;
+
+    ObjectMap objects;
+    const Parser& parser;
+
+    PropertyTemplateMap templates;
+    ConnectionMap src_connections;
+    ConnectionMap dest_connections;
+
+    unsigned int fbxVersion;
+    std::string creator;
+    unsigned int creationTimeStamp[7];
+
+    std::vector<uint64_t> animationStacks;
+    mutable std::vector<const AnimationStack*> animationStacksResolved;
+
+    std::unique_ptr<FileGlobalSettings> globals;
+};
+
+} // Namespace FBX
+} // Namespace Assimp
+
+#endif // INCLUDED_AI_FBX_DOCUMENT_H
diff --git a/thirdparty/assimp/code/FBXDocumentUtil.cpp b/thirdparty/assimp/code/FBXDocumentUtil.cpp
new file mode 100644
index 0000000000..f84691479a
--- /dev/null
+++ b/thirdparty/assimp/code/FBXDocumentUtil.cpp
@@ -0,0 +1,135 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXDocumentUtil.cpp
+ *  @brief Implementation of the FBX DOM utility functions declared in FBXDocumentUtil.h
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXParser.h"
+#include "FBXDocument.h"
+#include "FBXUtil.h"
+#include "FBXDocumentUtil.h"
+#include "FBXProperties.h"
+
+
+namespace Assimp {
+namespace FBX {
+namespace Util {
+
+// ------------------------------------------------------------------------------------------------
+// signal DOM construction error, this is always unrecoverable. Throws DeadlyImportError.
+void DOMError(const std::string& message, const Token& token)
+{
+    throw DeadlyImportError(Util::AddTokenText("FBX-DOM",message,&token));
+}
+
+// ------------------------------------------------------------------------------------------------
+void DOMError(const std::string& message, const Element* element /*= NULL*/)
+{
+    if(element) {
+        DOMError(message,element->KeyToken());
+    }
+    throw DeadlyImportError("FBX-DOM " + message);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// print warning, do return
+void DOMWarning(const std::string& message, const Token& token)
+{
+    if(DefaultLogger::get()) {
+        ASSIMP_LOG_WARN(Util::AddTokenText("FBX-DOM",message,&token));
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void DOMWarning(const std::string& message, const Element* element /*= NULL*/)
+{
+    if(element) {
+        DOMWarning(message,element->KeyToken());
+        return;
+    }
+    if(DefaultLogger::get()) {
+        ASSIMP_LOG_WARN("FBX-DOM: " + message);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// fetch a property table and the corresponding property template
+std::shared_ptr<const PropertyTable> GetPropertyTable(const Document& doc,
+    const std::string& templateName,
+    const Element &element,
+    const Scope& sc,
+    bool no_warn /*= false*/)
+{
+    const Element* const Properties70 = sc["Properties70"];
+    std::shared_ptr<const PropertyTable> templateProps = std::shared_ptr<const PropertyTable>(
+        static_cast<const PropertyTable*>(NULL));
+
+    if(templateName.length()) {
+        PropertyTemplateMap::const_iterator it = doc.Templates().find(templateName);
+        if(it != doc.Templates().end()) {
+            templateProps = (*it).second;
+        }
+    }
+
+    if(!Properties70 || !Properties70->Compound()) {
+        if(!no_warn) {
+            DOMWarning("property table (Properties70) not found",&element);
+        }
+        if(templateProps) {
+            return templateProps;
+        }
+        else {
+            return std::make_shared<const PropertyTable>();
+        }
+    }
+    return std::make_shared<const PropertyTable>(*Properties70,templateProps);
+}
+} // !Util
+} // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXDocumentUtil.h b/thirdparty/assimp/code/FBXDocumentUtil.h
new file mode 100644
index 0000000000..2450109e59
--- /dev/null
+++ b/thirdparty/assimp/code/FBXDocumentUtil.h
@@ -0,0 +1,120 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2012, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXDocumentUtil.h
+ *  @brief FBX internal utilities used by the DOM reading code
+ */
+#ifndef INCLUDED_AI_FBX_DOCUMENT_UTIL_H
+#define INCLUDED_AI_FBX_DOCUMENT_UTIL_H
+
+#include <assimp/defs.h>
+#include <string>
+#include <memory>
+#include "FBXDocument.h"
+
+struct Token;
+struct Element;
+
+namespace Assimp {
+namespace FBX {
+namespace Util {
+
+/* DOM/Parse error reporting - does not return */
+AI_WONT_RETURN void DOMError(const std::string& message, const Token& token) AI_WONT_RETURN_SUFFIX;
+AI_WONT_RETURN void DOMError(const std::string& message, const Element* element = NULL) AI_WONT_RETURN_SUFFIX;
+
+// does return
+void DOMWarning(const std::string& message, const Token& token);
+void DOMWarning(const std::string& message, const Element* element = NULL);
+
+
+// fetch a property table and the corresponding property template
+std::shared_ptr<const PropertyTable> GetPropertyTable(const Document& doc,
+    const std::string& templateName,
+    const Element &element,
+    const Scope& sc,
+    bool no_warn = false);
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline
+const T* ProcessSimpleConnection(const Connection& con,
+    bool is_object_property_conn,
+    const char* name,
+    const Element& element,
+    const char** propNameOut = nullptr)
+{
+    if (is_object_property_conn && !con.PropertyName().length()) {
+        DOMWarning("expected incoming " + std::string(name) +
+            " link to be an object-object connection, ignoring",
+            &element
+            );
+        return nullptr;
+    }
+    else if (!is_object_property_conn && con.PropertyName().length()) {
+        DOMWarning("expected incoming " + std::string(name) +
+            " link to be an object-property connection, ignoring",
+            &element
+            );
+        return nullptr;
+    }
+
+    if(is_object_property_conn && propNameOut) {
+        // note: this is ok, the return value of PropertyValue() is guaranteed to
+        // remain valid and unchanged as long as the document exists.
+        *propNameOut = con.PropertyName().c_str();
+    }
+
+    const Object* const ob = con.SourceObject();
+    if(!ob) {
+        DOMWarning("failed to read source object for incoming " + std::string(name) +
+            " link, ignoring",
+            &element);
+        return nullptr;
+    }
+
+    return dynamic_cast<const T*>(ob);
+}
+
+} //!Util
+} //!FBX
+} //!Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXExportNode.cpp b/thirdparty/assimp/code/FBXExportNode.cpp
new file mode 100644
index 0000000000..e5215466a1
--- /dev/null
+++ b/thirdparty/assimp/code/FBXExportNode.cpp
@@ -0,0 +1,568 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef ASSIMP_BUILD_NO_EXPORT
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#include "FBXExportNode.h"
+#include "FBXCommon.h"
+
+#include <assimp/StreamWriter.h> // StreamWriterLE
+#include <assimp/Exceptional.h> // DeadlyExportError
+#include <assimp/ai_assert.h>
+#include <assimp/StringUtils.h> // ai_snprintf
+
+#include <string>
+#include <ostream>
+#include <sstream> // ostringstream
+#include <memory> // shared_ptr
+
+// AddP70<type> helpers... there's no usable pattern here,
+// so all are defined as separate functions.
+// Even "animatable" properties are often completely different
+// from the standard (nonanimated) property definition,
+// so they are specified with an 'A' suffix.
+
+void FBX::Node::AddP70int(
+    const std::string& name, int32_t value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "int", "Integer", "", value);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70bool(
+    const std::string& name, bool value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "bool", "", "", int32_t(value));
+    AddChild(n);
+}
+
+void FBX::Node::AddP70double(
+    const std::string& name, double value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "double", "Number", "", value);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70numberA(
+    const std::string& name, double value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "Number", "", "A", value);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70color(
+    const std::string& name, double r, double g, double b
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "ColorRGB", "Color", "", r, g, b);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70colorA(
+    const std::string& name, double r, double g, double b
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "Color", "", "A", r, g, b);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70vector(
+    const std::string& name, double x, double y, double z
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "Vector3D", "Vector", "", x, y, z);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70vectorA(
+    const std::string& name, double x, double y, double z
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "Vector", "", "A", x, y, z);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70string(
+    const std::string& name, const std::string& value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "KString", "", "", value);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70enum(
+    const std::string& name, int32_t value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "enum", "", "", value);
+    AddChild(n);
+}
+
+void FBX::Node::AddP70time(
+    const std::string& name, int64_t value
+) {
+    FBX::Node n("P");
+    n.AddProperties(name, "KTime", "Time", "", value);
+    AddChild(n);
+}
+
+
+// public member functions for writing nodes to stream
+
+void FBX::Node::Dump(
+    std::shared_ptr<Assimp::IOStream> outfile,
+    bool binary, int indent
+) {
+    if (binary) {
+        Assimp::StreamWriterLE outstream(outfile);
+        DumpBinary(outstream);
+    } else {
+        std::ostringstream ss;
+        DumpAscii(ss, indent);
+        std::string s = ss.str();
+        outfile->Write(s.c_str(), s.size(), 1);
+    }
+}
+
+void FBX::Node::Dump(
+    Assimp::StreamWriterLE &outstream,
+    bool binary, int indent
+) {
+    if (binary) {
+        DumpBinary(outstream);
+    } else {
+        std::ostringstream ss;
+        DumpAscii(ss, indent);
+        outstream.PutString(ss.str());
+    }
+}
+
+
+// public member functions for low-level writing
+
+void FBX::Node::Begin(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent
+) {
+    if (binary) {
+        BeginBinary(s);
+    } else {
+        // assume we're at the correct place to start already
+        (void)indent;
+        std::ostringstream ss;
+        BeginAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::DumpProperties(
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+) {
+    if (binary) {
+        DumpPropertiesBinary(s);
+    } else {
+        std::ostringstream ss;
+        DumpPropertiesAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::EndProperties(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent
+) {
+    EndProperties(s, binary, indent, properties.size());
+}
+
+void FBX::Node::EndProperties(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent,
+    size_t num_properties
+) {
+    if (binary) {
+        EndPropertiesBinary(s, num_properties);
+    } else {
+        // nothing to do
+        (void)indent;
+    }
+}
+
+void FBX::Node::BeginChildren(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent
+) {
+    if (binary) {
+        // nothing to do
+    } else {
+        std::ostringstream ss;
+        BeginChildrenAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::DumpChildren(
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+) {
+    if (binary) {
+        DumpChildrenBinary(s);
+    } else {
+        std::ostringstream ss;
+        DumpChildrenAscii(ss, indent);
+        s.PutString(ss.str());
+    }
+}
+
+void FBX::Node::End(
+    Assimp::StreamWriterLE &s,
+    bool binary, int indent,
+    bool has_children
+) {
+    if (binary) {
+        EndBinary(s, has_children);
+    } else {
+        std::ostringstream ss;
+        EndAscii(ss, indent, has_children);
+        s.PutString(ss.str());
+    }
+}
+
+
+// public member functions for writing to binary fbx
+
+void FBX::Node::DumpBinary(Assimp::StreamWriterLE &s)
+{
+    // write header section (with placeholders for some things)
+    BeginBinary(s);
+
+    // write properties
+    DumpPropertiesBinary(s);
+
+    // go back and fill in property related placeholders
+    EndPropertiesBinary(s, properties.size());
+
+    // write children
+    DumpChildrenBinary(s);
+
+    // finish, filling in end offset placeholder
+    EndBinary(s, force_has_children || !children.empty());
+}
+
+
+// public member functions for writing to ascii fbx
+
+void FBX::Node::DumpAscii(std::ostream &s, int indent)
+{
+    // write name
+    BeginAscii(s, indent);
+
+    // write properties
+    DumpPropertiesAscii(s, indent);
+
+    if (force_has_children || !children.empty()) {
+        // begin children (with a '{')
+        BeginChildrenAscii(s, indent + 1);
+        // write children
+        DumpChildrenAscii(s, indent + 1);
+    }
+
+    // finish (also closing the children bracket '}')
+    EndAscii(s, indent, force_has_children || !children.empty());
+}
+
+
+// private member functions for low-level writing to fbx
+
+void FBX::Node::BeginBinary(Assimp::StreamWriterLE &s)
+{
+    // remember start pos so we can come back and write the end pos
+    this->start_pos = s.Tell();
+
+    // placeholders for end pos and property section info
+    s.PutU4(0); // end pos
+    s.PutU4(0); // number of properties
+    s.PutU4(0); // total property section length
+
+    // node name
+    s.PutU1(uint8_t(name.size())); // length of node name
+    s.PutString(name); // node name as raw bytes
+
+    // property data comes after here
+    this->property_start = s.Tell();
+}
+
+void FBX::Node::DumpPropertiesBinary(Assimp::StreamWriterLE& s)
+{
+    for (auto &p : properties) {
+        p.DumpBinary(s);
+    }
+}
+
+void FBX::Node::EndPropertiesBinary(
+    Assimp::StreamWriterLE &s,
+    size_t num_properties
+) {
+    if (num_properties == 0) { return; }
+    size_t pos = s.Tell();
+    ai_assert(pos > property_start);
+    size_t property_section_size = pos - property_start;
+    s.Seek(start_pos + 4);
+    s.PutU4(uint32_t(num_properties));
+    s.PutU4(uint32_t(property_section_size));
+    s.Seek(pos);
+}
+
+void FBX::Node::DumpChildrenBinary(Assimp::StreamWriterLE& s)
+{
+    for (FBX::Node& child : children) {
+        child.DumpBinary(s);
+    }
+}
+
+void FBX::Node::EndBinary(
+    Assimp::StreamWriterLE &s,
+    bool has_children
+) {
+    // if there were children, add a null record
+    if (has_children) { s.PutString(FBX::NULL_RECORD); }
+
+    // now go back and write initial pos
+    this->end_pos = s.Tell();
+    s.Seek(start_pos);
+    s.PutU4(uint32_t(end_pos));
+    s.Seek(end_pos);
+}
+
+
+void FBX::Node::BeginAscii(std::ostream& s, int indent)
+{
+    s << '\n';
+    for (int i = 0; i < indent; ++i) { s << '\t'; }
+    s << name << ": ";
+}
+
+void FBX::Node::DumpPropertiesAscii(std::ostream &s, int indent)
+{
+    for (size_t i = 0; i < properties.size(); ++i) {
+        if (i > 0) { s << ", "; }
+        properties[i].DumpAscii(s, indent);
+    }
+}
+
+void FBX::Node::BeginChildrenAscii(std::ostream& s, int indent)
+{
+    // only call this if there are actually children
+    s << " {";
+    (void)indent;
+}
+
+void FBX::Node::DumpChildrenAscii(std::ostream& s, int indent)
+{
+    // children will need a lot of padding and corralling
+    if (children.size() || force_has_children) {
+        for (size_t i = 0; i < children.size(); ++i) {
+            // no compression in ascii files, so skip this node if it exists
+            if (children[i].name == "EncryptionType") { continue; }
+            // the child can dump itself
+            children[i].DumpAscii(s, indent);
+        }
+    }
+}
+
+void FBX::Node::EndAscii(std::ostream& s, int indent, bool has_children)
+{
+    if (!has_children) { return; } // nothing to do
+    s << '\n';
+    for (int i = 0; i < indent; ++i) { s << '\t'; }
+    s << "}";
+}
+
+// private helpers for static member functions
+
+// ascii property node from vector of doubles
+void FBX::Node::WritePropertyNodeAscii(
+    const std::string& name,
+    const std::vector<double>& v,
+    Assimp::StreamWriterLE& s,
+    int indent
+){
+    char buffer[32];
+    FBX::Node node(name);
+    node.Begin(s, false, indent);
+    std::string vsize = to_string(v.size());
+    // *<size> {
+    s.PutChar('*'); s.PutString(vsize); s.PutString(" {\n");
+    // indent + 1
+    for (int i = 0; i < indent + 1; ++i) { s.PutChar('\t'); }
+    // a: value,value,value,...
+    s.PutString("a: ");
+    int count = 0;
+    for (size_t i = 0; i < v.size(); ++i) {
+        if (i > 0) { s.PutChar(','); }
+        int len = ai_snprintf(buffer, sizeof(buffer), "%f", v[i]);
+        count += len;
+        if (count > 2048) { s.PutChar('\n'); count = 0; }
+        if (len < 0 || len > 31) {
+            // this should never happen
+            throw DeadlyExportError("failed to convert double to string");
+        }
+        for (int j = 0; j < len; ++j) { s.PutChar(buffer[j]); }
+    }
+    // }
+    s.PutChar('\n');
+    for (int i = 0; i < indent; ++i) { s.PutChar('\t'); }
+    s.PutChar('}'); s.PutChar(' ');
+    node.End(s, false, indent, false);
+}
+
+// ascii property node from vector of int32_t
+void FBX::Node::WritePropertyNodeAscii(
+    const std::string& name,
+    const std::vector<int32_t>& v,
+    Assimp::StreamWriterLE& s,
+    int indent
+){
+    char buffer[32];
+    FBX::Node node(name);
+    node.Begin(s, false, indent);
+    std::string vsize = to_string(v.size());
+    // *<size> {
+    s.PutChar('*'); s.PutString(vsize); s.PutString(" {\n");
+    // indent + 1
+    for (int i = 0; i < indent + 1; ++i) { s.PutChar('\t'); }
+    // a: value,value,value,...
+    s.PutString("a: ");
+    int count = 0;
+    for (size_t i = 0; i < v.size(); ++i) {
+        if (i > 0) { s.PutChar(','); }
+        int len = ai_snprintf(buffer, sizeof(buffer), "%d", v[i]);
+        count += len;
+        if (count > 2048) { s.PutChar('\n'); count = 0; }
+        if (len < 0 || len > 31) {
+            // this should never happen
+            throw DeadlyExportError("failed to convert double to string");
+        }
+        for (int j = 0; j < len; ++j) { s.PutChar(buffer[j]); }
+    }
+    // }
+    s.PutChar('\n');
+    for (int i = 0; i < indent; ++i) { s.PutChar('\t'); }
+    s.PutChar('}'); s.PutChar(' ');
+    node.End(s, false, indent, false);
+}
+
+// binary property node from vector of doubles
+// TODO: optional zip compression!
+void FBX::Node::WritePropertyNodeBinary(
+    const std::string& name,
+    const std::vector<double>& v,
+    Assimp::StreamWriterLE& s
+){
+    FBX::Node node(name);
+    node.BeginBinary(s);
+    s.PutU1('d');
+    s.PutU4(uint32_t(v.size())); // number of elements
+    s.PutU4(0); // no encoding (1 would be zip-compressed)
+    s.PutU4(uint32_t(v.size()) * 8); // data size
+    for (auto it = v.begin(); it != v.end(); ++it) { s.PutF8(*it); }
+    node.EndPropertiesBinary(s, 1);
+    node.EndBinary(s, false);
+}
+
+// binary property node from vector of int32_t
+// TODO: optional zip compression!
+void FBX::Node::WritePropertyNodeBinary(
+    const std::string& name,
+    const std::vector<int32_t>& v,
+    Assimp::StreamWriterLE& s
+){
+    FBX::Node node(name);
+    node.BeginBinary(s);
+    s.PutU1('i');
+    s.PutU4(uint32_t(v.size())); // number of elements
+    s.PutU4(0); // no encoding (1 would be zip-compressed)
+    s.PutU4(uint32_t(v.size()) * 4); // data size
+    for (auto it = v.begin(); it != v.end(); ++it) { s.PutI4(*it); }
+    node.EndPropertiesBinary(s, 1);
+    node.EndBinary(s, false);
+}
+
+// public static member functions
+
+// convenience function to create and write a property node,
+// holding a single property which is an array of values.
+// does not copy the data, so is efficient for large arrays.
+void FBX::Node::WritePropertyNode(
+    const std::string& name,
+    const std::vector<double>& v,
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+){
+    if (binary) {
+        FBX::Node::WritePropertyNodeBinary(name, v, s);
+    } else {
+        FBX::Node::WritePropertyNodeAscii(name, v, s, indent);
+    }
+}
+
+// convenience function to create and write a property node,
+// holding a single property which is an array of values.
+// does not copy the data, so is efficient for large arrays.
+void FBX::Node::WritePropertyNode(
+    const std::string& name,
+    const std::vector<int32_t>& v,
+    Assimp::StreamWriterLE& s,
+    bool binary, int indent
+){
+    if (binary) {
+        FBX::Node::WritePropertyNodeBinary(name, v, s);
+    } else {
+        FBX::Node::WritePropertyNodeAscii(name, v, s, indent);
+    }
+}
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+#endif // ASSIMP_BUILD_NO_EXPORT
diff --git a/thirdparty/assimp/code/FBXExportNode.h b/thirdparty/assimp/code/FBXExportNode.h
new file mode 100644
index 0000000000..e1ebc36969
--- /dev/null
+++ b/thirdparty/assimp/code/FBXExportNode.h
@@ -0,0 +1,271 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file FBXExportNode.h
+* Declares the FBX::Node helper class for fbx export.
+*/
+#ifndef AI_FBXEXPORTNODE_H_INC
+#define AI_FBXEXPORTNODE_H_INC
+
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#include "FBXExportProperty.h"
+
+#include <assimp/StreamWriter.h> // StreamWriterLE
+
+#include <string>
+#include <vector>
+
+namespace FBX {
+    class Node;
+}
+
+class FBX::Node
+{
+public: // public data members
+    // TODO: accessors
+    std::string name; // node name
+    std::vector<FBX::Property> properties; // node properties
+    std::vector<FBX::Node> children; // child nodes
+
+    // some nodes always pretend they have children...
+    bool force_has_children = false;
+
+public: // constructors
+    /// The default class constructor.
+    Node() = default;
+
+    /// The class constructor with the name.
+    Node(const std::string& n)
+    : name(n)
+    , properties()
+    , children()
+    , force_has_children( false ) {
+        // empty
+    }
+
+    // convenience template to construct with properties directly
+    template <typename... More>
+    Node(const std::string& n, const More... more)
+    : name(n)
+    , properties()
+    , children()
+    , force_has_children(false) {
+        AddProperties(more...);
+    }
+
+public: // functions to add properties or children
+    // add a single property to the node
+    template <typename T>
+    void AddProperty(T value) {
+        properties.emplace_back(value);
+    }
+
+    // convenience function to add multiple properties at once
+    template <typename T, typename... More>
+    void AddProperties(T value, More... more) {
+        properties.emplace_back(value);
+        AddProperties(more...);
+    }
+    void AddProperties() {}
+
+    // add a child node directly
+    void AddChild(const Node& node) { children.push_back(node); }
+
+    // convenience function to add a child node with a single property
+    template <typename... More>
+    void AddChild(
+        const std::string& name,
+        More... more
+    ) {
+        FBX::Node c(name);
+        c.AddProperties(more...);
+        children.push_back(c);
+    }
+
+public: // support specifically for dealing with Properties70 nodes
+
+    // it really is simpler to make these all separate functions.
+    // the versions with 'A' suffixes are for animatable properties.
+    // those often follow a completely different format internally in FBX.
+    void AddP70int(const std::string& name, int32_t value);
+    void AddP70bool(const std::string& name, bool value);
+    void AddP70double(const std::string& name, double value);
+    void AddP70numberA(const std::string& name, double value);
+    void AddP70color(const std::string& name, double r, double g, double b);
+    void AddP70colorA(const std::string& name, double r, double g, double b);
+    void AddP70vector(const std::string& name, double x, double y, double z);
+    void AddP70vectorA(const std::string& name, double x, double y, double z);
+    void AddP70string(const std::string& name, const std::string& value);
+    void AddP70enum(const std::string& name, int32_t value);
+    void AddP70time(const std::string& name, int64_t value);
+
+    // template for custom P70 nodes.
+    // anything that doesn't fit in the above can be created manually.
+    template <typename... More>
+    void AddP70(
+        const std::string& name,
+        const std::string& type,
+        const std::string& type2,
+        const std::string& flags,
+        More... more
+    ) {
+        Node n("P");
+        n.AddProperties(name, type, type2, flags, more...);
+        AddChild(n);
+    }
+
+public: // member functions for writing data to a file or stream
+
+    // write the full node to the given file or stream
+    void Dump(
+        std::shared_ptr<Assimp::IOStream> outfile,
+        bool binary, int indent
+    );
+    void Dump(Assimp::StreamWriterLE &s, bool binary, int indent);
+
+    // these other functions are for writing data piece by piece.
+    // they must be used carefully.
+    // for usage examples see FBXExporter.cpp.
+    void Begin(Assimp::StreamWriterLE &s, bool binary, int indent);
+    void DumpProperties(Assimp::StreamWriterLE& s, bool binary, int indent);
+    void EndProperties(Assimp::StreamWriterLE &s, bool binary, int indent);
+    void EndProperties(
+        Assimp::StreamWriterLE &s, bool binary, int indent,
+        size_t num_properties
+    );
+    void BeginChildren(Assimp::StreamWriterLE &s, bool binary, int indent);
+    void DumpChildren(Assimp::StreamWriterLE& s, bool binary, int indent);
+    void End(
+        Assimp::StreamWriterLE &s, bool binary, int indent,
+        bool has_children
+    );
+
+private: // internal functions used for writing
+
+    void DumpBinary(Assimp::StreamWriterLE &s);
+    void DumpAscii(Assimp::StreamWriterLE &s, int indent);
+    void DumpAscii(std::ostream &s, int indent);
+
+    void BeginBinary(Assimp::StreamWriterLE &s);
+    void DumpPropertiesBinary(Assimp::StreamWriterLE& s);
+    void EndPropertiesBinary(Assimp::StreamWriterLE &s);
+    void EndPropertiesBinary(Assimp::StreamWriterLE &s, size_t num_properties);
+    void DumpChildrenBinary(Assimp::StreamWriterLE& s);
+    void EndBinary(Assimp::StreamWriterLE &s, bool has_children);
+
+    void BeginAscii(std::ostream &s, int indent);
+    void DumpPropertiesAscii(std::ostream &s, int indent);
+    void BeginChildrenAscii(std::ostream &s, int indent);
+    void DumpChildrenAscii(std::ostream &s, int indent);
+    void EndAscii(std::ostream &s, int indent, bool has_children);
+
+private: // data used for binary dumps
+    size_t start_pos; // starting position in stream
+    size_t end_pos; // ending position in stream
+    size_t property_start; // starting position of property section
+
+public: // static member functions
+
+    // convenience function to create a node with a single property,
+    // and write it to the stream.
+    template <typename T>
+    static void WritePropertyNode(
+        const std::string& name,
+        const T value,
+        Assimp::StreamWriterLE& s,
+        bool binary, int indent
+    ) {
+        FBX::Property p(value);
+        FBX::Node node(name, p);
+        node.Dump(s, binary, indent);
+    }
+
+    // convenience function to create and write a property node,
+    // holding a single property which is an array of values.
+    // does not copy the data, so is efficient for large arrays.
+    static void WritePropertyNode(
+        const std::string& name,
+        const std::vector<double>& v,
+        Assimp::StreamWriterLE& s,
+        bool binary, int indent
+    );
+
+    // convenience function to create and write a property node,
+    // holding a single property which is an array of values.
+    // does not copy the data, so is efficient for large arrays.
+    static void WritePropertyNode(
+        const std::string& name,
+        const std::vector<int32_t>& v,
+        Assimp::StreamWriterLE& s,
+        bool binary, int indent
+    );
+
+private: // static helper functions
+    static void WritePropertyNodeAscii(
+        const std::string& name,
+        const std::vector<double>& v,
+        Assimp::StreamWriterLE& s,
+        int indent
+    );
+    static void WritePropertyNodeAscii(
+        const std::string& name,
+        const std::vector<int32_t>& v,
+        Assimp::StreamWriterLE& s,
+        int indent
+    );
+    static void WritePropertyNodeBinary(
+        const std::string& name,
+        const std::vector<double>& v,
+        Assimp::StreamWriterLE& s
+    );
+    static void WritePropertyNodeBinary(
+        const std::string& name,
+        const std::vector<int32_t>& v,
+        Assimp::StreamWriterLE& s
+    );
+
+};
+
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#endif // AI_FBXEXPORTNODE_H_INC
diff --git a/thirdparty/assimp/code/FBXExportProperty.cpp b/thirdparty/assimp/code/FBXExportProperty.cpp
new file mode 100644
index 0000000000..9981d6b1c6
--- /dev/null
+++ b/thirdparty/assimp/code/FBXExportProperty.cpp
@@ -0,0 +1,364 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef ASSIMP_BUILD_NO_EXPORT
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#include "FBXExportProperty.h"
+
+#include <assimp/StreamWriter.h> // StreamWriterLE
+#include <assimp/Exceptional.h> // DeadlyExportError
+
+#include <string>
+#include <vector>
+#include <ostream>
+#include <locale>
+#include <sstream> // ostringstream
+
+
+// constructors for single element properties
+
+FBX::Property::Property(bool v)
+    : type('C'), data(1)
+{
+    data = {uint8_t(v)};
+}
+
+FBX::Property::Property(int16_t v) : type('Y'), data(2)
+{
+    uint8_t* d = data.data();
+    (reinterpret_cast<int16_t*>(d))[0] = v;
+}
+
+FBX::Property::Property(int32_t v) : type('I'), data(4)
+{
+    uint8_t* d = data.data();
+    (reinterpret_cast<int32_t*>(d))[0] = v;
+}
+
+FBX::Property::Property(float v) : type('F'), data(4)
+{
+    uint8_t* d = data.data();
+    (reinterpret_cast<float*>(d))[0] = v;
+}
+
+FBX::Property::Property(double v) : type('D'), data(8)
+{
+    uint8_t* d = data.data();
+    (reinterpret_cast<double*>(d))[0] = v;
+}
+
+FBX::Property::Property(int64_t v) : type('L'), data(8)
+{
+    uint8_t* d = data.data();
+    (reinterpret_cast<int64_t*>(d))[0] = v;
+}
+
+
+// constructors for array-type properties
+
+FBX::Property::Property(const char* c, bool raw)
+    : Property(std::string(c), raw)
+{}
+
+// strings can either be saved as "raw" (R) data, or "string" (S) data
+FBX::Property::Property(const std::string& s, bool raw)
+    : type(raw ? 'R' : 'S'), data(s.size())
+{
+    for (size_t i = 0; i < s.size(); ++i) {
+        data[i] = uint8_t(s[i]);
+    }
+}
+
+FBX::Property::Property(const std::vector<uint8_t>& r)
+    : type('R'), data(r)
+{}
+
+FBX::Property::Property(const std::vector<int32_t>& va)
+    : type('i'), data(4*va.size())
+{
+    int32_t* d = reinterpret_cast<int32_t*>(data.data());
+    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+}
+
+FBX::Property::Property(const std::vector<int64_t>& va)
+    : type('l'), data(8*va.size())
+{
+    int64_t* d = reinterpret_cast<int64_t*>(data.data());
+    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+}
+
+FBX::Property::Property(const std::vector<float>& va)
+    : type('f'), data(4*va.size())
+{
+    float* d = reinterpret_cast<float*>(data.data());
+    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+}
+
+FBX::Property::Property(const std::vector<double>& va)
+    : type('d'), data(8*va.size())
+{
+    double* d = reinterpret_cast<double*>(data.data());
+    for (size_t i = 0; i < va.size(); ++i) { d[i] = va[i]; }
+}
+
+FBX::Property::Property(const aiMatrix4x4& vm)
+    : type('d'), data(8*16)
+{
+    double* d = reinterpret_cast<double*>(data.data());
+    for (unsigned int c = 0; c < 4; ++c) {
+        for (unsigned int r = 0; r < 4; ++r) {
+            d[4*c+r] = vm[r][c];
+        }
+    }
+}
+
+// public member functions
+
+size_t FBX::Property::size()
+{
+    switch (type) {
+    case 'C': case 'Y': case 'I': case 'F': case 'D': case 'L':
+        return data.size() + 1;
+    case 'S': case 'R':
+        return data.size() + 5;
+    case 'i': case 'd':
+        return data.size() + 13;
+    default:
+        throw DeadlyExportError("Requested size on property of unknown type");
+    }
+}
+
+void FBX::Property::DumpBinary(Assimp::StreamWriterLE &s)
+{
+    s.PutU1(type);
+    uint8_t* d = data.data();
+    size_t N;
+    switch (type) {
+    case 'C': s.PutU1(*(reinterpret_cast<uint8_t*>(d))); return;
+    case 'Y': s.PutI2(*(reinterpret_cast<int16_t*>(d))); return;
+    case 'I': s.PutI4(*(reinterpret_cast<int32_t*>(d))); return;
+    case 'F': s.PutF4(*(reinterpret_cast<float*>(d))); return;
+    case 'D': s.PutF8(*(reinterpret_cast<double*>(d))); return;
+    case 'L': s.PutI8(*(reinterpret_cast<int64_t*>(d))); return;
+    case 'S':
+    case 'R':
+        s.PutU4(uint32_t(data.size()));
+        for (size_t i = 0; i < data.size(); ++i) { s.PutU1(data[i]); }
+        return;
+    case 'i':
+        N = data.size() / 4;
+        s.PutU4(uint32_t(N)); // number of elements
+        s.PutU4(0); // no encoding (1 would be zip-compressed)
+        // TODO: compress if large?
+        s.PutU4(uint32_t(data.size())); // data size
+        for (size_t i = 0; i < N; ++i) {
+            s.PutI4((reinterpret_cast<int32_t*>(d))[i]);
+        }
+        return;
+    case 'l':
+        N = data.size() / 8;
+        s.PutU4(uint32_t(N)); // number of elements
+        s.PutU4(0); // no encoding (1 would be zip-compressed)
+        // TODO: compress if large?
+        s.PutU4(uint32_t(data.size())); // data size
+        for (size_t i = 0; i < N; ++i) {
+            s.PutI8((reinterpret_cast<int64_t*>(d))[i]);
+        }
+        return;
+    case 'f':
+        N = data.size() / 4;
+        s.PutU4(uint32_t(N)); // number of elements
+        s.PutU4(0); // no encoding (1 would be zip-compressed)
+        // TODO: compress if large?
+        s.PutU4(uint32_t(data.size())); // data size
+        for (size_t i = 0; i < N; ++i) {
+            s.PutF4((reinterpret_cast<float*>(d))[i]);
+        }
+        return;
+    case 'd':
+        N = data.size() / 8;
+        s.PutU4(uint32_t(N)); // number of elements
+        s.PutU4(0); // no encoding (1 would be zip-compressed)
+        // TODO: compress if large?
+        s.PutU4(uint32_t(data.size())); // data size
+        for (size_t i = 0; i < N; ++i) {
+            s.PutF8((reinterpret_cast<double*>(d))[i]);
+        }
+        return;
+    default:
+        std::ostringstream err;
+        err << "Tried to dump property with invalid type '";
+        err << type << "'!";
+        throw DeadlyExportError(err.str());
+    }
+}
+
+void FBX::Property::DumpAscii(Assimp::StreamWriterLE &outstream, int indent)
+{
+    std::ostringstream ss;
+    ss.imbue(std::locale::classic());
+    ss.precision(15); // this seems to match official FBX SDK exports
+    DumpAscii(ss, indent);
+    outstream.PutString(ss.str());
+}
+
+void FBX::Property::DumpAscii(std::ostream& s, int indent)
+{
+    // no writing type... or anything. just shove it into the stream.
+    uint8_t* d = data.data();
+    size_t N;
+    size_t swap = data.size();
+    size_t count = 0;
+    switch (type) {
+    case 'C':
+        if (*(reinterpret_cast<uint8_t*>(d))) { s << 'T'; }
+        else { s << 'F'; }
+        return;
+    case 'Y': s << *(reinterpret_cast<int16_t*>(d)); return;
+    case 'I': s << *(reinterpret_cast<int32_t*>(d)); return;
+    case 'F': s << *(reinterpret_cast<float*>(d)); return;
+    case 'D': s << *(reinterpret_cast<double*>(d)); return;
+    case 'L': s << *(reinterpret_cast<int64_t*>(d)); return;
+    case 'S':
+        // first search to see if it has "\x00\x01" in it -
+        // which separates fields which are reversed in the ascii version.
+        // yeah.
+        // FBX, yeah.
+        for (size_t i = 0; i < data.size(); ++i) {
+            if (data[i] == '\0') {
+                swap = i;
+                break;
+            }
+        }
+    case 'R':
+        s << '"';
+        // we might as well check this now,
+        // probably it will never happen
+        for (size_t i = 0; i < data.size(); ++i) {
+            char c = data[i];
+            if (c == '"') {
+                throw runtime_error("can't handle quotes in property string");
+            }
+        }
+        // first write the SWAPPED member (if any)
+        for (size_t i = swap + 2; i < data.size(); ++i) {
+            char c = data[i];
+            s << c;
+        }
+        // then a separator
+        if (swap != data.size()) {
+            s << "::";
+        }
+        // then the initial member
+        for (size_t i = 0; i < swap; ++i) {
+            char c = data[i];
+            s << c;
+        }
+        s << '"';
+        return;
+    case 'i':
+        N = data.size() / 4; // number of elements
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<int32_t*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    case 'l':
+        N = data.size() / 8;
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<int64_t*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    case 'f':
+        N = data.size() / 4;
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<float*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    case 'd':
+        N = data.size() / 8;
+        s << '*' << N << " {\n";
+        for (int i = 0; i < indent + 1; ++i) { s << '\t'; }
+        s << "a: ";
+        // set precision to something that can handle doubles
+        s.precision(15);
+        for (size_t i = 0; i < N; ++i) {
+            if (i > 0) { s << ','; }
+            if (count++ > 120) { s << '\n'; count = 0; }
+            s << (reinterpret_cast<double*>(d))[i];
+        }
+        s << '\n';
+        for (int i = 0; i < indent; ++i) { s << '\t'; }
+        s << "} ";
+        return;
+    default:
+        std::ostringstream err;
+        err << "Tried to dump property with invalid type '";
+        err << type << "'!";
+        throw runtime_error(err.str());
+    }
+}
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+#endif // ASSIMP_BUILD_NO_EXPORT
diff --git a/thirdparty/assimp/code/FBXExportProperty.h b/thirdparty/assimp/code/FBXExportProperty.h
new file mode 100644
index 0000000000..9c9d37c362
--- /dev/null
+++ b/thirdparty/assimp/code/FBXExportProperty.h
@@ -0,0 +1,129 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file FBXExportProperty.h
+* Declares the FBX::Property helper class for fbx export.
+*/
+#ifndef AI_FBXEXPORTPROPERTY_H_INC
+#define AI_FBXEXPORTPROPERTY_H_INC
+
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+
+#include <assimp/types.h> // aiMatrix4x4
+#include <assimp/StreamWriter.h> // StreamWriterLE
+
+#include <string>
+#include <vector>
+#include <ostream>
+#include <type_traits> // is_void
+
+namespace FBX {
+    class Property;
+}
+
+/** FBX::Property
+ *
+ *  Holds a value of any of FBX's recognized types,
+ *  each represented by a particular one-character code.
+ *  C : 1-byte uint8, usually 0x00 or 0x01 to represent boolean false and true
+ *  Y : 2-byte int16
+ *  I : 4-byte int32
+ *  F : 4-byte float
+ *  D : 8-byte double
+ *  L : 8-byte int64
+ *  i : array of int32
+ *  f : array of float
+ *  d : array of double
+ *  l : array of int64
+ *  b : array of 1-byte booleans (0x00 or 0x01)
+ *  S : string (array of 1-byte char)
+ *  R : raw data (array of bytes)
+ */
+class FBX::Property
+{
+public:
+    // constructors for basic types.
+    // all explicit to avoid accidental typecasting
+    explicit Property(bool v);
+    // TODO: determine if there is actually a byte type,
+    // or if this always means <bool>. 'C' seems to imply <char>,
+    // so possibly the above was intended to represent both.
+    explicit Property(int16_t v);
+    explicit Property(int32_t v);
+    explicit Property(float v);
+    explicit Property(double v);
+    explicit Property(int64_t v);
+    // strings can either be stored as 'R' (raw) or 'S' (string) type
+    explicit Property(const char* c, bool raw=false);
+    explicit Property(const std::string& s, bool raw=false);
+    explicit Property(const std::vector<uint8_t>& r);
+    explicit Property(const std::vector<int32_t>& va);
+    explicit Property(const std::vector<int64_t>& va);
+    explicit Property(const std::vector<double>& va);
+    explicit Property(const std::vector<float>& va);
+    explicit Property(const aiMatrix4x4& vm);
+
+    // this will catch any type not defined above,
+    // so that we don't accidentally convert something we don't want.
+    // for example (const char*) --> (bool)... seriously wtf C++
+    template <class T>
+    explicit Property(T v) : type('X') {
+        static_assert(std::is_void<T>::value, "TRIED TO CREATE FBX PROPERTY WITH UNSUPPORTED TYPE, CHECK YOUR PROPERTY INSTANTIATION");
+    } // note: no line wrap so it appears verbatim on the compiler error
+
+    // the size of this property node in a binary file, in bytes
+    size_t size();
+
+    // write this property node as binary data to the given stream
+    void DumpBinary(Assimp::StreamWriterLE &s);
+    void DumpAscii(Assimp::StreamWriterLE &s, int indent=0);
+    void DumpAscii(std::ostream &s, int indent=0);
+    // note: make sure the ostream is in classic "C" locale
+
+private:
+    char type;
+    std::vector<uint8_t> data;
+};
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#endif // AI_FBXEXPORTPROPERTY_H_INC
diff --git a/thirdparty/assimp/code/FBXExporter.cpp b/thirdparty/assimp/code/FBXExporter.cpp
new file mode 100644
index 0000000000..acb1227144
--- /dev/null
+++ b/thirdparty/assimp/code/FBXExporter.cpp
@@ -0,0 +1,2480 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef ASSIMP_BUILD_NO_EXPORT
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#include "FBXExporter.h"
+#include "FBXExportNode.h"
+#include "FBXExportProperty.h"
+#include "FBXCommon.h"
+
+#include <assimp/version.h> // aiGetVersion
+#include <assimp/IOSystem.hpp>
+#include <assimp/Exporter.hpp>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/StreamWriter.h> // StreamWriterLE
+#include <assimp/Exceptional.h> // DeadlyExportError
+#include <assimp/material.h> // aiTextureType
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+
+// Header files, standard library.
+#include <memory> // shared_ptr
+#include <string>
+#include <sstream> // stringstream
+#include <ctime> // localtime, tm_*
+#include <map>
+#include <set>
+#include <vector>
+#include <array>
+#include <unordered_set>
+
+// RESOURCES:
+// https://code.blender.org/2013/08/fbx-binary-file-format-specification/
+// https://wiki.blender.org/index.php/User:Mont29/Foundation/FBX_File_Structure
+
+const ai_real DEG = ai_real( 57.29577951308232087679815481 ); // degrees per radian
+
+// some constants that we'll use for writing metadata
+namespace FBX {
+    const std::string EXPORT_VERSION_STR = "7.4.0";
+    const uint32_t EXPORT_VERSION_INT = 7400; // 7.4 == 2014/2015
+    // FBX files have some hashed values that depend on the creation time field,
+    // but for now we don't actually know how to generate these.
+    // what we can do is set them to a known-working version.
+    // this is the data that Blender uses in their FBX export process.
+    const std::string GENERIC_CTIME = "1970-01-01 10:00:00:000";
+    const std::string GENERIC_FILEID =
+        "\x28\xb3\x2a\xeb\xb6\x24\xcc\xc2\xbf\xc8\xb0\x2a\xa9\x2b\xfc\xf1";
+    const std::string GENERIC_FOOTID =
+        "\xfa\xbc\xab\x09\xd0\xc8\xd4\x66\xb1\x76\xfb\x83\x1c\xf7\x26\x7e";
+    const std::string FOOT_MAGIC =
+        "\xf8\x5a\x8c\x6a\xde\xf5\xd9\x7e\xec\xe9\x0c\xe3\x75\x8f\x29\x0b";
+    const std::string COMMENT_UNDERLINE =
+        ";------------------------------------------------------------------";
+}
+
+using namespace Assimp;
+using namespace FBX;
+
+namespace Assimp {
+
+    // ---------------------------------------------------------------------
+    // Worker function for exporting a scene to binary FBX.
+    // Prototyped and registered in Exporter.cpp
+    void ExportSceneFBX (
+        const char* pFile,
+        IOSystem* pIOSystem,
+        const aiScene* pScene,
+        const ExportProperties* pProperties
+    ){
+        // initialize the exporter
+        FBXExporter exporter(pScene, pProperties);
+
+        // perform binary export
+        exporter.ExportBinary(pFile, pIOSystem);
+    }
+
+    // ---------------------------------------------------------------------
+    // Worker function for exporting a scene to ASCII FBX.
+    // Prototyped and registered in Exporter.cpp
+    void ExportSceneFBXA (
+        const char* pFile,
+        IOSystem* pIOSystem,
+        const aiScene* pScene,
+        const ExportProperties* pProperties
+    ){
+        // initialize the exporter
+        FBXExporter exporter(pScene, pProperties);
+
+        // perform ascii export
+        exporter.ExportAscii(pFile, pIOSystem);
+    }
+
+} // end of namespace Assimp
+
+FBXExporter::FBXExporter ( const aiScene* pScene, const ExportProperties* pProperties )
+: binary(false)
+, mScene(pScene)
+, mProperties(pProperties)
+, outfile()
+, connections()
+, mesh_uids()
+, material_uids()
+, node_uids() {
+    // will probably need to determine UIDs, connections, etc here.
+    // basically anything that needs to be known
+    // before we start writing sections to the stream.
+}
+
+void FBXExporter::ExportBinary (
+    const char* pFile,
+    IOSystem* pIOSystem
+){
+    // remember that we're exporting in binary mode
+    binary = true;
+
+    // we're not currently using these preferences,
+    // but clang will cry about it if we never touch it.
+    // TODO: some of these might be relevant to export
+    (void)mProperties;
+
+    // open the indicated file for writing (in binary mode)
+    outfile.reset(pIOSystem->Open(pFile,"wb"));
+    if (!outfile) {
+        throw DeadlyExportError(
+            "could not open output .fbx file: " + std::string(pFile)
+        );
+    }
+
+    // first a binary-specific file header
+    WriteBinaryHeader();
+
+    // the rest of the file is in node entries.
+    // we have to serialize each entry before we write to the output,
+    // as the first thing we write is the byte offset of the _next_ entry.
+    // Either that or we can skip back to write the offset when we finish.
+    WriteAllNodes();
+
+    // finally we have a binary footer to the file
+    WriteBinaryFooter();
+
+    // explicitly release file pointer,
+    // so we don't have to rely on class destruction.
+    outfile.reset();
+}
+
+void FBXExporter::ExportAscii (
+    const char* pFile,
+    IOSystem* pIOSystem
+){
+    // remember that we're exporting in ascii mode
+    binary = false;
+
+    // open the indicated file for writing in text mode
+    outfile.reset(pIOSystem->Open(pFile,"wt"));
+    if (!outfile) {
+        throw DeadlyExportError(
+            "could not open output .fbx file: " + std::string(pFile)
+        );
+    }
+
+    // write the ascii header
+    WriteAsciiHeader();
+
+    // write all the sections
+    WriteAllNodes();
+
+    // make sure the file ends with a newline.
+    // note: if the file is opened in text mode,
+    // this should do the right cross-platform thing.
+    outfile->Write("\n", 1, 1);
+
+    // explicitly release file pointer,
+    // so we don't have to rely on class destruction.
+    outfile.reset();
+}
+
+void FBXExporter::WriteAsciiHeader()
+{
+    // basically just a comment at the top of the file
+    std::stringstream head;
+    head << "; FBX " << EXPORT_VERSION_STR << " project file\n";
+    head << "; Created by the Open Asset Import Library (Assimp)\n";
+    head << "; http://assimp.org\n";
+    head << "; -------------------------------------------------\n";
+    const std::string ascii_header = head.str();
+    outfile->Write(ascii_header.c_str(), ascii_header.size(), 1);
+}
+
+void FBXExporter::WriteAsciiSectionHeader(const std::string& title)
+{
+    StreamWriterLE outstream(outfile);
+    std::stringstream s;
+    s << "\n\n; " << title << '\n';
+    s << FBX::COMMENT_UNDERLINE << "\n";
+    outstream.PutString(s.str());
+}
+
+void FBXExporter::WriteBinaryHeader()
+{
+    // first a specific sequence of 23 bytes, always the same
+    const char binary_header[24] = "Kaydara FBX Binary\x20\x20\x00\x1a\x00";
+    outfile->Write(binary_header, 1, 23);
+
+    // then FBX version number, "multiplied" by 1000, as little-endian uint32.
+    // so 7.3 becomes 7300 == 0x841C0000, 7.4 becomes 7400 == 0xE81C0000, etc
+    {
+        StreamWriterLE outstream(outfile);
+        outstream.PutU4(EXPORT_VERSION_INT);
+    } // StreamWriter destructor writes the data to the file
+
+    // after this the node data starts immediately
+    // (probably with the FBXHEaderExtension node)
+}
+
+void FBXExporter::WriteBinaryFooter()
+{
+    outfile->Write(NULL_RECORD.c_str(), NULL_RECORD.size(), 1);
+
+    outfile->Write(GENERIC_FOOTID.c_str(), GENERIC_FOOTID.size(), 1);
+
+    // here some padding is added for alignment to 16 bytes.
+    // if already aligned, the full 16 bytes is added.
+    size_t pos = outfile->Tell();
+    size_t pad = 16 - (pos % 16);
+    for (size_t i = 0; i < pad; ++i) {
+        outfile->Write("\x00", 1, 1);
+    }
+
+    // not sure what this is, but it seems to always be 0 in modern files
+    for (size_t i = 0; i < 4; ++i) {
+        outfile->Write("\x00", 1, 1);
+    }
+
+    // now the file version again
+    {
+        StreamWriterLE outstream(outfile);
+        outstream.PutU4(EXPORT_VERSION_INT);
+    } // StreamWriter destructor writes the data to the file
+
+    // and finally some binary footer added to all files
+    for (size_t i = 0; i < 120; ++i) {
+        outfile->Write("\x00", 1, 1);
+    }
+    outfile->Write(FOOT_MAGIC.c_str(), FOOT_MAGIC.size(), 1);
+}
+
+void FBXExporter::WriteAllNodes ()
+{
+    // header
+    // (and fileid, creation time, creator, if binary)
+    WriteHeaderExtension();
+
+    // global settings
+    WriteGlobalSettings();
+
+    // documents
+    WriteDocuments();
+
+    // references
+    WriteReferences();
+
+    // definitions
+    WriteDefinitions();
+
+    // objects
+    WriteObjects();
+
+    // connections
+    WriteConnections();
+
+    // WriteTakes? (deprecated since at least 2015 (fbx 7.4))
+}
+
+//FBXHeaderExtension top-level node
+void FBXExporter::WriteHeaderExtension ()
+{
+    if (!binary) {
+        // no title, follows directly from the top comment
+    }
+    FBX::Node n("FBXHeaderExtension");
+    StreamWriterLE outstream(outfile);
+    int indent = 0;
+
+    // begin node
+    n.Begin(outstream, binary, indent);
+
+    // write properties
+    // (none)
+
+    // finish properties
+    n.EndProperties(outstream, binary, indent, 0);
+
+    // begin children
+    n.BeginChildren(outstream, binary, indent);
+
+    indent = 1;
+
+    // write child nodes
+    FBX::Node::WritePropertyNode(
+        "FBXHeaderVersion", int32_t(1003), outstream, binary, indent
+    );
+    FBX::Node::WritePropertyNode(
+        "FBXVersion", int32_t(EXPORT_VERSION_INT), outstream, binary, indent
+    );
+    if (binary) {
+        FBX::Node::WritePropertyNode(
+            "EncryptionType", int32_t(0), outstream, binary, indent
+        );
+    }
+
+    FBX::Node CreationTimeStamp("CreationTimeStamp");
+    time_t rawtime;
+    time(&rawtime);
+    struct tm * now = localtime(&rawtime);
+    CreationTimeStamp.AddChild("Version", int32_t(1000));
+    CreationTimeStamp.AddChild("Year", int32_t(now->tm_year + 1900));
+    CreationTimeStamp.AddChild("Month", int32_t(now->tm_mon + 1));
+    CreationTimeStamp.AddChild("Day", int32_t(now->tm_mday));
+    CreationTimeStamp.AddChild("Hour", int32_t(now->tm_hour));
+    CreationTimeStamp.AddChild("Minute", int32_t(now->tm_min));
+    CreationTimeStamp.AddChild("Second", int32_t(now->tm_sec));
+    CreationTimeStamp.AddChild("Millisecond", int32_t(0));
+    CreationTimeStamp.Dump(outstream, binary, indent);
+
+    std::stringstream creator;
+    creator << "Open Asset Import Library (Assimp) " << aiGetVersionMajor()
+            << "." << aiGetVersionMinor() << "." << aiGetVersionRevision();
+    FBX::Node::WritePropertyNode(
+        "Creator", creator.str(), outstream, binary, indent
+    );
+
+    //FBX::Node sceneinfo("SceneInfo");
+    //sceneinfo.AddProperty("GlobalInfo" + FBX::SEPARATOR + "SceneInfo");
+    // not sure if any of this is actually needed,
+    // so just write an empty node for now.
+    //sceneinfo.Dump(outstream, binary, indent);
+
+    indent = 0;
+
+    // finish node
+    n.End(outstream, binary, indent, true);
+
+    // that's it for FBXHeaderExtension...
+    if (!binary) { return; }
+
+    // but binary files also need top-level FileID, CreationTime, Creator:
+    std::vector<uint8_t> raw(GENERIC_FILEID.size());
+    for (size_t i = 0; i < GENERIC_FILEID.size(); ++i) {
+        raw[i] = uint8_t(GENERIC_FILEID[i]);
+    }
+    FBX::Node::WritePropertyNode(
+        "FileId", raw, outstream, binary, indent
+    );
+    FBX::Node::WritePropertyNode(
+        "CreationTime", GENERIC_CTIME, outstream, binary, indent
+    );
+    FBX::Node::WritePropertyNode(
+        "Creator", creator.str(), outstream, binary, indent
+    );
+}
+
+void FBXExporter::WriteGlobalSettings ()
+{
+    if (!binary) {
+        // no title, follows directly from the header extension
+    }
+    FBX::Node gs("GlobalSettings");
+    gs.AddChild("Version", int32_t(1000));
+
+    FBX::Node p("Properties70");
+    p.AddP70int("UpAxis", 1);
+    p.AddP70int("UpAxisSign", 1);
+    p.AddP70int("FrontAxis", 2);
+    p.AddP70int("FrontAxisSign", 1);
+    p.AddP70int("CoordAxis", 0);
+    p.AddP70int("CoordAxisSign", 1);
+    p.AddP70int("OriginalUpAxis", 1);
+    p.AddP70int("OriginalUpAxisSign", 1);
+    p.AddP70double("UnitScaleFactor", 1.0);
+    p.AddP70double("OriginalUnitScaleFactor", 1.0);
+    p.AddP70color("AmbientColor", 0.0, 0.0, 0.0);
+    p.AddP70string("DefaultCamera", "Producer Perspective");
+    p.AddP70enum("TimeMode", 11);
+    p.AddP70enum("TimeProtocol", 2);
+    p.AddP70enum("SnapOnFrameMode", 0);
+    p.AddP70time("TimeSpanStart", 0); // TODO: animation support
+    p.AddP70time("TimeSpanStop", FBX::SECOND); // TODO: animation support
+    p.AddP70double("CustomFrameRate", -1.0);
+    p.AddP70("TimeMarker", "Compound", "", ""); // not sure what this is
+    p.AddP70int("CurrentTimeMarker", -1);
+    gs.AddChild(p);
+
+    gs.Dump(outfile, binary, 0);
+}
+
+void FBXExporter::WriteDocuments ()
+{
+    if (!binary) {
+        WriteAsciiSectionHeader("Documents Description");
+    }
+    
+    // not sure what the use of multiple documents would be,
+    // or whether any end-application supports it
+    FBX::Node docs("Documents");
+    docs.AddChild("Count", int32_t(1));
+    FBX::Node doc("Document");
+
+    // generate uid
+    int64_t uid = generate_uid();
+    doc.AddProperties(uid, "", "Scene");
+    FBX::Node p("Properties70");
+    p.AddP70("SourceObject", "object", "", ""); // what is this even for?
+    p.AddP70string("ActiveAnimStackName", ""); // should do this properly?
+    doc.AddChild(p);
+
+    // UID for root node in scene hierarchy.
+    // always set to 0 in the case of a single document.
+    // not sure what happens if more than one document exists,
+    // but that won't matter to us as we're exporting a single scene.
+    doc.AddChild("RootNode", int64_t(0));
+
+    docs.AddChild(doc);
+    docs.Dump(outfile, binary, 0);
+}
+
+void FBXExporter::WriteReferences ()
+{
+    if (!binary) {
+        WriteAsciiSectionHeader("Document References");
+    }
+    // always empty for now.
+    // not really sure what this is for.
+    FBX::Node n("References");
+    n.force_has_children = true;
+    n.Dump(outfile, binary, 0);
+}
+
+
+// ---------------------------------------------------------------
+// some internal helper functions used for writing the definitions
+// (before any actual data is written)
+// ---------------------------------------------------------------
+
+size_t count_nodes(const aiNode* n) {
+    size_t count = 1;
+    for (size_t i = 0; i < n->mNumChildren; ++i) {
+        count += count_nodes(n->mChildren[i]);
+    }
+    return count;
+}
+
+bool has_phong_mat(const aiScene* scene)
+{
+    // just search for any material with a shininess exponent
+    for (size_t i = 0; i < scene->mNumMaterials; ++i) {
+        aiMaterial* mat = scene->mMaterials[i];
+        float shininess = 0;
+        mat->Get(AI_MATKEY_SHININESS, shininess);
+        if (shininess > 0) {
+            return true;
+        }
+    }
+    return false;
+}
+
+size_t count_images(const aiScene* scene) {
+    std::unordered_set<std::string> images;
+    aiString texpath;
+    for (size_t i = 0; i < scene->mNumMaterials; ++i) {
+        aiMaterial* mat = scene->mMaterials[i];
+        for (
+            size_t tt = aiTextureType_DIFFUSE;
+            tt < aiTextureType_UNKNOWN;
+            ++tt
+        ){
+            const aiTextureType textype = static_cast<aiTextureType>(tt);
+            const size_t texcount = mat->GetTextureCount(textype);
+            for (unsigned int j = 0; j < texcount; ++j) {
+                mat->GetTexture(textype, j, &texpath);
+                images.insert(std::string(texpath.C_Str()));
+            }
+        }
+    }
+    return images.size();
+}
+
+size_t count_textures(const aiScene* scene) {
+    size_t count = 0;
+    for (size_t i = 0; i < scene->mNumMaterials; ++i) {
+        aiMaterial* mat = scene->mMaterials[i];
+        for (
+            size_t tt = aiTextureType_DIFFUSE;
+            tt < aiTextureType_UNKNOWN;
+            ++tt
+        ){
+            // TODO: handle layered textures
+            if (mat->GetTextureCount(static_cast<aiTextureType>(tt)) > 0) {
+                count += 1;
+            }
+        }
+    }
+    return count;
+}
+
+size_t count_deformers(const aiScene* scene) {
+    size_t count = 0;
+    for (size_t i = 0; i < scene->mNumMeshes; ++i) {
+        const size_t n = scene->mMeshes[i]->mNumBones;
+        if (n) {
+            // 1 main deformer, 1 subdeformer per bone
+            count += n + 1;
+        }
+    }
+    return count;
+}
+
+void FBXExporter::WriteDefinitions ()
+{
+    // basically this is just bookkeeping:
+    // determining how many of each type of object there are
+    // and specifying the base properties to use when otherwise unspecified.
+
+    // ascii section header
+    if (!binary) {
+        WriteAsciiSectionHeader("Object definitions");
+    }
+
+    // we need to count the objects
+    int32_t count;
+    int32_t total_count = 0;
+
+    // and store them
+    std::vector<FBX::Node> object_nodes;
+    FBX::Node n, pt, p;
+
+    // GlobalSettings
+    // this seems to always be here in Maya exports
+    n = FBX::Node("ObjectType", "GlobalSettings");
+    count = 1;
+    n.AddChild("Count", count);
+    object_nodes.push_back(n);
+    total_count += count;
+
+    // AnimationStack / FbxAnimStack
+    // this seems to always be here in Maya exports,
+    // but no harm seems to come of leaving it out.
+    count = mScene->mNumAnimations;
+    if (count) {
+        n = FBX::Node("ObjectType", "AnimationStack");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxAnimStack");
+        p = FBX::Node("Properties70");
+        p.AddP70string("Description", "");
+        p.AddP70time("LocalStart", 0);
+        p.AddP70time("LocalStop", 0);
+        p.AddP70time("ReferenceStart", 0);
+        p.AddP70time("ReferenceStop", 0);
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // AnimationLayer / FbxAnimLayer
+    // this seems to always be here in Maya exports,
+    // but no harm seems to come of leaving it out.
+    // Assimp doesn't support animation layers,
+    // so there will be one per aiAnimation
+    count = mScene->mNumAnimations;
+    if (count) {
+        n = FBX::Node("ObjectType", "AnimationLayer");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FBXAnimLayer");
+        p = FBX::Node("Properties70");
+        p.AddP70("Weight", "Number", "", "A", double(100));
+        p.AddP70bool("Mute", 0);
+        p.AddP70bool("Solo", 0);
+        p.AddP70bool("Lock", 0);
+        p.AddP70color("Color", 0.8, 0.8, 0.8);
+        p.AddP70("BlendMode", "enum", "", "", int32_t(0));
+        p.AddP70("RotationAccumulationMode", "enum", "", "", int32_t(0));
+        p.AddP70("ScaleAccumulationMode", "enum", "", "", int32_t(0));
+        p.AddP70("BlendModeBypass", "ULongLong", "", "", int64_t(0));
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // NodeAttribute
+    // this is completely absurd.
+    // there can only be one "NodeAttribute" template,
+    // but FbxSkeleton, FbxCamera, FbxLight all are "NodeAttributes".
+    // so if only one exists we should set the template for that,
+    // otherwise... we just pick one :/.
+    // the others have to set all their properties every instance,
+    // because there's no template.
+    count = 1; // TODO: select properly
+    if (count) {
+        // FbxSkeleton
+        n = FBX::Node("ObjectType", "NodeAttribute");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxSkeleton");
+        p = FBX::Node("Properties70");
+        p.AddP70color("Color", 0.8, 0.8, 0.8);
+        p.AddP70double("Size", 33.333333333333);
+        p.AddP70("LimbLength", "double", "Number", "H", double(1));
+        // note: not sure what the "H" flag is for - hidden?
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Model / FbxNode
+    // <~~ node hierarchy
+    count = int32_t(count_nodes(mScene->mRootNode)) - 1; // (not counting root node)
+    if (count) {
+        n = FBX::Node("ObjectType", "Model");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxNode");
+        p = FBX::Node("Properties70");
+        p.AddP70enum("QuaternionInterpolate", 0);
+        p.AddP70vector("RotationOffset", 0.0, 0.0, 0.0);
+        p.AddP70vector("RotationPivot", 0.0, 0.0, 0.0);
+        p.AddP70vector("ScalingOffset", 0.0, 0.0, 0.0);
+        p.AddP70vector("ScalingPivot", 0.0, 0.0, 0.0);
+        p.AddP70bool("TranslationActive", 0);
+        p.AddP70vector("TranslationMin", 0.0, 0.0, 0.0);
+        p.AddP70vector("TranslationMax", 0.0, 0.0, 0.0);
+        p.AddP70bool("TranslationMinX", 0);
+        p.AddP70bool("TranslationMinY", 0);
+        p.AddP70bool("TranslationMinZ", 0);
+        p.AddP70bool("TranslationMaxX", 0);
+        p.AddP70bool("TranslationMaxY", 0);
+        p.AddP70bool("TranslationMaxZ", 0);
+        p.AddP70enum("RotationOrder", 0);
+        p.AddP70bool("RotationSpaceForLimitOnly", 0);
+        p.AddP70double("RotationStiffnessX", 0.0);
+        p.AddP70double("RotationStiffnessY", 0.0);
+        p.AddP70double("RotationStiffnessZ", 0.0);
+        p.AddP70double("AxisLen", 10.0);
+        p.AddP70vector("PreRotation", 0.0, 0.0, 0.0);
+        p.AddP70vector("PostRotation", 0.0, 0.0, 0.0);
+        p.AddP70bool("RotationActive", 0);
+        p.AddP70vector("RotationMin", 0.0, 0.0, 0.0);
+        p.AddP70vector("RotationMax", 0.0, 0.0, 0.0);
+        p.AddP70bool("RotationMinX", 0);
+        p.AddP70bool("RotationMinY", 0);
+        p.AddP70bool("RotationMinZ", 0);
+        p.AddP70bool("RotationMaxX", 0);
+        p.AddP70bool("RotationMaxY", 0);
+        p.AddP70bool("RotationMaxZ", 0);
+        p.AddP70enum("InheritType", 0);
+        p.AddP70bool("ScalingActive", 0);
+        p.AddP70vector("ScalingMin", 0.0, 0.0, 0.0);
+        p.AddP70vector("ScalingMax", 1.0, 1.0, 1.0);
+        p.AddP70bool("ScalingMinX", 0);
+        p.AddP70bool("ScalingMinY", 0);
+        p.AddP70bool("ScalingMinZ", 0);
+        p.AddP70bool("ScalingMaxX", 0);
+        p.AddP70bool("ScalingMaxY", 0);
+        p.AddP70bool("ScalingMaxZ", 0);
+        p.AddP70vector("GeometricTranslation", 0.0, 0.0, 0.0);
+        p.AddP70vector("GeometricRotation", 0.0, 0.0, 0.0);
+        p.AddP70vector("GeometricScaling", 1.0, 1.0, 1.0);
+        p.AddP70double("MinDampRangeX", 0.0);
+        p.AddP70double("MinDampRangeY", 0.0);
+        p.AddP70double("MinDampRangeZ", 0.0);
+        p.AddP70double("MaxDampRangeX", 0.0);
+        p.AddP70double("MaxDampRangeY", 0.0);
+        p.AddP70double("MaxDampRangeZ", 0.0);
+        p.AddP70double("MinDampStrengthX", 0.0);
+        p.AddP70double("MinDampStrengthY", 0.0);
+        p.AddP70double("MinDampStrengthZ", 0.0);
+        p.AddP70double("MaxDampStrengthX", 0.0);
+        p.AddP70double("MaxDampStrengthY", 0.0);
+        p.AddP70double("MaxDampStrengthZ", 0.0);
+        p.AddP70double("PreferedAngleX", 0.0);
+        p.AddP70double("PreferedAngleY", 0.0);
+        p.AddP70double("PreferedAngleZ", 0.0);
+        p.AddP70("LookAtProperty", "object", "", "");
+        p.AddP70("UpVectorProperty", "object", "", "");
+        p.AddP70bool("Show", 1);
+        p.AddP70bool("NegativePercentShapeSupport", 1);
+        p.AddP70int("DefaultAttributeIndex", -1);
+        p.AddP70bool("Freeze", 0);
+        p.AddP70bool("LODBox", 0);
+        p.AddP70(
+            "Lcl Translation", "Lcl Translation", "", "A",
+            double(0), double(0), double(0)
+        );
+        p.AddP70(
+            "Lcl Rotation", "Lcl Rotation", "", "A",
+            double(0), double(0), double(0)
+        );
+        p.AddP70(
+            "Lcl Scaling", "Lcl Scaling", "", "A",
+            double(1), double(1), double(1)
+        );
+        p.AddP70("Visibility", "Visibility", "", "A", double(1));
+        p.AddP70(
+            "Visibility Inheritance", "Visibility Inheritance", "", "",
+            int32_t(1)
+        );
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Geometry / FbxMesh
+    // <~~ aiMesh
+    count = mScene->mNumMeshes;
+    if (count) {
+        n = FBX::Node("ObjectType", "Geometry");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxMesh");
+        p = FBX::Node("Properties70");
+        p.AddP70color("Color", 0, 0, 0);
+        p.AddP70vector("BBoxMin", 0, 0, 0);
+        p.AddP70vector("BBoxMax", 0, 0, 0);
+        p.AddP70bool("Primary Visibility", 1);
+        p.AddP70bool("Casts Shadows", 1);
+        p.AddP70bool("Receive Shadows", 1);
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Material / FbxSurfacePhong, FbxSurfaceLambert, FbxSurfaceMaterial
+    // <~~ aiMaterial
+    // basically if there's any phong material this is defined as phong,
+    // and otherwise lambert.
+    // More complex materials cause a bare-bones FbxSurfaceMaterial definition
+    // and are treated specially, as they're not really supported by FBX.
+    // TODO: support Maya's Stingray PBS material
+    count = mScene->mNumMaterials;
+    if (count) {
+        bool has_phong = has_phong_mat(mScene);
+        n = FBX::Node("ObjectType", "Material");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate");
+        if (has_phong) {
+            pt.AddProperty("FbxSurfacePhong");
+        } else {
+            pt.AddProperty("FbxSurfaceLambert");
+        }
+        p = FBX::Node("Properties70");
+        if (has_phong) {
+            p.AddP70string("ShadingModel", "Phong");
+        } else {
+            p.AddP70string("ShadingModel", "Lambert");
+        }
+        p.AddP70bool("MultiLayer", 0);
+        p.AddP70colorA("EmissiveColor", 0.0, 0.0, 0.0);
+        p.AddP70numberA("EmissiveFactor", 1.0);
+        p.AddP70colorA("AmbientColor", 0.2, 0.2, 0.2);
+        p.AddP70numberA("AmbientFactor", 1.0);
+        p.AddP70colorA("DiffuseColor", 0.8, 0.8, 0.8);
+        p.AddP70numberA("DiffuseFactor", 1.0);
+        p.AddP70vector("Bump", 0.0, 0.0, 0.0);
+        p.AddP70vector("NormalMap", 0.0, 0.0, 0.0);
+        p.AddP70double("BumpFactor", 1.0);
+        p.AddP70colorA("TransparentColor", 0.0, 0.0, 0.0);
+        p.AddP70numberA("TransparencyFactor", 0.0);
+        p.AddP70color("DisplacementColor", 0.0, 0.0, 0.0);
+        p.AddP70double("DisplacementFactor", 1.0);
+        p.AddP70color("VectorDisplacementColor", 0.0, 0.0, 0.0);
+        p.AddP70double("VectorDisplacementFactor", 1.0);
+        if (has_phong) {
+            p.AddP70colorA("SpecularColor", 0.2, 0.2, 0.2);
+            p.AddP70numberA("SpecularFactor", 1.0);
+            p.AddP70numberA("ShininessExponent", 20.0);
+            p.AddP70colorA("ReflectionColor", 0.0, 0.0, 0.0);
+            p.AddP70numberA("ReflectionFactor", 1.0);
+        }
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Video / FbxVideo
+    // one for each image file.
+    count = int32_t(count_images(mScene));
+    if (count) {
+        n = FBX::Node("ObjectType", "Video");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxVideo");
+        p = FBX::Node("Properties70");
+        p.AddP70bool("ImageSequence", 0);
+        p.AddP70int("ImageSequenceOffset", 0);
+        p.AddP70double("FrameRate", 0.0);
+        p.AddP70int("LastFrame", 0);
+        p.AddP70int("Width", 0);
+        p.AddP70int("Height", 0);
+        p.AddP70("Path", "KString", "XRefUrl", "", "");
+        p.AddP70int("StartFrame", 0);
+        p.AddP70int("StopFrame", 0);
+        p.AddP70double("PlaySpeed", 0.0);
+        p.AddP70time("Offset", 0);
+        p.AddP70enum("InterlaceMode", 0);
+        p.AddP70bool("FreeRunning", 0);
+        p.AddP70bool("Loop", 0);
+        p.AddP70enum("AccessMode", 0);
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Texture / FbxFileTexture
+    // <~~ aiTexture
+    count = int32_t(count_textures(mScene));
+    if (count) {
+        n = FBX::Node("ObjectType", "Texture");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxFileTexture");
+        p = FBX::Node("Properties70");
+        p.AddP70enum("TextureTypeUse", 0);
+        p.AddP70numberA("Texture alpha", 1.0);
+        p.AddP70enum("CurrentMappingType", 0);
+        p.AddP70enum("WrapModeU", 0);
+        p.AddP70enum("WrapModeV", 0);
+        p.AddP70bool("UVSwap", 0);
+        p.AddP70bool("PremultiplyAlpha", 1);
+        p.AddP70vectorA("Translation", 0.0, 0.0, 0.0);
+        p.AddP70vectorA("Rotation", 0.0, 0.0, 0.0);
+        p.AddP70vectorA("Scaling", 1.0, 1.0, 1.0);
+        p.AddP70vector("TextureRotationPivot", 0.0, 0.0, 0.0);
+        p.AddP70vector("TextureScalingPivot", 0.0, 0.0, 0.0);
+        p.AddP70enum("CurrentTextureBlendMode", 1);
+        p.AddP70string("UVSet", "default");
+        p.AddP70bool("UseMaterial", 0);
+        p.AddP70bool("UseMipMap", 0);
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // AnimationCurveNode / FbxAnimCurveNode
+    count = mScene->mNumAnimations * 3;
+    if (count) {
+        n = FBX::Node("ObjectType", "AnimationCurveNode");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "FbxAnimCurveNode");
+        p = FBX::Node("Properties70");
+        p.AddP70("d", "Compound", "", "");
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // AnimationCurve / FbxAnimCurve
+    count = mScene->mNumAnimations * 9;
+    if (count) {
+        n = FBX::Node("ObjectType", "AnimationCurve");
+        n.AddChild("Count", count);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Pose
+    count = 0;
+    for (size_t i = 0; i < mScene->mNumMeshes; ++i) {
+        aiMesh* mesh = mScene->mMeshes[i];
+        if (mesh->HasBones()) { ++count; }
+    }
+    if (count) {
+        n = FBX::Node("ObjectType", "Pose");
+        n.AddChild("Count", count);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // Deformer
+    count = int32_t(count_deformers(mScene));
+    if (count) {
+        n = FBX::Node("ObjectType", "Deformer");
+        n.AddChild("Count", count);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // (template)
+    count = 0;
+    if (count) {
+        n = FBX::Node("ObjectType", "");
+        n.AddChild("Count", count);
+        pt = FBX::Node("PropertyTemplate", "");
+        p = FBX::Node("Properties70");
+        pt.AddChild(p);
+        n.AddChild(pt);
+        object_nodes.push_back(n);
+        total_count += count;
+    }
+
+    // now write it all
+    FBX::Node defs("Definitions");
+    defs.AddChild("Version", int32_t(100));
+    defs.AddChild("Count", int32_t(total_count));
+    for (auto &n : object_nodes) { defs.AddChild(n); }
+    defs.Dump(outfile, binary, 0);
+}
+
+
+// -------------------------------------------------------------------
+// some internal helper functions used for writing the objects section
+// (which holds the actual data)
+// -------------------------------------------------------------------
+
+aiNode* get_node_for_mesh(unsigned int meshIndex, aiNode* node)
+{
+    for (size_t i = 0; i < node->mNumMeshes; ++i) {
+        if (node->mMeshes[i] == meshIndex) {
+            return node;
+        }
+    }
+    for (size_t i = 0; i < node->mNumChildren; ++i) {
+        aiNode* ret = get_node_for_mesh(meshIndex, node->mChildren[i]);
+        if (ret) { return ret; }
+    }
+    return nullptr;
+}
+
+aiMatrix4x4 get_world_transform(const aiNode* node, const aiScene* scene)
+{
+    std::vector<const aiNode*> node_chain;
+    while (node != scene->mRootNode) {
+        node_chain.push_back(node);
+        node = node->mParent;
+    }
+    aiMatrix4x4 transform;
+    for (auto n = node_chain.rbegin(); n != node_chain.rend(); ++n) {
+        transform *= (*n)->mTransformation;
+    }
+    return transform;
+}
+
+int64_t to_ktime(double ticks, const aiAnimation* anim) {
+    if (anim->mTicksPerSecond <= 0) {
+        return static_cast<int64_t>(ticks) * FBX::SECOND;
+    }
+    return (static_cast<int64_t>(ticks) / static_cast<int64_t>(anim->mTicksPerSecond)) * FBX::SECOND;
+}
+
+int64_t to_ktime(double time) {
+    return (static_cast<int64_t>(time * FBX::SECOND));
+}
+
+void FBXExporter::WriteObjects ()
+{
+    if (!binary) {
+        WriteAsciiSectionHeader("Object properties");
+    }
+    // numbers should match those given in definitions! make sure to check
+    StreamWriterLE outstream(outfile);
+    FBX::Node object_node("Objects");
+    int indent = 0;
+    object_node.Begin(outstream, binary, indent);
+    object_node.EndProperties(outstream, binary, indent);
+    object_node.BeginChildren(outstream, binary, indent);
+
+    // geometry (aiMesh)
+    mesh_uids.clear();
+    indent = 1;
+    for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
+        // it's all about this mesh
+        aiMesh* m = mScene->mMeshes[mi];
+
+        // start the node record
+        FBX::Node n("Geometry");
+        int64_t uid = generate_uid();
+        mesh_uids.push_back(uid);
+        n.AddProperty(uid);
+        n.AddProperty(FBX::SEPARATOR + "Geometry");
+        n.AddProperty("Mesh");
+        n.Begin(outstream, binary, indent);
+        n.DumpProperties(outstream, binary, indent);
+        n.EndProperties(outstream, binary, indent);
+        n.BeginChildren(outstream, binary, indent);
+        indent = 2;
+
+        // output vertex data - each vertex should be unique (probably)
+        std::vector<double> flattened_vertices;
+        // index of original vertex in vertex data vector
+        std::vector<int32_t> vertex_indices;
+        // map of vertex value to its index in the data vector
+        std::map<aiVector3D,size_t> index_by_vertex_value;
+        int32_t index = 0;
+        for (size_t vi = 0; vi < m->mNumVertices; ++vi) {
+            aiVector3D vtx = m->mVertices[vi];
+            auto elem = index_by_vertex_value.find(vtx);
+            if (elem == index_by_vertex_value.end()) {
+                vertex_indices.push_back(index);
+                index_by_vertex_value[vtx] = index;
+                flattened_vertices.push_back(vtx[0]);
+                flattened_vertices.push_back(vtx[1]);
+                flattened_vertices.push_back(vtx[2]);
+                ++index;
+            } else {
+                vertex_indices.push_back(int32_t(elem->second));
+            }
+        }
+        FBX::Node::WritePropertyNode(
+            "Vertices", flattened_vertices, outstream, binary, indent
+        );
+
+        // output polygon data as a flattened array of vertex indices.
+        // the last vertex index of each polygon is negated and - 1
+        std::vector<int32_t> polygon_data;
+        for (size_t fi = 0; fi < m->mNumFaces; ++fi) {
+            const aiFace &f = m->mFaces[fi];
+            for (size_t pvi = 0; pvi < f.mNumIndices - 1; ++pvi) {
+                polygon_data.push_back(vertex_indices[f.mIndices[pvi]]);
+            }
+            polygon_data.push_back(
+                -1 - vertex_indices[f.mIndices[f.mNumIndices-1]]
+            );
+        }
+        FBX::Node::WritePropertyNode(
+            "PolygonVertexIndex", polygon_data, outstream, binary, indent
+        );
+
+        // here could be edges but they're insane.
+        // it's optional anyway, so let's ignore it.
+
+        FBX::Node::WritePropertyNode(
+            "GeometryVersion", int32_t(124), outstream, binary, indent
+        );
+
+        // normals, if any
+        if (m->HasNormals()) {
+            FBX::Node normals("LayerElementNormal", int32_t(0));
+            normals.Begin(outstream, binary, indent);
+            normals.DumpProperties(outstream, binary, indent);
+            normals.EndProperties(outstream, binary, indent);
+            normals.BeginChildren(outstream, binary, indent);
+            indent = 3;
+            FBX::Node::WritePropertyNode(
+                "Version", int32_t(101), outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "Name", "", outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "MappingInformationType", "ByPolygonVertex",
+                outstream, binary, indent
+            );
+            // TODO: vertex-normals or indexed normals when appropriate
+            FBX::Node::WritePropertyNode(
+                "ReferenceInformationType", "Direct",
+                outstream, binary, indent
+            );
+            std::vector<double> normal_data;
+            normal_data.reserve(3 * polygon_data.size());
+            for (size_t fi = 0; fi < m->mNumFaces; ++fi) {
+                const aiFace &f = m->mFaces[fi];
+                for (size_t pvi = 0; pvi < f.mNumIndices; ++pvi) {
+                    const aiVector3D &n = m->mNormals[f.mIndices[pvi]];
+                    normal_data.push_back(n.x);
+                    normal_data.push_back(n.y);
+                    normal_data.push_back(n.z);
+                }
+            }
+            FBX::Node::WritePropertyNode(
+                "Normals", normal_data, outstream, binary, indent
+            );
+            // note: version 102 has a NormalsW also... not sure what it is,
+            // so we can stick with version 101 for now.
+            indent = 2;
+            normals.End(outstream, binary, indent, true);
+        }
+
+        // uvs, if any
+        for (size_t uvi = 0; uvi < m->GetNumUVChannels(); ++uvi) {
+            if (m->mNumUVComponents[uvi] > 2) {
+                // FBX only supports 2-channel UV maps...
+                // or at least i'm not sure how to indicate a different number
+                std::stringstream err;
+                err << "Only 2-channel UV maps supported by FBX,";
+                err << " but mesh " << mi;
+                if (m->mName.length) {
+                    err << " (" << m->mName.C_Str() << ")";
+                }
+                err << " UV map " << uvi;
+                err << " has " << m->mNumUVComponents[uvi];
+                err << " components! Data will be preserved,";
+                err << " but may be incorrectly interpreted on load.";
+                ASSIMP_LOG_WARN(err.str());
+            }
+            FBX::Node uv("LayerElementUV", int32_t(uvi));
+            uv.Begin(outstream, binary, indent);
+            uv.DumpProperties(outstream, binary, indent);
+            uv.EndProperties(outstream, binary, indent);
+            uv.BeginChildren(outstream, binary, indent);
+            indent = 3;
+            FBX::Node::WritePropertyNode(
+                "Version", int32_t(101), outstream, binary, indent
+            );
+            // it doesn't seem like assimp keeps the uv map name,
+            // so just leave it blank.
+            FBX::Node::WritePropertyNode(
+                "Name", "", outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "MappingInformationType", "ByPolygonVertex",
+                outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "ReferenceInformationType", "IndexToDirect",
+                outstream, binary, indent
+            );
+
+            std::vector<double> uv_data;
+            std::vector<int32_t> uv_indices;
+            std::map<aiVector3D,int32_t> index_by_uv;
+            int32_t index = 0;
+            for (size_t fi = 0; fi < m->mNumFaces; ++fi) {
+                const aiFace &f = m->mFaces[fi];
+                for (size_t pvi = 0; pvi < f.mNumIndices; ++pvi) {
+                    const aiVector3D &uv =
+                        m->mTextureCoords[uvi][f.mIndices[pvi]];
+                    auto elem = index_by_uv.find(uv);
+                    if (elem == index_by_uv.end()) {
+                        index_by_uv[uv] = index;
+                        uv_indices.push_back(index);
+                        for (unsigned int x = 0; x < m->mNumUVComponents[uvi]; ++x) {
+                            uv_data.push_back(uv[x]);
+                        }
+                        ++index;
+                    } else {
+                        uv_indices.push_back(elem->second);
+                    }
+                }
+            }
+            FBX::Node::WritePropertyNode(
+                "UV", uv_data, outstream, binary, indent
+            );
+            FBX::Node::WritePropertyNode(
+                "UVIndex", uv_indices, outstream, binary, indent
+            );
+            indent = 2;
+            uv.End(outstream, binary, indent, true);
+        }
+
+        // i'm not really sure why this material section exists,
+        // as the material is linked via "Connections".
+        // it seems to always have the same "0" value.
+        FBX::Node mat("LayerElementMaterial", int32_t(0));
+        mat.AddChild("Version", int32_t(101));
+        mat.AddChild("Name", "");
+        mat.AddChild("MappingInformationType", "AllSame");
+        mat.AddChild("ReferenceInformationType", "IndexToDirect");
+        std::vector<int32_t> mat_indices = {0};
+        mat.AddChild("Materials", mat_indices);
+        mat.Dump(outstream, binary, indent);
+
+        // finally we have the layer specifications,
+        // which select the normals / UV set / etc to use.
+        // TODO: handle multiple uv sets correctly?
+        FBX::Node layer("Layer", int32_t(0));
+        layer.AddChild("Version", int32_t(100));
+        FBX::Node le("LayerElement");
+        le.AddChild("Type", "LayerElementNormal");
+        le.AddChild("TypedIndex", int32_t(0));
+        layer.AddChild(le);
+        le = FBX::Node("LayerElement");
+        le.AddChild("Type", "LayerElementMaterial");
+        le.AddChild("TypedIndex", int32_t(0));
+        layer.AddChild(le);
+        le = FBX::Node("LayerElement");
+        le.AddChild("Type", "LayerElementUV");
+        le.AddChild("TypedIndex", int32_t(0));
+        layer.AddChild(le);
+        layer.Dump(outstream, binary, indent);
+
+        // finish the node record
+        indent = 1;
+        n.End(outstream, binary, indent, true);
+    }
+
+    // aiMaterial
+    material_uids.clear();
+    for (size_t i = 0; i < mScene->mNumMaterials; ++i) {
+        // it's all about this material
+        aiMaterial* m = mScene->mMaterials[i];
+
+        // these are used to receive material data
+        float f; aiColor3D c;
+
+        // start the node record
+        FBX::Node n("Material");
+
+        int64_t uid = generate_uid();
+        material_uids.push_back(uid);
+        n.AddProperty(uid);
+
+        aiString name;
+        m->Get(AI_MATKEY_NAME, name);
+        n.AddProperty(name.C_Str() + FBX::SEPARATOR + "Material");
+
+        n.AddProperty("");
+
+        n.AddChild("Version", int32_t(102));
+        f = 0;
+        m->Get(AI_MATKEY_SHININESS, f);
+        bool phong = (f > 0);
+        if (phong) {
+            n.AddChild("ShadingModel", "phong");
+        } else {
+            n.AddChild("ShadingModel", "lambert");
+        }
+        n.AddChild("MultiLayer", int32_t(0));
+
+        FBX::Node p("Properties70");
+
+        // materials exported using the FBX SDK have two sets of fields.
+        // there are the properties specified in the PropertyTemplate,
+        // which are those supported by the modernFBX SDK,
+        // and an extra set of properties with simpler names.
+        // The extra properties are a legacy material system from pre-2009.
+        //
+        // In the modern system, each property has "color" and "factor".
+        // Generally the interpretation of these seems to be
+        // that the colour is multiplied by the factor before use,
+        // but this is not always clear-cut.
+        //
+        // Usually assimp only stores the colour,
+        // so we can just leave the factors at the default "1.0".
+
+        // first we can export the "standard" properties
+        if (m->Get(AI_MATKEY_COLOR_AMBIENT, c) == aiReturn_SUCCESS) {
+            p.AddP70colorA("AmbientColor", c.r, c.g, c.b);
+            //p.AddP70numberA("AmbientFactor", 1.0);
+        }
+        if (m->Get(AI_MATKEY_COLOR_DIFFUSE, c) == aiReturn_SUCCESS) {
+            p.AddP70colorA("DiffuseColor", c.r, c.g, c.b);
+            //p.AddP70numberA("DiffuseFactor", 1.0);
+        }
+        if (m->Get(AI_MATKEY_COLOR_TRANSPARENT, c) == aiReturn_SUCCESS) {
+            // "TransparentColor" / "TransparencyFactor"...
+            // thanks FBX, for your insightful interpretation of consistency
+            p.AddP70colorA("TransparentColor", c.r, c.g, c.b);
+            // TransparencyFactor defaults to 0.0, so set it to 1.0.
+            // note: Maya always sets this to 1.0,
+            // so we can't use it sensibly as "Opacity".
+            // In stead we rely on the legacy "Opacity" value, below.
+            // Blender also relies on "Opacity" not "TransparencyFactor",
+            // probably for a similar reason.
+            p.AddP70numberA("TransparencyFactor", 1.0);
+        }
+        if (m->Get(AI_MATKEY_COLOR_REFLECTIVE, c) == aiReturn_SUCCESS) {
+            p.AddP70colorA("ReflectionColor", c.r, c.g, c.b);
+        }
+        if (m->Get(AI_MATKEY_REFLECTIVITY, f) == aiReturn_SUCCESS) {
+            p.AddP70numberA("ReflectionFactor", f);
+        }
+        if (phong) {
+            if (m->Get(AI_MATKEY_COLOR_SPECULAR, c) == aiReturn_SUCCESS) {
+                p.AddP70colorA("SpecularColor", c.r, c.g, c.b);
+            }
+            if (m->Get(AI_MATKEY_SHININESS_STRENGTH, f) == aiReturn_SUCCESS) {
+                p.AddP70numberA("ShininessFactor", f);
+            }
+            if (m->Get(AI_MATKEY_SHININESS, f) == aiReturn_SUCCESS) {
+                p.AddP70numberA("ShininessExponent", f);
+            }
+            if (m->Get(AI_MATKEY_REFLECTIVITY, f) == aiReturn_SUCCESS) {
+                p.AddP70numberA("ReflectionFactor", f);
+            }
+        }
+
+        // Now the legacy system.
+        // For safety let's include it.
+        // thrse values don't exist in the property template,
+        // and usually are completely ignored when loading.
+        // One notable exception is the "Opacity" property,
+        // which Blender uses as (1.0 - alpha).
+        c.r = 0.0f; c.g = 0.0f; c.b = 0.0f;
+        m->Get(AI_MATKEY_COLOR_EMISSIVE, c);
+        p.AddP70vector("Emissive", c.r, c.g, c.b);
+        c.r = 0.2f; c.g = 0.2f; c.b = 0.2f;
+        m->Get(AI_MATKEY_COLOR_AMBIENT, c);
+        p.AddP70vector("Ambient", c.r, c.g, c.b);
+        c.r = 0.8f; c.g = 0.8f; c.b = 0.8f;
+        m->Get(AI_MATKEY_COLOR_DIFFUSE, c);
+        p.AddP70vector("Diffuse", c.r, c.g, c.b);
+        // The FBX SDK determines "Opacity" from transparency colour (RGB)
+        // and factor (F) as: O = (1.0 - F * ((R + G + B) / 3)).
+        // However we actually have an opacity value,
+        // so we should take it from AI_MATKEY_OPACITY if possible.
+        // It might make more sense to use TransparencyFactor,
+        // but Blender actually loads "Opacity" correctly, so let's use it.
+        f = 1.0f;
+        if (m->Get(AI_MATKEY_COLOR_TRANSPARENT, c) == aiReturn_SUCCESS) {
+            f = 1.0f - ((c.r + c.g + c.b) / 3.0f);
+        }
+        m->Get(AI_MATKEY_OPACITY, f);
+        p.AddP70double("Opacity", f);
+        if (phong) {
+            // specular color is multiplied by shininess_strength
+            c.r = 0.2f; c.g = 0.2f; c.b = 0.2f;
+            m->Get(AI_MATKEY_COLOR_SPECULAR, c);
+            f = 1.0f;
+            m->Get(AI_MATKEY_SHININESS_STRENGTH, f);
+            p.AddP70vector("Specular", f*c.r, f*c.g, f*c.b);
+            f = 20.0f;
+            m->Get(AI_MATKEY_SHININESS, f);
+            p.AddP70double("Shininess", f);
+            // Legacy "Reflectivity" is F*F*((R+G+B)/3),
+            // where F is the proportion of light reflected (AKA reflectivity),
+            // and RGB is the reflective colour of the material.
+            // No idea why, but we might as well set it the same way.
+            f = 0.0f;
+            m->Get(AI_MATKEY_REFLECTIVITY, f);
+            c.r = 1.0f, c.g = 1.0f, c.b = 1.0f;
+            m->Get(AI_MATKEY_COLOR_REFLECTIVE, c);
+            p.AddP70double("Reflectivity", f*f*((c.r+c.g+c.b)/3.0));
+        }
+
+        n.AddChild(p);
+
+        n.Dump(outstream, binary, indent);
+    }
+
+    // we need to look up all the images we're using,
+    // so we can generate uids, and eliminate duplicates.
+    std::map<std::string, int64_t> uid_by_image;
+    for (size_t i = 0; i < mScene->mNumMaterials; ++i) {
+        aiString texpath;
+        aiMaterial* mat = mScene->mMaterials[i];
+        for (
+            size_t tt = aiTextureType_DIFFUSE;
+            tt < aiTextureType_UNKNOWN;
+            ++tt
+        ){
+            const aiTextureType textype = static_cast<aiTextureType>(tt);
+            const size_t texcount = mat->GetTextureCount(textype);
+            for (size_t j = 0; j < texcount; ++j) {
+                mat->GetTexture(textype, (unsigned int)j, &texpath);
+                const std::string texstring = texpath.C_Str();
+                auto elem = uid_by_image.find(texstring);
+                if (elem == uid_by_image.end()) {
+                    uid_by_image[texstring] = generate_uid();
+                }
+            }
+        }
+    }
+
+    // FbxVideo - stores images used by textures.
+    for (const auto &it : uid_by_image) {
+        if (it.first.compare(0, 1, "*") == 0) {
+            // TODO: embedded textures
+            continue;
+        }
+        FBX::Node n("Video");
+        const int64_t& uid = it.second;
+        const std::string name = ""; // TODO: ... name???
+        n.AddProperties(uid, name + FBX::SEPARATOR + "Video", "Clip");
+        n.AddChild("Type", "Clip");
+        FBX::Node p("Properties70");
+        // TODO: get full path... relative path... etc... ugh...
+        // for now just use the same path for everything,
+        // and hopefully one of them will work out.
+        const std::string& path = it.first;
+        p.AddP70("Path", "KString", "XRefUrl", "", path);
+        n.AddChild(p);
+        n.AddChild("UseMipMap", int32_t(0));
+        n.AddChild("Filename", path);
+        n.AddChild("RelativeFilename", path);
+        n.Dump(outstream, binary, indent);
+    }
+
+    // Textures
+    // referenced by material_index/texture_type pairs.
+    std::map<std::pair<size_t,size_t>,int64_t> texture_uids;
+    const std::map<aiTextureType,std::string> prop_name_by_tt = {
+        {aiTextureType_DIFFUSE, "DiffuseColor"},
+        {aiTextureType_SPECULAR, "SpecularColor"},
+        {aiTextureType_AMBIENT, "AmbientColor"},
+        {aiTextureType_EMISSIVE, "EmissiveColor"},
+        {aiTextureType_HEIGHT, "Bump"},
+        {aiTextureType_NORMALS, "NormalMap"},
+        {aiTextureType_SHININESS, "ShininessExponent"},
+        {aiTextureType_OPACITY, "TransparentColor"},
+        {aiTextureType_DISPLACEMENT, "DisplacementColor"},
+        //{aiTextureType_LIGHTMAP, "???"},
+        {aiTextureType_REFLECTION, "ReflectionColor"}
+        //{aiTextureType_UNKNOWN, ""}
+    };
+    for (size_t i = 0; i < mScene->mNumMaterials; ++i) {
+        // textures are attached to materials
+        aiMaterial* mat = mScene->mMaterials[i];
+        int64_t material_uid = material_uids[i];
+
+        for (
+            size_t j = aiTextureType_DIFFUSE;
+            j < aiTextureType_UNKNOWN;
+            ++j
+        ) {
+            const aiTextureType tt = static_cast<aiTextureType>(j);
+            size_t n = mat->GetTextureCount(tt);
+
+            if (n < 1) { // no texture of this type
+                continue;
+            }
+
+            if (n > 1) {
+                // TODO: multilayer textures
+                std::stringstream err;
+                err << "Multilayer textures not supported (for now),";
+                err << " skipping texture type " << j;
+                err << " of material " << i;
+                ASSIMP_LOG_WARN(err.str());
+            }
+
+            // get image path for this (single-image) texture
+            aiString tpath;
+            if (mat->GetTexture(tt, 0, &tpath) != aiReturn_SUCCESS) {
+                std::stringstream err;
+                err << "Failed to get texture 0 for texture of type " << tt;
+                err << " on material " << i;
+                err << ", however GetTextureCount returned 1.";
+                throw DeadlyExportError(err.str());
+            }
+            const std::string texture_path(tpath.C_Str());
+
+            // get connected image uid
+            auto elem = uid_by_image.find(texture_path);
+            if (elem == uid_by_image.end()) {
+                // this should never happen
+                std::stringstream err;
+                err << "Failed to find video element for texture with path";
+                err << " \"" << texture_path << "\"";
+                err << ", type " << j << ", material " << i;
+                throw DeadlyExportError(err.str());
+            }
+            const int64_t image_uid = elem->second;
+
+            // get the name of the material property to connect to
+            auto elem2 = prop_name_by_tt.find(tt);
+            if (elem2 == prop_name_by_tt.end()) {
+                // don't know how to handle this type of texture,
+                // so skip it.
+                std::stringstream err;
+                err << "Not sure how to handle texture of type " << j;
+                err << " on material " << i;
+                err << ", skipping...";
+                ASSIMP_LOG_WARN(err.str());
+                continue;
+            }
+            const std::string& prop_name = elem2->second;
+
+            // generate a uid for this texture
+            const int64_t texture_uid = generate_uid();
+
+            // link the texture to the material
+            connections.emplace_back(
+                "C", "OP", texture_uid, material_uid, prop_name
+            );
+
+            // link the image data to the texture
+            connections.emplace_back("C", "OO", image_uid, texture_uid);
+
+            // now write the actual texture node
+            FBX::Node tnode("Texture");
+            // TODO: some way to determine texture name?
+            const std::string texture_name = "" + FBX::SEPARATOR + "Texture";
+            tnode.AddProperties(texture_uid, texture_name, "");
+            // there really doesn't seem to be a better type than this:
+            tnode.AddChild("Type", "TextureVideoClip");
+            tnode.AddChild("Version", int32_t(202));
+            tnode.AddChild("TextureName", texture_name);
+            FBX::Node p("Properties70");
+            p.AddP70enum("CurrentTextureBlendMode", 0); // TODO: verify
+            //p.AddP70string("UVSet", ""); // TODO: how should this work?
+            p.AddP70bool("UseMaterial", 1);
+            tnode.AddChild(p);
+            // can't easily detrmine which texture path will be correct,
+            // so just store what we have in every field.
+            // these being incorrect is a common problem with FBX anyway.
+            tnode.AddChild("FileName", texture_path);
+            tnode.AddChild("RelativeFilename", texture_path);
+            tnode.AddChild("ModelUVTranslation", double(0.0), double(0.0));
+            tnode.AddChild("ModelUVScaling", double(1.0), double(1.0));
+            tnode.AddChild("Texture_Alpha_Source", "None");
+            tnode.AddChild(
+                "Cropping", int32_t(0), int32_t(0), int32_t(0), int32_t(0)
+            );
+            tnode.Dump(outstream, binary, indent);
+        }
+    }
+
+    // bones.
+    //
+    // output structure:
+    // subset of node hierarchy that are "skeleton",
+    // i.e. do not have meshes but only bones.
+    // but.. i'm not sure how anyone could guarantee that...
+    //
+    // input...
+    // well, for each mesh it has "bones",
+    // and the bone names correspond to nodes.
+    // of course we also need the parent nodes,
+    // as they give some of the transform........
+    //
+    // well. we can assume a sane input, i suppose.
+    //
+    // so input is the bone node hierarchy,
+    // with an extra thing for the transformation of the MESH in BONE space.
+    //
+    // output is a set of bone nodes,
+    // a "bindpose" which indicates the default local transform of all bones,
+    // and a set of "deformers".
+    // each deformer is parented to a mesh geometry,
+    // and has one or more "subdeformer"s as children.
+    // each subdeformer has one bone node as a child,
+    // and represents the influence of that bone on the grandparent mesh.
+    // the subdeformer has a list of indices, and weights,
+    // with indices specifying vertex indices,
+    // and weights specifying the corresponding influence of this bone.
+    // it also has Transform and TransformLink elements,
+    // specifying the transform of the MESH in BONE space,
+    // and the transformation of the BONE in WORLD space,
+    // likely in the bindpose.
+    //
+    // the input bone structure is different but similar,
+    // storing the number of weights for this bone,
+    // and an array of (vertex index, weight) pairs.
+    //
+    // one sticky point is that the number of vertices may not match,
+    // because assimp splits vertices by normal, uv, etc.
+
+    // first we should mark the skeleton for each mesh.
+    // the skeleton must include not only the aiBones,
+    // but also all their parent nodes.
+    // anything that affects the position of any bone node must be included.
+    std::vector<std::set<const aiNode*>> skeleton_by_mesh(mScene->mNumMeshes);
+    // at the same time we can build a list of all the skeleton nodes,
+    // which will be used later to mark them as type "limbNode".
+    std::unordered_set<const aiNode*> limbnodes;
+    // and a map of nodes by bone name, as finding them is annoying.
+    std::map<std::string,aiNode*> node_by_bone;
+    for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
+        const aiMesh* m = mScene->mMeshes[mi];
+        std::set<const aiNode*> skeleton;
+        for (size_t bi =0; bi < m->mNumBones; ++bi) {
+            const aiBone* b = m->mBones[bi];
+            const std::string name(b->mName.C_Str());
+            auto elem = node_by_bone.find(name);
+            aiNode* n;
+            if (elem != node_by_bone.end()) {
+                n = elem->second;
+            } else {
+                n = mScene->mRootNode->FindNode(b->mName);
+                if (!n) {
+                    // this should never happen
+                    std::stringstream err;
+                    err << "Failed to find node for bone: \"" << name << "\"";
+                    throw DeadlyExportError(err.str());
+                }
+                node_by_bone[name] = n;
+                limbnodes.insert(n);
+            }
+            skeleton.insert(n);
+            // mark all parent nodes as skeleton as well,
+            // up until we find the root node,
+            // or else the node containing the mesh,
+            // or else the parent of a node containig the mesh.
+            for (
+                const aiNode* parent = n->mParent;
+                parent && parent != mScene->mRootNode;
+                parent = parent->mParent
+            ) {
+                // if we've already done this node we can skip it all
+                if (skeleton.count(parent)) {
+                    break;
+                }
+                // ignore fbx transform nodes as these will be collapsed later
+                // TODO: cache this by aiNode*
+                const std::string node_name(parent->mName.C_Str());
+                if (node_name.find(MAGIC_NODE_TAG) != std::string::npos) {
+                    continue;
+                }
+                // otherwise check if this is the root of the skeleton
+                bool end = false;
+                // is the mesh part of this node?
+                for (size_t i = 0; i < parent->mNumMeshes; ++i) {
+                    if (parent->mMeshes[i] == mi) {
+                        end = true;
+                        break;
+                    }
+                }
+                // is the mesh in one of the children of this node?
+                for (size_t j = 0; j < parent->mNumChildren; ++j) {
+                    aiNode* child = parent->mChildren[j];
+                    for (size_t i = 0; i < child->mNumMeshes; ++i) {
+                        if (child->mMeshes[i] == mi) {
+                            end = true;
+                            break;
+                        }
+                    }
+                    if (end) { break; }
+                }
+                limbnodes.insert(parent);
+                skeleton.insert(parent);
+                // if it was the skeleton root we can finish here
+                if (end) { break; }
+            }
+        }
+        skeleton_by_mesh[mi] = skeleton;
+    }
+
+    // we'll need the uids for the bone nodes, so generate them now
+    for (size_t i = 0; i < mScene->mNumMeshes; ++i) {
+        auto &s = skeleton_by_mesh[i];
+        for (const aiNode* n : s) {
+            auto elem = node_uids.find(n);
+            if (elem == node_uids.end()) {
+                node_uids[n] = generate_uid();
+            }
+        }
+    }
+
+    // now, for each aiMesh, we need to export a deformer,
+    // and for each aiBone a subdeformer,
+    // which should have all the skinning info.
+    // these will need to be connected properly to the mesh,
+    // and we can do that all now.
+    for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
+        const aiMesh* m = mScene->mMeshes[mi];
+        if (!m->HasBones()) {
+            continue;
+        }
+        // make a deformer for this mesh
+        int64_t deformer_uid = generate_uid();
+        FBX::Node dnode("Deformer");
+        dnode.AddProperties(deformer_uid, FBX::SEPARATOR + "Deformer", "Skin");
+        dnode.AddChild("Version", int32_t(101));
+        // "acuracy"... this is not a typo....
+        dnode.AddChild("Link_DeformAcuracy", double(50));
+        dnode.AddChild("SkinningType", "Linear"); // TODO: other modes?
+        dnode.Dump(outstream, binary, indent);
+
+        // connect it
+        connections.emplace_back("C", "OO", deformer_uid, mesh_uids[mi]);
+
+        // we will be indexing by vertex...
+        // but there might be a different number of "vertices"
+        // between assimp and our output FBX.
+        // this code is cut-and-pasted from the geometry section above...
+        // ideally this should not be so.
+        // ---
+        // index of original vertex in vertex data vector
+        std::vector<int32_t> vertex_indices;
+        // map of vertex value to its index in the data vector
+        std::map<aiVector3D,size_t> index_by_vertex_value;
+        int32_t index = 0;
+        for (size_t vi = 0; vi < m->mNumVertices; ++vi) {
+            aiVector3D vtx = m->mVertices[vi];
+            auto elem = index_by_vertex_value.find(vtx);
+            if (elem == index_by_vertex_value.end()) {
+                vertex_indices.push_back(index);
+                index_by_vertex_value[vtx] = index;
+                ++index;
+            } else {
+                vertex_indices.push_back(int32_t(elem->second));
+            }
+        }
+
+        // TODO, FIXME: this won't work if anything is not in the bind pose.
+        // for now if such a situation is detected, we throw an exception.
+        std::set<const aiBone*> not_in_bind_pose;
+        std::set<const aiNode*> no_offset_matrix;
+
+        // first get this mesh's position in world space,
+        // as we'll need it for each subdeformer.
+        //
+        // ...of course taking the position of the MESH doesn't make sense,
+        // as it can be instanced to many nodes.
+        // All we can do is assume no instancing,
+        // and take the first node we find that contains the mesh.
+        aiNode* mesh_node = get_node_for_mesh((unsigned int)mi, mScene->mRootNode);
+        aiMatrix4x4 mesh_xform = get_world_transform(mesh_node, mScene);
+
+        // now make a subdeformer for each bone in the skeleton
+        const std::set<const aiNode*> &skeleton = skeleton_by_mesh[mi];
+        for (const aiNode* bone_node : skeleton) {
+            // if there's a bone for this node, find it
+            const aiBone* b = nullptr;
+            for (size_t bi = 0; bi < m->mNumBones; ++bi) {
+                // TODO: this probably should index by something else
+                const std::string name(m->mBones[bi]->mName.C_Str());
+                if (node_by_bone[name] == bone_node) {
+                    b = m->mBones[bi];
+                    break;
+                }
+            }
+            if (!b) {
+                no_offset_matrix.insert(bone_node);
+            }
+
+            // start the subdeformer node
+            const int64_t subdeformer_uid = generate_uid();
+            FBX::Node sdnode("Deformer");
+            sdnode.AddProperties(
+                subdeformer_uid, FBX::SEPARATOR + "SubDeformer", "Cluster"
+            );
+            sdnode.AddChild("Version", int32_t(100));
+            sdnode.AddChild("UserData", "", "");
+
+            // add indices and weights, if any
+            if (b) {
+                std::vector<int32_t> subdef_indices;
+                std::vector<double> subdef_weights;
+                int32_t last_index = -1;
+                for (size_t wi = 0; wi < b->mNumWeights; ++wi) {
+                    int32_t vi = vertex_indices[b->mWeights[wi].mVertexId];
+                    if (vi == last_index) {
+                        // only for vertices we exported to fbx
+                        // TODO, FIXME: this assumes identically-located vertices
+                        // will always deform in the same way.
+                        // as assimp doesn't store a separate list of "positions",
+                        // there's not much that can be done about this
+                        // other than assuming that identical position means
+                        // identical vertex.
+                        continue;
+                    }
+                    subdef_indices.push_back(vi);
+                    subdef_weights.push_back(b->mWeights[wi].mWeight);
+                    last_index = vi;
+                }
+                // yes, "indexes"
+                sdnode.AddChild("Indexes", subdef_indices);
+                sdnode.AddChild("Weights", subdef_weights);
+            }
+
+            // transform is the transform of the mesh, but in bone space.
+            // if the skeleton is in the bind pose,
+            // we can take the inverse of the world-space bone transform
+            // and multiply by the world-space transform of the mesh.
+            aiMatrix4x4 bone_xform = get_world_transform(bone_node, mScene);
+            aiMatrix4x4 inverse_bone_xform = bone_xform;
+            inverse_bone_xform.Inverse();
+            aiMatrix4x4 tr = inverse_bone_xform * mesh_xform;
+
+            // this should be the same as the bone's mOffsetMatrix.
+            // if it's not the same, the skeleton isn't in the bind pose.
+            const float epsilon = 1e-4f; // some error is to be expected
+            bool bone_xform_okay = true;
+            if (b && ! tr.Equal(b->mOffsetMatrix, epsilon)) {
+                not_in_bind_pose.insert(b);
+                bone_xform_okay = false;
+            }
+
+            // if we have a bone we should use the mOffsetMatrix,
+            // otherwise try to just use the calculated transform.
+            if (b) {
+                sdnode.AddChild("Transform", b->mOffsetMatrix);
+            } else {
+                sdnode.AddChild("Transform", tr);
+            }
+            // note: it doesn't matter if we mix these,
+            // because if they disagree we'll throw an exception later.
+            // it could be that the skeleton is not in the bone pose
+            // but all bones are still defined,
+            // in which case this would use the mOffsetMatrix for everything
+            // and a correct skeleton would still be output.
+
+            // transformlink should be the position of the bone in world space.
+            // if the bone is in the bind pose (or nonexistent),
+            // we can just use the matrix we already calculated
+            if (bone_xform_okay) {
+                sdnode.AddChild("TransformLink", bone_xform);
+            // otherwise we can only work it out using the mesh position.
+            } else {
+                aiMatrix4x4 trl = b->mOffsetMatrix;
+                trl.Inverse();
+                trl *= mesh_xform;
+                sdnode.AddChild("TransformLink", trl);
+            }
+            // note: this means we ALWAYS rely on the mesh node transform
+            // being unchanged from the time the skeleton was bound.
+            // there's not really any way around this at the moment.
+
+            // done
+            sdnode.Dump(outstream, binary, indent);
+
+            // lastly, connect to the parent deformer
+            connections.emplace_back(
+                "C", "OO", subdeformer_uid, deformer_uid
+            );
+
+            // we also need to connect the limb node to the subdeformer.
+            connections.emplace_back(
+                "C", "OO", node_uids[bone_node], subdeformer_uid
+            );
+        }
+
+        // if we cannot create a valid FBX file, simply die.
+        // this will both prevent unnecessary bug reports,
+        // and tell the user what they can do to fix the situation
+        // (i.e. export their model in the bind pose).
+        if (no_offset_matrix.size() && not_in_bind_pose.size()) {
+            std::stringstream err;
+            err << "Not enough information to construct bind pose";
+            err << " for mesh " << mi << "!";
+            err << " Transform matrix for bone \"";
+            err << (*not_in_bind_pose.begin())->mName.C_Str() << "\"";
+            if (not_in_bind_pose.size() > 1) {
+                err << " (and " << not_in_bind_pose.size() - 1 << " more)";
+            }
+            err << " does not match mOffsetMatrix,";
+            err << " and node \"";
+            err << (*no_offset_matrix.begin())->mName.C_Str() << "\"";
+            if (no_offset_matrix.size() > 1) {
+                err << " (and " << no_offset_matrix.size() - 1 << " more)";
+            }
+            err << " has no offset matrix to rely on.";
+            err << " Please ensure bones are in the bind pose to export.";
+            throw DeadlyExportError(err.str());
+        }
+
+    }
+
+    // BindPose
+    //
+    // This is a legacy system, which should be unnecessary.
+    //
+    // Somehow including it slows file loading by the official FBX SDK,
+    // and as it can reconstruct it from the deformers anyway,
+    // this is not currently included.
+    //
+    // The code is kept here in case it's useful in the future,
+    // but it's pretty much a hack anyway,
+    // as assimp doesn't store bindpose information for full skeletons.
+    //
+    /*for (size_t mi = 0; mi < mScene->mNumMeshes; ++mi) {
+        aiMesh* mesh = mScene->mMeshes[mi];
+        if (! mesh->HasBones()) { continue; }
+        int64_t bindpose_uid = generate_uid();
+        FBX::Node bpnode("Pose");
+        bpnode.AddProperty(bindpose_uid);
+        // note: this uid is never linked or connected to anything.
+        bpnode.AddProperty(FBX::SEPARATOR + "Pose"); // blank name
+        bpnode.AddProperty("BindPose");
+
+        bpnode.AddChild("Type", "BindPose");
+        bpnode.AddChild("Version", int32_t(100));
+
+        aiNode* mesh_node = get_node_for_mesh(mi, mScene->mRootNode);
+
+        // next get the whole skeleton for this mesh.
+        // we need it all to define the bindpose section.
+        // the FBX SDK will complain if it's missing,
+        // and also if parents of used bones don't have a subdeformer.
+        // order shouldn't matter.
+        std::set<aiNode*> skeleton;
+        for (size_t bi = 0; bi < mesh->mNumBones; ++bi) {
+            // bone node should have already been indexed
+            const aiBone* b = mesh->mBones[bi];
+            const std::string bone_name(b->mName.C_Str());
+            aiNode* parent = node_by_bone[bone_name];
+            // insert all nodes down to the root or mesh node
+            while (
+                parent
+                && parent != mScene->mRootNode
+                && parent != mesh_node
+            ) {
+                skeleton.insert(parent);
+                parent = parent->mParent;
+            }
+        }
+
+        // number of pose nodes. includes one for the mesh itself.
+        bpnode.AddChild("NbPoseNodes", int32_t(1 + skeleton.size()));
+
+        // the first pose node is always the mesh itself
+        FBX::Node pose("PoseNode");
+        pose.AddChild("Node", mesh_uids[mi]);
+        aiMatrix4x4 mesh_node_xform = get_world_transform(mesh_node, mScene);
+        pose.AddChild("Matrix", mesh_node_xform);
+        bpnode.AddChild(pose);
+
+        for (aiNode* bonenode : skeleton) {
+            // does this node have a uid yet?
+            int64_t node_uid;
+            auto node_uid_iter = node_uids.find(bonenode);
+            if (node_uid_iter != node_uids.end()) {
+                node_uid = node_uid_iter->second;
+            } else {
+                node_uid = generate_uid();
+                node_uids[bonenode] = node_uid;
+            }
+
+            // make a pose thingy
+            pose = FBX::Node("PoseNode");
+            pose.AddChild("Node", node_uid);
+            aiMatrix4x4 node_xform = get_world_transform(bonenode, mScene);
+            pose.AddChild("Matrix", node_xform);
+            bpnode.AddChild(pose);
+        }
+
+        // now write it
+        bpnode.Dump(outstream, binary, indent);
+    }*/
+
+    // TODO: cameras, lights
+
+    // write nodes (i.e. model hierarchy)
+    // start at root node
+    WriteModelNodes(
+        outstream, mScene->mRootNode, 0, limbnodes
+    );
+
+    // animations
+    //
+    // in FBX there are:
+    // * AnimationStack - corresponds to an aiAnimation
+    // * AnimationLayer - a combinable animation component
+    // * AnimationCurveNode - links the property to be animated
+    // * AnimationCurve - defines animation data for a single property value
+    //
+    // the CurveNode also provides the default value for a property,
+    // such as the X, Y, Z coordinates for animatable translation.
+    //
+    // the Curve only specifies values for one component of the property,
+    // so there will be a separate AnimationCurve for X, Y, and Z.
+    //
+    // Assimp has:
+    // * aiAnimation - basically corresponds to an AnimationStack
+    // * aiNodeAnim - defines all animation for one aiNode
+    // * aiVectorKey/aiQuatKey - define the keyframe data for T/R/S
+    //
+    // assimp has no equivalent for AnimationLayer,
+    // and these are flattened on FBX import.
+    // we can assume there will be one per AnimationStack.
+    //
+    // the aiNodeAnim contains all animation data for a single aiNode,
+    // which will correspond to three AnimationCurveNode's:
+    // one each for translation, rotation and scale.
+    // The data for each of these will be put in 9 AnimationCurve's,
+    // T.X, T.Y, T.Z, R.X, R.Y, R.Z, etc.
+
+    // AnimationStack / aiAnimation
+    std::vector<int64_t> animation_stack_uids(mScene->mNumAnimations);
+    for (size_t ai = 0; ai < mScene->mNumAnimations; ++ai) {
+        int64_t animstack_uid = generate_uid();
+        animation_stack_uids[ai] = animstack_uid;
+        const aiAnimation* anim = mScene->mAnimations[ai];
+
+        FBX::Node asnode("AnimationStack");
+        std::string name = anim->mName.C_Str() + FBX::SEPARATOR + "AnimStack";
+        asnode.AddProperties(animstack_uid, name, "");
+        FBX::Node p("Properties70");
+        p.AddP70time("LocalStart", 0); // assimp doesn't store this
+        p.AddP70time("LocalStop", to_ktime(anim->mDuration, anim));
+        p.AddP70time("ReferenceStart", 0);
+        p.AddP70time("ReferenceStop", to_ktime(anim->mDuration, anim));
+        asnode.AddChild(p);
+
+        // this node absurdly always pretends it has children
+        // (in this case it does, but just in case...)
+        asnode.force_has_children = true;
+        asnode.Dump(outstream, binary, indent);
+
+        // note: animation stacks are not connected to anything
+    }
+
+    // AnimationLayer - one per aiAnimation
+    std::vector<int64_t> animation_layer_uids(mScene->mNumAnimations);
+    for (size_t ai = 0; ai < mScene->mNumAnimations; ++ai) {
+        int64_t animlayer_uid = generate_uid();
+        animation_layer_uids[ai] = animlayer_uid;
+        FBX::Node alnode("AnimationLayer");
+        alnode.AddProperties(animlayer_uid, FBX::SEPARATOR + "AnimLayer", "");
+
+        // this node absurdly always pretends it has children
+        alnode.force_has_children = true;
+        alnode.Dump(outstream, binary, indent);
+
+        // connect to the relevant animstack
+        connections.emplace_back(
+            "C", "OO", animlayer_uid, animation_stack_uids[ai]
+        );
+    }
+
+    // AnimCurveNode - three per aiNodeAnim
+    std::vector<std::vector<std::array<int64_t,3>>> curve_node_uids;
+    for (size_t ai = 0; ai < mScene->mNumAnimations; ++ai) {
+        const aiAnimation* anim = mScene->mAnimations[ai];
+        const int64_t layer_uid = animation_layer_uids[ai];
+        std::vector<std::array<int64_t,3>> nodeanim_uids;
+        for (size_t nai = 0; nai < anim->mNumChannels; ++nai) {
+            const aiNodeAnim* na = anim->mChannels[nai];
+            // get the corresponding aiNode
+            const aiNode* node = mScene->mRootNode->FindNode(na->mNodeName);
+            // and its transform
+            const aiMatrix4x4 node_xfm = get_world_transform(node, mScene);
+            aiVector3D T, R, S;
+            node_xfm.Decompose(S, R, T);
+
+            // AnimationCurveNode uids
+            std::array<int64_t,3> ids;
+            ids[0] = generate_uid(); // T
+            ids[1] = generate_uid(); // R
+            ids[2] = generate_uid(); // S
+
+            // translation
+            WriteAnimationCurveNode(outstream,
+                ids[0], "T", T, "Lcl Translation",
+                layer_uid, node_uids[node]
+            );
+
+            // rotation
+            WriteAnimationCurveNode(outstream,
+                ids[1], "R", R, "Lcl Rotation",
+                layer_uid, node_uids[node]
+            );
+
+            // scale
+            WriteAnimationCurveNode(outstream,
+                ids[2], "S", S, "Lcl Scale",
+                layer_uid, node_uids[node]
+            );
+
+            // store the uids for later use
+            nodeanim_uids.push_back(ids);
+        }
+        curve_node_uids.push_back(nodeanim_uids);
+    }
+
+    // AnimCurve - defines actual keyframe data.
+    // there's a separate curve for every component of every vector,
+    // for example a transform curvenode will have separate X/Y/Z AnimCurve's
+    for (size_t ai = 0; ai < mScene->mNumAnimations; ++ai) {
+        const aiAnimation* anim = mScene->mAnimations[ai];
+        for (size_t nai = 0; nai < anim->mNumChannels; ++nai) {
+            const aiNodeAnim* na = anim->mChannels[nai];
+            // get the corresponding aiNode
+            const aiNode* node = mScene->mRootNode->FindNode(na->mNodeName);
+            // and its transform
+            const aiMatrix4x4 node_xfm = get_world_transform(node, mScene);
+            aiVector3D T, R, S;
+            node_xfm.Decompose(S, R, T);
+            const std::array<int64_t,3>& ids = curve_node_uids[ai][nai];
+
+            std::vector<int64_t> times;
+            std::vector<float> xval, yval, zval;
+
+            // position/translation
+            for (size_t ki = 0; ki < na->mNumPositionKeys; ++ki) {
+                const aiVectorKey& k = na->mPositionKeys[ki];
+                times.push_back(to_ktime(k.mTime));
+                xval.push_back(k.mValue.x);
+                yval.push_back(k.mValue.y);
+                zval.push_back(k.mValue.z);
+            }
+            // one curve each for X, Y, Z
+            WriteAnimationCurve(outstream, T.x, times, xval, ids[0], "d|X");
+            WriteAnimationCurve(outstream, T.y, times, yval, ids[0], "d|Y");
+            WriteAnimationCurve(outstream, T.z, times, zval, ids[0], "d|Z");
+
+            // rotation
+            times.clear(); xval.clear(); yval.clear(); zval.clear();
+            for (size_t ki = 0; ki < na->mNumRotationKeys; ++ki) {
+                const aiQuatKey& k = na->mRotationKeys[ki];
+                times.push_back(to_ktime(k.mTime));
+                // TODO: aiQuaternion method to convert to Euler...
+                aiMatrix4x4 m(k.mValue.GetMatrix());
+                aiVector3D qs, qr, qt;
+                m.Decompose(qs, qr, qt);
+                qr *= DEG;
+                xval.push_back(qr.x);
+                yval.push_back(qr.y);
+                zval.push_back(qr.z);
+            }
+            WriteAnimationCurve(outstream, R.x, times, xval, ids[1], "d|X");
+            WriteAnimationCurve(outstream, R.y, times, yval, ids[1], "d|Y");
+            WriteAnimationCurve(outstream, R.z, times, zval, ids[1], "d|Z");
+
+            // scaling/scale
+            times.clear(); xval.clear(); yval.clear(); zval.clear();
+            for (size_t ki = 0; ki < na->mNumScalingKeys; ++ki) {
+                const aiVectorKey& k = na->mScalingKeys[ki];
+                times.push_back(to_ktime(k.mTime));
+                xval.push_back(k.mValue.x);
+                yval.push_back(k.mValue.y);
+                zval.push_back(k.mValue.z);
+            }
+            WriteAnimationCurve(outstream, S.x, times, xval, ids[2], "d|X");
+            WriteAnimationCurve(outstream, S.y, times, yval, ids[2], "d|Y");
+            WriteAnimationCurve(outstream, S.z, times, zval, ids[2], "d|Z");
+        }
+    }
+
+    indent = 0;
+    object_node.End(outstream, binary, indent, true);
+}
+
+// convenience map of magic node name strings to FBX properties,
+// including the expected type of transform.
+const std::map<std::string,std::pair<std::string,char>> transform_types = {
+    {"Translation", {"Lcl Translation", 't'}},
+    {"RotationOffset", {"RotationOffset", 't'}},
+    {"RotationPivot", {"RotationPivot", 't'}},
+    {"PreRotation", {"PreRotation", 'r'}},
+    {"Rotation", {"Lcl Rotation", 'r'}},
+    {"PostRotation", {"PostRotation", 'r'}},
+    {"RotationPivotInverse", {"RotationPivotInverse", 'i'}},
+    {"ScalingOffset", {"ScalingOffset", 't'}},
+    {"ScalingPivot", {"ScalingPivot", 't'}},
+    {"Scaling", {"Lcl Scaling", 's'}},
+    {"ScalingPivotInverse", {"ScalingPivotInverse", 'i'}},
+    {"GeometricScaling", {"GeometricScaling", 's'}},
+    {"GeometricRotation", {"GeometricRotation", 'r'}},
+    {"GeometricTranslation", {"GeometricTranslation", 't'}},
+    {"GeometricTranslationInverse", {"GeometricTranslationInverse", 'i'}},
+    {"GeometricRotationInverse", {"GeometricRotationInverse", 'i'}},
+    {"GeometricScalingInverse", {"GeometricScalingInverse", 'i'}}
+};
+
+// write a single model node to the stream
+void FBXExporter::WriteModelNode(
+    StreamWriterLE& outstream,
+    bool binary,
+    const aiNode* node,
+    int64_t node_uid,
+    const std::string& type,
+    const std::vector<std::pair<std::string,aiVector3D>>& transform_chain,
+    TransformInheritance inherit_type
+){
+    const aiVector3D zero = {0, 0, 0};
+    const aiVector3D one = {1, 1, 1};
+    FBX::Node m("Model");
+    std::string name = node->mName.C_Str() + FBX::SEPARATOR + "Model";
+    m.AddProperties(node_uid, name, type);
+    m.AddChild("Version", int32_t(232));
+    FBX::Node p("Properties70");
+    p.AddP70bool("RotationActive", 1);
+    p.AddP70int("DefaultAttributeIndex", 0);
+    p.AddP70enum("InheritType", inherit_type);
+    if (transform_chain.empty()) {
+        // decompose 4x4 transform matrix into TRS
+        aiVector3D t, r, s;
+        node->mTransformation.Decompose(s, r, t);
+        if (t != zero) {
+            p.AddP70(
+                "Lcl Translation", "Lcl Translation", "", "A",
+                double(t.x), double(t.y), double(t.z)
+            );
+        }
+        if (r != zero) {
+            p.AddP70(
+                "Lcl Rotation", "Lcl Rotation", "", "A",
+                double(DEG*r.x), double(DEG*r.y), double(DEG*r.z)
+            );
+        }
+        if (s != one) {
+            p.AddP70(
+                "Lcl Scaling", "Lcl Scaling", "", "A",
+                double(s.x), double(s.y), double(s.z)
+            );
+        }
+    } else {
+        // apply the transformation chain.
+        // these transformation elements are created when importing FBX,
+        // which has a complex transformation hierarchy for each node.
+        // as such we can bake the hierarchy back into the node on export.
+        for (auto &item : transform_chain) {
+            auto elem = transform_types.find(item.first);
+            if (elem == transform_types.end()) {
+                // then this is a bug
+                std::stringstream err;
+                err << "unrecognized FBX transformation type: ";
+                err << item.first;
+                throw DeadlyExportError(err.str());
+            }
+            const std::string &name = elem->second.first;
+            const aiVector3D &v = item.second;
+            if (name.compare(0, 4, "Lcl ") == 0) {
+                // special handling for animatable properties
+                p.AddP70(
+                    name, name, "", "A",
+                    double(v.x), double(v.y), double(v.z)
+                );
+            } else {
+                p.AddP70vector(name, v.x, v.y, v.z);
+            }
+        }
+    }
+    m.AddChild(p);
+
+    // not sure what these are for,
+    // but they seem to be omnipresent
+    m.AddChild("Shading", Property(true));
+    m.AddChild("Culling", Property("CullingOff"));
+
+    m.Dump(outstream, binary, 1);
+}
+
+// wrapper for WriteModelNodes to create and pass a blank transform chain
+void FBXExporter::WriteModelNodes(
+    StreamWriterLE& s,
+    const aiNode* node,
+    int64_t parent_uid,
+    const std::unordered_set<const aiNode*>& limbnodes
+) {
+    std::vector<std::pair<std::string,aiVector3D>> chain;
+    WriteModelNodes(s, node, parent_uid, limbnodes, chain);
+}
+
+void FBXExporter::WriteModelNodes(
+    StreamWriterLE& outstream,
+    const aiNode* node,
+    int64_t parent_uid,
+    const std::unordered_set<const aiNode*>& limbnodes,
+    std::vector<std::pair<std::string,aiVector3D>>& transform_chain
+) {
+    // first collapse any expanded transformation chains created by FBX import.
+    std::string node_name(node->mName.C_Str());
+    if (node_name.find(MAGIC_NODE_TAG) != std::string::npos) {
+        auto pos = node_name.find(MAGIC_NODE_TAG) + MAGIC_NODE_TAG.size() + 1;
+        std::string type_name = node_name.substr(pos);
+        auto elem = transform_types.find(type_name);
+        if (elem == transform_types.end()) {
+            // then this is a bug and should be fixed
+            std::stringstream err;
+            err << "unrecognized FBX transformation node";
+            err << " of type " << type_name << " in node " << node_name;
+            throw DeadlyExportError(err.str());
+        }
+        aiVector3D t, r, s;
+        node->mTransformation.Decompose(s, r, t);
+        switch (elem->second.second) {
+        case 'i': // inverse
+            // we don't need to worry about the inverse matrices
+            break;
+        case 't': // translation
+            transform_chain.emplace_back(elem->first, t);
+            break;
+        case 'r': // rotation
+            r *= float(DEG);
+            transform_chain.emplace_back(elem->first, r);
+            break;
+        case 's': // scale
+            transform_chain.emplace_back(elem->first, s);
+            break;
+        default:
+            // this should never happen
+            std::stringstream err;
+            err << "unrecognized FBX transformation type code: ";
+            err << elem->second.second;
+            throw DeadlyExportError(err.str());
+        }
+        // now continue on to any child nodes
+        for (unsigned i = 0; i < node->mNumChildren; ++i) {
+            WriteModelNodes(
+                outstream,
+                node->mChildren[i],
+                parent_uid,
+                limbnodes,
+                transform_chain
+            );
+        }
+        return;
+    }
+
+    int64_t node_uid = 0;
+    // generate uid and connect to parent, if not the root node,
+    if (node != mScene->mRootNode) {
+        auto elem = node_uids.find(node);
+        if (elem != node_uids.end()) {
+            node_uid = elem->second;
+        } else {
+            node_uid = generate_uid();
+            node_uids[node] = node_uid;
+        }
+        connections.emplace_back("C", "OO", node_uid, parent_uid);
+    }
+
+    // what type of node is this?
+    if (node == mScene->mRootNode) {
+        // handled later
+    } else if (node->mNumMeshes == 1) {
+        // connect to child mesh, which should have been written previously
+        connections.emplace_back(
+            "C", "OO", mesh_uids[node->mMeshes[0]], node_uid
+        );
+        // also connect to the material for the child mesh
+        connections.emplace_back(
+            "C", "OO",
+            material_uids[mScene->mMeshes[node->mMeshes[0]]->mMaterialIndex],
+            node_uid
+        );
+        // write model node
+        WriteModelNode(
+            outstream, binary, node, node_uid, "Mesh", transform_chain
+        );
+    } else if (limbnodes.count(node)) {
+        WriteModelNode(
+            outstream, binary, node, node_uid, "LimbNode", transform_chain
+        );
+        // we also need to write a nodeattribute to mark it as a skeleton
+        int64_t node_attribute_uid = generate_uid();
+        FBX::Node na("NodeAttribute");
+        na.AddProperties(
+            node_attribute_uid, FBX::SEPARATOR + "NodeAttribute", "LimbNode"
+        );
+        na.AddChild("TypeFlags", Property("Skeleton"));
+        na.Dump(outstream, binary, 1);
+        // and connect them
+        connections.emplace_back("C", "OO", node_attribute_uid, node_uid);
+    } else {
+        // generate a null node so we can add children to it
+        WriteModelNode(
+            outstream, binary, node, node_uid, "Null", transform_chain
+        );
+    }
+
+    // if more than one child mesh, make nodes for each mesh
+    if (node->mNumMeshes > 1 || node == mScene->mRootNode) {
+        for (size_t i = 0; i < node->mNumMeshes; ++i) {
+            // make a new model node
+            int64_t new_node_uid = generate_uid();
+            // connect to parent node
+            connections.emplace_back("C", "OO", new_node_uid, node_uid);
+            // connect to child mesh, which should have been written previously
+            connections.emplace_back(
+                "C", "OO", mesh_uids[node->mMeshes[i]], new_node_uid
+            );
+            // also connect to the material for the child mesh
+            connections.emplace_back(
+                "C", "OO",
+                material_uids[
+                    mScene->mMeshes[node->mMeshes[i]]->mMaterialIndex
+                ],
+                new_node_uid
+            );
+            // write model node
+            FBX::Node m("Model");
+            // take name from mesh name, if it exists
+            std::string name = mScene->mMeshes[node->mMeshes[i]]->mName.C_Str();
+            name += FBX::SEPARATOR + "Model";
+            m.AddProperties(new_node_uid, name, "Mesh");
+            m.AddChild("Version", int32_t(232));
+            FBX::Node p("Properties70");
+            p.AddP70enum("InheritType", 1);
+            m.AddChild(p);
+            m.Dump(outstream, binary, 1);
+        }
+    }
+
+    // now recurse into children
+    for (size_t i = 0; i < node->mNumChildren; ++i) {
+        WriteModelNodes(
+            outstream, node->mChildren[i], node_uid, limbnodes
+        );
+    }
+}
+
+
+void FBXExporter::WriteAnimationCurveNode(
+    StreamWriterLE& outstream,
+    int64_t uid,
+    std::string name, // "T", "R", or "S"
+    aiVector3D default_value,
+    std::string property_name, // "Lcl Translation" etc
+    int64_t layer_uid,
+    int64_t node_uid
+) {
+    FBX::Node n("AnimationCurveNode");
+    n.AddProperties(uid, name + FBX::SEPARATOR + "AnimCurveNode", "");
+    FBX::Node p("Properties70");
+    p.AddP70numberA("d|X", default_value.x);
+    p.AddP70numberA("d|Y", default_value.y);
+    p.AddP70numberA("d|Z", default_value.z);
+    n.AddChild(p);
+    n.Dump(outstream, binary, 1);
+    // connect to layer
+    this->connections.emplace_back("C", "OO", uid, layer_uid);
+    // connect to bone
+    this->connections.emplace_back("C", "OP", uid, node_uid, property_name);
+}
+
+
+void FBXExporter::WriteAnimationCurve(
+    StreamWriterLE& outstream,
+    double default_value,
+    const std::vector<int64_t>& times,
+    const std::vector<float>& values,
+    int64_t curvenode_uid,
+    const std::string& property_link // "d|X", "d|Y", etc
+) {
+    FBX::Node n("AnimationCurve");
+    int64_t curve_uid = generate_uid();
+    n.AddProperties(curve_uid, FBX::SEPARATOR + "AnimCurve", "");
+    n.AddChild("Default", default_value);
+    n.AddChild("KeyVer", int32_t(4009));
+    n.AddChild("KeyTime", times);
+    n.AddChild("KeyValueFloat", values);
+    // TODO: keyattr flags and data (STUB for now)
+    n.AddChild("KeyAttrFlags", std::vector<int32_t>{0});
+    n.AddChild("KeyAttrDataFloat", std::vector<float>{0,0,0,0});
+    n.AddChild(
+        "KeyAttrRefCount",
+        std::vector<int32_t>{static_cast<int32_t>(times.size())}
+    );
+    n.Dump(outstream, binary, 1);
+    this->connections.emplace_back(
+        "C", "OP", curve_uid, curvenode_uid, property_link
+    );
+}
+
+
+void FBXExporter::WriteConnections ()
+{
+    // we should have completed the connection graph already,
+    // so basically just dump it here
+    if (!binary) {
+        WriteAsciiSectionHeader("Object connections");
+    }
+    // TODO: comments with names in the ascii version
+    FBX::Node conn("Connections");
+    StreamWriterLE outstream(outfile);
+    conn.Begin(outstream, binary, 0);
+    conn.BeginChildren(outstream, binary, 0);
+    for (auto &n : connections) {
+        n.Dump(outstream, binary, 1);
+    }
+    conn.End(outstream, binary, 0, !connections.empty());
+    connections.clear();
+}
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+#endif // ASSIMP_BUILD_NO_EXPORT
diff --git a/thirdparty/assimp/code/FBXExporter.h b/thirdparty/assimp/code/FBXExporter.h
new file mode 100644
index 0000000000..71fb55c57f
--- /dev/null
+++ b/thirdparty/assimp/code/FBXExporter.h
@@ -0,0 +1,178 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file FBXExporter.h
+* Declares the exporter class to write a scene to an fbx file
+*/
+#ifndef AI_FBXEXPORTER_H_INC
+#define AI_FBXEXPORTER_H_INC
+
+#ifndef ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#include "FBXExportNode.h" // FBX::Node
+#include "FBXCommon.h" // FBX::TransformInheritance
+
+#include <assimp/types.h>
+//#include <assimp/material.h>
+#include <assimp/StreamWriter.h> // StreamWriterLE
+#include <assimp/Exceptional.h> // DeadlyExportError
+
+#include <vector>
+#include <map>
+#include <unordered_set>
+#include <memory> // shared_ptr
+#include <sstream> // stringstream
+
+struct aiScene;
+struct aiNode;
+//struct aiMaterial;
+
+namespace Assimp
+{
+    class IOSystem;
+    class IOStream;
+    class ExportProperties;
+
+    // ---------------------------------------------------------------------
+    /** Helper class to export a given scene to an FBX file. */
+    // ---------------------------------------------------------------------
+    class FBXExporter
+    {
+    public:
+        /// Constructor for a specific scene to export
+        FBXExporter(const aiScene* pScene, const ExportProperties* pProperties);
+
+        // call one of these methods to export
+        void ExportBinary(const char* pFile, IOSystem* pIOSystem);
+        void ExportAscii(const char* pFile, IOSystem* pIOSystem);
+
+    private:
+        bool binary; // whether current export is in binary or ascii format
+        const aiScene* mScene; // the scene to export
+        const ExportProperties* mProperties; // currently unused
+        std::shared_ptr<IOStream> outfile; // file to write to
+
+        std::vector<FBX::Node> connections; // connection storage
+
+        std::vector<int64_t> mesh_uids;
+        std::vector<int64_t> material_uids;
+        std::map<const aiNode*,int64_t> node_uids;
+
+        // this crude unique-ID system is actually fine
+        int64_t last_uid = 999999;
+        int64_t generate_uid() { return ++last_uid; }
+
+        // binary files have a specific header and footer,
+        // in addition to the actual data
+        void WriteBinaryHeader();
+        void WriteBinaryFooter();
+
+        // ascii files have a comment at the top
+        void WriteAsciiHeader();
+
+        // WriteAllNodes does the actual export.
+        // It just calls all the Write<Section> methods below in order.
+        void WriteAllNodes();
+
+        // Methods to write individual sections.
+        // The order here matches the order inside an FBX file.
+        // Each method corresponds to a top-level FBX section,
+        // except WriteHeader which also includes some binary-only sections
+        // and WriteFooter which is binary data only.
+        void WriteHeaderExtension();
+        // WriteFileId(); // binary-only, included in WriteHeader
+        // WriteCreationTime(); // binary-only, included in WriteHeader
+        // WriteCreator(); // binary-only, included in WriteHeader
+        void WriteGlobalSettings();
+        void WriteDocuments();
+        void WriteReferences();
+        void WriteDefinitions();
+        void WriteObjects();
+        void WriteConnections();
+        // WriteTakes(); // deprecated since at least 2015 (fbx 7.4)
+
+        // helpers
+        void WriteAsciiSectionHeader(const std::string& title);
+        void WriteModelNodes(
+            Assimp::StreamWriterLE& s,
+            const aiNode* node,
+            int64_t parent_uid,
+            const std::unordered_set<const aiNode*>& limbnodes
+        );
+        void WriteModelNodes( // usually don't call this directly
+            StreamWriterLE& s,
+            const aiNode* node,
+            int64_t parent_uid,
+            const std::unordered_set<const aiNode*>& limbnodes,
+            std::vector<std::pair<std::string,aiVector3D>>& transform_chain
+        );
+        void WriteModelNode( // nor this
+            StreamWriterLE& s,
+            bool binary,
+            const aiNode* node,
+            int64_t node_uid,
+            const std::string& type,
+            const std::vector<std::pair<std::string,aiVector3D>>& xfm_chain,
+            FBX::TransformInheritance ti_type=FBX::TransformInheritance_RSrs
+        );
+        void WriteAnimationCurveNode(
+            StreamWriterLE& outstream,
+            int64_t uid,
+            std::string name, // "T", "R", or "S"
+            aiVector3D default_value,
+            std::string property_name, // "Lcl Translation" etc
+            int64_t animation_layer_uid,
+            int64_t node_uid
+        );
+        void WriteAnimationCurve(
+            StreamWriterLE& outstream,
+            double default_value,
+            const std::vector<int64_t>& times,
+            const std::vector<float>& values,
+            int64_t curvenode_id,
+            const std::string& property_link // "d|X", "d|Y", etc
+        );
+    };
+}
+
+#endif // ASSIMP_BUILD_NO_FBX_EXPORTER
+
+#endif // AI_FBXEXPORTER_H_INC
diff --git a/thirdparty/assimp/code/FBXImportSettings.h b/thirdparty/assimp/code/FBXImportSettings.h
new file mode 100644
index 0000000000..d5e1c20608
--- /dev/null
+++ b/thirdparty/assimp/code/FBXImportSettings.h
@@ -0,0 +1,153 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXImportSettings.h
+ *  @brief FBX importer runtime configuration
+ */
+#ifndef INCLUDED_AI_FBX_IMPORTSETTINGS_H
+#define INCLUDED_AI_FBX_IMPORTSETTINGS_H
+
+namespace Assimp {
+namespace FBX {
+
+/** FBX import settings, parts of which are publicly accessible via their corresponding AI_CONFIG constants */
+struct ImportSettings
+{
+    ImportSettings()
+        : strictMode(true)
+        , readAllLayers(true)
+        , readAllMaterials(false)
+        , readMaterials(true)
+        , readTextures(true)
+        , readCameras(true)
+        , readLights(true)
+        , readAnimations(true)
+        , readWeights(true)
+        , preservePivots(true)
+        , optimizeEmptyAnimationCurves(true)
+        , useLegacyEmbeddedTextureNaming(false)
+    {}
+
+
+    /** enable strict mode:
+     *   - only accept fbx 2012, 2013 files
+     *   - on the slightest error, give up.
+     *
+     *  Basically, strict mode means that the fbx file will actually
+     *  be validated. Strict mode is off by default. */
+    bool strictMode;
+
+    /** specifies whether all geometry layers are read and scanned for
+      * usable data channels. The FBX spec indicates that many readers
+      * will only read the first channel and that this is in some way
+      * the recommended way- in reality, however, it happens a lot that
+      * vertex data is spread among multiple layers. The default
+      * value for this option is true.*/
+    bool readAllLayers;
+
+    /** specifies whether all materials are read, or only those that
+     *  are referenced by at least one mesh. Reading all materials
+     *  may make FBX reading a lot slower since all objects
+     *  need to be processed .
+     *  This bit is ignored unless readMaterials=true*/
+    bool readAllMaterials;
+
+
+    /** import materials (true) or skip them and assign a default
+     *  material. The default value is true.*/
+    bool readMaterials;
+
+    /** import embedded textures? Default value is true.*/
+    bool readTextures;
+
+    /** import cameras? Default value is true.*/
+    bool readCameras;
+
+    /** import light sources? Default value is true.*/
+    bool readLights;
+
+    /** import animations (i.e. animation curves, the node
+     *  skeleton is always imported). Default value is true. */
+    bool readAnimations;
+
+    /** read bones (vertex weights and deform info).
+     *  Default value is true. */
+    bool readWeights;
+
+    /** preserve transformation pivots and offsets. Since these can
+     *  not directly be represented in assimp, additional dummy
+     *  nodes will be generated. Note that settings this to false
+     *  can make animation import a lot slower. The default value
+     *  is true.
+     *
+     *  The naming scheme for the generated nodes is:
+     *    <OriginalName>_$AssimpFbx$_<TransformName>
+     *
+     *  where <TransformName> is one of
+     *    RotationPivot
+     *    RotationOffset
+     *    PreRotation
+     *    PostRotation
+     *    ScalingPivot
+     *    ScalingOffset
+     *    Translation
+     *    Scaling
+     *    Rotation
+     **/
+    bool preservePivots;
+
+    /** do not import animation curves that specify a constant
+     *  values matching the corresponding node transformation.
+     *  The default value is true. */
+    bool optimizeEmptyAnimationCurves;
+
+    /** use legacy naming for embedded textures eg: (*0, *1, *2)
+    **/
+    bool useLegacyEmbeddedTextureNaming;
+};
+
+
+} // !FBX
+} // !Assimp
+
+#endif
+
diff --git a/thirdparty/assimp/code/FBXImporter.cpp b/thirdparty/assimp/code/FBXImporter.cpp
new file mode 100644
index 0000000000..2cc8bffc29
--- /dev/null
+++ b/thirdparty/assimp/code/FBXImporter.cpp
@@ -0,0 +1,197 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+r
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXImporter.cpp
+ *  @brief Implementation of the FBX importer.
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXImporter.h"
+
+#include "FBXTokenizer.h"
+#include "FBXParser.h"
+#include "FBXUtil.h"
+#include "FBXDocument.h"
+#include "FBXConverter.h"
+
+#include <assimp/StreamReader.h>
+#include <assimp/MemoryIOWrapper.h>
+#include <assimp/Importer.hpp>
+#include <assimp/importerdesc.h>
+
+namespace Assimp {
+
+template<>
+const char* LogFunctions<FBXImporter>::Prefix() {
+    static auto prefix = "FBX: ";
+    return prefix;
+}
+
+}
+
+using namespace Assimp;
+using namespace Assimp::Formatter;
+using namespace Assimp::FBX;
+
+namespace {
+
+static const aiImporterDesc desc = {
+    "Autodesk FBX Importer",
+    "",
+    "",
+    "",
+    aiImporterFlags_SupportTextFlavour,
+    0,
+    0,
+    0,
+    0,
+    "fbx"
+};
+}
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by #Importer
+FBXImporter::FBXImporter()
+{
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FBXImporter::~FBXImporter()
+{
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the class can handle the format of the given file.
+bool FBXImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+{
+    const std::string& extension = GetExtension(pFile);
+    if (extension == std::string( desc.mFileExtensions ) ) {
+        return true;
+    }
+
+    else if ((!extension.length() || checkSig) && pIOHandler)   {
+        // at least ASCII-FBX files usually have a 'FBX' somewhere in their head
+        const char* tokens[] = {"fbx"};
+        return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
+    }
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+// List all extensions handled by this loader
+const aiImporterDesc* FBXImporter::GetInfo () const
+{
+    return &desc;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup configuration properties for the loader
+void FBXImporter::SetupProperties(const Importer* pImp)
+{
+    settings.readAllLayers = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS, true);
+    settings.readAllMaterials = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_ALL_MATERIALS, false);
+    settings.readMaterials = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_MATERIALS, true);
+    settings.readTextures = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_TEXTURES, true);
+    settings.readCameras = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_CAMERAS, true);
+    settings.readLights = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_LIGHTS, true);
+    settings.readAnimations = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_ANIMATIONS, true);
+    settings.strictMode = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_STRICT_MODE, false);
+    settings.preservePivots = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS, true);
+    settings.optimizeEmptyAnimationCurves = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES, true);
+    settings.useLegacyEmbeddedTextureNaming = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING, false);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Imports the given file into the given scene structure.
+void FBXImporter::InternReadFile( const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler)
+{
+    std::unique_ptr<IOStream> stream(pIOHandler->Open(pFile,"rb"));
+    if (!stream) {
+        ThrowException("Could not open file for reading");
+    }
+
+    // read entire file into memory - no streaming for this, fbx
+    // files can grow large, but the assimp output data structure
+    // then becomes very large, too. Assimp doesn't support
+    // streaming for its output data structures so the net win with
+    // streaming input data would be very low.
+    std::vector<char> contents;
+    contents.resize(stream->FileSize()+1);
+    stream->Read( &*contents.begin(), 1, contents.size()-1 );
+    contents[ contents.size() - 1 ] = 0;
+    const char* const begin = &*contents.begin();
+
+    // broadphase tokenizing pass in which we identify the core
+    // syntax elements of FBX (brackets, commas, key:value mappings)
+    TokenList tokens;
+    try {
+
+        bool is_binary = false;
+        if (!strncmp(begin,"Kaydara FBX Binary",18)) {
+            is_binary = true;
+            TokenizeBinary(tokens,begin,static_cast<unsigned int>(contents.size()));
+        }
+        else {
+            Tokenize(tokens,begin);
+        }
+
+        // use this information to construct a very rudimentary
+        // parse-tree representing the FBX scope structure
+        Parser parser(tokens, is_binary);
+
+        // take the raw parse-tree and convert it to a FBX DOM
+        Document doc(parser,settings);
+
+        // convert the FBX DOM to aiScene
+        ConvertToAssimpScene(pScene,doc);
+
+        std::for_each(tokens.begin(),tokens.end(),Util::delete_fun<Token>());
+    }
+    catch(std::exception&) {
+        std::for_each(tokens.begin(),tokens.end(),Util::delete_fun<Token>());
+        throw;
+    }
+}
+
+#endif // !ASSIMP_BUILD_NO_FBX_IMPORTER
diff --git a/thirdparty/assimp/code/FBXImporter.h b/thirdparty/assimp/code/FBXImporter.h
new file mode 100644
index 0000000000..c365b2cddf
--- /dev/null
+++ b/thirdparty/assimp/code/FBXImporter.h
@@ -0,0 +1,100 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXImporter.h
+ *  @brief Declaration of the FBX main importer class
+ */
+#ifndef INCLUDED_AI_FBX_IMPORTER_H
+#define INCLUDED_AI_FBX_IMPORTER_H
+
+#include <assimp/BaseImporter.h>
+#include <assimp/LogAux.h>
+
+#include "FBXImportSettings.h"
+
+namespace Assimp    {
+
+// TinyFormatter.h
+namespace Formatter {
+    template <typename T,typename TR, typename A> class basic_formatter;
+    typedef class basic_formatter< char, std::char_traits<char>, std::allocator<char> > format;
+}
+
+// -------------------------------------------------------------------------------------------
+/** Load the Autodesk FBX file format.
+
+ See http://en.wikipedia.org/wiki/FBX
+*/
+// -------------------------------------------------------------------------------------------
+class FBXImporter : public BaseImporter, public LogFunctions<FBXImporter>
+{
+public:
+    FBXImporter();
+    virtual ~FBXImporter();
+
+    // --------------------
+    bool CanRead( const std::string& pFile,
+        IOSystem* pIOHandler,
+        bool checkSig
+    ) const;
+
+protected:
+
+    // --------------------
+    const aiImporterDesc* GetInfo () const;
+
+    // --------------------
+    void SetupProperties(const Importer* pImp);
+
+    // --------------------
+    void InternReadFile( const std::string& pFile,
+        aiScene* pScene,
+        IOSystem* pIOHandler
+    );
+
+private:
+    FBX::ImportSettings settings;
+}; // !class FBXImporter
+
+} // end of namespace Assimp
+#endif // !INCLUDED_AI_FBX_IMPORTER_H
+
diff --git a/thirdparty/assimp/code/FBXMaterial.cpp b/thirdparty/assimp/code/FBXMaterial.cpp
new file mode 100644
index 0000000000..f16f134404
--- /dev/null
+++ b/thirdparty/assimp/code/FBXMaterial.cpp
@@ -0,0 +1,381 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXMaterial.cpp
+ *  @brief Assimp::FBX::Material and Assimp::FBX::Texture implementation
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXParser.h"
+#include "FBXDocument.h"
+#include "FBXImporter.h"
+#include "FBXImportSettings.h"
+#include "FBXDocumentUtil.h"
+#include "FBXProperties.h"
+#include <assimp/ByteSwapper.h>
+
+#include <algorithm> // std::transform
+#include "FBXUtil.h"
+
+namespace Assimp {
+namespace FBX {
+
+    using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+Material::Material(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: Object(id,element,name)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const Element* const ShadingModel = sc["ShadingModel"];
+    const Element* const MultiLayer = sc["MultiLayer"];
+
+    if(MultiLayer) {
+        multilayer = !!ParseTokenAsInt(GetRequiredToken(*MultiLayer,0));
+    }
+
+    if(ShadingModel) {
+        shading = ParseTokenAsString(GetRequiredToken(*ShadingModel,0));
+    }
+    else {
+        DOMWarning("shading mode not specified, assuming phong",&element);
+        shading = "phong";
+    }
+
+    std::string templateName;
+
+    // lower-case shading because Blender (for example) writes "Phong"
+    std::transform(shading.begin(), shading.end(), shading.begin(), ::tolower);
+    if(shading == "phong") {
+        templateName = "Material.FbxSurfacePhong";
+    }
+    else if(shading == "lambert") {
+        templateName = "Material.FbxSurfaceLambert";
+    }
+    else {
+        DOMWarning("shading mode not recognized: " + shading,&element);
+    }
+
+    props = GetPropertyTable(doc,templateName,element,sc);
+
+    // resolve texture links
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
+    for(const Connection* con : conns) {
+
+        // texture link to properties, not objects
+        if (!con->PropertyName().length()) {
+            continue;
+        }
+
+        const Object* const ob = con->SourceObject();
+        if(!ob) {
+            DOMWarning("failed to read source object for texture link, ignoring",&element);
+            continue;
+        }
+
+        const Texture* const tex = dynamic_cast<const Texture*>(ob);
+        if(!tex) {
+            const LayeredTexture* const layeredTexture = dynamic_cast<const LayeredTexture*>(ob);
+            if(!layeredTexture) {
+                DOMWarning("source object for texture link is not a texture or layered texture, ignoring",&element);
+                continue;
+            }
+            const std::string& prop = con->PropertyName();
+            if (layeredTextures.find(prop) != layeredTextures.end()) {
+                DOMWarning("duplicate layered texture link: " + prop,&element);
+            }
+
+            layeredTextures[prop] = layeredTexture;
+            ((LayeredTexture*)layeredTexture)->fillTexture(doc);
+        }
+        else
+        {
+            const std::string& prop = con->PropertyName();
+            if (textures.find(prop) != textures.end()) {
+                DOMWarning("duplicate texture link: " + prop,&element);
+            }
+
+            textures[prop] = tex;
+        }
+
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Material::~Material()
+{
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Texture::Texture(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: Object(id,element,name)
+, uvScaling(1.0f,1.0f)
+, media(0)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const Element* const Type = sc["Type"];
+    const Element* const FileName = sc["FileName"];
+    const Element* const RelativeFilename = sc["RelativeFilename"];
+    const Element* const ModelUVTranslation = sc["ModelUVTranslation"];
+    const Element* const ModelUVScaling = sc["ModelUVScaling"];
+    const Element* const Texture_Alpha_Source = sc["Texture_Alpha_Source"];
+    const Element* const Cropping = sc["Cropping"];
+
+    if(Type) {
+        type = ParseTokenAsString(GetRequiredToken(*Type,0));
+    }
+
+    if(FileName) {
+        fileName = ParseTokenAsString(GetRequiredToken(*FileName,0));
+    }
+
+    if(RelativeFilename) {
+        relativeFileName = ParseTokenAsString(GetRequiredToken(*RelativeFilename,0));
+    }
+
+    if(ModelUVTranslation) {
+        uvTrans = aiVector2D(ParseTokenAsFloat(GetRequiredToken(*ModelUVTranslation,0)),
+            ParseTokenAsFloat(GetRequiredToken(*ModelUVTranslation,1))
+        );
+    }
+
+    if(ModelUVScaling) {
+        uvScaling = aiVector2D(ParseTokenAsFloat(GetRequiredToken(*ModelUVScaling,0)),
+            ParseTokenAsFloat(GetRequiredToken(*ModelUVScaling,1))
+        );
+    }
+
+    if(Cropping) {
+        crop[0] = ParseTokenAsInt(GetRequiredToken(*Cropping,0));
+        crop[1] = ParseTokenAsInt(GetRequiredToken(*Cropping,1));
+        crop[2] = ParseTokenAsInt(GetRequiredToken(*Cropping,2));
+        crop[3] = ParseTokenAsInt(GetRequiredToken(*Cropping,3));
+    }
+    else {
+        // vc8 doesn't support the crop() syntax in initialization lists
+        // (and vc9 WARNS about the new (i.e. compliant) behaviour).
+        crop[0] = crop[1] = crop[2] = crop[3] = 0;
+    }
+
+    if(Texture_Alpha_Source) {
+        alphaSource = ParseTokenAsString(GetRequiredToken(*Texture_Alpha_Source,0));
+    }
+
+    props = GetPropertyTable(doc,"Texture.FbxFileTexture",element,sc);
+
+    // 3DS Max and FBX SDK use "Scaling" and "Translation" instead of "ModelUVScaling" and "ModelUVTranslation". Use these properties if available.
+    bool ok;
+    const aiVector3D& scaling = PropertyGet<aiVector3D>(*props, "Scaling", ok);
+    if (ok) {
+        uvScaling.x = scaling.x;
+        uvScaling.y = scaling.y;
+    }
+
+    const aiVector3D& trans = PropertyGet<aiVector3D>(*props, "Translation", ok);
+    if (ok) {
+        uvTrans.x = trans.x;
+        uvTrans.y = trans.y;
+    }
+
+    // resolve video links
+    if(doc.Settings().readTextures) {
+        const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
+        for(const Connection* con : conns) {
+            const Object* const ob = con->SourceObject();
+            if(!ob) {
+                DOMWarning("failed to read source object for texture link, ignoring",&element);
+                continue;
+            }
+
+            const Video* const video = dynamic_cast<const Video*>(ob);
+            if(video) {
+                media = video;
+            }
+        }
+    }
+}
+
+
+Texture::~Texture()
+{
+
+}
+
+LayeredTexture::LayeredTexture(uint64_t id, const Element& element, const Document& /*doc*/, const std::string& name)
+: Object(id,element,name)
+,blendMode(BlendMode_Modulate)
+,alpha(1)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const Element* const BlendModes = sc["BlendModes"];
+    const Element* const Alphas = sc["Alphas"];
+
+
+    if(BlendModes!=0)
+    {
+        blendMode = (BlendMode)ParseTokenAsInt(GetRequiredToken(*BlendModes,0));
+    }
+    if(Alphas!=0)
+    {
+        alpha = ParseTokenAsFloat(GetRequiredToken(*Alphas,0));
+    }
+}
+
+LayeredTexture::~LayeredTexture()
+{
+    
+}
+
+void LayeredTexture::fillTexture(const Document& doc)
+{
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID());
+    for(size_t i = 0; i < conns.size();++i)
+    {
+        const Connection* con = conns.at(i);
+
+        const Object* const ob = con->SourceObject();
+        if(!ob) {
+            DOMWarning("failed to read source object for texture link, ignoring",&element);
+            continue;
+        }
+
+        const Texture* const tex = dynamic_cast<const Texture*>(ob);
+
+        textures.push_back(tex);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Video::Video(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: Object(id,element,name)
+, contentLength(0)
+, content(0)
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const Element* const Type = sc["Type"];
+    const Element* const FileName = sc.FindElementCaseInsensitive("FileName");  //some files retain the information as "Filename", others "FileName", who knows
+    const Element* const RelativeFilename = sc["RelativeFilename"];
+    const Element* const Content = sc["Content"];
+
+    if(Type) {
+        type = ParseTokenAsString(GetRequiredToken(*Type,0));
+    }
+
+    if(FileName) {
+        fileName = ParseTokenAsString(GetRequiredToken(*FileName,0));
+    }
+
+    if(RelativeFilename) {
+        relativeFileName = ParseTokenAsString(GetRequiredToken(*RelativeFilename,0));
+    }
+
+    if(Content) {
+        //this field is omitted when the embedded texture is already loaded, let's ignore if it's not found
+        try {
+            const Token& token = GetRequiredToken(*Content, 0);
+            const char* data = token.begin();
+            if (!token.IsBinary()) {
+                if (*data != '"') {
+                    DOMError("embedded content is not surrounded by quotation marks", &element);
+                }
+                else {
+                    const char* encodedData = data + 1;
+                    size_t encodedDataLen = static_cast<size_t>(token.end() - token.begin());
+                    // search for last quotation mark
+                    while (encodedDataLen > 1 && encodedData[encodedDataLen] != '"')
+                        encodedDataLen--;
+                    if (encodedDataLen % 4 != 0) {
+                        DOMError("embedded content is invalid, needs to be in base64", &element);
+                    }
+                    else {
+                        contentLength = Util::DecodeBase64(encodedData, encodedDataLen, content);
+                    }
+                }
+            }
+            else if (static_cast<size_t>(token.end() - data) < 5) {
+                DOMError("binary data array is too short, need five (5) bytes for type signature and element count", &element);
+            }
+            else if (*data != 'R') {
+                DOMWarning("video content is not raw binary data, ignoring", &element);
+            }
+            else {
+                // read number of elements
+                uint32_t len = 0;
+                ::memcpy(&len, data + 1, sizeof(len));
+                AI_SWAP4(len);
+
+                contentLength = len;
+
+                content = new uint8_t[len];
+                ::memcpy(content, data + 5, len);
+            }
+        } catch (const runtime_error& runtimeError)
+        {
+            //we don't need the content data for contents that has already been loaded
+            ASSIMP_LOG_DEBUG_F("Caught exception in FBXMaterial (likely because content was already loaded): ",
+                    runtimeError.what());
+        }
+    }
+
+    props = GetPropertyTable(doc,"Video.FbxVideo",element,sc);
+}
+
+
+Video::~Video()
+{
+    if(content) {
+        delete[] content;
+    }
+}
+
+} //!FBX
+} //!Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXMeshGeometry.cpp b/thirdparty/assimp/code/FBXMeshGeometry.cpp
new file mode 100644
index 0000000000..d75476b826
--- /dev/null
+++ b/thirdparty/assimp/code/FBXMeshGeometry.cpp
@@ -0,0 +1,711 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXMeshGeometry.cpp
+ *  @brief Assimp::FBX::MeshGeometry implementation
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include <functional>
+
+#include "FBXMeshGeometry.h"
+#include "FBXDocument.h"
+#include "FBXImporter.h"
+#include "FBXImportSettings.h"
+#include "FBXDocumentUtil.h"
+
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+Geometry::Geometry(uint64_t id, const Element& element, const std::string& name, const Document& doc)
+    : Object(id, element, name)
+    , skin()
+{
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Deformer");
+    for(const Connection* con : conns) {
+        const Skin* const sk = ProcessSimpleConnection<Skin>(*con, false, "Skin -> Geometry", element);
+        if(sk) {
+            skin = sk;
+        }
+        const BlendShape* const bsp = ProcessSimpleConnection<BlendShape>(*con, false, "BlendShape -> Geometry", element);
+        if (bsp) {
+            blendShapes.push_back(bsp);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+Geometry::~Geometry()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<const BlendShape*>& Geometry::GetBlendShapes() const {
+    return blendShapes;
+}
+
+// ------------------------------------------------------------------------------------------------
+const Skin* Geometry::DeformerSkin() const {
+    return skin;
+}
+
+// ------------------------------------------------------------------------------------------------
+MeshGeometry::MeshGeometry(uint64_t id, const Element& element, const std::string& name, const Document& doc)
+: Geometry(id, element,name, doc)
+{
+    const Scope* sc = element.Compound();
+    if (!sc) {
+        DOMError("failed to read Geometry object (class: Mesh), no data scope found");
+    }
+
+    // must have Mesh elements:
+    const Element& Vertices = GetRequiredElement(*sc,"Vertices",&element);
+    const Element& PolygonVertexIndex = GetRequiredElement(*sc,"PolygonVertexIndex",&element);
+
+    // optional Mesh elements:
+    const ElementCollection& Layer = sc->GetCollection("Layer");
+
+    std::vector<aiVector3D> tempVerts;
+    ParseVectorDataArray(tempVerts,Vertices);
+
+    if(tempVerts.empty()) {
+        FBXImporter::LogWarn("encountered mesh with no vertices");
+        return;
+    }
+
+    std::vector<int> tempFaces;
+    ParseVectorDataArray(tempFaces,PolygonVertexIndex);
+
+    if(tempFaces.empty()) {
+        FBXImporter::LogWarn("encountered mesh with no faces");
+        return;
+    }
+
+    m_vertices.reserve(tempFaces.size());
+    m_faces.reserve(tempFaces.size() / 3);
+
+    m_mapping_offsets.resize(tempVerts.size());
+    m_mapping_counts.resize(tempVerts.size(),0);
+    m_mappings.resize(tempFaces.size());
+
+    const size_t vertex_count = tempVerts.size();
+
+    // generate output vertices, computing an adjacency table to
+    // preserve the mapping from fbx indices to *this* indexing.
+    unsigned int count = 0;
+    for(int index : tempFaces) {
+        const int absi = index < 0 ? (-index - 1) : index;
+        if(static_cast<size_t>(absi) >= vertex_count) {
+            DOMError("polygon vertex index out of range",&PolygonVertexIndex);
+        }
+
+        m_vertices.push_back(tempVerts[absi]);
+        ++count;
+
+        ++m_mapping_counts[absi];
+
+        if (index < 0) {
+            m_faces.push_back(count);
+            count = 0;
+        }
+    }
+
+    unsigned int cursor = 0;
+    for (size_t i = 0, e = tempVerts.size(); i < e; ++i) {
+        m_mapping_offsets[i] = cursor;
+        cursor += m_mapping_counts[i];
+
+        m_mapping_counts[i] = 0;
+    }
+
+    cursor = 0;
+    for(int index : tempFaces) {
+        const int absi = index < 0 ? (-index - 1) : index;
+        m_mappings[m_mapping_offsets[absi] + m_mapping_counts[absi]++] = cursor++;
+    }
+
+    // if settings.readAllLayers is true:
+    //  * read all layers, try to load as many vertex channels as possible
+    // if settings.readAllLayers is false:
+    //  * read only the layer with index 0, but warn about any further layers
+    for (ElementMap::const_iterator it = Layer.first; it != Layer.second; ++it) {
+        const TokenList& tokens = (*it).second->Tokens();
+
+        const char* err;
+        const int index = ParseTokenAsInt(*tokens[0], err);
+        if(err) {
+            DOMError(err,&element);
+        }
+
+        if(doc.Settings().readAllLayers || index == 0) {
+            const Scope& layer = GetRequiredScope(*(*it).second);
+            ReadLayer(layer);
+        }
+        else {
+            FBXImporter::LogWarn("ignoring additional geometry layers");
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+MeshGeometry::~MeshGeometry() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& MeshGeometry::GetVertices() const {
+    return m_vertices;
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& MeshGeometry::GetNormals() const {
+    return m_normals;
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& MeshGeometry::GetTangents() const {
+    return m_tangents;
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& MeshGeometry::GetBinormals() const {
+    return m_binormals;
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<unsigned int>& MeshGeometry::GetFaceIndexCounts() const {
+    return m_faces;
+}
+
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector2D>& MeshGeometry::GetTextureCoords( unsigned int index ) const {
+    static const std::vector<aiVector2D> empty;
+    return index >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? empty : m_uvs[ index ];
+}
+
+std::string MeshGeometry::GetTextureCoordChannelName( unsigned int index ) const {
+    return index >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? "" : m_uvNames[ index ];
+}
+
+const std::vector<aiColor4D>& MeshGeometry::GetVertexColors( unsigned int index ) const {
+    static const std::vector<aiColor4D> empty;
+    return index >= AI_MAX_NUMBER_OF_COLOR_SETS ? empty : m_colors[ index ];
+}
+
+const MatIndexArray& MeshGeometry::GetMaterialIndices() const {
+    return m_materials;
+}
+// ------------------------------------------------------------------------------------------------
+const unsigned int* MeshGeometry::ToOutputVertexIndex( unsigned int in_index, unsigned int& count ) const {
+    if ( in_index >= m_mapping_counts.size() ) {
+        return NULL;
+    }
+
+    ai_assert( m_mapping_counts.size() == m_mapping_offsets.size() );
+    count = m_mapping_counts[ in_index ];
+
+    ai_assert( m_mapping_offsets[ in_index ] + count <= m_mappings.size() );
+
+    return &m_mappings[ m_mapping_offsets[ in_index ] ];
+}
+
+// ------------------------------------------------------------------------------------------------
+unsigned int MeshGeometry::FaceForVertexIndex( unsigned int in_index ) const {
+    ai_assert( in_index < m_vertices.size() );
+
+    // in the current conversion pattern this will only be needed if
+    // weights are present, so no need to always pre-compute this table
+    if ( m_facesVertexStartIndices.empty() ) {
+        m_facesVertexStartIndices.resize( m_faces.size() + 1, 0 );
+
+        std::partial_sum( m_faces.begin(), m_faces.end(), m_facesVertexStartIndices.begin() + 1 );
+        m_facesVertexStartIndices.pop_back();
+    }
+
+    ai_assert( m_facesVertexStartIndices.size() == m_faces.size() );
+    const std::vector<unsigned int>::iterator it = std::upper_bound(
+        m_facesVertexStartIndices.begin(),
+        m_facesVertexStartIndices.end(),
+        in_index
+        );
+
+    return static_cast< unsigned int >( std::distance( m_facesVertexStartIndices.begin(), it - 1 ) );
+}
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadLayer(const Scope& layer)
+{
+    const ElementCollection& LayerElement = layer.GetCollection("LayerElement");
+    for (ElementMap::const_iterator eit = LayerElement.first; eit != LayerElement.second; ++eit) {
+        const Scope& elayer = GetRequiredScope(*(*eit).second);
+
+        ReadLayerElement(elayer);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadLayerElement(const Scope& layerElement)
+{
+    const Element& Type = GetRequiredElement(layerElement,"Type");
+    const Element& TypedIndex = GetRequiredElement(layerElement,"TypedIndex");
+
+    const std::string& type = ParseTokenAsString(GetRequiredToken(Type,0));
+    const int typedIndex = ParseTokenAsInt(GetRequiredToken(TypedIndex,0));
+
+    const Scope& top = GetRequiredScope(element);
+    const ElementCollection candidates = top.GetCollection(type);
+
+    for (ElementMap::const_iterator it = candidates.first; it != candidates.second; ++it) {
+        const int index = ParseTokenAsInt(GetRequiredToken(*(*it).second,0));
+        if(index == typedIndex) {
+            ReadVertexData(type,typedIndex,GetRequiredScope(*(*it).second));
+            return;
+        }
+    }
+
+    FBXImporter::LogError(Formatter::format("failed to resolve vertex layer element: ")
+        << type << ", index: " << typedIndex);
+}
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadVertexData(const std::string& type, int index, const Scope& source)
+{
+    const std::string& MappingInformationType = ParseTokenAsString(GetRequiredToken(
+        GetRequiredElement(source,"MappingInformationType"),0)
+    );
+
+    const std::string& ReferenceInformationType = ParseTokenAsString(GetRequiredToken(
+        GetRequiredElement(source,"ReferenceInformationType"),0)
+    );
+
+    if (type == "LayerElementUV") {
+        if(index >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+            FBXImporter::LogError(Formatter::format("ignoring UV layer, maximum number of UV channels exceeded: ")
+                << index << " (limit is " << AI_MAX_NUMBER_OF_TEXTURECOORDS << ")" );
+            return;
+        }
+
+        const Element* Name = source["Name"];
+        m_uvNames[index] = "";
+        if(Name) {
+            m_uvNames[index] = ParseTokenAsString(GetRequiredToken(*Name,0));
+        }
+
+        ReadVertexDataUV(m_uvs[index],source,
+            MappingInformationType,
+            ReferenceInformationType
+        );
+    }
+    else if (type == "LayerElementMaterial") {
+        if (m_materials.size() > 0) {
+            FBXImporter::LogError("ignoring additional material layer");
+            return;
+        }
+
+        std::vector<int> temp_materials;
+
+        ReadVertexDataMaterials(temp_materials,source,
+            MappingInformationType,
+            ReferenceInformationType
+        );
+
+        // sometimes, there will be only negative entries. Drop the material
+        // layer in such a case (I guess it means a default material should
+        // be used). This is what the converter would do anyway, and it
+        // avoids losing the material if there are more material layers
+        // coming of which at least one contains actual data (did observe
+        // that with one test file).
+        const size_t count_neg = std::count_if(temp_materials.begin(),temp_materials.end(),[](int n) { return n < 0; });
+        if(count_neg == temp_materials.size()) {
+            FBXImporter::LogWarn("ignoring dummy material layer (all entries -1)");
+            return;
+        }
+
+        std::swap(temp_materials, m_materials);
+    }
+    else if (type == "LayerElementNormal") {
+        if (m_normals.size() > 0) {
+            FBXImporter::LogError("ignoring additional normal layer");
+            return;
+        }
+
+        ReadVertexDataNormals(m_normals,source,
+            MappingInformationType,
+            ReferenceInformationType
+        );
+    }
+    else if (type == "LayerElementTangent") {
+        if (m_tangents.size() > 0) {
+            FBXImporter::LogError("ignoring additional tangent layer");
+            return;
+        }
+
+        ReadVertexDataTangents(m_tangents,source,
+            MappingInformationType,
+            ReferenceInformationType
+        );
+    }
+    else if (type == "LayerElementBinormal") {
+        if (m_binormals.size() > 0) {
+            FBXImporter::LogError("ignoring additional binormal layer");
+            return;
+        }
+
+        ReadVertexDataBinormals(m_binormals,source,
+            MappingInformationType,
+            ReferenceInformationType
+        );
+    }
+    else if (type == "LayerElementColor") {
+        if(index >= AI_MAX_NUMBER_OF_COLOR_SETS) {
+            FBXImporter::LogError(Formatter::format("ignoring vertex color layer, maximum number of color sets exceeded: ")
+                << index << " (limit is " << AI_MAX_NUMBER_OF_COLOR_SETS << ")" );
+            return;
+        }
+
+        ReadVertexDataColors(m_colors[index],source,
+            MappingInformationType,
+            ReferenceInformationType
+        );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Lengthy utility function to read and resolve a FBX vertex data array - that is, the
+// output is in polygon vertex order. This logic is used for reading normals, UVs, colors,
+// tangents ..
+template <typename T>
+void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType,
+    const char* dataElementName,
+    const char* indexDataElementName,
+    size_t vertex_count,
+    const std::vector<unsigned int>& mapping_counts,
+    const std::vector<unsigned int>& mapping_offsets,
+    const std::vector<unsigned int>& mappings)
+{
+    bool isDirect = ReferenceInformationType == "Direct";
+    bool isIndexToDirect = ReferenceInformationType == "IndexToDirect";
+
+    // fall-back to direct data if there is no index data element
+    if ( isIndexToDirect && !HasElement( source, indexDataElementName ) ) {
+        isDirect = true;
+        isIndexToDirect = false;
+    }
+
+    // handle permutations of Mapping and Reference type - it would be nice to
+    // deal with this more elegantly and with less redundancy, but right
+    // now it seems unavoidable.
+    if (MappingInformationType == "ByVertice" && isDirect) {
+        if (!HasElement(source, dataElementName)) {
+            return;
+        }
+        std::vector<T> tempData;
+		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
+
+        data_out.resize(vertex_count);
+		for (size_t i = 0, e = tempData.size(); i < e; ++i) {
+
+            const unsigned int istart = mapping_offsets[i], iend = istart + mapping_counts[i];
+            for (unsigned int j = istart; j < iend; ++j) {
+				data_out[mappings[j]] = tempData[i];
+            }
+        }
+    }
+    else if (MappingInformationType == "ByVertice" && isIndexToDirect) {
+		std::vector<T> tempData;
+		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
+
+        data_out.resize(vertex_count);
+
+        std::vector<int> uvIndices;
+        ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
+        for (size_t i = 0, e = uvIndices.size(); i < e; ++i) {
+
+            const unsigned int istart = mapping_offsets[i], iend = istart + mapping_counts[i];
+            for (unsigned int j = istart; j < iend; ++j) {
+				if (static_cast<size_t>(uvIndices[i]) >= tempData.size()) {
+                    DOMError("index out of range",&GetRequiredElement(source,indexDataElementName));
+                }
+				data_out[mappings[j]] = tempData[uvIndices[i]];
+            }
+        }
+    }
+    else if (MappingInformationType == "ByPolygonVertex" && isDirect) {
+		std::vector<T> tempData;
+		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
+
+		if (tempData.size() != vertex_count) {
+            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByPolygon mapping: ")
+				<< tempData.size() << ", expected " << vertex_count
+            );
+            return;
+        }
+
+		data_out.swap(tempData);
+    }
+    else if (MappingInformationType == "ByPolygonVertex" && isIndexToDirect) {
+		std::vector<T> tempData;
+		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
+
+        data_out.resize(vertex_count);
+
+        std::vector<int> uvIndices;
+        ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
+
+        if (uvIndices.size() != vertex_count) {
+            FBXImporter::LogError("length of input data unexpected for ByPolygonVertex mapping");
+            return;
+        }
+
+        const T empty;
+        unsigned int next = 0;
+        for(int i : uvIndices) {
+            if ( -1 == i ) {
+                data_out[ next++ ] = empty;
+                continue;
+            }
+            if (static_cast<size_t>(i) >= tempData.size()) {
+                DOMError("index out of range",&GetRequiredElement(source,indexDataElementName));
+            }
+
+			data_out[next++] = tempData[i];
+        }
+    }
+    else {
+        FBXImporter::LogError(Formatter::format("ignoring vertex data channel, access type not implemented: ")
+            << MappingInformationType << "," << ReferenceInformationType);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadVertexDataNormals(std::vector<aiVector3D>& normals_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType)
+{
+    ResolveVertexDataArray(normals_out,source,MappingInformationType,ReferenceInformationType,
+        "Normals",
+        "NormalsIndex",
+        m_vertices.size(),
+        m_mapping_counts,
+        m_mapping_offsets,
+        m_mappings);
+}
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadVertexDataUV(std::vector<aiVector2D>& uv_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType)
+{
+    ResolveVertexDataArray(uv_out,source,MappingInformationType,ReferenceInformationType,
+        "UV",
+        "UVIndex",
+        m_vertices.size(),
+        m_mapping_counts,
+        m_mapping_offsets,
+        m_mappings);
+}
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadVertexDataColors(std::vector<aiColor4D>& colors_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType)
+{
+    ResolveVertexDataArray(colors_out,source,MappingInformationType,ReferenceInformationType,
+        "Colors",
+        "ColorIndex",
+        m_vertices.size(),
+        m_mapping_counts,
+        m_mapping_offsets,
+        m_mappings);
+}
+
+// ------------------------------------------------------------------------------------------------
+static const std::string TangentIndexToken = "TangentIndex";
+static const std::string TangentsIndexToken = "TangentsIndex";
+
+void MeshGeometry::ReadVertexDataTangents(std::vector<aiVector3D>& tangents_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType)
+{
+    const char * str = source.Elements().count( "Tangents" ) > 0 ? "Tangents" : "Tangent";
+    const char * strIdx = source.Elements().count( "Tangents" ) > 0 ? TangentsIndexToken.c_str() : TangentIndexToken.c_str();
+    ResolveVertexDataArray(tangents_out,source,MappingInformationType,ReferenceInformationType,
+        str,
+        strIdx,
+        m_vertices.size(),
+        m_mapping_counts,
+        m_mapping_offsets,
+        m_mappings);
+}
+
+// ------------------------------------------------------------------------------------------------
+static const std::string BinormalIndexToken = "BinormalIndex";
+static const std::string BinormalsIndexToken = "BinormalsIndex";
+
+void MeshGeometry::ReadVertexDataBinormals(std::vector<aiVector3D>& binormals_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType)
+{
+    const char * str = source.Elements().count( "Binormals" ) > 0 ? "Binormals" : "Binormal";
+    const char * strIdx = source.Elements().count( "Binormals" ) > 0 ? BinormalsIndexToken.c_str() : BinormalIndexToken.c_str();
+    ResolveVertexDataArray(binormals_out,source,MappingInformationType,ReferenceInformationType,
+        str,
+        strIdx,
+        m_vertices.size(),
+        m_mapping_counts,
+        m_mapping_offsets,
+        m_mappings);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+void MeshGeometry::ReadVertexDataMaterials(std::vector<int>& materials_out, const Scope& source,
+    const std::string& MappingInformationType,
+    const std::string& ReferenceInformationType)
+{
+    const size_t face_count = m_faces.size();
+    ai_assert(face_count);
+
+    // materials are handled separately. First of all, they are assigned per-face
+    // and not per polyvert. Secondly, ReferenceInformationType=IndexToDirect
+    // has a slightly different meaning for materials.
+    ParseVectorDataArray(materials_out,GetRequiredElement(source,"Materials"));
+
+    if (MappingInformationType == "AllSame") {
+        // easy - same material for all faces
+        if (materials_out.empty()) {
+            FBXImporter::LogError(Formatter::format("expected material index, ignoring"));
+            return;
+        }
+        else if (materials_out.size() > 1) {
+            FBXImporter::LogWarn(Formatter::format("expected only a single material index, ignoring all except the first one"));
+            materials_out.clear();
+        }
+
+        m_materials.assign(m_vertices.size(),materials_out[0]);
+    }
+    else if (MappingInformationType == "ByPolygon" && ReferenceInformationType == "IndexToDirect") {
+        m_materials.resize(face_count);
+
+        if(materials_out.size() != face_count) {
+            FBXImporter::LogError(Formatter::format("length of input data unexpected for ByPolygon mapping: ")
+                << materials_out.size() << ", expected " << face_count
+            );
+            return;
+        }
+    }
+    else {
+        FBXImporter::LogError(Formatter::format("ignoring material assignments, access type not implemented: ")
+            << MappingInformationType << "," << ReferenceInformationType);
+    }
+}
+// ------------------------------------------------------------------------------------------------
+ShapeGeometry::ShapeGeometry(uint64_t id, const Element& element, const std::string& name, const Document& doc)
+    : Geometry(id, element, name, doc)
+{
+    const Scope* sc = element.Compound();
+    if (!sc) {
+        DOMError("failed to read Geometry object (class: Shape), no data scope found");
+    }
+    const Element& Indexes = GetRequiredElement(*sc, "Indexes", &element);
+    const Element& Normals = GetRequiredElement(*sc, "Normals", &element);
+    const Element& Vertices = GetRequiredElement(*sc, "Vertices", &element);
+    ParseVectorDataArray(m_indices, Indexes);
+    ParseVectorDataArray(m_vertices, Vertices);
+    ParseVectorDataArray(m_normals, Normals);
+}
+
+// ------------------------------------------------------------------------------------------------
+ShapeGeometry::~ShapeGeometry() {
+    // empty
+}
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& ShapeGeometry::GetVertices() const {
+    return m_vertices;
+}
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& ShapeGeometry::GetNormals() const {
+    return m_normals;
+}
+// ------------------------------------------------------------------------------------------------
+const std::vector<unsigned int>& ShapeGeometry::GetIndices() const {
+    return m_indices;
+}
+// ------------------------------------------------------------------------------------------------
+LineGeometry::LineGeometry(uint64_t id, const Element& element, const std::string& name, const Document& doc)
+    : Geometry(id, element, name, doc)
+{
+    const Scope* sc = element.Compound();
+    if (!sc) {
+        DOMError("failed to read Geometry object (class: Line), no data scope found");
+    }
+    const Element& Points = GetRequiredElement(*sc, "Points", &element);
+    const Element& PointsIndex = GetRequiredElement(*sc, "PointsIndex", &element);
+    ParseVectorDataArray(m_vertices, Points);
+    ParseVectorDataArray(m_indices, PointsIndex);
+}
+
+// ------------------------------------------------------------------------------------------------
+LineGeometry::~LineGeometry() {
+    // empty
+}
+// ------------------------------------------------------------------------------------------------
+const std::vector<aiVector3D>& LineGeometry::GetVertices() const {
+    return m_vertices;
+}
+// ------------------------------------------------------------------------------------------------
+const std::vector<int>& LineGeometry::GetIndices() const {
+    return m_indices;
+}
+} // !FBX
+} // !Assimp
+#endif
+
diff --git a/thirdparty/assimp/code/FBXMeshGeometry.h b/thirdparty/assimp/code/FBXMeshGeometry.h
new file mode 100644
index 0000000000..d6d4512177
--- /dev/null
+++ b/thirdparty/assimp/code/FBXMeshGeometry.h
@@ -0,0 +1,235 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXImporter.h
+*  @brief Declaration of the FBX main importer class
+*/
+#ifndef INCLUDED_AI_FBX_MESHGEOMETRY_H
+#define INCLUDED_AI_FBX_MESHGEOMETRY_H
+
+#include "FBXParser.h"
+#include "FBXDocument.h"
+
+namespace Assimp {
+namespace FBX {
+
+/** 
+ *  DOM base class for all kinds of FBX geometry 
+ */
+class Geometry : public Object
+{
+public:
+    Geometry( uint64_t id, const Element& element, const std::string& name, const Document& doc );
+    virtual ~Geometry();
+
+    /** Get the Skin attached to this geometry or NULL */
+    const Skin* DeformerSkin() const;
+
+    /** Get the BlendShape attached to this geometry or NULL */
+    const std::vector<const BlendShape*>& GetBlendShapes() const;
+
+private:
+    const Skin* skin;
+    std::vector<const BlendShape*> blendShapes;
+
+};
+
+typedef std::vector<int> MatIndexArray;
+
+
+/** 
+ *  DOM class for FBX geometry of type "Mesh"
+ */
+class MeshGeometry : public Geometry
+{
+public:
+    /** The class constructor */
+    MeshGeometry( uint64_t id, const Element& element, const std::string& name, const Document& doc );
+    
+    /** The class destructor */
+    virtual ~MeshGeometry();
+
+    /** Get a list of all vertex points, non-unique*/
+    const std::vector<aiVector3D>& GetVertices() const;
+
+    /** Get a list of all vertex normals or an empty array if
+    *  no normals are specified. */
+    const std::vector<aiVector3D>& GetNormals() const;
+
+    /** Get a list of all vertex tangents or an empty array
+    *  if no tangents are specified */
+    const std::vector<aiVector3D>& GetTangents() const;
+
+    /** Get a list of all vertex bi-normals or an empty array
+    *  if no bi-normals are specified */
+    const std::vector<aiVector3D>& GetBinormals() const;
+
+    /** Return list of faces - each entry denotes a face and specifies
+    *  how many vertices it has. Vertices are taken from the
+    *  vertex data arrays in sequential order. */
+    const std::vector<unsigned int>& GetFaceIndexCounts() const;
+
+    /** Get a UV coordinate slot, returns an empty array if
+    *  the requested slot does not exist. */
+    const std::vector<aiVector2D>& GetTextureCoords( unsigned int index ) const;
+
+    /** Get a UV coordinate slot, returns an empty array if
+    *  the requested slot does not exist. */
+    std::string GetTextureCoordChannelName( unsigned int index ) const;
+
+    /** Get a vertex color coordinate slot, returns an empty array if
+    *  the requested slot does not exist. */
+    const std::vector<aiColor4D>& GetVertexColors( unsigned int index ) const;
+
+    /** Get per-face-vertex material assignments */
+    const MatIndexArray& GetMaterialIndices() const;
+
+    /** Convert from a fbx file vertex index (for example from a #Cluster weight) or NULL
+    * if the vertex index is not valid. */
+    const unsigned int* ToOutputVertexIndex( unsigned int in_index, unsigned int& count ) const;
+
+    /** Determine the face to which a particular output vertex index belongs.
+    *  This mapping is always unique. */
+    unsigned int FaceForVertexIndex( unsigned int in_index ) const;
+private:
+    void ReadLayer( const Scope& layer );
+    void ReadLayerElement( const Scope& layerElement );
+    void ReadVertexData( const std::string& type, int index, const Scope& source );
+
+    void ReadVertexDataUV( std::vector<aiVector2D>& uv_out, const Scope& source,
+        const std::string& MappingInformationType,
+        const std::string& ReferenceInformationType );
+
+    void ReadVertexDataNormals( std::vector<aiVector3D>& normals_out, const Scope& source,
+        const std::string& MappingInformationType,
+        const std::string& ReferenceInformationType );
+
+    void ReadVertexDataColors( std::vector<aiColor4D>& colors_out, const Scope& source,
+        const std::string& MappingInformationType,
+        const std::string& ReferenceInformationType );
+
+    void ReadVertexDataTangents( std::vector<aiVector3D>& tangents_out, const Scope& source,
+        const std::string& MappingInformationType,
+        const std::string& ReferenceInformationType );
+
+    void ReadVertexDataBinormals( std::vector<aiVector3D>& binormals_out, const Scope& source,
+        const std::string& MappingInformationType,
+        const std::string& ReferenceInformationType );
+
+    void ReadVertexDataMaterials( MatIndexArray& materials_out, const Scope& source,
+        const std::string& MappingInformationType,
+        const std::string& ReferenceInformationType );
+
+private:
+    // cached data arrays
+    MatIndexArray m_materials;
+    std::vector<aiVector3D> m_vertices;
+    std::vector<unsigned int> m_faces;
+    mutable std::vector<unsigned int> m_facesVertexStartIndices;
+    std::vector<aiVector3D> m_tangents;
+    std::vector<aiVector3D> m_binormals;
+    std::vector<aiVector3D> m_normals;
+
+    std::string m_uvNames[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
+    std::vector<aiVector2D> m_uvs[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
+    std::vector<aiColor4D> m_colors[ AI_MAX_NUMBER_OF_COLOR_SETS ];
+
+    std::vector<unsigned int> m_mapping_counts;
+    std::vector<unsigned int> m_mapping_offsets;
+    std::vector<unsigned int> m_mappings;
+};
+
+/**
+*  DOM class for FBX geometry of type "Shape"
+*/
+class ShapeGeometry : public Geometry
+{
+public:
+    /** The class constructor */
+    ShapeGeometry(uint64_t id, const Element& element, const std::string& name, const Document& doc);
+
+    /** The class destructor */
+    virtual ~ShapeGeometry();
+
+    /** Get a list of all vertex points, non-unique*/
+    const std::vector<aiVector3D>& GetVertices() const;
+
+    /** Get a list of all vertex normals or an empty array if
+    *  no normals are specified. */
+    const std::vector<aiVector3D>& GetNormals() const;
+
+    /** Return list of vertex indices. */
+    const std::vector<unsigned int>& GetIndices() const;
+
+private:
+    std::vector<aiVector3D> m_vertices;
+    std::vector<aiVector3D> m_normals;
+    std::vector<unsigned int> m_indices;
+};
+/**
+*  DOM class for FBX geometry of type "Line"
+*/
+class LineGeometry : public Geometry
+{
+public:
+    /** The class constructor */
+    LineGeometry(uint64_t id, const Element& element, const std::string& name, const Document& doc);
+
+    /** The class destructor */
+    virtual ~LineGeometry();
+
+    /** Get a list of all vertex points, non-unique*/
+    const std::vector<aiVector3D>& GetVertices() const;
+
+    /** Return list of vertex indices. */
+    const std::vector<int>& GetIndices() const;
+
+private:
+    std::vector<aiVector3D> m_vertices;
+    std::vector<int> m_indices;
+};
+
+}
+}
+
+#endif // INCLUDED_AI_FBX_MESHGEOMETRY_H
+
diff --git a/thirdparty/assimp/code/FBXModel.cpp b/thirdparty/assimp/code/FBXModel.cpp
new file mode 100644
index 0000000000..589af36ac7
--- /dev/null
+++ b/thirdparty/assimp/code/FBXModel.cpp
@@ -0,0 +1,153 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXModel.cpp
+ *  @brief Assimp::FBX::Model implementation
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXParser.h"
+#include "FBXMeshGeometry.h"
+#include "FBXDocument.h"
+#include "FBXImporter.h"
+#include "FBXDocumentUtil.h"
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+Model::Model(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+    : Object(id,element,name)
+    , shading("Y")
+{
+    const Scope& sc = GetRequiredScope(element);
+    const Element* const Shading = sc["Shading"];
+    const Element* const Culling = sc["Culling"];
+
+    if(Shading) {
+        shading = GetRequiredToken(*Shading,0).StringContents();
+    }
+
+    if (Culling) {
+        culling = ParseTokenAsString(GetRequiredToken(*Culling,0));
+    }
+
+    props = GetPropertyTable(doc,"Model.FbxNode",element,sc);
+    ResolveLinks(element,doc);
+}
+
+// ------------------------------------------------------------------------------------------------
+Model::~Model()
+{
+
+}
+
+// ------------------------------------------------------------------------------------------------
+void Model::ResolveLinks(const Element& element, const Document& doc)
+{
+    const char* const arr[] = {"Geometry","Material","NodeAttribute"};
+
+    // resolve material
+    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),arr, 3);
+
+    materials.reserve(conns.size());
+    geometry.reserve(conns.size());
+    attributes.reserve(conns.size());
+    for(const Connection* con : conns) {
+
+        // material and geometry links should be Object-Object connections
+        if (con->PropertyName().length()) {
+            continue;
+        }
+
+        const Object* const ob = con->SourceObject();
+        if(!ob) {
+            DOMWarning("failed to read source object for incoming Model link, ignoring",&element);
+            continue;
+        }
+
+        const Material* const mat = dynamic_cast<const Material*>(ob);
+        if(mat) {
+            materials.push_back(mat);
+            continue;
+        }
+
+        const Geometry* const geo = dynamic_cast<const Geometry*>(ob);
+        if(geo) {
+            geometry.push_back(geo);
+            continue;
+        }
+
+        const NodeAttribute* const att = dynamic_cast<const NodeAttribute*>(ob);
+        if(att) {
+            attributes.push_back(att);
+            continue;
+        }
+
+        DOMWarning("source object for model link is neither Material, NodeAttribute nor Geometry, ignoring",&element);
+        continue;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+bool Model::IsNull() const
+{
+    const std::vector<const NodeAttribute*>& attrs = GetAttributes();
+    for(const NodeAttribute* att : attrs) {
+
+        const Null* null_tag = dynamic_cast<const Null*>(att);
+        if(null_tag) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+
+} //!FBX
+} //!Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXNodeAttribute.cpp b/thirdparty/assimp/code/FBXNodeAttribute.cpp
new file mode 100644
index 0000000000..b72e5637ee
--- /dev/null
+++ b/thirdparty/assimp/code/FBXNodeAttribute.cpp
@@ -0,0 +1,170 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXNoteAttribute.cpp
+ *  @brief Assimp::FBX::NodeAttribute (and subclasses) implementation
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXParser.h"
+#include "FBXDocument.h"
+#include "FBXImporter.h"
+#include "FBXDocumentUtil.h"
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+NodeAttribute::NodeAttribute(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: Object(id,element,name)
+, props()
+{
+    const Scope& sc = GetRequiredScope(element);
+
+    const std::string& classname = ParseTokenAsString(GetRequiredToken(element,2));
+
+    // hack on the deriving type but Null/LimbNode attributes are the only case in which
+    // the property table is by design absent and no warning should be generated
+    // for it.
+    const bool is_null_or_limb = !strcmp(classname.c_str(), "Null") || !strcmp(classname.c_str(), "LimbNode");
+    props = GetPropertyTable(doc,"NodeAttribute.Fbx" + classname,element,sc, is_null_or_limb);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+NodeAttribute::~NodeAttribute()
+{
+    // empty
+}
+
+
+// ------------------------------------------------------------------------------------------------
+CameraSwitcher::CameraSwitcher(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+    : NodeAttribute(id,element,doc,name)
+{
+    const Scope& sc = GetRequiredScope(element);
+    const Element* const CameraId = sc["CameraId"];
+    const Element* const CameraName = sc["CameraName"];
+    const Element* const CameraIndexName = sc["CameraIndexName"];
+
+    if(CameraId) {
+        cameraId = ParseTokenAsInt(GetRequiredToken(*CameraId,0));
+    }
+
+    if(CameraName) {
+        cameraName = GetRequiredToken(*CameraName,0).StringContents();
+    }
+
+    if(CameraIndexName && CameraIndexName->Tokens().size()) {
+        cameraIndexName = GetRequiredToken(*CameraIndexName,0).StringContents();
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+CameraSwitcher::~CameraSwitcher()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+Camera::Camera(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: NodeAttribute(id,element,doc,name)
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+Camera::~Camera()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+Light::Light(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: NodeAttribute(id,element,doc,name)
+{
+    // empty
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Light::~Light()
+{
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Null::Null(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: NodeAttribute(id,element,doc,name)
+{
+
+}
+
+
+// ------------------------------------------------------------------------------------------------
+Null::~Null()
+{
+
+}
+
+
+// ------------------------------------------------------------------------------------------------
+LimbNode::LimbNode(uint64_t id, const Element& element, const Document& doc, const std::string& name)
+: NodeAttribute(id,element,doc,name)
+{
+
+}
+
+
+// ------------------------------------------------------------------------------------------------
+LimbNode::~LimbNode()
+{
+
+}
+
+}
+}
+
+#endif
diff --git a/thirdparty/assimp/code/FBXParser.cpp b/thirdparty/assimp/code/FBXParser.cpp
new file mode 100644
index 0000000000..b255c47347
--- /dev/null
+++ b/thirdparty/assimp/code/FBXParser.cpp
@@ -0,0 +1,1313 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXParser.cpp
+ *  @brief Implementation of the FBX parser and the rudimentary DOM that we use
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#ifdef ASSIMP_BUILD_NO_OWN_ZLIB
+#   include <zlib.h>
+#else
+#   include "../contrib/zlib/zlib.h"
+#endif
+
+#include "FBXTokenizer.h"
+#include "FBXParser.h"
+#include "FBXUtil.h"
+
+#include <assimp/ParsingUtils.h>
+#include <assimp/fast_atof.h>
+#include <assimp/ByteSwapper.h>
+
+#include <iostream>
+
+using namespace Assimp;
+using namespace Assimp::FBX;
+
+namespace {
+
+    // ------------------------------------------------------------------------------------------------
+    // signal parse error, this is always unrecoverable. Throws DeadlyImportError.
+    AI_WONT_RETURN void ParseError(const std::string& message, const Token& token) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void ParseError(const std::string& message, const Token& token)
+    {
+        throw DeadlyImportError(Util::AddTokenText("FBX-Parser",message,&token));
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    AI_WONT_RETURN void ParseError(const std::string& message, const Element* element = NULL) AI_WONT_RETURN_SUFFIX;
+    AI_WONT_RETURN void ParseError(const std::string& message, const Element* element)
+    {
+        if(element) {
+            ParseError(message,element->KeyToken());
+        }
+        throw DeadlyImportError("FBX-Parser " + message);
+    }
+
+
+    // ------------------------------------------------------------------------------------------------
+    void ParseError(const std::string& message, TokenPtr token)
+    {
+        if(token) {
+            ParseError(message, *token);
+        }
+        ParseError(message);
+    }
+
+    // Initially, we did reinterpret_cast, breaking strict aliasing rules.
+    // This actually caused trouble on Android, so let's be safe this time.
+    // https://github.com/assimp/assimp/issues/24
+    template <typename T>
+    T SafeParse(const char* data, const char* end) {
+        // Actual size validation happens during Tokenization so
+        // this is valid as an assertion.
+        (void)(end);
+        ai_assert(static_cast<size_t>(end - data) >= sizeof(T));
+        T result = static_cast<T>(0);
+        ::memcpy(&result, data, sizeof(T));
+        return result;
+    }
+}
+
+namespace Assimp {
+namespace FBX {
+
+// ------------------------------------------------------------------------------------------------
+Element::Element(const Token& key_token, Parser& parser)
+: key_token(key_token)
+{
+    TokenPtr n = NULL;
+    do {
+        n = parser.AdvanceToNextToken();
+        if(!n) {
+            ParseError("unexpected end of file, expected closing bracket",parser.LastToken());
+        }
+
+        if (n->Type() == TokenType_DATA) {
+            tokens.push_back(n);
+			TokenPtr prev = n;
+            n = parser.AdvanceToNextToken();
+            if(!n) {
+                ParseError("unexpected end of file, expected bracket, comma or key",parser.LastToken());
+            }
+
+			const TokenType ty = n->Type();
+
+			// some exporters are missing a comma on the next line
+			if (ty == TokenType_DATA && prev->Type() == TokenType_DATA && (n->Line() == prev->Line() + 1)) {
+				tokens.push_back(n);
+				continue;
+			}
+
+            if (ty != TokenType_OPEN_BRACKET && ty != TokenType_CLOSE_BRACKET && ty != TokenType_COMMA && ty != TokenType_KEY) {
+                ParseError("unexpected token; expected bracket, comma or key",n);
+            }
+        }
+
+        if (n->Type() == TokenType_OPEN_BRACKET) {
+            compound.reset(new Scope(parser));
+
+            // current token should be a TOK_CLOSE_BRACKET
+            n = parser.CurrentToken();
+            ai_assert(n);
+
+            if (n->Type() != TokenType_CLOSE_BRACKET) {
+                ParseError("expected closing bracket",n);
+            }
+
+            parser.AdvanceToNextToken();
+            return;
+        }
+    }
+    while(n->Type() != TokenType_KEY && n->Type() != TokenType_CLOSE_BRACKET);
+}
+
+// ------------------------------------------------------------------------------------------------
+Element::~Element()
+{
+     // no need to delete tokens, they are owned by the parser
+}
+
+// ------------------------------------------------------------------------------------------------
+Scope::Scope(Parser& parser,bool topLevel)
+{
+    if(!topLevel) {
+        TokenPtr t = parser.CurrentToken();
+        if (t->Type() != TokenType_OPEN_BRACKET) {
+            ParseError("expected open bracket",t);
+        }
+    }
+
+    TokenPtr n = parser.AdvanceToNextToken();
+    if(n == NULL) {
+        ParseError("unexpected end of file");
+    }
+
+    // note: empty scopes are allowed
+    while(n->Type() != TokenType_CLOSE_BRACKET) {
+        if (n->Type() != TokenType_KEY) {
+            ParseError("unexpected token, expected TOK_KEY",n);
+        }
+
+        const std::string& str = n->StringContents();
+        elements.insert(ElementMap::value_type(str,new_Element(*n,parser)));
+
+        // Element() should stop at the next Key token (or right after a Close token)
+        n = parser.CurrentToken();
+        if(n == NULL) {
+            if (topLevel) {
+                return;
+            }
+            ParseError("unexpected end of file",parser.LastToken());
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+Scope::~Scope()
+{
+    for(ElementMap::value_type& v : elements) {
+        delete v.second;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+Parser::Parser (const TokenList& tokens, bool is_binary)
+: tokens(tokens)
+, last()
+, current()
+, cursor(tokens.begin())
+, is_binary(is_binary)
+{
+    root.reset(new Scope(*this,true));
+}
+
+// ------------------------------------------------------------------------------------------------
+Parser::~Parser()
+{
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+TokenPtr Parser::AdvanceToNextToken()
+{
+    last = current;
+    if (cursor == tokens.end()) {
+        current = NULL;
+    } else {
+        current = *cursor++;
+    }
+    return current;
+}
+
+// ------------------------------------------------------------------------------------------------
+TokenPtr Parser::CurrentToken() const
+{
+    return current;
+}
+
+// ------------------------------------------------------------------------------------------------
+TokenPtr Parser::LastToken() const
+{
+    return last;
+}
+
+// ------------------------------------------------------------------------------------------------
+uint64_t ParseTokenAsID(const Token& t, const char*& err_out)
+{
+    err_out = NULL;
+
+    if (t.Type() != TokenType_DATA) {
+        err_out = "expected TOK_DATA token";
+        return 0L;
+    }
+
+    if(t.IsBinary())
+    {
+        const char* data = t.begin();
+        if (data[0] != 'L') {
+            err_out = "failed to parse ID, unexpected data type, expected L(ong) (binary)";
+            return 0L;
+        }
+
+        BE_NCONST uint64_t id = SafeParse<uint64_t>(data+1, t.end());
+        AI_SWAP8(id);
+        return id;
+    }
+
+    // XXX: should use size_t here
+    unsigned int length = static_cast<unsigned int>(t.end() - t.begin());
+    ai_assert(length > 0);
+
+    const char* out = nullptr;
+    const uint64_t id = strtoul10_64(t.begin(),&out,&length);
+    if (out > t.end()) {
+        err_out = "failed to parse ID (text)";
+        return 0L;
+    }
+
+    return id;
+}
+
+// ------------------------------------------------------------------------------------------------
+size_t ParseTokenAsDim(const Token& t, const char*& err_out)
+{
+    // same as ID parsing, except there is a trailing asterisk
+    err_out = NULL;
+
+    if (t.Type() != TokenType_DATA) {
+        err_out = "expected TOK_DATA token";
+        return 0;
+    }
+
+    if(t.IsBinary())
+    {
+        const char* data = t.begin();
+        if (data[0] != 'L') {
+            err_out = "failed to parse ID, unexpected data type, expected L(ong) (binary)";
+            return 0;
+        }
+
+        BE_NCONST uint64_t id = SafeParse<uint64_t>(data+1, t.end());
+        AI_SWAP8(id);
+        return static_cast<size_t>(id);
+    }
+
+    if(*t.begin() != '*') {
+        err_out = "expected asterisk before array dimension";
+        return 0;
+    }
+
+    // XXX: should use size_t here
+    unsigned int length = static_cast<unsigned int>(t.end() - t.begin());
+    if(length == 0) {
+        err_out = "expected valid integer number after asterisk";
+        return 0;
+    }
+
+    const char* out = nullptr;
+    const size_t id = static_cast<size_t>(strtoul10_64(t.begin() + 1,&out,&length));
+    if (out > t.end()) {
+        err_out = "failed to parse ID";
+        return 0;
+    }
+
+    return id;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+float ParseTokenAsFloat(const Token& t, const char*& err_out)
+{
+    err_out = NULL;
+
+    if (t.Type() != TokenType_DATA) {
+        err_out = "expected TOK_DATA token";
+        return 0.0f;
+    }
+
+    if(t.IsBinary())
+    {
+        const char* data = t.begin();
+        if (data[0] != 'F' && data[0] != 'D') {
+            err_out = "failed to parse F(loat) or D(ouble), unexpected data type (binary)";
+            return 0.0f;
+        }
+
+        if (data[0] == 'F') {
+            return SafeParse<float>(data+1, t.end());
+        }
+        else {
+            return static_cast<float>( SafeParse<double>(data+1, t.end()) );
+        }
+    }
+
+    // need to copy the input string to a temporary buffer
+    // first - next in the fbx token stream comes ',',
+    // which fast_atof could interpret as decimal point.
+#define MAX_FLOAT_LENGTH 31
+    char temp[MAX_FLOAT_LENGTH + 1];
+    const size_t length = static_cast<size_t>(t.end()-t.begin());
+    std::copy(t.begin(),t.end(),temp);
+    temp[std::min(static_cast<size_t>(MAX_FLOAT_LENGTH),length)] = '\0';
+
+    return fast_atof(temp);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+int ParseTokenAsInt(const Token& t, const char*& err_out)
+{
+    err_out = NULL;
+
+    if (t.Type() != TokenType_DATA) {
+        err_out = "expected TOK_DATA token";
+        return 0;
+    }
+
+    if(t.IsBinary())
+    {
+        const char* data = t.begin();
+        if (data[0] != 'I') {
+            err_out = "failed to parse I(nt), unexpected data type (binary)";
+            return 0;
+        }
+
+        BE_NCONST int32_t ival = SafeParse<int32_t>(data+1, t.end());
+        AI_SWAP4(ival);
+        return static_cast<int>(ival);
+    }
+
+    ai_assert(static_cast<size_t>(t.end() - t.begin()) > 0);
+
+    const char* out;
+    const int intval = strtol10(t.begin(),&out);
+    if (out != t.end()) {
+        err_out = "failed to parse ID";
+        return 0;
+    }
+
+    return intval;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+int64_t ParseTokenAsInt64(const Token& t, const char*& err_out)
+{
+    err_out = NULL;
+
+    if (t.Type() != TokenType_DATA) {
+        err_out = "expected TOK_DATA token";
+        return 0L;
+    }
+
+    if (t.IsBinary())
+    {
+        const char* data = t.begin();
+        if (data[0] != 'L') {
+            err_out = "failed to parse Int64, unexpected data type";
+            return 0L;
+        }
+
+        BE_NCONST int64_t id = SafeParse<int64_t>(data + 1, t.end());
+        AI_SWAP8(id);
+        return id;
+    }
+
+    // XXX: should use size_t here
+    unsigned int length = static_cast<unsigned int>(t.end() - t.begin());
+    ai_assert(length > 0);
+
+    const char* out = nullptr;
+    const int64_t id = strtol10_64(t.begin(), &out, &length);
+    if (out > t.end()) {
+        err_out = "failed to parse Int64 (text)";
+        return 0L;
+    }
+
+    return id;
+}
+
+// ------------------------------------------------------------------------------------------------
+std::string ParseTokenAsString(const Token& t, const char*& err_out)
+{
+    err_out = NULL;
+
+    if (t.Type() != TokenType_DATA) {
+        err_out = "expected TOK_DATA token";
+        return "";
+    }
+
+    if(t.IsBinary())
+    {
+        const char* data = t.begin();
+        if (data[0] != 'S') {
+            err_out = "failed to parse S(tring), unexpected data type (binary)";
+            return "";
+        }
+
+        // read string length
+        BE_NCONST int32_t len = SafeParse<int32_t>(data+1, t.end());
+        AI_SWAP4(len);
+
+        ai_assert(t.end() - data == 5 + len);
+        return std::string(data + 5, len);
+    }
+
+    const size_t length = static_cast<size_t>(t.end() - t.begin());
+    if(length < 2) {
+        err_out = "token is too short to hold a string";
+        return "";
+    }
+
+    const char* s = t.begin(), *e = t.end() - 1;
+    if (*s != '\"' || *e != '\"') {
+        err_out = "expected double quoted string";
+        return "";
+    }
+
+    return std::string(s+1,length-2);
+}
+
+
+namespace {
+
+// ------------------------------------------------------------------------------------------------
+// read the type code and element count of a binary data array and stop there
+void ReadBinaryDataArrayHead(const char*& data, const char* end, char& type, uint32_t& count,
+    const Element& el)
+{
+    if (static_cast<size_t>(end-data) < 5) {
+        ParseError("binary data array is too short, need five (5) bytes for type signature and element count",&el);
+    }
+
+    // data type
+    type = *data;
+
+    // read number of elements
+    BE_NCONST uint32_t len = SafeParse<uint32_t>(data+1, end);
+    AI_SWAP4(len);
+
+    count = len;
+    data += 5;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read binary data array, assume cursor points to the 'compression mode' field (i.e. behind the header)
+void ReadBinaryDataArray(char type, uint32_t count, const char*& data, const char* end,
+    std::vector<char>& buff,
+    const Element& /*el*/)
+{
+    BE_NCONST uint32_t encmode = SafeParse<uint32_t>(data, end);
+    AI_SWAP4(encmode);
+    data += 4;
+
+    // next comes the compressed length
+    BE_NCONST uint32_t comp_len = SafeParse<uint32_t>(data, end);
+    AI_SWAP4(comp_len);
+    data += 4;
+
+    ai_assert(data + comp_len == end);
+
+    // determine the length of the uncompressed data by looking at the type signature
+    uint32_t stride = 0;
+    switch(type)
+    {
+        case 'f':
+        case 'i':
+            stride = 4;
+            break;
+
+        case 'd':
+        case 'l':
+            stride = 8;
+            break;
+
+        default:
+            ai_assert(false);
+    };
+
+    const uint32_t full_length = stride * count;
+    buff.resize(full_length);
+
+    if(encmode == 0) {
+        ai_assert(full_length == comp_len);
+
+        // plain data, no compression
+        std::copy(data, end, buff.begin());
+    }
+    else if(encmode == 1) {
+        // zlib/deflate, next comes ZIP head (0x78 0x01)
+        // see http://www.ietf.org/rfc/rfc1950.txt
+
+        z_stream zstream;
+        zstream.opaque = Z_NULL;
+        zstream.zalloc = Z_NULL;
+        zstream.zfree  = Z_NULL;
+        zstream.data_type = Z_BINARY;
+
+        // http://hewgill.com/journal/entries/349-how-to-decompress-gzip-stream-with-zlib
+        if(Z_OK != inflateInit(&zstream)) {
+            ParseError("failure initializing zlib");
+        }
+
+        zstream.next_in   = reinterpret_cast<Bytef*>( const_cast<char*>(data) );
+        zstream.avail_in  = comp_len;
+
+        zstream.avail_out = static_cast<uInt>(buff.size());
+        zstream.next_out = reinterpret_cast<Bytef*>(&*buff.begin());
+        const int ret = inflate(&zstream, Z_FINISH);
+
+        if (ret != Z_STREAM_END && ret != Z_OK) {
+            ParseError("failure decompressing compressed data section");
+        }
+
+        // terminate zlib
+        inflateEnd(&zstream);
+    }
+#ifdef ASSIMP_BUILD_DEBUG
+    else {
+        // runtime check for this happens at tokenization stage
+        ai_assert(false);
+    }
+#endif
+
+    data += comp_len;
+    ai_assert(data == end);
+}
+
+} // !anon
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of float3 tuples
+void ParseVectorDataArray(std::vector<aiVector3D>& out, const Element& el)
+{
+    out.resize( 0 );
+
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(count % 3 != 0) {
+            ParseError("number of floats is not a multiple of three (3) (binary)",&el);
+        }
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'd' && type != 'f') {
+            ParseError("expected float or double array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
+
+        const uint32_t count3 = count / 3;
+        out.reserve(count3);
+
+        if (type == 'd') {
+            const double* d = reinterpret_cast<const double*>(&buff[0]);
+            for (unsigned int i = 0; i < count3; ++i, d += 3) {
+                out.push_back(aiVector3D(static_cast<float>(d[0]),
+                    static_cast<float>(d[1]),
+                    static_cast<float>(d[2])));
+            }
+            // for debugging
+            /*for ( size_t i = 0; i < out.size(); i++ ) {
+                aiVector3D vec3( out[ i ] );
+                std::stringstream stream;
+                stream << " vec3.x = " << vec3.x << " vec3.y = " << vec3.y << " vec3.z = " << vec3.z << std::endl;
+                DefaultLogger::get()->info( stream.str() );
+            }*/
+        }
+        else if (type == 'f') {
+            const float* f = reinterpret_cast<const float*>(&buff[0]);
+            for (unsigned int i = 0; i < count3; ++i, f += 3) {
+                out.push_back(aiVector3D(f[0],f[1],f[2]));
+            }
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // may throw bad_alloc if the input is rubbish, but this need
+    // not to be prevented - importing would fail but we wouldn't
+    // crash since assimp handles this case properly.
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    if (a.Tokens().size() % 3 != 0) {
+        ParseError("number of floats is not a multiple of three (3)",&el);
+    }
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        aiVector3D v;
+        v.x = ParseTokenAsFloat(**it++);
+        v.y = ParseTokenAsFloat(**it++);
+        v.z = ParseTokenAsFloat(**it++);
+
+        out.push_back(v);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of color4 tuples
+void ParseVectorDataArray(std::vector<aiColor4D>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(count % 4 != 0) {
+            ParseError("number of floats is not a multiple of four (4) (binary)",&el);
+        }
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'd' && type != 'f') {
+            ParseError("expected float or double array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
+
+        const uint32_t count4 = count / 4;
+        out.reserve(count4);
+
+        if (type == 'd') {
+            const double* d = reinterpret_cast<const double*>(&buff[0]);
+            for (unsigned int i = 0; i < count4; ++i, d += 4) {
+                out.push_back(aiColor4D(static_cast<float>(d[0]),
+                    static_cast<float>(d[1]),
+                    static_cast<float>(d[2]),
+                    static_cast<float>(d[3])));
+            }
+        }
+        else if (type == 'f') {
+            const float* f = reinterpret_cast<const float*>(&buff[0]);
+            for (unsigned int i = 0; i < count4; ++i, f += 4) {
+                out.push_back(aiColor4D(f[0],f[1],f[2],f[3]));
+            }
+        }
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    //  see notes in ParseVectorDataArray() above
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    if (a.Tokens().size() % 4 != 0) {
+        ParseError("number of floats is not a multiple of four (4)",&el);
+    }
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        aiColor4D v;
+        v.r = ParseTokenAsFloat(**it++);
+        v.g = ParseTokenAsFloat(**it++);
+        v.b = ParseTokenAsFloat(**it++);
+        v.a = ParseTokenAsFloat(**it++);
+
+        out.push_back(v);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of float2 tuples
+void ParseVectorDataArray(std::vector<aiVector2D>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(count % 2 != 0) {
+            ParseError("number of floats is not a multiple of two (2) (binary)",&el);
+        }
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'd' && type != 'f') {
+            ParseError("expected float or double array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
+
+        const uint32_t count2 = count / 2;
+        out.reserve(count2);
+
+        if (type == 'd') {
+            const double* d = reinterpret_cast<const double*>(&buff[0]);
+            for (unsigned int i = 0; i < count2; ++i, d += 2) {
+                out.push_back(aiVector2D(static_cast<float>(d[0]),
+                    static_cast<float>(d[1])));
+            }
+        }
+        else if (type == 'f') {
+            const float* f = reinterpret_cast<const float*>(&buff[0]);
+            for (unsigned int i = 0; i < count2; ++i, f += 2) {
+                out.push_back(aiVector2D(f[0],f[1]));
+            }
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // see notes in ParseVectorDataArray() above
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    if (a.Tokens().size() % 2 != 0) {
+        ParseError("number of floats is not a multiple of two (2)",&el);
+    }
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        aiVector2D v;
+        v.x = ParseTokenAsFloat(**it++);
+        v.y = ParseTokenAsFloat(**it++);
+
+        out.push_back(v);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of ints
+void ParseVectorDataArray(std::vector<int>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'i') {
+            ParseError("expected int array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * 4);
+
+        out.reserve(count);
+
+        const int32_t* ip = reinterpret_cast<const int32_t*>(&buff[0]);
+        for (unsigned int i = 0; i < count; ++i, ++ip) {
+            BE_NCONST int32_t val = *ip;
+            AI_SWAP4(val);
+            out.push_back(val);
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // see notes in ParseVectorDataArray()
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        const int ival = ParseTokenAsInt(**it++);
+        out.push_back(ival);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of floats
+void ParseVectorDataArray(std::vector<float>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'd' && type != 'f') {
+            ParseError("expected float or double array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * (type == 'd' ? 8 : 4));
+
+        if (type == 'd') {
+            const double* d = reinterpret_cast<const double*>(&buff[0]);
+            for (unsigned int i = 0; i < count; ++i, ++d) {
+                out.push_back(static_cast<float>(*d));
+            }
+        }
+        else if (type == 'f') {
+            const float* f = reinterpret_cast<const float*>(&buff[0]);
+            for (unsigned int i = 0; i < count; ++i, ++f) {
+                out.push_back(*f);
+            }
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // see notes in ParseVectorDataArray()
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        const float ival = ParseTokenAsFloat(**it++);
+        out.push_back(ival);
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of uints
+void ParseVectorDataArray(std::vector<unsigned int>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'i') {
+            ParseError("expected (u)int array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * 4);
+
+        out.reserve(count);
+
+        const int32_t* ip = reinterpret_cast<const int32_t*>(&buff[0]);
+        for (unsigned int i = 0; i < count; ++i, ++ip) {
+            BE_NCONST int32_t val = *ip;
+            if(val < 0) {
+                ParseError("encountered negative integer index (binary)");
+            }
+
+            AI_SWAP4(val);
+            out.push_back(val);
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // see notes in ParseVectorDataArray()
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        const int ival = ParseTokenAsInt(**it++);
+        if(ival < 0) {
+            ParseError("encountered negative integer index");
+        }
+        out.push_back(static_cast<unsigned int>(ival));
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// read an array of uint64_ts
+void ParseVectorDataArray(std::vector<uint64_t>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if(tok.empty()) {
+        ParseError("unexpected empty element",&el);
+    }
+
+    if(tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if(!count) {
+            return;
+        }
+
+        if (type != 'l') {
+            ParseError("expected long array (binary)",&el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * 8);
+
+        out.reserve(count);
+
+        const uint64_t* ip = reinterpret_cast<const uint64_t*>(&buff[0]);
+        for (unsigned int i = 0; i < count; ++i, ++ip) {
+            BE_NCONST uint64_t val = *ip;
+            AI_SWAP8(val);
+            out.push_back(val);
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // see notes in ParseVectorDataArray()
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope,"a",&el);
+
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end; ) {
+        const uint64_t ival = ParseTokenAsID(**it++);
+
+        out.push_back(ival);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// read an array of int64_ts
+void ParseVectorDataArray(std::vector<int64_t>& out, const Element& el)
+{
+    out.resize( 0 );
+    const TokenList& tok = el.Tokens();
+    if (tok.empty()) {
+        ParseError("unexpected empty element", &el);
+    }
+
+    if (tok[0]->IsBinary()) {
+        const char* data = tok[0]->begin(), *end = tok[0]->end();
+
+        char type;
+        uint32_t count;
+        ReadBinaryDataArrayHead(data, end, type, count, el);
+
+        if (!count) {
+            return;
+        }
+
+        if (type != 'l') {
+            ParseError("expected long array (binary)", &el);
+        }
+
+        std::vector<char> buff;
+        ReadBinaryDataArray(type, count, data, end, buff, el);
+
+        ai_assert(data == end);
+        ai_assert(buff.size() == count * 8);
+
+        out.reserve(count);
+
+        const int64_t* ip = reinterpret_cast<const int64_t*>(&buff[0]);
+        for (unsigned int i = 0; i < count; ++i, ++ip) {
+            BE_NCONST int64_t val = *ip;
+            AI_SWAP8(val);
+            out.push_back(val);
+        }
+
+        return;
+    }
+
+    const size_t dim = ParseTokenAsDim(*tok[0]);
+
+    // see notes in ParseVectorDataArray()
+    out.reserve(dim);
+
+    const Scope& scope = GetRequiredScope(el);
+    const Element& a = GetRequiredElement(scope, "a", &el);
+
+    for (TokenList::const_iterator it = a.Tokens().begin(), end = a.Tokens().end(); it != end;) {
+        const int64_t ival = ParseTokenAsInt64(**it++);
+
+        out.push_back(ival);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+aiMatrix4x4 ReadMatrix(const Element& element)
+{
+    std::vector<float> values;
+    ParseVectorDataArray(values,element);
+
+    if(values.size() != 16) {
+        ParseError("expected 16 matrix elements");
+    }
+
+    aiMatrix4x4 result;
+
+
+    result.a1 = values[0];
+    result.a2 = values[1];
+    result.a3 = values[2];
+    result.a4 = values[3];
+
+    result.b1 = values[4];
+    result.b2 = values[5];
+    result.b3 = values[6];
+    result.b4 = values[7];
+
+    result.c1 = values[8];
+    result.c2 = values[9];
+    result.c3 = values[10];
+    result.c4 = values[11];
+
+    result.d1 = values[12];
+    result.d2 = values[13];
+    result.d3 = values[14];
+    result.d4 = values[15];
+
+    result.Transpose();
+    return result;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// wrapper around ParseTokenAsString() with ParseError handling
+std::string ParseTokenAsString(const Token& t)
+{
+    const char* err;
+    const std::string& i = ParseTokenAsString(t,err);
+    if(err) {
+        ParseError(err,t);
+    }
+    return i;
+}
+
+bool HasElement( const Scope& sc, const std::string& index ) {
+    const Element* el = sc[ index ];
+    if ( nullptr == el ) {
+        return false;
+    }
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// extract a required element from a scope, abort if the element cannot be found
+const Element& GetRequiredElement(const Scope& sc, const std::string& index, const Element* element /*= NULL*/)
+{
+    const Element* el = sc[index];
+    if(!el) {
+        ParseError("did not find required element \"" + index + "\"",element);
+    }
+    return *el;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// extract required compound scope
+const Scope& GetRequiredScope(const Element& el)
+{
+    const Scope* const s = el.Compound();
+    if(!s) {
+        ParseError("expected compound scope",&el);
+    }
+
+    return *s;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// get token at a particular index
+const Token& GetRequiredToken(const Element& el, unsigned int index)
+{
+    const TokenList& t = el.Tokens();
+    if(index >= t.size()) {
+        ParseError(Formatter::format( "missing token at index " ) << index,&el);
+    }
+
+    return *t[index];
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// wrapper around ParseTokenAsID() with ParseError handling
+uint64_t ParseTokenAsID(const Token& t)
+{
+    const char* err;
+    const uint64_t i = ParseTokenAsID(t,err);
+    if(err) {
+        ParseError(err,t);
+    }
+    return i;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// wrapper around ParseTokenAsDim() with ParseError handling
+size_t ParseTokenAsDim(const Token& t)
+{
+    const char* err;
+    const size_t i = ParseTokenAsDim(t,err);
+    if(err) {
+        ParseError(err,t);
+    }
+    return i;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// wrapper around ParseTokenAsFloat() with ParseError handling
+float ParseTokenAsFloat(const Token& t)
+{
+    const char* err;
+    const float i = ParseTokenAsFloat(t,err);
+    if(err) {
+        ParseError(err,t);
+    }
+    return i;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// wrapper around ParseTokenAsInt() with ParseError handling
+int ParseTokenAsInt(const Token& t)
+{
+    const char* err;
+    const int i = ParseTokenAsInt(t,err);
+    if(err) {
+        ParseError(err,t);
+    }
+    return i;
+}
+
+
+
+// ------------------------------------------------------------------------------------------------
+// wrapper around ParseTokenAsInt64() with ParseError handling
+int64_t ParseTokenAsInt64(const Token& t)
+{
+    const char* err;
+    const int64_t i = ParseTokenAsInt64(t, err);
+    if (err) {
+        ParseError(err, t);
+    }
+    return i;
+}
+
+} // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXParser.h b/thirdparty/assimp/code/FBXParser.h
new file mode 100644
index 0000000000..7b0cf72039
--- /dev/null
+++ b/thirdparty/assimp/code/FBXParser.h
@@ -0,0 +1,235 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXParser.h
+ *  @brief FBX parsing code
+ */
+#ifndef INCLUDED_AI_FBX_PARSER_H
+#define INCLUDED_AI_FBX_PARSER_H
+
+#include <stdint.h>
+#include <map>
+#include <memory>
+#include <assimp/LogAux.h>
+#include <assimp/fast_atof.h>
+
+#include "FBXCompileConfig.h"
+#include "FBXTokenizer.h"
+
+namespace Assimp {
+namespace FBX {
+
+class Scope;
+class Parser;
+class Element;
+
+// XXX should use C++11's unique_ptr - but assimp's need to keep working with 03
+typedef std::vector< Scope* > ScopeList;
+typedef std::fbx_unordered_multimap< std::string, Element* > ElementMap;
+
+typedef std::pair<ElementMap::const_iterator,ElementMap::const_iterator> ElementCollection;
+
+#   define new_Scope new Scope
+#   define new_Element new Element
+
+
+/** FBX data entity that consists of a key:value tuple.
+ *
+ *  Example:
+ *  @verbatim
+ *    AnimationCurve: 23, "AnimCurve::", "" {
+ *        [..]
+ *    }
+ *  @endverbatim
+ *
+ *  As can be seen in this sample, elements can contain nested #Scope
+ *  as their trailing member.  **/
+class Element
+{
+public:
+    Element(const Token& key_token, Parser& parser);
+    ~Element();
+
+    const Scope* Compound() const {
+        return compound.get();
+    }
+
+    const Token& KeyToken() const {
+        return key_token;
+    }
+
+    const TokenList& Tokens() const {
+        return tokens;
+    }
+
+private:
+    const Token& key_token;
+    TokenList tokens;
+    std::unique_ptr<Scope> compound;
+};
+
+/** FBX data entity that consists of a 'scope', a collection
+ *  of not necessarily unique #Element instances.
+ *
+ *  Example:
+ *  @verbatim
+ *    GlobalSettings:  {
+ *        Version: 1000
+ *        Properties70:
+ *        [...]
+ *    }
+ *  @endverbatim  */
+class Scope
+{
+public:
+    Scope(Parser& parser, bool topLevel = false);
+    ~Scope();
+
+    const Element* operator[] (const std::string& index) const {
+        ElementMap::const_iterator it = elements.find(index);
+        return it == elements.end() ? NULL : (*it).second;
+    }
+
+	const Element* FindElementCaseInsensitive(const std::string& elementName) const {
+		const char* elementNameCStr = elementName.c_str();
+		for (auto element = elements.begin(); element != elements.end(); ++element)
+		{
+			if (!ASSIMP_strincmp(element->first.c_str(), elementNameCStr, MAXLEN)) {
+				return element->second;
+			}
+		}
+		return NULL;
+	}
+
+    ElementCollection GetCollection(const std::string& index) const {
+        return elements.equal_range(index);
+    }
+
+    const ElementMap& Elements() const  {
+        return elements;
+    }
+
+private:
+    ElementMap elements;
+};
+
+/** FBX parsing class, takes a list of input tokens and generates a hierarchy
+ *  of nested #Scope instances, representing the fbx DOM.*/
+class Parser
+{
+public:
+    /** Parse given a token list. Does not take ownership of the tokens -
+     *  the objects must persist during the entire parser lifetime */
+    Parser (const TokenList& tokens,bool is_binary);
+    ~Parser();
+
+    const Scope& GetRootScope() const {
+        return *root.get();
+    }
+
+    bool IsBinary() const {
+        return is_binary;
+    }
+
+private:
+    friend class Scope;
+    friend class Element;
+
+    TokenPtr AdvanceToNextToken();
+    TokenPtr LastToken() const;
+    TokenPtr CurrentToken() const;
+
+private:
+    const TokenList& tokens;
+
+    TokenPtr last, current;
+    TokenList::const_iterator cursor;
+    std::unique_ptr<Scope> root;
+
+    const bool is_binary;
+};
+
+
+/* token parsing - this happens when building the DOM out of the parse-tree*/
+uint64_t ParseTokenAsID(const Token& t, const char*& err_out);
+size_t ParseTokenAsDim(const Token& t, const char*& err_out);
+
+float ParseTokenAsFloat(const Token& t, const char*& err_out);
+int ParseTokenAsInt(const Token& t, const char*& err_out);
+int64_t ParseTokenAsInt64(const Token& t, const char*& err_out);
+std::string ParseTokenAsString(const Token& t, const char*& err_out);
+
+/* wrapper around ParseTokenAsXXX() with DOMError handling */
+uint64_t ParseTokenAsID(const Token& t);
+size_t ParseTokenAsDim(const Token& t);
+float ParseTokenAsFloat(const Token& t);
+int ParseTokenAsInt(const Token& t);
+int64_t ParseTokenAsInt64(const Token& t);
+std::string ParseTokenAsString(const Token& t);
+
+/* read data arrays */
+void ParseVectorDataArray(std::vector<aiVector3D>& out, const Element& el);
+void ParseVectorDataArray(std::vector<aiColor4D>& out, const Element& el);
+void ParseVectorDataArray(std::vector<aiVector2D>& out, const Element& el);
+void ParseVectorDataArray(std::vector<int>& out, const Element& el);
+void ParseVectorDataArray(std::vector<float>& out, const Element& el);
+void ParseVectorDataArray(std::vector<unsigned int>& out, const Element& el);
+void ParseVectorDataArray(std::vector<uint64_t>& out, const Element& e);
+void ParseVectorDataArray(std::vector<int64_t>& out, const Element& el);
+
+bool HasElement( const Scope& sc, const std::string& index );
+
+// extract a required element from a scope, abort if the element cannot be found
+const Element& GetRequiredElement(const Scope& sc, const std::string& index, const Element* element = NULL);
+
+// extract required compound scope
+const Scope& GetRequiredScope(const Element& el);
+// get token at a particular index
+const Token& GetRequiredToken(const Element& el, unsigned int index);
+
+// read a 4x4 matrix from an array of 16 floats
+aiMatrix4x4 ReadMatrix(const Element& element);
+
+} // ! FBX
+} // ! Assimp
+
+#endif // ! INCLUDED_AI_FBX_PARSER_H
diff --git a/thirdparty/assimp/code/FBXProperties.cpp b/thirdparty/assimp/code/FBXProperties.cpp
new file mode 100644
index 0000000000..8d7036b6a9
--- /dev/null
+++ b/thirdparty/assimp/code/FBXProperties.cpp
@@ -0,0 +1,235 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXProperties.cpp
+ *  @brief Implementation of the FBX dynamic properties system
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXTokenizer.h"
+#include "FBXParser.h"
+#include "FBXDocument.h"
+#include "FBXDocumentUtil.h"
+#include "FBXProperties.h"
+
+namespace Assimp {
+namespace FBX {
+
+    using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+Property::Property()
+{
+}
+
+// ------------------------------------------------------------------------------------------------
+Property::~Property()
+{
+}
+
+namespace {
+
+// ------------------------------------------------------------------------------------------------
+// read a typed property out of a FBX element. The return value is NULL if the property cannot be read.
+Property* ReadTypedProperty(const Element& element)
+{
+    ai_assert(element.KeyToken().StringContents() == "P");
+
+    const TokenList& tok = element.Tokens();
+    ai_assert(tok.size() >= 5);
+
+    const std::string& s = ParseTokenAsString(*tok[1]);
+    const char* const cs = s.c_str();
+    if (!strcmp(cs,"KString")) {
+        return new TypedProperty<std::string>(ParseTokenAsString(*tok[4]));
+    }
+    else if (!strcmp(cs,"bool") || !strcmp(cs,"Bool")) {
+        return new TypedProperty<bool>(ParseTokenAsInt(*tok[4]) != 0);
+    }
+    else if (!strcmp(cs, "int") || !strcmp(cs, "Int") || !strcmp(cs, "enum") || !strcmp(cs, "Enum")) {
+        return new TypedProperty<int>(ParseTokenAsInt(*tok[4]));
+    }
+    else if (!strcmp(cs, "ULongLong")) {
+        return new TypedProperty<uint64_t>(ParseTokenAsID(*tok[4]));
+    }
+    else if (!strcmp(cs, "KTime")) {
+        return new TypedProperty<int64_t>(ParseTokenAsInt64(*tok[4]));
+    }
+    else if (!strcmp(cs,"Vector3D") ||
+        !strcmp(cs,"ColorRGB") ||
+        !strcmp(cs,"Vector") ||
+        !strcmp(cs,"Color") ||
+        !strcmp(cs,"Lcl Translation") ||
+        !strcmp(cs,"Lcl Rotation") ||
+        !strcmp(cs,"Lcl Scaling")
+        ) {
+        return new TypedProperty<aiVector3D>(aiVector3D(
+            ParseTokenAsFloat(*tok[4]),
+            ParseTokenAsFloat(*tok[5]),
+            ParseTokenAsFloat(*tok[6]))
+        );
+    }
+    else if (!strcmp(cs,"double") || !strcmp(cs,"Number") || !strcmp(cs,"Float") || !strcmp(cs,"FieldOfView") || !strcmp( cs, "UnitScaleFactor" ) ) {
+        return new TypedProperty<float>(ParseTokenAsFloat(*tok[4]));
+    }
+    return NULL;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// peek into an element and check if it contains a FBX property, if so return its name.
+std::string PeekPropertyName(const Element& element)
+{
+    ai_assert(element.KeyToken().StringContents() == "P");
+    const TokenList& tok = element.Tokens();
+    if(tok.size() < 4) {
+        return "";
+    }
+
+    return ParseTokenAsString(*tok[0]);
+}
+
+} //! anon
+
+
+// ------------------------------------------------------------------------------------------------
+PropertyTable::PropertyTable()
+: templateProps()
+, element()
+{
+}
+
+// ------------------------------------------------------------------------------------------------
+PropertyTable::PropertyTable(const Element& element, std::shared_ptr<const PropertyTable> templateProps)
+: templateProps(templateProps)
+, element(&element)
+{
+    const Scope& scope = GetRequiredScope(element);
+    for(const ElementMap::value_type& v : scope.Elements()) {
+        if(v.first != "P") {
+            DOMWarning("expected only P elements in property table",v.second);
+            continue;
+        }
+
+        const std::string& name = PeekPropertyName(*v.second);
+        if(!name.length()) {
+            DOMWarning("could not read property name",v.second);
+            continue;
+        }
+
+        LazyPropertyMap::const_iterator it = lazyProps.find(name);
+        if (it != lazyProps.end()) {
+            DOMWarning("duplicate property name, will hide previous value: " + name,v.second);
+            continue;
+        }
+
+        lazyProps[name] = v.second;
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+PropertyTable::~PropertyTable()
+{
+    for(PropertyMap::value_type& v : props) {
+        delete v.second;
+    }
+}
+
+
+// ------------------------------------------------------------------------------------------------
+const Property* PropertyTable::Get(const std::string& name) const
+{
+    PropertyMap::const_iterator it = props.find(name);
+    if (it == props.end()) {
+        // hasn't been parsed yet?
+        LazyPropertyMap::const_iterator lit = lazyProps.find(name);
+        if(lit != lazyProps.end()) {
+            props[name] = ReadTypedProperty(*(*lit).second);
+            it = props.find(name);
+
+            ai_assert(it != props.end());
+        }
+
+        if (it == props.end()) {
+            // check property template
+            if(templateProps) {
+                return templateProps->Get(name);
+            }
+
+            return NULL;
+        }
+    }
+
+    return (*it).second;
+}
+
+DirectPropertyMap PropertyTable::GetUnparsedProperties() const
+{
+    DirectPropertyMap result;
+
+    // Loop through all the lazy properties (which is all the properties)
+    for(const LazyPropertyMap::value_type& element : lazyProps) {
+
+        // Skip parsed properties
+        if (props.end() != props.find(element.first)) continue;
+
+        // Read the element's value.
+        // Wrap the naked pointer (since the call site is required to acquire ownership)
+        // std::unique_ptr from C++11 would be preferred both as a wrapper and a return value.
+        std::shared_ptr<Property> prop = std::shared_ptr<Property>(ReadTypedProperty(*element.second));
+
+        // Element could not be read. Skip it.
+        if (!prop) continue;
+
+        // Add to result
+        result[element.first] = prop;
+    }
+
+    return result;
+}
+
+} //! FBX
+} //! Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXProperties.h b/thirdparty/assimp/code/FBXProperties.h
new file mode 100644
index 0000000000..58755542fc
--- /dev/null
+++ b/thirdparty/assimp/code/FBXProperties.h
@@ -0,0 +1,185 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXProperties.h
+ *  @brief FBX dynamic properties
+ */
+#ifndef INCLUDED_AI_FBX_PROPERTIES_H
+#define INCLUDED_AI_FBX_PROPERTIES_H
+
+#include "FBXCompileConfig.h"
+#include <memory>
+#include <string>
+
+namespace Assimp {
+namespace FBX {
+
+// Forward declarations
+class Element;
+
+/** Represents a dynamic property. Type info added by deriving classes,
+ *  see #TypedProperty.
+ Example:
+ @verbatim
+   P: "ShininessExponent", "double", "Number", "",0.5
+ @endvebatim
+*/
+class Property {
+protected:
+    Property();
+
+public:
+    virtual ~Property();
+
+public:
+    template <typename T>
+    const T* As() const {
+        return dynamic_cast<const T*>(this);
+    }
+};
+
+template<typename T>
+class TypedProperty : public Property {
+public:
+    explicit TypedProperty(const T& value)
+    : value(value) {
+        // empty
+    }
+
+    const T& Value() const {
+        return value;
+    }
+
+private:
+    T value;
+};
+
+
+typedef std::fbx_unordered_map<std::string,std::shared_ptr<Property> > DirectPropertyMap;
+typedef std::fbx_unordered_map<std::string,const Property*>            PropertyMap;
+typedef std::fbx_unordered_map<std::string,const Element*>             LazyPropertyMap;
+
+/** 
+ *  Represents a property table as can be found in the newer FBX files (Properties60, Properties70)
+ */
+class PropertyTable {
+public:
+    // in-memory property table with no source element
+    PropertyTable();
+    PropertyTable(const Element& element, std::shared_ptr<const PropertyTable> templateProps);
+    ~PropertyTable();
+
+    const Property* Get(const std::string& name) const;
+
+    // PropertyTable's need not be coupled with FBX elements so this can be NULL
+    const Element* GetElement() const {
+        return element;
+    }
+
+    const PropertyTable* TemplateProps() const {
+        return templateProps.get();
+    }
+
+    DirectPropertyMap GetUnparsedProperties() const;
+
+private:
+    LazyPropertyMap lazyProps;
+    mutable PropertyMap props;
+    const std::shared_ptr<const PropertyTable> templateProps;
+    const Element* const element;
+};
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline 
+T PropertyGet(const PropertyTable& in, const std::string& name, const T& defaultValue) {
+    const Property* const prop = in.Get(name);
+    if( nullptr == prop) {
+        return defaultValue;
+    }
+
+    // strong typing, no need to be lenient
+    const TypedProperty<T>* const tprop = prop->As< TypedProperty<T> >();
+    if( nullptr == tprop) {
+        return defaultValue;
+    }
+
+    return tprop->Value();
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline 
+T PropertyGet(const PropertyTable& in, const std::string& name, bool& result, bool useTemplate=false ) {
+    const Property* prop = in.Get(name);
+    if( nullptr == prop) {
+        if ( ! useTemplate ) {
+            result = false;
+            return T();
+        }
+        const PropertyTable* templ = in.TemplateProps();
+        if ( nullptr == templ ) {
+            result = false;
+            return T();
+        }
+        prop = templ->Get(name);
+        if ( nullptr == prop ) {
+            result = false;
+            return T();
+        }
+    }
+
+    // strong typing, no need to be lenient
+    const TypedProperty<T>* const tprop = prop->As< TypedProperty<T> >();
+    if( nullptr == tprop) {
+        result = false;
+        return T();
+    }
+
+    result = true;
+    return tprop->Value();
+}
+
+} //! FBX
+} //! Assimp
+
+#endif // INCLUDED_AI_FBX_PROPERTIES_H
diff --git a/thirdparty/assimp/code/FBXTokenizer.cpp b/thirdparty/assimp/code/FBXTokenizer.cpp
new file mode 100644
index 0000000000..252cce3557
--- /dev/null
+++ b/thirdparty/assimp/code/FBXTokenizer.cpp
@@ -0,0 +1,248 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXTokenizer.cpp
+ *  @brief Implementation of the FBX broadphase lexer
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+// tab width for logging columns
+#define ASSIMP_FBX_TAB_WIDTH 4
+
+#include <assimp/ParsingUtils.h>
+
+#include "FBXTokenizer.h"
+#include "FBXUtil.h"
+#include <assimp/Exceptional.h>
+
+namespace Assimp {
+namespace FBX {
+
+// ------------------------------------------------------------------------------------------------
+Token::Token(const char* sbegin, const char* send, TokenType type, unsigned int line, unsigned int column)
+    :
+#ifdef DEBUG
+    contents(sbegin, static_cast<size_t>(send-sbegin)),
+#endif
+    sbegin(sbegin)
+    , send(send)
+    , type(type)
+    , line(line)
+    , column(column)
+{
+    ai_assert(sbegin);
+    ai_assert(send);
+
+    // tokens must be of non-zero length
+    ai_assert(static_cast<size_t>(send-sbegin) > 0);
+}
+
+// ------------------------------------------------------------------------------------------------
+Token::~Token()
+{
+}
+
+namespace {
+
+// ------------------------------------------------------------------------------------------------
+// signal tokenization error, this is always unrecoverable. Throws DeadlyImportError.
+AI_WONT_RETURN void TokenizeError(const std::string& message, unsigned int line, unsigned int column) AI_WONT_RETURN_SUFFIX;
+AI_WONT_RETURN void TokenizeError(const std::string& message, unsigned int line, unsigned int column)
+{
+    throw DeadlyImportError(Util::AddLineAndColumn("FBX-Tokenize",message,line,column));
+}
+
+
+// process a potential data token up to 'cur', adding it to 'output_tokens'.
+// ------------------------------------------------------------------------------------------------
+void ProcessDataToken( TokenList& output_tokens, const char*& start, const char*& end,
+                      unsigned int line,
+                      unsigned int column,
+                      TokenType type = TokenType_DATA,
+                      bool must_have_token = false)
+{
+    if (start && end) {
+        // sanity check:
+        // tokens should have no whitespace outside quoted text and [start,end] should
+        // properly delimit the valid range.
+        bool in_double_quotes = false;
+        for (const char* c = start; c != end + 1; ++c) {
+            if (*c == '\"') {
+                in_double_quotes = !in_double_quotes;
+            }
+
+            if (!in_double_quotes && IsSpaceOrNewLine(*c)) {
+                TokenizeError("unexpected whitespace in token", line, column);
+            }
+        }
+
+        if (in_double_quotes) {
+            TokenizeError("non-terminated double quotes", line, column);
+        }
+
+        output_tokens.push_back(new_Token(start,end + 1,type,line,column));
+    }
+    else if (must_have_token) {
+        TokenizeError("unexpected character, expected data token", line, column);
+    }
+
+    start = end = NULL;
+}
+
+}
+
+// ------------------------------------------------------------------------------------------------
+void Tokenize(TokenList& output_tokens, const char* input)
+{
+    ai_assert(input);
+
+    // line and column numbers numbers are one-based
+    unsigned int line = 1;
+    unsigned int column = 1;
+
+    bool comment = false;
+    bool in_double_quotes = false;
+    bool pending_data_token = false;
+
+    const char* token_begin = NULL, *token_end = NULL;
+    for (const char* cur = input;*cur;column += (*cur == '\t' ? ASSIMP_FBX_TAB_WIDTH : 1), ++cur) {
+        const char c = *cur;
+
+        if (IsLineEnd(c)) {
+            comment = false;
+
+            column = 0;
+            ++line;
+        }
+
+        if(comment) {
+            continue;
+        }
+
+        if(in_double_quotes) {
+            if (c == '\"') {
+                in_double_quotes = false;
+                token_end = cur;
+
+                ProcessDataToken(output_tokens,token_begin,token_end,line,column);
+                pending_data_token = false;
+            }
+            continue;
+        }
+
+        switch(c)
+        {
+        case '\"':
+            if (token_begin) {
+                TokenizeError("unexpected double-quote", line, column);
+            }
+            token_begin = cur;
+            in_double_quotes = true;
+            continue;
+
+        case ';':
+            ProcessDataToken(output_tokens,token_begin,token_end,line,column);
+            comment = true;
+            continue;
+
+        case '{':
+            ProcessDataToken(output_tokens,token_begin,token_end, line, column);
+            output_tokens.push_back(new_Token(cur,cur+1,TokenType_OPEN_BRACKET,line,column));
+            continue;
+
+        case '}':
+            ProcessDataToken(output_tokens,token_begin,token_end,line,column);
+            output_tokens.push_back(new_Token(cur,cur+1,TokenType_CLOSE_BRACKET,line,column));
+            continue;
+
+        case ',':
+            if (pending_data_token) {
+                ProcessDataToken(output_tokens,token_begin,token_end,line,column,TokenType_DATA,true);
+            }
+            output_tokens.push_back(new_Token(cur,cur+1,TokenType_COMMA,line,column));
+            continue;
+
+        case ':':
+            if (pending_data_token) {
+                ProcessDataToken(output_tokens,token_begin,token_end,line,column,TokenType_KEY,true);
+            }
+            else {
+                TokenizeError("unexpected colon", line, column);
+            }
+            continue;
+        }
+
+        if (IsSpaceOrNewLine(c)) {
+
+            if (token_begin) {
+                // peek ahead and check if the next token is a colon in which
+                // case this counts as KEY token.
+                TokenType type = TokenType_DATA;
+                for (const char* peek = cur;  *peek && IsSpaceOrNewLine(*peek); ++peek) {
+                    if (*peek == ':') {
+                        type = TokenType_KEY;
+                        cur = peek;
+                        break;
+                    }
+                }
+
+                ProcessDataToken(output_tokens,token_begin,token_end,line,column,type);
+            }
+
+            pending_data_token = false;
+        }
+        else {
+            token_end = cur;
+            if (!token_begin) {
+                token_begin = cur;
+            }
+
+            pending_data_token = true;
+        }
+    }
+}
+
+} // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXTokenizer.h b/thirdparty/assimp/code/FBXTokenizer.h
new file mode 100644
index 0000000000..2af29743f4
--- /dev/null
+++ b/thirdparty/assimp/code/FBXTokenizer.h
@@ -0,0 +1,187 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXTokenizer.h
+ *  @brief FBX lexer
+ */
+#ifndef INCLUDED_AI_FBX_TOKENIZER_H
+#define INCLUDED_AI_FBX_TOKENIZER_H
+
+#include "FBXCompileConfig.h"
+#include <assimp/ai_assert.h>
+#include <vector>
+#include <string>
+
+namespace Assimp {
+namespace FBX {
+
+/** Rough classification for text FBX tokens used for constructing the
+ *  basic scope hierarchy. */
+enum TokenType
+{
+    // {
+    TokenType_OPEN_BRACKET = 0,
+
+    // }
+    TokenType_CLOSE_BRACKET,
+
+    // '"blablubb"', '2', '*14' - very general token class,
+    // further processing happens at a later stage.
+    TokenType_DATA,
+
+    //
+    TokenType_BINARY_DATA,
+
+    // ,
+    TokenType_COMMA,
+
+    // blubb:
+    TokenType_KEY
+};
+
+
+/** Represents a single token in a FBX file. Tokens are
+ *  classified by the #TokenType enumerated types.
+ *
+ *  Offers iterator protocol. Tokens are immutable. */
+class Token
+{
+private:
+    static const unsigned int BINARY_MARKER = static_cast<unsigned int>(-1);
+
+public:
+    /** construct a textual token */
+    Token(const char* sbegin, const char* send, TokenType type, unsigned int line, unsigned int column);
+
+    /** construct a binary token */
+    Token(const char* sbegin, const char* send, TokenType type, unsigned int offset);
+
+    ~Token();
+
+public:
+    std::string StringContents() const {
+        return std::string(begin(),end());
+    }
+
+    bool IsBinary() const {
+        return column == BINARY_MARKER;
+    }
+
+    const char* begin() const {
+        return sbegin;
+    }
+
+    const char* end() const {
+        return send;
+    }
+
+    TokenType Type() const {
+        return type;
+    }
+
+    unsigned int Offset() const {
+        ai_assert(IsBinary());
+        return offset;
+    }
+
+    unsigned int Line() const {
+        ai_assert(!IsBinary());
+        return line;
+    }
+
+    unsigned int Column() const {
+        ai_assert(!IsBinary());
+        return column;
+    }
+
+private:
+
+#ifdef DEBUG
+    // full string copy for the sole purpose that it nicely appears
+    // in msvc's debugger window.
+    const std::string contents;
+#endif
+
+
+    const char* const sbegin;
+    const char* const send;
+    const TokenType type;
+
+    union {
+        const unsigned int line;
+        unsigned int offset;
+    };
+    const unsigned int column;
+};
+
+// XXX should use C++11's unique_ptr - but assimp's need to keep working with 03
+typedef const Token* TokenPtr;
+typedef std::vector< TokenPtr > TokenList;
+
+#define new_Token new Token
+
+
+/** Main FBX tokenizer function. Transform input buffer into a list of preprocessed tokens.
+ *
+ *  Skips over comments and generates line and column numbers.
+ *
+ * @param output_tokens Receives a list of all tokens in the input data.
+ * @param input_buffer Textual input buffer to be processed, 0-terminated.
+ * @throw DeadlyImportError if something goes wrong */
+void Tokenize(TokenList& output_tokens, const char* input);
+
+
+/** Tokenizer function for binary FBX files.
+ *
+ *  Emits a token list suitable for direct parsing.
+ *
+ * @param output_tokens Receives a list of all tokens in the input data.
+ * @param input_buffer Binary input buffer to be processed.
+ * @param length Length of input buffer, in bytes. There is no 0-terminal.
+ * @throw DeadlyImportError if something goes wrong */
+void TokenizeBinary(TokenList& output_tokens, const char* input, unsigned int length);
+
+
+} // ! FBX
+} // ! Assimp
+
+#endif // ! INCLUDED_AI_FBX_PARSER_H
diff --git a/thirdparty/assimp/code/FBXUtil.cpp b/thirdparty/assimp/code/FBXUtil.cpp
new file mode 100644
index 0000000000..fb483161b2
--- /dev/null
+++ b/thirdparty/assimp/code/FBXUtil.cpp
@@ -0,0 +1,164 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXUtil.cpp
+ *  @brief Implementation of internal FBX utility functions
+ */
+
+#include "FBXUtil.h"
+#include "FBXTokenizer.h"
+
+#include <assimp/TinyFormatter.h>
+#include <string>
+#include <cstring>
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+namespace Assimp {
+namespace FBX {
+namespace Util {
+
+// ------------------------------------------------------------------------------------------------
+const char* TokenTypeString(TokenType t)
+{
+    switch(t) {
+        case TokenType_OPEN_BRACKET:
+            return "TOK_OPEN_BRACKET";
+
+        case TokenType_CLOSE_BRACKET:
+            return "TOK_CLOSE_BRACKET";
+
+        case TokenType_DATA:
+            return "TOK_DATA";
+
+        case TokenType_COMMA:
+            return "TOK_COMMA";
+
+        case TokenType_KEY:
+            return "TOK_KEY";
+
+        case TokenType_BINARY_DATA:
+            return "TOK_BINARY_DATA";
+    }
+
+    ai_assert(false);
+    return "";
+}
+
+
+// ------------------------------------------------------------------------------------------------
+std::string AddOffset(const std::string& prefix, const std::string& text, unsigned int offset)
+{
+    return static_cast<std::string>( (Formatter::format() << prefix << " (offset 0x" << std::hex << offset << ") " << text) );
+}
+
+// ------------------------------------------------------------------------------------------------
+std::string AddLineAndColumn(const std::string& prefix, const std::string& text, unsigned int line, unsigned int column)
+{
+    return static_cast<std::string>( (Formatter::format() << prefix << " (line " << line << " <<  col " << column << ") " << text) );
+}
+
+// ------------------------------------------------------------------------------------------------
+std::string AddTokenText(const std::string& prefix, const std::string& text, const Token* tok)
+{
+    if(tok->IsBinary()) {
+        return static_cast<std::string>( (Formatter::format() << prefix <<
+            " (" << TokenTypeString(tok->Type()) <<
+            ", offset 0x" << std::hex << tok->Offset() << ") " <<
+            text) );
+    }
+
+    return static_cast<std::string>( (Formatter::format() << prefix <<
+        " (" << TokenTypeString(tok->Type()) <<
+        ", line " << tok->Line() <<
+        ", col " << tok->Column() << ") " <<
+        text) );
+}
+
+static const uint8_t base64DecodeTable[128] = {
+    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 62,  0,  0,  0, 63,
+    52, 53, 54, 55, 56, 57, 58, 59, 60, 61,  0,  0,  0, 64,  0,  0,
+    0,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
+    15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,  0,  0,  0,  0,  0,
+    0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+    41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,  0,  0,  0,  0,  0
+};
+
+uint8_t DecodeBase64(char ch)
+{
+    return base64DecodeTable[size_t(ch)];
+}
+
+size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out)
+{
+    if (inLength < 4) {
+        out = 0;
+        return 0;
+    }
+
+    const size_t outLength = (inLength * 3) / 4;
+    out = new uint8_t[outLength];
+    memset(out, 0, outLength);
+
+    size_t i = 0;
+    size_t j = 0;
+    for (i = 0; i < inLength - 4; i += 4)
+    {
+        uint8_t b0 = Util::DecodeBase64(in[i]);
+        uint8_t b1 = Util::DecodeBase64(in[i + 1]);
+        uint8_t b2 = Util::DecodeBase64(in[i + 2]);
+        uint8_t b3 = Util::DecodeBase64(in[i + 3]);
+
+        out[j++] = (uint8_t)((b0 << 2) | (b1 >> 4));
+        out[j++] = (uint8_t)((b1 << 4) | (b2 >> 2));
+        out[j++] = (uint8_t)((b2 << 6) | b3);
+    }
+    return outLength;
+}
+
+} // !Util
+} // !FBX
+} // !Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/FBXUtil.h b/thirdparty/assimp/code/FBXUtil.h
new file mode 100644
index 0000000000..6890e015ba
--- /dev/null
+++ b/thirdparty/assimp/code/FBXUtil.h
@@ -0,0 +1,120 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FBXUtil.h
+ *  @brief FBX utility functions for internal use
+ */
+#ifndef INCLUDED_AI_FBX_UTIL_H
+#define INCLUDED_AI_FBX_UTIL_H
+
+#include "FBXCompileConfig.h"
+#include "FBXTokenizer.h"
+#include <stdint.h>
+
+namespace Assimp {
+namespace FBX {
+
+
+namespace Util {
+
+
+/** helper for std::for_each to delete all heap-allocated items in a container */
+template<typename T>
+struct delete_fun
+{
+    void operator()(const volatile T* del) {
+        delete del;
+    }
+};
+
+/** Get a string representation for a #TokenType. */
+const char* TokenTypeString(TokenType t);
+
+
+
+/** Format log/error messages using a given offset in the source binary file
+ *
+ *  @param prefix Message prefix to be preprended to the location info.
+ *  @param text Message text
+ *  @param line Line index, 1-based
+ *  @param column Column index, 1-based
+ *  @return A string of the following format: {prefix} (offset 0x{offset}) {text}*/
+std::string AddOffset(const std::string& prefix, const std::string& text, unsigned int offset);
+
+
+/** Format log/error messages using a given line location in the source file.
+ *
+ *  @param prefix Message prefix to be preprended to the location info.
+ *  @param text Message text
+ *  @param line Line index, 1-based
+ *  @param column Column index, 1-based
+ *  @return A string of the following format: {prefix} (line {line}, col {column}) {text}*/
+std::string AddLineAndColumn(const std::string& prefix, const std::string& text, unsigned int line, unsigned int column);
+
+
+/** Format log/error messages using a given cursor token.
+ *
+ *  @param prefix Message prefix to be preprended to the location info.
+ *  @param text Message text
+ *  @param tok Token where parsing/processing stopped
+ *  @return A string of the following format: {prefix} ({token-type}, line {line}, col {column}) {text}*/
+std::string AddTokenText(const std::string& prefix, const std::string& text, const Token* tok);
+
+/** Decode a single Base64-encoded character.
+*
+*  @param ch Character to decode (from base64 to binary).
+*  @return decoded byte value*/
+uint8_t DecodeBase64(char ch);
+
+/** Decode a Base64-encoded string
+*
+*  @param in Characters to decode.
+*  @param inLength Number of characters to decode.
+*  @param out Reference to pointer where we will store the decoded data.
+*  @return size of the decoded data (number of bytes)*/
+size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out);
+
+}
+}
+}
+
+#endif // ! INCLUDED_AI_FBX_UTIL_H
diff --git a/thirdparty/assimp/code/FIReader.cpp b/thirdparty/assimp/code/FIReader.cpp
new file mode 100644
index 0000000000..2116316ca3
--- /dev/null
+++ b/thirdparty/assimp/code/FIReader.cpp
@@ -0,0 +1,1834 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+/// \file   FIReader.cpp
+/// \brief  Reader for Fast Infoset encoded binary XML files.
+/// \date   2017
+/// \author Patrick Daehne
+
+#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER
+
+#include "FIReader.hpp"
+#include <assimp/StringUtils.h>
+
+// Workaround for issue #1361
+// https://github.com/assimp/assimp/issues/1361
+#ifdef __ANDROID__
+#  define _GLIBCXX_USE_C99 1
+#endif
+
+#include <assimp/Exceptional.h>
+#include <assimp/IOStream.hpp>
+#include <assimp/types.h>
+#include <assimp/MemoryIOWrapper.h>
+#include <assimp/irrXMLWrapper.h>
+#include "../contrib/utf8cpp/source/utf8.h"
+#include <assimp/fast_atof.h>
+#include <stack>
+#include <map>
+#include <iostream>
+#include <sstream>
+#include <iomanip>
+
+namespace Assimp {
+
+static const std::string parseErrorMessage = "Fast Infoset parse error";
+
+static const char *xmlDeclarations[] = {
+    "<?xml encoding='finf'?>",
+    "<?xml encoding='finf' standalone='yes'?>",
+    "<?xml encoding='finf' standalone='no'?>",
+    "<?xml version='1.0' encoding='finf'?>",
+    "<?xml version='1.0' encoding='finf' standalone='yes'?>",
+    "<?xml version='1.0' encoding='finf' standalone='no'?>",
+    "<?xml version='1.1' encoding='finf'?>",
+    "<?xml version='1.1' encoding='finf' standalone='yes'?>",
+    "<?xml version='1.1' encoding='finf' standalone='no'?>"
+};
+
+static size_t parseMagic(const uint8_t *data, const uint8_t *dataEnd) {
+    if (dataEnd - data < 4) {
+        return 0;
+    }
+    uint32_t magic = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+    switch (magic) {
+    case 0xe0000001:
+        return 4;
+    case 0x3c3f786d: // "<?xm"
+        {
+            size_t xmlDeclarationsLength = sizeof(xmlDeclarations) / sizeof(xmlDeclarations[0]);
+            for (size_t i = 0; i < xmlDeclarationsLength; ++i) {
+                auto xmlDeclaration = xmlDeclarations[i];
+                ptrdiff_t xmlDeclarationLength = strlen(xmlDeclaration);
+                if ((dataEnd - data >= xmlDeclarationLength) && (memcmp(xmlDeclaration, data, xmlDeclarationLength) == 0)) {
+                    data += xmlDeclarationLength;
+                    if (dataEnd - data < 4) {
+                        return 0;
+                    }
+                    magic = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+                    return magic == 0xe0000001 ? xmlDeclarationLength + 4 : 0;
+                }
+            }
+            return 0;
+        }
+    default:
+        return 0;
+    }
+}
+
+static std::string parseUTF8String(const uint8_t *data, size_t len) {
+    return std::string((char*)data, len);
+}
+
+static std::string parseUTF16String(const uint8_t *data, size_t len) {
+    if (len & 1) {
+        throw DeadlyImportError(parseErrorMessage);
+    }
+    size_t numShorts = len / 2;
+    std::vector<short> utf16;
+    utf16.reserve(numShorts);
+    for (size_t i = 0; i < numShorts; ++i) {
+        short v = (data[0] << 8) | data[1];
+        utf16.push_back(v);
+        data += 2;
+    }
+    std::string result;
+    utf8::utf16to8(utf16.begin(), utf16.end(), back_inserter(result));
+    return result;
+}
+
+struct FIStringValueImpl: public FIStringValue {
+    inline FIStringValueImpl(std::string &&value_) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ { return value; }
+};
+
+std::shared_ptr<FIStringValue> FIStringValue::create(std::string &&value) {
+    return std::make_shared<FIStringValueImpl>(std::move(value));
+}
+
+struct FIHexValueImpl: public FIHexValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIHexValueImpl(std::vector<uint8_t> &&value_):  strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            os << std::hex << std::uppercase << std::setfill('0');
+            std::for_each(value.begin(), value.end(), [&](uint8_t c) { os << std::setw(2) << static_cast<int>(c); });
+            strValue = os.str();
+        }
+        return strValue;
+    };
+};
+
+std::shared_ptr<FIHexValue> FIHexValue::create(std::vector<uint8_t> &&value) {
+    return std::make_shared<FIHexValueImpl>(std::move(value));
+}
+
+struct FIBase64ValueImpl: public FIBase64Value {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIBase64ValueImpl(std::vector<uint8_t> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            uint8_t c1 = 0, c2;
+            int imod3 = 0;
+            std::vector<uint8_t>::size_type valueSize = value.size();
+            for (std::vector<uint8_t>::size_type i = 0; i < valueSize; ++i) {
+                c2 = value[i];
+                switch (imod3) {
+                case 0:
+                    os << basis_64[c2 >> 2];
+                    imod3 = 1;
+                    break;
+                case 1:
+                    os << basis_64[((c1 & 0x03) << 4) | ((c2 & 0xf0) >> 4)];
+                    imod3 = 2;
+                    break;
+                case 2:
+                    os << basis_64[((c1 & 0x0f) << 2) | ((c2 & 0xc0) >> 6)] << basis_64[c2 & 0x3f];
+                    imod3 = 0;
+                    break;
+                }
+                c1 = c2;
+            }
+            switch (imod3) {
+            case 1:
+                os << basis_64[(c1 & 0x03) << 4] << "==";
+                break;
+            case 2:
+                os << basis_64[(c1 & 0x0f) << 2] << '=';
+                break;
+            }
+            strValue = os.str();
+        }
+        return strValue;
+    };
+    static const char basis_64[];
+};
+
+const char FIBase64ValueImpl::basis_64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+std::shared_ptr<FIBase64Value> FIBase64Value::create(std::vector<uint8_t> &&value) {
+    return std::make_shared<FIBase64ValueImpl>(std::move(value));
+}
+
+struct FIShortValueImpl: public FIShortValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIShortValueImpl(std::vector<int16_t> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            int n = 0;
+            std::for_each(value.begin(), value.end(), [&](int16_t s) { if (++n > 1) os << ' '; os << s; });
+            strValue = os.str();
+        }
+        return strValue;
+    }
+};
+
+std::shared_ptr<FIShortValue> FIShortValue::create(std::vector<int16_t> &&value) {
+    return std::make_shared<FIShortValueImpl>(std::move(value));
+}
+
+struct FIIntValueImpl: public FIIntValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIIntValueImpl(std::vector<int32_t> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            int n = 0;
+            std::for_each(value.begin(), value.end(), [&](int32_t i) { if (++n > 1) os << ' '; os << i; });
+            strValue = os.str();
+        }
+        return strValue;
+    };
+};
+
+std::shared_ptr<FIIntValue> FIIntValue::create(std::vector<int32_t> &&value) {
+    return std::make_shared<FIIntValueImpl>(std::move(value));
+}
+
+struct FILongValueImpl: public FILongValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FILongValueImpl(std::vector<int64_t> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            int n = 0;
+            std::for_each(value.begin(), value.end(), [&](int64_t l) { if (++n > 1) os << ' '; os << l; });
+            strValue = os.str();
+        }
+        return strValue;
+    };
+};
+
+std::shared_ptr<FILongValue> FILongValue::create(std::vector<int64_t> &&value) {
+    return std::make_shared<FILongValueImpl>(std::move(value));
+}
+
+struct FIBoolValueImpl: public FIBoolValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIBoolValueImpl(std::vector<bool> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            os << std::boolalpha;
+            int n = 0;
+            std::for_each(value.begin(), value.end(), [&](bool b) { if (++n > 1) os << ' '; os << b; });
+            strValue = os.str();
+        }
+        return strValue;
+    };
+};
+
+std::shared_ptr<FIBoolValue> FIBoolValue::create(std::vector<bool> &&value) {
+    return std::make_shared<FIBoolValueImpl>(std::move(value));
+}
+
+struct FIFloatValueImpl: public FIFloatValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIFloatValueImpl(std::vector<float> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            int n = 0;
+            std::for_each(value.begin(), value.end(), [&](float f) { if (++n > 1) os << ' '; os << f; });
+            strValue = os.str();
+        }
+        return strValue;
+    }
+};
+
+std::shared_ptr<FIFloatValue> FIFloatValue::create(std::vector<float> &&value) {
+    return std::make_shared<FIFloatValueImpl>(std::move(value));
+}
+
+struct FIDoubleValueImpl: public FIDoubleValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIDoubleValueImpl(std::vector<double> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            int n = 0;
+            std::for_each(value.begin(), value.end(), [&](double d) { if (++n > 1) os << ' '; os << d; });
+            strValue = os.str();
+        }
+        return strValue;
+    }
+};
+
+std::shared_ptr<FIDoubleValue> FIDoubleValue::create(std::vector<double> &&value) {
+    return std::make_shared<FIDoubleValueImpl>(std::move(value));
+}
+
+struct FIUUIDValueImpl: public FIUUIDValue {
+    mutable std::string strValue;
+    mutable bool strValueValid;
+    inline FIUUIDValueImpl(std::vector<uint8_t> &&value_): strValueValid(false) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ {
+        if (!strValueValid) {
+            strValueValid = true;
+            std::ostringstream os;
+            os << std::hex << std::uppercase << std::setfill('0');
+            std::vector<uint8_t>::size_type valueSize = value.size();
+            for (std::vector<uint8_t>::size_type i = 0; i < valueSize; ++i) {
+                switch (i & 15) {
+                case 0:
+                    if (i > 0) {
+                        os << ' ';
+                    }
+                    os << std::setw(2) << static_cast<int>(value[i]);
+                    break;
+                case 4:
+                case 6:
+                case 8:
+                case 10:
+                    os << '-';
+                    // intentionally fall through!
+                case 1:
+                case 2:
+                case 3:
+                case 5:
+                case 7:
+                case 9:
+                case 11:
+                case 12:
+                case 13:
+                case 14:
+                case 15:
+                    os << std::setw(2) << static_cast<int>(value[i]);
+                    break;
+                }
+            }
+            strValue = os.str();
+        }
+        return strValue;
+    };
+};
+
+std::shared_ptr<FIUUIDValue> FIUUIDValue::create(std::vector<uint8_t> &&value) {
+    return std::make_shared<FIUUIDValueImpl>(std::move(value));
+}
+
+struct FICDATAValueImpl: public FICDATAValue {
+    inline FICDATAValueImpl(std::string &&value_) { value = std::move(value_); }
+    virtual const std::string &toString() const /*override*/ { return value; }
+};
+
+std::shared_ptr<FICDATAValue> FICDATAValue::create(std::string &&value) {
+    return std::make_shared<FICDATAValueImpl>(std::move(value));
+}
+
+struct FIHexDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        return FIHexValue::create(std::vector<uint8_t>(data, data + len));
+    }
+};
+
+struct FIBase64Decoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        return FIBase64Value::create(std::vector<uint8_t>(data, data + len));
+    }
+};
+
+struct FIShortDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len & 1) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::vector<int16_t> value;
+        size_t numShorts = len / 2;
+        value.reserve(numShorts);
+        for (size_t i = 0; i < numShorts; ++i) {
+            int16_t v = (data[0] << 8) | data[1];
+            value.push_back(v);
+            data += 2;
+        }
+        return FIShortValue::create(std::move(value));
+    }
+};
+
+struct FIIntDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len & 3) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::vector<int32_t> value;
+        size_t numInts = len / 4;
+        value.reserve(numInts);
+        for (size_t i = 0; i < numInts; ++i) {
+            int32_t v = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+            value.push_back(v);
+            data += 4;
+        }
+        return FIIntValue::create(std::move(value));
+    }
+};
+
+struct FILongDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len & 7) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::vector<int64_t> value;
+        size_t numLongs = len / 8;
+        value.reserve(numLongs);
+        for (size_t i = 0; i < numLongs; ++i) {
+            int64_t b0 = data[0], b1 = data[1], b2 = data[2], b3 = data[3], b4 = data[4], b5 = data[5], b6 = data[6], b7 = data[7];
+            int64_t v = (b0 << 56) | (b1 << 48) | (b2 << 40) | (b3 << 32) | (b4 << 24) | (b5 << 16) | (b6 << 8) | b7;
+            value.push_back(v);
+            data += 8;
+        }
+        return FILongValue::create(std::move(value));
+    }
+};
+
+struct FIBoolDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len < 1) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::vector<bool> value;
+        uint8_t b = *data++;
+        size_t unusedBits = b >> 4;
+        size_t numBools = (len * 8) - 4 - unusedBits;
+        value.reserve(numBools);
+        uint8_t mask = 1 << 3;
+        for (size_t i = 0; i < numBools; ++i) {
+            if (!mask) {
+                mask = 1 << 7;
+                b = *data++;
+            }
+            value.push_back((b & mask) != 0);
+        }
+        return FIBoolValue::create(std::move(value));
+    }
+};
+
+struct FIFloatDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len & 3) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::vector<float> value;
+        size_t numFloats = len / 4;
+        value.reserve(numFloats);
+        for (size_t i = 0; i < numFloats; ++i) {
+            int v = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+            float f;
+            memcpy(&f, &v, 4);
+            value.push_back(f);
+            data += 4;
+        }
+        return FIFloatValue::create(std::move(value));
+    }
+};
+
+struct FIDoubleDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len & 7) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::vector<double> value;
+        size_t numDoubles = len / 8;
+        value.reserve(numDoubles);
+        for (size_t i = 0; i < numDoubles; ++i) {
+            long long b0 = data[0], b1 = data[1], b2 = data[2], b3 = data[3], b4 = data[4], b5 = data[5], b6 = data[6], b7 = data[7];
+            long long v = (b0 << 56) | (b1 << 48) | (b2 << 40) | (b3 << 32) | (b4 << 24) | (b5 << 16) | (b6 << 8) | b7;
+            double f;
+            memcpy(&f, &v, 8);
+            value.push_back(f);
+            data += 8;
+        }
+        return FIDoubleValue::create(std::move(value));
+    }
+};
+
+struct FIUUIDDecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        if (len & 15) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        return FIUUIDValue::create(std::vector<uint8_t>(data, data + len));
+    }
+};
+
+struct FICDATADecoder: public FIDecoder {
+    virtual std::shared_ptr<const FIValue> decode(const uint8_t *data, size_t len) /*override*/ {
+        return FICDATAValue::create(parseUTF8String(data, len));
+    }
+};
+
+class CFIReaderImpl: public FIReader {
+public:
+
+    CFIReaderImpl(std::unique_ptr<uint8_t[]> data_, size_t size):
+    data(std::move(data_)), dataP(data.get()), dataEnd(data.get() + size), currentNodeType(irr::io::EXN_NONE),
+    emptyElement(false), headerPending(true), terminatorPending(false)
+    {}
+
+    virtual ~CFIReaderImpl() {}
+
+    virtual bool read() /*override*/ {
+        if (headerPending) {
+            headerPending = false;
+            parseHeader();
+        }
+        if (terminatorPending) {
+            terminatorPending = false;
+            if (elementStack.empty()) {
+                return false;
+            }
+            else {
+                nodeName = elementStack.top();
+                elementStack.pop();
+                currentNodeType = nodeName.empty() ? irr::io::EXN_UNKNOWN : irr::io::EXN_ELEMENT_END;
+                return true;
+            }
+        }
+        if (dataP >= dataEnd) {
+            return false;
+        }
+        uint8_t b = *dataP;
+        if (b < 0x80) { // Element (C.2.11.2, C.3.7.2)
+            // C.3
+            parseElement();
+            return true;
+        }
+        else if (b < 0xc0) { // Characters (C.3.7.5)
+            // C.7
+            auto chars = parseNonIdentifyingStringOrIndex3(vocabulary.charactersTable);
+            nodeName = chars->toString();
+            currentNodeType = irr::io::EXN_TEXT;
+            return true;
+        }
+        else if (b < 0xe0) {
+            if ((b & 0xfc) == 0xc4) { // DTD (C.2.11.5)
+                // C.9
+                ++dataP;
+                if (b & 0x02) {
+                    /*const std::string &systemID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+                if (b & 0x01) {
+                    /*const std::string &publicID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+                elementStack.push(EmptyString);
+                currentNodeType = irr::io::EXN_UNKNOWN;
+                return true;
+            }
+            else if ((b & 0xfc) == 0xc8) { // Unexpanded entity reference (C.3.7.4)
+                // C.6
+                ++dataP;
+                /*const std::string &name =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
+                if (b & 0x02) {
+                    /*const std::string &systemID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+                if (b & 0x01) {
+                    /*const std::string &publicID =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+                currentNodeType = irr::io::EXN_UNKNOWN;
+                return true;
+            }
+        }
+        else if (b < 0xf0) {
+            if (b == 0xe1) { // Processing instruction (C.2.11.3, C.3.7.3)
+                // C.5
+                ++dataP;
+                /*const std::string &target =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                /*std::shared_ptr<const FIValue> data =*/ parseNonIdentifyingStringOrIndex1(vocabulary.otherStringTable);
+                currentNodeType = irr::io::EXN_UNKNOWN;
+                return true;
+            }
+            else if (b == 0xe2) { // Comment (C.2.11.4, C.3.7.6)
+                // C.8
+                ++dataP;
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                std::shared_ptr<const FIValue> comment = parseNonIdentifyingStringOrIndex1(vocabulary.otherStringTable);
+                nodeName = comment->toString();
+                currentNodeType = irr::io::EXN_COMMENT;
+                return true;
+            }
+        }
+        else { // Terminator (C.2.12, C.3.8)
+            ++dataP;
+            if (b == 0xff) {
+                terminatorPending = true;
+            }
+            if (elementStack.empty()) {
+                return false;
+            }
+            else {
+                nodeName = elementStack.top();
+                elementStack.pop();
+                currentNodeType = nodeName.empty() ? irr::io::EXN_UNKNOWN : irr::io::EXN_ELEMENT_END;
+                return true;
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    virtual irr::io::EXML_NODE getNodeType() const /*override*/ {
+        return currentNodeType;
+    }
+
+    virtual int getAttributeCount() const /*override*/ {
+        return static_cast<int>(attributes.size());
+    }
+
+    virtual const char* getAttributeName(int idx) const /*override*/ {
+        if (idx < 0 || idx >= (int)attributes.size()) {
+            return nullptr;
+        }
+        return attributes[idx].name.c_str();
+    }
+
+    virtual const char* getAttributeValue(int idx) const /*override*/ {
+        if (idx < 0 || idx >= (int)attributes.size()) {
+            return nullptr;
+        }
+        return attributes[idx].value->toString().c_str();
+    }
+
+    virtual const char* getAttributeValue(const char* name) const /*override*/ {
+        const Attribute* attr = getAttributeByName(name);
+        if (!attr) {
+            return nullptr;
+        }
+        return attr->value->toString().c_str();
+    }
+
+    virtual const char* getAttributeValueSafe(const char* name) const /*override*/ {
+        const Attribute* attr = getAttributeByName(name);
+        if (!attr) {
+            return EmptyString.c_str();
+        }
+        return attr->value->toString().c_str();
+    }
+
+    virtual int getAttributeValueAsInt(const char* name) const /*override*/ {
+        const Attribute* attr = getAttributeByName(name);
+        if (!attr) {
+            return 0;
+        }
+        std::shared_ptr<const FIIntValue> intValue = std::dynamic_pointer_cast<const FIIntValue>(attr->value);
+        if (intValue) {
+            return intValue->value.size() == 1 ? intValue->value.front() : 0;
+        }
+        return atoi(attr->value->toString().c_str());
+    }
+
+    virtual int getAttributeValueAsInt(int idx) const /*override*/ {
+        if (idx < 0 || idx >= (int)attributes.size()) {
+            return 0;
+        }
+        std::shared_ptr<const FIIntValue> intValue = std::dynamic_pointer_cast<const FIIntValue>(attributes[idx].value);
+        if (intValue) {
+            return intValue->value.size() == 1 ? intValue->value.front() : 0;
+        }
+        return atoi(attributes[idx].value->toString().c_str());
+    }
+
+    virtual float getAttributeValueAsFloat(const char* name) const /*override*/ {
+        const Attribute* attr = getAttributeByName(name);
+        if (!attr) {
+            return 0;
+        }
+        std::shared_ptr<const FIFloatValue> floatValue = std::dynamic_pointer_cast<const FIFloatValue>(attr->value);
+        if (floatValue) {
+            return floatValue->value.size() == 1 ? floatValue->value.front() : 0;
+        }
+
+        return fast_atof(attr->value->toString().c_str());
+    }
+
+    virtual float getAttributeValueAsFloat(int idx) const /*override*/ {
+        if (idx < 0 || idx >= (int)attributes.size()) {
+            return 0;
+        }
+        std::shared_ptr<const FIFloatValue> floatValue = std::dynamic_pointer_cast<const FIFloatValue>(attributes[idx].value);
+        if (floatValue) {
+            return floatValue->value.size() == 1 ? floatValue->value.front() : 0;
+        }
+        return fast_atof(attributes[idx].value->toString().c_str());
+    }
+
+    virtual const char* getNodeName() const /*override*/ {
+        return nodeName.c_str();
+    }
+
+    virtual const char* getNodeData() const /*override*/ {
+        return nodeName.c_str();
+    }
+
+    virtual bool isEmptyElement() const /*override*/ {
+        return emptyElement;
+    }
+
+    virtual irr::io::ETEXT_FORMAT getSourceFormat() const /*override*/ {
+        return irr::io::ETF_UTF8;
+    }
+
+    virtual irr::io::ETEXT_FORMAT getParserFormat() const /*override*/ {
+        return irr::io::ETF_UTF8;
+    }
+
+    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(int idx) const /*override*/ {
+        if (idx < 0 || idx >= (int)attributes.size()) {
+            return nullptr;
+        }
+        return attributes[idx].value;
+    }
+
+    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(const char* name) const /*override*/ {
+        const Attribute* attr = getAttributeByName(name);
+        if (!attr) {
+            return nullptr;
+        }
+        return attr->value;
+    }
+
+    virtual void registerDecoder(const std::string &algorithmUri, std::unique_ptr<FIDecoder> decoder) /*override*/ {
+        decoderMap[algorithmUri] = std::move(decoder);
+    }
+
+    virtual void registerVocabulary(const std::string &vocabularyUri, const FIVocabulary *vocabulary) /*override*/ {
+        vocabularyMap[vocabularyUri] = vocabulary;
+    }
+
+private:
+
+    struct QName {
+        std::string prefix;
+        std::string uri;
+        std::string name;
+        inline QName() {}
+        inline QName(const FIQName &qname): prefix(qname.prefix ? qname.prefix : ""), uri(qname.uri ? qname.uri : ""), name(qname.name) {}
+    };
+
+    struct Attribute {
+        QName qname;
+        std::string name;
+        std::shared_ptr<const FIValue> value;
+    };
+
+    struct Vocabulary {
+        std::vector<std::string> restrictedAlphabetTable;
+        std::vector<std::string> encodingAlgorithmTable;
+        std::vector<std::string> prefixTable;
+        std::vector<std::string> namespaceNameTable;
+        std::vector<std::string> localNameTable;
+        std::vector<std::string> otherNCNameTable;
+        std::vector<std::string> otherURITable;
+        std::vector<std::shared_ptr<const FIValue>> attributeValueTable;
+        std::vector<std::shared_ptr<const FIValue>> charactersTable;
+        std::vector<std::shared_ptr<const FIValue>> otherStringTable;
+        std::vector<QName> elementNameTable;
+        std::vector<QName> attributeNameTable;
+        Vocabulary() {
+            prefixTable.push_back("xml");
+            namespaceNameTable.push_back("http://www.w3.org/XML/1998/namespace");
+        }
+    };
+
+    const Attribute* getAttributeByName(const char* name) const {
+        if (!name) {
+            return 0;
+        }
+        std::string n = name;
+        for (int i=0; i<(int)attributes.size(); ++i) {
+            if (attributes[i].name == n) {
+                return &attributes[i];
+            }
+        }
+        return 0;
+    }
+
+    size_t parseInt2() { // C.25
+        uint8_t b = *dataP++;
+        if (!(b & 0x40)) { // x0...... (C.25.2)
+            return b & 0x3f;
+        }
+        else if ((b & 0x60) == 0x40) { // x10..... ........ (C.25.3)
+            if (dataEnd - dataP > 0) {
+                return (((b & 0x1f) << 8) | *dataP++) + 0x40;
+            }
+        }
+        else if ((b & 0x70) == 0x60) { // x110.... ........ ........ (C.25.4)
+            if (dataEnd - dataP > 1) {
+                size_t result = (((b & 0x0f) << 16) | (dataP[0] << 8) | dataP[1]) + 0x2040;
+                dataP += 2;
+                return result;
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    size_t parseInt3() { // C.27
+        uint8_t b = *dataP++;
+        if (!(b & 0x20)) { // xx0..... (C.27.2)
+            return b & 0x1f;
+        }
+        else if ((b & 0x38) == 0x20) { // xx100... ........ (C.27.3)
+            if (dataEnd - dataP > 0) {
+                return (((b & 0x07) << 8) | *dataP++) + 0x20;
+            }
+        }
+        else if ((b & 0x38) == 0x28) { // xx101... ........ ........ (C.27.4)
+            if (dataEnd - dataP > 1) {
+                size_t result = (((b & 0x07) << 16) | (dataP[0] << 8) | dataP[1]) + 0x820;
+                dataP += 2;
+                return result;
+            }
+        }
+        else if ((b & 0x3f) == 0x30) { // xx110000 0000.... ........ ........ (C.27.5)
+            if ((dataEnd - dataP > 2) && !(dataP[0] & 0xf0)) {
+                size_t result = (((dataP[0] & 0x0f) << 16) | (dataP[1] << 8) | dataP[2]) + 0x80820;
+                dataP += 3;
+                return result;
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    size_t parseInt4() { // C.28
+        uint8_t b = *dataP++;
+        if (!(b & 0x10)) { // xxx0.... (C.28.2)
+            return b & 0x0f;
+        }
+        else if ((b & 0x1c) == 0x10) { // xxx100.. ........ (C.28.3)
+            if (dataEnd - dataP > 0) {
+                return (((b & 0x03) << 8) | *dataP++) + 0x10;
+            }
+        }
+        else if ((b & 0x1c) == 0x14) { // xxx101.. ........ ........ (C.28.4)
+            if (dataEnd - dataP > 1) {
+                size_t result = (((b & 0x03) << 16) | (dataP[0] << 8) | dataP[1]) + 0x410;
+                dataP += 2;
+                return result;
+            }
+        }
+        else if ((b & 0x1f) == 0x18) { // xxx11000 0000.... ........ ........ (C.28.5)
+            if ((dataEnd - dataP > 2) && !(dataP[0] & 0xf0)) {
+                size_t result = (((dataP[0] & 0x0f) << 16) | (dataP[1] << 8) | dataP[2]) + 0x40410;
+                dataP += 3;
+                return result;
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    size_t parseSequenceLen() { // C.21
+        if (dataEnd - dataP > 0) {
+            uint8_t b = *dataP++;
+            if (b < 0x80) { // 0....... (C.21.2)
+                return b;
+            }
+            else if ((b & 0xf0) == 0x80) { // 1000.... ........ ........ (C.21.3)
+                if (dataEnd - dataP > 1) {
+                    size_t result = (((b & 0x0f) << 16) | (dataP[0] << 8) | dataP[1]) + 0x80;
+                    dataP += 2;
+                    return result;
+                }
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    std::string parseNonEmptyOctetString2() { // C.22
+        // Parse the length of the string
+        uint8_t b = *dataP++ & 0x7f;
+        size_t len;
+        if (!(b & 0x40)) { // x0...... (C.22.3.1)
+            len = b + 1;
+        }
+        else if (b == 0x40) { // x1000000 ........ (C.22.3.2)
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            len = *dataP++ + 0x41;
+        }
+        else if (b == 0x60) { // x1100000 ........ ........ ........ ........ (C.22.3.3)
+            if (dataEnd - dataP < 4) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            len = ((dataP[0] << 24) | (dataP[1] << 16) | (dataP[2] << 8) | dataP[3]) + 0x141;
+            dataP += 4;
+        }
+        else {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+
+        // Parse the string (C.22.4)
+        if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        std::string s = parseUTF8String(dataP, len);
+        dataP += len;
+
+        return s;
+    }
+
+    size_t parseNonEmptyOctetString5Length() { // C.23
+        // Parse the length of the string
+        size_t b = *dataP++ & 0x0f;
+        if (!(b & 0x08)) { // xxxx0... (C.23.3.1)
+            return b + 1;
+        }
+        else if (b == 0x08) { // xxxx1000 ........ (C.23.3.2)
+            if (dataEnd - dataP > 0) {
+                return *dataP++ + 0x09;
+            }
+        }
+        else if (b == 0x0c) { // xxxx1100 ........ ........ ........ ........ (C.23.3.3)
+            if (dataEnd - dataP > 3) {
+                size_t result = ((dataP[0] << 24) | (dataP[1] << 16) | (dataP[2] << 8) | dataP[3]) + 0x109;
+                dataP += 4;
+                return result;
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    size_t parseNonEmptyOctetString7Length() { // C.24
+        // Parse the length of the string
+        size_t b = *dataP++ & 0x03;
+        if (!(b & 0x02)) { // xxxxxx0. (C.24.3.1)
+            return b + 1;
+        }
+        else if (b == 0x02) { // xxxxxx10 ........ (C.24.3.2)
+            if (dataEnd - dataP > 0) {
+                return *dataP++ + 0x3;
+            }
+        }
+        else if (b == 0x03) { // xxxxxx11 ........ ........ ........ ........ (C.24.3.3)
+            if (dataEnd - dataP > 3) {
+                size_t result = ((dataP[0] << 24) | (dataP[1] << 16) | (dataP[2] << 8) | dataP[3]) + 0x103;
+                dataP += 4;
+                return result;
+            }
+        }
+        throw DeadlyImportError(parseErrorMessage);
+    }
+
+    std::shared_ptr<const FIValue> parseEncodedData(size_t index, size_t len) {
+        if (index < 32) {
+            FIDecoder *decoder = defaultDecoder[index];
+            if (!decoder) {
+                throw DeadlyImportError("Invalid encoding algorithm index " + to_string(index));
+            }
+            return decoder->decode(dataP, len);
+        }
+        else {
+            if (index - 32 >= vocabulary.encodingAlgorithmTable.size()) {
+                throw DeadlyImportError("Invalid encoding algorithm index " + to_string(index));
+            }
+            std::string uri = vocabulary.encodingAlgorithmTable[index - 32];
+            auto it = decoderMap.find(uri);
+            if (it == decoderMap.end()) {
+                throw DeadlyImportError("Unsupported encoding algorithm " + uri);
+            }
+            else {
+                return it->second->decode(dataP, len);
+            }
+        }
+    }
+
+    std::shared_ptr<const FIValue> parseRestrictedAlphabet(size_t index, size_t len) {
+        std::string alphabet;
+        if (index < 16) {
+            switch (index) {
+            case 0: // numeric
+                alphabet = "0123456789-+.e ";
+                break;
+            case 1: // date and time
+                alphabet = "0123456789-:TZ ";
+                break;
+            default:
+                throw DeadlyImportError("Invalid restricted alphabet index " + to_string(index));
+            }
+        }
+        else {
+            if (index - 16 >= vocabulary.restrictedAlphabetTable.size()) {
+                throw DeadlyImportError("Invalid restricted alphabet index " + to_string(index));
+            }
+            alphabet = vocabulary.restrictedAlphabetTable[index - 16];
+        }
+        std::vector<uint32_t> alphabetUTF32;
+        utf8::utf8to32(alphabet.begin(), alphabet.end(), back_inserter(alphabetUTF32));
+        std::string::size_type alphabetLength = alphabetUTF32.size();
+        if (alphabetLength < 2) {
+            throw DeadlyImportError("Invalid restricted alphabet length " + to_string(alphabetLength));
+        }
+        std::string::size_type bitsPerCharacter = 1;
+        while ((1ull << bitsPerCharacter) <= alphabetLength) {
+            ++bitsPerCharacter;
+        }
+        size_t bitsAvail = 0;
+        uint8_t mask = (1 << bitsPerCharacter) - 1;
+        uint32_t bits = 0;
+        std::string s;
+        for (size_t i = 0; i < len; ++i) {
+            bits = (bits << 8) | dataP[i];
+            bitsAvail += 8;
+            while (bitsAvail >= bitsPerCharacter) {
+                bitsAvail -= bitsPerCharacter;
+                size_t charIndex = (bits >> bitsAvail) & mask;
+                if (charIndex < alphabetLength) {
+                    s.push_back(alphabetUTF32[charIndex]);
+                }
+                else if (charIndex != mask) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+            }
+        }
+        return FIStringValue::create(std::move(s));
+    }
+
+    std::shared_ptr<const FIValue> parseEncodedCharacterString3() { // C.19
+        std::shared_ptr<const FIValue> result;
+        size_t len;
+        uint8_t b = *dataP;
+        if (b & 0x20) {
+            ++dataP;
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            size_t index = ((b & 0x0f) << 4) | ((*dataP & 0xf0) >> 4); // C.29
+            len = parseNonEmptyOctetString5Length();
+            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            if (b & 0x10) {
+                // encoding algorithm (C.19.3.4)
+                result = parseEncodedData(index, len);
+            }
+            else {
+                // Restricted alphabet (C.19.3.3)
+                result = parseRestrictedAlphabet(index, len);
+            }
+        }
+        else {
+            len = parseNonEmptyOctetString5Length();
+            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            if (b & 0x10) {
+                // UTF-16 (C.19.3.2)
+                if (len & 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                result = FIStringValue::create(parseUTF16String(dataP, len));
+            }
+            else {
+                // UTF-8 (C.19.3.1)
+                result = FIStringValue::create(parseUTF8String(dataP, len));
+            }
+        }
+        dataP += len;
+        return result;
+    }
+
+    std::shared_ptr<const FIValue> parseEncodedCharacterString5() { // C.20
+        std::shared_ptr<const FIValue> result;
+        size_t len;
+        uint8_t b = *dataP;
+        if (b & 0x08) {
+            ++dataP;
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            size_t index = ((b & 0x03) << 6) | ((*dataP & 0xfc) >> 2); /* C.29 */
+            len = parseNonEmptyOctetString7Length();
+            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            if (b & 0x04) {
+                // encoding algorithm (C.20.3.4)
+                result = parseEncodedData(index, len);
+            }
+            else {
+                // Restricted alphabet (C.20.3.3)
+                result = parseRestrictedAlphabet(index, len);
+            }
+        }
+        else {
+            len = parseNonEmptyOctetString7Length();
+            if (dataEnd - dataP < static_cast<ptrdiff_t>(len)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            if (b & 0x04) {
+                // UTF-16 (C.20.3.2)
+                if (len & 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                result = FIStringValue::create(parseUTF16String(dataP, len));
+            }
+            else {
+                // UTF-8 (C.20.3.1)
+                result = FIStringValue::create(parseUTF8String(dataP, len));
+            }
+        }
+        dataP += len;
+        return result;
+    }
+
+    const std::string &parseIdentifyingStringOrIndex(std::vector<std::string> &stringTable) { // C.13
+        if (dataEnd - dataP < 1) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        uint8_t b = *dataP;
+        if (b & 0x80) {
+            // We have an index (C.13.4)
+            size_t index = parseInt2();
+            if (index >= stringTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            return stringTable[index];
+        }
+        else {
+            // We have a string (C.13.3)
+            stringTable.push_back(parseNonEmptyOctetString2());
+            return stringTable.back();
+        }
+    }
+
+    QName parseNameSurrogate() { // C.16
+        if (dataEnd - dataP < 1) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        uint8_t b = *dataP++;
+        if (b & 0xfc) { // Padding '000000' C.2.5.5
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        QName result;
+        size_t index;
+        if (b & 0x02) { // prefix (C.16.3)
+            if ((dataEnd - dataP < 1) || (*dataP & 0x80)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            index = parseInt2();
+            if (index >= vocabulary.prefixTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            result.prefix = vocabulary.prefixTable[index];
+        }
+        if (b & 0x01) { // namespace-name (C.16.4)
+            if ((dataEnd - dataP < 1) || (*dataP & 0x80)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            index = parseInt2();
+            if (index >= vocabulary.namespaceNameTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            result.uri = vocabulary.namespaceNameTable[index];
+        }
+        // local-name
+        if ((dataEnd - dataP < 1) || (*dataP & 0x80)) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        index = parseInt2();
+        if (index >= vocabulary.localNameTable.size()) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        result.name = vocabulary.localNameTable[index];
+        return result;
+    }
+
+    const QName &parseQualifiedNameOrIndex2(std::vector<QName> &qNameTable) { // C.17
+        uint8_t b = *dataP;
+        if ((b & 0x7c) == 0x78) { // x11110..
+            // We have a literal (C.17.3)
+            ++dataP;
+            QName result;
+            // prefix (C.17.3.1)
+            result.prefix = b & 0x02 ? parseIdentifyingStringOrIndex(vocabulary.prefixTable) : std::string();
+            // namespace-name (C.17.3.1)
+            result.uri = b & 0x01 ? parseIdentifyingStringOrIndex(vocabulary.namespaceNameTable) : std::string();
+            // local-name
+            result.name = parseIdentifyingStringOrIndex(vocabulary.localNameTable);
+            qNameTable.push_back(result);
+            return qNameTable.back();
+        }
+        else {
+            // We have an index (C.17.4)
+            size_t index = parseInt2();
+            if (index >= qNameTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            return qNameTable[index];
+        }
+    }
+
+    const QName &parseQualifiedNameOrIndex3(std::vector<QName> &qNameTable) { // C.18
+        uint8_t b = *dataP;
+        if ((b & 0x3c) == 0x3c) { // xx1111..
+            // We have a literal (C.18.3)
+            ++dataP;
+            QName result;
+            // prefix (C.18.3.1)
+            result.prefix = b & 0x02 ? parseIdentifyingStringOrIndex(vocabulary.prefixTable) : std::string();
+            // namespace-name (C.18.3.1)
+            result.uri = b & 0x01 ? parseIdentifyingStringOrIndex(vocabulary.namespaceNameTable) : std::string();
+            // local-name
+            result.name = parseIdentifyingStringOrIndex(vocabulary.localNameTable);
+            qNameTable.push_back(result);
+            return qNameTable.back();
+        }
+        else {
+            // We have an index (C.18.4)
+            size_t index = parseInt3();
+            if (index >= qNameTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            return qNameTable[index];
+        }
+    }
+
+    std::shared_ptr<const FIValue> parseNonIdentifyingStringOrIndex1(std::vector<std::shared_ptr<const FIValue>> &valueTable) { // C.14
+        uint8_t b = *dataP;
+        if (b == 0xff) { // C.26.2
+            // empty string
+            ++dataP;
+            return EmptyFIString;
+        }
+        else if (b & 0x80) { // C.14.4
+            // We have an index
+            size_t index = parseInt2();
+            if (index >= valueTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            return valueTable[index];
+        }
+        else { // C.14.3
+            // We have a literal
+            std::shared_ptr<const FIValue> result = parseEncodedCharacterString3();
+            if (b & 0x40) { // C.14.3.1
+                valueTable.push_back(result);
+            }
+            return result;
+        }
+    }
+
+    std::shared_ptr<const FIValue> parseNonIdentifyingStringOrIndex3(std::vector<std::shared_ptr<const FIValue>> &valueTable) { // C.15
+        uint8_t b = *dataP;
+        if (b & 0x20) { // C.15.4
+            // We have an index
+            size_t index = parseInt4();
+            if (index >= valueTable.size()) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            return valueTable[index];
+        }
+        else { // C.15.3
+            // We have a literal
+            std::shared_ptr<const FIValue> result = parseEncodedCharacterString5();
+            if (b & 0x10) { // C.15.3.1
+                valueTable.push_back(result);
+            }
+            return result;
+        }
+    }
+
+    void parseElement() {
+        // C.3
+
+        attributes.clear();
+
+        uint8_t b = *dataP;
+        bool hasAttributes = (b & 0x40) != 0; // C.3.3
+        if ((b & 0x3f) == 0x38) { // C.3.4.1
+            // Parse namespaces
+            ++dataP;
+            for (;;) {
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                b = *dataP++;
+                if (b == 0xf0) { // C.3.4.3
+                    break;
+                }
+                if ((b & 0xfc) != 0xcc) { // C.3.4.2
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                // C.12
+                Attribute attr;
+                attr.qname.prefix = "xmlns";
+                attr.qname.name = b & 0x02 ? parseIdentifyingStringOrIndex(vocabulary.prefixTable) : std::string();
+                attr.qname.uri = b & 0x01 ? parseIdentifyingStringOrIndex(vocabulary.namespaceNameTable) : std::string();
+                attr.name = attr.qname.name.empty() ? "xmlns" : "xmlns:" + attr.qname.name;
+                attr.value = FIStringValue::create(std::string(attr.qname.uri));
+                attributes.push_back(attr);
+            }
+            if ((dataEnd - dataP < 1) || (*dataP & 0xc0)) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+        }
+
+        // Parse Element name (C.3.5)
+        const QName &elemName = parseQualifiedNameOrIndex3(vocabulary.elementNameTable);
+        nodeName = elemName.prefix.empty() ? elemName.name : elemName.prefix + ':' + elemName.name;
+
+        if (hasAttributes) {
+            for (;;) {
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                b = *dataP;
+                if (b < 0x80) { // C.3.6.1
+                    // C.4
+                    Attribute attr;
+                    attr.qname = parseQualifiedNameOrIndex2(vocabulary.attributeNameTable);
+                    attr.name = attr.qname.prefix.empty() ? attr.qname.name : attr.qname.prefix + ':' + attr.qname.name;
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    attr.value = parseNonIdentifyingStringOrIndex1(vocabulary.attributeValueTable);
+                    attributes.push_back(attr);
+                }
+                else {
+                    if ((b & 0xf0) != 0xf0) { // C.3.6.2
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    emptyElement = b == 0xff; // C.3.6.2, C.3.8
+                    ++dataP;
+                    break;
+                }
+            }
+        }
+        else {
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            b = *dataP;
+            switch (b) {
+            case 0xff:
+                terminatorPending = true;
+                // Intentionally fall through
+            case 0xf0:
+                emptyElement = true;
+                ++dataP;
+                break;
+            default:
+                emptyElement = false;
+            }
+        }
+        if (!emptyElement) {
+            elementStack.push(nodeName);
+        }
+
+        currentNodeType = irr::io::EXN_ELEMENT;
+    }
+
+    void parseHeader() {
+        // Parse header (C.1.3)
+        size_t magicSize = parseMagic(dataP, dataEnd);
+        if (!magicSize) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        dataP += magicSize;
+        // C.2.3
+        if (dataEnd - dataP < 1) {
+            throw DeadlyImportError(parseErrorMessage);
+        }
+        uint8_t b = *dataP++;
+        if (b & 0x40) {
+            // Parse additional data (C.2.4)
+            size_t len = parseSequenceLen();
+            for (size_t i = 0; i < len; ++i) {
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                /*std::string id =*/ parseNonEmptyOctetString2();
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                /*std::string data =*/ parseNonEmptyOctetString2();
+            }
+        }
+        if (b & 0x20) {
+            // Parse initial vocabulary (C.2.5)
+            if (dataEnd - dataP < 2) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            uint16_t b1 = (dataP[0] << 8) | dataP[1];
+            dataP += 2;
+            if (b1 & 0x1000) {
+                // External vocabulary (C.2.5.2)
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                std::string uri = parseNonEmptyOctetString2();
+                auto it = vocabularyMap.find(uri);
+                if (it == vocabularyMap.end()) {
+                    throw DeadlyImportError("Unknown vocabulary " + uri);
+                }
+                const FIVocabulary *externalVocabulary = it->second;
+                if (externalVocabulary->restrictedAlphabetTable) {
+                    std::copy(externalVocabulary->restrictedAlphabetTable, externalVocabulary->restrictedAlphabetTable + externalVocabulary->restrictedAlphabetTableSize, std::back_inserter(vocabulary.restrictedAlphabetTable));
+                }
+                if (externalVocabulary->encodingAlgorithmTable) {
+                    std::copy(externalVocabulary->encodingAlgorithmTable, externalVocabulary->encodingAlgorithmTable + externalVocabulary->encodingAlgorithmTableSize, std::back_inserter(vocabulary.encodingAlgorithmTable));
+                }
+                if (externalVocabulary->prefixTable) {
+                    std::copy(externalVocabulary->prefixTable, externalVocabulary->prefixTable + externalVocabulary->prefixTableSize, std::back_inserter(vocabulary.prefixTable));
+                }
+                if (externalVocabulary->namespaceNameTable) {
+                    std::copy(externalVocabulary->namespaceNameTable, externalVocabulary->namespaceNameTable + externalVocabulary->namespaceNameTableSize, std::back_inserter(vocabulary.namespaceNameTable));
+                }
+                if (externalVocabulary->localNameTable) {
+                    std::copy(externalVocabulary->localNameTable, externalVocabulary->localNameTable + externalVocabulary->localNameTableSize, std::back_inserter(vocabulary.localNameTable));
+                }
+                if (externalVocabulary->otherNCNameTable) {
+                    std::copy(externalVocabulary->otherNCNameTable, externalVocabulary->otherNCNameTable + externalVocabulary->otherNCNameTableSize, std::back_inserter(vocabulary.otherNCNameTable));
+                }
+                if (externalVocabulary->otherURITable) {
+                    std::copy(externalVocabulary->otherURITable, externalVocabulary->otherURITable + externalVocabulary->otherURITableSize, std::back_inserter(vocabulary.otherURITable));
+                }
+                if (externalVocabulary->attributeValueTable) {
+                    std::copy(externalVocabulary->attributeValueTable, externalVocabulary->attributeValueTable + externalVocabulary->attributeValueTableSize, std::back_inserter(vocabulary.attributeValueTable));
+                }
+                if (externalVocabulary->charactersTable) {
+                    std::copy(externalVocabulary->charactersTable, externalVocabulary->charactersTable + externalVocabulary->charactersTableSize, std::back_inserter(vocabulary.charactersTable));
+                }
+                if (externalVocabulary->otherStringTable) {
+                    std::copy(externalVocabulary->otherStringTable, externalVocabulary->otherStringTable + externalVocabulary->otherStringTableSize, std::back_inserter(vocabulary.otherStringTable));
+                }
+                if (externalVocabulary->elementNameTable) {
+                    std::copy(externalVocabulary->elementNameTable, externalVocabulary->elementNameTable + externalVocabulary->elementNameTableSize, std::back_inserter(vocabulary.elementNameTable));
+                }
+                if (externalVocabulary->attributeNameTable) {
+                    std::copy(externalVocabulary->attributeNameTable, externalVocabulary->attributeNameTable + externalVocabulary->attributeNameTableSize, std::back_inserter(vocabulary.attributeNameTable));
+                }
+            }
+            if (b1 & 0x0800) {
+                // Parse restricted alphabets (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.restrictedAlphabetTable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0400) {
+                // Parse encoding algorithms (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.encodingAlgorithmTable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0200) {
+                // Parse prefixes (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.prefixTable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0100) {
+                // Parse namespace names (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.namespaceNameTable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0080) {
+                // Parse local names (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.localNameTable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0040) {
+                // Parse other ncnames (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.otherNCNameTable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0020) {
+                // Parse other uris (C.2.5.3)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.otherURITable.push_back(parseNonEmptyOctetString2());
+                }
+            }
+            if (b1 & 0x0010) {
+                // Parse attribute values (C.2.5.4)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.attributeValueTable.push_back(parseEncodedCharacterString3());
+                }
+            }
+            if (b1 & 0x0008) {
+                // Parse content character chunks (C.2.5.4)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.charactersTable.push_back(parseEncodedCharacterString3());
+                }
+            }
+            if (b1 & 0x0004) {
+                // Parse other strings (C.2.5.4)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    if (dataEnd - dataP < 1) {
+                        throw DeadlyImportError(parseErrorMessage);
+                    }
+                    vocabulary.otherStringTable.push_back(parseEncodedCharacterString3());
+                }
+            }
+            if (b1 & 0x0002) {
+                // Parse element name surrogates (C.2.5.5)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    vocabulary.elementNameTable.push_back(parseNameSurrogate());
+                }
+            }
+            if (b1 & 0x0001) {
+                // Parse attribute name surrogates (C.2.5.5)
+                for (size_t len = parseSequenceLen(); len > 0; --len) {
+                    vocabulary.attributeNameTable.push_back(parseNameSurrogate());
+                }
+            }
+        }
+        if (b & 0x10) {
+            // Parse notations (C.2.6)
+            for (;;) {
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                uint8_t b1 = *dataP++;
+                if (b1 == 0xf0) {
+                    break;
+                }
+                if ((b1 & 0xfc) != 0xc0) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                /* C.11 */
+                /*const std::string &name =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
+                if (b1 & 0x02) {
+                    /*const std::string &systemId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+                if (b1 & 0x01) {
+                    /*const std::string &publicId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+            }
+        }
+        if (b & 0x08) {
+            // Parse unparsed entities (C.2.7)
+            for (;;) {
+                if (dataEnd - dataP < 1) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                uint8_t b1 = *dataP++;
+                if (b1 == 0xf0) {
+                    break;
+                }
+                if ((b1 & 0xfe) != 0xd0) {
+                    throw DeadlyImportError(parseErrorMessage);
+                }
+                /* C.10 */
+                /*const std::string &name =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
+                /*const std::string &systemId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                if (b1 & 0x01) {
+                    /*const std::string &publicId =*/ parseIdentifyingStringOrIndex(vocabulary.otherURITable);
+                }
+                /*const std::string &notationName =*/ parseIdentifyingStringOrIndex(vocabulary.otherNCNameTable);
+            }
+        }
+        if (b & 0x04) {
+            // Parse character encoding scheme (C.2.8)
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            /*std::string characterEncodingScheme =*/ parseNonEmptyOctetString2();
+        }
+        if (b & 0x02) {
+            // Parse standalone flag (C.2.9)
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            uint8_t b1 = *dataP++;
+            if (b1 & 0xfe) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            //bool standalone = b1 & 0x01;
+        }
+        if (b & 0x01) {
+            // Parse version (C.2.10)
+            if (dataEnd - dataP < 1) {
+                throw DeadlyImportError(parseErrorMessage);
+            }
+            /*std::shared_ptr<const FIValue> version =*/ parseNonIdentifyingStringOrIndex1(vocabulary.otherStringTable);
+        }
+    }
+
+    std::unique_ptr<uint8_t[]> data;
+    uint8_t *dataP, *dataEnd;
+    irr::io::EXML_NODE currentNodeType;
+    bool emptyElement;
+    bool headerPending;
+    bool terminatorPending;
+    Vocabulary vocabulary;
+    std::vector<Attribute> attributes;
+    std::stack<std::string> elementStack;
+    std::string nodeName;
+    std::map<std::string, std::unique_ptr<FIDecoder>> decoderMap;
+    std::map<std::string, const FIVocabulary*> vocabularyMap;
+
+    static const std::string EmptyString;
+    static std::shared_ptr<const FIValue> EmptyFIString;
+
+    static FIHexDecoder hexDecoder;
+    static FIBase64Decoder base64Decoder;
+    static FIShortDecoder shortDecoder;
+    static FIIntDecoder intDecoder;
+    static FILongDecoder longDecoder;
+    static FIBoolDecoder boolDecoder;
+    static FIFloatDecoder floatDecoder;
+    static FIDoubleDecoder doubleDecoder;
+    static FIUUIDDecoder uuidDecoder;
+    static FICDATADecoder cdataDecoder;
+    static FIDecoder *defaultDecoder[32];
+};
+
+const std::string CFIReaderImpl::EmptyString;
+std::shared_ptr<const FIValue> CFIReaderImpl::EmptyFIString = FIStringValue::create(std::string());
+
+FIHexDecoder CFIReaderImpl::hexDecoder;
+FIBase64Decoder CFIReaderImpl::base64Decoder;
+FIShortDecoder CFIReaderImpl::shortDecoder;
+FIIntDecoder CFIReaderImpl::intDecoder;
+FILongDecoder CFIReaderImpl::longDecoder;
+FIBoolDecoder CFIReaderImpl::boolDecoder;
+FIFloatDecoder CFIReaderImpl::floatDecoder;
+FIDoubleDecoder CFIReaderImpl::doubleDecoder;
+FIUUIDDecoder CFIReaderImpl::uuidDecoder;
+FICDATADecoder CFIReaderImpl::cdataDecoder;
+
+FIDecoder *CFIReaderImpl::defaultDecoder[32] = {
+    &hexDecoder,
+    &base64Decoder,
+    &shortDecoder,
+    &intDecoder,
+    &longDecoder,
+    &boolDecoder,
+    &floatDecoder,
+    &doubleDecoder,
+    &uuidDecoder,
+    &cdataDecoder
+};
+
+class CXMLReaderImpl : public FIReader
+{
+public:
+
+    //! Constructor
+    CXMLReaderImpl(std::unique_ptr<irr::io::IIrrXMLReader<char, irr::io::IXMLBase>> reader_)
+    : reader(std::move(reader_))
+    {}
+
+    virtual ~CXMLReaderImpl() {}
+
+    virtual bool read() /*override*/ {
+        return reader->read();
+    }
+
+    virtual irr::io::EXML_NODE getNodeType() const /*override*/ {
+        return reader->getNodeType();
+    }
+
+    virtual int getAttributeCount() const /*override*/ {
+        return reader->getAttributeCount();
+    }
+
+    virtual const char* getAttributeName(int idx) const /*override*/ {
+        return reader->getAttributeName(idx);
+    }
+
+    virtual const char* getAttributeValue(int idx) const /*override*/ {
+        return reader->getAttributeValue(idx);
+    }
+
+    virtual const char* getAttributeValue(const char* name) const /*override*/ {
+        return reader->getAttributeValue(name);
+    }
+
+    virtual const char* getAttributeValueSafe(const char* name) const /*override*/ {
+        return reader->getAttributeValueSafe(name);
+    }
+
+    virtual int getAttributeValueAsInt(const char* name) const /*override*/ {
+        return reader->getAttributeValueAsInt(name);
+    }
+
+    virtual int getAttributeValueAsInt(int idx) const /*override*/ {
+        return reader->getAttributeValueAsInt(idx);
+    }
+
+    virtual float getAttributeValueAsFloat(const char* name) const /*override*/ {
+        return reader->getAttributeValueAsFloat(name);
+    }
+
+    virtual float getAttributeValueAsFloat(int idx) const /*override*/ {
+        return reader->getAttributeValueAsFloat(idx);
+    }
+
+    virtual const char* getNodeName() const /*override*/ {
+        return reader->getNodeName();
+    }
+
+    virtual const char* getNodeData() const /*override*/ {
+        return reader->getNodeData();
+    }
+
+    virtual bool isEmptyElement() const /*override*/ {
+        return reader->isEmptyElement();
+    }
+
+    virtual irr::io::ETEXT_FORMAT getSourceFormat() const /*override*/ {
+        return reader->getSourceFormat();
+    }
+
+    virtual irr::io::ETEXT_FORMAT getParserFormat() const /*override*/ {
+        return reader->getParserFormat();
+    }
+
+    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(int /*idx*/) const /*override*/ {
+        return nullptr;
+    }
+
+    virtual std::shared_ptr<const FIValue> getAttributeEncodedValue(const char* /*name*/) const /*override*/ {
+        return nullptr;
+    }
+
+    virtual void registerDecoder(const std::string & /*algorithmUri*/, std::unique_ptr<FIDecoder> /*decoder*/) /*override*/ {}
+
+
+    virtual void registerVocabulary(const std::string &/*vocabularyUri*/, const FIVocabulary * /*vocabulary*/) /*override*/ {}
+
+private:
+
+    std::unique_ptr<irr::io::IIrrXMLReader<char, irr::io::IXMLBase>> reader;
+};
+
+static std::unique_ptr<uint8_t[]> readFile(IOStream *stream, size_t &size, bool &isFI) {
+    size = stream->FileSize();
+    std::unique_ptr<uint8_t[]> data = std::unique_ptr<uint8_t[]>(new uint8_t[size]);
+    if (stream->Read(data.get(), size, 1) != 1) {
+        size = 0;
+        data.reset();
+    }
+    isFI = parseMagic(data.get(), data.get() + size) > 0;
+    return data;
+}
+
+std::unique_ptr<FIReader> FIReader::create(IOStream *stream)
+{
+    size_t size;
+    bool isFI;
+    auto data = readFile(stream, size, isFI);
+    if (isFI) {
+        return std::unique_ptr<FIReader>(new CFIReaderImpl(std::move(data), size));
+    }
+    else {
+        auto memios = std::unique_ptr<MemoryIOStream>(new MemoryIOStream(data.release(), size, true));
+        auto callback = std::unique_ptr<CIrrXML_IOStreamReader>(new CIrrXML_IOStreamReader(memios.get()));
+        return std::unique_ptr<FIReader>(new CXMLReaderImpl(std::unique_ptr<irr::io::IIrrXMLReader<char, irr::io::IXMLBase>>(createIrrXMLReader(callback.get()))));
+    }
+}
+
+}// namespace Assimp
+
+#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER
diff --git a/thirdparty/assimp/code/FileLogStream.h b/thirdparty/assimp/code/FileLogStream.h
new file mode 100644
index 0000000000..740c503192
--- /dev/null
+++ b/thirdparty/assimp/code/FileLogStream.h
@@ -0,0 +1,107 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+/** @file FileLofStream.h
+*/
+#ifndef ASSIMP_FILELOGSTREAM_H_INC
+#define ASSIMP_FILELOGSTREAM_H_INC
+
+#include <assimp/LogStream.hpp>
+#include <assimp/IOStream.hpp>
+#include <assimp/DefaultIOSystem.h>
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+/** @class  FileLogStream
+ *  @brief  Logstream to write into a file.
+ */
+class FileLogStream :
+    public LogStream
+{
+public:
+    FileLogStream( const char* file, IOSystem* io = NULL );
+    ~FileLogStream();
+    void write( const char* message );
+
+private:
+    IOStream *m_pStream;
+};
+
+// ----------------------------------------------------------------------------------
+//  Constructor
+inline FileLogStream::FileLogStream( const char* file, IOSystem* io ) :
+    m_pStream(NULL)
+{
+    if ( !file || 0 == *file )
+        return;
+
+    // If no IOSystem is specified: take a default one
+    if (!io)
+    {
+        DefaultIOSystem FileSystem;
+        m_pStream = FileSystem.Open( file, "wt");
+    }
+    else m_pStream = io->Open( file, "wt" );
+}
+
+// ----------------------------------------------------------------------------------
+//  Destructor
+inline FileLogStream::~FileLogStream()
+{
+    // The virtual d'tor should destroy the underlying file
+    delete m_pStream;
+}
+
+// ----------------------------------------------------------------------------------
+//  Write method
+inline void FileLogStream::write( const char* message )
+{
+    if (m_pStream != NULL)
+    {
+        m_pStream->Write(message, sizeof(char), ::strlen(message));
+        m_pStream->Flush();
+    }
+}
+
+// ----------------------------------------------------------------------------------
+} // !Namespace Assimp
+
+#endif // !! ASSIMP_FILELOGSTREAM_H_INC
diff --git a/thirdparty/assimp/code/FileSystemFilter.h b/thirdparty/assimp/code/FileSystemFilter.h
new file mode 100644
index 0000000000..9923cdbdd3
--- /dev/null
+++ b/thirdparty/assimp/code/FileSystemFilter.h
@@ -0,0 +1,345 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2008, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file FileSystemFilter.h
+ *  Implements a filter system to filter calls to Exists() and Open()
+ *  in order to improve the success rate of file opening ...
+ */
+#pragma once
+#ifndef AI_FILESYSTEMFILTER_H_INC
+#define AI_FILESYSTEMFILTER_H_INC
+
+#include <assimp/IOSystem.hpp>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/fast_atof.h>
+#include <assimp/ParsingUtils.h>
+
+namespace Assimp    {
+
+inline bool IsHex(char s) {
+    return (s>='0' && s<='9') || (s>='a' && s<='f') || (s>='A' && s<='F');
+}
+
+// ---------------------------------------------------------------------------
+/** File system filter
+ */
+class FileSystemFilter : public IOSystem
+{
+public:
+    /** Constructor. */
+    FileSystemFilter(const std::string& file, IOSystem* old)
+    : mWrapped  (old)
+    , mSrc_file(file)
+    , mSep(mWrapped->getOsSeparator()) {
+        ai_assert(nullptr != mWrapped);
+
+        // Determine base directory
+        mBase = mSrc_file;
+        std::string::size_type ss2;
+        if (std::string::npos != (ss2 = mBase.find_last_of("\\/")))  {
+            mBase.erase(ss2,mBase.length()-ss2);
+        } else {
+            mBase = "";
+        }
+
+        // make sure the directory is terminated properly
+        char s;
+
+        if ( mBase.empty() ) {
+            mBase = ".";
+            mBase += getOsSeparator();
+        } else if ((s = *(mBase.end()-1)) != '\\' && s != '/') {
+            mBase += getOsSeparator();
+        }
+
+        DefaultLogger::get()->info("Import root directory is \'" + mBase + "\'");
+    }
+
+    /** Destructor. */
+    ~FileSystemFilter() {
+        // empty
+    }
+
+    // -------------------------------------------------------------------
+    /** Tests for the existence of a file at the given path. */
+    bool Exists( const char* pFile) const {
+        ai_assert( nullptr != mWrapped );
+        
+        std::string tmp = pFile;
+
+        // Currently this IOSystem is also used to open THE ONE FILE.
+        if (tmp != mSrc_file)    {
+            BuildPath(tmp);
+            Cleanup(tmp);
+        }
+
+        return mWrapped->Exists(tmp);
+    }
+
+    // -------------------------------------------------------------------
+    /** Returns the directory separator. */
+    char getOsSeparator() const {
+        return mSep;
+    }
+
+    // -------------------------------------------------------------------
+    /** Open a new file with a given path. */
+    IOStream* Open( const char* pFile, const char* pMode = "rb") {
+        ai_assert( nullptr != mWrapped );
+        if ( nullptr == pFile || nullptr == pMode ) {
+            return nullptr;
+        }
+        
+        ai_assert( nullptr != pFile );
+        ai_assert( nullptr != pMode );
+
+        // First try the unchanged path
+        IOStream* s = mWrapped->Open(pFile,pMode);
+
+        if (nullptr == s) {
+            std::string tmp = pFile;
+
+            // Try to convert between absolute and relative paths
+            BuildPath(tmp);
+            s = mWrapped->Open(tmp,pMode);
+
+            if (nullptr == s) {
+                // Finally, look for typical issues with paths
+                // and try to correct them. This is our last
+                // resort.
+                tmp = pFile;
+                Cleanup(tmp);
+                BuildPath(tmp);
+                s = mWrapped->Open(tmp,pMode);
+            }
+        }
+
+        return s;
+    }
+
+    // -------------------------------------------------------------------
+    /** Closes the given file and releases all resources associated with it. */
+    void Close( IOStream* pFile) {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->Close(pFile);
+    }
+
+    // -------------------------------------------------------------------
+    /** Compare two paths */
+    bool ComparePaths (const char* one, const char* second) const {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->ComparePaths (one,second);
+    }
+
+    // -------------------------------------------------------------------
+    /** Pushes a new directory onto the directory stack. */
+    bool PushDirectory(const std::string &path ) {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->PushDirectory(path);
+    }
+
+    // -------------------------------------------------------------------
+    /** Returns the top directory from the stack. */
+    const std::string &CurrentDirectory() const {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->CurrentDirectory();
+    }
+
+    // -------------------------------------------------------------------
+    /** Returns the number of directories stored on the stack. */
+    size_t StackSize() const {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->StackSize();
+    }
+
+    // -------------------------------------------------------------------
+    /** Pops the top directory from the stack. */
+    bool PopDirectory() {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->PopDirectory();
+    }
+
+    // -------------------------------------------------------------------
+    /** Creates an new directory at the given path. */
+    bool CreateDirectory(const std::string &path) {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->CreateDirectory(path);
+    }
+
+    // -------------------------------------------------------------------
+    /** Will change the current directory to the given path. */
+    bool ChangeDirectory(const std::string &path) {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->ChangeDirectory(path);
+    }
+
+    // -------------------------------------------------------------------
+    /** Delete file. */
+    bool DeleteFile(const std::string &file) {
+        ai_assert( nullptr != mWrapped );
+        return mWrapped->DeleteFile(file);
+    }
+
+private:
+    // -------------------------------------------------------------------
+    /** Build a valid path from a given relative or absolute path.
+     */
+    void BuildPath (std::string& in) const {
+        ai_assert( nullptr != mWrapped );
+        // if we can already access the file, great.
+        if (in.length() < 3 || mWrapped->Exists(in)) {
+            return;
+        }
+
+        // Determine whether this is a relative path (Windows-specific - most assets are packaged on Windows).
+        if (in[1] != ':') {
+
+            // append base path and try
+            const std::string tmp = mBase + in;
+            if (mWrapped->Exists(tmp)) {
+                in = tmp;
+                return;
+            }
+        }
+
+        // Chop of the file name and look in the model directory, if
+        // this fails try all sub paths of the given path, i.e.
+        // if the given path is foo/bar/something.lwo, try
+        // <base>/something.lwo
+        // <base>/bar/something.lwo
+        // <base>/foo/bar/something.lwo
+        std::string::size_type pos = in.rfind('/');
+        if (std::string::npos == pos) {
+            pos = in.rfind('\\');
+        }
+
+        if (std::string::npos != pos)   {
+            std::string tmp;
+            std::string::size_type last_dirsep = std::string::npos;
+
+            while(true) {
+                tmp = mBase;
+                tmp += mSep;
+
+                std::string::size_type dirsep = in.rfind('/', last_dirsep);
+                if (std::string::npos == dirsep) {
+                    dirsep = in.rfind('\\', last_dirsep);
+                }
+
+                if (std::string::npos == dirsep || dirsep == 0) {
+                    // we did try this already.
+                    break;
+                }
+
+                last_dirsep = dirsep-1;
+
+                tmp += in.substr(dirsep+1, in.length()-pos);
+                if (mWrapped->Exists(tmp)) {
+                    in = tmp;
+                    return;
+                }
+            }
+        }
+
+        // hopefully the underlying file system has another few tricks to access this file ...
+    }
+
+    // -------------------------------------------------------------------
+    /** Cleanup the given path
+     */
+    void Cleanup (std::string& in) const {
+        if(in.empty()) {
+            return;
+        }
+
+        // Remove a very common issue when we're parsing file names: spaces at the
+        // beginning of the path.
+        char last = 0;
+        std::string::iterator it = in.begin();
+        while (IsSpaceOrNewLine( *it ))++it;
+        if (it != in.begin()) {
+            in.erase(in.begin(),it+1);
+        }
+
+        const char separator = getOsSeparator();
+        for (it = in.begin(); it != in.end(); ++it) {
+            // Exclude :// and \\, which remain untouched.
+            // https://sourceforge.net/tracker/?func=detail&aid=3031725&group_id=226462&atid=1067632
+            if ( !strncmp(&*it, "://", 3 )) {
+                it += 3;
+                continue;
+            }
+            if (it == in.begin() && !strncmp(&*it, "\\\\", 2)) {
+                it += 2;
+                continue;
+            }
+
+            // Cleanup path delimiters
+            if (*it == '/' || (*it) == '\\') {
+                *it = separator;
+
+                // And we're removing double delimiters, frequent issue with
+                // incorrectly composited paths ...
+                if (last == *it) {
+                    it = in.erase(it);
+                    --it;
+                }
+            } else if (*it == '%' && in.end() - it > 2) {
+                // Hex sequence in URIs
+                if( IsHex((&*it)[0]) && IsHex((&*it)[1]) ) {
+                    *it = HexOctetToDecimal(&*it);
+                    it = in.erase(it+1,it+2);
+                    --it;
+                }
+            }
+
+            last = *it;
+        }
+    }
+
+private:
+    IOSystem *mWrapped;
+    std::string mSrc_file, mBase;
+    char mSep;
+};
+
+} //!ns Assimp
+
+#endif //AI_DEFAULTIOSYSTEM_H_INC
diff --git a/thirdparty/assimp/code/FindDegenerates.cpp b/thirdparty/assimp/code/FindDegenerates.cpp
new file mode 100644
index 0000000000..365f5d7447
--- /dev/null
+++ b/thirdparty/assimp/code/FindDegenerates.cpp
@@ -0,0 +1,300 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  FindDegenerates.cpp
+ *  @brief Implementation of the FindDegenerates post-process step.
+*/
+
+
+
+// internal headers
+#include "ProcessHelper.h"
+#include "FindDegenerates.h"
+#include <assimp/Exceptional.h>
+
+using namespace Assimp;
+
+//remove mesh at position 'index' from the scene
+static void removeMesh(aiScene* pScene, unsigned const index);
+//correct node indices to meshes and remove references to deleted mesh
+static void updateSceneGraph(aiNode* pNode, unsigned const index);
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+FindDegeneratesProcess::FindDegeneratesProcess()
+: mConfigRemoveDegenerates( false )
+, mConfigCheckAreaOfTriangle( false ){
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FindDegeneratesProcess::~FindDegeneratesProcess() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool FindDegeneratesProcess::IsActive( unsigned int pFlags) const {
+    return 0 != (pFlags & aiProcess_FindDegenerates);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup import configuration
+void FindDegeneratesProcess::SetupProperties(const Importer* pImp) {
+    // Get the current value of AI_CONFIG_PP_FD_REMOVE
+    mConfigRemoveDegenerates = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_FD_REMOVE,0));
+    mConfigCheckAreaOfTriangle = ( 0 != pImp->GetPropertyInteger(AI_CONFIG_PP_FD_CHECKAREA) );
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void FindDegeneratesProcess::Execute( aiScene* pScene) {
+    ASSIMP_LOG_DEBUG("FindDegeneratesProcess begin");
+    for (unsigned int i = 0; i < pScene->mNumMeshes;++i)
+    {
+        //Do not process point cloud, ExecuteOnMesh works only with faces data
+        if ((pScene->mMeshes[i]->mPrimitiveTypes != aiPrimitiveType::aiPrimitiveType_POINT) && ExecuteOnMesh(pScene->mMeshes[i])) {
+            removeMesh(pScene, i);
+            --i; //the current i is removed, do not skip the next one
+        }
+    }
+    ASSIMP_LOG_DEBUG("FindDegeneratesProcess finished");
+}
+
+static void removeMesh(aiScene* pScene, unsigned const index) {
+    //we start at index and copy the pointers one position forward
+    //save the mesh pointer to delete it later
+    auto delete_me = pScene->mMeshes[index];
+    for (unsigned i = index; i < pScene->mNumMeshes - 1; ++i) {
+        pScene->mMeshes[i] = pScene->mMeshes[i+1];
+    }
+    pScene->mMeshes[pScene->mNumMeshes - 1] = nullptr;
+    --(pScene->mNumMeshes);
+    delete delete_me;
+
+    //removing a mesh also requires updating all references to it in the scene graph
+    updateSceneGraph(pScene->mRootNode, index);
+}
+
+static void updateSceneGraph(aiNode* pNode, unsigned const index) {
+    for (unsigned i = 0; i < pNode->mNumMeshes; ++i) {
+        if (pNode->mMeshes[i] > index) {
+            --(pNode->mMeshes[i]);
+            continue;
+        }
+        if (pNode->mMeshes[i] == index) {
+            for (unsigned j = i; j < pNode->mNumMeshes -1; ++j) {
+                pNode->mMeshes[j] = pNode->mMeshes[j+1];
+            }
+            --(pNode->mNumMeshes);
+            --i;
+            continue;
+        }
+    }
+    //recurse to all children
+    for (unsigned i = 0; i < pNode->mNumChildren; ++i) {
+        updateSceneGraph(pNode->mChildren[i], index);
+    }
+}
+
+static ai_real heron( ai_real a, ai_real b, ai_real c ) {
+    ai_real s = (a + b + c) / 2;
+    ai_real area = pow((s * ( s - a ) * ( s - b ) * ( s - c ) ), (ai_real)0.5 );
+    return area;
+}
+
+static ai_real distance3D( const aiVector3D &vA, aiVector3D &vB ) {
+    const ai_real lx = ( vB.x - vA.x );
+    const ai_real ly = ( vB.y - vA.y );
+    const ai_real lz = ( vB.z - vA.z );
+    ai_real a = lx*lx + ly*ly + lz*lz;
+    ai_real d = pow( a, (ai_real)0.5 );
+
+    return d;
+}
+
+static ai_real calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh ) {
+    ai_real area = 0;
+
+    aiVector3D vA( mesh->mVertices[ face.mIndices[ 0 ] ] );
+    aiVector3D vB( mesh->mVertices[ face.mIndices[ 1 ] ] );
+    aiVector3D vC( mesh->mVertices[ face.mIndices[ 2 ] ] );
+
+    ai_real a( distance3D( vA, vB ) );
+    ai_real b( distance3D( vB, vC ) );
+    ai_real c( distance3D( vC, vA ) );
+    area = heron( a, b, c );
+
+    return area;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported mesh
+bool FindDegeneratesProcess::ExecuteOnMesh( aiMesh* mesh) {
+    mesh->mPrimitiveTypes = 0;
+
+    std::vector<bool> remove_me;
+    if (mConfigRemoveDegenerates) {
+        remove_me.resize( mesh->mNumFaces, false );
+    }
+
+    unsigned int deg = 0, limit;
+    for ( unsigned int a = 0; a < mesh->mNumFaces; ++a ) {
+        aiFace& face = mesh->mFaces[a];
+        bool first = true;
+
+        // check whether the face contains degenerated entries
+        for (unsigned int i = 0; i < face.mNumIndices; ++i) {
+            // Polygons with more than 4 points are allowed to have double points, that is
+            // simulating polygons with holes just with concave polygons. However,
+            // double points may not come directly after another.
+            limit = face.mNumIndices;
+            if (face.mNumIndices > 4) {
+                limit = std::min( limit, i+2 );
+            }
+
+            for (unsigned int t = i+1; t < limit; ++t) {
+                if (mesh->mVertices[face.mIndices[ i ] ] == mesh->mVertices[ face.mIndices[ t ] ]) {
+                    // we have found a matching vertex position
+                    // remove the corresponding index from the array
+                    --face.mNumIndices;
+                    --limit;
+                    for (unsigned int m = t; m < face.mNumIndices; ++m) {
+                        face.mIndices[ m ] = face.mIndices[ m+1 ];
+                    }
+                    --t;
+
+                    // NOTE: we set the removed vertex index to an unique value
+                    // to make sure the developer gets notified when his
+                    // application attempts to access this data.
+                    face.mIndices[ face.mNumIndices ] = 0xdeadbeef;
+
+                    if(first) {
+                        ++deg;
+                        first = false;
+                    }
+
+                    if ( mConfigRemoveDegenerates ) {
+                        remove_me[ a ] = true;
+                        goto evil_jump_outside; // hrhrhrh ... yeah, this rocks baby!
+                    }
+                }
+            }
+
+            if ( mConfigCheckAreaOfTriangle ) {
+                if ( face.mNumIndices == 3 ) {
+                    ai_real area = calculateAreaOfTriangle( face, mesh );
+                    if ( area < 1e-6 ) {
+                        if ( mConfigRemoveDegenerates ) {
+                            remove_me[ a ] = true;
+                            goto evil_jump_outside;
+                        }
+
+                        // todo: check for index which is corrupt.
+                    }
+                }
+            }
+        }
+
+        // We need to update the primitive flags array of the mesh.
+        switch (face.mNumIndices)
+        {
+        case 1u:
+            mesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
+            break;
+        case 2u:
+            mesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+            break;
+        case 3u:
+            mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+            break;
+        default:
+            mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+            break;
+        };
+evil_jump_outside:
+        continue;
+    }
+
+    // If AI_CONFIG_PP_FD_REMOVE is true, remove degenerated faces from the import
+    if (mConfigRemoveDegenerates && deg) {
+        unsigned int n = 0;
+        for (unsigned int a = 0; a < mesh->mNumFaces; ++a)
+        {
+            aiFace& face_src = mesh->mFaces[a];
+            if (!remove_me[a]) {
+                aiFace& face_dest = mesh->mFaces[n++];
+
+                // Do a manual copy, keep the index array
+                face_dest.mNumIndices = face_src.mNumIndices;
+                face_dest.mIndices    = face_src.mIndices;
+
+                if (&face_src != &face_dest) {
+                    // clear source
+                    face_src.mNumIndices = 0;
+                    face_src.mIndices = nullptr;
+                }
+            }
+            else {
+                // Otherwise delete it if we don't need this face
+                delete[] face_src.mIndices;
+                face_src.mIndices = nullptr;
+                face_src.mNumIndices = 0;
+            }
+        }
+        // Just leave the rest of the array unreferenced, we don't care for now
+        mesh->mNumFaces = n;
+        if (!mesh->mNumFaces) {
+            //The whole mesh consists of degenerated faces
+            //signal upward, that this mesh should be deleted.
+            ASSIMP_LOG_DEBUG("FindDegeneratesProcess removed a mesh full of degenerated primitives");
+            return true;
+        }
+    }
+
+    if (deg && !DefaultLogger::isNullLogger()) {
+        ASSIMP_LOG_WARN_F( "Found ", deg, " degenerated primitives");
+    }
+    return false;
+}
diff --git a/thirdparty/assimp/code/FindDegenerates.h b/thirdparty/assimp/code/FindDegenerates.h
new file mode 100644
index 0000000000..880f5f16a2
--- /dev/null
+++ b/thirdparty/assimp/code/FindDegenerates.h
@@ -0,0 +1,129 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to search all meshes for
+  degenerated faces */
+#ifndef AI_FINDDEGENERATESPROCESS_H_INC
+#define AI_FINDDEGENERATESPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+class FindDegeneratesProcessTest;
+namespace Assimp    {
+
+
+// ---------------------------------------------------------------------------
+/** FindDegeneratesProcess: Searches a mesh for degenerated triangles.
+*/
+class ASSIMP_API FindDegeneratesProcess : public BaseProcess {
+public:
+    FindDegeneratesProcess();
+    ~FindDegeneratesProcess();
+
+    // -------------------------------------------------------------------
+    // Check whether step is active
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    // Execute step on a given scene
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    // Setup import settings
+    void SetupProperties(const Importer* pImp);
+
+    // -------------------------------------------------------------------
+    // Execute step on a given mesh
+    ///@returns true if the current mesh should be deleted, false otherwise
+    bool ExecuteOnMesh( aiMesh* mesh);
+
+    // -------------------------------------------------------------------
+    /// @brief Enable the instant removal of degenerated primitives
+    /// @param enabled  true for enabled.
+    void EnableInstantRemoval(bool enabled);
+
+    // -------------------------------------------------------------------
+    /// @brief Check whether instant removal is currently enabled
+    /// @return The instant removal state.
+    bool IsInstantRemoval() const;
+
+    // -------------------------------------------------------------------
+    /// @brief Enable the area check for triangles.
+    /// @param enabled  true for enabled.
+    void EnableAreaCheck( bool enabled );
+
+    // -------------------------------------------------------------------
+    /// @brief Check whether the area check is enabled.
+    /// @return The area check state.
+    bool isAreaCheckEnabled() const;
+
+private:
+    //! Configuration option: remove degenerates faces immediately
+    bool mConfigRemoveDegenerates;
+    //! Configuration option: check for area
+    bool mConfigCheckAreaOfTriangle;
+};
+
+inline
+void FindDegeneratesProcess::EnableInstantRemoval(bool enabled) {
+    mConfigRemoveDegenerates = enabled;
+}
+
+inline
+bool FindDegeneratesProcess::IsInstantRemoval() const {
+    return mConfigRemoveDegenerates;
+}
+
+inline
+void FindDegeneratesProcess::EnableAreaCheck( bool enabled ) {
+    mConfigCheckAreaOfTriangle = enabled;
+}
+
+inline
+bool FindDegeneratesProcess::isAreaCheckEnabled() const {
+    return mConfigCheckAreaOfTriangle;
+}
+
+} // Namespace Assimp
+
+#endif // !! AI_FINDDEGENERATESPROCESS_H_INC
diff --git a/thirdparty/assimp/code/FindInstancesProcess.cpp b/thirdparty/assimp/code/FindInstancesProcess.cpp
new file mode 100644
index 0000000000..be1138116e
--- /dev/null
+++ b/thirdparty/assimp/code/FindInstancesProcess.cpp
@@ -0,0 +1,277 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  FindInstancesProcess.cpp
+ *  @brief Implementation of the aiProcess_FindInstances postprocessing step
+*/
+
+
+#include "FindInstancesProcess.h"
+#include <memory>
+#include <stdio.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+FindInstancesProcess::FindInstancesProcess()
+:   configSpeedFlag (false)
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FindInstancesProcess::~FindInstancesProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool FindInstancesProcess::IsActive( unsigned int pFlags) const
+{
+    // FindInstances makes absolutely no sense together with PreTransformVertices
+    // fixme: spawn error message somewhere else?
+    return 0 != (pFlags & aiProcess_FindInstances) && 0 == (pFlags & aiProcess_PreTransformVertices);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup properties for the step
+void FindInstancesProcess::SetupProperties(const Importer* pImp)
+{
+    // AI_CONFIG_FAVOUR_SPEED
+    configSpeedFlag = (0 != pImp->GetPropertyInteger(AI_CONFIG_FAVOUR_SPEED,0));
+}
+
+// ------------------------------------------------------------------------------------------------
+// Compare the bones of two meshes
+bool CompareBones(const aiMesh* orig, const aiMesh* inst)
+{
+    for (unsigned int i = 0; i < orig->mNumBones;++i) {
+        aiBone* aha = orig->mBones[i];
+        aiBone* oha = inst->mBones[i];
+
+        if (aha->mNumWeights   != oha->mNumWeights   ||
+            aha->mOffsetMatrix != oha->mOffsetMatrix) {
+            return false;
+        }
+
+        // compare weight per weight ---
+        for (unsigned int n = 0; n < aha->mNumWeights;++n) {
+            if  (aha->mWeights[n].mVertexId != oha->mWeights[n].mVertexId ||
+                (aha->mWeights[n].mWeight - oha->mWeights[n].mWeight) < 10e-3f) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Update mesh indices in the node graph
+void UpdateMeshIndices(aiNode* node, unsigned int* lookup)
+{
+    for (unsigned int n = 0; n < node->mNumMeshes;++n)
+        node->mMeshes[n] = lookup[node->mMeshes[n]];
+
+    for (unsigned int n = 0; n < node->mNumChildren;++n)
+        UpdateMeshIndices(node->mChildren[n],lookup);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void FindInstancesProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("FindInstancesProcess begin");
+    if (pScene->mNumMeshes) {
+
+        // use a pseudo hash for all meshes in the scene to quickly find
+        // the ones which are possibly equal. This step is executed early
+        // in the pipeline, so we could, depending on the file format,
+        // have several thousand small meshes. That's too much for a brute
+        // everyone-against-everyone check involving up to 10 comparisons
+        // each.
+        std::unique_ptr<uint64_t[]> hashes (new uint64_t[pScene->mNumMeshes]);
+        std::unique_ptr<unsigned int[]> remapping (new unsigned int[pScene->mNumMeshes]);
+
+        unsigned int numMeshesOut = 0;
+        for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+
+            aiMesh* inst = pScene->mMeshes[i];
+            hashes[i] = GetMeshHash(inst);
+
+            for (int a = i-1; a >= 0; --a) {
+                if (hashes[i] == hashes[a])
+                {
+                    aiMesh* orig = pScene->mMeshes[a];
+                    if (!orig)
+                        continue;
+
+                    // check for hash collision .. we needn't check
+                    // the vertex format, it *must* match due to the
+                    // (brilliant) construction of the hash
+                    if (orig->mNumBones       != inst->mNumBones      ||
+                        orig->mNumFaces       != inst->mNumFaces      ||
+                        orig->mNumVertices    != inst->mNumVertices   ||
+                        orig->mMaterialIndex  != inst->mMaterialIndex ||
+                        orig->mPrimitiveTypes != inst->mPrimitiveTypes)
+                        continue;
+
+                    // up to now the meshes are equal. find an appropriate
+                    // epsilon to compare position differences against
+                    float epsilon = ComputePositionEpsilon(inst);
+                    epsilon *= epsilon;
+
+                    // now compare vertex positions, normals,
+                    // tangents and bitangents using this epsilon.
+                    if (orig->HasPositions()) {
+                        if(!CompareArrays(orig->mVertices,inst->mVertices,orig->mNumVertices,epsilon))
+                            continue;
+                    }
+                    if (orig->HasNormals()) {
+                        if(!CompareArrays(orig->mNormals,inst->mNormals,orig->mNumVertices,epsilon))
+                            continue;
+                    }
+                    if (orig->HasTangentsAndBitangents()) {
+                        if (!CompareArrays(orig->mTangents,inst->mTangents,orig->mNumVertices,epsilon) ||
+                            !CompareArrays(orig->mBitangents,inst->mBitangents,orig->mNumVertices,epsilon))
+                            continue;
+                    }
+
+                    // use a constant epsilon for colors and UV coordinates
+                    static const float uvEpsilon = 10e-4f;
+                    {
+                        unsigned int j, end = orig->GetNumUVChannels();
+                        for(j = 0; j < end; ++j) {
+                            if (!orig->mTextureCoords[j]) {
+                                continue;
+                            }
+                            if(!CompareArrays(orig->mTextureCoords[j],inst->mTextureCoords[j],orig->mNumVertices,uvEpsilon)) {
+                                break;
+                            }
+                        }
+                        if (j != end) {
+                            continue;
+                        }
+                    }
+                    {
+                        unsigned int j, end = orig->GetNumColorChannels();
+                        for(j = 0; j < end; ++j) {
+                            if (!orig->mColors[j]) {
+                                continue;
+                            }
+                            if(!CompareArrays(orig->mColors[j],inst->mColors[j],orig->mNumVertices,uvEpsilon)) {
+                                break;
+                            }
+                        }
+                        if (j != end) {
+                            continue;
+                        }
+                    }
+
+                    // These two checks are actually quite expensive and almost *never* required.
+                    // Almost. That's why they're still here. But there's no reason to do them
+                    // in speed-targeted imports.
+                    if (!configSpeedFlag) {
+
+                        // It seems to be strange, but we really need to check whether the
+                        // bones are identical too. Although it's extremely unprobable
+                        // that they're not if control reaches here, we need to deal
+                        // with unprobable cases, too. It could still be that there are
+                        // equal shapes which are deformed differently.
+                        if (!CompareBones(orig,inst))
+                            continue;
+
+                        // For completeness ... compare even the index buffers for equality
+                        // face order & winding order doesn't care. Input data is in verbose format.
+                        std::unique_ptr<unsigned int[]> ftbl_orig(new unsigned int[orig->mNumVertices]);
+                        std::unique_ptr<unsigned int[]> ftbl_inst(new unsigned int[orig->mNumVertices]);
+
+                        for (unsigned int tt = 0; tt < orig->mNumFaces;++tt) {
+                            aiFace& f = orig->mFaces[tt];
+                            for (unsigned int nn = 0; nn < f.mNumIndices;++nn)
+                                ftbl_orig[f.mIndices[nn]] = tt;
+
+                            aiFace& f2 = inst->mFaces[tt];
+                            for (unsigned int nn = 0; nn < f2.mNumIndices;++nn)
+                                ftbl_inst[f2.mIndices[nn]] = tt;
+                        }
+                        if (0 != ::memcmp(ftbl_inst.get(),ftbl_orig.get(),orig->mNumVertices*sizeof(unsigned int)))
+                            continue;
+                    }
+
+                    // We're still here. Or in other words: 'inst' is an instance of 'orig'.
+                    // Place a marker in our list that we can easily update mesh indices.
+                    remapping[i] = remapping[a];
+
+                    // Delete the instanced mesh, we don't need it anymore
+                    delete inst;
+                    pScene->mMeshes[i] = NULL;
+                    break;
+                }
+            }
+
+            // If we didn't find a match for the current mesh: keep it
+            if (pScene->mMeshes[i]) {
+                remapping[i] = numMeshesOut++;
+            }
+        }
+        ai_assert(0 != numMeshesOut);
+        if (numMeshesOut != pScene->mNumMeshes) {
+
+            // Collapse the meshes array by removing all NULL entries
+            for (unsigned int real = 0, i = 0; real < numMeshesOut; ++i) {
+                if (pScene->mMeshes[i])
+                    pScene->mMeshes[real++] = pScene->mMeshes[i];
+            }
+
+            // And update the node graph with our nice lookup table
+            UpdateMeshIndices(pScene->mRootNode,remapping.get());
+
+            // write to log
+            if (!DefaultLogger::isNullLogger()) {
+                ASSIMP_LOG_INFO_F( "FindInstancesProcess finished. Found ", (pScene->mNumMeshes - numMeshesOut), " instances" );
+            }
+            pScene->mNumMeshes = numMeshesOut;
+        } else {
+            ASSIMP_LOG_DEBUG("FindInstancesProcess finished. No instanced meshes found");
+        }
+    }
+}
diff --git a/thirdparty/assimp/code/FindInstancesProcess.h b/thirdparty/assimp/code/FindInstancesProcess.h
new file mode 100644
index 0000000000..ab4a371c71
--- /dev/null
+++ b/thirdparty/assimp/code/FindInstancesProcess.h
@@ -0,0 +1,137 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  FindInstancesProcess.h
+ *  @brief Declares the aiProcess_FindInstances post-process step
+ */
+#ifndef AI_FINDINSTANCES_H_INC
+#define AI_FINDINSTANCES_H_INC
+
+#include "BaseProcess.h"
+#include "ProcessHelper.h"
+
+class FindInstancesProcessTest;
+namespace Assimp    {
+
+// -------------------------------------------------------------------------------
+/** @brief Get a pseudo(!)-hash representing a mesh.
+ *
+ *  The hash is built from number of vertices, faces, primitive types,
+ *  .... but *not* from the real mesh data. The funcction is not a perfect hash.
+ *  @param in Input mesh
+ *  @return Hash.
+ */
+inline
+uint64_t GetMeshHash(aiMesh* in) {
+    ai_assert(nullptr != in);
+
+    // ... get an unique value representing the vertex format of the mesh
+    const unsigned int fhash = GetMeshVFormatUnique(in);
+
+    // and bake it with number of vertices/faces/bones/matidx/ptypes
+    return ((uint64_t)fhash << 32u) | ((
+        (in->mNumBones << 16u) ^  (in->mNumVertices)       ^
+        (in->mNumFaces<<4u)    ^  (in->mMaterialIndex<<15) ^
+        (in->mPrimitiveTypes<<28)) & 0xffffffff );
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Perform a component-wise comparison of two arrays
+ *
+ *  @param first First array
+ *  @param second Second array
+ *  @param size Size of both arrays
+ *  @param e Epsilon
+ *  @return true if the arrays are identical
+ */
+inline
+bool CompareArrays(const aiVector3D* first, const aiVector3D* second,
+        unsigned int size, float e) {
+    for (const aiVector3D* end = first+size; first != end; ++first,++second) {
+        if ( (*first - *second).SquareLength() >= e)
+            return false;
+    }
+    return true;
+}
+
+// and the same for colors ...
+inline bool CompareArrays(const aiColor4D* first, const aiColor4D* second,
+    unsigned int size, float e)
+{
+    for (const aiColor4D* end = first+size; first != end; ++first,++second) {
+        if ( GetColorDifference(*first,*second) >= e)
+            return false;
+    }
+    return true;
+}
+
+// ---------------------------------------------------------------------------
+/** @brief A post-processing steps to search for instanced meshes
+*/
+class FindInstancesProcess : public BaseProcess
+{
+public:
+
+    FindInstancesProcess();
+    ~FindInstancesProcess();
+
+public:
+    // -------------------------------------------------------------------
+    // Check whether step is active in given flags combination
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    // Execute step on a given scene
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    // Setup properties prior to executing the process
+    void SetupProperties(const Importer* pImp);
+
+private:
+
+    bool configSpeedFlag;
+
+}; // ! end class FindInstancesProcess
+}  // ! end namespace Assimp
+
+#endif // !! AI_FINDINSTANCES_H_INC
diff --git a/thirdparty/assimp/code/FindInvalidDataProcess.cpp b/thirdparty/assimp/code/FindInvalidDataProcess.cpp
new file mode 100644
index 0000000000..433f042448
--- /dev/null
+++ b/thirdparty/assimp/code/FindInvalidDataProcess.cpp
@@ -0,0 +1,424 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to search an importer's output
+    for data that is obviously invalid  */
+
+
+
+#ifndef ASSIMP_BUILD_NO_FINDINVALIDDATA_PROCESS
+
+// internal headers
+#include "FindInvalidDataProcess.h"
+#include "ProcessHelper.h"
+
+#include <assimp/Macros.h>
+#include <assimp/Exceptional.h>
+#include <assimp/qnan.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+FindInvalidDataProcess::FindInvalidDataProcess()
+: configEpsilon(0.0)
+, mIgnoreTexCoods( false ){
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FindInvalidDataProcess::~FindInvalidDataProcess() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool FindInvalidDataProcess::IsActive( unsigned int pFlags) const {
+    return 0 != (pFlags & aiProcess_FindInvalidData);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup import configuration
+void FindInvalidDataProcess::SetupProperties(const Importer* pImp) {
+    // Get the current value of AI_CONFIG_PP_FID_ANIM_ACCURACY
+    configEpsilon = (0 != pImp->GetPropertyFloat(AI_CONFIG_PP_FID_ANIM_ACCURACY,0.f));
+    mIgnoreTexCoods = pImp->GetPropertyBool(AI_CONFIG_PP_FID_IGNORE_TEXTURECOORDS, false);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Update mesh references in the node graph
+void UpdateMeshReferences(aiNode* node, const std::vector<unsigned int>& meshMapping) {
+    if (node->mNumMeshes)   {
+        unsigned int out = 0;
+        for (unsigned int a = 0; a < node->mNumMeshes;++a)  {
+
+            unsigned int ref = node->mMeshes[a];
+            if (UINT_MAX != (ref = meshMapping[ref]))   {
+                node->mMeshes[out++] = ref;
+            }
+        }
+        // just let the members that are unused, that's much cheaper
+        // than a full array realloc'n'copy party ...
+        if(!(node->mNumMeshes = out))   {
+
+            delete[] node->mMeshes;
+            node->mMeshes = NULL;
+        }
+    }
+    // recursively update all children
+    for (unsigned int i = 0; i < node->mNumChildren;++i) {
+        UpdateMeshReferences(node->mChildren[i],meshMapping);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void FindInvalidDataProcess::Execute( aiScene* pScene) {
+    ASSIMP_LOG_DEBUG("FindInvalidDataProcess begin");
+
+    bool out = false;
+    std::vector<unsigned int> meshMapping(pScene->mNumMeshes);
+    unsigned int real = 0;
+
+    // Process meshes
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++)   {
+
+        int result;
+        if ((result = ProcessMesh( pScene->mMeshes[a])))    {
+            out = true;
+
+            if (2 == result)    {
+                // remove this mesh
+                delete pScene->mMeshes[a];
+                AI_DEBUG_INVALIDATE_PTR(pScene->mMeshes[a]);
+
+                meshMapping[a] = UINT_MAX;
+                continue;
+            }
+        }
+        pScene->mMeshes[real] = pScene->mMeshes[a];
+        meshMapping[a] = real++;
+    }
+
+    // Process animations
+    for (unsigned int a = 0; a < pScene->mNumAnimations;++a) {
+        ProcessAnimation( pScene->mAnimations[a]);
+    }
+
+
+    if (out)    {
+        if ( real != pScene->mNumMeshes)    {
+            if (!real) {
+                throw DeadlyImportError("No meshes remaining");
+            }
+
+            // we need to remove some meshes.
+            // therefore we'll also need to remove all references
+            // to them from the scenegraph
+            UpdateMeshReferences(pScene->mRootNode,meshMapping);
+            pScene->mNumMeshes = real;
+        }
+
+        ASSIMP_LOG_INFO("FindInvalidDataProcess finished. Found issues ...");
+    } else {
+        ASSIMP_LOG_DEBUG("FindInvalidDataProcess finished. Everything seems to be OK.");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline
+const char* ValidateArrayContents(const T* /*arr*/, unsigned int /*size*/,
+        const std::vector<bool>& /*dirtyMask*/, bool /*mayBeIdentical = false*/, bool /*mayBeZero = true*/)
+{
+    return nullptr;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <>
+inline
+const char* ValidateArrayContents<aiVector3D>(const aiVector3D* arr, unsigned int size,
+        const std::vector<bool>& dirtyMask, bool mayBeIdentical , bool mayBeZero ) {
+    bool b = false;
+    unsigned int cnt = 0;
+    for (unsigned int i = 0; i < size;++i)  {
+
+        if (dirtyMask.size() && dirtyMask[i]) {
+            continue;
+        }
+        ++cnt;
+
+        const aiVector3D& v = arr[i];
+        if (is_special_float(v.x) || is_special_float(v.y) || is_special_float(v.z))    {
+            return "INF/NAN was found in a vector component";
+        }
+        if (!mayBeZero && !v.x && !v.y && !v.z )    {
+            return "Found zero-length vector";
+        }
+        if (i && v != arr[i-1])b = true;
+    }
+    if (cnt > 1 && !b && !mayBeIdentical) {
+        return "All vectors are identical";
+    }
+    return nullptr;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline 
+bool ProcessArray(T*& in, unsigned int num,const char* name,
+        const std::vector<bool>& dirtyMask, bool mayBeIdentical = false, bool mayBeZero = true) {
+    const char* err = ValidateArrayContents(in,num,dirtyMask,mayBeIdentical,mayBeZero);
+    if (err)    {
+        ASSIMP_LOG_ERROR_F( "FindInvalidDataProcess fails on mesh ", name, ": ", err);
+        delete[] in;
+        in = NULL;
+        return true;
+    }
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+AI_FORCE_INLINE bool EpsilonCompare(const T& n, const T& s, ai_real epsilon);
+
+// ------------------------------------------------------------------------------------------------
+AI_FORCE_INLINE bool EpsilonCompare(ai_real n, ai_real s, ai_real epsilon) {
+    return std::fabs(n-s)>epsilon;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <>
+bool EpsilonCompare<aiVectorKey>(const aiVectorKey& n, const aiVectorKey& s, ai_real epsilon) {
+    return
+        EpsilonCompare(n.mValue.x,s.mValue.x,epsilon) &&
+        EpsilonCompare(n.mValue.y,s.mValue.y,epsilon) &&
+        EpsilonCompare(n.mValue.z,s.mValue.z,epsilon);
+}
+
+// ------------------------------------------------------------------------------------------------
+template <>
+bool EpsilonCompare<aiQuatKey>(const aiQuatKey& n, const aiQuatKey& s, ai_real epsilon)   {
+    return
+        EpsilonCompare(n.mValue.x,s.mValue.x,epsilon) &&
+        EpsilonCompare(n.mValue.y,s.mValue.y,epsilon) &&
+        EpsilonCompare(n.mValue.z,s.mValue.z,epsilon) &&
+        EpsilonCompare(n.mValue.w,s.mValue.w,epsilon);
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline
+bool AllIdentical(T* in, unsigned int num, ai_real epsilon) {
+    if (num <= 1) {
+        return true;
+    }
+
+    if (fabs(epsilon) > 0.f) {
+        for (unsigned int i = 0; i < num-1;++i) {
+            if (!EpsilonCompare(in[i],in[i+1],epsilon)) {
+                return false;
+            }
+        }
+    } else {
+        for (unsigned int i = 0; i < num-1;++i) {
+            if (in[i] != in[i+1]) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Search an animation for invalid content
+void FindInvalidDataProcess::ProcessAnimation (aiAnimation* anim) {
+    // Process all animation channels
+    for ( unsigned int a = 0; a < anim->mNumChannels; ++a ) {
+        ProcessAnimationChannel( anim->mChannels[a]);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void FindInvalidDataProcess::ProcessAnimationChannel (aiNodeAnim* anim) {
+    ai_assert( nullptr != anim );
+    if (anim->mNumPositionKeys == 0 && anim->mNumRotationKeys == 0 && anim->mNumScalingKeys == 0) {
+        ai_assert_entry();
+        return;
+    }
+
+    // Check whether all values in a tracks are identical - in this case
+    // we can remove al keys except one.
+    // POSITIONS
+    int i = 0;
+    if (anim->mNumPositionKeys > 1 && AllIdentical(anim->mPositionKeys,anim->mNumPositionKeys,configEpsilon)) {
+        aiVectorKey v = anim->mPositionKeys[0];
+
+        // Reallocate ... we need just ONE element, it makes no sense to reuse the array
+        delete[] anim->mPositionKeys;
+        anim->mPositionKeys = new aiVectorKey[anim->mNumPositionKeys = 1];
+        anim->mPositionKeys[0] = v;
+        i = 1;
+    }
+
+    // ROTATIONS
+    if (anim->mNumRotationKeys > 1 && AllIdentical(anim->mRotationKeys,anim->mNumRotationKeys,configEpsilon)) {
+        aiQuatKey v = anim->mRotationKeys[0];
+
+        // Reallocate ... we need just ONE element, it makes no sense to reuse the array
+        delete[] anim->mRotationKeys;
+        anim->mRotationKeys = new aiQuatKey[anim->mNumRotationKeys = 1];
+        anim->mRotationKeys[0] = v;
+        i = 1;
+    }
+
+    // SCALINGS
+    if (anim->mNumScalingKeys > 1 && AllIdentical(anim->mScalingKeys,anim->mNumScalingKeys,configEpsilon)) {
+        aiVectorKey v = anim->mScalingKeys[0];
+
+        // Reallocate ... we need just ONE element, it makes no sense to reuse the array
+        delete[] anim->mScalingKeys;
+        anim->mScalingKeys = new aiVectorKey[anim->mNumScalingKeys = 1];
+        anim->mScalingKeys[0] = v;
+        i = 1;
+    }
+    if ( 1 == i ) {
+        ASSIMP_LOG_WARN("Simplified dummy tracks with just one key");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Search a mesh for invalid contents
+int FindInvalidDataProcess::ProcessMesh(aiMesh* pMesh)
+{
+    bool ret = false;
+    std::vector<bool> dirtyMask(pMesh->mNumVertices, pMesh->mNumFaces != 0);
+
+    // Ignore elements that are not referenced by vertices.
+    // (they are, for example, caused by the FindDegenerates step)
+    for (unsigned int m = 0; m < pMesh->mNumFaces; ++m) {
+        const aiFace& f = pMesh->mFaces[m];
+
+        for (unsigned int i = 0; i < f.mNumIndices; ++i) {
+            dirtyMask[f.mIndices[i]] = false;
+        }
+    }
+
+    // Process vertex positions
+    if (pMesh->mVertices && ProcessArray(pMesh->mVertices, pMesh->mNumVertices, "positions", dirtyMask)) {
+        ASSIMP_LOG_ERROR("Deleting mesh: Unable to continue without vertex positions");
+
+        return 2;
+    }
+
+    // process texture coordinates
+    if (!mIgnoreTexCoods) {
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS && pMesh->mTextureCoords[i]; ++i) {
+            if (ProcessArray(pMesh->mTextureCoords[i], pMesh->mNumVertices, "uvcoords", dirtyMask)) {
+                pMesh->mNumUVComponents[i] = 0;
+
+                // delete all subsequent texture coordinate sets.
+                for (unsigned int a = i + 1; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a) {
+                    delete[] pMesh->mTextureCoords[a];
+                    pMesh->mTextureCoords[a] = NULL;
+                    pMesh->mNumUVComponents[a] = 0;
+                }
+
+                ret = true;
+            }
+        }
+    }
+
+    // -- we don't validate vertex colors, it's difficult to say whether
+    // they are invalid or not.
+
+    // Normals and tangents are undefined for point and line faces.
+    if (pMesh->mNormals || pMesh->mTangents)    {
+
+        if (aiPrimitiveType_POINT & pMesh->mPrimitiveTypes ||
+            aiPrimitiveType_LINE  & pMesh->mPrimitiveTypes)
+        {
+            if (aiPrimitiveType_TRIANGLE & pMesh->mPrimitiveTypes ||
+                aiPrimitiveType_POLYGON  & pMesh->mPrimitiveTypes)
+            {
+                // We need to update the lookup-table
+                for (unsigned int m = 0; m < pMesh->mNumFaces;++m) {
+                    const aiFace& f = pMesh->mFaces[ m ];
+
+                    if (f.mNumIndices < 3)  {
+                        dirtyMask[f.mIndices[0]] = true;
+                        if (f.mNumIndices == 2) {
+                            dirtyMask[f.mIndices[1]] = true;
+                        }
+                    }
+                }
+            }
+            // Normals, tangents and bitangents are undefined for
+            // the whole mesh (and should not even be there)
+            else {
+                return ret;
+            }
+        }
+
+        // Process mesh normals
+        if (pMesh->mNormals && ProcessArray(pMesh->mNormals,pMesh->mNumVertices,
+            "normals",dirtyMask,true,false))
+            ret = true;
+
+        // Process mesh tangents
+        if (pMesh->mTangents && ProcessArray(pMesh->mTangents,pMesh->mNumVertices,"tangents",dirtyMask))    {
+            delete[] pMesh->mBitangents; pMesh->mBitangents = NULL;
+            ret = true;
+        }
+
+        // Process mesh bitangents
+        if (pMesh->mBitangents && ProcessArray(pMesh->mBitangents,pMesh->mNumVertices,"bitangents",dirtyMask))  {
+            delete[] pMesh->mTangents; pMesh->mTangents = NULL;
+            ret = true;
+        }
+    }
+    return ret ? 1 : 0;
+}
+
+#endif // !! ASSIMP_BUILD_NO_FINDINVALIDDATA_PROCESS
diff --git a/thirdparty/assimp/code/FindInvalidDataProcess.h b/thirdparty/assimp/code/FindInvalidDataProcess.h
new file mode 100644
index 0000000000..8504fb7b1f
--- /dev/null
+++ b/thirdparty/assimp/code/FindInvalidDataProcess.h
@@ -0,0 +1,105 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to search an importer's output
+ *   for data that is obviously invalid
+ */
+#ifndef AI_FINDINVALIDDATA_H_INC
+#define AI_FINDINVALIDDATA_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/types.h>
+#include <assimp/anim.h>
+
+struct aiMesh;
+
+class FindInvalidDataProcessTest;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** The FindInvalidData post-processing step. It searches the mesh data
+ *  for parts that are obviously invalid and removes them.
+ *
+ *  Originally this was a workaround for some models written by Blender
+ *  which have zero normal vectors. */
+class ASSIMP_API FindInvalidDataProcess : public BaseProcess {
+public:
+    FindInvalidDataProcess();
+    ~FindInvalidDataProcess();
+
+    // -------------------------------------------------------------------
+    //
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    // Setup import settings
+    void SetupProperties(const Importer* pImp);
+
+    // -------------------------------------------------------------------
+    // Run the step
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    /** Executes the post-processing step on the given mesh
+     * @param pMesh The mesh to process.
+     * @return 0 - nothing, 1 - removed sth, 2 - please delete me  */
+    int ProcessMesh( aiMesh* pMesh);
+
+    // -------------------------------------------------------------------
+    /** Executes the post-processing step on the given animation
+     * @param anim The animation to process.  */
+    void ProcessAnimation (aiAnimation* anim);
+
+    // -------------------------------------------------------------------
+    /** Executes the post-processing step on the given anim channel
+     * @param anim The animation channel to process.*/
+    void ProcessAnimationChannel (aiNodeAnim* anim);
+
+private:
+    ai_real configEpsilon;
+    bool mIgnoreTexCoods;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_AI_FINDINVALIDDATA_H_INC
diff --git a/thirdparty/assimp/code/FixNormalsStep.cpp b/thirdparty/assimp/code/FixNormalsStep.cpp
new file mode 100644
index 0000000000..bbbe6899b4
--- /dev/null
+++ b/thirdparty/assimp/code/FixNormalsStep.cpp
@@ -0,0 +1,184 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to invert
+ * all normals in meshes with infacing normals.
+ */
+
+// internal headers
+#include "FixNormalsStep.h"
+#include <assimp/StringUtils.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <stdio.h>
+
+
+using namespace Assimp;
+
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+FixInfacingNormalsProcess::FixInfacingNormalsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+FixInfacingNormalsProcess::~FixInfacingNormalsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool FixInfacingNormalsProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_FixInfacingNormals) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void FixInfacingNormalsProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("FixInfacingNormalsProcess begin");
+
+    bool bHas( false );
+    for (unsigned int a = 0; a < pScene->mNumMeshes; ++a) {
+        if (ProcessMesh(pScene->mMeshes[a], a)) {
+            bHas = true;
+        }
+    }
+
+    if (bHas) {
+        ASSIMP_LOG_DEBUG("FixInfacingNormalsProcess finished. Found issues.");
+    } else {
+        ASSIMP_LOG_DEBUG("FixInfacingNormalsProcess finished. No changes to the scene.");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Apply the step to the mesh
+bool FixInfacingNormalsProcess::ProcessMesh( aiMesh* pcMesh, unsigned int index)
+{
+    ai_assert(nullptr != pcMesh);
+
+    // Nothing to do if there are no model normals
+    if (!pcMesh->HasNormals()) {
+        return false;
+    }
+
+    // Compute the bounding box of both the model vertices + normals and
+    // the unmodified model vertices. Then check whether the first BB
+    // is smaller than the second. In this case we can assume that the
+    // normals need to be flipped, although there are a few special cases ..
+    // convex, concave, planar models ...
+
+    aiVector3D vMin0 (1e10f,1e10f,1e10f);
+    aiVector3D vMin1 (1e10f,1e10f,1e10f);
+    aiVector3D vMax0 (-1e10f,-1e10f,-1e10f);
+    aiVector3D vMax1 (-1e10f,-1e10f,-1e10f);
+
+    for (unsigned int i = 0; i < pcMesh->mNumVertices;++i)
+    {
+        vMin1.x = std::min(vMin1.x,pcMesh->mVertices[i].x);
+        vMin1.y = std::min(vMin1.y,pcMesh->mVertices[i].y);
+        vMin1.z = std::min(vMin1.z,pcMesh->mVertices[i].z);
+
+        vMax1.x = std::max(vMax1.x,pcMesh->mVertices[i].x);
+        vMax1.y = std::max(vMax1.y,pcMesh->mVertices[i].y);
+        vMax1.z = std::max(vMax1.z,pcMesh->mVertices[i].z);
+
+        const aiVector3D vWithNormal = pcMesh->mVertices[i] + pcMesh->mNormals[i];
+
+        vMin0.x = std::min(vMin0.x,vWithNormal.x);
+        vMin0.y = std::min(vMin0.y,vWithNormal.y);
+        vMin0.z = std::min(vMin0.z,vWithNormal.z);
+
+        vMax0.x = std::max(vMax0.x,vWithNormal.x);
+        vMax0.y = std::max(vMax0.y,vWithNormal.y);
+        vMax0.z = std::max(vMax0.z,vWithNormal.z);
+    }
+
+    const float fDelta0_x = (vMax0.x - vMin0.x);
+    const float fDelta0_y = (vMax0.y - vMin0.y);
+    const float fDelta0_z = (vMax0.z - vMin0.z);
+
+    const float fDelta1_x = (vMax1.x - vMin1.x);
+    const float fDelta1_y = (vMax1.y - vMin1.y);
+    const float fDelta1_z = (vMax1.z - vMin1.z);
+
+    // Check whether the boxes are overlapping
+    if ((fDelta0_x > 0.0f) != (fDelta1_x > 0.0f))return false;
+    if ((fDelta0_y > 0.0f) != (fDelta1_y > 0.0f))return false;
+    if ((fDelta0_z > 0.0f) != (fDelta1_z > 0.0f))return false;
+
+    // Check whether this is a planar surface
+    const float fDelta1_yz = fDelta1_y * fDelta1_z;
+
+    if (fDelta1_x < 0.05f * std::sqrt( fDelta1_yz ))return false;
+    if (fDelta1_y < 0.05f * std::sqrt( fDelta1_z * fDelta1_x ))return false;
+    if (fDelta1_z < 0.05f * std::sqrt( fDelta1_y * fDelta1_x ))return false;
+
+    // now compare the volumes of the bounding boxes
+    if (std::fabs(fDelta0_x * fDelta0_y * fDelta0_z) < std::fabs(fDelta1_x * fDelta1_yz)) {
+        if (!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_INFO_F("Mesh ", index, ": Normals are facing inwards (or the mesh is planar)", index);
+        }
+
+        // Invert normals
+        for (unsigned int i = 0; i < pcMesh->mNumVertices;++i)
+            pcMesh->mNormals[i] *= -1.0f;
+
+        // ... and flip faces
+        for (unsigned int i = 0; i < pcMesh->mNumFaces;++i)
+        {
+            aiFace& face = pcMesh->mFaces[i];
+            for( unsigned int b = 0; b < face.mNumIndices / 2; b++)
+                std::swap( face.mIndices[b], face.mIndices[ face.mNumIndices - 1 - b]);
+        }
+        return true;
+    }
+    return false;
+}
diff --git a/thirdparty/assimp/code/FixNormalsStep.h b/thirdparty/assimp/code/FixNormalsStep.h
new file mode 100644
index 0000000000..6be27faef6
--- /dev/null
+++ b/thirdparty/assimp/code/FixNormalsStep.h
@@ -0,0 +1,91 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+
+/** @file Defines a post processing step to fix infacing normals */
+#ifndef AI_FIXNORMALSPROCESS_H_INC
+#define AI_FIXNORMALSPROCESS_H_INC
+
+#include "BaseProcess.h"
+
+struct aiMesh;
+
+namespace Assimp
+{
+
+// ---------------------------------------------------------------------------
+/** The FixInfacingNormalsProcess tries to determine whether the normal
+ * vectors of an object are facing inwards. In this case they will be
+ * flipped.
+ */
+class FixInfacingNormalsProcess : public BaseProcess {
+public:
+    FixInfacingNormalsProcess();
+    ~FixInfacingNormalsProcess();
+
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+     * @param pFlags The processing flags the importer was called with. A bitwise
+     *   combination of #aiPostProcessSteps.
+     * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Executes the step on the given mesh
+     * @param pMesh The mesh to process.
+     */
+    bool ProcessMesh( aiMesh* pMesh, unsigned int index);
+};
+
+} // end of namespace Assimp
+
+#endif // AI_FIXNORMALSPROCESS_H_INC
diff --git a/thirdparty/assimp/code/GenFaceNormalsProcess.cpp b/thirdparty/assimp/code/GenFaceNormalsProcess.cpp
new file mode 100644
index 0000000000..028334dec7
--- /dev/null
+++ b/thirdparty/assimp/code/GenFaceNormalsProcess.cpp
@@ -0,0 +1,146 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to generate face
+* normals for all imported faces.
+*/
+
+
+#include "GenFaceNormalsProcess.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/Exceptional.h>
+#include <assimp/qnan.h>
+
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+GenFaceNormalsProcess::GenFaceNormalsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+GenFaceNormalsProcess::~GenFaceNormalsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool GenFaceNormalsProcess::IsActive( unsigned int pFlags) const {
+    force_ = (pFlags & aiProcess_ForceGenNormals) != 0;
+    return  (pFlags & aiProcess_GenNormals) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void GenFaceNormalsProcess::Execute( aiScene* pScene) {
+    ASSIMP_LOG_DEBUG("GenFaceNormalsProcess begin");
+
+    if (pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) {
+        throw DeadlyImportError("Post-processing order mismatch: expecting pseudo-indexed (\"verbose\") vertices here");
+    }
+
+    bool bHas = false;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++)   {
+        if(this->GenMeshFaceNormals( pScene->mMeshes[a])) {
+            bHas = true;
+        }
+    }
+    if (bHas)   {
+        ASSIMP_LOG_INFO("GenFaceNormalsProcess finished. "
+            "Face normals have been calculated");
+    } else {
+        ASSIMP_LOG_DEBUG("GenFaceNormalsProcess finished. "
+            "Normals are already there");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+bool GenFaceNormalsProcess::GenMeshFaceNormals (aiMesh* pMesh)
+{
+    if (NULL != pMesh->mNormals) {
+        if (force_) delete[] pMesh->mNormals;
+        else return false;
+    }
+
+    // If the mesh consists of lines and/or points but not of
+    // triangles or higher-order polygons the normal vectors
+    // are undefined.
+    if (!(pMesh->mPrimitiveTypes & (aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON)))   {
+        ASSIMP_LOG_INFO("Normal vectors are undefined for line and point meshes");
+        return false;
+    }
+
+    // allocate an array to hold the output normals
+    pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
+    const float qnan = get_qnan();
+
+    // iterate through all faces and compute per-face normals but store them per-vertex.
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++) {
+        const aiFace& face = pMesh->mFaces[a];
+        if (face.mNumIndices < 3)   {
+            // either a point or a line -> no well-defined normal vector
+            for (unsigned int i = 0;i < face.mNumIndices;++i) {
+                pMesh->mNormals[face.mIndices[i]] = aiVector3D(qnan);
+            }
+            continue;
+        }
+
+        const aiVector3D* pV1 = &pMesh->mVertices[face.mIndices[0]];
+        const aiVector3D* pV2 = &pMesh->mVertices[face.mIndices[1]];
+        const aiVector3D* pV3 = &pMesh->mVertices[face.mIndices[face.mNumIndices-1]];
+        const aiVector3D vNor = ((*pV2 - *pV1) ^ (*pV3 - *pV1)).NormalizeSafe();
+
+        for (unsigned int i = 0;i < face.mNumIndices;++i) {
+            pMesh->mNormals[face.mIndices[i]] = vNor;
+        }
+    }
+    return true;
+}
diff --git a/thirdparty/assimp/code/GenFaceNormalsProcess.h b/thirdparty/assimp/code/GenFaceNormalsProcess.h
new file mode 100644
index 0000000000..c80ec9fddc
--- /dev/null
+++ b/thirdparty/assimp/code/GenFaceNormalsProcess.h
@@ -0,0 +1,87 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to compute face normals for all loaded faces*/
+#ifndef AI_GENFACENORMALPROCESS_H_INC
+#define AI_GENFACENORMALPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+namespace Assimp
+{
+
+// ---------------------------------------------------------------------------
+/** The GenFaceNormalsProcess computes face normals for all faces of all meshes
+*/
+class ASSIMP_API_WINONLY GenFaceNormalsProcess : public BaseProcess
+{
+public:
+
+    GenFaceNormalsProcess();
+    ~GenFaceNormalsProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+    * @param pFlags The processing flags the importer was called with. A bitwise
+    *   combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+
+private:
+    bool GenMeshFaceNormals(aiMesh* pcMesh);
+    mutable bool force_ = false;
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_GENFACENORMALPROCESS_H_INC
diff --git a/thirdparty/assimp/code/GenVertexNormalsProcess.cpp b/thirdparty/assimp/code/GenVertexNormalsProcess.cpp
new file mode 100644
index 0000000000..3f6c2f86bd
--- /dev/null
+++ b/thirdparty/assimp/code/GenVertexNormalsProcess.cpp
@@ -0,0 +1,239 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to generate face
+* normals for all imported faces.
+*/
+
+
+
+// internal headers
+#include "GenVertexNormalsProcess.h"
+#include "ProcessHelper.h"
+#include <assimp/Exceptional.h>
+#include <assimp/qnan.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+GenVertexNormalsProcess::GenVertexNormalsProcess()
+: configMaxAngle( AI_DEG_TO_RAD( 175.f ) ) {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+GenVertexNormalsProcess::~GenVertexNormalsProcess() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool GenVertexNormalsProcess::IsActive( unsigned int pFlags) const
+{
+    force_ = (pFlags & aiProcess_ForceGenNormals) != 0;
+    return (pFlags & aiProcess_GenSmoothNormals) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void GenVertexNormalsProcess::SetupProperties(const Importer* pImp)
+{
+    // Get the current value of the AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE property
+    configMaxAngle = pImp->GetPropertyFloat(AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE,(ai_real)175.0);
+    configMaxAngle = AI_DEG_TO_RAD(std::max(std::min(configMaxAngle,(ai_real)175.0),(ai_real)0.0));
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void GenVertexNormalsProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("GenVertexNormalsProcess begin");
+
+    if (pScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) {
+        throw DeadlyImportError("Post-processing order mismatch: expecting pseudo-indexed (\"verbose\") vertices here");
+    }
+
+    bool bHas = false;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; ++a) {
+        if(GenMeshVertexNormals( pScene->mMeshes[a],a))
+            bHas = true;
+    }
+
+    if (bHas)   {
+        ASSIMP_LOG_INFO("GenVertexNormalsProcess finished. "
+            "Vertex normals have been calculated");
+    } else {
+        ASSIMP_LOG_DEBUG("GenVertexNormalsProcess finished. "
+            "Normals are already there");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+bool GenVertexNormalsProcess::GenMeshVertexNormals (aiMesh* pMesh, unsigned int meshIndex)
+{
+    if (NULL != pMesh->mNormals) {
+        if (force_) delete[] pMesh->mNormals;
+        else return false;
+    }
+
+    // If the mesh consists of lines and/or points but not of
+    // triangles or higher-order polygons the normal vectors
+    // are undefined.
+    if (!(pMesh->mPrimitiveTypes & (aiPrimitiveType_TRIANGLE | aiPrimitiveType_POLYGON)))
+    {
+        ASSIMP_LOG_INFO("Normal vectors are undefined for line and point meshes");
+        return false;
+    }
+
+    // Allocate the array to hold the output normals
+    const float qnan = std::numeric_limits<ai_real>::quiet_NaN();
+    pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
+
+    // Compute per-face normals but store them per-vertex
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++)
+    {
+        const aiFace& face = pMesh->mFaces[a];
+        if (face.mNumIndices < 3)
+        {
+            // either a point or a line -> no normal vector
+            for (unsigned int i = 0;i < face.mNumIndices;++i) {
+                pMesh->mNormals[face.mIndices[i]] = aiVector3D(qnan);
+            }
+
+            continue;
+        }
+
+        const aiVector3D* pV1 = &pMesh->mVertices[face.mIndices[0]];
+        const aiVector3D* pV2 = &pMesh->mVertices[face.mIndices[1]];
+        const aiVector3D* pV3 = &pMesh->mVertices[face.mIndices[face.mNumIndices-1]];
+        const aiVector3D vNor = ((*pV2 - *pV1) ^ (*pV3 - *pV1)).NormalizeSafe();
+
+        for (unsigned int i = 0;i < face.mNumIndices;++i) {
+            pMesh->mNormals[face.mIndices[i]] = vNor;
+        }
+    }
+
+    // Set up a SpatialSort to quickly find all vertices close to a given position
+    // check whether we can reuse the SpatialSort of a previous step.
+    SpatialSort* vertexFinder = NULL;
+    SpatialSort  _vertexFinder;
+    ai_real posEpsilon = ai_real( 1e-5 );
+    if (shared) {
+        std::vector<std::pair<SpatialSort,ai_real> >* avf;
+        shared->GetProperty(AI_SPP_SPATIAL_SORT,avf);
+        if (avf)
+        {
+            std::pair<SpatialSort,ai_real>& blubb = avf->operator [] (meshIndex);
+            vertexFinder = &blubb.first;
+            posEpsilon = blubb.second;
+        }
+    }
+    if (!vertexFinder)  {
+        _vertexFinder.Fill(pMesh->mVertices, pMesh->mNumVertices, sizeof( aiVector3D));
+        vertexFinder = &_vertexFinder;
+        posEpsilon = ComputePositionEpsilon(pMesh);
+    }
+    std::vector<unsigned int> verticesFound;
+    aiVector3D* pcNew = new aiVector3D[pMesh->mNumVertices];
+
+    if (configMaxAngle >= AI_DEG_TO_RAD( 175.f ))   {
+        // There is no angle limit. Thus all vertices with positions close
+        // to each other will receive the same vertex normal. This allows us
+        // to optimize the whole algorithm a little bit ...
+        std::vector<bool> abHad(pMesh->mNumVertices,false);
+        for (unsigned int i = 0; i < pMesh->mNumVertices;++i)   {
+            if (abHad[i]) {
+                continue;
+            }
+
+            // Get all vertices that share this one ...
+            vertexFinder->FindPositions( pMesh->mVertices[i], posEpsilon, verticesFound);
+
+            aiVector3D pcNor;
+            for (unsigned int a = 0; a < verticesFound.size(); ++a) {
+                const aiVector3D& v = pMesh->mNormals[verticesFound[a]];
+                if (is_not_qnan(v.x))pcNor += v;
+            }
+            pcNor.NormalizeSafe();
+
+            // Write the smoothed normal back to all affected normals
+            for (unsigned int a = 0; a < verticesFound.size(); ++a)
+            {
+                unsigned int vidx = verticesFound[a];
+                pcNew[vidx] = pcNor;
+                abHad[vidx] = true;
+            }
+        }
+    }
+    // Slower code path if a smooth angle is set. There are many ways to achieve
+    // the effect, this one is the most straightforward one.
+    else    {
+        const ai_real fLimit = std::cos(configMaxAngle);
+        for (unsigned int i = 0; i < pMesh->mNumVertices;++i)   {
+            // Get all vertices that share this one ...
+            vertexFinder->FindPositions( pMesh->mVertices[i] , posEpsilon, verticesFound);
+
+            aiVector3D vr = pMesh->mNormals[i];
+
+            aiVector3D pcNor;
+            for (unsigned int a = 0; a < verticesFound.size(); ++a) {
+                aiVector3D v = pMesh->mNormals[verticesFound[a]];
+
+                // Check whether the angle between the two normals is not too large.
+                // Skip the angle check on our own normal to avoid false negatives
+                // (v*v is not guaranteed to be 1.0 for all unit vectors v)
+                if (is_not_qnan(v.x) && (verticesFound[a] == i || (v * vr >= fLimit)))
+                    pcNor += v;
+            }
+            pcNew[i] = pcNor.NormalizeSafe();
+        }
+    }
+
+    delete[] pMesh->mNormals;
+    pMesh->mNormals = pcNew;
+
+    return true;
+}
diff --git a/thirdparty/assimp/code/GenVertexNormalsProcess.h b/thirdparty/assimp/code/GenVertexNormalsProcess.h
new file mode 100644
index 0000000000..9142ad26f5
--- /dev/null
+++ b/thirdparty/assimp/code/GenVertexNormalsProcess.h
@@ -0,0 +1,115 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to compute vertex normals
+    for all loaded vertizes */
+#ifndef AI_GENVERTEXNORMALPROCESS_H_INC
+#define AI_GENVERTEXNORMALPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+class GenNormalsTest;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** The GenFaceNormalsProcess computes vertex normals for all vertizes
+*/
+class ASSIMP_API GenVertexNormalsProcess : public BaseProcess
+{
+public:
+
+    GenVertexNormalsProcess();
+    ~GenVertexNormalsProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag.
+    * @param pFlags The processing flags the importer was called with.
+    *   A bitwise combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields,
+    *   false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    void SetupProperties(const Importer* pImp);
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+
+    // setter for configMaxAngle
+    inline void SetMaxSmoothAngle(ai_real f)
+    {
+        configMaxAngle =f;
+    }
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Computes normals for a specific mesh
+    *  @param pcMesh Mesh
+    *  @param meshIndex Index of the mesh
+    *  @return true if vertex normals have been computed
+    */
+    bool GenMeshVertexNormals (aiMesh* pcMesh, unsigned int meshIndex);
+
+private:
+
+    /** Configuration option: maximum smoothing angle, in radians*/
+    ai_real configMaxAngle;
+    mutable bool force_ = false;
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_GENVERTEXNORMALPROCESS_H_INC
diff --git a/thirdparty/assimp/code/Importer.cpp b/thirdparty/assimp/code/Importer.cpp
new file mode 100644
index 0000000000..65b16471cc
--- /dev/null
+++ b/thirdparty/assimp/code/Importer.cpp
@@ -0,0 +1,1171 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  Importer.cpp
+ *  @brief Implementation of the CPP-API class #Importer
+ */
+
+#include <assimp/version.h>
+#include <assimp/config.h>
+#include <assimp/importerdesc.h>
+
+// ------------------------------------------------------------------------------------------------
+/* Uncomment this line to prevent Assimp from catching unknown exceptions.
+ *
+ * Note that any Exception except DeadlyImportError may lead to
+ * undefined behaviour -> loaders could remain in an unusable state and
+ * further imports with the same Importer instance could fail/crash/burn ...
+ */
+// ------------------------------------------------------------------------------------------------
+#ifndef ASSIMP_BUILD_DEBUG
+#   define ASSIMP_CATCH_GLOBAL_EXCEPTIONS
+#endif
+
+// ------------------------------------------------------------------------------------------------
+// Internal headers
+// ------------------------------------------------------------------------------------------------
+#include "Importer.h"
+#include <assimp/BaseImporter.h>
+#include "BaseProcess.h"
+
+#include "DefaultProgressHandler.h"
+#include <assimp/GenericProperty.h>
+#include "ProcessHelper.h"
+#include "ScenePreprocessor.h"
+#include "ScenePrivate.h"
+#include <assimp/MemoryIOWrapper.h>
+#include <assimp/Profiler.h>
+#include <assimp/TinyFormatter.h>
+#include <assimp/Exceptional.h>
+#include <assimp/Profiler.h>
+#include <set>
+#include <memory>
+#include <cctype>
+
+#include <assimp/DefaultIOStream.h>
+#include <assimp/DefaultIOSystem.h>
+
+#ifndef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+#   include "ValidateDataStructure.h"
+#endif
+
+using namespace Assimp::Profiling;
+using namespace Assimp::Formatter;
+
+namespace Assimp {
+    // ImporterRegistry.cpp
+    void GetImporterInstanceList(std::vector< BaseImporter* >& out);
+	void DeleteImporterInstanceList(std::vector< BaseImporter* >& out);
+
+    // PostStepRegistry.cpp
+    void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out);
+}
+
+using namespace Assimp;
+using namespace Assimp::Intern;
+
+// ------------------------------------------------------------------------------------------------
+// Intern::AllocateFromAssimpHeap serves as abstract base class. It overrides
+// new and delete (and their array counterparts) of public API classes (e.g. Logger) to
+// utilize our DLL heap.
+// See http://www.gotw.ca/publications/mill15.htm
+// ------------------------------------------------------------------------------------------------
+void* AllocateFromAssimpHeap::operator new ( size_t num_bytes)  {
+    return ::operator new(num_bytes);
+}
+
+void* AllocateFromAssimpHeap::operator new ( size_t num_bytes, const std::nothrow_t& ) throw()  {
+    try {
+        return AllocateFromAssimpHeap::operator new( num_bytes );
+    }
+    catch( ... )    {
+        return NULL;
+    }
+}
+
+void AllocateFromAssimpHeap::operator delete ( void* data)  {
+    return ::operator delete(data);
+}
+
+void* AllocateFromAssimpHeap::operator new[] ( size_t num_bytes)    {
+    return ::operator new[](num_bytes);
+}
+
+void* AllocateFromAssimpHeap::operator new[] ( size_t num_bytes, const std::nothrow_t& ) throw() {
+    try {
+        return AllocateFromAssimpHeap::operator new[]( num_bytes );
+    }
+    catch( ... )    {
+        return NULL;
+    }
+}
+
+void AllocateFromAssimpHeap::operator delete[] ( void* data)    {
+    return ::operator delete[](data);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Importer constructor.
+Importer::Importer()
+ : pimpl( new ImporterPimpl ) {
+    pimpl->mScene = NULL;
+    pimpl->mErrorString = "";
+
+    // Allocate a default IO handler
+    pimpl->mIOHandler = new DefaultIOSystem;
+    pimpl->mIsDefaultHandler = true;
+    pimpl->bExtraVerbose     = false; // disable extra verbose mode by default
+
+    pimpl->mProgressHandler = new DefaultProgressHandler();
+    pimpl->mIsDefaultProgressHandler = true;
+
+    GetImporterInstanceList(pimpl->mImporter);
+    GetPostProcessingStepInstanceList(pimpl->mPostProcessingSteps);
+
+    // Allocate a SharedPostProcessInfo object and store pointers to it in all post-process steps in the list.
+    pimpl->mPPShared = new SharedPostProcessInfo();
+    for (std::vector<BaseProcess*>::iterator it =  pimpl->mPostProcessingSteps.begin();
+        it != pimpl->mPostProcessingSteps.end();
+        ++it)   {
+
+        (*it)->SetSharedData(pimpl->mPPShared);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor of Importer
+Importer::~Importer()
+{
+    // Delete all import plugins
+	DeleteImporterInstanceList(pimpl->mImporter);
+
+    // Delete all post-processing plug-ins
+    for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++)
+        delete pimpl->mPostProcessingSteps[a];
+
+    // Delete the assigned IO and progress handler
+    delete pimpl->mIOHandler;
+    delete pimpl->mProgressHandler;
+
+    // Kill imported scene. Destructor's should do that recursively
+    delete pimpl->mScene;
+
+    // Delete shared post-processing data
+    delete pimpl->mPPShared;
+
+    // and finally the pimpl itself
+    delete pimpl;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Register a custom post-processing step
+aiReturn Importer::RegisterPPStep(BaseProcess* pImp)
+{
+    ai_assert(NULL != pImp);
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+
+        pimpl->mPostProcessingSteps.push_back(pImp);
+        ASSIMP_LOG_INFO("Registering custom post-processing step");
+
+    ASSIMP_END_EXCEPTION_REGION(aiReturn);
+    return AI_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Register a custom loader plugin
+aiReturn Importer::RegisterLoader(BaseImporter* pImp)
+{
+    ai_assert(NULL != pImp);
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+
+    // --------------------------------------------------------------------
+    // Check whether we would have two loaders for the same file extension
+    // This is absolutely OK, but we should warn the developer of the new
+    // loader that his code will probably never be called if the first
+    // loader is a bit too lazy in his file checking.
+    // --------------------------------------------------------------------
+    std::set<std::string> st;
+    std::string baked;
+    pImp->GetExtensionList(st);
+
+    for(std::set<std::string>::const_iterator it = st.begin(); it != st.end(); ++it) {
+
+#ifdef ASSIMP_BUILD_DEBUG
+        if (IsExtensionSupported(*it)) {
+            ASSIMP_LOG_WARN_F("The file extension ", *it, " is already in use");
+        }
+#endif
+        baked += *it;
+    }
+
+    // add the loader
+    pimpl->mImporter.push_back(pImp);
+    ASSIMP_LOG_INFO_F("Registering custom importer for these file extensions: ", baked);
+    ASSIMP_END_EXCEPTION_REGION(aiReturn);
+    return AI_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Unregister a custom loader plugin
+aiReturn Importer::UnregisterLoader(BaseImporter* pImp)
+{
+    if(!pImp) {
+        // unregistering a NULL importer is no problem for us ... really!
+        return AI_SUCCESS;
+    }
+
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    std::vector<BaseImporter*>::iterator it = std::find(pimpl->mImporter.begin(),
+        pimpl->mImporter.end(),pImp);
+
+    if (it != pimpl->mImporter.end())   {
+        pimpl->mImporter.erase(it);
+        ASSIMP_LOG_INFO("Unregistering custom importer: ");
+        return AI_SUCCESS;
+    }
+    ASSIMP_LOG_WARN("Unable to remove custom importer: I can't find you ...");
+    ASSIMP_END_EXCEPTION_REGION(aiReturn);
+    return AI_FAILURE;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Unregister a custom loader plugin
+aiReturn Importer::UnregisterPPStep(BaseProcess* pImp)
+{
+    if(!pImp) {
+        // unregistering a NULL ppstep is no problem for us ... really!
+        return AI_SUCCESS;
+    }
+
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    std::vector<BaseProcess*>::iterator it = std::find(pimpl->mPostProcessingSteps.begin(),
+        pimpl->mPostProcessingSteps.end(),pImp);
+
+    if (it != pimpl->mPostProcessingSteps.end())    {
+        pimpl->mPostProcessingSteps.erase(it);
+        ASSIMP_LOG_INFO("Unregistering custom post-processing step");
+        return AI_SUCCESS;
+    }
+    ASSIMP_LOG_WARN("Unable to remove custom post-processing step: I can't find you ..");
+    ASSIMP_END_EXCEPTION_REGION(aiReturn);
+    return AI_FAILURE;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Supplies a custom IO handler to the importer to open and access files.
+void Importer::SetIOHandler( IOSystem* pIOHandler)
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    // If the new handler is zero, allocate a default IO implementation.
+    if (!pIOHandler)
+    {
+        // Release pointer in the possession of the caller
+        pimpl->mIOHandler = new DefaultIOSystem();
+        pimpl->mIsDefaultHandler = true;
+    }
+    // Otherwise register the custom handler
+    else if (pimpl->mIOHandler != pIOHandler)
+    {
+        delete pimpl->mIOHandler;
+        pimpl->mIOHandler = pIOHandler;
+        pimpl->mIsDefaultHandler = false;
+    }
+    ASSIMP_END_EXCEPTION_REGION(void);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the currently set IO handler
+IOSystem* Importer::GetIOHandler() const {
+    return pimpl->mIOHandler;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Check whether a custom IO handler is currently set
+bool Importer::IsDefaultIOHandler() const {
+    return pimpl->mIsDefaultHandler;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Supplies a custom progress handler to get regular callbacks during importing
+void Importer::SetProgressHandler ( ProgressHandler* pHandler ) {
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    // If the new handler is zero, allocate a default implementation.
+    if (!pHandler)
+    {
+        // Release pointer in the possession of the caller
+        pimpl->mProgressHandler = new DefaultProgressHandler();
+        pimpl->mIsDefaultProgressHandler = true;
+    }
+    // Otherwise register the custom handler
+    else if (pimpl->mProgressHandler != pHandler)
+    {
+        delete pimpl->mProgressHandler;
+        pimpl->mProgressHandler = pHandler;
+        pimpl->mIsDefaultProgressHandler = false;
+    }
+    ASSIMP_END_EXCEPTION_REGION(void);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the currently set progress handler
+ProgressHandler* Importer::GetProgressHandler() const {
+    return pimpl->mProgressHandler;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Check whether a custom progress handler is currently set
+bool Importer::IsDefaultProgressHandler() const {
+    return pimpl->mIsDefaultProgressHandler;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Validate post process step flags
+bool _ValidateFlags(unsigned int pFlags)
+{
+    if (pFlags & aiProcess_GenSmoothNormals && pFlags & aiProcess_GenNormals)   {
+        ASSIMP_LOG_ERROR("#aiProcess_GenSmoothNormals and #aiProcess_GenNormals are incompatible");
+        return false;
+    }
+    if (pFlags & aiProcess_OptimizeGraph && pFlags & aiProcess_PreTransformVertices)    {
+        ASSIMP_LOG_ERROR("#aiProcess_OptimizeGraph and #aiProcess_PreTransformVertices are incompatible");
+        return false;
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Free the current scene
+void Importer::FreeScene( )
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+
+    delete pimpl->mScene;
+    pimpl->mScene = NULL;
+
+    pimpl->mErrorString = "";
+    ASSIMP_END_EXCEPTION_REGION(void);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the current error string, if any
+const char* Importer::GetErrorString() const
+{
+     /* Must remain valid as long as ReadFile() or FreeFile() are not called */
+    return pimpl->mErrorString.c_str();
+}
+
+// ------------------------------------------------------------------------------------------------
+// Enable extra-verbose mode
+void Importer::SetExtraVerbose(bool bDo)
+{
+    pimpl->bExtraVerbose = bDo;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the current scene
+const aiScene* Importer::GetScene() const
+{
+    return pimpl->mScene;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Orphan the current scene and return it.
+aiScene* Importer::GetOrphanedScene()
+{
+    aiScene* s = pimpl->mScene;
+
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    pimpl->mScene = NULL;
+
+    pimpl->mErrorString = ""; /* reset error string */
+    ASSIMP_END_EXCEPTION_REGION(aiScene*);
+    return s;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Validate post-processing flags
+bool Importer::ValidateFlags(unsigned int pFlags) const
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    // run basic checks for mutually exclusive flags
+    if(!_ValidateFlags(pFlags)) {
+        return false;
+    }
+
+    // ValidateDS does not anymore occur in the pp list, it plays an awesome extra role ...
+#ifdef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+    if (pFlags & aiProcess_ValidateDataStructure) {
+        return false;
+    }
+#endif
+    pFlags &= ~aiProcess_ValidateDataStructure;
+
+    // Now iterate through all bits which are set in the flags and check whether we find at least
+    // one pp plugin which handles it.
+    for (unsigned int mask = 1; mask < (1u << (sizeof(unsigned int)*8-1));mask <<= 1) {
+
+        if (pFlags & mask) {
+
+            bool have = false;
+            for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++)   {
+                if (pimpl->mPostProcessingSteps[a]-> IsActive(mask) ) {
+
+                    have = true;
+                    break;
+                }
+            }
+            if (!have) {
+                return false;
+            }
+        }
+    }
+    ASSIMP_END_EXCEPTION_REGION(bool);
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiScene* Importer::ReadFileFromMemory( const void* pBuffer,
+    size_t pLength,
+    unsigned int pFlags,
+    const char* pHint /*= ""*/)
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    if (!pHint) {
+        pHint = "";
+    }
+
+    if (!pBuffer || !pLength || strlen(pHint) > MaxLenHint ) {
+        pimpl->mErrorString = "Invalid parameters passed to ReadFileFromMemory()";
+        return NULL;
+    }
+
+    // prevent deletion of the previous IOHandler
+    IOSystem* io = pimpl->mIOHandler;
+    pimpl->mIOHandler = NULL;
+
+    SetIOHandler(new MemoryIOSystem((const uint8_t*)pBuffer,pLength,io));
+
+    // read the file and recover the previous IOSystem
+    static const size_t BufSize(Importer::MaxLenHint + 28);
+    char fbuff[BufSize];
+    ai_snprintf(fbuff, BufSize, "%s.%s",AI_MEMORYIO_MAGIC_FILENAME,pHint);
+
+    ReadFile(fbuff,pFlags);
+    SetIOHandler(io);
+
+    ASSIMP_END_EXCEPTION_REGION(const aiScene*);
+    return pimpl->mScene;
+}
+
+// ------------------------------------------------------------------------------------------------
+void WriteLogOpening(const std::string& file)
+{
+    ASSIMP_LOG_INFO_F("Load ", file);
+
+    // print a full version dump. This is nice because we don't
+    // need to ask the authors of incoming bug reports for
+    // the library version they're using - a log dump is
+    // sufficient.
+    const unsigned int flags( aiGetCompileFlags() );
+    std::stringstream stream;
+    stream << "Assimp " << aiGetVersionMajor() << "." << aiGetVersionMinor() << "." << aiGetVersionRevision() << " "
+#if defined(ASSIMP_BUILD_ARCHITECTURE)
+        << ASSIMP_BUILD_ARCHITECTURE
+#elif defined(_M_IX86) || defined(__x86_32__) || defined(__i386__)
+        << "x86"
+#elif defined(_M_X64) || defined(__x86_64__)
+        << "amd64"
+#elif defined(_M_IA64) || defined(__ia64__)
+        << "itanium"
+#elif defined(__ppc__) || defined(__powerpc__)
+        << "ppc32"
+#elif defined(__powerpc64__)
+        << "ppc64"
+#elif defined(__arm__)
+        << "arm"
+#else
+        << "<unknown architecture>"
+#endif
+        << " "
+#if defined(ASSIMP_BUILD_COMPILER)
+        << ( ASSIMP_BUILD_COMPILER )
+#elif defined(_MSC_VER)
+        << "msvc"
+#elif defined(__GNUC__)
+        << "gcc"
+#else
+        << "<unknown compiler>"
+#endif
+
+#ifdef ASSIMP_BUILD_DEBUG
+        << " debug"
+#endif
+
+        << (flags & ASSIMP_CFLAGS_NOBOOST ? " noboost" : "")
+        << (flags & ASSIMP_CFLAGS_SHARED  ? " shared" : "")
+        << (flags & ASSIMP_CFLAGS_SINGLETHREADED  ? " singlethreaded" : "");
+
+        ASSIMP_LOG_DEBUG(stream.str());
+}
+
+// ------------------------------------------------------------------------------------------------
+// Reads the given file and returns its contents if successful.
+const aiScene* Importer::ReadFile( const char* _pFile, unsigned int pFlags)
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    const std::string pFile(_pFile);
+
+    // ----------------------------------------------------------------------
+    // Put a large try block around everything to catch all std::exception's
+    // that might be thrown by STL containers or by new().
+    // ImportErrorException's are throw by ourselves and caught elsewhere.
+    //-----------------------------------------------------------------------
+
+    WriteLogOpening(pFile);
+
+#ifdef ASSIMP_CATCH_GLOBAL_EXCEPTIONS
+    try
+#endif // ! ASSIMP_CATCH_GLOBAL_EXCEPTIONS
+    {
+        // Check whether this Importer instance has already loaded
+        // a scene. In this case we need to delete the old one
+        if (pimpl->mScene)  {
+
+            ASSIMP_LOG_DEBUG("(Deleting previous scene)");
+            FreeScene();
+        }
+
+        // First check if the file is accessible at all
+        if( !pimpl->mIOHandler->Exists( pFile)) {
+
+            pimpl->mErrorString = "Unable to open file \"" + pFile + "\".";
+            ASSIMP_LOG_ERROR(pimpl->mErrorString);
+            return NULL;
+        }
+
+        std::unique_ptr<Profiler> profiler(GetPropertyInteger(AI_CONFIG_GLOB_MEASURE_TIME,0)?new Profiler():NULL);
+        if (profiler) {
+            profiler->BeginRegion("total");
+        }
+
+        // Find an worker class which can handle the file
+        BaseImporter* imp = NULL;
+        for( unsigned int a = 0; a < pimpl->mImporter.size(); a++)  {
+
+            if( pimpl->mImporter[a]->CanRead( pFile, pimpl->mIOHandler, false)) {
+                imp = pimpl->mImporter[a];
+                break;
+            }
+        }
+
+        if (!imp)   {
+            // not so bad yet ... try format auto detection.
+            const std::string::size_type s = pFile.find_last_of('.');
+            if (s != std::string::npos) {
+                ASSIMP_LOG_INFO("File extension not known, trying signature-based detection");
+                for( unsigned int a = 0; a < pimpl->mImporter.size(); a++)  {
+                    if( pimpl->mImporter[a]->CanRead( pFile, pimpl->mIOHandler, true)) {
+                        imp = pimpl->mImporter[a];
+                        break;
+                    }
+                }
+            }
+            // Put a proper error message if no suitable importer was found
+            if( !imp)   {
+                pimpl->mErrorString = "No suitable reader found for the file format of file \"" + pFile + "\".";
+                ASSIMP_LOG_ERROR(pimpl->mErrorString);
+                return NULL;
+            }
+        }
+
+        // Get file size for progress handler
+        IOStream * fileIO = pimpl->mIOHandler->Open( pFile );
+        uint32_t fileSize = 0;
+        if (fileIO)
+        {
+            fileSize = static_cast<uint32_t>(fileIO->FileSize());
+            pimpl->mIOHandler->Close( fileIO );
+        }
+
+        // Dispatch the reading to the worker class for this format
+        const aiImporterDesc *desc( imp->GetInfo() );
+        std::string ext( "unknown" );
+        if ( NULL != desc ) {
+            ext = desc->mName;
+        }
+        ASSIMP_LOG_INFO("Found a matching importer for this file format: " + ext + "." );
+        pimpl->mProgressHandler->UpdateFileRead( 0, fileSize );
+
+        if (profiler) {
+            profiler->BeginRegion("import");
+        }
+
+        pimpl->mScene = imp->ReadFile( this, pFile, pimpl->mIOHandler);
+        pimpl->mProgressHandler->UpdateFileRead( fileSize, fileSize );
+
+        if (profiler) {
+            profiler->EndRegion("import");
+        }
+
+        SetPropertyString("sourceFilePath", pFile);
+
+        // If successful, apply all active post processing steps to the imported data
+        if( pimpl->mScene)  {
+
+#ifndef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+            // The ValidateDS process is an exception. It is executed first, even before ScenePreprocessor is called.
+            if (pFlags & aiProcess_ValidateDataStructure)
+            {
+                ValidateDSProcess ds;
+                ds.ExecuteOnScene (this);
+                if (!pimpl->mScene) {
+                    return NULL;
+                }
+            }
+#endif // no validation
+
+            // Preprocess the scene and prepare it for post-processing
+            if (profiler) {
+                profiler->BeginRegion("preprocess");
+            }
+
+            ScenePreprocessor pre(pimpl->mScene);
+            pre.ProcessScene();
+
+            if (profiler) {
+                profiler->EndRegion("preprocess");
+            }
+
+            // Ensure that the validation process won't be called twice
+            ApplyPostProcessing(pFlags & (~aiProcess_ValidateDataStructure));
+        }
+        // if failed, extract the error string
+        else if( !pimpl->mScene) {
+            pimpl->mErrorString = imp->GetErrorText();
+        }
+
+        // clear any data allocated by post-process steps
+        pimpl->mPPShared->Clean();
+
+        if (profiler) {
+            profiler->EndRegion("total");
+        }
+    }
+#ifdef ASSIMP_CATCH_GLOBAL_EXCEPTIONS
+    catch (std::exception &e)
+    {
+#if (defined _MSC_VER) &&   (defined _CPPRTTI)
+        // if we have RTTI get the full name of the exception that occurred
+        pimpl->mErrorString = std::string(typeid( e ).name()) + ": " + e.what();
+#else
+        pimpl->mErrorString = std::string("std::exception: ") + e.what();
+#endif
+
+        ASSIMP_LOG_ERROR(pimpl->mErrorString);
+        delete pimpl->mScene; pimpl->mScene = NULL;
+    }
+#endif // ! ASSIMP_CATCH_GLOBAL_EXCEPTIONS
+
+    // either successful or failure - the pointer expresses it anyways
+    ASSIMP_END_EXCEPTION_REGION(const aiScene*);
+    return pimpl->mScene;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// Apply post-processing to the currently bound scene
+const aiScene* Importer::ApplyPostProcessing(unsigned int pFlags)
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    // Return immediately if no scene is active
+    if (!pimpl->mScene) {
+        return NULL;
+    }
+
+    // If no flags are given, return the current scene with no further action
+    if (!pFlags) {
+        return pimpl->mScene;
+    }
+
+    // In debug builds: run basic flag validation
+    ai_assert(_ValidateFlags(pFlags));
+    ASSIMP_LOG_INFO("Entering post processing pipeline");
+
+#ifndef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+    // The ValidateDS process plays an exceptional role. It isn't contained in the global
+    // list of post-processing steps, so we need to call it manually.
+    if (pFlags & aiProcess_ValidateDataStructure)
+    {
+        ValidateDSProcess ds;
+        ds.ExecuteOnScene (this);
+        if (!pimpl->mScene) {
+            return NULL;
+        }
+    }
+#endif // no validation
+#ifdef ASSIMP_BUILD_DEBUG
+    if (pimpl->bExtraVerbose)
+    {
+#ifdef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+        ASSIMP_LOG_ERROR("Verbose Import is not available due to build settings");
+#endif  // no validation
+        pFlags |= aiProcess_ValidateDataStructure;
+    }
+#else
+    if (pimpl->bExtraVerbose) {
+        ASSIMP_LOG_WARN("Not a debug build, ignoring extra verbose setting");
+    }
+#endif // ! DEBUG
+
+    std::unique_ptr<Profiler> profiler(GetPropertyInteger(AI_CONFIG_GLOB_MEASURE_TIME,0)?new Profiler():NULL);
+    for( unsigned int a = 0; a < pimpl->mPostProcessingSteps.size(); a++)   {
+
+        BaseProcess* process = pimpl->mPostProcessingSteps[a];
+        pimpl->mProgressHandler->UpdatePostProcess(static_cast<int>(a), static_cast<int>(pimpl->mPostProcessingSteps.size()) );
+        if( process->IsActive( pFlags)) {
+
+            if (profiler) {
+                profiler->BeginRegion("postprocess");
+            }
+
+            process->ExecuteOnScene ( this );
+
+            if (profiler) {
+                profiler->EndRegion("postprocess");
+            }
+        }
+        if( !pimpl->mScene) {
+            break;
+        }
+#ifdef ASSIMP_BUILD_DEBUG
+
+#ifdef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+        continue;
+#endif  // no validation
+
+        // If the extra verbose mode is active, execute the ValidateDataStructureStep again - after each step
+        if (pimpl->bExtraVerbose)   {
+            ASSIMP_LOG_DEBUG("Verbose Import: re-validating data structures");
+
+            ValidateDSProcess ds;
+            ds.ExecuteOnScene (this);
+            if( !pimpl->mScene) {
+                ASSIMP_LOG_ERROR("Verbose Import: failed to re-validate data structures");
+                break;
+            }
+        }
+#endif // ! DEBUG
+    }
+    pimpl->mProgressHandler->UpdatePostProcess( static_cast<int>(pimpl->mPostProcessingSteps.size()), 
+        static_cast<int>(pimpl->mPostProcessingSteps.size()) );
+
+    // update private scene flags
+    if( pimpl->mScene )
+      ScenePriv(pimpl->mScene)->mPPStepsApplied |= pFlags;
+
+    // clear any data allocated by post-process steps
+    pimpl->mPPShared->Clean();
+    ASSIMP_LOG_INFO("Leaving post processing pipeline");
+
+    ASSIMP_END_EXCEPTION_REGION(const aiScene*);
+    return pimpl->mScene;
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiScene* Importer::ApplyCustomizedPostProcessing( BaseProcess *rootProcess, bool requestValidation ) {
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+
+    // Return immediately if no scene is active
+    if ( NULL == pimpl->mScene ) {
+        return NULL;
+    }
+
+    // If no flags are given, return the current scene with no further action
+    if ( NULL == rootProcess ) {
+        return pimpl->mScene;
+    }
+
+    // In debug builds: run basic flag validation
+    ASSIMP_LOG_INFO( "Entering customized post processing pipeline" );
+
+#ifndef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+    // The ValidateDS process plays an exceptional role. It isn't contained in the global
+    // list of post-processing steps, so we need to call it manually.
+    if ( requestValidation )
+    {
+        ValidateDSProcess ds;
+        ds.ExecuteOnScene( this );
+        if ( !pimpl->mScene ) {
+            return NULL;
+        }
+    }
+#endif // no validation
+#ifdef ASSIMP_BUILD_DEBUG
+    if ( pimpl->bExtraVerbose )
+    {
+#ifdef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+        ASSIMP_LOG_ERROR( "Verbose Import is not available due to build settings" );
+#endif  // no validation
+    }
+#else
+    if ( pimpl->bExtraVerbose ) {
+        ASSIMP_LOG_WARN( "Not a debug build, ignoring extra verbose setting" );
+    }
+#endif // ! DEBUG
+
+    std::unique_ptr<Profiler> profiler( GetPropertyInteger( AI_CONFIG_GLOB_MEASURE_TIME, 0 ) ? new Profiler() : NULL );
+
+    if ( profiler ) {
+        profiler->BeginRegion( "postprocess" );
+    }
+
+    rootProcess->ExecuteOnScene( this );
+
+    if ( profiler ) {
+        profiler->EndRegion( "postprocess" );
+    }
+
+    // If the extra verbose mode is active, execute the ValidateDataStructureStep again - after each step
+    if ( pimpl->bExtraVerbose || requestValidation  ) {
+        ASSIMP_LOG_DEBUG( "Verbose Import: revalidating data structures" );
+
+        ValidateDSProcess ds;
+        ds.ExecuteOnScene( this );
+        if ( !pimpl->mScene ) {
+            ASSIMP_LOG_ERROR( "Verbose Import: failed to revalidate data structures" );
+        }
+    }
+
+    // clear any data allocated by post-process steps
+    pimpl->mPPShared->Clean();
+    ASSIMP_LOG_INFO( "Leaving customized post processing pipeline" );
+
+    ASSIMP_END_EXCEPTION_REGION( const aiScene* );
+
+    return pimpl->mScene;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Helper function to check whether an extension is supported by ASSIMP
+bool Importer::IsExtensionSupported(const char* szExtension) const
+{
+    return nullptr != GetImporter(szExtension);
+}
+
+// ------------------------------------------------------------------------------------------------
+size_t Importer::GetImporterCount() const
+{
+    return pimpl->mImporter.size();
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiImporterDesc* Importer::GetImporterInfo(size_t index) const
+{
+    if (index >= pimpl->mImporter.size()) {
+        return NULL;
+    }
+    return pimpl->mImporter[index]->GetInfo();
+}
+
+
+// ------------------------------------------------------------------------------------------------
+BaseImporter* Importer::GetImporter (size_t index) const
+{
+    if (index >= pimpl->mImporter.size()) {
+        return NULL;
+    }
+    return pimpl->mImporter[index];
+}
+
+// ------------------------------------------------------------------------------------------------
+// Find a loader plugin for a given file extension
+BaseImporter* Importer::GetImporter (const char* szExtension) const
+{
+    return GetImporter(GetImporterIndex(szExtension));
+}
+
+// ------------------------------------------------------------------------------------------------
+// Find a loader plugin for a given file extension
+size_t Importer::GetImporterIndex (const char* szExtension) const {
+    ai_assert(nullptr != szExtension);
+
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+
+    // skip over wildcard and dot characters at string head --
+    for ( ; *szExtension == '*' || *szExtension == '.'; ++szExtension );
+
+    std::string ext(szExtension);
+    if (ext.empty()) {
+        return static_cast<size_t>(-1);
+    }
+    std::transform( ext.begin(), ext.end(), ext.begin(), ToLower<char> );
+
+    std::set<std::string> str;
+    for (std::vector<BaseImporter*>::const_iterator i =  pimpl->mImporter.begin();i != pimpl->mImporter.end();++i)  {
+        str.clear();
+
+        (*i)->GetExtensionList(str);
+        for (std::set<std::string>::const_iterator it = str.begin(); it != str.end(); ++it) {
+            if (ext == *it) {
+                return std::distance(static_cast< std::vector<BaseImporter*>::const_iterator >(pimpl->mImporter.begin()), i);
+            }
+        }
+    }
+    ASSIMP_END_EXCEPTION_REGION(size_t);
+    return static_cast<size_t>(-1);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Helper function to build a list of all file extensions supported by ASSIMP
+void Importer::GetExtensionList(aiString& szOut) const
+{
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+    std::set<std::string> str;
+    for (std::vector<BaseImporter*>::const_iterator i =  pimpl->mImporter.begin();i != pimpl->mImporter.end();++i)  {
+        (*i)->GetExtensionList(str);
+    }
+
+	// List can be empty
+	if( !str.empty() ) {
+		for (std::set<std::string>::const_iterator it = str.begin();; ) {
+			szOut.Append("*.");
+			szOut.Append((*it).c_str());
+
+			if (++it == str.end()) {
+				break;
+			}
+			szOut.Append(";");
+		}
+	}
+    ASSIMP_END_EXCEPTION_REGION(void);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool Importer::SetPropertyInteger(const char* szName, int iValue)
+{
+    bool existing;
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+        existing = SetGenericProperty<int>(pimpl->mIntProperties, szName,iValue);
+    ASSIMP_END_EXCEPTION_REGION(bool);
+    return existing;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool Importer::SetPropertyFloat(const char* szName, ai_real iValue)
+{
+    bool existing;
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+        existing = SetGenericProperty<ai_real>(pimpl->mFloatProperties, szName,iValue);
+    ASSIMP_END_EXCEPTION_REGION(bool);
+    return existing;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool Importer::SetPropertyString(const char* szName, const std::string& value)
+{
+    bool existing;
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+        existing = SetGenericProperty<std::string>(pimpl->mStringProperties, szName,value);
+    ASSIMP_END_EXCEPTION_REGION(bool);
+    return existing;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Set a configuration property
+bool Importer::SetPropertyMatrix(const char* szName, const aiMatrix4x4& value)
+{
+    bool existing;
+    ASSIMP_BEGIN_EXCEPTION_REGION();
+        existing = SetGenericProperty<aiMatrix4x4>(pimpl->mMatrixProperties, szName,value);
+    ASSIMP_END_EXCEPTION_REGION(bool);
+    return existing;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+int Importer::GetPropertyInteger(const char* szName,
+    int iErrorReturn /*= 0xffffffff*/) const
+{
+    return GetGenericProperty<int>(pimpl->mIntProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+ai_real Importer::GetPropertyFloat(const char* szName,
+    ai_real iErrorReturn /*= 10e10*/) const
+{
+    return GetGenericProperty<ai_real>(pimpl->mFloatProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+const std::string Importer::GetPropertyString(const char* szName,
+    const std::string& iErrorReturn /*= ""*/) const
+{
+    return GetGenericProperty<std::string>(pimpl->mStringProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a configuration property
+const aiMatrix4x4 Importer::GetPropertyMatrix(const char* szName,
+    const aiMatrix4x4& iErrorReturn /*= aiMatrix4x4()*/) const
+{
+    return GetGenericProperty<aiMatrix4x4>(pimpl->mMatrixProperties,szName,iErrorReturn);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the memory requirements of a single node
+inline void AddNodeWeight(unsigned int& iScene,const aiNode* pcNode)
+{
+    iScene += sizeof(aiNode);
+    iScene += sizeof(unsigned int) * pcNode->mNumMeshes;
+    iScene += sizeof(void*) * pcNode->mNumChildren;
+
+    for (unsigned int i = 0; i < pcNode->mNumChildren;++i) {
+        AddNodeWeight(iScene,pcNode->mChildren[i]);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the memory requirements of the scene
+void Importer::GetMemoryRequirements(aiMemoryInfo& in) const
+{
+    in = aiMemoryInfo();
+    aiScene* mScene = pimpl->mScene;
+
+    // return if we have no scene loaded
+    if (!pimpl->mScene)
+        return;
+
+
+    in.total = sizeof(aiScene);
+
+    // add all meshes
+    for (unsigned int i = 0; i < mScene->mNumMeshes;++i)
+    {
+        in.meshes += sizeof(aiMesh);
+        if (mScene->mMeshes[i]->HasPositions()) {
+            in.meshes += sizeof(aiVector3D) * mScene->mMeshes[i]->mNumVertices;
+        }
+
+        if (mScene->mMeshes[i]->HasNormals()) {
+            in.meshes += sizeof(aiVector3D) * mScene->mMeshes[i]->mNumVertices;
+        }
+
+        if (mScene->mMeshes[i]->HasTangentsAndBitangents()) {
+            in.meshes += sizeof(aiVector3D) * mScene->mMeshes[i]->mNumVertices * 2;
+        }
+
+        for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS;++a) {
+            if (mScene->mMeshes[i]->HasVertexColors(a)) {
+                in.meshes += sizeof(aiColor4D) * mScene->mMeshes[i]->mNumVertices;
+            }
+            else break;
+        }
+        for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS;++a) {
+            if (mScene->mMeshes[i]->HasTextureCoords(a)) {
+                in.meshes += sizeof(aiVector3D) * mScene->mMeshes[i]->mNumVertices;
+            }
+            else break;
+        }
+        if (mScene->mMeshes[i]->HasBones()) {
+            in.meshes += sizeof(void*) * mScene->mMeshes[i]->mNumBones;
+            for (unsigned int p = 0; p < mScene->mMeshes[i]->mNumBones;++p) {
+                in.meshes += sizeof(aiBone);
+                in.meshes += mScene->mMeshes[i]->mBones[p]->mNumWeights * sizeof(aiVertexWeight);
+            }
+        }
+        in.meshes += (sizeof(aiFace) + 3 * sizeof(unsigned int))*mScene->mMeshes[i]->mNumFaces;
+    }
+    in.total += in.meshes;
+
+    // add all embedded textures
+    for (unsigned int i = 0; i < mScene->mNumTextures;++i) {
+        const aiTexture* pc = mScene->mTextures[i];
+        in.textures += sizeof(aiTexture);
+        if (pc->mHeight) {
+            in.textures += 4 * pc->mHeight * pc->mWidth;
+        }
+        else in.textures += pc->mWidth;
+    }
+    in.total += in.textures;
+
+    // add all animations
+    for (unsigned int i = 0; i < mScene->mNumAnimations;++i) {
+        const aiAnimation* pc = mScene->mAnimations[i];
+        in.animations += sizeof(aiAnimation);
+
+        // add all bone anims
+        for (unsigned int a = 0; a < pc->mNumChannels; ++a) {
+            const aiNodeAnim* pc2 = pc->mChannels[i];
+            in.animations += sizeof(aiNodeAnim);
+            in.animations += pc2->mNumPositionKeys * sizeof(aiVectorKey);
+            in.animations += pc2->mNumScalingKeys * sizeof(aiVectorKey);
+            in.animations += pc2->mNumRotationKeys * sizeof(aiQuatKey);
+        }
+    }
+    in.total += in.animations;
+
+    // add all cameras and all lights
+    in.total += in.cameras = sizeof(aiCamera) *  mScene->mNumCameras;
+    in.total += in.lights  = sizeof(aiLight)  *  mScene->mNumLights;
+
+    // add all nodes
+    AddNodeWeight(in.nodes,mScene->mRootNode);
+    in.total += in.nodes;
+
+    // add all materials
+    for (unsigned int i = 0; i < mScene->mNumMaterials;++i) {
+        const aiMaterial* pc = mScene->mMaterials[i];
+        in.materials += sizeof(aiMaterial);
+        in.materials += pc->mNumAllocated * sizeof(void*);
+
+        for (unsigned int a = 0; a < pc->mNumProperties;++a) {
+            in.materials += pc->mProperties[a]->mDataLength;
+        }
+    }
+    in.total += in.materials;
+}
diff --git a/thirdparty/assimp/code/Importer.h b/thirdparty/assimp/code/Importer.h
new file mode 100644
index 0000000000..a439d99c2f
--- /dev/null
+++ b/thirdparty/assimp/code/Importer.h
@@ -0,0 +1,247 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Importer.h mostly internal stuff for use by #Assimp::Importer */
+#pragma once
+#ifndef INCLUDED_AI_IMPORTER_H
+#define INCLUDED_AI_IMPORTER_H
+
+#include <map>
+#include <vector>
+#include <string>
+#include <assimp/matrix4x4.h>
+
+struct aiScene;
+
+namespace Assimp    {
+    class ProgressHandler;
+    class IOSystem;
+    class BaseImporter;
+    class BaseProcess;
+    class SharedPostProcessInfo;
+
+
+//! @cond never
+// ---------------------------------------------------------------------------
+/** @brief Internal PIMPL implementation for Assimp::Importer
+ *
+ *  Using this idiom here allows us to drop the dependency from
+ *  std::vector and std::map in the public headers. Furthermore we are dropping
+ *  any STL interface problems caused by mismatching STL settings. All
+ *  size calculation are now done by us, not the app heap. */
+class ImporterPimpl {
+public:
+    // Data type to store the key hash
+    typedef unsigned int KeyType;
+
+    // typedefs for our four configuration maps.
+    // We don't need more, so there is no need for a generic solution
+    typedef std::map<KeyType, int> IntPropertyMap;
+    typedef std::map<KeyType, ai_real> FloatPropertyMap;
+    typedef std::map<KeyType, std::string> StringPropertyMap;
+    typedef std::map<KeyType, aiMatrix4x4> MatrixPropertyMap;
+
+    /** IO handler to use for all file accesses. */
+    IOSystem* mIOHandler;
+    bool mIsDefaultHandler;
+
+    /** Progress handler for feedback. */
+    ProgressHandler* mProgressHandler;
+    bool mIsDefaultProgressHandler;
+
+    /** Format-specific importer worker objects - one for each format we can read.*/
+    std::vector< BaseImporter* > mImporter;
+
+    /** Post processing steps we can apply at the imported data. */
+    std::vector< BaseProcess* > mPostProcessingSteps;
+
+    /** The imported data, if ReadFile() was successful, NULL otherwise. */
+    aiScene* mScene;
+
+    /** The error description, if there was one. */
+    std::string mErrorString;
+
+    /** List of integer properties */
+    IntPropertyMap mIntProperties;
+
+    /** List of floating-point properties */
+    FloatPropertyMap mFloatProperties;
+
+    /** List of string properties */
+    StringPropertyMap mStringProperties;
+
+    /** List of Matrix properties */
+    MatrixPropertyMap mMatrixProperties;
+
+    /** Used for testing - extra verbose mode causes the ValidateDataStructure-Step
+     *  to be executed before and after every single post-process step */
+    bool bExtraVerbose;
+
+    /** Used by post-process steps to share data */
+    SharedPostProcessInfo* mPPShared;
+
+    /// The default class constructor.
+    ImporterPimpl() AI_NO_EXCEPT;
+};
+
+inline
+ImporterPimpl::ImporterPimpl() AI_NO_EXCEPT
+: mIOHandler( nullptr )
+, mIsDefaultHandler( false )
+, mProgressHandler( nullptr )
+, mIsDefaultProgressHandler( false )
+, mImporter()
+, mPostProcessingSteps()
+, mScene( nullptr )
+, mErrorString()
+, mIntProperties()
+, mFloatProperties()
+, mStringProperties()
+, mMatrixProperties()
+, bExtraVerbose( false )
+, mPPShared( nullptr ) {
+    // empty
+}
+//! @endcond
+
+
+struct BatchData;
+
+// ---------------------------------------------------------------------------
+/** FOR IMPORTER PLUGINS ONLY: A helper class to the pleasure of importers
+ *  that need to load many external meshes recursively.
+ *
+ *  The class uses several threads to load these meshes (or at least it
+ *  could, this has not yet been implemented at the moment).
+ *
+ *  @note The class may not be used by more than one thread*/
+class ASSIMP_API BatchLoader
+{
+    // friend of Importer
+
+public:
+    //! @cond never
+    // -------------------------------------------------------------------
+    /** Wraps a full list of configuration properties for an importer.
+     *  Properties can be set using SetGenericProperty */
+    struct PropertyMap
+    {
+        ImporterPimpl::IntPropertyMap     ints;
+        ImporterPimpl::FloatPropertyMap   floats;
+        ImporterPimpl::StringPropertyMap  strings;
+        ImporterPimpl::MatrixPropertyMap  matrices;
+
+        bool operator == (const PropertyMap& prop) const {
+            // fixme: really isocpp? gcc complains
+            return ints == prop.ints && floats == prop.floats && strings == prop.strings && matrices == prop.matrices;
+        }
+
+        bool empty () const {
+            return ints.empty() && floats.empty() && strings.empty() && matrices.empty();
+        }
+    };
+    //! @endcond
+
+public:
+    // -------------------------------------------------------------------
+    /** Construct a batch loader from a given IO system to be used
+     *  to access external files 
+     */
+    explicit BatchLoader(IOSystem* pIO, bool validate = false );
+
+    // -------------------------------------------------------------------
+    /** The class destructor.
+     */
+    ~BatchLoader();
+
+    // -------------------------------------------------------------------
+    /** Sets the validation step. True for enable validation during postprocess.
+     *  @param  enable  True for validation.
+     */
+    void setValidation( bool enabled );
+    
+    // -------------------------------------------------------------------
+    /** Returns the current validation step.
+     *  @return The current validation step.
+     */
+    bool getValidation() const;
+    
+    // -------------------------------------------------------------------
+    /** Add a new file to the list of files to be loaded.
+     *  @param file File to be loaded
+     *  @param steps Post-processing steps to be executed on the file
+     *  @param map Optional configuration properties
+     *  @return 'Load request channel' - an unique ID that can later
+     *    be used to access the imported file data.
+     *  @see GetImport */
+    unsigned int AddLoadRequest (
+        const std::string& file,
+        unsigned int steps = 0,
+        const PropertyMap* map = NULL
+        );
+
+    // -------------------------------------------------------------------
+    /** Get an imported scene.
+     *  This polls the import from the internal request list.
+     *  If an import is requested several times, this function
+     *  can be called several times, too.
+     *
+     *  @param which LRWC returned by AddLoadRequest().
+     *  @return NULL if there is no scene with this file name
+     *  in the queue of the scene hasn't been loaded yet. */
+    aiScene* GetImport(
+        unsigned int which
+        );
+
+    // -------------------------------------------------------------------
+    /** Waits until all scenes have been loaded. This returns
+     *  immediately if no scenes are queued.*/
+    void LoadAll();
+
+private:
+    // No need to have that in the public API ...
+    BatchData *m_data;
+};
+
+} // Namespace Assimp
+
+#endif // INCLUDED_AI_IMPORTER_H
diff --git a/thirdparty/assimp/code/ImporterRegistry.cpp b/thirdparty/assimp/code/ImporterRegistry.cpp
new file mode 100644
index 0000000000..747815fa6f
--- /dev/null
+++ b/thirdparty/assimp/code/ImporterRegistry.cpp
@@ -0,0 +1,371 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file ImporterRegistry.cpp
+
+Central registry for all importers available. Do not edit this file
+directly (unless you are adding new loaders), instead use the
+corresponding preprocessor flag to selectively disable formats.
+*/
+
+#include <vector>
+#include <assimp/BaseImporter.h>
+
+// ------------------------------------------------------------------------------------------------
+// Importers
+// (include_new_importers_here)
+// ------------------------------------------------------------------------------------------------
+#ifndef ASSIMP_BUILD_NO_X_IMPORTER
+#   include "XFileImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
+#   include "AMFImporter.hpp"
+#endif
+#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
+#   include "3DSLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_MD3_IMPORTER
+#   include "MD3Loader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_MDL_IMPORTER
+#   include "MDLLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_MD2_IMPORTER
+#   include "MD2Loader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_PLY_IMPORTER
+#   include "PlyLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_ASE_IMPORTER
+#   include "ASELoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_OBJ_IMPORTER
+#   include "ObjFileImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_HMP_IMPORTER
+#   include "HMPLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_SMD_IMPORTER
+#   include "SMDLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_MDC_IMPORTER
+#   include "MDCLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_MD5_IMPORTER
+#   include "MD5Loader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_STL_IMPORTER
+#   include "STLLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_LWO_IMPORTER
+#   include "LWOLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_DXF_IMPORTER
+#   include "DXFLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_NFF_IMPORTER
+#   include "NFFLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_RAW_IMPORTER
+#   include "RawLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_SIB_IMPORTER
+#   include "SIBImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_OFF_IMPORTER
+#   include "OFFLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_AC_IMPORTER
+#   include "ACLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_BVH_IMPORTER
+#   include "BVHLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_IRRMESH_IMPORTER
+#   include "IRRMeshLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_IRR_IMPORTER
+#   include "IRRLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_Q3D_IMPORTER
+#   include "Q3DLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_B3D_IMPORTER
+#   include "B3DImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_COLLADA_IMPORTER
+#   include "ColladaLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_TERRAGEN_IMPORTER
+#   include "TerragenLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_CSM_IMPORTER
+#   include "CSMLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_3D_IMPORTER
+#   include "UnrealLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_LWS_IMPORTER
+#   include "LWSLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_OGRE_IMPORTER
+#   include "OgreImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_OPENGEX_IMPORTER
+#   include "OpenGEXImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_MS3D_IMPORTER
+#   include "MS3DLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_COB_IMPORTER
+#   include "COBLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_BLEND_IMPORTER
+#   include "BlenderLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER
+#   include "Q3BSPFileImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_NDO_IMPORTER
+#   include "NDOLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_IFC_IMPORTER
+#   include "Importer/IFC/IFCLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_XGL_IMPORTER
+#   include "XGLLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+#   include "FBXImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_ASSBIN_IMPORTER
+#   include "AssbinLoader.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_GLTF_IMPORTER
+#   include "glTFImporter.h"
+#   include "glTF2Importer.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_C4D_IMPORTER
+#   include "C4DImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_3MF_IMPORTER
+#   include "D3MFImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER
+#   include "X3DImporter.hpp"
+#endif
+#ifndef ASSIMP_BUILD_NO_MMD_IMPORTER
+#   include "MMDImporter.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_STEP_IMPORTER
+#   include "Importer/StepFile/StepFileImporter.h"
+#endif
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+void GetImporterInstanceList(std::vector< BaseImporter* >& out)
+{
+    // ----------------------------------------------------------------------------
+    // Add an instance of each worker class here
+    // (register_new_importers_here)
+    // ----------------------------------------------------------------------------
+    out.reserve(64);
+#if (!defined ASSIMP_BUILD_NO_X_IMPORTER)
+    out.push_back( new XFileImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_OBJ_IMPORTER)
+    out.push_back( new ObjFileImporter());
+#endif
+#ifndef ASSIMP_BUILD_NO_AMF_IMPORTER
+	out.push_back( new AMFImporter() );
+#endif
+#if (!defined ASSIMP_BUILD_NO_3DS_IMPORTER)
+    out.push_back( new Discreet3DSImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_MD3_IMPORTER)
+    out.push_back( new MD3Importer());
+#endif
+#if (!defined ASSIMP_BUILD_NO_MD2_IMPORTER)
+    out.push_back( new MD2Importer());
+#endif
+#if (!defined ASSIMP_BUILD_NO_PLY_IMPORTER)
+    out.push_back( new PLYImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_MDL_IMPORTER)
+    out.push_back( new MDLImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_ASE_IMPORTER)
+  #if (!defined ASSIMP_BUILD_NO_3DS_IMPORTER)
+    out.push_back( new ASEImporter());
+#  endif
+#endif
+#if (!defined ASSIMP_BUILD_NO_HMP_IMPORTER)
+    out.push_back( new HMPImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_SMD_IMPORTER)
+    out.push_back( new SMDImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_MDC_IMPORTER)
+    out.push_back( new MDCImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_MD5_IMPORTER)
+    out.push_back( new MD5Importer());
+#endif
+#if (!defined ASSIMP_BUILD_NO_STL_IMPORTER)
+    out.push_back( new STLImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_LWO_IMPORTER)
+    out.push_back( new LWOImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_DXF_IMPORTER)
+    out.push_back( new DXFImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_NFF_IMPORTER)
+    out.push_back( new NFFImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_RAW_IMPORTER)
+    out.push_back( new RAWImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_SIB_IMPORTER)
+    out.push_back( new SIBImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_OFF_IMPORTER)
+    out.push_back( new OFFImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_AC_IMPORTER)
+    out.push_back( new AC3DImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_BVH_IMPORTER)
+    out.push_back( new BVHLoader());
+#endif
+#if (!defined ASSIMP_BUILD_NO_IRRMESH_IMPORTER)
+    out.push_back( new IRRMeshImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_IRR_IMPORTER)
+    out.push_back( new IRRImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_Q3D_IMPORTER)
+    out.push_back( new Q3DImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_B3D_IMPORTER)
+    out.push_back( new B3DImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_COLLADA_IMPORTER)
+    out.push_back( new ColladaLoader());
+#endif
+#if (!defined ASSIMP_BUILD_NO_TERRAGEN_IMPORTER)
+    out.push_back( new TerragenImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_CSM_IMPORTER)
+    out.push_back( new CSMImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_3D_IMPORTER)
+    out.push_back( new UnrealImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_LWS_IMPORTER)
+    out.push_back( new LWSImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_OGRE_IMPORTER)
+    out.push_back( new Ogre::OgreImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_OPENGEX_IMPORTER )
+    out.push_back( new OpenGEX::OpenGEXImporter() );
+#endif
+#if (!defined ASSIMP_BUILD_NO_MS3D_IMPORTER)
+    out.push_back( new MS3DImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_COB_IMPORTER)
+    out.push_back( new COBImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_BLEND_IMPORTER)
+    out.push_back( new BlenderImporter());
+#endif
+#if (!defined ASSIMP_BUILD_NO_Q3BSP_IMPORTER)
+    out.push_back( new Q3BSPFileImporter() );
+#endif
+#if (!defined ASSIMP_BUILD_NO_NDO_IMPORTER)
+    out.push_back( new NDOImporter() );
+#endif
+#if (!defined ASSIMP_BUILD_NO_IFC_IMPORTER)
+    out.push_back( new IFCImporter() );
+#endif
+#if ( !defined ASSIMP_BUILD_NO_XGL_IMPORTER )
+    out.push_back( new XGLImporter() );
+#endif
+#if ( !defined ASSIMP_BUILD_NO_FBX_IMPORTER )
+    out.push_back( new FBXImporter() );
+#endif
+#if ( !defined ASSIMP_BUILD_NO_ASSBIN_IMPORTER )
+    out.push_back( new AssbinImporter() );
+#endif
+#if ( !defined ASSIMP_BUILD_NO_GLTF_IMPORTER )
+    out.push_back( new glTFImporter() );
+    out.push_back( new glTF2Importer() );
+#endif
+#if ( !defined ASSIMP_BUILD_NO_C4D_IMPORTER )
+    out.push_back( new C4DImporter() );
+#endif
+#if ( !defined ASSIMP_BUILD_NO_3MF_IMPORTER )
+    out.push_back( new D3MFImporter() );
+#endif
+#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER
+    out.push_back( new X3DImporter() );
+#endif
+#ifndef ASSIMP_BUILD_NO_MMD_IMPORTER
+    out.push_back( new MMDImporter() );
+#endif
+#ifndef ASSIMP_BUILD_NO_STEP_IMPORTER
+    out.push_back(new StepFile::StepFileImporter());
+#endif
+}
+
+/** will delete all registered importers. */
+void DeleteImporterInstanceList(std::vector< BaseImporter* >& deleteList){
+	for(size_t i= 0; i<deleteList.size();++i){
+		delete deleteList[i];
+		deleteList[i]=NULL;
+	}//for
+}
+
+} // namespace Assimp
diff --git a/thirdparty/assimp/code/ImproveCacheLocality.cpp b/thirdparty/assimp/code/ImproveCacheLocality.cpp
new file mode 100644
index 0000000000..ace9d95ff8
--- /dev/null
+++ b/thirdparty/assimp/code/ImproveCacheLocality.cpp
@@ -0,0 +1,386 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to improve the cache locality of a mesh.
+ * <br>
+ * The algorithm is roughly basing on this paper:
+ * http://www.cs.princeton.edu/gfx/pubs/Sander_2007_%3ETR/tipsy.pdf
+ *   .. although overdraw rduction isn't implemented yet ...
+ */
+
+
+
+// internal headers
+#include "ImproveCacheLocality.h"
+#include "VertexTriangleAdjacency.h"
+#include <assimp/StringUtils.h>
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+#include <stdio.h>
+#include <stack>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+ImproveCacheLocalityProcess::ImproveCacheLocalityProcess() {
+    configCacheDepth = PP_ICL_PTCACHE_SIZE;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+ImproveCacheLocalityProcess::~ImproveCacheLocalityProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool ImproveCacheLocalityProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_ImproveCacheLocality) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup configuration
+void ImproveCacheLocalityProcess::SetupProperties(const Importer* pImp)
+{
+    // AI_CONFIG_PP_ICL_PTCACHE_SIZE controls the target cache size for the optimizer
+    configCacheDepth = pImp->GetPropertyInteger(AI_CONFIG_PP_ICL_PTCACHE_SIZE,PP_ICL_PTCACHE_SIZE);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void ImproveCacheLocalityProcess::Execute( aiScene* pScene)
+{
+    if (!pScene->mNumMeshes) {
+        ASSIMP_LOG_DEBUG("ImproveCacheLocalityProcess skipped; there are no meshes");
+        return;
+    }
+
+    ASSIMP_LOG_DEBUG("ImproveCacheLocalityProcess begin");
+
+    float out = 0.f;
+    unsigned int numf = 0, numm = 0;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++){
+        const float res = ProcessMesh( pScene->mMeshes[a],a);
+        if (res) {
+            numf += pScene->mMeshes[a]->mNumFaces;
+            out  += res;
+            ++numm;
+        }
+    }
+    if (!DefaultLogger::isNullLogger()) {
+        if (numf > 0) {
+            ASSIMP_LOG_INFO_F("Cache relevant are ", numm, " meshes (", numf, " faces). Average output ACMR is ", out / numf);
+        }
+        ASSIMP_LOG_DEBUG("ImproveCacheLocalityProcess finished. ");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Improves the cache coherency of a specific mesh
+float ImproveCacheLocalityProcess::ProcessMesh( aiMesh* pMesh, unsigned int meshNum)
+{
+    // TODO: rewrite this to use std::vector or boost::shared_array
+    ai_assert(NULL != pMesh);
+
+    // Check whether the input data is valid
+    // - there must be vertices and faces
+    // - all faces must be triangulated or we can't operate on them
+    if (!pMesh->HasFaces() || !pMesh->HasPositions())
+        return 0.f;
+
+    if (pMesh->mPrimitiveTypes != aiPrimitiveType_TRIANGLE) {
+        ASSIMP_LOG_ERROR("This algorithm works on triangle meshes only");
+        return 0.f;
+    }
+
+    if(pMesh->mNumVertices <= configCacheDepth) {
+        return 0.f;
+    }
+
+    float fACMR = 3.f;
+    const aiFace* const pcEnd = pMesh->mFaces+pMesh->mNumFaces;
+
+    // Input ACMR is for logging purposes only
+    if (!DefaultLogger::isNullLogger())     {
+
+        unsigned int* piFIFOStack = new unsigned int[configCacheDepth];
+        memset(piFIFOStack,0xff,configCacheDepth*sizeof(unsigned int));
+        unsigned int* piCur = piFIFOStack;
+        const unsigned int* const piCurEnd = piFIFOStack + configCacheDepth;
+
+        // count the number of cache misses
+        unsigned int iCacheMisses = 0;
+        for (const aiFace* pcFace = pMesh->mFaces;pcFace != pcEnd;++pcFace) {
+
+            for (unsigned int qq = 0; qq < 3;++qq) {
+                bool bInCache = false;
+
+                for (unsigned int* pp = piFIFOStack;pp < piCurEnd;++pp) {
+                    if (*pp == pcFace->mIndices[qq])    {
+                        // the vertex is in cache
+                        bInCache = true;
+                        break;
+                    }
+                }
+                if (!bInCache)  {
+                    ++iCacheMisses;
+                    if (piCurEnd == piCur) {
+                        piCur = piFIFOStack;
+                    }
+                    *piCur++ = pcFace->mIndices[qq];
+                }
+            }
+        }
+        delete[] piFIFOStack;
+        fACMR = (float)iCacheMisses / pMesh->mNumFaces;
+        if (3.0 == fACMR)   {
+            char szBuff[128]; // should be sufficiently large in every case
+
+            // the JoinIdenticalVertices process has not been executed on this
+            // mesh, otherwise this value would normally be at least minimally
+            // smaller than 3.0 ...
+            ai_snprintf(szBuff,128,"Mesh %u: Not suitable for vcache optimization",meshNum);
+            ASSIMP_LOG_WARN(szBuff);
+            return 0.f;
+        }
+    }
+
+    // first we need to build a vertex-triangle adjacency list
+    VertexTriangleAdjacency adj(pMesh->mFaces,pMesh->mNumFaces, pMesh->mNumVertices,true);
+
+    // build a list to store per-vertex caching time stamps
+    unsigned int* const piCachingStamps = new unsigned int[pMesh->mNumVertices];
+    memset(piCachingStamps,0x0,pMesh->mNumVertices*sizeof(unsigned int));
+
+    // allocate an empty output index buffer. We store the output indices in one large array.
+    // Since the number of triangles won't change the input faces can be reused. This is how
+    // we save thousands of redundant mini allocations for aiFace::mIndices
+    const unsigned int iIdxCnt = pMesh->mNumFaces*3;
+    unsigned int* const piIBOutput = new unsigned int[iIdxCnt];
+    unsigned int* piCSIter = piIBOutput;
+
+    // allocate the flag array to hold the information
+    // whether a face has already been emitted or not
+    std::vector<bool> abEmitted(pMesh->mNumFaces,false);
+
+    // dead-end vertex index stack
+    std::stack<unsigned int, std::vector<unsigned int> > sDeadEndVStack;
+
+    // create a copy of the piNumTriPtr buffer
+    unsigned int* const piNumTriPtr = adj.mLiveTriangles;
+    const std::vector<unsigned int> piNumTriPtrNoModify(piNumTriPtr, piNumTriPtr + pMesh->mNumVertices);
+
+    // get the largest number of referenced triangles and allocate the "candidate buffer"
+    unsigned int iMaxRefTris = 0; {
+        const unsigned int* piCur = adj.mLiveTriangles;
+        const unsigned int* const piCurEnd = adj.mLiveTriangles+pMesh->mNumVertices;
+        for (;piCur != piCurEnd;++piCur) {
+            iMaxRefTris = std::max(iMaxRefTris,*piCur);
+        }
+    }
+    ai_assert(iMaxRefTris > 0);
+    unsigned int* piCandidates = new unsigned int[iMaxRefTris*3];
+    unsigned int iCacheMisses = 0;
+
+    // ...................................................................................
+    /** PSEUDOCODE for the algorithm
+
+        A = Build-Adjacency(I) Vertex-triangle adjacency
+        L = Get-Triangle-Counts(A) Per-vertex live triangle counts
+        C = Zero(Vertex-Count(I)) Per-vertex caching time stamps
+        D = Empty-Stack() Dead-end vertex stack
+        E = False(Triangle-Count(I)) Per triangle emitted flag
+        O = Empty-Index-Buffer() Empty output buffer
+        f = 0 Arbitrary starting vertex
+        s = k+1, i = 1 Time stamp and cursor
+        while f >= 0 For all valid fanning vertices
+            N = Empty-Set() 1-ring of next candidates
+            for each Triangle t in Neighbors(A, f)
+                if !Emitted(E,t)
+                    for each Vertex v in t
+                        Append(O,v) Output vertex
+                        Push(D,v) Add to dead-end stack
+                        Insert(N,v) Register as candidate
+                        L[v] = L[v]-1 Decrease live triangle count
+                        if s-C[v] > k If not in cache
+                            C[v] = s Set time stamp
+                            s = s+1 Increment time stamp
+                    E[t] = true Flag triangle as emitted
+            Select next fanning vertex
+            f = Get-Next-Vertex(I,i,k,N,C,s,L,D)
+        return O
+        */
+    // ...................................................................................
+
+    int ivdx = 0;
+    int ics = 1;
+    int iStampCnt = configCacheDepth+1;
+    while (ivdx >= 0)   {
+
+        unsigned int icnt = piNumTriPtrNoModify[ivdx];
+        unsigned int* piList = adj.GetAdjacentTriangles(ivdx);
+        unsigned int* piCurCandidate = piCandidates;
+
+        // get all triangles in the neighborhood
+        for (unsigned int tri = 0; tri < icnt;++tri)    {
+
+            // if they have not yet been emitted, add them to the output IB
+            const unsigned int fidx = *piList++;
+            if (!abEmitted[fidx])   {
+
+                // so iterate through all vertices of the current triangle
+                const aiFace* pcFace = &pMesh->mFaces[ fidx ];
+                unsigned nind = pcFace->mNumIndices;
+                for (unsigned ind = 0; ind < nind; ind++) {
+                    unsigned dp = pcFace->mIndices[ind];
+
+                    // the current vertex won't have any free triangles after this step
+                    if (ivdx != (int)dp) {
+                        // append the vertex to the dead-end stack
+                        sDeadEndVStack.push(dp);
+
+                        // register as candidate for the next step
+                        *piCurCandidate++ = dp;
+
+                        // decrease the per-vertex triangle counts
+                        piNumTriPtr[dp]--;
+                    }
+
+                    // append the vertex to the output index buffer
+                    *piCSIter++ = dp;
+
+                    // if the vertex is not yet in cache, set its cache count
+                    if (iStampCnt-piCachingStamps[dp] > configCacheDepth) {
+                        piCachingStamps[dp] = iStampCnt++;
+                        ++iCacheMisses;
+                    }
+                }
+                // flag triangle as emitted
+                abEmitted[fidx] = true;
+            }
+        }
+
+        // the vertex has now no living adjacent triangles anymore
+        piNumTriPtr[ivdx] = 0;
+
+        // get next fanning vertex
+        ivdx = -1;
+        int max_priority = -1;
+        for (unsigned int* piCur = piCandidates;piCur != piCurCandidate;++piCur)    {
+            const unsigned int dp = *piCur;
+
+            // must have live triangles
+            if (piNumTriPtr[dp] > 0)    {
+                int priority = 0;
+
+                // will the vertex be in cache, even after fanning occurs?
+                unsigned int tmp;
+                if ((tmp = iStampCnt-piCachingStamps[dp]) + 2*piNumTriPtr[dp] <= configCacheDepth) {
+                    priority = tmp;
+                }
+
+                // keep best candidate
+                if (priority > max_priority) {
+                    max_priority = priority;
+                    ivdx = dp;
+                }
+            }
+        }
+        // did we reach a dead end?
+        if (-1 == ivdx) {
+            // need to get a non-local vertex for which we have a good chance that it is still
+            // in the cache ...
+            while (!sDeadEndVStack.empty()) {
+                unsigned int iCachedIdx = sDeadEndVStack.top();
+                sDeadEndVStack.pop();
+                if (piNumTriPtr[ iCachedIdx ] > 0)  {
+                    ivdx = iCachedIdx;
+                    break;
+                }
+            }
+
+            if (-1 == ivdx) {
+                // well, there isn't such a vertex. Simply get the next vertex in input order and
+                // hope it is not too bad ...
+                while (ics < (int)pMesh->mNumVertices)  {
+                    ++ics;
+                    if (piNumTriPtr[ics] > 0)   {
+                        ivdx = ics;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    float fACMR2 = 0.0f;
+    if (!DefaultLogger::isNullLogger()) {
+        fACMR2 = (float)iCacheMisses / pMesh->mNumFaces;
+
+        // very intense verbose logging ... prepare for much text if there are many meshes
+        if ( DefaultLogger::get()->getLogSeverity() == Logger::VERBOSE) {
+            ASSIMP_LOG_DEBUG_F("Mesh %u | ACMR in: ", meshNum, " out: ", fACMR, " | ~", fACMR2, ((fACMR - fACMR2) / fACMR) * 100.f);
+        }
+
+        fACMR2 *= pMesh->mNumFaces;
+    }
+    // sort the output index buffer back to the input array
+    piCSIter = piIBOutput;
+    for (aiFace* pcFace = pMesh->mFaces; pcFace != pcEnd;++pcFace)  {
+        unsigned nind = pcFace->mNumIndices;
+        unsigned * ind = pcFace->mIndices;
+        if (nind > 0) ind[0] = *piCSIter++;
+        if (nind > 1) ind[1] = *piCSIter++;
+        if (nind > 2) ind[2] = *piCSIter++;
+    }
+
+    // delete temporary storage
+    delete[] piCachingStamps;
+    delete[] piIBOutput;
+    delete[] piCandidates;
+
+    return fACMR2;
+}
diff --git a/thirdparty/assimp/code/ImproveCacheLocality.h b/thirdparty/assimp/code/ImproveCacheLocality.h
new file mode 100644
index 0000000000..1b29ee0d6e
--- /dev/null
+++ b/thirdparty/assimp/code/ImproveCacheLocality.h
@@ -0,0 +1,100 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to reorder faces for
+ better cache locality*/
+#ifndef AI_IMPROVECACHELOCALITY_H_INC
+#define AI_IMPROVECACHELOCALITY_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/types.h>
+
+struct aiMesh;
+
+namespace Assimp
+{
+
+// ---------------------------------------------------------------------------
+/** The ImproveCacheLocalityProcess reorders all faces for improved vertex
+ *  cache locality. It tries to arrange all faces to fans and to render
+ *  faces which share vertices directly one after the other.
+ *
+ *  @note This step expects triagulated input data.
+ */
+class ImproveCacheLocalityProcess : public BaseProcess
+{
+public:
+
+    ImproveCacheLocalityProcess();
+    ~ImproveCacheLocalityProcess();
+
+public:
+
+    // -------------------------------------------------------------------
+    // Check whether the pp step is active
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    // Executes the pp step on a given scene
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    // Configures the pp step
+    void SetupProperties(const Importer* pImp);
+
+protected:
+    // -------------------------------------------------------------------
+    /** Executes the postprocessing step on the given mesh
+     * @param pMesh The mesh to process.
+     * @param meshNum Index of the mesh to process
+     */
+    float ProcessMesh( aiMesh* pMesh, unsigned int meshNum);
+
+private:
+    //! Configuration parameter: specifies the size of the cache to
+    //! optimize the vertex data for.
+    unsigned int configCacheDepth;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_IMPROVECACHELOCALITY_H_INC
diff --git a/thirdparty/assimp/code/JoinVerticesProcess.cpp b/thirdparty/assimp/code/JoinVerticesProcess.cpp
new file mode 100644
index 0000000000..914ec05b46
--- /dev/null
+++ b/thirdparty/assimp/code/JoinVerticesProcess.cpp
@@ -0,0 +1,463 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the post processing step to join identical vertices
+ * for all imported meshes
+ */
+
+
+#ifndef ASSIMP_BUILD_NO_JOINVERTICES_PROCESS
+
+#include "JoinVerticesProcess.h"
+#include "ProcessHelper.h"
+#include <assimp/Vertex.h>
+#include <assimp/TinyFormatter.h>
+#include <stdio.h>
+#include <unordered_set>
+
+using namespace Assimp;
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+JoinVerticesProcess::JoinVerticesProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+JoinVerticesProcess::~JoinVerticesProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool JoinVerticesProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_JoinIdenticalVertices) != 0;
+}
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void JoinVerticesProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("JoinVerticesProcess begin");
+
+    // get the total number of vertices BEFORE the step is executed
+    int iNumOldVertices = 0;
+    if (!DefaultLogger::isNullLogger()) {
+        for( unsigned int a = 0; a < pScene->mNumMeshes; a++)   {
+            iNumOldVertices +=  pScene->mMeshes[a]->mNumVertices;
+        }
+    }
+
+    // execute the step
+    int iNumVertices = 0;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++)
+        iNumVertices += ProcessMesh( pScene->mMeshes[a],a);
+
+    // if logging is active, print detailed statistics
+    if (!DefaultLogger::isNullLogger()) {
+        if (iNumOldVertices == iNumVertices) {
+            ASSIMP_LOG_DEBUG("JoinVerticesProcess finished ");
+        } else {
+            ASSIMP_LOG_INFO_F("JoinVerticesProcess finished | Verts in: ", iNumOldVertices,
+                " out: ", iNumVertices, " | ~",
+                ((iNumOldVertices - iNumVertices) / (float)iNumOldVertices) * 100.f );
+        }
+    }
+
+    pScene->mFlags |= AI_SCENE_FLAGS_NON_VERBOSE_FORMAT;
+}
+
+namespace {
+
+bool areVerticesEqual(const Vertex &lhs, const Vertex &rhs, bool complex)
+{
+    // A little helper to find locally close vertices faster.
+    // Try to reuse the lookup table from the last step.
+    const static float epsilon = 1e-5f;
+    // Squared because we check against squared length of the vector difference
+    static const float squareEpsilon = epsilon * epsilon;
+
+    // Square compare is useful for animeshes vertices compare
+    if ((lhs.position - rhs.position).SquareLength() > squareEpsilon) {
+        return false;
+    }
+
+    // We just test the other attributes even if they're not present in the mesh.
+    // In this case they're initialized to 0 so the comparison succeeds.
+    // By this method the non-present attributes are effectively ignored in the comparison.
+    if ((lhs.normal - rhs.normal).SquareLength() > squareEpsilon) {
+        return false;
+    }
+
+    if ((lhs.texcoords[0] - rhs.texcoords[0]).SquareLength() > squareEpsilon) {
+        return false;
+    }
+
+    if ((lhs.tangent - rhs.tangent).SquareLength() > squareEpsilon) {
+        return false;
+    }
+
+    if ((lhs.bitangent - rhs.bitangent).SquareLength() > squareEpsilon) {
+        return false;
+    }
+
+    // Usually we won't have vertex colors or multiple UVs, so we can skip from here
+    // Actually this increases runtime performance slightly, at least if branch
+    // prediction is on our side.
+    if (complex) {
+        for (int i = 0; i < 8; i++) {
+            if (i > 0 && (lhs.texcoords[i] - rhs.texcoords[i]).SquareLength() > squareEpsilon) {
+                return false;
+            }
+            if (GetColorDifference(lhs.colors[i], rhs.colors[i]) > squareEpsilon) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+template<class XMesh>
+void updateXMeshVertices(XMesh *pMesh, std::vector<Vertex> &uniqueVertices) {
+    // replace vertex data with the unique data sets
+    pMesh->mNumVertices = (unsigned int)uniqueVertices.size();
+
+    // ----------------------------------------------------------------------------
+    // NOTE - we're *not* calling Vertex::SortBack() because it would check for
+    // presence of every single vertex component once PER VERTEX. And our CPU
+    // dislikes branches, even if they're easily predictable.
+    // ----------------------------------------------------------------------------
+
+    // Position, if present (check made for aiAnimMesh)
+    if (pMesh->mVertices)
+    {
+        delete [] pMesh->mVertices;
+        pMesh->mVertices = new aiVector3D[pMesh->mNumVertices];
+        for (unsigned int a = 0; a < pMesh->mNumVertices; a++) {
+            pMesh->mVertices[a] = uniqueVertices[a].position;
+        }
+    }
+
+    // Normals, if present
+    if (pMesh->mNormals)
+    {
+        delete [] pMesh->mNormals;
+        pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
+        for( unsigned int a = 0; a < pMesh->mNumVertices; a++) {
+            pMesh->mNormals[a] = uniqueVertices[a].normal;
+        }
+    }
+    // Tangents, if present
+    if (pMesh->mTangents)
+    {
+        delete [] pMesh->mTangents;
+        pMesh->mTangents = new aiVector3D[pMesh->mNumVertices];
+        for (unsigned int a = 0; a < pMesh->mNumVertices; a++) {
+            pMesh->mTangents[a] = uniqueVertices[a].tangent;
+        }
+    }
+    // Bitangents as well
+    if (pMesh->mBitangents)
+    {
+        delete [] pMesh->mBitangents;
+        pMesh->mBitangents = new aiVector3D[pMesh->mNumVertices];
+        for (unsigned int a = 0; a < pMesh->mNumVertices; a++) {
+            pMesh->mBitangents[a] = uniqueVertices[a].bitangent;
+        }
+    }
+    // Vertex colors
+    for (unsigned int a = 0; pMesh->HasVertexColors(a); a++)
+    {
+        delete [] pMesh->mColors[a];
+        pMesh->mColors[a] = new aiColor4D[pMesh->mNumVertices];
+        for( unsigned int b = 0; b < pMesh->mNumVertices; b++) {
+            pMesh->mColors[a][b] = uniqueVertices[b].colors[a];
+        }
+    }
+    // Texture coords
+    for (unsigned int a = 0; pMesh->HasTextureCoords(a); a++)
+    {
+        delete [] pMesh->mTextureCoords[a];
+        pMesh->mTextureCoords[a] = new aiVector3D[pMesh->mNumVertices];
+        for (unsigned int b = 0; b < pMesh->mNumVertices; b++) {
+            pMesh->mTextureCoords[a][b] = uniqueVertices[b].texcoords[a];
+        }
+    }
+}
+} // namespace
+
+// ------------------------------------------------------------------------------------------------
+// Unites identical vertices in the given mesh
+int JoinVerticesProcess::ProcessMesh( aiMesh* pMesh, unsigned int meshIndex)
+{
+    static_assert( AI_MAX_NUMBER_OF_COLOR_SETS    == 8, "AI_MAX_NUMBER_OF_COLOR_SETS    == 8");
+	static_assert( AI_MAX_NUMBER_OF_TEXTURECOORDS == 8, "AI_MAX_NUMBER_OF_TEXTURECOORDS == 8");
+
+    // Return early if we don't have any positions
+    if (!pMesh->HasPositions() || !pMesh->HasFaces()) {
+        return 0;
+    }
+
+    // We should care only about used vertices, not all of them
+    // (this can happen due to original file vertices buffer being used by
+    // multiple meshes)
+    std::unordered_set<unsigned int> usedVertexIndices;
+    usedVertexIndices.reserve(pMesh->mNumVertices);
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++)
+    {
+        aiFace& face = pMesh->mFaces[a];
+        for( unsigned int b = 0; b < face.mNumIndices; b++) {
+            usedVertexIndices.insert(face.mIndices[b]);
+        }
+    }
+
+    // We'll never have more vertices afterwards.
+    std::vector<Vertex> uniqueVertices;
+    uniqueVertices.reserve( pMesh->mNumVertices);
+
+    // For each vertex the index of the vertex it was replaced by.
+    // Since the maximal number of vertices is 2^31-1, the most significand bit can be used to mark
+    //  whether a new vertex was created for the index (true) or if it was replaced by an existing
+    //  unique vertex (false). This saves an additional std::vector<bool> and greatly enhances
+    //  branching performance.
+    static_assert(AI_MAX_VERTICES == 0x7fffffff, "AI_MAX_VERTICES == 0x7fffffff");
+    std::vector<unsigned int> replaceIndex( pMesh->mNumVertices, 0xffffffff);
+
+    // float posEpsilonSqr;
+    SpatialSort* vertexFinder = NULL;
+    SpatialSort _vertexFinder;
+
+    typedef std::pair<SpatialSort,float> SpatPair;
+    if (shared) {
+        std::vector<SpatPair >* avf;
+        shared->GetProperty(AI_SPP_SPATIAL_SORT,avf);
+        if (avf)    {
+            SpatPair& blubb = (*avf)[meshIndex];
+            vertexFinder  = &blubb.first;
+            // posEpsilonSqr = blubb.second;
+        }
+    }
+    if (!vertexFinder)  {
+        // bad, need to compute it.
+        _vertexFinder.Fill(pMesh->mVertices, pMesh->mNumVertices, sizeof( aiVector3D));
+        vertexFinder = &_vertexFinder;
+        // posEpsilonSqr = ComputePositionEpsilon(pMesh);
+    }
+
+    // Again, better waste some bytes than a realloc ...
+    std::vector<unsigned int> verticesFound;
+    verticesFound.reserve(10);
+
+    // Run an optimized code path if we don't have multiple UVs or vertex colors.
+    // This should yield false in more than 99% of all imports ...
+    const bool complex = ( pMesh->GetNumColorChannels() > 0 || pMesh->GetNumUVChannels() > 1);
+    const bool hasAnimMeshes = pMesh->mNumAnimMeshes > 0;
+
+    // We'll never have more vertices afterwards.
+    std::vector<std::vector<Vertex>> uniqueAnimatedVertices;
+    if (hasAnimMeshes) {
+        uniqueAnimatedVertices.resize(pMesh->mNumAnimMeshes);
+        for (unsigned int animMeshIndex = 0; animMeshIndex < pMesh->mNumAnimMeshes; animMeshIndex++) {
+            uniqueAnimatedVertices[animMeshIndex].reserve(pMesh->mNumVertices);
+        }
+    }
+
+    // Now check each vertex if it brings something new to the table
+    for( unsigned int a = 0; a < pMesh->mNumVertices; a++)  {
+        if (usedVertexIndices.find(a) == usedVertexIndices.end()) {
+            continue;
+        }
+
+        // collect the vertex data
+        Vertex v(pMesh,a);
+
+        // collect all vertices that are close enough to the given position
+        vertexFinder->FindIdenticalPositions( v.position, verticesFound);
+        unsigned int matchIndex = 0xffffffff;
+
+        // check all unique vertices close to the position if this vertex is already present among them
+        for( unsigned int b = 0; b < verticesFound.size(); b++) {
+            const unsigned int vidx = verticesFound[b];
+            const unsigned int uidx = replaceIndex[ vidx];
+            if( uidx & 0x80000000)
+                continue;
+
+            const Vertex& uv = uniqueVertices[ uidx];
+
+            if (!areVerticesEqual(v, uv, complex)) {
+                continue;
+            }
+
+            if (hasAnimMeshes) {
+                // If given vertex is animated, then it has to be preserver 1 to 1 (base mesh and animated mesh require same topology)
+                // NOTE: not doing this totaly breaks anim meshes as they don't have their own faces (they use pMesh->mFaces)
+                bool breaksAnimMesh = false;
+                for (unsigned int animMeshIndex = 0; animMeshIndex < pMesh->mNumAnimMeshes; animMeshIndex++) {
+                    const Vertex& animatedUV = uniqueAnimatedVertices[animMeshIndex][ uidx];
+                    Vertex aniMeshVertex(pMesh->mAnimMeshes[animMeshIndex], a);
+                    if (!areVerticesEqual(aniMeshVertex, animatedUV, complex)) {
+                        breaksAnimMesh = true;
+                        break;
+                    }
+                }
+                if (breaksAnimMesh) {
+                    continue;
+                }
+            }
+
+            // we're still here -> this vertex perfectly matches our given vertex
+            matchIndex = uidx;
+            break;
+        }
+
+        // found a replacement vertex among the uniques?
+        if( matchIndex != 0xffffffff)
+        {
+            // store where to found the matching unique vertex
+            replaceIndex[a] = matchIndex | 0x80000000;
+        }
+        else
+        {
+            // no unique vertex matches it up to now -> so add it
+            replaceIndex[a] = (unsigned int)uniqueVertices.size();
+            uniqueVertices.push_back( v);
+            if (hasAnimMeshes) {
+                for (unsigned int animMeshIndex = 0; animMeshIndex < pMesh->mNumAnimMeshes; animMeshIndex++) {
+                    Vertex aniMeshVertex(pMesh->mAnimMeshes[animMeshIndex], a);
+                    uniqueAnimatedVertices[animMeshIndex].push_back(aniMeshVertex);
+                }
+            }
+        }
+    }
+
+    if (!DefaultLogger::isNullLogger() && DefaultLogger::get()->getLogSeverity() == Logger::VERBOSE)    {
+        ASSIMP_LOG_DEBUG_F(
+            "Mesh ",meshIndex,
+            " (",
+            (pMesh->mName.length ? pMesh->mName.data : "unnamed"),
+            ") | Verts in: ",pMesh->mNumVertices,
+            " out: ",
+            uniqueVertices.size(),
+            " | ~",
+            ((pMesh->mNumVertices - uniqueVertices.size()) / (float)pMesh->mNumVertices) * 100.f,
+            "%"
+        );
+    }
+
+    updateXMeshVertices(pMesh, uniqueVertices);
+    if (hasAnimMeshes) {
+        for (unsigned int animMeshIndex = 0; animMeshIndex < pMesh->mNumAnimMeshes; animMeshIndex++) {
+            updateXMeshVertices(pMesh->mAnimMeshes[animMeshIndex], uniqueAnimatedVertices[animMeshIndex]);
+        }
+    }
+
+    // adjust the indices in all faces
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++)
+    {
+        aiFace& face = pMesh->mFaces[a];
+        for( unsigned int b = 0; b < face.mNumIndices; b++) {
+            face.mIndices[b] = replaceIndex[face.mIndices[b]] & ~0x80000000;
+        }
+    }
+
+    // adjust bone vertex weights.
+    for( int a = 0; a < (int)pMesh->mNumBones; a++) {
+        aiBone* bone = pMesh->mBones[a];
+        std::vector<aiVertexWeight> newWeights;
+        newWeights.reserve( bone->mNumWeights);
+
+        if ( NULL != bone->mWeights ) {
+            for ( unsigned int b = 0; b < bone->mNumWeights; b++ ) {
+                const aiVertexWeight& ow = bone->mWeights[ b ];
+                // if the vertex is a unique one, translate it
+                if ( !( replaceIndex[ ow.mVertexId ] & 0x80000000 ) ) {
+                    aiVertexWeight nw;
+                    nw.mVertexId = replaceIndex[ ow.mVertexId ];
+                    nw.mWeight = ow.mWeight;
+                    newWeights.push_back( nw );
+                }
+            }
+        } else {
+            ASSIMP_LOG_ERROR( "X-Export: aiBone shall contain weights, but pointer to them is NULL." );
+        }
+
+        if (newWeights.size() > 0) {
+            // kill the old and replace them with the translated weights
+            delete [] bone->mWeights;
+            bone->mNumWeights = (unsigned int)newWeights.size();
+
+            bone->mWeights = new aiVertexWeight[bone->mNumWeights];
+            memcpy( bone->mWeights, &newWeights[0], bone->mNumWeights * sizeof( aiVertexWeight));
+        }
+        else {
+
+            /*  NOTE:
+             *
+             *  In the algorithm above we're assuming that there are no vertices
+             *  with a different bone weight setup at the same position. That wouldn't
+             *  make sense, but it is not absolutely impossible. SkeletonMeshBuilder
+             *  for example generates such input data if two skeleton points
+             *  share the same position. Again this doesn't make sense but is
+             *  reality for some model formats (MD5 for example uses these special
+             *  nodes as attachment tags for its weapons).
+             *
+             *  Then it is possible that a bone has no weights anymore .... as a quick
+             *  workaround, we're just removing these bones. If they're animated,
+             *  model geometry might be modified but at least there's no risk of a crash.
+             */
+            delete bone;
+            --pMesh->mNumBones;
+            for (unsigned int n = a; n < pMesh->mNumBones; ++n)  {
+                pMesh->mBones[n] = pMesh->mBones[n+1];
+            }
+
+            --a;
+            ASSIMP_LOG_WARN("Removing bone -> no weights remaining");
+        }
+    }
+    return pMesh->mNumVertices;
+}
+
+#endif // !! ASSIMP_BUILD_NO_JOINVERTICES_PROCESS
diff --git a/thirdparty/assimp/code/JoinVerticesProcess.h b/thirdparty/assimp/code/JoinVerticesProcess.h
new file mode 100644
index 0000000000..66fa362de2
--- /dev/null
+++ b/thirdparty/assimp/code/JoinVerticesProcess.h
@@ -0,0 +1,99 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to join identical vertices
+    on all imported meshes.*/
+#ifndef AI_JOINVERTICESPROCESS_H_INC
+#define AI_JOINVERTICESPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/types.h>
+
+struct aiMesh;
+
+namespace Assimp
+{
+
+// ---------------------------------------------------------------------------
+/** The JoinVerticesProcess unites identical vertices in all imported meshes.
+ * By default the importer returns meshes where each face addressed its own
+ * set of vertices even if that means that identical vertices are stored multiple
+ * times. The JoinVerticesProcess finds these identical vertices and
+ * erases all but one of the copies. This usually reduces the number of vertices
+ * in a mesh by a serious amount and is the standard form to render a mesh.
+ */
+class ASSIMP_API JoinVerticesProcess : public BaseProcess
+{
+public:
+    JoinVerticesProcess();
+    ~JoinVerticesProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+     * @param pFlags The processing flags the importer was called with. A bitwise
+     *   combination of #aiPostProcessSteps.
+     * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+public:
+    // -------------------------------------------------------------------
+    /** Unites identical vertices in the given mesh.
+     * @param pMesh The mesh to process.
+     * @param meshIndex Index of the mesh to process
+     */
+    int ProcessMesh( aiMesh* pMesh, unsigned int meshIndex);
+
+private:
+};
+
+} // end of namespace Assimp
+
+#endif // AI_CALCTANGENTSPROCESS_H_INC
diff --git a/thirdparty/assimp/code/LimitBoneWeightsProcess.cpp b/thirdparty/assimp/code/LimitBoneWeightsProcess.cpp
new file mode 100644
index 0000000000..d560f19287
--- /dev/null
+++ b/thirdparty/assimp/code/LimitBoneWeightsProcess.cpp
@@ -0,0 +1,201 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Implementation of the LimitBoneWeightsProcess post processing step */
+
+
+#include "LimitBoneWeightsProcess.h"
+#include <assimp/StringUtils.h>
+#include <assimp/postprocess.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+#include <stdio.h>
+
+using namespace Assimp;
+
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+LimitBoneWeightsProcess::LimitBoneWeightsProcess()
+{
+    mMaxWeights = AI_LMW_MAX_WEIGHTS;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+LimitBoneWeightsProcess::~LimitBoneWeightsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool LimitBoneWeightsProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_LimitBoneWeights) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void LimitBoneWeightsProcess::Execute( aiScene* pScene) {
+    ASSIMP_LOG_DEBUG("LimitBoneWeightsProcess begin");
+    for (unsigned int a = 0; a < pScene->mNumMeshes; ++a ) {
+        ProcessMesh(pScene->mMeshes[a]);
+    }
+
+    ASSIMP_LOG_DEBUG("LimitBoneWeightsProcess end");
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void LimitBoneWeightsProcess::SetupProperties(const Importer* pImp)
+{
+    // get the current value of the property
+    this->mMaxWeights = pImp->GetPropertyInteger(AI_CONFIG_PP_LBW_MAX_WEIGHTS,AI_LMW_MAX_WEIGHTS);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Unites identical vertices in the given mesh
+void LimitBoneWeightsProcess::ProcessMesh( aiMesh* pMesh)
+{
+    if( !pMesh->HasBones())
+        return;
+
+    // collect all bone weights per vertex
+    typedef std::vector< std::vector< Weight > > WeightsPerVertex;
+    WeightsPerVertex vertexWeights( pMesh->mNumVertices);
+
+    // collect all weights per vertex
+    for( unsigned int a = 0; a < pMesh->mNumBones; a++)
+    {
+        const aiBone* bone = pMesh->mBones[a];
+        for( unsigned int b = 0; b < bone->mNumWeights; b++)
+        {
+            const aiVertexWeight& w = bone->mWeights[b];
+            vertexWeights[w.mVertexId].push_back( Weight( a, w.mWeight));
+        }
+    }
+
+    unsigned int removed = 0, old_bones = pMesh->mNumBones;
+
+    // now cut the weight count if it exceeds the maximum
+    bool bChanged = false;
+    for( WeightsPerVertex::iterator vit = vertexWeights.begin(); vit != vertexWeights.end(); ++vit)
+    {
+        if( vit->size() <= mMaxWeights)
+            continue;
+
+        bChanged = true;
+
+        // more than the defined maximum -> first sort by weight in descending order. That's
+        // why we defined the < operator in such a weird way.
+        std::sort( vit->begin(), vit->end());
+
+        // now kill everything beyond the maximum count
+        unsigned int m = static_cast<unsigned int>(vit->size());
+        vit->erase( vit->begin() + mMaxWeights, vit->end());
+        removed += static_cast<unsigned int>(m-vit->size());
+
+        // and renormalize the weights
+        float sum = 0.0f;
+        for( std::vector<Weight>::const_iterator it = vit->begin(); it != vit->end(); ++it ) {
+            sum += it->mWeight;
+        }
+        if( 0.0f != sum ) {
+            const float invSum = 1.0f / sum;
+            for( std::vector<Weight>::iterator it = vit->begin(); it != vit->end(); ++it ) {
+                it->mWeight *= invSum;
+            }
+        }
+    }
+
+    if (bChanged)   {
+        // rebuild the vertex weight array for all bones
+        typedef std::vector< std::vector< aiVertexWeight > > WeightsPerBone;
+        WeightsPerBone boneWeights( pMesh->mNumBones);
+        for( unsigned int a = 0; a < vertexWeights.size(); a++)
+        {
+            const std::vector<Weight>& vw = vertexWeights[a];
+            for( std::vector<Weight>::const_iterator it = vw.begin(); it != vw.end(); ++it)
+                boneWeights[it->mBone].push_back( aiVertexWeight( a, it->mWeight));
+        }
+
+        // and finally copy the vertex weight list over to the mesh's bones
+        std::vector<bool> abNoNeed(pMesh->mNumBones,false);
+        bChanged = false;
+
+        for( unsigned int a = 0; a < pMesh->mNumBones; a++)
+        {
+            const std::vector<aiVertexWeight>& bw = boneWeights[a];
+            aiBone* bone = pMesh->mBones[a];
+
+            if ( bw.empty() )
+            {
+                abNoNeed[a] = bChanged = true;
+                continue;
+            }
+
+            // copy the weight list. should always be less weights than before, so we don't need a new allocation
+            ai_assert( bw.size() <= bone->mNumWeights);
+            bone->mNumWeights = static_cast<unsigned int>( bw.size() );
+            ::memcpy( bone->mWeights, &bw[0], bw.size() * sizeof( aiVertexWeight));
+        }
+
+        if (bChanged)   {
+            // the number of new bones is smaller than before, so we can reuse the old array
+            aiBone** ppcCur = pMesh->mBones;aiBone** ppcSrc = ppcCur;
+
+            for (std::vector<bool>::const_iterator iter  = abNoNeed.begin();iter != abNoNeed.end()  ;++iter)    {
+                if (*iter)  {
+                    delete *ppcSrc;
+                    --pMesh->mNumBones;
+                }
+                else *ppcCur++ = *ppcSrc;
+                ++ppcSrc;
+            }
+        }
+
+        if (!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_INFO_F("Removed ", removed, " weights. Input bones: ", old_bones, ". Output bones: ", pMesh->mNumBones );
+        }
+    }
+}
diff --git a/thirdparty/assimp/code/LimitBoneWeightsProcess.h b/thirdparty/assimp/code/LimitBoneWeightsProcess.h
new file mode 100644
index 0000000000..3602fd8edf
--- /dev/null
+++ b/thirdparty/assimp/code/LimitBoneWeightsProcess.h
@@ -0,0 +1,148 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Defines a post processing step to limit the number of bones affecting a single vertex. */
+#ifndef AI_LIMITBONEWEIGHTSPROCESS_H_INC
+#define AI_LIMITBONEWEIGHTSPROCESS_H_INC
+
+#include "BaseProcess.h"
+
+struct aiMesh;
+
+class LimitBoneWeightsTest;
+
+namespace Assimp
+{
+
+// NOTE: If you change these limits, don't forget to change the
+// corresponding values in all Assimp ports
+
+// **********************************************************
+// Java: ConfigProperty.java,
+//  ConfigProperty.DEFAULT_BONE_WEIGHT_LIMIT
+// **********************************************************
+
+#if (!defined AI_LMW_MAX_WEIGHTS)
+#   define AI_LMW_MAX_WEIGHTS   0x4
+#endif // !! AI_LMW_MAX_WEIGHTS
+
+// ---------------------------------------------------------------------------
+/** This post processing step limits the number of bones affecting a vertex
+* to a certain maximum value. If a vertex is affected by more than that number
+* of bones, the bone weight with the least influence on this vertex are removed.
+* The other weights on this bone are then renormalized to assure the sum weight
+* to be 1.
+*/
+class ASSIMP_API LimitBoneWeightsProcess : public BaseProcess
+{
+public:
+
+    LimitBoneWeightsProcess();
+    ~LimitBoneWeightsProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag.
+    * @param pFlags The processing flags the importer was called with.
+    *   A bitwise combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields,
+    *   false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    void SetupProperties(const Importer* pImp);
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Limits the bone weight count for all vertices in the given mesh.
+    * @param pMesh The mesh to process.
+    */
+    void ProcessMesh( aiMesh* pMesh);
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Describes a bone weight on a vertex */
+    struct Weight
+    {
+        unsigned int mBone; ///< Index of the bone
+        float mWeight;      ///< Weight of that bone on this vertex
+        Weight() AI_NO_EXCEPT
+        : mBone(0)
+        , mWeight(0.0f)
+        { }
+
+        Weight( unsigned int pBone, float pWeight)
+        {
+            mBone = pBone;
+            mWeight = pWeight;
+        }
+
+        /** Comparison operator to sort bone weights by descending weight */
+        bool operator < (const Weight& pWeight) const
+        {
+            return mWeight > pWeight.mWeight;
+        }
+    };
+
+public:
+    /** Maximum number of bones influencing any single vertex. */
+    unsigned int mMaxWeights;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_LIMITBONEWEIGHTSPROCESS_H_INC
diff --git a/thirdparty/assimp/code/MMDCpp14.h b/thirdparty/assimp/code/MMDCpp14.h
new file mode 100644
index 0000000000..638b0bfd2f
--- /dev/null
+++ b/thirdparty/assimp/code/MMDCpp14.h
@@ -0,0 +1,83 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#ifndef MMD_CPP14_H
+#define MMD_CPP14_H
+
+#include <cstddef>
+#include <memory>
+#include <type_traits>
+#include <utility>
+
+namespace mmd {
+    template<class T> struct _Unique_if {
+        typedef std::unique_ptr<T> _Single_object;
+    };
+
+    template<class T> struct _Unique_if<T[]> {
+        typedef std::unique_ptr<T[]> _Unknown_bound;
+    };
+
+    template<class T, size_t N> struct _Unique_if<T[N]> {
+        typedef void _Known_bound;
+    };
+
+    template<class T, class... Args>
+        typename _Unique_if<T>::_Single_object
+        make_unique(Args&&... args) {
+            return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+        }
+
+    template<class T>
+        typename _Unique_if<T>::_Unknown_bound
+        make_unique(size_t n) {
+            typedef typename std::remove_extent<T>::type U;
+            return std::unique_ptr<T>(new U[n]());
+        }
+
+    template<class T, class... Args>
+        typename _Unique_if<T>::_Known_bound
+        make_unique(Args&&...) = delete;
+}
+
+#endif
diff --git a/thirdparty/assimp/code/MMDImporter.cpp b/thirdparty/assimp/code/MMDImporter.cpp
new file mode 100644
index 0000000000..84b9e35a6b
--- /dev/null
+++ b/thirdparty/assimp/code/MMDImporter.cpp
@@ -0,0 +1,370 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2016, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_BUILD_NO_MMD_IMPORTER
+
+#include "MMDImporter.h"
+#include "MMDPmdParser.h"
+#include "MMDPmxParser.h"
+#include "MMDVmdParser.h"
+#include "ConvertToLHProcess.h"
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/Importer.hpp>
+#include <assimp/ai_assert.h>
+#include <assimp/scene.h>
+#include <fstream>
+#include <iomanip>
+#include <memory>
+
+static const aiImporterDesc desc = {"MMD Importer",
+                                    "",
+                                    "",
+                                    "surfaces supported?",
+                                    aiImporterFlags_SupportTextFlavour,
+                                    0,
+                                    0,
+                                    0,
+                                    0,
+                                    "pmx"};
+
+namespace Assimp {
+
+using namespace std;
+
+// ------------------------------------------------------------------------------------------------
+//  Default constructor
+MMDImporter::MMDImporter()
+: m_Buffer()
+, m_strAbsPath("") {
+    DefaultIOSystem io;
+    m_strAbsPath = io.getOsSeparator();
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Destructor.
+MMDImporter::~MMDImporter() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+//  Returns true, if file is an pmx file.
+bool MMDImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler,
+                          bool checkSig) const {
+  if (!checkSig) // Check File Extension
+  {
+    return SimpleExtensionCheck(pFile, "pmx");
+  } else // Check file Header
+  {
+    static const char *pTokens[] = {"PMX "};
+    return BaseImporter::SearchFileHeaderForToken(pIOHandler, pFile, pTokens, 1);
+  }
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiImporterDesc *MMDImporter::GetInfo() const { return &desc; }
+
+// ------------------------------------------------------------------------------------------------
+//  MMD import implementation
+void MMDImporter::InternReadFile(const std::string &file, aiScene *pScene,
+                                 IOSystem * /*pIOHandler*/) {
+  // Read file by istream
+  std::filebuf fb;
+  if (!fb.open(file, std::ios::in | std::ios::binary)) {
+    throw DeadlyImportError("Failed to open file " + file + ".");
+  }
+
+  std::istream fileStream(&fb);
+
+  // Get the file-size and validate it, throwing an exception when fails
+  fileStream.seekg(0, fileStream.end);
+  size_t fileSize = static_cast<size_t>(fileStream.tellg());
+  fileStream.seekg(0, fileStream.beg);
+
+  if (fileSize < sizeof(pmx::PmxModel)) {
+    throw DeadlyImportError(file + " is too small.");
+  }
+
+  pmx::PmxModel model;
+  model.Read(&fileStream);
+
+  CreateDataFromImport(&model, pScene);
+}
+
+// ------------------------------------------------------------------------------------------------
+void MMDImporter::CreateDataFromImport(const pmx::PmxModel *pModel,
+                                       aiScene *pScene) {
+  if (pModel == NULL) {
+    return;
+  }
+
+  aiNode *pNode = new aiNode;
+  if (!pModel->model_name.empty()) {
+    pNode->mName.Set(pModel->model_name);
+  }
+
+  pScene->mRootNode = pNode;
+
+  pNode = new aiNode;
+  pScene->mRootNode->addChildren(1, &pNode);
+  pNode->mName.Set(string(pModel->model_name) + string("_mesh"));
+
+  // split mesh by materials
+  pNode->mNumMeshes = pModel->material_count;
+  pNode->mMeshes = new unsigned int[pNode->mNumMeshes];
+  for (unsigned int index = 0; index < pNode->mNumMeshes; index++) {
+    pNode->mMeshes[index] = index;
+  }
+
+  pScene->mNumMeshes = pModel->material_count;
+  pScene->mMeshes = new aiMesh *[pScene->mNumMeshes];
+  for (unsigned int i = 0, indexStart = 0; i < pScene->mNumMeshes; i++) {
+    const int indexCount = pModel->materials[i].index_count;
+
+    pScene->mMeshes[i] = CreateMesh(pModel, indexStart, indexCount);
+    pScene->mMeshes[i]->mName = pModel->materials[i].material_name;
+    pScene->mMeshes[i]->mMaterialIndex = i;
+    indexStart += indexCount;
+  }
+
+  // create node hierarchy for bone position
+  std::unique_ptr<aiNode *[]> ppNode(new aiNode *[pModel->bone_count]);
+  for (auto i = 0; i < pModel->bone_count; i++) {
+    ppNode[i] = new aiNode(pModel->bones[i].bone_name);
+  }
+
+  for (auto i = 0; i < pModel->bone_count; i++) {
+    const pmx::PmxBone &bone = pModel->bones[i];
+
+    if (bone.parent_index < 0) {
+      pScene->mRootNode->addChildren(1, ppNode.get() + i);
+    } else {
+      ppNode[bone.parent_index]->addChildren(1, ppNode.get() + i);
+
+      aiVector3D v3 = aiVector3D(
+          bone.position[0] - pModel->bones[bone.parent_index].position[0],
+          bone.position[1] - pModel->bones[bone.parent_index].position[1],
+          bone.position[2] - pModel->bones[bone.parent_index].position[2]);
+      aiMatrix4x4::Translation(v3, ppNode[i]->mTransformation);
+    }
+  }
+
+  // create materials
+  pScene->mNumMaterials = pModel->material_count;
+  pScene->mMaterials = new aiMaterial *[pScene->mNumMaterials];
+  for (unsigned int i = 0; i < pScene->mNumMaterials; i++) {
+    pScene->mMaterials[i] = CreateMaterial(&pModel->materials[i], pModel);
+  }
+
+  // Convert everything to OpenGL space
+  MakeLeftHandedProcess convertProcess;
+  convertProcess.Execute(pScene);
+
+  FlipUVsProcess uvFlipper;
+  uvFlipper.Execute(pScene);
+
+  FlipWindingOrderProcess windingFlipper;
+  windingFlipper.Execute(pScene);
+}
+
+// ------------------------------------------------------------------------------------------------
+aiMesh *MMDImporter::CreateMesh(const pmx::PmxModel *pModel,
+                                const int indexStart, const int indexCount) {
+  aiMesh *pMesh = new aiMesh;
+
+  pMesh->mNumVertices = indexCount;
+
+  pMesh->mNumFaces = indexCount / 3;
+  pMesh->mFaces = new aiFace[pMesh->mNumFaces];
+
+  const int numIndices = 3; // triangular face
+  for (unsigned int index = 0; index < pMesh->mNumFaces; index++) {
+    pMesh->mFaces[index].mNumIndices = numIndices;
+    unsigned int *indices = new unsigned int[numIndices];
+    indices[0] = numIndices * index;
+    indices[1] = numIndices * index + 1;
+    indices[2] = numIndices * index + 2;
+    pMesh->mFaces[index].mIndices = indices;
+  }
+
+  pMesh->mVertices = new aiVector3D[pMesh->mNumVertices];
+  pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
+  pMesh->mTextureCoords[0] = new aiVector3D[pMesh->mNumVertices];
+  pMesh->mNumUVComponents[0] = 2;
+
+  // additional UVs
+  for (int i = 1; i <= pModel->setting.uv; i++) {
+    pMesh->mTextureCoords[i] = new aiVector3D[pMesh->mNumVertices];
+    pMesh->mNumUVComponents[i] = 4;
+  }
+
+  map<int, vector<aiVertexWeight>> bone_vertex_map;
+
+  // fill in contents and create bones
+  for (int index = 0; index < indexCount; index++) {
+    const pmx::PmxVertex *v =
+        &pModel->vertices[pModel->indices[indexStart + index]];
+    const float *position = v->position;
+    pMesh->mVertices[index].Set(position[0], position[1], position[2]);
+    const float *normal = v->normal;
+
+    pMesh->mNormals[index].Set(normal[0], normal[1], normal[2]);
+    pMesh->mTextureCoords[0][index].x = v->uv[0];
+    pMesh->mTextureCoords[0][index].y = v->uv[1];
+
+    for (int i = 1; i <= pModel->setting.uv; i++) {
+      // TODO: wrong here? use quaternion transform?
+      pMesh->mTextureCoords[i][index].x = v->uva[i][0];
+      pMesh->mTextureCoords[i][index].y = v->uva[i][1];
+    }
+
+    // handle bone map
+    const auto vsBDEF1_ptr =
+        dynamic_cast<pmx::PmxVertexSkinningBDEF1 *>(v->skinning.get());
+    const auto vsBDEF2_ptr =
+        dynamic_cast<pmx::PmxVertexSkinningBDEF2 *>(v->skinning.get());
+    const auto vsBDEF4_ptr =
+        dynamic_cast<pmx::PmxVertexSkinningBDEF4 *>(v->skinning.get());
+    const auto vsSDEF_ptr =
+        dynamic_cast<pmx::PmxVertexSkinningSDEF *>(v->skinning.get());
+    switch (v->skinning_type) {
+    case pmx::PmxVertexSkinningType::BDEF1:
+      bone_vertex_map[vsBDEF1_ptr->bone_index].push_back(
+          aiVertexWeight(index, 1.0));
+      break;
+    case pmx::PmxVertexSkinningType::BDEF2:
+      bone_vertex_map[vsBDEF2_ptr->bone_index1].push_back(
+          aiVertexWeight(index, vsBDEF2_ptr->bone_weight));
+      bone_vertex_map[vsBDEF2_ptr->bone_index2].push_back(
+          aiVertexWeight(index, 1.0f - vsBDEF2_ptr->bone_weight));
+      break;
+    case pmx::PmxVertexSkinningType::BDEF4:
+      bone_vertex_map[vsBDEF4_ptr->bone_index1].push_back(
+          aiVertexWeight(index, vsBDEF4_ptr->bone_weight1));
+      bone_vertex_map[vsBDEF4_ptr->bone_index2].push_back(
+          aiVertexWeight(index, vsBDEF4_ptr->bone_weight2));
+      bone_vertex_map[vsBDEF4_ptr->bone_index3].push_back(
+          aiVertexWeight(index, vsBDEF4_ptr->bone_weight3));
+      bone_vertex_map[vsBDEF4_ptr->bone_index4].push_back(
+          aiVertexWeight(index, vsBDEF4_ptr->bone_weight4));
+      break;
+    case pmx::PmxVertexSkinningType::SDEF: // TODO: how to use sdef_c, sdef_r0,
+                                           // sdef_r1?
+      bone_vertex_map[vsSDEF_ptr->bone_index1].push_back(
+          aiVertexWeight(index, vsSDEF_ptr->bone_weight));
+      bone_vertex_map[vsSDEF_ptr->bone_index2].push_back(
+          aiVertexWeight(index, 1.0f - vsSDEF_ptr->bone_weight));
+      break;
+    case pmx::PmxVertexSkinningType::QDEF:
+      const auto vsQDEF_ptr =
+          dynamic_cast<pmx::PmxVertexSkinningQDEF *>(v->skinning.get());
+      bone_vertex_map[vsQDEF_ptr->bone_index1].push_back(
+          aiVertexWeight(index, vsQDEF_ptr->bone_weight1));
+      bone_vertex_map[vsQDEF_ptr->bone_index2].push_back(
+          aiVertexWeight(index, vsQDEF_ptr->bone_weight2));
+      bone_vertex_map[vsQDEF_ptr->bone_index3].push_back(
+          aiVertexWeight(index, vsQDEF_ptr->bone_weight3));
+      bone_vertex_map[vsQDEF_ptr->bone_index4].push_back(
+          aiVertexWeight(index, vsQDEF_ptr->bone_weight4));
+      break;
+    }
+  }
+
+  // make all bones for each mesh
+  // assign bone weights to skinned bones (otherwise just initialize)
+  auto bone_ptr_ptr = new aiBone *[pModel->bone_count];
+  pMesh->mNumBones = pModel->bone_count;
+  pMesh->mBones = bone_ptr_ptr;
+  for (auto ii = 0; ii < pModel->bone_count; ++ii) {
+    auto pBone = new aiBone;
+    const auto &pmxBone = pModel->bones[ii];
+    pBone->mName = pmxBone.bone_name;
+    aiVector3D pos(pmxBone.position[0], pmxBone.position[1], pmxBone.position[2]);
+    aiMatrix4x4::Translation(-pos, pBone->mOffsetMatrix);
+    auto it = bone_vertex_map.find(ii);
+    if (it != bone_vertex_map.end()) {
+      pBone->mNumWeights = static_cast<unsigned int>(it->second.size());
+      pBone->mWeights = new aiVertexWeight[pBone->mNumWeights];
+      for (unsigned int j = 0; j < pBone->mNumWeights; j++) {
+          pBone->mWeights[j] = it->second[j];
+      }
+    }
+    bone_ptr_ptr[ii] = pBone;
+  }
+
+  return pMesh;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiMaterial *MMDImporter::CreateMaterial(const pmx::PmxMaterial *pMat,
+                                        const pmx::PmxModel *pModel) {
+  aiMaterial *mat = new aiMaterial();
+  aiString name(pMat->material_english_name);
+  mat->AddProperty(&name, AI_MATKEY_NAME);
+
+  aiColor3D diffuse(pMat->diffuse[0], pMat->diffuse[1], pMat->diffuse[2]);
+  mat->AddProperty(&diffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
+  aiColor3D specular(pMat->specular[0], pMat->specular[1], pMat->specular[2]);
+  mat->AddProperty(&specular, 1, AI_MATKEY_COLOR_SPECULAR);
+  aiColor3D ambient(pMat->ambient[0], pMat->ambient[1], pMat->ambient[2]);
+  mat->AddProperty(&ambient, 1, AI_MATKEY_COLOR_AMBIENT);
+
+  float opacity = pMat->diffuse[3];
+  mat->AddProperty(&opacity, 1, AI_MATKEY_OPACITY);
+  float shininess = pMat->specularlity;
+  mat->AddProperty(&shininess, 1, AI_MATKEY_SHININESS_STRENGTH);
+
+  if(pMat->diffuse_texture_index >= 0) {
+      aiString texture_path(pModel->textures[pMat->diffuse_texture_index]);
+      mat->AddProperty(&texture_path, AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0));
+  }
+
+  int mapping_uvwsrc = 0;
+  mat->AddProperty(&mapping_uvwsrc, 1,
+                   AI_MATKEY_UVWSRC(aiTextureType_DIFFUSE, 0));
+
+  return mat;
+}
+
+// ------------------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // !! ASSIMP_BUILD_NO_MMD_IMPORTER
diff --git a/thirdparty/assimp/code/MMDImporter.h b/thirdparty/assimp/code/MMDImporter.h
new file mode 100644
index 0000000000..4ee94eeb00
--- /dev/null
+++ b/thirdparty/assimp/code/MMDImporter.h
@@ -0,0 +1,96 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2016, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef MMD_FILE_IMPORTER_H_INC
+#define MMD_FILE_IMPORTER_H_INC
+
+#include <assimp/BaseImporter.h>
+#include "MMDPmxParser.h"
+#include <assimp/material.h>
+#include <vector>
+
+struct aiMesh;
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+/// \class  MMDImporter
+/// \brief  Imports MMD a pmx/pmd/vmd file
+// ------------------------------------------------------------------------------------------------
+class MMDImporter : public BaseImporter {
+public:
+    /// \brief  Default constructor
+    MMDImporter();
+
+    /// \brief  Destructor
+    ~MMDImporter();
+
+public:
+    /// \brief  Returns whether the class can handle the format of the given file.
+    /// \remark See BaseImporter::CanRead() for details.
+    bool CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const;
+
+private:
+    //! \brief  Appends the supported extension.
+    const aiImporterDesc* GetInfo () const;
+
+    //! \brief  File import implementation.
+    void InternReadFile(const std::string& pFile, aiScene* pScene, IOSystem* pIOHandler);
+
+    //! \brief  Create the data from imported content.
+    void CreateDataFromImport(const pmx::PmxModel* pModel, aiScene* pScene);
+
+    //! \brief Create the mesh
+    aiMesh* CreateMesh(const pmx::PmxModel* pModel, const int indexStart, const int indexCount);
+
+    //! \brief Create the material
+    aiMaterial* CreateMaterial(const pmx::PmxMaterial* pMat, const pmx::PmxModel* pModel);
+
+private:
+    //! Data buffer
+    std::vector<char> m_Buffer;
+    //! Absolute pathname of model in file system
+    std::string m_strAbsPath;
+};
+
+// ------------------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif
\ No newline at end of file
diff --git a/thirdparty/assimp/code/MMDPmdParser.h b/thirdparty/assimp/code/MMDPmdParser.h
new file mode 100644
index 0000000000..d2f2224aa1
--- /dev/null
+++ b/thirdparty/assimp/code/MMDPmdParser.h
@@ -0,0 +1,597 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include <vector>
+#include <string>
+#include <memory>
+#include <iostream>
+#include <fstream>
+#include "MMDCpp14.h"
+
+namespace pmd
+{
+	class PmdHeader
+	{
+	public:
+		std::string name;
+		std::string name_english;
+		std::string comment;
+		std::string comment_english;
+
+		bool Read(std::ifstream* stream)
+		{
+			char buffer[256];
+			stream->read(buffer, 20);
+			name = std::string(buffer);
+			stream->read(buffer, 256);
+			comment = std::string(buffer);
+			return true;
+		}
+
+		bool ReadExtension(std::ifstream* stream)
+		{
+			char buffer[256];
+			stream->read(buffer, 20);
+			name_english = std::string(buffer);
+			stream->read(buffer, 256);
+			comment_english = std::string(buffer);
+			return true;
+		}
+	};
+
+	class PmdVertex
+	{
+	public:
+		float position[3];
+
+		float normal[3];
+
+		float uv[2];
+
+		uint16_t bone_index[2];
+
+		uint8_t bone_weight;
+
+		bool edge_invisible;
+
+		bool Read(std::ifstream* stream)
+		{
+			stream->read((char*) position, sizeof(float) * 3);
+			stream->read((char*) normal, sizeof(float) * 3);
+			stream->read((char*) uv, sizeof(float) * 2);
+			stream->read((char*) bone_index, sizeof(uint16_t) * 2);
+			stream->read((char*) &bone_weight, sizeof(uint8_t));
+			stream->read((char*) &edge_invisible, sizeof(uint8_t));
+			return true;
+		}
+	};
+
+	class PmdMaterial
+	{
+	public:
+		float diffuse[4];
+		float power;
+		float specular[3];
+		float ambient[3];
+		uint8_t toon_index;
+		uint8_t edge_flag;
+		uint32_t index_count;
+		std::string texture_filename;
+		std::string sphere_filename;
+
+		bool Read(std::ifstream* stream)
+		{
+			char buffer[20];
+			stream->read((char*) &diffuse, sizeof(float) * 4);
+			stream->read((char*) &power, sizeof(float));
+			stream->read((char*) &specular, sizeof(float) * 3);
+			stream->read((char*) &ambient, sizeof(float) * 3);
+			stream->read((char*) &toon_index, sizeof(uint8_t));
+			stream->read((char*) &edge_flag, sizeof(uint8_t));
+			stream->read((char*) &index_count, sizeof(uint32_t));
+			stream->read((char*) &buffer, sizeof(char) * 20);
+			char* pstar = strchr(buffer, '*');
+			if (NULL == pstar)
+			{
+				texture_filename = std::string(buffer);
+				sphere_filename.clear();
+			}
+			else {
+				*pstar = 0;
+				texture_filename = std::string(buffer);
+				sphere_filename = std::string(pstar+1);
+			}
+			return true;
+		}
+	};
+
+	enum class BoneType : uint8_t
+	{
+		Rotation,
+		RotationAndMove,
+		IkEffector,
+		Unknown,
+		IkEffectable,
+		RotationEffectable,
+		IkTarget,
+		Invisible,
+		Twist,
+		RotationMovement
+	};
+
+	class PmdBone
+	{
+	public:
+		std::string name;
+		std::string name_english;
+		uint16_t parent_bone_index;
+		uint16_t tail_pos_bone_index;
+		BoneType bone_type;
+		uint16_t ik_parent_bone_index;
+		float bone_head_pos[3];
+
+		void Read(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read(buffer, 20);
+			name = std::string(buffer);
+			stream->read((char*) &parent_bone_index, sizeof(uint16_t));
+			stream->read((char*) &tail_pos_bone_index, sizeof(uint16_t));
+			stream->read((char*) &bone_type, sizeof(uint8_t));
+			stream->read((char*) &ik_parent_bone_index, sizeof(uint16_t));
+			stream->read((char*) &bone_head_pos, sizeof(float) * 3);
+		}
+
+		void ReadExpantion(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read(buffer, 20);
+			name_english = std::string(buffer);
+		}
+	};
+
+	class PmdIk
+	{
+	public:
+		uint16_t ik_bone_index;
+		uint16_t target_bone_index;
+		uint16_t interations;
+		float angle_limit;
+		std::vector<uint16_t> ik_child_bone_index;
+
+		void Read(std::istream *stream)
+		{
+			stream->read((char *) &ik_bone_index, sizeof(uint16_t));
+			stream->read((char *) &target_bone_index, sizeof(uint16_t));
+			uint8_t ik_chain_length;
+			stream->read((char*) &ik_chain_length, sizeof(uint8_t));
+			stream->read((char *) &interations, sizeof(uint16_t));
+			stream->read((char *) &angle_limit, sizeof(float));
+			ik_child_bone_index.resize(ik_chain_length);
+			for (int i = 0; i < ik_chain_length; i++)
+			{
+				stream->read((char *) &ik_child_bone_index[i], sizeof(uint16_t));
+			}
+		}
+	};
+
+	class PmdFaceVertex
+	{
+	public:
+		int vertex_index;
+		float position[3];
+
+		void Read(std::istream *stream)
+		{
+			stream->read((char *) &vertex_index, sizeof(int));
+			stream->read((char *) position, sizeof(float) * 3);
+		}
+	};
+
+	enum class FaceCategory : uint8_t
+	{
+		Base,
+		Eyebrow,
+		Eye,
+		Mouth,
+		Other
+	};
+
+	class PmdFace
+	{
+	public:
+		std::string name;
+		FaceCategory type;
+		std::vector<PmdFaceVertex> vertices;
+		std::string name_english;
+
+		void Read(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read(buffer, 20);
+			name = std::string(buffer);
+			int vertex_count;
+			stream->read((char*) &vertex_count, sizeof(int));
+			stream->read((char*) &type, sizeof(uint8_t));
+			vertices.resize(vertex_count);
+			for (int i = 0; i < vertex_count; i++)
+			{
+				vertices[i].Read(stream);
+			}
+		}
+
+		void ReadExpantion(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read(buffer, 20);
+			name_english = std::string(buffer);
+		}
+	};
+
+	class PmdBoneDispName
+	{
+	public:
+		std::string bone_disp_name;
+		std::string bone_disp_name_english;
+
+		void Read(std::istream *stream)
+		{
+			char buffer[50];
+			stream->read(buffer, 50);
+			bone_disp_name = std::string(buffer);
+			bone_disp_name_english.clear();
+		}
+		void ReadExpantion(std::istream *stream)
+		{
+			char buffer[50];
+			stream->read(buffer, 50);
+			bone_disp_name_english = std::string(buffer);
+		}
+	};
+
+	class PmdBoneDisp
+	{
+	public:
+		uint16_t bone_index;
+		uint8_t bone_disp_index;
+
+		void Read(std::istream *stream)
+		{
+			stream->read((char*) &bone_index, sizeof(uint16_t));
+			stream->read((char*) &bone_disp_index, sizeof(uint8_t));
+		}
+	};
+
+	enum class RigidBodyShape : uint8_t
+	{
+		Sphere = 0,
+		Box = 1,
+		Cpusel = 2
+	};
+
+	enum class RigidBodyType : uint8_t
+	{
+		BoneConnected = 0,
+		Physics = 1,
+		ConnectedPhysics = 2
+	};
+
+	class PmdRigidBody
+	{
+	public:
+		std::string name;
+		uint16_t related_bone_index;
+		uint8_t group_index;
+		uint16_t mask;
+		RigidBodyShape shape;
+		float size[3];
+		float position[3];
+		float orientation[3];
+		float weight;
+		float linear_damping;
+		float anglar_damping;
+		float restitution;
+		float friction;
+		RigidBodyType rigid_type;
+
+		void Read(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read(buffer, sizeof(char) * 20);
+			name = (std::string(buffer));
+			stream->read((char*) &related_bone_index, sizeof(uint16_t));
+			stream->read((char*) &group_index, sizeof(uint8_t));
+			stream->read((char*) &mask, sizeof(uint16_t));
+			stream->read((char*) &shape, sizeof(uint8_t));
+			stream->read((char*) size, sizeof(float) * 3);
+			stream->read((char*) position, sizeof(float) * 3);
+			stream->read((char*) orientation, sizeof(float) * 3);
+			stream->read((char*) &weight, sizeof(float));
+			stream->read((char*) &linear_damping, sizeof(float));
+			stream->read((char*) &anglar_damping, sizeof(float));
+			stream->read((char*) &restitution, sizeof(float));
+			stream->read((char*) &friction, sizeof(float));
+			stream->read((char*) &rigid_type, sizeof(char));
+		}
+	};
+
+	class PmdConstraint
+	{
+	public:
+		std::string name;
+		uint32_t rigid_body_index_a;
+		uint32_t rigid_body_index_b;
+		float position[3];
+		float orientation[3];
+		float linear_lower_limit[3];
+		float linear_upper_limit[3];
+		float angular_lower_limit[3];
+		float angular_upper_limit[3];
+		float linear_stiffness[3];
+		float angular_stiffness[3];
+
+		void Read(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read(buffer, 20);
+			name = std::string(buffer);
+			stream->read((char *) &rigid_body_index_a, sizeof(uint32_t));
+			stream->read((char *) &rigid_body_index_b, sizeof(uint32_t));
+			stream->read((char *) position, sizeof(float) * 3);
+			stream->read((char *) orientation, sizeof(float) * 3);
+			stream->read((char *) linear_lower_limit, sizeof(float) * 3);
+			stream->read((char *) linear_upper_limit, sizeof(float) * 3);
+			stream->read((char *) angular_lower_limit, sizeof(float) * 3);
+			stream->read((char *) angular_upper_limit, sizeof(float) * 3);
+			stream->read((char *) linear_stiffness, sizeof(float) * 3);
+			stream->read((char *) angular_stiffness, sizeof(float) * 3);
+		}
+	};
+
+	class PmdModel
+	{
+	public:
+		float version;
+		PmdHeader header;
+		std::vector<PmdVertex> vertices;
+		std::vector<uint16_t> indices;
+		std::vector<PmdMaterial> materials;
+		std::vector<PmdBone> bones;
+		std::vector<PmdIk> iks;
+		std::vector<PmdFace> faces;
+		std::vector<uint16_t> faces_indices;
+		std::vector<PmdBoneDispName> bone_disp_name;
+		std::vector<PmdBoneDisp> bone_disp;
+		std::vector<std::string> toon_filenames;
+		std::vector<PmdRigidBody> rigid_bodies;
+		std::vector<PmdConstraint> constraints;
+
+		static std::unique_ptr<PmdModel> LoadFromFile(const char *filename)
+		{
+			std::ifstream stream(filename, std::ios::binary);
+			if (stream.fail())
+			{
+				std::cerr << "could not open \"" << filename << "\"" << std::endl;
+				return nullptr;
+			}
+			auto result = LoadFromStream(&stream);
+			stream.close();
+			return result;
+		}
+
+		static std::unique_ptr<PmdModel> LoadFromStream(std::ifstream *stream)
+		{
+			auto result = mmd::make_unique<PmdModel>();
+			char buffer[100];
+
+			// magic
+			char magic[3];
+			stream->read(magic, 3);
+			if (magic[0] != 'P' || magic[1] != 'm' || magic[2] != 'd')
+			{
+				std::cerr << "invalid file" << std::endl;
+				return nullptr;
+			}
+
+			// version
+			stream->read((char*) &(result->version), sizeof(float));
+			if (result ->version != 1.0f)
+			{
+				std::cerr << "invalid version" << std::endl;
+				return nullptr;
+			}
+
+			// header
+			result->header.Read(stream);
+
+			// vertices
+			uint32_t vertex_num;
+			stream->read((char*) &vertex_num, sizeof(uint32_t));
+			result->vertices.resize(vertex_num);
+			for (uint32_t i = 0; i < vertex_num; i++)
+			{
+				result->vertices[i].Read(stream);
+			}
+
+			// indices
+			uint32_t index_num;
+			stream->read((char*) &index_num, sizeof(uint32_t));
+			result->indices.resize(index_num);
+			for (uint32_t i = 0; i < index_num; i++)
+			{
+				stream->read((char*) &result->indices[i], sizeof(uint16_t));
+			}
+
+			// materials
+			uint32_t material_num;
+			stream->read((char*) &material_num, sizeof(uint32_t));
+			result->materials.resize(material_num);
+			for (uint32_t i = 0; i < material_num; i++)
+			{
+				result->materials[i].Read(stream);
+			}
+
+			// bones
+			uint16_t bone_num;
+			stream->read((char*) &bone_num, sizeof(uint16_t));
+			result->bones.resize(bone_num);
+			for (uint32_t i = 0; i < bone_num; i++)
+			{
+				result->bones[i].Read(stream);
+			}
+
+			// iks
+			uint16_t ik_num;
+			stream->read((char*) &ik_num, sizeof(uint16_t));
+			result->iks.resize(ik_num);
+			for (uint32_t i = 0; i < ik_num; i++)
+			{
+				result->iks[i].Read(stream);
+			}
+
+			// faces
+			uint16_t face_num;
+			stream->read((char*) &face_num, sizeof(uint16_t));
+			result->faces.resize(face_num);
+			for (uint32_t i = 0; i < face_num; i++)
+			{
+				result->faces[i].Read(stream);
+			}
+
+			// face frames
+			uint8_t face_frame_num;
+			stream->read((char*) &face_frame_num, sizeof(uint8_t));
+			result->faces_indices.resize(face_frame_num);
+			for (uint32_t i = 0; i < face_frame_num; i++)
+			{
+				stream->read((char*) &result->faces_indices[i], sizeof(uint16_t));
+			}
+
+			// bone names
+			uint8_t bone_disp_num;
+			stream->read((char*) &bone_disp_num, sizeof(uint8_t));
+			result->bone_disp_name.resize(bone_disp_num);
+			for (uint32_t i = 0; i < bone_disp_num; i++)
+			{
+				result->bone_disp_name[i].Read(stream);
+			}
+
+			// bone frame
+			uint32_t bone_frame_num;
+			stream->read((char*) &bone_frame_num, sizeof(uint32_t));
+			result->bone_disp.resize(bone_frame_num);
+			for (uint32_t i = 0; i < bone_frame_num; i++)
+			{
+				result->bone_disp[i].Read(stream);
+			}
+
+			// english name
+			bool english;
+			stream->read((char*) &english, sizeof(char));
+			if (english)
+			{
+				result->header.ReadExtension(stream);
+				for (uint32_t i = 0; i < bone_num; i++)
+				{
+					result->bones[i].ReadExpantion(stream);
+				}
+				for (uint32_t i = 0; i < face_num; i++)
+				{
+					if (result->faces[i].type == pmd::FaceCategory::Base)
+					{
+						continue;
+					}
+					result->faces[i].ReadExpantion(stream);
+				}
+				for (uint32_t i = 0; i < result->bone_disp_name.size(); i++)
+				{
+					result->bone_disp_name[i].ReadExpantion(stream);
+				}
+			}
+
+			// toon textures
+			if (stream->peek() == std::ios::traits_type::eof())
+			{
+				result->toon_filenames.clear();
+			}
+			else {
+				result->toon_filenames.resize(10);
+				for (uint32_t i = 0; i < 10; i++)
+				{
+					stream->read(buffer, 100);
+					result->toon_filenames[i] = std::string(buffer);
+				}
+			}
+
+			// physics
+			if (stream->peek() == std::ios::traits_type::eof())
+			{
+				result->rigid_bodies.clear();
+				result->constraints.clear();
+			}
+			else {
+				uint32_t rigid_body_num;
+				stream->read((char*) &rigid_body_num, sizeof(uint32_t));
+				result->rigid_bodies.resize(rigid_body_num);
+				for (uint32_t i = 0; i < rigid_body_num; i++)
+				{
+					result->rigid_bodies[i].Read(stream);
+				}
+				uint32_t constraint_num;
+				stream->read((char*) &constraint_num, sizeof(uint32_t));
+				result->constraints.resize(constraint_num);
+				for (uint32_t i = 0; i < constraint_num; i++)
+				{
+					result->constraints[i].Read(stream);
+				}
+			}
+
+			if (stream->peek() != std::ios::traits_type::eof())
+			{
+				std::cerr << "there is unknown data" << std::endl;
+			}
+
+			return result;
+		}
+	};
+}
diff --git a/thirdparty/assimp/code/MMDPmxParser.cpp b/thirdparty/assimp/code/MMDPmxParser.cpp
new file mode 100644
index 0000000000..7425ceac22
--- /dev/null
+++ b/thirdparty/assimp/code/MMDPmxParser.cpp
@@ -0,0 +1,604 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#include <utility>
+#include "MMDPmxParser.h"
+#include <assimp/StringUtils.h>
+#include "../contrib/utf8cpp/source/utf8.h"
+#include <assimp/Exceptional.h>
+
+namespace pmx
+{
+	int ReadIndex(std::istream *stream, int size)
+	{
+		switch (size)
+		{
+		case 1:
+			uint8_t tmp8;
+			stream->read((char*) &tmp8, sizeof(uint8_t));
+			if (255 == tmp8)
+			{
+				return -1;
+			}
+			else {
+				return (int) tmp8;
+			}
+		case 2:
+			uint16_t tmp16;
+			stream->read((char*) &tmp16, sizeof(uint16_t));
+			if (65535 == tmp16)
+			{
+				return -1;
+			}
+			else {
+				return (int) tmp16;
+			}
+		case 4:
+			int tmp32;
+			stream->read((char*) &tmp32, sizeof(int));
+			return tmp32;
+		default:
+			return -1;
+		}
+	}
+
+	std::string ReadString(std::istream *stream, uint8_t encoding)
+	{
+		int size;
+		stream->read((char*) &size, sizeof(int));
+		std::vector<char> buffer;
+		if (size == 0)
+		{
+			return std::string("");
+		}
+		buffer.reserve(size);
+		stream->read((char*) buffer.data(), size);
+		if (encoding == 0)
+		{
+			// UTF16 to UTF8
+			const uint16_t* sourceStart = (uint16_t*)buffer.data();
+			const unsigned int targetSize = size * 3; // enough to encode
+			char *targetStart = new char[targetSize];
+            std::memset(targetStart, 0, targetSize * sizeof(char));
+            
+            utf8::utf16to8( sourceStart, sourceStart + size/2, targetStart );
+
+			std::string result(targetStart);
+            delete [] targetStart;
+			return result;
+		}
+		else
+		{
+			// the name is already UTF8
+			return std::string((const char*)buffer.data(), size);
+		}
+	}
+
+	void PmxSetting::Read(std::istream *stream)
+	{
+		uint8_t count;
+		stream->read((char*) &count, sizeof(uint8_t));
+		if (count < 8)
+		{
+			throw DeadlyImportError("MMD: invalid size");
+		}
+		stream->read((char*) &encoding, sizeof(uint8_t));
+		stream->read((char*) &uv, sizeof(uint8_t));
+		stream->read((char*) &vertex_index_size, sizeof(uint8_t));
+		stream->read((char*) &texture_index_size, sizeof(uint8_t));
+		stream->read((char*) &material_index_size, sizeof(uint8_t));
+		stream->read((char*) &bone_index_size, sizeof(uint8_t));
+		stream->read((char*) &morph_index_size, sizeof(uint8_t));
+		stream->read((char*) &rigidbody_index_size, sizeof(uint8_t));
+		uint8_t temp;
+		for (int i = 8; i < count; i++)
+		{
+			stream->read((char*)&temp, sizeof(uint8_t));
+		}
+	}
+
+	void PmxVertexSkinningBDEF1::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_index = ReadIndex(stream, setting->bone_index_size);
+	}
+
+	void PmxVertexSkinningBDEF2::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_index1 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index2 = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->bone_weight, sizeof(float));
+	}
+
+	void PmxVertexSkinningBDEF4::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_index1 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index2 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index3 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index4 = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->bone_weight1, sizeof(float));
+		stream->read((char*) &this->bone_weight2, sizeof(float));
+		stream->read((char*) &this->bone_weight3, sizeof(float));
+		stream->read((char*) &this->bone_weight4, sizeof(float));
+	}
+
+	void PmxVertexSkinningSDEF::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_index1 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index2 = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->bone_weight, sizeof(float));
+		stream->read((char*) this->sdef_c, sizeof(float) * 3);
+		stream->read((char*) this->sdef_r0, sizeof(float) * 3);
+		stream->read((char*) this->sdef_r1, sizeof(float) * 3);
+	}
+
+	void PmxVertexSkinningQDEF::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_index1 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index2 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index3 = ReadIndex(stream, setting->bone_index_size);
+		this->bone_index4 = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->bone_weight1, sizeof(float));
+		stream->read((char*) &this->bone_weight2, sizeof(float));
+		stream->read((char*) &this->bone_weight3, sizeof(float));
+		stream->read((char*) &this->bone_weight4, sizeof(float));
+	}
+
+	void PmxVertex::Read(std::istream *stream, PmxSetting *setting)
+	{
+		stream->read((char*) this->position, sizeof(float) * 3);
+		stream->read((char*) this->normal, sizeof(float) * 3);
+		stream->read((char*) this->uv, sizeof(float) * 2);
+		for (int i = 0; i < setting->uv; ++i)
+		{
+			stream->read((char*) this->uva[i], sizeof(float) * 4);
+		}
+		stream->read((char*) &this->skinning_type, sizeof(PmxVertexSkinningType));
+		switch (this->skinning_type)
+		{
+		case PmxVertexSkinningType::BDEF1:
+			this->skinning = mmd::make_unique<PmxVertexSkinningBDEF1>();
+			break;
+		case PmxVertexSkinningType::BDEF2:
+			this->skinning = mmd::make_unique<PmxVertexSkinningBDEF2>();
+			break;
+		case PmxVertexSkinningType::BDEF4:
+			this->skinning = mmd::make_unique<PmxVertexSkinningBDEF4>();
+			break;
+		case PmxVertexSkinningType::SDEF:
+			this->skinning = mmd::make_unique<PmxVertexSkinningSDEF>();
+			break;
+		case PmxVertexSkinningType::QDEF:
+			this->skinning = mmd::make_unique<PmxVertexSkinningQDEF>();
+			break;
+		default:
+			throw "invalid skinning type";
+		}
+		this->skinning->Read(stream, setting);
+		stream->read((char*) &this->edge, sizeof(float));
+	}
+
+	void PmxMaterial::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->material_name = ReadString(stream, setting->encoding);
+		this->material_english_name = ReadString(stream, setting->encoding);
+		stream->read((char*) this->diffuse, sizeof(float) * 4);
+		stream->read((char*) this->specular, sizeof(float) * 3);
+		stream->read((char*) &this->specularlity, sizeof(float));
+		stream->read((char*) this->ambient, sizeof(float) * 3);
+		stream->read((char*) &this->flag, sizeof(uint8_t));
+		stream->read((char*) this->edge_color, sizeof(float) * 4);
+		stream->read((char*) &this->edge_size, sizeof(float));
+		this->diffuse_texture_index = ReadIndex(stream, setting->texture_index_size);
+		this->sphere_texture_index = ReadIndex(stream, setting->texture_index_size);
+		stream->read((char*) &this->sphere_op_mode, sizeof(uint8_t));
+		stream->read((char*) &this->common_toon_flag, sizeof(uint8_t));
+		if (this->common_toon_flag)
+		{
+			stream->read((char*) &this->toon_texture_index, sizeof(uint8_t));
+		}
+		else {
+			this->toon_texture_index = ReadIndex(stream, setting->texture_index_size);
+		}
+		this->memo = ReadString(stream, setting->encoding);
+		stream->read((char*) &this->index_count, sizeof(int));
+	}
+
+	void PmxIkLink::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->link_target = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->angle_lock, sizeof(uint8_t));
+		if (angle_lock == 1)
+		{
+			stream->read((char*) this->max_radian, sizeof(float) * 3);
+			stream->read((char*) this->min_radian, sizeof(float) * 3);
+		}
+	}
+
+	void PmxBone::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_name = ReadString(stream, setting->encoding);
+		this->bone_english_name = ReadString(stream, setting->encoding);
+		stream->read((char*) this->position, sizeof(float) * 3);
+		this->parent_index = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->level, sizeof(int));
+		stream->read((char*) &this->bone_flag, sizeof(uint16_t));
+		if (this->bone_flag & 0x0001) {
+			this->target_index = ReadIndex(stream, setting->bone_index_size);
+		}
+		else {
+			stream->read((char*)this->offset, sizeof(float) * 3);
+		}
+		if (this->bone_flag & (0x0100 | 0x0200)) {
+			this->grant_parent_index = ReadIndex(stream, setting->bone_index_size);
+			stream->read((char*) &this->grant_weight, sizeof(float));
+		}
+		if (this->bone_flag & 0x0400) {
+			stream->read((char*)this->lock_axis_orientation, sizeof(float) * 3);
+		}
+		if (this->bone_flag & 0x0800) {
+			stream->read((char*)this->local_axis_x_orientation, sizeof(float) * 3);
+			stream->read((char*)this->local_axis_y_orientation, sizeof(float) * 3);
+		}
+		if (this->bone_flag & 0x2000) {
+			stream->read((char*) &this->key, sizeof(int));
+		}
+		if (this->bone_flag & 0x0020) {
+			this->ik_target_bone_index = ReadIndex(stream, setting->bone_index_size);
+			stream->read((char*) &ik_loop, sizeof(int));
+			stream->read((char*) &ik_loop_angle_limit, sizeof(float));
+			stream->read((char*) &ik_link_count, sizeof(int));
+			this->ik_links = mmd::make_unique<PmxIkLink []>(ik_link_count);
+			for (int i = 0; i < ik_link_count; i++) {
+				ik_links[i].Read(stream, setting);
+			}
+		}
+	}
+
+	void PmxMorphVertexOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->vertex_index = ReadIndex(stream, setting->vertex_index_size);
+		stream->read((char*)this->position_offset, sizeof(float) * 3);
+	}
+
+	void PmxMorphUVOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->vertex_index = ReadIndex(stream, setting->vertex_index_size);
+		stream->read((char*)this->uv_offset, sizeof(float) * 4);
+	}
+
+	void PmxMorphBoneOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->bone_index = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*)this->translation, sizeof(float) * 3);
+		stream->read((char*)this->rotation, sizeof(float) * 4);
+	}
+
+	void PmxMorphMaterialOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->material_index = ReadIndex(stream, setting->material_index_size);
+		stream->read((char*) &this->offset_operation, sizeof(uint8_t));
+		stream->read((char*)this->diffuse, sizeof(float) * 4);
+		stream->read((char*)this->specular, sizeof(float) * 3);
+		stream->read((char*) &this->specularity, sizeof(float));
+		stream->read((char*)this->ambient, sizeof(float) * 3);
+		stream->read((char*)this->edge_color, sizeof(float) * 4);
+		stream->read((char*) &this->edge_size, sizeof(float));
+		stream->read((char*)this->texture_argb, sizeof(float) * 4);
+		stream->read((char*)this->sphere_texture_argb, sizeof(float) * 4);
+		stream->read((char*)this->toon_texture_argb, sizeof(float) * 4);
+	}
+
+	void PmxMorphGroupOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->morph_index = ReadIndex(stream, setting->morph_index_size);
+		stream->read((char*) &this->morph_weight, sizeof(float));
+	}
+
+	void PmxMorphFlipOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->morph_index = ReadIndex(stream, setting->morph_index_size);
+		stream->read((char*) &this->morph_value, sizeof(float));
+	}
+
+	void PmxMorphImplusOffset::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->rigid_body_index = ReadIndex(stream, setting->rigidbody_index_size);
+		stream->read((char*) &this->is_local, sizeof(uint8_t));
+		stream->read((char*)this->velocity, sizeof(float) * 3);
+		stream->read((char*)this->angular_torque, sizeof(float) * 3);
+	}
+
+	void PmxMorph::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->morph_name = ReadString(stream, setting->encoding);
+		this->morph_english_name = ReadString(stream, setting->encoding);
+		stream->read((char*) &category, sizeof(MorphCategory));
+		stream->read((char*) &morph_type, sizeof(MorphType));
+		stream->read((char*) &this->offset_count, sizeof(int));
+		switch (this->morph_type)
+		{
+		case MorphType::Group:
+			group_offsets = mmd::make_unique<PmxMorphGroupOffset []>(this->offset_count);
+			for (int i = 0; i < offset_count; i++)
+			{
+				group_offsets[i].Read(stream, setting);
+			}
+			break;
+		case MorphType::Vertex:
+			vertex_offsets = mmd::make_unique<PmxMorphVertexOffset []>(this->offset_count);
+			for (int i = 0; i < offset_count; i++)
+			{
+				vertex_offsets[i].Read(stream, setting);
+			}
+			break;
+		case MorphType::Bone:
+			bone_offsets = mmd::make_unique<PmxMorphBoneOffset []>(this->offset_count);
+			for (int i = 0; i < offset_count; i++)
+			{
+				bone_offsets[i].Read(stream, setting);
+			}
+			break;
+		case MorphType::Matrial:
+			material_offsets = mmd::make_unique<PmxMorphMaterialOffset []>(this->offset_count);
+			for (int i = 0; i < offset_count; i++)
+			{
+				material_offsets[i].Read(stream, setting);
+			}
+			break;
+		case MorphType::UV:
+		case MorphType::AdditionalUV1:
+		case MorphType::AdditionalUV2:
+		case MorphType::AdditionalUV3:
+		case MorphType::AdditionalUV4:
+			uv_offsets = mmd::make_unique<PmxMorphUVOffset []>(this->offset_count);
+			for (int i = 0; i < offset_count; i++)
+			{
+				uv_offsets[i].Read(stream, setting);
+			}
+			break;
+		default:
+            throw DeadlyImportError("MMD: unknown morth type");
+		}
+	}
+
+	void PmxFrameElement::Read(std::istream *stream, PmxSetting *setting)
+	{
+		stream->read((char*) &this->element_target, sizeof(uint8_t));
+		if (this->element_target == 0x00)
+		{
+			this->index = ReadIndex(stream, setting->bone_index_size);
+		}
+		else {
+			this->index = ReadIndex(stream, setting->morph_index_size);
+		}
+	}
+
+	void PmxFrame::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->frame_name = ReadString(stream, setting->encoding);
+		this->frame_english_name = ReadString(stream, setting->encoding);
+		stream->read((char*) &this->frame_flag, sizeof(uint8_t));
+		stream->read((char*) &this->element_count, sizeof(int));
+		this->elements = mmd::make_unique<PmxFrameElement []>(this->element_count);
+		for (int i = 0; i < this->element_count; i++)
+		{
+			this->elements[i].Read(stream, setting);
+		}
+	}
+
+	void PmxRigidBody::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->girid_body_name = ReadString(stream, setting->encoding);
+		this->girid_body_english_name = ReadString(stream, setting->encoding);
+		this->target_bone = ReadIndex(stream, setting->bone_index_size);
+		stream->read((char*) &this->group, sizeof(uint8_t));
+		stream->read((char*) &this->mask, sizeof(uint16_t));
+		stream->read((char*) &this->shape, sizeof(uint8_t));
+		stream->read((char*) this->size, sizeof(float) * 3);
+		stream->read((char*) this->position, sizeof(float) * 3);
+		stream->read((char*) this->orientation, sizeof(float) * 3);
+		stream->read((char*) &this->mass, sizeof(float));
+		stream->read((char*) &this->move_attenuation, sizeof(float));
+		stream->read((char*) &this->rotation_attenuation, sizeof(float));
+		stream->read((char*) &this->repulsion, sizeof(float));
+		stream->read((char*) &this->friction, sizeof(float));
+		stream->read((char*) &this->physics_calc_type, sizeof(uint8_t));
+	}
+
+	void PmxJointParam::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->rigid_body1 = ReadIndex(stream, setting->rigidbody_index_size);
+		this->rigid_body2 = ReadIndex(stream, setting->rigidbody_index_size);
+		stream->read((char*) this->position, sizeof(float) * 3);
+		stream->read((char*) this->orientaiton, sizeof(float) * 3);
+		stream->read((char*) this->move_limitation_min, sizeof(float) * 3);
+		stream->read((char*) this->move_limitation_max, sizeof(float) * 3);
+		stream->read((char*) this->rotation_limitation_min, sizeof(float) * 3);
+		stream->read((char*) this->rotation_limitation_max, sizeof(float) * 3);
+		stream->read((char*) this->spring_move_coefficient, sizeof(float) * 3);
+		stream->read((char*) this->spring_rotation_coefficient, sizeof(float) * 3);
+	}
+
+	void PmxJoint::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->joint_name = ReadString(stream, setting->encoding);
+		this->joint_english_name = ReadString(stream, setting->encoding);
+		stream->read((char*) &this->joint_type, sizeof(uint8_t));
+		this->param.Read(stream, setting);
+	}
+
+	void PmxAncherRigidBody::Read(std::istream *stream, PmxSetting *setting)
+	{
+		this->related_rigid_body = ReadIndex(stream, setting->rigidbody_index_size);
+		this->related_vertex = ReadIndex(stream, setting->vertex_index_size);
+		stream->read((char*) &this->is_near, sizeof(uint8_t));
+	}
+
+    void PmxSoftBody::Read(std::istream * /*stream*/, PmxSetting * /*setting*/)
+	{
+		std::cerr << "Not Implemented Exception" << std::endl;
+        throw DeadlyImportError("MMD: Not Implemented Exception");
+    }
+
+	void PmxModel::Init()
+	{
+		this->version = 0.0f;
+		this->model_name.clear();
+		this->model_english_name.clear();
+		this->model_comment.clear();
+		this->model_english_comment.clear();
+		this->vertex_count = 0;
+		this->vertices = nullptr;
+		this->index_count = 0;
+		this->indices = nullptr;
+		this->texture_count = 0;
+		this->textures = nullptr;
+		this->material_count = 0;
+		this->materials = nullptr;
+		this->bone_count = 0;
+		this->bones = nullptr;
+		this->morph_count = 0;
+		this->morphs = nullptr;
+		this->frame_count = 0;
+		this->frames = nullptr;
+		this->rigid_body_count = 0;
+		this->rigid_bodies = nullptr;
+		this->joint_count = 0;
+		this->joints = nullptr;
+		this->soft_body_count = 0;
+		this->soft_bodies = nullptr;
+	}
+
+	void PmxModel::Read(std::istream *stream)
+	{
+		char magic[4];
+		stream->read((char*) magic, sizeof(char) * 4);
+		if (magic[0] != 0x50 || magic[1] != 0x4d || magic[2] != 0x58 || magic[3] != 0x20)
+		{
+			std::cerr << "invalid magic number." << std::endl;
+      throw DeadlyImportError("MMD: invalid magic number.");
+    }
+		stream->read((char*) &version, sizeof(float));
+		if (version != 2.0f && version != 2.1f)
+		{
+			std::cerr << "this is not ver2.0 or ver2.1 but " << version << "." << std::endl;
+            throw DeadlyImportError("MMD: this is not ver2.0 or ver2.1 but " + to_string(version));
+    }
+		this->setting.Read(stream);
+
+		this->model_name = ReadString(stream, setting.encoding);
+		this->model_english_name = ReadString(stream, setting.encoding);
+		this->model_comment = ReadString(stream, setting.encoding);
+		this->model_english_comment = ReadString(stream, setting.encoding);
+
+		// read vertices
+		stream->read((char*) &vertex_count, sizeof(int));
+		this->vertices = mmd::make_unique<PmxVertex []>(vertex_count);
+		for (int i = 0; i < vertex_count; i++)
+		{
+			vertices[i].Read(stream, &setting);
+		}
+
+		// read indices
+		stream->read((char*) &index_count, sizeof(int));
+		this->indices = mmd::make_unique<int []>(index_count);
+		for (int i = 0; i < index_count; i++)
+		{
+			this->indices[i] = ReadIndex(stream, setting.vertex_index_size);
+		}
+
+		// read texture names
+		stream->read((char*) &texture_count, sizeof(int));
+		this->textures = mmd::make_unique<std::string []>(texture_count);
+		for (int i = 0; i < texture_count; i++)
+		{
+			this->textures[i] = ReadString(stream, setting.encoding);
+		}
+
+		// read materials
+		stream->read((char*) &material_count, sizeof(int));
+		this->materials = mmd::make_unique<PmxMaterial []>(material_count);
+		for (int i = 0; i < material_count; i++)
+		{
+			this->materials[i].Read(stream, &setting);
+		}
+
+		// read bones
+		stream->read((char*) &this->bone_count, sizeof(int));
+		this->bones = mmd::make_unique<PmxBone []>(this->bone_count);
+		for (int i = 0; i < this->bone_count; i++)
+		{
+			this->bones[i].Read(stream, &setting);
+		}
+
+		// read morphs
+		stream->read((char*) &this->morph_count, sizeof(int));
+		this->morphs = mmd::make_unique<PmxMorph []>(this->morph_count);
+		for (int i = 0; i < this->morph_count; i++)
+		{
+			this->morphs[i].Read(stream, &setting);
+		}
+
+		// read display frames
+		stream->read((char*) &this->frame_count, sizeof(int));
+		this->frames = mmd::make_unique<PmxFrame []>(this->frame_count);
+		for (int i = 0; i < this->frame_count; i++)
+		{
+			this->frames[i].Read(stream, &setting);
+		}
+
+		// read rigid bodies
+		stream->read((char*) &this->rigid_body_count, sizeof(int));
+		this->rigid_bodies = mmd::make_unique<PmxRigidBody []>(this->rigid_body_count);
+		for (int i = 0; i < this->rigid_body_count; i++)
+		{
+			this->rigid_bodies[i].Read(stream, &setting);
+		}
+
+		// read joints
+		stream->read((char*) &this->joint_count, sizeof(int));
+		this->joints = mmd::make_unique<PmxJoint []>(this->joint_count);
+		for (int i = 0; i < this->joint_count; i++)
+		{
+			this->joints[i].Read(stream, &setting);
+		}
+	}
+}
diff --git a/thirdparty/assimp/code/MMDPmxParser.h b/thirdparty/assimp/code/MMDPmxParser.h
new file mode 100644
index 0000000000..cf523a1298
--- /dev/null
+++ b/thirdparty/assimp/code/MMDPmxParser.h
@@ -0,0 +1,782 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include <vector>
+#include <string>
+#include <iostream>
+#include <fstream>
+#include <memory>
+#include "MMDCpp14.h"
+
+namespace pmx
+{
+	class PmxSetting
+	{
+	public:
+		PmxSetting()
+			: encoding(0)
+			, uv(0)
+			, vertex_index_size(0)
+			, texture_index_size(0)
+			, material_index_size(0)
+			, bone_index_size(0)
+			, morph_index_size(0)
+			, rigidbody_index_size(0)
+		{}
+
+		uint8_t encoding;
+		uint8_t uv;
+		uint8_t vertex_index_size;
+		uint8_t texture_index_size;
+		uint8_t material_index_size;
+		uint8_t bone_index_size;
+		uint8_t morph_index_size;
+		uint8_t rigidbody_index_size;
+		void Read(std::istream *stream);
+	};
+
+	enum class PmxVertexSkinningType : uint8_t
+	{
+		BDEF1 = 0,
+		BDEF2 = 1,
+		BDEF4 = 2,
+		SDEF = 3,
+		QDEF = 4,
+	};
+
+	class PmxVertexSkinning
+	{
+	public:
+		virtual void Read(std::istream *stream, PmxSetting *setting) = 0;
+		virtual ~PmxVertexSkinning() {}
+	};
+
+	class PmxVertexSkinningBDEF1 : public PmxVertexSkinning
+	{
+	public:
+		PmxVertexSkinningBDEF1()
+			: bone_index(0)
+		{}
+
+		int bone_index;
+		void Read(std::istream *stresam, PmxSetting *setting);
+	};
+
+	class PmxVertexSkinningBDEF2 : public PmxVertexSkinning
+	{
+	public:
+		PmxVertexSkinningBDEF2()
+			: bone_index1(0)
+			, bone_index2(0)
+			, bone_weight(0.0f)
+		{}
+
+		int bone_index1;
+		int bone_index2;
+		float bone_weight;
+		void Read(std::istream *stresam, PmxSetting *setting);
+	};
+
+	class PmxVertexSkinningBDEF4 : public PmxVertexSkinning
+	{
+	public:
+		PmxVertexSkinningBDEF4()
+			: bone_index1(0)
+			, bone_index2(0)
+			, bone_index3(0)
+			, bone_index4(0)
+			, bone_weight1(0.0f)
+			, bone_weight2(0.0f)
+			, bone_weight3(0.0f)
+			, bone_weight4(0.0f)
+		{}
+
+		int bone_index1;
+		int bone_index2;
+		int bone_index3;
+		int bone_index4;
+		float bone_weight1;
+		float bone_weight2;
+		float bone_weight3;
+		float bone_weight4;
+		void Read(std::istream *stresam, PmxSetting *setting);
+	};
+
+	class PmxVertexSkinningSDEF : public PmxVertexSkinning
+	{
+	public:
+		PmxVertexSkinningSDEF()
+			: bone_index1(0)
+			, bone_index2(0)
+			, bone_weight(0.0f)
+		{
+			for (int i = 0; i < 3; ++i) {
+				sdef_c[i] = 0.0f;
+				sdef_r0[i] = 0.0f;
+				sdef_r1[i] = 0.0f;
+			}
+		}
+
+		int bone_index1;
+		int bone_index2;
+		float bone_weight;
+		float sdef_c[3];
+		float sdef_r0[3];
+		float sdef_r1[3];
+		void Read(std::istream *stresam, PmxSetting *setting);
+	};
+
+	class PmxVertexSkinningQDEF : public PmxVertexSkinning
+	{
+	public:
+		PmxVertexSkinningQDEF()
+			: bone_index1(0)
+			, bone_index2(0)
+			, bone_index3(0)
+			, bone_index4(0)
+			, bone_weight1(0.0f)
+			, bone_weight2(0.0f)
+			, bone_weight3(0.0f)
+			, bone_weight4(0.0f)
+		{}
+
+		int bone_index1;
+		int bone_index2;
+		int bone_index3;
+		int bone_index4;
+		float bone_weight1;
+		float bone_weight2;
+		float bone_weight3;
+		float bone_weight4;
+		void Read(std::istream *stresam, PmxSetting *setting);
+	};
+
+	class PmxVertex
+	{
+	public:
+		PmxVertex()
+			: edge(0.0f)
+		{
+			uv[0] = uv[1] = 0.0f;
+			for (int i = 0; i < 3; ++i) {
+				position[i] = 0.0f;
+				normal[i] = 0.0f;
+			}
+			for (int i = 0; i < 4; ++i) {
+				for (int k = 0; k < 4; ++k) {
+					uva[i][k] = 0.0f;
+				}
+			}
+		}
+
+		float position[3];
+		float normal[3];
+		float uv[2];
+		float uva[4][4];
+		PmxVertexSkinningType skinning_type;
+		std::unique_ptr<PmxVertexSkinning> skinning;
+		float edge;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxMaterial
+	{
+	public:
+		PmxMaterial()
+			: specularlity(0.0f)
+			, flag(0)
+			, edge_size(0.0f)
+			, diffuse_texture_index(0)
+			, sphere_texture_index(0)
+			, sphere_op_mode(0)
+			, common_toon_flag(0)
+			, toon_texture_index(0)
+			, index_count(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				specular[i] = 0.0f;
+				ambient[i] = 0.0f;
+				edge_color[i] = 0.0f;
+			}
+			for (int i = 0; i < 4; ++i) {
+				diffuse[i] = 0.0f;
+			}
+		}
+
+		std::string material_name;
+		std::string material_english_name;
+		float diffuse[4];
+		float specular[3];
+		float specularlity;
+		float ambient[3];
+		uint8_t flag;
+		float edge_color[4];
+		float edge_size;
+		int diffuse_texture_index;
+		int sphere_texture_index;
+		uint8_t sphere_op_mode;
+		uint8_t common_toon_flag;
+		int toon_texture_index;
+		std::string memo;
+		int index_count;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxIkLink
+	{
+	public:
+		PmxIkLink()
+			: link_target(0)
+			, angle_lock(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				max_radian[i] = 0.0f;
+				min_radian[i] = 0.0f;
+			}
+		}
+
+		int link_target;
+		uint8_t angle_lock;
+		float max_radian[3];
+		float min_radian[3];
+		void Read(std::istream *stream, PmxSetting *settingn);
+	};
+
+	class PmxBone
+	{
+	public:
+		PmxBone()
+			: parent_index(0)
+			, level(0)
+			, bone_flag(0)
+			, target_index(0)
+			, grant_parent_index(0)
+			, grant_weight(0.0f)
+			, key(0)
+			, ik_target_bone_index(0)
+			, ik_loop(0)
+			, ik_loop_angle_limit(0.0f)
+			, ik_link_count(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				position[i] = 0.0f;
+				offset[i] = 0.0f;
+				lock_axis_orientation[i] = 0.0f;
+				local_axis_x_orientation[i] = 0.0f;
+				local_axis_y_orientation[i] = 0.0f;
+			}
+		}
+
+		std::string bone_name;
+		std::string bone_english_name;
+		float position[3];
+		int parent_index;
+		int level;
+		uint16_t bone_flag;
+		float offset[3];
+		int target_index;
+		int grant_parent_index;
+		float grant_weight;
+		float lock_axis_orientation[3];
+		float local_axis_x_orientation[3];
+		float local_axis_y_orientation[3];
+		int key;
+		int ik_target_bone_index;
+		int ik_loop;
+		float ik_loop_angle_limit;
+		int ik_link_count;
+		std::unique_ptr<PmxIkLink []> ik_links;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	enum class MorphType : uint8_t
+	{
+		Group = 0,
+		Vertex = 1,
+		Bone = 2,
+		UV = 3,
+		AdditionalUV1 = 4,
+		AdditionalUV2 = 5,
+		AdditionalUV3 = 6,
+		AdditionalUV4 = 7,
+		Matrial = 8,
+		Flip = 9,
+		Implus = 10,
+	};
+
+	enum class MorphCategory : uint8_t
+	{
+		ReservedCategory = 0,
+		Eyebrow = 1,
+		Eye = 2,
+		Mouth = 3,
+		Other = 4,
+	};
+
+	class PmxMorphOffset
+	{
+	public:
+		void virtual Read(std::istream *stream, PmxSetting *setting) = 0;
+	};
+
+	class PmxMorphVertexOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphVertexOffset()
+			: vertex_index(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				position_offset[i] = 0.0f;
+			}
+		}
+		int vertex_index;
+		float position_offset[3];
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorphUVOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphUVOffset()
+			: vertex_index(0)
+		{
+			for (int i = 0; i < 4; ++i) {
+				uv_offset[i] = 0.0f;
+			}
+		}
+		int vertex_index;
+		float uv_offset[4];
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorphBoneOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphBoneOffset()
+			: bone_index(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				translation[i] = 0.0f;
+			}
+			for (int i = 0; i < 4; ++i) {
+				rotation[i] = 0.0f;
+			}
+		}
+		int bone_index;
+		float translation[3];
+		float rotation[4];
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorphMaterialOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphMaterialOffset()
+			: specularity(0.0f)
+			, edge_size(0.0f)
+		{
+			for (int i = 0; i < 3; ++i) {
+				specular[i] = 0.0f;
+				ambient[i] = 0.0f;
+			}
+			for (int i = 0; i < 4; ++i) {
+				diffuse[i] = 0.0f;
+				edge_color[i] = 0.0f;
+				texture_argb[i] = 0.0f;
+				sphere_texture_argb[i] = 0.0f;
+				toon_texture_argb[i] = 0.0f;
+			}
+		}
+		int material_index;
+		uint8_t offset_operation;
+		float diffuse[4];
+		float specular[3];
+		float specularity;
+		float ambient[3];
+		float edge_color[4];
+		float edge_size;
+		float texture_argb[4];
+		float sphere_texture_argb[4];
+		float toon_texture_argb[4];
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorphGroupOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphGroupOffset()
+			: morph_index(0)
+			, morph_weight(0.0f)
+		{}
+		int morph_index;
+		float morph_weight;
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorphFlipOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphFlipOffset()
+			: morph_index(0)
+			, morph_value(0.0f)
+		{}
+		int morph_index;
+		float morph_value;
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorphImplusOffset : public PmxMorphOffset
+	{
+	public:
+		PmxMorphImplusOffset()
+			: rigid_body_index(0)
+			, is_local(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				velocity[i] = 0.0f;
+				angular_torque[i] = 0.0f;
+			}
+		}
+		int rigid_body_index;
+		uint8_t is_local;
+		float velocity[3];
+		float angular_torque[3];
+		void Read(std::istream *stream, PmxSetting *setting); //override;
+	};
+
+	class PmxMorph
+	{
+	public:
+		PmxMorph()
+			: offset_count(0)
+		{
+		}
+		std::string morph_name;
+		std::string morph_english_name;
+		MorphCategory category;
+		MorphType morph_type;
+		int offset_count;
+		std::unique_ptr<PmxMorphVertexOffset []> vertex_offsets;
+		std::unique_ptr<PmxMorphUVOffset []> uv_offsets;
+		std::unique_ptr<PmxMorphBoneOffset []> bone_offsets;
+		std::unique_ptr<PmxMorphMaterialOffset []> material_offsets;
+		std::unique_ptr<PmxMorphGroupOffset []> group_offsets;
+		std::unique_ptr<PmxMorphFlipOffset []> flip_offsets;
+		std::unique_ptr<PmxMorphImplusOffset []> implus_offsets;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxFrameElement
+	{
+	public:
+		PmxFrameElement()
+			: element_target(0)
+			, index(0)
+		{
+		}
+		uint8_t element_target;
+		int index;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxFrame
+	{
+	public:
+		PmxFrame()
+			: frame_flag(0)
+			, element_count(0)
+		{
+		}
+		std::string frame_name;
+		std::string frame_english_name;
+		uint8_t frame_flag;
+		int element_count;
+		std::unique_ptr<PmxFrameElement []> elements;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxRigidBody
+	{
+	public:
+		PmxRigidBody()
+			: target_bone(0)
+			, group(0)
+			, mask(0)
+			, shape(0)
+			, mass(0.0f)
+			, move_attenuation(0.0f)
+			, rotation_attenuation(0.0f)
+			, repulsion(0.0f)
+			, friction(0.0f)
+			, physics_calc_type(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				size[i] = 0.0f;
+				position[i] = 0.0f;
+				orientation[i] = 0.0f;
+			}
+		}
+		std::string girid_body_name;
+		std::string girid_body_english_name;
+		int target_bone;
+		uint8_t group;
+		uint16_t mask;
+		uint8_t shape;
+		float size[3];
+		float position[3];
+		float orientation[3];
+		float mass;
+		float move_attenuation;
+		float rotation_attenuation;
+		float repulsion;
+		float friction;
+		uint8_t physics_calc_type;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	enum class PmxJointType : uint8_t
+	{
+		Generic6DofSpring = 0,
+		Generic6Dof = 1,
+		Point2Point = 2,
+		ConeTwist = 3,
+		Slider = 5,
+		Hinge = 6
+	};
+
+	class PmxJointParam
+	{
+	public:
+		PmxJointParam()
+			: rigid_body1(0)
+			, rigid_body2(0)
+		{
+			for (int i = 0; i < 3; ++i) {
+				position[i] = 0.0f;
+				orientaiton[i] = 0.0f;
+				move_limitation_min[i] = 0.0f;
+				move_limitation_max[i] = 0.0f;
+				rotation_limitation_min[i] = 0.0f;
+				rotation_limitation_max[i] = 0.0f;
+				spring_move_coefficient[i] = 0.0f;
+				spring_rotation_coefficient[i] = 0.0f;
+			}
+		}
+		int rigid_body1;
+		int rigid_body2;
+		float position[3];
+		float orientaiton[3];
+		float move_limitation_min[3];
+		float move_limitation_max[3];
+		float rotation_limitation_min[3];
+		float rotation_limitation_max[3];
+		float spring_move_coefficient[3];
+		float spring_rotation_coefficient[3];
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxJoint
+	{
+	public:
+		std::string joint_name;
+		std::string joint_english_name;
+		PmxJointType joint_type;
+		PmxJointParam param;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	enum PmxSoftBodyFlag : uint8_t
+	{
+		BLink = 0x01,
+		Cluster = 0x02,
+		Link = 0x04
+	};
+
+	class PmxAncherRigidBody
+	{
+	public:
+		PmxAncherRigidBody()
+			: related_rigid_body(0)
+			, related_vertex(0)
+			, is_near(false)
+		{}
+		int related_rigid_body;
+		int related_vertex;
+		bool is_near;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxSoftBody
+	{
+	public:
+		PmxSoftBody()
+			: shape(0)
+			, target_material(0)
+			, group(0)
+			, mask(0)
+			, blink_distance(0)
+			, cluster_count(0)
+			, mass(0.0)
+			, collisioni_margin(0.0)
+			, aero_model(0)
+			, VCF(0.0f)
+			, DP(0.0f)
+			, DG(0.0f)
+			, LF(0.0f)
+			, PR(0.0f)
+			, VC(0.0f)
+			, DF(0.0f)
+			, MT(0.0f)
+			, CHR(0.0f)
+			, KHR(0.0f)
+			, SHR(0.0f)
+			, AHR(0.0f)
+			, SRHR_CL(0.0f)
+			, SKHR_CL(0.0f)
+			, SSHR_CL(0.0f)
+			, SR_SPLT_CL(0.0f)
+			, SK_SPLT_CL(0.0f)
+			, SS_SPLT_CL(0.0f)
+			, V_IT(0)
+			, P_IT(0)
+			, D_IT(0)
+			, C_IT(0)
+			, LST(0.0f)
+			, AST(0.0f)
+			, VST(0.0f)
+			, anchor_count(0)
+			, pin_vertex_count(0)
+		{}
+		std::string soft_body_name;
+		std::string soft_body_english_name;
+		uint8_t shape;
+		int target_material;
+		uint8_t group;
+		uint16_t mask;
+		PmxSoftBodyFlag flag;
+		int blink_distance;
+		int cluster_count;
+		float mass;
+		float collisioni_margin;
+		int aero_model;
+		float VCF;
+		float DP;
+		float DG;
+		float LF;
+		float PR;
+		float VC;
+		float DF;
+		float MT;
+		float CHR;
+		float KHR;
+		float SHR;
+		float AHR;
+		float SRHR_CL;
+		float SKHR_CL;
+		float SSHR_CL;
+		float SR_SPLT_CL;
+		float SK_SPLT_CL;
+		float SS_SPLT_CL;
+		int V_IT;
+		int P_IT;
+		int D_IT;
+		int C_IT;
+		float LST;
+		float AST;
+		float VST;
+		int anchor_count;
+		std::unique_ptr<PmxAncherRigidBody []> anchers;
+		int pin_vertex_count;
+		std::unique_ptr<int []> pin_vertices;
+		void Read(std::istream *stream, PmxSetting *setting);
+	};
+
+	class PmxModel
+	{
+	public:
+		PmxModel()
+			: version(0.0f)
+			, vertex_count(0)
+			, index_count(0)
+			, texture_count(0)
+			, material_count(0)
+			, bone_count(0)
+			, morph_count(0)
+			, frame_count(0)
+			, rigid_body_count(0)
+			, joint_count(0)
+			, soft_body_count(0)
+		{}
+
+		float version;
+		PmxSetting setting;
+		std::string model_name;
+		std::string model_english_name;
+		std::string model_comment;
+		std::string model_english_comment;
+		int vertex_count;
+		std::unique_ptr<PmxVertex []> vertices;
+		int index_count;
+		std::unique_ptr<int []> indices;
+		int texture_count;
+		std::unique_ptr< std::string []> textures;
+		int material_count;
+		std::unique_ptr<PmxMaterial []> materials;
+		int bone_count;
+		std::unique_ptr<PmxBone []> bones;
+		int morph_count;
+		std::unique_ptr<PmxMorph []> morphs;
+		int frame_count;
+		std::unique_ptr<PmxFrame [] > frames;
+		int rigid_body_count;
+		std::unique_ptr<PmxRigidBody []> rigid_bodies;
+		int joint_count;
+		std::unique_ptr<PmxJoint []> joints;
+		int soft_body_count;
+		std::unique_ptr<PmxSoftBody []> soft_bodies;
+		void Init();
+		void Read(std::istream *stream);
+		//static std::unique_ptr<PmxModel> ReadFromFile(const char *filename);
+		//static std::unique_ptr<PmxModel> ReadFromStream(std::istream *stream);
+	};
+}
diff --git a/thirdparty/assimp/code/MMDVmdParser.h b/thirdparty/assimp/code/MMDVmdParser.h
new file mode 100644
index 0000000000..947c3a2422
--- /dev/null
+++ b/thirdparty/assimp/code/MMDVmdParser.h
@@ -0,0 +1,376 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include <vector>
+#include <string>
+#include <memory>
+#include <iostream>
+#include <fstream>
+#include <ostream>
+#include "MMDCpp14.h"
+
+namespace vmd
+{
+	class VmdBoneFrame
+	{
+	public:
+		std::string name;
+		int frame;
+		float position[3];
+		float orientation[4];
+		char interpolation[4][4][4];
+
+		void Read(std::istream* stream)
+		{
+			char buffer[15];
+			stream->read((char*) buffer, sizeof(char)*15);
+			name = std::string(buffer);
+			stream->read((char*) &frame, sizeof(int));
+			stream->read((char*) position, sizeof(float)*3);
+			stream->read((char*) orientation, sizeof(float)*4);
+			stream->read((char*) interpolation, sizeof(char) * 4 * 4 * 4);
+		}
+
+		void Write(std::ostream* stream)
+		{
+			stream->write((char*)name.c_str(), sizeof(char) * 15);
+			stream->write((char*)&frame, sizeof(int));
+			stream->write((char*)position, sizeof(float) * 3);
+			stream->write((char*)orientation, sizeof(float) * 4);
+			stream->write((char*)interpolation, sizeof(char) * 4 * 4 * 4);
+		}
+	};
+
+	class VmdFaceFrame
+	{
+	public:
+		std::string face_name;
+		float weight;
+		uint32_t frame;
+
+		void Read(std::istream* stream)
+		{
+			char buffer[15];
+			stream->read((char*) &buffer, sizeof(char) * 15);
+			face_name = std::string(buffer);
+			stream->read((char*) &frame, sizeof(int));
+			stream->read((char*) &weight, sizeof(float));
+		}
+
+		void Write(std::ostream* stream)
+		{
+			stream->write((char*)face_name.c_str(), sizeof(char) * 15);
+			stream->write((char*)&frame, sizeof(int));
+			stream->write((char*)&weight, sizeof(float));
+		}
+	};
+
+	class VmdCameraFrame
+	{
+	public:
+		int frame;
+		float distance;
+		float position[3];
+		float orientation[3];
+		char interpolation[6][4];
+		float angle;
+		char unknown[3];
+
+		void Read(std::istream *stream)
+		{
+			stream->read((char*) &frame, sizeof(int));
+			stream->read((char*) &distance, sizeof(float));
+			stream->read((char*) position, sizeof(float) * 3);
+			stream->read((char*) orientation, sizeof(float) * 3);
+			stream->read((char*) interpolation, sizeof(char) * 24);
+			stream->read((char*) &angle, sizeof(float));
+			stream->read((char*) unknown, sizeof(char) * 3);
+		}
+
+		void Write(std::ostream *stream)
+		{
+			stream->write((char*)&frame, sizeof(int));
+			stream->write((char*)&distance, sizeof(float));
+			stream->write((char*)position, sizeof(float) * 3);
+			stream->write((char*)orientation, sizeof(float) * 3);
+			stream->write((char*)interpolation, sizeof(char) * 24);
+			stream->write((char*)&angle, sizeof(float));
+			stream->write((char*)unknown, sizeof(char) * 3);
+		}
+	};
+
+	class VmdLightFrame
+	{
+	public:
+		int frame;
+		float color[3];
+		float position[3];
+
+		void Read(std::istream* stream)
+		{
+			stream->read((char*) &frame, sizeof(int));
+			stream->read((char*) color, sizeof(float) * 3);
+			stream->read((char*) position, sizeof(float) * 3);
+		}
+
+		void Write(std::ostream* stream)
+		{
+			stream->write((char*)&frame, sizeof(int));
+			stream->write((char*)color, sizeof(float) * 3);
+			stream->write((char*)position, sizeof(float) * 3);
+		}
+	};
+
+	class VmdIkEnable
+	{
+	public:
+		std::string ik_name;
+		bool enable;
+	};
+
+	class VmdIkFrame
+	{
+	public:
+		int frame;
+		bool display;
+		std::vector<VmdIkEnable> ik_enable;
+
+		void Read(std::istream *stream)
+		{
+			char buffer[20];
+			stream->read((char*) &frame, sizeof(int));
+			stream->read((char*) &display, sizeof(uint8_t));
+			int ik_count;
+			stream->read((char*) &ik_count, sizeof(int));
+			ik_enable.resize(ik_count);
+			for (int i = 0; i < ik_count; i++)
+			{
+				stream->read(buffer, 20);
+				ik_enable[i].ik_name = std::string(buffer);
+				stream->read((char*) &ik_enable[i].enable, sizeof(uint8_t));
+			}
+		}
+
+		void Write(std::ostream *stream)
+		{
+			stream->write((char*)&frame, sizeof(int));
+			stream->write((char*)&display, sizeof(uint8_t));
+			int ik_count = static_cast<int>(ik_enable.size());
+			stream->write((char*)&ik_count, sizeof(int));
+			for (int i = 0; i < ik_count; i++)
+			{
+				const VmdIkEnable& ik_enable = this->ik_enable.at(i);
+				stream->write(ik_enable.ik_name.c_str(), 20);
+				stream->write((char*)&ik_enable.enable, sizeof(uint8_t));
+			}
+		}
+	};
+
+	class VmdMotion
+	{
+	public:
+		std::string model_name;
+		int version;
+		std::vector<VmdBoneFrame> bone_frames;
+		std::vector<VmdFaceFrame> face_frames;
+		std::vector<VmdCameraFrame> camera_frames;
+		std::vector<VmdLightFrame> light_frames;
+		std::vector<VmdIkFrame> ik_frames;
+
+		static std::unique_ptr<VmdMotion> LoadFromFile(char const *filename)
+		{
+			std::ifstream stream(filename, std::ios::binary);
+			auto result = LoadFromStream(&stream);
+			stream.close();
+			return result;
+		}
+
+		static std::unique_ptr<VmdMotion> LoadFromStream(std::ifstream *stream)
+		{
+
+			char buffer[30];
+			auto result = mmd::make_unique<VmdMotion>();
+
+			// magic and version
+			stream->read((char*) buffer, 30);
+			if (strncmp(buffer, "Vocaloid Motion Data", 20))
+			{
+				std::cerr << "invalid vmd file." << std::endl;
+				return nullptr;
+			}
+			result->version = std::atoi(buffer + 20);
+
+			// name
+			stream->read(buffer, 20);
+			result->model_name = std::string(buffer);
+
+			// bone frames
+			int bone_frame_num;
+			stream->read((char*) &bone_frame_num, sizeof(int));
+			result->bone_frames.resize(bone_frame_num);
+			for (int i = 0; i < bone_frame_num; i++)
+			{
+				result->bone_frames[i].Read(stream);
+			}
+
+			// face frames
+			int face_frame_num;
+			stream->read((char*) &face_frame_num, sizeof(int));
+			result->face_frames.resize(face_frame_num);
+			for (int i = 0; i < face_frame_num; i++)
+			{
+				result->face_frames[i].Read(stream);
+			}
+
+			// camera frames
+			int camera_frame_num;
+			stream->read((char*) &camera_frame_num, sizeof(int));
+			result->camera_frames.resize(camera_frame_num);
+			for (int i = 0; i < camera_frame_num; i++)
+			{
+				result->camera_frames[i].Read(stream);
+			}
+
+			// light frames
+			int light_frame_num;
+			stream->read((char*) &light_frame_num, sizeof(int));
+			result->light_frames.resize(light_frame_num);
+			for (int i = 0; i < light_frame_num; i++)
+			{
+				result->light_frames[i].Read(stream);
+			}
+
+			// unknown2
+			stream->read(buffer, 4);
+
+			// ik frames
+			if (stream->peek() != std::ios::traits_type::eof())
+			{
+				int ik_num;
+				stream->read((char*) &ik_num, sizeof(int));
+				result->ik_frames.resize(ik_num);
+				for (int i = 0; i < ik_num; i++)
+				{
+					result->ik_frames[i].Read(stream);
+				}
+			}
+
+			if (stream->peek() != std::ios::traits_type::eof())
+			{
+				std::cerr << "vmd stream has unknown data." << std::endl;
+			}
+
+			return result;
+		}
+
+        bool SaveToFile(const std::u16string& /*filename*/)
+		{
+			// TODO: How to adapt u16string to string?
+			/*
+			std::ofstream stream(filename.c_str(), std::ios::binary);
+			auto result = SaveToStream(&stream);
+			stream.close();
+			return result;
+			*/
+			return false;
+		}
+
+		bool SaveToStream(std::ofstream *stream)
+		{
+			std::string magic = "Vocaloid Motion Data 0002\0";
+			magic.resize(30);
+
+			// magic and version
+			stream->write(magic.c_str(), 30);
+
+			// name
+			stream->write(model_name.c_str(), 20);
+
+			// bone frames
+			const int bone_frame_num = static_cast<int>(bone_frames.size());
+			stream->write(reinterpret_cast<const char*>(&bone_frame_num), sizeof(int));
+			for (int i = 0; i < bone_frame_num; i++)
+			{
+				bone_frames[i].Write(stream);
+			}
+
+			// face frames
+			const int face_frame_num = static_cast<int>(face_frames.size());
+			stream->write(reinterpret_cast<const char*>(&face_frame_num), sizeof(int));
+			for (int i = 0; i < face_frame_num; i++)
+			{
+				face_frames[i].Write(stream);
+			}
+
+			// camera frames
+			const int camera_frame_num = static_cast<int>(camera_frames.size());
+			stream->write(reinterpret_cast<const char*>(&camera_frame_num), sizeof(int));
+			for (int i = 0; i < camera_frame_num; i++)
+			{
+				camera_frames[i].Write(stream);
+			}
+
+			// light frames
+			const int light_frame_num = static_cast<int>(light_frames.size());
+			stream->write(reinterpret_cast<const char*>(&light_frame_num), sizeof(int));
+			for (int i = 0; i < light_frame_num; i++)
+			{
+				light_frames[i].Write(stream);
+			}
+
+			// self shadow datas
+			const int self_shadow_num = 0;
+			stream->write(reinterpret_cast<const char*>(&self_shadow_num), sizeof(int));
+
+			// ik frames
+			const int ik_num = static_cast<int>(ik_frames.size());
+			stream->write(reinterpret_cast<const char*>(&ik_num), sizeof(int));
+			for (int i = 0; i < ik_num; i++)
+			{
+				ik_frames[i].Write(stream);
+			}
+
+			return true;
+		}
+	};
+}
diff --git a/thirdparty/assimp/code/MakeVerboseFormat.cpp b/thirdparty/assimp/code/MakeVerboseFormat.cpp
new file mode 100644
index 0000000000..50ff5ed93d
--- /dev/null
+++ b/thirdparty/assimp/code/MakeVerboseFormat.cpp
@@ -0,0 +1,226 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file Implementation of the post processing step "MakeVerboseFormat"
+*/
+
+
+#include "MakeVerboseFormat.h"
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+MakeVerboseFormatProcess::MakeVerboseFormatProcess()
+{
+    // nothing to do here
+}
+// ------------------------------------------------------------------------------------------------
+MakeVerboseFormatProcess::~MakeVerboseFormatProcess()
+{
+    // nothing to do here
+}
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void MakeVerboseFormatProcess::Execute( aiScene* pScene)
+{
+    ai_assert(NULL != pScene);
+    ASSIMP_LOG_DEBUG("MakeVerboseFormatProcess begin");
+
+    bool bHas = false;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++)
+    {
+        if( MakeVerboseFormat( pScene->mMeshes[a]))
+            bHas = true;
+    }
+    if (bHas) {
+        ASSIMP_LOG_INFO("MakeVerboseFormatProcess finished. There was much work to do ...");
+    } else {
+        ASSIMP_LOG_DEBUG("MakeVerboseFormatProcess. There was nothing to do.");
+    }
+
+    pScene->mFlags &= ~AI_SCENE_FLAGS_NON_VERBOSE_FORMAT;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+bool MakeVerboseFormatProcess::MakeVerboseFormat(aiMesh* pcMesh)
+{
+    ai_assert(NULL != pcMesh);
+
+    unsigned int iOldNumVertices = pcMesh->mNumVertices;
+    const unsigned int iNumVerts = pcMesh->mNumFaces*3;
+
+    aiVector3D* pvPositions = new aiVector3D[ iNumVerts ];
+
+    aiVector3D* pvNormals = NULL;
+    if (pcMesh->HasNormals())
+    {
+        pvNormals = new aiVector3D[iNumVerts];
+    }
+    aiVector3D* pvTangents = NULL, *pvBitangents = NULL;
+    if (pcMesh->HasTangentsAndBitangents())
+    {
+        pvTangents = new aiVector3D[iNumVerts];
+        pvBitangents = new aiVector3D[iNumVerts];
+    }
+
+    aiVector3D* apvTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS] = {0};
+    aiColor4D* apvColorSets[AI_MAX_NUMBER_OF_COLOR_SETS] = {0};
+
+    unsigned int p = 0;
+    while (pcMesh->HasTextureCoords(p))
+        apvTextureCoords[p++] = new aiVector3D[iNumVerts];
+
+    p = 0;
+    while (pcMesh->HasVertexColors(p))
+        apvColorSets[p++] = new aiColor4D[iNumVerts];
+
+    // allocate enough memory to hold output bones and vertex weights ...
+    std::vector<aiVertexWeight>* newWeights = new std::vector<aiVertexWeight>[pcMesh->mNumBones];
+    for (unsigned int i = 0;i < pcMesh->mNumBones;++i) {
+        newWeights[i].reserve(pcMesh->mBones[i]->mNumWeights*3);
+    }
+
+    // iterate through all faces and build a clean list
+    unsigned int iIndex = 0;
+    for (unsigned int a = 0; a< pcMesh->mNumFaces;++a)
+    {
+        aiFace* pcFace = &pcMesh->mFaces[a];
+        for (unsigned int q = 0; q < pcFace->mNumIndices;++q,++iIndex)
+        {
+            // need to build a clean list of bones, too
+            for (unsigned int i = 0;i < pcMesh->mNumBones;++i)
+            {
+                for (unsigned int a = 0;  a < pcMesh->mBones[i]->mNumWeights;a++)
+                {
+                    const aiVertexWeight& w = pcMesh->mBones[i]->mWeights[a];
+                    if(pcFace->mIndices[q] == w.mVertexId)
+                    {
+                        aiVertexWeight wNew;
+                        wNew.mVertexId = iIndex;
+                        wNew.mWeight = w.mWeight;
+                        newWeights[i].push_back(wNew);
+                    }
+                }
+            }
+
+            pvPositions[iIndex] = pcMesh->mVertices[pcFace->mIndices[q]];
+
+            if (pcMesh->HasNormals())
+            {
+                pvNormals[iIndex] = pcMesh->mNormals[pcFace->mIndices[q]];
+            }
+            if (pcMesh->HasTangentsAndBitangents())
+            {
+                pvTangents[iIndex] = pcMesh->mTangents[pcFace->mIndices[q]];
+                pvBitangents[iIndex] = pcMesh->mBitangents[pcFace->mIndices[q]];
+            }
+
+            unsigned int p = 0;
+            while (pcMesh->HasTextureCoords(p))
+            {
+                apvTextureCoords[p][iIndex] = pcMesh->mTextureCoords[p][pcFace->mIndices[q]];
+                ++p;
+            }
+            p = 0;
+            while (pcMesh->HasVertexColors(p))
+            {
+                apvColorSets[p][iIndex] = pcMesh->mColors[p][pcFace->mIndices[q]];
+                ++p;
+            }
+            pcFace->mIndices[q] = iIndex;
+        }
+    }
+
+
+
+    // build output vertex weights
+    for (unsigned int i = 0;i < pcMesh->mNumBones;++i)
+    {
+        delete [] pcMesh->mBones[i]->mWeights;
+        if (!newWeights[i].empty()) {
+            pcMesh->mBones[i]->mWeights = new aiVertexWeight[newWeights[i].size()];
+            aiVertexWeight *weightToCopy = &( newWeights[i][0] );
+            memcpy(pcMesh->mBones[i]->mWeights, weightToCopy,
+                sizeof(aiVertexWeight) * newWeights[i].size());
+        } else {
+            pcMesh->mBones[i]->mWeights = NULL;
+        }
+    }
+    delete[] newWeights;
+
+    // delete the old members
+    delete[] pcMesh->mVertices;
+    pcMesh->mVertices = pvPositions;
+
+    p = 0;
+    while (pcMesh->HasTextureCoords(p))
+    {
+        delete[] pcMesh->mTextureCoords[p];
+        pcMesh->mTextureCoords[p] = apvTextureCoords[p];
+        ++p;
+    }
+    p = 0;
+    while (pcMesh->HasVertexColors(p))
+    {
+        delete[] pcMesh->mColors[p];
+        pcMesh->mColors[p] = apvColorSets[p];
+        ++p;
+    }
+    pcMesh->mNumVertices = iNumVerts;
+
+    if (pcMesh->HasNormals())
+    {
+        delete[] pcMesh->mNormals;
+        pcMesh->mNormals = pvNormals;
+    }
+    if (pcMesh->HasTangentsAndBitangents())
+    {
+        delete[] pcMesh->mTangents;
+        pcMesh->mTangents = pvTangents;
+        delete[] pcMesh->mBitangents;
+        pcMesh->mBitangents = pvBitangents;
+    }
+    return (pcMesh->mNumVertices != iOldNumVertices);
+}
diff --git a/thirdparty/assimp/code/MakeVerboseFormat.h b/thirdparty/assimp/code/MakeVerboseFormat.h
new file mode 100644
index 0000000000..d12db63ae1
--- /dev/null
+++ b/thirdparty/assimp/code/MakeVerboseFormat.h
@@ -0,0 +1,105 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to bring a given scene
+ into the verbose format that is expected by most postprocess steps.
+ This is the inverse of the "JoinIdenticalVertices" step. */
+#ifndef AI_MAKEVERBOSEFORMAT_H_INC
+#define AI_MAKEVERBOSEFORMAT_H_INC
+
+#include "BaseProcess.h"
+struct aiMesh;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** MakeVerboseFormatProcess: Class to convert an asset to the verbose
+ *  format which is expected by most postprocess steps.
+ *
+ * This is the inverse of what the "JoinIdenticalVertices" step is doing.
+ * This step has no official flag (since it wouldn't make sense to run it
+ * during import). It is intended for applications intending to modify the
+ * returned aiScene. After this step has been executed, they can execute
+ * other postprocess steps on the data. The code might also be useful to
+ * quickly adapt code that doesn't result in a verbose representation of
+ * the scene data.
+ * The step has been added because it was required by the viewer, however
+ * it has been moved to the main library since others might find it
+ * useful, too. */
+class ASSIMP_API_WINONLY MakeVerboseFormatProcess : public BaseProcess
+{
+public:
+
+
+    MakeVerboseFormatProcess();
+    ~MakeVerboseFormatProcess();
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+    * @param pFlags The processing flags the importer was called with. A bitwise
+    *   combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields, false if not */
+    bool IsActive( unsigned int /*pFlags*/ ) const
+    {
+        // NOTE: There is no direct flag that corresponds to
+        // this postprocess step.
+        return false;
+    }
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at. */
+    void Execute( aiScene* pScene);
+
+
+private:
+
+    //! Apply the postprocess step to a given submesh
+    bool MakeVerboseFormat (aiMesh* pcMesh);
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_KILLNORMALPROCESS_H_INC
diff --git a/thirdparty/assimp/code/MaterialSystem.cpp b/thirdparty/assimp/code/MaterialSystem.cpp
new file mode 100644
index 0000000000..03d5a18a34
--- /dev/null
+++ b/thirdparty/assimp/code/MaterialSystem.cpp
@@ -0,0 +1,647 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  MaterialSystem.cpp
+ *  @brief Implementation of the material system of the library
+ */
+
+#include <assimp/Hash.h>
+#include <assimp/fast_atof.h>
+#include <assimp/ParsingUtils.h>
+#include "MaterialSystem.h"
+#include <assimp/types.h>
+#include <assimp/material.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/Macros.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Get a specific property from a material
+aiReturn aiGetMaterialProperty(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    const aiMaterialProperty** pPropOut)
+{
+    ai_assert( pMat != NULL );
+    ai_assert( pKey != NULL );
+    ai_assert( pPropOut != NULL );
+
+    /*  Just search for a property with exactly this name ..
+     *  could be improved by hashing, but it's possibly
+     *  no worth the effort (we're bound to C structures,
+     *  thus std::map or derivates are not applicable. */
+    for ( unsigned int i = 0; i < pMat->mNumProperties; ++i ) {
+        aiMaterialProperty* prop = pMat->mProperties[i];
+
+        if (prop /* just for safety ... */
+            && 0 == strcmp( prop->mKey.data, pKey )
+            && (UINT_MAX == type  || prop->mSemantic == type) /* UINT_MAX is a wild-card, but this is undocumented :-) */
+            && (UINT_MAX == index || prop->mIndex == index))
+        {
+            *pPropOut = pMat->mProperties[i];
+            return AI_SUCCESS;
+        }
+    }
+    *pPropOut = NULL;
+    return AI_FAILURE;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get an array of floating-point values from the material.
+aiReturn aiGetMaterialFloatArray(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    ai_real* pOut,
+    unsigned int* pMax)
+{
+    ai_assert( pOut != NULL );
+    ai_assert( pMat != NULL );
+
+    const aiMaterialProperty* prop;
+    aiGetMaterialProperty(pMat,pKey,type,index, (const aiMaterialProperty**) &prop);
+    if (!prop) {
+        return AI_FAILURE;
+    }
+
+    // data is given in floats, convert to ai_real
+    unsigned int iWrite = 0;
+    if( aiPTI_Float == prop->mType || aiPTI_Buffer == prop->mType)  {
+        iWrite = prop->mDataLength / sizeof(float);
+        if (pMax) {
+            iWrite = std::min(*pMax,iWrite); ;
+        }
+        for (unsigned int a = 0; a < iWrite;++a)    {
+            pOut[a] = static_cast<ai_real> ( reinterpret_cast<float*>(prop->mData)[a] );
+        }
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    // data is given in doubles, convert to float
+    else if( aiPTI_Double == prop->mType)  {
+        iWrite = prop->mDataLength / sizeof(double);
+        if (pMax) {
+            iWrite = std::min(*pMax,iWrite); ;
+        }
+        for (unsigned int a = 0; a < iWrite;++a)    {
+            pOut[a] = static_cast<ai_real> ( reinterpret_cast<double*>(prop->mData)[a] );
+        }
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    // data is given in ints, convert to float
+    else if( aiPTI_Integer == prop->mType)  {
+        iWrite = prop->mDataLength / sizeof(int32_t);
+        if (pMax) {
+            iWrite = std::min(*pMax,iWrite); ;
+        }
+        for (unsigned int a = 0; a < iWrite;++a)    {
+            pOut[a] = static_cast<ai_real> ( reinterpret_cast<int32_t*>(prop->mData)[a] );
+        }
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    // a string ... read floats separated by spaces
+    else {
+        if (pMax) {
+            iWrite = *pMax;
+        }
+        // strings are zero-terminated with a 32 bit length prefix, so this is safe
+        const char *cur = prop->mData + 4;
+        ai_assert( prop->mDataLength >= 5 );
+        ai_assert( !prop->mData[ prop->mDataLength - 1 ] );
+        for ( unsigned int a = 0; ;++a) {
+            cur = fast_atoreal_move<ai_real>(cur,pOut[a]);
+            if ( a==iWrite-1 ) {
+                break;
+            }
+            if ( !IsSpace(*cur) ) {
+                ASSIMP_LOG_ERROR("Material property" + std::string(pKey) +
+                    " is a string; failed to parse a float array out of it.");
+                return AI_FAILURE;
+            }
+        }
+
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    return AI_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get an array if integers from the material
+aiReturn aiGetMaterialIntegerArray(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    int* pOut,
+    unsigned int* pMax)
+{
+    ai_assert( pOut != NULL );
+    ai_assert( pMat != NULL );
+
+    const aiMaterialProperty* prop;
+    aiGetMaterialProperty(pMat,pKey,type,index,(const aiMaterialProperty**) &prop);
+    if (!prop) {
+        return AI_FAILURE;
+    }
+
+    // data is given in ints, simply copy it
+    unsigned int iWrite = 0;
+    if( aiPTI_Integer == prop->mType || aiPTI_Buffer == prop->mType)    {
+        iWrite = std::max(static_cast<unsigned int>(prop->mDataLength / sizeof(int32_t)), 1u);
+        if (pMax) {
+            iWrite = std::min(*pMax,iWrite);
+        }
+        if (1 == prop->mDataLength) {
+            // bool type, 1 byte
+            *pOut = static_cast<int>(*prop->mData);
+        }
+        else {
+            for (unsigned int a = 0; a < iWrite;++a) {
+                pOut[a] = static_cast<int>(reinterpret_cast<int32_t*>(prop->mData)[a]);
+            }
+        }
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    // data is given in floats convert to int
+    else if( aiPTI_Float == prop->mType)    {
+        iWrite = prop->mDataLength / sizeof(float);
+        if (pMax) {
+            iWrite = std::min(*pMax,iWrite); ;
+        }
+        for (unsigned int a = 0; a < iWrite;++a) {
+            pOut[a] = static_cast<int>(reinterpret_cast<float*>(prop->mData)[a]);
+        }
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    // it is a string ... no way to read something out of this
+    else    {
+        if (pMax) {
+            iWrite = *pMax;
+        }
+        // strings are zero-terminated with a 32 bit length prefix, so this is safe
+        const char *cur =  prop->mData+4;
+        ai_assert( prop->mDataLength >= 5 );
+        ai_assert( !prop->mData[ prop->mDataLength - 1 ] );
+        for (unsigned int a = 0; ;++a) {
+            pOut[a] = strtol10(cur,&cur);
+            if(a==iWrite-1) {
+                break;
+            }
+            if(!IsSpace(*cur)) {
+                ASSIMP_LOG_ERROR("Material property" + std::string(pKey) +
+                    " is a string; failed to parse an integer array out of it.");
+                return AI_FAILURE;
+            }
+        }
+
+        if (pMax) {
+            *pMax = iWrite;
+        }
+    }
+    return AI_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a color (3 or 4 floats) from the material
+aiReturn aiGetMaterialColor(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    aiColor4D* pOut)
+{
+    unsigned int iMax = 4;
+    const aiReturn eRet = aiGetMaterialFloatArray(pMat,pKey,type,index,(ai_real*)pOut,&iMax);
+
+    // if no alpha channel is defined: set it to 1.0
+    if (3 == iMax) {
+        pOut->a = 1.0;
+    }
+
+    return eRet;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a aiUVTransform (4 floats) from the material
+aiReturn aiGetMaterialUVTransform(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    aiUVTransform* pOut)
+{
+    unsigned int iMax = 4;
+    return aiGetMaterialFloatArray(pMat,pKey,type,index,(ai_real*)pOut,&iMax);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a string from the material
+aiReturn aiGetMaterialString(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    aiString* pOut)
+{
+    ai_assert (pOut != NULL);
+
+    const aiMaterialProperty* prop;
+    aiGetMaterialProperty(pMat,pKey,type,index,(const aiMaterialProperty**)&prop);
+    if (!prop) {
+        return AI_FAILURE;
+    }
+
+    if( aiPTI_String == prop->mType) {
+        ai_assert(prop->mDataLength>=5);
+
+        // The string is stored as 32 but length prefix followed by zero-terminated UTF8 data
+        pOut->length = static_cast<unsigned int>(*reinterpret_cast<uint32_t*>(prop->mData));
+
+        ai_assert( pOut->length+1+4==prop->mDataLength );
+        ai_assert( !prop->mData[ prop->mDataLength - 1 ] );
+        memcpy(pOut->data,prop->mData+4,pOut->length+1);
+    }
+    else {
+        // TODO - implement lexical cast as well
+        ASSIMP_LOG_ERROR("Material property" + std::string(pKey) +
+            " was found, but is no string" );
+        return AI_FAILURE;
+    }
+    return AI_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get the number of textures on a particular texture stack
+unsigned int aiGetMaterialTextureCount(const C_STRUCT aiMaterial* pMat,
+    C_ENUM aiTextureType type)
+{
+    ai_assert (pMat != NULL);
+
+    // Textures are always stored with ascending indices (ValidateDS provides a check, so we don't need to do it again)
+    unsigned int max = 0;
+    for (unsigned int i = 0; i < pMat->mNumProperties;++i) {
+        aiMaterialProperty* prop = pMat->mProperties[i];
+
+        if ( prop /* just a sanity check ... */
+            && 0 == strcmp( prop->mKey.data, _AI_MATKEY_TEXTURE_BASE )
+            && prop->mSemantic == type) {
+
+            max = std::max(max,prop->mIndex+1);
+        }
+    }
+    return max;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiReturn aiGetMaterialTexture(const C_STRUCT aiMaterial* mat,
+    aiTextureType type,
+    unsigned int  index,
+    C_STRUCT aiString* path,
+    aiTextureMapping* _mapping  /*= NULL*/,
+    unsigned int* uvindex       /*= NULL*/,
+    ai_real* blend              /*= NULL*/,
+    aiTextureOp* op             /*= NULL*/,
+    aiTextureMapMode* mapmode   /*= NULL*/,
+    unsigned int* flags         /*= NULL*/
+    )
+{
+    ai_assert( NULL != mat );
+    ai_assert( NULL != path );
+
+    // Get the path to the texture
+    if (AI_SUCCESS != aiGetMaterialString(mat,AI_MATKEY_TEXTURE(type,index),path))  {
+        return AI_FAILURE;
+    }
+
+    // Determine mapping type
+    int mapping_ = static_cast<int>(aiTextureMapping_UV);
+    aiGetMaterialInteger(mat,AI_MATKEY_MAPPING(type,index), &mapping_);
+    aiTextureMapping mapping = static_cast<aiTextureMapping>(mapping_);
+    if (_mapping)
+        *_mapping = mapping;
+
+    // Get UV index
+    if (aiTextureMapping_UV == mapping && uvindex)  {
+        aiGetMaterialInteger(mat,AI_MATKEY_UVWSRC(type,index),(int*)uvindex);
+    }
+    // Get blend factor
+    if (blend)  {
+        aiGetMaterialFloat(mat,AI_MATKEY_TEXBLEND(type,index),blend);
+    }
+    // Get texture operation
+    if (op){
+        aiGetMaterialInteger(mat,AI_MATKEY_TEXOP(type,index),(int*)op);
+    }
+    // Get texture mapping modes
+    if (mapmode)    {
+        aiGetMaterialInteger(mat,AI_MATKEY_MAPPINGMODE_U(type,index),(int*)&mapmode[0]);
+        aiGetMaterialInteger(mat,AI_MATKEY_MAPPINGMODE_V(type,index),(int*)&mapmode[1]);
+    }
+    // Get texture flags
+    if (flags){
+        aiGetMaterialInteger(mat,AI_MATKEY_TEXFLAGS(type,index),(int*)flags);
+    }
+
+    return AI_SUCCESS;
+}
+
+
+static const unsigned int DefaultNumAllocated = 5;
+
+// ------------------------------------------------------------------------------------------------
+// Construction. Actually the one and only way to get an aiMaterial instance
+aiMaterial::aiMaterial() 
+: mProperties( nullptr )
+, mNumProperties( 0 )
+, mNumAllocated( DefaultNumAllocated ) {
+    // Allocate 5 entries by default
+    mProperties = new aiMaterialProperty*[ DefaultNumAllocated ];
+}
+
+// ------------------------------------------------------------------------------------------------
+aiMaterial::~aiMaterial()
+{
+    Clear();
+
+    delete[] mProperties;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiString aiMaterial::GetName() {
+    aiString name;
+    Get(AI_MATKEY_NAME, name);
+
+    return name;
+}
+
+// ------------------------------------------------------------------------------------------------
+void aiMaterial::Clear()
+{
+    for ( unsigned int i = 0; i < mNumProperties; ++i )    {
+        // delete this entry
+        delete mProperties[ i ];
+        AI_DEBUG_INVALIDATE_PTR(mProperties[i]);
+    }
+    mNumProperties = 0;
+
+    // The array remains allocated, we just invalidated its contents
+}
+
+// ------------------------------------------------------------------------------------------------
+aiReturn aiMaterial::RemoveProperty ( const char* pKey,unsigned int type, unsigned int index )
+{
+    ai_assert( nullptr != pKey );
+
+    for (unsigned int i = 0; i < mNumProperties;++i) {
+        aiMaterialProperty* prop = mProperties[i];
+
+        if (prop && !strcmp( prop->mKey.data, pKey ) &&
+            prop->mSemantic == type && prop->mIndex == index)
+        {
+            // Delete this entry
+            delete mProperties[i];
+
+            // collapse the array behind --.
+            --mNumProperties;
+            for (unsigned int a = i; a < mNumProperties;++a)    {
+                mProperties[a] = mProperties[a+1];
+            }
+            return AI_SUCCESS;
+        }
+    }
+
+    return AI_FAILURE;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiReturn aiMaterial::AddBinaryProperty (const void* pInput,
+    unsigned int pSizeInBytes,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    aiPropertyTypeInfo pType
+    )
+{
+    ai_assert( pInput != NULL );
+    ai_assert( pKey != NULL );
+    ai_assert( 0 != pSizeInBytes );
+
+    if ( 0 == pSizeInBytes ) {
+
+    }
+
+    // first search the list whether there is already an entry with this key
+    unsigned int iOutIndex( UINT_MAX );
+    for ( unsigned int i = 0; i < mNumProperties; ++i ) {
+        aiMaterialProperty *prop( mProperties[ i ] );
+
+        if (prop /* just for safety */ && !strcmp( prop->mKey.data, pKey ) &&
+            prop->mSemantic == type && prop->mIndex == index){
+
+            delete mProperties[i];
+            iOutIndex = i;
+        }
+    }
+
+    // Allocate a new material property
+    aiMaterialProperty* pcNew = new aiMaterialProperty();
+
+    // .. and fill it
+    pcNew->mType = pType;
+    pcNew->mSemantic = type;
+    pcNew->mIndex = index;
+
+    pcNew->mDataLength = pSizeInBytes;
+    pcNew->mData = new char[pSizeInBytes];
+    memcpy (pcNew->mData,pInput,pSizeInBytes);
+
+    pcNew->mKey.length = ::strlen(pKey);
+    ai_assert ( MAXLEN > pcNew->mKey.length);
+    strcpy( pcNew->mKey.data, pKey );
+
+    if (UINT_MAX != iOutIndex)  {
+        mProperties[iOutIndex] = pcNew;
+        return AI_SUCCESS;
+    }
+
+    // resize the array ... double the storage allocated
+    if (mNumProperties == mNumAllocated)    {
+        const unsigned int iOld = mNumAllocated;
+        mNumAllocated *= 2;
+
+        aiMaterialProperty** ppTemp;
+        try {
+            ppTemp = new aiMaterialProperty*[mNumAllocated];
+        } catch (std::bad_alloc&) {
+            delete pcNew;
+            return AI_OUTOFMEMORY;
+        }
+
+        // just copy all items over; then replace the old array
+        memcpy (ppTemp,mProperties,iOld * sizeof(void*));
+
+        delete[] mProperties;
+        mProperties = ppTemp;
+    }
+    // push back ...
+    mProperties[mNumProperties++] = pcNew;
+
+    return AI_SUCCESS;
+}
+
+// ------------------------------------------------------------------------------------------------
+aiReturn aiMaterial::AddProperty (const aiString* pInput,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    // We don't want to add the whole buffer .. write a 32 bit length
+    // prefix followed by the zero-terminated UTF8 string.
+    // (HACK) I don't want to break the ABI now, but we definitely
+    // ought to change aiString::mLength to uint32_t one day.
+    if (sizeof(size_t) == 8) {
+        aiString copy = *pInput;
+        uint32_t* s = reinterpret_cast<uint32_t*>(&copy.length);
+        s[1] = static_cast<uint32_t>(pInput->length);
+
+        return AddBinaryProperty(s+1,
+            static_cast<unsigned int>(pInput->length+1+4),
+            pKey,
+            type,
+            index,
+            aiPTI_String);
+    }
+    ai_assert(sizeof(size_t)==4);
+    return AddBinaryProperty(pInput,
+        static_cast<unsigned int>(pInput->length+1+4),
+        pKey,
+        type,
+        index,
+        aiPTI_String);
+}
+
+// ------------------------------------------------------------------------------------------------
+uint32_t Assimp::ComputeMaterialHash(const aiMaterial* mat, bool includeMatName /*= false*/)
+{
+    uint32_t hash = 1503; // magic start value, chosen to be my birthday :-)
+    for ( unsigned int i = 0; i < mat->mNumProperties; ++i ) {
+        aiMaterialProperty* prop;
+
+        // Exclude all properties whose first character is '?' from the hash
+        // See doc for aiMaterialProperty.
+        if ((prop = mat->mProperties[i]) && (includeMatName || prop->mKey.data[0] != '?'))  {
+
+            hash = SuperFastHash(prop->mKey.data,(unsigned int)prop->mKey.length,hash);
+            hash = SuperFastHash(prop->mData,prop->mDataLength,hash);
+
+            // Combine the semantic and the index with the hash
+            hash = SuperFastHash((const char*)&prop->mSemantic,sizeof(unsigned int),hash);
+            hash = SuperFastHash((const char*)&prop->mIndex,sizeof(unsigned int),hash);
+        }
+    }
+    return hash;
+}
+
+// ------------------------------------------------------------------------------------------------
+void aiMaterial::CopyPropertyList(aiMaterial* pcDest,
+    const aiMaterial* pcSrc
+    )
+{
+    ai_assert(NULL != pcDest);
+    ai_assert(NULL != pcSrc);
+
+    unsigned int iOldNum = pcDest->mNumProperties;
+    pcDest->mNumAllocated += pcSrc->mNumAllocated;
+    pcDest->mNumProperties += pcSrc->mNumProperties;
+
+    aiMaterialProperty** pcOld = pcDest->mProperties;
+    pcDest->mProperties = new aiMaterialProperty*[pcDest->mNumAllocated];
+
+    if (iOldNum && pcOld)   {
+        for (unsigned int i = 0; i < iOldNum;++i) {
+            pcDest->mProperties[i] = pcOld[i];
+        }
+    }
+
+    if ( pcOld ) {
+        delete[] pcOld;
+    }
+
+    for (unsigned int i = iOldNum; i< pcDest->mNumProperties;++i)   {
+        aiMaterialProperty* propSrc = pcSrc->mProperties[i];
+
+        // search whether we have already a property with this name -> if yes, overwrite it
+        aiMaterialProperty* prop;
+        for ( unsigned int q = 0; q < iOldNum; ++q ) {
+            prop = pcDest->mProperties[q];
+            if (prop /* just for safety */ && prop->mKey == propSrc->mKey && prop->mSemantic == propSrc->mSemantic
+                && prop->mIndex == propSrc->mIndex) {
+                delete prop;
+
+                // collapse the whole array ...
+                memmove(&pcDest->mProperties[q],&pcDest->mProperties[q+1],i-q);
+                i--;
+                pcDest->mNumProperties--;
+            }
+        }
+
+        // Allocate the output property and copy the source property
+        prop = pcDest->mProperties[i] = new aiMaterialProperty();
+        prop->mKey = propSrc->mKey;
+        prop->mDataLength = propSrc->mDataLength;
+        prop->mType = propSrc->mType;
+        prop->mSemantic = propSrc->mSemantic;
+        prop->mIndex = propSrc->mIndex;
+
+        prop->mData = new char[propSrc->mDataLength];
+        memcpy(prop->mData,propSrc->mData,prop->mDataLength);
+    }
+}
diff --git a/thirdparty/assimp/code/MaterialSystem.h b/thirdparty/assimp/code/MaterialSystem.h
new file mode 100644
index 0000000000..67d53578cb
--- /dev/null
+++ b/thirdparty/assimp/code/MaterialSystem.h
@@ -0,0 +1,72 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file MaterialSystem.h
+ *  Now that #MaterialHelper is gone, this file only contains some
+ *  internal material utility functions.
+ */
+#ifndef AI_MATERIALSYSTEM_H_INC
+#define AI_MATERIALSYSTEM_H_INC
+
+#include <stdint.h>
+
+struct aiMaterial;
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------
+/** Computes a hash (hopefully unique) from all material properties
+ *  The hash value reflects the current property state, so if you add any
+ *  property and call this method again, the resulting hash value will be
+ *  different. The hash is not persistent across different builds and platforms.
+ *
+ *  @param  includeMatName Set to 'true' to take all properties with
+ *    '?' as initial character in their name into account.
+ *    Currently #AI_MATKEY_NAME is the only example.
+ *  @return 32 Bit jash value for the material
+ */
+uint32_t ComputeMaterialHash(const aiMaterial* mat, bool includeMatName = false);
+
+
+} // ! namespace Assimp
+
+#endif //!! AI_MATERIALSYSTEM_H_INC
diff --git a/thirdparty/assimp/code/OptimizeGraph.cpp b/thirdparty/assimp/code/OptimizeGraph.cpp
new file mode 100644
index 0000000000..add9ab79e1
--- /dev/null
+++ b/thirdparty/assimp/code/OptimizeGraph.cpp
@@ -0,0 +1,353 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  OptimizeGraph.cpp
+ *  @brief Implementation of the aiProcess_OptimizGraph step
+ */
+
+
+#ifndef ASSIMP_BUILD_NO_OPTIMIZEGRAPH_PROCESS
+
+#include "OptimizeGraph.h"
+#include "ProcessHelper.h"
+#include <assimp/SceneCombiner.h>
+#include <assimp/Exceptional.h>
+#include <stdio.h>
+
+using namespace Assimp;
+
+#define AI_RESERVED_NODE_NAME "$Reserved_And_Evil"
+
+/* AI_OG_USE_HASHING enables the use of hashing to speed-up std::set lookups.
+ * The unhashed variant should be faster, except for *very* large data sets
+ */
+#ifdef AI_OG_USE_HASHING
+    // Use our standard hashing function to compute the hash
+#   define AI_OG_GETKEY(str) SuperFastHash(str.data,str.length)
+#else
+    // Otherwise hope that std::string will utilize a static buffer
+    // for shorter node names. This would avoid endless heap copying.
+#   define AI_OG_GETKEY(str) std::string(str.data)
+#endif
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+OptimizeGraphProcess::OptimizeGraphProcess()
+: mScene()
+, nodes_in()
+, nodes_out()
+, count_merged() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+OptimizeGraphProcess::~OptimizeGraphProcess() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool OptimizeGraphProcess::IsActive( unsigned int pFlags) const {
+    return (0 != (pFlags & aiProcess_OptimizeGraph));
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup properties for the post-processing step
+void OptimizeGraphProcess::SetupProperties(const Importer* pImp) {
+    // Get value of AI_CONFIG_PP_OG_EXCLUDE_LIST
+    std::string tmp = pImp->GetPropertyString(AI_CONFIG_PP_OG_EXCLUDE_LIST,"");
+    AddLockedNodeList(tmp);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Collect new children
+void OptimizeGraphProcess::CollectNewChildren(aiNode* nd, std::list<aiNode*>& nodes) {
+    nodes_in += nd->mNumChildren;
+
+    // Process children
+    std::list<aiNode*> child_nodes;
+    for (unsigned int i = 0; i < nd->mNumChildren; ++i) {
+        CollectNewChildren(nd->mChildren[i],child_nodes);
+        nd->mChildren[i] = nullptr;
+    }
+
+    // Check whether we need this node; if not we can replace it by our own children (warn, danger of incest).
+    if (locked.find(AI_OG_GETKEY(nd->mName)) == locked.end() ) {
+        for (std::list<aiNode*>::iterator it = child_nodes.begin(); it != child_nodes.end();) {
+
+            if (locked.find(AI_OG_GETKEY((*it)->mName)) == locked.end()) {
+                (*it)->mTransformation = nd->mTransformation * (*it)->mTransformation;
+                nodes.push_back(*it);
+
+                it = child_nodes.erase(it);
+                continue;
+            }
+            ++it;
+        }
+
+        if (nd->mNumMeshes || !child_nodes.empty()) {
+            nodes.push_back(nd);
+        } else {
+            delete nd; /* bye, node */
+            return;
+        }
+    } else {
+
+        // Retain our current position in the hierarchy
+        nodes.push_back(nd);
+
+        // Now check for possible optimizations in our list of child nodes. join as many as possible
+        aiNode* join_master = NULL;
+        aiMatrix4x4 inv;
+
+        const LockedSetType::const_iterator end = locked.end();
+
+        std::list<aiNode*> join;
+        for (std::list<aiNode*>::iterator it = child_nodes.begin(); it != child_nodes.end();)   {
+            aiNode* child = *it;
+            if (child->mNumChildren == 0 && locked.find(AI_OG_GETKEY(child->mName)) == end) {
+
+                // There may be no instanced meshes
+                unsigned int n = 0;
+                for (; n < child->mNumMeshes;++n) {
+                    if (meshes[child->mMeshes[n]] > 1) {
+                        break;
+                    }
+                }
+                if (n == child->mNumMeshes) {
+                    if (!join_master) {
+                        join_master = child;
+                        inv = join_master->mTransformation;
+                        inv.Inverse();
+                    } else {
+                        child->mTransformation = inv * child->mTransformation ;
+
+                        join.push_back(child);
+                        it = child_nodes.erase(it);
+                        continue;
+                    }
+                }
+            }
+            ++it;
+        }
+        if (join_master && !join.empty()) {
+            join_master->mName.length = ::ai_snprintf(join_master->mName.data, MAXLEN, "$MergedNode_%i",count_merged++);
+
+            unsigned int out_meshes = 0;
+            for (std::list<aiNode*>::iterator it = join.begin(); it != join.end(); ++it) {
+                out_meshes += (*it)->mNumMeshes;
+            }
+
+            // copy all mesh references in one array
+            if (out_meshes) {
+                unsigned int* meshes = new unsigned int[out_meshes+join_master->mNumMeshes], *tmp = meshes;
+                for (unsigned int n = 0; n < join_master->mNumMeshes;++n) {
+                    *tmp++ = join_master->mMeshes[n];
+                }
+
+                for (std::list<aiNode*>::iterator it = join.begin(); it != join.end(); ++it) {
+                    for (unsigned int n = 0; n < (*it)->mNumMeshes; ++n) {
+
+                        *tmp = (*it)->mMeshes[n];
+                        aiMesh* mesh = mScene->mMeshes[*tmp++];
+
+                        // manually move the mesh into the right coordinate system
+                        const aiMatrix3x3 IT = aiMatrix3x3( (*it)->mTransformation ).Inverse().Transpose();
+                        for (unsigned int a = 0; a < mesh->mNumVertices; ++a) {
+
+                            mesh->mVertices[a] *= (*it)->mTransformation;
+
+                            if (mesh->HasNormals())
+                                mesh->mNormals[a] *= IT;
+
+                            if (mesh->HasTangentsAndBitangents()) {
+                                mesh->mTangents[a] *= IT;
+                                mesh->mBitangents[a] *= IT;
+                            }
+                        }
+                    }
+                    delete *it; // bye, node
+                }
+                delete[] join_master->mMeshes;
+                join_master->mMeshes = meshes;
+                join_master->mNumMeshes += out_meshes;
+            }
+        }
+    }
+    // reassign children if something changed
+    if (child_nodes.empty() || child_nodes.size() > nd->mNumChildren) {
+
+        delete[] nd->mChildren;
+
+        if (!child_nodes.empty()) {
+            nd->mChildren = new aiNode*[child_nodes.size()];
+        }
+        else nd->mChildren = nullptr;
+    }
+
+    nd->mNumChildren = static_cast<unsigned int>(child_nodes.size());
+
+    if (nd->mChildren) {
+        aiNode** tmp = nd->mChildren;
+        for (std::list<aiNode*>::iterator it = child_nodes.begin(); it != child_nodes.end(); ++it) {
+            aiNode* node = *tmp++ = *it;
+            node->mParent = nd;
+        }
+    }
+
+    nodes_out += static_cast<unsigned int>(child_nodes.size());
+}
+
+// ------------------------------------------------------------------------------------------------
+// Execute the post-processing step on the given scene
+void OptimizeGraphProcess::Execute( aiScene* pScene) {
+    ASSIMP_LOG_DEBUG("OptimizeGraphProcess begin");
+    nodes_in = nodes_out = count_merged = 0;
+    mScene = pScene;
+
+    meshes.resize(pScene->mNumMeshes,0);
+    FindInstancedMeshes(pScene->mRootNode);
+
+    // build a blacklist of identifiers. If the name of a node matches one of these, we won't touch it
+    locked.clear();
+    for (std::list<std::string>::const_iterator it = locked_nodes.begin(); it != locked_nodes.end(); ++it) {
+#ifdef AI_OG_USE_HASHING
+        locked.insert(SuperFastHash((*it).c_str()));
+#else
+        locked.insert(*it);
+#endif
+    }
+
+    for (unsigned int i = 0; i < pScene->mNumAnimations; ++i) {
+        for (unsigned int a = 0; a < pScene->mAnimations[i]->mNumChannels; ++a) {
+            aiNodeAnim* anim = pScene->mAnimations[i]->mChannels[a];
+            locked.insert(AI_OG_GETKEY(anim->mNodeName));
+        }
+    }
+
+    for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        for (unsigned int a = 0; a < pScene->mMeshes[i]->mNumBones; ++a) {
+
+            aiBone* bone = pScene->mMeshes[i]->mBones[a];
+            locked.insert(AI_OG_GETKEY(bone->mName));
+
+            // HACK: Meshes referencing bones may not be transformed; we need to look them.
+            // The easiest way to do this is to increase their reference counters ...
+            meshes[i] += 2;
+        }
+    }
+
+    for (unsigned int i = 0; i < pScene->mNumCameras; ++i) {
+        aiCamera* cam = pScene->mCameras[i];
+        locked.insert(AI_OG_GETKEY(cam->mName));
+    }
+
+    for (unsigned int i = 0; i < pScene->mNumLights; ++i) {
+        aiLight* lgh = pScene->mLights[i];
+        locked.insert(AI_OG_GETKEY(lgh->mName));
+    }
+
+    // Insert a dummy master node and make it read-only
+    aiNode* dummy_root = new aiNode(AI_RESERVED_NODE_NAME);
+    locked.insert(AI_OG_GETKEY(dummy_root->mName));
+
+    const aiString prev = pScene->mRootNode->mName;
+    pScene->mRootNode->mParent = dummy_root;
+
+    dummy_root->mChildren = new aiNode*[dummy_root->mNumChildren = 1];
+    dummy_root->mChildren[0] = pScene->mRootNode;
+
+    // Do our recursive processing of scenegraph nodes. For each node collect
+    // a fully new list of children and allow their children to place themselves
+    // on the same hierarchy layer as their parents.
+    std::list<aiNode*> nodes;
+    CollectNewChildren (dummy_root,nodes);
+
+    ai_assert(nodes.size() == 1);
+
+    if (dummy_root->mNumChildren == 0) {
+        pScene->mRootNode = NULL;
+        throw DeadlyImportError("After optimizing the scene graph, no data remains");
+    }
+
+    if (dummy_root->mNumChildren > 1) {
+        pScene->mRootNode = dummy_root;
+
+        // Keep the dummy node but assign the name of the old root node to it
+        pScene->mRootNode->mName = prev;
+    }
+    else {
+
+        // Remove the dummy root node again.
+        pScene->mRootNode = dummy_root->mChildren[0];
+
+        dummy_root->mChildren[0] = NULL;
+        delete dummy_root;
+    }
+
+    pScene->mRootNode->mParent = NULL;
+    if (!DefaultLogger::isNullLogger()) {
+        if ( nodes_in != nodes_out) {
+            ASSIMP_LOG_INFO_F("OptimizeGraphProcess finished; Input nodes: ", nodes_in, ", Output nodes: ", nodes_out);
+        } else {
+            ASSIMP_LOG_DEBUG("OptimizeGraphProcess finished");
+        }
+    }
+    meshes.clear();
+    locked.clear();
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a LUT of all instanced meshes
+void OptimizeGraphProcess::FindInstancedMeshes (aiNode* pNode)
+{
+    for (unsigned int i = 0; i < pNode->mNumMeshes;++i) {
+        ++meshes[pNode->mMeshes[i]];
+    }
+
+    for (unsigned int i = 0; i < pNode->mNumChildren; ++i)
+        FindInstancedMeshes(pNode->mChildren[i]);
+}
+
+#endif // !! ASSIMP_BUILD_NO_OPTIMIZEGRAPH_PROCESS
diff --git a/thirdparty/assimp/code/OptimizeGraph.h b/thirdparty/assimp/code/OptimizeGraph.h
new file mode 100644
index 0000000000..e5bbed7679
--- /dev/null
+++ b/thirdparty/assimp/code/OptimizeGraph.h
@@ -0,0 +1,145 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  OptimizeGraph.h
+ *  @brief Declares a post processing step to optimize the scenegraph
+ */
+#ifndef AI_OPTIMIZEGRAPHPROCESS_H_INC
+#define AI_OPTIMIZEGRAPHPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include "ProcessHelper.h"
+#include <assimp/types.h>
+#include <set>
+
+struct aiMesh;
+class OptimizeGraphProcessTest;
+namespace Assimp    {
+
+// -----------------------------------------------------------------------------
+/** @brief Postprocessing step to optimize the scenegraph
+ *
+ *  The implementation tries to merge nodes, even if they use different
+ *  transformations. Animations are preserved.
+ *
+ *  @see aiProcess_OptimizeGraph for a detailed description of the
+ *  algorithm being applied.
+ */
+class OptimizeGraphProcess : public BaseProcess
+{
+public:
+
+    OptimizeGraphProcess();
+    ~OptimizeGraphProcess();
+
+public:
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    void SetupProperties(const Importer* pImp);
+
+
+    // -------------------------------------------------------------------
+    /** @brief Add a list of node names to be locked and not modified.
+     *  @param in List of nodes. See #AI_CONFIG_PP_OG_EXCLUDE_LIST for
+     *    format explanations.
+     */
+    inline void AddLockedNodeList(std::string& in)
+    {
+        ConvertListToStrings (in,locked_nodes);
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Add another node to be locked and not modified.
+     *  @param name Name to be locked
+     */
+    inline void AddLockedNode(std::string& name)
+    {
+        locked_nodes.push_back(name);
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Remove a node from the list of locked nodes.
+     *  @param name Name to be unlocked
+     */
+    inline void RemoveLockedNode(std::string& name)
+    {
+        locked_nodes.remove(name);
+    }
+
+protected:
+
+    void CollectNewChildren(aiNode* nd, std::list<aiNode*>& nodes);
+    void FindInstancedMeshes (aiNode* pNode);
+
+private:
+
+#ifdef AI_OG_USE_HASHING
+    typedef std::set<unsigned int> LockedSetType;
+#else
+    typedef std::set<std::string> LockedSetType;
+#endif
+
+
+    //! Scene we're working with
+    aiScene* mScene;
+
+    //! List of locked names. Stored is the hash of the name
+    LockedSetType locked;
+
+    //! List of nodes to be locked in addition to those with animations, lights or cameras assigned.
+    std::list<std::string> locked_nodes;
+
+    //! Node counters for logging purposes
+    unsigned int nodes_in,nodes_out, count_merged;
+
+    //! Reference counters for meshes
+    std::vector<unsigned int> meshes;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_OPTIMIZEGRAPHPROCESS_H_INC
diff --git a/thirdparty/assimp/code/OptimizeMeshes.cpp b/thirdparty/assimp/code/OptimizeMeshes.cpp
new file mode 100644
index 0000000000..3f6765f6ca
--- /dev/null
+++ b/thirdparty/assimp/code/OptimizeMeshes.cpp
@@ -0,0 +1,256 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  OptimizeMeshes.cpp
+ *  @brief Implementation of the aiProcess_OptimizeMeshes step
+ */
+
+
+#ifndef ASSIMP_BUILD_NO_OPTIMIZEMESHES_PROCESS
+
+
+#include "OptimizeMeshes.h"
+#include "ProcessHelper.h"
+#include <assimp/SceneCombiner.h>
+#include <assimp/Exceptional.h>
+
+using namespace Assimp;
+
+static const unsigned int NotSet   = 0xffffffff;
+static const unsigned int DeadBeef = 0xdeadbeef;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+OptimizeMeshesProcess::OptimizeMeshesProcess()
+    : mScene()
+    , pts(false)
+    , max_verts( NotSet )
+    , max_faces( NotSet ) {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+OptimizeMeshesProcess::~OptimizeMeshesProcess() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool OptimizeMeshesProcess::IsActive( unsigned int pFlags) const
+{
+    // Our behaviour needs to be different if the SortByPType or SplitLargeMeshes
+    // steps are active. Thus we need to query their flags here and store the
+    // information, although we're breaking const-correctness.
+    // That's a serious design flaw, consider redesign.
+    if( 0 != (pFlags & aiProcess_OptimizeMeshes) ) {
+        pts = (0 != (pFlags & aiProcess_SortByPType));
+        max_verts = ( 0 != ( pFlags & aiProcess_SplitLargeMeshes ) ) ? DeadBeef : max_verts;
+        return true;
+    }
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup properties for the post-processing step
+void OptimizeMeshesProcess::SetupProperties(const Importer* pImp)
+{
+    if( max_verts == DeadBeef /* magic hack */ ) {
+        max_faces = pImp->GetPropertyInteger(AI_CONFIG_PP_SLM_TRIANGLE_LIMIT,AI_SLM_DEFAULT_MAX_TRIANGLES);
+        max_verts = pImp->GetPropertyInteger(AI_CONFIG_PP_SLM_VERTEX_LIMIT,AI_SLM_DEFAULT_MAX_VERTICES);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Execute step
+void OptimizeMeshesProcess::Execute( aiScene* pScene)
+{
+    const unsigned int num_old = pScene->mNumMeshes;
+    if (num_old <= 1) {
+        ASSIMP_LOG_DEBUG("Skipping OptimizeMeshesProcess");
+        return;
+    }
+
+    ASSIMP_LOG_DEBUG("OptimizeMeshesProcess begin");
+    mScene = pScene;
+
+    // need to clear persistent members from previous runs
+    merge_list.resize( 0 );
+    output.resize( 0 );
+
+    // ensure we have the right sizes
+    merge_list.reserve(pScene->mNumMeshes);
+    output.reserve(pScene->mNumMeshes);
+
+    // Prepare lookup tables
+    meshes.resize(pScene->mNumMeshes);
+    FindInstancedMeshes(pScene->mRootNode);
+    if( max_verts == DeadBeef ) /* undo the magic hack */
+        max_verts = NotSet;
+
+    // ... instanced meshes are immediately processed and added to the output list
+    for (unsigned int i = 0, n = 0; i < pScene->mNumMeshes;++i) {
+        meshes[i].vertex_format = GetMeshVFormatUnique(pScene->mMeshes[i]);
+
+        if (meshes[i].instance_cnt > 1 && meshes[i].output_id == NotSet ) {
+            meshes[i].output_id = n++;
+            output.push_back(mScene->mMeshes[i]);
+        }
+    }
+
+    // and process all nodes in the scenegraph recursively
+    ProcessNode(pScene->mRootNode);
+    if (!output.size()) {
+        throw DeadlyImportError("OptimizeMeshes: No meshes remaining; there's definitely something wrong");
+    }
+
+    meshes.resize( 0 );
+    ai_assert(output.size() <= num_old);
+
+    mScene->mNumMeshes = static_cast<unsigned int>(output.size());
+    std::copy(output.begin(),output.end(),mScene->mMeshes);
+
+    if (output.size() != num_old) {
+        ASSIMP_LOG_DEBUG_F("OptimizeMeshesProcess finished. Input meshes: ", num_old, ", Output meshes: ", pScene->mNumMeshes);
+    } else {
+        ASSIMP_LOG_DEBUG( "OptimizeMeshesProcess finished" );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Process meshes for a single node
+void OptimizeMeshesProcess::ProcessNode( aiNode* pNode)
+{
+    for (unsigned int i = 0; i < pNode->mNumMeshes;++i) {
+        unsigned int& im = pNode->mMeshes[i];
+
+        if (meshes[im].instance_cnt > 1) {
+            im = meshes[im].output_id;
+        }
+        else  {
+            merge_list.resize( 0 );
+            unsigned int verts = 0, faces = 0;
+
+            // Find meshes to merge with us
+            for (unsigned int a = i+1; a < pNode->mNumMeshes;++a) {
+                unsigned int am = pNode->mMeshes[a];
+                if (meshes[am].instance_cnt == 1 && CanJoin(im,am,verts,faces)) {
+
+                    merge_list.push_back(mScene->mMeshes[am]);
+                    verts += mScene->mMeshes[am]->mNumVertices;
+                    faces += mScene->mMeshes[am]->mNumFaces;
+
+                    pNode->mMeshes[a] = pNode->mMeshes[pNode->mNumMeshes - 1];
+                    --pNode->mNumMeshes;
+                    --a;
+                }
+            }
+
+            // and merge all meshes which we found, replace the old ones
+            if (!merge_list.empty()) {
+                merge_list.push_back(mScene->mMeshes[im]);
+
+                aiMesh* out;
+                SceneCombiner::MergeMeshes(&out,0,merge_list.begin(),merge_list.end());
+                output.push_back(out);
+            } else {
+                output.push_back(mScene->mMeshes[im]);
+            }
+            im = static_cast<unsigned int>(output.size()-1);
+        }
+    }
+
+
+    for( unsigned int i = 0; i < pNode->mNumChildren; ++i ) {
+        ProcessNode( pNode->mChildren[ i ] );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Check whether two meshes can be joined
+bool OptimizeMeshesProcess::CanJoin ( unsigned int a, unsigned int b, unsigned int verts, unsigned int faces )
+{
+    if (meshes[a].vertex_format != meshes[b].vertex_format)
+        return false;
+
+    aiMesh* ma = mScene->mMeshes[a], *mb = mScene->mMeshes[b];
+
+    if ((NotSet != max_verts && verts+mb->mNumVertices > max_verts) ||
+        (NotSet != max_faces && faces+mb->mNumFaces    > max_faces)) {
+        return false;
+    }
+
+    // Never merge unskinned meshes with skinned meshes
+    if (ma->mMaterialIndex != mb->mMaterialIndex || ma->HasBones() != mb->HasBones())
+        return false;
+
+    // Never merge meshes with different kinds of primitives if SortByPType did already
+    // do its work. We would destroy everything again ...
+    if (pts && ma->mPrimitiveTypes != mb->mPrimitiveTypes)
+        return false;
+
+    // If both meshes are skinned, check whether we have many bones defined in both meshes.
+    // If yes, we can join them.
+    if (ma->HasBones()) {
+        // TODO
+        return false;
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a LUT of all instanced meshes
+void OptimizeMeshesProcess::FindInstancedMeshes (aiNode* pNode)
+{
+    for( unsigned int i = 0; i < pNode->mNumMeshes; ++i ) {
+        ++meshes[ pNode->mMeshes[ i ] ].instance_cnt;
+    }
+
+    for( unsigned int i = 0; i < pNode->mNumChildren; ++i ) {
+        FindInstancedMeshes( pNode->mChildren[ i ] );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+
+#endif // !! ASSIMP_BUILD_NO_OPTIMIZEMESHES_PROCESS
diff --git a/thirdparty/assimp/code/OptimizeMeshes.h b/thirdparty/assimp/code/OptimizeMeshes.h
new file mode 100644
index 0000000000..9f46f349b4
--- /dev/null
+++ b/thirdparty/assimp/code/OptimizeMeshes.h
@@ -0,0 +1,186 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  OptimizeMeshes.h
+ *  @brief Declares a post processing step to join meshes, if possible
+ */
+#ifndef AI_OPTIMIZEMESHESPROCESS_H_INC
+#define AI_OPTIMIZEMESHESPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/types.h>
+#include <vector>
+
+struct aiMesh;
+struct aiNode;
+class OptimizeMeshesProcessTest;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** @brief Postprocessing step to optimize mesh usage
+ *
+ *  The implementation looks for meshes that could be joined and joins them.
+ *  Usually this will reduce the number of drawcalls.
+ *
+ *  @note Instanced meshes are currently not processed.
+ */
+class OptimizeMeshesProcess : public BaseProcess
+{
+public:
+    /// @brief  The class constructor.
+    OptimizeMeshesProcess();
+
+    /// @brief  The class destcructor,
+    ~OptimizeMeshesProcess();
+
+
+    /** @brief Internal utility to store additional mesh info
+     */
+    struct MeshInfo {
+        MeshInfo() AI_NO_EXCEPT
+        : instance_cnt(0)
+        , vertex_format(0)
+        , output_id(0xffffffff) {
+            // empty
+        }
+
+        //! Number of times this mesh is referenced
+        unsigned int instance_cnt;
+
+        //! Vertex format id
+        unsigned int vertex_format;
+
+        //! Output ID
+        unsigned int output_id;
+    };
+
+public:
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    void SetupProperties(const Importer* pImp);
+
+
+    // -------------------------------------------------------------------
+    /** @brief Specify whether you want meshes with different
+     *   primitive types to be merged as well.
+     *
+     *  IsActive() sets this property automatically to true if the
+     *  aiProcess_SortByPType flag is found.
+     */
+    void EnablePrimitiveTypeSorting(bool enable) {
+        pts = enable;
+    }
+
+    // Getter
+    bool IsPrimitiveTypeSortingEnabled () const {
+        return pts;
+    }
+
+
+    // -------------------------------------------------------------------
+    /** @brief Specify a maximum size of a single output mesh.
+     *
+     *  If a single input mesh already exceeds this limit, it won't
+     *  be split.
+     *  @param verts Maximum number of vertices per mesh
+     *  @param faces Maximum number of faces per mesh
+     */
+    void SetPreferredMeshSizeLimit (unsigned int verts, unsigned int faces)
+    {
+        max_verts = verts;
+        max_faces = faces;
+    }
+
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** @brief Do the actual optimization on all meshes of this node
+     *  @param pNode Node we're working with
+     */
+    void ProcessNode( aiNode* pNode);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns true if b can be joined with a
+     *
+     *  @param verts Number of output verts up to now
+     *  @param faces Number of output faces up to now
+     */
+    bool CanJoin ( unsigned int a, unsigned int b,
+        unsigned int verts, unsigned int faces );
+
+    // -------------------------------------------------------------------
+    /** @brief Find instanced meshes, for the moment we're excluding
+     *   them from all optimizations
+     */
+    void FindInstancedMeshes (aiNode* pNode);
+
+private:
+
+    //! Scene we're working with
+    aiScene* mScene;
+
+    //! Per mesh info
+    std::vector<MeshInfo> meshes;
+
+    //! Output meshes
+    std::vector<aiMesh*> output;
+
+    //! @see EnablePrimitiveTypeSorting
+    mutable bool pts;
+
+    //! @see SetPreferredMeshSizeLimit
+    mutable unsigned int max_verts,max_faces;
+
+    //! Temporary storage
+    std::vector<aiMesh*> merge_list;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_CALCTANGENTSPROCESS_H_INC
diff --git a/thirdparty/assimp/code/PolyTools.h b/thirdparty/assimp/code/PolyTools.h
new file mode 100644
index 0000000000..fbbda0e7d1
--- /dev/null
+++ b/thirdparty/assimp/code/PolyTools.h
@@ -0,0 +1,229 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file PolyTools.h, various utilities for our dealings with arbitrary polygons */
+
+#ifndef AI_POLYTOOLS_H_INCLUDED
+#define AI_POLYTOOLS_H_INCLUDED
+
+#include <assimp/material.h>
+#include <assimp/ai_assert.h>
+
+namespace Assimp {
+
+// -------------------------------------------------------------------------------
+/** Compute the signed area of a triangle.
+ *  The function accepts an unconstrained template parameter for use with
+ *  both aiVector3D and aiVector2D, but generally ignores the third coordinate.*/
+template <typename T>
+inline double GetArea2D(const T& v1, const T& v2, const T& v3)
+{
+    return 0.5 * (v1.x * ((double)v3.y - v2.y) + v2.x * ((double)v1.y - v3.y) + v3.x * ((double)v2.y - v1.y));
+}
+
+// -------------------------------------------------------------------------------
+/** Test if a given point p2 is on the left side of the line formed by p0-p1.
+ *  The function accepts an unconstrained template parameter for use with
+ *  both aiVector3D and aiVector2D, but generally ignores the third coordinate.*/
+template <typename T>
+inline bool OnLeftSideOfLine2D(const T& p0, const T& p1,const T& p2)
+{
+    return GetArea2D(p0,p2,p1) > 0;
+}
+
+// -------------------------------------------------------------------------------
+/** Test if a given point is inside a given triangle in R2.
+ * The function accepts an unconstrained template parameter for use with
+ *  both aiVector3D and aiVector2D, but generally ignores the third coordinate.*/
+template <typename T>
+inline bool PointInTriangle2D(const T& p0, const T& p1,const T& p2, const T& pp)
+{
+    // Point in triangle test using baryzentric coordinates
+    const aiVector2D v0 = p1 - p0;
+    const aiVector2D v1 = p2 - p0;
+    const aiVector2D v2 = pp - p0;
+
+    double dot00 = v0 * v0;
+    double dot01 = v0 * v1;
+    double dot02 = v0 * v2;
+    double dot11 = v1 * v1;
+    double dot12 = v1 * v2;
+
+    const double invDenom = 1 / (dot00 * dot11 - dot01 * dot01);
+    dot11 = (dot11 * dot02 - dot01 * dot12) * invDenom;
+    dot00 = (dot00 * dot12 - dot01 * dot02) * invDenom;
+
+    return (dot11 > 0) && (dot00 > 0) && (dot11 + dot00 < 1);
+}
+
+
+// -------------------------------------------------------------------------------
+/** Check whether the winding order of a given polygon is counter-clockwise.
+ *  The function accepts an unconstrained template parameter, but is intended
+ *  to be used only with aiVector2D and aiVector3D (z axis is ignored, only
+ *  x and y are taken into account).
+ * @note Code taken from http://cgm.cs.mcgill.ca/~godfried/teaching/cg-projects/97/Ian/applet1.html and translated to C++
+ */
+template <typename T>
+inline bool IsCCW(T* in, size_t npoints) {
+    double aa, bb, cc, b, c, theta;
+    double convex_turn;
+    double convex_sum = 0;
+
+    ai_assert(npoints >= 3);
+
+    for (size_t i = 0; i < npoints - 2; i++) {
+        aa = ((in[i+2].x - in[i].x) * (in[i+2].x - in[i].x)) +
+            ((-in[i+2].y + in[i].y) * (-in[i+2].y + in[i].y));
+
+        bb = ((in[i+1].x - in[i].x) * (in[i+1].x - in[i].x)) +
+            ((-in[i+1].y + in[i].y) * (-in[i+1].y + in[i].y));
+
+        cc = ((in[i+2].x - in[i+1].x) *
+            (in[i+2].x - in[i+1].x)) +
+            ((-in[i+2].y + in[i+1].y) *
+            (-in[i+2].y + in[i+1].y));
+
+        b = std::sqrt(bb);
+        c = std::sqrt(cc);
+        theta = std::acos((bb + cc - aa) / (2 * b * c));
+
+        if (OnLeftSideOfLine2D(in[i],in[i+2],in[i+1])) {
+            //  if (convex(in[i].x, in[i].y,
+            //      in[i+1].x, in[i+1].y,
+            //      in[i+2].x, in[i+2].y)) {
+            convex_turn = AI_MATH_PI_F - theta;
+            convex_sum += convex_turn;
+        }
+        else {
+            convex_sum -= AI_MATH_PI_F - theta;
+        }
+    }
+    aa = ((in[1].x - in[npoints-2].x) *
+        (in[1].x - in[npoints-2].x)) +
+        ((-in[1].y + in[npoints-2].y) *
+        (-in[1].y + in[npoints-2].y));
+
+    bb = ((in[0].x - in[npoints-2].x) *
+        (in[0].x - in[npoints-2].x)) +
+        ((-in[0].y + in[npoints-2].y) *
+        (-in[0].y + in[npoints-2].y));
+
+    cc = ((in[1].x - in[0].x) * (in[1].x - in[0].x)) +
+        ((-in[1].y + in[0].y) * (-in[1].y + in[0].y));
+
+    b = std::sqrt(bb);
+    c = std::sqrt(cc);
+    theta = std::acos((bb + cc - aa) / (2 * b * c));
+
+    //if (convex(in[npoints-2].x, in[npoints-2].y,
+    //  in[0].x, in[0].y,
+    //  in[1].x, in[1].y)) {
+    if (OnLeftSideOfLine2D(in[npoints-2],in[1],in[0])) {
+        convex_turn = AI_MATH_PI_F - theta;
+        convex_sum += convex_turn;
+    }
+    else {
+        convex_sum -= AI_MATH_PI_F - theta;
+    }
+
+    return convex_sum >= (2 * AI_MATH_PI_F);
+}
+
+
+// -------------------------------------------------------------------------------
+/** Compute the normal of an arbitrary polygon in R3.
+ *
+ *  The code is based on Newell's formula, that is a polygons normal is the ratio
+ *  of its area when projected onto the three coordinate axes.
+ *
+ *  @param out Receives the output normal
+ *  @param num Number of input vertices
+ *  @param x X data source. x[ofs_x*n] is the n'th element.
+ *  @param y Y data source. y[ofs_y*n] is the y'th element
+ *  @param z Z data source. z[ofs_z*n] is the z'th element
+ *
+ *  @note The data arrays must have storage for at least num+2 elements. Using
+ *  this method is much faster than the 'other' NewellNormal()
+ */
+template <int ofs_x, int ofs_y, int ofs_z, typename TReal>
+inline void NewellNormal (aiVector3t<TReal>& out, int num, TReal* x, TReal* y, TReal* z)
+{
+    // Duplicate the first two vertices at the end
+    x[(num+0)*ofs_x] = x[0];
+    x[(num+1)*ofs_x] = x[ofs_x];
+
+    y[(num+0)*ofs_y] = y[0];
+    y[(num+1)*ofs_y] = y[ofs_y];
+
+    z[(num+0)*ofs_z] = z[0];
+    z[(num+1)*ofs_z] = z[ofs_z];
+
+    TReal sum_xy = 0.0, sum_yz = 0.0, sum_zx = 0.0;
+
+    TReal *xptr = x +ofs_x, *xlow = x, *xhigh = x + ofs_x*2;
+    TReal *yptr = y +ofs_y, *ylow = y, *yhigh = y + ofs_y*2;
+    TReal *zptr = z +ofs_z, *zlow = z, *zhigh = z + ofs_z*2;
+
+    for (int tmp=0; tmp < num; tmp++) {
+        sum_xy += (*xptr) * ( (*yhigh) - (*ylow) );
+        sum_yz += (*yptr) * ( (*zhigh) - (*zlow) );
+        sum_zx += (*zptr) * ( (*xhigh) - (*xlow) );
+
+        xptr  += ofs_x;
+        xlow  += ofs_x;
+        xhigh += ofs_x;
+
+        yptr  += ofs_y;
+        ylow  += ofs_y;
+        yhigh += ofs_y;
+
+        zptr  += ofs_z;
+        zlow  += ofs_z;
+        zhigh += ofs_z;
+    }
+    out = aiVector3t<TReal>(sum_yz,sum_zx,sum_xy);
+}
+
+} // ! Assimp
+
+#endif
diff --git a/thirdparty/assimp/code/PostStepRegistry.cpp b/thirdparty/assimp/code/PostStepRegistry.cpp
new file mode 100644
index 0000000000..15b4a28843
--- /dev/null
+++ b/thirdparty/assimp/code/PostStepRegistry.cpp
@@ -0,0 +1,251 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file ImporterRegistry.cpp
+
+Central registry for all postprocessing steps available. Do not edit this file
+directly (unless you are adding new steps), instead use the
+corresponding preprocessor flag to selectively disable steps.
+*/
+
+#include "ProcessHelper.h"
+
+#ifndef ASSIMP_BUILD_NO_CALCTANGENTS_PROCESS
+#   include "CalcTangentsProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_JOINVERTICES_PROCESS
+#   include "JoinVerticesProcess.h"
+#endif
+#if !(defined ASSIMP_BUILD_NO_MAKELEFTHANDED_PROCESS && defined ASSIMP_BUILD_NO_FLIPUVS_PROCESS && defined ASSIMP_BUILD_NO_FLIPWINDINGORDER_PROCESS)
+#   include "ConvertToLHProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_TRIANGULATE_PROCESS
+#   include "TriangulateProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_DROPFACENORMALS_PROCESS
+#   include "DropFaceNormalsProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_GENFACENORMALS_PROCESS
+#   include "GenFaceNormalsProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_GENVERTEXNORMALS_PROCESS
+#   include "GenVertexNormalsProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_REMOVEVC_PROCESS
+#   include "RemoveVCProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_SPLITLARGEMESHES_PROCESS
+#   include "SplitLargeMeshes.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_PRETRANSFORMVERTICES_PROCESS
+#   include "PretransformVertices.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_LIMITBONEWEIGHTS_PROCESS
+#   include "LimitBoneWeightsProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_VALIDATEDS_PROCESS
+#   include "ValidateDataStructure.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_IMPROVECACHELOCALITY_PROCESS
+#   include "ImproveCacheLocality.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_FIXINFACINGNORMALS_PROCESS
+#   include "FixNormalsStep.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_REMOVE_REDUNDANTMATERIALS_PROCESS
+#   include "RemoveRedundantMaterials.h"
+#endif
+#if (!defined ASSIMP_BUILD_NO_EMBEDTEXTURES_PROCESS)
+#   include "EmbedTexturesProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_FINDINVALIDDATA_PROCESS
+#   include "FindInvalidDataProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_FINDDEGENERATES_PROCESS
+#   include "FindDegenerates.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_SORTBYPTYPE_PROCESS
+#   include "SortByPTypeProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_GENUVCOORDS_PROCESS
+#   include "ComputeUVMappingProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_TRANSFORMTEXCOORDS_PROCESS
+#   include "TextureTransform.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_FINDINSTANCES_PROCESS
+#   include "FindInstancesProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_OPTIMIZEMESHES_PROCESS
+#   include "OptimizeMeshes.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_OPTIMIZEGRAPH_PROCESS
+#   include "OptimizeGraph.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_SPLITBYBONECOUNT_PROCESS
+#   include "SplitByBoneCountProcess.h"
+#endif
+#ifndef ASSIMP_BUILD_NO_DEBONE_PROCESS
+#   include "DeboneProcess.h"
+#endif
+#if (!defined ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS)
+#   include "ScaleProcess.h"
+#endif
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+void GetPostProcessingStepInstanceList(std::vector< BaseProcess* >& out)
+{
+    // ----------------------------------------------------------------------------
+    // Add an instance of each post processing step here in the order
+    // of sequence it is executed. Steps that are added here are not
+    // validated - as RegisterPPStep() does - all dependencies must be given.
+    // ----------------------------------------------------------------------------
+    out.reserve(31);
+#if (!defined ASSIMP_BUILD_NO_MAKELEFTHANDED_PROCESS)
+    out.push_back( new MakeLeftHandedProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_FLIPUVS_PROCESS)
+    out.push_back( new FlipUVsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_FLIPWINDINGORDER_PROCESS)
+    out.push_back( new FlipWindingOrderProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_REMOVEVC_PROCESS)
+    out.push_back( new RemoveVCProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_REMOVE_REDUNDANTMATERIALS_PROCESS)
+    out.push_back( new RemoveRedundantMatsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_EMBEDTEXTURES_PROCESS)
+    out.push_back( new EmbedTexturesProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_FINDINSTANCES_PROCESS)
+    out.push_back( new FindInstancesProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_OPTIMIZEGRAPH_PROCESS)
+    out.push_back( new OptimizeGraphProcess());
+#endif
+#ifndef ASSIMP_BUILD_NO_GENUVCOORDS_PROCESS
+    out.push_back( new ComputeUVMappingProcess());
+#endif
+#ifndef ASSIMP_BUILD_NO_TRANSFORMTEXCOORDS_PROCESS
+    out.push_back( new TextureTransformStep());
+#endif
+#if (!defined ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS)
+    out.push_back( new ScaleProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_PRETRANSFORMVERTICES_PROCESS)
+    out.push_back( new PretransformVertices());
+#endif
+#if (!defined ASSIMP_BUILD_NO_TRIANGULATE_PROCESS)
+    out.push_back( new TriangulateProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_FINDDEGENERATES_PROCESS)
+    //find degenerates should run after triangulation (to sort out small
+    //generated triangles) but before sort by p types (in case there are lines
+    //and points generated and inserted into a mesh)
+    out.push_back( new FindDegeneratesProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_SORTBYPTYPE_PROCESS)
+    out.push_back( new SortByPTypeProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_FINDINVALIDDATA_PROCESS)
+    out.push_back( new FindInvalidDataProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_OPTIMIZEMESHES_PROCESS)
+    out.push_back( new OptimizeMeshesProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_FIXINFACINGNORMALS_PROCESS)
+    out.push_back( new FixInfacingNormalsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_SPLITBYBONECOUNT_PROCESS)
+    out.push_back( new SplitByBoneCountProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_SPLITLARGEMESHES_PROCESS)
+    out.push_back( new SplitLargeMeshesProcess_Triangle());
+#endif
+#if (!defined ASSIMP_BUILD_NO_GENFACENORMALS_PROCESS)
+    out.push_back( new DropFaceNormalsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_GENFACENORMALS_PROCESS)
+    out.push_back( new GenFaceNormalsProcess());
+#endif
+    // .........................................................................
+    // DON'T change the order of these five ..
+    // XXX this is actually a design weakness that dates back to the time
+    // when Importer would maintain the postprocessing step list exclusively.
+    // Now that others access it too, we need a better solution.
+    out.push_back( new ComputeSpatialSortProcess());
+    // .........................................................................
+
+#if (!defined ASSIMP_BUILD_NO_GENVERTEXNORMALS_PROCESS)
+    out.push_back( new GenVertexNormalsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_CALCTANGENTS_PROCESS)
+    out.push_back( new CalcTangentsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_JOINVERTICES_PROCESS)
+    out.push_back( new JoinVerticesProcess());
+#endif
+
+    // .........................................................................
+    out.push_back( new DestroySpatialSortProcess());
+    // .........................................................................
+
+#if (!defined ASSIMP_BUILD_NO_SPLITLARGEMESHES_PROCESS)
+    out.push_back( new SplitLargeMeshesProcess_Vertex());
+#endif
+#if (!defined ASSIMP_BUILD_NO_DEBONE_PROCESS)
+    out.push_back( new DeboneProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_LIMITBONEWEIGHTS_PROCESS)
+    out.push_back( new LimitBoneWeightsProcess());
+#endif
+#if (!defined ASSIMP_BUILD_NO_IMPROVECACHELOCALITY_PROCESS)
+    out.push_back( new ImproveCacheLocalityProcess());
+#endif
+}
+
+}
diff --git a/thirdparty/assimp/code/PretransformVertices.cpp b/thirdparty/assimp/code/PretransformVertices.cpp
new file mode 100644
index 0000000000..52001a0578
--- /dev/null
+++ b/thirdparty/assimp/code/PretransformVertices.cpp
@@ -0,0 +1,728 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file PretransformVertices.cpp
+ *  @brief Implementation of the "PretransformVertices" post processing step
+*/
+
+
+#include "PretransformVertices.h"
+#include "ProcessHelper.h"
+#include <assimp/SceneCombiner.h>
+#include <assimp/Exceptional.h>
+
+using namespace Assimp;
+
+// some array offsets
+#define AI_PTVS_VERTEX 0x0
+#define AI_PTVS_FACE 0x1
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+PretransformVertices::PretransformVertices()
+: configKeepHierarchy (false)
+, configNormalize(false)
+, configTransform(false)
+, configTransformation()
+, mConfigPointCloud( false ) {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+PretransformVertices::~PretransformVertices() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool PretransformVertices::IsActive( unsigned int pFlags) const
+{
+    return  (pFlags & aiProcess_PreTransformVertices) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup import configuration
+void PretransformVertices::SetupProperties(const Importer* pImp)
+{
+    // Get the current value of AI_CONFIG_PP_PTV_KEEP_HIERARCHY, AI_CONFIG_PP_PTV_NORMALIZE,
+    // AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION and AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION
+    configKeepHierarchy = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_KEEP_HIERARCHY,0));
+    configNormalize = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_NORMALIZE,0));
+    configTransform = (0 != pImp->GetPropertyInteger(AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION,0));
+
+    configTransformation = pImp->GetPropertyMatrix(AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION, aiMatrix4x4());
+
+    mConfigPointCloud = pImp->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Count the number of nodes
+unsigned int PretransformVertices::CountNodes( aiNode* pcNode )
+{
+    unsigned int iRet = 1;
+    for (unsigned int i = 0;i < pcNode->mNumChildren;++i)
+    {
+        iRet += CountNodes(pcNode->mChildren[i]);
+    }
+    return iRet;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a bitwise combination identifying the vertex format of a mesh
+unsigned int PretransformVertices::GetMeshVFormat( aiMesh* pcMesh )
+{
+    // the vertex format is stored in aiMesh::mBones for later retrieval.
+    // there isn't a good reason to compute it a few hundred times
+    // from scratch. The pointer is unused as animations are lost
+    // during PretransformVertices.
+    if (pcMesh->mBones)
+        return (unsigned int)(uint64_t)pcMesh->mBones;
+
+
+    const unsigned int iRet = GetMeshVFormatUnique(pcMesh);
+
+    // store the value for later use
+    pcMesh->mBones = (aiBone**)(uint64_t)iRet;
+    return iRet;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Count the number of vertices in the whole scene and a given
+// material index
+void PretransformVertices::CountVerticesAndFaces( aiScene* pcScene, aiNode* pcNode, unsigned int iMat,
+    unsigned int iVFormat, unsigned int* piFaces, unsigned int* piVertices)
+{
+    for (unsigned int i = 0; i < pcNode->mNumMeshes;++i)
+    {
+        aiMesh* pcMesh = pcScene->mMeshes[ pcNode->mMeshes[i] ];
+        if (iMat == pcMesh->mMaterialIndex && iVFormat == GetMeshVFormat(pcMesh))
+        {
+            *piVertices += pcMesh->mNumVertices;
+            *piFaces += pcMesh->mNumFaces;
+        }
+    }
+    for (unsigned int i = 0;i < pcNode->mNumChildren;++i)
+    {
+        CountVerticesAndFaces(pcScene,pcNode->mChildren[i],iMat,
+            iVFormat,piFaces,piVertices);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Collect vertex/face data
+void PretransformVertices::CollectData( aiScene* pcScene, aiNode* pcNode, unsigned int iMat,
+    unsigned int iVFormat, aiMesh* pcMeshOut,
+    unsigned int aiCurrent[2], unsigned int* num_refs)
+{
+    // No need to multiply if there's no transformation
+    const bool identity = pcNode->mTransformation.IsIdentity();
+    for (unsigned int i = 0; i < pcNode->mNumMeshes;++i)
+    {
+        aiMesh* pcMesh = pcScene->mMeshes[ pcNode->mMeshes[i] ];
+        if (iMat == pcMesh->mMaterialIndex && iVFormat == GetMeshVFormat(pcMesh))
+        {
+            // Decrement mesh reference counter
+            unsigned int& num_ref = num_refs[pcNode->mMeshes[i]];
+            ai_assert(0 != num_ref);
+            --num_ref;
+            // Save the name of the last mesh
+            if (num_ref==0)
+            {
+                pcMeshOut->mName = pcMesh->mName;
+            }
+
+            if (identity)   {
+                // copy positions without modifying them
+                ::memcpy(pcMeshOut->mVertices + aiCurrent[AI_PTVS_VERTEX],
+                    pcMesh->mVertices,
+                    pcMesh->mNumVertices * sizeof(aiVector3D));
+
+                if (iVFormat & 0x2) {
+                    // copy normals without modifying them
+                    ::memcpy(pcMeshOut->mNormals + aiCurrent[AI_PTVS_VERTEX],
+                        pcMesh->mNormals,
+                        pcMesh->mNumVertices * sizeof(aiVector3D));
+                }
+                if (iVFormat & 0x4)
+                {
+                    // copy tangents without modifying them
+                    ::memcpy(pcMeshOut->mTangents + aiCurrent[AI_PTVS_VERTEX],
+                        pcMesh->mTangents,
+                        pcMesh->mNumVertices * sizeof(aiVector3D));
+                    // copy bitangents without modifying them
+                    ::memcpy(pcMeshOut->mBitangents + aiCurrent[AI_PTVS_VERTEX],
+                        pcMesh->mBitangents,
+                        pcMesh->mNumVertices * sizeof(aiVector3D));
+                }
+            }
+            else
+            {
+                // copy positions, transform them to worldspace
+                for (unsigned int n = 0; n < pcMesh->mNumVertices;++n)  {
+                    pcMeshOut->mVertices[aiCurrent[AI_PTVS_VERTEX]+n] = pcNode->mTransformation * pcMesh->mVertices[n];
+                }
+                aiMatrix4x4 mWorldIT = pcNode->mTransformation;
+                mWorldIT.Inverse().Transpose();
+
+                // TODO: implement Inverse() for aiMatrix3x3
+                aiMatrix3x3 m = aiMatrix3x3(mWorldIT);
+
+                if (iVFormat & 0x2)
+                {
+                    // copy normals, transform them to worldspace
+                    for (unsigned int n = 0; n < pcMesh->mNumVertices;++n)  {
+                        pcMeshOut->mNormals[aiCurrent[AI_PTVS_VERTEX]+n] =
+                            (m * pcMesh->mNormals[n]).Normalize();
+                    }
+                }
+                if (iVFormat & 0x4)
+                {
+                    // copy tangents and bitangents, transform them to worldspace
+                    for (unsigned int n = 0; n < pcMesh->mNumVertices;++n)  {
+                        pcMeshOut->mTangents  [aiCurrent[AI_PTVS_VERTEX]+n] = (m * pcMesh->mTangents[n]).Normalize();
+                        pcMeshOut->mBitangents[aiCurrent[AI_PTVS_VERTEX]+n] = (m * pcMesh->mBitangents[n]).Normalize();
+                    }
+                }
+            }
+            unsigned int p = 0;
+            while (iVFormat & (0x100 << p))
+            {
+                // copy texture coordinates
+                memcpy(pcMeshOut->mTextureCoords[p] + aiCurrent[AI_PTVS_VERTEX],
+                    pcMesh->mTextureCoords[p],
+                    pcMesh->mNumVertices * sizeof(aiVector3D));
+                ++p;
+            }
+            p = 0;
+            while (iVFormat & (0x1000000 << p))
+            {
+                // copy vertex colors
+                memcpy(pcMeshOut->mColors[p] + aiCurrent[AI_PTVS_VERTEX],
+                    pcMesh->mColors[p],
+                    pcMesh->mNumVertices * sizeof(aiColor4D));
+                ++p;
+            }
+            // now we need to copy all faces. since we will delete the source mesh afterwards,
+            // we don't need to reallocate the array of indices except if this mesh is
+            // referenced multiple times.
+            for (unsigned int planck = 0;planck < pcMesh->mNumFaces;++planck)
+            {
+                aiFace& f_src = pcMesh->mFaces[planck];
+                aiFace& f_dst = pcMeshOut->mFaces[aiCurrent[AI_PTVS_FACE]+planck];
+
+                const unsigned int num_idx = f_src.mNumIndices;
+
+                f_dst.mNumIndices = num_idx;
+
+                unsigned int* pi;
+                if (!num_ref) { /* if last time the mesh is referenced -> no reallocation */
+                    pi = f_dst.mIndices = f_src.mIndices;
+
+                    // offset all vertex indices
+                    for (unsigned int hahn = 0; hahn < num_idx;++hahn){
+                        pi[hahn] += aiCurrent[AI_PTVS_VERTEX];
+                    }
+                }
+                else {
+                    pi = f_dst.mIndices = new unsigned int[num_idx];
+
+                    // copy and offset all vertex indices
+                    for (unsigned int hahn = 0; hahn < num_idx;++hahn){
+                        pi[hahn] = f_src.mIndices[hahn] + aiCurrent[AI_PTVS_VERTEX];
+                    }
+                }
+
+                // Update the mPrimitiveTypes member of the mesh
+                switch (pcMesh->mFaces[planck].mNumIndices)
+                {
+                case 0x1:
+                    pcMeshOut->mPrimitiveTypes |= aiPrimitiveType_POINT;
+                    break;
+                case 0x2:
+                    pcMeshOut->mPrimitiveTypes |= aiPrimitiveType_LINE;
+                    break;
+                case 0x3:
+                    pcMeshOut->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+                    break;
+                default:
+                    pcMeshOut->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+                    break;
+                };
+            }
+            aiCurrent[AI_PTVS_VERTEX] += pcMesh->mNumVertices;
+            aiCurrent[AI_PTVS_FACE]   += pcMesh->mNumFaces;
+        }
+    }
+
+    // append all children of us
+    for (unsigned int i = 0;i < pcNode->mNumChildren;++i) {
+        CollectData(pcScene,pcNode->mChildren[i],iMat,
+            iVFormat,pcMeshOut,aiCurrent,num_refs);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get a list of all vertex formats that occur for a given material index
+// The output list contains duplicate elements
+void PretransformVertices::GetVFormatList( aiScene* pcScene, unsigned int iMat,
+    std::list<unsigned int>& aiOut)
+{
+    for (unsigned int i = 0; i < pcScene->mNumMeshes;++i)
+    {
+        aiMesh* pcMesh = pcScene->mMeshes[ i ];
+        if (iMat == pcMesh->mMaterialIndex) {
+            aiOut.push_back(GetMeshVFormat(pcMesh));
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Compute the absolute transformation matrices of each node
+void PretransformVertices::ComputeAbsoluteTransform( aiNode* pcNode )
+{
+    if (pcNode->mParent)    {
+        pcNode->mTransformation = pcNode->mParent->mTransformation*pcNode->mTransformation;
+    }
+
+    for (unsigned int i = 0;i < pcNode->mNumChildren;++i)   {
+        ComputeAbsoluteTransform(pcNode->mChildren[i]);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Apply the node transformation to a mesh
+void PretransformVertices::ApplyTransform(aiMesh* mesh, const aiMatrix4x4& mat)
+{
+    // Check whether we need to transform the coordinates at all
+    if (!mat.IsIdentity()) {
+
+        if (mesh->HasPositions()) {
+            for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+                mesh->mVertices[i] = mat * mesh->mVertices[i];
+            }
+        }
+        if (mesh->HasNormals() || mesh->HasTangentsAndBitangents()) {
+            aiMatrix4x4 mWorldIT = mat;
+            mWorldIT.Inverse().Transpose();
+
+            // TODO: implement Inverse() for aiMatrix3x3
+            aiMatrix3x3 m = aiMatrix3x3(mWorldIT);
+
+            if (mesh->HasNormals()) {
+                for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+                    mesh->mNormals[i] = (m * mesh->mNormals[i]).Normalize();
+                }
+            }
+            if (mesh->HasTangentsAndBitangents()) {
+                for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
+                    mesh->mTangents[i]   = (m * mesh->mTangents[i]).Normalize();
+                    mesh->mBitangents[i] = (m * mesh->mBitangents[i]).Normalize();
+                }
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Simple routine to build meshes in worldspace, no further optimization
+void PretransformVertices::BuildWCSMeshes(std::vector<aiMesh*>& out, aiMesh** in,
+    unsigned int numIn, aiNode* node)
+{
+    // NOTE:
+    //  aiMesh::mNumBones store original source mesh, or UINT_MAX if not a copy
+    //  aiMesh::mBones store reference to abs. transform we multiplied with
+
+    // process meshes
+    for (unsigned int i = 0; i < node->mNumMeshes;++i) {
+        aiMesh* mesh = in[node->mMeshes[i]];
+
+        // check whether we can operate on this mesh
+        if (!mesh->mBones || *reinterpret_cast<aiMatrix4x4*>(mesh->mBones) == node->mTransformation) {
+            // yes, we can.
+            mesh->mBones = reinterpret_cast<aiBone**> (&node->mTransformation);
+            mesh->mNumBones = UINT_MAX;
+        }
+        else {
+
+            // try to find us in the list of newly created meshes
+            for (unsigned int n = 0; n < out.size(); ++n) {
+                aiMesh* ctz = out[n];
+                if (ctz->mNumBones == node->mMeshes[i] && *reinterpret_cast<aiMatrix4x4*>(ctz->mBones) ==  node->mTransformation) {
+
+                    // ok, use this one. Update node mesh index
+                    node->mMeshes[i] = numIn + n;
+                }
+            }
+            if (node->mMeshes[i] < numIn) {
+                // Worst case. Need to operate on a full copy of the mesh
+                ASSIMP_LOG_INFO("PretransformVertices: Copying mesh due to mismatching transforms");
+                aiMesh* ntz;
+
+                const unsigned int tmp = mesh->mNumBones; //
+                mesh->mNumBones = 0;
+                SceneCombiner::Copy(&ntz,mesh);
+                mesh->mNumBones = tmp;
+
+                ntz->mNumBones = node->mMeshes[i];
+                ntz->mBones = reinterpret_cast<aiBone**> (&node->mTransformation);
+
+                out.push_back(ntz);
+
+                node->mMeshes[i] = static_cast<unsigned int>(numIn + out.size() - 1);
+            }
+        }
+    }
+
+    // call children
+    for (unsigned int i = 0; i < node->mNumChildren;++i)
+        BuildWCSMeshes(out,in,numIn,node->mChildren[i]);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Reset transformation matrices to identity
+void PretransformVertices::MakeIdentityTransform(aiNode* nd)
+{
+    nd->mTransformation = aiMatrix4x4();
+
+    // call children
+    for (unsigned int i = 0; i < nd->mNumChildren;++i)
+        MakeIdentityTransform(nd->mChildren[i]);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build reference counters for all meshes
+void PretransformVertices::BuildMeshRefCountArray(aiNode* nd, unsigned int * refs)
+{
+    for (unsigned int i = 0; i< nd->mNumMeshes;++i)
+        refs[nd->mMeshes[i]]++;
+
+    // call children
+    for (unsigned int i = 0; i < nd->mNumChildren;++i)
+        BuildMeshRefCountArray(nd->mChildren[i],refs);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void PretransformVertices::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("PretransformVerticesProcess begin");
+
+    // Return immediately if we have no meshes
+    if (!pScene->mNumMeshes)
+        return;
+
+    const unsigned int iOldMeshes = pScene->mNumMeshes;
+    const unsigned int iOldAnimationChannels = pScene->mNumAnimations;
+    const unsigned int iOldNodes = CountNodes(pScene->mRootNode);
+
+    if(configTransform) {
+        pScene->mRootNode->mTransformation = configTransformation;
+    }
+
+    // first compute absolute transformation matrices for all nodes
+    ComputeAbsoluteTransform(pScene->mRootNode);
+
+    // Delete aiMesh::mBones for all meshes. The bones are
+    // removed during this step and we need the pointer as
+    // temporary storage
+    for (unsigned int i = 0; i < pScene->mNumMeshes;++i)    {
+        aiMesh* mesh = pScene->mMeshes[i];
+
+        for (unsigned int a = 0; a < mesh->mNumBones;++a)
+            delete mesh->mBones[a];
+
+        delete[] mesh->mBones;
+        mesh->mBones = NULL;
+    }
+
+    // now build a list of output meshes
+    std::vector<aiMesh*> apcOutMeshes;
+
+    // Keep scene hierarchy? It's an easy job in this case ...
+    // we go on and transform all meshes, if one is referenced by nodes
+    // with different absolute transformations a depth copy of the mesh
+    // is required.
+    if( configKeepHierarchy ) {
+
+        // Hack: store the matrix we're transforming a mesh with in aiMesh::mBones
+        BuildWCSMeshes(apcOutMeshes,pScene->mMeshes,pScene->mNumMeshes, pScene->mRootNode);
+
+        // ... if new meshes have been generated, append them to the end of the scene
+        if (apcOutMeshes.size() > 0) {
+            aiMesh** npp = new aiMesh*[pScene->mNumMeshes + apcOutMeshes.size()];
+
+            memcpy(npp,pScene->mMeshes,sizeof(aiMesh*)*pScene->mNumMeshes);
+            memcpy(npp+pScene->mNumMeshes,&apcOutMeshes[0],sizeof(aiMesh*)*apcOutMeshes.size());
+
+            pScene->mNumMeshes  += static_cast<unsigned int>(apcOutMeshes.size());
+            delete[] pScene->mMeshes; pScene->mMeshes = npp;
+        }
+
+        // now iterate through all meshes and transform them to worldspace
+        for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+            ApplyTransform(pScene->mMeshes[i],*reinterpret_cast<aiMatrix4x4*>( pScene->mMeshes[i]->mBones ));
+
+            // prevent improper destruction
+            pScene->mMeshes[i]->mBones    = NULL;
+            pScene->mMeshes[i]->mNumBones = 0;
+        }
+    } else {
+        apcOutMeshes.reserve(pScene->mNumMaterials<<1u);
+        std::list<unsigned int> aiVFormats;
+
+        std::vector<unsigned int> s(pScene->mNumMeshes,0);
+        BuildMeshRefCountArray(pScene->mRootNode,&s[0]);
+
+        for (unsigned int i = 0; i < pScene->mNumMaterials;++i)     {
+            // get the list of all vertex formats for this material
+            aiVFormats.clear();
+            GetVFormatList(pScene,i,aiVFormats);
+            aiVFormats.sort();
+            aiVFormats.unique();
+            for (std::list<unsigned int>::const_iterator j =  aiVFormats.begin();j != aiVFormats.end();++j) {
+                unsigned int iVertices = 0;
+                unsigned int iFaces = 0;
+                CountVerticesAndFaces(pScene,pScene->mRootNode,i,*j,&iFaces,&iVertices);
+                if (0 != iFaces && 0 != iVertices)
+                {
+                    apcOutMeshes.push_back(new aiMesh());
+                    aiMesh* pcMesh = apcOutMeshes.back();
+                    pcMesh->mNumFaces = iFaces;
+                    pcMesh->mNumVertices = iVertices;
+                    pcMesh->mFaces = new aiFace[iFaces];
+                    pcMesh->mVertices = new aiVector3D[iVertices];
+                    pcMesh->mMaterialIndex = i;
+                    if ((*j) & 0x2)pcMesh->mNormals = new aiVector3D[iVertices];
+                    if ((*j) & 0x4)
+                    {
+                        pcMesh->mTangents    = new aiVector3D[iVertices];
+                        pcMesh->mBitangents  = new aiVector3D[iVertices];
+                    }
+                    iFaces = 0;
+                    while ((*j) & (0x100 << iFaces))
+                    {
+                        pcMesh->mTextureCoords[iFaces] = new aiVector3D[iVertices];
+                        if ((*j) & (0x10000 << iFaces))pcMesh->mNumUVComponents[iFaces] = 3;
+                        else pcMesh->mNumUVComponents[iFaces] = 2;
+                        iFaces++;
+                    }
+                    iFaces = 0;
+                    while ((*j) & (0x1000000 << iFaces))
+                        pcMesh->mColors[iFaces++] = new aiColor4D[iVertices];
+
+                    // fill the mesh ...
+                    unsigned int aiTemp[2] = {0,0};
+                    CollectData(pScene,pScene->mRootNode,i,*j,pcMesh,aiTemp,&s[0]);
+                }
+            }
+        }
+
+        // If no meshes are referenced in the node graph it is possible that we get no output meshes.
+        if (apcOutMeshes.empty()) {
+            
+            throw DeadlyImportError("No output meshes: all meshes are orphaned and are not referenced by any nodes");
+        }
+        else
+        {
+            // now delete all meshes in the scene and build a new mesh list
+            for (unsigned int i = 0; i < pScene->mNumMeshes;++i)
+            {
+                aiMesh* mesh = pScene->mMeshes[i];
+                mesh->mNumBones = 0;
+                mesh->mBones    = NULL;
+
+                // we're reusing the face index arrays. avoid destruction
+                for (unsigned int a = 0; a < mesh->mNumFaces; ++a) {
+                    mesh->mFaces[a].mNumIndices = 0;
+                    mesh->mFaces[a].mIndices = NULL;
+                }
+
+                delete mesh;
+
+                // Invalidate the contents of the old mesh array. We will most
+                // likely have less output meshes now, so the last entries of
+                // the mesh array are not overridden. We set them to NULL to
+                // make sure the developer gets notified when his application
+                // attempts to access these fields ...
+                mesh = NULL;
+            }
+
+            // It is impossible that we have more output meshes than
+            // input meshes, so we can easily reuse the old mesh array
+            pScene->mNumMeshes = (unsigned int)apcOutMeshes.size();
+            for (unsigned int i = 0; i < pScene->mNumMeshes;++i) {
+                pScene->mMeshes[i] = apcOutMeshes[i];
+            }
+        }
+    }
+
+    // remove all animations from the scene
+    for (unsigned int i = 0; i < pScene->mNumAnimations;++i)
+        delete pScene->mAnimations[i];
+    delete[] pScene->mAnimations;
+
+    pScene->mAnimations    = NULL;
+    pScene->mNumAnimations = 0;
+
+    // --- we need to keep all cameras and lights
+    for (unsigned int i = 0; i < pScene->mNumCameras;++i)
+    {
+        aiCamera* cam = pScene->mCameras[i];
+        const aiNode* nd = pScene->mRootNode->FindNode(cam->mName);
+        ai_assert(NULL != nd);
+
+        // multiply all properties of the camera with the absolute
+        // transformation of the corresponding node
+        cam->mPosition = nd->mTransformation * cam->mPosition;
+        cam->mLookAt   = aiMatrix3x3( nd->mTransformation ) * cam->mLookAt;
+        cam->mUp       = aiMatrix3x3( nd->mTransformation ) * cam->mUp;
+    }
+
+    for (unsigned int i = 0; i < pScene->mNumLights;++i)
+    {
+        aiLight* l = pScene->mLights[i];
+        const aiNode* nd = pScene->mRootNode->FindNode(l->mName);
+        ai_assert(NULL != nd);
+
+        // multiply all properties of the camera with the absolute
+        // transformation of the corresponding node
+        l->mPosition   = nd->mTransformation * l->mPosition;
+        l->mDirection  = aiMatrix3x3( nd->mTransformation ) * l->mDirection;
+        l->mUp         = aiMatrix3x3( nd->mTransformation ) * l->mUp;
+    }
+
+    if( !configKeepHierarchy ) {
+
+        // now delete all nodes in the scene and build a new
+        // flat node graph with a root node and some level 1 children
+        aiNode* newRoot = new aiNode();
+        newRoot->mName = pScene->mRootNode->mName;
+        delete pScene->mRootNode;
+        pScene->mRootNode = newRoot;
+
+        if (1 == pScene->mNumMeshes && !pScene->mNumLights && !pScene->mNumCameras)
+        {
+            pScene->mRootNode->mNumMeshes = 1;
+            pScene->mRootNode->mMeshes = new unsigned int[1];
+            pScene->mRootNode->mMeshes[0] = 0;
+        }
+        else
+        {
+            pScene->mRootNode->mNumChildren = pScene->mNumMeshes+pScene->mNumLights+pScene->mNumCameras;
+            aiNode** nodes = pScene->mRootNode->mChildren = new aiNode*[pScene->mRootNode->mNumChildren];
+
+            // generate mesh nodes
+            for (unsigned int i = 0; i < pScene->mNumMeshes;++i,++nodes)
+            {
+                aiNode* pcNode = new aiNode();
+                *nodes = pcNode;
+                pcNode->mParent = pScene->mRootNode;
+                pcNode->mName = pScene->mMeshes[i]->mName;
+
+                // setup mesh indices
+                pcNode->mNumMeshes = 1;
+                pcNode->mMeshes = new unsigned int[1];
+                pcNode->mMeshes[0] = i;
+            }
+            // generate light nodes
+            for (unsigned int i = 0; i < pScene->mNumLights;++i,++nodes)
+            {
+                aiNode* pcNode = new aiNode();
+                *nodes = pcNode;
+                pcNode->mParent = pScene->mRootNode;
+                pcNode->mName.length = ai_snprintf(pcNode->mName.data, MAXLEN, "light_%u",i);
+                pScene->mLights[i]->mName = pcNode->mName;
+            }
+            // generate camera nodes
+            for (unsigned int i = 0; i < pScene->mNumCameras;++i,++nodes)
+            {
+                aiNode* pcNode = new aiNode();
+                *nodes = pcNode;
+                pcNode->mParent = pScene->mRootNode;
+                pcNode->mName.length = ::ai_snprintf(pcNode->mName.data,MAXLEN,"cam_%u",i);
+                pScene->mCameras[i]->mName = pcNode->mName;
+            }
+        }
+    }
+    else {
+        // ... and finally set the transformation matrix of all nodes to identity
+        MakeIdentityTransform(pScene->mRootNode);
+    }
+
+    if (configNormalize) {
+        // compute the boundary of all meshes
+        aiVector3D min,max;
+        MinMaxChooser<aiVector3D> ()(min,max);
+
+        for (unsigned int a = 0; a <  pScene->mNumMeshes; ++a) {
+            aiMesh* m = pScene->mMeshes[a];
+            for (unsigned int i = 0; i < m->mNumVertices;++i) {
+                min = std::min(m->mVertices[i],min);
+                max = std::max(m->mVertices[i],max);
+            }
+        }
+
+        // find the dominant axis
+        aiVector3D d = max-min;
+        const ai_real div = std::max(d.x,std::max(d.y,d.z))*ai_real( 0.5);
+
+        d = min + d * (ai_real)0.5;
+        for (unsigned int a = 0; a <  pScene->mNumMeshes; ++a) {
+            aiMesh* m = pScene->mMeshes[a];
+            for (unsigned int i = 0; i < m->mNumVertices;++i) {
+                m->mVertices[i] = (m->mVertices[i]-d)/div;
+            }
+        }
+    }
+
+    // print statistics
+    if (!DefaultLogger::isNullLogger()) {
+        ASSIMP_LOG_DEBUG("PretransformVerticesProcess finished");
+
+        ASSIMP_LOG_INFO_F("Removed ", iOldNodes, " nodes and ", iOldAnimationChannels, " animation channels (", 
+            CountNodes(pScene->mRootNode) ," output nodes)" );
+        ASSIMP_LOG_INFO_F("Kept ", pScene->mNumLights, " lights and ", pScene->mNumCameras, " cameras." );
+        ASSIMP_LOG_INFO_F("Moved ", iOldMeshes, " meshes to WCS (number of output meshes: ", pScene->mNumMeshes, ")");
+    }
+}
diff --git a/thirdparty/assimp/code/PretransformVertices.h b/thirdparty/assimp/code/PretransformVertices.h
new file mode 100644
index 0000000000..b7329af130
--- /dev/null
+++ b/thirdparty/assimp/code/PretransformVertices.h
@@ -0,0 +1,163 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file PretransformVertices.h
+ *  @brief Defines a post processing step to pretransform all
+ *    vertices in the scenegraph
+ */
+#ifndef AI_PRETRANSFORMVERTICES_H_INC
+#define AI_PRETRANSFORMVERTICES_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+#include <list>
+#include <vector>
+
+struct aiNode;
+class PretransformVerticesTest;
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** The PretransformVertices pre-transforms all vertices in the node tree
+ *  and removes the whole graph. The output is a list of meshes, one for
+ *  each material.
+*/
+class ASSIMP_API PretransformVertices : public BaseProcess {
+public:
+    PretransformVertices ();
+    ~PretransformVertices ();
+
+    // -------------------------------------------------------------------
+    // Check whether step is active
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    // Execute step on a given scene
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    // Setup import settings
+    void SetupProperties(const Importer* pImp);
+
+    // -------------------------------------------------------------------
+    /** @brief Toggle the 'keep hierarchy' option
+     *  @param d hm ... difficult to guess what this means, hu!?
+     */
+    void KeepHierarchy(bool d) {
+        configKeepHierarchy = d;
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Check whether 'keep hierarchy' is currently enabled.
+     *  @return ...
+     */
+    bool IsHierarchyKept() const {
+        return configKeepHierarchy;
+    }
+
+private:
+    // -------------------------------------------------------------------
+    // Count the number of nodes
+    unsigned int CountNodes( aiNode* pcNode );
+
+    // -------------------------------------------------------------------
+    // Get a bitwise combination identifying the vertex format of a mesh
+    unsigned int GetMeshVFormat(aiMesh* pcMesh);
+
+    // -------------------------------------------------------------------
+    // Count the number of vertices in the whole scene and a given
+    // material index
+    void CountVerticesAndFaces( aiScene* pcScene, aiNode* pcNode,
+        unsigned int iMat,
+        unsigned int iVFormat,
+        unsigned int* piFaces,
+        unsigned int* piVertices);
+
+    // -------------------------------------------------------------------
+    // Collect vertex/face data
+    void CollectData( aiScene* pcScene, aiNode* pcNode,
+        unsigned int iMat,
+        unsigned int iVFormat,
+        aiMesh* pcMeshOut,
+        unsigned int aiCurrent[2],
+        unsigned int* num_refs);
+
+    // -------------------------------------------------------------------
+    // Get a list of all vertex formats that occur for a given material
+    // The output list contains duplicate elements
+    void GetVFormatList( aiScene* pcScene, unsigned int iMat,
+        std::list<unsigned int>& aiOut);
+
+    // -------------------------------------------------------------------
+    // Compute the absolute transformation matrices of each node
+    void ComputeAbsoluteTransform( aiNode* pcNode );
+
+    // -------------------------------------------------------------------
+    // Simple routine to build meshes in worldspace, no further optimization
+    void BuildWCSMeshes(std::vector<aiMesh*>& out, aiMesh** in,
+        unsigned int numIn, aiNode* node);
+
+    // -------------------------------------------------------------------
+    // Apply the node transformation to a mesh
+    void ApplyTransform(aiMesh* mesh, const aiMatrix4x4& mat);
+
+    // -------------------------------------------------------------------
+    // Reset transformation matrices to identity
+    void MakeIdentityTransform(aiNode* nd);
+
+    // -------------------------------------------------------------------
+    // Build reference counters for all meshes
+    void BuildMeshRefCountArray(aiNode* nd, unsigned int * refs);
+
+
+
+    //! Configuration option: keep scene hierarchy as long as possible
+    bool configKeepHierarchy;
+    bool configNormalize;
+    bool configTransform;
+    aiMatrix4x4 configTransformation;
+    bool mConfigPointCloud;
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_GENFACENORMALPROCESS_H_INC
diff --git a/thirdparty/assimp/code/ProcessHelper.cpp b/thirdparty/assimp/code/ProcessHelper.cpp
new file mode 100644
index 0000000000..59869fdff7
--- /dev/null
+++ b/thirdparty/assimp/code/ProcessHelper.cpp
@@ -0,0 +1,443 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/// @file ProcessHelper.cpp
+/** Implement shared utility functions for postprocessing steps */
+
+
+#include "ProcessHelper.h"
+
+
+#include <limits>
+
+namespace Assimp {
+
+// -------------------------------------------------------------------------------
+void ConvertListToStrings(const std::string& in, std::list<std::string>& out)
+{
+    const char* s = in.c_str();
+    while (*s) {
+        SkipSpacesAndLineEnd(&s);
+        if (*s == '\'') {
+            const char* base = ++s;
+            while (*s != '\'') {
+                ++s;
+                if (*s == '\0') {
+                    ASSIMP_LOG_ERROR("ConvertListToString: String list is ill-formatted");
+                    return;
+                }
+            }
+            out.push_back(std::string(base,(size_t)(s-base)));
+            ++s;
+        }
+        else {
+            out.push_back(GetNextToken(s));
+        }
+    }
+}
+
+// -------------------------------------------------------------------------------
+void FindAABBTransformed (const aiMesh* mesh, aiVector3D& min, aiVector3D& max,
+    const aiMatrix4x4& m)
+{
+    min = aiVector3D ( ai_real( 10e10 ), ai_real( 10e10 ), ai_real( 10e10 ) );
+    max = aiVector3D ( ai_real( -10e10 ), ai_real( -10e10 ), ai_real( -10e10 ) );
+    for (unsigned int i = 0;i < mesh->mNumVertices;++i)
+    {
+        const aiVector3D v = m * mesh->mVertices[i];
+        min = std::min(v,min);
+        max = std::max(v,max);
+    }
+}
+
+// -------------------------------------------------------------------------------
+void FindMeshCenter (aiMesh* mesh, aiVector3D& out, aiVector3D& min, aiVector3D& max)
+{
+    ArrayBounds(mesh->mVertices,mesh->mNumVertices, min,max);
+    out = min + (max-min)*(ai_real)0.5;
+}
+
+// -------------------------------------------------------------------------------
+void FindSceneCenter (aiScene* scene, aiVector3D& out, aiVector3D& min, aiVector3D& max) {
+    if ( NULL == scene ) {
+        return;
+    }
+
+    if ( 0 == scene->mNumMeshes ) {
+        return;
+    }
+    FindMeshCenter(scene->mMeshes[0], out, min, max);
+    for (unsigned int i = 1; i < scene->mNumMeshes; ++i) {
+        aiVector3D tout, tmin, tmax;
+        FindMeshCenter(scene->mMeshes[i], tout, tmin, tmax);
+        if (min[0] > tmin[0]) min[0] = tmin[0];
+        if (min[1] > tmin[1]) min[1] = tmin[1];
+        if (min[2] > tmin[2]) min[2] = tmin[2];
+        if (max[0] < tmax[0]) max[0] = tmax[0];
+        if (max[1] < tmax[1]) max[1] = tmax[1];
+        if (max[2] < tmax[2]) max[2] = tmax[2];
+    }
+    out = min + (max-min)*(ai_real)0.5;
+}
+
+
+// -------------------------------------------------------------------------------
+void FindMeshCenterTransformed (aiMesh* mesh, aiVector3D& out, aiVector3D& min,
+    aiVector3D& max, const aiMatrix4x4& m)
+{
+    FindAABBTransformed(mesh,min,max,m);
+    out = min + (max-min)*(ai_real)0.5;
+}
+
+// -------------------------------------------------------------------------------
+void FindMeshCenter (aiMesh* mesh, aiVector3D& out)
+{
+    aiVector3D min,max;
+    FindMeshCenter(mesh,out,min,max);
+}
+
+// -------------------------------------------------------------------------------
+void FindMeshCenterTransformed (aiMesh* mesh, aiVector3D& out,
+    const aiMatrix4x4& m)
+{
+    aiVector3D min,max;
+    FindMeshCenterTransformed(mesh,out,min,max,m);
+}
+
+// -------------------------------------------------------------------------------
+ai_real ComputePositionEpsilon(const aiMesh* pMesh)
+{
+    const ai_real epsilon = ai_real( 1e-4 );
+
+    // calculate the position bounds so we have a reliable epsilon to check position differences against
+    aiVector3D minVec, maxVec;
+    ArrayBounds(pMesh->mVertices,pMesh->mNumVertices,minVec,maxVec);
+    return (maxVec - minVec).Length() * epsilon;
+}
+
+// -------------------------------------------------------------------------------
+ai_real ComputePositionEpsilon(const aiMesh* const* pMeshes, size_t num)
+{
+    ai_assert( NULL != pMeshes );
+
+    const ai_real epsilon = ai_real( 1e-4 );
+
+    // calculate the position bounds so we have a reliable epsilon to check position differences against
+    aiVector3D minVec, maxVec, mi, ma;
+    MinMaxChooser<aiVector3D>()(minVec,maxVec);
+
+    for (size_t a = 0; a < num; ++a) {
+        const aiMesh* pMesh = pMeshes[a];
+        ArrayBounds(pMesh->mVertices,pMesh->mNumVertices,mi,ma);
+
+        minVec = std::min(minVec,mi);
+        maxVec = std::max(maxVec,ma);
+    }
+    return (maxVec - minVec).Length() * epsilon;
+}
+
+
+// -------------------------------------------------------------------------------
+unsigned int GetMeshVFormatUnique(const aiMesh* pcMesh)
+{
+    ai_assert(NULL != pcMesh);
+
+    // FIX: the hash may never be 0. Otherwise a comparison against
+    // nullptr could be successful
+    unsigned int iRet = 1;
+
+    // normals
+    if (pcMesh->HasNormals())iRet |= 0x2;
+    // tangents and bitangents
+    if (pcMesh->HasTangentsAndBitangents())iRet |= 0x4;
+
+#ifdef BOOST_STATIC_ASSERT
+    BOOST_STATIC_ASSERT(8 >= AI_MAX_NUMBER_OF_COLOR_SETS);
+    BOOST_STATIC_ASSERT(8 >= AI_MAX_NUMBER_OF_TEXTURECOORDS);
+#endif
+
+    // texture coordinates
+    unsigned int p = 0;
+    while (pcMesh->HasTextureCoords(p))
+    {
+        iRet |= (0x100 << p);
+        if (3 == pcMesh->mNumUVComponents[p])
+            iRet |= (0x10000 << p);
+
+        ++p;
+    }
+    // vertex colors
+    p = 0;
+    while (pcMesh->HasVertexColors(p))iRet |= (0x1000000 << p++);
+    return iRet;
+}
+
+// -------------------------------------------------------------------------------
+VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh)
+{
+    if (!pMesh || !pMesh->mNumVertices || !pMesh->mNumBones) {
+        return NULL;
+    }
+
+    VertexWeightTable* avPerVertexWeights = new VertexWeightTable[pMesh->mNumVertices];
+    for (unsigned int i = 0; i < pMesh->mNumBones;++i)  {
+
+        aiBone* bone = pMesh->mBones[i];
+        for (unsigned int a = 0; a < bone->mNumWeights;++a) {
+            const aiVertexWeight& weight = bone->mWeights[a];
+            avPerVertexWeights[weight.mVertexId].push_back( std::pair<unsigned int,float>(i,weight.mWeight) );
+        }
+    }
+    return avPerVertexWeights;
+}
+
+
+// -------------------------------------------------------------------------------
+const char* TextureTypeToString(aiTextureType in)
+{
+    switch (in)
+    {
+    case aiTextureType_NONE:
+        return "n/a";
+    case aiTextureType_DIFFUSE:
+        return "Diffuse";
+    case aiTextureType_SPECULAR:
+        return "Specular";
+    case aiTextureType_AMBIENT:
+        return "Ambient";
+    case aiTextureType_EMISSIVE:
+        return "Emissive";
+    case aiTextureType_OPACITY:
+        return "Opacity";
+    case aiTextureType_NORMALS:
+        return "Normals";
+    case aiTextureType_HEIGHT:
+        return "Height";
+    case aiTextureType_SHININESS:
+        return "Shininess";
+    case aiTextureType_DISPLACEMENT:
+        return "Displacement";
+    case aiTextureType_LIGHTMAP:
+        return "Lightmap";
+    case aiTextureType_REFLECTION:
+        return "Reflection";
+    case aiTextureType_UNKNOWN:
+        return "Unknown";
+    default:
+        break;
+    }
+
+    ai_assert(false);
+    return  "BUG";
+}
+
+// -------------------------------------------------------------------------------
+const char* MappingTypeToString(aiTextureMapping in)
+{
+    switch (in)
+    {
+    case aiTextureMapping_UV:
+        return "UV";
+    case aiTextureMapping_BOX:
+        return "Box";
+    case aiTextureMapping_SPHERE:
+        return "Sphere";
+    case aiTextureMapping_CYLINDER:
+        return "Cylinder";
+    case aiTextureMapping_PLANE:
+        return "Plane";
+    case aiTextureMapping_OTHER:
+        return "Other";
+    default:
+        break;
+    }
+
+    ai_assert(false);
+    return  "BUG";
+}
+
+
+// -------------------------------------------------------------------------------
+aiMesh* MakeSubmesh(const aiMesh *pMesh, const std::vector<unsigned int> &subMeshFaces, unsigned int subFlags)
+{
+    aiMesh *oMesh = new aiMesh();
+    std::vector<unsigned int> vMap(pMesh->mNumVertices,UINT_MAX);
+
+    size_t numSubVerts = 0;
+    size_t numSubFaces = subMeshFaces.size();
+
+    for(unsigned int i=0;i<numSubFaces;i++) {
+        const aiFace &f = pMesh->mFaces[subMeshFaces[i]];
+
+        for(unsigned int j=0;j<f.mNumIndices;j++)   {
+            if(vMap[f.mIndices[j]]==UINT_MAX)   {
+                vMap[f.mIndices[j]] = static_cast<unsigned int>(numSubVerts++);
+            }
+        }
+    }
+
+    oMesh->mName = pMesh->mName;
+
+    oMesh->mMaterialIndex = pMesh->mMaterialIndex;
+    oMesh->mPrimitiveTypes = pMesh->mPrimitiveTypes;
+
+    // create all the arrays for this mesh if the old mesh contained them
+
+    oMesh->mNumFaces = static_cast<unsigned int>(subMeshFaces.size());
+    oMesh->mNumVertices = static_cast<unsigned int>(numSubVerts);
+    oMesh->mVertices = new aiVector3D[numSubVerts];
+    if( pMesh->HasNormals() ) {
+        oMesh->mNormals = new aiVector3D[numSubVerts];
+    }
+
+    if( pMesh->HasTangentsAndBitangents() ) {
+        oMesh->mTangents = new aiVector3D[numSubVerts];
+        oMesh->mBitangents = new aiVector3D[numSubVerts];
+    }
+
+    for( size_t a = 0;  pMesh->HasTextureCoords(static_cast<unsigned int>(a)) ; ++a ) {
+        oMesh->mTextureCoords[a] = new aiVector3D[numSubVerts];
+        oMesh->mNumUVComponents[a] = pMesh->mNumUVComponents[a];
+    }
+
+    for( size_t a = 0; pMesh->HasVertexColors( static_cast<unsigned int>(a)); ++a )    {
+        oMesh->mColors[a] = new aiColor4D[numSubVerts];
+    }
+
+    // and copy over the data, generating faces with linear indices along the way
+    oMesh->mFaces = new aiFace[numSubFaces];
+
+    for(unsigned int a = 0; a < numSubFaces; ++a )  {
+
+        const aiFace& srcFace = pMesh->mFaces[subMeshFaces[a]];
+        aiFace& dstFace = oMesh->mFaces[a];
+        dstFace.mNumIndices = srcFace.mNumIndices;
+        dstFace.mIndices = new unsigned int[dstFace.mNumIndices];
+
+        // accumulate linearly all the vertices of the source face
+        for( size_t b = 0; b < dstFace.mNumIndices; ++b )   {
+            dstFace.mIndices[b] = vMap[srcFace.mIndices[b]];
+        }
+    }
+
+    for(unsigned int srcIndex = 0; srcIndex < pMesh->mNumVertices; ++srcIndex ) {
+        unsigned int nvi = vMap[srcIndex];
+        if(nvi==UINT_MAX) {
+            continue;
+        }
+
+        oMesh->mVertices[nvi] = pMesh->mVertices[srcIndex];
+        if( pMesh->HasNormals() ) {
+            oMesh->mNormals[nvi] = pMesh->mNormals[srcIndex];
+        }
+
+        if( pMesh->HasTangentsAndBitangents() ) {
+            oMesh->mTangents[nvi] = pMesh->mTangents[srcIndex];
+            oMesh->mBitangents[nvi] = pMesh->mBitangents[srcIndex];
+        }
+        for( size_t c = 0, cc = pMesh->GetNumUVChannels(); c < cc; ++c )    {
+                oMesh->mTextureCoords[c][nvi] = pMesh->mTextureCoords[c][srcIndex];
+        }
+        for( size_t c = 0, cc = pMesh->GetNumColorChannels(); c < cc; ++c ) {
+            oMesh->mColors[c][nvi] = pMesh->mColors[c][srcIndex];
+        }
+    }
+
+    if(~subFlags&AI_SUBMESH_FLAGS_SANS_BONES)   {
+        std::vector<unsigned int> subBones(pMesh->mNumBones,0);
+
+        for(unsigned int a=0;a<pMesh->mNumBones;++a)    {
+            const aiBone* bone = pMesh->mBones[a];
+
+            for(unsigned int b=0;b<bone->mNumWeights;b++)   {
+                unsigned int v = vMap[bone->mWeights[b].mVertexId];
+
+                if(v!=UINT_MAX) {
+                    subBones[a]++;
+                }
+            }
+        }
+
+        for(unsigned int a=0;a<pMesh->mNumBones;++a)    {
+            if(subBones[a]>0) {
+                oMesh->mNumBones++;
+            }
+        }
+
+        if(oMesh->mNumBones) {
+            oMesh->mBones = new aiBone*[oMesh->mNumBones]();
+            unsigned int nbParanoia = oMesh->mNumBones;
+
+            oMesh->mNumBones = 0; //rewind
+
+            for(unsigned int a=0;a<pMesh->mNumBones;++a)    {
+                if(subBones[a]==0) {
+                    continue;
+                }
+                aiBone *newBone = new aiBone;
+                oMesh->mBones[oMesh->mNumBones++] = newBone;
+
+                const aiBone* bone = pMesh->mBones[a];
+
+                newBone->mName = bone->mName;
+                newBone->mOffsetMatrix = bone->mOffsetMatrix;
+                newBone->mWeights = new aiVertexWeight[subBones[a]];
+
+                for(unsigned int b=0;b<bone->mNumWeights;b++)   {
+                    const unsigned int v = vMap[bone->mWeights[b].mVertexId];
+
+                    if(v!=UINT_MAX) {
+                        aiVertexWeight w(v,bone->mWeights[b].mWeight);
+                        newBone->mWeights[newBone->mNumWeights++] = w;
+                    }
+                }
+            }
+
+            ai_assert(nbParanoia==oMesh->mNumBones);
+            (void)nbParanoia; // remove compiler warning on release build
+        }
+    }
+
+    return oMesh;
+}
+
+} // namespace Assimp
diff --git a/thirdparty/assimp/code/ProcessHelper.h b/thirdparty/assimp/code/ProcessHelper.h
new file mode 100644
index 0000000000..c59f3217bf
--- /dev/null
+++ b/thirdparty/assimp/code/ProcessHelper.h
@@ -0,0 +1,386 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef AI_PROCESS_HELPER_H_INCLUDED
+#define AI_PROCESS_HELPER_H_INCLUDED
+
+#include <assimp/postprocess.h>
+#include <assimp/anim.h>
+#include <assimp/mesh.h>
+#include <assimp/material.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+
+#include <assimp/SpatialSort.h>
+#include "BaseProcess.h"
+#include <assimp/ParsingUtils.h>
+
+#include <list>
+
+// -------------------------------------------------------------------------------
+// Some extensions to std namespace. Mainly std::min and std::max for all
+// flat data types in the aiScene. They're used to quickly determine the
+// min/max bounds of data arrays.
+#ifdef __cplusplus
+namespace std {
+
+    // std::min for aiVector3D
+    template <typename TReal>
+    inline ::aiVector3t<TReal> min (const ::aiVector3t<TReal>& a, const ::aiVector3t<TReal>& b) {
+        return ::aiVector3t<TReal> (min(a.x,b.x),min(a.y,b.y),min(a.z,b.z));
+    }
+
+    // std::max for aiVector3t<TReal>
+    template <typename TReal>
+    inline ::aiVector3t<TReal> max (const ::aiVector3t<TReal>& a, const ::aiVector3t<TReal>& b) {
+        return ::aiVector3t<TReal> (max(a.x,b.x),max(a.y,b.y),max(a.z,b.z));
+    }
+
+    // std::min for aiVector2t<TReal>
+    template <typename TReal>
+    inline ::aiVector2t<TReal> min (const ::aiVector2t<TReal>& a, const ::aiVector2t<TReal>& b) {
+        return ::aiVector2t<TReal> (min(a.x,b.x),min(a.y,b.y));
+    }
+
+    // std::max for aiVector2t<TReal>
+    template <typename TReal>
+    inline ::aiVector2t<TReal> max (const ::aiVector2t<TReal>& a, const ::aiVector2t<TReal>& b) {
+        return ::aiVector2t<TReal> (max(a.x,b.x),max(a.y,b.y));
+    }
+
+    // std::min for aiColor4D
+    template <typename TReal>
+    inline ::aiColor4t<TReal> min (const ::aiColor4t<TReal>& a, const ::aiColor4t<TReal>& b)    {
+        return ::aiColor4t<TReal> (min(a.r,b.r),min(a.g,b.g),min(a.b,b.b),min(a.a,b.a));
+    }
+
+    // std::max for aiColor4D
+    template <typename TReal>
+    inline ::aiColor4t<TReal> max (const ::aiColor4t<TReal>& a, const ::aiColor4t<TReal>& b)    {
+        return ::aiColor4t<TReal> (max(a.r,b.r),max(a.g,b.g),max(a.b,b.b),max(a.a,b.a));
+    }
+
+
+    // std::min for aiQuaterniont<TReal>
+    template <typename TReal>
+    inline ::aiQuaterniont<TReal> min (const ::aiQuaterniont<TReal>& a, const ::aiQuaterniont<TReal>& b)    {
+        return ::aiQuaterniont<TReal> (min(a.w,b.w),min(a.x,b.x),min(a.y,b.y),min(a.z,b.z));
+    }
+
+    // std::max for aiQuaterniont<TReal>
+    template <typename TReal>
+    inline ::aiQuaterniont<TReal> max (const ::aiQuaterniont<TReal>& a, const ::aiQuaterniont<TReal>& b)    {
+        return ::aiQuaterniont<TReal> (max(a.w,b.w),max(a.x,b.x),max(a.y,b.y),max(a.z,b.z));
+    }
+
+
+
+    // std::min for aiVectorKey
+    inline ::aiVectorKey min (const ::aiVectorKey& a, const ::aiVectorKey& b)   {
+        return ::aiVectorKey (min(a.mTime,b.mTime),min(a.mValue,b.mValue));
+    }
+
+    // std::max for aiVectorKey
+    inline ::aiVectorKey max (const ::aiVectorKey& a, const ::aiVectorKey& b)   {
+        return ::aiVectorKey (max(a.mTime,b.mTime),max(a.mValue,b.mValue));
+    }
+
+    // std::min for aiQuatKey
+    inline ::aiQuatKey min (const ::aiQuatKey& a, const ::aiQuatKey& b) {
+        return ::aiQuatKey (min(a.mTime,b.mTime),min(a.mValue,b.mValue));
+    }
+
+    // std::max for aiQuatKey
+    inline ::aiQuatKey max (const ::aiQuatKey& a, const ::aiQuatKey& b) {
+        return ::aiQuatKey (max(a.mTime,b.mTime),max(a.mValue,b.mValue));
+    }
+
+    // std::min for aiVertexWeight
+    inline ::aiVertexWeight min (const ::aiVertexWeight& a, const ::aiVertexWeight& b)  {
+        return ::aiVertexWeight (min(a.mVertexId,b.mVertexId),min(a.mWeight,b.mWeight));
+    }
+
+    // std::max for aiVertexWeight
+    inline ::aiVertexWeight max (const ::aiVertexWeight& a, const ::aiVertexWeight& b)  {
+        return ::aiVertexWeight (max(a.mVertexId,b.mVertexId),max(a.mWeight,b.mWeight));
+    }
+
+} // end namespace std
+#endif // !! C++
+
+namespace Assimp {
+
+// -------------------------------------------------------------------------------
+// Start points for ArrayBounds<T> for all supported Ts
+template <typename T>
+struct MinMaxChooser;
+
+template <> struct MinMaxChooser<float> {
+    void operator ()(float& min,float& max) {
+        max = -1e10f;
+        min =  1e10f;
+}};
+template <> struct MinMaxChooser<double> {
+    void operator ()(double& min,double& max) {
+        max = -1e10;
+        min =  1e10;
+}};
+template <> struct MinMaxChooser<unsigned int> {
+    void operator ()(unsigned int& min,unsigned int& max) {
+        max = 0;
+        min = (1u<<(sizeof(unsigned int)*8-1));
+}};
+
+template <typename T> struct MinMaxChooser< aiVector3t<T> > {
+    void operator ()(aiVector3t<T>& min,aiVector3t<T>& max) {
+        max = aiVector3t<T>(-1e10f,-1e10f,-1e10f);
+        min = aiVector3t<T>( 1e10f, 1e10f, 1e10f);
+}};
+template <typename T> struct MinMaxChooser< aiVector2t<T> > {
+    void operator ()(aiVector2t<T>& min,aiVector2t<T>& max) {
+        max = aiVector2t<T>(-1e10f,-1e10f);
+        min = aiVector2t<T>( 1e10f, 1e10f);
+    }};
+template <typename T> struct MinMaxChooser< aiColor4t<T> > {
+    void operator ()(aiColor4t<T>& min,aiColor4t<T>& max) {
+        max = aiColor4t<T>(-1e10f,-1e10f,-1e10f,-1e10f);
+        min = aiColor4t<T>( 1e10f, 1e10f, 1e10f, 1e10f);
+}};
+
+template <typename T> struct MinMaxChooser< aiQuaterniont<T> > {
+    void operator ()(aiQuaterniont<T>& min,aiQuaterniont<T>& max) {
+        max = aiQuaterniont<T>(-1e10f,-1e10f,-1e10f,-1e10f);
+        min = aiQuaterniont<T>( 1e10f, 1e10f, 1e10f, 1e10f);
+}};
+
+template <> struct MinMaxChooser<aiVectorKey> {
+    void operator ()(aiVectorKey& min,aiVectorKey& max) {
+        MinMaxChooser<double>()(min.mTime,max.mTime);
+        MinMaxChooser<aiVector3D>()(min.mValue,max.mValue);
+}};
+template <> struct MinMaxChooser<aiQuatKey> {
+    void operator ()(aiQuatKey& min,aiQuatKey& max) {
+        MinMaxChooser<double>()(min.mTime,max.mTime);
+        MinMaxChooser<aiQuaternion>()(min.mValue,max.mValue);
+}};
+
+template <> struct MinMaxChooser<aiVertexWeight> {
+    void operator ()(aiVertexWeight& min,aiVertexWeight& max) {
+        MinMaxChooser<unsigned int>()(min.mVertexId,max.mVertexId);
+        MinMaxChooser<float>()(min.mWeight,max.mWeight);
+}};
+
+// -------------------------------------------------------------------------------
+/** @brief Find the min/max values of an array of Ts
+ *  @param in Input array
+ *  @param size Number of elements to process
+ *  @param[out] min minimum value
+ *  @param[out] max maximum value
+ */
+template <typename T>
+inline void ArrayBounds(const T* in, unsigned int size, T& min, T& max)
+{
+    MinMaxChooser<T> ()(min,max);
+    for (unsigned int i = 0; i < size;++i) {
+        min = std::min(in[i],min);
+        max = std::max(in[i],max);
+    }
+}
+
+
+// -------------------------------------------------------------------------------
+/** Little helper function to calculate the quadratic difference
+ * of two colours.
+ * @param pColor1 First color
+ * @param pColor2 second color
+ * @return Quadratic color difference */
+inline ai_real GetColorDifference( const aiColor4D& pColor1, const aiColor4D& pColor2)
+{
+    const aiColor4D c (pColor1.r - pColor2.r, pColor1.g - pColor2.g, pColor1.b - pColor2.b, pColor1.a - pColor2.a);
+    return c.r*c.r + c.g*c.g + c.b*c.b + c.a*c.a;
+}
+
+
+// -------------------------------------------------------------------------------
+/** @brief Extract single strings from a list of identifiers
+ *  @param in Input string list.
+ *  @param out Receives a list of clean output strings
+ *  @sdee #AI_CONFIG_PP_OG_EXCLUDE_LIST */
+void ConvertListToStrings(const std::string& in, std::list<std::string>& out);
+
+
+// -------------------------------------------------------------------------------
+/** @brief Compute the AABB of a mesh after applying a given transform
+ *  @param mesh Input mesh
+ *  @param[out] min Receives minimum transformed vertex
+ *  @param[out] max Receives maximum transformed vertex
+ *  @param m Transformation matrix to be applied */
+void FindAABBTransformed (const aiMesh* mesh, aiVector3D& min, aiVector3D& max, const aiMatrix4x4& m);
+
+
+// -------------------------------------------------------------------------------
+/** @brief Helper function to determine the 'real' center of a mesh
+ *
+ *  That is the center of its axis-aligned bounding box.
+ *  @param mesh Input mesh
+ *  @param[out] min Minimum vertex of the mesh
+ *  @param[out] max maximum vertex of the mesh
+ *  @param[out] out Center point */
+void FindMeshCenter (aiMesh* mesh, aiVector3D& out, aiVector3D& min, aiVector3D& max);
+
+// -------------------------------------------------------------------------------
+/** @brief Helper function to determine the 'real' center of a scene
+ *
+ *  That is the center of its axis-aligned bounding box.
+ *  @param scene Input scene
+ *  @param[out] min Minimum vertex of the scene
+ *  @param[out] max maximum vertex of the scene
+ *  @param[out] out Center point */
+void FindSceneCenter (aiScene* scene, aiVector3D& out, aiVector3D& min, aiVector3D& max);
+
+
+// -------------------------------------------------------------------------------
+// Helper function to determine the 'real' center of a mesh after applying a given transform
+void FindMeshCenterTransformed (aiMesh* mesh, aiVector3D& out, aiVector3D& min,aiVector3D& max, const aiMatrix4x4& m);
+
+
+// -------------------------------------------------------------------------------
+// Helper function to determine the 'real' center of a mesh
+void FindMeshCenter (aiMesh* mesh, aiVector3D& out);
+
+
+// -------------------------------------------------------------------------------
+// Helper function to determine the 'real' center of a mesh after applying a given transform
+void FindMeshCenterTransformed (aiMesh* mesh, aiVector3D& out,const aiMatrix4x4& m);
+
+
+// -------------------------------------------------------------------------------
+// Compute a good epsilon value for position comparisons on a mesh
+ai_real ComputePositionEpsilon(const aiMesh* pMesh);
+
+
+// -------------------------------------------------------------------------------
+// Compute a good epsilon value for position comparisons on a array of meshes
+ai_real ComputePositionEpsilon(const aiMesh* const* pMeshes, size_t num);
+
+
+// -------------------------------------------------------------------------------
+// Compute an unique value for the vertex format of a mesh
+unsigned int GetMeshVFormatUnique(const aiMesh* pcMesh);
+
+
+// defs for ComputeVertexBoneWeightTable()
+typedef std::pair <unsigned int,float> PerVertexWeight;
+typedef std::vector <PerVertexWeight> VertexWeightTable;
+
+// -------------------------------------------------------------------------------
+// Compute a per-vertex bone weight table
+VertexWeightTable* ComputeVertexBoneWeightTable(const aiMesh* pMesh);
+
+
+// -------------------------------------------------------------------------------
+// Get a string for a given aiTextureType
+const char* TextureTypeToString(aiTextureType in);
+
+
+// -------------------------------------------------------------------------------
+// Get a string for a given aiTextureMapping
+const char* MappingTypeToString(aiTextureMapping in);
+
+
+// flags for MakeSubmesh()
+#define AI_SUBMESH_FLAGS_SANS_BONES 0x1
+
+// -------------------------------------------------------------------------------
+// Split a mesh given a list of faces to be contained in the sub mesh
+aiMesh* MakeSubmesh(const aiMesh *superMesh, const std::vector<unsigned int> &subMeshFaces, unsigned int subFlags);
+
+// -------------------------------------------------------------------------------
+// Utility postprocess step to share the spatial sort tree between
+// all steps which use it to speedup its computations.
+class ComputeSpatialSortProcess : public BaseProcess
+{
+    bool IsActive( unsigned int pFlags) const
+    {
+        return NULL != shared && 0 != (pFlags & (aiProcess_CalcTangentSpace |
+            aiProcess_GenNormals | aiProcess_JoinIdenticalVertices));
+    }
+
+    void Execute( aiScene* pScene)
+    {
+        typedef std::pair<SpatialSort, ai_real> _Type;
+        ASSIMP_LOG_DEBUG("Generate spatially-sorted vertex cache");
+
+        std::vector<_Type>* p = new std::vector<_Type>(pScene->mNumMeshes);
+        std::vector<_Type>::iterator it = p->begin();
+
+        for (unsigned int i = 0; i < pScene->mNumMeshes; ++i, ++it) {
+            aiMesh* mesh = pScene->mMeshes[i];
+            _Type& blubb = *it;
+            blubb.first.Fill(mesh->mVertices,mesh->mNumVertices,sizeof(aiVector3D));
+            blubb.second = ComputePositionEpsilon(mesh);
+        }
+
+        shared->AddProperty(AI_SPP_SPATIAL_SORT,p);
+    }
+};
+
+// -------------------------------------------------------------------------------
+// ... and the same again to cleanup the whole stuff
+class DestroySpatialSortProcess : public BaseProcess
+{
+    bool IsActive( unsigned int pFlags) const
+    {
+        return NULL != shared && 0 != (pFlags & (aiProcess_CalcTangentSpace |
+            aiProcess_GenNormals | aiProcess_JoinIdenticalVertices));
+    }
+
+    void Execute( aiScene* /*pScene*/)
+    {
+        shared->RemoveProperty(AI_SPP_SPATIAL_SORT);
+    }
+};
+
+
+
+} // ! namespace Assimp
+#endif // !! AI_PROCESS_HELPER_H_INCLUDED
diff --git a/thirdparty/assimp/code/RawLoader.cpp b/thirdparty/assimp/code/RawLoader.cpp
new file mode 100644
index 0000000000..d0da247e47
--- /dev/null
+++ b/thirdparty/assimp/code/RawLoader.cpp
@@ -0,0 +1,331 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  RawLoader.cpp
+ *  @brief Implementation of the RAW importer class
+ */
+
+
+#ifndef ASSIMP_BUILD_NO_RAW_IMPORTER
+
+// internal headers
+#include "RawLoader.h"
+#include <assimp/ParsingUtils.h>
+#include <assimp/fast_atof.h>
+#include <memory>
+#include <assimp/IOSystem.hpp>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+#include <assimp/importerdesc.h>
+
+using namespace Assimp;
+
+static const aiImporterDesc desc = {
+    "Raw Importer",
+    "",
+    "",
+    "",
+    aiImporterFlags_SupportTextFlavour,
+    0,
+    0,
+    0,
+    0,
+    "raw"
+};
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+RAWImporter::RAWImporter()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+RAWImporter::~RAWImporter()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the class can handle the format of the given file.
+bool RAWImporter::CanRead( const std::string& pFile, IOSystem* /*pIOHandler*/, bool /*checkSig*/) const
+{
+    return SimpleExtensionCheck(pFile,"raw");
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiImporterDesc* RAWImporter::GetInfo () const
+{
+    return &desc;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Imports the given file into the given scene structure.
+void RAWImporter::InternReadFile( const std::string& pFile,
+    aiScene* pScene, IOSystem* pIOHandler)
+{
+    std::unique_ptr<IOStream> file( pIOHandler->Open( pFile, "rb"));
+
+    // Check whether we can read from the file
+    if( file.get() == NULL) {
+        throw DeadlyImportError( "Failed to open RAW file " + pFile + ".");
+    }
+
+    // allocate storage and copy the contents of the file to a memory buffer
+    // (terminate it with zero)
+    std::vector<char> mBuffer2;
+    TextFileToBuffer(file.get(),mBuffer2);
+    const char* buffer = &mBuffer2[0];
+
+    // list of groups loaded from the file
+    std::vector< GroupInformation > outGroups(1,GroupInformation("<default>"));
+    std::vector< GroupInformation >::iterator curGroup = outGroups.begin();
+
+    // now read all lines
+    char line[4096];
+    while (GetNextLine(buffer,line))
+    {
+        // if the line starts with a non-numeric identifier, it marks
+        // the beginning of a new group
+        const char* sz = line;SkipSpaces(&sz);
+        if (IsLineEnd(*sz))continue;
+        if (!IsNumeric(*sz))
+        {
+            const char* sz2 = sz;
+            while (!IsSpaceOrNewLine(*sz2))++sz2;
+            const unsigned int length = (unsigned int)(sz2-sz);
+
+            // find an existing group with this name
+            for (std::vector< GroupInformation >::iterator it = outGroups.begin(), end = outGroups.end();
+                it != end;++it)
+            {
+                if (length == (*it).name.length() && !::strcmp(sz,(*it).name.c_str()))
+                {
+                    curGroup = it;sz2 = NULL;
+                    break;
+                }
+            }
+            if (sz2)
+            {
+                outGroups.push_back(GroupInformation(std::string(sz,length)));
+                curGroup = outGroups.end()-1;
+            }
+        }
+        else
+        {
+            // there can be maximally 12 floats plus an extra texture file name
+            float data[12];
+            unsigned int num;
+            for (num = 0; num < 12;++num)
+            {
+                if(!SkipSpaces(&sz) || !IsNumeric(*sz))break;
+                sz = fast_atoreal_move<float>(sz,data[num]);
+            }
+            if (num != 12 && num != 9)
+            {
+                ASSIMP_LOG_ERROR("A line may have either 9 or 12 floats and an optional texture");
+                continue;
+            }
+
+            MeshInformation* output = NULL;
+
+            const char* sz2 = sz;
+            unsigned int length;
+            if (!IsLineEnd(*sz))
+            {
+                while (!IsSpaceOrNewLine(*sz2))++sz2;
+                length = (unsigned int)(sz2-sz);
+            }
+            else if (9 == num)
+            {
+                sz = "%default%";
+                length = 9;
+            }
+            else
+            {
+                sz = "";
+                length = 0;
+            }
+
+            // search in the list of meshes whether we have one with this texture
+            for (auto &mesh : (*curGroup).meshes)
+            {
+                if (length == mesh.name.length() && (length ? !::strcmp(sz, mesh.name.c_str()) : true))
+                {
+                    output = &mesh;
+                    break;
+                }
+            }
+            // if we don't have the mesh, create it
+            if (!output)
+            {
+                (*curGroup).meshes.push_back(MeshInformation(std::string(sz,length)));
+                output = &((*curGroup).meshes.back());
+            }
+            if (12 == num)
+            {
+                aiColor4D v(data[0],data[1],data[2],1.0f);
+                output->colors.push_back(v);
+                output->colors.push_back(v);
+                output->colors.push_back(v);
+
+                output->vertices.push_back(aiVector3D(data[3],data[4],data[5]));
+                output->vertices.push_back(aiVector3D(data[6],data[7],data[8]));
+                output->vertices.push_back(aiVector3D(data[9],data[10],data[11]));
+            }
+            else
+            {
+                output->vertices.push_back(aiVector3D(data[0],data[1],data[2]));
+                output->vertices.push_back(aiVector3D(data[3],data[4],data[5]));
+                output->vertices.push_back(aiVector3D(data[6],data[7],data[8]));
+            }
+        }
+    }
+
+    pScene->mRootNode = new aiNode();
+    pScene->mRootNode->mName.Set("<RawRoot>");
+
+    // count the number of valid groups
+    // (meshes can't be empty)
+    for (auto & outGroup : outGroups)
+    {
+        if (!outGroup.meshes.empty())
+        {
+            ++pScene->mRootNode->mNumChildren;
+            pScene->mNumMeshes += (unsigned int) outGroup.meshes.size();
+        }
+    }
+
+    if (!pScene->mNumMeshes)
+    {
+        throw DeadlyImportError("RAW: No meshes loaded. The file seems to be corrupt or empty.");
+    }
+
+    pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
+    aiNode** cc;
+    if (1 == pScene->mRootNode->mNumChildren)
+    {
+        cc = &pScene->mRootNode;
+        pScene->mRootNode->mNumChildren = 0;
+    } else {
+        cc = new aiNode*[pScene->mRootNode->mNumChildren];
+        memset(cc, 0, sizeof(aiNode*) * pScene->mRootNode->mNumChildren);
+        pScene->mRootNode->mChildren = cc;
+    }
+
+    pScene->mNumMaterials = pScene->mNumMeshes;
+    aiMaterial** mats = pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
+
+    unsigned int meshIdx = 0;
+    for (auto & outGroup : outGroups)
+    {
+        if (outGroup.meshes.empty())continue;
+
+        aiNode* node;
+        if (pScene->mRootNode->mNumChildren)
+        {
+            node = *cc = new aiNode();
+            node->mParent = pScene->mRootNode;
+        }
+        else node = *cc;
+        node->mName.Set(outGroup.name);
+
+        // add all meshes
+        node->mNumMeshes = (unsigned int) outGroup.meshes.size();
+        unsigned int* pi = node->mMeshes = new unsigned int[ node->mNumMeshes ];
+        for (std::vector< MeshInformation >::iterator it2 = outGroup.meshes.begin(),
+            end2 = outGroup.meshes.end(); it2 != end2; ++it2)
+        {
+            ai_assert(!(*it2).vertices.empty());
+
+            // allocate the mesh
+            *pi++ = meshIdx;
+            aiMesh* mesh = pScene->mMeshes[meshIdx] = new aiMesh();
+            mesh->mMaterialIndex = meshIdx++;
+
+            mesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
+
+            // allocate storage for the vertex components and copy them
+            mesh->mNumVertices = (unsigned int)(*it2).vertices.size();
+            mesh->mVertices = new aiVector3D[ mesh->mNumVertices ];
+            ::memcpy(mesh->mVertices,&(*it2).vertices[0],sizeof(aiVector3D)*mesh->mNumVertices);
+
+            if ((*it2).colors.size())
+            {
+                ai_assert((*it2).colors.size() == mesh->mNumVertices);
+
+                mesh->mColors[0] = new aiColor4D[ mesh->mNumVertices ];
+                ::memcpy(mesh->mColors[0],&(*it2).colors[0],sizeof(aiColor4D)*mesh->mNumVertices);
+            }
+
+            // generate triangles
+            ai_assert(0 == mesh->mNumVertices % 3);
+            aiFace* fc = mesh->mFaces = new aiFace[ mesh->mNumFaces = mesh->mNumVertices/3 ];
+            aiFace* const fcEnd = fc + mesh->mNumFaces;
+            unsigned int n = 0;
+            while (fc != fcEnd)
+            {
+                aiFace& f = *fc++;
+                f.mIndices = new unsigned int[f.mNumIndices = 3];
+                for (unsigned int m = 0; m < 3;++m)
+                    f.mIndices[m] = n++;
+            }
+
+            // generate a material for the mesh
+            aiMaterial* mat = new aiMaterial();
+
+            aiColor4D clr(1.0f,1.0f,1.0f,1.0f);
+            if ("%default%" == (*it2).name) // a gray default material
+            {
+                clr.r = clr.g = clr.b = 0.6f;
+            }
+            else if ((*it2).name.length() > 0) // a texture
+            {
+                aiString s;
+                s.Set((*it2).name);
+                mat->AddProperty(&s,AI_MATKEY_TEXTURE_DIFFUSE(0));
+            }
+            mat->AddProperty<aiColor4D>(&clr,1,AI_MATKEY_COLOR_DIFFUSE);
+            *mats++ = mat;
+        }
+    }
+}
+
+#endif // !! ASSIMP_BUILD_NO_RAW_IMPORTER
diff --git a/thirdparty/assimp/code/RemoveComments.cpp b/thirdparty/assimp/code/RemoveComments.cpp
new file mode 100644
index 0000000000..91700a7699
--- /dev/null
+++ b/thirdparty/assimp/code/RemoveComments.cpp
@@ -0,0 +1,113 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  RemoveComments.cpp
+ *  @brief Defines the CommentRemover utility class
+ */
+
+#include <assimp/RemoveComments.h>
+#include <assimp/ParsingUtils.h>
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------------------------
+// Remove line comments from a file
+void CommentRemover::RemoveLineComments(const char* szComment,
+    char* szBuffer, char chReplacement /* = ' ' */)
+{
+    // validate parameters
+    ai_assert(NULL != szComment && NULL != szBuffer && *szComment);
+
+    const size_t len = strlen(szComment);
+    while (*szBuffer)   {
+
+        // skip over quotes
+        if (*szBuffer == '\"' || *szBuffer == '\'')
+            while (*szBuffer++ && *szBuffer != '\"' && *szBuffer != '\'');
+
+        if (!strncmp(szBuffer,szComment,len)) {
+            while (!IsLineEnd(*szBuffer))
+                *szBuffer++ = chReplacement;
+
+            if (!*szBuffer) {
+                break;
+            }
+        }
+        ++szBuffer;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Remove multi-line comments from a file
+void CommentRemover::RemoveMultiLineComments(const char* szCommentStart,
+    const char* szCommentEnd,char* szBuffer,
+    char chReplacement)
+{
+    // validate parameters
+    ai_assert(NULL != szCommentStart && NULL != szCommentEnd &&
+        NULL != szBuffer && *szCommentStart && *szCommentEnd);
+
+    const size_t len  = strlen(szCommentEnd);
+    const size_t len2 = strlen(szCommentStart);
+
+    while (*szBuffer)   {
+        // skip over quotes
+        if (*szBuffer == '\"' || *szBuffer == '\'')
+            while (*szBuffer++ && *szBuffer != '\"' && *szBuffer != '\'');
+
+        if (!strncmp(szBuffer,szCommentStart,len2))  {
+            while (*szBuffer) {
+                if (!::strncmp(szBuffer,szCommentEnd,len)) {
+                    for (unsigned int i = 0; i < len;++i)
+                        *szBuffer++ = chReplacement;
+
+                    break;
+                }
+            *szBuffer++ = chReplacement;
+            }
+            continue;
+        }
+        ++szBuffer;
+    }
+}
+
+} // !! Assimp
diff --git a/thirdparty/assimp/code/RemoveRedundantMaterials.cpp b/thirdparty/assimp/code/RemoveRedundantMaterials.cpp
new file mode 100644
index 0000000000..632bdca3fe
--- /dev/null
+++ b/thirdparty/assimp/code/RemoveRedundantMaterials.cpp
@@ -0,0 +1,221 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file RemoveRedundantMaterials.cpp
+ *  @brief Implementation of the "RemoveRedundantMaterials" post processing step
+*/
+
+// internal headers
+
+#include "RemoveRedundantMaterials.h"
+#include <assimp/ParsingUtils.h>
+#include "ProcessHelper.h"
+#include "MaterialSystem.h"
+#include <stdio.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+RemoveRedundantMatsProcess::RemoveRedundantMatsProcess()
+: configFixedMaterials() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+RemoveRedundantMatsProcess::~RemoveRedundantMatsProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool RemoveRedundantMatsProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_RemoveRedundantMaterials) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup import properties
+void RemoveRedundantMatsProcess::SetupProperties(const Importer* pImp)
+{
+    // Get value of AI_CONFIG_PP_RRM_EXCLUDE_LIST
+    configFixedMaterials = pImp->GetPropertyString(AI_CONFIG_PP_RRM_EXCLUDE_LIST,"");
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void RemoveRedundantMatsProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("RemoveRedundantMatsProcess begin");
+
+    unsigned int redundantRemoved = 0, unreferencedRemoved = 0;
+    if (pScene->mNumMaterials)
+    {
+        // Find out which materials are referenced by meshes
+        std::vector<bool> abReferenced(pScene->mNumMaterials,false);
+        for (unsigned int i = 0;i < pScene->mNumMeshes;++i)
+            abReferenced[pScene->mMeshes[i]->mMaterialIndex] = true;
+
+        // If a list of materials to be excluded was given, match the list with
+        // our imported materials and 'salt' all positive matches to ensure that
+        // we get unique hashes later.
+        if (configFixedMaterials.length()) {
+
+            std::list<std::string> strings;
+            ConvertListToStrings(configFixedMaterials,strings);
+
+            for (unsigned int i = 0; i < pScene->mNumMaterials;++i) {
+                aiMaterial* mat = pScene->mMaterials[i];
+
+                aiString name;
+                mat->Get(AI_MATKEY_NAME,name);
+
+                if (name.length) {
+                    std::list<std::string>::const_iterator it = std::find(strings.begin(), strings.end(), name.data);
+                    if (it != strings.end()) {
+
+                        // Our brilliant 'salt': A single material property with ~ as first
+                        // character to mark it as internal and temporary.
+                        const int dummy = 1;
+                        ((aiMaterial*)mat)->AddProperty(&dummy,1,"~RRM.UniqueMaterial",0,0);
+
+                        // Keep this material even if no mesh references it
+                        abReferenced[i] = true;
+                        ASSIMP_LOG_DEBUG_F( "Found positive match in exclusion list: \'", name.data, "\'");
+                    }
+                }
+            }
+        }
+
+        // TODO: re-implement this algorithm to work in-place
+        unsigned int *aiMappingTable = new unsigned int[pScene->mNumMaterials];
+        for ( unsigned int i=0; i<pScene->mNumMaterials; i++ ) {
+            aiMappingTable[ i ] = 0;
+        }
+        unsigned int iNewNum = 0;
+
+        // Iterate through all materials and calculate a hash for them
+        // store all hashes in a list and so a quick search whether
+        // we do already have a specific hash. This allows us to
+        // determine which materials are identical.
+        uint32_t *aiHashes = new uint32_t[ pScene->mNumMaterials ];;
+        for (unsigned int i = 0; i < pScene->mNumMaterials;++i)
+        {
+            // No mesh is referencing this material, remove it.
+            if (!abReferenced[i]) {
+                ++unreferencedRemoved;
+                delete pScene->mMaterials[i];
+                pScene->mMaterials[i] = nullptr;
+                continue;
+            }
+
+            // Check all previously mapped materials for a matching hash.
+            // On a match we can delete this material and just make it ref to the same index.
+            uint32_t me = aiHashes[i] = ComputeMaterialHash(pScene->mMaterials[i]);
+            for (unsigned int a = 0; a < i;++a)
+            {
+                if (abReferenced[a] && me == aiHashes[a]) {
+                    ++redundantRemoved;
+                    me = 0;
+                    aiMappingTable[i] = aiMappingTable[a];
+                    delete pScene->mMaterials[i];
+                    pScene->mMaterials[i] = nullptr;
+                    break;
+                }
+            }
+            // This is a new material that is referenced, add to the map.
+            if (me) {
+                aiMappingTable[i] = iNewNum++;
+            }
+        }
+        // If the new material count differs from the original,
+        // we need to rebuild the material list and remap mesh material indexes.
+        if (iNewNum != pScene->mNumMaterials) {
+            ai_assert(iNewNum > 0);
+            aiMaterial** ppcMaterials = new aiMaterial*[iNewNum];
+            ::memset(ppcMaterials,0,sizeof(void*)*iNewNum);
+            for (unsigned int p = 0; p < pScene->mNumMaterials;++p)
+            {
+                // if the material is not referenced ... remove it
+                if (!abReferenced[p]) {
+                    continue;
+                }
+
+                // generate new names for modified materials that had no names
+                const unsigned int idx = aiMappingTable[p];
+                if (ppcMaterials[idx]) {
+                    aiString sz;
+                    if( ppcMaterials[idx]->Get(AI_MATKEY_NAME, sz) != AI_SUCCESS ) {
+                        sz.length = ::ai_snprintf(sz.data,MAXLEN,"JoinedMaterial_#%u",p);
+                        ((aiMaterial*)ppcMaterials[idx])->AddProperty(&sz,AI_MATKEY_NAME);
+                    }
+                } else {
+                    ppcMaterials[idx] = pScene->mMaterials[p];
+                }
+            }
+            // update all material indices
+            for (unsigned int p = 0; p < pScene->mNumMeshes;++p) {
+                aiMesh* mesh = pScene->mMeshes[p];
+                ai_assert( NULL!=mesh );
+                mesh->mMaterialIndex = aiMappingTable[mesh->mMaterialIndex];
+            }
+            // delete the old material list
+            delete[] pScene->mMaterials;
+            pScene->mMaterials = ppcMaterials;
+            pScene->mNumMaterials = iNewNum;
+        }
+        // delete temporary storage
+        delete[] aiHashes;
+        delete[] aiMappingTable;
+    }
+    if (redundantRemoved == 0 && unreferencedRemoved == 0)
+    {
+        ASSIMP_LOG_DEBUG("RemoveRedundantMatsProcess finished ");
+    }
+    else
+    {
+        ASSIMP_LOG_INFO_F("RemoveRedundantMatsProcess finished. Removed ", redundantRemoved, " redundant and ", 
+            unreferencedRemoved, " unused materials.");
+    }
+}
diff --git a/thirdparty/assimp/code/RemoveRedundantMaterials.h b/thirdparty/assimp/code/RemoveRedundantMaterials.h
new file mode 100644
index 0000000000..dbd4d44cc0
--- /dev/null
+++ b/thirdparty/assimp/code/RemoveRedundantMaterials.h
@@ -0,0 +1,107 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file RemoveRedundantMaterials.h
+ *  @brief Defines a post processing step to remove redundant materials
+ */
+#ifndef AI_REMOVEREDUNDANTMATERIALS_H_INC
+#define AI_REMOVEREDUNDANTMATERIALS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+class RemoveRedundantMatsTest;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** RemoveRedundantMatsProcess: Post-processing step to remove redundant
+ *  materials from the imported scene.
+ */
+class ASSIMP_API RemoveRedundantMatsProcess : public BaseProcess
+{
+public:
+    /// The default class constructor.
+    RemoveRedundantMatsProcess();
+
+    /// The class destructor.
+    ~RemoveRedundantMatsProcess();
+
+public:
+    // -------------------------------------------------------------------
+    // Check whether step is active
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    // Execute step on a given scene
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    // Setup import settings
+    void SetupProperties(const Importer* pImp);
+
+
+    // -------------------------------------------------------------------
+    /** @brief Set list of fixed (unmutable) materials
+     *  @param fixed See #AI_CONFIG_PP_RRM_EXCLUDE_LIST
+     */
+    void SetFixedMaterialsString(const std::string& fixed = "") {
+        configFixedMaterials = fixed;
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Get list of fixed (unmutable) materials
+     *  @return See #AI_CONFIG_PP_RRM_EXCLUDE_LIST
+     */
+    const std::string& GetFixedMaterialsString() const {
+        return configFixedMaterials;
+    }
+
+private:
+
+    //! Configuration option: list of all fixed materials
+    std::string configFixedMaterials;
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_REMOVEREDUNDANTMATERIALS_H_INC
diff --git a/thirdparty/assimp/code/RemoveVCProcess.cpp b/thirdparty/assimp/code/RemoveVCProcess.cpp
new file mode 100644
index 0000000000..99fd47a3aa
--- /dev/null
+++ b/thirdparty/assimp/code/RemoveVCProcess.cpp
@@ -0,0 +1,337 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file Implementation of the post processing step to remove
+ *        any parts of the mesh structure from the imported data.
+*/
+
+
+#include "RemoveVCProcess.h"
+#include <assimp/postprocess.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+RemoveVCProcess::RemoveVCProcess() :
+    configDeleteFlags()
+  , mScene()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+RemoveVCProcess::~RemoveVCProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool RemoveVCProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_RemoveComponent) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Small helper function to delete all elements in a T** aray using delete
+template <typename T>
+inline void ArrayDelete(T**& in, unsigned int& num)
+{
+    for (unsigned int i = 0; i < num; ++i)
+        delete in[i];
+
+    delete[] in;
+    in = NULL;
+    num = 0;
+}
+
+#if 0
+// ------------------------------------------------------------------------------------------------
+// Updates the node graph - removes all nodes which have the "remove" flag set and the
+// "don't remove" flag not set. Nodes with meshes are never deleted.
+bool UpdateNodeGraph(aiNode* node,std::list<aiNode*>& childsOfParent,bool root)
+{
+    bool b = false;
+
+    std::list<aiNode*> mine;
+    for (unsigned int i = 0; i < node->mNumChildren;++i)
+    {
+        if(UpdateNodeGraph(node->mChildren[i],mine,false))
+            b = true;
+    }
+
+    // somewhat tricky ... mNumMeshes must be originally 0 and MSB2 may not be set,
+    // so we can do a simple comparison against MSB here
+    if (!root && AI_RC_UINT_MSB == node->mNumMeshes )
+    {
+        // this node needs to be removed
+        if(node->mNumChildren)
+        {
+            childsOfParent.insert(childsOfParent.end(),mine.begin(),mine.end());
+
+            // set all children to NULL to make sure they are not deleted when we delete ourself
+            for (unsigned int i = 0; i < node->mNumChildren;++i)
+                node->mChildren[i] = NULL;
+        }
+        b = true;
+        delete node;
+    }
+    else
+    {
+        AI_RC_UNMASK(node->mNumMeshes);
+        childsOfParent.push_back(node);
+
+        if (b)
+        {
+            // reallocate the array of our children here
+            node->mNumChildren = (unsigned int)mine.size();
+            aiNode** const children = new aiNode*[mine.size()];
+            aiNode** ptr = children;
+
+            for (std::list<aiNode*>::iterator it = mine.begin(), end = mine.end();
+                 it != end; ++it)
+            {
+                *ptr++ = *it;
+            }
+            delete[] node->mChildren;
+            node->mChildren = children;
+            return false;
+        }
+    }
+    return b;
+}
+#endif
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void RemoveVCProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("RemoveVCProcess begin");
+    bool bHas = false; //,bMasked = false;
+
+    mScene = pScene;
+
+    // handle animations
+    if ( configDeleteFlags & aiComponent_ANIMATIONS)
+    {
+
+        bHas = true;
+        ArrayDelete(pScene->mAnimations,pScene->mNumAnimations);
+    }
+
+    // handle textures
+    if ( configDeleteFlags & aiComponent_TEXTURES)
+    {
+        bHas = true;
+        ArrayDelete(pScene->mTextures,pScene->mNumTextures);
+    }
+
+    // handle materials
+    if ( configDeleteFlags & aiComponent_MATERIALS && pScene->mNumMaterials)
+    {
+        bHas = true;
+        for (unsigned int i = 1;i < pScene->mNumMaterials;++i)
+            delete pScene->mMaterials[i];
+
+        pScene->mNumMaterials = 1;
+        aiMaterial* helper = (aiMaterial*) pScene->mMaterials[0];
+        ai_assert(NULL != helper);
+        helper->Clear();
+
+        // gray
+        aiColor3D clr(0.6f,0.6f,0.6f);
+        helper->AddProperty(&clr,1,AI_MATKEY_COLOR_DIFFUSE);
+
+        // add a small ambient color value
+        clr = aiColor3D(0.05f,0.05f,0.05f);
+        helper->AddProperty(&clr,1,AI_MATKEY_COLOR_AMBIENT);
+
+        aiString s;
+        s.Set("Dummy_MaterialsRemoved");
+        helper->AddProperty(&s,AI_MATKEY_NAME);
+    }
+
+    // handle light sources
+    if ( configDeleteFlags & aiComponent_LIGHTS)
+    {
+        bHas =  true;
+        ArrayDelete(pScene->mLights,pScene->mNumLights);
+    }
+
+    // handle camneras
+    if ( configDeleteFlags & aiComponent_CAMERAS)
+    {
+        bHas = true;
+        ArrayDelete(pScene->mCameras,pScene->mNumCameras);
+    }
+
+    // handle meshes
+    if (configDeleteFlags & aiComponent_MESHES)
+    {
+        bHas = true;
+        ArrayDelete(pScene->mMeshes,pScene->mNumMeshes);
+    }
+    else
+    {
+        for( unsigned int a = 0; a < pScene->mNumMeshes; a++)
+        {
+            if( ProcessMesh( pScene->mMeshes[a]))
+                bHas = true;
+        }
+    }
+
+
+    // now check whether the result is still a full scene
+    if (!pScene->mNumMeshes || !pScene->mNumMaterials)
+    {
+        pScene->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
+        ASSIMP_LOG_DEBUG("Setting AI_SCENE_FLAGS_INCOMPLETE flag");
+
+        // If we have no meshes anymore we should also clear another flag ...
+        if (!pScene->mNumMeshes)
+            pScene->mFlags &= ~AI_SCENE_FLAGS_NON_VERBOSE_FORMAT;
+    }
+
+    if (bHas) {
+        ASSIMP_LOG_INFO("RemoveVCProcess finished. Data structure cleanup has been done.");
+    } else {
+        ASSIMP_LOG_DEBUG("RemoveVCProcess finished. Nothing to be done ...");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup configuration properties for the step
+void RemoveVCProcess::SetupProperties(const Importer* pImp)
+{
+    configDeleteFlags = pImp->GetPropertyInteger(AI_CONFIG_PP_RVC_FLAGS,0x0);
+    if (!configDeleteFlags)
+    {
+        ASSIMP_LOG_WARN("RemoveVCProcess: AI_CONFIG_PP_RVC_FLAGS is zero.");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+bool RemoveVCProcess::ProcessMesh(aiMesh* pMesh)
+{
+    bool ret = false;
+
+    // if all materials have been deleted let the material
+    // index of the mesh point to the created default material
+    if ( configDeleteFlags & aiComponent_MATERIALS)
+        pMesh->mMaterialIndex = 0;
+
+    // handle normals
+    if (configDeleteFlags & aiComponent_NORMALS && pMesh->mNormals)
+    {
+        delete[] pMesh->mNormals;
+        pMesh->mNormals = NULL;
+        ret = true;
+    }
+
+    // handle tangents and bitangents
+    if (configDeleteFlags & aiComponent_TANGENTS_AND_BITANGENTS && pMesh->mTangents)
+    {
+        delete[] pMesh->mTangents;
+        pMesh->mTangents = NULL;
+
+        delete[] pMesh->mBitangents;
+        pMesh->mBitangents = NULL;
+        ret = true;
+    }
+
+    // handle texture coordinates
+    bool b = (0 != (configDeleteFlags & aiComponent_TEXCOORDS));
+    for (unsigned int i = 0, real = 0; real < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++real)
+    {
+        if (!pMesh->mTextureCoords[i])break;
+        if (configDeleteFlags & aiComponent_TEXCOORDSn(real) || b)
+        {
+            delete [] pMesh->mTextureCoords[i];
+            pMesh->mTextureCoords[i] = NULL;
+            ret = true;
+
+            if (!b)
+            {
+                // collapse the rest of the array
+                for (unsigned int a = i+1; a < AI_MAX_NUMBER_OF_TEXTURECOORDS;++a)
+                    pMesh->mTextureCoords[a-1] = pMesh->mTextureCoords[a];
+
+                pMesh->mTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS-1] = NULL;
+                continue;
+            }
+        }
+        ++i;
+    }
+
+    // handle vertex colors
+    b = (0 != (configDeleteFlags & aiComponent_COLORS));
+    for (unsigned int i = 0, real = 0; real < AI_MAX_NUMBER_OF_COLOR_SETS; ++real)
+    {
+        if (!pMesh->mColors[i])break;
+        if (configDeleteFlags & aiComponent_COLORSn(i) || b)
+        {
+            delete [] pMesh->mColors[i];
+            pMesh->mColors[i] = NULL;
+            ret = true;
+
+            if (!b)
+            {
+                // collapse the rest of the array
+                for (unsigned int a = i+1; a < AI_MAX_NUMBER_OF_COLOR_SETS;++a)
+                    pMesh->mColors[a-1] = pMesh->mColors[a];
+
+                pMesh->mColors[AI_MAX_NUMBER_OF_COLOR_SETS-1] = NULL;
+                continue;
+            }
+        }
+        ++i;
+    }
+
+    // handle bones
+    if (configDeleteFlags & aiComponent_BONEWEIGHTS && pMesh->mBones)
+    {
+        ArrayDelete(pMesh->mBones,pMesh->mNumBones);
+        ret = true;
+    }
+    return ret;
+}
diff --git a/thirdparty/assimp/code/RemoveVCProcess.h b/thirdparty/assimp/code/RemoveVCProcess.h
new file mode 100644
index 0000000000..617d7b9b20
--- /dev/null
+++ b/thirdparty/assimp/code/RemoveVCProcess.h
@@ -0,0 +1,123 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to remove specific parts of the scene */
+#ifndef AI_REMOVEVCPROCESS_H_INCLUDED
+#define AI_REMOVEVCPROCESS_H_INCLUDED
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+class RemoveVCProcessTest;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** RemoveVCProcess: Class to exclude specific parts of the data structure
+ *  from further processing by removing them,
+*/
+class ASSIMP_API RemoveVCProcess : public BaseProcess {
+public:
+    /// The default class constructor.
+    RemoveVCProcess();
+
+    /// The class destructor.
+    ~RemoveVCProcess();
+
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+    * @param pFlags The processing flags the importer was called with. A bitwise
+    *   combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    virtual void SetupProperties(const Importer* pImp);
+
+    // -------------------------------------------------------------------
+    /** Manually setup the configuration flags for the step
+     *
+     *  @param Bitwise combination of the #aiComponent enumerated values.
+    */
+    void SetDeleteFlags(unsigned int f)
+    {
+        configDeleteFlags = f;
+    }
+
+    // -------------------------------------------------------------------
+    /** Query the current configuration.
+    */
+    unsigned int GetDeleteFlags() const
+    {
+        return configDeleteFlags;
+    }
+
+private:
+
+    bool ProcessMesh (aiMesh* pcMesh);
+
+    /** Configuration flag
+     */
+    unsigned int configDeleteFlags;
+
+    /** The scene we're working with
+     */
+    aiScene* mScene;
+};
+
+// ---------------------------------------------------------------------------
+
+} // end of namespace Assimp
+
+#endif // !!AI_REMOVEVCPROCESS_H_INCLUDED
diff --git a/thirdparty/assimp/code/SGSpatialSort.cpp b/thirdparty/assimp/code/SGSpatialSort.cpp
new file mode 100644
index 0000000000..120070b0aa
--- /dev/null
+++ b/thirdparty/assimp/code/SGSpatialSort.cpp
@@ -0,0 +1,168 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the helper class to quickly find
+vertices close to a given position. Special implementation for
+the 3ds loader handling smooth groups correctly  */
+
+#include <assimp/SGSpatialSort.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+SGSpatialSort::SGSpatialSort()
+{
+    // define the reference plane. We choose some arbitrary vector away from all basic axises
+    // in the hope that no model spreads all its vertices along this plane.
+    mPlaneNormal.Set( 0.8523f, 0.34321f, 0.5736f);
+    mPlaneNormal.Normalize();
+}
+// ------------------------------------------------------------------------------------------------
+// Destructor
+SGSpatialSort::~SGSpatialSort()
+{
+    // nothing to do here, everything destructs automatically
+}
+// ------------------------------------------------------------------------------------------------
+void SGSpatialSort::Add(const aiVector3D& vPosition, unsigned int index,
+    unsigned int smoothingGroup)
+{
+    // store position by index and distance
+    float distance = vPosition * mPlaneNormal;
+    mPositions.push_back( Entry( index, vPosition,
+        distance, smoothingGroup));
+}
+// ------------------------------------------------------------------------------------------------
+void SGSpatialSort::Prepare()
+{
+    // now sort the array ascending by distance.
+    std::sort( this->mPositions.begin(), this->mPositions.end());
+}
+// ------------------------------------------------------------------------------------------------
+// Returns an iterator for all positions close to the given position.
+void SGSpatialSort::FindPositions( const aiVector3D& pPosition,
+    uint32_t pSG,
+    float pRadius,
+    std::vector<unsigned int>& poResults,
+    bool exactMatch /*= false*/) const
+{
+    float dist = pPosition * mPlaneNormal;
+    float minDist = dist - pRadius, maxDist = dist + pRadius;
+
+    // clear the array
+    poResults.clear();
+
+    // quick check for positions outside the range
+    if( mPositions.empty() )
+        return;
+    if( maxDist < mPositions.front().mDistance)
+        return;
+    if( minDist > mPositions.back().mDistance)
+        return;
+
+    // do a binary search for the minimal distance to start the iteration there
+    unsigned int index = (unsigned int)mPositions.size() / 2;
+    unsigned int binaryStepSize = (unsigned int)mPositions.size() / 4;
+    while( binaryStepSize > 1)
+    {
+        if( mPositions[index].mDistance < minDist)
+            index += binaryStepSize;
+        else
+            index -= binaryStepSize;
+
+        binaryStepSize /= 2;
+    }
+
+    // depending on the direction of the last step we need to single step a bit back or forth
+    // to find the actual beginning element of the range
+    while( index > 0 && mPositions[index].mDistance > minDist)
+        index--;
+    while( index < (mPositions.size() - 1) && mPositions[index].mDistance < minDist)
+        index++;
+
+    // Mow start iterating from there until the first position lays outside of the distance range.
+    // Add all positions inside the distance range within the given radius to the result aray
+
+    float squareEpsilon = pRadius * pRadius;
+    std::vector<Entry>::const_iterator it  = mPositions.begin() + index;
+    std::vector<Entry>::const_iterator end = mPositions.end();
+
+    if (exactMatch)
+    {
+        while( it->mDistance < maxDist)
+        {
+            if((it->mPosition - pPosition).SquareLength() < squareEpsilon && it->mSmoothGroups == pSG)
+            {
+                poResults.push_back( it->mIndex);
+            }
+            ++it;
+            if( end == it )break;
+        }
+    }
+    else
+    {
+        // if the given smoothing group is 0, we'll return all surrounding vertices
+        if (!pSG)
+        {
+            while( it->mDistance < maxDist)
+            {
+                if((it->mPosition - pPosition).SquareLength() < squareEpsilon)
+                    poResults.push_back( it->mIndex);
+                ++it;
+                if( end == it)break;
+            }
+        }
+        else while( it->mDistance < maxDist)
+        {
+            if((it->mPosition - pPosition).SquareLength() < squareEpsilon &&
+                (it->mSmoothGroups & pSG || !it->mSmoothGroups))
+            {
+                poResults.push_back( it->mIndex);
+            }
+            ++it;
+            if( end == it)break;
+        }
+    }
+}
+
+
diff --git a/thirdparty/assimp/code/ScaleProcess.cpp b/thirdparty/assimp/code/ScaleProcess.cpp
new file mode 100644
index 0000000000..6d458c4b11
--- /dev/null
+++ b/thirdparty/assimp/code/ScaleProcess.cpp
@@ -0,0 +1,103 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS
+
+#include "ScaleProcess.h"
+
+#include <assimp/scene.h>
+#include <assimp/postprocess.h>
+
+namespace Assimp {
+
+ScaleProcess::ScaleProcess()
+: BaseProcess()
+, mScale( AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT ) {
+    // empty
+}
+
+ScaleProcess::~ScaleProcess() {
+    // empty
+}
+
+void ScaleProcess::setScale( ai_real scale ) {
+    mScale = scale;
+}
+
+ai_real ScaleProcess::getScale() const {
+    return mScale;
+}
+
+bool ScaleProcess::IsActive( unsigned int pFlags ) const {
+    return ( pFlags & aiProcess_GlobalScale ) != 0;
+}
+
+void ScaleProcess::SetupProperties( const Importer* pImp ) {
+    mScale = pImp->GetPropertyFloat( AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY, 0 );
+}
+
+void ScaleProcess::Execute( aiScene* pScene ) {
+    if ( nullptr == pScene ) {
+        return;
+    }
+
+    if ( nullptr == pScene->mRootNode ) {
+        return;
+    }
+
+    traverseNodes( pScene->mRootNode );
+}
+
+void ScaleProcess::traverseNodes( aiNode *node ) {
+    applyScaling( node );
+}
+
+void ScaleProcess::applyScaling( aiNode *currentNode ) {
+    if ( nullptr != currentNode ) {
+        currentNode->mTransformation.a1 = currentNode->mTransformation.a1 * mScale;
+        currentNode->mTransformation.b2 = currentNode->mTransformation.b2 * mScale;
+        currentNode->mTransformation.c3 = currentNode->mTransformation.c3 * mScale;
+    }
+}
+
+} // Namespace Assimp
+
+#endif // !! ASSIMP_BUILD_NO_GLOBALSCALE_PROCESS
diff --git a/thirdparty/assimp/code/ScaleProcess.h b/thirdparty/assimp/code/ScaleProcess.h
new file mode 100644
index 0000000000..55146ae064
--- /dev/null
+++ b/thirdparty/assimp/code/ScaleProcess.h
@@ -0,0 +1,88 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+
+#include "BaseProcess.h"
+
+struct aiNode;
+
+#if (!defined AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT)
+#   define AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT  1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** ScaleProcess: Class to rescale the whole model.
+*/
+class ASSIMP_API ScaleProcess : public BaseProcess {
+public:
+    /// The default class constructor.
+    ScaleProcess();
+
+    /// The class destructor.
+    virtual ~ScaleProcess();
+
+    /// Will set the scale manually.
+    void setScale( ai_real scale );
+
+    /// Returns the current scaling value.
+    ai_real getScale() const;
+
+    /// Overwritten, @see BaseProcess
+    virtual bool IsActive( unsigned int pFlags ) const;
+
+    /// Overwritten, @see BaseProcess
+    virtual void SetupProperties( const Importer* pImp );
+
+    /// Overwritten, @see BaseProcess
+    virtual void Execute( aiScene* pScene );
+
+private:
+    void traverseNodes( aiNode *currentNode );
+    void applyScaling( aiNode *currentNode );
+
+private:
+    ai_real mScale;
+};
+
+} // Namespace Assimp
diff --git a/thirdparty/assimp/code/SceneCombiner.cpp b/thirdparty/assimp/code/SceneCombiner.cpp
new file mode 100644
index 0000000000..e445bd7434
--- /dev/null
+++ b/thirdparty/assimp/code/SceneCombiner.cpp
@@ -0,0 +1,1300 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+// TODO: refactor entire file to get rid of the "flat-copy" first approach
+// to copying structures. This easily breaks in the most unintuitive way
+// possible as new fields are added to assimp structures.
+
+// ----------------------------------------------------------------------------
+/** 
+  * @file Implements Assimp::SceneCombiner. This is a smart utility
+  *       class that combines multiple scenes, meshes, ... into one. Currently
+  *       these utilities are used by the IRR and LWS loaders and the
+  *       OptimizeGraph step.
+  */
+// ----------------------------------------------------------------------------
+#include <assimp/SceneCombiner.h>
+#include <assimp/StringUtils.h>
+#include <assimp/fast_atof.h>
+#include <assimp/metadata.h>
+#include <assimp/Hash.h>
+#include "time.h"
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <stdio.h>
+#include "ScenePrivate.h"
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+// Add a prefix to a string
+inline
+void PrefixString(aiString& string,const char* prefix, unsigned int len) {
+    // If the string is already prefixed, we won't prefix it a second time
+    if (string.length >= 1 && string.data[0] == '$')
+        return;
+
+    if (len+string.length>=MAXLEN-1) {
+        ASSIMP_LOG_DEBUG("Can't add an unique prefix because the string is too long");
+        ai_assert(false);
+        return;
+    }
+
+    // Add the prefix
+    ::memmove(string.data+len,string.data,string.length+1);
+    ::memcpy (string.data, prefix, len);
+
+    // And update the string's length
+    string.length += len;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Add node identifiers to a hashing set
+void SceneCombiner::AddNodeHashes(aiNode* node, std::set<unsigned int>& hashes) {
+    // Add node name to hashing set if it is non-empty - empty nodes are allowed
+    // and they can't have any anims assigned so its absolutely safe to duplicate them.
+    if (node->mName.length) {
+        hashes.insert( SuperFastHash(node->mName.data, static_cast<uint32_t>(node->mName.length)) );
+    }
+
+    // Process all children recursively
+    for (unsigned int i = 0; i < node->mNumChildren;++i)
+        AddNodeHashes(node->mChildren[i],hashes);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Add a name prefix to all nodes in a hierarchy
+void SceneCombiner::AddNodePrefixes(aiNode* node, const char* prefix, unsigned int len) {
+    ai_assert(NULL != prefix);
+    PrefixString(node->mName,prefix,len);
+
+    // Process all children recursively
+    for ( unsigned int i = 0; i < node->mNumChildren; ++i ) {
+        AddNodePrefixes( node->mChildren[ i ], prefix, len );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Search for matching names
+bool SceneCombiner::FindNameMatch(const aiString& name, std::vector<SceneHelper>& input, unsigned int cur) {
+    const unsigned int hash = SuperFastHash(name.data, static_cast<uint32_t>(name.length));
+
+    // Check whether we find a positive match in one of the given sets
+    for (unsigned int i = 0; i < input.size(); ++i) {
+        if (cur != i && input[i].hashes.find(hash) != input[i].hashes.end()) {
+            return true;
+        }
+    }
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Add a name prefix to all nodes in a hierarchy if a hash match is found
+void SceneCombiner::AddNodePrefixesChecked(aiNode* node, const char* prefix, unsigned int len,
+        std::vector<SceneHelper>& input, unsigned int cur) {
+    ai_assert(NULL != prefix);
+    const unsigned int hash = SuperFastHash(node->mName.data, static_cast<uint32_t>(node->mName.length));
+
+    // Check whether we find a positive match in one of the given sets
+    for (unsigned int i = 0; i < input.size(); ++i) {
+        if (cur != i && input[i].hashes.find(hash) != input[i].hashes.end()) {
+            PrefixString(node->mName,prefix,len);
+            break;
+        }
+    }
+
+    // Process all children recursively
+    for (unsigned int i = 0; i < node->mNumChildren;++i)
+        AddNodePrefixesChecked(node->mChildren[i],prefix,len,input,cur);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Add an offset to all mesh indices in a node graph
+void SceneCombiner::OffsetNodeMeshIndices (aiNode* node, unsigned int offset) {
+    for (unsigned int i = 0; i < node->mNumMeshes;++i)
+        node->mMeshes[i] += offset;
+
+    for ( unsigned int i = 0; i < node->mNumChildren; ++i ) {
+        OffsetNodeMeshIndices( node->mChildren[ i ], offset );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Merges two scenes. Currently only used by the LWS loader.
+void SceneCombiner::MergeScenes(aiScene** _dest,std::vector<aiScene*>& src, unsigned int flags) {
+    if ( nullptr == _dest ) {
+        return;
+    }
+
+    // if _dest points to NULL allocate a new scene. Otherwise clear the old and reuse it
+    if (src.empty()) {
+        if (*_dest) {
+            (*_dest)->~aiScene();
+            SceneCombiner::CopySceneFlat(_dest,src[0]);
+        }
+        else *_dest = src[0];
+        return;
+    }
+    if (*_dest)(*_dest)->~aiScene();
+    else *_dest = new aiScene();
+
+    // Create a dummy scene to serve as master for the others
+    aiScene* master = new aiScene();
+    master->mRootNode = new aiNode();
+    master->mRootNode->mName.Set("<MergeRoot>");
+
+    std::vector<AttachmentInfo> srcList (src.size());
+    for (unsigned int i = 0; i < srcList.size();++i)    {
+        srcList[i] = AttachmentInfo(src[i],master->mRootNode);
+    }
+
+    // 'master' will be deleted afterwards
+    MergeScenes (_dest, master, srcList, flags);
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::AttachToGraph (aiNode* attach, std::vector<NodeAttachmentInfo>& srcList) {
+    unsigned int cnt;
+    for ( cnt = 0; cnt < attach->mNumChildren; ++cnt ) {
+        AttachToGraph( attach->mChildren[ cnt ], srcList );
+    }
+
+    cnt = 0;
+    for (std::vector<NodeAttachmentInfo>::iterator it = srcList.begin();
+         it != srcList.end(); ++it)
+    {
+        if ((*it).attachToNode == attach && !(*it).resolved)
+            ++cnt;
+    }
+
+    if (cnt)    {
+        aiNode** n = new aiNode*[cnt+attach->mNumChildren];
+        if (attach->mNumChildren)   {
+            ::memcpy(n,attach->mChildren,sizeof(void*)*attach->mNumChildren);
+            delete[] attach->mChildren;
+        }
+        attach->mChildren = n;
+
+        n += attach->mNumChildren;
+        attach->mNumChildren += cnt;
+
+        for (unsigned int i = 0; i < srcList.size();++i)    {
+            NodeAttachmentInfo& att = srcList[i];
+            if (att.attachToNode == attach && !att.resolved)    {
+                *n = att.node;
+                (**n).mParent = attach;
+                ++n;
+
+                // mark this attachment as resolved
+                att.resolved = true;
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::AttachToGraph ( aiScene* master, std::vector<NodeAttachmentInfo>& src) {
+    ai_assert(NULL != master);
+    AttachToGraph(master->mRootNode,src);
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::MergeScenes(aiScene** _dest, aiScene* master, std::vector<AttachmentInfo>& srcList, unsigned int flags) {
+    if ( nullptr == _dest ) {
+        return;
+    }
+
+    // if _dest points to NULL allocate a new scene. Otherwise clear the old and reuse it
+    if (srcList.empty())    {
+        if (*_dest) {
+            SceneCombiner::CopySceneFlat(_dest,master);
+        }
+        else *_dest = master;
+        return;
+    }
+    if (*_dest) {
+        (*_dest)->~aiScene();
+        new (*_dest) aiScene();
+    }
+    else *_dest = new aiScene();
+
+    aiScene* dest = *_dest;
+
+    std::vector<SceneHelper> src (srcList.size()+1);
+    src[0].scene = master;
+    for (unsigned int i = 0; i < srcList.size();++i)    {
+        src[i+1] = SceneHelper( srcList[i].scene );
+    }
+
+    // this helper array specifies which scenes are duplicates of others
+    std::vector<unsigned int> duplicates(src.size(),UINT_MAX);
+
+    // this helper array is used as lookup table several times
+    std::vector<unsigned int> offset(src.size());
+
+    // Find duplicate scenes
+    for (unsigned int i = 0; i < src.size();++i) {
+        if (duplicates[i] != i && duplicates[i] != UINT_MAX) {
+            continue;
+        }
+
+        duplicates[i] = i;
+        for ( unsigned int a = i+1; a < src.size(); ++a)    {
+            if (src[i].scene == src[a].scene) {
+                duplicates[a] = i;
+            }
+        }
+    }
+
+    // Generate unique names for all named stuff?
+    if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES)
+    {
+#if 0
+        // Construct a proper random number generator
+        boost::mt19937 rng(  );
+        boost::uniform_int<> dist(1u,1 << 24u);
+        boost::variate_generator<boost::mt19937&, boost::uniform_int<> > rndGen(rng, dist);
+#endif
+        for (unsigned int i = 1; i < src.size();++i)
+        {
+            //if (i != duplicates[i])
+            //{
+            //  // duplicate scenes share the same UID
+            //  ::strcpy( src[i].id, src[duplicates[i]].id );
+            //  src[i].idlen = src[duplicates[i]].idlen;
+
+            //  continue;
+            //}
+
+            src[i].idlen = ai_snprintf(src[i].id, 32, "$%.6X$_",i);
+
+            if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+
+                // Compute hashes for all identifiers in this scene and store them
+                // in a sorted table (for convenience I'm using std::set). We hash
+                // just the node and animation channel names, all identifiers except
+                // the material names should be caught by doing this.
+                AddNodeHashes(src[i]->mRootNode,src[i].hashes);
+
+                for (unsigned int a = 0; a < src[i]->mNumAnimations;++a) {
+                    aiAnimation* anim = src[i]->mAnimations[a];
+                    src[i].hashes.insert(SuperFastHash(anim->mName.data,static_cast<uint32_t>(anim->mName.length)));
+                }
+            }
+        }
+    }
+
+    unsigned int cnt;
+
+    // First find out how large the respective output arrays must be
+    for ( unsigned int n = 0; n < src.size();++n )
+    {
+        SceneHelper* cur = &src[n];
+
+        if (n == duplicates[n] || flags & AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY)   {
+            dest->mNumTextures   += (*cur)->mNumTextures;
+            dest->mNumMaterials  += (*cur)->mNumMaterials;
+            dest->mNumMeshes     += (*cur)->mNumMeshes;
+        }
+
+        dest->mNumLights     += (*cur)->mNumLights;
+        dest->mNumCameras    += (*cur)->mNumCameras;
+        dest->mNumAnimations += (*cur)->mNumAnimations;
+
+        // Combine the flags of all scenes
+        // We need to process them flag-by-flag here to get correct results
+        // dest->mFlags ; //|= (*cur)->mFlags;
+        if ((*cur)->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT) {
+            dest->mFlags |= AI_SCENE_FLAGS_NON_VERBOSE_FORMAT;
+        }
+    }
+
+    // generate the output texture list + an offset table for all texture indices
+    if (dest->mNumTextures)
+    {
+        aiTexture** pip = dest->mTextures = new aiTexture*[dest->mNumMaterials];
+        cnt = 0;
+        for ( unsigned int n = 0; n < src.size();++n )
+        {
+            SceneHelper* cur = &src[n];
+            for (unsigned int i = 0; i < (*cur)->mNumTextures;++i)
+            {
+                if (n != duplicates[n])
+                {
+                    if ( flags & AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY)
+                        Copy(pip,(*cur)->mTextures[i]);
+
+                    else continue;
+                }
+                else *pip = (*cur)->mTextures[i];
+                ++pip;
+            }
+
+            offset[n] = cnt;
+            cnt = (unsigned int)(pip - dest->mTextures);
+        }
+    }
+
+    // generate the output material list + an offset table for all material indices
+    if (dest->mNumMaterials)
+    {
+        aiMaterial** pip = dest->mMaterials = new aiMaterial*[dest->mNumMaterials];
+        cnt = 0;
+        for ( unsigned int n = 0; n < src.size();++n )  {
+            SceneHelper* cur = &src[n];
+            for (unsigned int i = 0; i < (*cur)->mNumMaterials;++i)
+            {
+                if (n != duplicates[n])
+                {
+                    if ( flags & AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY)
+                        Copy(pip,(*cur)->mMaterials[i]);
+
+                    else continue;
+                }
+                else *pip = (*cur)->mMaterials[i];
+
+                if ((*cur)->mNumTextures != dest->mNumTextures)     {
+                    // We need to update all texture indices of the mesh. So we need to search for
+                    // a material property called '$tex.file'
+
+                    for (unsigned int a = 0; a < (*pip)->mNumProperties;++a)
+                    {
+                        aiMaterialProperty* prop = (*pip)->mProperties[a];
+                        if (!strncmp(prop->mKey.data,"$tex.file",9))
+                        {
+                            // Check whether this texture is an embedded texture.
+                            // In this case the property looks like this: *<n>,
+                            // where n is the index of the texture.
+                            aiString& s = *((aiString*)prop->mData);
+                            if ('*' == s.data[0])   {
+                                // Offset the index and write it back ..
+                                const unsigned int idx = strtoul10(&s.data[1]) + offset[n];
+                                ASSIMP_itoa10(&s.data[1],sizeof(s.data)-1,idx);
+                            }
+                        }
+
+                        // Need to generate new, unique material names?
+                        else if (!::strcmp( prop->mKey.data,"$mat.name" ) && flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES)
+                        {
+                            aiString* pcSrc = (aiString*) prop->mData;
+                            PrefixString(*pcSrc, (*cur).id, (*cur).idlen);
+                        }
+                    }
+                }
+                ++pip;
+            }
+
+            offset[n] = cnt;
+            cnt = (unsigned int)(pip - dest->mMaterials);
+        }
+    }
+
+    // generate the output mesh list + again an offset table for all mesh indices
+    if (dest->mNumMeshes)
+    {
+        aiMesh** pip = dest->mMeshes = new aiMesh*[dest->mNumMeshes];
+        cnt = 0;
+        for ( unsigned int n = 0; n < src.size();++n )
+        {
+            SceneHelper* cur = &src[n];
+            for (unsigned int i = 0; i < (*cur)->mNumMeshes;++i)
+            {
+                if (n != duplicates[n]) {
+                    if ( flags & AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY)
+                        Copy(pip, (*cur)->mMeshes[i]);
+
+                    else continue;
+                }
+                else *pip = (*cur)->mMeshes[i];
+
+                // update the material index of the mesh
+                (*pip)->mMaterialIndex +=  offset[n];
+                ++pip;
+            }
+
+            // reuse the offset array - store now the mesh offset in it
+            offset[n] = cnt;
+            cnt = (unsigned int)(pip - dest->mMeshes);
+        }
+    }
+
+    std::vector <NodeAttachmentInfo> nodes;
+    nodes.reserve(srcList.size());
+
+    // ----------------------------------------------------------------------------
+    // Now generate the output node graph. We need to make those
+    // names in the graph that are referenced by anims or lights
+    // or cameras unique. So we add a prefix to them ... $<rand>_
+    // We could also use a counter, but using a random value allows us to
+    // use just one prefix if we are joining multiple scene hierarchies recursively.
+    // Chances are quite good we don't collide, so we try that ...
+    // ----------------------------------------------------------------------------
+
+    // Allocate space for light sources, cameras and animations
+    aiLight** ppLights = dest->mLights = (dest->mNumLights
+        ? new aiLight*[dest->mNumLights] : NULL);
+
+    aiCamera** ppCameras = dest->mCameras = (dest->mNumCameras
+        ? new aiCamera*[dest->mNumCameras] : NULL);
+
+    aiAnimation** ppAnims = dest->mAnimations = (dest->mNumAnimations
+        ? new aiAnimation*[dest->mNumAnimations] : NULL);
+
+    for ( int n = static_cast<int>(src.size()-1); n >= 0 ;--n ) /* !!! important !!! */
+    {
+        SceneHelper* cur = &src[n];
+        aiNode* node;
+
+        // To offset or not to offset, this is the question
+        if (n != (int)duplicates[n])
+        {
+            // Get full scene-graph copy
+            Copy( &node, (*cur)->mRootNode );
+            OffsetNodeMeshIndices(node,offset[duplicates[n]]);
+
+            if (flags & AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY) {
+                // (note:) they are already 'offseted' by offset[duplicates[n]]
+                OffsetNodeMeshIndices(node,offset[n] - offset[duplicates[n]]);
+            }
+        }
+        else // if (n == duplicates[n])
+        {
+            node = (*cur)->mRootNode;
+            OffsetNodeMeshIndices(node,offset[n]);
+        }
+        if (n) // src[0] is the master node
+            nodes.push_back(NodeAttachmentInfo( node,srcList[n-1].attachToNode,n ));
+
+        // add name prefixes?
+        if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
+
+            // or the whole scenegraph
+            if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+                AddNodePrefixesChecked(node,(*cur).id,(*cur).idlen,src,n);
+            }
+            else AddNodePrefixes(node,(*cur).id,(*cur).idlen);
+
+            // meshes
+            for (unsigned int i = 0; i < (*cur)->mNumMeshes;++i)    {
+                aiMesh* mesh = (*cur)->mMeshes[i];
+
+                // rename all bones
+                for (unsigned int a = 0; a < mesh->mNumBones;++a)   {
+                    if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+                        if (!FindNameMatch(mesh->mBones[a]->mName,src,n))
+                            continue;
+                    }
+                    PrefixString(mesh->mBones[a]->mName,(*cur).id,(*cur).idlen);
+                }
+            }
+        }
+
+        // --------------------------------------------------------------------
+        // Copy light sources
+        for (unsigned int i = 0; i < (*cur)->mNumLights;++i,++ppLights)
+        {
+            if (n != (int)duplicates[n]) // duplicate scene?
+            {
+                Copy(ppLights, (*cur)->mLights[i]);
+            }
+            else *ppLights = (*cur)->mLights[i];
+
+
+            // Add name prefixes?
+            if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
+                if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+                    if (!FindNameMatch((*ppLights)->mName,src,n))
+                        continue;
+                }
+
+                PrefixString((*ppLights)->mName,(*cur).id,(*cur).idlen);
+            }
+        }
+
+        // --------------------------------------------------------------------
+        // Copy cameras
+        for (unsigned int i = 0; i < (*cur)->mNumCameras;++i,++ppCameras)   {
+            if (n != (int)duplicates[n]) // duplicate scene?
+            {
+                Copy(ppCameras, (*cur)->mCameras[i]);
+            }
+            else *ppCameras = (*cur)->mCameras[i];
+
+            // Add name prefixes?
+            if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
+                if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+                    if (!FindNameMatch((*ppCameras)->mName,src,n))
+                        continue;
+                }
+
+                PrefixString((*ppCameras)->mName,(*cur).id,(*cur).idlen);
+            }
+        }
+
+        // --------------------------------------------------------------------
+        // Copy animations
+        for (unsigned int i = 0; i < (*cur)->mNumAnimations;++i,++ppAnims)  {
+            if (n != (int)duplicates[n]) // duplicate scene?
+            {
+                Copy(ppAnims, (*cur)->mAnimations[i]);
+            }
+            else *ppAnims = (*cur)->mAnimations[i];
+
+            // Add name prefixes?
+            if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES) {
+                if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+                    if (!FindNameMatch((*ppAnims)->mName,src,n))
+                        continue;
+                }
+
+                PrefixString((*ppAnims)->mName,(*cur).id,(*cur).idlen);
+
+                // don't forget to update all node animation channels
+                for (unsigned int a = 0; a < (*ppAnims)->mNumChannels;++a) {
+                    if (flags & AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY) {
+                        if (!FindNameMatch((*ppAnims)->mChannels[a]->mNodeName,src,n))
+                            continue;
+                    }
+
+                    PrefixString((*ppAnims)->mChannels[a]->mNodeName,(*cur).id,(*cur).idlen);
+                }
+            }
+        }
+    }
+
+    // Now build the output graph
+    AttachToGraph ( master, nodes);
+    dest->mRootNode = master->mRootNode;
+
+    // Check whether we succeeded at building the output graph
+    for (std::vector <NodeAttachmentInfo> ::iterator it = nodes.begin();
+        it != nodes.end(); ++it)
+    {
+        if (!(*it).resolved) {
+            if (flags & AI_INT_MERGE_SCENE_RESOLVE_CROSS_ATTACHMENTS) {
+                // search for this attachment point in all other imported scenes, too.
+                for ( unsigned int n = 0; n < src.size();++n ) {
+                    if (n != (*it).src_idx) {
+                        AttachToGraph(src[n].scene,nodes);
+                        if ((*it).resolved)
+                            break;
+                    }
+                }
+            }
+            if (!(*it).resolved) {
+                ASSIMP_LOG_ERROR_F( "SceneCombiner: Failed to resolve attachment ", (*it).node->mName.data,
+                    " ", (*it).attachToNode->mName.data );
+            }
+        }
+    }
+
+    // now delete all input scenes. Make sure duplicate scenes aren't
+    // deleted more than one time
+    for ( unsigned int n = 0; n < src.size();++n )  {
+        if (n != duplicates[n]) // duplicate scene?
+            continue;
+
+        aiScene* deleteMe = src[n].scene;
+
+        // We need to delete the arrays before the destructor is called -
+        // we are reusing the array members
+        delete[] deleteMe->mMeshes;     deleteMe->mMeshes     = NULL;
+        delete[] deleteMe->mCameras;    deleteMe->mCameras    = NULL;
+        delete[] deleteMe->mLights;     deleteMe->mLights     = NULL;
+        delete[] deleteMe->mMaterials;  deleteMe->mMaterials  = NULL;
+        delete[] deleteMe->mAnimations; deleteMe->mAnimations = NULL;
+
+        deleteMe->mRootNode = NULL;
+
+        // Now we can safely delete the scene
+        delete deleteMe;
+    }
+
+    // Check flags
+    if (!dest->mNumMeshes || !dest->mNumMaterials) {
+        dest->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
+    }
+
+    // We're finished
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a list of unique bones
+void SceneCombiner::BuildUniqueBoneList(std::list<BoneWithHash>& asBones,
+    std::vector<aiMesh*>::const_iterator it,
+    std::vector<aiMesh*>::const_iterator end)
+{
+    unsigned int iOffset = 0;
+    for (; it != end;++it)  {
+        for (unsigned int l = 0; l < (*it)->mNumBones;++l)  {
+            aiBone* p = (*it)->mBones[l];
+            uint32_t itml = SuperFastHash(p->mName.data,(unsigned int)p->mName.length);
+
+            std::list<BoneWithHash>::iterator it2  = asBones.begin();
+            std::list<BoneWithHash>::iterator end2 = asBones.end();
+
+            for (;it2 != end2;++it2)    {
+                if ((*it2).first == itml)   {
+                    (*it2).pSrcBones.push_back(BoneSrcIndex(p,iOffset));
+                    break;
+                }
+            }
+            if (end2 == it2)    {
+                // need to begin a new bone entry
+                asBones.push_back(BoneWithHash());
+                BoneWithHash& btz = asBones.back();
+
+                // setup members
+                btz.first = itml;
+                btz.second = &p->mName;
+                btz.pSrcBones.push_back(BoneSrcIndex(p,iOffset));
+            }
+        }
+        iOffset += (*it)->mNumVertices;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Merge a list of bones
+void SceneCombiner::MergeBones(aiMesh* out,std::vector<aiMesh*>::const_iterator it,
+    std::vector<aiMesh*>::const_iterator end)
+{
+    if ( nullptr == out || out->mNumBones == 0 ) {
+        return;
+    }
+
+    // find we need to build an unique list of all bones.
+    // we work with hashes to make the comparisons MUCH faster,
+    // at least if we have many bones.
+    std::list<BoneWithHash> asBones;
+    BuildUniqueBoneList( asBones, it, end );
+
+    // now create the output bones
+    out->mNumBones = 0;
+    out->mBones = new aiBone*[asBones.size()];
+
+    for (std::list<BoneWithHash>::const_iterator boneIt = asBones.begin(),boneEnd = asBones.end(); boneIt != boneEnd; ++boneIt )  {
+        // Allocate a bone and setup it's name
+        aiBone* pc = out->mBones[out->mNumBones++] = new aiBone();
+        pc->mName = aiString( *( boneIt->second ));
+
+        std::vector< BoneSrcIndex >::const_iterator wend = boneIt->pSrcBones.end();
+
+        // Loop through all bones to be joined for this bone
+        for (std::vector< BoneSrcIndex >::const_iterator wmit = boneIt->pSrcBones.begin(); wmit != wend; ++wmit)  {
+            pc->mNumWeights += (*wmit).first->mNumWeights;
+
+            // NOTE: different offset matrices for bones with equal names
+            // are - at the moment - not handled correctly.
+            if (wmit != boneIt->pSrcBones.begin() && pc->mOffsetMatrix != wmit->first->mOffsetMatrix) {
+                ASSIMP_LOG_WARN("Bones with equal names but different offset matrices can't be joined at the moment");
+                continue;
+            }
+            pc->mOffsetMatrix = wmit->first->mOffsetMatrix;
+        }
+
+        // Allocate the vertex weight array
+        aiVertexWeight* avw = pc->mWeights = new aiVertexWeight[pc->mNumWeights];
+
+        // And copy the final weights - adjust the vertex IDs by the
+        // face index offset of the corresponding mesh.
+        for (std::vector< BoneSrcIndex >::const_iterator wmit = (*boneIt).pSrcBones.begin(); wmit != (*boneIt).pSrcBones.end(); ++wmit) {
+            if (wmit == wend) {
+                break;
+            }
+
+            aiBone* pip = (*wmit).first;
+            for (unsigned int mp = 0; mp < pip->mNumWeights;++mp,++avw) {
+                const aiVertexWeight& vfi = pip->mWeights[mp];
+                avw->mWeight = vfi.mWeight;
+                avw->mVertexId = vfi.mVertexId + (*wmit).second;
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Merge a list of meshes
+void SceneCombiner::MergeMeshes(aiMesh** _out, unsigned int /*flags*/,
+    std::vector<aiMesh*>::const_iterator begin,
+    std::vector<aiMesh*>::const_iterator end)
+{
+    if ( nullptr == _out ) {
+        return;
+    }
+
+    if (begin == end)   {
+        *_out = NULL; // no meshes ...
+        return;
+    }
+
+    // Allocate the output mesh
+    aiMesh* out = *_out = new aiMesh();
+    out->mMaterialIndex = (*begin)->mMaterialIndex;
+
+    std::string name;
+    // Find out how much output storage we'll need
+    for (std::vector<aiMesh*>::const_iterator it = begin; it != end; ++it) {
+        const char *meshName( (*it)->mName.C_Str() );
+        name += std::string( meshName );
+        if ( it != end - 1 ) {
+            name += ".";
+        }
+        out->mNumVertices   += (*it)->mNumVertices;
+        out->mNumFaces      += (*it)->mNumFaces;
+        out->mNumBones      += (*it)->mNumBones;
+
+        // combine primitive type flags
+        out->mPrimitiveTypes |= (*it)->mPrimitiveTypes;
+    }
+    out->mName.Set( name.c_str() );
+
+    if (out->mNumVertices) {
+        aiVector3D* pv2;
+
+        // copy vertex positions
+        if ((**begin).HasPositions())   {
+
+            pv2 = out->mVertices = new aiVector3D[out->mNumVertices];
+            for (std::vector<aiMesh*>::const_iterator it = begin; it != end; ++it)  {
+                if ((*it)->mVertices)   {
+                    ::memcpy(pv2,(*it)->mVertices,(*it)->mNumVertices*sizeof(aiVector3D));
+                }
+                else ASSIMP_LOG_WARN("JoinMeshes: Positions expected but input mesh contains no positions");
+                pv2 += (*it)->mNumVertices;
+            }
+        }
+        // copy normals
+        if ((**begin).HasNormals()) {
+
+            pv2 = out->mNormals = new aiVector3D[out->mNumVertices];
+            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
+                if ((*it)->mNormals)    {
+                    ::memcpy(pv2,(*it)->mNormals,(*it)->mNumVertices*sizeof(aiVector3D));
+                } else {
+                    ASSIMP_LOG_WARN( "JoinMeshes: Normals expected but input mesh contains no normals" );
+                }
+                pv2 += (*it)->mNumVertices;
+            }
+        }
+        // copy tangents and bi-tangents
+        if ((**begin).HasTangentsAndBitangents())   {
+
+            pv2 = out->mTangents = new aiVector3D[out->mNumVertices];
+            aiVector3D* pv2b = out->mBitangents = new aiVector3D[out->mNumVertices];
+
+            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it) {
+                if ((*it)->mTangents)   {
+                    ::memcpy(pv2, (*it)->mTangents,  (*it)->mNumVertices*sizeof(aiVector3D));
+                    ::memcpy(pv2b,(*it)->mBitangents,(*it)->mNumVertices*sizeof(aiVector3D));
+                } else {
+                    ASSIMP_LOG_WARN( "JoinMeshes: Tangents expected but input mesh contains no tangents" );
+                }
+                pv2  += (*it)->mNumVertices;
+                pv2b += (*it)->mNumVertices;
+            }
+        }
+        // copy texture coordinates
+        unsigned int n = 0;
+        while ((**begin).HasTextureCoords(n)) {
+            out->mNumUVComponents[n] = (*begin)->mNumUVComponents[n];
+
+            pv2 = out->mTextureCoords[n] = new aiVector3D[out->mNumVertices];
+            for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
+                if ((*it)->mTextureCoords[n])   {
+                    ::memcpy(pv2,(*it)->mTextureCoords[n],(*it)->mNumVertices*sizeof(aiVector3D));
+                } else {
+                    ASSIMP_LOG_WARN( "JoinMeshes: UVs expected but input mesh contains no UVs" );
+                }
+                pv2 += (*it)->mNumVertices;
+            }
+            ++n;
+        }
+        // copy vertex colors
+        n = 0;
+        while ((**begin).HasVertexColors(n))    {
+            aiColor4D *pVec2 = out->mColors[n] = new aiColor4D[out->mNumVertices];
+            for ( std::vector<aiMesh*>::const_iterator it = begin; it != end; ++it )   {
+                if ((*it)->mColors[n])  {
+                    ::memcpy( pVec2, (*it)->mColors[ n ], (*it)->mNumVertices * sizeof( aiColor4D ) ) ;
+                } else {
+                    ASSIMP_LOG_WARN( "JoinMeshes: VCs expected but input mesh contains no VCs" );
+                }
+                pVec2 += (*it)->mNumVertices;
+            }
+            ++n;
+        }
+    }
+
+    if (out->mNumFaces) // just for safety
+    {
+        // copy faces
+        out->mFaces = new aiFace[out->mNumFaces];
+        aiFace* pf2 = out->mFaces;
+
+        unsigned int ofs = 0;
+        for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)   {
+            for (unsigned int m = 0; m < (*it)->mNumFaces;++m,++pf2)    {
+                aiFace& face = (*it)->mFaces[m];
+                pf2->mNumIndices = face.mNumIndices;
+                pf2->mIndices = face.mIndices;
+
+                if (ofs)    {
+                    // add the offset to the vertex
+                    for (unsigned int q = 0; q < face.mNumIndices; ++q)
+                        face.mIndices[q] += ofs;
+                }
+                face.mIndices = NULL;
+            }
+            ofs += (*it)->mNumVertices;
+        }
+    }
+
+    // bones - as this is quite lengthy, I moved the code to a separate function
+    if (out->mNumBones)
+        MergeBones(out,begin,end);
+
+    // delete all source meshes
+    for (std::vector<aiMesh*>::const_iterator it = begin; it != end;++it)
+        delete *it;
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::MergeMaterials(aiMaterial** dest,
+        std::vector<aiMaterial*>::const_iterator begin,
+        std::vector<aiMaterial*>::const_iterator end)
+{
+    if ( nullptr == dest ) {
+        return;
+    }
+
+    if (begin == end)   {
+        *dest = NULL; // no materials ...
+        return;
+    }
+
+    // Allocate the output material
+    aiMaterial* out = *dest = new aiMaterial();
+
+    // Get the maximal number of properties
+    unsigned int size = 0;
+    for (std::vector<aiMaterial*>::const_iterator it = begin; it != end; ++it) {
+        size += (*it)->mNumProperties;
+    }
+
+    out->Clear();
+    delete[] out->mProperties;
+
+    out->mNumAllocated = size;
+    out->mNumProperties = 0;
+    out->mProperties = new aiMaterialProperty*[out->mNumAllocated];
+
+    for (std::vector<aiMaterial*>::const_iterator it = begin; it != end; ++it) {
+        for(unsigned int i = 0; i < (*it)->mNumProperties; ++i) {
+            aiMaterialProperty* sprop = (*it)->mProperties[i];
+
+            // Test if we already have a matching property
+            const aiMaterialProperty* prop_exist;
+            if(aiGetMaterialProperty(out, sprop->mKey.C_Str(), sprop->mSemantic, sprop->mIndex, &prop_exist) != AI_SUCCESS) {
+                // If not, we add it to the new material
+                aiMaterialProperty* prop = out->mProperties[out->mNumProperties] = new aiMaterialProperty();
+
+                prop->mDataLength = sprop->mDataLength;
+                prop->mData = new char[prop->mDataLength];
+                ::memcpy(prop->mData, sprop->mData, prop->mDataLength);
+
+                prop->mIndex    = sprop->mIndex;
+                prop->mSemantic = sprop->mSemantic;
+                prop->mKey      = sprop->mKey;
+                prop->mType     = sprop->mType;
+
+                out->mNumProperties++;
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename Type>
+inline
+void CopyPtrArray (Type**& dest, const Type* const * src, ai_uint num) {
+    if (!num) {
+        dest = NULL;
+        return;
+    }
+    dest = new Type*[num];
+    for (ai_uint i = 0; i < num;++i) {
+        SceneCombiner::Copy(&dest[i],src[i]);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename Type>
+inline
+void GetArrayCopy(Type*& dest, ai_uint num ) {
+    if ( !dest ) {
+        return;
+    }
+    Type* old = dest;
+
+    dest = new Type[num];
+    ::memcpy(dest, old, sizeof(Type) * num);
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::CopySceneFlat(aiScene** _dest,const aiScene* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    // reuse the old scene or allocate a new?
+    if (*_dest) {
+        (*_dest)->~aiScene();
+        new (*_dest) aiScene();
+    } else {
+        *_dest = new aiScene();
+    }
+
+    ::memcpy(*_dest,src,sizeof(aiScene));
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::CopyScene(aiScene** _dest,const aiScene* src,bool allocate) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    if (allocate) {
+        *_dest = new aiScene();
+    }
+    aiScene* dest = *_dest;
+    ai_assert(nullptr != dest);
+
+    // copy metadata
+    if ( nullptr != src->mMetaData ) {
+        dest->mMetaData = new aiMetadata( *src->mMetaData );
+    }
+
+    // copy animations
+    dest->mNumAnimations = src->mNumAnimations;
+    CopyPtrArray(dest->mAnimations,src->mAnimations,
+        dest->mNumAnimations);
+
+    // copy textures
+    dest->mNumTextures = src->mNumTextures;
+    CopyPtrArray(dest->mTextures,src->mTextures,
+        dest->mNumTextures);
+
+    // copy materials
+    dest->mNumMaterials = src->mNumMaterials;
+    CopyPtrArray(dest->mMaterials,src->mMaterials,
+        dest->mNumMaterials);
+
+    // copy lights
+    dest->mNumLights = src->mNumLights;
+    CopyPtrArray(dest->mLights,src->mLights,
+        dest->mNumLights);
+
+    // copy cameras
+    dest->mNumCameras = src->mNumCameras;
+    CopyPtrArray(dest->mCameras,src->mCameras,
+        dest->mNumCameras);
+
+    // copy meshes
+    dest->mNumMeshes = src->mNumMeshes;
+    CopyPtrArray(dest->mMeshes,src->mMeshes,
+        dest->mNumMeshes);
+
+    // now - copy the root node of the scene (deep copy, too)
+    Copy( &dest->mRootNode, src->mRootNode);
+
+    // and keep the flags ...
+    dest->mFlags = src->mFlags;
+
+    // source private data might be NULL if the scene is user-allocated (i.e. for use with the export API)
+    if (dest->mPrivate != NULL) {
+        ScenePriv(dest)->mPPStepsApplied = ScenePriv(src) ? ScenePriv(src)->mPPStepsApplied : 0;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy( aiMesh** _dest, const aiMesh* src ) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiMesh* dest = *_dest = new aiMesh();
+
+    // get a flat copy
+    ::memcpy(dest,src,sizeof(aiMesh));
+
+    // and reallocate all arrays
+    GetArrayCopy( dest->mVertices,   dest->mNumVertices );
+    GetArrayCopy( dest->mNormals ,   dest->mNumVertices );
+    GetArrayCopy( dest->mTangents,   dest->mNumVertices );
+    GetArrayCopy( dest->mBitangents, dest->mNumVertices );
+
+    unsigned int n = 0;
+    while (dest->HasTextureCoords(n))
+        GetArrayCopy( dest->mTextureCoords[n++],   dest->mNumVertices );
+
+    n = 0;
+    while (dest->HasVertexColors(n))
+        GetArrayCopy( dest->mColors[n++],   dest->mNumVertices );
+
+    // make a deep copy of all bones
+    CopyPtrArray(dest->mBones,dest->mBones,dest->mNumBones);
+
+    // make a deep copy of all faces
+    GetArrayCopy(dest->mFaces,dest->mNumFaces);
+    for (unsigned int i = 0; i < dest->mNumFaces;++i) {
+        aiFace& f = dest->mFaces[i];
+        GetArrayCopy(f.mIndices,f.mNumIndices);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy (aiMaterial** _dest, const aiMaterial* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiMaterial* dest = (aiMaterial*) ( *_dest = new aiMaterial() );
+
+    dest->Clear();
+    delete[] dest->mProperties;
+
+    dest->mNumAllocated  =  src->mNumAllocated;
+    dest->mNumProperties =  src->mNumProperties;
+    dest->mProperties    =  new aiMaterialProperty* [dest->mNumAllocated];
+
+    for (unsigned int i = 0; i < dest->mNumProperties;++i)
+    {
+        aiMaterialProperty* prop  = dest->mProperties[i] = new aiMaterialProperty();
+        aiMaterialProperty* sprop = src->mProperties[i];
+
+        prop->mDataLength = sprop->mDataLength;
+        prop->mData = new char[prop->mDataLength];
+        ::memcpy(prop->mData,sprop->mData,prop->mDataLength);
+
+        prop->mIndex    = sprop->mIndex;
+        prop->mSemantic = sprop->mSemantic;
+        prop->mKey      = sprop->mKey;
+        prop->mType     = sprop->mType;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy(aiTexture** _dest, const aiTexture* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiTexture* dest = *_dest = new aiTexture();
+
+    // get a flat copy
+    ::memcpy(dest,src,sizeof(aiTexture));
+
+    // and reallocate all arrays. We must do it manually here
+    const char* old = (const char*)dest->pcData;
+    if (old)
+    {
+        unsigned int cpy;
+        if (!dest->mHeight)cpy = dest->mWidth;
+        else cpy = dest->mHeight * dest->mWidth * sizeof(aiTexel);
+
+        if (!cpy)
+        {
+            dest->pcData = NULL;
+            return;
+        }
+        // the cast is legal, the aiTexel c'tor does nothing important
+        dest->pcData = (aiTexel*) new char[cpy];
+        ::memcpy(dest->pcData, old, cpy);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy( aiAnimation** _dest, const aiAnimation* src ) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiAnimation* dest = *_dest = new aiAnimation();
+
+    // get a flat copy
+    ::memcpy(dest,src,sizeof(aiAnimation));
+
+    // and reallocate all arrays
+    CopyPtrArray( dest->mChannels, src->mChannels, dest->mNumChannels );
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy(aiNodeAnim** _dest, const aiNodeAnim* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiNodeAnim* dest = *_dest = new aiNodeAnim();
+
+    // get a flat copy
+    ::memcpy(dest,src,sizeof(aiNodeAnim));
+
+    // and reallocate all arrays
+    GetArrayCopy( dest->mPositionKeys, dest->mNumPositionKeys );
+    GetArrayCopy( dest->mScalingKeys,  dest->mNumScalingKeys );
+    GetArrayCopy( dest->mRotationKeys, dest->mNumRotationKeys );
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy( aiCamera** _dest,const  aiCamera* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiCamera* dest = *_dest = new aiCamera();
+
+    // get a flat copy, that's already OK
+    ::memcpy(dest,src,sizeof(aiCamera));
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy(aiLight** _dest, const aiLight* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiLight* dest = *_dest = new aiLight();
+
+    // get a flat copy, that's already OK
+    ::memcpy(dest,src,sizeof(aiLight));
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy(aiBone** _dest, const aiBone* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    aiBone* dest = *_dest = new aiBone();
+
+    // get a flat copy
+    ::memcpy(dest,src,sizeof(aiBone));
+
+    // and reallocate all arrays
+    GetArrayCopy( dest->mWeights, dest->mNumWeights );
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy     (aiNode** _dest, const aiNode* src)
+{
+    ai_assert(NULL != _dest && NULL != src);
+
+    aiNode* dest = *_dest = new aiNode();
+
+    // get a flat copy
+    ::memcpy(dest,src,sizeof(aiNode));
+
+    if (src->mMetaData) {
+        Copy(&dest->mMetaData, src->mMetaData);
+    }
+
+    // and reallocate all arrays
+    GetArrayCopy( dest->mMeshes, dest->mNumMeshes );
+    CopyPtrArray( dest->mChildren, src->mChildren,dest->mNumChildren);
+
+	// need to set the mParent fields to the created aiNode.
+	for( unsigned int i = 0; i < dest->mNumChildren; i ++ ) {
+		dest->mChildren[i]->mParent = dest;
+	}
+}
+
+// ------------------------------------------------------------------------------------------------
+void SceneCombiner::Copy(aiMetadata** _dest, const aiMetadata* src) {
+    if ( nullptr == _dest || nullptr == src ) {
+        return;
+    }
+
+    if ( 0 == src->mNumProperties ) {
+        return;
+    }
+
+    aiMetadata* dest = *_dest = aiMetadata::Alloc( src->mNumProperties );
+    std::copy(src->mKeys, src->mKeys + src->mNumProperties, dest->mKeys);
+
+    dest->mValues = new aiMetadataEntry[src->mNumProperties];
+    for (unsigned int i = 0; i < src->mNumProperties; ++i) {
+        aiMetadataEntry& in = src->mValues[i];
+        aiMetadataEntry& out = dest->mValues[i];
+        out.mType = in.mType;
+        switch (dest->mValues[i].mType) {
+            case AI_BOOL:
+                out.mData = new bool(*static_cast<bool*>(in.mData));
+                break;
+            case AI_INT32:
+                out.mData = new int32_t(*static_cast<int32_t*>(in.mData));
+                break;
+            case AI_UINT64:
+                out.mData = new uint64_t(*static_cast<uint64_t*>(in.mData));
+                break;
+            case AI_FLOAT:
+                out.mData = new float(*static_cast<float*>(in.mData));
+                break;
+            case AI_DOUBLE:
+                out.mData = new double(*static_cast<double*>(in.mData));
+                break;
+            case AI_AISTRING:
+                out.mData = new aiString(*static_cast<aiString*>(in.mData));
+                break;
+            case AI_AIVECTOR3D:
+                out.mData = new aiVector3D(*static_cast<aiVector3D*>(in.mData));
+                break;
+            default:
+                ai_assert(false);
+                break;
+        }
+    }
+}
+
+} // Namespace Assimp
+
diff --git a/thirdparty/assimp/code/ScenePreprocessor.cpp b/thirdparty/assimp/code/ScenePreprocessor.cpp
new file mode 100644
index 0000000000..432a3d7666
--- /dev/null
+++ b/thirdparty/assimp/code/ScenePreprocessor.cpp
@@ -0,0 +1,261 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#include "ScenePreprocessor.h"
+#include <assimp/ai_assert.h>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+
+
+using namespace Assimp;
+
+// ---------------------------------------------------------------------------------------------
+void ScenePreprocessor::ProcessScene ()
+{
+    ai_assert(scene != NULL);
+
+    // Process all meshes
+    for (unsigned int i = 0; i < scene->mNumMeshes;++i)
+        ProcessMesh(scene->mMeshes[i]);
+
+    // - nothing to do for nodes for the moment
+    // - nothing to do for textures for the moment
+    // - nothing to do for lights for the moment
+    // - nothing to do for cameras for the moment
+
+    // Process all animations
+    for (unsigned int i = 0; i < scene->mNumAnimations;++i)
+        ProcessAnimation(scene->mAnimations[i]);
+
+    // Generate a default material if none was specified
+    if (!scene->mNumMaterials && scene->mNumMeshes) {
+        scene->mMaterials      = new aiMaterial*[2];
+        aiMaterial* helper;
+
+        aiString name;
+
+        scene->mMaterials[scene->mNumMaterials] = helper = new aiMaterial();
+        aiColor3D clr(0.6f,0.6f,0.6f);
+        helper->AddProperty(&clr,1,AI_MATKEY_COLOR_DIFFUSE);
+
+        // setup the default name to make this material identifiable
+        name.Set(AI_DEFAULT_MATERIAL_NAME);
+        helper->AddProperty(&name,AI_MATKEY_NAME);
+
+        ASSIMP_LOG_DEBUG("ScenePreprocessor: Adding default material \'" AI_DEFAULT_MATERIAL_NAME  "\'");
+
+        for (unsigned int i = 0; i < scene->mNumMeshes;++i) {
+            scene->mMeshes[i]->mMaterialIndex = scene->mNumMaterials;
+        }
+
+        scene->mNumMaterials++;
+    }
+}
+
+// ---------------------------------------------------------------------------------------------
+void ScenePreprocessor::ProcessMesh (aiMesh* mesh)
+{
+    // If aiMesh::mNumUVComponents is *not* set assign the default value of 2
+    for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i)   {
+        if (!mesh->mTextureCoords[i]) {
+            mesh->mNumUVComponents[i] = 0;
+        } else {
+            if (!mesh->mNumUVComponents[i])
+                mesh->mNumUVComponents[i] = 2;
+
+            aiVector3D* p = mesh->mTextureCoords[i], *end = p+mesh->mNumVertices;
+
+            // Ensure unused components are zeroed. This will make 1D texture channels work
+            // as if they were 2D channels .. just in case an application doesn't handle
+            // this case
+            if (2 == mesh->mNumUVComponents[i]) {
+                for (; p != end; ++p)
+                    p->z = 0.f;
+            }
+            else if (1 == mesh->mNumUVComponents[i]) {
+                for (; p != end; ++p)
+                    p->z = p->y = 0.f;
+            }
+            else if (3 == mesh->mNumUVComponents[i]) {
+                // Really 3D coordinates? Check whether the third coordinate is != 0 for at least one element
+                for (; p != end; ++p) {
+                    if (p->z != 0)
+                        break;
+                }
+                if (p == end) {
+                    ASSIMP_LOG_WARN("ScenePreprocessor: UVs are declared to be 3D but they're obviously not. Reverting to 2D.");
+                    mesh->mNumUVComponents[i] = 2;
+                }
+            }
+        }
+    }
+
+    // If the information which primitive types are there in the
+    // mesh is currently not available, compute it.
+    if (!mesh->mPrimitiveTypes) {
+        for (unsigned int a = 0; a < mesh->mNumFaces; ++a)  {
+            aiFace& face = mesh->mFaces[a];
+            switch (face.mNumIndices)
+            {
+            case 3u:
+                mesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+                break;
+
+            case 2u:
+                mesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+                break;
+
+            case 1u:
+                mesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
+                break;
+
+            default:
+                mesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+                break;
+            }
+        }
+    }
+
+    // If tangents and normals are given but no bitangents compute them
+    if (mesh->mTangents && mesh->mNormals && !mesh->mBitangents)    {
+
+        mesh->mBitangents = new aiVector3D[mesh->mNumVertices];
+        for (unsigned int i = 0; i < mesh->mNumVertices;++i)    {
+            mesh->mBitangents[i] = mesh->mNormals[i] ^ mesh->mTangents[i];
+        }
+    }
+}
+
+// ---------------------------------------------------------------------------------------------
+void ScenePreprocessor::ProcessAnimation (aiAnimation* anim)
+{
+    double first = 10e10, last = -10e10;
+    for (unsigned int i = 0; i < anim->mNumChannels;++i)    {
+        aiNodeAnim* channel = anim->mChannels[i];
+
+        /*  If the exact duration of the animation is not given
+         *  compute it now.
+         */
+        if (anim->mDuration == -1.) {
+
+            // Position keys
+            for (unsigned int j = 0; j < channel->mNumPositionKeys;++j) {
+                aiVectorKey& key = channel->mPositionKeys[j];
+                first = std::min (first, key.mTime);
+                last  = std::max (last,  key.mTime);
+            }
+
+            // Scaling keys
+            for (unsigned int j = 0; j < channel->mNumScalingKeys;++j )  {
+                aiVectorKey& key = channel->mScalingKeys[j];
+                first = std::min (first, key.mTime);
+                last  = std::max (last,  key.mTime);
+            }
+
+            // Rotation keys
+            for (unsigned int j = 0; j < channel->mNumRotationKeys;++j ) {
+                aiQuatKey& key = channel->mRotationKeys[ j ];
+                first = std::min (first, key.mTime);
+                last  = std::max (last,  key.mTime);
+            }
+        }
+
+        /*  Check whether the animation channel has no rotation
+         *  or position tracks. In this case we generate a dummy
+         *  track from the information we have in the transformation
+         *  matrix of the corresponding node.
+         */
+        if (!channel->mNumRotationKeys || !channel->mNumPositionKeys || !channel->mNumScalingKeys)  {
+            // Find the node that belongs to this animation
+            aiNode* node = scene->mRootNode->FindNode(channel->mNodeName);
+            if (node) // ValidateDS will complain later if 'node' is NULL
+            {
+                // Decompose the transformation matrix of the node
+                aiVector3D scaling, position;
+                aiQuaternion rotation;
+
+                node->mTransformation.Decompose(scaling, rotation,position);
+
+                // No rotation keys? Generate a dummy track
+                if (!channel->mNumRotationKeys) {
+                    channel->mNumRotationKeys = 1;
+                    channel->mRotationKeys = new aiQuatKey[1];
+                    aiQuatKey& q = channel->mRotationKeys[0];
+
+                    q.mTime  = 0.;
+                    q.mValue = rotation;
+
+                    ASSIMP_LOG_DEBUG("ScenePreprocessor: Dummy rotation track has been generated");
+                }
+
+                // No scaling keys? Generate a dummy track
+                if (!channel->mNumScalingKeys)  {
+                    channel->mNumScalingKeys = 1;
+                    channel->mScalingKeys = new aiVectorKey[1];
+                    aiVectorKey& q = channel->mScalingKeys[0];
+
+                    q.mTime  = 0.;
+                    q.mValue = scaling;
+
+                    ASSIMP_LOG_DEBUG("ScenePreprocessor: Dummy scaling track has been generated");
+                }
+
+                // No position keys? Generate a dummy track
+                if (!channel->mNumPositionKeys) {
+                    channel->mNumPositionKeys = 1;
+                    channel->mPositionKeys = new aiVectorKey[1];
+                    aiVectorKey& q = channel->mPositionKeys[0];
+
+                    q.mTime  = 0.;
+                    q.mValue = position;
+
+                    ASSIMP_LOG_DEBUG("ScenePreprocessor: Dummy position track has been generated");
+                }
+            }
+        }
+    }
+
+    if (anim->mDuration == -1.)     {
+        ASSIMP_LOG_DEBUG("ScenePreprocessor: Setting animation duration");
+        anim->mDuration = last - std::min( first, 0. );
+    }
+}
diff --git a/thirdparty/assimp/code/ScenePreprocessor.h b/thirdparty/assimp/code/ScenePreprocessor.h
new file mode 100644
index 0000000000..3f4c8d7c3f
--- /dev/null
+++ b/thirdparty/assimp/code/ScenePreprocessor.h
@@ -0,0 +1,125 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to search all meshes for
+  degenerated faces */
+#ifndef AI_SCENE_PREPROCESSOR_H_INC
+#define AI_SCENE_PREPROCESSOR_H_INC
+
+#include <assimp/defs.h>
+#include <stddef.h>
+
+struct aiScene;
+struct aiAnimation;
+struct aiMesh;
+
+class ScenePreprocessorTest;
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+/** ScenePreprocessor: Preprocess a scene before any post-processing
+ *  steps are executed.
+ *
+ *  The step computes data that needn't necessarily be provided by the
+ *  importer, such as aiMesh::mPrimitiveTypes.
+*/
+// ----------------------------------------------------------------------------------
+class ASSIMP_API ScenePreprocessor
+{
+    // Make ourselves a friend of the corresponding test unit.
+    friend class ::ScenePreprocessorTest;
+public:
+
+    // ----------------------------------------------------------------
+    /** Default c'tpr. Use SetScene() to assign a scene to the object.
+     */
+    ScenePreprocessor()
+        :   scene   (NULL)
+    {}
+
+    /** Constructs the object and assigns a specific scene to it
+     */
+    ScenePreprocessor(aiScene* _scene)
+        :   scene   (_scene)
+    {}
+
+    // ----------------------------------------------------------------
+    /** Assign a (new) scene to the object.
+     *
+     *  One 'SceneProcessor' can be used for multiple scenes.
+     *  Call ProcessScene to have the scene preprocessed.
+     *  @param sc Scene to be processed.
+     */
+    void SetScene (aiScene* sc) {
+        scene = sc;
+    }
+
+    // ----------------------------------------------------------------
+    /** Preprocess the current scene
+     */
+    void ProcessScene ();
+
+protected:
+
+    // ----------------------------------------------------------------
+    /** Preprocess an animation in the scene
+     *  @param anim Anim to be preprocessed.
+     */
+    void ProcessAnimation (aiAnimation* anim);
+
+
+    // ----------------------------------------------------------------
+    /** Preprocess a mesh in the scene
+     *  @param mesh Mesh to be preprocessed.
+     */
+    void ProcessMesh (aiMesh* mesh);
+
+protected:
+
+    //! Scene we're currently working on
+    aiScene* scene;
+};
+
+
+} // ! end namespace Assimp
+
+#endif // include guard
diff --git a/thirdparty/assimp/code/ScenePrivate.h b/thirdparty/assimp/code/ScenePrivate.h
new file mode 100644
index 0000000000..f336aafc9a
--- /dev/null
+++ b/thirdparty/assimp/code/ScenePrivate.h
@@ -0,0 +1,105 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Stuff to deal with aiScene::mPrivate
+ */
+#pragma once
+#ifndef AI_SCENEPRIVATE_H_INCLUDED
+#define AI_SCENEPRIVATE_H_INCLUDED
+
+#include <assimp/ai_assert.h>
+#include <assimp/scene.h>
+
+namespace Assimp {
+
+// Forward declarations
+class Importer;
+
+struct ScenePrivateData {
+    //  The struct constructor.
+    ScenePrivateData() AI_NO_EXCEPT;
+
+    // Importer that originally loaded the scene though the C-API
+    // If set, this object is owned by this private data instance.
+    Assimp::Importer* mOrigImporter;
+
+    // List of post-processing steps already applied to the scene.
+    unsigned int mPPStepsApplied;
+
+    // true if the scene is a copy made with aiCopyScene()
+    // or the corresponding C++ API. This means that user code
+    // may have made modifications to it, so mPPStepsApplied
+    // and mOrigImporter are no longer safe to rely on and only
+    // serve informative purposes.
+    bool mIsCopy;
+};
+
+inline
+ScenePrivateData::ScenePrivateData() AI_NO_EXCEPT
+: mOrigImporter( nullptr )
+, mPPStepsApplied( 0 )
+, mIsCopy( false ) {
+    // empty
+}
+
+// Access private data stored in the scene
+inline
+ScenePrivateData* ScenePriv(aiScene* in) {
+    ai_assert( nullptr != in );
+    if ( nullptr == in ) {
+        return nullptr;
+    }
+    return static_cast<ScenePrivateData*>(in->mPrivate);
+}
+
+inline
+const ScenePrivateData* ScenePriv(const aiScene* in) {
+    ai_assert( nullptr != in );
+    if ( nullptr == in ) {
+        return nullptr;
+    }
+    return static_cast<const ScenePrivateData*>(in->mPrivate);
+}
+
+} // Namespace Assimp
+
+#endif // AI_SCENEPRIVATE_H_INCLUDED
diff --git a/thirdparty/assimp/code/SkeletonMeshBuilder.cpp b/thirdparty/assimp/code/SkeletonMeshBuilder.cpp
new file mode 100644
index 0000000000..06cfe034e9
--- /dev/null
+++ b/thirdparty/assimp/code/SkeletonMeshBuilder.cpp
@@ -0,0 +1,270 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  SkeletonMeshBuilder.cpp
+ *  @brief Implementation of a little class to construct a dummy mesh for a skeleton
+ */
+
+#include <assimp/scene.h>
+#include <assimp/SkeletonMeshBuilder.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// The constructor processes the given scene and adds a mesh there.
+SkeletonMeshBuilder::SkeletonMeshBuilder( aiScene* pScene, aiNode* root, bool bKnobsOnly)
+{
+    // nothing to do if there's mesh data already present at the scene
+    if( pScene->mNumMeshes > 0 || pScene->mRootNode == NULL)
+        return;
+
+    if (!root)
+        root = pScene->mRootNode;
+
+    mKnobsOnly = bKnobsOnly;
+
+    // build some faces around each node
+    CreateGeometry( root );
+
+    // create a mesh to hold all the generated faces
+    pScene->mNumMeshes = 1;
+    pScene->mMeshes = new aiMesh*[1];
+    pScene->mMeshes[0] = CreateMesh();
+    // and install it at the root node
+    root->mNumMeshes = 1;
+    root->mMeshes = new unsigned int[1];
+    root->mMeshes[0] = 0;
+
+    // create a dummy material for the mesh
+    if(pScene->mNumMaterials==0){
+		pScene->mNumMaterials = 1;
+		pScene->mMaterials = new aiMaterial*[1];
+		pScene->mMaterials[0] = CreateMaterial();
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Recursively builds a simple mesh representation for the given node
+void SkeletonMeshBuilder::CreateGeometry( const aiNode* pNode)
+{
+    // add a joint entry for the node.
+    const unsigned int vertexStartIndex = static_cast<unsigned int>(mVertices.size());
+
+    // now build the geometry.
+    if( pNode->mNumChildren > 0 && !mKnobsOnly)
+    {
+        // If the node has children, we build little pointers to each of them
+        for( unsigned int a = 0; a < pNode->mNumChildren; a++)
+        {
+            // find a suitable coordinate system
+            const aiMatrix4x4& childTransform = pNode->mChildren[a]->mTransformation;
+            aiVector3D childpos( childTransform.a4, childTransform.b4, childTransform.c4);
+            ai_real distanceToChild = childpos.Length();
+            if( distanceToChild < 0.0001)
+                continue;
+            aiVector3D up = aiVector3D( childpos).Normalize();
+
+            aiVector3D orth( 1.0, 0.0, 0.0);
+            if( std::fabs( orth * up) > 0.99)
+                orth.Set( 0.0, 1.0, 0.0);
+
+            aiVector3D front = (up ^ orth).Normalize();
+            aiVector3D side = (front ^ up).Normalize();
+
+            unsigned int localVertexStart = static_cast<unsigned int>(mVertices.size());
+            mVertices.push_back( -front * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( childpos);
+            mVertices.push_back( -side * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( -side * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( childpos);
+            mVertices.push_back( front * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( front * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( childpos);
+            mVertices.push_back( side * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( side * distanceToChild * (ai_real)0.1);
+            mVertices.push_back( childpos);
+            mVertices.push_back( -front * distanceToChild * (ai_real)0.1);
+
+            mFaces.push_back( Face( localVertexStart + 0, localVertexStart + 1, localVertexStart + 2));
+            mFaces.push_back( Face( localVertexStart + 3, localVertexStart + 4, localVertexStart + 5));
+            mFaces.push_back( Face( localVertexStart + 6, localVertexStart + 7, localVertexStart + 8));
+            mFaces.push_back( Face( localVertexStart + 9, localVertexStart + 10, localVertexStart + 11));
+        }
+    }
+    else
+    {
+        // if the node has no children, it's an end node. Put a little knob there instead
+        aiVector3D ownpos( pNode->mTransformation.a4, pNode->mTransformation.b4, pNode->mTransformation.c4);
+        ai_real sizeEstimate = ownpos.Length() * ai_real( 0.18 );
+
+        mVertices.push_back( aiVector3D( -sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, -sizeEstimate));
+        mVertices.push_back( aiVector3D( 0.0, sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, -sizeEstimate));
+        mVertices.push_back( aiVector3D( sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, -sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, -sizeEstimate));
+        mVertices.push_back( aiVector3D( 0.0, -sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( -sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, -sizeEstimate));
+
+        mVertices.push_back( aiVector3D( -sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, sizeEstimate));
+        mVertices.push_back( aiVector3D( 0.0, sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, sizeEstimate));
+        mVertices.push_back( aiVector3D( sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( sizeEstimate, 0.0, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, sizeEstimate));
+        mVertices.push_back( aiVector3D( 0.0, -sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, -sizeEstimate, 0.0));
+        mVertices.push_back( aiVector3D( 0.0, 0.0, sizeEstimate));
+        mVertices.push_back( aiVector3D( -sizeEstimate, 0.0, 0.0));
+
+        mFaces.push_back( Face( vertexStartIndex + 0, vertexStartIndex + 1, vertexStartIndex + 2));
+        mFaces.push_back( Face( vertexStartIndex + 3, vertexStartIndex + 4, vertexStartIndex + 5));
+        mFaces.push_back( Face( vertexStartIndex + 6, vertexStartIndex + 7, vertexStartIndex + 8));
+        mFaces.push_back( Face( vertexStartIndex + 9, vertexStartIndex + 10, vertexStartIndex + 11));
+        mFaces.push_back( Face( vertexStartIndex + 12, vertexStartIndex + 13, vertexStartIndex + 14));
+        mFaces.push_back( Face( vertexStartIndex + 15, vertexStartIndex + 16, vertexStartIndex + 17));
+        mFaces.push_back( Face( vertexStartIndex + 18, vertexStartIndex + 19, vertexStartIndex + 20));
+        mFaces.push_back( Face( vertexStartIndex + 21, vertexStartIndex + 22, vertexStartIndex + 23));
+    }
+
+    unsigned int numVertices = static_cast<unsigned int>(mVertices.size() - vertexStartIndex);
+    if( numVertices > 0)
+    {
+        // create a bone affecting all the newly created vertices
+        aiBone* bone = new aiBone;
+        mBones.push_back( bone);
+        bone->mName = pNode->mName;
+
+        // calculate the bone offset matrix by concatenating the inverse transformations of all parents
+        bone->mOffsetMatrix = aiMatrix4x4( pNode->mTransformation).Inverse();
+        for( aiNode* parent = pNode->mParent; parent != NULL; parent = parent->mParent)
+            bone->mOffsetMatrix = aiMatrix4x4( parent->mTransformation).Inverse() * bone->mOffsetMatrix;
+
+        // add all the vertices to the bone's influences
+        bone->mNumWeights = numVertices;
+        bone->mWeights = new aiVertexWeight[numVertices];
+        for( unsigned int a = 0; a < numVertices; a++)
+            bone->mWeights[a] = aiVertexWeight( vertexStartIndex + a, 1.0);
+
+        // HACK: (thom) transform all vertices to the bone's local space. Should be done before adding
+        // them to the array, but I'm tired now and I'm annoyed.
+        aiMatrix4x4 boneToMeshTransform = aiMatrix4x4( bone->mOffsetMatrix).Inverse();
+        for( unsigned int a = vertexStartIndex; a < mVertices.size(); a++)
+            mVertices[a] = boneToMeshTransform * mVertices[a];
+    }
+
+    // and finally recurse into the children list
+    for( unsigned int a = 0; a < pNode->mNumChildren; a++)
+        CreateGeometry( pNode->mChildren[a]);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Creates the mesh from the internally accumulated stuff and returns it.
+aiMesh* SkeletonMeshBuilder::CreateMesh()
+{
+    aiMesh* mesh = new aiMesh();
+
+    // add points
+    mesh->mNumVertices = static_cast<unsigned int>(mVertices.size());
+    mesh->mVertices = new aiVector3D[mesh->mNumVertices];
+    std::copy( mVertices.begin(), mVertices.end(), mesh->mVertices);
+
+    mesh->mNormals = new aiVector3D[mesh->mNumVertices];
+
+    // add faces
+    mesh->mNumFaces = static_cast<unsigned int>(mFaces.size());
+    mesh->mFaces = new aiFace[mesh->mNumFaces];
+    for( unsigned int a = 0; a < mesh->mNumFaces; a++)
+    {
+        const Face& inface = mFaces[a];
+        aiFace& outface = mesh->mFaces[a];
+        outface.mNumIndices = 3;
+        outface.mIndices = new unsigned int[3];
+        outface.mIndices[0] = inface.mIndices[0];
+        outface.mIndices[1] = inface.mIndices[1];
+        outface.mIndices[2] = inface.mIndices[2];
+
+        // Compute per-face normals ... we don't want the bones to be smoothed ... they're built to visualize
+        // the skeleton, so it's good if there's a visual difference to the rest of the geometry
+        aiVector3D nor = ((mVertices[inface.mIndices[2]] - mVertices[inface.mIndices[0]]) ^
+            (mVertices[inface.mIndices[1]] - mVertices[inface.mIndices[0]]));
+
+        if (nor.Length() < 1e-5) /* ensure that FindInvalidData won't remove us ...*/
+            nor = aiVector3D(1.0,0.0,0.0);
+
+        for (unsigned int n = 0; n < 3; ++n)
+            mesh->mNormals[inface.mIndices[n]] = nor;
+    }
+
+    // add the bones
+    mesh->mNumBones = static_cast<unsigned int>(mBones.size());
+    mesh->mBones = new aiBone*[mesh->mNumBones];
+    std::copy( mBones.begin(), mBones.end(), mesh->mBones);
+
+    // default
+    mesh->mMaterialIndex = 0;
+
+    return mesh;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Creates a dummy material and returns it.
+aiMaterial* SkeletonMeshBuilder::CreateMaterial()
+{
+    aiMaterial* matHelper = new aiMaterial;
+
+    // Name
+    aiString matName( std::string( "SkeletonMaterial"));
+    matHelper->AddProperty( &matName, AI_MATKEY_NAME);
+
+    // Prevent backface culling
+    const int no_cull = 1;
+    matHelper->AddProperty(&no_cull,1,AI_MATKEY_TWOSIDED);
+
+    return matHelper;
+}
diff --git a/thirdparty/assimp/code/SortByPTypeProcess.cpp b/thirdparty/assimp/code/SortByPTypeProcess.cpp
new file mode 100644
index 0000000000..2e0cc54004
--- /dev/null
+++ b/thirdparty/assimp/code/SortByPTypeProcess.cpp
@@ -0,0 +1,403 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the DeterminePTypeHelperProcess and
+ *  SortByPTypeProcess post-process steps.
+*/
+
+
+
+// internal headers
+#include "ProcessHelper.h"
+#include "SortByPTypeProcess.h"
+#include <assimp/Exceptional.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+SortByPTypeProcess::SortByPTypeProcess()
+{
+    configRemoveMeshes = 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+SortByPTypeProcess::~SortByPTypeProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool SortByPTypeProcess::IsActive( unsigned int pFlags) const
+{
+    return  (pFlags & aiProcess_SortByPType) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+void SortByPTypeProcess::SetupProperties(const Importer* pImp)
+{
+    configRemoveMeshes = pImp->GetPropertyInteger(AI_CONFIG_PP_SBP_REMOVE,0);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Update changed meshes in all nodes
+void UpdateNodes(const std::vector<unsigned int>& replaceMeshIndex, aiNode* node)
+{
+    if (node->mNumMeshes)
+    {
+        unsigned int newSize = 0;
+        for (unsigned int m = 0; m< node->mNumMeshes; ++m)
+        {
+            unsigned int add = node->mMeshes[m]<<2;
+            for (unsigned int i = 0; i < 4;++i)
+            {
+                if (UINT_MAX != replaceMeshIndex[add+i])++newSize;
+            }
+        }
+        if (!newSize)
+        {
+            delete[] node->mMeshes;
+            node->mNumMeshes = 0;
+            node->mMeshes    = NULL;
+        }
+        else
+        {
+            // Try to reuse the old array if possible
+            unsigned int* newMeshes = (newSize > node->mNumMeshes
+                ? new unsigned int[newSize] : node->mMeshes);
+
+            for (unsigned int m = 0; m< node->mNumMeshes; ++m)
+            {
+                unsigned int add = node->mMeshes[m]<<2;
+                for (unsigned int i = 0; i < 4;++i)
+                {
+                    if (UINT_MAX != replaceMeshIndex[add+i])
+                        *newMeshes++ = replaceMeshIndex[add+i];
+                }
+            }
+            if (newSize > node->mNumMeshes)
+                delete[] node->mMeshes;
+
+            node->mMeshes = newMeshes-(node->mNumMeshes = newSize);
+        }
+    }
+
+    // call all subnodes recursively
+    for (unsigned int m = 0; m < node->mNumChildren; ++m)
+        UpdateNodes(replaceMeshIndex,node->mChildren[m]);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void SortByPTypeProcess::Execute( aiScene* pScene) {
+    if ( 0 == pScene->mNumMeshes) {
+        ASSIMP_LOG_DEBUG("SortByPTypeProcess skipped, there are no meshes");
+        return;
+    }
+
+    ASSIMP_LOG_DEBUG("SortByPTypeProcess begin");
+
+    unsigned int aiNumMeshesPerPType[4] = {0,0,0,0};
+
+    std::vector<aiMesh*> outMeshes;
+    outMeshes.reserve(pScene->mNumMeshes<<1u);
+
+    bool bAnyChanges = false;
+
+    std::vector<unsigned int> replaceMeshIndex(pScene->mNumMeshes*4,UINT_MAX);
+    std::vector<unsigned int>::iterator meshIdx = replaceMeshIndex.begin();
+    for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        aiMesh* const mesh = pScene->mMeshes[i];
+        ai_assert(0 != mesh->mPrimitiveTypes);
+
+        // if there's just one primitive type in the mesh there's nothing to do for us
+        unsigned int num = 0;
+        if (mesh->mPrimitiveTypes & aiPrimitiveType_POINT) {
+            ++aiNumMeshesPerPType[0];
+            ++num;
+        }
+        if (mesh->mPrimitiveTypes & aiPrimitiveType_LINE) {
+            ++aiNumMeshesPerPType[1];
+            ++num;
+        }
+        if (mesh->mPrimitiveTypes & aiPrimitiveType_TRIANGLE) {
+            ++aiNumMeshesPerPType[2];
+            ++num;
+        }
+        if (mesh->mPrimitiveTypes & aiPrimitiveType_POLYGON) {
+            ++aiNumMeshesPerPType[3];
+            ++num;
+        }
+
+        if (1 == num) {
+            if (!(configRemoveMeshes & mesh->mPrimitiveTypes)) {
+                *meshIdx = static_cast<unsigned int>( outMeshes.size() );
+                outMeshes.push_back(mesh);
+            } else {
+                delete mesh;
+                pScene->mMeshes[ i ] = nullptr;
+                bAnyChanges = true;
+            }
+
+            meshIdx += 4;
+            continue;
+        }
+        bAnyChanges = true;
+
+        // reuse our current mesh arrays for the submesh
+        // with the largest number of primitives
+        unsigned int aiNumPerPType[4] = {0,0,0,0};
+        aiFace* pFirstFace = mesh->mFaces;
+        aiFace* const pLastFace = pFirstFace + mesh->mNumFaces;
+
+        unsigned int numPolyVerts = 0;
+        for (;pFirstFace != pLastFace; ++pFirstFace) {
+            if (pFirstFace->mNumIndices <= 3)
+                ++aiNumPerPType[pFirstFace->mNumIndices-1];
+            else
+            {
+                ++aiNumPerPType[3];
+                numPolyVerts += pFirstFace-> mNumIndices;
+            }
+        }
+
+        VertexWeightTable* avw = ComputeVertexBoneWeightTable(mesh);
+        for (unsigned int real = 0; real < 4; ++real,++meshIdx)
+        {
+            if ( !aiNumPerPType[real] || configRemoveMeshes & (1u << real))
+            {
+                continue;
+            }
+
+            *meshIdx = (unsigned int) outMeshes.size();
+            outMeshes.push_back(new aiMesh());
+            aiMesh* out = outMeshes.back();
+
+            // the name carries the adjacency information between the meshes
+            out->mName = mesh->mName;
+
+            // copy data members
+            out->mPrimitiveTypes = 1u << real;
+            out->mMaterialIndex = mesh->mMaterialIndex;
+
+            // allocate output storage
+            out->mNumFaces = aiNumPerPType[real];
+            aiFace* outFaces = out->mFaces = new aiFace[out->mNumFaces];
+
+            out->mNumVertices = (3 == real ? numPolyVerts : out->mNumFaces * (real+1));
+
+            aiVector3D *vert(nullptr), *nor(nullptr), *tan(nullptr), *bit(nullptr);
+            aiVector3D *uv   [AI_MAX_NUMBER_OF_TEXTURECOORDS];
+            aiColor4D  *cols [AI_MAX_NUMBER_OF_COLOR_SETS];
+
+            if (mesh->mVertices) {
+                vert = out->mVertices = new aiVector3D[out->mNumVertices];
+            }
+
+            if (mesh->mNormals) {
+                nor = out->mNormals = new aiVector3D[out->mNumVertices];
+            }
+
+            if (mesh->mTangents) {
+                tan = out->mTangents   = new aiVector3D[out->mNumVertices];
+                bit = out->mBitangents = new aiVector3D[out->mNumVertices];
+            }
+
+            for (unsigned int j = 0; j < AI_MAX_NUMBER_OF_TEXTURECOORDS;++j) {
+                uv[j] = nullptr;
+                if (mesh->mTextureCoords[j]) {
+                    uv[j] = out->mTextureCoords[j] = new aiVector3D[out->mNumVertices];
+                }
+
+                out->mNumUVComponents[j] = mesh->mNumUVComponents[j];
+            }
+
+            for (unsigned int j = 0; j < AI_MAX_NUMBER_OF_COLOR_SETS;++j) {
+                cols[j] = nullptr;
+                if (mesh->mColors[j]) {
+                    cols[j] = out->mColors[j] = new aiColor4D[out->mNumVertices];
+                }
+            }
+
+            typedef std::vector< aiVertexWeight > TempBoneInfo;
+            std::vector< TempBoneInfo > tempBones(mesh->mNumBones);
+
+            // try to guess how much storage we'll need
+            for (unsigned int q = 0; q < mesh->mNumBones;++q)
+            {
+                tempBones[q].reserve(mesh->mBones[q]->mNumWeights / (num-1));
+            }
+
+            unsigned int outIdx = 0;
+            for (unsigned int m = 0; m < mesh->mNumFaces; ++m)
+            {
+                aiFace& in = mesh->mFaces[m];
+                if ((real == 3  && in.mNumIndices <= 3) || (real != 3 && in.mNumIndices != real+1))
+                {
+                    continue;
+                }
+
+                outFaces->mNumIndices = in.mNumIndices;
+                outFaces->mIndices    = in.mIndices;
+
+                for (unsigned int q = 0; q < in.mNumIndices; ++q)
+                {
+                    unsigned int idx = in.mIndices[q];
+
+                    // process all bones of this index
+                    if (avw)
+                    {
+                        VertexWeightTable& tbl = avw[idx];
+                        for (VertexWeightTable::const_iterator it = tbl.begin(), end = tbl.end();
+                             it != end; ++it)
+                        {
+                            tempBones[ (*it).first ].push_back( aiVertexWeight(outIdx, (*it).second) );
+                        }
+                    }
+
+                    if (vert)
+                    {
+                        *vert++ = mesh->mVertices[idx];
+                        //mesh->mVertices[idx].x = get_qnan();
+                    }
+                    if (nor )*nor++  = mesh->mNormals[idx];
+                    if (tan )
+                    {
+                        *tan++  = mesh->mTangents[idx];
+                        *bit++  = mesh->mBitangents[idx];
+                    }
+
+                    for (unsigned int pp = 0; pp < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++pp)
+                    {
+                        if (!uv[pp])break;
+                        *uv[pp]++ = mesh->mTextureCoords[pp][idx];
+                    }
+
+                    for (unsigned int pp = 0; pp < AI_MAX_NUMBER_OF_COLOR_SETS; ++pp)
+                    {
+                        if (!cols[pp])break;
+                        *cols[pp]++ = mesh->mColors[pp][idx];
+                    }
+
+                    in.mIndices[q] = outIdx++;
+                }
+
+                in.mIndices = nullptr;
+                ++outFaces;
+            }
+            ai_assert(outFaces == out->mFaces + out->mNumFaces);
+
+            // now generate output bones
+            for (unsigned int q = 0; q < mesh->mNumBones;++q)
+                if (!tempBones[q].empty())++out->mNumBones;
+
+            if (out->mNumBones)
+            {
+                out->mBones = new aiBone*[out->mNumBones];
+                for (unsigned int q = 0, real = 0; q < mesh->mNumBones;++q)
+                {
+                    TempBoneInfo& in = tempBones[q];
+                    if (in.empty())continue;
+
+                    aiBone* srcBone = mesh->mBones[q];
+                    aiBone* bone = out->mBones[real] = new aiBone();
+
+                    bone->mName = srcBone->mName;
+                    bone->mOffsetMatrix = srcBone->mOffsetMatrix;
+
+                    bone->mNumWeights = (unsigned int)in.size();
+                    bone->mWeights = new aiVertexWeight[bone->mNumWeights];
+
+                    ::memcpy(bone->mWeights,&in[0],bone->mNumWeights*sizeof(aiVertexWeight));
+
+                    ++real;
+                }
+            }
+        }
+
+        // delete the per-vertex bone weights table
+        delete[] avw;
+
+        // delete the input mesh
+        delete mesh;
+
+        // avoid invalid pointer
+        pScene->mMeshes[i] = NULL;
+    }
+
+    if (outMeshes.empty())
+    {
+        // This should not occur
+        throw DeadlyImportError("No meshes remaining");
+    }
+
+    // If we added at least one mesh process all nodes in the node
+    // graph and update their respective mesh indices.
+    if (bAnyChanges)
+    {
+        UpdateNodes(replaceMeshIndex,pScene->mRootNode);
+    }
+
+    if (outMeshes.size() != pScene->mNumMeshes)
+    {
+        delete[] pScene->mMeshes;
+        pScene->mNumMeshes = (unsigned int)outMeshes.size();
+        pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
+    }
+    ::memcpy(pScene->mMeshes,&outMeshes[0],pScene->mNumMeshes*sizeof(void*));
+
+    if (!DefaultLogger::isNullLogger())
+    {
+        char buffer[1024];
+        ::ai_snprintf(buffer,1024,"Points: %u%s, Lines: %u%s, Triangles: %u%s, Polygons: %u%s (Meshes, X = removed)",
+            aiNumMeshesPerPType[0], ((configRemoveMeshes & aiPrimitiveType_POINT)     ? "X" : ""),
+            aiNumMeshesPerPType[1], ((configRemoveMeshes & aiPrimitiveType_LINE)      ? "X" : ""),
+            aiNumMeshesPerPType[2], ((configRemoveMeshes & aiPrimitiveType_TRIANGLE)  ? "X" : ""),
+            aiNumMeshesPerPType[3], ((configRemoveMeshes & aiPrimitiveType_POLYGON)   ? "X" : ""));
+        ASSIMP_LOG_INFO(buffer);
+        ASSIMP_LOG_DEBUG("SortByPTypeProcess finished");
+    }
+}
+
diff --git a/thirdparty/assimp/code/SortByPTypeProcess.h b/thirdparty/assimp/code/SortByPTypeProcess.h
new file mode 100644
index 0000000000..c9d9924d8f
--- /dev/null
+++ b/thirdparty/assimp/code/SortByPTypeProcess.h
@@ -0,0 +1,85 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to sort meshes by the types
+    of primitives they contain */
+#ifndef AI_SORTBYPTYPEPROCESS_H_INC
+#define AI_SORTBYPTYPEPROCESS_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/mesh.h>
+
+class SortByPTypeProcessTest;
+namespace Assimp    {
+
+
+// ---------------------------------------------------------------------------
+/** SortByPTypeProcess: Sorts meshes by the types of primitives they contain.
+ *  A mesh with 5 lines, 3 points and 145 triangles would be split in 3
+ * submeshes.
+*/
+class ASSIMP_API SortByPTypeProcess : public BaseProcess
+{
+public:
+
+    SortByPTypeProcess();
+    ~SortByPTypeProcess();
+
+public:
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    void SetupProperties(const Importer* pImp);
+
+private:
+
+    int configRemoveMeshes;
+};
+
+
+} // end of namespace Assimp
+
+#endif // !!AI_SORTBYPTYPEPROCESS_H_INC
diff --git a/thirdparty/assimp/code/SpatialSort.cpp b/thirdparty/assimp/code/SpatialSort.cpp
new file mode 100644
index 0000000000..a4f3a4e4b8
--- /dev/null
+++ b/thirdparty/assimp/code/SpatialSort.cpp
@@ -0,0 +1,342 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the helper class to quickly find vertices close to a given position */
+
+#include <assimp/SpatialSort.h>
+#include <assimp/ai_assert.h>
+
+using namespace Assimp;
+
+// CHAR_BIT seems to be defined under MVSC, but not under GCC. Pray that the correct value is 8.
+#ifndef CHAR_BIT
+#   define CHAR_BIT 8
+#endif
+
+// ------------------------------------------------------------------------------------------------
+// Constructs a spatially sorted representation from the given position array.
+SpatialSort::SpatialSort( const aiVector3D* pPositions, unsigned int pNumPositions,
+    unsigned int pElementOffset)
+
+    // define the reference plane. We choose some arbitrary vector away from all basic axises
+    // in the hope that no model spreads all its vertices along this plane.
+    : mPlaneNormal(0.8523f, 0.34321f, 0.5736f)
+{
+    mPlaneNormal.Normalize();
+    Fill(pPositions,pNumPositions,pElementOffset);
+}
+
+// ------------------------------------------------------------------------------------------------
+SpatialSort :: SpatialSort()
+: mPlaneNormal(0.8523f, 0.34321f, 0.5736f)
+{
+    mPlaneNormal.Normalize();
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor
+SpatialSort::~SpatialSort()
+{
+    // nothing to do here, everything destructs automatically
+}
+
+// ------------------------------------------------------------------------------------------------
+void SpatialSort::Fill( const aiVector3D* pPositions, unsigned int pNumPositions,
+    unsigned int pElementOffset,
+    bool pFinalize /*= true */)
+{
+    mPositions.clear();
+    Append(pPositions,pNumPositions,pElementOffset,pFinalize);
+}
+
+// ------------------------------------------------------------------------------------------------
+void SpatialSort :: Finalize()
+{
+    std::sort( mPositions.begin(), mPositions.end());
+}
+
+// ------------------------------------------------------------------------------------------------
+void SpatialSort::Append( const aiVector3D* pPositions, unsigned int pNumPositions,
+    unsigned int pElementOffset,
+    bool pFinalize /*= true */)
+{
+    // store references to all given positions along with their distance to the reference plane
+    const size_t initial = mPositions.size();
+    mPositions.reserve(initial + (pFinalize?pNumPositions:pNumPositions*2));
+    for( unsigned int a = 0; a < pNumPositions; a++)
+    {
+        const char* tempPointer = reinterpret_cast<const char*> (pPositions);
+        const aiVector3D* vec   = reinterpret_cast<const aiVector3D*> (tempPointer + a * pElementOffset);
+
+        // store position by index and distance
+        ai_real distance = *vec * mPlaneNormal;
+        mPositions.push_back( Entry( static_cast<unsigned int>(a+initial), *vec, distance));
+    }
+
+    if (pFinalize) {
+        // now sort the array ascending by distance.
+        Finalize();
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns an iterator for all positions close to the given position.
+void SpatialSort::FindPositions( const aiVector3D& pPosition,
+    ai_real pRadius, std::vector<unsigned int>& poResults) const
+{
+    const ai_real dist = pPosition * mPlaneNormal;
+    const ai_real minDist = dist - pRadius, maxDist = dist + pRadius;
+
+    // clear the array
+    poResults.clear();
+
+    // quick check for positions outside the range
+    if( mPositions.size() == 0)
+        return;
+    if( maxDist < mPositions.front().mDistance)
+        return;
+    if( minDist > mPositions.back().mDistance)
+        return;
+
+    // do a binary search for the minimal distance to start the iteration there
+    unsigned int index = (unsigned int)mPositions.size() / 2;
+    unsigned int binaryStepSize = (unsigned int)mPositions.size() / 4;
+    while( binaryStepSize > 1)
+    {
+        if( mPositions[index].mDistance < minDist)
+            index += binaryStepSize;
+        else
+            index -= binaryStepSize;
+
+        binaryStepSize /= 2;
+    }
+
+    // depending on the direction of the last step we need to single step a bit back or forth
+    // to find the actual beginning element of the range
+    while( index > 0 && mPositions[index].mDistance > minDist)
+        index--;
+    while( index < (mPositions.size() - 1) && mPositions[index].mDistance < minDist)
+        index++;
+
+    // Mow start iterating from there until the first position lays outside of the distance range.
+    // Add all positions inside the distance range within the given radius to the result aray
+    std::vector<Entry>::const_iterator it = mPositions.begin() + index;
+    const ai_real pSquared = pRadius*pRadius;
+    while( it->mDistance < maxDist)
+    {
+        if( (it->mPosition - pPosition).SquareLength() < pSquared)
+            poResults.push_back( it->mIndex);
+        ++it;
+        if( it == mPositions.end())
+            break;
+    }
+
+    // that's it
+}
+
+namespace {
+
+    // Binary, signed-integer representation of a single-precision floating-point value.
+    // IEEE 754 says: "If two floating-point numbers in the same format are ordered then they are
+    //  ordered the same way when their bits are reinterpreted as sign-magnitude integers."
+    // This allows us to convert all floating-point numbers to signed integers of arbitrary size
+    //  and then use them to work with ULPs (Units in the Last Place, for high-precision
+    //  computations) or to compare them (integer comparisons are faster than floating-point
+    //  comparisons on many platforms).
+    typedef ai_int BinFloat;
+
+    // --------------------------------------------------------------------------------------------
+    // Converts the bit pattern of a floating-point number to its signed integer representation.
+    BinFloat ToBinary( const ai_real & pValue) {
+
+        // If this assertion fails, signed int is not big enough to store a float on your platform.
+        //  Please correct the declaration of BinFloat a few lines above - but do it in a portable,
+        //  #ifdef'd manner!
+        static_assert( sizeof(BinFloat) >= sizeof(ai_real), "sizeof(BinFloat) >= sizeof(ai_real)");
+
+        #if defined( _MSC_VER)
+            // If this assertion fails, Visual C++ has finally moved to ILP64. This means that this
+            //  code has just become legacy code! Find out the current value of _MSC_VER and modify
+            //  the #if above so it evaluates false on the current and all upcoming VC versions (or
+            //  on the current platform, if LP64 or LLP64 are still used on other platforms).
+            static_assert( sizeof(BinFloat) == sizeof(ai_real), "sizeof(BinFloat) == sizeof(ai_real)");
+
+            // This works best on Visual C++, but other compilers have their problems with it.
+            const BinFloat binValue = reinterpret_cast<BinFloat const &>(pValue);
+        #else
+            // On many compilers, reinterpreting a float address as an integer causes aliasing
+            // problems. This is an ugly but more or less safe way of doing it.
+            union {
+                ai_real     asFloat;
+                BinFloat    asBin;
+            } conversion;
+            conversion.asBin    = 0; // zero empty space in case sizeof(BinFloat) > sizeof(float)
+            conversion.asFloat  = pValue;
+            const BinFloat binValue = conversion.asBin;
+        #endif
+
+        // floating-point numbers are of sign-magnitude format, so find out what signed number
+        //  representation we must convert negative values to.
+        // See http://en.wikipedia.org/wiki/Signed_number_representations.
+
+        // Two's complement?
+        if( (-42 == (~42 + 1)) && (binValue & 0x80000000))
+            return BinFloat(1 << (CHAR_BIT * sizeof(BinFloat) - 1)) - binValue;
+        // One's complement?
+        else if ( (-42 == ~42) && (binValue & 0x80000000))
+            return BinFloat(-0) - binValue;
+        // Sign-magnitude?
+        else if( (-42 == (42 | (-0))) && (binValue & 0x80000000)) // -0 = 1000... binary
+            return binValue;
+        else
+            return binValue;
+    }
+
+} // namespace
+
+// ------------------------------------------------------------------------------------------------
+// Fills an array with indices of all positions identical to the given position. In opposite to
+// FindPositions(), not an epsilon is used but a (very low) tolerance of four floating-point units.
+void SpatialSort::FindIdenticalPositions( const aiVector3D& pPosition,
+    std::vector<unsigned int>& poResults) const
+{
+    // Epsilons have a huge disadvantage: they are of constant precision, while floating-point
+    //  values are of log2 precision. If you apply e=0.01 to 100, the epsilon is rather small, but
+    //  if you apply it to 0.001, it is enormous.
+
+    // The best way to overcome this is the unit in the last place (ULP). A precision of 2 ULPs
+    //  tells us that a float does not differ more than 2 bits from the "real" value. ULPs are of
+    //  logarithmic precision - around 1, they are 1*(2^24) and around 10000, they are 0.00125.
+
+    // For standard C math, we can assume a precision of 0.5 ULPs according to IEEE 754. The
+    //  incoming vertex positions might have already been transformed, probably using rather
+    //  inaccurate SSE instructions, so we assume a tolerance of 4 ULPs to safely identify
+    //  identical vertex positions.
+    static const int toleranceInULPs = 4;
+    // An interesting point is that the inaccuracy grows linear with the number of operations:
+    //  multiplying to numbers, each inaccurate to four ULPs, results in an inaccuracy of four ULPs
+    //  plus 0.5 ULPs for the multiplication.
+    // To compute the distance to the plane, a dot product is needed - that is a multiplication and
+    //  an addition on each number.
+    static const int distanceToleranceInULPs = toleranceInULPs + 1;
+    // The squared distance between two 3D vectors is computed the same way, but with an additional
+    //  subtraction.
+    static const int distance3DToleranceInULPs = distanceToleranceInULPs + 1;
+
+    // Convert the plane distance to its signed integer representation so the ULPs tolerance can be
+    //  applied. For some reason, VC won't optimize two calls of the bit pattern conversion.
+    const BinFloat minDistBinary = ToBinary( pPosition * mPlaneNormal) - distanceToleranceInULPs;
+    const BinFloat maxDistBinary = minDistBinary + 2 * distanceToleranceInULPs;
+
+    // clear the array in this strange fashion because a simple clear() would also deallocate
+    // the array which we want to avoid
+    poResults.resize( 0 );
+
+    // do a binary search for the minimal distance to start the iteration there
+    unsigned int index = (unsigned int)mPositions.size() / 2;
+    unsigned int binaryStepSize = (unsigned int)mPositions.size() / 4;
+    while( binaryStepSize > 1)
+    {
+        // Ugly, but conditional jumps are faster with integers than with floats
+        if( minDistBinary > ToBinary(mPositions[index].mDistance))
+            index += binaryStepSize;
+        else
+            index -= binaryStepSize;
+
+        binaryStepSize /= 2;
+    }
+
+    // depending on the direction of the last step we need to single step a bit back or forth
+    // to find the actual beginning element of the range
+    while( index > 0 && minDistBinary < ToBinary(mPositions[index].mDistance) )
+        index--;
+    while( index < (mPositions.size() - 1) && minDistBinary > ToBinary(mPositions[index].mDistance))
+        index++;
+
+    // Now start iterating from there until the first position lays outside of the distance range.
+    // Add all positions inside the distance range within the tolerance to the result array
+    std::vector<Entry>::const_iterator it = mPositions.begin() + index;
+    while( ToBinary(it->mDistance) < maxDistBinary)
+    {
+        if( distance3DToleranceInULPs >= ToBinary((it->mPosition - pPosition).SquareLength()))
+            poResults.push_back(it->mIndex);
+        ++it;
+        if( it == mPositions.end())
+            break;
+    }
+
+    // that's it
+}
+
+// ------------------------------------------------------------------------------------------------
+unsigned int SpatialSort::GenerateMappingTable(std::vector<unsigned int>& fill, ai_real pRadius) const
+{
+    fill.resize(mPositions.size(),UINT_MAX);
+    ai_real dist, maxDist;
+
+    unsigned int t=0;
+    const ai_real pSquared = pRadius*pRadius;
+    for (size_t i = 0; i < mPositions.size();) {
+        dist = mPositions[i].mPosition * mPlaneNormal;
+        maxDist = dist + pRadius;
+
+        fill[mPositions[i].mIndex] = t;
+        const aiVector3D& oldpos = mPositions[i].mPosition;
+        for (++i; i < fill.size() && mPositions[i].mDistance < maxDist
+            && (mPositions[i].mPosition - oldpos).SquareLength() < pSquared; ++i)
+        {
+            fill[mPositions[i].mIndex] = t;
+        }
+        ++t;
+    }
+
+#ifdef ASSIMP_BUILD_DEBUG
+
+    // debug invariant: mPositions[i].mIndex values must range from 0 to mPositions.size()-1
+    for (size_t i = 0; i < fill.size(); ++i) {
+        ai_assert(fill[i]<mPositions.size());
+    }
+
+#endif
+    return t;
+}
diff --git a/thirdparty/assimp/code/SplitByBoneCountProcess.cpp b/thirdparty/assimp/code/SplitByBoneCountProcess.cpp
new file mode 100644
index 0000000000..2ef66a9afc
--- /dev/null
+++ b/thirdparty/assimp/code/SplitByBoneCountProcess.cpp
@@ -0,0 +1,407 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+
+/// @file SplitByBoneCountProcess.cpp
+/// Implementation of the SplitByBoneCount postprocessing step
+
+// internal headers of the post-processing framework
+#include "SplitByBoneCountProcess.h"
+#include <assimp/postprocess.h>
+#include <assimp/DefaultLogger.hpp>
+
+#include <limits>
+#include <assimp/TinyFormatter.h>
+
+using namespace Assimp;
+using namespace Assimp::Formatter;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor
+SplitByBoneCountProcess::SplitByBoneCountProcess()
+{
+    // set default, might be overridden by importer config
+    mMaxBoneCount = AI_SBBC_DEFAULT_MAX_BONES;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor
+SplitByBoneCountProcess::~SplitByBoneCountProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag.
+bool SplitByBoneCountProcess::IsActive( unsigned int pFlags) const
+{
+    return !!(pFlags & aiProcess_SplitByBoneCount);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Updates internal properties
+void SplitByBoneCountProcess::SetupProperties(const Importer* pImp)
+{
+    mMaxBoneCount = pImp->GetPropertyInteger(AI_CONFIG_PP_SBBC_MAX_BONES,AI_SBBC_DEFAULT_MAX_BONES);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void SplitByBoneCountProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("SplitByBoneCountProcess begin");
+
+    // early out
+    bool isNecessary = false;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; ++a)
+        if( pScene->mMeshes[a]->mNumBones > mMaxBoneCount )
+            isNecessary = true;
+
+    if( !isNecessary )
+    {
+        ASSIMP_LOG_DEBUG( format() << "SplitByBoneCountProcess early-out: no meshes with more than " << mMaxBoneCount << " bones." );
+        return;
+    }
+
+    // we need to do something. Let's go.
+    mSubMeshIndices.clear();
+    mSubMeshIndices.resize( pScene->mNumMeshes);
+
+    // build a new array of meshes for the scene
+    std::vector<aiMesh*> meshes;
+
+    for( unsigned int a = 0; a < pScene->mNumMeshes; ++a)
+    {
+        aiMesh* srcMesh = pScene->mMeshes[a];
+
+        std::vector<aiMesh*> newMeshes;
+        SplitMesh( pScene->mMeshes[a], newMeshes);
+
+        // mesh was split
+        if( !newMeshes.empty() )
+        {
+            // store new meshes and indices of the new meshes
+            for( unsigned int b = 0; b < newMeshes.size(); ++b)
+            {
+                mSubMeshIndices[a].push_back( static_cast<unsigned int>(meshes.size()));
+                meshes.push_back( newMeshes[b]);
+            }
+
+            // and destroy the source mesh. It should be completely contained inside the new submeshes
+            delete srcMesh;
+        }
+        else
+        {
+            // Mesh is kept unchanged - store it's new place in the mesh array
+            mSubMeshIndices[a].push_back( static_cast<unsigned int>(meshes.size()));
+            meshes.push_back( srcMesh);
+        }
+    }
+
+    // rebuild the scene's mesh array
+    pScene->mNumMeshes = static_cast<unsigned int>(meshes.size());
+    delete [] pScene->mMeshes;
+    pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
+    std::copy( meshes.begin(), meshes.end(), pScene->mMeshes);
+
+    // recurse through all nodes and translate the node's mesh indices to fit the new mesh array
+    UpdateNode( pScene->mRootNode);
+
+    ASSIMP_LOG_DEBUG( format() << "SplitByBoneCountProcess end: split " << mSubMeshIndices.size() << " meshes into " << meshes.size() << " submeshes." );
+}
+
+// ------------------------------------------------------------------------------------------------
+// Splits the given mesh by bone count.
+void SplitByBoneCountProcess::SplitMesh( const aiMesh* pMesh, std::vector<aiMesh*>& poNewMeshes) const
+{
+    // skip if not necessary
+    if( pMesh->mNumBones <= mMaxBoneCount )
+        return;
+
+    // necessary optimisation: build a list of all affecting bones for each vertex
+    // TODO: (thom) maybe add a custom allocator here to avoid allocating tens of thousands of small arrays
+    typedef std::pair<unsigned int, float> BoneWeight;
+    std::vector< std::vector<BoneWeight> > vertexBones( pMesh->mNumVertices);
+    for( unsigned int a = 0; a < pMesh->mNumBones; ++a)
+    {
+        const aiBone* bone = pMesh->mBones[a];
+        for( unsigned int b = 0; b < bone->mNumWeights; ++b)
+            vertexBones[ bone->mWeights[b].mVertexId ].push_back( BoneWeight( a, bone->mWeights[b].mWeight));
+    }
+
+    unsigned int numFacesHandled = 0;
+    std::vector<bool> isFaceHandled( pMesh->mNumFaces, false);
+    while( numFacesHandled < pMesh->mNumFaces )
+    {
+        // which bones are used in the current submesh
+        unsigned int numBones = 0;
+        std::vector<bool> isBoneUsed( pMesh->mNumBones, false);
+        // indices of the faces which are going to go into this submesh
+        std::vector<unsigned int> subMeshFaces;
+        subMeshFaces.reserve( pMesh->mNumFaces);
+        // accumulated vertex count of all the faces in this submesh
+        unsigned int numSubMeshVertices = 0;
+        // a small local array of new bones for the current face. State of all used bones for that face
+        // can only be updated AFTER the face is completely analysed. Thanks to imre for the fix.
+        std::vector<unsigned int> newBonesAtCurrentFace;
+
+        // add faces to the new submesh as long as all bones affecting the faces' vertices fit in the limit
+        for( unsigned int a = 0; a < pMesh->mNumFaces; ++a)
+        {
+            // skip if the face is already stored in a submesh
+            if( isFaceHandled[a] )
+                continue;
+
+            const aiFace& face = pMesh->mFaces[a];
+            // check every vertex if its bones would still fit into the current submesh
+            for( unsigned int b = 0; b < face.mNumIndices; ++b )
+            {
+                const std::vector<BoneWeight>& vb = vertexBones[face.mIndices[b]];
+                for( unsigned int c = 0; c < vb.size(); ++c)
+                {
+                    unsigned int boneIndex = vb[c].first;
+                    // if the bone is already used in this submesh, it's ok
+                    if( isBoneUsed[boneIndex] )
+                        continue;
+
+                    // if it's not used, yet, we would need to add it. Store its bone index
+                    if( std::find( newBonesAtCurrentFace.begin(), newBonesAtCurrentFace.end(), boneIndex) == newBonesAtCurrentFace.end() )
+                        newBonesAtCurrentFace.push_back( boneIndex);
+                }
+            }
+
+            // leave out the face if the new bones required for this face don't fit the bone count limit anymore
+            if( numBones + newBonesAtCurrentFace.size() > mMaxBoneCount )
+                continue;
+
+            // mark all new bones as necessary
+            while( !newBonesAtCurrentFace.empty() )
+            {
+                unsigned int newIndex = newBonesAtCurrentFace.back();
+                newBonesAtCurrentFace.pop_back(); // this also avoids the deallocation which comes with a clear()
+                if( isBoneUsed[newIndex] )
+                    continue;
+
+                isBoneUsed[newIndex] = true;
+                numBones++;
+            }
+
+            // store the face index and the vertex count
+            subMeshFaces.push_back( a);
+            numSubMeshVertices += face.mNumIndices;
+
+            // remember that this face is handled
+            isFaceHandled[a] = true;
+            numFacesHandled++;
+        }
+
+        // create a new mesh to hold this subset of the source mesh
+        aiMesh* newMesh = new aiMesh;
+        if( pMesh->mName.length > 0 )
+            newMesh->mName.Set( format() << pMesh->mName.data << "_sub" << poNewMeshes.size());
+        newMesh->mMaterialIndex = pMesh->mMaterialIndex;
+        newMesh->mPrimitiveTypes = pMesh->mPrimitiveTypes;
+        poNewMeshes.push_back( newMesh);
+
+        // create all the arrays for this mesh if the old mesh contained them
+        newMesh->mNumVertices = numSubMeshVertices;
+        newMesh->mNumFaces = static_cast<unsigned int>(subMeshFaces.size());
+        newMesh->mVertices = new aiVector3D[newMesh->mNumVertices];
+        if( pMesh->HasNormals() )
+            newMesh->mNormals = new aiVector3D[newMesh->mNumVertices];
+        if( pMesh->HasTangentsAndBitangents() )
+        {
+            newMesh->mTangents = new aiVector3D[newMesh->mNumVertices];
+            newMesh->mBitangents = new aiVector3D[newMesh->mNumVertices];
+        }
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a )
+        {
+            if( pMesh->HasTextureCoords( a) )
+                newMesh->mTextureCoords[a] = new aiVector3D[newMesh->mNumVertices];
+            newMesh->mNumUVComponents[a] = pMesh->mNumUVComponents[a];
+        }
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; ++a )
+        {
+            if( pMesh->HasVertexColors( a) )
+                newMesh->mColors[a] = new aiColor4D[newMesh->mNumVertices];
+        }
+
+        // and copy over the data, generating faces with linear indices along the way
+        newMesh->mFaces = new aiFace[subMeshFaces.size()];
+        unsigned int nvi = 0; // next vertex index
+        std::vector<unsigned int> previousVertexIndices( numSubMeshVertices, std::numeric_limits<unsigned int>::max()); // per new vertex: its index in the source mesh
+        for( unsigned int a = 0; a < subMeshFaces.size(); ++a )
+        {
+            const aiFace& srcFace = pMesh->mFaces[subMeshFaces[a]];
+            aiFace& dstFace = newMesh->mFaces[a];
+            dstFace.mNumIndices = srcFace.mNumIndices;
+            dstFace.mIndices = new unsigned int[dstFace.mNumIndices];
+
+            // accumulate linearly all the vertices of the source face
+            for( unsigned int b = 0; b < dstFace.mNumIndices; ++b )
+            {
+                unsigned int srcIndex = srcFace.mIndices[b];
+                dstFace.mIndices[b] = nvi;
+                previousVertexIndices[nvi] = srcIndex;
+
+                newMesh->mVertices[nvi] = pMesh->mVertices[srcIndex];
+                if( pMesh->HasNormals() )
+                    newMesh->mNormals[nvi] = pMesh->mNormals[srcIndex];
+                if( pMesh->HasTangentsAndBitangents() )
+                {
+                    newMesh->mTangents[nvi] = pMesh->mTangents[srcIndex];
+                    newMesh->mBitangents[nvi] = pMesh->mBitangents[srcIndex];
+                }
+                for( unsigned int c = 0; c < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++c )
+                {
+                    if( pMesh->HasTextureCoords( c) )
+                        newMesh->mTextureCoords[c][nvi] = pMesh->mTextureCoords[c][srcIndex];
+                }
+                for( unsigned int c = 0; c < AI_MAX_NUMBER_OF_COLOR_SETS; ++c )
+                {
+                    if( pMesh->HasVertexColors( c) )
+                        newMesh->mColors[c][nvi] = pMesh->mColors[c][srcIndex];
+                }
+
+                nvi++;
+            }
+        }
+
+        ai_assert( nvi == numSubMeshVertices );
+
+        // Create the bones for the new submesh: first create the bone array
+        newMesh->mNumBones = 0;
+        newMesh->mBones = new aiBone*[numBones];
+
+        std::vector<unsigned int> mappedBoneIndex( pMesh->mNumBones, std::numeric_limits<unsigned int>::max());
+        for( unsigned int a = 0; a < pMesh->mNumBones; ++a )
+        {
+            if( !isBoneUsed[a] )
+                continue;
+
+            // create the new bone
+            const aiBone* srcBone = pMesh->mBones[a];
+            aiBone* dstBone = new aiBone;
+            mappedBoneIndex[a] = newMesh->mNumBones;
+            newMesh->mBones[newMesh->mNumBones++] = dstBone;
+            dstBone->mName = srcBone->mName;
+            dstBone->mOffsetMatrix = srcBone->mOffsetMatrix;
+            dstBone->mNumWeights = 0;
+        }
+
+        ai_assert( newMesh->mNumBones == numBones );
+
+        // iterate over all new vertices and count which bones affected its old vertex in the source mesh
+        for( unsigned int a = 0; a < numSubMeshVertices; ++a )
+        {
+            unsigned int oldIndex = previousVertexIndices[a];
+            const std::vector<BoneWeight>& bonesOnThisVertex = vertexBones[oldIndex];
+
+            for( unsigned int b = 0; b < bonesOnThisVertex.size(); ++b )
+            {
+                unsigned int newBoneIndex = mappedBoneIndex[ bonesOnThisVertex[b].first ];
+                if( newBoneIndex != std::numeric_limits<unsigned int>::max() )
+                    newMesh->mBones[newBoneIndex]->mNumWeights++;
+            }
+        }
+
+        // allocate all bone weight arrays accordingly
+        for( unsigned int a = 0; a < newMesh->mNumBones; ++a )
+        {
+            aiBone* bone = newMesh->mBones[a];
+            ai_assert( bone->mNumWeights > 0 );
+            bone->mWeights = new aiVertexWeight[bone->mNumWeights];
+            bone->mNumWeights = 0; // for counting up in the next step
+        }
+
+        // now copy all the bone vertex weights for all the vertices which made it into the new submesh
+        for( unsigned int a = 0; a < numSubMeshVertices; ++a)
+        {
+            // find the source vertex for it in the source mesh
+            unsigned int previousIndex = previousVertexIndices[a];
+            // these bones were affecting it
+            const std::vector<BoneWeight>& bonesOnThisVertex = vertexBones[previousIndex];
+            // all of the bones affecting it should be present in the new submesh, or else
+            // the face it comprises shouldn't be present
+            for( unsigned int b = 0; b < bonesOnThisVertex.size(); ++b)
+            {
+                unsigned int newBoneIndex = mappedBoneIndex[ bonesOnThisVertex[b].first ];
+                ai_assert( newBoneIndex != std::numeric_limits<unsigned int>::max() );
+                aiVertexWeight* dstWeight = newMesh->mBones[newBoneIndex]->mWeights + newMesh->mBones[newBoneIndex]->mNumWeights;
+                newMesh->mBones[newBoneIndex]->mNumWeights++;
+
+                dstWeight->mVertexId = a;
+                dstWeight->mWeight = bonesOnThisVertex[b].second;
+            }
+        }
+
+        // I have the strange feeling that this will break apart at some point in time...
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Recursively updates the node's mesh list to account for the changed mesh list
+void SplitByBoneCountProcess::UpdateNode( aiNode* pNode) const
+{
+    // rebuild the node's mesh index list
+    if( pNode->mNumMeshes > 0 )
+    {
+        std::vector<unsigned int> newMeshList;
+        for( unsigned int a = 0; a < pNode->mNumMeshes; ++a)
+        {
+            unsigned int srcIndex = pNode->mMeshes[a];
+            const std::vector<unsigned int>& replaceMeshes = mSubMeshIndices[srcIndex];
+            newMeshList.insert( newMeshList.end(), replaceMeshes.begin(), replaceMeshes.end());
+        }
+
+        delete [] pNode->mMeshes;
+        pNode->mNumMeshes = static_cast<unsigned int>(newMeshList.size());
+        pNode->mMeshes = new unsigned int[pNode->mNumMeshes];
+        std::copy( newMeshList.begin(), newMeshList.end(), pNode->mMeshes);
+    }
+
+    // do that also recursively for all children
+    for( unsigned int a = 0; a < pNode->mNumChildren; ++a )
+    {
+        UpdateNode( pNode->mChildren[a]);
+    }
+}
diff --git a/thirdparty/assimp/code/SplitByBoneCountProcess.h b/thirdparty/assimp/code/SplitByBoneCountProcess.h
new file mode 100644
index 0000000000..6c904a9df4
--- /dev/null
+++ b/thirdparty/assimp/code/SplitByBoneCountProcess.h
@@ -0,0 +1,111 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/// @file SplitByBoneCountProcess.h
+/// Defines a post processing step to split meshes with many bones into submeshes
+#ifndef AI_SPLITBYBONECOUNTPROCESS_H_INC
+#define AI_SPLITBYBONECOUNTPROCESS_H_INC
+
+#include <vector>
+#include "BaseProcess.h"
+
+#include <assimp/mesh.h>
+#include <assimp/scene.h>
+
+namespace Assimp
+{
+
+
+/** Postprocessing filter to split meshes with many bones into submeshes
+ * so that each submesh has a certain max bone count.
+ *
+ * Applied BEFORE the JoinVertices-Step occurs.
+ * Returns NON-UNIQUE vertices, splits by bone count.
+*/
+class SplitByBoneCountProcess : public BaseProcess
+{
+public:
+
+    SplitByBoneCountProcess();
+    ~SplitByBoneCountProcess();
+
+public:
+    /** Returns whether the processing step is present in the given flag.
+    * @param pFlags The processing flags the importer was called with. A
+    *   bitwise combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields,
+    *   false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    virtual void SetupProperties(const Importer* pImp);
+
+protected:
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+    /// Splits the given mesh by bone count.
+    /// @param pMesh the Mesh to split. Is not changed at all, but might be superfluous in case it was split.
+    /// @param poNewMeshes Array of submeshes created in the process. Empty if splitting was not necessary.
+    void SplitMesh( const aiMesh* pMesh, std::vector<aiMesh*>& poNewMeshes) const;
+
+    /// Recursively updates the node's mesh list to account for the changed mesh list
+    void UpdateNode( aiNode* pNode) const;
+
+public:
+    /// Max bone count. Splitting occurs if a mesh has more than that number of bones.
+    size_t mMaxBoneCount;
+
+    /// Per mesh index: Array of indices of the new submeshes.
+    std::vector< std::vector<unsigned int> > mSubMeshIndices;
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_SPLITBYBONECOUNTPROCESS_H_INC
diff --git a/thirdparty/assimp/code/SplitLargeMeshes.cpp b/thirdparty/assimp/code/SplitLargeMeshes.cpp
new file mode 100644
index 0000000000..1797b28d5a
--- /dev/null
+++ b/thirdparty/assimp/code/SplitLargeMeshes.cpp
@@ -0,0 +1,623 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** 
+ *  @file Implementation of the SplitLargeMeshes postprocessing step
+ */
+
+// internal headers of the post-processing framework
+#include "SplitLargeMeshes.h"
+#include "ProcessHelper.h"
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+SplitLargeMeshesProcess_Triangle::SplitLargeMeshesProcess_Triangle() {
+    LIMIT = AI_SLM_DEFAULT_MAX_TRIANGLES;
+}
+
+// ------------------------------------------------------------------------------------------------
+SplitLargeMeshesProcess_Triangle::~SplitLargeMeshesProcess_Triangle() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool SplitLargeMeshesProcess_Triangle::IsActive( unsigned int pFlags) const {
+    return (pFlags & aiProcess_SplitLargeMeshes) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void SplitLargeMeshesProcess_Triangle::Execute( aiScene* pScene) {
+    if (0xffffffff == this->LIMIT || nullptr == pScene ) {
+        return;
+    }
+
+    ASSIMP_LOG_DEBUG("SplitLargeMeshesProcess_Triangle begin");
+    std::vector<std::pair<aiMesh*, unsigned int> > avList;
+
+    for( unsigned int a = 0; a < pScene->mNumMeshes; ++a) {
+        this->SplitMesh(a, pScene->mMeshes[a],avList);
+    }
+
+    if (avList.size() != pScene->mNumMeshes) {
+        // it seems something has been split. rebuild the mesh list
+        delete[] pScene->mMeshes;
+        pScene->mNumMeshes = (unsigned int)avList.size();
+        pScene->mMeshes = new aiMesh*[avList.size()];
+
+        for (unsigned int i = 0; i < avList.size();++i) {
+            pScene->mMeshes[i] = avList[i].first;
+        }
+
+        // now we need to update all nodes
+        this->UpdateNode(pScene->mRootNode,avList);
+        ASSIMP_LOG_INFO("SplitLargeMeshesProcess_Triangle finished. Meshes have been split");
+    } else {
+        ASSIMP_LOG_DEBUG("SplitLargeMeshesProcess_Triangle finished. There was nothing to do");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup properties
+void SplitLargeMeshesProcess_Triangle::SetupProperties( const Importer* pImp) {
+    // get the current value of the split property
+    this->LIMIT = pImp->GetPropertyInteger(AI_CONFIG_PP_SLM_TRIANGLE_LIMIT,AI_SLM_DEFAULT_MAX_TRIANGLES);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Update a node after some meshes have been split
+void SplitLargeMeshesProcess_Triangle::UpdateNode(aiNode* pcNode,
+        const std::vector<std::pair<aiMesh*, unsigned int> >& avList) {
+    // for every index in out list build a new entry
+    std::vector<unsigned int> aiEntries;
+    aiEntries.reserve(pcNode->mNumMeshes + 1);
+    for (unsigned int i = 0; i < pcNode->mNumMeshes;++i) {
+        for (unsigned int a = 0; a < avList.size();++a) {
+            if (avList[a].second == pcNode->mMeshes[i]) {
+                aiEntries.push_back(a);
+            }
+        }
+    }
+
+    // now build the new list
+    delete[] pcNode->mMeshes;
+    pcNode->mNumMeshes = (unsigned int)aiEntries.size();
+    pcNode->mMeshes = new unsigned int[pcNode->mNumMeshes];
+
+    for (unsigned int b = 0; b < pcNode->mNumMeshes;++b) {
+        pcNode->mMeshes[b] = aiEntries[b];
+    }
+
+    // recusively update all other nodes
+    for (unsigned int i = 0; i < pcNode->mNumChildren;++i) {
+        UpdateNode ( pcNode->mChildren[i], avList );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void SplitLargeMeshesProcess_Triangle::SplitMesh(
+        unsigned int a,
+        aiMesh* pMesh,
+        std::vector<std::pair<aiMesh*, unsigned int> >& avList) {
+    if (pMesh->mNumFaces > SplitLargeMeshesProcess_Triangle::LIMIT) {
+        ASSIMP_LOG_INFO("Mesh exceeds the triangle limit. It will be split ...");
+
+        // we need to split this mesh into sub meshes
+        // determine the size of a submesh
+        const unsigned int iSubMeshes = (pMesh->mNumFaces / LIMIT) + 1;
+
+        const unsigned int iOutFaceNum = pMesh->mNumFaces / iSubMeshes;
+        const unsigned int iOutVertexNum = iOutFaceNum * 3;
+
+        // now generate all submeshes
+        for (unsigned int i = 0; i < iSubMeshes;++i) {
+            aiMesh* pcMesh          = new aiMesh;
+            pcMesh->mNumFaces       = iOutFaceNum;
+            pcMesh->mMaterialIndex  = pMesh->mMaterialIndex;
+
+            // the name carries the adjacency information between the meshes
+            pcMesh->mName = pMesh->mName;
+
+            if (i == iSubMeshes-1) {
+                pcMesh->mNumFaces = iOutFaceNum + (
+                    pMesh->mNumFaces - iOutFaceNum * iSubMeshes);
+            }
+            // copy the list of faces
+            pcMesh->mFaces = new aiFace[pcMesh->mNumFaces];
+
+            const unsigned int iBase = iOutFaceNum * i;
+
+            // get the total number of indices
+            unsigned int iCnt = 0;
+            for (unsigned int p = iBase; p < pcMesh->mNumFaces + iBase;++p) {
+                iCnt += pMesh->mFaces[p].mNumIndices;
+            }
+            pcMesh->mNumVertices = iCnt;
+
+            // allocate storage
+            if (pMesh->mVertices != nullptr) {
+                pcMesh->mVertices = new aiVector3D[iCnt];
+            }
+
+            if (pMesh->HasNormals()) {
+                pcMesh->mNormals = new aiVector3D[iCnt];
+            }
+
+            if (pMesh->HasTangentsAndBitangents()) {
+                pcMesh->mTangents = new aiVector3D[iCnt];
+                pcMesh->mBitangents = new aiVector3D[iCnt];
+            }
+
+            // texture coordinates
+            for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_TEXTURECOORDS;++c) {
+                pcMesh->mNumUVComponents[c] = pMesh->mNumUVComponents[c];
+                if (pMesh->HasTextureCoords( c)) {
+                    pcMesh->mTextureCoords[c] = new aiVector3D[iCnt];
+                }
+            }
+
+            // vertex colors
+            for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_COLOR_SETS;++c) {
+                if (pMesh->HasVertexColors( c)) {
+                    pcMesh->mColors[c] = new aiColor4D[iCnt];
+                }
+            }
+
+            if (pMesh->HasBones()) {
+                // assume the number of bones won't change in most cases
+                pcMesh->mBones = new aiBone*[pMesh->mNumBones];
+
+                // iterate through all bones of the mesh and find those which
+                // need to be copied to the split mesh
+                std::vector<aiVertexWeight> avTempWeights;
+                for (unsigned int p = 0; p < pcMesh->mNumBones;++p) {
+                    aiBone* const bone = pcMesh->mBones[p];
+                    avTempWeights.clear();
+                    avTempWeights.reserve(bone->mNumWeights / iSubMeshes);
+
+                    for (unsigned int q = 0; q < bone->mNumWeights;++q) {
+                        aiVertexWeight& weight = bone->mWeights[q];
+                        if(weight.mVertexId >= iBase && weight.mVertexId < iBase + iOutVertexNum) {
+                            avTempWeights.push_back(weight);
+                            weight = avTempWeights.back();
+                            weight.mVertexId -= iBase;
+                        }
+                    }
+
+                    if (!avTempWeights.empty()) {
+                        // we'll need this bone. Copy it ...
+                        aiBone* pc = new aiBone();
+                        pcMesh->mBones[pcMesh->mNumBones++] = pc;
+                        pc->mName = aiString(bone->mName);
+                        pc->mNumWeights = (unsigned int)avTempWeights.size();
+                        pc->mOffsetMatrix = bone->mOffsetMatrix;
+
+                        // no need to reallocate the array for the last submesh.
+                        // Here we can reuse the (large) source array, although
+                        // we'll waste some memory
+                        if (iSubMeshes-1 == i) {
+                            pc->mWeights = bone->mWeights;
+                            bone->mWeights = nullptr;
+                        } else {
+                            pc->mWeights = new aiVertexWeight[pc->mNumWeights];
+                        }
+
+                        // copy the weights
+                        ::memcpy(pc->mWeights,&avTempWeights[0],sizeof(aiVertexWeight)*pc->mNumWeights);
+                    }
+                }
+            }
+
+            // (we will also need to copy the array of indices)
+            unsigned int iCurrent = 0;
+            for (unsigned int p = 0; p < pcMesh->mNumFaces;++p) {
+                pcMesh->mFaces[p].mNumIndices = 3;
+                // allocate a new array
+                const unsigned int iTemp = p + iBase;
+                const unsigned int iNumIndices = pMesh->mFaces[iTemp].mNumIndices;
+
+                // setup face type and number of indices
+                pcMesh->mFaces[p].mNumIndices = iNumIndices;
+                unsigned int* pi = pMesh->mFaces[iTemp].mIndices;
+                unsigned int* piOut = pcMesh->mFaces[p].mIndices = new unsigned int[iNumIndices];
+
+                // need to update the output primitive types
+                switch (iNumIndices) {
+                case 1:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
+                    break;
+                case 2:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+                    break;
+                case 3:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+                    break;
+                default:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+                }
+
+                // and copy the contents of the old array, offset by current base
+                for (unsigned int v = 0; v < iNumIndices;++v) {
+                    unsigned int iIndex = pi[v];
+                    unsigned int iIndexOut = iCurrent++;
+                    piOut[v] = iIndexOut;
+
+                    // copy positions
+                    if (pMesh->mVertices != nullptr) {
+                        pcMesh->mVertices[iIndexOut] = pMesh->mVertices[iIndex];
+                    }
+
+                    // copy normals
+                    if (pMesh->HasNormals()) {
+                        pcMesh->mNormals[iIndexOut] = pMesh->mNormals[iIndex];
+                    }
+
+                    // copy tangents/bitangents
+                    if (pMesh->HasTangentsAndBitangents()) {
+                        pcMesh->mTangents[iIndexOut] = pMesh->mTangents[iIndex];
+                        pcMesh->mBitangents[iIndexOut] = pMesh->mBitangents[iIndex];
+                    }
+
+                    // texture coordinates
+                    for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_TEXTURECOORDS;++c) {
+                        if (pMesh->HasTextureCoords( c ) ) {
+                            pcMesh->mTextureCoords[c][iIndexOut] = pMesh->mTextureCoords[c][iIndex];
+                        }
+                    }
+                    // vertex colors
+                    for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_COLOR_SETS;++c) {
+                        if (pMesh->HasVertexColors( c)) {
+                            pcMesh->mColors[c][iIndexOut] = pMesh->mColors[c][iIndex];
+                        }
+                    }
+                }
+            }
+
+            // add the newly created mesh to the list
+            avList.push_back(std::pair<aiMesh*, unsigned int>(pcMesh,a));
+        }
+
+        // now delete the old mesh data
+        delete pMesh;
+    } else {
+        avList.push_back(std::pair<aiMesh*, unsigned int>(pMesh,a));
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+SplitLargeMeshesProcess_Vertex::SplitLargeMeshesProcess_Vertex() {
+    LIMIT = AI_SLM_DEFAULT_MAX_VERTICES;
+}
+
+// ------------------------------------------------------------------------------------------------
+SplitLargeMeshesProcess_Vertex::~SplitLargeMeshesProcess_Vertex() {
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool SplitLargeMeshesProcess_Vertex::IsActive( unsigned int pFlags) const {
+    return (pFlags & aiProcess_SplitLargeMeshes) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void SplitLargeMeshesProcess_Vertex::Execute( aiScene* pScene) {
+    if (0xffffffff == this->LIMIT || nullptr == pScene ) {
+        return;
+    }
+
+    ASSIMP_LOG_DEBUG("SplitLargeMeshesProcess_Vertex begin");
+
+    std::vector<std::pair<aiMesh*, unsigned int> > avList;
+
+    //Check for point cloud first, 
+    //Do not process point cloud, splitMesh works only with faces data
+    for (unsigned int a = 0; a < pScene->mNumMeshes; a++) {
+        if ( pScene->mMeshes[a]->mPrimitiveTypes == aiPrimitiveType_POINT ) {
+            return;
+        }
+    }
+
+    for( unsigned int a = 0; a < pScene->mNumMeshes; ++a ) {
+        this->SplitMesh(a, pScene->mMeshes[a], avList);
+    }
+
+    if (avList.size() != pScene->mNumMeshes) {
+        // it seems something has been split. rebuild the mesh list
+        delete[] pScene->mMeshes;
+        pScene->mNumMeshes = (unsigned int)avList.size();
+        pScene->mMeshes = new aiMesh*[avList.size()];
+
+        for (unsigned int i = 0; i < avList.size();++i) {
+            pScene->mMeshes[i] = avList[i].first;
+        }
+
+        // now we need to update all nodes
+        SplitLargeMeshesProcess_Triangle::UpdateNode(pScene->mRootNode,avList);
+        ASSIMP_LOG_INFO("SplitLargeMeshesProcess_Vertex finished. Meshes have been split");
+    } else {
+        ASSIMP_LOG_DEBUG("SplitLargeMeshesProcess_Vertex finished. There was nothing to do");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup properties
+void SplitLargeMeshesProcess_Vertex::SetupProperties( const Importer* pImp) {
+    this->LIMIT = pImp->GetPropertyInteger(AI_CONFIG_PP_SLM_VERTEX_LIMIT,AI_SLM_DEFAULT_MAX_VERTICES);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void SplitLargeMeshesProcess_Vertex::SplitMesh(
+        unsigned int a,
+        aiMesh* pMesh,
+        std::vector<std::pair<aiMesh*, unsigned int> >& avList) {
+    if (pMesh->mNumVertices > SplitLargeMeshesProcess_Vertex::LIMIT) {
+        typedef std::vector< std::pair<unsigned int,float> > VertexWeightTable;
+
+        // build a per-vertex weight list if necessary
+        VertexWeightTable* avPerVertexWeights = ComputeVertexBoneWeightTable(pMesh);
+
+        // we need to split this mesh into sub meshes
+        // determine the estimated size of a submesh
+        // (this could be too large. Max waste is a single digit percentage)
+        const unsigned int iSubMeshes = (pMesh->mNumVertices / SplitLargeMeshesProcess_Vertex::LIMIT) + 1;
+
+        // create a std::vector<unsigned int> to indicate which vertices
+        // have already been copied
+        std::vector<unsigned int> avWasCopied;
+        avWasCopied.resize(pMesh->mNumVertices,0xFFFFFFFF);
+
+        // try to find a good estimate for the number of output faces
+        // per mesh. Add 12.5% as buffer
+        unsigned int iEstimatedSize = pMesh->mNumFaces / iSubMeshes;
+        iEstimatedSize += iEstimatedSize >> 3;
+
+        // now generate all submeshes
+        unsigned int iBase( 0 );
+        while (true) {
+            const unsigned int iOutVertexNum = SplitLargeMeshesProcess_Vertex::LIMIT;
+            aiMesh* pcMesh          = new aiMesh;
+            pcMesh->mNumVertices    = 0;
+            pcMesh->mMaterialIndex  = pMesh->mMaterialIndex;
+
+            // the name carries the adjacency information between the meshes
+            pcMesh->mName = pMesh->mName;
+
+            typedef std::vector<aiVertexWeight> BoneWeightList;
+            if (pMesh->HasBones()) {
+                pcMesh->mBones = new aiBone*[pMesh->mNumBones];
+                ::memset(pcMesh->mBones,0,sizeof(void*)*pMesh->mNumBones);
+            }
+
+            // clear the temporary helper array
+            if (iBase) {
+                // we can't use memset here we unsigned int needn' be 32 bits
+                for (auto &elem : avWasCopied) {
+                    elem = 0xffffffff;
+                }
+            }
+
+            // output vectors
+            std::vector<aiFace> vFaces;
+
+            // reserve enough storage for most cases
+            if (pMesh->HasPositions()) {
+                pcMesh->mVertices = new aiVector3D[iOutVertexNum];
+            }
+            if (pMesh->HasNormals()) {
+                pcMesh->mNormals = new aiVector3D[iOutVertexNum];
+            }
+            if (pMesh->HasTangentsAndBitangents()) {
+                pcMesh->mTangents = new aiVector3D[iOutVertexNum];
+                pcMesh->mBitangents = new aiVector3D[iOutVertexNum];
+            }
+            for (unsigned int c = 0; pMesh->HasVertexColors(c);++c) {
+                pcMesh->mColors[c] = new aiColor4D[iOutVertexNum];
+            }
+            for (unsigned int c = 0; pMesh->HasTextureCoords(c);++c) {
+                pcMesh->mNumUVComponents[c] = pMesh->mNumUVComponents[c];
+                pcMesh->mTextureCoords[c] = new aiVector3D[iOutVertexNum];
+            }
+            vFaces.reserve(iEstimatedSize);
+
+            // (we will also need to copy the array of indices)
+            while (iBase < pMesh->mNumFaces) {
+                // allocate a new array
+                const unsigned int iNumIndices = pMesh->mFaces[iBase].mNumIndices;
+
+                // doesn't catch degenerates but is quite fast
+                unsigned int iNeed = 0;
+                for (unsigned int v = 0; v < iNumIndices;++v) {
+                    unsigned int iIndex = pMesh->mFaces[iBase].mIndices[v];
+
+                    // check whether we do already have this vertex
+                    if (0xFFFFFFFF == avWasCopied[iIndex]) {
+                        iNeed++;
+                    }
+                }
+                if (pcMesh->mNumVertices + iNeed > iOutVertexNum) {
+                    // don't use this face
+                    break;
+                }
+
+                vFaces.push_back(aiFace());
+                aiFace& rFace = vFaces.back();
+
+                // setup face type and number of indices
+                rFace.mNumIndices = iNumIndices;
+                rFace.mIndices = new unsigned int[iNumIndices];
+
+                // need to update the output primitive types
+                switch (rFace.mNumIndices) {
+                case 1:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_POINT;
+                    break;
+                case 2:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_LINE;
+                    break;
+                case 3:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+                    break;
+                default:
+                    pcMesh->mPrimitiveTypes |= aiPrimitiveType_POLYGON;
+                }
+
+                // and copy the contents of the old array, offset by current base
+                for (unsigned int v = 0; v < iNumIndices;++v) {
+                    unsigned int iIndex = pMesh->mFaces[iBase].mIndices[v];
+
+                    // check whether we do already have this vertex
+                    if (0xFFFFFFFF != avWasCopied[iIndex]) {
+                        rFace.mIndices[v] = avWasCopied[iIndex];
+                        continue;
+                    }
+
+                    // copy positions
+                    pcMesh->mVertices[pcMesh->mNumVertices] = (pMesh->mVertices[iIndex]);
+
+                    // copy normals
+                    if (pMesh->HasNormals()) {
+                        pcMesh->mNormals[pcMesh->mNumVertices] = (pMesh->mNormals[iIndex]);
+                    }
+
+                    // copy tangents/bitangents
+                    if (pMesh->HasTangentsAndBitangents()) {
+                        pcMesh->mTangents[pcMesh->mNumVertices] = (pMesh->mTangents[iIndex]);
+                        pcMesh->mBitangents[pcMesh->mNumVertices] = (pMesh->mBitangents[iIndex]);
+                    }
+
+                    // texture coordinates
+                    for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_TEXTURECOORDS;++c) {
+                        if (pMesh->HasTextureCoords( c)) {
+                            pcMesh->mTextureCoords[c][pcMesh->mNumVertices] = pMesh->mTextureCoords[c][iIndex];
+                        }
+                    }
+                    // vertex colors
+                    for (unsigned int c = 0;  c < AI_MAX_NUMBER_OF_COLOR_SETS;++c) {
+                        if (pMesh->HasVertexColors( c)) {
+                            pcMesh->mColors[c][pcMesh->mNumVertices] = pMesh->mColors[c][iIndex];
+                        }
+                    }
+                    // check whether we have bone weights assigned to this vertex
+                    rFace.mIndices[v] = pcMesh->mNumVertices;
+                    if (avPerVertexWeights) {
+                        VertexWeightTable& table = avPerVertexWeights[ pcMesh->mNumVertices ];
+                        if( !table.empty() ) {
+                            for (VertexWeightTable::const_iterator iter =  table.begin();
+                                    iter != table.end();++iter) {
+                                // allocate the bone weight array if necessary
+                                BoneWeightList* pcWeightList = (BoneWeightList*)pcMesh->mBones[(*iter).first];
+                                if (nullptr == pcWeightList) {
+                                    pcMesh->mBones[(*iter).first] = (aiBone*)(pcWeightList = new BoneWeightList());
+                                }
+                                pcWeightList->push_back(aiVertexWeight(pcMesh->mNumVertices,(*iter).second));
+                            }
+                        }
+                    }
+
+                    avWasCopied[iIndex] = pcMesh->mNumVertices;
+                    pcMesh->mNumVertices++;
+                }
+                ++iBase;
+                if(pcMesh->mNumVertices == iOutVertexNum) {
+                    // break here. The face is only added if it was complete
+                    break;
+                }
+            }
+
+            // check which bones we'll need to create for this submesh
+            if (pMesh->HasBones()) {
+                aiBone** ppCurrent = pcMesh->mBones;
+                for (unsigned int k = 0; k < pMesh->mNumBones;++k) {
+                    // check whether the bone is existing
+                    BoneWeightList* pcWeightList;
+                    if ((pcWeightList = (BoneWeightList*)pcMesh->mBones[k])) {
+                        aiBone* pcOldBone = pMesh->mBones[k];
+                        aiBone* pcOut( nullptr );
+                        *ppCurrent++ = pcOut = new aiBone();
+                        pcOut->mName = aiString(pcOldBone->mName);
+                        pcOut->mOffsetMatrix = pcOldBone->mOffsetMatrix;
+                        pcOut->mNumWeights = (unsigned int)pcWeightList->size();
+                        pcOut->mWeights = new aiVertexWeight[pcOut->mNumWeights];
+
+                        // copy the vertex weights
+                        ::memcpy(pcOut->mWeights,&pcWeightList->operator[](0),
+                            pcOut->mNumWeights * sizeof(aiVertexWeight));
+
+                        // delete the temporary bone weight list
+                        delete pcWeightList;
+                        pcMesh->mNumBones++;
+                    }
+                }
+            }
+
+            // copy the face list to the mesh
+            pcMesh->mFaces = new aiFace[vFaces.size()];
+            pcMesh->mNumFaces = (unsigned int)vFaces.size();
+
+            for (unsigned int p = 0; p < pcMesh->mNumFaces;++p) {
+                pcMesh->mFaces[p] = vFaces[p];
+            }
+
+            // add the newly created mesh to the list
+            avList.push_back(std::pair<aiMesh*, unsigned int>(pcMesh,a));
+
+            if (iBase == pMesh->mNumFaces) {
+                // have all faces ... finish the outer loop, too
+                break;
+            }
+        }
+
+        // delete the per-vertex weight list again
+        delete[] avPerVertexWeights;
+
+        // now delete the old mesh data
+        delete pMesh;
+        return;
+    }
+    avList.push_back(std::pair<aiMesh*, unsigned int>(pMesh,a));
+}
diff --git a/thirdparty/assimp/code/SplitLargeMeshes.h b/thirdparty/assimp/code/SplitLargeMeshes.h
new file mode 100644
index 0000000000..77f089ce7e
--- /dev/null
+++ b/thirdparty/assimp/code/SplitLargeMeshes.h
@@ -0,0 +1,210 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to split large meshes into submeshes
+ */
+#ifndef AI_SPLITLARGEMESHES_H_INC
+#define AI_SPLITLARGEMESHES_H_INC
+
+#include <vector>
+#include "BaseProcess.h"
+
+#include <assimp/mesh.h>
+#include <assimp/scene.h>
+
+class SplitLargeMeshesTest;
+
+namespace Assimp
+{
+
+class SplitLargeMeshesProcess_Triangle;
+class SplitLargeMeshesProcess_Vertex;
+
+// NOTE: If you change these limits, don't forget to change the
+// corresponding values in all Assimp ports
+
+// **********************************************************
+// Java: ConfigProperty.java,
+//  ConfigProperty.DEFAULT_VERTEX_SPLIT_LIMIT
+//  ConfigProperty.DEFAULT_TRIANGLE_SPLIT_LIMIT
+// **********************************************************
+
+// default limit for vertices
+#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
+#   define AI_SLM_DEFAULT_MAX_VERTICES      1000000
+#endif
+
+// default limit for triangles
+#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
+#   define AI_SLM_DEFAULT_MAX_TRIANGLES     1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** Post-processing filter to split large meshes into sub-meshes
+ *
+ * Applied BEFORE the JoinVertices-Step occurs.
+ * Returns NON-UNIQUE vertices, splits by triangle number.
+*/
+class ASSIMP_API SplitLargeMeshesProcess_Triangle : public BaseProcess
+{
+    friend class SplitLargeMeshesProcess_Vertex;
+
+public:
+
+    SplitLargeMeshesProcess_Triangle();
+    ~SplitLargeMeshesProcess_Triangle();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag.
+    * @param pFlags The processing flags the importer was called with. A
+    *   bitwise combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields,
+    *   false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    virtual void SetupProperties(const Importer* pImp);
+
+
+    //! Set the split limit - needed for unit testing
+    inline void SetLimit(unsigned int l)
+        {LIMIT = l;}
+
+    //! Get the split limit
+    inline unsigned int GetLimit() const
+        {return LIMIT;}
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    //! Apply the algorithm to a given mesh
+    void SplitMesh (unsigned int a, aiMesh* pcMesh,
+        std::vector<std::pair<aiMesh*, unsigned int> >& avList);
+
+    // -------------------------------------------------------------------
+    //! Update a node in the asset after a few of its meshes
+    //! have been split
+    static void UpdateNode(aiNode* pcNode,
+        const std::vector<std::pair<aiMesh*, unsigned int> >& avList);
+
+public:
+    //! Triangle limit
+    unsigned int LIMIT;
+};
+
+
+// ---------------------------------------------------------------------------
+/** Post-processing filter to split large meshes into sub-meshes
+ *
+ * Applied AFTER the JoinVertices-Step occurs.
+ * Returns UNIQUE vertices, splits by vertex number.
+*/
+class ASSIMP_API SplitLargeMeshesProcess_Vertex : public BaseProcess
+{
+public:
+
+    SplitLargeMeshesProcess_Vertex();
+    ~SplitLargeMeshesProcess_Vertex();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+    * @param pFlags The processing flags the importer was called with. A bitwise
+    *   combination of #aiPostProcessSteps.
+    * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Called prior to ExecuteOnScene().
+    * The function is a request to the process to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    virtual void SetupProperties(const Importer* pImp);
+
+
+    //! Set the split limit - needed for unit testing
+    inline void SetLimit(unsigned int l)
+        {LIMIT = l;}
+
+    //! Get the split limit
+    inline unsigned int GetLimit() const
+        {return LIMIT;}
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    //! Apply the algorithm to a given mesh
+    void SplitMesh (unsigned int a, aiMesh* pcMesh,
+        std::vector<std::pair<aiMesh*, unsigned int> >& avList);
+
+    // NOTE: Reuse SplitLargeMeshesProcess_Triangle::UpdateNode()
+
+public:
+    //! Triangle limit
+    unsigned int LIMIT;
+};
+
+} // end of namespace Assimp
+
+#endif // !!AI_SPLITLARGEMESHES_H_INC
diff --git a/thirdparty/assimp/code/StandardShapes.cpp b/thirdparty/assimp/code/StandardShapes.cpp
new file mode 100644
index 0000000000..2e5100130f
--- /dev/null
+++ b/thirdparty/assimp/code/StandardShapes.cpp
@@ -0,0 +1,507 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file   StandardShapes.cpp
+ *  @brief  Implementation of the StandardShapes class
+ *
+ *  The primitive geometry data comes from
+ *  http://geometrictools.com/Documentation/PlatonicSolids.pdf.
+ */
+
+#include <assimp/StandardShapes.h>
+#include <assimp/StringComparison.h>
+#include <stddef.h>
+#include <assimp/Defines.h>
+#include <assimp/mesh.h>
+
+namespace Assimp    {
+
+
+# define ADD_TRIANGLE(n0,n1,n2) \
+    positions.push_back(n0); \
+    positions.push_back(n1); \
+    positions.push_back(n2);
+
+#   define ADD_PENTAGON(n0,n1,n2,n3,n4) \
+    if (polygons) \
+    { \
+        positions.push_back(n0); \
+        positions.push_back(n1); \
+        positions.push_back(n2); \
+        positions.push_back(n3); \
+        positions.push_back(n4); \
+    } \
+    else \
+    { \
+        ADD_TRIANGLE(n0, n1, n2) \
+        ADD_TRIANGLE(n0, n2, n3) \
+        ADD_TRIANGLE(n0, n3, n4) \
+    }
+
+#   define ADD_QUAD(n0,n1,n2,n3) \
+    if (polygons) \
+    { \
+        positions.push_back(n0); \
+        positions.push_back(n1); \
+        positions.push_back(n2); \
+        positions.push_back(n3); \
+    } \
+    else \
+    { \
+        ADD_TRIANGLE(n0, n1, n2) \
+        ADD_TRIANGLE(n0, n2, n3) \
+    }
+
+
+// ------------------------------------------------------------------------------------------------
+// Fast subdivision for a mesh whose verts have a magnitude of 1
+void Subdivide(std::vector<aiVector3D>& positions)
+{
+    // assume this to be constant - (fixme: must be 1.0? I think so)
+    const ai_real fl1 = positions[0].Length();
+
+    unsigned int origSize = (unsigned int)positions.size();
+    for (unsigned int i = 0 ; i < origSize ; i+=3)
+    {
+        aiVector3D& tv0 = positions[i];
+        aiVector3D& tv1 = positions[i+1];
+        aiVector3D& tv2 = positions[i+2];
+
+        aiVector3D a = tv0, b = tv1, c = tv2;
+        aiVector3D v1 = aiVector3D(a.x+b.x, a.y+b.y, a.z+b.z).Normalize()*fl1;
+        aiVector3D v2 = aiVector3D(a.x+c.x, a.y+c.y, a.z+c.z).Normalize()*fl1;
+        aiVector3D v3 = aiVector3D(b.x+c.x, b.y+c.y, b.z+c.z).Normalize()*fl1;
+
+        tv0 = v1; tv1 = v3; tv2 = v2; // overwrite the original
+        ADD_TRIANGLE(v1, v2, a);
+        ADD_TRIANGLE(v2, v3, c);
+        ADD_TRIANGLE(v3, v1, b);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Construct a mesh from given vertex positions
+aiMesh* StandardShapes::MakeMesh(const std::vector<aiVector3D>& positions,
+    unsigned int numIndices)
+{
+    if (positions.empty() || !numIndices) return NULL;
+
+    // Determine which kinds of primitives the mesh consists of
+    aiMesh* out = new aiMesh();
+    switch (numIndices) {
+        case 1:
+            out->mPrimitiveTypes = aiPrimitiveType_POINT;
+            break;
+        case 2:
+            out->mPrimitiveTypes = aiPrimitiveType_LINE;
+            break;
+        case 3:
+            out->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
+            break;
+        default:
+            out->mPrimitiveTypes = aiPrimitiveType_POLYGON;
+            break;
+    };
+
+    out->mNumFaces = (unsigned int)positions.size() / numIndices;
+    out->mFaces = new aiFace[out->mNumFaces];
+    for (unsigned int i = 0, a = 0; i < out->mNumFaces;++i) {
+        aiFace& f = out->mFaces[i];
+        f.mNumIndices = numIndices;
+        f.mIndices = new unsigned int[numIndices];
+        for (unsigned int j = 0; i < numIndices; ++i, ++a) {
+            f.mIndices[j] = a;
+        }
+    }
+    out->mNumVertices = (unsigned int)positions.size();
+    out->mVertices = new aiVector3D[out->mNumVertices];
+    ::memcpy(out->mVertices,&positions[0],out->mNumVertices*sizeof(aiVector3D));
+
+    return out;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Construct a mesh with a specific shape (callback)
+aiMesh* StandardShapes::MakeMesh ( unsigned int (*GenerateFunc)(
+    std::vector<aiVector3D>&))
+{
+    std::vector<aiVector3D> temp;
+    unsigned num = (*GenerateFunc)(temp);
+    return MakeMesh(temp,num);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Construct a mesh with a specific shape (callback)
+aiMesh* StandardShapes::MakeMesh ( unsigned int (*GenerateFunc)(
+    std::vector<aiVector3D>&, bool))
+{
+    std::vector<aiVector3D> temp;
+    unsigned num = (*GenerateFunc)(temp,true);
+    return MakeMesh(temp,num);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Construct a mesh with a specific shape (callback)
+aiMesh* StandardShapes::MakeMesh (unsigned int num,  void (*GenerateFunc)(
+    unsigned int,std::vector<aiVector3D>&))
+{
+    std::vector<aiVector3D> temp;
+    (*GenerateFunc)(num,temp);
+    return MakeMesh(temp,3);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build an incosahedron with points.magnitude == 1
+unsigned int StandardShapes::MakeIcosahedron(std::vector<aiVector3D>& positions)
+{
+    positions.reserve(positions.size()+60);
+
+    const ai_real t = ( ai_real( 1.0 )+ ai_real( 2.236067977 ) ) / ai_real( 2.0 );
+    const ai_real s = std::sqrt(ai_real(1.0) + t*t);
+
+    const aiVector3D v0  = aiVector3D(t,1.0, 0.0)/s;
+    const aiVector3D v1  = aiVector3D(-t,1.0, 0.0)/s;
+    const aiVector3D v2  = aiVector3D(t,-1.0, 0.0)/s;
+    const aiVector3D v3  = aiVector3D(-t,-1.0, 0.0)/s;
+    const aiVector3D v4  = aiVector3D(1.0, 0.0, t)/s;
+    const aiVector3D v5  = aiVector3D(1.0, 0.0,-t)/s;
+    const aiVector3D v6  = aiVector3D(-1.0, 0.0,t)/s;
+    const aiVector3D v7  = aiVector3D(-1.0, 0.0,-t)/s;
+    const aiVector3D v8  = aiVector3D(0.0, t, 1.0)/s;
+    const aiVector3D v9  = aiVector3D(0.0,-t, 1.0)/s;
+    const aiVector3D v10 = aiVector3D(0.0, t,-1.0)/s;
+    const aiVector3D v11 = aiVector3D(0.0,-t,-1.0)/s;
+
+    ADD_TRIANGLE(v0,v8,v4);
+    ADD_TRIANGLE(v0,v5,v10);
+    ADD_TRIANGLE(v2,v4,v9);
+    ADD_TRIANGLE(v2,v11,v5);
+
+    ADD_TRIANGLE(v1,v6,v8);
+    ADD_TRIANGLE(v1,v10,v7);
+    ADD_TRIANGLE(v3,v9,v6);
+    ADD_TRIANGLE(v3,v7,v11);
+
+    ADD_TRIANGLE(v0,v10,v8);
+    ADD_TRIANGLE(v1,v8,v10);
+    ADD_TRIANGLE(v2,v9,v11);
+    ADD_TRIANGLE(v3,v11,v9);
+
+    ADD_TRIANGLE(v4,v2,v0);
+    ADD_TRIANGLE(v5,v0,v2);
+    ADD_TRIANGLE(v6,v1,v3);
+    ADD_TRIANGLE(v7,v3,v1);
+
+    ADD_TRIANGLE(v8,v6,v4);
+    ADD_TRIANGLE(v9,v4,v6);
+    ADD_TRIANGLE(v10,v5,v7);
+    ADD_TRIANGLE(v11,v7,v5);
+    return 3;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a dodecahedron with points.magnitude == 1
+unsigned int StandardShapes::MakeDodecahedron(std::vector<aiVector3D>& positions,
+    bool polygons /*= false*/)
+{
+    positions.reserve(positions.size()+108);
+
+    const ai_real a = ai_real( 1.0 ) / ai_real(1.7320508);
+    const ai_real b = std::sqrt(( ai_real( 3.0 )- ai_real( 2.23606797))/ ai_real( 6.0) );
+    const ai_real c = std::sqrt(( ai_real( 3.0 )+ ai_real( 2.23606797f))/ ai_real( 6.0) );
+
+    const aiVector3D v0  = aiVector3D(a,a,a);
+    const aiVector3D v1  = aiVector3D(a,a,-a);
+    const aiVector3D v2  = aiVector3D(a,-a,a);
+    const aiVector3D v3  = aiVector3D(a,-a,-a);
+    const aiVector3D v4  = aiVector3D(-a,a,a);
+    const aiVector3D v5  = aiVector3D(-a,a,-a);
+    const aiVector3D v6  = aiVector3D(-a,-a,a);
+    const aiVector3D v7  = aiVector3D(-a,-a,-a);
+    const aiVector3D v8  = aiVector3D(b,c,0.0);
+    const aiVector3D v9  = aiVector3D(-b,c,0.0);
+    const aiVector3D v10 = aiVector3D(b,-c,0.0);
+    const aiVector3D v11 = aiVector3D(-b,-c,0.0);
+    const aiVector3D v12 = aiVector3D(c, 0.0, b);
+    const aiVector3D v13 = aiVector3D(c, 0.0, -b);
+    const aiVector3D v14 = aiVector3D(-c, 0.0, b);
+    const aiVector3D v15 = aiVector3D(-c, 0.0, -b);
+    const aiVector3D v16 = aiVector3D(0.0, b, c);
+    const aiVector3D v17 = aiVector3D(0.0, -b, c);
+    const aiVector3D v18 = aiVector3D(0.0, b, -c);
+    const aiVector3D v19 = aiVector3D(0.0, -b, -c);
+
+    ADD_PENTAGON(v0, v8, v9, v4, v16);
+    ADD_PENTAGON(v0, v12, v13, v1, v8);
+    ADD_PENTAGON(v0, v16, v17, v2, v12);
+    ADD_PENTAGON(v8, v1, v18, v5, v9);
+    ADD_PENTAGON(v12, v2, v10, v3, v13);
+    ADD_PENTAGON(v16, v4, v14, v6, v17);
+    ADD_PENTAGON(v9, v5, v15, v14, v4);
+
+    ADD_PENTAGON(v6, v11, v10, v2, v17);
+    ADD_PENTAGON(v3, v19, v18, v1, v13);
+    ADD_PENTAGON(v7, v15, v5, v18, v19);
+    ADD_PENTAGON(v7, v11, v6, v14, v15);
+    ADD_PENTAGON(v7, v19, v3, v10, v11);
+    return (polygons ? 5 : 3);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build an octahedron with points.magnitude == 1
+unsigned int StandardShapes::MakeOctahedron(std::vector<aiVector3D>& positions)
+{
+    positions.reserve(positions.size()+24);
+
+    const aiVector3D v0  = aiVector3D(1.0, 0.0, 0.0) ;
+    const aiVector3D v1  = aiVector3D(-1.0, 0.0, 0.0);
+    const aiVector3D v2  = aiVector3D(0.0, 1.0, 0.0);
+    const aiVector3D v3  = aiVector3D(0.0, -1.0, 0.0);
+    const aiVector3D v4  = aiVector3D(0.0, 0.0, 1.0);
+    const aiVector3D v5  = aiVector3D(0.0, 0.0, -1.0);
+
+    ADD_TRIANGLE(v4,v0,v2);
+    ADD_TRIANGLE(v4,v2,v1);
+    ADD_TRIANGLE(v4,v1,v3);
+    ADD_TRIANGLE(v4,v3,v0);
+
+    ADD_TRIANGLE(v5,v2,v0);
+    ADD_TRIANGLE(v5,v1,v2);
+    ADD_TRIANGLE(v5,v3,v1);
+    ADD_TRIANGLE(v5,v0,v3);
+    return 3;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a tetrahedron with points.magnitude == 1
+unsigned int StandardShapes::MakeTetrahedron(std::vector<aiVector3D>& positions)
+{
+    positions.reserve(positions.size()+9);
+
+    const ai_real invThree = ai_real( 1.0 ) / ai_real( 3.0 );
+    const ai_real a = ai_real( 1.41421 ) * invThree;
+    const ai_real b = ai_real( 2.4494 ) * invThree;
+
+    const aiVector3D v0  = aiVector3D(0.0,0.0,1.0);
+    const aiVector3D v1  = aiVector3D(2*a,0,-invThree );
+    const aiVector3D v2  = aiVector3D(-a,b,-invThree );
+    const aiVector3D v3  = aiVector3D(-a,-b,-invThree );
+
+    ADD_TRIANGLE(v0,v1,v2);
+    ADD_TRIANGLE(v0,v2,v3);
+    ADD_TRIANGLE(v0,v3,v1);
+    ADD_TRIANGLE(v1,v3,v2);
+    return 3;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a hexahedron with points.magnitude == 1
+unsigned int StandardShapes::MakeHexahedron(std::vector<aiVector3D>& positions,
+    bool polygons /*= false*/)
+{
+    positions.reserve(positions.size()+36);
+    const ai_real length = ai_real(1.0)/ai_real(1.73205080);
+
+    const aiVector3D v0  = aiVector3D(-1.0,-1.0,-1.0)*length;
+    const aiVector3D v1  = aiVector3D(1.0,-1.0,-1.0)*length;
+    const aiVector3D v2  = aiVector3D(1.0,1.0,-1.0)*length;
+    const aiVector3D v3  = aiVector3D(-1.0,1.0,-1.0)*length;
+    const aiVector3D v4  = aiVector3D(-1.0,-1.0,1.0)*length;
+    const aiVector3D v5  = aiVector3D(1.0,-1.0,1.0)*length;
+    const aiVector3D v6  = aiVector3D(1.0,1.0,1.0)*length;
+    const aiVector3D v7  = aiVector3D(-1.0,1.0,1.0)*length;
+
+    ADD_QUAD(v0,v3,v2,v1);
+    ADD_QUAD(v0,v1,v5,v4);
+    ADD_QUAD(v0,v4,v7,v3);
+    ADD_QUAD(v6,v5,v1,v2);
+    ADD_QUAD(v6,v2,v3,v7);
+    ADD_QUAD(v6,v7,v4,v5);
+    return (polygons ? 4 : 3);
+}
+
+// Cleanup ...
+#undef ADD_TRIANGLE
+#undef ADD_QUAD
+#undef ADD_PENTAGON
+
+// ------------------------------------------------------------------------------------------------
+// Create a subdivision sphere
+void StandardShapes::MakeSphere(unsigned int    tess,
+    std::vector<aiVector3D>& positions)
+{
+    // Reserve enough storage. Every subdivision
+    // splits each triangle in 4, the icosahedron consists of 60 verts
+    positions.reserve(positions.size()+60 * integer_pow(4, tess));
+
+    // Construct an icosahedron to start with
+    MakeIcosahedron(positions);
+
+    // ... and subdivide it until the requested output
+    // tessellation is reached
+    for (unsigned int i = 0; i<tess;++i)
+        Subdivide(positions);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a cone
+void StandardShapes::MakeCone(ai_real height,ai_real radius1,
+    ai_real radius2,unsigned int tess,
+    std::vector<aiVector3D>& positions,bool bOpen /*= false */)
+{
+    // Sorry, a cone with less than 3 segments makes ABSOLUTELY NO SENSE
+    if (tess < 3 || !height)
+        return;
+
+    size_t old = positions.size();
+
+    // No negative radii
+    radius1 = std::fabs(radius1);
+    radius2 = std::fabs(radius2);
+
+    ai_real halfHeight = height / ai_real(2.0);
+
+    // radius1 is always the smaller one
+    if (radius2 > radius1)
+    {
+        std::swap(radius2,radius1);
+        halfHeight = -halfHeight;
+    }
+    else old = SIZE_MAX;
+
+    // Use a large epsilon to check whether the cone is pointy
+    if (radius1 < (radius2-radius1)*10e-3)radius1 = 0.0;
+
+    // We will need 3*2 verts per segment + 3*2 verts per segment
+    // if the cone is closed
+    const unsigned int mem = tess*6 + (!bOpen ? tess*3 * (radius1 ? 2 : 1) : 0);
+    positions.reserve(positions.size () + mem);
+
+    // Now construct all segments
+    const ai_real angle_delta = (ai_real)AI_MATH_TWO_PI / tess;
+    const ai_real angle_max   = (ai_real)AI_MATH_TWO_PI;
+
+    ai_real s = 1.0; // std::cos(angle == 0);
+    ai_real t = 0.0; // std::sin(angle == 0);
+
+    for (ai_real angle = 0.0; angle < angle_max; )
+    {
+        const aiVector3D v1 = aiVector3D (s * radius1, -halfHeight, t * radius1 );
+        const aiVector3D v2 = aiVector3D (s * radius2,  halfHeight, t * radius2 );
+
+        const ai_real next = angle + angle_delta;
+        ai_real s2 = std::cos(next);
+        ai_real t2 = std::sin(next);
+
+        const aiVector3D v3 = aiVector3D (s2 * radius2,  halfHeight, t2 * radius2 );
+        const aiVector3D v4 = aiVector3D (s2 * radius1, -halfHeight, t2 * radius1 );
+
+        positions.push_back(v1);
+        positions.push_back(v2);
+        positions.push_back(v3);
+        positions.push_back(v4);
+        positions.push_back(v1);
+        positions.push_back(v3);
+
+        if (!bOpen)
+        {
+            // generate the end 'cap'
+            positions.push_back(aiVector3D(s * radius2,  halfHeight, t * radius2 ));
+            positions.push_back(aiVector3D(s2 * radius2,  halfHeight, t2 * radius2 ));
+            positions.push_back(aiVector3D(0.0, halfHeight, 0.0));
+
+
+            if (radius1)
+            {
+                // generate the other end 'cap'
+                positions.push_back(aiVector3D(s * radius1,  -halfHeight, t * radius1 ));
+                positions.push_back(aiVector3D(s2 * radius1,  -halfHeight, t2 * radius1 ));
+                positions.push_back(aiVector3D(0.0, -halfHeight, 0.0));
+
+            }
+        }
+        s = s2;
+        t = t2;
+        angle = next;
+    }
+
+    // Need to flip face order?
+    if ( SIZE_MAX != old )  {
+        for (size_t p = old; p < positions.size();p += 3) {
+            std::swap(positions[p],positions[p+1]);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Build a circle
+void StandardShapes::MakeCircle(ai_real radius, unsigned int tess,
+    std::vector<aiVector3D>& positions)
+{
+    // Sorry, a circle with less than 3 segments makes ABSOLUTELY NO SENSE
+    if (tess < 3 || !radius)
+        return;
+
+    radius = std::fabs(radius);
+
+    // We will need 3 vertices per segment
+    positions.reserve(positions.size()+tess*3);
+
+    const ai_real angle_delta = (ai_real)AI_MATH_TWO_PI / tess;
+    const ai_real angle_max   = (ai_real)AI_MATH_TWO_PI;
+
+    ai_real s = 1.0; // std::cos(angle == 0);
+    ai_real t = 0.0; // std::sin(angle == 0);
+
+    for (ai_real angle = 0.0; angle < angle_max;  )
+    {
+        positions.push_back(aiVector3D(s * radius,0.0,t * radius));
+        angle += angle_delta;
+        s = std::cos(angle);
+        t = std::sin(angle);
+        positions.push_back(aiVector3D(s * radius,0.0,t * radius));
+
+        positions.push_back(aiVector3D(0.0,0.0,0.0));
+    }
+}
+
+} // ! Assimp
diff --git a/thirdparty/assimp/code/StdOStreamLogStream.h b/thirdparty/assimp/code/StdOStreamLogStream.h
new file mode 100644
index 0000000000..893e261a2b
--- /dev/null
+++ b/thirdparty/assimp/code/StdOStreamLogStream.h
@@ -0,0 +1,101 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  StdOStreamLogStream.h
+*  @brief Implementation of StdOStreamLogStream
+*/
+
+#ifndef AI_STROSTREAMLOGSTREAM_H_INC
+#define AI_STROSTREAMLOGSTREAM_H_INC
+
+#include <assimp/LogStream.hpp>
+#include <ostream>
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** @class  StdOStreamLogStream
+ *  @brief  Logs into a std::ostream
+ */
+class StdOStreamLogStream : public LogStream {
+public:
+    /** @brief  Construction from an existing std::ostream
+     *  @param _ostream Output stream to be used
+    */
+    explicit StdOStreamLogStream(std::ostream& _ostream);
+
+    /** @brief  Destructor  */
+    ~StdOStreamLogStream();
+
+    /** @brief  Writer  */
+    void write(const char* message);
+
+private:
+    std::ostream& mOstream;
+};
+
+// ---------------------------------------------------------------------------
+//  Default constructor
+inline StdOStreamLogStream::StdOStreamLogStream(std::ostream& _ostream)
+: mOstream   (_ostream){
+    // empty
+}
+
+// ---------------------------------------------------------------------------
+//  Default constructor
+inline StdOStreamLogStream::~StdOStreamLogStream() {
+    // empty
+}
+
+// ---------------------------------------------------------------------------
+//  Write method
+inline void StdOStreamLogStream::write(const char* message) {
+    mOstream << message;
+    mOstream.flush();
+}
+
+// ---------------------------------------------------------------------------
+
+}   // Namespace Assimp
+
+#endif // guard
diff --git a/thirdparty/assimp/code/Subdivision.cpp b/thirdparty/assimp/code/Subdivision.cpp
new file mode 100644
index 0000000000..19db223a55
--- /dev/null
+++ b/thirdparty/assimp/code/Subdivision.cpp
@@ -0,0 +1,588 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#include <assimp/Subdivision.h>
+#include <assimp/SceneCombiner.h>
+#include <assimp/SpatialSort.h>
+#include "ProcessHelper.h"
+#include <assimp/Vertex.h>
+#include <assimp/ai_assert.h>
+#include <stdio.h>
+
+using namespace Assimp;
+void mydummy() {}
+
+// ------------------------------------------------------------------------------------------------
+/** Subdivider stub class to implement the Catmull-Clarke subdivision algorithm. The
+ *  implementation is basing on recursive refinement. Directly evaluating the result is also
+ *  possible and much quicker, but it depends on lengthy matrix lookup tables. */
+// ------------------------------------------------------------------------------------------------
+class CatmullClarkSubdivider : public Subdivider
+{
+public:
+    void Subdivide (aiMesh* mesh, aiMesh*& out, unsigned int num, bool discard_input);
+    void Subdivide (aiMesh** smesh, size_t nmesh,
+        aiMesh** out, unsigned int num, bool discard_input);
+
+    // ---------------------------------------------------------------------------
+    /** Intermediate description of an edge between two corners of a polygon*/
+    // ---------------------------------------------------------------------------
+    struct Edge
+    {
+        Edge()
+            : ref(0)
+        {}
+        Vertex edge_point, midpoint;
+        unsigned int ref;
+    };
+
+    typedef std::vector<unsigned int> UIntVector;
+    typedef std::map<uint64_t,Edge> EdgeMap;
+
+    // ---------------------------------------------------------------------------
+    // Hashing function to derive an index into an #EdgeMap from two given
+    // 'unsigned int' vertex coordinates (!!distinct coordinates - same
+    // vertex position == same index!!).
+    // NOTE - this leads to rare hash collisions if a) sizeof(unsigned int)>4
+    // and (id[0]>2^32-1 or id[0]>2^32-1).
+    // MAKE_EDGE_HASH() uses temporaries, so INIT_EDGE_HASH() needs to be put
+    // at the head of every function which is about to use MAKE_EDGE_HASH().
+    // Reason is that the hash is that hash construction needs to hold the
+    // invariant id0<id1 to identify an edge - else two hashes would refer
+    // to the same edge.
+    // ---------------------------------------------------------------------------
+#define MAKE_EDGE_HASH(id0,id1) (eh_tmp0__=id0,eh_tmp1__=id1,\
+    (eh_tmp0__<eh_tmp1__?std::swap(eh_tmp0__,eh_tmp1__):mydummy()),(uint64_t)eh_tmp0__^((uint64_t)eh_tmp1__<<32u))
+
+
+#define INIT_EDGE_HASH_TEMPORARIES()\
+    unsigned int eh_tmp0__, eh_tmp1__;
+
+private:
+    void InternSubdivide (const aiMesh* const * smesh,
+        size_t nmesh,aiMesh** out, unsigned int num);
+};
+
+
+// ------------------------------------------------------------------------------------------------
+// Construct a subdivider of a specific type
+Subdivider* Subdivider::Create (Algorithm algo)
+{
+    switch (algo)
+    {
+    case CATMULL_CLARKE:
+        return new CatmullClarkSubdivider();
+    };
+
+    ai_assert(false);
+    return NULL; // shouldn't happen
+}
+
+// ------------------------------------------------------------------------------------------------
+// Call the Catmull Clark subdivision algorithm for one mesh
+void  CatmullClarkSubdivider::Subdivide (
+    aiMesh* mesh,
+    aiMesh*& out,
+    unsigned int num,
+    bool discard_input
+    )
+{
+    ai_assert(mesh != out);
+    
+    Subdivide(&mesh,1,&out,num,discard_input);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Call the Catmull Clark subdivision algorithm for multiple meshes
+void CatmullClarkSubdivider::Subdivide (
+    aiMesh** smesh,
+    size_t nmesh,
+    aiMesh** out,
+    unsigned int num,
+    bool discard_input
+    )
+{
+    ai_assert( NULL != smesh );
+    ai_assert( NULL != out );
+
+    // course, both regions may not overlap
+    ai_assert(smesh<out || smesh+nmesh>out+nmesh);
+    if (!num) {
+        // No subdivision at all. Need to copy all the meshes .. argh.
+        if (discard_input) {
+            for (size_t s = 0; s < nmesh; ++s) {
+                out[s] = smesh[s];
+                smesh[s] = NULL;
+            }
+        }
+        else {
+            for (size_t s = 0; s < nmesh; ++s) {
+                SceneCombiner::Copy(out+s,smesh[s]);
+            }
+        }
+        return;
+    }
+
+    std::vector<aiMesh*> inmeshes;
+    std::vector<aiMesh*> outmeshes;
+    std::vector<unsigned int> maptbl;
+
+    inmeshes.reserve(nmesh);
+    outmeshes.reserve(nmesh);
+    maptbl.reserve(nmesh);
+
+    // Remove pure line and point meshes from the working set to reduce the
+    // number of edge cases the subdivider is forced to deal with. Line and
+    // point meshes are simply passed through.
+    for (size_t s = 0; s < nmesh; ++s) {
+        aiMesh* i = smesh[s];
+        // FIX - mPrimitiveTypes might not yet be initialized
+        if (i->mPrimitiveTypes && (i->mPrimitiveTypes & (aiPrimitiveType_LINE|aiPrimitiveType_POINT))==i->mPrimitiveTypes) {
+            ASSIMP_LOG_DEBUG("Catmull-Clark Subdivider: Skipping pure line/point mesh");
+
+            if (discard_input) {
+                out[s] = i;
+                smesh[s] = NULL;
+            }
+            else {
+                SceneCombiner::Copy(out+s,i);
+            }
+            continue;
+        }
+
+        outmeshes.push_back(NULL);inmeshes.push_back(i);
+        maptbl.push_back(static_cast<unsigned int>(s));
+    }
+
+    // Do the actual subdivision on the preallocated storage. InternSubdivide
+    // *always* assumes that enough storage is available, it does not bother
+    // checking any ranges.
+    ai_assert(inmeshes.size()==outmeshes.size()&&inmeshes.size()==maptbl.size());
+    if (inmeshes.empty()) {
+        ASSIMP_LOG_WARN("Catmull-Clark Subdivider: Pure point/line scene, I can't do anything");
+        return;
+    }
+    InternSubdivide(&inmeshes.front(),inmeshes.size(),&outmeshes.front(),num);
+    for (unsigned int i = 0; i < maptbl.size(); ++i) {
+        ai_assert(nullptr != outmeshes[i]);
+        out[maptbl[i]] = outmeshes[i];
+    }
+
+    if (discard_input) {
+        for (size_t s = 0; s < nmesh; ++s) {
+            delete smesh[s];
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Note - this is an implementation of the standard (recursive) Cm-Cl algorithm without further
+// optimizations (except we're using some nice LUTs). A description of the algorithm can be found
+// here: http://en.wikipedia.org/wiki/Catmull-Clark_subdivision_surface
+//
+// The code is mostly O(n), however parts are O(nlogn) which is therefore the algorithm's
+// expected total runtime complexity. The implementation is able to work in-place on the same
+// mesh arrays. Calling #InternSubdivide() directly is not encouraged. The code can operate
+// in-place unless 'smesh' and 'out' are equal (no strange overlaps or reorderings).
+// Previous data is replaced/deleted then.
+// ------------------------------------------------------------------------------------------------
+void CatmullClarkSubdivider::InternSubdivide (
+    const aiMesh* const * smesh,
+    size_t nmesh,
+    aiMesh** out,
+    unsigned int num
+    )
+{
+    ai_assert(NULL != smesh && NULL != out);
+    INIT_EDGE_HASH_TEMPORARIES();
+
+    // no subdivision requested or end of recursive refinement
+    if (!num) {
+        return;
+    }
+
+    UIntVector maptbl;
+    SpatialSort spatial;
+
+    // ---------------------------------------------------------------------
+    // 0. Offset table to index all meshes continuously, generate a spatially
+    // sorted representation of all vertices in all meshes.
+    // ---------------------------------------------------------------------
+    typedef std::pair<unsigned int,unsigned int> IntPair;
+    std::vector<IntPair> moffsets(nmesh);
+    unsigned int totfaces = 0, totvert = 0;
+    for (size_t t = 0; t < nmesh; ++t) {
+        const aiMesh* mesh = smesh[t];
+
+        spatial.Append(mesh->mVertices,mesh->mNumVertices,sizeof(aiVector3D),false);
+        moffsets[t] = IntPair(totfaces,totvert);
+
+        totfaces += mesh->mNumFaces;
+        totvert  += mesh->mNumVertices;
+    }
+
+    spatial.Finalize();
+    const unsigned int num_unique = spatial.GenerateMappingTable(maptbl,ComputePositionEpsilon(smesh,nmesh));
+
+
+#define FLATTEN_VERTEX_IDX(mesh_idx, vert_idx) (moffsets[mesh_idx].second+vert_idx)
+#define   FLATTEN_FACE_IDX(mesh_idx, face_idx) (moffsets[mesh_idx].first+face_idx)
+
+    // ---------------------------------------------------------------------
+    // 1. Compute the centroid point for all faces
+    // ---------------------------------------------------------------------
+    std::vector<Vertex> centroids(totfaces);
+    unsigned int nfacesout = 0;
+    for (size_t t = 0, n = 0; t < nmesh; ++t) {
+        const aiMesh* mesh = smesh[t];
+        for (unsigned int i = 0; i < mesh->mNumFaces;++i,++n)
+        {
+            const aiFace& face = mesh->mFaces[i];
+            Vertex& c = centroids[n];
+
+            for (unsigned int a = 0; a < face.mNumIndices;++a) {
+                c += Vertex(mesh,face.mIndices[a]);
+            }
+
+            c /= static_cast<float>(face.mNumIndices);
+            nfacesout += face.mNumIndices;
+        }
+    }
+
+    {
+    // we want edges to go away before the recursive calls so begin a new scope
+    EdgeMap edges;
+
+    // ---------------------------------------------------------------------
+    // 2. Set each edge point to be the average of all neighbouring
+    // face points and original points. Every edge exists twice
+    // if there is a neighboring face.
+    // ---------------------------------------------------------------------
+    for (size_t t = 0; t < nmesh; ++t) {
+        const aiMesh* mesh = smesh[t];
+
+        for (unsigned int i = 0; i < mesh->mNumFaces;++i)   {
+            const aiFace& face = mesh->mFaces[i];
+
+            for (unsigned int p =0; p< face.mNumIndices; ++p) {
+                const unsigned int id[] = {
+                    face.mIndices[p],
+                    face.mIndices[p==face.mNumIndices-1?0:p+1]
+                };
+                const unsigned int mp[] = {
+                    maptbl[FLATTEN_VERTEX_IDX(t,id[0])],
+                    maptbl[FLATTEN_VERTEX_IDX(t,id[1])]
+                };
+
+                Edge& e = edges[MAKE_EDGE_HASH(mp[0],mp[1])];
+                e.ref++;
+                if (e.ref<=2) {
+                    if (e.ref==1) { // original points (end points) - add only once
+                        e.edge_point = e.midpoint = Vertex(mesh,id[0])+Vertex(mesh,id[1]);
+                        e.midpoint *= 0.5f;
+                    }
+                    e.edge_point += centroids[FLATTEN_FACE_IDX(t,i)];
+                }
+            }
+        }
+    }
+
+    // ---------------------------------------------------------------------
+    // 3. Normalize edge points
+    // ---------------------------------------------------------------------
+    {unsigned int bad_cnt = 0;
+    for (EdgeMap::iterator it = edges.begin(); it != edges.end(); ++it) {
+        if ((*it).second.ref < 2) {
+            ai_assert((*it).second.ref);
+            ++bad_cnt;
+        }
+        (*it).second.edge_point *= 1.f/((*it).second.ref+2.f);
+    }
+
+    if (bad_cnt) {
+        // Report the number of bad edges. bad edges are referenced by less than two
+        // faces in the mesh. They occur at outer model boundaries in non-closed
+        // shapes.
+        ASSIMP_LOG_DEBUG_F("Catmull-Clark Subdivider: got ", bad_cnt, " bad edges touching only one face (totally ", 
+            static_cast<unsigned int>(edges.size()), " edges). ");
+    }}
+
+    // ---------------------------------------------------------------------
+    // 4. Compute a vertex-face adjacency table. We can't reuse the code
+    // from VertexTriangleAdjacency because we need the table for multiple
+    // meshes and out vertex indices need to be mapped to distinct values
+    // first.
+    // ---------------------------------------------------------------------
+    UIntVector faceadjac(nfacesout), cntadjfac(maptbl.size(),0), ofsadjvec(maptbl.size()+1,0); {
+    for (size_t t = 0; t < nmesh; ++t) {
+        const aiMesh* const minp = smesh[t];
+        for (unsigned int i = 0; i < minp->mNumFaces; ++i) {
+
+            const aiFace& f = minp->mFaces[i];
+            for (unsigned int n = 0; n < f.mNumIndices; ++n) {
+                ++cntadjfac[maptbl[FLATTEN_VERTEX_IDX(t,f.mIndices[n])]];
+            }
+        }
+    }
+    unsigned int cur = 0;
+    for (size_t i = 0; i < cntadjfac.size(); ++i) {
+        ofsadjvec[i+1] = cur;
+        cur += cntadjfac[i];
+    }
+    for (size_t t = 0; t < nmesh; ++t) {
+        const aiMesh* const minp = smesh[t];
+        for (unsigned int i = 0; i < minp->mNumFaces; ++i) {
+
+            const aiFace& f = minp->mFaces[i];
+            for (unsigned int n = 0; n < f.mNumIndices; ++n) {
+                faceadjac[ofsadjvec[1+maptbl[FLATTEN_VERTEX_IDX(t,f.mIndices[n])]]++] = FLATTEN_FACE_IDX(t,i);
+            }
+        }
+    }
+
+    // check the other way round for consistency
+#ifdef ASSIMP_BUILD_DEBUG
+
+    for (size_t t = 0; t < ofsadjvec.size()-1; ++t) {
+        for (unsigned int m = 0; m <  cntadjfac[t]; ++m) {
+            const unsigned int fidx = faceadjac[ofsadjvec[t]+m];
+            ai_assert(fidx < totfaces);
+            for (size_t n = 1; n < nmesh; ++n) {
+
+                if (moffsets[n].first > fidx) {
+                    const aiMesh* msh = smesh[--n];
+                    const aiFace& f = msh->mFaces[fidx-moffsets[n].first];
+
+                    bool haveit = false;
+                    for (unsigned int i = 0; i < f.mNumIndices; ++i) {
+                        if (maptbl[FLATTEN_VERTEX_IDX(n,f.mIndices[i])]==(unsigned int)t) {
+                            haveit = true;
+                            break;
+                        }
+                    }
+                    ai_assert(haveit);
+                    if (!haveit) {
+                        ASSIMP_LOG_DEBUG("Catmull-Clark Subdivider: Index not used");
+                    }
+                    break;
+                }
+            }
+        }
+    }
+
+#endif
+    }
+
+#define GET_ADJACENT_FACES_AND_CNT(vidx,fstartout,numout) \
+    fstartout = &faceadjac[ofsadjvec[vidx]], numout = cntadjfac[vidx]
+
+    typedef std::pair<bool,Vertex> TouchedOVertex;
+    std::vector<TouchedOVertex > new_points(num_unique,TouchedOVertex(false,Vertex()));
+    // ---------------------------------------------------------------------
+    // 5. Spawn a quad from each face point to the corresponding edge points
+    // the original points being the fourth quad points.
+    // ---------------------------------------------------------------------
+    for (size_t t = 0; t < nmesh; ++t) {
+        const aiMesh* const minp = smesh[t];
+        aiMesh* const mout = out[t] = new aiMesh();
+
+        for (unsigned int a  = 0; a < minp->mNumFaces; ++a) {
+            mout->mNumFaces += minp->mFaces[a].mNumIndices;
+        }
+
+        // We need random access to the old face buffer, so reuse is not possible.
+        mout->mFaces = new aiFace[mout->mNumFaces];
+
+        mout->mNumVertices = mout->mNumFaces*4;
+        mout->mVertices = new aiVector3D[mout->mNumVertices];
+
+        // quads only, keep material index
+        mout->mPrimitiveTypes = aiPrimitiveType_POLYGON;
+        mout->mMaterialIndex = minp->mMaterialIndex;
+
+        if (minp->HasNormals()) {
+            mout->mNormals = new aiVector3D[mout->mNumVertices];
+        }
+
+        if (minp->HasTangentsAndBitangents()) {
+            mout->mTangents = new aiVector3D[mout->mNumVertices];
+            mout->mBitangents = new aiVector3D[mout->mNumVertices];
+        }
+
+        for(unsigned int i = 0; minp->HasTextureCoords(i); ++i) {
+            mout->mTextureCoords[i] = new aiVector3D[mout->mNumVertices];
+            mout->mNumUVComponents[i] = minp->mNumUVComponents[i];
+        }
+
+        for(unsigned int i = 0; minp->HasVertexColors(i); ++i) {
+            mout->mColors[i] = new aiColor4D[mout->mNumVertices];
+        }
+
+        mout->mNumVertices = mout->mNumFaces<<2u;
+        for (unsigned int i = 0, v = 0, n = 0; i < minp->mNumFaces;++i) {
+
+            const aiFace& face = minp->mFaces[i];
+            for (unsigned int a = 0; a < face.mNumIndices;++a)  {
+
+                // Get a clean new face.
+                aiFace& faceOut = mout->mFaces[n++];
+                faceOut.mIndices = new unsigned int [faceOut.mNumIndices = 4];
+
+                // Spawn a new quadrilateral (ccw winding) for this original point between:
+                // a) face centroid
+                centroids[FLATTEN_FACE_IDX(t,i)].SortBack(mout,faceOut.mIndices[0]=v++);
+
+                // b) adjacent edge on the left, seen from the centroid
+                const Edge& e0 = edges[MAKE_EDGE_HASH(maptbl[FLATTEN_VERTEX_IDX(t,face.mIndices[a])],
+                    maptbl[FLATTEN_VERTEX_IDX(t,face.mIndices[a==face.mNumIndices-1?0:a+1])
+                    ])];  // fixme: replace with mod face.mNumIndices?
+
+                // c) adjacent edge on the right, seen from the centroid
+                const Edge& e1 = edges[MAKE_EDGE_HASH(maptbl[FLATTEN_VERTEX_IDX(t,face.mIndices[a])],
+                    maptbl[FLATTEN_VERTEX_IDX(t,face.mIndices[!a?face.mNumIndices-1:a-1])
+                    ])];  // fixme: replace with mod face.mNumIndices?
+
+                e0.edge_point.SortBack(mout,faceOut.mIndices[3]=v++);
+                e1.edge_point.SortBack(mout,faceOut.mIndices[1]=v++);
+
+                // d= original point P with distinct index i
+                // F := 0
+                // R := 0
+                // n := 0
+                // for each face f containing i
+                //    F := F+ centroid of f
+                //    R := R+ midpoint of edge of f from i to i+1
+                //    n := n+1
+                //
+                // (F+2R+(n-3)P)/n
+                const unsigned int org = maptbl[FLATTEN_VERTEX_IDX(t,face.mIndices[a])];
+                TouchedOVertex& ov = new_points[org];
+
+                if (!ov.first) {
+                    ov.first = true;
+
+                    const unsigned int* adj; unsigned int cnt;
+                    GET_ADJACENT_FACES_AND_CNT(org,adj,cnt);
+
+                    if (cnt < 3) {
+                        ov.second = Vertex(minp,face.mIndices[a]);
+                    }
+                    else {
+
+                        Vertex F,R;
+                        for (unsigned int o = 0; o < cnt; ++o) {
+                            ai_assert(adj[o] < totfaces);
+                            F += centroids[adj[o]];
+
+                            // adj[0] is a global face index - search the face in the mesh list
+                            const aiMesh* mp = NULL;
+                            size_t nidx;
+
+                            if (adj[o] < moffsets[0].first) {
+                                mp = smesh[nidx=0];
+                            }
+                            else {
+                                for (nidx = 1; nidx<= nmesh; ++nidx) {
+                                    if (nidx == nmesh ||moffsets[nidx].first > adj[o]) {
+                                        mp = smesh[--nidx];
+                                        break;
+                                    }
+                                }
+                            }
+
+                            ai_assert(adj[o]-moffsets[nidx].first < mp->mNumFaces);
+                            const aiFace& f = mp->mFaces[adj[o]-moffsets[nidx].first];
+                            bool haveit = false;
+
+                            // find our original point in the face
+                            for (unsigned int m = 0; m < f.mNumIndices; ++m) {
+                                if (maptbl[FLATTEN_VERTEX_IDX(nidx,f.mIndices[m])] == org) {
+
+                                    // add *both* edges. this way, we can be sure that we add
+                                    // *all* adjacent edges to R. In a closed shape, every
+                                    // edge is added twice - so we simply leave out the
+                                    // factor 2.f in the amove formula and get the right
+                                    // result.
+
+                                    const Edge& c0 = edges[MAKE_EDGE_HASH(org,maptbl[FLATTEN_VERTEX_IDX(
+                                        nidx,f.mIndices[!m?f.mNumIndices-1:m-1])])];
+                                    // fixme: replace with mod face.mNumIndices?
+
+                                    const Edge& c1 = edges[MAKE_EDGE_HASH(org,maptbl[FLATTEN_VERTEX_IDX(
+                                        nidx,f.mIndices[m==f.mNumIndices-1?0:m+1])])];
+                                    // fixme: replace with mod face.mNumIndices?
+                                    R += c0.midpoint+c1.midpoint;
+
+                                    haveit = true;
+                                    break;
+                                }
+                            }
+
+                            // this invariant *must* hold if the vertex-to-face adjacency table is valid
+                            ai_assert(haveit);
+                            if ( !haveit ) {
+                                ASSIMP_LOG_WARN( "OBJ: no name for material library specified." );
+                            }
+                        }
+
+                        const float div = static_cast<float>(cnt), divsq = 1.f/(div*div);
+                        ov.second = Vertex(minp,face.mIndices[a])*((div-3.f) / div) + R*divsq + F*divsq;
+                    }
+                }
+                ov.second.SortBack(mout,faceOut.mIndices[2]=v++);
+            }
+        }
+    }
+    }  // end of scope for edges, freeing its memory
+
+    // ---------------------------------------------------------------------
+    // 7. Apply the next subdivision step.
+    // ---------------------------------------------------------------------
+    if (num != 1) {
+        std::vector<aiMesh*> tmp(nmesh);
+        InternSubdivide (out,nmesh,&tmp.front(),num-1);
+        for (size_t i = 0; i < nmesh; ++i) {
+            delete out[i];
+            out[i] = tmp[i];
+        }
+    }
+}
diff --git a/thirdparty/assimp/code/TargetAnimation.cpp b/thirdparty/assimp/code/TargetAnimation.cpp
new file mode 100644
index 0000000000..b8062499ff
--- /dev/null
+++ b/thirdparty/assimp/code/TargetAnimation.cpp
@@ -0,0 +1,248 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#include "TargetAnimation.h"
+#include <algorithm>
+#include <assimp/ai_assert.h>
+
+using namespace Assimp;
+
+
+// ------------------------------------------------------------------------------------------------
+KeyIterator::KeyIterator(const std::vector<aiVectorKey>* _objPos,
+    const std::vector<aiVectorKey>* _targetObjPos,
+    const aiVector3D*  defaultObjectPos /*= NULL*/,
+    const aiVector3D*  defaultTargetPos /*= NULL*/)
+
+        :   reachedEnd      (false)
+        ,   curTime         (-1.)
+        ,   objPos          (_objPos)
+        ,   targetObjPos    (_targetObjPos)
+        ,   nextObjPos      (0)
+        ,   nextTargetObjPos(0)
+{
+    // Generate default transformation tracks if necessary
+    if (!objPos || objPos->empty())
+    {
+        defaultObjPos.resize(1);
+        defaultObjPos.front().mTime  = 10e10;
+
+        if (defaultObjectPos)
+            defaultObjPos.front().mValue = *defaultObjectPos;
+
+        objPos = & defaultObjPos;
+    }
+    if (!targetObjPos || targetObjPos->empty())
+    {
+        defaultTargetObjPos.resize(1);
+        defaultTargetObjPos.front().mTime  = 10e10;
+
+        if (defaultTargetPos)
+            defaultTargetObjPos.front().mValue = *defaultTargetPos;
+
+        targetObjPos = & defaultTargetObjPos;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline T Interpolate(const T& one, const T& two, ai_real val)
+{
+    return one + (two-one)*val;
+}
+
+// ------------------------------------------------------------------------------------------------
+void KeyIterator::operator ++()
+{
+    // If we are already at the end of all keyframes, return
+    if (reachedEnd) {
+        return;
+    }
+
+    // Now search in all arrays for the time value closest
+    // to our current position on the time line
+    double d0,d1;
+
+    d0 = objPos->at      ( std::min ( nextObjPos, static_cast<unsigned int>(objPos->size()-1))             ).mTime;
+    d1 = targetObjPos->at( std::min ( nextTargetObjPos, static_cast<unsigned int>(targetObjPos->size()-1)) ).mTime;
+
+    // Easiest case - all are identical. In this
+    // case we don't need to interpolate so we can
+    // return earlier
+    if ( d0 == d1 )
+    {
+        curTime = d0;
+        curPosition = objPos->at(nextObjPos).mValue;
+        curTargetPosition = targetObjPos->at(nextTargetObjPos).mValue;
+
+        // increment counters
+        if (objPos->size() != nextObjPos-1)
+            ++nextObjPos;
+
+        if (targetObjPos->size() != nextTargetObjPos-1)
+            ++nextTargetObjPos;
+    }
+
+    // An object position key is closest to us
+    else if (d0 < d1)
+    {
+        curTime = d0;
+
+        // interpolate the other
+        if (1 == targetObjPos->size() || !nextTargetObjPos) {
+            curTargetPosition = targetObjPos->at(0).mValue;
+        }
+        else
+        {
+            const aiVectorKey& last  = targetObjPos->at(nextTargetObjPos);
+            const aiVectorKey& first = targetObjPos->at(nextTargetObjPos-1);
+
+            curTargetPosition = Interpolate(first.mValue, last.mValue, (ai_real) (
+                (curTime-first.mTime) / (last.mTime-first.mTime) ));
+        }
+
+        if (objPos->size() != nextObjPos-1)
+            ++nextObjPos;
+    }
+    // A target position key is closest to us
+    else
+    {
+        curTime = d1;
+
+        // interpolate the other
+        if (1 == objPos->size() || !nextObjPos) {
+            curPosition = objPos->at(0).mValue;
+        }
+        else
+        {
+            const aiVectorKey& last  = objPos->at(nextObjPos);
+            const aiVectorKey& first = objPos->at(nextObjPos-1);
+
+            curPosition = Interpolate(first.mValue, last.mValue, (ai_real) (
+                (curTime-first.mTime) / (last.mTime-first.mTime)));
+        }
+
+        if (targetObjPos->size() != nextTargetObjPos-1)
+            ++nextTargetObjPos;
+    }
+
+    if (nextObjPos >= objPos->size()-1 &&
+        nextTargetObjPos >= targetObjPos->size()-1)
+    {
+        // We reached the very last keyframe
+        reachedEnd = true;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void TargetAnimationHelper::SetTargetAnimationChannel (
+    const std::vector<aiVectorKey>* _targetPositions)
+{
+    ai_assert(NULL != _targetPositions);
+    targetPositions = _targetPositions;
+}
+
+// ------------------------------------------------------------------------------------------------
+void TargetAnimationHelper::SetMainAnimationChannel (
+    const std::vector<aiVectorKey>* _objectPositions)
+{
+    ai_assert(NULL != _objectPositions);
+    objectPositions = _objectPositions;
+}
+
+// ------------------------------------------------------------------------------------------------
+void TargetAnimationHelper::SetFixedMainAnimationChannel(
+    const aiVector3D& fixed)
+{
+    objectPositions = NULL; // just to avoid confusion
+    fixedMain = fixed;
+}
+
+// ------------------------------------------------------------------------------------------------
+void TargetAnimationHelper::Process(std::vector<aiVectorKey>* distanceTrack)
+{
+    ai_assert(NULL != targetPositions && NULL != distanceTrack);
+
+    // TODO: in most cases we won't need the extra array
+    std::vector<aiVectorKey>  real;
+
+    std::vector<aiVectorKey>* fill = (distanceTrack == objectPositions ? &real : distanceTrack);
+    fill->reserve(std::max( objectPositions->size(), targetPositions->size() ));
+
+    // Iterate through all object keys and interpolate their values if necessary.
+    // Then get the corresponding target position, compute the difference
+    // vector between object and target position. Then compute a rotation matrix
+    // that rotates the base vector of the object coordinate system at that time
+    // to match the diff vector.
+
+    KeyIterator iter(objectPositions,targetPositions,&fixedMain);
+    for (;!iter.Finished();++iter)
+    {
+        const aiVector3D&  position  = iter.GetCurPosition();
+        const aiVector3D&  tposition = iter.GetCurTargetPosition();
+
+        // diff vector
+        aiVector3D diff = tposition - position;
+        ai_real f = diff.Length();
+
+        // output distance vector
+        if (f)
+        {
+            fill->push_back(aiVectorKey());
+            aiVectorKey& v = fill->back();
+            v.mTime  = iter.GetCurTime();
+            v.mValue = diff;
+
+            diff /= f;
+        }
+        else
+        {
+            // FIXME: handle this
+        }
+
+        // diff is now the vector in which our camera is pointing
+    }
+
+    if (real.size()) {
+        *distanceTrack = real;
+    }
+}
diff --git a/thirdparty/assimp/code/TargetAnimation.h b/thirdparty/assimp/code/TargetAnimation.h
new file mode 100644
index 0000000000..91634ab5aa
--- /dev/null
+++ b/thirdparty/assimp/code/TargetAnimation.h
@@ -0,0 +1,183 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a helper class for the ASE and 3DS loaders to
+ help them compute camera and spot light animation channels */
+#ifndef AI_TARGET_ANIMATION_H_INC
+#define AI_TARGET_ANIMATION_H_INC
+
+#include <assimp/anim.h>
+#include <vector>
+
+namespace Assimp    {
+
+
+
+// ---------------------------------------------------------------------------
+/** Helper class to iterate through all keys in an animation channel.
+ *
+ *  Missing tracks are interpolated. This is a helper class for
+ *  TargetAnimationHelper, but it can be freely used for other purposes.
+*/
+class KeyIterator
+{
+public:
+
+
+    // ------------------------------------------------------------------
+    /** Constructs a new key iterator
+     *
+     *  @param _objPos Object position track. May be NULL.
+     *  @param _targetObjPos Target object position track. May be NULL.
+     *  @param defaultObjectPos Default object position to be used if
+     *    no animated track is available. May be NULL.
+     *  @param defaultTargetPos Default target position to be used if
+     *    no animated track is available. May be NULL.
+     */
+    KeyIterator(const std::vector<aiVectorKey>* _objPos,
+        const std::vector<aiVectorKey>* _targetObjPos,
+        const aiVector3D*  defaultObjectPos = NULL,
+        const aiVector3D*  defaultTargetPos = NULL);
+
+    // ------------------------------------------------------------------
+    /** Returns true if all keys have been processed
+     */
+    bool Finished() const
+        {return reachedEnd;}
+
+    // ------------------------------------------------------------------
+    /** Increment the iterator
+     */
+    void operator++();
+    inline void operator++(int)
+        {return ++(*this);}
+
+
+
+    // ------------------------------------------------------------------
+    /** Getters to retrieve the current state of the iterator
+     */
+    inline const aiVector3D& GetCurPosition() const
+        {return curPosition;}
+
+    inline const aiVector3D& GetCurTargetPosition() const
+        {return curTargetPosition;}
+
+    inline double GetCurTime() const
+        {return curTime;}
+
+private:
+
+    //! Did we reach the end?
+    bool reachedEnd;
+
+    //! Represents the current position of the iterator
+    aiVector3D curPosition, curTargetPosition;
+
+    double curTime;
+
+    //! Input tracks and the next key to process
+    const std::vector<aiVectorKey>* objPos,*targetObjPos;
+
+    unsigned int nextObjPos, nextTargetObjPos;
+    std::vector<aiVectorKey> defaultObjPos,defaultTargetObjPos;
+};
+
+// ---------------------------------------------------------------------------
+/** Helper class for the 3DS and ASE loaders to compute camera and spot light
+ *  animations.
+ *
+ * 3DS and ASE store the differently to Assimp - there is an animation
+ * channel for the camera/spot light itself and a separate position
+ * animation channels specifying the position of the camera/spot light
+ * look-at target */
+class TargetAnimationHelper
+{
+public:
+
+    TargetAnimationHelper()
+        :   targetPositions     (NULL)
+        ,   objectPositions     (NULL)
+    {}
+
+
+    // ------------------------------------------------------------------
+    /** Sets the target animation channel
+     *
+     *  This channel specifies the position of the camera/spot light
+     *  target at a specific position.
+     *
+     *  @param targetPositions Translation channel*/
+    void SetTargetAnimationChannel (const
+        std::vector<aiVectorKey>* targetPositions);
+
+
+    // ------------------------------------------------------------------
+    /** Sets the main animation channel
+     *
+     *  @param objectPositions Translation channel */
+    void SetMainAnimationChannel ( const
+        std::vector<aiVectorKey>* objectPositions);
+
+    // ------------------------------------------------------------------
+    /** Sets the main animation channel to a fixed value
+     *
+     *  @param fixed Fixed value for the main animation channel*/
+    void SetFixedMainAnimationChannel(const aiVector3D& fixed);
+
+
+    // ------------------------------------------------------------------
+    /** Computes final animation channels
+     * @param distanceTrack Receive camera translation keys ... != NULL. */
+    void Process( std::vector<aiVectorKey>* distanceTrack );
+
+
+private:
+
+    const std::vector<aiVectorKey>* targetPositions,*objectPositions;
+    aiVector3D fixedMain;
+};
+
+
+} // ! end namespace Assimp
+
+#endif // include guard
diff --git a/thirdparty/assimp/code/TextureTransform.cpp b/thirdparty/assimp/code/TextureTransform.cpp
new file mode 100644
index 0000000000..8ae2ba7218
--- /dev/null
+++ b/thirdparty/assimp/code/TextureTransform.cpp
@@ -0,0 +1,566 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file A helper class that processes texture transformations */
+
+
+
+#include <assimp/Importer.hpp>
+#include <assimp/postprocess.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/scene.h>
+
+#include "TextureTransform.h"
+#include <assimp/StringUtils.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+TextureTransformStep::TextureTransformStep() :
+    configFlags()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+TextureTransformStep::~TextureTransformStep()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool TextureTransformStep::IsActive( unsigned int pFlags) const
+{
+    return  (pFlags & aiProcess_TransformUVCoords) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Setup properties
+void TextureTransformStep::SetupProperties(const Importer* pImp)
+{
+    configFlags = pImp->GetPropertyInteger(AI_CONFIG_PP_TUV_EVALUATE,AI_UVTRAFO_ALL);
+}
+
+// ------------------------------------------------------------------------------------------------
+void TextureTransformStep::PreProcessUVTransform(STransformVecInfo& info)
+{
+    /*  This function tries to simplify the input UV transformation.
+     *  That's very important as it allows us to reduce the number
+     *  of output UV channels. The order in which the transformations
+     *  are applied is - as always - scaling, rotation, translation.
+     */
+
+    char szTemp[512];
+    int rounded = 0;
+
+
+    /* Optimize the rotation angle. That's slightly difficult as
+     * we have an inprecise floating-point number (when comparing
+     * UV transformations we'll take that into account by using
+     * an epsilon of 5 degrees). If there is a rotation value, we can't
+     * perform any further optimizations.
+     */
+    if (info.mRotation)
+    {
+        float out = info.mRotation;
+        if ((rounded = static_cast<int>((info.mRotation / static_cast<float>(AI_MATH_TWO_PI)))))
+        {
+            out -= rounded * static_cast<float>(AI_MATH_PI);
+            ASSIMP_LOG_INFO_F("Texture coordinate rotation ", info.mRotation, " can be simplified to ", out);
+        }
+
+        // Next step - convert negative rotation angles to positives
+        if (out < 0.f)
+            out = (float)AI_MATH_TWO_PI * 2 + out;
+
+        info.mRotation = out;
+        return;
+    }
+
+
+    /* Optimize UV translation in the U direction. To determine whether
+     * or not we can optimize we need to look at the requested mapping
+     * type (e.g. if mirroring is active there IS a difference between
+     * offset 2 and 3)
+     */
+    if ((rounded  = (int)info.mTranslation.x))  {
+        float out = 0.0f;
+        szTemp[0] = 0;
+        if (aiTextureMapMode_Wrap == info.mapU) {
+            // Wrap - simple take the fraction of the field
+            out = info.mTranslation.x-(float)rounded;
+			ai_snprintf(szTemp, 512, "[w] UV U offset %f can be simplified to %f", info.mTranslation.x, out);
+        }
+        else if (aiTextureMapMode_Mirror == info.mapU && 1 != rounded)  {
+            // Mirror
+            if (rounded % 2)
+                rounded--;
+            out = info.mTranslation.x-(float)rounded;
+
+            ai_snprintf(szTemp,512,"[m/d] UV U offset %f can be simplified to %f",info.mTranslation.x,out);
+        }
+        else if (aiTextureMapMode_Clamp == info.mapU || aiTextureMapMode_Decal == info.mapU)    {
+            // Clamp - translations beyond 1,1 are senseless
+            ai_snprintf(szTemp,512,"[c] UV U offset %f can be clamped to 1.0f",info.mTranslation.x);
+
+            out = 1.f;
+        }
+        if (szTemp[0])      {
+            ASSIMP_LOG_INFO(szTemp);
+            info.mTranslation.x = out;
+        }
+    }
+
+    /* Optimize UV translation in the V direction. To determine whether
+     * or not we can optimize we need to look at the requested mapping
+     * type (e.g. if mirroring is active there IS a difference between
+     * offset 2 and 3)
+     */
+    if ((rounded  = (int)info.mTranslation.y))  {
+        float out = 0.0f;
+        szTemp[0] = 0;
+        if (aiTextureMapMode_Wrap == info.mapV) {
+            // Wrap - simple take the fraction of the field
+            out = info.mTranslation.y-(float)rounded;
+            ::ai_snprintf(szTemp,512,"[w] UV V offset %f can be simplified to %f",info.mTranslation.y,out);
+        }
+        else if (aiTextureMapMode_Mirror == info.mapV  && 1 != rounded) {
+            // Mirror
+            if (rounded % 2)
+                rounded--;
+            out = info.mTranslation.x-(float)rounded;
+
+            ::ai_snprintf(szTemp,512,"[m/d] UV V offset %f can be simplified to %f",info.mTranslation.y,out);
+        }
+        else if (aiTextureMapMode_Clamp == info.mapV || aiTextureMapMode_Decal == info.mapV)    {
+            // Clamp - translations beyond 1,1 are senseless
+            ::ai_snprintf(szTemp,512,"[c] UV V offset %f canbe clamped to 1.0f",info.mTranslation.y);
+
+            out = 1.f;
+        }
+        if (szTemp[0])  {
+            ASSIMP_LOG_INFO(szTemp);
+            info.mTranslation.y = out;
+        }
+    }
+    return;
+}
+
+// ------------------------------------------------------------------------------------------------
+void UpdateUVIndex(const std::list<TTUpdateInfo>& l, unsigned int n)
+{
+    // Don't set if == 0 && wasn't set before
+    for (std::list<TTUpdateInfo>::const_iterator it = l.begin();it != l.end(); ++it) {
+        const TTUpdateInfo& info = *it;
+
+        if (info.directShortcut)
+            *info.directShortcut = n;
+        else if (!n)
+        {
+            info.mat->AddProperty<int>((int*)&n,1,AI_MATKEY_UVWSRC(info.semantic,info.index));
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+inline const char* MappingModeToChar(aiTextureMapMode map)
+{
+    if (aiTextureMapMode_Wrap == map)
+        return "-w";
+
+    if (aiTextureMapMode_Mirror == map)
+        return "-m";
+
+    return "-c";
+}
+
+// ------------------------------------------------------------------------------------------------
+void TextureTransformStep::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("TransformUVCoordsProcess begin");
+
+
+    /*  We build a per-mesh list of texture transformations we'll need
+     *  to apply. To achieve this, we iterate through all materials,
+     *  find all textures and get their transformations and UV indices.
+     *  Then we search for all meshes using this material.
+     */
+    typedef std::list<STransformVecInfo> MeshTrafoList;
+    std::vector<MeshTrafoList> meshLists(pScene->mNumMeshes);
+
+    for (unsigned int i = 0; i < pScene->mNumMaterials;++i) {
+
+        aiMaterial* mat = pScene->mMaterials[i];
+        for (unsigned int a = 0; a < mat->mNumProperties;++a)   {
+
+            aiMaterialProperty* prop = mat->mProperties[a];
+            if (!::strcmp( prop->mKey.data, "$tex.file"))   {
+                STransformVecInfo info;
+
+                // Setup a shortcut structure to allow for a fast updating
+                // of the UV index later
+                TTUpdateInfo update;
+                update.mat = (aiMaterial*) mat;
+                update.semantic = prop->mSemantic;
+                update.index = prop->mIndex;
+
+                // Get textured properties and transform
+                for (unsigned int a2 = 0; a2 < mat->mNumProperties;++a2)  {
+                    aiMaterialProperty* prop2 = mat->mProperties[a2];
+                    if (prop2->mSemantic != prop->mSemantic || prop2->mIndex != prop->mIndex) {
+                        continue;
+                    }
+
+                    if ( !::strcmp( prop2->mKey.data, "$tex.uvwsrc")) {
+                        info.uvIndex = *((int*)prop2->mData);
+
+                        // Store a direct pointer for later use
+                        update.directShortcut = (unsigned int*) prop2->mData;
+                    }
+
+                    else if ( !::strcmp( prop2->mKey.data, "$tex.mapmodeu")) {
+                        info.mapU = *((aiTextureMapMode*)prop2->mData);
+                    }
+                    else if ( !::strcmp( prop2->mKey.data, "$tex.mapmodev")) {
+                        info.mapV = *((aiTextureMapMode*)prop2->mData);
+                    }
+                    else if ( !::strcmp( prop2->mKey.data, "$tex.uvtrafo"))  {
+                        // ValidateDS should check this
+                        ai_assert(prop2->mDataLength >= 20);
+                        ::memcpy(&info.mTranslation.x,prop2->mData,sizeof(float)*5);
+
+                        // Directly remove this property from the list
+                        mat->mNumProperties--;
+                        for (unsigned int a3 = a2; a3 < mat->mNumProperties;++a3) {
+                            mat->mProperties[a3] = mat->mProperties[a3+1];
+                        }
+
+                        delete prop2;
+
+                        // Warn: could be an underflow, but this does not invoke undefined behaviour
+                        --a2;
+                    }
+                }
+
+                // Find out which transformations are to be evaluated
+                if (!(configFlags & AI_UVTRAFO_ROTATION)) {
+                    info.mRotation = 0.f;
+                }
+                if (!(configFlags & AI_UVTRAFO_SCALING)) {
+                    info.mScaling = aiVector2D(1.f,1.f);
+                }
+                if (!(configFlags & AI_UVTRAFO_TRANSLATION)) {
+                    info.mTranslation = aiVector2D(0.f,0.f);
+                }
+
+                // Do some preprocessing
+                PreProcessUVTransform(info);
+                info.uvIndex = std::min(info.uvIndex,AI_MAX_NUMBER_OF_TEXTURECOORDS -1u);
+
+                // Find out whether this material is used by more than
+                // one mesh. This will make our task much, much more difficult!
+                unsigned int cnt = 0;
+                for (unsigned int n = 0; n < pScene->mNumMeshes;++n)    {
+                    if (pScene->mMeshes[n]->mMaterialIndex == i)
+                        ++cnt;
+                }
+
+                if (!cnt)
+                    continue;
+                else if (1 != cnt)  {
+                    // This material is referenced by more than one mesh!
+                    // So we need to make sure the UV index for the texture
+                    // is identical for each of it ...
+                    info.lockedPos = AI_TT_UV_IDX_LOCK_TBD;
+                }
+
+                // Get all corresponding meshes
+                for (unsigned int n = 0; n < pScene->mNumMeshes;++n)    {
+                    aiMesh* mesh = pScene->mMeshes[n];
+                    if (mesh->mMaterialIndex != i || !mesh->mTextureCoords[0])
+                        continue;
+
+                    unsigned int uv = info.uvIndex;
+                    if (!mesh->mTextureCoords[uv])  {
+                        // If the requested UV index is not available, take the first one instead.
+                        uv = 0;
+                    }
+
+                    if (mesh->mNumUVComponents[info.uvIndex] >= 3){
+                        ASSIMP_LOG_WARN("UV transformations on 3D mapping channels are not supported");
+                        continue;
+                    }
+
+                    MeshTrafoList::iterator it;
+
+                    // Check whether we have this transform setup already
+                    for (it = meshLists[n].begin();it != meshLists[n].end(); ++it)  {
+
+                        if ((*it) == info && (*it).uvIndex == uv)   {
+                            (*it).updateList.push_back(update);
+                            break;
+                        }
+                    }
+
+                    if (it == meshLists[n].end())   {
+                        meshLists[n].push_back(info);
+                        meshLists[n].back().uvIndex = uv;
+                        meshLists[n].back().updateList.push_back(update);
+                    }
+                }
+            }
+        }
+    }
+
+    char buffer[1024]; // should be sufficiently large
+    unsigned int outChannels = 0, inChannels = 0, transformedChannels = 0;
+
+    // Now process all meshes. Important: we don't remove unreferenced UV channels.
+    // This is a job for the RemoveUnreferencedData-Step.
+    for (unsigned int q = 0; q < pScene->mNumMeshes;++q)    {
+
+        aiMesh* mesh = pScene->mMeshes[q];
+        MeshTrafoList& trafo =  meshLists[q];
+
+        inChannels += mesh->GetNumUVChannels();
+
+        if (!mesh->mTextureCoords[0] || trafo.empty() ||  (trafo.size() == 1 && trafo.begin()->IsUntransformed())) {
+            outChannels += mesh->GetNumUVChannels();
+            continue;
+        }
+
+        // Move untransformed UV channels to the first position in the list ....
+        // except if we need a new locked index which should be as small as possible
+        bool veto = false, need = false;
+        unsigned int cnt = 0;
+        unsigned int untransformed = 0;
+
+        MeshTrafoList::iterator it,it2;
+        for (it = trafo.begin();it != trafo.end(); ++it,++cnt)  {
+
+            if (!(*it).IsUntransformed()) {
+                need = true;
+            }
+
+            if ((*it).lockedPos == AI_TT_UV_IDX_LOCK_TBD)   {
+                // Lock this index and make sure it won't be changed
+                (*it).lockedPos = cnt;
+                veto = true;
+                continue;
+            }
+
+            if (!veto && it != trafo.begin() && (*it).IsUntransformed())    {
+                for (it2 = trafo.begin();it2 != it; ++it2) {
+                    if (!(*it2).IsUntransformed())
+                        break;
+                }
+                trafo.insert(it2,*it);
+                trafo.erase(it);
+                break;
+            }
+        }
+        if (!need)
+            continue;
+
+        // Find all that are not at their 'locked' position and move them to it.
+        // Conflicts are possible but quite unlikely.
+        cnt = 0;
+        for (it = trafo.begin();it != trafo.end(); ++it,++cnt) {
+            if ((*it).lockedPos != AI_TT_UV_IDX_LOCK_NONE && (*it).lockedPos != cnt) {
+                it2 = trafo.begin();unsigned int t = 0;
+                while (t != (*it).lockedPos)
+                    ++it2;
+
+                if ((*it2).lockedPos != AI_TT_UV_IDX_LOCK_NONE) {
+                    ASSIMP_LOG_ERROR("Channel mismatch, can't compute all transformations properly [design bug]");
+                    continue;
+                }
+
+                std::swap(*it2,*it);
+                if ((*it).lockedPos == untransformed)
+                    untransformed = cnt;
+            }
+        }
+
+        // ... and add dummies for all unreferenced channels
+        // at the end of the list
+        bool ref[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+        for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n)
+            ref[n] = (!mesh->mTextureCoords[n] ? true : false);
+
+        for (it = trafo.begin();it != trafo.end(); ++it)
+            ref[(*it).uvIndex] = true;
+
+        for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n) {
+            if (ref[n])
+                continue;
+            trafo.push_back(STransformVecInfo());
+            trafo.back().uvIndex = n;
+        }
+
+        // Then check whether this list breaks the channel limit.
+        // The unimportant ones are at the end of the list, so
+        // it shouldn't be too worse if we remove them.
+        unsigned int size = (unsigned int)trafo.size();
+        if (size > AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+
+            if (!DefaultLogger::isNullLogger()) {
+                ASSIMP_LOG_ERROR_F(static_cast<unsigned int>(trafo.size()), " UV channels required but just ", 
+                    AI_MAX_NUMBER_OF_TEXTURECOORDS, " available");
+            }
+            size = AI_MAX_NUMBER_OF_TEXTURECOORDS;
+        }
+
+
+        aiVector3D* old[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+        for (unsigned int n = 0; n < AI_MAX_NUMBER_OF_TEXTURECOORDS;++n)
+            old[n] = mesh->mTextureCoords[n];
+
+        // Now continue and generate the output channels. Channels
+        // that we're not going to need later can be overridden.
+        it = trafo.begin();
+        for (unsigned int n = 0; n < trafo.size();++n,++it) {
+
+            if (n >= size)  {
+                // Try to use an untransformed channel for all channels we threw over board
+                UpdateUVIndex((*it).updateList,untransformed);
+                continue;
+            }
+
+            outChannels++;
+
+            // Write to the log
+            if (!DefaultLogger::isNullLogger()) {
+                ::ai_snprintf(buffer,1024,"Mesh %u, channel %u: t(%.3f,%.3f), s(%.3f,%.3f), r(%.3f), %s%s",
+                    q,n,
+                    (*it).mTranslation.x,
+                    (*it).mTranslation.y,
+                    (*it).mScaling.x,
+                    (*it).mScaling.y,
+                    AI_RAD_TO_DEG( (*it).mRotation),
+                    MappingModeToChar ((*it).mapU),
+                    MappingModeToChar ((*it).mapV));
+
+                ASSIMP_LOG_INFO(buffer);
+            }
+
+            // Check whether we need a new buffer here
+            if (mesh->mTextureCoords[n])    {
+
+                it2 = it;++it2;
+                for (unsigned int m = n+1; m < size;++m, ++it2) {
+
+                    if ((*it2).uvIndex == n){
+                        it2 = trafo.begin();
+                        break;
+                    }
+                }
+                if (it2 == trafo.begin()){
+                    mesh->mTextureCoords[n] = new aiVector3D[mesh->mNumVertices];
+                }
+            }
+            else mesh->mTextureCoords[n] = new aiVector3D[mesh->mNumVertices];
+
+            aiVector3D* src = old[(*it).uvIndex];
+            aiVector3D* dest, *end;
+            dest = mesh->mTextureCoords[n];
+
+            ai_assert(NULL != src);
+
+            // Copy the data to the destination array
+            if (dest != src)
+                ::memcpy(dest,src,sizeof(aiVector3D)*mesh->mNumVertices);
+
+            end = dest + mesh->mNumVertices;
+
+            // Build a transformation matrix and transform all UV coords with it
+            if (!(*it).IsUntransformed()) {
+                const aiVector2D& trl = (*it).mTranslation;
+                const aiVector2D& scl = (*it).mScaling;
+
+                // fixme: simplify ..
+                ++transformedChannels;
+                aiMatrix3x3 matrix;
+
+                aiMatrix3x3 m2,m3,m4,m5;
+
+                m4.a1 = scl.x;
+                m4.b2 = scl.y;
+
+                m2.a3 = m2.b3 = 0.5f;
+                m3.a3 = m3.b3 = -0.5f;
+
+                if ((*it).mRotation > AI_TT_ROTATION_EPSILON )
+                    aiMatrix3x3::RotationZ((*it).mRotation,matrix);
+
+                m5.a3 += trl.x; m5.b3 += trl.y;
+                matrix = m2 * m4 * matrix * m3 * m5;
+
+                for (src = dest; src != end; ++src) { /* manual homogenious divide */
+                    src->z = 1.f;
+                    *src = matrix * *src;
+                    src->x /= src->z;
+                    src->y /= src->z;
+                    src->z = 0.f;
+                }
+            }
+
+            // Update all UV indices
+            UpdateUVIndex((*it).updateList,n);
+        }
+    }
+
+    // Print some detailed statistics into the log
+    if (!DefaultLogger::isNullLogger()) {
+
+        if (transformedChannels)    {
+            ASSIMP_LOG_INFO_F("TransformUVCoordsProcess end: ", outChannels, " output channels (in: ", inChannels, ", modified: ", transformedChannels,")");
+        } else {
+            ASSIMP_LOG_DEBUG("TransformUVCoordsProcess finished");
+        }
+    }
+}
+
+
diff --git a/thirdparty/assimp/code/TextureTransform.h b/thirdparty/assimp/code/TextureTransform.h
new file mode 100644
index 0000000000..c556ff5d8c
--- /dev/null
+++ b/thirdparty/assimp/code/TextureTransform.h
@@ -0,0 +1,232 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Definition of a helper step that processes texture transformations */
+#ifndef AI_TEXTURE_TRANSFORM_H_INCLUDED
+#define AI_TEXTURE_TRANSFORM_H_INCLUDED
+
+#include <assimp/BaseImporter.h>
+#include "BaseProcess.h"
+
+#include <assimp/material.h>
+#include <list>
+
+struct aiNode;
+struct aiMaterial;
+
+namespace Assimp    {
+
+#define AI_TT_UV_IDX_LOCK_TBD   0xffffffff
+#define AI_TT_UV_IDX_LOCK_NONE  0xeeeeeeee
+
+
+#define AI_TT_ROTATION_EPSILON  ((float)AI_DEG_TO_RAD(0.5))
+
+// ---------------------------------------------------------------------------
+/** Small helper structure representing a shortcut into the material list
+ *  to be able to update some values quickly.
+*/
+struct TTUpdateInfo {
+    TTUpdateInfo() AI_NO_EXCEPT
+    : directShortcut(nullptr)
+    , mat(nullptr)
+    , semantic(0)
+    , index(0) {
+        // empty
+    }
+
+    //! Direct shortcut, if available
+    unsigned int* directShortcut;
+
+    //! Material
+    aiMaterial *mat;
+
+    //! Texture type and index
+    unsigned int semantic, index;
+};
+
+
+// ---------------------------------------------------------------------------
+/** Helper class representing texture coordinate transformations
+*/
+struct STransformVecInfo : public aiUVTransform {
+    STransformVecInfo() AI_NO_EXCEPT
+    : uvIndex(0)
+    , mapU(aiTextureMapMode_Wrap)
+    , mapV(aiTextureMapMode_Wrap)
+    , lockedPos(AI_TT_UV_IDX_LOCK_NONE) {
+        // empty
+    }
+
+    //! Source texture coordinate index
+    unsigned int uvIndex;
+
+    //! Texture mapping mode in the u, v direction
+    aiTextureMapMode mapU,mapV;
+
+    //! Locked destination UV index
+    //! AI_TT_UV_IDX_LOCK_TBD - to be determined
+    //! AI_TT_UV_IDX_LOCK_NONE - none (default)
+    unsigned int lockedPos;
+
+    //! Update info - shortcuts into all materials
+    //! that are referencing this transform setup
+    std::list<TTUpdateInfo> updateList;
+
+
+    // -------------------------------------------------------------------
+    /** Compare two transform setups
+    */
+    inline bool operator== (const STransformVecInfo& other) const
+    {
+        // We use a small epsilon here
+        const static float epsilon = 0.05f;
+
+        if (std::fabs( mTranslation.x - other.mTranslation.x ) > epsilon ||
+            std::fabs( mTranslation.y - other.mTranslation.y ) > epsilon)
+        {
+            return false;
+        }
+
+        if (std::fabs( mScaling.x - other.mScaling.x ) > epsilon ||
+            std::fabs( mScaling.y - other.mScaling.y ) > epsilon)
+        {
+            return false;
+        }
+
+        if (std::fabs( mRotation - other.mRotation) > epsilon)
+        {
+            return false;
+        }
+        return true;
+    }
+
+    inline bool operator!= (const STransformVecInfo& other) const
+    {
+            return !(*this == other);
+    }
+
+
+    // -------------------------------------------------------------------
+    /** Returns whether this is an untransformed texture coordinate set
+    */
+    inline bool IsUntransformed() const
+    {
+        return (1.0f == mScaling.x && 1.f == mScaling.y &&
+            !mTranslation.x && !mTranslation.y &&
+            mRotation < AI_TT_ROTATION_EPSILON);
+    }
+
+    // -------------------------------------------------------------------
+    /** Build a 3x3 matrix from the transformations
+    */
+    inline void GetMatrix(aiMatrix3x3& mOut)
+    {
+        mOut = aiMatrix3x3();
+
+        if (1.0f != mScaling.x || 1.0f != mScaling.y)
+        {
+            aiMatrix3x3 mScale;
+            mScale.a1 = mScaling.x;
+            mScale.b2 = mScaling.y;
+            mOut = mScale;
+        }
+        if (mRotation)
+        {
+            aiMatrix3x3 mRot;
+            mRot.a1 = mRot.b2 = std::cos(mRotation);
+            mRot.a2 = mRot.b1 = std::sin(mRotation);
+            mRot.a2 = -mRot.a2;
+            mOut *= mRot;
+        }
+        if (mTranslation.x || mTranslation.y)
+        {
+            aiMatrix3x3 mTrans;
+            mTrans.a3 = mTranslation.x;
+            mTrans.b3 = mTranslation.y;
+            mOut *= mTrans;
+        }
+    }
+};
+
+
+// ---------------------------------------------------------------------------
+/** Helper step to compute final UV coordinate sets if there are scalings
+ *  or rotations in the original data read from the file.
+*/
+class TextureTransformStep : public BaseProcess
+{
+public:
+
+    TextureTransformStep();
+    ~TextureTransformStep();
+
+public:
+
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+    // -------------------------------------------------------------------
+    void SetupProperties(const Importer* pImp);
+
+
+protected:
+
+
+    // -------------------------------------------------------------------
+    /** Preprocess a specific UV transformation setup
+     *
+     *  @param info Transformation setup to be preprocessed.
+    */
+    void PreProcessUVTransform(STransformVecInfo& info);
+
+private:
+
+    unsigned int configFlags;
+};
+
+}
+
+#endif //! AI_TEXTURE_TRANSFORM_H_INCLUDED
diff --git a/thirdparty/assimp/code/TriangulateProcess.cpp b/thirdparty/assimp/code/TriangulateProcess.cpp
new file mode 100644
index 0000000000..0f68f47ddb
--- /dev/null
+++ b/thirdparty/assimp/code/TriangulateProcess.cpp
@@ -0,0 +1,530 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  TriangulateProcess.cpp
+ *  @brief Implementation of the post processing step to split up
+ *    all faces with more than three indices into triangles.
+ *
+ *
+ *  The triangulation algorithm will handle concave or convex polygons.
+ *  Self-intersecting or non-planar polygons are not rejected, but
+ *  they're probably not triangulated correctly.
+ *
+ * DEBUG SWITCHES - do not enable any of them in release builds:
+ *
+ * AI_BUILD_TRIANGULATE_COLOR_FACE_WINDING
+ *   - generates vertex colors to represent the face winding order.
+ *     the first vertex of a polygon becomes red, the last blue.
+ * AI_BUILD_TRIANGULATE_DEBUG_POLYS
+ *   - dump all polygons and their triangulation sequences to
+ *     a file
+ */
+#ifndef ASSIMP_BUILD_NO_TRIANGULATE_PROCESS
+#include "TriangulateProcess.h"
+#include "ProcessHelper.h"
+#include "PolyTools.h"
+#include <memory>
+
+//#define AI_BUILD_TRIANGULATE_COLOR_FACE_WINDING
+//#define AI_BUILD_TRIANGULATE_DEBUG_POLYS
+
+#define POLY_GRID_Y 40
+#define POLY_GRID_X 70
+#define POLY_GRID_XPAD 20
+#define POLY_OUTPUT_FILE "assimp_polygons_debug.txt"
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+TriangulateProcess::TriangulateProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+TriangulateProcess::~TriangulateProcess()
+{
+    // nothing to do here
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool TriangulateProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_Triangulate) != 0;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void TriangulateProcess::Execute( aiScene* pScene)
+{
+    ASSIMP_LOG_DEBUG("TriangulateProcess begin");
+
+    bool bHas = false;
+    for( unsigned int a = 0; a < pScene->mNumMeshes; a++)
+    {
+        if (pScene->mMeshes[ a ]) {
+            if ( TriangulateMesh( pScene->mMeshes[ a ] ) ) {
+                bHas = true;
+            }
+        }
+    }
+    if ( bHas ) {
+        ASSIMP_LOG_INFO( "TriangulateProcess finished. All polygons have been triangulated." );
+    } else {
+        ASSIMP_LOG_DEBUG( "TriangulateProcess finished. There was nothing to be done." );
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Triangulates the given mesh.
+bool TriangulateProcess::TriangulateMesh( aiMesh* pMesh)
+{
+    // Now we have aiMesh::mPrimitiveTypes, so this is only here for test cases
+    if (!pMesh->mPrimitiveTypes)    {
+        bool bNeed = false;
+
+        for( unsigned int a = 0; a < pMesh->mNumFaces; a++) {
+            const aiFace& face = pMesh->mFaces[a];
+
+            if( face.mNumIndices != 3)  {
+                bNeed = true;
+            }
+        }
+        if (!bNeed)
+            return false;
+    }
+    else if (!(pMesh->mPrimitiveTypes & aiPrimitiveType_POLYGON)) {
+        return false;
+    }
+
+    // Find out how many output faces we'll get
+    unsigned int numOut = 0, max_out = 0;
+    bool get_normals = true;
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++) {
+        aiFace& face = pMesh->mFaces[a];
+        if (face.mNumIndices <= 4) {
+            get_normals = false;
+        }
+        if( face.mNumIndices <= 3) {
+            numOut++;
+
+        }
+        else {
+            numOut += face.mNumIndices-2;
+            max_out = std::max(max_out,face.mNumIndices);
+        }
+    }
+
+    // Just another check whether aiMesh::mPrimitiveTypes is correct
+    ai_assert(numOut != pMesh->mNumFaces);
+
+    aiVector3D* nor_out = NULL;
+
+    // if we don't have normals yet, but expect them to be a cheap side
+    // product of triangulation anyway, allocate storage for them.
+    if (!pMesh->mNormals && get_normals) {
+        // XXX need a mechanism to inform the GenVertexNormals process to treat these normals as preprocessed per-face normals
+    //  nor_out = pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
+    }
+
+    // the output mesh will contain triangles, but no polys anymore
+    pMesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
+    pMesh->mPrimitiveTypes &= ~aiPrimitiveType_POLYGON;
+
+    aiFace* out = new aiFace[numOut](), *curOut = out;
+    std::vector<aiVector3D> temp_verts3d(max_out+2); /* temporary storage for vertices */
+    std::vector<aiVector2D> temp_verts(max_out+2);
+
+    // Apply vertex colors to represent the face winding?
+#ifdef AI_BUILD_TRIANGULATE_COLOR_FACE_WINDING
+    if (!pMesh->mColors[0])
+        pMesh->mColors[0] = new aiColor4D[pMesh->mNumVertices];
+    else
+        new(pMesh->mColors[0]) aiColor4D[pMesh->mNumVertices];
+
+    aiColor4D* clr = pMesh->mColors[0];
+#endif
+
+#ifdef AI_BUILD_TRIANGULATE_DEBUG_POLYS
+    FILE* fout = fopen(POLY_OUTPUT_FILE,"a");
+#endif
+
+    const aiVector3D* verts = pMesh->mVertices;
+
+    // use std::unique_ptr to avoid slow std::vector<bool> specialiations
+    std::unique_ptr<bool[]> done(new bool[max_out]);
+    for( unsigned int a = 0; a < pMesh->mNumFaces; a++) {
+        aiFace& face = pMesh->mFaces[a];
+
+        unsigned int* idx = face.mIndices;
+        int num = (int)face.mNumIndices, ear = 0, tmp, prev = num-1, next = 0, max = num;
+
+        // Apply vertex colors to represent the face winding?
+#ifdef AI_BUILD_TRIANGULATE_COLOR_FACE_WINDING
+        for (unsigned int i = 0; i < face.mNumIndices; ++i) {
+            aiColor4D& c = clr[idx[i]];
+            c.r = (i+1) / (float)max;
+            c.b = 1.f - c.r;
+        }
+#endif
+
+        aiFace* const last_face = curOut;
+
+        // if it's a simple point,line or triangle: just copy it
+        if( face.mNumIndices <= 3)
+        {
+            aiFace& nface = *curOut++;
+            nface.mNumIndices = face.mNumIndices;
+            nface.mIndices    = face.mIndices;
+
+            face.mIndices = NULL;
+            continue;
+        }
+        // optimized code for quadrilaterals
+        else if ( face.mNumIndices == 4) {
+
+            // quads can have at maximum one concave vertex. Determine
+            // this vertex (if it exists) and start tri-fanning from
+            // it.
+            unsigned int start_vertex = 0;
+            for (unsigned int i = 0; i < 4; ++i) {
+                const aiVector3D& v0 = verts[face.mIndices[(i+3) % 4]];
+                const aiVector3D& v1 = verts[face.mIndices[(i+2) % 4]];
+                const aiVector3D& v2 = verts[face.mIndices[(i+1) % 4]];
+
+                const aiVector3D& v = verts[face.mIndices[i]];
+
+                aiVector3D left = (v0-v);
+                aiVector3D diag = (v1-v);
+                aiVector3D right = (v2-v);
+
+                left.Normalize();
+                diag.Normalize();
+                right.Normalize();
+
+                const float angle = std::acos(left*diag) + std::acos(right*diag);
+                if (angle > AI_MATH_PI_F) {
+                    // this is the concave point
+                    start_vertex = i;
+                    break;
+                }
+            }
+
+            const unsigned int temp[] = {face.mIndices[0], face.mIndices[1], face.mIndices[2], face.mIndices[3]};
+
+            aiFace& nface = *curOut++;
+            nface.mNumIndices = 3;
+            nface.mIndices = face.mIndices;
+
+            nface.mIndices[0] = temp[start_vertex];
+            nface.mIndices[1] = temp[(start_vertex + 1) % 4];
+            nface.mIndices[2] = temp[(start_vertex + 2) % 4];
+
+            aiFace& sface = *curOut++;
+            sface.mNumIndices = 3;
+            sface.mIndices = new unsigned int[3];
+
+            sface.mIndices[0] = temp[start_vertex];
+            sface.mIndices[1] = temp[(start_vertex + 2) % 4];
+            sface.mIndices[2] = temp[(start_vertex + 3) % 4];
+
+            // prevent double deletion of the indices field
+            face.mIndices = NULL;
+            continue;
+        }
+        else
+        {
+            // A polygon with more than 3 vertices can be either concave or convex.
+            // Usually everything we're getting is convex and we could easily
+            // triangulate by tri-fanning. However, LightWave is probably the only
+            // modeling suite to make extensive use of highly concave, monster polygons ...
+            // so we need to apply the full 'ear cutting' algorithm to get it right.
+
+            // RERQUIREMENT: polygon is expected to be simple and *nearly* planar.
+            // We project it onto a plane to get a 2d triangle.
+
+            // Collect all vertices of of the polygon.
+           for (tmp = 0; tmp < max; ++tmp) {
+                temp_verts3d[tmp] = verts[idx[tmp]];
+            }
+
+            // Get newell normal of the polygon. Store it for future use if it's a polygon-only mesh
+            aiVector3D n;
+            NewellNormal<3,3,3>(n,max,&temp_verts3d.front().x,&temp_verts3d.front().y,&temp_verts3d.front().z);
+            if (nor_out) {
+                 for (tmp = 0; tmp < max; ++tmp)
+                     nor_out[idx[tmp]] = n;
+            }
+
+            // Select largest normal coordinate to ignore for projection
+            const float ax = (n.x>0 ? n.x : -n.x);
+            const float ay = (n.y>0 ? n.y : -n.y);
+            const float az = (n.z>0 ? n.z : -n.z);
+
+            unsigned int ac = 0, bc = 1; /* no z coord. projection to xy */
+            float inv = n.z;
+            if (ax > ay) {
+                if (ax > az) { /* no x coord. projection to yz */
+                    ac = 1; bc = 2;
+                    inv = n.x;
+                }
+            }
+            else if (ay > az) { /* no y coord. projection to zy */
+                ac = 2; bc = 0;
+                inv = n.y;
+            }
+
+            // Swap projection axes to take the negated projection vector into account
+            if (inv < 0.f) {
+                std::swap(ac,bc);
+            }
+
+            for (tmp =0; tmp < max; ++tmp) {
+                temp_verts[tmp].x = verts[idx[tmp]][ac];
+                temp_verts[tmp].y = verts[idx[tmp]][bc];
+                done[tmp] = false;
+            }
+
+#ifdef AI_BUILD_TRIANGULATE_DEBUG_POLYS
+            // plot the plane onto which we mapped the polygon to a 2D ASCII pic
+            aiVector2D bmin,bmax;
+            ArrayBounds(&temp_verts[0],max,bmin,bmax);
+
+            char grid[POLY_GRID_Y][POLY_GRID_X+POLY_GRID_XPAD];
+            std::fill_n((char*)grid,POLY_GRID_Y*(POLY_GRID_X+POLY_GRID_XPAD),' ');
+
+            for (int i =0; i < max; ++i) {
+                const aiVector2D& v = (temp_verts[i] - bmin) / (bmax-bmin);
+                const size_t x = static_cast<size_t>(v.x*(POLY_GRID_X-1)), y = static_cast<size_t>(v.y*(POLY_GRID_Y-1));
+                char* loc = grid[y]+x;
+                if (grid[y][x] != ' ') {
+                    for(;*loc != ' '; ++loc);
+                    *loc++ = '_';
+                }
+                *(loc+::ai_snprintf(loc, POLY_GRID_XPAD,"%i",i)) = ' ';
+            }
+
+
+            for(size_t y = 0; y < POLY_GRID_Y; ++y) {
+                grid[y][POLY_GRID_X+POLY_GRID_XPAD-1] = '\0';
+                fprintf(fout,"%s\n",grid[y]);
+            }
+
+            fprintf(fout,"\ntriangulation sequence: ");
+#endif
+
+            //
+            // FIXME: currently this is the slow O(kn) variant with a worst case
+            // complexity of O(n^2) (I think). Can be done in O(n).
+            while (num > 3) {
+
+                // Find the next ear of the polygon
+                int num_found = 0;
+                for (ear = next;;prev = ear,ear = next) {
+
+                    // break after we looped two times without a positive match
+                    for (next=ear+1;done[(next>=max?next=0:next)];++next);
+                    if (next < ear) {
+                        if (++num_found == 2) {
+                            break;
+                        }
+                    }
+                    const aiVector2D* pnt1 = &temp_verts[ear],
+                        *pnt0 = &temp_verts[prev],
+                        *pnt2 = &temp_verts[next];
+
+                    // Must be a convex point. Assuming ccw winding, it must be on the right of the line between p-1 and p+1.
+                    if (OnLeftSideOfLine2D(*pnt0,*pnt2,*pnt1)) {
+                        continue;
+                    }
+
+                    // and no other point may be contained in this triangle
+                    for ( tmp = 0; tmp < max; ++tmp) {
+
+                        // We need to compare the actual values because it's possible that multiple indexes in
+                        // the polygon are referring to the same position. concave_polygon.obj is a sample
+                        //
+                        // FIXME: Use 'epsiloned' comparisons instead? Due to numeric inaccuracies in
+                        // PointInTriangle() I'm guessing that it's actually possible to construct
+                        // input data that would cause us to end up with no ears. The problem is,
+                        // which epsilon? If we chose a too large value, we'd get wrong results
+                        const aiVector2D& vtmp = temp_verts[tmp];
+                        if ( vtmp != *pnt1 && vtmp != *pnt2 && vtmp != *pnt0 && PointInTriangle2D(*pnt0,*pnt1,*pnt2,vtmp)) {
+                            break;
+                        }
+                    }
+                    if (tmp != max) {
+                        continue;
+                    }
+
+                    // this vertex is an ear
+                    break;
+                }
+                if (num_found == 2) {
+
+                    // Due to the 'two ear theorem', every simple polygon with more than three points must
+                    // have 2 'ears'. Here's definitely something wrong ... but we don't give up yet.
+                    //
+
+                    // Instead we're continuing with the standard tri-fanning algorithm which we'd
+                    // use if we had only convex polygons. That's life.
+                    ASSIMP_LOG_ERROR("Failed to triangulate polygon (no ear found). Probably not a simple polygon?");
+
+#ifdef AI_BUILD_TRIANGULATE_DEBUG_POLYS
+                    fprintf(fout,"critical error here, no ear found! ");
+#endif
+                    num = 0;
+                    break;
+
+                    curOut -= (max-num); /* undo all previous work */
+                    for (tmp = 0; tmp < max-2; ++tmp) {
+                        aiFace& nface = *curOut++;
+
+                        nface.mNumIndices = 3;
+                        if (!nface.mIndices)
+                            nface.mIndices = new unsigned int[3];
+
+                        nface.mIndices[0] = 0;
+                        nface.mIndices[1] = tmp+1;
+                        nface.mIndices[2] = tmp+2;
+
+                    }
+                    num = 0;
+                    break;
+                }
+
+                aiFace& nface = *curOut++;
+                nface.mNumIndices = 3;
+
+                if (!nface.mIndices) {
+                    nface.mIndices = new unsigned int[3];
+                }
+
+                // setup indices for the new triangle ...
+                nface.mIndices[0] = prev;
+                nface.mIndices[1] = ear;
+                nface.mIndices[2] = next;
+
+                // exclude the ear from most further processing
+                done[ear] = true;
+                --num;
+            }
+            if (num > 0) {
+                // We have three indices forming the last 'ear' remaining. Collect them.
+                aiFace& nface = *curOut++;
+                nface.mNumIndices = 3;
+                if (!nface.mIndices) {
+                    nface.mIndices = new unsigned int[3];
+                }
+
+                for (tmp = 0; done[tmp]; ++tmp);
+                nface.mIndices[0] = tmp;
+
+                for (++tmp; done[tmp]; ++tmp);
+                nface.mIndices[1] = tmp;
+
+                for (++tmp; done[tmp]; ++tmp);
+                nface.mIndices[2] = tmp;
+
+            }
+        }
+
+#ifdef AI_BUILD_TRIANGULATE_DEBUG_POLYS
+
+        for(aiFace* f = last_face; f != curOut; ++f) {
+            unsigned int* i = f->mIndices;
+            fprintf(fout," (%i %i %i)",i[0],i[1],i[2]);
+        }
+
+        fprintf(fout,"\n*********************************************************************\n");
+        fflush(fout);
+
+#endif
+
+        for(aiFace* f = last_face; f != curOut; ) {
+            unsigned int* i = f->mIndices;
+
+            //  drop dumb 0-area triangles - deactivated for now:
+            //FindDegenerates post processing step can do the same thing
+            //if (std::fabs(GetArea2D(temp_verts[i[0]],temp_verts[i[1]],temp_verts[i[2]])) < 1e-5f) {
+            //    ASSIMP_LOG_DEBUG("Dropping triangle with area 0");
+            //    --curOut;
+
+            //    delete[] f->mIndices;
+            //    f->mIndices = nullptr;
+
+            //    for(aiFace* ff = f; ff != curOut; ++ff) {
+            //        ff->mNumIndices = (ff+1)->mNumIndices;
+            //        ff->mIndices = (ff+1)->mIndices;
+            //        (ff+1)->mIndices = nullptr;
+            //    }
+            //    continue;
+            //}
+
+            i[0] = idx[i[0]];
+            i[1] = idx[i[1]];
+            i[2] = idx[i[2]];
+            ++f;
+        }
+
+        delete[] face.mIndices;
+        face.mIndices = NULL;
+    }
+
+#ifdef AI_BUILD_TRIANGULATE_DEBUG_POLYS
+    fclose(fout);
+#endif
+
+    // kill the old faces
+    delete [] pMesh->mFaces;
+
+    // ... and store the new ones
+    pMesh->mFaces    = out;
+    pMesh->mNumFaces = (unsigned int)(curOut-out); /* not necessarily equal to numOut */
+    return true;
+}
+
+#endif // !! ASSIMP_BUILD_NO_TRIANGULATE_PROCESS
diff --git a/thirdparty/assimp/code/TriangulateProcess.h b/thirdparty/assimp/code/TriangulateProcess.h
new file mode 100644
index 0000000000..47bd2115ad
--- /dev/null
+++ b/thirdparty/assimp/code/TriangulateProcess.h
@@ -0,0 +1,95 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a post processing step to triangulate all faces
+          with more than three vertices.
+ */
+#ifndef AI_TRIANGULATEPROCESS_H_INC
+#define AI_TRIANGULATEPROCESS_H_INC
+
+#include "BaseProcess.h"
+
+struct aiMesh;
+
+class TriangulateProcessTest;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** The TriangulateProcess splits up all faces with more than three indices
+ * into triangles. You usually want this to happen because the graphics cards
+ * need their data as triangles.
+ */
+class ASSIMP_API TriangulateProcess : public BaseProcess
+{
+public:
+
+    TriangulateProcess();
+    ~TriangulateProcess();
+
+public:
+    // -------------------------------------------------------------------
+    /** Returns whether the processing step is present in the given flag field.
+     * @param pFlags The processing flags the importer was called with. A bitwise
+     *   combination of #aiPostProcessSteps.
+     * @return true if the process is present in this flag fields, false if not.
+    */
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Executes the post processing step on the given imported data.
+    * At the moment a process is not supposed to fail.
+    * @param pScene The imported data to work at.
+    */
+    void Execute( aiScene* pScene);
+
+public:
+    // -------------------------------------------------------------------
+    /** Triangulates the given mesh.
+     * @param pMesh The mesh to triangulate.
+     */
+    bool TriangulateMesh( aiMesh* pMesh);
+};
+
+} // end of namespace Assimp
+
+#endif // AI_TRIANGULATEPROCESS_H_INC
diff --git a/thirdparty/assimp/code/ValidateDataStructure.cpp b/thirdparty/assimp/code/ValidateDataStructure.cpp
new file mode 100644
index 0000000000..657b0361b7
--- /dev/null
+++ b/thirdparty/assimp/code/ValidateDataStructure.cpp
@@ -0,0 +1,986 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  ValidateDataStructure.cpp
+ *  @brief Implementation of the post processing step to validate
+ *    the data structure returned by Assimp.
+ */
+
+
+
+// internal headers
+#include "ValidateDataStructure.h"
+#include <assimp/BaseImporter.h>
+#include <assimp/fast_atof.h>
+#include "ProcessHelper.h"
+#include <memory>
+
+// CRT headers
+#include <stdarg.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+ValidateDSProcess::ValidateDSProcess() :
+    mScene()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+ValidateDSProcess::~ValidateDSProcess()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the processing step is present in the given flag field.
+bool ValidateDSProcess::IsActive( unsigned int pFlags) const
+{
+    return (pFlags & aiProcess_ValidateDataStructure) != 0;
+}
+// ------------------------------------------------------------------------------------------------
+AI_WONT_RETURN void ValidateDSProcess::ReportError(const char* msg,...)
+{
+    ai_assert(NULL != msg);
+
+    va_list args;
+    va_start(args,msg);
+
+    char szBuffer[3000];
+    const int iLen = vsprintf(szBuffer,msg,args);
+    ai_assert(iLen > 0);
+
+    va_end(args);
+
+    throw DeadlyImportError("Validation failed: " + std::string(szBuffer,iLen));
+}
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::ReportWarning(const char* msg,...)
+{
+    ai_assert(NULL != msg);
+
+    va_list args;
+    va_start(args,msg);
+
+    char szBuffer[3000];
+    const int iLen = vsprintf(szBuffer,msg,args);
+    ai_assert(iLen > 0);
+
+    va_end(args);
+    ASSIMP_LOG_WARN("Validation warning: " + std::string(szBuffer,iLen));
+}
+
+// ------------------------------------------------------------------------------------------------
+inline int HasNameMatch(const aiString& in, aiNode* node)
+{
+    int result = (node->mName == in ? 1 : 0 );
+    for (unsigned int i = 0; i < node->mNumChildren;++i)    {
+        result += HasNameMatch(in,node->mChildren[i]);
+    }
+    return result;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline void ValidateDSProcess::DoValidation(T** parray, unsigned int size,
+    const char* firstName, const char* secondName)
+{
+    // validate all entries
+    if (size)
+    {
+        if (!parray)
+        {
+            ReportError("aiScene::%s is NULL (aiScene::%s is %i)",
+                firstName, secondName, size);
+        }
+        for (unsigned int i = 0; i < size;++i)
+        {
+            if (!parray[i])
+            {
+                ReportError("aiScene::%s[%i] is NULL (aiScene::%s is %i)",
+                    firstName,i,secondName,size);
+            }
+            Validate(parray[i]);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline void ValidateDSProcess::DoValidationEx(T** parray, unsigned int size,
+    const char* firstName, const char* secondName)
+{
+    // validate all entries
+    if (size)
+    {
+        if (!parray)    {
+            ReportError("aiScene::%s is NULL (aiScene::%s is %i)",
+                firstName, secondName, size);
+        }
+        for (unsigned int i = 0; i < size;++i)
+        {
+            if (!parray[i])
+            {
+                ReportError("aiScene::%s[%u] is NULL (aiScene::%s is %u)",
+                    firstName,i,secondName,size);
+            }
+            Validate(parray[i]);
+
+            // check whether there are duplicate names
+            for (unsigned int a = i+1; a < size;++a)
+            {
+                if (parray[i]->mName == parray[a]->mName)
+                {
+                	ReportError("aiScene::%s[%u] has the same name as "
+                        "aiScene::%s[%u]",firstName, i,secondName, a);
+                }
+            }
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename T>
+inline
+void ValidateDSProcess::DoValidationWithNameCheck(T** array, unsigned int size, const char* firstName, const char* secondName) {
+    // validate all entries
+    DoValidationEx(array,size,firstName,secondName);
+
+    for (unsigned int i = 0; i < size;++i) {
+        int res = HasNameMatch(array[i]->mName,mScene->mRootNode);
+        if (0 == res)   {
+            const std::string name = static_cast<char*>(array[i]->mName.data);
+            ReportError("aiScene::%s[%i] has no corresponding node in the scene graph (%s)",
+                firstName,i, name.c_str());
+        } else if (1 != res)  {
+            const std::string name = static_cast<char*>(array[i]->mName.data);
+            ReportError("aiScene::%s[%i]: there are more than one nodes with %s as name",
+                firstName,i, name.c_str());
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+// Executes the post processing step on the given imported data.
+void ValidateDSProcess::Execute( aiScene* pScene)
+{
+    this->mScene = pScene;
+    ASSIMP_LOG_DEBUG("ValidateDataStructureProcess begin");
+
+    // validate the node graph of the scene
+    Validate(pScene->mRootNode);
+
+    // validate all meshes
+    if (pScene->mNumMeshes) {
+        DoValidation(pScene->mMeshes,pScene->mNumMeshes,"mMeshes","mNumMeshes");
+    }
+    else if (!(mScene->mFlags & AI_SCENE_FLAGS_INCOMPLETE)) {
+        ReportError("aiScene::mNumMeshes is 0. At least one mesh must be there");
+    }
+    else if (pScene->mMeshes)   {
+        ReportError("aiScene::mMeshes is non-null although there are no meshes");
+    }
+
+    // validate all animations
+    if (pScene->mNumAnimations) {
+        DoValidation(pScene->mAnimations,pScene->mNumAnimations,
+            "mAnimations","mNumAnimations");
+    }
+    else if (pScene->mAnimations)   {
+        ReportError("aiScene::mAnimations is non-null although there are no animations");
+    }
+
+    // validate all cameras
+    if (pScene->mNumCameras) {
+        DoValidationWithNameCheck(pScene->mCameras,pScene->mNumCameras,
+            "mCameras","mNumCameras");
+    }
+    else if (pScene->mCameras)  {
+        ReportError("aiScene::mCameras is non-null although there are no cameras");
+    }
+
+    // validate all lights
+    if (pScene->mNumLights) {
+        DoValidationWithNameCheck(pScene->mLights,pScene->mNumLights,
+            "mLights","mNumLights");
+    }
+    else if (pScene->mLights)   {
+        ReportError("aiScene::mLights is non-null although there are no lights");
+    }
+
+    // validate all textures
+    if (pScene->mNumTextures) {
+        DoValidation(pScene->mTextures,pScene->mNumTextures,
+            "mTextures","mNumTextures");
+    }
+    else if (pScene->mTextures) {
+        ReportError("aiScene::mTextures is non-null although there are no textures");
+    }
+
+    // validate all materials
+    if (pScene->mNumMaterials) {
+        DoValidation(pScene->mMaterials,pScene->mNumMaterials,"mMaterials","mNumMaterials");
+    }
+#if 0
+    // NOTE: ScenePreprocessor generates a default material if none is there
+    else if (!(mScene->mFlags & AI_SCENE_FLAGS_INCOMPLETE)) {
+        ReportError("aiScene::mNumMaterials is 0. At least one material must be there");
+    }
+#endif
+    else if (pScene->mMaterials)    {
+        ReportError("aiScene::mMaterials is non-null although there are no materials");
+    }
+
+//  if (!has)ReportError("The aiScene data structure is empty");
+    ASSIMP_LOG_DEBUG("ValidateDataStructureProcess end");
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiLight* pLight)
+{
+    if (pLight->mType == aiLightSource_UNDEFINED)
+        ReportWarning("aiLight::mType is aiLightSource_UNDEFINED");
+
+    if (!pLight->mAttenuationConstant &&
+        !pLight->mAttenuationLinear   &&
+        !pLight->mAttenuationQuadratic) {
+        ReportWarning("aiLight::mAttenuationXXX - all are zero");
+    }
+
+    if (pLight->mAngleInnerCone > pLight->mAngleOuterCone)
+        ReportError("aiLight::mAngleInnerCone is larger than aiLight::mAngleOuterCone");
+
+    if (pLight->mColorDiffuse.IsBlack() && pLight->mColorAmbient.IsBlack()
+        && pLight->mColorSpecular.IsBlack())
+    {
+        ReportWarning("aiLight::mColorXXX - all are black and won't have any influence");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiCamera* pCamera)
+{
+    if (pCamera->mClipPlaneFar <= pCamera->mClipPlaneNear)
+        ReportError("aiCamera::mClipPlaneFar must be >= aiCamera::mClipPlaneNear");
+
+    // FIX: there are many 3ds files with invalid FOVs. No reason to
+    // reject them at all ... a warning is appropriate.
+    if (!pCamera->mHorizontalFOV || pCamera->mHorizontalFOV >= (float)AI_MATH_PI)
+        ReportWarning("%f is not a valid value for aiCamera::mHorizontalFOV",pCamera->mHorizontalFOV);
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiMesh* pMesh)
+{
+    // validate the material index of the mesh
+    if (mScene->mNumMaterials && pMesh->mMaterialIndex >= mScene->mNumMaterials)
+    {
+        ReportError("aiMesh::mMaterialIndex is invalid (value: %i maximum: %i)",
+            pMesh->mMaterialIndex,mScene->mNumMaterials-1);
+    }
+
+    Validate(&pMesh->mName);
+
+    for (unsigned int i = 0; i < pMesh->mNumFaces; ++i)
+    {
+        aiFace& face = pMesh->mFaces[i];
+
+        if (pMesh->mPrimitiveTypes)
+        {
+            switch (face.mNumIndices)
+            {
+            case 0:
+                ReportError("aiMesh::mFaces[%i].mNumIndices is 0",i);
+                break;
+            case 1:
+                if (0 == (pMesh->mPrimitiveTypes & aiPrimitiveType_POINT))
+                {
+                    ReportError("aiMesh::mFaces[%i] is a POINT but aiMesh::mPrimitiveTypes "
+                        "does not report the POINT flag",i);
+                }
+                break;
+            case 2:
+                if (0 == (pMesh->mPrimitiveTypes & aiPrimitiveType_LINE))
+                {
+                    ReportError("aiMesh::mFaces[%i] is a LINE but aiMesh::mPrimitiveTypes "
+                        "does not report the LINE flag",i);
+                }
+                break;
+            case 3:
+                if (0 == (pMesh->mPrimitiveTypes & aiPrimitiveType_TRIANGLE))
+                {
+                    ReportError("aiMesh::mFaces[%i] is a TRIANGLE but aiMesh::mPrimitiveTypes "
+                        "does not report the TRIANGLE flag",i);
+                }
+                break;
+            default:
+                if (0 == (pMesh->mPrimitiveTypes & aiPrimitiveType_POLYGON))
+                {
+                    this->ReportError("aiMesh::mFaces[%i] is a POLYGON but aiMesh::mPrimitiveTypes "
+                        "does not report the POLYGON flag",i);
+                }
+                break;
+            };
+        }
+
+        if (!face.mIndices)
+            ReportError("aiMesh::mFaces[%i].mIndices is NULL",i);
+    }
+
+    // positions must always be there ...
+    if (!pMesh->mNumVertices || (!pMesh->mVertices && !mScene->mFlags)) {
+        ReportError("The mesh %s contains no vertices", pMesh->mName.C_Str());
+    }
+
+    if (pMesh->mNumVertices > AI_MAX_VERTICES) {
+        ReportError("Mesh has too many vertices: %u, but the limit is %u",pMesh->mNumVertices,AI_MAX_VERTICES);
+    }
+    if (pMesh->mNumFaces > AI_MAX_FACES) {
+        ReportError("Mesh has too many faces: %u, but the limit is %u",pMesh->mNumFaces,AI_MAX_FACES);
+    }
+
+    // if tangents are there there must also be bitangent vectors ...
+    if ((pMesh->mTangents != NULL) != (pMesh->mBitangents != NULL)) {
+        ReportError("If there are tangents, bitangent vectors must be present as well");
+    }
+
+    // faces, too
+    if (!pMesh->mNumFaces || (!pMesh->mFaces && !mScene->mFlags))   {
+        ReportError("Mesh %s contains no faces", pMesh->mName.C_Str());
+    }
+
+    // now check whether the face indexing layout is correct:
+    // unique vertices, pseudo-indexed.
+    std::vector<bool> abRefList;
+    abRefList.resize(pMesh->mNumVertices,false);
+    for (unsigned int i = 0; i < pMesh->mNumFaces;++i)
+    {
+        aiFace& face = pMesh->mFaces[i];
+        if (face.mNumIndices > AI_MAX_FACE_INDICES) {
+            ReportError("Face %u has too many faces: %u, but the limit is %u",i,face.mNumIndices,AI_MAX_FACE_INDICES);
+        }
+
+        for (unsigned int a = 0; a < face.mNumIndices;++a)
+        {
+            if (face.mIndices[a] >= pMesh->mNumVertices)    {
+                ReportError("aiMesh::mFaces[%i]::mIndices[%i] is out of range",i,a);
+            }
+            // the MSB flag is temporarily used by the extra verbose
+            // mode to tell us that the JoinVerticesProcess might have
+            // been executed already.
+			/*if ( !(this->mScene->mFlags & AI_SCENE_FLAGS_NON_VERBOSE_FORMAT ) && !(this->mScene->mFlags & AI_SCENE_FLAGS_ALLOW_SHARED) &&
+				abRefList[face.mIndices[a]])
+            {
+                ReportError("aiMesh::mVertices[%i] is referenced twice - second "
+                    "time by aiMesh::mFaces[%i]::mIndices[%i]",face.mIndices[a],i,a);
+            }*/
+            abRefList[face.mIndices[a]] = true;
+        }
+    }
+
+    // check whether there are vertices that aren't referenced by a face
+    bool b = false;
+    for (unsigned int i = 0; i < pMesh->mNumVertices;++i)   {
+        if (!abRefList[i])b = true;
+    }
+    abRefList.clear();
+    if (b) {
+    	ReportWarning("There are unreferenced vertices");
+    }
+
+    // texture channel 2 may not be set if channel 1 is zero ...
+    {
+        unsigned int i = 0;
+        for (;i < AI_MAX_NUMBER_OF_TEXTURECOORDS;++i)
+        {
+            if (!pMesh->HasTextureCoords(i))break;
+        }
+        for (;i < AI_MAX_NUMBER_OF_TEXTURECOORDS;++i)
+            if (pMesh->HasTextureCoords(i))
+            {
+                ReportError("Texture coordinate channel %i exists "
+                    "although the previous channel was NULL.",i);
+            }
+    }
+    // the same for the vertex colors
+    {
+        unsigned int i = 0;
+        for (;i < AI_MAX_NUMBER_OF_COLOR_SETS;++i)
+        {
+            if (!pMesh->HasVertexColors(i))break;
+        }
+        for (;i < AI_MAX_NUMBER_OF_COLOR_SETS;++i)
+            if (pMesh->HasVertexColors(i))
+            {
+                ReportError("Vertex color channel %i is exists "
+                    "although the previous channel was NULL.",i);
+            }
+    }
+
+
+    // now validate all bones
+    if (pMesh->mNumBones)
+    {
+        if (!pMesh->mBones)
+        {
+            ReportError("aiMesh::mBones is NULL (aiMesh::mNumBones is %i)",
+                pMesh->mNumBones);
+        }
+        std::unique_ptr<float[]> afSum(nullptr);
+        if (pMesh->mNumVertices)
+        {
+            afSum.reset(new float[pMesh->mNumVertices]);
+            for (unsigned int i = 0; i < pMesh->mNumVertices;++i)
+                afSum[i] = 0.0f;
+        }
+
+        // check whether there are duplicate bone names
+        for (unsigned int i = 0; i < pMesh->mNumBones;++i)
+        {
+            const aiBone* bone = pMesh->mBones[i];
+            if (bone->mNumWeights > AI_MAX_BONE_WEIGHTS) {
+                ReportError("Bone %u has too many weights: %u, but the limit is %u",i,bone->mNumWeights,AI_MAX_BONE_WEIGHTS);
+            }
+
+            if (!pMesh->mBones[i])
+            {
+                ReportError("aiMesh::mBones[%i] is NULL (aiMesh::mNumBones is %i)",
+                    i,pMesh->mNumBones);
+            }
+            Validate(pMesh,pMesh->mBones[i],afSum.get());
+
+            for (unsigned int a = i+1; a < pMesh->mNumBones;++a)
+            {
+                if (pMesh->mBones[i]->mName == pMesh->mBones[a]->mName)
+                {
+                    const char *name = "unknown";
+                    if (nullptr != pMesh->mBones[ i ]->mName.C_Str()) {
+                        name = pMesh->mBones[ i ]->mName.C_Str();
+                    }
+                    ReportError("aiMesh::mBones[%i], name = \"%s\" has the same name as "
+                        "aiMesh::mBones[%i]", i, name, a );
+                }
+            }
+        }
+        // check whether all bone weights for a vertex sum to 1.0 ...
+        for (unsigned int i = 0; i < pMesh->mNumVertices;++i)
+        {
+            if (afSum[i] && (afSum[i] <= 0.94 || afSum[i] >= 1.05)) {
+                ReportWarning("aiMesh::mVertices[%i]: bone weight sum != 1.0 (sum is %f)",i,afSum[i]);
+            }
+        }
+    }
+    else if (pMesh->mBones)
+    {
+        ReportError("aiMesh::mBones is non-null although there are no bones");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiMesh* pMesh,
+    const aiBone* pBone,float* afSum)
+{
+    this->Validate(&pBone->mName);
+
+    if (!pBone->mNumWeights)    {
+        ReportError("aiBone::mNumWeights is zero");
+    }
+
+    // check whether all vertices affected by this bone are valid
+    for (unsigned int i = 0; i < pBone->mNumWeights;++i)
+    {
+        if (pBone->mWeights[i].mVertexId >= pMesh->mNumVertices)    {
+            ReportError("aiBone::mWeights[%i].mVertexId is out of range",i);
+        }
+        else if (!pBone->mWeights[i].mWeight || pBone->mWeights[i].mWeight > 1.0f)  {
+            ReportWarning("aiBone::mWeights[%i].mWeight has an invalid value",i);
+        }
+        afSum[pBone->mWeights[i].mVertexId] += pBone->mWeights[i].mWeight;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiAnimation* pAnimation)
+{
+    Validate(&pAnimation->mName);
+
+    // validate all materials
+    if (pAnimation->mNumChannels)
+    {
+        if (!pAnimation->mChannels) {
+            ReportError("aiAnimation::mChannels is NULL (aiAnimation::mNumChannels is %i)",
+                pAnimation->mNumChannels);
+        }
+        for (unsigned int i = 0; i < pAnimation->mNumChannels;++i)
+        {
+            if (!pAnimation->mChannels[i])
+            {
+                ReportError("aiAnimation::mChannels[%i] is NULL (aiAnimation::mNumChannels is %i)",
+                    i, pAnimation->mNumChannels);
+            }
+            Validate(pAnimation, pAnimation->mChannels[i]);
+        }
+    }
+    else {
+    	ReportError("aiAnimation::mNumChannels is 0. At least one node animation channel must be there.");
+    }
+
+    // Animation duration is allowed to be zero in cases where the anim contains only a single key frame.
+    // if (!pAnimation->mDuration)this->ReportError("aiAnimation::mDuration is zero");
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::SearchForInvalidTextures(const aiMaterial* pMaterial,
+    aiTextureType type)
+{
+    const char* szType = TextureTypeToString(type);
+
+    // ****************************************************************************
+    // Search all keys of the material ...
+    // textures must be specified with ascending indices
+    // (e.g. diffuse #2 may not be specified if diffuse #1 is not there ...)
+    // ****************************************************************************
+
+    int iNumIndices = 0;
+    int iIndex = -1;
+    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i) {
+        aiMaterialProperty* prop = pMaterial->mProperties[ i ];
+        ai_assert(nullptr != prop);
+        if ( !::strcmp(prop->mKey.data,"$tex.file") && prop->mSemantic == static_cast<unsigned int>(type))  {
+            iIndex = std::max(iIndex, (int) prop->mIndex);
+            ++iNumIndices;
+
+            if (aiPTI_String != prop->mType) {
+                ReportError("Material property %s is expected to be a string", prop->mKey.data);
+            }
+        }
+    }
+    if (iIndex +1 != iNumIndices)   {
+        ReportError("%s #%i is set, but there are only %i %s textures",
+            szType,iIndex,iNumIndices,szType);
+    }
+    if (!iNumIndices)return;
+    std::vector<aiTextureMapping> mappings(iNumIndices);
+
+    // Now check whether all UV indices are valid ...
+    bool bNoSpecified = true;
+    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i)
+    {
+        aiMaterialProperty* prop = pMaterial->mProperties[i];
+        if (prop->mSemantic != type)continue;
+
+        if ((int)prop->mIndex >= iNumIndices)
+        {
+            ReportError("Found texture property with index %i, although there "
+                "are only %i textures of type %s",
+                prop->mIndex, iNumIndices, szType);
+        }
+
+        if (!::strcmp(prop->mKey.data,"$tex.mapping"))  {
+            if (aiPTI_Integer != prop->mType || prop->mDataLength < sizeof(aiTextureMapping))
+            {
+                ReportError("Material property %s%i is expected to be an integer (size is %i)",
+                    prop->mKey.data,prop->mIndex,prop->mDataLength);
+            }
+            mappings[prop->mIndex] = *((aiTextureMapping*)prop->mData);
+        }
+        else if (!::strcmp(prop->mKey.data,"$tex.uvtrafo")) {
+            if (aiPTI_Float != prop->mType || prop->mDataLength < sizeof(aiUVTransform))
+            {
+                ReportError("Material property %s%i is expected to be 5 floats large (size is %i)",
+                    prop->mKey.data,prop->mIndex, prop->mDataLength);
+            }
+            mappings[prop->mIndex] = *((aiTextureMapping*)prop->mData);
+        }
+        else if (!::strcmp(prop->mKey.data,"$tex.uvwsrc")) {
+            if (aiPTI_Integer != prop->mType || sizeof(int) > prop->mDataLength)
+            {
+                ReportError("Material property %s%i is expected to be an integer (size is %i)",
+                    prop->mKey.data,prop->mIndex,prop->mDataLength);
+            }
+            bNoSpecified = false;
+
+            // Ignore UV indices for texture channels that are not there ...
+
+            // Get the value
+            iIndex = *((unsigned int*)prop->mData);
+
+            // Check whether there is a mesh using this material
+            // which has not enough UV channels ...
+            for (unsigned int a = 0; a < mScene->mNumMeshes;++a)
+            {
+                aiMesh* mesh = this->mScene->mMeshes[a];
+                if(mesh->mMaterialIndex == (unsigned int)i)
+                {
+                    int iChannels = 0;
+                    while (mesh->HasTextureCoords(iChannels))++iChannels;
+                    if (iIndex >= iChannels)
+                    {
+                        ReportWarning("Invalid UV index: %i (key %s). Mesh %i has only %i UV channels",
+                            iIndex,prop->mKey.data,a,iChannels);
+                    }
+                }
+            }
+        }
+    }
+    if (bNoSpecified)
+    {
+        // Assume that all textures are using the first UV channel
+        for (unsigned int a = 0; a < mScene->mNumMeshes;++a)
+        {
+            aiMesh* mesh = mScene->mMeshes[a];
+            if(mesh->mMaterialIndex == (unsigned int)iIndex && mappings[0] == aiTextureMapping_UV)
+            {
+                if (!mesh->mTextureCoords[0])
+                {
+                    // This is a special case ... it could be that the
+                    // original mesh format intended the use of a special
+                    // mapping here.
+                    ReportWarning("UV-mapped texture, but there are no UV coords");
+                }
+            }
+        }
+    }
+}
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiMaterial* pMaterial)
+{
+    // check whether there are material keys that are obviously not legal
+    for (unsigned int i = 0; i < pMaterial->mNumProperties;++i)
+    {
+        const aiMaterialProperty* prop = pMaterial->mProperties[i];
+        if (!prop)  {
+            ReportError("aiMaterial::mProperties[%i] is NULL (aiMaterial::mNumProperties is %i)",
+                i,pMaterial->mNumProperties);
+        }
+        if (!prop->mDataLength || !prop->mData) {
+            ReportError("aiMaterial::mProperties[%i].mDataLength or "
+                "aiMaterial::mProperties[%i].mData is 0",i,i);
+        }
+        // check all predefined types
+        if (aiPTI_String == prop->mType)    {
+            // FIX: strings are now stored in a less expensive way, but we can't use the
+            // validation routine for 'normal' aiStrings
+            if (prop->mDataLength < 5 || prop->mDataLength < 4 + (*reinterpret_cast<uint32_t*>(prop->mData)) + 1)   {
+                ReportError("aiMaterial::mProperties[%i].mDataLength is "
+                    "too small to contain a string (%i, needed: %i)",
+                    i,prop->mDataLength,static_cast<int>(sizeof(aiString)));
+            }
+            if(prop->mData[prop->mDataLength-1]) {
+                ReportError("Missing null-terminator in string material property");
+            }
+        //  Validate((const aiString*)prop->mData);
+        }
+        else if (aiPTI_Float == prop->mType)    {
+            if (prop->mDataLength < sizeof(float))  {
+                ReportError("aiMaterial::mProperties[%i].mDataLength is "
+                    "too small to contain a float (%i, needed: %i)",
+                    i,prop->mDataLength, static_cast<int>(sizeof(float)));
+            }
+        }
+        else if (aiPTI_Integer == prop->mType)  {
+            if (prop->mDataLength < sizeof(int))    {
+                ReportError("aiMaterial::mProperties[%i].mDataLength is "
+                    "too small to contain an integer (%i, needed: %i)",
+                    i,prop->mDataLength, static_cast<int>(sizeof(int)));
+            }
+        }
+        // TODO: check whether there is a key with an unknown name ...
+    }
+
+    // make some more specific tests
+    ai_real fTemp;
+    int iShading;
+    if (AI_SUCCESS == aiGetMaterialInteger( pMaterial,AI_MATKEY_SHADING_MODEL,&iShading))   {
+        switch ((aiShadingMode)iShading)
+        {
+        case aiShadingMode_Blinn:
+        case aiShadingMode_CookTorrance:
+        case aiShadingMode_Phong:
+
+            if (AI_SUCCESS != aiGetMaterialFloat(pMaterial,AI_MATKEY_SHININESS,&fTemp)) {
+                ReportWarning("A specular shading model is specified but there is no "
+                    "AI_MATKEY_SHININESS key");
+            }
+            if (AI_SUCCESS == aiGetMaterialFloat(pMaterial,AI_MATKEY_SHININESS_STRENGTH,&fTemp) && !fTemp)  {
+                ReportWarning("A specular shading model is specified but the value of the "
+                    "AI_MATKEY_SHININESS_STRENGTH key is 0.0");
+            }
+            break;
+        default: ;
+        };
+    }
+
+    if (AI_SUCCESS == aiGetMaterialFloat( pMaterial,AI_MATKEY_OPACITY,&fTemp) && (!fTemp || fTemp > 1.01)) {
+        ReportWarning("Invalid opacity value (must be 0 < opacity < 1.0)");
+    }
+
+    // Check whether there are invalid texture keys
+    // TODO: that's a relict of the past, where texture type and index were baked
+    // into the material string ... we could do that in one single pass.
+    SearchForInvalidTextures(pMaterial,aiTextureType_DIFFUSE);
+    SearchForInvalidTextures(pMaterial,aiTextureType_SPECULAR);
+    SearchForInvalidTextures(pMaterial,aiTextureType_AMBIENT);
+    SearchForInvalidTextures(pMaterial,aiTextureType_EMISSIVE);
+    SearchForInvalidTextures(pMaterial,aiTextureType_OPACITY);
+    SearchForInvalidTextures(pMaterial,aiTextureType_SHININESS);
+    SearchForInvalidTextures(pMaterial,aiTextureType_HEIGHT);
+    SearchForInvalidTextures(pMaterial,aiTextureType_NORMALS);
+    SearchForInvalidTextures(pMaterial,aiTextureType_DISPLACEMENT);
+    SearchForInvalidTextures(pMaterial,aiTextureType_LIGHTMAP);
+    SearchForInvalidTextures(pMaterial,aiTextureType_REFLECTION);
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiTexture* pTexture)
+{
+    // the data section may NEVER be NULL
+    if (!pTexture->pcData)  {
+        ReportError("aiTexture::pcData is NULL");
+    }
+    if (pTexture->mHeight)
+    {
+        if (!pTexture->mWidth){
+        	ReportError("aiTexture::mWidth is zero (aiTexture::mHeight is %i, uncompressed texture)",
+        			pTexture->mHeight);
+        }
+    }
+    else
+    {
+        if (!pTexture->mWidth) {
+            ReportError("aiTexture::mWidth is zero (compressed texture)");
+        }
+        if ('\0' != pTexture->achFormatHint[3]) {
+            ReportWarning("aiTexture::achFormatHint must be zero-terminated");
+        }
+        else if ('.'  == pTexture->achFormatHint[0])    {
+            ReportWarning("aiTexture::achFormatHint should contain a file extension "
+                "without a leading dot (format hint: %s).",pTexture->achFormatHint);
+        }
+    }
+
+    const char* sz = pTexture->achFormatHint;
+    if ((sz[0] >= 'A' && sz[0] <= 'Z') ||
+        (sz[1] >= 'A' && sz[1] <= 'Z') ||
+        (sz[2] >= 'A' && sz[2] <= 'Z') ||
+        (sz[3] >= 'A' && sz[3] <= 'Z')) {
+        ReportError("aiTexture::achFormatHint contains non-lowercase letters");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiAnimation* pAnimation,
+     const aiNodeAnim* pNodeAnim)
+{
+    Validate(&pNodeAnim->mNodeName);
+
+    if (!pNodeAnim->mNumPositionKeys && !pNodeAnim->mScalingKeys && !pNodeAnim->mNumRotationKeys) {
+        ReportError("Empty node animation channel");
+    }
+    // otherwise check whether one of the keys exceeds the total duration of the animation
+    if (pNodeAnim->mNumPositionKeys)
+    {
+        if (!pNodeAnim->mPositionKeys)
+        {
+        	ReportError("aiNodeAnim::mPositionKeys is NULL (aiNodeAnim::mNumPositionKeys is %i)",
+                pNodeAnim->mNumPositionKeys);
+        }
+        double dLast = -10e10;
+        for (unsigned int i = 0; i < pNodeAnim->mNumPositionKeys;++i)
+        {
+            // ScenePreprocessor will compute the duration if still the default value
+            // (Aramis) Add small epsilon, comparison tended to fail if max_time == duration,
+            //  seems to be due the compilers register usage/width.
+            if (pAnimation->mDuration > 0. && pNodeAnim->mPositionKeys[i].mTime > pAnimation->mDuration+0.001)
+            {
+                ReportError("aiNodeAnim::mPositionKeys[%i].mTime (%.5f) is larger "
+                    "than aiAnimation::mDuration (which is %.5f)",i,
+                    (float)pNodeAnim->mPositionKeys[i].mTime,
+                    (float)pAnimation->mDuration);
+            }
+            if (i && pNodeAnim->mPositionKeys[i].mTime <= dLast)
+            {
+                ReportWarning("aiNodeAnim::mPositionKeys[%i].mTime (%.5f) is smaller "
+                    "than aiAnimation::mPositionKeys[%i] (which is %.5f)",i,
+                    (float)pNodeAnim->mPositionKeys[i].mTime,
+                    i-1, (float)dLast);
+            }
+            dLast = pNodeAnim->mPositionKeys[i].mTime;
+        }
+    }
+    // rotation keys
+    if (pNodeAnim->mNumRotationKeys)
+    {
+        if (!pNodeAnim->mRotationKeys)
+        {
+            ReportError("aiNodeAnim::mRotationKeys is NULL (aiNodeAnim::mNumRotationKeys is %i)",
+                pNodeAnim->mNumRotationKeys);
+        }
+        double dLast = -10e10;
+        for (unsigned int i = 0; i < pNodeAnim->mNumRotationKeys;++i)
+        {
+            if (pAnimation->mDuration > 0. && pNodeAnim->mRotationKeys[i].mTime > pAnimation->mDuration+0.001)
+            {
+                ReportError("aiNodeAnim::mRotationKeys[%i].mTime (%.5f) is larger "
+                    "than aiAnimation::mDuration (which is %.5f)",i,
+                    (float)pNodeAnim->mRotationKeys[i].mTime,
+                    (float)pAnimation->mDuration);
+            }
+            if (i && pNodeAnim->mRotationKeys[i].mTime <= dLast)
+            {
+                ReportWarning("aiNodeAnim::mRotationKeys[%i].mTime (%.5f) is smaller "
+                    "than aiAnimation::mRotationKeys[%i] (which is %.5f)",i,
+                    (float)pNodeAnim->mRotationKeys[i].mTime,
+                    i-1, (float)dLast);
+            }
+            dLast = pNodeAnim->mRotationKeys[i].mTime;
+        }
+    }
+    // scaling keys
+    if (pNodeAnim->mNumScalingKeys)
+    {
+        if (!pNodeAnim->mScalingKeys)   {
+            ReportError("aiNodeAnim::mScalingKeys is NULL (aiNodeAnim::mNumScalingKeys is %i)",
+                pNodeAnim->mNumScalingKeys);
+        }
+        double dLast = -10e10;
+        for (unsigned int i = 0; i < pNodeAnim->mNumScalingKeys;++i)
+        {
+            if (pAnimation->mDuration > 0. && pNodeAnim->mScalingKeys[i].mTime > pAnimation->mDuration+0.001)
+            {
+                ReportError("aiNodeAnim::mScalingKeys[%i].mTime (%.5f) is larger "
+                    "than aiAnimation::mDuration (which is %.5f)",i,
+                    (float)pNodeAnim->mScalingKeys[i].mTime,
+                    (float)pAnimation->mDuration);
+            }
+            if (i && pNodeAnim->mScalingKeys[i].mTime <= dLast)
+            {
+                ReportWarning("aiNodeAnim::mScalingKeys[%i].mTime (%.5f) is smaller "
+                    "than aiAnimation::mScalingKeys[%i] (which is %.5f)",i,
+                    (float)pNodeAnim->mScalingKeys[i].mTime,
+                    i-1, (float)dLast);
+            }
+            dLast = pNodeAnim->mScalingKeys[i].mTime;
+        }
+    }
+
+    if (!pNodeAnim->mNumScalingKeys && !pNodeAnim->mNumRotationKeys &&
+        !pNodeAnim->mNumPositionKeys)
+    {
+        ReportError("A node animation channel must have at least one subtrack");
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiNode* pNode)
+{
+    if (!pNode) {
+    	ReportError("A node of the scenegraph is NULL");
+    }
+    // Validate node name string first so that it's safe to use in below expressions
+    this->Validate(&pNode->mName);
+    const char* nodeName = (&pNode->mName)->C_Str();
+    if (pNode != mScene->mRootNode && !pNode->mParent){
+        ReportError("Non-root node %s lacks a valid parent (aiNode::mParent is NULL) ", nodeName);
+    }
+
+    // validate all meshes
+    if (pNode->mNumMeshes)
+    {
+        if (!pNode->mMeshes)
+        {
+            ReportError("aiNode::mMeshes is NULL for node %s (aiNode::mNumMeshes is %i)",
+            		  nodeName, pNode->mNumMeshes);
+        }
+        std::vector<bool> abHadMesh;
+        abHadMesh.resize(mScene->mNumMeshes,false);
+        for (unsigned int i = 0; i < pNode->mNumMeshes;++i)
+        {
+            if (pNode->mMeshes[i] >= mScene->mNumMeshes)
+            {
+                ReportError("aiNode::mMeshes[%i] is out of range for node %s (maximum is %i)",
+                    pNode->mMeshes[i], nodeName, mScene->mNumMeshes-1);
+            }
+            if (abHadMesh[pNode->mMeshes[i]])
+            {
+                ReportError("aiNode::mMeshes[%i] is already referenced by this node %s (value: %i)",
+                    i, nodeName, pNode->mMeshes[i]);
+            }
+            abHadMesh[pNode->mMeshes[i]] = true;
+        }
+    }
+    if (pNode->mNumChildren)
+    {
+        if (!pNode->mChildren)  {
+            ReportError("aiNode::mChildren is NULL for node %s (aiNode::mNumChildren is %i)",
+            		nodeName, pNode->mNumChildren);
+        }
+        for (unsigned int i = 0; i < pNode->mNumChildren;++i)   {
+            Validate(pNode->mChildren[i]);
+        }
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void ValidateDSProcess::Validate( const aiString* pString)
+{
+    if (pString->length > MAXLEN)
+    {
+        ReportError("aiString::length is too large (%lu, maximum is %lu)",
+            pString->length,MAXLEN);
+    }
+    const char* sz = pString->data;
+    while (true)
+    {
+        if ('\0' == *sz)
+        {
+            if (pString->length != (unsigned int)(sz-pString->data)) {
+                ReportError("aiString::data is invalid: the terminal zero is at a wrong offset");
+            }
+            break;
+        }
+        else if (sz >= &pString->data[MAXLEN]) {
+            ReportError("aiString::data is invalid. There is no terminal character");
+        }
+        ++sz;
+    }
+}
diff --git a/thirdparty/assimp/code/ValidateDataStructure.h b/thirdparty/assimp/code/ValidateDataStructure.h
new file mode 100644
index 0000000000..bd21e88545
--- /dev/null
+++ b/thirdparty/assimp/code/ValidateDataStructure.h
@@ -0,0 +1,188 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a (dummy) post processing step to validate the loader's
+ * output data structure (for debugging)
+ */
+#ifndef AI_VALIDATEPROCESS_H_INC
+#define AI_VALIDATEPROCESS_H_INC
+
+#include <assimp/types.h>
+#include <assimp/material.h>
+#include "BaseProcess.h"
+
+struct aiBone;
+struct aiMesh;
+struct aiAnimation;
+struct aiNodeAnim;
+struct aiTexture;
+struct aiMaterial;
+struct aiNode;
+struct aiString;
+struct aiCamera;
+struct aiLight;
+
+namespace Assimp    {
+
+// --------------------------------------------------------------------------------------
+/** Validates the whole ASSIMP scene data structure for correctness.
+ *  ImportErrorException is thrown of the scene is corrupt.*/
+// --------------------------------------------------------------------------------------
+class ValidateDSProcess : public BaseProcess
+{
+public:
+
+    ValidateDSProcess();
+    ~ValidateDSProcess();
+
+public:
+    // -------------------------------------------------------------------
+    bool IsActive( unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    void Execute( aiScene* pScene);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Report a validation error. This will throw an exception,
+     *  control won't return.
+     * @param msg Format string for sprintf().*/
+    AI_WONT_RETURN void ReportError(const char* msg,...) AI_WONT_RETURN_SUFFIX;
+
+
+    // -------------------------------------------------------------------
+    /** Report a validation warning. This won't throw an exception,
+     *  control will return to the caller.
+     * @param msg Format string for sprintf().*/
+    void ReportWarning(const char* msg,...);
+
+
+    // -------------------------------------------------------------------
+    /** Validates a mesh
+     * @param pMesh Input mesh*/
+    void Validate( const aiMesh* pMesh);
+
+    // -------------------------------------------------------------------
+    /** Validates a bone
+     * @param pMesh Input mesh
+     * @param pBone Input bone*/
+    void Validate( const aiMesh* pMesh,const aiBone* pBone,float* afSum);
+
+    // -------------------------------------------------------------------
+    /** Validates an animation
+     * @param pAnimation Input animation*/
+    void Validate( const aiAnimation* pAnimation);
+
+    // -------------------------------------------------------------------
+    /** Validates a material
+     * @param pMaterial Input material*/
+    void Validate( const aiMaterial* pMaterial);
+
+    // -------------------------------------------------------------------
+    /** Search the material data structure for invalid or corrupt
+     *  texture keys.
+     * @param pMaterial Input material
+     * @param type Type of the texture*/
+    void SearchForInvalidTextures(const aiMaterial* pMaterial,
+        aiTextureType type);
+
+    // -------------------------------------------------------------------
+    /** Validates a texture
+     * @param pTexture Input texture*/
+    void Validate( const aiTexture* pTexture);
+
+    // -------------------------------------------------------------------
+    /** Validates a light source
+     * @param pLight Input light
+     */
+    void Validate( const aiLight* pLight);
+
+    // -------------------------------------------------------------------
+    /** Validates a camera
+     * @param pCamera Input camera*/
+    void Validate( const aiCamera* pCamera);
+
+    // -------------------------------------------------------------------
+    /** Validates a bone animation channel
+     * @param pAnimation Animation channel.
+     * @param pBoneAnim Input bone animation */
+    void Validate( const aiAnimation* pAnimation,
+        const aiNodeAnim* pBoneAnim);
+
+    // -------------------------------------------------------------------
+    /** Validates a node and all of its subnodes
+     * @param Node Input node*/
+    void Validate( const aiNode* pNode);
+
+    // -------------------------------------------------------------------
+    /** Validates a string
+     * @param pString Input string*/
+    void Validate( const aiString* pString);
+
+private:
+
+    // template to validate one of the aiScene::mXXX arrays
+    template <typename T>
+    inline void DoValidation(T** array, unsigned int size,
+        const char* firstName, const char* secondName);
+
+    // extended version: checks whether T::mName occurs twice
+    template <typename T>
+    inline void DoValidationEx(T** array, unsigned int size,
+        const char* firstName, const char* secondName);
+
+    // extension to the first template which does also search
+    // the nodegraph for an item with the same name
+    template <typename T>
+    inline void DoValidationWithNameCheck(T** array, unsigned int size,
+        const char* firstName, const char* secondName);
+
+    aiScene* mScene;
+};
+
+
+
+
+} // end of namespace Assimp
+
+#endif // AI_VALIDATEPROCESS_H_INC
diff --git a/thirdparty/assimp/code/Version.cpp b/thirdparty/assimp/code/Version.cpp
new file mode 100644
index 0000000000..0381037ff1
--- /dev/null
+++ b/thirdparty/assimp/code/Version.cpp
@@ -0,0 +1,185 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+// Actually just a dummy, used by the compiler to build the precompiled header.
+
+#include <assimp/version.h>
+#include <assimp/scene.h>
+#include "ScenePrivate.h"
+
+static const unsigned int MajorVersion = 4;
+static const unsigned int MinorVersion = 1;
+
+// --------------------------------------------------------------------------------
+// Legal information string - don't remove this.
+static const char* LEGAL_INFORMATION =
+
+"Open Asset Import Library (Assimp).\n"
+"A free C/C++ library to import various 3D file formats into applications\n\n"
+
+"(c) 2008-2017, assimp team\n"
+"License under the terms and conditions of the 3-clause BSD license\n"
+"http://assimp.sourceforge.net\n"
+;
+
+// ------------------------------------------------------------------------------------------------
+// Get legal string
+ASSIMP_API const char*  aiGetLegalString  ()    {
+    return LEGAL_INFORMATION;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get Assimp minor version
+ASSIMP_API unsigned int aiGetVersionMinor ()    {
+    return MinorVersion;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get Assimp major version
+ASSIMP_API unsigned int aiGetVersionMajor ()    {
+    return MajorVersion;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Get flags used for compilation
+ASSIMP_API unsigned int aiGetCompileFlags ()    {
+
+    unsigned int flags = 0;
+
+#ifdef ASSIMP_BUILD_BOOST_WORKAROUND
+    flags |= ASSIMP_CFLAGS_NOBOOST;
+#endif
+#ifdef ASSIMP_BUILD_SINGLETHREADED
+    flags |= ASSIMP_CFLAGS_SINGLETHREADED;
+#endif
+#ifdef ASSIMP_BUILD_DEBUG
+    flags |= ASSIMP_CFLAGS_DEBUG;
+#endif
+#ifdef ASSIMP_BUILD_DLL_EXPORT
+    flags |= ASSIMP_CFLAGS_SHARED;
+#endif
+#ifdef _STLPORT_VERSION
+    flags |= ASSIMP_CFLAGS_STLPORT;
+#endif
+
+    return flags;
+}
+
+// include current build revision, which is even updated from time to time -- :-)
+#include "revision.h"
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API unsigned int aiGetVersionRevision() {
+    return GitVersion;
+}
+
+ASSIMP_API const char *aiGetBranchName() {
+    return GitBranch;
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API aiScene::aiScene()
+: mFlags(0)
+, mRootNode(nullptr)
+, mNumMeshes(0)
+, mMeshes(nullptr)
+, mNumMaterials(0)
+, mMaterials(nullptr)
+, mNumAnimations(0)
+, mAnimations(nullptr)
+, mNumTextures(0)
+, mTextures(nullptr)
+, mNumLights(0)
+, mLights(nullptr)
+, mNumCameras(0)
+, mCameras(nullptr)
+, mMetaData(nullptr)
+, mPrivate(new Assimp::ScenePrivateData()) {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API aiScene::~aiScene() {
+    // delete all sub-objects recursively
+    delete mRootNode;
+
+    // To make sure we won't crash if the data is invalid it's
+    // much better to check whether both mNumXXX and mXXX are
+    // valid instead of relying on just one of them.
+    if (mNumMeshes && mMeshes)
+        for( unsigned int a = 0; a < mNumMeshes; a++)
+            delete mMeshes[a];
+    delete [] mMeshes;
+
+    if (mNumMaterials && mMaterials) {
+        for (unsigned int a = 0; a < mNumMaterials; ++a ) {
+            delete mMaterials[ a ];
+        }
+    }
+    delete [] mMaterials;
+
+    if (mNumAnimations && mAnimations)
+        for( unsigned int a = 0; a < mNumAnimations; a++)
+            delete mAnimations[a];
+    delete [] mAnimations;
+
+    if (mNumTextures && mTextures)
+        for( unsigned int a = 0; a < mNumTextures; a++)
+            delete mTextures[a];
+    delete [] mTextures;
+
+    if (mNumLights && mLights)
+        for( unsigned int a = 0; a < mNumLights; a++)
+            delete mLights[a];
+    delete [] mLights;
+
+    if (mNumCameras && mCameras)
+        for( unsigned int a = 0; a < mNumCameras; a++)
+            delete mCameras[a];
+    delete [] mCameras;
+
+    aiMetadata::Dealloc(mMetaData);
+    mMetaData = nullptr;
+
+    delete static_cast<Assimp::ScenePrivateData*>( mPrivate );
+}
+
diff --git a/thirdparty/assimp/code/VertexTriangleAdjacency.cpp b/thirdparty/assimp/code/VertexTriangleAdjacency.cpp
new file mode 100644
index 0000000000..7cfd1a3505
--- /dev/null
+++ b/thirdparty/assimp/code/VertexTriangleAdjacency.cpp
@@ -0,0 +1,134 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the VertexTriangleAdjacency helper class
+ */
+
+// internal headers
+#include "VertexTriangleAdjacency.h"
+#include <assimp/mesh.h>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+VertexTriangleAdjacency::VertexTriangleAdjacency(aiFace *pcFaces,
+    unsigned int iNumFaces,
+    unsigned int iNumVertices /*= 0*/,
+    bool bComputeNumTriangles /*= false*/)
+{
+    // compute the number of referenced vertices if it wasn't specified by the caller
+    const aiFace* const pcFaceEnd = pcFaces + iNumFaces;
+    if (!iNumVertices)  {
+        for (aiFace* pcFace = pcFaces; pcFace != pcFaceEnd; ++pcFace)   {
+            ai_assert( nullptr != pcFace );
+            ai_assert(3 == pcFace->mNumIndices);
+            iNumVertices = std::max(iNumVertices,pcFace->mIndices[0]);
+            iNumVertices = std::max(iNumVertices,pcFace->mIndices[1]);
+            iNumVertices = std::max(iNumVertices,pcFace->mIndices[2]);
+        }
+    }
+
+    mNumVertices = iNumVertices;
+
+    unsigned int* pi;
+
+    // allocate storage
+    if (bComputeNumTriangles)   {
+        pi = mLiveTriangles = new unsigned int[iNumVertices+1];
+        ::memset(mLiveTriangles,0,sizeof(unsigned int)*(iNumVertices+1));
+        mOffsetTable = new unsigned int[iNumVertices+2]+1;
+    } else {
+        pi = mOffsetTable = new unsigned int[iNumVertices+2]+1;
+        ::memset(mOffsetTable,0,sizeof(unsigned int)*(iNumVertices+1));
+        mLiveTriangles = NULL; // important, otherwise the d'tor would crash
+    }
+
+    // get a pointer to the end of the buffer
+    unsigned int* piEnd = pi+iNumVertices;
+    *piEnd++ = 0u;
+
+    // first pass: compute the number of faces referencing each vertex
+    for (aiFace* pcFace = pcFaces; pcFace != pcFaceEnd; ++pcFace)
+    {
+        unsigned nind = pcFace->mNumIndices;
+        unsigned * ind = pcFace->mIndices;
+        if (nind > 0) pi[ind[0]]++;
+        if (nind > 1) pi[ind[1]]++;
+        if (nind > 2) pi[ind[2]]++;
+    }
+
+    // second pass: compute the final offset table
+    unsigned int iSum = 0;
+    unsigned int* piCurOut = this->mOffsetTable;
+    for (unsigned int* piCur = pi; piCur != piEnd;++piCur,++piCurOut)   {
+
+        unsigned int iLastSum = iSum;
+        iSum += *piCur;
+        *piCurOut = iLastSum;
+    }
+    pi = this->mOffsetTable;
+
+    // third pass: compute the final table
+    this->mAdjacencyTable = new unsigned int[iSum];
+    iSum = 0;
+    for (aiFace* pcFace = pcFaces; pcFace != pcFaceEnd; ++pcFace,++iSum)    {
+        unsigned nind = pcFace->mNumIndices;
+        unsigned * ind = pcFace->mIndices;
+
+        if (nind > 0) mAdjacencyTable[pi[ind[0]]++] = iSum;
+        if (nind > 1) mAdjacencyTable[pi[ind[1]]++] = iSum;
+        if (nind > 2) mAdjacencyTable[pi[ind[2]]++] = iSum;
+    }
+    // fourth pass: undo the offset computations made during the third pass
+    // We could do this in a separate buffer, but this would be TIMES slower.
+    --mOffsetTable;
+    *mOffsetTable = 0u;
+}
+// ------------------------------------------------------------------------------------------------
+VertexTriangleAdjacency::~VertexTriangleAdjacency()
+{
+    // delete allocated storage
+    delete[] mOffsetTable;
+    delete[] mAdjacencyTable;
+    delete[] mLiveTriangles;
+}
diff --git a/thirdparty/assimp/code/VertexTriangleAdjacency.h b/thirdparty/assimp/code/VertexTriangleAdjacency.h
new file mode 100644
index 0000000000..f3be47612d
--- /dev/null
+++ b/thirdparty/assimp/code/VertexTriangleAdjacency.h
@@ -0,0 +1,117 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a helper class to compute a vertex-triangle adjacency map */
+#ifndef AI_VTADJACENCY_H_INC
+#define AI_VTADJACENCY_H_INC
+
+#include "BaseProcess.h"
+#include <assimp/types.h>
+#include <assimp/ai_assert.h>
+
+struct aiMesh;
+struct aiFace;
+
+namespace Assimp    {
+
+// --------------------------------------------------------------------------------------------
+/** @brief The VertexTriangleAdjacency class computes a vertex-triangle
+ *  adjacency map from a given index buffer.
+ *
+ *  @note Although it is called #VertexTriangleAdjacency, the current version does also
+ *    support arbitrary polygons. */
+// --------------------------------------------------------------------------------------------
+class ASSIMP_API VertexTriangleAdjacency {
+public:
+    // ----------------------------------------------------------------------------
+    /** @brief Construction from an existing index buffer
+     *  @param pcFaces Index buffer
+     *  @param iNumFaces Number of faces in the buffer
+     *  @param iNumVertices Number of referenced vertices. This value
+     *    is computed automatically if 0 is specified.
+     *  @param bComputeNumTriangles If you want the class to compute
+     *    a list containing the number of referenced triangles per vertex
+     *    per vertex - pass true.  */
+    VertexTriangleAdjacency(aiFace* pcFaces,unsigned int iNumFaces,
+        unsigned int iNumVertices = 0,
+        bool bComputeNumTriangles = true);
+
+    // ----------------------------------------------------------------------------
+    /** @brief Destructor */
+    ~VertexTriangleAdjacency();
+
+    // ----------------------------------------------------------------------------
+    /** @brief Get all triangles adjacent to a vertex
+     *  @param iVertIndex Index of the vertex
+     *  @return A pointer to the adjacency list. */
+    unsigned int* GetAdjacentTriangles(unsigned int iVertIndex) const {
+        ai_assert(iVertIndex < mNumVertices);
+        return &mAdjacencyTable[ mOffsetTable[iVertIndex]];
+    }
+
+    // ----------------------------------------------------------------------------
+    /** @brief Get the number of triangles that are referenced by
+     *    a vertex. This function returns a reference that can be modified
+     *  @param iVertIndex Index of the vertex
+     *  @return Number of referenced triangles */
+    unsigned int& GetNumTrianglesPtr(unsigned int iVertIndex) {
+        ai_assert( iVertIndex < mNumVertices );
+        ai_assert( nullptr != mLiveTriangles );
+        return mLiveTriangles[iVertIndex];
+    }
+
+    //! Offset table
+    unsigned int* mOffsetTable;
+
+    //! Adjacency table
+    unsigned int* mAdjacencyTable;
+
+    //! Table containing the number of referenced triangles per vertex
+    unsigned int* mLiveTriangles;
+
+    //! Debug: Number of referenced vertices
+    unsigned int mNumVertices;
+};
+
+} //! ns Assimp
+
+#endif // !! AI_VTADJACENCY_H_INC
diff --git a/thirdparty/assimp/code/Win32DebugLogStream.h b/thirdparty/assimp/code/Win32DebugLogStream.h
new file mode 100644
index 0000000000..a6063a261e
--- /dev/null
+++ b/thirdparty/assimp/code/Win32DebugLogStream.h
@@ -0,0 +1,95 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  Win32DebugLogStream.h
+*  @brief Implementation of Win32DebugLogStream
+*/
+#ifndef AI_WIN32DEBUGLOGSTREAM_H_INC
+#define AI_WIN32DEBUGLOGSTREAM_H_INC
+
+#ifdef _WIN32
+
+#include <assimp/LogStream.hpp>
+#include "windows.h"
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** @class  Win32DebugLogStream
+ *  @brief  Logs into the debug stream from win32.
+ */
+class Win32DebugLogStream : public LogStream {
+public:
+    /** @brief  Default constructor */
+    Win32DebugLogStream();
+
+    /** @brief  Destructor  */
+    ~Win32DebugLogStream();
+
+    /** @brief  Writer  */
+    void write(const char* messgae);
+};
+
+// ---------------------------------------------------------------------------
+inline 
+Win32DebugLogStream::Win32DebugLogStream(){ 
+    // empty
+}
+
+// ---------------------------------------------------------------------------
+inline 
+Win32DebugLogStream::~Win32DebugLogStream(){
+    // empty
+}
+
+// ---------------------------------------------------------------------------
+inline 
+void Win32DebugLogStream::write(const char* message) {
+    ::OutputDebugStringA( message);
+}
+
+// ---------------------------------------------------------------------------
+}   // Namespace Assimp
+
+#endif // ! _WIN32
+#endif // guard
diff --git a/thirdparty/assimp/code/res/resource.h b/thirdparty/assimp/code/res/resource.h
new file mode 100644
index 0000000000..37d39284fe
--- /dev/null
+++ b/thirdparty/assimp/code/res/resource.h
@@ -0,0 +1,14 @@
+//{{NO_DEPENDENCIES}}
+// Microsoft Visual C++ generated include file.
+// Used by assimp.rc
+
+// Nächste Standardwerte für neue Objekte
+// 
+#ifdef APSTUDIO_INVOKED
+#ifndef APSTUDIO_READONLY_SYMBOLS
+#define _APS_NEXT_RESOURCE_VALUE        101
+#define _APS_NEXT_COMMAND_VALUE         40001
+#define _APS_NEXT_CONTROL_VALUE         1001
+#define _APS_NEXT_SYMED_VALUE           101
+#endif
+#endif
diff --git a/thirdparty/assimp/code/revision.h b/thirdparty/assimp/code/revision.h
new file mode 100644
index 0000000000..88872aef22
--- /dev/null
+++ b/thirdparty/assimp/code/revision.h
@@ -0,0 +1,7 @@
+#ifndef ASSIMP_REVISION_H_INC
+#define ASSIMP_REVISION_H_INC
+
+#define GitVersion 0x00000000
+#define GitBranch "master"
+
+#endif // ASSIMP_REVISION_H_INC
diff --git a/thirdparty/assimp/code/scene.cpp b/thirdparty/assimp/code/scene.cpp
new file mode 100644
index 0000000000..2acb348d81
--- /dev/null
+++ b/thirdparty/assimp/code/scene.cpp
@@ -0,0 +1,140 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include <assimp/scene.h>
+
+aiNode::aiNode()
+: mName("")
+, mParent(NULL)
+, mNumChildren(0)
+, mChildren(NULL)
+, mNumMeshes(0)
+, mMeshes(NULL)
+, mMetaData(NULL) {
+    // empty
+}
+
+aiNode::aiNode(const std::string& name)
+: mName(name)
+, mParent(NULL)
+, mNumChildren(0)
+, mChildren(NULL)
+, mNumMeshes(0)
+, mMeshes(NULL)
+, mMetaData(NULL) {
+    // empty
+}
+
+/** Destructor */
+aiNode::~aiNode() {
+    // delete all children recursively
+    // to make sure we won't crash if the data is invalid ...
+    if (mChildren && mNumChildren)
+    {
+        for (unsigned int a = 0; a < mNumChildren; a++)
+            delete mChildren[a];
+    }
+    delete[] mChildren;
+    delete[] mMeshes;
+    delete mMetaData;
+}
+
+const aiNode *aiNode::FindNode(const char* name) const {
+    if (nullptr == name) {
+        return nullptr;
+    }
+    if (!::strcmp(mName.data, name)) {
+        return this;
+    }
+    for (unsigned int i = 0; i < mNumChildren; ++i) {
+        const aiNode* const p = mChildren[i]->FindNode(name);
+        if (p) {
+            return p;
+        }
+    }
+    // there is definitely no sub-node with this name
+    return nullptr;
+}
+
+aiNode *aiNode::FindNode(const char* name) {
+    if (!::strcmp(mName.data, name))return this;
+    for (unsigned int i = 0; i < mNumChildren; ++i)
+    {
+        aiNode* const p = mChildren[i]->FindNode(name);
+        if (p) {
+            return p;
+        }
+    }
+    // there is definitely no sub-node with this name
+    return nullptr;
+}
+
+void aiNode::addChildren(unsigned int numChildren, aiNode **children) {
+    if (nullptr == children || 0 == numChildren) {
+        return;
+    }
+
+    for (unsigned int i = 0; i < numChildren; i++) {
+        aiNode *child = children[i];
+        if (nullptr != child) {
+            child->mParent = this;
+        }
+    }
+
+    if (mNumChildren > 0) {
+        aiNode **tmp = new aiNode*[mNumChildren];
+        ::memcpy(tmp, mChildren, sizeof(aiNode*) * mNumChildren);
+        delete[] mChildren;
+        mChildren = new aiNode*[mNumChildren + numChildren];
+        ::memcpy(mChildren, tmp, sizeof(aiNode*) * mNumChildren);
+        ::memcpy(&mChildren[mNumChildren], children, sizeof(aiNode*)* numChildren);
+        mNumChildren += numChildren;
+        delete[] tmp;
+    }
+    else {
+        mChildren = new aiNode*[numChildren];
+        for (unsigned int i = 0; i < numChildren; i++) {
+            mChildren[i] = children[i];
+        }
+        mNumChildren = numChildren;
+    }
+}
diff --git a/thirdparty/assimp/code/simd.cpp b/thirdparty/assimp/code/simd.cpp
new file mode 100644
index 0000000000..04615f408e
--- /dev/null
+++ b/thirdparty/assimp/code/simd.cpp
@@ -0,0 +1,79 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "simd.h"
+
+namespace Assimp {
+
+bool CPUSupportsSSE2() {
+#if defined(__x86_64__) || defined(_M_X64)
+    //* x86_64 always has SSE2 instructions */
+    return true;
+#elif defined(__GNUC__) && defined(i386)
+    // for GCC x86 we check cpuid
+    unsigned int d;
+    __asm__(
+        "pushl %%ebx\n\t"
+        "cpuid\n\t"
+        "popl %%ebx\n\t"
+        : "=d" ( d )
+        :"a" ( 1 ) );
+    return ( d & 0x04000000 ) != 0;
+#elif (defined(_MSC_VER) && defined(_M_IX86))
+    // also check cpuid for MSVC x86
+    unsigned int d;
+    __asm {
+        xor     eax, eax
+        inc eax
+        push ebx
+        cpuid
+        pop ebx
+        mov d, edx
+    }
+    return ( d & 0x04000000 ) != 0;
+#else
+    return false;
+#endif
+}
+
+
+} // Namespace Assimp
diff --git a/thirdparty/assimp/code/simd.h b/thirdparty/assimp/code/simd.h
new file mode 100644
index 0000000000..3eecdd4581
--- /dev/null
+++ b/thirdparty/assimp/code/simd.h
@@ -0,0 +1,53 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#pragma once
+
+#include <assimp/defs.h>
+
+namespace Assimp {
+
+/// @brief  Checks if the platform supports SSE2 optimization
+/// @return true, if SSE2 is supported. false if SSE2 is not supported.
+bool ASSIMP_API CPUSupportsSSE2();
+
+} // Namespace Assimp
diff --git a/thirdparty/assimp/contrib/utf8cpp/source/utf8.h b/thirdparty/assimp/contrib/utf8cpp/source/utf8.h
new file mode 100644
index 0000000000..82b13f59f9
--- /dev/null
+++ b/thirdparty/assimp/contrib/utf8cpp/source/utf8.h
@@ -0,0 +1,34 @@
+// Copyright 2006 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
+#define UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
+
+#include "utf8/checked.h"
+#include "utf8/unchecked.h"
+
+#endif // header guard
diff --git a/thirdparty/assimp/contrib/utf8cpp/source/utf8/checked.h b/thirdparty/assimp/contrib/utf8cpp/source/utf8/checked.h
new file mode 100644
index 0000000000..1331155138
--- /dev/null
+++ b/thirdparty/assimp/contrib/utf8cpp/source/utf8/checked.h
@@ -0,0 +1,327 @@
+// Copyright 2006 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_CHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
+#define UTF8_FOR_CPP_CHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
+
+#include "core.h"
+#include <stdexcept>
+
+namespace utf8
+{
+    // Base for the exceptions that may be thrown from the library
+    class exception : public ::std::exception {
+    };
+
+    // Exceptions that may be thrown from the library functions.
+    class invalid_code_point : public exception {
+        uint32_t cp;
+    public:
+        invalid_code_point(uint32_t cp) : cp(cp) {}
+        virtual const char* what() const throw() { return "Invalid code point"; }
+        uint32_t code_point() const {return cp;}
+    };
+
+    class invalid_utf8 : public exception {
+        uint8_t u8;
+    public:
+        invalid_utf8 (uint8_t u) : u8(u) {}
+        virtual const char* what() const throw() { return "Invalid UTF-8"; }
+        uint8_t utf8_octet() const {return u8;}
+    };
+
+    class invalid_utf16 : public exception {
+        uint16_t u16;
+    public:
+        invalid_utf16 (uint16_t u) : u16(u) {}
+        virtual const char* what() const throw() { return "Invalid UTF-16"; }
+        uint16_t utf16_word() const {return u16;}
+    };
+
+    class not_enough_room : public exception {
+    public:
+        virtual const char* what() const throw() { return "Not enough space"; }
+    };
+
+    /// The library API - functions intended to be called by the users
+
+    template <typename octet_iterator>
+    octet_iterator append(uint32_t cp, octet_iterator result)
+    {
+        if (!utf8::internal::is_code_point_valid(cp))
+            throw invalid_code_point(cp);
+
+        if (cp < 0x80)                        // one octet
+            *(result++) = static_cast<uint8_t>(cp);
+        else if (cp < 0x800) {                // two octets
+            *(result++) = static_cast<uint8_t>((cp >> 6)            | 0xc0);
+            *(result++) = static_cast<uint8_t>((cp & 0x3f)          | 0x80);
+        }
+        else if (cp < 0x10000) {              // three octets
+            *(result++) = static_cast<uint8_t>((cp >> 12)           | 0xe0);
+            *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f)   | 0x80);
+            *(result++) = static_cast<uint8_t>((cp & 0x3f)          | 0x80);
+        }
+        else {                                // four octets
+            *(result++) = static_cast<uint8_t>((cp >> 18)           | 0xf0);
+            *(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f)  | 0x80);
+            *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f)   | 0x80);
+            *(result++) = static_cast<uint8_t>((cp & 0x3f)          | 0x80);
+        }
+        return result;
+    }
+
+    template <typename octet_iterator, typename output_iterator>
+    output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out, uint32_t replacement)
+    {
+        while (start != end) {
+            octet_iterator sequence_start = start;
+            internal::utf_error err_code = utf8::internal::validate_next(start, end);
+            switch (err_code) {
+                case internal::UTF8_OK :
+                    for (octet_iterator it = sequence_start; it != start; ++it)
+                        *out++ = *it;
+                    break;
+                case internal::NOT_ENOUGH_ROOM:
+                    throw not_enough_room();
+                case internal::INVALID_LEAD:
+                    out = utf8::append (replacement, out);
+                    ++start;
+                    break;
+                case internal::INCOMPLETE_SEQUENCE:
+                case internal::OVERLONG_SEQUENCE:
+                case internal::INVALID_CODE_POINT:
+                    out = utf8::append (replacement, out);
+                    ++start;
+                    // just one replacement mark for the sequence
+                    while (start != end && utf8::internal::is_trail(*start))
+                        ++start;
+                    break;
+            }
+        }
+        return out;
+    }
+
+    template <typename octet_iterator, typename output_iterator>
+    inline output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out)
+    {
+        static const uint32_t replacement_marker = utf8::internal::mask16(0xfffd);
+        return utf8::replace_invalid(start, end, out, replacement_marker);
+    }
+
+    template <typename octet_iterator>
+    uint32_t next(octet_iterator& it, octet_iterator end)
+    {
+        uint32_t cp = 0;
+        internal::utf_error err_code = utf8::internal::validate_next(it, end, cp);
+        switch (err_code) {
+            case internal::UTF8_OK :
+                break;
+            case internal::NOT_ENOUGH_ROOM :
+                throw not_enough_room();
+            case internal::INVALID_LEAD :
+            case internal::INCOMPLETE_SEQUENCE :
+            case internal::OVERLONG_SEQUENCE :
+                throw invalid_utf8(*it);
+            case internal::INVALID_CODE_POINT :
+                throw invalid_code_point(cp);
+        }
+        return cp;
+    }
+
+    template <typename octet_iterator>
+    uint32_t peek_next(octet_iterator it, octet_iterator end)
+    {
+        return utf8::next(it, end);
+    }
+
+    template <typename octet_iterator>
+    uint32_t prior(octet_iterator& it, octet_iterator start)
+    {
+        // can't do much if it == start
+        if (it == start)
+            throw not_enough_room();
+
+        octet_iterator end = it;
+        // Go back until we hit either a lead octet or start
+        while (utf8::internal::is_trail(*(--it)))
+            if (it == start)
+                throw invalid_utf8(*it); // error - no lead byte in the sequence
+        return utf8::peek_next(it, end);
+    }
+
+    /// Deprecated in versions that include "prior"
+    template <typename octet_iterator>
+    uint32_t previous(octet_iterator& it, octet_iterator pass_start)
+    {
+        octet_iterator end = it;
+        while (utf8::internal::is_trail(*(--it)))
+            if (it == pass_start)
+                throw invalid_utf8(*it); // error - no lead byte in the sequence
+        octet_iterator temp = it;
+        return utf8::next(temp, end);
+    }
+
+    template <typename octet_iterator, typename distance_type>
+    void advance (octet_iterator& it, distance_type n, octet_iterator end)
+    {
+        for (distance_type i = 0; i < n; ++i)
+            utf8::next(it, end);
+    }
+
+    template <typename octet_iterator>
+    typename std::iterator_traits<octet_iterator>::difference_type
+    distance (octet_iterator first, octet_iterator last)
+    {
+        typename std::iterator_traits<octet_iterator>::difference_type dist;
+        for (dist = 0; first < last; ++dist)
+            utf8::next(first, last);
+        return dist;
+    }
+
+    template <typename u16bit_iterator, typename octet_iterator>
+    octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
+    {
+        while (start != end) {
+            uint32_t cp = utf8::internal::mask16(*start++);
+            // Take care of surrogate pairs first
+            if (utf8::internal::is_lead_surrogate(cp)) {
+                if (start != end) {
+                    uint32_t trail_surrogate = utf8::internal::mask16(*start++);
+                    if (utf8::internal::is_trail_surrogate(trail_surrogate))
+                        cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
+                    else
+                        throw invalid_utf16(static_cast<uint16_t>(trail_surrogate));
+                }
+                else
+                    throw invalid_utf16(static_cast<uint16_t>(cp));
+
+            }
+            // Lone trail surrogate
+            else if (utf8::internal::is_trail_surrogate(cp))
+                throw invalid_utf16(static_cast<uint16_t>(cp));
+
+            result = utf8::append(cp, result);
+        }
+        return result;
+    }
+
+    template <typename u16bit_iterator, typename octet_iterator>
+    u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
+    {
+        while (start != end) {
+            uint32_t cp = utf8::next(start, end);
+            if (cp > 0xffff) { //make a surrogate pair
+                *result++ = static_cast<uint16_t>((cp >> 10)   + internal::LEAD_OFFSET);
+                *result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
+            }
+            else
+                *result++ = static_cast<uint16_t>(cp);
+        }
+        return result;
+    }
+
+    template <typename octet_iterator, typename u32bit_iterator>
+    octet_iterator utf32to8 (u32bit_iterator start, u32bit_iterator end, octet_iterator result)
+    {
+        while (start != end)
+            result = utf8::append(*(start++), result);
+
+        return result;
+    }
+
+    template <typename octet_iterator, typename u32bit_iterator>
+    u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
+    {
+        while (start != end)
+            (*result++) = utf8::next(start, end);
+
+        return result;
+    }
+
+    // The iterator class
+    template <typename octet_iterator>
+    class iterator : public std::iterator <std::bidirectional_iterator_tag, uint32_t> {
+      octet_iterator it;
+      octet_iterator range_start;
+      octet_iterator range_end;
+      public:
+      iterator () {}
+      explicit iterator (const octet_iterator& octet_it,
+                         const octet_iterator& range_start,
+                         const octet_iterator& range_end) :
+               it(octet_it), range_start(range_start), range_end(range_end)
+      {
+          if (it < range_start || it > range_end)
+              throw std::out_of_range("Invalid utf-8 iterator position");
+      }
+      // the default "big three" are OK
+      octet_iterator base () const { return it; }
+      uint32_t operator * () const
+      {
+          octet_iterator temp = it;
+          return utf8::next(temp, range_end);
+      }
+      bool operator == (const iterator& rhs) const
+      {
+          if (range_start != rhs.range_start || range_end != rhs.range_end)
+              throw std::logic_error("Comparing utf-8 iterators defined with different ranges");
+          return (it == rhs.it);
+      }
+      bool operator != (const iterator& rhs) const
+      {
+          return !(operator == (rhs));
+      }
+      iterator& operator ++ ()
+      {
+          utf8::next(it, range_end);
+          return *this;
+      }
+      iterator operator ++ (int)
+      {
+          iterator temp = *this;
+          utf8::next(it, range_end);
+          return temp;
+      }
+      iterator& operator -- ()
+      {
+          utf8::prior(it, range_start);
+          return *this;
+      }
+      iterator operator -- (int)
+      {
+          iterator temp = *this;
+          utf8::prior(it, range_start);
+          return temp;
+      }
+    }; // class iterator
+
+} // namespace utf8
+
+#endif //header guard
+
+
diff --git a/thirdparty/assimp/contrib/utf8cpp/source/utf8/core.h b/thirdparty/assimp/contrib/utf8cpp/source/utf8/core.h
new file mode 100644
index 0000000000..693d388c07
--- /dev/null
+++ b/thirdparty/assimp/contrib/utf8cpp/source/utf8/core.h
@@ -0,0 +1,329 @@
+// Copyright 2006 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_CORE_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
+#define UTF8_FOR_CPP_CORE_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
+
+#include <iterator>
+
+namespace utf8
+{
+    // The typedefs for 8-bit, 16-bit and 32-bit unsigned integers
+    // You may need to change them to match your system.
+    // These typedefs have the same names as ones from cstdint, or boost/cstdint
+    typedef unsigned char   uint8_t;
+    typedef unsigned short  uint16_t;
+    typedef unsigned int    uint32_t;
+
+// Helper code - not intended to be directly called by the library users. May be changed at any time
+namespace internal
+{
+    // Unicode constants
+    // Leading (high) surrogates: 0xd800 - 0xdbff
+    // Trailing (low) surrogates: 0xdc00 - 0xdfff
+    const uint16_t LEAD_SURROGATE_MIN  = 0xd800u;
+    const uint16_t LEAD_SURROGATE_MAX  = 0xdbffu;
+    const uint16_t TRAIL_SURROGATE_MIN = 0xdc00u;
+    const uint16_t TRAIL_SURROGATE_MAX = 0xdfffu;
+    const uint16_t LEAD_OFFSET         = LEAD_SURROGATE_MIN - (0x10000 >> 10);
+    const uint32_t SURROGATE_OFFSET    = 0x10000u - (LEAD_SURROGATE_MIN << 10) - TRAIL_SURROGATE_MIN;
+
+    // Maximum valid value for a Unicode code point
+    const uint32_t CODE_POINT_MAX      = 0x0010ffffu;
+
+    template<typename octet_type>
+    inline uint8_t mask8(octet_type oc)
+    {
+        return static_cast<uint8_t>(0xff & oc);
+    }
+    template<typename u16_type>
+    inline uint16_t mask16(u16_type oc)
+    {
+        return static_cast<uint16_t>(0xffff & oc);
+    }
+    template<typename octet_type>
+    inline bool is_trail(octet_type oc)
+    {
+        return ((utf8::internal::mask8(oc) >> 6) == 0x2);
+    }
+
+    template <typename u16>
+    inline bool is_lead_surrogate(u16 cp)
+    {
+        return (cp >= LEAD_SURROGATE_MIN && cp <= LEAD_SURROGATE_MAX);
+    }
+
+    template <typename u16>
+    inline bool is_trail_surrogate(u16 cp)
+    {
+        return (cp >= TRAIL_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
+    }
+
+    template <typename u16>
+    inline bool is_surrogate(u16 cp)
+    {
+        return (cp >= LEAD_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
+    }
+
+    template <typename u32>
+    inline bool is_code_point_valid(u32 cp)
+    {
+        return (cp <= CODE_POINT_MAX && !utf8::internal::is_surrogate(cp));
+    }
+
+    template <typename octet_iterator>
+    inline typename std::iterator_traits<octet_iterator>::difference_type
+    sequence_length(octet_iterator lead_it)
+    {
+        uint8_t lead = utf8::internal::mask8(*lead_it);
+        if (lead < 0x80)
+            return 1;
+        else if ((lead >> 5) == 0x6)
+            return 2;
+        else if ((lead >> 4) == 0xe)
+            return 3;
+        else if ((lead >> 3) == 0x1e)
+            return 4;
+        else
+            return 0;
+    }
+
+    template <typename octet_difference_type>
+    inline bool is_overlong_sequence(uint32_t cp, octet_difference_type length)
+    {
+        if (cp < 0x80) {
+            if (length != 1) 
+                return true;
+        }
+        else if (cp < 0x800) {
+            if (length != 2) 
+                return true;
+        }
+        else if (cp < 0x10000) {
+            if (length != 3) 
+                return true;
+        }
+
+        return false;
+    }
+
+    enum utf_error {UTF8_OK, NOT_ENOUGH_ROOM, INVALID_LEAD, INCOMPLETE_SEQUENCE, OVERLONG_SEQUENCE, INVALID_CODE_POINT};
+
+    /// Helper for get_sequence_x
+    template <typename octet_iterator>
+    utf_error increase_safely(octet_iterator& it, octet_iterator end)
+    {
+        if (++it == end)
+            return NOT_ENOUGH_ROOM;
+
+        if (!utf8::internal::is_trail(*it))
+            return INCOMPLETE_SEQUENCE;
+        
+        return UTF8_OK;
+    }
+
+    #define UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(IT, END) {utf_error ret = increase_safely(IT, END); if (ret != UTF8_OK) return ret;}    
+
+    /// get_sequence_x functions decode utf-8 sequences of the length x
+    template <typename octet_iterator>
+    utf_error get_sequence_1(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+    {
+        if (it == end)
+            return NOT_ENOUGH_ROOM;
+
+        code_point = utf8::internal::mask8(*it);
+
+        return UTF8_OK;
+    }
+
+    template <typename octet_iterator>
+    utf_error get_sequence_2(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+    {
+        if (it == end) 
+            return NOT_ENOUGH_ROOM;
+        
+        code_point = utf8::internal::mask8(*it);
+
+        UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
+
+        code_point = ((code_point << 6) & 0x7ff) + ((*it) & 0x3f);
+
+        return UTF8_OK;
+    }
+
+    template <typename octet_iterator>
+    utf_error get_sequence_3(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+    {
+        if (it == end)
+            return NOT_ENOUGH_ROOM;
+            
+        code_point = utf8::internal::mask8(*it);
+
+        UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
+
+        code_point = ((code_point << 12) & 0xffff) + ((utf8::internal::mask8(*it) << 6) & 0xfff);
+
+        UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
+
+        code_point += (*it) & 0x3f;
+
+        return UTF8_OK;
+    }
+
+    template <typename octet_iterator>
+    utf_error get_sequence_4(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+    {
+        if (it == end)
+           return NOT_ENOUGH_ROOM;
+
+        code_point = utf8::internal::mask8(*it);
+
+        UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
+
+        code_point = ((code_point << 18) & 0x1fffff) + ((utf8::internal::mask8(*it) << 12) & 0x3ffff);
+
+        UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
+
+        code_point += (utf8::internal::mask8(*it) << 6) & 0xfff;
+
+        UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
+
+        code_point += (*it) & 0x3f;
+
+        return UTF8_OK;
+    }
+
+    #undef UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR
+
+    template <typename octet_iterator>
+    utf_error validate_next(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+    {
+        // Save the original value of it so we can go back in case of failure
+        // Of course, it does not make much sense with i.e. stream iterators
+        octet_iterator original_it = it;
+
+        uint32_t cp = 0;
+        // Determine the sequence length based on the lead octet
+        typedef typename std::iterator_traits<octet_iterator>::difference_type octet_difference_type;
+        const octet_difference_type length = utf8::internal::sequence_length(it);
+
+        // Get trail octets and calculate the code point
+        utf_error err = UTF8_OK;
+        switch (length) {
+            case 0: 
+                return INVALID_LEAD;
+            case 1:
+                err = utf8::internal::get_sequence_1(it, end, cp);
+                break;
+            case 2:
+                err = utf8::internal::get_sequence_2(it, end, cp);
+            break;
+            case 3:
+                err = utf8::internal::get_sequence_3(it, end, cp);
+            break;
+            case 4:
+                err = utf8::internal::get_sequence_4(it, end, cp);
+            break;
+        }
+
+        if (err == UTF8_OK) {
+            // Decoding succeeded. Now, security checks...
+            if (utf8::internal::is_code_point_valid(cp)) {
+                if (!utf8::internal::is_overlong_sequence(cp, length)){
+                    // Passed! Return here.
+                    code_point = cp;
+                    ++it;
+                    return UTF8_OK;
+                }
+                else
+                    err = OVERLONG_SEQUENCE;
+            }
+            else 
+                err = INVALID_CODE_POINT;
+        }
+
+        // Failure branch - restore the original value of the iterator
+        it = original_it;
+        return err;
+    }
+
+    template <typename octet_iterator>
+    inline utf_error validate_next(octet_iterator& it, octet_iterator end) {
+        uint32_t ignored;
+        return utf8::internal::validate_next(it, end, ignored);
+    }
+
+} // namespace internal
+
+    /// The library API - functions intended to be called by the users
+
+    // Byte order mark
+    const uint8_t bom[] = {0xef, 0xbb, 0xbf};
+
+    template <typename octet_iterator>
+    octet_iterator find_invalid(octet_iterator start, octet_iterator end)
+    {
+        octet_iterator result = start;
+        while (result != end) {
+            utf8::internal::utf_error err_code = utf8::internal::validate_next(result, end);
+            if (err_code != internal::UTF8_OK)
+                return result;
+        }
+        return result;
+    }
+
+    template <typename octet_iterator>
+    inline bool is_valid(octet_iterator start, octet_iterator end)
+    {
+        return (utf8::find_invalid(start, end) == end);
+    }
+
+    template <typename octet_iterator>
+    inline bool starts_with_bom (octet_iterator it, octet_iterator end)
+    {
+        return (
+            ((it != end) && (utf8::internal::mask8(*it++)) == bom[0]) &&
+            ((it != end) && (utf8::internal::mask8(*it++)) == bom[1]) &&
+            ((it != end) && (utf8::internal::mask8(*it))   == bom[2])
+           );
+    }
+	
+    //Deprecated in release 2.3 
+    template <typename octet_iterator>
+    inline bool is_bom (octet_iterator it)
+    {
+        return (
+            (utf8::internal::mask8(*it++)) == bom[0] &&
+            (utf8::internal::mask8(*it++)) == bom[1] &&
+            (utf8::internal::mask8(*it))   == bom[2]
+           );
+    }
+} // namespace utf8
+
+#endif // header guard
+
+
diff --git a/thirdparty/assimp/contrib/utf8cpp/source/utf8/unchecked.h b/thirdparty/assimp/contrib/utf8cpp/source/utf8/unchecked.h
new file mode 100644
index 0000000000..cb2427166b
--- /dev/null
+++ b/thirdparty/assimp/contrib/utf8cpp/source/utf8/unchecked.h
@@ -0,0 +1,228 @@
+// Copyright 2006 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_UNCHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
+#define UTF8_FOR_CPP_UNCHECKED_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
+
+#include "core.h"
+
+namespace utf8
+{
+    namespace unchecked 
+    {
+        template <typename octet_iterator>
+        octet_iterator append(uint32_t cp, octet_iterator result)
+        {
+            if (cp < 0x80)                        // one octet
+                *(result++) = static_cast<uint8_t>(cp);  
+            else if (cp < 0x800) {                // two octets
+                *(result++) = static_cast<uint8_t>((cp >> 6)          | 0xc0);
+                *(result++) = static_cast<uint8_t>((cp & 0x3f)        | 0x80);
+            }
+            else if (cp < 0x10000) {              // three octets
+                *(result++) = static_cast<uint8_t>((cp >> 12)         | 0xe0);
+                *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
+                *(result++) = static_cast<uint8_t>((cp & 0x3f)        | 0x80);
+            }
+            else {                                // four octets
+                *(result++) = static_cast<uint8_t>((cp >> 18)         | 0xf0);
+                *(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f)| 0x80);
+                *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
+                *(result++) = static_cast<uint8_t>((cp & 0x3f)        | 0x80);
+            }
+            return result;
+        }
+
+        template <typename octet_iterator>
+        uint32_t next(octet_iterator& it)
+        {
+            uint32_t cp = utf8::internal::mask8(*it);
+            typename std::iterator_traits<octet_iterator>::difference_type length = utf8::internal::sequence_length(it);
+            switch (length) {
+                case 1:
+                    break;
+                case 2:
+                    it++;
+                    cp = ((cp << 6) & 0x7ff) + ((*it) & 0x3f);
+                    break;
+                case 3:
+                    ++it; 
+                    cp = ((cp << 12) & 0xffff) + ((utf8::internal::mask8(*it) << 6) & 0xfff);
+                    ++it;
+                    cp += (*it) & 0x3f;
+                    break;
+                case 4:
+                    ++it;
+                    cp = ((cp << 18) & 0x1fffff) + ((utf8::internal::mask8(*it) << 12) & 0x3ffff);                
+                    ++it;
+                    cp += (utf8::internal::mask8(*it) << 6) & 0xfff;
+                    ++it;
+                    cp += (*it) & 0x3f; 
+                    break;
+            }
+            ++it;
+            return cp;        
+        }
+
+        template <typename octet_iterator>
+        uint32_t peek_next(octet_iterator it)
+        {
+            return utf8::unchecked::next(it);    
+        }
+
+        template <typename octet_iterator>
+        uint32_t prior(octet_iterator& it)
+        {
+            while (utf8::internal::is_trail(*(--it))) ;
+            octet_iterator temp = it;
+            return utf8::unchecked::next(temp);
+        }
+
+        // Deprecated in versions that include prior, but only for the sake of consistency (see utf8::previous)
+        template <typename octet_iterator>
+        inline uint32_t previous(octet_iterator& it)
+        {
+            return utf8::unchecked::prior(it);
+        }
+
+        template <typename octet_iterator, typename distance_type>
+        void advance (octet_iterator& it, distance_type n)
+        {
+            for (distance_type i = 0; i < n; ++i)
+                utf8::unchecked::next(it);
+        }
+
+        template <typename octet_iterator>
+        typename std::iterator_traits<octet_iterator>::difference_type
+        distance (octet_iterator first, octet_iterator last)
+        {
+            typename std::iterator_traits<octet_iterator>::difference_type dist;
+            for (dist = 0; first < last; ++dist) 
+                utf8::unchecked::next(first);
+            return dist;
+        }
+
+        template <typename u16bit_iterator, typename octet_iterator>
+        octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
+        {       
+            while (start != end) {
+                uint32_t cp = utf8::internal::mask16(*start++);
+            // Take care of surrogate pairs first
+                if (utf8::internal::is_lead_surrogate(cp)) {
+                    uint32_t trail_surrogate = utf8::internal::mask16(*start++);
+                    cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
+                }
+                result = utf8::unchecked::append(cp, result);
+            }
+            return result;         
+        }
+
+        template <typename u16bit_iterator, typename octet_iterator>
+        u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
+        {
+            while (start < end) {
+                uint32_t cp = utf8::unchecked::next(start);
+                if (cp > 0xffff) { //make a surrogate pair
+                    *result++ = static_cast<uint16_t>((cp >> 10)   + internal::LEAD_OFFSET);
+                    *result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
+                }
+                else
+                    *result++ = static_cast<uint16_t>(cp);
+            }
+            return result;
+        }
+
+        template <typename octet_iterator, typename u32bit_iterator>
+        octet_iterator utf32to8 (u32bit_iterator start, u32bit_iterator end, octet_iterator result)
+        {
+            while (start != end)
+                result = utf8::unchecked::append(*(start++), result);
+
+            return result;
+        }
+
+        template <typename octet_iterator, typename u32bit_iterator>
+        u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
+        {
+            while (start < end)
+                (*result++) = utf8::unchecked::next(start);
+
+            return result;
+        }
+
+        // The iterator class
+        template <typename octet_iterator>
+          class iterator : public std::iterator <std::bidirectional_iterator_tag, uint32_t> { 
+            octet_iterator it;
+            public:
+            iterator () {}
+            explicit iterator (const octet_iterator& octet_it): it(octet_it) {}
+            // the default "big three" are OK
+            octet_iterator base () const { return it; }
+            uint32_t operator * () const
+            {
+                octet_iterator temp = it;
+                return utf8::unchecked::next(temp);
+            }
+            bool operator == (const iterator& rhs) const 
+            { 
+                return (it == rhs.it);
+            }
+            bool operator != (const iterator& rhs) const
+            {
+                return !(operator == (rhs));
+            }
+            iterator& operator ++ () 
+            {
+                ::std::advance(it, utf8::internal::sequence_length(it));
+                return *this;
+            }
+            iterator operator ++ (int)
+            {
+                iterator temp = *this;
+                ::std::advance(it, utf8::internal::sequence_length(it));
+                return temp;
+            }  
+            iterator& operator -- ()
+            {
+                utf8::unchecked::prior(it);
+                return *this;
+            }
+            iterator operator -- (int)
+            {
+                iterator temp = *this;
+                utf8::unchecked::prior(it);
+                return temp;
+            }
+          }; // class iterator
+
+    } // namespace utf8::unchecked
+} // namespace utf8 
+
+
+#endif // header guard
+
diff --git a/thirdparty/assimp/include/assimp/.editorconfig b/thirdparty/assimp/include/assimp/.editorconfig
new file mode 100644
index 0000000000..9ea66423ad
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/.editorconfig
@@ -0,0 +1,8 @@
+# See <http://EditorConfig.org> for details
+
+[*.{h,hpp,inl}]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_size = 4
+indent_style = space
diff --git a/thirdparty/assimp/include/assimp/BaseImporter.h b/thirdparty/assimp/include/assimp/BaseImporter.h
new file mode 100644
index 0000000000..48dfc8ed8b
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/BaseImporter.h
@@ -0,0 +1,361 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Definition of the base class for all importer worker classes. */
+#ifndef INCLUDED_AI_BASEIMPORTER_H
+#define INCLUDED_AI_BASEIMPORTER_H
+
+#include "Exceptional.h"
+
+#include <vector>
+#include <set>
+#include <assimp/types.h>
+#include <assimp/ProgressHandler.hpp>
+
+struct aiScene;
+struct aiImporterDesc;
+
+namespace Assimp    {
+
+class Importer;
+class IOSystem;
+class BaseProcess;
+class SharedPostProcessInfo;
+class IOStream;
+
+// utility to do char4 to uint32 in a portable manner
+#define AI_MAKE_MAGIC(string) ((uint32_t)((string[0] << 24) + \
+    (string[1] << 16) + (string[2] << 8) + string[3]))
+
+
+// ---------------------------------------------------------------------------
+/** FOR IMPORTER PLUGINS ONLY: The BaseImporter defines a common interface
+ *  for all importer worker classes.
+ *
+ * The interface defines two functions: CanRead() is used to check if the
+ * importer can handle the format of the given file. If an implementation of
+ * this function returns true, the importer then calls ReadFile() which
+ * imports the given file. ReadFile is not overridable, it just calls
+ * InternReadFile() and catches any ImportErrorException that might occur.
+ */
+class ASSIMP_API BaseImporter {
+    friend class Importer;
+
+public:
+
+    /** Constructor to be privately used by #Importer */
+    BaseImporter() AI_NO_EXCEPT;
+
+    /** Destructor, private as well */
+    virtual ~BaseImporter();
+
+    // -------------------------------------------------------------------
+    /** Returns whether the class can handle the format of the given file.
+     *
+     * The implementation should be as quick as possible. A check for
+     * the file extension is enough. If no suitable loader is found with
+     * this strategy, CanRead() is called again, the 'checkSig' parameter
+     * set to true this time. Now the implementation is expected to
+     * perform a full check of the file structure, possibly searching the
+     * first bytes of the file for magic identifiers or keywords.
+     *
+     * @param pFile Path and file name of the file to be examined.
+     * @param pIOHandler The IO handler to use for accessing any file.
+     * @param checkSig Set to true if this method is called a second time.
+     *   This time, the implementation may take more time to examine the
+     *   contents of the file to be loaded for magic bytes, keywords, etc
+     *   to be able to load files with unknown/not existent file extensions.
+     * @return true if the class can read this file, false if not.
+     */
+    virtual bool CanRead(
+        const std::string& pFile,
+        IOSystem* pIOHandler,
+        bool checkSig
+        ) const = 0;
+
+    // -------------------------------------------------------------------
+    /** Imports the given file and returns the imported data.
+     * If the import succeeds, ownership of the data is transferred to
+     * the caller. If the import fails, NULL is returned. The function
+     * takes care that any partially constructed data is destroyed
+     * beforehand.
+     *
+     * @param pImp #Importer object hosting this loader.
+     * @param pFile Path of the file to be imported.
+     * @param pIOHandler IO-Handler used to open this and possible other files.
+     * @return The imported data or NULL if failed. If it failed a
+     * human-readable error description can be retrieved by calling
+     * GetErrorText()
+     *
+     * @note This function is not intended to be overridden. Implement
+     * InternReadFile() to do the import. If an exception is thrown somewhere
+     * in InternReadFile(), this function will catch it and transform it into
+     *  a suitable response to the caller.
+     */
+    aiScene* ReadFile(
+        const Importer* pImp,
+        const std::string& pFile,
+        IOSystem* pIOHandler
+        );
+
+    // -------------------------------------------------------------------
+    /** Returns the error description of the last error that occurred.
+     * @return A description of the last error that occurred. An empty
+     * string if there was no error.
+     */
+    const std::string& GetErrorText() const {
+        return m_ErrorText;
+    }
+
+    // -------------------------------------------------------------------
+    /** Called prior to ReadFile().
+     * The function is a request to the importer to update its configuration
+     * basing on the Importer's configuration property list.
+     * @param pImp Importer instance
+     */
+    virtual void SetupProperties(
+        const Importer* pImp
+        );
+
+    // -------------------------------------------------------------------
+    /** Called by #Importer::GetImporterInfo to get a description of
+     *  some loader features. Importers must provide this information. */
+    virtual const aiImporterDesc* GetInfo() const = 0;
+
+    // -------------------------------------------------------------------
+    /** Called by #Importer::GetExtensionList for each loaded importer.
+     *  Take the extension list contained in the structure returned by
+     *  #GetInfo and insert all file extensions into the given set.
+     *  @param extension set to collect file extensions in*/
+    void GetExtensionList(std::set<std::string>& extensions);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Imports the given file into the given scene structure. The
+     * function is expected to throw an ImportErrorException if there is
+     * an error. If it terminates normally, the data in aiScene is
+     * expected to be correct. Override this function to implement the
+     * actual importing.
+     * <br>
+     *  The output scene must meet the following requirements:<br>
+     * <ul>
+     * <li>At least a root node must be there, even if its only purpose
+     *     is to reference one mesh.</li>
+     * <li>aiMesh::mPrimitiveTypes may be 0. The types of primitives
+     *   in the mesh are determined automatically in this case.</li>
+     * <li>the vertex data is stored in a pseudo-indexed "verbose" format.
+     *   In fact this means that every vertex that is referenced by
+     *   a face is unique. Or the other way round: a vertex index may
+     *   not occur twice in a single aiMesh.</li>
+     * <li>aiAnimation::mDuration may be -1. Assimp determines the length
+     *   of the animation automatically in this case as the length of
+     *   the longest animation channel.</li>
+     * <li>aiMesh::mBitangents may be NULL if tangents and normals are
+     *   given. In this case bitangents are computed as the cross product
+     *   between normal and tangent.</li>
+     * <li>There needn't be a material. If none is there a default material
+     *   is generated. However, it is recommended practice for loaders
+     *   to generate a default material for yourself that matches the
+     *   default material setting for the file format better than Assimp's
+     *   generic default material. Note that default materials *should*
+     *   be named AI_DEFAULT_MATERIAL_NAME if they're just color-shaded
+     *   or AI_DEFAULT_TEXTURED_MATERIAL_NAME if they define a (dummy)
+     *   texture. </li>
+     * </ul>
+     * If the AI_SCENE_FLAGS_INCOMPLETE-Flag is <b>not</b> set:<ul>
+     * <li> at least one mesh must be there</li>
+     * <li> there may be no meshes with 0 vertices or faces</li>
+     * </ul>
+     * This won't be checked (except by the validation step): Assimp will
+     * crash if one of the conditions is not met!
+     *
+     * @param pFile Path of the file to be imported.
+     * @param pScene The scene object to hold the imported data.
+     * NULL is not a valid parameter.
+     * @param pIOHandler The IO handler to use for any file access.
+     * NULL is not a valid parameter. */
+    virtual void InternReadFile(
+        const std::string& pFile,
+        aiScene* pScene,
+        IOSystem* pIOHandler
+        ) = 0;
+
+public: // static utilities
+
+    // -------------------------------------------------------------------
+    /** A utility for CanRead().
+     *
+     *  The function searches the header of a file for a specific token
+     *  and returns true if this token is found. This works for text
+     *  files only. There is a rudimentary handling of UNICODE files.
+     *  The comparison is case independent.
+     *
+     *  @param pIOSystem IO System to work with
+     *  @param file File name of the file
+     *  @param tokens List of tokens to search for
+     *  @param numTokens Size of the token array
+     *  @param searchBytes Number of bytes to be searched for the tokens.
+     */
+    static bool SearchFileHeaderForToken(
+        IOSystem* pIOSystem,
+        const std::string&  file,
+        const char** tokens,
+        unsigned int numTokens,
+        unsigned int searchBytes = 200,
+        bool tokensSol = false,
+        bool noAlphaBeforeTokens = false);
+
+    // -------------------------------------------------------------------
+    /** @brief Check whether a file has a specific file extension
+     *  @param pFile Input file
+     *  @param ext0 Extension to check for. Lowercase characters only, no dot!
+     *  @param ext1 Optional second extension
+     *  @param ext2 Optional third extension
+     *  @note Case-insensitive
+     */
+    static bool SimpleExtensionCheck (
+        const std::string& pFile,
+        const char* ext0,
+        const char* ext1 = NULL,
+        const char* ext2 = NULL);
+
+    // -------------------------------------------------------------------
+    /** @brief Extract file extension from a string
+     *  @param pFile Input file
+     *  @return Extension without trailing dot, all lowercase
+     */
+    static std::string GetExtension (
+        const std::string& pFile);
+
+    // -------------------------------------------------------------------
+    /** @brief Check whether a file starts with one or more magic tokens
+     *  @param pFile Input file
+     *  @param pIOHandler IO system to be used
+     *  @param magic n magic tokens
+     *  @params num Size of magic
+     *  @param offset Offset from file start where tokens are located
+     *  @param Size of one token, in bytes. Maximally 16 bytes.
+     *  @return true if one of the given tokens was found
+     *
+     *  @note For convenience, the check is also performed for the
+     *  byte-swapped variant of all tokens (big endian). Only for
+     *  tokens of size 2,4.
+     */
+    static bool CheckMagicToken(
+        IOSystem* pIOHandler,
+        const std::string& pFile,
+        const void* magic,
+        unsigned int num,
+        unsigned int offset = 0,
+        unsigned int size   = 4);
+
+    // -------------------------------------------------------------------
+    /** An utility for all text file loaders. It converts a file to our
+     *   UTF8 character set. Errors are reported, but ignored.
+     *
+     *  @param data File buffer to be converted to UTF8 data. The buffer
+     *  is resized as appropriate. */
+    static void ConvertToUTF8(
+        std::vector<char>& data);
+
+    // -------------------------------------------------------------------
+    /** An utility for all text file loaders. It converts a file from our
+     *   UTF8 character set back to ISO-8859-1. Errors are reported, but ignored.
+     *
+     *  @param data File buffer to be converted from UTF8 to ISO-8859-1. The buffer
+     *  is resized as appropriate. */
+    static void ConvertUTF8toISO8859_1(
+        std::string& data);
+
+    // -------------------------------------------------------------------
+    /// @brief  Enum to define, if empty files are ok or not.
+    enum TextFileMode { 
+        ALLOW_EMPTY,
+        FORBID_EMPTY 
+    };
+
+    // -------------------------------------------------------------------
+    /** Utility for text file loaders which copies the contents of the
+     *  file into a memory buffer and converts it to our UTF8
+     *  representation.
+     *  @param stream Stream to read from.
+     *  @param data Output buffer to be resized and filled with the
+     *   converted text file data. The buffer is terminated with
+     *   a binary 0.
+     *  @param mode Whether it is OK to load empty text files. */
+    static void TextFileToBuffer(
+        IOStream* stream,
+        std::vector<char>& data,
+        TextFileMode mode = FORBID_EMPTY);
+
+    // -------------------------------------------------------------------
+    /** Utility function to move a std::vector into a aiScene array
+    *  @param vec The vector to be moved
+    *  @param out The output pointer to the allocated array.
+    *  @param numOut The output count of elements copied. */
+    template<typename T>
+    AI_FORCE_INLINE
+    static void CopyVector(
+        std::vector<T>& vec,
+        T*& out,
+        unsigned int& outLength)
+    {
+        outLength = unsigned(vec.size());
+        if (outLength) {
+            out = new T[outLength];
+            std::swap_ranges(vec.begin(), vec.end(), out);
+        }
+    }
+
+protected:
+    /// Error description in case there was one.
+    std::string m_ErrorText;
+    /// Currently set progress handler.
+    ProgressHandler* m_progress;
+};
+
+
+
+} // end of namespace Assimp
+
+#endif // AI_BASEIMPORTER_H_INC
diff --git a/thirdparty/assimp/include/assimp/Bitmap.h b/thirdparty/assimp/include/assimp/Bitmap.h
new file mode 100644
index 0000000000..e6b5fb1327
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Bitmap.h
@@ -0,0 +1,125 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Bitmap.h
+ *  @brief Defines bitmap format helper for textures
+ *
+ * Used for file formats which embed their textures into the model file.
+ */
+
+#ifndef AI_BITMAP_H_INC
+#define AI_BITMAP_H_INC
+
+#include "defs.h"
+#include <stdint.h>
+#include <cstddef>
+
+struct aiTexture;
+
+namespace Assimp {
+
+class IOStream;
+
+class ASSIMP_API Bitmap {
+protected:
+
+    struct Header {
+        uint16_t type;
+        uint32_t size;
+        uint16_t reserved1;
+        uint16_t reserved2;
+        uint32_t offset;
+
+        // We define the struct size because sizeof(Header) might return a wrong result because of structure padding.
+        // Moreover, we must use this ugly and error prone syntax because Visual Studio neither support constexpr or sizeof(name_of_field).
+        static const std::size_t header_size =
+            sizeof(uint16_t) + // type
+            sizeof(uint32_t) + // size
+            sizeof(uint16_t) + // reserved1
+            sizeof(uint16_t) + // reserved2
+            sizeof(uint32_t);  // offset
+    };
+
+    struct DIB {
+        uint32_t size;
+        int32_t width;
+        int32_t height;
+        uint16_t planes;
+        uint16_t bits_per_pixel;
+        uint32_t compression;
+        uint32_t image_size;
+        int32_t x_resolution;
+        int32_t y_resolution;
+        uint32_t nb_colors;
+        uint32_t nb_important_colors;
+
+        // We define the struct size because sizeof(DIB) might return a wrong result because of structure padding.
+        // Moreover, we must use this ugly and error prone syntax because Visual Studio neither support constexpr or sizeof(name_of_field).
+        static const std::size_t dib_size =
+            sizeof(uint32_t) + // size
+            sizeof(int32_t) +  // width
+            sizeof(int32_t) +  // height
+            sizeof(uint16_t) + // planes
+            sizeof(uint16_t) + // bits_per_pixel
+            sizeof(uint32_t) + // compression
+            sizeof(uint32_t) + // image_size
+            sizeof(int32_t) +  // x_resolution
+            sizeof(int32_t) +  // y_resolution
+            sizeof(uint32_t) + // nb_colors
+            sizeof(uint32_t);  // nb_important_colors
+    };
+
+    static const std::size_t mBytesPerPixel = 4;
+
+public:
+    static void Save(aiTexture* texture, IOStream* file);
+
+protected:
+    static void WriteHeader(Header& header, IOStream* file);
+    static void WriteDIB(DIB& dib, IOStream* file);
+    static void WriteData(aiTexture* texture, IOStream* file);
+};
+
+}
+
+#endif // AI_BITMAP_H_INC
diff --git a/thirdparty/assimp/include/assimp/BlobIOSystem.h b/thirdparty/assimp/include/assimp/BlobIOSystem.h
new file mode 100644
index 0000000000..d005e5c119
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/BlobIOSystem.h
@@ -0,0 +1,338 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Provides cheat implementations for IOSystem and IOStream to
+ *  redirect exporter output to a blob chain.*/
+
+#ifndef AI_BLOBIOSYSTEM_H_INCLUDED
+#define AI_BLOBIOSYSTEM_H_INCLUDED
+
+#include <assimp/IOStream.hpp>
+#include <assimp/cexport.h>
+#include <assimp/IOSystem.hpp>
+#include <assimp/DefaultLogger.hpp>
+#include <stdint.h>
+#include <set>
+#include <vector>
+
+namespace Assimp    {
+    class BlobIOSystem;
+
+// --------------------------------------------------------------------------------------------
+/** Redirect IOStream to a blob */
+// --------------------------------------------------------------------------------------------
+class BlobIOStream : public IOStream
+{
+public:
+
+    BlobIOStream(BlobIOSystem* creator, const std::string& file, size_t initial = 4096)
+        : buffer()
+        , cur_size()
+        , file_size()
+        , cursor()
+        , initial(initial)
+        , file(file)
+        , creator(creator)
+    {
+    }
+
+
+    virtual ~BlobIOStream();
+
+public:
+
+    // -------------------------------------------------------------------
+    aiExportDataBlob* GetBlob()
+    {
+        aiExportDataBlob* blob = new aiExportDataBlob();
+        blob->size = file_size;
+        blob->data = buffer;
+
+        buffer = NULL;
+
+        return blob;
+    }
+
+
+public:
+
+
+    // -------------------------------------------------------------------
+    virtual size_t Read( void *,
+        size_t,
+        size_t )
+    {
+        return 0;
+    }
+
+    // -------------------------------------------------------------------
+    virtual size_t Write(const void* pvBuffer,
+        size_t pSize,
+        size_t pCount)
+    {
+        pSize *= pCount;
+        if (cursor + pSize > cur_size) {
+            Grow(cursor + pSize);
+        }
+
+        memcpy(buffer+cursor, pvBuffer, pSize);
+        cursor += pSize;
+
+        file_size = std::max(file_size,cursor);
+        return pCount;
+    }
+
+    // -------------------------------------------------------------------
+    virtual aiReturn Seek(size_t pOffset,
+        aiOrigin pOrigin)
+    {
+        switch(pOrigin)
+        {
+        case aiOrigin_CUR:
+            cursor += pOffset;
+            break;
+
+        case aiOrigin_END:
+            cursor = file_size - pOffset;
+            break;
+
+        case aiOrigin_SET:
+            cursor = pOffset;
+            break;
+
+        default:
+            return AI_FAILURE;
+        }
+
+        if (cursor > file_size) {
+            Grow(cursor);
+        }
+
+        file_size = std::max(cursor,file_size);
+        return AI_SUCCESS;
+    }
+
+    // -------------------------------------------------------------------
+    virtual size_t Tell() const
+    {
+        return cursor;
+    }
+
+    // -------------------------------------------------------------------
+    virtual size_t FileSize() const
+    {
+        return file_size;
+    }
+
+    // -------------------------------------------------------------------
+    virtual void Flush()
+    {
+        // ignore
+    }
+
+
+
+private:
+
+    // -------------------------------------------------------------------
+    void Grow(size_t need = 0)
+    {
+        // 1.5 and phi are very heap-friendly growth factors (the first
+        // allows for frequent re-use of heap blocks, the second
+        // forms a fibonacci sequence with similar characteristics -
+        // since this heavily depends on the heap implementation
+        // and other factors as well, i'll just go with 1.5 since
+        // it is quicker to compute).
+        size_t new_size = std::max(initial, std::max( need, cur_size+(cur_size>>1) ));
+
+        const uint8_t* const old = buffer;
+        buffer = new uint8_t[new_size];
+
+        if (old) {
+            memcpy(buffer,old,cur_size);
+            delete[] old;
+        }
+
+        cur_size = new_size;
+    }
+
+private:
+
+    uint8_t* buffer;
+    size_t cur_size,file_size, cursor, initial;
+
+    const std::string file;
+    BlobIOSystem* const creator;
+};
+
+
+#define AI_BLOBIO_MAGIC "$blobfile"
+
+// --------------------------------------------------------------------------------------------
+/** Redirect IOSystem to a blob */
+// --------------------------------------------------------------------------------------------
+class BlobIOSystem : public IOSystem
+{
+
+    friend class BlobIOStream;
+    typedef std::pair<std::string, aiExportDataBlob*> BlobEntry;
+
+public:
+
+    BlobIOSystem()
+    {
+    }
+
+    virtual ~BlobIOSystem()
+    {
+        for(BlobEntry& blobby : blobs) {
+            delete blobby.second;
+        }
+    }
+
+public:
+
+    // -------------------------------------------------------------------
+    const char* GetMagicFileName() const
+    {
+        return AI_BLOBIO_MAGIC;
+    }
+
+
+    // -------------------------------------------------------------------
+    aiExportDataBlob* GetBlobChain()
+    {
+        // one must be the master
+        aiExportDataBlob* master = NULL, *cur;
+        for(const BlobEntry& blobby : blobs) {
+            if (blobby.first == AI_BLOBIO_MAGIC) {
+                master = blobby.second;
+                break;
+            }
+        }
+        if (!master) {
+            ASSIMP_LOG_ERROR("BlobIOSystem: no data written or master file was not closed properly.");
+            return NULL;
+        }
+
+        master->name.Set("");
+
+        cur = master;
+        for(const BlobEntry& blobby : blobs) {
+            if (blobby.second == master) {
+                continue;
+            }
+
+            cur->next = blobby.second;
+            cur = cur->next;
+
+            // extract the file extension from the file written
+            const std::string::size_type s = blobby.first.find_first_of('.');
+            cur->name.Set(s == std::string::npos ? blobby.first : blobby.first.substr(s+1));
+        }
+
+        // give up blob ownership
+        blobs.clear();
+        return master;
+    }
+
+public:
+
+    // -------------------------------------------------------------------
+    virtual bool Exists( const char* pFile) const {
+        return created.find(std::string(pFile)) != created.end();
+    }
+
+
+    // -------------------------------------------------------------------
+    virtual char getOsSeparator() const {
+        return '/';
+    }
+
+
+    // -------------------------------------------------------------------
+    virtual IOStream* Open(const char* pFile,
+        const char* pMode)
+    {
+        if (pMode[0] != 'w') {
+            return NULL;
+        }
+
+        created.insert(std::string(pFile));
+        return new BlobIOStream(this,std::string(pFile));
+    }
+
+    // -------------------------------------------------------------------
+    virtual void Close( IOStream* pFile)
+    {
+        delete pFile;
+    }
+
+private:
+
+    // -------------------------------------------------------------------
+    void OnDestruct(const std::string& filename, BlobIOStream* child)
+    {
+        // we don't know in which the files are closed, so we
+        // can't reliably say that the first must be the master
+        // file ...
+        blobs.push_back( BlobEntry(filename,child->GetBlob()) );
+    }
+
+private:
+    std::set<std::string> created;
+    std::vector< BlobEntry > blobs;
+};
+
+
+// --------------------------------------------------------------------------------------------
+BlobIOStream :: ~BlobIOStream()
+{
+    creator->OnDestruct(file,this);
+    delete[] buffer;
+}
+
+
+} // end Assimp
+
+#endif
diff --git a/thirdparty/assimp/include/assimp/ByteSwapper.h b/thirdparty/assimp/include/assimp/ByteSwapper.h
new file mode 100644
index 0000000000..20a2463fb8
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/ByteSwapper.h
@@ -0,0 +1,287 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Helper class tp perform various byte oder swappings
+   (e.g. little to big endian) */
+#ifndef AI_BYTESWAPPER_H_INC
+#define AI_BYTESWAPPER_H_INC
+
+#include <assimp/ai_assert.h>
+#include <assimp/types.h>
+#include <stdint.h>
+
+#if _MSC_VER >= 1400
+#include <stdlib.h>
+#endif
+
+namespace Assimp    {
+// --------------------------------------------------------------------------------------
+/** Defines some useful byte order swap routines.
+ *
+ * This is required to read big-endian model formats on little-endian machines,
+ * and vice versa. Direct use of this class is DEPRECATED. Use #StreamReader instead. */
+// --------------------------------------------------------------------------------------
+class ByteSwap {
+    ByteSwap() AI_NO_EXCEPT {}
+
+public:
+
+    // ----------------------------------------------------------------------
+    /** Swap two bytes of data
+     *  @param[inout] _szOut A void* to save the reintcasts for the caller. */
+    static inline void Swap2(void* _szOut)
+    {
+        ai_assert(_szOut);
+
+#if _MSC_VER >= 1400
+        uint16_t* const szOut = reinterpret_cast<uint16_t*>(_szOut);
+        *szOut = _byteswap_ushort(*szOut);
+#else
+        uint8_t* const szOut = reinterpret_cast<uint8_t*>(_szOut);
+        std::swap(szOut[0],szOut[1]);
+#endif
+    }
+
+    // ----------------------------------------------------------------------
+    /** Swap four bytes of data
+     *  @param[inout] _szOut A void* to save the reintcasts for the caller. */
+    static inline void Swap4(void* _szOut)
+    {
+        ai_assert(_szOut);
+
+#if _MSC_VER >= 1400
+        uint32_t* const szOut = reinterpret_cast<uint32_t*>(_szOut);
+        *szOut = _byteswap_ulong(*szOut);
+#else
+        uint8_t* const szOut = reinterpret_cast<uint8_t*>(_szOut);
+        std::swap(szOut[0],szOut[3]);
+        std::swap(szOut[1],szOut[2]);
+#endif
+    }
+
+    // ----------------------------------------------------------------------
+    /** Swap eight bytes of data
+     *  @param[inout] _szOut A void* to save the reintcasts for the caller. */
+    static inline void Swap8(void* _szOut)
+    {
+    ai_assert(_szOut);
+
+#if _MSC_VER >= 1400
+        uint64_t* const szOut = reinterpret_cast<uint64_t*>(_szOut);
+        *szOut = _byteswap_uint64(*szOut);
+#else
+        uint8_t* const szOut = reinterpret_cast<uint8_t*>(_szOut);
+        std::swap(szOut[0],szOut[7]);
+        std::swap(szOut[1],szOut[6]);
+        std::swap(szOut[2],szOut[5]);
+        std::swap(szOut[3],szOut[4]);
+#endif
+    }
+
+    // ----------------------------------------------------------------------
+    /** ByteSwap a float. Not a joke.
+     *  @param[inout] fOut ehm. .. */
+    static inline void Swap(float* fOut) {
+        Swap4(fOut);
+    }
+
+    // ----------------------------------------------------------------------
+    /** ByteSwap a double. Not a joke.
+     *  @param[inout] fOut ehm. .. */
+    static inline void Swap(double* fOut) {
+        Swap8(fOut);
+    }
+
+
+    // ----------------------------------------------------------------------
+    /** ByteSwap an int16t. Not a joke.
+     *  @param[inout] fOut ehm. .. */
+    static inline void Swap(int16_t* fOut) {
+        Swap2(fOut);
+    }
+
+    static inline void Swap(uint16_t* fOut) {
+        Swap2(fOut);
+    }
+
+    // ----------------------------------------------------------------------
+    /** ByteSwap an int32t. Not a joke.
+     *  @param[inout] fOut ehm. .. */
+    static inline void Swap(int32_t* fOut){
+        Swap4(fOut);
+    }
+
+    static inline void Swap(uint32_t* fOut){
+        Swap4(fOut);
+    }
+
+    // ----------------------------------------------------------------------
+    /** ByteSwap an int64t. Not a joke.
+     *  @param[inout] fOut ehm. .. */
+    static inline void Swap(int64_t* fOut) {
+        Swap8(fOut);
+    }
+
+    static inline void Swap(uint64_t* fOut) {
+        Swap8(fOut);
+    }
+
+    // ----------------------------------------------------------------------
+    //! Templatized ByteSwap
+    //! \returns param tOut as swapped
+    template<typename Type>
+    static inline Type Swapped(Type tOut)
+    {
+        return _swapper<Type,sizeof(Type)>()(tOut);
+    }
+
+private:
+
+    template <typename T, size_t size> struct _swapper;
+};
+
+template <typename T> struct ByteSwap::_swapper<T,2> {
+    T operator() (T tOut) {
+        Swap2(&tOut);
+        return tOut;
+    }
+};
+
+template <typename T> struct ByteSwap::_swapper<T,4> {
+    T operator() (T tOut) {
+        Swap4(&tOut);
+        return tOut;
+    }
+};
+
+template <typename T> struct ByteSwap::_swapper<T,8> {
+    T operator() (T tOut) {
+        Swap8(&tOut);
+        return tOut;
+    }
+};
+
+
+// --------------------------------------------------------------------------------------
+// ByteSwap macros for BigEndian/LittleEndian support
+// --------------------------------------------------------------------------------------
+#if (defined AI_BUILD_BIG_ENDIAN)
+#   define AI_LE(t) (t)
+#   define AI_BE(t) ByteSwap::Swapped(t)
+#   define AI_LSWAP2(p)
+#   define AI_LSWAP4(p)
+#   define AI_LSWAP8(p)
+#   define AI_LSWAP2P(p)
+#   define AI_LSWAP4P(p)
+#   define AI_LSWAP8P(p)
+#   define LE_NCONST const
+#   define AI_SWAP2(p) ByteSwap::Swap2(&(p))
+#   define AI_SWAP4(p) ByteSwap::Swap4(&(p))
+#   define AI_SWAP8(p) ByteSwap::Swap8(&(p))
+#   define AI_SWAP2P(p) ByteSwap::Swap2((p))
+#   define AI_SWAP4P(p) ByteSwap::Swap4((p))
+#   define AI_SWAP8P(p) ByteSwap::Swap8((p))
+#   define BE_NCONST
+#else
+#   define AI_BE(t) (t)
+#   define AI_LE(t) ByteSwap::Swapped(t)
+#   define AI_SWAP2(p)
+#   define AI_SWAP4(p)
+#   define AI_SWAP8(p)
+#   define AI_SWAP2P(p)
+#   define AI_SWAP4P(p)
+#   define AI_SWAP8P(p)
+#   define BE_NCONST const
+#   define AI_LSWAP2(p)     ByteSwap::Swap2(&(p))
+#   define AI_LSWAP4(p)     ByteSwap::Swap4(&(p))
+#   define AI_LSWAP8(p)     ByteSwap::Swap8(&(p))
+#   define AI_LSWAP2P(p)    ByteSwap::Swap2((p))
+#   define AI_LSWAP4P(p)    ByteSwap::Swap4((p))
+#   define AI_LSWAP8P(p)    ByteSwap::Swap8((p))
+#   define LE_NCONST
+#endif
+
+
+namespace Intern {
+
+// --------------------------------------------------------------------------------------------
+template <typename T, bool doit>
+struct ByteSwapper  {
+    void operator() (T* inout) {
+        ByteSwap::Swap(inout);
+    }
+};
+
+template <typename T>
+struct ByteSwapper<T,false> {
+    void operator() (T*) {
+    }
+};
+
+// --------------------------------------------------------------------------------------------
+template <bool SwapEndianess, typename T, bool RuntimeSwitch>
+struct Getter {
+    void operator() (T* inout, bool le) {
+#ifdef AI_BUILD_BIG_ENDIAN
+        le =  le;
+#else
+        le =  !le;
+#endif
+        if (le) {
+            ByteSwapper<T,(sizeof(T)>1?true:false)> () (inout);
+        }
+        else ByteSwapper<T,false> () (inout);
+    }
+};
+
+template <bool SwapEndianess, typename T>
+struct Getter<SwapEndianess,T,false> {
+
+    void operator() (T* inout, bool /*le*/) {
+        // static branch
+        ByteSwapper<T,(SwapEndianess && sizeof(T)>1)> () (inout);
+    }
+};
+} // end Intern
+} // end Assimp
+
+#endif //!! AI_BYTESWAPPER_H_INC
diff --git a/thirdparty/assimp/include/assimp/Compiler/poppack1.h b/thirdparty/assimp/include/assimp/Compiler/poppack1.h
new file mode 100644
index 0000000000..e033bc1472
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Compiler/poppack1.h
@@ -0,0 +1,22 @@
+
+// ===============================================================================
+// May be included multiple times - resets structure packing to the defaults 
+// for all supported compilers. Reverts the changes made by #include <pushpack1.h> 
+//
+// Currently this works on the following compilers:
+// MSVC 7,8,9
+// GCC
+// BORLAND (complains about 'pack state changed but not reverted', but works)
+// ===============================================================================
+
+#ifndef AI_PUSHPACK_IS_DEFINED
+#	error pushpack1.h must be included after poppack1.h
+#endif
+
+// reset packing to the original value
+#if defined(_MSC_VER) ||  defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
+#	pragma pack( pop )
+#endif
+#undef PACK_STRUCT
+
+#undef AI_PUSHPACK_IS_DEFINED
diff --git a/thirdparty/assimp/include/assimp/Compiler/pstdint.h b/thirdparty/assimp/include/assimp/Compiler/pstdint.h
new file mode 100644
index 0000000000..4de4ce2a90
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Compiler/pstdint.h
@@ -0,0 +1,912 @@
+/*  A portable stdint.h
+ ****************************************************************************
+ *  BSD License:
+ ****************************************************************************
+ *
+ *  Copyright (c) 2005-2016 Paul Hsieh
+ *  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************
+ *
+ *  Version 0.1.15.4
+ *
+ *  The ANSI C standard committee, for the C99 standard, specified the
+ *  inclusion of a new standard include file called stdint.h.  This is
+ *  a very useful and long desired include file which contains several
+ *  very precise definitions for integer scalar types that is
+ *  critically important for making portable several classes of
+ *  applications including cryptography, hashing, variable length
+ *  integer libraries and so on.  But for most developers its likely
+ *  useful just for programming sanity.
+ *
+ *  The problem is that some compiler vendors chose to ignore the C99
+ *  standard and some older compilers have no opportunity to be updated.
+ *  Because of this situation, simply including stdint.h in your code
+ *  makes it unportable.
+ *
+ *  So that's what this file is all about.  Its an attempt to build a
+ *  single universal include file that works on as many platforms as
+ *  possible to deliver what stdint.h is supposed to.  Even compilers
+ *  that already come with stdint.h can use this file instead without
+ *  any loss of functionality.  A few things that should be noted about
+ *  this file:
+ *
+ *    1) It is not guaranteed to be portable and/or present an identical
+ *       interface on all platforms.  The extreme variability of the
+ *       ANSI C standard makes this an impossibility right from the
+ *       very get go. Its really only meant to be useful for the vast
+ *       majority of platforms that possess the capability of
+ *       implementing usefully and precisely defined, standard sized
+ *       integer scalars.  Systems which are not intrinsically 2s
+ *       complement may produce invalid constants.
+ *
+ *    2) There is an unavoidable use of non-reserved symbols.
+ *
+ *    3) Other standard include files are invoked.
+ *
+ *    4) This file may come in conflict with future platforms that do
+ *       include stdint.h.  The hope is that one or the other can be
+ *       used with no real difference.
+ *
+ *    5) In the current version, if your platform can't represent
+ *       int32_t, int16_t and int8_t, it just dumps out with a compiler
+ *       error.
+ *
+ *    6) 64 bit integers may or may not be defined.  Test for their
+ *       presence with the test: #ifdef INT64_MAX or #ifdef UINT64_MAX.
+ *       Note that this is different from the C99 specification which
+ *       requires the existence of 64 bit support in the compiler.  If
+ *       this is not defined for your platform, yet it is capable of
+ *       dealing with 64 bits then it is because this file has not yet
+ *       been extended to cover all of your system's capabilities.
+ *
+ *    7) (u)intptr_t may or may not be defined.  Test for its presence
+ *       with the test: #ifdef PTRDIFF_MAX.  If this is not defined
+ *       for your platform, then it is because this file has not yet
+ *       been extended to cover all of your system's capabilities, not
+ *       because its optional.
+ *
+ *    8) The following might not been defined even if your platform is
+ *       capable of defining it:
+ *
+ *       WCHAR_MIN
+ *       WCHAR_MAX
+ *       (u)int64_t
+ *       PTRDIFF_MIN
+ *       PTRDIFF_MAX
+ *       (u)intptr_t
+ *
+ *    9) The following have not been defined:
+ *
+ *       WINT_MIN
+ *       WINT_MAX
+ *
+ *   10) The criteria for defining (u)int_least(*)_t isn't clear,
+ *       except for systems which don't have a type that precisely
+ *       defined 8, 16, or 32 bit types (which this include file does
+ *       not support anyways). Default definitions have been given.
+ *
+ *   11) The criteria for defining (u)int_fast(*)_t isn't something I
+ *       would trust to any particular compiler vendor or the ANSI C
+ *       committee.  It is well known that "compatible systems" are
+ *       commonly created that have very different performance
+ *       characteristics from the systems they are compatible with,
+ *       especially those whose vendors make both the compiler and the
+ *       system.  Default definitions have been given, but its strongly
+ *       recommended that users never use these definitions for any
+ *       reason (they do *NOT* deliver any serious guarantee of
+ *       improved performance -- not in this file, nor any vendor's
+ *       stdint.h).
+ *
+ *   12) The following macros:
+ *
+ *       PRINTF_INTMAX_MODIFIER
+ *       PRINTF_INT64_MODIFIER
+ *       PRINTF_INT32_MODIFIER
+ *       PRINTF_INT16_MODIFIER
+ *       PRINTF_LEAST64_MODIFIER
+ *       PRINTF_LEAST32_MODIFIER
+ *       PRINTF_LEAST16_MODIFIER
+ *       PRINTF_INTPTR_MODIFIER
+ *
+ *       are strings which have been defined as the modifiers required
+ *       for the "d", "u" and "x" printf formats to correctly output
+ *       (u)intmax_t, (u)int64_t, (u)int32_t, (u)int16_t, (u)least64_t,
+ *       (u)least32_t, (u)least16_t and (u)intptr_t types respectively.
+ *       PRINTF_INTPTR_MODIFIER is not defined for some systems which
+ *       provide their own stdint.h.  PRINTF_INT64_MODIFIER is not
+ *       defined if INT64_MAX is not defined.  These are an extension
+ *       beyond what C99 specifies must be in stdint.h.
+ *
+ *       In addition, the following macros are defined:
+ *
+ *       PRINTF_INTMAX_HEX_WIDTH
+ *       PRINTF_INT64_HEX_WIDTH
+ *       PRINTF_INT32_HEX_WIDTH
+ *       PRINTF_INT16_HEX_WIDTH
+ *       PRINTF_INT8_HEX_WIDTH
+ *       PRINTF_INTMAX_DEC_WIDTH
+ *       PRINTF_INT64_DEC_WIDTH
+ *       PRINTF_INT32_DEC_WIDTH
+ *       PRINTF_INT16_DEC_WIDTH
+ *       PRINTF_UINT8_DEC_WIDTH
+ *       PRINTF_UINTMAX_DEC_WIDTH
+ *       PRINTF_UINT64_DEC_WIDTH
+ *       PRINTF_UINT32_DEC_WIDTH
+ *       PRINTF_UINT16_DEC_WIDTH
+ *       PRINTF_UINT8_DEC_WIDTH
+ *
+ *       Which specifies the maximum number of characters required to
+ *       print the number of that type in either hexadecimal or decimal.
+ *       These are an extension beyond what C99 specifies must be in
+ *       stdint.h.
+ *
+ *  Compilers tested (all with 0 warnings at their highest respective
+ *  settings): Borland Turbo C 2.0, WATCOM C/C++ 11.0 (16 bits and 32
+ *  bits), Microsoft Visual C++ 6.0 (32 bit), Microsoft Visual Studio
+ *  .net (VC7), Intel C++ 4.0, GNU gcc v3.3.3
+ *
+ *  This file should be considered a work in progress.  Suggestions for
+ *  improvements, especially those which increase coverage are strongly
+ *  encouraged.
+ *
+ *  Acknowledgements
+ *
+ *  The following people have made significant contributions to the
+ *  development and testing of this file:
+ *
+ *  Chris Howie
+ *  John Steele Scott
+ *  Dave Thorup
+ *  John Dill
+ *  Florian Wobbe
+ *  Christopher Sean Morrison
+ *  Mikkel Fahnoe Jorgensen
+ *
+ */
+
+#include <stddef.h>
+#include <limits.h>
+#include <signal.h>
+
+/*
+ *  For gcc with _STDINT_H, fill in the PRINTF_INT*_MODIFIER macros, and
+ *  do nothing else.  On the Mac OS X version of gcc this is _STDINT_H_.
+ */
+
+#if ((defined(__SUNPRO_C) && __SUNPRO_C >= 0x570) || (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__STDC__) && __STDC__ && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || (defined (__WATCOMC__) && (defined (_STDINT_H_INCLUDED) || __WATCOMC__ >= 1250)) || (defined(__GNUC__) && (__GNUC__ > 3 || defined(_STDINT_H) || defined(_STDINT_H_) || defined (__UINT_FAST64_TYPE__)) )) && !defined (_PSTDINT_H_INCLUDED)
+#include <stdint.h>
+#define _PSTDINT_H_INCLUDED
+# if defined(__GNUC__) && (defined(__x86_64__) || defined(__ppc64__)) && !(defined(__APPLE__) && defined(__MACH__))
+#  ifndef PRINTF_INT64_MODIFIER
+#   define PRINTF_INT64_MODIFIER "l"
+#  endif
+#  ifndef PRINTF_INT32_MODIFIER
+#   define PRINTF_INT32_MODIFIER ""
+#  endif
+# else
+#  ifndef PRINTF_INT64_MODIFIER
+#   define PRINTF_INT64_MODIFIER "ll"
+#  endif
+#  ifndef PRINTF_INT32_MODIFIER
+#   if (UINT_MAX == UINT32_MAX)
+#    define PRINTF_INT32_MODIFIER ""
+#   else
+#    define PRINTF_INT32_MODIFIER "l"
+#   endif
+#  endif
+# endif
+# ifndef PRINTF_INT16_MODIFIER
+#  define PRINTF_INT16_MODIFIER "h"
+# endif
+# ifndef PRINTF_INTMAX_MODIFIER
+#  define PRINTF_INTMAX_MODIFIER PRINTF_INT64_MODIFIER
+# endif
+# ifndef PRINTF_INT64_HEX_WIDTH
+#  define PRINTF_INT64_HEX_WIDTH "16"
+# endif
+# ifndef PRINTF_UINT64_HEX_WIDTH
+#  define PRINTF_UINT64_HEX_WIDTH "16"
+# endif
+# ifndef PRINTF_INT32_HEX_WIDTH
+#  define PRINTF_INT32_HEX_WIDTH "8"
+# endif
+# ifndef PRINTF_UINT32_HEX_WIDTH
+#  define PRINTF_UINT32_HEX_WIDTH "8"
+# endif
+# ifndef PRINTF_INT16_HEX_WIDTH
+#  define PRINTF_INT16_HEX_WIDTH "4"
+# endif
+# ifndef PRINTF_UINT16_HEX_WIDTH
+#  define PRINTF_UINT16_HEX_WIDTH "4"
+# endif
+# ifndef PRINTF_INT8_HEX_WIDTH
+#  define PRINTF_INT8_HEX_WIDTH "2"
+# endif
+# ifndef PRINTF_UINT8_HEX_WIDTH
+#  define PRINTF_UINT8_HEX_WIDTH "2"
+# endif
+# ifndef PRINTF_INT64_DEC_WIDTH
+#  define PRINTF_INT64_DEC_WIDTH "19"
+# endif
+# ifndef PRINTF_UINT64_DEC_WIDTH
+#  define PRINTF_UINT64_DEC_WIDTH "20"
+# endif
+# ifndef PRINTF_INT32_DEC_WIDTH
+#  define PRINTF_INT32_DEC_WIDTH "10"
+# endif
+# ifndef PRINTF_UINT32_DEC_WIDTH
+#  define PRINTF_UINT32_DEC_WIDTH "10"
+# endif
+# ifndef PRINTF_INT16_DEC_WIDTH
+#  define PRINTF_INT16_DEC_WIDTH "5"
+# endif
+# ifndef PRINTF_UINT16_DEC_WIDTH
+#  define PRINTF_UINT16_DEC_WIDTH "5"
+# endif
+# ifndef PRINTF_INT8_DEC_WIDTH
+#  define PRINTF_INT8_DEC_WIDTH "3"
+# endif
+# ifndef PRINTF_UINT8_DEC_WIDTH
+#  define PRINTF_UINT8_DEC_WIDTH "3"
+# endif
+# ifndef PRINTF_INTMAX_HEX_WIDTH
+#  define PRINTF_INTMAX_HEX_WIDTH PRINTF_UINT64_HEX_WIDTH
+# endif
+# ifndef PRINTF_UINTMAX_HEX_WIDTH
+#  define PRINTF_UINTMAX_HEX_WIDTH PRINTF_UINT64_HEX_WIDTH
+# endif
+# ifndef PRINTF_INTMAX_DEC_WIDTH
+#  define PRINTF_INTMAX_DEC_WIDTH PRINTF_UINT64_DEC_WIDTH
+# endif
+# ifndef PRINTF_UINTMAX_DEC_WIDTH
+#  define PRINTF_UINTMAX_DEC_WIDTH PRINTF_UINT64_DEC_WIDTH
+# endif
+
+/*
+ *  Something really weird is going on with Open Watcom.  Just pull some of
+ *  these duplicated definitions from Open Watcom's stdint.h file for now.
+ */
+
+# if defined (__WATCOMC__) && __WATCOMC__ >= 1250
+#  if !defined (INT64_C)
+#   define INT64_C(x)   (x + (INT64_MAX - INT64_MAX))
+#  endif
+#  if !defined (UINT64_C)
+#   define UINT64_C(x)  (x + (UINT64_MAX - UINT64_MAX))
+#  endif
+#  if !defined (INT32_C)
+#   define INT32_C(x)   (x + (INT32_MAX - INT32_MAX))
+#  endif
+#  if !defined (UINT32_C)
+#   define UINT32_C(x)  (x + (UINT32_MAX - UINT32_MAX))
+#  endif
+#  if !defined (INT16_C)
+#   define INT16_C(x)   (x)
+#  endif
+#  if !defined (UINT16_C)
+#   define UINT16_C(x)  (x)
+#  endif
+#  if !defined (INT8_C)
+#   define INT8_C(x)   (x)
+#  endif
+#  if !defined (UINT8_C)
+#   define UINT8_C(x)  (x)
+#  endif
+#  if !defined (UINT64_MAX)
+#   define UINT64_MAX  18446744073709551615ULL
+#  endif
+#  if !defined (INT64_MAX)
+#   define INT64_MAX  9223372036854775807LL
+#  endif
+#  if !defined (UINT32_MAX)
+#   define UINT32_MAX  4294967295UL
+#  endif
+#  if !defined (INT32_MAX)
+#   define INT32_MAX  2147483647L
+#  endif
+#  if !defined (INTMAX_MAX)
+#   define INTMAX_MAX INT64_MAX
+#  endif
+#  if !defined (INTMAX_MIN)
+#   define INTMAX_MIN INT64_MIN
+#  endif
+# endif
+#endif
+
+/*
+ *  I have no idea what is the truly correct thing to do on older Solaris.
+ *  From some online discussions, this seems to be what is being
+ *  recommended.  For people who actually are developing on older Solaris,
+ *  what I would like to know is, does this define all of the relevant
+ *  macros of a complete stdint.h?  Remember, in pstdint.h 64 bit is
+ *  considered optional.
+ */
+
+#if (defined(__SUNPRO_C) && __SUNPRO_C >= 0x420) && !defined(_PSTDINT_H_INCLUDED)
+#include <sys/inttypes.h>
+#define _PSTDINT_H_INCLUDED
+#endif
+
+#ifndef _PSTDINT_H_INCLUDED
+#define _PSTDINT_H_INCLUDED
+
+#ifndef SIZE_MAX
+# define SIZE_MAX (~(size_t)0)
+#endif
+
+/*
+ *  Deduce the type assignments from limits.h under the assumption that
+ *  integer sizes in bits are powers of 2, and follow the ANSI
+ *  definitions.
+ */
+
+#ifndef UINT8_MAX
+# define UINT8_MAX 0xff
+#endif
+#if !defined(uint8_t) && !defined(_UINT8_T) && !defined(vxWorks)
+# if (UCHAR_MAX == UINT8_MAX) || defined (S_SPLINT_S)
+    typedef unsigned char uint8_t;
+#   define UINT8_C(v) ((uint8_t) v)
+# else
+#   error "Platform not supported"
+# endif
+#endif
+
+#ifndef INT8_MAX
+# define INT8_MAX 0x7f
+#endif
+#ifndef INT8_MIN
+# define INT8_MIN INT8_C(0x80)
+#endif
+#if !defined(int8_t) && !defined(_INT8_T) && !defined(vxWorks)
+# if (SCHAR_MAX == INT8_MAX) || defined (S_SPLINT_S)
+    typedef signed char int8_t;
+#   define INT8_C(v) ((int8_t) v)
+# else
+#   error "Platform not supported"
+# endif
+#endif
+
+#ifndef UINT16_MAX
+# define UINT16_MAX 0xffff
+#endif
+#if !defined(uint16_t) && !defined(_UINT16_T) && !defined(vxWorks)
+#if (UINT_MAX == UINT16_MAX) || defined (S_SPLINT_S)
+  typedef unsigned int uint16_t;
+# ifndef PRINTF_INT16_MODIFIER
+#  define PRINTF_INT16_MODIFIER ""
+# endif
+# define UINT16_C(v) ((uint16_t) (v))
+#elif (USHRT_MAX == UINT16_MAX)
+  typedef unsigned short uint16_t;
+# define UINT16_C(v) ((uint16_t) (v))
+# ifndef PRINTF_INT16_MODIFIER
+#  define PRINTF_INT16_MODIFIER "h"
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+#ifndef INT16_MAX
+# define INT16_MAX 0x7fff
+#endif
+#ifndef INT16_MIN
+# define INT16_MIN INT16_C(0x8000)
+#endif
+#if !defined(int16_t) && !defined(_INT16_T) && !defined(vxWorks)
+#if (INT_MAX == INT16_MAX) || defined (S_SPLINT_S)
+  typedef signed int int16_t;
+# define INT16_C(v) ((int16_t) (v))
+# ifndef PRINTF_INT16_MODIFIER
+#  define PRINTF_INT16_MODIFIER ""
+# endif
+#elif (SHRT_MAX == INT16_MAX)
+  typedef signed short int16_t;
+# define INT16_C(v) ((int16_t) (v))
+# ifndef PRINTF_INT16_MODIFIER
+#  define PRINTF_INT16_MODIFIER "h"
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+#ifndef UINT32_MAX
+# define UINT32_MAX (0xffffffffUL)
+#endif
+#if !defined(uint32_t) && !defined(_UINT32_T) && !defined(vxWorks)
+#if (ULONG_MAX == UINT32_MAX) || defined (S_SPLINT_S)
+  typedef unsigned long uint32_t;
+# define UINT32_C(v) v ## UL
+# ifndef PRINTF_INT32_MODIFIER
+#  define PRINTF_INT32_MODIFIER "l"
+# endif
+#elif (UINT_MAX == UINT32_MAX)
+  typedef unsigned int uint32_t;
+# ifndef PRINTF_INT32_MODIFIER
+#  define PRINTF_INT32_MODIFIER ""
+# endif
+# define UINT32_C(v) v ## U
+#elif (USHRT_MAX == UINT32_MAX)
+  typedef unsigned short uint32_t;
+# define UINT32_C(v) ((unsigned short) (v))
+# ifndef PRINTF_INT32_MODIFIER
+#  define PRINTF_INT32_MODIFIER ""
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+#ifndef INT32_MAX
+# define INT32_MAX (0x7fffffffL)
+#endif
+#ifndef INT32_MIN
+# define INT32_MIN INT32_C(0x80000000)
+#endif
+#if !defined(int32_t) && !defined(_INT32_T) && !defined(vxWorks)
+#if (LONG_MAX == INT32_MAX) || defined (S_SPLINT_S)
+  typedef signed long int32_t;
+# define INT32_C(v) v ## L
+# ifndef PRINTF_INT32_MODIFIER
+#  define PRINTF_INT32_MODIFIER "l"
+# endif
+#elif (INT_MAX == INT32_MAX)
+  typedef signed int int32_t;
+# define INT32_C(v) v
+# ifndef PRINTF_INT32_MODIFIER
+#  define PRINTF_INT32_MODIFIER ""
+# endif
+#elif (SHRT_MAX == INT32_MAX)
+  typedef signed short int32_t;
+# define INT32_C(v) ((short) (v))
+# ifndef PRINTF_INT32_MODIFIER
+#  define PRINTF_INT32_MODIFIER ""
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+/*
+ *  The macro stdint_int64_defined is temporarily used to record
+ *  whether or not 64 integer support is available.  It must be
+ *  defined for any 64 integer extensions for new platforms that are
+ *  added.
+ */
+
+#undef stdint_int64_defined
+#if (defined(__STDC__) && defined(__STDC_VERSION__)) || defined (S_SPLINT_S)
+# if (__STDC__ && __STDC_VERSION__ >= 199901L) || defined (S_SPLINT_S)
+#  define stdint_int64_defined
+   typedef long long int64_t;
+   typedef unsigned long long uint64_t;
+#  define UINT64_C(v) v ## ULL
+#  define  INT64_C(v) v ## LL
+#  ifndef PRINTF_INT64_MODIFIER
+#   define PRINTF_INT64_MODIFIER "ll"
+#  endif
+# endif
+#endif
+
+#if !defined (stdint_int64_defined)
+# if defined(__GNUC__) && !defined(vxWorks)
+#  define stdint_int64_defined
+   __extension__ typedef long long int64_t;
+   __extension__ typedef unsigned long long uint64_t;
+#  define UINT64_C(v) v ## ULL
+#  define  INT64_C(v) v ## LL
+#  ifndef PRINTF_INT64_MODIFIER
+#   define PRINTF_INT64_MODIFIER "ll"
+#  endif
+# elif defined(__MWERKS__) || defined (__SUNPRO_C) || defined (__SUNPRO_CC) || defined (__APPLE_CC__) || defined (_LONG_LONG) || defined (_CRAYC) || defined (S_SPLINT_S)
+#  define stdint_int64_defined
+   typedef long long int64_t;
+   typedef unsigned long long uint64_t;
+#  define UINT64_C(v) v ## ULL
+#  define  INT64_C(v) v ## LL
+#  ifndef PRINTF_INT64_MODIFIER
+#   define PRINTF_INT64_MODIFIER "ll"
+#  endif
+# elif (defined(__WATCOMC__) && defined(__WATCOM_INT64__)) || (defined(_MSC_VER) && _INTEGRAL_MAX_BITS >= 64) || (defined (__BORLANDC__) && __BORLANDC__ > 0x460) || defined (__alpha) || defined (__DECC)
+#  define stdint_int64_defined
+   typedef __int64 int64_t;
+   typedef unsigned __int64 uint64_t;
+#  define UINT64_C(v) v ## UI64
+#  define  INT64_C(v) v ## I64
+#  ifndef PRINTF_INT64_MODIFIER
+#   define PRINTF_INT64_MODIFIER "I64"
+#  endif
+# endif
+#endif
+
+#if !defined (LONG_LONG_MAX) && defined (INT64_C)
+# define LONG_LONG_MAX INT64_C (9223372036854775807)
+#endif
+#ifndef ULONG_LONG_MAX
+# define ULONG_LONG_MAX UINT64_C (18446744073709551615)
+#endif
+
+#if !defined (INT64_MAX) && defined (INT64_C)
+# define INT64_MAX INT64_C (9223372036854775807)
+#endif
+#if !defined (INT64_MIN) && defined (INT64_C)
+# define INT64_MIN INT64_C (-9223372036854775808)
+#endif
+#if !defined (UINT64_MAX) && defined (INT64_C)
+# define UINT64_MAX UINT64_C (18446744073709551615)
+#endif
+
+/*
+ *  Width of hexadecimal for number field.
+ */
+
+#ifndef PRINTF_INT64_HEX_WIDTH
+# define PRINTF_INT64_HEX_WIDTH "16"
+#endif
+#ifndef PRINTF_INT32_HEX_WIDTH
+# define PRINTF_INT32_HEX_WIDTH "8"
+#endif
+#ifndef PRINTF_INT16_HEX_WIDTH
+# define PRINTF_INT16_HEX_WIDTH "4"
+#endif
+#ifndef PRINTF_INT8_HEX_WIDTH
+# define PRINTF_INT8_HEX_WIDTH "2"
+#endif
+#ifndef PRINTF_INT64_DEC_WIDTH
+# define PRINTF_INT64_DEC_WIDTH "19"
+#endif
+#ifndef PRINTF_INT32_DEC_WIDTH
+# define PRINTF_INT32_DEC_WIDTH "10"
+#endif
+#ifndef PRINTF_INT16_DEC_WIDTH
+# define PRINTF_INT16_DEC_WIDTH "5"
+#endif
+#ifndef PRINTF_INT8_DEC_WIDTH
+# define PRINTF_INT8_DEC_WIDTH "3"
+#endif
+#ifndef PRINTF_UINT64_DEC_WIDTH
+# define PRINTF_UINT64_DEC_WIDTH "20"
+#endif
+#ifndef PRINTF_UINT32_DEC_WIDTH
+# define PRINTF_UINT32_DEC_WIDTH "10"
+#endif
+#ifndef PRINTF_UINT16_DEC_WIDTH
+# define PRINTF_UINT16_DEC_WIDTH "5"
+#endif
+#ifndef PRINTF_UINT8_DEC_WIDTH
+# define PRINTF_UINT8_DEC_WIDTH "3"
+#endif
+
+/*
+ *  Ok, lets not worry about 128 bit integers for now.  Moore's law says
+ *  we don't need to worry about that until about 2040 at which point
+ *  we'll have bigger things to worry about.
+ */
+
+#ifdef stdint_int64_defined
+  typedef int64_t intmax_t;
+  typedef uint64_t uintmax_t;
+# define  INTMAX_MAX   INT64_MAX
+# define  INTMAX_MIN   INT64_MIN
+# define UINTMAX_MAX  UINT64_MAX
+# define UINTMAX_C(v) UINT64_C(v)
+# define  INTMAX_C(v)  INT64_C(v)
+# ifndef PRINTF_INTMAX_MODIFIER
+#   define PRINTF_INTMAX_MODIFIER PRINTF_INT64_MODIFIER
+# endif
+# ifndef PRINTF_INTMAX_HEX_WIDTH
+#  define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT64_HEX_WIDTH
+# endif
+# ifndef PRINTF_INTMAX_DEC_WIDTH
+#  define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT64_DEC_WIDTH
+# endif
+#else
+  typedef int32_t intmax_t;
+  typedef uint32_t uintmax_t;
+# define  INTMAX_MAX   INT32_MAX
+# define UINTMAX_MAX  UINT32_MAX
+# define UINTMAX_C(v) UINT32_C(v)
+# define  INTMAX_C(v)  INT32_C(v)
+# ifndef PRINTF_INTMAX_MODIFIER
+#   define PRINTF_INTMAX_MODIFIER PRINTF_INT32_MODIFIER
+# endif
+# ifndef PRINTF_INTMAX_HEX_WIDTH
+#  define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT32_HEX_WIDTH
+# endif
+# ifndef PRINTF_INTMAX_DEC_WIDTH
+#  define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT32_DEC_WIDTH
+# endif
+#endif
+
+/*
+ *  Because this file currently only supports platforms which have
+ *  precise powers of 2 as bit sizes for the default integers, the
+ *  least definitions are all trivial.  Its possible that a future
+ *  version of this file could have different definitions.
+ */
+
+#ifndef stdint_least_defined
+  typedef   int8_t   int_least8_t;
+  typedef  uint8_t  uint_least8_t;
+  typedef  int16_t  int_least16_t;
+  typedef uint16_t uint_least16_t;
+  typedef  int32_t  int_least32_t;
+  typedef uint32_t uint_least32_t;
+# define PRINTF_LEAST32_MODIFIER PRINTF_INT32_MODIFIER
+# define PRINTF_LEAST16_MODIFIER PRINTF_INT16_MODIFIER
+# define  UINT_LEAST8_MAX  UINT8_MAX
+# define   INT_LEAST8_MAX   INT8_MAX
+# define UINT_LEAST16_MAX UINT16_MAX
+# define  INT_LEAST16_MAX  INT16_MAX
+# define UINT_LEAST32_MAX UINT32_MAX
+# define  INT_LEAST32_MAX  INT32_MAX
+# define   INT_LEAST8_MIN   INT8_MIN
+# define  INT_LEAST16_MIN  INT16_MIN
+# define  INT_LEAST32_MIN  INT32_MIN
+# ifdef stdint_int64_defined
+    typedef  int64_t  int_least64_t;
+    typedef uint64_t uint_least64_t;
+#   define PRINTF_LEAST64_MODIFIER PRINTF_INT64_MODIFIER
+#   define UINT_LEAST64_MAX UINT64_MAX
+#   define  INT_LEAST64_MAX  INT64_MAX
+#   define  INT_LEAST64_MIN  INT64_MIN
+# endif
+#endif
+#undef stdint_least_defined
+
+/*
+ *  The ANSI C committee pretending to know or specify anything about
+ *  performance is the epitome of misguided arrogance.  The mandate of
+ *  this file is to *ONLY* ever support that absolute minimum
+ *  definition of the fast integer types, for compatibility purposes.
+ *  No extensions, and no attempt to suggest what may or may not be a
+ *  faster integer type will ever be made in this file.  Developers are
+ *  warned to stay away from these types when using this or any other
+ *  stdint.h.
+ */
+
+typedef   int_least8_t   int_fast8_t;
+typedef  uint_least8_t  uint_fast8_t;
+typedef  int_least16_t  int_fast16_t;
+typedef uint_least16_t uint_fast16_t;
+typedef  int_least32_t  int_fast32_t;
+typedef uint_least32_t uint_fast32_t;
+#define  UINT_FAST8_MAX  UINT_LEAST8_MAX
+#define   INT_FAST8_MAX   INT_LEAST8_MAX
+#define UINT_FAST16_MAX UINT_LEAST16_MAX
+#define  INT_FAST16_MAX  INT_LEAST16_MAX
+#define UINT_FAST32_MAX UINT_LEAST32_MAX
+#define  INT_FAST32_MAX  INT_LEAST32_MAX
+#define   INT_FAST8_MIN   INT_LEAST8_MIN
+#define  INT_FAST16_MIN  INT_LEAST16_MIN
+#define  INT_FAST32_MIN  INT_LEAST32_MIN
+#ifdef stdint_int64_defined
+  typedef  int_least64_t  int_fast64_t;
+  typedef uint_least64_t uint_fast64_t;
+# define UINT_FAST64_MAX UINT_LEAST64_MAX
+# define  INT_FAST64_MAX  INT_LEAST64_MAX
+# define  INT_FAST64_MIN  INT_LEAST64_MIN
+#endif
+
+#undef stdint_int64_defined
+
+/*
+ *  Whatever piecemeal, per compiler thing we can do about the wchar_t
+ *  type limits.
+ */
+
+#if defined(__WATCOMC__) || defined(_MSC_VER) || defined (__GNUC__) && !defined(vxWorks)
+# include <wchar.h>
+# ifndef WCHAR_MIN
+#  define WCHAR_MIN 0
+# endif
+# ifndef WCHAR_MAX
+#  define WCHAR_MAX ((wchar_t)-1)
+# endif
+#endif
+
+/*
+ *  Whatever piecemeal, per compiler/platform thing we can do about the
+ *  (u)intptr_t types and limits.
+ */
+
+#if (defined (_MSC_VER) && defined (_UINTPTR_T_DEFINED)) || defined (_UINTPTR_T)
+# define STDINT_H_UINTPTR_T_DEFINED
+#endif
+
+#ifndef STDINT_H_UINTPTR_T_DEFINED
+# if defined (__alpha__) || defined (__ia64__) || defined (__x86_64__) || defined (_WIN64) || defined (__ppc64__)
+#  define stdint_intptr_bits 64
+# elif defined (__WATCOMC__) || defined (__TURBOC__)
+#  if defined(__TINY__) || defined(__SMALL__) || defined(__MEDIUM__)
+#    define stdint_intptr_bits 16
+#  else
+#    define stdint_intptr_bits 32
+#  endif
+# elif defined (__i386__) || defined (_WIN32) || defined (WIN32) || defined (__ppc64__)
+#  define stdint_intptr_bits 32
+# elif defined (__INTEL_COMPILER)
+/* TODO -- what did Intel do about x86-64? */
+# else
+/* #error "This platform might not be supported yet" */
+# endif
+
+# ifdef stdint_intptr_bits
+#  define stdint_intptr_glue3_i(a,b,c)  a##b##c
+#  define stdint_intptr_glue3(a,b,c)    stdint_intptr_glue3_i(a,b,c)
+#  ifndef PRINTF_INTPTR_MODIFIER
+#    define PRINTF_INTPTR_MODIFIER      stdint_intptr_glue3(PRINTF_INT,stdint_intptr_bits,_MODIFIER)
+#  endif
+#  ifndef PTRDIFF_MAX
+#    define PTRDIFF_MAX                 stdint_intptr_glue3(INT,stdint_intptr_bits,_MAX)
+#  endif
+#  ifndef PTRDIFF_MIN
+#    define PTRDIFF_MIN                 stdint_intptr_glue3(INT,stdint_intptr_bits,_MIN)
+#  endif
+#  ifndef UINTPTR_MAX
+#    define UINTPTR_MAX                 stdint_intptr_glue3(UINT,stdint_intptr_bits,_MAX)
+#  endif
+#  ifndef INTPTR_MAX
+#    define INTPTR_MAX                  stdint_intptr_glue3(INT,stdint_intptr_bits,_MAX)
+#  endif
+#  ifndef INTPTR_MIN
+#    define INTPTR_MIN                  stdint_intptr_glue3(INT,stdint_intptr_bits,_MIN)
+#  endif
+#  ifndef INTPTR_C
+#    define INTPTR_C(x)                 stdint_intptr_glue3(INT,stdint_intptr_bits,_C)(x)
+#  endif
+#  ifndef UINTPTR_C
+#    define UINTPTR_C(x)                stdint_intptr_glue3(UINT,stdint_intptr_bits,_C)(x)
+#  endif
+  typedef stdint_intptr_glue3(uint,stdint_intptr_bits,_t) uintptr_t;
+  typedef stdint_intptr_glue3( int,stdint_intptr_bits,_t)  intptr_t;
+# else
+/* TODO -- This following is likely wrong for some platforms, and does
+   nothing for the definition of uintptr_t. */
+  typedef ptrdiff_t intptr_t;
+# endif
+# define STDINT_H_UINTPTR_T_DEFINED
+#endif
+
+/*
+ *  Assumes sig_atomic_t is signed and we have a 2s complement machine.
+ */
+
+#ifndef SIG_ATOMIC_MAX
+# define SIG_ATOMIC_MAX ((((sig_atomic_t) 1) << (sizeof (sig_atomic_t)*CHAR_BIT-1)) - 1)
+#endif
+
+#endif
+
+#if defined (__TEST_PSTDINT_FOR_CORRECTNESS)
+
+/*
+ *  Please compile with the maximum warning settings to make sure macros are
+ *  not defined more than once.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define glue3_aux(x,y,z) x ## y ## z
+#define glue3(x,y,z) glue3_aux(x,y,z)
+
+#define DECLU(bits) glue3(uint,bits,_t) glue3(u,bits,) = glue3(UINT,bits,_C) (0);
+#define DECLI(bits) glue3(int,bits,_t) glue3(i,bits,) = glue3(INT,bits,_C) (0);
+
+#define DECL(us,bits) glue3(DECL,us,) (bits)
+
+#define TESTUMAX(bits) glue3(u,bits,) = ~glue3(u,bits,); if (glue3(UINT,bits,_MAX) != glue3(u,bits,)) printf ("Something wrong with UINT%d_MAX\n", bits)
+
+#define REPORTERROR(msg) { err_n++; if (err_first <= 0) err_first = __LINE__; printf msg; }
+
+int main () {
+	int err_n = 0;
+	int err_first = 0;
+	DECL(I,8)
+	DECL(U,8)
+	DECL(I,16)
+	DECL(U,16)
+	DECL(I,32)
+	DECL(U,32)
+#ifdef INT64_MAX
+	DECL(I,64)
+	DECL(U,64)
+#endif
+	intmax_t imax = INTMAX_C(0);
+	uintmax_t umax = UINTMAX_C(0);
+	char str0[256], str1[256];
+
+	sprintf (str0, "%" PRINTF_INT32_MODIFIER "d", INT32_C(2147483647));
+	if (0 != strcmp (str0, "2147483647")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str0));
+	if (atoi(PRINTF_INT32_DEC_WIDTH) != (int) strlen(str0)) REPORTERROR (("Something wrong with PRINTF_INT32_DEC_WIDTH : %s\n", PRINTF_INT32_DEC_WIDTH));
+	sprintf (str0, "%" PRINTF_INT32_MODIFIER "u", UINT32_C(4294967295));
+	if (0 != strcmp (str0, "4294967295")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str0));
+	if (atoi(PRINTF_UINT32_DEC_WIDTH) != (int) strlen(str0)) REPORTERROR (("Something wrong with PRINTF_UINT32_DEC_WIDTH : %s\n", PRINTF_UINT32_DEC_WIDTH));
+#ifdef INT64_MAX
+	sprintf (str1, "%" PRINTF_INT64_MODIFIER "d", INT64_C(9223372036854775807));
+	if (0 != strcmp (str1, "9223372036854775807")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str1));
+	if (atoi(PRINTF_INT64_DEC_WIDTH) != (int) strlen(str1)) REPORTERROR (("Something wrong with PRINTF_INT64_DEC_WIDTH : %s, %d\n", PRINTF_INT64_DEC_WIDTH, (int) strlen(str1)));
+	sprintf (str1, "%" PRINTF_INT64_MODIFIER "u", UINT64_C(18446744073709550591));
+	if (0 != strcmp (str1, "18446744073709550591")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str1));
+	if (atoi(PRINTF_UINT64_DEC_WIDTH) != (int) strlen(str1)) REPORTERROR (("Something wrong with PRINTF_UINT64_DEC_WIDTH : %s, %d\n", PRINTF_UINT64_DEC_WIDTH, (int) strlen(str1)));
+#endif
+
+	sprintf (str0, "%d %x\n", 0, ~0);
+
+	sprintf (str1, "%d %x\n",  i8, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i8 : %s\n", str1));
+	sprintf (str1, "%u %x\n",  u8, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with u8 : %s\n", str1));
+	sprintf (str1, "%d %x\n",  i16, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i16 : %s\n", str1));
+	sprintf (str1, "%u %x\n",  u16, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with u16 : %s\n", str1));
+	sprintf (str1, "%" PRINTF_INT32_MODIFIER "d %x\n",  i32, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i32 : %s\n", str1));
+	sprintf (str1, "%" PRINTF_INT32_MODIFIER "u %x\n",  u32, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with u32 : %s\n", str1));
+#ifdef INT64_MAX
+	sprintf (str1, "%" PRINTF_INT64_MODIFIER "d %x\n",  i64, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i64 : %s\n", str1));
+#endif
+	sprintf (str1, "%" PRINTF_INTMAX_MODIFIER "d %x\n",  imax, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with imax : %s\n", str1));
+	sprintf (str1, "%" PRINTF_INTMAX_MODIFIER "u %x\n",  umax, ~0);
+	if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with umax : %s\n", str1));
+
+	TESTUMAX(8);
+	TESTUMAX(16);
+	TESTUMAX(32);
+#ifdef INT64_MAX
+	TESTUMAX(64);
+#endif
+
+#define STR(v) #v
+#define Q(v) printf ("sizeof " STR(v) " = %u\n", (unsigned) sizeof (v));
+	if (err_n) {
+		printf ("pstdint.h is not correct.  Please use sizes below to correct it:\n");
+	}
+
+	Q(int)
+	Q(unsigned)
+	Q(long int)
+	Q(short int)
+	Q(int8_t)
+	Q(int16_t)
+	Q(int32_t)
+#ifdef INT64_MAX
+	Q(int64_t)
+#endif
+
+	return EXIT_SUCCESS;
+}
+
+#endif
diff --git a/thirdparty/assimp/include/assimp/Compiler/pushpack1.h b/thirdparty/assimp/include/assimp/Compiler/pushpack1.h
new file mode 100644
index 0000000000..4c9fbb857f
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Compiler/pushpack1.h
@@ -0,0 +1,43 @@
+
+
+// ===============================================================================
+// May be included multiple times - sets structure packing to 1 
+// for all supported compilers. #include <poppack1.h> reverts the changes.
+//
+// Currently this works on the following compilers:
+// MSVC 7,8,9
+// GCC
+// BORLAND (complains about 'pack state changed but not reverted', but works)
+// Clang
+//
+//
+// USAGE:
+//
+// struct StructToBePacked {
+// } PACK_STRUCT;
+//
+// ===============================================================================
+
+#ifdef AI_PUSHPACK_IS_DEFINED
+#	error poppack1.h must be included after pushpack1.h
+#endif
+
+#if defined(_MSC_VER) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
+#	pragma pack(push,1)
+#	define PACK_STRUCT
+#elif defined( __GNUC__ ) || defined(__clang__)
+#	if !defined(HOST_MINGW)
+#		define PACK_STRUCT	__attribute__((__packed__))
+#	else
+#		define PACK_STRUCT	__attribute__((gcc_struct, __packed__))
+#	endif
+#else
+#	error Compiler not supported
+#endif
+
+#if defined(_MSC_VER)
+// C4103: Packing was changed after the inclusion of the header, probably missing #pragma pop
+#	pragma warning (disable : 4103) 
+#endif
+
+#define AI_PUSHPACK_IS_DEFINED
diff --git a/thirdparty/assimp/include/assimp/CreateAnimMesh.h b/thirdparty/assimp/include/assimp/CreateAnimMesh.h
new file mode 100644
index 0000000000..a60173588f
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/CreateAnimMesh.h
@@ -0,0 +1,58 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file CreateAnimMesh.h
+ *  Create AnimMesh from Mesh
+ */
+#ifndef INCLUDED_AI_CREATE_ANIM_MESH_H
+#define INCLUDED_AI_CREATE_ANIM_MESH_H
+
+#include <assimp/mesh.h>
+
+namespace Assimp    {
+
+/** Create aiAnimMesh from aiMesh. */
+ASSIMP_API aiAnimMesh *aiCreateAnimMesh(const aiMesh *mesh);
+
+} // end of namespace Assimp
+#endif // INCLUDED_AI_CREATE_ANIM_MESH_H
+
diff --git a/thirdparty/assimp/include/assimp/DefaultIOStream.h b/thirdparty/assimp/include/assimp/DefaultIOStream.h
new file mode 100644
index 0000000000..994d728ff5
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/DefaultIOStream.h
@@ -0,0 +1,140 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Default file I/O using fXXX()-family of functions */
+#ifndef AI_DEFAULTIOSTREAM_H_INC
+#define AI_DEFAULTIOSTREAM_H_INC
+
+#include <stdio.h>
+#include <assimp/IOStream.hpp>
+#include <assimp/importerdesc.h>
+#include <assimp/Defines.h>
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+//! @class  DefaultIOStream
+//! @brief  Default IO implementation, use standard IO operations
+//! @note   An instance of this class can exist without a valid file handle
+//!         attached to it. All calls fail, but the instance can nevertheless be
+//!         used with no restrictions.
+class ASSIMP_API DefaultIOStream : public IOStream
+{
+    friend class DefaultIOSystem;
+#if __ANDROID__
+# if __ANDROID_API__ > 9
+#  if defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+    friend class AndroidJNIIOSystem;
+#  endif // defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+# endif // __ANDROID_API__ > 9
+#endif // __ANDROID__
+
+protected:
+    DefaultIOStream() AI_NO_EXCEPT;
+    DefaultIOStream(FILE* pFile, const std::string &strFilename);
+
+public:
+    /** Destructor public to allow simple deletion to close the file. */
+    ~DefaultIOStream ();
+
+    // -------------------------------------------------------------------
+    /// Read from stream
+    size_t Read(void* pvBuffer,
+        size_t pSize,
+        size_t pCount);
+
+
+    // -------------------------------------------------------------------
+    /// Write to stream
+    size_t Write(const void* pvBuffer,
+        size_t pSize,
+        size_t pCount);
+
+    // -------------------------------------------------------------------
+    /// Seek specific position
+    aiReturn Seek(size_t pOffset,
+        aiOrigin pOrigin);
+
+    // -------------------------------------------------------------------
+    /// Get current seek position
+    size_t Tell() const;
+
+    // -------------------------------------------------------------------
+    /// Get size of file
+    size_t FileSize() const;
+
+    // -------------------------------------------------------------------
+    /// Flush file contents
+    void Flush();
+
+private:
+    //  File data-structure, using clib
+    FILE* mFile;
+    //  Filename
+    std::string mFilename;
+    // Cached file size
+    mutable size_t mCachedSize;
+};
+
+// ----------------------------------------------------------------------------------
+inline
+DefaultIOStream::DefaultIOStream() AI_NO_EXCEPT
+: mFile(nullptr)
+, mFilename("")
+, mCachedSize(SIZE_MAX) {
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline
+DefaultIOStream::DefaultIOStream (FILE* pFile, const std::string &strFilename)
+: mFile(pFile)
+, mFilename(strFilename)
+, mCachedSize(SIZE_MAX) {
+    // empty
+}
+// ----------------------------------------------------------------------------------
+
+} // ns assimp
+
+#endif //!!AI_DEFAULTIOSTREAM_H_INC
+
diff --git a/thirdparty/assimp/include/assimp/DefaultIOSystem.h b/thirdparty/assimp/include/assimp/DefaultIOSystem.h
new file mode 100644
index 0000000000..2dd5c801b5
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/DefaultIOSystem.h
@@ -0,0 +1,93 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Default implementation of IOSystem using the standard C file functions */
+#ifndef AI_DEFAULTIOSYSTEM_H_INC
+#define AI_DEFAULTIOSYSTEM_H_INC
+
+#include <assimp/IOSystem.hpp>
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** Default implementation of IOSystem using the standard C file functions */
+class ASSIMP_API DefaultIOSystem : public IOSystem {
+public:
+    // -------------------------------------------------------------------
+    /** Tests for the existence of a file at the given path. */
+    bool Exists( const char* pFile) const;
+
+    // -------------------------------------------------------------------
+    /** Returns the directory separator. */
+    char getOsSeparator() const;
+
+    // -------------------------------------------------------------------
+    /** Open a new file with a given path. */
+    IOStream* Open( const char* pFile, const char* pMode = "rb");
+
+    // -------------------------------------------------------------------
+    /** Closes the given file and releases all resources associated with it. */
+    void Close( IOStream* pFile);
+
+    // -------------------------------------------------------------------
+    /** Compare two paths */
+    bool ComparePaths (const char* one, const char* second) const;
+
+    /** @brief get the file name of a full filepath
+     * example: /tmp/archive.tar.gz -> archive.tar.gz
+     */
+    static std::string fileName( const std::string &path );
+
+    /** @brief get the complete base name of a full filepath
+     * example: /tmp/archive.tar.gz -> archive.tar
+     */
+    static std::string completeBaseName( const std::string &path);
+
+    /** @brief get the path of a full filepath
+     * example: /tmp/archive.tar.gz -> /tmp/
+     */
+    static std::string absolutePath( const std::string &path);
+};
+
+} //!ns Assimp
+
+#endif //AI_DEFAULTIOSYSTEM_H_INC
diff --git a/thirdparty/assimp/include/assimp/DefaultLogger.hpp b/thirdparty/assimp/include/assimp/DefaultLogger.hpp
new file mode 100644
index 0000000000..1946e250a6
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/DefaultLogger.hpp
@@ -0,0 +1,188 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+/** @file DefaultLogger.hpp
+*/
+
+#ifndef INCLUDED_AI_DEFAULTLOGGER
+#define INCLUDED_AI_DEFAULTLOGGER
+
+#include "Logger.hpp"
+#include "LogStream.hpp"
+#include "NullLogger.hpp"
+#include <vector>
+
+namespace Assimp    {
+// ------------------------------------------------------------------------------------
+class IOStream;
+struct LogStreamInfo;
+
+/** default name of logfile */
+#define ASSIMP_DEFAULT_LOG_NAME "AssimpLog.txt"
+
+// ------------------------------------------------------------------------------------
+/** @brief CPP-API: Primary logging facility of Assimp.
+ *
+ *  The library stores its primary #Logger as a static member of this class.
+ *  #get() returns this primary logger. By default the underlying implementation is
+ *  just a #NullLogger which rejects all log messages. By calling #create(), logging
+ *  is turned on. To capture the log output multiple log streams (#LogStream) can be
+ *  attach to the logger. Some default streams for common streaming locations (such as
+ *  a file, std::cout, OutputDebugString()) are also provided.
+ *
+ *  If you wish to customize the logging at an even deeper level supply your own
+ *  implementation of #Logger to #set().
+ *  @note The whole logging stuff causes a small extra overhead for all imports. */
+class ASSIMP_API DefaultLogger :
+    public Logger   {
+
+public:
+
+    // ----------------------------------------------------------------------
+    /** @brief Creates a logging instance.
+     *  @param name Name for log file. Only valid in combination
+     *    with the aiDefaultLogStream_FILE flag.
+     *  @param severity Log severity, VERBOSE turns on debug messages
+     *  @param defStreams  Default log streams to be attached. Any bitwise
+     *    combination of the aiDefaultLogStream enumerated values.
+     *    If #aiDefaultLogStream_FILE is specified but an empty string is
+     *    passed for 'name', no log file is created at all.
+     *  @param  io IOSystem to be used to open external files (such as the
+     *   log file). Pass NULL to rely on the default implementation.
+     *  This replaces the default #NullLogger with a #DefaultLogger instance. */
+    static Logger *create(const char* name = ASSIMP_DEFAULT_LOG_NAME,
+        LogSeverity severity    = NORMAL,
+        unsigned int defStreams = aiDefaultLogStream_DEBUGGER | aiDefaultLogStream_FILE,
+        IOSystem* io            = NULL);
+
+    // ----------------------------------------------------------------------
+    /** @brief Setup a custom #Logger implementation.
+     *
+     *  Use this if the provided #DefaultLogger class doesn't fit into
+     *  your needs. If the provided message formatting is OK for you,
+     *  it's much easier to use #create() and to attach your own custom
+     *  output streams to it.
+     *  @param logger Pass NULL to setup a default NullLogger*/
+    static void set (Logger *logger);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Getter for singleton instance
+     *   @return Only instance. This is never null, but it could be a
+     *  NullLogger. Use isNullLogger to check this.*/
+    static Logger *get();
+
+    // ----------------------------------------------------------------------
+    /** @brief  Return whether a #NullLogger is currently active
+     *  @return true if the current logger is a #NullLogger.
+     *  Use create() or set() to setup a logger that does actually do
+     *  something else than just rejecting all log messages. */
+    static bool isNullLogger();
+
+    // ----------------------------------------------------------------------
+    /** @brief  Kills the current singleton logger and replaces it with a
+     *  #NullLogger instance. */
+    static void kill();
+
+    // ----------------------------------------------------------------------
+    /** @copydoc Logger::attachStream   */
+    bool attachStream(LogStream *pStream,
+        unsigned int severity);
+
+    // ----------------------------------------------------------------------
+    /** @copydoc Logger::detatchStream */
+    bool detatchStream(LogStream *pStream,
+        unsigned int severity);
+
+private:
+    // ----------------------------------------------------------------------
+    /** @briefPrivate construction for internal use by create().
+     *  @param severity Logging granularity  */
+    explicit DefaultLogger(LogSeverity severity);
+
+    // ----------------------------------------------------------------------
+    /** @briefDestructor    */
+    ~DefaultLogger();
+
+    /** @brief  Logs debug infos, only been written when severity level VERBOSE is set */
+    void OnDebug(const char* message);
+
+    /** @brief  Logs an info message */
+    void OnInfo(const char*  message);
+
+    /** @brief  Logs a warning message */
+    void OnWarn(const char*  message);
+
+    /** @brief  Logs an error message */
+    void OnError(const char* message);
+
+    // ----------------------------------------------------------------------
+    /** @brief Writes a message to all streams */
+    void WriteToStreams(const char* message, ErrorSeverity ErrorSev );
+
+    // ----------------------------------------------------------------------
+    /** @brief Returns the thread id.
+     *  @note This is an OS specific feature, if not supported, a
+     *    zero will be returned.
+     */
+    unsigned int GetThreadID();
+
+private:
+    //  Aliases for stream container
+    typedef std::vector<LogStreamInfo*> StreamArray;
+    typedef std::vector<LogStreamInfo*>::iterator StreamIt;
+    typedef std::vector<LogStreamInfo*>::const_iterator ConstStreamIt;
+
+    //! only logging instance
+    static Logger *m_pLogger;
+    static NullLogger s_pNullLogger;
+
+    //! Attached streams
+    StreamArray m_StreamArray;
+
+    bool noRepeatMsg;
+    char lastMsg[MAX_LOG_MESSAGE_LENGTH*2];
+    size_t lastLen;
+};
+// ------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // !! INCLUDED_AI_DEFAULTLOGGER
diff --git a/thirdparty/assimp/include/assimp/Defines.h b/thirdparty/assimp/include/assimp/Defines.h
new file mode 100644
index 0000000000..15e1d83c26
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Defines.h
@@ -0,0 +1,49 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2012, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+// We need those constants, workaround for any platforms where nobody defined them yet
+#if (!defined SIZE_MAX)
+#   define SIZE_MAX (~((size_t)0))
+#endif
+
+#if (!defined UINT_MAX)
+#   define UINT_MAX (~((unsigned int)0))
+#endif
+
diff --git a/thirdparty/assimp/include/assimp/Exceptional.h b/thirdparty/assimp/include/assimp/Exceptional.h
new file mode 100644
index 0000000000..5109b8f077
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Exceptional.h
@@ -0,0 +1,125 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2008, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef INCLUDED_EXCEPTIONAL_H
+#define INCLUDED_EXCEPTIONAL_H
+
+#include <stdexcept>
+#include <assimp/DefaultIOStream.h>
+using std::runtime_error;
+
+#ifdef _MSC_VER
+#   pragma warning(disable : 4275)
+#endif
+
+// ---------------------------------------------------------------------------
+/** FOR IMPORTER PLUGINS ONLY: Simple exception class to be thrown if an
+ *  unrecoverable error occurs while importing. Loading APIs return
+ *  NULL instead of a valid aiScene then.  */
+class DeadlyImportError
+    : public runtime_error
+{
+public:
+    /** Constructor with arguments */
+    explicit DeadlyImportError( const std::string& errorText)
+        : runtime_error(errorText)
+    {
+    }
+
+private:
+};
+
+typedef DeadlyImportError DeadlyExportError;
+
+#ifdef _MSC_VER
+#   pragma warning(default : 4275)
+#endif
+
+// ---------------------------------------------------------------------------
+template <typename T>
+struct ExceptionSwallower   {
+    T operator ()() const {
+        return T();
+    }
+};
+
+// ---------------------------------------------------------------------------
+template <typename T>
+struct ExceptionSwallower<T*>   {
+    T* operator ()() const {
+        return NULL;
+    }
+};
+
+// ---------------------------------------------------------------------------
+template <>
+struct ExceptionSwallower<aiReturn> {
+    aiReturn operator ()() const {
+        try {
+            throw;
+        }
+        catch (std::bad_alloc&) {
+            return aiReturn_OUTOFMEMORY;
+        }
+        catch (...) {
+            return aiReturn_FAILURE;
+        }
+    }
+};
+
+// ---------------------------------------------------------------------------
+template <>
+struct ExceptionSwallower<void> {
+    void operator ()() const {
+        return;
+    }
+};
+
+#define ASSIMP_BEGIN_EXCEPTION_REGION()\
+{\
+    try {
+
+#define ASSIMP_END_EXCEPTION_REGION(type)\
+    } catch(...) {\
+        return ExceptionSwallower<type>()();\
+    }\
+}
+
+#endif // INCLUDED_EXCEPTIONAL_H
diff --git a/thirdparty/assimp/include/assimp/Exporter.hpp b/thirdparty/assimp/include/assimp/Exporter.hpp
new file mode 100644
index 0000000000..bf0096e7e9
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Exporter.hpp
@@ -0,0 +1,505 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  Exporter.hpp
+*  @brief Defines the CPP-API for the Assimp export interface
+*/
+#pragma once
+#ifndef AI_EXPORT_HPP_INC
+#define AI_EXPORT_HPP_INC
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+#include "cexport.h"
+#include <map>
+
+namespace Assimp {
+    
+class ExporterPimpl;
+class IOSystem;
+class ProgressHandler;
+
+// ----------------------------------------------------------------------------------
+/** CPP-API: The Exporter class forms an C++ interface to the export functionality
+ * of the Open Asset Import Library. Note that the export interface is available
+ * only if Assimp has been built with ASSIMP_BUILD_NO_EXPORT not defined.
+ *
+ * The interface is modeled after the importer interface and mostly
+ * symmetric. The same rules for threading etc. apply.
+ *
+ * In a nutshell, there are two export interfaces: #Export, which writes the
+ * output file(s) either to the regular file system or to a user-supplied
+ * #IOSystem, and #ExportToBlob which returns a linked list of memory
+ * buffers (blob), each referring to one output file (in most cases
+ * there will be only one output file of course, but this extra complexity is
+ * needed since Assimp aims at supporting a wide range of file formats).
+ *
+ * #ExportToBlob is especially useful if you intend to work
+ * with the data in-memory.
+*/
+class ASSIMP_API ExportProperties;
+
+class ASSIMP_API Exporter {
+public:
+    /** Function pointer type of a Export worker function */
+    typedef void (*fpExportFunc)(const char*, IOSystem*, const aiScene*, const ExportProperties*);
+
+    /** Internal description of an Assimp export format option */
+    struct ExportFormatEntry {
+        /// Public description structure to be returned by aiGetExportFormatDescription()
+        aiExportFormatDesc mDescription;
+
+        // Worker function to do the actual exporting
+        fpExportFunc mExportFunction;
+
+        // Post-processing steps to be executed PRIOR to invoking mExportFunction
+        unsigned int mEnforcePP;
+
+        // Constructor to fill all entries
+        ExportFormatEntry( const char* pId, const char* pDesc, const char* pExtension, fpExportFunc pFunction, unsigned int pEnforcePP = 0u)
+        {
+            mDescription.id = pId;
+            mDescription.description = pDesc;
+            mDescription.fileExtension = pExtension;
+            mExportFunction = pFunction;
+            mEnforcePP = pEnforcePP;
+        }
+
+        ExportFormatEntry() :
+            mExportFunction()
+          , mEnforcePP()
+        {
+            mDescription.id = NULL;
+            mDescription.description = NULL;
+            mDescription.fileExtension = NULL;
+        }
+    };
+
+    /**
+     *  @brief  The class constructor.
+     */
+    Exporter();
+
+    /**
+    *  @brief  The class destructor.
+    */
+    ~Exporter();
+
+    // -------------------------------------------------------------------
+    /** Supplies a custom IO handler to the exporter to use to open and
+     * access files.
+     *
+     * If you need #Export to use custom IO logic to access the files,
+     * you need to supply a custom implementation of IOSystem and
+     * IOFile to the exporter.
+     *
+     * #Exporter takes ownership of the object and will destroy it
+     * afterwards. The previously assigned handler will be deleted.
+     * Pass NULL to take again ownership of your IOSystem and reset Assimp
+     * to use its default implementation, which uses plain file IO.
+     *
+     * @param pIOHandler The IO handler to be used in all file accesses
+     *   of the Importer. */
+    void SetIOHandler( IOSystem* pIOHandler);
+
+    // -------------------------------------------------------------------
+    /** Retrieves the IO handler that is currently set.
+     * You can use #IsDefaultIOHandler() to check whether the returned
+     * interface is the default IO handler provided by ASSIMP. The default
+     * handler is active as long the application doesn't supply its own
+     * custom IO handler via #SetIOHandler().
+     * @return A valid IOSystem interface, never NULL. */
+    IOSystem* GetIOHandler() const;
+
+    // -------------------------------------------------------------------
+    /** Checks whether a default IO handler is active
+     * A default handler is active as long the application doesn't
+     * supply its own custom IO handler via #SetIOHandler().
+     * @return true by default */
+    bool IsDefaultIOHandler() const;
+
+    // -------------------------------------------------------------------
+    /** Supplies a custom progress handler to the exporter. This
+     *  interface exposes an #Update() callback, which is called
+     *  more or less periodically (please don't sue us if it
+     *  isn't as periodically as you'd like it to have ...).
+     *  This can be used to implement progress bars and loading
+     *  timeouts.
+     *  @param pHandler Progress callback interface. Pass nullptr to
+     *    disable progress reporting.
+     *  @note Progress handlers can be used to abort the loading
+     *    at almost any time.*/
+    void SetProgressHandler(ProgressHandler* pHandler);
+
+    // -------------------------------------------------------------------
+    /** Exports the given scene to a chosen file format. Returns the exported
+    * data as a binary blob which you can write into a file or something.
+    * When you're done with the data, simply let the #Exporter instance go
+    * out of scope to have it released automatically.
+    * @param pScene The scene to export. Stays in possession of the caller,
+    *   is not changed by the function.
+    * @param pFormatId ID string to specify to which format you want to
+    *   export to. Use
+    * #GetExportFormatCount / #GetExportFormatDescription to learn which
+    *   export formats are available.
+    * @param pPreprocessing See the documentation for #Export
+    * @return the exported data or NULL in case of error.
+    * @note If the Exporter instance did already hold a blob from
+    *   a previous call to #ExportToBlob, it will be disposed.
+    *   Any IO handlers set via #SetIOHandler are ignored here.
+    * @note Use aiCopyScene() to get a modifiable copy of a previously
+    *   imported scene. */
+    const aiExportDataBlob* ExportToBlob(const aiScene* pScene, const char* pFormatId,
+        unsigned int pPreprocessing = 0u, const ExportProperties* = nullptr);
+    const aiExportDataBlob* ExportToBlob(  const aiScene* pScene, const std::string& pFormatId,
+        unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
+
+    // -------------------------------------------------------------------
+    /** Convenience function to export directly to a file. Use
+     *  #SetIOSystem to supply a custom IOSystem to gain fine-grained control
+     *  about the output data flow of the export process.
+     * @param pBlob A data blob obtained from a previous call to #aiExportScene. Must not be NULL.
+     * @param pPath Full target file name. Target must be accessible.
+     * @param pPreprocessing Accepts any choice of the #aiPostProcessSteps enumerated
+     *   flags, but in reality only a subset of them makes sense here. Specifying
+     *   'preprocessing' flags is useful if the input scene does not conform to
+     *   Assimp's default conventions as specified in the @link data Data Structures Page @endlink.
+     *   In short, this means the geometry data should use a right-handed coordinate systems, face
+     *   winding should be counter-clockwise and the UV coordinate origin is assumed to be in
+     *   the upper left. The #aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+     *   #aiProcess_FlipWindingOrder flags are used in the import side to allow users
+     *   to have those defaults automatically adapted to their conventions. Specifying those flags
+     *   for exporting has the opposite effect, respectively. Some other of the
+     *   #aiPostProcessSteps enumerated values may be useful as well, but you'll need
+     *   to try out what their effect on the exported file is. Many formats impose
+     *   their own restrictions on the structure of the geometry stored therein,
+     *   so some preprocessing may have little or no effect at all, or may be
+     *   redundant as exporters would apply them anyhow. A good example
+     *   is triangulation - whilst you can enforce it by specifying
+     *   the #aiProcess_Triangulate flag, most export formats support only
+     *   triangulate data so they would run the step even if it wasn't requested.
+     *
+     *   If assimp detects that the input scene was directly taken from the importer side of
+     *   the library (i.e. not copied using aiCopyScene and potentially modified afterwards),
+     *   any post-processing steps already applied to the scene will not be applied again, unless
+     *   they show non-idempotent behavior (#aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+     *   #aiProcess_FlipWindingOrder).
+     * @return AI_SUCCESS if everything was fine.
+     * @note Use aiCopyScene() to get a modifiable copy of a previously
+     *   imported scene.*/
+    aiReturn Export( const aiScene* pScene, const char* pFormatId, const char* pPath,
+        unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
+    aiReturn Export( const aiScene* pScene, const std::string& pFormatId, const std::string& pPath,
+        unsigned int pPreprocessing = 0u, const ExportProperties* pProperties = nullptr);
+
+    // -------------------------------------------------------------------
+    /** Returns an error description of an error that occurred in #Export
+     *    or #ExportToBlob
+     *
+     * Returns an empty string if no error occurred.
+     * @return A description of the last error, an empty string if no
+     *   error occurred. The string is never NULL.
+     *
+     * @note The returned function remains valid until one of the
+     * following methods is called: #Export, #ExportToBlob, #FreeBlob */
+    const char* GetErrorString() const;
+
+    // -------------------------------------------------------------------
+    /** Return the blob obtained from the last call to #ExportToBlob */
+    const aiExportDataBlob* GetBlob() const;
+
+    // -------------------------------------------------------------------
+    /** Orphan the blob from the last call to #ExportToBlob. This means
+     *  the caller takes ownership and is thus responsible for calling
+     *  the C API function #aiReleaseExportBlob to release it. */
+    const aiExportDataBlob* GetOrphanedBlob() const;
+
+    // -------------------------------------------------------------------
+    /** Frees the current blob.
+     *
+     *  The function does nothing if no blob has previously been
+     *  previously produced via #ExportToBlob. #FreeBlob is called
+     *  automatically by the destructor. The only reason to call
+     *  it manually would be to reclaim as much storage as possible
+     *  without giving up the #Exporter instance yet. */
+    void FreeBlob( );
+
+    // -------------------------------------------------------------------
+    /** Returns the number of export file formats available in the current
+     *  Assimp build. Use #Exporter::GetExportFormatDescription to
+     *  retrieve infos of a specific export format.
+     *
+     *  This includes built-in exporters as well as exporters registered
+     *  using #RegisterExporter.
+     **/
+    size_t GetExportFormatCount() const;
+
+    // -------------------------------------------------------------------
+    /** Returns a description of the nth export file format. Use #
+     *  #Exporter::GetExportFormatCount to learn how many export
+     *  formats are supported.
+     *
+     * The returned pointer is of static storage duration if the
+     * pIndex pertains to a built-in exporter (i.e. one not registered
+     * via #RegistrerExporter). It is restricted to the life-time of the
+     * #Exporter instance otherwise.
+     *
+     * @param pIndex Index of the export format to retrieve information
+     *  for. Valid range is 0 to #Exporter::GetExportFormatCount
+     * @return A description of that specific export format.
+     *  NULL if pIndex is out of range. */
+    const aiExportFormatDesc* GetExportFormatDescription( size_t pIndex ) const;
+
+    // -------------------------------------------------------------------
+    /** Register a custom exporter. Custom export formats are limited to
+     *    to the current #Exporter instance and do not affect the
+     *    library globally. The indexes under which the format's
+     *    export format description can be queried are assigned
+     *    monotonously.
+     *  @param desc Exporter description.
+     *  @return aiReturn_SUCCESS if the export format was successfully
+     *    registered. A common cause that would prevent an exporter
+     *    from being registered is that its format id is already
+     *    occupied by another format. */
+    aiReturn RegisterExporter(const ExportFormatEntry& desc);
+
+    // -------------------------------------------------------------------
+    /** Remove an export format previously registered with #RegisterExporter
+     *  from the #Exporter instance (this can also be used to drop
+     *  built-in exporters because those are implicitly registered
+     *  using #RegisterExporter).
+     *  @param id Format id to be unregistered, this refers to the
+     *    'id' field of #aiExportFormatDesc.
+     *  @note Calling this method on a format description not yet registered
+     *    has no effect.*/
+    void UnregisterExporter(const char* id);
+
+protected:
+    // Just because we don't want you to know how we're hacking around.
+    ExporterPimpl* pimpl;
+};
+
+class ASSIMP_API ExportProperties {
+public:
+    // Data type to store the key hash
+    typedef unsigned int KeyType;
+
+    // typedefs for our four configuration maps.
+    // We don't need more, so there is no need for a generic solution
+    typedef std::map<KeyType, int> IntPropertyMap;
+    typedef std::map<KeyType, ai_real> FloatPropertyMap;
+    typedef std::map<KeyType, std::string> StringPropertyMap;
+    typedef std::map<KeyType, aiMatrix4x4> MatrixPropertyMap;
+
+public:
+    /** Standard constructor
+    * @see ExportProperties()
+    */
+    ExportProperties();
+
+    // -------------------------------------------------------------------
+    /** Copy constructor.
+     *
+     * This copies the configuration properties of another ExportProperties.
+     * @see ExportProperties(const ExportProperties& other)
+     */
+    ExportProperties(const ExportProperties& other);
+
+    // -------------------------------------------------------------------
+    /** Set an integer configuration property.
+     * @param szName Name of the property. All supported properties
+     *   are defined in the aiConfig.g header (all constants share the
+     *   prefix AI_CONFIG_XXX and are simple strings).
+     * @param iValue New value of the property
+     * @return true if the property was set before. The new value replaces
+     *   the previous value in this case.
+     * @note Property of different types (float, int, string ..) are kept
+     *   on different stacks, so calling SetPropertyInteger() for a
+     *   floating-point property has no effect - the loader will call
+     *   GetPropertyFloat() to read the property, but it won't be there.
+     */
+    bool SetPropertyInteger(const char* szName, int iValue);
+
+    // -------------------------------------------------------------------
+    /** Set a boolean configuration property. Boolean properties
+     *  are stored on the integer stack internally so it's possible
+     *  to set them via #SetPropertyBool and query them with
+     *  #GetPropertyBool and vice versa.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyBool(const char* szName, bool value)    {
+        return SetPropertyInteger(szName,value);
+    }
+
+    // -------------------------------------------------------------------
+    /** Set a floating-point configuration property.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyFloat(const char* szName, ai_real fValue);
+
+    // -------------------------------------------------------------------
+    /** Set a string configuration property.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyString(const char* szName, const std::string& sValue);
+
+    // -------------------------------------------------------------------
+    /** Set a matrix configuration property.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyMatrix(const char* szName, const aiMatrix4x4& sValue);
+
+    // -------------------------------------------------------------------
+    /** Get a configuration property.
+     * @param szName Name of the property. All supported properties
+     *   are defined in the aiConfig.g header (all constants share the
+     *   prefix AI_CONFIG_XXX).
+     * @param iErrorReturn Value that is returned if the property
+     *   is not found.
+     * @return Current value of the property
+     * @note Property of different types (float, int, string ..) are kept
+     *   on different lists, so calling SetPropertyInteger() for a
+     *   floating-point property has no effect - the loader will call
+     *   GetPropertyFloat() to read the property, but it won't be there.
+     */
+    int GetPropertyInteger(const char* szName,
+        int iErrorReturn = 0xffffffff) const;
+
+    // -------------------------------------------------------------------
+    /** Get a boolean configuration property. Boolean properties
+     *  are stored on the integer stack internally so it's possible
+     *  to set them via #SetPropertyBool and query them with
+     *  #GetPropertyBool and vice versa.
+     * @see GetPropertyInteger()
+     */
+    bool GetPropertyBool(const char* szName, bool bErrorReturn = false) const {
+        return GetPropertyInteger(szName,bErrorReturn)!=0;
+    }
+
+    // -------------------------------------------------------------------
+    /** Get a floating-point configuration property
+     * @see GetPropertyInteger()
+     */
+    ai_real GetPropertyFloat(const char* szName,
+        ai_real fErrorReturn = 10e10f) const;
+
+    // -------------------------------------------------------------------
+    /** Get a string configuration property
+     *
+     *  The return value remains valid until the property is modified.
+     * @see GetPropertyInteger()
+     */
+    const std::string GetPropertyString(const char* szName,
+        const std::string& sErrorReturn = "") const;
+
+    // -------------------------------------------------------------------
+    /** Get a matrix configuration property
+     *
+     *  The return value remains valid until the property is modified.
+     * @see GetPropertyInteger()
+     */
+    const aiMatrix4x4 GetPropertyMatrix(const char* szName,
+        const aiMatrix4x4& sErrorReturn = aiMatrix4x4()) const;
+
+    // -------------------------------------------------------------------
+    /** Determine a integer configuration property has been set.
+    * @see HasPropertyInteger()
+     */
+    bool HasPropertyInteger(const char* szName) const;
+
+    /** Determine a boolean configuration property has been set.
+    * @see HasPropertyBool()
+     */
+    bool HasPropertyBool(const char* szName) const;
+
+    /** Determine a boolean configuration property has been set.
+    * @see HasPropertyFloat()
+     */
+    bool HasPropertyFloat(const char* szName) const;
+
+    /** Determine a String configuration property has been set.
+    * @see HasPropertyString()
+     */
+    bool HasPropertyString(const char* szName) const;
+
+    /** Determine a Matrix configuration property has been set.
+    * @see HasPropertyMatrix()
+     */
+    bool HasPropertyMatrix(const char* szName) const;
+
+protected:
+
+    /** List of integer properties */
+    IntPropertyMap mIntProperties;
+
+    /** List of floating-point properties */
+    FloatPropertyMap mFloatProperties;
+
+    /** List of string properties */
+    StringPropertyMap mStringProperties;
+
+    /** List of Matrix properties */
+    MatrixPropertyMap mMatrixProperties;
+};
+
+// ----------------------------------------------------------------------------------
+inline 
+const aiExportDataBlob* Exporter::ExportToBlob(  const aiScene* pScene, const std::string& pFormatId,
+                                                 unsigned int pPreprocessing, const ExportProperties* pProperties)
+{
+    return ExportToBlob(pScene,pFormatId.c_str(),pPreprocessing, pProperties);
+}
+
+// ----------------------------------------------------------------------------------
+inline
+aiReturn Exporter :: Export( const aiScene* pScene, const std::string& pFormatId, 
+                                    const std::string& pPath, unsigned int pPreprocessing, 
+                                    const ExportProperties* pProperties)
+{
+    return Export(pScene,pFormatId.c_str(),pPath.c_str(),pPreprocessing, pProperties);
+}
+
+} // namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_EXPORT
+#endif // AI_EXPORT_HPP_INC
diff --git a/thirdparty/assimp/include/assimp/GenericProperty.h b/thirdparty/assimp/include/assimp/GenericProperty.h
new file mode 100644
index 0000000000..183ecd5197
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/GenericProperty.h
@@ -0,0 +1,133 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef AI_GENERIC_PROPERTY_H_INCLUDED
+#define AI_GENERIC_PROPERTY_H_INCLUDED
+
+#include <assimp/Importer.hpp>
+#include <assimp/ai_assert.h>
+#include "Hash.h"
+
+#include <map>
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline
+bool SetGenericProperty(std::map< unsigned int, T >& list,
+        const char* szName, const T& value) {
+    ai_assert(nullptr != szName);
+    const uint32_t hash = SuperFastHash(szName);
+
+    typename std::map<unsigned int, T>::iterator it = list.find(hash);
+    if (it == list.end())   {
+        list.insert(std::pair<unsigned int, T>( hash, value ));
+        return false;
+    }
+    (*it).second = value;
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline
+const T& GetGenericProperty(const std::map< unsigned int, T >& list,
+        const char* szName, const T& errorReturn) {
+    ai_assert(nullptr != szName);
+    const uint32_t hash = SuperFastHash(szName);
+
+    typename std::map<unsigned int, T>::const_iterator it = list.find(hash);
+    if (it == list.end()) {
+        return errorReturn;
+    }
+
+    return (*it).second;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Special version for pointer types - they will be deleted when replaced with another value
+// passing NULL removes the whole property
+template <class T>
+inline
+void SetGenericPropertyPtr(std::map< unsigned int, T* >& list,
+        const char* szName, T* value, bool* bWasExisting = nullptr ) {
+    ai_assert(nullptr != szName);
+    const uint32_t hash = SuperFastHash(szName);
+
+    typename std::map<unsigned int, T*>::iterator it = list.find(hash);
+    if (it == list.end())   {
+        if (bWasExisting) {
+            *bWasExisting = false;
+        }
+
+        list.insert(std::pair<unsigned int,T*>( hash, value ));
+        return;
+    }
+    if ((*it).second != value)  {
+        delete (*it).second;
+        (*it).second = value;
+    }
+    if (!value) {
+        list.erase(it);
+    }
+    if (bWasExisting) {
+        *bWasExisting = true;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline
+bool HasGenericProperty(const std::map< unsigned int, T >& list,
+        const char* szName) {
+    ai_assert(nullptr != szName);
+    const uint32_t hash = SuperFastHash(szName);
+
+    typename std::map<unsigned int, T>::const_iterator it = list.find(hash);
+    if (it == list.end()) {
+        return false;
+    }
+
+    return true;
+}
+
+#endif // !! AI_GENERIC_PROPERTY_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/Hash.h b/thirdparty/assimp/include/assimp/Hash.h
new file mode 100644
index 0000000000..30657be198
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Hash.h
@@ -0,0 +1,118 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef AI_HASH_H_INCLUDED
+#define AI_HASH_H_INCLUDED
+
+#include <stdint.h>
+#include <string.h>
+
+// ------------------------------------------------------------------------------------------------
+// Hashing function taken from
+// http://www.azillionmonkeys.com/qed/hash.html
+// (incremental version)
+//
+// This code is Copyright 2004-2008 by Paul Hsieh. It is used here in the belief that
+// Assimp's license is considered compatible with Pauls's derivative license as specified
+// on his web page.
+//
+// (stdint.h should have been been included here)
+// ------------------------------------------------------------------------------------------------
+#undef get16bits
+#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
+  || defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
+#define get16bits(d) (*((const uint16_t *) (d)))
+#endif
+
+#if !defined (get16bits)
+#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)\
+                       +(uint32_t)(((const uint8_t *)(d))[0]) )
+#endif
+
+// ------------------------------------------------------------------------------------------------
+inline uint32_t SuperFastHash (const char * data, uint32_t len = 0, uint32_t hash = 0) {
+uint32_t tmp;
+int rem;
+
+    if (!data) return 0;
+    if (!len)len = (uint32_t)::strlen(data);
+
+    rem = len & 3;
+    len >>= 2;
+
+    /* Main loop */
+    for (;len > 0; len--) {
+        hash  += get16bits (data);
+        tmp    = (get16bits (data+2) << 11) ^ hash;
+        hash   = (hash << 16) ^ tmp;
+        data  += 2*sizeof (uint16_t);
+        hash  += hash >> 11;
+    }
+
+    /* Handle end cases */
+    switch (rem) {
+        case 3: hash += get16bits (data);
+                hash ^= hash << 16;
+                hash ^= data[sizeof (uint16_t)] << 18;
+                hash += hash >> 11;
+                break;
+        case 2: hash += get16bits (data);
+                hash ^= hash << 11;
+                hash += hash >> 17;
+                break;
+        case 1: hash += *data;
+                hash ^= hash << 10;
+                hash += hash >> 1;
+    }
+
+    /* Force "avalanching" of final 127 bits */
+    hash ^= hash << 3;
+    hash += hash >> 5;
+    hash ^= hash << 4;
+    hash += hash >> 17;
+    hash ^= hash << 25;
+    hash += hash >> 6;
+
+    return hash;
+}
+
+#endif // !! AI_HASH_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/IOStream.hpp b/thirdparty/assimp/include/assimp/IOStream.hpp
new file mode 100644
index 0000000000..0623d0f70b
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/IOStream.hpp
@@ -0,0 +1,142 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file IOStream.hpp
+ *  @brief File I/O wrappers for C++.
+ */
+
+#pragma once
+#ifndef AI_IOSTREAM_H_INC
+#define AI_IOSTREAM_H_INC
+
+#include "types.h"
+
+#ifndef __cplusplus
+#   error This header requires C++ to be used. aiFileIO.h is the \
+    corresponding C interface.
+#endif
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+/** @brief CPP-API: Class to handle file I/O for C++
+ *
+ *  Derive an own implementation from this interface to provide custom IO handling
+ *  to the Importer. If you implement this interface, be sure to also provide an
+ *  implementation for IOSystem that creates instances of your custom IO class.
+*/
+class ASSIMP_API IOStream
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+protected:
+    /** Constructor protected, use IOSystem::Open() to create an instance. */
+    IOStream() AI_NO_EXCEPT;
+
+public:
+    // -------------------------------------------------------------------
+    /** @brief Destructor. Deleting the object closes the underlying file,
+     * alternatively you may use IOSystem::Close() to release the file.
+     */
+    virtual ~IOStream();
+
+    // -------------------------------------------------------------------
+    /** @brief Read from the file
+     *
+     * See fread() for more details
+     * This fails for write-only files */
+    virtual size_t Read(void* pvBuffer,
+        size_t pSize,
+        size_t pCount) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Write to the file
+    *
+    * See fwrite() for more details
+    * This fails for read-only files */
+    virtual size_t Write(const void* pvBuffer,
+        size_t pSize,
+        size_t pCount) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Set the read/write cursor of the file
+     *
+     * Note that the offset is _negative_ for aiOrigin_END.
+     * See fseek() for more details */
+    virtual aiReturn Seek(size_t pOffset,
+        aiOrigin pOrigin) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Get the current position of the read/write cursor
+     *
+     * See ftell() for more details */
+    virtual size_t Tell() const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns filesize
+     *  Returns the filesize. */
+    virtual size_t FileSize() const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Flush the contents of the file buffer (for writers)
+     *  See fflush() for more details.
+     */
+    virtual void Flush() = 0;
+}; //! class IOStream
+
+// ----------------------------------------------------------------------------------
+inline
+IOStream::IOStream() AI_NO_EXCEPT {
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline
+IOStream::~IOStream() {
+    // empty
+}
+// ----------------------------------------------------------------------------------
+
+} //!namespace Assimp
+
+#endif //!!AI_IOSTREAM_H_INC
diff --git a/thirdparty/assimp/include/assimp/IOStreamBuffer.h b/thirdparty/assimp/include/assimp/IOStreamBuffer.h
new file mode 100644
index 0000000000..58abd97a02
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/IOStreamBuffer.h
@@ -0,0 +1,355 @@
+#pragma once
+
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#include <assimp/types.h>
+#include <assimp/IOStream.hpp>
+
+#include "ParsingUtils.h"
+
+#include <vector>
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/**
+ *  Implementation of a cached stream buffer.
+ */
+template<class T>
+class IOStreamBuffer {
+public:
+    /// @brief  The class constructor.
+    IOStreamBuffer( size_t cache = 4096 * 4096 );
+
+    /// @brief  The class destructor.
+    ~IOStreamBuffer();
+
+    /// @brief  Will open the cached access for a given stream.
+    /// @param  stream      The stream to cache.
+    /// @return true if successful.
+    bool open( IOStream *stream );
+
+    /// @brief  Will close the cached access.
+    /// @return true if successful.
+    bool close();
+
+    /// @brief  Returns the file-size.
+    /// @return The file-size.
+    size_t size() const;
+    
+    /// @brief  Returns the cache size.
+    /// @return The cache size.
+    size_t cacheSize() const;
+
+    /// @brief  Will read the next block.
+    /// @return true if successful.
+    bool readNextBlock();
+
+    /// @brief  Returns the number of blocks to read.
+    /// @return The number of blocks.
+    size_t getNumBlocks() const;
+
+    /// @brief  Returns the current block index.
+    /// @return The current block index.
+    size_t getCurrentBlockIndex() const;
+
+    /// @brief  Returns the current file pos.
+    /// @return The current file pos.
+    size_t getFilePos() const;
+
+    /// @brief  Will read the next line.
+    /// @param  buffer      The buffer for the next line.
+    /// @return true if successful.
+    bool getNextDataLine( std::vector<T> &buffer, T continuationToken );
+
+    /// @brief  Will read the next line ascii or binary end line char.
+    /// @param  buffer      The buffer for the next line.
+    /// @return true if successful.
+    bool getNextLine(std::vector<T> &buffer);
+
+    /// @brief  Will read the next block.
+    /// @param  buffer      The buffer for the next block.
+    /// @return true if successful.
+    bool getNextBlock( std::vector<T> &buffer );
+
+private:
+    IOStream *m_stream;
+    size_t m_filesize;
+    size_t m_cacheSize;
+    size_t m_numBlocks;
+    size_t m_blockIdx;
+    std::vector<T> m_cache;
+    size_t m_cachePos;
+    size_t m_filePos;
+};
+
+template<class T>
+inline
+IOStreamBuffer<T>::IOStreamBuffer( size_t cache )
+: m_stream( nullptr )
+, m_filesize( 0 )
+, m_cacheSize( cache )
+, m_numBlocks( 0 )
+, m_blockIdx( 0 )
+, m_cachePos( 0 )
+, m_filePos( 0 ) {
+    m_cache.resize( cache );
+    std::fill( m_cache.begin(), m_cache.end(), '\n' );
+}
+
+template<class T>
+inline
+IOStreamBuffer<T>::~IOStreamBuffer() {
+    // empty
+}
+
+template<class T>
+inline
+bool IOStreamBuffer<T>::open( IOStream *stream ) {
+    //  file still opened!
+    if ( nullptr != m_stream ) {
+        return false;
+    }
+
+    //  Invalid stream pointer
+    if ( nullptr == stream ) {
+        return false;
+    }
+
+    m_stream = stream;
+    m_filesize = m_stream->FileSize();
+    if ( m_filesize == 0 ) {
+        return false;
+    }
+    if ( m_filesize < m_cacheSize ) {
+        m_cacheSize = m_filesize;
+    }
+
+    m_numBlocks = m_filesize / m_cacheSize;
+    if ( ( m_filesize % m_cacheSize ) > 0 ) {
+        m_numBlocks++;
+    }
+
+    return true;
+}
+
+template<class T>
+inline
+bool IOStreamBuffer<T>::close() {
+    if ( nullptr == m_stream ) {
+        return false;
+    }
+
+    // init counters and state vars
+    m_stream    = nullptr;
+    m_filesize  = 0;
+    m_numBlocks = 0;
+    m_blockIdx  = 0;
+    m_cachePos  = 0;
+    m_filePos   = 0;
+
+    return true;
+}
+
+template<class T>
+inline
+size_t IOStreamBuffer<T>::size() const {
+    return m_filesize;
+}
+
+template<class T>
+inline
+size_t IOStreamBuffer<T>::cacheSize() const {
+    return m_cacheSize;
+}
+
+template<class T>
+inline
+bool IOStreamBuffer<T>::readNextBlock() {
+    m_stream->Seek( m_filePos, aiOrigin_SET );
+    size_t readLen = m_stream->Read( &m_cache[ 0 ], sizeof( T ), m_cacheSize );
+    if ( readLen == 0 ) {
+        return false;
+    }
+    if ( readLen < m_cacheSize ) {
+        m_cacheSize = readLen;
+    }
+    m_filePos += m_cacheSize;
+    m_cachePos = 0;
+    m_blockIdx++;
+
+    return true;
+}
+
+template<class T>
+inline
+size_t IOStreamBuffer<T>::getNumBlocks() const {
+    return m_numBlocks;
+}
+
+template<class T>
+inline
+size_t IOStreamBuffer<T>::getCurrentBlockIndex() const {
+    return m_blockIdx;
+}
+
+template<class T>
+inline
+size_t IOStreamBuffer<T>::getFilePos() const {
+    return m_filePos;
+}
+
+template<class T>
+inline
+bool IOStreamBuffer<T>::getNextDataLine( std::vector<T> &buffer, T continuationToken ) {
+    buffer.resize( m_cacheSize );
+    if ( m_cachePos >= m_cacheSize || 0 == m_filePos ) {
+        if ( !readNextBlock() ) {
+            return false;
+        }
+    }
+
+    bool continuationFound( false );
+    size_t i = 0;
+    for( ;; ) {
+        if ( continuationToken == m_cache[ m_cachePos ] ) {
+            continuationFound = true;
+            ++m_cachePos;
+        }
+        if ( IsLineEnd( m_cache[ m_cachePos ] ) ) {
+            if ( !continuationFound ) {
+                // the end of the data line
+                break;
+            } else {
+                // skip line end
+                while ( m_cache[m_cachePos] != '\n') {
+                    ++m_cachePos;
+                }
+                ++m_cachePos;
+                continuationFound = false;
+            }
+        }
+
+        buffer[ i ] = m_cache[ m_cachePos ];
+        ++m_cachePos;
+        ++i;
+        if (m_cachePos >= size()) {
+            break;
+        }
+        if ( m_cachePos >= m_cacheSize ) {
+            if ( !readNextBlock() ) {
+                return false;
+            }
+        }
+    }
+    
+    buffer[ i ] = '\n';
+    ++m_cachePos;
+
+    return true;
+}
+
+static inline
+bool isEndOfCache( size_t pos, size_t cacheSize ) {
+    return ( pos == cacheSize );
+}
+
+template<class T>
+inline
+bool IOStreamBuffer<T>::getNextLine(std::vector<T> &buffer) {
+    buffer.resize(m_cacheSize);
+    if ( isEndOfCache( m_cachePos, m_cacheSize ) || 0 == m_filePos) {
+       if (!readNextBlock()) {
+          return false;
+       }
+      }
+
+    if (IsLineEnd(m_cache[m_cachePos])) {
+        // skip line end
+        while (m_cache[m_cachePos] != '\n') {
+            ++m_cachePos;
+        }
+        ++m_cachePos;
+        if ( isEndOfCache( m_cachePos, m_cacheSize ) ) {
+            if ( !readNextBlock() ) {
+                return false;
+            }
+        }
+    }
+
+    size_t i( 0 );
+    while (!IsLineEnd(m_cache[ m_cachePos ])) {
+        buffer[i] = m_cache[ m_cachePos ];
+        ++m_cachePos;
+        ++i;
+        if (m_cachePos >= m_cacheSize) {
+            if (!readNextBlock()) {
+                return false;
+            }
+        }
+    }
+    buffer[i] = '\n';
+    ++m_cachePos;
+
+    return true;
+}
+
+template<class T>
+inline
+bool IOStreamBuffer<T>::getNextBlock( std::vector<T> &buffer) {
+    // Return the last block-value if getNextLine was used before
+    if ( 0 != m_cachePos ) {      
+        buffer = std::vector<T>( m_cache.begin() + m_cachePos, m_cache.end() );
+        m_cachePos = 0;
+    } else {
+        if ( !readNextBlock() ) {
+            return false;
+        }
+
+        buffer = std::vector<T>(m_cache.begin(), m_cache.end());
+    }
+
+    return true;
+}
+
+} // !ns Assimp
diff --git a/thirdparty/assimp/include/assimp/IOSystem.hpp b/thirdparty/assimp/include/assimp/IOSystem.hpp
new file mode 100644
index 0000000000..78139c2839
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/IOSystem.hpp
@@ -0,0 +1,357 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file IOSystem.hpp
+ *  @brief File system wrapper for C++. Inherit this class to supply
+ *  custom file handling logic to the Import library.
+*/
+
+#pragma once
+#ifndef AI_IOSYSTEM_H_INC
+#define AI_IOSYSTEM_H_INC
+
+#ifndef __cplusplus
+#   error This header requires C++ to be used. aiFileIO.h is the \
+    corresponding C interface.
+#endif
+
+#include "types.h"
+
+#ifdef _WIN32
+#   include <direct.h>  
+#   include <stdlib.h>  
+#   include <stdio.h>  
+#else
+#   include <sys/stat.h>
+#   include <sys/types.h>
+#   include <unistd.h>
+#endif // _WIN32
+
+#include <vector>
+
+namespace Assimp    {
+
+    class IOStream;
+
+// ---------------------------------------------------------------------------
+/** @brief CPP-API: Interface to the file system.
+ *
+ *  Derive an own implementation from this interface to supply custom file handling
+ *  to the importer library. If you implement this interface, you also want to
+ *  supply a custom implementation for IOStream.
+ *
+ *  @see Importer::SetIOHandler() 
+ */
+class ASSIMP_API IOSystem
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+public:
+
+    // -------------------------------------------------------------------
+    /** @brief Default constructor.
+     *
+     *  Create an instance of your derived class and assign it to an
+     *  #Assimp::Importer instance by calling Importer::SetIOHandler().
+     */
+    IOSystem() AI_NO_EXCEPT;
+
+    // -------------------------------------------------------------------
+    /** @brief Virtual destructor.
+     *
+     *  It is safe to be called from within DLL Assimp, we're constructed
+     *  on Assimp's heap.
+     */
+    virtual ~IOSystem();
+
+    // -------------------------------------------------------------------
+    /** @brief For backward compatibility
+     *  @see Exists(const char*)
+     */
+    AI_FORCE_INLINE bool Exists( const std::string& pFile) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Tests for the existence of a file at the given path.
+     *
+     * @param pFile Path to the file
+     * @return true if there is a file with this path, else false.
+     */
+    virtual bool Exists( const char* pFile) const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns the system specific directory separator
+     *  @return System specific directory separator
+     */
+    virtual char getOsSeparator() const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Open a new file with a given path.
+     *
+     *  When the access to the file is finished, call Close() to release
+     *  all associated resources (or the virtual dtor of the IOStream).
+     *
+     *  @param pFile Path to the file
+     *  @param pMode Desired file I/O mode. Required are: "wb", "w", "wt",
+     *         "rb", "r", "rt".
+     *
+     *  @return New IOStream interface allowing the lib to access
+     *         the underlying file.
+     *  @note When implementing this class to provide custom IO handling,
+     *  you probably have to supply an own implementation of IOStream as well.
+     */
+    virtual IOStream* Open(const char* pFile,
+        const char* pMode = "rb") = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief For backward compatibility
+     *  @see Open(const char*, const char*)
+     */
+    inline IOStream* Open(const std::string& pFile,
+        const std::string& pMode = std::string("rb"));
+
+    // -------------------------------------------------------------------
+    /** @brief Closes the given file and releases all resources
+     *    associated with it.
+     *  @param pFile The file instance previously created by Open().
+     */
+    virtual void Close( IOStream* pFile) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Compares two paths and check whether the point to
+     *         identical files.
+     *
+     * The dummy implementation of this virtual member performs a
+     * case-insensitive comparison of the given strings. The default IO
+     * system implementation uses OS mechanisms to convert relative into
+     * absolute paths, so the result can be trusted.
+     * @param one First file
+     * @param second Second file
+     * @return true if the paths point to the same file. The file needn't
+     *   be existing, however.
+     */
+    virtual bool ComparePaths (const char* one,
+        const char* second) const;
+
+    // -------------------------------------------------------------------
+    /** @brief For backward compatibility
+     *  @see ComparePaths(const char*, const char*)
+     */
+    inline bool ComparePaths (const std::string& one,
+        const std::string& second) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Pushes a new directory onto the directory stack.
+     *  @param path Path to push onto the stack.
+     *  @return True, when push was successful, false if path is empty.
+     */
+    virtual bool PushDirectory( const std::string &path );
+
+    // -------------------------------------------------------------------
+    /** @brief Returns the top directory from the stack.
+     *  @return The directory on the top of the stack.
+     *          Returns empty when no directory was pushed to the stack.
+     */
+    virtual const std::string &CurrentDirectory() const;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns the number of directories stored on the stack.
+     *  @return The number of directories of the stack.
+     */
+    virtual size_t StackSize() const;
+
+    // -------------------------------------------------------------------
+    /** @brief Pops the top directory from the stack.
+     *  @return True, when a directory was on the stack. False if no
+     *          directory was on the stack.
+     */
+    virtual bool PopDirectory();
+
+    // -------------------------------------------------------------------
+    /** @brief CReates an new directory at the given path.
+     *  @param  path    [in] The path to create.
+     *  @return True, when a directory was created. False if the directory
+     *           cannot be created.
+     */
+    virtual bool CreateDirectory( const std::string &path );
+
+    // -------------------------------------------------------------------
+    /** @brief Will change the current directory to the given path.
+     *  @param path     [in] The path to change to.
+     *  @return True, when the directory has changed successfully.
+     */
+    virtual bool ChangeDirectory( const std::string &path );
+
+    virtual bool DeleteFile( const std::string &file );
+
+private:
+    std::vector<std::string> m_pathStack;
+};
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOSystem::IOSystem() AI_NO_EXCEPT
+: m_pathStack() {
+    // empty
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOSystem::~IOSystem() {
+    // empty
+}
+
+// ----------------------------------------------------------------------------
+// For compatibility, the interface of some functions taking a std::string was
+// changed to const char* to avoid crashes between binary incompatible STL
+// versions. This code her is inlined,  so it shouldn't cause any problems.
+// ----------------------------------------------------------------------------
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOStream* IOSystem::Open(const std::string& pFile, const std::string& pMode) {
+    // NOTE:
+    // For compatibility, interface was changed to const char* to
+    // avoid crashes between binary incompatible STL versions
+    return Open(pFile.c_str(),pMode.c_str());
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::Exists( const std::string& pFile) const {
+    // NOTE:
+    // For compatibility, interface was changed to const char* to
+    // avoid crashes between binary incompatible STL versions
+    return Exists(pFile.c_str());
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::ComparePaths (const std::string& one, const std::string& second) const {
+    // NOTE:
+    // For compatibility, interface was changed to const char* to
+    // avoid crashes between binary incompatible STL versions
+    return ComparePaths(one.c_str(),second.c_str());
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::PushDirectory( const std::string &path ) {
+    if ( path.empty() ) {
+        return false;
+    }
+
+    m_pathStack.push_back( path );
+
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+const std::string &IOSystem::CurrentDirectory() const {
+    if ( m_pathStack.empty() ) {
+        static const std::string Dummy("");
+        return Dummy;
+    }
+    return m_pathStack[ m_pathStack.size()-1 ];
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+size_t IOSystem::StackSize() const {
+    return m_pathStack.size();
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::PopDirectory() {
+    if ( m_pathStack.empty() ) {
+        return false;
+    }
+
+    m_pathStack.pop_back();
+
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::CreateDirectory( const std::string &path ) {
+    if ( path.empty() ) {
+        return false;
+    }
+
+#ifdef _WIN32
+    return 0 != ::_mkdir( path.c_str() );
+#else
+    return 0 != ::mkdir( path.c_str(), 0777 );
+#endif // _WIN32
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::ChangeDirectory( const std::string &path ) {
+    if ( path.empty() ) {
+        return false;
+    }
+
+#ifdef _WIN32
+    return 0 != ::_chdir( path.c_str() );
+#else
+    return 0 != ::chdir( path.c_str() );
+#endif // _WIN32
+}
+
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::DeleteFile( const std::string &file ) {
+    if ( file.empty() ) {
+        return false;
+    }
+    const int retCode( ::remove( file.c_str() ) );
+    return ( 0 == retCode );
+}
+} //!ns Assimp
+
+#endif //AI_IOSYSTEM_H_INC
diff --git a/thirdparty/assimp/include/assimp/Importer.hpp b/thirdparty/assimp/include/assimp/Importer.hpp
new file mode 100644
index 0000000000..4941df4122
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Importer.hpp
@@ -0,0 +1,659 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  Importer.hpp
+ *  @brief Defines the C++-API to the Open Asset Import Library.
+ */
+#pragma once
+#ifndef AI_ASSIMP_HPP_INC
+#define AI_ASSIMP_HPP_INC
+
+#ifndef __cplusplus
+#   error This header requires C++ to be used. Use assimp.h for plain C.
+#endif // __cplusplus
+
+// Public ASSIMP data structures
+#include <assimp/types.h>
+
+namespace Assimp    {
+    // =======================================================================
+    // Public interface to Assimp
+    class Importer;
+    class IOStream;
+    class IOSystem;
+    class ProgressHandler;
+
+    // =======================================================================
+    // Plugin development
+    //
+    // Include the following headers for the declarations:
+    // BaseImporter.h
+    // BaseProcess.h
+    class BaseImporter;
+    class BaseProcess;
+    class SharedPostProcessInfo;
+    class BatchLoader;
+
+    // =======================================================================
+    // Holy stuff, only for members of the high council of the Jedi.
+    class ImporterPimpl;
+} //! namespace Assimp
+
+#define AI_PROPERTY_WAS_NOT_EXISTING 0xffffffff
+
+struct aiScene;
+
+// importerdesc.h
+struct aiImporterDesc;
+
+/** @namespace Assimp Assimp's CPP-API and all internal APIs */
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+/** CPP-API: The Importer class forms an C++ interface to the functionality of the
+*   Open Asset Import Library.
+*
+* Create an object of this class and call ReadFile() to import a file.
+* If the import succeeds, the function returns a pointer to the imported data.
+* The data remains property of the object, it is intended to be accessed
+* read-only. The imported data will be destroyed along with the Importer
+* object. If the import fails, ReadFile() returns a NULL pointer. In this
+* case you can retrieve a human-readable error description be calling
+* GetErrorString(). You can call ReadFile() multiple times with a single Importer
+* instance. Actually, constructing Importer objects involves quite many
+* allocations and may take some time, so it's better to reuse them as often as
+* possible.
+*
+* If you need the Importer to do custom file handling to access the files,
+* implement IOSystem and IOStream and supply an instance of your custom
+* IOSystem implementation by calling SetIOHandler() before calling ReadFile().
+* If you do not assign a custion IO handler, a default handler using the
+* standard C++ IO logic will be used.
+*
+* @note One Importer instance is not thread-safe. If you use multiple
+* threads for loading, each thread should maintain its own Importer instance.
+*/
+class ASSIMP_API Importer   {
+public:
+    /**
+     *  @brief The upper limit for hints.
+     */
+    static const unsigned int MaxLenHint = 200;
+
+public:
+
+    // -------------------------------------------------------------------
+    /** Constructor. Creates an empty importer object.
+     *
+     * Call ReadFile() to start the import process. The configuration
+     * property table is initially empty.
+     */
+    Importer();
+
+    // -------------------------------------------------------------------
+    /** Copy constructor.
+     *
+     * This copies the configuration properties of another Importer.
+     * If this Importer owns a scene it won't be copied.
+     * Call ReadFile() to start the import process.
+     */
+    Importer(const Importer& other)=delete;
+
+    // -------------------------------------------------------------------
+    /** Assignment operator has been deleted
+     */
+    Importer &operator=(const Importer &) = delete;
+
+    // -------------------------------------------------------------------
+    /** Destructor. The object kept ownership of the imported data,
+     * which now will be destroyed along with the object.
+     */
+    ~Importer();
+
+
+    // -------------------------------------------------------------------
+    /** Registers a new loader.
+     *
+     * @param pImp Importer to be added. The Importer instance takes
+     *   ownership of the pointer, so it will be automatically deleted
+     *   with the Importer instance.
+     * @return AI_SUCCESS if the loader has been added. The registration
+     *   fails if there is already a loader for a specific file extension.
+     */
+    aiReturn RegisterLoader(BaseImporter* pImp);
+
+    // -------------------------------------------------------------------
+    /** Unregisters a loader.
+     *
+     * @param pImp Importer to be unregistered.
+     * @return AI_SUCCESS if the loader has been removed. The function
+     *   fails if the loader is currently in use (this could happen
+     *   if the #Importer instance is used by more than one thread) or
+     *   if it has not yet been registered.
+     */
+    aiReturn UnregisterLoader(BaseImporter* pImp);
+
+    // -------------------------------------------------------------------
+    /** Registers a new post-process step.
+     *
+     * At the moment, there's a small limitation: new post processing
+     * steps are added to end of the list, or in other words, executed
+     * last, after all built-in steps.
+     * @param pImp Post-process step to be added. The Importer instance
+     *   takes ownership of the pointer, so it will be automatically
+     *   deleted with the Importer instance.
+     * @return AI_SUCCESS if the step has been added correctly.
+     */
+    aiReturn RegisterPPStep(BaseProcess* pImp);
+
+    // -------------------------------------------------------------------
+    /** Unregisters a post-process step.
+     *
+     * @param pImp Step to be unregistered.
+     * @return AI_SUCCESS if the step has been removed. The function
+     *   fails if the step is currently in use (this could happen
+     *   if the #Importer instance is used by more than one thread) or
+     *   if it has not yet been registered.
+     */
+    aiReturn UnregisterPPStep(BaseProcess* pImp);
+
+    // -------------------------------------------------------------------
+    /** Set an integer configuration property.
+     * @param szName Name of the property. All supported properties
+     *   are defined in the aiConfig.g header (all constants share the
+     *   prefix AI_CONFIG_XXX and are simple strings).
+     * @param iValue New value of the property
+     * @return true if the property was set before. The new value replaces
+     *   the previous value in this case.
+     * @note Property of different types (float, int, string ..) are kept
+     *   on different stacks, so calling SetPropertyInteger() for a
+     *   floating-point property has no effect - the loader will call
+     *   GetPropertyFloat() to read the property, but it won't be there.
+     */
+    bool SetPropertyInteger(const char* szName, int iValue);
+
+    // -------------------------------------------------------------------
+    /** Set a boolean configuration property. Boolean properties
+     *  are stored on the integer stack internally so it's possible
+     *  to set them via #SetPropertyBool and query them with
+     *  #GetPropertyBool and vice versa.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyBool(const char* szName, bool value)    {
+        return SetPropertyInteger(szName,value);
+    }
+
+    // -------------------------------------------------------------------
+    /** Set a floating-point configuration property.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyFloat(const char* szName, ai_real fValue);
+
+    // -------------------------------------------------------------------
+    /** Set a string configuration property.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyString(const char* szName, const std::string& sValue);
+
+    // -------------------------------------------------------------------
+    /** Set a matrix configuration property.
+     * @see SetPropertyInteger()
+     */
+    bool SetPropertyMatrix(const char* szName, const aiMatrix4x4& sValue);
+
+    // -------------------------------------------------------------------
+    /** Get a configuration property.
+     * @param szName Name of the property. All supported properties
+     *   are defined in the aiConfig.g header (all constants share the
+     *   prefix AI_CONFIG_XXX).
+     * @param iErrorReturn Value that is returned if the property
+     *   is not found.
+     * @return Current value of the property
+     * @note Property of different types (float, int, string ..) are kept
+     *   on different lists, so calling SetPropertyInteger() for a
+     *   floating-point property has no effect - the loader will call
+     *   GetPropertyFloat() to read the property, but it won't be there.
+     */
+    int GetPropertyInteger(const char* szName,
+        int iErrorReturn = 0xffffffff) const;
+
+    // -------------------------------------------------------------------
+    /** Get a boolean configuration property. Boolean properties
+     *  are stored on the integer stack internally so it's possible
+     *  to set them via #SetPropertyBool and query them with
+     *  #GetPropertyBool and vice versa.
+     * @see GetPropertyInteger()
+     */
+    bool GetPropertyBool(const char* szName, bool bErrorReturn = false) const {
+        return GetPropertyInteger(szName,bErrorReturn)!=0;
+    }
+
+    // -------------------------------------------------------------------
+    /** Get a floating-point configuration property
+     * @see GetPropertyInteger()
+     */
+    ai_real GetPropertyFloat(const char* szName,
+        ai_real fErrorReturn = 10e10) const;
+
+    // -------------------------------------------------------------------
+    /** Get a string configuration property
+     *
+     *  The return value remains valid until the property is modified.
+     * @see GetPropertyInteger()
+     */
+    const std::string GetPropertyString(const char* szName,
+        const std::string& sErrorReturn = "") const;
+
+    // -------------------------------------------------------------------
+    /** Get a matrix configuration property
+     *
+     *  The return value remains valid until the property is modified.
+     * @see GetPropertyInteger()
+     */
+    const aiMatrix4x4 GetPropertyMatrix(const char* szName,
+        const aiMatrix4x4& sErrorReturn = aiMatrix4x4()) const;
+
+    // -------------------------------------------------------------------
+    /** Supplies a custom IO handler to the importer to use to open and
+     * access files. If you need the importer to use custom IO logic to
+     * access the files, you need to provide a custom implementation of
+     * IOSystem and IOFile to the importer. Then create an instance of
+     * your custom IOSystem implementation and supply it by this function.
+     *
+     * The Importer takes ownership of the object and will destroy it
+     * afterwards. The previously assigned handler will be deleted.
+     * Pass NULL to take again ownership of your IOSystem and reset Assimp
+     * to use its default implementation.
+     *
+     * @param pIOHandler The IO handler to be used in all file accesses
+     *   of the Importer.
+     */
+    void SetIOHandler( IOSystem* pIOHandler);
+
+    // -------------------------------------------------------------------
+    /** Retrieves the IO handler that is currently set.
+     * You can use #IsDefaultIOHandler() to check whether the returned
+     * interface is the default IO handler provided by ASSIMP. The default
+     * handler is active as long the application doesn't supply its own
+     * custom IO handler via #SetIOHandler().
+     * @return A valid IOSystem interface, never NULL.
+     */
+    IOSystem* GetIOHandler() const;
+
+    // -------------------------------------------------------------------
+    /** Checks whether a default IO handler is active
+     * A default handler is active as long the application doesn't
+     * supply its own custom IO handler via #SetIOHandler().
+     * @return true by default
+     */
+    bool IsDefaultIOHandler() const;
+
+    // -------------------------------------------------------------------
+    /** Supplies a custom progress handler to the importer. This
+     *  interface exposes an #Update() callback, which is called
+     *  more or less periodically (please don't sue us if it
+     *  isn't as periodically as you'd like it to have ...).
+     *  This can be used to implement progress bars and loading
+     *  timeouts.
+     *  @param pHandler Progress callback interface. Pass NULL to
+     *    disable progress reporting.
+     *  @note Progress handlers can be used to abort the loading
+     *    at almost any time.*/
+    void SetProgressHandler ( ProgressHandler* pHandler );
+
+    // -------------------------------------------------------------------
+    /** Retrieves the progress handler that is currently set.
+     * You can use #IsDefaultProgressHandler() to check whether the returned
+     * interface is the default handler provided by ASSIMP. The default
+     * handler is active as long the application doesn't supply its own
+     * custom handler via #SetProgressHandler().
+     * @return A valid ProgressHandler interface, never NULL.
+     */
+    ProgressHandler* GetProgressHandler() const;
+
+    // -------------------------------------------------------------------
+    /** Checks whether a default progress handler is active
+     * A default handler is active as long the application doesn't
+     * supply its own custom progress handler via #SetProgressHandler().
+     * @return true by default
+     */
+    bool IsDefaultProgressHandler() const;
+
+    // -------------------------------------------------------------------
+    /** @brief Check whether a given set of post-processing flags
+     *  is supported.
+     *
+     *  Some flags are mutually exclusive, others are probably
+     *  not available because your excluded them from your
+     *  Assimp builds. Calling this function is recommended if
+     *  you're unsure.
+     *
+     *  @param pFlags Bitwise combination of the aiPostProcess flags.
+     *  @return true if this flag combination is fine.
+     */
+    bool ValidateFlags(unsigned int pFlags) const;
+
+    // -------------------------------------------------------------------
+    /** Reads the given file and returns its contents if successful.
+     *
+     * If the call succeeds, the contents of the file are returned as a
+     * pointer to an aiScene object. The returned data is intended to be
+     * read-only, the importer object keeps ownership of the data and will
+     * destroy it upon destruction. If the import fails, NULL is returned.
+     * A human-readable error description can be retrieved by calling
+     * GetErrorString(). The previous scene will be deleted during this call.
+     * @param pFile Path and filename to the file to be imported.
+     * @param pFlags Optional post processing steps to be executed after
+     *   a successful import. Provide a bitwise combination of the
+     *   #aiPostProcessSteps flags. If you wish to inspect the imported
+     *   scene first in order to fine-tune your post-processing setup,
+     *   consider to use #ApplyPostProcessing().
+     * @return A pointer to the imported data, NULL if the import failed.
+     *   The pointer to the scene remains in possession of the Importer
+     *   instance. Use GetOrphanedScene() to take ownership of it.
+     *
+     * @note Assimp is able to determine the file format of a file
+     * automatically.
+     */
+    const aiScene* ReadFile(
+        const char* pFile,
+        unsigned int pFlags);
+
+    // -------------------------------------------------------------------
+    /** Reads the given file from a memory buffer and returns its
+     *  contents if successful.
+     *
+     * If the call succeeds, the contents of the file are returned as a
+     * pointer to an aiScene object. The returned data is intended to be
+     * read-only, the importer object keeps ownership of the data and will
+     * destroy it upon destruction. If the import fails, NULL is returned.
+     * A human-readable error description can be retrieved by calling
+     * GetErrorString(). The previous scene will be deleted during this call.
+     * Calling this method doesn't affect the active IOSystem.
+     * @param pBuffer Pointer to the file data
+     * @param pLength Length of pBuffer, in bytes
+     * @param pFlags Optional post processing steps to be executed after
+     *   a successful import. Provide a bitwise combination of the
+     *   #aiPostProcessSteps flags. If you wish to inspect the imported
+     *   scene first in order to fine-tune your post-processing setup,
+     *   consider to use #ApplyPostProcessing().
+     * @param pHint An additional hint to the library. If this is a non
+     *   empty string, the library looks for a loader to support
+     *   the file extension specified by pHint and passes the file to
+     *   the first matching loader. If this loader is unable to completely
+     *   the request, the library continues and tries to determine the
+     *   file format on its own, a task that may or may not be successful.
+     *   Check the return value, and you'll know ...
+     * @return A pointer to the imported data, NULL if the import failed.
+     *   The pointer to the scene remains in possession of the Importer
+     *   instance. Use GetOrphanedScene() to take ownership of it.
+     *
+     * @note This is a straightforward way to decode models from memory
+     * buffers, but it doesn't handle model formats that spread their
+     * data across multiple files or even directories. Examples include
+     * OBJ or MD3, which outsource parts of their material info into
+     * external scripts. If you need full functionality, provide
+     * a custom IOSystem to make Assimp find these files and use
+     * the regular ReadFile() API.
+     */
+    const aiScene* ReadFileFromMemory(
+        const void* pBuffer,
+        size_t pLength,
+        unsigned int pFlags,
+        const char* pHint = "");
+
+    // -------------------------------------------------------------------
+    /** Apply post-processing to an already-imported scene.
+     *
+     *  This is strictly equivalent to calling #ReadFile() with the same
+     *  flags. However, you can use this separate function to inspect
+     *  the imported scene first to fine-tune your post-processing setup.
+     *  @param pFlags Provide a bitwise combination of the
+     *   #aiPostProcessSteps flags.
+     *  @return A pointer to the post-processed data. This is still the
+     *   same as the pointer returned by #ReadFile(). However, if
+     *   post-processing fails, the scene could now be NULL.
+     *   That's quite a rare case, post processing steps are not really
+     *   designed to 'fail'. To be exact, the #aiProcess_ValidateDS
+     *   flag is currently the only post processing step which can actually
+     *   cause the scene to be reset to NULL.
+     *
+     *  @note The method does nothing if no scene is currently bound
+     *    to the #Importer instance.  */
+    const aiScene* ApplyPostProcessing(unsigned int pFlags);
+
+    const aiScene* ApplyCustomizedPostProcessing( BaseProcess *rootProcess, bool requestValidation );
+
+    // -------------------------------------------------------------------
+    /** @brief Reads the given file and returns its contents if successful.
+     *
+     * This function is provided for backward compatibility.
+     * See the const char* version for detailed docs.
+     * @see ReadFile(const char*, pFlags)  */
+    const aiScene* ReadFile(
+        const std::string& pFile,
+        unsigned int pFlags);
+
+    // -------------------------------------------------------------------
+    /** Frees the current scene.
+     *
+     *  The function does nothing if no scene has previously been
+     *  read via ReadFile(). FreeScene() is called automatically by the
+     *  destructor and ReadFile() itself.  */
+    void FreeScene( );
+
+    // -------------------------------------------------------------------
+    /** Returns an error description of an error that occurred in ReadFile().
+     *
+     * Returns an empty string if no error occurred.
+     * @return A description of the last error, an empty string if no
+     *   error occurred. The string is never NULL.
+     *
+     * @note The returned function remains valid until one of the
+     * following methods is called: #ReadFile(), #FreeScene(). */
+    const char* GetErrorString() const;
+
+    // -------------------------------------------------------------------
+    /** Returns the scene loaded by the last successful call to ReadFile()
+     *
+     * @return Current scene or NULL if there is currently no scene loaded */
+    const aiScene* GetScene() const;
+
+    // -------------------------------------------------------------------
+    /** Returns the scene loaded by the last successful call to ReadFile()
+     *  and releases the scene from the ownership of the Importer
+     *  instance. The application is now responsible for deleting the
+     *  scene. Any further calls to GetScene() or GetOrphanedScene()
+     *  will return NULL - until a new scene has been loaded via ReadFile().
+     *
+     * @return Current scene or NULL if there is currently no scene loaded
+     * @note Use this method with maximal caution, and only if you have to.
+     *   By design, aiScene's are exclusively maintained, allocated and
+     *   deallocated by Assimp and no one else. The reasoning behind this
+     *   is the golden rule that deallocations should always be done
+     *   by the module that did the original allocation because heaps
+     *   are not necessarily shared. GetOrphanedScene() enforces you
+     *   to delete the returned scene by yourself, but this will only
+     *   be fine if and only if you're using the same heap as assimp.
+     *   On Windows, it's typically fine provided everything is linked
+     *   against the multithreaded-dll version of the runtime library.
+     *   It will work as well for static linkage with Assimp.*/
+    aiScene* GetOrphanedScene();
+
+    // -------------------------------------------------------------------
+    /** Returns whether a given file extension is supported by ASSIMP.
+     *
+     * @param szExtension Extension to be checked.
+     *   Must include a trailing dot '.'. Example: ".3ds", ".md3".
+     *   Cases-insensitive.
+     * @return true if the extension is supported, false otherwise */
+    bool IsExtensionSupported(const char* szExtension) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns whether a given file extension is supported by ASSIMP.
+     *
+     * This function is provided for backward compatibility.
+     * See the const char* version for detailed and up-to-date docs.
+     * @see IsExtensionSupported(const char*) */
+    inline bool IsExtensionSupported(const std::string& szExtension) const;
+
+    // -------------------------------------------------------------------
+    /** Get a full list of all file extensions supported by ASSIMP.
+     *
+     * If a file extension is contained in the list this does of course not
+     * mean that ASSIMP is able to load all files with this extension ---
+     * it simply means there is an importer loaded which claims to handle
+     * files with this file extension.
+     * @param szOut String to receive the extension list.
+     *   Format of the list: "*.3ds;*.obj;*.dae". This is useful for
+     *   use with the WinAPI call GetOpenFileName(Ex). */
+    void GetExtensionList(aiString& szOut) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Get a full list of all file extensions supported by ASSIMP.
+     *
+     * This function is provided for backward compatibility.
+     * See the aiString version for detailed and up-to-date docs.
+     * @see GetExtensionList(aiString&)*/
+    inline void GetExtensionList(std::string& szOut) const;
+
+    // -------------------------------------------------------------------
+    /** Get the number of importers currently registered with Assimp. */
+    size_t GetImporterCount() const;
+
+    // -------------------------------------------------------------------
+    /** Get meta data for the importer corresponding to a specific index..
+    *
+    *  For the declaration of #aiImporterDesc, include <assimp/importerdesc.h>.
+    *  @param index Index to query, must be within [0,GetImporterCount())
+    *  @return Importer meta data structure, NULL if the index does not
+    *     exist or if the importer doesn't offer meta information (
+    *     importers may do this at the cost of being hated by their peers).*/
+    const aiImporterDesc* GetImporterInfo(size_t index) const;
+
+    // -------------------------------------------------------------------
+    /** Find the importer corresponding to a specific index.
+    *
+    *  @param index Index to query, must be within [0,GetImporterCount())
+    *  @return Importer instance. NULL if the index does not
+    *     exist. */
+    BaseImporter* GetImporter(size_t index) const;
+
+    // -------------------------------------------------------------------
+    /** Find the importer corresponding to a specific file extension.
+    *
+    *  This is quite similar to #IsExtensionSupported except a
+    *  BaseImporter instance is returned.
+    *  @param szExtension Extension to check for. The following formats
+    *    are recognized (BAH being the file extension): "BAH" (comparison
+    *    is case-insensitive), ".bah", "*.bah" (wild card and dot
+    *    characters at the beginning of the extension are skipped).
+    *  @return NULL if no importer is found*/
+    BaseImporter* GetImporter (const char* szExtension) const;
+
+    // -------------------------------------------------------------------
+    /** Find the importer index corresponding to a specific file extension.
+    *
+    *  @param szExtension Extension to check for. The following formats
+    *    are recognized (BAH being the file extension): "BAH" (comparison
+    *    is case-insensitive), ".bah", "*.bah" (wild card and dot
+    *    characters at the beginning of the extension are skipped).
+    *  @return (size_t)-1 if no importer is found */
+    size_t GetImporterIndex (const char* szExtension) const;
+
+    // -------------------------------------------------------------------
+    /** Returns the storage allocated by ASSIMP to hold the scene data
+     * in memory.
+     *
+     * This refers to the currently loaded file, see #ReadFile().
+     * @param in Data structure to be filled.
+     * @note The returned memory statistics refer to the actual
+     *   size of the use data of the aiScene. Heap-related overhead
+     *   is (naturally) not included.*/
+    void GetMemoryRequirements(aiMemoryInfo& in) const;
+
+    // -------------------------------------------------------------------
+    /** Enables "extra verbose" mode.
+     *
+     * 'Extra verbose' means the data structure is validated after *every*
+     * single post processing step to make sure everyone modifies the data
+     * structure in a well-defined manner. This is a debug feature and not
+     * intended for use in production environments. */
+    void SetExtraVerbose(bool bDo);
+
+    // -------------------------------------------------------------------
+    /** Private, do not use. */
+    ImporterPimpl* Pimpl() { return pimpl; }
+    const ImporterPimpl* Pimpl() const { return pimpl; }
+
+protected:
+
+    // Just because we don't want you to know how we're hacking around.
+    ImporterPimpl* pimpl;
+}; //! class Importer
+
+
+// ----------------------------------------------------------------------------
+// For compatibility, the interface of some functions taking a std::string was
+// changed to const char* to avoid crashes between binary incompatible STL
+// versions. This code her is inlined,  so it shouldn't cause any problems.
+// ----------------------------------------------------------------------------
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE const aiScene* Importer::ReadFile( const std::string& pFile,unsigned int pFlags){
+    return ReadFile(pFile.c_str(),pFlags);
+}
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE void Importer::GetExtensionList(std::string& szOut) const   {
+    aiString s;
+    GetExtensionList(s);
+    szOut = s.data;
+}
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE bool Importer::IsExtensionSupported(const std::string& szExtension) const   {
+    return IsExtensionSupported(szExtension.c_str());
+}
+
+} // !namespace Assimp
+
+#endif // AI_ASSIMP_HPP_INC
diff --git a/thirdparty/assimp/include/assimp/LineSplitter.h b/thirdparty/assimp/include/assimp/LineSplitter.h
new file mode 100644
index 0000000000..4afe45b92a
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/LineSplitter.h
@@ -0,0 +1,285 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  LineSplitter.h
+ *  @brief LineSplitter, a helper class to iterate through all lines
+ *    of a file easily. Works with StreamReader.
+ */
+#pragma once
+#ifndef INCLUDED_LINE_SPLITTER_H
+#define INCLUDED_LINE_SPLITTER_H
+
+#include <stdexcept>
+#include "StreamReader.h"
+#include "ParsingUtils.h"
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+/** Usage:
+@code
+for(LineSplitter splitter(stream);splitter;++splitter) {
+
+    if (*splitter == "hi!") {
+       ...
+    }
+    else if (splitter->substr(0,5) == "hello") {
+       ...
+       // access the third token in the line (tokens are space-separated)
+       if (strtol(splitter[2]) > 5) { .. }
+    }
+
+    std::cout << "Current line is: " << splitter.get_index() << std::endl;
+}
+@endcode
+*/
+// ------------------------------------------------------------------------------------------------
+class LineSplitter {
+public:
+    typedef size_t line_idx;
+
+    // -----------------------------------------
+    /** construct from existing stream reader
+    note: trim is *always* assumed true if skyp_empty_lines==true
+    */
+    LineSplitter(StreamReaderLE& stream, bool skip_empty_lines = true, bool trim = true);
+
+    ~LineSplitter();
+
+    // -----------------------------------------
+    /** pseudo-iterator increment */
+    LineSplitter& operator++();
+
+    // -----------------------------------------
+    LineSplitter& operator++(int);
+
+    // -----------------------------------------
+    /** get a pointer to the beginning of a particular token */
+    const char* operator[] (size_t idx) const;
+
+    // -----------------------------------------
+    /** extract the start positions of N tokens from the current line*/
+    template <size_t N>
+    void get_tokens(const char* (&tokens)[N]) const;
+
+    // -----------------------------------------
+    /** member access */
+    const std::string* operator -> () const;
+
+    std::string operator* () const;
+
+    // -----------------------------------------
+    /** boolean context */
+    operator bool() const;
+
+    // -----------------------------------------
+    /** line indices are zero-based, empty lines are included */
+    operator line_idx() const;
+
+    line_idx get_index() const;
+
+    // -----------------------------------------
+    /** access the underlying stream object */
+    StreamReaderLE& get_stream();
+
+    // -----------------------------------------
+    /** !strcmp((*this)->substr(0,strlen(check)),check) */
+    bool match_start(const char* check);
+
+    // -----------------------------------------
+    /** swallow the next call to ++, return the previous value. */
+    void swallow_next_increment();
+
+    LineSplitter( const LineSplitter & ) = delete;
+    LineSplitter(LineSplitter &&) = delete;
+    LineSplitter &operator = ( const LineSplitter & ) = delete;
+
+private:
+    line_idx mIdx;
+    std::string mCur;
+    StreamReaderLE& mStream;
+    bool mSwallow, mSkip_empty_lines, mTrim;
+};
+
+inline
+LineSplitter::LineSplitter(StreamReaderLE& stream, bool skip_empty_lines, bool trim )
+: mIdx(0)
+, mCur()
+, mStream(stream)
+, mSwallow()
+, mSkip_empty_lines(skip_empty_lines)
+, mTrim(trim) {
+    mCur.reserve(1024);
+    operator++();
+    mIdx = 0;
+}
+
+inline
+LineSplitter::~LineSplitter() {
+    // empty
+}
+
+inline
+LineSplitter& LineSplitter::operator++() {
+    if (mSwallow) {
+        mSwallow = false;
+        return *this;
+    }
+
+    if (!*this) {
+        throw std::logic_error("End of file, no more lines to be retrieved.");
+    }
+
+    char s;
+    mCur.clear();
+    while (mStream.GetRemainingSize() && (s = mStream.GetI1(), 1)) {
+        if (s == '\n' || s == '\r') {
+            if (mSkip_empty_lines) {
+                while (mStream.GetRemainingSize() && ((s = mStream.GetI1()) == ' ' || s == '\r' || s == '\n'));
+                if (mStream.GetRemainingSize()) {
+                    mStream.IncPtr(-1);
+                }
+            } else {
+                // skip both potential line terminators but don't read past this line.
+                if (mStream.GetRemainingSize() && (s == '\r' && mStream.GetI1() != '\n')) {
+                    mStream.IncPtr(-1);
+                }
+                if (mTrim) {
+                    while (mStream.GetRemainingSize() && ((s = mStream.GetI1()) == ' ' || s == '\t'));
+                    if (mStream.GetRemainingSize()) {
+                        mStream.IncPtr(-1);
+                    }
+                }
+            }
+            break;
+        }
+        mCur += s;
+    }
+    ++mIdx;
+
+    return *this;
+}
+
+inline
+LineSplitter &LineSplitter::operator++(int) {
+    return ++(*this);
+}
+
+inline
+const char *LineSplitter::operator[] (size_t idx) const {
+    const char* s = operator->()->c_str();
+
+    SkipSpaces(&s);
+    for (size_t i = 0; i < idx; ++i) {
+
+        for (; !IsSpace(*s); ++s) {
+            if (IsLineEnd(*s)) {
+                throw std::range_error("Token index out of range, EOL reached");
+            }
+        }
+        SkipSpaces(&s);
+    }
+    return s;
+}
+
+template <size_t N>
+inline
+void LineSplitter::get_tokens(const char* (&tokens)[N]) const {
+    const char* s = operator->()->c_str();
+
+    SkipSpaces(&s);
+    for (size_t i = 0; i < N; ++i) {
+        if (IsLineEnd(*s)) {
+            throw std::range_error("Token count out of range, EOL reached");
+        }
+        tokens[i] = s;
+
+        for (; *s && !IsSpace(*s); ++s);
+        SkipSpaces(&s);
+    }
+}
+
+inline
+const std::string* LineSplitter::operator -> () const {
+    return &mCur;
+}
+
+inline
+std::string LineSplitter::operator* () const {
+    return mCur;
+}
+
+inline
+LineSplitter::operator bool() const {
+    return mStream.GetRemainingSize() > 0;
+}
+
+inline
+LineSplitter::operator line_idx() const {
+    return mIdx;
+}
+
+inline
+LineSplitter::line_idx LineSplitter::get_index() const {
+    return mIdx;
+}
+
+inline
+StreamReaderLE &LineSplitter::get_stream() {
+    return mStream;
+}
+
+inline
+bool LineSplitter::match_start(const char* check) {
+    const size_t len = ::strlen(check);
+
+    return len <= mCur.length() && std::equal(check, check + len, mCur.begin());
+}
+
+inline
+void LineSplitter::swallow_next_increment() {
+    mSwallow = true;
+}
+
+} // Namespace Assimp
+
+#endif // INCLUDED_LINE_SPLITTER_H
diff --git a/thirdparty/assimp/include/assimp/LogAux.h b/thirdparty/assimp/include/assimp/LogAux.h
new file mode 100644
index 0000000000..558485272e
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/LogAux.h
@@ -0,0 +1,131 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  LogAux.h
+ *  @brief Common logging usage patterns for importer implementations
+ */
+#ifndef INCLUDED_AI_LOGAUX_H
+#define INCLUDED_AI_LOGAUX_H
+
+#include <assimp/TinyFormatter.h>
+#include <assimp/Exceptional.h>
+#include <assimp/DefaultLogger.hpp>
+
+namespace Assimp {
+
+template<class TDeriving>
+class LogFunctions {
+public:
+    // ------------------------------------------------------------------------------------------------
+    static void ThrowException(const std::string& msg)
+    {
+        throw DeadlyImportError(Prefix()+msg);
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogWarn(const Formatter::format& message)   {
+        if (!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_WARN(Prefix()+(std::string)message);
+        }
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogError(const Formatter::format& message)  {
+        if (!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_ERROR(Prefix()+(std::string)message);
+        }
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogInfo(const Formatter::format& message)   {
+        if (!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_INFO(Prefix()+(std::string)message);
+        }
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogDebug(const Formatter::format& message)  {
+        if (!DefaultLogger::isNullLogger()) {
+            ASSIMP_LOG_DEBUG(Prefix()+(std::string)message);
+        }
+    }
+
+    // https://sourceforge.net/tracker/?func=detail&atid=1067632&aid=3358562&group_id=226462
+#if !defined(__GNUC__) || !defined(__APPLE__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogWarn  (const char* message) {
+        if (!DefaultLogger::isNullLogger()) {
+            LogWarn(Formatter::format(message));
+        }
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogError  (const char* message) {
+        if (!DefaultLogger::isNullLogger()) {
+            LogError(Formatter::format(message));
+        }
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogInfo  (const char* message) {
+        if (!DefaultLogger::isNullLogger()) {
+            LogInfo(Formatter::format(message));
+        }
+    }
+
+    // ------------------------------------------------------------------------------------------------
+    static void LogDebug  (const char* message) {
+        if (!DefaultLogger::isNullLogger()) {
+            LogDebug(Formatter::format(message));
+        }
+    }
+
+#endif
+
+private:
+    static const char* Prefix();
+
+};
+} // ! Assimp
+
+#endif
diff --git a/thirdparty/assimp/include/assimp/LogStream.hpp b/thirdparty/assimp/include/assimp/LogStream.hpp
new file mode 100644
index 0000000000..d0281e2d02
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/LogStream.hpp
@@ -0,0 +1,111 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file LogStream.hpp
+ *  @brief Abstract base class 'LogStream', representing an output log stream.
+ */
+#ifndef INCLUDED_AI_LOGSTREAM_H
+#define INCLUDED_AI_LOGSTREAM_H
+
+#include "types.h"
+
+namespace Assimp    {
+
+class IOSystem;
+
+// ------------------------------------------------------------------------------------
+/** @brief CPP-API: Abstract interface for log stream implementations.
+ *
+ *  Several default implementations are provided, see #aiDefaultLogStream for more
+ *  details. Writing your own implementation of LogStream is just necessary if these
+ *  are not enough for your purpose. */
+class ASSIMP_API LogStream
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+protected:
+    /** @brief  Default constructor */
+    LogStream() AI_NO_EXCEPT;
+
+public:
+    /** @brief  Virtual destructor  */
+    virtual ~LogStream();
+
+    // -------------------------------------------------------------------
+    /** @brief  Overwrite this for your own output methods
+     *
+     *  Log messages *may* consist of multiple lines and you shouldn't
+     *  expect a consistent formatting. If you want custom formatting
+     *  (e.g. generate HTML), supply a custom instance of Logger to
+     *  #DefaultLogger:set(). Usually you can *expect* that a log message
+     *  is exactly one line and terminated with a single \n character.
+     *  @param message Message to be written */
+    virtual void write(const char* message) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Creates a default log stream
+     *  @param streams Type of the default stream
+     *  @param name For aiDefaultLogStream_FILE: name of the output file
+     *  @param io For aiDefaultLogStream_FILE: IOSystem to be used to open the output
+     *   file. Pass NULL for the default implementation.
+     *  @return New LogStream instance.  */
+    static LogStream* createDefaultStream(aiDefaultLogStream stream,
+        const char* name = "AssimpLog.txt",
+        IOSystem* io = nullptr );
+
+}; // !class LogStream
+
+inline
+LogStream::LogStream() AI_NO_EXCEPT {
+    // empty
+}
+
+inline
+LogStream::~LogStream() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------
+} // Namespace Assimp
+
+#endif
diff --git a/thirdparty/assimp/include/assimp/Logger.hpp b/thirdparty/assimp/include/assimp/Logger.hpp
new file mode 100644
index 0000000000..89cade6c33
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Logger.hpp
@@ -0,0 +1,305 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Logger.hpp
+ *  @brief Abstract base class 'Logger', base of the logging system.
+ */
+#ifndef INCLUDED_AI_LOGGER_H
+#define INCLUDED_AI_LOGGER_H
+
+#include <assimp/types.h>
+#include <assimp/TinyFormatter.h>
+
+namespace Assimp {
+
+class LogStream;
+
+// Maximum length of a log message. Longer messages are rejected.
+#define MAX_LOG_MESSAGE_LENGTH 1024u
+
+// ----------------------------------------------------------------------------------
+/** @brief CPP-API: Abstract interface for logger implementations.
+ *  Assimp provides a default implementation and uses it for almost all
+ *  logging stuff ('DefaultLogger'). This class defines just basic logging
+ *  behavior and is not of interest for you. Instead, take a look at #DefaultLogger. */
+class ASSIMP_API Logger
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+public:
+
+    // ----------------------------------------------------------------------
+    /** @enum   LogSeverity
+     *  @brief  Log severity to describe the granularity of logging.
+     */
+    enum LogSeverity {
+        NORMAL,     //!< Normal granularity of logging
+        VERBOSE     //!< Debug infos will be logged, too
+    };
+
+    // ----------------------------------------------------------------------
+    /** @enum   ErrorSeverity
+     *  @brief  Description for severity of a log message.
+     *
+     *  Every LogStream has a bitwise combination of these flags.
+     *  A LogStream doesn't receive any messages of a specific type
+     *  if it doesn't specify the corresponding ErrorSeverity flag.
+     */
+    enum ErrorSeverity {
+        Debugging   = 1,    //!< Debug log message
+        Info        = 2,    //!< Info log message
+        Warn        = 4,    //!< Warn log message
+        Err         = 8     //!< Error log message
+    };
+
+public:
+
+    /** @brief  Virtual destructor */
+    virtual ~Logger();
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes a debug message
+     *   @param message Debug message*/
+    void debug(const char* message);
+    void debug(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes a info message
+     *  @param  message Info message*/
+    void info(const char* message);
+    void info(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes a warning message
+     *  @param  message Warn message*/
+    void warn(const char* message);
+    void warn(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes an error message
+     *  @param  message Error message*/
+    void error(const char* message);
+    void error(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Set a new log severity.
+     *  @param  log_severity New severity for logging*/
+    void setLogSeverity(LogSeverity log_severity);
+
+    // ----------------------------------------------------------------------
+    /** @brief Get the current log severity*/
+    LogSeverity getLogSeverity() const;
+
+    // ----------------------------------------------------------------------
+    /** @brief  Attach a new log-stream
+     *
+     *  The logger takes ownership of the stream and is responsible
+     *  for its destruction (which is done using ::delete when the logger
+     *  itself is destroyed). Call detachStream to detach a stream and to
+     *  gain ownership of it again.
+     *   @param pStream  Log-stream to attach
+     *  @param severity  Message filter, specified which types of log
+     *    messages are dispatched to the stream. Provide a bitwise
+     *    combination of the ErrorSeverity flags.
+     *  @return true if the stream has been attached, false otherwise.*/
+    virtual bool attachStream(LogStream *pStream,
+        unsigned int severity = Debugging | Err | Warn | Info) = 0;
+
+    // ----------------------------------------------------------------------
+    /** @brief  Detach a still attached stream from the logger (or
+     *          modify the filter flags bits)
+     *   @param pStream Log-stream instance for detaching
+     *  @param severity Provide a bitwise combination of the ErrorSeverity
+     *    flags. This value is &~ed with the current flags of the stream,
+     *    if the result is 0 the stream is detached from the Logger and
+     *    the caller retakes the possession of the stream.
+     *  @return true if the stream has been detached, false otherwise.*/
+    virtual bool detatchStream(LogStream *pStream,
+        unsigned int severity = Debugging | Err | Warn | Info) = 0;
+
+protected:
+    /**
+     *  Default constructor
+     */
+    Logger() AI_NO_EXCEPT;
+
+    /**
+     *  Construction with a given log severity
+     */
+    explicit Logger(LogSeverity severity);
+
+    // ----------------------------------------------------------------------
+    /**
+     *  @brief Called as a request to write a specific debug message
+     *  @param  message Debug message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (excluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnDebug(const char* message)= 0;
+
+    // ----------------------------------------------------------------------
+    /**
+     *  @brief Called as a request to write a specific info message
+     *  @param  message Info message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (ecxluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnInfo(const char* message) = 0;
+
+    // ----------------------------------------------------------------------
+    /**
+     *  @brief Called as a request to write a specific warn message
+     *  @param  message Warn message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (exluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnWarn(const char* essage) = 0;
+
+    // ----------------------------------------------------------------------
+    /**
+     *  @brief Called as a request to write a specific error message
+     *  @param  message Error message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (exluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnError(const char* message) = 0;
+
+protected:
+    LogSeverity m_Severity;
+};
+
+// ----------------------------------------------------------------------------------
+//  Default constructor
+inline
+Logger::Logger() AI_NO_EXCEPT
+: m_Severity(NORMAL) {
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+//  Virtual destructor
+inline
+Logger::~Logger() {
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+// Construction with given logging severity
+inline
+Logger::Logger(LogSeverity severity)
+: m_Severity(severity) {
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+// Log severity setter
+inline
+void Logger::setLogSeverity(LogSeverity log_severity){
+    m_Severity = log_severity;
+}
+
+// ----------------------------------------------------------------------------------
+// Log severity getter
+inline
+Logger::LogSeverity Logger::getLogSeverity() const {
+    return m_Severity;
+}
+
+// ----------------------------------------------------------------------------------
+inline
+void Logger::debug(const std::string &message) {
+    return debug(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+inline
+void Logger::error(const std::string &message) {
+    return error(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+inline
+void Logger::warn(const std::string &message) {
+    return warn(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+inline
+void Logger::info(const std::string &message) {
+    return info(message.c_str());
+}
+
+// ------------------------------------------------------------------------------------------------
+#define ASSIMP_LOG_WARN_F(string,...)\
+    DefaultLogger::get()->warn((Formatter::format(string),__VA_ARGS__))
+
+#define ASSIMP_LOG_ERROR_F(string,...)\
+    DefaultLogger::get()->error((Formatter::format(string),__VA_ARGS__))
+
+#define ASSIMP_LOG_DEBUG_F(string,...)\
+    DefaultLogger::get()->debug((Formatter::format(string),__VA_ARGS__))
+
+#define ASSIMP_LOG_INFO_F(string,...)\
+    DefaultLogger::get()->info((Formatter::format(string),__VA_ARGS__))
+
+
+#define ASSIMP_LOG_WARN(string)\
+    DefaultLogger::get()->warn(string)
+
+#define ASSIMP_LOG_ERROR(string)\
+    DefaultLogger::get()->error(string)
+
+#define ASSIMP_LOG_DEBUG(string)\
+    DefaultLogger::get()->debug(string)
+
+#define ASSIMP_LOG_INFO(string)\
+    DefaultLogger::get()->info(string)
+
+
+} // Namespace Assimp
+
+#endif // !! INCLUDED_AI_LOGGER_H
diff --git a/thirdparty/assimp/include/assimp/Macros.h b/thirdparty/assimp/include/assimp/Macros.h
new file mode 100644
index 0000000000..6515303372
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Macros.h
@@ -0,0 +1,49 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/* Helper macro to set a pointer to NULL in debug builds
+ */
+#if (defined ASSIMP_BUILD_DEBUG)
+#   define AI_DEBUG_INVALIDATE_PTR(x) x = NULL;
+#else
+#   define AI_DEBUG_INVALIDATE_PTR(x)
+#endif
+
diff --git a/thirdparty/assimp/include/assimp/MathFunctions.h b/thirdparty/assimp/include/assimp/MathFunctions.h
new file mode 100644
index 0000000000..cb3b696076
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/MathFunctions.h
@@ -0,0 +1,77 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2016, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  MathFunctions.h
+ *  @brief Implementation of the math functions (gcd and lcm)
+ *
+ *  Copied from BoostWorkaround/math
+ */
+
+namespace Assimp {
+namespace Math {
+
+// TODO: use binary GCD for unsigned integers ....
+template < typename IntegerType >
+IntegerType  gcd( IntegerType a, IntegerType b )
+{
+	const IntegerType zero = (IntegerType)0;
+	while ( true )
+	{
+		if ( a == zero )
+			return b;
+		b %= a;
+
+		if ( b == zero )
+			return a;
+		a %= b;
+	}
+}
+
+template < typename IntegerType >
+IntegerType  lcm( IntegerType a, IntegerType b )
+{
+	const IntegerType t = gcd (a,b);
+	if (!t)return t;
+	return a / t * b;
+}
+
+}
+}
diff --git a/thirdparty/assimp/include/assimp/MemoryIOWrapper.h b/thirdparty/assimp/include/assimp/MemoryIOWrapper.h
new file mode 100644
index 0000000000..c522787184
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/MemoryIOWrapper.h
@@ -0,0 +1,244 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file MemoryIOWrapper.h
+ *  Handy IOStream/IOSystem implemetation to read directly from a memory buffer */
+#ifndef AI_MEMORYIOSTREAM_H_INC
+#define AI_MEMORYIOSTREAM_H_INC
+
+#include <assimp/IOStream.hpp>
+#include <assimp/IOSystem.hpp>
+#include <assimp/ai_assert.h>
+#include <stdint.h>
+
+namespace Assimp    {
+    
+#define AI_MEMORYIO_MAGIC_FILENAME "$$$___magic___$$$"
+#define AI_MEMORYIO_MAGIC_FILENAME_LENGTH 17
+
+// ----------------------------------------------------------------------------------
+/** Implementation of IOStream to read directly from a memory buffer */
+// ----------------------------------------------------------------------------------
+class MemoryIOStream : public IOStream {
+public:
+    MemoryIOStream (const uint8_t* buff, size_t len, bool own = false)
+    : buffer (buff)
+    , length(len)
+    , pos((size_t)0)
+    , own(own) {
+        // empty
+    }
+
+    ~MemoryIOStream ()  {
+        if(own) {
+            delete[] buffer;
+        }
+    }
+
+    // -------------------------------------------------------------------
+    // Read from stream
+    size_t Read(void* pvBuffer, size_t pSize, size_t pCount)    {
+        ai_assert(nullptr != pvBuffer);
+        ai_assert(0 != pSize);
+        
+        const size_t cnt = std::min( pCount, (length-pos) / pSize);
+        const size_t ofs = pSize * cnt;
+
+        ::memcpy(pvBuffer,buffer+pos,ofs);
+        pos += ofs;
+
+        return cnt;
+    }
+
+    // -------------------------------------------------------------------
+    // Write to stream
+    size_t Write(const void* /*pvBuffer*/, size_t /*pSize*/,size_t /*pCount*/)  {
+        ai_assert(false); // won't be needed
+        return 0;
+    }
+
+    // -------------------------------------------------------------------
+    // Seek specific position
+    aiReturn Seek(size_t pOffset, aiOrigin pOrigin) {
+        if (aiOrigin_SET == pOrigin) {
+            if (pOffset > length) {
+                return AI_FAILURE;
+            }
+            pos = pOffset;
+        } else if (aiOrigin_END == pOrigin) {
+            if (pOffset > length) {
+                return AI_FAILURE;
+            }
+            pos = length-pOffset;
+        } else {
+            if (pOffset+pos > length) {
+                return AI_FAILURE;
+            }
+            pos += pOffset;
+        }
+        return AI_SUCCESS;
+    }
+
+    // -------------------------------------------------------------------
+    // Get current seek position
+    size_t Tell() const {
+        return pos;
+    }
+
+    // -------------------------------------------------------------------
+    // Get size of file
+    size_t FileSize() const {
+        return length;
+    }
+
+    // -------------------------------------------------------------------
+    // Flush file contents
+    void Flush() {
+        ai_assert(false); // won't be needed
+    }
+
+private:
+    const uint8_t* buffer;
+    size_t length,pos;
+    bool own;
+};
+
+// ---------------------------------------------------------------------------
+/** Dummy IO system to read from a memory buffer */
+class MemoryIOSystem : public IOSystem {
+public:
+    /** Constructor. */
+    MemoryIOSystem(const uint8_t* buff, size_t len, IOSystem* io)
+    : buffer(buff)
+    , length(len)
+    , existing_io(io)
+    , created_streams() {
+        // empty
+    }
+
+    /** Destructor. */
+    ~MemoryIOSystem() {
+    }
+
+    // -------------------------------------------------------------------
+    /** Tests for the existence of a file at the given path. */
+    bool Exists(const char* pFile) const override {
+        if (0 == strncmp( pFile, AI_MEMORYIO_MAGIC_FILENAME, AI_MEMORYIO_MAGIC_FILENAME_LENGTH ) ) {
+            return true;
+        }
+        return existing_io ? existing_io->Exists(pFile) : false;
+    }
+
+    // -------------------------------------------------------------------
+    /** Returns the directory separator. */
+    char getOsSeparator() const override {
+        return existing_io ? existing_io->getOsSeparator()
+                           : '/';  // why not? it doesn't care
+    }
+
+    // -------------------------------------------------------------------
+    /** Open a new file with a given path. */
+    IOStream* Open(const char* pFile, const char* pMode = "rb") override {
+        if ( 0 == strncmp( pFile, AI_MEMORYIO_MAGIC_FILENAME, AI_MEMORYIO_MAGIC_FILENAME_LENGTH ) ) {
+            created_streams.emplace_back(new MemoryIOStream(buffer, length));
+            return created_streams.back();
+        }
+        return existing_io ? existing_io->Open(pFile, pMode) : NULL;
+    }
+
+    // -------------------------------------------------------------------
+    /** Closes the given file and releases all resources associated with it. */
+    void Close( IOStream* pFile) override {
+        auto it = std::find(created_streams.begin(), created_streams.end(), pFile);
+        if (it != created_streams.end()) {
+            delete pFile;
+            created_streams.erase(it);
+        } else if (existing_io) {
+            existing_io->Close(pFile);
+        }
+    }
+
+    // -------------------------------------------------------------------
+    /** Compare two paths */
+    bool ComparePaths(const char* one, const char* second) const override {
+        return existing_io ? existing_io->ComparePaths(one, second) : false;
+    }
+
+    bool PushDirectory( const std::string &path ) override { 
+        return existing_io ? existing_io->PushDirectory(path) : false;
+    }
+
+    const std::string &CurrentDirectory() const override {
+        static std::string empty;
+        return existing_io ? existing_io->CurrentDirectory() : empty;
+    }
+
+    size_t StackSize() const override {
+        return existing_io ? existing_io->StackSize() : 0;
+    }
+
+    bool PopDirectory() override {
+        return existing_io ? existing_io->PopDirectory() : false;
+    }
+
+    bool CreateDirectory( const std::string &path ) override {
+        return existing_io ? existing_io->CreateDirectory(path) : false;
+    }
+
+    bool ChangeDirectory( const std::string &path ) override {
+        return existing_io ? existing_io->ChangeDirectory(path) : false;
+    }
+
+    bool DeleteFile( const std::string &file ) override {
+        return existing_io ? existing_io->DeleteFile(file) : false;
+    }
+
+private:
+    const uint8_t* buffer;
+    size_t length;
+    IOSystem* existing_io;
+    std::vector<IOStream*> created_streams;
+};
+
+} // end namespace Assimp
+
+#endif
diff --git a/thirdparty/assimp/include/assimp/NullLogger.hpp b/thirdparty/assimp/include/assimp/NullLogger.hpp
new file mode 100644
index 0000000000..c45d01bd48
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/NullLogger.hpp
@@ -0,0 +1,99 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  NullLogger.hpp
+ *  @brief Dummy logger
+*/
+
+#ifndef INCLUDED_AI_NULLLOGGER_H
+#define INCLUDED_AI_NULLLOGGER_H
+
+#include "Logger.hpp"
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** @brief CPP-API: Empty logging implementation.
+ *
+ * Does nothing! Used by default if the application hasn't requested a
+ * custom logger via #DefaultLogger::set() or #DefaultLogger::create(); */
+class ASSIMP_API NullLogger
+    : public Logger {
+
+public:
+
+    /** @brief  Logs a debug message */
+    void OnDebug(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Logs an info message */
+    void OnInfo(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Logs a warning message */
+    void OnWarn(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Logs an error message */
+    void OnError(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Detach a still attached stream from logger */
+    bool attachStream(LogStream *pStream, unsigned int severity) {
+        (void)pStream; (void)severity; //this avoids compiler warnings
+        return false;
+    }
+
+    /** @brief  Detach a still attached stream from logger */
+    bool detatchStream(LogStream *pStream, unsigned int severity) {
+        (void)pStream; (void)severity; //this avoids compiler warnings
+        return false;
+    }
+
+private:
+};
+}
+#endif // !! AI_NULLLOGGER_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/ParsingUtils.h b/thirdparty/assimp/include/assimp/ParsingUtils.h
new file mode 100644
index 0000000000..ca30ce13b0
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/ParsingUtils.h
@@ -0,0 +1,260 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+
+/** @file ParsingUtils.h
+ *  @brief Defines helper functions for text parsing
+ */
+#ifndef AI_PARSING_UTILS_H_INC
+#define AI_PARSING_UTILS_H_INC
+
+#include "StringComparison.h"
+#include "StringUtils.h"
+#include <assimp/defs.h>
+
+namespace Assimp {
+
+// NOTE: the functions below are mostly intended as replacement for
+// std::upper, std::lower, std::isupper, std::islower, std::isspace.
+// we don't bother of locales. We don't want them. We want reliable
+// (i.e. identical) results across all locales.
+
+// The functions below accept any character type, but know only
+// about ASCII. However, UTF-32 is the only safe ASCII superset to
+// use since it doesn't have multi-byte sequences.
+
+static const unsigned int BufferSize = 4096;
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+char_t ToLower( char_t in ) {
+    return (in >= (char_t)'A' && in <= (char_t)'Z') ? (char_t)(in+0x20) : in;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+char_t ToUpper( char_t in) {
+    return (in >= (char_t)'a' && in <= (char_t)'z') ? (char_t)(in-0x20) : in;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool IsUpper( char_t in) {
+    return (in >= (char_t)'A' && in <= (char_t)'Z');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool IsLower( char_t in) {
+    return (in >= (char_t)'a' && in <= (char_t)'z');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool IsSpace( char_t in) {
+    return (in == (char_t)' ' || in == (char_t)'\t');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool IsLineEnd( char_t in) {
+    return (in==(char_t)'\r'||in==(char_t)'\n'||in==(char_t)'\0'||in==(char_t)'\f');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool IsSpaceOrNewLine( char_t in) {
+    return IsSpace<char_t>(in) || IsLineEnd<char_t>(in);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool SkipSpaces( const char_t* in, const char_t** out) {
+    while( *in == ( char_t )' ' || *in == ( char_t )'\t' ) {
+        ++in;
+    }
+    *out = in;
+    return !IsLineEnd<char_t>(*in);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool SkipSpaces( const char_t** inout) {
+    return SkipSpaces<char_t>(*inout,inout);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool SkipLine( const char_t* in, const char_t** out) {
+    while( *in != ( char_t )'\r' && *in != ( char_t )'\n' && *in != ( char_t )'\0' ) {
+        ++in;
+    }
+
+    // files are opened in binary mode. Ergo there are both NL and CR
+    while( *in == ( char_t )'\r' || *in == ( char_t )'\n' ) {
+        ++in;
+    }
+    *out = in;
+    return *in != (char_t)'\0';
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool SkipLine( const char_t** inout) {
+    return SkipLine<char_t>(*inout,inout);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool SkipSpacesAndLineEnd( const char_t* in, const char_t** out) {
+    while( *in == ( char_t )' ' || *in == ( char_t )'\t' || *in == ( char_t )'\r' || *in == ( char_t )'\n' ) {
+        ++in;
+    }
+    *out = in;
+    return *in != '\0';
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool SkipSpacesAndLineEnd( const char_t** inout) {
+    return SkipSpacesAndLineEnd<char_t>(*inout,inout);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool GetNextLine( const char_t*& buffer, char_t out[ BufferSize ] ) {
+    if( ( char_t )'\0' == *buffer ) {
+        return false;
+    }
+
+    char* _out = out;
+    char* const end = _out + BufferSize;
+    while( !IsLineEnd( *buffer ) && _out < end ) {
+        *_out++ = *buffer++;
+    }
+    *_out = (char_t)'\0';
+
+    while( IsLineEnd( *buffer ) && '\0' != *buffer ) {
+        ++buffer;
+    }
+
+    return true;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsNumeric( char_t in)
+{
+    return ( in >= '0' && in <= '9' ) || '-' == in || '+' == in;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE
+bool TokenMatch(char_t*& in, const char* token, unsigned int len)
+{
+    if (!::strncmp(token,in,len) && IsSpaceOrNewLine(in[len])) {
+        if (in[len] != '\0') {
+            in += len+1;
+        } else {
+            // If EOF after the token make sure we don't go past end of buffer
+            in += len;
+        }
+        return true;
+    }
+
+    return false;
+}
+// ---------------------------------------------------------------------------------
+/** @brief Case-ignoring version of TokenMatch
+ *  @param in Input
+ *  @param token Token to check for
+ *  @param len Number of characters to check
+ */
+AI_FORCE_INLINE
+bool TokenMatchI(const char*& in, const char* token, unsigned int len) {
+    if (!ASSIMP_strincmp(token,in,len) && IsSpaceOrNewLine(in[len])) {
+        in += len+1;
+        return true;
+    }
+    return false;
+}
+
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE
+void SkipToken(const char*& in) {
+    SkipSpaces(&in);
+    while ( !IsSpaceOrNewLine( *in ) ) {
+        ++in;
+    }
+}
+
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE
+std::string GetNextToken(const char*& in) {
+    SkipSpacesAndLineEnd(&in);
+    const char* cur = in;
+    while ( !IsSpaceOrNewLine( *in ) ) {
+        ++in;
+    }
+    return std::string(cur,(size_t)(in-cur));
+}
+
+// ---------------------------------------------------------------------------------
+
+} // ! namespace Assimp
+
+#endif // ! AI_PARSING_UTILS_H_INC
diff --git a/thirdparty/assimp/include/assimp/Profiler.h b/thirdparty/assimp/include/assimp/Profiler.h
new file mode 100644
index 0000000000..6ff9d41c0a
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Profiler.h
@@ -0,0 +1,99 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Profiler.h
+ *  @brief Utility to measure the respective runtime of each import step
+ */
+#ifndef INCLUDED_PROFILER_H
+#define INCLUDED_PROFILER_H
+
+#include <chrono>
+#include <assimp/DefaultLogger.hpp>
+#include "TinyFormatter.h"
+
+#include <map>
+
+namespace Assimp {
+namespace Profiling {
+
+using namespace Formatter;
+
+// ------------------------------------------------------------------------------------------------
+/** Simple wrapper around boost::timer to simplify reporting. Timings are automatically
+ *  dumped to the log file.
+ */
+class Profiler {
+public:
+    Profiler() {
+        // empty
+    }
+
+public:
+
+    /** Start a named timer */
+    void BeginRegion(const std::string& region) {
+        regions[region] = std::chrono::system_clock::now();
+        ASSIMP_LOG_DEBUG((format("START `"),region,"`"));
+    }
+
+
+    /** End a specific named timer and write its end time to the log */
+    void EndRegion(const std::string& region) {
+        RegionMap::const_iterator it = regions.find(region);
+        if (it == regions.end()) {
+            return;
+        }
+
+        std::chrono::duration<double> elapsedSeconds = std::chrono::system_clock::now() - regions[region];
+        ASSIMP_LOG_DEBUG((format("END   `"),region,"`, dt= ", elapsedSeconds.count()," s"));
+    }
+
+private:
+    typedef std::map<std::string,std::chrono::time_point<std::chrono::system_clock>> RegionMap;
+    RegionMap regions;
+};
+
+}
+}
+
+#endif
+
diff --git a/thirdparty/assimp/include/assimp/ProgressHandler.hpp b/thirdparty/assimp/include/assimp/ProgressHandler.hpp
new file mode 100644
index 0000000000..4e47f1d0a6
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/ProgressHandler.hpp
@@ -0,0 +1,145 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file ProgressHandler.hpp
+ *  @brief Abstract base class 'ProgressHandler'.
+ */
+#pragma once
+#ifndef AI_PROGRESSHANDLER_H_INC
+#define AI_PROGRESSHANDLER_H_INC
+
+#include "types.h"
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------------
+/** @brief CPP-API: Abstract interface for custom progress report receivers.
+ *
+ *  Each #Importer instance maintains its own #ProgressHandler. The default
+ *  implementation provided by Assimp doesn't do anything at all. */
+class ASSIMP_API ProgressHandler
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+protected:
+    /// @brief  Default constructor
+    ProgressHandler () AI_NO_EXCEPT {
+        // empty
+    }
+
+public:
+    /// @brief  Virtual destructor.
+    virtual ~ProgressHandler () {
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback.
+     *  @param percentage An estimate of the current loading progress,
+     *    in percent. Or -1.f if such an estimate is not available.
+     *
+     *  There are restriction on what you may do from within your
+     *  implementation of this method: no exceptions may be thrown and no
+     *  non-const #Importer methods may be called. It is
+     *  not generally possible to predict the number of callbacks
+     *  fired during a single import.
+     *
+     *  @return Return false to abort loading at the next possible
+     *   occasion (loaders and Assimp are generally allowed to perform
+     *   all needed cleanup tasks prior to returning control to the
+     *   caller). If the loading is aborted, #Importer::ReadFile()
+     *   returns always NULL.
+     *   */
+    virtual bool Update(float percentage = -1.f) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback for file loading steps
+     *  @param numberOfSteps The number of total post-processing
+     *   steps
+     *  @param currentStep The index of the current post-processing
+     *   step that will run, or equal to numberOfSteps if all of
+     *   them has finished. This number is always strictly monotone
+     *   increasing, although not necessarily linearly.
+     *
+     *  @note This is currently only used at the start and the end
+     *   of the file parsing.
+     *   */
+    virtual void UpdateFileRead(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
+        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
+        Update( f * 0.5f );
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback for post-processing steps
+     *  @param numberOfSteps The number of total post-processing
+     *   steps
+     *  @param currentStep The index of the current post-processing
+     *   step that will run, or equal to numberOfSteps if all of
+     *   them has finished. This number is always strictly monotone
+     *   increasing, although not necessarily linearly.
+     *   */
+    virtual void UpdatePostProcess(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
+        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
+        Update( f * 0.5f + 0.5f );
+    }
+
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback for export steps.
+     *  @param numberOfSteps The number of total processing
+     *   steps
+     *  @param currentStep The index of the current post-processing
+     *   step that will run, or equal to numberOfSteps if all of
+     *   them has finished. This number is always strictly monotone
+     *   increasing, although not necessarily linearly.
+     *   */
+    virtual void UpdateFileWrite(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
+        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
+        Update(f * 0.5f);
+    }
+}; // !class ProgressHandler
+
+// ------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // AI_PROGRESSHANDLER_H_INC
diff --git a/thirdparty/assimp/include/assimp/RemoveComments.h b/thirdparty/assimp/include/assimp/RemoveComments.h
new file mode 100644
index 0000000000..404b496719
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/RemoveComments.h
@@ -0,0 +1,91 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Declares a helper class, "CommentRemover", which can be
+ *  used to remove comments (single and multi line) from a text file.
+ */
+#ifndef AI_REMOVE_COMMENTS_H_INC
+#define AI_REMOVE_COMMENTS_H_INC
+
+
+#include <assimp/defs.h>
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper class to remove single and multi line comments from a file
+ *
+ *  Some mesh formats like MD5 have comments that are quite similar
+ *  to those in C or C++ so this code has been moved to a separate
+ *  module.
+ */
+class ASSIMP_API CommentRemover
+{
+    // class cannot be instanced
+    CommentRemover() {}
+
+public:
+
+    //! Remove single-line comments. The end of a line is
+    //! expected to be either NL or CR or NLCR.
+    //! \param szComment The start sequence of the comment, e.g. "//"
+    //! \param szBuffer Buffer to work with
+    //! \param chReplacement Character to be used as replacement
+    //! for commented lines. By default this is ' '
+    static void RemoveLineComments(const char* szComment,
+        char* szBuffer, char chReplacement = ' ');
+
+    //! Remove multi-line comments. The end of a line is
+    //! expected to be either NL or CR or NLCR. Multi-line comments
+    //! may not be nested (as in C).
+    //! \param szCommentStart The start sequence of the comment, e.g. "/*"
+    //! \param szCommentEnd The end sequence of the comment, e.g. "*/"
+    //! \param szBuffer Buffer to work with
+    //! \param chReplacement Character to be used as replacement
+    //! for commented lines. By default this is ' '
+    static void RemoveMultiLineComments(const char* szCommentStart,
+        const char* szCommentEnd,char* szBuffer,
+        char chReplacement = ' ');
+};
+} // ! Assimp
+
+#endif // !! AI_REMOVE_COMMENTS_H_INC
diff --git a/thirdparty/assimp/include/assimp/SGSpatialSort.h b/thirdparty/assimp/include/assimp/SGSpatialSort.h
new file mode 100644
index 0000000000..5b4f3f41f2
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/SGSpatialSort.h
@@ -0,0 +1,150 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Small helper classes to optimize finding vertices close to a given location
+ */
+#ifndef AI_D3DSSPATIALSORT_H_INC
+#define AI_D3DSSPATIALSORT_H_INC
+
+#include <assimp/types.h>
+#include <vector>
+#include <stdint.h>
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+/** Specialized version of SpatialSort to support smoothing groups
+ *  This is used in by the 3DS, ASE and LWO loaders. 3DS and ASE share their
+ *  normal computation code in SmoothingGroups.inl, the LWO loader has its own
+ *  implementation to handle all details of its file format correctly.
+ */
+// ----------------------------------------------------------------------------------
+class ASSIMP_API SGSpatialSort
+{
+public:
+
+    SGSpatialSort();
+
+    // -------------------------------------------------------------------
+    /** Construction from a given face array, handling smoothing groups
+     *  properly
+     */
+    explicit SGSpatialSort(const std::vector<aiVector3D>& vPositions);
+
+    // -------------------------------------------------------------------
+    /** Add a vertex to the spatial sort
+     * @param vPosition Vertex position to be added
+     * @param index Index of the vrtex
+     * @param smoothingGroup SmoothingGroup for this vertex
+     */
+    void Add(const aiVector3D& vPosition, unsigned int index,
+        unsigned int smoothingGroup);
+
+    // -------------------------------------------------------------------
+    /** Prepare the spatial sorter for use. This step runs in O(logn)
+     */
+    void Prepare();
+
+    /** Destructor */
+    ~SGSpatialSort();
+
+    // -------------------------------------------------------------------
+    /** Returns an iterator for all positions close to the given position.
+     * @param pPosition The position to look for vertices.
+     * @param pSG Only included vertices with at least one shared smooth group
+     * @param pRadius Maximal distance from the position a vertex may have
+     *   to be counted in.
+     * @param poResults The container to store the indices of the found
+     *   positions. Will be emptied by the call so it may contain anything.
+     * @param exactMatch Specifies whether smoothing groups are bit masks
+     *   (false) or integral values (true). In the latter case, a vertex
+     *   cannot belong to more than one smoothing group.
+     * @return An iterator to iterate over all vertices in the given area.
+     */
+    // -------------------------------------------------------------------
+    void FindPositions( const aiVector3D& pPosition, uint32_t pSG,
+        float pRadius, std::vector<unsigned int>& poResults,
+        bool exactMatch = false) const;
+
+protected:
+    /** Normal of the sorting plane, normalized. The center is always at (0, 0, 0) */
+    aiVector3D mPlaneNormal;
+
+    // -------------------------------------------------------------------
+    /** An entry in a spatially sorted position array. Consists of a
+     *  vertex index, its position and its pre-calculated distance from
+     *  the reference plane */
+    // -------------------------------------------------------------------
+    struct Entry {
+        unsigned int mIndex;    ///< The vertex referred by this entry
+        aiVector3D mPosition;   ///< Position
+        uint32_t mSmoothGroups;
+        float mDistance;        ///< Distance of this vertex to the sorting plane
+
+        Entry() AI_NO_EXCEPT
+        : mIndex(0)
+        , mPosition()
+        , mSmoothGroups(0)
+        , mDistance(0.0f) {
+            // empty
+        }
+
+        Entry( unsigned int pIndex, const aiVector3D& pPosition, float pDistance,uint32_t pSG)
+        : mIndex( pIndex)
+        , mPosition( pPosition)
+        , mSmoothGroups(pSG)
+        , mDistance( pDistance) {
+            // empty
+        }
+
+        bool operator < (const Entry& e) const {
+            return mDistance < e.mDistance;
+        }
+    };
+
+    // all positions, sorted by distance to the sorting plane
+    std::vector<Entry> mPositions;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_SPATIALSORT_H_INC
diff --git a/thirdparty/assimp/include/assimp/SceneCombiner.h b/thirdparty/assimp/include/assimp/SceneCombiner.h
new file mode 100644
index 0000000000..679a2acea4
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/SceneCombiner.h
@@ -0,0 +1,401 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Declares a helper class, "SceneCombiner" providing various
+ *  utilities to merge scenes.
+ */
+#ifndef AI_SCENE_COMBINER_H_INC
+#define AI_SCENE_COMBINER_H_INC
+
+#include <assimp/ai_assert.h>
+#include <assimp/types.h>
+#include <assimp/Defines.h>
+#include <stddef.h>
+#include <set>
+#include <list>
+#include <stdint.h>
+
+#include <vector>
+
+struct aiScene;
+struct aiNode;
+struct aiMaterial;
+struct aiTexture;
+struct aiCamera;
+struct aiLight;
+struct aiMetadata;
+struct aiBone;
+struct aiMesh;
+struct aiAnimation;
+struct aiNodeAnim;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper data structure for SceneCombiner.
+ *
+ *  Describes to which node a scene must be attached to.
+ */
+struct AttachmentInfo
+{
+    AttachmentInfo()
+        :   scene           (NULL)
+        ,   attachToNode    (NULL)
+    {}
+
+    AttachmentInfo(aiScene* _scene, aiNode* _attachToNode)
+        :   scene           (_scene)
+        ,   attachToNode    (_attachToNode)
+    {}
+
+    aiScene* scene;
+    aiNode*  attachToNode;
+};
+
+// ---------------------------------------------------------------------------
+struct NodeAttachmentInfo
+{
+    NodeAttachmentInfo()
+        :   node            (NULL)
+        ,   attachToNode    (NULL)
+        ,   resolved        (false)
+        ,   src_idx         (SIZE_MAX)
+    {}
+
+    NodeAttachmentInfo(aiNode* _scene, aiNode* _attachToNode,size_t idx)
+        :   node            (_scene)
+        ,   attachToNode    (_attachToNode)
+        ,   resolved        (false)
+        ,   src_idx         (idx)
+    {}
+
+    aiNode*  node;
+    aiNode*  attachToNode;
+    bool     resolved;
+    size_t   src_idx;
+};
+
+// ---------------------------------------------------------------------------
+/** @def AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES
+ *  Generate unique names for all named scene items
+ */
+#define AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES      0x1
+
+/** @def AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES
+ *  Generate unique names for materials, too.
+ *  This is not absolutely required to pass the validation.
+ */
+#define AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES   0x2
+
+/** @def AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY
+ * Use deep copies of duplicate scenes
+ */
+#define AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY   0x4
+
+/** @def AI_INT_MERGE_SCENE_RESOLVE_CROSS_ATTACHMENTS
+ * If attachment nodes are not found in the given master scene,
+ * search the other imported scenes for them in an any order.
+ */
+#define AI_INT_MERGE_SCENE_RESOLVE_CROSS_ATTACHMENTS 0x8
+
+/** @def AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY
+ * Can be combined with AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES.
+ * Unique names are generated, but only if this is absolutely
+ * required to avoid name conflicts.
+ */
+#define AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY 0x10
+
+typedef std::pair<aiBone*,unsigned int> BoneSrcIndex;
+
+// ---------------------------------------------------------------------------
+/** @brief Helper data structure for SceneCombiner::MergeBones.
+ */
+struct BoneWithHash : public std::pair<uint32_t,aiString*>  {
+    std::vector<BoneSrcIndex> pSrcBones;
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Utility for SceneCombiner
+ */
+struct SceneHelper
+{
+    SceneHelper ()
+        : scene     (NULL)
+        , idlen     (0)
+    {
+        id[0] = 0;
+    }
+
+    explicit SceneHelper (aiScene* _scene)
+        : scene     (_scene)
+        , idlen     (0)
+    {
+        id[0] = 0;
+    }
+
+    AI_FORCE_INLINE aiScene* operator-> () const
+    {
+        return scene;
+    }
+
+    // scene we're working on
+    aiScene* scene;
+
+    // prefix to be added to all identifiers in the scene ...
+    char id [32];
+
+    // and its strlen()
+    unsigned int idlen;
+
+    // hash table to quickly check whether a name is contained in the scene
+    std::set<unsigned int> hashes;
+};
+
+// ---------------------------------------------------------------------------
+/** \brief Static helper class providing various utilities to merge two
+ *    scenes. It is intended as internal utility and NOT for use by
+ *    applications.
+ *
+ * The class is currently being used by various postprocessing steps
+ * and loaders (ie. LWS).
+ */
+class ASSIMP_API SceneCombiner {
+    // class cannot be instanced
+    SceneCombiner() {
+        // empty
+    }
+
+    ~SceneCombiner() {
+        // empty
+    }
+
+public:
+    // -------------------------------------------------------------------
+    /** Merges two or more scenes.
+     *
+     *  @param dest  Receives a pointer to the destination scene. If the
+     *    pointer doesn't point to NULL when the function is called, the
+     *    existing scene is cleared and refilled.
+     *  @param src Non-empty list of scenes to be merged. The function
+     *    deletes the input scenes afterwards. There may be duplicate scenes.
+     *  @param flags Combination of the AI_INT_MERGE_SCENE flags defined above
+     */
+    static void MergeScenes(aiScene** dest,std::vector<aiScene*>& src,
+        unsigned int flags = 0);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more scenes and attaches all scenes to a specific
+     *  position in the node graph of the master scene.
+     *
+     *  @param dest Receives a pointer to the destination scene. If the
+     *    pointer doesn't point to NULL when the function is called, the
+     *    existing scene is cleared and refilled.
+     *  @param master Master scene. It will be deleted afterwards. All
+     *    other scenes will be inserted in its node graph.
+     *  @param src Non-empty list of scenes to be merged along with their
+     *    corresponding attachment points in the master scene. The function
+     *    deletes the input scenes afterwards. There may be duplicate scenes.
+     *  @param flags Combination of the AI_INT_MERGE_SCENE flags defined above
+     */
+    static void MergeScenes(aiScene** dest, aiScene* master,
+        std::vector<AttachmentInfo>& src,
+        unsigned int flags = 0);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more meshes
+     *
+     *  The meshes should have equal vertex formats. Only components
+     *  that are provided by ALL meshes will be present in the output mesh.
+     *  An exception is made for VColors - they are set to black. The
+     *  meshes should have the same material indices, too. The output
+     *  material index is always the material index of the first mesh.
+     *
+     *  @param dest Destination mesh. Must be empty.
+     *  @param flags Currently no parameters
+     *  @param begin First mesh to be processed
+     *  @param end Points to the mesh after the last mesh to be processed
+     */
+    static void MergeMeshes(aiMesh** dest,unsigned int flags,
+        std::vector<aiMesh*>::const_iterator begin,
+        std::vector<aiMesh*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more bones
+     *
+     *  @param out Mesh to receive the output bone list
+     *  @param flags Currently no parameters
+     *  @param begin First mesh to be processed
+     *  @param end Points to the mesh after the last mesh to be processed
+     */
+    static void MergeBones(aiMesh* out,std::vector<aiMesh*>::const_iterator it,
+        std::vector<aiMesh*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more materials
+     *
+     *  The materials should be complementary as much as possible. In case
+     *  of a property present in different materials, the first occurrence
+     *  is used.
+     *
+     *  @param dest Destination material. Must be empty.
+     *  @param begin First material to be processed
+     *  @param end Points to the material after the last material to be processed
+     */
+    static void MergeMaterials(aiMaterial** dest,
+        std::vector<aiMaterial*>::const_iterator begin,
+        std::vector<aiMaterial*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Builds a list of uniquely named bones in a mesh list
+     *
+     *  @param asBones Receives the output list
+     *  @param it First mesh to be processed
+     *  @param end Last mesh to be processed
+     */
+    static void BuildUniqueBoneList(std::list<BoneWithHash>& asBones,
+        std::vector<aiMesh*>::const_iterator it,
+        std::vector<aiMesh*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Add a name prefix to all nodes in a scene.
+     *
+     *  @param Current node. This function is called recursively.
+     *  @param prefix Prefix to be added to all nodes
+     *  @param len STring length
+     */
+    static void AddNodePrefixes(aiNode* node, const char* prefix,
+        unsigned int len);
+
+    // -------------------------------------------------------------------
+    /** Add an offset to all mesh indices in a node graph
+     *
+     *  @param Current node. This function is called recursively.
+     *  @param offset Offset to be added to all mesh indices
+     */
+    static void OffsetNodeMeshIndices (aiNode* node, unsigned int offset);
+
+    // -------------------------------------------------------------------
+    /** Attach a list of node graphs to well-defined nodes in a master
+     *  graph. This is a helper for MergeScenes()
+     *
+     *  @param master Master scene
+     *  @param srcList List of source scenes along with their attachment
+     *    points. If an attachment point is NULL (or does not exist in
+     *    the master graph), a scene is attached to the root of the master
+     *    graph (as an additional child node)
+     *  @duplicates List of duplicates. If elem[n] == n the scene is not
+     *    a duplicate. Otherwise elem[n] links scene n to its first occurrence.
+     */
+    static void AttachToGraph ( aiScene* master,
+        std::vector<NodeAttachmentInfo>& srcList);
+
+    static void AttachToGraph (aiNode* attach,
+        std::vector<NodeAttachmentInfo>& srcList);
+
+
+    // -------------------------------------------------------------------
+    /** Get a deep copy of a scene
+     *
+     *  @param dest Receives a pointer to the destination scene
+     *  @param src Source scene - remains unmodified.
+     */
+    static void CopyScene(aiScene** dest,const aiScene* source,bool allocate = true);
+
+
+    // -------------------------------------------------------------------
+    /** Get a flat copy of a scene
+     *
+     *  Only the first hierarchy layer is copied. All pointer members of
+     *  aiScene are shared by source and destination scene.  If the
+     *    pointer doesn't point to NULL when the function is called, the
+     *    existing scene is cleared and refilled.
+     *  @param dest Receives a pointer to the destination scene
+     *  @param src Source scene - remains unmodified.
+     */
+    static void CopySceneFlat(aiScene** dest,const aiScene* source);
+
+
+    // -------------------------------------------------------------------
+    /** Get a deep copy of a mesh
+     *
+     *  @param dest Receives a pointer to the destination mesh
+     *  @param src Source mesh - remains unmodified.
+     */
+    static void Copy     (aiMesh** dest, const aiMesh* src);
+
+    // similar to Copy():
+    static void Copy  (aiMaterial** dest, const aiMaterial* src);
+    static void Copy  (aiTexture** dest, const aiTexture* src);
+    static void Copy  (aiAnimation** dest, const aiAnimation* src);
+    static void Copy  (aiCamera** dest, const aiCamera* src);
+    static void Copy  (aiBone** dest, const aiBone* src);
+    static void Copy  (aiLight** dest, const aiLight* src);
+    static void Copy  (aiNodeAnim** dest, const aiNodeAnim* src);
+    static void Copy  (aiMetadata** dest, const aiMetadata* src);
+
+    // recursive, of course
+    static void Copy     (aiNode** dest, const aiNode* src);
+
+
+private:
+
+    // -------------------------------------------------------------------
+    // Same as AddNodePrefixes, but with an additional check
+    static void AddNodePrefixesChecked(aiNode* node, const char* prefix,
+        unsigned int len,
+        std::vector<SceneHelper>& input,
+        unsigned int cur);
+
+    // -------------------------------------------------------------------
+    // Add node identifiers to a hashing set
+    static void AddNodeHashes(aiNode* node, std::set<unsigned int>& hashes);
+
+
+    // -------------------------------------------------------------------
+    // Search for duplicate names
+    static bool FindNameMatch(const aiString& name,
+        std::vector<SceneHelper>& input, unsigned int cur);
+};
+
+}
+
+#endif // !! AI_SCENE_COMBINER_H_INC
diff --git a/thirdparty/assimp/include/assimp/SkeletonMeshBuilder.h b/thirdparty/assimp/include/assimp/SkeletonMeshBuilder.h
new file mode 100644
index 0000000000..f9b8d9f55c
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/SkeletonMeshBuilder.h
@@ -0,0 +1,125 @@
+/** Helper class to construct a dummy mesh for file formats containing only motion data */
+
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file SkeletonMeshBuilder.h
+ *  Declares SkeletonMeshBuilder, a tiny utility to build dummy meshes
+ *  for animation skeletons.
+ */
+
+#ifndef AI_SKELETONMESHBUILDER_H_INC
+#define AI_SKELETONMESHBUILDER_H_INC
+
+#include <vector>
+#include <assimp/mesh.h>
+
+struct aiMaterial;
+struct aiScene;
+struct aiNode;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/**
+ * This little helper class constructs a dummy mesh for a given scene
+ * the resembles the node hierarchy. This is useful for file formats
+ * that don't carry any mesh data but only animation data.
+ */
+class ASSIMP_API SkeletonMeshBuilder
+{
+public:
+
+    // -------------------------------------------------------------------
+    /** The constructor processes the given scene and adds a mesh there.
+     *
+     * Does nothing if the scene already has mesh data.
+     * @param pScene The scene for which a skeleton mesh should be constructed.
+     * @param root The node to start with. NULL is the scene root
+     * @param bKnobsOnly Set this to true if you don't want the connectors
+     *   between the knobs representing the nodes.
+     */
+    SkeletonMeshBuilder( aiScene* pScene, aiNode* root = NULL,
+        bool bKnobsOnly = false);
+
+protected:
+
+    // -------------------------------------------------------------------
+    /** Recursively builds a simple mesh representation for the given node
+     * and also creates a joint for the node that affects this part of
+     * the mesh.
+     * @param pNode The node to build geometry for.
+     */
+    void CreateGeometry( const aiNode* pNode);
+
+    // -------------------------------------------------------------------
+    /** Creates the mesh from the internally accumulated stuff and returns it.
+     */
+    aiMesh* CreateMesh();
+
+    // -------------------------------------------------------------------
+    /** Creates a dummy material and returns it. */
+    aiMaterial* CreateMaterial();
+
+protected:
+    /** space to assemble the mesh data: points */
+    std::vector<aiVector3D> mVertices;
+
+    /** faces */
+    struct Face
+    {
+        unsigned int mIndices[3];
+        Face();
+        Face( unsigned int p0, unsigned int p1, unsigned int p2)
+        { mIndices[0] = p0; mIndices[1] = p1; mIndices[2] = p2; }
+    };
+    std::vector<Face> mFaces;
+
+    /** bones */
+    std::vector<aiBone*> mBones;
+
+    bool mKnobsOnly;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_SKELETONMESHBUILDER_H_INC
diff --git a/thirdparty/assimp/include/assimp/SmoothingGroups.h b/thirdparty/assimp/include/assimp/SmoothingGroups.h
new file mode 100644
index 0000000000..92d65cea02
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/SmoothingGroups.h
@@ -0,0 +1,108 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines the helper data structures for importing 3DS files.
+http://www.jalix.org/ressources/graphics/3DS/_unofficials/3ds-unofficial.txt */
+
+#ifndef AI_SMOOTHINGGROUPS_H_INC
+#define AI_SMOOTHINGGROUPS_H_INC
+
+#include <assimp/vector3.h>
+#include <stdint.h>
+#include <vector>
+
+// ---------------------------------------------------------------------------
+/** Helper structure representing a face with smoothing groups assigned */
+struct FaceWithSmoothingGroup {
+    FaceWithSmoothingGroup() AI_NO_EXCEPT
+    : mIndices()
+    , iSmoothGroup(0) {
+        // in debug builds set all indices to a common magic value
+#ifdef ASSIMP_BUILD_DEBUG
+        this->mIndices[0] = 0xffffffff;
+        this->mIndices[1] = 0xffffffff;
+        this->mIndices[2] = 0xffffffff;
+#endif
+    }
+
+
+    //! Indices. .3ds is using uint16. However, after
+    //! an unique vertex set has been generated,
+    //! individual index values might exceed 2^16
+    uint32_t mIndices[3];
+
+    //! specifies to which smoothing group the face belongs to
+    uint32_t iSmoothGroup;
+};
+
+// ---------------------------------------------------------------------------
+/** Helper structure representing a mesh whose faces have smoothing
+    groups assigned. This allows us to reuse the code for normal computations
+    from smoothings groups for several loaders (3DS, ASE). All of them
+    use face structures which inherit from #FaceWithSmoothingGroup,
+    but as they add extra members and need to be copied by value we
+    need to use a template here.
+    */
+template <class T>
+struct MeshWithSmoothingGroups
+{
+    //! Vertex positions
+    std::vector<aiVector3D> mPositions;
+
+    //! Face lists
+    std::vector<T> mFaces;
+
+    //! List of normal vectors
+    std::vector<aiVector3D> mNormals;
+};
+
+// ---------------------------------------------------------------------------
+/** Computes normal vectors for the mesh
+ */
+template <class T>
+void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh);
+
+
+// include implementations
+#include "SmoothingGroups.inl"
+
+#endif // !! AI_SMOOTHINGGROUPS_H_INC
diff --git a/thirdparty/assimp/include/assimp/SmoothingGroups.inl b/thirdparty/assimp/include/assimp/SmoothingGroups.inl
new file mode 100644
index 0000000000..84ea4a1b00
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/SmoothingGroups.inl
@@ -0,0 +1,138 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2012, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the following 
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Generation of normal vectors basing on smoothing groups */
+
+#ifndef AI_SMOOTHINGGROUPS_INL_INCLUDED
+#define AI_SMOOTHINGGROUPS_INL_INCLUDED
+
+// internal headers
+#include <assimp/SGSpatialSort.h>
+
+// CRT header
+#include <algorithm>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh)
+{
+    // First generate face normals
+    sMesh.mNormals.resize(sMesh.mPositions.size(),aiVector3D());
+    for( unsigned int a = 0; a < sMesh.mFaces.size(); a++)
+    {
+        T& face = sMesh.mFaces[a];
+
+        aiVector3D* pV1 = &sMesh.mPositions[face.mIndices[0]];
+        aiVector3D* pV2 = &sMesh.mPositions[face.mIndices[1]];
+        aiVector3D* pV3 = &sMesh.mPositions[face.mIndices[2]];
+
+        aiVector3D pDelta1 = *pV2 - *pV1;
+        aiVector3D pDelta2 = *pV3 - *pV1;
+        aiVector3D vNor = pDelta1 ^ pDelta2;
+
+        for (unsigned int c = 0; c < 3;++c)
+            sMesh.mNormals[face.mIndices[c]] = vNor;
+    }
+
+    // calculate the position bounds so we have a reliable epsilon to check position differences against 
+    aiVector3D minVec( 1e10f, 1e10f, 1e10f), maxVec( -1e10f, -1e10f, -1e10f);
+    for( unsigned int a = 0; a < sMesh.mPositions.size(); a++)
+    {
+        minVec.x = std::min( minVec.x, sMesh.mPositions[a].x);
+        minVec.y = std::min( minVec.y, sMesh.mPositions[a].y);
+        minVec.z = std::min( minVec.z, sMesh.mPositions[a].z);
+        maxVec.x = std::max( maxVec.x, sMesh.mPositions[a].x);
+        maxVec.y = std::max( maxVec.y, sMesh.mPositions[a].y);
+        maxVec.z = std::max( maxVec.z, sMesh.mPositions[a].z);
+    }
+    const float posEpsilon = (maxVec - minVec).Length() * 1e-5f;
+    std::vector<aiVector3D> avNormals;
+    avNormals.resize(sMesh.mNormals.size());
+    
+    // now generate the spatial sort tree
+    SGSpatialSort sSort;
+    for( typename std::vector<T>::iterator i =  sMesh.mFaces.begin();
+        i != sMesh.mFaces.end();++i)
+    {
+        for (unsigned int c = 0; c < 3;++c)
+            sSort.Add(sMesh.mPositions[(*i).mIndices[c]],(*i).mIndices[c],(*i).iSmoothGroup);
+    }
+    sSort.Prepare();
+
+    std::vector<bool> vertexDone(sMesh.mPositions.size(),false);
+    for( typename std::vector<T>::iterator i =  sMesh.mFaces.begin();
+        i != sMesh.mFaces.end();++i)
+    {
+        std::vector<unsigned int> poResult;
+        for (unsigned int c = 0; c < 3;++c)
+        {
+            unsigned int idx = (*i).mIndices[c];
+            if (vertexDone[idx])continue;
+
+            sSort.FindPositions(sMesh.mPositions[idx],(*i).iSmoothGroup,
+                posEpsilon,poResult);
+
+            aiVector3D vNormals;
+            for (std::vector<unsigned int>::const_iterator
+                a =  poResult.begin();
+                a != poResult.end();++a)
+            {
+                vNormals += sMesh.mNormals[(*a)];
+            }
+            vNormals.NormalizeSafe();
+
+            // write back into all affected normals
+            for (std::vector<unsigned int>::const_iterator
+                a =  poResult.begin();
+                a != poResult.end();++a)
+            {
+                idx = *a;
+                avNormals [idx] = vNormals;
+                vertexDone[idx] = true;
+            }
+        }
+    }
+    sMesh.mNormals = avNormals;
+}
+
+#endif // !! AI_SMOOTHINGGROUPS_INL_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/SpatialSort.h b/thirdparty/assimp/include/assimp/SpatialSort.h
new file mode 100644
index 0000000000..61b345bcbf
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/SpatialSort.h
@@ -0,0 +1,174 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Small helper classes to optimise finding vertizes close to a given location */
+#ifndef AI_SPATIALSORT_H_INC
+#define AI_SPATIALSORT_H_INC
+
+#include <vector>
+#include <assimp/types.h>
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+/** A little helper class to quickly find all vertices in the epsilon environment of a given
+ * position. Construct an instance with an array of positions. The class stores the given positions
+ * by their indices and sorts them by their distance to an arbitrary chosen plane.
+ * You can then query the instance for all vertices close to a given position in an average O(log n)
+ * time, with O(n) worst case complexity when all vertices lay on the plane. The plane is chosen
+ * so that it avoids common planes in usual data sets. */
+// ------------------------------------------------------------------------------------------------
+class ASSIMP_API SpatialSort
+{
+public:
+
+    SpatialSort();
+
+    // ------------------------------------------------------------------------------------
+    /** Constructs a spatially sorted representation from the given position array.
+     * Supply the positions in its layout in memory, the class will only refer to them
+     * by index.
+     * @param pPositions Pointer to the first position vector of the array.
+     * @param pNumPositions Number of vectors to expect in that array.
+     * @param pElementOffset Offset in bytes from the beginning of one vector in memory
+     *   to the beginning of the next vector. */
+    SpatialSort( const aiVector3D* pPositions, unsigned int pNumPositions,
+        unsigned int pElementOffset);
+
+    /** Destructor */
+    ~SpatialSort();
+
+public:
+
+    // ------------------------------------------------------------------------------------
+    /** Sets the input data for the SpatialSort. This replaces existing data, if any.
+     *  The new data receives new indices in ascending order.
+     *
+     * @param pPositions Pointer to the first position vector of the array.
+     * @param pNumPositions Number of vectors to expect in that array.
+     * @param pElementOffset Offset in bytes from the beginning of one vector in memory
+     *   to the beginning of the next vector.
+     * @param pFinalize Specifies whether the SpatialSort's internal representation
+     *   is finalized after the new data has been added. Finalization is
+     *   required in order to use #FindPosition() or #GenerateMappingTable().
+     *   If you don't finalize yet, you can use #Append() to add data from
+     *   other sources.*/
+    void Fill( const aiVector3D* pPositions, unsigned int pNumPositions,
+        unsigned int pElementOffset,
+        bool pFinalize = true);
+
+
+    // ------------------------------------------------------------------------------------
+    /** Same as #Fill(), except the method appends to existing data in the #SpatialSort. */
+    void Append( const aiVector3D* pPositions, unsigned int pNumPositions,
+        unsigned int pElementOffset,
+        bool pFinalize = true);
+
+
+    // ------------------------------------------------------------------------------------
+    /** Finalize the spatial hash data structure. This can be useful after
+     *  multiple calls to #Append() with the pFinalize parameter set to false.
+     *  This is finally required before one of #FindPositions() and #GenerateMappingTable()
+     *  can be called to query the spatial sort.*/
+    void Finalize();
+
+    // ------------------------------------------------------------------------------------
+    /** Returns an iterator for all positions close to the given position.
+     * @param pPosition The position to look for vertices.
+     * @param pRadius Maximal distance from the position a vertex may have to be counted in.
+     * @param poResults The container to store the indices of the found positions.
+     *   Will be emptied by the call so it may contain anything.
+     * @return An iterator to iterate over all vertices in the given area.*/
+    void FindPositions( const aiVector3D& pPosition, ai_real pRadius,
+        std::vector<unsigned int>& poResults) const;
+
+    // ------------------------------------------------------------------------------------
+    /** Fills an array with indices of all positions identical to the given position. In
+     *  opposite to FindPositions(), not an epsilon is used but a (very low) tolerance of
+     *  four floating-point units.
+     * @param pPosition The position to look for vertices.
+     * @param poResults The container to store the indices of the found positions.
+     *   Will be emptied by the call so it may contain anything.*/
+    void FindIdenticalPositions( const aiVector3D& pPosition,
+        std::vector<unsigned int>& poResults) const;
+
+    // ------------------------------------------------------------------------------------
+    /** Compute a table that maps each vertex ID referring to a spatially close
+     *  enough position to the same output ID. Output IDs are assigned in ascending order
+     *  from 0...n.
+     * @param fill Will be filled with numPositions entries.
+     * @param pRadius Maximal distance from the position a vertex may have to
+     *   be counted in.
+     *  @return Number of unique vertices (n).  */
+    unsigned int GenerateMappingTable(std::vector<unsigned int>& fill,
+        ai_real pRadius) const;
+
+protected:
+    /** Normal of the sorting plane, normalized. The center is always at (0, 0, 0) */
+    aiVector3D mPlaneNormal;
+
+    /** An entry in a spatially sorted position array. Consists of a vertex index,
+     * its position and its pre-calculated distance from the reference plane */
+    struct Entry {
+        unsigned int mIndex; ///< The vertex referred by this entry
+        aiVector3D mPosition; ///< Position
+        ai_real mDistance; ///< Distance of this vertex to the sorting plane
+
+        Entry() AI_NO_EXCEPT
+        : mIndex( 999999999 ), mPosition(), mDistance( 99999. ) {
+            // empty        
+        }
+        Entry( unsigned int pIndex, const aiVector3D& pPosition, ai_real pDistance)
+        : mIndex( pIndex), mPosition( pPosition), mDistance( pDistance) {
+            // empty
+        }
+
+        bool operator < (const Entry& e) const { return mDistance < e.mDistance; }
+    };
+
+    // all positions, sorted by distance to the sorting plane
+    std::vector<Entry> mPositions;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_SPATIALSORT_H_INC
diff --git a/thirdparty/assimp/include/assimp/StandardShapes.h b/thirdparty/assimp/include/assimp/StandardShapes.h
new file mode 100644
index 0000000000..3791569b83
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/StandardShapes.h
@@ -0,0 +1,200 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Declares a helper class, "StandardShapes" which generates
+ *  vertices for standard shapes, such as cylnders, cones, spheres ..
+ */
+#ifndef AI_STANDARD_SHAPES_H_INC
+#define AI_STANDARD_SHAPES_H_INC
+
+#include <assimp/vector3.h>
+#include <vector>
+
+struct aiMesh;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper class to generate vertex buffers for standard geometric
+ *  shapes, such as cylinders, cones, boxes, spheres, elipsoids ... .
+ */
+class ASSIMP_API StandardShapes
+{
+    // class cannot be instanced
+    StandardShapes() {}
+
+public:
+
+
+    // ----------------------------------------------------------------
+    /** Generates a mesh from an array of vertex positions.
+     *
+     *  @param positions List of vertex positions
+     *  @param numIndices Number of indices per primitive
+     *  @return Output mesh
+     */
+    static aiMesh* MakeMesh(const std::vector<aiVector3D>& positions,
+        unsigned int numIndices);
+
+
+    static aiMesh* MakeMesh ( unsigned int (*GenerateFunc)
+        (std::vector<aiVector3D>&));
+
+    static aiMesh* MakeMesh ( unsigned int (*GenerateFunc)
+        (std::vector<aiVector3D>&, bool));
+
+    static aiMesh* MakeMesh ( unsigned int n,  void (*GenerateFunc)
+        (unsigned int,std::vector<aiVector3D>&));
+
+    // ----------------------------------------------------------------
+    /** @brief Generates a hexahedron (cube)
+     *
+     *  Hexahedrons can be scaled on all axes.
+     *  @param positions Receives output triangles.
+     *  @param polygons If you pass true here quads will be returned
+     *  @return Number of vertices per face
+     */
+    static unsigned int MakeHexahedron(
+        std::vector<aiVector3D>& positions,
+        bool polygons = false);
+
+    // ----------------------------------------------------------------
+    /** @brief Generates an icosahedron
+     *
+     *  @param positions Receives output triangles.
+     *  @return Number of vertices per face
+     */
+    static unsigned int MakeIcosahedron(
+        std::vector<aiVector3D>& positions);
+
+
+    // ----------------------------------------------------------------
+    /** @brief Generates a dodecahedron
+     *
+     *  @param positions Receives output triangles
+     *  @param polygons If you pass true here pentagons will be returned
+     *  @return Number of vertices per face
+     */
+    static unsigned int MakeDodecahedron(
+        std::vector<aiVector3D>& positions,
+        bool polygons = false);
+
+
+    // ----------------------------------------------------------------
+    /** @brief Generates an octahedron
+     *
+     *  @param positions Receives output triangles.
+     *  @return Number of vertices per face
+     */
+    static unsigned int MakeOctahedron(
+        std::vector<aiVector3D>& positions);
+
+
+    // ----------------------------------------------------------------
+    /** @brief Generates a tetrahedron
+     *
+     *  @param positions Receives output triangles.
+     *  @return Number of vertices per face
+     */
+    static unsigned int MakeTetrahedron(
+        std::vector<aiVector3D>& positions);
+
+
+
+    // ----------------------------------------------------------------
+    /** @brief Generates a sphere
+     *
+     *  @param tess Number of subdivions - 0 generates a octahedron
+     *  @param positions Receives output triangles.
+     */
+    static void MakeSphere(unsigned int tess,
+        std::vector<aiVector3D>& positions);
+
+
+    // ----------------------------------------------------------------
+    /** @brief Generates a cone or a cylinder, either open or closed.
+     *
+     *  @code
+     *
+     *       |-----|       <- radius 1
+     *
+     *        __x__        <- ]               ^
+     *       /     \          | height        |
+     *      /       \         |               Y
+     *     /         \        |
+     *    /           \       |
+     *   /______x______\   <- ] <- end cap
+     *
+     *   |-------------|   <- radius 2
+     *
+     *  @endcode
+     *
+     *  @param height Height of the cone
+     *  @param radius1 First radius
+     *  @param radius2 Second radius
+     *  @param tess Number of triangles.
+     *  @param bOpened true for an open cone/cylinder. An open shape has
+     *    no 'end caps'
+     *  @param positions Receives output triangles
+     */
+    static void MakeCone(ai_real height,ai_real radius1,
+        ai_real radius2,unsigned int tess,
+        std::vector<aiVector3D>& positions,bool bOpen= false);
+
+
+    // ----------------------------------------------------------------
+    /** @brief Generates a flat circle
+     *
+     *  The circle is constructed in the planned formed by the x,z
+     *  axes of the cartesian coordinate system.
+     *
+     *  @param radius Radius of the circle
+     *  @param tess Number of segments.
+     *  @param positions Receives output triangles.
+     */
+    static void MakeCircle(ai_real radius, unsigned int tess,
+        std::vector<aiVector3D>& positions);
+
+};
+} // ! Assimp
+
+#endif // !! AI_STANDARD_SHAPES_H_INC
diff --git a/thirdparty/assimp/include/assimp/StreamReader.h b/thirdparty/assimp/include/assimp/StreamReader.h
new file mode 100644
index 0000000000..9116c14261
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/StreamReader.h
@@ -0,0 +1,343 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Defines the StreamReader class which reads data from
+ *  a binary stream with a well-defined endianness.
+ */
+
+#ifndef AI_STREAMREADER_H_INCLUDED
+#define AI_STREAMREADER_H_INCLUDED
+
+#include <assimp/IOStream.hpp>
+#include <assimp/Defines.h>
+
+#include "ByteSwapper.h"
+#include "Exceptional.h"
+#include <memory>
+
+namespace Assimp {
+
+// --------------------------------------------------------------------------------------------
+/** Wrapper class around IOStream to allow for consistent reading of binary data in both
+ *  little and big endian format. Don't attempt to instance the template directly. Use
+ *  StreamReaderLE to read from a little-endian stream and StreamReaderBE to read from a
+ *  BE stream. The class expects that the endianness of any input data is known at
+ *  compile-time, which should usually be true (#BaseImporter::ConvertToUTF8 implements
+ *  runtime endianness conversions for text files).
+ *
+ *  XXX switch from unsigned int for size types to size_t? or ptrdiff_t?*/
+// --------------------------------------------------------------------------------------------
+template <bool SwapEndianess = false, bool RuntimeSwitch = false>
+class StreamReader {
+public:
+    // FIXME: use these data types throughout the whole library,
+    // then change them to 64 bit values :-)
+    using diff = int;
+    using pos  = unsigned int;
+
+    // ---------------------------------------------------------------------
+    /** Construction from a given stream with a well-defined endianness.
+     *
+     *  The StreamReader holds a permanent strong reference to the
+     *  stream, which is released upon destruction.
+     *  @param stream Input stream. The stream is not restarted if
+     *    its file pointer is not at 0. Instead, the stream reader
+     *    reads from the current position to the end of the stream.
+     *  @param le If @c RuntimeSwitch is true: specifies whether the
+     *    stream is in little endian byte order. Otherwise the
+     *    endianness information is contained in the @c SwapEndianess
+     *    template parameter and this parameter is meaningless.  */
+    StreamReader(std::shared_ptr<IOStream> stream, bool le = false)
+        : stream(stream)
+        , le(le)
+    {
+        ai_assert(stream);
+        InternBegin();
+    }
+
+    // ---------------------------------------------------------------------
+    StreamReader(IOStream* stream, bool le = false)
+        : stream(std::shared_ptr<IOStream>(stream))
+        , le(le)
+    {
+        ai_assert(stream);
+        InternBegin();
+    }
+
+    // ---------------------------------------------------------------------
+    ~StreamReader() {
+        delete[] buffer;
+    }
+
+    // deprecated, use overloaded operator>> instead
+
+    // ---------------------------------------------------------------------
+    /** Read a float from the stream  */
+    float GetF4()
+    {
+        return Get<float>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a double from the stream  */
+    double GetF8()  {
+        return Get<double>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a signed 16 bit integer from the stream */
+    int16_t GetI2() {
+        return Get<int16_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a signed 8 bit integer from the stream */
+    int8_t GetI1()  {
+        return Get<int8_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read an signed 32 bit integer from the stream */
+    int32_t GetI4() {
+        return Get<int32_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a signed 64 bit integer from the stream */
+    int64_t GetI8() {
+        return Get<int64_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a unsigned 16 bit integer from the stream */
+    uint16_t GetU2()    {
+        return Get<uint16_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a unsigned 8 bit integer from the stream */
+    uint8_t GetU1() {
+        return Get<uint8_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read an unsigned 32 bit integer from the stream */
+    uint32_t GetU4()    {
+        return Get<uint32_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Read a unsigned 64 bit integer from the stream */
+    uint64_t GetU8()    {
+        return Get<uint64_t>();
+    }
+
+    // ---------------------------------------------------------------------
+    /** Get the remaining stream size (to the end of the stream) */
+    unsigned int GetRemainingSize() const {
+        return (unsigned int)(end - current);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Get the remaining stream size (to the current read limit). The
+     *  return value is the remaining size of the stream if no custom
+     *  read limit has been set. */
+    unsigned int GetRemainingSizeToLimit() const {
+        return (unsigned int)(limit - current);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Increase the file pointer (relative seeking)  */
+    void IncPtr(intptr_t plus)    {
+        current += plus;
+        if (current > limit) {
+            throw DeadlyImportError("End of file or read limit was reached");
+        }
+    }
+
+    // ---------------------------------------------------------------------
+    /** Get the current file pointer */
+    int8_t* GetPtr() const  {
+        return current;
+    }
+
+    // ---------------------------------------------------------------------
+    /** Set current file pointer (Get it from #GetPtr). This is if you
+     *  prefer to do pointer arithmetics on your own or want to copy
+     *  large chunks of data at once.
+     *  @param p The new pointer, which is validated against the size
+     *    limit and buffer boundaries. */
+    void SetPtr(int8_t* p)  {
+        current = p;
+        if (current > limit || current < buffer) {
+            throw DeadlyImportError("End of file or read limit was reached");
+        }
+    }
+
+    // ---------------------------------------------------------------------
+    /** Copy n bytes to an external buffer
+     *  @param out Destination for copying
+     *  @param bytes Number of bytes to copy */
+    void CopyAndAdvance(void* out, size_t bytes)    {
+        int8_t* ur = GetPtr();
+        SetPtr(ur+bytes); // fire exception if eof
+
+        ::memcpy(out,ur,bytes);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Get the current offset from the beginning of the file */
+    int GetCurrentPos() const   {
+        return (unsigned int)(current - buffer);
+    }
+
+    void SetCurrentPos(size_t pos) {
+        SetPtr(buffer + pos);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Setup a temporary read limit
+     *
+     *  @param limit Maximum number of bytes to be read from
+     *    the beginning of the file. Specifying UINT_MAX
+     *    resets the limit to the original end of the stream.
+     *  Returns the previously set limit. */
+    unsigned int SetReadLimit(unsigned int _limit)  {
+        unsigned int prev = GetReadLimit();
+        if (UINT_MAX == _limit) {
+            limit = end;
+            return prev;
+        }
+
+        limit = buffer + _limit;
+        if (limit > end) {
+            throw DeadlyImportError("StreamReader: Invalid read limit");
+        }
+        return prev;
+    }
+
+    // ---------------------------------------------------------------------
+    /** Get the current read limit in bytes. Reading over this limit
+     *  accidentally raises an exception.  */
+    unsigned int GetReadLimit() const    {
+        return (unsigned int)(limit - buffer);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Skip to the read limit in bytes. Reading over this limit
+     *  accidentally raises an exception. */
+    void SkipToReadLimit()  {
+        current = limit;
+    }
+
+    // ---------------------------------------------------------------------
+    /** overload operator>> and allow chaining of >> ops. */
+    template <typename T>
+    StreamReader& operator >> (T& f) {
+        f = Get<T>();
+        return *this;
+    }
+
+    // ---------------------------------------------------------------------
+    /** Generic read method. ByteSwap::Swap(T*) *must* be defined */
+    template <typename T>
+    T Get() {
+        if ( current + sizeof(T) > limit) {
+            throw DeadlyImportError("End of file or stream limit was reached");
+        }
+
+        T f;
+        ::memcpy (&f, current, sizeof(T));
+        Intern::Getter<SwapEndianess,T,RuntimeSwitch>() (&f,le);
+        current += sizeof(T);
+
+        return f;
+    }
+
+private:
+    // ---------------------------------------------------------------------
+    void InternBegin() {
+        if (!stream) {
+            // in case someone wonders: StreamReader is frequently invoked with
+            // no prior validation whether the input stream is valid. Since
+            // no one bothers changing the error message, this message here
+            // is passed down to the caller and 'unable to open file'
+            // simply describes best what happened.
+            throw DeadlyImportError("StreamReader: Unable to open file");
+        }
+
+        const size_t s = stream->FileSize() - stream->Tell();
+        if (!s) {
+            throw DeadlyImportError("StreamReader: File is empty or EOF is already reached");
+        }
+
+        current = buffer = new int8_t[s];
+        const size_t read = stream->Read(current,1,s);
+        // (read < s) can only happen if the stream was opened in text mode, in which case FileSize() is not reliable
+        ai_assert(read <= s);
+        end = limit = &buffer[read-1] + 1;
+    }
+
+private:
+    std::shared_ptr<IOStream> stream;
+    int8_t *buffer, *current, *end, *limit;
+    bool le;
+};
+
+// --------------------------------------------------------------------------------------------
+// `static` StreamReaders. Their byte order is fixed and they might be a little bit faster.
+#ifdef AI_BUILD_BIG_ENDIAN
+    typedef StreamReader<true>  StreamReaderLE;
+    typedef StreamReader<false> StreamReaderBE;
+#else
+    typedef StreamReader<true>  StreamReaderBE;
+    typedef StreamReader<false> StreamReaderLE;
+#endif
+
+// `dynamic` StreamReader. The byte order of the input data is specified in the
+// c'tor. This involves runtime branching and might be a little bit slower.
+typedef StreamReader<true,true> StreamReaderAny;
+
+} // end namespace Assimp
+
+#endif // !! AI_STREAMREADER_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/StreamWriter.h b/thirdparty/assimp/include/assimp/StreamWriter.h
new file mode 100644
index 0000000000..c7cf6c0d74
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/StreamWriter.h
@@ -0,0 +1,303 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Defines the StreamWriter class which writes data to
+ *  a binary stream with a well-defined endianness. */
+
+#ifndef AI_STREAMWRITER_H_INCLUDED
+#define AI_STREAMWRITER_H_INCLUDED
+
+#include "ByteSwapper.h"
+#include <assimp/IOStream.hpp>
+
+#include <memory>
+#include <vector>
+
+namespace Assimp {
+
+// --------------------------------------------------------------------------------------------
+/** Wrapper class around IOStream to allow for consistent writing of binary data in both
+ *  little and big endian format. Don't attempt to instance the template directly. Use
+ *  StreamWriterLE to write to a little-endian stream and StreamWriterBE to write to a
+ *  BE stream. Alternatively, there is StreamWriterAny if the endianness of the output
+ *  stream is to be determined at runtime.
+ */
+// --------------------------------------------------------------------------------------------
+template <bool SwapEndianess = false, bool RuntimeSwitch = false>
+class StreamWriter
+{
+    enum {
+        INITIAL_CAPACITY = 1024
+    };
+
+public:
+
+    // ---------------------------------------------------------------------
+    /** Construction from a given stream with a well-defined endianness.
+     *
+     *  The StreamReader holds a permanent strong reference to the
+     *  stream, which is released upon destruction.
+     *  @param stream Input stream. The stream is not re-seeked and writing
+          continues at the current position of the stream cursor.
+     *  @param le If @c RuntimeSwitch is true: specifies whether the
+     *    stream is in little endian byte order. Otherwise the
+     *    endianness information is defined by the @c SwapEndianess
+     *    template parameter and this parameter is meaningless.  */
+    StreamWriter(std::shared_ptr<IOStream> stream, bool le = false)
+        : stream(stream)
+        , le(le)
+        , cursor()
+    {
+        ai_assert(stream);
+        buffer.reserve(INITIAL_CAPACITY);
+    }
+
+    // ---------------------------------------------------------------------
+    StreamWriter(IOStream* stream, bool le = false)
+        : stream(std::shared_ptr<IOStream>(stream))
+        , le(le)
+        , cursor()
+    {
+        ai_assert(stream);
+        buffer.reserve(INITIAL_CAPACITY);
+    }
+
+    // ---------------------------------------------------------------------
+    ~StreamWriter() {
+        stream->Write(buffer.data(), 1, buffer.size());
+        stream->Flush();
+    }
+
+public:
+
+    // ---------------------------------------------------------------------
+    /** Flush the contents of the internal buffer, and the output IOStream */
+    void Flush()
+    {
+        stream->Write(buffer.data(), 1, buffer.size());
+        stream->Flush();
+        buffer.clear();
+        cursor = 0;
+    }
+
+    // ---------------------------------------------------------------------
+    /** Seek to the given offset / origin in the output IOStream.
+     *
+     *  Flushes the internal buffer and the output IOStream prior to seeking. */
+    aiReturn Seek(size_t pOffset, aiOrigin pOrigin=aiOrigin_SET)
+    {
+        Flush();
+        return stream->Seek(pOffset, pOrigin);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Tell the current position in the output IOStream.
+     *
+     *  First flushes the internal buffer and the output IOStream. */
+    size_t Tell()
+    {
+        Flush();
+        return stream->Tell();
+    }
+
+public:
+
+    // ---------------------------------------------------------------------
+    /** Write a float to the stream  */
+    void PutF4(float f)
+    {
+        Put(f);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a double to the stream  */
+    void PutF8(double d)    {
+        Put(d);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a signed 16 bit integer to the stream */
+    void PutI2(int16_t n)   {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a signed 8 bit integer to the stream */
+    void PutI1(int8_t n)    {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write an signed 32 bit integer to the stream */
+    void PutI4(int32_t n)   {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a signed 64 bit integer to the stream */
+    void PutI8(int64_t n)   {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a unsigned 16 bit integer to the stream */
+    void PutU2(uint16_t n)  {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a unsigned 8 bit integer to the stream */
+    void PutU1(uint8_t n)   {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write an unsigned 32 bit integer to the stream */
+    void PutU4(uint32_t n)  {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a unsigned 64 bit integer to the stream */
+    void PutU8(uint64_t n)  {
+        Put(n);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a single character to the stream */
+    void PutChar(char c)    {
+        Put(c);
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write an aiString to the stream */
+    void PutString(const aiString& s)
+    {
+        // as Put(T f) below
+        if (cursor + s.length >= buffer.size()) {
+            buffer.resize(cursor + s.length);
+        }
+        void* dest = &buffer[cursor];
+        ::memcpy(dest, s.C_Str(), s.length);
+        cursor += s.length;
+    }
+
+    // ---------------------------------------------------------------------
+    /** Write a std::string to the stream */
+    void PutString(const std::string& s)
+    {
+        // as Put(T f) below
+        if (cursor + s.size() >= buffer.size()) {
+            buffer.resize(cursor + s.size());
+        }
+        void* dest = &buffer[cursor];
+        ::memcpy(dest, s.c_str(), s.size());
+        cursor += s.size();
+    }
+
+public:
+
+    // ---------------------------------------------------------------------
+    /** overload operator<< and allow chaining of MM ops. */
+    template <typename T>
+    StreamWriter& operator << (T f) {
+        Put(f);
+        return *this;
+    }
+
+    // ---------------------------------------------------------------------
+    std::size_t GetCurrentPos() const {
+        return cursor;
+    }
+
+    // ---------------------------------------------------------------------
+    void SetCurrentPos(std::size_t new_cursor) {
+        cursor = new_cursor;
+    }
+
+    // ---------------------------------------------------------------------
+    /** Generic write method. ByteSwap::Swap(T*) *must* be defined */
+    template <typename T>
+    void Put(T f)   {
+        Intern :: Getter<SwapEndianess,T,RuntimeSwitch>() (&f, le);
+
+        if (cursor + sizeof(T) >= buffer.size()) {
+            buffer.resize(cursor + sizeof(T));
+        }
+
+        void* dest = &buffer[cursor];
+
+        // reinterpret_cast + assignment breaks strict aliasing rules
+        // and generally causes trouble on platforms such as ARM that
+        // do not silently ignore alignment faults.
+        ::memcpy(dest, &f, sizeof(T));
+        cursor += sizeof(T);
+    }
+
+private:
+
+    std::shared_ptr<IOStream> stream;
+    bool le;
+
+    std::vector<uint8_t> buffer;
+    std::size_t cursor;
+};
+
+
+// --------------------------------------------------------------------------------------------
+// `static` StreamWriter. Their byte order is fixed and they might be a little bit faster.
+#ifdef AI_BUILD_BIG_ENDIAN
+    typedef StreamWriter<true>  StreamWriterLE;
+    typedef StreamWriter<false> StreamWriterBE;
+#else
+    typedef StreamWriter<true>  StreamWriterBE;
+    typedef StreamWriter<false> StreamWriterLE;
+#endif
+
+// `dynamic` StreamWriter. The byte order of the input data is specified in the
+// c'tor. This involves runtime branching and might be a little bit slower.
+typedef StreamWriter<true,true> StreamWriterAny;
+
+} // end namespace Assimp
+
+#endif // !! AI_STREAMWriter_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/StringComparison.h b/thirdparty/assimp/include/assimp/StringComparison.h
new file mode 100644
index 0000000000..8acef277b9
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/StringComparison.h
@@ -0,0 +1,233 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Definition of platform independent string workers:
+
+   ASSIMP_itoa10
+   ASSIMP_stricmp
+   ASSIMP_strincmp
+
+   These functions are not consistently available on all platforms,
+   or the provided implementations behave too differently.
+*/
+#ifndef INCLUDED_AI_STRING_WORKERS_H
+#define INCLUDED_AI_STRING_WORKERS_H
+
+#include <assimp/ai_assert.h>
+#include <assimp/defs.h>
+#include "StringComparison.h"
+
+#include <string.h>
+#include <stdint.h>
+#include <string>
+
+namespace Assimp    {
+
+// -------------------------------------------------------------------------------
+/** @brief itoa with a fixed base 10
+ * 'itoa' is not consistently available on all platforms so it is quite useful
+ * to have a small replacement function here. No need to use a full sprintf()
+ * if we just want to print a number ...
+ * @param out Output buffer
+ * @param max Maximum number of characters to be written, including '\0'.
+ *   This parameter may not be 0.
+ * @param number Number to be written
+ * @return Length of the output string, excluding the '\0'
+ */
+AI_FORCE_INLINE
+unsigned int ASSIMP_itoa10( char* out, unsigned int max, int32_t number) {
+    ai_assert(NULL != out);
+
+    // write the unary minus to indicate we have a negative number
+    unsigned int written = 1u;
+    if (number < 0 && written < max)    {
+        *out++ = '-';
+        ++written;
+        number = -number;
+    }
+
+    // We begin with the largest number that is not zero.
+    int32_t cur = 1000000000; // 2147483648
+    bool mustPrint = false;
+    while (written < max)   {
+
+        const unsigned int digit = number / cur;
+        if (mustPrint || digit > 0 || 1 == cur) {
+            // print all future zeroe's from now
+            mustPrint = true;
+
+            *out++ = '0'+static_cast<char>(digit);
+
+            ++written;
+            number -= digit*cur;
+            if (1 == cur) {
+                break;
+            }
+        }
+        cur /= 10;
+    }
+
+    // append a terminal zero
+    *out++ = '\0';
+    return written-1;
+}
+
+// -------------------------------------------------------------------------------
+/** @brief itoa with a fixed base 10 (Secure template overload)
+ *  The compiler should choose this function if he or she is able to determine the
+ *  size of the array automatically.
+ */
+template <size_t length>
+AI_FORCE_INLINE
+unsigned int ASSIMP_itoa10( char(& out)[length], int32_t number) {
+    return ASSIMP_itoa10(out,length,number);
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Helper function to do platform independent string comparison.
+ *
+ *  This is required since stricmp() is not consistently available on
+ *  all platforms. Some platforms use the '_' prefix, others don't even
+ *  have such a function.
+ *
+ *  @param s1 First input string
+ *  @param s2 Second input string
+ *  @return 0 if the given strings are identical
+ */
+AI_FORCE_INLINE
+int ASSIMP_stricmp(const char *s1, const char *s2) {
+    ai_assert( NULL != s1 );
+    ai_assert( NULL != s2 );
+
+#if (defined _MSC_VER)
+
+    return ::_stricmp(s1,s2);
+#elif defined( __GNUC__ )
+
+    return ::strcasecmp(s1,s2);
+#else
+
+    char c1, c2;
+    do  {
+        c1 = tolower(*s1++);
+        c2 = tolower(*s2++);
+    }
+    while ( c1 && (c1 == c2) );
+    return c1 - c2;
+#endif
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Case independent comparison of two std::strings
+ *
+ *  @param a First  string
+ *  @param b Second string
+ *  @return 0 if a == b
+ */
+AI_FORCE_INLINE
+int ASSIMP_stricmp(const std::string& a, const std::string& b) {
+    int i = (int)b.length()-(int)a.length();
+    return (i ? i : ASSIMP_stricmp(a.c_str(),b.c_str()));
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Helper function to do platform independent string comparison.
+ *
+ *  This is required since strincmp() is not consistently available on
+ *  all platforms. Some platforms use the '_' prefix, others don't even
+ *  have such a function.
+ *
+ *  @param s1 First input string
+ *  @param s2 Second input string
+ *  @param n Macimum number of characters to compare
+ *  @return 0 if the given strings are identical
+ */
+AI_FORCE_INLINE
+int ASSIMP_strincmp(const char *s1, const char *s2, unsigned int n) {
+    ai_assert( NULL != s1 );
+    ai_assert( NULL != s2 );
+    if ( !n ) {
+        return 0;
+    }
+
+#if (defined _MSC_VER)
+
+    return ::_strnicmp(s1,s2,n);
+
+#elif defined( __GNUC__ )
+
+    return ::strncasecmp(s1,s2, n);
+
+#else
+    char c1, c2;
+    unsigned int p = 0;
+    do
+    {
+        if (p++ >= n)return 0;
+        c1 = tolower(*s1++);
+        c2 = tolower(*s2++);
+    }
+    while ( c1 && (c1 == c2) );
+
+    return c1 - c2;
+#endif
+}
+
+
+// -------------------------------------------------------------------------------
+/** @brief Evaluates an integer power
+ *
+ * todo: move somewhere where it fits better in than here
+ */
+AI_FORCE_INLINE
+unsigned int integer_pow( unsigned int base, unsigned int power ) {
+    unsigned int res = 1;
+    for ( unsigned int i = 0; i < power; ++i ) {
+        res *= base;
+    }
+
+    return res;
+}
+
+} // end of namespace
+
+#endif // !  AI_STRINGCOMPARISON_H_INC
diff --git a/thirdparty/assimp/include/assimp/StringUtils.h b/thirdparty/assimp/include/assimp/StringUtils.h
new file mode 100644
index 0000000000..d68b7fa479
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/StringUtils.h
@@ -0,0 +1,143 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#ifndef INCLUDED_AI_STRINGUTILS_H
+#define INCLUDED_AI_STRINGUTILS_H
+
+#include <assimp/defs.h>
+
+#include <sstream>
+#include <stdarg.h>
+#include <cstdlib>
+
+///	@fn		ai_snprintf
+///	@brief	The portable version of the function snprintf ( C99 standard ), which works on visual studio compilers 2013 and earlier.
+///	@param	outBuf		The buffer to write in
+///	@param	size		The buffer size
+///	@param	format		The format string
+///	@param	ap			The additional arguments.
+///	@return	The number of written characters if the buffer size was big enough. If an encoding error occurs, a negative number is returned.
+#if defined(_MSC_VER) && _MSC_VER < 1900
+
+    AI_FORCE_INLINE
+    int c99_ai_vsnprintf(char *outBuf, size_t size, const char *format, va_list ap) {
+		int count(-1);
+		if (0 != size) {
+			count = _vsnprintf_s(outBuf, size, _TRUNCATE, format, ap);
+		}
+		if (count == -1) {
+			count = _vscprintf(format, ap);
+		}
+
+		return count;
+	}
+
+    AI_FORCE_INLINE
+    int ai_snprintf(char *outBuf, size_t size, const char *format, ...) {
+		int count;
+		va_list ap;
+
+		va_start(ap, format);
+		count = c99_ai_vsnprintf(outBuf, size, format, ap);
+		va_end(ap);
+
+		return count;
+	}
+
+#else
+#   define ai_snprintf snprintf
+#endif
+
+///	@fn		to_string
+///	@brief	The portable version of to_string ( some gcc-versions on embedded devices are not supporting this).
+///	@param	value   The value to write into the std::string.
+///	@return	The value as a std::string
+template <typename T>
+AI_FORCE_INLINE
+std::string to_string( T value ) {
+    std::ostringstream os;
+    os << value;
+
+    return os.str();
+}
+
+///	@fn		ai_strtof
+///	@brief	The portable version of strtof.
+///	@param	begin   The first character of the string.
+/// @param  end     The last character
+///	@return	The float value, 0.0f in cas of an error.
+AI_FORCE_INLINE
+float ai_strtof( const char *begin, const char *end ) {
+    if ( nullptr == begin ) {
+        return 0.0f;
+    }
+    float val( 0.0f );
+    if ( nullptr == end ) {
+        val = static_cast< float >( ::atof( begin ) );
+    } else {
+        std::string::size_type len( end - begin );
+        std::string token( begin, len );
+        val = static_cast< float >( ::atof( token.c_str() ) );
+    }
+
+    return val;
+}
+
+///	@fn		DecimalToHexa
+///	@brief	The portable to convert a decimal value into a hexadecimal string.
+///	@param	toConvert   Value to convert
+///	@return	The hexadecimal string, is empty in case of an error.
+template<class T>
+AI_FORCE_INLINE
+std::string DecimalToHexa( T toConvert ) {
+    std::string result;
+    std::stringstream ss;
+    ss << std::hex << toConvert;
+    ss >> result;
+
+    for ( size_t i = 0; i < result.size(); ++i ) {
+        result[ i ] = toupper( result[ i ] );
+    }
+
+    return result;
+}
+
+#endif // INCLUDED_AI_STRINGUTILS_H
diff --git a/thirdparty/assimp/include/assimp/Subdivision.h b/thirdparty/assimp/include/assimp/Subdivision.h
new file mode 100644
index 0000000000..43feb73b30
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Subdivision.h
@@ -0,0 +1,131 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a helper class to evaluate subdivision surfaces.*/
+#pragma once
+#ifndef AI_SUBDISIVION_H_INC
+#define AI_SUBDISIVION_H_INC
+
+#include <cstddef>
+#include <assimp/types.h>
+
+struct aiMesh;
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------
+/** Helper class to evaluate subdivision surfaces. Different algorithms
+ *  are provided for choice. */
+// ------------------------------------------------------------------------------
+class ASSIMP_API Subdivider {
+public:
+
+    /** Enumerates all supported subvidision algorithms */
+    enum Algorithm  {
+        CATMULL_CLARKE = 0x1
+    };
+
+    virtual ~Subdivider();
+
+    // ---------------------------------------------------------------
+    /** Create a subdivider of a specific type
+     *
+     *  @param algo Algorithm to be used for subdivision
+     *  @return Subdivider instance. */
+    static Subdivider* Create (Algorithm algo);
+
+    // ---------------------------------------------------------------
+    /** Subdivide a mesh using the selected algorithm
+     *
+     *  @param mesh First mesh to be subdivided. Must be in verbose
+     *    format.
+     *  @param out Receives the output mesh, allocated by me.
+     *  @param num Number of subdivisions to perform.
+     *  @param discard_input If true is passed, the input mesh is
+     *    deleted after the subdivision is complete. This can
+     *    improve performance because it allows the optimization
+     *    to reuse the existing mesh for intermediate results.
+     *  @pre out!=mesh*/
+    virtual void Subdivide ( aiMesh* mesh,
+        aiMesh*& out, unsigned int num,
+        bool discard_input = false) = 0;
+
+    // ---------------------------------------------------------------
+    /** Subdivide multiple meshes using the selected algorithm. This
+     *  avoids erroneous smoothing on objects consisting of multiple
+     *  per-material meshes. Usually, most 3d modellers smooth on a
+     *  per-object base, regardless the materials assigned to the
+     *  meshes.
+     *
+     *  @param smesh Array of meshes to be subdivided. Must be in
+     *    verbose format.
+     *  @param nmesh Number of meshes in smesh.
+     *  @param out Receives the output meshes. The array must be
+     *    sufficiently large (at least @c nmesh elements) and may not
+     *    overlap the input array. Output meshes map one-to-one to
+     *    their corresponding input meshes. The meshes are allocated
+     *    by the function.
+     *  @param discard_input If true is passed, input meshes are
+     *    deleted after the subdivision is complete. This can
+     *    improve performance because it allows the optimization
+     *    of reusing existing meshes for intermediate results.
+     *  @param num Number of subdivisions to perform.
+     *  @pre nmesh != 0, smesh and out may not overlap*/
+    virtual void Subdivide (
+        aiMesh** smesh,
+        size_t nmesh,
+        aiMesh** out,
+        unsigned int num,
+        bool discard_input = false) = 0;
+
+};
+
+inline
+Subdivider::~Subdivider() {
+    // empty
+}
+
+} // end namespace Assimp
+
+
+#endif // !!  AI_SUBDISIVION_H_INC
+
diff --git a/thirdparty/assimp/include/assimp/TinyFormatter.h b/thirdparty/assimp/include/assimp/TinyFormatter.h
new file mode 100644
index 0000000000..1226b482e6
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/TinyFormatter.h
@@ -0,0 +1,166 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  TinyFormatter.h
+ *  @brief Utility to format log messages more easily. Introduced
+ *    to get rid of the boost::format dependency. Much slinker,
+ *    basically just extends stringstream.
+ */
+#ifndef INCLUDED_TINY_FORMATTER_H
+#define INCLUDED_TINY_FORMATTER_H
+
+#include <sstream>
+
+namespace Assimp {
+namespace Formatter {
+
+// ------------------------------------------------------------------------------------------------
+/** stringstream utility. Usage:
+ *  @code
+ *  void writelog(const std::string&s);
+ *  void writelog(const std::wstring&s);
+ *  ...
+ *  writelog(format()<< "hi! this is a number: " << 4);
+ *  writelog(wformat()<< L"hi! this is a number: " << 4);
+ *
+ *  @endcode */
+template < typename T,
+    typename CharTraits = std::char_traits<T>,
+    typename Allocator  = std::allocator<T>
+>
+class basic_formatter
+{
+
+public:
+
+    typedef class std::basic_string<
+        T,CharTraits,Allocator
+    > string;
+
+    typedef class std::basic_ostringstream<
+        T,CharTraits,Allocator
+    > stringstream;
+
+public:
+
+    basic_formatter() {}
+
+    /* Allow basic_formatter<T>'s to be used almost interchangeably
+     * with std::(w)string or const (w)char* arguments because the
+     * conversion c'tor is called implicitly. */
+    template <typename TT>
+    basic_formatter(const TT& sin)  {
+        underlying << sin;
+    }
+
+
+    // The problem described here:
+    // https://sourceforge.net/tracker/?func=detail&atid=1067632&aid=3358562&group_id=226462
+    // can also cause trouble here. Apparently, older gcc versions sometimes copy temporaries
+    // being bound to const ref& function parameters. Copying streams is not permitted, though.
+    // This workaround avoids this by manually specifying a copy ctor.
+#if !defined(__GNUC__) || !defined(__APPLE__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+    explicit basic_formatter(const basic_formatter& other) {
+        underlying << (string)other;
+    }
+#endif
+
+
+public:
+
+    operator string () const {
+        return underlying.str();
+    }
+
+
+    /* note - this is declared const because binding temporaries does only
+     * work for const references, so many function prototypes will
+     * include const basic_formatter<T>& s but might still want to
+     * modify the formatted string without the need for a full copy.*/
+    template <typename TToken>
+    const basic_formatter& operator << (const TToken& s) const {
+        underlying << s;
+        return *this;
+    }
+
+    template <typename TToken>
+    basic_formatter& operator << (const TToken& s) {
+        underlying << s;
+        return *this;
+    }
+
+
+    // comma operator overloaded as well, choose your preferred way.
+    template <typename TToken>
+    const basic_formatter& operator, (const TToken& s) const {
+        underlying << s;
+        return *this;
+    }
+
+    template <typename TToken>
+    basic_formatter& operator, (const TToken& s) {
+        underlying << s;
+        return *this;
+    }
+
+    // Fix for MSVC8
+    // See https://sourceforge.net/projects/assimp/forums/forum/817654/topic/4372824
+    template <typename TToken>
+    basic_formatter& operator, (TToken& s) {
+        underlying << s;
+        return *this;
+    }
+
+
+private:
+    mutable stringstream underlying;
+};
+
+
+typedef basic_formatter< char > format;
+typedef basic_formatter< wchar_t > wformat;
+
+} // ! namespace Formatter
+
+} // ! namespace Assimp
+
+#endif
diff --git a/thirdparty/assimp/include/assimp/Vertex.h b/thirdparty/assimp/include/assimp/Vertex.h
new file mode 100644
index 0000000000..2a7f0256ad
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/Vertex.h
@@ -0,0 +1,348 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+/** @file Defines a helper class to represent an interleaved vertex
+  along with arithmetic operations to support vertex operations
+  such as subdivision, smoothing etc.
+
+  While the code is kept as general as possible, arithmetic operations
+  that are not currently well-defined (and would cause compile errors
+  due to missing operators in the math library), are commented.
+  */
+#ifndef AI_VERTEX_H_INC
+#define AI_VERTEX_H_INC
+
+#include <assimp/vector3.h>
+#include <assimp/mesh.h>
+#include <assimp/ai_assert.h>
+#include <functional>
+
+namespace Assimp    {
+
+    ///////////////////////////////////////////////////////////////////////////
+    // std::plus-family operates on operands with identical types - we need to
+    // support all the (vectype op float) combinations in vector maths.
+    // Providing T(float) would open the way to endless implicit conversions.
+    ///////////////////////////////////////////////////////////////////////////
+    namespace Intern {
+        template <typename T0, typename T1, typename TRES = T0> struct plus {
+            TRES operator() (const T0& t0, const T1& t1) const {
+                return t0+t1;
+            }
+        };
+        template <typename T0, typename T1, typename TRES = T0> struct minus {
+            TRES operator() (const T0& t0, const T1& t1) const {
+                return t0-t1;
+            }
+        };
+        template <typename T0, typename T1, typename TRES = T0> struct multiplies {
+            TRES operator() (const T0& t0, const T1& t1) const {
+                return t0*t1;
+            }
+        };
+        template <typename T0, typename T1, typename TRES = T0> struct divides {
+            TRES operator() (const T0& t0, const T1& t1) const {
+                return t0/t1;
+            }
+        };
+    }
+
+// ------------------------------------------------------------------------------------------------
+/** Intermediate description a vertex with all possible components. Defines a full set of
+ *  operators, so you may use such a 'Vertex' in basic arithmetics. All operators are applied
+ *  to *all* vertex components equally. This is useful for stuff like interpolation
+ *  or subdivision, but won't work if special handling is required for some vertex components. */
+// ------------------------------------------------------------------------------------------------
+class Vertex
+{
+    friend Vertex operator + (const Vertex&,const Vertex&);
+    friend Vertex operator - (const Vertex&,const Vertex&);
+
+//  friend Vertex operator + (const Vertex&,ai_real);
+//  friend Vertex operator - (const Vertex&,ai_real);
+    friend Vertex operator * (const Vertex&,ai_real);
+    friend Vertex operator / (const Vertex&,ai_real);
+
+//  friend Vertex operator + (ai_real, const Vertex&);
+//  friend Vertex operator - (ai_real, const Vertex&);
+    friend Vertex operator * (ai_real, const Vertex&);
+//  friend Vertex operator / (ai_real, const Vertex&);
+
+public:
+
+    Vertex() {}
+
+    // ----------------------------------------------------------------------------
+    /** Extract a particular vertex from a mesh and interleave all components */
+    explicit Vertex(const aiMesh* msh, unsigned int idx) {
+        ai_assert(idx < msh->mNumVertices);
+        position = msh->mVertices[idx];
+
+        if (msh->HasNormals()) {
+            normal = msh->mNormals[idx];
+        }
+
+        if (msh->HasTangentsAndBitangents()) {
+            tangent = msh->mTangents[idx];
+            bitangent = msh->mBitangents[idx];
+        }
+
+        for (unsigned int i = 0; msh->HasTextureCoords(i); ++i) {
+            texcoords[i] = msh->mTextureCoords[i][idx];
+        }
+
+        for (unsigned int i = 0; msh->HasVertexColors(i); ++i) {
+            colors[i] = msh->mColors[i][idx];
+        }
+    }
+
+    // ----------------------------------------------------------------------------
+    /** Extract a particular vertex from a anim mesh and interleave all components */
+    explicit Vertex(const aiAnimMesh* msh, unsigned int idx) {
+        ai_assert(idx < msh->mNumVertices);
+        position = msh->mVertices[idx];
+
+        if (msh->HasNormals()) {
+            normal = msh->mNormals[idx];
+        }
+
+        if (msh->HasTangentsAndBitangents()) {
+            tangent = msh->mTangents[idx];
+            bitangent = msh->mBitangents[idx];
+        }
+
+        for (unsigned int i = 0; msh->HasTextureCoords(i); ++i) {
+            texcoords[i] = msh->mTextureCoords[i][idx];
+        }
+
+        for (unsigned int i = 0; msh->HasVertexColors(i); ++i) {
+           colors[i] = msh->mColors[i][idx];
+        }
+    }
+
+public:
+
+    Vertex& operator += (const Vertex& v) {
+        *this = *this+v;
+        return *this;
+    }
+
+    Vertex& operator -= (const Vertex& v) {
+        *this = *this-v;
+        return *this;
+    }
+
+
+/*
+    Vertex& operator += (ai_real v) {
+        *this = *this+v;
+        return *this;
+    }
+
+    Vertex& operator -= (ai_real v) {
+        *this = *this-v;
+        return *this;
+    }
+*/
+    Vertex& operator *= (ai_real v) {
+        *this = *this*v;
+        return *this;
+    }
+
+    Vertex& operator /= (ai_real v) {
+        *this = *this/v;
+        return *this;
+    }
+
+public:
+
+    // ----------------------------------------------------------------------------
+    /** Convert back to non-interleaved storage */
+    void SortBack(aiMesh* out, unsigned int idx) const {
+
+        ai_assert(idx<out->mNumVertices);
+        out->mVertices[idx] = position;
+
+        if (out->HasNormals()) {
+            out->mNormals[idx] = normal;
+        }
+
+        if (out->HasTangentsAndBitangents()) {
+            out->mTangents[idx] = tangent;
+            out->mBitangents[idx] = bitangent;
+        }
+
+        for(unsigned int i = 0; out->HasTextureCoords(i); ++i) {
+            out->mTextureCoords[i][idx] = texcoords[i];
+        }
+
+        for(unsigned int i = 0; out->HasVertexColors(i); ++i) {
+            out->mColors[i][idx] = colors[i];
+        }
+    }
+
+private:
+
+    // ----------------------------------------------------------------------------
+    /** Construct from two operands and a binary operation to combine them */
+    template <template <typename t> class op> static Vertex BinaryOp(const Vertex& v0, const Vertex& v1) {
+        // this is a heavy task for the compiler to optimize ... *pray*
+
+        Vertex res;
+        res.position  = op<aiVector3D>()(v0.position,v1.position);
+        res.normal    = op<aiVector3D>()(v0.normal,v1.normal);
+        res.tangent   = op<aiVector3D>()(v0.tangent,v1.tangent);
+        res.bitangent = op<aiVector3D>()(v0.bitangent,v1.bitangent);
+
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+            res.texcoords[i] = op<aiVector3D>()(v0.texcoords[i],v1.texcoords[i]);
+        }
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+            res.colors[i] = op<aiColor4D>()(v0.colors[i],v1.colors[i]);
+        }
+        return res;
+    }
+
+    // ----------------------------------------------------------------------------
+    /** This time binary arithmetics of v0 with a floating-point number */
+    template <template <typename, typename, typename> class op> static Vertex BinaryOp(const Vertex& v0, ai_real f) {
+        // this is a heavy task for the compiler to optimize ... *pray*
+
+        Vertex res;
+        res.position  = op<aiVector3D,ai_real,aiVector3D>()(v0.position,f);
+        res.normal    = op<aiVector3D,ai_real,aiVector3D>()(v0.normal,f);
+        res.tangent   = op<aiVector3D,ai_real,aiVector3D>()(v0.tangent,f);
+        res.bitangent = op<aiVector3D,ai_real,aiVector3D>()(v0.bitangent,f);
+
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+            res.texcoords[i] = op<aiVector3D,ai_real,aiVector3D>()(v0.texcoords[i],f);
+        }
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+            res.colors[i] = op<aiColor4D,ai_real,aiColor4D>()(v0.colors[i],f);
+        }
+        return res;
+    }
+
+    // ----------------------------------------------------------------------------
+    /** This time binary arithmetics of v0 with a floating-point number */
+    template <template <typename, typename, typename> class op> static Vertex BinaryOp(ai_real f, const Vertex& v0) {
+        // this is a heavy task for the compiler to optimize ... *pray*
+
+        Vertex res;
+        res.position  = op<ai_real,aiVector3D,aiVector3D>()(f,v0.position);
+        res.normal    = op<ai_real,aiVector3D,aiVector3D>()(f,v0.normal);
+        res.tangent   = op<ai_real,aiVector3D,aiVector3D>()(f,v0.tangent);
+        res.bitangent = op<ai_real,aiVector3D,aiVector3D>()(f,v0.bitangent);
+
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+            res.texcoords[i] = op<ai_real,aiVector3D,aiVector3D>()(f,v0.texcoords[i]);
+        }
+        for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+            res.colors[i] = op<ai_real,aiColor4D,aiColor4D>()(f,v0.colors[i]);
+        }
+        return res;
+    }
+
+public:
+
+    aiVector3D position;
+    aiVector3D normal;
+    aiVector3D tangent, bitangent;
+
+    aiVector3D texcoords[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+    aiColor4D colors[AI_MAX_NUMBER_OF_COLOR_SETS];
+};
+
+
+
+// ------------------------------------------------------------------------------------------------
+AI_FORCE_INLINE Vertex operator + (const Vertex& v0,const Vertex& v1) {
+    return Vertex::BinaryOp<std::plus>(v0,v1);
+}
+
+AI_FORCE_INLINE Vertex operator - (const Vertex& v0,const Vertex& v1) {
+    return Vertex::BinaryOp<std::minus>(v0,v1);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+/*
+AI_FORCE_INLINE Vertex operator + (const Vertex& v0,ai_real f) {
+    return Vertex::BinaryOp<Intern::plus>(v0,f);
+}
+
+AI_FORCE_INLINE Vertex operator - (const Vertex& v0,ai_real f) {
+    return Vertex::BinaryOp<Intern::minus>(v0,f);
+}
+
+*/
+
+AI_FORCE_INLINE Vertex operator * (const Vertex& v0,ai_real f) {
+    return Vertex::BinaryOp<Intern::multiplies>(v0,f);
+}
+
+AI_FORCE_INLINE Vertex operator / (const Vertex& v0,ai_real f) {
+    return Vertex::BinaryOp<Intern::multiplies>(v0,1.f/f);
+}
+
+// ------------------------------------------------------------------------------------------------
+/*
+AI_FORCE_INLINE Vertex operator + (ai_real f,const Vertex& v0) {
+    return Vertex::BinaryOp<Intern::plus>(f,v0);
+}
+
+AI_FORCE_INLINE Vertex operator - (ai_real f,const Vertex& v0) {
+    return Vertex::BinaryOp<Intern::minus>(f,v0);
+}
+*/
+
+AI_FORCE_INLINE Vertex operator * (ai_real f,const Vertex& v0) {
+    return Vertex::BinaryOp<Intern::multiplies>(f,v0);
+}
+
+/*
+AI_FORCE_INLINE Vertex operator / (ai_real f,const Vertex& v0) {
+    return Vertex::BinaryOp<Intern::divides>(f,v0);
+}
+*/
+
+}
+#endif
diff --git a/thirdparty/assimp/include/assimp/XMLTools.h b/thirdparty/assimp/include/assimp/XMLTools.h
new file mode 100644
index 0000000000..b0d3276873
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/XMLTools.h
@@ -0,0 +1,83 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef INCLUDED_ASSIMP_XML_TOOLS_H
+#define INCLUDED_ASSIMP_XML_TOOLS_H
+
+#include <string>
+
+namespace Assimp {
+    // XML escape the 5 XML special characters (",',<,> and &) in |data|
+    // Based on http://stackoverflow.com/questions/5665231
+    std::string XMLEscape(const std::string& data) {
+        std::string buffer;
+
+        const size_t size = data.size();
+        buffer.reserve(size + size / 8);
+        for(size_t i = 0; i < size; ++i) {
+            const char c = data[i];
+            switch(c) {
+                case '&' :
+                    buffer.append("&amp;");
+                    break;
+                case '\"':
+                    buffer.append("&quot;");
+                    break;
+                case '\'':
+                    buffer.append("&apos;");
+                    break;
+                case '<' :
+                    buffer.append("&lt;");
+                    break;
+                case '>' :
+                    buffer.append("&gt;");
+                    break;
+                default:
+                    buffer.append(&c, 1);
+                    break;
+            }
+        }
+        return buffer;
+    }
+}
+
+#endif // INCLUDED_ASSIMP_XML_TOOLS_H
diff --git a/thirdparty/assimp/include/assimp/ai_assert.h b/thirdparty/assimp/include/assimp/ai_assert.h
new file mode 100644
index 0000000000..e5de5d3f36
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/ai_assert.h
@@ -0,0 +1,57 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#pragma once
+#ifndef AI_ASSERT_H_INC
+#define AI_ASSERT_H_INC
+
+#ifdef ASSIMP_BUILD_DEBUG
+#   include <assert.h>
+#   define ai_assert(expression) assert( expression )
+#   define ai_assert_entry()     assert( false )
+#else
+#   define  ai_assert(expression)
+#   define  ai_assert_entry() 
+#endif // ASSIMP_BUILD_DEBUG
+
+#endif // AI_ASSERT_H_INC
+
diff --git a/thirdparty/assimp/include/assimp/anim.h b/thirdparty/assimp/include/assimp/anim.h
new file mode 100644
index 0000000000..02e92739ec
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/anim.h
@@ -0,0 +1,577 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** 
+  * @file   anim.h
+  * @brief  Defines the data structures in which the imported animations
+  *         are returned.
+  */
+#pragma once
+#ifndef AI_ANIM_H_INC
+#define AI_ANIM_H_INC
+
+#include <assimp/types.h>
+#include <assimp/quaternion.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** A time-value pair specifying a certain 3D vector for the given time. */
+struct aiVectorKey
+{
+    /** The time of this key */
+    double mTime;
+
+    /** The value of this key */
+    C_STRUCT aiVector3D mValue;
+
+#ifdef __cplusplus
+
+    /// @brief  The default constructor.
+    aiVectorKey() AI_NO_EXCEPT
+    : mTime( 0.0 )
+    , mValue() {
+        // empty
+    }
+
+    /// @brief  Construction from a given time and key value.
+
+    aiVectorKey(double time, const aiVector3D& value)
+    : mTime( time )
+    , mValue( value ) {
+        // empty
+    }
+
+    typedef aiVector3D elem_type;
+
+    // Comparison operators. For use with std::find();
+    bool operator == (const aiVectorKey& rhs) const {
+        return rhs.mValue == this->mValue;
+    }
+    bool operator != (const aiVectorKey& rhs ) const {
+        return rhs.mValue != this->mValue;
+    }
+
+    // Relational operators. For use with std::sort();
+    bool operator < (const aiVectorKey& rhs ) const {
+        return mTime < rhs.mTime;
+    }
+    bool operator > (const aiVectorKey& rhs ) const {
+        return mTime > rhs.mTime;
+    }
+#endif // __cplusplus
+};
+
+// ---------------------------------------------------------------------------
+/** A time-value pair specifying a rotation for the given time.
+ *  Rotations are expressed with quaternions. */
+struct aiQuatKey
+{
+    /** The time of this key */
+    double mTime;
+
+    /** The value of this key */
+    C_STRUCT aiQuaternion mValue;
+
+#ifdef __cplusplus
+    aiQuatKey() AI_NO_EXCEPT
+    : mTime( 0.0 )
+    , mValue() {
+        // empty
+    }
+
+    /** Construction from a given time and key value */
+    aiQuatKey(double time, const aiQuaternion& value)
+        :   mTime   (time)
+        ,   mValue  (value)
+    {}
+
+    typedef aiQuaternion elem_type;
+
+    // Comparison operators. For use with std::find();
+    bool operator == (const aiQuatKey& rhs ) const {
+        return rhs.mValue == this->mValue;
+    }
+    bool operator != (const aiQuatKey& rhs ) const {
+        return rhs.mValue != this->mValue;
+    }
+
+    // Relational operators. For use with std::sort();
+    bool operator < (const aiQuatKey& rhs ) const {
+        return mTime < rhs.mTime;
+    }
+    bool operator > (const aiQuatKey& rhs ) const {
+        return mTime > rhs.mTime;
+    }
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Binds a anim-mesh to a specific point in time. */
+struct aiMeshKey
+{
+    /** The time of this key */
+    double mTime;
+
+    /** Index into the aiMesh::mAnimMeshes array of the
+     *  mesh corresponding to the #aiMeshAnim hosting this
+     *  key frame. The referenced anim mesh is evaluated
+     *  according to the rules defined in the docs for #aiAnimMesh.*/
+    unsigned int mValue;
+
+#ifdef __cplusplus
+
+    aiMeshKey() AI_NO_EXCEPT
+    : mTime(0.0)
+    , mValue(0)
+    {
+    }
+
+    /** Construction from a given time and key value */
+    aiMeshKey(double time, const unsigned int value)
+        :   mTime   (time)
+        ,   mValue  (value)
+    {}
+
+    typedef unsigned int elem_type;
+
+    // Comparison operators. For use with std::find();
+    bool operator == (const aiMeshKey& o) const {
+        return o.mValue == this->mValue;
+    }
+    bool operator != (const aiMeshKey& o) const {
+        return o.mValue != this->mValue;
+    }
+
+    // Relational operators. For use with std::sort();
+    bool operator < (const aiMeshKey& o) const {
+        return mTime < o.mTime;
+    }
+    bool operator > (const aiMeshKey& o) const {
+        return mTime > o.mTime;
+    }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Binds a morph anim mesh to a specific point in time. */
+struct aiMeshMorphKey
+{
+    /** The time of this key */
+    double mTime;
+
+    /** The values and weights at the time of this key */
+    unsigned int *mValues;
+    double *mWeights;
+
+    /** The number of values and weights */
+    unsigned int mNumValuesAndWeights;
+#ifdef __cplusplus
+	aiMeshMorphKey() AI_NO_EXCEPT
+		: mTime(0.0)
+		, mValues(nullptr)
+		, mWeights(nullptr)
+		, mNumValuesAndWeights(0)
+	{
+
+	}
+
+    ~aiMeshMorphKey()
+    {
+        if (mNumValuesAndWeights && mValues && mWeights) {
+            delete [] mValues;
+            delete [] mWeights;
+        }
+    }
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Defines how an animation channel behaves outside the defined time
+ *  range. This corresponds to aiNodeAnim::mPreState and
+ *  aiNodeAnim::mPostState.*/
+enum aiAnimBehaviour
+{
+    /** The value from the default node transformation is taken*/
+    aiAnimBehaviour_DEFAULT  = 0x0,
+
+    /** The nearest key value is used without interpolation */
+    aiAnimBehaviour_CONSTANT = 0x1,
+
+    /** The value of the nearest two keys is linearly
+     *  extrapolated for the current time value.*/
+    aiAnimBehaviour_LINEAR   = 0x2,
+
+    /** The animation is repeated.
+     *
+     *  If the animation key go from n to m and the current
+     *  time is t, use the value at (t-n) % (|m-n|).*/
+    aiAnimBehaviour_REPEAT   = 0x3,
+
+    /** This value is not used, it is just here to force the
+     *  the compiler to map this enum to a 32 Bit integer  */
+#ifndef SWIG
+    _aiAnimBehaviour_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Describes the animation of a single node. The name specifies the
+ *  bone/node which is affected by this animation channel. The keyframes
+ *  are given in three separate series of values, one each for position,
+ *  rotation and scaling. The transformation matrix computed from these
+ *  values replaces the node's original transformation matrix at a
+ *  specific time.
+ *  This means all keys are absolute and not relative to the bone default pose.
+ *  The order in which the transformations are applied is
+ *  - as usual - scaling, rotation, translation.
+ *
+ *  @note All keys are returned in their correct, chronological order.
+ *  Duplicate keys don't pass the validation step. Most likely there
+ *  will be no negative time values, but they are not forbidden also ( so
+ *  implementations need to cope with them! ) */
+struct aiNodeAnim {
+    /** The name of the node affected by this animation. The node
+     *  must exist and it must be unique.*/
+    C_STRUCT aiString mNodeName;
+
+    /** The number of position keys */
+    unsigned int mNumPositionKeys;
+
+    /** The position keys of this animation channel. Positions are
+     * specified as 3D vector. The array is mNumPositionKeys in size.
+     *
+     * If there are position keys, there will also be at least one
+     * scaling and one rotation key.*/
+    C_STRUCT aiVectorKey* mPositionKeys;
+
+    /** The number of rotation keys */
+    unsigned int mNumRotationKeys;
+
+    /** The rotation keys of this animation channel. Rotations are
+     *  given as quaternions,  which are 4D vectors. The array is
+     *  mNumRotationKeys in size.
+     *
+     * If there are rotation keys, there will also be at least one
+     * scaling and one position key. */
+    C_STRUCT aiQuatKey* mRotationKeys;
+
+    /** The number of scaling keys */
+    unsigned int mNumScalingKeys;
+
+    /** The scaling keys of this animation channel. Scalings are
+     *  specified as 3D vector. The array is mNumScalingKeys in size.
+     *
+     * If there are scaling keys, there will also be at least one
+     * position and one rotation key.*/
+    C_STRUCT aiVectorKey* mScalingKeys;
+
+    /** Defines how the animation behaves before the first
+     *  key is encountered.
+     *
+     *  The default value is aiAnimBehaviour_DEFAULT (the original
+     *  transformation matrix of the affected node is used).*/
+    C_ENUM aiAnimBehaviour mPreState;
+
+    /** Defines how the animation behaves after the last
+     *  key was processed.
+     *
+     *  The default value is aiAnimBehaviour_DEFAULT (the original
+     *  transformation matrix of the affected node is taken).*/
+    C_ENUM aiAnimBehaviour mPostState;
+
+#ifdef __cplusplus
+    aiNodeAnim() AI_NO_EXCEPT
+    : mNumPositionKeys( 0 )
+    , mPositionKeys( nullptr )
+    , mNumRotationKeys( 0 )
+    , mRotationKeys( nullptr )
+    , mNumScalingKeys( 0 )
+    , mScalingKeys( nullptr )
+    , mPreState( aiAnimBehaviour_DEFAULT )
+    , mPostState( aiAnimBehaviour_DEFAULT ) {
+         // empty
+    }
+
+    ~aiNodeAnim() {
+        delete [] mPositionKeys;
+        delete [] mRotationKeys;
+        delete [] mScalingKeys;
+    }
+#endif // __cplusplus
+};
+
+// ---------------------------------------------------------------------------
+/** Describes vertex-based animations for a single mesh or a group of
+ *  meshes. Meshes carry the animation data for each frame in their
+ *  aiMesh::mAnimMeshes array. The purpose of aiMeshAnim is to
+ *  define keyframes linking each mesh attachment to a particular
+ *  point in time. */
+struct aiMeshAnim
+{
+    /** Name of the mesh to be animated. An empty string is not allowed,
+     *  animated meshes need to be named (not necessarily uniquely,
+     *  the name can basically serve as wild-card to select a group
+     *  of meshes with similar animation setup)*/
+    C_STRUCT aiString mName;
+
+    /** Size of the #mKeys array. Must be 1, at least. */
+    unsigned int mNumKeys;
+
+    /** Key frames of the animation. May not be NULL. */
+    C_STRUCT aiMeshKey* mKeys;
+
+#ifdef __cplusplus
+
+    aiMeshAnim() AI_NO_EXCEPT
+        : mNumKeys()
+        , mKeys()
+    {}
+
+    ~aiMeshAnim()
+    {
+        delete[] mKeys;
+    }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Describes a morphing animation of a given mesh. */
+struct aiMeshMorphAnim
+{
+    /** Name of the mesh to be animated. An empty string is not allowed,
+     *  animated meshes need to be named (not necessarily uniquely,
+     *  the name can basically serve as wildcard to select a group
+     *  of meshes with similar animation setup)*/
+    C_STRUCT aiString mName;
+
+    /** Size of the #mKeys array. Must be 1, at least. */
+    unsigned int mNumKeys;
+
+    /** Key frames of the animation. May not be NULL. */
+    C_STRUCT aiMeshMorphKey* mKeys;
+
+#ifdef __cplusplus
+
+    aiMeshMorphAnim() AI_NO_EXCEPT
+        : mNumKeys()
+        , mKeys()
+    {}
+
+    ~aiMeshMorphAnim()
+    {
+        delete[] mKeys;
+    }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** An animation consists of key-frame data for a number of nodes. For
+ *  each node affected by the animation a separate series of data is given.*/
+struct aiAnimation {
+    /** The name of the animation. If the modeling package this data was
+     *  exported from does support only a single animation channel, this
+     *  name is usually empty (length is zero). */
+    C_STRUCT aiString mName;
+
+    /** Duration of the animation in ticks.  */
+    double mDuration;
+
+    /** Ticks per second. 0 if not specified in the imported file */
+    double mTicksPerSecond;
+
+    /** The number of bone animation channels. Each channel affects
+     *  a single node. */
+    unsigned int mNumChannels;
+
+    /** The node animation channels. Each channel affects a single node.
+     *  The array is mNumChannels in size. */
+    C_STRUCT aiNodeAnim** mChannels;
+
+
+    /** The number of mesh animation channels. Each channel affects
+     *  a single mesh and defines vertex-based animation. */
+    unsigned int mNumMeshChannels;
+
+    /** The mesh animation channels. Each channel affects a single mesh.
+     *  The array is mNumMeshChannels in size. */
+    C_STRUCT aiMeshAnim** mMeshChannels;
+
+    /** The number of mesh animation channels. Each channel affects
+     *  a single mesh and defines morphing animation. */
+    unsigned int mNumMorphMeshChannels;
+
+    /** The morph mesh animation channels. Each channel affects a single mesh.
+     *  The array is mNumMorphMeshChannels in size. */
+    C_STRUCT aiMeshMorphAnim **mMorphMeshChannels;
+
+#ifdef __cplusplus
+    aiAnimation() AI_NO_EXCEPT
+    : mDuration(-1.)
+    , mTicksPerSecond(0.)
+    , mNumChannels(0)
+    , mChannels(nullptr)
+    , mNumMeshChannels(0)
+    , mMeshChannels(nullptr)
+    , mNumMorphMeshChannels(0)
+    , mMorphMeshChannels(nullptr) {
+        // empty
+    }
+
+    ~aiAnimation() {
+        // DO NOT REMOVE THIS ADDITIONAL CHECK
+        if ( mNumChannels && mChannels )  {
+            for( unsigned int a = 0; a < mNumChannels; a++) {
+                delete mChannels[ a ];
+            }
+
+            delete [] mChannels;
+        }
+        if (mNumMeshChannels && mMeshChannels)  {
+            for( unsigned int a = 0; a < mNumMeshChannels; a++) {
+                delete mMeshChannels[a];
+            }
+
+            delete [] mMeshChannels;
+        }
+        if (mNumMorphMeshChannels && mMorphMeshChannels) {
+                for( unsigned int a = 0; a < mNumMorphMeshChannels; a++) {
+                        delete mMorphMeshChannels[a];
+                }
+            
+            delete [] mMorphMeshChannels;
+        }
+    }
+#endif // __cplusplus
+};
+
+#ifdef __cplusplus
+
+}
+
+/// @brief  Some C++ utilities for inter- and extrapolation
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** 
+  * @brief CPP-API: Utility class to simplify interpolations of various data types.
+  *
+  *  The type of interpolation is chosen automatically depending on the
+  *  types of the arguments. 
+  */
+template <typename T>
+struct Interpolator
+{
+    // ------------------------------------------------------------------
+    /** @brief Get the result of the interpolation between a,b.
+     *
+     *  The interpolation algorithm depends on the type of the operands.
+     *  aiQuaternion's and aiQuatKey's SLERP, the rest does a simple
+     *  linear interpolation. */
+    void operator () (T& out,const T& a, const T& b, ai_real d) const {
+        out = a + (b-a)*d;
+    }
+}; // ! Interpolator <T>
+
+//! @cond Never
+
+template <>
+struct Interpolator <aiQuaternion>  {
+    void operator () (aiQuaternion& out,const aiQuaternion& a,
+        const aiQuaternion& b, ai_real d) const
+    {
+        aiQuaternion::Interpolate(out,a,b,d);
+    }
+}; // ! Interpolator <aiQuaternion>
+
+template <>
+struct Interpolator <unsigned int>  {
+    void operator () (unsigned int& out,unsigned int a,
+        unsigned int b, ai_real d) const
+    {
+        out = d>0.5f ? b : a;
+    }
+}; // ! Interpolator <aiQuaternion>
+
+template <>
+struct Interpolator<aiVectorKey>  {
+    void operator () (aiVector3D& out,const aiVectorKey& a,
+        const aiVectorKey& b, ai_real d) const
+    {
+        Interpolator<aiVector3D> ipl;
+        ipl(out,a.mValue,b.mValue,d);
+    }
+}; // ! Interpolator <aiVectorKey>
+
+template <>
+struct Interpolator<aiQuatKey>  {
+    void operator () (aiQuaternion& out, const aiQuatKey& a,
+        const aiQuatKey& b, ai_real d) const
+    {
+        Interpolator<aiQuaternion> ipl;
+        ipl(out,a.mValue,b.mValue,d);
+    }
+}; // ! Interpolator <aiQuatKey>
+
+template <>
+struct Interpolator<aiMeshKey>     {
+    void operator () (unsigned int& out, const aiMeshKey& a,
+        const aiMeshKey& b, ai_real d) const
+    {
+        Interpolator<unsigned int> ipl;
+        ipl(out,a.mValue,b.mValue,d);
+    }
+}; // ! Interpolator <aiQuatKey>
+
+//! @endcond
+
+} //  ! end namespace Assimp
+
+#endif // __cplusplus
+
+#endif // AI_ANIM_H_INC
diff --git a/thirdparty/assimp/include/assimp/camera.h b/thirdparty/assimp/include/assimp/camera.h
new file mode 100644
index 0000000000..99daf69934
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/camera.h
@@ -0,0 +1,226 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file camera.h
+ *  @brief Defines the aiCamera data structure
+ */
+
+#pragma once
+#ifndef AI_CAMERA_H_INC
+#define AI_CAMERA_H_INC
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** Helper structure to describe a virtual camera.
+ *
+ * Cameras have a representation in the node graph and can be animated.
+ * An important aspect is that the camera itself is also part of the
+ * scenegraph. This means, any values such as the look-at vector are not
+ * *absolute*, they're <b>relative</b> to the coordinate system defined
+ * by the node which corresponds to the camera. This allows for camera
+ * animations. For static cameras parameters like the 'look-at' or 'up' vectors
+ * are usually specified directly in aiCamera, but beware, they could also
+ * be encoded in the node transformation. The following (pseudo)code sample
+ * shows how to do it: <br><br>
+ * @code
+ * // Get the camera matrix for a camera at a specific time
+ * // if the node hierarchy for the camera does not contain
+ * // at least one animated node this is a static computation
+ * get-camera-matrix (node sceneRoot, camera cam) : matrix
+ * {
+ *    node   cnd = find-node-for-camera(cam)
+ *    matrix cmt = identity()
+ *
+ *    // as usual - get the absolute camera transformation for this frame
+ *    for each node nd in hierarchy from sceneRoot to cnd
+ *      matrix cur
+ *      if (is-animated(nd))
+ *         cur = eval-animation(nd)
+ *      else cur = nd->mTransformation;
+ *      cmt = mult-matrices( cmt, cur )
+ *    end for
+ *
+ *    // now multiply with the camera's own local transform
+ *    cam = mult-matrices (cam, get-camera-matrix(cmt) )
+ * }
+ * @endcode
+ *
+ * @note some file formats (such as 3DS, ASE) export a "target point" -
+ * the point the camera is looking at (it can even be animated). Assimp
+ * writes the target point as a subnode of the camera's main node,
+ * called "<camName>.Target". However this is just additional information
+ * then the transformation tracks of the camera main node make the
+ * camera already look in the right direction.
+ *
+*/
+struct aiCamera
+{
+    /** The name of the camera.
+     *
+     *  There must be a node in the scenegraph with the same name.
+     *  This node specifies the position of the camera in the scene
+     *  hierarchy and can be animated.
+     */
+    C_STRUCT aiString mName;
+
+    /** Position of the camera relative to the coordinate space
+     *  defined by the corresponding node.
+     *
+     *  The default value is 0|0|0.
+     */
+    C_STRUCT aiVector3D mPosition;
+
+
+    /** 'Up' - vector of the camera coordinate system relative to
+     *  the coordinate space defined by the corresponding node.
+     *
+     *  The 'right' vector of the camera coordinate system is
+     *  the cross product of  the up and lookAt vectors.
+     *  The default value is 0|1|0. The vector
+     *  may be normalized, but it needn't.
+     */
+    C_STRUCT aiVector3D mUp;
+
+
+    /** 'LookAt' - vector of the camera coordinate system relative to
+     *  the coordinate space defined by the corresponding node.
+     *
+     *  This is the viewing direction of the user.
+     *  The default value is 0|0|1. The vector
+     *  may be normalized, but it needn't.
+     */
+    C_STRUCT aiVector3D mLookAt;
+
+
+    /** Half horizontal field of view angle, in radians.
+     *
+     *  The field of view angle is the angle between the center
+     *  line of the screen and the left or right border.
+     *  The default value is 1/4PI.
+     */
+    float mHorizontalFOV;
+
+    /** Distance of the near clipping plane from the camera.
+     *
+     * The value may not be 0.f (for arithmetic reasons to prevent
+     * a division through zero). The default value is 0.1f.
+     */
+    float mClipPlaneNear;
+
+    /** Distance of the far clipping plane from the camera.
+     *
+     * The far clipping plane must, of course, be further away than the
+     * near clipping plane. The default value is 1000.f. The ratio
+     * between the near and the far plane should not be too
+     * large (between 1000-10000 should be ok) to avoid floating-point
+     * inaccuracies which could lead to z-fighting.
+     */
+    float mClipPlaneFar;
+
+
+    /** Screen aspect ratio.
+     *
+     * This is the ration between the width and the height of the
+     * screen. Typical values are 4/3, 1/2 or 1/1. This value is
+     * 0 if the aspect ratio is not defined in the source file.
+     * 0 is also the default value.
+     */
+    float mAspect;
+
+#ifdef __cplusplus
+
+    aiCamera() AI_NO_EXCEPT
+        : mUp               (0.f,1.f,0.f)
+        , mLookAt           (0.f,0.f,1.f)
+        , mHorizontalFOV    (0.25f * (float)AI_MATH_PI)
+        , mClipPlaneNear    (0.1f)
+        , mClipPlaneFar     (1000.f)
+        , mAspect           (0.f)
+    {}
+
+    /** @brief Get a *right-handed* camera matrix from me
+     *  @param out Camera matrix to be filled
+     */
+    void GetCameraMatrix (aiMatrix4x4& out) const
+    {
+        /** todo: test ... should work, but i'm not absolutely sure */
+
+        /** We don't know whether these vectors are already normalized ...*/
+        aiVector3D zaxis = mLookAt;     zaxis.Normalize();
+        aiVector3D yaxis = mUp;         yaxis.Normalize();
+        aiVector3D xaxis = mUp^mLookAt; xaxis.Normalize();
+
+        out.a4 = -(xaxis * mPosition);
+        out.b4 = -(yaxis * mPosition);
+        out.c4 = -(zaxis * mPosition);
+
+        out.a1 = xaxis.x;
+        out.a2 = xaxis.y;
+        out.a3 = xaxis.z;
+
+        out.b1 = yaxis.x;
+        out.b2 = yaxis.y;
+        out.b3 = yaxis.z;
+
+        out.c1 = zaxis.x;
+        out.c2 = zaxis.y;
+        out.c3 = zaxis.z;
+
+        out.d1 = out.d2 = out.d3 = 0.f;
+        out.d4 = 1.f;
+    }
+
+#endif
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AI_CAMERA_H_INC
diff --git a/thirdparty/assimp/include/assimp/cexport.h b/thirdparty/assimp/include/assimp/cexport.h
new file mode 100644
index 0000000000..1d62dc26b3
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/cexport.h
@@ -0,0 +1,261 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2011, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  cexport.h
+*  @brief Defines the C-API for the Assimp export interface
+*/
+#pragma once
+#ifndef AI_EXPORT_H_INC
+#define AI_EXPORT_H_INC
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+// Public ASSIMP data structures
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aiScene;  // aiScene.h
+struct aiFileIO; // aiFileIO.h
+
+// --------------------------------------------------------------------------------
+/** Describes an file format which Assimp can export to. Use #aiGetExportFormatCount() to
+* learn how many export formats the current Assimp build supports and #aiGetExportFormatDescription()
+* to retrieve a description of an export format option.
+*/
+struct aiExportFormatDesc
+{
+    /// a short string ID to uniquely identify the export format. Use this ID string to
+    /// specify which file format you want to export to when calling #aiExportScene().
+    /// Example: "dae" or "obj"
+    const char* id;
+
+    /// A short description of the file format to present to users. Useful if you want
+    /// to allow the user to select an export format.
+    const char* description;
+
+    /// Recommended file extension for the exported file in lower case.
+    const char* fileExtension;
+};
+
+
+// --------------------------------------------------------------------------------
+/** Returns the number of export file formats available in the current Assimp build.
+ * Use aiGetExportFormatDescription() to retrieve infos of a specific export format.
+ */
+ASSIMP_API size_t aiGetExportFormatCount(void);
+
+// --------------------------------------------------------------------------------
+/** Returns a description of the nth export file format. Use #aiGetExportFormatCount()
+ * to learn how many export formats are supported. The description must be released by
+ * calling aiReleaseExportFormatDescription afterwards.
+ * @param pIndex Index of the export format to retrieve information for. Valid range is
+ *    0 to #aiGetExportFormatCount()
+ * @return A description of that specific export format. NULL if pIndex is out of range.
+ */
+ASSIMP_API const C_STRUCT aiExportFormatDesc* aiGetExportFormatDescription( size_t pIndex);
+
+// --------------------------------------------------------------------------------
+/** Release a description of the nth export file format. Must be returned by
+* aiGetExportFormatDescription
+* @param desc Pointer to the description
+*/
+ASSIMP_API void aiReleaseExportFormatDescription( const C_STRUCT aiExportFormatDesc *desc );
+
+// --------------------------------------------------------------------------------
+/** Create a modifiable copy of a scene.
+ *  This is useful to import files via Assimp, change their topology and
+ *  export them again. Since the scene returned by the various importer functions
+ *  is const, a modifiable copy is needed.
+ *  @param pIn Valid scene to be copied
+ *  @param pOut Receives a modifyable copy of the scene. Use aiFreeScene() to
+ *    delete it again.
+ */
+ASSIMP_API void aiCopyScene(const C_STRUCT aiScene* pIn,
+    C_STRUCT aiScene** pOut);
+
+
+// --------------------------------------------------------------------------------
+/** Frees a scene copy created using aiCopyScene() */
+ASSIMP_API void aiFreeScene(const C_STRUCT aiScene* pIn);
+
+// --------------------------------------------------------------------------------
+/** Exports the given scene to a chosen file format and writes the result file(s) to disk.
+* @param pScene The scene to export. Stays in possession of the caller, is not changed by the function.
+*   The scene is expected to conform to Assimp's Importer output format as specified
+*   in the @link data Data Structures Page @endlink. In short, this means the model data
+*   should use a right-handed coordinate systems, face winding should be counter-clockwise
+*   and the UV coordinate origin is assumed to be in the upper left. If your input data
+*   uses different conventions, have a look at the last parameter.
+* @param pFormatId ID string to specify to which format you want to export to. Use
+* aiGetExportFormatCount() / aiGetExportFormatDescription() to learn which export formats are available.
+* @param pFileName Output file to write
+* @param pPreprocessing Accepts any choice of the #aiPostProcessSteps enumerated
+*   flags, but in reality only a subset of them makes sense here. Specifying
+*   'preprocessing' flags is useful if the input scene does not conform to
+*   Assimp's default conventions as specified in the @link data Data Structures Page @endlink.
+*   In short, this means the geometry data should use a right-handed coordinate systems, face
+*   winding should be counter-clockwise and the UV coordinate origin is assumed to be in
+*   the upper left. The #aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+*   #aiProcess_FlipWindingOrder flags are used in the import side to allow users
+*   to have those defaults automatically adapted to their conventions. Specifying those flags
+*   for exporting has the opposite effect, respectively. Some other of the
+*   #aiPostProcessSteps enumerated values may be useful as well, but you'll need
+*   to try out what their effect on the exported file is. Many formats impose
+*   their own restrictions on the structure of the geometry stored therein,
+*   so some preprocessing may have little or no effect at all, or may be
+*   redundant as exporters would apply them anyhow. A good example
+*   is triangulation - whilst you can enforce it by specifying
+*   the #aiProcess_Triangulate flag, most export formats support only
+*   triangulate data so they would run the step anyway.
+*
+*   If assimp detects that the input scene was directly taken from the importer side of
+*   the library (i.e. not copied using aiCopyScene and potetially modified afterwards),
+*   any postprocessing steps already applied to the scene will not be applied again, unless
+*   they show non-idempotent behaviour (#aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+*   #aiProcess_FlipWindingOrder).
+* @return a status code indicating the result of the export
+* @note Use aiCopyScene() to get a modifiable copy of a previously
+*   imported scene.
+*/
+ASSIMP_API aiReturn aiExportScene( const C_STRUCT aiScene* pScene,
+    const char* pFormatId,
+    const char* pFileName,
+    unsigned int pPreprocessing);
+
+
+// --------------------------------------------------------------------------------
+/** Exports the given scene to a chosen file format using custom IO logic supplied by you.
+* @param pScene The scene to export. Stays in possession of the caller, is not changed by the function.
+* @param pFormatId ID string to specify to which format you want to export to. Use
+* aiGetExportFormatCount() / aiGetExportFormatDescription() to learn which export formats are available.
+* @param pFileName Output file to write
+* @param pIO custom IO implementation to be used. Use this if you use your own storage methods.
+*   If none is supplied, a default implementation using standard file IO is used. Note that
+*   #aiExportSceneToBlob is provided as convenience function to export to memory buffers.
+* @param pPreprocessing Please see the documentation for #aiExportScene
+* @return a status code indicating the result of the export
+* @note Include <aiFileIO.h> for the definition of #aiFileIO.
+* @note Use aiCopyScene() to get a modifiable copy of a previously
+*   imported scene.
+*/
+ASSIMP_API aiReturn aiExportSceneEx( const C_STRUCT aiScene* pScene,
+    const char* pFormatId,
+    const char* pFileName,
+    C_STRUCT aiFileIO* pIO,
+    unsigned int pPreprocessing );
+
+// --------------------------------------------------------------------------------
+/** Describes a blob of exported scene data. Use #aiExportSceneToBlob() to create a blob containing an
+* exported scene. The memory referred by this structure is owned by Assimp.
+* to free its resources. Don't try to free the memory on your side - it will crash for most build configurations
+* due to conflicting heaps.
+*
+* Blobs can be nested - each blob may reference another blob, which may in turn reference another blob and so on.
+* This is used when exporters write more than one output file for a given #aiScene. See the remarks for
+* #aiExportDataBlob::name for more information.
+*/
+struct aiExportDataBlob
+{
+    /// Size of the data in bytes
+    size_t size;
+
+    /// The data.
+    void* data;
+
+    /** Name of the blob. An empty string always
+        indicates the first (and primary) blob,
+        which contains the actual file data.
+        Any other blobs are auxiliary files produced
+        by exporters (i.e. material files). Existence
+        of such files depends on the file format. Most
+        formats don't split assets across multiple files.
+
+        If used, blob names usually contain the file
+        extension that should be used when writing
+        the data to disc.
+     */
+    C_STRUCT aiString name;
+
+    /** Pointer to the next blob in the chain or NULL if there is none. */
+    C_STRUCT aiExportDataBlob * next;
+
+#ifdef __cplusplus
+    /// Default constructor
+    aiExportDataBlob() { size = 0; data = next = NULL; }
+    /// Releases the data
+    ~aiExportDataBlob() { delete [] static_cast<unsigned char*>( data ); delete next; }
+
+private:
+    // no copying
+    aiExportDataBlob(const aiExportDataBlob& );
+    aiExportDataBlob& operator= (const aiExportDataBlob& );
+#endif // __cplusplus
+};
+
+// --------------------------------------------------------------------------------
+/** Exports the given scene to a chosen file format. Returns the exported data as a binary blob which
+* you can write into a file or something. When you're done with the data, use #aiReleaseExportBlob()
+* to free the resources associated with the export.
+* @param pScene The scene to export. Stays in possession of the caller, is not changed by the function.
+* @param pFormatId ID string to specify to which format you want to export to. Use
+* #aiGetExportFormatCount() / #aiGetExportFormatDescription() to learn which export formats are available.
+* @param pPreprocessing Please see the documentation for #aiExportScene
+* @return the exported data or NULL in case of error
+*/
+ASSIMP_API const C_STRUCT aiExportDataBlob* aiExportSceneToBlob( const C_STRUCT aiScene* pScene, const char* pFormatId,
+    unsigned int pPreprocessing );
+
+// --------------------------------------------------------------------------------
+/** Releases the memory associated with the given exported data. Use this function to free a data blob
+* returned by aiExportScene().
+* @param pData the data blob returned by #aiExportSceneToBlob
+*/
+ASSIMP_API void aiReleaseExportBlob( const C_STRUCT aiExportDataBlob* pData );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ASSIMP_BUILD_NO_EXPORT
+#endif // AI_EXPORT_H_INC
diff --git a/thirdparty/assimp/include/assimp/cfileio.h b/thirdparty/assimp/include/assimp/cfileio.h
new file mode 100644
index 0000000000..8f7ca45469
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/cfileio.h
@@ -0,0 +1,138 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file cfileio.h
+ *  @brief Defines generic C routines to access memory-mapped files
+ */
+#pragma once
+#ifndef AI_FILEIO_H_INC
+#define AI_FILEIO_H_INC
+
+#include <assimp/types.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct aiFileIO;
+struct aiFile;
+
+// aiFile callbacks
+typedef size_t          (*aiFileWriteProc) (C_STRUCT aiFile*,   const char*, size_t, size_t);
+typedef size_t          (*aiFileReadProc)  (C_STRUCT aiFile*,   char*, size_t,size_t);
+typedef size_t          (*aiFileTellProc)  (C_STRUCT aiFile*);
+typedef void            (*aiFileFlushProc) (C_STRUCT aiFile*);
+typedef C_ENUM aiReturn (*aiFileSeek)      (C_STRUCT aiFile*, size_t, C_ENUM aiOrigin);
+
+// aiFileIO callbacks
+typedef C_STRUCT aiFile* (*aiFileOpenProc)  (C_STRUCT aiFileIO*, const char*, const char*);
+typedef void             (*aiFileCloseProc) (C_STRUCT aiFileIO*, C_STRUCT aiFile*);
+
+// Represents user-defined data
+typedef char* aiUserData;
+
+// ----------------------------------------------------------------------------------
+/** @brief C-API: File system callbacks
+ *
+ *  Provided are functions to open and close files. Supply a custom structure to
+ *  the import function. If you don't, a default implementation is used. Use custom
+ *  file systems to enable reading from other sources, such as ZIPs
+ *  or memory locations. */
+struct aiFileIO
+{
+    /** Function used to open a new file
+     */
+    aiFileOpenProc OpenProc;
+
+    /** Function used to close an existing file
+     */
+    aiFileCloseProc CloseProc;
+
+    /** User-defined, opaque data */
+    aiUserData UserData;
+};
+
+// ----------------------------------------------------------------------------------
+/** @brief C-API: File callbacks
+ *
+ *  Actually, it's a data structure to wrap a set of fXXXX (e.g fopen)
+ *  replacement functions.
+ *
+ *  The default implementation of the functions utilizes the fXXX functions from
+ *  the CRT. However, you can supply a custom implementation to Assimp by
+ *  delivering a custom aiFileIO. Use this to enable reading from other sources,
+ *  such as ZIP archives or memory locations. */
+struct aiFile
+{
+    /** Callback to read from a file */
+    aiFileReadProc ReadProc;
+
+    /** Callback to write to a file */
+    aiFileWriteProc WriteProc;
+
+    /** Callback to retrieve the current position of
+     *  the file cursor (ftell())
+     */
+    aiFileTellProc TellProc;
+
+    /** Callback to retrieve the size of the file,
+     *  in bytes
+     */
+    aiFileTellProc FileSizeProc;
+
+    /** Callback to set the current position
+     * of the file cursor (fseek())
+     */
+    aiFileSeek SeekProc;
+
+    /** Callback to flush the file contents
+     */
+    aiFileFlushProc FlushProc;
+
+    /** User-defined, opaque data
+     */
+    aiUserData UserData;
+};
+
+#ifdef __cplusplus
+}
+#endif
+#endif // AI_FILEIO_H_INC
diff --git a/thirdparty/assimp/include/assimp/cimport.h b/thirdparty/assimp/include/assimp/cimport.h
new file mode 100644
index 0000000000..dbd10f1370
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/cimport.h
@@ -0,0 +1,565 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  cimport.h
+ *  @brief Defines the C-API to the Open Asset Import Library.
+ */
+#pragma once
+#ifndef AI_ASSIMP_H_INC
+#define AI_ASSIMP_H_INC
+
+#include <assimp/types.h>
+#include "importerdesc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aiScene;  // aiScene.h
+struct aiFileIO; // aiFileIO.h
+typedef void (*aiLogStreamCallback)(const char* /* message */, char* /* user */);
+
+// --------------------------------------------------------------------------------
+/** C-API: Represents a log stream. A log stream receives all log messages and
+ *  streams them _somewhere_.
+ *  @see aiGetPredefinedLogStream
+ *  @see aiAttachLogStream
+ *  @see aiDetachLogStream */
+// --------------------------------------------------------------------------------
+struct aiLogStream
+{
+    /** callback to be called */
+    aiLogStreamCallback callback;
+
+    /** user data to be passed to the callback */
+    char* user;
+};
+
+
+// --------------------------------------------------------------------------------
+/** C-API: Represents an opaque set of settings to be used during importing.
+ *  @see aiCreatePropertyStore
+ *  @see aiReleasePropertyStore
+ *  @see aiImportFileExWithProperties
+ *  @see aiSetPropertyInteger
+ *  @see aiSetPropertyFloat
+ *  @see aiSetPropertyString
+ *  @see aiSetPropertyMatrix
+ */
+// --------------------------------------------------------------------------------
+struct aiPropertyStore { char sentinel; };
+
+/** Our own C boolean type */
+typedef int aiBool;
+
+#define AI_FALSE 0
+#define AI_TRUE 1
+
+// --------------------------------------------------------------------------------
+/** Reads the given file and returns its content.
+ *
+ * If the call succeeds, the imported data is returned in an aiScene structure.
+ * The data is intended to be read-only, it stays property of the ASSIMP
+ * library and will be stable until aiReleaseImport() is called. After you're
+ * done with it, call aiReleaseImport() to free the resources associated with
+ * this file. If the import fails, NULL is returned instead. Call
+ * aiGetErrorString() to retrieve a human-readable error text.
+ * @param pFile Path and filename of the file to be imported,
+ *   expected to be a null-terminated c-string. NULL is not a valid value.
+ * @param pFlags Optional post processing steps to be executed after
+ *   a successful import. Provide a bitwise combination of the
+ *   #aiPostProcessSteps flags.
+ * @return Pointer to the imported data or NULL if the import failed.
+ */
+ASSIMP_API const C_STRUCT aiScene* aiImportFile(
+    const char* pFile,
+    unsigned int pFlags);
+
+// --------------------------------------------------------------------------------
+/** Reads the given file using user-defined I/O functions and returns
+ *   its content.
+ *
+ * If the call succeeds, the imported data is returned in an aiScene structure.
+ * The data is intended to be read-only, it stays property of the ASSIMP
+ * library and will be stable until aiReleaseImport() is called. After you're
+ * done with it, call aiReleaseImport() to free the resources associated with
+ * this file. If the import fails, NULL is returned instead. Call
+ * aiGetErrorString() to retrieve a human-readable error text.
+ * @param pFile Path and filename of the file to be imported,
+ *   expected to be a null-terminated c-string. NULL is not a valid value.
+ * @param pFlags Optional post processing steps to be executed after
+ *   a successful import. Provide a bitwise combination of the
+ *   #aiPostProcessSteps flags.
+ * @param pFS aiFileIO structure. Will be used to open the model file itself
+ *   and any other files the loader needs to open.  Pass NULL to use the default
+ *   implementation.
+ * @return Pointer to the imported data or NULL if the import failed.
+ * @note Include <aiFileIO.h> for the definition of #aiFileIO.
+ */
+ASSIMP_API const C_STRUCT aiScene* aiImportFileEx(
+    const char* pFile,
+    unsigned int pFlags,
+    C_STRUCT aiFileIO* pFS);
+
+// --------------------------------------------------------------------------------
+/** Same as #aiImportFileEx, but adds an extra parameter containing importer settings.
+ *
+ * @param pFile Path and filename of the file to be imported,
+ *   expected to be a null-terminated c-string. NULL is not a valid value.
+ * @param pFlags Optional post processing steps to be executed after
+ *   a successful import. Provide a bitwise combination of the
+ *   #aiPostProcessSteps flags.
+ * @param pFS aiFileIO structure. Will be used to open the model file itself
+ *   and any other files the loader needs to open.  Pass NULL to use the default
+ *   implementation.
+ * @param pProps #aiPropertyStore instance containing import settings.
+ * @return Pointer to the imported data or NULL if the import failed.
+ * @note Include <aiFileIO.h> for the definition of #aiFileIO.
+ * @see aiImportFileEx
+ */
+ASSIMP_API const C_STRUCT aiScene* aiImportFileExWithProperties(
+    const char* pFile,
+    unsigned int pFlags,
+    C_STRUCT aiFileIO* pFS,
+    const C_STRUCT aiPropertyStore* pProps);
+
+// --------------------------------------------------------------------------------
+/** Reads the given file from a given memory buffer,
+ *
+ * If the call succeeds, the contents of the file are returned as a pointer to an
+ * aiScene object. The returned data is intended to be read-only, the importer keeps
+ * ownership of the data and will destroy it upon destruction. If the import fails,
+ * NULL is returned.
+ * A human-readable error description can be retrieved by calling aiGetErrorString().
+ * @param pBuffer Pointer to the file data
+ * @param pLength Length of pBuffer, in bytes
+ * @param pFlags Optional post processing steps to be executed after
+ *   a successful import. Provide a bitwise combination of the
+ *   #aiPostProcessSteps flags. If you wish to inspect the imported
+ *   scene first in order to fine-tune your post-processing setup,
+ *   consider to use #aiApplyPostProcessing().
+ * @param pHint An additional hint to the library. If this is a non empty string,
+ *   the library looks for a loader to support the file extension specified by pHint
+ *   and passes the file to the first matching loader. If this loader is unable to
+ *   completely the request, the library continues and tries to determine the file
+ *   format on its own, a task that may or may not be successful.
+ *   Check the return value, and you'll know ...
+ * @return A pointer to the imported data, NULL if the import failed.
+ *
+ * @note This is a straightforward way to decode models from memory
+ * buffers, but it doesn't handle model formats that spread their
+ * data across multiple files or even directories. Examples include
+ * OBJ or MD3, which outsource parts of their material info into
+ * external scripts. If you need full functionality, provide
+ * a custom IOSystem to make Assimp find these files and use
+ * the regular aiImportFileEx()/aiImportFileExWithProperties() API.
+ */
+ASSIMP_API const C_STRUCT aiScene* aiImportFileFromMemory(
+    const char* pBuffer,
+    unsigned int pLength,
+    unsigned int pFlags,
+    const char* pHint);
+
+// --------------------------------------------------------------------------------
+/** Same as #aiImportFileFromMemory, but adds an extra parameter containing importer settings.
+ *
+ * @param pBuffer Pointer to the file data
+ * @param pLength Length of pBuffer, in bytes
+ * @param pFlags Optional post processing steps to be executed after
+ *   a successful import. Provide a bitwise combination of the
+ *   #aiPostProcessSteps flags. If you wish to inspect the imported
+ *   scene first in order to fine-tune your post-processing setup,
+ *   consider to use #aiApplyPostProcessing().
+ * @param pHint An additional hint to the library. If this is a non empty string,
+ *   the library looks for a loader to support the file extension specified by pHint
+ *   and passes the file to the first matching loader. If this loader is unable to
+ *   completely the request, the library continues and tries to determine the file
+ *   format on its own, a task that may or may not be successful.
+ *   Check the return value, and you'll know ...
+ * @param pProps #aiPropertyStore instance containing import settings.
+ * @return A pointer to the imported data, NULL if the import failed.
+ *
+ * @note This is a straightforward way to decode models from memory
+ * buffers, but it doesn't handle model formats that spread their
+ * data across multiple files or even directories. Examples include
+ * OBJ or MD3, which outsource parts of their material info into
+ * external scripts. If you need full functionality, provide
+ * a custom IOSystem to make Assimp find these files and use
+ * the regular aiImportFileEx()/aiImportFileExWithProperties() API.
+ * @see aiImportFileFromMemory
+ */
+ASSIMP_API const C_STRUCT aiScene* aiImportFileFromMemoryWithProperties(
+    const char* pBuffer,
+    unsigned int pLength,
+    unsigned int pFlags,
+    const char* pHint,
+    const C_STRUCT aiPropertyStore* pProps);
+
+// --------------------------------------------------------------------------------
+/** Apply post-processing to an already-imported scene.
+ *
+ * This is strictly equivalent to calling #aiImportFile()/#aiImportFileEx with the
+ * same flags. However, you can use this separate function to inspect the imported
+ * scene first to fine-tune your post-processing setup.
+ * @param pScene Scene to work on.
+ * @param pFlags Provide a bitwise combination of the #aiPostProcessSteps flags.
+ * @return A pointer to the post-processed data. Post processing is done in-place,
+ *   meaning this is still the same #aiScene which you passed for pScene. However,
+ *   _if_ post-processing failed, the scene could now be NULL. That's quite a rare
+ *   case, post processing steps are not really designed to 'fail'. To be exact,
+ *   the #aiProcess_ValidateDataStructure flag is currently the only post processing step
+ *   which can actually cause the scene to be reset to NULL.
+ */
+ASSIMP_API const C_STRUCT aiScene* aiApplyPostProcessing(
+    const C_STRUCT aiScene* pScene,
+    unsigned int pFlags);
+
+// --------------------------------------------------------------------------------
+/** Get one of the predefine log streams. This is the quick'n'easy solution to
+ *  access Assimp's log system. Attaching a log stream can slightly reduce Assimp's
+ *  overall import performance.
+ *
+ *  Usage is rather simple (this will stream the log to a file, named log.txt, and
+ *  the stdout stream of the process:
+ *  @code
+ *    struct aiLogStream c;
+ *    c = aiGetPredefinedLogStream(aiDefaultLogStream_FILE,"log.txt");
+ *    aiAttachLogStream(&c);
+ *    c = aiGetPredefinedLogStream(aiDefaultLogStream_STDOUT,NULL);
+ *    aiAttachLogStream(&c);
+ *  @endcode
+ *
+ *  @param pStreams One of the #aiDefaultLogStream enumerated values.
+ *  @param file Solely for the #aiDefaultLogStream_FILE flag: specifies the file to write to.
+ *    Pass NULL for all other flags.
+ *  @return The log stream. callback is set to NULL if something went wrong.
+ */
+ASSIMP_API C_STRUCT aiLogStream aiGetPredefinedLogStream(
+    C_ENUM aiDefaultLogStream pStreams,
+    const char* file);
+
+// --------------------------------------------------------------------------------
+/** Attach a custom log stream to the libraries' logging system.
+ *
+ *  Attaching a log stream can slightly reduce Assimp's overall import
+ *  performance. Multiple log-streams can be attached.
+ *  @param stream Describes the new log stream.
+ *  @note To ensure proper destruction of the logging system, you need to manually
+ *    call aiDetachLogStream() on every single log stream you attach.
+ *    Alternatively (for the lazy folks) #aiDetachAllLogStreams is provided.
+ */
+ASSIMP_API void aiAttachLogStream(
+    const C_STRUCT aiLogStream* stream);
+
+// --------------------------------------------------------------------------------
+/** Enable verbose logging. Verbose logging includes debug-related stuff and
+ *  detailed import statistics. This can have severe impact on import performance
+ *  and memory consumption. However, it might be useful to find out why a file
+ *  didn't read correctly.
+ *  @param d AI_TRUE or AI_FALSE, your decision.
+ */
+ASSIMP_API void aiEnableVerboseLogging(aiBool d);
+
+// --------------------------------------------------------------------------------
+/** Detach a custom log stream from the libraries' logging system.
+ *
+ *  This is the counterpart of #aiAttachLogStream. If you attached a stream,
+ *  don't forget to detach it again.
+ *  @param stream The log stream to be detached.
+ *  @return AI_SUCCESS if the log stream has been detached successfully.
+ *  @see aiDetachAllLogStreams
+ */
+ASSIMP_API C_ENUM aiReturn aiDetachLogStream(
+    const C_STRUCT aiLogStream* stream);
+
+// --------------------------------------------------------------------------------
+/** Detach all active log streams from the libraries' logging system.
+ *  This ensures that the logging system is terminated properly and all
+ *  resources allocated by it are actually freed. If you attached a stream,
+ *  don't forget to detach it again.
+ *  @see aiAttachLogStream
+ *  @see aiDetachLogStream
+ */
+ASSIMP_API void aiDetachAllLogStreams(void);
+
+// --------------------------------------------------------------------------------
+/** Releases all resources associated with the given import process.
+ *
+ * Call this function after you're done with the imported data.
+ * @param pScene The imported data to release. NULL is a valid value.
+ */
+ASSIMP_API void aiReleaseImport(
+    const C_STRUCT aiScene* pScene);
+
+// --------------------------------------------------------------------------------
+/** Returns the error text of the last failed import process.
+ *
+ * @return A textual description of the error that occurred at the last
+ * import process. NULL if there was no error. There can't be an error if you
+ * got a non-NULL #aiScene from #aiImportFile/#aiImportFileEx/#aiApplyPostProcessing.
+ */
+ASSIMP_API const char* aiGetErrorString(void);
+
+// --------------------------------------------------------------------------------
+/** Returns whether a given file extension is supported by ASSIMP
+ *
+ * @param szExtension Extension for which the function queries support for.
+ * Must include a leading dot '.'. Example: ".3ds", ".md3"
+ * @return AI_TRUE if the file extension is supported.
+ */
+ASSIMP_API aiBool aiIsExtensionSupported(
+    const char* szExtension);
+
+// --------------------------------------------------------------------------------
+/** Get a list of all file extensions supported by ASSIMP.
+ *
+ * If a file extension is contained in the list this does, of course, not
+ * mean that ASSIMP is able to load all files with this extension.
+ * @param szOut String to receive the extension list.
+ * Format of the list: "*.3ds;*.obj;*.dae". NULL is not a valid parameter.
+ */
+ASSIMP_API void aiGetExtensionList(
+    C_STRUCT aiString* szOut);
+
+// --------------------------------------------------------------------------------
+/** Get the approximated storage required by an imported asset
+ * @param pIn Input asset.
+ * @param in Data structure to be filled.
+ */
+ASSIMP_API void aiGetMemoryRequirements(
+    const C_STRUCT aiScene* pIn,
+    C_STRUCT aiMemoryInfo* in);
+
+
+
+// --------------------------------------------------------------------------------
+/** Create an empty property store. Property stores are used to collect import
+ *  settings.
+ * @return New property store. Property stores need to be manually destroyed using
+ *   the #aiReleasePropertyStore API function.
+ */
+ASSIMP_API C_STRUCT aiPropertyStore* aiCreatePropertyStore(void);
+
+// --------------------------------------------------------------------------------
+/** Delete a property store.
+ * @param p Property store to be deleted.
+ */
+ASSIMP_API void aiReleasePropertyStore(C_STRUCT aiPropertyStore* p);
+
+// --------------------------------------------------------------------------------
+/** Set an integer property.
+ *
+ *  This is the C-version of #Assimp::Importer::SetPropertyInteger(). In the C
+ *  interface, properties are always shared by all imports. It is not possible to
+ *  specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ *   public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param value New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyInteger(
+    C_STRUCT aiPropertyStore* store,
+    const char* szName,
+    int value);
+
+// --------------------------------------------------------------------------------
+/** Set a floating-point property.
+ *
+ *  This is the C-version of #Assimp::Importer::SetPropertyFloat(). In the C
+ *  interface, properties are always shared by all imports. It is not possible to
+ *  specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ *   public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param value New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyFloat(
+    C_STRUCT aiPropertyStore* store,
+    const char* szName,
+    ai_real value);
+
+// --------------------------------------------------------------------------------
+/** Set a string property.
+ *
+ *  This is the C-version of #Assimp::Importer::SetPropertyString(). In the C
+ *  interface, properties are always shared by all imports. It is not possible to
+ *  specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ *   public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param st New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyString(
+    C_STRUCT aiPropertyStore* store,
+    const char* szName,
+    const C_STRUCT aiString* st);
+
+// --------------------------------------------------------------------------------
+/** Set a matrix property.
+ *
+ *  This is the C-version of #Assimp::Importer::SetPropertyMatrix(). In the C
+ *  interface, properties are always shared by all imports. It is not possible to
+ *  specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ *   public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param mat New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyMatrix(
+    C_STRUCT aiPropertyStore* store,
+    const char* szName,
+    const C_STRUCT aiMatrix4x4* mat);
+
+// --------------------------------------------------------------------------------
+/** Construct a quaternion from a 3x3 rotation matrix.
+ *  @param quat Receives the output quaternion.
+ *  @param mat Matrix to 'quaternionize'.
+ *  @see aiQuaternion(const aiMatrix3x3& pRotMatrix)
+ */
+ASSIMP_API void aiCreateQuaternionFromMatrix(
+    C_STRUCT aiQuaternion* quat,
+    const C_STRUCT aiMatrix3x3* mat);
+
+// --------------------------------------------------------------------------------
+/** Decompose a transformation matrix into its rotational, translational and
+ *  scaling components.
+ *
+ * @param mat Matrix to decompose
+ * @param scaling Receives the scaling component
+ * @param rotation Receives the rotational component
+ * @param position Receives the translational component.
+ * @see aiMatrix4x4::Decompose (aiVector3D&, aiQuaternion&, aiVector3D&) const;
+ */
+ASSIMP_API void aiDecomposeMatrix(
+    const C_STRUCT aiMatrix4x4* mat,
+    C_STRUCT aiVector3D* scaling,
+    C_STRUCT aiQuaternion* rotation,
+    C_STRUCT aiVector3D* position);
+
+// --------------------------------------------------------------------------------
+/** Transpose a 4x4 matrix.
+ *  @param mat Pointer to the matrix to be transposed
+ */
+ASSIMP_API void aiTransposeMatrix4(
+    C_STRUCT aiMatrix4x4* mat);
+
+// --------------------------------------------------------------------------------
+/** Transpose a 3x3 matrix.
+ *  @param mat Pointer to the matrix to be transposed
+ */
+ASSIMP_API void aiTransposeMatrix3(
+    C_STRUCT aiMatrix3x3* mat);
+
+// --------------------------------------------------------------------------------
+/** Transform a vector by a 3x3 matrix
+ *  @param vec Vector to be transformed.
+ *  @param mat Matrix to transform the vector with.
+ */
+ASSIMP_API void aiTransformVecByMatrix3(
+    C_STRUCT aiVector3D* vec,
+    const C_STRUCT aiMatrix3x3* mat);
+
+// --------------------------------------------------------------------------------
+/** Transform a vector by a 4x4 matrix
+ *  @param vec Vector to be transformed.
+ *  @param mat Matrix to transform the vector with.
+ */
+ASSIMP_API void aiTransformVecByMatrix4(
+    C_STRUCT aiVector3D* vec,
+    const C_STRUCT aiMatrix4x4* mat);
+
+// --------------------------------------------------------------------------------
+/** Multiply two 4x4 matrices.
+ *  @param dst First factor, receives result.
+ *  @param src Matrix to be multiplied with 'dst'.
+ */
+ASSIMP_API void aiMultiplyMatrix4(
+    C_STRUCT aiMatrix4x4* dst,
+    const C_STRUCT aiMatrix4x4* src);
+
+// --------------------------------------------------------------------------------
+/** Multiply two 3x3 matrices.
+ *  @param dst First factor, receives result.
+ *  @param src Matrix to be multiplied with 'dst'.
+ */
+ASSIMP_API void aiMultiplyMatrix3(
+    C_STRUCT aiMatrix3x3* dst,
+    const C_STRUCT aiMatrix3x3* src);
+
+// --------------------------------------------------------------------------------
+/** Get a 3x3 identity matrix.
+ *  @param mat Matrix to receive its personal identity
+ */
+ASSIMP_API void aiIdentityMatrix3(
+    C_STRUCT aiMatrix3x3* mat);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 identity matrix.
+ *  @param mat Matrix to receive its personal identity
+ */
+ASSIMP_API void aiIdentityMatrix4(
+    C_STRUCT aiMatrix4x4* mat);
+
+// --------------------------------------------------------------------------------
+/** Returns the number of import file formats available in the current Assimp build.
+ * Use aiGetImportFormatDescription() to retrieve infos of a specific import format.
+ */
+ASSIMP_API size_t aiGetImportFormatCount(void);
+
+// --------------------------------------------------------------------------------
+/** Returns a description of the nth import file format. Use #aiGetImportFormatCount()
+ * to learn how many import formats are supported.
+ * @param pIndex Index of the import format to retrieve information for. Valid range is
+ *    0 to #aiGetImportFormatCount()
+ * @return A description of that specific import format. NULL if pIndex is out of range.
+ */
+ASSIMP_API const C_STRUCT aiImporterDesc* aiGetImportFormatDescription( size_t pIndex);
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AI_ASSIMP_H_INC
diff --git a/thirdparty/assimp/include/assimp/color4.h b/thirdparty/assimp/include/assimp/color4.h
new file mode 100644
index 0000000000..3c97c8eda2
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/color4.h
@@ -0,0 +1,104 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file color4.h
+ *  @brief RGBA color structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_COLOR4D_H_INC
+#define AI_COLOR4D_H_INC
+
+#include "defs.h"
+
+#ifdef __cplusplus
+
+// ----------------------------------------------------------------------------------
+/** Represents a color in Red-Green-Blue space including an
+*   alpha component. Color values range from 0 to 1. */
+// ----------------------------------------------------------------------------------
+template <typename TReal>
+class aiColor4t
+{
+public:
+    aiColor4t() AI_NO_EXCEPT : r(), g(), b(), a() {}
+    aiColor4t (TReal _r, TReal _g, TReal _b, TReal _a)
+        : r(_r), g(_g), b(_b), a(_a) {}
+    explicit aiColor4t (TReal _r) : r(_r), g(_r), b(_r), a(_r) {}
+    aiColor4t (const aiColor4t& o) = default;
+
+public:
+    // combined operators
+    const aiColor4t& operator += (const aiColor4t& o);
+    const aiColor4t& operator -= (const aiColor4t& o);
+    const aiColor4t& operator *= (TReal f);
+    const aiColor4t& operator /= (TReal f);
+
+public:
+    // comparison
+    bool operator == (const aiColor4t& other) const;
+    bool operator != (const aiColor4t& other) const;
+    bool operator <  (const aiColor4t& other) const;
+
+    // color tuple access, rgba order
+    inline TReal operator[](unsigned int i) const;
+    inline TReal& operator[](unsigned int i);
+
+    /** check whether a color is (close to) black */
+    inline bool IsBlack() const;
+
+public:
+
+    // Red, green, blue and alpha color values
+    TReal r, g, b, a;
+};  // !struct aiColor4D
+
+typedef aiColor4t<ai_real> aiColor4D;
+
+#else
+
+struct aiColor4D {
+    ai_real r, g, b, a;
+};
+
+#endif // __cplusplus
+
+#endif // AI_COLOR4D_H_INC
diff --git a/thirdparty/assimp/include/assimp/color4.inl b/thirdparty/assimp/include/assimp/color4.inl
new file mode 100644
index 0000000000..3192d55f39
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/color4.inl
@@ -0,0 +1,205 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  color4.inl
+ *  @brief Inline implementation of aiColor4t<TReal> operators
+ */
+#pragma once
+#ifndef AI_COLOR4D_INL_INC
+#define AI_COLOR4D_INL_INC
+
+#ifdef __cplusplus
+#include "color4.h"
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiColor4t<TReal>& aiColor4t<TReal>::operator += (const aiColor4t<TReal>& o) {
+    r += o.r; g += o.g; b += o.b; a += o.a;
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiColor4t<TReal>& aiColor4t<TReal>::operator -= (const aiColor4t<TReal>& o) {
+    r -= o.r; g -= o.g; b -= o.b; a -= o.a;
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiColor4t<TReal>& aiColor4t<TReal>::operator *= (TReal f) {
+    r *= f; g *= f; b *= f; a *= f;
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiColor4t<TReal>& aiColor4t<TReal>::operator /= (TReal f) {
+    r /= f; g /= f; b /= f; a /= f;
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE TReal aiColor4t<TReal>::operator[](unsigned int i) const {
+    switch ( i ) {
+        case 0:
+            return r;
+        case 1:
+            return g;
+        case 2:
+            return b;
+        default:
+            break;
+    }
+    return r;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE TReal& aiColor4t<TReal>::operator[](unsigned int i) {
+    switch ( i ) {
+        case 0:
+            return r;
+        case 1:
+            return g;
+        case 2:
+            return b;
+        default:
+            break;
+    }
+    return r;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE bool aiColor4t<TReal>::operator== (const aiColor4t<TReal>& other) const {
+    return r == other.r && g == other.g && b == other.b && a == other.a;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE bool aiColor4t<TReal>::operator!= (const aiColor4t<TReal>& other) const {
+    return r != other.r || g != other.g || b != other.b || a != other.a;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE bool aiColor4t<TReal>::operator< (const aiColor4t<TReal>& other) const {
+    return r < other.r || (
+        r == other.r && (
+            g < other.g || (
+                g == other.g && (
+                    b < other.b || (
+                        b == other.b && (
+                            a < other.a
+                        )
+                    )
+                )
+            )
+        )
+    );
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiColor4t<TReal> operator + (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2)    {
+    return aiColor4t<TReal>( v1.r + v2.r, v1.g + v2.g, v1.b + v2.b, v1.a + v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiColor4t<TReal> operator - (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2)    {
+    return aiColor4t<TReal>( v1.r - v2.r, v1.g - v2.g, v1.b - v2.b, v1.a - v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiColor4t<TReal> operator * (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2)    {
+    return aiColor4t<TReal>( v1.r * v2.r, v1.g * v2.g, v1.b * v2.b, v1.a * v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiColor4t<TReal> operator / (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2)    {
+    return aiColor4t<TReal>( v1.r / v2.r, v1.g / v2.g, v1.b / v2.b, v1.a / v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiColor4t<TReal> operator * ( TReal f, const aiColor4t<TReal>& v)   {
+    return aiColor4t<TReal>( f*v.r, f*v.g, f*v.b, f*v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator * ( const aiColor4t<TReal>& v, TReal f)  {
+    return aiColor4t<TReal>( f*v.r, f*v.g, f*v.b, f*v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator / ( const aiColor4t<TReal>& v, TReal f)  {
+    return v * (1/f);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator / ( TReal f,const aiColor4t<TReal>& v)   {
+    return aiColor4t<TReal>(f,f,f,f)/v;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator + ( const aiColor4t<TReal>& v, TReal f)  {
+    return aiColor4t<TReal>( f+v.r, f+v.g, f+v.b, f+v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator - ( const aiColor4t<TReal>& v, TReal f)  {
+    return aiColor4t<TReal>( v.r-f, v.g-f, v.b-f, v.a-f);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator + ( TReal f, const aiColor4t<TReal>& v)  {
+    return aiColor4t<TReal>( f+v.r, f+v.g, f+v.b, f+v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE  aiColor4t<TReal> operator - ( TReal f, const aiColor4t<TReal>& v)  {
+    return aiColor4t<TReal>( f-v.r, f-v.g, f-v.b, f-v.a);
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline bool aiColor4t<TReal> :: IsBlack() const {
+    // The alpha component doesn't care here. black is black.
+    static const TReal epsilon = 10e-3f;
+    return std::fabs( r ) < epsilon && std::fabs( g ) < epsilon && std::fabs( b ) < epsilon;
+}
+
+#endif // __cplusplus
+#endif // AI_VECTOR3D_INL_INC
diff --git a/thirdparty/assimp/include/assimp/config.h.in b/thirdparty/assimp/include/assimp/config.h.in
new file mode 100644
index 0000000000..a37ff0b8c8
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/config.h.in
@@ -0,0 +1,992 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2018, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file config.h
+ *  @brief Defines constants for configurable properties for the library
+ *
+ *  Typically these properties are set via
+ *  #Assimp::Importer::SetPropertyFloat,
+ *  #Assimp::Importer::SetPropertyInteger or
+ *  #Assimp::Importer::SetPropertyString,
+ *  depending on the data type of a property. All properties have a
+ *  default value. See the doc for the mentioned methods for more details.
+ *
+ *  <br><br>
+ *  The corresponding functions for use with the plain-c API are:
+ *  #aiSetImportPropertyInteger,
+ *  #aiSetImportPropertyFloat,
+ *  #aiSetImportPropertyString
+ */
+#pragma once
+#ifndef AI_CONFIG_H_INC
+#define AI_CONFIG_H_INC
+
+
+// ###########################################################################
+// LIBRARY SETTINGS
+// General, global settings
+// ###########################################################################
+
+// ---------------------------------------------------------------------------
+/** @brief Enables time measurements.
+ *
+ *  If enabled, measures the time needed for each part of the loading
+ *  process (i.e. IO time, importing, postprocessing, ..) and dumps
+ *  these timings to the DefaultLogger. See the @link perf Performance
+ *  Page@endlink for more information on this topic.
+ *
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_GLOB_MEASURE_TIME  \
+    "GLOB_MEASURE_TIME"
+
+
+// ---------------------------------------------------------------------------
+/** @brief Global setting to disable generation of skeleton dummy meshes
+ *
+ * Skeleton dummy meshes are generated as a visualization aid in cases which
+ * the input data contains no geometry, but only animation data.
+ * Property data type: bool. Default value: false
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_IMPORT_NO_SKELETON_MESHES \
+    "IMPORT_NO_SKELETON_MESHES"
+
+
+
+# if 0 // not implemented yet
+// ---------------------------------------------------------------------------
+/** @brief Set Assimp's multithreading policy.
+ *
+ * This setting is ignored if Assimp was built without boost.thread
+ * support (ASSIMP_BUILD_NO_THREADING, which is implied by ASSIMP_BUILD_BOOST_WORKAROUND).
+ * Possible values are: -1 to let Assimp decide what to do, 0 to disable
+ * multithreading entirely and any number larger than 0 to force a specific
+ * number of threads. Assimp is always free to ignore this settings, which is
+ * merely a hint. Usually, the default value (-1) will be fine. However, if
+ * Assimp is used concurrently from multiple user threads, it might be useful
+ * to limit each Importer instance to a specific number of cores.
+ *
+ * For more information, see the @link threading Threading page@endlink.
+ * Property type: int, default value: -1.
+ */
+#define AI_CONFIG_GLOB_MULTITHREADING  \
+    "GLOB_MULTITHREADING"
+#endif
+
+// ###########################################################################
+// POST PROCESSING SETTINGS
+// Various stuff to fine-tune the behavior of a specific post processing step.
+// ###########################################################################
+
+
+// ---------------------------------------------------------------------------
+/** @brief Maximum bone count per mesh for the SplitbyBoneCount step.
+ *
+ * Meshes are split until the maximum number of bones is reached. The default
+ * value is AI_SBBC_DEFAULT_MAX_BONES, which may be altered at
+ * compile-time.
+ * Property data type: integer.
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_PP_SBBC_MAX_BONES \
+    "PP_SBBC_MAX_BONES"
+
+
+// default limit for bone count
+#if (!defined AI_SBBC_DEFAULT_MAX_BONES)
+#   define AI_SBBC_DEFAULT_MAX_BONES        60
+#endif
+
+
+// ---------------------------------------------------------------------------
+/** @brief  Specifies the maximum angle that may be between two vertex tangents
+ *         that their tangents and bi-tangents are smoothed.
+ *
+ * This applies to the CalcTangentSpace-Step. The angle is specified
+ * in degrees. The maximum value is 175.
+ * Property type: float. Default value: 45 degrees
+ */
+#define AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE \
+    "PP_CT_MAX_SMOOTHING_ANGLE"
+
+// ---------------------------------------------------------------------------
+/** @brief Source UV channel for tangent space computation.
+ *
+ * The specified channel must exist or an error will be raised.
+ * Property type: integer. Default value: 0
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_PP_CT_TEXTURE_CHANNEL_INDEX \
+    "PP_CT_TEXTURE_CHANNEL_INDEX"
+
+// ---------------------------------------------------------------------------
+/** @brief  Specifies the maximum angle that may be between two face normals
+ *          at the same vertex position that their are smoothed together.
+ *
+ * Sometimes referred to as 'crease angle'.
+ * This applies to the GenSmoothNormals-Step. The angle is specified
+ * in degrees, so 180 is PI. The default value is 175 degrees (all vertex
+ * normals are smoothed). The maximum value is 175, too. Property type: float.
+ * Warning: setting this option may cause a severe loss of performance. The
+ * performance is unaffected if the #AI_CONFIG_FAVOUR_SPEED flag is set but
+ * the output quality may be reduced.
+ */
+#define AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE \
+    "PP_GSN_MAX_SMOOTHING_ANGLE"
+
+
+// ---------------------------------------------------------------------------
+/** @brief Sets the colormap (= palette) to be used to decode embedded
+ *         textures in MDL (Quake or 3DGS) files.
+ *
+ * This must be a valid path to a file. The file is 768 (256*3) bytes
+ * large and contains RGB triplets for each of the 256 palette entries.
+ * The default value is colormap.lmp. If the file is not found,
+ * a default palette (from Quake 1) is used.
+ * Property type: string.
+ */
+#define AI_CONFIG_IMPORT_MDL_COLORMAP       \
+    "IMPORT_MDL_COLORMAP"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_RemoveRedundantMaterials step to
+ *  keep materials matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in *single*
+ * quotation marks. For example:<tt>
+ * "keep-me and_me_to anotherMaterialToBeKept \'name with whitespace\'"</tt>.
+ * If a material matches on of these names, it will not be modified or
+ * removed by the postprocessing step nor will other materials be replaced
+ * by a reference to it. <br>
+ * This option might be useful if you are using some magic material names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for materials not contained in the list.
+ * Property type: String. Default value: n/a
+ * @note Linefeeds, tabs or carriage returns are treated as whitespace.
+ *   Material names are case sensitive.
+ */
+#define AI_CONFIG_PP_RRM_EXCLUDE_LIST   \
+    "PP_RRM_EXCLUDE_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to
+ *  keep the scene hierarchy. Meshes are moved to worldspace, but
+ *  no optimization is performed (read: meshes with equal materials are not
+ *  joined. The total number of meshes won't change).
+ *
+ * This option could be of use for you if the scene hierarchy contains
+ * important additional information which you intend to parse.
+ * For rendering, you can still render all meshes in the scene without
+ * any transformations.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_PTV_KEEP_HIERARCHY     \
+    "PP_PTV_KEEP_HIERARCHY"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to normalize
+ *  all vertex components into the [-1,1] range. That is, a bounding box
+ *  for the whole scene is computed, the maximum component is taken and all
+ *  meshes are scaled appropriately (uniformly of course!).
+ *  This might be useful if you don't know the spatial dimension of the input
+ *  data*/
+#define AI_CONFIG_PP_PTV_NORMALIZE  \
+    "PP_PTV_NORMALIZE"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to use
+ *  a users defined matrix as the scene root node transformation before
+ *  transforming vertices.
+ *  Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION    \
+    "PP_PTV_ADD_ROOT_TRANSFORMATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to use
+ *  a users defined matrix as the scene root node transformation before
+ *  transforming vertices. This property correspond to the 'a1' component
+ *  of the transformation matrix.
+ *  Property type: aiMatrix4x4.
+ */
+#define AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION    \
+    "PP_PTV_ROOT_TRANSFORMATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_FindDegenerates step to
+ *  remove degenerated primitives from the import - immediately.
+ *
+ * The default behaviour converts degenerated triangles to lines and
+ * degenerated lines to points. See the documentation to the
+ * #aiProcess_FindDegenerates step for a detailed example of the various ways
+ * to get rid of these lines and points if you don't want them.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_FD_REMOVE \
+    "PP_FD_REMOVE"
+
+// ---------------------------------------------------------------------------
+/**
+ *  @brief  Configures the #aiProcess_FindDegenerates to check the area of a
+ *  trinagle to be greates than e-6. If this is not the case the triangle will
+ *  be removed if #AI_CONFIG_PP_FD_REMOVE is set to true.
+ */
+#define AI_CONFIG_PP_FD_CHECKAREA \
+    "PP_FD_CHECKAREA"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_OptimizeGraph step to preserve nodes
+ * matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in *single*
+ * quotation marks. For example:<tt>
+ * "keep-me and_me_to anotherNodeToBeKept \'name with whitespace\'"</tt>.
+ * If a node matches on of these names, it will not be modified or
+ * removed by the postprocessing step.<br>
+ * This option might be useful if you are using some magic node names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for nodes not contained in the list.
+ * Property type: String. Default value: n/a
+ * @note Linefeeds, tabs or carriage returns are treated as whitespace.
+ *   Node names are case sensitive.
+ */
+#define AI_CONFIG_PP_OG_EXCLUDE_LIST    \
+    "PP_OG_EXCLUDE_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the maximum number of triangles in a mesh.
+ *
+ * This is used by the "SplitLargeMeshes" PostProcess-Step to determine
+ * whether a mesh must be split or not.
+ * @note The default value is AI_SLM_DEFAULT_MAX_TRIANGLES
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_SLM_TRIANGLE_LIMIT \
+    "PP_SLM_TRIANGLE_LIMIT"
+
+// default value for AI_CONFIG_PP_SLM_TRIANGLE_LIMIT
+#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
+#   define AI_SLM_DEFAULT_MAX_TRIANGLES     1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the maximum number of vertices in a mesh.
+ *
+ * This is used by the "SplitLargeMeshes" PostProcess-Step to determine
+ * whether a mesh must be split or not.
+ * @note The default value is AI_SLM_DEFAULT_MAX_VERTICES
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_SLM_VERTEX_LIMIT \
+    "PP_SLM_VERTEX_LIMIT"
+
+// default value for AI_CONFIG_PP_SLM_VERTEX_LIMIT
+#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
+#   define AI_SLM_DEFAULT_MAX_VERTICES      1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the maximum number of bones affecting a single vertex
+ *
+ * This is used by the #aiProcess_LimitBoneWeights PostProcess-Step.
+ * @note The default value is AI_LMW_MAX_WEIGHTS
+ * Property type: integer.*/
+#define AI_CONFIG_PP_LBW_MAX_WEIGHTS    \
+    "PP_LBW_MAX_WEIGHTS"
+
+// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
+#if (!defined AI_LMW_MAX_WEIGHTS)
+#   define AI_LMW_MAX_WEIGHTS   0x4
+#endif // !! AI_LMW_MAX_WEIGHTS
+
+// ---------------------------------------------------------------------------
+/** @brief Lower the deboning threshold in order to remove more bones.
+ *
+ * This is used by the #aiProcess_Debone PostProcess-Step.
+ * @note The default value is AI_DEBONE_THRESHOLD
+ * Property type: float.*/
+#define AI_CONFIG_PP_DB_THRESHOLD \
+    "PP_DB_THRESHOLD"
+
+// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
+#if (!defined AI_DEBONE_THRESHOLD)
+#   define AI_DEBONE_THRESHOLD  1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+// ---------------------------------------------------------------------------
+/** @brief Require all bones qualify for deboning before removing any
+ *
+ * This is used by the #aiProcess_Debone PostProcess-Step.
+ * @note The default value is 0
+ * Property type: bool.*/
+#define AI_CONFIG_PP_DB_ALL_OR_NONE \
+    "PP_DB_ALL_OR_NONE"
+
+/** @brief Default value for the #AI_CONFIG_PP_ICL_PTCACHE_SIZE property
+ */
+#ifndef PP_ICL_PTCACHE_SIZE
+#   define PP_ICL_PTCACHE_SIZE 12
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the size of the post-transform vertex cache to optimize the
+ *    vertices for. This configures the #aiProcess_ImproveCacheLocality step.
+ *
+ * The size is given in vertices. Of course you can't know how the vertex
+ * format will exactly look like after the import returns, but you can still
+ * guess what your meshes will probably have.
+ * @note The default value is #PP_ICL_PTCACHE_SIZE. That results in slight
+ * performance improvements for most nVidia/AMD cards since 2002.
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_ICL_PTCACHE_SIZE   "PP_ICL_PTCACHE_SIZE"
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates components of the aiScene and aiMesh data structures
+ *  that can be excluded from the import using the #aiProcess_RemoveComponent step.
+ *
+ *  See the documentation to #aiProcess_RemoveComponent for more details.
+ */
+enum aiComponent
+{
+    /** Normal vectors */
+#ifdef SWIG
+    aiComponent_NORMALS = 0x2,
+#else
+    aiComponent_NORMALS = 0x2u,
+#endif
+
+    /** Tangents and bitangents go always together ... */
+#ifdef SWIG
+    aiComponent_TANGENTS_AND_BITANGENTS = 0x4,
+#else
+    aiComponent_TANGENTS_AND_BITANGENTS = 0x4u,
+#endif
+
+    /** ALL color sets
+     * Use aiComponent_COLORn(N) to specify the N'th set */
+    aiComponent_COLORS = 0x8,
+
+    /** ALL texture UV sets
+     * aiComponent_TEXCOORDn(N) to specify the N'th set  */
+    aiComponent_TEXCOORDS = 0x10,
+
+    /** Removes all bone weights from all meshes.
+     * The scenegraph nodes corresponding to the bones are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+    aiComponent_BONEWEIGHTS = 0x20,
+
+    /** Removes all node animations (aiScene::mAnimations).
+     * The corresponding scenegraph nodes are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+    aiComponent_ANIMATIONS = 0x40,
+
+    /** Removes all embedded textures (aiScene::mTextures) */
+    aiComponent_TEXTURES = 0x80,
+
+    /** Removes all light sources (aiScene::mLights).
+     * The corresponding scenegraph nodes are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+    aiComponent_LIGHTS = 0x100,
+
+    /** Removes all cameras (aiScene::mCameras).
+     * The corresponding scenegraph nodes are NOT removed.
+     * use the #aiProcess_OptimizeGraph step to do this */
+    aiComponent_CAMERAS = 0x200,
+
+    /** Removes all meshes (aiScene::mMeshes). */
+    aiComponent_MESHES = 0x400,
+
+    /** Removes all materials. One default material will
+     * be generated, so aiScene::mNumMaterials will be 1. */
+    aiComponent_MATERIALS = 0x800,
+
+
+    /** This value is not used. It is just there to force the
+     *  compiler to map this enum to a 32 Bit integer. */
+#ifndef SWIG
+    _aiComponent_Force32Bit = 0x9fffffff
+#endif
+};
+
+// Remove a specific color channel 'n'
+#define aiComponent_COLORSn(n) (1u << (n+20u))
+
+// Remove a specific UV channel 'n'
+#define aiComponent_TEXCOORDSn(n) (1u << (n+25u))
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_RemoveComponent step:
+ *  Specifies the parts of the data structure to be removed.
+ *
+ * See the documentation to this step for further details. The property
+ * is expected to be an integer, a bitwise combination of the
+ * #aiComponent flags defined above in this header. The default
+ * value is 0. Important: if no valid mesh is remaining after the
+ * step has been executed (e.g you thought it was funny to specify ALL
+ * of the flags defined above) the import FAILS. Mainly because there is
+ * no data to work on anymore ...
+ */
+#define AI_CONFIG_PP_RVC_FLAGS              \
+    "PP_RVC_FLAGS"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_SortByPType step:
+ *  Specifies which primitive types are removed by the step.
+ *
+ *  This is a bitwise combination of the aiPrimitiveType flags.
+ *  Specifying all of them is illegal, of course. A typical use would
+ *  be to exclude all line and point meshes from the import. This
+ *  is an integer property, its default value is 0.
+ */
+#define AI_CONFIG_PP_SBP_REMOVE             \
+    "PP_SBP_REMOVE"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_FindInvalidData step:
+ *  Specifies the floating-point accuracy for animation values. The step
+ *  checks for animation tracks where all frame values are absolutely equal
+ *  and removes them. This tweakable controls the epsilon for floating-point
+ *  comparisons - two keys are considered equal if the invariant
+ *  abs(n0-n1)>epsilon holds true for all vector respectively quaternion
+ *  components. The default value is 0.f - comparisons are exact then.
+ */
+#define AI_CONFIG_PP_FID_ANIM_ACCURACY              \
+    "PP_FID_ANIM_ACCURACY"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_FindInvalidData step:
+ *  Set to true to ignore texture coordinates. This may be useful if you have
+ *  to assign different kind of textures like one for the summer or one for the winter.
+ */
+#define AI_CONFIG_PP_FID_IGNORE_TEXTURECOORDS        \
+    "PP_FID_IGNORE_TEXTURECOORDS"
+
+// TransformUVCoords evaluates UV scalings
+#define AI_UVTRAFO_SCALING 0x1
+
+// TransformUVCoords evaluates UV rotations
+#define AI_UVTRAFO_ROTATION 0x2
+
+// TransformUVCoords evaluates UV translation
+#define AI_UVTRAFO_TRANSLATION 0x4
+
+// Everything baked together -> default value
+#define AI_UVTRAFO_ALL (AI_UVTRAFO_SCALING | AI_UVTRAFO_ROTATION | AI_UVTRAFO_TRANSLATION)
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_TransformUVCoords step:
+ *  Specifies which UV transformations are evaluated.
+ *
+ *  This is a bitwise combination of the AI_UVTRAFO_XXX flags (integer
+ *  property, of course). By default all transformations are enabled
+ * (AI_UVTRAFO_ALL).
+ */
+#define AI_CONFIG_PP_TUV_EVALUATE               \
+    "PP_TUV_EVALUATE"
+
+// ---------------------------------------------------------------------------
+/** @brief A hint to assimp to favour speed against import quality.
+ *
+ * Enabling this option may result in faster loading, but it needn't.
+ * It represents just a hint to loaders and post-processing steps to use
+ * faster code paths, if possible.
+ * This property is expected to be an integer, != 0 stands for true.
+ * The default value is 0.
+ */
+#define AI_CONFIG_FAVOUR_SPEED              \
+ "FAVOUR_SPEED"
+
+
+// ###########################################################################
+// IMPORTER SETTINGS
+// Various stuff to fine-tune the behaviour of specific importer plugins.
+// ###########################################################################
+
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will merge all geometry layers present
+ *    in the source file or take only the first.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS \
+    "IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read all materials present in the
+ *    source file or take only the referenced materials.
+ *
+ * This is void unless IMPORT_FBX_READ_MATERIALS=1.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ALL_MATERIALS \
+    "IMPORT_FBX_READ_ALL_MATERIALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read materials.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_MATERIALS \
+    "IMPORT_FBX_READ_MATERIALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read embedded textures.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_TEXTURES \
+    "IMPORT_FBX_READ_TEXTURES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read cameras.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_CAMERAS \
+    "IMPORT_FBX_READ_CAMERAS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read light sources.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_LIGHTS \
+    "IMPORT_FBX_READ_LIGHTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read animations.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ANIMATIONS \
+    "IMPORT_FBX_READ_ANIMATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will act in strict mode in which only
+ *    FBX 2013 is supported and any other sub formats are rejected. FBX 2013
+ *    is the primary target for the importer, so this format is best
+ *    supported and well-tested.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_STRICT_MODE \
+    "IMPORT_FBX_STRICT_MODE"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will preserve pivot points for
+ *    transformations (as extra nodes). If set to false, pivots and offsets
+ *    will be evaluated whenever possible.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS \
+    "IMPORT_FBX_PRESERVE_PIVOTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the importer will drop empty animation curves or
+ *    animation curves which match the bind pose transformation over their
+ *    entire defined range.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES \
+    "IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will use the legacy embedded texture naming.
+*
+* The default value is false (0)
+* Property type: bool
+*/
+#define AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING \
+	"AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING"
+	
+// ---------------------------------------------------------------------------
+/** @brief  Set the vertex animation keyframe to be imported
+ *
+ * ASSIMP does not support vertex keyframes (only bone animation is supported).
+ * The library reads only one frame of models with vertex animations.
+ * By default this is the first frame.
+ * \note The default value is 0. This option applies to all importers.
+ *   However, it is also possible to override the global setting
+ *   for a specific loader. You can use the AI_CONFIG_IMPORT_XXX_KEYFRAME
+ *   options (where XXX is a placeholder for the file format for which you
+ *   want to override the global setting).
+ * Property type: integer.
+ */
+#define AI_CONFIG_IMPORT_GLOBAL_KEYFRAME    "IMPORT_GLOBAL_KEYFRAME"
+
+#define AI_CONFIG_IMPORT_MD3_KEYFRAME       "IMPORT_MD3_KEYFRAME"
+#define AI_CONFIG_IMPORT_MD2_KEYFRAME       "IMPORT_MD2_KEYFRAME"
+#define AI_CONFIG_IMPORT_MDL_KEYFRAME       "IMPORT_MDL_KEYFRAME"
+#define AI_CONFIG_IMPORT_MDC_KEYFRAME       "IMPORT_MDC_KEYFRAME"
+#define AI_CONFIG_IMPORT_SMD_KEYFRAME       "IMPORT_SMD_KEYFRAME"
+#define AI_CONFIG_IMPORT_UNREAL_KEYFRAME    "IMPORT_UNREAL_KEYFRAME"
+
+// ---------------------------------------------------------------------------
+/** Smd load multiple animations
+ *
+ *  Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_SMD_LOAD_ANIMATION_LIST "IMPORT_SMD_LOAD_ANIMATION_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the AC loader to collect all surfaces which have the
+ *    "Backface cull" flag set in separate meshes.
+ *
+ *  Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_AC_SEPARATE_BFCULL \
+    "IMPORT_AC_SEPARATE_BFCULL"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures whether the AC loader evaluates subdivision surfaces (
+ *  indicated by the presence of the 'subdiv' attribute in the file). By
+ *  default, Assimp performs the subdivision using the standard
+ *  Catmull-Clark algorithm
+ *
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_AC_EVAL_SUBDIVISION    \
+    "IMPORT_AC_EVAL_SUBDIVISION"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the UNREAL 3D loader to separate faces with different
+ *    surface flags (e.g. two-sided vs. single-sided).
+ *
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS \
+    "UNREAL_HANDLE_FLAGS"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the terragen import plugin to compute uv's for
+ *  terrains, if not given. Furthermore a default texture is assigned.
+ *
+ * UV coordinates for terrains are so simple to compute that you'll usually
+ * want to compute them on your own, if you need them. This option is intended
+ * for model viewers which want to offer an easy way to apply textures to
+ * terrains.
+ * * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_TER_MAKE_UVS \
+    "IMPORT_TER_MAKE_UVS"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the ASE loader to always reconstruct normal vectors
+ *  basing on the smoothing groups loaded from the file.
+ *
+ * Some ASE files have carry invalid normals, other don't.
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_ASE_RECONSTRUCT_NORMALS    \
+    "IMPORT_ASE_RECONSTRUCT_NORMALS"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the M3D loader to detect and process multi-part
+ *    Quake player models.
+ *
+ * These models usually consist of 3 files, lower.md3, upper.md3 and
+ * head.md3. If this property is set to true, Assimp will try to load and
+ * combine all three files if one of them is loaded.
+ * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_MD3_HANDLE_MULTIPART \
+    "IMPORT_MD3_HANDLE_MULTIPART"
+
+// ---------------------------------------------------------------------------
+/** @brief  Tells the MD3 loader which skin files to load.
+ *
+ * When loading MD3 files, Assimp checks whether a file
+ * [md3_file_name]_[skin_name].skin is existing. These files are used by
+ * Quake III to be able to assign different skins (e.g. red and blue team)
+ * to models. 'default', 'red', 'blue' are typical skin names.
+ * Property type: String. Default value: "default".
+ */
+#define AI_CONFIG_IMPORT_MD3_SKIN_NAME \
+    "IMPORT_MD3_SKIN_NAME"
+
+// ---------------------------------------------------------------------------
+/** @brief  Specify the Quake 3 shader file to be used for a particular
+ *  MD3 file. This can also be a search path.
+ *
+ * By default Assimp's behaviour is as follows: If a MD3 file
+ * <tt>any_path/models/any_q3_subdir/model_name/file_name.md3</tt> is
+ * loaded, the library tries to locate the corresponding shader file in
+ * <tt>any_path/scripts/model_name.shader</tt>. This property overrides this
+ * behaviour. It can either specify a full path to the shader to be loaded
+ * or alternatively the path (relative or absolute) to the directory where
+ * the shaders for all MD3s to be loaded reside. Assimp attempts to open
+ * <tt>IMPORT_MD3_SHADER_SRC/model_name.shader</tt> first, <tt>IMPORT_MD3_SHADER_SRC/file_name.shader</tt>
+ * is the fallback file. Note that IMPORT_MD3_SHADER_SRC should have a terminal (back)slash.
+ * Property type: String. Default value: n/a.
+ */
+#define AI_CONFIG_IMPORT_MD3_SHADER_SRC \
+    "IMPORT_MD3_SHADER_SRC"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the LWO loader to load just one layer from the model.
+ *
+ * LWO files consist of layers and in some cases it could be useful to load
+ * only one of them. This property can be either a string - which specifies
+ * the name of the layer - or an integer - the index of the layer. If the
+ * property is not set the whole LWO model is loaded. Loading fails if the
+ * requested layer is not available. The layer index is zero-based and the
+ * layer name may not be empty.<br>
+ * Property type: Integer. Default value: all layers are loaded.
+ */
+#define AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY         \
+    "IMPORT_LWO_ONE_LAYER_ONLY"
+
+// ---------------------------------------------------------------------------
+/** @brief  Configures the MD5 loader to not load the MD5ANIM file for
+ *  a MD5MESH file automatically.
+ *
+ * The default strategy is to look for a file with the same name but the
+ * MD5ANIM extension in the same directory. If it is found, it is loaded
+ * and combined with the MD5MESH file. This configuration option can be
+ * used to disable this behaviour.
+ *
+ * * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_MD5_NO_ANIM_AUTOLOAD           \
+    "IMPORT_MD5_NO_ANIM_AUTOLOAD"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the begin of the time range for which the LWS loader
+ *    evaluates animations and computes aiNodeAnim's.
+ *
+ * Assimp provides full conversion of LightWave's envelope system, including
+ * pre and post conditions. The loader computes linearly subsampled animation
+ * chanels with the frame rate given in the LWS file. This property defines
+ * the start time. Note: animation channels are only generated if a node
+ * has at least one envelope with more tan one key assigned. This property.
+ * is given in frames, '0' is the first frame. By default, if this property
+ * is not set, the importer takes the animation start from the input LWS
+ * file ('FirstFrame' line)<br>
+ * Property type: Integer. Default value: taken from file.
+ *
+ * @see AI_CONFIG_IMPORT_LWS_ANIM_END - end of the imported time range
+ */
+#define AI_CONFIG_IMPORT_LWS_ANIM_START         \
+    "IMPORT_LWS_ANIM_START"
+#define AI_CONFIG_IMPORT_LWS_ANIM_END           \
+    "IMPORT_LWS_ANIM_END"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the output frame rate of the IRR loader.
+ *
+ * IRR animations are difficult to convert for Assimp and there will
+ * always be a loss of quality. This setting defines how many keys per second
+ * are returned by the converter.<br>
+ * Property type: integer. Default value: 100
+ */
+#define AI_CONFIG_IMPORT_IRR_ANIM_FPS               \
+    "IMPORT_IRR_ANIM_FPS"
+
+// ---------------------------------------------------------------------------
+/** @brief Ogre Importer will try to find referenced materials from this file.
+ *
+ * Ogre meshes reference with material names, this does not tell Assimp the file
+ * where it is located in. Assimp will try to find the source file in the following
+ * order: <material-name>.material, <mesh-filename-base>.material and
+ * lastly the material name defined by this config property.
+ * <br>
+ * Property type: String. Default value: Scene.material.
+ */
+#define AI_CONFIG_IMPORT_OGRE_MATERIAL_FILE \
+    "IMPORT_OGRE_MATERIAL_FILE"
+
+// ---------------------------------------------------------------------------
+/** @brief Ogre Importer detect the texture usage from its filename.
+ *
+ * Ogre material texture units do not define texture type, the textures usage
+ * depends on the used shader or Ogre's fixed pipeline. If this config property
+ * is true Assimp will try to detect the type from the textures filename postfix:
+ * _n, _nrm, _nrml, _normal, _normals and _normalmap for normal map, _s, _spec,
+ * _specular and _specularmap for specular map, _l, _light, _lightmap, _occ
+ * and _occlusion for light map, _disp and _displacement for displacement map.
+ * The matching is case insensitive. Post fix is taken between the last
+ * underscore and the last period.
+ * Default behavior is to detect type from lower cased texture unit name by
+ * matching against: normalmap, specularmap, lightmap and displacementmap.
+ * For both cases if no match is found aiTextureType_DIFFUSE is used.
+ * <br>
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_OGRE_TEXTURETYPE_FROM_FILENAME \
+    "IMPORT_OGRE_TEXTURETYPE_FROM_FILENAME"
+
+ /** @brief Specifies whether the Android JNI asset extraction is supported.
+  *
+  * Turn on this option if you want to manage assets in native
+  * Android application without having to keep the internal directory and asset
+  * manager pointer.
+  */
+ #define AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT "AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the IFC loader skips over IfcSpace elements.
+ *
+ * IfcSpace elements (and their geometric representations) are used to
+ * represent, well, free space in a building storey.<br>
+ * Property type: Bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_IFC_SKIP_SPACE_REPRESENTATIONS "IMPORT_IFC_SKIP_SPACE_REPRESENTATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the IFC loader will use its own, custom triangulation
+ *   algorithm to triangulate wall and floor meshes.
+ *
+ * If this property is set to false, walls will be either triangulated by
+ * #aiProcess_Triangulate or will be passed through as huge polygons with
+ * faked holes (i.e. holes that are connected with the outer boundary using
+ * a dummy edge). It is highly recommended to set this property to true
+ * if you want triangulated data because #aiProcess_Triangulate is known to
+ * have problems with the kind of polygons that the IFC loader spits out for
+ * complicated meshes.
+ * Property type: Bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_IFC_CUSTOM_TRIANGULATION "IMPORT_IFC_CUSTOM_TRIANGULATION"
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the tessellation conic angle for IFC smoothing curves.
+ *
+ * This is used by the IFC importer to determine the tessellation parameter
+ * for smoothing curves.
+ * @note The default value is AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE and the
+ * accepted values are in range [5.0, 120.0].
+ * Property type: Float.
+ */
+#define AI_CONFIG_IMPORT_IFC_SMOOTHING_ANGLE "IMPORT_IFC_SMOOTHING_ANGLE"
+
+// default value for AI_CONFIG_IMPORT_IFC_SMOOTHING_ANGLE
+#if (!defined AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE)
+#   define AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE 10.0f
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief  Set the tessellation for IFC cylindrical shapes.
+ *
+ * This is used by the IFC importer to determine the tessellation parameter
+ * for cylindrical shapes, i.e. the number of segments used to approximate a circle.
+ * @note The default value is AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION and the
+ * accepted values are in range [3, 180].
+ * Property type: Integer.
+ */
+#define AI_CONFIG_IMPORT_IFC_CYLINDRICAL_TESSELLATION "IMPORT_IFC_CYLINDRICAL_TESSELLATION"
+
+// default value for AI_CONFIG_IMPORT_IFC_CYLINDRICAL_TESSELLATION
+#if (!defined AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION)
+#   define AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION 32
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the Collada loader will ignore the provided up direction.
+ *
+ * If this property is set to true, the up direction provided in the file header will
+ * be ignored and the file will be loaded as is.
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION "IMPORT_COLLADA_IGNORE_UP_DIRECTION"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the Collada loader should use Collada names as node names.
+ *
+ * If this property is set to true, the Collada names will be used as the
+ * node name. The default is to use the id tag (resp. sid tag, if no id tag is present)
+ * instead.
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_COLLADA_USE_COLLADA_NAMES "IMPORT_COLLADA_USE_COLLADA_NAMES"
+
+// ---------- All the Export defines ------------
+
+/** @brief Specifies the xfile use double for real values of float
+ *
+ * Property type: Bool. Default value: false.
+ */
+
+#define AI_CONFIG_EXPORT_XFILE_64BIT "EXPORT_XFILE_64BIT"
+
+/**
+ *
+ */
+#define AI_CONFIG_EXPORT_POINT_CLOUDS "EXPORT_POINT_CLOUDS"
+
+/**
+ *  @brief  Specifies a gobal key factor for scale, float value
+ */
+#define AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY "GLOBAL_SCALE_FACTOR"
+
+#if (!defined AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT)
+#   define AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT  1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+// ---------- All the Build/Compile-time defines ------------
+
+/** @brief Specifies if double precision is supported inside assimp
+ *
+ * Property type: Bool. Default value: undefined.
+ */
+
+#cmakedefine ASSIMP_DOUBLE_PRECISION 1
+
+#endif // !! AI_CONFIG_H_INC
diff --git a/thirdparty/assimp/include/assimp/defs.h b/thirdparty/assimp/include/assimp/defs.h
new file mode 100644
index 0000000000..4a177e3c3e
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/defs.h
@@ -0,0 +1,303 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file defs.h
+ *  @brief Assimp build configuration setup. See the notes in the comment
+ *  blocks to find out how to customize _your_ Assimp build.
+ */
+
+#pragma once
+#ifndef AI_DEFINES_H_INC
+#define AI_DEFINES_H_INC
+
+#include <assimp/config.h>
+
+//////////////////////////////////////////////////////////////////////////
+/* Define ASSIMP_BUILD_NO_XX_IMPORTER to disable a specific
+ * file format loader. The loader is be excluded from the
+ * build in this case. 'XX' stands for the most common file
+ * extension of the file format. E.g.:
+ * ASSIMP_BUILD_NO_X_IMPORTER disables the X loader.
+ *
+ * If you're unsure about that, take a look at the implementation of the
+ * import plugin you wish to disable. You'll find the right define in the
+ * first lines of the corresponding unit.
+ *
+ * Other (mixed) configuration switches are listed here:
+ *    ASSIMP_BUILD_NO_COMPRESSED_X
+ *      - Disable support for compressed X files (zip)
+ *    ASSIMP_BUILD_NO_COMPRESSED_BLEND
+ *      - Disable support for compressed Blender files (zip)
+ *    ASSIMP_BUILD_NO_COMPRESSED_IFC
+ *      - Disable support for IFCZIP files (unzip)
+ */
+//////////////////////////////////////////////////////////////////////////
+
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_X
+#   define ASSIMP_BUILD_NEED_Z_INFLATE
+#endif
+
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
+#   define ASSIMP_BUILD_NEED_Z_INFLATE
+#endif
+
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_IFC
+#   define ASSIMP_BUILD_NEED_Z_INFLATE
+#   define ASSIMP_BUILD_NEED_UNZIP
+#endif
+
+#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER
+#   define ASSIMP_BUILD_NEED_Z_INFLATE
+#   define ASSIMP_BUILD_NEED_UNZIP
+#endif
+
+//////////////////////////////////////////////////////////////////////////
+/* Define ASSIMP_BUILD_NO_XX_PROCESS to disable a specific
+ * post processing step. This is the current list of process names ('XX'):
+ * CALCTANGENTS
+ * JOINVERTICES
+ * TRIANGULATE
+ * DROPFACENORMALS
+ * GENFACENORMALS
+ * GENVERTEXNORMALS
+ * REMOVEVC
+ * SPLITLARGEMESHES
+ * PRETRANSFORMVERTICES
+ * LIMITBONEWEIGHTS
+ * VALIDATEDS
+ * IMPROVECACHELOCALITY
+ * FIXINFACINGNORMALS
+ * REMOVE_REDUNDANTMATERIALS
+ * OPTIMIZEGRAPH
+ * SORTBYPTYPE
+ * FINDINVALIDDATA
+ * TRANSFORMTEXCOORDS
+ * GENUVCOORDS
+ * ENTITYMESHBUILDER
+ * EMBEDTEXTURES
+ * MAKELEFTHANDED
+ * FLIPUVS
+ * FLIPWINDINGORDER
+ * OPTIMIZEMESHES
+ * OPTIMIZEANIMS
+ * OPTIMIZEGRAPH
+ * GENENTITYMESHES
+ * FIXTEXTUREPATHS */
+//////////////////////////////////////////////////////////////////////////
+
+#ifdef _MSC_VER
+#   undef ASSIMP_API
+
+    //////////////////////////////////////////////////////////////////////////
+    /* Define 'ASSIMP_BUILD_DLL_EXPORT' to build a DLL of the library */
+    //////////////////////////////////////////////////////////////////////////
+#   ifdef ASSIMP_BUILD_DLL_EXPORT
+#       define ASSIMP_API __declspec(dllexport)
+#       define ASSIMP_API_WINONLY __declspec(dllexport)
+#       pragma warning (disable : 4251)
+
+    //////////////////////////////////////////////////////////////////////////
+    /* Define 'ASSIMP_DLL' before including Assimp to link to ASSIMP in
+     * an external DLL under Windows. Default is static linkage. */
+    //////////////////////////////////////////////////////////////////////////
+#   elif (defined ASSIMP_DLL)
+#       define ASSIMP_API __declspec(dllimport)
+#       define ASSIMP_API_WINONLY __declspec(dllimport)
+#   else
+#       define ASSIMP_API
+#       define ASSIMP_API_WINONLY
+#   endif
+
+    /* Force the compiler to inline a function, if possible
+     */
+#   define AI_FORCE_INLINE __forceinline
+
+    /* Tells the compiler that a function never returns. Used in code analysis
+     * to skip dead paths (e.g. after an assertion evaluated to false). */
+#   define AI_WONT_RETURN __declspec(noreturn)
+
+#elif defined(SWIG)
+
+    /* Do nothing, the relevant defines are all in AssimpSwigPort.i */
+
+#else
+
+#   define AI_WONT_RETURN
+
+#   define ASSIMP_API __attribute__ ((visibility("default")))
+#   define ASSIMP_API_WINONLY
+#   define AI_FORCE_INLINE inline
+#endif // (defined _MSC_VER)
+
+#ifdef __GNUC__
+#   define AI_WONT_RETURN_SUFFIX  __attribute__((noreturn))
+#else
+#   define AI_WONT_RETURN_SUFFIX
+#endif // (defined __clang__)
+
+#ifdef __cplusplus
+    /* No explicit 'struct' and 'enum' tags for C++, this keeps showing up
+     * in doxydocs.
+     */
+#   define C_STRUCT
+#   define C_ENUM
+#else
+    //////////////////////////////////////////////////////////////////////////
+    /* To build the documentation, make sure ASSIMP_DOXYGEN_BUILD
+     * is defined by Doxygen's preprocessor. The corresponding
+     * entries in the DOXYFILE are: */
+    //////////////////////////////////////////////////////////////////////////
+#if 0
+    ENABLE_PREPROCESSING   = YES
+    MACRO_EXPANSION        = YES
+    EXPAND_ONLY_PREDEF     = YES
+    SEARCH_INCLUDES        = YES
+    INCLUDE_PATH           =
+    INCLUDE_FILE_PATTERNS  =
+    PREDEFINED             = ASSIMP_DOXYGEN_BUILD=1
+    EXPAND_AS_DEFINED      = C_STRUCT C_ENUM
+    SKIP_FUNCTION_MACROS   = YES
+#endif
+    //////////////////////////////////////////////////////////////////////////
+    /* Doxygen gets confused if we use c-struct typedefs to avoid
+     * the explicit 'struct' notation. This trick here has the same
+     * effect as the TYPEDEF_HIDES_STRUCT option, but we don't need
+     * to typedef all structs/enums. */
+     //////////////////////////////////////////////////////////////////////////
+#   if (defined ASSIMP_DOXYGEN_BUILD)
+#       define C_STRUCT
+#       define C_ENUM
+#   else
+#       define C_STRUCT struct
+#       define C_ENUM   enum
+#   endif
+#endif
+
+#if (defined(__BORLANDC__) || defined (__BCPLUSPLUS__))
+#error Currently, Borland is unsupported. Feel free to port Assimp.
+
+// "W8059 Packgröße der Struktur geändert"
+
+#endif
+
+
+    //////////////////////////////////////////////////////////////////////////
+    /* Define ASSIMP_BUILD_SINGLETHREADED to compile assimp
+     * without threading support. The library doesn't utilize
+     * threads then and is itself not threadsafe. */
+    //////////////////////////////////////////////////////////////////////////
+#ifndef ASSIMP_BUILD_SINGLETHREADED
+#   define ASSIMP_BUILD_SINGLETHREADED
+#endif
+
+#if defined(_DEBUG) || ! defined(NDEBUG)
+#   define ASSIMP_BUILD_DEBUG
+#endif
+
+    //////////////////////////////////////////////////////////////////////////
+    /* Define ASSIMP_DOUBLE_PRECISION to compile assimp
+     * with double precision support (64-bit). */
+    //////////////////////////////////////////////////////////////////////////
+
+#ifdef ASSIMP_DOUBLE_PRECISION
+    typedef double ai_real;
+    typedef signed long long int ai_int;
+    typedef unsigned long long int ai_uint;
+#else // ASSIMP_DOUBLE_PRECISION
+    typedef float ai_real;
+    typedef signed int ai_int;
+    typedef unsigned int ai_uint;
+#endif // ASSIMP_DOUBLE_PRECISION
+
+    //////////////////////////////////////////////////////////////////////////
+    /* Useful constants */
+    //////////////////////////////////////////////////////////////////////////
+
+/* This is PI. Hi PI. */
+#define AI_MATH_PI          (3.141592653589793238462643383279 )
+#define AI_MATH_TWO_PI      (AI_MATH_PI * 2.0)
+#define AI_MATH_HALF_PI     (AI_MATH_PI * 0.5)
+
+/* And this is to avoid endless casts to float */
+#define AI_MATH_PI_F        (3.1415926538f)
+#define AI_MATH_TWO_PI_F    (AI_MATH_PI_F * 2.0f)
+#define AI_MATH_HALF_PI_F   (AI_MATH_PI_F * 0.5f)
+
+/* Tiny macro to convert from radians to degrees and back */
+#define AI_DEG_TO_RAD(x) ((x)*(ai_real)0.0174532925)
+#define AI_RAD_TO_DEG(x) ((x)*(ai_real)57.2957795)
+
+/* Support for big-endian builds */
+#if defined(__BYTE_ORDER__)
+#   if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#       if !defined(__BIG_ENDIAN__)
+#           define __BIG_ENDIAN__
+#       endif
+#   else /* little endian */
+#       if defined (__BIG_ENDIAN__)
+#           undef __BIG_ENDIAN__
+#       endif
+#   endif
+#endif
+#if defined(__BIG_ENDIAN__)
+#   define AI_BUILD_BIG_ENDIAN
+#endif
+
+
+/* To avoid running out of memory
+ * This can be adjusted for specific use cases
+ * It's NOT a total limit, just a limit for individual allocations
+ */
+#define AI_MAX_ALLOC(type) ((256U * 1024 * 1024) / sizeof(type))
+
+#ifndef _MSC_VER
+#  define AI_NO_EXCEPT noexcept
+#else
+#  if (_MSC_VER == 1915 )
+#    define AI_NO_EXCEPT noexcept
+#  else
+#    define AI_NO_EXCEPT
+#  endif
+#endif
+
+#endif // !! AI_DEFINES_H_INC
diff --git a/thirdparty/assimp/include/assimp/fast_atof.h b/thirdparty/assimp/include/assimp/fast_atof.h
new file mode 100644
index 0000000000..62ea969e97
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/fast_atof.h
@@ -0,0 +1,373 @@
+#pragma once
+
+// Copyright (C) 2002-2007 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine" and the "irrXML" project.
+// For conditions of distribution and use, see copyright notice in irrlicht.h and irrXML.h
+
+// ------------------------------------------------------------------------------------
+// Original description: (Schrompf)
+// Adapted to the ASSIMP library because the builtin atof indeed takes AGES to parse a
+// float inside a large string. Before parsing, it does a strlen on the given point.
+// Changes:
+//  22nd October 08 (Aramis_acg): Added temporary cast to double, added strtoul10_64
+//     to ensure long numbers are handled correctly
+// ------------------------------------------------------------------------------------
+
+
+#ifndef FAST_A_TO_F_H_INCLUDED
+#define FAST_A_TO_F_H_INCLUDED
+
+#include <cmath>
+#include <limits>
+#include <stdint.h>
+#include <stdexcept>
+#include <assimp/defs.h>
+
+#include "StringComparison.h"
+#include <assimp/DefaultLogger.hpp>
+
+#ifdef _MSC_VER
+#  include <stdint.h>
+#else
+#  include <assimp/Compiler/pstdint.h>
+#endif
+
+namespace Assimp {
+
+const double fast_atof_table[16] =  {  // we write [16] here instead of [] to work around a swig bug
+    0.0,
+    0.1,
+    0.01,
+    0.001,
+    0.0001,
+    0.00001,
+    0.000001,
+    0.0000001,
+    0.00000001,
+    0.000000001,
+    0.0000000001,
+    0.00000000001,
+    0.000000000001,
+    0.0000000000001,
+    0.00000000000001,
+    0.000000000000001
+};
+
+
+// ------------------------------------------------------------------------------------
+// Convert a string in decimal format to a number
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul10( const char* in, const char** out=0) {
+    unsigned int value = 0;
+
+    for ( ;; ) {
+        if ( *in < '0' || *in > '9' ) {
+            break;
+        }
+
+        value = ( value * 10 ) + ( *in - '0' );
+        ++in;
+    }
+    if ( out ) {
+        *out = in;
+    }
+    return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert a string in octal format to a number
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul8( const char* in, const char** out=0) {
+    unsigned int value( 0 );
+    for ( ;; ) {
+        if ( *in < '0' || *in > '7' ) {
+            break;
+        }
+
+        value = ( value << 3 ) + ( *in - '0' );
+        ++in;
+    }
+    if ( out ) {
+        *out = in;
+    }
+    return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert a string in hex format to a number
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul16( const char* in, const char** out=0) {
+    unsigned int value( 0 );
+    for ( ;; ) {
+        if ( *in >= '0' && *in <= '9' ) {
+            value = ( value << 4u ) + ( *in - '0' );
+        } else if (*in >= 'A' && *in <= 'F') {
+            value = ( value << 4u ) + ( *in - 'A' ) + 10;
+        } else if (*in >= 'a' && *in <= 'f') {
+            value = ( value << 4u ) + ( *in - 'a' ) + 10;
+        } else {
+            break;
+        }
+        ++in;
+    }
+    if ( out ) {
+        *out = in;
+    }
+    return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert just one hex digit
+// Return value is UINT_MAX if the input character is not a hex digit.
+// ------------------------------------------------------------------------------------
+inline
+unsigned int HexDigitToDecimal(char in) {
+    unsigned int out( UINT_MAX );
+    if ( in >= '0' && in <= '9' ) {
+        out = in - '0';
+    } else if ( in >= 'a' && in <= 'f' ) {
+        out = 10u + in - 'a';
+    } else if ( in >= 'A' && in <= 'F' ) {
+        out = 10u + in - 'A';
+    }
+
+    // return value is UINT_MAX if the input is not a hex digit
+    return out;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert a hex-encoded octet (2 characters, i.e. df or 1a).
+// ------------------------------------------------------------------------------------
+inline
+uint8_t HexOctetToDecimal(const char* in) {
+    return ((uint8_t)HexDigitToDecimal(in[0])<<4)+(uint8_t)HexDigitToDecimal(in[1]);
+}
+
+// ------------------------------------------------------------------------------------
+// signed variant of strtoul10
+// ------------------------------------------------------------------------------------
+inline
+int strtol10( const char* in, const char** out=0) {
+    bool inv = (*in=='-');
+    if ( inv || *in == '+' ) {
+        ++in;
+    }
+
+    int value = strtoul10(in,out);
+    if (inv) {
+        value = -value;
+    }
+    return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Parse a C++-like integer literal - hex and oct prefixes.
+// 0xNNNN - hex
+// 0NNN   - oct
+// NNN    - dec
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul_cppstyle( const char* in, const char** out=0) {
+    if ('0' == in[0]) {
+        return 'x' == in[1] ? strtoul16(in+2,out) : strtoul8(in+1,out);
+    }
+    return strtoul10(in, out);
+}
+
+// ------------------------------------------------------------------------------------
+// Special version of the function, providing higher accuracy and safety
+// It is mainly used by fast_atof to prevent ugly and unwanted integer overflows.
+// ------------------------------------------------------------------------------------
+inline
+uint64_t strtoul10_64( const char* in, const char** out=0, unsigned int* max_inout=0) {
+    unsigned int cur = 0;
+    uint64_t value = 0;
+
+    if ( *in < '0' || *in > '9' ) {
+        throw std::invalid_argument( std::string( "The string \"" ) + in + "\" cannot be converted into a value." );
+    }
+
+    for ( ;; ) {
+        if ( *in < '0' || *in > '9' ) {
+            break;
+        }
+
+        const uint64_t new_value = ( value * (uint64_t) 10 ) + ( (uint64_t) ( *in - '0' ) );
+
+        // numeric overflow, we rely on you
+        if ( new_value < value ) {
+            ASSIMP_LOG_WARN_F( "Converting the string \"", in, "\" into a value resulted in overflow." );
+            return 0;
+        }
+
+        value = new_value;
+
+        ++in;
+        ++cur;
+
+        if (max_inout && *max_inout == cur) {
+            if (out) { /* skip to end */
+                while ( *in >= '0' && *in <= '9' ) {
+                    ++in;
+                }
+                *out = in;
+            }
+
+            return value;
+        }
+    }
+    if ( out ) {
+        *out = in;
+    }
+
+    if ( max_inout ) {
+        *max_inout = cur;
+    }
+
+    return value;
+}
+
+// ------------------------------------------------------------------------------------
+// signed variant of strtoul10_64
+// ------------------------------------------------------------------------------------
+inline
+int64_t strtol10_64(const char* in, const char** out = 0, unsigned int* max_inout = 0) {
+    bool inv = (*in == '-');
+    if ( inv || *in == '+' ) {
+        ++in;
+    }
+
+    int64_t value = strtoul10_64(in, out, max_inout);
+    if (inv) {
+        value = -value;
+    }
+    return value;
+}
+
+// Number of relevant decimals for floating-point parsing.
+#define AI_FAST_ATOF_RELAVANT_DECIMALS 15
+
+// ------------------------------------------------------------------------------------
+//! Provides a fast function for converting a string into a float,
+//! about 6 times faster than atof in win32.
+// If you find any bugs, please send them to me, niko (at) irrlicht3d.org.
+// ------------------------------------------------------------------------------------
+template<typename Real>
+inline
+const char* fast_atoreal_move(const char* c, Real& out, bool check_comma = true) {
+    Real f = 0;
+
+    bool inv = (*c == '-');
+    if (inv || *c == '+') {
+        ++c;
+    }
+
+    if ((c[0] == 'N' || c[0] == 'n') && ASSIMP_strincmp(c, "nan", 3) == 0) {
+        out = std::numeric_limits<Real>::quiet_NaN();
+        c += 3;
+        return c;
+    }
+
+    if ((c[0] == 'I' || c[0] == 'i') && ASSIMP_strincmp(c, "inf", 3) == 0) {
+        out = std::numeric_limits<Real>::infinity();
+        if (inv) {
+            out = -out;
+        }
+        c += 3;
+        if ((c[0] == 'I' || c[0] == 'i') && ASSIMP_strincmp(c, "inity", 5) == 0) {
+            c += 5;
+        }
+        return c;
+     }
+
+    if (!(c[0] >= '0' && c[0] <= '9') &&
+            !((c[0] == '.' || (check_comma && c[0] == ',')) && c[1] >= '0' && c[1] <= '9')) {
+        throw std::invalid_argument("Cannot parse string "
+                                    "as real number: does not start with digit "
+                                    "or decimal point followed by digit.");
+    }
+
+    if (*c != '.' && (! check_comma || c[0] != ',')) {
+        f = static_cast<Real>( strtoul10_64 ( c, &c) );
+    }
+
+    if ((*c == '.' || (check_comma && c[0] == ',')) && c[1] >= '0' && c[1] <= '9') {
+        ++c;
+
+        // NOTE: The original implementation is highly inaccurate here. The precision of a single
+        // IEEE 754 float is not high enough, everything behind the 6th digit tends to be more
+        // inaccurate than it would need to be. Casting to double seems to solve the problem.
+        // strtol_64 is used to prevent integer overflow.
+
+        // Another fix: this tends to become 0 for long numbers if we don't limit the maximum
+        // number of digits to be read. AI_FAST_ATOF_RELAVANT_DECIMALS can be a value between
+        // 1 and 15.
+        unsigned int diff = AI_FAST_ATOF_RELAVANT_DECIMALS;
+        double pl = static_cast<double>( strtoul10_64 ( c, &c, &diff ));
+
+        pl *= fast_atof_table[diff];
+        f += static_cast<Real>( pl );
+    }
+    // For backwards compatibility: eat trailing dots, but not trailing commas.
+    else if (*c == '.') {
+        ++c;
+    }
+
+    // A major 'E' must be allowed. Necessary for proper reading of some DXF files.
+    // Thanks to Zhao Lei to point out that this if() must be outside the if (*c == '.' ..)
+    if (*c == 'e' || *c == 'E') {
+        ++c;
+        const bool einv = (*c=='-');
+        if (einv || *c=='+') {
+            ++c;
+        }
+
+        // The reason float constants are used here is that we've seen cases where compilers
+        // would perform such casts on compile-time constants at runtime, which would be
+        // bad considering how frequently fast_atoreal_move<float> is called in Assimp.
+        Real exp = static_cast<Real>( strtoul10_64(c, &c) );
+        if (einv) {
+            exp = -exp;
+        }
+        f *= std::pow(static_cast<Real>(10.0), exp);
+    }
+
+    if (inv) {
+        f = -f;
+    }
+    out = f;
+    return c;
+}
+
+// ------------------------------------------------------------------------------------
+// The same but more human.
+inline
+ai_real fast_atof(const char* c) {
+    ai_real ret(0.0);
+    fast_atoreal_move<ai_real>(c, ret);
+
+    return ret;
+}
+
+inline
+ai_real fast_atof( const char* c, const char** cout) {
+    ai_real ret(0.0);
+    *cout = fast_atoreal_move<ai_real>(c, ret);
+
+    return ret;
+}
+
+inline
+ai_real fast_atof( const char** inout) {
+    ai_real ret(0.0);
+    *inout = fast_atoreal_move<ai_real>(*inout, ret);
+
+    return ret;
+}
+
+} //! namespace Assimp
+
+#endif // FAST_A_TO_F_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/importerdesc.h b/thirdparty/assimp/include/assimp/importerdesc.h
new file mode 100644
index 0000000000..36e387f011
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/importerdesc.h
@@ -0,0 +1,146 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file importerdesc.h
+ *  @brief #aiImporterFlags, aiImporterDesc implementation.
+ */
+#pragma once
+#ifndef AI_IMPORTER_DESC_H_INC
+#define AI_IMPORTER_DESC_H_INC
+
+
+/** Mixed set of flags for #aiImporterDesc, indicating some features
+  *  common to many importers*/
+enum aiImporterFlags
+{
+    /** Indicates that there is a textual encoding of the
+     *  file format; and that it is supported.*/
+    aiImporterFlags_SupportTextFlavour = 0x1,
+
+    /** Indicates that there is a binary encoding of the
+     *  file format; and that it is supported.*/
+    aiImporterFlags_SupportBinaryFlavour = 0x2,
+
+    /** Indicates that there is a compressed encoding of the
+     *  file format; and that it is supported.*/
+    aiImporterFlags_SupportCompressedFlavour = 0x4,
+
+    /** Indicates that the importer reads only a very particular
+      * subset of the file format. This happens commonly for
+      * declarative or procedural formats which cannot easily
+      * be mapped to #aiScene */
+    aiImporterFlags_LimitedSupport = 0x8,
+
+    /** Indicates that the importer is highly experimental and
+      * should be used with care. This only happens for trunk
+      * (i.e. SVN) versions, experimental code is not included
+      * in releases. */
+    aiImporterFlags_Experimental = 0x10
+};
+
+
+/** Meta information about a particular importer. Importers need to fill
+ *  this structure, but they can freely decide how talkative they are.
+ *  A common use case for loader meta info is a user interface
+ *  in which the user can choose between various import/export file
+ *  formats. Building such an UI by hand means a lot of maintenance
+ *  as importers/exporters are added to Assimp, so it might be useful
+ *  to have a common mechanism to query some rough importer
+ *  characteristics. */
+struct aiImporterDesc
+{
+    /** Full name of the importer (i.e. Blender3D importer)*/
+    const char* mName;
+
+    /** Original author (left blank if unknown or whole assimp team) */
+    const char* mAuthor;
+
+    /** Current maintainer, left blank if the author maintains */
+    const char* mMaintainer;
+
+    /** Implementation comments, i.e. unimplemented features*/
+    const char* mComments;
+
+    /** These flags indicate some characteristics common to many
+        importers. */
+    unsigned int mFlags;
+
+    /** Minimum format version that can be loaded im major.minor format,
+        both are set to 0 if there is either no version scheme
+        or if the loader doesn't care. */
+    unsigned int mMinMajor;
+    unsigned int mMinMinor;
+
+    /** Maximum format version that can be loaded im major.minor format,
+        both are set to 0 if there is either no version scheme
+        or if the loader doesn't care. Loaders that expect to be
+        forward-compatible to potential future format versions should
+        indicate  zero, otherwise they should specify the current
+        maximum version.*/
+    unsigned int mMaxMajor;
+    unsigned int mMaxMinor;
+
+    /** List of file extensions this importer can handle.
+        List entries are separated by space characters.
+        All entries are lower case without a leading dot (i.e.
+        "xml dae" would be a valid value. Note that multiple
+        importers may respond to the same file extension -
+        assimp calls all importers in the order in which they
+        are registered and each importer gets the opportunity
+        to load the file until one importer "claims" the file. Apart
+        from file extension checks, importers typically use
+        other methods to quickly reject files (i.e. magic
+        words) so this does not mean that common or generic
+        file extensions such as XML would be tediously slow. */
+    const char* mFileExtensions;
+};
+
+/** \brief  Returns the Importer description for a given extension.
+
+Will return a NULL-pointer if no assigned importer desc. was found for the given extension
+    \param  extension   [in] The extension to look for
+    \return A pointer showing to the ImporterDesc, \see aiImporterDesc.
+*/
+ASSIMP_API const C_STRUCT aiImporterDesc* aiGetImporterDesc( const char *extension );
+
+#endif // AI_IMPORTER_DESC_H_INC
diff --git a/thirdparty/assimp/include/assimp/irrXMLWrapper.h b/thirdparty/assimp/include/assimp/irrXMLWrapper.h
new file mode 100644
index 0000000000..ec8ee7c76e
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/irrXMLWrapper.h
@@ -0,0 +1,144 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef INCLUDED_AI_IRRXML_WRAPPER
+#define INCLUDED_AI_IRRXML_WRAPPER
+
+// some long includes ....
+#include <irrXML.h>
+#include "IOStream.hpp"
+#include "BaseImporter.h"
+#include <vector>
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------------
+/** @brief Utility class to make IrrXML work together with our custom IO system
+ *  See the IrrXML docs for more details.
+ *
+ *  Construct IrrXML-Reader in BaseImporter::InternReadFile():
+ *  @code
+ * // open the file
+ * std::unique_ptr<IOStream> file( pIOHandler->Open( pFile));
+ * if( file.get() == NULL) {
+ *    throw DeadlyImportError( "Failed to open file " + pFile + ".");
+ * }
+ *
+ * // generate a XML reader for it
+ * std::unique_ptr<CIrrXML_IOStreamReader> mIOWrapper( new CIrrXML_IOStreamReader( file.get()));
+ * mReader = irr::io::createIrrXMLReader( mIOWrapper.get());
+ * if( !mReader) {
+ *    ThrowException( "xxxx: Unable to open file.");
+ * }
+ * @endcode
+ **/
+class CIrrXML_IOStreamReader : public irr::io::IFileReadCallBack {
+public:
+
+    // ----------------------------------------------------------------------------------
+    //! Construction from an existing IOStream
+    explicit CIrrXML_IOStreamReader(IOStream* _stream)
+        : stream (_stream)
+        , t (0)
+    {
+
+        // Map the buffer into memory and convert it to UTF8. IrrXML provides its
+        // own conversion, which is merely a cast from uintNN_t to uint8_t. Thus,
+        // it is not suitable for our purposes and we have to do it BEFORE IrrXML
+        // gets the buffer. Sadly, this forces us to map the whole file into
+        // memory.
+
+        data.resize(stream->FileSize());
+        stream->Read(&data[0],data.size(),1);
+
+        // Remove null characters from the input sequence otherwise the parsing will utterly fail
+        unsigned int size = 0;
+        unsigned int size_max = static_cast<unsigned int>(data.size());
+        for(unsigned int i = 0; i < size_max; i++) {
+            if(data[i] != '\0') {
+                data[size++] = data[i];
+            }
+        }
+        data.resize(size);
+
+        BaseImporter::ConvertToUTF8(data);
+    }
+
+    // ----------------------------------------------------------------------------------
+    //! Virtual destructor
+    virtual ~CIrrXML_IOStreamReader() {}
+
+    // ----------------------------------------------------------------------------------
+    //!   Reads an amount of bytes from the file.
+    /**  @param buffer:       Pointer to output buffer.
+     *   @param sizeToRead:   Amount of bytes to read
+     *   @return              Returns how much bytes were read.  */
+    virtual int read(void* buffer, int sizeToRead)  {
+        if(sizeToRead<0) {
+            return 0;
+        }
+        if(t+sizeToRead>data.size()) {
+            sizeToRead = static_cast<int>(data.size()-t);
+        }
+
+        memcpy(buffer,&data.front()+t,sizeToRead);
+
+        t += sizeToRead;
+        return sizeToRead;
+    }
+
+    // ----------------------------------------------------------------------------------
+    //! Returns size of file in bytes
+    virtual int getSize()   {
+        return (int)data.size();
+    }
+
+private:
+    IOStream* stream;
+    std::vector<char> data;
+    size_t t;
+
+}; // ! class CIrrXML_IOStreamReader
+
+} // ! Assimp
+
+#endif // !! INCLUDED_AI_IRRXML_WRAPPER
diff --git a/thirdparty/assimp/include/assimp/light.h b/thirdparty/assimp/include/assimp/light.h
new file mode 100644
index 0000000000..1667cfb8c1
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/light.h
@@ -0,0 +1,259 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file light.h
+ *  @brief Defines the aiLight data structure
+ */
+
+#pragma once
+#ifndef AI_LIGHT_H_INC
+#define AI_LIGHT_H_INC
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** Enumerates all supported types of light sources.
+ */
+enum aiLightSourceType
+{
+    aiLightSource_UNDEFINED     = 0x0,
+
+    //! A directional light source has a well-defined direction
+    //! but is infinitely far away. That's quite a good
+    //! approximation for sun light.
+    aiLightSource_DIRECTIONAL   = 0x1,
+
+    //! A point light source has a well-defined position
+    //! in space but no direction - it emits light in all
+    //! directions. A normal bulb is a point light.
+    aiLightSource_POINT         = 0x2,
+
+    //! A spot light source emits light in a specific
+    //! angle. It has a position and a direction it is pointing to.
+    //! A good example for a spot light is a light spot in
+    //! sport arenas.
+    aiLightSource_SPOT          = 0x3,
+
+    //! The generic light level of the world, including the bounces
+    //! of all other light sources.
+    //! Typically, there's at most one ambient light in a scene.
+    //! This light type doesn't have a valid position, direction, or
+    //! other properties, just a color.
+    aiLightSource_AMBIENT       = 0x4,
+
+    //! An area light is a rectangle with predefined size that uniformly
+    //! emits light from one of its sides. The position is center of the
+    //! rectangle and direction is its normal vector.
+    aiLightSource_AREA          = 0x5,
+
+    /** This value is not used. It is just there to force the
+     *  compiler to map this enum to a 32 Bit integer.
+     */
+#ifndef SWIG
+    _aiLightSource_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Helper structure to describe a light source.
+ *
+ *  Assimp supports multiple sorts of light sources, including
+ *  directional, point and spot lights. All of them are defined with just
+ *  a single structure and distinguished by their parameters.
+ *  Note - some file formats (such as 3DS, ASE) export a "target point" -
+ *  the point a spot light is looking at (it can even be animated). Assimp
+ *  writes the target point as a subnode of a spotlights's main node,
+ *  called "<spotName>.Target". However, this is just additional information
+ *  then, the transformation tracks of the main node make the
+ *  spot light already point in the right direction.
+*/
+struct aiLight
+{
+    /** The name of the light source.
+     *
+     *  There must be a node in the scenegraph with the same name.
+     *  This node specifies the position of the light in the scene
+     *  hierarchy and can be animated.
+     */
+    C_STRUCT aiString mName;
+
+    /** The type of the light source.
+     *
+     * aiLightSource_UNDEFINED is not a valid value for this member.
+     */
+    C_ENUM aiLightSourceType mType;
+
+    /** Position of the light source in space. Relative to the
+     *  transformation of the node corresponding to the light.
+     *
+     *  The position is undefined for directional lights.
+     */
+    C_STRUCT aiVector3D mPosition;
+
+    /** Direction of the light source in space. Relative to the
+     *  transformation of the node corresponding to the light.
+     *
+     *  The direction is undefined for point lights. The vector
+     *  may be normalized, but it needn't.
+     */
+    C_STRUCT aiVector3D mDirection;
+
+    /** Up direction of the light source in space. Relative to the
+     *  transformation of the node corresponding to the light.
+     *
+     *  The direction is undefined for point lights. The vector
+     *  may be normalized, but it needn't.
+     */
+    C_STRUCT aiVector3D mUp;
+
+    /** Constant light attenuation factor.
+     *
+     *  The intensity of the light source at a given distance 'd' from
+     *  the light's position is
+     *  @code
+     *  Atten = 1/( att0 + att1 * d + att2 * d*d)
+     *  @endcode
+     *  This member corresponds to the att0 variable in the equation.
+     *  Naturally undefined for directional lights.
+     */
+    float mAttenuationConstant;
+
+    /** Linear light attenuation factor.
+     *
+     *  The intensity of the light source at a given distance 'd' from
+     *  the light's position is
+     *  @code
+     *  Atten = 1/( att0 + att1 * d + att2 * d*d)
+     *  @endcode
+     *  This member corresponds to the att1 variable in the equation.
+     *  Naturally undefined for directional lights.
+     */
+    float mAttenuationLinear;
+
+    /** Quadratic light attenuation factor.
+     *
+     *  The intensity of the light source at a given distance 'd' from
+     *  the light's position is
+     *  @code
+     *  Atten = 1/( att0 + att1 * d + att2 * d*d)
+     *  @endcode
+     *  This member corresponds to the att2 variable in the equation.
+     *  Naturally undefined for directional lights.
+     */
+    float mAttenuationQuadratic;
+
+    /** Diffuse color of the light source
+     *
+     *  The diffuse light color is multiplied with the diffuse
+     *  material color to obtain the final color that contributes
+     *  to the diffuse shading term.
+     */
+    C_STRUCT aiColor3D mColorDiffuse;
+
+    /** Specular color of the light source
+     *
+     *  The specular light color is multiplied with the specular
+     *  material color to obtain the final color that contributes
+     *  to the specular shading term.
+     */
+    C_STRUCT aiColor3D mColorSpecular;
+
+    /** Ambient color of the light source
+     *
+     *  The ambient light color is multiplied with the ambient
+     *  material color to obtain the final color that contributes
+     *  to the ambient shading term. Most renderers will ignore
+     *  this value it, is just a remaining of the fixed-function pipeline
+     *  that is still supported by quite many file formats.
+     */
+    C_STRUCT aiColor3D mColorAmbient;
+
+    /** Inner angle of a spot light's light cone.
+     *
+     *  The spot light has maximum influence on objects inside this
+     *  angle. The angle is given in radians. It is 2PI for point
+     *  lights and undefined for directional lights.
+     */
+    float mAngleInnerCone;
+
+    /** Outer angle of a spot light's light cone.
+     *
+     *  The spot light does not affect objects outside this angle.
+     *  The angle is given in radians. It is 2PI for point lights and
+     *  undefined for directional lights. The outer angle must be
+     *  greater than or equal to the inner angle.
+     *  It is assumed that the application uses a smooth
+     *  interpolation between the inner and the outer cone of the
+     *  spot light.
+     */
+    float mAngleOuterCone;
+
+    /** Size of area light source. */
+    C_STRUCT aiVector2D mSize;
+
+#ifdef __cplusplus
+
+    aiLight() AI_NO_EXCEPT
+        :   mType                 (aiLightSource_UNDEFINED)
+        ,   mAttenuationConstant  (0.f)
+        ,   mAttenuationLinear    (1.f)
+        ,   mAttenuationQuadratic (0.f)
+        ,   mAngleInnerCone       ((float)AI_MATH_TWO_PI)
+        ,   mAngleOuterCone       ((float)AI_MATH_TWO_PI)
+        ,   mSize                 (0.f, 0.f)
+    {
+    }
+
+#endif
+};
+
+#ifdef __cplusplus
+}
+#endif 
+
+
+#endif // !! AI_LIGHT_H_INC
diff --git a/thirdparty/assimp/include/assimp/material.h b/thirdparty/assimp/include/assimp/material.h
new file mode 100644
index 0000000000..4b5a1293dd
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/material.h
@@ -0,0 +1,1580 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file material.h
+ *  @brief Defines the material system of the library
+ */
+#pragma once
+#ifndef AI_MATERIAL_H_INC
+#define AI_MATERIAL_H_INC
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Name for default materials (2nd is used if meshes have UV coords)
+#define AI_DEFAULT_MATERIAL_NAME          "DefaultMaterial"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how the Nth texture of a specific type is combined with
+ *  the result of all previous layers.
+ *
+ *  Example (left: key, right: value): <br>
+ *  @code
+ *  DiffColor0     - gray
+ *  DiffTextureOp0 - aiTextureOpMultiply
+ *  DiffTexture0   - tex1.png
+ *  DiffTextureOp0 - aiTextureOpAdd
+ *  DiffTexture1   - tex2.png
+ *  @endcode
+ *  Written as equation, the final diffuse term for a specific pixel would be:
+ *  @code
+ *  diffFinal = DiffColor0 * sampleTex(DiffTexture0,UV0) +
+ *     sampleTex(DiffTexture1,UV0) * diffContrib;
+ *  @endcode
+ *  where 'diffContrib' is the intensity of the incoming light for that pixel.
+ */
+enum aiTextureOp
+{
+    /** T = T1 * T2 */
+    aiTextureOp_Multiply = 0x0,
+
+    /** T = T1 + T2 */
+    aiTextureOp_Add = 0x1,
+
+    /** T = T1 - T2 */
+    aiTextureOp_Subtract = 0x2,
+
+    /** T = T1 / T2 */
+    aiTextureOp_Divide = 0x3,
+
+    /** T = (T1 + T2) - (T1 * T2) */
+    aiTextureOp_SmoothAdd = 0x4,
+
+    /** T = T1 + (T2-0.5) */
+    aiTextureOp_SignedAdd = 0x5,
+
+
+#ifndef SWIG
+    _aiTextureOp_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how UV coordinates outside the [0...1] range are handled.
+ *
+ *  Commonly referred to as 'wrapping mode'.
+ */
+enum aiTextureMapMode
+{
+    /** A texture coordinate u|v is translated to u%1|v%1
+     */
+    aiTextureMapMode_Wrap = 0x0,
+
+    /** Texture coordinates outside [0...1]
+     *  are clamped to the nearest valid value.
+     */
+    aiTextureMapMode_Clamp = 0x1,
+
+    /** If the texture coordinates for a pixel are outside [0...1]
+     *  the texture is not applied to that pixel
+     */
+    aiTextureMapMode_Decal = 0x3,
+
+    /** A texture coordinate u|v becomes u%1|v%1 if (u-(u%1))%2 is zero and
+     *  1-(u%1)|1-(v%1) otherwise
+     */
+    aiTextureMapMode_Mirror = 0x2,
+
+#ifndef SWIG
+    _aiTextureMapMode_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how the mapping coords for a texture are generated.
+ *
+ *  Real-time applications typically require full UV coordinates, so the use of
+ *  the aiProcess_GenUVCoords step is highly recommended. It generates proper
+ *  UV channels for non-UV mapped objects, as long as an accurate description
+ *  how the mapping should look like (e.g spherical) is given.
+ *  See the #AI_MATKEY_MAPPING property for more details.
+ */
+enum aiTextureMapping
+{
+    /** The mapping coordinates are taken from an UV channel.
+     *
+     *  The #AI_MATKEY_UVWSRC key specifies from which UV channel
+     *  the texture coordinates are to be taken from (remember,
+     *  meshes can have more than one UV channel).
+    */
+    aiTextureMapping_UV = 0x0,
+
+     /** Spherical mapping */
+    aiTextureMapping_SPHERE = 0x1,
+
+     /** Cylindrical mapping */
+    aiTextureMapping_CYLINDER = 0x2,
+
+     /** Cubic mapping */
+    aiTextureMapping_BOX = 0x3,
+
+     /** Planar mapping */
+    aiTextureMapping_PLANE = 0x4,
+
+     /** Undefined mapping. Have fun. */
+    aiTextureMapping_OTHER = 0x5,
+
+
+#ifndef SWIG
+    _aiTextureMapping_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the purpose of a texture
+ *
+ *  This is a very difficult topic. Different 3D packages support different
+ *  kinds of textures. For very common texture types, such as bumpmaps, the
+ *  rendering results depend on implementation details in the rendering
+ *  pipelines of these applications. Assimp loads all texture references from
+ *  the model file and tries to determine which of the predefined texture
+ *  types below is the best choice to match the original use of the texture
+ *  as closely as possible.<br>
+ *
+ *  In content pipelines you'll usually define how textures have to be handled,
+ *  and the artists working on models have to conform to this specification,
+ *  regardless which 3D tool they're using.
+ */
+enum aiTextureType
+{
+    /** Dummy value.
+     *
+     *  No texture, but the value to be used as 'texture semantic'
+     *  (#aiMaterialProperty::mSemantic) for all material properties
+     *  *not* related to textures.
+     */
+    aiTextureType_NONE = 0x0,
+
+    /** The texture is combined with the result of the diffuse
+     *  lighting equation.
+     */
+    aiTextureType_DIFFUSE = 0x1,
+
+    /** The texture is combined with the result of the specular
+     *  lighting equation.
+     */
+    aiTextureType_SPECULAR = 0x2,
+
+    /** The texture is combined with the result of the ambient
+     *  lighting equation.
+     */
+    aiTextureType_AMBIENT = 0x3,
+
+    /** The texture is added to the result of the lighting
+     *  calculation. It isn't influenced by incoming light.
+     */
+    aiTextureType_EMISSIVE = 0x4,
+
+    /** The texture is a height map.
+     *
+     *  By convention, higher gray-scale values stand for
+     *  higher elevations from the base height.
+     */
+    aiTextureType_HEIGHT = 0x5,
+
+    /** The texture is a (tangent space) normal-map.
+     *
+     *  Again, there are several conventions for tangent-space
+     *  normal maps. Assimp does (intentionally) not
+     *  distinguish here.
+     */
+    aiTextureType_NORMALS = 0x6,
+
+    /** The texture defines the glossiness of the material.
+     *
+     *  The glossiness is in fact the exponent of the specular
+     *  (phong) lighting equation. Usually there is a conversion
+     *  function defined to map the linear color values in the
+     *  texture to a suitable exponent. Have fun.
+    */
+    aiTextureType_SHININESS = 0x7,
+
+    /** The texture defines per-pixel opacity.
+     *
+     *  Usually 'white' means opaque and 'black' means
+     *  'transparency'. Or quite the opposite. Have fun.
+    */
+    aiTextureType_OPACITY = 0x8,
+
+    /** Displacement texture
+     *
+     *  The exact purpose and format is application-dependent.
+     *  Higher color values stand for higher vertex displacements.
+    */
+    aiTextureType_DISPLACEMENT = 0x9,
+
+    /** Lightmap texture (aka Ambient Occlusion)
+     *
+     *  Both 'Lightmaps' and dedicated 'ambient occlusion maps' are
+     *  covered by this material property. The texture contains a
+     *  scaling value for the final color value of a pixel. Its
+     *  intensity is not affected by incoming light.
+    */
+    aiTextureType_LIGHTMAP = 0xA,
+
+    /** Reflection texture
+     *
+     * Contains the color of a perfect mirror reflection.
+     * Rarely used, almost never for real-time applications.
+    */
+    aiTextureType_REFLECTION = 0xB,
+
+    /** Unknown texture
+     *
+     *  A texture reference that does not match any of the definitions
+     *  above is considered to be 'unknown'. It is still imported,
+     *  but is excluded from any further post-processing.
+    */
+    aiTextureType_UNKNOWN = 0xC,
+
+
+#ifndef SWIG
+    _aiTextureType_Force32Bit = INT_MAX
+#endif
+};
+
+#define AI_TEXTURE_TYPE_MAX  aiTextureType_UNKNOWN
+
+// ---------------------------------------------------------------------------
+/** @brief Defines all shading models supported by the library
+ *
+ *  The list of shading modes has been taken from Blender.
+ *  See Blender documentation for more information. The API does
+ *  not distinguish between "specular" and "diffuse" shaders (thus the
+ *  specular term for diffuse shading models like Oren-Nayar remains
+ *  undefined). <br>
+ *  Again, this value is just a hint. Assimp tries to select the shader whose
+ *  most common implementation matches the original rendering results of the
+ *  3D modeller which wrote a particular model as closely as possible.
+ */
+enum aiShadingMode
+{
+    /** Flat shading. Shading is done on per-face base,
+     *  diffuse only. Also known as 'faceted shading'.
+     */
+    aiShadingMode_Flat = 0x1,
+
+    /** Simple Gouraud shading.
+     */
+    aiShadingMode_Gouraud = 0x2,
+
+    /** Phong-Shading -
+     */
+    aiShadingMode_Phong = 0x3,
+
+    /** Phong-Blinn-Shading
+     */
+    aiShadingMode_Blinn = 0x4,
+
+    /** Toon-Shading per pixel
+     *
+     *  Also known as 'comic' shader.
+     */
+    aiShadingMode_Toon = 0x5,
+
+    /** OrenNayar-Shading per pixel
+     *
+     *  Extension to standard Lambertian shading, taking the
+     *  roughness of the material into account
+     */
+    aiShadingMode_OrenNayar = 0x6,
+
+    /** Minnaert-Shading per pixel
+     *
+     *  Extension to standard Lambertian shading, taking the
+     *  "darkness" of the material into account
+     */
+    aiShadingMode_Minnaert = 0x7,
+
+    /** CookTorrance-Shading per pixel
+     *
+     *  Special shader for metallic surfaces.
+     */
+    aiShadingMode_CookTorrance = 0x8,
+
+    /** No shading at all. Constant light influence of 1.0.
+    */
+    aiShadingMode_NoShading = 0x9,
+
+     /** Fresnel shading
+     */
+    aiShadingMode_Fresnel = 0xa,
+
+
+#ifndef SWIG
+    _aiShadingMode_Force32Bit = INT_MAX
+#endif
+};
+
+
+// ---------------------------------------------------------------------------
+/** @brief Defines some mixed flags for a particular texture.
+ *
+ *  Usually you'll instruct your cg artists how textures have to look like ...
+ *  and how they will be processed in your application. However, if you use
+ *  Assimp for completely generic loading purposes you might also need to
+ *  process these flags in order to display as many 'unknown' 3D models as
+ *  possible correctly.
+ *
+ *  This corresponds to the #AI_MATKEY_TEXFLAGS property.
+*/
+enum aiTextureFlags
+{
+    /** The texture's color values have to be inverted (component-wise 1-n)
+     */
+    aiTextureFlags_Invert = 0x1,
+
+    /** Explicit request to the application to process the alpha channel
+     *  of the texture.
+     *
+     *  Mutually exclusive with #aiTextureFlags_IgnoreAlpha. These
+     *  flags are set if the library can say for sure that the alpha
+     *  channel is used/is not used. If the model format does not
+     *  define this, it is left to the application to decide whether
+     *  the texture alpha channel - if any - is evaluated or not.
+     */
+    aiTextureFlags_UseAlpha = 0x2,
+
+    /** Explicit request to the application to ignore the alpha channel
+     *  of the texture.
+     *
+     *  Mutually exclusive with #aiTextureFlags_UseAlpha.
+     */
+    aiTextureFlags_IgnoreAlpha = 0x4,
+
+#ifndef SWIG
+      _aiTextureFlags_Force32Bit = INT_MAX
+#endif
+};
+
+
+// ---------------------------------------------------------------------------
+/** @brief Defines alpha-blend flags.
+ *
+ *  If you're familiar with OpenGL or D3D, these flags aren't new to you.
+ *  They define *how* the final color value of a pixel is computed, basing
+ *  on the previous color at that pixel and the new color value from the
+ *  material.
+ *  The blend formula is:
+ *  @code
+ *    SourceColor * SourceBlend + DestColor * DestBlend
+ *  @endcode
+ *  where DestColor is the previous color in the framebuffer at this
+ *  position and SourceColor is the material color before the transparency
+ *  calculation.<br>
+ *  This corresponds to the #AI_MATKEY_BLEND_FUNC property.
+*/
+enum aiBlendMode
+{
+    /**
+     *  Formula:
+     *  @code
+     *  SourceColor*SourceAlpha + DestColor*(1-SourceAlpha)
+     *  @endcode
+     */
+    aiBlendMode_Default = 0x0,
+
+    /** Additive blending
+     *
+     *  Formula:
+     *  @code
+     *  SourceColor*1 + DestColor*1
+     *  @endcode
+     */
+    aiBlendMode_Additive = 0x1,
+
+    // we don't need more for the moment, but we might need them
+    // in future versions ...
+
+#ifndef SWIG
+    _aiBlendMode_Force32Bit = INT_MAX
+#endif
+};
+
+
+#include "./Compiler/pushpack1.h"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how an UV channel is transformed.
+ *
+ *  This is just a helper structure for the #AI_MATKEY_UVTRANSFORM key.
+ *  See its documentation for more details.
+ *
+ *  Typically you'll want to build a matrix of this information. However,
+ *  we keep separate scaling/translation/rotation values to make it
+ *  easier to process and optimize UV transformations internally.
+ */
+struct aiUVTransform
+{
+    /** Translation on the u and v axes.
+     *
+     *  The default value is (0|0).
+     */
+    C_STRUCT aiVector2D mTranslation;
+
+    /** Scaling on the u and v axes.
+     *
+     *  The default value is (1|1).
+     */
+    C_STRUCT aiVector2D mScaling;
+
+    /** Rotation - in counter-clockwise direction.
+     *
+     *  The rotation angle is specified in radians. The
+     *  rotation center is 0.5f|0.5f. The default value
+     *  0.f.
+     */
+    ai_real mRotation;
+
+
+#ifdef __cplusplus
+    aiUVTransform() AI_NO_EXCEPT
+        :   mTranslation (0.0,0.0)
+        ,   mScaling    (1.0,1.0)
+        ,   mRotation   (0.0)
+    {
+        // nothing to be done here ...
+    }
+#endif
+
+};
+
+#include "./Compiler/poppack1.h"
+
+//! @cond AI_DOX_INCLUDE_INTERNAL
+// ---------------------------------------------------------------------------
+/** @brief A very primitive RTTI system for the contents of material
+ *  properties.
+ */
+enum aiPropertyTypeInfo
+{
+    /** Array of single-precision (32 Bit) floats
+     *
+     *  It is possible to use aiGetMaterialInteger[Array]() (or the C++-API
+     *  aiMaterial::Get()) to query properties stored in floating-point format.
+     *  The material system performs the type conversion automatically.
+    */
+    aiPTI_Float   = 0x1,
+
+    /** Array of double-precision (64 Bit) floats
+     *
+     *  It is possible to use aiGetMaterialInteger[Array]() (or the C++-API
+     *  aiMaterial::Get()) to query properties stored in floating-point format.
+     *  The material system performs the type conversion automatically.
+    */
+    aiPTI_Double   = 0x2,
+
+    /** The material property is an aiString.
+     *
+     *  Arrays of strings aren't possible, aiGetMaterialString() (or the
+     *  C++-API aiMaterial::Get()) *must* be used to query a string property.
+    */
+    aiPTI_String  = 0x3,
+
+    /** Array of (32 Bit) integers
+     *
+     *  It is possible to use aiGetMaterialFloat[Array]() (or the C++-API
+     *  aiMaterial::Get()) to query properties stored in integer format.
+     *  The material system performs the type conversion automatically.
+    */
+    aiPTI_Integer = 0x4,
+
+
+    /** Simple binary buffer, content undefined. Not convertible to anything.
+    */
+    aiPTI_Buffer  = 0x5,
+
+
+     /** This value is not used. It is just there to force the
+     *  compiler to map this enum to a 32 Bit integer.
+     */
+#ifndef SWIG
+     _aiPTI_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Data structure for a single material property
+ *
+ *  As an user, you'll probably never need to deal with this data structure.
+ *  Just use the provided aiGetMaterialXXX() or aiMaterial::Get() family
+ *  of functions to query material properties easily. Processing them
+ *  manually is faster, but it is not the recommended way. It isn't worth
+ *  the effort. <br>
+ *  Material property names follow a simple scheme:
+ *  @code
+ *    $<name>
+ *    ?<name>
+ *       A public property, there must be corresponding AI_MATKEY_XXX define
+ *       2nd: Public, but ignored by the #aiProcess_RemoveRedundantMaterials
+ *       post-processing step.
+ *    ~<name>
+ *       A temporary property for internal use.
+ *  @endcode
+ *  @see aiMaterial
+ */
+struct aiMaterialProperty
+{
+    /** Specifies the name of the property (key)
+     *  Keys are generally case insensitive.
+     */
+    C_STRUCT aiString mKey;
+
+    /** Textures: Specifies their exact usage semantic.
+     * For non-texture properties, this member is always 0
+     * (or, better-said, #aiTextureType_NONE).
+     */
+    unsigned int mSemantic;
+
+    /** Textures: Specifies the index of the texture.
+     *  For non-texture properties, this member is always 0.
+     */
+    unsigned int mIndex;
+
+    /** Size of the buffer mData is pointing to, in bytes.
+     *  This value may not be 0.
+     */
+    unsigned int mDataLength;
+
+    /** Type information for the property.
+     *
+     * Defines the data layout inside the data buffer. This is used
+     * by the library internally to perform debug checks and to
+     * utilize proper type conversions.
+     * (It's probably a hacky solution, but it works.)
+     */
+    C_ENUM aiPropertyTypeInfo mType;
+
+    /** Binary buffer to hold the property's value.
+     * The size of the buffer is always mDataLength.
+     */
+    char* mData;
+
+#ifdef __cplusplus
+
+    aiMaterialProperty() AI_NO_EXCEPT
+    : mSemantic( 0 )
+    , mIndex( 0 )
+    , mDataLength( 0 )
+    , mType( aiPTI_Float )
+    , mData(nullptr) {
+        // empty
+    }
+
+    ~aiMaterialProperty()   {
+        delete[] mData;
+        mData = nullptr;
+    }
+
+#endif
+};
+//! @endcond
+
+#ifdef __cplusplus
+} // We need to leave the "C" block here to allow template member functions
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Data structure for a material
+*
+*  Material data is stored using a key-value structure. A single key-value
+*  pair is called a 'material property'. C++ users should use the provided
+*  member functions of aiMaterial to process material properties, C users
+*  have to stick with the aiMaterialGetXXX family of unbound functions.
+*  The library defines a set of standard keys (AI_MATKEY_XXX).
+*/
+#ifdef __cplusplus
+struct ASSIMP_API aiMaterial
+#else
+struct aiMaterial
+#endif
+{
+
+#ifdef __cplusplus
+
+public:
+
+    aiMaterial();
+    ~aiMaterial();
+
+    // -------------------------------------------------------------------
+    /**
+      * @brief  Returns the name of the material.
+      * @return The name of the material.
+      */
+    // -------------------------------------------------------------------
+    aiString GetName();
+
+    // -------------------------------------------------------------------
+    /** @brief Retrieve an array of Type values with a specific key
+     *  from the material
+     *
+     * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+     * @param type .. set by AI_MATKEY_XXX
+     * @param idx .. set by AI_MATKEY_XXX
+     * @param pOut Pointer to a buffer to receive the result.
+     * @param pMax Specifies the size of the given buffer, in Type's.
+     * Receives the number of values (not bytes!) read.
+     * NULL is a valid value for this parameter.
+     */
+    template <typename Type>
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, Type* pOut, unsigned int* pMax) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, int* pOut, unsigned int* pMax) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, ai_real* pOut, unsigned int* pMax) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Retrieve a Type value with a specific key
+     *  from the material
+     *
+     * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+    * @param type Specifies the type of the texture to be retrieved (
+    *    e.g. diffuse, specular, height map ...)
+    * @param idx Index of the texture to be retrieved.
+     * @param pOut Reference to receive the output value
+     */
+    template <typename Type>
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx,Type& pOut) const;
+
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, int& pOut) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, ai_real& pOut) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, aiString& pOut) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, aiColor3D& pOut) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, aiColor4D& pOut) const;
+
+    aiReturn Get(const char* pKey,unsigned int type,
+        unsigned int idx, aiUVTransform& pOut) const;
+
+    // -------------------------------------------------------------------
+    /** Get the number of textures for a particular texture type.
+     *  @param type Texture type to check for
+     *  @return Number of textures for this type.
+     *  @note A texture can be easily queried using #GetTexture() */
+    unsigned int GetTextureCount(aiTextureType type) const;
+
+    // -------------------------------------------------------------------
+    /** Helper function to get all parameters pertaining to a
+     *  particular texture slot from a material.
+     *
+     *  This function is provided just for convenience, you could also
+     *  read the single material properties manually.
+     *  @param type Specifies the type of the texture to be retrieved (
+     *    e.g. diffuse, specular, height map ...)
+     *  @param index Index of the texture to be retrieved. The function fails
+     *    if there is no texture of that type with this index.
+     *    #GetTextureCount() can be used to determine the number of textures
+     *    per texture type.
+     *  @param path Receives the path to the texture.
+     *    If the texture is embedded, receives a '*' followed by the id of
+     *    the texture (for the textures stored in the corresponding scene) which
+     *    can be converted to an int using a function like atoi.
+     *    NULL is a valid value.
+     *  @param mapping The texture mapping.
+     *    NULL is allowed as value.
+     *  @param uvindex Receives the UV index of the texture.
+     *    NULL is a valid value.
+     *  @param blend Receives the blend factor for the texture
+     *    NULL is a valid value.
+     *  @param op Receives the texture operation to be performed between
+     *    this texture and the previous texture. NULL is allowed as value.
+     *  @param mapmode Receives the mapping modes to be used for the texture.
+     *    The parameter may be NULL but if it is a valid pointer it MUST
+     *    point to an array of 3 aiTextureMapMode's (one for each
+     *    axis: UVW order (=XYZ)).
+     */
+    // -------------------------------------------------------------------
+    aiReturn GetTexture(aiTextureType type,
+        unsigned int  index,
+        C_STRUCT aiString* path,
+        aiTextureMapping* mapping   = NULL,
+        unsigned int* uvindex       = NULL,
+        ai_real* blend              = NULL,
+        aiTextureOp* op             = NULL,
+        aiTextureMapMode* mapmode   = NULL) const;
+
+
+    // Setters
+
+
+    // ------------------------------------------------------------------------------
+    /** @brief Add a property with a given key and type info to the material
+     *  structure
+     *
+     *  @param pInput Pointer to input data
+     *  @param pSizeInBytes Size of input data
+     *  @param pKey Key/Usage of the property (AI_MATKEY_XXX)
+     *  @param type Set by the AI_MATKEY_XXX macro
+     *  @param index Set by the AI_MATKEY_XXX macro
+     *  @param pType Type information hint */
+    aiReturn AddBinaryProperty (const void* pInput,
+        unsigned int pSizeInBytes,
+        const char* pKey,
+        unsigned int type ,
+        unsigned int index ,
+        aiPropertyTypeInfo pType);
+
+    // ------------------------------------------------------------------------------
+    /** @brief Add a string property with a given key and type info to the
+     *  material structure
+     *
+     *  @param pInput Input string
+     *  @param pKey Key/Usage of the property (AI_MATKEY_XXX)
+     *  @param type Set by the AI_MATKEY_XXX macro
+     *  @param index Set by the AI_MATKEY_XXX macro */
+    aiReturn AddProperty (const aiString* pInput,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    // ------------------------------------------------------------------------------
+    /** @brief Add a property with a given key to the material structure
+     *  @param pInput Pointer to the input data
+     *  @param pNumValues Number of values in the array
+     *  @param pKey Key/Usage of the property (AI_MATKEY_XXX)
+     *  @param type Set by the AI_MATKEY_XXX macro
+     *  @param index Set by the AI_MATKEY_XXX macro  */
+    template<class TYPE>
+    aiReturn AddProperty (const TYPE* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const aiVector3D* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const aiColor3D* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const aiColor4D* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const int* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const float* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const double* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    aiReturn AddProperty (const aiUVTransform* pInput,
+        unsigned int pNumValues,
+        const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    // ------------------------------------------------------------------------------
+    /** @brief Remove a given key from the list.
+     *
+     *  The function fails if the key isn't found
+     *  @param pKey Key to be deleted
+     *  @param type Set by the AI_MATKEY_XXX macro
+     *  @param index Set by the AI_MATKEY_XXX macro  */
+    aiReturn RemoveProperty (const char* pKey,
+        unsigned int type  = 0,
+        unsigned int index = 0);
+
+    // ------------------------------------------------------------------------------
+    /** @brief Removes all properties from the material.
+     *
+     *  The data array remains allocated so adding new properties is quite fast.  */
+    void Clear();
+
+    // ------------------------------------------------------------------------------
+    /** Copy the property list of a material
+     *  @param pcDest Destination material
+     *  @param pcSrc Source material
+     */
+    static void CopyPropertyList(aiMaterial* pcDest,
+        const aiMaterial* pcSrc);
+
+
+#endif
+
+    /** List of all material properties loaded. */
+    C_STRUCT aiMaterialProperty** mProperties;
+
+    /** Number of properties in the data base */
+    unsigned int mNumProperties;
+
+     /** Storage allocated */
+    unsigned int mNumAllocated;
+};
+
+// Go back to extern "C" again
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_NAME "?mat.name",0,0
+#define AI_MATKEY_TWOSIDED "$mat.twosided",0,0
+#define AI_MATKEY_SHADING_MODEL "$mat.shadingm",0,0
+#define AI_MATKEY_ENABLE_WIREFRAME "$mat.wireframe",0,0
+#define AI_MATKEY_BLEND_FUNC "$mat.blend",0,0
+#define AI_MATKEY_OPACITY "$mat.opacity",0,0
+#define AI_MATKEY_TRANSPARENCYFACTOR "$mat.transparencyfactor",0,0
+#define AI_MATKEY_BUMPSCALING "$mat.bumpscaling",0,0
+#define AI_MATKEY_SHININESS "$mat.shininess",0,0
+#define AI_MATKEY_REFLECTIVITY "$mat.reflectivity",0,0
+#define AI_MATKEY_SHININESS_STRENGTH "$mat.shinpercent",0,0
+#define AI_MATKEY_REFRACTI "$mat.refracti",0,0
+#define AI_MATKEY_COLOR_DIFFUSE "$clr.diffuse",0,0
+#define AI_MATKEY_COLOR_AMBIENT "$clr.ambient",0,0
+#define AI_MATKEY_COLOR_SPECULAR "$clr.specular",0,0
+#define AI_MATKEY_COLOR_EMISSIVE "$clr.emissive",0,0
+#define AI_MATKEY_COLOR_TRANSPARENT "$clr.transparent",0,0
+#define AI_MATKEY_COLOR_REFLECTIVE "$clr.reflective",0,0
+#define AI_MATKEY_GLOBAL_BACKGROUND_IMAGE "?bg.global",0,0
+#define AI_MATKEY_GLOBAL_SHADERLANG "?sh.lang",0,0
+#define AI_MATKEY_SHADER_VERTEX "?sh.vs",0,0
+#define AI_MATKEY_SHADER_FRAGMENT "?sh.fs",0,0
+#define AI_MATKEY_SHADER_GEO "?sh.gs",0,0
+#define AI_MATKEY_SHADER_TESSELATION "?sh.ts",0,0
+#define AI_MATKEY_SHADER_PRIMITIVE "?sh.ps",0,0
+#define AI_MATKEY_SHADER_COMPUTE "?sh.cs",0,0
+
+// ---------------------------------------------------------------------------
+// Pure key names for all texture-related properties
+//! @cond MATS_DOC_FULL
+#define _AI_MATKEY_TEXTURE_BASE         "$tex.file"
+#define _AI_MATKEY_UVWSRC_BASE          "$tex.uvwsrc"
+#define _AI_MATKEY_TEXOP_BASE           "$tex.op"
+#define _AI_MATKEY_MAPPING_BASE         "$tex.mapping"
+#define _AI_MATKEY_TEXBLEND_BASE        "$tex.blend"
+#define _AI_MATKEY_MAPPINGMODE_U_BASE   "$tex.mapmodeu"
+#define _AI_MATKEY_MAPPINGMODE_V_BASE   "$tex.mapmodev"
+#define _AI_MATKEY_TEXMAP_AXIS_BASE     "$tex.mapaxis"
+#define _AI_MATKEY_UVTRANSFORM_BASE     "$tex.uvtrafo"
+#define _AI_MATKEY_TEXFLAGS_BASE        "$tex.flags"
+//! @endcond
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXTURE(type, N) _AI_MATKEY_TEXTURE_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXTURE_DIFFUSE(N)    \
+    AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_TEXTURE_SPECULAR(N)   \
+    AI_MATKEY_TEXTURE(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_TEXTURE_AMBIENT(N)    \
+    AI_MATKEY_TEXTURE(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_TEXTURE_EMISSIVE(N)   \
+    AI_MATKEY_TEXTURE(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_TEXTURE_NORMALS(N)    \
+    AI_MATKEY_TEXTURE(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_TEXTURE_HEIGHT(N) \
+    AI_MATKEY_TEXTURE(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_TEXTURE_SHININESS(N)  \
+    AI_MATKEY_TEXTURE(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_TEXTURE_OPACITY(N)    \
+    AI_MATKEY_TEXTURE(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_TEXTURE_DISPLACEMENT(N)   \
+    AI_MATKEY_TEXTURE(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_TEXTURE_LIGHTMAP(N)   \
+    AI_MATKEY_TEXTURE(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_TEXTURE_REFLECTION(N) \
+    AI_MATKEY_TEXTURE(aiTextureType_REFLECTION,N)
+
+//! @endcond
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_UVWSRC(type, N) _AI_MATKEY_UVWSRC_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_UVWSRC_DIFFUSE(N) \
+    AI_MATKEY_UVWSRC(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_UVWSRC_SPECULAR(N)    \
+    AI_MATKEY_UVWSRC(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_UVWSRC_AMBIENT(N) \
+    AI_MATKEY_UVWSRC(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_UVWSRC_EMISSIVE(N)    \
+    AI_MATKEY_UVWSRC(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_UVWSRC_NORMALS(N) \
+    AI_MATKEY_UVWSRC(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_UVWSRC_HEIGHT(N)  \
+    AI_MATKEY_UVWSRC(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_UVWSRC_SHININESS(N)   \
+    AI_MATKEY_UVWSRC(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_UVWSRC_OPACITY(N) \
+    AI_MATKEY_UVWSRC(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_UVWSRC_DISPLACEMENT(N)    \
+    AI_MATKEY_UVWSRC(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_UVWSRC_LIGHTMAP(N)    \
+    AI_MATKEY_UVWSRC(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_UVWSRC_REFLECTION(N)  \
+    AI_MATKEY_UVWSRC(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXOP(type, N) _AI_MATKEY_TEXOP_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXOP_DIFFUSE(N)  \
+    AI_MATKEY_TEXOP(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_TEXOP_SPECULAR(N) \
+    AI_MATKEY_TEXOP(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_TEXOP_AMBIENT(N)  \
+    AI_MATKEY_TEXOP(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_TEXOP_EMISSIVE(N) \
+    AI_MATKEY_TEXOP(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_TEXOP_NORMALS(N)  \
+    AI_MATKEY_TEXOP(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_TEXOP_HEIGHT(N)   \
+    AI_MATKEY_TEXOP(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_TEXOP_SHININESS(N)    \
+    AI_MATKEY_TEXOP(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_TEXOP_OPACITY(N)  \
+    AI_MATKEY_TEXOP(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_TEXOP_DISPLACEMENT(N) \
+    AI_MATKEY_TEXOP(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_TEXOP_LIGHTMAP(N) \
+    AI_MATKEY_TEXOP(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_TEXOP_REFLECTION(N)   \
+    AI_MATKEY_TEXOP(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_MAPPING(type, N) _AI_MATKEY_MAPPING_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_MAPPING_DIFFUSE(N)    \
+    AI_MATKEY_MAPPING(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_MAPPING_SPECULAR(N)   \
+    AI_MATKEY_MAPPING(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_MAPPING_AMBIENT(N)    \
+    AI_MATKEY_MAPPING(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_MAPPING_EMISSIVE(N)   \
+    AI_MATKEY_MAPPING(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_MAPPING_NORMALS(N)    \
+    AI_MATKEY_MAPPING(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_MAPPING_HEIGHT(N) \
+    AI_MATKEY_MAPPING(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_MAPPING_SHININESS(N)  \
+    AI_MATKEY_MAPPING(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_MAPPING_OPACITY(N)    \
+    AI_MATKEY_MAPPING(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_MAPPING_DISPLACEMENT(N)   \
+    AI_MATKEY_MAPPING(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_MAPPING_LIGHTMAP(N)   \
+    AI_MATKEY_MAPPING(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_MAPPING_REFLECTION(N) \
+    AI_MATKEY_MAPPING(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXBLEND(type, N) _AI_MATKEY_TEXBLEND_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXBLEND_DIFFUSE(N)   \
+    AI_MATKEY_TEXBLEND(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_TEXBLEND_SPECULAR(N)  \
+    AI_MATKEY_TEXBLEND(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_TEXBLEND_AMBIENT(N)   \
+    AI_MATKEY_TEXBLEND(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_TEXBLEND_EMISSIVE(N)  \
+    AI_MATKEY_TEXBLEND(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_TEXBLEND_NORMALS(N)   \
+    AI_MATKEY_TEXBLEND(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_TEXBLEND_HEIGHT(N)    \
+    AI_MATKEY_TEXBLEND(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_TEXBLEND_SHININESS(N) \
+    AI_MATKEY_TEXBLEND(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_TEXBLEND_OPACITY(N)   \
+    AI_MATKEY_TEXBLEND(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_TEXBLEND_DISPLACEMENT(N)  \
+    AI_MATKEY_TEXBLEND(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_TEXBLEND_LIGHTMAP(N)  \
+    AI_MATKEY_TEXBLEND(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_TEXBLEND_REFLECTION(N)    \
+    AI_MATKEY_TEXBLEND(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_MAPPINGMODE_U(type, N) _AI_MATKEY_MAPPINGMODE_U_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_MAPPINGMODE_U_DIFFUSE(N)  \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_SPECULAR(N) \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_AMBIENT(N)  \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_EMISSIVE(N) \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_NORMALS(N)  \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_HEIGHT(N)   \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_SHININESS(N)    \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_OPACITY(N)  \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_DISPLACEMENT(N) \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_LIGHTMAP(N) \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_MAPPINGMODE_U_REFLECTION(N)   \
+    AI_MATKEY_MAPPINGMODE_U(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_MAPPINGMODE_V(type, N) _AI_MATKEY_MAPPINGMODE_V_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_MAPPINGMODE_V_DIFFUSE(N)  \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_SPECULAR(N) \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_AMBIENT(N)  \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_EMISSIVE(N) \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_NORMALS(N)  \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_HEIGHT(N)   \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_SHININESS(N)    \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_OPACITY(N)  \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_DISPLACEMENT(N) \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_LIGHTMAP(N) \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_MAPPINGMODE_V_REFLECTION(N)   \
+    AI_MATKEY_MAPPINGMODE_V(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXMAP_AXIS(type, N) _AI_MATKEY_TEXMAP_AXIS_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXMAP_AXIS_DIFFUSE(N)    \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_SPECULAR(N)   \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_AMBIENT(N)    \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_EMISSIVE(N)   \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_NORMALS(N)    \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_HEIGHT(N) \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_SHININESS(N)  \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_OPACITY(N)    \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_DISPLACEMENT(N)   \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_LIGHTMAP(N)   \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_TEXMAP_AXIS_REFLECTION(N) \
+    AI_MATKEY_TEXMAP_AXIS(aiTextureType_REFLECTION,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_UVTRANSFORM(type, N) _AI_MATKEY_UVTRANSFORM_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_UVTRANSFORM_DIFFUSE(N)    \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_UVTRANSFORM_SPECULAR(N)   \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_UVTRANSFORM_AMBIENT(N)    \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_UVTRANSFORM_EMISSIVE(N)   \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_UVTRANSFORM_NORMALS(N)    \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_UVTRANSFORM_HEIGHT(N) \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_UVTRANSFORM_SHININESS(N)  \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_UVTRANSFORM_OPACITY(N)    \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_UVTRANSFORM_DISPLACEMENT(N)   \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_UVTRANSFORM_LIGHTMAP(N)   \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_UVTRANSFORM_REFLECTION(N) \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_REFLECTION,N)
+
+#define AI_MATKEY_UVTRANSFORM_UNKNOWN(N)    \
+    AI_MATKEY_UVTRANSFORM(aiTextureType_UNKNOWN,N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXFLAGS(type, N) _AI_MATKEY_TEXFLAGS_BASE,type,N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXFLAGS_DIFFUSE(N)   \
+    AI_MATKEY_TEXFLAGS(aiTextureType_DIFFUSE,N)
+
+#define AI_MATKEY_TEXFLAGS_SPECULAR(N)  \
+    AI_MATKEY_TEXFLAGS(aiTextureType_SPECULAR,N)
+
+#define AI_MATKEY_TEXFLAGS_AMBIENT(N)   \
+    AI_MATKEY_TEXFLAGS(aiTextureType_AMBIENT,N)
+
+#define AI_MATKEY_TEXFLAGS_EMISSIVE(N)  \
+    AI_MATKEY_TEXFLAGS(aiTextureType_EMISSIVE,N)
+
+#define AI_MATKEY_TEXFLAGS_NORMALS(N)   \
+    AI_MATKEY_TEXFLAGS(aiTextureType_NORMALS,N)
+
+#define AI_MATKEY_TEXFLAGS_HEIGHT(N)    \
+    AI_MATKEY_TEXFLAGS(aiTextureType_HEIGHT,N)
+
+#define AI_MATKEY_TEXFLAGS_SHININESS(N) \
+    AI_MATKEY_TEXFLAGS(aiTextureType_SHININESS,N)
+
+#define AI_MATKEY_TEXFLAGS_OPACITY(N)   \
+    AI_MATKEY_TEXFLAGS(aiTextureType_OPACITY,N)
+
+#define AI_MATKEY_TEXFLAGS_DISPLACEMENT(N)  \
+    AI_MATKEY_TEXFLAGS(aiTextureType_DISPLACEMENT,N)
+
+#define AI_MATKEY_TEXFLAGS_LIGHTMAP(N)  \
+    AI_MATKEY_TEXFLAGS(aiTextureType_LIGHTMAP,N)
+
+#define AI_MATKEY_TEXFLAGS_REFLECTION(N)    \
+    AI_MATKEY_TEXFLAGS(aiTextureType_REFLECTION,N)
+
+#define AI_MATKEY_TEXFLAGS_UNKNOWN(N)   \
+    AI_MATKEY_TEXFLAGS(aiTextureType_UNKNOWN,N)
+
+//! @endcond
+//!
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a material property with a specific key from the material
+ *
+ * @param pMat Pointer to the input material. May not be NULL
+ * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+ * @param type Specifies the type of the texture to be retrieved (
+ *    e.g. diffuse, specular, height map ...)
+ * @param index Index of the texture to be retrieved.
+ * @param pPropOut Pointer to receive a pointer to a valid aiMaterialProperty
+ *        structure or NULL if the key has not been found. */
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialProperty(
+    const C_STRUCT aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int  index,
+    const C_STRUCT aiMaterialProperty** pPropOut);
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve an array of float values with a specific key
+ *  from the material
+ *
+ * Pass one of the AI_MATKEY_XXX constants for the last three parameters (the
+ * example reads the #AI_MATKEY_UVTRANSFORM property of the first diffuse texture)
+ * @code
+ * aiUVTransform trafo;
+ * unsigned int max = sizeof(aiUVTransform);
+ * if (AI_SUCCESS != aiGetMaterialFloatArray(mat, AI_MATKEY_UVTRANSFORM(aiTextureType_DIFFUSE,0),
+ *    (float*)&trafo, &max) || sizeof(aiUVTransform) != max)
+ * {
+ *   // error handling
+ * }
+ * @endcode
+ *
+ * @param pMat Pointer to the input material. May not be NULL
+ * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+ * @param pOut Pointer to a buffer to receive the result.
+ * @param pMax Specifies the size of the given buffer, in float's.
+ *        Receives the number of values (not bytes!) read.
+ * @param type (see the code sample above)
+ * @param index (see the code sample above)
+ * @return Specifies whether the key has been found. If not, the output
+ *   arrays remains unmodified and pMax is set to 0.*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialFloatArray(
+    const C_STRUCT aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    ai_real* pOut,
+    unsigned int* pMax);
+
+
+#ifdef __cplusplus
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a single float property with a specific key from the material.
+*
+* Pass one of the AI_MATKEY_XXX constants for the last three parameters (the
+* example reads the #AI_MATKEY_SHININESS_STRENGTH property of the first diffuse texture)
+* @code
+* float specStrength = 1.f; // default value, remains unmodified if we fail.
+* aiGetMaterialFloat(mat, AI_MATKEY_SHININESS_STRENGTH,
+*    (float*)&specStrength);
+* @endcode
+*
+* @param pMat Pointer to the input material. May not be NULL
+* @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+* @param pOut Receives the output float.
+* @param type (see the code sample above)
+* @param index (see the code sample above)
+* @return Specifies whether the key has been found. If not, the output
+*   float remains unmodified.*/
+// ---------------------------------------------------------------------------
+inline aiReturn aiGetMaterialFloat(const aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    ai_real* pOut)
+{
+    return aiGetMaterialFloatArray(pMat,pKey,type,index,pOut,(unsigned int*)0x0);
+}
+
+#else
+
+// Use our friend, the C preprocessor
+#define aiGetMaterialFloat (pMat, type, index, pKey, pOut) \
+    aiGetMaterialFloatArray(pMat, type, index, pKey, pOut, NULL)
+
+#endif //!__cplusplus
+
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve an array of integer values with a specific key
+ *  from a material
+ *
+ * See the sample for aiGetMaterialFloatArray for more information.*/
+ASSIMP_API C_ENUM aiReturn aiGetMaterialIntegerArray(const C_STRUCT aiMaterial* pMat,
+     const char* pKey,
+     unsigned int  type,
+     unsigned int  index,
+     int* pOut,
+     unsigned int* pMax);
+
+
+#ifdef __cplusplus
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve an integer property with a specific key from a material
+ *
+ * See the sample for aiGetMaterialFloat for more information.*/
+// ---------------------------------------------------------------------------
+inline aiReturn aiGetMaterialInteger(const C_STRUCT aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    int* pOut)
+{
+    return aiGetMaterialIntegerArray(pMat,pKey,type,index,pOut,(unsigned int*)0x0);
+}
+
+#else
+
+// use our friend, the C preprocessor
+#define aiGetMaterialInteger (pMat, type, index, pKey, pOut) \
+    aiGetMaterialIntegerArray(pMat, type, index, pKey, pOut, NULL)
+
+#endif //!__cplusplus
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a color value from the material property table
+*
+* See the sample for aiGetMaterialFloat for more information*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialColor(const C_STRUCT aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    C_STRUCT aiColor4D* pOut);
+
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a aiUVTransform value from the material property table
+*
+* See the sample for aiGetMaterialFloat for more information*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialUVTransform(const C_STRUCT aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    C_STRUCT aiUVTransform* pOut);
+
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a string from the material property table
+*
+* See the sample for aiGetMaterialFloat for more information.*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialString(const C_STRUCT aiMaterial* pMat,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index,
+    C_STRUCT aiString* pOut);
+
+// ---------------------------------------------------------------------------
+/** Get the number of textures for a particular texture type.
+ *  @param[in] pMat Pointer to the input material. May not be NULL
+ *  @param type Texture type to check for
+ *  @return Number of textures for this type.
+ *  @note A texture can be easily queried using #aiGetMaterialTexture() */
+// ---------------------------------------------------------------------------
+ASSIMP_API unsigned int aiGetMaterialTextureCount(const C_STRUCT aiMaterial* pMat,
+    C_ENUM aiTextureType type);
+
+// ---------------------------------------------------------------------------
+/** @brief Helper function to get all values pertaining to a particular
+ *  texture slot from a material structure.
+ *
+ *  This function is provided just for convenience. You could also read the
+ *  texture by parsing all of its properties manually. This function bundles
+ *  all of them in a huge function monster.
+ *
+ *  @param[in] mat Pointer to the input material. May not be NULL
+ *  @param[in] type Specifies the texture stack to read from (e.g. diffuse,
+ *     specular, height map ...).
+ *  @param[in] index Index of the texture. The function fails if the
+ *     requested index is not available for this texture type.
+ *     #aiGetMaterialTextureCount() can be used to determine the number of
+ *     textures in a particular texture stack.
+ *  @param[out] path Receives the output path
+ *     If the texture is embedded, receives a '*' followed by the id of
+ *     the texture (for the textures stored in the corresponding scene) which
+ *     can be converted to an int using a function like atoi.
+ *     This parameter must be non-null.
+ *  @param mapping The texture mapping mode to be used.
+ *      Pass NULL if you're not interested in this information.
+ *  @param[out] uvindex For UV-mapped textures: receives the index of the UV
+ *      source channel. Unmodified otherwise.
+ *      Pass NULL if you're not interested in this information.
+ *  @param[out] blend Receives the blend factor for the texture
+ *      Pass NULL if you're not interested in this information.
+ *  @param[out] op Receives the texture blend operation to be perform between
+ *      this texture and the previous texture.
+ *      Pass NULL if you're not interested in this information.
+ *  @param[out] mapmode Receives the mapping modes to be used for the texture.
+ *      Pass NULL if you're not interested in this information. Otherwise,
+ *      pass a pointer to an array of two aiTextureMapMode's (one for each
+ *      axis, UV order).
+ *  @param[out] flags Receives the the texture flags.
+ *  @return AI_SUCCESS on success, otherwise something else. Have fun.*/
+// ---------------------------------------------------------------------------
+#ifdef __cplusplus
+ASSIMP_API aiReturn aiGetMaterialTexture(const C_STRUCT aiMaterial* mat,
+    aiTextureType type,
+    unsigned int  index,
+    aiString* path,
+    aiTextureMapping* mapping   = NULL,
+    unsigned int* uvindex       = NULL,
+    ai_real* blend              = NULL,
+    aiTextureOp* op             = NULL,
+    aiTextureMapMode* mapmode   = NULL,
+    unsigned int* flags         = NULL);
+#else
+C_ENUM aiReturn aiGetMaterialTexture(const C_STRUCT aiMaterial* mat,
+    C_ENUM aiTextureType type,
+    unsigned int  index,
+    C_STRUCT aiString* path,
+    C_ENUM aiTextureMapping* mapping    /*= NULL*/,
+    unsigned int* uvindex               /*= NULL*/,
+    ai_real* blend                      /*= NULL*/,
+    C_ENUM aiTextureOp* op              /*= NULL*/,
+    C_ENUM aiTextureMapMode* mapmode    /*= NULL*/,
+    unsigned int* flags                 /*= NULL*/);
+#endif // !#ifdef __cplusplus
+
+
+#ifdef __cplusplus
+}
+
+#include "material.inl"
+
+#endif //!__cplusplus
+
+#endif //!!AI_MATERIAL_H_INC
diff --git a/thirdparty/assimp/include/assimp/material.inl b/thirdparty/assimp/include/assimp/material.inl
new file mode 100644
index 0000000000..b05d6af6c3
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/material.inl
@@ -0,0 +1,390 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file material.inl
+ *  @brief Defines the C++ getters for the material system
+ */
+
+#pragma once
+#ifndef AI_MATERIAL_INL_INC
+#define AI_MATERIAL_INL_INC
+
+// ---------------------------------------------------------------------------
+inline aiPropertyTypeInfo ai_real_to_property_type_info(float)
+{
+	return aiPTI_Float;
+}
+
+inline aiPropertyTypeInfo ai_real_to_property_type_info(double)
+{
+	return aiPTI_Double;
+}
+// ---------------------------------------------------------------------------
+
+//! @cond never
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::GetTexture( aiTextureType type,
+   unsigned int  index,
+   C_STRUCT aiString* path,
+   aiTextureMapping* mapping    /*= NULL*/,
+   unsigned int* uvindex        /*= NULL*/,
+   ai_real* blend               /*= NULL*/,
+   aiTextureOp* op              /*= NULL*/,
+   aiTextureMapMode* mapmode    /*= NULL*/) const
+{
+    return ::aiGetMaterialTexture(this,type,index,path,mapping,uvindex,blend,op,mapmode);
+}
+
+// ---------------------------------------------------------------------------
+inline unsigned int aiMaterial::GetTextureCount(aiTextureType type) const
+{
+    return ::aiGetMaterialTextureCount(this,type);
+}
+
+// ---------------------------------------------------------------------------
+template <typename Type>
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx, Type* pOut,
+    unsigned int* pMax) const
+{
+    unsigned int iNum = pMax ? *pMax : 1;
+
+    const aiMaterialProperty* prop;
+    const aiReturn ret = ::aiGetMaterialProperty(this,pKey,type,idx,
+        (const aiMaterialProperty**)&prop);
+    if ( AI_SUCCESS == ret )    {
+
+        if (prop->mDataLength < sizeof(Type)*iNum) {
+            return AI_FAILURE;
+        }
+
+        if (prop->mType != aiPTI_Buffer) {
+            return AI_FAILURE;
+        }
+
+        iNum = std::min((size_t)iNum,prop->mDataLength / sizeof(Type));
+        ::memcpy(pOut,prop->mData,iNum * sizeof(Type));
+        if (pMax) {
+            *pMax = iNum;
+        }
+    }
+    return ret;
+}
+
+// ---------------------------------------------------------------------------
+template <typename Type>
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,Type& pOut) const
+{
+    const aiMaterialProperty* prop;
+    const aiReturn ret = ::aiGetMaterialProperty(this,pKey,type,idx,
+        (const aiMaterialProperty**)&prop);
+    if ( AI_SUCCESS == ret ) {
+
+        if (prop->mDataLength < sizeof(Type)) {
+            return AI_FAILURE;
+        }
+
+        if (prop->mType != aiPTI_Buffer) {
+            return AI_FAILURE;
+        }
+
+        ::memcpy( &pOut, prop->mData, sizeof( Type ) );
+    }
+    return ret;
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,ai_real* pOut,
+    unsigned int* pMax) const
+{
+    return ::aiGetMaterialFloatArray(this,pKey,type,idx,pOut,pMax);
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,int* pOut,
+    unsigned int* pMax) const
+{
+    return ::aiGetMaterialIntegerArray(this,pKey,type,idx,pOut,pMax);
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,ai_real& pOut) const
+{
+    return aiGetMaterialFloat(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,int& pOut) const
+{
+    return aiGetMaterialInteger(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,aiColor4D& pOut) const
+{
+    return aiGetMaterialColor(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,aiColor3D& pOut) const
+{
+    aiColor4D c;
+    const aiReturn ret = aiGetMaterialColor(this,pKey,type,idx,&c);
+    pOut = aiColor3D(c.r,c.g,c.b);
+    return ret;
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,aiString& pOut) const
+{
+    return aiGetMaterialString(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+    unsigned int idx,aiUVTransform& pOut) const
+{
+    return aiGetMaterialUVTransform(this,pKey,type,idx,&pOut);
+}
+
+
+// ---------------------------------------------------------------------------
+template<class TYPE>
+aiReturn aiMaterial::AddProperty (const TYPE* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(TYPE),
+        pKey,type,index,aiPTI_Buffer);
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const float* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(float),
+        pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const double* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(double),
+        pKey,type,index,aiPTI_Double);
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const aiUVTransform* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiUVTransform),
+        pKey,type,index,ai_real_to_property_type_info(pInput->mRotation));
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const aiColor4D* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiColor4D),
+        pKey,type,index,ai_real_to_property_type_info(pInput->a));
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const aiColor3D* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiColor3D),
+        pKey,type,index,ai_real_to_property_type_info(pInput->b));
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const aiVector3D* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiVector3D),
+        pKey,type,index,ai_real_to_property_type_info(pInput->x));
+}
+
+// ---------------------------------------------------------------------------
+inline aiReturn aiMaterial::AddProperty(const int* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(int),
+        pKey,type,index,aiPTI_Integer);
+}
+
+
+// ---------------------------------------------------------------------------
+// The template specializations below are for backwards compatibility.
+// The recommended way to add material properties is using the non-template
+// overloads.
+// ---------------------------------------------------------------------------
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<float>(const float* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(float),
+        pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<double>(const double* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(double),
+        pKey,type,index,aiPTI_Double);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<aiUVTransform>(const aiUVTransform* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiUVTransform),
+        pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<aiColor4D>(const aiColor4D* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiColor4D),
+        pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<aiColor3D>(const aiColor3D* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiColor3D),
+        pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<aiVector3D>(const aiVector3D* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(aiVector3D),
+        pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+inline aiReturn aiMaterial::AddProperty<int>(const int* pInput,
+    const unsigned int pNumValues,
+    const char* pKey,
+    unsigned int type,
+    unsigned int index)
+{
+    return AddBinaryProperty((const void*)pInput,
+        pNumValues * sizeof(int),
+        pKey,type,index,aiPTI_Integer);
+}
+
+//! @endcond
+
+#endif //! AI_MATERIAL_INL_INC
diff --git a/thirdparty/assimp/include/assimp/matrix3x3.h b/thirdparty/assimp/include/assimp/matrix3x3.h
new file mode 100644
index 0000000000..22b69561ff
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/matrix3x3.h
@@ -0,0 +1,183 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file matrix3x3.h
+ *  @brief Definition of a 3x3 matrix, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_MATRIX3X3_H_INC
+#define AI_MATRIX3X3_H_INC
+
+#include "defs.h"
+
+#ifdef __cplusplus
+
+template <typename T> class aiMatrix4x4t;
+template <typename T> class aiVector2t;
+
+// ---------------------------------------------------------------------------
+/** @brief Represents a row-major 3x3 matrix
+ *
+ *  There's much confusion about matrix layouts (column vs. row order).
+ *  This is *always* a row-major matrix. Not even with the
+ *  #aiProcess_ConvertToLeftHanded flag, which absolutely does not affect
+ *  matrix order - it just affects the handedness of the coordinate system
+ *  defined thereby.
+ */
+template <typename TReal>
+class aiMatrix3x3t
+{
+public:
+
+    aiMatrix3x3t() AI_NO_EXCEPT :
+        a1(static_cast<TReal>(1.0f)), a2(), a3(),
+        b1(), b2(static_cast<TReal>(1.0f)), b3(),
+        c1(), c2(), c3(static_cast<TReal>(1.0f)) {}
+
+    aiMatrix3x3t (  TReal _a1, TReal _a2, TReal _a3,
+                    TReal _b1, TReal _b2, TReal _b3,
+                    TReal _c1, TReal _c2, TReal _c3) :
+        a1(_a1), a2(_a2), a3(_a3),
+        b1(_b1), b2(_b2), b3(_b3),
+        c1(_c1), c2(_c2), c3(_c3)
+    {}
+
+public:
+
+    // matrix multiplication.
+    aiMatrix3x3t& operator *= (const aiMatrix3x3t& m);
+    aiMatrix3x3t  operator  * (const aiMatrix3x3t& m) const;
+
+    // array access operators
+    TReal* operator[]       (unsigned int p_iIndex);
+    const TReal* operator[] (unsigned int p_iIndex) const;
+
+    // comparison operators
+    bool operator== (const aiMatrix4x4t<TReal>& m) const;
+    bool operator!= (const aiMatrix4x4t<TReal>& m) const;
+
+    bool Equal(const aiMatrix4x4t<TReal>& m, TReal epsilon = 1e-6) const;
+
+    template <typename TOther>
+    operator aiMatrix3x3t<TOther> () const;
+
+public:
+
+    // -------------------------------------------------------------------
+    /** @brief Construction from a 4x4 matrix. The remaining parts
+     *  of the matrix are ignored.
+     */
+    explicit aiMatrix3x3t( const aiMatrix4x4t<TReal>& pMatrix);
+
+    // -------------------------------------------------------------------
+    /** @brief Transpose the matrix
+     */
+    aiMatrix3x3t& Transpose();
+
+    // -------------------------------------------------------------------
+    /** @brief Invert the matrix.
+     *  If the matrix is not invertible all elements are set to qnan.
+     *  Beware, use (f != f) to check whether a TReal f is qnan.
+     */
+    aiMatrix3x3t& Inverse();
+    TReal Determinant() const;
+
+public:
+    // -------------------------------------------------------------------
+    /** @brief Returns a rotation matrix for a rotation around z
+     *  @param a Rotation angle, in radians
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix3x3t& RotationZ(TReal a, aiMatrix3x3t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns a rotation matrix for a rotation around
+     *    an arbitrary axis.
+     *
+     *  @param a Rotation angle, in radians
+     *  @param axis Axis to rotate around
+     *  @param out To be filled
+     */
+    static aiMatrix3x3t& Rotation( TReal a,
+        const aiVector3t<TReal>& axis, aiMatrix3x3t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns a translation matrix
+     *  @param v Translation vector
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix3x3t& Translation( const aiVector2t<TReal>& v, aiMatrix3x3t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief A function for creating a rotation matrix that rotates a
+     *  vector called "from" into another vector called "to".
+     * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+     * Output: mtx[3][3] -- a 3x3 matrix in column-major form
+     * Authors: Tomas Möller, John Hughes
+     *          "Efficiently Building a Matrix to Rotate One Vector to Another"
+     *          Journal of Graphics Tools, 4(4):1-4, 1999
+     */
+    static aiMatrix3x3t& FromToMatrix(const aiVector3t<TReal>& from,
+        const aiVector3t<TReal>& to, aiMatrix3x3t& out);
+
+public:
+    TReal a1, a2, a3;
+    TReal b1, b2, b3;
+    TReal c1, c2, c3;
+};
+
+typedef aiMatrix3x3t<ai_real> aiMatrix3x3;
+
+#else
+
+struct aiMatrix3x3 {
+    ai_real a1, a2, a3;
+    ai_real b1, b2, b3;
+    ai_real c1, c2, c3;
+};
+
+#endif // __cplusplus
+
+#endif // AI_MATRIX3X3_H_INC
diff --git a/thirdparty/assimp/include/assimp/matrix3x3.inl b/thirdparty/assimp/include/assimp/matrix3x3.inl
new file mode 100644
index 0000000000..d9d45a3e92
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/matrix3x3.inl
@@ -0,0 +1,357 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file matrix3x3.inl
+ *  @brief Inline implementation of the 3x3 matrix operators
+ */
+#pragma once
+#ifndef AI_MATRIX3X3_INL_INC
+#define AI_MATRIX3X3_INL_INC
+
+#ifdef __cplusplus
+#include "matrix3x3.h"
+
+#include "matrix4x4.h"
+#include <algorithm>
+#include <cmath>
+#include <limits>
+
+// ------------------------------------------------------------------------------------------------
+// Construction from a 4x4 matrix. The remaining parts of the matrix are ignored.
+template <typename TReal>
+inline aiMatrix3x3t<TReal>::aiMatrix3x3t( const aiMatrix4x4t<TReal>& pMatrix)
+{
+    a1 = pMatrix.a1; a2 = pMatrix.a2; a3 = pMatrix.a3;
+    b1 = pMatrix.b1; b2 = pMatrix.b2; b3 = pMatrix.b3;
+    c1 = pMatrix.c1; c2 = pMatrix.c2; c3 = pMatrix.c3;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::operator *= (const aiMatrix3x3t<TReal>& m)
+{
+    *this = aiMatrix3x3t<TReal>(m.a1 * a1 + m.b1 * a2 + m.c1 * a3,
+        m.a2 * a1 + m.b2 * a2 + m.c2 * a3,
+        m.a3 * a1 + m.b3 * a2 + m.c3 * a3,
+        m.a1 * b1 + m.b1 * b2 + m.c1 * b3,
+        m.a2 * b1 + m.b2 * b2 + m.c2 * b3,
+        m.a3 * b1 + m.b3 * b2 + m.c3 * b3,
+        m.a1 * c1 + m.b1 * c2 + m.c1 * c3,
+        m.a2 * c1 + m.b2 * c2 + m.c2 * c3,
+        m.a3 * c1 + m.b3 * c2 + m.c3 * c3);
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiMatrix3x3t<TReal>::operator aiMatrix3x3t<TOther> () const
+{
+    return aiMatrix3x3t<TOther>(static_cast<TOther>(a1),static_cast<TOther>(a2),static_cast<TOther>(a3),
+        static_cast<TOther>(b1),static_cast<TOther>(b2),static_cast<TOther>(b3),
+        static_cast<TOther>(c1),static_cast<TOther>(c2),static_cast<TOther>(c3));
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal> aiMatrix3x3t<TReal>::operator* (const aiMatrix3x3t<TReal>& m) const
+{
+    aiMatrix3x3t<TReal> temp( *this);
+    temp *= m;
+    return temp;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline TReal* aiMatrix3x3t<TReal>::operator[] (unsigned int p_iIndex) {
+    switch ( p_iIndex ) {
+        case 0:
+            return &a1;
+        case 1:
+            return &b1;
+        case 2:
+            return &c1;
+        default:
+            break;
+    }
+    return &a1;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline const TReal* aiMatrix3x3t<TReal>::operator[] (unsigned int p_iIndex) const {
+    switch ( p_iIndex ) {
+        case 0:
+            return &a1;
+        case 1:
+            return &b1;
+        case 2:
+            return &c1;
+        default:
+            break;
+    }
+    return &a1;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline bool aiMatrix3x3t<TReal>::operator== (const aiMatrix4x4t<TReal>& m) const
+{
+    return a1 == m.a1 && a2 == m.a2 && a3 == m.a3 &&
+           b1 == m.b1 && b2 == m.b2 && b3 == m.b3 &&
+           c1 == m.c1 && c2 == m.c2 && c3 == m.c3;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline bool aiMatrix3x3t<TReal>::operator!= (const aiMatrix4x4t<TReal>& m) const
+{
+    return !(*this == m);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline bool aiMatrix3x3t<TReal>::Equal(const aiMatrix4x4t<TReal>& m, TReal epsilon) const {
+    return
+        std::abs(a1 - m.a1) <= epsilon &&
+        std::abs(a2 - m.a2) <= epsilon &&
+        std::abs(a3 - m.a3) <= epsilon &&
+        std::abs(b1 - m.b1) <= epsilon &&
+        std::abs(b2 - m.b2) <= epsilon &&
+        std::abs(b3 - m.b3) <= epsilon &&
+        std::abs(c1 - m.c1) <= epsilon &&
+        std::abs(c2 - m.c2) <= epsilon &&
+        std::abs(c3 - m.c3) <= epsilon;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Transpose()
+{
+    // (TReal&) don't remove, GCC complains cause of packed fields
+    std::swap( (TReal&)a2, (TReal&)b1);
+    std::swap( (TReal&)a3, (TReal&)c1);
+    std::swap( (TReal&)b3, (TReal&)c2);
+    return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline TReal aiMatrix3x3t<TReal>::Determinant() const
+{
+    return a1*b2*c3 - a1*b3*c2 + a2*b3*c1 - a2*b1*c3 + a3*b1*c2 - a3*b2*c1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Inverse()
+{
+    // Compute the reciprocal determinant
+    TReal det = Determinant();
+    if(det == static_cast<TReal>(0.0))
+    {
+        // Matrix not invertible. Setting all elements to nan is not really
+        // correct in a mathematical sense; but at least qnans are easy to
+        // spot. XXX we might throw an exception instead, which would
+        // be even much better to spot :/.
+        const TReal nan = std::numeric_limits<TReal>::quiet_NaN();
+        *this = aiMatrix3x3t<TReal>( nan,nan,nan,nan,nan,nan,nan,nan,nan);
+
+        return *this;
+    }
+
+    TReal invdet = static_cast<TReal>(1.0) / det;
+
+    aiMatrix3x3t<TReal> res;
+    res.a1 = invdet  * (b2 * c3 - b3 * c2);
+    res.a2 = -invdet * (a2 * c3 - a3 * c2);
+    res.a3 = invdet  * (a2 * b3 - a3 * b2);
+    res.b1 = -invdet * (b1 * c3 - b3 * c1);
+    res.b2 = invdet  * (a1 * c3 - a3 * c1);
+    res.b3 = -invdet * (a1 * b3 - a3 * b1);
+    res.c1 = invdet  * (b1 * c2 - b2 * c1);
+    res.c2 = -invdet * (a1 * c2 - a2 * c1);
+    res.c3 = invdet  * (a1 * b2 - a2 * b1);
+    *this = res;
+
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::RotationZ(TReal a, aiMatrix3x3t<TReal>& out)
+{
+    out.a1 = out.b2 = std::cos(a);
+    out.b1 = std::sin(a);
+    out.a2 = - out.b1;
+
+    out.a3 = out.b3 = out.c1 = out.c2 = 0.f;
+    out.c3 = 1.f;
+
+    return out;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns a rotation matrix for a rotation around an arbitrary axis.
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Rotation( TReal a, const aiVector3t<TReal>& axis, aiMatrix3x3t<TReal>& out)
+{
+  TReal c = std::cos( a), s = std::sin( a), t = 1 - c;
+  TReal x = axis.x, y = axis.y, z = axis.z;
+
+  // Many thanks to MathWorld and Wikipedia
+  out.a1 = t*x*x + c;   out.a2 = t*x*y - s*z; out.a3 = t*x*z + s*y;
+  out.b1 = t*x*y + s*z; out.b2 = t*y*y + c;   out.b3 = t*y*z - s*x;
+  out.c1 = t*x*z - s*y; out.c2 = t*y*z + s*x; out.c3 = t*z*z + c;
+
+  return out;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Translation( const aiVector2t<TReal>& v, aiMatrix3x3t<TReal>& out)
+{
+    out = aiMatrix3x3t<TReal>();
+    out.a3 = v.x;
+    out.b3 = v.y;
+    return out;
+}
+
+// ----------------------------------------------------------------------------------------
+/** A function for creating a rotation matrix that rotates a vector called
+ * "from" into another vector called "to".
+ * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+ * Output: mtx[3][3] -- a 3x3 matrix in colum-major form
+ * Authors: Tomas Möller, John Hughes
+ *          "Efficiently Building a Matrix to Rotate One Vector to Another"
+ *          Journal of Graphics Tools, 4(4):1-4, 1999
+ */
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::FromToMatrix(const aiVector3t<TReal>& from,
+    const aiVector3t<TReal>& to, aiMatrix3x3t<TReal>& mtx)
+{
+    const TReal e = from * to;
+    const TReal f = (e < 0)? -e:e;
+
+    if (f > static_cast<TReal>(1.0) - static_cast<TReal>(0.00001))     /* "from" and "to"-vector almost parallel */
+    {
+        aiVector3D u,v;     /* temporary storage vectors */
+        aiVector3D x;       /* vector most nearly orthogonal to "from" */
+
+        x.x = (from.x > 0.0)? from.x : -from.x;
+        x.y = (from.y > 0.0)? from.y : -from.y;
+        x.z = (from.z > 0.0)? from.z : -from.z;
+
+        if (x.x < x.y)
+        {
+            if (x.x < x.z)
+            {
+                x.x = static_cast<TReal>(1.0);
+                x.y = x.z = static_cast<TReal>(0.0);
+            }
+            else
+            {
+                x.z = static_cast<TReal>(1.0);
+                x.x = x.y = static_cast<TReal>(0.0);
+            }
+        }
+        else
+        {
+            if (x.y < x.z)
+            {
+                x.y = static_cast<TReal>(1.0);
+                x.x = x.z = static_cast<TReal>(0.0);
+            }
+            else
+            {
+                x.z = static_cast<TReal>(1.0);
+                x.x = x.y = static_cast<TReal>(0.0);
+            }
+        }
+
+        u.x = x.x - from.x; u.y = x.y - from.y; u.z = x.z - from.z;
+        v.x = x.x - to.x;   v.y = x.y - to.y;   v.z = x.z - to.z;
+
+        const TReal c1_ = static_cast<TReal>(2.0) / (u * u);
+        const TReal c2_ = static_cast<TReal>(2.0) / (v * v);
+        const TReal c3_ = c1_ * c2_  * (u * v);
+
+        for (unsigned int i = 0; i < 3; i++)
+        {
+            for (unsigned int j = 0; j < 3; j++)
+            {
+                mtx[i][j] =  - c1_ * u[i] * u[j] - c2_ * v[i] * v[j]
+                    + c3_ * v[i] * u[j];
+            }
+            mtx[i][i] += static_cast<TReal>(1.0);
+        }
+    }
+    else  /* the most common case, unless "from"="to", or "from"=-"to" */
+    {
+        const aiVector3D v = from ^ to;
+        /* ... use this hand optimized version (9 mults less) */
+        const TReal h = static_cast<TReal>(1.0)/(static_cast<TReal>(1.0) + e);      /* optimization by Gottfried Chen */
+        const TReal hvx = h * v.x;
+        const TReal hvz = h * v.z;
+        const TReal hvxy = hvx * v.y;
+        const TReal hvxz = hvx * v.z;
+        const TReal hvyz = hvz * v.y;
+        mtx[0][0] = e + hvx * v.x;
+        mtx[0][1] = hvxy - v.z;
+        mtx[0][2] = hvxz + v.y;
+
+        mtx[1][0] = hvxy + v.z;
+        mtx[1][1] = e + h * v.y * v.y;
+        mtx[1][2] = hvyz - v.x;
+
+        mtx[2][0] = hvxz - v.y;
+        mtx[2][1] = hvyz + v.x;
+        mtx[2][2] = e + hvz * v.z;
+    }
+    return mtx;
+}
+
+
+#endif // __cplusplus
+#endif // AI_MATRIX3X3_INL_INC
diff --git a/thirdparty/assimp/include/assimp/matrix4x4.h b/thirdparty/assimp/include/assimp/matrix4x4.h
new file mode 100644
index 0000000000..046bb535f2
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/matrix4x4.h
@@ -0,0 +1,280 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file matrix4x4.h
+ *  @brief 4x4 matrix structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_MATRIX4X4_H_INC
+#define AI_MATRIX4X4_H_INC
+
+#include "vector3.h"
+#include "defs.h"
+
+#ifdef __cplusplus
+
+template<typename TReal> class aiMatrix3x3t;
+template<typename TReal> class aiQuaterniont;
+
+// ---------------------------------------------------------------------------
+/** @brief Represents a row-major 4x4 matrix, use this for homogeneous
+ *   coordinates.
+ *
+ *  There's much confusion about matrix layouts (column vs. row order).
+ *  This is *always* a row-major matrix. Not even with the
+ *  #aiProcess_ConvertToLeftHanded flag, which absolutely does not affect
+ *  matrix order - it just affects the handedness of the coordinate system
+ *  defined thereby.
+ */
+template<typename TReal>
+class aiMatrix4x4t
+{
+public:
+
+    /** set to identity */
+    aiMatrix4x4t() AI_NO_EXCEPT;
+
+    /** construction from single values */
+    aiMatrix4x4t (  TReal _a1, TReal _a2, TReal _a3, TReal _a4,
+                    TReal _b1, TReal _b2, TReal _b3, TReal _b4,
+                    TReal _c1, TReal _c2, TReal _c3, TReal _c4,
+                    TReal _d1, TReal _d2, TReal _d3, TReal _d4);
+
+
+    /** construction from 3x3 matrix, remaining elements are set to identity */
+    explicit aiMatrix4x4t( const aiMatrix3x3t<TReal>& m);
+
+    /** construction from position, rotation and scaling components
+     * @param scaling The scaling for the x,y,z axes
+     * @param rotation The rotation as a hamilton quaternion
+     * @param position The position for the x,y,z axes
+     */
+    aiMatrix4x4t(const aiVector3t<TReal>& scaling, const aiQuaterniont<TReal>& rotation,
+        const aiVector3t<TReal>& position);
+
+public:
+
+    // array access operators
+	/** @fn TReal* operator[] (unsigned int p_iIndex)
+	 *  @param [in] p_iIndex - index of the row.
+	 *  @return pointer to pointed row.
+	 */
+    TReal* operator[]       (unsigned int p_iIndex);
+
+	/** @fn const TReal* operator[] (unsigned int p_iIndex) const
+	 *  @overload TReal* operator[] (unsigned int p_iIndex)
+	 */
+    const TReal* operator[] (unsigned int p_iIndex) const;
+
+    // comparison operators
+    bool operator== (const aiMatrix4x4t& m) const;
+    bool operator!= (const aiMatrix4x4t& m) const;
+
+    bool Equal(const aiMatrix4x4t& m, TReal epsilon = 1e-6) const;
+
+    // matrix multiplication.
+    aiMatrix4x4t& operator *= (const aiMatrix4x4t& m);
+    aiMatrix4x4t  operator *  (const aiMatrix4x4t& m) const;
+    aiMatrix4x4t operator * (const TReal& aFloat) const;
+    aiMatrix4x4t operator + (const aiMatrix4x4t& aMatrix) const;
+
+    template <typename TOther>
+    operator aiMatrix4x4t<TOther> () const;
+
+public:
+
+    // -------------------------------------------------------------------
+    /** @brief Transpose the matrix */
+    aiMatrix4x4t& Transpose();
+
+    // -------------------------------------------------------------------
+    /** @brief Invert the matrix.
+     *  If the matrix is not invertible all elements are set to qnan.
+     *  Beware, use (f != f) to check whether a TReal f is qnan.
+     */
+    aiMatrix4x4t& Inverse();
+    TReal Determinant() const;
+
+
+    // -------------------------------------------------------------------
+    /** @brief Returns true of the matrix is the identity matrix.
+     *  The check is performed against a not so small epsilon.
+     */
+    inline bool IsIdentity() const;
+
+    // -------------------------------------------------------------------
+    /** @brief Decompose a trafo matrix into its original components
+     *  @param scaling Receives the output scaling for the x,y,z axes
+     *  @param rotation Receives the output rotation as a hamilton
+     *   quaternion
+     *  @param position Receives the output position for the x,y,z axes
+     */
+    void Decompose (aiVector3t<TReal>& scaling, aiQuaterniont<TReal>& rotation,
+        aiVector3t<TReal>& position) const;
+
+	// -------------------------------------------------------------------
+	/** @fn void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotation, aiVector3t<TReal>& pPosition) const
+     *  @brief Decompose a trafo matrix into its original components.
+     * Thx to good FAQ at http://www.gamedev.ru/code/articles/faq_matrix_quat
+     *  @param [out] pScaling - Receives the output scaling for the x,y,z axes.
+     *  @param [out] pRotation - Receives the output rotation as a Euler angles.
+     *  @param [out] pPosition - Receives the output position for the x,y,z axes.
+     */
+    void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotation, aiVector3t<TReal>& pPosition) const;
+
+	// -------------------------------------------------------------------
+	/** @fn void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotationAxis, TReal& pRotationAngle, aiVector3t<TReal>& pPosition) const
+     *  @brief Decompose a trafo matrix into its original components
+	 * Thx to good FAQ at http://www.gamedev.ru/code/articles/faq_matrix_quat
+     *  @param [out] pScaling - Receives the output scaling for the x,y,z axes.
+     *  @param [out] pRotationAxis - Receives the output rotation axis.
+	 *  @param [out] pRotationAngle - Receives the output rotation angle for @ref pRotationAxis.
+     *  @param [out] pPosition - Receives the output position for the x,y,z axes.
+     */
+    void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotationAxis, TReal& pRotationAngle, aiVector3t<TReal>& pPosition) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Decompose a trafo matrix with no scaling into its
+     *    original components
+     *  @param rotation Receives the output rotation as a hamilton
+     *    quaternion
+     *  @param position Receives the output position for the x,y,z axes
+     */
+    void DecomposeNoScaling (aiQuaterniont<TReal>& rotation,
+        aiVector3t<TReal>& position) const;
+
+
+    // -------------------------------------------------------------------
+    /** @brief Creates a trafo matrix from a set of euler angles
+     *  @param x Rotation angle for the x-axis, in radians
+     *  @param y Rotation angle for the y-axis, in radians
+     *  @param z Rotation angle for the z-axis, in radians
+     */
+    aiMatrix4x4t& FromEulerAnglesXYZ(TReal x, TReal y, TReal z);
+    aiMatrix4x4t& FromEulerAnglesXYZ(const aiVector3t<TReal>& blubb);
+
+public:
+    // -------------------------------------------------------------------
+    /** @brief Returns a rotation matrix for a rotation around the x axis
+     *  @param a Rotation angle, in radians
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix4x4t& RotationX(TReal a, aiMatrix4x4t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns a rotation matrix for a rotation around the y axis
+     *  @param a Rotation angle, in radians
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix4x4t& RotationY(TReal a, aiMatrix4x4t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns a rotation matrix for a rotation around the z axis
+     *  @param a Rotation angle, in radians
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix4x4t& RotationZ(TReal a, aiMatrix4x4t& out);
+
+    // -------------------------------------------------------------------
+    /** Returns a rotation matrix for a rotation around an arbitrary axis.
+     *  @param a Rotation angle, in radians
+     *  @param axis Rotation axis, should be a normalized vector.
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix4x4t& Rotation(TReal a, const aiVector3t<TReal>& axis,
+            aiMatrix4x4t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns a translation matrix
+     *  @param v Translation vector
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix4x4t& Translation( const aiVector3t<TReal>& v, 
+            aiMatrix4x4t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief Returns a scaling matrix
+     *  @param v Scaling vector
+     *  @param out Receives the output matrix
+     *  @return Reference to the output matrix
+     */
+    static aiMatrix4x4t& Scaling( const aiVector3t<TReal>& v, aiMatrix4x4t& out);
+
+    // -------------------------------------------------------------------
+    /** @brief A function for creating a rotation matrix that rotates a
+     *  vector called "from" into another vector called "to".
+     * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+     * Output: mtx[3][3] -- a 3x3 matrix in column-major form
+     * Authors: Tomas Mueller, John Hughes
+     *          "Efficiently Building a Matrix to Rotate One Vector to Another"
+     *          Journal of Graphics Tools, 4(4):1-4, 1999
+     */
+    static aiMatrix4x4t& FromToMatrix(const aiVector3t<TReal>& from,
+            const aiVector3t<TReal>& to, aiMatrix4x4t& out);
+
+public:
+    TReal a1, a2, a3, a4;
+    TReal b1, b2, b3, b4;
+    TReal c1, c2, c3, c4;
+    TReal d1, d2, d3, d4;
+};
+
+typedef aiMatrix4x4t<ai_real> aiMatrix4x4;
+
+#else
+
+struct aiMatrix4x4 {
+    ai_real a1, a2, a3, a4;
+    ai_real b1, b2, b3, b4;
+    ai_real c1, c2, c3, c4;
+    ai_real d1, d2, d3, d4;
+};
+
+
+#endif // __cplusplus
+
+#endif // AI_MATRIX4X4_H_INC
diff --git a/thirdparty/assimp/include/assimp/matrix4x4.inl b/thirdparty/assimp/include/assimp/matrix4x4.inl
new file mode 100644
index 0000000000..ebc67a06ec
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/matrix4x4.inl
@@ -0,0 +1,686 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file matrix4x4.inl
+ *  @brief Inline implementation of the 4x4 matrix operators
+ */
+#pragma once
+#ifndef AI_MATRIX4X4_INL_INC
+#define AI_MATRIX4X4_INL_INC
+
+#ifdef __cplusplus
+
+#include "matrix4x4.h"
+#include "matrix3x3.h"
+#include "quaternion.h"
+
+#include <algorithm>
+#include <limits>
+#include <cmath>
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+aiMatrix4x4t<TReal>::aiMatrix4x4t() AI_NO_EXCEPT :
+    a1(1.0f), a2(), a3(), a4(),
+    b1(), b2(1.0f), b3(), b4(),
+    c1(), c2(), c3(1.0f), c4(),
+    d1(), d2(), d3(), d4(1.0f)
+{
+
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+aiMatrix4x4t<TReal>::aiMatrix4x4t (TReal _a1, TReal _a2, TReal _a3, TReal _a4,
+              TReal _b1, TReal _b2, TReal _b3, TReal _b4,
+              TReal _c1, TReal _c2, TReal _c3, TReal _c4,
+              TReal _d1, TReal _d2, TReal _d3, TReal _d4) :
+    a1(_a1), a2(_a2), a3(_a3), a4(_a4),
+    b1(_b1), b2(_b2), b3(_b3), b4(_b4),
+    c1(_c1), c2(_c2), c3(_c3), c4(_c4),
+    d1(_d1), d2(_d2), d3(_d3), d4(_d4)
+{
+
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiMatrix4x4t<TReal>::operator aiMatrix4x4t<TOther> () const
+{
+    return aiMatrix4x4t<TOther>(static_cast<TOther>(a1),static_cast<TOther>(a2),static_cast<TOther>(a3),static_cast<TOther>(a4),
+        static_cast<TOther>(b1),static_cast<TOther>(b2),static_cast<TOther>(b3),static_cast<TOther>(b4),
+        static_cast<TOther>(c1),static_cast<TOther>(c2),static_cast<TOther>(c3),static_cast<TOther>(c4),
+        static_cast<TOther>(d1),static_cast<TOther>(d2),static_cast<TOther>(d3),static_cast<TOther>(d4));
+}
+
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>::aiMatrix4x4t (const aiMatrix3x3t<TReal>& m)
+{
+    a1 = m.a1; a2 = m.a2; a3 = m.a3; a4 = static_cast<TReal>(0.0);
+    b1 = m.b1; b2 = m.b2; b3 = m.b3; b4 = static_cast<TReal>(0.0);
+    c1 = m.c1; c2 = m.c2; c3 = m.c3; c4 = static_cast<TReal>(0.0);
+    d1 = static_cast<TReal>(0.0); d2 = static_cast<TReal>(0.0); d3 = static_cast<TReal>(0.0); d4 = static_cast<TReal>(1.0);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>::aiMatrix4x4t (const aiVector3t<TReal>& scaling, const aiQuaterniont<TReal>& rotation, const aiVector3t<TReal>& position)
+{
+    // build a 3x3 rotation matrix
+    aiMatrix3x3t<TReal> m = rotation.GetMatrix();
+
+    a1 = m.a1 * scaling.x;
+    a2 = m.a2 * scaling.x;
+    a3 = m.a3 * scaling.x;
+    a4 = position.x;
+
+    b1 = m.b1 * scaling.y;
+    b2 = m.b2 * scaling.y;
+    b3 = m.b3 * scaling.y;
+    b4 = position.y;
+
+    c1 = m.c1 * scaling.z;
+    c2 = m.c2 * scaling.z;
+    c3 = m.c3 * scaling.z;
+    c4= position.z;
+
+    d1 = static_cast<TReal>(0.0);
+    d2 = static_cast<TReal>(0.0);
+    d3 = static_cast<TReal>(0.0);
+    d4 = static_cast<TReal>(1.0);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::operator *= (const aiMatrix4x4t<TReal>& m)
+{
+    *this = aiMatrix4x4t<TReal>(
+        m.a1 * a1 + m.b1 * a2 + m.c1 * a3 + m.d1 * a4,
+        m.a2 * a1 + m.b2 * a2 + m.c2 * a3 + m.d2 * a4,
+        m.a3 * a1 + m.b3 * a2 + m.c3 * a3 + m.d3 * a4,
+        m.a4 * a1 + m.b4 * a2 + m.c4 * a3 + m.d4 * a4,
+        m.a1 * b1 + m.b1 * b2 + m.c1 * b3 + m.d1 * b4,
+        m.a2 * b1 + m.b2 * b2 + m.c2 * b3 + m.d2 * b4,
+        m.a3 * b1 + m.b3 * b2 + m.c3 * b3 + m.d3 * b4,
+        m.a4 * b1 + m.b4 * b2 + m.c4 * b3 + m.d4 * b4,
+        m.a1 * c1 + m.b1 * c2 + m.c1 * c3 + m.d1 * c4,
+        m.a2 * c1 + m.b2 * c2 + m.c2 * c3 + m.d2 * c4,
+        m.a3 * c1 + m.b3 * c2 + m.c3 * c3 + m.d3 * c4,
+        m.a4 * c1 + m.b4 * c2 + m.c4 * c3 + m.d4 * c4,
+        m.a1 * d1 + m.b1 * d2 + m.c1 * d3 + m.d1 * d4,
+        m.a2 * d1 + m.b2 * d2 + m.c2 * d3 + m.d2 * d4,
+        m.a3 * d1 + m.b3 * d2 + m.c3 * d3 + m.d3 * d4,
+        m.a4 * d1 + m.b4 * d2 + m.c4 * d3 + m.d4 * d4);
+    return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal> aiMatrix4x4t<TReal>::operator* (const TReal& aFloat) const
+{
+    aiMatrix4x4t<TReal> temp(
+        a1 * aFloat,
+        a2 * aFloat,
+        a3 * aFloat,
+        a4 * aFloat,
+        b1 * aFloat,
+        b2 * aFloat,
+        b3 * aFloat,
+        b4 * aFloat,
+        c1 * aFloat,
+        c2 * aFloat,
+        c3 * aFloat,
+        c4 * aFloat,
+        d1 * aFloat,
+        d2 * aFloat,
+        d3 * aFloat,
+        d4 * aFloat);
+    return temp;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal> aiMatrix4x4t<TReal>::operator+ (const aiMatrix4x4t<TReal>& m) const
+{
+    aiMatrix4x4t<TReal> temp(
+        m.a1 + a1,
+        m.a2 + a2,
+        m.a3 + a3,
+        m.a4 + a4,
+        m.b1 + b1,
+        m.b2 + b2,
+        m.b3 + b3,
+        m.b4 + b4,
+        m.c1 + c1,
+        m.c2 + c2,
+        m.c3 + c3,
+        m.c4 + c4,
+        m.d1 + d1,
+        m.d2 + d2,
+        m.d3 + d3,
+        m.d4 + d4);
+    return temp;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal> aiMatrix4x4t<TReal>::operator* (const aiMatrix4x4t<TReal>& m) const
+{
+    aiMatrix4x4t<TReal> temp( *this);
+    temp *= m;
+    return temp;
+}
+
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Transpose()
+{
+    // (TReal&) don't remove, GCC complains cause of packed fields
+    std::swap( (TReal&)b1, (TReal&)a2);
+    std::swap( (TReal&)c1, (TReal&)a3);
+    std::swap( (TReal&)c2, (TReal&)b3);
+    std::swap( (TReal&)d1, (TReal&)a4);
+    std::swap( (TReal&)d2, (TReal&)b4);
+    std::swap( (TReal&)d3, (TReal&)c4);
+    return *this;
+}
+
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline TReal aiMatrix4x4t<TReal>::Determinant() const
+{
+    return a1*b2*c3*d4 - a1*b2*c4*d3 + a1*b3*c4*d2 - a1*b3*c2*d4
+        + a1*b4*c2*d3 - a1*b4*c3*d2 - a2*b3*c4*d1 + a2*b3*c1*d4
+        - a2*b4*c1*d3 + a2*b4*c3*d1 - a2*b1*c3*d4 + a2*b1*c4*d3
+        + a3*b4*c1*d2 - a3*b4*c2*d1 + a3*b1*c2*d4 - a3*b1*c4*d2
+        + a3*b2*c4*d1 - a3*b2*c1*d4 - a4*b1*c2*d3 + a4*b1*c3*d2
+        - a4*b2*c3*d1 + a4*b2*c1*d3 - a4*b3*c1*d2 + a4*b3*c2*d1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Inverse()
+{
+    // Compute the reciprocal determinant
+    const TReal det = Determinant();
+    if(det == static_cast<TReal>(0.0))
+    {
+        // Matrix not invertible. Setting all elements to nan is not really
+        // correct in a mathematical sense but it is easy to debug for the
+        // programmer.
+        const TReal nan = std::numeric_limits<TReal>::quiet_NaN();
+        *this = aiMatrix4x4t<TReal>(
+            nan,nan,nan,nan,
+            nan,nan,nan,nan,
+            nan,nan,nan,nan,
+            nan,nan,nan,nan);
+
+        return *this;
+    }
+
+    const TReal invdet = static_cast<TReal>(1.0) / det;
+
+    aiMatrix4x4t<TReal> res;
+    res.a1 = invdet  * (b2 * (c3 * d4 - c4 * d3) + b3 * (c4 * d2 - c2 * d4) + b4 * (c2 * d3 - c3 * d2));
+    res.a2 = -invdet * (a2 * (c3 * d4 - c4 * d3) + a3 * (c4 * d2 - c2 * d4) + a4 * (c2 * d3 - c3 * d2));
+    res.a3 = invdet  * (a2 * (b3 * d4 - b4 * d3) + a3 * (b4 * d2 - b2 * d4) + a4 * (b2 * d3 - b3 * d2));
+    res.a4 = -invdet * (a2 * (b3 * c4 - b4 * c3) + a3 * (b4 * c2 - b2 * c4) + a4 * (b2 * c3 - b3 * c2));
+    res.b1 = -invdet * (b1 * (c3 * d4 - c4 * d3) + b3 * (c4 * d1 - c1 * d4) + b4 * (c1 * d3 - c3 * d1));
+    res.b2 = invdet  * (a1 * (c3 * d4 - c4 * d3) + a3 * (c4 * d1 - c1 * d4) + a4 * (c1 * d3 - c3 * d1));
+    res.b3 = -invdet * (a1 * (b3 * d4 - b4 * d3) + a3 * (b4 * d1 - b1 * d4) + a4 * (b1 * d3 - b3 * d1));
+    res.b4 = invdet  * (a1 * (b3 * c4 - b4 * c3) + a3 * (b4 * c1 - b1 * c4) + a4 * (b1 * c3 - b3 * c1));
+    res.c1 = invdet  * (b1 * (c2 * d4 - c4 * d2) + b2 * (c4 * d1 - c1 * d4) + b4 * (c1 * d2 - c2 * d1));
+    res.c2 = -invdet * (a1 * (c2 * d4 - c4 * d2) + a2 * (c4 * d1 - c1 * d4) + a4 * (c1 * d2 - c2 * d1));
+    res.c3 = invdet  * (a1 * (b2 * d4 - b4 * d2) + a2 * (b4 * d1 - b1 * d4) + a4 * (b1 * d2 - b2 * d1));
+    res.c4 = -invdet * (a1 * (b2 * c4 - b4 * c2) + a2 * (b4 * c1 - b1 * c4) + a4 * (b1 * c2 - b2 * c1));
+    res.d1 = -invdet * (b1 * (c2 * d3 - c3 * d2) + b2 * (c3 * d1 - c1 * d3) + b3 * (c1 * d2 - c2 * d1));
+    res.d2 = invdet  * (a1 * (c2 * d3 - c3 * d2) + a2 * (c3 * d1 - c1 * d3) + a3 * (c1 * d2 - c2 * d1));
+    res.d3 = -invdet * (a1 * (b2 * d3 - b3 * d2) + a2 * (b3 * d1 - b1 * d3) + a3 * (b1 * d2 - b2 * d1));
+    res.d4 = invdet  * (a1 * (b2 * c3 - b3 * c2) + a2 * (b3 * c1 - b1 * c3) + a3 * (b1 * c2 - b2 * c1));
+    *this = res;
+
+    return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline TReal* aiMatrix4x4t<TReal>::operator[](unsigned int p_iIndex) {
+    if (p_iIndex > 3) {
+        return NULL;
+    }
+    switch ( p_iIndex ) {
+        case 0:
+            return &a1;
+        case 1:
+            return &b1;
+        case 2:
+            return &c1;
+        case 3:
+            return &d1;
+        default:
+            break;
+    }
+    return &a1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline const TReal* aiMatrix4x4t<TReal>::operator[](unsigned int p_iIndex) const {
+    if (p_iIndex > 3) {
+        return NULL;
+    }
+
+    switch ( p_iIndex ) {
+        case 0:
+            return &a1;
+        case 1:
+            return &b1;
+        case 2:
+            return &c1;
+        case 3:
+            return &d1;
+        default:
+            break;
+    }
+    return &a1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline bool aiMatrix4x4t<TReal>::operator== (const aiMatrix4x4t<TReal>& m) const
+{
+    return (a1 == m.a1 && a2 == m.a2 && a3 == m.a3 && a4 == m.a4 &&
+            b1 == m.b1 && b2 == m.b2 && b3 == m.b3 && b4 == m.b4 &&
+            c1 == m.c1 && c2 == m.c2 && c3 == m.c3 && c4 == m.c4 &&
+            d1 == m.d1 && d2 == m.d2 && d3 == m.d3 && d4 == m.d4);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline bool aiMatrix4x4t<TReal>::operator!= (const aiMatrix4x4t<TReal>& m) const
+{
+    return !(*this == m);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline bool aiMatrix4x4t<TReal>::Equal(const aiMatrix4x4t<TReal>& m, TReal epsilon) const {
+    return
+        std::abs(a1 - m.a1) <= epsilon &&
+        std::abs(a2 - m.a2) <= epsilon &&
+        std::abs(a3 - m.a3) <= epsilon &&
+        std::abs(a4 - m.a4) <= epsilon &&
+        std::abs(b1 - m.b1) <= epsilon &&
+        std::abs(b2 - m.b2) <= epsilon &&
+        std::abs(b3 - m.b3) <= epsilon &&
+        std::abs(b4 - m.b4) <= epsilon &&
+        std::abs(c1 - m.c1) <= epsilon &&
+        std::abs(c2 - m.c2) <= epsilon &&
+        std::abs(c3 - m.c3) <= epsilon &&
+        std::abs(c4 - m.c4) <= epsilon &&
+        std::abs(d1 - m.d1) <= epsilon &&
+        std::abs(d2 - m.d2) <= epsilon &&
+        std::abs(d3 - m.d3) <= epsilon &&
+        std::abs(d4 - m.d4) <= epsilon;
+}
+
+// ----------------------------------------------------------------------------------------
+
+#define ASSIMP_MATRIX4_4_DECOMPOSE_PART		\
+	const aiMatrix4x4t<TReal>& _this = *this;/* Create alias for conveniance. */ \
+	\
+	/* extract translation */ \
+	pPosition.x = _this[0][3]; \
+	pPosition.y = _this[1][3]; \
+	pPosition.z = _this[2][3]; \
+	\
+	/* extract the columns of the matrix. */ \
+	aiVector3t<TReal> vCols[3] = { \
+		aiVector3t<TReal>(_this[0][0],_this[1][0],_this[2][0]), \
+		aiVector3t<TReal>(_this[0][1],_this[1][1],_this[2][1]), \
+		aiVector3t<TReal>(_this[0][2],_this[1][2],_this[2][2]) \
+	}; \
+	\
+	/* extract the scaling factors */ \
+	pScaling.x = vCols[0].Length(); \
+	pScaling.y = vCols[1].Length(); \
+	pScaling.z = vCols[2].Length(); \
+	\
+	/* and the sign of the scaling */ \
+	if (Determinant() < 0) pScaling = -pScaling; \
+	\
+	/* and remove all scaling from the matrix */ \
+	if(pScaling.x) vCols[0] /= pScaling.x; \
+	if(pScaling.y) vCols[1] /= pScaling.y; \
+	if(pScaling.z) vCols[2] /= pScaling.z; \
+	\
+	do {} while(false)
+
+
+
+
+template <typename TReal>
+inline void aiMatrix4x4t<TReal>::Decompose (aiVector3t<TReal>& pScaling, aiQuaterniont<TReal>& pRotation,
+    aiVector3t<TReal>& pPosition) const
+{
+	ASSIMP_MATRIX4_4_DECOMPOSE_PART;
+
+    // build a 3x3 rotation matrix
+    aiMatrix3x3t<TReal> m(vCols[0].x,vCols[1].x,vCols[2].x,
+        vCols[0].y,vCols[1].y,vCols[2].y,
+        vCols[0].z,vCols[1].z,vCols[2].z);
+
+    // and generate the rotation quaternion from it
+    pRotation = aiQuaterniont<TReal>(m);
+}
+
+template <typename TReal>
+inline void aiMatrix4x4t<TReal>::Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotation, aiVector3t<TReal>& pPosition) const
+{
+	ASSIMP_MATRIX4_4_DECOMPOSE_PART;
+
+    /*
+    assuming a right-handed coordinate system
+    and post-multiplication of column vectors,
+    the rotation matrix for an euler XYZ rotation is M = Rz * Ry * Rx.
+    combining gives:
+    
+        |  CE  BDE-AF  ADE+BF  0  |
+    M = |  CF  BDF+AE  ADF-BE  0  |
+        |  -D    CB      AC    0  |
+        |   0     0       0    1  |
+
+    where
+	A = cos(angle_x), B = sin(angle_x);
+	C = cos(angle_y), D = sin(angle_y);
+	E = cos(angle_z), F = sin(angle_z);
+	*/
+
+	// Use a small epsilon to solve floating-point inaccuracies
+    const TReal epsilon = 10e-3f;
+
+	pRotation.y  = std::asin(-vCols[0].z);// D. Angle around oY.
+
+	TReal C = std::cos(pRotation.y);
+
+	if(std::fabs(C) > epsilon)
+	{
+		// Finding angle around oX.
+		TReal tan_x = vCols[2].z / C;// A
+		TReal tan_y = vCols[1].z / C;// B
+
+		pRotation.x = std::atan2(tan_y, tan_x);
+		// Finding angle around oZ.
+		tan_x = vCols[0].x / C;// E
+		tan_y = vCols[0].y / C;// F
+		pRotation.z = std::atan2(tan_y, tan_x);
+	}
+	else
+	{// oY is fixed.
+		pRotation.x = 0;// Set angle around oX to 0. => A == 1, B == 0, C == 0, D == 1.
+
+		// And finding angle around oZ.
+		TReal tan_x =  vCols[1].y;// BDF+AE => E
+		TReal tan_y = -vCols[1].x;// BDE-AF => F
+
+		pRotation.z = std::atan2(tan_y, tan_x);
+	}
+}
+
+#undef ASSIMP_MATRIX4_4_DECOMPOSE_PART
+
+template <typename TReal>
+inline void aiMatrix4x4t<TReal>::Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotationAxis, TReal& pRotationAngle,
+											aiVector3t<TReal>& pPosition) const
+{
+aiQuaterniont<TReal> pRotation;
+
+	Decompose(pScaling, pRotation, pPosition);
+	pRotation.Normalize();
+
+	TReal angle_cos = pRotation.w;
+	TReal angle_sin = std::sqrt(1.0f - angle_cos * angle_cos);
+
+	pRotationAngle = std::acos(angle_cos) * 2;
+
+	// Use a small epsilon to solve floating-point inaccuracies
+    const TReal epsilon = 10e-3f;
+
+	if(std::fabs(angle_sin) < epsilon) angle_sin = 1;
+
+	pRotationAxis.x = pRotation.x / angle_sin;
+	pRotationAxis.y = pRotation.y / angle_sin;
+	pRotationAxis.z = pRotation.z / angle_sin;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline void aiMatrix4x4t<TReal>::DecomposeNoScaling (aiQuaterniont<TReal>& rotation,
+    aiVector3t<TReal>& position) const
+{
+    const aiMatrix4x4t<TReal>& _this = *this;
+
+    // extract translation
+    position.x = _this[0][3];
+    position.y = _this[1][3];
+    position.z = _this[2][3];
+
+    // extract rotation
+    rotation = aiQuaterniont<TReal>((aiMatrix3x3t<TReal>)_this);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::FromEulerAnglesXYZ(const aiVector3t<TReal>& blubb)
+{
+    return FromEulerAnglesXYZ(blubb.x,blubb.y,blubb.z);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::FromEulerAnglesXYZ(TReal x, TReal y, TReal z)
+{
+    aiMatrix4x4t<TReal>& _this = *this;
+
+    TReal cx = std::cos(x);
+    TReal sx = std::sin(x);
+    TReal cy = std::cos(y);
+    TReal sy = std::sin(y);
+    TReal cz = std::cos(z);
+    TReal sz = std::sin(z);
+
+    // mz*my*mx
+    _this.a1 = cz * cy;
+    _this.a2 = cz * sy * sx - sz * cx;
+    _this.a3 = sz * sx + cz * sy * cx;
+
+    _this.b1 = sz * cy;
+    _this.b2 = cz * cx + sz * sy * sx;
+    _this.b3 = sz * sy * cx - cz * sx;
+
+    _this.c1 = -sy;
+    _this.c2 = cy * sx;
+    _this.c3 = cy * cx;
+
+    return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline bool aiMatrix4x4t<TReal>::IsIdentity() const
+{
+    // Use a small epsilon to solve floating-point inaccuracies
+    const static TReal epsilon = 10e-3f;
+
+    return (a2 <= epsilon && a2 >= -epsilon &&
+            a3 <= epsilon && a3 >= -epsilon &&
+            a4 <= epsilon && a4 >= -epsilon &&
+            b1 <= epsilon && b1 >= -epsilon &&
+            b3 <= epsilon && b3 >= -epsilon &&
+            b4 <= epsilon && b4 >= -epsilon &&
+            c1 <= epsilon && c1 >= -epsilon &&
+            c2 <= epsilon && c2 >= -epsilon &&
+            c4 <= epsilon && c4 >= -epsilon &&
+            d1 <= epsilon && d1 >= -epsilon &&
+            d2 <= epsilon && d2 >= -epsilon &&
+            d3 <= epsilon && d3 >= -epsilon &&
+            a1 <= 1.f+epsilon && a1 >= 1.f-epsilon &&
+            b2 <= 1.f+epsilon && b2 >= 1.f-epsilon &&
+            c3 <= 1.f+epsilon && c3 >= 1.f-epsilon &&
+            d4 <= 1.f+epsilon && d4 >= 1.f-epsilon);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::RotationX(TReal a, aiMatrix4x4t<TReal>& out)
+{
+    /*
+         |  1  0       0       0 |
+     M = |  0  cos(A) -sin(A)  0 |
+         |  0  sin(A)  cos(A)  0 |
+         |  0  0       0       1 |  */
+    out = aiMatrix4x4t<TReal>();
+    out.b2 = out.c3 = std::cos(a);
+    out.b3 = -(out.c2 = std::sin(a));
+    return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::RotationY(TReal a, aiMatrix4x4t<TReal>& out)
+{
+    /*
+         |  cos(A)  0   sin(A)  0 |
+     M = |  0       1   0       0 |
+         | -sin(A)  0   cos(A)  0 |
+         |  0       0   0       1 |
+        */
+    out = aiMatrix4x4t<TReal>();
+    out.a1 = out.c3 = std::cos(a);
+    out.c1 = -(out.a3 = std::sin(a));
+    return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::RotationZ(TReal a, aiMatrix4x4t<TReal>& out)
+{
+    /*
+         |  cos(A)  -sin(A)   0   0 |
+     M = |  sin(A)   cos(A)   0   0 |
+         |  0        0        1   0 |
+         |  0        0        0   1 |   */
+    out = aiMatrix4x4t<TReal>();
+    out.a1 = out.b2 = std::cos(a);
+    out.a2 = -(out.b1 = std::sin(a));
+    return out;
+}
+
+// ----------------------------------------------------------------------------------------
+// Returns a rotation matrix for a rotation around an arbitrary axis.
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Rotation( TReal a, const aiVector3t<TReal>& axis, aiMatrix4x4t<TReal>& out)
+{
+  TReal c = std::cos( a), s = std::sin( a), t = 1 - c;
+  TReal x = axis.x, y = axis.y, z = axis.z;
+
+  // Many thanks to MathWorld and Wikipedia
+  out.a1 = t*x*x + c;   out.a2 = t*x*y - s*z; out.a3 = t*x*z + s*y;
+  out.b1 = t*x*y + s*z; out.b2 = t*y*y + c;   out.b3 = t*y*z - s*x;
+  out.c1 = t*x*z - s*y; out.c2 = t*y*z + s*x; out.c3 = t*z*z + c;
+  out.a4 = out.b4 = out.c4 = static_cast<TReal>(0.0);
+  out.d1 = out.d2 = out.d3 = static_cast<TReal>(0.0);
+  out.d4 = static_cast<TReal>(1.0);
+
+  return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Translation( const aiVector3t<TReal>& v, aiMatrix4x4t<TReal>& out)
+{
+    out = aiMatrix4x4t<TReal>();
+    out.a4 = v.x;
+    out.b4 = v.y;
+    out.c4 = v.z;
+    return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Scaling( const aiVector3t<TReal>& v, aiMatrix4x4t<TReal>& out)
+{
+    out = aiMatrix4x4t<TReal>();
+    out.a1 = v.x;
+    out.b2 = v.y;
+    out.c3 = v.z;
+    return out;
+}
+
+// ----------------------------------------------------------------------------------------
+/** A function for creating a rotation matrix that rotates a vector called
+ * "from" into another vector called "to".
+ * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+ * Output: mtx[3][3] -- a 3x3 matrix in colum-major form
+ * Authors: Tomas Möller, John Hughes
+ *          "Efficiently Building a Matrix to Rotate One Vector to Another"
+ *          Journal of Graphics Tools, 4(4):1-4, 1999
+ */
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+inline aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::FromToMatrix(const aiVector3t<TReal>& from,
+    const aiVector3t<TReal>& to, aiMatrix4x4t<TReal>& mtx)
+{
+    aiMatrix3x3t<TReal> m3;
+    aiMatrix3x3t<TReal>::FromToMatrix(from,to,m3);
+    mtx = aiMatrix4x4t<TReal>(m3);
+    return mtx;
+}
+
+#endif // __cplusplus
+#endif // AI_MATRIX4X4_INL_INC
diff --git a/thirdparty/assimp/include/assimp/mesh.h b/thirdparty/assimp/include/assimp/mesh.h
new file mode 100644
index 0000000000..36f3ed2afd
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/mesh.h
@@ -0,0 +1,852 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file mesh.h
+ *  @brief Declares the data structures in which the imported geometry is
+    returned by ASSIMP: aiMesh, aiFace and aiBone data structures.
+ */
+#pragma once
+#ifndef AI_MESH_H_INC
+#define AI_MESH_H_INC
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+// Limits. These values are required to match the settings Assimp was
+// compiled against. Therefore, do not redefine them unless you build the
+// library from source using the same definitions.
+// ---------------------------------------------------------------------------
+
+/** @def AI_MAX_FACE_INDICES
+ *  Maximum number of indices per face (polygon). */
+
+#ifndef AI_MAX_FACE_INDICES
+#   define AI_MAX_FACE_INDICES 0x7fff
+#endif
+
+/** @def AI_MAX_BONE_WEIGHTS
+ *  Maximum number of indices per face (polygon). */
+
+#ifndef AI_MAX_BONE_WEIGHTS
+#   define AI_MAX_BONE_WEIGHTS 0x7fffffff
+#endif
+
+/** @def AI_MAX_VERTICES
+ *  Maximum number of vertices per mesh.  */
+
+#ifndef AI_MAX_VERTICES
+#   define AI_MAX_VERTICES 0x7fffffff
+#endif
+
+/** @def AI_MAX_FACES
+ *  Maximum number of faces per mesh. */
+
+#ifndef AI_MAX_FACES
+#   define AI_MAX_FACES 0x7fffffff
+#endif
+
+/** @def AI_MAX_NUMBER_OF_COLOR_SETS
+ *  Supported number of vertex color sets per mesh. */
+
+#ifndef AI_MAX_NUMBER_OF_COLOR_SETS
+#   define AI_MAX_NUMBER_OF_COLOR_SETS 0x8
+#endif // !! AI_MAX_NUMBER_OF_COLOR_SETS
+
+/** @def AI_MAX_NUMBER_OF_TEXTURECOORDS
+ *  Supported number of texture coord sets (UV(W) channels) per mesh */
+
+#ifndef AI_MAX_NUMBER_OF_TEXTURECOORDS
+#   define AI_MAX_NUMBER_OF_TEXTURECOORDS 0x8
+#endif // !! AI_MAX_NUMBER_OF_TEXTURECOORDS
+
+// ---------------------------------------------------------------------------
+/** @brief A single face in a mesh, referring to multiple vertices.
+ *
+ * If mNumIndices is 3, we call the face 'triangle', for mNumIndices > 3
+ * it's called 'polygon' (hey, that's just a definition!).
+ * <br>
+ * aiMesh::mPrimitiveTypes can be queried to quickly examine which types of
+ * primitive are actually present in a mesh. The #aiProcess_SortByPType flag
+ * executes a special post-processing algorithm which splits meshes with
+ * *different* primitive types mixed up (e.g. lines and triangles) in several
+ * 'clean' submeshes. Furthermore there is a configuration option (
+ * #AI_CONFIG_PP_SBP_REMOVE) to force #aiProcess_SortByPType to remove
+ * specific kinds of primitives from the imported scene, completely and forever.
+ * In many cases you'll probably want to set this setting to
+ * @code
+ * aiPrimitiveType_LINE|aiPrimitiveType_POINT
+ * @endcode
+ * Together with the #aiProcess_Triangulate flag you can then be sure that
+ * #aiFace::mNumIndices is always 3.
+ * @note Take a look at the @link data Data Structures page @endlink for
+ * more information on the layout and winding order of a face.
+ */
+struct aiFace
+{
+    //! Number of indices defining this face.
+    //! The maximum value for this member is #AI_MAX_FACE_INDICES.
+    unsigned int mNumIndices;
+
+    //! Pointer to the indices array. Size of the array is given in numIndices.
+    unsigned int* mIndices;
+
+#ifdef __cplusplus
+
+    //! Default constructor
+    aiFace() AI_NO_EXCEPT
+    : mNumIndices( 0 )
+    , mIndices( nullptr ) {
+        // empty
+    }
+
+    //! Default destructor. Delete the index array
+    ~aiFace()
+    {
+        delete [] mIndices;
+    }
+
+    //! Copy constructor. Copy the index array
+    aiFace( const aiFace& o)
+    : mNumIndices(0)
+    , mIndices( nullptr ) {
+        *this = o;
+    }
+
+    //! Assignment operator. Copy the index array
+    aiFace& operator = ( const aiFace& o) {
+        if (&o == this) {
+            return *this;
+        }
+
+        delete[] mIndices;
+        mNumIndices = o.mNumIndices;
+        if (mNumIndices) {
+            mIndices = new unsigned int[mNumIndices];
+            ::memcpy( mIndices, o.mIndices, mNumIndices * sizeof( unsigned int));
+        } else {
+            mIndices = nullptr;
+        }
+
+        return *this;
+    }
+
+    //! Comparison operator. Checks whether the index array
+    //! of two faces is identical
+    bool operator== (const aiFace& o) const {
+        if (mIndices == o.mIndices) {
+            return true;
+        }
+
+        if (nullptr != mIndices && mNumIndices != o.mNumIndices) {
+            return false;
+        }
+
+        if (nullptr == mIndices) {
+            return false;
+        }
+
+        for (unsigned int i = 0; i < this->mNumIndices; ++i) {
+            if (mIndices[i] != o.mIndices[i]) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    //! Inverse comparison operator. Checks whether the index
+    //! array of two faces is NOT identical
+    bool operator != (const aiFace& o) const {
+        return !(*this == o);
+    }
+#endif // __cplusplus
+}; // struct aiFace
+
+
+// ---------------------------------------------------------------------------
+/** @brief A single influence of a bone on a vertex.
+ */
+struct aiVertexWeight {
+    //! Index of the vertex which is influenced by the bone.
+    unsigned int mVertexId;
+
+    //! The strength of the influence in the range (0...1).
+    //! The influence from all bones at one vertex amounts to 1.
+    float mWeight;
+
+#ifdef __cplusplus
+
+    //! Default constructor
+    aiVertexWeight() AI_NO_EXCEPT
+    : mVertexId(0)
+    , mWeight(0.0f) {
+        // empty
+    }
+
+    //! Initialization from a given index and vertex weight factor
+    //! \param pID ID
+    //! \param pWeight Vertex weight factor
+    aiVertexWeight( unsigned int pID, float pWeight )
+    : mVertexId( pID )
+    , mWeight( pWeight ) {
+        // empty
+    }
+
+    bool operator == ( const aiVertexWeight &rhs ) const {
+        return ( mVertexId == rhs.mVertexId && mWeight == rhs.mWeight );
+    }
+
+    bool operator != ( const aiVertexWeight &rhs ) const {
+        return ( *this == rhs );
+    }
+
+#endif // __cplusplus
+};
+
+
+// ---------------------------------------------------------------------------
+/** @brief A single bone of a mesh.
+ *
+ *  A bone has a name by which it can be found in the frame hierarchy and by
+ *  which it can be addressed by animations. In addition it has a number of
+ *  influences on vertices, and a matrix relating the mesh position to the
+ *  position of the bone at the time of binding.
+ */
+struct aiBone {
+    //! The name of the bone.
+    C_STRUCT aiString mName;
+
+    //! The number of vertices affected by this bone.
+    //! The maximum value for this member is #AI_MAX_BONE_WEIGHTS.
+    unsigned int mNumWeights;
+
+    //! The influence weights of this bone, by vertex index.
+    C_STRUCT aiVertexWeight* mWeights;
+
+    /** Matrix that transforms from bone space to mesh space in bind pose.
+     *
+     * This matrix describes the position of the mesh
+     * in the local space of this bone when the skeleton was bound.
+     * Thus it can be used directly to determine a desired vertex position,
+     * given the world-space transform of the bone when animated,
+     * and the position of the vertex in mesh space.
+     *
+     * It is sometimes called an inverse-bind matrix,
+     * or inverse bind pose matrix.
+     */
+    C_STRUCT aiMatrix4x4 mOffsetMatrix;
+
+#ifdef __cplusplus
+
+    //! Default constructor
+    aiBone() AI_NO_EXCEPT
+    : mName()
+    , mNumWeights( 0 )
+    , mWeights( nullptr )
+    , mOffsetMatrix() {
+        // empty
+    }
+
+    //! Copy constructor
+    aiBone(const aiBone& other)
+    : mName( other.mName )
+    , mNumWeights( other.mNumWeights )
+    , mWeights(nullptr)
+    , mOffsetMatrix( other.mOffsetMatrix ) {
+        if (other.mWeights && other.mNumWeights) {
+            mWeights = new aiVertexWeight[mNumWeights];
+            ::memcpy(mWeights,other.mWeights,mNumWeights * sizeof(aiVertexWeight));
+        }
+    }
+
+
+    //! Assignment operator
+    aiBone &operator=(const aiBone& other) {
+        if (this == &other) {
+            return *this;
+        }
+
+        mName         = other.mName;
+        mNumWeights   = other.mNumWeights;
+        mOffsetMatrix = other.mOffsetMatrix;
+
+        if (other.mWeights && other.mNumWeights)
+        {
+            if (mWeights) {
+                delete[] mWeights;
+            }
+
+            mWeights = new aiVertexWeight[mNumWeights];
+            ::memcpy(mWeights,other.mWeights,mNumWeights * sizeof(aiVertexWeight));
+        }
+
+        return *this;
+    }
+
+    bool operator == ( const aiBone &rhs ) const {
+        if ( mName != rhs.mName || mNumWeights != rhs.mNumWeights ) {
+            return false;
+        }
+
+        for ( size_t i = 0; i < mNumWeights; ++i ) {
+            if ( mWeights[ i ] != rhs.mWeights[ i ] ) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+    //! Destructor - deletes the array of vertex weights
+    ~aiBone() {
+        delete [] mWeights;
+    }
+#endif // __cplusplus
+};
+
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates the types of geometric primitives supported by Assimp.
+ *
+ *  @see aiFace Face data structure
+ *  @see aiProcess_SortByPType Per-primitive sorting of meshes
+ *  @see aiProcess_Triangulate Automatic triangulation
+ *  @see AI_CONFIG_PP_SBP_REMOVE Removal of specific primitive types.
+ */
+enum aiPrimitiveType
+{
+    /** A point primitive.
+     *
+     * This is just a single vertex in the virtual world,
+     * #aiFace contains just one index for such a primitive.
+     */
+    aiPrimitiveType_POINT       = 0x1,
+
+    /** A line primitive.
+     *
+     * This is a line defined through a start and an end position.
+     * #aiFace contains exactly two indices for such a primitive.
+     */
+    aiPrimitiveType_LINE        = 0x2,
+
+    /** A triangular primitive.
+     *
+     * A triangle consists of three indices.
+     */
+    aiPrimitiveType_TRIANGLE    = 0x4,
+
+    /** A higher-level polygon with more than 3 edges.
+     *
+     * A triangle is a polygon, but polygon in this context means
+     * "all polygons that are not triangles". The "Triangulate"-Step
+     * is provided for your convenience, it splits all polygons in
+     * triangles (which are much easier to handle).
+     */
+    aiPrimitiveType_POLYGON     = 0x8,
+
+
+    /** This value is not used. It is just here to force the
+     *  compiler to map this enum to a 32 Bit integer.
+     */
+#ifndef SWIG
+    _aiPrimitiveType_Force32Bit = INT_MAX
+#endif
+}; //! enum aiPrimitiveType
+
+// Get the #aiPrimitiveType flag for a specific number of face indices
+#define AI_PRIMITIVE_TYPE_FOR_N_INDICES(n) \
+    ((n) > 3 ? aiPrimitiveType_POLYGON : (aiPrimitiveType)(1u << ((n)-1)))
+
+
+
+// ---------------------------------------------------------------------------
+/** @brief An AnimMesh is an attachment to an #aiMesh stores per-vertex
+ *  animations for a particular frame.
+ *
+ *  You may think of an #aiAnimMesh as a `patch` for the host mesh, which
+ *  replaces only certain vertex data streams at a particular time.
+ *  Each mesh stores n attached attached meshes (#aiMesh::mAnimMeshes).
+ *  The actual relationship between the time line and anim meshes is
+ *  established by #aiMeshAnim, which references singular mesh attachments
+ *  by their ID and binds them to a time offset.
+*/
+struct aiAnimMesh
+{
+    /**Anim Mesh name */
+    C_STRUCT aiString mName;
+
+    /** Replacement for aiMesh::mVertices. If this array is non-NULL,
+     *  it *must* contain mNumVertices entries. The corresponding
+     *  array in the host mesh must be non-NULL as well - animation
+     *  meshes may neither add or nor remove vertex components (if
+     *  a replacement array is NULL and the corresponding source
+     *  array is not, the source data is taken instead)*/
+    C_STRUCT aiVector3D* mVertices;
+
+    /** Replacement for aiMesh::mNormals.  */
+    C_STRUCT aiVector3D* mNormals;
+
+    /** Replacement for aiMesh::mTangents. */
+    C_STRUCT aiVector3D* mTangents;
+
+    /** Replacement for aiMesh::mBitangents. */
+    C_STRUCT aiVector3D* mBitangents;
+
+    /** Replacement for aiMesh::mColors */
+    C_STRUCT aiColor4D* mColors[AI_MAX_NUMBER_OF_COLOR_SETS];
+
+    /** Replacement for aiMesh::mTextureCoords */
+    C_STRUCT aiVector3D* mTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+
+    /** The number of vertices in the aiAnimMesh, and thus the length of all
+     * the member arrays.
+     *
+     * This has always the same value as the mNumVertices property in the
+     * corresponding aiMesh. It is duplicated here merely to make the length
+     * of the member arrays accessible even if the aiMesh is not known, e.g.
+     * from language bindings.
+     */
+    unsigned int mNumVertices;
+    
+    /** 
+     * Weight of the AnimMesh. 
+     */
+    float mWeight;
+
+#ifdef __cplusplus
+
+    aiAnimMesh() AI_NO_EXCEPT
+        : mVertices( nullptr )
+        , mNormals(nullptr)
+        , mTangents(nullptr)
+        , mBitangents(nullptr)
+        , mColors()
+        , mTextureCoords()
+        , mNumVertices( 0 )
+        , mWeight( 0.0f )
+    {
+        // fixme consider moving this to the ctor initializer list as well
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++){
+            mTextureCoords[a] = nullptr;
+        }
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
+            mColors[a] = nullptr;
+        }
+    }
+
+    ~aiAnimMesh()
+    {
+        delete [] mVertices;
+        delete [] mNormals;
+        delete [] mTangents;
+        delete [] mBitangents;
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) {
+            delete [] mTextureCoords[a];
+        }
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
+            delete [] mColors[a];
+        }
+    }
+
+    /** Check whether the anim mesh overrides the vertex positions
+     *  of its host mesh*/
+    bool HasPositions() const {
+        return mVertices != nullptr;
+    }
+
+    /** Check whether the anim mesh overrides the vertex normals
+     *  of its host mesh*/
+    bool HasNormals() const {
+        return mNormals != nullptr;
+    }
+
+    /** Check whether the anim mesh overrides the vertex tangents
+     *  and bitangents of its host mesh. As for aiMesh,
+     *  tangents and bitangents always go together. */
+    bool HasTangentsAndBitangents() const {
+        return mTangents != nullptr;
+    }
+
+    /** Check whether the anim mesh overrides a particular
+     * set of vertex colors on his host mesh.
+     *  @param pIndex 0<index<AI_MAX_NUMBER_OF_COLOR_SETS */
+    bool HasVertexColors( unsigned int pIndex) const    {
+        return pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS ? false : mColors[pIndex] != nullptr;
+    }
+
+    /** Check whether the anim mesh overrides a particular
+     * set of texture coordinates on his host mesh.
+     *  @param pIndex 0<index<AI_MAX_NUMBER_OF_TEXTURECOORDS */
+    bool HasTextureCoords( unsigned int pIndex) const   {
+        return pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? false : mTextureCoords[pIndex] != nullptr;
+    }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates the methods of mesh morphing supported by Assimp.
+ */
+enum aiMorphingMethod
+{
+    /** Interpolation between morph targets */
+    aiMorphingMethod_VERTEX_BLEND       = 0x1,
+
+    /** Normalized morphing between morph targets  */
+    aiMorphingMethod_MORPH_NORMALIZED   = 0x2,
+
+    /** Relative morphing between morph targets  */
+    aiMorphingMethod_MORPH_RELATIVE     = 0x3,
+
+    /** This value is not used. It is just here to force the
+     *  compiler to map this enum to a 32 Bit integer.
+     */
+#ifndef SWIG
+    _aiMorphingMethod_Force32Bit = INT_MAX
+#endif
+}; //! enum aiMorphingMethod
+
+// ---------------------------------------------------------------------------
+/** @brief A mesh represents a geometry or model with a single material.
+*
+* It usually consists of a number of vertices and a series of primitives/faces
+* referencing the vertices. In addition there might be a series of bones, each
+* of them addressing a number of vertices with a certain weight. Vertex data
+* is presented in channels with each channel containing a single per-vertex
+* information such as a set of texture coords or a normal vector.
+* If a data pointer is non-null, the corresponding data stream is present.
+* From C++-programs you can also use the comfort functions Has*() to
+* test for the presence of various data streams.
+*
+* A Mesh uses only a single material which is referenced by a material ID.
+* @note The mPositions member is usually not optional. However, vertex positions
+* *could* be missing if the #AI_SCENE_FLAGS_INCOMPLETE flag is set in
+* @code
+* aiScene::mFlags
+* @endcode
+*/
+struct aiMesh
+{
+    /** Bitwise combination of the members of the #aiPrimitiveType enum.
+     * This specifies which types of primitives are present in the mesh.
+     * The "SortByPrimitiveType"-Step can be used to make sure the
+     * output meshes consist of one primitive type each.
+     */
+    unsigned int mPrimitiveTypes;
+
+    /** The number of vertices in this mesh.
+    * This is also the size of all of the per-vertex data arrays.
+    * The maximum value for this member is #AI_MAX_VERTICES.
+    */
+    unsigned int mNumVertices;
+
+    /** The number of primitives (triangles, polygons, lines) in this  mesh.
+    * This is also the size of the mFaces array.
+    * The maximum value for this member is #AI_MAX_FACES.
+    */
+    unsigned int mNumFaces;
+
+    /** Vertex positions.
+    * This array is always present in a mesh. The array is
+    * mNumVertices in size.
+    */
+    C_STRUCT aiVector3D* mVertices;
+
+    /** Vertex normals.
+    * The array contains normalized vectors, NULL if not present.
+    * The array is mNumVertices in size. Normals are undefined for
+    * point and line primitives. A mesh consisting of points and
+    * lines only may not have normal vectors. Meshes with mixed
+    * primitive types (i.e. lines and triangles) may have normals,
+    * but the normals for vertices that are only referenced by
+    * point or line primitives are undefined and set to QNaN (WARN:
+    * qNaN compares to inequal to *everything*, even to qNaN itself.
+    * Using code like this to check whether a field is qnan is:
+    * @code
+    * #define IS_QNAN(f) (f != f)
+    * @endcode
+    * still dangerous because even 1.f == 1.f could evaluate to false! (
+    * remember the subtleties of IEEE754 artithmetics). Use stuff like
+    * @c fpclassify instead.
+    * @note Normal vectors computed by Assimp are always unit-length.
+    * However, this needn't apply for normals that have been taken
+    *   directly from the model file.
+    */
+    C_STRUCT aiVector3D* mNormals;
+
+    /** Vertex tangents.
+    * The tangent of a vertex points in the direction of the positive
+    * X texture axis. The array contains normalized vectors, NULL if
+    * not present. The array is mNumVertices in size. A mesh consisting
+    * of points and lines only may not have normal vectors. Meshes with
+    * mixed primitive types (i.e. lines and triangles) may have
+    * normals, but the normals for vertices that are only referenced by
+    * point or line primitives are undefined and set to qNaN.  See
+    * the #mNormals member for a detailed discussion of qNaNs.
+    * @note If the mesh contains tangents, it automatically also
+    * contains bitangents.
+    */
+    C_STRUCT aiVector3D* mTangents;
+
+    /** Vertex bitangents.
+    * The bitangent of a vertex points in the direction of the positive
+    * Y texture axis. The array contains normalized vectors, NULL if not
+    * present. The array is mNumVertices in size.
+    * @note If the mesh contains tangents, it automatically also contains
+    * bitangents.
+    */
+    C_STRUCT aiVector3D* mBitangents;
+
+    /** Vertex color sets.
+    * A mesh may contain 0 to #AI_MAX_NUMBER_OF_COLOR_SETS vertex
+    * colors per vertex. NULL if not present. Each array is
+    * mNumVertices in size if present.
+    */
+    C_STRUCT aiColor4D* mColors[AI_MAX_NUMBER_OF_COLOR_SETS];
+
+    /** Vertex texture coords, also known as UV channels.
+    * A mesh may contain 0 to AI_MAX_NUMBER_OF_TEXTURECOORDS per
+    * vertex. NULL if not present. The array is mNumVertices in size.
+    */
+    C_STRUCT aiVector3D* mTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+
+    /** Specifies the number of components for a given UV channel.
+    * Up to three channels are supported (UVW, for accessing volume
+    * or cube maps). If the value is 2 for a given channel n, the
+    * component p.z of mTextureCoords[n][p] is set to 0.0f.
+    * If the value is 1 for a given channel, p.y is set to 0.0f, too.
+    * @note 4D coords are not supported
+    */
+    unsigned int mNumUVComponents[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+
+    /** The faces the mesh is constructed from.
+    * Each face refers to a number of vertices by their indices.
+    * This array is always present in a mesh, its size is given
+    * in mNumFaces. If the #AI_SCENE_FLAGS_NON_VERBOSE_FORMAT
+    * is NOT set each face references an unique set of vertices.
+    */
+    C_STRUCT aiFace* mFaces;
+
+    /** The number of bones this mesh contains.
+    * Can be 0, in which case the mBones array is NULL.
+    */
+    unsigned int mNumBones;
+
+    /** The bones of this mesh.
+    * A bone consists of a name by which it can be found in the
+    * frame hierarchy and a set of vertex weights.
+    */
+    C_STRUCT aiBone** mBones;
+
+    /** The material used by this mesh.
+     * A mesh uses only a single material. If an imported model uses
+     * multiple materials, the import splits up the mesh. Use this value
+     * as index into the scene's material list.
+     */
+    unsigned int mMaterialIndex;
+
+    /** Name of the mesh. Meshes can be named, but this is not a
+     *  requirement and leaving this field empty is totally fine.
+     *  There are mainly three uses for mesh names:
+     *   - some formats name nodes and meshes independently.
+     *   - importers tend to split meshes up to meet the
+     *      one-material-per-mesh requirement. Assigning
+     *      the same (dummy) name to each of the result meshes
+     *      aids the caller at recovering the original mesh
+     *      partitioning.
+     *   - Vertex animations refer to meshes by their names.
+     **/
+    C_STRUCT aiString mName;
+
+
+    /** The number of attachment meshes. Note! Currently only works with Collada loader. */
+    unsigned int mNumAnimMeshes;
+
+    /** Attachment meshes for this mesh, for vertex-based animation.
+     *  Attachment meshes carry replacement data for some of the
+     *  mesh'es vertex components (usually positions, normals).
+     *  Note! Currently only works with Collada loader.*/
+    C_STRUCT aiAnimMesh** mAnimMeshes;
+
+    /** 
+     *  Method of morphing when animeshes are specified. 
+     */
+    unsigned int mMethod;
+	
+#ifdef __cplusplus
+
+    //! Default constructor. Initializes all members to 0
+    aiMesh() AI_NO_EXCEPT
+    : mPrimitiveTypes( 0 )
+    , mNumVertices( 0 )
+    , mNumFaces( 0 )
+    , mVertices( nullptr )
+    , mNormals(nullptr)
+    , mTangents(nullptr)
+    , mBitangents(nullptr)
+    , mColors()
+    , mTextureCoords()
+    , mNumUVComponents()
+    , mFaces(nullptr)
+    , mNumBones( 0 )
+    , mBones(nullptr)
+    , mMaterialIndex( 0 )
+    , mNumAnimMeshes( 0 )
+    , mAnimMeshes(nullptr)
+    , mMethod( 0 ) {
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a ) {
+            mNumUVComponents[a] = 0;
+            mTextureCoords[a] = nullptr;
+        }
+
+        for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; ++a) {
+            mColors[a] = nullptr;
+        }
+    }
+
+    //! Deletes all storage allocated for the mesh
+    ~aiMesh() {
+        delete [] mVertices;
+        delete [] mNormals;
+        delete [] mTangents;
+        delete [] mBitangents;
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) {
+            delete [] mTextureCoords[a];
+        }
+        for( unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
+            delete [] mColors[a];
+        }
+
+        // DO NOT REMOVE THIS ADDITIONAL CHECK
+        if (mNumBones && mBones)    {
+            for( unsigned int a = 0; a < mNumBones; a++) {
+                delete mBones[a];
+            }
+            delete [] mBones;
+        }
+
+        if (mNumAnimMeshes && mAnimMeshes)  {
+            for( unsigned int a = 0; a < mNumAnimMeshes; a++) {
+                delete mAnimMeshes[a];
+            }
+            delete [] mAnimMeshes;
+        }
+
+        delete [] mFaces;
+    }
+
+    //! Check whether the mesh contains positions. Provided no special
+    //! scene flags are set, this will always be true
+    bool HasPositions() const
+        { return mVertices != nullptr && mNumVertices > 0; }
+
+    //! Check whether the mesh contains faces. If no special scene flags
+    //! are set this should always return true
+    bool HasFaces() const
+        { return mFaces != nullptr && mNumFaces > 0; }
+
+    //! Check whether the mesh contains normal vectors
+    bool HasNormals() const
+        { return mNormals != nullptr && mNumVertices > 0; }
+
+    //! Check whether the mesh contains tangent and bitangent vectors
+    //! It is not possible that it contains tangents and no bitangents
+    //! (or the other way round). The existence of one of them
+    //! implies that the second is there, too.
+    bool HasTangentsAndBitangents() const
+        { return mTangents != nullptr && mBitangents != nullptr && mNumVertices > 0; }
+
+    //! Check whether the mesh contains a vertex color set
+    //! \param pIndex Index of the vertex color set
+    bool HasVertexColors( unsigned int pIndex) const {
+        if (pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS) {
+            return false;
+        } else {
+            return mColors[pIndex] != nullptr && mNumVertices > 0;
+        }
+    }
+
+    //! Check whether the mesh contains a texture coordinate set
+    //! \param pIndex Index of the texture coordinates set
+    bool HasTextureCoords( unsigned int pIndex) const {
+        if (pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+            return false;
+        } else {
+            return mTextureCoords[pIndex] != nullptr && mNumVertices > 0;
+        }
+    }
+
+    //! Get the number of UV channels the mesh contains
+    unsigned int GetNumUVChannels() const {
+        unsigned int n( 0 );
+        while (n < AI_MAX_NUMBER_OF_TEXTURECOORDS && mTextureCoords[n]) {
+            ++n;
+        }
+
+        return n;
+    }
+
+    //! Get the number of vertex color channels the mesh contains
+    unsigned int GetNumColorChannels() const {
+        unsigned int n(0);
+        while (n < AI_MAX_NUMBER_OF_COLOR_SETS && mColors[n]) {
+            ++n;
+        }
+        return n;
+    }
+
+    //! Check whether the mesh contains bones
+    bool HasBones() const {
+        return mBones != nullptr && mNumBones > 0;
+    }
+
+#endif // __cplusplus
+};
+
+#ifdef __cplusplus
+}
+#endif //! extern "C"
+#endif // AI_MESH_H_INC
+
diff --git a/thirdparty/assimp/include/assimp/metadata.h b/thirdparty/assimp/include/assimp/metadata.h
new file mode 100644
index 0000000000..3a1dd1442a
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/metadata.h
@@ -0,0 +1,380 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file metadata.h
+ *  @brief Defines the data structures for holding node meta information.
+ */
+#pragma once
+#ifndef AI_METADATA_H_INC
+#define AI_METADATA_H_INC
+
+#if defined(_MSC_VER) && (_MSC_VER <= 1500)
+#  include "Compiler/pstdint.h"
+#else
+#  include <stdint.h>
+#endif
+
+// -------------------------------------------------------------------------------
+/**
+  * Enum used to distinguish data types
+  */
+ // -------------------------------------------------------------------------------
+typedef enum aiMetadataType {
+    AI_BOOL       = 0,
+    AI_INT32      = 1,
+    AI_UINT64     = 2,
+    AI_FLOAT      = 3,
+    AI_DOUBLE     = 4,
+    AI_AISTRING   = 5,
+    AI_AIVECTOR3D = 6,
+    AI_META_MAX   = 7,
+
+#ifndef SWIG
+    FORCE_32BIT = INT_MAX
+#endif
+} aiMetadataType;
+
+// -------------------------------------------------------------------------------
+/**
+  * Metadata entry
+  *
+  * The type field uniquely identifies the underlying type of the data field
+  */
+ // -------------------------------------------------------------------------------
+struct aiMetadataEntry {
+    aiMetadataType mType;
+    void* mData;
+};
+
+#ifdef __cplusplus
+
+#include <string>
+
+// -------------------------------------------------------------------------------
+/**
+  * Helper functions to get the aiType enum entry for a type
+  */
+ // -------------------------------------------------------------------------------
+
+inline aiMetadataType GetAiType( bool )       { return AI_BOOL; }
+inline aiMetadataType GetAiType( int32_t )    { return AI_INT32; }
+inline aiMetadataType GetAiType( uint64_t )   { return AI_UINT64; }
+inline aiMetadataType GetAiType( float )      { return AI_FLOAT; }
+inline aiMetadataType GetAiType( double )     { return AI_DOUBLE; }
+inline aiMetadataType GetAiType( const aiString & )   { return AI_AISTRING; }
+inline aiMetadataType GetAiType( const aiVector3D & ) { return AI_AIVECTOR3D; }
+
+#endif // __cplusplus
+
+// -------------------------------------------------------------------------------
+/**
+  * Container for holding metadata.
+  *
+  * Metadata is a key-value store using string keys and values.
+  */
+ // -------------------------------------------------------------------------------
+struct aiMetadata {
+    /** Length of the mKeys and mValues arrays, respectively */
+    unsigned int mNumProperties;
+
+    /** Arrays of keys, may not be NULL. Entries in this array may not be NULL as well. */
+    C_STRUCT aiString* mKeys;
+
+    /** Arrays of values, may not be NULL. Entries in this array may be NULL if the
+      * corresponding property key has no assigned value. */
+    C_STRUCT aiMetadataEntry* mValues;
+
+#ifdef __cplusplus
+
+    /** 
+     *  @brief  The default constructor, set all members to zero by default.
+     */
+    aiMetadata() AI_NO_EXCEPT
+    : mNumProperties(0)
+    , mKeys(nullptr)
+    , mValues(nullptr) {
+        // empty
+    }
+
+    aiMetadata( const aiMetadata &rhs )
+    : mNumProperties( rhs.mNumProperties )
+    , mKeys( nullptr )
+    , mValues( nullptr ) {
+        mKeys = new aiString[ mNumProperties ];
+        for ( size_t i = 0; i < static_cast<size_t>( mNumProperties ); ++i ) {
+            mKeys[ i ] = rhs.mKeys[ i ];
+        }
+        mValues = new aiMetadataEntry[ mNumProperties ];
+        for ( size_t i = 0; i < static_cast<size_t>(mNumProperties); ++i ) {
+            mValues[ i ].mType = rhs.mValues[ i ].mType;
+            switch ( rhs.mValues[ i ].mType ) {
+            case AI_BOOL:
+                mValues[ i ].mData = new bool;
+                ::memcpy( mValues[ i ].mData, rhs.mValues[ i ].mData, sizeof(bool) );
+                break;
+            case AI_INT32: {
+                int32_t v;
+                ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( int32_t ) );
+                mValues[ i ].mData = new int32_t( v );
+                }
+                break;
+            case AI_UINT64: {
+                    uint64_t v;
+                    ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( uint64_t ) );
+                    mValues[ i ].mData = new  uint64_t( v );
+                }
+                break;
+            case AI_FLOAT: {
+                    float v;
+                    ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( float ) );
+                    mValues[ i ].mData = new float( v );
+                }
+                break;
+            case AI_DOUBLE: {
+                    double v;
+                    ::memcpy( &v, rhs.mValues[ i ].mData, sizeof( double ) );
+                    mValues[ i ].mData = new double( v );
+                }
+                break;
+            case AI_AISTRING: {
+                    aiString v;
+                    rhs.Get<aiString>( mKeys[ i ], v );
+                    mValues[ i ].mData = new aiString( v );
+                }
+                break;
+            case AI_AIVECTOR3D: {
+                    aiVector3D v;
+                    rhs.Get<aiVector3D>( mKeys[ i ], v );
+                    mValues[ i ].mData = new aiVector3D( v );
+                }
+                break;
+#ifndef SWIG
+            case FORCE_32BIT:
+#endif
+            default:
+                break;
+            }
+
+        }
+    }
+
+    /** 
+     *  @brief The destructor.
+     */
+    ~aiMetadata() {
+        delete [] mKeys;
+        mKeys = nullptr;
+        if (mValues) {
+            // Delete each metadata entry
+            for (unsigned i=0; i<mNumProperties; ++i) {
+                void* data = mValues[i].mData;
+                switch (mValues[i].mType) {
+                case AI_BOOL:
+                    delete static_cast< bool* >( data );
+                    break;
+                case AI_INT32:
+                    delete static_cast< int32_t* >( data );
+                    break;
+                case AI_UINT64:
+                    delete static_cast< uint64_t* >( data );
+                    break;
+                case AI_FLOAT:
+                    delete static_cast< float* >( data );
+                    break;
+                case AI_DOUBLE:
+                    delete static_cast< double* >( data );
+                    break;
+                case AI_AISTRING:
+                    delete static_cast< aiString* >( data );
+                    break;
+                case AI_AIVECTOR3D:
+                    delete static_cast< aiVector3D* >( data );
+                    break;
+#ifndef SWIG
+                case FORCE_32BIT:
+#endif
+                default:
+                    break;
+                }
+            }
+
+            // Delete the metadata array
+            delete [] mValues;
+            mValues = nullptr;
+        }
+    }
+
+    /**
+     *  @brief Allocates property fields + keys.
+     *  @param  numProperties   Number of requested properties.
+     */
+    static inline
+    aiMetadata *Alloc( unsigned int numProperties ) {
+        if ( 0 == numProperties ) {
+            return nullptr;
+        }
+
+        aiMetadata *data = new aiMetadata;
+        data->mNumProperties = numProperties;
+        data->mKeys = new aiString[ data->mNumProperties ]();
+        data->mValues = new aiMetadataEntry[ data->mNumProperties ]();
+
+        return data;
+    }
+
+    /**
+     *  @brief Deallocates property fields + keys.
+     */
+    static inline
+    void Dealloc( aiMetadata *metadata ) {
+        delete metadata;
+    }
+
+	template<typename T>
+	inline
+    void Add(const std::string& key, const T& value) {
+		aiString* new_keys = new aiString[mNumProperties + 1];
+		aiMetadataEntry* new_values = new aiMetadataEntry[mNumProperties + 1];
+
+		for(unsigned int i = 0; i < mNumProperties; ++i)
+		{
+			new_keys[i] = mKeys[i];
+			new_values[i] = mValues[i];
+		}
+
+		delete mKeys;
+		delete mValues;
+
+		mKeys = new_keys;
+		mValues = new_values;
+
+		mNumProperties++;
+
+		Set(mNumProperties - 1, key, value);
+	}
+
+    template<typename T>
+    inline 
+    bool Set( unsigned index, const std::string& key, const T& value ) {
+        // In range assertion
+        if ( index >= mNumProperties ) {
+            return false;
+        }
+
+        // Ensure that we have a valid key.
+        if ( key.empty() ) {
+            return false;
+        }
+
+        // Set metadata key
+        mKeys[index] = key;
+
+        // Set metadata type
+        mValues[index].mType = GetAiType(value);
+        // Copy the given value to the dynamic storage
+        mValues[index].mData = new T(value);
+
+        return true;
+    }
+
+    template<typename T>
+    inline 
+    bool Get( unsigned index, T& value ) const {
+        // In range assertion
+        if ( index >= mNumProperties ) {
+            return false;
+        }
+
+        // Return false if the output data type does
+        // not match the found value's data type
+        if ( GetAiType( value ) != mValues[ index ].mType ) {
+            return false;
+        }
+
+        // Otherwise, output the found value and
+        // return true
+        value = *static_cast<T*>(mValues[index].mData);
+
+        return true;
+    }
+
+    template<typename T>
+    inline 
+    bool Get( const aiString& key, T& value ) const {
+        // Search for the given key
+        for ( unsigned int i = 0; i < mNumProperties; ++i ) {
+            if ( mKeys[ i ] == key ) {
+                return Get( i, value );
+            }
+        }
+        return false;
+    }
+
+    template<typename T>
+    inline
+    bool Get( const std::string& key, T& value ) const {
+        return Get(aiString(key), value);
+    }
+
+	/// Return metadata entry for analyzing it by user.
+	/// \param [in] pIndex - index of the entry.
+	/// \param [out] pKey - pointer to the key value.
+	/// \param [out] pEntry - pointer to the entry: type and value.
+	/// \return false - if pIndex is out of range, else - true.
+	inline
+    bool Get(size_t index, const aiString*& key, const aiMetadataEntry*& entry) const {
+        if ( index >= mNumProperties ) {
+            return false;
+        }
+
+		key = &mKeys[index];
+		entry = &mValues[index];
+
+		return true;
+	}
+
+#endif // __cplusplus
+
+};
+
+#endif // AI_METADATA_H_INC
diff --git a/thirdparty/assimp/include/assimp/pbrmaterial.h b/thirdparty/assimp/include/assimp/pbrmaterial.h
new file mode 100644
index 0000000000..ce5f822173
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/pbrmaterial.h
@@ -0,0 +1,77 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file pbrmaterial.h
+ *  @brief Defines the material system of the library
+ */
+#ifndef AI_PBRMATERIAL_H_INC
+#define AI_PBRMATERIAL_H_INC
+
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR "$mat.gltf.pbrMetallicRoughness.baseColorFactor", 0, 0
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR "$mat.gltf.pbrMetallicRoughness.metallicFactor", 0, 0
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR "$mat.gltf.pbrMetallicRoughness.roughnessFactor", 0, 0
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE aiTextureType_DIFFUSE, 1
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_GLTF_ALPHAMODE "$mat.gltf.alphaMode", 0, 0
+#define AI_MATKEY_GLTF_ALPHACUTOFF "$mat.gltf.alphaCutoff", 0, 0
+#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS "$mat.gltf.pbrSpecularGlossiness", 0, 0
+#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR "$mat.gltf.pbrMetallicRoughness.glossinessFactor", 0, 0
+#define AI_MATKEY_GLTF_UNLIT "$mat.gltf.unlit", 0, 0
+
+#define _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE "$tex.file.texCoord"
+#define _AI_MATKEY_GLTF_MAPPINGNAME_BASE "$tex.mappingname"
+#define _AI_MATKEY_GLTF_MAPPINGID_BASE "$tex.mappingid"
+#define _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE "$tex.mappingfiltermag"
+#define _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE "$tex.mappingfiltermin"
+#define _AI_MATKEY_GLTF_SCALE_BASE "$tex.scale"
+#define _AI_MATKEY_GLTF_STRENGTH_BASE "$tex.strength"
+
+#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD(type, N) _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGFILTER_MIN(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE, type, N
+#define AI_MATKEY_GLTF_TEXTURE_SCALE(type, N) _AI_MATKEY_GLTF_SCALE_BASE, type, N
+#define AI_MATKEY_GLTF_TEXTURE_STRENGTH(type, N) _AI_MATKEY_GLTF_STRENGTH_BASE, type, N
+
+#endif //!!AI_PBRMATERIAL_H_INC
diff --git a/thirdparty/assimp/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h b/thirdparty/assimp/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h
new file mode 100644
index 0000000000..41d8004877
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h
@@ -0,0 +1,92 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2016, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Android implementation of IOSystem using the standard C file functions.
+ * Aimed to ease the access to android assets */
+
+#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+#ifndef AI_ANDROIDJNIIOSYSTEM_H_INC
+#define AI_ANDROIDJNIIOSYSTEM_H_INC
+
+#include <assimp/DefaultIOSystem.h>
+#include <android/asset_manager.h>
+#include <android/asset_manager_jni.h>
+#include <android/native_activity.h>
+
+namespace Assimp	{
+
+// ---------------------------------------------------------------------------
+/** Android extension to DefaultIOSystem using the standard C file functions */
+class ASSIMP_API AndroidJNIIOSystem : public DefaultIOSystem
+{
+public:
+
+	/** Initialize android activity data */
+	std::string mApkWorkspacePath;
+	AAssetManager* mApkAssetManager;
+
+	/** Constructor. */
+	AndroidJNIIOSystem(ANativeActivity* activity);
+
+	/** Destructor. */
+	~AndroidJNIIOSystem();
+
+	// -------------------------------------------------------------------
+	/** Tests for the existence of a file at the given path. */
+	bool Exists( const char* pFile) const;
+
+	// -------------------------------------------------------------------
+	/** Opens a file at the given path, with given mode */
+	IOStream* Open( const char* strFile, const char* strMode);
+
+	// ------------------------------------------------------------------------------------------------
+	// Inits Android extractor
+	void AndroidActivityInit(ANativeActivity* activity);
+
+	// ------------------------------------------------------------------------------------------------
+	// Extracts android asset
+	bool AndroidExtractAsset(std::string name);
+
+};
+
+} //!ns Assimp
+
+#endif //AI_ANDROIDJNIIOSYSTEM_H_INC
+#endif //__ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
diff --git a/thirdparty/assimp/include/assimp/postprocess.h b/thirdparty/assimp/include/assimp/postprocess.h
new file mode 100644
index 0000000000..c23a5490a5
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/postprocess.h
@@ -0,0 +1,679 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file postprocess.h
+ *  @brief Definitions for import post processing steps
+ */
+#pragma once
+#ifndef AI_POSTPROCESS_H_INC
+#define AI_POSTPROCESS_H_INC
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// -----------------------------------------------------------------------------------
+/** @enum  aiPostProcessSteps
+ *  @brief Defines the flags for all possible post processing steps.
+ *
+ *  @note Some steps are influenced by properties set on the Assimp::Importer itself
+ *
+ *  @see Assimp::Importer::ReadFile()
+ *  @see Assimp::Importer::SetPropertyInteger()
+ *  @see aiImportFile
+ *  @see aiImportFileEx
+ */
+// -----------------------------------------------------------------------------------
+enum aiPostProcessSteps
+{
+
+    // -------------------------------------------------------------------------
+    /** <hr>Calculates the tangents and bitangents for the imported meshes.
+     *
+     * Does nothing if a mesh does not have normals. You might want this post
+     * processing step to be executed if you plan to use tangent space calculations
+     * such as normal mapping  applied to the meshes. There's an importer property,
+     * <tt>#AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE</tt>, which allows you to specify
+     * a maximum smoothing angle for the algorithm. However, usually you'll
+     * want to leave it at the default value.
+     */
+    aiProcess_CalcTangentSpace = 0x1,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Identifies and joins identical vertex data sets within all
+     *  imported meshes.
+     *
+     * After this step is run, each mesh contains unique vertices,
+     * so a vertex may be used by multiple faces. You usually want
+     * to use this post processing step. If your application deals with
+     * indexed geometry, this step is compulsory or you'll just waste rendering
+     * time. <b>If this flag is not specified</b>, no vertices are referenced by
+     * more than one face and <b>no index buffer is required</b> for rendering.
+     */
+    aiProcess_JoinIdenticalVertices = 0x2,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Converts all the imported data to a left-handed coordinate space.
+     *
+     * By default the data is returned in a right-handed coordinate space (which
+     * OpenGL prefers). In this space, +X points to the right,
+     * +Z points towards the viewer, and +Y points upwards. In the DirectX
+     * coordinate space +X points to the right, +Y points upwards, and +Z points
+     * away from the viewer.
+     *
+     * You'll probably want to consider this flag if you use Direct3D for
+     * rendering. The #aiProcess_ConvertToLeftHanded flag supersedes this
+     * setting and bundles all conversions typically required for D3D-based
+     * applications.
+     */
+    aiProcess_MakeLeftHanded = 0x4,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Triangulates all faces of all meshes.
+     *
+     * By default the imported mesh data might contain faces with more than 3
+     * indices. For rendering you'll usually want all faces to be triangles.
+     * This post processing step splits up faces with more than 3 indices into
+     * triangles. Line and point primitives are *not* modified! If you want
+     * 'triangles only' with no other kinds of primitives, try the following
+     * solution:
+     * <ul>
+     * <li>Specify both #aiProcess_Triangulate and #aiProcess_SortByPType </li>
+     * <li>Ignore all point and line meshes when you process assimp's output</li>
+     * </ul>
+     */
+    aiProcess_Triangulate = 0x8,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Removes some parts of the data structure (animations, materials,
+     *  light sources, cameras, textures, vertex components).
+     *
+     * The  components to be removed are specified in a separate
+     * importer property, <tt>#AI_CONFIG_PP_RVC_FLAGS</tt>. This is quite useful
+     * if you don't need all parts of the output structure. Vertex colors
+     * are rarely used today for example... Calling this step to remove unneeded
+     * data from the pipeline as early as possible results in increased
+     * performance and a more optimized output data structure.
+     * This step is also useful if you want to force Assimp to recompute
+     * normals or tangents. The corresponding steps don't recompute them if
+     * they're already there (loaded from the source asset). By using this
+     * step you can make sure they are NOT there.
+     *
+     * This flag is a poor one, mainly because its purpose is usually
+     * misunderstood. Consider the following case: a 3D model has been exported
+     * from a CAD app, and it has per-face vertex colors. Vertex positions can't be
+     * shared, thus the #aiProcess_JoinIdenticalVertices step fails to
+     * optimize the data because of these nasty little vertex colors.
+     * Most apps don't even process them, so it's all for nothing. By using
+     * this step, unneeded components are excluded as early as possible
+     * thus opening more room for internal optimizations.
+     */
+    aiProcess_RemoveComponent = 0x10,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Generates normals for all faces of all meshes.
+     *
+     * This is ignored if normals are already there at the time this flag
+     * is evaluated. Model importers try to load them from the source file, so
+     * they're usually already there. Face normals are shared between all points
+     * of a single face, so a single point can have multiple normals, which
+     * forces the library to duplicate vertices in some cases.
+     * #aiProcess_JoinIdenticalVertices is *senseless* then.
+     *
+     * This flag may not be specified together with #aiProcess_GenSmoothNormals.
+     */
+    aiProcess_GenNormals = 0x20,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Generates smooth normals for all vertices in the mesh.
+    *
+    * This is ignored if normals are already there at the time this flag
+    * is evaluated. Model importers try to load them from the source file, so
+    * they're usually already there.
+    *
+    * This flag may not be specified together with
+    * #aiProcess_GenNormals. There's a importer property,
+    * <tt>#AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE</tt> which allows you to specify
+    * an angle maximum for the normal smoothing algorithm. Normals exceeding
+    * this limit are not smoothed, resulting in a 'hard' seam between two faces.
+    * Using a decent angle here (e.g. 80 degrees) results in very good visual
+    * appearance.
+    */
+    aiProcess_GenSmoothNormals = 0x40,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Splits large meshes into smaller sub-meshes.
+    *
+    * This is quite useful for real-time rendering, where the number of triangles
+    * which can be maximally processed in a single draw-call is limited
+    * by the video driver/hardware. The maximum vertex buffer is usually limited
+    * too. Both requirements can be met with this step: you may specify both a
+    * triangle and vertex limit for a single mesh.
+    *
+    * The split limits can (and should!) be set through the
+    * <tt>#AI_CONFIG_PP_SLM_VERTEX_LIMIT</tt> and <tt>#AI_CONFIG_PP_SLM_TRIANGLE_LIMIT</tt>
+    * importer properties. The default values are <tt>#AI_SLM_DEFAULT_MAX_VERTICES</tt> and
+    * <tt>#AI_SLM_DEFAULT_MAX_TRIANGLES</tt>.
+    *
+    * Note that splitting is generally a time-consuming task, but only if there's
+    * something to split. The use of this step is recommended for most users.
+    */
+    aiProcess_SplitLargeMeshes = 0x80,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Removes the node graph and pre-transforms all vertices with
+    * the local transformation matrices of their nodes.
+    *
+    * The output scene still contains nodes, however there is only a
+    * root node with children, each one referencing only one mesh,
+    * and each mesh referencing one material. For rendering, you can
+    * simply render all meshes in order - you don't need to pay
+    * attention to local transformations and the node hierarchy.
+    * Animations are removed during this step.
+    * This step is intended for applications without a scenegraph.
+    * The step CAN cause some problems: if e.g. a mesh of the asset
+    * contains normals and another, using the same material index, does not,
+    * they will be brought together, but the first meshes's part of
+    * the normal list is zeroed. However, these artifacts are rare.
+    * @note The <tt>#AI_CONFIG_PP_PTV_NORMALIZE</tt> configuration property
+    * can be set to normalize the scene's spatial dimension to the -1...1
+    * range.
+    */
+    aiProcess_PreTransformVertices = 0x100,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Limits the number of bones simultaneously affecting a single vertex
+    *  to a maximum value.
+    *
+    * If any vertex is affected by more than the maximum number of bones, the least
+    * important vertex weights are removed and the remaining vertex weights are
+    * renormalized so that the weights still sum up to 1.
+    * The default bone weight limit is 4 (defined as <tt>#AI_LMW_MAX_WEIGHTS</tt> in
+    * config.h), but you can use the <tt>#AI_CONFIG_PP_LBW_MAX_WEIGHTS</tt> importer
+    * property to supply your own limit to the post processing step.
+    *
+    * If you intend to perform the skinning in hardware, this post processing
+    * step might be of interest to you.
+    */
+    aiProcess_LimitBoneWeights = 0x200,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Validates the imported scene data structure.
+     * This makes sure that all indices are valid, all animations and
+     * bones are linked correctly, all material references are correct .. etc.
+     *
+     * It is recommended that you capture Assimp's log output if you use this flag,
+     * so you can easily find out what's wrong if a file fails the
+     * validation. The validator is quite strict and will find *all*
+     * inconsistencies in the data structure... It is recommended that plugin
+     * developers use it to debug their loaders. There are two types of
+     * validation failures:
+     * <ul>
+     * <li>Error: There's something wrong with the imported data. Further
+     *   postprocessing is not possible and the data is not usable at all.
+     *   The import fails. #Importer::GetErrorString() or #aiGetErrorString()
+     *   carry the error message around.</li>
+     * <li>Warning: There are some minor issues (e.g. 1000000 animation
+     *   keyframes with the same time), but further postprocessing and use
+     *   of the data structure is still safe. Warning details are written
+     *   to the log file, <tt>#AI_SCENE_FLAGS_VALIDATION_WARNING</tt> is set
+     *   in #aiScene::mFlags</li>
+     * </ul>
+     *
+     * This post-processing step is not time-consuming. Its use is not
+     * compulsory, but recommended.
+    */
+    aiProcess_ValidateDataStructure = 0x400,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Reorders triangles for better vertex cache locality.
+     *
+     * The step tries to improve the ACMR (average post-transform vertex cache
+     * miss ratio) for all meshes. The implementation runs in O(n) and is
+     * roughly based on the 'tipsify' algorithm (see <a href="
+     * http://www.cs.princeton.edu/gfx/pubs/Sander_2007_%3ETR/tipsy.pdf">this
+     * paper</a>).
+     *
+     * If you intend to render huge models in hardware, this step might
+     * be of interest to you. The <tt>#AI_CONFIG_PP_ICL_PTCACHE_SIZE</tt>
+     * importer property can be used to fine-tune the cache optimization.
+     */
+    aiProcess_ImproveCacheLocality = 0x800,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Searches for redundant/unreferenced materials and removes them.
+     *
+     * This is especially useful in combination with the
+     * #aiProcess_PreTransformVertices and #aiProcess_OptimizeMeshes flags.
+     * Both join small meshes with equal characteristics, but they can't do
+     * their work if two meshes have different materials. Because several
+     * material settings are lost during Assimp's import filters,
+     * (and because many exporters don't check for redundant materials), huge
+     * models often have materials which are are defined several times with
+     * exactly the same settings.
+     *
+     * Several material settings not contributing to the final appearance of
+     * a surface are ignored in all comparisons (e.g. the material name).
+     * So, if you're passing additional information through the
+     * content pipeline (probably using *magic* material names), don't
+     * specify this flag. Alternatively take a look at the
+     * <tt>#AI_CONFIG_PP_RRM_EXCLUDE_LIST</tt> importer property.
+     */
+    aiProcess_RemoveRedundantMaterials = 0x1000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step tries to determine which meshes have normal vectors
+     * that are facing inwards and inverts them.
+     *
+     * The algorithm is simple but effective:
+     * the bounding box of all vertices + their normals is compared against
+     * the volume of the bounding box of all vertices without their normals.
+     * This works well for most objects, problems might occur with planar
+     * surfaces. However, the step tries to filter such cases.
+     * The step inverts all in-facing normals. Generally it is recommended
+     * to enable this step, although the result is not always correct.
+    */
+    aiProcess_FixInfacingNormals = 0x2000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step splits meshes with more than one primitive type in
+     *  homogeneous sub-meshes.
+     *
+     *  The step is executed after the triangulation step. After the step
+     *  returns, just one bit is set in aiMesh::mPrimitiveTypes. This is
+     *  especially useful for real-time rendering where point and line
+     *  primitives are often ignored or rendered separately.
+     *  You can use the <tt>#AI_CONFIG_PP_SBP_REMOVE</tt> importer property to
+     *  specify which primitive types you need. This can be used to easily
+     *  exclude lines and points, which are rarely used, from the import.
+    */
+    aiProcess_SortByPType = 0x8000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step searches all meshes for degenerate primitives and
+     *  converts them to proper lines or points.
+     *
+     * A face is 'degenerate' if one or more of its points are identical.
+     * To have the degenerate stuff not only detected and collapsed but
+     * removed, try one of the following procedures:
+     * <br><b>1.</b> (if you support lines and points for rendering but don't
+     *    want the degenerates)<br>
+     * <ul>
+     *   <li>Specify the #aiProcess_FindDegenerates flag.
+     *   </li>
+     *   <li>Set the <tt>#AI_CONFIG_PP_FD_REMOVE</tt> importer property to
+     *       1. This will cause the step to remove degenerate triangles from the
+     *       import as soon as they're detected. They won't pass any further
+     *       pipeline steps.
+     *   </li>
+     * </ul>
+     * <br><b>2.</b>(if you don't support lines and points at all)<br>
+     * <ul>
+     *   <li>Specify the #aiProcess_FindDegenerates flag.
+     *   </li>
+     *   <li>Specify the #aiProcess_SortByPType flag. This moves line and
+     *     point primitives to separate meshes.
+     *   </li>
+     *   <li>Set the <tt>#AI_CONFIG_PP_SBP_REMOVE</tt> importer property to
+     *       @code aiPrimitiveType_POINTS | aiPrimitiveType_LINES
+     *       @endcode to cause SortByPType to reject point
+     *       and line meshes from the scene.
+     *   </li>
+     * </ul>
+     *
+     * This step also removes very small triangles with a surface area smaller
+     * than 10^-6. If you rely on having these small triangles, or notice holes
+     * in your model, set the property <tt>#AI_CONFIG_PP_FD_CHECKAREA</tt> to
+     * false.
+     * @note Degenerate polygons are not necessarily evil and that's why
+     * they're not removed by default. There are several file formats which
+     * don't support lines or points, and some exporters bypass the
+     * format specification and write them as degenerate triangles instead.
+    */
+    aiProcess_FindDegenerates = 0x10000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step searches all meshes for invalid data, such as zeroed
+     *  normal vectors or invalid UV coords and removes/fixes them. This is
+     *  intended to get rid of some common exporter errors.
+     *
+     * This is especially useful for normals. If they are invalid, and
+     * the step recognizes this, they will be removed and can later
+     * be recomputed, i.e. by the #aiProcess_GenSmoothNormals flag.<br>
+     * The step will also remove meshes that are infinitely small and reduce
+     * animation tracks consisting of hundreds if redundant keys to a single
+     * key. The <tt>AI_CONFIG_PP_FID_ANIM_ACCURACY</tt> config property decides
+     * the accuracy of the check for duplicate animation tracks.
+    */
+    aiProcess_FindInvalidData = 0x20000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step converts non-UV mappings (such as spherical or
+     *  cylindrical mapping) to proper texture coordinate channels.
+     *
+     * Most applications will support UV mapping only, so you will
+     * probably want to specify this step in every case. Note that Assimp is not
+     * always able to match the original mapping implementation of the
+     * 3D app which produced a model perfectly. It's always better to let the
+     * modelling app compute the UV channels - 3ds max, Maya, Blender,
+     * LightWave, and Modo do this for example.
+     *
+     * @note If this step is not requested, you'll need to process the
+     * <tt>#AI_MATKEY_MAPPING</tt> material property in order to display all assets
+     * properly.
+     */
+    aiProcess_GenUVCoords = 0x40000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step applies per-texture UV transformations and bakes
+     *  them into stand-alone vtexture coordinate channels.
+     *
+     * UV transformations are specified per-texture - see the
+     * <tt>#AI_MATKEY_UVTRANSFORM</tt> material key for more information.
+     * This step processes all textures with
+     * transformed input UV coordinates and generates a new (pre-transformed) UV channel
+     * which replaces the old channel. Most applications won't support UV
+     * transformations, so you will probably want to specify this step.
+     *
+     * @note UV transformations are usually implemented in real-time apps by
+     * transforming texture coordinates at vertex shader stage with a 3x3
+     * (homogenous) transformation matrix.
+    */
+    aiProcess_TransformUVCoords = 0x80000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step searches for duplicate meshes and replaces them
+     *  with references to the first mesh.
+     *
+     *  This step takes a while, so don't use it if speed is a concern.
+     *  Its main purpose is to workaround the fact that many export
+     *  file formats don't support instanced meshes, so exporters need to
+     *  duplicate meshes. This step removes the duplicates again. Please
+     *  note that Assimp does not currently support per-node material
+     *  assignment to meshes, which means that identical meshes with
+     *  different materials are currently *not* joined, although this is
+     *  planned for future versions.
+     */
+    aiProcess_FindInstances = 0x100000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>A postprocessing step to reduce the number of meshes.
+     *
+     *  This will, in fact, reduce the number of draw calls.
+     *
+     *  This is a very effective optimization and is recommended to be used
+     *  together with #aiProcess_OptimizeGraph, if possible. The flag is fully
+     *  compatible with both #aiProcess_SplitLargeMeshes and #aiProcess_SortByPType.
+    */
+    aiProcess_OptimizeMeshes  = 0x200000,
+
+
+    // -------------------------------------------------------------------------
+    /** <hr>A postprocessing step to optimize the scene hierarchy.
+     *
+     *  Nodes without animations, bones, lights or cameras assigned are
+     *  collapsed and joined.
+     *
+     *  Node names can be lost during this step. If you use special 'tag nodes'
+     *  to pass additional information through your content pipeline, use the
+     *  <tt>#AI_CONFIG_PP_OG_EXCLUDE_LIST</tt> importer property to specify a
+     *  list of node names you want to be kept. Nodes matching one of the names
+     *  in this list won't be touched or modified.
+     *
+     *  Use this flag with caution. Most simple files will be collapsed to a
+     *  single node, so complex hierarchies are usually completely lost. This is not
+     *  useful for editor environments, but probably a very effective
+     *  optimization if you just want to get the model data, convert it to your
+     *  own format, and render it as fast as possible.
+     *
+     *  This flag is designed to be used with #aiProcess_OptimizeMeshes for best
+     *  results.
+     *
+     *  @note 'Crappy' scenes with thousands of extremely small meshes packed
+     *  in deeply nested nodes exist for almost all file formats.
+     *  #aiProcess_OptimizeMeshes in combination with #aiProcess_OptimizeGraph
+     *  usually fixes them all and makes them renderable.
+    */
+    aiProcess_OptimizeGraph  = 0x400000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step flips all UV coordinates along the y-axis and adjusts
+     * material settings and bitangents accordingly.
+     *
+     * <b>Output UV coordinate system:</b>
+     * @code
+     * 0y|0y ---------- 1x|0y
+     * |                 |
+     * |                 |
+     * |                 |
+     * 0x|1y ---------- 1x|1y
+     * @endcode
+     *
+     * You'll probably want to consider this flag if you use Direct3D for
+     * rendering. The #aiProcess_ConvertToLeftHanded flag supersedes this
+     * setting and bundles all conversions typically required for D3D-based
+     * applications.
+    */
+    aiProcess_FlipUVs = 0x800000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step adjusts the output face winding order to be CW.
+     *
+     * The default face winding order is counter clockwise (CCW).
+     *
+     * <b>Output face order:</b>
+     * @code
+     *       x2
+     *
+     *                         x0
+     *  x1
+     * @endcode
+    */
+    aiProcess_FlipWindingOrder  = 0x1000000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step splits meshes with many bones into sub-meshes so that each
+     * su-bmesh has fewer or as many bones as a given limit.
+    */
+    aiProcess_SplitByBoneCount  = 0x2000000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step removes bones losslessly or according to some threshold.
+     *
+     *  In some cases (i.e. formats that require it) exporters are forced to
+     *  assign dummy bone weights to otherwise static meshes assigned to
+     *  animated meshes. Full, weight-based skinning is expensive while
+     *  animating nodes is extremely cheap, so this step is offered to clean up
+     *  the data in that regard.
+     *
+     *  Use <tt>#AI_CONFIG_PP_DB_THRESHOLD</tt> to control this.
+     *  Use <tt>#AI_CONFIG_PP_DB_ALL_OR_NONE</tt> if you want bones removed if and
+     *  only if all bones within the scene qualify for removal.
+    */
+    aiProcess_Debone  = 0x4000000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>This step will perform a global scale of the model.
+    *
+    *  Some importers are providing a mechanism to define a scaling unit for the
+    *  model. This post processing step can be used to do so. You need to get the
+    *  global scaling from your importer settings like in FBX. Use the flag
+    *  AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY from the global property table to configure this.
+    *
+    *  Use <tt>#AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY</tt> to setup the global scaing factor.
+    */
+    aiProcess_GlobalScale = 0x8000000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>A postprocessing step to embed of textures.
+     *
+     *  This will remove external data dependencies for textures.
+     *  If a texture's file does not exist at the specified path
+     *  (due, for instance, to an absolute path generated on another system),
+     *  it will check if a file with the same name exists at the root folder
+     *  of the imported model. And if so, it uses that.
+     */
+    aiProcess_EmbedTextures  = 0x10000000,
+        
+    // aiProcess_GenEntityMeshes = 0x100000,
+    // aiProcess_OptimizeAnimations = 0x200000
+    // aiProcess_FixTexturePaths = 0x200000
+
+
+    aiProcess_ForceGenNormals = 0x20000000,
+
+    // -------------------------------------------------------------------------
+    /** <hr>Drops normals for all faces of all meshes.
+     *
+     * This is ignored if no normals are present.
+     * Face normals are shared between all points of a single face,
+     * so a single point can have multiple normals, which
+     * forces the library to duplicate vertices in some cases.
+     * #aiProcess_JoinIdenticalVertices is *senseless* then.
+     * This process gives sense back to aiProcess_JoinIdenticalVertices
+     */
+    aiProcess_DropNormals = 0x40000000,
+};
+
+
+// ---------------------------------------------------------------------------------------
+/** @def aiProcess_ConvertToLeftHanded
+ *  @brief Shortcut flag for Direct3D-based applications.
+ *
+ *  Supersedes the #aiProcess_MakeLeftHanded and #aiProcess_FlipUVs and
+ *  #aiProcess_FlipWindingOrder flags.
+ *  The output data matches Direct3D's conventions: left-handed geometry, upper-left
+ *  origin for UV coordinates and finally clockwise face order, suitable for CCW culling.
+ *
+ *  @deprecated
+ */
+#define aiProcess_ConvertToLeftHanded ( \
+    aiProcess_MakeLeftHanded     | \
+    aiProcess_FlipUVs            | \
+    aiProcess_FlipWindingOrder   | \
+    0 )
+
+
+// ---------------------------------------------------------------------------------------
+/** @def aiProcessPreset_TargetRealtime_Fast
+ *  @brief Default postprocess configuration optimizing the data for real-time rendering.
+ *
+ *  Applications would want to use this preset to load models on end-user PCs,
+ *  maybe for direct use in game.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the #aiProcess_ConvertToLeftHanded step. If you don't support UV transformations
+ * in your application apply the #aiProcess_TransformUVCoords step, too.
+ *  @note Please take the time to read the docs for the steps enabled by this preset.
+ *  Some of them offer further configurable properties, while some of them might not be of
+ *  use for you so it might be better to not specify them.
+ */
+#define aiProcessPreset_TargetRealtime_Fast ( \
+    aiProcess_CalcTangentSpace      |  \
+    aiProcess_GenNormals            |  \
+    aiProcess_JoinIdenticalVertices |  \
+    aiProcess_Triangulate           |  \
+    aiProcess_GenUVCoords           |  \
+    aiProcess_SortByPType           |  \
+    0 )
+
+ // ---------------------------------------------------------------------------------------
+ /** @def aiProcessPreset_TargetRealtime_Quality
+  *  @brief Default postprocess configuration optimizing the data for real-time rendering.
+  *
+  *  Unlike #aiProcessPreset_TargetRealtime_Fast, this configuration
+  *  performs some extra optimizations to improve rendering speed and
+  *  to minimize memory usage. It could be a good choice for a level editor
+  *  environment where import speed is not so important.
+  *
+  *  If you're using DirectX, don't forget to combine this value with
+  *  the #aiProcess_ConvertToLeftHanded step. If you don't support UV transformations
+  *  in your application apply the #aiProcess_TransformUVCoords step, too.
+  *  @note Please take the time to read the docs for the steps enabled by this preset.
+  *  Some of them offer further configurable properties, while some of them might not be
+  *  of use for you so it might be better to not specify them.
+  */
+#define aiProcessPreset_TargetRealtime_Quality ( \
+    aiProcess_CalcTangentSpace              |  \
+    aiProcess_GenSmoothNormals              |  \
+    aiProcess_JoinIdenticalVertices         |  \
+    aiProcess_ImproveCacheLocality          |  \
+    aiProcess_LimitBoneWeights              |  \
+    aiProcess_RemoveRedundantMaterials      |  \
+    aiProcess_SplitLargeMeshes              |  \
+    aiProcess_Triangulate                   |  \
+    aiProcess_GenUVCoords                   |  \
+    aiProcess_SortByPType                   |  \
+    aiProcess_FindDegenerates               |  \
+    aiProcess_FindInvalidData               |  \
+    0 )
+
+ // ---------------------------------------------------------------------------------------
+ /** @def aiProcessPreset_TargetRealtime_MaxQuality
+  *  @brief Default postprocess configuration optimizing the data for real-time rendering.
+  *
+  *  This preset enables almost every optimization step to achieve perfectly
+  *  optimized data. It's your choice for level editor environments where import speed
+  *  is not important.
+  *
+  *  If you're using DirectX, don't forget to combine this value with
+  *  the #aiProcess_ConvertToLeftHanded step. If you don't support UV transformations
+  *  in your application, apply the #aiProcess_TransformUVCoords step, too.
+  *  @note Please take the time to read the docs for the steps enabled by this preset.
+  *  Some of them offer further configurable properties, while some of them might not be
+  *  of use for you so it might be better to not specify them.
+  */
+#define aiProcessPreset_TargetRealtime_MaxQuality ( \
+    aiProcessPreset_TargetRealtime_Quality   |  \
+    aiProcess_FindInstances                  |  \
+    aiProcess_ValidateDataStructure          |  \
+    aiProcess_OptimizeMeshes                 |  \
+    0 )
+
+
+#ifdef __cplusplus
+} // end of extern "C"
+#endif
+
+#endif // AI_POSTPROCESS_H_INC
diff --git a/thirdparty/assimp/include/assimp/qnan.h b/thirdparty/assimp/include/assimp/qnan.h
new file mode 100644
index 0000000000..0918bde5e7
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/qnan.h
@@ -0,0 +1,165 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**  @file  qnan.h
+ *   @brief Some utilities for our dealings with qnans.
+ *
+ *   @note Some loaders use qnans to mark invalid values tempoarily, also
+ *     Assimp explicitly enforces undefined normals to be set to qnan.
+ *     qnan utilities are available in standard libraries (C99 for example)
+ *     but last time I checked compiler coverage was so bad that I decided
+ *     to reinvent the wheel.
+ */
+
+#ifndef AI_QNAN_H_INCLUDED
+#define AI_QNAN_H_INCLUDED
+
+#include <assimp/defs.h>
+#include <limits>
+#include <stdint.h>
+
+// ---------------------------------------------------------------------------
+/** Data structure to represent the bit pattern of a 32 Bit
+ *         IEEE 754 floating-point number. */
+union _IEEESingle
+{
+    float Float;
+    struct
+    {
+        uint32_t Frac : 23;
+        uint32_t Exp  : 8;
+        uint32_t Sign : 1;
+    } IEEE;
+};
+
+// ---------------------------------------------------------------------------
+/** Data structure to represent the bit pattern of a 64 Bit
+ *         IEEE 754 floating-point number. */
+union _IEEEDouble
+{
+    double Double;
+    struct
+    {
+        uint64_t Frac : 52;
+        uint64_t Exp  : 11;
+        uint64_t Sign : 1;
+    } IEEE;
+};
+
+// ---------------------------------------------------------------------------
+/** Check whether a given float is qNaN.
+ *  @param in Input value */
+AI_FORCE_INLINE bool is_qnan(float in)
+{
+    // the straightforward solution does not work:
+    //   return (in != in);
+    // compiler generates code like this
+    //   load <in> to <register-with-different-width>
+    //   compare <register-with-different-width> against <in>
+
+    // FIXME: Use <float> stuff instead? I think fpclassify needs C99
+    _IEEESingle temp;
+    memcpy(&temp, &in, sizeof(float));
+    return (temp.IEEE.Exp == (1u << 8)-1 &&
+        temp.IEEE.Frac);
+}
+
+// ---------------------------------------------------------------------------
+/** Check whether a given double is qNaN.
+ *  @param in Input value */
+AI_FORCE_INLINE bool is_qnan(double in)
+{
+    // the straightforward solution does not work:
+    //   return (in != in);
+    // compiler generates code like this
+    //   load <in> to <register-with-different-width>
+    //   compare <register-with-different-width> against <in>
+
+    // FIXME: Use <float> stuff instead? I think fpclassify needs C99
+    _IEEEDouble temp;
+    memcpy(&temp, &in, sizeof(in));
+    return (temp.IEEE.Exp == (1u << 11)-1 &&
+        temp.IEEE.Frac);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief check whether a float is either NaN or (+/-) INF.
+ *
+ *  Denorms return false, they're treated like normal values.
+ *  @param in Input value */
+AI_FORCE_INLINE bool is_special_float(float in)
+{
+    _IEEESingle temp;
+    memcpy(&temp, &in, sizeof(float));
+    return (temp.IEEE.Exp == (1u << 8)-1);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief check whether a double is either NaN or (+/-) INF.
+ *
+ *  Denorms return false, they're treated like normal values.
+ *  @param in Input value */
+AI_FORCE_INLINE bool is_special_float(double in)
+{
+   _IEEESingle temp;
+    memcpy(&temp, &in, sizeof(float));
+    return (temp.IEEE.Exp == (1u << 11)-1);
+}
+
+// ---------------------------------------------------------------------------
+/** Check whether a float is NOT qNaN.
+ *  @param in Input value */
+template<class TReal>
+AI_FORCE_INLINE bool is_not_qnan(TReal in)
+{
+    return !is_qnan(in);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief Get a fresh qnan.  */
+AI_FORCE_INLINE ai_real get_qnan()
+{
+    return std::numeric_limits<ai_real>::quiet_NaN();
+}
+
+#endif // !! AI_QNAN_H_INCLUDED
diff --git a/thirdparty/assimp/include/assimp/quaternion.h b/thirdparty/assimp/include/assimp/quaternion.h
new file mode 100644
index 0000000000..96574d24b9
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/quaternion.h
@@ -0,0 +1,130 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file quaternion.h
+ *  @brief Quaternion structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_QUATERNION_H_INC
+#define AI_QUATERNION_H_INC
+
+#ifdef __cplusplus
+
+#include "defs.h"
+
+template <typename TReal> class aiVector3t;
+template <typename TReal> class aiMatrix3x3t;
+
+// ---------------------------------------------------------------------------
+/** Represents a quaternion in a 4D vector. */
+template <typename TReal>
+class aiQuaterniont
+{
+public:
+    aiQuaterniont() AI_NO_EXCEPT : w(1.0), x(), y(), z() {}
+    aiQuaterniont(TReal pw, TReal px, TReal py, TReal pz)
+        : w(pw), x(px), y(py), z(pz) {}
+
+    /** Construct from rotation matrix. Result is undefined if the matrix is not orthonormal. */
+    explicit aiQuaterniont( const aiMatrix3x3t<TReal>& pRotMatrix);
+
+    /** Construct from euler angles */
+    aiQuaterniont( TReal rotx, TReal roty, TReal rotz);
+
+    /** Construct from an axis-angle pair */
+    aiQuaterniont( aiVector3t<TReal> axis, TReal angle);
+
+    /** Construct from a normalized quaternion stored in a vec3 */
+    explicit aiQuaterniont( aiVector3t<TReal> normalized);
+
+    /** Returns a matrix representation of the quaternion */
+    aiMatrix3x3t<TReal> GetMatrix() const;
+
+public:
+
+    bool operator== (const aiQuaterniont& o) const;
+    bool operator!= (const aiQuaterniont& o) const;
+
+    bool Equal(const aiQuaterniont& o, TReal epsilon = 1e-6) const;
+
+public:
+
+    /** Normalize the quaternion */
+    aiQuaterniont& Normalize();
+
+    /** Compute quaternion conjugate */
+    aiQuaterniont& Conjugate ();
+
+    /** Rotate a point by this quaternion */
+    aiVector3t<TReal> Rotate (const aiVector3t<TReal>& in);
+
+    /** Multiply two quaternions */
+    aiQuaterniont operator* (const aiQuaterniont& two) const;
+
+public:
+
+    /** Performs a spherical interpolation between two quaternions and writes the result into the third.
+     * @param pOut Target object to received the interpolated rotation.
+     * @param pStart Start rotation of the interpolation at factor == 0.
+     * @param pEnd End rotation, factor == 1.
+     * @param pFactor Interpolation factor between 0 and 1. Values outside of this range yield undefined results.
+     */
+    static void Interpolate( aiQuaterniont& pOut, const aiQuaterniont& pStart,
+        const aiQuaterniont& pEnd, TReal pFactor);
+
+public:
+
+    //! w,x,y,z components of the quaternion
+    TReal w, x, y, z;
+} ;
+
+typedef aiQuaterniont<ai_real> aiQuaternion;
+
+#else
+
+struct aiQuaternion {
+    ai_real w, x, y, z;
+};
+
+#endif
+
+#endif // AI_QUATERNION_H_INC
diff --git a/thirdparty/assimp/include/assimp/quaternion.inl b/thirdparty/assimp/include/assimp/quaternion.inl
new file mode 100644
index 0000000000..c26648215e
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/quaternion.inl
@@ -0,0 +1,286 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  quaternion.inl
+ *  @brief Inline implementation of aiQuaterniont<TReal> operators
+ */
+#pragma once
+#ifndef AI_QUATERNION_INL_INC
+#define AI_QUATERNION_INL_INC
+
+#ifdef __cplusplus
+#include "quaternion.h"
+
+#include <cmath>
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+bool aiQuaterniont<TReal>::operator== (const aiQuaterniont& o) const
+{
+    return x == o.x && y == o.y && z == o.z && w == o.w;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+bool aiQuaterniont<TReal>::operator!= (const aiQuaterniont& o) const
+{
+    return !(*this == o);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline bool aiQuaterniont<TReal>::Equal(const aiQuaterniont& o, TReal epsilon) const {
+    return
+        std::abs(x - o.x) <= epsilon &&
+        std::abs(y - o.y) <= epsilon &&
+        std::abs(z - o.z) <= epsilon &&
+        std::abs(w - o.w) <= epsilon;
+}
+
+// ---------------------------------------------------------------------------
+// Constructs a quaternion from a rotation matrix
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( const aiMatrix3x3t<TReal> &pRotMatrix)
+{
+    TReal t = pRotMatrix.a1 + pRotMatrix.b2 + pRotMatrix.c3;
+
+    // large enough
+    if( t > static_cast<TReal>(0))
+    {
+        TReal s = std::sqrt(1 + t) * static_cast<TReal>(2.0);
+        x = (pRotMatrix.c2 - pRotMatrix.b3) / s;
+        y = (pRotMatrix.a3 - pRotMatrix.c1) / s;
+        z = (pRotMatrix.b1 - pRotMatrix.a2) / s;
+        w = static_cast<TReal>(0.25) * s;
+    } // else we have to check several cases
+    else if( pRotMatrix.a1 > pRotMatrix.b2 && pRotMatrix.a1 > pRotMatrix.c3 )
+    {
+        // Column 0:
+        TReal s = std::sqrt( static_cast<TReal>(1.0) + pRotMatrix.a1 - pRotMatrix.b2 - pRotMatrix.c3) * static_cast<TReal>(2.0);
+        x = static_cast<TReal>(0.25) * s;
+        y = (pRotMatrix.b1 + pRotMatrix.a2) / s;
+        z = (pRotMatrix.a3 + pRotMatrix.c1) / s;
+        w = (pRotMatrix.c2 - pRotMatrix.b3) / s;
+    }
+    else if( pRotMatrix.b2 > pRotMatrix.c3)
+    {
+        // Column 1:
+        TReal s = std::sqrt( static_cast<TReal>(1.0) + pRotMatrix.b2 - pRotMatrix.a1 - pRotMatrix.c3) * static_cast<TReal>(2.0);
+        x = (pRotMatrix.b1 + pRotMatrix.a2) / s;
+        y = static_cast<TReal>(0.25) * s;
+        z = (pRotMatrix.c2 + pRotMatrix.b3) / s;
+        w = (pRotMatrix.a3 - pRotMatrix.c1) / s;
+    } else
+    {
+        // Column 2:
+        TReal s = std::sqrt( static_cast<TReal>(1.0) + pRotMatrix.c3 - pRotMatrix.a1 - pRotMatrix.b2) * static_cast<TReal>(2.0);
+        x = (pRotMatrix.a3 + pRotMatrix.c1) / s;
+        y = (pRotMatrix.c2 + pRotMatrix.b3) / s;
+        z = static_cast<TReal>(0.25) * s;
+        w = (pRotMatrix.b1 - pRotMatrix.a2) / s;
+    }
+}
+
+// ---------------------------------------------------------------------------
+// Construction from euler angles
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( TReal fPitch, TReal fYaw, TReal fRoll )
+{
+    const TReal fSinPitch(std::sin(fPitch*static_cast<TReal>(0.5)));
+    const TReal fCosPitch(std::cos(fPitch*static_cast<TReal>(0.5)));
+    const TReal fSinYaw(std::sin(fYaw*static_cast<TReal>(0.5)));
+    const TReal fCosYaw(std::cos(fYaw*static_cast<TReal>(0.5)));
+    const TReal fSinRoll(std::sin(fRoll*static_cast<TReal>(0.5)));
+    const TReal fCosRoll(std::cos(fRoll*static_cast<TReal>(0.5)));
+    const TReal fCosPitchCosYaw(fCosPitch*fCosYaw);
+    const TReal fSinPitchSinYaw(fSinPitch*fSinYaw);
+    x = fSinRoll * fCosPitchCosYaw     - fCosRoll * fSinPitchSinYaw;
+    y = fCosRoll * fSinPitch * fCosYaw + fSinRoll * fCosPitch * fSinYaw;
+    z = fCosRoll * fCosPitch * fSinYaw - fSinRoll * fSinPitch * fCosYaw;
+    w = fCosRoll * fCosPitchCosYaw     + fSinRoll * fSinPitchSinYaw;
+}
+
+// ---------------------------------------------------------------------------
+// Returns a matrix representation of the quaternion
+template<typename TReal>
+inline aiMatrix3x3t<TReal> aiQuaterniont<TReal>::GetMatrix() const
+{
+    aiMatrix3x3t<TReal> resMatrix;
+    resMatrix.a1 = static_cast<TReal>(1.0) - static_cast<TReal>(2.0) * (y * y + z * z);
+    resMatrix.a2 = static_cast<TReal>(2.0) * (x * y - z * w);
+    resMatrix.a3 = static_cast<TReal>(2.0) * (x * z + y * w);
+    resMatrix.b1 = static_cast<TReal>(2.0) * (x * y + z * w);
+    resMatrix.b2 = static_cast<TReal>(1.0) - static_cast<TReal>(2.0) * (x * x + z * z);
+    resMatrix.b3 = static_cast<TReal>(2.0) * (y * z - x * w);
+    resMatrix.c1 = static_cast<TReal>(2.0) * (x * z - y * w);
+    resMatrix.c2 = static_cast<TReal>(2.0) * (y * z + x * w);
+    resMatrix.c3 = static_cast<TReal>(1.0) - static_cast<TReal>(2.0) * (x * x + y * y);
+
+    return resMatrix;
+}
+
+// ---------------------------------------------------------------------------
+// Construction from an axis-angle pair
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( aiVector3t<TReal> axis, TReal angle)
+{
+    axis.Normalize();
+
+    const TReal sin_a = std::sin( angle / 2 );
+    const TReal cos_a = std::cos( angle / 2 );
+    x    = axis.x * sin_a;
+    y    = axis.y * sin_a;
+    z    = axis.z * sin_a;
+    w    = cos_a;
+}
+// ---------------------------------------------------------------------------
+// Construction from am existing, normalized quaternion
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( aiVector3t<TReal> normalized)
+{
+    x = normalized.x;
+    y = normalized.y;
+    z = normalized.z;
+
+    const TReal t = static_cast<TReal>(1.0) - (x*x) - (y*y) - (z*z);
+
+    if (t < static_cast<TReal>(0.0)) {
+        w = static_cast<TReal>(0.0);
+    }
+    else w = std::sqrt (t);
+}
+
+// ---------------------------------------------------------------------------
+// Performs a spherical interpolation between two quaternions
+// Implementation adopted from the gmtl project. All others I found on the net fail in some cases.
+// Congrats, gmtl!
+template<typename TReal>
+inline void aiQuaterniont<TReal>::Interpolate( aiQuaterniont& pOut, const aiQuaterniont& pStart, const aiQuaterniont& pEnd, TReal pFactor)
+{
+    // calc cosine theta
+    TReal cosom = pStart.x * pEnd.x + pStart.y * pEnd.y + pStart.z * pEnd.z + pStart.w * pEnd.w;
+
+    // adjust signs (if necessary)
+    aiQuaterniont end = pEnd;
+    if( cosom < static_cast<TReal>(0.0))
+    {
+        cosom = -cosom;
+        end.x = -end.x;   // Reverse all signs
+        end.y = -end.y;
+        end.z = -end.z;
+        end.w = -end.w;
+    }
+
+    // Calculate coefficients
+    TReal sclp, sclq;
+    if( (static_cast<TReal>(1.0) - cosom) > static_cast<TReal>(0.0001)) // 0.0001 -> some epsillon
+    {
+        // Standard case (slerp)
+        TReal omega, sinom;
+        omega = std::acos( cosom); // extract theta from dot product's cos theta
+        sinom = std::sin( omega);
+        sclp  = std::sin( (static_cast<TReal>(1.0) - pFactor) * omega) / sinom;
+        sclq  = std::sin( pFactor * omega) / sinom;
+    } else
+    {
+        // Very close, do linear interp (because it's faster)
+        sclp = static_cast<TReal>(1.0) - pFactor;
+        sclq = pFactor;
+    }
+
+    pOut.x = sclp * pStart.x + sclq * end.x;
+    pOut.y = sclp * pStart.y + sclq * end.y;
+    pOut.z = sclp * pStart.z + sclq * end.z;
+    pOut.w = sclp * pStart.w + sclq * end.w;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiQuaterniont<TReal>& aiQuaterniont<TReal>::Normalize()
+{
+    // compute the magnitude and divide through it
+    const TReal mag = std::sqrt(x*x + y*y + z*z + w*w);
+    if (mag)
+    {
+        const TReal invMag = static_cast<TReal>(1.0)/mag;
+        x *= invMag;
+        y *= invMag;
+        z *= invMag;
+        w *= invMag;
+    }
+    return *this;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiQuaterniont<TReal> aiQuaterniont<TReal>::operator* (const aiQuaterniont& t) const
+{
+    return aiQuaterniont(w*t.w - x*t.x - y*t.y - z*t.z,
+        w*t.x + x*t.w + y*t.z - z*t.y,
+        w*t.y + y*t.w + z*t.x - x*t.z,
+        w*t.z + z*t.w + x*t.y - y*t.x);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiQuaterniont<TReal>& aiQuaterniont<TReal>::Conjugate ()
+{
+    x = -x;
+    y = -y;
+    z = -z;
+    return *this;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiVector3t<TReal> aiQuaterniont<TReal>::Rotate (const aiVector3t<TReal>& v)
+{
+    aiQuaterniont q2(0.f,v.x,v.y,v.z), q = *this, qinv = q;
+    qinv.Conjugate();
+
+    q = q*q2*qinv;
+    return aiVector3t<TReal>(q.x,q.y,q.z);
+}
+
+#endif
+#endif // AI_QUATERNION_INL_INC
diff --git a/thirdparty/assimp/include/assimp/scene.h b/thirdparty/assimp/include/assimp/scene.h
new file mode 100644
index 0000000000..de0239702d
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/scene.h
@@ -0,0 +1,416 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file scene.h
+ *  @brief Defines the data structures in which the imported scene is returned.
+ */
+#pragma once
+#ifndef AI_SCENE_H_INC
+#define AI_SCENE_H_INC
+
+#include "types.h"
+#include "texture.h"
+#include "mesh.h"
+#include "light.h"
+#include "camera.h"
+#include "material.h"
+#include "anim.h"
+#include "metadata.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wattributes"
+#endif
+
+// -------------------------------------------------------------------------------
+/** 
+ * A node in the imported hierarchy.
+ *
+ * Each node has name, a parent node (except for the root node),
+ * a transformation relative to its parent and possibly several child nodes.
+ * Simple file formats don't support hierarchical structures - for these formats
+ * the imported scene does consist of only a single root node without children.
+ */
+// -------------------------------------------------------------------------------
+struct ASSIMP_API aiNode
+{
+    /** The name of the node.
+     *
+     * The name might be empty (length of zero) but all nodes which
+     * need to be referenced by either bones or animations are named.
+     * Multiple nodes may have the same name, except for nodes which are referenced
+     * by bones (see #aiBone and #aiMesh::mBones). Their names *must* be unique.
+     *
+     * Cameras and lights reference a specific node by name - if there
+     * are multiple nodes with this name, they are assigned to each of them.
+     * <br>
+     * There are no limitations with regard to the characters contained in
+     * the name string as it is usually taken directly from the source file.
+     *
+     * Implementations should be able to handle tokens such as whitespace, tabs,
+     * line feeds, quotation marks, ampersands etc.
+     *
+     * Sometimes assimp introduces new nodes not present in the source file
+     * into the hierarchy (usually out of necessity because sometimes the
+     * source hierarchy format is simply not compatible). Their names are
+     * surrounded by @verbatim <> @endverbatim e.g.
+     *  @verbatim<DummyRootNode> @endverbatim.
+     */
+    C_STRUCT aiString mName;
+
+    /** The transformation relative to the node's parent. */
+    C_STRUCT aiMatrix4x4 mTransformation;
+
+    /** Parent node. NULL if this node is the root node. */
+    C_STRUCT aiNode* mParent;
+
+    /** The number of child nodes of this node. */
+    unsigned int mNumChildren;
+
+    /** The child nodes of this node. NULL if mNumChildren is 0. */
+    C_STRUCT aiNode** mChildren;
+
+    /** The number of meshes of this node. */
+    unsigned int mNumMeshes;
+
+    /** The meshes of this node. Each entry is an index into the
+      * mesh list of the #aiScene.
+      */
+    unsigned int* mMeshes;
+
+    /** Metadata associated with this node or NULL if there is no metadata.
+      *  Whether any metadata is generated depends on the source file format. See the
+      * @link importer_notes @endlink page for more information on every source file
+      * format. Importers that don't document any metadata don't write any.
+      */
+    C_STRUCT aiMetadata* mMetaData;
+
+#ifdef __cplusplus
+    /** Constructor */
+    aiNode();
+
+    /** Construction from a specific name */
+    explicit aiNode(const std::string& name);
+
+    /** Destructor */
+    ~aiNode();
+
+    /** Searches for a node with a specific name, beginning at this
+     *  nodes. Normally you will call this method on the root node
+     *  of the scene.
+     *
+     *  @param name Name to search for
+     *  @return NULL or a valid Node if the search was successful.
+     */
+    inline 
+    const aiNode* FindNode(const aiString& name) const {
+        return FindNode(name.data);
+    }
+
+    inline 
+    aiNode* FindNode(const aiString& name) {
+        return FindNode(name.data);
+    }
+
+    const aiNode* FindNode(const char* name) const;
+
+    aiNode* FindNode(const char* name);
+
+    /**
+     * @brief   Will add new children.
+     * @param   numChildren  Number of children to add.
+     * @param   children     The array with pointers showing to the children.
+     */
+    void addChildren(unsigned int numChildren, aiNode **children);
+#endif // __cplusplus
+};
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+// -------------------------------------------------------------------------------
+/**
+ * Specifies that the scene data structure that was imported is not complete.
+ * This flag bypasses some internal validations and allows the import
+ * of animation skeletons, material libraries or camera animation paths
+ * using Assimp. Most applications won't support such data.
+ */
+#define AI_SCENE_FLAGS_INCOMPLETE   0x1
+
+/**
+ * This flag is set by the validation postprocess-step (aiPostProcess_ValidateDS)
+ * if the validation is successful. In a validated scene you can be sure that
+ * any cross references in the data structure (e.g. vertex indices) are valid.
+ */
+#define AI_SCENE_FLAGS_VALIDATED    0x2
+
+/**
+ * This flag is set by the validation postprocess-step (aiPostProcess_ValidateDS)
+ * if the validation is successful but some issues have been found.
+ * This can for example mean that a texture that does not exist is referenced
+ * by a material or that the bone weights for a vertex don't sum to 1.0 ... .
+ * In most cases you should still be able to use the import. This flag could
+ * be useful for applications which don't capture Assimp's log output.
+ */
+#define AI_SCENE_FLAGS_VALIDATION_WARNING   0x4
+
+/**
+ * This flag is currently only set by the aiProcess_JoinIdenticalVertices step.
+ * It indicates that the vertices of the output meshes aren't in the internal
+ * verbose format anymore. In the verbose format all vertices are unique,
+ * no vertex is ever referenced by more than one face.
+ */
+#define AI_SCENE_FLAGS_NON_VERBOSE_FORMAT   0x8
+
+ /**
+ * Denotes pure height-map terrain data. Pure terrains usually consist of quads,
+ * sometimes triangles, in a regular grid. The x,y coordinates of all vertex
+ * positions refer to the x,y coordinates on the terrain height map, the z-axis
+ * stores the elevation at a specific point.
+ *
+ * TER (Terragen) and HMP (3D Game Studio) are height map formats.
+ * @note Assimp is probably not the best choice for loading *huge* terrains -
+ * fully triangulated data takes extremely much free store and should be avoided
+ * as long as possible (typically you'll do the triangulation when you actually
+ * need to render it).
+ */
+#define AI_SCENE_FLAGS_TERRAIN 0x10
+
+ /**
+ * Specifies that the scene data can be shared between structures. For example:
+ * one vertex in few faces. \ref AI_SCENE_FLAGS_NON_VERBOSE_FORMAT can not be
+ * used for this because \ref AI_SCENE_FLAGS_NON_VERBOSE_FORMAT has internal
+ * meaning about postprocessing steps.
+ */
+#define AI_SCENE_FLAGS_ALLOW_SHARED			0x20
+
+// -------------------------------------------------------------------------------
+/** The root structure of the imported data.
+ *
+ *  Everything that was imported from the given file can be accessed from here.
+ *  Objects of this class are generally maintained and owned by Assimp, not
+ *  by the caller. You shouldn't want to instance it, nor should you ever try to
+ *  delete a given scene on your own.
+ */
+// -------------------------------------------------------------------------------
+struct aiScene
+{
+    /** Any combination of the AI_SCENE_FLAGS_XXX flags. By default
+    * this value is 0, no flags are set. Most applications will
+    * want to reject all scenes with the AI_SCENE_FLAGS_INCOMPLETE
+    * bit set.
+    */
+    unsigned int mFlags;
+
+    /** The root node of the hierarchy.
+    *
+    * There will always be at least the root node if the import
+    * was successful (and no special flags have been set).
+    * Presence of further nodes depends on the format and content
+    * of the imported file.
+    */
+    C_STRUCT aiNode* mRootNode;
+
+    /** The number of meshes in the scene. */
+    unsigned int mNumMeshes;
+
+    /** The array of meshes.
+    *
+    * Use the indices given in the aiNode structure to access
+    * this array. The array is mNumMeshes in size. If the
+    * AI_SCENE_FLAGS_INCOMPLETE flag is not set there will always
+    * be at least ONE material.
+    */
+    C_STRUCT aiMesh** mMeshes;
+
+    /** The number of materials in the scene. */
+    unsigned int mNumMaterials;
+
+    /** The array of materials.
+    *
+    * Use the index given in each aiMesh structure to access this
+    * array. The array is mNumMaterials in size. If the
+    * AI_SCENE_FLAGS_INCOMPLETE flag is not set there will always
+    * be at least ONE material.
+    */
+    C_STRUCT aiMaterial** mMaterials;
+
+    /** The number of animations in the scene. */
+    unsigned int mNumAnimations;
+
+    /** The array of animations.
+    *
+    * All animations imported from the given file are listed here.
+    * The array is mNumAnimations in size.
+    */
+    C_STRUCT aiAnimation** mAnimations;
+
+    /** The number of textures embedded into the file */
+    unsigned int mNumTextures;
+
+    /** The array of embedded textures.
+    *
+    * Not many file formats embed their textures into the file.
+    * An example is Quake's MDL format (which is also used by
+    * some GameStudio versions)
+    */
+    C_STRUCT aiTexture** mTextures;
+
+    /** The number of light sources in the scene. Light sources
+    * are fully optional, in most cases this attribute will be 0
+        */
+    unsigned int mNumLights;
+
+    /** The array of light sources.
+    *
+    * All light sources imported from the given file are
+    * listed here. The array is mNumLights in size.
+    */
+    C_STRUCT aiLight** mLights;
+
+    /** The number of cameras in the scene. Cameras
+    * are fully optional, in most cases this attribute will be 0
+        */
+    unsigned int mNumCameras;
+
+    /** The array of cameras.
+    *
+    * All cameras imported from the given file are listed here.
+    * The array is mNumCameras in size. The first camera in the
+    * array (if existing) is the default camera view into
+    * the scene.
+    */
+    C_STRUCT aiCamera** mCameras;
+
+    /**
+     *  @brief  The global metadata assigned to the scene itself.
+     *
+     *  This data contains global metadata which belongs to the scene like 
+     *  unit-conversions, versions, vendors or other model-specific data. This 
+     *  can be used to store format-specific metadata as well.
+     */
+    C_STRUCT aiMetadata* mMetaData;
+
+
+#ifdef __cplusplus
+
+    //! Default constructor - set everything to 0/NULL
+    ASSIMP_API aiScene();
+
+    //! Destructor
+    ASSIMP_API ~aiScene();
+
+    //! Check whether the scene contains meshes
+    //! Unless no special scene flags are set this will always be true.
+    inline bool HasMeshes() const { 
+        return mMeshes != NULL && mNumMeshes > 0; 
+    }
+
+    //! Check whether the scene contains materials
+    //! Unless no special scene flags are set this will always be true.
+    inline bool HasMaterials() const { 
+        return mMaterials != NULL && mNumMaterials > 0; 
+    }
+
+    //! Check whether the scene contains lights
+    inline bool HasLights() const { 
+        return mLights != NULL && mNumLights > 0; 
+    }
+
+    //! Check whether the scene contains textures
+    inline bool HasTextures() const {
+        return mTextures != NULL && mNumTextures > 0; 
+    }
+
+    //! Check whether the scene contains cameras
+    inline bool HasCameras() const {
+        return mCameras != NULL && mNumCameras > 0; 
+    }
+
+    //! Check whether the scene contains animations
+    inline bool HasAnimations() const { 
+        return mAnimations != NULL && mNumAnimations > 0; 
+    }
+
+    //! Returns a short filename from a full path
+    static const char* GetShortFilename(const char* filename) {
+        const char* lastSlash = strrchr(filename, '/');
+        if (lastSlash == nullptr) {
+            lastSlash = strrchr(filename, '\\');
+        }
+        const char* shortFilename = lastSlash != nullptr ? lastSlash + 1 : filename;
+        return shortFilename;
+    }
+
+    //! Returns an embedded texture
+    const aiTexture* GetEmbeddedTexture(const char* filename) const {
+        const char* shortFilename = GetShortFilename(filename);
+        for (unsigned int i = 0; i < mNumTextures; i++) {
+            const char* shortTextureFilename = GetShortFilename(mTextures[i]->mFilename.C_Str());
+            if (strcmp(shortTextureFilename, shortFilename) == 0) {
+                return mTextures[i];
+            }
+        }
+        return nullptr;
+    }
+#endif // __cplusplus
+
+    /**  Internal data, do not touch */
+#ifdef __cplusplus
+    void* mPrivate;
+#else
+    char* mPrivate;
+#endif
+
+};
+
+#ifdef __cplusplus
+} //! namespace Assimp
+#endif
+
+#endif // AI_SCENE_H_INC
diff --git a/thirdparty/assimp/include/assimp/texture.h b/thirdparty/assimp/include/assimp/texture.h
new file mode 100644
index 0000000000..dc6cbef65c
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/texture.h
@@ -0,0 +1,227 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file texture.h
+ *  @brief Defines texture helper structures for the library
+ *
+ * Used for file formats which embed their textures into the model file.
+ * Supported are both normal textures, which are stored as uncompressed
+ * pixels, and "compressed" textures, which are stored in a file format
+ * such as PNG or TGA.
+ */
+#pragma once
+#ifndef AI_TEXTURE_H_INC
+#define AI_TEXTURE_H_INC
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+// --------------------------------------------------------------------------------
+
+/** \def AI_EMBEDDED_TEXNAME_PREFIX
+ * \ref AI_MAKE_EMBEDDED_TEXNAME
+ */
+#ifndef AI_EMBEDDED_TEXNAME_PREFIX
+#   define AI_EMBEDDED_TEXNAME_PREFIX	"*"
+#endif
+
+/** @def AI_MAKE_EMBEDDED_TEXNAME
+ *  Used to build the reserved path name used by the material system to
+ *  reference textures that are embedded into their corresponding
+ *  model files. The parameter specifies the index of the texture
+ *  (zero-based, in the aiScene::mTextures array)
+ */
+#if (!defined AI_MAKE_EMBEDDED_TEXNAME)
+#   define AI_MAKE_EMBEDDED_TEXNAME(_n_) AI_EMBEDDED_TEXNAME_PREFIX # _n_
+#endif
+
+
+#include "./Compiler/pushpack1.h"
+
+// --------------------------------------------------------------------------------
+/** @brief Helper structure to represent a texel in a ARGB8888 format
+*
+*  Used by aiTexture.
+*/
+struct aiTexel
+{
+    unsigned char b,g,r,a;
+
+#ifdef __cplusplus
+    //! Comparison operator
+    bool operator== (const aiTexel& other) const
+    {
+        return b == other.b && r == other.r &&
+               g == other.g && a == other.a;
+    }
+
+    //! Inverse comparison operator
+    bool operator!= (const aiTexel& other) const
+    {
+        return b != other.b || r != other.r ||
+               g != other.g || a != other.a;
+    }
+
+    //! Conversion to a floating-point 4d color
+    operator aiColor4D() const
+    {
+        return aiColor4D(r/255.f,g/255.f,b/255.f,a/255.f);
+    }
+#endif // __cplusplus
+
+} PACK_STRUCT;
+
+#include "./Compiler/poppack1.h"
+
+#define HINTMAXTEXTURELEN 9
+
+// --------------------------------------------------------------------------------
+/** Helper structure to describe an embedded texture
+ *
+ * Normally textures are contained in external files but some file formats embed
+ * them directly in the model file. There are two types of embedded textures:
+ * 1. Uncompressed textures. The color data is given in an uncompressed format.
+ * 2. Compressed textures stored in a file format like png or jpg. The raw file
+ * bytes are given so the application must utilize an image decoder (e.g. DevIL) to
+ * get access to the actual color data.
+ *
+ * Embedded textures are referenced from materials using strings like "*0", "*1", etc.
+ * as the texture paths (a single asterisk character followed by the
+ * zero-based index of the texture in the aiScene::mTextures array).
+ */
+struct aiTexture {
+    /** Width of the texture, in pixels
+     *
+     * If mHeight is zero the texture is compressed in a format
+     * like JPEG. In this case mWidth specifies the size of the
+     * memory area pcData is pointing to, in bytes.
+     */
+    unsigned int mWidth;
+
+    /** Height of the texture, in pixels
+     *
+     * If this value is zero, pcData points to an compressed texture
+     * in any format (e.g. JPEG).
+     */
+    unsigned int mHeight;
+
+    /** A hint from the loader to make it easier for applications
+     *  to determine the type of embedded textures.
+     *
+     * If mHeight != 0 this member is show how data is packed. Hint will consist of
+     * two parts: channel order and channel bitness (count of the bits for every
+     * color channel). For simple parsing by the viewer it's better to not omit
+     * absent color channel and just use 0 for bitness. For example:
+     * 1. Image contain RGBA and 8 bit per channel, achFormatHint == "rgba8888";
+     * 2. Image contain ARGB and 8 bit per channel, achFormatHint == "argb8888";
+     * 3. Image contain RGB and 5 bit for R and B channels and 6 bit for G channel, achFormatHint == "rgba5650";
+     * 4. One color image with B channel and 1 bit for it, achFormatHint == "rgba0010";
+     * If mHeight == 0 then achFormatHint is set set to '\\0\\0\\0\\0' if the loader has no additional
+     * information about the texture file format used OR the
+     * file extension of the format without a trailing dot. If there
+     * are multiple file extensions for a format, the shortest
+     * extension is chosen (JPEG maps to 'jpg', not to 'jpeg').
+     * E.g. 'dds\\0', 'pcx\\0', 'jpg\\0'.  All characters are lower-case.
+     * The fourth character will always be '\\0'.
+     */
+    char achFormatHint[ HINTMAXTEXTURELEN ];// 8 for string + 1 for terminator.
+
+    /** Data of the texture.
+     *
+     * Points to an array of mWidth * mHeight aiTexel's.
+     * The format of the texture data is always ARGB8888 to
+     * make the implementation for user of the library as easy
+     * as possible. If mHeight = 0 this is a pointer to a memory
+     * buffer of size mWidth containing the compressed texture
+     * data. Good luck, have fun!
+     */
+    C_STRUCT aiTexel* pcData;
+
+    /** Texture original filename
+    *
+    * Used to get the texture reference
+    */
+    C_STRUCT aiString mFilename;
+
+#ifdef __cplusplus
+
+    //! For compressed textures (mHeight == 0): compare the
+    //! format hint against a given string.
+    //! @param s Input string. 3 characters are maximally processed.
+    //!        Example values: "jpg", "png"
+    //! @return true if the given string matches the format hint
+    bool CheckFormat(const char* s) const {
+        if (nullptr == s) {
+            return false;
+        }
+
+		return (0 == ::strncmp(achFormatHint, s, sizeof(achFormatHint)));
+    }
+
+    // Construction
+    aiTexture() AI_NO_EXCEPT
+    : mWidth(0)
+    , mHeight(0)
+    , pcData(nullptr)
+    , mFilename() {
+        achFormatHint[0] = achFormatHint[1] = 0;
+        achFormatHint[2] = achFormatHint[3] = 0;
+    }
+
+    // Destruction
+    ~aiTexture () {
+        delete[] pcData;
+    }
+#endif
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AI_TEXTURE_H_INC
diff --git a/thirdparty/assimp/include/assimp/types.h b/thirdparty/assimp/include/assimp/types.h
new file mode 100644
index 0000000000..748e4851f3
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/types.h
@@ -0,0 +1,529 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file types.h
+ *  Basic data types and primitives, such as vectors or colors.
+ */
+#pragma once
+#ifndef AI_TYPES_H_INC
+#define AI_TYPES_H_INC
+
+// Some runtime headers
+#include <sys/types.h>
+#include <stddef.h>
+#include <string.h>
+#include <limits.h>
+
+// Our compile configuration
+#include "defs.h"
+
+// Some types moved to separate header due to size of operators
+#include "vector3.h"
+#include "vector2.h"
+#include "color4.h"
+#include "matrix3x3.h"
+#include "matrix4x4.h"
+#include "quaternion.h"
+
+#ifdef __cplusplus
+#include <cstring>
+#include <new>      // for std::nothrow_t
+#include <string>   // for aiString::Set(const std::string&)
+
+namespace Assimp    {
+    //! @cond never
+namespace Intern        {
+    // --------------------------------------------------------------------
+    /** @brief Internal helper class to utilize our internal new/delete
+     *    routines for allocating object of this and derived classes.
+     *
+     * By doing this you can safely share class objects between Assimp
+     * and the application - it works even over DLL boundaries. A good
+     * example is the #IOSystem where the application allocates its custom
+     * #IOSystem, then calls #Importer::SetIOSystem(). When the Importer
+     * destructs, Assimp calls operator delete on the stored #IOSystem.
+     * If it lies on a different heap than Assimp is working with,
+     * the application is determined to crash.
+     */
+    // --------------------------------------------------------------------
+#ifndef SWIG
+    struct ASSIMP_API AllocateFromAssimpHeap    {
+        // http://www.gotw.ca/publications/mill15.htm
+
+        // new/delete overload
+        void *operator new    ( size_t num_bytes) /* throw( std::bad_alloc ) */;
+        void *operator new    ( size_t num_bytes, const std::nothrow_t& ) throw();
+        void  operator delete ( void* data);
+
+        // array new/delete overload
+        void *operator new[]    ( size_t num_bytes) /* throw( std::bad_alloc ) */;
+        void *operator new[]    ( size_t num_bytes, const std::nothrow_t& )  throw();
+        void  operator delete[] ( void* data);
+
+    }; // struct AllocateFromAssimpHeap
+#endif
+} // namespace Intern
+    //! @endcond
+} // namespace Assimp
+
+extern "C" {
+#endif
+
+/** Maximum dimension for strings, ASSIMP strings are zero terminated. */
+#ifdef __cplusplus
+    static const size_t MAXLEN = 1024;
+#else
+#   define MAXLEN 1024
+#endif
+
+// ----------------------------------------------------------------------------------
+/** Represents a plane in a three-dimensional, euclidean space
+*/
+struct aiPlane {
+#ifdef __cplusplus
+    aiPlane () AI_NO_EXCEPT : a(0.f), b(0.f), c(0.f), d(0.f) {}
+    aiPlane (ai_real _a, ai_real _b, ai_real _c, ai_real _d)
+        : a(_a), b(_b), c(_c), d(_d) {}
+
+    aiPlane (const aiPlane& o) : a(o.a), b(o.b), c(o.c), d(o.d) {}
+
+#endif // !__cplusplus
+
+    //! Plane equation
+    ai_real a,b,c,d;
+}; // !struct aiPlane
+
+// ----------------------------------------------------------------------------------
+/** Represents a ray
+*/
+struct aiRay {
+#ifdef __cplusplus
+    aiRay () AI_NO_EXCEPT {}
+    aiRay (const aiVector3D& _pos, const aiVector3D& _dir)
+        : pos(_pos), dir(_dir) {}
+
+    aiRay (const aiRay& o) : pos (o.pos), dir (o.dir) {}
+
+#endif // !__cplusplus
+
+    //! Position and direction of the ray
+    C_STRUCT aiVector3D pos, dir;
+}; // !struct aiRay
+
+// ----------------------------------------------------------------------------------
+/** Represents a color in Red-Green-Blue space.
+*/
+struct aiColor3D
+{
+#ifdef __cplusplus
+    aiColor3D () AI_NO_EXCEPT : r(0.0f), g(0.0f), b(0.0f) {}
+    aiColor3D (ai_real _r, ai_real _g, ai_real _b) : r(_r), g(_g), b(_b) {}
+    explicit aiColor3D (ai_real _r) : r(_r), g(_r), b(_r) {}
+    aiColor3D (const aiColor3D& o) : r(o.r), g(o.g), b(o.b) {}
+
+    /** Component-wise comparison */
+    // TODO: add epsilon?
+    bool operator == (const aiColor3D& other) const
+        {return r == other.r && g == other.g && b == other.b;}
+
+    /** Component-wise inverse comparison */
+    // TODO: add epsilon?
+    bool operator != (const aiColor3D& other) const
+        {return r != other.r || g != other.g || b != other.b;}
+
+    /** Component-wise comparison */
+    // TODO: add epsilon?
+    bool operator < (const aiColor3D& other) const {
+        return r < other.r || ( r == other.r && (g < other.g || (g == other.g && b < other.b ) ) );
+    }
+
+    /** Component-wise addition */
+    aiColor3D operator+(const aiColor3D& c) const {
+        return aiColor3D(r+c.r,g+c.g,b+c.b);
+    }
+
+    /** Component-wise subtraction */
+    aiColor3D operator-(const aiColor3D& c) const {
+        return aiColor3D(r-c.r,g-c.g,b-c.b);
+    }
+
+    /** Component-wise multiplication */
+    aiColor3D operator*(const aiColor3D& c) const {
+        return aiColor3D(r*c.r,g*c.g,b*c.b);
+    }
+
+    /** Multiply with a scalar */
+    aiColor3D operator*(ai_real f) const {
+        return aiColor3D(r*f,g*f,b*f);
+    }
+
+    /** Access a specific color component */
+    ai_real operator[](unsigned int i) const {
+        return *(&r + i);
+    }
+
+    /** Access a specific color component */
+    ai_real& operator[](unsigned int i) {
+        if ( 0 == i ) {
+            return r;
+        } else if ( 1 == i ) {
+            return g;
+        } else if ( 2 == i ) {
+            return b;
+        }
+        return r;
+    }
+
+    /** Check whether a color is black */
+    bool IsBlack() const {
+        static const ai_real epsilon = ai_real(10e-3);
+        return std::fabs( r ) < epsilon && std::fabs( g ) < epsilon && std::fabs( b ) < epsilon;
+    }
+
+#endif // !__cplusplus
+
+    //! Red, green and blue color values
+    ai_real r, g, b;
+};  // !struct aiColor3D
+
+// ----------------------------------------------------------------------------------
+/** Represents an UTF-8 string, zero byte terminated.
+ *
+ *  The character set of an aiString is explicitly defined to be UTF-8. This Unicode
+ *  transformation was chosen in the belief that most strings in 3d files are limited
+ *  to ASCII, thus the character set needed to be strictly ASCII compatible.
+ *
+ *  Most text file loaders provide proper Unicode input file handling, special unicode
+ *  characters are correctly transcoded to UTF8 and are kept throughout the libraries'
+ *  import pipeline.
+ *
+ *  For most applications, it will be absolutely sufficient to interpret the
+ *  aiString as ASCII data and work with it as one would work with a plain char*.
+ *  Windows users in need of proper support for i.e asian characters can use the
+ *  MultiByteToWideChar(), WideCharToMultiByte() WinAPI functionality to convert the
+ *  UTF-8 strings to their working character set (i.e. MBCS, WideChar).
+ *
+ *  We use this representation instead of std::string to be C-compatible. The
+ *  (binary) length of such a string is limited to MAXLEN characters (including the
+ *  the terminating zero).
+*/
+struct aiString
+{
+#ifdef __cplusplus
+    /** Default constructor, the string is set to have zero length */
+    aiString() AI_NO_EXCEPT
+    : length( 0 ) {
+        data[0] = '\0';
+
+#ifdef ASSIMP_BUILD_DEBUG
+        // Debug build: overwrite the string on its full length with ESC (27)
+        memset(data+1,27,MAXLEN-1);
+#endif
+    }
+
+    /** Copy constructor */
+    aiString(const aiString& rOther) :
+        length(rOther.length)
+    {
+        // Crop the string to the maximum length
+        length = length>=MAXLEN?MAXLEN-1:length;
+        memcpy( data, rOther.data, length);
+        data[length] = '\0';
+    }
+
+    /** Constructor from std::string */
+    explicit aiString(const std::string& pString) :
+        length(pString.length())
+    {
+        length = length>=MAXLEN?MAXLEN-1:length;
+        memcpy( data, pString.c_str(), length);
+        data[length] = '\0';
+    }
+
+    /** Copy a std::string to the aiString */
+    void Set( const std::string& pString) {
+        if( pString.length() > MAXLEN - 1) {
+            return;
+        }
+        length = pString.length();
+        memcpy( data, pString.c_str(), length);
+        data[length] = 0;
+    }
+
+    /** Copy a const char* to the aiString */
+    void Set( const char* sz) {
+        const size_t len = ::strlen(sz);
+        if( len > MAXLEN - 1) {
+            return;
+        }
+        length = len;
+        memcpy( data, sz, len);
+        data[len] = 0;
+    }
+
+
+    /** Assignment operator */
+    aiString& operator = (const aiString &rOther) {
+        if (this == &rOther) {
+            return *this;
+        }
+
+        length = rOther.length;;
+        memcpy( data, rOther.data, length);
+        data[length] = '\0';
+        return *this;
+    }
+
+
+    /** Assign a const char* to the string */
+    aiString& operator = (const char* sz) {
+        Set(sz);
+        return *this;
+    }
+
+    /** Assign a cstd::string to the string */
+    aiString& operator = ( const std::string& pString) {
+        Set(pString);
+        return *this;
+    }
+
+    /** Comparison operator */
+    bool operator==(const aiString& other) const {
+        return  (length == other.length && 0 == memcmp(data,other.data,length));
+    }
+
+    /** Inverse comparison operator */
+    bool operator!=(const aiString& other) const {
+        return  (length != other.length || 0 != memcmp(data,other.data,length));
+    }
+
+    /** Append a string to the string */
+    void Append (const char* app)   {
+        const size_t len = ::strlen(app);
+        if (!len) {
+            return;
+        }
+        if (length + len >= MAXLEN) {
+            return;
+        }
+
+        memcpy(&data[length],app,len+1);
+        length += len;
+    }
+
+    /** Clear the string - reset its length to zero */
+    void Clear ()   {
+        length  = 0;
+        data[0] = '\0';
+
+#ifdef ASSIMP_BUILD_DEBUG
+        // Debug build: overwrite the string on its full length with ESC (27)
+        memset(data+1,27,MAXLEN-1);
+#endif
+    }
+
+    /** Returns a pointer to the underlying zero-terminated array of characters */
+    const char* C_Str() const {
+        return data;
+    }
+
+#endif // !__cplusplus
+
+    /** Binary length of the string excluding the terminal 0. This is NOT the
+     *  logical length of strings containing UTF-8 multi-byte sequences! It's
+     *  the number of bytes from the beginning of the string to its end.*/
+    size_t length;
+
+    /** String buffer. Size limit is MAXLEN */
+    char data[MAXLEN];
+} ;  // !struct aiString
+
+
+// ----------------------------------------------------------------------------------
+/** Standard return type for some library functions.
+ * Rarely used, and if, mostly in the C API.
+ */
+typedef enum aiReturn
+{
+    /** Indicates that a function was successful */
+    aiReturn_SUCCESS = 0x0,
+
+    /** Indicates that a function failed */
+    aiReturn_FAILURE = -0x1,
+
+    /** Indicates that not enough memory was available
+     * to perform the requested operation
+     */
+    aiReturn_OUTOFMEMORY = -0x3,
+
+    /** @cond never
+     *  Force 32-bit size enum
+     */
+    _AI_ENFORCE_ENUM_SIZE = 0x7fffffff
+
+    /// @endcond
+} aiReturn;  // !enum aiReturn
+
+// just for backwards compatibility, don't use these constants anymore
+#define AI_SUCCESS     aiReturn_SUCCESS
+#define AI_FAILURE     aiReturn_FAILURE
+#define AI_OUTOFMEMORY aiReturn_OUTOFMEMORY
+
+// ----------------------------------------------------------------------------------
+/** Seek origins (for the virtual file system API).
+ *  Much cooler than using SEEK_SET, SEEK_CUR or SEEK_END.
+ */
+enum aiOrigin
+{
+    /** Beginning of the file */
+    aiOrigin_SET = 0x0,
+
+    /** Current position of the file pointer */
+    aiOrigin_CUR = 0x1,
+
+    /** End of the file, offsets must be negative */
+    aiOrigin_END = 0x2,
+
+    /**  @cond never
+     *   Force 32-bit size enum
+     */
+    _AI_ORIGIN_ENFORCE_ENUM_SIZE = 0x7fffffff
+
+    /// @endcond
+}; // !enum aiOrigin
+
+// ----------------------------------------------------------------------------------
+/** @brief Enumerates predefined log streaming destinations.
+ *  Logging to these streams can be enabled with a single call to
+ *   #LogStream::createDefaultStream.
+ */
+enum aiDefaultLogStream
+{
+    /** Stream the log to a file */
+    aiDefaultLogStream_FILE = 0x1,
+
+    /** Stream the log to std::cout */
+    aiDefaultLogStream_STDOUT = 0x2,
+
+    /** Stream the log to std::cerr */
+    aiDefaultLogStream_STDERR = 0x4,
+
+    /** MSVC only: Stream the log the the debugger
+     * (this relies on OutputDebugString from the Win32 SDK)
+     */
+    aiDefaultLogStream_DEBUGGER = 0x8,
+
+    /** @cond never
+     *  Force 32-bit size enum
+     */
+    _AI_DLS_ENFORCE_ENUM_SIZE = 0x7fffffff
+    /// @endcond
+}; // !enum aiDefaultLogStream
+
+// just for backwards compatibility, don't use these constants anymore
+#define DLS_FILE     aiDefaultLogStream_FILE
+#define DLS_STDOUT   aiDefaultLogStream_STDOUT
+#define DLS_STDERR   aiDefaultLogStream_STDERR
+#define DLS_DEBUGGER aiDefaultLogStream_DEBUGGER
+
+// ----------------------------------------------------------------------------------
+/** Stores the memory requirements for different components (e.g. meshes, materials,
+ *  animations) of an import. All sizes are in bytes.
+ *  @see Importer::GetMemoryRequirements()
+*/
+struct aiMemoryInfo
+{
+#ifdef __cplusplus
+
+    /** Default constructor */
+    aiMemoryInfo() AI_NO_EXCEPT
+        : textures   (0)
+        , materials  (0)
+        , meshes     (0)
+        , nodes      (0)
+        , animations (0)
+        , cameras    (0)
+        , lights     (0)
+        , total      (0)
+    {}
+
+#endif
+
+    /** Storage allocated for texture data */
+    unsigned int textures;
+
+    /** Storage allocated for material data  */
+    unsigned int materials;
+
+    /** Storage allocated for mesh data */
+    unsigned int meshes;
+
+    /** Storage allocated for node data */
+    unsigned int nodes;
+
+    /** Storage allocated for animation data */
+    unsigned int animations;
+
+    /** Storage allocated for camera data */
+    unsigned int cameras;
+
+    /** Storage allocated for light data */
+    unsigned int lights;
+
+    /** Total storage allocated for the full import. */
+    unsigned int total;
+}; // !struct aiMemoryInfo
+
+#ifdef __cplusplus
+}
+#endif //!  __cplusplus
+
+// Include implementation files
+#include "vector2.inl"
+#include "vector3.inl"
+#include "color4.inl"
+#include "quaternion.inl"
+#include "matrix3x3.inl"
+#include "matrix4x4.inl"
+
+#endif // AI_TYPES_H_INC
diff --git a/thirdparty/assimp/include/assimp/vector2.h b/thirdparty/assimp/include/assimp/vector2.h
new file mode 100644
index 0000000000..d5ef001542
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/vector2.h
@@ -0,0 +1,107 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file vector2.h
+ *  @brief 2D vector structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_VECTOR2D_H_INC
+#define AI_VECTOR2D_H_INC
+
+#ifdef __cplusplus
+#   include <cmath>
+#else
+#   include <math.h>
+#endif
+
+#include "defs.h"
+
+// ----------------------------------------------------------------------------------
+/** Represents a two-dimensional vector.
+ */
+
+#ifdef __cplusplus
+template <typename TReal>
+class aiVector2t {
+public:
+    aiVector2t () : x(), y() {}
+    aiVector2t (TReal _x, TReal _y) : x(_x), y(_y) {}
+    explicit aiVector2t (TReal _xyz) : x(_xyz), y(_xyz) {}
+    aiVector2t (const aiVector2t& o) = default;
+
+    void Set( TReal pX, TReal pY);
+    TReal SquareLength() const ;
+    TReal Length() const ;
+    aiVector2t& Normalize();
+
+    const aiVector2t& operator += (const aiVector2t& o);
+    const aiVector2t& operator -= (const aiVector2t& o);
+    const aiVector2t& operator *= (TReal f);
+    const aiVector2t& operator /= (TReal f);
+
+    TReal operator[](unsigned int i) const;
+
+    bool operator== (const aiVector2t& other) const;
+    bool operator!= (const aiVector2t& other) const;
+
+    bool Equal(const aiVector2t& other, TReal epsilon = 1e-6) const;
+
+    aiVector2t& operator= (TReal f);
+    const aiVector2t SymMul(const aiVector2t& o);
+
+    template <typename TOther>
+    operator aiVector2t<TOther> () const;
+
+    TReal x, y;
+};
+
+typedef aiVector2t<ai_real> aiVector2D;
+
+#else
+
+struct aiVector2D {
+    ai_real x, y;
+};
+
+#endif // __cplusplus
+
+#endif // AI_VECTOR2D_H_INC
diff --git a/thirdparty/assimp/include/assimp/vector2.inl b/thirdparty/assimp/include/assimp/vector2.inl
new file mode 100644
index 0000000000..3b7a7beabb
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/vector2.inl
@@ -0,0 +1,244 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  vector2.inl
+ *  @brief Inline implementation of aiVector2t<TReal> operators
+ */
+#pragma once
+#ifndef AI_VECTOR2D_INL_INC
+#define AI_VECTOR2D_INL_INC
+
+#ifdef __cplusplus
+#include "vector2.h"
+
+#include <cmath>
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiVector2t<TReal>::operator aiVector2t<TOther> () const {
+    return aiVector2t<TOther>(static_cast<TOther>(x),static_cast<TOther>(y));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+void aiVector2t<TReal>::Set( TReal pX, TReal pY) {
+    x = pX; y = pY;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+TReal aiVector2t<TReal>::SquareLength() const {
+    return x*x + y*y;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+TReal aiVector2t<TReal>::Length() const {
+    return std::sqrt( SquareLength());
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+aiVector2t<TReal>& aiVector2t<TReal>::Normalize() {
+    *this /= Length();
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator += (const aiVector2t& o) {
+    x += o.x; y += o.y;
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator -= (const aiVector2t& o) {
+    x -= o.x; y -= o.y;
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator *= (TReal f) {
+    x *= f; y *= f;
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator /= (TReal f) {
+    x /= f; y /= f;
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+TReal aiVector2t<TReal>::operator[](unsigned int i) const {
+	switch (i) {
+		case 0:
+			return x;
+		case 1:
+			return y;
+		default:
+			break;
+
+    }
+    return x;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+bool aiVector2t<TReal>::operator== (const aiVector2t& other) const {
+    return x == other.x && y == other.y;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+bool aiVector2t<TReal>::operator!= (const aiVector2t& other) const {
+    return x != other.x || y != other.y;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline
+bool aiVector2t<TReal>::Equal(const aiVector2t& other, TReal epsilon) const {
+    return
+        std::abs(x - other.x) <= epsilon &&
+        std::abs(y - other.y) <= epsilon;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+aiVector2t<TReal>& aiVector2t<TReal>::operator= (TReal f)   {
+    x = y = f;
+    return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal> aiVector2t<TReal>::SymMul(const aiVector2t& o) {
+    return aiVector2t(x*o.x,y*o.y);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// symmetric addition
+template <typename TReal>
+inline
+aiVector2t<TReal> operator + (const aiVector2t<TReal>& v1, const aiVector2t<TReal>& v2) {
+    return aiVector2t<TReal>( v1.x + v2.x, v1.y + v2.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// symmetric subtraction
+template <typename TReal>
+inline 
+aiVector2t<TReal> operator - (const aiVector2t<TReal>& v1, const aiVector2t<TReal>& v2) {
+    return aiVector2t<TReal>( v1.x - v2.x, v1.y - v2.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// scalar product
+template <typename TReal>
+inline 
+TReal operator * (const aiVector2t<TReal>& v1, const aiVector2t<TReal>& v2) {
+    return v1.x*v2.x + v1.y*v2.y;
+}
+
+// ------------------------------------------------------------------------------------------------
+// scalar multiplication
+template <typename TReal>
+inline 
+aiVector2t<TReal> operator * ( TReal f, const aiVector2t<TReal>& v) {
+    return aiVector2t<TReal>( f*v.x, f*v.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// and the other way around
+template <typename TReal>
+inline 
+aiVector2t<TReal> operator * ( const aiVector2t<TReal>& v, TReal f) {
+    return aiVector2t<TReal>( f*v.x, f*v.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// scalar division
+template <typename TReal>
+inline 
+aiVector2t<TReal> operator / ( const aiVector2t<TReal>& v, TReal f) {
+    return v * (1/f);
+}
+
+// ------------------------------------------------------------------------------------------------
+// vector division
+template <typename TReal>
+inline 
+aiVector2t<TReal> operator / ( const aiVector2t<TReal>& v, const aiVector2t<TReal>& v2) {
+    return aiVector2t<TReal>(v.x / v2.x,v.y / v2.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// vector negation
+template <typename TReal>
+inline 
+aiVector2t<TReal> operator - ( const aiVector2t<TReal>& v) {
+    return aiVector2t<TReal>( -v.x, -v.y);
+}
+
+#endif
+
+#endif // AI_VECTOR2D_INL_INC
diff --git a/thirdparty/assimp/include/assimp/vector3.h b/thirdparty/assimp/include/assimp/vector3.h
new file mode 100644
index 0000000000..7ff25cf0ad
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/vector3.h
@@ -0,0 +1,146 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file vector3.h
+ *  @brief 3D vector structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_VECTOR3D_H_INC
+#define AI_VECTOR3D_H_INC
+
+#ifdef __cplusplus
+#   include <cmath>
+#else
+#   include <math.h>
+#endif
+
+#include "defs.h"
+
+#ifdef __cplusplus
+
+template<typename TReal> class aiMatrix3x3t;
+template<typename TReal> class aiMatrix4x4t;
+
+// ---------------------------------------------------------------------------
+/** Represents a three-dimensional vector. */
+template <typename TReal>
+class aiVector3t
+{
+public:
+    aiVector3t() AI_NO_EXCEPT : x(), y(), z() {}
+    aiVector3t(TReal _x, TReal _y, TReal _z) : x(_x), y(_y), z(_z) {}
+    explicit aiVector3t (TReal _xyz ) : x(_xyz), y(_xyz), z(_xyz) {}
+    aiVector3t( const aiVector3t& o ) = default;
+
+public:
+
+    // combined operators
+    const aiVector3t& operator += (const aiVector3t& o);
+    const aiVector3t& operator -= (const aiVector3t& o);
+    const aiVector3t& operator *= (TReal f);
+    const aiVector3t& operator /= (TReal f);
+
+    // transform vector by matrix
+    aiVector3t& operator *= (const aiMatrix3x3t<TReal>& mat);
+    aiVector3t& operator *= (const aiMatrix4x4t<TReal>& mat);
+
+    // access a single element
+    TReal operator[](unsigned int i) const;
+    TReal& operator[](unsigned int i);
+
+    // comparison
+    bool operator== (const aiVector3t& other) const;
+    bool operator!= (const aiVector3t& other) const;
+    bool operator < (const aiVector3t& other) const;
+
+    bool Equal(const aiVector3t& other, TReal epsilon = 1e-6) const;
+
+    template <typename TOther>
+    operator aiVector3t<TOther> () const;
+
+public:
+    /** @brief Set the components of a vector
+     *  @param pX X component
+     *  @param pY Y component
+     *  @param pZ Z component  */
+    void Set( TReal pX, TReal pY, TReal pZ);
+
+    /** @brief Get the squared length of the vector
+     *  @return Square length */
+    TReal SquareLength() const;
+
+    /** @brief Get the length of the vector
+     *  @return length */
+    TReal Length() const;
+
+
+    /** @brief Normalize the vector */
+    aiVector3t& Normalize();
+
+    /** @brief Normalize the vector with extra check for zero vectors */
+    aiVector3t& NormalizeSafe();
+
+    /** @brief Componentwise multiplication of two vectors
+     *
+     *  Note that vec*vec yields the dot product.
+     *  @param o Second factor */
+    const aiVector3t SymMul(const aiVector3t& o);
+
+    TReal x, y, z;
+};
+
+
+typedef aiVector3t<ai_real> aiVector3D;
+
+#else
+
+struct aiVector3D {
+    ai_real x, y, z;
+};
+
+#endif // __cplusplus
+
+#ifdef __cplusplus
+
+#endif // __cplusplus
+
+#endif // AI_VECTOR3D_H_INC
diff --git a/thirdparty/assimp/include/assimp/vector3.inl b/thirdparty/assimp/include/assimp/vector3.inl
new file mode 100644
index 0000000000..2fce6eddee
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/vector3.inl
@@ -0,0 +1,309 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  vector3.inl
+ *  @brief Inline implementation of aiVector3t<TReal> operators
+ */
+#pragma once
+#ifndef AI_VECTOR3D_INL_INC
+#define AI_VECTOR3D_INL_INC
+
+#ifdef __cplusplus
+#include "vector3.h"
+
+#include <cmath>
+
+// ------------------------------------------------------------------------------------------------
+/** Transformation of a vector by a 3x3 matrix */
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator * (const aiMatrix3x3t<TReal>& pMatrix, const aiVector3t<TReal>& pVector) {
+    aiVector3t<TReal> res;
+    res.x = pMatrix.a1 * pVector.x + pMatrix.a2 * pVector.y + pMatrix.a3 * pVector.z;
+    res.y = pMatrix.b1 * pVector.x + pMatrix.b2 * pVector.y + pMatrix.b3 * pVector.z;
+    res.z = pMatrix.c1 * pVector.x + pMatrix.c2 * pVector.y + pMatrix.c3 * pVector.z;
+    return res;
+}
+
+// ------------------------------------------------------------------------------------------------
+/** Transformation of a vector by a 4x4 matrix */
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator * (const aiMatrix4x4t<TReal>& pMatrix, const aiVector3t<TReal>& pVector) {
+    aiVector3t<TReal> res;
+    res.x = pMatrix.a1 * pVector.x + pMatrix.a2 * pVector.y + pMatrix.a3 * pVector.z + pMatrix.a4;
+    res.y = pMatrix.b1 * pVector.x + pMatrix.b2 * pVector.y + pMatrix.b3 * pVector.z + pMatrix.b4;
+    res.z = pMatrix.c1 * pVector.x + pMatrix.c2 * pVector.y + pMatrix.c3 * pVector.z + pMatrix.c4;
+    return res;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiVector3t<TReal>::operator aiVector3t<TOther> () const {
+    return aiVector3t<TOther>(static_cast<TOther>(x),static_cast<TOther>(y),static_cast<TOther>(z));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+void aiVector3t<TReal>::Set( TReal pX, TReal pY, TReal pZ) {
+    x = pX;
+    y = pY;
+    z = pZ;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal aiVector3t<TReal>::SquareLength() const {
+    return x*x + y*y + z*z;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal aiVector3t<TReal>::Length() const {
+    return std::sqrt( SquareLength());
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal>& aiVector3t<TReal>::Normalize() {
+    *this /= Length();
+
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal>& aiVector3t<TReal>::NormalizeSafe() {
+    TReal len = Length();
+    if ( len > static_cast< TReal >( 0 ) ) {
+        *this /= len;
+    }
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiVector3t<TReal>& aiVector3t<TReal>::operator += (const aiVector3t<TReal>& o) {
+    x += o.x;
+    y += o.y;
+    z += o.z;
+
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiVector3t<TReal>& aiVector3t<TReal>::operator -= (const aiVector3t<TReal>& o) {
+    x -= o.x;
+    y -= o.y;
+    z -= o.z;
+
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiVector3t<TReal>& aiVector3t<TReal>::operator *= (TReal f) {
+    x *= f;
+    y *= f;
+    z *= f;
+
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiVector3t<TReal>& aiVector3t<TReal>::operator /= (TReal f) {
+    const TReal invF = (TReal) 1.0 / f;
+    x *= invF;
+    y *= invF;
+    z *= invF;
+
+    return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal>& aiVector3t<TReal>::operator *= (const aiMatrix3x3t<TReal>& mat){
+    return (*this =  mat * (*this));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal>& aiVector3t<TReal>::operator *= (const aiMatrix4x4t<TReal>& mat){
+    return (*this = mat * (*this));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal aiVector3t<TReal>::operator[](unsigned int i) const {
+    switch (i) {
+        case 0:
+            return x;
+        case 1:
+            return y;
+        case 2:
+            return z;
+        default:
+            break;
+    }
+    return x;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal& aiVector3t<TReal>::operator[](unsigned int i) {
+//    return *(&x + i);
+    switch (i) {
+        case 0:
+            return x;
+        case 1:
+            return y;
+        case 2:
+            return z;
+        default:
+            break;
+    }
+    return x;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiVector3t<TReal>::operator== (const aiVector3t<TReal>& other) const {
+    return x == other.x && y == other.y && z == other.z;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiVector3t<TReal>::operator!= (const aiVector3t<TReal>& other) const {
+    return x != other.x || y != other.y || z != other.z;
+}
+// ---------------------------------------------------------------------------
+template<typename TReal>
+AI_FORCE_INLINE
+bool aiVector3t<TReal>::Equal(const aiVector3t<TReal>& other, TReal epsilon) const {
+    return
+        std::abs(x - other.x) <= epsilon &&
+        std::abs(y - other.y) <= epsilon &&
+        std::abs(z - other.z) <= epsilon;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiVector3t<TReal>::operator < (const aiVector3t<TReal>& other) const {
+    return x != other.x ? x < other.x : y != other.y ? y < other.y : z < other.z;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiVector3t<TReal> aiVector3t<TReal>::SymMul(const aiVector3t<TReal>& o) {
+    return aiVector3t<TReal>(x*o.x,y*o.y,z*o.z);
+}
+// ------------------------------------------------------------------------------------------------
+// symmetric addition
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator + (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+    return aiVector3t<TReal>( v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
+}
+// ------------------------------------------------------------------------------------------------
+// symmetric subtraction
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator - (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+    return aiVector3t<TReal>( v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
+}
+// ------------------------------------------------------------------------------------------------
+// scalar product
+template <typename TReal>
+AI_FORCE_INLINE
+TReal operator * (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+    return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
+}
+// ------------------------------------------------------------------------------------------------
+// scalar multiplication
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator * ( TReal f, const aiVector3t<TReal>& v) {
+    return aiVector3t<TReal>( f*v.x, f*v.y, f*v.z);
+}
+// ------------------------------------------------------------------------------------------------
+// and the other way around
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator * ( const aiVector3t<TReal>& v, TReal f) {
+    return aiVector3t<TReal>( f*v.x, f*v.y, f*v.z);
+}
+// ------------------------------------------------------------------------------------------------
+// scalar division
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator / ( const aiVector3t<TReal>& v, TReal f) {
+    return v * (1/f);
+}
+// ------------------------------------------------------------------------------------------------
+// vector division
+template <typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator / ( const aiVector3t<TReal>& v, const aiVector3t<TReal>& v2) {
+    return aiVector3t<TReal>(v.x / v2.x,v.y / v2.y,v.z / v2.z);
+}
+// ------------------------------------------------------------------------------------------------
+// cross product
+template<typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator ^ ( const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+    return aiVector3t<TReal>( v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x);
+}
+// ------------------------------------------------------------------------------------------------
+// vector negation
+template<typename TReal>
+AI_FORCE_INLINE
+aiVector3t<TReal> operator - ( const aiVector3t<TReal>& v) {
+    return aiVector3t<TReal>( -v.x, -v.y, -v.z);
+}
+
+// ------------------------------------------------------------------------------------------------
+
+#endif // __cplusplus
+#endif // AI_VECTOR3D_INL_INC
diff --git a/thirdparty/assimp/include/assimp/version.h b/thirdparty/assimp/include/assimp/version.h
new file mode 100644
index 0000000000..c62a40e118
--- /dev/null
+++ b/thirdparty/assimp/include/assimp/version.h
@@ -0,0 +1,115 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file  version.h
+ *  @brief Functions to query the version of the Assimp runtime, check
+ *    compile flags, ...
+ */
+#pragma once
+#ifndef AI_VERSION_H_INC
+#define AI_VERSION_H_INC
+
+#include "defs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Returns a string with legal copyright and licensing information
+ *  about Assimp. The string may include multiple lines.
+ *  @return Pointer to static string.
+ */
+ASSIMP_API const char*  aiGetLegalString  (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the current minor version number of Assimp.
+ *  @return Minor version of the Assimp runtime the application was
+ *    linked/built against
+ */
+ASSIMP_API unsigned int aiGetVersionMinor (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the current major version number of Assimp.
+ *  @return Major version of the Assimp runtime the application was
+ *    linked/built against
+ */
+ASSIMP_API unsigned int aiGetVersionMajor (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the repository revision of the Assimp runtime.
+ *  @return SVN Repository revision number of the Assimp runtime the
+ *          application was linked/built against.
+ */
+ASSIMP_API unsigned int aiGetVersionRevision (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the branchname of the Assimp runtime.
+ *  @return The current branch name.
+ */
+ASSIMP_API const char *aiGetBranchName();
+
+//! Assimp was compiled as a shared object (Windows: DLL)
+#define ASSIMP_CFLAGS_SHARED  0x1
+//! Assimp was compiled against STLport
+#define ASSIMP_CFLAGS_STLPORT 0x2
+//! Assimp was compiled as a debug build
+#define ASSIMP_CFLAGS_DEBUG   0x4
+
+//! Assimp was compiled with ASSIMP_BUILD_BOOST_WORKAROUND defined
+#define ASSIMP_CFLAGS_NOBOOST           0x8
+//! Assimp was compiled with ASSIMP_BUILD_SINGLETHREADED defined
+#define ASSIMP_CFLAGS_SINGLETHREADED    0x10
+
+// ---------------------------------------------------------------------------
+/** @brief Returns assimp's compile flags
+ *  @return Any bitwise combination of the ASSIMP_CFLAGS_xxx constants.
+ */
+ASSIMP_API unsigned int aiGetCompileFlags (void);
+
+#ifdef __cplusplus
+} // end extern "C"
+#endif
+
+#endif // !! #ifndef AI_VERSION_H_INC
+
diff --git a/thirdparty/enet/godot.cpp b/thirdparty/enet/godot.cpp
index 2e1519b7b2..822a294781 100644
--- a/thirdparty/enet/godot.cpp
+++ b/thirdparty/enet/godot.cpp
@@ -95,7 +95,6 @@ ENetSocket enet_socket_create(ENetSocketType type) {
 	NetSocket *socket = NetSocket::create();
 	IP::Type ip_type = IP::TYPE_ANY;
 	socket->open(NetSocket::TYPE_UDP, ip_type);
-	socket->set_blocking_enabled(false);
 
 	return socket;
 }
@@ -216,6 +215,46 @@ int enet_socket_listen(ENetSocket socket, int backlog) {
 
 int enet_socket_set_option(ENetSocket socket, ENetSocketOption option, int value) {
 
+	NetSocket *sock = (NetSocket *)socket;
+
+	switch (option) {
+		case ENET_SOCKOPT_NONBLOCK: {
+			sock->set_blocking_enabled(value ? false : true);
+			return 0;
+		} break;
+
+		case ENET_SOCKOPT_BROADCAST: {
+			sock->set_broadcasting_enabled(value ? true : false);
+			return 0;
+		} break;
+
+		case ENET_SOCKOPT_REUSEADDR: {
+			sock->set_reuse_address_enabled(value ? true : false);
+			return 0;
+		} break;
+
+		case ENET_SOCKOPT_RCVBUF: {
+			return -1;
+		} break;
+
+		case ENET_SOCKOPT_SNDBUF: {
+			return -1;
+		} break;
+
+		case ENET_SOCKOPT_RCVTIMEO: {
+			return -1;
+		} break;
+
+		case ENET_SOCKOPT_SNDTIMEO: {
+			return -1;
+		} break;
+
+		case ENET_SOCKOPT_NODELAY: {
+			sock->set_tcp_no_delay_enabled(value ? true : false);
+			return 0;
+		} break;
+	}
+
 	return -1;
 }
 
diff --git a/thirdparty/freetype/include/freetype/config/ftconfig.h b/thirdparty/freetype/include/freetype/config/ftconfig.h
index eedebf4082..9466603377 100644
--- a/thirdparty/freetype/include/freetype/config/ftconfig.h
+++ b/thirdparty/freetype/include/freetype/config/ftconfig.h
@@ -1,39 +1,38 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftconfig.h                                                             */
-/*                                                                         */
-/*    ANSI-specific configuration file (specification only).               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This header file contains a number of macro definitions that are used */
-  /* by the rest of the engine.  Most of the macros here are automatically */
-  /* determined at compile time, and you should not need to change it to   */
-  /* port FreeType, except to compile the library with a non-ANSI          */
-  /* compiler.                                                             */
-  /*                                                                       */
-  /* Note however that if some specific modifications are needed, we       */
-  /* advise you to place a modified copy in your build directory.          */
-  /*                                                                       */
-  /* The build directory is usually `builds/<system>', and contains        */
-  /* system-specific files that are always included first when building    */
-  /* the library.                                                          */
-  /*                                                                       */
-  /* This ANSI version should stay in `include/config/'.                   */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftconfig.h
+ *
+ *   ANSI-specific configuration file (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This header file contains a number of macro definitions that are used by
+   * the rest of the engine.  Most of the macros here are automatically
+   * determined at compile time, and you should not need to change it to port
+   * FreeType, except to compile the library with a non-ANSI compiler.
+   *
+   * Note however that if some specific modifications are needed, we advise
+   * you to place a modified copy in your build directory.
+   *
+   * The build directory is usually `builds/<system>`, and contains
+   * system-specific files that are always included first when building the
+   * library.
+   *
+   * This ANSI version should stay in `include/config/`.
+   *
+   */
 
 #ifndef FTCONFIG_H_
 #define FTCONFIG_H_
@@ -46,32 +45,32 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*               PLATFORM-SPECIFIC CONFIGURATION MACROS                  */
-  /*                                                                       */
-  /* These macros can be toggled to suit a specific system.  The current   */
-  /* ones are defaults used to compile FreeType in an ANSI C environment   */
-  /* (16bit compilers are also supported).  Copy this file to your own     */
-  /* `builds/<system>' directory, and edit it to port the engine.          */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *              PLATFORM-SPECIFIC CONFIGURATION MACROS
+   *
+   * These macros can be toggled to suit a specific system.  The current ones
+   * are defaults used to compile FreeType in an ANSI C environment (16bit
+   * compilers are also supported).  Copy this file to your own
+   * `builds/<system>` directory, and edit it to port the engine.
+   *
+   */
 
 
-  /* There are systems (like the Texas Instruments 'C54x) where a `char' */
-  /* has 16 bits.  ANSI C says that sizeof(char) is always 1.  Since an  */
-  /* `int' has 16 bits also for this system, sizeof(int) gives 1 which   */
-  /* is probably unexpected.                                             */
-  /*                                                                     */
-  /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a      */
-  /* `char' type.                                                        */
+  /* There are systems (like the Texas Instruments 'C54x) where a `char`  */
+  /* has 16~bits.  ANSI~C says that `sizeof(char)` is always~1.  Since an */
+  /* `int` has 16~bits also for this system, `sizeof(int)` gives~1 which  */
+  /* is probably unexpected.                                              */
+  /*                                                                      */
+  /* `CHAR_BIT` (defined in `limits.h`) gives the number of bits in a     */
+  /* `char` type.                                                         */
 
 #ifndef FT_CHAR_BIT
 #define FT_CHAR_BIT  CHAR_BIT
 #endif
 
 
-  /* The size of an `int' type.  */
+  /* The size of an `int` type. */
 #if                                 FT_UINT_MAX == 0xFFFFUL
 #define FT_SIZEOF_INT  ( 16 / FT_CHAR_BIT )
 #elif                               FT_UINT_MAX == 0xFFFFFFFFUL
@@ -82,7 +81,7 @@ FT_BEGIN_HEADER
 #error "Unsupported size of `int' type!"
 #endif
 
-  /* The size of a `long' type.  A five-byte `long' (as used e.g. on the */
+  /* The size of a `long` type.  A five-byte `long` (as used e.g. on the */
   /* DM642) is recognized but avoided.                                   */
 #if                                  FT_ULONG_MAX == 0xFFFFFFFFUL
 #define FT_SIZEOF_LONG  ( 32 / FT_CHAR_BIT )
@@ -95,35 +94,35 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /* FT_UNUSED is a macro used to indicate that a given parameter is not  */
-  /* used -- this is only used to get rid of unpleasant compiler warnings */
+  /* `FT_UNUSED` indicates that a given parameter is not used --   */
+  /* this is only used to get rid of unpleasant compiler warnings. */
 #ifndef FT_UNUSED
 #define FT_UNUSED( arg )  ( (arg) = (arg) )
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                     AUTOMATIC CONFIGURATION MACROS                    */
-  /*                                                                       */
-  /* These macros are computed from the ones defined above.  Don't touch   */
-  /* their definition, unless you know precisely what you are doing.  No   */
-  /* porter should need to mess with them.                                 */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Mac support                                                           */
-  /*                                                                       */
-  /*   This is the only necessary change, so it is defined here instead    */
-  /*   providing a new configuration file.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                    AUTOMATIC CONFIGURATION MACROS
+   *
+   * These macros are computed from the ones defined above.  Don't touch
+   * their definition, unless you know precisely what you are doing.  No
+   * porter should need to mess with them.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * Mac support
+   *
+   *   This is the only necessary change, so it is defined here instead
+   *   providing a new configuration file.
+   */
 #if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) )
-  /* no Carbon frameworks for 64bit 10.4.x */
-  /* AvailabilityMacros.h is available since Mac OS X 10.2,        */
-  /* so guess the system version by maximum errno before inclusion */
+  /* No Carbon frameworks for 64bit 10.4.x.                         */
+  /* `AvailabilityMacros.h` is available since Mac OS X 10.2,       */
+  /* so guess the system version by maximum errno before inclusion. */
 #include <errno.h>
 #ifdef ECANCELED /* defined since 10.2 */
 #include "AvailabilityMacros.h"
@@ -143,7 +142,7 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /* Fix compiler warning with sgi compiler */
+  /* Fix compiler warning with sgi compiler. */
 #if defined( __sgi ) && !defined( __GNUC__ )
 #if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
 #pragma set woff 3505
@@ -151,33 +150,33 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    basic_types                                                        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   basic_types
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Int16                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for a 16bit signed integer type.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Int16
+   *
+   * @description:
+   *   A typedef for a 16bit signed integer type.
+   */
   typedef signed short  FT_Int16;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_UInt16                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for a 16bit unsigned integer type.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_UInt16
+   *
+   * @description:
+   *   A typedef for a 16bit unsigned integer type.
+   */
   typedef unsigned short  FT_UInt16;
 
   /* */
@@ -186,50 +185,50 @@ FT_BEGIN_HEADER
   /* this #if 0 ... #endif clause is for documentation purposes */
 #if 0
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Int32                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for a 32bit signed integer type.  The size depends on    */
-  /*    the configuration.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Int32
+   *
+   * @description:
+   *   A typedef for a 32bit signed integer type.  The size depends on the
+   *   configuration.
+   */
   typedef signed XXX  FT_Int32;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_UInt32                                                          */
-  /*                                                                       */
-  /*    A typedef for a 32bit unsigned integer type.  The size depends on  */
-  /*    the configuration.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_UInt32
+   *
+   *   A typedef for a 32bit unsigned integer type.  The size depends on the
+   *   configuration.
+   */
   typedef unsigned XXX  FT_UInt32;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Int64                                                           */
-  /*                                                                       */
-  /*    A typedef for a 64bit signed integer type.  The size depends on    */
-  /*    the configuration.  Only defined if there is real 64bit support;   */
-  /*    otherwise, it gets emulated with a structure (if necessary).       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Int64
+   *
+   *   A typedef for a 64bit signed integer type.  The size depends on the
+   *   configuration.  Only defined if there is real 64bit support;
+   *   otherwise, it gets emulated with a structure (if necessary).
+   */
   typedef signed XXX  FT_Int64;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_UInt64                                                          */
-  /*                                                                       */
-  /*    A typedef for a 64bit unsigned integer type.  The size depends on  */
-  /*    the configuration.  Only defined if there is real 64bit support;   */
-  /*    otherwise, it gets emulated with a structure (if necessary).       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_UInt64
+   *
+   *   A typedef for a 64bit unsigned integer type.  The size depends on the
+   *   configuration.  Only defined if there is real 64bit support;
+   *   otherwise, it gets emulated with a structure (if necessary).
+   */
   typedef unsigned XXX  FT_UInt64;
 
   /* */
@@ -251,7 +250,7 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /* look up an integer type that is at least 32 bits */
+  /* look up an integer type that is at least 32~bits */
 #if FT_SIZEOF_INT >= ( 32 / FT_CHAR_BIT )
 
   typedef int            FT_Fast;
@@ -265,22 +264,22 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /* determine whether we have a 64-bit int type for platforms without */
-  /* Autoconf                                                          */
+  /* determine whether we have a 64-bit `int` type for platforms without */
+  /* Autoconf                                                            */
 #if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
 
-  /* FT_LONG64 must be defined if a 64-bit type is available */
+  /* `FT_LONG64` must be defined if a 64-bit type is available */
 #define FT_LONG64
 #define FT_INT64   long
 #define FT_UINT64  unsigned long
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* A 64-bit data type may create compilation problems if you compile     */
-  /* in strict ANSI mode.  To avoid them, we disable other 64-bit data     */
-  /* types if __STDC__ is defined.  You can however ignore this rule       */
-  /* by defining the FT_CONFIG_OPTION_FORCE_INT64 configuration macro.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * A 64-bit data type may create compilation problems if you compile in
+   * strict ANSI mode.  To avoid them, we disable other 64-bit data types if
+   * `__STDC__` is defined.  You can however ignore this rule by defining the
+   * `FT_CONFIG_OPTION_FORCE_INT64` configuration macro.
+   */
 #elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
 
 #if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L
@@ -289,19 +288,19 @@ FT_BEGIN_HEADER
 #define FT_INT64   long long int
 #define FT_UINT64  unsigned long long int
 
-#elif defined( _MSC_VER ) && _MSC_VER >= 900  /* Visual C++ (and Intel C++) */
+#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
 
-  /* this compiler provides the __int64 type */
+  /* this compiler provides the `__int64` type */
 #define FT_LONG64
 #define FT_INT64   __int64
 #define FT_UINT64  unsigned __int64
 
 #elif defined( __BORLANDC__ )  /* Borland C++ */
 
-  /* XXXX: We should probably check the value of __BORLANDC__ in order */
-  /*       to test the compiler version.                               */
+  /* XXXX: We should probably check the value of `__BORLANDC__` in order */
+  /*       to test the compiler version.                                 */
 
-  /* this compiler provides the __int64 type */
+  /* this compiler provides the `__int64` type */
 #define FT_LONG64
 #define FT_INT64   __int64
 #define FT_UINT64  unsigned __int64
@@ -318,7 +317,7 @@ FT_BEGIN_HEADER
 
 #elif defined( __GNUC__ )
 
-  /* GCC provides the `long long' type */
+  /* GCC provides the `long long` type */
 #define FT_LONG64
 #define FT_INT64   long long int
 #define FT_UINT64  unsigned long long int
@@ -342,11 +341,11 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* miscellaneous                                                         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * miscellaneous
+   *
+   */
 
 
 #define FT_BEGIN_STMNT  do {
@@ -354,7 +353,7 @@ FT_BEGIN_HEADER
 #define FT_DUMMY_STMNT  FT_BEGIN_STMNT FT_END_STMNT
 
 
-  /* typeof condition taken from gnulib's `intprops.h' header file */
+  /* `typeof` condition taken from gnulib's `intprops.h` header file */
 #if ( ( defined( __GNUC__ ) && __GNUC__ >= 2 )                       || \
       ( defined( __IBMC__ ) && __IBMC__ >= 1210 &&                      \
         defined( __IBM__TYPEOF__ ) )                                 || \
@@ -365,14 +364,14 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /* Use FT_LOCAL and FT_LOCAL_DEF to declare and define, respectively, */
-  /* a function that gets used only within the scope of a module.       */
-  /* Normally, both the header and source code files for such a         */
-  /* function are within a single module directory.                     */
-  /*                                                                    */
-  /* Intra-module arrays should be tagged with FT_LOCAL_ARRAY and       */
-  /* FT_LOCAL_ARRAY_DEF.                                                */
-  /*                                                                    */
+  /* Use `FT_LOCAL` and `FT_LOCAL_DEF` to declare and define,            */
+  /* respectively, a function that gets used only within the scope of a  */
+  /* module.  Normally, both the header and source code files for such a */
+  /* function are within a single module directory.                      */
+  /*                                                                     */
+  /* Intra-module arrays should be tagged with `FT_LOCAL_ARRAY` and      */
+  /* `FT_LOCAL_ARRAY_DEF`.                                               */
+  /*                                                                     */
 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT
 
 #define FT_LOCAL( x )      static  x
@@ -394,12 +393,12 @@ FT_BEGIN_HEADER
 #define FT_LOCAL_ARRAY_DEF( x )  const  x
 
 
-  /* Use FT_BASE and FT_BASE_DEF to declare and define, respectively, */
-  /* functions that are used in more than a single module.  In the    */
-  /* current setup this implies that the declaration is in a header   */
-  /* file in the `include/freetype/internal' directory, and the       */
-  /* function body is in a file in `src/base'.                        */
-  /*                                                                  */
+  /* Use `FT_BASE` and `FT_BASE_DEF` to declare and define, respectively, */
+  /* functions that are used in more than a single module.  In the        */
+  /* current setup this implies that the declaration is in a header file  */
+  /* in the `include/freetype/internal` directory, and the function body  */
+  /* is in a file in `src/base`.                                          */
+  /*                                                                      */
 #ifndef FT_BASE
 
 #ifdef __cplusplus
@@ -422,45 +421,50 @@ FT_BEGIN_HEADER
 #endif /* !FT_BASE_DEF */
 
 
-  /*   When compiling FreeType as a DLL or DSO with hidden visibility      */
-  /*   some systems/compilers need a special attribute in front OR after   */
-  /*   the return type of function declarations.                           */
-  /*                                                                       */
-  /*   Two macros are used within the FreeType source code to define       */
-  /*   exported library functions: FT_EXPORT and FT_EXPORT_DEF.            */
-  /*                                                                       */
-  /*     FT_EXPORT( return_type )                                          */
-  /*                                                                       */
-  /*       is used in a function declaration, as in                        */
-  /*                                                                       */
-  /*         FT_EXPORT( FT_Error )                                         */
-  /*         FT_Init_FreeType( FT_Library*  alibrary );                    */
-  /*                                                                       */
-  /*                                                                       */
-  /*     FT_EXPORT_DEF( return_type )                                      */
-  /*                                                                       */
-  /*       is used in a function definition, as in                         */
-  /*                                                                       */
-  /*         FT_EXPORT_DEF( FT_Error )                                     */
-  /*         FT_Init_FreeType( FT_Library*  alibrary )                     */
-  /*         {                                                             */
-  /*           ... some code ...                                           */
-  /*           return FT_Err_Ok;                                           */
-  /*         }                                                             */
-  /*                                                                       */
-  /*   You can provide your own implementation of FT_EXPORT and            */
-  /*   FT_EXPORT_DEF here if you want.                                     */
-  /*                                                                       */
-  /*   To export a variable, use FT_EXPORT_VAR.                            */
-  /*                                                                       */
+  /* When compiling FreeType as a DLL or DSO with hidden visibility    */
+  /* some systems/compilers need a special attribute in front OR after */
+  /* the return type of function declarations.                         */
+  /*                                                                   */
+  /* Two macros are used within the FreeType source code to define     */
+  /* exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`.      */
+  /*                                                                   */
+  /* - `FT_EXPORT( return_type )`                                      */
+  /*                                                                   */
+  /*   is used in a function declaration, as in                        */
+  /*                                                                   */
+  /*   ```                                                             */
+  /*     FT_EXPORT( FT_Error )                                         */
+  /*     FT_Init_FreeType( FT_Library*  alibrary );                    */
+  /*   ```                                                             */
+  /*                                                                   */
+  /* - `FT_EXPORT_DEF( return_type )`                                  */
+  /*                                                                   */
+  /*   is used in a function definition, as in                         */
+  /*                                                                   */
+  /*   ```                                                             */
+  /*     FT_EXPORT_DEF( FT_Error )                                     */
+  /*     FT_Init_FreeType( FT_Library*  alibrary )                     */
+  /*     {                                                             */
+  /*       ... some code ...                                           */
+  /*       return FT_Err_Ok;                                           */
+  /*     }                                                             */
+  /*   ```                                                             */
+  /*                                                                   */
+  /* You can provide your own implementation of `FT_EXPORT` and        */
+  /* `FT_EXPORT_DEF` here if you want.                                 */
+  /*                                                                   */
+  /* To export a variable, use `FT_EXPORT_VAR`.                        */
+  /*                                                                   */
 #ifndef FT_EXPORT
 
 #ifdef FT2_BUILD_LIBRARY
 
-#if defined( _WIN32 ) && ( defined( _DLL ) || defined( DLL_EXPORT ) )
+#if defined( _WIN32 ) && defined( DLL_EXPORT )
 #define FT_EXPORT( x )  __declspec( dllexport )  x
 #elif defined( __GNUC__ ) && __GNUC__ >= 4
 #define FT_EXPORT( x )  __attribute__(( visibility( "default" ) ))  x
+#elif defined( __SUNPRO_C ) && __SUNPRO_C >= 0x550
+#define FT_EXPORT( x )  __global  x
 #elif defined( __cplusplus )
 #define FT_EXPORT( x )  extern "C"  x
 #else
@@ -469,7 +473,7 @@ FT_BEGIN_HEADER
 
 #else
 
-#if defined( FT2_DLLIMPORT )
+#if defined( _WIN32 ) && defined( DLL_IMPORT )
 #define FT_EXPORT( x )  __declspec( dllimport )  x
 #elif defined( __cplusplus )
 #define FT_EXPORT( x )  extern "C"  x
@@ -508,7 +512,7 @@ FT_BEGIN_HEADER
   /* C++ compiler and with 16bit compilers.                          */
   /*                                                                 */
 
-  /* This is special.  Within C++, you must specify `extern "C"' for */
+  /* This is special.  Within C++, you must specify `extern "C"` for */
   /* functions which are used via function pointers, and you also    */
   /* must do that for structures which contain function pointers to  */
   /* assure C linkage -- it's not possible to have (local) anonymous */
@@ -531,7 +535,7 @@ FT_BEGIN_HEADER
   /*                                                                 */
   /*                                                                 */
   /* Some 16bit compilers have to redefine these macros to insert    */
-  /* the infamous `_cdecl' or `__fastcall' declarations.             */
+  /* the infamous `_cdecl` or `__fastcall` declarations.             */
   /*                                                                 */
 #ifndef FT_CALLBACK_DEF
 #ifdef __cplusplus
diff --git a/thirdparty/freetype/include/freetype/config/ftheader.h b/thirdparty/freetype/include/freetype/config/ftheader.h
index 702f77cc42..696d6ba906 100644
--- a/thirdparty/freetype/include/freetype/config/ftheader.h
+++ b/thirdparty/freetype/include/freetype/config/ftheader.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftheader.h                                                             */
-/*                                                                         */
-/*    Build macros of the FreeType 2 library.                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftheader.h
+ *
+ *   Build macros of the FreeType 2 library.
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #ifndef FTHEADER_H_
 #define FTHEADER_H_
@@ -27,7 +27,7 @@
   /* <Description>                                                         */
   /*    This macro is used in association with @FT_END_HEADER in header    */
   /*    files to ensure that the declarations within are properly          */
-  /*    encapsulated in an `extern "C" { .. }' block when included from a  */
+  /*    encapsulated in an `extern "C" { .. }` block when included from a  */
   /*    C++ compiler.                                                      */
   /*                                                                       */
 #ifdef __cplusplus
@@ -45,7 +45,7 @@
   /* <Description>                                                         */
   /*    This macro is used in association with @FT_BEGIN_HEADER in header  */
   /*    files to ensure that the declarations within are properly          */
-  /*    encapsulated in an `extern "C" { .. }' block when included from a  */
+  /*    encapsulated in an `extern "C" { .. }` block when included from a  */
   /*    C++ compiler.                                                      */
   /*                                                                       */
 #ifdef __cplusplus
@@ -55,54 +55,54 @@
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Aliases for the FreeType 2 public and configuration files.            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Aliases for the FreeType 2 public and configuration files.
+   *
+   */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    header_file_macros                                                 */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Header File Macros                                                 */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Macro definitions used to #include specific header files.          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The following macros are defined to the name of specific           */
-  /*    FreeType~2 header files.  They can be used directly in #include    */
-  /*    statements as in:                                                  */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      #include FT_FREETYPE_H                                           */
-  /*      #include FT_MULTIPLE_MASTERS_H                                   */
-  /*      #include FT_GLYPH_H                                              */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    There are several reasons why we are now using macros to name      */
-  /*    public header files.  The first one is that such macros are not    */
-  /*    limited to the infamous 8.3~naming rule required by DOS (and       */
-  /*    `FT_MULTIPLE_MASTERS_H' is a lot more meaningful than `ftmm.h').   */
-  /*                                                                       */
-  /*    The second reason is that it allows for more flexibility in the    */
-  /*    way FreeType~2 is installed on a given system.                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   header_file_macros
+   *
+   * @title:
+   *   Header File Macros
+   *
+   * @abstract:
+   *   Macro definitions used to `#include` specific header files.
+   *
+   * @description:
+   *   The following macros are defined to the name of specific FreeType~2
+   *   header files.  They can be used directly in `#include` statements as
+   *   in:
+   *
+   *   ```
+   *     #include FT_FREETYPE_H
+   *     #include FT_MULTIPLE_MASTERS_H
+   *     #include FT_GLYPH_H
+   *   ```
+   *
+   *   There are several reasons why we are now using macros to name public
+   *   header files.  The first one is that such macros are not limited to
+   *   the infamous 8.3~naming rule required by DOS (and
+   *   `FT_MULTIPLE_MASTERS_H` is a lot more meaningful than `ftmm.h`).
+   *
+   *   The second reason is that it allows for more flexibility in the way
+   *   FreeType~2 is installed on a given system.
+   *
+   */
 
 
   /* configuration files */
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CONFIG_CONFIG_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   FreeType~2 configuration data.
    *
    */
@@ -111,13 +111,13 @@
 #endif
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CONFIG_STANDARD_LIBRARY_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   FreeType~2 interface to the standard C library functions.
    *
    */
@@ -126,13 +126,13 @@
 #endif
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CONFIG_OPTIONS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   FreeType~2 project-specific configuration options.
    *
    */
@@ -141,13 +141,13 @@
 #endif
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CONFIG_MODULES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   list of FreeType~2 modules that are statically linked to new library
    *   instances in @FT_Init_FreeType.
    *
@@ -160,26 +160,26 @@
 
   /* public headers */
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_FREETYPE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   base FreeType~2 API.
    *
    */
 #define FT_FREETYPE_H  <freetype/freetype.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_ERRORS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   list of FreeType~2 error codes (and messages).
    *
    *   It is included by @FT_FREETYPE_H.
@@ -188,26 +188,26 @@
 #define FT_ERRORS_H  <freetype/fterrors.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_MODULE_ERRORS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   list of FreeType~2 module error offsets (and messages).
    *
    */
 #define FT_MODULE_ERRORS_H  <freetype/ftmoderr.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_SYSTEM_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 interface to low-level operations (i.e., memory management
    *   and stream i/o).
    *
@@ -217,13 +217,13 @@
 #define FT_SYSTEM_H  <freetype/ftsystem.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_IMAGE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing type
+   *   A macro used in `#include` statements to name the file containing type
    *   definitions related to glyph images (i.e., bitmaps, outlines,
    *   scan-converter parameters).
    *
@@ -233,13 +233,13 @@
 #define FT_IMAGE_H  <freetype/ftimage.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TYPES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   basic data types defined by FreeType~2.
    *
    *   It is included by @FT_FREETYPE_H.
@@ -248,13 +248,13 @@
 #define FT_TYPES_H  <freetype/fttypes.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_LIST_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   list management API of FreeType~2.
    *
    *   (Most applications will never need to include this file.)
@@ -263,151 +263,151 @@
 #define FT_LIST_H  <freetype/ftlist.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_OUTLINE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   scalable outline management API of FreeType~2.
    *
    */
 #define FT_OUTLINE_H  <freetype/ftoutln.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_SIZES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   API which manages multiple @FT_Size objects per face.
    *
    */
 #define FT_SIZES_H  <freetype/ftsizes.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_MODULE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   module management API of FreeType~2.
    *
    */
 #define FT_MODULE_H  <freetype/ftmodapi.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_RENDER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   renderer module management API of FreeType~2.
    *
    */
 #define FT_RENDER_H  <freetype/ftrender.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_DRIVER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   structures and macros related to the driver modules.
    *
    */
 #define FT_DRIVER_H  <freetype/ftdriver.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_AUTOHINTER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   structures and macros related to the auto-hinting module.
    *
-   *   Deprecated since version 2.9; use @FT_DRIVER_H instead.
+   *   Deprecated since version~2.9; use @FT_DRIVER_H instead.
    *
    */
 #define FT_AUTOHINTER_H  FT_DRIVER_H
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CFF_DRIVER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   structures and macros related to the CFF driver module.
    *
-   *   Deprecated since version 2.9; use @FT_DRIVER_H instead.
+   *   Deprecated since version~2.9; use @FT_DRIVER_H instead.
    *
    */
 #define FT_CFF_DRIVER_H  FT_DRIVER_H
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TRUETYPE_DRIVER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   structures and macros related to the TrueType driver module.
    *
-   *   Deprecated since version 2.9; use @FT_DRIVER_H instead.
+   *   Deprecated since version~2.9; use @FT_DRIVER_H instead.
    *
    */
 #define FT_TRUETYPE_DRIVER_H  FT_DRIVER_H
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_PCF_DRIVER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing
+   *   A macro used in `#include` statements to name the file containing
    *   structures and macros related to the PCF driver module.
    *
-   *   Deprecated since version 2.9; use @FT_DRIVER_H instead.
+   *   Deprecated since version~2.9; use @FT_DRIVER_H instead.
    *
    */
 #define FT_PCF_DRIVER_H  FT_DRIVER_H
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TYPE1_TABLES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   types and API specific to the Type~1 format.
    *
    */
 #define FT_TYPE1_TABLES_H  <freetype/t1tables.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TRUETYPE_IDS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   enumeration values which identify name strings, languages, encodings,
    *   etc.  This file really contains a _large_ set of constant macro
    *   definitions, taken from the TrueType and OpenType specifications.
@@ -416,174 +416,172 @@
 #define FT_TRUETYPE_IDS_H  <freetype/ttnameid.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TRUETYPE_TABLES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   types and API specific to the TrueType (as well as OpenType) format.
    *
    */
 #define FT_TRUETYPE_TABLES_H  <freetype/tttables.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TRUETYPE_TAGS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   definitions of TrueType four-byte `tags' which identify blocks in
+   *   A macro used in `#include` statements to name the file containing the
+   *   definitions of TrueType four-byte 'tags' which identify blocks in
    *   SFNT-based font formats (i.e., TrueType and OpenType).
    *
    */
 #define FT_TRUETYPE_TAGS_H  <freetype/tttags.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_BDF_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   definitions of an API which accesses BDF-specific strings from a
-   *   face.
+   *   A macro used in `#include` statements to name the file containing the
+   *   definitions of an API which accesses BDF-specific strings from a face.
    *
    */
 #define FT_BDF_H  <freetype/ftbdf.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CID_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   definitions of an API which access CID font information from a
-   *   face.
+   *   A macro used in `#include` statements to name the file containing the
+   *   definitions of an API which access CID font information from a face.
    *
    */
 #define FT_CID_H  <freetype/ftcid.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_GZIP_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   definitions of an API which supports gzip-compressed files.
    *
    */
 #define FT_GZIP_H  <freetype/ftgzip.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_LZW_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   definitions of an API which supports LZW-compressed files.
    *
    */
 #define FT_LZW_H  <freetype/ftlzw.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_BZIP2_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   definitions of an API which supports bzip2-compressed files.
    *
    */
 #define FT_BZIP2_H  <freetype/ftbzip2.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_WINFONTS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   definitions of an API which supports Windows FNT files.
    *
    */
 #define FT_WINFONTS_H   <freetype/ftwinfnt.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_GLYPH_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   API of the optional glyph management component.
    *
    */
 #define FT_GLYPH_H  <freetype/ftglyph.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_BITMAP_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   API of the optional bitmap conversion component.
    *
    */
 #define FT_BITMAP_H  <freetype/ftbitmap.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_BBOX_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   API of the optional exact bounding box computation routines.
    *
    */
 #define FT_BBOX_H  <freetype/ftbbox.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_CACHE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   API of the optional FreeType~2 cache sub-system.
    *
    */
 #define FT_CACHE_H  <freetype/ftcache.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_MAC_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   Macintosh-specific FreeType~2 API.  The latter is used to access
-   *   fonts embedded in resource forks.
+   *   A macro used in `#include` statements to name the file containing the
+   *   Macintosh-specific FreeType~2 API.  The latter is used to access fonts
+   *   embedded in resource forks.
    *
    *   This header file must be explicitly included by client applications
    *   compiled on the Mac (note that the base API still works though).
@@ -592,105 +590,105 @@
 #define FT_MAC_H  <freetype/ftmac.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_MULTIPLE_MASTERS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   optional multiple-masters management API of FreeType~2.
    *
    */
 #define FT_MULTIPLE_MASTERS_H  <freetype/ftmm.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_SFNT_NAMES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   optional FreeType~2 API which accesses embedded `name' strings in
+   *   A macro used in `#include` statements to name the file containing the
+   *   optional FreeType~2 API which accesses embedded 'name' strings in
    *   SFNT-based font formats (i.e., TrueType and OpenType).
    *
    */
 #define FT_SFNT_NAMES_H  <freetype/ftsnames.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_OPENTYPE_VALIDATE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   optional FreeType~2 API which validates OpenType tables (BASE, GDEF,
-   *   GPOS, GSUB, JSTF).
+   *   A macro used in `#include` statements to name the file containing the
+   *   optional FreeType~2 API which validates OpenType tables ('BASE',
+   *   'GDEF', 'GPOS', 'GSUB', 'JSTF').
    *
    */
 #define FT_OPENTYPE_VALIDATE_H  <freetype/ftotval.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_GX_VALIDATE_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
-   *   optional FreeType~2 API which validates TrueTypeGX/AAT tables (feat,
-   *   mort, morx, bsln, just, kern, opbd, trak, prop).
+   *   A macro used in `#include` statements to name the file containing the
+   *   optional FreeType~2 API which validates TrueTypeGX/AAT tables ('feat',
+   *   'mort', 'morx', 'bsln', 'just', 'kern', 'opbd', 'trak', 'prop').
    *
    */
 #define FT_GX_VALIDATE_H  <freetype/ftgxval.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_PFR_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which accesses PFR-specific data.
    *
    */
 #define FT_PFR_H  <freetype/ftpfr.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_STROKER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which provides functions to stroke outline paths.
    */
 #define FT_STROKER_H  <freetype/ftstroke.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_SYNTHESIS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which performs artificial obliquing and emboldening.
    */
 #define FT_SYNTHESIS_H  <freetype/ftsynth.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_FONT_FORMATS_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which provides functions specific to font formats.
    */
 #define FT_FONT_FORMATS_H  <freetype/ftfntfmt.h>
@@ -699,67 +697,79 @@
 #define FT_XFREE86_H  FT_FONT_FORMATS_H
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_TRIGONOMETRY_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which performs trigonometric computations (e.g.,
    *   cosines and arc tangents).
    */
 #define FT_TRIGONOMETRY_H  <freetype/fttrigon.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_LCD_FILTER_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which performs color filtering for subpixel rendering.
    */
 #define FT_LCD_FILTER_H  <freetype/ftlcdfil.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_INCREMENTAL_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which performs incremental glyph loading.
    */
 #define FT_INCREMENTAL_H  <freetype/ftincrem.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_GASP_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which returns entries from the TrueType GASP table.
    */
 #define FT_GASP_H  <freetype/ftgasp.h>
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_ADVANCES_H
    *
    * @description:
-   *   A macro used in #include statements to name the file containing the
+   *   A macro used in `#include` statements to name the file containing the
    *   FreeType~2 API which returns individual and ranged glyph advances.
    */
 #define FT_ADVANCES_H  <freetype/ftadvanc.h>
 
 
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_COLOR_H
+   *
+   * @description:
+   *   A macro used in `#include` statements to name the file containing the
+   *   FreeType~2 API which handles the OpenType 'CPAL' table.
+   */
+#define FT_COLOR_H  <freetype/ftcolor.h>
+
+
   /* */
 
   /* These header files don't need to be included by the user. */
@@ -770,14 +780,14 @@
 #define FT_UNPATENTED_HINTING_H   <freetype/ftparams.h>
 #define FT_TRUETYPE_UNPATENTED_H  <freetype/ftparams.h>
 
-  /* FT_CACHE_H is the only header file needed for the cache subsystem. */
+  /* `FT_CACHE_H` is the only header file needed for the cache subsystem. */
 #define FT_CACHE_IMAGE_H          FT_CACHE_H
 #define FT_CACHE_SMALL_BITMAPS_H  FT_CACHE_H
 #define FT_CACHE_CHARMAP_H        FT_CACHE_H
 
   /* The internals of the cache sub-system are no longer exposed.  We */
-  /* default to FT_CACHE_H at the moment just in case, but we know of */
-  /* no rogue client that uses them.                                  */
+  /* default to `FT_CACHE_H` at the moment just in case, but we know  */
+  /* of no rogue client that uses them.                               */
   /*                                                                  */
 #define FT_CACHE_MANAGER_H           FT_CACHE_H
 #define FT_CACHE_INTERNAL_MRU_H      FT_CACHE_H
@@ -789,8 +799,8 @@
 
 
   /*
-   * Include internal headers definitions from <internal/...>
-   * only when building the library.
+   * Include internal headers definitions from `<internal/...>` only when
+   * building the library.
    */
 #ifdef FT2_BUILD_LIBRARY
 #define  FT_INTERNAL_INTERNAL_H  <freetype/internal/internal.h>
diff --git a/thirdparty/freetype/include/freetype/config/ftmodule.h b/thirdparty/freetype/include/freetype/config/ftmodule.h
index 76d271a74b..7c603e5327 100644
--- a/thirdparty/freetype/include/freetype/config/ftmodule.h
+++ b/thirdparty/freetype/include/freetype/config/ftmodule.h
@@ -1,12 +1,12 @@
 /*
- *  This file registers the FreeType modules compiled into the library.
+ * This file registers the FreeType modules compiled into the library.
  *
- *  If you use GNU make, this file IS NOT USED!  Instead, it is created in
- *  the objects directory (normally `<topdir>/objs/') based on information
- *  from `<topdir>/modules.cfg'.
+ * If you use GNU make, this file IS NOT USED!  Instead, it is created in
+ * the objects directory (normally `<topdir>/objs/`) based on information
+ * from `<topdir>/modules.cfg`.
  *
- *  Please read `docs/INSTALL.ANY' and `docs/CUSTOMIZE' how to compile
- *  FreeType without GNU make.
+ * Please read `docs/INSTALL.ANY` and `docs/CUSTOMIZE` how to compile
+ * FreeType without GNU make.
  *
  */
 
diff --git a/thirdparty/freetype/include/freetype/config/ftoption.h b/thirdparty/freetype/include/freetype/config/ftoption.h
index 1fc7295a2c..12f47a82e8 100644
--- a/thirdparty/freetype/include/freetype/config/ftoption.h
+++ b/thirdparty/freetype/include/freetype/config/ftoption.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftoption.h                                                             */
-/*                                                                         */
-/*    User-selectable configuration macros (specification only).           */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftoption.h
+ *
+ *   User-selectable configuration macros (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTOPTION_H_
@@ -25,45 +25,47 @@
 
 FT_BEGIN_HEADER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                 USER-SELECTABLE CONFIGURATION MACROS                  */
-  /*                                                                       */
-  /* This file contains the default configuration macro definitions for    */
-  /* a standard build of the FreeType library.  There are three ways to    */
-  /* use this file to build project-specific versions of the library:      */
-  /*                                                                       */
-  /*  - You can modify this file by hand, but this is not recommended in   */
-  /*    cases where you would like to build several versions of the        */
-  /*    library from a single source directory.                            */
-  /*                                                                       */
-  /*  - You can put a copy of this file in your build directory, more      */
-  /*    precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD'   */
-  /*    is the name of a directory that is included _before_ the FreeType  */
-  /*    include path during compilation.                                   */
-  /*                                                                       */
-  /*    The default FreeType Makefiles and Jamfiles use the build          */
-  /*    directory `builds/<system>' by default, but you can easily change  */
-  /*    that for your own projects.                                        */
-  /*                                                                       */
-  /*  - Copy the file <ft2build.h> to `$BUILD/ft2build.h' and modify it    */
-  /*    slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to       */
-  /*    locate this file during the build.  For example,                   */
-  /*                                                                       */
-  /*      #define FT_CONFIG_OPTIONS_H  <myftoptions.h>                     */
-  /*      #include <freetype/config/ftheader.h>                            */
-  /*                                                                       */
-  /*    will use `$BUILD/myftoptions.h' instead of this file for macro     */
-  /*    definitions.                                                       */
-  /*                                                                       */
-  /*    Note also that you can similarly pre-define the macro              */
-  /*    FT_CONFIG_MODULES_H used to locate the file listing of the modules */
-  /*    that are statically linked to the library at compile time.  By     */
-  /*    default, this file is <freetype/config/ftmodule.h>.                */
-  /*                                                                       */
-  /* We highly recommend using the third method whenever possible.         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                USER-SELECTABLE CONFIGURATION MACROS
+   *
+   * This file contains the default configuration macro definitions for a
+   * standard build of the FreeType library.  There are three ways to use
+   * this file to build project-specific versions of the library:
+   *
+   * - You can modify this file by hand, but this is not recommended in
+   *   cases where you would like to build several versions of the library
+   *   from a single source directory.
+   *
+   * - You can put a copy of this file in your build directory, more
+   *   precisely in `$BUILD/freetype/config/ftoption.h`, where `$BUILD` is
+   *   the name of a directory that is included _before_ the FreeType include
+   *   path during compilation.
+   *
+   *   The default FreeType Makefiles and Jamfiles use the build directory
+   *   `builds/<system>` by default, but you can easily change that for your
+   *   own projects.
+   *
+   * - Copy the file <ft2build.h> to `$BUILD/ft2build.h` and modify it
+   *   slightly to pre-define the macro `FT_CONFIG_OPTIONS_H` used to locate
+   *   this file during the build.  For example,
+   *
+   *   ```
+   *     #define FT_CONFIG_OPTIONS_H  <myftoptions.h>
+   *     #include <freetype/config/ftheader.h>
+   *   ```
+   *
+   *   will use `$BUILD/myftoptions.h` instead of this file for macro
+   *   definitions.
+   *
+   *   Note also that you can similarly pre-define the macro
+   *   `FT_CONFIG_MODULES_H` used to locate the file listing of the modules
+   *   that are statically linked to the library at compile time.  By
+   *   default, this file is `<freetype/config/ftmodule.h>`.
+   *
+   * We highly recommend using the third method whenever possible.
+   *
+   */
 
 
   /*************************************************************************/
@@ -75,444 +77,433 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*#***********************************************************************/
-  /*                                                                       */
-  /* If you enable this configuration option, FreeType recognizes an       */
-  /* environment variable called `FREETYPE_PROPERTIES', which can be used  */
-  /* to control the various font drivers and modules.  The controllable    */
-  /* properties are listed in the section @properties.                     */
-  /*                                                                       */
-  /* You have to undefine this configuration option on platforms that lack */
-  /* the concept of environment variables (and thus don't have the         */
-  /* `getenv' function), for example Windows CE.                           */
-  /*                                                                       */
-  /* `FREETYPE_PROPERTIES' has the following syntax form (broken here into */
-  /* multiple lines for better readability).                               */
-  /*                                                                       */
-  /* {                                                                     */
-  /*   <optional whitespace>                                               */
-  /*   <module-name1> ':'                                                  */
-  /*   <property-name1> '=' <property-value1>                              */
-  /*   <whitespace>                                                        */
-  /*   <module-name2> ':'                                                  */
-  /*   <property-name2> '=' <property-value2>                              */
-  /*   ...                                                                 */
-  /* }                                                                     */
-  /*                                                                       */
-  /* Example:                                                              */
-  /*                                                                       */
-  /*   FREETYPE_PROPERTIES=truetype:interpreter-version=35 \               */
-  /*                       cff:no-stem-darkening=1 \                       */
-  /*                       autofitter:warping=1                            */
-  /*                                                                       */
+  /*#************************************************************************
+   *
+   * If you enable this configuration option, FreeType recognizes an
+   * environment variable called `FREETYPE_PROPERTIES`, which can be used to
+   * control the various font drivers and modules.  The controllable
+   * properties are listed in the section @properties.
+   *
+   * You have to undefine this configuration option on platforms that lack
+   * the concept of environment variables (and thus don't have the `getenv`
+   * function), for example Windows CE.
+   *
+   * `FREETYPE_PROPERTIES` has the following syntax form (broken here into
+   * multiple lines for better readability).
+   *
+   * ```
+   *   <optional whitespace>
+   *   <module-name1> ':'
+   *   <property-name1> '=' <property-value1>
+   *   <whitespace>
+   *   <module-name2> ':'
+   *   <property-name2> '=' <property-value2>
+   *   ...
+   * ```
+   *
+   * Example:
+   *
+   * ```
+   *   FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
+   *                       cff:no-stem-darkening=1 \
+   *                       autofitter:warping=1
+   * ```
+   *
+   */
 #define FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Uncomment the line below if you want to activate LCD rendering        */
-  /* technology similar to ClearType in this build of the library.  This   */
-  /* technology triples the resolution in the direction color subpixels.   */
-  /* To mitigate color fringes inherent to this technology, you also need  */
-  /* to explicitly set up LCD filtering.                                   */
-  /*                                                                       */
-  /* Note that this feature is covered by several Microsoft patents        */
-  /* and should not be activated in any default build of the library.      */
-  /* When this macro is not defined, FreeType offers alternative LCD       */
-  /* rendering technology that produces excellent output without LCD       */
-  /* filtering.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Uncomment the line below if you want to activate LCD rendering
+   * technology similar to ClearType in this build of the library.  This
+   * technology triples the resolution in the direction color subpixels.  To
+   * mitigate color fringes inherent to this technology, you also need to
+   * explicitly set up LCD filtering.
+   *
+   * Note that this feature is covered by several Microsoft patents and
+   * should not be activated in any default build of the library.  When this
+   * macro is not defined, FreeType offers alternative LCD rendering
+   * technology that produces excellent output without LCD filtering.
+   */
 /* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Many compilers provide a non-ANSI 64-bit data type that can be used   */
-  /* by FreeType to speed up some computations.  However, this will create */
-  /* some problems when compiling the library in strict ANSI mode.         */
-  /*                                                                       */
-  /* For this reason, the use of 64-bit integers is normally disabled when */
-  /* the __STDC__ macro is defined.  You can however disable this by       */
-  /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here.                 */
-  /*                                                                       */
-  /* For most compilers, this will only create compilation warnings when   */
-  /* building the library.                                                 */
-  /*                                                                       */
-  /* ObNote: The compiler-specific 64-bit integers are detected in the     */
-  /*         file `ftconfig.h' either statically or through the            */
-  /*         `configure' script on supported platforms.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Many compilers provide a non-ANSI 64-bit data type that can be used by
+   * FreeType to speed up some computations.  However, this will create some
+   * problems when compiling the library in strict ANSI mode.
+   *
+   * For this reason, the use of 64-bit integers is normally disabled when
+   * the `__STDC__` macro is defined.  You can however disable this by
+   * defining the macro `FT_CONFIG_OPTION_FORCE_INT64` here.
+   *
+   * For most compilers, this will only create compilation warnings when
+   * building the library.
+   *
+   * ObNote: The compiler-specific 64-bit integers are detected in the
+   *         file `ftconfig.h` either statically or through the `configure`
+   *         script on supported platforms.
+   */
 #undef FT_CONFIG_OPTION_FORCE_INT64
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* If this macro is defined, do not try to use an assembler version of   */
-  /* performance-critical functions (e.g. FT_MulFix).  You should only do  */
-  /* that to verify that the assembler function works properly, or to      */
-  /* execute benchmark tests of the various implementations.               */
+  /**************************************************************************
+   *
+   * If this macro is defined, do not try to use an assembler version of
+   * performance-critical functions (e.g., @FT_MulFix).  You should only do
+   * that to verify that the assembler function works properly, or to execute
+   * benchmark tests of the various implementations.
+   */
 /* #define FT_CONFIG_OPTION_NO_ASSEMBLER */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* If this macro is defined, try to use an inlined assembler version of  */
-  /* the `FT_MulFix' function, which is a `hotspot' when loading and       */
-  /* hinting glyphs, and which should be executed as fast as possible.     */
-  /*                                                                       */
-  /* Note that if your compiler or CPU is not supported, this will default */
-  /* to the standard and portable implementation found in `ftcalc.c'.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * If this macro is defined, try to use an inlined assembler version of the
+   * @FT_MulFix function, which is a 'hotspot' when loading and hinting
+   * glyphs, and which should be executed as fast as possible.
+   *
+   * Note that if your compiler or CPU is not supported, this will default to
+   * the standard and portable implementation found in `ftcalc.c`.
+   */
 #define FT_CONFIG_OPTION_INLINE_MULFIX
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* LZW-compressed file support.                                          */
-  /*                                                                       */
-  /*   FreeType now handles font files that have been compressed with the  */
-  /*   `compress' program.  This is mostly used to parse many of the PCF   */
-  /*   files that come with various X11 distributions.  The implementation */
-  /*   uses NetBSD's `zopen' to partially uncompress the file on the fly   */
-  /*   (see src/lzw/ftgzip.c).                                             */
-  /*                                                                       */
-  /*   Define this macro if you want to enable this `feature'.             */
-  /*                                                                       */
-/* #define FT_CONFIG_OPTION_USE_LZW */ // -GODOT-
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Gzip-compressed file support.                                         */
-  /*                                                                       */
-  /*   FreeType now handles font files that have been compressed with the  */
-  /*   `gzip' program.  This is mostly used to parse many of the PCF files */
-  /*   that come with XFree86.  The implementation uses `zlib' to          */
-  /*   partially uncompress the file on the fly (see src/gzip/ftgzip.c).   */
-  /*                                                                       */
-  /*   Define this macro if you want to enable this `feature'.  See also   */
-  /*   the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below.                       */
-  /*                                                                       */
-/* #define FT_CONFIG_OPTION_USE_ZLIB */ // -GODOT-
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* ZLib library selection                                                */
-  /*                                                                       */
-  /*   This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined.  */
-  /*   It allows FreeType's `ftgzip' component to link to the system's     */
-  /*   installation of the ZLib library.  This is useful on systems like   */
-  /*   Unix or VMS where it generally is already available.                */
-  /*                                                                       */
-  /*   If you let it undefined, the component will use its own copy        */
-  /*   of the zlib sources instead.  These have been modified to be        */
-  /*   included directly within the component and *not* export external    */
-  /*   function names.  This allows you to link any program with FreeType  */
-  /*   _and_ ZLib without linking conflicts.                               */
-  /*                                                                       */
-  /*   Do not #undef this macro here since the build system might define   */
-  /*   it for certain configurations only.                                 */
-  /*                                                                       */
-  /*   If you use a build system like cmake or the `configure' script,     */
-  /*   options set by those programs have precendence, overwriting the     */
-  /*   value here with the configured one.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * LZW-compressed file support.
+   *
+   *   FreeType now handles font files that have been compressed with the
+   *   `compress` program.  This is mostly used to parse many of the PCF
+   *   files that come with various X11 distributions.  The implementation
+   *   uses NetBSD's `zopen` to partially uncompress the file on the fly (see
+   *   `src/lzw/ftgzip.c`).
+   *
+   *   Define this macro if you want to enable this 'feature'.
+   */
+#define FT_CONFIG_OPTION_USE_LZW
+
+
+  /**************************************************************************
+   *
+   * Gzip-compressed file support.
+   *
+   *   FreeType now handles font files that have been compressed with the
+   *   `gzip` program.  This is mostly used to parse many of the PCF files
+   *   that come with XFree86.  The implementation uses 'zlib' to partially
+   *   uncompress the file on the fly (see `src/gzip/ftgzip.c`).
+   *
+   *   Define this macro if you want to enable this 'feature'.  See also the
+   *   macro `FT_CONFIG_OPTION_SYSTEM_ZLIB` below.
+   */
+#define FT_CONFIG_OPTION_USE_ZLIB
+
+
+  /**************************************************************************
+   *
+   * ZLib library selection
+   *
+   *   This macro is only used when `FT_CONFIG_OPTION_USE_ZLIB` is defined.
+   *   It allows FreeType's 'ftgzip' component to link to the system's
+   *   installation of the ZLib library.  This is useful on systems like
+   *   Unix or VMS where it generally is already available.
+   *
+   *   If you let it undefined, the component will use its own copy of the
+   *   zlib sources instead.  These have been modified to be included
+   *   directly within the component and **not** export external function
+   *   names.  This allows you to link any program with FreeType _and_ ZLib
+   *   without linking conflicts.
+   *
+   *   Do not `#undef` this macro here since the build system might define
+   *   it for certain configurations only.
+   *
+   *   If you use a build system like cmake or the `configure` script,
+   *   options set by those programs have precedence, overwriting the value
+   *   here with the configured one.
+   */
 /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Bzip2-compressed file support.                                        */
-  /*                                                                       */
-  /*   FreeType now handles font files that have been compressed with the  */
-  /*   `bzip2' program.  This is mostly used to parse many of the PCF      */
-  /*   files that come with XFree86.  The implementation uses `libbz2' to  */
-  /*   partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */
-  /*   Contrary to gzip, bzip2 currently is not included and need to use   */
-  /*   the system available bzip2 implementation.                          */
-  /*                                                                       */
-  /*   Define this macro if you want to enable this `feature'.             */
-  /*                                                                       */
-  /*   If you use a build system like cmake or the `configure' script,     */
-  /*   options set by those programs have precendence, overwriting the     */
-  /*   value here with the configured one.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Bzip2-compressed file support.
+   *
+   *   FreeType now handles font files that have been compressed with the
+   *   `bzip2` program.  This is mostly used to parse many of the PCF files
+   *   that come with XFree86.  The implementation uses `libbz2` to partially
+   *   uncompress the file on the fly (see `src/bzip2/ftbzip2.c`).  Contrary
+   *   to gzip, bzip2 currently is not included and need to use the system
+   *   available bzip2 implementation.
+   *
+   *   Define this macro if you want to enable this 'feature'.
+   *
+   *   If you use a build system like cmake or the `configure` script,
+   *   options set by those programs have precedence, overwriting the value
+   *   here with the configured one.
+   */
 /* #define FT_CONFIG_OPTION_USE_BZIP2 */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define to disable the use of file stream functions and types, FILE,   */
-  /* fopen() etc.  Enables the use of smaller system libraries on embedded */
-  /* systems that have multiple system libraries, some with or without     */
-  /* file stream support, in the cases where file stream support is not    */
-  /* necessary such as memory loading of font files.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define to disable the use of file stream functions and types, `FILE`,
+   * `fopen`, etc.  Enables the use of smaller system libraries on embedded
+   * systems that have multiple system libraries, some with or without file
+   * stream support, in the cases where file stream support is not necessary
+   * such as memory loading of font files.
+   */
 /* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* PNG bitmap support.                                                   */
-  /*                                                                       */
-  /*   FreeType now handles loading color bitmap glyphs in the PNG format. */
-  /*   This requires help from the external libpng library.  Uncompressed  */
-  /*   color bitmaps do not need any external libraries and will be        */
-  /*   supported regardless of this configuration.                         */
-  /*                                                                       */
-  /*   Define this macro if you want to enable this `feature'.             */
-  /*                                                                       */
-  /*   If you use a build system like cmake or the `configure' script,     */
-  /*   options set by those programs have precendence, overwriting the     */
-  /*   value here with the configured one.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * PNG bitmap support.
+   *
+   *   FreeType now handles loading color bitmap glyphs in the PNG format.
+   *   This requires help from the external libpng library.  Uncompressed
+   *   color bitmaps do not need any external libraries and will be supported
+   *   regardless of this configuration.
+   *
+   *   Define this macro if you want to enable this 'feature'.
+   *
+   *   If you use a build system like cmake or the `configure` script,
+   *   options set by those programs have precedence, overwriting the value
+   *   here with the configured one.
+   */
 /* #define FT_CONFIG_OPTION_USE_PNG */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* HarfBuzz support.                                                     */
-  /*                                                                       */
-  /*   FreeType uses the HarfBuzz library to improve auto-hinting of       */
-  /*   OpenType fonts.  If available, many glyphs not directly addressable */
-  /*   by a font's character map will be hinted also.                      */
-  /*                                                                       */
-  /*   Define this macro if you want to enable this `feature'.             */
-  /*                                                                       */
-  /*   If you use a build system like cmake or the `configure' script,     */
-  /*   options set by those programs have precendence, overwriting the     */
-  /*   value here with the configured one.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * HarfBuzz support.
+   *
+   *   FreeType uses the HarfBuzz library to improve auto-hinting of OpenType
+   *   fonts.  If available, many glyphs not directly addressable by a font's
+   *   character map will be hinted also.
+   *
+   *   Define this macro if you want to enable this 'feature'.
+   *
+   *   If you use a build system like cmake or the `configure` script,
+   *   options set by those programs have precedence, overwriting the value
+   *   here with the configured one.
+   */
 /* #define FT_CONFIG_OPTION_USE_HARFBUZZ */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Glyph Postscript Names handling                                       */
-  /*                                                                       */
-  /*   By default, FreeType 2 is compiled with the `psnames' module.  This */
-  /*   module is in charge of converting a glyph name string into a        */
-  /*   Unicode value, or return a Macintosh standard glyph name for the    */
-  /*   use with the TrueType `post' table.                                 */
-  /*                                                                       */
-  /*   Undefine this macro if you do not want `psnames' compiled in your   */
-  /*   build of FreeType.  This has the following effects:                 */
-  /*                                                                       */
-  /*   - The TrueType driver will provide its own set of glyph names,      */
-  /*     if you build it to support postscript names in the TrueType       */
-  /*     `post' table, but will not synthesize a missing Unicode charmap.  */
-  /*                                                                       */
-  /*   - The Type 1 driver will not be able to synthesize a Unicode        */
-  /*     charmap out of the glyphs found in the fonts.                     */
-  /*                                                                       */
-  /*   You would normally undefine this configuration macro when building  */
-  /*   a version of FreeType that doesn't contain a Type 1 or CFF driver.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Glyph Postscript Names handling
+   *
+   *   By default, FreeType 2 is compiled with the 'psnames' module.  This
+   *   module is in charge of converting a glyph name string into a Unicode
+   *   value, or return a Macintosh standard glyph name for the use with the
+   *   TrueType 'post' table.
+   *
+   *   Undefine this macro if you do not want 'psnames' compiled in your
+   *   build of FreeType.  This has the following effects:
+   *
+   *   - The TrueType driver will provide its own set of glyph names, if you
+   *     build it to support postscript names in the TrueType 'post' table,
+   *     but will not synthesize a missing Unicode charmap.
+   *
+   *   - The Type~1 driver will not be able to synthesize a Unicode charmap
+   *     out of the glyphs found in the fonts.
+   *
+   *   You would normally undefine this configuration macro when building a
+   *   version of FreeType that doesn't contain a Type~1 or CFF driver.
+   */
 #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Postscript Names to Unicode Values support                            */
-  /*                                                                       */
-  /*   By default, FreeType 2 is built with the `PSNames' module compiled  */
-  /*   in.  Among other things, the module is used to convert a glyph name */
-  /*   into a Unicode value.  This is especially useful in order to        */
-  /*   synthesize on the fly a Unicode charmap from the CFF/Type 1 driver  */
-  /*   through a big table named the `Adobe Glyph List' (AGL).             */
-  /*                                                                       */
-  /*   Undefine this macro if you do not want the Adobe Glyph List         */
-  /*   compiled in your `PSNames' module.  The Type 1 driver will not be   */
-  /*   able to synthesize a Unicode charmap out of the glyphs found in the */
-  /*   fonts.                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Postscript Names to Unicode Values support
+   *
+   *   By default, FreeType~2 is built with the 'psnames' module compiled in.
+   *   Among other things, the module is used to convert a glyph name into a
+   *   Unicode value.  This is especially useful in order to synthesize on
+   *   the fly a Unicode charmap from the CFF/Type~1 driver through a big
+   *   table named the 'Adobe Glyph List' (AGL).
+   *
+   *   Undefine this macro if you do not want the Adobe Glyph List compiled
+   *   in your 'psnames' module.  The Type~1 driver will not be able to
+   *   synthesize a Unicode charmap out of the glyphs found in the fonts.
+   */
 #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Support for Mac fonts                                                 */
-  /*                                                                       */
-  /*   Define this macro if you want support for outline fonts in Mac      */
-  /*   format (mac dfont, mac resource, macbinary containing a mac         */
-  /*   resource) on non-Mac platforms.                                     */
-  /*                                                                       */
-  /*   Note that the `FOND' resource isn't checked.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Support for Mac fonts
+   *
+   *   Define this macro if you want support for outline fonts in Mac format
+   *   (mac dfont, mac resource, macbinary containing a mac resource) on
+   *   non-Mac platforms.
+   *
+   *   Note that the 'FOND' resource isn't checked.
+   */
 #define FT_CONFIG_OPTION_MAC_FONTS
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Guessing methods to access embedded resource forks                    */
-  /*                                                                       */
-  /*   Enable extra Mac fonts support on non-Mac platforms (e.g.           */
-  /*   GNU/Linux).                                                         */
-  /*                                                                       */
-  /*   Resource forks which include fonts data are stored sometimes in     */
-  /*   locations which users or developers don't expected.  In some cases, */
-  /*   resource forks start with some offset from the head of a file.  In  */
-  /*   other cases, the actual resource fork is stored in file different   */
-  /*   from what the user specifies.  If this option is activated,         */
-  /*   FreeType tries to guess whether such offsets or different file      */
-  /*   names must be used.                                                 */
-  /*                                                                       */
-  /*   Note that normal, direct access of resource forks is controlled via */
-  /*   the FT_CONFIG_OPTION_MAC_FONTS option.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Guessing methods to access embedded resource forks
+   *
+   *   Enable extra Mac fonts support on non-Mac platforms (e.g., GNU/Linux).
+   *
+   *   Resource forks which include fonts data are stored sometimes in
+   *   locations which users or developers don't expected.  In some cases,
+   *   resource forks start with some offset from the head of a file.  In
+   *   other cases, the actual resource fork is stored in file different from
+   *   what the user specifies.  If this option is activated, FreeType tries
+   *   to guess whether such offsets or different file names must be used.
+   *
+   *   Note that normal, direct access of resource forks is controlled via
+   *   the `FT_CONFIG_OPTION_MAC_FONTS` option.
+   */
 #ifdef FT_CONFIG_OPTION_MAC_FONTS
 #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Allow the use of FT_Incremental_Interface to load typefaces that      */
-  /* contain no glyph data, but supply it via a callback function.         */
-  /* This is required by clients supporting document formats which         */
-  /* supply font data incrementally as the document is parsed, such        */
-  /* as the Ghostscript interpreter for the PostScript language.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Allow the use of `FT_Incremental_Interface` to load typefaces that
+   * contain no glyph data, but supply it via a callback function.  This is
+   * required by clients supporting document formats which supply font data
+   * incrementally as the document is parsed, such as the Ghostscript
+   * interpreter for the PostScript language.
+   */
 #define FT_CONFIG_OPTION_INCREMENTAL
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The size in bytes of the render pool used by the scan-line converter  */
-  /* to do all of its work.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The size in bytes of the render pool used by the scan-line converter to
+   * do all of its work.
+   */
 #define FT_RENDER_POOL_SIZE  16384L
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FT_MAX_MODULES                                                        */
-  /*                                                                       */
-  /*   The maximum number of modules that can be registered in a single    */
-  /*   FreeType library object.  32 is the default.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FT_MAX_MODULES
+   *
+   *   The maximum number of modules that can be registered in a single
+   *   FreeType library object.  32~is the default.
+   */
 #define FT_MAX_MODULES  32
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Debug level                                                           */
-  /*                                                                       */
-  /*   FreeType can be compiled in debug or trace mode.  In debug mode,    */
-  /*   errors are reported through the `ftdebug' component.  In trace      */
-  /*   mode, additional messages are sent to the standard output during    */
-  /*   execution.                                                          */
-  /*                                                                       */
-  /*   Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode.     */
-  /*   Define FT_DEBUG_LEVEL_TRACE to build it in trace mode.              */
-  /*                                                                       */
-  /*   Don't define any of these macros to compile in `release' mode!      */
-  /*                                                                       */
-  /*   Do not #undef these macros here since the build system might define */
-  /*   them for certain configurations only.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Debug level
+   *
+   *   FreeType can be compiled in debug or trace mode.  In debug mode,
+   *   errors are reported through the 'ftdebug' component.  In trace mode,
+   *   additional messages are sent to the standard output during execution.
+   *
+   *   Define `FT_DEBUG_LEVEL_ERROR` to build the library in debug mode.
+   *   Define `FT_DEBUG_LEVEL_TRACE` to build it in trace mode.
+   *
+   *   Don't define any of these macros to compile in 'release' mode!
+   *
+   *   Do not `#undef` these macros here since the build system might define
+   *   them for certain configurations only.
+   */
 /* #define FT_DEBUG_LEVEL_ERROR */
 /* #define FT_DEBUG_LEVEL_TRACE */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Autofitter debugging                                                  */
-  /*                                                                       */
-  /*   If FT_DEBUG_AUTOFIT is defined, FreeType provides some means to     */
-  /*   control the autofitter behaviour for debugging purposes with global */
-  /*   boolean variables (consequently, you should *never* enable this     */
-  /*   while compiling in `release' mode):                                 */
-  /*                                                                       */
-  /*     _af_debug_disable_horz_hints                                      */
-  /*     _af_debug_disable_vert_hints                                      */
-  /*     _af_debug_disable_blue_hints                                      */
-  /*                                                                       */
-  /*   Additionally, the following functions provide dumps of various      */
-  /*   internal autofit structures to stdout (using `printf'):             */
-  /*                                                                       */
-  /*     af_glyph_hints_dump_points                                        */
-  /*     af_glyph_hints_dump_segments                                      */
-  /*     af_glyph_hints_dump_edges                                         */
-  /*     af_glyph_hints_get_num_segments                                   */
-  /*     af_glyph_hints_get_segment_offset                                 */
-  /*                                                                       */
-  /*   As an argument, they use another global variable:                   */
-  /*                                                                       */
-  /*     _af_debug_hints                                                   */
-  /*                                                                       */
-  /*   Please have a look at the `ftgrid' demo program to see how those    */
-  /*   variables and macros should be used.                                */
-  /*                                                                       */
-  /*   Do not #undef these macros here since the build system might define */
-  /*   them for certain configurations only.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Autofitter debugging
+   *
+   *   If `FT_DEBUG_AUTOFIT` is defined, FreeType provides some means to
+   *   control the autofitter behaviour for debugging purposes with global
+   *   boolean variables (consequently, you should **never** enable this
+   *   while compiling in 'release' mode):
+   *
+   *   ```
+   *     _af_debug_disable_horz_hints
+   *     _af_debug_disable_vert_hints
+   *     _af_debug_disable_blue_hints
+   *   ```
+   *
+   *   Additionally, the following functions provide dumps of various
+   *   internal autofit structures to stdout (using `printf`):
+   *
+   *   ```
+   *     af_glyph_hints_dump_points
+   *     af_glyph_hints_dump_segments
+   *     af_glyph_hints_dump_edges
+   *     af_glyph_hints_get_num_segments
+   *     af_glyph_hints_get_segment_offset
+   *   ```
+   *
+   *   As an argument, they use another global variable:
+   *
+   *   ```
+   *     _af_debug_hints
+   *   ```
+   *
+   *   Please have a look at the `ftgrid` demo program to see how those
+   *   variables and macros should be used.
+   *
+   *   Do not `#undef` these macros here since the build system might define
+   *   them for certain configurations only.
+   */
 /* #define FT_DEBUG_AUTOFIT */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Memory Debugging                                                      */
-  /*                                                                       */
-  /*   FreeType now comes with an integrated memory debugger that is       */
-  /*   capable of detecting simple errors like memory leaks or double      */
-  /*   deletes.  To compile it within your build of the library, you       */
-  /*   should define FT_DEBUG_MEMORY here.                                 */
-  /*                                                                       */
-  /*   Note that the memory debugger is only activated at runtime when     */
-  /*   when the _environment_ variable `FT2_DEBUG_MEMORY' is defined also! */
-  /*                                                                       */
-  /*   Do not #undef this macro here since the build system might define   */
-  /*   it for certain configurations only.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Memory Debugging
+   *
+   *   FreeType now comes with an integrated memory debugger that is capable
+   *   of detecting simple errors like memory leaks or double deletes.  To
+   *   compile it within your build of the library, you should define
+   *   `FT_DEBUG_MEMORY` here.
+   *
+   *   Note that the memory debugger is only activated at runtime when when
+   *   the _environment_ variable `FT2_DEBUG_MEMORY` is defined also!
+   *
+   *   Do not `#undef` this macro here since the build system might define it
+   *   for certain configurations only.
+   */
 /* #define FT_DEBUG_MEMORY */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Module errors                                                         */
-  /*                                                                       */
-  /*   If this macro is set (which is _not_ the default), the higher byte  */
-  /*   of an error code gives the module in which the error has occurred,  */
-  /*   while the lower byte is the real error code.                        */
-  /*                                                                       */
-  /*   Setting this macro makes sense for debugging purposes only, since   */
-  /*   it would break source compatibility of certain programs that use    */
-  /*   FreeType 2.                                                         */
-  /*                                                                       */
-  /*   More details can be found in the files ftmoderr.h and fterrors.h.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Module errors
+   *
+   *   If this macro is set (which is _not_ the default), the higher byte of
+   *   an error code gives the module in which the error has occurred, while
+   *   the lower byte is the real error code.
+   *
+   *   Setting this macro makes sense for debugging purposes only, since it
+   *   would break source compatibility of certain programs that use
+   *   FreeType~2.
+   *
+   *   More details can be found in the files `ftmoderr.h` and `fterrors.h`.
+   */
 #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Position Independent Code                                             */
-  /*                                                                       */
-  /*   If this macro is set (which is _not_ the default), FreeType2 will   */
-  /*   avoid creating constants that require address fixups.  Instead the  */
-  /*   constants will be moved into a struct and additional intialization  */
-  /*   code will be used.                                                  */
-  /*                                                                       */
-  /*   Setting this macro is needed for systems that prohibit address      */
-  /*   fixups, such as BREW.  [Note that standard compilers like gcc or    */
-  /*   clang handle PIC generation automatically; you don't have to set    */
-  /*   FT_CONFIG_OPTION_PIC, which is only necessary for very special      */
-  /*   compilers.]                                                         */
-  /*                                                                       */
-  /*   Note that FT_CONFIG_OPTION_PIC support is not available for all     */
-  /*   modules (see `modules.cfg' for a complete list).  For building with */
-  /*   FT_CONFIG_OPTION_PIC support, do the following.                     */
-  /*                                                                       */
-  /*     0. Clone the repository.                                          */
-  /*     1. Define FT_CONFIG_OPTION_PIC.                                   */
-  /*     2. Remove all subdirectories in `src' that don't have             */
-  /*        FT_CONFIG_OPTION_PIC support.                                  */
-  /*     3. Comment out the corresponding modules in `modules.cfg'.        */
-  /*     4. Compile.                                                       */
-  /*                                                                       */
-/* #define FT_CONFIG_OPTION_PIC */
+  /**************************************************************************
+   *
+   * Error Strings
+   *
+   *   If this macro is set, `FT_Error_String` will return meaningful
+   *   descriptions.  This is not enabled by default to reduce the overall
+   *   size of FreeType.
+   *
+   *   More details can be found in the file `fterrors.h`.
+   */
+/* #define FT_CONFIG_OPTION_ERROR_STRINGS */
 
 
   /*************************************************************************/
@@ -524,50 +515,60 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support       */
-  /* embedded bitmaps in all formats using the SFNT module (namely         */
-  /* TrueType & OpenType).                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_EMBEDDED_BITMAPS` if you want to support
+   * embedded bitmaps in all formats using the 'sfnt' module (namely
+   * TrueType~& OpenType).
+   */
 #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to    */
-  /* load and enumerate the glyph Postscript names in a TrueType or        */
-  /* OpenType file.                                                        */
-  /*                                                                       */
-  /* Note that when you do not compile the `PSNames' module by undefining  */
-  /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will   */
-  /* contain additional code used to read the PS Names table from a font.  */
-  /*                                                                       */
-  /* (By default, the module uses `PSNames' to extract glyph names.)       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_COLOR_LAYERS` if you want to support coloured
+   * outlines (from the 'COLR'/'CPAL' tables) in all formats using the 'sfnt'
+   * module (namely TrueType~& OpenType).
+   */
+#define TT_CONFIG_OPTION_COLOR_LAYERS
+
+
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_POSTSCRIPT_NAMES` if you want to be able to
+   * load and enumerate the glyph Postscript names in a TrueType or OpenType
+   * file.
+   *
+   * Note that when you do not compile the 'psnames' module by undefining the
+   * above `FT_CONFIG_OPTION_POSTSCRIPT_NAMES`, the 'sfnt' module will
+   * contain additional code used to read the PS Names table from a font.
+   *
+   * (By default, the module uses 'psnames' to extract glyph names.)
+   */
 #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to       */
-  /* access the internal name table in a SFNT-based format like TrueType   */
-  /* or OpenType.  The name table contains various strings used to         */
-  /* describe the font, like family name, copyright, version, etc.  It     */
-  /* does not contain any glyph name though.                               */
-  /*                                                                       */
-  /* Accessing SFNT names is done through the functions declared in        */
-  /* `ftsnames.h'.                                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_SFNT_NAMES` if your applications need to access
+   * the internal name table in a SFNT-based format like TrueType or
+   * OpenType.  The name table contains various strings used to describe the
+   * font, like family name, copyright, version, etc.  It does not contain
+   * any glyph name though.
+   *
+   * Accessing SFNT names is done through the functions declared in
+   * `ftsnames.h`.
+   */
 #define TT_CONFIG_OPTION_SFNT_NAMES
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TrueType CMap support                                                 */
-  /*                                                                       */
-  /*   Here you can fine-tune which TrueType CMap table format shall be    */
-  /*   supported.                                                          */
+  /**************************************************************************
+   *
+   * TrueType CMap support
+   *
+   *   Here you can fine-tune which TrueType CMap table format shall be
+   *   supported.
+   */
 #define TT_CONFIG_CMAP_FORMAT_0
 #define TT_CONFIG_CMAP_FORMAT_2
 #define TT_CONFIG_CMAP_FORMAT_4
@@ -587,131 +588,130 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile   */
-  /* a bytecode interpreter in the TrueType driver.                        */
-  /*                                                                       */
-  /* By undefining this, you will only compile the code necessary to load  */
-  /* TrueType glyphs without hinting.                                      */
-  /*                                                                       */
-  /*   Do not #undef this macro here, since the build system might         */
-  /*   define it for certain configurations only.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_BYTECODE_INTERPRETER` if you want to compile a
+   * bytecode interpreter in the TrueType driver.
+   *
+   * By undefining this, you will only compile the code necessary to load
+   * TrueType glyphs without hinting.
+   *
+   * Do not `#undef` this macro here, since the build system might define it
+   * for certain configurations only.
+   */
 #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_SUBPIXEL_HINTING if you want to compile       */
-  /* subpixel hinting support into the TrueType driver.  This modifies the */
-  /* TrueType hinting mechanism when anything but FT_RENDER_MODE_MONO is   */
-  /* requested.                                                            */
-  /*                                                                       */
-  /* In particular, it modifies the bytecode interpreter to interpret (or  */
-  /* not) instructions in a certain way so that all TrueType fonts look    */
-  /* like they do in a Windows ClearType (DirectWrite) environment.  See   */
-  /* [1] for a technical overview on what this means.  See `ttinterp.h'    */
-  /* for more details on the LEAN option.                                  */
-  /*                                                                       */
-  /* There are three possible values.                                      */
-  /*                                                                       */
-  /* Value 1:                                                              */
-  /*    This value is associated with the `Infinality' moniker,            */
-  /*    contributed by an individual nicknamed Infinality with the goal of */
-  /*    making TrueType fonts render better than on Windows.  A high       */
-  /*    amount of configurability and flexibility, down to rules for       */
-  /*    single glyphs in fonts, but also very slow.  Its experimental and  */
-  /*    slow nature and the original developer losing interest meant that  */
-  /*    this option was never enabled in default builds.                   */
-  /*                                                                       */
-  /*    The corresponding interpreter version is v38.                      */
-  /*                                                                       */
-  /* Value 2:                                                              */
-  /*    The new default mode for the TrueType driver.  The Infinality code */
-  /*    base was stripped to the bare minimum and all configurability      */
-  /*    removed in the name of speed and simplicity.  The configurability  */
-  /*    was mainly aimed at legacy fonts like Arial, Times New Roman, or   */
-  /*    Courier.  Legacy fonts are fonts that modify vertical stems to     */
-  /*    achieve clean black-and-white bitmaps.  The new mode focuses on    */
-  /*    applying a minimal set of rules to all fonts indiscriminately so   */
-  /*    that modern and web fonts render well while legacy fonts render    */
-  /*    okay.                                                              */
-  /*                                                                       */
-  /*    The corresponding interpreter version is v40.                      */
-  /*                                                                       */
-  /* Value 3:                                                              */
-  /*    Compile both, making both v38 and v40 available (the latter is the */
-  /*    default).                                                          */
-  /*                                                                       */
-  /* By undefining these, you get rendering behavior like on Windows       */
-  /* without ClearType, i.e., Windows XP without ClearType enabled and     */
-  /* Win9x (interpreter version v35).  Or not, depending on how much       */
-  /* hinting blood and testing tears the font designer put into a given    */
-  /* font.  If you define one or both subpixel hinting options, you can    */
-  /* switch between between v35 and the ones you define (using             */
-  /* `FT_Property_Set').                                                   */
-  /*                                                                       */
-  /* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be      */
-  /* defined.                                                              */
-  /*                                                                       */
-  /* [1] https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_SUBPIXEL_HINTING` if you want to compile
+   * subpixel hinting support into the TrueType driver.  This modifies the
+   * TrueType hinting mechanism when anything but `FT_RENDER_MODE_MONO` is
+   * requested.
+   *
+   * In particular, it modifies the bytecode interpreter to interpret (or
+   * not) instructions in a certain way so that all TrueType fonts look like
+   * they do in a Windows ClearType (DirectWrite) environment.  See [1] for a
+   * technical overview on what this means.  See `ttinterp.h` for more
+   * details on the LEAN option.
+   *
+   * There are three possible values.
+   *
+   * Value 1:
+   *   This value is associated with the 'Infinality' moniker, contributed by
+   *   an individual nicknamed Infinality with the goal of making TrueType
+   *   fonts render better than on Windows.  A high amount of configurability
+   *   and flexibility, down to rules for single glyphs in fonts, but also
+   *   very slow.  Its experimental and slow nature and the original
+   *   developer losing interest meant that this option was never enabled in
+   *   default builds.
+   *
+   *   The corresponding interpreter version is v38.
+   *
+   * Value 2:
+   *   The new default mode for the TrueType driver.  The Infinality code
+   *   base was stripped to the bare minimum and all configurability removed
+   *   in the name of speed and simplicity.  The configurability was mainly
+   *   aimed at legacy fonts like 'Arial', 'Times New Roman', or 'Courier'.
+   *   Legacy fonts are fonts that modify vertical stems to achieve clean
+   *   black-and-white bitmaps.  The new mode focuses on applying a minimal
+   *   set of rules to all fonts indiscriminately so that modern and web
+   *   fonts render well while legacy fonts render okay.
+   *
+   *   The corresponding interpreter version is v40.
+   *
+   * Value 3:
+   *   Compile both, making both v38 and v40 available (the latter is the
+   *   default).
+   *
+   * By undefining these, you get rendering behavior like on Windows without
+   * ClearType, i.e., Windows XP without ClearType enabled and Win9x
+   * (interpreter version v35).  Or not, depending on how much hinting blood
+   * and testing tears the font designer put into a given font.  If you
+   * define one or both subpixel hinting options, you can switch between
+   * between v35 and the ones you define (using `FT_Property_Set`).
+   *
+   * This option requires `TT_CONFIG_OPTION_BYTECODE_INTERPRETER` to be
+   * defined.
+   *
+   * [1]
+   * https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx
+   */
 /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING  1         */
 #define TT_CONFIG_OPTION_SUBPIXEL_HINTING  2
 /* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING  ( 1 | 2 ) */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the        */
-  /* TrueType glyph loader to use Apple's definition of how to handle      */
-  /* component offsets in composite glyphs.                                */
-  /*                                                                       */
-  /* Apple and MS disagree on the default behavior of component offsets    */
-  /* in composites.  Apple says that they should be scaled by the scaling  */
-  /* factors in the transformation matrix (roughly, it's more complex)     */
-  /* while MS says they should not.  OpenType defines two bits in the      */
-  /* composite flags array which can be used to disambiguate, but old      */
-  /* fonts will not have them.                                             */
-  /*                                                                       */
-  /*   https://www.microsoft.com/typography/otspec/glyf.htm                */
-  /*   https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6glyf.html */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED` to compile the
+   * TrueType glyph loader to use Apple's definition of how to handle
+   * component offsets in composite glyphs.
+   *
+   * Apple and MS disagree on the default behavior of component offsets in
+   * composites.  Apple says that they should be scaled by the scaling
+   * factors in the transformation matrix (roughly, it's more complex) while
+   * MS says they should not.  OpenType defines two bits in the composite
+   * flags array which can be used to disambiguate, but old fonts will not
+   * have them.
+   *
+   *   https://www.microsoft.com/typography/otspec/glyf.htm
+   *   https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6glyf.html
+   */
 #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include         */
-  /* support for Apple's distortable font technology (fvar, gvar, cvar,    */
-  /* and avar tables).  This has many similarities to Type 1 Multiple      */
-  /* Masters support.                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_GX_VAR_SUPPORT` if you want to include support
+   * for Apple's distortable font technology ('fvar', 'gvar', 'cvar', and
+   * 'avar' tables).  Tagged 'Font Variations', this is now part of OpenType
+   * also.  This has many similarities to Type~1 Multiple Masters support.
+   */
 #define TT_CONFIG_OPTION_GX_VAR_SUPPORT
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define TT_CONFIG_OPTION_BDF if you want to include support for        */
-  /* an embedded `BDF ' table within SFNT-based bitmap formats.            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_BDF` if you want to include support for an
+   * embedded 'BDF~' table within SFNT-based bitmap formats.
+   */
 #define TT_CONFIG_OPTION_BDF
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Option TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES controls the maximum     */
-  /* number of bytecode instructions executed for a single run of the      */
-  /* bytecode interpreter, needed to prevent infinite loops.  You don't    */
-  /* want to change this except for very special situations (e.g., making  */
-  /* a library fuzzer spend less time to handle broken fonts).             */
-  /*                                                                       */
-  /* It is not expected that this value is ever modified by a configuring  */
-  /* script; instead, it gets surrounded with #ifndef ... #endif so that   */
-  /* the value can be set as a preprocessor option on the compiler's       */
-  /* command line.                                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Option `TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES` controls the maximum
+   * number of bytecode instructions executed for a single run of the
+   * bytecode interpreter, needed to prevent infinite loops.  You don't want
+   * to change this except for very special situations (e.g., making a
+   * library fuzzer spend less time to handle broken fonts).
+   *
+   * It is not expected that this value is ever modified by a configuring
+   * script; instead, it gets surrounded with `#ifndef ... #endif` so that
+   * the value can be set as a preprocessor option on the compiler's command
+   * line.
+   */
 #ifndef TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES
 #define TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES  1000000L
 #endif
@@ -726,59 +726,58 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* T1_MAX_DICT_DEPTH is the maximum depth of nest dictionaries and       */
-  /* arrays in the Type 1 stream (see t1load.c).  A minimum of 4 is        */
-  /* required.                                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * `T1_MAX_DICT_DEPTH` is the maximum depth of nest dictionaries and arrays
+   * in the Type~1 stream (see `t1load.c`).  A minimum of~4 is required.
+   */
 #define T1_MAX_DICT_DEPTH  5
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine   */
-  /* calls during glyph loading.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * `T1_MAX_SUBRS_CALLS` details the maximum number of nested sub-routine
+   * calls during glyph loading.
+   */
 #define T1_MAX_SUBRS_CALLS  16
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity.  A     */
-  /* minimum of 16 is required.                                            */
-  /*                                                                       */
-  /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * `T1_MAX_CHARSTRING_OPERANDS` is the charstring stack's capacity.  A
+   * minimum of~16 is required.
+   *
+   * The Chinese font 'MingTiEG-Medium' (covering the CNS 11643 character
+   * set) needs 256.
+   */
 #define T1_MAX_CHARSTRINGS_OPERANDS  256
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define this configuration macro if you want to prevent the            */
-  /* compilation of `t1afm', which is in charge of reading Type 1 AFM      */
-  /* files into an existing face.  Note that if set, the T1 driver will be */
-  /* unable to produce kerning distances.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define this configuration macro if you want to prevent the compilation
+   * of the 't1afm' module, which is in charge of reading Type~1 AFM files
+   * into an existing face.  Note that if set, the Type~1 driver will be
+   * unable to produce kerning distances.
+   */
 #undef T1_CONFIG_OPTION_NO_AFM
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define this configuration macro if you want to prevent the            */
-  /* compilation of the Multiple Masters font support in the Type 1        */
-  /* driver.                                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Define this configuration macro if you want to prevent the compilation
+   * of the Multiple Masters font support in the Type~1 driver.
+   */
 #undef T1_CONFIG_OPTION_NO_MM_SUPPORT
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* T1_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe Type 1     */
-  /* engine gets compiled into FreeType.  If defined, it is possible to    */
-  /* switch between the two engines using the `hinting-engine' property of */
-  /* the type1 driver module.                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * `T1_CONFIG_OPTION_OLD_ENGINE` controls whether the pre-Adobe Type~1
+   * engine gets compiled into FreeType.  If defined, it is possible to
+   * switch between the two engines using the `hinting-engine` property of
+   * the 'type1' driver module.
+   */
 /* #define T1_CONFIG_OPTION_OLD_ENGINE */
 
 
@@ -791,17 +790,16 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Using CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4} it is      */
-  /* possible to set up the default values of the four control points that */
-  /* define the stem darkening behaviour of the (new) CFF engine.  For     */
-  /* more details please read the documentation of the                     */
-  /* `darkening-parameters' property (file `ftdriver.h'), which allows the */
-  /* control at run-time.                                                  */
-  /*                                                                       */
-  /* Do *not* undefine these macros!                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Using `CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4}` it is
+   * possible to set up the default values of the four control points that
+   * define the stem darkening behaviour of the (new) CFF engine.  For more
+   * details please read the documentation of the `darkening-parameters`
+   * property (file `ftdriver.h`), which allows the control at run-time.
+   *
+   * Do **not** undefine these macros!
+   */
 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1   500
 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1   400
 
@@ -815,13 +813,13 @@ FT_BEGIN_HEADER
 #define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4     0
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* CFF_CONFIG_OPTION_OLD_ENGINE controls whether the pre-Adobe CFF       */
-  /* engine gets compiled into FreeType.  If defined, it is possible to    */
-  /* switch between the two engines using the `hinting-engine' property of */
-  /* the cff driver module.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * `CFF_CONFIG_OPTION_OLD_ENGINE` controls whether the pre-Adobe CFF engine
+   * gets compiled into FreeType.  If defined, it is possible to switch
+   * between the two engines using the `hinting-engine` property of the 'cff'
+   * driver module.
+   */
 /* #define CFF_CONFIG_OPTION_OLD_ENGINE */
 
 
@@ -834,21 +832,21 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* There are many PCF fonts just called `Fixed' which look completely    */
-  /* different, and which have nothing to do with each other.  When        */
-  /* selecting `Fixed' in KDE or Gnome one gets results that appear rather */
-  /* random, the style changes often if one changes the size and one       */
-  /* cannot select some fonts at all.  This option makes the PCF module    */
-  /* prepend the foundry name (plus a space) to the family name.           */
-  /*                                                                       */
-  /* We also check whether we have `wide' characters; all put together, we */
-  /* get family names like `Sony Fixed' or `Misc Fixed Wide'.              */
-  /*                                                                       */
-  /* If this option is activated, it can be controlled with the            */
-  /* `no-long-family-names' property of the pcf driver module.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * There are many PCF fonts just called 'Fixed' which look completely
+   * different, and which have nothing to do with each other.  When selecting
+   * 'Fixed' in KDE or Gnome one gets results that appear rather random, the
+   * style changes often if one changes the size and one cannot select some
+   * fonts at all.  This option makes the 'pcf' module prepend the foundry
+   * name (plus a space) to the family name.
+   *
+   * We also check whether we have 'wide' characters; all put together, we
+   * get family names like 'Sony Fixed' or 'Misc Fixed Wide'.
+   *
+   * If this option is activated, it can be controlled with the
+   * `no-long-family-names` property of the 'pcf' driver module.
+   */
 /* #define PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
 
 
@@ -861,69 +859,76 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Compile autofit module with CJK (Chinese, Japanese, Korean) script    */
-  /* support.                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Compile 'autofit' module with CJK (Chinese, Japanese, Korean) script
+   * support.
+   */
 #define AF_CONFIG_OPTION_CJK
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Compile autofit module with fallback Indic script support, covering   */
-  /* some scripts that the `latin' submodule of the autofit module doesn't */
-  /* (yet) handle.                                                         */
-  /*                                                                       */
+
+  /**************************************************************************
+   *
+   * Compile 'autofit' module with fallback Indic script support, covering
+   * some scripts that the 'latin' submodule of the 'autofit' module doesn't
+   * (yet) handle.
+   */
 #define AF_CONFIG_OPTION_INDIC
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Compile autofit module with warp hinting.  The idea of the warping    */
-  /* code is to slightly scale and shift a glyph within a single dimension */
-  /* so that as much of its segments are aligned (more or less) on the     */
-  /* grid.  To find out the optimal scaling and shifting value, various    */
-  /* parameter combinations are tried and scored.                          */
-  /*                                                                       */
-  /* This experimental option is active only if the rendering mode is      */
-  /* FT_RENDER_MODE_LIGHT; you can switch warping on and off with the      */
-  /* `warping' property of the auto-hinter (see file `ftdriver.h' for more */
-  /* information; by default it is switched off).                          */
-  /*                                                                       */
+
+  /**************************************************************************
+   *
+   * Compile 'autofit' module with warp hinting.  The idea of the warping
+   * code is to slightly scale and shift a glyph within a single dimension so
+   * that as much of its segments are aligned (more or less) on the grid.  To
+   * find out the optimal scaling and shifting value, various parameter
+   * combinations are tried and scored.
+   *
+   * You can switch warping on and off with the `warping` property of the
+   * auto-hinter (see file `ftdriver.h` for more information; by default it
+   * is switched off).
+   *
+   * This experimental option is not active if the rendering mode is
+   * `FT_RENDER_MODE_LIGHT`.
+   */
 #define AF_CONFIG_OPTION_USE_WARPER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Use TrueType-like size metrics for `light' auto-hinting.              */
-  /*                                                                       */
-  /* It is strongly recommended to avoid this option, which exists only to */
-  /* help some legacy applications retain its appearance and behaviour     */
-  /* with respect to auto-hinted TrueType fonts.                           */
-  /*                                                                       */
-  /* The very reason this option exists at all are GNU/Linux distributions */
-  /* like Fedora that did not un-patch the following change (which was     */
-  /* present in FreeType between versions 2.4.6 and 2.7.1, inclusive).     */
-  /*                                                                       */
-  /*   2011-07-16  Steven Chu  <steven.f.chu@gmail.com>                    */
-  /*                                                                       */
-  /*     [truetype] Fix metrics on size request for scalable fonts.        */
-  /*                                                                       */
-  /* This problematic commit is now reverted (more or less).               */
-  /*                                                                       */
+
+  /**************************************************************************
+   *
+   * Use TrueType-like size metrics for 'light' auto-hinting.
+   *
+   * It is strongly recommended to avoid this option, which exists only to
+   * help some legacy applications retain its appearance and behaviour with
+   * respect to auto-hinted TrueType fonts.
+   *
+   * The very reason this option exists at all are GNU/Linux distributions
+   * like Fedora that did not un-patch the following change (which was
+   * present in FreeType between versions 2.4.6 and 2.7.1, inclusive).
+   *
+   * ```
+   *   2011-07-16  Steven Chu  <steven.f.chu@gmail.com>
+   *
+   *     [truetype] Fix metrics on size request for scalable fonts.
+   * ```
+   *
+   * This problematic commit is now reverted (more or less).
+   */
 /* #define AF_CONFIG_OPTION_TT_SIZE_METRICS */
 
   /* */
 
 
   /*
-   * This macro is obsolete.  Support has been removed in FreeType
-   * version 2.5.
+   * This macro is obsolete.  Support has been removed in FreeType version
+   * 2.5.
    */
 /* #define FT_CONFIG_OPTION_OLD_INTERNALS */
 
 
   /*
-   * This macro is defined if native TrueType hinting is requested by the
-   * definitions above.
+   * The next three macros are defined if native TrueType hinting is
+   * requested by the definitions above.  Don't change this.
    */
 #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
 #define  TT_USE_BYTECODE_INTERPRETER
@@ -942,7 +947,7 @@ FT_BEGIN_HEADER
 
   /*
    * Check CFF darkening parameters.  The checks are the same as in function
-   * `cff_property_set' in file `cffdrivr.c'.
+   * `cff_property_set` in file `cffdrivr.c`.
    */
 #if CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 < 0   || \
     CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 < 0   || \
diff --git a/thirdparty/freetype/include/freetype/config/ftstdlib.h b/thirdparty/freetype/include/freetype/config/ftstdlib.h
index 42f9a06e43..438b6145d5 100644
--- a/thirdparty/freetype/include/freetype/config/ftstdlib.h
+++ b/thirdparty/freetype/include/freetype/config/ftstdlib.h
@@ -1,31 +1,31 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftstdlib.h                                                             */
-/*                                                                         */
-/*    ANSI-specific library and header configuration file (specification   */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to group all #includes to the ANSI C library that   */
-  /* FreeType normally requires.  It also defines macros to rename the     */
-  /* standard functions within the FreeType source code.                   */
-  /*                                                                       */
-  /* Load a file which defines FTSTDLIB_H_ before this one to override it. */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftstdlib.h
+ *
+ *   ANSI-specific library and header configuration file (specification
+ *   only).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to group all `#includes` to the ANSI~C library that
+   * FreeType normally requires.  It also defines macros to rename the
+   * standard functions within the FreeType source code.
+   *
+   * Load a file which defines `FTSTDLIB_H_` before this one to override it.
+   *
+   */
 
 
 #ifndef FTSTDLIB_H_
@@ -37,23 +37,23 @@
 #define ft_ptrdiff_t  ptrdiff_t
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                           integer limits                           */
-  /*                                                                    */
-  /* UINT_MAX and ULONG_MAX are used to automatically compute the size  */
-  /* of `int' and `long' in bytes at compile-time.  So far, this works  */
-  /* for all platforms the library has been tested on.                  */
-  /*                                                                    */
-  /* Note that on the extremely rare platforms that do not provide      */
-  /* integer types that are _exactly_ 16 and 32 bits wide (e.g. some    */
-  /* old Crays where `int' is 36 bits), we do not make any guarantee    */
-  /* about the correct behaviour of FT2 with all fonts.                 */
-  /*                                                                    */
-  /* In these case, `ftconfig.h' will refuse to compile anyway with a   */
-  /* message like `couldn't find 32-bit type' or something similar.     */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                          integer limits
+   *
+   * `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of
+   * `int` and `long` in bytes at compile-time.  So far, this works for all
+   * platforms the library has been tested on.
+   *
+   * Note that on the extremely rare platforms that do not provide integer
+   * types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
+   * `int` is 36~bits), we do not make any guarantee about the correct
+   * behaviour of FreeType~2 with all fonts.
+   *
+   * In these cases, `ftconfig.h` will refuse to compile anyway with a
+   * message like 'couldn't find 32-bit type' or something similar.
+   *
+   */
 
 
 #include <limits.h>
@@ -68,11 +68,11 @@
 #define FT_ULONG_MAX   ULONG_MAX
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                 character and string processing                    */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                character and string processing
+   *
+   */
 
 
 #include <string.h>
@@ -92,11 +92,11 @@
 #define ft_strstr   strstr
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                           file handling                            */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                          file handling
+   *
+   */
 
 
 #include <stdio.h>
@@ -110,11 +110,11 @@
 #define ft_sprintf  sprintf
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                             sorting                                */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                            sorting
+   *
+   */
 
 
 #include <stdlib.h>
@@ -122,11 +122,11 @@
 #define ft_qsort  qsort
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                        memory allocation                           */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                       memory allocation
+   *
+   */
 
 
 #define ft_scalloc   calloc
@@ -135,36 +135,36 @@
 #define ft_srealloc  realloc
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                          miscellaneous                             */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                         miscellaneous
+   *
+   */
 
 
 #define ft_strtol  strtol
 #define ft_getenv  getenv
 
 
-  /**********************************************************************/
-  /*                                                                    */
-  /*                         execution control                          */
-  /*                                                                    */
-  /**********************************************************************/
+  /**************************************************************************
+   *
+   *                        execution control
+   *
+   */
 
 
 #include <setjmp.h>
 
-#define ft_jmp_buf     jmp_buf  /* note: this cannot be a typedef since */
-                                /*       jmp_buf is defined as a macro  */
-                                /*       on certain platforms           */
+#define ft_jmp_buf     jmp_buf  /* note: this cannot be a typedef since  */
+                                /*       `jmp_buf` is defined as a macro */
+                                /*       on certain platforms            */
 
 #define ft_longjmp     longjmp
 #define ft_setjmp( b ) setjmp( *(ft_jmp_buf*) &(b) ) /* same thing here */
 
 
-  /* the following is only used for debugging purposes, i.e., if */
-  /* FT_DEBUG_LEVEL_ERROR or FT_DEBUG_LEVEL_TRACE are defined    */
+  /* The following is only used for debugging purposes, i.e., if   */
+  /* `FT_DEBUG_LEVEL_ERROR` or `FT_DEBUG_LEVEL_TRACE` are defined. */
 
 #include <stdarg.h>
 
diff --git a/thirdparty/freetype/include/freetype/freetype.h b/thirdparty/freetype/include/freetype/freetype.h
index 96644046e4..4f2eaca691 100644
--- a/thirdparty/freetype/include/freetype/freetype.h
+++ b/thirdparty/freetype/include/freetype/freetype.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  freetype.h                                                             */
-/*                                                                         */
-/*    FreeType high-level API and common types (specification only).       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * freetype.h
+ *
+ *   FreeType high-level API and common types (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FREETYPE_H_
@@ -39,56 +39,55 @@ FT_BEGIN_HEADER
 
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    header_inclusion                                                   */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    FreeType's header inclusion scheme                                 */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    How client applications should include FreeType header files.      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    To be as flexible as possible (and for historical reasons),        */
-  /*    FreeType uses a very special inclusion scheme to load header       */
-  /*    files, for example                                                 */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      #include <ft2build.h>                                            */
-  /*                                                                       */
-  /*      #include FT_FREETYPE_H                                           */
-  /*      #include FT_OUTLINE_H                                            */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    A compiler and its preprocessor only needs an include path to find */
-  /*    the file `ft2build.h'; the exact locations and names of the other  */
-  /*    FreeType header files are hidden by preprocessor macro names,      */
-  /*    loaded by `ft2build.h'.  The API documentation always gives the    */
-  /*    header macro name needed for a particular function.                */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   header_inclusion
+   *
+   * @title:
+   *   FreeType's header inclusion scheme
+   *
+   * @abstract:
+   *   How client applications should include FreeType header files.
+   *
+   * @description:
+   *   To be as flexible as possible (and for historical reasons), FreeType
+   *   uses a very special inclusion scheme to load header files, for example
+   *
+   *   ```
+   *     #include <ft2build.h>
+   *
+   *     #include FT_FREETYPE_H
+   *     #include FT_OUTLINE_H
+   *   ```
+   *
+   *   A compiler and its preprocessor only needs an include path to find the
+   *   file `ft2build.h`; the exact locations and names of the other FreeType
+   *   header files are hidden by @header_file_macros, loaded by
+   *   `ft2build.h`.  The API documentation always gives the header macro
+   *   name needed for a particular function.
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    user_allocation                                                    */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    User allocation                                                    */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    How client applications should allocate FreeType data structures.  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FreeType assumes that structures allocated by the user and passed  */
-  /*    as arguments are zeroed out except for the actual data.  In other  */
-  /*    words, it is recommended to use `calloc' (or variants of it)       */
-  /*    instead of `malloc' for allocation.                                */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   user_allocation
+   *
+   * @title:
+   *   User allocation
+   *
+   * @abstract:
+   *   How client applications should allocate FreeType data structures.
+   *
+   * @description:
+   *   FreeType assumes that structures allocated by the user and passed as
+   *   arguments are zeroed out except for the actual data.  In other words,
+   *   it is recommended to use `calloc` (or variants of it) instead of
+   *   `malloc` for allocation.
+   *
+   */
 
 
 
@@ -101,219 +100,219 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    base_interface                                                     */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Base Interface                                                     */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    The FreeType~2 base font interface.                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section describes the most important public high-level API    */
-  /*    functions of FreeType~2.                                           */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_Library                                                         */
-  /*    FT_Face                                                            */
-  /*    FT_Size                                                            */
-  /*    FT_GlyphSlot                                                       */
-  /*    FT_CharMap                                                         */
-  /*    FT_Encoding                                                        */
-  /*    FT_ENC_TAG                                                         */
-  /*                                                                       */
-  /*    FT_FaceRec                                                         */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_SCALABLE                                              */
-  /*    FT_FACE_FLAG_FIXED_SIZES                                           */
-  /*    FT_FACE_FLAG_FIXED_WIDTH                                           */
-  /*    FT_FACE_FLAG_HORIZONTAL                                            */
-  /*    FT_FACE_FLAG_VERTICAL                                              */
-  /*    FT_FACE_FLAG_COLOR                                                 */
-  /*    FT_FACE_FLAG_SFNT                                                  */
-  /*    FT_FACE_FLAG_CID_KEYED                                             */
-  /*    FT_FACE_FLAG_TRICKY                                                */
-  /*    FT_FACE_FLAG_KERNING                                               */
-  /*    FT_FACE_FLAG_MULTIPLE_MASTERS                                      */
-  /*    FT_FACE_FLAG_VARIATION                                             */
-  /*    FT_FACE_FLAG_GLYPH_NAMES                                           */
-  /*    FT_FACE_FLAG_EXTERNAL_STREAM                                       */
-  /*    FT_FACE_FLAG_HINTER                                                */
-  /*                                                                       */
-  /*    FT_HAS_HORIZONTAL                                                  */
-  /*    FT_HAS_VERTICAL                                                    */
-  /*    FT_HAS_KERNING                                                     */
-  /*    FT_HAS_FIXED_SIZES                                                 */
-  /*    FT_HAS_GLYPH_NAMES                                                 */
-  /*    FT_HAS_COLOR                                                       */
-  /*    FT_HAS_MULTIPLE_MASTERS                                            */
-  /*                                                                       */
-  /*    FT_IS_SFNT                                                         */
-  /*    FT_IS_SCALABLE                                                     */
-  /*    FT_IS_FIXED_WIDTH                                                  */
-  /*    FT_IS_CID_KEYED                                                    */
-  /*    FT_IS_TRICKY                                                       */
-  /*    FT_IS_NAMED_INSTANCE                                               */
-  /*    FT_IS_VARIATION                                                    */
-  /*                                                                       */
-  /*    FT_STYLE_FLAG_BOLD                                                 */
-  /*    FT_STYLE_FLAG_ITALIC                                               */
-  /*                                                                       */
-  /*    FT_SizeRec                                                         */
-  /*    FT_Size_Metrics                                                    */
-  /*                                                                       */
-  /*    FT_GlyphSlotRec                                                    */
-  /*    FT_Glyph_Metrics                                                   */
-  /*    FT_SubGlyph                                                        */
-  /*                                                                       */
-  /*    FT_Bitmap_Size                                                     */
-  /*                                                                       */
-  /*    FT_Init_FreeType                                                   */
-  /*    FT_Done_FreeType                                                   */
-  /*                                                                       */
-  /*    FT_New_Face                                                        */
-  /*    FT_Done_Face                                                       */
-  /*    FT_Reference_Face                                                  */
-  /*    FT_New_Memory_Face                                                 */
-  /*    FT_Face_Properties                                                 */
-  /*    FT_Open_Face                                                       */
-  /*    FT_Open_Args                                                       */
-  /*    FT_Parameter                                                       */
-  /*    FT_Attach_File                                                     */
-  /*    FT_Attach_Stream                                                   */
-  /*                                                                       */
-  /*    FT_Set_Char_Size                                                   */
-  /*    FT_Set_Pixel_Sizes                                                 */
-  /*    FT_Request_Size                                                    */
-  /*    FT_Select_Size                                                     */
-  /*    FT_Size_Request_Type                                               */
-  /*    FT_Size_RequestRec                                                 */
-  /*    FT_Size_Request                                                    */
-  /*    FT_Set_Transform                                                   */
-  /*    FT_Load_Glyph                                                      */
-  /*    FT_Get_Char_Index                                                  */
-  /*    FT_Get_First_Char                                                  */
-  /*    FT_Get_Next_Char                                                   */
-  /*    FT_Get_Name_Index                                                  */
-  /*    FT_Load_Char                                                       */
-  /*                                                                       */
-  /*    FT_OPEN_MEMORY                                                     */
-  /*    FT_OPEN_STREAM                                                     */
-  /*    FT_OPEN_PATHNAME                                                   */
-  /*    FT_OPEN_DRIVER                                                     */
-  /*    FT_OPEN_PARAMS                                                     */
-  /*                                                                       */
-  /*    FT_LOAD_DEFAULT                                                    */
-  /*    FT_LOAD_RENDER                                                     */
-  /*    FT_LOAD_MONOCHROME                                                 */
-  /*    FT_LOAD_LINEAR_DESIGN                                              */
-  /*    FT_LOAD_NO_SCALE                                                   */
-  /*    FT_LOAD_NO_HINTING                                                 */
-  /*    FT_LOAD_NO_BITMAP                                                  */
-  /*    FT_LOAD_NO_AUTOHINT                                                */
-  /*    FT_LOAD_COLOR                                                      */
-  /*                                                                       */
-  /*    FT_LOAD_VERTICAL_LAYOUT                                            */
-  /*    FT_LOAD_IGNORE_TRANSFORM                                           */
-  /*    FT_LOAD_FORCE_AUTOHINT                                             */
-  /*    FT_LOAD_NO_RECURSE                                                 */
-  /*    FT_LOAD_PEDANTIC                                                   */
-  /*                                                                       */
-  /*    FT_LOAD_TARGET_NORMAL                                              */
-  /*    FT_LOAD_TARGET_LIGHT                                               */
-  /*    FT_LOAD_TARGET_MONO                                                */
-  /*    FT_LOAD_TARGET_LCD                                                 */
-  /*    FT_LOAD_TARGET_LCD_V                                               */
-  /*                                                                       */
-  /*    FT_LOAD_TARGET_MODE                                                */
-  /*                                                                       */
-  /*    FT_Render_Glyph                                                    */
-  /*    FT_Render_Mode                                                     */
-  /*    FT_Get_Kerning                                                     */
-  /*    FT_Kerning_Mode                                                    */
-  /*    FT_Get_Track_Kerning                                               */
-  /*    FT_Get_Glyph_Name                                                  */
-  /*    FT_Get_Postscript_Name                                             */
-  /*                                                                       */
-  /*    FT_CharMapRec                                                      */
-  /*    FT_Select_Charmap                                                  */
-  /*    FT_Set_Charmap                                                     */
-  /*    FT_Get_Charmap_Index                                               */
-  /*                                                                       */
-  /*    FT_Get_FSType_Flags                                                */
-  /*    FT_Get_SubGlyph_Info                                               */
-  /*                                                                       */
-  /*    FT_Face_Internal                                                   */
-  /*    FT_Size_Internal                                                   */
-  /*    FT_Slot_Internal                                                   */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_XXX                                                   */
-  /*    FT_STYLE_FLAG_XXX                                                  */
-  /*    FT_OPEN_XXX                                                        */
-  /*    FT_LOAD_XXX                                                        */
-  /*    FT_LOAD_TARGET_XXX                                                 */
-  /*    FT_SUBGLYPH_FLAG_XXX                                               */
-  /*    FT_FSTYPE_XXX                                                      */
-  /*                                                                       */
-  /*    FT_HAS_FAST_GLYPHS                                                 */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   base_interface
+   *
+   * @title:
+   *   Base Interface
+   *
+   * @abstract:
+   *   The FreeType~2 base font interface.
+   *
+   * @description:
+   *   This section describes the most important public high-level API
+   *   functions of FreeType~2.
+   *
+   * @order:
+   *   FT_Library
+   *   FT_Face
+   *   FT_Size
+   *   FT_GlyphSlot
+   *   FT_CharMap
+   *   FT_Encoding
+   *   FT_ENC_TAG
+   *
+   *   FT_FaceRec
+   *
+   *   FT_FACE_FLAG_SCALABLE
+   *   FT_FACE_FLAG_FIXED_SIZES
+   *   FT_FACE_FLAG_FIXED_WIDTH
+   *   FT_FACE_FLAG_HORIZONTAL
+   *   FT_FACE_FLAG_VERTICAL
+   *   FT_FACE_FLAG_COLOR
+   *   FT_FACE_FLAG_SFNT
+   *   FT_FACE_FLAG_CID_KEYED
+   *   FT_FACE_FLAG_TRICKY
+   *   FT_FACE_FLAG_KERNING
+   *   FT_FACE_FLAG_MULTIPLE_MASTERS
+   *   FT_FACE_FLAG_VARIATION
+   *   FT_FACE_FLAG_GLYPH_NAMES
+   *   FT_FACE_FLAG_EXTERNAL_STREAM
+   *   FT_FACE_FLAG_HINTER
+   *
+   *   FT_HAS_HORIZONTAL
+   *   FT_HAS_VERTICAL
+   *   FT_HAS_KERNING
+   *   FT_HAS_FIXED_SIZES
+   *   FT_HAS_GLYPH_NAMES
+   *   FT_HAS_COLOR
+   *   FT_HAS_MULTIPLE_MASTERS
+   *
+   *   FT_IS_SFNT
+   *   FT_IS_SCALABLE
+   *   FT_IS_FIXED_WIDTH
+   *   FT_IS_CID_KEYED
+   *   FT_IS_TRICKY
+   *   FT_IS_NAMED_INSTANCE
+   *   FT_IS_VARIATION
+   *
+   *   FT_STYLE_FLAG_BOLD
+   *   FT_STYLE_FLAG_ITALIC
+   *
+   *   FT_SizeRec
+   *   FT_Size_Metrics
+   *
+   *   FT_GlyphSlotRec
+   *   FT_Glyph_Metrics
+   *   FT_SubGlyph
+   *
+   *   FT_Bitmap_Size
+   *
+   *   FT_Init_FreeType
+   *   FT_Done_FreeType
+   *
+   *   FT_New_Face
+   *   FT_Done_Face
+   *   FT_Reference_Face
+   *   FT_New_Memory_Face
+   *   FT_Face_Properties
+   *   FT_Open_Face
+   *   FT_Open_Args
+   *   FT_Parameter
+   *   FT_Attach_File
+   *   FT_Attach_Stream
+   *
+   *   FT_Set_Char_Size
+   *   FT_Set_Pixel_Sizes
+   *   FT_Request_Size
+   *   FT_Select_Size
+   *   FT_Size_Request_Type
+   *   FT_Size_RequestRec
+   *   FT_Size_Request
+   *   FT_Set_Transform
+   *   FT_Load_Glyph
+   *   FT_Get_Char_Index
+   *   FT_Get_First_Char
+   *   FT_Get_Next_Char
+   *   FT_Get_Name_Index
+   *   FT_Load_Char
+   *
+   *   FT_OPEN_MEMORY
+   *   FT_OPEN_STREAM
+   *   FT_OPEN_PATHNAME
+   *   FT_OPEN_DRIVER
+   *   FT_OPEN_PARAMS
+   *
+   *   FT_LOAD_DEFAULT
+   *   FT_LOAD_RENDER
+   *   FT_LOAD_MONOCHROME
+   *   FT_LOAD_LINEAR_DESIGN
+   *   FT_LOAD_NO_SCALE
+   *   FT_LOAD_NO_HINTING
+   *   FT_LOAD_NO_BITMAP
+   *   FT_LOAD_NO_AUTOHINT
+   *   FT_LOAD_COLOR
+   *
+   *   FT_LOAD_VERTICAL_LAYOUT
+   *   FT_LOAD_IGNORE_TRANSFORM
+   *   FT_LOAD_FORCE_AUTOHINT
+   *   FT_LOAD_NO_RECURSE
+   *   FT_LOAD_PEDANTIC
+   *
+   *   FT_LOAD_TARGET_NORMAL
+   *   FT_LOAD_TARGET_LIGHT
+   *   FT_LOAD_TARGET_MONO
+   *   FT_LOAD_TARGET_LCD
+   *   FT_LOAD_TARGET_LCD_V
+   *
+   *   FT_LOAD_TARGET_MODE
+   *
+   *   FT_Render_Glyph
+   *   FT_Render_Mode
+   *   FT_Get_Kerning
+   *   FT_Kerning_Mode
+   *   FT_Get_Track_Kerning
+   *   FT_Get_Glyph_Name
+   *   FT_Get_Postscript_Name
+   *
+   *   FT_CharMapRec
+   *   FT_Select_Charmap
+   *   FT_Set_Charmap
+   *   FT_Get_Charmap_Index
+   *
+   *   FT_Get_FSType_Flags
+   *   FT_Get_SubGlyph_Info
+   *
+   *   FT_Face_Internal
+   *   FT_Size_Internal
+   *   FT_Slot_Internal
+   *
+   *   FT_FACE_FLAG_XXX
+   *   FT_STYLE_FLAG_XXX
+   *   FT_OPEN_XXX
+   *   FT_LOAD_XXX
+   *   FT_LOAD_TARGET_XXX
+   *   FT_SUBGLYPH_FLAG_XXX
+   *   FT_FSTYPE_XXX
+   *
+   *   FT_HAS_FAST_GLYPHS
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Glyph_Metrics                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model the metrics of a single glyph.  The values    */
-  /*    are expressed in 26.6 fractional pixel format; if the flag         */
-  /*    @FT_LOAD_NO_SCALE has been used while loading the glyph, values    */
-  /*    are expressed in font units instead.                               */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    width ::                                                           */
-  /*      The glyph's width.                                               */
-  /*                                                                       */
-  /*    height ::                                                          */
-  /*      The glyph's height.                                              */
-  /*                                                                       */
-  /*    horiBearingX ::                                                    */
-  /*      Left side bearing for horizontal layout.                         */
-  /*                                                                       */
-  /*    horiBearingY ::                                                    */
-  /*      Top side bearing for horizontal layout.                          */
-  /*                                                                       */
-  /*    horiAdvance ::                                                     */
-  /*      Advance width for horizontal layout.                             */
-  /*                                                                       */
-  /*    vertBearingX ::                                                    */
-  /*      Left side bearing for vertical layout.                           */
-  /*                                                                       */
-  /*    vertBearingY ::                                                    */
-  /*      Top side bearing for vertical layout.  Larger positive values    */
-  /*      mean further below the vertical glyph origin.                    */
-  /*                                                                       */
-  /*    vertAdvance ::                                                     */
-  /*      Advance height for vertical layout.  Positive values mean the    */
-  /*      glyph has a positive advance downward.                           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If not disabled with @FT_LOAD_NO_HINTING, the values represent     */
-  /*    dimensions of the hinted glyph (in case hinting is applicable).    */
-  /*                                                                       */
-  /*    Stroking a glyph with an outside border does not increase          */
-  /*    `horiAdvance' or `vertAdvance'; you have to manually adjust these  */
-  /*    values to account for the added width and height.                  */
-  /*                                                                       */
-  /*    FreeType doesn't use the `VORG' table data for CFF fonts because   */
-  /*    it doesn't have an interface to quickly retrieve the glyph height. */
-  /*    The y~coordinate of the vertical origin can be simply computed as  */
-  /*    `vertBearingY + height' after loading a glyph.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Glyph_Metrics
+   *
+   * @description:
+   *   A structure to model the metrics of a single glyph.  The values are
+   *   expressed in 26.6 fractional pixel format; if the flag
+   *   @FT_LOAD_NO_SCALE has been used while loading the glyph, values are
+   *   expressed in font units instead.
+   *
+   * @fields:
+   *   width ::
+   *     The glyph's width.
+   *
+   *   height ::
+   *     The glyph's height.
+   *
+   *   horiBearingX ::
+   *     Left side bearing for horizontal layout.
+   *
+   *   horiBearingY ::
+   *     Top side bearing for horizontal layout.
+   *
+   *   horiAdvance ::
+   *     Advance width for horizontal layout.
+   *
+   *   vertBearingX ::
+   *     Left side bearing for vertical layout.
+   *
+   *   vertBearingY ::
+   *     Top side bearing for vertical layout.  Larger positive values mean
+   *     further below the vertical glyph origin.
+   *
+   *   vertAdvance ::
+   *     Advance height for vertical layout.  Positive values mean the glyph
+   *     has a positive advance downward.
+   *
+   * @note:
+   *   If not disabled with @FT_LOAD_NO_HINTING, the values represent
+   *   dimensions of the hinted glyph (in case hinting is applicable).
+   *
+   *   Stroking a glyph with an outside border does not increase
+   *   `horiAdvance` or `vertAdvance`; you have to manually adjust these
+   *   values to account for the added width and height.
+   *
+   *   FreeType doesn't use the 'VORG' table data for CFF fonts because it
+   *   doesn't have an interface to quickly retrieve the glyph height.  The
+   *   y~coordinate of the vertical origin can be simply computed as
+   *   `vertBearingY + height` after loading a glyph.
+   */
   typedef struct  FT_Glyph_Metrics_
   {
     FT_Pos  width;
@@ -330,44 +329,45 @@ FT_BEGIN_HEADER
   } FT_Glyph_Metrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Bitmap_Size                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure models the metrics of a bitmap strike (i.e., a set  */
-  /*    of glyphs for a given point size and resolution) in a bitmap font. */
-  /*    It is used for the `available_sizes' field of @FT_Face.            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    height :: The vertical distance, in pixels, between two            */
-  /*              consecutive baselines.  It is always positive.           */
-  /*                                                                       */
-  /*    width  :: The average width, in pixels, of all glyphs in the       */
-  /*              strike.                                                  */
-  /*                                                                       */
-  /*    size   :: The nominal size of the strike in 26.6 fractional        */
-  /*              points.  This field is not very useful.                  */
-  /*                                                                       */
-  /*    x_ppem :: The horizontal ppem (nominal width) in 26.6 fractional   */
-  /*              pixels.                                                  */
-  /*                                                                       */
-  /*    y_ppem :: The vertical ppem (nominal height) in 26.6 fractional    */
-  /*              pixels.                                                  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Windows FNT:                                                       */
-  /*      The nominal size given in a FNT font is not reliable.  If the    */
-  /*      driver finds it incorrect, it sets `size' to some calculated     */
-  /*      values, and `x_ppem' and `y_ppem' to the pixel width and height  */
-  /*      given in the font, respectively.                                 */
-  /*                                                                       */
-  /*    TrueType embedded bitmaps:                                         */
-  /*      `size', `width', and `height' values are not contained in the    */
-  /*      bitmap strike itself.  They are computed from the global font    */
-  /*      parameters.                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Bitmap_Size
+   *
+   * @description:
+   *   This structure models the metrics of a bitmap strike (i.e., a set of
+   *   glyphs for a given point size and resolution) in a bitmap font.  It is
+   *   used for the `available_sizes` field of @FT_Face.
+   *
+   * @fields:
+   *   height ::
+   *     The vertical distance, in pixels, between two consecutive baselines.
+   *     It is always positive.
+   *
+   *   width ::
+   *     The average width, in pixels, of all glyphs in the strike.
+   *
+   *   size ::
+   *     The nominal size of the strike in 26.6 fractional points.  This
+   *     field is not very useful.
+   *
+   *   x_ppem ::
+   *     The horizontal ppem (nominal width) in 26.6 fractional pixels.
+   *
+   *   y_ppem ::
+   *     The vertical ppem (nominal height) in 26.6 fractional pixels.
+   *
+   * @note:
+   *   Windows FNT:
+   *     The nominal size given in a FNT font is not reliable.  If the driver
+   *     finds it incorrect, it sets `size` to some calculated values, and
+   *     `x_ppem` and `y_ppem` to the pixel width and height given in the
+   *     font, respectively.
+   *
+   *   TrueType embedded bitmaps:
+   *     `size`, `width`, and `height` values are not contained in the bitmap
+   *     strike itself.  They are computed from the global font parameters.
+   */
   typedef struct  FT_Bitmap_Size_
   {
     FT_Short  height;
@@ -389,225 +389,218 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Library                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a FreeType library instance.  Each `library' is        */
-  /*    completely independent from the others; it is the `root' of a set  */
-  /*    of objects like fonts, faces, sizes, etc.                          */
-  /*                                                                       */
-  /*    It also embeds a memory manager (see @FT_Memory), as well as a     */
-  /*    scan-line converter object (see @FT_Raster).                       */
-  /*                                                                       */
-  /*    In multi-threaded applications it is easiest to use one            */
-  /*    `FT_Library' object per thread.  In case this is too cumbersome,   */
-  /*    a single `FT_Library' object across threads is possible also       */
-  /*    (since FreeType version 2.5.6), as long as a mutex lock is used    */
-  /*    around @FT_New_Face and @FT_Done_Face.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Library objects are normally created by @FT_Init_FreeType, and     */
-  /*    destroyed with @FT_Done_FreeType.  If you need reference-counting  */
-  /*    (cf. @FT_Reference_Library), use @FT_New_Library and               */
-  /*    @FT_Done_Library.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Library
+   *
+   * @description:
+   *   A handle to a FreeType library instance.  Each 'library' is completely
+   *   independent from the others; it is the 'root' of a set of objects like
+   *   fonts, faces, sizes, etc.
+   *
+   *   It also embeds a memory manager (see @FT_Memory), as well as a
+   *   scan-line converter object (see @FT_Raster).
+   *
+   *   [Since 2.5.6] In multi-threaded applications it is easiest to use one
+   *   `FT_Library` object per thread.  In case this is too cumbersome, a
+   *   single `FT_Library` object across threads is possible also, as long as
+   *   a mutex lock is used around @FT_New_Face and @FT_Done_Face.
+   *
+   * @note:
+   *   Library objects are normally created by @FT_Init_FreeType, and
+   *   destroyed with @FT_Done_FreeType.  If you need reference-counting
+   *   (cf. @FT_Reference_Library), use @FT_New_Library and @FT_Done_Library.
+   */
   typedef struct FT_LibraryRec_  *FT_Library;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    module_management                                                  */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   module_management
+   *
+   */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Module                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a given FreeType module object.  A module can be a     */
-  /*    font driver, a renderer, or anything else that provides services   */
-  /*    to the former.                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Module
+   *
+   * @description:
+   *   A handle to a given FreeType module object.  A module can be a font
+   *   driver, a renderer, or anything else that provides services to the
+   *   former.
+   */
   typedef struct FT_ModuleRec_*  FT_Module;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Driver                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a given FreeType font driver object.  A font driver    */
-  /*    is a module capable of creating faces from font files.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Driver
+   *
+   * @description:
+   *   A handle to a given FreeType font driver object.  A font driver is a
+   *   module capable of creating faces from font files.
+   */
   typedef struct FT_DriverRec_*  FT_Driver;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Renderer                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a given FreeType renderer.  A renderer is a module in  */
-  /*    charge of converting a glyph's outline image to a bitmap.  It      */
-  /*    supports a single glyph image format, and one or more target       */
-  /*    surface depths.                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Renderer
+   *
+   * @description:
+   *   A handle to a given FreeType renderer.  A renderer is a module in
+   *   charge of converting a glyph's outline image to a bitmap.  It supports
+   *   a single glyph image format, and one or more target surface depths.
+   */
   typedef struct FT_RendererRec_*  FT_Renderer;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    base_interface                                                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   base_interface
+   *
+   */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Face                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a typographic face object.  A face object models a     */
-  /*    given typeface, in a given style.                                  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    A face object also owns a single @FT_GlyphSlot object, as well     */
-  /*    as one or more @FT_Size objects.                                   */
-  /*                                                                       */
-  /*    Use @FT_New_Face or @FT_Open_Face to create a new face object from */
-  /*    a given filepath or a custom input stream.                         */
-  /*                                                                       */
-  /*    Use @FT_Done_Face to destroy it (along with its slot and sizes).   */
-  /*                                                                       */
-  /*    An `FT_Face' object can only be safely used from one thread at a   */
-  /*    time.  Similarly, creation and destruction of `FT_Face' with the   */
-  /*    same @FT_Library object can only be done from one thread at a      */
-  /*    time.  On the other hand, functions like @FT_Load_Glyph and its    */
-  /*    siblings are thread-safe and do not need the lock to be held as    */
-  /*    long as the same `FT_Face' object is not used from multiple        */
-  /*    threads at the same time.                                          */
-  /*                                                                       */
-  /* <Also>                                                                */
-  /*    See @FT_FaceRec for the publicly accessible fields of a given face */
-  /*    object.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Face
+   *
+   * @description:
+   *   A handle to a typographic face object.  A face object models a given
+   *   typeface, in a given style.
+   *
+   * @note:
+   *   A face object also owns a single @FT_GlyphSlot object, as well as one
+   *   or more @FT_Size objects.
+   *
+   *   Use @FT_New_Face or @FT_Open_Face to create a new face object from a
+   *   given filepath or a custom input stream.
+   *
+   *   Use @FT_Done_Face to destroy it (along with its slot and sizes).
+   *
+   *   An `FT_Face` object can only be safely used from one thread at a time.
+   *   Similarly, creation and destruction of `FT_Face` with the same
+   *   @FT_Library object can only be done from one thread at a time.  On the
+   *   other hand, functions like @FT_Load_Glyph and its siblings are
+   *   thread-safe and do not need the lock to be held as long as the same
+   *   `FT_Face` object is not used from multiple threads at the same time.
+   *
+   * @also:
+   *   See @FT_FaceRec for the publicly accessible fields of a given face
+   *   object.
+   */
   typedef struct FT_FaceRec_*  FT_Face;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Size                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an object that models a face scaled to a given         */
-  /*    character size.                                                    */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    An @FT_Face has one _active_ @FT_Size object that is used by       */
-  /*    functions like @FT_Load_Glyph to determine the scaling             */
-  /*    transformation that in turn is used to load and hint glyphs and    */
-  /*    metrics.                                                           */
-  /*                                                                       */
-  /*    You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes,                */
-  /*    @FT_Request_Size or even @FT_Select_Size to change the content     */
-  /*    (i.e., the scaling values) of the active @FT_Size.                 */
-  /*                                                                       */
-  /*    You can use @FT_New_Size to create additional size objects for a   */
-  /*    given @FT_Face, but they won't be used by other functions until    */
-  /*    you activate it through @FT_Activate_Size.  Only one size can be   */
-  /*    activated at any given time per face.                              */
-  /*                                                                       */
-  /* <Also>                                                                */
-  /*    See @FT_SizeRec for the publicly accessible fields of a given size */
-  /*    object.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Size
+   *
+   * @description:
+   *   A handle to an object that models a face scaled to a given character
+   *   size.
+   *
+   * @note:
+   *   An @FT_Face has one _active_ @FT_Size object that is used by functions
+   *   like @FT_Load_Glyph to determine the scaling transformation that in
+   *   turn is used to load and hint glyphs and metrics.
+   *
+   *   You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, @FT_Request_Size
+   *   or even @FT_Select_Size to change the content (i.e., the scaling
+   *   values) of the active @FT_Size.
+   *
+   *   You can use @FT_New_Size to create additional size objects for a given
+   *   @FT_Face, but they won't be used by other functions until you activate
+   *   it through @FT_Activate_Size.  Only one size can be activated at any
+   *   given time per face.
+   *
+   * @also:
+   *   See @FT_SizeRec for the publicly accessible fields of a given size
+   *   object.
+   */
   typedef struct FT_SizeRec_*  FT_Size;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_GlyphSlot                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a given `glyph slot'.  A slot is a container that can  */
-  /*    hold any of the glyphs contained in its parent face.               */
-  /*                                                                       */
-  /*    In other words, each time you call @FT_Load_Glyph or               */
-  /*    @FT_Load_Char, the slot's content is erased by the new glyph data, */
-  /*    i.e., the glyph's metrics, its image (bitmap or outline), and      */
-  /*    other control information.                                         */
-  /*                                                                       */
-  /* <Also>                                                                */
-  /*    See @FT_GlyphSlotRec for the publicly accessible glyph fields.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_GlyphSlot
+   *
+   * @description:
+   *   A handle to a given 'glyph slot'.  A slot is a container that can hold
+   *   any of the glyphs contained in its parent face.
+   *
+   *   In other words, each time you call @FT_Load_Glyph or @FT_Load_Char,
+   *   the slot's content is erased by the new glyph data, i.e., the glyph's
+   *   metrics, its image (bitmap or outline), and other control information.
+   *
+   * @also:
+   *   See @FT_GlyphSlotRec for the publicly accessible glyph fields.
+   */
   typedef struct FT_GlyphSlotRec_*  FT_GlyphSlot;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_CharMap                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a character map (usually abbreviated to `charmap').  A */
-  /*    charmap is used to translate character codes in a given encoding   */
-  /*    into glyph indexes for its parent's face.  Some font formats may   */
-  /*    provide several charmaps per font.                                 */
-  /*                                                                       */
-  /*    Each face object owns zero or more charmaps, but only one of them  */
-  /*    can be `active', providing the data used by @FT_Get_Char_Index or  */
-  /*    @FT_Load_Char.                                                     */
-  /*                                                                       */
-  /*    The list of available charmaps in a face is available through the  */
-  /*    `face->num_charmaps' and `face->charmaps' fields of @FT_FaceRec.   */
-  /*                                                                       */
-  /*    The currently active charmap is available as `face->charmap'.      */
-  /*    You should call @FT_Set_Charmap to change it.                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    When a new face is created (either through @FT_New_Face or         */
-  /*    @FT_Open_Face), the library looks for a Unicode charmap within     */
-  /*    the list and automatically activates it.  If there is no Unicode   */
-  /*    charmap, FreeType doesn't set an `active' charmap.                 */
-  /*                                                                       */
-  /* <Also>                                                                */
-  /*    See @FT_CharMapRec for the publicly accessible fields of a given   */
-  /*    character map.                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_CharMap
+   *
+   * @description:
+   *   A handle to a character map (usually abbreviated to 'charmap').  A
+   *   charmap is used to translate character codes in a given encoding into
+   *   glyph indexes for its parent's face.  Some font formats may provide
+   *   several charmaps per font.
+   *
+   *   Each face object owns zero or more charmaps, but only one of them can
+   *   be 'active', providing the data used by @FT_Get_Char_Index or
+   *   @FT_Load_Char.
+   *
+   *   The list of available charmaps in a face is available through the
+   *   `face->num_charmaps` and `face->charmaps` fields of @FT_FaceRec.
+   *
+   *   The currently active charmap is available as `face->charmap`.  You
+   *   should call @FT_Set_Charmap to change it.
+   *
+   * @note:
+   *   When a new face is created (either through @FT_New_Face or
+   *   @FT_Open_Face), the library looks for a Unicode charmap within the
+   *   list and automatically activates it.  If there is no Unicode charmap,
+   *   FreeType doesn't set an 'active' charmap.
+   *
+   * @also:
+   *   See @FT_CharMapRec for the publicly accessible fields of a given
+   *   character map.
+   */
   typedef struct FT_CharMapRec_*  FT_CharMap;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_ENC_TAG                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This macro converts four-letter tags into an unsigned long.  It is */
-  /*    used to define `encoding' identifiers (see @FT_Encoding).          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Since many 16-bit compilers don't like 32-bit enumerations, you    */
-  /*    should redefine this macro in case of problems to something like   */
-  /*    this:                                                              */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      #define FT_ENC_TAG( value, a, b, c, d )  value                   */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    to get a simple enumeration without assigning special numbers.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_ENC_TAG
+   *
+   * @description:
+   *   This macro converts four-letter tags into an unsigned long.  It is
+   *   used to define 'encoding' identifiers (see @FT_Encoding).
+   *
+   * @note:
+   *   Since many 16-bit compilers don't like 32-bit enumerations, you should
+   *   redefine this macro in case of problems to something like this:
+   *
+   *   ```
+   *     #define FT_ENC_TAG( value, a, b, c, d )  value
+   *   ```
+   *
+   *   to get a simple enumeration without assigning special numbers.
+   */
 
 #ifndef FT_ENC_TAG
 #define FT_ENC_TAG( value, a, b, c, d )         \
@@ -619,150 +612,147 @@ FT_BEGIN_HEADER
 #endif /* FT_ENC_TAG */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Encoding                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration to specify character sets supported by charmaps.    */
-  /*    Used in the @FT_Select_Charmap API function.                       */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Despite the name, this enumeration lists specific character        */
-  /*    repertories (i.e., charsets), and not text encoding methods (e.g., */
-  /*    UTF-8, UTF-16, etc.).                                              */
-  /*                                                                       */
-  /*    Other encodings might be defined in the future.                    */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_ENCODING_NONE ::                                                */
-  /*      The encoding value~0 is reserved.                                */
-  /*                                                                       */
-  /*    FT_ENCODING_UNICODE ::                                             */
-  /*      The Unicode character set.  This value covers all versions of    */
-  /*      the Unicode repertoire, including ASCII and Latin-1.  Most fonts */
-  /*      include a Unicode charmap, but not all of them.                  */
-  /*                                                                       */
-  /*      For example, if you want to access Unicode value U+1F028 (and    */
-  /*      the font contains it), use value 0x1F028 as the input value for  */
-  /*      @FT_Get_Char_Index.                                              */
-  /*                                                                       */
-  /*    FT_ENCODING_MS_SYMBOL ::                                           */
-  /*      Microsoft Symbol encoding, used to encode mathematical symbols   */
-  /*      and wingdings.  For more information, see                        */
-  /*      `https://www.microsoft.com/typography/otspec/recom.htm',         */
-  /*      `http://www.kostis.net/charsets/symbol.htm', and                 */
-  /*      `http://www.kostis.net/charsets/wingding.htm'.                   */
-  /*                                                                       */
-  /*      This encoding uses character codes from the PUA (Private Unicode */
-  /*      Area) in the range U+F020-U+F0FF.                                */
-  /*                                                                       */
-  /*    FT_ENCODING_SJIS ::                                                */
-  /*      Shift JIS encoding for Japanese.  More info at                   */
-  /*      `https://en.wikipedia.org/wiki/Shift_JIS'.  See note on          */
-  /*      multi-byte encodings below.                                      */
-  /*                                                                       */
-  /*    FT_ENCODING_PRC ::                                                 */
-  /*      Corresponds to encoding systems mainly for Simplified Chinese as */
-  /*      used in People's Republic of China (PRC).  The encoding layout   */
-  /*      is based on GB~2312 and its supersets GBK and GB~18030.          */
-  /*                                                                       */
-  /*    FT_ENCODING_BIG5 ::                                                */
-  /*      Corresponds to an encoding system for Traditional Chinese as     */
-  /*      used in Taiwan and Hong Kong.                                    */
-  /*                                                                       */
-  /*    FT_ENCODING_WANSUNG ::                                             */
-  /*      Corresponds to the Korean encoding system known as Extended      */
-  /*      Wansung (MS Windows code page 949).                              */
-  /*      For more information see                                         */
-  /*      `https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit/bestfit949.txt'. */
-  /*                                                                       */
-  /*    FT_ENCODING_JOHAB ::                                               */
-  /*      The Korean standard character set (KS~C 5601-1992), which        */
-  /*      corresponds to MS Windows code page 1361.  This character set    */
-  /*      includes all possible Hangul character combinations.             */
-  /*                                                                       */
-  /*    FT_ENCODING_ADOBE_LATIN_1 ::                                       */
-  /*      Corresponds to a Latin-1 encoding as defined in a Type~1         */
-  /*      PostScript font.  It is limited to 256 character codes.          */
-  /*                                                                       */
-  /*    FT_ENCODING_ADOBE_STANDARD ::                                      */
-  /*      Adobe Standard encoding, as found in Type~1, CFF, and            */
-  /*      OpenType/CFF fonts.  It is limited to 256 character codes.       */
-  /*                                                                       */
-  /*    FT_ENCODING_ADOBE_EXPERT ::                                        */
-  /*      Adobe Expert encoding, as found in Type~1, CFF, and OpenType/CFF */
-  /*      fonts.  It is limited to 256 character codes.                    */
-  /*                                                                       */
-  /*    FT_ENCODING_ADOBE_CUSTOM ::                                        */
-  /*      Corresponds to a custom encoding, as found in Type~1, CFF, and   */
-  /*      OpenType/CFF fonts.  It is limited to 256 character codes.       */
-  /*                                                                       */
-  /*    FT_ENCODING_APPLE_ROMAN ::                                         */
-  /*      Apple roman encoding.  Many TrueType and OpenType fonts contain  */
-  /*      a charmap for this 8-bit encoding, since older versions of Mac   */
-  /*      OS are able to use it.                                           */
-  /*                                                                       */
-  /*    FT_ENCODING_OLD_LATIN_2 ::                                         */
-  /*      This value is deprecated and was neither used nor reported by    */
-  /*      FreeType.  Don't use or test for it.                             */
-  /*                                                                       */
-  /*    FT_ENCODING_MS_SJIS ::                                             */
-  /*      Same as FT_ENCODING_SJIS.  Deprecated.                           */
-  /*                                                                       */
-  /*    FT_ENCODING_MS_GB2312 ::                                           */
-  /*      Same as FT_ENCODING_PRC.  Deprecated.                            */
-  /*                                                                       */
-  /*    FT_ENCODING_MS_BIG5 ::                                             */
-  /*      Same as FT_ENCODING_BIG5.  Deprecated.                           */
-  /*                                                                       */
-  /*    FT_ENCODING_MS_WANSUNG ::                                          */
-  /*      Same as FT_ENCODING_WANSUNG.  Deprecated.                        */
-  /*                                                                       */
-  /*    FT_ENCODING_MS_JOHAB ::                                            */
-  /*      Same as FT_ENCODING_JOHAB.  Deprecated.                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    By default, FreeType enables a Unicode charmap and tags it with    */
-  /*    FT_ENCODING_UNICODE when it is either provided or can be generated */
-  /*    from PostScript glyph name dictionaries in the font file.          */
-  /*    All other encodings are considered legacy and tagged only if       */
-  /*    explicitly defined in the font file.  Otherwise, FT_ENCODING_NONE  */
-  /*    is used.                                                           */
-  /*                                                                       */
-  /*    FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap  */
-  /*    is neither Unicode nor ISO-8859-1 (otherwise it is set to          */
-  /*    FT_ENCODING_UNICODE).  Use @FT_Get_BDF_Charset_ID to find out      */
-  /*    which encoding is really present.  If, for example, the            */
-  /*    `cs_registry' field is `KOI8' and the `cs_encoding' field is `R',  */
-  /*    the font is encoded in KOI8-R.                                     */
-  /*                                                                       */
-  /*    FT_ENCODING_NONE is always set (with a single exception) by the    */
-  /*    winfonts driver.  Use @FT_Get_WinFNT_Header and examine the        */
-  /*    `charset' field of the @FT_WinFNT_HeaderRec structure to find out  */
-  /*    which encoding is really present.  For example,                    */
-  /*    @FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for       */
-  /*    Russian).                                                          */
-  /*                                                                       */
-  /*    FT_ENCODING_NONE is set if `platform_id' is @TT_PLATFORM_MACINTOSH */
-  /*    and `encoding_id' is not `TT_MAC_ID_ROMAN' (otherwise it is set to */
-  /*    FT_ENCODING_APPLE_ROMAN).                                          */
-  /*                                                                       */
-  /*    If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function       */
-  /*    @FT_Get_CMap_Language_ID to query the Mac language ID that may     */
-  /*    be needed to be able to distinguish Apple encoding variants.  See  */
-  /*                                                                       */
-  /*      https://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt */
-  /*                                                                       */
-  /*    to get an idea how to do that.  Basically, if the language ID      */
-  /*    is~0, don't use it, otherwise subtract 1 from the language ID.     */
-  /*    Then examine `encoding_id'.  If, for example, `encoding_id' is     */
-  /*    `TT_MAC_ID_ROMAN' and the language ID (minus~1) is                 */
-  /*    `TT_MAC_LANGID_GREEK', it is the Greek encoding, not Roman.        */
-  /*    `TT_MAC_ID_ARABIC' with `TT_MAC_LANGID_FARSI' means the Farsi      */
-  /*    variant the Arabic encoding.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Encoding
+   *
+   * @description:
+   *   An enumeration to specify character sets supported by charmaps.  Used
+   *   in the @FT_Select_Charmap API function.
+   *
+   * @note:
+   *   Despite the name, this enumeration lists specific character
+   *   repertories (i.e., charsets), and not text encoding methods (e.g.,
+   *   UTF-8, UTF-16, etc.).
+   *
+   *   Other encodings might be defined in the future.
+   *
+   * @values:
+   *   FT_ENCODING_NONE ::
+   *     The encoding value~0 is reserved for all formats except BDF, PCF,
+   *     and Windows FNT; see below for more information.
+   *
+   *   FT_ENCODING_UNICODE ::
+   *     The Unicode character set.  This value covers all versions of the
+   *     Unicode repertoire, including ASCII and Latin-1.  Most fonts include
+   *     a Unicode charmap, but not all of them.
+   *
+   *     For example, if you want to access Unicode value U+1F028 (and the
+   *     font contains it), use value 0x1F028 as the input value for
+   *     @FT_Get_Char_Index.
+   *
+   *   FT_ENCODING_MS_SYMBOL ::
+   *     Microsoft Symbol encoding, used to encode mathematical symbols and
+   *     wingdings.  For more information, see
+   *     'https://www.microsoft.com/typography/otspec/recom.htm',
+   *     'http://www.kostis.net/charsets/symbol.htm', and
+   *     'http://www.kostis.net/charsets/wingding.htm'.
+   *
+   *     This encoding uses character codes from the PUA (Private Unicode
+   *     Area) in the range U+F020-U+F0FF.
+   *
+   *   FT_ENCODING_SJIS ::
+   *     Shift JIS encoding for Japanese.  More info at
+   *     'https://en.wikipedia.org/wiki/Shift_JIS'.  See note on multi-byte
+   *     encodings below.
+   *
+   *   FT_ENCODING_PRC ::
+   *     Corresponds to encoding systems mainly for Simplified Chinese as
+   *     used in People's Republic of China (PRC).  The encoding layout is
+   *     based on GB~2312 and its supersets GBK and GB~18030.
+   *
+   *   FT_ENCODING_BIG5 ::
+   *     Corresponds to an encoding system for Traditional Chinese as used in
+   *     Taiwan and Hong Kong.
+   *
+   *   FT_ENCODING_WANSUNG ::
+   *     Corresponds to the Korean encoding system known as Extended Wansung
+   *     (MS Windows code page 949).  For more information see
+   *     'https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit/bestfit949.txt'.
+   *
+   *   FT_ENCODING_JOHAB ::
+   *     The Korean standard character set (KS~C 5601-1992), which
+   *     corresponds to MS Windows code page 1361.  This character set
+   *     includes all possible Hangul character combinations.
+   *
+   *   FT_ENCODING_ADOBE_LATIN_1 ::
+   *     Corresponds to a Latin-1 encoding as defined in a Type~1 PostScript
+   *     font.  It is limited to 256 character codes.
+   *
+   *   FT_ENCODING_ADOBE_STANDARD ::
+   *     Adobe Standard encoding, as found in Type~1, CFF, and OpenType/CFF
+   *     fonts.  It is limited to 256 character codes.
+   *
+   *   FT_ENCODING_ADOBE_EXPERT ::
+   *     Adobe Expert encoding, as found in Type~1, CFF, and OpenType/CFF
+   *     fonts.  It is limited to 256 character codes.
+   *
+   *   FT_ENCODING_ADOBE_CUSTOM ::
+   *     Corresponds to a custom encoding, as found in Type~1, CFF, and
+   *     OpenType/CFF fonts.  It is limited to 256 character codes.
+   *
+   *   FT_ENCODING_APPLE_ROMAN ::
+   *     Apple roman encoding.  Many TrueType and OpenType fonts contain a
+   *     charmap for this 8-bit encoding, since older versions of Mac OS are
+   *     able to use it.
+   *
+   *   FT_ENCODING_OLD_LATIN_2 ::
+   *     This value is deprecated and was neither used nor reported by
+   *     FreeType.  Don't use or test for it.
+   *
+   *   FT_ENCODING_MS_SJIS ::
+   *     Same as FT_ENCODING_SJIS.  Deprecated.
+   *
+   *   FT_ENCODING_MS_GB2312 ::
+   *     Same as FT_ENCODING_PRC.  Deprecated.
+   *
+   *   FT_ENCODING_MS_BIG5 ::
+   *     Same as FT_ENCODING_BIG5.  Deprecated.
+   *
+   *   FT_ENCODING_MS_WANSUNG ::
+   *     Same as FT_ENCODING_WANSUNG.  Deprecated.
+   *
+   *   FT_ENCODING_MS_JOHAB ::
+   *     Same as FT_ENCODING_JOHAB.  Deprecated.
+   *
+   * @note:
+   *   By default, FreeType enables a Unicode charmap and tags it with
+   *   `FT_ENCODING_UNICODE` when it is either provided or can be generated
+   *   from PostScript glyph name dictionaries in the font file.  All other
+   *   encodings are considered legacy and tagged only if explicitly defined
+   *   in the font file.  Otherwise, `FT_ENCODING_NONE` is used.
+   *
+   *   `FT_ENCODING_NONE` is set by the BDF and PCF drivers if the charmap is
+   *   neither Unicode nor ISO-8859-1 (otherwise it is set to
+   *   `FT_ENCODING_UNICODE`).  Use @FT_Get_BDF_Charset_ID to find out which
+   *   encoding is really present.  If, for example, the `cs_registry` field
+   *   is 'KOI8' and the `cs_encoding` field is 'R', the font is encoded in
+   *   KOI8-R.
+   *
+   *   `FT_ENCODING_NONE` is always set (with a single exception) by the
+   *   winfonts driver.  Use @FT_Get_WinFNT_Header and examine the `charset`
+   *   field of the @FT_WinFNT_HeaderRec structure to find out which encoding
+   *   is really present.  For example, @FT_WinFNT_ID_CP1251 (204) means
+   *   Windows code page 1251 (for Russian).
+   *
+   *   `FT_ENCODING_NONE` is set if `platform_id` is @TT_PLATFORM_MACINTOSH
+   *   and `encoding_id` is not `TT_MAC_ID_ROMAN` (otherwise it is set to
+   *   `FT_ENCODING_APPLE_ROMAN`).
+   *
+   *   If `platform_id` is @TT_PLATFORM_MACINTOSH, use the function
+   *   @FT_Get_CMap_Language_ID to query the Mac language ID that may be
+   *   needed to be able to distinguish Apple encoding variants.  See
+   *
+   *     https://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt
+   *
+   *   to get an idea how to do that.  Basically, if the language ID is~0,
+   *   don't use it, otherwise subtract 1 from the language ID.  Then examine
+   *   `encoding_id`.  If, for example, `encoding_id` is `TT_MAC_ID_ROMAN`
+   *   and the language ID (minus~1) is `TT_MAC_LANGID_GREEK`, it is the
+   *   Greek encoding, not Roman.  `TT_MAC_ID_ARABIC` with
+   *   `TT_MAC_LANGID_FARSI` means the Farsi variant the Arabic encoding.
+   */
   typedef enum  FT_Encoding_
   {
     FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ),
@@ -796,7 +786,7 @@ FT_BEGIN_HEADER
   } FT_Encoding;
 
 
-  /* these constants are deprecated; use the corresponding `FT_Encoding' */
+  /* these constants are deprecated; use the corresponding `FT_Encoding` */
   /* values instead                                                      */
 #define ft_encoding_none            FT_ENCODING_NONE
 #define ft_encoding_unicode         FT_ENCODING_UNICODE
@@ -815,29 +805,31 @@ FT_BEGIN_HEADER
 #define ft_encoding_apple_roman     FT_ENCODING_APPLE_ROMAN
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_CharMapRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The base charmap structure.                                        */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    face        :: A handle to the parent face object.                 */
-  /*                                                                       */
-  /*    encoding    :: An @FT_Encoding tag identifying the charmap.  Use   */
-  /*                   this with @FT_Select_Charmap.                       */
-  /*                                                                       */
-  /*    platform_id :: An ID number describing the platform for the        */
-  /*                   following encoding ID.  This comes directly from    */
-  /*                   the TrueType specification and gets emulated for    */
-  /*                   other formats.                                      */
-  /*                                                                       */
-  /*    encoding_id :: A platform specific encoding number.  This also     */
-  /*                   comes from the TrueType specification and gets      */
-  /*                   emulated similarly.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_CharMapRec
+   *
+   * @description:
+   *   The base charmap structure.
+   *
+   * @fields:
+   *   face ::
+   *     A handle to the parent face object.
+   *
+   *   encoding ::
+   *     An @FT_Encoding tag identifying the charmap.  Use this with
+   *     @FT_Select_Charmap.
+   *
+   *   platform_id ::
+   *     An ID number describing the platform for the following encoding ID.
+   *     This comes directly from the TrueType specification and gets
+   *     emulated for other formats.
+   *
+   *   encoding_id ::
+   *     A platform-specific encoding number.  This also comes from the
+   *     TrueType specification and gets emulated similarly.
+   */
   typedef struct  FT_CharMapRec_
   {
     FT_Face      face;
@@ -857,215 +849,195 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Face_Internal                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An opaque handle to an `FT_Face_InternalRec' structure that models */
-  /*    the private data of a given @FT_Face object.                       */
-  /*                                                                       */
-  /*    This structure might change between releases of FreeType~2 and is  */
-  /*    not generally available to client applications.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Face_Internal
+   *
+   * @description:
+   *   An opaque handle to an `FT_Face_InternalRec` structure that models the
+   *   private data of a given @FT_Face object.
+   *
+   *   This structure might change between releases of FreeType~2 and is not
+   *   generally available to client applications.
+   */
   typedef struct FT_Face_InternalRec_*  FT_Face_Internal;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_FaceRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FreeType root face class structure.  A face object models a        */
-  /*    typeface in a font file.                                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_faces           :: The number of faces in the font file.  Some */
-  /*                           font formats can have multiple faces in     */
-  /*                           a single font file.                         */
-  /*                                                                       */
-  /*    face_index          :: This field holds two different values.      */
-  /*                           Bits 0-15 are the index of the face in the  */
-  /*                           font file (starting with value~0).  They    */
-  /*                           are set to~0 if there is only one face in   */
-  /*                           the font file.                              */
-  /*                                                                       */
-  /*                           [Since 2.6.1] Bits 16-30 are relevant to GX */
-  /*                           and OpenType variation fonts only, holding  */
-  /*                           the named instance index for the current    */
-  /*                           face index (starting with value~1; value~0  */
-  /*                           indicates font access without a named       */
-  /*                           instance).  For non-variation fonts, bits   */
-  /*                           16-30 are ignored.  If we have the third    */
-  /*                           named instance of face~4, say, `face_index' */
-  /*                           is set to 0x00030004.                       */
-  /*                                                                       */
-  /*                           Bit 31 is always zero (this is,             */
-  /*                           `face_index' is always a positive value).   */
-  /*                                                                       */
-  /*                           [Since 2.9] Changing the design coordinates */
-  /*                           with @FT_Set_Var_Design_Coordinates or      */
-  /*                           @FT_Set_Var_Blend_Coordinates does not      */
-  /*                           influence the named instance index value    */
-  /*                           (only @FT_Set_Named_Instance does that).    */
-  /*                                                                       */
-  /*    face_flags          :: A set of bit flags that give important      */
-  /*                           information about the face; see             */
-  /*                           @FT_FACE_FLAG_XXX for the details.          */
-  /*                                                                       */
-  /*    style_flags         :: The lower 16~bits contain a set of bit      */
-  /*                           flags indicating the style of the face; see */
-  /*                           @FT_STYLE_FLAG_XXX for the details.         */
-  /*                                                                       */
-  /*                           [Since 2.6.1] Bits 16-30 hold the number    */
-  /*                           of named instances available for the        */
-  /*                           current face if we have a GX or OpenType    */
-  /*                           variation (sub)font.  Bit 31 is always zero */
-  /*                           (this is, `style_flags' is always a         */
-  /*                           positive value).  Note that a variation     */
-  /*                           font has always at least one named          */
-  /*                           instance, namely the default instance.      */
-  /*                                                                       */
-  /*    num_glyphs          :: The number of glyphs in the face.  If the   */
-  /*                           face is scalable and has sbits (see         */
-  /*                           `num_fixed_sizes'), it is set to the number */
-  /*                           of outline glyphs.                          */
-  /*                                                                       */
-  /*                           For CID-keyed fonts (not in an SFNT         */
-  /*                           wrapper) this value gives the highest CID   */
-  /*                           used in the font.                           */
-  /*                                                                       */
-  /*    family_name         :: The face's family name.  This is an ASCII   */
-  /*                           string, usually in English, that describes  */
-  /*                           the typeface's family (like `Times New      */
-  /*                           Roman', `Bodoni', `Garamond', etc).  This   */
-  /*                           is a least common denominator used to list  */
-  /*                           fonts.  Some formats (TrueType & OpenType)  */
-  /*                           provide localized and Unicode versions of   */
-  /*                           this string.  Applications should use the   */
-  /*                           format specific interface to access them.   */
-  /*                           Can be NULL (e.g., in fonts embedded in a   */
-  /*                           PDF file).                                  */
-  /*                                                                       */
-  /*                           In case the font doesn't provide a specific */
-  /*                           family name entry, FreeType tries to        */
-  /*                           synthesize one, deriving it from other name */
-  /*                           entries.                                    */
-  /*                                                                       */
-  /*    style_name          :: The face's style name.  This is an ASCII    */
-  /*                           string, usually in English, that describes  */
-  /*                           the typeface's style (like `Italic',        */
-  /*                           `Bold', `Condensed', etc).  Not all font    */
-  /*                           formats provide a style name, so this field */
-  /*                           is optional, and can be set to NULL.  As    */
-  /*                           for `family_name', some formats provide     */
-  /*                           localized and Unicode versions of this      */
-  /*                           string.  Applications should use the format */
-  /*                           specific interface to access them.          */
-  /*                                                                       */
-  /*    num_fixed_sizes     :: The number of bitmap strikes in the face.   */
-  /*                           Even if the face is scalable, there might   */
-  /*                           still be bitmap strikes, which are called   */
-  /*                           `sbits' in that case.                       */
-  /*                                                                       */
-  /*    available_sizes     :: An array of @FT_Bitmap_Size for all bitmap  */
-  /*                           strikes in the face.  It is set to NULL if  */
-  /*                           there is no bitmap strike.                  */
-  /*                                                                       */
-  /*                           Note that FreeType tries to sanitize the    */
-  /*                           strike data since they are sometimes sloppy */
-  /*                           or incorrect, but this can easily fail.     */
-  /*                                                                       */
-  /*    num_charmaps        :: The number of charmaps in the face.         */
-  /*                                                                       */
-  /*    charmaps            :: An array of the charmaps of the face.       */
-  /*                                                                       */
-  /*    generic             :: A field reserved for client uses.  See the  */
-  /*                           @FT_Generic type description.               */
-  /*                                                                       */
-  /*    bbox                :: The font bounding box.  Coordinates are     */
-  /*                           expressed in font units (see                */
-  /*                           `units_per_EM').  The box is large enough   */
-  /*                           to contain any glyph from the font.  Thus,  */
-  /*                           `bbox.yMax' can be seen as the `maximum     */
-  /*                           ascender', and `bbox.yMin' as the `minimum  */
-  /*                           descender'.  Only relevant for scalable     */
-  /*                           formats.                                    */
-  /*                                                                       */
-  /*                           Note that the bounding box might be off by  */
-  /*                           (at least) one pixel for hinted fonts.  See */
-  /*                           @FT_Size_Metrics for further discussion.    */
-  /*                                                                       */
-  /*    units_per_EM        :: The number of font units per EM square for  */
-  /*                           this face.  This is typically 2048 for      */
-  /*                           TrueType fonts, and 1000 for Type~1 fonts.  */
-  /*                           Only relevant for scalable formats.         */
-  /*                                                                       */
-  /*    ascender            :: The typographic ascender of the face,       */
-  /*                           expressed in font units.  For font formats  */
-  /*                           not having this information, it is set to   */
-  /*                           `bbox.yMax'.  Only relevant for scalable    */
-  /*                           formats.                                    */
-  /*                                                                       */
-  /*    descender           :: The typographic descender of the face,      */
-  /*                           expressed in font units.  For font formats  */
-  /*                           not having this information, it is set to   */
-  /*                           `bbox.yMin'.  Note that this field is       */
-  /*                           negative for values below the baseline.     */
-  /*                           Only relevant for scalable formats.         */
-  /*                                                                       */
-  /*    height              :: This value is the vertical distance         */
-  /*                           between two consecutive baselines,          */
-  /*                           expressed in font units.  It is always      */
-  /*                           positive.  Only relevant for scalable       */
-  /*                           formats.                                    */
-  /*                                                                       */
-  /*                           If you want the global glyph height, use    */
-  /*                           `ascender - descender'.                     */
-  /*                                                                       */
-  /*    max_advance_width   :: The maximum advance width, in font units,   */
-  /*                           for all glyphs in this face.  This can be   */
-  /*                           used to make word wrapping computations     */
-  /*                           faster.  Only relevant for scalable         */
-  /*                           formats.                                    */
-  /*                                                                       */
-  /*    max_advance_height  :: The maximum advance height, in font units,  */
-  /*                           for all glyphs in this face.  This is only  */
-  /*                           relevant for vertical layouts, and is set   */
-  /*                           to `height' for fonts that do not provide   */
-  /*                           vertical metrics.  Only relevant for        */
-  /*                           scalable formats.                           */
-  /*                                                                       */
-  /*    underline_position  :: The position, in font units, of the         */
-  /*                           underline line for this face.  It is the    */
-  /*                           center of the underlining stem.  Only       */
-  /*                           relevant for scalable formats.              */
-  /*                                                                       */
-  /*    underline_thickness :: The thickness, in font units, of the        */
-  /*                           underline for this face.  Only relevant for */
-  /*                           scalable formats.                           */
-  /*                                                                       */
-  /*    glyph               :: The face's associated glyph slot(s).        */
-  /*                                                                       */
-  /*    size                :: The current active size for this face.      */
-  /*                                                                       */
-  /*    charmap             :: The current active charmap for this face.   */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Fields may be changed after a call to @FT_Attach_File or           */
-  /*    @FT_Attach_Stream.                                                 */
-  /*                                                                       */
-  /*    For an OpenType variation font, the values of the following fields */
-  /*    can change after a call to @FT_Set_Var_Design_Coordinates (and     */
-  /*    friends) if the font contains an `MVAR' table: `ascender',         */
-  /*    `descender', `height', `underline_position', and                   */
-  /*    `underline_thickness'.                                             */
-  /*                                                                       */
-  /*    Especially for TrueType fonts see also the documentation for       */
-  /*    @FT_Size_Metrics.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_FaceRec
+   *
+   * @description:
+   *   FreeType root face class structure.  A face object models a typeface
+   *   in a font file.
+   *
+   * @fields:
+   *   num_faces ::
+   *     The number of faces in the font file.  Some font formats can have
+   *     multiple faces in a single font file.
+   *
+   *   face_index ::
+   *     This field holds two different values.  Bits 0-15 are the index of
+   *     the face in the font file (starting with value~0).  They are set
+   *     to~0 if there is only one face in the font file.
+   *
+   *     [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation
+   *     fonts only, holding the named instance index for the current face
+   *     index (starting with value~1; value~0 indicates font access without
+   *     a named instance).  For non-variation fonts, bits 16-30 are ignored.
+   *     If we have the third named instance of face~4, say, `face_index` is
+   *     set to 0x00030004.
+   *
+   *     Bit 31 is always zero (this is, `face_index` is always a positive
+   *     value).
+   *
+   *     [Since 2.9] Changing the design coordinates with
+   *     @FT_Set_Var_Design_Coordinates or @FT_Set_Var_Blend_Coordinates does
+   *     not influence the named instance index value (only
+   *     @FT_Set_Named_Instance does that).
+   *
+   *   face_flags ::
+   *     A set of bit flags that give important information about the face;
+   *     see @FT_FACE_FLAG_XXX for the details.
+   *
+   *   style_flags ::
+   *     The lower 16~bits contain a set of bit flags indicating the style of
+   *     the face; see @FT_STYLE_FLAG_XXX for the details.
+   *
+   *     [Since 2.6.1] Bits 16-30 hold the number of named instances
+   *     available for the current face if we have a GX or OpenType variation
+   *     (sub)font.  Bit 31 is always zero (this is, `style_flags` is always
+   *     a positive value).  Note that a variation font has always at least
+   *     one named instance, namely the default instance.
+   *
+   *   num_glyphs ::
+   *     The number of glyphs in the face.  If the face is scalable and has
+   *     sbits (see `num_fixed_sizes`), it is set to the number of outline
+   *     glyphs.
+   *
+   *     For CID-keyed fonts (not in an SFNT wrapper) this value gives the
+   *     highest CID used in the font.
+   *
+   *   family_name ::
+   *     The face's family name.  This is an ASCII string, usually in
+   *     English, that describes the typeface's family (like 'Times New
+   *     Roman', 'Bodoni', 'Garamond', etc).  This is a least common
+   *     denominator used to list fonts.  Some formats (TrueType & OpenType)
+   *     provide localized and Unicode versions of this string.  Applications
+   *     should use the format-specific interface to access them.  Can be
+   *     `NULL` (e.g., in fonts embedded in a PDF file).
+   *
+   *     In case the font doesn't provide a specific family name entry,
+   *     FreeType tries to synthesize one, deriving it from other name
+   *     entries.
+   *
+   *   style_name ::
+   *     The face's style name.  This is an ASCII string, usually in English,
+   *     that describes the typeface's style (like 'Italic', 'Bold',
+   *     'Condensed', etc).  Not all font formats provide a style name, so
+   *     this field is optional, and can be set to `NULL`.  As for
+   *     `family_name`, some formats provide localized and Unicode versions
+   *     of this string.  Applications should use the format-specific
+   *     interface to access them.
+   *
+   *   num_fixed_sizes ::
+   *     The number of bitmap strikes in the face.  Even if the face is
+   *     scalable, there might still be bitmap strikes, which are called
+   *     'sbits' in that case.
+   *
+   *   available_sizes ::
+   *     An array of @FT_Bitmap_Size for all bitmap strikes in the face.  It
+   *     is set to `NULL` if there is no bitmap strike.
+   *
+   *     Note that FreeType tries to sanitize the strike data since they are
+   *     sometimes sloppy or incorrect, but this can easily fail.
+   *
+   *   num_charmaps ::
+   *     The number of charmaps in the face.
+   *
+   *   charmaps ::
+   *     An array of the charmaps of the face.
+   *
+   *   generic ::
+   *     A field reserved for client uses.  See the @FT_Generic type
+   *     description.
+   *
+   *   bbox ::
+   *     The font bounding box.  Coordinates are expressed in font units (see
+   *     `units_per_EM`).  The box is large enough to contain any glyph from
+   *     the font.  Thus, `bbox.yMax` can be seen as the 'maximum ascender',
+   *     and `bbox.yMin` as the 'minimum descender'.  Only relevant for
+   *     scalable formats.
+   *
+   *     Note that the bounding box might be off by (at least) one pixel for
+   *     hinted fonts.  See @FT_Size_Metrics for further discussion.
+   *
+   *   units_per_EM ::
+   *     The number of font units per EM square for this face.  This is
+   *     typically 2048 for TrueType fonts, and 1000 for Type~1 fonts.  Only
+   *     relevant for scalable formats.
+   *
+   *   ascender ::
+   *     The typographic ascender of the face, expressed in font units.  For
+   *     font formats not having this information, it is set to `bbox.yMax`.
+   *     Only relevant for scalable formats.
+   *
+   *   descender ::
+   *     The typographic descender of the face, expressed in font units.  For
+   *     font formats not having this information, it is set to `bbox.yMin`.
+   *     Note that this field is negative for values below the baseline.
+   *     Only relevant for scalable formats.
+   *
+   *   height ::
+   *     This value is the vertical distance between two consecutive
+   *     baselines, expressed in font units.  It is always positive.  Only
+   *     relevant for scalable formats.
+   *
+   *     If you want the global glyph height, use `ascender - descender`.
+   *
+   *   max_advance_width ::
+   *     The maximum advance width, in font units, for all glyphs in this
+   *     face.  This can be used to make word wrapping computations faster.
+   *     Only relevant for scalable formats.
+   *
+   *   max_advance_height ::
+   *     The maximum advance height, in font units, for all glyphs in this
+   *     face.  This is only relevant for vertical layouts, and is set to
+   *     `height` for fonts that do not provide vertical metrics.  Only
+   *     relevant for scalable formats.
+   *
+   *   underline_position ::
+   *     The position, in font units, of the underline line for this face.
+   *     It is the center of the underlining stem.  Only relevant for
+   *     scalable formats.
+   *
+   *   underline_thickness ::
+   *     The thickness, in font units, of the underline for this face.  Only
+   *     relevant for scalable formats.
+   *
+   *   glyph ::
+   *     The face's associated glyph slot(s).
+   *
+   *   size ::
+   *     The current active size for this face.
+   *
+   *   charmap ::
+   *     The current active charmap for this face.
+   *
+   * @note:
+   *   Fields may be changed after a call to @FT_Attach_File or
+   *   @FT_Attach_Stream.
+   *
+   *   For an OpenType variation font, the values of the following fields can
+   *   change after a call to @FT_Set_Var_Design_Coordinates (and friends) if
+   *   the font contains an 'MVAR' table: `ascender`, `descender`, `height`,
+   *   `underline_position`, and `underline_thickness`.
+   *
+   *   Especially for TrueType fonts see also the documentation for
+   *   @FT_Size_Metrics.
+   */
   typedef struct  FT_FaceRec_
   {
     FT_Long           num_faces;
@@ -1087,7 +1059,7 @@ FT_BEGIN_HEADER
 
     FT_Generic        generic;
 
-    /*# The following member variables (down to `underline_thickness') */
+    /*# The following member variables (down to `underline_thickness`) */
     /*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size    */
     /*# for bitmap fonts.                                              */
     FT_BBox           bbox;
@@ -1125,117 +1097,116 @@ FT_BEGIN_HEADER
   } FT_FaceRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_FACE_FLAG_XXX                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit flags used in the `face_flags' field of the          */
-  /*    @FT_FaceRec structure.  They inform client applications of         */
-  /*    properties of the corresponding face.                              */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_FACE_FLAG_SCALABLE ::                                           */
-  /*      The face contains outline glyphs.  Note that a face can contain  */
-  /*      bitmap strikes also, i.e., a face can have both this flag and    */
-  /*      @FT_FACE_FLAG_FIXED_SIZES set.                                   */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_FIXED_SIZES ::                                        */
-  /*      The face contains bitmap strikes.  See also the                  */
-  /*      `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec.   */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_FIXED_WIDTH ::                                        */
-  /*      The face contains fixed-width characters (like Courier, Lucida,  */
-  /*      MonoType, etc.).                                                 */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_SFNT ::                                               */
-  /*      The face uses the SFNT storage scheme.  For now, this means      */
-  /*      TrueType and OpenType.                                           */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_HORIZONTAL ::                                         */
-  /*      The face contains horizontal glyph metrics.  This should be set  */
-  /*      for all common formats.                                          */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_VERTICAL ::                                           */
-  /*      The face contains vertical glyph metrics.  This is only          */
-  /*      available in some formats, not all of them.                      */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_KERNING ::                                            */
-  /*      The face contains kerning information.  If set, the kerning      */
-  /*      distance can be retrieved using the function @FT_Get_Kerning.    */
-  /*      Otherwise the function always return the vector (0,0).  Note     */
-  /*      that FreeType doesn't handle kerning data from the SFNT `GPOS'   */
-  /*      table (as present in many OpenType fonts).                       */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_FAST_GLYPHS ::                                        */
-  /*      THIS FLAG IS DEPRECATED.  DO NOT USE OR TEST IT.                 */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_MULTIPLE_MASTERS ::                                   */
-  /*      The face contains multiple masters and is capable of             */
-  /*      interpolating between them.  Supported formats are Adobe MM,     */
-  /*      TrueType GX, and OpenType variation fonts.                       */
-  /*                                                                       */
-  /*      See section @multiple_masters for API details.                   */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_GLYPH_NAMES ::                                        */
-  /*      The face contains glyph names, which can be retrieved using      */
-  /*      @FT_Get_Glyph_Name.  Note that some TrueType fonts contain       */
-  /*      broken glyph name tables.  Use the function                      */
-  /*      @FT_Has_PS_Glyph_Names when needed.                              */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_EXTERNAL_STREAM ::                                    */
-  /*      Used internally by FreeType to indicate that a face's stream was */
-  /*      provided by the client application and should not be destroyed   */
-  /*      when @FT_Done_Face is called.  Don't read or test this flag.     */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_HINTER ::                                             */
-  /*      The font driver has a hinting machine of its own.  For example,  */
-  /*      with TrueType fonts, it makes sense to use data from the SFNT    */
-  /*      `gasp' table only if the native TrueType hinting engine (with    */
-  /*      the bytecode interpreter) is available and active.               */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_CID_KEYED ::                                          */
-  /*      The face is CID-keyed.  In that case, the face is not accessed   */
-  /*      by glyph indices but by CID values.  For subsetted CID-keyed     */
-  /*      fonts this has the consequence that not all index values are a   */
-  /*      valid argument to @FT_Load_Glyph.  Only the CID values for which */
-  /*      corresponding glyphs in the subsetted font exist make            */
-  /*      `FT_Load_Glyph' return successfully; in all other cases you get  */
-  /*      an `FT_Err_Invalid_Argument' error.                              */
-  /*                                                                       */
-  /*      Note that CID-keyed fonts that are in an SFNT wrapper (this is,  */
-  /*      all OpenType/CFF fonts) don't have this flag set since the       */
-  /*      glyphs are accessed in the normal way (using contiguous          */
-  /*      indices); the `CID-ness' isn't visible to the application.       */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_TRICKY ::                                             */
-  /*      The face is `tricky', this is, it always needs the font format's */
-  /*      native hinting engine to get a reasonable result.  A typical     */
-  /*      example is the old Chinese font `mingli.ttf' (but not            */
-  /*      `mingliu.ttc') that uses TrueType bytecode instructions to move  */
-  /*      and scale all of its subglyphs.                                  */
-  /*                                                                       */
-  /*      It is not possible to auto-hint such fonts using                 */
-  /*      @FT_LOAD_FORCE_AUTOHINT; it will also ignore                     */
-  /*      @FT_LOAD_NO_HINTING.  You have to set both @FT_LOAD_NO_HINTING   */
-  /*      and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */
-  /*      probably never want this except for demonstration purposes.      */
-  /*                                                                       */
-  /*      Currently, there are about a dozen TrueType fonts in the list of */
-  /*      tricky fonts; they are hard-coded in file `ttobjs.c'.            */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_COLOR ::                                              */
-  /*      [Since 2.5.1] The face has color glyph tables.  To access color  */
-  /*      glyphs use @FT_LOAD_COLOR.                                       */
-  /*                                                                       */
-  /*    FT_FACE_FLAG_VARIATION ::                                          */
-  /*      [Since 2.9] Set if the current face (or named instance) has been */
-  /*      altered with @FT_Set_MM_Design_Coordinates,                      */
-  /*      @FT_Set_Var_Design_Coordinates, or                               */
-  /*      @FT_Set_Var_Blend_Coordinates.  This flag is unset by a call to  */
-  /*      @FT_Set_Named_Instance.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_FACE_FLAG_XXX
+   *
+   * @description:
+   *   A list of bit flags used in the `face_flags` field of the @FT_FaceRec
+   *   structure.  They inform client applications of properties of the
+   *   corresponding face.
+   *
+   * @values:
+   *   FT_FACE_FLAG_SCALABLE ::
+   *     The face contains outline glyphs.  Note that a face can contain
+   *     bitmap strikes also, i.e., a face can have both this flag and
+   *     @FT_FACE_FLAG_FIXED_SIZES set.
+   *
+   *   FT_FACE_FLAG_FIXED_SIZES ::
+   *     The face contains bitmap strikes.  See also the `num_fixed_sizes`
+   *     and `available_sizes` fields of @FT_FaceRec.
+   *
+   *   FT_FACE_FLAG_FIXED_WIDTH ::
+   *     The face contains fixed-width characters (like Courier, Lucida,
+   *     MonoType, etc.).
+   *
+   *   FT_FACE_FLAG_SFNT ::
+   *     The face uses the SFNT storage scheme.  For now, this means TrueType
+   *     and OpenType.
+   *
+   *   FT_FACE_FLAG_HORIZONTAL ::
+   *     The face contains horizontal glyph metrics.  This should be set for
+   *     all common formats.
+   *
+   *   FT_FACE_FLAG_VERTICAL ::
+   *     The face contains vertical glyph metrics.  This is only available in
+   *     some formats, not all of them.
+   *
+   *   FT_FACE_FLAG_KERNING ::
+   *     The face contains kerning information.  If set, the kerning distance
+   *     can be retrieved using the function @FT_Get_Kerning.  Otherwise the
+   *     function always return the vector (0,0).  Note that FreeType doesn't
+   *     handle kerning data from the SFNT 'GPOS' table (as present in many
+   *     OpenType fonts).
+   *
+   *   FT_FACE_FLAG_FAST_GLYPHS ::
+   *     THIS FLAG IS DEPRECATED.  DO NOT USE OR TEST IT.
+   *
+   *   FT_FACE_FLAG_MULTIPLE_MASTERS ::
+   *     The face contains multiple masters and is capable of interpolating
+   *     between them.  Supported formats are Adobe MM, TrueType GX, and
+   *     OpenType variation fonts.
+   *
+   *     See section @multiple_masters for API details.
+   *
+   *   FT_FACE_FLAG_GLYPH_NAMES ::
+   *     The face contains glyph names, which can be retrieved using
+   *     @FT_Get_Glyph_Name.  Note that some TrueType fonts contain broken
+   *     glyph name tables.  Use the function @FT_Has_PS_Glyph_Names when
+   *     needed.
+   *
+   *   FT_FACE_FLAG_EXTERNAL_STREAM ::
+   *     Used internally by FreeType to indicate that a face's stream was
+   *     provided by the client application and should not be destroyed when
+   *     @FT_Done_Face is called.  Don't read or test this flag.
+   *
+   *   FT_FACE_FLAG_HINTER ::
+   *     The font driver has a hinting machine of its own.  For example, with
+   *     TrueType fonts, it makes sense to use data from the SFNT 'gasp'
+   *     table only if the native TrueType hinting engine (with the bytecode
+   *     interpreter) is available and active.
+   *
+   *   FT_FACE_FLAG_CID_KEYED ::
+   *     The face is CID-keyed.  In that case, the face is not accessed by
+   *     glyph indices but by CID values.  For subsetted CID-keyed fonts this
+   *     has the consequence that not all index values are a valid argument
+   *     to @FT_Load_Glyph.  Only the CID values for which corresponding
+   *     glyphs in the subsetted font exist make `FT_Load_Glyph` return
+   *     successfully; in all other cases you get an
+   *     `FT_Err_Invalid_Argument` error.
+   *
+   *     Note that CID-keyed fonts that are in an SFNT wrapper (this is, all
+   *     OpenType/CFF fonts) don't have this flag set since the glyphs are
+   *     accessed in the normal way (using contiguous indices); the
+   *     'CID-ness' isn't visible to the application.
+   *
+   *   FT_FACE_FLAG_TRICKY ::
+   *     The face is 'tricky', this is, it always needs the font format's
+   *     native hinting engine to get a reasonable result.  A typical example
+   *     is the old Chinese font `mingli.ttf` (but not `mingliu.ttc`) that
+   *     uses TrueType bytecode instructions to move and scale all of its
+   *     subglyphs.
+   *
+   *     It is not possible to auto-hint such fonts using
+   *     @FT_LOAD_FORCE_AUTOHINT; it will also ignore @FT_LOAD_NO_HINTING.
+   *     You have to set both @FT_LOAD_NO_HINTING and @FT_LOAD_NO_AUTOHINT to
+   *     really disable hinting; however, you probably never want this except
+   *     for demonstration purposes.
+   *
+   *     Currently, there are about a dozen TrueType fonts in the list of
+   *     tricky fonts; they are hard-coded in file `ttobjs.c`.
+   *
+   *   FT_FACE_FLAG_COLOR ::
+   *     [Since 2.5.1] The face has color glyph tables.  See @FT_LOAD_COLOR
+   *     for more information.
+   *
+   *   FT_FACE_FLAG_VARIATION ::
+   *     [Since 2.9] Set if the current face (or named instance) has been
+   *     altered with @FT_Set_MM_Design_Coordinates,
+   *     @FT_Set_Var_Design_Coordinates, or @FT_Set_Var_Blend_Coordinates.
+   *     This flag is unset by a call to @FT_Set_Named_Instance.
+   */
 #define FT_FACE_FLAG_SCALABLE          ( 1L <<  0 )
 #define FT_FACE_FLAG_FIXED_SIZES       ( 1L <<  1 )
 #define FT_FACE_FLAG_FIXED_WIDTH       ( 1L <<  2 )
@@ -1254,14 +1225,14 @@ FT_BEGIN_HEADER
 #define FT_FACE_FLAG_VARIATION         ( 1L << 15 )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_HORIZONTAL( face )
+   *   FT_HAS_HORIZONTAL
    *
    * @description:
-   *   A macro that returns true whenever a face object contains
-   *   horizontal metrics (this is true for all font formats though).
+   *   A macro that returns true whenever a face object contains horizontal
+   *   metrics (this is true for all font formats though).
    *
    * @also:
    *   @FT_HAS_VERTICAL can be used to check for vertical metrics.
@@ -1271,10 +1242,10 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_HORIZONTAL )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_VERTICAL( face )
+   *   FT_HAS_VERTICAL
    *
    * @description:
    *   A macro that returns true whenever a face object contains real
@@ -1285,45 +1256,45 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_VERTICAL )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_KERNING( face )
+   *   FT_HAS_KERNING
    *
    * @description:
-   *   A macro that returns true whenever a face object contains kerning
-   *   data that can be accessed with @FT_Get_Kerning.
+   *   A macro that returns true whenever a face object contains kerning data
+   *   that can be accessed with @FT_Get_Kerning.
    *
    */
 #define FT_HAS_KERNING( face ) \
           ( (face)->face_flags & FT_FACE_FLAG_KERNING )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_SCALABLE( face )
+   *   FT_IS_SCALABLE
    *
    * @description:
    *   A macro that returns true whenever a face object contains a scalable
-   *   font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF,
-   *   and PFR font formats).
+   *   font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF, and
+   *   PFR font formats).
    *
    */
 #define FT_IS_SCALABLE( face ) \
           ( (face)->face_flags & FT_FACE_FLAG_SCALABLE )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_SFNT( face )
+   *   FT_IS_SFNT
    *
    * @description:
-   *   A macro that returns true whenever a face object contains a font
-   *   whose format is based on the SFNT storage scheme.  This usually
-   *   means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded
-   *   bitmap fonts.
+   *   A macro that returns true whenever a face object contains a font whose
+   *   format is based on the SFNT storage scheme.  This usually means:
+   *   TrueType fonts, OpenType fonts, as well as SFNT-based embedded bitmap
+   *   fonts.
    *
    *   If this macro is true, all functions defined in @FT_SFNT_NAMES_H and
    *   @FT_TRUETYPE_TABLES_H are available.
@@ -1333,14 +1304,14 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_SFNT )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_FIXED_WIDTH( face )
+   *   FT_IS_FIXED_WIDTH
    *
    * @description:
    *   A macro that returns true whenever a face object contains a font face
-   *   that contains fixed-width (or `monospace', `fixed-pitch', etc.)
+   *   that contains fixed-width (or 'monospace', 'fixed-pitch', etc.)
    *   glyphs.
    *
    */
@@ -1348,25 +1319,25 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_FIXED_WIDTH )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_FIXED_SIZES( face )
+   *   FT_HAS_FIXED_SIZES
    *
    * @description:
    *   A macro that returns true whenever a face object contains some
-   *   embedded bitmaps.  See the `available_sizes' field of the
-   *   @FT_FaceRec structure.
+   *   embedded bitmaps.  See the `available_sizes` field of the @FT_FaceRec
+   *   structure.
    *
    */
 #define FT_HAS_FIXED_SIZES( face ) \
           ( (face)->face_flags & FT_FACE_FLAG_FIXED_SIZES )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_FAST_GLYPHS( face )
+   *   FT_HAS_FAST_GLYPHS
    *
    * @description:
    *   Deprecated.
@@ -1375,10 +1346,10 @@ FT_BEGIN_HEADER
 #define FT_HAS_FAST_GLYPHS( face )  0
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_GLYPH_NAMES( face )
+   *   FT_HAS_GLYPH_NAMES
    *
    * @description:
    *   A macro that returns true whenever a face object contains some glyph
@@ -1389,10 +1360,10 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_GLYPH_NAMES )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_MULTIPLE_MASTERS( face )
+   *   FT_HAS_MULTIPLE_MASTERS
    *
    * @description:
    *   A macro that returns true whenever a face object contains some
@@ -1404,10 +1375,10 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_NAMED_INSTANCE( face )
+   *   FT_IS_NAMED_INSTANCE
    *
    * @description:
    *   A macro that returns true whenever a face object is a named instance
@@ -1426,14 +1397,14 @@ FT_BEGIN_HEADER
           ( (face)->face_index & 0x7FFF0000L )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_VARIATION( face )
+   *   FT_IS_VARIATION
    *
    * @description:
-   *   A macro that returns true whenever a face object has been altered
-   *   by @FT_Set_MM_Design_Coordinates, @FT_Set_Var_Design_Coordinates, or
+   *   A macro that returns true whenever a face object has been altered by
+   *   @FT_Set_MM_Design_Coordinates, @FT_Set_Var_Design_Coordinates, or
    *   @FT_Set_Var_Blend_Coordinates.
    *
    * @since:
@@ -1444,15 +1415,14 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_VARIATION )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_CID_KEYED( face )
+   *   FT_IS_CID_KEYED
    *
    * @description:
    *   A macro that returns true whenever a face object contains a CID-keyed
-   *   font.  See the discussion of @FT_FACE_FLAG_CID_KEYED for more
-   *   details.
+   *   font.  See the discussion of @FT_FACE_FLAG_CID_KEYED for more details.
    *
    *   If this macro is true, all functions defined in @FT_CID_H are
    *   available.
@@ -1462,13 +1432,13 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_CID_KEYED )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_IS_TRICKY( face )
+   *   FT_IS_TRICKY
    *
    * @description:
-   *   A macro that returns true whenever a face represents a `tricky' font.
+   *   A macro that returns true whenever a face represents a 'tricky' font.
    *   See the discussion of @FT_FACE_FLAG_TRICKY for more details.
    *
    */
@@ -1476,14 +1446,14 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_TRICKY )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
-   *   FT_HAS_COLOR( face )
+   *   FT_HAS_COLOR
    *
    * @description:
-   *   A macro that returns true whenever a face object contains
-   *   tables for color glyphs.
+   *   A macro that returns true whenever a face object contains tables for
+   *   color glyphs.
    *
    * @since:
    *   2.5.1
@@ -1493,149 +1463,148 @@ FT_BEGIN_HEADER
           ( (face)->face_flags & FT_FACE_FLAG_COLOR )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Const>                                                               */
-  /*    FT_STYLE_FLAG_XXX                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit flags to indicate the style of a given face.  These  */
-  /*    are used in the `style_flags' field of @FT_FaceRec.                */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_STYLE_FLAG_ITALIC ::                                            */
-  /*      The face style is italic or oblique.                             */
-  /*                                                                       */
-  /*    FT_STYLE_FLAG_BOLD ::                                              */
-  /*      The face is bold.                                                */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The style information as provided by FreeType is very basic.  More */
-  /*    details are beyond the scope and should be done on a higher level  */
-  /*    (for example, by analyzing various fields of the `OS/2' table in   */
-  /*    SFNT based fonts).                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_STYLE_FLAG_XXX
+   *
+   * @description:
+   *   A list of bit flags to indicate the style of a given face.  These are
+   *   used in the `style_flags` field of @FT_FaceRec.
+   *
+   * @values:
+   *   FT_STYLE_FLAG_ITALIC ::
+   *     The face style is italic or oblique.
+   *
+   *   FT_STYLE_FLAG_BOLD ::
+   *     The face is bold.
+   *
+   * @note:
+   *   The style information as provided by FreeType is very basic.  More
+   *   details are beyond the scope and should be done on a higher level (for
+   *   example, by analyzing various fields of the 'OS/2' table in SFNT based
+   *   fonts).
+   */
 #define FT_STYLE_FLAG_ITALIC  ( 1 << 0 )
 #define FT_STYLE_FLAG_BOLD    ( 1 << 1 )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Size_Internal                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An opaque handle to an `FT_Size_InternalRec' structure, used to    */
-  /*    model private data of a given @FT_Size object.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Size_Internal
+   *
+   * @description:
+   *   An opaque handle to an `FT_Size_InternalRec` structure, used to model
+   *   private data of a given @FT_Size object.
+   */
   typedef struct FT_Size_InternalRec_*  FT_Size_Internal;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Size_Metrics                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The size metrics structure gives the metrics of a size object.     */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    x_ppem       :: The width of the scaled EM square in pixels, hence */
-  /*                    the term `ppem' (pixels per EM).  It is also       */
-  /*                    referred to as `nominal width'.                    */
-  /*                                                                       */
-  /*    y_ppem       :: The height of the scaled EM square in pixels,      */
-  /*                    hence the term `ppem' (pixels per EM).  It is also */
-  /*                    referred to as `nominal height'.                   */
-  /*                                                                       */
-  /*    x_scale      :: A 16.16 fractional scaling value to convert        */
-  /*                    horizontal metrics from font units to 26.6         */
-  /*                    fractional pixels.  Only relevant for scalable     */
-  /*                    font formats.                                      */
-  /*                                                                       */
-  /*    y_scale      :: A 16.16 fractional scaling value to convert        */
-  /*                    vertical metrics from font units to 26.6           */
-  /*                    fractional pixels.  Only relevant for scalable     */
-  /*                    font formats.                                      */
-  /*                                                                       */
-  /*    ascender     :: The ascender in 26.6 fractional pixels, rounded up */
-  /*                    to an integer value.  See @FT_FaceRec for the      */
-  /*                    details.                                           */
-  /*                                                                       */
-  /*    descender    :: The descender in 26.6 fractional pixels, rounded   */
-  /*                    down to an integer value.  See @FT_FaceRec for the */
-  /*                    details.                                           */
-  /*                                                                       */
-  /*    height       :: The height in 26.6 fractional pixels, rounded to   */
-  /*                    an integer value.  See @FT_FaceRec for the         */
-  /*                    details.                                           */
-  /*                                                                       */
-  /*    max_advance  :: The maximum advance width in 26.6 fractional       */
-  /*                    pixels, rounded to an integer value.  See          */
-  /*                    @FT_FaceRec for the details.                       */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The scaling values, if relevant, are determined first during a     */
-  /*    size changing operation.  The remaining fields are then set by the */
-  /*    driver.  For scalable formats, they are usually set to scaled      */
-  /*    values of the corresponding fields in @FT_FaceRec.  Some values    */
-  /*    like ascender or descender are rounded for historical reasons;     */
-  /*    more precise values (for outline fonts) can be derived by scaling  */
-  /*    the corresponding @FT_FaceRec values manually, with code similar   */
-  /*    to the following.                                                  */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      scaled_ascender = FT_MulFix( face->ascender,                     */
-  /*                                   size_metrics->y_scale );            */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Note that due to glyph hinting and the selected rendering mode     */
-  /*    these values are usually not exact; consequently, they must be     */
-  /*    treated as unreliable with an error margin of at least one pixel!  */
-  /*                                                                       */
-  /*    Indeed, the only way to get the exact metrics is to render _all_   */
-  /*    glyphs.  As this would be a definite performance hit, it is up to  */
-  /*    client applications to perform such computations.                  */
-  /*                                                                       */
-  /*    The `FT_Size_Metrics' structure is valid for bitmap fonts also.    */
-  /*                                                                       */
-  /*                                                                       */
-  /*    *TrueType* *fonts* *with* *native* *bytecode* *hinting*            */
-  /*                                                                       */
-  /*    All applications that handle TrueType fonts with native hinting    */
-  /*    must be aware that TTFs expect different rounding of vertical font */
-  /*    dimensions.  The application has to cater for this, especially if  */
-  /*    it wants to rely on a TTF's vertical data (for example, to         */
-  /*    properly align box characters vertically).                         */
-  /*                                                                       */
-  /*    Only the application knows _in_ _advance_ that it is going to use  */
-  /*    native hinting for TTFs!  FreeType, on the other hand, selects the */
-  /*    hinting mode not at the time of creating an @FT_Size object but    */
-  /*    much later, namely while calling @FT_Load_Glyph.                   */
-  /*                                                                       */
-  /*    Here is some pseudo code that illustrates a possible solution.     */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      font_format = FT_Get_Font_Format( face );                        */
-  /*                                                                       */
-  /*      if ( !strcmp( font_format, "TrueType" ) &&                       */
-  /*           do_native_bytecode_hinting         )                        */
-  /*      {                                                                */
-  /*        ascender  = ROUND( FT_MulFix( face->ascender,                  */
-  /*                                      size_metrics->y_scale ) );       */
-  /*        descender = ROUND( FT_MulFix( face->descender,                 */
-  /*                                      size_metrics->y_scale ) );       */
-  /*      }                                                                */
-  /*      else                                                             */
-  /*      {                                                                */
-  /*        ascender  = size_metrics->ascender;                            */
-  /*        descender = size_metrics->descender;                           */
-  /*      }                                                                */
-  /*                                                                       */
-  /*      height      = size_metrics->height;                              */
-  /*      max_advance = size_metrics->max_advance;                         */
-  /*    }                                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Size_Metrics
+   *
+   * @description:
+   *   The size metrics structure gives the metrics of a size object.
+   *
+   * @fields:
+   *   x_ppem ::
+   *     The width of the scaled EM square in pixels, hence the term 'ppem'
+   *     (pixels per EM).  It is also referred to as 'nominal width'.
+   *
+   *   y_ppem ::
+   *     The height of the scaled EM square in pixels, hence the term 'ppem'
+   *     (pixels per EM).  It is also referred to as 'nominal height'.
+   *
+   *   x_scale ::
+   *     A 16.16 fractional scaling value to convert horizontal metrics from
+   *     font units to 26.6 fractional pixels.  Only relevant for scalable
+   *     font formats.
+   *
+   *   y_scale ::
+   *     A 16.16 fractional scaling value to convert vertical metrics from
+   *     font units to 26.6 fractional pixels.  Only relevant for scalable
+   *     font formats.
+   *
+   *   ascender ::
+   *     The ascender in 26.6 fractional pixels, rounded up to an integer
+   *     value.  See @FT_FaceRec for the details.
+   *
+   *   descender ::
+   *     The descender in 26.6 fractional pixels, rounded down to an integer
+   *     value.  See @FT_FaceRec for the details.
+   *
+   *   height ::
+   *     The height in 26.6 fractional pixels, rounded to an integer value.
+   *     See @FT_FaceRec for the details.
+   *
+   *   max_advance ::
+   *     The maximum advance width in 26.6 fractional pixels, rounded to an
+   *     integer value.  See @FT_FaceRec for the details.
+   *
+   * @note:
+   *   The scaling values, if relevant, are determined first during a size
+   *   changing operation.  The remaining fields are then set by the driver.
+   *   For scalable formats, they are usually set to scaled values of the
+   *   corresponding fields in @FT_FaceRec.  Some values like ascender or
+   *   descender are rounded for historical reasons; more precise values (for
+   *   outline fonts) can be derived by scaling the corresponding @FT_FaceRec
+   *   values manually, with code similar to the following.
+   *
+   *   ```
+   *     scaled_ascender = FT_MulFix( face->ascender,
+   *                                  size_metrics->y_scale );
+   *   ```
+   *
+   *   Note that due to glyph hinting and the selected rendering mode these
+   *   values are usually not exact; consequently, they must be treated as
+   *   unreliable with an error margin of at least one pixel!
+   *
+   *   Indeed, the only way to get the exact metrics is to render _all_
+   *   glyphs.  As this would be a definite performance hit, it is up to
+   *   client applications to perform such computations.
+   *
+   *   The `FT_Size_Metrics` structure is valid for bitmap fonts also.
+   *
+   *
+   *   **TrueType fonts with native bytecode hinting**
+   *
+   *   All applications that handle TrueType fonts with native hinting must
+   *   be aware that TTFs expect different rounding of vertical font
+   *   dimensions.  The application has to cater for this, especially if it
+   *   wants to rely on a TTF's vertical data (for example, to properly align
+   *   box characters vertically).
+   *
+   *   Only the application knows _in advance_ that it is going to use native
+   *   hinting for TTFs!  FreeType, on the other hand, selects the hinting
+   *   mode not at the time of creating an @FT_Size object but much later,
+   *   namely while calling @FT_Load_Glyph.
+   *
+   *   Here is some pseudo code that illustrates a possible solution.
+   *
+   *   ```
+   *     font_format = FT_Get_Font_Format( face );
+   *
+   *     if ( !strcmp( font_format, "TrueType" ) &&
+   *          do_native_bytecode_hinting         )
+   *     {
+   *       ascender  = ROUND( FT_MulFix( face->ascender,
+   *                                     size_metrics->y_scale ) );
+   *       descender = ROUND( FT_MulFix( face->descender,
+   *                                     size_metrics->y_scale ) );
+   *     }
+   *     else
+   *     {
+   *       ascender  = size_metrics->ascender;
+   *       descender = size_metrics->descender;
+   *     }
+   *
+   *     height      = size_metrics->height;
+   *     max_advance = size_metrics->max_advance;
+   *   ```
+   */
   typedef struct  FT_Size_Metrics_
   {
     FT_UShort  x_ppem;      /* horizontal pixels per EM               */
@@ -1652,25 +1621,27 @@ FT_BEGIN_HEADER
   } FT_Size_Metrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_SizeRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FreeType root size class structure.  A size object models a face   */
-  /*    object at a given size.                                            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    face    :: Handle to the parent face object.                       */
-  /*                                                                       */
-  /*    generic :: A typeless pointer, unused by the FreeType library or   */
-  /*               any of its drivers.  It can be used by client           */
-  /*               applications to link their own data to each size        */
-  /*               object.                                                 */
-  /*                                                                       */
-  /*    metrics :: Metrics for this size object.  This field is read-only. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_SizeRec
+   *
+   * @description:
+   *   FreeType root size class structure.  A size object models a face
+   *   object at a given size.
+   *
+   * @fields:
+   *   face ::
+   *     Handle to the parent face object.
+   *
+   *   generic ::
+   *     A typeless pointer, unused by the FreeType library or any of its
+   *     drivers.  It can be used by client applications to link their own
+   *     data to each size object.
+   *
+   *   metrics ::
+   *     Metrics for this size object.  This field is read-only.
+   */
   typedef struct  FT_SizeRec_
   {
     FT_Face           face;      /* parent face object              */
@@ -1681,237 +1652,234 @@ FT_BEGIN_HEADER
   } FT_SizeRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_SubGlyph                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The subglyph structure is an internal object used to describe      */
-  /*    subglyphs (for example, in the case of composites).                */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The subglyph implementation is not part of the high-level API,     */
-  /*    hence the forward structure declaration.                           */
-  /*                                                                       */
-  /*    You can however retrieve subglyph information with                 */
-  /*    @FT_Get_SubGlyph_Info.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_SubGlyph
+   *
+   * @description:
+   *   The subglyph structure is an internal object used to describe
+   *   subglyphs (for example, in the case of composites).
+   *
+   * @note:
+   *   The subglyph implementation is not part of the high-level API, hence
+   *   the forward structure declaration.
+   *
+   *   You can however retrieve subglyph information with
+   *   @FT_Get_SubGlyph_Info.
+   */
   typedef struct FT_SubGlyphRec_*  FT_SubGlyph;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Slot_Internal                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An opaque handle to an `FT_Slot_InternalRec' structure, used to    */
-  /*    model private data of a given @FT_GlyphSlot object.                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Slot_Internal
+   *
+   * @description:
+   *   An opaque handle to an `FT_Slot_InternalRec` structure, used to model
+   *   private data of a given @FT_GlyphSlot object.
+   */
   typedef struct FT_Slot_InternalRec_*  FT_Slot_Internal;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_GlyphSlotRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FreeType root glyph slot class structure.  A glyph slot is a       */
-  /*    container where individual glyphs can be loaded, be they in        */
-  /*    outline or bitmap format.                                          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    library           :: A handle to the FreeType library instance     */
-  /*                         this slot belongs to.                         */
-  /*                                                                       */
-  /*    face              :: A handle to the parent face object.           */
-  /*                                                                       */
-  /*    next              :: In some cases (like some font tools), several */
-  /*                         glyph slots per face object can be a good     */
-  /*                         thing.  As this is rare, the glyph slots are  */
-  /*                         listed through a direct, single-linked list   */
-  /*                         using its `next' field.                       */
-  /*                                                                       */
-  /*    generic           :: A typeless pointer unused by the FreeType     */
-  /*                         library or any of its drivers.  It can be     */
-  /*                         used by client applications to link their own */
-  /*                         data to each glyph slot object.               */
-  /*                                                                       */
-  /*    metrics           :: The metrics of the last loaded glyph in the   */
-  /*                         slot.  The returned values depend on the last */
-  /*                         load flags (see the @FT_Load_Glyph API        */
-  /*                         function) and can be expressed either in 26.6 */
-  /*                         fractional pixels or font units.              */
-  /*                                                                       */
-  /*                         Note that even when the glyph image is        */
-  /*                         transformed, the metrics are not.             */
-  /*                                                                       */
-  /*    linearHoriAdvance :: The advance width of the unhinted glyph.      */
-  /*                         Its value is expressed in 16.16 fractional    */
-  /*                         pixels, unless @FT_LOAD_LINEAR_DESIGN is set  */
-  /*                         when loading the glyph.  This field can be    */
-  /*                         important to perform correct WYSIWYG layout.  */
-  /*                         Only relevant for outline glyphs.             */
-  /*                                                                       */
-  /*    linearVertAdvance :: The advance height of the unhinted glyph.     */
-  /*                         Its value is expressed in 16.16 fractional    */
-  /*                         pixels, unless @FT_LOAD_LINEAR_DESIGN is set  */
-  /*                         when loading the glyph.  This field can be    */
-  /*                         important to perform correct WYSIWYG layout.  */
-  /*                         Only relevant for outline glyphs.             */
-  /*                                                                       */
-  /*    advance           :: This shorthand is, depending on               */
-  /*                         @FT_LOAD_IGNORE_TRANSFORM, the transformed    */
-  /*                         (hinted) advance width for the glyph, in 26.6 */
-  /*                         fractional pixel format.  As specified with   */
-  /*                         @FT_LOAD_VERTICAL_LAYOUT, it uses either the  */
-  /*                         `horiAdvance' or the `vertAdvance' value of   */
-  /*                         `metrics' field.                              */
-  /*                                                                       */
-  /*    format            :: This field indicates the format of the image  */
-  /*                         contained in the glyph slot.  Typically       */
-  /*                         @FT_GLYPH_FORMAT_BITMAP,                      */
-  /*                         @FT_GLYPH_FORMAT_OUTLINE, or                  */
-  /*                         @FT_GLYPH_FORMAT_COMPOSITE, but other values  */
-  /*                         are possible.                                 */
-  /*                                                                       */
-  /*    bitmap            :: This field is used as a bitmap descriptor.    */
-  /*                         Note that the address and content of the      */
-  /*                         bitmap buffer can change between calls of     */
-  /*                         @FT_Load_Glyph and a few other functions.     */
-  /*                                                                       */
-  /*    bitmap_left       :: The bitmap's left bearing expressed in        */
-  /*                         integer pixels.                               */
-  /*                                                                       */
-  /*    bitmap_top        :: The bitmap's top bearing expressed in integer */
-  /*                         pixels.  This is the distance from the        */
-  /*                         baseline to the top-most glyph scanline,      */
-  /*                         upwards y~coordinates being *positive*.       */
-  /*                                                                       */
-  /*    outline           :: The outline descriptor for the current glyph  */
-  /*                         image if its format is                        */
-  /*                         @FT_GLYPH_FORMAT_OUTLINE.  Once a glyph is    */
-  /*                         loaded, `outline' can be transformed,         */
-  /*                         distorted, emboldened, etc.  However, it must */
-  /*                         not be freed.                                 */
-  /*                                                                       */
-  /*    num_subglyphs     :: The number of subglyphs in a composite glyph. */
-  /*                         This field is only valid for the composite    */
-  /*                         glyph format that should normally only be     */
-  /*                         loaded with the @FT_LOAD_NO_RECURSE flag.     */
-  /*                                                                       */
-  /*    subglyphs         :: An array of subglyph descriptors for          */
-  /*                         composite glyphs.  There are `num_subglyphs'  */
-  /*                         elements in there.  Currently internal to     */
-  /*                         FreeType.                                     */
-  /*                                                                       */
-  /*    control_data      :: Certain font drivers can also return the      */
-  /*                         control data for a given glyph image (e.g.    */
-  /*                         TrueType bytecode, Type~1 charstrings, etc.). */
-  /*                         This field is a pointer to such data; it is   */
-  /*                         currently internal to FreeType.               */
-  /*                                                                       */
-  /*    control_len       :: This is the length in bytes of the control    */
-  /*                         data.  Currently internal to FreeType.        */
-  /*                                                                       */
-  /*    other             :: Reserved.                                     */
-  /*                                                                       */
-  /*    lsb_delta         :: The difference between hinted and unhinted    */
-  /*                         left side bearing while auto-hinting is       */
-  /*                         active.  Zero otherwise.                      */
-  /*                                                                       */
-  /*    rsb_delta         :: The difference between hinted and unhinted    */
-  /*                         right side bearing while auto-hinting is      */
-  /*                         active.  Zero otherwise.                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If @FT_Load_Glyph is called with default flags (see                */
-  /*    @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in   */
-  /*    its native format (e.g., an outline glyph for TrueType and Type~1  */
-  /*    formats).  [Since 2.9] The prospective bitmap metrics are          */
-  /*    calculated according to @FT_LOAD_TARGET_XXX and other flags even   */
-  /*    for the outline glyph, even if @FT_LOAD_RENDER is not set.         */
-  /*                                                                       */
-  /*    This image can later be converted into a bitmap by calling         */
-  /*    @FT_Render_Glyph.  This function searches the current renderer for */
-  /*    the native image's format, then invokes it.                        */
-  /*                                                                       */
-  /*    The renderer is in charge of transforming the native image through */
-  /*    the slot's face transformation fields, then converting it into a   */
-  /*    bitmap that is returned in `slot->bitmap'.                         */
-  /*                                                                       */
-  /*    Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */
-  /*    to specify the position of the bitmap relative to the current pen  */
-  /*    position (e.g., coordinates (0,0) on the baseline).  Of course,    */
-  /*    `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP.         */
-  /*                                                                       */
-  /*    Here is a small pseudo code fragment that shows how to use         */
-  /*    `lsb_delta' and `rsb_delta' to do fractional positioning of        */
-  /*    glyphs:                                                            */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      FT_GlyphSlot  slot     = face->glyph;                            */
-  /*      FT_Pos        origin_x = 0;                                      */
-  /*                                                                       */
-  /*                                                                       */
-  /*      for all glyphs do                                                */
-  /*        <load glyph with `FT_Load_Glyph'>                              */
-  /*                                                                       */
-  /*        FT_Outline_Translate( slot->outline, origin_x & 63, 0 );       */
-  /*                                                                       */
-  /*        <save glyph image, or render glyph, or ...>                    */
-  /*                                                                       */
-  /*        <compute kern between current and next glyph                   */
-  /*         and add it to `origin_x'>                                     */
-  /*                                                                       */
-  /*        origin_x += slot->advance.x;                                   */
-  /*        origin_x += slot->rsb_delta - slot->lsb_delta;                 */
-  /*      endfor                                                           */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Here is another small pseudo code fragment that shows how to use   */
-  /*    `lsb_delta' and `rsb_delta' to improve integer positioning of      */
-  /*    glyphs:                                                            */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      FT_GlyphSlot  slot           = face->glyph;                      */
-  /*      FT_Pos        origin_x       = 0;                                */
-  /*      FT_Pos        prev_rsb_delta = 0;                                */
-  /*                                                                       */
-  /*                                                                       */
-  /*      for all glyphs do                                                */
-  /*        <compute kern between current and previous glyph               */
-  /*         and add it to `origin_x'>                                     */
-  /*                                                                       */
-  /*        <load glyph with `FT_Load_Glyph'>                              */
-  /*                                                                       */
-  /*        if ( prev_rsb_delta - slot->lsb_delta >  32 )                  */
-  /*          origin_x -= 64;                                              */
-  /*        else if ( prev_rsb_delta - slot->lsb_delta < -31 )             */
-  /*          origin_x += 64;                                              */
-  /*                                                                       */
-  /*        prev_rsb_delta = slot->rsb_delta;                              */
-  /*                                                                       */
-  /*        <save glyph image, or render glyph, or ...>                    */
-  /*                                                                       */
-  /*        origin_x += slot->advance.x;                                   */
-  /*      endfor                                                           */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    If you use strong auto-hinting, you *must* apply these delta       */
-  /*    values!  Otherwise you will experience far too large inter-glyph   */
-  /*    spacing at small rendering sizes in most cases.  Note that it      */
-  /*    doesn't harm to use the above code for other hinting modes also,   */
-  /*    since the delta values are zero then.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_GlyphSlotRec
+   *
+   * @description:
+   *   FreeType root glyph slot class structure.  A glyph slot is a container
+   *   where individual glyphs can be loaded, be they in outline or bitmap
+   *   format.
+   *
+   * @fields:
+   *   library ::
+   *     A handle to the FreeType library instance this slot belongs to.
+   *
+   *   face ::
+   *     A handle to the parent face object.
+   *
+   *   next ::
+   *     In some cases (like some font tools), several glyph slots per face
+   *     object can be a good thing.  As this is rare, the glyph slots are
+   *     listed through a direct, single-linked list using its `next` field.
+   *
+   *   glyph_index ::
+   *     [Since 2.10] The glyph index passed as an argument to @FT_Load_Glyph
+   *     while initializing the glyph slot.
+   *
+   *   generic ::
+   *     A typeless pointer unused by the FreeType library or any of its
+   *     drivers.  It can be used by client applications to link their own
+   *     data to each glyph slot object.
+   *
+   *   metrics ::
+   *     The metrics of the last loaded glyph in the slot.  The returned
+   *     values depend on the last load flags (see the @FT_Load_Glyph API
+   *     function) and can be expressed either in 26.6 fractional pixels or
+   *     font units.
+   *
+   *     Note that even when the glyph image is transformed, the metrics are
+   *     not.
+   *
+   *   linearHoriAdvance ::
+   *     The advance width of the unhinted glyph.  Its value is expressed in
+   *     16.16 fractional pixels, unless @FT_LOAD_LINEAR_DESIGN is set when
+   *     loading the glyph.  This field can be important to perform correct
+   *     WYSIWYG layout.  Only relevant for outline glyphs.
+   *
+   *   linearVertAdvance ::
+   *     The advance height of the unhinted glyph.  Its value is expressed in
+   *     16.16 fractional pixels, unless @FT_LOAD_LINEAR_DESIGN is set when
+   *     loading the glyph.  This field can be important to perform correct
+   *     WYSIWYG layout.  Only relevant for outline glyphs.
+   *
+   *   advance ::
+   *     This shorthand is, depending on @FT_LOAD_IGNORE_TRANSFORM, the
+   *     transformed (hinted) advance width for the glyph, in 26.6 fractional
+   *     pixel format.  As specified with @FT_LOAD_VERTICAL_LAYOUT, it uses
+   *     either the `horiAdvance` or the `vertAdvance` value of `metrics`
+   *     field.
+   *
+   *   format ::
+   *     This field indicates the format of the image contained in the glyph
+   *     slot.  Typically @FT_GLYPH_FORMAT_BITMAP, @FT_GLYPH_FORMAT_OUTLINE,
+   *     or @FT_GLYPH_FORMAT_COMPOSITE, but other values are possible.
+   *
+   *   bitmap ::
+   *     This field is used as a bitmap descriptor.  Note that the address
+   *     and content of the bitmap buffer can change between calls of
+   *     @FT_Load_Glyph and a few other functions.
+   *
+   *   bitmap_left ::
+   *     The bitmap's left bearing expressed in integer pixels.
+   *
+   *   bitmap_top ::
+   *     The bitmap's top bearing expressed in integer pixels.  This is the
+   *     distance from the baseline to the top-most glyph scanline, upwards
+   *     y~coordinates being **positive**.
+   *
+   *   outline ::
+   *     The outline descriptor for the current glyph image if its format is
+   *     @FT_GLYPH_FORMAT_OUTLINE.  Once a glyph is loaded, `outline` can be
+   *     transformed, distorted, emboldened, etc.  However, it must not be
+   *     freed.
+   *
+   *   num_subglyphs ::
+   *     The number of subglyphs in a composite glyph.  This field is only
+   *     valid for the composite glyph format that should normally only be
+   *     loaded with the @FT_LOAD_NO_RECURSE flag.
+   *
+   *   subglyphs ::
+   *     An array of subglyph descriptors for composite glyphs.  There are
+   *     `num_subglyphs` elements in there.  Currently internal to FreeType.
+   *
+   *   control_data ::
+   *     Certain font drivers can also return the control data for a given
+   *     glyph image (e.g.  TrueType bytecode, Type~1 charstrings, etc.).
+   *     This field is a pointer to such data; it is currently internal to
+   *     FreeType.
+   *
+   *   control_len ::
+   *     This is the length in bytes of the control data.  Currently internal
+   *     to FreeType.
+   *
+   *   other ::
+   *     Reserved.
+   *
+   *   lsb_delta ::
+   *     The difference between hinted and unhinted left side bearing while
+   *     auto-hinting is active.  Zero otherwise.
+   *
+   *   rsb_delta ::
+   *     The difference between hinted and unhinted right side bearing while
+   *     auto-hinting is active.  Zero otherwise.
+   *
+   * @note:
+   *   If @FT_Load_Glyph is called with default flags (see @FT_LOAD_DEFAULT)
+   *   the glyph image is loaded in the glyph slot in its native format
+   *   (e.g., an outline glyph for TrueType and Type~1 formats).  [Since 2.9]
+   *   The prospective bitmap metrics are calculated according to
+   *   @FT_LOAD_TARGET_XXX and other flags even for the outline glyph, even
+   *   if @FT_LOAD_RENDER is not set.
+   *
+   *   This image can later be converted into a bitmap by calling
+   *   @FT_Render_Glyph.  This function searches the current renderer for the
+   *   native image's format, then invokes it.
+   *
+   *   The renderer is in charge of transforming the native image through the
+   *   slot's face transformation fields, then converting it into a bitmap
+   *   that is returned in `slot->bitmap`.
+   *
+   *   Note that `slot->bitmap_left` and `slot->bitmap_top` are also used to
+   *   specify the position of the bitmap relative to the current pen
+   *   position (e.g., coordinates (0,0) on the baseline).  Of course,
+   *   `slot->format` is also changed to @FT_GLYPH_FORMAT_BITMAP.
+   *
+   *   Here is a small pseudo code fragment that shows how to use `lsb_delta`
+   *   and `rsb_delta` to do fractional positioning of glyphs:
+   *
+   *   ```
+   *     FT_GlyphSlot  slot     = face->glyph;
+   *     FT_Pos        origin_x = 0;
+   *
+   *
+   *     for all glyphs do
+   *       <load glyph with `FT_Load_Glyph'>
+   *
+   *       FT_Outline_Translate( slot->outline, origin_x & 63, 0 );
+   *
+   *       <save glyph image, or render glyph, or ...>
+   *
+   *       <compute kern between current and next glyph
+   *        and add it to `origin_x'>
+   *
+   *       origin_x += slot->advance.x;
+   *       origin_x += slot->lsb_delta - slot->rsb_delta;
+   *     endfor
+   *   ```
+   *
+   *   Here is another small pseudo code fragment that shows how to use
+   *   `lsb_delta` and `rsb_delta` to improve integer positioning of glyphs:
+   *
+   *   ```
+   *     FT_GlyphSlot  slot           = face->glyph;
+   *     FT_Pos        origin_x       = 0;
+   *     FT_Pos        prev_rsb_delta = 0;
+   *
+   *
+   *     for all glyphs do
+   *       <compute kern between current and previous glyph
+   *        and add it to `origin_x'>
+   *
+   *       <load glyph with `FT_Load_Glyph'>
+   *
+   *       if ( prev_rsb_delta - slot->lsb_delta >  32 )
+   *         origin_x -= 64;
+   *       else if ( prev_rsb_delta - slot->lsb_delta < -31 )
+   *         origin_x += 64;
+   *
+   *       prev_rsb_delta = slot->rsb_delta;
+   *
+   *       <save glyph image, or render glyph, or ...>
+   *
+   *       origin_x += slot->advance.x;
+   *     endfor
+   *   ```
+   *
+   *   If you use strong auto-hinting, you **must** apply these delta values!
+   *   Otherwise you will experience far too large inter-glyph spacing at
+   *   small rendering sizes in most cases.  Note that it doesn't harm to use
+   *   the above code for other hinting modes also, since the delta values
+   *   are zero then.
+   */
   typedef struct  FT_GlyphSlotRec_
   {
     FT_Library        library;
     FT_Face           face;
     FT_GlyphSlot      next;
-    FT_UInt           reserved;       /* retained for binary compatibility */
+    FT_UInt           glyph_index; /* new in 2.10; was reserved previously */
     FT_Generic        generic;
 
     FT_Glyph_Metrics  metrics;
@@ -1952,86 +1920,92 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Init_FreeType                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initialize a new FreeType library object.  The set of modules      */
-  /*    that are registered by this function is determined at build time.  */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    alibrary :: A handle to a new library object.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    In case you want to provide your own memory allocating routines,   */
-  /*    use @FT_New_Library instead, followed by a call to                 */
-  /*    @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module)   */
-  /*    and @FT_Set_Default_Properties.                                    */
-  /*                                                                       */
-  /*    See the documentation of @FT_Library and @FT_Face for              */
-  /*    multi-threading issues.                                            */
-  /*                                                                       */
-  /*    If you need reference-counting (cf. @FT_Reference_Library), use    */
-  /*    @FT_New_Library and @FT_Done_Library.                              */
-  /*                                                                       */
-  /*    If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is   */
-  /*    set, this function reads the `FREETYPE_PROPERTIES' environment     */
-  /*    variable to control driver properties.  See section @properties    */
-  /*    for more.                                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Init_FreeType
+   *
+   * @description:
+   *   Initialize a new FreeType library object.  The set of modules that are
+   *   registered by this function is determined at build time.
+   *
+   * @output:
+   *   alibrary ::
+   *     A handle to a new library object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   In case you want to provide your own memory allocating routines, use
+   *   @FT_New_Library instead, followed by a call to @FT_Add_Default_Modules
+   *   (or a series of calls to @FT_Add_Module) and
+   *   @FT_Set_Default_Properties.
+   *
+   *   See the documentation of @FT_Library and @FT_Face for multi-threading
+   *   issues.
+   *
+   *   If you need reference-counting (cf. @FT_Reference_Library), use
+   *   @FT_New_Library and @FT_Done_Library.
+   *
+   *   If compilation option `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES` is
+   *   set, this function reads the `FREETYPE_PROPERTIES` environment
+   *   variable to control driver properties.  See section @properties for
+   *   more.
+   */
   FT_EXPORT( FT_Error )
   FT_Init_FreeType( FT_Library  *alibrary );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_FreeType                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroy a given FreeType library object and all of its children,   */
-  /*    including resources, drivers, faces, sizes, etc.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to the target library object.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_FreeType
+   *
+   * @description:
+   *   Destroy a given FreeType library object and all of its children,
+   *   including resources, drivers, faces, sizes, etc.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the target library object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Done_FreeType( FT_Library  library );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_OPEN_XXX                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit field constants used within the `flags' field of the */
-  /*    @FT_Open_Args structure.                                           */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_OPEN_MEMORY   :: This is a memory-based stream.                 */
-  /*                                                                       */
-  /*    FT_OPEN_STREAM   :: Copy the stream from the `stream' field.       */
-  /*                                                                       */
-  /*    FT_OPEN_PATHNAME :: Create a new input stream from a C~path        */
-  /*                        name.                                          */
-  /*                                                                       */
-  /*    FT_OPEN_DRIVER   :: Use the `driver' field.                        */
-  /*                                                                       */
-  /*    FT_OPEN_PARAMS   :: Use the `num_params' and `params' fields.      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The `FT_OPEN_MEMORY', `FT_OPEN_STREAM', and `FT_OPEN_PATHNAME'     */
-  /*    flags are mutually exclusive.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_OPEN_XXX
+   *
+   * @description:
+   *   A list of bit field constants used within the `flags` field of the
+   *   @FT_Open_Args structure.
+   *
+   * @values:
+   *   FT_OPEN_MEMORY ::
+   *     This is a memory-based stream.
+   *
+   *   FT_OPEN_STREAM ::
+   *     Copy the stream from the `stream` field.
+   *
+   *   FT_OPEN_PATHNAME ::
+   *     Create a new input stream from a C~path name.
+   *
+   *   FT_OPEN_DRIVER ::
+   *     Use the `driver` field.
+   *
+   *   FT_OPEN_PARAMS ::
+   *     Use the `num_params` and `params` fields.
+   *
+   * @note:
+   *   The `FT_OPEN_MEMORY`, `FT_OPEN_STREAM`, and `FT_OPEN_PATHNAME` flags
+   *   are mutually exclusive.
+   */
 #define FT_OPEN_MEMORY    0x1
 #define FT_OPEN_STREAM    0x2
 #define FT_OPEN_PATHNAME  0x4
@@ -2039,7 +2013,7 @@ FT_BEGIN_HEADER
 #define FT_OPEN_PARAMS    0x10
 
 
-  /* these constants are deprecated; use the corresponding `FT_OPEN_XXX' */
+  /* these constants are deprecated; use the corresponding `FT_OPEN_XXX` */
   /* values instead                                                      */
 #define ft_open_memory    FT_OPEN_MEMORY
 #define ft_open_stream    FT_OPEN_STREAM
@@ -2048,24 +2022,26 @@ FT_BEGIN_HEADER
 #define ft_open_params    FT_OPEN_PARAMS
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Parameter                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple structure to pass more or less generic parameters to      */
-  /*    @FT_Open_Face and @FT_Face_Properties.                             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    tag  :: A four-byte identification tag.                            */
-  /*                                                                       */
-  /*    data :: A pointer to the parameter data.                           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The ID and function of parameters are driver-specific.  See        */
-  /*    section @parameter_tags for more information.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Parameter
+   *
+   * @description:
+   *   A simple structure to pass more or less generic parameters to
+   *   @FT_Open_Face and @FT_Face_Properties.
+   *
+   * @fields:
+   *   tag ::
+   *     A four-byte identification tag.
+   *
+   *   data ::
+   *     A pointer to the parameter data.
+   *
+   * @note:
+   *   The ID and function of parameters are driver-specific.  See section
+   *   @parameter_tags for more information.
+   */
   typedef struct  FT_Parameter_
   {
     FT_ULong    tag;
@@ -2074,65 +2050,69 @@ FT_BEGIN_HEADER
   } FT_Parameter;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Open_Args                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to indicate how to open a new font file or stream.  A  */
-  /*    pointer to such a structure can be used as a parameter for the     */
-  /*    functions @FT_Open_Face and @FT_Attach_Stream.                     */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    flags       :: A set of bit flags indicating how to use the        */
-  /*                   structure.                                          */
-  /*                                                                       */
-  /*    memory_base :: The first byte of the file in memory.               */
-  /*                                                                       */
-  /*    memory_size :: The size in bytes of the file in memory.            */
-  /*                                                                       */
-  /*    pathname    :: A pointer to an 8-bit file pathname.                */
-  /*                                                                       */
-  /*    stream      :: A handle to a source stream object.                 */
-  /*                                                                       */
-  /*    driver      :: This field is exclusively used by @FT_Open_Face;    */
-  /*                   it simply specifies the font driver to use for      */
-  /*                   opening the face.  If set to NULL, FreeType tries   */
-  /*                   to load the face with each one of the drivers in    */
-  /*                   its list.                                           */
-  /*                                                                       */
-  /*    num_params  :: The number of extra parameters.                     */
-  /*                                                                       */
-  /*    params      :: Extra parameters passed to the font driver when     */
-  /*                   opening a new face.                                 */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The stream type is determined by the contents of `flags' that      */
-  /*    are tested in the following order by @FT_Open_Face:                */
-  /*                                                                       */
-  /*    If the @FT_OPEN_MEMORY bit is set, assume that this is a           */
-  /*    memory file of `memory_size' bytes, located at `memory_address'.   */
-  /*    The data are not copied, and the client is responsible for         */
-  /*    releasing and destroying them _after_ the corresponding call to    */
-  /*    @FT_Done_Face.                                                     */
-  /*                                                                       */
-  /*    Otherwise, if the @FT_OPEN_STREAM bit is set, assume that a        */
-  /*    custom input stream `stream' is used.                              */
-  /*                                                                       */
-  /*    Otherwise, if the @FT_OPEN_PATHNAME bit is set, assume that this   */
-  /*    is a normal file and use `pathname' to open it.                    */
-  /*                                                                       */
-  /*    If the @FT_OPEN_DRIVER bit is set, @FT_Open_Face only tries to     */
-  /*    open the file with the driver whose handler is in `driver'.        */
-  /*                                                                       */
-  /*    If the @FT_OPEN_PARAMS bit is set, the parameters given by         */
-  /*    `num_params' and `params' is used.  They are ignored otherwise.    */
-  /*                                                                       */
-  /*    Ideally, both the `pathname' and `params' fields should be tagged  */
-  /*    as `const'; this is missing for API backward compatibility.  In    */
-  /*    other words, applications should treat them as read-only.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Open_Args
+   *
+   * @description:
+   *   A structure to indicate how to open a new font file or stream.  A
+   *   pointer to such a structure can be used as a parameter for the
+   *   functions @FT_Open_Face and @FT_Attach_Stream.
+   *
+   * @fields:
+   *   flags ::
+   *     A set of bit flags indicating how to use the structure.
+   *
+   *   memory_base ::
+   *     The first byte of the file in memory.
+   *
+   *   memory_size ::
+   *     The size in bytes of the file in memory.
+   *
+   *   pathname ::
+   *     A pointer to an 8-bit file pathname.
+   *
+   *   stream ::
+   *     A handle to a source stream object.
+   *
+   *   driver ::
+   *     This field is exclusively used by @FT_Open_Face; it simply specifies
+   *     the font driver to use for opening the face.  If set to `NULL`,
+   *     FreeType tries to load the face with each one of the drivers in its
+   *     list.
+   *
+   *   num_params ::
+   *     The number of extra parameters.
+   *
+   *   params ::
+   *     Extra parameters passed to the font driver when opening a new face.
+   *
+   * @note:
+   *   The stream type is determined by the contents of `flags` that are
+   *   tested in the following order by @FT_Open_Face:
+   *
+   *   If the @FT_OPEN_MEMORY bit is set, assume that this is a memory file
+   *   of `memory_size` bytes, located at `memory_address`.  The data are not
+   *   copied, and the client is responsible for releasing and destroying
+   *   them _after_ the corresponding call to @FT_Done_Face.
+   *
+   *   Otherwise, if the @FT_OPEN_STREAM bit is set, assume that a custom
+   *   input stream `stream` is used.
+   *
+   *   Otherwise, if the @FT_OPEN_PATHNAME bit is set, assume that this is a
+   *   normal file and use `pathname` to open it.
+   *
+   *   If the @FT_OPEN_DRIVER bit is set, @FT_Open_Face only tries to open
+   *   the file with the driver whose handler is in `driver`.
+   *
+   *   If the @FT_OPEN_PARAMS bit is set, the parameters given by
+   *   `num_params` and `params` is used.  They are ignored otherwise.
+   *
+   *   Ideally, both the `pathname` and `params` fields should be tagged as
+   *   'const'; this is missing for API backward compatibility.  In other
+   *   words, applications should treat them as read-only.
+   */
   typedef struct  FT_Open_Args_
   {
     FT_UInt         flags;
@@ -2147,34 +2127,37 @@ FT_BEGIN_HEADER
   } FT_Open_Args;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Call @FT_Open_Face to open a font by its pathname.                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library resource.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    pathname   :: A path to the font file.                             */
-  /*                                                                       */
-  /*    face_index :: See @FT_Open_Face for a detailed description of this */
-  /*                  parameter.                                           */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aface      :: A handle to a new face object.  If `face_index' is   */
-  /*                  greater than or equal to zero, it must be non-NULL.  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Use @FT_Done_Face to destroy the created @FT_Face object (along    */
-  /*    with its slot and sizes).                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Face
+   *
+   * @description:
+   *   Call @FT_Open_Face to open a font by its pathname.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library resource.
+   *
+   * @input:
+   *   pathname ::
+   *     A path to the font file.
+   *
+   *   face_index ::
+   *     See @FT_Open_Face for a detailed description of this parameter.
+   *
+   * @output:
+   *   aface ::
+   *     A handle to a new face object.  If `face_index` is greater than or
+   *     equal to zero, it must be non-`NULL`.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Use @FT_Done_Face to destroy the created @FT_Face object (along with
+   *   its slot and sizes).
+   */
   FT_EXPORT( FT_Error )
   FT_New_Face( FT_Library   library,
                const char*  filepathname,
@@ -2182,36 +2165,39 @@ FT_BEGIN_HEADER
                FT_Face     *aface );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Memory_Face                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Call @FT_Open_Face to open a font that has been loaded into        */
-  /*    memory.                                                            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library resource.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    file_base  :: A pointer to the beginning of the font data.         */
-  /*                                                                       */
-  /*    file_size  :: The size of the memory chunk used by the font data.  */
-  /*                                                                       */
-  /*    face_index :: See @FT_Open_Face for a detailed description of this */
-  /*                  parameter.                                           */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aface      :: A handle to a new face object.  If `face_index' is   */
-  /*                  greater than or equal to zero, it must be non-NULL.  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You must not deallocate the memory before calling @FT_Done_Face.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Memory_Face
+   *
+   * @description:
+   *   Call @FT_Open_Face to open a font that has been loaded into memory.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library resource.
+   *
+   * @input:
+   *   file_base ::
+   *     A pointer to the beginning of the font data.
+   *
+   *   file_size ::
+   *     The size of the memory chunk used by the font data.
+   *
+   *   face_index ::
+   *     See @FT_Open_Face for a detailed description of this parameter.
+   *
+   * @output:
+   *   aface ::
+   *     A handle to a new face object.  If `face_index` is greater than or
+   *     equal to zero, it must be non-`NULL`.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   You must not deallocate the memory before calling @FT_Done_Face.
+   */
   FT_EXPORT( FT_Error )
   FT_New_Memory_Face( FT_Library      library,
                       const FT_Byte*  file_base,
@@ -2220,147 +2206,143 @@ FT_BEGIN_HEADER
                       FT_Face        *aface );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Open_Face                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a face object from a given resource described by            */
-  /*    @FT_Open_Args.                                                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library resource.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    args       :: A pointer to an `FT_Open_Args' structure that must   */
-  /*                  be filled by the caller.                             */
-  /*                                                                       */
-  /*    face_index :: This field holds two different values.  Bits 0-15    */
-  /*                  are the index of the face in the font file (starting */
-  /*                  with value~0).  Set it to~0 if there is only one     */
-  /*                  face in the font file.                               */
-  /*                                                                       */
-  /*                  [Since 2.6.1] Bits 16-30 are relevant to GX and      */
-  /*                  OpenType variation fonts only, specifying the named  */
-  /*                  instance index for the current face index (starting  */
-  /*                  with value~1; value~0 makes FreeType ignore named    */
-  /*                  instances).  For non-variation fonts, bits 16-30 are */
-  /*                  ignored.  Assuming that you want to access the third */
-  /*                  named instance in face~4, `face_index' should be set */
-  /*                  to 0x00030004.  If you want to access face~4 without */
-  /*                  variation handling, simply set `face_index' to       */
-  /*                  value~4.                                             */
-  /*                                                                       */
-  /*                  `FT_Open_Face' and its siblings can be used to       */
-  /*                  quickly check whether the font format of a given     */
-  /*                  font resource is supported by FreeType.  In general, */
-  /*                  if the `face_index' argument is negative, the        */
-  /*                  function's return value is~0 if the font format is   */
-  /*                  recognized, or non-zero otherwise.  The function     */
-  /*                  allocates a more or less empty face handle in        */
-  /*                  `*aface' (if `aface' isn't NULL); the only two       */
-  /*                  useful fields in this special case are               */
-  /*                  `face->num_faces' and `face->style_flags'.  For any  */
-  /*                  negative value of `face_index', `face->num_faces'    */
-  /*                  gives the number of faces within the font file.  For */
-  /*                  the negative value `-(N+1)' (with `N' a non-negative */
-  /*                  16-bit value), bits 16-30 in `face->style_flags'     */
-  /*                  give the number of named instances in face `N' if we */
-  /*                  have a variation font (or zero otherwise).  After    */
-  /*                  examination, the returned @FT_Face structure should  */
-  /*                  be deallocated with a call to @FT_Done_Face.         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aface      :: A handle to a new face object.  If `face_index' is   */
-  /*                  greater than or equal to zero, it must be non-NULL.  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Unlike FreeType 1.x, this function automatically creates a glyph   */
-  /*    slot for the face object that can be accessed directly through     */
-  /*    `face->glyph'.                                                     */
-  /*                                                                       */
-  /*    Each new face object created with this function also owns a        */
-  /*    default @FT_Size object, accessible as `face->size'.               */
-  /*                                                                       */
-  /*    One @FT_Library instance can have multiple face objects, this is,  */
-  /*    @FT_Open_Face and its siblings can be called multiple times using  */
-  /*    the same `library' argument.                                       */
-  /*                                                                       */
-  /*    See the discussion of reference counters in the description of     */
-  /*    @FT_Reference_Face.                                                */
-  /*                                                                       */
-  /*    To loop over all faces, use code similar to the following snippet  */
-  /*    (omitting the error handling).                                     */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      ...                                                              */
-  /*      FT_Face  face;                                                   */
-  /*      FT_Long  i, num_faces;                                           */
-  /*                                                                       */
-  /*                                                                       */
-  /*      error = FT_Open_Face( library, args, -1, &face );                */
-  /*      if ( error ) { ... }                                             */
-  /*                                                                       */
-  /*      num_faces = face->num_faces;                                     */
-  /*      FT_Done_Face( face );                                            */
-  /*                                                                       */
-  /*      for ( i = 0; i < num_faces; i++ )                                */
-  /*      {                                                                */
-  /*        ...                                                            */
-  /*        error = FT_Open_Face( library, args, i, &face );               */
-  /*        ...                                                            */
-  /*        FT_Done_Face( face );                                          */
-  /*        ...                                                            */
-  /*      }                                                                */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    To loop over all valid values for `face_index', use something      */
-  /*    similar to the following snippet, again without error handling.    */
-  /*    The code accesses all faces immediately (thus only a single call   */
-  /*    of `FT_Open_Face' within the do-loop), with and without named      */
-  /*    instances.                                                         */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      ...                                                              */
-  /*      FT_Face  face;                                                   */
-  /*                                                                       */
-  /*      FT_Long  num_faces     = 0;                                      */
-  /*      FT_Long  num_instances = 0;                                      */
-  /*                                                                       */
-  /*      FT_Long  face_idx     = 0;                                       */
-  /*      FT_Long  instance_idx = 0;                                       */
-  /*                                                                       */
-  /*                                                                       */
-  /*      do                                                               */
-  /*      {                                                                */
-  /*        FT_Long  id = ( instance_idx << 16 ) + face_idx;               */
-  /*                                                                       */
-  /*                                                                       */
-  /*        error = FT_Open_Face( library, args, id, &face );              */
-  /*        if ( error ) { ... }                                           */
-  /*                                                                       */
-  /*        num_faces     = face->num_faces;                               */
-  /*        num_instances = face->style_flags >> 16;                       */
-  /*                                                                       */
-  /*        ...                                                            */
-  /*                                                                       */
-  /*        FT_Done_Face( face );                                          */
-  /*                                                                       */
-  /*        if ( instance_idx < num_instances )                            */
-  /*          instance_idx++;                                              */
-  /*        else                                                           */
-  /*        {                                                              */
-  /*          face_idx++;                                                  */
-  /*          instance_idx = 0;                                            */
-  /*        }                                                              */
-  /*                                                                       */
-  /*      } while ( face_idx < num_faces )                                 */
-  /*    }                                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Open_Face
+   *
+   * @description:
+   *   Create a face object from a given resource described by @FT_Open_Args.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library resource.
+   *
+   * @input:
+   *   args ::
+   *     A pointer to an `FT_Open_Args` structure that must be filled by the
+   *     caller.
+   *
+   *   face_index ::
+   *     This field holds two different values.  Bits 0-15 are the index of
+   *     the face in the font file (starting with value~0).  Set it to~0 if
+   *     there is only one face in the font file.
+   *
+   *     [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation
+   *     fonts only, specifying the named instance index for the current face
+   *     index (starting with value~1; value~0 makes FreeType ignore named
+   *     instances).  For non-variation fonts, bits 16-30 are ignored.
+   *     Assuming that you want to access the third named instance in face~4,
+   *     `face_index` should be set to 0x00030004.  If you want to access
+   *     face~4 without variation handling, simply set `face_index` to
+   *     value~4.
+   *
+   *     `FT_Open_Face` and its siblings can be used to quickly check whether
+   *     the font format of a given font resource is supported by FreeType.
+   *     In general, if the `face_index` argument is negative, the function's
+   *     return value is~0 if the font format is recognized, or non-zero
+   *     otherwise.  The function allocates a more or less empty face handle
+   *     in `*aface` (if `aface` isn't `NULL`); the only two useful fields in
+   *     this special case are `face->num_faces` and `face->style_flags`.
+   *     For any negative value of `face_index`, `face->num_faces` gives the
+   *     number of faces within the font file.  For the negative value
+   *     '-(N+1)' (with 'N' a non-negative 16-bit value), bits 16-30 in
+   *     `face->style_flags` give the number of named instances in face 'N'
+   *     if we have a variation font (or zero otherwise).  After examination,
+   *     the returned @FT_Face structure should be deallocated with a call to
+   *     @FT_Done_Face.
+   *
+   * @output:
+   *   aface ::
+   *     A handle to a new face object.  If `face_index` is greater than or
+   *     equal to zero, it must be non-`NULL`.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Unlike FreeType 1.x, this function automatically creates a glyph slot
+   *   for the face object that can be accessed directly through
+   *   `face->glyph`.
+   *
+   *   Each new face object created with this function also owns a default
+   *   @FT_Size object, accessible as `face->size`.
+   *
+   *   One @FT_Library instance can have multiple face objects, this is,
+   *   @FT_Open_Face and its siblings can be called multiple times using the
+   *   same `library` argument.
+   *
+   *   See the discussion of reference counters in the description of
+   *   @FT_Reference_Face.
+   *
+   * @example:
+   *   To loop over all faces, use code similar to the following snippet
+   *   (omitting the error handling).
+   *
+   *   ```
+   *     ...
+   *     FT_Face  face;
+   *     FT_Long  i, num_faces;
+   *
+   *
+   *     error = FT_Open_Face( library, args, -1, &face );
+   *     if ( error ) { ... }
+   *
+   *     num_faces = face->num_faces;
+   *     FT_Done_Face( face );
+   *
+   *     for ( i = 0; i < num_faces; i++ )
+   *     {
+   *       ...
+   *       error = FT_Open_Face( library, args, i, &face );
+   *       ...
+   *       FT_Done_Face( face );
+   *       ...
+   *     }
+   *   ```
+   *
+   *   To loop over all valid values for `face_index`, use something similar
+   *   to the following snippet, again without error handling.  The code
+   *   accesses all faces immediately (thus only a single call of
+   *   `FT_Open_Face` within the do-loop), with and without named instances.
+   *
+   *   ```
+   *     ...
+   *     FT_Face  face;
+   *
+   *     FT_Long  num_faces     = 0;
+   *     FT_Long  num_instances = 0;
+   *
+   *     FT_Long  face_idx     = 0;
+   *     FT_Long  instance_idx = 0;
+   *
+   *
+   *     do
+   *     {
+   *       FT_Long  id = ( instance_idx << 16 ) + face_idx;
+   *
+   *
+   *       error = FT_Open_Face( library, args, id, &face );
+   *       if ( error ) { ... }
+   *
+   *       num_faces     = face->num_faces;
+   *       num_instances = face->style_flags >> 16;
+   *
+   *       ...
+   *
+   *       FT_Done_Face( face );
+   *
+   *       if ( instance_idx < num_instances )
+   *         instance_idx++;
+   *       else
+   *       {
+   *         face_idx++;
+   *         instance_idx = 0;
+   *       }
+   *
+   *     } while ( face_idx < num_faces )
+   *   ```
+   */
   FT_EXPORT( FT_Error )
   FT_Open_Face( FT_Library           library,
                 const FT_Open_Args*  args,
@@ -2368,204 +2350,208 @@ FT_BEGIN_HEADER
                 FT_Face             *aface );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Attach_File                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Call @FT_Attach_Stream to attach a file.                           */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face         :: The target face object.                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    filepathname :: The pathname.                                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Attach_File
+   *
+   * @description:
+   *   Call @FT_Attach_Stream to attach a file.
+   *
+   * @inout:
+   *   face ::
+   *     The target face object.
+   *
+   * @input:
+   *   filepathname ::
+   *     The pathname.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Attach_File( FT_Face      face,
                   const char*  filepathname );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Attach_Stream                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    `Attach' data to a face object.  Normally, this is used to read    */
-  /*    additional information for the face object.  For example, you can  */
-  /*    attach an AFM file that comes with a Type~1 font to get the        */
-  /*    kerning values and other metrics.                                  */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The target face object.                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    parameters :: A pointer to @FT_Open_Args that must be filled by    */
-  /*                  the caller.                                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The meaning of the `attach' (i.e., what really happens when the    */
-  /*    new file is read) is not fixed by FreeType itself.  It really      */
-  /*    depends on the font format (and thus the font driver).             */
-  /*                                                                       */
-  /*    Client applications are expected to know what they are doing       */
-  /*    when invoking this function.  Most drivers simply do not implement */
-  /*    file or stream attachments.                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Attach_Stream
+   *
+   * @description:
+   *   'Attach' data to a face object.  Normally, this is used to read
+   *   additional information for the face object.  For example, you can
+   *   attach an AFM file that comes with a Type~1 font to get the kerning
+   *   values and other metrics.
+   *
+   * @inout:
+   *   face ::
+   *     The target face object.
+   *
+   * @input:
+   *   parameters ::
+   *     A pointer to @FT_Open_Args that must be filled by the caller.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The meaning of the 'attach' (i.e., what really happens when the new
+   *   file is read) is not fixed by FreeType itself.  It really depends on
+   *   the font format (and thus the font driver).
+   *
+   *   Client applications are expected to know what they are doing when
+   *   invoking this function.  Most drivers simply do not implement file or
+   *   stream attachments.
+   */
   FT_EXPORT( FT_Error )
   FT_Attach_Stream( FT_Face        face,
                     FT_Open_Args*  parameters );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Reference_Face                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A counter gets initialized to~1 at the time an @FT_Face structure  */
-  /*    is created.  This function increments the counter.  @FT_Done_Face  */
-  /*    then only destroys a face if the counter is~1, otherwise it simply */
-  /*    decrements the counter.                                            */
-  /*                                                                       */
-  /*    This function helps in managing life-cycles of structures that     */
-  /*    reference @FT_Face objects.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to a target face object.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.4.2                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Reference_Face
+   *
+   * @description:
+   *   A counter gets initialized to~1 at the time an @FT_Face structure is
+   *   created.  This function increments the counter.  @FT_Done_Face then
+   *   only destroys a face if the counter is~1, otherwise it simply
+   *   decrements the counter.
+   *
+   *   This function helps in managing life-cycles of structures that
+   *   reference @FT_Face objects.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a target face object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @since:
+   *   2.4.2
+   */
   FT_EXPORT( FT_Error )
   FT_Reference_Face( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_Face                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Discard a given face object, as well as all of its child slots and */
-  /*    sizes.                                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to a target face object.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    See the discussion of reference counters in the description of     */
-  /*    @FT_Reference_Face.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_Face
+   *
+   * @description:
+   *   Discard a given face object, as well as all of its child slots and
+   *   sizes.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a target face object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   See the discussion of reference counters in the description of
+   *   @FT_Reference_Face.
+   */
   FT_EXPORT( FT_Error )
   FT_Done_Face( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Select_Size                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Select a bitmap strike.  To be more precise, this function sets    */
-  /*    the scaling factors of the active @FT_Size object in a face so     */
-  /*    that bitmaps from this particular strike are taken by              */
-  /*    @FT_Load_Glyph and friends.                                        */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face         :: A handle to a target face object.                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    strike_index :: The index of the bitmap strike in the              */
-  /*                    `available_sizes' field of @FT_FaceRec structure.  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    For bitmaps embedded in outline fonts it is common that only a     */
-  /*    subset of the available glyphs at a given ppem value is available. */
-  /*    FreeType silently uses outlines if there is no bitmap for a given  */
-  /*    glyph index.                                                       */
-  /*                                                                       */
-  /*    For GX and OpenType variation fonts, a bitmap strike makes sense   */
-  /*    only if the default instance is active (this is, no glyph          */
-  /*    variation takes place); otherwise, FreeType simply ignores bitmap  */
-  /*    strikes.  The same is true for all named instances that are        */
-  /*    different from the default instance.                               */
-  /*                                                                       */
-  /*    Don't use this function if you are using the FreeType cache API.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Select_Size
+   *
+   * @description:
+   *   Select a bitmap strike.  To be more precise, this function sets the
+   *   scaling factors of the active @FT_Size object in a face so that
+   *   bitmaps from this particular strike are taken by @FT_Load_Glyph and
+   *   friends.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to a target face object.
+   *
+   * @input:
+   *   strike_index ::
+   *     The index of the bitmap strike in the `available_sizes` field of
+   *     @FT_FaceRec structure.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   For bitmaps embedded in outline fonts it is common that only a subset
+   *   of the available glyphs at a given ppem value is available.  FreeType
+   *   silently uses outlines if there is no bitmap for a given glyph index.
+   *
+   *   For GX and OpenType variation fonts, a bitmap strike makes sense only
+   *   if the default instance is active (this is, no glyph variation takes
+   *   place); otherwise, FreeType simply ignores bitmap strikes.  The same
+   *   is true for all named instances that are different from the default
+   *   instance.
+   *
+   *   Don't use this function if you are using the FreeType cache API.
+   */
   FT_EXPORT( FT_Error )
   FT_Select_Size( FT_Face  face,
                   FT_Int   strike_index );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Size_Request_Type                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration type that lists the supported size request types,   */
-  /*    i.e., what input size (in font units) maps to the requested output */
-  /*    size (in pixels, as computed from the arguments of                 */
-  /*    @FT_Size_Request).                                                 */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_SIZE_REQUEST_TYPE_NOMINAL ::                                    */
-  /*      The nominal size.  The `units_per_EM' field of @FT_FaceRec is    */
-  /*      used to determine both scaling values.                           */
-  /*                                                                       */
-  /*      This is the standard scaling found in most applications.  In     */
-  /*      particular, use this size request type for TrueType fonts if     */
-  /*      they provide optical scaling or something similar.  Note,        */
-  /*      however, that `units_per_EM' is a rather abstract value which    */
-  /*      bears no relation to the actual size of the glyphs in a font.    */
-  /*                                                                       */
-  /*    FT_SIZE_REQUEST_TYPE_REAL_DIM ::                                   */
-  /*      The real dimension.  The sum of the `ascender' and (minus of)    */
-  /*      the `descender' fields of @FT_FaceRec is used to determine both  */
-  /*      scaling values.                                                  */
-  /*                                                                       */
-  /*    FT_SIZE_REQUEST_TYPE_BBOX ::                                       */
-  /*      The font bounding box.  The width and height of the `bbox' field */
-  /*      of @FT_FaceRec are used to determine the horizontal and vertical */
-  /*      scaling value, respectively.                                     */
-  /*                                                                       */
-  /*    FT_SIZE_REQUEST_TYPE_CELL ::                                       */
-  /*      The `max_advance_width' field of @FT_FaceRec is used to          */
-  /*      determine the horizontal scaling value; the vertical scaling     */
-  /*      value is determined the same way as                              */
-  /*      @FT_SIZE_REQUEST_TYPE_REAL_DIM does.  Finally, both scaling      */
-  /*      values are set to the smaller one.  This type is useful if you   */
-  /*      want to specify the font size for, say, a window of a given      */
-  /*      dimension and 80x24 cells.                                       */
-  /*                                                                       */
-  /*    FT_SIZE_REQUEST_TYPE_SCALES ::                                     */
-  /*      Specify the scaling values directly.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The above descriptions only apply to scalable formats.  For bitmap */
-  /*    formats, the behaviour is up to the driver.                        */
-  /*                                                                       */
-  /*    See the note section of @FT_Size_Metrics if you wonder how size    */
-  /*    requesting relates to scaling values.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Size_Request_Type
+   *
+   * @description:
+   *   An enumeration type that lists the supported size request types, i.e.,
+   *   what input size (in font units) maps to the requested output size (in
+   *   pixels, as computed from the arguments of @FT_Size_Request).
+   *
+   * @values:
+   *   FT_SIZE_REQUEST_TYPE_NOMINAL ::
+   *     The nominal size.  The `units_per_EM` field of @FT_FaceRec is used
+   *     to determine both scaling values.
+   *
+   *     This is the standard scaling found in most applications.  In
+   *     particular, use this size request type for TrueType fonts if they
+   *     provide optical scaling or something similar.  Note, however, that
+   *     `units_per_EM` is a rather abstract value which bears no relation to
+   *     the actual size of the glyphs in a font.
+   *
+   *   FT_SIZE_REQUEST_TYPE_REAL_DIM ::
+   *     The real dimension.  The sum of the `ascender` and (minus of) the
+   *     `descender` fields of @FT_FaceRec is used to determine both scaling
+   *     values.
+   *
+   *   FT_SIZE_REQUEST_TYPE_BBOX ::
+   *     The font bounding box.  The width and height of the `bbox` field of
+   *     @FT_FaceRec are used to determine the horizontal and vertical
+   *     scaling value, respectively.
+   *
+   *   FT_SIZE_REQUEST_TYPE_CELL ::
+   *     The `max_advance_width` field of @FT_FaceRec is used to determine
+   *     the horizontal scaling value; the vertical scaling value is
+   *     determined the same way as @FT_SIZE_REQUEST_TYPE_REAL_DIM does.
+   *     Finally, both scaling values are set to the smaller one.  This type
+   *     is useful if you want to specify the font size for, say, a window of
+   *     a given dimension and 80x24 cells.
+   *
+   *   FT_SIZE_REQUEST_TYPE_SCALES ::
+   *     Specify the scaling values directly.
+   *
+   * @note:
+   *   The above descriptions only apply to scalable formats.  For bitmap
+   *   formats, the behaviour is up to the driver.
+   *
+   *   See the note section of @FT_Size_Metrics if you wonder how size
+   *   requesting relates to scaling values.
+   */
   typedef enum  FT_Size_Request_Type_
   {
     FT_SIZE_REQUEST_TYPE_NOMINAL,
@@ -2579,42 +2565,45 @@ FT_BEGIN_HEADER
   } FT_Size_Request_Type;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Size_RequestRec                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a size request.                               */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    type           :: See @FT_Size_Request_Type.                       */
-  /*                                                                       */
-  /*    width          :: The desired width, given as a 26.6 fractional    */
-  /*                      point value (with 72pt = 1in).                   */
-  /*                                                                       */
-  /*    height         :: The desired height, given as a 26.6 fractional   */
-  /*                      point value (with 72pt = 1in).                   */
-  /*                                                                       */
-  /*    horiResolution :: The horizontal resolution (dpi, i.e., pixels per */
-  /*                      inch).  If set to zero, `width' is treated as a  */
-  /*                      26.6 fractional *pixel* value, which gets        */
-  /*                      internally rounded to an integer.                */
-  /*                                                                       */
-  /*    vertResolution :: The vertical resolution (dpi, i.e., pixels per   */
-  /*                      inch).  If set to zero, `height' is treated as a */
-  /*                      26.6 fractional *pixel* value, which gets        */
-  /*                      internally rounded to an integer.                */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If `width' is zero, the horizontal scaling value is set equal      */
-  /*    to the vertical scaling value, and vice versa.                     */
-  /*                                                                       */
-  /*    If `type' is FT_SIZE_REQUEST_TYPE_SCALES, `width' and `height' are */
-  /*    interpreted directly as 16.16 fractional scaling values, without   */
-  /*    any further modification, and both `horiResolution' and            */
-  /*    `vertResolution' are ignored.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Size_RequestRec
+   *
+   * @description:
+   *   A structure to model a size request.
+   *
+   * @fields:
+   *   type ::
+   *     See @FT_Size_Request_Type.
+   *
+   *   width ::
+   *     The desired width, given as a 26.6 fractional point value (with 72pt
+   *     = 1in).
+   *
+   *   height ::
+   *     The desired height, given as a 26.6 fractional point value (with
+   *     72pt = 1in).
+   *
+   *   horiResolution ::
+   *     The horizontal resolution (dpi, i.e., pixels per inch).  If set to
+   *     zero, `width` is treated as a 26.6 fractional **pixel** value, which
+   *     gets internally rounded to an integer.
+   *
+   *   vertResolution ::
+   *     The vertical resolution (dpi, i.e., pixels per inch).  If set to
+   *     zero, `height` is treated as a 26.6 fractional **pixel** value,
+   *     which gets internally rounded to an integer.
+   *
+   * @note:
+   *   If `width` is zero, the horizontal scaling value is set equal to the
+   *   vertical scaling value, and vice versa.
+   *
+   *   If `type` is `FT_SIZE_REQUEST_TYPE_SCALES`, `width` and `height` are
+   *   interpreted directly as 16.16 fractional scaling values, without any
+   *   further modification, and both `horiResolution` and `vertResolution`
+   *   are ignored.
+   */
   typedef struct  FT_Size_RequestRec_
   {
     FT_Size_Request_Type  type;
@@ -2626,96 +2615,102 @@ FT_BEGIN_HEADER
   } FT_Size_RequestRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Size_Request                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a size request structure.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Size_Request
+   *
+   * @description:
+   *   A handle to a size request structure.
+   */
   typedef struct FT_Size_RequestRec_  *FT_Size_Request;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Request_Size                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Resize the scale of the active @FT_Size object in a face.          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face :: A handle to a target face object.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    req  :: A pointer to a @FT_Size_RequestRec.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Although drivers may select the bitmap strike matching the         */
-  /*    request, you should not rely on this if you intend to select a     */
-  /*    particular bitmap strike.  Use @FT_Select_Size instead in that     */
-  /*    case.                                                              */
-  /*                                                                       */
-  /*    The relation between the requested size and the resulting glyph    */
-  /*    size is dependent entirely on how the size is defined in the       */
-  /*    source face.  The font designer chooses the final size of each     */
-  /*    glyph relative to this size.  For more information refer to        */
-  /*    `https://www.freetype.org/freetype2/docs/glyphs/glyphs-2.html'.    */
-  /*                                                                       */
-  /*    Contrary to @FT_Set_Char_Size, this function doesn't have special  */
-  /*    code to normalize zero-valued widths, heights, or resolutions      */
-  /*    (which lead to errors in most cases).                              */
-  /*                                                                       */
-  /*    Don't use this function if you are using the FreeType cache API.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Request_Size
+   *
+   * @description:
+   *   Resize the scale of the active @FT_Size object in a face.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to a target face object.
+   *
+   * @input:
+   *   req ::
+   *     A pointer to a @FT_Size_RequestRec.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Although drivers may select the bitmap strike matching the request,
+   *   you should not rely on this if you intend to select a particular
+   *   bitmap strike.  Use @FT_Select_Size instead in that case.
+   *
+   *   The relation between the requested size and the resulting glyph size
+   *   is dependent entirely on how the size is defined in the source face.
+   *   The font designer chooses the final size of each glyph relative to
+   *   this size.  For more information refer to
+   *   'https://www.freetype.org/freetype2/docs/glyphs/glyphs-2.html'.
+   *
+   *   Contrary to @FT_Set_Char_Size, this function doesn't have special code
+   *   to normalize zero-valued widths, heights, or resolutions (which lead
+   *   to errors in most cases).
+   *
+   *   Don't use this function if you are using the FreeType cache API.
+   */
   FT_EXPORT( FT_Error )
   FT_Request_Size( FT_Face          face,
                    FT_Size_Request  req );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Char_Size                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Call @FT_Request_Size to request the nominal size (in points).     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face            :: A handle to a target face object.               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    char_width      :: The nominal width, in 26.6 fractional points.   */
-  /*                                                                       */
-  /*    char_height     :: The nominal height, in 26.6 fractional points.  */
-  /*                                                                       */
-  /*    horz_resolution :: The horizontal resolution in dpi.               */
-  /*                                                                       */
-  /*    vert_resolution :: The vertical resolution in dpi.                 */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    While this function allows fractional points as input values, the  */
-  /*    resulting ppem value for the given resolution is always rounded to */
-  /*    the nearest integer.                                               */
-  /*                                                                       */
-  /*    If either the character width or height is zero, it is set equal   */
-  /*    to the other value.                                                */
-  /*                                                                       */
-  /*    If either the horizontal or vertical resolution is zero, it is set */
-  /*    equal to the other value.                                          */
-  /*                                                                       */
-  /*    A character width or height smaller than 1pt is set to 1pt; if     */
-  /*    both resolution values are zero, they are set to 72dpi.            */
-  /*                                                                       */
-  /*    Don't use this function if you are using the FreeType cache API.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Char_Size
+   *
+   * @description:
+   *   Call @FT_Request_Size to request the nominal size (in points).
+   *
+   * @inout:
+   *   face ::
+   *     A handle to a target face object.
+   *
+   * @input:
+   *   char_width ::
+   *     The nominal width, in 26.6 fractional points.
+   *
+   *   char_height ::
+   *     The nominal height, in 26.6 fractional points.
+   *
+   *   horz_resolution ::
+   *     The horizontal resolution in dpi.
+   *
+   *   vert_resolution ::
+   *     The vertical resolution in dpi.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   While this function allows fractional points as input values, the
+   *   resulting ppem value for the given resolution is always rounded to the
+   *   nearest integer.
+   *
+   *   If either the character width or height is zero, it is set equal to
+   *   the other value.
+   *
+   *   If either the horizontal or vertical resolution is zero, it is set
+   *   equal to the other value.
+   *
+   *   A character width or height smaller than 1pt is set to 1pt; if both
+   *   resolution values are zero, they are set to 72dpi.
+   *
+   *   Don't use this function if you are using the FreeType cache API.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Char_Size( FT_Face     face,
                     FT_F26Dot6  char_width,
@@ -2724,134 +2719,138 @@ FT_BEGIN_HEADER
                     FT_UInt     vert_resolution );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Pixel_Sizes                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Call @FT_Request_Size to request the nominal size (in pixels).     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face         :: A handle to the target face object.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    pixel_width  :: The nominal width, in pixels.                      */
-  /*                                                                       */
-  /*    pixel_height :: The nominal height, in pixels.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You should not rely on the resulting glyphs matching or being      */
-  /*    constrained to this pixel size.  Refer to @FT_Request_Size to      */
-  /*    understand how requested sizes relate to actual sizes.             */
-  /*                                                                       */
-  /*    Don't use this function if you are using the FreeType cache API.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Pixel_Sizes
+   *
+   * @description:
+   *   Call @FT_Request_Size to request the nominal size (in pixels).
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @input:
+   *   pixel_width ::
+   *     The nominal width, in pixels.
+   *
+   *   pixel_height ::
+   *     The nominal height, in pixels.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   You should not rely on the resulting glyphs matching or being
+   *   constrained to this pixel size.  Refer to @FT_Request_Size to
+   *   understand how requested sizes relate to actual sizes.
+   *
+   *   Don't use this function if you are using the FreeType cache API.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Pixel_Sizes( FT_Face  face,
                       FT_UInt  pixel_width,
                       FT_UInt  pixel_height );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Load_Glyph                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load a glyph into the glyph slot of a face object.                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face        :: A handle to the target face object where the glyph  */
-  /*                   is loaded.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    glyph_index :: The index of the glyph in the font file.  For       */
-  /*                   CID-keyed fonts (either in PS or in CFF format)     */
-  /*                   this argument specifies the CID value.              */
-  /*                                                                       */
-  /*    load_flags  :: A flag indicating what to load for this glyph.  The */
-  /*                   @FT_LOAD_XXX constants can be used to control the   */
-  /*                   glyph loading process (e.g., whether the outline    */
-  /*                   should be scaled, whether to load bitmaps or not,   */
-  /*                   whether to hint the outline, etc).                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The loaded glyph may be transformed.  See @FT_Set_Transform for    */
-  /*    the details.                                                       */
-  /*                                                                       */
-  /*    For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is        */
-  /*    returned for invalid CID values (this is, for CID values that      */
-  /*    don't have a corresponding glyph in the font).  See the discussion */
-  /*    of the @FT_FACE_FLAG_CID_KEYED flag for more details.              */
-  /*                                                                       */
-  /*    If you receive `FT_Err_Glyph_Too_Big', try getting the glyph       */
-  /*    outline at EM size, then scale it manually and fill it as a        */
-  /*    graphics operation.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Load_Glyph
+   *
+   * @description:
+   *   Load a glyph into the glyph slot of a face object.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the target face object where the glyph is loaded.
+   *
+   * @input:
+   *   glyph_index ::
+   *     The index of the glyph in the font file.  For CID-keyed fonts
+   *     (either in PS or in CFF format) this argument specifies the CID
+   *     value.
+   *
+   *   load_flags ::
+   *     A flag indicating what to load for this glyph.  The @FT_LOAD_XXX
+   *     constants can be used to control the glyph loading process (e.g.,
+   *     whether the outline should be scaled, whether to load bitmaps or
+   *     not, whether to hint the outline, etc).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The loaded glyph may be transformed.  See @FT_Set_Transform for the
+   *   details.
+   *
+   *   For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument` is returned
+   *   for invalid CID values (this is, for CID values that don't have a
+   *   corresponding glyph in the font).  See the discussion of the
+   *   @FT_FACE_FLAG_CID_KEYED flag for more details.
+   *
+   *   If you receive `FT_Err_Glyph_Too_Big`, try getting the glyph outline
+   *   at EM size, then scale it manually and fill it as a graphics
+   *   operation.
+   */
   FT_EXPORT( FT_Error )
   FT_Load_Glyph( FT_Face   face,
                  FT_UInt   glyph_index,
                  FT_Int32  load_flags );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Load_Char                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load a glyph into the glyph slot of a face object, accessed by its */
-  /*    character code.                                                    */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face        :: A handle to a target face object where the glyph    */
-  /*                   is loaded.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    char_code   :: The glyph's character code, according to the        */
-  /*                   current charmap used in the face.                   */
-  /*                                                                       */
-  /*    load_flags  :: A flag indicating what to load for this glyph.  The */
-  /*                   @FT_LOAD_XXX constants can be used to control the   */
-  /*                   glyph loading process (e.g., whether the outline    */
-  /*                   should be scaled, whether to load bitmaps or not,   */
-  /*                   whether to hint the outline, etc).                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph.  */
-  /*                                                                       */
-  /*    Many fonts contain glyphs that can't be loaded by this function    */
-  /*    since its glyph indices are not listed in any of the font's        */
-  /*    charmaps.                                                          */
-  /*                                                                       */
-  /*    If no active cmap is set up (i.e., `face->charmap' is zero), the   */
-  /*    call to @FT_Get_Char_Index is omitted, and the function behaves    */
-  /*    identically to @FT_Load_Glyph.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Load_Char
+   *
+   * @description:
+   *   Load a glyph into the glyph slot of a face object, accessed by its
+   *   character code.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to a target face object where the glyph is loaded.
+   *
+   * @input:
+   *   char_code ::
+   *     The glyph's character code, according to the current charmap used in
+   *     the face.
+   *
+   *   load_flags ::
+   *     A flag indicating what to load for this glyph.  The @FT_LOAD_XXX
+   *     constants can be used to control the glyph loading process (e.g.,
+   *     whether the outline should be scaled, whether to load bitmaps or
+   *     not, whether to hint the outline, etc).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph.
+   *
+   *   Many fonts contain glyphs that can't be loaded by this function since
+   *   its glyph indices are not listed in any of the font's charmaps.
+   *
+   *   If no active cmap is set up (i.e., `face->charmap` is zero), the call
+   *   to @FT_Get_Char_Index is omitted, and the function behaves identically
+   *   to @FT_Load_Glyph.
+   */
   FT_EXPORT( FT_Error )
   FT_Load_Char( FT_Face   face,
                 FT_ULong  char_code,
                 FT_Int32  load_flags );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_LOAD_XXX
    *
    * @description:
-   *   A list of bit field constants for @FT_Load_Glyph to indicate what
-   *   kind of operations to perform during glyph loading.
+   *   A list of bit field constants for @FT_Load_Glyph to indicate what kind
+   *   of operations to perform during glyph loading.
    *
    * @values:
    *   FT_LOAD_DEFAULT ::
@@ -2859,15 +2858,14 @@ FT_BEGIN_HEADER
    *     operation.  In this case, the following happens:
    *
    *     1. FreeType looks for a bitmap for the glyph corresponding to the
-   *        face's current size.  If one is found, the function returns.
-   *        The bitmap data can be accessed from the glyph slot (see note
-   *        below).
+   *     face's current size.  If one is found, the function returns.  The
+   *     bitmap data can be accessed from the glyph slot (see note below).
    *
    *     2. If no embedded bitmap is searched for or found, FreeType looks
-   *        for a scalable outline.  If one is found, it is loaded from
-   *        the font file, scaled to device pixels, then `hinted' to the
-   *        pixel grid in order to optimize it.  The outline data can be
-   *        accessed from the glyph slot (see note below).
+   *     for a scalable outline.  If one is found, it is loaded from the font
+   *     file, scaled to device pixels, then 'hinted' to the pixel grid in
+   *     order to optimize it.  The outline data can be accessed from the
+   *     glyph slot (see note below).
    *
    *     Note that by default the glyph loader doesn't render outlines into
    *     bitmaps.  The following flags are used to modify this default
@@ -2879,14 +2877,14 @@ FT_BEGIN_HEADER
    *     This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and
    *     unsets @FT_LOAD_RENDER.
    *
-   *     If the font is `tricky' (see @FT_FACE_FLAG_TRICKY for more), using
-   *     FT_LOAD_NO_SCALE usually yields meaningless outlines because the
-   *     subglyphs must be scaled and positioned with hinting instructions.
-   *     This can be solved by loading the font without FT_LOAD_NO_SCALE and
-   *     setting the character size to `font->units_per_EM'.
+   *     If the font is 'tricky' (see @FT_FACE_FLAG_TRICKY for more), using
+   *     `FT_LOAD_NO_SCALE` usually yields meaningless outlines because the
+   *     subglyphs must be scaled and positioned with hinting instructions. 
+   *     This can be solved by loading the font without `FT_LOAD_NO_SCALE`
+   *     and setting the character size to `font->units_per_EM`.
    *
    *   FT_LOAD_NO_HINTING ::
-   *     Disable hinting.  This generally generates `blurrier' bitmap glyphs
+   *     Disable hinting.  This generally generates 'blurrier' bitmap glyphs
    *     when the glyph are rendered in any of the anti-aliased modes.  See
    *     also the note below.
    *
@@ -2907,34 +2905,37 @@ FT_BEGIN_HEADER
    *
    *   FT_LOAD_VERTICAL_LAYOUT ::
    *     Load the glyph for vertical text layout.  In particular, the
-   *     `advance' value in the @FT_GlyphSlotRec structure is set to the
-   *     `vertAdvance' value of the `metrics' field.
+   *     `advance` value in the @FT_GlyphSlotRec structure is set to the
+   *     `vertAdvance` value of the `metrics` field.
    *
-   *     In case @FT_HAS_VERTICAL doesn't return true, you shouldn't use
-   *     this flag currently.  Reason is that in this case vertical metrics
-   *     get synthesized, and those values are not always consistent across
+   *     In case @FT_HAS_VERTICAL doesn't return true, you shouldn't use this
+   *     flag currently.  Reason is that in this case vertical metrics get
+   *     synthesized, and those values are not always consistent across
    *     various font formats.
    *
    *   FT_LOAD_FORCE_AUTOHINT ::
-   *     Prefer the auto-hinter over the font's native hinter.  See also
-   *     the note below.
+   *     Prefer the auto-hinter over the font's native hinter.  See also the
+   *     note below.
    *
    *   FT_LOAD_PEDANTIC ::
    *     Make the font driver perform pedantic verifications during glyph
-   *     loading.  This is mostly used to detect broken glyphs in fonts.
-   *     By default, FreeType tries to handle broken fonts also.
+   *     loading and hinting.  This is mostly used to detect broken glyphs in
+   *     fonts.  By default, FreeType tries to handle broken fonts also.
    *
    *     In particular, errors from the TrueType bytecode engine are not
-   *     passed to the application if this flag is not set; this might
-   *     result in partially hinted or distorted glyphs in case a glyph's
-   *     bytecode is buggy.
+   *     passed to the application if this flag is not set; this might result
+   *     in partially hinted or distorted glyphs in case a glyph's bytecode
+   *     is buggy.
    *
    *   FT_LOAD_NO_RECURSE ::
-   *     Don't load composite glyphs recursively.  Instead, the font
-   *     driver should set the `num_subglyph' and `subglyphs' values of
-   *     the glyph slot accordingly, and set `glyph->format' to
-   *     @FT_GLYPH_FORMAT_COMPOSITE.  The description of subglyphs can
-   *     then be accessed with @FT_Get_SubGlyph_Info.
+   *     Don't load composite glyphs recursively.  Instead, the font driver
+   *     fills the `num_subglyph` and `subglyphs` values of the glyph slot;
+   *     it also sets `glyph->format` to @FT_GLYPH_FORMAT_COMPOSITE.  The
+   *     description of subglyphs can then be accessed with
+   *     @FT_Get_SubGlyph_Info.
+   *
+   *     Don't use this flag for retrieving metrics information since some
+   *     font drivers only return rudimentary data.
    *
    *     This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM.
    *
@@ -2951,23 +2952,35 @@ FT_BEGIN_HEADER
    *     monochrome-optimized hinting algorithm is used.
    *
    *   FT_LOAD_LINEAR_DESIGN ::
-   *     Keep  `linearHoriAdvance' and `linearVertAdvance' fields of
-   *     @FT_GlyphSlotRec in font units.  See @FT_GlyphSlotRec for
-   *     details.
+   *     Keep `linearHoriAdvance` and `linearVertAdvance` fields of
+   *     @FT_GlyphSlotRec in font units.  See @FT_GlyphSlotRec for details.
    *
    *   FT_LOAD_NO_AUTOHINT ::
    *     Disable the auto-hinter.  See also the note below.
    *
    *   FT_LOAD_COLOR ::
+   *     Load colored glyphs.  There are slight differences depending on the
+   *     font format.
+   *
    *     [Since 2.5] Load embedded color bitmap images.  The resulting color
-   *     bitmaps, if available, will have the @FT_PIXEL_MODE_BGRA format.
-   *     If the flag is not set and color bitmaps are found, they are
-   *     converted to 256-level gray bitmaps transparently, using the
-   *     @FT_PIXEL_MODE_GRAY format.
+   *     bitmaps, if available, will have the @FT_PIXEL_MODE_BGRA format,
+   *     with pre-multiplied color channels.  If the flag is not set and
+   *     color bitmaps are found, they are converted to 256-level gray
+   *     bitmaps, using the @FT_PIXEL_MODE_GRAY format.
+   *
+   *     [Since 2.10, experimental] If the glyph index contains an entry in
+   *     the face's 'COLR' table with a 'CPAL' palette table (as defined in
+   *     the OpenType specification), make @FT_Render_Glyph provide a default
+   *     blending of the color glyph layers associated with the glyph index,
+   *     using the same bitmap format as embedded color bitmap images.  This
+   *     is mainly for convenience; for full control of color layers use
+   *     @FT_Get_Color_Glyph_Layer and FreeType's color functions like
+   *     @FT_Palette_Select instead of setting @FT_LOAD_COLOR for rendering
+   *     so that the client application can handle blending by itself.
    *
    *   FT_LOAD_COMPUTE_METRICS ::
-   *     [Since 2.6.1] Compute glyph metrics from the glyph data, without
-   *     the use of bundled metrics tables (for example, the `hdmx' table in
+   *     [Since 2.6.1] Compute glyph metrics from the glyph data, without the
+   *     use of bundled metrics tables (for example, the 'hdmx' table in
    *     TrueType fonts).  This flag is mainly used by font validating or
    *     font editing applications, which need to ignore, verify, or edit
    *     those tables.
@@ -2976,9 +2989,9 @@ FT_BEGIN_HEADER
    *
    *   FT_LOAD_BITMAP_METRICS_ONLY ::
    *     [Since 2.7.1] Request loading of the metrics and bitmap image
-   *     information of a (possibly embedded) bitmap glyph without
-   *     allocating or copying the bitmap image data itself.  No effect if
-   *     the target glyph is not a bitmap image.
+   *     information of a (possibly embedded) bitmap glyph without allocating
+   *     or copying the bitmap image data itself.  No effect if the target
+   *     glyph is not a bitmap image.
    *
    *     This flag unsets @FT_LOAD_RENDER.
    *
@@ -2993,8 +3006,8 @@ FT_BEGIN_HEADER
    *   @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter.  You can
    *   disable hinting by setting @FT_LOAD_NO_HINTING or change the
    *   precedence by setting @FT_LOAD_FORCE_AUTOHINT.  You can also set
-   *   @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be
-   *   used at all.
+   *   @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be used
+   *   at all.
    *
    *   See the description of @FT_FACE_FLAG_TRICKY for a special exception
    *   (affecting only a handful of Asian fonts).
@@ -3005,7 +3018,7 @@ FT_BEGIN_HEADER
    *   Note that the auto-hinter needs a valid Unicode cmap (either a native
    *   one or synthesized by FreeType) for producing correct results.  If a
    *   font provides an incorrect mapping (for example, assigning the
-   *   character code U+005A, LATIN CAPITAL LETTER Z, to a glyph depicting a
+   *   character code U+005A, LATIN CAPITAL LETTER~Z, to a glyph depicting a
    *   mathematical integral sign), the auto-hinter might produce useless
    *   results.
    *
@@ -3025,7 +3038,7 @@ FT_BEGIN_HEADER
 #define FT_LOAD_MONOCHROME                   ( 1L << 12 )
 #define FT_LOAD_LINEAR_DESIGN                ( 1L << 13 )
 #define FT_LOAD_NO_AUTOHINT                  ( 1L << 15 )
-  /* Bits 16-19 are used by `FT_LOAD_TARGET_' */
+  /* Bits 16-19 are used by `FT_LOAD_TARGET_` */
 #define FT_LOAD_COLOR                        ( 1L << 20 )
 #define FT_LOAD_COMPUTE_METRICS              ( 1L << 21 )
 #define FT_LOAD_BITMAP_METRICS_ONLY          ( 1L << 22 )
@@ -3044,19 +3057,17 @@ FT_BEGIN_HEADER
    *
    * @description:
    *   A list of values to select a specific hinting algorithm for the
-   *   hinter.  You should OR one of these values to your `load_flags'
-   *   when calling @FT_Load_Glyph.
+   *   hinter.  You should OR one of these values to your `load_flags` when
+   *   calling @FT_Load_Glyph.
    *
-   *   Note that a font's native hinters may ignore the hinting algorithm
-   *   you have specified (e.g., the TrueType bytecode interpreter).  You
-   *   can set @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is
-   *   used.
+   *   Note that a font's native hinters may ignore the hinting algorithm you
+   *   have specified (e.g., the TrueType bytecode interpreter).  You can set
+   *   @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used.
    *
    * @values:
    *   FT_LOAD_TARGET_NORMAL ::
    *     The default hinting algorithm, optimized for standard gray-level
-   *     rendering.  For monochrome output, use @FT_LOAD_TARGET_MONO
-   *     instead.
+   *     rendering.  For monochrome output, use @FT_LOAD_TARGET_MONO instead.
    *
    *   FT_LOAD_TARGET_LIGHT ::
    *     A lighter hinting algorithm for gray-level modes.  Many generated
@@ -3069,13 +3080,13 @@ FT_BEGIN_HEADER
    *     auto-hinter.
    *
    *     Advance widths are rounded to integer values; however, using the
-   *     `lsb_delta' and `rsb_delta' fields of @FT_GlyphSlotRec, it is
+   *     `lsb_delta` and `rsb_delta` fields of @FT_GlyphSlotRec, it is
    *     possible to get fractional advance widths for subpixel positioning
    *     (which is recommended to use).
    *
-   *     If configuration option AF_CONFIG_OPTION_TT_SIZE_METRICS is active,
-   *     TrueType-like metrics are used to make this mode behave similarly
-   *     as in unpatched FreeType versions between 2.4.6 and 2.7.1
+   *     If configuration option `AF_CONFIG_OPTION_TT_SIZE_METRICS` is
+   *     active, TrueType-like metrics are used to make this mode behave
+   *     similarly as in unpatched FreeType versions between 2.4.6 and 2.7.1
    *     (inclusive).
    *
    *   FT_LOAD_TARGET_MONO ::
@@ -3083,6 +3094,12 @@ FT_BEGIN_HEADER
    *     output.  The result is probably unpleasant if the glyph is rendered
    *     in non-monochrome modes.
    *
+   *     Note that for outline fonts only the TrueType font driver has proper
+   *     monochrome hinting support, provided the TTFs contain hints for B/W
+   *     rendering (which most fonts no longer provide).  If these conditions
+   *     are not met it is very likely that you get ugly results at smaller
+   *     sizes.
+   *
    *   FT_LOAD_TARGET_LCD ::
    *     A variant of @FT_LOAD_TARGET_LIGHT optimized for horizontally
    *     decimated LCD displays.
@@ -3092,25 +3109,25 @@ FT_BEGIN_HEADER
    *     decimated LCD displays.
    *
    * @note:
-   *   You should use only _one_ of the FT_LOAD_TARGET_XXX values in your
-   *   `load_flags'.  They can't be ORed.
+   *   You should use only _one_ of the `FT_LOAD_TARGET_XXX` values in your
+   *   `load_flags`.  They can't be ORed.
    *
    *   If @FT_LOAD_RENDER is also set, the glyph is rendered in the
    *   corresponding mode (i.e., the mode that matches the used algorithm
-   *   best).  An exception is FT_LOAD_TARGET_MONO since it implies
+   *   best).  An exception is `FT_LOAD_TARGET_MONO` since it implies
    *   @FT_LOAD_MONOCHROME.
    *
    *   You can use a hinting algorithm that doesn't correspond to the same
-   *   rendering mode.  As an example, it is possible to use the `light'
+   *   rendering mode.  As an example, it is possible to use the 'light'
    *   hinting algorithm and have the results rendered in horizontal LCD
    *   pixel mode, with code like
    *
-   *     {
-   *       FT_Load_Glyph( face, glyph_index,
-   *                      load_flags | FT_LOAD_TARGET_LIGHT );
+   *   ```
+   *     FT_Load_Glyph( face, glyph_index,
+   *                    load_flags | FT_LOAD_TARGET_LIGHT );
    *
-   *       FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
-   *     }
+   *     FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
+   *   ```
    *
    *   In general, you should stick with one rendering mode.  For example,
    *   switching between @FT_LOAD_TARGET_NORMAL and @FT_LOAD_TARGET_MONO
@@ -3142,98 +3159,98 @@ FT_BEGIN_HEADER
 #define FT_LOAD_TARGET_MODE( x )  ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Transform                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set the transformation that is applied to glyph images when they   */
-  /*    are loaded into a glyph slot through @FT_Load_Glyph.               */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: A handle to the source face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    matrix :: A pointer to the transformation's 2x2 matrix.  Use NULL  */
-  /*              for the identity matrix.                                 */
-  /*    delta  :: A pointer to the translation vector.  Use NULL for the   */
-  /*              null vector.                                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The transformation is only applied to scalable image formats after */
-  /*    the glyph has been loaded.  It means that hinting is unaltered by  */
-  /*    the transformation and is performed on the character size given in */
-  /*    the last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes.         */
-  /*                                                                       */
-  /*    Note that this also transforms the `face.glyph.advance' field, but */
-  /*    *not* the values in `face.glyph.metrics'.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Transform
+   *
+   * @description:
+   *   Set the transformation that is applied to glyph images when they are
+   *   loaded into a glyph slot through @FT_Load_Glyph.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @input:
+   *   matrix ::
+   *     A pointer to the transformation's 2x2 matrix.  Use `NULL` for the
+   *     identity matrix.
+   *   delta ::
+   *     A pointer to the translation vector.  Use `NULL` for the null vector.
+   *
+   * @note:
+   *   The transformation is only applied to scalable image formats after the
+   *   glyph has been loaded.  It means that hinting is unaltered by the
+   *   transformation and is performed on the character size given in the
+   *   last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes.
+   *
+   *   Note that this also transforms the `face.glyph.advance` field, but
+   *   **not** the values in `face.glyph.metrics`.
+   */
   FT_EXPORT( void )
   FT_Set_Transform( FT_Face     face,
                     FT_Matrix*  matrix,
                     FT_Vector*  delta );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Render_Mode                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Render modes supported by FreeType~2.  Each mode corresponds to a  */
-  /*    specific type of scanline conversion performed on the outline.     */
-  /*                                                                       */
-  /*    For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode'     */
-  /*    field in the @FT_GlyphSlotRec structure gives the format of the    */
-  /*    returned bitmap.                                                   */
-  /*                                                                       */
-  /*    All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity,   */
-  /*    indicating pixel coverage.  Use linear alpha blending and gamma    */
-  /*    correction to correctly render non-monochrome glyph bitmaps onto a */
-  /*    surface; see @FT_Render_Glyph.                                     */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_RENDER_MODE_NORMAL ::                                           */
-  /*      Default render mode; it corresponds to 8-bit anti-aliased        */
-  /*      bitmaps.                                                         */
-  /*                                                                       */
-  /*    FT_RENDER_MODE_LIGHT ::                                            */
-  /*      This is equivalent to @FT_RENDER_MODE_NORMAL.  It is only        */
-  /*      defined as a separate value because render modes are also used   */
-  /*      indirectly to define hinting algorithm selectors.  See           */
-  /*      @FT_LOAD_TARGET_XXX for details.                                 */
-  /*                                                                       */
-  /*    FT_RENDER_MODE_MONO ::                                             */
-  /*      This mode corresponds to 1-bit bitmaps (with 2~levels of         */
-  /*      opacity).                                                        */
-  /*                                                                       */
-  /*    FT_RENDER_MODE_LCD ::                                              */
-  /*      This mode corresponds to horizontal RGB and BGR subpixel         */
-  /*      displays like LCD screens.  It produces 8-bit bitmaps that are   */
-  /*      3~times the width of the original glyph outline in pixels, and   */
-  /*      which use the @FT_PIXEL_MODE_LCD mode.                           */
-  /*                                                                       */
-  /*    FT_RENDER_MODE_LCD_V ::                                            */
-  /*      This mode corresponds to vertical RGB and BGR subpixel displays  */
-  /*      (like PDA screens, rotated LCD displays, etc.).  It produces     */
-  /*      8-bit bitmaps that are 3~times the height of the original        */
-  /*      glyph outline in pixels and use the @FT_PIXEL_MODE_LCD_V mode.   */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Should you define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your      */
-  /*    `ftoption.h', which enables patented ClearType-style rendering,    */
-  /*    the LCD-optimized glyph bitmaps should be filtered to reduce color */
-  /*    fringes inherent to this technology.  You can either set up LCD    */
-  /*    filtering with @FT_Library_SetLcdFilter or @FT_Face_Properties,    */
-  /*    or do the filtering yourself.  The default FreeType LCD rendering  */
-  /*    technology does not require filtering.                             */
-  /*                                                                       */
-  /*    The selected render mode only affects vector glyphs of a font.     */
-  /*    Embedded bitmaps often have a different pixel mode like            */
-  /*    @FT_PIXEL_MODE_MONO.  You can use @FT_Bitmap_Convert to transform  */
-  /*    them into 8-bit pixmaps.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Render_Mode
+   *
+   * @description:
+   *   Render modes supported by FreeType~2.  Each mode corresponds to a
+   *   specific type of scanline conversion performed on the outline.
+   *
+   *   For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode` field
+   *   in the @FT_GlyphSlotRec structure gives the format of the returned
+   *   bitmap.
+   *
+   *   All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity,
+   *   indicating pixel coverage.  Use linear alpha blending and gamma
+   *   correction to correctly render non-monochrome glyph bitmaps onto a
+   *   surface; see @FT_Render_Glyph.
+   *
+   * @values:
+   *   FT_RENDER_MODE_NORMAL ::
+   *     Default render mode; it corresponds to 8-bit anti-aliased bitmaps.
+   *
+   *   FT_RENDER_MODE_LIGHT ::
+   *     This is equivalent to @FT_RENDER_MODE_NORMAL.  It is only defined as
+   *     a separate value because render modes are also used indirectly to
+   *     define hinting algorithm selectors.  See @FT_LOAD_TARGET_XXX for
+   *     details.
+   *
+   *   FT_RENDER_MODE_MONO ::
+   *     This mode corresponds to 1-bit bitmaps (with 2~levels of opacity).
+   *
+   *   FT_RENDER_MODE_LCD ::
+   *     This mode corresponds to horizontal RGB and BGR subpixel displays
+   *     like LCD screens.  It produces 8-bit bitmaps that are 3~times the
+   *     width of the original glyph outline in pixels, and which use the
+   *     @FT_PIXEL_MODE_LCD mode.
+   *
+   *   FT_RENDER_MODE_LCD_V ::
+   *     This mode corresponds to vertical RGB and BGR subpixel displays
+   *     (like PDA screens, rotated LCD displays, etc.).  It produces 8-bit
+   *     bitmaps that are 3~times the height of the original glyph outline in
+   *     pixels and use the @FT_PIXEL_MODE_LCD_V mode.
+   *
+   * @note:
+   *   Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your
+   *   `ftoption.h`, which enables patented ClearType-style rendering, the
+   *   LCD-optimized glyph bitmaps should be filtered to reduce color fringes
+   *   inherent to this technology.  You can either set up LCD filtering with
+   *   @FT_Library_SetLcdFilter or @FT_Face_Properties, or do the filtering
+   *   yourself.  The default FreeType LCD rendering technology does not
+   *   require filtering.
+   *
+   *   The selected render mode only affects vector glyphs of a font.
+   *   Embedded bitmaps often have a different pixel mode like
+   *   @FT_PIXEL_MODE_MONO.  You can use @FT_Bitmap_Convert to transform them
+   *   into 8-bit pixmaps.
+   */
   typedef enum  FT_Render_Mode_
   {
     FT_RENDER_MODE_NORMAL = 0,
@@ -3248,147 +3265,149 @@ FT_BEGIN_HEADER
 
 
   /* these constants are deprecated; use the corresponding */
-  /* `FT_Render_Mode' values instead                       */
+  /* `FT_Render_Mode` values instead                       */
 #define ft_render_mode_normal  FT_RENDER_MODE_NORMAL
 #define ft_render_mode_mono    FT_RENDER_MODE_MONO
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Render_Glyph                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Convert a given glyph image to a bitmap.  It does so by inspecting */
-  /*    the glyph image format, finding the relevant renderer, and         */
-  /*    invoking it.                                                       */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    slot        :: A handle to the glyph slot containing the image to  */
-  /*                   convert.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    render_mode :: The render mode used to render the glyph image into */
-  /*                   a bitmap.  See @FT_Render_Mode for a list of        */
-  /*                   possible values.                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    To get meaningful results, font scaling values must be set with    */
-  /*    functions like @FT_Set_Char_Size before calling `FT_Render_Glyph'. */
-  /*                                                                       */
-  /*    When FreeType outputs a bitmap of a glyph, it really outputs an    */
-  /*    alpha coverage map.  If a pixel is completely covered by a         */
-  /*    filled-in outline, the bitmap contains 0xFF at that pixel, meaning */
-  /*    that 0xFF/0xFF fraction of that pixel is covered, meaning the      */
-  /*    pixel is 100% black (or 0% bright).  If a pixel is only 50%        */
-  /*    covered (value 0x80), the pixel is made 50% black (50% bright or a */
-  /*    middle shade of grey).  0% covered means 0% black (100% bright or  */
-  /*    white).                                                            */
-  /*                                                                       */
-  /*    On high-DPI screens like on smartphones and tablets, the pixels    */
-  /*    are so small that their chance of being completely covered and     */
-  /*    therefore completely black are fairly good.  On the low-DPI        */
-  /*    screens, however, the situation is different.  The pixels are too  */
-  /*    large for most of the details of a glyph and shades of gray are    */
-  /*    the norm rather than the exception.                                */
-  /*                                                                       */
-  /*    This is relevant because all our screens have a second problem:    */
-  /*    they are not linear.  1~+~1 is not~2.  Twice the value does not    */
-  /*    result in twice the brightness.  When a pixel is only 50% covered, */
-  /*    the coverage map says 50% black, and this translates to a pixel    */
-  /*    value of 128 when you use 8~bits per channel (0-255).  However,    */
-  /*    this does not translate to 50% brightness for that pixel on our    */
-  /*    sRGB and gamma~2.2 screens.  Due to their non-linearity, they      */
-  /*    dwell longer in the darks and only a pixel value of about 186      */
-  /*    results in 50% brightness -- 128 ends up too dark on both bright   */
-  /*    and dark backgrounds.  The net result is that dark text looks      */
-  /*    burnt-out, pixely and blotchy on bright background, bright text    */
-  /*    too frail on dark backgrounds, and colored text on colored         */
-  /*    background (for example, red on green) seems to have dark halos or */
-  /*    `dirt' around it.  The situation is especially ugly for diagonal   */
-  /*    stems like in `w' glyph shapes where the quality of FreeType's     */
-  /*    anti-aliasing depends on the correct display of grays.  On         */
-  /*    high-DPI screens where smaller, fully black pixels reign supreme,  */
-  /*    this doesn't matter, but on our low-DPI screens with all the gray  */
-  /*    shades, it does.  0% and 100% brightness are the same things in    */
-  /*    linear and non-linear space, just all the shades in-between        */
-  /*    aren't.                                                            */
-  /*                                                                       */
-  /*    The blending function for placing text over a background is        */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      dst = alpha * src + (1 - alpha) * dst    ,                       */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    which is known as the OVER operator.                               */
-  /*                                                                       */
-  /*    To correctly composite an antialiased pixel of a glyph onto a      */
-  /*    surface,                                                           */
-  /*                                                                       */
-  /*    1. take the foreground and background colors (e.g., in sRGB space) */
-  /*       and apply gamma to get them in a linear space,                  */
-  /*                                                                       */
-  /*    2. use OVER to blend the two linear colors using the glyph pixel   */
-  /*       as the alpha value (remember, the glyph bitmap is an alpha      */
-  /*       coverage bitmap), and                                           */
-  /*                                                                       */
-  /*    3. apply inverse gamma to the blended pixel and write it back to   */
-  /*       the image.                                                      */
-  /*                                                                       */
-  /*    Internal testing at Adobe found that a target inverse gamma of~1.8 */
-  /*    for step~3 gives good results across a wide range of displays with */
-  /*    an sRGB gamma curve or a similar one.                              */
-  /*                                                                       */
-  /*    This process can cost performance.  There is an approximation that */
-  /*    does not need to know about the background color; see              */
-  /*    https://bel.fi/alankila/lcd/ and                                   */
-  /*    https://bel.fi/alankila/lcd/alpcor.html for details.               */
-  /*                                                                       */
-  /*    *ATTENTION*: Linear blending is even more important when dealing   */
-  /*    with subpixel-rendered glyphs to prevent color-fringing!  A        */
-  /*    subpixel-rendered glyph must first be filtered with a filter that  */
-  /*    gives equal weight to the three color primaries and does not       */
-  /*    exceed a sum of 0x100, see section @lcd_filtering.  Then the       */
-  /*    only difference to gray linear blending is that subpixel-rendered  */
-  /*    linear blending is done 3~times per pixel: red foreground subpixel */
-  /*    to red background subpixel and so on for green and blue.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Render_Glyph
+   *
+   * @description:
+   *   Convert a given glyph image to a bitmap.  It does so by inspecting the
+   *   glyph image format, finding the relevant renderer, and invoking it.
+   *
+   * @inout:
+   *   slot ::
+   *     A handle to the glyph slot containing the image to convert.
+   *
+   * @input:
+   *   render_mode ::
+   *     The render mode used to render the glyph image into a bitmap.  See
+   *     @FT_Render_Mode for a list of possible values.
+   *
+   *     If @FT_RENDER_MODE_NORMAL is used, a previous call of @FT_Load_Glyph
+   *     with flag @FT_LOAD_COLOR makes FT_Render_Glyph provide a default
+   *     blending of colored glyph layers associated with the current glyph
+   *     slot (provided the font contains such layers) instead of rendering
+   *     the glyph slot's outline.  This is an experimental feature; see
+   *     @FT_LOAD_COLOR for more information.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   To get meaningful results, font scaling values must be set with
+   *   functions like @FT_Set_Char_Size before calling `FT_Render_Glyph`.
+   *
+   *   When FreeType outputs a bitmap of a glyph, it really outputs an alpha
+   *   coverage map.  If a pixel is completely covered by a filled-in
+   *   outline, the bitmap contains 0xFF at that pixel, meaning that
+   *   0xFF/0xFF fraction of that pixel is covered, meaning the pixel is 100%
+   *   black (or 0% bright).  If a pixel is only 50% covered (value 0x80),
+   *   the pixel is made 50% black (50% bright or a middle shade of grey).
+   *   0% covered means 0% black (100% bright or white).
+   *
+   *   On high-DPI screens like on smartphones and tablets, the pixels are so
+   *   small that their chance of being completely covered and therefore
+   *   completely black are fairly good.  On the low-DPI screens, however,
+   *   the situation is different.  The pixels are too large for most of the
+   *   details of a glyph and shades of gray are the norm rather than the
+   *   exception.
+   *
+   *   This is relevant because all our screens have a second problem: they
+   *   are not linear.  1~+~1 is not~2.  Twice the value does not result in
+   *   twice the brightness.  When a pixel is only 50% covered, the coverage
+   *   map says 50% black, and this translates to a pixel value of 128 when
+   *   you use 8~bits per channel (0-255).  However, this does not translate
+   *   to 50% brightness for that pixel on our sRGB and gamma~2.2 screens.
+   *   Due to their non-linearity, they dwell longer in the darks and only a
+   *   pixel value of about 186 results in 50% brightness -- 128 ends up too
+   *   dark on both bright and dark backgrounds.  The net result is that dark
+   *   text looks burnt-out, pixely and blotchy on bright background, bright
+   *   text too frail on dark backgrounds, and colored text on colored
+   *   background (for example, red on green) seems to have dark halos or
+   *   'dirt' around it.  The situation is especially ugly for diagonal stems
+   *   like in 'w' glyph shapes where the quality of FreeType's anti-aliasing
+   *   depends on the correct display of grays.  On high-DPI screens where
+   *   smaller, fully black pixels reign supreme, this doesn't matter, but on
+   *   our low-DPI screens with all the gray shades, it does.  0% and 100%
+   *   brightness are the same things in linear and non-linear space, just
+   *   all the shades in-between aren't.
+   *
+   *   The blending function for placing text over a background is
+   *
+   *   ```
+   *     dst = alpha * src + (1 - alpha) * dst    ,
+   *   ```
+   *
+   *   which is known as the OVER operator.
+   *
+   *   To correctly composite an antialiased pixel of a glyph onto a surface,
+   *
+   *   1. take the foreground and background colors (e.g., in sRGB space)
+   *      and apply gamma to get them in a linear space,
+   *
+   *   2. use OVER to blend the two linear colors using the glyph pixel
+   *      as the alpha value (remember, the glyph bitmap is an alpha coverage
+   *      bitmap), and
+   *
+   *   3. apply inverse gamma to the blended pixel and write it back to
+   *      the image.
+   *
+   *   Internal testing at Adobe found that a target inverse gamma of~1.8 for
+   *   step~3 gives good results across a wide range of displays with an sRGB
+   *   gamma curve or a similar one.
+   *
+   *   This process can cost performance.  There is an approximation that
+   *   does not need to know about the background color; see
+   *   https://bel.fi/alankila/lcd/ and
+   *   https://bel.fi/alankila/lcd/alpcor.html for details.
+   *
+   *   **ATTENTION**: Linear blending is even more important when dealing
+   *   with subpixel-rendered glyphs to prevent color-fringing!  A
+   *   subpixel-rendered glyph must first be filtered with a filter that
+   *   gives equal weight to the three color primaries and does not exceed a
+   *   sum of 0x100, see section @lcd_rendering.  Then the only difference to
+   *   gray linear blending is that subpixel-rendered linear blending is done
+   *   3~times per pixel: red foreground subpixel to red background subpixel
+   *   and so on for green and blue.
+   */
   FT_EXPORT( FT_Error )
   FT_Render_Glyph( FT_GlyphSlot    slot,
                    FT_Render_Mode  render_mode );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Kerning_Mode                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration to specify the format of kerning values returned by */
-  /*    @FT_Get_Kerning.                                                   */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_KERNING_DEFAULT  :: Return grid-fitted kerning distances in     */
-  /*                           26.6 fractional pixels.                     */
-  /*                                                                       */
-  /*    FT_KERNING_UNFITTED :: Return un-grid-fitted kerning distances in  */
-  /*                           26.6 fractional pixels.                     */
-  /*                                                                       */
-  /*    FT_KERNING_UNSCALED :: Return the kerning vector in original font  */
-  /*                           units.                                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    FT_KERNING_DEFAULT returns full pixel values; it also makes        */
-  /*    FreeType heuristically scale down kerning distances at small ppem  */
-  /*    values so that they don't become too big.                          */
-  /*                                                                       */
-  /*    Both FT_KERNING_DEFAULT and FT_KERNING_UNFITTED use the current    */
-  /*    horizontal scaling factor (as set e.g. with @FT_Set_Char_Size) to  */
-  /*    convert font units to pixels.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Kerning_Mode
+   *
+   * @description:
+   *   An enumeration to specify the format of kerning values returned by
+   *   @FT_Get_Kerning.
+   *
+   * @values:
+   *   FT_KERNING_DEFAULT ::
+   *     Return grid-fitted kerning distances in 26.6 fractional pixels.
+   *
+   *   FT_KERNING_UNFITTED ::
+   *     Return un-grid-fitted kerning distances in 26.6 fractional pixels.
+   *
+   *   FT_KERNING_UNSCALED ::
+   *     Return the kerning vector in original font units.
+   *
+   * @note:
+   *   `FT_KERNING_DEFAULT` returns full pixel values; it also makes FreeType
+   *   heuristically scale down kerning distances at small ppem values so
+   *   that they don't become too big.
+   *
+   *   Both `FT_KERNING_DEFAULT` and `FT_KERNING_UNFITTED` use the current
+   *   horizontal scaling factor (as set e.g. with @FT_Set_Char_Size) to
+   *   convert font units to pixels.
+   */
   typedef enum  FT_Kerning_Mode_
   {
     FT_KERNING_DEFAULT = 0,
@@ -3399,50 +3418,53 @@ FT_BEGIN_HEADER
 
 
   /* these constants are deprecated; use the corresponding */
-  /* `FT_Kerning_Mode' values instead                      */
+  /* `FT_Kerning_Mode` values instead                      */
 #define ft_kerning_default   FT_KERNING_DEFAULT
 #define ft_kerning_unfitted  FT_KERNING_UNFITTED
 #define ft_kerning_unscaled  FT_KERNING_UNSCALED
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Kerning                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the kerning vector between two glyphs of the same face.     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to a source face object.                   */
-  /*                                                                       */
-  /*    left_glyph  :: The index of the left glyph in the kern pair.       */
-  /*                                                                       */
-  /*    right_glyph :: The index of the right glyph in the kern pair.      */
-  /*                                                                       */
-  /*    kern_mode   :: See @FT_Kerning_Mode for more information.          */
-  /*                   Determines the scale and dimension of the returned  */
-  /*                   kerning vector.                                     */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    akerning    :: The kerning vector.  This is either in font units,  */
-  /*                   fractional pixels (26.6 format), or pixels for      */
-  /*                   scalable formats, and in pixels for fixed-sizes     */
-  /*                   formats.                                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only horizontal layouts (left-to-right & right-to-left) are        */
-  /*    supported by this method.  Other layouts, or more sophisticated    */
-  /*    kernings, are out of the scope of this API function -- they can be */
-  /*    implemented through format-specific interfaces.                    */
-  /*                                                                       */
-  /*    Kerning for OpenType fonts implemented in a `GPOS' table is not    */
-  /*    supported; use @FT_HAS_KERNING to find out whether a font has data */
-  /*    that can be extracted with `FT_Get_Kerning'.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Kerning
+   *
+   * @description:
+   *   Return the kerning vector between two glyphs of the same face.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a source face object.
+   *
+   *   left_glyph ::
+   *     The index of the left glyph in the kern pair.
+   *
+   *   right_glyph ::
+   *     The index of the right glyph in the kern pair.
+   *
+   *   kern_mode ::
+   *     See @FT_Kerning_Mode for more information.  Determines the scale and
+   *     dimension of the returned kerning vector.
+   *
+   * @output:
+   *   akerning ::
+   *     The kerning vector.  This is either in font units, fractional pixels
+   *     (26.6 format), or pixels for scalable formats, and in pixels for
+   *     fixed-sizes formats.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Only horizontal layouts (left-to-right & right-to-left) are supported
+   *   by this method.  Other layouts, or more sophisticated kernings, are
+   *   out of the scope of this API function -- they can be implemented
+   *   through format-specific interfaces.
+   *
+   *   Kerning for OpenType fonts implemented in a 'GPOS' table is not
+   *   supported; use @FT_HAS_KERNING to find out whether a font has data
+   *   that can be extracted with `FT_Get_Kerning`.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Kerning( FT_Face     face,
                   FT_UInt     left_glyph,
@@ -3451,39 +3473,42 @@ FT_BEGIN_HEADER
                   FT_Vector  *akerning );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Track_Kerning                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the track kerning for a given face object at a given size.  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: A handle to a source face object.                    */
-  /*                                                                       */
-  /*    point_size :: The point size in 16.16 fractional points.           */
-  /*                                                                       */
-  /*    degree     :: The degree of tightness.  Increasingly negative      */
-  /*                  values represent tighter track kerning, while        */
-  /*                  increasingly positive values represent looser track  */
-  /*                  kerning.  Value zero means no track kerning.         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    akerning   :: The kerning in 16.16 fractional points, to be        */
-  /*                  uniformly applied between all glyphs.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Currently, only the Type~1 font driver supports track kerning,     */
-  /*    using data from AFM files (if attached with @FT_Attach_File or     */
-  /*    @FT_Attach_Stream).                                                */
-  /*                                                                       */
-  /*    Only very few AFM files come with track kerning data; please refer */
-  /*    to Adobe's AFM specification for more details.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Track_Kerning
+   *
+   * @description:
+   *   Return the track kerning for a given face object at a given size.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a source face object.
+   *
+   *   point_size ::
+   *     The point size in 16.16 fractional points.
+   *
+   *   degree ::
+   *     The degree of tightness.  Increasingly negative values represent
+   *     tighter track kerning, while increasingly positive values represent
+   *     looser track kerning.  Value zero means no track kerning.
+   *
+   * @output:
+   *   akerning ::
+   *     The kerning in 16.16 fractional points, to be uniformly applied
+   *     between all glyphs.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Currently, only the Type~1 font driver supports track kerning, using
+   *   data from AFM files (if attached with @FT_Attach_File or
+   *   @FT_Attach_Stream).
+   *
+   *   Only very few AFM files come with track kerning data; please refer to
+   *   Adobe's AFM specification for more details.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Track_Kerning( FT_Face    face,
                         FT_Fixed   point_size,
@@ -3491,45 +3516,46 @@ FT_BEGIN_HEADER
                         FT_Fixed*  akerning );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Glyph_Name                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the ASCII name of a given glyph in a face.  This only     */
-  /*    works for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1.   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to a source face object.                   */
-  /*                                                                       */
-  /*    glyph_index :: The glyph index.                                    */
-  /*                                                                       */
-  /*    buffer_max  :: The maximum number of bytes available in the        */
-  /*                   buffer.                                             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    buffer      :: A pointer to a target buffer where the name is      */
-  /*                   copied to.                                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    An error is returned if the face doesn't provide glyph names or if */
-  /*    the glyph index is invalid.  In all cases of failure, the first    */
-  /*    byte of `buffer' is set to~0 to indicate an empty name.            */
-  /*                                                                       */
-  /*    The glyph name is truncated to fit within the buffer if it is too  */
-  /*    long.  The returned string is always zero-terminated.              */
-  /*                                                                       */
-  /*    Be aware that FreeType reorders glyph indices internally so that   */
-  /*    glyph index~0 always corresponds to the `missing glyph' (called    */
-  /*    `.notdef').                                                        */
-  /*                                                                       */
-  /*    This function always returns an error if the config macro          */
-  /*    `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is not defined in `ftoption.h'.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Glyph_Name
+   *
+   * @description:
+   *   Retrieve the ASCII name of a given glyph in a face.  This only works
+   *   for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a source face object.
+   *
+   *   glyph_index ::
+   *     The glyph index.
+   *
+   *   buffer_max ::
+   *     The maximum number of bytes available in the buffer.
+   *
+   * @output:
+   *   buffer ::
+   *     A pointer to a target buffer where the name is copied to.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   An error is returned if the face doesn't provide glyph names or if the
+   *   glyph index is invalid.  In all cases of failure, the first byte of
+   *   `buffer` is set to~0 to indicate an empty name.
+   *
+   *   The glyph name is truncated to fit within the buffer if it is too
+   *   long.  The returned string is always zero-terminated.
+   *
+   *   Be aware that FreeType reorders glyph indices internally so that glyph
+   *   index~0 always corresponds to the 'missing glyph' (called '.notdef').
+   *
+   *   This function always returns an error if the config macro
+   *   `FT_CONFIG_OPTION_NO_GLYPH_NAMES` is not defined in `ftoption.h`.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Glyph_Name( FT_Face     face,
                      FT_UInt     glyph_index,
@@ -3537,107 +3563,109 @@ FT_BEGIN_HEADER
                      FT_UInt     buffer_max );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Postscript_Name                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the ASCII PostScript name of a given face, if available.  */
-  /*    This only works with PostScript, TrueType, and OpenType fonts.     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the source face object.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A pointer to the face's PostScript name.  NULL if unavailable.     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The returned pointer is owned by the face and is destroyed with    */
-  /*    it.                                                                */
-  /*                                                                       */
-  /*    For variation fonts, this string changes if you select a different */
-  /*    instance, and you have to call `FT_Get_PostScript_Name' again to   */
-  /*    retrieve it.  FreeType follows Adobe TechNote #5902, `Generating   */
-  /*    PostScript Names for Fonts Using OpenType Font Variations'.        */
-  /*                                                                       */
-  /*      https://download.macromedia.com/pub/developer/opentype/tech-notes/5902.AdobePSNameGeneration.html */
-  /*                                                                       */
-  /*    [Since 2.9] Special PostScript names for named instances are only  */
-  /*    returned if the named instance is set with @FT_Set_Named_Instance  */
-  /*    (and the font has corresponding entries in its `fvar' table).  If  */
-  /*    @FT_IS_VARIATION returns true, the algorithmically derived         */
-  /*    PostScript name is provided, not looking up special entries for    */
-  /*    named instances.                                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Postscript_Name
+   *
+   * @description:
+   *   Retrieve the ASCII PostScript name of a given face, if available.
+   *   This only works with PostScript, TrueType, and OpenType fonts.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @return:
+   *   A pointer to the face's PostScript name.  `NULL` if unavailable.
+   *
+   * @note:
+   *   The returned pointer is owned by the face and is destroyed with it.
+   *
+   *   For variation fonts, this string changes if you select a different
+   *   instance, and you have to call `FT_Get_PostScript_Name` again to
+   *   retrieve it.  FreeType follows Adobe TechNote #5902, 'Generating
+   *   PostScript Names for Fonts Using OpenType Font Variations'.
+   *
+   *     https://download.macromedia.com/pub/developer/opentype/tech-notes/5902.AdobePSNameGeneration.html
+   *
+   *   [Since 2.9] Special PostScript names for named instances are only
+   *   returned if the named instance is set with @FT_Set_Named_Instance (and
+   *   the font has corresponding entries in its 'fvar' table).  If
+   *   @FT_IS_VARIATION returns true, the algorithmically derived PostScript
+   *   name is provided, not looking up special entries for named instances.
+   */
   FT_EXPORT( const char* )
   FT_Get_Postscript_Name( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Select_Charmap                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Select a given charmap by its encoding tag (as listed in           */
-  /*    `freetype.h').                                                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face     :: A handle to the source face object.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    encoding :: A handle to the selected encoding.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function returns an error if no charmap in the face           */
-  /*    corresponds to the encoding queried here.                          */
-  /*                                                                       */
-  /*    Because many fonts contain more than a single cmap for Unicode     */
-  /*    encoding, this function has some special code to select the one    */
-  /*    that covers Unicode best (`best' in the sense that a UCS-4 cmap is */
-  /*    preferred to a UCS-2 cmap).  It is thus preferable to              */
-  /*    @FT_Set_Charmap in this case.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Select_Charmap
+   *
+   * @description:
+   *   Select a given charmap by its encoding tag (as listed in
+   *   `freetype.h`).
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @input:
+   *   encoding ::
+   *     A handle to the selected encoding.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function returns an error if no charmap in the face corresponds
+   *   to the encoding queried here.
+   *
+   *   Because many fonts contain more than a single cmap for Unicode
+   *   encoding, this function has some special code to select the one that
+   *   covers Unicode best ('best' in the sense that a UCS-4 cmap is
+   *   preferred to a UCS-2 cmap).  It is thus preferable to @FT_Set_Charmap
+   *   in this case.
+   */
   FT_EXPORT( FT_Error )
   FT_Select_Charmap( FT_Face      face,
                      FT_Encoding  encoding );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Charmap                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Select a given charmap for character code to glyph index mapping.  */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face    :: A handle to the source face object.                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    charmap :: A handle to the selected charmap.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function returns an error if the charmap is not part of       */
-  /*    the face (i.e., if it is not listed in the `face->charmaps'        */
-  /*    table).                                                            */
-  /*                                                                       */
-  /*    It also fails if an OpenType type~14 charmap is selected (which    */
-  /*    doesn't map character codes to glyph indices at all).              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Charmap
+   *
+   * @description:
+   *   Select a given charmap for character code to glyph index mapping.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @input:
+   *   charmap ::
+   *     A handle to the selected charmap.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function returns an error if the charmap is not part of the face
+   *   (i.e., if it is not listed in the `face->charmaps` table).
+   *
+   *   It also fails if an OpenType type~14 charmap is selected (which
+   *   doesn't map character codes to glyph indices at all).
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Charmap( FT_Face     face,
                   FT_CharMap  charmap );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Get_Charmap_Index
@@ -3651,139 +3679,143 @@ FT_BEGIN_HEADER
    *
    * @return:
    *   The index into the array of character maps within the face to which
-   *   `charmap' belongs.  If an error occurs, -1 is returned.
+   *   `charmap` belongs.  If an error occurs, -1 is returned.
    *
    */
   FT_EXPORT( FT_Int )
   FT_Get_Charmap_Index( FT_CharMap  charmap );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Char_Index                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the glyph index of a given character code.  This function   */
-  /*    uses the currently selected charmap to do the mapping.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the source face object.                    */
-  /*                                                                       */
-  /*    charcode :: The character code.                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The glyph index.  0~means `undefined character code'.              */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If you use FreeType to manipulate the contents of font files       */
-  /*    directly, be aware that the glyph index returned by this function  */
-  /*    doesn't always correspond to the internal indices used within the  */
-  /*    file.  This is done to ensure that value~0 always corresponds to   */
-  /*    the `missing glyph'.  If the first glyph is not named `.notdef',   */
-  /*    then for Type~1 and Type~42 fonts, `.notdef' will be moved into    */
-  /*    the glyph ID~0 position, and whatever was there will be moved to   */
-  /*    the position `.notdef' had.  For Type~1 fonts, if there is no      */
-  /*    `.notdef' glyph at all, then one will be created at index~0 and    */
-  /*    whatever was there will be moved to the last index -- Type~42      */
-  /*    fonts are considered invalid under this condition.                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Char_Index
+   *
+   * @description:
+   *   Return the glyph index of a given character code.  This function uses
+   *   the currently selected charmap to do the mapping.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   charcode ::
+   *     The character code.
+   *
+   * @return:
+   *   The glyph index.  0~means 'undefined character code'.
+   *
+   * @note:
+   *   If you use FreeType to manipulate the contents of font files directly,
+   *   be aware that the glyph index returned by this function doesn't always
+   *   correspond to the internal indices used within the file.  This is done
+   *   to ensure that value~0 always corresponds to the 'missing glyph'.  If
+   *   the first glyph is not named '.notdef', then for Type~1 and Type~42
+   *   fonts, '.notdef' will be moved into the glyph ID~0 position, and
+   *   whatever was there will be moved to the position '.notdef' had.  For
+   *   Type~1 fonts, if there is no '.notdef' glyph at all, then one will be
+   *   created at index~0 and whatever was there will be moved to the last
+   *   index -- Type~42 fonts are considered invalid under this condition.
+   */
   FT_EXPORT( FT_UInt )
   FT_Get_Char_Index( FT_Face   face,
                      FT_ULong  charcode );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_First_Char                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the first character code in the current charmap of a given  */
-  /*    face, together with its corresponding glyph index.                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face    :: A handle to the source face object.                     */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    agindex :: Glyph index of first character code.  0~if charmap is   */
-  /*               empty.                                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The charmap's first character code.                                */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You should use this function together with @FT_Get_Next_Char to    */
-  /*    parse all character codes available in a given charmap.  The code  */
-  /*    should look like this:                                             */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      FT_ULong  charcode;                                              */
-  /*      FT_UInt   gindex;                                                */
-  /*                                                                       */
-  /*                                                                       */
-  /*      charcode = FT_Get_First_Char( face, &gindex );                   */
-  /*      while ( gindex != 0 )                                            */
-  /*      {                                                                */
-  /*        ... do something with (charcode,gindex) pair ...               */
-  /*                                                                       */
-  /*        charcode = FT_Get_Next_Char( face, charcode, &gindex );        */
-  /*      }                                                                */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Be aware that character codes can have values up to 0xFFFFFFFF;    */
-  /*    this might happen for non-Unicode or malformed cmaps.  However,    */
-  /*    even with regular Unicode encoding, so-called `last resort fonts'  */
-  /*    (using SFNT cmap format 13, see function @FT_Get_CMap_Format)      */
-  /*    normally have entries for all Unicode characters up to 0x1FFFFF,   */
-  /*    which can cause *a lot* of iterations.                             */
-  /*                                                                       */
-  /*    Note that `*agindex' is set to~0 if the charmap is empty.  The     */
-  /*    result itself can be~0 in two cases: if the charmap is empty or    */
-  /*    if the value~0 is the first valid character code.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_First_Char
+   *
+   * @description:
+   *   Return the first character code in the current charmap of a given
+   *   face, together with its corresponding glyph index.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @output:
+   *   agindex ::
+   *     Glyph index of first character code.  0~if charmap is empty.
+   *
+   * @return:
+   *   The charmap's first character code.
+   *
+   * @note:
+   *   You should use this function together with @FT_Get_Next_Char to parse
+   *   all character codes available in a given charmap.  The code should
+   *   look like this:
+   *
+   *   ```
+   *     FT_ULong  charcode;
+   *     FT_UInt   gindex;
+   *
+   *
+   *     charcode = FT_Get_First_Char( face, &gindex );
+   *     while ( gindex != 0 )
+   *     {
+   *       ... do something with (charcode,gindex) pair ...
+   *
+   *       charcode = FT_Get_Next_Char( face, charcode, &gindex );
+   *     }
+   *   ```
+   *
+   *   Be aware that character codes can have values up to 0xFFFFFFFF; this
+   *   might happen for non-Unicode or malformed cmaps.  However, even with
+   *   regular Unicode encoding, so-called 'last resort fonts' (using SFNT
+   *   cmap format 13, see function @FT_Get_CMap_Format) normally have
+   *   entries for all Unicode characters up to 0x1FFFFF, which can cause *a
+   *   lot* of iterations.
+   *
+   *   Note that `*agindex` is set to~0 if the charmap is empty.  The result
+   *   itself can be~0 in two cases: if the charmap is empty or if the
+   *   value~0 is the first valid character code.
+   */
   FT_EXPORT( FT_ULong )
   FT_Get_First_Char( FT_Face   face,
                      FT_UInt  *agindex );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Next_Char                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the next character code in the current charmap of a given   */
-  /*    face following the value `char_code', as well as the corresponding */
-  /*    glyph index.                                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face      :: A handle to the source face object.                   */
-  /*                                                                       */
-  /*    char_code :: The starting character code.                          */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    agindex   :: Glyph index of next character code.  0~if charmap     */
-  /*                 is empty.                                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The charmap's next character code.                                 */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You should use this function with @FT_Get_First_Char to walk       */
-  /*    over all character codes available in a given charmap.  See the    */
-  /*    note for that function for a simple code example.                  */
-  /*                                                                       */
-  /*    Note that `*agindex' is set to~0 when there are no more codes in   */
-  /*    the charmap.                                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Next_Char
+   *
+   * @description:
+   *   Return the next character code in the current charmap of a given face
+   *   following the value `char_code`, as well as the corresponding glyph
+   *   index.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   char_code ::
+   *     The starting character code.
+   *
+   * @output:
+   *   agindex ::
+   *     Glyph index of next character code.  0~if charmap is empty.
+   *
+   * @return:
+   *   The charmap's next character code.
+   *
+   * @note:
+   *   You should use this function with @FT_Get_First_Char to walk over all
+   *   character codes available in a given charmap.  See the note for that
+   *   function for a simple code example.
+   *
+   *   Note that `*agindex` is set to~0 when there are no more codes in the
+   *   charmap.
+   */
   FT_EXPORT( FT_ULong )
   FT_Get_Next_Char( FT_Face    face,
                     FT_ULong   char_code,
                     FT_UInt   *agindex );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Face_Properties
@@ -3791,27 +3823,26 @@ FT_BEGIN_HEADER
    * @description:
    *   Set or override certain (library or module-wide) properties on a
    *   face-by-face basis.  Useful for finer-grained control and avoiding
-   *   locks on shared structures (threads can modify their own faces as
-   *   they see fit).
+   *   locks on shared structures (threads can modify their own faces as they
+   *   see fit).
    *
-   *   Contrary to @FT_Property_Set, this function uses @FT_Parameter so
-   *   that you can pass multiple properties to the target face in one call.
-   *   Note that only a subset of the available properties can be
-   *   controlled.
+   *   Contrary to @FT_Property_Set, this function uses @FT_Parameter so that
+   *   you can pass multiple properties to the target face in one call.  Note
+   *   that only a subset of the available properties can be controlled.
    *
    *   * @FT_PARAM_TAG_STEM_DARKENING (stem darkening, corresponding to the
-   *     property `no-stem-darkening' provided by the `autofit', `cff',
-   *     `type1', and `t1cid' modules; see @no-stem-darkening).
+   *     property `no-stem-darkening` provided by the 'autofit', 'cff',
+   *     'type1', and 't1cid' modules; see @no-stem-darkening).
    *
    *   * @FT_PARAM_TAG_LCD_FILTER_WEIGHTS (LCD filter weights, corresponding
    *     to function @FT_Library_SetLcdFilterWeights).
    *
    *   * @FT_PARAM_TAG_RANDOM_SEED (seed value for the CFF, Type~1, and CID
-   *     `random' operator, corresponding to the `random-seed' property
-   *     provided by the `cff', `type1', and `t1cid' modules; see
+   *     'random' operator, corresponding to the `random-seed` property
+   *     provided by the 'cff', 'type1', and 't1cid' modules; see
    *     @random-seed).
    *
-   *   Pass NULL as `data' in @FT_Parameter for a given tag to reset the
+   *   Pass `NULL` as `data` in @FT_Parameter for a given tag to reset the
    *   option and use the library or module default again.
    *
    * @input:
@@ -3822,17 +3853,17 @@ FT_BEGIN_HEADER
    *     The number of properties that follow.
    *
    *   properties ::
-   *     A handle to an @FT_Parameter array with `num_properties' elements.
+   *     A handle to an @FT_Parameter array with `num_properties` elements.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
-   * @note:
-   *   Here an example that sets three properties.  You must define
-   *   FT_CONFIG_OPTION_SUBPIXEL_RENDERING to make the LCD filter examples
+   * @example:
+   *   Here is an example that sets three properties.  You must define
+   *   `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` to make the LCD filter examples
    *   work.
    *
-   *   {
+   *   ```
    *     FT_Parameter         property1;
    *     FT_Bool              darken_stems = 1;
    *
@@ -3858,11 +3889,11 @@ FT_BEGIN_HEADER
    *     property3.data = &random_seed;
    *
    *     FT_Face_Properties( face, 3, properties );
-   *   }
+   *   ```
    *
    *   The next example resets a single property to its default value.
    *
-   *   {
+   *   ```
    *     FT_Parameter  property;
    *
    *
@@ -3870,7 +3901,7 @@ FT_BEGIN_HEADER
    *     property.data = NULL;
    *
    *     FT_Face_Properties( face, 1, &property );
-   *   }
+   *   ```
    *
    * @since:
    *   2.8
@@ -3882,37 +3913,40 @@ FT_BEGIN_HEADER
                       FT_Parameter*  properties );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Name_Index                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the glyph index of a given glyph name.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: A handle to the source face object.                  */
-  /*                                                                       */
-  /*    glyph_name :: The glyph name.                                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The glyph index.  0~means `undefined character code'.              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Name_Index
+   *
+   * @description:
+   *   Return the glyph index of a given glyph name.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   glyph_name ::
+   *     The glyph name.
+   *
+   * @return:
+   *   The glyph index.  0~means 'undefined character code'.
+   */
   FT_EXPORT( FT_UInt )
   FT_Get_Name_Index( FT_Face     face,
                      FT_String*  glyph_name );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
-   * @macro:
+   * @enum:
    *   FT_SUBGLYPH_FLAG_XXX
    *
    * @description:
-   *   A list of constants describing subglyphs.  Please refer to the
-   *   `glyf' table description in the OpenType specification for the
-   *   meaning of the various flags (which get synthesized for
-   *   non-OpenType subglyphs).
+   *   A list of constants describing subglyphs.  Please refer to the 'glyf'
+   *   table description in the OpenType specification for the meaning of the
+   *   various flags (which get synthesized for non-OpenType subglyphs).
+   *
+   *     https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description
    *
    * @values:
    *   FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS ::
@@ -3933,15 +3967,15 @@ FT_BEGIN_HEADER
 #define FT_SUBGLYPH_FLAG_USE_MY_METRICS      0x200
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
-   * @func:
+   * @function:
    *   FT_Get_SubGlyph_Info
    *
    * @description:
    *   Retrieve a description of a given subglyph.  Only use it if
-   *   `glyph->format' is @FT_GLYPH_FORMAT_COMPOSITE; an error is
-   *   returned otherwise.
+   *   `glyph->format` is @FT_GLYPH_FORMAT_COMPOSITE; an error is returned
+   *   otherwise.
    *
    * @input:
    *   glyph ::
@@ -3949,7 +3983,7 @@ FT_BEGIN_HEADER
    *
    *   sub_index ::
    *     The index of the subglyph.  Must be less than
-   *     `glyph->num_subglyphs'.
+   *     `glyph->num_subglyphs`.
    *
    * @output:
    *   p_index ::
@@ -3971,10 +4005,12 @@ FT_BEGIN_HEADER
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *   The values of `*p_arg1', `*p_arg2', and `*p_transform' must be
-   *   interpreted depending on the flags returned in `*p_flags'.  See the
+   *   The values of `*p_arg1`, `*p_arg2`, and `*p_transform` must be
+   *   interpreted depending on the flags returned in `*p_flags`.  See the
    *   OpenType specification for details.
    *
+   *     https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description
+   *
    */
   FT_EXPORT( FT_Error )
   FT_Get_SubGlyph_Info( FT_GlyphSlot  glyph,
@@ -3986,59 +4022,228 @@ FT_BEGIN_HEADER
                         FT_Matrix    *p_transform );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_FSTYPE_XXX                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit flags used in the `fsType' field of the OS/2 table   */
-  /*    in a TrueType or OpenType font and the `FSType' entry in a         */
-  /*    PostScript font.  These bit flags are returned by                  */
-  /*    @FT_Get_FSType_Flags; they inform client applications of embedding */
-  /*    and subsetting restrictions associated with a font.                */
-  /*                                                                       */
-  /*    See                                                                */
-  /*    https://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolicies.pdf */
-  /*    for more details.                                                  */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_FSTYPE_INSTALLABLE_EMBEDDING ::                                 */
-  /*      Fonts with no fsType bit set may be embedded and permanently     */
-  /*      installed on the remote system by an application.                */
-  /*                                                                       */
-  /*    FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING ::                          */
-  /*      Fonts that have only this bit set must not be modified, embedded */
-  /*      or exchanged in any manner without first obtaining permission of */
-  /*      the font software copyright owner.                               */
-  /*                                                                       */
-  /*    FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING ::                           */
-  /*      The font may be embedded and temporarily loaded on the remote    */
-  /*      system.  Documents containing Preview & Print fonts must be      */
-  /*      opened `read-only'; no edits can be applied to the document.     */
-  /*                                                                       */
-  /*    FT_FSTYPE_EDITABLE_EMBEDDING ::                                    */
-  /*      The font may be embedded but must only be installed temporarily  */
-  /*      on other systems.  In contrast to Preview & Print fonts,         */
-  /*      documents containing editable fonts may be opened for reading,   */
-  /*      editing is permitted, and changes may be saved.                  */
-  /*                                                                       */
-  /*    FT_FSTYPE_NO_SUBSETTING ::                                         */
-  /*      The font may not be subsetted prior to embedding.                */
-  /*                                                                       */
-  /*    FT_FSTYPE_BITMAP_EMBEDDING_ONLY ::                                 */
-  /*      Only bitmaps contained in the font may be embedded; no outline   */
-  /*      data may be embedded.  If there are no bitmaps available in the  */
-  /*      font, then the font is unembeddable.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The flags are ORed together, thus more than a single value can be  */
-  /*    returned.                                                          */
-  /*                                                                       */
-  /*    While the `fsType' flags can indicate that a font may be embedded, */
-  /*    a license with the font vendor may be separately required to use   */
-  /*    the font in this way.                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   layer_management
+   *
+   * @title:
+   *   Glyph Layer Management
+   *
+   * @abstract:
+   *   Retrieving and manipulating OpenType's 'COLR' table data.
+   *
+   * @description:
+   *   The functions described here allow access of colored glyph layer data
+   *   in OpenType's 'COLR' tables.
+   */
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_LayerIterator
+   *
+   * @description:
+   *   This iterator object is needed for @FT_Get_Color_Glyph_Layer.
+   *
+   * @fields:
+   *   num_layers ::
+   *     The number of glyph layers for the requested glyph index.  Will be
+   *     set by @FT_Get_Color_Glyph_Layer.
+   *
+   *   layer ::
+   *     The current layer.  Will be set by @FT_Get_Color_Glyph_Layer.
+   *
+   *   p ::
+   *     An opaque pointer into 'COLR' table data.  The caller must set this
+   *     to `NULL` before the first call of @FT_Get_Color_Glyph_Layer.
+   */
+  typedef struct  FT_LayerIterator_
+  {
+    FT_UInt   num_layers;
+    FT_UInt   layer;
+    FT_Byte*  p;
+
+  } FT_LayerIterator;
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Color_Glyph_Layer
+   *
+   * @description:
+   *   This is an interface to the 'COLR' table in OpenType fonts to
+   *   iteratively retrieve the colored glyph layers associated with the
+   *   current glyph slot.
+   *
+   *     https://docs.microsoft.com/en-us/typography/opentype/spec/colr
+   *
+   *   The glyph layer data for a given glyph index, if present, provides an
+   *   alternative, multi-colour glyph representation: Instead of rendering
+   *   the outline or bitmap with the given glyph index, glyphs with the
+   *   indices and colors returned by this function are rendered layer by
+   *   layer.
+   *
+   *   The returned elements are ordered in the z~direction from bottom to
+   *   top; the 'n'th element should be rendered with the associated palette
+   *   color and blended on top of the already rendered layers (elements 0,
+   *   1, ..., n-1).
+   *
+   * @input:
+   *   face ::
+   *     A handle to the parent face object.
+   *
+   *   base_glyph ::
+   *     The glyph index the colored glyph layers are associated with.
+   *
+   * @inout:
+   *   iterator ::
+   *     An @FT_LayerIterator object.  For the first call you should set
+   *     `iterator->p` to `NULL`.  For all following calls, simply use the
+   *     same object again.
+   *
+   * @output:
+   *   aglyph_index ::
+   *     The glyph index of the current layer.
+   *
+   *   acolor_index ::
+   *     The color index into the font face's color palette of the current
+   *     layer.  The value 0xFFFF is special; it doesn't reference a palette
+   *     entry but indicates that the text foreground color should be used
+   *     instead (to be set up by the application outside of FreeType).
+   *
+   *     The color palette can be retrieved with @FT_Palette_Select.
+   *
+   * @return:
+   *   Value~1 if everything is OK.  If there are no more layers (or if there
+   *   are no layers at all), value~0 gets returned.  In case of an error,
+   *   value~0 is returned also.
+   *
+   * @note:
+   *   This function is necessary if you want to handle glyph layers by
+   *   yourself.  In particular, functions that operate with @FT_GlyphRec
+   *   objects (like @FT_Get_Glyph or @FT_Glyph_To_Bitmap) don't have access
+   *   to this information.
+   *
+   *   Note that @FT_Render_Glyph is able to handle colored glyph layers
+   *   automatically if the @FT_LOAD_COLOR flag is passed to a previous call
+   *   to @FT_Load_Glyph.  [This is an experimental feature.]
+   *
+   * @example:
+   *   ```
+   *     FT_Color*         palette;
+   *     FT_LayerIterator  iterator;
+   *
+   *     FT_Bool  have_layers;
+   *     FT_UInt  layer_glyph_index;
+   *     FT_UInt  layer_color_index;
+   *
+   *
+   *     error = FT_Palette_Select( face, palette_index, &palette );
+   *     if ( error )
+   *       palette = NULL;
+   *
+   *     iterator.p  = NULL;
+   *     have_layers = FT_Get_Color_Glyph_Layer( face,
+   *                                             glyph_index,
+   *                                             &layer_glyph_index,
+   *                                             &layer_color_index,
+   *                                             &iterator );
+   *
+   *     if ( palette && have_layers )
+   *     {
+   *       do
+   *       {
+   *         FT_Color  layer_color;
+   *
+   *
+   *         if ( layer_color_index == 0xFFFF )
+   *           layer_color = text_foreground_color;
+   *         else
+   *           layer_color = palette[layer_color_index];
+   *
+   *         // Load and render glyph `layer_glyph_index', then
+   *         // blend resulting pixmap (using color `layer_color')
+   *         // with previously created pixmaps.
+   *
+   *       } while ( FT_Get_Color_Glyph_Layer( face,
+   *                                           glyph_index,
+   *                                           &layer_glyph_index,
+   *                                           &layer_color_index,
+   *                                           &iterator ) );
+   *     }
+   *   ```
+   */
+  FT_EXPORT( FT_Bool )
+  FT_Get_Color_Glyph_Layer( FT_Face            face,
+                            FT_UInt            base_glyph,
+                            FT_UInt           *aglyph_index,
+                            FT_UInt           *acolor_index,
+                            FT_LayerIterator*  iterator );
+
+
+  /**************************************************************************
+   *
+   * @section:
+   *   base_interface
+   *
+   */
+
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_FSTYPE_XXX
+   *
+   * @description:
+   *   A list of bit flags used in the `fsType` field of the OS/2 table in a
+   *   TrueType or OpenType font and the `FSType` entry in a PostScript font.
+   *   These bit flags are returned by @FT_Get_FSType_Flags; they inform
+   *   client applications of embedding and subsetting restrictions
+   *   associated with a font.
+   *
+   *   See
+   *   https://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolicies.pdf
+   *   for more details.
+   *
+   * @values:
+   *   FT_FSTYPE_INSTALLABLE_EMBEDDING ::
+   *     Fonts with no fsType bit set may be embedded and permanently
+   *     installed on the remote system by an application.
+   *
+   *   FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING ::
+   *     Fonts that have only this bit set must not be modified, embedded or
+   *     exchanged in any manner without first obtaining permission of the
+   *     font software copyright owner.
+   *
+   *   FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING ::
+   *     The font may be embedded and temporarily loaded on the remote
+   *     system.  Documents containing Preview & Print fonts must be opened
+   *     'read-only'; no edits can be applied to the document.
+   *
+   *   FT_FSTYPE_EDITABLE_EMBEDDING ::
+   *     The font may be embedded but must only be installed temporarily on
+   *     other systems.  In contrast to Preview & Print fonts, documents
+   *     containing editable fonts may be opened for reading, editing is
+   *     permitted, and changes may be saved.
+   *
+   *   FT_FSTYPE_NO_SUBSETTING ::
+   *     The font may not be subsetted prior to embedding.
+   *
+   *   FT_FSTYPE_BITMAP_EMBEDDING_ONLY ::
+   *     Only bitmaps contained in the font may be embedded; no outline data
+   *     may be embedded.  If there are no bitmaps available in the font,
+   *     then the font is unembeddable.
+   *
+   * @note:
+   *   The flags are ORed together, thus more than a single value can be
+   *   returned.
+   *
+   *   While the `fsType` flags can indicate that a font may be embedded, a
+   *   license with the font vendor may be separately required to use the
+   *   font in this way.
+   */
 #define FT_FSTYPE_INSTALLABLE_EMBEDDING         0x0000
 #define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING  0x0002
 #define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING   0x0004
@@ -4047,548 +4252,563 @@ FT_BEGIN_HEADER
 #define FT_FSTYPE_BITMAP_EMBEDDING_ONLY         0x0200
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_FSType_Flags                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the `fsType' flags for a font.                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the source face object.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The `fsType' flags, see @FT_FSTYPE_XXX.                            */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Use this function rather than directly reading the `fs_type' field */
-  /*    in the @PS_FontInfoRec structure, which is only guaranteed to      */
-  /*    return the correct results for Type~1 fonts.                       */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.8                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_FSType_Flags
+   *
+   * @description:
+   *   Return the `fsType` flags for a font.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @return:
+   *   The `fsType` flags, see @FT_FSTYPE_XXX.
+   *
+   * @note:
+   *   Use this function rather than directly reading the `fs_type` field in
+   *   the @PS_FontInfoRec structure, which is only guaranteed to return the
+   *   correct results for Type~1 fonts.
+   *
+   * @since:
+   *   2.3.8
+   */
   FT_EXPORT( FT_UShort )
   FT_Get_FSType_Flags( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    glyph_variants                                                     */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Unicode Variation Sequences                                        */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    The FreeType~2 interface to Unicode Variation Sequences (UVS),     */
-  /*    using the SFNT cmap format~14.                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Many characters, especially for CJK scripts, have variant forms.   */
-  /*    They are a sort of grey area somewhere between being totally       */
-  /*    irrelevant and semantically distinct; for this reason, the Unicode */
-  /*    consortium decided to introduce Variation Sequences (VS),          */
-  /*    consisting of a Unicode base character and a variation selector    */
-  /*    instead of further extending the already huge number of            */
-  /*    characters.                                                        */
-  /*                                                                       */
-  /*    Unicode maintains two different sets, namely `Standardized         */
-  /*    Variation Sequences' and registered `Ideographic Variation         */
-  /*    Sequences' (IVS), collected in the `Ideographic Variation          */
-  /*    Database' (IVD).                                                   */
-  /*                                                                       */
-  /*      https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt */
-  /*      https://unicode.org/reports/tr37/                                */
-  /*      https://unicode.org/ivd/                                         */
-  /*                                                                       */
-  /*    To date (January 2017), the character with the most ideographic    */
-  /*    variations is U+9089, having 32 such IVS.                          */
-  /*                                                                       */
-  /*    Three Mongolian Variation Selectors have the values U+180B-U+180D; */
-  /*    256 generic Variation Selectors are encoded in the ranges          */
-  /*    U+FE00-U+FE0F and U+E0100-U+E01EF.  IVS currently use Variation    */
-  /*    Selectors from the range U+E0100-U+E01EF only.                     */
-  /*                                                                       */
-  /*    A VS consists of the base character value followed by a single     */
-  /*    Variation Selector.  For example, to get the first variation of    */
-  /*    U+9089, you have to write the character sequence `U+9089 U+E0100'. */
-  /*                                                                       */
-  /*    Adobe and MS decided to support both standardized and ideographic  */
-  /*    VS with a new cmap subtable (format~14).  It is an odd subtable    */
-  /*    because it is not a mapping of input code points to glyphs, but    */
-  /*    contains lists of all variations supported by the font.            */
-  /*                                                                       */
-  /*    A variation may be either `default' or `non-default' for a given   */
-  /*    font.  A default variation is the one you will get for that code   */
-  /*    point if you look it up in the standard Unicode cmap.  A           */
-  /*    non-default variation is a different glyph.                        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   glyph_variants
+   *
+   * @title:
+   *   Unicode Variation Sequences
+   *
+   * @abstract:
+   *   The FreeType~2 interface to Unicode Variation Sequences (UVS), using
+   *   the SFNT cmap format~14.
+   *
+   * @description:
+   *   Many characters, especially for CJK scripts, have variant forms.  They
+   *   are a sort of grey area somewhere between being totally irrelevant and
+   *   semantically distinct; for this reason, the Unicode consortium decided
+   *   to introduce Variation Sequences (VS), consisting of a Unicode base
+   *   character and a variation selector instead of further extending the
+   *   already huge number of characters.
+   *
+   *   Unicode maintains two different sets, namely 'Standardized Variation
+   *   Sequences' and registered 'Ideographic Variation Sequences' (IVS),
+   *   collected in the 'Ideographic Variation Database' (IVD).
+   *
+   *     https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt
+   *     https://unicode.org/reports/tr37/ https://unicode.org/ivd/
+   *
+   *   To date (January 2017), the character with the most ideographic
+   *   variations is U+9089, having 32 such IVS.
+   *
+   *   Three Mongolian Variation Selectors have the values U+180B-U+180D; 256
+   *   generic Variation Selectors are encoded in the ranges U+FE00-U+FE0F
+   *   and U+E0100-U+E01EF.  IVS currently use Variation Selectors from the
+   *   range U+E0100-U+E01EF only.
+   *
+   *   A VS consists of the base character value followed by a single
+   *   Variation Selector.  For example, to get the first variation of
+   *   U+9089, you have to write the character sequence `U+9089 U+E0100`.
+   *
+   *   Adobe and MS decided to support both standardized and ideographic VS
+   *   with a new cmap subtable (format~14).  It is an odd subtable because
+   *   it is not a mapping of input code points to glyphs, but contains lists
+   *   of all variations supported by the font.
+   *
+   *   A variation may be either 'default' or 'non-default' for a given font.
+   *   A default variation is the one you will get for that code point if you
+   *   look it up in the standard Unicode cmap.  A non-default variation is a
+   *   different glyph.
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_GetCharVariantIndex                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the glyph index of a given character code as modified by    */
-  /*    the variation selector.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face ::                                                            */
-  /*      A handle to the source face object.                              */
-  /*                                                                       */
-  /*    charcode ::                                                        */
-  /*      The character code point in Unicode.                             */
-  /*                                                                       */
-  /*    variantSelector ::                                                 */
-  /*      The Unicode code point of the variation selector.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The glyph index.  0~means either `undefined character code', or    */
-  /*    `undefined selector code', or `no variation selector cmap          */
-  /*    subtable', or `current CharMap is not Unicode'.                    */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If you use FreeType to manipulate the contents of font files       */
-  /*    directly, be aware that the glyph index returned by this function  */
-  /*    doesn't always correspond to the internal indices used within      */
-  /*    the file.  This is done to ensure that value~0 always corresponds  */
-  /*    to the `missing glyph'.                                            */
-  /*                                                                       */
-  /*    This function is only meaningful if                                */
-  /*      a) the font has a variation selector cmap sub table,             */
-  /*    and                                                                */
-  /*      b) the current charmap has a Unicode encoding.                   */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.6                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_GetCharVariantIndex
+   *
+   * @description:
+   *   Return the glyph index of a given character code as modified by the
+   *   variation selector.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   charcode ::
+   *     The character code point in Unicode.
+   *
+   *   variantSelector ::
+   *     The Unicode code point of the variation selector.
+   *
+   * @return:
+   *   The glyph index.  0~means either 'undefined character code', or
+   *   'undefined selector code', or 'no variation selector cmap subtable',
+   *   or 'current CharMap is not Unicode'.
+   *
+   * @note:
+   *   If you use FreeType to manipulate the contents of font files directly,
+   *   be aware that the glyph index returned by this function doesn't always
+   *   correspond to the internal indices used within the file.  This is done
+   *   to ensure that value~0 always corresponds to the 'missing glyph'.
+   *
+   *   This function is only meaningful if
+   *     a) the font has a variation selector cmap sub table, and
+   *     b) the current charmap has a Unicode encoding.
+   *
+   * @since:
+   *   2.3.6
+   */
   FT_EXPORT( FT_UInt )
   FT_Face_GetCharVariantIndex( FT_Face   face,
                                FT_ULong  charcode,
                                FT_ULong  variantSelector );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_GetCharVariantIsDefault                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Check whether this variation of this Unicode character is the one  */
-  /*    to be found in the `cmap'.                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face ::                                                            */
-  /*      A handle to the source face object.                              */
-  /*                                                                       */
-  /*    charcode ::                                                        */
-  /*      The character codepoint in Unicode.                              */
-  /*                                                                       */
-  /*    variantSelector ::                                                 */
-  /*      The Unicode codepoint of the variation selector.                 */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    1~if found in the standard (Unicode) cmap, 0~if found in the       */
-  /*    variation selector cmap, or -1 if it is not a variation.           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function is only meaningful if the font has a variation       */
-  /*    selector cmap subtable.                                            */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.6                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_GetCharVariantIsDefault
+   *
+   * @description:
+   *   Check whether this variation of this Unicode character is the one to
+   *   be found in the charmap.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   charcode ::
+   *     The character codepoint in Unicode.
+   *
+   *   variantSelector ::
+   *     The Unicode codepoint of the variation selector.
+   *
+   * @return:
+   *   1~if found in the standard (Unicode) cmap, 0~if found in the variation
+   *   selector cmap, or -1 if it is not a variation.
+   *
+   * @note:
+   *   This function is only meaningful if the font has a variation selector
+   *   cmap subtable.
+   *
+   * @since:
+   *   2.3.6
+   */
   FT_EXPORT( FT_Int )
   FT_Face_GetCharVariantIsDefault( FT_Face   face,
                                    FT_ULong  charcode,
                                    FT_ULong  variantSelector );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_GetVariantSelectors                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return a zero-terminated list of Unicode variation selectors found */
-  /*    in the font.                                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face ::                                                            */
-  /*      A handle to the source face object.                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A pointer to an array of selector code points, or NULL if there is */
-  /*    no valid variation selector cmap subtable.                         */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The last item in the array is~0; the array is owned by the         */
-  /*    @FT_Face object but can be overwritten or released on the next     */
-  /*    call to a FreeType function.                                       */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.6                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_GetVariantSelectors
+   *
+   * @description:
+   *   Return a zero-terminated list of Unicode variation selectors found in
+   *   the font.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @return:
+   *   A pointer to an array of selector code points, or `NULL` if there is
+   *   no valid variation selector cmap subtable.
+   *
+   * @note:
+   *   The last item in the array is~0; the array is owned by the @FT_Face
+   *   object but can be overwritten or released on the next call to a
+   *   FreeType function.
+   *
+   * @since:
+   *   2.3.6
+   */
   FT_EXPORT( FT_UInt32* )
   FT_Face_GetVariantSelectors( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_GetVariantsOfChar                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return a zero-terminated list of Unicode variation selectors found */
-  /*    for the specified character code.                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face ::                                                            */
-  /*      A handle to the source face object.                              */
-  /*                                                                       */
-  /*    charcode ::                                                        */
-  /*      The character codepoint in Unicode.                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A pointer to an array of variation selector code points that are   */
-  /*    active for the given character, or NULL if the corresponding list  */
-  /*    is empty.                                                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The last item in the array is~0; the array is owned by the         */
-  /*    @FT_Face object but can be overwritten or released on the next     */
-  /*    call to a FreeType function.                                       */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.6                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_GetVariantsOfChar
+   *
+   * @description:
+   *   Return a zero-terminated list of Unicode variation selectors found for
+   *   the specified character code.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   charcode ::
+   *     The character codepoint in Unicode.
+   *
+   * @return:
+   *   A pointer to an array of variation selector code points that are
+   *   active for the given character, or `NULL` if the corresponding list is
+   *   empty.
+   *
+   * @note:
+   *   The last item in the array is~0; the array is owned by the @FT_Face
+   *   object but can be overwritten or released on the next call to a
+   *   FreeType function.
+   *
+   * @since:
+   *   2.3.6
+   */
   FT_EXPORT( FT_UInt32* )
   FT_Face_GetVariantsOfChar( FT_Face   face,
                              FT_ULong  charcode );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_GetCharsOfVariant                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return a zero-terminated list of Unicode character codes found for */
-  /*    the specified variation selector.                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face ::                                                            */
-  /*      A handle to the source face object.                              */
-  /*                                                                       */
-  /*    variantSelector ::                                                 */
-  /*      The variation selector code point in Unicode.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A list of all the code points that are specified by this selector  */
-  /*    (both default and non-default codes are returned) or NULL if there */
-  /*    is no valid cmap or the variation selector is invalid.             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The last item in the array is~0; the array is owned by the         */
-  /*    @FT_Face object but can be overwritten or released on the next     */
-  /*    call to a FreeType function.                                       */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.6                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_GetCharsOfVariant
+   *
+   * @description:
+   *   Return a zero-terminated list of Unicode character codes found for the
+   *   specified variation selector.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   variantSelector ::
+   *     The variation selector code point in Unicode.
+   *
+   * @return:
+   *   A list of all the code points that are specified by this selector
+   *   (both default and non-default codes are returned) or `NULL` if there
+   *   is no valid cmap or the variation selector is invalid.
+   *
+   * @note:
+   *   The last item in the array is~0; the array is owned by the @FT_Face
+   *   object but can be overwritten or released on the next call to a
+   *   FreeType function.
+   *
+   * @since:
+   *   2.3.6
+   */
   FT_EXPORT( FT_UInt32* )
   FT_Face_GetCharsOfVariant( FT_Face   face,
                              FT_ULong  variantSelector );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    computations                                                       */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Computations                                                       */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Crunching fixed numbers and vectors.                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains various functions used to perform            */
-  /*    computations on 16.16 fixed-float numbers or 2d vectors.           */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_MulDiv                                                          */
-  /*    FT_MulFix                                                          */
-  /*    FT_DivFix                                                          */
-  /*    FT_RoundFix                                                        */
-  /*    FT_CeilFix                                                         */
-  /*    FT_FloorFix                                                        */
-  /*    FT_Vector_Transform                                                */
-  /*    FT_Matrix_Multiply                                                 */
-  /*    FT_Matrix_Invert                                                   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   computations
+   *
+   * @title:
+   *   Computations
+   *
+   * @abstract:
+   *   Crunching fixed numbers and vectors.
+   *
+   * @description:
+   *   This section contains various functions used to perform computations
+   *   on 16.16 fixed-float numbers or 2d vectors.
+   *
+   *   **Attention**: Most arithmetic functions take `FT_Long` as arguments.
+   *   For historical reasons, FreeType was designed under the assumption
+   *   that `FT_Long` is a 32-bit integer; results can thus be undefined if
+   *   the arguments don't fit into 32 bits.
+   *
+   * @order:
+   *   FT_MulDiv
+   *   FT_MulFix
+   *   FT_DivFix
+   *   FT_RoundFix
+   *   FT_CeilFix
+   *   FT_FloorFix
+   *   FT_Vector_Transform
+   *   FT_Matrix_Multiply
+   *   FT_Matrix_Invert
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_MulDiv                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute `(a*b)/c' with maximum accuracy, using a 64-bit            */
-  /*    intermediate integer whenever necessary.                           */
-  /*                                                                       */
-  /*    This function isn't necessarily as fast as some processor specific */
-  /*    operations, but is at least completely portable.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The first multiplier.                                         */
-  /*                                                                       */
-  /*    b :: The second multiplier.                                        */
-  /*                                                                       */
-  /*    c :: The divisor.                                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The result of `(a*b)/c'.  This function never traps when trying to */
-  /*    divide by zero; it simply returns `MaxInt' or `MinInt' depending   */
-  /*    on the signs of `a' and `b'.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_MulDiv
+   *
+   * @description:
+   *   Compute `(a*b)/c` with maximum accuracy, using a 64-bit intermediate
+   *   integer whenever necessary.
+   *
+   *   This function isn't necessarily as fast as some processor-specific
+   *   operations, but is at least completely portable.
+   *
+   * @input:
+   *   a ::
+   *     The first multiplier.
+   *
+   *   b ::
+   *     The second multiplier.
+   *
+   *   c ::
+   *     The divisor.
+   *
+   * @return:
+   *   The result of `(a*b)/c`.  This function never traps when trying to
+   *   divide by zero; it simply returns 'MaxInt' or 'MinInt' depending on
+   *   the signs of `a` and `b`.
+   */
   FT_EXPORT( FT_Long )
   FT_MulDiv( FT_Long  a,
              FT_Long  b,
              FT_Long  c );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_MulFix                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute `(a*b)/0x10000' with maximum accuracy.  Its main use is to */
-  /*    multiply a given value by a 16.16 fixed-point factor.              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The first multiplier.                                         */
-  /*                                                                       */
-  /*    b :: The second multiplier.  Use a 16.16 factor here whenever      */
-  /*         possible (see note below).                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The result of `(a*b)/0x10000'.                                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function has been optimized for the case where the absolute   */
-  /*    value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */
-  /*    As this happens mainly when scaling from notional units to         */
-  /*    fractional pixels in FreeType, it resulted in noticeable speed     */
-  /*    improvements between versions 2.x and 1.x.                         */
-  /*                                                                       */
-  /*    As a conclusion, always try to place a 16.16 factor as the         */
-  /*    _second_ argument of this function; this can make a great          */
-  /*    difference.                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_MulFix
+   *
+   * @description:
+   *   Compute `(a*b)/0x10000` with maximum accuracy.  Its main use is to
+   *   multiply a given value by a 16.16 fixed-point factor.
+   *
+   * @input:
+   *   a ::
+   *     The first multiplier.
+   *
+   *   b ::
+   *     The second multiplier.  Use a 16.16 factor here whenever possible
+   *     (see note below).
+   *
+   * @return:
+   *   The result of `(a*b)/0x10000`.
+   *
+   * @note:
+   *   This function has been optimized for the case where the absolute value
+   *   of `a` is less than 2048, and `b` is a 16.16 scaling factor.  As this
+   *   happens mainly when scaling from notional units to fractional pixels
+   *   in FreeType, it resulted in noticeable speed improvements between
+   *   versions 2.x and 1.x.
+   *
+   *   As a conclusion, always try to place a 16.16 factor as the _second_
+   *   argument of this function; this can make a great difference.
+   */
   FT_EXPORT( FT_Long )
   FT_MulFix( FT_Long  a,
              FT_Long  b );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_DivFix                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute `(a*0x10000)/b' with maximum accuracy.  Its main use is to */
-  /*    divide a given value by a 16.16 fixed-point factor.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The numerator.                                                */
-  /*                                                                       */
-  /*    b :: The denominator.  Use a 16.16 factor here.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The result of `(a*0x10000)/b'.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_DivFix
+   *
+   * @description:
+   *   Compute `(a*0x10000)/b` with maximum accuracy.  Its main use is to
+   *   divide a given value by a 16.16 fixed-point factor.
+   *
+   * @input:
+   *   a ::
+   *     The numerator.
+   *
+   *   b ::
+   *     The denominator.  Use a 16.16 factor here.
+   *
+   * @return:
+   *   The result of `(a*0x10000)/b`.
+   */
   FT_EXPORT( FT_Long )
   FT_DivFix( FT_Long  a,
              FT_Long  b );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_RoundFix                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Round a 16.16 fixed number.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The number to be rounded.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    `a' rounded to the nearest 16.16 fixed integer, halfway cases away */
-  /*    from zero.                                                         */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The function uses wrap-around arithmetic.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_RoundFix
+   *
+   * @description:
+   *   Round a 16.16 fixed number.
+   *
+   * @input:
+   *   a ::
+   *     The number to be rounded.
+   *
+   * @return:
+   *   `a` rounded to the nearest 16.16 fixed integer, halfway cases away
+   *   from zero.
+   *
+   * @note:
+   *   The function uses wrap-around arithmetic.
+   */
   FT_EXPORT( FT_Fixed )
   FT_RoundFix( FT_Fixed  a );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_CeilFix                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the smallest following integer of a 16.16 fixed number.    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The number for which the ceiling function is to be computed.  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    `a' rounded towards plus infinity.                                 */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The function uses wrap-around arithmetic.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_CeilFix
+   *
+   * @description:
+   *   Compute the smallest following integer of a 16.16 fixed number.
+   *
+   * @input:
+   *   a ::
+   *     The number for which the ceiling function is to be computed.
+   *
+   * @return:
+   *   `a` rounded towards plus infinity.
+   *
+   * @note:
+   *   The function uses wrap-around arithmetic.
+   */
   FT_EXPORT( FT_Fixed )
   FT_CeilFix( FT_Fixed  a );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_FloorFix                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the largest previous integer of a 16.16 fixed number.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The number for which the floor function is to be computed.    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    `a' rounded towards minus infinity.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_FloorFix
+   *
+   * @description:
+   *   Compute the largest previous integer of a 16.16 fixed number.
+   *
+   * @input:
+   *   a ::
+   *     The number for which the floor function is to be computed.
+   *
+   * @return:
+   *   `a` rounded towards minus infinity.
+   */
   FT_EXPORT( FT_Fixed )
   FT_FloorFix( FT_Fixed  a );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Vector_Transform                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Transform a single vector through a 2x2 matrix.                    */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    vector :: The target vector to transform.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    matrix :: A pointer to the source 2x2 matrix.                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The result is undefined if either `vector' or `matrix' is invalid. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Vector_Transform
+   *
+   * @description:
+   *   Transform a single vector through a 2x2 matrix.
+   *
+   * @inout:
+   *   vector ::
+   *     The target vector to transform.
+   *
+   * @input:
+   *   matrix ::
+   *     A pointer to the source 2x2 matrix.
+   *
+   * @note:
+   *   The result is undefined if either `vector` or `matrix` is invalid.
+   */
   FT_EXPORT( void )
-  FT_Vector_Transform( FT_Vector*        vec,
+  FT_Vector_Transform( FT_Vector*        vector,
                        const FT_Matrix*  matrix );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    version                                                            */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    FreeType Version                                                   */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Functions and macros related to FreeType versions.                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Note that those functions and macros are of limited use because    */
-  /*    even a new release of FreeType with only documentation changes     */
-  /*    increases the version number.                                      */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_Library_Version                                                 */
-  /*                                                                       */
-  /*    FREETYPE_MAJOR                                                     */
-  /*    FREETYPE_MINOR                                                     */
-  /*    FREETYPE_PATCH                                                     */
-  /*                                                                       */
-  /*    FT_Face_CheckTrueTypePatents                                       */
-  /*    FT_Face_SetUnpatentedHinting                                       */
-  /*                                                                       */
-  /*    FREETYPE_XXX                                                       */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   version
+   *
+   * @title:
+   *   FreeType Version
+   *
+   * @abstract:
+   *   Functions and macros related to FreeType versions.
+   *
+   * @description:
+   *   Note that those functions and macros are of limited use because even a
+   *   new release of FreeType with only documentation changes increases the
+   *   version number.
+   *
+   * @order:
+   *   FT_Library_Version
+   *
+   *   FREETYPE_MAJOR
+   *   FREETYPE_MINOR
+   *   FREETYPE_PATCH
+   *
+   *   FT_Face_CheckTrueTypePatents
+   *   FT_Face_SetUnpatentedHinting
+   *
+   */
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FREETYPE_XXX
    *
    * @description:
-   *   These three macros identify the FreeType source code version.
-   *   Use @FT_Library_Version to access them at runtime.
+   *   These three macros identify the FreeType source code version.  Use
+   *   @FT_Library_Version to access them at runtime.
    *
    * @values:
-   *   FREETYPE_MAJOR :: The major version number.
-   *   FREETYPE_MINOR :: The minor version number.
-   *   FREETYPE_PATCH :: The patch level.
+   *   FREETYPE_MAJOR ::
+   *     The major version number.
+   *   FREETYPE_MINOR ::
+   *     The minor version number.
+   *   FREETYPE_PATCH ::
+   *     The patch level.
    *
    * @note:
-   *   The version number of FreeType if built as a dynamic link library
-   *   with the `libtool' package is _not_ controlled by these three
-   *   macros.
+   *   The version number of FreeType if built as a dynamic link library with
+   *   the 'libtool' package is _not_ controlled by these three macros.
    *
    */
 #define FREETYPE_MAJOR  2
-#define FREETYPE_MINOR  9
-#define FREETYPE_PATCH  1
+#define FREETYPE_MINOR  10
+#define FREETYPE_PATCH  0
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Library_Version                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the version of the FreeType library being used.  This is    */
-  /*    useful when dynamically linking to the library, since one cannot   */
-  /*    use the macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and               */
-  /*    @FREETYPE_PATCH.                                                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A source library handle.                                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    amajor  :: The major version number.                               */
-  /*                                                                       */
-  /*    aminor  :: The minor version number.                               */
-  /*                                                                       */
-  /*    apatch  :: The patch version number.                               */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The reason why this function takes a `library' argument is because */
-  /*    certain programs implement library initialization in a custom way  */
-  /*    that doesn't use @FT_Init_FreeType.                                */
-  /*                                                                       */
-  /*    In such cases, the library version might not be available before   */
-  /*    the library object has been created.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Library_Version
+   *
+   * @description:
+   *   Return the version of the FreeType library being used.  This is useful
+   *   when dynamically linking to the library, since one cannot use the
+   *   macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and @FREETYPE_PATCH.
+   *
+   * @input:
+   *   library ::
+   *     A source library handle.
+   *
+   * @output:
+   *   amajor ::
+   *     The major version number.
+   *
+   *   aminor ::
+   *     The minor version number.
+   *
+   *   apatch ::
+   *     The patch version number.
+   *
+   * @note:
+   *   The reason why this function takes a `library` argument is because
+   *   certain programs implement library initialization in a custom way that
+   *   doesn't use @FT_Init_FreeType.
+   *
+   *   In such cases, the library version might not be available before the
+   *   library object has been created.
+   */
   FT_EXPORT( void )
   FT_Library_Version( FT_Library   library,
                       FT_Int      *amajor,
@@ -4596,52 +4816,55 @@ FT_BEGIN_HEADER
                       FT_Int      *apatch );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_CheckTrueTypePatents                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Deprecated, does nothing.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A face handle.                                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Always returns false.                                              */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Since May 2010, TrueType hinting is no longer patented.            */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.5                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_CheckTrueTypePatents
+   *
+   * @description:
+   *   Deprecated, does nothing.
+   *
+   * @input:
+   *   face ::
+   *     A face handle.
+   *
+   * @return:
+   *   Always returns false.
+   *
+   * @note:
+   *   Since May 2010, TrueType hinting is no longer patented.
+   *
+   * @since:
+   *   2.3.5
+   */
   FT_EXPORT( FT_Bool )
   FT_Face_CheckTrueTypePatents( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Face_SetUnpatentedHinting                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Deprecated, does nothing.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face  :: A face handle.                                            */
-  /*                                                                       */
-  /*    value :: New boolean setting.                                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Always returns false.                                              */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Since May 2010, TrueType hinting is no longer patented.            */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.3.5                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Face_SetUnpatentedHinting
+   *
+   * @description:
+   *   Deprecated, does nothing.
+   *
+   * @input:
+   *   face ::
+   *     A face handle.
+   *
+   *   value ::
+   *     New boolean setting.
+   *
+   * @return:
+   *   Always returns false.
+   *
+   * @note:
+   *   Since May 2010, TrueType hinting is no longer patented.
+   *
+   * @since:
+   *   2.3.5
+   */
   FT_EXPORT( FT_Bool )
   FT_Face_SetUnpatentedHinting( FT_Face  face,
                                 FT_Bool  value );
diff --git a/thirdparty/freetype/include/freetype/ftadvanc.h b/thirdparty/freetype/include/freetype/ftadvanc.h
index f78e8b1a9d..95c38f92bd 100644
--- a/thirdparty/freetype/include/freetype/ftadvanc.h
+++ b/thirdparty/freetype/include/freetype/ftadvanc.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftadvanc.h                                                             */
-/*                                                                         */
-/*    Quick computation of advance widths (specification only).            */
-/*                                                                         */
-/*  Copyright 2008-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftadvanc.h
+ *
+ *   Quick computation of advance widths (specification only).
+ *
+ * Copyright (C) 2008-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTADVANC_H_
@@ -56,68 +56,67 @@ FT_BEGIN_HEADER
    */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Const>                                                               */
-  /*    FT_ADVANCE_FLAG_FAST_ONLY                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A bit-flag to be OR-ed with the `flags' parameter of the           */
-  /*    @FT_Get_Advance and @FT_Get_Advances functions.                    */
-  /*                                                                       */
-  /*    If set, it indicates that you want these functions to fail if the  */
-  /*    corresponding hinting mode or font driver doesn't allow for very   */
-  /*    quick advance computation.                                         */
-  /*                                                                       */
-  /*    Typically, glyphs that are either unscaled, unhinted, bitmapped,   */
-  /*    or light-hinted can have their advance width computed very         */
-  /*    quickly.                                                           */
-  /*                                                                       */
-  /*    Normal and bytecode hinted modes that require loading, scaling,    */
-  /*    and hinting of the glyph outline, are extremely slow by            */
-  /*    comparison.                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_ADVANCE_FLAG_FAST_ONLY
+   *
+   * @description:
+   *   A bit-flag to be OR-ed with the `flags` parameter of the
+   *   @FT_Get_Advance and @FT_Get_Advances functions.
+   *
+   *   If set, it indicates that you want these functions to fail if the
+   *   corresponding hinting mode or font driver doesn't allow for very quick
+   *   advance computation.
+   *
+   *   Typically, glyphs that are either unscaled, unhinted, bitmapped, or
+   *   light-hinted can have their advance width computed very quickly.
+   *
+   *   Normal and bytecode hinted modes that require loading, scaling, and
+   *   hinting of the glyph outline, are extremely slow by comparison.
+   */
 #define FT_ADVANCE_FLAG_FAST_ONLY  0x20000000L
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Advance                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the advance value of a given glyph outline in an          */
-  /*    @FT_Face.                                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: The source @FT_Face handle.                          */
-  /*                                                                       */
-  /*    gindex     :: The glyph index.                                     */
-  /*                                                                       */
-  /*    load_flags :: A set of bit flags similar to those used when        */
-  /*                  calling @FT_Load_Glyph, used to determine what kind  */
-  /*                  of advances you need.                                */
-  /* <Output>                                                              */
-  /*    padvance :: The advance value.  If scaling is performed (based on  */
-  /*                the value of `load_flags'), the advance value is in    */
-  /*                16.16 format.  Otherwise, it is in font units.         */
-  /*                                                                       */
-  /*                If @FT_LOAD_VERTICAL_LAYOUT is set, this is the        */
-  /*                vertical advance corresponding to a vertical layout.   */
-  /*                Otherwise, it is the horizontal advance in a           */
-  /*                horizontal layout.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and   */
-  /*    if the corresponding font backend doesn't have a quick way to      */
-  /*    retrieve the advances.                                             */
-  /*                                                                       */
-  /*    A scaled advance is returned in 16.16 format but isn't transformed */
-  /*    by the affine transformation specified by @FT_Set_Transform.       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Advance
+   *
+   * @description:
+   *   Retrieve the advance value of a given glyph outline in an @FT_Face.
+   *
+   * @input:
+   *   face ::
+   *     The source @FT_Face handle.
+   *
+   *   gindex ::
+   *     The glyph index.
+   *
+   *   load_flags ::
+   *     A set of bit flags similar to those used when calling
+   *     @FT_Load_Glyph, used to determine what kind of advances you need.
+   * @output:
+   *   padvance ::
+   *     The advance value.  If scaling is performed (based on the value of
+   *     `load_flags`), the advance value is in 16.16 format.  Otherwise, it
+   *     is in font units.
+   *
+   *     If @FT_LOAD_VERTICAL_LAYOUT is set, this is the vertical advance
+   *     corresponding to a vertical layout.  Otherwise, it is the horizontal
+   *     advance in a horizontal layout.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
+   *   the corresponding font backend doesn't have a quick way to retrieve
+   *   the advances.
+   *
+   *   A scaled advance is returned in 16.16 format but isn't transformed by
+   *   the affine transformation specified by @FT_Set_Transform.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Advance( FT_Face    face,
                   FT_UInt    gindex,
@@ -125,50 +124,52 @@ FT_BEGIN_HEADER
                   FT_Fixed  *padvance );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Advances                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the advance values of several glyph outlines in an        */
-  /*    @FT_Face.                                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: The source @FT_Face handle.                         */
-  /*                                                                       */
-  /*    start       :: The first glyph index.                              */
-  /*                                                                       */
-  /*    count       :: The number of advance values you want to retrieve.  */
-  /*                                                                       */
-  /*    load_flags  :: A set of bit flags similar to those used when       */
-  /*                   calling @FT_Load_Glyph.                             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    padvance :: The advance values.  This array, to be provided by the */
-  /*                caller, must contain at least `count' elements.        */
-  /*                                                                       */
-  /*                If scaling is performed (based on the value of         */
-  /*                `load_flags'), the advance values are in 16.16 format. */
-  /*                Otherwise, they are in font units.                     */
-  /*                                                                       */
-  /*                If @FT_LOAD_VERTICAL_LAYOUT is set, these are the      */
-  /*                vertical advances corresponding to a vertical layout.  */
-  /*                Otherwise, they are the horizontal advances in a       */
-  /*                horizontal layout.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and   */
-  /*    if the corresponding font backend doesn't have a quick way to      */
-  /*    retrieve the advances.                                             */
-  /*                                                                       */
-  /*    Scaled advances are returned in 16.16 format but aren't            */
-  /*    transformed by the affine transformation specified by              */
-  /*    @FT_Set_Transform.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Advances
+   *
+   * @description:
+   *   Retrieve the advance values of several glyph outlines in an @FT_Face.
+   *
+   * @input:
+   *   face ::
+   *     The source @FT_Face handle.
+   *
+   *   start ::
+   *     The first glyph index.
+   *
+   *   count ::
+   *     The number of advance values you want to retrieve.
+   *
+   *   load_flags ::
+   *     A set of bit flags similar to those used when calling
+   *     @FT_Load_Glyph.
+   *
+   * @output:
+   *   padvance ::
+   *     The advance values.  This array, to be provided by the caller, must
+   *     contain at least `count` elements.
+   *
+   *     If scaling is performed (based on the value of `load_flags`), the
+   *     advance values are in 16.16 format.  Otherwise, they are in font
+   *     units.
+   *
+   *     If @FT_LOAD_VERTICAL_LAYOUT is set, these are the vertical advances
+   *     corresponding to a vertical layout.  Otherwise, they are the
+   *     horizontal advances in a horizontal layout.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
+   *   the corresponding font backend doesn't have a quick way to retrieve
+   *   the advances.
+   *
+   *   Scaled advances are returned in 16.16 format but aren't transformed by
+   *   the affine transformation specified by @FT_Set_Transform.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Advances( FT_Face    face,
                    FT_UInt    start,
diff --git a/thirdparty/freetype/include/freetype/ftautoh.h b/thirdparty/freetype/include/freetype/ftautoh.h
deleted file mode 100644
index 2bb675ae46..0000000000
--- a/thirdparty/freetype/include/freetype/ftautoh.h
+++ /dev/null
@@ -1,533 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftautoh.h                                                              */
-/*                                                                         */
-/*    FreeType API for controlling the auto-hinter (specification only).   */
-/*                                                                         */
-/*  Copyright 2012-2017 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef FTAUTOH_H_
-#define FTAUTOH_H_
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
-  /**************************************************************************
-   *
-   * @section:
-   *   auto_hinter
-   *
-   * @title:
-   *   The auto-hinter
-   *
-   * @abstract:
-   *   Controlling the auto-hinting module.
-   *
-   * @description:
-   *   While FreeType's auto-hinter doesn't expose API functions by itself,
-   *   it is possible to control its behaviour with @FT_Property_Set and
-   *   @FT_Property_Get.  The following lists the available properties
-   *   together with the necessary macros and structures.
-   *
-   *   Note that the auto-hinter's module name is `autofitter' for
-   *   historical reasons.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   glyph-to-script-map
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   The auto-hinter provides various script modules to hint glyphs.
-   *   Examples of supported scripts are Latin or CJK.  Before a glyph is
-   *   auto-hinted, the Unicode character map of the font gets examined, and
-   *   the script is then determined based on Unicode character ranges, see
-   *   below.
-   *
-   *   OpenType fonts, however, often provide much more glyphs than
-   *   character codes (small caps, superscripts, ligatures, swashes, etc.),
-   *   to be controlled by so-called `features'.  Handling OpenType features
-   *   can be quite complicated and thus needs a separate library on top of
-   *   FreeType.
-   *
-   *   The mapping between glyph indices and scripts (in the auto-hinter
-   *   sense, see the @FT_AUTOHINTER_SCRIPT_XXX values) is stored as an
-   *   array with `num_glyphs' elements, as found in the font's @FT_Face
-   *   structure.  The `glyph-to-script-map' property returns a pointer to
-   *   this array, which can be modified as needed.  Note that the
-   *   modification should happen before the first glyph gets processed by
-   *   the auto-hinter so that the global analysis of the font shapes
-   *   actually uses the modified mapping.
-   *
-   *   The following example code demonstrates how to access it (omitting
-   *   the error handling).
-   *
-   *   {
-   *     FT_Library                library;
-   *     FT_Face                   face;
-   *     FT_Prop_GlyphToScriptMap  prop;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *     FT_New_Face( library, "foo.ttf", 0, &face );
-   *
-   *     prop.face = face;
-   *
-   *     FT_Property_Get( library, "autofitter",
-   *                               "glyph-to-script-map", &prop );
-   *
-   *     // adjust `prop.map' as needed right here
-   *
-   *     FT_Load_Glyph( face, ..., FT_LOAD_FORCE_AUTOHINT );
-   *   }
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @enum:
-   *   FT_AUTOHINTER_SCRIPT_XXX
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   A list of constants used for the @glyph-to-script-map property to
-   *   specify the script submodule the auto-hinter should use for hinting a
-   *   particular glyph.
-   *
-   * @values:
-   *   FT_AUTOHINTER_SCRIPT_NONE ::
-   *     Don't auto-hint this glyph.
-   *
-   *   FT_AUTOHINTER_SCRIPT_LATIN ::
-   *     Apply the latin auto-hinter.  For the auto-hinter, `latin' is a
-   *     very broad term, including Cyrillic and Greek also since characters
-   *     from those scripts share the same design constraints.
-   *
-   *     By default, characters from the following Unicode ranges are
-   *     assigned to this submodule.
-   *
-   *     {
-   *       U+0020 - U+007F  // Basic Latin (no control characters)
-   *       U+00A0 - U+00FF  // Latin-1 Supplement (no control characters)
-   *       U+0100 - U+017F  // Latin Extended-A
-   *       U+0180 - U+024F  // Latin Extended-B
-   *       U+0250 - U+02AF  // IPA Extensions
-   *       U+02B0 - U+02FF  // Spacing Modifier Letters
-   *       U+0300 - U+036F  // Combining Diacritical Marks
-   *       U+0370 - U+03FF  // Greek and Coptic
-   *       U+0400 - U+04FF  // Cyrillic
-   *       U+0500 - U+052F  // Cyrillic Supplement
-   *       U+1D00 - U+1D7F  // Phonetic Extensions
-   *       U+1D80 - U+1DBF  // Phonetic Extensions Supplement
-   *       U+1DC0 - U+1DFF  // Combining Diacritical Marks Supplement
-   *       U+1E00 - U+1EFF  // Latin Extended Additional
-   *       U+1F00 - U+1FFF  // Greek Extended
-   *       U+2000 - U+206F  // General Punctuation
-   *       U+2070 - U+209F  // Superscripts and Subscripts
-   *       U+20A0 - U+20CF  // Currency Symbols
-   *       U+2150 - U+218F  // Number Forms
-   *       U+2460 - U+24FF  // Enclosed Alphanumerics
-   *       U+2C60 - U+2C7F  // Latin Extended-C
-   *       U+2DE0 - U+2DFF  // Cyrillic Extended-A
-   *       U+2E00 - U+2E7F  // Supplemental Punctuation
-   *       U+A640 - U+A69F  // Cyrillic Extended-B
-   *       U+A720 - U+A7FF  // Latin Extended-D
-   *       U+FB00 - U+FB06  // Alphab. Present. Forms (Latin Ligatures)
-   *      U+1D400 - U+1D7FF // Mathematical Alphanumeric Symbols
-   *      U+1F100 - U+1F1FF // Enclosed Alphanumeric Supplement
-   *     }
-   *
-   *   FT_AUTOHINTER_SCRIPT_CJK ::
-   *     Apply the CJK auto-hinter, covering Chinese, Japanese, Korean, old
-   *     Vietnamese, and some other scripts.
-   *
-   *     By default, characters from the following Unicode ranges are
-   *     assigned to this submodule.
-   *
-   *     {
-   *       U+1100 - U+11FF  // Hangul Jamo
-   *       U+2E80 - U+2EFF  // CJK Radicals Supplement
-   *       U+2F00 - U+2FDF  // Kangxi Radicals
-   *       U+2FF0 - U+2FFF  // Ideographic Description Characters
-   *       U+3000 - U+303F  // CJK Symbols and Punctuation
-   *       U+3040 - U+309F  // Hiragana
-   *       U+30A0 - U+30FF  // Katakana
-   *       U+3100 - U+312F  // Bopomofo
-   *       U+3130 - U+318F  // Hangul Compatibility Jamo
-   *       U+3190 - U+319F  // Kanbun
-   *       U+31A0 - U+31BF  // Bopomofo Extended
-   *       U+31C0 - U+31EF  // CJK Strokes
-   *       U+31F0 - U+31FF  // Katakana Phonetic Extensions
-   *       U+3200 - U+32FF  // Enclosed CJK Letters and Months
-   *       U+3300 - U+33FF  // CJK Compatibility
-   *       U+3400 - U+4DBF  // CJK Unified Ideographs Extension A
-   *       U+4DC0 - U+4DFF  // Yijing Hexagram Symbols
-   *       U+4E00 - U+9FFF  // CJK Unified Ideographs
-   *       U+A960 - U+A97F  // Hangul Jamo Extended-A
-   *       U+AC00 - U+D7AF  // Hangul Syllables
-   *       U+D7B0 - U+D7FF  // Hangul Jamo Extended-B
-   *       U+F900 - U+FAFF  // CJK Compatibility Ideographs
-   *       U+FE10 - U+FE1F  // Vertical forms
-   *       U+FE30 - U+FE4F  // CJK Compatibility Forms
-   *       U+FF00 - U+FFEF  // Halfwidth and Fullwidth Forms
-   *      U+1B000 - U+1B0FF // Kana Supplement
-   *      U+1D300 - U+1D35F // Tai Xuan Hing Symbols
-   *      U+1F200 - U+1F2FF // Enclosed Ideographic Supplement
-   *      U+20000 - U+2A6DF // CJK Unified Ideographs Extension B
-   *      U+2A700 - U+2B73F // CJK Unified Ideographs Extension C
-   *      U+2B740 - U+2B81F // CJK Unified Ideographs Extension D
-   *      U+2F800 - U+2FA1F // CJK Compatibility Ideographs Supplement
-   *     }
-   *
-   *   FT_AUTOHINTER_SCRIPT_INDIC ::
-   *     Apply the indic auto-hinter, covering all major scripts from the
-   *     Indian sub-continent and some other related scripts like Thai, Lao,
-   *     or Tibetan.
-   *
-   *     By default, characters from the following Unicode ranges are
-   *     assigned to this submodule.
-   *
-   *     {
-   *       U+0900 - U+0DFF  // Indic Range
-   *       U+0F00 - U+0FFF  // Tibetan
-   *       U+1900 - U+194F  // Limbu
-   *       U+1B80 - U+1BBF  // Sundanese
-   *       U+A800 - U+A82F  // Syloti Nagri
-   *       U+ABC0 - U+ABFF  // Meetei Mayek
-   *      U+11800 - U+118DF // Sharada
-   *     }
-   *
-   *     Note that currently Indic support is rudimentary only, missing blue
-   *     zone support.
-   *
-   */
-#define FT_AUTOHINTER_SCRIPT_NONE   0
-#define FT_AUTOHINTER_SCRIPT_LATIN  1
-#define FT_AUTOHINTER_SCRIPT_CJK    2
-#define FT_AUTOHINTER_SCRIPT_INDIC  3
-
-
-  /**************************************************************************
-   *
-   * @struct:
-   *   FT_Prop_GlyphToScriptMap
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   The data exchange structure for the @glyph-to-script-map property.
-   *
-   */
-  typedef struct  FT_Prop_GlyphToScriptMap_
-  {
-    FT_Face     face;
-    FT_UShort*  map;
-
-  } FT_Prop_GlyphToScriptMap;
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   fallback-script
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   If no auto-hinter script module can be assigned to a glyph, a
-   *   fallback script gets assigned to it (see also the
-   *   @glyph-to-script-map property).  By default, this is
-   *   @FT_AUTOHINTER_SCRIPT_CJK.  Using the `fallback-script' property,
-   *   this fallback value can be changed.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_UInt     fallback_script = FT_AUTOHINTER_SCRIPT_NONE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "fallback-script", &fallback_script );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   It's important to use the right timing for changing this value: The
-   *   creation of the glyph-to-script map that eventually uses the
-   *   fallback script value gets triggered either by setting or reading a
-   *   face-specific property like @glyph-to-script-map, or by auto-hinting
-   *   any glyph from that face.  In particular, if you have already created
-   *   an @FT_Face structure but not loaded any glyph (using the
-   *   auto-hinter), a change of the fallback script will affect this face.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   default-script
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   If FreeType gets compiled with FT_CONFIG_OPTION_USE_HARFBUZZ to make
-   *   the HarfBuzz library access OpenType features for getting better
-   *   glyph coverages, this property sets the (auto-fitter) script to be
-   *   used for the default (OpenType) script data of a font's GSUB table.
-   *   Features for the default script are intended for all scripts not
-   *   explicitly handled in GSUB; an example is a `dlig' feature,
-   *   containing the combination of the characters `T', `E', and `L' to
-   *   form a `TEL' ligature.
-   *
-   *   By default, this is @FT_AUTOHINTER_SCRIPT_LATIN.  Using the
-   *   `default-script' property, this default value can be changed.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_UInt     default_script = FT_AUTOHINTER_SCRIPT_NONE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "default-script", &default_script );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   It's important to use the right timing for changing this value: The
-   *   creation of the glyph-to-script map that eventually uses the
-   *   default script value gets triggered either by setting or reading a
-   *   face-specific property like @glyph-to-script-map, or by auto-hinting
-   *   any glyph from that face.  In particular, if you have already created
-   *   an @FT_Face structure but not loaded any glyph (using the
-   *   auto-hinter), a change of the default script will affect this face.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   increase-x-height
-   *
-   * @description:
-   *   For ppem values in the range 6~<= ppem <= `increase-x-height', round
-   *   up the font's x~height much more often than normally.  If the value
-   *   is set to~0, which is the default, this feature is switched off.  Use
-   *   this property to improve the legibility of small font sizes if
-   *   necessary.
-   *
-   *   {
-   *     FT_Library               library;
-   *     FT_Face                  face;
-   *     FT_Prop_IncreaseXHeight  prop;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *     FT_New_Face( library, "foo.ttf", 0, &face );
-   *     FT_Set_Char_Size( face, 10 * 64, 0, 72, 0 );
-   *
-   *     prop.face  = face;
-   *     prop.limit = 14;
-   *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "increase-x-height", &prop );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   Set this value right after calling @FT_Set_Char_Size, but before
-   *   loading any glyph (using the auto-hinter).
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @struct:
-   *   FT_Prop_IncreaseXHeight
-   *
-   * @description:
-   *   The data exchange structure for the @increase-x-height property.
-   *
-   */
-  typedef struct  FT_Prop_IncreaseXHeight_
-  {
-    FT_Face  face;
-    FT_UInt  limit;
-
-  } FT_Prop_IncreaseXHeight;
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   warping
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   If FreeType gets compiled with option AF_CONFIG_OPTION_USE_WARPER to
-   *   activate the warp hinting code in the auto-hinter, this property
-   *   switches warping on and off.
-   *
-   *   Warping only works in `normal' auto-hinting mode replacing it.
-   *   The idea of the code is to slightly scale and shift a glyph along
-   *   the non-hinted dimension (which is usually the horizontal axis) so
-   *   that as much of its segments are aligned (more or less) to the grid.
-   *   To find out a glyph's optimal scaling and shifting value, various
-   *   parameter combinations are tried and scored.
-   *
-   *   By default, warping is off.  The example below shows how to switch on
-   *   warping (omitting the error handling).
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Bool     warping = 1;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "warping", &warping );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values 1 and 0 for `on' and `off', respectively).
-   *
-   *   The warping code can also change advance widths.  Have a look at the
-   *   `lsb_delta' and `rsb_delta' fields in the @FT_GlyphSlotRec structure
-   *   for details on improving inter-glyph distances while rendering.
-   *
-   *   Since warping is a global property of the auto-hinter it is best to
-   *   change its value before rendering any face.  Otherwise, you should
-   *   reload all faces that get auto-hinted in `normal' hinting mode.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   no-stem-darkening[autofit]
-   *
-   * @description:
-   *   *Experimental* *only*, *requires* *linear* *alpha* *blending* *and*
-   *   *gamma* *correction*
-   *
-   *   Stem darkening emboldens glyphs at smaller sizes to make them more
-   *   readable on common low-DPI screens when using linear alpha blending
-   *   and gamma correction, see @FT_Render_Glyph.  When not using linear
-   *   alpha blending and gamma correction, glyphs will appear heavy and
-   *   fuzzy!
-   *
-   *   Gamma correction essentially lightens fonts since shades of grey are
-   *   shifted to higher pixel values (=~higher brightness) to match the
-   *   original intention to the reality of our screens.  The side-effect is
-   *   that glyphs `thin out'.  Mac OS~X and Adobe's proprietary font
-   *   rendering library implement a counter-measure: stem darkening at
-   *   smaller sizes where shades of gray dominate.  By emboldening a glyph
-   *   slightly in relation to its pixel size, individual pixels get higher
-   *   coverage of filled-in outlines and are therefore `blacker'.  This
-   *   counteracts the `thinning out' of glyphs, making text remain readable
-   *   at smaller sizes.  All glyphs that pass through the auto-hinter will
-   *   be emboldened unless this property is set to TRUE.
-   *
-   *   See the description of the CFF driver for algorithmic details.  Total
-   *   consistency with the CFF driver is currently not achieved because the
-   *   emboldening method differs and glyphs must be scaled down on the
-   *   Y-axis to keep outline points inside their precomputed blue zones.
-   *   The smaller the size (especially 9ppem and down), the higher the loss
-   *   of emboldening versus the CFF driver.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable similar to the CFF driver.  It can also be set per face
-   *   using @FT_Face_Properties with @FT_PARAM_TAG_STEM_DARKENING.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @constant:
-   *   FT_PARAM_TAG_STEM_DARKENING
-   *
-   * @description:
-   *   An @FT_Parameter tag to be used with @FT_Face_Properties.  The
-   *   corresponding Boolean argument specifies whether to apply stem
-   *   darkening, overriding the global default values or the values set up
-   *   with @FT_Property_Set (see @no-stem-darkening[autofit] and
-   *   @no-stem-darkening[cff]).
-   *
-   *   This is a passive setting that only takes effect if the font driver
-   *   or autohinter honors it, which the CFF driver always does, but the
-   *   autohinter only in `light' hinting mode (as of version 2.7.0).
-   *
-   */
-#define FT_PARAM_TAG_STEM_DARKENING \
-          FT_MAKE_TAG( 'd', 'a', 'r', 'k' )
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   darkening-parameters[autofit]
-   *
-   * @description:
-   *   *Experimental* *only*
-   *
-   *   See the description of the CFF driver for details.  This
-   *   implementation appropriates the
-   *   CFF_CONFIG_OPTION_DARKENING_PARAMETER_* #defines for consistency.
-   *   Note the differences described in @no-stem-darkening[autofit].
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable similar to the CFF driver.
-   */
-
-
-  /* */
-
-
-FT_END_HEADER
-
-#endif /* FTAUTOH_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/ftbbox.h b/thirdparty/freetype/include/freetype/ftbbox.h
index f9eb70b137..22da70c0dc 100644
--- a/thirdparty/freetype/include/freetype/ftbbox.h
+++ b/thirdparty/freetype/include/freetype/ftbbox.h
@@ -1,30 +1,30 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbbox.h                                                               */
-/*                                                                         */
-/*    FreeType exact bbox computation (specification).                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This component has a _single_ role: to compute exact outline bounding */
-  /* boxes.                                                                */
-  /*                                                                       */
-  /* It is separated from the rest of the engine for various technical     */
-  /* reasons.  It may well be integrated in `ftoutln' later.               */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftbbox.h
+ *
+ *   FreeType exact bbox computation (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This component has a _single_ role: to compute exact outline bounding
+   * boxes.
+   *
+   * It is separated from the rest of the engine for various technical
+   * reasons.  It may well be integrated in 'ftoutln' later.
+   *
+   */
 
 
 #ifndef FTBBOX_H_
@@ -44,43 +44,44 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    outline_processing                                                 */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Get_BBox                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the exact bounding box of an outline.  This is slower      */
-  /*    than computing the control box.  However, it uses an advanced      */
-  /*    algorithm that returns _very_ quickly when the two boxes           */
-  /*    coincide.  Otherwise, the outline Bezier arcs are traversed to     */
-  /*    extract their extrema.                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    outline :: A pointer to the source outline.                        */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    abbox   :: The outline's exact bounding box.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If the font is tricky and the glyph has been loaded with           */
-  /*    @FT_LOAD_NO_SCALE, the resulting BBox is meaningless.  To get      */
-  /*    reasonable values for the BBox it is necessary to load the glyph   */
-  /*    at a large ppem value (so that the hinting instructions can        */
-  /*    properly shift and scale the subglyphs), then extracting the BBox, */
-  /*    which can be eventually converted back to font units.              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   outline_processing
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Get_BBox
+   *
+   * @description:
+   *   Compute the exact bounding box of an outline.  This is slower than
+   *   computing the control box.  However, it uses an advanced algorithm
+   *   that returns _very_ quickly when the two boxes coincide.  Otherwise,
+   *   the outline Bezier arcs are traversed to extract their extrema.
+   *
+   * @input:
+   *   outline ::
+   *     A pointer to the source outline.
+   *
+   * @output:
+   *   abbox ::
+   *     The outline's exact bounding box.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   If the font is tricky and the glyph has been loaded with
+   *   @FT_LOAD_NO_SCALE, the resulting BBox is meaningless.  To get
+   *   reasonable values for the BBox it is necessary to load the glyph at a
+   *   large ppem value (so that the hinting instructions can properly shift
+   *   and scale the subglyphs), then extracting the BBox, which can be
+   *   eventually converted back to font units.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Get_BBox( FT_Outline*  outline,
                        FT_BBox     *abbox );
diff --git a/thirdparty/freetype/include/freetype/ftbdf.h b/thirdparty/freetype/include/freetype/ftbdf.h
index 1b6dea6586..1c46da5985 100644
--- a/thirdparty/freetype/include/freetype/ftbdf.h
+++ b/thirdparty/freetype/include/freetype/ftbdf.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbdf.h                                                                */
-/*                                                                         */
-/*    FreeType API for accessing BDF-specific strings (specification).     */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbdf.h
+ *
+ *   FreeType API for accessing BDF-specific strings (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTBDF_H_
@@ -32,25 +32,25 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    bdf_fonts                                                          */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    BDF and PCF Files                                                  */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    BDF and PCF specific API.                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of functions specific to BDF */
-  /*    and PCF fonts.                                                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   bdf_fonts
+   *
+   * @title:
+   *   BDF and PCF Files
+   *
+   * @abstract:
+   *   BDF and PCF specific API.
+   *
+   * @description:
+   *   This section contains the declaration of functions specific to BDF and
+   *   PCF fonts.
+   *
+   */
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *    BDF_PropertyType
@@ -81,40 +81,40 @@ FT_BEGIN_HEADER
   } BDF_PropertyType;
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @type:
    *    BDF_Property
    *
    * @description:
-   *    A handle to a @BDF_PropertyRec structure to model a given
-   *    BDF/PCF property.
+   *    A handle to a @BDF_PropertyRec structure to model a given BDF/PCF
+   *    property.
    */
   typedef struct BDF_PropertyRec_*  BDF_Property;
 
 
- /**********************************************************************
-  *
-  * @struct:
-  *    BDF_PropertyRec
-  *
-  * @description:
-  *    This structure models a given BDF/PCF property.
-  *
-  * @fields:
-  *    type ::
-  *      The property type.
-  *
-  *    u.atom ::
-  *      The atom string, if type is @BDF_PROPERTY_TYPE_ATOM.  May be
-  *      NULL, indicating an empty string.
-  *
-  *    u.integer ::
-  *      A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER.
-  *
-  *    u.cardinal ::
-  *      An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL.
-  */
+  /**************************************************************************
+   *
+   * @struct:
+   *    BDF_PropertyRec
+   *
+   * @description:
+   *    This structure models a given BDF/PCF property.
+   *
+   * @fields:
+   *    type ::
+   *      The property type.
+   *
+   *    u.atom ::
+   *      The atom string, if type is @BDF_PROPERTY_TYPE_ATOM.  May be
+   *      `NULL`, indicating an empty string.
+   *
+   *    u.integer ::
+   *      A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER.
+   *
+   *    u.cardinal ::
+   *      An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL.
+   */
   typedef struct  BDF_PropertyRec_
   {
     BDF_PropertyType  type;
@@ -128,73 +128,76 @@ FT_BEGIN_HEADER
   } BDF_PropertyRec;
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_Get_BDF_Charset_ID
-  *
-  * @description:
-  *    Retrieve a BDF font character set identity, according to
-  *    the BDF specification.
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  * @output:
-  *    acharset_encoding ::
-  *       Charset encoding, as a C~string, owned by the face.
-  *
-  *    acharset_registry ::
-  *       Charset registry, as a C~string, owned by the face.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   This function only works with BDF faces, returning an error otherwise.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_Get_BDF_Charset_ID
+   *
+   * @description:
+   *    Retrieve a BDF font character set identity, according to the BDF
+   *    specification.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   * @output:
+   *    acharset_encoding ::
+   *      Charset encoding, as a C~string, owned by the face.
+   *
+   *    acharset_registry ::
+   *      Charset registry, as a C~string, owned by the face.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function only works with BDF faces, returning an error otherwise.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_BDF_Charset_ID( FT_Face       face,
                          const char*  *acharset_encoding,
                          const char*  *acharset_registry );
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_Get_BDF_Property
-  *
-  * @description:
-  *    Retrieve a BDF property from a BDF or PCF font file.
-  *
-  * @input:
-  *    face :: A handle to the input face.
-  *
-  *    name :: The property name.
-  *
-  * @output:
-  *    aproperty :: The property.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   This function works with BDF _and_ PCF fonts.  It returns an error
-  *   otherwise.  It also returns an error if the property is not in the
-  *   font.
-  *
-  *   A `property' is a either key-value pair within the STARTPROPERTIES
-  *   ... ENDPROPERTIES block of a BDF font or a key-value pair from the
-  *   `info->props' array within a `FontRec' structure of a PCF font.
-  *
-  *   Integer properties are always stored as `signed' within PCF fonts;
-  *   consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
-  *   for BDF fonts only.
-  *
-  *   In case of error, `aproperty->type' is always set to
-  *   @BDF_PROPERTY_TYPE_NONE.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_Get_BDF_Property
+   *
+   * @description:
+   *    Retrieve a BDF property from a BDF or PCF font file.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    name ::
+   *      The property name.
+   *
+   * @output:
+   *    aproperty ::
+   *      The property.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function works with BDF _and_ PCF fonts.  It returns an error
+   *   otherwise.  It also returns an error if the property is not in the
+   *   font.
+   *
+   *   A 'property' is a either key-value pair within the STARTPROPERTIES
+   *   ... ENDPROPERTIES block of a BDF font or a key-value pair from the
+   *   `info->props` array within a `FontRec` structure of a PCF font.
+   *
+   *   Integer properties are always stored as 'signed' within PCF fonts;
+   *   consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
+   *   for BDF fonts only.
+   *
+   *   In case of error, `aproperty->type` is always set to
+   *   @BDF_PROPERTY_TYPE_NONE.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_BDF_Property( FT_Face           face,
                        const char*       prop_name,
diff --git a/thirdparty/freetype/include/freetype/ftbitmap.h b/thirdparty/freetype/include/freetype/ftbitmap.h
index a43187cad4..a6acdb9690 100644
--- a/thirdparty/freetype/include/freetype/ftbitmap.h
+++ b/thirdparty/freetype/include/freetype/ftbitmap.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbitmap.h                                                             */
-/*                                                                         */
-/*    FreeType utility functions for bitmaps (specification).              */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbitmap.h
+ *
+ *   FreeType utility functions for bitmaps (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTBITMAP_H_
@@ -22,6 +22,7 @@
 
 #include <ft2build.h>
 #include FT_FREETYPE_H
+#include FT_COLOR_H
 
 #ifdef FREETYPE_H
 #error "freetype.h of FreeType 1 has been loaded!"
@@ -33,39 +34,46 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    bitmap_handling                                                    */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Bitmap Handling                                                    */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Handling FT_Bitmap objects.                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains functions for handling @FT_Bitmap objects.   */
-  /*    Note that none of the functions changes the bitmap's `flow' (as    */
-  /*    indicated by the sign of the `pitch' field in `FT_Bitmap').        */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Bitmap_Init                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initialize a pointer to an @FT_Bitmap structure.                   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    abitmap :: A pointer to the bitmap structure.                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    A deprecated name for the same function is `FT_Bitmap_New'.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   bitmap_handling
+   *
+   * @title:
+   *   Bitmap Handling
+   *
+   * @abstract:
+   *   Handling FT_Bitmap objects.
+   *
+   * @description:
+   *   This section contains functions for handling @FT_Bitmap objects,
+   *   automatically adjusting the target's bitmap buffer size as needed.
+   *
+   *   Note that none of the functions changes the bitmap's 'flow' (as
+   *   indicated by the sign of the `pitch` field in @FT_Bitmap).
+   *
+   *   To set the flow, assign an appropriate positive or negative value to
+   *   the `pitch` field of the target @FT_Bitmap object after calling
+   *   @FT_Bitmap_Init but before calling any of the other functions
+   *   described here.
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Bitmap_Init
+   *
+   * @description:
+   *   Initialize a pointer to an @FT_Bitmap structure.
+   *
+   * @inout:
+   *   abitmap ::
+   *     A pointer to the bitmap structure.
+   *
+   * @note:
+   *   A deprecated name for the same function is `FT_Bitmap_New`.
+   */
   FT_EXPORT( void )
   FT_Bitmap_Init( FT_Bitmap  *abitmap );
 
@@ -75,66 +83,77 @@ FT_BEGIN_HEADER
   FT_Bitmap_New( FT_Bitmap  *abitmap );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Bitmap_Copy                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Copy a bitmap into another one.                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to a library object.                           */
-  /*                                                                       */
-  /*    source  :: A handle to the source bitmap.                          */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    target  :: A handle to the target bitmap.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Bitmap_Copy
+   *
+   * @description:
+   *   Copy a bitmap into another one.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a library object.
+   *
+   *   source ::
+   *     A handle to the source bitmap.
+   *
+   * @output:
+   *   target ::
+   *     A handle to the target bitmap.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   `source->buffer` and `target->buffer` must neither be equal nor
+   *   overlap.
+   */
   FT_EXPORT( FT_Error )
   FT_Bitmap_Copy( FT_Library        library,
                   const FT_Bitmap  *source,
                   FT_Bitmap        *target );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Bitmap_Embolden                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Embolden a bitmap.  The new bitmap will be about `xStrength'       */
-  /*    pixels wider and `yStrength' pixels higher.  The left and bottom   */
-  /*    borders are kept unchanged.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library   :: A handle to a library object.                         */
-  /*                                                                       */
-  /*    xStrength :: How strong the glyph is emboldened horizontally.      */
-  /*                 Expressed in 26.6 pixel format.                       */
-  /*                                                                       */
-  /*    yStrength :: How strong the glyph is emboldened vertically.        */
-  /*                 Expressed in 26.6 pixel format.                       */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    bitmap    :: A handle to the target bitmap.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The current implementation restricts `xStrength' to be less than   */
-  /*    or equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO.      */
-  /*                                                                       */
-  /*    If you want to embolden the bitmap owned by a @FT_GlyphSlotRec,    */
-  /*    you should call @FT_GlyphSlot_Own_Bitmap on the slot first.        */
-  /*                                                                       */
-  /*    Bitmaps in @FT_PIXEL_MODE_GRAY2 and @FT_PIXEL_MODE_GRAY@ format    */
-  /*    are converted to @FT_PIXEL_MODE_GRAY format (i.e., 8bpp).          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Bitmap_Embolden
+   *
+   * @description:
+   *   Embolden a bitmap.  The new bitmap will be about `xStrength` pixels
+   *   wider and `yStrength` pixels higher.  The left and bottom borders are
+   *   kept unchanged.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a library object.
+   *
+   *   xStrength ::
+   *     How strong the glyph is emboldened horizontally.  Expressed in 26.6
+   *     pixel format.
+   *
+   *   yStrength ::
+   *     How strong the glyph is emboldened vertically.  Expressed in 26.6
+   *     pixel format.
+   *
+   * @inout:
+   *   bitmap ::
+   *     A handle to the target bitmap.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The current implementation restricts `xStrength` to be less than or
+   *   equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO.
+   *
+   *   If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, you
+   *   should call @FT_GlyphSlot_Own_Bitmap on the slot first.
+   *
+   *   Bitmaps in @FT_PIXEL_MODE_GRAY2 and @FT_PIXEL_MODE_GRAY@ format are
+   *   converted to @FT_PIXEL_MODE_GRAY format (i.e., 8bpp).
+   */
   FT_EXPORT( FT_Error )
   FT_Bitmap_Embolden( FT_Library  library,
                       FT_Bitmap*  bitmap,
@@ -142,39 +161,46 @@ FT_BEGIN_HEADER
                       FT_Pos      yStrength );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Bitmap_Convert                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp */
-  /*    to a bitmap object with depth 8bpp, making the number of used      */
-  /*    bytes line (a.k.a. the `pitch') a multiple of `alignment'.         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library   :: A handle to a library object.                         */
-  /*                                                                       */
-  /*    source    :: The source bitmap.                                    */
-  /*                                                                       */
-  /*    alignment :: The pitch of the bitmap is a multiple of this         */
-  /*                 parameter.  Common values are 1, 2, or 4.             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    target    :: The target bitmap.                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    It is possible to call @FT_Bitmap_Convert multiple times without   */
-  /*    calling @FT_Bitmap_Done (the memory is simply reallocated).        */
-  /*                                                                       */
-  /*    Use @FT_Bitmap_Done to finally remove the bitmap object.           */
-  /*                                                                       */
-  /*    The `library' argument is taken to have access to FreeType's       */
-  /*    memory handling functions.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Bitmap_Convert
+   *
+   * @description:
+   *   Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to
+   *   a bitmap object with depth 8bpp, making the number of used bytes per
+   *   line (a.k.a. the 'pitch') a multiple of `alignment`.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a library object.
+   *
+   *   source ::
+   *     The source bitmap.
+   *
+   *   alignment ::
+   *     The pitch of the bitmap is a multiple of this argument.  Common
+   *     values are 1, 2, or 4.
+   *
+   * @output:
+   *   target ::
+   *     The target bitmap.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   It is possible to call @FT_Bitmap_Convert multiple times without
+   *   calling @FT_Bitmap_Done (the memory is simply reallocated).
+   *
+   *   Use @FT_Bitmap_Done to finally remove the bitmap object.
+   *
+   *   The `library` argument is taken to have access to FreeType's memory
+   *   handling functions.
+   *
+   *   `source->buffer` and `target->buffer` must neither be equal nor
+   *   overlap.
+   */
   FT_EXPORT( FT_Error )
   FT_Bitmap_Convert( FT_Library        library,
                      const FT_Bitmap  *source,
@@ -182,48 +208,112 @@ FT_BEGIN_HEADER
                      FT_Int            alignment );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_GlyphSlot_Own_Bitmap                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Make sure that a glyph slot owns `slot->bitmap'.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    slot :: The glyph slot.                                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function is to be used in combination with                    */
-  /*    @FT_Bitmap_Embolden.                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Bitmap_Blend
+   *
+   * @description:
+   *   Blend a bitmap onto another bitmap, using a given color.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a library object.
+   *
+   *   source ::
+   *     The source bitmap, which can have any @FT_Pixel_Mode format.
+   *
+   *   source_offset ::
+   *     The offset vector to the upper left corner of the source bitmap in
+   *     26.6 pixel format.  It should represent an integer offset; the
+   *     function will set the lowest six bits to zero to enforce that.
+   *
+   *   color ::
+   *     The color used to draw `source` onto `target`.
+   *
+   * @inout:
+   *   target ::
+   *     A handle to an `FT_Bitmap` object.  It should be either initialized
+   *     as empty with a call to @FT_Bitmap_Init, or it should be of type
+   *     @FT_PIXEL_MODE_BGRA.
+   *
+   *   atarget_offset ::
+   *     The offset vector to the upper left corner of the target bitmap in
+   *     26.6 pixel format.  It should represent an integer offset; the
+   *     function will set the lowest six bits to zero to enforce that.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function doesn't perform clipping.
+   *
+   *   The bitmap in `target` gets allocated or reallocated as needed; the
+   *   vector `atarget_offset` is updated accordingly.
+   *
+   *   In case of allocation or reallocation, the bitmap's pitch is set to
+   *   `4 * width`.  Both `source` and `target` must have the same bitmap
+   *   flow (as indicated by the sign of the `pitch` field).
+   *
+   *   `source->buffer` and `target->buffer` must neither be equal nor
+   *   overlap.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_Bitmap_Blend( FT_Library         library,
+                   const FT_Bitmap*   source,
+                   const FT_Vector    source_offset,
+                   FT_Bitmap*         target,
+                   FT_Vector         *atarget_offset,
+                   FT_Color           color );
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_GlyphSlot_Own_Bitmap
+   *
+   * @description:
+   *   Make sure that a glyph slot owns `slot->bitmap`.
+   *
+   * @input:
+   *   slot ::
+   *     The glyph slot.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function is to be used in combination with @FT_Bitmap_Embolden.
+   */
   FT_EXPORT( FT_Error )
   FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot  slot );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Bitmap_Done                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroy a bitmap object initialized with @FT_Bitmap_Init.          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to a library object.                           */
-  /*                                                                       */
-  /*    bitmap  :: The bitmap object to be freed.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The `library' argument is taken to have access to FreeType's       */
-  /*    memory handling functions.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Bitmap_Done
+   *
+   * @description:
+   *   Destroy a bitmap object initialized with @FT_Bitmap_Init.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a library object.
+   *
+   *   bitmap ::
+   *     The bitmap object to be freed.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The `library` argument is taken to have access to FreeType's memory
+   *   handling functions.
+   */
   FT_EXPORT( FT_Error )
   FT_Bitmap_Done( FT_Library  library,
                   FT_Bitmap  *bitmap );
diff --git a/thirdparty/freetype/include/freetype/ftbzip2.h b/thirdparty/freetype/include/freetype/ftbzip2.h
index 6edfa031b5..ae88cfdbdb 100644
--- a/thirdparty/freetype/include/freetype/ftbzip2.h
+++ b/thirdparty/freetype/include/freetype/ftbzip2.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbzip2.h                                                              */
-/*                                                                         */
-/*    Bzip2-compressed stream support.                                     */
-/*                                                                         */
-/*  Copyright 2010-2018 by                                                 */
-/*  Joel Klinghed.                                                         */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbzip2.h
+ *
+ *   Bzip2-compressed stream support.
+ *
+ * Copyright (C) 2010-2019 by
+ * Joel Klinghed.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTBZIP2_H_
@@ -31,62 +31,62 @@
 
 FT_BEGIN_HEADER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    bzip2                                                              */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    BZIP2 Streams                                                      */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Using bzip2-compressed font files.                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of Bzip2-specific functions. */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   bzip2
+   *
+   * @title:
+   *   BZIP2 Streams
+   *
+   * @abstract:
+   *   Using bzip2-compressed font files.
+   *
+   * @description:
+   *   This section contains the declaration of Bzip2-specific functions.
+   *
+   */
 
 
- /************************************************************************
-  *
-  * @function:
-  *   FT_Stream_OpenBzip2
-  *
-  * @description:
-  *   Open a new stream to parse bzip2-compressed font files.  This is
-  *   mainly used to support the compressed `*.pcf.bz2' fonts that come
-  *   with XFree86.
-  *
-  * @input:
-  *   stream ::
-  *     The target embedding stream.
-  *
-  *   source ::
-  *     The source stream.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   The source stream must be opened _before_ calling this function.
-  *
-  *   Calling the internal function `FT_Stream_Close' on the new stream will
-  *   *not* call `FT_Stream_Close' on the source stream.  None of the stream
-  *   objects will be released to the heap.
-  *
-  *   The stream implementation is very basic and resets the decompression
-  *   process each time seeking backwards is needed within the stream.
-  *
-  *   In certain builds of the library, bzip2 compression recognition is
-  *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
-  *   This means that if no font driver is capable of handling the raw
-  *   compressed file, the library will try to open a bzip2 compressed stream
-  *   from it and re-open the face with it.
-  *
-  *   This function may return `FT_Err_Unimplemented_Feature' if your build
-  *   of FreeType was not compiled with bzip2 support.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Stream_OpenBzip2
+   *
+   * @description:
+   *   Open a new stream to parse bzip2-compressed font files.  This is
+   *   mainly used to support the compressed `*.pcf.bz2` fonts that come with
+   *   XFree86.
+   *
+   * @input:
+   *   stream ::
+   *     The target embedding stream.
+   *
+   *   source ::
+   *     The source stream.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The source stream must be opened _before_ calling this function.
+   *
+   *   Calling the internal function `FT_Stream_Close` on the new stream will
+   *   **not** call `FT_Stream_Close` on the source stream.  None of the
+   *   stream objects will be released to the heap.
+   *
+   *   The stream implementation is very basic and resets the decompression
+   *   process each time seeking backwards is needed within the stream.
+   *
+   *   In certain builds of the library, bzip2 compression recognition is
+   *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
+   *   This means that if no font driver is capable of handling the raw
+   *   compressed file, the library will try to open a bzip2 compressed
+   *   stream from it and re-open the face with it.
+   *
+   *   This function may return `FT_Err_Unimplemented_Feature` if your build
+   *   of FreeType was not compiled with bzip2 support.
+   */
   FT_EXPORT( FT_Error )
   FT_Stream_OpenBzip2( FT_Stream  stream,
                        FT_Stream  source );
diff --git a/thirdparty/freetype/include/freetype/ftcache.h b/thirdparty/freetype/include/freetype/ftcache.h
index 52d5f00e06..0d589d0b34 100644
--- a/thirdparty/freetype/include/freetype/ftcache.h
+++ b/thirdparty/freetype/include/freetype/ftcache.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcache.h                                                              */
-/*                                                                         */
-/*    FreeType Cache subsystem (specification).                            */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcache.h
+ *
+ *   FreeType Cache subsystem (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTCACHE_H_
@@ -27,24 +27,24 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
-   * <Section>
-   *    cache_subsystem
+   * @section:
+   *   cache_subsystem
    *
-   * <Title>
-   *    Cache Sub-System
+   * @title:
+   *   Cache Sub-System
    *
-   * <Abstract>
-   *    How to cache face, size, and glyph data with FreeType~2.
+   * @abstract:
+   *   How to cache face, size, and glyph data with FreeType~2.
    *
-   * <Description>
+   * @description:
    *   This section describes the FreeType~2 cache sub-system, which is used
    *   to limit the number of concurrently opened @FT_Face and @FT_Size
    *   objects, as well as caching information like character maps and glyph
    *   images while limiting their maximum memory usage.
    *
-   *   Note that all types and functions begin with the `FTC_' prefix.
+   *   Note that all types and functions begin with the `FTC_` prefix.
    *
    *   The cache is highly portable and thus doesn't know anything about the
    *   fonts installed on your system, or how to access them.  This implies
@@ -59,7 +59,7 @@ FT_BEGIN_HEADER
    *   to convert an @FTC_FaceID into a new @FT_Face object.  The latter is
    *   then completely managed by the cache, including its termination
    *   through @FT_Done_Face.  To monitor termination of face objects, the
-   *   finalizer callback in the `generic' field of the @FT_Face object can
+   *   finalizer callback in the `generic` field of the @FT_Face object can
    *   be used, which might also be used to store the @FTC_FaceID of the
    *   face.
    *
@@ -69,14 +69,14 @@ FT_BEGIN_HEADER
    *   possible.
    *
    *   Note that for the cache to work correctly, the face ID values must be
-   *   *persistent*, which means that the contents they point to should not
+   *   **persistent**, which means that the contents they point to should not
    *   change at runtime, or that their value should not become invalid.
    *
    *   If this is unavoidable (e.g., when a font is uninstalled at runtime),
    *   you should call @FTC_Manager_RemoveFaceID as soon as possible, to let
-   *   the cache get rid of any references to the old @FTC_FaceID it may
-   *   keep internally.  Failure to do so will lead to incorrect behaviour
-   *   or even crashes.
+   *   the cache get rid of any references to the old @FTC_FaceID it may keep
+   *   internally.  Failure to do so will lead to incorrect behaviour or even
+   *   crashes.
    *
    *   To use the cache, start with calling @FTC_Manager_New to create a new
    *   @FTC_Manager object, which models a single cache instance.  You can
@@ -91,16 +91,16 @@ FT_BEGIN_HEADER
    *   later use @FTC_ImageCache_Lookup to retrieve the corresponding
    *   @FT_Glyph objects from the cache.
    *
-   *   If you need lots of small bitmaps, it is much more memory efficient
-   *   to call @FTC_SBitCache_New followed by @FTC_SBitCache_Lookup.  This
-   *   returns @FTC_SBitRec structures, which are used to store small
-   *   bitmaps directly.  (A small bitmap is one whose metrics and
-   *   dimensions all fit into 8-bit integers).
+   *   If you need lots of small bitmaps, it is much more memory efficient to
+   *   call @FTC_SBitCache_New followed by @FTC_SBitCache_Lookup.  This
+   *   returns @FTC_SBitRec structures, which are used to store small bitmaps
+   *   directly.  (A small bitmap is one whose metrics and dimensions all fit
+   *   into 8-bit integers).
    *
    *   We hope to also provide a kerning cache in the near future.
    *
    *
-   * <Order>
+   * @order:
    *   FTC_Manager
    *   FTC_FaceID
    *   FTC_Face_Requester
@@ -142,19 +142,20 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
-   * @type: FTC_FaceID
+   * @type:
+   *   FTC_FaceID
    *
    * @description:
    *   An opaque pointer type that is used to identity face objects.  The
    *   contents of such objects is application-dependent.
    *
-   *   These pointers are typically used to point to a user-defined
-   *   structure containing a font file path, and face index.
+   *   These pointers are typically used to point to a user-defined structure
+   *   containing a font file path, and face index.
    *
    * @note:
-   *   Never use NULL as a valid @FTC_FaceID.
+   *   Never use `NULL` as a valid @FTC_FaceID.
    *
    *   Face IDs are passed by the client to the cache manager that calls,
    *   when needed, the @FTC_Face_Requester to translate them into new
@@ -165,13 +166,13 @@ FT_BEGIN_HEADER
    *   immediately call @FTC_Manager_RemoveFaceID before any other cache
    *   function.
    *
-   *   Failure to do so will result in incorrect behaviour or even
-   *   memory leaks and crashes.
+   *   Failure to do so will result in incorrect behaviour or even memory
+   *   leaks and crashes.
    */
   typedef FT_Pointer  FTC_FaceID;
 
 
-  /************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   FTC_Face_Requester
@@ -181,7 +182,7 @@ FT_BEGIN_HEADER
    *   the cache manager to translate a given @FTC_FaceID into a new valid
    *   @FT_Face object, on demand.
    *
-   * <Input>
+   * @input:
    *   face_id ::
    *     The face ID to resolve.
    *
@@ -191,15 +192,15 @@ FT_BEGIN_HEADER
    *   req_data ::
    *     Application-provided request data (see note below).
    *
-   * <Output>
+   * @output:
    *   aface ::
    *     A new @FT_Face handle.
    *
-   * <Return>
+   * @return:
    *   FreeType error code.  0~means success.
    *
-   * <Note>
-   *   The third parameter `req_data' is the same as the one passed by the
+   * @note:
+   *   The third parameter `req_data` is the same as the one passed by the
    *   client when @FTC_Manager_New is called.
    *
    *   The face requester should not perform funny things on the returned
@@ -226,84 +227,90 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FTC_Manager                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This object corresponds to one instance of the cache-subsystem.    */
-  /*    It is used to cache one or more @FT_Face objects, along with       */
-  /*    corresponding @FT_Size objects.                                    */
-  /*                                                                       */
-  /*    The manager intentionally limits the total number of opened        */
-  /*    @FT_Face and @FT_Size objects to control memory usage.  See the    */
-  /*    `max_faces' and `max_sizes' parameters of @FTC_Manager_New.        */
-  /*                                                                       */
-  /*    The manager is also used to cache `nodes' of various types while   */
-  /*    limiting their total memory usage.                                 */
-  /*                                                                       */
-  /*    All limitations are enforced by keeping lists of managed objects   */
-  /*    in most-recently-used order, and flushing old nodes to make room   */
-  /*    for new ones.                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FTC_Manager
+   *
+   * @description:
+   *   This object corresponds to one instance of the cache-subsystem.  It is
+   *   used to cache one or more @FT_Face objects, along with corresponding
+   *   @FT_Size objects.
+   *
+   *   The manager intentionally limits the total number of opened @FT_Face
+   *   and @FT_Size objects to control memory usage.  See the `max_faces` and
+   *   `max_sizes` parameters of @FTC_Manager_New.
+   *
+   *   The manager is also used to cache 'nodes' of various types while
+   *   limiting their total memory usage.
+   *
+   *   All limitations are enforced by keeping lists of managed objects in
+   *   most-recently-used order, and flushing old nodes to make room for new
+   *   ones.
+   */
   typedef struct FTC_ManagerRec_*  FTC_Manager;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FTC_Node                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An opaque handle to a cache node object.  Each cache node is       */
-  /*    reference-counted.  A node with a count of~0 might be flushed      */
-  /*    out of a full cache whenever a lookup request is performed.        */
-  /*                                                                       */
-  /*    If you look up nodes, you have the ability to `acquire' them,      */
-  /*    i.e., to increment their reference count.  This will prevent the   */
-  /*    node from being flushed out of the cache until you explicitly      */
-  /*    `release' it (see @FTC_Node_Unref).                                */
-  /*                                                                       */
-  /*    See also @FTC_SBitCache_Lookup and @FTC_ImageCache_Lookup.         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FTC_Node
+   *
+   * @description:
+   *   An opaque handle to a cache node object.  Each cache node is
+   *   reference-counted.  A node with a count of~0 might be flushed out of a
+   *   full cache whenever a lookup request is performed.
+   *
+   *   If you look up nodes, you have the ability to 'acquire' them, i.e., to
+   *   increment their reference count.  This will prevent the node from
+   *   being flushed out of the cache until you explicitly 'release' it (see
+   *   @FTC_Node_Unref).
+   *
+   *   See also @FTC_SBitCache_Lookup and @FTC_ImageCache_Lookup.
+   */
   typedef struct FTC_NodeRec_*  FTC_Node;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Manager_New                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new cache manager.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library   :: The parent FreeType library handle to use.            */
-  /*                                                                       */
-  /*    max_faces :: Maximum number of opened @FT_Face objects managed by  */
-  /*                 this cache instance.  Use~0 for defaults.             */
-  /*                                                                       */
-  /*    max_sizes :: Maximum number of opened @FT_Size objects managed by  */
-  /*                 this cache instance.  Use~0 for defaults.             */
-  /*                                                                       */
-  /*    max_bytes :: Maximum number of bytes to use for cached data nodes. */
-  /*                 Use~0 for defaults.  Note that this value does not    */
-  /*                 account for managed @FT_Face and @FT_Size objects.    */
-  /*                                                                       */
-  /*    requester :: An application-provided callback used to translate    */
-  /*                 face IDs into real @FT_Face objects.                  */
-  /*                                                                       */
-  /*    req_data  :: A generic pointer that is passed to the requester     */
-  /*                 each time it is called (see @FTC_Face_Requester).     */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    amanager  :: A handle to a new manager object.  0~in case of       */
-  /*                 failure.                                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_Manager_New
+   *
+   * @description:
+   *   Create a new cache manager.
+   *
+   * @input:
+   *   library ::
+   *     The parent FreeType library handle to use.
+   *
+   *   max_faces ::
+   *     Maximum number of opened @FT_Face objects managed by this cache
+   *     instance.  Use~0 for defaults.
+   *
+   *   max_sizes ::
+   *     Maximum number of opened @FT_Size objects managed by this cache
+   *     instance.  Use~0 for defaults.
+   *
+   *   max_bytes ::
+   *     Maximum number of bytes to use for cached data nodes.  Use~0 for
+   *     defaults.  Note that this value does not account for managed
+   *     @FT_Face and @FT_Size objects.
+   *
+   *   requester ::
+   *     An application-provided callback used to translate face IDs into
+   *     real @FT_Face objects.
+   *
+   *   req_data ::
+   *     A generic pointer that is passed to the requester each time it is
+   *     called (see @FTC_Face_Requester).
+   *
+   * @output:
+   *   amanager ::
+   *     A handle to a new manager object.  0~in case of failure.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FTC_Manager_New( FT_Library          library,
                    FT_UInt             max_faces,
@@ -314,114 +321,124 @@ FT_BEGIN_HEADER
                    FTC_Manager        *amanager );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Manager_Reset                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Empty a given cache manager.  This simply gets rid of all the      */
-  /*    currently cached @FT_Face and @FT_Size objects within the manager. */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    manager :: A handle to the manager.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_Manager_Reset
+   *
+   * @description:
+   *   Empty a given cache manager.  This simply gets rid of all the
+   *   currently cached @FT_Face and @FT_Size objects within the manager.
+   *
+   * @inout:
+   *   manager ::
+   *     A handle to the manager.
+   */
   FT_EXPORT( void )
   FTC_Manager_Reset( FTC_Manager  manager );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Manager_Done                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroy a given manager after emptying it.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    manager :: A handle to the target cache manager object.            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_Manager_Done
+   *
+   * @description:
+   *   Destroy a given manager after emptying it.
+   *
+   * @input:
+   *   manager ::
+   *     A handle to the target cache manager object.
+   */
   FT_EXPORT( void )
   FTC_Manager_Done( FTC_Manager  manager );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Manager_LookupFace                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the @FT_Face object that corresponds to a given face ID   */
-  /*    through a cache manager.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    manager :: A handle to the cache manager.                          */
-  /*                                                                       */
-  /*    face_id :: The ID of the face object.                              */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aface   :: A handle to the face object.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The returned @FT_Face object is always owned by the manager.  You  */
-  /*    should never try to discard it yourself.                           */
-  /*                                                                       */
-  /*    The @FT_Face object doesn't necessarily have a current size object */
-  /*    (i.e., face->size can be~0).  If you need a specific `font size',  */
-  /*    use @FTC_Manager_LookupSize instead.                               */
-  /*                                                                       */
-  /*    Never change the face's transformation matrix (i.e., never call    */
-  /*    the @FT_Set_Transform function) on a returned face!  If you need   */
-  /*    to transform glyphs, do it yourself after glyph loading.           */
-  /*                                                                       */
-  /*    When you perform a lookup, out-of-memory errors are detected       */
-  /*    _within_ the lookup and force incremental flushes of the cache     */
-  /*    until enough memory is released for the lookup to succeed.         */
-  /*                                                                       */
-  /*    If a lookup fails with `FT_Err_Out_Of_Memory' the cache has        */
-  /*    already been completely flushed, and still no memory was available */
-  /*    for the operation.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_Manager_LookupFace
+   *
+   * @description:
+   *   Retrieve the @FT_Face object that corresponds to a given face ID
+   *   through a cache manager.
+   *
+   * @input:
+   *   manager ::
+   *     A handle to the cache manager.
+   *
+   *   face_id ::
+   *     The ID of the face object.
+   *
+   * @output:
+   *   aface ::
+   *     A handle to the face object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The returned @FT_Face object is always owned by the manager.  You
+   *   should never try to discard it yourself.
+   *
+   *   The @FT_Face object doesn't necessarily have a current size object
+   *   (i.e., face->size can be~0).  If you need a specific 'font size', use
+   *   @FTC_Manager_LookupSize instead.
+   *
+   *   Never change the face's transformation matrix (i.e., never call the
+   *   @FT_Set_Transform function) on a returned face!  If you need to
+   *   transform glyphs, do it yourself after glyph loading.
+   *
+   *   When you perform a lookup, out-of-memory errors are detected _within_
+   *   the lookup and force incremental flushes of the cache until enough
+   *   memory is released for the lookup to succeed.
+   *
+   *   If a lookup fails with `FT_Err_Out_Of_Memory` the cache has already
+   *   been completely flushed, and still no memory was available for the
+   *   operation.
+   */
   FT_EXPORT( FT_Error )
   FTC_Manager_LookupFace( FTC_Manager  manager,
                           FTC_FaceID   face_id,
                           FT_Face     *aface );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FTC_ScalerRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to describe a given character size in either      */
-  /*    pixels or points to the cache manager.  See                        */
-  /*    @FTC_Manager_LookupSize.                                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    face_id :: The source face ID.                                     */
-  /*                                                                       */
-  /*    width   :: The character width.                                    */
-  /*                                                                       */
-  /*    height  :: The character height.                                   */
-  /*                                                                       */
-  /*    pixel   :: A Boolean.  If 1, the `width' and `height' fields are   */
-  /*               interpreted as integer pixel character sizes.           */
-  /*               Otherwise, they are expressed as 1/64th of points.      */
-  /*                                                                       */
-  /*    x_res   :: Only used when `pixel' is value~0 to indicate the       */
-  /*               horizontal resolution in dpi.                           */
-  /*                                                                       */
-  /*    y_res   :: Only used when `pixel' is value~0 to indicate the       */
-  /*               vertical resolution in dpi.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This type is mainly used to retrieve @FT_Size objects through the  */
-  /*    cache manager.                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FTC_ScalerRec
+   *
+   * @description:
+   *   A structure used to describe a given character size in either pixels
+   *   or points to the cache manager.  See @FTC_Manager_LookupSize.
+   *
+   * @fields:
+   *   face_id ::
+   *     The source face ID.
+   *
+   *   width ::
+   *     The character width.
+   *
+   *   height ::
+   *     The character height.
+   *
+   *   pixel ::
+   *     A Boolean.  If 1, the `width` and `height` fields are interpreted as
+   *     integer pixel character sizes.  Otherwise, they are expressed as
+   *     1/64th of points.
+   *
+   *   x_res ::
+   *     Only used when `pixel` is value~0 to indicate the horizontal
+   *     resolution in dpi.
+   *
+   *   y_res ::
+   *     Only used when `pixel` is value~0 to indicate the vertical
+   *     resolution in dpi.
+   *
+   * @note:
+   *   This type is mainly used to retrieve @FT_Size objects through the
+   *   cache manager.
+   */
   typedef struct  FTC_ScalerRec_
   {
     FTC_FaceID  face_id;
@@ -434,89 +451,93 @@ FT_BEGIN_HEADER
   } FTC_ScalerRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FTC_Scaler                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an @FTC_ScalerRec structure.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FTC_Scaler
+   *
+   * @description:
+   *   A handle to an @FTC_ScalerRec structure.
+   */
   typedef struct FTC_ScalerRec_*  FTC_Scaler;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Manager_LookupSize                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the @FT_Size object that corresponds to a given           */
-  /*    @FTC_ScalerRec pointer through a cache manager.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    manager :: A handle to the cache manager.                          */
-  /*                                                                       */
-  /*    scaler  :: A scaler handle.                                        */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    asize   :: A handle to the size object.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The returned @FT_Size object is always owned by the manager.  You  */
-  /*    should never try to discard it by yourself.                        */
-  /*                                                                       */
-  /*    You can access the parent @FT_Face object simply as `size->face'   */
-  /*    if you need it.  Note that this object is also owned by the        */
-  /*    manager.                                                           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    When you perform a lookup, out-of-memory errors are detected       */
-  /*    _within_ the lookup and force incremental flushes of the cache     */
-  /*    until enough memory is released for the lookup to succeed.         */
-  /*                                                                       */
-  /*    If a lookup fails with `FT_Err_Out_Of_Memory' the cache has        */
-  /*    already been completely flushed, and still no memory is available  */
-  /*    for the operation.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_Manager_LookupSize
+   *
+   * @description:
+   *   Retrieve the @FT_Size object that corresponds to a given
+   *   @FTC_ScalerRec pointer through a cache manager.
+   *
+   * @input:
+   *   manager ::
+   *     A handle to the cache manager.
+   *
+   *   scaler ::
+   *     A scaler handle.
+   *
+   * @output:
+   *   asize ::
+   *     A handle to the size object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The returned @FT_Size object is always owned by the manager.  You
+   *   should never try to discard it by yourself.
+   *
+   *   You can access the parent @FT_Face object simply as `size->face` if
+   *   you need it.  Note that this object is also owned by the manager.
+   *
+   * @note:
+   *   When you perform a lookup, out-of-memory errors are detected _within_
+   *   the lookup and force incremental flushes of the cache until enough
+   *   memory is released for the lookup to succeed.
+   *
+   *   If a lookup fails with `FT_Err_Out_Of_Memory` the cache has already
+   *   been completely flushed, and still no memory is available for the
+   *   operation.
+   */
   FT_EXPORT( FT_Error )
   FTC_Manager_LookupSize( FTC_Manager  manager,
                           FTC_Scaler   scaler,
                           FT_Size     *asize );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Node_Unref                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Decrement a cache node's internal reference count.  When the count */
-  /*    reaches 0, it is not destroyed but becomes eligible for subsequent */
-  /*    cache flushes.                                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    node    :: The cache node handle.                                  */
-  /*                                                                       */
-  /*    manager :: The cache manager handle.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_Node_Unref
+   *
+   * @description:
+   *   Decrement a cache node's internal reference count.  When the count
+   *   reaches 0, it is not destroyed but becomes eligible for subsequent
+   *   cache flushes.
+   *
+   * @input:
+   *   node ::
+   *     The cache node handle.
+   *
+   *   manager ::
+   *     The cache manager handle.
+   */
   FT_EXPORT( void )
   FTC_Node_Unref( FTC_Node     node,
                   FTC_Manager  manager );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FTC_Manager_RemoveFaceID
    *
    * @description:
-   *   A special function used to indicate to the cache manager that
-   *   a given @FTC_FaceID is no longer valid, either because its
-   *   content changed, or because it was deallocated or uninstalled.
+   *   A special function used to indicate to the cache manager that a given
+   *   @FTC_FaceID is no longer valid, either because its content changed, or
+   *   because it was deallocated or uninstalled.
    *
    * @input:
    *   manager ::
@@ -527,11 +548,11 @@ FT_BEGIN_HEADER
    *
    * @note:
    *   This function flushes all nodes from the cache corresponding to this
-   *   `face_id', with the exception of nodes with a non-null reference
+   *   `face_id`, with the exception of nodes with a non-null reference
    *   count.
    *
-   *   Such nodes are however modified internally so as to never appear
-   *   in later lookups with the same `face_id' value, and to be immediately
+   *   Such nodes are however modified internally so as to never appear in
+   *   later lookups with the same `face_id` value, and to be immediately
    *   destroyed when released by all their users.
    *
    */
@@ -540,20 +561,20 @@ FT_BEGIN_HEADER
                             FTC_FaceID   face_id );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FTC_CMapCache
    *
    * @description:
-   *   An opaque handle used to model a charmap cache.  This cache is to
-   *   hold character codes -> glyph indices mappings.
+   *   An opaque handle used to model a charmap cache.  This cache is to hold
+   *   character codes -> glyph indices mappings.
    *
    */
   typedef struct FTC_CMapCacheRec_*  FTC_CMapCache;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FTC_CMapCache_New
@@ -567,7 +588,7 @@ FT_BEGIN_HEADER
    *
    * @output:
    *   acache ::
-   *     A new cache handle.  NULL in case of error.
+   *     A new cache handle.  `NULL` in case of error.
    *
    * @return:
    *   FreeType error code.  0~means success.
@@ -582,7 +603,7 @@ FT_BEGIN_HEADER
                      FTC_CMapCache  *acache );
 
 
-  /************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FTC_CMapCache_Lookup
@@ -606,7 +627,7 @@ FT_BEGIN_HEADER
    *     The character code (in the corresponding charmap).
    *
    * @return:
-   *    Glyph index.  0~means `no glyph'.
+   *    Glyph index.  0~means 'no glyph'.
    *
    */
   FT_EXPORT( FT_UInt )
@@ -627,7 +648,7 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FTC_ImageTypeRec
@@ -659,7 +680,7 @@ FT_BEGIN_HEADER
   } FTC_ImageTypeRec;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FTC_ImageType
@@ -680,83 +701,87 @@ FT_BEGIN_HEADER
             (d1)->flags   == (d2)->flags   )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FTC_ImageCache                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a glyph image cache object.  They are designed to      */
-  /*    hold many distinct glyph images while not exceeding a certain      */
-  /*    memory threshold.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FTC_ImageCache
+   *
+   * @description:
+   *   A handle to a glyph image cache object.  They are designed to hold
+   *   many distinct glyph images while not exceeding a certain memory
+   *   threshold.
+   */
   typedef struct FTC_ImageCacheRec_*  FTC_ImageCache;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_ImageCache_New                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new glyph image cache.                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    manager :: The parent manager for the image cache.                 */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    acache  :: A handle to the new glyph image cache object.           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_ImageCache_New
+   *
+   * @description:
+   *   Create a new glyph image cache.
+   *
+   * @input:
+   *   manager ::
+   *     The parent manager for the image cache.
+   *
+   * @output:
+   *   acache ::
+   *     A handle to the new glyph image cache object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FTC_ImageCache_New( FTC_Manager      manager,
                       FTC_ImageCache  *acache );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_ImageCache_Lookup                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve a given glyph image from a glyph image cache.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    cache  :: A handle to the source glyph image cache.                */
-  /*                                                                       */
-  /*    type   :: A pointer to a glyph image type descriptor.              */
-  /*                                                                       */
-  /*    gindex :: The glyph index to retrieve.                             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aglyph :: The corresponding @FT_Glyph object.  0~in case of        */
-  /*              failure.                                                 */
-  /*                                                                       */
-  /*    anode  :: Used to return the address of the corresponding cache    */
-  /*              node after incrementing its reference count (see note    */
-  /*              below).                                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The returned glyph is owned and managed by the glyph image cache.  */
-  /*    Never try to transform or discard it manually!  You can however    */
-  /*    create a copy with @FT_Glyph_Copy and modify the new one.          */
-  /*                                                                       */
-  /*    If `anode' is _not_ NULL, it receives the address of the cache     */
-  /*    node containing the glyph image, after increasing its reference    */
-  /*    count.  This ensures that the node (as well as the @FT_Glyph) will */
-  /*    always be kept in the cache until you call @FTC_Node_Unref to      */
-  /*    `release' it.                                                      */
-  /*                                                                       */
-  /*    If `anode' is NULL, the cache node is left unchanged, which means  */
-  /*    that the @FT_Glyph could be flushed out of the cache on the next   */
-  /*    call to one of the caching sub-system APIs.  Don't assume that it  */
-  /*    is persistent!                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_ImageCache_Lookup
+   *
+   * @description:
+   *   Retrieve a given glyph image from a glyph image cache.
+   *
+   * @input:
+   *   cache ::
+   *     A handle to the source glyph image cache.
+   *
+   *   type ::
+   *     A pointer to a glyph image type descriptor.
+   *
+   *   gindex ::
+   *     The glyph index to retrieve.
+   *
+   * @output:
+   *   aglyph ::
+   *     The corresponding @FT_Glyph object.  0~in case of failure.
+   *
+   *   anode ::
+   *     Used to return the address of the corresponding cache node after
+   *     incrementing its reference count (see note below).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The returned glyph is owned and managed by the glyph image cache.
+   *   Never try to transform or discard it manually!  You can however create
+   *   a copy with @FT_Glyph_Copy and modify the new one.
+   *
+   *   If `anode` is _not_ `NULL`, it receives the address of the cache node
+   *   containing the glyph image, after increasing its reference count.
+   *   This ensures that the node (as well as the @FT_Glyph) will always be
+   *   kept in the cache until you call @FTC_Node_Unref to 'release' it.
+   *
+   *   If `anode` is `NULL`, the cache node is left unchanged, which means
+   *   that the @FT_Glyph could be flushed out of the cache on the next call
+   *   to one of the caching sub-system APIs.  Don't assume that it is
+   *   persistent!
+   */
   FT_EXPORT( FT_Error )
   FTC_ImageCache_Lookup( FTC_ImageCache  cache,
                          FTC_ImageType   type,
@@ -765,54 +790,57 @@ FT_BEGIN_HEADER
                          FTC_Node       *anode );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_ImageCache_LookupScaler                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A variant of @FTC_ImageCache_Lookup that uses an @FTC_ScalerRec    */
-  /*    to specify the face ID and its size.                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    cache      :: A handle to the source glyph image cache.            */
-  /*                                                                       */
-  /*    scaler     :: A pointer to a scaler descriptor.                    */
-  /*                                                                       */
-  /*    load_flags :: The corresponding load flags.                        */
-  /*                                                                       */
-  /*    gindex     :: The glyph index to retrieve.                         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aglyph     :: The corresponding @FT_Glyph object.  0~in case of    */
-  /*                  failure.                                             */
-  /*                                                                       */
-  /*    anode      :: Used to return the address of the corresponding      */
-  /*                  cache node after incrementing its reference count    */
-  /*                  (see note below).                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The returned glyph is owned and managed by the glyph image cache.  */
-  /*    Never try to transform or discard it manually!  You can however    */
-  /*    create a copy with @FT_Glyph_Copy and modify the new one.          */
-  /*                                                                       */
-  /*    If `anode' is _not_ NULL, it receives the address of the cache     */
-  /*    node containing the glyph image, after increasing its reference    */
-  /*    count.  This ensures that the node (as well as the @FT_Glyph) will */
-  /*    always be kept in the cache until you call @FTC_Node_Unref to      */
-  /*    `release' it.                                                      */
-  /*                                                                       */
-  /*    If `anode' is NULL, the cache node is left unchanged, which means  */
-  /*    that the @FT_Glyph could be flushed out of the cache on the next   */
-  /*    call to one of the caching sub-system APIs.  Don't assume that it  */
-  /*    is persistent!                                                     */
-  /*                                                                       */
-  /*    Calls to @FT_Set_Char_Size and friends have no effect on cached    */
-  /*    glyphs; you should always use the FreeType cache API instead.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_ImageCache_LookupScaler
+   *
+   * @description:
+   *   A variant of @FTC_ImageCache_Lookup that uses an @FTC_ScalerRec to
+   *   specify the face ID and its size.
+   *
+   * @input:
+   *   cache ::
+   *     A handle to the source glyph image cache.
+   *
+   *   scaler ::
+   *     A pointer to a scaler descriptor.
+   *
+   *   load_flags ::
+   *     The corresponding load flags.
+   *
+   *   gindex ::
+   *     The glyph index to retrieve.
+   *
+   * @output:
+   *   aglyph ::
+   *     The corresponding @FT_Glyph object.  0~in case of failure.
+   *
+   *   anode ::
+   *     Used to return the address of the corresponding cache node after
+   *     incrementing its reference count (see note below).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The returned glyph is owned and managed by the glyph image cache.
+   *   Never try to transform or discard it manually!  You can however create
+   *   a copy with @FT_Glyph_Copy and modify the new one.
+   *
+   *   If `anode` is _not_ `NULL`, it receives the address of the cache node
+   *   containing the glyph image, after increasing its reference count.
+   *   This ensures that the node (as well as the @FT_Glyph) will always be
+   *   kept in the cache until you call @FTC_Node_Unref to 'release' it.
+   *
+   *   If `anode` is `NULL`, the cache node is left unchanged, which means
+   *   that the @FT_Glyph could be flushed out of the cache on the next call
+   *   to one of the caching sub-system APIs.  Don't assume that it is
+   *   persistent!
+   *
+   *   Calls to @FT_Set_Char_Size and friends have no effect on cached
+   *   glyphs; you should always use the FreeType cache API instead.
+   */
   FT_EXPORT( FT_Error )
   FTC_ImageCache_LookupScaler( FTC_ImageCache  cache,
                                FTC_Scaler      scaler,
@@ -822,53 +850,60 @@ FT_BEGIN_HEADER
                                FTC_Node       *anode );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FTC_SBit                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a small bitmap descriptor.  See the @FTC_SBitRec       */
-  /*    structure for details.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FTC_SBit
+   *
+   * @description:
+   *   A handle to a small bitmap descriptor.  See the @FTC_SBitRec structure
+   *   for details.
+   */
   typedef struct FTC_SBitRec_*  FTC_SBit;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FTC_SBitRec                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A very compact structure used to describe a small glyph bitmap.    */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    width     :: The bitmap width in pixels.                           */
-  /*                                                                       */
-  /*    height    :: The bitmap height in pixels.                          */
-  /*                                                                       */
-  /*    left      :: The horizontal distance from the pen position to the  */
-  /*                 left bitmap border (a.k.a. `left side bearing', or    */
-  /*                 `lsb').                                               */
-  /*                                                                       */
-  /*    top       :: The vertical distance from the pen position (on the   */
-  /*                 baseline) to the upper bitmap border (a.k.a. `top     */
-  /*                 side bearing').  The distance is positive for upwards */
-  /*                 y~coordinates.                                        */
-  /*                                                                       */
-  /*    format    :: The format of the glyph bitmap (monochrome or gray).  */
-  /*                                                                       */
-  /*    max_grays :: Maximum gray level value (in the range 1 to~255).     */
-  /*                                                                       */
-  /*    pitch     :: The number of bytes per bitmap line.  May be positive */
-  /*                 or negative.                                          */
-  /*                                                                       */
-  /*    xadvance  :: The horizontal advance width in pixels.               */
-  /*                                                                       */
-  /*    yadvance  :: The vertical advance height in pixels.                */
-  /*                                                                       */
-  /*    buffer    :: A pointer to the bitmap pixels.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FTC_SBitRec
+   *
+   * @description:
+   *   A very compact structure used to describe a small glyph bitmap.
+   *
+   * @fields:
+   *   width ::
+   *     The bitmap width in pixels.
+   *
+   *   height ::
+   *     The bitmap height in pixels.
+   *
+   *   left ::
+   *     The horizontal distance from the pen position to the left bitmap
+   *     border (a.k.a. 'left side bearing', or 'lsb').
+   *
+   *   top ::
+   *     The vertical distance from the pen position (on the baseline) to the
+   *     upper bitmap border (a.k.a. 'top side bearing').  The distance is
+   *     positive for upwards y~coordinates.
+   *
+   *   format ::
+   *     The format of the glyph bitmap (monochrome or gray).
+   *
+   *   max_grays ::
+   *     Maximum gray level value (in the range 1 to~255).
+   *
+   *   pitch ::
+   *     The number of bytes per bitmap line.  May be positive or negative.
+   *
+   *   xadvance ::
+   *     The horizontal advance width in pixels.
+   *
+   *   yadvance ::
+   *     The vertical advance height in pixels.
+   *
+   *   buffer ::
+   *     A pointer to the bitmap pixels.
+   */
   typedef struct  FTC_SBitRec_
   {
     FT_Byte   width;
@@ -887,87 +922,93 @@ FT_BEGIN_HEADER
   } FTC_SBitRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FTC_SBitCache                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a small bitmap cache.  These are special cache objects */
-  /*    used to store small glyph bitmaps (and anti-aliased pixmaps) in a  */
-  /*    much more efficient way than the traditional glyph image cache     */
-  /*    implemented by @FTC_ImageCache.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FTC_SBitCache
+   *
+   * @description:
+   *   A handle to a small bitmap cache.  These are special cache objects
+   *   used to store small glyph bitmaps (and anti-aliased pixmaps) in a much
+   *   more efficient way than the traditional glyph image cache implemented
+   *   by @FTC_ImageCache.
+   */
   typedef struct FTC_SBitCacheRec_*  FTC_SBitCache;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_SBitCache_New                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new cache to store small glyph bitmaps.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    manager :: A handle to the source cache manager.                   */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    acache  :: A handle to the new sbit cache.  NULL in case of error. */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_SBitCache_New
+   *
+   * @description:
+   *   Create a new cache to store small glyph bitmaps.
+   *
+   * @input:
+   *   manager ::
+   *     A handle to the source cache manager.
+   *
+   * @output:
+   *   acache ::
+   *     A handle to the new sbit cache.  `NULL` in case of error.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FTC_SBitCache_New( FTC_Manager     manager,
                      FTC_SBitCache  *acache );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_SBitCache_Lookup                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Look up a given small glyph bitmap in a given sbit cache and       */
-  /*    `lock' it to prevent its flushing from the cache until needed.     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    cache  :: A handle to the source sbit cache.                       */
-  /*                                                                       */
-  /*    type   :: A pointer to the glyph image type descriptor.            */
-  /*                                                                       */
-  /*    gindex :: The glyph index.                                         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    sbit   :: A handle to a small bitmap descriptor.                   */
-  /*                                                                       */
-  /*    anode  :: Used to return the address of the corresponding cache    */
-  /*              node after incrementing its reference count (see note    */
-  /*              below).                                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The small bitmap descriptor and its bit buffer are owned by the    */
-  /*    cache and should never be freed by the application.  They might    */
-  /*    as well disappear from memory on the next cache lookup, so don't   */
-  /*    treat them as persistent data.                                     */
-  /*                                                                       */
-  /*    The descriptor's `buffer' field is set to~0 to indicate a missing  */
-  /*    glyph bitmap.                                                      */
-  /*                                                                       */
-  /*    If `anode' is _not_ NULL, it receives the address of the cache     */
-  /*    node containing the bitmap, after increasing its reference count.  */
-  /*    This ensures that the node (as well as the image) will always be   */
-  /*    kept in the cache until you call @FTC_Node_Unref to `release' it.  */
-  /*                                                                       */
-  /*    If `anode' is NULL, the cache node is left unchanged, which means  */
-  /*    that the bitmap could be flushed out of the cache on the next      */
-  /*    call to one of the caching sub-system APIs.  Don't assume that it  */
-  /*    is persistent!                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_SBitCache_Lookup
+   *
+   * @description:
+   *   Look up a given small glyph bitmap in a given sbit cache and 'lock' it
+   *   to prevent its flushing from the cache until needed.
+   *
+   * @input:
+   *   cache ::
+   *     A handle to the source sbit cache.
+   *
+   *   type ::
+   *     A pointer to the glyph image type descriptor.
+   *
+   *   gindex ::
+   *     The glyph index.
+   *
+   * @output:
+   *   sbit ::
+   *     A handle to a small bitmap descriptor.
+   *
+   *   anode ::
+   *     Used to return the address of the corresponding cache node after
+   *     incrementing its reference count (see note below).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The small bitmap descriptor and its bit buffer are owned by the cache
+   *   and should never be freed by the application.  They might as well
+   *   disappear from memory on the next cache lookup, so don't treat them as
+   *   persistent data.
+   *
+   *   The descriptor's `buffer` field is set to~0 to indicate a missing
+   *   glyph bitmap.
+   *
+   *   If `anode` is _not_ `NULL`, it receives the address of the cache node
+   *   containing the bitmap, after increasing its reference count.  This
+   *   ensures that the node (as well as the image) will always be kept in
+   *   the cache until you call @FTC_Node_Unref to 'release' it.
+   *
+   *   If `anode` is `NULL`, the cache node is left unchanged, which means
+   *   that the bitmap could be flushed out of the cache on the next call to
+   *   one of the caching sub-system APIs.  Don't assume that it is
+   *   persistent!
+   */
   FT_EXPORT( FT_Error )
   FTC_SBitCache_Lookup( FTC_SBitCache    cache,
                         FTC_ImageType    type,
@@ -976,53 +1017,58 @@ FT_BEGIN_HEADER
                         FTC_Node        *anode );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_SBitCache_LookupScaler                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A variant of @FTC_SBitCache_Lookup that uses an @FTC_ScalerRec     */
-  /*    to specify the face ID and its size.                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    cache      :: A handle to the source sbit cache.                   */
-  /*                                                                       */
-  /*    scaler     :: A pointer to the scaler descriptor.                  */
-  /*                                                                       */
-  /*    load_flags :: The corresponding load flags.                        */
-  /*                                                                       */
-  /*    gindex     :: The glyph index.                                     */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    sbit       :: A handle to a small bitmap descriptor.               */
-  /*                                                                       */
-  /*    anode      :: Used to return the address of the corresponding      */
-  /*                  cache node after incrementing its reference count    */
-  /*                  (see note below).                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The small bitmap descriptor and its bit buffer are owned by the    */
-  /*    cache and should never be freed by the application.  They might    */
-  /*    as well disappear from memory on the next cache lookup, so don't   */
-  /*    treat them as persistent data.                                     */
-  /*                                                                       */
-  /*    The descriptor's `buffer' field is set to~0 to indicate a missing  */
-  /*    glyph bitmap.                                                      */
-  /*                                                                       */
-  /*    If `anode' is _not_ NULL, it receives the address of the cache     */
-  /*    node containing the bitmap, after increasing its reference count.  */
-  /*    This ensures that the node (as well as the image) will always be   */
-  /*    kept in the cache until you call @FTC_Node_Unref to `release' it.  */
-  /*                                                                       */
-  /*    If `anode' is NULL, the cache node is left unchanged, which means  */
-  /*    that the bitmap could be flushed out of the cache on the next      */
-  /*    call to one of the caching sub-system APIs.  Don't assume that it  */
-  /*    is persistent!                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FTC_SBitCache_LookupScaler
+   *
+   * @description:
+   *   A variant of @FTC_SBitCache_Lookup that uses an @FTC_ScalerRec to
+   *   specify the face ID and its size.
+   *
+   * @input:
+   *   cache ::
+   *     A handle to the source sbit cache.
+   *
+   *   scaler ::
+   *     A pointer to the scaler descriptor.
+   *
+   *   load_flags ::
+   *     The corresponding load flags.
+   *
+   *   gindex ::
+   *     The glyph index.
+   *
+   * @output:
+   *   sbit ::
+   *     A handle to a small bitmap descriptor.
+   *
+   *   anode ::
+   *     Used to return the address of the corresponding cache node after
+   *     incrementing its reference count (see note below).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The small bitmap descriptor and its bit buffer are owned by the cache
+   *   and should never be freed by the application.  They might as well
+   *   disappear from memory on the next cache lookup, so don't treat them as
+   *   persistent data.
+   *
+   *   The descriptor's `buffer` field is set to~0 to indicate a missing
+   *   glyph bitmap.
+   *
+   *   If `anode` is _not_ `NULL`, it receives the address of the cache node
+   *   containing the bitmap, after increasing its reference count.  This
+   *   ensures that the node (as well as the image) will always be kept in
+   *   the cache until you call @FTC_Node_Unref to 'release' it.
+   *
+   *   If `anode` is `NULL`, the cache node is left unchanged, which means
+   *   that the bitmap could be flushed out of the cache on the next call to
+   *   one of the caching sub-system APIs.  Don't assume that it is
+   *   persistent!
+   */
   FT_EXPORT( FT_Error )
   FTC_SBitCache_LookupScaler( FTC_SBitCache  cache,
                               FTC_Scaler     scaler,
diff --git a/thirdparty/freetype/include/freetype/ftcffdrv.h b/thirdparty/freetype/include/freetype/ftcffdrv.h
deleted file mode 100644
index 477b6ddb18..0000000000
--- a/thirdparty/freetype/include/freetype/ftcffdrv.h
+++ /dev/null
@@ -1,321 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcffdrv.h                                                             */
-/*                                                                         */
-/*    FreeType API for controlling the CFF driver (specification only).    */
-/*                                                                         */
-/*  Copyright 2013-2017 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef FTCFFDRV_H_
-#define FTCFFDRV_H_
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
-  /**************************************************************************
-   *
-   * @section:
-   *   cff_driver
-   *
-   * @title:
-   *   The CFF driver
-   *
-   * @abstract:
-   *   Controlling the CFF driver module.
-   *
-   * @description:
-   *   While FreeType's CFF driver doesn't expose API functions by itself,
-   *   it is possible to control its behaviour with @FT_Property_Set and
-   *   @FT_Property_Get.  The list below gives the available properties
-   *   together with the necessary macros and structures.
-   *
-   *   The CFF driver's module name is `cff'.
-   *
-   *   *Hinting* *and* *antialiasing* *principles* *of* *the* *new* *engine*
-   *
-   *   The rasterizer is positioning horizontal features (e.g., ascender
-   *   height & x-height, or crossbars) on the pixel grid and minimizing the
-   *   amount of antialiasing applied to them, while placing vertical
-   *   features (vertical stems) on the pixel grid without hinting, thus
-   *   representing the stem position and weight accurately.  Sometimes the
-   *   vertical stems may be only partially black.  In this context,
-   *   `antialiasing' means that stems are not positioned exactly on pixel
-   *   borders, causing a fuzzy appearance.
-   *
-   *   There are two principles behind this approach.
-   *
-   *   1) No hinting in the horizontal direction: Unlike `superhinted'
-   *   TrueType, which changes glyph widths to accommodate regular
-   *   inter-glyph spacing, Adobe's approach is `faithful to the design' in
-   *   representing both the glyph width and the inter-glyph spacing
-   *   designed for the font.  This makes the screen display as close as it
-   *   can be to the result one would get with infinite resolution, while
-   *   preserving what is considered the key characteristics of each glyph.
-   *   Note that the distances between unhinted and grid-fitted positions at
-   *   small sizes are comparable to kerning values and thus would be
-   *   noticeable (and distracting) while reading if hinting were applied.
-   *
-   *   One of the reasons to not hint horizontally is antialiasing for LCD
-   *   screens: The pixel geometry of modern displays supplies three
-   *   vertical sub-pixels as the eye moves horizontally across each visible
-   *   pixel.  On devices where we can be certain this characteristic is
-   *   present a rasterizer can take advantage of the sub-pixels to add
-   *   increments of weight.  In Western writing systems this turns out to
-   *   be the more critical direction anyway; the weights and spacing of
-   *   vertical stems (see above) are central to Armenian, Cyrillic, Greek,
-   *   and Latin type designs.  Even when the rasterizer uses greyscale
-   *   antialiasing instead of color (a necessary compromise when one
-   *   doesn't know the screen characteristics), the unhinted vertical
-   *   features preserve the design's weight and spacing much better than
-   *   aliased type would.
-   *
-   *   2) Alignment in the vertical direction: Weights and spacing along the
-   *   y~axis are less critical; what is much more important is the visual
-   *   alignment of related features (like cap-height and x-height).  The
-   *   sense of alignment for these is enhanced by the sharpness of grid-fit
-   *   edges, while the cruder vertical resolution (full pixels instead of
-   *   1/3 pixels) is less of a problem.
-   *
-   *   On the technical side, horizontal alignment zones for ascender,
-   *   x-height, and other important height values (traditionally called
-   *   `blue zones') as defined in the font are positioned independently,
-   *   each being rounded to the nearest pixel edge, taking care of
-   *   overshoot suppression at small sizes, stem darkening, and scaling.
-   *
-   *   Hstems (this is, hint values defined in the font to help align
-   *   horizontal features) that fall within a blue zone are said to be
-   *   `captured' and are aligned to that zone.  Uncaptured stems are moved
-   *   in one of four ways, top edge up or down, bottom edge up or down.
-   *   Unless there are conflicting hstems, the smallest movement is taken
-   *   to minimize distortion.
-   *
-   * @order:
-   *   hinting-engine[cff]
-   *   no-stem-darkening[cff]
-   *   darkening-parameters[cff]
-   *   random-seed
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   hinting-engine[cff]
-   *
-   * @description:
-   *   Thanks to Adobe, which contributed a new hinting (and parsing)
-   *   engine, an application can select between `freetype' and `adobe' if
-   *   compiled with CFF_CONFIG_OPTION_OLD_ENGINE.  If this configuration
-   *   macro isn't defined, `hinting-engine' does nothing.
-   *
-   *   The default engine is `freetype' if CFF_CONFIG_OPTION_OLD_ENGINE is
-   *   defined, and `adobe' otherwise.
-   *
-   *   The following example code demonstrates how to select Adobe's hinting
-   *   engine (omitting the error handling).
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_UInt     hinting_engine = FT_CFF_HINTING_ADOBE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "cff",
-   *                               "hinting-engine", &hinting_engine );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values `adobe' or `freetype').
-   */
-
-
-  /**************************************************************************
-   *
-   * @enum:
-   *   FT_CFF_HINTING_XXX
-   *
-   * @description:
-   *   A list of constants used for the @hinting-engine[cff] property to
-   *   select the hinting engine for CFF fonts.
-   *
-   * @values:
-   *   FT_CFF_HINTING_FREETYPE ::
-   *     Use the old FreeType hinting engine.
-   *
-   *   FT_CFF_HINTING_ADOBE ::
-   *     Use the hinting engine contributed by Adobe.
-   *
-   */
-#define FT_CFF_HINTING_FREETYPE  0
-#define FT_CFF_HINTING_ADOBE     1
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   no-stem-darkening[cff]
-   *
-   * @description:
-   *   By default, the Adobe CFF engine darkens stems at smaller sizes,
-   *   regardless of hinting, to enhance contrast.  This feature requires
-   *   a rendering system with proper gamma correction.  Setting this
-   *   property, stem darkening gets switched off.
-   *
-   *   Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Bool     no_stem_darkening = TRUE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "cff",
-   *                               "no-stem-darkening", &no_stem_darkening );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values 1 and 0 for `on' and `off', respectively).
-   *   It can also be set per face using @FT_Face_Properties with
-   *   @FT_PARAM_TAG_STEM_DARKENING.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   darkening-parameters[cff]
-   *
-   * @description:
-   *   By default, the Adobe CFF engine darkens stems as follows (if the
-   *   `no-stem-darkening' property isn't set):
-   *
-   *   {
-   *     stem width <= 0.5px:   darkening amount = 0.4px
-   *     stem width  = 1px:     darkening amount = 0.275px
-   *     stem width  = 1.667px: darkening amount = 0.275px
-   *     stem width >= 2.333px: darkening amount = 0px
-   *   }
-   *
-   *   and piecewise linear in-between.  At configuration time, these four
-   *   control points can be set with the macro
-   *   `CFF_CONFIG_OPTION_DARKENING_PARAMETERS'.  At runtime, the control
-   *   points can be changed using the `darkening-parameters' property, as
-   *   the following example demonstrates.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Int      darken_params[8] = {  500, 300,   // x1, y1
-   *                                      1000, 200,   // x2, y2
-   *                                      1500, 100,   // x3, y3
-   *                                      2000,   0 }; // x4, y4
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "cff",
-   *                               "darkening-parameters", darken_params );
-   *   }
-   *
-   *   The x~values give the stem width, and the y~values the darkening
-   *   amount.  The unit is 1000th of pixels.  All coordinate values must be
-   *   positive; the x~values must be monotonically increasing; the
-   *   y~values must be monotonically decreasing and smaller than or
-   *   equal to 500 (corresponding to half a pixel); the slope of each
-   *   linear piece must be shallower than -1 (e.g., -.4).
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable, using eight comma-separated integers without spaces.  Here
-   *   the above example, using `\' to break the line for readability.
-   *
-   *   {
-   *     FREETYPE_PROPERTIES=\
-   *     cff:darkening-parameters=500,300,1000,200,1500,100,2000,0
-   *   }
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   random-seed
-   *
-   * @description:
-   *   By default, the seed value for the CFF `random' operator is set to a
-   *   random value.  However, mainly for debugging purposes, it is often
-   *   necessary to use a known value as a seed so that the pseudo-random
-   *   number sequences generated by `random' are repeatable.
-   *
-   *   The `random-seed' property does that.  Its argument is a signed 32bit
-   *   integer; if the value is zero or negative, the seed given by the
-   *   `intitialRandomSeed' private DICT operator in a CFF file gets used
-   *   (or a default value if there is no such operator).  If the value is
-   *   positive, use it instead of `initialRandomSeed', which is
-   *   consequently ignored.
-   *
-   * @note:
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable.  It can also be set per face using @FT_Face_Properties with
-   *   @FT_PARAM_TAG_RANDOM_SEED.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @constant:
-   *   FT_PARAM_TAG_RANDOM_SEED
-   *
-   * @description:
-   *   An @FT_Parameter tag to be used with @FT_Face_Properties.  The
-   *   corresponding 32bit signed integer argument overrides the CFF
-   *   module's random seed value with a face-specific one; see
-   *   @random-seed.
-   *
-   */
-#define FT_PARAM_TAG_RANDOM_SEED \
-          FT_MAKE_TAG( 's', 'e', 'e', 'd' )
-
-
-  /* */
-
-
-FT_END_HEADER
-
-
-#endif /* FTCFFDRV_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/ftchapters.h b/thirdparty/freetype/include/freetype/ftchapters.h
index 51257bb7ca..2ee26973e4 100644
--- a/thirdparty/freetype/include/freetype/ftchapters.h
+++ b/thirdparty/freetype/include/freetype/ftchapters.h
@@ -1,139 +1,145 @@
-/***************************************************************************/
-/*                                                                         */
-/* This file defines the structure of the FreeType reference.              */
-/* It is used by the python script that generates the HTML files.          */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    general_remarks                                                      */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    General Remarks                                                      */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    header_inclusion                                                     */
-/*    user_allocation                                                      */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    core_api                                                             */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    Core API                                                             */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    version                                                              */
-/*    basic_types                                                          */
-/*    base_interface                                                       */
-/*    glyph_variants                                                       */
-/*    glyph_management                                                     */
-/*    mac_specific                                                         */
-/*    sizes_management                                                     */
-/*    header_file_macros                                                   */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    format_specific                                                      */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    Format-Specific API                                                  */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    multiple_masters                                                     */
-/*    truetype_tables                                                      */
-/*    type1_tables                                                         */
-/*    sfnt_names                                                           */
-/*    bdf_fonts                                                            */
-/*    cid_fonts                                                            */
-/*    pfr_fonts                                                            */
-/*    winfnt_fonts                                                         */
-/*    font_formats                                                         */
-/*    gasp_table                                                           */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    module_specific                                                      */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    Controlling FreeType Modules                                         */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    auto_hinter                                                          */
-/*    cff_driver                                                           */
-/*    t1_cid_driver                                                        */
-/*    tt_driver                                                            */
-/*    pcf_driver                                                           */
-/*    properties                                                           */
-/*    parameter_tags                                                       */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    cache_subsystem                                                      */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    Cache Sub-System                                                     */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    cache_subsystem                                                      */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    support_api                                                          */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    Support API                                                          */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    computations                                                         */
-/*    list_processing                                                      */
-/*    outline_processing                                                   */
-/*    quick_advance                                                        */
-/*    bitmap_handling                                                      */
-/*    raster                                                               */
-/*    glyph_stroker                                                        */
-/*    system_interface                                                     */
-/*    module_management                                                    */
-/*    gzip                                                                 */
-/*    lzw                                                                  */
-/*    bzip2                                                                */
-/*    lcd_filtering                                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* <Chapter>                                                               */
-/*    error_codes                                                          */
-/*                                                                         */
-/* <Title>                                                                 */
-/*    Error Codes                                                          */
-/*                                                                         */
-/* <Sections>                                                              */
-/*    error_enumerations                                                   */
-/*    error_code_values                                                    */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * This file defines the structure of the FreeType reference.
+ * It is used by the python script that generates the HTML files.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   general_remarks
+   *
+   * @title:
+   *   General Remarks
+   *
+   * @sections:
+   *   header_inclusion
+   *   user_allocation
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   core_api
+   *
+   * @title:
+   *   Core API
+   *
+   * @sections:
+   *   version
+   *   basic_types
+   *   base_interface
+   *   glyph_variants
+   *   color_management
+   *   layer_management
+   *   glyph_management
+   *   mac_specific
+   *   sizes_management
+   *   header_file_macros
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   format_specific
+   *
+   * @title:
+   *   Format-Specific API
+   *
+   * @sections:
+   *   multiple_masters
+   *   truetype_tables
+   *   type1_tables
+   *   sfnt_names
+   *   bdf_fonts
+   *   cid_fonts
+   *   pfr_fonts
+   *   winfnt_fonts
+   *   font_formats
+   *   gasp_table
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   module_specific
+   *
+   * @title:
+   *   Controlling FreeType Modules
+   *
+   * @sections:
+   *   auto_hinter
+   *   cff_driver
+   *   t1_cid_driver
+   *   tt_driver
+   *   pcf_driver
+   *   properties
+   *   parameter_tags
+   *   lcd_rendering
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   cache_subsystem
+   *
+   * @title:
+   *   Cache Sub-System
+   *
+   * @sections:
+   *   cache_subsystem
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   support_api
+   *
+   * @title:
+   *   Support API
+   *
+   * @sections:
+   *   computations
+   *   list_processing
+   *   outline_processing
+   *   quick_advance
+   *   bitmap_handling
+   *   raster
+   *   glyph_stroker
+   *   system_interface
+   *   module_management
+   *   gzip
+   *   lzw
+   *   bzip2
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @chapter:
+   *   error_codes
+   *
+   * @title:
+   *   Error Codes
+   *
+   * @sections:
+   *   error_enumerations
+   *   error_code_values
+   *
+   */
+
+
+/* END */
diff --git a/thirdparty/freetype/include/freetype/ftcid.h b/thirdparty/freetype/include/freetype/ftcid.h
index 5e9100a67c..8eafc1c78f 100644
--- a/thirdparty/freetype/include/freetype/ftcid.h
+++ b/thirdparty/freetype/include/freetype/ftcid.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcid.h                                                                */
-/*                                                                         */
-/*    FreeType API for accessing CID font information (specification).     */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  Dereg Clegg and Michael Toftdal.                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcid.h
+ *
+ *   FreeType API for accessing CID font information (specification).
+ *
+ * Copyright (C) 2007-2019 by
+ * Dereg Clegg and Michael Toftdal.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTCID_H_
@@ -32,25 +32,25 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    cid_fonts                                                          */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    CID Fonts                                                          */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    CID-keyed font specific API.                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of CID-keyed font specific   */
-  /*    functions.                                                         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   cid_fonts
+   *
+   * @title:
+   *   CID Fonts
+   *
+   * @abstract:
+   *   CID-keyed font-specific API.
+   *
+   * @description:
+   *   This section contains the declaration of CID-keyed font-specific
+   *   functions.
+   *
+   */
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_CID_Registry_Ordering_Supplement
@@ -61,17 +61,17 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    face ::
-   *       A handle to the input face.
+   *      A handle to the input face.
    *
    * @output:
    *    registry ::
-   *       The registry, as a C~string, owned by the face.
+   *      The registry, as a C~string, owned by the face.
    *
    *    ordering ::
-   *       The ordering, as a C~string, owned by the face.
+   *      The ordering, as a C~string, owned by the face.
    *
    *    supplement ::
-   *       The supplement.
+   *      The supplement.
    *
    * @return:
    *    FreeType error code.  0~means success.
@@ -90,30 +90,30 @@ FT_BEGIN_HEADER
                                            FT_Int       *supplement );
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_CID_Is_Internally_CID_Keyed
    *
    * @description:
-   *    Retrieve the type of the input face, CID keyed or not.  In
-   *    contrast to the @FT_IS_CID_KEYED macro this function returns
-   *    successfully also for CID-keyed fonts in an SFNT wrapper.
+   *    Retrieve the type of the input face, CID keyed or not.  In contrast
+   *    to the @FT_IS_CID_KEYED macro this function returns successfully also
+   *    for CID-keyed fonts in an SFNT wrapper.
    *
    * @input:
    *    face ::
-   *       A handle to the input face.
+   *      A handle to the input face.
    *
    * @output:
    *    is_cid ::
-   *       The type of the face as an @FT_Bool.
+   *      The type of the face as an @FT_Bool.
    *
    * @return:
    *    FreeType error code.  0~means success.
    *
    * @note:
-   *    This function only works with CID faces and OpenType fonts,
-   *    returning an error otherwise.
+   *    This function only works with CID faces and OpenType fonts, returning
+   *    an error otherwise.
    *
    * @since:
    *    2.3.9
@@ -123,7 +123,7 @@ FT_BEGIN_HEADER
                                       FT_Bool  *is_cid );
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_CID_From_Glyph_Index
@@ -133,21 +133,21 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    face ::
-   *       A handle to the input face.
+   *      A handle to the input face.
    *
    *    glyph_index ::
-   *       The input glyph index.
+   *      The input glyph index.
    *
    * @output:
    *    cid ::
-   *       The CID as an @FT_UInt.
+   *      The CID as an @FT_UInt.
    *
    * @return:
    *    FreeType error code.  0~means success.
    *
    * @note:
-   *    This function only works with CID faces and OpenType fonts,
-   *    returning an error otherwise.
+   *    This function only works with CID faces and OpenType fonts, returning
+   *    an error otherwise.
    *
    * @since:
    *    2.3.9
diff --git a/thirdparty/freetype/include/freetype/ftcolor.h b/thirdparty/freetype/include/freetype/ftcolor.h
new file mode 100644
index 0000000000..cf18021953
--- /dev/null
+++ b/thirdparty/freetype/include/freetype/ftcolor.h
@@ -0,0 +1,311 @@
+/****************************************************************************
+ *
+ * ftcolor.h
+ *
+ *   FreeType's glyph color management (specification).
+ *
+ * Copyright (C) 2018-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef FTCOLOR_H_
+#define FTCOLOR_H_
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#ifdef FREETYPE_H
+#error "freetype.h of FreeType 1 has been loaded!"
+#error "Please fix the directory search order for header files"
+#error "so that freetype.h of FreeType 2 is found first."
+#endif
+
+
+FT_BEGIN_HEADER
+
+
+  /**************************************************************************
+   *
+   * @section:
+   *   color_management
+   *
+   * @title:
+   *   Glyph Color Management
+   *
+   * @abstract:
+   *   Retrieving and manipulating OpenType's 'CPAL' table data.
+   *
+   * @description:
+   *   The functions described here allow access and manipulation of color
+   *   palette entries in OpenType's 'CPAL' tables.
+   */
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Color
+   *
+   * @description:
+   *   This structure models a BGRA color value of a 'CPAL' palette entry.
+   *
+   *   The used color space is sRGB; the colors are not pre-multiplied, and
+   *   alpha values must be explicitly set.
+   *
+   * @fields:
+   *   blue ::
+   *     Blue value.
+   *
+   *   green ::
+   *     Green value.
+   *
+   *   red ::
+   *     Red value.
+   *
+   *   alpha ::
+   *     Alpha value, giving the red, green, and blue color's opacity.
+   *
+   * @since:
+   *   2.10
+   */
+  typedef struct  FT_Color_
+  {
+    FT_Byte  blue;
+    FT_Byte  green;
+    FT_Byte  red;
+    FT_Byte  alpha;
+
+  } FT_Color;
+
+
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_PALETTE_XXX
+   *
+   * @description:
+   *   A list of bit field constants used in the `palette_flags` array of the
+   *   @FT_Palette_Data structure to indicate for which background a palette
+   *   with a given index is usable.
+   *
+   * @values:
+   *   FT_PALETTE_FOR_LIGHT_BACKGROUND ::
+   *     The palette is appropriate to use when displaying the font on a
+   *     light background such as white.
+   *
+   *   FT_PALETTE_FOR_DARK_BACKGROUND ::
+   *     The palette is appropriate to use when displaying the font on a dark
+   *     background such as black.
+   *
+   * @since:
+   *   2.10
+   */
+#define FT_PALETTE_FOR_LIGHT_BACKGROUND  0x01
+#define FT_PALETTE_FOR_DARK_BACKGROUND   0x02
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Palette_Data
+   *
+   * @description:
+   *   This structure holds the data of the 'CPAL' table.
+   *
+   * @fields:
+   *   num_palettes ::
+   *     The number of palettes.
+   *
+   *   palette_name_ids ::
+   *     A read-only array of palette name IDs with `num_palettes` elements,
+   *     corresponding to entries like 'dark' or 'light' in the font's 'name'
+   *     table.
+   *
+   *     An empty name ID in the 'CPAL' table gets represented as value
+   *     0xFFFF.
+   *
+   *     `NULL` if the font's 'CPAL' table doesn't contain appropriate data.
+   *
+   *   palette_flags ::
+   *     A read-only array of palette flags with `num_palettes` elements.
+   *     Possible values are an ORed combination of
+   *     @FT_PALETTE_FOR_LIGHT_BACKGROUND and
+   *     @FT_PALETTE_FOR_DARK_BACKGROUND.
+   *
+   *     `NULL` if the font's 'CPAL' table doesn't contain appropriate data.
+   *
+   *   num_palette_entries ::
+   *     The number of entries in a single palette.  All palettes have the
+   *     same size.
+   *
+   *   palette_entry_name_ids ::
+   *     A read-only array of palette entry name IDs with
+   *     `num_palette_entries`.  In each palette, entries with the same index
+   *     have the same function.  For example, index~0 might correspond to
+   *     string 'outline' in the font's 'name' table to indicate that this
+   *     palette entry is used for outlines, index~1 might correspond to
+   *     'fill' to indicate the filling color palette entry, etc.
+   *
+   *     An empty entry name ID in the 'CPAL' table gets represented as value
+   *     0xFFFF.
+   *
+   *     `NULL` if the font's 'CPAL' table doesn't contain appropriate data.
+   *
+   * @note:
+   *   Use function @FT_Get_Sfnt_Name to map name IDs and entry name IDs to
+   *   name strings.
+   *
+   * @since:
+   *   2.10
+   */
+  typedef struct  FT_Palette_Data_ {
+    FT_UShort         num_palettes;
+    const FT_UShort*  palette_name_ids;
+    const FT_UShort*  palette_flags;
+
+    FT_UShort         num_palette_entries;
+    const FT_UShort*  palette_entry_name_ids;
+
+  } FT_Palette_Data;
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Palette_Data_Get
+   *
+   * @description:
+   *   Retrieve the face's color palette data.
+   *
+   * @input:
+   *   face ::
+   *     The source face handle.
+   *
+   * @output:
+   *   apalette ::
+   *     A pointer to an @FT_Palette_Data structure.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   All arrays in the returned @FT_Palette_Data structure are read-only.
+   *
+   *   This function always returns an error if the config macro
+   *   `TT_CONFIG_OPTION_COLOR_LAYERS` is not defined in `ftoption.h`.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_Palette_Data_Get( FT_Face           face,
+                       FT_Palette_Data  *apalette );
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Palette_Select
+   *
+   * @description:
+   *   This function has two purposes.
+   *
+   *   (1) It activates a palette for rendering color glyphs, and
+   *
+   *   (2) it retrieves all (unmodified) color entries of this palette.  This
+   *       function returns a read-write array, which means that a calling
+   *       application can modify the palette entries on demand.
+   *
+   * A corollary of (2) is that calling the function, then modifying some
+   * values, then calling the function again with the same arguments resets
+   * all color entries to the original 'CPAL' values; all user modifications
+   * are lost.
+   *
+   * @input:
+   *   face ::
+   *     The source face handle.
+   *
+   *   palette_index ::
+   *     The palette index.
+   *
+   * @output:
+   *   apalette ::
+   *     An array of color entries for a palette with index `palette_index`,
+   *     having `num_palette_entries` elements (as found in the
+   *     `FT_Palette_Data` structure).  If `apalette` is set to `NULL`, no
+   *     array gets returned (and no color entries can be modified).
+   *
+   *     In case the font doesn't support color palettes, `NULL` is returned.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The array pointed to by `apalette_entries` is owned and managed by
+   *   FreeType.
+   *
+   *   This function always returns an error if the config macro
+   *   `TT_CONFIG_OPTION_COLOR_LAYERS` is not defined in `ftoption.h`.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_Palette_Select( FT_Face     face,
+                     FT_UShort   palette_index,
+                     FT_Color*  *apalette );
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Palette_Set_Foreground_Color
+   *
+   * @description:
+   *   'COLR' uses palette index 0xFFFF to indicate a 'text foreground
+   *   color'.  This function sets this value.
+   *
+   * @input:
+   *   face ::
+   *     The source face handle.
+   *
+   *   foreground_color ::
+   *     An `FT_Color` structure to define the text foreground color.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   If this function isn't called, the text foreground color is set to
+   *   white opaque (BGRA value 0xFFFFFFFF) if
+   *   @FT_PALETTE_FOR_DARK_BACKGROUND is present for the current palette,
+   *   and black opaque (BGRA value 0x000000FF) otherwise, including the case
+   *   that no palette types are available in the 'CPAL' table.
+   *
+   *   This function always returns an error if the config macro
+   *   `TT_CONFIG_OPTION_COLOR_LAYERS` is not defined in `ftoption.h`.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_Palette_Set_Foreground_Color( FT_Face   face,
+                                   FT_Color  foreground_color );
+
+  /* */
+
+
+FT_END_HEADER
+
+#endif /* FTCOLOR_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/include/freetype/ftdriver.h b/thirdparty/freetype/include/freetype/ftdriver.h
index e90475b2af..497bde9f6e 100644
--- a/thirdparty/freetype/include/freetype/ftdriver.h
+++ b/thirdparty/freetype/include/freetype/ftdriver.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftdriver.h                                                             */
-/*                                                                         */
-/*    FreeType API for controlling driver modules (specification only).    */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftdriver.h
+ *
+ *   FreeType API for controlling driver modules (specification only).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTDRIVER_H_
@@ -50,8 +50,8 @@ FT_BEGIN_HEADER
    *   @FT_Property_Get.  The following lists the available properties
    *   together with the necessary macros and structures.
    *
-   *   Note that the auto-hinter's module name is `autofitter' for
-   *   historical reasons.
+   *   Note that the auto-hinter's module name is 'autofitter' for historical
+   *   reasons.
    *
    *   Available properties are @increase-x-height, @no-stem-darkening
    *   (experimental), @darkening-parameters (experimental), @warping
@@ -74,18 +74,18 @@ FT_BEGIN_HEADER
    *   Controlling the CFF driver module.
    *
    * @description:
-   *   While FreeType's CFF driver doesn't expose API functions by itself,
-   *   it is possible to control its behaviour with @FT_Property_Set and
+   *   While FreeType's CFF driver doesn't expose API functions by itself, it
+   *   is possible to control its behaviour with @FT_Property_Set and
    *   @FT_Property_Get.
    *
-   *   The CFF driver's module name is `cff'.
+   *   The CFF driver's module name is 'cff'.
    *
    *   Available properties are @hinting-engine, @no-stem-darkening,
    *   @darkening-parameters, and @random-seed, as documented in the
    *   @properties section.
    *
    *
-   *   *Hinting* *and* *antialiasing* *principles* *of* *the* *new* *engine*
+   *   **Hinting and antialiasing principles of the new engine**
    *
    *   The rasterizer is positioning horizontal features (e.g., ascender
    *   height & x-height, or crossbars) on the pixel grid and minimizing the
@@ -93,35 +93,34 @@ FT_BEGIN_HEADER
    *   features (vertical stems) on the pixel grid without hinting, thus
    *   representing the stem position and weight accurately.  Sometimes the
    *   vertical stems may be only partially black.  In this context,
-   *   `antialiasing' means that stems are not positioned exactly on pixel
+   *   'antialiasing' means that stems are not positioned exactly on pixel
    *   borders, causing a fuzzy appearance.
    *
    *   There are two principles behind this approach.
    *
-   *   1) No hinting in the horizontal direction: Unlike `superhinted'
+   *   1) No hinting in the horizontal direction: Unlike 'superhinted'
    *   TrueType, which changes glyph widths to accommodate regular
-   *   inter-glyph spacing, Adobe's approach is `faithful to the design' in
-   *   representing both the glyph width and the inter-glyph spacing
-   *   designed for the font.  This makes the screen display as close as it
-   *   can be to the result one would get with infinite resolution, while
-   *   preserving what is considered the key characteristics of each glyph.
-   *   Note that the distances between unhinted and grid-fitted positions at
-   *   small sizes are comparable to kerning values and thus would be
-   *   noticeable (and distracting) while reading if hinting were applied.
+   *   inter-glyph spacing, Adobe's approach is 'faithful to the design' in
+   *   representing both the glyph width and the inter-glyph spacing designed
+   *   for the font.  This makes the screen display as close as it can be to
+   *   the result one would get with infinite resolution, while preserving
+   *   what is considered the key characteristics of each glyph.  Note that
+   *   the distances between unhinted and grid-fitted positions at small
+   *   sizes are comparable to kerning values and thus would be noticeable
+   *   (and distracting) while reading if hinting were applied.
    *
    *   One of the reasons to not hint horizontally is antialiasing for LCD
-   *   screens: The pixel geometry of modern displays supplies three
-   *   vertical subpixels as the eye moves horizontally across each visible
-   *   pixel.  On devices where we can be certain this characteristic is
-   *   present a rasterizer can take advantage of the subpixels to add
-   *   increments of weight.  In Western writing systems this turns out to
-   *   be the more critical direction anyway; the weights and spacing of
-   *   vertical stems (see above) are central to Armenian, Cyrillic, Greek,
-   *   and Latin type designs.  Even when the rasterizer uses greyscale
-   *   antialiasing instead of color (a necessary compromise when one
-   *   doesn't know the screen characteristics), the unhinted vertical
-   *   features preserve the design's weight and spacing much better than
-   *   aliased type would.
+   *   screens: The pixel geometry of modern displays supplies three vertical
+   *   subpixels as the eye moves horizontally across each visible pixel.  On
+   *   devices where we can be certain this characteristic is present a
+   *   rasterizer can take advantage of the subpixels to add increments of
+   *   weight.  In Western writing systems this turns out to be the more
+   *   critical direction anyway; the weights and spacing of vertical stems
+   *   (see above) are central to Armenian, Cyrillic, Greek, and Latin type
+   *   designs.  Even when the rasterizer uses greyscale antialiasing instead
+   *   of color (a necessary compromise when one doesn't know the screen
+   *   characteristics), the unhinted vertical features preserve the design's
+   *   weight and spacing much better than aliased type would.
    *
    *   2) Alignment in the vertical direction: Weights and spacing along the
    *   y~axis are less critical; what is much more important is the visual
@@ -132,16 +131,16 @@ FT_BEGIN_HEADER
    *
    *   On the technical side, horizontal alignment zones for ascender,
    *   x-height, and other important height values (traditionally called
-   *   `blue zones') as defined in the font are positioned independently,
-   *   each being rounded to the nearest pixel edge, taking care of
-   *   overshoot suppression at small sizes, stem darkening, and scaling.
+   *   'blue zones') as defined in the font are positioned independently,
+   *   each being rounded to the nearest pixel edge, taking care of overshoot
+   *   suppression at small sizes, stem darkening, and scaling.
    *
    *   Hstems (this is, hint values defined in the font to help align
    *   horizontal features) that fall within a blue zone are said to be
-   *   `captured' and are aligned to that zone.  Uncaptured stems are moved
+   *   'captured' and are aligned to that zone.  Uncaptured stems are moved
    *   in one of four ways, top edge up or down, bottom edge up or down.
-   *   Unless there are conflicting hstems, the smallest movement is taken
-   *   to minimize distortion.
+   *   Unless there are conflicting hstems, the smallest movement is taken to
+   *   minimize distortion.
    *
    */
 
@@ -158,13 +157,13 @@ FT_BEGIN_HEADER
    *   Controlling the PCF driver module.
    *
    * @description:
-   *   While FreeType's PCF driver doesn't expose API functions by itself,
-   *   it is possible to control its behaviour with @FT_Property_Set and
+   *   While FreeType's PCF driver doesn't expose API functions by itself, it
+   *   is possible to control its behaviour with @FT_Property_Set and
    *   @FT_Property_Get.  Right now, there is a single property
    *   @no-long-family-names available if FreeType is compiled with
    *   PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
    *
-   *   The PCF driver's module name is `pcf'.
+   *   The PCF driver's module name is 'pcf'.
    *
    */
 
@@ -187,15 +186,15 @@ FT_BEGIN_HEADER
    *   Behind the scenes, both drivers use the Adobe CFF engine for hinting;
    *   however, the used properties must be specified separately.
    *
-   *   The Type~1 driver's module name is `type1'; the CID driver's module
-   *   name is `t1cid'.
+   *   The Type~1 driver's module name is 'type1'; the CID driver's module
+   *   name is 't1cid'.
    *
    *   Available properties are @hinting-engine, @no-stem-darkening,
    *   @darkening-parameters, and @random-seed, as documented in the
    *   @properties section.
    *
-   *   Please see the @cff_driver section for more details on the new
-   *   hinting engine.
+   *   Please see the @cff_driver section for more details on the new hinting
+   *   engine.
    *
    */
 
@@ -217,7 +216,7 @@ FT_BEGIN_HEADER
    *   and @FT_Property_Get.  The following lists the available properties
    *   together with the necessary macros and structures.
    *
-   *   The TrueType driver's module name is `truetype'.
+   *   The TrueType driver's module name is 'truetype'.
    *
    *   A single property @interpreter-version is available, as documented in
    *   the @properties section.
@@ -225,36 +224,36 @@ FT_BEGIN_HEADER
    *   We start with a list of definitions, kindly provided by Greg
    *   Hitchcock.
    *
-   *   _Bi-Level_ _Rendering_
+   *   _Bi-Level Rendering_
    *
    *   Monochromatic rendering, exclusively used in the early days of
    *   TrueType by both Apple and Microsoft.  Microsoft's GDI interface
    *   supported hinting of the right-side bearing point, such that the
    *   advance width could be non-linear.  Most often this was done to
    *   achieve some level of glyph symmetry.  To enable reasonable
-   *   performance (e.g., not having to run hinting on all glyphs just to
-   *   get the widths) there was a bit in the head table indicating if the
-   *   side bearing was hinted, and additional tables, `hdmx' and `LTSH', to
-   *   cache hinting widths across multiple sizes and device aspect ratios.
+   *   performance (e.g., not having to run hinting on all glyphs just to get
+   *   the widths) there was a bit in the head table indicating if the side
+   *   bearing was hinted, and additional tables, 'hdmx' and 'LTSH', to cache
+   *   hinting widths across multiple sizes and device aspect ratios.
    *
-   *   _Font_ _Smoothing_
+   *   _Font Smoothing_
    *
    *   Microsoft's GDI implementation of anti-aliasing.  Not traditional
    *   anti-aliasing as the outlines were hinted before the sampling.  The
    *   widths matched the bi-level rendering.
    *
-   *   _ClearType_ _Rendering_
+   *   _ClearType Rendering_
    *
    *   Technique that uses physical subpixels to improve rendering on LCD
    *   (and other) displays.  Because of the higher resolution, many methods
-   *   of improving symmetry in glyphs through hinting the right-side
-   *   bearing were no longer necessary.  This lead to what GDI calls
-   *   `natural widths' ClearType, see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec21.  Since hinting
+   *   of improving symmetry in glyphs through hinting the right-side bearing
+   *   were no longer necessary.  This lead to what GDI calls 'natural
+   *   widths' ClearType, see
+   *   http://rastertragedy.com/RTRCh4.htm#Sec21.  Since hinting
    *   has extra resolution, most non-linearity went away, but it is still
    *   possible for hints to change the advance widths in this mode.
    *
-   *   _ClearType_ _Compatible_ _Widths_
+   *   _ClearType Compatible Widths_
    *
    *   One of the earliest challenges with ClearType was allowing the
    *   implementation in GDI to be selected without requiring all UI and
@@ -263,41 +262,41 @@ FT_BEGIN_HEADER
    *   to determine the width in bi-level rendering, and then re-run in
    *   ClearType, with the difference in widths being absorbed in the font
    *   hints for ClearType (mostly in the white space of hints); see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec20.  Somewhat by
+   *   http://rastertragedy.com/RTRCh4.htm#Sec20.  Somewhat by
    *   definition, compatible width ClearType allows for non-linear widths,
    *   but only when the bi-level version has non-linear widths.
    *
-   *   _ClearType_ _Subpixel_ _Positioning_
+   *   _ClearType Subpixel Positioning_
    *
    *   One of the nice benefits of ClearType is the ability to more crisply
    *   display fractional widths; unfortunately, the GDI model of integer
    *   bitmaps did not support this.  However, the WPF and Direct Write
-   *   frameworks do support fractional widths.  DWrite calls this `natural
-   *   mode', not to be confused with GDI's `natural widths'.  Subpixel
+   *   frameworks do support fractional widths.  DWrite calls this 'natural
+   *   mode', not to be confused with GDI's 'natural widths'.  Subpixel
    *   positioning, in the current implementation of Direct Write,
    *   unfortunately does not support hinted advance widths, see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec22.  Note that the
+   *   http://rastertragedy.com/RTRCh4.htm#Sec22.  Note that the
    *   TrueType interpreter fully allows the advance width to be adjusted in
    *   this mode, just the DWrite client will ignore those changes.
    *
-   *   _ClearType_ _Backward_ _Compatibility_
+   *   _ClearType Backward Compatibility_
    *
    *   This is a set of exceptions made in the TrueType interpreter to
    *   minimize hinting techniques that were problematic with the extra
    *   resolution of ClearType; see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec1 and
+   *   http://rastertragedy.com/RTRCh4.htm#Sec1 and
    *   https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx.
-   *   This technique is not to be confused with ClearType compatible
-   *   widths.  ClearType backward compatibility has no direct impact on
-   *   changing advance widths, but there might be an indirect impact on
-   *   disabling some deltas.  This could be worked around in backward
-   *   compatibility mode.
+   *   This technique is not to be confused with ClearType compatible widths.
+   *   ClearType backward compatibility has no direct impact on changing
+   *   advance widths, but there might be an indirect impact on disabling
+   *   some deltas.  This could be worked around in backward compatibility
+   *   mode.
    *
-   *   _Native_ _ClearType_ _Mode_
+   *   _Native ClearType Mode_
    *
-   *   (Not to be confused with `natural widths'.)  This mode removes all
-   *   the exceptions in the TrueType interpreter when running with
-   *   ClearType.  Any issues on widths would still apply, though.
+   *   (Not to be confused with 'natural widths'.)  This mode removes all the
+   *   exceptions in the TrueType interpreter when running with ClearType.
+   *   Any issues on widths would still apply, though.
    *
    */
 
@@ -328,8 +327,8 @@ FT_BEGIN_HEADER
    *   FT_HINTING_XXX
    *
    * @description:
-   *   A list of constants used for the @hinting-engine property to
-   *   select the hinting engine for CFF, Type~1, and CID fonts.
+   *   A list of constants used for the @hinting-engine property to select
+   *   the hinting engine for CFF, Type~1, and CID fonts.
    *
    * @values:
    *   FT_HINTING_FREETYPE ::
@@ -356,45 +355,46 @@ FT_BEGIN_HEADER
    *   hinting-engine
    *
    * @description:
-   *   Thanks to Adobe, which contributed a new hinting (and parsing)
-   *   engine, an application can select between `freetype' and `adobe' if
-   *   compiled with CFF_CONFIG_OPTION_OLD_ENGINE.  If this configuration
-   *   macro isn't defined, `hinting-engine' does nothing.
+   *   Thanks to Adobe, which contributed a new hinting (and parsing) engine,
+   *   an application can select between 'freetype' and 'adobe' if compiled
+   *   with `CFF_CONFIG_OPTION_OLD_ENGINE`.  If this configuration macro
+   *   isn't defined, 'hinting-engine' does nothing.
    *
    *   The same holds for the Type~1 and CID modules if compiled with
-   *   T1_CONFIG_OPTION_OLD_ENGINE.
+   *   `T1_CONFIG_OPTION_OLD_ENGINE`.
    *
-   *   For the `cff' module, the default engine is `freetype' if
-   *   CFF_CONFIG_OPTION_OLD_ENGINE is defined, and `adobe' otherwise.
+   *   For the 'cff' module, the default engine is 'freetype' if
+   *   `CFF_CONFIG_OPTION_OLD_ENGINE` is defined, and 'adobe' otherwise.
    *
-   *   For both the `type1' and `t1cid' modules, the default engine is
-   *   `freetype' if T1_CONFIG_OPTION_OLD_ENGINE is defined, and `adobe'
+   *   For both the 'type1' and 't1cid' modules, the default engine is
+   *   'freetype' if `T1_CONFIG_OPTION_OLD_ENGINE` is defined, and 'adobe'
    *   otherwise.
    *
+   * @note:
+   *   This property can be used with @FT_Property_Get also.
+   *
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
+   *   variable (using values 'adobe' or 'freetype').
+   *
+   * @example:
    *   The following example code demonstrates how to select Adobe's hinting
-   *   engine for the `cff' module (omitting the error handling).
+   *   engine for the 'cff' module (omitting the error handling).
    *
-   *   {
+   *   ```
    *     FT_Library  library;
-   *     FT_UInt     hinting_engine = FT_CFF_HINTING_ADOBE;
+   *     FT_UInt     hinting_engine = FT_HINTING_ADOBE;
    *
    *
    *     FT_Init_FreeType( &library );
    *
    *     FT_Property_Set( library, "cff",
    *                               "hinting-engine", &hinting_engine );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values `adobe' or `freetype').
+   *   ```
    *
    * @since:
-   *   2.4.12 (for `cff' module)
+   *   2.4.12 (for 'cff' module)
    *
-   *   2.9 (for `type1' and `t1cid' modules)
+   *   2.9 (for 'type1' and 't1cid' modules)
    *
    */
 
@@ -405,10 +405,10 @@ FT_BEGIN_HEADER
    *   no-stem-darkening
    *
    * @description:
-   *   All glyphs that pass through the auto-hinter will be emboldened
-   *   unless this property is set to TRUE.  The same is true for the CFF,
-   *   Type~1, and CID font modules if the `Adobe' engine is selected (which
-   *   is the default).
+   *   All glyphs that pass through the auto-hinter will be emboldened unless
+   *   this property is set to TRUE.  The same is true for the CFF, Type~1,
+   *   and CID font modules if the 'Adobe' engine is selected (which is the
+   *   default).
    *
    *   Stem darkening emboldens glyphs at smaller sizes to make them more
    *   readable on common low-DPI screens when using linear alpha blending
@@ -419,30 +419,38 @@ FT_BEGIN_HEADER
    *   Gamma correction essentially lightens fonts since shades of grey are
    *   shifted to higher pixel values (=~higher brightness) to match the
    *   original intention to the reality of our screens.  The side-effect is
-   *   that glyphs `thin out'.  Mac OS~X and Adobe's proprietary font
+   *   that glyphs 'thin out'.  Mac OS~X and Adobe's proprietary font
    *   rendering library implement a counter-measure: stem darkening at
    *   smaller sizes where shades of gray dominate.  By emboldening a glyph
    *   slightly in relation to its pixel size, individual pixels get higher
-   *   coverage of filled-in outlines and are therefore `blacker'.  This
-   *   counteracts the `thinning out' of glyphs, making text remain readable
+   *   coverage of filled-in outlines and are therefore 'blacker'.  This
+   *   counteracts the 'thinning out' of glyphs, making text remain readable
    *   at smaller sizes.
    *
    *   By default, the Adobe engines for CFF, Type~1, and CID fonts darken
-   *   stems at smaller sizes, regardless of hinting, to enhance contrast. 
+   *   stems at smaller sizes, regardless of hinting, to enhance contrast.
    *   Setting this property, stem darkening gets switched off.
    *
-   *   For the auto-hinter, stem-darkening is experimental currently and
-   *   thus switched off by default (this is, `no-stem-darkening' is set to
-   *   TRUE by default).  Total consistency with the CFF driver is not
-   *   achieved right now because the emboldening method differs and glyphs
-   *   must be scaled down on the Y-axis to keep outline points inside their
+   *   For the auto-hinter, stem-darkening is experimental currently and thus
+   *   switched off by default (this is, `no-stem-darkening` is set to TRUE
+   *   by default).  Total consistency with the CFF driver is not achieved
+   *   right now because the emboldening method differs and glyphs must be
+   *   scaled down on the Y-axis to keep outline points inside their
    *   precomputed blue zones.  The smaller the size (especially 9ppem and
    *   down), the higher the loss of emboldening versus the CFF driver.
    *
-   *   Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is
-   *   set.
+   *   Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set.
+   *
+   * @note:
+   *   This property can be used with @FT_Property_Get also.
+   *
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
+   *   variable (using values 1 and 0 for 'on' and 'off', respectively).  It
+   *   can also be set per face using @FT_Face_Properties with
+   *   @FT_PARAM_TAG_STEM_DARKENING.
    *
-   *   {
+   * @example:
+   *   ```
    *     FT_Library  library;
    *     FT_Bool     no_stem_darkening = TRUE;
    *
@@ -451,22 +459,14 @@ FT_BEGIN_HEADER
    *
    *     FT_Property_Set( library, "cff",
    *                               "no-stem-darkening", &no_stem_darkening );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values 1 and 0 for `on' and `off', respectively).
-   *   It can also be set per face using @FT_Face_Properties with
-   *   @FT_PARAM_TAG_STEM_DARKENING.
+   *   ```
    *
    * @since:
-   *   2.4.12 (for `cff' module)
+   *   2.4.12 (for 'cff' module)
    *
-   *   2.6.2 (for `autofitter' module)
+   *   2.6.2 (for 'autofitter' module)
    *
-   *   2.9 (for `type1' and `t1cid' modules)
+   *   2.9 (for 'type1' and 't1cid' modules)
    *
    */
 
@@ -478,43 +478,29 @@ FT_BEGIN_HEADER
    *
    * @description:
    *   By default, the Adobe hinting engine, as used by the CFF, Type~1, and
-   *   CID font drivers, darkens stems as follows (if the
-   *   `no-stem-darkening' property isn't set):
+   *   CID font drivers, darkens stems as follows (if the `no-stem-darkening`
+   *   property isn't set):
    *
-   *   {
+   *   ```
    *     stem width <= 0.5px:   darkening amount = 0.4px
    *     stem width  = 1px:     darkening amount = 0.275px
    *     stem width  = 1.667px: darkening amount = 0.275px
    *     stem width >= 2.333px: darkening amount = 0px
-   *   }
+   *   ```
    *
    *   and piecewise linear in-between.  At configuration time, these four
    *   control points can be set with the macro
-   *   `CFF_CONFIG_OPTION_DARKENING_PARAMETERS'; the CFF, Type~1, and CID
+   *   `CFF_CONFIG_OPTION_DARKENING_PARAMETERS`; the CFF, Type~1, and CID
    *   drivers share these values.  At runtime, the control points can be
-   *   changed using the `darkening-parameters' property, as the following
-   *   example demonstrates for the Type~1 driver.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Int      darken_params[8] = {  500, 300,   // x1, y1
-   *                                      1000, 200,   // x2, y2
-   *                                      1500, 100,   // x3, y3
-   *                                      2000,   0 }; // x4, y4
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "type1",
-   *                               "darkening-parameters", darken_params );
-   *   }
+   *   changed using the `darkening-parameters` property (see the example
+   *   below that demonstrates this for the Type~1 driver).
    *
    *   The x~values give the stem width, and the y~values the darkening
    *   amount.  The unit is 1000th of pixels.  All coordinate values must be
-   *   positive; the x~values must be monotonically increasing; the
-   *   y~values must be monotonically decreasing and smaller than or
-   *   equal to 500 (corresponding to half a pixel); the slope of each
-   *   linear piece must be shallower than -1 (e.g., -.4).
+   *   positive; the x~values must be monotonically increasing; the y~values
+   *   must be monotonically decreasing and smaller than or equal to 500
+   *   (corresponding to half a pixel); the slope of each linear piece must
+   *   be shallower than -1 (e.g., -.4).
    *
    *   The auto-hinter provides this property, too, as an experimental
    *   feature.  See @no-stem-darkening for more.
@@ -522,21 +508,36 @@ FT_BEGIN_HEADER
    * @note:
    *   This property can be used with @FT_Property_Get also.
    *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
    *   variable, using eight comma-separated integers without spaces.  Here
-   *   the above example, using `\' to break the line for readability.
+   *   the above example, using `\` to break the line for readability.
    *
-   *   {
+   *   ```
    *     FREETYPE_PROPERTIES=\
    *     type1:darkening-parameters=500,300,1000,200,1500,100,2000,0
-   *   }
+   *   ```
+   *
+   * @example:
+   *   ```
+   *     FT_Library  library;
+   *     FT_Int      darken_params[8] = {  500, 300,   // x1, y1
+   *                                      1000, 200,   // x2, y2
+   *                                      1500, 100,   // x3, y3
+   *                                      2000,   0 }; // x4, y4
+   *
+   *
+   *     FT_Init_FreeType( &library );
+   *
+   *     FT_Property_Set( library, "type1",
+   *                               "darkening-parameters", darken_params );
+   *   ```
    *
    * @since:
-   *   2.5.1 (for `cff' module)
+   *   2.5.1 (for 'cff' module)
    *
-   *   2.6.2 (for `autofitter' module)
+   *   2.6.2 (for 'autofitter' module)
    *
-   *   2.9 (for `type1' and `t1cid' modules)
+   *   2.9 (for 'type1' and 't1cid' modules)
    *
    */
 
@@ -547,29 +548,29 @@ FT_BEGIN_HEADER
    *   random-seed
    *
    * @description:
-   *   By default, the seed value for the CFF `random' operator and the
-   *   similar `0 28 callothersubr pop' command for the Type~1 and CID
+   *   By default, the seed value for the CFF 'random' operator and the
+   *   similar '0 28 callothersubr pop' command for the Type~1 and CID
    *   drivers is set to a random value.  However, mainly for debugging
-   *   purposes, it is often necessary to use a known value as a seed so
-   *   that the pseudo-random number sequences generated by `random' are
+   *   purposes, it is often necessary to use a known value as a seed so that
+   *   the pseudo-random number sequences generated by 'random' are
    *   repeatable.
    *
-   *   The `random-seed' property does that.  Its argument is a signed 32bit
+   *   The `random-seed` property does that.  Its argument is a signed 32bit
    *   integer; if the value is zero or negative, the seed given by the
-   *   `intitialRandomSeed' private DICT operator in a CFF file gets used
-   *   (or a default value if there is no such operator).  If the value is
-   *   positive, use it instead of `initialRandomSeed', which is
-   *   consequently ignored.
+   *   `intitialRandomSeed` private DICT operator in a CFF file gets used (or
+   *   a default value if there is no such operator).  If the value is
+   *   positive, use it instead of `initialRandomSeed`, which is consequently
+   *   ignored.
    *
    * @note:
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
    *   variable.  It can also be set per face using @FT_Face_Properties with
    *   @FT_PARAM_TAG_RANDOM_SEED.
    *
    * @since:
-   *   2.8 (for `cff' module)
+   *   2.8 (for 'cff' module)
    *
-   *   2.9 (for `type1' and `t1cid' modules)
+   *   2.9 (for 'type1' and 't1cid' modules)
    *
    */
 
@@ -580,21 +581,28 @@ FT_BEGIN_HEADER
    *   no-long-family-names
    *
    * @description:
-   *   If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling
+   *   If `PCF_CONFIG_OPTION_LONG_FAMILY_NAMES` is active while compiling
    *   FreeType, the PCF driver constructs long family names.
    *
-   *   There are many PCF fonts just called `Fixed' which look completely
+   *   There are many PCF fonts just called 'Fixed' which look completely
    *   different, and which have nothing to do with each other.  When
-   *   selecting `Fixed' in KDE or Gnome one gets results that appear rather
-   *   random, the style changes often if one changes the size and one
-   *   cannot select some fonts at all.  The improve this situation, the PCF
-   *   module prepends the foundry name (plus a space) to the family name.
-   *   It also checks whether there are `wide' characters; all put together,
-   *   family names like `Sony Fixed' or `Misc Fixed Wide' are constructed.
+   *   selecting 'Fixed' in KDE or Gnome one gets results that appear rather
+   *   random, the style changes often if one changes the size and one cannot
+   *   select some fonts at all.  The improve this situation, the PCF module
+   *   prepends the foundry name (plus a space) to the family name.  It also
+   *   checks whether there are 'wide' characters; all put together, family
+   *   names like 'Sony Fixed' or 'Misc Fixed Wide' are constructed.
+   *
+   *   If `no-long-family-names` is set, this feature gets switched off.
    *
-   *   If `no-long-family-names' is set, this feature gets switched off.
+   * @note:
+   *   This property can be used with @FT_Property_Get also.
    *
-   *   {
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
+   *   variable (using values 1 and 0 for 'on' and 'off', respectively).
+   *
+   * @example:
+   *   ```
    *     FT_Library  library;
    *     FT_Bool     no_long_family_names = TRUE;
    *
@@ -604,13 +612,7 @@ FT_BEGIN_HEADER
    *     FT_Property_Set( library, "pcf",
    *                               "no-long-family-names",
    *                               &no_long_family_names );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values 1 and 0 for `on' and `off', respectively).
+   *   ```
    *
    * @since:
    *   2.8
@@ -626,8 +628,8 @@ FT_BEGIN_HEADER
    *   A list of constants used for the @interpreter-version property to
    *   select the hinting engine for Truetype fonts.
    *
-   *   The numeric value in the constant names represents the version
-   *   number as returned by the `GETINFO' bytecode instruction.
+   *   The numeric value in the constant names represents the version number
+   *   as returned by the 'GETINFO' bytecode instruction.
    *
    * @values:
    *   TT_INTERPRETER_VERSION_35 ::
@@ -638,38 +640,37 @@ FT_BEGIN_HEADER
    *     Version~38 corresponds to MS rasterizer v.1.9; it is roughly
    *     equivalent to the hinting provided by DirectWrite ClearType (as can
    *     be found, for example, in the Internet Explorer~9 running on
-   *     Windows~7).  It is used in FreeType to select the `Infinality'
-   *     subpixel hinting code.  The code may be removed in a future
-   *     version.
+   *     Windows~7).  It is used in FreeType to select the 'Infinality'
+   *     subpixel hinting code.  The code may be removed in a future version.
    *
    *   TT_INTERPRETER_VERSION_40 ::
    *     Version~40 corresponds to MS rasterizer v.2.1; it is roughly
    *     equivalent to the hinting provided by DirectWrite ClearType (as can
    *     be found, for example, in Microsoft's Edge Browser on Windows~10).
-   *     It is used in FreeType to select the `minimal' subpixel hinting
+   *     It is used in FreeType to select the 'minimal' subpixel hinting
    *     code, a stripped-down and higher performance version of the
-   *     `Infinality' code.
+   *     'Infinality' code.
    *
    * @note:
-   *   This property controls the behaviour of the bytecode interpreter
-   *   and thus how outlines get hinted.  It does *not* control how glyph
-   *   get rasterized!  In particular, it does not control subpixel color
+   *   This property controls the behaviour of the bytecode interpreter and
+   *   thus how outlines get hinted.  It does **not** control how glyph get
+   *   rasterized!  In particular, it does not control subpixel color
    *   filtering.
    *
    *   If FreeType has not been compiled with the configuration option
-   *   TT_CONFIG_OPTION_SUBPIXEL_HINTING, selecting version~38 or~40 causes
-   *   an `FT_Err_Unimplemented_Feature' error.
+   *   `TT_CONFIG_OPTION_SUBPIXEL_HINTING`, selecting version~38 or~40 causes
+   *   an `FT_Err_Unimplemented_Feature` error.
    *
-   *   Depending on the graphics framework, Microsoft uses different
-   *   bytecode and rendering engines.  As a consequence, the version
-   *   numbers returned by a call to the `GETINFO' bytecode instruction are
-   *   more convoluted than desired.
+   *   Depending on the graphics framework, Microsoft uses different bytecode
+   *   and rendering engines.  As a consequence, the version numbers returned
+   *   by a call to the 'GETINFO' bytecode instruction are more convoluted
+   *   than desired.
    *
-   *   Here are two tables that try to shed some light on the possible
-   *   values for the MS rasterizer engine, together with the additional
-   *   features introduced by it.
+   *   Here are two tables that try to shed some light on the possible values
+   *   for the MS rasterizer engine, together with the additional features
+   *   introduced by it.
    *
-   *   {
+   *   ```
    *     GETINFO framework               version feature
    *     -------------------------------------------------------------------
    *         3   GDI (Win 3.1),            v1.0  16-bit, first version
@@ -692,15 +693,15 @@ FT_BEGIN_HEADER
    *        40   GDI+ (after Win 7),       v2.1  Y-direction ClearType flag
    *             DWrite (Win 8)                    in GETINFO opcode,
    *                                             Gray ClearType
-   *   }
+   *   ```
    *
-   *   The `version' field gives a rough orientation only, since some
+   *   The 'version' field gives a rough orientation only, since some
    *   applications provided certain features much earlier (as an example,
    *   Microsoft Reader used subpixel and Y-direction ClearType already in
    *   Windows 2000).  Similarly, updates to a given framework might include
    *   improved hinting support.
    *
-   *   {
+   *   ```
    *      version   sampling          rendering        comment
    *               x        y       x           y
    *     --------------------------------------------------------------
@@ -710,38 +711,38 @@ FT_BEGIN_HEADER
    *       v1.9   high    high    color-filter  gray   Color ClearType
    *       v2.1   high    normal  gray          B/W    Gray ClearType
    *       v2.1   high    high    gray          gray   Gray ClearType
-   *   }
+   *   ```
    *
    *   Color and Gray ClearType are the two available variants of
-   *   `Y-direction ClearType', meaning grayscale rasterization along the
+   *   'Y-direction ClearType', meaning grayscale rasterization along the
    *   Y-direction; the name used in the TrueType specification for this
-   *   feature is `symmetric smoothing'.  `Classic ClearType' is the
-   *   original algorithm used before introducing a modified version in
-   *   Win~XP.  Another name for v1.6's grayscale rendering is `font
-   *   smoothing', and `Color ClearType' is sometimes also called `DWrite
-   *   ClearType'.  To differentiate between today's Color ClearType and the
-   *   earlier ClearType variant with B/W rendering along the vertical axis,
-   *   the latter is sometimes called `GDI ClearType'.
-   *
-   *   `Normal' and `high' sampling describe the (virtual) resolution to
-   *   access the rasterized outline after the hinting process.  `Normal'
+   *   feature is 'symmetric smoothing'.  'Classic ClearType' is the original
+   *   algorithm used before introducing a modified version in Win~XP.
+   *   Another name for v1.6's grayscale rendering is 'font smoothing', and
+   *   'Color ClearType' is sometimes also called 'DWrite ClearType'.  To
+   *   differentiate between today's Color ClearType and the earlier
+   *   ClearType variant with B/W rendering along the vertical axis, the
+   *   latter is sometimes called 'GDI ClearType'.
+   *
+   *   'Normal' and 'high' sampling describe the (virtual) resolution to
+   *   access the rasterized outline after the hinting process.  'Normal'
    *   means 1 sample per grid line (i.e., B/W).  In the current Microsoft
-   *   implementation, `high' means an extra virtual resolution of 16x16 (or
-   *   16x1) grid lines per pixel for bytecode instructions like `MIRP'.
+   *   implementation, 'high' means an extra virtual resolution of 16x16 (or
+   *   16x1) grid lines per pixel for bytecode instructions like 'MIRP'.
    *   After hinting, these 16 grid lines are mapped to 6x5 (or 6x1) grid
    *   lines for color filtering if Color ClearType is activated.
    *
-   *   Note that `Gray ClearType' is essentially the same as v1.6's
-   *   grayscale rendering.  However, the GETINFO instruction handles it
-   *   differently: v1.6 returns bit~12 (hinting for grayscale), while v2.1
-   *   returns bits~13 (hinting for ClearType), 18 (symmetrical smoothing),
-   *   and~19 (Gray ClearType).  Also, this mode respects bits 2 and~3 for
-   *   the version~1 gasp table exclusively (like Color ClearType), while
-   *   v1.6 only respects the values of version~0 (bits 0 and~1).
+   *   Note that 'Gray ClearType' is essentially the same as v1.6's grayscale
+   *   rendering.  However, the GETINFO instruction handles it differently:
+   *   v1.6 returns bit~12 (hinting for grayscale), while v2.1 returns
+   *   bits~13 (hinting for ClearType), 18 (symmetrical smoothing), and~19
+   *   (Gray ClearType).  Also, this mode respects bits 2 and~3 for the
+   *   version~1 gasp table exclusively (like Color ClearType), while v1.6
+   *   only respects the values of version~0 (bits 0 and~1).
    *
-   *   Keep in mind that the features of the above interpreter versions
-   *   might not map exactly to FreeType features or behavior because it is
-   *   a fundamentally different library with different internals.
+   *   Keep in mind that the features of the above interpreter versions might
+   *   not map exactly to FreeType features or behavior because it is a
+   *   fundamentally different library with different internals.
    *
    */
 #define TT_INTERPRETER_VERSION_35  35
@@ -755,33 +756,40 @@ FT_BEGIN_HEADER
    *   interpreter-version
    *
    * @description:
-   *   Currently, three versions are available, two representing the
-   *   bytecode interpreter with subpixel hinting support (old `Infinality'
-   *   code and new stripped-down and higher performance `minimal' code) and
-   *   one without, respectively.  The default is subpixel support if
-   *   TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel support
-   *   otherwise (since it isn't available then).
+   *   Currently, three versions are available, two representing the bytecode
+   *   interpreter with subpixel hinting support (old 'Infinality' code and
+   *   new stripped-down and higher performance 'minimal' code) and one
+   *   without, respectively.  The default is subpixel support if
+   *   `TT_CONFIG_OPTION_SUBPIXEL_HINTING` is defined, and no subpixel
+   *   support otherwise (since it isn't available then).
    *
    *   If subpixel hinting is on, many TrueType bytecode instructions behave
-   *   differently compared to B/W or grayscale rendering (except if `native
+   *   differently compared to B/W or grayscale rendering (except if 'native
    *   ClearType' is selected by the font).  Microsoft's main idea is to
    *   render at a much increased horizontal resolution, then sampling down
    *   the created output to subpixel precision.  However, many older fonts
-   *   are not suited to this and must be specially taken care of by
-   *   applying (hardcoded) tweaks in Microsoft's interpreter.
+   *   are not suited to this and must be specially taken care of by applying
+   *   (hardcoded) tweaks in Microsoft's interpreter.
    *
    *   Details on subpixel hinting and some of the necessary tweaks can be
    *   found in Greg Hitchcock's whitepaper at
-   *   `https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx'.
-   *   Note that FreeType currently doesn't really `subpixel hint' (6x1, 6x2,
+   *   'https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx'.
+   *   Note that FreeType currently doesn't really 'subpixel hint' (6x1, 6x2,
    *   or 6x5 supersampling) like discussed in the paper.  Depending on the
    *   chosen interpreter, it simply ignores instructions on vertical stems
    *   to arrive at very similar results.
    *
+   * @note:
+   *   This property can be used with @FT_Property_Get also.
+   *
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
+   *   variable (using values '35', '38', or '40').
+   *
+   * @example:
    *   The following example code demonstrates how to deactivate subpixel
    *   hinting (omitting the error handling).
    *
-   *   {
+   *   ```
    *     FT_Library  library;
    *     FT_Face     face;
    *     FT_UInt     interpreter_version = TT_INTERPRETER_VERSION_35;
@@ -792,13 +800,7 @@ FT_BEGIN_HEADER
    *     FT_Property_Set( library, "truetype",
    *                               "interpreter-version",
    *                               &interpreter_version );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values `35', `38', or `40').
+   *   ```
    *
    * @since:
    *   2.5
@@ -811,7 +813,7 @@ FT_BEGIN_HEADER
    *   glyph-to-script-map
    *
    * @description:
-   *   *Experimental* *only*
+   *   **Experimental only**
    *
    *   The auto-hinter provides various script modules to hint glyphs.
    *   Examples of supported scripts are Latin or CJK.  Before a glyph is
@@ -819,25 +821,26 @@ FT_BEGIN_HEADER
    *   the script is then determined based on Unicode character ranges, see
    *   below.
    *
-   *   OpenType fonts, however, often provide much more glyphs than
-   *   character codes (small caps, superscripts, ligatures, swashes, etc.),
-   *   to be controlled by so-called `features'.  Handling OpenType features
-   *   can be quite complicated and thus needs a separate library on top of
+   *   OpenType fonts, however, often provide much more glyphs than character
+   *   codes (small caps, superscripts, ligatures, swashes, etc.), to be
+   *   controlled by so-called 'features'.  Handling OpenType features can be
+   *   quite complicated and thus needs a separate library on top of
    *   FreeType.
    *
    *   The mapping between glyph indices and scripts (in the auto-hinter
-   *   sense, see the @FT_AUTOHINTER_SCRIPT_XXX values) is stored as an
-   *   array with `num_glyphs' elements, as found in the font's @FT_Face
-   *   structure.  The `glyph-to-script-map' property returns a pointer to
-   *   this array, which can be modified as needed.  Note that the
-   *   modification should happen before the first glyph gets processed by
-   *   the auto-hinter so that the global analysis of the font shapes
-   *   actually uses the modified mapping.
-   *
-   *   The following example code demonstrates how to access it (omitting
-   *   the error handling).
-   *
-   *   {
+   *   sense, see the @FT_AUTOHINTER_SCRIPT_XXX values) is stored as an array
+   *   with `num_glyphs` elements, as found in the font's @FT_Face structure.
+   *   The `glyph-to-script-map` property returns a pointer to this array,
+   *   which can be modified as needed.  Note that the modification should
+   *   happen before the first glyph gets processed by the auto-hinter so
+   *   that the global analysis of the font shapes actually uses the modified
+   *   mapping.
+   *
+   * @example:
+   *   The following example code demonstrates how to access it (omitting the
+   *   error handling).
+   *
+   *   ```
    *     FT_Library                library;
    *     FT_Face                   face;
    *     FT_Prop_GlyphToScriptMap  prop;
@@ -854,7 +857,7 @@ FT_BEGIN_HEADER
    *     // adjust `prop.map' as needed right here
    *
    *     FT_Load_Glyph( face, ..., FT_LOAD_FORCE_AUTOHINT );
-   *   }
+   *   ```
    *
    * @since:
    *   2.4.11
@@ -868,7 +871,7 @@ FT_BEGIN_HEADER
    *   FT_AUTOHINTER_SCRIPT_XXX
    *
    * @description:
-   *   *Experimental* *only*
+   *   **Experimental only**
    *
    *   A list of constants used for the @glyph-to-script-map property to
    *   specify the script submodule the auto-hinter should use for hinting a
@@ -879,14 +882,14 @@ FT_BEGIN_HEADER
    *     Don't auto-hint this glyph.
    *
    *   FT_AUTOHINTER_SCRIPT_LATIN ::
-   *     Apply the latin auto-hinter.  For the auto-hinter, `latin' is a
-   *     very broad term, including Cyrillic and Greek also since characters
-   *     from those scripts share the same design constraints.
+   *     Apply the latin auto-hinter.  For the auto-hinter, 'latin' is a very
+   *     broad term, including Cyrillic and Greek also since characters from
+   *     those scripts share the same design constraints.
    *
    *     By default, characters from the following Unicode ranges are
    *     assigned to this submodule.
    *
-   *     {
+   *     ```
    *       U+0020 - U+007F  // Basic Latin (no control characters)
    *       U+00A0 - U+00FF  // Latin-1 Supplement (no control characters)
    *       U+0100 - U+017F  // Latin Extended-A
@@ -915,7 +918,7 @@ FT_BEGIN_HEADER
    *       U+FB00 - U+FB06  // Alphab. Present. Forms (Latin Ligatures)
    *      U+1D400 - U+1D7FF // Mathematical Alphanumeric Symbols
    *      U+1F100 - U+1F1FF // Enclosed Alphanumeric Supplement
-   *     }
+   *     ```
    *
    *   FT_AUTOHINTER_SCRIPT_CJK ::
    *     Apply the CJK auto-hinter, covering Chinese, Japanese, Korean, old
@@ -924,7 +927,7 @@ FT_BEGIN_HEADER
    *     By default, characters from the following Unicode ranges are
    *     assigned to this submodule.
    *
-   *     {
+   *     ```
    *       U+1100 - U+11FF  // Hangul Jamo
    *       U+2E80 - U+2EFF  // CJK Radicals Supplement
    *       U+2F00 - U+2FDF  // Kangxi Radicals
@@ -957,7 +960,7 @@ FT_BEGIN_HEADER
    *      U+2A700 - U+2B73F // CJK Unified Ideographs Extension C
    *      U+2B740 - U+2B81F // CJK Unified Ideographs Extension D
    *      U+2F800 - U+2FA1F // CJK Compatibility Ideographs Supplement
-   *     }
+   *     ```
    *
    *   FT_AUTOHINTER_SCRIPT_INDIC ::
    *     Apply the indic auto-hinter, covering all major scripts from the
@@ -967,7 +970,7 @@ FT_BEGIN_HEADER
    *     By default, characters from the following Unicode ranges are
    *     assigned to this submodule.
    *
-   *     {
+   *     ```
    *       U+0900 - U+0DFF  // Indic Range
    *       U+0F00 - U+0FFF  // Tibetan
    *       U+1900 - U+194F  // Limbu
@@ -975,7 +978,7 @@ FT_BEGIN_HEADER
    *       U+A800 - U+A82F  // Syloti Nagri
    *       U+ABC0 - U+ABFF  // Meetei Mayek
    *      U+11800 - U+118DF // Sharada
-   *     }
+   *     ```
    *
    *     Note that currently Indic support is rudimentary only, missing blue
    *     zone support.
@@ -996,7 +999,7 @@ FT_BEGIN_HEADER
    *   FT_Prop_GlyphToScriptMap
    *
    * @description:
-   *   *Experimental* *only*
+   *   **Experimental only**
    *
    *   The data exchange structure for the @glyph-to-script-map property.
    *
@@ -1018,36 +1021,36 @@ FT_BEGIN_HEADER
    *   fallback-script
    *
    * @description:
-   *   *Experimental* *only*
-   *
-   *   If no auto-hinter script module can be assigned to a glyph, a
-   *   fallback script gets assigned to it (see also the
-   *   @glyph-to-script-map property).  By default, this is
-   *   @FT_AUTOHINTER_SCRIPT_CJK.  Using the `fallback-script' property,
-   *   this fallback value can be changed.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_UInt     fallback_script = FT_AUTOHINTER_SCRIPT_NONE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
+   *   **Experimental only**
    *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "fallback-script", &fallback_script );
-   *   }
+   *   If no auto-hinter script module can be assigned to a glyph, a fallback
+   *   script gets assigned to it (see also the @glyph-to-script-map
+   *   property).  By default, this is @FT_AUTOHINTER_SCRIPT_CJK.  Using the
+   *   `fallback-script` property, this fallback value can be changed.
    *
    * @note:
    *   This property can be used with @FT_Property_Get also.
    *
    *   It's important to use the right timing for changing this value: The
-   *   creation of the glyph-to-script map that eventually uses the
-   *   fallback script value gets triggered either by setting or reading a
+   *   creation of the glyph-to-script map that eventually uses the fallback
+   *   script value gets triggered either by setting or reading a
    *   face-specific property like @glyph-to-script-map, or by auto-hinting
    *   any glyph from that face.  In particular, if you have already created
    *   an @FT_Face structure but not loaded any glyph (using the
    *   auto-hinter), a change of the fallback script will affect this face.
    *
+   * @example:
+   *   ```
+   *     FT_Library  library;
+   *     FT_UInt     fallback_script = FT_AUTOHINTER_SCRIPT_NONE;
+   *
+   *
+   *     FT_Init_FreeType( &library );
+   *
+   *     FT_Property_Set( library, "autofitter",
+   *                               "fallback-script", &fallback_script );
+   *   ```
+   *
    * @since:
    *   2.4.11
    *
@@ -1060,42 +1063,43 @@ FT_BEGIN_HEADER
    *   default-script
    *
    * @description:
-   *   *Experimental* *only*
+   *   **Experimental only**
    *
-   *   If FreeType gets compiled with FT_CONFIG_OPTION_USE_HARFBUZZ to make
-   *   the HarfBuzz library access OpenType features for getting better
-   *   glyph coverages, this property sets the (auto-fitter) script to be
-   *   used for the default (OpenType) script data of a font's GSUB table.
-   *   Features for the default script are intended for all scripts not
-   *   explicitly handled in GSUB; an example is a `dlig' feature,
-   *   containing the combination of the characters `T', `E', and `L' to
-   *   form a `TEL' ligature.
+   *   If FreeType gets compiled with `FT_CONFIG_OPTION_USE_HARFBUZZ` to make
+   *   the HarfBuzz library access OpenType features for getting better glyph
+   *   coverages, this property sets the (auto-fitter) script to be used for
+   *   the default (OpenType) script data of a font's GSUB table.  Features
+   *   for the default script are intended for all scripts not explicitly
+   *   handled in GSUB; an example is a 'dlig' feature, containing the
+   *   combination of the characters 'T', 'E', and 'L' to form a 'TEL'
+   *   ligature.
    *
    *   By default, this is @FT_AUTOHINTER_SCRIPT_LATIN.  Using the
-   *   `default-script' property, this default value can be changed.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_UInt     default_script = FT_AUTOHINTER_SCRIPT_NONE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "default-script", &default_script );
-   *   }
+   *   `default-script` property, this default value can be changed.
    *
    * @note:
    *   This property can be used with @FT_Property_Get also.
    *
    *   It's important to use the right timing for changing this value: The
-   *   creation of the glyph-to-script map that eventually uses the
-   *   default script value gets triggered either by setting or reading a
+   *   creation of the glyph-to-script map that eventually uses the default
+   *   script value gets triggered either by setting or reading a
    *   face-specific property like @glyph-to-script-map, or by auto-hinting
    *   any glyph from that face.  In particular, if you have already created
    *   an @FT_Face structure but not loaded any glyph (using the
    *   auto-hinter), a change of the default script will affect this face.
    *
+   * @example:
+   *   ```
+   *     FT_Library  library;
+   *     FT_UInt     default_script = FT_AUTOHINTER_SCRIPT_NONE;
+   *
+   *
+   *     FT_Init_FreeType( &library );
+   *
+   *     FT_Property_Set( library, "autofitter",
+   *                               "default-script", &default_script );
+   *   ```
+   *
    * @since:
    *   2.5.3
    *
@@ -1108,13 +1112,20 @@ FT_BEGIN_HEADER
    *   increase-x-height
    *
    * @description:
-   *   For ppem values in the range 6~<= ppem <= `increase-x-height', round
-   *   up the font's x~height much more often than normally.  If the value
-   *   is set to~0, which is the default, this feature is switched off.  Use
+   *   For ppem values in the range 6~<= ppem <= `increase-x-height`, round
+   *   up the font's x~height much more often than normally.  If the value is
+   *   set to~0, which is the default, this feature is switched off.  Use
    *   this property to improve the legibility of small font sizes if
    *   necessary.
    *
-   *   {
+   * @note:
+   *   This property can be used with @FT_Property_Get also.
+   *
+   *   Set this value right after calling @FT_Set_Char_Size, but before
+   *   loading any glyph (using the auto-hinter).
+   *
+   * @example:
+   *   ```
    *     FT_Library               library;
    *     FT_Face                  face;
    *     FT_Prop_IncreaseXHeight  prop;
@@ -1129,13 +1140,7 @@ FT_BEGIN_HEADER
    *
    *     FT_Property_Set( library, "autofitter",
    *                               "increase-x-height", &prop );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   Set this value right after calling @FT_Set_Char_Size, but before
-   *   loading any glyph (using the auto-hinter).
+   *   ```
    *
    * @since:
    *   2.4.11
@@ -1166,46 +1171,48 @@ FT_BEGIN_HEADER
    *   warping
    *
    * @description:
-   *   *Experimental* *only*
+   *   **Experimental only**
    *
-   *   If FreeType gets compiled with option AF_CONFIG_OPTION_USE_WARPER to
+   *   If FreeType gets compiled with option `AF_CONFIG_OPTION_USE_WARPER` to
    *   activate the warp hinting code in the auto-hinter, this property
    *   switches warping on and off.
    *
-   *   Warping only works in `normal' auto-hinting mode replacing it.
-   *   The idea of the code is to slightly scale and shift a glyph along
-   *   the non-hinted dimension (which is usually the horizontal axis) so
-   *   that as much of its segments are aligned (more or less) to the grid.
-   *   To find out a glyph's optimal scaling and shifting value, various
-   *   parameter combinations are tried and scored.
+   *   Warping only works in 'normal' auto-hinting mode replacing it.  The
+   *   idea of the code is to slightly scale and shift a glyph along the
+   *   non-hinted dimension (which is usually the horizontal axis) so that as
+   *   much of its segments are aligned (more or less) to the grid.  To find
+   *   out a glyph's optimal scaling and shifting value, various parameter
+   *   combinations are tried and scored.
    *
-   *   By default, warping is off.  The example below shows how to switch on
-   *   warping (omitting the error handling).
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Bool     warping = 1;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "autofitter",
-   *                               "warping", &warping );
-   *   }
+   *   By default, warping is off.
    *
    * @note:
    *   This property can be used with @FT_Property_Get also.
    *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values 1 and 0 for `on' and `off', respectively).
+   *   This property can be set via the `FREETYPE_PROPERTIES` environment
+   *   variable (using values 1 and 0 for 'on' and 'off', respectively).
    *
    *   The warping code can also change advance widths.  Have a look at the
-   *   `lsb_delta' and `rsb_delta' fields in the @FT_GlyphSlotRec structure
+   *   `lsb_delta` and `rsb_delta` fields in the @FT_GlyphSlotRec structure
    *   for details on improving inter-glyph distances while rendering.
    *
    *   Since warping is a global property of the auto-hinter it is best to
    *   change its value before rendering any face.  Otherwise, you should
-   *   reload all faces that get auto-hinted in `normal' hinting mode.
+   *   reload all faces that get auto-hinted in 'normal' hinting mode.
+   *
+   * @example:
+   *   This example shows how to switch on warping (omitting the error
+   *   handling).
+   *
+   *   ```
+   *     FT_Library  library;
+   *     FT_Bool     warping = 1;
+   *
+   *
+   *     FT_Init_FreeType( &library );
+   *
+   *     FT_Property_Set( library, "autofitter", "warping", &warping );
+   *   ```
    *
    * @since:
    *   2.6
diff --git a/thirdparty/freetype/include/freetype/fterrdef.h b/thirdparty/freetype/include/freetype/fterrdef.h
index 8ffd346ca8..9bc7dc65e3 100644
--- a/thirdparty/freetype/include/freetype/fterrdef.h
+++ b/thirdparty/freetype/include/freetype/fterrdef.h
@@ -1,58 +1,57 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fterrdef.h                                                             */
-/*                                                                         */
-/*    FreeType error codes (specification).                                */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fterrdef.h
+ *
+ *   FreeType error codes (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*   error_code_values                                                   */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*   Error Code Values                                                   */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*   All possible error codes returned by FreeType functions.            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   The list below is taken verbatim from the file `fterrdef.h'         */
-  /*   (loaded automatically by including `FT_FREETYPE_H').  The first     */
-  /*   argument of the `FT_ERROR_DEF_' macro is the error label; by        */
-  /*   default, the prefix `FT_Err_' gets added so that you get error      */
-  /*   names like `FT_Err_Cannot_Open_Resource'.  The second argument is   */
-  /*   the error code, and the last argument an error string, which is not */
-  /*   used by FreeType.                                                   */
-  /*                                                                       */
-  /*   Within your application you should *only* use error names and       */
-  /*   *never* its numeric values!  The latter might (and actually do)     */
-  /*   change in forthcoming FreeType versions.                            */
-  /*                                                                       */
-  /*   Macro `FT_NOERRORDEF_' defines `FT_Err_Ok', which is always zero.   */
-  /*   See the `Error Enumerations' subsection how to automatically        */
-  /*   generate a list of error strings.                                   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *  error_code_values
+   *
+   * @title:
+   *  Error Code Values
+   *
+   * @abstract:
+   *  All possible error codes returned by FreeType functions.
+   *
+   * @description:
+   *  The list below is taken verbatim from the file `fterrdef.h` (loaded
+   *  automatically by including `FT_FREETYPE_H`).  The first argument of the
+   *  `FT_ERROR_DEF_` macro is the error label; by default, the prefix
+   *  `FT_Err_` gets added so that you get error names like
+   *  `FT_Err_Cannot_Open_Resource`.  The second argument is the error code,
+   *  and the last argument an error string, which is not used by FreeType.
+   *
+   *  Within your application you should **only** use error names and
+   *  **never** its numeric values!  The latter might (and actually do)
+   *  change in forthcoming FreeType versions.
+   *
+   *  Macro `FT_NOERRORDEF_` defines `FT_Err_Ok`, which is always zero.  See
+   *  the 'Error Enumerations' subsection how to automatically generate a
+   *  list of error strings.
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Err_XXX                                                         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Err_XXX
+   *
+   */
 
   /* generic errors */
 
diff --git a/thirdparty/freetype/include/freetype/fterrors.h b/thirdparty/freetype/include/freetype/fterrors.h
index f6ee5c24e2..58f5a3ead1 100644
--- a/thirdparty/freetype/include/freetype/fterrors.h
+++ b/thirdparty/freetype/include/freetype/fterrors.h
@@ -1,110 +1,120 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fterrors.h                                                             */
-/*                                                                         */
-/*    FreeType error code handling (specification).                        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*   error_enumerations                                                  */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*   Error Enumerations                                                  */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*   How to handle errors and error strings.                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   The header file `fterrors.h' (which is automatically included by    */
-  /*   `freetype.h' defines the handling of FreeType's enumeration         */
-  /*   constants.  It can also be used to generate error message strings   */
-  /*   with a small macro trick explained below.                           */
-  /*                                                                       */
-  /*   *Error* *Formats*                                                   */
-  /*                                                                       */
-  /*   The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be   */
-  /*   defined in `ftoption.h' in order to make the higher byte indicate   */
-  /*   the module where the error has happened (this is not compatible     */
-  /*   with standard builds of FreeType~2, however).  See the file         */
-  /*   `ftmoderr.h' for more details.                                      */
-  /*                                                                       */
-  /*   *Error* *Message* *Strings*                                         */
-  /*                                                                       */
-  /*   Error definitions are set up with special macros that allow client  */
-  /*   applications to build a table of error message strings.  The        */
-  /*   strings are not included in a normal build of FreeType~2 to save    */
-  /*   space (most client applications do not use them).                   */
-  /*                                                                       */
-  /*   To do so, you have to define the following macros before including  */
-  /*   this file.                                                          */
-  /*                                                                       */
-  /*   {                                                                   */
-  /*     FT_ERROR_START_LIST                                               */
-  /*   }                                                                   */
-  /*                                                                       */
-  /*   This macro is called before anything else to define the start of    */
-  /*   the error list.  It is followed by several FT_ERROR_DEF calls.      */
-  /*                                                                       */
-  /*   {                                                                   */
-  /*     FT_ERROR_DEF( e, v, s )                                           */
-  /*   }                                                                   */
-  /*                                                                       */
-  /*   This macro is called to define one single error.  `e' is the error  */
-  /*   code identifier (e.g., `Invalid_Argument'), `v' is the error's      */
-  /*   numerical value, and `s' is the corresponding error string.         */
-  /*                                                                       */
-  /*   {                                                                   */
-  /*     FT_ERROR_END_LIST                                                 */
-  /*   }                                                                   */
-  /*                                                                       */
-  /*   This macro ends the list.                                           */
-  /*                                                                       */
-  /*   Additionally, you have to undefine `FTERRORS_H_' before #including  */
-  /*   this file.                                                          */
-  /*                                                                       */
-  /*   Here is a simple example.                                           */
-  /*                                                                       */
-  /*   {                                                                   */
-  /*     #undef FTERRORS_H_                                                */
-  /*     #define FT_ERRORDEF( e, v, s )  { e, s },                         */
-  /*     #define FT_ERROR_START_LIST     {                                 */
-  /*     #define FT_ERROR_END_LIST       { 0, NULL } };                    */
-  /*                                                                       */
-  /*     const struct                                                      */
-  /*     {                                                                 */
-  /*       int          err_code;                                          */
-  /*       const char*  err_msg;                                           */
-  /*     } ft_errors[] =                                                   */
-  /*                                                                       */
-  /*     #include FT_ERRORS_H                                              */
-  /*   }                                                                   */
-  /*                                                                       */
-  /*   Note that `FT_Err_Ok' is _not_ defined with `FT_ERRORDEF' but with  */
-  /*   `FT_NOERRORDEF'; it is always zero.                                 */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * fterrors.h
+ *
+ *   FreeType error code handling (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * @section:
+   *   error_enumerations
+   *
+   * @title:
+   *   Error Enumerations
+   *
+   * @abstract:
+   *   How to handle errors and error strings.
+   *
+   * @description:
+   *   The header file `fterrors.h` (which is automatically included by
+   *   `freetype.h` defines the handling of FreeType's enumeration
+   *   constants.  It can also be used to generate error message strings
+   *   with a small macro trick explained below.
+   *
+   *   **Error Formats**
+   *
+   *   The configuration macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` can be
+   *   defined in `ftoption.h` in order to make the higher byte indicate the
+   *   module where the error has happened (this is not compatible with
+   *   standard builds of FreeType~2, however).  See the file `ftmoderr.h`
+   *   for more details.
+   *
+   *   **Error Message Strings**
+   *
+   *   Error definitions are set up with special macros that allow client
+   *   applications to build a table of error message strings.  The strings
+   *   are not included in a normal build of FreeType~2 to save space (most
+   *   client applications do not use them).
+   *
+   *   To do so, you have to define the following macros before including
+   *   this file.
+   *
+   *   ```
+   *     FT_ERROR_START_LIST
+   *   ```
+   *
+   *   This macro is called before anything else to define the start of the
+   *   error list.  It is followed by several `FT_ERROR_DEF` calls.
+   *
+   *   ```
+   *     FT_ERROR_DEF( e, v, s )
+   *   ```
+   *
+   *   This macro is called to define one single error.  'e' is the error
+   *   code identifier (e.g., `Invalid_Argument`), 'v' is the error's
+   *   numerical value, and 's' is the corresponding error string.
+   *
+   *   ```
+   *     FT_ERROR_END_LIST
+   *   ```
+   *
+   *   This macro ends the list.
+   *
+   *   Additionally, you have to undefine `FTERRORS_H_` before #including
+   *   this file.
+   *
+   *   Here is a simple example.
+   *
+   *   ```
+   *     #undef FTERRORS_H_
+   *     #define FT_ERRORDEF( e, v, s )  { e, s },
+   *     #define FT_ERROR_START_LIST     {
+   *     #define FT_ERROR_END_LIST       { 0, NULL } };
+   *
+   *     const struct
+   *     {
+   *       int          err_code;
+   *       const char*  err_msg;
+   *     } ft_errors[] =
+   *
+   *     #include FT_ERRORS_H
+   *   ```
+   *
+   *   An alternative to using an array is a switch statement.
+   *
+   *   ```
+   *     #undef FTERRORS_H_
+   *     #define FT_ERROR_START_LIST     switch ( error_code ) {
+   *     #define FT_ERRORDEF( e, v, s )    case v: return s;
+   *     #define FT_ERROR_END_LIST       }
+   *   ```
+   *
+   *   If you use `FT_CONFIG_OPTION_USE_MODULE_ERRORS`, `error_code` should
+   *   be replaced with `FT_ERROR_BASE(error_code)` in the last example.
+   */
 
   /* */
 
-  /* In previous FreeType versions we used `__FTERRORS_H__'.  However, */
+  /* In previous FreeType versions we used `__FTERRORS_H__`.  However, */
   /* using two successive underscores in a non-system symbol name      */
   /* violates the C (and C++) standard, so it was changed to the       */
   /* current form.  In spite of this, we have to make                  */
   /*                                                                   */
+  /* ```                                                               */
   /*   #undefine __FTERRORS_H__                                        */
+  /* ```                                                               */
   /*                                                                   */
   /* work for backward compatibility.                                  */
   /*                                                                   */
@@ -130,7 +140,7 @@
 
 
   /* FT_ERR_PREFIX is used as a prefix for error identifiers. */
-  /* By default, we use `FT_Err_'.                            */
+  /* By default, we use `FT_Err_`.                            */
   /*                                                          */
 #ifndef FT_ERR_PREFIX
 #define FT_ERR_PREFIX  FT_Err_
@@ -158,6 +168,8 @@
   /*                                                           */
 #ifndef FT_ERRORDEF
 
+#define FT_INCLUDE_ERR_PROTOS
+
 #define FT_ERRORDEF( e, v, s )  e = v,
 #define FT_ERROR_START_LIST     enum {
 #define FT_ERROR_END_LIST       FT_ERR_CAT( FT_ERR_PREFIX, Max ) };
@@ -220,6 +232,53 @@
 #undef FT_ERR_PREFIX
 #endif
 
+  /* FT_INCLUDE_ERR_PROTOS:  Control if function prototypes should be       */
+  /*                         included with `#include FT_ERRORS_H'.  This is */
+  /*                         only true where `FT_ERRORDEF` is undefined.    */
+  /* FT_ERR_PROTOS_DEFINED:  Actual multiple-inclusion protection of        */
+  /*                         `fterrors.h`.                                  */
+#ifdef FT_INCLUDE_ERR_PROTOS
+#undef FT_INCLUDE_ERR_PROTOS
+
+#ifndef FT_ERR_PROTOS_DEFINED
+#define FT_ERR_PROTOS_DEFINED
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Error_String
+   *
+   * @description:
+   *   Retrieve the description of a valid FreeType error code.
+   *
+   * @input:
+   *   error_code ::
+   *     A valid FreeType error code.
+   *
+   * @return:
+   *   A C~string or `NULL`, if any error occurred.
+   *
+   * @note:
+   *   FreeType has to be compiled with `FT_CONFIG_OPTION_ERROR_STRINGS` or
+   *   `FT_DEBUG_LEVEL_ERROR` to get meaningful descriptions.
+   *   'error_string' will be `NULL` otherwise.
+   *
+   *   Module identification will be ignored:
+   *
+   *   ```c
+   *     strcmp( FT_Error_String(  FT_Err_Unknown_File_Format ),
+   *             FT_Error_String( BDF_Err_Unknown_File_Format ) ) == 0;
+   *   ```
+   */
+  FT_EXPORT( const char* )
+  FT_Error_String( FT_Error  error_code );
+
+
+#endif /* FT_ERR_PROTOS_DEFINED */
+
+#endif /* FT_INCLUDE_ERR_PROTOS */
+
 #endif /* !(FTERRORS_H_ && __FTERRORS_H__) */
 
 
diff --git a/thirdparty/freetype/include/freetype/ftfntfmt.h b/thirdparty/freetype/include/freetype/ftfntfmt.h
index cc86efac23..aae0b13264 100644
--- a/thirdparty/freetype/include/freetype/ftfntfmt.h
+++ b/thirdparty/freetype/include/freetype/ftfntfmt.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftfntfmt.h                                                             */
-/*                                                                         */
-/*    Support functions for font formats.                                  */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftfntfmt.h
+ *
+ *   Support functions for font formats.
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTFNTFMT_H_
@@ -32,49 +32,48 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*   font_formats                                                        */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*   Font Formats                                                        */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*   Getting the font format.                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   The single function in this section can be used to get the font     */
-  /*   format.  Note that this information is not needed normally;         */
-  /*   however, there are special cases (like in PDF devices) where it is  */
-  /*   important to differentiate, in spite of FreeType's uniform API.     */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*   FT_Get_Font_Format                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   Return a string describing the format of a given face.  Possible    */
-  /*   values are `TrueType', `Type~1', `BDF', `PCF', `Type~42',           */
-  /*   `CID~Type~1', `CFF', `PFR', and `Windows~FNT'.                      */
-  /*                                                                       */
-  /*   The return value is suitable to be used as an X11 FONT_PROPERTY.    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*   face ::                                                             */
-  /*     Input face handle.                                                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*   Font format string.  NULL in case of error.                         */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*   A deprecated name for the same function is                          */
-  /*   `FT_Get_X11_Font_Format'.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *  font_formats
+   *
+   * @title:
+   *  Font Formats
+   *
+   * @abstract:
+   *  Getting the font format.
+   *
+   * @description:
+   *  The single function in this section can be used to get the font format.
+   *  Note that this information is not needed normally; however, there are
+   *  special cases (like in PDF devices) where it is important to
+   *  differentiate, in spite of FreeType's uniform API.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *  FT_Get_Font_Format
+   *
+   * @description:
+   *  Return a string describing the format of a given face.  Possible values
+   *  are 'TrueType', 'Type~1', 'BDF', 'PCF', 'Type~42', 'CID~Type~1', 'CFF',
+   *  'PFR', and 'Windows~FNT'.
+   *
+   *  The return value is suitable to be used as an X11 FONT_PROPERTY.
+   *
+   * @input:
+   *  face ::
+   *    Input face handle.
+   *
+   * @return:
+   *  Font format string.  `NULL` in case of error.
+   *
+   * @note:
+   *  A deprecated name for the same function is `FT_Get_X11_Font_Format`.
+   */
   FT_EXPORT( const char* )
   FT_Get_Font_Format( FT_Face  face );
 
diff --git a/thirdparty/freetype/include/freetype/ftgasp.h b/thirdparty/freetype/include/freetype/ftgasp.h
index fc1248ff48..24673d8ce1 100644
--- a/thirdparty/freetype/include/freetype/ftgasp.h
+++ b/thirdparty/freetype/include/freetype/ftgasp.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgasp.h                                                               */
-/*                                                                         */
-/*    Access of TrueType's `gasp' table (specification).                   */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgasp.h
+ *
+ *   Access of TrueType's 'gasp' table (specification).
+ *
+ * Copyright (C) 2007-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTGASP_H_
@@ -32,7 +32,7 @@
 FT_BEGIN_HEADER
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @section:
    *   gasp_table
@@ -41,16 +41,16 @@ FT_BEGIN_HEADER
    *   Gasp Table
    *
    * @abstract:
-   *   Retrieving TrueType `gasp' table entries.
+   *   Retrieving TrueType 'gasp' table entries.
    *
    * @description:
    *   The function @FT_Get_Gasp can be used to query a TrueType or OpenType
-   *   font for specific entries in its `gasp' table, if any.  This is
-   *   mainly useful when implementing native TrueType hinting with the
-   *   bytecode interpreter to duplicate the Windows text rendering results.
+   *   font for specific entries in its 'gasp' table, if any.  This is mainly
+   *   useful when implementing native TrueType hinting with the bytecode
+   *   interpreter to duplicate the Windows text rendering results.
    */
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_GASP_XXX
@@ -66,7 +66,7 @@ FT_BEGIN_HEADER
    *
    *   FT_GASP_DO_GRIDFIT ::
    *     Grid-fitting and hinting should be performed at the specified ppem.
-   *     This *really* means TrueType bytecode interpretation.  If this bit
+   *     This **really** means TrueType bytecode interpretation.  If this bit
    *     is not set, no hinting gets applied.
    *
    *   FT_GASP_DO_GRAY ::
@@ -80,13 +80,13 @@ FT_BEGIN_HEADER
    *     Grid-fitting must be used with ClearType's symmetric smoothing.
    *
    * @note:
-   *   The bit-flags `FT_GASP_DO_GRIDFIT' and `FT_GASP_DO_GRAY' are to be
+   *   The bit-flags `FT_GASP_DO_GRIDFIT` and `FT_GASP_DO_GRAY` are to be
    *   used for standard font rasterization only.  Independently of that,
-   *   `FT_GASP_SYMMETRIC_SMOOTHING' and `FT_GASP_SYMMETRIC_GRIDFIT' are to
-   *   be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT' and
-   *   `FT_GASP_DO_GRAY' are consequently ignored).
+   *   `FT_GASP_SYMMETRIC_SMOOTHING` and `FT_GASP_SYMMETRIC_GRIDFIT` are to
+   *   be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT` and
+   *   `FT_GASP_DO_GRAY` are consequently ignored).
    *
-   *   `ClearType' is Microsoft's implementation of LCD rendering, partly
+   *   'ClearType' is Microsoft's implementation of LCD rendering, partly
    *   protected by patents.
    *
    * @since:
@@ -99,29 +99,31 @@ FT_BEGIN_HEADER
 #define FT_GASP_SYMMETRIC_SMOOTHING  0x08
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
-   * @func:
+   * @function:
    *   FT_Get_Gasp
    *
    * @description:
    *   For a TrueType or OpenType font file, return the rasterizer behaviour
-   *   flags from the font's `gasp' table corresponding to a given
-   *   character pixel size.
+   *   flags from the font's 'gasp' table corresponding to a given character
+   *   pixel size.
    *
    * @input:
-   *   face :: The source face handle.
+   *   face ::
+   *     The source face handle.
    *
-   *   ppem :: The vertical character pixel size.
+   *   ppem ::
+   *     The vertical character pixel size.
    *
    * @return:
    *   Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no
-   *   `gasp' table in the face.
+   *   'gasp' table in the face.
    *
    * @note:
    *   If you want to use the MM functionality of OpenType variation fonts
    *   (i.e., using @FT_Set_Var_Design_Coordinates and friends), call this
-   *   function *after* setting an instance since the return values can
+   *   function **after** setting an instance since the return values can
    *   change.
    *
    * @since:
diff --git a/thirdparty/freetype/include/freetype/ftglyph.h b/thirdparty/freetype/include/freetype/ftglyph.h
index 5f3fc009cd..4067c2e62f 100644
--- a/thirdparty/freetype/include/freetype/ftglyph.h
+++ b/thirdparty/freetype/include/freetype/ftglyph.h
@@ -1,32 +1,32 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftglyph.h                                                              */
-/*                                                                         */
-/*    FreeType convenience functions to handle glyphs (specification).     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file contains the definition of several convenience functions    */
-  /* that can be used by client applications to easily retrieve glyph      */
-  /* bitmaps and outlines from a given face.                               */
-  /*                                                                       */
-  /* These functions should be optional if you are writing a font server   */
-  /* or text layout engine on top of FreeType.  However, they are pretty   */
-  /* handy for many other simple uses of the library.                      */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftglyph.h
+ *
+ *   FreeType convenience functions to handle glyphs (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file contains the definition of several convenience functions that
+   * can be used by client applications to easily retrieve glyph bitmaps and
+   * outlines from a given face.
+   *
+   * These functions should be optional if you are writing a font server or
+   * text layout engine on top of FreeType.  However, they are pretty handy
+   * for many other simple uses of the library.
+   *
+   */
 
 
 #ifndef FTGLYPH_H_
@@ -46,65 +46,70 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    glyph_management                                                   */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Glyph Management                                                   */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Generic interface to manage individual glyph data.                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains definitions used to manage glyph data        */
-  /*    through generic FT_Glyph objects.  Each of them can contain a      */
-  /*    bitmap, a vector outline, or even images in other formats.         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   glyph_management
+   *
+   * @title:
+   *   Glyph Management
+   *
+   * @abstract:
+   *   Generic interface to manage individual glyph data.
+   *
+   * @description:
+   *   This section contains definitions used to manage glyph data through
+   *   generic @FT_Glyph objects.  Each of them can contain a bitmap,
+   *   a vector outline, or even images in other formats.  These objects are
+   *   detached from @FT_Face, contrary to @FT_GlyphSlot.
+   *
+   */
 
 
   /* forward declaration to a private type */
   typedef struct FT_Glyph_Class_  FT_Glyph_Class;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Glyph                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Handle to an object used to model generic glyph images.  It is a   */
-  /*    pointer to the @FT_GlyphRec structure and can contain a glyph      */
-  /*    bitmap or pointer.                                                 */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Glyph objects are not owned by the library.  You must thus release */
-  /*    them manually (through @FT_Done_Glyph) _before_ calling            */
-  /*    @FT_Done_FreeType.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Glyph
+   *
+   * @description:
+   *   Handle to an object used to model generic glyph images.  It is a
+   *   pointer to the @FT_GlyphRec structure and can contain a glyph bitmap
+   *   or pointer.
+   *
+   * @note:
+   *   Glyph objects are not owned by the library.  You must thus release
+   *   them manually (through @FT_Done_Glyph) _before_ calling
+   *   @FT_Done_FreeType.
+   */
   typedef struct FT_GlyphRec_*  FT_Glyph;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_GlyphRec                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The root glyph structure contains a given glyph image plus its     */
-  /*    advance width in 16.16 fixed-point format.                         */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    library :: A handle to the FreeType library object.                */
-  /*                                                                       */
-  /*    clazz   :: A pointer to the glyph's class.  Private.               */
-  /*                                                                       */
-  /*    format  :: The format of the glyph's image.                        */
-  /*                                                                       */
-  /*    advance :: A 16.16 vector that gives the glyph's advance width.    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_GlyphRec
+   *
+   * @description:
+   *   The root glyph structure contains a given glyph image plus its advance
+   *   width in 16.16 fixed-point format.
+   *
+   * @fields:
+   *   library ::
+   *     A handle to the FreeType library object.
+   *
+   *   clazz ::
+   *     A pointer to the glyph's class.  Private.
+   *
+   *   format ::
+   *     The format of the glyph's image.
+   *
+   *   advance ::
+   *     A 16.16 vector that gives the glyph's advance width.
+   */
   typedef struct  FT_GlyphRec_
   {
     FT_Library             library;
@@ -115,48 +120,51 @@ FT_BEGIN_HEADER
   } FT_GlyphRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_BitmapGlyph                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an object used to model a bitmap glyph image.  This is */
-  /*    a sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_BitmapGlyph
+   *
+   * @description:
+   *   A handle to an object used to model a bitmap glyph image.  This is a
+   *   sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec.
+   */
   typedef struct FT_BitmapGlyphRec_*  FT_BitmapGlyph;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_BitmapGlyphRec                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used for bitmap glyph images.  This really is a        */
-  /*    `sub-class' of @FT_GlyphRec.                                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root   :: The root @FT_Glyph fields.                               */
-  /*                                                                       */
-  /*    left   :: The left-side bearing, i.e., the horizontal distance     */
-  /*              from the current pen position to the left border of the  */
-  /*              glyph bitmap.                                            */
-  /*                                                                       */
-  /*    top    :: The top-side bearing, i.e., the vertical distance from   */
-  /*              the current pen position to the top border of the glyph  */
-  /*              bitmap.  This distance is positive for upwards~y!        */
-  /*                                                                       */
-  /*    bitmap :: A descriptor for the bitmap.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have       */
-  /*    `glyph->format == FT_GLYPH_FORMAT_BITMAP'.  This lets you access   */
-  /*    the bitmap's contents easily.                                      */
-  /*                                                                       */
-  /*    The corresponding pixel buffer is always owned by @FT_BitmapGlyph  */
-  /*    and is thus created and destroyed with it.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_BitmapGlyphRec
+   *
+   * @description:
+   *   A structure used for bitmap glyph images.  This really is a
+   *   'sub-class' of @FT_GlyphRec.
+   *
+   * @fields:
+   *   root ::
+   *     The root @FT_Glyph fields.
+   *
+   *   left ::
+   *     The left-side bearing, i.e., the horizontal distance from the
+   *     current pen position to the left border of the glyph bitmap.
+   *
+   *   top ::
+   *     The top-side bearing, i.e., the vertical distance from the current
+   *     pen position to the top border of the glyph bitmap.  This distance
+   *     is positive for upwards~y!
+   *
+   *   bitmap ::
+   *     A descriptor for the bitmap.
+   *
+   * @note:
+   *   You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have
+   *   `glyph->format == FT_GLYPH_FORMAT_BITMAP`.  This lets you access the
+   *   bitmap's contents easily.
+   *
+   *   The corresponding pixel buffer is always owned by @FT_BitmapGlyph and
+   *   is thus created and destroyed with it.
+   */
   typedef struct  FT_BitmapGlyphRec_
   {
     FT_GlyphRec  root;
@@ -167,44 +175,46 @@ FT_BEGIN_HEADER
   } FT_BitmapGlyphRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_OutlineGlyph                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an object used to model an outline glyph image.  This  */
-  /*    is a sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_OutlineGlyph
+   *
+   * @description:
+   *   A handle to an object used to model an outline glyph image.  This is a
+   *   sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec.
+   */
   typedef struct FT_OutlineGlyphRec_*  FT_OutlineGlyph;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_OutlineGlyphRec                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used for outline (vectorial) glyph images.  This       */
-  /*    really is a `sub-class' of @FT_GlyphRec.                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root    :: The root @FT_Glyph fields.                              */
-  /*                                                                       */
-  /*    outline :: A descriptor for the outline.                           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have      */
-  /*    `glyph->format == FT_GLYPH_FORMAT_OUTLINE'.  This lets you access  */
-  /*    the outline's content easily.                                      */
-  /*                                                                       */
-  /*    As the outline is extracted from a glyph slot, its coordinates are */
-  /*    expressed normally in 26.6 pixels, unless the flag                 */
-  /*    @FT_LOAD_NO_SCALE was used in @FT_Load_Glyph() or @FT_Load_Char(). */
-  /*                                                                       */
-  /*    The outline's tables are always owned by the object and are        */
-  /*    destroyed with it.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_OutlineGlyphRec
+   *
+   * @description:
+   *   A structure used for outline (vectorial) glyph images.  This really is
+   *   a 'sub-class' of @FT_GlyphRec.
+   *
+   * @fields:
+   *   root ::
+   *     The root @FT_Glyph fields.
+   *
+   *   outline ::
+   *     A descriptor for the outline.
+   *
+   * @note:
+   *   You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have
+   *   `glyph->format == FT_GLYPH_FORMAT_OUTLINE`.  This lets you access the
+   *   outline's content easily.
+   *
+   *   As the outline is extracted from a glyph slot, its coordinates are
+   *   expressed normally in 26.6 pixels, unless the flag @FT_LOAD_NO_SCALE
+   *   was used in @FT_Load_Glyph() or @FT_Load_Char().
+   *
+   *   The outline's tables are always owned by the object and are destroyed
+   *   with it.
+   */
   typedef struct  FT_OutlineGlyphRec_
   {
     FT_GlyphRec  root;
@@ -213,113 +223,150 @@ FT_BEGIN_HEADER
   } FT_OutlineGlyphRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Glyph                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to extract a glyph image from a slot.  Note that   */
-  /*    the created @FT_Glyph object must be released with @FT_Done_Glyph. */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    slot   :: A handle to the source glyph slot.                       */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aglyph :: A handle to the glyph object.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Because `*aglyph->advance.x' and '*aglyph->advance.y' are 16.16    */
-  /*    fixed-point numbers, `slot->advance.x' and `slot->advance.y'       */
-  /*    (which are in 26.6 fixed-point format) must be in the range        */
-  /*    ]-32768;32768[.                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Glyph
+   *
+   * @description:
+   *   A function used to create a new empty glyph image.  Note that the
+   *   created @FT_Glyph object must be released with @FT_Done_Glyph.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the FreeType library object.
+   *
+   *   format ::
+   *     The format of the glyph's image.
+   *
+   * @output:
+   *   aglyph ::
+   *     A handle to the glyph object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_New_Glyph( FT_Library       library,
+                FT_Glyph_Format  format,
+                FT_Glyph         *aglyph );
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Glyph
+   *
+   * @description:
+   *   A function used to extract a glyph image from a slot.  Note that the
+   *   created @FT_Glyph object must be released with @FT_Done_Glyph.
+   *
+   * @input:
+   *   slot ::
+   *     A handle to the source glyph slot.
+   *
+   * @output:
+   *   aglyph ::
+   *     A handle to the glyph object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Because `*aglyph->advance.x` and `*aglyph->advance.y` are 16.16
+   *   fixed-point numbers, `slot->advance.x` and `slot->advance.y` (which
+   *   are in 26.6 fixed-point format) must be in the range ]-32768;32768[.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Glyph( FT_GlyphSlot  slot,
                 FT_Glyph     *aglyph );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Glyph_Copy                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to copy a glyph image.  Note that the created      */
-  /*    @FT_Glyph object must be released with @FT_Done_Glyph.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    source :: A handle to the source glyph object.                     */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    target :: A handle to the target glyph object.  0~in case of       */
-  /*              error.                                                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Glyph_Copy
+   *
+   * @description:
+   *   A function used to copy a glyph image.  Note that the created
+   *   @FT_Glyph object must be released with @FT_Done_Glyph.
+   *
+   * @input:
+   *   source ::
+   *     A handle to the source glyph object.
+   *
+   * @output:
+   *   target ::
+   *     A handle to the target glyph object.  0~in case of error.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Glyph_Copy( FT_Glyph   source,
                  FT_Glyph  *target );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Glyph_Transform                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Transform a glyph image if its format is scalable.                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    glyph  :: A handle to the target glyph object.                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    matrix :: A pointer to a 2x2 matrix to apply.                      */
-  /*                                                                       */
-  /*    delta  :: A pointer to a 2d vector to apply.  Coordinates are      */
-  /*              expressed in 1/64th of a pixel.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code (if not 0, the glyph format is not scalable).  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The 2x2 transformation matrix is also applied to the glyph's       */
-  /*    advance vector.                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Glyph_Transform
+   *
+   * @description:
+   *   Transform a glyph image if its format is scalable.
+   *
+   * @inout:
+   *   glyph ::
+   *     A handle to the target glyph object.
+   *
+   * @input:
+   *   matrix ::
+   *     A pointer to a 2x2 matrix to apply.
+   *
+   *   delta ::
+   *     A pointer to a 2d vector to apply.  Coordinates are expressed in
+   *     1/64th of a pixel.
+   *
+   * @return:
+   *   FreeType error code (if not 0, the glyph format is not scalable).
+   *
+   * @note:
+   *   The 2x2 transformation matrix is also applied to the glyph's advance
+   *   vector.
+   */
   FT_EXPORT( FT_Error )
   FT_Glyph_Transform( FT_Glyph    glyph,
                       FT_Matrix*  matrix,
                       FT_Vector*  delta );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Glyph_BBox_Mode                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The mode how the values of @FT_Glyph_Get_CBox are returned.        */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_GLYPH_BBOX_UNSCALED ::                                          */
-  /*      Return unscaled font units.                                      */
-  /*                                                                       */
-  /*    FT_GLYPH_BBOX_SUBPIXELS ::                                         */
-  /*      Return unfitted 26.6 coordinates.                                */
-  /*                                                                       */
-  /*    FT_GLYPH_BBOX_GRIDFIT ::                                           */
-  /*      Return grid-fitted 26.6 coordinates.                             */
-  /*                                                                       */
-  /*    FT_GLYPH_BBOX_TRUNCATE ::                                          */
-  /*      Return coordinates in integer pixels.                            */
-  /*                                                                       */
-  /*    FT_GLYPH_BBOX_PIXELS ::                                            */
-  /*      Return grid-fitted pixel coordinates.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Glyph_BBox_Mode
+   *
+   * @description:
+   *   The mode how the values of @FT_Glyph_Get_CBox are returned.
+   *
+   * @values:
+   *   FT_GLYPH_BBOX_UNSCALED ::
+   *     Return unscaled font units.
+   *
+   *   FT_GLYPH_BBOX_SUBPIXELS ::
+   *     Return unfitted 26.6 coordinates.
+   *
+   *   FT_GLYPH_BBOX_GRIDFIT ::
+   *     Return grid-fitted 26.6 coordinates.
+   *
+   *   FT_GLYPH_BBOX_TRUNCATE ::
+   *     Return coordinates in integer pixels.
+   *
+   *   FT_GLYPH_BBOX_PIXELS ::
+   *     Return grid-fitted pixel coordinates.
+   */
   typedef enum  FT_Glyph_BBox_Mode_
   {
     FT_GLYPH_BBOX_UNSCALED  = 0,
@@ -332,7 +379,7 @@ FT_BEGIN_HEADER
 
 
   /* these constants are deprecated; use the corresponding */
-  /* `FT_Glyph_BBox_Mode' values instead                   */
+  /* `FT_Glyph_BBox_Mode` values instead                   */
 #define ft_glyph_bbox_unscaled   FT_GLYPH_BBOX_UNSCALED
 #define ft_glyph_bbox_subpixels  FT_GLYPH_BBOX_SUBPIXELS
 #define ft_glyph_bbox_gridfit    FT_GLYPH_BBOX_GRIDFIT
@@ -340,187 +387,188 @@ FT_BEGIN_HEADER
 #define ft_glyph_bbox_pixels     FT_GLYPH_BBOX_PIXELS
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Glyph_Get_CBox                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return a glyph's `control box'.  The control box encloses all the  */
-  /*    outline's points, including Bezier control points.  Though it      */
-  /*    coincides with the exact bounding box for most glyphs, it can be   */
-  /*    slightly larger in some situations (like when rotating an outline  */
-  /*    that contains Bezier outside arcs).                                */
-  /*                                                                       */
-  /*    Computing the control box is very fast, while getting the bounding */
-  /*    box can take much more time as it needs to walk over all segments  */
-  /*    and arcs in the outline.  To get the latter, you can use the       */
-  /*    `ftbbox' component, which is dedicated to this single task.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    glyph :: A handle to the source glyph object.                      */
-  /*                                                                       */
-  /*    mode  :: The mode that indicates how to interpret the returned     */
-  /*             bounding box values.                                      */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    acbox :: The glyph coordinate bounding box.  Coordinates are       */
-  /*             expressed in 1/64th of pixels if it is grid-fitted.       */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Coordinates are relative to the glyph origin, using the y~upwards  */
-  /*    convention.                                                        */
-  /*                                                                       */
-  /*    If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode'   */
-  /*    must be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font        */
-  /*    units in 26.6 pixel format.  The value @FT_GLYPH_BBOX_SUBPIXELS    */
-  /*    is another name for this constant.                                 */
-  /*                                                                       */
-  /*    If the font is tricky and the glyph has been loaded with           */
-  /*    @FT_LOAD_NO_SCALE, the resulting CBox is meaningless.  To get      */
-  /*    reasonable values for the CBox it is necessary to load the glyph   */
-  /*    at a large ppem value (so that the hinting instructions can        */
-  /*    properly shift and scale the subglyphs), then extracting the CBox, */
-  /*    which can be eventually converted back to font units.              */
-  /*                                                                       */
-  /*    Note that the maximum coordinates are exclusive, which means that  */
-  /*    one can compute the width and height of the glyph image (be it in  */
-  /*    integer or 26.6 pixels) as:                                        */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      width  = bbox.xMax - bbox.xMin;                                  */
-  /*      height = bbox.yMax - bbox.yMin;                                  */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Note also that for 26.6 coordinates, if `bbox_mode' is set to      */
-  /*    @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted,  */
-  /*    which corresponds to:                                              */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      bbox.xMin = FLOOR(bbox.xMin);                                    */
-  /*      bbox.yMin = FLOOR(bbox.yMin);                                    */
-  /*      bbox.xMax = CEILING(bbox.xMax);                                  */
-  /*      bbox.yMax = CEILING(bbox.yMax);                                  */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    To get the bbox in pixel coordinates, set `bbox_mode' to           */
-  /*    @FT_GLYPH_BBOX_TRUNCATE.                                           */
-  /*                                                                       */
-  /*    To get the bbox in grid-fitted pixel coordinates, set `bbox_mode'  */
-  /*    to @FT_GLYPH_BBOX_PIXELS.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Glyph_Get_CBox
+   *
+   * @description:
+   *   Return a glyph's 'control box'.  The control box encloses all the
+   *   outline's points, including Bezier control points.  Though it
+   *   coincides with the exact bounding box for most glyphs, it can be
+   *   slightly larger in some situations (like when rotating an outline that
+   *   contains Bezier outside arcs).
+   *
+   *   Computing the control box is very fast, while getting the bounding box
+   *   can take much more time as it needs to walk over all segments and arcs
+   *   in the outline.  To get the latter, you can use the 'ftbbox'
+   *   component, which is dedicated to this single task.
+   *
+   * @input:
+   *   glyph ::
+   *     A handle to the source glyph object.
+   *
+   *   mode ::
+   *     The mode that indicates how to interpret the returned bounding box
+   *     values.
+   *
+   * @output:
+   *   acbox ::
+   *     The glyph coordinate bounding box.  Coordinates are expressed in
+   *     1/64th of pixels if it is grid-fitted.
+   *
+   * @note:
+   *   Coordinates are relative to the glyph origin, using the y~upwards
+   *   convention.
+   *
+   *   If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode` must
+   *   be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font units in 26.6
+   *   pixel format.  The value @FT_GLYPH_BBOX_SUBPIXELS is another name for
+   *   this constant.
+   *
+   *   If the font is tricky and the glyph has been loaded with
+   *   @FT_LOAD_NO_SCALE, the resulting CBox is meaningless.  To get
+   *   reasonable values for the CBox it is necessary to load the glyph at a
+   *   large ppem value (so that the hinting instructions can properly shift
+   *   and scale the subglyphs), then extracting the CBox, which can be
+   *   eventually converted back to font units.
+   *
+   *   Note that the maximum coordinates are exclusive, which means that one
+   *   can compute the width and height of the glyph image (be it in integer
+   *   or 26.6 pixels) as:
+   *
+   *   ```
+   *     width  = bbox.xMax - bbox.xMin;
+   *     height = bbox.yMax - bbox.yMin;
+   *   ```
+   *
+   *   Note also that for 26.6 coordinates, if `bbox_mode` is set to
+   *   @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted,
+   *   which corresponds to:
+   *
+   *   ```
+   *     bbox.xMin = FLOOR(bbox.xMin);
+   *     bbox.yMin = FLOOR(bbox.yMin);
+   *     bbox.xMax = CEILING(bbox.xMax);
+   *     bbox.yMax = CEILING(bbox.yMax);
+   *   ```
+   *
+   *   To get the bbox in pixel coordinates, set `bbox_mode` to
+   *   @FT_GLYPH_BBOX_TRUNCATE.
+   *
+   *   To get the bbox in grid-fitted pixel coordinates, set `bbox_mode` to
+   *   @FT_GLYPH_BBOX_PIXELS.
+   */
   FT_EXPORT( void )
   FT_Glyph_Get_CBox( FT_Glyph  glyph,
                      FT_UInt   bbox_mode,
                      FT_BBox  *acbox );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Glyph_To_Bitmap                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Convert a given glyph object to a bitmap glyph object.             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    the_glyph   :: A pointer to a handle to the target glyph.          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    render_mode :: An enumeration that describes how the data is       */
-  /*                   rendered.                                           */
-  /*                                                                       */
-  /*    origin      :: A pointer to a vector used to translate the glyph   */
-  /*                   image before rendering.  Can be~0 (if no            */
-  /*                   translation).  The origin is expressed in           */
-  /*                   26.6 pixels.                                        */
-  /*                                                                       */
-  /*    destroy     :: A boolean that indicates that the original glyph    */
-  /*                   image should be destroyed by this function.  It is  */
-  /*                   never destroyed in case of error.                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function does nothing if the glyph format isn't scalable.     */
-  /*                                                                       */
-  /*    The glyph image is translated with the `origin' vector before      */
-  /*    rendering.                                                         */
-  /*                                                                       */
-  /*    The first parameter is a pointer to an @FT_Glyph handle, that will */
-  /*    be _replaced_ by this function (with newly allocated data).        */
-  /*    Typically, you would use (omitting error handling):                */
-  /*                                                                       */
-  /*                                                                       */
-  /*      {                                                                */
-  /*        FT_Glyph        glyph;                                         */
-  /*        FT_BitmapGlyph  glyph_bitmap;                                  */
-  /*                                                                       */
-  /*                                                                       */
-  /*        // load glyph                                                  */
-  /*        error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );    */
-  /*                                                                       */
-  /*        // extract glyph image                                         */
-  /*        error = FT_Get_Glyph( face->glyph, &glyph );                   */
-  /*                                                                       */
-  /*        // convert to a bitmap (default render mode + destroying old)  */
-  /*        if ( glyph->format != FT_GLYPH_FORMAT_BITMAP )                 */
-  /*        {                                                              */
-  /*          error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL,   */
-  /*                                      0, 1 );                          */
-  /*          if ( error ) // `glyph' unchanged                            */
-  /*            ...                                                        */
-  /*        }                                                              */
-  /*                                                                       */
-  /*        // access bitmap content by typecasting                        */
-  /*        glyph_bitmap = (FT_BitmapGlyph)glyph;                          */
-  /*                                                                       */
-  /*        // do funny stuff with it, like blitting/drawing               */
-  /*        ...                                                            */
-  /*                                                                       */
-  /*        // discard glyph image (bitmap or not)                         */
-  /*        FT_Done_Glyph( glyph );                                        */
-  /*      }                                                                */
-  /*                                                                       */
-  /*                                                                       */
-  /*    Here another example, again without error handling:                */
-  /*                                                                       */
-  /*                                                                       */
-  /*      {                                                                */
-  /*        FT_Glyph  glyphs[MAX_GLYPHS]                                   */
-  /*                                                                       */
-  /*                                                                       */
-  /*        ...                                                            */
-  /*                                                                       */
-  /*        for ( idx = 0; i < MAX_GLYPHS; i++ )                           */
-  /*          error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||       */
-  /*                  FT_Get_Glyph ( face->glyph, &glyph[idx] );           */
-  /*                                                                       */
-  /*        ...                                                            */
-  /*                                                                       */
-  /*        for ( idx = 0; i < MAX_GLYPHS; i++ )                           */
-  /*        {                                                              */
-  /*          FT_Glyph  bitmap = glyphs[idx];                              */
-  /*                                                                       */
-  /*                                                                       */
-  /*          ...                                                          */
-  /*                                                                       */
-  /*          // after this call, `bitmap' no longer points into           */
-  /*          // the `glyphs' array (and the old value isn't destroyed)    */
-  /*          FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 );    */
-  /*                                                                       */
-  /*          ...                                                          */
-  /*                                                                       */
-  /*          FT_Done_Glyph( bitmap );                                     */
-  /*        }                                                              */
-  /*                                                                       */
-  /*        ...                                                            */
-  /*                                                                       */
-  /*        for ( idx = 0; i < MAX_GLYPHS; i++ )                           */
-  /*          FT_Done_Glyph( glyphs[idx] );                                */
-  /*      }                                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Glyph_To_Bitmap
+   *
+   * @description:
+   *   Convert a given glyph object to a bitmap glyph object.
+   *
+   * @inout:
+   *   the_glyph ::
+   *     A pointer to a handle to the target glyph.
+   *
+   * @input:
+   *   render_mode ::
+   *     An enumeration that describes how the data is rendered.
+   *
+   *   origin ::
+   *     A pointer to a vector used to translate the glyph image before
+   *     rendering.  Can be~0 (if no translation).  The origin is expressed
+   *     in 26.6 pixels.
+   *
+   *   destroy ::
+   *     A boolean that indicates that the original glyph image should be
+   *     destroyed by this function.  It is never destroyed in case of error.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function does nothing if the glyph format isn't scalable.
+   *
+   *   The glyph image is translated with the `origin` vector before
+   *   rendering.
+   *
+   *   The first parameter is a pointer to an @FT_Glyph handle, that will be
+   *   _replaced_ by this function (with newly allocated data).  Typically,
+   *   you would use (omitting error handling):
+   *
+   *   ```
+   *     FT_Glyph        glyph;
+   *     FT_BitmapGlyph  glyph_bitmap;
+   *
+   *
+   *     // load glyph
+   *     error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );
+   *
+   *     // extract glyph image
+   *     error = FT_Get_Glyph( face->glyph, &glyph );
+   *
+   *     // convert to a bitmap (default render mode + destroying old)
+   *     if ( glyph->format != FT_GLYPH_FORMAT_BITMAP )
+   *     {
+   *       error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL,
+   *                                     0, 1 );
+   *       if ( error ) // `glyph' unchanged
+   *         ...
+   *     }
+   *
+   *     // access bitmap content by typecasting
+   *     glyph_bitmap = (FT_BitmapGlyph)glyph;
+   *
+   *     // do funny stuff with it, like blitting/drawing
+   *     ...
+   *
+   *     // discard glyph image (bitmap or not)
+   *     FT_Done_Glyph( glyph );
+   *   ```
+   *
+   *   Here is another example, again without error handling:
+   *
+   *   ```
+   *     FT_Glyph  glyphs[MAX_GLYPHS]
+   *
+   *
+   *     ...
+   *
+   *     for ( idx = 0; i < MAX_GLYPHS; i++ )
+   *       error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||
+   *               FT_Get_Glyph ( face->glyph, &glyphs[idx] );
+   *
+   *     ...
+   *
+   *     for ( idx = 0; i < MAX_GLYPHS; i++ )
+   *     {
+   *       FT_Glyph  bitmap = glyphs[idx];
+   *
+   *
+   *       ...
+   *
+   *       // after this call, `bitmap' no longer points into
+   *       // the `glyphs' array (and the old value isn't destroyed)
+   *       FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 );
+   *
+   *       ...
+   *
+   *       FT_Done_Glyph( bitmap );
+   *     }
+   *
+   *     ...
+   *
+   *     for ( idx = 0; i < MAX_GLYPHS; i++ )
+   *       FT_Done_Glyph( glyphs[idx] );
+   *   ```
+   */
   FT_EXPORT( FT_Error )
   FT_Glyph_To_Bitmap( FT_Glyph*       the_glyph,
                       FT_Render_Mode  render_mode,
@@ -528,17 +576,18 @@ FT_BEGIN_HEADER
                       FT_Bool         destroy );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_Glyph                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroy a given glyph.                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    glyph :: A handle to the target glyph object.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_Glyph
+   *
+   * @description:
+   *   Destroy a given glyph.
+   *
+   * @input:
+   *   glyph ::
+   *     A handle to the target glyph object.
+   */
   FT_EXPORT( void )
   FT_Done_Glyph( FT_Glyph  glyph );
 
@@ -547,54 +596,56 @@ FT_BEGIN_HEADER
 
   /* other helpful functions */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    computations                                                       */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Matrix_Multiply                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Perform the matrix operation `b = a*b'.                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: A pointer to matrix `a'.                                      */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    b :: A pointer to matrix `b'.                                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The result is undefined if either `a' or `b' is zero.              */
-  /*                                                                       */
-  /*    Since the function uses wrap-around arithmetic, results become     */
-  /*    meaningless if the arguments are very large.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   computations
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Matrix_Multiply
+   *
+   * @description:
+   *   Perform the matrix operation `b = a*b`.
+   *
+   * @input:
+   *   a ::
+   *     A pointer to matrix `a`.
+   *
+   * @inout:
+   *   b ::
+   *     A pointer to matrix `b`.
+   *
+   * @note:
+   *   The result is undefined if either `a` or `b` is zero.
+   *
+   *   Since the function uses wrap-around arithmetic, results become
+   *   meaningless if the arguments are very large.
+   */
   FT_EXPORT( void )
   FT_Matrix_Multiply( const FT_Matrix*  a,
                       FT_Matrix*        b );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Matrix_Invert                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Invert a 2x2 matrix.  Return an error if it can't be inverted.     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    matrix :: A pointer to the target matrix.  Remains untouched in    */
-  /*              case of error.                                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Matrix_Invert
+   *
+   * @description:
+   *   Invert a 2x2 matrix.  Return an error if it can't be inverted.
+   *
+   * @inout:
+   *   matrix ::
+   *     A pointer to the target matrix.  Remains untouched in case of error.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Matrix_Invert( FT_Matrix*  matrix );
 
diff --git a/thirdparty/freetype/include/freetype/ftgxval.h b/thirdparty/freetype/include/freetype/ftgxval.h
index 8382d59954..b14f637c56 100644
--- a/thirdparty/freetype/include/freetype/ftgxval.h
+++ b/thirdparty/freetype/include/freetype/ftgxval.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgxval.h                                                              */
-/*                                                                         */
-/*    FreeType API for validating TrueTypeGX/AAT tables (specification).   */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Masatake YAMATO, Redhat K.K,                                           */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgxval.h
+ *
+ *   FreeType API for validating TrueTypeGX/AAT tables (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * Masatake YAMATO, Redhat K.K,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef FTGXVAL_H_
@@ -41,43 +41,43 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    gx_validation                                                      */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    TrueTypeGX/AAT Validation                                          */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    An API to validate TrueTypeGX/AAT tables.                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of functions to validate     */
-  /*    some TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd,  */
-  /*    trak, prop, lcar).                                                 */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_TrueTypeGX_Validate                                             */
-  /*    FT_TrueTypeGX_Free                                                 */
-  /*                                                                       */
-  /*    FT_ClassicKern_Validate                                            */
-  /*    FT_ClassicKern_Free                                                */
-  /*                                                                       */
-  /*    FT_VALIDATE_GX_LENGTH                                              */
-  /*    FT_VALIDATE_GXXXX                                                  */
-  /*    FT_VALIDATE_CKERNXXX                                               */
-  /*                                                                       */
-  /*************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*                                                                       */
-  /* Warning: Use FT_VALIDATE_XXX to validate a table.                     */
-  /*          Following definitions are for gxvalid developers.            */
-  /*                                                                       */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   gx_validation
+   *
+   * @title:
+   *   TrueTypeGX/AAT Validation
+   *
+   * @abstract:
+   *   An API to validate TrueTypeGX/AAT tables.
+   *
+   * @description:
+   *   This section contains the declaration of functions to validate some
+   *   TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak,
+   *   prop, lcar).
+   *
+   * @order:
+   *   FT_TrueTypeGX_Validate
+   *   FT_TrueTypeGX_Free
+   *
+   *   FT_ClassicKern_Validate
+   *   FT_ClassicKern_Free
+   *
+   *   FT_VALIDATE_GX_LENGTH
+   *   FT_VALIDATE_GXXXX
+   *   FT_VALIDATE_CKERNXXX
+   *
+   */
+
+  /**************************************************************************
+   *
+   *
+   * Warning: Use `FT_VALIDATE_XXX` to validate a table.
+   *          Following definitions are for gxvalid developers.
+   *
+   *
+   */
 
 #define FT_VALIDATE_feat_INDEX     0
 #define FT_VALIDATE_mort_INDEX     1
@@ -92,14 +92,14 @@ FT_BEGIN_HEADER
 #define FT_VALIDATE_GX_LAST_INDEX  FT_VALIDATE_lcar_INDEX
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_VALIDATE_GX_LENGTH
    *
    * @description:
    *   The number of tables checked in this module.  Use it as a parameter
-   *   for the `table-length' argument of function @FT_TrueTypeGX_Validate.
+   *   for the `table-length` argument of function @FT_TrueTypeGX_Validate.
    */
 #define FT_VALIDATE_GX_LENGTH  ( FT_VALIDATE_GX_LAST_INDEX + 1 )
 
@@ -112,51 +112,51 @@ FT_BEGIN_HEADER
           ( FT_VALIDATE_GX_START << FT_VALIDATE_##tag##_INDEX )
 
 
- /**********************************************************************
-  *
-  * @enum:
-  *    FT_VALIDATE_GXXXX
-  *
-  * @description:
-  *    A list of bit-field constants used with @FT_TrueTypeGX_Validate to
-  *    indicate which TrueTypeGX/AAT Type tables should be validated.
-  *
-  * @values:
-  *    FT_VALIDATE_feat ::
-  *      Validate `feat' table.
-  *
-  *    FT_VALIDATE_mort ::
-  *      Validate `mort' table.
-  *
-  *    FT_VALIDATE_morx ::
-  *      Validate `morx' table.
-  *
-  *    FT_VALIDATE_bsln ::
-  *      Validate `bsln' table.
-  *
-  *    FT_VALIDATE_just ::
-  *      Validate `just' table.
-  *
-  *    FT_VALIDATE_kern ::
-  *      Validate `kern' table.
-  *
-  *    FT_VALIDATE_opbd ::
-  *      Validate `opbd' table.
-  *
-  *    FT_VALIDATE_trak ::
-  *      Validate `trak' table.
-  *
-  *    FT_VALIDATE_prop ::
-  *      Validate `prop' table.
-  *
-  *    FT_VALIDATE_lcar ::
-  *      Validate `lcar' table.
-  *
-  *    FT_VALIDATE_GX ::
-  *      Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern,
-  *      opbd, trak, prop and lcar).
-  *
-  */
+  /**************************************************************************
+   *
+   * @enum:
+   *    FT_VALIDATE_GXXXX
+   *
+   * @description:
+   *    A list of bit-field constants used with @FT_TrueTypeGX_Validate to
+   *    indicate which TrueTypeGX/AAT Type tables should be validated.
+   *
+   * @values:
+   *    FT_VALIDATE_feat ::
+   *      Validate 'feat' table.
+   *
+   *    FT_VALIDATE_mort ::
+   *      Validate 'mort' table.
+   *
+   *    FT_VALIDATE_morx ::
+   *      Validate 'morx' table.
+   *
+   *    FT_VALIDATE_bsln ::
+   *      Validate 'bsln' table.
+   *
+   *    FT_VALIDATE_just ::
+   *      Validate 'just' table.
+   *
+   *    FT_VALIDATE_kern ::
+   *      Validate 'kern' table.
+   *
+   *    FT_VALIDATE_opbd ::
+   *      Validate 'opbd' table.
+   *
+   *    FT_VALIDATE_trak ::
+   *      Validate 'trak' table.
+   *
+   *    FT_VALIDATE_prop ::
+   *      Validate 'prop' table.
+   *
+   *    FT_VALIDATE_lcar ::
+   *      Validate 'lcar' table.
+   *
+   *    FT_VALIDATE_GX ::
+   *      Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern,
+   *      opbd, trak, prop and lcar).
+   *
+   */
 
 #define FT_VALIDATE_feat  FT_VALIDATE_GX_BITFIELD( feat )
 #define FT_VALIDATE_mort  FT_VALIDATE_GX_BITFIELD( mort )
@@ -181,47 +181,47 @@ FT_BEGIN_HEADER
                           FT_VALIDATE_lcar )
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_TrueTypeGX_Validate
-  *
-  * @description:
-  *    Validate various TrueTypeGX tables to assure that all offsets and
-  *    indices are valid.  The idea is that a higher-level library that
-  *    actually does the text layout can access those tables without
-  *    error checking (which can be quite time consuming).
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  *    validation_flags ::
-  *       A bit field that specifies the tables to be validated.  See
-  *       @FT_VALIDATE_GXXXX for possible values.
-  *
-  *    table_length ::
-  *       The size of the `tables' array.  Normally, @FT_VALIDATE_GX_LENGTH
-  *       should be passed.
-  *
-  * @output:
-  *    tables ::
-  *       The array where all validated sfnt tables are stored.
-  *       The array itself must be allocated by a client.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   This function only works with TrueTypeGX fonts, returning an error
-  *   otherwise.
-  *
-  *   After use, the application should deallocate the buffers pointed to by
-  *   each `tables' element, by calling @FT_TrueTypeGX_Free.  A NULL value
-  *   indicates that the table either doesn't exist in the font, the
-  *   application hasn't asked for validation, or the validator doesn't have
-  *   the ability to validate the sfnt table.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_TrueTypeGX_Validate
+   *
+   * @description:
+   *    Validate various TrueTypeGX tables to assure that all offsets and
+   *    indices are valid.  The idea is that a higher-level library that
+   *    actually does the text layout can access those tables without error
+   *    checking (which can be quite time consuming).
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    validation_flags ::
+   *      A bit field that specifies the tables to be validated.  See
+   *      @FT_VALIDATE_GXXXX for possible values.
+   *
+   *    table_length ::
+   *      The size of the `tables` array.  Normally, @FT_VALIDATE_GX_LENGTH
+   *      should be passed.
+   *
+   * @output:
+   *    tables ::
+   *      The array where all validated sfnt tables are stored.  The array
+   *      itself must be allocated by a client.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function only works with TrueTypeGX fonts, returning an error
+   *   otherwise.
+   *
+   *   After use, the application should deallocate the buffers pointed to by
+   *   each `tables` element, by calling @FT_TrueTypeGX_Free.  A `NULL` value
+   *   indicates that the table either doesn't exist in the font, the
+   *   application hasn't asked for validation, or the validator doesn't have
+   *   the ability to validate the sfnt table.
+   */
   FT_EXPORT( FT_Error )
   FT_TrueTypeGX_Validate( FT_Face   face,
                           FT_UInt   validation_flags,
@@ -229,119 +229,117 @@ FT_BEGIN_HEADER
                           FT_UInt   table_length );
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_TrueTypeGX_Free
-  *
-  * @description:
-  *    Free the buffer allocated by TrueTypeGX validator.
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  *    table ::
-  *       The pointer to the buffer allocated by
-  *       @FT_TrueTypeGX_Validate.
-  *
-  * @note:
-  *   This function must be used to free the buffer allocated by
-  *   @FT_TrueTypeGX_Validate only.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_TrueTypeGX_Free
+   *
+   * @description:
+   *    Free the buffer allocated by TrueTypeGX validator.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    table ::
+   *      The pointer to the buffer allocated by @FT_TrueTypeGX_Validate.
+   *
+   * @note:
+   *   This function must be used to free the buffer allocated by
+   *   @FT_TrueTypeGX_Validate only.
+   */
   FT_EXPORT( void )
   FT_TrueTypeGX_Free( FT_Face   face,
                       FT_Bytes  table );
 
 
- /**********************************************************************
-  *
-  * @enum:
-  *    FT_VALIDATE_CKERNXXX
-  *
-  * @description:
-  *    A list of bit-field constants used with @FT_ClassicKern_Validate
-  *    to indicate the classic kern dialect or dialects.  If the selected
-  *    type doesn't fit, @FT_ClassicKern_Validate regards the table as
-  *    invalid.
-  *
-  * @values:
-  *    FT_VALIDATE_MS ::
-  *      Handle the `kern' table as a classic Microsoft kern table.
-  *
-  *    FT_VALIDATE_APPLE ::
-  *      Handle the `kern' table as a classic Apple kern table.
-  *
-  *    FT_VALIDATE_CKERN ::
-  *      Handle the `kern' as either classic Apple or Microsoft kern table.
-  */
+  /**************************************************************************
+   *
+   * @enum:
+   *    FT_VALIDATE_CKERNXXX
+   *
+   * @description:
+   *    A list of bit-field constants used with @FT_ClassicKern_Validate to
+   *    indicate the classic kern dialect or dialects.  If the selected type
+   *    doesn't fit, @FT_ClassicKern_Validate regards the table as invalid.
+   *
+   * @values:
+   *    FT_VALIDATE_MS ::
+   *      Handle the 'kern' table as a classic Microsoft kern table.
+   *
+   *    FT_VALIDATE_APPLE ::
+   *      Handle the 'kern' table as a classic Apple kern table.
+   *
+   *    FT_VALIDATE_CKERN ::
+   *      Handle the 'kern' as either classic Apple or Microsoft kern table.
+   */
 #define FT_VALIDATE_MS     ( FT_VALIDATE_GX_START << 0 )
 #define FT_VALIDATE_APPLE  ( FT_VALIDATE_GX_START << 1 )
 
 #define FT_VALIDATE_CKERN  ( FT_VALIDATE_MS | FT_VALIDATE_APPLE )
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_ClassicKern_Validate
-  *
-  * @description:
-  *    Validate classic (16-bit format) kern table to assure that the offsets
-  *    and indices are valid.  The idea is that a higher-level library that
-  *    actually does the text layout can access those tables without error
-  *    checking (which can be quite time consuming).
-  *
-  *    The `kern' table validator in @FT_TrueTypeGX_Validate deals with both
-  *    the new 32-bit format and the classic 16-bit format, while
-  *    FT_ClassicKern_Validate only supports the classic 16-bit format.
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  *    validation_flags ::
-  *       A bit field that specifies the dialect to be validated.  See
-  *       @FT_VALIDATE_CKERNXXX for possible values.
-  *
-  * @output:
-  *    ckern_table ::
-  *       A pointer to the kern table.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   After use, the application should deallocate the buffers pointed to by
-  *   `ckern_table', by calling @FT_ClassicKern_Free.  A NULL value
-  *   indicates that the table doesn't exist in the font.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_ClassicKern_Validate
+   *
+   * @description:
+   *    Validate classic (16-bit format) kern table to assure that the
+   *    offsets and indices are valid.  The idea is that a higher-level
+   *    library that actually does the text layout can access those tables
+   *    without error checking (which can be quite time consuming).
+   *
+   *    The 'kern' table validator in @FT_TrueTypeGX_Validate deals with both
+   *    the new 32-bit format and the classic 16-bit format, while
+   *    FT_ClassicKern_Validate only supports the classic 16-bit format.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    validation_flags ::
+   *      A bit field that specifies the dialect to be validated.  See
+   *      @FT_VALIDATE_CKERNXXX for possible values.
+   *
+   * @output:
+   *    ckern_table ::
+   *      A pointer to the kern table.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   After use, the application should deallocate the buffers pointed to by
+   *   `ckern_table`, by calling @FT_ClassicKern_Free.  A `NULL` value
+   *   indicates that the table doesn't exist in the font.
+   */
   FT_EXPORT( FT_Error )
   FT_ClassicKern_Validate( FT_Face    face,
                            FT_UInt    validation_flags,
                            FT_Bytes  *ckern_table );
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_ClassicKern_Free
-  *
-  * @description:
-  *    Free the buffer allocated by classic Kern validator.
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  *    table ::
-  *       The pointer to the buffer that is allocated by
-  *       @FT_ClassicKern_Validate.
-  *
-  * @note:
-  *   This function must be used to free the buffer allocated by
-  *   @FT_ClassicKern_Validate only.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_ClassicKern_Free
+   *
+   * @description:
+   *    Free the buffer allocated by classic Kern validator.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    table ::
+   *      The pointer to the buffer that is allocated by
+   *      @FT_ClassicKern_Validate.
+   *
+   * @note:
+   *   This function must be used to free the buffer allocated by
+   *   @FT_ClassicKern_Validate only.
+   */
   FT_EXPORT( void )
   FT_ClassicKern_Free( FT_Face   face,
                        FT_Bytes  table );
diff --git a/thirdparty/freetype/include/freetype/ftgzip.h b/thirdparty/freetype/include/freetype/ftgzip.h
index db033da0ed..418c61228e 100644
--- a/thirdparty/freetype/include/freetype/ftgzip.h
+++ b/thirdparty/freetype/include/freetype/ftgzip.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgzip.h                                                               */
-/*                                                                         */
-/*    Gzip-compressed stream support.                                      */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgzip.h
+ *
+ *   Gzip-compressed stream support.
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTGZIP_H_
@@ -31,108 +31,108 @@
 
 FT_BEGIN_HEADER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    gzip                                                               */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    GZIP Streams                                                       */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Using gzip-compressed font files.                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of Gzip-specific functions.  */
-  /*                                                                       */
-  /*************************************************************************/
-
-
- /************************************************************************
-  *
-  * @function:
-  *   FT_Stream_OpenGzip
-  *
-  * @description:
-  *   Open a new stream to parse gzip-compressed font files.  This is
-  *   mainly used to support the compressed `*.pcf.gz' fonts that come
-  *   with XFree86.
-  *
-  * @input:
-  *   stream ::
-  *     The target embedding stream.
-  *
-  *   source ::
-  *     The source stream.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   The source stream must be opened _before_ calling this function.
-  *
-  *   Calling the internal function `FT_Stream_Close' on the new stream will
-  *   *not* call `FT_Stream_Close' on the source stream.  None of the stream
-  *   objects will be released to the heap.
-  *
-  *   The stream implementation is very basic and resets the decompression
-  *   process each time seeking backwards is needed within the stream.
-  *
-  *   In certain builds of the library, gzip compression recognition is
-  *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
-  *   This means that if no font driver is capable of handling the raw
-  *   compressed file, the library will try to open a gzipped stream from
-  *   it and re-open the face with it.
-  *
-  *   This function may return `FT_Err_Unimplemented_Feature' if your build
-  *   of FreeType was not compiled with zlib support.
-  */
+  /**************************************************************************
+   *
+   * @section:
+   *   gzip
+   *
+   * @title:
+   *   GZIP Streams
+   *
+   * @abstract:
+   *   Using gzip-compressed font files.
+   *
+   * @description:
+   *   This section contains the declaration of Gzip-specific functions.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Stream_OpenGzip
+   *
+   * @description:
+   *   Open a new stream to parse gzip-compressed font files.  This is mainly
+   *   used to support the compressed `*.pcf.gz` fonts that come with
+   *   XFree86.
+   *
+   * @input:
+   *   stream ::
+   *     The target embedding stream.
+   *
+   *   source ::
+   *     The source stream.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The source stream must be opened _before_ calling this function.
+   *
+   *   Calling the internal function `FT_Stream_Close` on the new stream will
+   *   **not** call `FT_Stream_Close` on the source stream.  None of the
+   *   stream objects will be released to the heap.
+   *
+   *   The stream implementation is very basic and resets the decompression
+   *   process each time seeking backwards is needed within the stream.
+   *
+   *   In certain builds of the library, gzip compression recognition is
+   *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
+   *   This means that if no font driver is capable of handling the raw
+   *   compressed file, the library will try to open a gzipped stream from it
+   *   and re-open the face with it.
+   *
+   *   This function may return `FT_Err_Unimplemented_Feature` if your build
+   *   of FreeType was not compiled with zlib support.
+   */
   FT_EXPORT( FT_Error )
   FT_Stream_OpenGzip( FT_Stream  stream,
                       FT_Stream  source );
 
 
- /************************************************************************
-  *
-  * @function:
-  *   FT_Gzip_Uncompress
-  *
-  * @description:
-  *   Decompress a zipped input buffer into an output buffer.  This function
-  *   is modeled after zlib's `uncompress' function.
-  *
-  * @input:
-  *   memory ::
-  *     A FreeType memory handle.
-  *
-  *   input ::
-  *     The input buffer.
-  *
-  *   input_len ::
-  *     The length of the input buffer.
-  *
-  * @output:
-  *   output::
-  *     The output buffer.
-  *
-  * @inout:
-  *   output_len ::
-  *     Before calling the function, this is the total size of the output
-  *     buffer, which must be large enough to hold the entire uncompressed
-  *     data (so the size of the uncompressed data must be known in
-  *     advance).  After calling the function, `output_len' is the size of
-  *     the used data in `output'.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   This function may return `FT_Err_Unimplemented_Feature' if your build
-  *   of FreeType was not compiled with zlib support.
-  *
-  * @since:
-  *   2.5.1
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Gzip_Uncompress
+   *
+   * @description:
+   *   Decompress a zipped input buffer into an output buffer.  This function
+   *   is modeled after zlib's `uncompress` function.
+   *
+   * @input:
+   *   memory ::
+   *     A FreeType memory handle.
+   *
+   *   input ::
+   *     The input buffer.
+   *
+   *   input_len ::
+   *     The length of the input buffer.
+   *
+   * @output:
+   *   output ::
+   *     The output buffer.
+   *
+   * @inout:
+   *   output_len ::
+   *     Before calling the function, this is the total size of the output
+   *     buffer, which must be large enough to hold the entire uncompressed
+   *     data (so the size of the uncompressed data must be known in
+   *     advance).  After calling the function, `output_len` is the size of
+   *     the used data in `output`.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function may return `FT_Err_Unimplemented_Feature` if your build
+   *   of FreeType was not compiled with zlib support.
+   *
+   * @since:
+   *   2.5.1
+   */
   FT_EXPORT( FT_Error )
   FT_Gzip_Uncompress( FT_Memory       memory,
                       FT_Byte*        output,
diff --git a/thirdparty/freetype/include/freetype/ftimage.h b/thirdparty/freetype/include/freetype/ftimage.h
index 79ede1959d..d640b0b0aa 100644
--- a/thirdparty/freetype/include/freetype/ftimage.h
+++ b/thirdparty/freetype/include/freetype/ftimage.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftimage.h                                                              */
-/*                                                                         */
-/*    FreeType glyph image formats and default raster interface            */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Note: A `raster' is simply a scan-line converter, used to render      */
-  /*       FT_Outlines into FT_Bitmaps.                                    */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftimage.h
+ *
+ *   FreeType glyph image formats and default raster interface
+ *   (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * Note: A 'raster' is simply a scan-line converter, used to render
+   *       FT_Outlines into FT_Bitmaps.
+   *
+   */
 
 
 #ifndef FTIMAGE_H_
@@ -37,40 +37,42 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    basic_types                                                        */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Pos                                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The type FT_Pos is used to store vectorial coordinates.  Depending */
-  /*    on the context, these can represent distances in integer font      */
-  /*    units, or 16.16, or 26.6 fixed-point pixel coordinates.            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   basic_types
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Pos
+   *
+   * @description:
+   *   The type FT_Pos is used to store vectorial coordinates.  Depending on
+   *   the context, these can represent distances in integer font units, or
+   *   16.16, or 26.6 fixed-point pixel coordinates.
+   */
   typedef signed long  FT_Pos;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Vector                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple structure used to store a 2D vector; coordinates are of   */
-  /*    the FT_Pos type.                                                   */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    x :: The horizontal coordinate.                                    */
-  /*    y :: The vertical coordinate.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Vector
+   *
+   * @description:
+   *   A simple structure used to store a 2D vector; coordinates are of the
+   *   FT_Pos type.
+   *
+   * @fields:
+   *   x ::
+   *     The horizontal coordinate.
+   *   y ::
+   *     The vertical coordinate.
+   */
   typedef struct  FT_Vector_
   {
     FT_Pos  x;
@@ -79,39 +81,41 @@ FT_BEGIN_HEADER
   } FT_Vector;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_BBox                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to hold an outline's bounding box, i.e., the      */
-  /*    coordinates of its extrema in the horizontal and vertical          */
-  /*    directions.                                                        */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    xMin :: The horizontal minimum (left-most).                        */
-  /*                                                                       */
-  /*    yMin :: The vertical minimum (bottom-most).                        */
-  /*                                                                       */
-  /*    xMax :: The horizontal maximum (right-most).                       */
-  /*                                                                       */
-  /*    yMax :: The vertical maximum (top-most).                           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The bounding box is specified with the coordinates of the lower    */
-  /*    left and the upper right corner.  In PostScript, those values are  */
-  /*    often called (llx,lly) and (urx,ury), respectively.                */
-  /*                                                                       */
-  /*    If `yMin' is negative, this value gives the glyph's descender.     */
-  /*    Otherwise, the glyph doesn't descend below the baseline.           */
-  /*    Similarly, if `ymax' is positive, this value gives the glyph's     */
-  /*    ascender.                                                          */
-  /*                                                                       */
-  /*    `xMin' gives the horizontal distance from the glyph's origin to    */
-  /*    the left edge of the glyph's bounding box.  If `xMin' is negative, */
-  /*    the glyph extends to the left of the origin.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_BBox
+   *
+   * @description:
+   *   A structure used to hold an outline's bounding box, i.e., the
+   *   coordinates of its extrema in the horizontal and vertical directions.
+   *
+   * @fields:
+   *   xMin ::
+   *     The horizontal minimum (left-most).
+   *
+   *   yMin ::
+   *     The vertical minimum (bottom-most).
+   *
+   *   xMax ::
+   *     The horizontal maximum (right-most).
+   *
+   *   yMax ::
+   *     The vertical maximum (top-most).
+   *
+   * @note:
+   *   The bounding box is specified with the coordinates of the lower left
+   *   and the upper right corner.  In PostScript, those values are often
+   *   called (llx,lly) and (urx,ury), respectively.
+   *
+   *   If `yMin` is negative, this value gives the glyph's descender.
+   *   Otherwise, the glyph doesn't descend below the baseline.  Similarly,
+   *   if `ymax` is positive, this value gives the glyph's ascender.
+   *
+   *   `xMin` gives the horizontal distance from the glyph's origin to the
+   *   left edge of the glyph's bounding box.  If `xMin` is negative, the
+   *   glyph extends to the left of the origin.
+   */
   typedef struct  FT_BBox_
   {
     FT_Pos  xMin, yMin;
@@ -120,63 +124,60 @@ FT_BEGIN_HEADER
   } FT_BBox;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Pixel_Mode                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration type used to describe the format of pixels in a     */
-  /*    given bitmap.  Note that additional formats may be added in the    */
-  /*    future.                                                            */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_PIXEL_MODE_NONE ::                                              */
-  /*      Value~0 is reserved.                                             */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_MONO ::                                              */
-  /*      A monochrome bitmap, using 1~bit per pixel.  Note that pixels    */
-  /*      are stored in most-significant order (MSB), which means that     */
-  /*      the left-most pixel in a byte has value 128.                     */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_GRAY ::                                              */
-  /*      An 8-bit bitmap, generally used to represent anti-aliased glyph  */
-  /*      images.  Each pixel is stored in one byte.  Note that the number */
-  /*      of `gray' levels is stored in the `num_grays' field of the       */
-  /*      @FT_Bitmap structure (it generally is 256).                      */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_GRAY2 ::                                             */
-  /*      A 2-bit per pixel bitmap, used to represent embedded             */
-  /*      anti-aliased bitmaps in font files according to the OpenType     */
-  /*      specification.  We haven't found a single font using this        */
-  /*      format, however.                                                 */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_GRAY4 ::                                             */
-  /*      A 4-bit per pixel bitmap, representing embedded anti-aliased     */
-  /*      bitmaps in font files according to the OpenType specification.   */
-  /*      We haven't found a single font using this format, however.       */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_LCD ::                                               */
-  /*      An 8-bit bitmap, representing RGB or BGR decimated glyph images  */
-  /*      used for display on LCD displays; the bitmap is three times      */
-  /*      wider than the original glyph image.  See also                   */
-  /*      @FT_RENDER_MODE_LCD.                                             */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_LCD_V ::                                             */
-  /*      An 8-bit bitmap, representing RGB or BGR decimated glyph images  */
-  /*      used for display on rotated LCD displays; the bitmap is three    */
-  /*      times taller than the original glyph image.  See also            */
-  /*      @FT_RENDER_MODE_LCD_V.                                           */
-  /*                                                                       */
-  /*    FT_PIXEL_MODE_BGRA ::                                              */
-  /*      [Since 2.5] An image with four 8-bit channels per pixel,         */
-  /*      representing a color image (such as emoticons) with alpha        */
-  /*      channel.  For each pixel, the format is BGRA, which means, the   */
-  /*      blue channel comes first in memory.  The color channels are      */
-  /*      pre-multiplied and in the sRGB colorspace.  For example, full    */
-  /*      red at half-translucent opacity will be represented as           */
-  /*      `00,00,80,80', not `00,00,FF,80'.  See also @FT_LOAD_COLOR.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Pixel_Mode
+   *
+   * @description:
+   *   An enumeration type used to describe the format of pixels in a given
+   *   bitmap.  Note that additional formats may be added in the future.
+   *
+   * @values:
+   *   FT_PIXEL_MODE_NONE ::
+   *     Value~0 is reserved.
+   *
+   *   FT_PIXEL_MODE_MONO ::
+   *     A monochrome bitmap, using 1~bit per pixel.  Note that pixels are
+   *     stored in most-significant order (MSB), which means that the
+   *     left-most pixel in a byte has value 128.
+   *
+   *   FT_PIXEL_MODE_GRAY ::
+   *     An 8-bit bitmap, generally used to represent anti-aliased glyph
+   *     images.  Each pixel is stored in one byte.  Note that the number of
+   *     'gray' levels is stored in the `num_grays` field of the @FT_Bitmap
+   *     structure (it generally is 256).
+   *
+   *   FT_PIXEL_MODE_GRAY2 ::
+   *     A 2-bit per pixel bitmap, used to represent embedded anti-aliased
+   *     bitmaps in font files according to the OpenType specification.  We
+   *     haven't found a single font using this format, however.
+   *
+   *   FT_PIXEL_MODE_GRAY4 ::
+   *     A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps
+   *     in font files according to the OpenType specification.  We haven't
+   *     found a single font using this format, however.
+   *
+   *   FT_PIXEL_MODE_LCD ::
+   *     An 8-bit bitmap, representing RGB or BGR decimated glyph images used
+   *     for display on LCD displays; the bitmap is three times wider than
+   *     the original glyph image.  See also @FT_RENDER_MODE_LCD.
+   *
+   *   FT_PIXEL_MODE_LCD_V ::
+   *     An 8-bit bitmap, representing RGB or BGR decimated glyph images used
+   *     for display on rotated LCD displays; the bitmap is three times
+   *     taller than the original glyph image.  See also
+   *     @FT_RENDER_MODE_LCD_V.
+   *
+   *   FT_PIXEL_MODE_BGRA ::
+   *     [Since 2.5] An image with four 8-bit channels per pixel,
+   *     representing a color image (such as emoticons) with alpha channel.
+   *     For each pixel, the format is BGRA, which means, the blue channel
+   *     comes first in memory.  The color channels are pre-multiplied and in
+   *     the sRGB colorspace.  For example, full red at half-translucent
+   *     opacity will be represented as '00,00,80,80', not '00,00,FF,80'.
+   *     See also @FT_LOAD_COLOR.
+   */
   typedef enum  FT_Pixel_Mode_
   {
     FT_PIXEL_MODE_NONE = 0,
@@ -193,7 +194,7 @@ FT_BEGIN_HEADER
   } FT_Pixel_Mode;
 
 
-  /* these constants are deprecated; use the corresponding `FT_Pixel_Mode' */
+  /* these constants are deprecated; use the corresponding `FT_Pixel_Mode` */
   /* values instead.                                                       */
 #define ft_pixel_mode_none   FT_PIXEL_MODE_NONE
 #define ft_pixel_mode_mono   FT_PIXEL_MODE_MONO
@@ -202,62 +203,61 @@ FT_BEGIN_HEADER
 #define ft_pixel_mode_pal4   FT_PIXEL_MODE_GRAY4
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Bitmap                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to describe a bitmap or pixmap to the raster.     */
-  /*    Note that we now manage pixmaps of various depths through the      */
-  /*    `pixel_mode' field.                                                */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    rows         :: The number of bitmap rows.                         */
-  /*                                                                       */
-  /*    width        :: The number of pixels in bitmap row.                */
-  /*                                                                       */
-  /*    pitch        :: The pitch's absolute value is the number of bytes  */
-  /*                    taken by one bitmap row, including padding.        */
-  /*                    However, the pitch is positive when the bitmap has */
-  /*                    a `down' flow, and negative when it has an `up'    */
-  /*                    flow.  In all cases, the pitch is an offset to add */
-  /*                    to a bitmap pointer in order to go down one row.   */
-  /*                                                                       */
-  /*                    Note that `padding' means the alignment of a       */
-  /*                    bitmap to a byte border, and FreeType functions    */
-  /*                    normally align to the smallest possible integer    */
-  /*                    value.                                             */
-  /*                                                                       */
-  /*                    For the B/W rasterizer, `pitch' is always an even  */
-  /*                    number.                                            */
-  /*                                                                       */
-  /*                    To change the pitch of a bitmap (say, to make it a */
-  /*                    multiple of 4), use @FT_Bitmap_Convert.            */
-  /*                    Alternatively, you might use callback functions to */
-  /*                    directly render to the application's surface; see  */
-  /*                    the file `example2.cpp' in the tutorial for a      */
-  /*                    demonstration.                                     */
-  /*                                                                       */
-  /*    buffer       :: A typeless pointer to the bitmap buffer.  This     */
-  /*                    value should be aligned on 32-bit boundaries in    */
-  /*                    most cases.                                        */
-  /*                                                                       */
-  /*    num_grays    :: This field is only used with                       */
-  /*                    @FT_PIXEL_MODE_GRAY; it gives the number of gray   */
-  /*                    levels used in the bitmap.                         */
-  /*                                                                       */
-  /*    pixel_mode   :: The pixel mode, i.e., how pixel bits are stored.   */
-  /*                    See @FT_Pixel_Mode for possible values.            */
-  /*                                                                       */
-  /*    palette_mode :: This field is intended for paletted pixel modes;   */
-  /*                    it indicates how the palette is stored.  Not       */
-  /*                    used currently.                                    */
-  /*                                                                       */
-  /*    palette      :: A typeless pointer to the bitmap palette; this     */
-  /*                    field is intended for paletted pixel modes.  Not   */
-  /*                    used currently.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Bitmap
+   *
+   * @description:
+   *   A structure used to describe a bitmap or pixmap to the raster.  Note
+   *   that we now manage pixmaps of various depths through the `pixel_mode`
+   *   field.
+   *
+   * @fields:
+   *   rows ::
+   *     The number of bitmap rows.
+   *
+   *   width ::
+   *     The number of pixels in bitmap row.
+   *
+   *   pitch ::
+   *     The pitch's absolute value is the number of bytes taken by one
+   *     bitmap row, including padding.  However, the pitch is positive when
+   *     the bitmap has a 'down' flow, and negative when it has an 'up' flow.
+   *     In all cases, the pitch is an offset to add to a bitmap pointer in
+   *     order to go down one row.
+   *
+   *     Note that 'padding' means the alignment of a bitmap to a byte
+   *     border, and FreeType functions normally align to the smallest
+   *     possible integer value.
+   *
+   *     For the B/W rasterizer, `pitch` is always an even number.
+   *
+   *     To change the pitch of a bitmap (say, to make it a multiple of 4),
+   *     use @FT_Bitmap_Convert.  Alternatively, you might use callback
+   *     functions to directly render to the application's surface; see the
+   *     file `example2.cpp` in the tutorial for a demonstration.
+   *
+   *   buffer ::
+   *     A typeless pointer to the bitmap buffer.  This value should be
+   *     aligned on 32-bit boundaries in most cases.
+   *
+   *   num_grays ::
+   *     This field is only used with @FT_PIXEL_MODE_GRAY; it gives the
+   *     number of gray levels used in the bitmap.
+   *
+   *   pixel_mode ::
+   *     The pixel mode, i.e., how pixel bits are stored.  See @FT_Pixel_Mode
+   *     for possible values.
+   *
+   *   palette_mode ::
+   *     This field is intended for paletted pixel modes; it indicates how
+   *     the palette is stored.  Not used currently.
+   *
+   *   palette ::
+   *     A typeless pointer to the bitmap palette; this field is intended for
+   *     paletted pixel modes.  Not used currently.
+   */
   typedef struct  FT_Bitmap_
   {
     unsigned int    rows;
@@ -272,65 +272,68 @@ FT_BEGIN_HEADER
   } FT_Bitmap;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    outline_processing                                                 */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Outline                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure is used to describe an outline to the scan-line     */
-  /*    converter.                                                         */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    n_contours :: The number of contours in the outline.               */
-  /*                                                                       */
-  /*    n_points   :: The number of points in the outline.                 */
-  /*                                                                       */
-  /*    points     :: A pointer to an array of `n_points' @FT_Vector       */
-  /*                  elements, giving the outline's point coordinates.    */
-  /*                                                                       */
-  /*    tags       :: A pointer to an array of `n_points' chars, giving    */
-  /*                  each outline point's type.                           */
-  /*                                                                       */
-  /*                  If bit~0 is unset, the point is `off' the curve,     */
-  /*                  i.e., a Bezier control point, while it is `on' if    */
-  /*                  set.                                                 */
-  /*                                                                       */
-  /*                  Bit~1 is meaningful for `off' points only.  If set,  */
-  /*                  it indicates a third-order Bezier arc control point; */
-  /*                  and a second-order control point if unset.           */
-  /*                                                                       */
-  /*                  If bit~2 is set, bits 5-7 contain the drop-out mode  */
-  /*                  (as defined in the OpenType specification; the value */
-  /*                  is the same as the argument to the SCANMODE          */
-  /*                  instruction).                                        */
-  /*                                                                       */
-  /*                  Bits 3 and~4 are reserved for internal purposes.     */
-  /*                                                                       */
-  /*    contours   :: An array of `n_contours' shorts, giving the end      */
-  /*                  point of each contour within the outline.  For       */
-  /*                  example, the first contour is defined by the points  */
-  /*                  `0' to `contours[0]', the second one is defined by   */
-  /*                  the points `contours[0]+1' to `contours[1]', etc.    */
-  /*                                                                       */
-  /*    flags      :: A set of bit flags used to characterize the outline  */
-  /*                  and give hints to the scan-converter and hinter on   */
-  /*                  how to convert/grid-fit it.  See @FT_OUTLINE_XXX.    */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The B/W rasterizer only checks bit~2 in the `tags' array for the   */
-  /*    first point of each contour.  The drop-out mode as given with      */
-  /*    @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and       */
-  /*    @FT_OUTLINE_INCLUDE_STUBS in `flags' is then overridden.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   outline_processing
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Outline
+   *
+   * @description:
+   *   This structure is used to describe an outline to the scan-line
+   *   converter.
+   *
+   * @fields:
+   *   n_contours ::
+   *     The number of contours in the outline.
+   *
+   *   n_points ::
+   *     The number of points in the outline.
+   *
+   *   points ::
+   *     A pointer to an array of `n_points` @FT_Vector elements, giving the
+   *     outline's point coordinates.
+   *
+   *   tags ::
+   *     A pointer to an array of `n_points` chars, giving each outline
+   *     point's type.
+   *
+   *     If bit~0 is unset, the point is 'off' the curve, i.e., a Bezier
+   *     control point, while it is 'on' if set.
+   *
+   *     Bit~1 is meaningful for 'off' points only.  If set, it indicates a
+   *     third-order Bezier arc control point; and a second-order control
+   *     point if unset.
+   *
+   *     If bit~2 is set, bits 5-7 contain the drop-out mode (as defined in
+   *     the OpenType specification; the value is the same as the argument to
+   *     the 'SCANMODE' instruction).
+   *
+   *     Bits 3 and~4 are reserved for internal purposes.
+   *
+   *   contours ::
+   *     An array of `n_contours` shorts, giving the end point of each
+   *     contour within the outline.  For example, the first contour is
+   *     defined by the points '0' to `contours[0]`, the second one is
+   *     defined by the points `contours[0]+1` to `contours[1]`, etc.
+   *
+   *   flags ::
+   *     A set of bit flags used to characterize the outline and give hints
+   *     to the scan-converter and hinter on how to convert/grid-fit it.  See
+   *     @FT_OUTLINE_XXX.
+   *
+   * @note:
+   *   The B/W rasterizer only checks bit~2 in the `tags` array for the first
+   *   point of each contour.  The drop-out mode as given with
+   *   @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and
+   *   @FT_OUTLINE_INCLUDE_STUBS in `flags` is then overridden.
+   */
   typedef struct  FT_Outline_
   {
     short       n_contours;      /* number of contours in glyph        */
@@ -352,78 +355,76 @@ FT_BEGIN_HEADER
 #define FT_OUTLINE_POINTS_MAX    SHRT_MAX
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_OUTLINE_XXX                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit-field constants use for the flags in an outline's    */
-  /*    `flags' field.                                                     */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_OUTLINE_NONE ::                                                 */
-  /*      Value~0 is reserved.                                             */
-  /*                                                                       */
-  /*    FT_OUTLINE_OWNER ::                                                */
-  /*      If set, this flag indicates that the outline's field arrays      */
-  /*      (i.e., `points', `flags', and `contours') are `owned' by the     */
-  /*      outline object, and should thus be freed when it is destroyed.   */
-  /*                                                                       */
-  /*    FT_OUTLINE_EVEN_ODD_FILL ::                                        */
-  /*      By default, outlines are filled using the non-zero winding rule. */
-  /*      If set to 1, the outline will be filled using the even-odd fill  */
-  /*      rule (only works with the smooth rasterizer).                    */
-  /*                                                                       */
-  /*    FT_OUTLINE_REVERSE_FILL ::                                         */
-  /*      By default, outside contours of an outline are oriented in       */
-  /*      clock-wise direction, as defined in the TrueType specification.  */
-  /*      This flag is set if the outline uses the opposite direction      */
-  /*      (typically for Type~1 fonts).  This flag is ignored by the scan  */
-  /*      converter.                                                       */
-  /*                                                                       */
-  /*    FT_OUTLINE_IGNORE_DROPOUTS ::                                      */
-  /*      By default, the scan converter will try to detect drop-outs in   */
-  /*      an outline and correct the glyph bitmap to ensure consistent     */
-  /*      shape continuity.  If set, this flag hints the scan-line         */
-  /*      converter to ignore such cases.  See below for more information. */
-  /*                                                                       */
-  /*    FT_OUTLINE_SMART_DROPOUTS ::                                       */
-  /*      Select smart dropout control.  If unset, use simple dropout      */
-  /*      control.  Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set.  See    */
-  /*      below for more information.                                      */
-  /*                                                                       */
-  /*    FT_OUTLINE_INCLUDE_STUBS ::                                        */
-  /*      If set, turn pixels on for `stubs', otherwise exclude them.      */
-  /*      Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set.  See below for    */
-  /*      more information.                                                */
-  /*                                                                       */
-  /*    FT_OUTLINE_HIGH_PRECISION ::                                       */
-  /*      This flag indicates that the scan-line converter should try to   */
-  /*      convert this outline to bitmaps with the highest possible        */
-  /*      quality.  It is typically set for small character sizes.  Note   */
-  /*      that this is only a hint that might be completely ignored by a   */
-  /*      given scan-converter.                                            */
-  /*                                                                       */
-  /*    FT_OUTLINE_SINGLE_PASS ::                                          */
-  /*      This flag is set to force a given scan-converter to only use a   */
-  /*      single pass over the outline to render a bitmap glyph image.     */
-  /*      Normally, it is set for very large character sizes.  It is only  */
-  /*      a hint that might be completely ignored by a given               */
-  /*      scan-converter.                                                  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, */
-  /*    and @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth            */
-  /*    rasterizer.                                                        */
-  /*                                                                       */
-  /*    There exists a second mechanism to pass the drop-out mode to the   */
-  /*    B/W rasterizer; see the `tags' field in @FT_Outline.               */
-  /*                                                                       */
-  /*    Please refer to the description of the `SCANTYPE' instruction in   */
-  /*    the OpenType specification (in file `ttinst1.doc') how simple      */
-  /*    drop-outs, smart drop-outs, and stubs are defined.                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_OUTLINE_XXX
+   *
+   * @description:
+   *   A list of bit-field constants used for the flags in an outline's
+   *   `flags` field.
+   *
+   * @values:
+   *   FT_OUTLINE_NONE ::
+   *     Value~0 is reserved.
+   *
+   *   FT_OUTLINE_OWNER ::
+   *     If set, this flag indicates that the outline's field arrays (i.e.,
+   *     `points`, `flags`, and `contours`) are 'owned' by the outline
+   *     object, and should thus be freed when it is destroyed.
+   *
+   *   FT_OUTLINE_EVEN_ODD_FILL ::
+   *     By default, outlines are filled using the non-zero winding rule.  If
+   *     set to 1, the outline will be filled using the even-odd fill rule
+   *     (only works with the smooth rasterizer).
+   *
+   *   FT_OUTLINE_REVERSE_FILL ::
+   *     By default, outside contours of an outline are oriented in
+   *     clock-wise direction, as defined in the TrueType specification.
+   *     This flag is set if the outline uses the opposite direction
+   *     (typically for Type~1 fonts).  This flag is ignored by the scan
+   *     converter.
+   *
+   *   FT_OUTLINE_IGNORE_DROPOUTS ::
+   *     By default, the scan converter will try to detect drop-outs in an
+   *     outline and correct the glyph bitmap to ensure consistent shape
+   *     continuity.  If set, this flag hints the scan-line converter to
+   *     ignore such cases.  See below for more information.
+   *
+   *   FT_OUTLINE_SMART_DROPOUTS ::
+   *     Select smart dropout control.  If unset, use simple dropout control.
+   *     Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set.  See below for more
+   *     information.
+   *
+   *   FT_OUTLINE_INCLUDE_STUBS ::
+   *     If set, turn pixels on for 'stubs', otherwise exclude them.  Ignored
+   *     if @FT_OUTLINE_IGNORE_DROPOUTS is set.  See below for more
+   *     information.
+   *
+   *   FT_OUTLINE_HIGH_PRECISION ::
+   *     This flag indicates that the scan-line converter should try to
+   *     convert this outline to bitmaps with the highest possible quality.
+   *     It is typically set for small character sizes.  Note that this is
+   *     only a hint that might be completely ignored by a given
+   *     scan-converter.
+   *
+   *   FT_OUTLINE_SINGLE_PASS ::
+   *     This flag is set to force a given scan-converter to only use a
+   *     single pass over the outline to render a bitmap glyph image.
+   *     Normally, it is set for very large character sizes.  It is only a
+   *     hint that might be completely ignored by a given scan-converter.
+   *
+   * @note:
+   *   The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and
+   *   @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth rasterizer.
+   *
+   *   There exists a second mechanism to pass the drop-out mode to the B/W
+   *   rasterizer; see the `tags` field in @FT_Outline.
+   *
+   *   Please refer to the description of the 'SCANTYPE' instruction in the
+   *   OpenType specification (in file `ttinst1.doc`) how simple drop-outs,
+   *   smart drop-outs, and stubs are defined.
+   */
 #define FT_OUTLINE_NONE             0x0
 #define FT_OUTLINE_OWNER            0x1
 #define FT_OUTLINE_EVEN_ODD_FILL    0x2
@@ -437,7 +438,7 @@ FT_BEGIN_HEADER
 
 
   /* these constants are deprecated; use the corresponding */
-  /* `FT_OUTLINE_XXX' values instead                       */
+  /* `FT_OUTLINE_XXX` values instead                       */
 #define ft_outline_none             FT_OUTLINE_NONE
 #define ft_outline_owner            FT_OUTLINE_OWNER
 #define ft_outline_even_odd_fill    FT_OUTLINE_EVEN_ODD_FILL
@@ -448,20 +449,25 @@ FT_BEGIN_HEADER
 
   /* */
 
-#define FT_CURVE_TAG( flag )  ( flag & 3 )
+#define FT_CURVE_TAG( flag )  ( flag & 0x03 )
 
-#define FT_CURVE_TAG_ON            1
-#define FT_CURVE_TAG_CONIC         0
-#define FT_CURVE_TAG_CUBIC         2
+  /* see the `tags` field in `FT_Outline` for a description of the values */
+#define FT_CURVE_TAG_ON            0x01
+#define FT_CURVE_TAG_CONIC         0x00
+#define FT_CURVE_TAG_CUBIC         0x02
 
-#define FT_CURVE_TAG_HAS_SCANMODE  4
+#define FT_CURVE_TAG_HAS_SCANMODE  0x04
 
-#define FT_CURVE_TAG_TOUCH_X       8  /* reserved for the TrueType hinter */
-#define FT_CURVE_TAG_TOUCH_Y      16  /* reserved for the TrueType hinter */
+#define FT_CURVE_TAG_TOUCH_X       0x08  /* reserved for TrueType hinter */
+#define FT_CURVE_TAG_TOUCH_Y       0x10  /* reserved for TrueType hinter */
 
 #define FT_CURVE_TAG_TOUCH_BOTH    ( FT_CURVE_TAG_TOUCH_X | \
                                      FT_CURVE_TAG_TOUCH_Y )
+  /* values 0x20, 0x40, and 0x80 are reserved */
+
 
+  /* these constants are deprecated; use the corresponding */
+  /* `FT_CURVE_TAG_XXX` values instead                     */
 #define FT_Curve_Tag_On       FT_CURVE_TAG_ON
 #define FT_Curve_Tag_Conic    FT_CURVE_TAG_CONIC
 #define FT_Curve_Tag_Cubic    FT_CURVE_TAG_CUBIC
@@ -469,26 +475,28 @@ FT_BEGIN_HEADER
 #define FT_Curve_Tag_Touch_Y  FT_CURVE_TAG_TOUCH_Y
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Outline_MoveToFunc                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function pointer type used to describe the signature of a `move  */
-  /*    to' function during outline walking/decomposition.                 */
-  /*                                                                       */
-  /*    A `move to' is emitted to start a new contour in an outline.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    to   :: A pointer to the target point of the `move to'.            */
-  /*                                                                       */
-  /*    user :: A typeless pointer, which is passed from the caller of the */
-  /*            decomposition function.                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0~means success.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Outline_MoveToFunc
+   *
+   * @description:
+   *   A function pointer type used to describe the signature of a 'move to'
+   *   function during outline walking/decomposition.
+   *
+   *   A 'move to' is emitted to start a new contour in an outline.
+   *
+   * @input:
+   *   to ::
+   *     A pointer to the target point of the 'move to'.
+   *
+   *   user ::
+   *     A typeless pointer, which is passed from the caller of the
+   *     decomposition function.
+   *
+   * @return:
+   *   Error code.  0~means success.
+   */
   typedef int
   (*FT_Outline_MoveToFunc)( const FT_Vector*  to,
                             void*             user );
@@ -496,26 +504,28 @@ FT_BEGIN_HEADER
 #define FT_Outline_MoveTo_Func  FT_Outline_MoveToFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Outline_LineToFunc                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function pointer type used to describe the signature of a `line  */
-  /*    to' function during outline walking/decomposition.                 */
-  /*                                                                       */
-  /*    A `line to' is emitted to indicate a segment in the outline.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    to   :: A pointer to the target point of the `line to'.            */
-  /*                                                                       */
-  /*    user :: A typeless pointer, which is passed from the caller of the */
-  /*            decomposition function.                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0~means success.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Outline_LineToFunc
+   *
+   * @description:
+   *   A function pointer type used to describe the signature of a 'line to'
+   *   function during outline walking/decomposition.
+   *
+   *   A 'line to' is emitted to indicate a segment in the outline.
+   *
+   * @input:
+   *   to ::
+   *     A pointer to the target point of the 'line to'.
+   *
+   *   user ::
+   *     A typeless pointer, which is passed from the caller of the
+   *     decomposition function.
+   *
+   * @return:
+   *   Error code.  0~means success.
+   */
   typedef int
   (*FT_Outline_LineToFunc)( const FT_Vector*  to,
                             void*             user );
@@ -523,30 +533,33 @@ FT_BEGIN_HEADER
 #define FT_Outline_LineTo_Func  FT_Outline_LineToFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Outline_ConicToFunc                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function pointer type used to describe the signature of a `conic */
-  /*    to' function during outline walking or decomposition.              */
-  /*                                                                       */
-  /*    A `conic to' is emitted to indicate a second-order Bezier arc in   */
-  /*    the outline.                                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    control :: An intermediate control point between the last position */
-  /*               and the new target in `to'.                             */
-  /*                                                                       */
-  /*    to      :: A pointer to the target end point of the conic arc.     */
-  /*                                                                       */
-  /*    user    :: A typeless pointer, which is passed from the caller of  */
-  /*               the decomposition function.                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0~means success.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Outline_ConicToFunc
+   *
+   * @description:
+   *   A function pointer type used to describe the signature of a 'conic to'
+   *   function during outline walking or decomposition.
+   *
+   *   A 'conic to' is emitted to indicate a second-order Bezier arc in the
+   *   outline.
+   *
+   * @input:
+   *   control ::
+   *     An intermediate control point between the last position and the new
+   *     target in `to`.
+   *
+   *   to ::
+   *     A pointer to the target end point of the conic arc.
+   *
+   *   user ::
+   *     A typeless pointer, which is passed from the caller of the
+   *     decomposition function.
+   *
+   * @return:
+   *   Error code.  0~means success.
+   */
   typedef int
   (*FT_Outline_ConicToFunc)( const FT_Vector*  control,
                              const FT_Vector*  to,
@@ -555,30 +568,34 @@ FT_BEGIN_HEADER
 #define FT_Outline_ConicTo_Func  FT_Outline_ConicToFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Outline_CubicToFunc                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function pointer type used to describe the signature of a `cubic */
-  /*    to' function during outline walking or decomposition.              */
-  /*                                                                       */
-  /*    A `cubic to' is emitted to indicate a third-order Bezier arc.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    control1 :: A pointer to the first Bezier control point.           */
-  /*                                                                       */
-  /*    control2 :: A pointer to the second Bezier control point.          */
-  /*                                                                       */
-  /*    to       :: A pointer to the target end point.                     */
-  /*                                                                       */
-  /*    user     :: A typeless pointer, which is passed from the caller of */
-  /*                the decomposition function.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0~means success.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Outline_CubicToFunc
+   *
+   * @description:
+   *   A function pointer type used to describe the signature of a 'cubic to'
+   *   function during outline walking or decomposition.
+   *
+   *   A 'cubic to' is emitted to indicate a third-order Bezier arc.
+   *
+   * @input:
+   *   control1 ::
+   *     A pointer to the first Bezier control point.
+   *
+   *   control2 ::
+   *     A pointer to the second Bezier control point.
+   *
+   *   to ::
+   *     A pointer to the target end point.
+   *
+   *   user ::
+   *     A typeless pointer, which is passed from the caller of the
+   *     decomposition function.
+   *
+   * @return:
+   *   Error code.  0~means success.
+   */
   typedef int
   (*FT_Outline_CubicToFunc)( const FT_Vector*  control1,
                              const FT_Vector*  control2,
@@ -588,43 +605,49 @@ FT_BEGIN_HEADER
 #define FT_Outline_CubicTo_Func  FT_Outline_CubicToFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Outline_Funcs                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to hold various function pointers used during outline  */
-  /*    decomposition in order to emit segments, conic, and cubic Beziers. */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    move_to  :: The `move to' emitter.                                 */
-  /*                                                                       */
-  /*    line_to  :: The segment emitter.                                   */
-  /*                                                                       */
-  /*    conic_to :: The second-order Bezier arc emitter.                   */
-  /*                                                                       */
-  /*    cubic_to :: The third-order Bezier arc emitter.                    */
-  /*                                                                       */
-  /*    shift    :: The shift that is applied to coordinates before they   */
-  /*                are sent to the emitter.                               */
-  /*                                                                       */
-  /*    delta    :: The delta that is applied to coordinates before they   */
-  /*                are sent to the emitter, but after the shift.          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The point coordinates sent to the emitters are the transformed     */
-  /*    version of the original coordinates (this is important for high    */
-  /*    accuracy during scan-conversion).  The transformation is simple:   */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      x' = (x << shift) - delta                                        */
-  /*      y' = (y << shift) - delta                                        */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Set the values of `shift' and `delta' to~0 to get the original     */
-  /*    point coordinates.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Outline_Funcs
+   *
+   * @description:
+   *   A structure to hold various function pointers used during outline
+   *   decomposition in order to emit segments, conic, and cubic Beziers.
+   *
+   * @fields:
+   *   move_to ::
+   *     The 'move to' emitter.
+   *
+   *   line_to ::
+   *     The segment emitter.
+   *
+   *   conic_to ::
+   *     The second-order Bezier arc emitter.
+   *
+   *   cubic_to ::
+   *     The third-order Bezier arc emitter.
+   *
+   *   shift ::
+   *     The shift that is applied to coordinates before they are sent to the
+   *     emitter.
+   *
+   *   delta ::
+   *     The delta that is applied to coordinates before they are sent to the
+   *     emitter, but after the shift.
+   *
+   * @note:
+   *   The point coordinates sent to the emitters are the transformed version
+   *   of the original coordinates (this is important for high accuracy
+   *   during scan-conversion).  The transformation is simple:
+   *
+   *   ```
+   *     x' = (x << shift) - delta
+   *     y' = (y << shift) - delta
+   *   ```
+   *
+   *   Set the values of `shift` and `delta` to~0 to get the original point
+   *   coordinates.
+   */
   typedef struct  FT_Outline_Funcs_
   {
     FT_Outline_MoveToFunc   move_to;
@@ -638,33 +661,32 @@ FT_BEGIN_HEADER
   } FT_Outline_Funcs;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    basic_types                                                        */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_IMAGE_TAG                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This macro converts four-letter tags to an unsigned long type.     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Since many 16-bit compilers don't like 32-bit enumerations, you    */
-  /*    should redefine this macro in case of problems to something like   */
-  /*    this:                                                              */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )  value         */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    to get a simple enumeration without assigning special numbers.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   basic_types
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_IMAGE_TAG
+   *
+   * @description:
+   *   This macro converts four-letter tags to an unsigned long type.
+   *
+   * @note:
+   *   Since many 16-bit compilers don't like 32-bit enumerations, you should
+   *   redefine this macro in case of problems to something like this:
+   *
+   *   ```
+   *     #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )  value
+   *   ```
+   *
+   *   to get a simple enumeration without assigning special numbers.
+   */
 #ifndef FT_IMAGE_TAG
 #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )  \
           value = ( ( (unsigned long)_x1 << 24 ) | \
@@ -674,44 +696,43 @@ FT_BEGIN_HEADER
 #endif /* FT_IMAGE_TAG */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Glyph_Format                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration type used to describe the format of a given glyph   */
-  /*    image.  Note that this version of FreeType only supports two image */
-  /*    formats, even though future font drivers will be able to register  */
-  /*    their own format.                                                  */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_GLYPH_FORMAT_NONE ::                                            */
-  /*      The value~0 is reserved.                                         */
-  /*                                                                       */
-  /*    FT_GLYPH_FORMAT_COMPOSITE ::                                       */
-  /*      The glyph image is a composite of several other images.  This    */
-  /*      format is _only_ used with @FT_LOAD_NO_RECURSE, and is used to   */
-  /*      report compound glyphs (like accented characters).               */
-  /*                                                                       */
-  /*    FT_GLYPH_FORMAT_BITMAP ::                                          */
-  /*      The glyph image is a bitmap, and can be described as an          */
-  /*      @FT_Bitmap.  You generally need to access the `bitmap' field of  */
-  /*      the @FT_GlyphSlotRec structure to read it.                       */
-  /*                                                                       */
-  /*    FT_GLYPH_FORMAT_OUTLINE ::                                         */
-  /*      The glyph image is a vectorial outline made of line segments     */
-  /*      and Bezier arcs; it can be described as an @FT_Outline; you      */
-  /*      generally want to access the `outline' field of the              */
-  /*      @FT_GlyphSlotRec structure to read it.                           */
-  /*                                                                       */
-  /*    FT_GLYPH_FORMAT_PLOTTER ::                                         */
-  /*      The glyph image is a vectorial path with no inside and outside   */
-  /*      contours.  Some Type~1 fonts, like those in the Hershey family,  */
-  /*      contain glyphs in this format.  These are described as           */
-  /*      @FT_Outline, but FreeType isn't currently capable of rendering   */
-  /*      them correctly.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Glyph_Format
+   *
+   * @description:
+   *   An enumeration type used to describe the format of a given glyph
+   *   image.  Note that this version of FreeType only supports two image
+   *   formats, even though future font drivers will be able to register
+   *   their own format.
+   *
+   * @values:
+   *   FT_GLYPH_FORMAT_NONE ::
+   *     The value~0 is reserved.
+   *
+   *   FT_GLYPH_FORMAT_COMPOSITE ::
+   *     The glyph image is a composite of several other images.  This format
+   *     is _only_ used with @FT_LOAD_NO_RECURSE, and is used to report
+   *     compound glyphs (like accented characters).
+   *
+   *   FT_GLYPH_FORMAT_BITMAP ::
+   *     The glyph image is a bitmap, and can be described as an @FT_Bitmap.
+   *     You generally need to access the `bitmap` field of the
+   *     @FT_GlyphSlotRec structure to read it.
+   *
+   *   FT_GLYPH_FORMAT_OUTLINE ::
+   *     The glyph image is a vectorial outline made of line segments and
+   *     Bezier arcs; it can be described as an @FT_Outline; you generally
+   *     want to access the `outline` field of the @FT_GlyphSlotRec structure
+   *     to read it.
+   *
+   *   FT_GLYPH_FORMAT_PLOTTER ::
+   *     The glyph image is a vectorial path with no inside and outside
+   *     contours.  Some Type~1 fonts, like those in the Hershey family,
+   *     contain glyphs in this format.  These are described as @FT_Outline,
+   *     but FreeType isn't currently capable of rendering them correctly.
+   */
   typedef enum  FT_Glyph_Format_
   {
     FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ),
@@ -725,7 +746,7 @@ FT_BEGIN_HEADER
 
 
   /* these constants are deprecated; use the corresponding */
-  /* `FT_Glyph_Format' values instead.                     */
+  /* `FT_Glyph_Format` values instead.                     */
 #define ft_glyph_format_none       FT_GLYPH_FORMAT_NONE
 #define ft_glyph_format_composite  FT_GLYPH_FORMAT_COMPOSITE
 #define ft_glyph_format_bitmap     FT_GLYPH_FORMAT_BITMAP
@@ -744,87 +765,89 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* A raster is a scan converter, in charge of rendering an outline into  */
-  /* a bitmap.  This section contains the public API for rasters.          */
-  /*                                                                       */
-  /* Note that in FreeType 2, all rasters are now encapsulated within      */
-  /* specific modules called `renderers'.  See `ftrender.h' for more       */
-  /* details on renderers.                                                 */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    raster                                                             */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Scanline Converter                                                 */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    How vectorial outlines are converted into bitmaps and pixmaps.     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains technical definitions.                       */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_Raster                                                          */
-  /*    FT_Span                                                            */
-  /*    FT_SpanFunc                                                        */
-  /*                                                                       */
-  /*    FT_Raster_Params                                                   */
-  /*    FT_RASTER_FLAG_XXX                                                 */
-  /*                                                                       */
-  /*    FT_Raster_NewFunc                                                  */
-  /*    FT_Raster_DoneFunc                                                 */
-  /*    FT_Raster_ResetFunc                                                */
-  /*    FT_Raster_SetModeFunc                                              */
-  /*    FT_Raster_RenderFunc                                               */
-  /*    FT_Raster_Funcs                                                    */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Raster                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An opaque handle (pointer) to a raster object.  Each object can be */
-  /*    used independently to convert an outline into a bitmap or pixmap.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * A raster is a scan converter, in charge of rendering an outline into a
+   * bitmap.  This section contains the public API for rasters.
+   *
+   * Note that in FreeType 2, all rasters are now encapsulated within
+   * specific modules called 'renderers'.  See `ftrender.h` for more details
+   * on renderers.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @section:
+   *   raster
+   *
+   * @title:
+   *   Scanline Converter
+   *
+   * @abstract:
+   *   How vectorial outlines are converted into bitmaps and pixmaps.
+   *
+   * @description:
+   *   This section contains technical definitions.
+   *
+   * @order:
+   *   FT_Raster
+   *   FT_Span
+   *   FT_SpanFunc
+   *
+   *   FT_Raster_Params
+   *   FT_RASTER_FLAG_XXX
+   *
+   *   FT_Raster_NewFunc
+   *   FT_Raster_DoneFunc
+   *   FT_Raster_ResetFunc
+   *   FT_Raster_SetModeFunc
+   *   FT_Raster_RenderFunc
+   *   FT_Raster_Funcs
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Raster
+   *
+   * @description:
+   *   An opaque handle (pointer) to a raster object.  Each object can be
+   *   used independently to convert an outline into a bitmap or pixmap.
+   */
   typedef struct FT_RasterRec_*  FT_Raster;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Span                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model a single span of gray pixels when        */
-  /*    rendering an anti-aliased bitmap.                                  */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    x        :: The span's horizontal start position.                  */
-  /*                                                                       */
-  /*    len      :: The span's length in pixels.                           */
-  /*                                                                       */
-  /*    coverage :: The span color/coverage, ranging from 0 (background)   */
-  /*                to 255 (foreground).                                   */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This structure is used by the span drawing callback type named     */
-  /*    @FT_SpanFunc that takes the y~coordinate of the span as a          */
-  /*    parameter.                                                         */
-  /*                                                                       */
-  /*    The coverage value is always between 0 and 255.  If you want less  */
-  /*    gray values, the callback function has to reduce them.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Span
+   *
+   * @description:
+   *   A structure used to model a single span of gray pixels when rendering
+   *   an anti-aliased bitmap.
+   *
+   * @fields:
+   *   x ::
+   *     The span's horizontal start position.
+   *
+   *   len ::
+   *     The span's length in pixels.
+   *
+   *   coverage ::
+   *     The span color/coverage, ranging from 0 (background) to 255
+   *     (foreground).
+   *
+   * @note:
+   *   This structure is used by the span drawing callback type named
+   *   @FT_SpanFunc that takes the y~coordinate of the span as a parameter.
+   *
+   *   The coverage value is always between 0 and 255.  If you want less gray
+   *   values, the callback function has to reduce them.
+   */
   typedef struct  FT_Span_
   {
     short           x;
@@ -834,32 +857,36 @@ FT_BEGIN_HEADER
   } FT_Span;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_SpanFunc                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used as a call-back by the anti-aliased renderer in     */
-  /*    order to let client applications draw themselves the gray pixel    */
-  /*    spans on each scan line.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    y     :: The scanline's y~coordinate.                              */
-  /*                                                                       */
-  /*    count :: The number of spans to draw on this scanline.             */
-  /*                                                                       */
-  /*    spans :: A table of `count' spans to draw on the scanline.         */
-  /*                                                                       */
-  /*    user  :: User-supplied data that is passed to the callback.        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This callback allows client applications to directly render the    */
-  /*    gray spans of the anti-aliased bitmap to any kind of surfaces.     */
-  /*                                                                       */
-  /*    This can be used to write anti-aliased outlines directly to a      */
-  /*    given background bitmap, and even perform translucency.            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_SpanFunc
+   *
+   * @description:
+   *   A function used as a call-back by the anti-aliased renderer in order
+   *   to let client applications draw themselves the gray pixel spans on
+   *   each scan line.
+   *
+   * @input:
+   *   y ::
+   *     The scanline's y~coordinate.
+   *
+   *   count ::
+   *     The number of spans to draw on this scanline.
+   *
+   *   spans ::
+   *     A table of `count` spans to draw on the scanline.
+   *
+   *   user ::
+   *     User-supplied data that is passed to the callback.
+   *
+   * @note:
+   *   This callback allows client applications to directly render the gray
+   *   spans of the anti-aliased bitmap to any kind of surfaces.
+   *
+   *   This can be used to write anti-aliased outlines directly to a given
+   *   background bitmap, and even perform translucency.
+   */
   typedef void
   (*FT_SpanFunc)( int             y,
                   int             count,
@@ -869,131 +896,131 @@ FT_BEGIN_HEADER
 #define FT_Raster_Span_Func  FT_SpanFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_BitTest_Func                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Deprecated, unimplemented.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_BitTest_Func
+   *
+   * @description:
+   *   Deprecated, unimplemented.
+   */
   typedef int
   (*FT_Raster_BitTest_Func)( int    y,
                              int    x,
                              void*  user );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_BitSet_Func                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Deprecated, unimplemented.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_BitSet_Func
+   *
+   * @description:
+   *   Deprecated, unimplemented.
+   */
   typedef void
   (*FT_Raster_BitSet_Func)( int    y,
                             int    x,
                             void*  user );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_RASTER_FLAG_XXX                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit flag constants as used in the `flags' field of a     */
-  /*    @FT_Raster_Params structure.                                       */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_RASTER_FLAG_DEFAULT :: This value is 0.                         */
-  /*                                                                       */
-  /*    FT_RASTER_FLAG_AA      :: This flag is set to indicate that an     */
-  /*                              anti-aliased glyph image should be       */
-  /*                              generated.  Otherwise, it will be        */
-  /*                              monochrome (1-bit).                      */
-  /*                                                                       */
-  /*    FT_RASTER_FLAG_DIRECT  :: This flag is set to indicate direct      */
-  /*                              rendering.  In this mode, client         */
-  /*                              applications must provide their own span */
-  /*                              callback.  This lets them directly       */
-  /*                              draw or compose over an existing bitmap. */
-  /*                              If this bit is not set, the target       */
-  /*                              pixmap's buffer _must_ be zeroed before  */
-  /*                              rendering.                               */
-  /*                                                                       */
-  /*                              Direct rendering is only possible with   */
-  /*                              anti-aliased glyphs.                     */
-  /*                                                                       */
-  /*    FT_RASTER_FLAG_CLIP    :: This flag is only used in direct         */
-  /*                              rendering mode.  If set, the output will */
-  /*                              be clipped to a box specified in the     */
-  /*                              `clip_box' field of the                  */
-  /*                              @FT_Raster_Params structure.             */
-  /*                                                                       */
-  /*                              Note that by default, the glyph bitmap   */
-  /*                              is clipped to the target pixmap, except  */
-  /*                              in direct rendering mode where all spans */
-  /*                              are generated if no clipping box is set. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_RASTER_FLAG_XXX
+   *
+   * @description:
+   *   A list of bit flag constants as used in the `flags` field of a
+   *   @FT_Raster_Params structure.
+   *
+   * @values:
+   *   FT_RASTER_FLAG_DEFAULT ::
+   *     This value is 0.
+   *
+   *   FT_RASTER_FLAG_AA ::
+   *     This flag is set to indicate that an anti-aliased glyph image should
+   *     be generated.  Otherwise, it will be monochrome (1-bit).
+   *
+   *   FT_RASTER_FLAG_DIRECT ::
+   *     This flag is set to indicate direct rendering.  In this mode, client
+   *     applications must provide their own span callback.  This lets them
+   *     directly draw or compose over an existing bitmap.  If this bit is
+   *     not set, the target pixmap's buffer _must_ be zeroed before
+   *     rendering.
+   *
+   *     Direct rendering is only possible with anti-aliased glyphs.
+   *
+   *   FT_RASTER_FLAG_CLIP ::
+   *     This flag is only used in direct rendering mode.  If set, the output
+   *     will be clipped to a box specified in the `clip_box` field of the
+   *     @FT_Raster_Params structure.
+   *
+   *     Note that by default, the glyph bitmap is clipped to the target
+   *     pixmap, except in direct rendering mode where all spans are
+   *     generated if no clipping box is set.
+   */
 #define FT_RASTER_FLAG_DEFAULT  0x0
 #define FT_RASTER_FLAG_AA       0x1
 #define FT_RASTER_FLAG_DIRECT   0x2
 #define FT_RASTER_FLAG_CLIP     0x4
 
   /* these constants are deprecated; use the corresponding */
-  /* `FT_RASTER_FLAG_XXX' values instead                   */
+  /* `FT_RASTER_FLAG_XXX` values instead                   */
 #define ft_raster_flag_default  FT_RASTER_FLAG_DEFAULT
 #define ft_raster_flag_aa       FT_RASTER_FLAG_AA
 #define ft_raster_flag_direct   FT_RASTER_FLAG_DIRECT
 #define ft_raster_flag_clip     FT_RASTER_FLAG_CLIP
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Raster_Params                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to hold the arguments used by a raster's render        */
-  /*    function.                                                          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    target      :: The target bitmap.                                  */
-  /*                                                                       */
-  /*    source      :: A pointer to the source glyph image (e.g., an       */
-  /*                   @FT_Outline).                                       */
-  /*                                                                       */
-  /*    flags       :: The rendering flags.                                */
-  /*                                                                       */
-  /*    gray_spans  :: The gray span drawing callback.                     */
-  /*                                                                       */
-  /*    black_spans :: Unused.                                             */
-  /*                                                                       */
-  /*    bit_test    :: Unused.                                             */
-  /*                                                                       */
-  /*    bit_set     :: Unused.                                             */
-  /*                                                                       */
-  /*    user        :: User-supplied data that is passed to each drawing   */
-  /*                   callback.                                           */
-  /*                                                                       */
-  /*    clip_box    :: An optional clipping box.  It is only used in       */
-  /*                   direct rendering mode.  Note that coordinates here  */
-  /*                   should be expressed in _integer_ pixels (and not in */
-  /*                   26.6 fixed-point units).                            */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA    */
-  /*    bit flag is set in the `flags' field, otherwise a monochrome       */
-  /*    bitmap is generated.                                               */
-  /*                                                                       */
-  /*    If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the      */
-  /*    raster will call the `gray_spans' callback to draw gray pixel      */
-  /*    spans.  This allows direct composition over a pre-existing bitmap  */
-  /*    through user-provided callbacks to perform the span drawing and    */
-  /*    composition.    Not supported by the monochrome rasterizer.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Raster_Params
+   *
+   * @description:
+   *   A structure to hold the arguments used by a raster's render function.
+   *
+   * @fields:
+   *   target ::
+   *     The target bitmap.
+   *
+   *   source ::
+   *     A pointer to the source glyph image (e.g., an @FT_Outline).
+   *
+   *   flags ::
+   *     The rendering flags.
+   *
+   *   gray_spans ::
+   *     The gray span drawing callback.
+   *
+   *   black_spans ::
+   *     Unused.
+   *
+   *   bit_test ::
+   *     Unused.
+   *
+   *   bit_set ::
+   *     Unused.
+   *
+   *   user ::
+   *     User-supplied data that is passed to each drawing callback.
+   *
+   *   clip_box ::
+   *     An optional clipping box.  It is only used in direct rendering mode.
+   *     Note that coordinates here should be expressed in _integer_ pixels
+   *     (and not in 26.6 fixed-point units).
+   *
+   * @note:
+   *   An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA bit
+   *   flag is set in the `flags` field, otherwise a monochrome bitmap is
+   *   generated.
+   *
+   *   If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags`, the raster
+   *   will call the `gray_spans` callback to draw gray pixel spans.  This
+   *   allows direct composition over a pre-existing bitmap through
+   *   user-provided callbacks to perform the span drawing and composition.
+   *   Not supported by the monochrome rasterizer.
+   */
   typedef struct  FT_Raster_Params_
   {
     const FT_Bitmap*        target;
@@ -1009,30 +1036,32 @@ FT_BEGIN_HEADER
   } FT_Raster_Params;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_NewFunc                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to create a new raster object.                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory :: A handle to the memory allocator.                        */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    raster :: A handle to the new raster object.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0~means success.                                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The `memory' parameter is a typeless pointer in order to avoid     */
-  /*    un-wanted dependencies on the rest of the FreeType code.  In       */
-  /*    practice, it is an @FT_Memory object, i.e., a handle to the        */
-  /*    standard FreeType memory allocator.  However, this field can be    */
-  /*    completely ignored by a given raster implementation.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_NewFunc
+   *
+   * @description:
+   *   A function used to create a new raster object.
+   *
+   * @input:
+   *   memory ::
+   *     A handle to the memory allocator.
+   *
+   * @output:
+   *   raster ::
+   *     A handle to the new raster object.
+   *
+   * @return:
+   *   Error code.  0~means success.
+   *
+   * @note:
+   *   The `memory` parameter is a typeless pointer in order to avoid
+   *   un-wanted dependencies on the rest of the FreeType code.  In practice,
+   *   it is an @FT_Memory object, i.e., a handle to the standard FreeType
+   *   memory allocator.  However, this field can be completely ignored by a
+   *   given raster implementation.
+   */
   typedef int
   (*FT_Raster_NewFunc)( void*       memory,
                         FT_Raster*  raster );
@@ -1040,49 +1069,52 @@ FT_BEGIN_HEADER
 #define FT_Raster_New_Func  FT_Raster_NewFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_DoneFunc                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to destroy a given raster object.                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    raster :: A handle to the raster object.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_DoneFunc
+   *
+   * @description:
+   *   A function used to destroy a given raster object.
+   *
+   * @input:
+   *   raster ::
+   *     A handle to the raster object.
+   */
   typedef void
   (*FT_Raster_DoneFunc)( FT_Raster  raster );
 
 #define FT_Raster_Done_Func  FT_Raster_DoneFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_ResetFunc                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FreeType used to provide an area of memory called the `render      */
-  /*    pool' available to all registered rasterizers.  This was not       */
-  /*    thread safe, however, and now FreeType never allocates this pool.  */
-  /*                                                                       */
-  /*    This function is called after a new raster object is created.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    raster    :: A handle to the new raster object.                    */
-  /*                                                                       */
-  /*    pool_base :: Previously, the address in memory of the render pool. */
-  /*                 Set this to NULL.                                     */
-  /*                                                                       */
-  /*    pool_size :: Previously, the size in bytes of the render pool.     */
-  /*                 Set this to 0.                                        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Rasterizers should rely on dynamic or stack allocation if they     */
-  /*    want to (a handle to the memory allocator is passed to the         */
-  /*    rasterizer constructor).                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_ResetFunc
+   *
+   * @description:
+   *   FreeType used to provide an area of memory called the 'render pool'
+   *   available to all registered rasterizers.  This was not thread safe,
+   *   however, and now FreeType never allocates this pool.
+   *
+   *   This function is called after a new raster object is created.
+   *
+   * @input:
+   *   raster ::
+   *     A handle to the new raster object.
+   *
+   *   pool_base ::
+   *     Previously, the address in memory of the render pool.  Set this to
+   *     `NULL`.
+   *
+   *   pool_size ::
+   *     Previously, the size in bytes of the render pool.  Set this to 0.
+   *
+   * @note:
+   *   Rasterizers should rely on dynamic or stack allocation if they want to
+   *   (a handle to the memory allocator is passed to the rasterizer
+   *   constructor).
+   */
   typedef void
   (*FT_Raster_ResetFunc)( FT_Raster       raster,
                           unsigned char*  pool_base,
@@ -1091,24 +1123,26 @@ FT_BEGIN_HEADER
 #define FT_Raster_Reset_Func  FT_Raster_ResetFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_SetModeFunc                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is a generic facility to change modes or attributes  */
-  /*    in a given raster.  This can be used for debugging purposes, or    */
-  /*    simply to allow implementation-specific `features' in a given      */
-  /*    raster module.                                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    raster :: A handle to the new raster object.                       */
-  /*                                                                       */
-  /*    mode   :: A 4-byte tag used to name the mode or property.          */
-  /*                                                                       */
-  /*    args   :: A pointer to the new mode/property to use.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_SetModeFunc
+   *
+   * @description:
+   *   This function is a generic facility to change modes or attributes in a
+   *   given raster.  This can be used for debugging purposes, or simply to
+   *   allow implementation-specific 'features' in a given raster module.
+   *
+   * @input:
+   *   raster ::
+   *     A handle to the new raster object.
+   *
+   *   mode ::
+   *     A 4-byte tag used to name the mode or property.
+   *
+   *   args ::
+   *     A pointer to the new mode/property to use.
+   */
   typedef int
   (*FT_Raster_SetModeFunc)( FT_Raster      raster,
                             unsigned long  mode,
@@ -1117,40 +1151,36 @@ FT_BEGIN_HEADER
 #define FT_Raster_Set_Mode_Func  FT_Raster_SetModeFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Raster_RenderFunc                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Invoke a given raster to scan-convert a given glyph image into a   */
-  /*    target bitmap.                                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    raster :: A handle to the raster object.                           */
-  /*                                                                       */
-  /*    params :: A pointer to an @FT_Raster_Params structure used to      */
-  /*              store the rendering parameters.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0~means success.                                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The exact format of the source image depends on the raster's glyph */
-  /*    format defined in its @FT_Raster_Funcs structure.  It can be an    */
-  /*    @FT_Outline or anything else in order to support a large array of  */
-  /*    glyph formats.                                                     */
-  /*                                                                       */
-  /*    Note also that the render function can fail and return a           */
-  /*    `FT_Err_Unimplemented_Feature' error code if the raster used does  */
-  /*    not support direct composition.                                    */
-  /*                                                                       */
-  /*    XXX: For now, the standard raster doesn't support direct           */
-  /*         composition but this should change for the final release (see */
-  /*         the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c'    */
-  /*         for examples of distinct implementations that support direct  */
-  /*         composition).                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Raster_RenderFunc
+   *
+   * @description:
+   *   Invoke a given raster to scan-convert a given glyph image into a
+   *   target bitmap.
+   *
+   * @input:
+   *   raster ::
+   *     A handle to the raster object.
+   *
+   *   params ::
+   *     A pointer to an @FT_Raster_Params structure used to store the
+   *     rendering parameters.
+   *
+   * @return:
+   *   Error code.  0~means success.
+   *
+   * @note:
+   *   The exact format of the source image depends on the raster's glyph
+   *   format defined in its @FT_Raster_Funcs structure.  It can be an
+   *   @FT_Outline or anything else in order to support a large array of
+   *   glyph formats.
+   *
+   *   Note also that the render function can fail and return a
+   *   `FT_Err_Unimplemented_Feature` error code if the raster used does not
+   *   support direct composition.
+   */
   typedef int
   (*FT_Raster_RenderFunc)( FT_Raster                raster,
                            const FT_Raster_Params*  params );
@@ -1158,25 +1188,30 @@ FT_BEGIN_HEADER
 #define FT_Raster_Render_Func  FT_Raster_RenderFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Raster_Funcs                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   A structure used to describe a given raster class to the library.   */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    glyph_format  :: The supported glyph format for this raster.       */
-  /*                                                                       */
-  /*    raster_new    :: The raster constructor.                           */
-  /*                                                                       */
-  /*    raster_reset  :: Used to reset the render pool within the raster.  */
-  /*                                                                       */
-  /*    raster_render :: A function to render a glyph into a given bitmap. */
-  /*                                                                       */
-  /*    raster_done   :: The raster destructor.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Raster_Funcs
+   *
+   * @description:
+   *  A structure used to describe a given raster class to the library.
+   *
+   * @fields:
+   *   glyph_format ::
+   *     The supported glyph format for this raster.
+   *
+   *   raster_new ::
+   *     The raster constructor.
+   *
+   *   raster_reset ::
+   *     Used to reset the render pool within the raster.
+   *
+   *   raster_render ::
+   *     A function to render a glyph into a given bitmap.
+   *
+   *   raster_done ::
+   *     The raster destructor.
+   */
   typedef struct  FT_Raster_Funcs_
   {
     FT_Glyph_Format        glyph_format;
diff --git a/thirdparty/freetype/include/freetype/ftincrem.h b/thirdparty/freetype/include/freetype/ftincrem.h
index 44619f941e..a4db02b585 100644
--- a/thirdparty/freetype/include/freetype/ftincrem.h
+++ b/thirdparty/freetype/include/freetype/ftincrem.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftincrem.h                                                             */
-/*                                                                         */
-/*    FreeType incremental loading (specification).                        */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftincrem.h
+ *
+ *   FreeType incremental loading (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTINCREM_H_
@@ -32,7 +32,7 @@
 
 FT_BEGIN_HEADER
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @section:
    *    incremental
@@ -45,7 +45,7 @@ FT_BEGIN_HEADER
    *
    * @description:
    *   This section contains various functions used to perform so-called
-   *   `incremental' glyph loading.  This is a mode where all glyphs loaded
+   *   'incremental' glyph loading.  This is a mode where all glyphs loaded
    *   from a given @FT_Face are provided by the client application.
    *
    *   Apart from that, all other tables are loaded normally from the font
@@ -60,23 +60,24 @@ FT_BEGIN_HEADER
    */
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Incremental
    *
    * @description:
    *   An opaque type describing a user-provided object used to implement
-   *   `incremental' glyph loading within FreeType.  This is used to support
-   *   embedded fonts in certain environments (e.g., PostScript interpreters),
-   *   where the glyph data isn't in the font file, or must be overridden by
-   *   different values.
+   *   'incremental' glyph loading within FreeType.  This is used to support
+   *   embedded fonts in certain environments (e.g., PostScript
+   *   interpreters), where the glyph data isn't in the font file, or must be
+   *   overridden by different values.
    *
    * @note:
-   *   It is up to client applications to create and implement @FT_Incremental
-   *   objects, as long as they provide implementations for the methods
-   *   @FT_Incremental_GetGlyphDataFunc, @FT_Incremental_FreeGlyphDataFunc
-   *   and @FT_Incremental_GetGlyphMetricsFunc.
+   *   It is up to client applications to create and implement
+   *   @FT_Incremental objects, as long as they provide implementations for
+   *   the methods @FT_Incremental_GetGlyphDataFunc,
+   *   @FT_Incremental_FreeGlyphDataFunc and
+   *   @FT_Incremental_GetGlyphMetricsFunc.
    *
    *   See the description of @FT_Incremental_InterfaceRec to understand how
    *   to use incremental objects with FreeType.
@@ -85,14 +86,14 @@ FT_BEGIN_HEADER
   typedef struct FT_IncrementalRec_*  FT_Incremental;
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FT_Incremental_MetricsRec
    *
    * @description:
-   *   A small structure used to contain the basic glyph metrics returned
-   *   by the @FT_Incremental_GetGlyphMetricsFunc method.
+   *   A small structure used to contain the basic glyph metrics returned by
+   *   the @FT_Incremental_GetGlyphMetricsFunc method.
    *
    * @fields:
    *   bearing_x ::
@@ -109,7 +110,7 @@ FT_BEGIN_HEADER
    *
    * @note:
    *   These correspond to horizontal or vertical metrics depending on the
-   *   value of the `vertical' argument to the function
+   *   value of the `vertical` argument to the function
    *   @FT_Incremental_GetGlyphMetricsFunc.
    *
    */
@@ -123,7 +124,7 @@ FT_BEGIN_HEADER
   } FT_Incremental_MetricsRec;
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FT_Incremental_Metrics
@@ -135,7 +136,7 @@ FT_BEGIN_HEADER
    typedef struct FT_Incremental_MetricsRec_*  FT_Incremental_Metrics;
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Incremental_GetGlyphDataFunc
@@ -147,8 +148,8 @@ FT_BEGIN_HEADER
    *
    *   Note that the format of the glyph's data bytes depends on the font
    *   file format.  For TrueType, it must correspond to the raw bytes within
-   *   the `glyf' table.  For PostScript formats, it must correspond to the
-   *   *unencrypted* charstring bytes, without any `lenIV' header.  It is
+   *   the 'glyf' table.  For PostScript formats, it must correspond to the
+   *   **unencrypted** charstring bytes, without any `lenIV` header.  It is
    *   undefined for any other format.
    *
    * @input:
@@ -169,8 +170,8 @@ FT_BEGIN_HEADER
    *
    * @note:
    *   If this function returns successfully the method
-   *   @FT_Incremental_FreeGlyphDataFunc will be called later to release
-   *   the data bytes.
+   *   @FT_Incremental_FreeGlyphDataFunc will be called later to release the
+   *   data bytes.
    *
    *   Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for
    *   compound glyphs.
@@ -182,7 +183,7 @@ FT_BEGIN_HEADER
                                       FT_Data*        adata );
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Incremental_FreeGlyphDataFunc
@@ -206,7 +207,7 @@ FT_BEGIN_HEADER
                                        FT_Data*        data );
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Incremental_GetGlyphMetricsFunc
@@ -214,8 +215,8 @@ FT_BEGIN_HEADER
    * @description:
    *   A function used to retrieve the basic metrics of a given glyph index
    *   before accessing its data.  This is necessary because, in certain
-   *   formats like TrueType, the metrics are stored in a different place from
-   *   the glyph images proper.
+   *   formats like TrueType, the metrics are stored in a different place
+   *   from the glyph images proper.
    *
    * @input:
    *   incremental ::
@@ -229,9 +230,9 @@ FT_BEGIN_HEADER
    *     If true, return vertical metrics.
    *
    *   ametrics ::
-   *     This parameter is used for both input and output.
-   *     The original glyph metrics, if any, in font units.  If metrics are
-   *     not available all the values must be set to zero.
+   *     This parameter is used for both input and output.  The original
+   *     glyph metrics, if any, in font units.  If metrics are not available
+   *     all the values must be set to zero.
    *
    * @output:
    *   ametrics ::
@@ -252,8 +253,8 @@ FT_BEGIN_HEADER
    *   FT_Incremental_FuncsRec
    *
    * @description:
-   *   A table of functions for accessing fonts that load data
-   *   incrementally.  Used in @FT_Incremental_InterfaceRec.
+   *   A table of functions for accessing fonts that load data incrementally.
+   *   Used in @FT_Incremental_InterfaceRec.
    *
    * @fields:
    *   get_glyph_data ::
@@ -263,8 +264,8 @@ FT_BEGIN_HEADER
    *     The function to release glyph data.  Must not be null.
    *
    *   get_glyph_metrics ::
-   *     The function to get glyph metrics.  May be null if the font does
-   *     not provide overriding glyph metrics.
+   *     The function to get glyph metrics.  May be null if the font does not
+   *     provide overriding glyph metrics.
    *
    */
   typedef struct  FT_Incremental_FuncsRec_
@@ -276,7 +277,7 @@ FT_BEGIN_HEADER
   } FT_Incremental_FuncsRec;
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FT_Incremental_InterfaceRec
@@ -286,30 +287,30 @@ FT_BEGIN_HEADER
    *   wants to support incremental glyph loading.  You should use it with
    *   @FT_PARAM_TAG_INCREMENTAL as in the following example:
    *
-   *     {
-   *       FT_Incremental_InterfaceRec  inc_int;
-   *       FT_Parameter                 parameter;
-   *       FT_Open_Args                 open_args;
+   *   ```
+   *     FT_Incremental_InterfaceRec  inc_int;
+   *     FT_Parameter                 parameter;
+   *     FT_Open_Args                 open_args;
    *
    *
-   *       // set up incremental descriptor
-   *       inc_int.funcs  = my_funcs;
-   *       inc_int.object = my_object;
+   *     // set up incremental descriptor
+   *     inc_int.funcs  = my_funcs;
+   *     inc_int.object = my_object;
    *
-   *       // set up optional parameter
-   *       parameter.tag  = FT_PARAM_TAG_INCREMENTAL;
-   *       parameter.data = &inc_int;
+   *     // set up optional parameter
+   *     parameter.tag  = FT_PARAM_TAG_INCREMENTAL;
+   *     parameter.data = &inc_int;
    *
-   *       // set up FT_Open_Args structure
-   *       open_args.flags      = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;
-   *       open_args.pathname   = my_font_pathname;
-   *       open_args.num_params = 1;
-   *       open_args.params     = &parameter; // we use one optional argument
+   *     // set up FT_Open_Args structure
+   *     open_args.flags      = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;
+   *     open_args.pathname   = my_font_pathname;
+   *     open_args.num_params = 1;
+   *     open_args.params     = &parameter; // we use one optional argument
    *
-   *       // open the font
-   *       error = FT_Open_Face( library, &open_args, index, &face );
-   *       ...
-   *     }
+   *     // open the font
+   *     error = FT_Open_Face( library, &open_args, index, &face );
+   *     ...
+   *   ```
    *
    */
   typedef struct  FT_Incremental_InterfaceRec_
@@ -320,7 +321,7 @@ FT_BEGIN_HEADER
   } FT_Incremental_InterfaceRec;
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Incremental_Interface
diff --git a/thirdparty/freetype/include/freetype/ftlcdfil.h b/thirdparty/freetype/include/freetype/ftlcdfil.h
index 2a27196cbb..3a19d043bb 100644
--- a/thirdparty/freetype/include/freetype/ftlcdfil.h
+++ b/thirdparty/freetype/include/freetype/ftlcdfil.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftlcdfil.h                                                             */
-/*                                                                         */
-/*    FreeType API for color filtering of subpixel bitmap glyphs           */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftlcdfil.h
+ *
+ *   FreeType API for color filtering of subpixel bitmap glyphs
+ *   (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTLCDFIL_H_
@@ -33,105 +33,98 @@
 
 FT_BEGIN_HEADER
 
-  /***************************************************************************
+  /**************************************************************************
    *
    * @section:
-   *   lcd_filtering
+   *   lcd_rendering
    *
    * @title:
-   *   LCD Filtering
+   *   Subpixel Rendering
    *
    * @abstract:
-   *   Reduce color fringes of subpixel-rendered bitmaps.
+   *   API to control subpixel rendering.
    *
    * @description:
-   *   Should you #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING in your
-   *   `ftoption.h', which enables patented ClearType-style rendering,
-   *   the LCD-optimized glyph bitmaps should be filtered to reduce color
-   *   fringes inherent to this technology.  The default FreeType LCD
-   *   rendering uses different technology, and API described below,
-   *   although available, does nothing.
+   *   FreeType provides two alternative subpixel rendering technologies. 
+   *   Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your
+   *   `ftoption.h` file, this enables patented ClearType-style rendering. 
+   *   Otherwise, Harmony LCD rendering is enabled.  These technologies are
+   *   controlled differently and API described below, although always
+   *   available, performs its function when appropriate method is enabled
+   *   and does nothing otherwise.
    *
    *   ClearType-style LCD rendering exploits the color-striped structure of
    *   LCD pixels, increasing the available resolution in the direction of
-   *   the stripe (usually horizontal RGB) by a factor of~3.  Since these
-   *   subpixels are color pixels, using them unfiltered creates severe
-   *   color fringes.  Use the @FT_Library_SetLcdFilter API to specify a
-   *   low-pass filter, which is then applied to subpixel-rendered bitmaps
-   *   generated through @FT_Render_Glyph.  The filter sacrifices some of
-   *   the higher resolution to reduce color fringes, making the glyph image
-   *   slightly blurrier.  Positional improvements will remain.
-   *
-   *   A filter should have two properties:
-   *
-   *   1) It should be normalized, meaning the sum of the 5~components
-   *      should be 256 (0x100).  It is possible to go above or under this
-   *      target sum, however: going under means tossing out contrast, going
-   *      over means invoking clamping and thereby non-linearities that
-   *      increase contrast somewhat at the expense of greater distortion
-   *      and color-fringing.  Contrast is better enhanced through stem
-   *      darkening.
-   *
-   *   2) It should be color-balanced, meaning a filter `{~a, b, c, b, a~}'
-   *      where a~+ b~=~c.  It distributes the computed coverage for one
-   *      subpixel to all subpixels equally, sacrificing some won resolution
-   *      but drastically reducing color-fringing.  Positioning improvements
-   *      remain!  Note that color-fringing can only really be minimized
-   *      when using a color-balanced filter and alpha-blending the glyph
-   *      onto a surface in linear space; see @FT_Render_Glyph.
-   *
-   *   Regarding the form, a filter can be a `boxy' filter or a `beveled'
-   *   filter.  Boxy filters are sharper but are less forgiving of non-ideal
-   *   gamma curves of a screen (viewing angles!), beveled filters are
-   *   fuzzier but more tolerant.
-   *
-   *   Examples:
-   *
-   *   - [0x10 0x40 0x70 0x40 0x10] is beveled and neither balanced nor
-   *     normalized.
-   *
-   *   - [0x1A 0x33 0x4D 0x33 0x1A] is beveled and balanced but not
-   *     normalized.
-   *
-   *   - [0x19 0x33 0x66 0x4c 0x19] is beveled and normalized but not
-   *     balanced.
-   *
-   *   - [0x00 0x4c 0x66 0x4c 0x00] is boxily beveled and normalized but not
-   *     balanced.
-   *
-   *   - [0x00 0x55 0x56 0x55 0x00] is boxy, normalized, and almost
-   *     balanced.
-   *
-   *   - [0x08 0x4D 0x56 0x4D 0x08] is beveled, normalized and, almost
-   *     balanced.
-   *
-   *   The filter affects glyph bitmaps rendered through @FT_Render_Glyph,
-   *   @FT_Load_Glyph, and @FT_Load_Char.  It does _not_ affect the output
-   *   of @FT_Outline_Render and @FT_Outline_Get_Bitmap.
-   *
-   *   If this feature is activated, the dimensions of LCD glyph bitmaps are
-   *   either wider or taller than the dimensions of the corresponding
-   *   outline with regard to the pixel grid.  For example, for
-   *   @FT_RENDER_MODE_LCD, the filter adds 3~subpixels to the left, and
-   *   3~subpixels to the right.  The bitmap offset values are adjusted
-   *   accordingly, so clients shouldn't need to modify their layout and
-   *   glyph positioning code when enabling the filter.
-   *
-   *   It is important to understand that linear alpha blending and gamma
-   *   correction is critical for correctly rendering glyphs onto surfaces
-   *   without artifacts and even more critical when subpixel rendering is
-   *   involved.
-   *
-   *   Each of the 3~alpha values (subpixels) is independently used to blend
-   *   one color channel.  That is, red alpha blends the red channel of the
-   *   text color with the red channel of the background pixel.  The
-   *   distribution of density values by the color-balanced filter assumes
-   *   alpha blending is done in linear space; only then color artifacts
-   *   cancel out.
+   *   the stripe (usually horizontal RGB) by a factor of~3.  Using the
+   *   subpixels coverages unfiltered can create severe color fringes
+   *   especially when rendering thin features.  Indeed, to produce
+   *   black-on-white text, the nearby color subpixels must be dimmed
+   *   equally.
+   *
+   *   A good 5-tap FIR filter should be applied to subpixel coverages
+   *   regardless of pixel boundaries and should have these properties:
+   *
+   *   1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid
+   *      any shifts in appearance.
+   *
+   *   2. It should be color-balanced, meaning a~+ b~=~c, to reduce color
+   *      fringes by distributing the computed coverage for one subpixel to
+   *      all subpixels equally.
+   *
+   *   3. It should be normalized, meaning 2a~+ 2b~+ c~=~1.0 to maintain
+   *      overall brightness.
+   *
+   *   Boxy 3-tap filter {0, 1/3, 1/3, 1/3, 0} is sharper but is less
+   *   forgiving of non-ideal gamma curves of a screen (and viewing angles),
+   *   beveled filters are fuzzier but more tolerant.
+   *
+   *   Use the @FT_Library_SetLcdFilter or @FT_Library_SetLcdFilterWeights
+   *   API to specify a low-pass filter, which is then applied to
+   *   subpixel-rendered bitmaps generated through @FT_Render_Glyph.
+   *
+   *   Harmony LCD rendering is suitable to panels with any regular subpixel
+   *   structure, not just monitors with 3 color striped subpixels, as long
+   *   as the color subpixels have fixed positions relative to the pixel
+   *   center.  In this case, each color channel is then rendered separately
+   *   after shifting the outline opposite to the subpixel shift so that the
+   *   coverage maps are aligned.  This method is immune to color fringes
+   *   because the shifts do not change integral coverage.
+   *
+   *   The subpixel geometry must be specified by xy-coordinates for each
+   *   subpixel. By convention they may come in the RGB order: {{-1/3, 0},
+   *   {0, 0}, {1/3, 0}} for standard RGB striped panel or {{-1/6, 1/4},
+   *   {-1/6, -1/4}, {1/3, 0}} for a certain PenTile panel.
+   *
+   *   Use the @FT_Library_SetLcdGeometry API to specify subpixel positions.
+   *   If one follows the RGB order convention, the same order applies to the
+   *   resulting @FT_PIXEL_MODE_LCD and @FT_PIXEL_MODE_LCD_V bitmaps.  Note,
+   *   however, that the coordinate frame for the latter must be rotated
+   *   clockwise.  Harmony with default LCD geometry is equivalent to
+   *   ClearType with light filter.
+   *
+   *   As a result of ClearType filtering or Harmony rendering, the
+   *   dimensions of LCD bitmaps can be either wider or taller than the
+   *   dimensions of the corresponding outline with regard to the pixel grid.
+   *   For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to
+   *   the left, and 2~subpixels to the right.  The bitmap offset values are
+   *   adjusted accordingly, so clients shouldn't need to modify their layout
+   *   and glyph positioning code when enabling the filter.
+   *
+   *   The ClearType and Harmony rendering is applicable to glyph bitmaps
+   *   rendered through @FT_Render_Glyph, @FT_Load_Glyph, @FT_Load_Char, and
+   *   @FT_Glyph_To_Bitmap, when @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V
+   *   is specified.  This API does not control @FT_Outline_Render and
+   *   @FT_Outline_Get_Bitmap.
+   *
+   *   The described algorithms can completely remove color artefacts when
+   *   combined with gamma-corrected alpha blending in linear space.  Each of
+   *   the 3~alpha values (subpixels) must by independently used to blend one
+   *   color channel.  That is, red alpha blends the red channel of the text
+   *   color with the red channel of the background pixel.
    */
 
 
-  /****************************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_LcdFilter
@@ -145,47 +138,25 @@ FT_BEGIN_HEADER
    *     results in sometimes severe color fringes.
    *
    *   FT_LCD_FILTER_DEFAULT ::
-   *     The default filter reduces color fringes considerably, at the cost
-   *     of a slight blurriness in the output.
-   *
-   *     It is a beveled, normalized, and color-balanced five-tap filter
-   *     that is more forgiving to screens with non-ideal gamma curves and
-   *     viewing angles.  Note that while color-fringing is reduced, it can
-   *     only be minimized by using linear alpha blending and gamma
-   *     correction to render glyphs onto surfaces.  The default filter
-   *     weights are [0x08 0x4D 0x56 0x4D 0x08].
+   *     This is a beveled, normalized, and color-balanced five-tap filter
+   *     with weights of [0x08 0x4D 0x56 0x4D 0x08] in 1/256th units.
    *
    *   FT_LCD_FILTER_LIGHT ::
-   *     The light filter is a variant that is sharper at the cost of
-   *     slightly more color fringes than the default one.
-   *
-   *     It is a boxy, normalized, and color-balanced three-tap filter that
-   *     is less forgiving to screens with non-ideal gamma curves and
-   *     viewing angles.  This filter works best when the rendering system
-   *     uses linear alpha blending and gamma correction to render glyphs
-   *     onto surfaces.  The light filter weights are
-   *     [0x00 0x55 0x56 0x55 0x00].
+   *     this is a boxy, normalized, and color-balanced three-tap filter with
+   *     weights of [0x00 0x55 0x56 0x55 0x00] in 1/256th units.
    *
    *   FT_LCD_FILTER_LEGACY ::
+   *   FT_LCD_FILTER_LEGACY1 ::
    *     This filter corresponds to the original libXft color filter.  It
    *     provides high contrast output but can exhibit really bad color
    *     fringes if glyphs are not extremely well hinted to the pixel grid.
-   *     In other words, it only works well if the TrueType bytecode
-   *     interpreter is enabled *and* high-quality hinted fonts are used.
-   *
    *     This filter is only provided for comparison purposes, and might be
-   *     disabled or stay unsupported in the future.
-   *
-   *   FT_LCD_FILTER_LEGACY1 ::
-   *     For historical reasons, the FontConfig library returns a different
-   *     enumeration value for legacy LCD filtering.  To make code work that
-   *     (incorrectly) forwards FontConfig's enumeration value to
-   *     @FT_Library_SetLcdFilter without proper mapping, it is thus easiest
-   *     to have another enumeration value, which is completely equal to
-   *     `FT_LCD_FILTER_LEGACY'.
+   *     disabled or stay unsupported in the future. The second value is
+   *     provided for compatibility with FontConfig, which historically used
+   *     different enumeration, sometimes incorrectly forwarded to FreeType.
    *
    * @since:
-   *   2.3.0 (`FT_LCD_FILTER_LEGACY1' since 2.6.2)
+   *   2.3.0 (`FT_LCD_FILTER_LEGACY1` since 2.6.2)
    */
   typedef enum  FT_LcdFilter_
   {
@@ -202,7 +173,7 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   * @func:
+   * @function:
    *   FT_Library_SetLcdFilter
    *
    * @description:
@@ -218,20 +189,20 @@ FT_BEGIN_HEADER
    *     The filter type.
    *
    *     You can use @FT_LCD_FILTER_NONE here to disable this feature, or
-   *     @FT_LCD_FILTER_DEFAULT to use a default filter that should work
-   *     well on most LCD screens.
+   *     @FT_LCD_FILTER_DEFAULT to use a default filter that should work well
+   *     on most LCD screens.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
    *   This feature is always disabled by default.  Clients must make an
-   *   explicit call to this function with a `filter' value other than
+   *   explicit call to this function with a `filter` value other than
    *   @FT_LCD_FILTER_NONE in order to enable it.
    *
-   *   Due to *PATENTS* covering subpixel rendering, this function doesn't
-   *   do anything except returning `FT_Err_Unimplemented_Feature' if the
-   *   configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not
+   *   Due to **PATENTS** covering subpixel rendering, this function doesn't
+   *   do anything except returning `FT_Err_Unimplemented_Feature` if the
+   *   configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is not
    *   defined in your build of the library, which should correspond to all
    *   default builds of FreeType.
    *
@@ -245,7 +216,7 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   * @func:
+   * @function:
    *   FT_Library_SetLcdFilterWeights
    *
    * @description:
@@ -258,15 +229,15 @@ FT_BEGIN_HEADER
    *
    *   weights ::
    *     A pointer to an array; the function copies the first five bytes and
-   *     uses them to specify the filter weights.
+   *     uses them to specify the filter weights in 1/256th units.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *   Due to *PATENTS* covering subpixel rendering, this function doesn't
-   *   do anything except returning `FT_Err_Unimplemented_Feature' if the
-   *   configuration macro FT_CONFIG_OPTION_SUBPIXEL_RENDERING is not
+   *   Due to **PATENTS** covering subpixel rendering, this function doesn't
+   *   do anything except returning `FT_Err_Unimplemented_Feature` if the
+   *   configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is not
    *   defined in your build of the library, which should correspond to all
    *   default builds of FreeType.
    *
@@ -281,7 +252,8 @@ FT_BEGIN_HEADER
                                   unsigned char  *weights );
 
 
-  /*
+  /**************************************************************************
+   *
    * @type:
    *   FT_LcdFiveTapFilter
    *
@@ -298,6 +270,53 @@ FT_BEGIN_HEADER
   typedef FT_Byte  FT_LcdFiveTapFilter[FT_LCD_FILTER_FIVE_TAPS];
 
 
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Library_SetLcdGeometry
+   *
+   * @description:
+   *   This function can be used to modify default positions of color
+   *   subpixels, which controls Harmony LCD rendering.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the target library instance.
+   *
+   *   sub ::
+   *     A pointer to an array of 3 vectors in 26.6 fractional pixel format;
+   *     the function modifies the default values, see the note below.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Subpixel geometry examples:
+   *
+   *   - {{-21, 0}, {0, 0}, {21, 0}} is the default, corresponding to 3 color
+   *   stripes shifted by a third of a pixel. This could be an RGB panel.
+   *
+   *   - {{21, 0}, {0, 0}, {-21, 0}} looks the same as the default but can
+   *   specify a BGR panel instead, while keeping the bitmap in the same
+   *   RGB888 format.
+   *
+   *   - {{0, 21}, {0, 0}, {0, -21}} is the vertical RGB, but the bitmap
+   *   stays RGB888 as a result.
+   *
+   *   - {{-11, 16}, {-11, -16}, {22, 0}} is a certain PenTile arrangement.
+   *
+   *   This function does nothing and returns `FT_Err_Unimplemented_Feature`
+   *   in the context of ClearType-style subpixel rendering when
+   *   `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is defined in your build of the
+   *   library.
+   *
+   * @since:
+   *   2.10.0
+   */
+  FT_EXPORT( FT_Error )
+  FT_Library_SetLcdGeometry( FT_Library  library,
+                             FT_Vector   sub[3] );
+
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/ftlist.h b/thirdparty/freetype/include/freetype/ftlist.h
index 117473b96a..4782892d1a 100644
--- a/thirdparty/freetype/include/freetype/ftlist.h
+++ b/thirdparty/freetype/include/freetype/ftlist.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftlist.h                                                               */
-/*                                                                         */
-/*    Generic list support for FreeType (specification).                   */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*  This file implements functions relative to list processing.  Its     */
-  /*  data structures are defined in `freetype.h'.                         */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftlist.h
+ *
+ *   Generic list support for FreeType (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file implements functions relative to list processing.  Its data
+   * structures are defined in `freetype.h`.
+   *
+   */
 
 
 #ifndef FTLIST_H_
@@ -41,224 +41,245 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    list_processing                                                    */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    List Processing                                                    */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Simple management of lists.                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains various definitions related to list          */
-  /*    processing using doubly-linked nodes.                              */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_List                                                            */
-  /*    FT_ListNode                                                        */
-  /*    FT_ListRec                                                         */
-  /*    FT_ListNodeRec                                                     */
-  /*                                                                       */
-  /*    FT_List_Add                                                        */
-  /*    FT_List_Insert                                                     */
-  /*    FT_List_Find                                                       */
-  /*    FT_List_Remove                                                     */
-  /*    FT_List_Up                                                         */
-  /*    FT_List_Iterate                                                    */
-  /*    FT_List_Iterator                                                   */
-  /*    FT_List_Finalize                                                   */
-  /*    FT_List_Destructor                                                 */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Find                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Find the list node for a given listed object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    list :: A pointer to the parent list.                              */
-  /*    data :: The address of the listed object.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    List node.  NULL if it wasn't found.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   list_processing
+   *
+   * @title:
+   *   List Processing
+   *
+   * @abstract:
+   *   Simple management of lists.
+   *
+   * @description:
+   *   This section contains various definitions related to list processing
+   *   using doubly-linked nodes.
+   *
+   * @order:
+   *   FT_List
+   *   FT_ListNode
+   *   FT_ListRec
+   *   FT_ListNodeRec
+   *
+   *   FT_List_Add
+   *   FT_List_Insert
+   *   FT_List_Find
+   *   FT_List_Remove
+   *   FT_List_Up
+   *   FT_List_Iterate
+   *   FT_List_Iterator
+   *   FT_List_Finalize
+   *   FT_List_Destructor
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Find
+   *
+   * @description:
+   *   Find the list node for a given listed object.
+   *
+   * @input:
+   *   list ::
+   *     A pointer to the parent list.
+   *   data ::
+   *     The address of the listed object.
+   *
+   * @return:
+   *   List node.  `NULL` if it wasn't found.
+   */
   FT_EXPORT( FT_ListNode )
   FT_List_Find( FT_List  list,
                 void*    data );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Add                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Append an element to the end of a list.                            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    list :: A pointer to the parent list.                              */
-  /*    node :: The node to append.                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Add
+   *
+   * @description:
+   *   Append an element to the end of a list.
+   *
+   * @inout:
+   *   list ::
+   *     A pointer to the parent list.
+   *   node ::
+   *     The node to append.
+   */
   FT_EXPORT( void )
   FT_List_Add( FT_List      list,
                FT_ListNode  node );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Insert                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Insert an element at the head of a list.                           */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    list :: A pointer to parent list.                                  */
-  /*    node :: The node to insert.                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Insert
+   *
+   * @description:
+   *   Insert an element at the head of a list.
+   *
+   * @inout:
+   *   list ::
+   *     A pointer to parent list.
+   *   node ::
+   *     The node to insert.
+   */
   FT_EXPORT( void )
   FT_List_Insert( FT_List      list,
                   FT_ListNode  node );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Remove                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Remove a node from a list.  This function doesn't check whether    */
-  /*    the node is in the list!                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    node :: The node to remove.                                        */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    list :: A pointer to the parent list.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Remove
+   *
+   * @description:
+   *   Remove a node from a list.  This function doesn't check whether the
+   *   node is in the list!
+   *
+   * @input:
+   *   node ::
+   *     The node to remove.
+   *
+   * @inout:
+   *   list ::
+   *     A pointer to the parent list.
+   */
   FT_EXPORT( void )
   FT_List_Remove( FT_List      list,
                   FT_ListNode  node );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Up                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Move a node to the head/top of a list.  Used to maintain LRU       */
-  /*    lists.                                                             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    list :: A pointer to the parent list.                              */
-  /*    node :: The node to move.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Up
+   *
+   * @description:
+   *   Move a node to the head/top of a list.  Used to maintain LRU lists.
+   *
+   * @inout:
+   *   list ::
+   *     A pointer to the parent list.
+   *   node ::
+   *     The node to move.
+   */
   FT_EXPORT( void )
   FT_List_Up( FT_List      list,
               FT_ListNode  node );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_List_Iterator                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An FT_List iterator function that is called during a list parse    */
-  /*    by @FT_List_Iterate.                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    node :: The current iteration list node.                           */
-  /*                                                                       */
-  /*    user :: A typeless pointer passed to @FT_List_Iterate.             */
-  /*            Can be used to point to the iteration's state.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_List_Iterator
+   *
+   * @description:
+   *   An FT_List iterator function that is called during a list parse by
+   *   @FT_List_Iterate.
+   *
+   * @input:
+   *   node ::
+   *     The current iteration list node.
+   *
+   *   user ::
+   *     A typeless pointer passed to @FT_List_Iterate.  Can be used to point
+   *     to the iteration's state.
+   */
   typedef FT_Error
   (*FT_List_Iterator)( FT_ListNode  node,
                        void*        user );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Iterate                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parse a list and calls a given iterator function on each element.  */
-  /*    Note that parsing is stopped as soon as one of the iterator calls  */
-  /*    returns a non-zero value.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    list     :: A handle to the list.                                  */
-  /*    iterator :: An iterator function, called on each node of the list. */
-  /*    user     :: A user-supplied field that is passed as the second     */
-  /*                argument to the iterator.                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The result (a FreeType error code) of the last iterator call.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Iterate
+   *
+   * @description:
+   *   Parse a list and calls a given iterator function on each element.
+   *   Note that parsing is stopped as soon as one of the iterator calls
+   *   returns a non-zero value.
+   *
+   * @input:
+   *   list ::
+   *     A handle to the list.
+   *   iterator ::
+   *     An iterator function, called on each node of the list.
+   *   user ::
+   *     A user-supplied field that is passed as the second argument to the
+   *     iterator.
+   *
+   * @return:
+   *   The result (a FreeType error code) of the last iterator call.
+   */
   FT_EXPORT( FT_Error )
   FT_List_Iterate( FT_List           list,
                    FT_List_Iterator  iterator,
                    void*             user );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_List_Destructor                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An @FT_List iterator function that is called during a list         */
-  /*    finalization by @FT_List_Finalize to destroy all elements in a     */
-  /*    given list.                                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    system :: The current system object.                               */
-  /*                                                                       */
-  /*    data   :: The current object to destroy.                           */
-  /*                                                                       */
-  /*    user   :: A typeless pointer passed to @FT_List_Iterate.  It can   */
-  /*              be used to point to the iteration's state.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_List_Destructor
+   *
+   * @description:
+   *   An @FT_List iterator function that is called during a list
+   *   finalization by @FT_List_Finalize to destroy all elements in a given
+   *   list.
+   *
+   * @input:
+   *   system ::
+   *     The current system object.
+   *
+   *   data ::
+   *     The current object to destroy.
+   *
+   *   user ::
+   *     A typeless pointer passed to @FT_List_Iterate.  It can be used to
+   *     point to the iteration's state.
+   */
   typedef void
   (*FT_List_Destructor)( FT_Memory  memory,
                          void*      data,
                          void*      user );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_List_Finalize                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroy all elements in the list as well as the list itself.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    list    :: A handle to the list.                                   */
-  /*                                                                       */
-  /*    destroy :: A list destructor that will be applied to each element  */
-  /*               of the list.  Set this to NULL if not needed.           */
-  /*                                                                       */
-  /*    memory  :: The current memory object that handles deallocation.    */
-  /*                                                                       */
-  /*    user    :: A user-supplied field that is passed as the last        */
-  /*               argument to the destructor.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function expects that all nodes added by @FT_List_Add or      */
-  /*    @FT_List_Insert have been dynamically allocated.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_List_Finalize
+   *
+   * @description:
+   *   Destroy all elements in the list as well as the list itself.
+   *
+   * @input:
+   *   list ::
+   *     A handle to the list.
+   *
+   *   destroy ::
+   *     A list destructor that will be applied to each element of the list.
+   *     Set this to `NULL` if not needed.
+   *
+   *   memory ::
+   *     The current memory object that handles deallocation.
+   *
+   *   user ::
+   *     A user-supplied field that is passed as the last argument to the
+   *     destructor.
+   *
+   * @note:
+   *   This function expects that all nodes added by @FT_List_Add or
+   *   @FT_List_Insert have been dynamically allocated.
+   */
   FT_EXPORT( void )
   FT_List_Finalize( FT_List             list,
                     FT_List_Destructor  destroy,
diff --git a/thirdparty/freetype/include/freetype/ftlzw.h b/thirdparty/freetype/include/freetype/ftlzw.h
index 1615912d62..fd22968f5a 100644
--- a/thirdparty/freetype/include/freetype/ftlzw.h
+++ b/thirdparty/freetype/include/freetype/ftlzw.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftlzw.h                                                                */
-/*                                                                         */
-/*    LZW-compressed stream support.                                       */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftlzw.h
+ *
+ *   LZW-compressed stream support.
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTLZW_H_
@@ -31,59 +31,60 @@
 
 FT_BEGIN_HEADER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    lzw                                                                */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    LZW Streams                                                        */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Using LZW-compressed font files.                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of LZW-specific functions.   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   lzw
+   *
+   * @title:
+   *   LZW Streams
+   *
+   * @abstract:
+   *   Using LZW-compressed font files.
+   *
+   * @description:
+   *   This section contains the declaration of LZW-specific functions.
+   *
+   */
 
- /************************************************************************
-  *
-  * @function:
-  *   FT_Stream_OpenLZW
-  *
-  * @description:
-  *   Open a new stream to parse LZW-compressed font files.  This is
-  *   mainly used to support the compressed `*.pcf.Z' fonts that come
-  *   with XFree86.
-  *
-  * @input:
-  *   stream :: The target embedding stream.
-  *
-  *   source :: The source stream.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   The source stream must be opened _before_ calling this function.
-  *
-  *   Calling the internal function `FT_Stream_Close' on the new stream will
-  *   *not* call `FT_Stream_Close' on the source stream.  None of the stream
-  *   objects will be released to the heap.
-  *
-  *   The stream implementation is very basic and resets the decompression
-  *   process each time seeking backwards is needed within the stream
-  *
-  *   In certain builds of the library, LZW compression recognition is
-  *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
-  *   This means that if no font driver is capable of handling the raw
-  *   compressed file, the library will try to open a LZW stream from it
-  *   and re-open the face with it.
-  *
-  *   This function may return `FT_Err_Unimplemented_Feature' if your build
-  *   of FreeType was not compiled with LZW support.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Stream_OpenLZW
+   *
+   * @description:
+   *   Open a new stream to parse LZW-compressed font files.  This is mainly
+   *   used to support the compressed `*.pcf.Z` fonts that come with XFree86.
+   *
+   * @input:
+   *   stream ::
+   *     The target embedding stream.
+   *
+   *   source ::
+   *     The source stream.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The source stream must be opened _before_ calling this function.
+   *
+   *   Calling the internal function `FT_Stream_Close` on the new stream will
+   *   **not** call `FT_Stream_Close` on the source stream.  None of the
+   *   stream objects will be released to the heap.
+   *
+   *   The stream implementation is very basic and resets the decompression
+   *   process each time seeking backwards is needed within the stream
+   *
+   *   In certain builds of the library, LZW compression recognition is
+   *   automatically handled when calling @FT_New_Face or @FT_Open_Face.
+   *   This means that if no font driver is capable of handling the raw
+   *   compressed file, the library will try to open a LZW stream from it and
+   *   re-open the face with it.
+   *
+   *   This function may return `FT_Err_Unimplemented_Feature` if your build
+   *   of FreeType was not compiled with LZW support.
+   */
   FT_EXPORT( FT_Error )
   FT_Stream_OpenLZW( FT_Stream  stream,
                      FT_Stream  source );
diff --git a/thirdparty/freetype/include/freetype/ftmac.h b/thirdparty/freetype/include/freetype/ftmac.h
index c1e497ca2d..92b9f3dc0f 100644
--- a/thirdparty/freetype/include/freetype/ftmac.h
+++ b/thirdparty/freetype/include/freetype/ftmac.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmac.h                                                                */
-/*                                                                         */
-/*    Additional Mac-specific API.                                         */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.     */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftmac.h
+ *
+ *   Additional Mac-specific API.
+ *
+ * Copyright (C) 1996-2019 by
+ * Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
-/***************************************************************************/
-/*                                                                         */
-/* NOTE: Include this file after FT_FREETYPE_H and after any               */
-/*       Mac-specific headers (because this header uses Mac types such as  */
-/*       Handle, FSSpec, FSRef, etc.)                                      */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * NOTE: Include this file after `FT_FREETYPE_H` and after any
+ *       Mac-specific headers (because this header uses Mac types such as
+ *       'Handle', 'FSSpec', 'FSRef', etc.)
+ *
+ */
 
 
 #ifndef FTMAC_H_
@@ -47,56 +47,59 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    mac_specific                                                       */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Mac Specific Interface                                             */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Only available on the Macintosh.                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The following definitions are only available if FreeType is        */
-  /*    compiled on a Macintosh.                                           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   mac_specific
+   *
+   * @title:
+   *   Mac Specific Interface
+   *
+   * @abstract:
+   *   Only available on the Macintosh.
+   *
+   * @description:
+   *   The following definitions are only available if FreeType is compiled
+   *   on a Macintosh.
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face_From_FOND                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new face object from a FOND resource.                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library resource.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    fond       :: A FOND resource.                                     */
-  /*                                                                       */
-  /*    face_index :: Only supported for the -1 `sanity check' special     */
-  /*                  case.                                                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aface      :: A handle to a new face object.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Notes>                                                               */
-  /*    This function can be used to create @FT_Face objects from fonts    */
-  /*    that are installed in the system as follows.                       */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      fond = GetResource( 'FOND', fontName );                          */
-  /*      error = FT_New_Face_From_FOND( library, fond, 0, &face );        */
-  /*    }                                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Face_From_FOND
+   *
+   * @description:
+   *   Create a new face object from a FOND resource.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library resource.
+   *
+   * @input:
+   *   fond ::
+   *     A FOND resource.
+   *
+   *   face_index ::
+   *     Only supported for the -1 'sanity check' special case.
+   *
+   * @output:
+   *   aface ::
+   *     A handle to a new face object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @example:
+   *   This function can be used to create @FT_Face objects from fonts that
+   *   are installed in the system as follows.
+   *
+   *   ```
+   *     fond  = GetResource( 'FOND', fontName );
+   *     error = FT_New_Face_From_FOND( library, fond, 0, &face );
+   *   ```
+   */
   FT_EXPORT( FT_Error )
   FT_New_Face_From_FOND( FT_Library  library,
                          Handle      fond,
@@ -105,28 +108,28 @@ FT_BEGIN_HEADER
                        FT_DEPRECATED_ATTRIBUTE;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_GetFile_From_Mac_Name                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return an FSSpec for the disk file containing the named font.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    fontName   :: Mac OS name of the font (e.g., Times New Roman       */
-  /*                  Bold).                                               */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    pathSpec   :: FSSpec to the file.  For passing to                  */
-  /*                  @FT_New_Face_From_FSSpec.                            */
-  /*                                                                       */
-  /*    face_index :: Index of the face.  For passing to                   */
-  /*                  @FT_New_Face_From_FSSpec.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_GetFile_From_Mac_Name
+   *
+   * @description:
+   *   Return an FSSpec for the disk file containing the named font.
+   *
+   * @input:
+   *   fontName ::
+   *     Mac OS name of the font (e.g., Times New Roman Bold).
+   *
+   * @output:
+   *   pathSpec ::
+   *     FSSpec to the file.  For passing to @FT_New_Face_From_FSSpec.
+   *
+   *   face_index ::
+   *     Index of the face.  For passing to @FT_New_Face_From_FSSpec.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_GetFile_From_Mac_Name( const char*  fontName,
                             FSSpec*      pathSpec,
@@ -134,27 +137,28 @@ FT_BEGIN_HEADER
                           FT_DEPRECATED_ATTRIBUTE;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_GetFile_From_Mac_ATS_Name                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return an FSSpec for the disk file containing the named font.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    fontName   :: Mac OS name of the font in ATS framework.            */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    pathSpec   :: FSSpec to the file. For passing to                   */
-  /*                  @FT_New_Face_From_FSSpec.                            */
-  /*                                                                       */
-  /*    face_index :: Index of the face. For passing to                    */
-  /*                  @FT_New_Face_From_FSSpec.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_GetFile_From_Mac_ATS_Name
+   *
+   * @description:
+   *   Return an FSSpec for the disk file containing the named font.
+   *
+   * @input:
+   *   fontName ::
+   *     Mac OS name of the font in ATS framework.
+   *
+   * @output:
+   *   pathSpec ::
+   *     FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
+   *
+   *   face_index ::
+   *     Index of the face. For passing to @FT_New_Face_From_FSSpec.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_GetFile_From_Mac_ATS_Name( const char*  fontName,
                                 FSSpec*      pathSpec,
@@ -162,30 +166,33 @@ FT_BEGIN_HEADER
                               FT_DEPRECATED_ATTRIBUTE;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_GetFilePath_From_Mac_ATS_Name                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return a pathname of the disk file and face index for given font   */
-  /*    name that is handled by ATS framework.                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    fontName    :: Mac OS name of the font in ATS framework.           */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    path        :: Buffer to store pathname of the file.  For passing  */
-  /*                   to @FT_New_Face.  The client must allocate this     */
-  /*                   buffer before calling this function.                */
-  /*                                                                       */
-  /*    maxPathSize :: Lengths of the buffer `path' that client allocated. */
-  /*                                                                       */
-  /*    face_index  :: Index of the face.  For passing to @FT_New_Face.    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_GetFilePath_From_Mac_ATS_Name
+   *
+   * @description:
+   *   Return a pathname of the disk file and face index for given font name
+   *   that is handled by ATS framework.
+   *
+   * @input:
+   *   fontName ::
+   *     Mac OS name of the font in ATS framework.
+   *
+   * @output:
+   *   path ::
+   *     Buffer to store pathname of the file.  For passing to @FT_New_Face.
+   *     The client must allocate this buffer before calling this function.
+   *
+   *   maxPathSize ::
+   *     Lengths of the buffer `path` that client allocated.
+   *
+   *   face_index ::
+   *     Index of the face.  For passing to @FT_New_Face.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_GetFilePath_From_Mac_ATS_Name( const char*  fontName,
                                     UInt8*       path,
@@ -194,33 +201,37 @@ FT_BEGIN_HEADER
                                   FT_DEPRECATED_ATTRIBUTE;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face_From_FSSpec                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new face object from a given resource and typeface index  */
-  /*    using an FSSpec to the font file.                                  */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library resource.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    spec       :: FSSpec to the font file.                             */
-  /*                                                                       */
-  /*    face_index :: The index of the face within the resource.  The      */
-  /*                  first face has index~0.                              */
-  /* <Output>                                                              */
-  /*    aface      :: A handle to a new face object.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    @FT_New_Face_From_FSSpec is identical to @FT_New_Face except       */
-  /*    it accepts an FSSpec instead of a path.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Face_From_FSSpec
+   *
+   * @description:
+   *   Create a new face object from a given resource and typeface index
+   *   using an FSSpec to the font file.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library resource.
+   *
+   * @input:
+   *   spec ::
+   *     FSSpec to the font file.
+   *
+   *   face_index ::
+   *     The index of the face within the resource.  The first face has
+   *     index~0.
+   * @output:
+   *   aface ::
+   *     A handle to a new face object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   @FT_New_Face_From_FSSpec is identical to @FT_New_Face except it
+   *   accepts an FSSpec instead of a path.
+   */
   FT_EXPORT( FT_Error )
   FT_New_Face_From_FSSpec( FT_Library     library,
                            const FSSpec  *spec,
@@ -229,33 +240,37 @@ FT_BEGIN_HEADER
                          FT_DEPRECATED_ATTRIBUTE;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face_From_FSRef                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new face object from a given resource and typeface index  */
-  /*    using an FSRef to the font file.                                   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library resource.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    spec       :: FSRef to the font file.                              */
-  /*                                                                       */
-  /*    face_index :: The index of the face within the resource.  The      */
-  /*                  first face has index~0.                              */
-  /* <Output>                                                              */
-  /*    aface      :: A handle to a new face object.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    @FT_New_Face_From_FSRef is identical to @FT_New_Face except        */
-  /*    it accepts an FSRef instead of a path.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Face_From_FSRef
+   *
+   * @description:
+   *   Create a new face object from a given resource and typeface index
+   *   using an FSRef to the font file.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library resource.
+   *
+   * @input:
+   *   spec ::
+   *     FSRef to the font file.
+   *
+   *   face_index ::
+   *     The index of the face within the resource.  The first face has
+   *     index~0.
+   * @output:
+   *   aface ::
+   *     A handle to a new face object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   @FT_New_Face_From_FSRef is identical to @FT_New_Face except it accepts
+   *   an FSRef instead of a path.
+   */
   FT_EXPORT( FT_Error )
   FT_New_Face_From_FSRef( FT_Library    library,
                           const FSRef  *ref,
diff --git a/thirdparty/freetype/include/freetype/ftmm.h b/thirdparty/freetype/include/freetype/ftmm.h
index 9948102c14..f2e16b6408 100644
--- a/thirdparty/freetype/include/freetype/ftmm.h
+++ b/thirdparty/freetype/include/freetype/ftmm.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmm.h                                                                 */
-/*                                                                         */
-/*    FreeType Multiple Master font interface (specification).             */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftmm.h
+ *
+ *   FreeType Multiple Master font interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTMM_H_
@@ -27,49 +27,52 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    multiple_masters                                                   */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Multiple Masters                                                   */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    How to manage Multiple Masters fonts.                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The following types and functions are used to manage Multiple      */
-  /*    Master fonts, i.e., the selection of specific design instances by  */
-  /*    setting design axis coordinates.                                   */
-  /*                                                                       */
-  /*    Besides Adobe MM fonts, the interface supports Apple's TrueType GX */
-  /*    and OpenType variation fonts.  Some of the routines only work with */
-  /*    Adobe MM fonts, others will work with all three types.  They are   */
-  /*    similar enough that a consistent interface makes sense.            */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_MM_Axis                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a given axis in design space for Multiple     */
-  /*    Masters fonts.                                                     */
-  /*                                                                       */
-  /*    This structure can't be used for TrueType GX or OpenType variation */
-  /*    fonts.                                                             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    name    :: The axis's name.                                        */
-  /*                                                                       */
-  /*    minimum :: The axis's minimum design coordinate.                   */
-  /*                                                                       */
-  /*    maximum :: The axis's maximum design coordinate.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   multiple_masters
+   *
+   * @title:
+   *   Multiple Masters
+   *
+   * @abstract:
+   *   How to manage Multiple Masters fonts.
+   *
+   * @description:
+   *   The following types and functions are used to manage Multiple Master
+   *   fonts, i.e., the selection of specific design instances by setting
+   *   design axis coordinates.
+   *
+   *   Besides Adobe MM fonts, the interface supports Apple's TrueType GX and
+   *   OpenType variation fonts.  Some of the routines only work with Adobe
+   *   MM fonts, others will work with all three types.  They are similar
+   *   enough that a consistent interface makes sense.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_MM_Axis
+   *
+   * @description:
+   *   A structure to model a given axis in design space for Multiple Masters
+   *   fonts.
+   *
+   *   This structure can't be used for TrueType GX or OpenType variation
+   *   fonts.
+   *
+   * @fields:
+   *   name ::
+   *     The axis's name.
+   *
+   *   minimum ::
+   *     The axis's minimum design coordinate.
+   *
+   *   maximum ::
+   *     The axis's maximum design coordinate.
+   */
   typedef struct  FT_MM_Axis_
   {
     FT_String*  name;
@@ -79,28 +82,29 @@ FT_BEGIN_HEADER
   } FT_MM_Axis;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Multi_Master                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model the axes and space of a Multiple Masters      */
-  /*    font.                                                              */
-  /*                                                                       */
-  /*    This structure can't be used for TrueType GX or OpenType variation */
-  /*    fonts.                                                             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_axis    :: Number of axes.  Cannot exceed~4.                   */
-  /*                                                                       */
-  /*    num_designs :: Number of designs; should be normally 2^num_axis    */
-  /*                   even though the Type~1 specification strangely      */
-  /*                   allows for intermediate designs to be present.      */
-  /*                   This number cannot exceed~16.                       */
-  /*                                                                       */
-  /*    axis        :: A table of axis descriptors.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Multi_Master
+   *
+   * @description:
+   *   A structure to model the axes and space of a Multiple Masters font.
+   *
+   *   This structure can't be used for TrueType GX or OpenType variation
+   *   fonts.
+   *
+   * @fields:
+   *   num_axis ::
+   *     Number of axes.  Cannot exceed~4.
+   *
+   *   num_designs ::
+   *     Number of designs; should be normally 2^num_axis even though the
+   *     Type~1 specification strangely allows for intermediate designs to be
+   *     present.  This number cannot exceed~16.
+   *
+   *   axis ::
+   *     A table of axis descriptors.
+   */
   typedef struct  FT_Multi_Master_
   {
     FT_UInt     num_axis;
@@ -110,42 +114,45 @@ FT_BEGIN_HEADER
   } FT_Multi_Master;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Var_Axis                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a given axis in design space for Multiple     */
-  /*    Masters, TrueType GX, and OpenType variation fonts.                */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    name    :: The axis's name.                                        */
-  /*               Not always meaningful for TrueType GX or OpenType       */
-  /*               variation fonts.                                        */
-  /*                                                                       */
-  /*    minimum :: The axis's minimum design coordinate.                   */
-  /*                                                                       */
-  /*    def     :: The axis's default design coordinate.                   */
-  /*               FreeType computes meaningful default values for Adobe   */
-  /*               MM fonts.                                               */
-  /*                                                                       */
-  /*    maximum :: The axis's maximum design coordinate.                   */
-  /*                                                                       */
-  /*    tag     :: The axis's tag (the equivalent to `name' for TrueType   */
-  /*               GX and OpenType variation fonts).  FreeType provides    */
-  /*               default values for Adobe MM fonts if possible.          */
-  /*                                                                       */
-  /*    strid   :: The axis name entry in the font's `name' table.  This   */
-  /*               is another (and often better) version of the `name'     */
-  /*               field for TrueType GX or OpenType variation fonts.  Not */
-  /*               meaningful for Adobe MM fonts.                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The fields `minimum', `def', and `maximum' are 16.16 fractional    */
-  /*    values for TrueType GX and OpenType variation fonts.  For Adobe MM */
-  /*    fonts, the values are integers.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Var_Axis
+   *
+   * @description:
+   *   A structure to model a given axis in design space for Multiple
+   *   Masters, TrueType GX, and OpenType variation fonts.
+   *
+   * @fields:
+   *   name ::
+   *     The axis's name.  Not always meaningful for TrueType GX or OpenType
+   *     variation fonts.
+   *
+   *   minimum ::
+   *     The axis's minimum design coordinate.
+   *
+   *   def ::
+   *     The axis's default design coordinate.  FreeType computes meaningful
+   *     default values for Adobe MM fonts.
+   *
+   *   maximum ::
+   *     The axis's maximum design coordinate.
+   *
+   *   tag ::
+   *     The axis's tag (the equivalent to 'name' for TrueType GX and
+   *     OpenType variation fonts).  FreeType provides default values for
+   *     Adobe MM fonts if possible.
+   *
+   *   strid ::
+   *     The axis name entry in the font's 'name' table.  This is another
+   *     (and often better) version of the 'name' field for TrueType GX or
+   *     OpenType variation fonts.  Not meaningful for Adobe MM fonts.
+   *
+   * @note:
+   *   The fields `minimum`, `def`, and `maximum` are 16.16 fractional values
+   *   for TrueType GX and OpenType variation fonts.  For Adobe MM fonts, the
+   *   values are integers.
+   */
   typedef struct  FT_Var_Axis_
   {
     FT_String*  name;
@@ -160,27 +167,29 @@ FT_BEGIN_HEADER
   } FT_Var_Axis;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Var_Named_Style                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a named instance in a TrueType GX or OpenType */
-  /*    variation font.                                                    */
-  /*                                                                       */
-  /*    This structure can't be used for Adobe MM fonts.                   */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    coords :: The design coordinates for this instance.                */
-  /*              This is an array with one entry for each axis.           */
-  /*                                                                       */
-  /*    strid  :: The entry in `name' table identifying this instance.     */
-  /*                                                                       */
-  /*    psid   :: The entry in `name' table identifying a PostScript name  */
-  /*              for this instance.  Value 0xFFFF indicates a missing     */
-  /*              entry.                                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Var_Named_Style
+   *
+   * @description:
+   *   A structure to model a named instance in a TrueType GX or OpenType
+   *   variation font.
+   *
+   *   This structure can't be used for Adobe MM fonts.
+   *
+   * @fields:
+   *   coords ::
+   *     The design coordinates for this instance.  This is an array with one
+   *     entry for each axis.
+   *
+   *   strid ::
+   *     The entry in 'name' table identifying this instance.
+   *
+   *   psid ::
+   *     The entry in 'name' table identifying a PostScript name for this
+   *     instance.  Value 0xFFFF indicates a missing entry.
+   */
   typedef struct  FT_Var_Named_Style_
   {
     FT_Fixed*  coords;
@@ -190,50 +199,47 @@ FT_BEGIN_HEADER
   } FT_Var_Named_Style;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_MM_Var                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model the axes and space of an Adobe MM, TrueType   */
-  /*    GX, or OpenType variation font.                                    */
-  /*                                                                       */
-  /*    Some fields are specific to one format and not to the others.      */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_axis        :: The number of axes.  The maximum value is~4 for */
-  /*                       Adobe MM fonts; no limit in TrueType GX or      */
-  /*                       OpenType variation fonts.                       */
-  /*                                                                       */
-  /*    num_designs     :: The number of designs; should be normally       */
-  /*                       2^num_axis for Adobe MM fonts.  Not meaningful  */
-  /*                       for TrueType GX or OpenType variation fonts     */
-  /*                       (where every glyph could have a different       */
-  /*                       number of designs).                             */
-  /*                                                                       */
-  /*    num_namedstyles :: The number of named styles; a `named style' is  */
-  /*                       a tuple of design coordinates that has a string */
-  /*                       ID (in the `name' table) associated with it.    */
-  /*                       The font can tell the user that, for example,   */
-  /*                       [Weight=1.5,Width=1.1] is `Bold'.  Another name */
-  /*                       for `named style' is `named instance'.          */
-  /*                                                                       */
-  /*                       For Adobe Multiple Masters fonts, this value is */
-  /*                       always zero because the format does not support */
-  /*                       named styles.                                   */
-  /*                                                                       */
-  /*    axis            :: An axis descriptor table.                       */
-  /*                       TrueType GX and OpenType variation fonts        */
-  /*                       contain slightly more data than Adobe MM fonts. */
-  /*                       Memory management of this pointer is done       */
-  /*                       internally by FreeType.                         */
-  /*                                                                       */
-  /*    namedstyle      :: A named style (instance) table.                 */
-  /*                       Only meaningful for TrueType GX and OpenType    */
-  /*                       variation fonts.  Memory management of this     */
-  /*                       pointer is done internally by FreeType.         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_MM_Var
+   *
+   * @description:
+   *   A structure to model the axes and space of an Adobe MM, TrueType GX,
+   *   or OpenType variation font.
+   *
+   *   Some fields are specific to one format and not to the others.
+   *
+   * @fields:
+   *   num_axis ::
+   *     The number of axes.  The maximum value is~4 for Adobe MM fonts; no
+   *     limit in TrueType GX or OpenType variation fonts.
+   *
+   *   num_designs ::
+   *     The number of designs; should be normally 2^num_axis for Adobe MM
+   *     fonts.  Not meaningful for TrueType GX or OpenType variation fonts
+   *     (where every glyph could have a different number of designs).
+   *
+   *   num_namedstyles ::
+   *     The number of named styles; a 'named style' is a tuple of design
+   *     coordinates that has a string ID (in the 'name' table) associated
+   *     with it.  The font can tell the user that, for example,
+   *     [Weight=1.5,Width=1.1] is 'Bold'.  Another name for 'named style' is
+   *     'named instance'.
+   *
+   *     For Adobe Multiple Masters fonts, this value is always zero because
+   *     the format does not support named styles.
+   *
+   *   axis ::
+   *     An axis descriptor table.  TrueType GX and OpenType variation fonts
+   *     contain slightly more data than Adobe MM fonts.  Memory management
+   *     of this pointer is done internally by FreeType.
+   *
+   *   namedstyle ::
+   *     A named style (instance) table.  Only meaningful for TrueType GX and
+   *     OpenType variation fonts.  Memory management of this pointer is done
+   *     internally by FreeType.
+   */
   typedef struct  FT_MM_Var_
   {
     FT_UInt              num_axis;
@@ -245,384 +251,493 @@ FT_BEGIN_HEADER
   } FT_MM_Var;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Multi_Master                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve a variation descriptor of a given Adobe MM font.          */
-  /*                                                                       */
-  /*    This function can't be used with TrueType GX or OpenType variation */
-  /*    fonts.                                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face    :: A handle to the source face.                            */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    amaster :: The Multiple Masters descriptor.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Multi_Master
+   *
+   * @description:
+   *   Retrieve a variation descriptor of a given Adobe MM font.
+   *
+   *   This function can't be used with TrueType GX or OpenType variation
+   *   fonts.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @output:
+   *   amaster ::
+   *     The Multiple Masters descriptor.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Multi_Master( FT_Face           face,
                        FT_Multi_Master  *amaster );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_MM_Var                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve a variation descriptor for a given font.                  */
-  /*                                                                       */
-  /*    This function works with all supported variation formats.          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face    :: A handle to the source face.                            */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    amaster :: The variation descriptor.                               */
-  /*               Allocates a data structure, which the user must         */
-  /*               deallocate with a call to @FT_Done_MM_Var after use.    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_MM_Var
+   *
+   * @description:
+   *   Retrieve a variation descriptor for a given font.
+   *
+   *   This function works with all supported variation formats.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @output:
+   *   amaster ::
+   *     The variation descriptor.  Allocates a data structure, which the
+   *     user must deallocate with a call to @FT_Done_MM_Var after use.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_MM_Var( FT_Face      face,
                  FT_MM_Var*  *amaster );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_MM_Var                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Free the memory allocated by @FT_Get_MM_Var.                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle of the face's parent library object that was   */
-  /*               used in the call to @FT_Get_MM_Var to create `amaster'. */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_MM_Var
+   *
+   * @description:
+   *   Free the memory allocated by @FT_Get_MM_Var.
+   *
+   * @input:
+   *   library ::
+   *     A handle of the face's parent library object that was used in the
+   *     call to @FT_Get_MM_Var to create `amaster`.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Done_MM_Var( FT_Library   library,
                   FT_MM_Var   *amaster );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_MM_Design_Coordinates                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    For Adobe MM fonts, choose an interpolated font design through     */
-  /*    design coordinates.                                                */
-  /*                                                                       */
-  /*    This function can't be used with TrueType GX or OpenType variation */
-  /*    fonts.                                                             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: A handle to the source face.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    num_coords :: The number of available design coordinates.  If it   */
-  /*                  is larger than the number of axes, ignore the excess */
-  /*                  values.  If it is smaller than the number of axes,   */
-  /*                  use default values for the remaining axes.           */
-  /*                                                                       */
-  /*    coords     :: An array of design coordinates.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    [Since 2.8.1] To reset all axes to the default values, call the    */
-  /*    function with `num_coords' set to zero and `coords' set to NULL.   */
-  /*                                                                       */
-  /*    [Since 2.9] If `num_coords' is larger than zero, this function     */
-  /*    sets the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags'    */
-  /*    field (i.e., @FT_IS_VARIATION will return true).  If `num_coords'  */
-  /*    is zero, this bit flag gets unset.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_MM_Design_Coordinates
+   *
+   * @description:
+   *   For Adobe MM fonts, choose an interpolated font design through design
+   *   coordinates.
+   *
+   *   This function can't be used with TrueType GX or OpenType variation
+   *   fonts.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @input:
+   *   num_coords ::
+   *     The number of available design coordinates.  If it is larger than
+   *     the number of axes, ignore the excess values.  If it is smaller than
+   *     the number of axes, use default values for the remaining axes.
+   *
+   *   coords ::
+   *     An array of design coordinates.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   [Since 2.8.1] To reset all axes to the default values, call the
+   *   function with `num_coords` set to zero and `coords` set to `NULL`.
+   *
+   *   [Since 2.9] If `num_coords` is larger than zero, this function sets
+   *   the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
+   *   (i.e., @FT_IS_VARIATION will return true).  If `num_coords` is zero,
+   *   this bit flag gets unset.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_MM_Design_Coordinates( FT_Face   face,
                                 FT_UInt   num_coords,
                                 FT_Long*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Var_Design_Coordinates                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Choose an interpolated font design through design coordinates.     */
-  /*                                                                       */
-  /*    This function works with all supported variation formats.          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: A handle to the source face.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    num_coords :: The number of available design coordinates.  If it   */
-  /*                  is larger than the number of axes, ignore the excess */
-  /*                  values.  If it is smaller than the number of axes,   */
-  /*                  use default values for the remaining axes.           */
-  /*                                                                       */
-  /*    coords     :: An array of design coordinates.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    [Since 2.8.1] To reset all axes to the default values, call the    */
-  /*    function with `num_coords' set to zero and `coords' set to NULL.   */
-  /*    [Since 2.9] `Default values' means the currently selected named    */
-  /*    instance (or the base font if no named instance is selected).      */
-  /*                                                                       */
-  /*    [Since 2.9] If `num_coords' is larger than zero, this function     */
-  /*    sets the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags'    */
-  /*    field (i.e., @FT_IS_VARIATION will return true).  If `num_coords'  */
-  /*    is zero, this bit flag gets unset.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Var_Design_Coordinates
+   *
+   * @description:
+   *   Choose an interpolated font design through design coordinates.
+   *
+   *   This function works with all supported variation formats.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @input:
+   *   num_coords ::
+   *     The number of available design coordinates.  If it is larger than
+   *     the number of axes, ignore the excess values.  If it is smaller than
+   *     the number of axes, use default values for the remaining axes.
+   *
+   *   coords ::
+   *     An array of design coordinates.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   [Since 2.8.1] To reset all axes to the default values, call the
+   *   function with `num_coords` set to zero and `coords` set to `NULL`.
+   *   [Since 2.9] 'Default values' means the currently selected named
+   *   instance (or the base font if no named instance is selected).
+   *
+   *   [Since 2.9] If `num_coords` is larger than zero, this function sets
+   *   the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
+   *   (i.e., @FT_IS_VARIATION will return true).  If `num_coords` is zero,
+   *   this bit flag gets unset.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Var_Design_Coordinates( FT_Face    face,
                                  FT_UInt    num_coords,
                                  FT_Fixed*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Var_Design_Coordinates                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the design coordinates of the currently selected interpolated  */
-  /*    font.                                                              */
-  /*                                                                       */
-  /*    This function works with all supported variation formats.          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: A handle to the source face.                         */
-  /*                                                                       */
-  /*    num_coords :: The number of design coordinates to retrieve.  If it */
-  /*                  is larger than the number of axes, set the excess    */
-  /*                  values to~0.                                         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    coords     :: The design coordinates array.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.7.1                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Var_Design_Coordinates
+   *
+   * @description:
+   *   Get the design coordinates of the currently selected interpolated
+   *   font.
+   *
+   *   This function works with all supported variation formats.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   num_coords ::
+   *     The number of design coordinates to retrieve.  If it is larger than
+   *     the number of axes, set the excess values to~0.
+   *
+   * @output:
+   *   coords ::
+   *     The design coordinates array.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @since:
+   *   2.7.1
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Var_Design_Coordinates( FT_Face    face,
                                  FT_UInt    num_coords,
                                  FT_Fixed*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_MM_Blend_Coordinates                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Choose an interpolated font design through normalized blend        */
-  /*    coordinates.                                                       */
-  /*                                                                       */
-  /*    This function works with all supported variation formats.          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: A handle to the source face.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    num_coords :: The number of available design coordinates.  If it   */
-  /*                  is larger than the number of axes, ignore the excess */
-  /*                  values.  If it is smaller than the number of axes,   */
-  /*                  use default values for the remaining axes.           */
-  /*                                                                       */
-  /*    coords     :: The design coordinates array (each element must be   */
-  /*                  between 0 and 1.0 for Adobe MM fonts, and between    */
-  /*                  -1.0 and 1.0 for TrueType GX and OpenType variation  */
-  /*                  fonts).                                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    [Since 2.8.1] To reset all axes to the default values, call the    */
-  /*    function with `num_coords' set to zero and `coords' set to NULL.   */
-  /*    [Since 2.9] `Default values' means the currently selected named    */
-  /*    instance (or the base font if no named instance is selected).      */
-  /*                                                                       */
-  /*    [Since 2.9] If `num_coords' is larger than zero, this function     */
-  /*    sets the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags'    */
-  /*    field (i.e., @FT_IS_VARIATION will return true).  If `num_coords'  */
-  /*    is zero, this bit flag gets unset.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_MM_Blend_Coordinates
+   *
+   * @description:
+   *   Choose an interpolated font design through normalized blend
+   *   coordinates.
+   *
+   *   This function works with all supported variation formats.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @input:
+   *   num_coords ::
+   *     The number of available design coordinates.  If it is larger than
+   *     the number of axes, ignore the excess values.  If it is smaller than
+   *     the number of axes, use default values for the remaining axes.
+   *
+   *   coords ::
+   *     The design coordinates array (each element must be between 0 and 1.0
+   *     for Adobe MM fonts, and between -1.0 and 1.0 for TrueType GX and
+   *     OpenType variation fonts).
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   [Since 2.8.1] To reset all axes to the default values, call the
+   *   function with `num_coords` set to zero and `coords` set to `NULL`.
+   *   [Since 2.9] 'Default values' means the currently selected named
+   *   instance (or the base font if no named instance is selected).
+   *
+   *   [Since 2.9] If `num_coords` is larger than zero, this function sets
+   *   the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
+   *   (i.e., @FT_IS_VARIATION will return true).  If `num_coords` is zero,
+   *   this bit flag gets unset.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_MM_Blend_Coordinates( FT_Face    face,
                                FT_UInt    num_coords,
                                FT_Fixed*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_MM_Blend_Coordinates                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the normalized blend coordinates of the currently selected     */
-  /*    interpolated font.                                                 */
-  /*                                                                       */
-  /*    This function works with all supported variation formats.          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: A handle to the source face.                         */
-  /*                                                                       */
-  /*    num_coords :: The number of normalized blend coordinates to        */
-  /*                  retrieve.  If it is larger than the number of axes,  */
-  /*                  set the excess values to~0.5 for Adobe MM fonts, and */
-  /*                  to~0 for TrueType GX and OpenType variation fonts.   */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    coords     :: The normalized blend coordinates array.              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.7.1                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_MM_Blend_Coordinates
+   *
+   * @description:
+   *   Get the normalized blend coordinates of the currently selected
+   *   interpolated font.
+   *
+   *   This function works with all supported variation formats.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   num_coords ::
+   *     The number of normalized blend coordinates to retrieve.  If it is
+   *     larger than the number of axes, set the excess values to~0.5 for
+   *     Adobe MM fonts, and to~0 for TrueType GX and OpenType variation
+   *     fonts.
+   *
+   * @output:
+   *   coords ::
+   *     The normalized blend coordinates array.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @since:
+   *   2.7.1
+   */
   FT_EXPORT( FT_Error )
   FT_Get_MM_Blend_Coordinates( FT_Face    face,
                                FT_UInt    num_coords,
                                FT_Fixed*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Var_Blend_Coordinates                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This is another name of @FT_Set_MM_Blend_Coordinates.              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Var_Blend_Coordinates
+   *
+   * @description:
+   *   This is another name of @FT_Set_MM_Blend_Coordinates.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Var_Blend_Coordinates( FT_Face    face,
                                 FT_UInt    num_coords,
                                 FT_Fixed*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Var_Blend_Coordinates                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This is another name of @FT_Get_MM_Blend_Coordinates.              */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.7.1                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Var_Blend_Coordinates
+   *
+   * @description:
+   *   This is another name of @FT_Get_MM_Blend_Coordinates.
+   *
+   * @since:
+   *   2.7.1
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Var_Blend_Coordinates( FT_Face    face,
                                 FT_UInt    num_coords,
                                 FT_Fixed*  coords );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_VAR_AXIS_FLAG_XXX                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A list of bit flags used in the return value of                    */
-  /*    @FT_Get_Var_Axis_Flags.                                            */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_VAR_AXIS_FLAG_HIDDEN ::                                         */
-  /*      The variation axis should not be exposed to user interfaces.     */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.8.1                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_MM_WeightVector
+   *
+   * @description:
+   *   For Adobe MM fonts, choose an interpolated font design by directly
+   *   setting the weight vector.
+   *
+   *   This function can't be used with TrueType GX or OpenType variation
+   *   fonts.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @input:
+   *   len ::
+   *     The length of the weight vector array.  If it is larger than the
+   *     number of designs, the extra values are ignored.  If it is less than
+   *     the number of designs, the remaining values are set to zero.
+   *
+   *   weightvector ::
+   *     An array representing the weight vector.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Adobe Multiple Master fonts limit the number of designs, and thus the
+   *   length of the weight vector to~16.
+   *
+   *   If `len` is zero and `weightvector` is `NULL`, the weight vector array
+   *   is reset to the default values.
+   *
+   *   The Adobe documentation also states that the values in the
+   *   WeightVector array must total 1.0 +/-~0.001.  In practice this does
+   *   not seem to be enforced, so is not enforced here, either.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_Set_MM_WeightVector( FT_Face    face,
+                          FT_UInt    len,
+                          FT_Fixed*  weightvector );
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_MM_WeightVector
+   *
+   * @description:
+   *   For Adobe MM fonts, retrieve the current weight vector of the font.
+   *
+   *   This function can't be used with TrueType GX or OpenType variation
+   *   fonts.
+   *
+   * @inout:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   len ::
+   *     A pointer to the size of the array to be filled.  If the size of the
+   *     array is less than the number of designs, `FT_Err_Invalid_Argument`
+   *     is returned, and `len` is set to the required size (the number of
+   *     designs).  If the size of the array is greater than the number of
+   *     designs, the remaining entries are set to~0.  On successful
+   *     completion, `len` is set to the number of designs (i.e., the number
+   *     of values written to the array).
+   *
+   * @output:
+   *   weightvector ::
+   *     An array to be filled.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   Adobe Multiple Master fonts limit the number of designs, and thus the
+   *   length of the WeightVector to~16.
+   *
+   * @since:
+   *   2.10
+   */
+  FT_EXPORT( FT_Error )
+  FT_Get_MM_WeightVector( FT_Face    face,
+                          FT_UInt*   len,
+                          FT_Fixed*  weightvector );
+
+
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_VAR_AXIS_FLAG_XXX
+   *
+   * @description:
+   *   A list of bit flags used in the return value of
+   *   @FT_Get_Var_Axis_Flags.
+   *
+   * @values:
+   *   FT_VAR_AXIS_FLAG_HIDDEN ::
+   *     The variation axis should not be exposed to user interfaces.
+   *
+   * @since:
+   *   2.8.1
+   */
 #define FT_VAR_AXIS_FLAG_HIDDEN  1
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Var_Axis_Flags                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the `flags' field of an OpenType Variation Axis Record.        */
-  /*                                                                       */
-  /*    Not meaningful for Adobe MM fonts (`*flags' is always zero).       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    master     :: The variation descriptor.                            */
-  /*                                                                       */
-  /*    axis_index :: The index of the requested variation axis.           */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    flags      :: The `flags' field.  See @FT_VAR_AXIS_FLAG_XXX for    */
-  /*                  possible values.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.8.1                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Var_Axis_Flags
+   *
+   * @description:
+   *   Get the 'flags' field of an OpenType Variation Axis Record.
+   *
+   *   Not meaningful for Adobe MM fonts (`*flags` is always zero).
+   *
+   * @input:
+   *   master ::
+   *     The variation descriptor.
+   *
+   *   axis_index ::
+   *     The index of the requested variation axis.
+   *
+   * @output:
+   *   flags ::
+   *     The 'flags' field.  See @FT_VAR_AXIS_FLAG_XXX for possible values.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @since:
+   *   2.8.1
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Var_Axis_Flags( FT_MM_Var*  master,
                          FT_UInt     axis_index,
                          FT_UInt*    flags );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Named_Instance                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set or change the current named instance.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face           :: A handle to the source face.                     */
-  /*                                                                       */
-  /*    instance_index :: The index of the requested instance, starting    */
-  /*                      with value 1.  If set to value 0, FreeType       */
-  /*                      switches to font access without a named          */
-  /*                      instance.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The function uses the value of `instance_index' to set bits 16-30  */
-  /*    of the face's `face_index' field.  It also resets any variation    */
-  /*    applied to the font, and the @FT_FACE_FLAG_VARIATION bit of the    */
-  /*    face's `face_flags' field gets reset to zero (i.e.,                */
-  /*    @FT_IS_VARIATION will return false).                               */
-  /*                                                                       */
-  /*    For Adobe MM fonts (which don't have named instances) this         */
-  /*    function simply resets the current face to the default instance.   */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.9                                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Named_Instance
+   *
+   * @description:
+   *   Set or change the current named instance.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   instance_index ::
+   *     The index of the requested instance, starting with value 1.  If set
+   *     to value 0, FreeType switches to font access without a named
+   *     instance.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The function uses the value of `instance_index` to set bits 16-30 of
+   *   the face's `face_index` field.  It also resets any variation applied
+   *   to the font, and the @FT_FACE_FLAG_VARIATION bit of the face's
+   *   `face_flags` field gets reset to zero (i.e., @FT_IS_VARIATION will
+   *   return false).
+   *
+   *   For Adobe MM fonts (which don't have named instances) this function
+   *   simply resets the current face to the default instance.
+   *
+   * @since:
+   *   2.9
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Named_Instance( FT_Face  face,
                          FT_UInt  instance_index );
diff --git a/thirdparty/freetype/include/freetype/ftmodapi.h b/thirdparty/freetype/include/freetype/ftmodapi.h
index a6eb876ebe..88488bfe89 100644
--- a/thirdparty/freetype/include/freetype/ftmodapi.h
+++ b/thirdparty/freetype/include/freetype/ftmodapi.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmodapi.h                                                             */
-/*                                                                         */
-/*    FreeType modules public interface (specification).                   */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftmodapi.h
+ *
+ *   FreeType modules public interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTMODAPI_H_
@@ -33,77 +33,77 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    module_management                                                  */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Module Management                                                  */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    How to add, upgrade, remove, and control modules from FreeType.    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The definitions below are used to manage modules within FreeType.  */
-  /*    Modules can be added, upgraded, and removed at runtime.            */
-  /*    Additionally, some module properties can be controlled also.       */
-  /*                                                                       */
-  /*    Here is a list of possible values of the `module_name' field in    */
-  /*    the @FT_Module_Class structure.                                    */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      autofitter                                                       */
-  /*      bdf                                                              */
-  /*      cff                                                              */
-  /*      gxvalid                                                          */
-  /*      otvalid                                                          */
-  /*      pcf                                                              */
-  /*      pfr                                                              */
-  /*      psaux                                                            */
-  /*      pshinter                                                         */
-  /*      psnames                                                          */
-  /*      raster1                                                          */
-  /*      sfnt                                                             */
-  /*      smooth, smooth-lcd, smooth-lcdv                                  */
-  /*      truetype                                                         */
-  /*      type1                                                            */
-  /*      type42                                                           */
-  /*      t1cid                                                            */
-  /*      winfonts                                                         */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Note that the FreeType Cache sub-system is not a FreeType module.  */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_Module                                                          */
-  /*    FT_Module_Constructor                                              */
-  /*    FT_Module_Destructor                                               */
-  /*    FT_Module_Requester                                                */
-  /*    FT_Module_Class                                                    */
-  /*                                                                       */
-  /*    FT_Add_Module                                                      */
-  /*    FT_Get_Module                                                      */
-  /*    FT_Remove_Module                                                   */
-  /*    FT_Add_Default_Modules                                             */
-  /*                                                                       */
-  /*    FT_Property_Set                                                    */
-  /*    FT_Property_Get                                                    */
-  /*    FT_Set_Default_Properties                                          */
-  /*                                                                       */
-  /*    FT_New_Library                                                     */
-  /*    FT_Done_Library                                                    */
-  /*    FT_Reference_Library                                               */
-  /*                                                                       */
-  /*    FT_Renderer                                                        */
-  /*    FT_Renderer_Class                                                  */
-  /*                                                                       */
-  /*    FT_Get_Renderer                                                    */
-  /*    FT_Set_Renderer                                                    */
-  /*                                                                       */
-  /*    FT_Set_Debug_Hook                                                  */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   module_management
+   *
+   * @title:
+   *   Module Management
+   *
+   * @abstract:
+   *   How to add, upgrade, remove, and control modules from FreeType.
+   *
+   * @description:
+   *   The definitions below are used to manage modules within FreeType.
+   *   Modules can be added, upgraded, and removed at runtime.  Additionally,
+   *   some module properties can be controlled also.
+   *
+   *   Here is a list of possible values of the `module_name` field in the
+   *   @FT_Module_Class structure.
+   *
+   *   ```
+   *     autofitter
+   *     bdf
+   *     cff
+   *     gxvalid
+   *     otvalid
+   *     pcf
+   *     pfr
+   *     psaux
+   *     pshinter
+   *     psnames
+   *     raster1
+   *     sfnt
+   *     smooth, smooth-lcd, smooth-lcdv
+   *     truetype
+   *     type1
+   *     type42
+   *     t1cid
+   *     winfonts
+   *   ```
+   *
+   *   Note that the FreeType Cache sub-system is not a FreeType module.
+   *
+   * @order:
+   *   FT_Module
+   *   FT_Module_Constructor
+   *   FT_Module_Destructor
+   *   FT_Module_Requester
+   *   FT_Module_Class
+   *
+   *   FT_Add_Module
+   *   FT_Get_Module
+   *   FT_Remove_Module
+   *   FT_Add_Default_Modules
+   *
+   *   FT_Property_Set
+   *   FT_Property_Get
+   *   FT_Set_Default_Properties
+   *
+   *   FT_New_Library
+   *   FT_Done_Library
+   *   FT_Reference_Library
+   *
+   *   FT_Renderer
+   *   FT_Renderer_Class
+   *
+   *   FT_Get_Renderer
+   *   FT_Set_Renderer
+   *
+   *   FT_Set_Debug_Hook
+   *
+   */
 
 
   /* module bit flags */
@@ -137,83 +137,99 @@ FT_BEGIN_HEADER
   typedef FT_Pointer  FT_Module_Interface;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Module_Constructor                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to initialize (not create) a new module object.    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    module :: The module to initialize.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Module_Constructor
+   *
+   * @description:
+   *   A function used to initialize (not create) a new module object.
+   *
+   * @input:
+   *   module ::
+   *     The module to initialize.
+   */
   typedef FT_Error
   (*FT_Module_Constructor)( FT_Module  module );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Module_Destructor                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to finalize (not destroy) a given module object.   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    module :: The module to finalize.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Module_Destructor
+   *
+   * @description:
+   *   A function used to finalize (not destroy) a given module object.
+   *
+   * @input:
+   *   module ::
+   *     The module to finalize.
+   */
   typedef void
   (*FT_Module_Destructor)( FT_Module  module );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Module_Requester                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to query a given module for a specific interface.  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    module :: The module to be searched.                               */
-  /*                                                                       */
-  /*    name ::   The name of the interface in the module.                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Module_Requester
+   *
+   * @description:
+   *   A function used to query a given module for a specific interface.
+   *
+   * @input:
+   *   module ::
+   *     The module to be searched.
+   *
+   *   name ::
+   *     The name of the interface in the module.
+   */
   typedef FT_Module_Interface
   (*FT_Module_Requester)( FT_Module    module,
                           const char*  name );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Module_Class                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The module class descriptor.                                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    module_flags    :: Bit flags describing the module.                */
-  /*                                                                       */
-  /*    module_size     :: The size of one module object/instance in       */
-  /*                       bytes.                                          */
-  /*                                                                       */
-  /*    module_name     :: The name of the module.                         */
-  /*                                                                       */
-  /*    module_version  :: The version, as a 16.16 fixed number            */
-  /*                       (major.minor).                                  */
-  /*                                                                       */
-  /*    module_requires :: The version of FreeType this module requires,   */
-  /*                       as a 16.16 fixed number (major.minor).  Starts  */
-  /*                       at version 2.0, i.e., 0x20000.                  */
-  /*                                                                       */
-  /*    module_init     :: The initializing function.                      */
-  /*                                                                       */
-  /*    module_done     :: The finalizing function.                        */
-  /*                                                                       */
-  /*    get_interface   :: The interface requesting function.              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Module_Class
+   *
+   * @description:
+   *   The module class descriptor.  While being a public structure necessary
+   *   for FreeType's module bookkeeping, most of the fields are essentially
+   *   internal, not to be used directly by an application.
+   *
+   * @fields:
+   *   module_flags ::
+   *     Bit flags describing the module.
+   *
+   *   module_size ::
+   *     The size of one module object/instance in bytes.
+   *
+   *   module_name ::
+   *     The name of the module.
+   *
+   *   module_version ::
+   *     The version, as a 16.16 fixed number (major.minor).
+   *
+   *   module_requires ::
+   *     The version of FreeType this module requires, as a 16.16 fixed
+   *     number (major.minor).  Starts at version 2.0, i.e., 0x20000.
+   *
+   *   module_interface ::
+   *     A typeless pointer to a structure (which varies between different
+   *     modules) that holds the module's interface functions.  This is
+   *     essentially what `get_interface` returns.
+   *
+   *   module_init ::
+   *     The initializing function.
+   *
+   *   module_done ::
+   *     The finalizing function.
+   *
+   *   get_interface ::
+   *     The interface requesting function.
+   */
   typedef struct  FT_Module_Class_
   {
     FT_ULong               module_flags;
@@ -231,83 +247,89 @@ FT_BEGIN_HEADER
   } FT_Module_Class;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Add_Module                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Add a new module to a given library instance.                      */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library :: A handle to the library object.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    clazz   :: A pointer to class descriptor for the module.           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    An error will be returned if a module already exists by that name, */
-  /*    or if the module requires a version of FreeType that is too great. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Add_Module
+   *
+   * @description:
+   *   Add a new module to a given library instance.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library object.
+   *
+   * @input:
+   *   clazz ::
+   *     A pointer to class descriptor for the module.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   An error will be returned if a module already exists by that name, or
+   *   if the module requires a version of FreeType that is too great.
+   */
   FT_EXPORT( FT_Error )
   FT_Add_Module( FT_Library              library,
                  const FT_Module_Class*  clazz );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Module                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Find a module by its name.                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library     :: A handle to the library object.                     */
-  /*                                                                       */
-  /*    module_name :: The module's name (as an ASCII string).             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A module handle.  0~if none was found.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    FreeType's internal modules aren't documented very well, and you   */
-  /*    should look up the source code for details.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Module
+   *
+   * @description:
+   *   Find a module by its name.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the library object.
+   *
+   *   module_name ::
+   *     The module's name (as an ASCII string).
+   *
+   * @return:
+   *   A module handle.  0~if none was found.
+   *
+   * @note:
+   *   FreeType's internal modules aren't documented very well, and you
+   *   should look up the source code for details.
+   */
   FT_EXPORT( FT_Module )
   FT_Get_Module( FT_Library   library,
                  const char*  module_name );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Remove_Module                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Remove a given module from a library instance.                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library :: A handle to a library object.                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    module  :: A handle to a module object.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The module object is destroyed by the function in case of success. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Remove_Module
+   *
+   * @description:
+   *   Remove a given module from a library instance.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to a library object.
+   *
+   * @input:
+   *   module ::
+   *     A handle to a module object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The module object is destroyed by the function in case of success.
+   */
   FT_EXPORT( FT_Error )
   FT_Remove_Module( FT_Library  library,
                     FT_Module   module );
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Property_Set
@@ -317,53 +339,51 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    library ::
-   *       A handle to the library the module is part of.
+   *      A handle to the library the module is part of.
    *
    *    module_name ::
-   *       The module name.
+   *      The module name.
    *
    *    property_name ::
-   *       The property name.  Properties are described in section
-   *       @properties.
+   *      The property name.  Properties are described in section
+   *      @properties.
    *
-   *       Note that only a few modules have properties.
+   *      Note that only a few modules have properties.
    *
    *    value ::
-   *       A generic pointer to a variable or structure that gives the new
-   *       value of the property.  The exact definition of `value' is
-   *       dependent on the property; see section @properties.
+   *      A generic pointer to a variable or structure that gives the new
+   *      value of the property.  The exact definition of `value` is
+   *      dependent on the property; see section @properties.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *    If `module_name' isn't a valid module name, or `property_name'
-   *    doesn't specify a valid property, or if `value' doesn't represent a
+   *    If `module_name` isn't a valid module name, or `property_name`
+   *    doesn't specify a valid property, or if `value` doesn't represent a
    *    valid value for the given property, an error is returned.
    *
-   *    The following example sets property `bar' (a simple integer) in
-   *    module `foo' to value~1.
+   *    The following example sets property 'bar' (a simple integer) in
+   *    module 'foo' to value~1.
    *
-   *    {
+   *    ```
    *      FT_UInt  bar;
    *
    *
    *      bar = 1;
    *      FT_Property_Set( library, "foo", "bar", &bar );
-   *    }
+   *    ```
    *
    *    Note that the FreeType Cache sub-system doesn't recognize module
    *    property changes.  To avoid glyph lookup confusion within the cache
-   *    you should call @FTC_Manager_Reset to completely flush the cache if
-   *    a module property gets changed after @FTC_Manager_New has been
-   *    called.
+   *    you should call @FTC_Manager_Reset to completely flush the cache if a
+   *    module property gets changed after @FTC_Manager_New has been called.
    *
-   *    It is not possible to set properties of the FreeType Cache
-   *    sub-system itself with FT_Property_Set; use @FTC_Property_Set
-   *    instead.
+   *    It is not possible to set properties of the FreeType Cache sub-system
+   *    itself with FT_Property_Set; use @FTC_Property_Set instead.
    *
-   *  @since:
-   *    2.4.11
+   * @since:
+   *   2.4.11
    *
    */
   FT_EXPORT( FT_Error )
@@ -373,7 +393,7 @@ FT_BEGIN_HEADER
                    const void*       value );
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Property_Get
@@ -383,32 +403,32 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    library ::
-   *       A handle to the library the module is part of.
+   *      A handle to the library the module is part of.
    *
    *    module_name ::
-   *       The module name.
+   *      The module name.
    *
    *    property_name ::
-   *       The property name.  Properties are described in section
-   *       @properties.
+   *      The property name.  Properties are described in section
+   *      @properties.
    *
    * @inout:
    *    value ::
-   *       A generic pointer to a variable or structure that gives the
-   *       value of the property.  The exact definition of `value' is
-   *       dependent on the property; see section @properties.
+   *      A generic pointer to a variable or structure that gives the value
+   *      of the property.  The exact definition of `value` is dependent on
+   *      the property; see section @properties.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *    If `module_name' isn't a valid module name, or `property_name'
-   *    doesn't specify a valid property, or if `value' doesn't represent a
+   *    If `module_name` isn't a valid module name, or `property_name`
+   *    doesn't specify a valid property, or if `value` doesn't represent a
    *    valid value for the given property, an error is returned.
    *
-   *    The following example gets property `baz' (a range) in module `foo'.
+   *    The following example gets property 'baz' (a range) in module 'foo'.
    *
-   *    {
+   *    ```
    *      typedef  range_
    *      {
    *        FT_Int32  min;
@@ -420,13 +440,13 @@ FT_BEGIN_HEADER
    *
    *
    *      FT_Property_Get( library, "foo", "baz", &baz );
-   *    }
+   *    ```
    *
    *    It is not possible to retrieve properties of the FreeType Cache
    *    sub-system with FT_Property_Get; use @FTC_Property_Get instead.
    *
-   *  @since:
-   *    2.4.11
+   * @since:
+   *   2.4.11
    *
    */
   FT_EXPORT( FT_Error )
@@ -436,189 +456,243 @@ FT_BEGIN_HEADER
                    void*             value );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Default_Properties                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    If compilation option FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES is   */
-  /*    set, this function reads the `FREETYPE_PROPERTIES' environment     */
-  /*    variable to control driver properties.  See section @properties    */
-  /*    for more.                                                          */
-  /*                                                                       */
-  /*    If the compilation option is not set, this function does nothing.  */
-  /*                                                                       */
-  /*    `FREETYPE_PROPERTIES' has the following syntax form (broken here   */
-  /*    into multiple lines for better readability).                       */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      <optional whitespace>                                            */
-  /*      <module-name1> ':'                                               */
-  /*      <property-name1> '=' <property-value1>                           */
-  /*      <whitespace>                                                     */
-  /*      <module-name2> ':'                                               */
-  /*      <property-name2> '=' <property-value2>                           */
-  /*      ...                                                              */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    Example:                                                           */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      FREETYPE_PROPERTIES=truetype:interpreter-version=35 \            */
-  /*                          cff:no-stem-darkening=1 \                    */
-  /*                          autofitter:warping=1                         */
-  /*    }                                                                  */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library :: A handle to a new library object.                       */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.8                                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Default_Properties
+   *
+   * @description:
+   *   If compilation option `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES` is
+   *   set, this function reads the `FREETYPE_PROPERTIES` environment
+   *   variable to control driver properties.  See section @properties for
+   *   more.
+   *
+   *   If the compilation option is not set, this function does nothing.
+   *
+   *   `FREETYPE_PROPERTIES` has the following syntax form (broken here into
+   *   multiple lines for better readability).
+   *
+   *   ```
+   *     <optional whitespace>
+   *     <module-name1> ':'
+   *     <property-name1> '=' <property-value1>
+   *     <whitespace>
+   *     <module-name2> ':'
+   *     <property-name2> '=' <property-value2>
+   *     ...
+   *   ```
+   *
+   *   Example:
+   *
+   *   ```
+   *     FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
+   *                         cff:no-stem-darkening=1 \
+   *                         autofitter:warping=1
+   *   ```
+   *
+   * @inout:
+   *   library ::
+   *     A handle to a new library object.
+   *
+   * @since:
+   *   2.8
+   */
   FT_EXPORT( void )
   FT_Set_Default_Properties( FT_Library  library );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Reference_Library                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A counter gets initialized to~1 at the time an @FT_Library         */
-  /*    structure is created.  This function increments the counter.       */
-  /*    @FT_Done_Library then only destroys a library if the counter is~1, */
-  /*    otherwise it simply decrements the counter.                        */
-  /*                                                                       */
-  /*    This function helps in managing life-cycles of structures that     */
-  /*    reference @FT_Library objects.                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to a target library object.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.4.2                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Reference_Library
+   *
+   * @description:
+   *   A counter gets initialized to~1 at the time an @FT_Library structure
+   *   is created.  This function increments the counter.  @FT_Done_Library
+   *   then only destroys a library if the counter is~1, otherwise it simply
+   *   decrements the counter.
+   *
+   *   This function helps in managing life-cycles of structures that
+   *   reference @FT_Library objects.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a target library object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @since:
+   *   2.4.2
+   */
   FT_EXPORT( FT_Error )
   FT_Reference_Library( FT_Library  library );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Library                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used to create a new FreeType library instance    */
-  /*    from a given memory object.  It is thus possible to use libraries  */
-  /*    with distinct memory allocators within the same program.  Note,    */
-  /*    however, that the used @FT_Memory structure is expected to remain  */
-  /*    valid for the life of the @FT_Library object.                      */
-  /*                                                                       */
-  /*    Normally, you would call this function (followed by a call to      */
-  /*    @FT_Add_Default_Modules or a series of calls to @FT_Add_Module,    */
-  /*    and a call to @FT_Set_Default_Properties) instead of               */
-  /*    @FT_Init_FreeType to initialize the FreeType library.              */
-  /*                                                                       */
-  /*    Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a      */
-  /*    library instance.                                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory   :: A handle to the original memory object.                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    alibrary :: A pointer to handle of a new library object.           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    See the discussion of reference counters in the description of     */
-  /*    @FT_Reference_Library.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Library
+   *
+   * @description:
+   *   This function is used to create a new FreeType library instance from a
+   *   given memory object.  It is thus possible to use libraries with
+   *   distinct memory allocators within the same program.  Note, however,
+   *   that the used @FT_Memory structure is expected to remain valid for the
+   *   life of the @FT_Library object.
+   *
+   *   Normally, you would call this function (followed by a call to
+   *   @FT_Add_Default_Modules or a series of calls to @FT_Add_Module, and a
+   *   call to @FT_Set_Default_Properties) instead of @FT_Init_FreeType to
+   *   initialize the FreeType library.
+   *
+   *   Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a library
+   *   instance.
+   *
+   * @input:
+   *   memory ::
+   *     A handle to the original memory object.
+   *
+   * @output:
+   *   alibrary ::
+   *     A pointer to handle of a new library object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   See the discussion of reference counters in the description of
+   *   @FT_Reference_Library.
+   */
   FT_EXPORT( FT_Error )
   FT_New_Library( FT_Memory    memory,
                   FT_Library  *alibrary );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_Library                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Discard a given library object.  This closes all drivers and       */
-  /*    discards all resource objects.                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to the target library.                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    See the discussion of reference counters in the description of     */
-  /*    @FT_Reference_Library.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_Library
+   *
+   * @description:
+   *   Discard a given library object.  This closes all drivers and discards
+   *   all resource objects.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the target library.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   See the discussion of reference counters in the description of
+   *   @FT_Reference_Library.
+   */
   FT_EXPORT( FT_Error )
   FT_Done_Library( FT_Library  library );
 
-  /* */
 
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_DebugHook_Func
+   *
+   * @description:
+   *   A drop-in replacement (or rather a wrapper) for the bytecode or
+   *   charstring interpreter's main loop function.
+   *
+   *   Its job is essentially
+   *
+   *   - to activate debug mode to enforce single-stepping,
+   *
+   *   - to call the main loop function to interpret the next opcode, and
+   *
+   *   - to show the changed context to the user.
+   *
+   *   An example for such a main loop function is `TT_RunIns` (declared in
+   *   FreeType's internal header file `src/truetype/ttinterp.h`).
+   *
+   *   Have a look at the source code of the `ttdebug` FreeType demo program
+   *   for an example of a drop-in replacement.
+   *
+   * @inout:
+   *   arg ::
+   *     A typeless pointer, to be cast to the main loop function's data
+   *     structure (which depends on the font module).  For TrueType fonts
+   *     it is bytecode interpreter's execution context, `TT_ExecContext`,
+   *     which is declared in FreeType's internal header file `tttypes.h`.
+   */
   typedef void
   (*FT_DebugHook_Func)( void*  arg );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Debug_Hook                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set a debug hook function for debugging the interpreter of a font  */
-  /*    format.                                                            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    hook_index :: The index of the debug hook.  You should use the     */
-  /*                  values defined in `ftobjs.h', e.g.,                  */
-  /*                  `FT_DEBUG_HOOK_TRUETYPE'.                            */
-  /*                                                                       */
-  /*    debug_hook :: The function used to debug the interpreter.          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Currently, four debug hook slots are available, but only two (for  */
-  /*    the TrueType and the Type~1 interpreter) are defined.              */
-  /*                                                                       */
-  /*    Since the internal headers of FreeType are no longer installed,    */
-  /*    the symbol `FT_DEBUG_HOOK_TRUETYPE' isn't available publicly.      */
-  /*    This is a bug and will be fixed in a forthcoming release.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_DEBUG_HOOK_XXX
+   *
+   * @description:
+   *   A list of named debug hook indices.
+   *
+   * @values:
+   *   FT_DEBUG_HOOK_TRUETYPE::
+   *     This hook index identifies the TrueType bytecode debugger.
+   */
+#define FT_DEBUG_HOOK_TRUETYPE  0
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Debug_Hook
+   *
+   * @description:
+   *   Set a debug hook function for debugging the interpreter of a font
+   *   format.
+   *
+   *   While this is a public API function, an application needs access to
+   *   FreeType's internal header files to do something useful.
+   *
+   *   Have a look at the source code of the `ttdebug` FreeType demo program
+   *   for an example of its usage.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library object.
+   *
+   * @input:
+   *   hook_index ::
+   *     The index of the debug hook.  You should use defined enumeration
+   *     macros like @FT_DEBUG_HOOK_TRUETYPE.
+   *
+   *   debug_hook ::
+   *     The function used to debug the interpreter.
+   *
+   * @note:
+   *   Currently, four debug hook slots are available, but only one (for the
+   *   TrueType interpreter) is defined.
+   */
   FT_EXPORT( void )
   FT_Set_Debug_Hook( FT_Library         library,
                      FT_UInt            hook_index,
                      FT_DebugHook_Func  debug_hook );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Add_Default_Modules                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Add the set of default drivers to a given library object.          */
-  /*    This is only useful when you create a library object with          */
-  /*    @FT_New_Library (usually to plug a custom memory manager).         */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library :: A handle to a new library object.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Add_Default_Modules
+   *
+   * @description:
+   *   Add the set of default drivers to a given library object.  This is
+   *   only useful when you create a library object with @FT_New_Library
+   *   (usually to plug a custom memory manager).
+   *
+   * @inout:
+   *   library ::
+   *     A handle to a new library object.
+   */
   FT_EXPORT( void )
   FT_Add_Default_Modules( FT_Library  library );
 
@@ -644,28 +718,28 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   *  @enum:
-   *     FT_TrueTypeEngineType
+   * @enum:
+   *    FT_TrueTypeEngineType
    *
-   *  @description:
-   *     A list of values describing which kind of TrueType bytecode
-   *     engine is implemented in a given FT_Library instance.  It is used
-   *     by the @FT_Get_TrueType_Engine_Type function.
+   * @description:
+   *    A list of values describing which kind of TrueType bytecode engine is
+   *    implemented in a given FT_Library instance.  It is used by the
+   *    @FT_Get_TrueType_Engine_Type function.
    *
-   *  @values:
-   *     FT_TRUETYPE_ENGINE_TYPE_NONE ::
-   *       The library doesn't implement any kind of bytecode interpreter.
+   * @values:
+   *    FT_TRUETYPE_ENGINE_TYPE_NONE ::
+   *      The library doesn't implement any kind of bytecode interpreter.
    *
-   *     FT_TRUETYPE_ENGINE_TYPE_UNPATENTED ::
-   *       Deprecated and removed.
+   *    FT_TRUETYPE_ENGINE_TYPE_UNPATENTED ::
+   *      Deprecated and removed.
    *
-   *     FT_TRUETYPE_ENGINE_TYPE_PATENTED ::
-   *       The library implements a bytecode interpreter that covers
-   *       the full instruction set of the TrueType virtual machine (this
-   *       was governed by patents until May 2010, hence the name).
+   *    FT_TRUETYPE_ENGINE_TYPE_PATENTED ::
+   *      The library implements a bytecode interpreter that covers the full
+   *      instruction set of the TrueType virtual machine (this was governed
+   *      by patents until May 2010, hence the name).
    *
-   *  @since:
-   *     2.2
+   * @since:
+   *    2.2
    *
    */
   typedef enum  FT_TrueTypeEngineType_
@@ -679,22 +753,22 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   *  @func:
-   *     FT_Get_TrueType_Engine_Type
+   * @function:
+   *    FT_Get_TrueType_Engine_Type
    *
-   *  @description:
-   *     Return an @FT_TrueTypeEngineType value to indicate which level of
-   *     the TrueType virtual machine a given library instance supports.
+   * @description:
+   *    Return an @FT_TrueTypeEngineType value to indicate which level of the
+   *    TrueType virtual machine a given library instance supports.
    *
-   *  @input:
-   *     library ::
-   *       A library instance.
+   * @input:
+   *    library ::
+   *      A library instance.
    *
-   *  @return:
-   *     A value indicating which level is supported.
+   * @return:
+   *    A value indicating which level is supported.
    *
-   *  @since:
-   *     2.2
+   * @since:
+   *    2.2
    *
    */
   FT_EXPORT( FT_TrueTypeEngineType )
diff --git a/thirdparty/freetype/include/freetype/ftmoderr.h b/thirdparty/freetype/include/freetype/ftmoderr.h
index e0fc1312bd..e16993572c 100644
--- a/thirdparty/freetype/include/freetype/ftmoderr.h
+++ b/thirdparty/freetype/include/freetype/ftmoderr.h
@@ -1,94 +1,103 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmoderr.h                                                             */
-/*                                                                         */
-/*    FreeType module error offsets (specification).                       */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the FreeType module error codes.          */
-  /*                                                                       */
-  /* If the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in `ftoption.h' is    */
-  /* set, the lower byte of an error value identifies the error code as    */
-  /* usual.  In addition, the higher byte identifies the module.  For      */
-  /* example, the error `FT_Err_Invalid_File_Format' has value 0x0003, the */
-  /* error `TT_Err_Invalid_File_Format' has value 0x1303, the error        */
-  /* `T1_Err_Invalid_File_Format' has value 0x1403, etc.                   */
-  /*                                                                       */
-  /* Note that `FT_Err_Ok', `TT_Err_Ok', etc. are always equal to zero,    */
-  /* including the high byte.                                              */
-  /*                                                                       */
-  /* If FT_CONFIG_OPTION_USE_MODULE_ERRORS isn't set, the higher byte of   */
-  /* an error value is set to zero.                                        */
-  /*                                                                       */
-  /* To hide the various `XXX_Err_' prefixes in the source code, FreeType  */
-  /* provides some macros in `fttypes.h'.                                  */
-  /*                                                                       */
-  /*   FT_ERR( err )                                                       */
-  /*     Add current error module prefix (as defined with the              */
-  /*     `FT_ERR_PREFIX' macro) to `err'.  For example, in the BDF module  */
-  /*     the line                                                          */
-  /*                                                                       */
-  /*       error = FT_ERR( Invalid_Outline );                              */
-  /*                                                                       */
-  /*     expands to                                                        */
-  /*                                                                       */
-  /*       error = BDF_Err_Invalid_Outline;                                */
-  /*                                                                       */
-  /*     For simplicity, you can always use `FT_Err_Ok' directly instead   */
-  /*     of `FT_ERR( Ok )'.                                                */
-  /*                                                                       */
-  /*   FT_ERR_EQ( errcode, err )                                           */
-  /*   FT_ERR_NEQ( errcode, err )                                          */
-  /*     Compare error code `errcode' with the error `err' for equality    */
-  /*     and inequality, respectively.  Example:                           */
-  /*                                                                       */
-  /*       if ( FT_ERR_EQ( error, Invalid_Outline ) )                      */
-  /*         ...                                                           */
-  /*                                                                       */
-  /*     Using this macro you don't have to think about error prefixes.    */
-  /*     Of course, if module errors are not active, the above example is  */
-  /*     the same as                                                       */
-  /*                                                                       */
-  /*       if ( error == FT_Err_Invalid_Outline )                          */
-  /*         ...                                                           */
-  /*                                                                       */
-  /*   FT_ERROR_BASE( errcode )                                            */
-  /*   FT_ERROR_MODULE( errcode )                                          */
-  /*     Get base error and module error code, respectively.               */
-  /*                                                                       */
-  /*                                                                       */
-  /* It can also be used to create a module error message table easily     */
-  /* with something like                                                   */
-  /*                                                                       */
-  /*   {                                                                   */
-  /*     #undef FTMODERR_H_                                                */
-  /*     #define FT_MODERRDEF( e, v, s )  { FT_Mod_Err_ ## e, s },         */
-  /*     #define FT_MODERR_START_LIST     {                                */
-  /*     #define FT_MODERR_END_LIST       { 0, 0 } };                      */
-  /*                                                                       */
-  /*     const struct                                                      */
-  /*     {                                                                 */
-  /*       int          mod_err_offset;                                    */
-  /*       const char*  mod_err_msg                                        */
-  /*     } ft_mod_errors[] =                                               */
-  /*                                                                       */
-  /*     #include FT_MODULE_ERRORS_H                                       */
-  /*   }                                                                   */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftmoderr.h
+ *
+ *   FreeType module error offsets (specification).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the FreeType module error codes.
+   *
+   * If the macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` in `ftoption.h` is
+   * set, the lower byte of an error value identifies the error code as
+   * usual.  In addition, the higher byte identifies the module.  For
+   * example, the error `FT_Err_Invalid_File_Format` has value 0x0003, the
+   * error `TT_Err_Invalid_File_Format` has value 0x1303, the error
+   * `T1_Err_Invalid_File_Format` has value 0x1403, etc.
+   *
+   * Note that `FT_Err_Ok`, `TT_Err_Ok`, etc. are always equal to zero,
+   * including the high byte.
+   *
+   * If `FT_CONFIG_OPTION_USE_MODULE_ERRORS` isn't set, the higher byte of an
+   * error value is set to zero.
+   *
+   * To hide the various `XXX_Err_` prefixes in the source code, FreeType
+   * provides some macros in `fttypes.h`.
+   *
+   *   FT_ERR( err )
+   *
+   *     Add current error module prefix (as defined with the `FT_ERR_PREFIX`
+   *     macro) to `err`.  For example, in the BDF module the line
+   *
+   *     ```
+   *       error = FT_ERR( Invalid_Outline );
+   *     ```
+   *
+   *     expands to
+   *
+   *     ```
+   *       error = BDF_Err_Invalid_Outline;
+   *     ```
+   *
+   *     For simplicity, you can always use `FT_Err_Ok` directly instead of
+   *     `FT_ERR( Ok )`.
+   *
+   *   FT_ERR_EQ( errcode, err )
+   *   FT_ERR_NEQ( errcode, err )
+   *
+   *     Compare error code `errcode` with the error `err` for equality and
+   *     inequality, respectively.  Example:
+   *
+   *     ```
+   *       if ( FT_ERR_EQ( error, Invalid_Outline ) )
+   *         ...
+   *     ```
+   *
+   *     Using this macro you don't have to think about error prefixes.  Of
+   *     course, if module errors are not active, the above example is the
+   *     same as
+   *
+   *     ```
+   *       if ( error == FT_Err_Invalid_Outline )
+   *         ...
+   *     ```
+   *
+   *   FT_ERROR_BASE( errcode )
+   *   FT_ERROR_MODULE( errcode )
+   *
+   *     Get base error and module error code, respectively.
+   *
+   * It can also be used to create a module error message table easily with
+   * something like
+   *
+   * ```
+   *   #undef FTMODERR_H_
+   *   #define FT_MODERRDEF( e, v, s )  { FT_Mod_Err_ ## e, s },
+   *   #define FT_MODERR_START_LIST     {
+   *   #define FT_MODERR_END_LIST       { 0, 0 } };
+   *
+   *   const struct
+   *   {
+   *     int          mod_err_offset;
+   *     const char*  mod_err_msg
+   *   } ft_mod_errors[] =
+   *
+   *   #include FT_MODULE_ERRORS_H
+   * ```
+   *
+   */
 
 
 #ifndef FTMODERR_H_
diff --git a/thirdparty/freetype/include/freetype/ftotval.h b/thirdparty/freetype/include/freetype/ftotval.h
index 26731c2b9f..c034f48959 100644
--- a/thirdparty/freetype/include/freetype/ftotval.h
+++ b/thirdparty/freetype/include/freetype/ftotval.h
@@ -1,30 +1,30 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftotval.h                                                              */
-/*                                                                         */
-/*    FreeType API for validating OpenType tables (specification).         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-/***************************************************************************/
-/*                                                                         */
-/*                                                                         */
-/* Warning: This module might be moved to a different library in the       */
-/*          future to avoid a tight dependency between FreeType and the    */
-/*          OpenType specification.                                        */
-/*                                                                         */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftotval.h
+ *
+ *   FreeType API for validating OpenType tables (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+/****************************************************************************
+ *
+ *
+ * Warning: This module might be moved to a different library in the
+ *          future to avoid a tight dependency between FreeType and the
+ *          OpenType specification.
+ *
+ *
+ */
 
 
 #ifndef FTOTVAL_H_
@@ -43,62 +43,62 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    ot_validation                                                      */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    OpenType Validation                                                */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    An API to validate OpenType tables.                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of functions to validate     */
-  /*    some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).         */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_OpenType_Validate                                               */
-  /*    FT_OpenType_Free                                                   */
-  /*                                                                       */
-  /*    FT_VALIDATE_OTXXX                                                  */
-  /*                                                                       */
-  /*************************************************************************/
-
-
- /**********************************************************************
-  *
-  * @enum:
-  *    FT_VALIDATE_OTXXX
-  *
-  * @description:
-  *    A list of bit-field constants used with @FT_OpenType_Validate to
-  *    indicate which OpenType tables should be validated.
-  *
-  * @values:
-  *    FT_VALIDATE_BASE ::
-  *      Validate BASE table.
-  *
-  *    FT_VALIDATE_GDEF ::
-  *      Validate GDEF table.
-  *
-  *    FT_VALIDATE_GPOS ::
-  *      Validate GPOS table.
-  *
-  *    FT_VALIDATE_GSUB ::
-  *      Validate GSUB table.
-  *
-  *    FT_VALIDATE_JSTF ::
-  *      Validate JSTF table.
-  *
-  *    FT_VALIDATE_MATH ::
-  *      Validate MATH table.
-  *
-  *    FT_VALIDATE_OT ::
-  *      Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
-  *
-  */
+  /**************************************************************************
+   *
+   * @section:
+   *   ot_validation
+   *
+   * @title:
+   *   OpenType Validation
+   *
+   * @abstract:
+   *   An API to validate OpenType tables.
+   *
+   * @description:
+   *   This section contains the declaration of functions to validate some
+   *   OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
+   *
+   * @order:
+   *   FT_OpenType_Validate
+   *   FT_OpenType_Free
+   *
+   *   FT_VALIDATE_OTXXX
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @enum:
+   *    FT_VALIDATE_OTXXX
+   *
+   * @description:
+   *    A list of bit-field constants used with @FT_OpenType_Validate to
+   *    indicate which OpenType tables should be validated.
+   *
+   * @values:
+   *    FT_VALIDATE_BASE ::
+   *      Validate BASE table.
+   *
+   *    FT_VALIDATE_GDEF ::
+   *      Validate GDEF table.
+   *
+   *    FT_VALIDATE_GPOS ::
+   *      Validate GPOS table.
+   *
+   *    FT_VALIDATE_GSUB ::
+   *      Validate GSUB table.
+   *
+   *    FT_VALIDATE_JSTF ::
+   *      Validate JSTF table.
+   *
+   *    FT_VALIDATE_MATH ::
+   *      Validate MATH table.
+   *
+   *    FT_VALIDATE_OT ::
+   *      Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
+   *
+   */
 #define FT_VALIDATE_BASE  0x0100
 #define FT_VALIDATE_GDEF  0x0200
 #define FT_VALIDATE_GPOS  0x0400
@@ -113,53 +113,54 @@ FT_BEGIN_HEADER
                           FT_VALIDATE_JSTF | \
                           FT_VALIDATE_MATH )
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_OpenType_Validate
-  *
-  * @description:
-  *    Validate various OpenType tables to assure that all offsets and
-  *    indices are valid.  The idea is that a higher-level library that
-  *    actually does the text layout can access those tables without
-  *    error checking (which can be quite time consuming).
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  *    validation_flags ::
-  *       A bit field that specifies the tables to be validated.  See
-  *       @FT_VALIDATE_OTXXX for possible values.
-  *
-  * @output:
-  *    BASE_table ::
-  *       A pointer to the BASE table.
-  *
-  *    GDEF_table ::
-  *       A pointer to the GDEF table.
-  *
-  *    GPOS_table ::
-  *       A pointer to the GPOS table.
-  *
-  *    GSUB_table ::
-  *       A pointer to the GSUB table.
-  *
-  *    JSTF_table ::
-  *       A pointer to the JSTF table.
-  *
-  * @return:
-  *   FreeType error code.  0~means success.
-  *
-  * @note:
-  *   This function only works with OpenType fonts, returning an error
-  *   otherwise.
-  *
-  *   After use, the application should deallocate the five tables with
-  *   @FT_OpenType_Free.  A NULL value indicates that the table either
-  *   doesn't exist in the font, or the application hasn't asked for
-  *   validation.
-  */
+
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_OpenType_Validate
+   *
+   * @description:
+   *    Validate various OpenType tables to assure that all offsets and
+   *    indices are valid.  The idea is that a higher-level library that
+   *    actually does the text layout can access those tables without error
+   *    checking (which can be quite time consuming).
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    validation_flags ::
+   *      A bit field that specifies the tables to be validated.  See
+   *      @FT_VALIDATE_OTXXX for possible values.
+   *
+   * @output:
+   *    BASE_table ::
+   *      A pointer to the BASE table.
+   *
+   *    GDEF_table ::
+   *      A pointer to the GDEF table.
+   *
+   *    GPOS_table ::
+   *      A pointer to the GPOS table.
+   *
+   *    GSUB_table ::
+   *      A pointer to the GSUB table.
+   *
+   *    JSTF_table ::
+   *      A pointer to the JSTF table.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function only works with OpenType fonts, returning an error
+   *   otherwise.
+   *
+   *   After use, the application should deallocate the five tables with
+   *   @FT_OpenType_Free.  A `NULL` value indicates that the table either
+   *   doesn't exist in the font, or the application hasn't asked for
+   *   validation.
+   */
   FT_EXPORT( FT_Error )
   FT_OpenType_Validate( FT_Face    face,
                         FT_UInt    validation_flags,
@@ -169,30 +170,32 @@ FT_BEGIN_HEADER
                         FT_Bytes  *GSUB_table,
                         FT_Bytes  *JSTF_table );
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_OpenType_Free
-  *
-  * @description:
-  *    Free the buffer allocated by OpenType validator.
-  *
-  * @input:
-  *    face ::
-  *       A handle to the input face.
-  *
-  *    table ::
-  *       The pointer to the buffer that is allocated by
-  *       @FT_OpenType_Validate.
-  *
-  * @note:
-  *   This function must be used to free the buffer allocated by
-  *   @FT_OpenType_Validate only.
-  */
+
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_OpenType_Free
+   *
+   * @description:
+   *    Free the buffer allocated by OpenType validator.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    table ::
+   *      The pointer to the buffer that is allocated by
+   *      @FT_OpenType_Validate.
+   *
+   * @note:
+   *   This function must be used to free the buffer allocated by
+   *   @FT_OpenType_Validate only.
+   */
   FT_EXPORT( void )
   FT_OpenType_Free( FT_Face   face,
                     FT_Bytes  table );
 
+
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/ftoutln.h b/thirdparty/freetype/include/freetype/ftoutln.h
index 89389a49b7..75c3d01596 100644
--- a/thirdparty/freetype/include/freetype/ftoutln.h
+++ b/thirdparty/freetype/include/freetype/ftoutln.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftoutln.h                                                              */
-/*                                                                         */
-/*    Support for the FT_Outline type used to store glyph shapes of        */
-/*    most scalable font formats (specification).                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftoutln.h
+ *
+ *   Support for the FT_Outline type used to store glyph shapes of
+ *   most scalable font formats (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTOUTLN_H_
@@ -34,127 +34,131 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    outline_processing                                                 */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Outline Processing                                                 */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Functions to create, transform, and render vectorial glyph images. */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains routines used to create and destroy scalable */
-  /*    glyph images known as `outlines'.  These can also be measured,     */
-  /*    transformed, and converted into bitmaps and pixmaps.               */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_Outline                                                         */
-  /*    FT_Outline_New                                                     */
-  /*    FT_Outline_Done                                                    */
-  /*    FT_Outline_Copy                                                    */
-  /*    FT_Outline_Translate                                               */
-  /*    FT_Outline_Transform                                               */
-  /*    FT_Outline_Embolden                                                */
-  /*    FT_Outline_EmboldenXY                                              */
-  /*    FT_Outline_Reverse                                                 */
-  /*    FT_Outline_Check                                                   */
-  /*                                                                       */
-  /*    FT_Outline_Get_CBox                                                */
-  /*    FT_Outline_Get_BBox                                                */
-  /*                                                                       */
-  /*    FT_Outline_Get_Bitmap                                              */
-  /*    FT_Outline_Render                                                  */
-  /*    FT_Outline_Decompose                                               */
-  /*    FT_Outline_Funcs                                                   */
-  /*    FT_Outline_MoveToFunc                                              */
-  /*    FT_Outline_LineToFunc                                              */
-  /*    FT_Outline_ConicToFunc                                             */
-  /*    FT_Outline_CubicToFunc                                             */
-  /*                                                                       */
-  /*    FT_Orientation                                                     */
-  /*    FT_Outline_Get_Orientation                                         */
-  /*                                                                       */
-  /*    FT_OUTLINE_XXX                                                     */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Decompose                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Walk over an outline's structure to decompose it into individual   */
-  /*    segments and Bezier arcs.  This function also emits `move to'      */
-  /*    operations to indicate the start of new contours in the outline.   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    outline        :: A pointer to the source target.                  */
-  /*                                                                       */
-  /*    func_interface :: A table of `emitters', i.e., function pointers   */
-  /*                      called during decomposition to indicate path     */
-  /*                      operations.                                      */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    user           :: A typeless pointer that is passed to each        */
-  /*                      emitter during the decomposition.  It can be     */
-  /*                      used to store the state during the               */
-  /*                      decomposition.                                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    A contour that contains a single point only is represented by a    */
-  /*    `move to' operation followed by `line to' to the same point.  In   */
-  /*    most cases, it is best to filter this out before using the         */
-  /*    outline for stroking purposes (otherwise it would result in a      */
-  /*    visible dot when round caps are used).                             */
-  /*                                                                       */
-  /*    Similarly, the function returns success for an empty outline also  */
-  /*    (doing nothing, this is, not calling any emitter); if necessary,   */
-  /*    you should filter this out, too.                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   outline_processing
+   *
+   * @title:
+   *   Outline Processing
+   *
+   * @abstract:
+   *   Functions to create, transform, and render vectorial glyph images.
+   *
+   * @description:
+   *   This section contains routines used to create and destroy scalable
+   *   glyph images known as 'outlines'.  These can also be measured,
+   *   transformed, and converted into bitmaps and pixmaps.
+   *
+   * @order:
+   *   FT_Outline
+   *   FT_Outline_New
+   *   FT_Outline_Done
+   *   FT_Outline_Copy
+   *   FT_Outline_Translate
+   *   FT_Outline_Transform
+   *   FT_Outline_Embolden
+   *   FT_Outline_EmboldenXY
+   *   FT_Outline_Reverse
+   *   FT_Outline_Check
+   *
+   *   FT_Outline_Get_CBox
+   *   FT_Outline_Get_BBox
+   *
+   *   FT_Outline_Get_Bitmap
+   *   FT_Outline_Render
+   *   FT_Outline_Decompose
+   *   FT_Outline_Funcs
+   *   FT_Outline_MoveToFunc
+   *   FT_Outline_LineToFunc
+   *   FT_Outline_ConicToFunc
+   *   FT_Outline_CubicToFunc
+   *
+   *   FT_Orientation
+   *   FT_Outline_Get_Orientation
+   *
+   *   FT_OUTLINE_XXX
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Decompose
+   *
+   * @description:
+   *   Walk over an outline's structure to decompose it into individual
+   *   segments and Bezier arcs.  This function also emits 'move to'
+   *   operations to indicate the start of new contours in the outline.
+   *
+   * @input:
+   *   outline ::
+   *     A pointer to the source target.
+   *
+   *   func_interface ::
+   *     A table of 'emitters', i.e., function pointers called during
+   *     decomposition to indicate path operations.
+   *
+   * @inout:
+   *   user ::
+   *     A typeless pointer that is passed to each emitter during the
+   *     decomposition.  It can be used to store the state during the
+   *     decomposition.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   A contour that contains a single point only is represented by a 'move
+   *   to' operation followed by 'line to' to the same point.  In most cases,
+   *   it is best to filter this out before using the outline for stroking
+   *   purposes (otherwise it would result in a visible dot when round caps
+   *   are used).
+   *
+   *   Similarly, the function returns success for an empty outline also
+   *   (doing nothing, this is, not calling any emitter); if necessary, you
+   *   should filter this out, too.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Decompose( FT_Outline*              outline,
                         const FT_Outline_Funcs*  func_interface,
                         void*                    user );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_New                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new outline of a given size.                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library     :: A handle to the library object from where the       */
-  /*                   outline is allocated.  Note however that the new    */
-  /*                   outline will *not* necessarily be *freed*, when     */
-  /*                   destroying the library, by @FT_Done_FreeType.       */
-  /*                                                                       */
-  /*    numPoints   :: The maximum number of points within the outline.    */
-  /*                   Must be smaller than or equal to 0xFFFF (65535).    */
-  /*                                                                       */
-  /*    numContours :: The maximum number of contours within the outline.  */
-  /*                   This value must be in the range 0 to `numPoints'.   */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    anoutline   :: A handle to the new outline.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The reason why this function takes a `library' parameter is simply */
-  /*    to use the library's memory allocator.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_New
+   *
+   * @description:
+   *   Create a new outline of a given size.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the library object from where the outline is allocated.
+   *     Note however that the new outline will **not** necessarily be
+   *     **freed**, when destroying the library, by @FT_Done_FreeType.
+   *
+   *   numPoints ::
+   *     The maximum number of points within the outline.  Must be smaller
+   *     than or equal to 0xFFFF (65535).
+   *
+   *   numContours ::
+   *     The maximum number of contours within the outline.  This value must
+   *     be in the range 0 to `numPoints`.
+   *
+   * @output:
+   *   anoutline ::
+   *     A handle to the new outline.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The reason why this function takes a `library` parameter is simply to
+   *   use the library's memory allocator.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_New( FT_Library   library,
                   FT_UInt      numPoints,
@@ -162,372 +166,378 @@ FT_BEGIN_HEADER
                   FT_Outline  *anoutline );
 
 
-  FT_EXPORT( FT_Error )
-  FT_Outline_New_Internal( FT_Memory    memory,
-                           FT_UInt      numPoints,
-                           FT_Int       numContours,
-                           FT_Outline  *anoutline );
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Done                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroy an outline created with @FT_Outline_New.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle of the library object used to allocate the     */
-  /*               outline.                                                */
-  /*                                                                       */
-  /*    outline :: A pointer to the outline object to be discarded.        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If the outline's `owner' field is not set, only the outline        */
-  /*    descriptor will be released.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Done
+   *
+   * @description:
+   *   Destroy an outline created with @FT_Outline_New.
+   *
+   * @input:
+   *   library ::
+   *     A handle of the library object used to allocate the outline.
+   *
+   *   outline ::
+   *     A pointer to the outline object to be discarded.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   If the outline's 'owner' field is not set, only the outline descriptor
+   *   will be released.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Done( FT_Library   library,
                    FT_Outline*  outline );
 
 
-  FT_EXPORT( FT_Error )
-  FT_Outline_Done_Internal( FT_Memory    memory,
-                            FT_Outline*  outline );
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Check                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Check the contents of an outline descriptor.                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    outline :: A handle to a source outline.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    An empty outline, or an outline with a single point only is also   */
-  /*    valid.                                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Check
+   *
+   * @description:
+   *   Check the contents of an outline descriptor.
+   *
+   * @input:
+   *   outline ::
+   *     A handle to a source outline.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   An empty outline, or an outline with a single point only is also
+   *   valid.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Check( FT_Outline*  outline );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Get_CBox                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return an outline's `control box'.  The control box encloses all   */
-  /*    the outline's points, including Bezier control points.  Though it  */
-  /*    coincides with the exact bounding box for most glyphs, it can be   */
-  /*    slightly larger in some situations (like when rotating an outline  */
-  /*    that contains Bezier outside arcs).                                */
-  /*                                                                       */
-  /*    Computing the control box is very fast, while getting the bounding */
-  /*    box can take much more time as it needs to walk over all segments  */
-  /*    and arcs in the outline.  To get the latter, you can use the       */
-  /*    `ftbbox' component, which is dedicated to this single task.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    outline :: A pointer to the source outline descriptor.             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    acbox   :: The outline's control box.                              */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    See @FT_Glyph_Get_CBox for a discussion of tricky fonts.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Get_CBox
+   *
+   * @description:
+   *   Return an outline's 'control box'.  The control box encloses all the
+   *   outline's points, including Bezier control points.  Though it
+   *   coincides with the exact bounding box for most glyphs, it can be
+   *   slightly larger in some situations (like when rotating an outline that
+   *   contains Bezier outside arcs).
+   *
+   *   Computing the control box is very fast, while getting the bounding box
+   *   can take much more time as it needs to walk over all segments and arcs
+   *   in the outline.  To get the latter, you can use the 'ftbbox'
+   *   component, which is dedicated to this single task.
+   *
+   * @input:
+   *   outline ::
+   *     A pointer to the source outline descriptor.
+   *
+   * @output:
+   *   acbox ::
+   *     The outline's control box.
+   *
+   * @note:
+   *   See @FT_Glyph_Get_CBox for a discussion of tricky fonts.
+   */
   FT_EXPORT( void )
   FT_Outline_Get_CBox( const FT_Outline*  outline,
                        FT_BBox           *acbox );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Translate                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Apply a simple translation to the points of an outline.            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    outline :: A pointer to the target outline descriptor.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    xOffset :: The horizontal offset.                                  */
-  /*                                                                       */
-  /*    yOffset :: The vertical offset.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Translate
+   *
+   * @description:
+   *   Apply a simple translation to the points of an outline.
+   *
+   * @inout:
+   *   outline ::
+   *     A pointer to the target outline descriptor.
+   *
+   * @input:
+   *   xOffset ::
+   *     The horizontal offset.
+   *
+   *   yOffset ::
+   *     The vertical offset.
+   */
   FT_EXPORT( void )
   FT_Outline_Translate( const FT_Outline*  outline,
                         FT_Pos             xOffset,
                         FT_Pos             yOffset );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Copy                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Copy an outline into another one.  Both objects must have the      */
-  /*    same sizes (number of points & number of contours) when this       */
-  /*    function is called.                                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    source :: A handle to the source outline.                          */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    target :: A handle to the target outline.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Copy
+   *
+   * @description:
+   *   Copy an outline into another one.  Both objects must have the same
+   *   sizes (number of points & number of contours) when this function is
+   *   called.
+   *
+   * @input:
+   *   source ::
+   *     A handle to the source outline.
+   *
+   * @output:
+   *   target ::
+   *     A handle to the target outline.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Copy( const FT_Outline*  source,
                    FT_Outline        *target );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Transform                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Apply a simple 2x2 matrix to all of an outline's points.  Useful   */
-  /*    for applying rotations, slanting, flipping, etc.                   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    outline :: A pointer to the target outline descriptor.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    matrix  :: A pointer to the transformation matrix.                 */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You can use @FT_Outline_Translate if you need to translate the     */
-  /*    outline's points.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Transform
+   *
+   * @description:
+   *   Apply a simple 2x2 matrix to all of an outline's points.  Useful for
+   *   applying rotations, slanting, flipping, etc.
+   *
+   * @inout:
+   *   outline ::
+   *     A pointer to the target outline descriptor.
+   *
+   * @input:
+   *   matrix ::
+   *     A pointer to the transformation matrix.
+   *
+   * @note:
+   *   You can use @FT_Outline_Translate if you need to translate the
+   *   outline's points.
+   */
   FT_EXPORT( void )
   FT_Outline_Transform( const FT_Outline*  outline,
                         const FT_Matrix*   matrix );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Embolden                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Embolden an outline.  The new outline will be at most 4~times      */
-  /*    `strength' pixels wider and higher.  You may think of the left and */
-  /*    bottom borders as unchanged.                                       */
-  /*                                                                       */
-  /*    Negative `strength' values to reduce the outline thickness are     */
-  /*    possible also.                                                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    outline  :: A handle to the target outline.                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    strength :: How strong the glyph is emboldened.  Expressed in      */
-  /*                26.6 pixel format.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The used algorithm to increase or decrease the thickness of the    */
-  /*    glyph doesn't change the number of points; this means that certain */
-  /*    situations like acute angles or intersections are sometimes        */
-  /*    handled incorrectly.                                               */
-  /*                                                                       */
-  /*    If you need `better' metrics values you should call                */
-  /*    @FT_Outline_Get_CBox or @FT_Outline_Get_BBox.                      */
-  /*                                                                       */
-  /*    Example call:                                                      */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );                   */
-  /*      if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )            */
-  /*        FT_Outline_Embolden( &face->glyph->outline, strength );        */
-  /*    }                                                                  */
-  /*                                                                       */
-  /*    To get meaningful results, font scaling values must be set with    */
-  /*    functions like @FT_Set_Char_Size before calling FT_Render_Glyph.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Embolden
+   *
+   * @description:
+   *   Embolden an outline.  The new outline will be at most 4~times
+   *   `strength` pixels wider and higher.  You may think of the left and
+   *   bottom borders as unchanged.
+   *
+   *   Negative `strength` values to reduce the outline thickness are
+   *   possible also.
+   *
+   * @inout:
+   *   outline ::
+   *     A handle to the target outline.
+   *
+   * @input:
+   *   strength ::
+   *     How strong the glyph is emboldened.  Expressed in 26.6 pixel format.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The used algorithm to increase or decrease the thickness of the glyph
+   *   doesn't change the number of points; this means that certain
+   *   situations like acute angles or intersections are sometimes handled
+   *   incorrectly.
+   *
+   *   If you need 'better' metrics values you should call
+   *   @FT_Outline_Get_CBox or @FT_Outline_Get_BBox.
+   *
+   *   To get meaningful results, font scaling values must be set with
+   *   functions like @FT_Set_Char_Size before calling FT_Render_Glyph.
+   *
+   * @example:
+   *   ```
+   *     FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );
+   *
+   *     if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
+   *       FT_Outline_Embolden( &face->glyph->outline, strength );
+   *   ```
+   *
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Embolden( FT_Outline*  outline,
                        FT_Pos       strength );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_EmboldenXY                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Embolden an outline.  The new outline will be `xstrength' pixels   */
-  /*    wider and `ystrength' pixels higher.  Otherwise, it is similar to  */
-  /*    @FT_Outline_Embolden, which uses the same strength in both         */
-  /*    directions.                                                        */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.4.10                                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_EmboldenXY
+   *
+   * @description:
+   *   Embolden an outline.  The new outline will be `xstrength` pixels wider
+   *   and `ystrength` pixels higher.  Otherwise, it is similar to
+   *   @FT_Outline_Embolden, which uses the same strength in both directions.
+   *
+   * @since:
+   *   2.4.10
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_EmboldenXY( FT_Outline*  outline,
                          FT_Pos       xstrength,
                          FT_Pos       ystrength );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Reverse                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Reverse the drawing direction of an outline.  This is used to      */
-  /*    ensure consistent fill conventions for mirrored glyphs.            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    outline :: A pointer to the target outline descriptor.             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in     */
-  /*    the outline's `flags' field.                                       */
-  /*                                                                       */
-  /*    It shouldn't be used by a normal client application, unless it     */
-  /*    knows what it is doing.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Reverse
+   *
+   * @description:
+   *   Reverse the drawing direction of an outline.  This is used to ensure
+   *   consistent fill conventions for mirrored glyphs.
+   *
+   * @inout:
+   *   outline ::
+   *     A pointer to the target outline descriptor.
+   *
+   * @note:
+   *   This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in the
+   *   outline's `flags` field.
+   *
+   *   It shouldn't be used by a normal client application, unless it knows
+   *   what it is doing.
+   */
   FT_EXPORT( void )
   FT_Outline_Reverse( FT_Outline*  outline );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Get_Bitmap                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Render an outline within a bitmap.  The outline's image is simply  */
-  /*    OR-ed to the target bitmap.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to a FreeType library object.                  */
-  /*                                                                       */
-  /*    outline :: A pointer to the source outline descriptor.             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    abitmap :: A pointer to the target bitmap descriptor.              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function does NOT CREATE the bitmap, it only renders an       */
-  /*    outline image within the one you pass to it!  Consequently, the    */
-  /*    various fields in `abitmap' should be set accordingly.             */
-  /*                                                                       */
-  /*    It will use the raster corresponding to the default glyph format.  */
-  /*                                                                       */
-  /*    The value of the `num_grays' field in `abitmap' is ignored.  If    */
-  /*    you select the gray-level rasterizer, and you want less than 256   */
-  /*    gray levels, you have to use @FT_Outline_Render directly.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Get_Bitmap
+   *
+   * @description:
+   *   Render an outline within a bitmap.  The outline's image is simply
+   *   OR-ed to the target bitmap.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a FreeType library object.
+   *
+   *   outline ::
+   *     A pointer to the source outline descriptor.
+   *
+   * @inout:
+   *   abitmap ::
+   *     A pointer to the target bitmap descriptor.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   This function does **not create** the bitmap, it only renders an
+   *   outline image within the one you pass to it!  Consequently, the
+   *   various fields in `abitmap` should be set accordingly.
+   *
+   *   It will use the raster corresponding to the default glyph format.
+   *
+   *   The value of the `num_grays` field in `abitmap` is ignored.  If you
+   *   select the gray-level rasterizer, and you want less than 256 gray
+   *   levels, you have to use @FT_Outline_Render directly.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Get_Bitmap( FT_Library        library,
                          FT_Outline*       outline,
                          const FT_Bitmap  *abitmap );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Render                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Render an outline within a bitmap using the current scan-convert.  */
-  /*    This function uses an @FT_Raster_Params structure as an argument,  */
-  /*    allowing advanced features like direct composition, translucency,  */
-  /*    etc.                                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to a FreeType library object.                  */
-  /*                                                                       */
-  /*    outline :: A pointer to the source outline descriptor.             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    params  :: A pointer to an @FT_Raster_Params structure used to     */
-  /*               describe the rendering operation.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You should know what you are doing and how @FT_Raster_Params works */
-  /*    to use this function.                                              */
-  /*                                                                       */
-  /*    The field `params.source' will be set to `outline' before the scan */
-  /*    converter is called, which means that the value you give to it is  */
-  /*    actually ignored.                                                  */
-  /*                                                                       */
-  /*    The gray-level rasterizer always uses 256 gray levels.  If you     */
-  /*    want less gray levels, you have to provide your own span callback. */
-  /*    See the @FT_RASTER_FLAG_DIRECT value of the `flags' field in the   */
-  /*    @FT_Raster_Params structure for more details.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Render
+   *
+   * @description:
+   *   Render an outline within a bitmap using the current scan-convert.
+   *   This function uses an @FT_Raster_Params structure as an argument,
+   *   allowing advanced features like direct composition, translucency, etc.
+   *
+   * @input:
+   *   library ::
+   *     A handle to a FreeType library object.
+   *
+   *   outline ::
+   *     A pointer to the source outline descriptor.
+   *
+   * @inout:
+   *   params ::
+   *     A pointer to an @FT_Raster_Params structure used to describe the
+   *     rendering operation.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   You should know what you are doing and how @FT_Raster_Params works to
+   *   use this function.
+   *
+   *   The field `params.source` will be set to `outline` before the scan
+   *   converter is called, which means that the value you give to it is
+   *   actually ignored.
+   *
+   *   The gray-level rasterizer always uses 256 gray levels.  If you want
+   *   less gray levels, you have to provide your own span callback.  See the
+   *   @FT_RASTER_FLAG_DIRECT value of the `flags` field in the
+   *   @FT_Raster_Params structure for more details.
+   */
   FT_EXPORT( FT_Error )
   FT_Outline_Render( FT_Library         library,
                      FT_Outline*        outline,
                      FT_Raster_Params*  params );
 
 
- /**************************************************************************
-  *
-  * @enum:
-  *   FT_Orientation
-  *
-  * @description:
-  *   A list of values used to describe an outline's contour orientation.
-  *
-  *   The TrueType and PostScript specifications use different conventions
-  *   to determine whether outline contours should be filled or unfilled.
-  *
-  * @values:
-  *   FT_ORIENTATION_TRUETYPE ::
-  *     According to the TrueType specification, clockwise contours must
-  *     be filled, and counter-clockwise ones must be unfilled.
-  *
-  *   FT_ORIENTATION_POSTSCRIPT ::
-  *     According to the PostScript specification, counter-clockwise contours
-  *     must be filled, and clockwise ones must be unfilled.
-  *
-  *   FT_ORIENTATION_FILL_RIGHT ::
-  *     This is identical to @FT_ORIENTATION_TRUETYPE, but is used to
-  *     remember that in TrueType, everything that is to the right of
-  *     the drawing direction of a contour must be filled.
-  *
-  *   FT_ORIENTATION_FILL_LEFT ::
-  *     This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to
-  *     remember that in PostScript, everything that is to the left of
-  *     the drawing direction of a contour must be filled.
-  *
-  *   FT_ORIENTATION_NONE ::
-  *     The orientation cannot be determined.  That is, different parts of
-  *     the glyph have different orientation.
-  *
-  */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Orientation
+   *
+   * @description:
+   *   A list of values used to describe an outline's contour orientation.
+   *
+   *   The TrueType and PostScript specifications use different conventions
+   *   to determine whether outline contours should be filled or unfilled.
+   *
+   * @values:
+   *   FT_ORIENTATION_TRUETYPE ::
+   *     According to the TrueType specification, clockwise contours must be
+   *     filled, and counter-clockwise ones must be unfilled.
+   *
+   *   FT_ORIENTATION_POSTSCRIPT ::
+   *     According to the PostScript specification, counter-clockwise
+   *     contours must be filled, and clockwise ones must be unfilled.
+   *
+   *   FT_ORIENTATION_FILL_RIGHT ::
+   *     This is identical to @FT_ORIENTATION_TRUETYPE, but is used to
+   *     remember that in TrueType, everything that is to the right of the
+   *     drawing direction of a contour must be filled.
+   *
+   *   FT_ORIENTATION_FILL_LEFT ::
+   *     This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to
+   *     remember that in PostScript, everything that is to the left of the
+   *     drawing direction of a contour must be filled.
+   *
+   *   FT_ORIENTATION_NONE ::
+   *     The orientation cannot be determined.  That is, different parts of
+   *     the glyph have different orientation.
+   *
+   */
   typedef enum  FT_Orientation_
   {
     FT_ORIENTATION_TRUETYPE   = 0,
@@ -539,33 +549,34 @@ FT_BEGIN_HEADER
   } FT_Orientation;
 
 
- /**************************************************************************
-  *
-  * @function:
-  *   FT_Outline_Get_Orientation
-  *
-  * @description:
-  *   This function analyzes a glyph outline and tries to compute its
-  *   fill orientation (see @FT_Orientation).  This is done by integrating
-  *   the total area covered by the outline. The positive integral
-  *   corresponds to the clockwise orientation and @FT_ORIENTATION_POSTSCRIPT
-  *   is returned. The negative integral corresponds to the counter-clockwise
-  *   orientation and @FT_ORIENTATION_TRUETYPE is returned.
-  *
-  *   Note that this will return @FT_ORIENTATION_TRUETYPE for empty
-  *   outlines.
-  *
-  * @input:
-  *   outline ::
-  *     A handle to the source outline.
-  *
-  * @return:
-  *   The orientation.
-  *
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Outline_Get_Orientation
+   *
+   * @description:
+   *   This function analyzes a glyph outline and tries to compute its fill
+   *   orientation (see @FT_Orientation).  This is done by integrating the
+   *   total area covered by the outline. The positive integral corresponds
+   *   to the clockwise orientation and @FT_ORIENTATION_POSTSCRIPT is
+   *   returned. The negative integral corresponds to the counter-clockwise
+   *   orientation and @FT_ORIENTATION_TRUETYPE is returned.
+   *
+   *   Note that this will return @FT_ORIENTATION_TRUETYPE for empty
+   *   outlines.
+   *
+   * @input:
+   *   outline ::
+   *     A handle to the source outline.
+   *
+   * @return:
+   *   The orientation.
+   *
+   */
   FT_EXPORT( FT_Orientation )
   FT_Outline_Get_Orientation( FT_Outline*  outline );
 
+
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/ftparams.h b/thirdparty/freetype/include/freetype/ftparams.h
index 5a9006c505..c374ee2f2f 100644
--- a/thirdparty/freetype/include/freetype/ftparams.h
+++ b/thirdparty/freetype/include/freetype/ftparams.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftparams.h                                                             */
-/*                                                                         */
-/*    FreeType API for possible FT_Parameter tags (specification only).    */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftparams.h
+ *
+ *   FreeType API for possible FT_Parameter tags (specification only).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTPARAMS_H_
@@ -51,16 +51,16 @@ FT_BEGIN_HEADER
    */
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
-   * @constant:
+   * @enum:
    *   FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
    *
    * @description:
    *   A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
-   *   family names in the `name' table (introduced in OpenType version
-   *   1.4).  Use this for backward compatibility with legacy systems that
-   *   have a four-faces-per-family restriction.
+   *   family names in the 'name' table (introduced in OpenType version 1.4).
+   *   Use this for backward compatibility with legacy systems that have a
+   *   four-faces-per-family restriction.
    *
    * @since:
    *   2.8
@@ -75,14 +75,14 @@ FT_BEGIN_HEADER
           FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
-   * @constant:
+   * @enum:
    *   FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
    *
    * @description:
    *   A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
-   *   subfamily names in the `name' table (introduced in OpenType version
+   *   subfamily names in the 'name' table (introduced in OpenType version
    *   1.4).  Use this for backward compatibility with legacy systems that
    *   have a four-faces-per-family restriction.
    *
@@ -99,9 +99,9 @@ FT_BEGIN_HEADER
           FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
 
 
-  /***************************************************************************
+  /**************************************************************************
    *
-   * @constant:
+   * @enum:
    *   FT_PARAM_TAG_INCREMENTAL
    *
    * @description:
@@ -115,14 +115,14 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   * @constant:
+   * @enum:
    *   FT_PARAM_TAG_LCD_FILTER_WEIGHTS
    *
    * @description:
    *   An @FT_Parameter tag to be used with @FT_Face_Properties.  The
    *   corresponding argument specifies the five LCD filter weights for a
-   *   given face (if using @FT_LOAD_TARGET_LCD, for example), overriding
-   *   the global default values or the values set up with
+   *   given face (if using @FT_LOAD_TARGET_LCD, for example), overriding the
+   *   global default values or the values set up with
    *   @FT_Library_SetLcdFilterWeights.
    *
    * @since:
@@ -135,14 +135,13 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   * @constant:
+   * @enum:
    *   FT_PARAM_TAG_RANDOM_SEED
    *
    * @description:
    *   An @FT_Parameter tag to be used with @FT_Face_Properties.  The
    *   corresponding 32bit signed integer argument overrides the font
-   *   driver's random seed value with a face-specific one; see
-   *   @random-seed.
+   *   driver's random seed value with a face-specific one; see @random-seed.
    *
    * @since:
    *   2.8
@@ -154,7 +153,7 @@ FT_BEGIN_HEADER
 
   /**************************************************************************
    *
-   * @constant:
+   * @enum:
    *   FT_PARAM_TAG_STEM_DARKENING
    *
    * @description:
@@ -163,10 +162,10 @@ FT_BEGIN_HEADER
    *   darkening, overriding the global default values or the values set up
    *   with @FT_Property_Set (see @no-stem-darkening).
    *
-   *   This is a passive setting that only takes effect if the font driver
-   *   or autohinter honors it, which the CFF, Type~1, and CID drivers
-   *   always do, but the autohinter only in `light' hinting mode (as of
-   *   version 2.9).
+   *   This is a passive setting that only takes effect if the font driver or
+   *   autohinter honors it, which the CFF, Type~1, and CID drivers always
+   *   do, but the autohinter only in 'light' hinting mode (as of version
+   *   2.9).
    *
    * @since:
    *   2.8
@@ -176,19 +175,19 @@ FT_BEGIN_HEADER
           FT_MAKE_TAG( 'd', 'a', 'r', 'k' )
 
 
- /***************************************************************************
-  *
-  * @constant:
-  *   FT_PARAM_TAG_UNPATENTED_HINTING
-  *
-  * @description:
-  *   Deprecated, no effect.
-  *
-  *   Previously: A constant used as the tag of an @FT_Parameter structure to
-  *   indicate that unpatented methods only should be used by the TrueType
-  *   bytecode interpreter for a typeface opened by @FT_Open_Face.
-  *
-  */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_PARAM_TAG_UNPATENTED_HINTING
+   *
+   * @description:
+   *   Deprecated, no effect.
+   *
+   *   Previously: A constant used as the tag of an @FT_Parameter structure
+   *   to indicate that unpatented methods only should be used by the
+   *   TrueType bytecode interpreter for a typeface opened by @FT_Open_Face.
+   *
+   */
 #define FT_PARAM_TAG_UNPATENTED_HINTING \
           FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
 
diff --git a/thirdparty/freetype/include/freetype/ftpcfdrv.h b/thirdparty/freetype/include/freetype/ftpcfdrv.h
deleted file mode 100644
index 6622c936fb..0000000000
--- a/thirdparty/freetype/include/freetype/ftpcfdrv.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpcfdrv.h                                                             */
-/*                                                                         */
-/*    FreeType API for controlling the PCF driver (specification only).    */
-/*                                                                         */
-/*  Copyright 2017 by                                                      */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef FTPCFDRV_H_
-#define FTPCFDRV_H_
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
-  /**************************************************************************
-   *
-   * @section:
-   *   pcf_driver
-   *
-   * @title:
-   *   The PCF driver
-   *
-   * @abstract:
-   *   Controlling the PCF driver module.
-   *
-   * @description:
-   *   While FreeType's PCF driver doesn't expose API functions by itself,
-   *   it is possible to control its behaviour with @FT_Property_Set and
-   *   @FT_Property_Get.  Right now, there is a single property
-   *   `no-long-family-names' available if FreeType is compiled with
-   *   PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
-   *
-   *   The PCF driver's module name is `pcf'.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   no-long-family-names
-   *
-   * @description:
-   *   If PCF_CONFIG_OPTION_LONG_FAMILY_NAMES is active while compiling
-   *   FreeType, the PCF driver constructs long family names.
-   *
-   *   There are many PCF fonts just called `Fixed' which look completely
-   *   different, and which have nothing to do with each other.  When
-   *   selecting `Fixed' in KDE or Gnome one gets results that appear rather
-   *   random, the style changes often if one changes the size and one
-   *   cannot select some fonts at all.  The improve this situation, the PCF
-   *   module prepends the foundry name (plus a space) to the family name. 
-   *   It also checks whether there are `wide' characters; all put together,
-   *   family names like `Sony Fixed' or `Misc Fixed Wide' are constructed.
-   *
-   *   If `no-long-family-names' is set, this feature gets switched off.
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Bool     no_long_family_names = TRUE;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "pcf",
-   *                               "no-long-family-names",
-   *                               &no_long_family_names );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values 1 and 0 for `on' and `off', respectively).
-   *
-   */
-
-
-FT_END_HEADER
-
-
-#endif /* FTPCFDRV_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/ftpfr.h b/thirdparty/freetype/include/freetype/ftpfr.h
index a69cc482dc..b4eca76eb7 100644
--- a/thirdparty/freetype/include/freetype/ftpfr.h
+++ b/thirdparty/freetype/include/freetype/ftpfr.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpfr.h                                                                */
-/*                                                                         */
-/*    FreeType API for accessing PFR-specific data (specification only).   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftpfr.h
+ *
+ *   FreeType API for accessing PFR-specific data (specification only).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTPFR_H_
@@ -32,60 +32,61 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    pfr_fonts                                                          */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    PFR Fonts                                                          */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    PFR/TrueDoc specific API.                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of PFR-specific functions.   */
-  /*                                                                       */
-  /*************************************************************************/
-
-
- /**********************************************************************
-  *
-  * @function:
-  *    FT_Get_PFR_Metrics
-  *
-  * @description:
-  *    Return the outline and metrics resolutions of a given PFR face.
-  *
-  * @input:
-  *    face :: Handle to the input face.  It can be a non-PFR face.
-  *
-  * @output:
-  *    aoutline_resolution ::
-  *      Outline resolution.  This is equivalent to `face->units_per_EM'
-  *      for non-PFR fonts.  Optional (parameter can be NULL).
-  *
-  *    ametrics_resolution ::
-  *      Metrics resolution.  This is equivalent to `outline_resolution'
-  *      for non-PFR fonts.  Optional (parameter can be NULL).
-  *
-  *    ametrics_x_scale ::
-  *      A 16.16 fixed-point number used to scale distance expressed
-  *      in metrics units to device subpixels.  This is equivalent to
-  *      `face->size->x_scale', but for metrics only.  Optional (parameter
-  *      can be NULL).
-  *
-  *    ametrics_y_scale ::
-  *      Same as `ametrics_x_scale' but for the vertical direction.
-  *      optional (parameter can be NULL).
-  *
-  * @return:
-  *    FreeType error code.  0~means success.
-  *
-  * @note:
-  *   If the input face is not a PFR, this function will return an error.
-  *   However, in all cases, it will return valid values.
-  */
+  /**************************************************************************
+   *
+   * @section:
+   *   pfr_fonts
+   *
+   * @title:
+   *   PFR Fonts
+   *
+   * @abstract:
+   *   PFR/TrueDoc-specific API.
+   *
+   * @description:
+   *   This section contains the declaration of PFR-specific functions.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_Get_PFR_Metrics
+   *
+   * @description:
+   *    Return the outline and metrics resolutions of a given PFR face.
+   *
+   * @input:
+   *    face ::
+   *      Handle to the input face.  It can be a non-PFR face.
+   *
+   * @output:
+   *    aoutline_resolution ::
+   *      Outline resolution.  This is equivalent to `face->units_per_EM` for
+   *      non-PFR fonts.  Optional (parameter can be `NULL`).
+   *
+   *    ametrics_resolution ::
+   *      Metrics resolution.  This is equivalent to `outline_resolution` for
+   *      non-PFR fonts.  Optional (parameter can be `NULL`).
+   *
+   *    ametrics_x_scale ::
+   *      A 16.16 fixed-point number used to scale distance expressed in
+   *      metrics units to device subpixels.  This is equivalent to
+   *      `face->size->x_scale`, but for metrics only.  Optional (parameter
+   *      can be `NULL`).
+   *
+   *    ametrics_y_scale ::
+   *      Same as `ametrics_x_scale` but for the vertical direction.
+   *      optional (parameter can be `NULL`).
+   *
+   * @return:
+   *    FreeType error code.  0~means success.
+   *
+   * @note:
+   *   If the input face is not a PFR, this function will return an error.
+   *   However, in all cases, it will return valid values.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_PFR_Metrics( FT_Face    face,
                       FT_UInt   *aoutline_resolution,
@@ -94,37 +95,41 @@ FT_BEGIN_HEADER
                       FT_Fixed  *ametrics_y_scale );
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_Get_PFR_Kerning
-  *
-  * @description:
-  *    Return the kerning pair corresponding to two glyphs in a PFR face.
-  *    The distance is expressed in metrics units, unlike the result of
-  *    @FT_Get_Kerning.
-  *
-  * @input:
-  *    face  :: A handle to the input face.
-  *
-  *    left  :: Index of the left glyph.
-  *
-  *    right :: Index of the right glyph.
-  *
-  * @output:
-  *    avector :: A kerning vector.
-  *
-  * @return:
-  *    FreeType error code.  0~means success.
-  *
-  * @note:
-  *    This function always return distances in original PFR metrics
-  *    units.  This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED
-  *    mode, which always returns distances converted to outline units.
-  *
-  *    You can use the value of the `x_scale' and `y_scale' parameters
-  *    returned by @FT_Get_PFR_Metrics to scale these to device subpixels.
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_Get_PFR_Kerning
+   *
+   * @description:
+   *    Return the kerning pair corresponding to two glyphs in a PFR face.
+   *    The distance is expressed in metrics units, unlike the result of
+   *    @FT_Get_Kerning.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    left ::
+   *      Index of the left glyph.
+   *
+   *    right ::
+   *      Index of the right glyph.
+   *
+   * @output:
+   *    avector ::
+   *      A kerning vector.
+   *
+   * @return:
+   *    FreeType error code.  0~means success.
+   *
+   * @note:
+   *    This function always return distances in original PFR metrics units.
+   *    This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED mode,
+   *    which always returns distances converted to outline units.
+   *
+   *    You can use the value of the `x_scale` and `y_scale` parameters
+   *    returned by @FT_Get_PFR_Metrics to scale these to device subpixels.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_PFR_Kerning( FT_Face     face,
                       FT_UInt     left,
@@ -132,30 +137,33 @@ FT_BEGIN_HEADER
                       FT_Vector  *avector );
 
 
- /**********************************************************************
-  *
-  * @function:
-  *    FT_Get_PFR_Advance
-  *
-  * @description:
-  *    Return a given glyph advance, expressed in original metrics units,
-  *    from a PFR font.
-  *
-  * @input:
-  *    face   :: A handle to the input face.
-  *
-  *    gindex :: The glyph index.
-  *
-  * @output:
-  *    aadvance :: The glyph advance in metrics units.
-  *
-  * @return:
-  *    FreeType error code.  0~means success.
-  *
-  * @note:
-  *    You can use the `x_scale' or `y_scale' results of @FT_Get_PFR_Metrics
-  *    to convert the advance to device subpixels (i.e., 1/64th of pixels).
-  */
+  /**************************************************************************
+   *
+   * @function:
+   *    FT_Get_PFR_Advance
+   *
+   * @description:
+   *    Return a given glyph advance, expressed in original metrics units,
+   *    from a PFR font.
+   *
+   * @input:
+   *    face ::
+   *      A handle to the input face.
+   *
+   *    gindex ::
+   *      The glyph index.
+   *
+   * @output:
+   *    aadvance ::
+   *      The glyph advance in metrics units.
+   *
+   * @return:
+   *    FreeType error code.  0~means success.
+   *
+   * @note:
+   *    You can use the `x_scale` or `y_scale` results of @FT_Get_PFR_Metrics
+   *    to convert the advance to device subpixels (i.e., 1/64th of pixels).
+   */
   FT_EXPORT( FT_Error )
   FT_Get_PFR_Advance( FT_Face   face,
                       FT_UInt   gindex,
diff --git a/thirdparty/freetype/include/freetype/ftrender.h b/thirdparty/freetype/include/freetype/ftrender.h
index fa8ad22b98..a01c774272 100644
--- a/thirdparty/freetype/include/freetype/ftrender.h
+++ b/thirdparty/freetype/include/freetype/ftrender.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftrender.h                                                             */
-/*                                                                         */
-/*    FreeType renderer modules public interface (specification).          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftrender.h
+ *
+ *   FreeType renderer modules public interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTRENDER_H_
@@ -28,12 +28,12 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    module_management                                                  */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   module_management
+   *
+   */
 
 
   /* create a new glyph object */
@@ -116,32 +116,38 @@ FT_BEGIN_HEADER
 #define FTRenderer_setMode  FT_Renderer_SetModeFunc
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Renderer_Class                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The renderer module class descriptor.                              */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root            :: The root @FT_Module_Class fields.               */
-  /*                                                                       */
-  /*    glyph_format    :: The glyph image format this renderer handles.   */
-  /*                                                                       */
-  /*    render_glyph    :: A method used to render the image that is in a  */
-  /*                       given glyph slot into a bitmap.                 */
-  /*                                                                       */
-  /*    transform_glyph :: A method used to transform the image that is in */
-  /*                       a given glyph slot.                             */
-  /*                                                                       */
-  /*    get_glyph_cbox  :: A method used to access the glyph's cbox.       */
-  /*                                                                       */
-  /*    set_mode        :: A method used to pass additional parameters.    */
-  /*                                                                       */
-  /*    raster_class    :: For @FT_GLYPH_FORMAT_OUTLINE renderers only.    */
-  /*                       This is a pointer to its raster's class.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Renderer_Class
+   *
+   * @description:
+   *   The renderer module class descriptor.
+   *
+   * @fields:
+   *   root ::
+   *     The root @FT_Module_Class fields.
+   *
+   *   glyph_format ::
+   *     The glyph image format this renderer handles.
+   *
+   *   render_glyph ::
+   *     A method used to render the image that is in a given glyph slot into
+   *     a bitmap.
+   *
+   *   transform_glyph ::
+   *     A method used to transform the image that is in a given glyph slot.
+   *
+   *   get_glyph_cbox ::
+   *     A method used to access the glyph's cbox.
+   *
+   *   set_mode ::
+   *     A method used to pass additional parameters.
+   *
+   *   raster_class ::
+   *     For @FT_GLYPH_FORMAT_OUTLINE renderers only.  This is a pointer to
+   *     its raster's class.
+   */
   typedef struct  FT_Renderer_Class_
   {
     FT_Module_Class            root;
@@ -158,64 +164,70 @@ FT_BEGIN_HEADER
   } FT_Renderer_Class;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Renderer                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the current renderer for a given glyph format.            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library :: A handle to the library object.                         */
-  /*                                                                       */
-  /*    format  :: The glyph format.                                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A renderer handle.  0~if none found.                               */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    An error will be returned if a module already exists by that name, */
-  /*    or if the module requires a version of FreeType that is too great. */
-  /*                                                                       */
-  /*    To add a new renderer, simply use @FT_Add_Module.  To retrieve a   */
-  /*    renderer by its name, use @FT_Get_Module.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Renderer
+   *
+   * @description:
+   *   Retrieve the current renderer for a given glyph format.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the library object.
+   *
+   *   format ::
+   *     The glyph format.
+   *
+   * @return:
+   *   A renderer handle.  0~if none found.
+   *
+   * @note:
+   *   An error will be returned if a module already exists by that name, or
+   *   if the module requires a version of FreeType that is too great.
+   *
+   *   To add a new renderer, simply use @FT_Add_Module.  To retrieve a
+   *   renderer by its name, use @FT_Get_Module.
+   */
   FT_EXPORT( FT_Renderer )
   FT_Get_Renderer( FT_Library       library,
                    FT_Glyph_Format  format );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Set_Renderer                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set the current renderer to use, and set additional mode.          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    library    :: A handle to the library object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    renderer   :: A handle to the renderer object.                     */
-  /*                                                                       */
-  /*    num_params :: The number of additional parameters.                 */
-  /*                                                                       */
-  /*    parameters :: Additional parameters.                               */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    In case of success, the renderer will be used to convert glyph     */
-  /*    images in the renderer's known format into bitmaps.                */
-  /*                                                                       */
-  /*    This doesn't change the current renderer for other formats.        */
-  /*                                                                       */
-  /*    Currently, no FreeType renderer module uses `parameters'; you      */
-  /*    should thus always pass NULL as the value.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Set_Renderer
+   *
+   * @description:
+   *   Set the current renderer to use, and set additional mode.
+   *
+   * @inout:
+   *   library ::
+   *     A handle to the library object.
+   *
+   * @input:
+   *   renderer ::
+   *     A handle to the renderer object.
+   *
+   *   num_params ::
+   *     The number of additional parameters.
+   *
+   *   parameters ::
+   *     Additional parameters.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   In case of success, the renderer will be used to convert glyph images
+   *   in the renderer's known format into bitmaps.
+   *
+   *   This doesn't change the current renderer for other formats.
+   *
+   *   Currently, no FreeType renderer module uses `parameters`; you should
+   *   thus always pass `NULL` as the value.
+   */
   FT_EXPORT( FT_Error )
   FT_Set_Renderer( FT_Library     library,
                    FT_Renderer    renderer,
diff --git a/thirdparty/freetype/include/freetype/ftsizes.h b/thirdparty/freetype/include/freetype/ftsizes.h
index 72cb08bf2a..6c63cef2bf 100644
--- a/thirdparty/freetype/include/freetype/ftsizes.h
+++ b/thirdparty/freetype/include/freetype/ftsizes.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsizes.h                                                              */
-/*                                                                         */
-/*    FreeType size objects management (specification).                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Typical application would normally not need to use these functions.   */
-  /* However, they have been placed in a public API for the rare cases     */
-  /* where they are needed.                                                */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftsizes.h
+ *
+ *   FreeType size objects management (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * Typical application would normally not need to use these functions.
+   * However, they have been placed in a public API for the rare cases where
+   * they are needed.
+   *
+   */
 
 
 #ifndef FTSIZES_H_
@@ -42,109 +42,110 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    sizes_management                                                   */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Size Management                                                    */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Managing multiple sizes per face.                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    When creating a new face object (e.g., with @FT_New_Face), an      */
-  /*    @FT_Size object is automatically created and used to store all     */
-  /*    pixel-size dependent information, available in the `face->size'    */
-  /*    field.                                                             */
-  /*                                                                       */
-  /*    It is however possible to create more sizes for a given face,      */
-  /*    mostly in order to manage several character pixel sizes of the     */
-  /*    same font family and style.  See @FT_New_Size and @FT_Done_Size.   */
-  /*                                                                       */
-  /*    Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only           */
-  /*    modify the contents of the current `active' size; you thus need    */
-  /*    to use @FT_Activate_Size to change it.                             */
-  /*                                                                       */
-  /*    99% of applications won't need the functions provided here,        */
-  /*    especially if they use the caching sub-system, so be cautious      */
-  /*    when using these.                                                  */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Size                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new size object from a given face object.                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to a parent face object.                          */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    asize :: A handle to a new size object.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You need to call @FT_Activate_Size in order to select the new size */
-  /*    for upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,      */
-  /*    @FT_Load_Glyph, @FT_Load_Char, etc.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   sizes_management
+   *
+   * @title:
+   *   Size Management
+   *
+   * @abstract:
+   *   Managing multiple sizes per face.
+   *
+   * @description:
+   *   When creating a new face object (e.g., with @FT_New_Face), an @FT_Size
+   *   object is automatically created and used to store all pixel-size
+   *   dependent information, available in the `face->size` field.
+   *
+   *   It is however possible to create more sizes for a given face, mostly
+   *   in order to manage several character pixel sizes of the same font
+   *   family and style.  See @FT_New_Size and @FT_Done_Size.
+   *
+   *   Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only modify the
+   *   contents of the current 'active' size; you thus need to use
+   *   @FT_Activate_Size to change it.
+   *
+   *   99% of applications won't need the functions provided here, especially
+   *   if they use the caching sub-system, so be cautious when using these.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Size
+   *
+   * @description:
+   *   Create a new size object from a given face object.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a parent face object.
+   *
+   * @output:
+   *   asize ::
+   *     A handle to a new size object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   You need to call @FT_Activate_Size in order to select the new size for
+   *   upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,
+   *   @FT_Load_Glyph, @FT_Load_Char, etc.
+   */
   FT_EXPORT( FT_Error )
   FT_New_Size( FT_Face   face,
                FT_Size*  size );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_Size                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Discard a given size object.  Note that @FT_Done_Face              */
-  /*    automatically discards all size objects allocated with             */
-  /*    @FT_New_Size.                                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    size :: A handle to a target size object.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_Size
+   *
+   * @description:
+   *   Discard a given size object.  Note that @FT_Done_Face automatically
+   *   discards all size objects allocated with @FT_New_Size.
+   *
+   * @input:
+   *   size ::
+   *     A handle to a target size object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   */
   FT_EXPORT( FT_Error )
   FT_Done_Size( FT_Size  size );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Activate_Size                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Even though it is possible to create several size objects for a    */
-  /*    given face (see @FT_New_Size for details), functions like          */
-  /*    @FT_Load_Glyph or @FT_Load_Char only use the one that has been     */
-  /*    activated last to determine the `current character pixel size'.    */
-  /*                                                                       */
-  /*    This function can be used to `activate' a previously created size  */
-  /*    object.                                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    size :: A handle to a target size object.                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    If `face' is the size's parent face object, this function changes  */
-  /*    the value of `face->size' to the input size handle.                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Activate_Size
+   *
+   * @description:
+   *   Even though it is possible to create several size objects for a given
+   *   face (see @FT_New_Size for details), functions like @FT_Load_Glyph or
+   *   @FT_Load_Char only use the one that has been activated last to
+   *   determine the 'current character pixel size'.
+   *
+   *   This function can be used to 'activate' a previously created size
+   *   object.
+   *
+   * @input:
+   *   size ::
+   *     A handle to a target size object.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   If `face` is the size's parent face object, this function changes the
+   *   value of `face->size` to the input size handle.
+   */
   FT_EXPORT( FT_Error )
   FT_Activate_Size( FT_Size  size );
 
diff --git a/thirdparty/freetype/include/freetype/ftsnames.h b/thirdparty/freetype/include/freetype/ftsnames.h
index 8eb8d70ff7..4d43602a42 100644
--- a/thirdparty/freetype/include/freetype/ftsnames.h
+++ b/thirdparty/freetype/include/freetype/ftsnames.h
@@ -1,22 +1,22 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsnames.h                                                             */
-/*                                                                         */
-/*    Simple interface to access SFNT `name' tables (which are used        */
-/*    to hold font names, copyright info, notices, etc.) (specification).  */
-/*                                                                         */
-/*    This is _not_ used to retrieve glyph names!                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsnames.h
+ *
+ *   Simple interface to access SFNT 'name' tables (which are used
+ *   to hold font names, copyright info, notices, etc.) (specification).
+ *
+ *   This is _not_ used to retrieve glyph names!
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTSNAMES_H_
@@ -37,72 +37,74 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    sfnt_names                                                         */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    SFNT Names                                                         */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Access the names embedded in TrueType and OpenType files.          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The TrueType and OpenType specifications allow the inclusion of    */
-  /*    a special names table (`name') in font files.  This table contains */
-  /*    textual (and internationalized) information regarding the font,    */
-  /*    like family name, copyright, version, etc.                         */
-  /*                                                                       */
-  /*    The definitions below are used to access them if available.        */
-  /*                                                                       */
-  /*    Note that this has nothing to do with glyph names!                 */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_SfntName                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model an SFNT `name' table entry.              */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    platform_id :: The platform ID for `string'.                       */
-  /*                   See @TT_PLATFORM_XXX for possible values.           */
-  /*                                                                       */
-  /*    encoding_id :: The encoding ID for `string'.                       */
-  /*                   See @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX,               */
-  /*                   @TT_ISO_ID_XXX, @TT_MS_ID_XXX, and @TT_ADOBE_ID_XXX */
-  /*                   for possible values.                                */
-  /*                                                                       */
-  /*    language_id :: The language ID for `string'.                       */
-  /*                   See @TT_MAC_LANGID_XXX and @TT_MS_LANGID_XXX for    */
-  /*                   possible values.                                    */
-  /*                                                                       */
-  /*                   Registered OpenType values for `language_id' are    */
-  /*                   always smaller than 0x8000; values equal or larger  */
-  /*                   than 0x8000 usually indicate a language tag string  */
-  /*                   (introduced in OpenType version 1.6).  Use function */
-  /*                   @FT_Get_Sfnt_LangTag with `language_id' as its      */
-  /*                   argument to retrieve the associated language tag.   */
-  /*                                                                       */
-  /*    name_id     :: An identifier for `string'.                         */
-  /*                   See @TT_NAME_ID_XXX for possible values.            */
-  /*                                                                       */
-  /*    string      :: The `name' string.  Note that its format differs    */
-  /*                   depending on the (platform,encoding) pair, being    */
-  /*                   either a string of bytes (without a terminating     */
-  /*                   NULL byte) or containing UTF-16BE entities.         */
-  /*                                                                       */
-  /*    string_len  :: The length of `string' in bytes.                    */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Please refer to the TrueType or OpenType specification for more    */
-  /*    details.                                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   sfnt_names
+   *
+   * @title:
+   *   SFNT Names
+   *
+   * @abstract:
+   *   Access the names embedded in TrueType and OpenType files.
+   *
+   * @description:
+   *   The TrueType and OpenType specifications allow the inclusion of a
+   *   special names table ('name') in font files.  This table contains
+   *   textual (and internationalized) information regarding the font, like
+   *   family name, copyright, version, etc.
+   *
+   *   The definitions below are used to access them if available.
+   *
+   *   Note that this has nothing to do with glyph names!
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_SfntName
+   *
+   * @description:
+   *   A structure used to model an SFNT 'name' table entry.
+   *
+   * @fields:
+   *   platform_id ::
+   *     The platform ID for `string`.  See @TT_PLATFORM_XXX for possible
+   *     values.
+   *
+   *   encoding_id ::
+   *     The encoding ID for `string`.  See @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX,
+   *     @TT_ISO_ID_XXX, @TT_MS_ID_XXX, and @TT_ADOBE_ID_XXX for possible
+   *     values.
+   *
+   *   language_id ::
+   *     The language ID for `string`.  See @TT_MAC_LANGID_XXX and
+   *     @TT_MS_LANGID_XXX for possible values.
+   *
+   *     Registered OpenType values for `language_id` are always smaller than
+   *     0x8000; values equal or larger than 0x8000 usually indicate a
+   *     language tag string (introduced in OpenType version 1.6).  Use
+   *     function @FT_Get_Sfnt_LangTag with `language_id` as its argument to
+   *     retrieve the associated language tag.
+   *
+   *   name_id ::
+   *     An identifier for `string`.  See @TT_NAME_ID_XXX for possible
+   *     values.
+   *
+   *   string ::
+   *     The 'name' string.  Note that its format differs depending on the
+   *     (platform,encoding) pair, being either a string of bytes (without a
+   *     terminating `NULL` byte) or containing UTF-16BE entities.
+   *
+   *   string_len ::
+   *     The length of `string` in bytes.
+   *
+   * @note:
+   *   Please refer to the TrueType or OpenType specification for more
+   *   details.
+   */
   typedef struct  FT_SfntName_
   {
     FT_UShort  platform_id;
@@ -116,83 +118,95 @@ FT_BEGIN_HEADER
   } FT_SfntName;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Sfnt_Name_Count                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the number of name strings in the SFNT `name' table.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the source face.                               */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The number of strings in the `name' table.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Sfnt_Name_Count
+   *
+   * @description:
+   *   Retrieve the number of name strings in the SFNT 'name' table.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   * @return:
+   *   The number of strings in the 'name' table.
+   *
+   * @note:
+   *   This function always returns an error if the config macro
+   *   `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
+   */
   FT_EXPORT( FT_UInt )
   FT_Get_Sfnt_Name_Count( FT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Sfnt_Name                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve a string of the SFNT `name' table for a given index.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face  :: A handle to the source face.                              */
-  /*                                                                       */
-  /*    idx   :: The index of the `name' string.                           */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aname :: The indexed @FT_SfntName structure.                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The `string' array returned in the `aname' structure is not        */
-  /*    null-terminated.  Note that you don't have to deallocate `string'  */
-  /*    by yourself; FreeType takes care of it if you call @FT_Done_Face.  */
-  /*                                                                       */
-  /*    Use @FT_Get_Sfnt_Name_Count to get the total number of available   */
-  /*    `name' table entries, then do a loop until you get the right       */
-  /*    platform, encoding, and name ID.                                   */
-  /*                                                                       */
-  /*    `name' table format~1 entries can use language tags also, see      */
-  /*    @FT_Get_Sfnt_LangTag.                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Sfnt_Name
+   *
+   * @description:
+   *   Retrieve a string of the SFNT 'name' table for a given index.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   idx ::
+   *     The index of the 'name' string.
+   *
+   * @output:
+   *   aname ::
+   *     The indexed @FT_SfntName structure.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The `string` array returned in the `aname` structure is not
+   *   null-terminated.  Note that you don't have to deallocate `string` by
+   *   yourself; FreeType takes care of it if you call @FT_Done_Face.
+   *
+   *   Use @FT_Get_Sfnt_Name_Count to get the total number of available
+   *   'name' table entries, then do a loop until you get the right platform,
+   *   encoding, and name ID.
+   *
+   *   'name' table format~1 entries can use language tags also, see
+   *   @FT_Get_Sfnt_LangTag.
+   *
+   *   This function always returns an error if the config macro
+   *   `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Sfnt_Name( FT_Face       face,
                     FT_UInt       idx,
                     FT_SfntName  *aname );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_SfntLangTag                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a language tag entry from an SFNT `name'      */
-  /*    table.                                                             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    string      :: The language tag string, encoded in UTF-16BE        */
-  /*                   (without trailing NULL bytes).                      */
-  /*                                                                       */
-  /*    string_len  :: The length of `string' in *bytes*.                  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Please refer to the TrueType or OpenType specification for more    */
-  /*    details.                                                           */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.8                                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_SfntLangTag
+   *
+   * @description:
+   *   A structure to model a language tag entry from an SFNT 'name' table.
+   *
+   * @fields:
+   *   string ::
+   *     The language tag string, encoded in UTF-16BE (without trailing
+   *     `NULL` bytes).
+   *
+   *   string_len ::
+   *     The length of `string` in **bytes**.
+   *
+   * @note:
+   *   Please refer to the TrueType or OpenType specification for more
+   *   details.
+   *
+   * @since:
+   *   2.8
+   */
   typedef struct  FT_SfntLangTag_
   {
     FT_Byte*  string;      /* this string is *not* null-terminated! */
@@ -201,41 +215,47 @@ FT_BEGIN_HEADER
   } FT_SfntLangTag;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Sfnt_LangTag                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the language tag associated with a language ID of an SFNT */
-  /*    `name' table entry.                                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the source face.                           */
-  /*                                                                       */
-  /*    langID   :: The language ID, as returned by @FT_Get_Sfnt_Name.     */
-  /*                This is always a value larger than 0x8000.             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    alangTag :: The language tag associated with the `name' table      */
-  /*                entry's language ID.                                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The `string' array returned in the `alangTag' structure is not     */
-  /*    null-terminated.  Note that you don't have to deallocate `string'  */
-  /*    by yourself; FreeType takes care of it if you call @FT_Done_Face.  */
-  /*                                                                       */
-  /*    Only `name' table format~1 supports language tags.  For format~0   */
-  /*    tables, this function always returns FT_Err_Invalid_Table.  For    */
-  /*    invalid format~1 language ID values, FT_Err_Invalid_Argument is    */
-  /*    returned.                                                          */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.8                                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Sfnt_LangTag
+   *
+   * @description:
+   *   Retrieve the language tag associated with a language ID of an SFNT
+   *   'name' table entry.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   langID ::
+   *     The language ID, as returned by @FT_Get_Sfnt_Name.  This is always a
+   *     value larger than 0x8000.
+   *
+   * @output:
+   *   alangTag ::
+   *     The language tag associated with the 'name' table entry's language
+   *     ID.
+   *
+   * @return:
+   *   FreeType error code.  0~means success.
+   *
+   * @note:
+   *   The `string` array returned in the `alangTag` structure is not
+   *   null-terminated.  Note that you don't have to deallocate `string` by
+   *   yourself; FreeType takes care of it if you call @FT_Done_Face.
+   *
+   *   Only 'name' table format~1 supports language tags.  For format~0
+   *   tables, this function always returns FT_Err_Invalid_Table.  For
+   *   invalid format~1 language ID values, FT_Err_Invalid_Argument is
+   *   returned.
+   *
+   *   This function always returns an error if the config macro
+   *   `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
+   *
+   * @since:
+   *   2.8
+   */
   FT_EXPORT( FT_Error )
   FT_Get_Sfnt_LangTag( FT_Face          face,
                        FT_UInt          langID,
diff --git a/thirdparty/freetype/include/freetype/ftstroke.h b/thirdparty/freetype/include/freetype/ftstroke.h
index 44b6fbe19f..01a9c1811c 100644
--- a/thirdparty/freetype/include/freetype/ftstroke.h
+++ b/thirdparty/freetype/include/freetype/ftstroke.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftstroke.h                                                             */
-/*                                                                         */
-/*    FreeType path stroker (specification).                               */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftstroke.h
+ *
+ *   FreeType path stroker (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTSTROKE_H_
@@ -27,116 +27,113 @@
 FT_BEGIN_HEADER
 
 
- /************************************************************************
-  *
-  * @section:
-  *    glyph_stroker
-  *
-  * @title:
-  *    Glyph Stroker
-  *
-  * @abstract:
-  *    Generating bordered and stroked glyphs.
-  *
-  * @description:
-  *    This component generates stroked outlines of a given vectorial
-  *    glyph.  It also allows you to retrieve the `outside' and/or the
-  *    `inside' borders of the stroke.
-  *
-  *    This can be useful to generate `bordered' glyph, i.e., glyphs
-  *    displayed with a coloured (and anti-aliased) border around their
-  *    shape.
-  *
-  * @order:
-  *    FT_Stroker
-  *
-  *    FT_Stroker_LineJoin
-  *    FT_Stroker_LineCap
-  *    FT_StrokerBorder
-  *
-  *    FT_Outline_GetInsideBorder
-  *    FT_Outline_GetOutsideBorder
-  *
-  *    FT_Glyph_Stroke
-  *    FT_Glyph_StrokeBorder
-  *
-  *    FT_Stroker_New
-  *    FT_Stroker_Set
-  *    FT_Stroker_Rewind
-  *    FT_Stroker_ParseOutline
-  *    FT_Stroker_Done
-  *
-  *    FT_Stroker_BeginSubPath
-  *    FT_Stroker_EndSubPath
-  *
-  *    FT_Stroker_LineTo
-  *    FT_Stroker_ConicTo
-  *    FT_Stroker_CubicTo
-  *
-  *    FT_Stroker_GetBorderCounts
-  *    FT_Stroker_ExportBorder
-  *    FT_Stroker_GetCounts
-  *    FT_Stroker_Export
-  *
-  */
-
-
- /**************************************************************
-  *
-  * @type:
-  *   FT_Stroker
-  *
-  * @description:
-  *   Opaque handle to a path stroker object.
-  */
+  /**************************************************************************
+   *
+   * @section:
+   *    glyph_stroker
+   *
+   * @title:
+   *    Glyph Stroker
+   *
+   * @abstract:
+   *    Generating bordered and stroked glyphs.
+   *
+   * @description:
+   *    This component generates stroked outlines of a given vectorial glyph.
+   *    It also allows you to retrieve the 'outside' and/or the 'inside'
+   *    borders of the stroke.
+   *
+   *    This can be useful to generate 'bordered' glyph, i.e., glyphs
+   *    displayed with a coloured (and anti-aliased) border around their
+   *    shape.
+   *
+   * @order:
+   *    FT_Stroker
+   *
+   *    FT_Stroker_LineJoin
+   *    FT_Stroker_LineCap
+   *    FT_StrokerBorder
+   *
+   *    FT_Outline_GetInsideBorder
+   *    FT_Outline_GetOutsideBorder
+   *
+   *    FT_Glyph_Stroke
+   *    FT_Glyph_StrokeBorder
+   *
+   *    FT_Stroker_New
+   *    FT_Stroker_Set
+   *    FT_Stroker_Rewind
+   *    FT_Stroker_ParseOutline
+   *    FT_Stroker_Done
+   *
+   *    FT_Stroker_BeginSubPath
+   *    FT_Stroker_EndSubPath
+   *
+   *    FT_Stroker_LineTo
+   *    FT_Stroker_ConicTo
+   *    FT_Stroker_CubicTo
+   *
+   *    FT_Stroker_GetBorderCounts
+   *    FT_Stroker_ExportBorder
+   *    FT_Stroker_GetCounts
+   *    FT_Stroker_Export
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Stroker
+   *
+   * @description:
+   *   Opaque handle to a path stroker object.
+   */
   typedef struct FT_StrokerRec_*  FT_Stroker;
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_Stroker_LineJoin
    *
    * @description:
-   *   These values determine how two joining lines are rendered
-   *   in a stroker.
+   *   These values determine how two joining lines are rendered in a
+   *   stroker.
    *
    * @values:
    *   FT_STROKER_LINEJOIN_ROUND ::
-   *     Used to render rounded line joins.  Circular arcs are used
-   *     to join two lines smoothly.
+   *     Used to render rounded line joins.  Circular arcs are used to join
+   *     two lines smoothly.
    *
    *   FT_STROKER_LINEJOIN_BEVEL ::
-   *     Used to render beveled line joins.  The outer corner of
-   *     the joined lines is filled by enclosing the triangular
-   *     region of the corner with a straight line between the
-   *     outer corners of each stroke.
+   *     Used to render beveled line joins.  The outer corner of the joined
+   *     lines is filled by enclosing the triangular region of the corner
+   *     with a straight line between the outer corners of each stroke.
    *
    *   FT_STROKER_LINEJOIN_MITER_FIXED ::
-   *     Used to render mitered line joins, with fixed bevels if the
-   *     miter limit is exceeded.  The outer edges of the strokes
-   *     for the two segments are extended until they meet at an
-   *     angle.  If the segments meet at too sharp an angle (such
-   *     that the miter would extend from the intersection of the
-   *     segments a distance greater than the product of the miter
-   *     limit value and the border radius), then a bevel join (see
-   *     above) is used instead.  This prevents long spikes being
-   *     created.  FT_STROKER_LINEJOIN_MITER_FIXED generates a miter
-   *     line join as used in PostScript and PDF.
+   *     Used to render mitered line joins, with fixed bevels if the miter
+   *     limit is exceeded.  The outer edges of the strokes for the two
+   *     segments are extended until they meet at an angle.  If the segments
+   *     meet at too sharp an angle (such that the miter would extend from
+   *     the intersection of the segments a distance greater than the product
+   *     of the miter limit value and the border radius), then a bevel join
+   *     (see above) is used instead.  This prevents long spikes being
+   *     created.  `FT_STROKER_LINEJOIN_MITER_FIXED` generates a miter line
+   *     join as used in PostScript and PDF.
    *
    *   FT_STROKER_LINEJOIN_MITER_VARIABLE ::
    *   FT_STROKER_LINEJOIN_MITER ::
-   *     Used to render mitered line joins, with variable bevels if
-   *     the miter limit is exceeded.  The intersection of the
-   *     strokes is clipped at a line perpendicular to the bisector
-   *     of the angle between the strokes, at the distance from the
-   *     intersection of the segments equal to the product of the
-   *     miter limit value and the border radius.  This prevents
-   *     long spikes being created.
-   *     FT_STROKER_LINEJOIN_MITER_VARIABLE generates a mitered line
-   *     join as used in XPS.  FT_STROKER_LINEJOIN_MITER is an alias
-   *     for FT_STROKER_LINEJOIN_MITER_VARIABLE, retained for
-   *     backward compatibility.
+   *     Used to render mitered line joins, with variable bevels if the miter
+   *     limit is exceeded.  The intersection of the strokes is clipped at a
+   *     line perpendicular to the bisector of the angle between the strokes,
+   *     at the distance from the intersection of the segments equal to the
+   *     product of the miter limit value and the border radius.  This
+   *     prevents long spikes being created. 
+   *     `FT_STROKER_LINEJOIN_MITER_VARIABLE` generates a mitered line join
+   *     as used in XPS.  `FT_STROKER_LINEJOIN_MITER` is an alias for
+   *     `FT_STROKER_LINEJOIN_MITER_VARIABLE`, retained for backward
+   *     compatibility.
    */
   typedef enum  FT_Stroker_LineJoin_
   {
@@ -149,27 +146,25 @@ FT_BEGIN_HEADER
   } FT_Stroker_LineJoin;
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_Stroker_LineCap
    *
    * @description:
-   *   These values determine how the end of opened sub-paths are
-   *   rendered in a stroke.
+   *   These values determine how the end of opened sub-paths are rendered in
+   *   a stroke.
    *
    * @values:
    *   FT_STROKER_LINECAP_BUTT ::
-   *     The end of lines is rendered as a full stop on the last
-   *     point itself.
+   *     The end of lines is rendered as a full stop on the last point
+   *     itself.
    *
    *   FT_STROKER_LINECAP_ROUND ::
-   *     The end of lines is rendered as a half-circle around the
-   *     last point.
+   *     The end of lines is rendered as a half-circle around the last point.
    *
    *   FT_STROKER_LINECAP_SQUARE ::
-   *     The end of lines is rendered as a square around the
-   *     last point.
+   *     The end of lines is rendered as a square around the last point.
    */
   typedef enum  FT_Stroker_LineCap_
   {
@@ -180,14 +175,14 @@ FT_BEGIN_HEADER
   } FT_Stroker_LineCap;
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_StrokerBorder
    *
    * @description:
-   *   These values are used to select a given stroke border
-   *   in @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder.
+   *   These values are used to select a given stroke border in
+   *   @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder.
    *
    * @values:
    *   FT_STROKER_BORDER_LEFT ::
@@ -197,9 +192,9 @@ FT_BEGIN_HEADER
    *     Select the right border, relative to the drawing direction.
    *
    * @note:
-   *   Applications are generally interested in the `inside' and `outside'
+   *   Applications are generally interested in the 'inside' and 'outside'
    *   borders.  However, there is no direct mapping between these and the
-   *   `left' and `right' ones, since this really depends on the glyph's
+   *   'left' and 'right' ones, since this really depends on the glyph's
    *   drawing orientation, which varies between font formats.
    *
    *   You can however use @FT_Outline_GetInsideBorder and
@@ -213,14 +208,14 @@ FT_BEGIN_HEADER
   } FT_StrokerBorder;
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Outline_GetInsideBorder
    *
    * @description:
-   *   Retrieve the @FT_StrokerBorder value corresponding to the
-   *   `inside' borders of a given outline.
+   *   Retrieve the @FT_StrokerBorder value corresponding to the 'inside'
+   *   borders of a given outline.
    *
    * @input:
    *   outline ::
@@ -234,14 +229,14 @@ FT_BEGIN_HEADER
   FT_Outline_GetInsideBorder( FT_Outline*  outline );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Outline_GetOutsideBorder
    *
    * @description:
-   *   Retrieve the @FT_StrokerBorder value corresponding to the
-   *   `outside' borders of a given outline.
+   *   Retrieve the @FT_StrokerBorder value corresponding to the 'outside'
+   *   borders of a given outline.
    *
    * @input:
    *   outline ::
@@ -255,7 +250,7 @@ FT_BEGIN_HEADER
   FT_Outline_GetOutsideBorder( FT_Outline*  outline );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_New
@@ -269,7 +264,7 @@ FT_BEGIN_HEADER
    *
    * @output:
    *   astroker ::
-   *     A new stroker object handle.  NULL in case of error.
+   *     A new stroker object handle.  `NULL` in case of error.
    *
    * @return:
    *    FreeType error code.  0~means success.
@@ -279,7 +274,7 @@ FT_BEGIN_HEADER
                   FT_Stroker  *astroker );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_Set
@@ -301,13 +296,12 @@ FT_BEGIN_HEADER
    *     The line join style.
    *
    *   miter_limit ::
-   *     The miter limit for the FT_STROKER_LINEJOIN_MITER_FIXED and
-   *     FT_STROKER_LINEJOIN_MITER_VARIABLE line join styles,
-   *     expressed as 16.16 fixed-point value.
+   *     The miter limit for the `FT_STROKER_LINEJOIN_MITER_FIXED` and
+   *     `FT_STROKER_LINEJOIN_MITER_VARIABLE` line join styles, expressed as
+   *     16.16 fixed-point value.
    *
    * @note:
-   *   The radius is expressed in the same units as the outline
-   *   coordinates.
+   *   The radius is expressed in the same units as the outline coordinates.
    *
    *   This function calls @FT_Stroker_Rewind automatically.
    */
@@ -319,16 +313,15 @@ FT_BEGIN_HEADER
                   FT_Fixed             miter_limit );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_Rewind
    *
    * @description:
-   *   Reset a stroker object without changing its attributes.
-   *   You should call this function before beginning a new
-   *   series of calls to @FT_Stroker_BeginSubPath or
-   *   @FT_Stroker_EndSubPath.
+   *   Reset a stroker object without changing its attributes.  You should
+   *   call this function before beginning a new series of calls to
+   *   @FT_Stroker_BeginSubPath or @FT_Stroker_EndSubPath.
    *
    * @input:
    *   stroker ::
@@ -338,15 +331,15 @@ FT_BEGIN_HEADER
   FT_Stroker_Rewind( FT_Stroker  stroker );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_ParseOutline
    *
    * @description:
-   *   A convenience function used to parse a whole outline with
-   *   the stroker.  The resulting outline(s) can be retrieved
-   *   later by functions like @FT_Stroker_GetCounts and @FT_Stroker_Export.
+   *   A convenience function used to parse a whole outline with the stroker.
+   *   The resulting outline(s) can be retrieved later by functions like
+   *   @FT_Stroker_GetCounts and @FT_Stroker_Export.
    *
    * @input:
    *   stroker ::
@@ -356,18 +349,18 @@ FT_BEGIN_HEADER
    *     The source outline.
    *
    *   opened ::
-   *     A boolean.  If~1, the outline is treated as an open path instead
-   *     of a closed one.
+   *     A boolean.  If~1, the outline is treated as an open path instead of
+   *     a closed one.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *   If `opened' is~0 (the default), the outline is treated as a closed
-   *   path, and the stroker generates two distinct `border' outlines.
+   *   If `opened` is~0 (the default), the outline is treated as a closed
+   *   path, and the stroker generates two distinct 'border' outlines.
    *
-   *   If `opened' is~1, the outline is processed as an open path, and the
-   *   stroker generates a single `stroke' outline.
+   *   If `opened` is~1, the outline is processed as an open path, and the
+   *   stroker generates a single 'stroke' outline.
    *
    *   This function calls @FT_Stroker_Rewind automatically.
    */
@@ -377,7 +370,7 @@ FT_BEGIN_HEADER
                            FT_Bool      opened );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_BeginSubPath
@@ -399,8 +392,8 @@ FT_BEGIN_HEADER
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *   This function is useful when you need to stroke a path that is
-   *   not stored as an @FT_Outline object.
+   *   This function is useful when you need to stroke a path that is not
+   *   stored as an @FT_Outline object.
    */
   FT_EXPORT( FT_Error )
   FT_Stroker_BeginSubPath( FT_Stroker  stroker,
@@ -408,7 +401,7 @@ FT_BEGIN_HEADER
                            FT_Bool     open );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_EndSubPath
@@ -424,22 +417,22 @@ FT_BEGIN_HEADER
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *   You should call this function after @FT_Stroker_BeginSubPath.
-   *   If the subpath was not `opened', this function `draws' a
-   *   single line segment to the start position when needed.
+   *   You should call this function after @FT_Stroker_BeginSubPath.  If the
+   *   subpath was not 'opened', this function 'draws' a single line segment
+   *   to the start position when needed.
    */
   FT_EXPORT( FT_Error )
   FT_Stroker_EndSubPath( FT_Stroker  stroker );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_LineTo
    *
    * @description:
-   *   `Draw' a single line segment in the stroker's current sub-path,
-   *   from the last position.
+   *   'Draw' a single line segment in the stroker's current sub-path, from
+   *   the last position.
    *
    * @input:
    *   stroker ::
@@ -460,13 +453,13 @@ FT_BEGIN_HEADER
                      FT_Vector*  to );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_ConicTo
    *
    * @description:
-   *   `Draw' a single quadratic Bezier in the stroker's current sub-path,
+   *   'Draw' a single quadratic Bezier in the stroker's current sub-path,
    *   from the last position.
    *
    * @input:
@@ -492,14 +485,14 @@ FT_BEGIN_HEADER
                       FT_Vector*  to );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_CubicTo
    *
    * @description:
-   *   `Draw' a single cubic Bezier in the stroker's current sub-path,
-   *   from the last position.
+   *   'Draw' a single cubic Bezier in the stroker's current sub-path, from
+   *   the last position.
    *
    * @input:
    *   stroker ::
@@ -528,16 +521,16 @@ FT_BEGIN_HEADER
                       FT_Vector*  to );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_GetBorderCounts
    *
    * @description:
-   *   Call this function once you have finished parsing your paths
-   *   with the stroker.  It returns the number of points and
-   *   contours necessary to export one of the `border' or `stroke'
-   *   outlines generated by the stroker.
+   *   Call this function once you have finished parsing your paths with the
+   *   stroker.  It returns the number of points and contours necessary to
+   *   export one of the 'border' or 'stroke' outlines generated by the
+   *   stroker.
    *
    * @input:
    *   stroker ::
@@ -557,15 +550,15 @@ FT_BEGIN_HEADER
    *   FreeType error code.  0~means success.
    *
    * @note:
-   *   When an outline, or a sub-path, is `closed', the stroker generates
-   *   two independent `border' outlines, named `left' and `right'.
+   *   When an outline, or a sub-path, is 'closed', the stroker generates two
+   *   independent 'border' outlines, named 'left' and 'right'.
    *
-   *   When the outline, or a sub-path, is `opened', the stroker merges
-   *   the `border' outlines with caps.  The `left' border receives all
-   *   points, while the `right' border becomes empty.
+   *   When the outline, or a sub-path, is 'opened', the stroker merges the
+   *   'border' outlines with caps.  The 'left' border receives all points,
+   *   while the 'right' border becomes empty.
    *
-   *   Use the function @FT_Stroker_GetCounts instead if you want to
-   *   retrieve the counts associated to both borders.
+   *   Use the function @FT_Stroker_GetCounts instead if you want to retrieve
+   *   the counts associated to both borders.
    */
   FT_EXPORT( FT_Error )
   FT_Stroker_GetBorderCounts( FT_Stroker        stroker,
@@ -574,19 +567,17 @@ FT_BEGIN_HEADER
                               FT_UInt          *anum_contours );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_ExportBorder
    *
    * @description:
-   *   Call this function after @FT_Stroker_GetBorderCounts to
-   *   export the corresponding border to your own @FT_Outline
-   *   structure.
+   *   Call this function after @FT_Stroker_GetBorderCounts to export the
+   *   corresponding border to your own @FT_Outline structure.
    *
-   *   Note that this function appends the border points and
-   *   contours to your outline, but does not try to resize its
-   *   arrays.
+   *   Note that this function appends the border points and contours to your
+   *   outline, but does not try to resize its arrays.
    *
    * @input:
    *   stroker ::
@@ -599,19 +590,19 @@ FT_BEGIN_HEADER
    *     The target outline handle.
    *
    * @note:
-   *   Always call this function after @FT_Stroker_GetBorderCounts to
-   *   get sure that there is enough room in your @FT_Outline object to
-   *   receive all new data.
+   *   Always call this function after @FT_Stroker_GetBorderCounts to get
+   *   sure that there is enough room in your @FT_Outline object to receive
+   *   all new data.
    *
-   *   When an outline, or a sub-path, is `closed', the stroker generates
-   *   two independent `border' outlines, named `left' and `right'.
+   *   When an outline, or a sub-path, is 'closed', the stroker generates two
+   *   independent 'border' outlines, named 'left' and 'right'.
    *
-   *   When the outline, or a sub-path, is `opened', the stroker merges
-   *   the `border' outlines with caps.  The `left' border receives all
-   *   points, while the `right' border becomes empty.
+   *   When the outline, or a sub-path, is 'opened', the stroker merges the
+   *   'border' outlines with caps.  The 'left' border receives all points,
+   *   while the 'right' border becomes empty.
    *
-   *   Use the function @FT_Stroker_Export instead if you want to
-   *   retrieve all borders at once.
+   *   Use the function @FT_Stroker_Export instead if you want to retrieve
+   *   all borders at once.
    */
   FT_EXPORT( void )
   FT_Stroker_ExportBorder( FT_Stroker        stroker,
@@ -619,16 +610,15 @@ FT_BEGIN_HEADER
                            FT_Outline*       outline );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_GetCounts
    *
    * @description:
-   *   Call this function once you have finished parsing your paths
-   *   with the stroker.  It returns the number of points and
-   *   contours necessary to export all points/borders from the stroked
-   *   outline/path.
+   *   Call this function once you have finished parsing your paths with the
+   *   stroker.  It returns the number of points and contours necessary to
+   *   export all points/borders from the stroked outline/path.
    *
    * @input:
    *   stroker ::
@@ -650,18 +640,17 @@ FT_BEGIN_HEADER
                         FT_UInt    *anum_contours );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_Export
    *
    * @description:
-   *   Call this function after @FT_Stroker_GetBorderCounts to
-   *   export all borders to your own @FT_Outline structure.
+   *   Call this function after @FT_Stroker_GetBorderCounts to export all
+   *   borders to your own @FT_Outline structure.
    *
-   *   Note that this function appends the border points and
-   *   contours to your outline, but does not try to resize its
-   *   arrays.
+   *   Note that this function appends the border points and contours to your
+   *   outline, but does not try to resize its arrays.
    *
    * @input:
    *   stroker ::
@@ -675,7 +664,7 @@ FT_BEGIN_HEADER
                      FT_Outline*  outline );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Stroker_Done
@@ -685,13 +674,13 @@ FT_BEGIN_HEADER
    *
    * @input:
    *   stroker ::
-   *     A stroker handle.  Can be NULL.
+   *     A stroker handle.  Can be `NULL`.
    */
   FT_EXPORT( void )
   FT_Stroker_Done( FT_Stroker  stroker );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Glyph_Stroke
@@ -708,8 +697,7 @@ FT_BEGIN_HEADER
    *     A stroker handle.
    *
    *   destroy ::
-   *     A Boolean.  If~1, the source glyph object is destroyed
-   *     on success.
+   *     A Boolean.  If~1, the source glyph object is destroyed on success.
    *
    * @return:
    *    FreeType error code.  0~means success.
@@ -719,8 +707,8 @@ FT_BEGIN_HEADER
    *
    *   Adding stroke may yield a significantly wider and taller glyph
    *   depending on how large of a radius was used to stroke the glyph.  You
-   *   may need to manually adjust horizontal and vertical advance amounts
-   *   to account for this added size.
+   *   may need to manually adjust horizontal and vertical advance amounts to
+   *   account for this added size.
    */
   FT_EXPORT( FT_Error )
   FT_Glyph_Stroke( FT_Glyph    *pglyph,
@@ -728,14 +716,14 @@ FT_BEGIN_HEADER
                    FT_Bool      destroy );
 
 
-  /**************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Glyph_StrokeBorder
    *
    * @description:
-   *   Stroke a given outline glyph object with a given stroker, but
-   *   only return either its inside or outside border.
+   *   Stroke a given outline glyph object with a given stroker, but only
+   *   return either its inside or outside border.
    *
    * @inout:
    *   pglyph ::
@@ -746,12 +734,11 @@ FT_BEGIN_HEADER
    *     A stroker handle.
    *
    *   inside ::
-   *     A Boolean.  If~1, return the inside border, otherwise
-   *     the outside border.
+   *     A Boolean.  If~1, return the inside border, otherwise the outside
+   *     border.
    *
    *   destroy ::
-   *     A Boolean.  If~1, the source glyph object is destroyed
-   *     on success.
+   *     A Boolean.  If~1, the source glyph object is destroyed on success.
    *
    * @return:
    *    FreeType error code.  0~means success.
@@ -761,8 +748,8 @@ FT_BEGIN_HEADER
    *
    *   Adding stroke may yield a significantly wider and taller glyph
    *   depending on how large of a radius was used to stroke the glyph.  You
-   *   may need to manually adjust horizontal and vertical advance amounts
-   *   to account for this added size.
+   *   may need to manually adjust horizontal and vertical advance amounts to
+   *   account for this added size.
    */
   FT_EXPORT( FT_Error )
   FT_Glyph_StrokeBorder( FT_Glyph    *pglyph,
diff --git a/thirdparty/freetype/include/freetype/ftsynth.h b/thirdparty/freetype/include/freetype/ftsynth.h
index ff9fb43d96..8754f97cee 100644
--- a/thirdparty/freetype/include/freetype/ftsynth.h
+++ b/thirdparty/freetype/include/freetype/ftsynth.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsynth.h                                                              */
-/*                                                                         */
-/*    FreeType synthesizing code for emboldening and slanting              */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsynth.h
+ *
+ *   FreeType synthesizing code for emboldening and slanting
+ *   (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /*************************************************************************/
@@ -35,7 +35,7 @@
 
 
   /* Main reason for not lifting the functions in this module to a  */
-  /* `standard' API is that the used parameters for emboldening and */
+  /* 'standard' API is that the used parameters for emboldening and */
   /* slanting are not configurable.  Consider the functions as a    */
   /* code resource that should be copied into the application and   */
   /* adapted to the particular needs.                               */
@@ -57,7 +57,7 @@
 
 FT_BEGIN_HEADER
 
-  /* Embolden a glyph by a `reasonable' value (which is highly a matter of */
+  /* Embolden a glyph by a 'reasonable' value (which is highly a matter of */
   /* taste).  This function is actually a convenience function, providing  */
   /* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden.           */
   /*                                                                       */
diff --git a/thirdparty/freetype/include/freetype/ftsystem.h b/thirdparty/freetype/include/freetype/ftsystem.h
index f6b1629ef2..889a6ba172 100644
--- a/thirdparty/freetype/include/freetype/ftsystem.h
+++ b/thirdparty/freetype/include/freetype/ftsystem.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsystem.h                                                             */
-/*                                                                         */
-/*    FreeType low-level system interface definition (specification).      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsystem.h
+ *
+ *   FreeType low-level system interface definition (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTSYSTEM_H_
@@ -26,34 +26,33 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*   system_interface                                                    */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*   System Interface                                                    */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*   How FreeType manages memory and i/o.                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   This section contains various definitions related to memory         */
-  /*   management and i/o access.  You need to understand this             */
-  /*   information if you want to use a custom memory manager or you own   */
-  /*   i/o streams.                                                        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *  system_interface
+   *
+   * @title:
+   *  System Interface
+   *
+   * @abstract:
+   *  How FreeType manages memory and i/o.
+   *
+   * @description:
+   *  This section contains various definitions related to memory management
+   *  and i/o access.  You need to understand this information if you want to
+   *  use a custom memory manager or you own i/o streams.
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                  M E M O R Y   M A N A G E M E N T                    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                 M E M O R Y   M A N A G E M E N T
+   *
+   */
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Memory
@@ -66,13 +65,13 @@ FT_BEGIN_HEADER
   typedef struct FT_MemoryRec_*  FT_Memory;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   FT_Alloc_Func
    *
    * @description:
-   *   A function used to allocate `size' bytes from `memory'.
+   *   A function used to allocate `size` bytes from `memory`.
    *
    * @input:
    *   memory ::
@@ -90,7 +89,7 @@ FT_BEGIN_HEADER
                     long       size );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   FT_Free_Func
@@ -111,7 +110,7 @@ FT_BEGIN_HEADER
                    void*      block );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   FT_Realloc_Func
@@ -146,7 +145,7 @@ FT_BEGIN_HEADER
                       void*      block );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FT_MemoryRec
@@ -177,14 +176,14 @@ FT_BEGIN_HEADER
   };
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                       I / O   M A N A G E M E N T                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                      I / O   M A N A G E M E N T
+   *
+   */
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Stream
@@ -193,21 +192,21 @@ FT_BEGIN_HEADER
    *   A handle to an input stream.
    *
    * @also:
-   *   See @FT_StreamRec for the publicly accessible fields of a given
-   *   stream object.
+   *   See @FT_StreamRec for the publicly accessible fields of a given stream
+   *   object.
    *
    */
   typedef struct FT_StreamRec_*  FT_Stream;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FT_StreamDesc
    *
    * @description:
    *   A union type used to store either a long or a pointer.  This is used
-   *   to store a file descriptor or a `FILE*' in an input stream.
+   *   to store a file descriptor or a `FILE*` in an input stream.
    *
    */
   typedef union  FT_StreamDesc_
@@ -218,7 +217,7 @@ FT_BEGIN_HEADER
   } FT_StreamDesc;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   FT_Stream_IoFunc
@@ -243,9 +242,8 @@ FT_BEGIN_HEADER
    *   The number of bytes effectively read by the stream.
    *
    * @note:
-   *   This function might be called to perform a seek or skip operation
-   *   with a `count' of~0.  A non-zero return value then indicates an
-   *   error.
+   *   This function might be called to perform a seek or skip operation with
+   *   a `count` of~0.  A non-zero return value then indicates an error.
    *
    */
   typedef unsigned long
@@ -255,7 +253,7 @@ FT_BEGIN_HEADER
                        unsigned long   count );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   FT_Stream_CloseFunc
@@ -265,14 +263,14 @@ FT_BEGIN_HEADER
    *
    * @input:
    *  stream ::
-   *     A handle to the target stream.
+   *    A handle to the target stream.
    *
    */
   typedef void
   (*FT_Stream_CloseFunc)( FT_Stream  stream );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   FT_StreamRec
@@ -283,7 +281,7 @@ FT_BEGIN_HEADER
    * @input:
    *   base ::
    *     For memory-based streams, this is the address of the first stream
-   *     byte in memory.  This field should always be set to NULL for
+   *     byte in memory.  This field should always be set to `NULL` for
    *     disk-based streams.
    *
    *   size ::
@@ -299,7 +297,7 @@ FT_BEGIN_HEADER
    *
    *   descriptor ::
    *     This field is a union that can hold an integer or a pointer.  It is
-   *     used by stream implementations to store file descriptors or `FILE*'
+   *     used by stream implementations to store file descriptors or `FILE*`
    *     pointers.
    *
    *   pathname ::
@@ -314,13 +312,13 @@ FT_BEGIN_HEADER
    *     The stream's close function.
    *
    *   memory ::
-   *     The memory manager to use to preload frames.  This is set
-   *     internally by FreeType and shouldn't be touched by stream
-   *     implementations.
+   *     The memory manager to use to preload frames.  This is set internally
+   *     by FreeType and shouldn't be touched by stream implementations.
    *
    *   cursor ::
    *     This field is set and used internally by FreeType when parsing
-   *     frames.
+   *     frames.  In particular, the `FT_GET_XXX` macros use this instead of
+   *     the `pos` field.
    *
    *   limit ::
    *     This field is set and used internally by FreeType when parsing
diff --git a/thirdparty/freetype/include/freetype/fttrigon.h b/thirdparty/freetype/include/freetype/fttrigon.h
index 2e3f3f1f73..37e1412fdf 100644
--- a/thirdparty/freetype/include/freetype/fttrigon.h
+++ b/thirdparty/freetype/include/freetype/fttrigon.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fttrigon.h                                                             */
-/*                                                                         */
-/*    FreeType trigonometric functions (specification).                    */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fttrigon.h
+ *
+ *   FreeType trigonometric functions (specification).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTTRIGON_H_
@@ -31,15 +31,15 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*   computations                                                        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *  computations
+   *
+   */
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   FT_Angle
@@ -52,7 +52,7 @@ FT_BEGIN_HEADER
   typedef FT_Fixed  FT_Angle;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_ANGLE_PI
@@ -64,7 +64,7 @@ FT_BEGIN_HEADER
 #define FT_ANGLE_PI  ( 180L << 16 )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_ANGLE_2PI
@@ -76,7 +76,7 @@ FT_BEGIN_HEADER
 #define FT_ANGLE_2PI  ( FT_ANGLE_PI * 2 )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_ANGLE_PI2
@@ -88,7 +88,7 @@ FT_BEGIN_HEADER
 #define FT_ANGLE_PI2  ( FT_ANGLE_PI / 2 )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @macro:
    *   FT_ANGLE_PI4
@@ -100,7 +100,7 @@ FT_BEGIN_HEADER
 #define FT_ANGLE_PI4  ( FT_ANGLE_PI / 4 )
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Sin
@@ -124,7 +124,7 @@ FT_BEGIN_HEADER
   FT_Sin( FT_Angle  angle );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Cos
@@ -148,7 +148,7 @@ FT_BEGIN_HEADER
   FT_Cos( FT_Angle  angle );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Tan
@@ -168,14 +168,14 @@ FT_BEGIN_HEADER
   FT_Tan( FT_Angle  angle );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Atan2
    *
    * @description:
-   *   Return the arc-tangent corresponding to a given vector (x,y) in
-   *   the 2d plane.
+   *   Return the arc-tangent corresponding to a given vector (x,y) in the 2d
+   *   plane.
    *
    * @input:
    *   x ::
@@ -193,7 +193,7 @@ FT_BEGIN_HEADER
             FT_Fixed  y );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Angle_Diff
@@ -210,7 +210,7 @@ FT_BEGIN_HEADER
    *     Second angle.
    *
    * @return:
-   *   Constrained value of `value2-value1'.
+   *   Constrained value of `angle2-angle1`.
    *
    */
   FT_EXPORT( FT_Angle )
@@ -218,15 +218,15 @@ FT_BEGIN_HEADER
                  FT_Angle  angle2 );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Vector_Unit
    *
    * @description:
    *   Return the unit vector corresponding to a given angle.  After the
-   *   call, the value of `vec.x' will be `cos(angle)', and the value of
-   *   `vec.y' will be `sin(angle)'.
+   *   call, the value of `vec.x` will be `cos(angle)`, and the value of
+   *   `vec.y` will be `sin(angle)`.
    *
    *   This function is useful to retrieve both the sinus and cosinus of a
    *   given angle quickly.
@@ -245,7 +245,7 @@ FT_BEGIN_HEADER
                   FT_Angle    angle );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Vector_Rotate
@@ -267,7 +267,7 @@ FT_BEGIN_HEADER
                     FT_Angle    angle );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Vector_Length
@@ -288,7 +288,7 @@ FT_BEGIN_HEADER
   FT_Vector_Length( FT_Vector*  vec );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Vector_Polarize
@@ -314,7 +314,7 @@ FT_BEGIN_HEADER
                       FT_Angle   *angle );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @function:
    *   FT_Vector_From_Polar
diff --git a/thirdparty/freetype/include/freetype/ftttdrv.h b/thirdparty/freetype/include/freetype/ftttdrv.h
deleted file mode 100644
index 26bc5e966a..0000000000
--- a/thirdparty/freetype/include/freetype/ftttdrv.h
+++ /dev/null
@@ -1,328 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftttdrv.h                                                              */
-/*                                                                         */
-/*    FreeType API for controlling the TrueType driver                     */
-/*    (specification only).                                                */
-/*                                                                         */
-/*  Copyright 2013-2017 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef FTTTDRV_H_
-#define FTTTDRV_H_
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
-  /**************************************************************************
-   *
-   * @section:
-   *   tt_driver
-   *
-   * @title:
-   *   The TrueType driver
-   *
-   * @abstract:
-   *   Controlling the TrueType driver module.
-   *
-   * @description:
-   *   While FreeType's TrueType driver doesn't expose API functions by
-   *   itself, it is possible to control its behaviour with @FT_Property_Set
-   *   and @FT_Property_Get.  The following lists the available properties
-   *   together with the necessary macros and structures.
-   *
-   *   The TrueType driver's module name is `truetype'.
-   *
-   *   We start with a list of definitions, kindly provided by Greg
-   *   Hitchcock.
-   *
-   *   _Bi-Level_ _Rendering_
-   *
-   *   Monochromatic rendering, exclusively used in the early days of
-   *   TrueType by both Apple and Microsoft.  Microsoft's GDI interface
-   *   supported hinting of the right-side bearing point, such that the
-   *   advance width could be non-linear.  Most often this was done to
-   *   achieve some level of glyph symmetry.  To enable reasonable
-   *   performance (e.g., not having to run hinting on all glyphs just to
-   *   get the widths) there was a bit in the head table indicating if the
-   *   side bearing was hinted, and additional tables, `hdmx' and `LTSH', to
-   *   cache hinting widths across multiple sizes and device aspect ratios.
-   *
-   *   _Font_ _Smoothing_
-   *
-   *   Microsoft's GDI implementation of anti-aliasing.  Not traditional
-   *   anti-aliasing as the outlines were hinted before the sampling.  The
-   *   widths matched the bi-level rendering.
-   *
-   *   _ClearType_ _Rendering_
-   *
-   *   Technique that uses physical subpixels to improve rendering on LCD
-   *   (and other) displays.  Because of the higher resolution, many methods
-   *   of improving symmetry in glyphs through hinting the right-side
-   *   bearing were no longer necessary.  This lead to what GDI calls
-   *   `natural widths' ClearType, see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec21.  Since hinting
-   *   has extra resolution, most non-linearity went away, but it is still
-   *   possible for hints to change the advance widths in this mode.
-   *
-   *   _ClearType_ _Compatible_ _Widths_
-   *
-   *   One of the earliest challenges with ClearType was allowing the
-   *   implementation in GDI to be selected without requiring all UI and
-   *   documents to reflow.  To address this, a compatible method of
-   *   rendering ClearType was added where the font hints are executed once
-   *   to determine the width in bi-level rendering, and then re-run in
-   *   ClearType, with the difference in widths being absorbed in the font
-   *   hints for ClearType (mostly in the white space of hints); see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec20.  Somewhat by
-   *   definition, compatible width ClearType allows for non-linear widths,
-   *   but only when the bi-level version has non-linear widths.
-   *
-   *   _ClearType_ _Subpixel_ _Positioning_
-   *
-   *   One of the nice benefits of ClearType is the ability to more crisply
-   *   display fractional widths; unfortunately, the GDI model of integer
-   *   bitmaps did not support this.  However, the WPF and Direct Write
-   *   frameworks do support fractional widths.  DWrite calls this `natural
-   *   mode', not to be confused with GDI's `natural widths'.  Subpixel
-   *   positioning, in the current implementation of Direct Write,
-   *   unfortunately does not support hinted advance widths, see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec22.  Note that the
-   *   TrueType interpreter fully allows the advance width to be adjusted in
-   *   this mode, just the DWrite client will ignore those changes.
-   *
-   *   _ClearType_ _Backward_ _Compatibility_
-   *
-   *   This is a set of exceptions made in the TrueType interpreter to
-   *   minimize hinting techniques that were problematic with the extra
-   *   resolution of ClearType; see
-   *   http://www.beatstamm.com/typography/RTRCh4.htm#Sec1 and
-   *   http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx.
-   *   This technique is not to be confused with ClearType compatible
-   *   widths.  ClearType backward compatibility has no direct impact on
-   *   changing advance widths, but there might be an indirect impact on
-   *   disabling some deltas.  This could be worked around in backward
-   *   compatibility mode.
-   *
-   *   _Native_ _ClearType_ _Mode_
-   *
-   *   (Not to be confused with `natural widths'.)  This mode removes all
-   *   the exceptions in the TrueType interpreter when running with
-   *   ClearType.  Any issues on widths would still apply, though.
-   *
-   */
-
-
-  /**************************************************************************
-   *
-   * @property:
-   *   interpreter-version
-   *
-   * @description:
-   *   Currently, three versions are available, two representing the
-   *   bytecode interpreter with subpixel hinting support (old `Infinality'
-   *   code and new stripped-down and higher performance `minimal' code) and
-   *   one without, respectively.  The default is subpixel support if
-   *   TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel support
-   *   otherwise (since it isn't available then).
-   *
-   *   If subpixel hinting is on, many TrueType bytecode instructions behave
-   *   differently compared to B/W or grayscale rendering (except if `native
-   *   ClearType' is selected by the font).  Microsoft's main idea is to
-   *   render at a much increased horizontal resolution, then sampling down
-   *   the created output to subpixel precision.  However, many older fonts
-   *   are not suited to this and must be specially taken care of by
-   *   applying (hardcoded) tweaks in Microsoft's interpreter.
-   *
-   *   Details on subpixel hinting and some of the necessary tweaks can be
-   *   found in Greg Hitchcock's whitepaper at
-   *   `http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx'. 
-   *   Note that FreeType currently doesn't really `subpixel hint' (6x1, 6x2,
-   *   or 6x5 supersampling) like discussed in the paper.  Depending on the
-   *   chosen interpreter, it simply ignores instructions on vertical stems
-   *   to arrive at very similar results.
-   *
-   *   The following example code demonstrates how to deactivate subpixel
-   *   hinting (omitting the error handling).
-   *
-   *   {
-   *     FT_Library  library;
-   *     FT_Face     face;
-   *     FT_UInt     interpreter_version = TT_INTERPRETER_VERSION_35;
-   *
-   *
-   *     FT_Init_FreeType( &library );
-   *
-   *     FT_Property_Set( library, "truetype",
-   *                               "interpreter-version",
-   *                               &interpreter_version );
-   *   }
-   *
-   * @note:
-   *   This property can be used with @FT_Property_Get also.
-   *
-   *   This property can be set via the `FREETYPE_PROPERTIES' environment
-   *   variable (using values `35', `38', or `40').
-   */
-
-
-  /**************************************************************************
-   *
-   * @enum:
-   *   TT_INTERPRETER_VERSION_XXX
-   *
-   * @description:
-   *   A list of constants used for the @interpreter-version property to
-   *   select the hinting engine for Truetype fonts.
-   *
-   *   The numeric value in the constant names represents the version
-   *   number as returned by the `GETINFO' bytecode instruction.
-   *
-   * @values:
-   *   TT_INTERPRETER_VERSION_35 ::
-   *     Version~35 corresponds to MS rasterizer v.1.7 as used e.g. in
-   *     Windows~98; only grayscale and B/W rasterizing is supported.
-   *
-   *   TT_INTERPRETER_VERSION_38 ::
-   *     Version~38 corresponds to MS rasterizer v.1.9; it is roughly
-   *     equivalent to the hinting provided by DirectWrite ClearType (as can
-   *     be found, for example, in the Internet Explorer~9 running on
-   *     Windows~7).  It is used in FreeType to select the `Infinality'
-   *     subpixel hinting code.  The code may be removed in a future
-   *     version.
-   *
-   *   TT_INTERPRETER_VERSION_40 ::
-   *     Version~40 corresponds to MS rasterizer v.2.1; it is roughly
-   *     equivalent to the hinting provided by DirectWrite ClearType (as can
-   *     be found, for example, in Microsoft's Edge Browser on Windows~10). 
-   *     It is used in FreeType to select the `minimal' subpixel hinting
-   *     code, a stripped-down and higher performance version of the
-   *     `Infinality' code.
-   *
-   * @note:
-   *   This property controls the behaviour of the bytecode interpreter
-   *   and thus how outlines get hinted.  It does *not* control how glyph
-   *   get rasterized!  In particular, it does not control subpixel color
-   *   filtering.
-   *
-   *   If FreeType has not been compiled with the configuration option
-   *   TT_CONFIG_OPTION_SUBPIXEL_HINTING, selecting version~38 or~40 causes
-   *   an `FT_Err_Unimplemented_Feature' error.
-   *
-   *   Depending on the graphics framework, Microsoft uses different
-   *   bytecode and rendering engines.  As a consequence, the version
-   *   numbers returned by a call to the `GETINFO' bytecode instruction are
-   *   more convoluted than desired.
-   *
-   *   Here are two tables that try to shed some light on the possible
-   *   values for the MS rasterizer engine, together with the additional
-   *   features introduced by it.
-   *
-   *   {
-   *     GETINFO framework               version feature
-   *     -------------------------------------------------------------------
-   *         3   GDI (Win 3.1),            v1.0  16-bit, first version
-   *             TrueImage
-   *        33   GDI (Win NT 3.1),         v1.5  32-bit
-   *             HP Laserjet
-   *        34   GDI (Win 95)              v1.6  font smoothing,
-   *                                             new SCANTYPE opcode
-   *        35   GDI (Win 98/2000)         v1.7  (UN)SCALED_COMPONENT_OFFSET
-   *                                               bits in composite glyphs
-   *        36   MGDI (Win CE 2)           v1.6+ classic ClearType
-   *        37   GDI (XP and later),       v1.8  ClearType
-   *             GDI+ old (before Vista)
-   *        38   GDI+ old (Vista, Win 7),  v1.9  subpixel ClearType,
-   *             WPF                             Y-direction ClearType,
-   *                                             additional error checking
-   *        39   DWrite (before Win 8)     v2.0  subpixel ClearType flags
-   *                                               in GETINFO opcode,
-   *                                             bug fixes
-   *        40   GDI+ (after Win 7),       v2.1  Y-direction ClearType flag
-   *             DWrite (Win 8)                    in GETINFO opcode,
-   *                                             Gray ClearType
-   *   }
-   *
-   *   The `version' field gives a rough orientation only, since some
-   *   applications provided certain features much earlier (as an example,
-   *   Microsoft Reader used subpixel and Y-direction ClearType already in
-   *   Windows 2000).  Similarly, updates to a given framework might include
-   *   improved hinting support.
-   *
-   *   {
-   *      version   sampling          rendering        comment
-   *               x        y       x           y
-   *     --------------------------------------------------------------
-   *       v1.0   normal  normal  B/W           B/W    bi-level
-   *       v1.6   high    high    gray          gray   grayscale
-   *       v1.8   high    normal  color-filter  B/W    (GDI) ClearType
-   *       v1.9   high    high    color-filter  gray   Color ClearType
-   *       v2.1   high    normal  gray          B/W    Gray ClearType
-   *       v2.1   high    high    gray          gray   Gray ClearType
-   *   }
-   *
-   *   Color and Gray ClearType are the two available variants of
-   *   `Y-direction ClearType', meaning grayscale rasterization along the
-   *   Y-direction; the name used in the TrueType specification for this
-   *   feature is `symmetric smoothing'.  `Classic ClearType' is the
-   *   original algorithm used before introducing a modified version in
-   *   Win~XP.  Another name for v1.6's grayscale rendering is `font
-   *   smoothing', and `Color ClearType' is sometimes also called `DWrite
-   *   ClearType'.  To differentiate between today's Color ClearType and the
-   *   earlier ClearType variant with B/W rendering along the vertical axis,
-   *   the latter is sometimes called `GDI ClearType'.
-   *
-   *   `Normal' and `high' sampling describe the (virtual) resolution to
-   *   access the rasterized outline after the hinting process.  `Normal'
-   *   means 1 sample per grid line (i.e., B/W).  In the current Microsoft
-   *   implementation, `high' means an extra virtual resolution of 16x16 (or
-   *   16x1) grid lines per pixel for bytecode instructions like `MIRP'.
-   *   After hinting, these 16 grid lines are mapped to 6x5 (or 6x1) grid
-   *   lines for color filtering if Color ClearType is activated.
-   *
-   *   Note that `Gray ClearType' is essentially the same as v1.6's
-   *   grayscale rendering.  However, the GETINFO instruction handles it
-   *   differently: v1.6 returns bit~12 (hinting for grayscale), while v2.1
-   *   returns bits~13 (hinting for ClearType), 18 (symmetrical smoothing),
-   *   and~19 (Gray ClearType).  Also, this mode respects bits 2 and~3 for
-   *   the version~1 gasp table exclusively (like Color ClearType), while
-   *   v1.6 only respects the values of version~0 (bits 0 and~1).
-   *
-   *   Keep in mind that the features of the above interpreter versions
-   *   might not map exactly to FreeType features or behavior because it is
-   *   a fundamentally different library with different internals.
-   *
-   */
-#define TT_INTERPRETER_VERSION_35  35
-#define TT_INTERPRETER_VERSION_38  38
-#define TT_INTERPRETER_VERSION_40  40
-
- /* */
-
-
-FT_END_HEADER
-
-
-#endif /* FTTTDRV_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/fttypes.h b/thirdparty/freetype/include/freetype/fttypes.h
index f638c2e54f..10571505a5 100644
--- a/thirdparty/freetype/include/freetype/fttypes.h
+++ b/thirdparty/freetype/include/freetype/fttypes.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fttypes.h                                                              */
-/*                                                                         */
-/*    FreeType simple types definitions (specification only).              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fttypes.h
+ *
+ *   FreeType simple types definitions (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTTYPES_H_
@@ -31,326 +31,327 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    basic_types                                                        */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Basic Data Types                                                   */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    The basic data types defined by the library.                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the basic data types defined by FreeType~2,  */
-  /*    ranging from simple scalar types to bitmap descriptors.  More      */
-  /*    font-specific structures are defined in a different section.       */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    FT_Byte                                                            */
-  /*    FT_Bytes                                                           */
-  /*    FT_Char                                                            */
-  /*    FT_Int                                                             */
-  /*    FT_UInt                                                            */
-  /*    FT_Int16                                                           */
-  /*    FT_UInt16                                                          */
-  /*    FT_Int32                                                           */
-  /*    FT_UInt32                                                          */
-  /*    FT_Int64                                                           */
-  /*    FT_UInt64                                                          */
-  /*    FT_Short                                                           */
-  /*    FT_UShort                                                          */
-  /*    FT_Long                                                            */
-  /*    FT_ULong                                                           */
-  /*    FT_Bool                                                            */
-  /*    FT_Offset                                                          */
-  /*    FT_PtrDist                                                         */
-  /*    FT_String                                                          */
-  /*    FT_Tag                                                             */
-  /*    FT_Error                                                           */
-  /*    FT_Fixed                                                           */
-  /*    FT_Pointer                                                         */
-  /*    FT_Pos                                                             */
-  /*    FT_Vector                                                          */
-  /*    FT_BBox                                                            */
-  /*    FT_Matrix                                                          */
-  /*    FT_FWord                                                           */
-  /*    FT_UFWord                                                          */
-  /*    FT_F2Dot14                                                         */
-  /*    FT_UnitVector                                                      */
-  /*    FT_F26Dot6                                                         */
-  /*    FT_Data                                                            */
-  /*                                                                       */
-  /*    FT_MAKE_TAG                                                        */
-  /*                                                                       */
-  /*    FT_Generic                                                         */
-  /*    FT_Generic_Finalizer                                               */
-  /*                                                                       */
-  /*    FT_Bitmap                                                          */
-  /*    FT_Pixel_Mode                                                      */
-  /*    FT_Palette_Mode                                                    */
-  /*    FT_Glyph_Format                                                    */
-  /*    FT_IMAGE_TAG                                                       */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Bool                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef of unsigned char, used for simple booleans.  As usual,   */
-  /*    values 1 and~0 represent true and false, respectively.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   basic_types
+   *
+   * @title:
+   *   Basic Data Types
+   *
+   * @abstract:
+   *   The basic data types defined by the library.
+   *
+   * @description:
+   *   This section contains the basic data types defined by FreeType~2,
+   *   ranging from simple scalar types to bitmap descriptors.  More
+   *   font-specific structures are defined in a different section.
+   *
+   * @order:
+   *   FT_Byte
+   *   FT_Bytes
+   *   FT_Char
+   *   FT_Int
+   *   FT_UInt
+   *   FT_Int16
+   *   FT_UInt16
+   *   FT_Int32
+   *   FT_UInt32
+   *   FT_Int64
+   *   FT_UInt64
+   *   FT_Short
+   *   FT_UShort
+   *   FT_Long
+   *   FT_ULong
+   *   FT_Bool
+   *   FT_Offset
+   *   FT_PtrDist
+   *   FT_String
+   *   FT_Tag
+   *   FT_Error
+   *   FT_Fixed
+   *   FT_Pointer
+   *   FT_Pos
+   *   FT_Vector
+   *   FT_BBox
+   *   FT_Matrix
+   *   FT_FWord
+   *   FT_UFWord
+   *   FT_F2Dot14
+   *   FT_UnitVector
+   *   FT_F26Dot6
+   *   FT_Data
+   *
+   *   FT_MAKE_TAG
+   *
+   *   FT_Generic
+   *   FT_Generic_Finalizer
+   *
+   *   FT_Bitmap
+   *   FT_Pixel_Mode
+   *   FT_Palette_Mode
+   *   FT_Glyph_Format
+   *   FT_IMAGE_TAG
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Bool
+   *
+   * @description:
+   *   A typedef of unsigned char, used for simple booleans.  As usual,
+   *   values 1 and~0 represent true and false, respectively.
+   */
   typedef unsigned char  FT_Bool;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_FWord                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A signed 16-bit integer used to store a distance in original font  */
-  /*    units.                                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_FWord
+   *
+   * @description:
+   *   A signed 16-bit integer used to store a distance in original font
+   *   units.
+   */
   typedef signed short  FT_FWord;   /* distance in FUnits */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_UFWord                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An unsigned 16-bit integer used to store a distance in original    */
-  /*    font units.                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_UFWord
+   *
+   * @description:
+   *   An unsigned 16-bit integer used to store a distance in original font
+   *   units.
+   */
   typedef unsigned short  FT_UFWord;  /* unsigned distance */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Char                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple typedef for the _signed_ char type.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Char
+   *
+   * @description:
+   *   A simple typedef for the _signed_ char type.
+   */
   typedef signed char  FT_Char;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Byte                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple typedef for the _unsigned_ char type.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Byte
+   *
+   * @description:
+   *   A simple typedef for the _unsigned_ char type.
+   */
   typedef unsigned char  FT_Byte;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Bytes                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for constant memory areas.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Bytes
+   *
+   * @description:
+   *   A typedef for constant memory areas.
+   */
   typedef const FT_Byte*  FT_Bytes;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Tag                                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for 32-bit tags (as used in the SFNT format).            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Tag
+   *
+   * @description:
+   *   A typedef for 32-bit tags (as used in the SFNT format).
+   */
   typedef FT_UInt32  FT_Tag;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_String                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple typedef for the char type, usually used for strings.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_String
+   *
+   * @description:
+   *   A simple typedef for the char type, usually used for strings.
+   */
   typedef char  FT_String;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Short                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for signed short.                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Short
+   *
+   * @description:
+   *   A typedef for signed short.
+   */
   typedef signed short  FT_Short;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_UShort                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for unsigned short.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_UShort
+   *
+   * @description:
+   *   A typedef for unsigned short.
+   */
   typedef unsigned short  FT_UShort;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Int                                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for the int type.                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Int
+   *
+   * @description:
+   *   A typedef for the int type.
+   */
   typedef signed int  FT_Int;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_UInt                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for the unsigned int type.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_UInt
+   *
+   * @description:
+   *   A typedef for the unsigned int type.
+   */
   typedef unsigned int  FT_UInt;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Long                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for signed long.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Long
+   *
+   * @description:
+   *   A typedef for signed long.
+   */
   typedef signed long  FT_Long;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_ULong                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A typedef for unsigned long.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_ULong
+   *
+   * @description:
+   *   A typedef for unsigned long.
+   */
   typedef unsigned long  FT_ULong;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_F2Dot14                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A signed 2.14 fixed-point type used for unit vectors.              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_F2Dot14
+   *
+   * @description:
+   *   A signed 2.14 fixed-point type used for unit vectors.
+   */
   typedef signed short  FT_F2Dot14;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_F26Dot6                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A signed 26.6 fixed-point type used for vectorial pixel            */
-  /*    coordinates.                                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_F26Dot6
+   *
+   * @description:
+   *   A signed 26.6 fixed-point type used for vectorial pixel coordinates.
+   */
   typedef signed long  FT_F26Dot6;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Fixed                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This type is used to store 16.16 fixed-point values, like scaling  */
-  /*    values or matrix coefficients.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Fixed
+   *
+   * @description:
+   *   This type is used to store 16.16 fixed-point values, like scaling
+   *   values or matrix coefficients.
+   */
   typedef signed long  FT_Fixed;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Error                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The FreeType error code type.  A value of~0 is always interpreted  */
-  /*    as a successful operation.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Error
+   *
+   * @description:
+   *   The FreeType error code type.  A value of~0 is always interpreted as a
+   *   successful operation.
+   */
   typedef int  FT_Error;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Pointer                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple typedef for a typeless pointer.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Pointer
+   *
+   * @description:
+   *   A simple typedef for a typeless pointer.
+   */
   typedef void*  FT_Pointer;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_Offset                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This is equivalent to the ANSI~C `size_t' type, i.e., the largest  */
-  /*    _unsigned_ integer type used to express a file size or position,   */
-  /*    or a memory block size.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_Offset
+   *
+   * @description:
+   *   This is equivalent to the ANSI~C `size_t` type, i.e., the largest
+   *   _unsigned_ integer type used to express a file size or position, or a
+   *   memory block size.
+   */
   typedef size_t  FT_Offset;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_PtrDist                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This is equivalent to the ANSI~C `ptrdiff_t' type, i.e., the       */
-  /*    largest _signed_ integer type used to express the distance         */
-  /*    between two pointers.                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_PtrDist
+   *
+   * @description:
+   *   This is equivalent to the ANSI~C `ptrdiff_t` type, i.e., the largest
+   *   _signed_ integer type used to express the distance between two
+   *   pointers.
+   */
   typedef ft_ptrdiff_t  FT_PtrDist;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_UnitVector                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple structure used to store a 2D vector unit vector.  Uses    */
-  /*    FT_F2Dot14 types.                                                  */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    x :: Horizontal coordinate.                                        */
-  /*                                                                       */
-  /*    y :: Vertical coordinate.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_UnitVector
+   *
+   * @description:
+   *   A simple structure used to store a 2D vector unit vector.  Uses
+   *   FT_F2Dot14 types.
+   *
+   * @fields:
+   *   x ::
+   *     Horizontal coordinate.
+   *
+   *   y ::
+   *     Vertical coordinate.
+   */
   typedef struct  FT_UnitVector_
   {
     FT_F2Dot14  x;
@@ -359,29 +360,33 @@ FT_BEGIN_HEADER
   } FT_UnitVector;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Matrix                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple structure used to store a 2x2 matrix.  Coefficients are   */
-  /*    in 16.16 fixed-point format.  The computation performed is:        */
-  /*                                                                       */
-  /*       {                                                               */
-  /*          x' = x*xx + y*xy                                             */
-  /*          y' = x*yx + y*yy                                             */
-  /*       }                                                               */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    xx :: Matrix coefficient.                                          */
-  /*                                                                       */
-  /*    xy :: Matrix coefficient.                                          */
-  /*                                                                       */
-  /*    yx :: Matrix coefficient.                                          */
-  /*                                                                       */
-  /*    yy :: Matrix coefficient.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Matrix
+   *
+   * @description:
+   *   A simple structure used to store a 2x2 matrix.  Coefficients are in
+   *   16.16 fixed-point format.  The computation performed is:
+   *
+   *   ```
+   *     x' = x*xx + y*xy
+   *     y' = x*yx + y*yy
+   *   ```
+   *
+   * @fields:
+   *   xx ::
+   *     Matrix coefficient.
+   *
+   *   xy ::
+   *     Matrix coefficient.
+   *
+   *   yx ::
+   *     Matrix coefficient.
+   *
+   *   yy ::
+   *     Matrix coefficient.
+   */
   typedef struct  FT_Matrix_
   {
     FT_Fixed  xx, xy;
@@ -390,19 +395,21 @@ FT_BEGIN_HEADER
   } FT_Matrix;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Data                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Read-only binary data represented as a pointer and a length.       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    pointer :: The data.                                               */
-  /*                                                                       */
-  /*    length  :: The length of the data in bytes.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Data
+   *
+   * @description:
+   *   Read-only binary data represented as a pointer and a length.
+   *
+   * @fields:
+   *   pointer ::
+   *     The data.
+   *
+   *   length ::
+   *     The length of the data in bytes.
+   */
   typedef struct  FT_Data_
   {
     const FT_Byte*  pointer;
@@ -411,51 +418,52 @@ FT_BEGIN_HEADER
   } FT_Data;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Generic_Finalizer                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Describe a function used to destroy the `client' data of any       */
-  /*    FreeType object.  See the description of the @FT_Generic type for  */
-  /*    details of usage.                                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    The address of the FreeType object that is under finalization.     */
-  /*    Its client data is accessed through its `generic' field.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_Generic_Finalizer
+   *
+   * @description:
+   *   Describe a function used to destroy the 'client' data of any FreeType
+   *   object.  See the description of the @FT_Generic type for details of
+   *   usage.
+   *
+   * @input:
+   *   The address of the FreeType object that is under finalization.  Its
+   *   client data is accessed through its `generic` field.
+   */
   typedef void  (*FT_Generic_Finalizer)( void*  object );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Generic                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Client applications often need to associate their own data to a    */
-  /*    variety of FreeType core objects.  For example, a text layout API  */
-  /*    might want to associate a glyph cache to a given size object.      */
-  /*                                                                       */
-  /*    Some FreeType object contains a `generic' field, of type           */
-  /*    FT_Generic, which usage is left to client applications and font    */
-  /*    servers.                                                           */
-  /*                                                                       */
-  /*    It can be used to store a pointer to client-specific data, as well */
-  /*    as the address of a `finalizer' function, which will be called by  */
-  /*    FreeType when the object is destroyed (for example, the previous   */
-  /*    client example would put the address of the glyph cache destructor */
-  /*    in the `finalizer' field).                                         */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    data      :: A typeless pointer to any client-specified data. This */
-  /*                 field is completely ignored by the FreeType library.  */
-  /*                                                                       */
-  /*    finalizer :: A pointer to a `generic finalizer' function, which    */
-  /*                 will be called when the object is destroyed.  If this */
-  /*                 field is set to NULL, no code will be called.         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Generic
+   *
+   * @description:
+   *   Client applications often need to associate their own data to a
+   *   variety of FreeType core objects.  For example, a text layout API
+   *   might want to associate a glyph cache to a given size object.
+   *
+   *   Some FreeType object contains a `generic` field, of type `FT_Generic`,
+   *   which usage is left to client applications and font servers.
+   *
+   *   It can be used to store a pointer to client-specific data, as well as
+   *   the address of a 'finalizer' function, which will be called by
+   *   FreeType when the object is destroyed (for example, the previous
+   *   client example would put the address of the glyph cache destructor in
+   *   the `finalizer` field).
+   *
+   * @fields:
+   *   data ::
+   *     A typeless pointer to any client-specified data. This field is
+   *     completely ignored by the FreeType library.
+   *
+   *   finalizer ::
+   *     A pointer to a 'generic finalizer' function, which will be called
+   *     when the object is destroyed.  If this field is set to `NULL`, no
+   *     code will be called.
+   */
   typedef struct  FT_Generic_
   {
     void*                 data;
@@ -464,19 +472,19 @@ FT_BEGIN_HEADER
   } FT_Generic;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_MAKE_TAG                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This macro converts four-letter tags that are used to label        */
-  /*    TrueType tables into an unsigned long, to be used within FreeType. */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The produced values *must* be 32-bit integers.  Don't redefine     */
-  /*    this macro.                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_MAKE_TAG
+   *
+   * @description:
+   *   This macro converts four-letter tags that are used to label TrueType
+   *   tables into an unsigned long, to be used within FreeType.
+   *
+   * @note:
+   *   The produced values **must** be 32-bit integers.  Don't redefine this
+   *   macro.
+   */
 #define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
           (FT_Tag)                        \
           ( ( (FT_ULong)_x1 << 24 ) |     \
@@ -494,53 +502,56 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    list_processing                                                    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   list_processing
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_ListNode                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*     Many elements and objects in FreeType are listed through an       */
-  /*     @FT_List record (see @FT_ListRec).  As its name suggests, an      */
-  /*     FT_ListNode is a handle to a single list element.                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_ListNode
+   *
+   * @description:
+   *    Many elements and objects in FreeType are listed through an @FT_List
+   *    record (see @FT_ListRec).  As its name suggests, an FT_ListNode is a
+   *    handle to a single list element.
+   */
   typedef struct FT_ListNodeRec_*  FT_ListNode;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    FT_List                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a list record (see @FT_ListRec).                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   FT_List
+   *
+   * @description:
+   *   A handle to a list record (see @FT_ListRec).
+   */
   typedef struct FT_ListRec_*  FT_List;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_ListNodeRec                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to hold a single list element.                    */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    prev :: The previous element in the list.  NULL if first.          */
-  /*                                                                       */
-  /*    next :: The next element in the list.  NULL if last.               */
-  /*                                                                       */
-  /*    data :: A typeless pointer to the listed object.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_ListNodeRec
+   *
+   * @description:
+   *   A structure used to hold a single list element.
+   *
+   * @fields:
+   *   prev ::
+   *     The previous element in the list.  `NULL` if first.
+   *
+   *   next ::
+   *     The next element in the list.  `NULL` if last.
+   *
+   *   data ::
+   *     A typeless pointer to the listed object.
+   */
   typedef struct  FT_ListNodeRec_
   {
     FT_ListNode  prev;
@@ -550,20 +561,22 @@ FT_BEGIN_HEADER
   } FT_ListNodeRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_ListRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to hold a simple doubly-linked list.  These are   */
-  /*    used in many parts of FreeType.                                    */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    head :: The head (first element) of doubly-linked list.            */
-  /*                                                                       */
-  /*    tail :: The tail (last element) of doubly-linked list.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_ListRec
+   *
+   * @description:
+   *   A structure used to hold a simple doubly-linked list.  These are used
+   *   in many parts of FreeType.
+   *
+   * @fields:
+   *   head ::
+   *     The head (first element) of doubly-linked list.
+   *
+   *   tail ::
+   *     The tail (last element) of doubly-linked list.
+   */
   typedef struct  FT_ListRec_
   {
     FT_ListNode  head;
@@ -575,13 +588,13 @@ FT_BEGIN_HEADER
 
 
 #define FT_IS_EMPTY( list )  ( (list).head == 0 )
-#define FT_BOOL( x )  ( (FT_Bool)( x ) )
+#define FT_BOOL( x )  ( (FT_Bool)( (x) != 0 ) )
 
   /* concatenate C tokens */
 #define FT_ERR_XCAT( x, y )  x ## y
 #define FT_ERR_CAT( x, y )   FT_ERR_XCAT( x, y )
 
-  /* see `ftmoderr.h' for descriptions of the following macros */
+  /* see `ftmoderr.h` for descriptions of the following macros */
 
 #define FT_ERR( e )  FT_ERR_CAT( FT_ERR_PREFIX, e )
 
diff --git a/thirdparty/freetype/include/freetype/ftwinfnt.h b/thirdparty/freetype/include/freetype/ftwinfnt.h
index 461c65b779..3437913d53 100644
--- a/thirdparty/freetype/include/freetype/ftwinfnt.h
+++ b/thirdparty/freetype/include/freetype/ftwinfnt.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftwinfnt.h                                                             */
-/*                                                                         */
-/*    FreeType API for accessing Windows fnt-specific data.                */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftwinfnt.h
+ *
+ *   FreeType API for accessing Windows fnt-specific data.
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTWINFNT_H_
@@ -32,44 +32,43 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    winfnt_fonts                                                       */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Window FNT Files                                                   */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Windows FNT specific API.                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the declaration of Windows FNT specific      */
-  /*    functions.                                                         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   winfnt_fonts
+   *
+   * @title:
+   *   Window FNT Files
+   *
+   * @abstract:
+   *   Windows FNT-specific API.
+   *
+   * @description:
+   *   This section contains the declaration of Windows FNT-specific
+   *   functions.
+   *
+   */
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   FT_WinFNT_ID_XXX
    *
    * @description:
-   *   A list of valid values for the `charset' byte in
-   *   @FT_WinFNT_HeaderRec.  Exact mapping tables for the various cpXXXX
-   *   encodings (except for cp1361) can be found at
-   *   ftp://ftp.unicode.org/Public in the MAPPINGS/VENDORS/MICSFT/WINDOWS
-   *   subdirectory.  cp1361 is roughly a superset of
-   *   MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT.
+   *   A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec. 
+   *   Exact mapping tables for the various 'cpXXXX' encodings (except for
+   *   'cp1361') can be found at 'ftp://ftp.unicode.org/Public' in the
+   *   `MAPPINGS/VENDORS/MICSFT/WINDOWS` subdirectory.  'cp1361' is roughly a
+   *   superset of `MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT`.
    *
    * @values:
    *   FT_WinFNT_ID_DEFAULT ::
-   *     This is used for font enumeration and font creation as a
-   *     `don't care' value.  Valid font files don't contain this value.
-   *     When querying for information about the character set of the font
-   *     that is currently selected into a specified device context, this
-   *     return value (of the related Windows API) simply denotes failure.
+   *     This is used for font enumeration and font creation as a 'don't
+   *     care' value.  Valid font files don't contain this value.  When
+   *     querying for information about the character set of the font that is
+   *     currently selected into a specified device context, this return
+   *     value (of the related Windows API) simply denotes failure.
    *
    *   FT_WinFNT_ID_SYMBOL ::
    *     There is no known mapping table available.
@@ -80,26 +79,27 @@ FT_BEGIN_HEADER
    *   FT_WinFNT_ID_OEM ::
    *     From Michael Poettgen <michael@poettgen.de>:
    *
-   *       The `Windows Font Mapping' article says that FT_WinFNT_ID_OEM
-   *       is used for the charset of vector fonts, like `modern.fon',
-   *       `roman.fon', and `script.fon' on Windows.
+   *     The 'Windows Font Mapping' article says that `FT_WinFNT_ID_OEM` is
+   *     used for the charset of vector fonts, like `modern.fon`,
+   *     `roman.fon`, and `script.fon` on Windows.
    *
-   *       The `CreateFont' documentation says: The FT_WinFNT_ID_OEM value
-   *       specifies a character set that is operating-system dependent.
+   *     The 'CreateFont' documentation says: The `FT_WinFNT_ID_OEM` value
+   *     specifies a character set that is operating-system dependent.
    *
-   *       The `IFIMETRICS' documentation from the `Windows Driver
-   *       Development Kit' says: This font supports an OEM-specific
-   *       character set.  The OEM character set is system dependent.
+   *     The 'IFIMETRICS' documentation from the 'Windows Driver Development
+   *     Kit' says: This font supports an OEM-specific character set.  The
+   *     OEM character set is system dependent.
    *
-   *       In general OEM, as opposed to ANSI (i.e., cp1252), denotes the
-   *       second default codepage that most international versions of
-   *       Windows have.  It is one of the OEM codepages from
+   *     In general OEM, as opposed to ANSI (i.e., 'cp1252'), denotes the
+   *     second default codepage that most international versions of Windows
+   *     have.  It is one of the OEM codepages from
    *
-   *         https://msdn.microsoft.com/en-us/goglobal/bb964655,
+   *     https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers
+   *     ,
    *
-   *       and is used for the `DOS boxes', to support legacy applications.
-   *       A German Windows version for example usually uses ANSI codepage
-   *       1252 and OEM codepage 850.
+   *     and is used for the 'DOS boxes', to support legacy applications.  A
+   *     German Windows version for example usually uses ANSI codepage 1252
+   *     and OEM codepage 850.
    *
    *   FT_WinFNT_ID_CP874 ::
    *     A superset of Thai TIS 620 and ISO 8859-11.
@@ -112,8 +112,8 @@ FT_BEGIN_HEADER
    *     ordering and minor deviations).
    *
    *   FT_WinFNT_ID_CP949 ::
-   *     A superset of Korean Hangul KS~C 5601-1987 (with different
-   *     ordering and minor deviations).
+   *     A superset of Korean Hangul KS~C 5601-1987 (with different ordering
+   *     and minor deviations).
    *
    *   FT_WinFNT_ID_CP950 ::
    *     A superset of traditional Chinese Big~5 ETen (with different
@@ -173,14 +173,14 @@ FT_BEGIN_HEADER
 #define FT_WinFNT_ID_OEM     255
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_WinFNT_HeaderRec                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Windows FNT Header info.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_WinFNT_HeaderRec
+   *
+   * @description:
+   *   Windows FNT Header info.
+   */
   typedef struct  FT_WinFNT_HeaderRec_
   {
     FT_UShort  version;
@@ -223,18 +223,18 @@ FT_BEGIN_HEADER
   } FT_WinFNT_HeaderRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_WinFNT_Header                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an @FT_WinFNT_HeaderRec structure.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_WinFNT_Header
+   *
+   * @description:
+   *   A handle to an @FT_WinFNT_HeaderRec structure.
+   */
   typedef struct FT_WinFNT_HeaderRec_*  FT_WinFNT_Header;
 
 
-  /**********************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_WinFNT_Header
@@ -243,10 +243,12 @@ FT_BEGIN_HEADER
    *    Retrieve a Windows FNT font info header.
    *
    * @input:
-   *    face    :: A handle to the input face.
+   *    face ::
+   *      A handle to the input face.
    *
    * @output:
-   *    aheader :: The WinFNT header.
+   *    aheader ::
+   *      The WinFNT header.
    *
    * @return:
    *   FreeType error code.  0~means success.
diff --git a/thirdparty/freetype/include/freetype/internal/autohint.h b/thirdparty/freetype/include/freetype/internal/autohint.h
index f4d308f68c..f64c28bb2c 100644
--- a/thirdparty/freetype/include/freetype/internal/autohint.h
+++ b/thirdparty/freetype/include/freetype/internal/autohint.h
@@ -1,73 +1,73 @@
-/***************************************************************************/
-/*                                                                         */
-/*  autohint.h                                                             */
-/*                                                                         */
-/*    High-level `autohint' module-specific interface (specification).     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The auto-hinter is used to load and automatically hint glyphs if a    */
-  /* format-specific hinter isn't available.                               */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * autohint.h
+ *
+ *   High-level 'autohint' module-specific interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * The auto-hinter is used to load and automatically hint glyphs if a
+   * format-specific hinter isn't available.
+   *
+   */
 
 
 #ifndef AUTOHINT_H_
 #define AUTOHINT_H_
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* A small technical note regarding automatic hinting in order to        */
-  /* clarify this module interface.                                        */
-  /*                                                                       */
-  /* An automatic hinter might compute two kinds of data for a given face: */
-  /*                                                                       */
-  /* - global hints: Usually some metrics that describe global properties  */
-  /*                 of the face.  It is computed by scanning more or less */
-  /*                 aggressively the glyphs in the face, and thus can be  */
-  /*                 very slow to compute (even if the size of global      */
-  /*                 hints is really small).                               */
-  /*                                                                       */
-  /* - glyph hints:  These describe some important features of the glyph   */
-  /*                 outline, as well as how to align them.  They are      */
-  /*                 generally much faster to compute than global hints.   */
-  /*                                                                       */
-  /* The current FreeType auto-hinter does a pretty good job while         */
-  /* performing fast computations for both global and glyph hints.         */
-  /* However, we might be interested in introducing more complex and       */
-  /* powerful algorithms in the future, like the one described in the John */
-  /* D. Hobby paper, which unfortunately requires a lot more horsepower.   */
-  /*                                                                       */
-  /* Because a sufficiently sophisticated font management system would     */
-  /* typically implement an LRU cache of opened face objects to reduce     */
-  /* memory usage, it is a good idea to be able to avoid recomputing       */
-  /* global hints every time the same face is re-opened.                   */
-  /*                                                                       */
-  /* We thus provide the ability to cache global hints outside of the face */
-  /* object, in order to speed up font re-opening time.  Of course, this   */
-  /* feature is purely optional, so most client programs won't even notice */
-  /* it.                                                                   */
-  /*                                                                       */
-  /* I initially thought that it would be a good idea to cache the glyph   */
-  /* hints too.  However, my general idea now is that if you really need   */
-  /* to cache these too, you are simply in need of a new font format,      */
-  /* where all this information could be stored within the font file and   */
-  /* decoded on the fly.                                                   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * A small technical note regarding automatic hinting in order to clarify
+   * this module interface.
+   *
+   * An automatic hinter might compute two kinds of data for a given face:
+   *
+   * - global hints: Usually some metrics that describe global properties
+   *                 of the face.  It is computed by scanning more or less
+   *                 aggressively the glyphs in the face, and thus can be
+   *                 very slow to compute (even if the size of global hints
+   *                 is really small).
+   *
+   * - glyph hints: These describe some important features of the glyph
+   *                 outline, as well as how to align them.  They are
+   *                 generally much faster to compute than global hints.
+   *
+   * The current FreeType auto-hinter does a pretty good job while performing
+   * fast computations for both global and glyph hints.  However, we might be
+   * interested in introducing more complex and powerful algorithms in the
+   * future, like the one described in the John D. Hobby paper, which
+   * unfortunately requires a lot more horsepower.
+   *
+   * Because a sufficiently sophisticated font management system would
+   * typically implement an LRU cache of opened face objects to reduce memory
+   * usage, it is a good idea to be able to avoid recomputing global hints
+   * every time the same face is re-opened.
+   *
+   * We thus provide the ability to cache global hints outside of the face
+   * object, in order to speed up font re-opening time.  Of course, this
+   * feature is purely optional, so most client programs won't even notice
+   * it.
+   *
+   * I initially thought that it would be a good idea to cache the glyph
+   * hints too.  However, my general idea now is that if you really need to
+   * cache these too, you are simply in need of a new font format, where all
+   * this information could be stored within the font file and decoded on the
+   * fly.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -80,27 +80,31 @@ FT_BEGIN_HEADER
   typedef struct FT_AutoHinterRec_  *FT_AutoHinter;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_AutoHinter_GlobalGetFunc                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Retrieve the global hints computed for a given face object.  The   */
-  /*    resulting data is dissociated from the face and will survive a     */
-  /*    call to FT_Done_Face().  It must be discarded through the API      */
-  /*    FT_AutoHinter_GlobalDoneFunc().                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    hinter       :: A handle to the source auto-hinter.                */
-  /*                                                                       */
-  /*    face         :: A handle to the source face object.                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    global_hints :: A typeless pointer to the global hints.            */
-  /*                                                                       */
-  /*    global_len   :: The size in bytes of the global hints.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_AutoHinter_GlobalGetFunc
+   *
+   * @description:
+   *   Retrieve the global hints computed for a given face object.  The
+   *   resulting data is dissociated from the face and will survive a call to
+   *   FT_Done_Face().  It must be discarded through the API
+   *   FT_AutoHinter_GlobalDoneFunc().
+   *
+   * @input:
+   *   hinter ::
+   *     A handle to the source auto-hinter.
+   *
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @output:
+   *   global_hints ::
+   *     A typeless pointer to the global hints.
+   *
+   *   global_len ::
+   *     The size in bytes of the global hints.
+   */
   typedef void
   (*FT_AutoHinter_GlobalGetFunc)( FT_AutoHinter  hinter,
                                   FT_Face        face,
@@ -108,69 +112,76 @@ FT_BEGIN_HEADER
                                   long*          global_len );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_AutoHinter_GlobalDoneFunc                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Discard the global hints retrieved through                         */
-  /*    FT_AutoHinter_GlobalGetFunc().  This is the only way these hints   */
-  /*    are freed from memory.                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    hinter :: A handle to the auto-hinter module.                      */
-  /*                                                                       */
-  /*    global :: A pointer to retrieved global hints to discard.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_AutoHinter_GlobalDoneFunc
+   *
+   * @description:
+   *   Discard the global hints retrieved through
+   *   FT_AutoHinter_GlobalGetFunc().  This is the only way these hints are
+   *   freed from memory.
+   *
+   * @input:
+   *   hinter ::
+   *     A handle to the auto-hinter module.
+   *
+   *   global ::
+   *     A pointer to retrieved global hints to discard.
+   */
   typedef void
   (*FT_AutoHinter_GlobalDoneFunc)( FT_AutoHinter  hinter,
                                    void*          global );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_AutoHinter_GlobalResetFunc                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used to recompute the global metrics in a given   */
-  /*    font.  This is useful when global font data changes (e.g. Multiple */
-  /*    Masters fonts where blend coordinates change).                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    hinter :: A handle to the source auto-hinter.                      */
-  /*                                                                       */
-  /*    face   :: A handle to the face.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_AutoHinter_GlobalResetFunc
+   *
+   * @description:
+   *   This function is used to recompute the global metrics in a given font.
+   *   This is useful when global font data changes (e.g. Multiple Masters
+   *   fonts where blend coordinates change).
+   *
+   * @input:
+   *   hinter ::
+   *     A handle to the source auto-hinter.
+   *
+   *   face ::
+   *     A handle to the face.
+   */
   typedef void
   (*FT_AutoHinter_GlobalResetFunc)( FT_AutoHinter  hinter,
                                     FT_Face        face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_AutoHinter_GlyphLoadFunc                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used to load, scale, and automatically hint a     */
-  /*    glyph from a given face.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to the face.                               */
-  /*                                                                       */
-  /*    glyph_index :: The glyph index.                                    */
-  /*                                                                       */
-  /*    load_flags  :: The load flags.                                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function is capable of loading composite glyphs by hinting    */
-  /*    each sub-glyph independently (which improves quality).             */
-  /*                                                                       */
-  /*    It will call the font driver with @FT_Load_Glyph, with             */
-  /*    @FT_LOAD_NO_SCALE set.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   FT_AutoHinter_GlyphLoadFunc
+   *
+   * @description:
+   *   This function is used to load, scale, and automatically hint a glyph
+   *   from a given face.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the face.
+   *
+   *   glyph_index ::
+   *     The glyph index.
+   *
+   *   load_flags ::
+   *     The load flags.
+   *
+   * @note:
+   *   This function is capable of loading composite glyphs by hinting each
+   *   sub-glyph independently (which improves quality).
+   *
+   *   It will call the font driver with @FT_Load_Glyph, with
+   *   @FT_LOAD_NO_SCALE set.
+   */
   typedef FT_Error
   (*FT_AutoHinter_GlyphLoadFunc)( FT_AutoHinter  hinter,
                                   FT_GlyphSlot   slot,
@@ -179,14 +190,14 @@ FT_BEGIN_HEADER
                                   FT_Int32       load_flags );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_AutoHinter_InterfaceRec                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The auto-hinter module's interface.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_AutoHinter_InterfaceRec
+   *
+   * @description:
+   *   The auto-hinter module's interface.
+   */
   typedef struct  FT_AutoHinter_InterfaceRec_
   {
     FT_AutoHinter_GlobalResetFunc  reset_face;
@@ -197,8 +208,6 @@ FT_BEGIN_HEADER
   } FT_AutoHinter_InterfaceRec, *FT_AutoHinter_Interface;
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_AUTOHINTER_INTERFACE(       \
           class_,                             \
           reset_face_,                        \
@@ -214,27 +223,6 @@ FT_BEGIN_HEADER
     load_glyph_                               \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_AUTOHINTER_INTERFACE(                            \
-          class_,                                                  \
-          reset_face_,                                             \
-          get_global_hints_,                                       \
-          done_global_hints_,                                      \
-          load_glyph_ )                                            \
-  void                                                             \
-  FT_Init_Class_ ## class_( FT_Library                   library,  \
-                            FT_AutoHinter_InterfaceRec*  clazz )   \
-  {                                                                \
-    FT_UNUSED( library );                                          \
-                                                                   \
-    clazz->reset_face        = reset_face_;                        \
-    clazz->get_global_hints  = get_global_hints_;                  \
-    clazz->done_global_hints = done_global_hints_;                 \
-    clazz->load_glyph        = load_glyph_;                        \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
 
 FT_END_HEADER
 
diff --git a/thirdparty/freetype/include/freetype/internal/cffotypes.h b/thirdparty/freetype/include/freetype/internal/cffotypes.h
index 57e7591d41..b26893eab3 100644
--- a/thirdparty/freetype/include/freetype/internal/cffotypes.h
+++ b/thirdparty/freetype/include/freetype/internal/cffotypes.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffotypes.h                                                            */
-/*                                                                         */
-/*    Basic OpenType/CFF object type definitions (specification).          */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffotypes.h
+ *
+ *   Basic OpenType/CFF object type definitions (specification).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFOTYPES_H_
@@ -33,14 +33,14 @@ FT_BEGIN_HEADER
   typedef TT_Face  CFF_Face;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CFF_Size                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an OpenType size object.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   CFF_Size
+   *
+   * @description:
+   *   A handle to an OpenType size object.
+   */
   typedef struct  CFF_SizeRec_
   {
     FT_SizeRec  root;
@@ -49,14 +49,14 @@ FT_BEGIN_HEADER
   } CFF_SizeRec, *CFF_Size;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CFF_GlyphSlot                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to an OpenType glyph slot object.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   CFF_GlyphSlot
+   *
+   * @description:
+   *   A handle to an OpenType glyph slot object.
+   */
   typedef struct  CFF_GlyphSlotRec_
   {
     FT_GlyphSlotRec  root;
@@ -70,14 +70,14 @@ FT_BEGIN_HEADER
   } CFF_GlyphSlotRec, *CFF_GlyphSlot;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CFF_Internal                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The interface to the `internal' field of `FT_Size'.                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   CFF_Internal
+   *
+   * @description:
+   *   The interface to the 'internal' field of `FT_Size`.
+   */
   typedef struct  CFF_InternalRec_
   {
     PSH_Globals  topfont;
@@ -86,10 +86,10 @@ FT_BEGIN_HEADER
   } CFF_InternalRec, *CFF_Internal;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Subglyph transformation record.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Subglyph transformation record.
+   */
   typedef struct  CFF_Transform_
   {
     FT_Fixed    xx, xy;     /* transformation matrix coefficients */
diff --git a/thirdparty/freetype/include/freetype/internal/cfftypes.h b/thirdparty/freetype/include/freetype/internal/cfftypes.h
index 7c07e1a376..2fc905ec79 100644
--- a/thirdparty/freetype/include/freetype/internal/cfftypes.h
+++ b/thirdparty/freetype/include/freetype/internal/cfftypes.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cfftypes.h                                                             */
-/*                                                                         */
-/*    Basic OpenType/CFF type definitions and interface (specification     */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cfftypes.h
+ *
+ *   Basic OpenType/CFF type definitions and interface (specification
+ *   only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFTYPES_H_
@@ -33,34 +33,39 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CFF_IndexRec                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model a CFF Index table.                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    stream      :: The source input stream.                            */
-  /*                                                                       */
-  /*    start       :: The position of the first index byte in the         */
-  /*                   input stream.                                       */
-  /*                                                                       */
-  /*    count       :: The number of elements in the index.                */
-  /*                                                                       */
-  /*    off_size    :: The size in bytes of object offsets in index.       */
-  /*                                                                       */
-  /*    data_offset :: The position of first data byte in the index's      */
-  /*                   bytes.                                              */
-  /*                                                                       */
-  /*    data_size   :: The size of the data table in this index.           */
-  /*                                                                       */
-  /*    offsets     :: A table of element offsets in the index.  Must be   */
-  /*                   loaded explicitly.                                  */
-  /*                                                                       */
-  /*    bytes       :: If the index is loaded in memory, its bytes.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CFF_IndexRec
+   *
+   * @description:
+   *   A structure used to model a CFF Index table.
+   *
+   * @fields:
+   *   stream ::
+   *     The source input stream.
+   *
+   *   start ::
+   *     The position of the first index byte in the input stream.
+   *
+   *   count ::
+   *     The number of elements in the index.
+   *
+   *   off_size ::
+   *     The size in bytes of object offsets in index.
+   *
+   *   data_offset ::
+   *     The position of first data byte in the index's bytes.
+   *
+   *   data_size ::
+   *     The size of the data table in this index.
+   *
+   *   offsets ::
+   *     A table of element offsets in the index.  Must be loaded explicitly.
+   *
+   *   bytes ::
+   *     If the index is loaded in memory, its bytes.
+   */
   typedef struct  CFF_IndexRec_
   {
     FT_Stream  stream;
diff --git a/thirdparty/freetype/include/freetype/internal/ftcalc.h b/thirdparty/freetype/include/freetype/internal/ftcalc.h
index 818a812359..2986ec359b 100644
--- a/thirdparty/freetype/include/freetype/internal/ftcalc.h
+++ b/thirdparty/freetype/include/freetype/internal/ftcalc.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcalc.h                                                               */
-/*                                                                         */
-/*    Arithmetic computations (specification).                             */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcalc.h
+ *
+ *   Arithmetic computations (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTCALC_H_
@@ -27,11 +27,11 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FT_MulDiv() and FT_MulFix() are declared in freetype.h.               */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * FT_MulDiv() and FT_MulFix() are declared in freetype.h.
+   *
+   */
 
 #ifndef  FT_CONFIG_OPTION_NO_ASSEMBLER
   /* Provide assembler fragments for performance-critical functions. */
@@ -246,29 +246,32 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_MulDiv_No_Round                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A very simple function used to perform the computation `(a*b)/c'   */
-  /*    (without rounding) with maximum accuracy (it uses a 64-bit         */
-  /*    intermediate integer whenever necessary).                          */
-  /*                                                                       */
-  /*    This function isn't necessarily as fast as some processor specific */
-  /*    operations, but is at least completely portable.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    a :: The first multiplier.                                         */
-  /*    b :: The second multiplier.                                        */
-  /*    c :: The divisor.                                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The result of `(a*b)/c'.  This function never traps when trying to */
-  /*    divide by zero; it simply returns `MaxInt' or `MinInt' depending   */
-  /*    on the signs of `a' and `b'.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_MulDiv_No_Round
+   *
+   * @description:
+   *   A very simple function used to perform the computation '(a*b)/c'
+   *   (without rounding) with maximum accuracy (it uses a 64-bit
+   *   intermediate integer whenever necessary).
+   *
+   *   This function isn't necessarily as fast as some processor-specific
+   *   operations, but is at least completely portable.
+   *
+   * @input:
+   *   a ::
+   *     The first multiplier.
+   *   b ::
+   *     The second multiplier.
+   *   c ::
+   *     The divisor.
+   *
+   * @return:
+   *   The result of '(a*b)/c'.  This function never traps when trying to
+   *   divide by zero; it simply returns 'MaxInt' or 'MinInt' depending on
+   *   the signs of 'a' and 'b'.
+   */
   FT_BASE( FT_Long )
   FT_MulDiv_No_Round( FT_Long  a,
                       FT_Long  b,
@@ -276,12 +279,11 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A variant of FT_Matrix_Multiply which scales its result afterwards.
-   *  The idea is that both `a' and `b' are scaled by factors of 10 so that
-   *  the values are as precise as possible to get a correct result during
-   *  the 64bit multiplication.  Let `sa' and `sb' be the scaling factors of
-   *  `a' and `b', respectively, then the scaling factor of the result is
-   *  `sa*sb'.
+   * A variant of FT_Matrix_Multiply which scales its result afterwards.  The
+   * idea is that both `a' and `b' are scaled by factors of 10 so that the
+   * values are as precise as possible to get a correct result during the
+   * 64bit multiplication.  Let `sa' and `sb' be the scaling factors of `a'
+   * and `b', respectively, then the scaling factor of the result is `sa*sb'.
    */
   FT_BASE( void )
   FT_Matrix_Multiply_Scaled( const FT_Matrix*  a,
@@ -290,8 +292,23 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A variant of FT_Vector_Transform.  See comments for
-   *  FT_Matrix_Multiply_Scaled.
+   * Check a matrix.  If the transformation would lead to extreme shear or
+   * extreme scaling, for example, return 0.  If everything is OK, return 1.
+   *
+   * Based on geometric considerations we use the following inequality to
+   * identify a degenerate matrix.
+   *
+   *   50 * abs(xx*yy - xy*yx) < xx^2 + xy^2 + yx^2 + yy^2
+   *
+   * Value 50 is heuristic.
+   */
+  FT_BASE( FT_Bool )
+  FT_Matrix_Check( const FT_Matrix*  matrix );
+
+
+  /*
+   * A variant of FT_Vector_Transform.  See comments for
+   * FT_Matrix_Multiply_Scaled.
    */
   FT_BASE( void )
   FT_Vector_Transform_Scaled( FT_Vector*        vector,
@@ -300,22 +317,22 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  This function normalizes a vector and returns its original length.
-   *  The normalized vector is a 16.16 fixed-point unit vector with length
-   *  close to 0x10000.  The accuracy of the returned length is limited to
-   *  16 bits also.  The function utilizes quick inverse square root
-   *  approximation without divisions and square roots relying on Newton's
-   *  iterations instead.
+   * This function normalizes a vector and returns its original length.  The
+   * normalized vector is a 16.16 fixed-point unit vector with length close
+   * to 0x10000.  The accuracy of the returned length is limited to 16 bits
+   * also.  The function utilizes quick inverse square root approximation
+   * without divisions and square roots relying on Newton's iterations
+   * instead.
    */
   FT_BASE( FT_UInt32 )
   FT_Vector_NormLen( FT_Vector*  vector );
 
 
   /*
-   *  Return -1, 0, or +1, depending on the orientation of a given corner.
-   *  We use the Cartesian coordinate system, with positive vertical values
-   *  going upwards.  The function returns +1 if the corner turns to the
-   *  left, -1 to the right, and 0 for undecidable cases.
+   * Return -1, 0, or +1, depending on the orientation of a given corner.  We
+   * use the Cartesian coordinate system, with positive vertical values going
+   * upwards.  The function returns +1 if the corner turns to the left, -1 to
+   * the right, and 0 for undecidable cases.
    */
   FT_BASE( FT_Int )
   ft_corner_orientation( FT_Pos  in_x,
@@ -325,9 +342,9 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  Return TRUE if a corner is flat or nearly flat.  This is equivalent to
-   *  saying that the corner point is close to its neighbors, or inside an
-   *  ellipse defined by the neighbor focal points to be more precise.
+   * Return TRUE if a corner is flat or nearly flat.  This is equivalent to
+   * saying that the corner point is close to its neighbors, or inside an
+   * ellipse defined by the neighbor focal points to be more precise.
    */
   FT_BASE( FT_Int )
   ft_corner_is_flat( FT_Pos  in_x,
@@ -337,10 +354,11 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  Return the most significant bit index.
+   * Return the most significant bit index.
    */
 
 #ifndef  FT_CONFIG_OPTION_NO_ASSEMBLER
+
 #if defined( __GNUC__ )                                          && \
     ( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) )
 
@@ -352,9 +370,34 @@ FT_BEGIN_HEADER
 
 #define FT_MSB( x )  ( 31 - __builtin_clzl( x ) )
 
+#endif /* __GNUC__ */
+
+
+#elif defined( _MSC_VER ) && ( _MSC_VER >= 1400 )
+
+#if FT_SIZEOF_INT == 4
+
+#include <intrin.h>
+
+  static __inline FT_Int32
+  FT_MSB_i386( FT_UInt32  x )
+  {
+    unsigned long  where;
+
+
+    /* not available in older VC versions */
+    _BitScanReverse( &where, x );
+
+    return (FT_Int32)where;
+  }
+
+#define FT_MSB( x )  ( FT_MSB_i386( x ) )
+
 #endif
 
-#endif /* __GNUC__ */
+#endif /* _MSC_VER */
+
+
 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
 
 #ifndef FT_MSB
@@ -366,8 +409,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  Return sqrt(x*x+y*y), which is the same as `FT_Vector_Length' but uses
-   *  two fixed-point arguments instead.
+   * Return sqrt(x*x+y*y), which is the same as `FT_Vector_Length' but uses
+   * two fixed-point arguments instead.
    */
   FT_BASE( FT_Fixed )
   FT_Hypot( FT_Fixed  x,
@@ -376,23 +419,24 @@ FT_BEGIN_HEADER
 
 #if 0
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_SqrtFixed                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the square root of a 16.16 fixed-point value.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    x :: The value to compute the root for.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The result of `sqrt(x)'.                                           */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function is not very fast.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_SqrtFixed
+   *
+   * @description:
+   *   Computes the square root of a 16.16 fixed-point value.
+   *
+   * @input:
+   *   x ::
+   *     The value to compute the root for.
+   *
+   * @return:
+   *   The result of 'sqrt(x)'.
+   *
+   * @note:
+   *   This function is not very fast.
+   */
   FT_BASE( FT_Int32 )
   FT_SqrtFixed( FT_Int32  x );
 
@@ -409,14 +453,23 @@ FT_BEGIN_HEADER
                                         : ( -( ( 32 - (x) ) & -64 ) ) )
 
   /*
-   *  The following macros have two purposes.
+   * The following macros have two purposes.
    *
-   *  . Tag places where overflow is expected and harmless.
+   * - Tag places where overflow is expected and harmless.
    *
-   *  . Avoid run-time sanitizer errors.
+   * - Avoid run-time sanitizer errors.
    *
-   *  Use with care!
+   * Use with care!
    */
+#define ADD_INT( a, b )                           \
+          (FT_Int)( (FT_UInt)(a) + (FT_UInt)(b) )
+#define SUB_INT( a, b )                           \
+          (FT_Int)( (FT_UInt)(a) - (FT_UInt)(b) )
+#define MUL_INT( a, b )                           \
+          (FT_Int)( (FT_UInt)(a) * (FT_UInt)(b) )
+#define NEG_INT( a )                              \
+          (FT_Int)( (FT_UInt)0 - (FT_UInt)(a) )
+
 #define ADD_LONG( a, b )                             \
           (FT_Long)( (FT_ULong)(a) + (FT_ULong)(b) )
 #define SUB_LONG( a, b )                             \
@@ -435,6 +488,19 @@ FT_BEGIN_HEADER
 #define NEG_INT32( a )                                  \
           (FT_Int32)( (FT_UInt32)0 - (FT_UInt32)(a) )
 
+#ifdef FT_LONG64
+
+#define ADD_INT64( a, b )                               \
+          (FT_Int64)( (FT_UInt64)(a) + (FT_UInt64)(b) )
+#define SUB_INT64( a, b )                               \
+          (FT_Int64)( (FT_UInt64)(a) - (FT_UInt64)(b) )
+#define MUL_INT64( a, b )                               \
+          (FT_Int64)( (FT_UInt64)(a) * (FT_UInt64)(b) )
+#define NEG_INT64( a )                                  \
+          (FT_Int64)( (FT_UInt64)0 - (FT_UInt64)(a) )
+
+#endif /* FT_LONG64 */
+
 
 FT_END_HEADER
 
diff --git a/thirdparty/freetype/include/freetype/internal/ftdebug.h b/thirdparty/freetype/include/freetype/internal/ftdebug.h
index 292a4eedb8..54a9673afa 100644
--- a/thirdparty/freetype/include/freetype/internal/ftdebug.h
+++ b/thirdparty/freetype/include/freetype/internal/ftdebug.h
@@ -1,24 +1,24 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftdebug.h                                                              */
-/*                                                                         */
-/*    Debugging and logging component (specification).                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/*                                                                         */
-/*  IMPORTANT: A description of FreeType's debugging support can be        */
-/*             found in `docs/DEBUG.TXT'.  Read it if you need to use or   */
-/*             understand this code.                                       */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftdebug.h
+ *
+ *   Debugging and logging component (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ *
+ * IMPORTANT: A description of FreeType's debugging support can be
+ *             found in 'docs/DEBUG.TXT'.  Read it if you need to use or
+ *             understand this code.
+ *
+ */
 
 
 #ifndef FTDEBUG_H_
@@ -42,12 +42,12 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define the trace enums as well as the trace levels array when they    */
-  /* are needed.                                                           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Define the trace enums as well as the trace levels array when they are
+   * needed.
+   *
+   */
 
 #ifdef FT_DEBUG_LEVEL_TRACE
 
@@ -62,32 +62,37 @@ FT_BEGIN_HEADER
   } FT_Trace;
 
 
-  /* defining the array of trace levels, provided by `src/base/ftdebug.c' */
-  extern int  ft_trace_levels[trace_count];
+  /* a pointer to the array of trace levels, */
+  /* provided by `src/base/ftdebug.c'        */
+  extern int*  ft_trace_levels;
 
 #undef FT_TRACE_DEF
 
 #endif /* FT_DEBUG_LEVEL_TRACE */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define the FT_TRACE macro                                             */
-  /*                                                                       */
-  /* IMPORTANT!                                                            */
-  /*                                                                       */
-  /* Each component must define the macro FT_COMPONENT to a valid FT_Trace */
-  /* value before using any TRACE macro.                                   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Define the FT_TRACE macro
+   *
+   * IMPORTANT!
+   *
+   * Each component must define the macro FT_COMPONENT to a valid FT_Trace
+   * value before using any TRACE macro.
+   *
+   */
 
 #ifdef FT_DEBUG_LEVEL_TRACE
 
-#define FT_TRACE( level, varformat )                      \
-          do                                              \
-          {                                               \
-            if ( ft_trace_levels[FT_COMPONENT] >= level ) \
-              FT_Message varformat;                       \
+  /* we need two macros here to make cpp expand `FT_COMPONENT' */
+#define FT_TRACE_COMP( x )   FT_TRACE_COMP_( x )
+#define FT_TRACE_COMP_( x )  trace_ ## x
+
+#define FT_TRACE( level, varformat )                                       \
+          do                                                               \
+          {                                                                \
+            if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
+              FT_Message varformat;                                        \
           } while ( 0 )
 
 #else /* !FT_DEBUG_LEVEL_TRACE */
@@ -97,62 +102,85 @@ FT_BEGIN_HEADER
 #endif /* !FT_DEBUG_LEVEL_TRACE */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Trace_Get_Count                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the number of available trace components.                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The number of trace components.  0 if FreeType 2 is not built with */
-  /*    FT_DEBUG_LEVEL_TRACE definition.                                   */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function may be useful if you want to access elements of      */
-  /*    the internal `ft_trace_levels' array by an index.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Trace_Get_Count
+   *
+   * @description:
+   *   Return the number of available trace components.
+   *
+   * @return:
+   *   The number of trace components.  0 if FreeType 2 is not built with
+   *   FT_DEBUG_LEVEL_TRACE definition.
+   *
+   * @note:
+   *   This function may be useful if you want to access elements of the
+   *   internal trace levels array by an index.
+   */
   FT_BASE( FT_Int )
   FT_Trace_Get_Count( void );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Trace_Get_Name                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the name of a trace component.                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    The index of the trace component.                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The name of the trace component.  This is a statically allocated   */
-  /*    C string, so do not free it after use.  NULL if FreeType 2 is not  */
-  /*    built with FT_DEBUG_LEVEL_TRACE definition.                        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Use @FT_Trace_Get_Count to get the number of available trace       */
-  /*    components.                                                        */
-  /*                                                                       */
-  /*    This function may be useful if you want to control FreeType 2's    */
-  /*    debug level in your application.                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Trace_Get_Name
+   *
+   * @description:
+   *   Return the name of a trace component.
+   *
+   * @input:
+   *   The index of the trace component.
+   *
+   * @return:
+   *   The name of the trace component.  This is a statically allocated
+   *   C~string, so do not free it after use.  `NULL` if FreeType is not
+   *   built with FT_DEBUG_LEVEL_TRACE definition.
+   *
+   * @note:
+   *   Use @FT_Trace_Get_Count to get the number of available trace
+   *   components.
+   */
   FT_BASE( const char* )
   FT_Trace_Get_Name( FT_Int  idx );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* You need two opening and closing parentheses!                         */
-  /*                                                                       */
-  /* Example: FT_TRACE0(( "Value is %i", foo ))                            */
-  /*                                                                       */
-  /* Output of the FT_TRACEX macros is sent to stderr.                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Trace_Disable
+   *
+   * @description:
+   *   Switch off tracing temporarily.  It can be activated again with
+   *   @FT_Trace_Enable.
+   */
+  FT_BASE( void )
+  FT_Trace_Disable( void );
+
+
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Trace_Enable
+   *
+   * @description:
+   *   Activate tracing.  Use it after tracing has been switched off with
+   *   @FT_Trace_Disable.
+   */
+  FT_BASE( void )
+  FT_Trace_Enable( void );
+
+
+  /**************************************************************************
+   *
+   * You need two opening and closing parentheses!
+   *
+   * Example: FT_TRACE0(( "Value is %i", foo ))
+   *
+   * Output of the FT_TRACEX macros is sent to stderr.
+   *
+   */
 
 #define FT_TRACE0( varformat )  FT_TRACE( 0, varformat )
 #define FT_TRACE1( varformat )  FT_TRACE( 1, varformat )
@@ -164,13 +192,13 @@ FT_BEGIN_HEADER
 #define FT_TRACE7( varformat )  FT_TRACE( 7, varformat )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define the FT_ERROR macro.                                            */
-  /*                                                                       */
-  /* Output of this macro is sent to stderr.                               */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Define the FT_ERROR macro.
+   *
+   * Output of this macro is sent to stderr.
+   *
+   */
 
 #ifdef FT_DEBUG_LEVEL_ERROR
 
@@ -183,12 +211,12 @@ FT_BEGIN_HEADER
 #endif /* !FT_DEBUG_LEVEL_ERROR */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define the FT_ASSERT and FT_THROW macros.  The call to `FT_Throw'     */
-  /* makes it possible to easily set a breakpoint at this function.        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Define the FT_ASSERT and FT_THROW macros.  The call to `FT_Throw` makes
+   * it possible to easily set a breakpoint at this function.
+   *
+   */
 
 #ifdef FT_DEBUG_LEVEL_ERROR
 
@@ -215,11 +243,11 @@ FT_BEGIN_HEADER
 #endif /* !FT_DEBUG_LEVEL_ERROR */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define `FT_Message' and `FT_Panic' when needed.                       */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Define `FT_Message` and `FT_Panic` when needed.
+   *
+   */
 
 #ifdef FT_DEBUG_LEVEL_ERROR
 
diff --git a/thirdparty/freetype/include/freetype/internal/ftdriver.h b/thirdparty/freetype/include/freetype/internal/ftdriver.h
deleted file mode 100644
index e82fa8d41f..0000000000
--- a/thirdparty/freetype/include/freetype/internal/ftdriver.h
+++ /dev/null
@@ -1,400 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftdriver.h                                                             */
-/*                                                                         */
-/*    FreeType font driver interface (specification).                      */
-/*                                                                         */
-/*  Copyright 1996-2017 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef FTDRIVER_H_
-#define FTDRIVER_H_
-
-
-#include <ft2build.h>
-#include FT_MODULE_H
-
-
-FT_BEGIN_HEADER
-
-
-  typedef FT_Error
-  (*FT_Face_InitFunc)( FT_Stream      stream,
-                       FT_Face        face,
-                       FT_Int         typeface_index,
-                       FT_Int         num_params,
-                       FT_Parameter*  parameters );
-
-  typedef void
-  (*FT_Face_DoneFunc)( FT_Face  face );
-
-
-  typedef FT_Error
-  (*FT_Size_InitFunc)( FT_Size  size );
-
-  typedef void
-  (*FT_Size_DoneFunc)( FT_Size  size );
-
-
-  typedef FT_Error
-  (*FT_Slot_InitFunc)( FT_GlyphSlot  slot );
-
-  typedef void
-  (*FT_Slot_DoneFunc)( FT_GlyphSlot  slot );
-
-
-  typedef FT_Error
-  (*FT_Size_RequestFunc)( FT_Size          size,
-                          FT_Size_Request  req );
-
-  typedef FT_Error
-  (*FT_Size_SelectFunc)( FT_Size   size,
-                         FT_ULong  size_index );
-
-  typedef FT_Error
-  (*FT_Slot_LoadFunc)( FT_GlyphSlot  slot,
-                       FT_Size       size,
-                       FT_UInt       glyph_index,
-                       FT_Int32      load_flags );
-
-
-  typedef FT_Error
-  (*FT_Face_GetKerningFunc)( FT_Face     face,
-                             FT_UInt     left_glyph,
-                             FT_UInt     right_glyph,
-                             FT_Vector*  kerning );
-
-
-  typedef FT_Error
-  (*FT_Face_AttachFunc)( FT_Face    face,
-                         FT_Stream  stream );
-
-
-  typedef FT_Error
-  (*FT_Face_GetAdvancesFunc)( FT_Face    face,
-                              FT_UInt    first,
-                              FT_UInt    count,
-                              FT_Int32   flags,
-                              FT_Fixed*  advances );
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Driver_ClassRec                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The font driver class.  This structure mostly contains pointers to */
-  /*    driver methods.                                                    */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root             :: The parent module.                             */
-  /*                                                                       */
-  /*    face_object_size :: The size of a face object in bytes.            */
-  /*                                                                       */
-  /*    size_object_size :: The size of a size object in bytes.            */
-  /*                                                                       */
-  /*    slot_object_size :: The size of a glyph object in bytes.           */
-  /*                                                                       */
-  /*    init_face        :: The format-specific face constructor.          */
-  /*                                                                       */
-  /*    done_face        :: The format-specific face destructor.           */
-  /*                                                                       */
-  /*    init_size        :: The format-specific size constructor.          */
-  /*                                                                       */
-  /*    done_size        :: The format-specific size destructor.           */
-  /*                                                                       */
-  /*    init_slot        :: The format-specific slot constructor.          */
-  /*                                                                       */
-  /*    done_slot        :: The format-specific slot destructor.           */
-  /*                                                                       */
-  /*                                                                       */
-  /*    load_glyph       :: A function handle to load a glyph to a slot.   */
-  /*                        This field is mandatory!                       */
-  /*                                                                       */
-  /*    get_kerning      :: A function handle to return the unscaled       */
-  /*                        kerning for a given pair of glyphs.  Can be    */
-  /*                        set to 0 if the format doesn't support         */
-  /*                        kerning.                                       */
-  /*                                                                       */
-  /*    attach_file      :: This function handle is used to read           */
-  /*                        additional data for a face from another        */
-  /*                        file/stream.  For example, this can be used to */
-  /*                        add data from AFM or PFM files on a Type 1     */
-  /*                        face, or a CIDMap on a CID-keyed face.         */
-  /*                                                                       */
-  /*    get_advances     :: A function handle used to return advance       */
-  /*                        widths of `count' glyphs (in font units),      */
-  /*                        starting at `first'.  The `vertical' flag must */
-  /*                        be set to get vertical advance heights.  The   */
-  /*                        `advances' buffer is caller-allocated.         */
-  /*                        The idea of this function is to be able to     */
-  /*                        perform device-independent text layout without */
-  /*                        loading a single glyph image.                  */
-  /*                                                                       */
-  /*    request_size     :: A handle to a function used to request the new */
-  /*                        character size.  Can be set to 0 if the        */
-  /*                        scaling done in the base layer suffices.       */
-  /*                                                                       */
-  /*    select_size      :: A handle to a function used to select a new    */
-  /*                        fixed size.  It is used only if                */
-  /*                        @FT_FACE_FLAG_FIXED_SIZES is set.  Can be set  */
-  /*                        to 0 if the scaling done in the base layer     */
-  /*                        suffices.                                      */
-  /* <Note>                                                                */
-  /*    Most function pointers, with the exception of `load_glyph', can be */
-  /*    set to 0 to indicate a default behaviour.                          */
-  /*                                                                       */
-  typedef struct  FT_Driver_ClassRec_
-  {
-    FT_Module_Class          root;
-
-    FT_Long                  face_object_size;
-    FT_Long                  size_object_size;
-    FT_Long                  slot_object_size;
-
-    FT_Face_InitFunc         init_face;
-    FT_Face_DoneFunc         done_face;
-
-    FT_Size_InitFunc         init_size;
-    FT_Size_DoneFunc         done_size;
-
-    FT_Slot_InitFunc         init_slot;
-    FT_Slot_DoneFunc         done_slot;
-
-    FT_Slot_LoadFunc         load_glyph;
-
-    FT_Face_GetKerningFunc   get_kerning;
-    FT_Face_AttachFunc       attach_file;
-    FT_Face_GetAdvancesFunc  get_advances;
-
-    /* since version 2.2 */
-    FT_Size_RequestFunc      request_size;
-    FT_Size_SelectFunc       select_size;
-
-  } FT_Driver_ClassRec, *FT_Driver_Class;
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DECLARE_DRIVER                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to create a forward declaration of an FT_Driver_ClassRec      */
-  /*    struct instance.                                                   */
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_DRIVER                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of FT_Driver_ClassRec struct.       */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is defined a `create' function has to be */
-  /*    called with a pointer where the allocated structure is returned.   */
-  /*    And when it is no longer needed a `destroy' function needs to be   */
-  /*    called to release that allocation.                                 */
-  /*                                                                       */
-  /*    `ftinit.c' (ft_create_default_module_classes) already contains a   */
-  /*    mechanism to call these functions for the default modules          */
-  /*    described in `ftmodule.h'.                                         */
-  /*                                                                       */
-  /*    Notice that the created `create' and `destroy' functions call      */
-  /*    `pic_init' and `pic_free' to allow you to manually allocate and    */
-  /*    initialize any additional global data, like a module specific      */
-  /*    interface, and put them in the global pic container defined in     */
-  /*    `ftpic.h'.  If you don't need them just implement the functions as */
-  /*    empty to resolve the link error.  Also the `pic_init' and          */
-  /*    `pic_free' functions should be declared in `pic.h', to be referred */
-  /*    by driver definition calling `FT_DEFINE_DRIVER' in following.      */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro is     */
-  /*    used).                                                             */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define FT_DECLARE_DRIVER( class_ )  \
-  FT_CALLBACK_TABLE                  \
-  const FT_Driver_ClassRec  class_;
-
-#define FT_DEFINE_DRIVER(                    \
-          class_,                            \
-          flags_,                            \
-          size_,                             \
-          name_,                             \
-          version_,                          \
-          requires_,                         \
-          interface_,                        \
-          init_,                             \
-          done_,                             \
-          get_interface_,                    \
-          face_object_size_,                 \
-          size_object_size_,                 \
-          slot_object_size_,                 \
-          init_face_,                        \
-          done_face_,                        \
-          init_size_,                        \
-          done_size_,                        \
-          init_slot_,                        \
-          done_slot_,                        \
-          load_glyph_,                       \
-          get_kerning_,                      \
-          attach_file_,                      \
-          get_advances_,                     \
-          request_size_,                     \
-          select_size_ )                     \
-  FT_CALLBACK_TABLE_DEF                      \
-  const FT_Driver_ClassRec  class_ =         \
-  {                                          \
-    FT_DEFINE_ROOT_MODULE( flags_,           \
-                           size_,            \
-                           name_,            \
-                           version_,         \
-                           requires_,        \
-                           interface_,       \
-                           init_,            \
-                           done_,            \
-                           get_interface_ )  \
-                                             \
-    face_object_size_,                       \
-    size_object_size_,                       \
-    slot_object_size_,                       \
-                                             \
-    init_face_,                              \
-    done_face_,                              \
-                                             \
-    init_size_,                              \
-    done_size_,                              \
-                                             \
-    init_slot_,                              \
-    done_slot_,                              \
-                                             \
-    load_glyph_,                             \
-                                             \
-    get_kerning_,                            \
-    attach_file_,                            \
-    get_advances_,                           \
-                                             \
-    request_size_,                           \
-    select_size_                             \
-  };
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DECLARE_DRIVER( class_ )  FT_DECLARE_MODULE( class_ )
-
-#define FT_DEFINE_DRIVER(                                        \
-          class_,                                                \
-          flags_,                                                \
-          size_,                                                 \
-          name_,                                                 \
-          version_,                                              \
-          requires_,                                             \
-          interface_,                                            \
-          init_,                                                 \
-          done_,                                                 \
-          get_interface_,                                        \
-          face_object_size_,                                     \
-          size_object_size_,                                     \
-          slot_object_size_,                                     \
-          init_face_,                                            \
-          done_face_,                                            \
-          init_size_,                                            \
-          done_size_,                                            \
-          init_slot_,                                            \
-          done_slot_,                                            \
-          load_glyph_,                                           \
-          get_kerning_,                                          \
-          attach_file_,                                          \
-          get_advances_,                                         \
-          request_size_,                                         \
-          select_size_ )                                         \
-  void                                                           \
-  FT_Destroy_Class_ ## class_( FT_Library        library,        \
-                               FT_Module_Class*  clazz )         \
-  {                                                              \
-    FT_Memory        memory = library->memory;                   \
-    FT_Driver_Class  dclazz = (FT_Driver_Class)clazz;            \
-                                                                 \
-                                                                 \
-    class_ ## _pic_free( library );                              \
-    if ( dclazz )                                                \
-      FT_FREE( dclazz );                                         \
-  }                                                              \
-                                                                 \
-                                                                 \
-  FT_Error                                                       \
-  FT_Create_Class_ ## class_( FT_Library         library,        \
-                              FT_Module_Class**  output_class )  \
-  {                                                              \
-    FT_Driver_Class  clazz  = NULL;                              \
-    FT_Error         error;                                      \
-    FT_Memory        memory = library->memory;                   \
-                                                                 \
-                                                                 \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) ) )                  \
-      return error;                                              \
-                                                                 \
-    error = class_ ## _pic_init( library );                      \
-    if ( error )                                                 \
-    {                                                            \
-      FT_FREE( clazz );                                          \
-      return error;                                              \
-    }                                                            \
-                                                                 \
-    FT_DEFINE_ROOT_MODULE( flags_,                               \
-                           size_,                                \
-                           name_,                                \
-                           version_,                             \
-                           requires_,                            \
-                           interface_,                           \
-                           init_,                                \
-                           done_,                                \
-                           get_interface_ )                      \
-                                                                 \
-    clazz->face_object_size = face_object_size_;                 \
-    clazz->size_object_size = size_object_size_;                 \
-    clazz->slot_object_size = slot_object_size_;                 \
-                                                                 \
-    clazz->init_face        = init_face_;                        \
-    clazz->done_face        = done_face_;                        \
-                                                                 \
-    clazz->init_size        = init_size_;                        \
-    clazz->done_size        = done_size_;                        \
-                                                                 \
-    clazz->init_slot        = init_slot_;                        \
-    clazz->done_slot        = done_slot_;                        \
-                                                                 \
-    clazz->load_glyph       = load_glyph_;                       \
-                                                                 \
-    clazz->get_kerning      = get_kerning_;                      \
-    clazz->attach_file      = attach_file_;                      \
-    clazz->get_advances     = get_advances_;                     \
-                                                                 \
-    clazz->request_size     = request_size_;                     \
-    clazz->select_size      = select_size_;                      \
-                                                                 \
-    *output_class = (FT_Module_Class*)clazz;                     \
-                                                                 \
-    return FT_Err_Ok;                                            \
-  }
-
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-FT_END_HEADER
-
-#endif /* FTDRIVER_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/internal/ftdrv.h b/thirdparty/freetype/include/freetype/internal/ftdrv.h
index 58dd35a933..09e846e1c7 100644
--- a/thirdparty/freetype/include/freetype/internal/ftdrv.h
+++ b/thirdparty/freetype/include/freetype/internal/ftdrv.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftdrv.h                                                                */
-/*                                                                         */
-/*    FreeType internal font driver interface (specification).             */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftdrv.h
+ *
+ *   FreeType internal font driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTDRV_H_
@@ -87,73 +87,80 @@ FT_BEGIN_HEADER
                               FT_Fixed*  advances );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Driver_ClassRec                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The font driver class.  This structure mostly contains pointers to */
-  /*    driver methods.                                                    */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root             :: The parent module.                             */
-  /*                                                                       */
-  /*    face_object_size :: The size of a face object in bytes.            */
-  /*                                                                       */
-  /*    size_object_size :: The size of a size object in bytes.            */
-  /*                                                                       */
-  /*    slot_object_size :: The size of a glyph object in bytes.           */
-  /*                                                                       */
-  /*    init_face        :: The format-specific face constructor.          */
-  /*                                                                       */
-  /*    done_face        :: The format-specific face destructor.           */
-  /*                                                                       */
-  /*    init_size        :: The format-specific size constructor.          */
-  /*                                                                       */
-  /*    done_size        :: The format-specific size destructor.           */
-  /*                                                                       */
-  /*    init_slot        :: The format-specific slot constructor.          */
-  /*                                                                       */
-  /*    done_slot        :: The format-specific slot destructor.           */
-  /*                                                                       */
-  /*                                                                       */
-  /*    load_glyph       :: A function handle to load a glyph to a slot.   */
-  /*                        This field is mandatory!                       */
-  /*                                                                       */
-  /*    get_kerning      :: A function handle to return the unscaled       */
-  /*                        kerning for a given pair of glyphs.  Can be    */
-  /*                        set to 0 if the format doesn't support         */
-  /*                        kerning.                                       */
-  /*                                                                       */
-  /*    attach_file      :: This function handle is used to read           */
-  /*                        additional data for a face from another        */
-  /*                        file/stream.  For example, this can be used to */
-  /*                        add data from AFM or PFM files on a Type 1     */
-  /*                        face, or a CIDMap on a CID-keyed face.         */
-  /*                                                                       */
-  /*    get_advances     :: A function handle used to return advance       */
-  /*                        widths of `count' glyphs (in font units),      */
-  /*                        starting at `first'.  The `vertical' flag must */
-  /*                        be set to get vertical advance heights.  The   */
-  /*                        `advances' buffer is caller-allocated.         */
-  /*                        The idea of this function is to be able to     */
-  /*                        perform device-independent text layout without */
-  /*                        loading a single glyph image.                  */
-  /*                                                                       */
-  /*    request_size     :: A handle to a function used to request the new */
-  /*                        character size.  Can be set to 0 if the        */
-  /*                        scaling done in the base layer suffices.       */
-  /*                                                                       */
-  /*    select_size      :: A handle to a function used to select a new    */
-  /*                        fixed size.  It is used only if                */
-  /*                        @FT_FACE_FLAG_FIXED_SIZES is set.  Can be set  */
-  /*                        to 0 if the scaling done in the base layer     */
-  /*                        suffices.                                      */
-  /* <Note>                                                                */
-  /*    Most function pointers, with the exception of `load_glyph', can be */
-  /*    set to 0 to indicate a default behaviour.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Driver_ClassRec
+   *
+   * @description:
+   *   The font driver class.  This structure mostly contains pointers to
+   *   driver methods.
+   *
+   * @fields:
+   *   root ::
+   *     The parent module.
+   *
+   *   face_object_size ::
+   *     The size of a face object in bytes.
+   *
+   *   size_object_size ::
+   *     The size of a size object in bytes.
+   *
+   *   slot_object_size ::
+   *     The size of a glyph object in bytes.
+   *
+   *   init_face ::
+   *     The format-specific face constructor.
+   *
+   *   done_face ::
+   *     The format-specific face destructor.
+   *
+   *   init_size ::
+   *     The format-specific size constructor.
+   *
+   *   done_size ::
+   *     The format-specific size destructor.
+   *
+   *   init_slot ::
+   *     The format-specific slot constructor.
+   *
+   *   done_slot ::
+   *     The format-specific slot destructor.
+   *
+   *
+   *   load_glyph ::
+   *     A function handle to load a glyph to a slot.  This field is
+   *     mandatory!
+   *
+   *   get_kerning ::
+   *     A function handle to return the unscaled kerning for a given pair of
+   *     glyphs.  Can be set to 0 if the format doesn't support kerning.
+   *
+   *   attach_file ::
+   *     This function handle is used to read additional data for a face from
+   *     another file/stream.  For example, this can be used to add data from
+   *     AFM or PFM files on a Type 1 face, or a CIDMap on a CID-keyed face.
+   *
+   *   get_advances ::
+   *     A function handle used to return advance widths of 'count' glyphs
+   *     (in font units), starting at 'first'.  The 'vertical' flag must be
+   *     set to get vertical advance heights.  The 'advances' buffer is
+   *     caller-allocated.  The idea of this function is to be able to
+   *     perform device-independent text layout without loading a single
+   *     glyph image.
+   *
+   *   request_size ::
+   *     A handle to a function used to request the new character size.  Can
+   *     be set to 0 if the scaling done in the base layer suffices.
+   *
+   *   select_size ::
+   *     A handle to a function used to select a new fixed size.  It is used
+   *     only if @FT_FACE_FLAG_FIXED_SIZES is set.  Can be set to 0 if the
+   *     scaling done in the base layer suffices.
+   * @note:
+   *   Most function pointers, with the exception of `load_glyph`, can be set
+   *   to 0 to indicate a default behaviour.
+   */
   typedef struct  FT_Driver_ClassRec_
   {
     FT_Module_Class          root;
@@ -184,45 +191,28 @@ FT_BEGIN_HEADER
   } FT_Driver_ClassRec, *FT_Driver_Class;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DECLARE_DRIVER                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to create a forward declaration of an FT_Driver_ClassRec      */
-  /*    struct instance.                                                   */
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_DRIVER                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of FT_Driver_ClassRec struct.       */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is defined a `create' function has to be */
-  /*    called with a pointer where the allocated structure is returned.   */
-  /*    And when it is no longer needed a `destroy' function needs to be   */
-  /*    called to release that allocation.                                 */
-  /*                                                                       */
-  /*    `ftinit.c' (ft_create_default_module_classes) already contains a   */
-  /*    mechanism to call these functions for the default modules          */
-  /*    described in `ftmodule.h'.                                         */
-  /*                                                                       */
-  /*    Notice that the created `create' and `destroy' functions call      */
-  /*    `pic_init' and `pic_free' to allow you to manually allocate and    */
-  /*    initialize any additional global data, like a module specific      */
-  /*    interface, and put them in the global pic container defined in     */
-  /*    `ftpic.h'.  If you don't need them just implement the functions as */
-  /*    empty to resolve the link error.  Also the `pic_init' and          */
-  /*    `pic_free' functions should be declared in `pic.h', to be referred */
-  /*    by driver definition calling `FT_DEFINE_DRIVER' in following.      */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro is     */
-  /*    used).                                                             */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
-
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DECLARE_DRIVER
+   *
+   * @description:
+   *   Used to create a forward declaration of an FT_Driver_ClassRec struct
+   *   instance.
+   *
+   * @macro:
+   *   FT_DEFINE_DRIVER
+   *
+   * @description:
+   *   Used to initialize an instance of FT_Driver_ClassRec struct.
+   *
+   *   `ftinit.c` (ft_create_default_module_classes) already contains a
+   *   mechanism to call these functions for the default modules described in
+   *   `ftmodule.h`.
+   *
+   *   The struct will be allocated in the global scope (or the scope where
+   *   the macro is used).
+   */
 #define FT_DECLARE_DRIVER( class_ )  \
   FT_CALLBACK_TABLE                  \
   const FT_Driver_ClassRec  class_;
@@ -289,108 +279,6 @@ FT_BEGIN_HEADER
     select_size_                             \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DECLARE_DRIVER( class_ )  FT_DECLARE_MODULE( class_ )
-
-#define FT_DEFINE_DRIVER(                                        \
-          class_,                                                \
-          flags_,                                                \
-          size_,                                                 \
-          name_,                                                 \
-          version_,                                              \
-          requires_,                                             \
-          interface_,                                            \
-          init_,                                                 \
-          done_,                                                 \
-          get_interface_,                                        \
-          face_object_size_,                                     \
-          size_object_size_,                                     \
-          slot_object_size_,                                     \
-          init_face_,                                            \
-          done_face_,                                            \
-          init_size_,                                            \
-          done_size_,                                            \
-          init_slot_,                                            \
-          done_slot_,                                            \
-          load_glyph_,                                           \
-          get_kerning_,                                          \
-          attach_file_,                                          \
-          get_advances_,                                         \
-          request_size_,                                         \
-          select_size_ )                                         \
-  void                                                           \
-  FT_Destroy_Class_ ## class_( FT_Library        library,        \
-                               FT_Module_Class*  clazz )         \
-  {                                                              \
-    FT_Memory        memory = library->memory;                   \
-    FT_Driver_Class  dclazz = (FT_Driver_Class)clazz;            \
-                                                                 \
-                                                                 \
-    class_ ## _pic_free( library );                              \
-    if ( dclazz )                                                \
-      FT_FREE( dclazz );                                         \
-  }                                                              \
-                                                                 \
-                                                                 \
-  FT_Error                                                       \
-  FT_Create_Class_ ## class_( FT_Library         library,        \
-                              FT_Module_Class**  output_class )  \
-  {                                                              \
-    FT_Driver_Class  clazz  = NULL;                              \
-    FT_Error         error;                                      \
-    FT_Memory        memory = library->memory;                   \
-                                                                 \
-                                                                 \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) ) )                  \
-      return error;                                              \
-                                                                 \
-    error = class_ ## _pic_init( library );                      \
-    if ( error )                                                 \
-    {                                                            \
-      FT_FREE( clazz );                                          \
-      return error;                                              \
-    }                                                            \
-                                                                 \
-    FT_DEFINE_ROOT_MODULE( flags_,                               \
-                           size_,                                \
-                           name_,                                \
-                           version_,                             \
-                           requires_,                            \
-                           interface_,                           \
-                           init_,                                \
-                           done_,                                \
-                           get_interface_ )                      \
-                                                                 \
-    clazz->face_object_size = face_object_size_;                 \
-    clazz->size_object_size = size_object_size_;                 \
-    clazz->slot_object_size = slot_object_size_;                 \
-                                                                 \
-    clazz->init_face        = init_face_;                        \
-    clazz->done_face        = done_face_;                        \
-                                                                 \
-    clazz->init_size        = init_size_;                        \
-    clazz->done_size        = done_size_;                        \
-                                                                 \
-    clazz->init_slot        = init_slot_;                        \
-    clazz->done_slot        = done_slot_;                        \
-                                                                 \
-    clazz->load_glyph       = load_glyph_;                       \
-                                                                 \
-    clazz->get_kerning      = get_kerning_;                      \
-    clazz->attach_file      = attach_file_;                      \
-    clazz->get_advances     = get_advances_;                     \
-                                                                 \
-    clazz->request_size     = request_size_;                     \
-    clazz->select_size      = select_size_;                      \
-                                                                 \
-    *output_class = (FT_Module_Class*)clazz;                     \
-                                                                 \
-    return FT_Err_Ok;                                            \
-  }
-
-
-#endif /* FT_CONFIG_OPTION_PIC */
 
 FT_END_HEADER
 
diff --git a/thirdparty/freetype/include/freetype/internal/ftgloadr.h b/thirdparty/freetype/include/freetype/internal/ftgloadr.h
index a002fdbfca..770871d81b 100644
--- a/thirdparty/freetype/include/freetype/internal/ftgloadr.h
+++ b/thirdparty/freetype/include/freetype/internal/ftgloadr.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgloadr.h                                                             */
-/*                                                                         */
-/*    The FreeType glyph loader (specification).                           */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgloadr.h
+ *
+ *   The FreeType glyph loader (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTGLOADR_H_
@@ -27,15 +27,15 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_GlyphLoader                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The glyph loader is an internal object used to load several glyphs */
-  /*    together (for example, in the case of composites).                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_GlyphLoader
+   *
+   * @description:
+   *   The glyph loader is an internal object used to load several glyphs
+   *   together (for example, in the case of composites).
+   */
   typedef struct  FT_SubGlyphRec_
   {
     FT_Int     index;
@@ -138,11 +138,6 @@ FT_BEGIN_HEADER
   FT_BASE( void )
   FT_GlyphLoader_Add( FT_GlyphLoader  loader );
 
-  /* copy points from one glyph loader to another */
-  FT_BASE( FT_Error )
-  FT_GlyphLoader_CopyPoints( FT_GlyphLoader  target,
-                             FT_GlyphLoader  source );
-
  /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/fthash.h b/thirdparty/freetype/include/freetype/internal/fthash.h
index f22f9d5d39..249188040b 100644
--- a/thirdparty/freetype/include/freetype/internal/fthash.h
+++ b/thirdparty/freetype/include/freetype/internal/fthash.h
@@ -1,10 +1,10 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fthash.h                                                               */
-/*                                                                         */
-/*    Hashing functions (specification).                                   */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fthash.h
+ *
+ *   Hashing functions (specification).
+ *
+ */
 
 /*
  * Copyright 2000 Computing Research Labs, New Mexico State University
@@ -30,13 +30,13 @@
  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50     */
-  /*                                                                       */
-  /*  taken from Mark Leisher's xmbdfed package                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50
+   *
+   * taken from Mark Leisher's xmbdfed package
+   *
+   */
 
 
 #ifndef FTHASH_H_
diff --git a/thirdparty/freetype/include/freetype/internal/ftmemory.h b/thirdparty/freetype/include/freetype/internal/ftmemory.h
index 054eaec31f..78bd3bc229 100644
--- a/thirdparty/freetype/include/freetype/internal/ftmemory.h
+++ b/thirdparty/freetype/include/freetype/internal/ftmemory.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmemory.h                                                             */
-/*                                                                         */
-/*    The FreeType memory management macros (specification).               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftmemory.h
+ *
+ *   The FreeType memory management macros (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTMEMORY_H_
@@ -28,16 +28,16 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_SET_ERROR                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This macro is used to set an implicit `error' variable to a given  */
-  /*    expression's value (usually a function call), and convert it to a  */
-  /*    boolean which is set whenever the value is != 0.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_SET_ERROR
+   *
+   * @description:
+   *   This macro is used to set an implicit 'error' variable to a given
+   *   expression's value (usually a function call), and convert it to a
+   *   boolean which is set whenever the value is != 0.
+   */
 #undef  FT_SET_ERROR
 #define FT_SET_ERROR( expression ) \
           ( ( error = (expression) ) != 0 )
@@ -58,9 +58,9 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  C++ refuses to handle statements like p = (void*)anything, with `p' a
-   *  typed pointer.  Since we don't have a `typeof' operator in standard
-   *  C++, we have to use a template to emulate it.
+   * C++ refuses to handle statements like p = (void*)anything, with `p' a
+   * typed pointer.  Since we don't have a `typeof' operator in standard C++,
+   * we have to use a template to emulate it.
    */
 
 #ifdef __cplusplus
@@ -107,8 +107,8 @@ extern "C++"
 
 
   /*
-   *  The allocation functions return a pointer, and the error code
-   *  is written to through the `p_error' parameter.
+   * The allocation functions return a pointer, and the error code is written
+   * to through the `p_error' parameter.
    */
 
   /* The `q' variants of the functions below (`q' for `quick') don't fill */
@@ -253,20 +253,19 @@ extern "C++"
 
 
   /*
-   *  Return the maximum number of addressable elements in an array.
-   *  We limit ourselves to INT_MAX, rather than UINT_MAX, to avoid
-   *  any problems.
+   * Return the maximum number of addressable elements in an array.  We limit
+   * ourselves to INT_MAX, rather than UINT_MAX, to avoid any problems.
    */
 #define FT_ARRAY_MAX( ptr )           ( FT_INT_MAX / sizeof ( *(ptr) ) )
 
 #define FT_ARRAY_CHECK( ptr, count )  ( (count) <= FT_ARRAY_MAX( ptr ) )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The following functions macros expect that their pointer argument is  */
-  /* _typed_ in order to automatically compute array element sizes.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The following functions macros expect that their pointer argument is
+   * _typed_ in order to automatically compute array element sizes.
+   */
 
 #define FT_MEM_NEW_ARRAY( ptr, count )                              \
           FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory,            \
diff --git a/thirdparty/freetype/include/freetype/internal/ftobjs.h b/thirdparty/freetype/include/freetype/internal/ftobjs.h
index 1c3c6ad456..f3a41b35ab 100644
--- a/thirdparty/freetype/include/freetype/internal/ftobjs.h
+++ b/thirdparty/freetype/include/freetype/internal/ftobjs.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftobjs.h                                                               */
-/*                                                                         */
-/*    The FreeType private base classes (specification).                   */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*  This file contains the definition of all internal FreeType classes.  */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftobjs.h
+ *
+ *   The FreeType private base classes (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file contains the definition of all internal FreeType classes.
+   *
+   */
 
 
 #ifndef FTOBJS_H_
@@ -35,7 +35,6 @@
 #include FT_INTERNAL_DRIVER_H
 #include FT_INTERNAL_AUTOHINT_H
 #include FT_INTERNAL_SERVICE_H
-#include FT_INTERNAL_PIC_H
 #include FT_INTERNAL_CALC_H
 
 #ifdef FT_CONFIG_OPTION_INCREMENTAL
@@ -46,10 +45,10 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Some generic definitions.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Some generic definitions.
+   */
 #ifndef TRUE
 #define TRUE  1
 #endif
@@ -63,20 +62,20 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The min and max functions missing in C.  As usual, be careful not to  */
-  /* write things like FT_MIN( a++, b++ ) to avoid side effects.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The min and max functions missing in C.  As usual, be careful not to
+   * write things like FT_MIN( a++, b++ ) to avoid side effects.
+   */
 #define FT_MIN( a, b )  ( (a) < (b) ? (a) : (b) )
 #define FT_MAX( a, b )  ( (a) > (b) ? (a) : (b) )
 
 #define FT_ABS( a )     ( (a) < 0 ? -(a) : (a) )
 
   /*
-   *  Approximate sqrt(x*x+y*y) using the `alpha max plus beta min'
-   *  algorithm.  We use alpha = 1, beta = 3/8, giving us results with a
-   *  largest error less than 7% compared to the exact value.
+   * Approximate sqrt(x*x+y*y) using the `alpha max plus beta min' algorithm.
+   * We use alpha = 1, beta = 3/8, giving us results with a largest error
+   * less than 7% compared to the exact value.
    */
 #define FT_HYPOT( x, y )                 \
           ( x = FT_ABS( x ),             \
@@ -111,9 +110,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  character classification functions -- since these are used to parse
-   *  font files, we must not use those in <ctypes.h> which are
-   *  locale-dependent
+   * character classification functions -- since these are used to parse font
+   * files, we must not use those in <ctypes.h> which are locale-dependent
    */
 #define  ft_isdigit( x )   ( ( (unsigned)(x) - '0' ) < 10U )
 
@@ -187,7 +185,7 @@ FT_BEGIN_HEADER
                                FT_UInt32  char_code,
                                FT_UInt32  variant_selector );
 
-  typedef FT_Bool
+  typedef FT_Int
   (*FT_CMap_CharVarIsDefaultFunc)( FT_CMap    cmap,
                                    FT_UInt32  char_code,
                                    FT_UInt32  variant_selector );
@@ -228,8 +226,6 @@ FT_BEGIN_HEADER
   } FT_CMap_ClassRec;
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DECLARE_CMAP_CLASS( class_ )              \
   FT_CALLBACK_TABLE const  FT_CMap_ClassRec class_;
 
@@ -260,45 +256,6 @@ FT_BEGIN_HEADER
     variantchar_list_               \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DECLARE_CMAP_CLASS( class_ )                  \
-  void                                                   \
-  FT_Init_Class_ ## class_( FT_Library         library,  \
-                            FT_CMap_ClassRec*  clazz );
-
-#define FT_DEFINE_CMAP_CLASS(                            \
-          class_,                                        \
-          size_,                                         \
-          init_,                                         \
-          done_,                                         \
-          char_index_,                                   \
-          char_next_,                                    \
-          char_var_index_,                               \
-          char_var_default_,                             \
-          variant_list_,                                 \
-          charvariant_list_,                             \
-          variantchar_list_ )                            \
-  void                                                   \
-  FT_Init_Class_ ## class_( FT_Library         library,  \
-                            FT_CMap_ClassRec*  clazz )   \
-  {                                                      \
-    FT_UNUSED( library );                                \
-                                                         \
-    clazz->size             = size_;                     \
-    clazz->init             = init_;                     \
-    clazz->done             = done_;                     \
-    clazz->char_index       = char_index_;               \
-    clazz->char_next        = char_next_;                \
-    clazz->char_var_index   = char_var_index_;           \
-    clazz->char_var_default = char_var_default_;         \
-    clazz->variant_list     = variant_list_;             \
-    clazz->charvariant_list = charvariant_list_;         \
-    clazz->variantchar_list = variantchar_list_;         \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
 
   /* create a new charmap and add it to charmap->face */
   FT_BASE( FT_Error )
@@ -312,11 +269,11 @@ FT_BEGIN_HEADER
   FT_CMap_Done( FT_CMap  cmap );
 
 
-  /* adds LCD padding to Min and Max boundaries */
+  /* add LCD padding to CBox */
   FT_BASE( void )
-  ft_lcd_padding( FT_Pos*       Min,
-                  FT_Pos*       Max,
-                  FT_GlyphSlot  slot );
+  ft_lcd_padding( FT_BBox*        cbox,
+                  FT_GlyphSlot    slot,
+                  FT_Render_Mode  mode );
 
 #ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
 
@@ -333,74 +290,72 @@ FT_BEGIN_HEADER
 
 #endif /* FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Face_InternalRec                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure contains the internal fields of each FT_Face        */
-  /*    object.  These fields may change between different releases of     */
-  /*    FreeType.                                                          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    max_points ::                                                      */
-  /*      The maximum number of points used to store the vectorial outline */
-  /*      of any glyph in this face.  If this value cannot be known in     */
-  /*      advance, or if the face isn't scalable, this should be set to 0. */
-  /*      Only relevant for scalable formats.                              */
-  /*                                                                       */
-  /*    max_contours ::                                                    */
-  /*      The maximum number of contours used to store the vectorial       */
-  /*      outline of any glyph in this face.  If this value cannot be      */
-  /*      known in advance, or if the face isn't scalable, this should be  */
-  /*      set to 0.  Only relevant for scalable formats.                   */
-  /*                                                                       */
-  /*    transform_matrix ::                                                */
-  /*      A 2x2 matrix of 16.16 coefficients used to transform glyph       */
-  /*      outlines after they are loaded from the font.  Only used by the  */
-  /*      convenience functions.                                           */
-  /*                                                                       */
-  /*    transform_delta ::                                                 */
-  /*      A translation vector used to transform glyph outlines after they */
-  /*      are loaded from the font.  Only used by the convenience          */
-  /*      functions.                                                       */
-  /*                                                                       */
-  /*    transform_flags ::                                                 */
-  /*      Some flags used to classify the transform.  Only used by the     */
-  /*      convenience functions.                                           */
-  /*                                                                       */
-  /*    services ::                                                        */
-  /*      A cache for frequently used services.  It should be only         */
-  /*      accessed with the macro `FT_FACE_LOOKUP_SERVICE'.                */
-  /*                                                                       */
-  /*    incremental_interface ::                                           */
-  /*      If non-null, the interface through which glyph data and metrics  */
-  /*      are loaded incrementally for faces that do not provide all of    */
-  /*      this data when first opened.  This field exists only if          */
-  /*      @FT_CONFIG_OPTION_INCREMENTAL is defined.                        */
-  /*                                                                       */
-  /*    no_stem_darkening ::                                               */
-  /*      Overrides the module-level default, see @stem-darkening[cff],    */
-  /*      for example.  FALSE and TRUE toggle stem darkening on and off,   */
-  /*      respectively, value~-1 means to use the module/driver default.   */
-  /*                                                                       */
-  /*    random_seed ::                                                     */
-  /*      If positive, override the seed value for the CFF `random'        */
-  /*      operator.  Value~0 means to use the font's value.  Value~-1      */
-  /*      means to use the CFF driver's default.                           */
-  /*                                                                       */
-  /*    lcd_weights      ::                                                */
-  /*    lcd_filter_func  ::                                                */
-  /*      If subpixel rendering is activated, the LCD filtering weights    */
-  /*      and callback function.                                           */
-  /*                                                                       */
-  /*    refcount ::                                                        */
-  /*      A counter initialized to~1 at the time an @FT_Face structure is  */
-  /*      created.  @FT_Reference_Face increments this counter, and        */
-  /*      @FT_Done_Face only destroys a face if the counter is~1,          */
-  /*      otherwise it simply decrements it.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Face_InternalRec
+   *
+   * @description:
+   *   This structure contains the internal fields of each FT_Face object.
+   *   These fields may change between different releases of FreeType.
+   *
+   * @fields:
+   *   max_points ::
+   *     The maximum number of points used to store the vectorial outline of
+   *     any glyph in this face.  If this value cannot be known in advance,
+   *     or if the face isn't scalable, this should be set to 0.  Only
+   *     relevant for scalable formats.
+   *
+   *   max_contours ::
+   *     The maximum number of contours used to store the vectorial outline
+   *     of any glyph in this face.  If this value cannot be known in
+   *     advance, or if the face isn't scalable, this should be set to 0.
+   *     Only relevant for scalable formats.
+   *
+   *   transform_matrix ::
+   *     A 2x2 matrix of 16.16 coefficients used to transform glyph outlines
+   *     after they are loaded from the font.  Only used by the convenience
+   *     functions.
+   *
+   *   transform_delta ::
+   *     A translation vector used to transform glyph outlines after they are
+   *     loaded from the font.  Only used by the convenience functions.
+   *
+   *   transform_flags ::
+   *     Some flags used to classify the transform.  Only used by the
+   *     convenience functions.
+   *
+   *   services ::
+   *     A cache for frequently used services.  It should be only accessed
+   *     with the macro `FT_FACE_LOOKUP_SERVICE`.
+   *
+   *   incremental_interface ::
+   *     If non-null, the interface through which glyph data and metrics are
+   *     loaded incrementally for faces that do not provide all of this data
+   *     when first opened.  This field exists only if
+   *     @FT_CONFIG_OPTION_INCREMENTAL is defined.
+   *
+   *   no_stem_darkening ::
+   *     Overrides the module-level default, see @stem-darkening[cff], for
+   *     example.  FALSE and TRUE toggle stem darkening on and off,
+   *     respectively, value~-1 means to use the module/driver default.
+   *
+   *   random_seed ::
+   *     If positive, override the seed value for the CFF 'random' operator.
+   *     Value~0 means to use the font's value.  Value~-1 means to use the
+   *     CFF driver's default.
+   *
+   *   lcd_weights ::
+   *   lcd_filter_func ::
+   *     These fields specify the LCD filtering weights and callback function
+   *     for ClearType-style subpixel rendering.
+   *
+   *   refcount ::
+   *     A counter initialized to~1 at the time an @FT_Face structure is
+   *     created.  @FT_Reference_Face increments this counter, and
+   *     @FT_Done_Face only destroys a face if the counter is~1, otherwise it
+   *     simply decrements it.
+   */
   typedef struct  FT_Face_InternalRec_
   {
     FT_Matrix  transform_matrix;
@@ -426,39 +381,44 @@ FT_BEGIN_HEADER
   } FT_Face_InternalRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Slot_InternalRec                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure contains the internal fields of each FT_GlyphSlot   */
-  /*    object.  These fields may change between different releases of     */
-  /*    FreeType.                                                          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    loader            :: The glyph loader object used to load outlines */
-  /*                         into the glyph slot.                          */
-  /*                                                                       */
-  /*    flags             :: Possible values are zero or                   */
-  /*                         FT_GLYPH_OWN_BITMAP.  The latter indicates    */
-  /*                         that the FT_GlyphSlot structure owns the      */
-  /*                         bitmap buffer.                                */
-  /*                                                                       */
-  /*    glyph_transformed :: Boolean.  Set to TRUE when the loaded glyph   */
-  /*                         must be transformed through a specific        */
-  /*                         font transformation.  This is _not_ the same  */
-  /*                         as the face transform set through             */
-  /*                         FT_Set_Transform().                           */
-  /*                                                                       */
-  /*    glyph_matrix      :: The 2x2 matrix corresponding to the glyph     */
-  /*                         transformation, if necessary.                 */
-  /*                                                                       */
-  /*    glyph_delta       :: The 2d translation vector corresponding to    */
-  /*                         the glyph transformation, if necessary.       */
-  /*                                                                       */
-  /*    glyph_hints       :: Format-specific glyph hints management.       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Slot_InternalRec
+   *
+   * @description:
+   *   This structure contains the internal fields of each FT_GlyphSlot
+   *   object.  These fields may change between different releases of
+   *   FreeType.
+   *
+   * @fields:
+   *   loader ::
+   *     The glyph loader object used to load outlines into the glyph slot.
+   *
+   *   flags ::
+   *     Possible values are zero or FT_GLYPH_OWN_BITMAP.  The latter
+   *     indicates that the FT_GlyphSlot structure owns the bitmap buffer.
+   *
+   *   glyph_transformed ::
+   *     Boolean.  Set to TRUE when the loaded glyph must be transformed
+   *     through a specific font transformation.  This is _not_ the same as
+   *     the face transform set through FT_Set_Transform().
+   *
+   *   glyph_matrix ::
+   *     The 2x2 matrix corresponding to the glyph transformation, if
+   *     necessary.
+   *
+   *   glyph_delta ::
+   *     The 2d translation vector corresponding to the glyph transformation,
+   *     if necessary.
+   *
+   *   glyph_hints ::
+   *     Format-specific glyph hints management.
+   *
+   *   load_flags ::
+   *     The load flags passed as an argument to @FT_Load_Glyph while
+   *     initializing the glyph slot.
+   */
 
 #define FT_GLYPH_OWN_BITMAP  0x1U
 
@@ -471,26 +431,30 @@ FT_BEGIN_HEADER
     FT_Vector       glyph_delta;
     void*           glyph_hints;
 
+    FT_Int32        load_flags;
+
   } FT_GlyphSlot_InternalRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_Size_InternalRec                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure contains the internal fields of each FT_Size        */
-  /*    object.                                                            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    module_data      :: Data specific to a driver module.              */
-  /*                                                                       */
-  /*    autohint_mode    :: The used auto-hinting mode.                    */
-  /*                                                                       */
-  /*    autohint_metrics :: Metrics used by the auto-hinter.               */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_Size_InternalRec
+   *
+   * @description:
+   *   This structure contains the internal fields of each FT_Size object.
+   *
+   * @fields:
+   *   module_data ::
+   *     Data specific to a driver module.
+   *
+   *   autohint_mode ::
+   *     The used auto-hinting mode.
+   *
+   *   autohint_metrics ::
+   *     Metrics used by the auto-hinter.
+   *
+   */
 
   typedef struct  FT_Size_InternalRec_
   {
@@ -515,21 +479,24 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_ModuleRec                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A module object instance.                                          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    clazz   :: A pointer to the module's class.                        */
-  /*                                                                       */
-  /*    library :: A handle to the parent library object.                  */
-  /*                                                                       */
-  /*    memory  :: A handle to the memory manager.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_ModuleRec
+   *
+   * @description:
+   *   A module object instance.
+   *
+   * @fields:
+   *   clazz ::
+   *     A pointer to the module's class.
+   *
+   *   library ::
+   *     A handle to the parent library object.
+   *
+   *   memory ::
+   *     A handle to the memory manager.
+   */
   typedef struct  FT_ModuleRec_
   {
     FT_Module_Class*  clazz;
@@ -572,27 +539,29 @@ FT_BEGIN_HEADER
                                         FT_MODULE_DRIVER_HINTS_LIGHTLY )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Module_Interface                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finds a module and returns its specific interface as a typeless    */
-  /*    pointer.                                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library     :: A handle to the library object.                     */
-  /*                                                                       */
-  /*    module_name :: The module's name (as an ASCII string).             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A module-specific interface if available, 0 otherwise.             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    You should better be familiar with FreeType internals to know      */
-  /*    which module to look for, and what its interface is :-)            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Module_Interface
+   *
+   * @description:
+   *   Finds a module and returns its specific interface as a typeless
+   *   pointer.
+   *
+   * @input:
+   *   library ::
+   *     A handle to the library object.
+   *
+   *   module_name ::
+   *     The module's name (as an ASCII string).
+   *
+   * @return:
+   *   A module-specific interface if available, 0 otherwise.
+   *
+   * @note:
+   *   You should better be familiar with FreeType internals to know which
+   *   module to look for, and what its interface is :-)
+   */
   FT_BASE( const void* )
   FT_Get_Module_Interface( FT_Library   library,
                            const char*  mod_name );
@@ -643,44 +612,46 @@ FT_BEGIN_HEADER
 #define FT_FACE_SIZE( x )     FT_FACE( x )->size
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_GlyphSlot                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    It is sometimes useful to have more than one glyph slot for a      */
-  /*    given face object.  This function is used to create additional     */
-  /*    slots.  All of them are automatically discarded when the face is   */
-  /*    destroyed.                                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face  :: A handle to a parent face object.                         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    aslot :: A handle to a new glyph slot object.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_GlyphSlot
+   *
+   * @description:
+   *   It is sometimes useful to have more than one glyph slot for a given
+   *   face object.  This function is used to create additional slots.  All
+   *   of them are automatically discarded when the face is destroyed.
+   *
+   * @input:
+   *   face ::
+   *     A handle to a parent face object.
+   *
+   * @output:
+   *   aslot ::
+   *     A handle to a new glyph slot object.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   */
   FT_BASE( FT_Error )
   FT_New_GlyphSlot( FT_Face        face,
                     FT_GlyphSlot  *aslot );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_GlyphSlot                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroys a given glyph slot.  Remember however that all slots are  */
-  /*    automatically destroyed with its parent.  Using this function is   */
-  /*    not always mandatory.                                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    slot :: A handle to a target glyph slot.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_GlyphSlot
+   *
+   * @description:
+   *   Destroys a given glyph slot.  Remember however that all slots are
+   *   automatically destroyed with its parent.  Using this function is not
+   *   always mandatory.
+   *
+   * @input:
+   *   slot ::
+   *     A handle to a target glyph slot.
+   */
   FT_BASE( void )
   FT_Done_GlyphSlot( FT_GlyphSlot  slot );
 
@@ -730,8 +701,9 @@ FT_BEGIN_HEADER
   ft_glyphslot_free_bitmap( FT_GlyphSlot  slot );
 
 
-  /* Preset bitmap metrics of an outline glyphslot prior to rendering. */
-  FT_BASE( void )
+  /* Preset bitmap metrics of an outline glyphslot prior to rendering */
+  /* and check whether the truncated bbox is too large for rendering. */
+  FT_BASE( FT_Bool )
   ft_glyphslot_preset_bitmap( FT_GlyphSlot      slot,
                               FT_Render_Mode    mode,
                               const FT_Vector*  origin );
@@ -802,28 +774,30 @@ FT_BEGIN_HEADER
 #define FT_DRIVER_CLASS( x )  FT_DRIVER( x )->clazz
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_DriverRec                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The root font driver class.  A font driver is responsible for      */
-  /*    managing and loading font files of a given format.                 */
-  /*                                                                       */
-  /*  <Fields>                                                             */
-  /*     root         :: Contains the fields of the root module class.     */
-  /*                                                                       */
-  /*     clazz        :: A pointer to the font driver's class.  Note that  */
-  /*                     this is NOT root.clazz.  `class' wasn't used      */
-  /*                     as it is a reserved word in C++.                  */
-  /*                                                                       */
-  /*     faces_list   :: The list of faces currently opened by this        */
-  /*                     driver.                                           */
-  /*                                                                       */
-  /*     glyph_loader :: Unused.  Used to be glyph loader for all faces    */
-  /*                     managed by this driver.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_DriverRec
+   *
+   * @description:
+   *   The root font driver class.  A font driver is responsible for managing
+   *   and loading font files of a given format.
+   *
+   * @fields:
+   *   root ::
+   *     Contains the fields of the root module class.
+   *
+   *   clazz ::
+   *     A pointer to the font driver's class.  Note that this is NOT
+   *     root.clazz.  'class' wasn't used as it is a reserved word in C++.
+   *
+   *   faces_list ::
+   *     The list of faces currently opened by this driver.
+   *
+   *   glyph_loader ::
+   *     Unused.  Used to be glyph loader for all faces managed by this
+   *     driver.
+   */
   typedef struct  FT_DriverRec_
   {
     FT_ModuleRec     root;
@@ -847,72 +821,77 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /* This hook is used by the TrueType debugger.  It must be set to an */
-  /* alternate truetype bytecode interpreter function.                 */
-#define FT_DEBUG_HOOK_TRUETYPE  0
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    FT_LibraryRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The FreeType library class.  This is the root of all FreeType      */
-  /*    data.  Use FT_New_Library() to create a library object, and        */
-  /*    FT_Done_Library() to discard it and all child objects.             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    memory           :: The library's memory object.  Manages memory   */
-  /*                        allocation.                                    */
-  /*                                                                       */
-  /*    version_major    :: The major version number of the library.       */
-  /*                                                                       */
-  /*    version_minor    :: The minor version number of the library.       */
-  /*                                                                       */
-  /*    version_patch    :: The current patch level of the library.        */
-  /*                                                                       */
-  /*    num_modules      :: The number of modules currently registered     */
-  /*                        within this library.  This is set to 0 for new */
-  /*                        libraries.  New modules are added through the  */
-  /*                        FT_Add_Module() API function.                  */
-  /*                                                                       */
-  /*    modules          :: A table used to store handles to the currently */
-  /*                        registered modules. Note that each font driver */
-  /*                        contains a list of its opened faces.           */
-  /*                                                                       */
-  /*    renderers        :: The list of renderers currently registered     */
-  /*                        within the library.                            */
-  /*                                                                       */
-  /*    cur_renderer     :: The current outline renderer.  This is a       */
-  /*                        shortcut used to avoid parsing the list on     */
-  /*                        each call to FT_Outline_Render().  It is a     */
-  /*                        handle to the current renderer for the         */
-  /*                        FT_GLYPH_FORMAT_OUTLINE format.                */
-  /*                                                                       */
-  /*    auto_hinter      :: The auto-hinter module interface.              */
-  /*                                                                       */
-  /*    debug_hooks      :: An array of four function pointers that allow  */
-  /*                        debuggers to hook into a font format's         */
-  /*                        interpreter.  Currently, only the TrueType     */
-  /*                        bytecode debugger uses this.                   */
-  /*                                                                       */
-  /*    lcd_weights      :: If subpixel rendering is activated, the LCD    */
-  /*                        filter weights, if any.                        */
-  /*                                                                       */
-  /*    lcd_filter_func  :: If subpixel rendering is activated, the LCD    */
-  /*                        filtering callback function.                   */
-  /*                                                                       */
-  /*    pic_container    :: Contains global structs and tables, instead    */
-  /*                        of defining them globally.                     */
-  /*                                                                       */
-  /*    refcount         :: A counter initialized to~1 at the time an      */
-  /*                        @FT_Library structure is created.              */
-  /*                        @FT_Reference_Library increments this counter, */
-  /*                        and @FT_Done_Library only destroys a library   */
-  /*                        if the counter is~1, otherwise it simply       */
-  /*                        decrements it.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   FT_LibraryRec
+   *
+   * @description:
+   *   The FreeType library class.  This is the root of all FreeType data.
+   *   Use FT_New_Library() to create a library object, and FT_Done_Library()
+   *   to discard it and all child objects.
+   *
+   * @fields:
+   *   memory ::
+   *     The library's memory object.  Manages memory allocation.
+   *
+   *   version_major ::
+   *     The major version number of the library.
+   *
+   *   version_minor ::
+   *     The minor version number of the library.
+   *
+   *   version_patch ::
+   *     The current patch level of the library.
+   *
+   *   num_modules ::
+   *     The number of modules currently registered within this library.
+   *     This is set to 0 for new libraries.  New modules are added through
+   *     the FT_Add_Module() API function.
+   *
+   *   modules ::
+   *     A table used to store handles to the currently registered
+   *     modules. Note that each font driver contains a list of its opened
+   *     faces.
+   *
+   *   renderers ::
+   *     The list of renderers currently registered within the library.
+   *
+   *   cur_renderer ::
+   *     The current outline renderer.  This is a shortcut used to avoid
+   *     parsing the list on each call to FT_Outline_Render().  It is a
+   *     handle to the current renderer for the FT_GLYPH_FORMAT_OUTLINE
+   *     format.
+   *
+   *   auto_hinter ::
+   *     The auto-hinter module interface.
+   *
+   *   debug_hooks ::
+   *     An array of four function pointers that allow debuggers to hook into
+   *     a font format's interpreter.  Currently, only the TrueType bytecode
+   *     debugger uses this.
+   *
+   *   lcd_weights ::
+   *     The LCD filter weights for ClearType-style subpixel rendering.
+   *
+   *   lcd_filter_func ::
+   *     The LCD filtering callback function for for ClearType-style subpixel
+   *     rendering.
+   *
+   *   lcd_geometry ::
+   *     This array specifies LCD subpixel geometry and controls Harmony LCD
+   *     rendering technique, alternative to ClearType.
+   *
+   *   pic_container ::
+   *     Contains global structs and tables, instead of defining them
+   *     globally.
+   *
+   *   refcount ::
+   *     A counter initialized to~1 at the time an @FT_Library structure is
+   *     created.  @FT_Reference_Library increments this counter, and
+   *     @FT_Done_Library only destroys a library if the counter is~1,
+   *     otherwise it simply decrements it.
+   */
   typedef struct  FT_LibraryRec_
   {
     FT_Memory          memory;           /* library's memory manager */
@@ -933,10 +912,8 @@ FT_BEGIN_HEADER
 #ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
     FT_LcdFiveTapFilter      lcd_weights;      /* filter weights, if any */
     FT_Bitmap_LcdFilterFunc  lcd_filter_func;  /* filtering callback     */
-#endif
-
-#ifdef FT_CONFIG_OPTION_PIC
-    FT_PIC_Container   pic_container;
+#else
+    FT_Vector                lcd_geometry[3];  /* RGB subpixel positions */
 #endif
 
     FT_Int             refcount;
@@ -970,32 +947,33 @@ FT_BEGIN_HEADER
 
 #ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Memory                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Creates a new memory object.                                       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A pointer to the new memory object.  0 in case of error.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_New_Memory
+   *
+   * @description:
+   *   Creates a new memory object.
+   *
+   * @return:
+   *   A pointer to the new memory object.  0 in case of error.
+   */
   FT_BASE( FT_Memory )
   FT_New_Memory( void );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Done_Memory                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Discards memory manager.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory :: A handle to the memory manager.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Done_Memory
+   *
+   * @description:
+   *   Discards memory manager.
+   *
+   * @input:
+   *   memory ::
+   *     A handle to the memory manager.
+   */
   FT_BASE( void )
   FT_Done_Memory( FT_Memory  memory );
 
@@ -1013,37 +991,16 @@ FT_BEGIN_HEADER
 #endif
 
 
-  /*************************************************************************/
-  /*************************************************************************/
-  /*************************************************************************/
-  /****                                                                 ****/
-  /****                                                                 ****/
-  /****                      P I C   S U P P O R T                      ****/
-  /****                                                                 ****/
-  /****                                                                 ****/
-  /*************************************************************************/
-  /*************************************************************************/
-  /*************************************************************************/
-
-
-  /* PIC support macros for ftimage.h */
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_OUTLINE_FUNCS                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of FT_Outline_Funcs struct.         */
-  /*    When FT_CONFIG_OPTION_PIC is defined an init function will need    */
-  /*    to be called with a pre-allocated structure to be filled.          */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro        */
-  /*    is used).                                                          */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
-
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DEFINE_OUTLINE_FUNCS
+   *
+   * @description:
+   *   Used to initialize an instance of FT_Outline_Funcs struct.  The struct
+   *   will be allocated in the global scope (or the scope where the macro is
+   *   used).
+   */
 #define FT_DEFINE_OUTLINE_FUNCS(           \
           class_,                          \
           move_to_,                        \
@@ -1062,47 +1019,17 @@ FT_BEGIN_HEADER
     delta_                                 \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_OUTLINE_FUNCS(                     \
-          class_,                                    \
-          move_to_,                                  \
-          line_to_,                                  \
-          conic_to_,                                 \
-          cubic_to_,                                 \
-          shift_,                                    \
-          delta_ )                                   \
-  static FT_Error                                    \
-  Init_Class_ ## class_( FT_Outline_Funcs*  clazz )  \
-  {                                                  \
-    clazz->move_to  = move_to_;                      \
-    clazz->line_to  = line_to_;                      \
-    clazz->conic_to = conic_to_;                     \
-    clazz->cubic_to = cubic_to_;                     \
-    clazz->shift    = shift_;                        \
-    clazz->delta    = delta_;                        \
-                                                     \
-    return FT_Err_Ok;                                \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_RASTER_FUNCS                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of FT_Raster_Funcs struct.          */
-  /*    When FT_CONFIG_OPTION_PIC is defined an init function will need    */
-  /*    to be called with a pre-allocated structure to be filled.          */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro        */
-  /*    is used).                                                          */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
 
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DEFINE_RASTER_FUNCS
+   *
+   * @description:
+   *   Used to initialize an instance of FT_Raster_Funcs struct.  The struct
+   *   will be allocated in the global scope (or the scope where the macro is
+   *   used).
+   */
 #define FT_DEFINE_RASTER_FUNCS(    \
           class_,                  \
           glyph_format_,           \
@@ -1121,48 +1048,17 @@ FT_BEGIN_HEADER
     raster_done_                   \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_RASTER_FUNCS(                        \
-          class_,                                      \
-          glyph_format_,                               \
-          raster_new_,                                 \
-          raster_reset_,                               \
-          raster_set_mode_,                            \
-          raster_render_,                              \
-          raster_done_ )                               \
-  void                                                 \
-  FT_Init_Class_ ## class_( FT_Raster_Funcs*  clazz )  \
-  {                                                    \
-    clazz->glyph_format    = glyph_format_;            \
-    clazz->raster_new      = raster_new_;              \
-    clazz->raster_reset    = raster_reset_;            \
-    clazz->raster_set_mode = raster_set_mode_;         \
-    clazz->raster_render   = raster_render_;           \
-    clazz->raster_done     = raster_done_;             \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
 
 
-  /* PIC support macros for ftrender.h */
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_GLYPH                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of FT_Glyph_Class struct.           */
-  /*    When FT_CONFIG_OPTION_PIC is defined an init function will need    */
-  /*    to be called with a pre-allocated structure to be filled.          */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro        */
-  /*    is used).                                                          */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
-
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DEFINE_GLYPH
+   *
+   * @description:
+   *   The struct will be allocated in the global scope (or the scope where
+   *   the macro is used).
+   */
 #define FT_DEFINE_GLYPH(          \
           class_,                 \
           size_,                  \
@@ -1186,73 +1082,25 @@ FT_BEGIN_HEADER
     prepare_                      \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_GLYPH(                              \
-          class_,                                     \
-          size_,                                      \
-          format_,                                    \
-          init_,                                      \
-          done_,                                      \
-          copy_,                                      \
-          transform_,                                 \
-          bbox_,                                      \
-          prepare_ )                                  \
-  void                                                \
-  FT_Init_Class_ ## class_( FT_Glyph_Class*  clazz )  \
-  {                                                   \
-    clazz->glyph_size      = size_;                   \
-    clazz->glyph_format    = format_;                 \
-    clazz->glyph_init      = init_;                   \
-    clazz->glyph_done      = done_;                   \
-    clazz->glyph_copy      = copy_;                   \
-    clazz->glyph_transform = transform_;              \
-    clazz->glyph_bbox      = bbox_;                   \
-    clazz->glyph_prepare   = prepare_;                \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DECLARE_RENDERER                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to create a forward declaration of a                          */
-  /*    FT_Renderer_Class struct instance.                                 */
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_RENDERER                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of FT_Renderer_Class struct.        */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is defined a `create' function will      */
-  /*    need to be called with a pointer where the allocated structure is  */
-  /*    returned.  And when it is no longer needed a `destroy' function    */
-  /*    needs to be called to release that allocation.                     */
-  /*    `ftinit.c' (ft_create_default_module_classes) already contains     */
-  /*    a mechanism to call these functions for the default modules        */
-  /*    described in `ftmodule.h'.                                         */
-  /*                                                                       */
-  /*    Notice that the created `create' and `destroy' functions call      */
-  /*    `pic_init' and `pic_free' to allow you to manually allocate and    */
-  /*    initialize any additional global data, like a module specific      */
-  /*    interface, and put them in the global pic container defined in     */
-  /*    `ftpic.h'.  If you don't need them just implement the functions as */
-  /*    empty to resolve the link error.  Also the `pic_init' and          */
-  /*    `pic_free' functions should be declared in `pic.h', to be referred */
-  /*    by the renderer definition calling `FT_DEFINE_RENDERER' in the     */
-  /*    following.                                                         */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro        */
-  /*    is used).                                                          */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
 
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DECLARE_RENDERER
+   *
+   * @description:
+   *   Used to create a forward declaration of a FT_Renderer_Class struct
+   *   instance.
+   *
+   * @macro:
+   *   FT_DEFINE_RENDERER
+   *
+   * @description:
+   *   Used to initialize an instance of FT_Renderer_Class struct.
+   *
+   *   The struct will be allocated in the global scope (or the scope where
+   *   the macro is used).
+   */
 #define FT_DECLARE_RENDERER( class_ )               \
   FT_EXPORT_VAR( const FT_Renderer_Class ) class_;
 
@@ -1295,176 +1143,33 @@ FT_BEGIN_HEADER
     raster_class_                            \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DECLARE_RENDERER( class_ )  FT_DECLARE_MODULE( class_ )
-
-#define FT_DEFINE_RENDERER(                                      \
-          class_,                                                \
-          flags_,                                                \
-          size_,                                                 \
-          name_,                                                 \
-          version_,                                              \
-          requires_,                                             \
-          interface_,                                            \
-          init_,                                                 \
-          done_,                                                 \
-          get_interface_,                                        \
-          glyph_format_,                                         \
-          render_glyph_,                                         \
-          transform_glyph_,                                      \
-          get_glyph_cbox_,                                       \
-          set_mode_,                                             \
-          raster_class_ )                                        \
-  void                                                           \
-  FT_Destroy_Class_ ## class_( FT_Library        library,        \
-                               FT_Module_Class*  clazz )         \
-  {                                                              \
-    FT_Renderer_Class*  rclazz = (FT_Renderer_Class*)clazz;      \
-    FT_Memory           memory = library->memory;                \
-                                                                 \
-                                                                 \
-    class_ ## _pic_free( library );                              \
-    if ( rclazz )                                                \
-      FT_FREE( rclazz );                                         \
-  }                                                              \
-                                                                 \
-                                                                 \
-  FT_Error                                                       \
-  FT_Create_Class_ ## class_( FT_Library         library,        \
-                              FT_Module_Class**  output_class )  \
-  {                                                              \
-    FT_Renderer_Class*  clazz = NULL;                            \
-    FT_Error            error;                                   \
-    FT_Memory           memory = library->memory;                \
-                                                                 \
-                                                                 \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) ) )                  \
-      return error;                                              \
-                                                                 \
-    error = class_ ## _pic_init( library );                      \
-    if ( error )                                                 \
-    {                                                            \
-      FT_FREE( clazz );                                          \
-      return error;                                              \
-    }                                                            \
-                                                                 \
-    FT_DEFINE_ROOT_MODULE( flags_,                               \
-                           size_,                                \
-                           name_,                                \
-                           version_,                             \
-                           requires_,                            \
-                           interface_,                           \
-                           init_,                                \
-                           done_,                                \
-                           get_interface_ )                      \
-                                                                 \
-    clazz->glyph_format    = glyph_format_;                      \
-                                                                 \
-    clazz->render_glyph    = render_glyph_;                      \
-    clazz->transform_glyph = transform_glyph_;                   \
-    clazz->get_glyph_cbox  = get_glyph_cbox_;                    \
-    clazz->set_mode        = set_mode_;                          \
-                                                                 \
-    clazz->raster_class    = raster_class_;                      \
-                                                                 \
-    *output_class = (FT_Module_Class*)clazz;                     \
-                                                                 \
-    return FT_Err_Ok;                                            \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-  /* PIC support macros for ftmodapi.h **/
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Module_Creator                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to create (allocate) a new module class object.    */
-  /*    The object's members are initialized, but the module itself is     */
-  /*    not.                                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory       :: A handle to the memory manager.                    */
-  /*    output_class :: Initialized with the newly allocated class.        */
-  /*                                                                       */
-  typedef FT_Error
-  (*FT_Module_Creator)( FT_Memory          memory,
-                        FT_Module_Class**  output_class );
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    FT_Module_Destroyer                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to destroy (deallocate) a module class object.     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory :: A handle to the memory manager.                          */
-  /*    clazz  :: Module class to destroy.                                 */
-  /*                                                                       */
-  typedef void
-  (*FT_Module_Destroyer)( FT_Memory         memory,
-                          FT_Module_Class*  clazz );
-
-#endif
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DECLARE_MODULE                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to create a forward declaration of a                          */
-  /*    FT_Module_Class struct instance.                                   */
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_MODULE                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of an FT_Module_Class struct.       */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is defined a `create' function needs     */
-  /*    to be called with a pointer where the allocated structure is       */
-  /*    returned.  And when it is no longer needed a `destroy' function    */
-  /*    needs to be called to release that allocation.                     */
-  /*    `ftinit.c' (ft_create_default_module_classes) already contains     */
-  /*    a mechanism to call these functions for the default modules        */
-  /*    described in `ftmodule.h'.                                         */
-  /*                                                                       */
-  /*    Notice that the created `create' and `destroy' functions call      */
-  /*    `pic_init' and `pic_free' to allow you to manually allocate and    */
-  /*    initialize any additional global data, like a module specific      */
-  /*    interface, and put them in the global pic container defined in     */
-  /*    `ftpic.h'.  If you don't need them just implement the functions as */
-  /*    empty to resolve the link error.  Also the `pic_init' and          */
-  /*    `pic_free' functions should be declared in `pic.h', to be referred */
-  /*    by the module definition calling `FT_DEFINE_MODULE' in the         */
-  /*    following.                                                         */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the struct will be        */
-  /*    allocated in the global scope (or the scope where the macro        */
-  /*    is used).                                                          */
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_ROOT_MODULE                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an instance of an FT_Module_Class struct inside */
-  /*    another struct that contains it or in a function that initializes  */
-  /*    that containing struct.                                            */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
 
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DECLARE_MODULE
+   *
+   * @description:
+   *   Used to create a forward declaration of a FT_Module_Class struct
+   *   instance.
+   *
+   * @macro:
+   *   FT_DEFINE_MODULE
+   *
+   * @description:
+   *   Used to initialize an instance of an FT_Module_Class struct.
+   *
+   *   The struct will be allocated in the global scope (or the scope where
+   *   the macro is used).
+   *
+   * @macro:
+   *   FT_DEFINE_ROOT_MODULE
+   *
+   * @description:
+   *   Used to initialize an instance of an FT_Module_Class struct inside
+   *   another struct that contains it or in a function that initializes that
+   *   containing struct.
+   */
 #define FT_DECLARE_MODULE( class_ )  \
   FT_CALLBACK_TABLE                  \
   const FT_Module_Class  class_;
@@ -1523,100 +1228,6 @@ FT_BEGIN_HEADER
   };
 
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DECLARE_MODULE( class_ )                               \
-  FT_Error                                                        \
-  FT_Create_Class_ ## class_( FT_Library         library,         \
-                              FT_Module_Class**  output_class );  \
-  void                                                            \
-  FT_Destroy_Class_ ## class_( FT_Library        library,         \
-                               FT_Module_Class*  clazz );
-
-#define FT_DEFINE_ROOT_MODULE(                      \
-          flags_,                                   \
-          size_,                                    \
-          name_,                                    \
-          version_,                                 \
-          requires_,                                \
-          interface_,                               \
-          init_,                                    \
-          done_,                                    \
-          get_interface_ )                          \
-    clazz->root.module_flags     = flags_;          \
-    clazz->root.module_size      = size_;           \
-    clazz->root.module_name      = name_;           \
-    clazz->root.module_version   = version_;        \
-    clazz->root.module_requires  = requires_;       \
-                                                    \
-    clazz->root.module_interface = interface_;      \
-                                                    \
-    clazz->root.module_init      = init_;           \
-    clazz->root.module_done      = done_;           \
-    clazz->root.get_interface    = get_interface_;
-
-#define FT_DEFINE_MODULE(                                        \
-          class_,                                                \
-          flags_,                                                \
-          size_,                                                 \
-          name_,                                                 \
-          version_,                                              \
-          requires_,                                             \
-          interface_,                                            \
-          init_,                                                 \
-          done_,                                                 \
-          get_interface_ )                                       \
-  void                                                           \
-  FT_Destroy_Class_ ## class_( FT_Library        library,        \
-                               FT_Module_Class*  clazz )         \
-  {                                                              \
-    FT_Memory memory = library->memory;                          \
-                                                                 \
-                                                                 \
-    class_ ## _pic_free( library );                              \
-    if ( clazz )                                                 \
-      FT_FREE( clazz );                                          \
-  }                                                              \
-                                                                 \
-                                                                 \
-  FT_Error                                                       \
-  FT_Create_Class_ ## class_( FT_Library         library,        \
-                              FT_Module_Class**  output_class )  \
-  {                                                              \
-    FT_Memory         memory = library->memory;                  \
-    FT_Module_Class*  clazz  = NULL;                             \
-    FT_Error          error;                                     \
-                                                                 \
-                                                                 \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) ) )                  \
-      return error;                                              \
-    error = class_ ## _pic_init( library );                      \
-    if ( error )                                                 \
-    {                                                            \
-      FT_FREE( clazz );                                          \
-      return error;                                              \
-    }                                                            \
-                                                                 \
-    clazz->module_flags     = flags_;                            \
-    clazz->module_size      = size_;                             \
-    clazz->module_name      = name_;                             \
-    clazz->module_version   = version_;                          \
-    clazz->module_requires  = requires_;                         \
-                                                                 \
-    clazz->module_interface = interface_;                        \
-                                                                 \
-    clazz->module_init      = init_;                             \
-    clazz->module_done      = done_;                             \
-    clazz->get_interface    = get_interface_;                    \
-                                                                 \
-    *output_class = clazz;                                       \
-                                                                 \
-    return FT_Err_Ok;                                            \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
 FT_END_HEADER
 
 #endif /* FTOBJS_H_ */
diff --git a/thirdparty/freetype/include/freetype/internal/ftpic.h b/thirdparty/freetype/include/freetype/internal/ftpic.h
deleted file mode 100644
index 5214f05989..0000000000
--- a/thirdparty/freetype/include/freetype/internal/ftpic.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpic.h                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services (declaration).       */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*  Modules that ordinarily have const global data that need address     */
-  /*  can instead define pointers here.                                    */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-#ifndef FTPIC_H_
-#define FTPIC_H_
-
-
-FT_BEGIN_HEADER
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  typedef struct  FT_PIC_Container_
-  {
-    /* pic containers for base */
-    void*  base;
-
-    /* pic containers for modules */
-    void*  autofit;
-    void*  cff;
-    void*  pshinter;
-    void*  psnames;
-    void*  raster;
-    void*  sfnt;
-    void*  smooth;
-    void*  truetype;
-
-  } FT_PIC_Container;
-
-
-  /* Initialize the various function tables, structs, etc. */
-  /* stored in the container.                              */
-  FT_BASE( FT_Error )
-  ft_pic_container_init( FT_Library  library );
-
-
-  /* Destroy the contents of the container. */
-  FT_BASE( void )
-  ft_pic_container_destroy( FT_Library  library );
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-FT_END_HEADER
-
-#endif /* FTPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/internal/ftpsprop.h b/thirdparty/freetype/include/freetype/internal/ftpsprop.h
index abbb62862b..574837f6d4 100644
--- a/thirdparty/freetype/include/freetype/internal/ftpsprop.h
+++ b/thirdparty/freetype/include/freetype/internal/ftpsprop.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpsprop.h                                                             */
-/*                                                                         */
-/*    Get and set properties of PostScript drivers (specification).        */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftpsprop.h
+ *
+ *   Get and set properties of PostScript drivers (specification).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTPSPROP_H_
diff --git a/thirdparty/freetype/include/freetype/internal/ftrfork.h b/thirdparty/freetype/include/freetype/internal/ftrfork.h
index 1aca48a0e7..75b3e531bb 100644
--- a/thirdparty/freetype/include/freetype/internal/ftrfork.h
+++ b/thirdparty/freetype/include/freetype/internal/ftrfork.h
@@ -1,24 +1,24 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftrfork.h                                                              */
-/*                                                                         */
-/*    Embedded resource forks accessor (specification).                    */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Masatake YAMATO and Redhat K.K.                                        */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/* Development of the code in this file is support of                      */
-/* Information-technology Promotion Agency, Japan.                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftrfork.h
+ *
+ *   Embedded resource forks accessor (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * Masatake YAMATO and Redhat K.K.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ * Development of the code in this file is support of
+ * Information-technology Promotion Agency, Japan.
+ */
 
 
 #ifndef FTRFORK_H_
@@ -72,85 +72,65 @@ FT_BEGIN_HEADER
   } FT_RFork_Rule;
 
   /* For fast translation between rule index and rule type,
-   * the macros FT_RFORK_xxx should be kept consistent with
-   * the raccess_guess_funcs table
+   * the macros FT_RFORK_xxx should be kept consistent with the
+   * raccess_guess_funcs table
    */
   typedef struct ft_raccess_guess_rec_ {
     ft_raccess_guess_func  func;
     FT_RFork_Rule          type;
   } ft_raccess_guess_rec;
 
-#ifndef FT_CONFIG_OPTION_PIC
 
-  /* this array is a storage in non-PIC mode, so ; is needed in END */
 #define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type )  \
           static const type name[] = {
 #define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix )  \
           { raccess_guess_ ## func_suffix,                           \
             FT_RFork_Rule_ ## type_suffix },
+  /* this array is a storage, thus a final `;' is needed */
 #define CONST_FT_RFORK_RULE_ARRAY_END  };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-  /* this array is a function in PIC mode, so no ; is needed in END */
-#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type )  \
-          void                                         \
-          FT_Init_Table_ ## name( type*  storage )     \
-          {                                            \
-            type*  local = storage;                    \
-                                                       \
-                                                       \
-            int  i = 0;
-#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix )  \
-          local[i].func = raccess_guess_ ## func_suffix;             \
-          local[i].type = FT_RFork_Rule_ ## type_suffix;             \
-          i++;
-#define CONST_FT_RFORK_RULE_ARRAY_END  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
 #endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Raccess_Guess                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Guess a file name and offset where the actual resource fork is     */
-  /*    stored.  The macro FT_RACCESS_N_RULES holds the number of          */
-  /*    guessing rules;  the guessed result for the Nth rule is            */
-  /*    represented as a triplet: a new file name (new_names[N]), a file   */
-  /*    offset (offsets[N]), and an error code (errors[N]).                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library ::                                                         */
-  /*      A FreeType library instance.                                     */
-  /*                                                                       */
-  /*    stream ::                                                          */
-  /*      A file stream containing the resource fork.                      */
-  /*                                                                       */
-  /*    base_name ::                                                       */
-  /*      The (base) file name of the resource fork used for some          */
-  /*      guessing rules.                                                  */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    new_names ::                                                       */
-  /*      An array of guessed file names in which the resource forks may   */
-  /*      exist.  If `new_names[N]' is NULL, the guessed file name is      */
-  /*      equal to `base_name'.                                            */
-  /*                                                                       */
-  /*    offsets ::                                                         */
-  /*      An array of guessed file offsets.  `offsets[N]' holds the file   */
-  /*      offset of the possible start of the resource fork in file        */
-  /*      `new_names[N]'.                                                  */
-  /*                                                                       */
-  /*    errors ::                                                          */
-  /*      An array of FreeType error codes.  `errors[N]' is the error      */
-  /*      code of Nth guessing rule function.  If `errors[N]' is not       */
-  /*      FT_Err_Ok, `new_names[N]' and `offsets[N]' are meaningless.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Raccess_Guess
+   *
+   * @description:
+   *   Guess a file name and offset where the actual resource fork is stored.
+   *   The macro FT_RACCESS_N_RULES holds the number of guessing rules; the
+   *   guessed result for the Nth rule is represented as a triplet: a new
+   *   file name (new_names[N]), a file offset (offsets[N]), and an error
+   *   code (errors[N]).
+   *
+   * @input:
+   *   library ::
+   *     A FreeType library instance.
+   *
+   *   stream ::
+   *     A file stream containing the resource fork.
+   *
+   *   base_name ::
+   *     The (base) file name of the resource fork used for some guessing
+   *     rules.
+   *
+   * @output:
+   *   new_names ::
+   *     An array of guessed file names in which the resource forks may
+   *     exist.  If 'new_names[N]' is `NULL`, the guessed file name is equal
+   *     to `base_name`.
+   *
+   *   offsets ::
+   *     An array of guessed file offsets.  'offsets[N]' holds the file
+   *     offset of the possible start of the resource fork in file
+   *     'new_names[N]'.
+   *
+   *   errors ::
+   *     An array of FreeType error codes.  'errors[N]' is the error code of
+   *     Nth guessing rule function.  If 'errors[N]' is not FT_Err_Ok,
+   *     'new_names[N]' and 'offsets[N]' are meaningless.
+   */
   FT_BASE( void )
   FT_Raccess_Guess( FT_Library  library,
                     FT_Stream   stream,
@@ -160,37 +140,37 @@ FT_BEGIN_HEADER
                     FT_Error*   errors );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Raccess_Get_HeaderInfo                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the information from the header of resource fork.  The         */
-  /*    information includes the file offset where the resource map        */
-  /*    starts, and the file offset where the resource data starts.        */
-  /*    `FT_Raccess_Get_DataOffsets' requires these two data.              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library ::                                                         */
-  /*      A FreeType library instance.                                     */
-  /*                                                                       */
-  /*    stream ::                                                          */
-  /*      A file stream containing the resource fork.                      */
-  /*                                                                       */
-  /*    rfork_offset ::                                                    */
-  /*      The file offset where the resource fork starts.                  */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    map_offset ::                                                      */
-  /*      The file offset where the resource map starts.                   */
-  /*                                                                       */
-  /*    rdata_pos ::                                                       */
-  /*      The file offset where the resource data starts.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  FT_Err_Ok means success.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Raccess_Get_HeaderInfo
+   *
+   * @description:
+   *   Get the information from the header of resource fork.  The information
+   *   includes the file offset where the resource map starts, and the file
+   *   offset where the resource data starts.  `FT_Raccess_Get_DataOffsets`
+   *   requires these two data.
+   *
+   * @input:
+   *   library ::
+   *     A FreeType library instance.
+   *
+   *   stream ::
+   *     A file stream containing the resource fork.
+   *
+   *   rfork_offset ::
+   *     The file offset where the resource fork starts.
+   *
+   * @output:
+   *   map_offset ::
+   *     The file offset where the resource map starts.
+   *
+   *   rdata_pos ::
+   *     The file offset where the resource data starts.
+   *
+   * @return:
+   *   FreeType error code.  FT_Err_Ok means success.
+   */
   FT_BASE( FT_Error )
   FT_Raccess_Get_HeaderInfo( FT_Library  library,
                              FT_Stream   stream,
@@ -199,55 +179,54 @@ FT_BEGIN_HEADER
                              FT_Long    *rdata_pos );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Raccess_Get_DataOffsets                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the data offsets for a tag in a resource fork.  Offsets are    */
-  /*    stored in an array because, in some cases, resources in a resource */
-  /*    fork have the same tag.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    library ::                                                         */
-  /*      A FreeType library instance.                                     */
-  /*                                                                       */
-  /*    stream ::                                                          */
-  /*      A file stream containing the resource fork.                      */
-  /*                                                                       */
-  /*    map_offset ::                                                      */
-  /*      The file offset where the resource map starts.                   */
-  /*                                                                       */
-  /*    rdata_pos ::                                                       */
-  /*      The file offset where the resource data starts.                  */
-  /*                                                                       */
-  /*    tag ::                                                             */
-  /*      The resource tag.                                                */
-  /*                                                                       */
-  /*    sort_by_res_id ::                                                  */
-  /*      A Boolean to sort the fragmented resource by their ids.          */
-  /*      The fragmented resources for `POST' resource should be sorted    */
-  /*      to restore Type1 font properly.  For `sfnt' resources, sorting   */
-  /*      may induce a different order of the faces in comparison to that  */
-  /*      by QuickDraw API.                                                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    offsets ::                                                         */
-  /*      The stream offsets for the resource data specified by `tag'.     */
-  /*      This array is allocated by the function, so you have to call     */
-  /*      @ft_mem_free after use.                                          */
-  /*                                                                       */
-  /*    count ::                                                           */
-  /*      The length of offsets array.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  FT_Err_Ok means success.                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Normally you should use `FT_Raccess_Get_HeaderInfo' to get the     */
-  /*    value for `map_offset' and `rdata_pos'.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Raccess_Get_DataOffsets
+   *
+   * @description:
+   *   Get the data offsets for a tag in a resource fork.  Offsets are stored
+   *   in an array because, in some cases, resources in a resource fork have
+   *   the same tag.
+   *
+   * @input:
+   *   library ::
+   *     A FreeType library instance.
+   *
+   *   stream ::
+   *     A file stream containing the resource fork.
+   *
+   *   map_offset ::
+   *     The file offset where the resource map starts.
+   *
+   *   rdata_pos ::
+   *     The file offset where the resource data starts.
+   *
+   *   tag ::
+   *     The resource tag.
+   *
+   *   sort_by_res_id ::
+   *     A Boolean to sort the fragmented resource by their ids.  The
+   *     fragmented resources for 'POST' resource should be sorted to restore
+   *     Type1 font properly.  For 'sfnt' resources, sorting may induce a
+   *     different order of the faces in comparison to that by QuickDraw API.
+   *
+   * @output:
+   *   offsets ::
+   *     The stream offsets for the resource data specified by 'tag'.  This
+   *     array is allocated by the function, so you have to call @ft_mem_free
+   *     after use.
+   *
+   *   count ::
+   *     The length of offsets array.
+   *
+   * @return:
+   *   FreeType error code.  FT_Err_Ok means success.
+   *
+   * @note:
+   *   Normally you should use `FT_Raccess_Get_HeaderInfo` to get the value
+   *   for `map_offset` and `rdata_pos`.
+   */
   FT_BASE( FT_Error )
   FT_Raccess_Get_DataOffsets( FT_Library  library,
                               FT_Stream   stream,
diff --git a/thirdparty/freetype/include/freetype/internal/ftserv.h b/thirdparty/freetype/include/freetype/internal/ftserv.h
index e01c1679b5..8836cf3f18 100644
--- a/thirdparty/freetype/include/freetype/internal/ftserv.h
+++ b/thirdparty/freetype/include/freetype/internal/ftserv.h
@@ -1,31 +1,31 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftserv.h                                                               */
-/*                                                                         */
-/*    The FreeType services (specification only).                          */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*  Each module can export one or more `services'.  Each service is      */
-  /*  identified by a constant string and modeled by a pointer; the latter */
-  /*  generally corresponds to a structure containing function pointers.   */
-  /*                                                                       */
-  /*  Note that a service's data cannot be a mere function pointer because */
-  /*  in C it is possible that function pointers might be implemented      */
-  /*  differently than data pointers (e.g. 48 bits instead of 32).         */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftserv.h
+ *
+ *   The FreeType services (specification only).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * Each module can export one or more 'services'.  Each service is
+   * identified by a constant string and modeled by a pointer; the latter
+   * generally corresponds to a structure containing function pointers.
+   *
+   * Note that a service's data cannot be a mere function pointer because in
+   * C it is possible that function pointers might be implemented differently
+   * than data pointers (e.g. 48 bits instead of 32).
+   *
+   */
 
 
 #ifndef FTSERV_H_
@@ -34,7 +34,8 @@
 
 FT_BEGIN_HEADER
 
-  /*
+  /**************************************************************************
+   *
    * @macro:
    *   FT_FACE_FIND_SERVICE
    *
@@ -46,15 +47,15 @@ FT_BEGIN_HEADER
    *     The source face handle.
    *
    *   id ::
-   *     A string describing the service as defined in the service's
-   *     header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
-   *     `multi-masters').  It is automatically prefixed with
-   *     `FT_SERVICE_ID_'.
+   *     A string describing the service as defined in the service's header
+   *     files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
+   *     'multi-masters').  It is automatically prefixed with
+   *     `FT_SERVICE_ID_`.
    *
    * @output:
    *   ptr ::
-   *     A variable that receives the service pointer.  Will be NULL
-   *     if not found.
+   *     A variable that receives the service pointer.  Will be `NULL` if not
+   *     found.
    */
 #ifdef __cplusplus
 
@@ -85,7 +86,8 @@ FT_BEGIN_HEADER
 #endif /* !C++ */
 
 
-  /*
+  /**************************************************************************
+   *
    * @macro:
    *   FT_FACE_FIND_GLOBAL_SERVICE
    *
@@ -97,15 +99,15 @@ FT_BEGIN_HEADER
    *     The source face handle.
    *
    *   id ::
-   *     A string describing the service as defined in the service's
-   *     header files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
-   *     `multi-masters').  It is automatically prefixed with
-   *     `FT_SERVICE_ID_'.
+   *     A string describing the service as defined in the service's header
+   *     files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
+   *     'multi-masters').  It is automatically prefixed with
+   *     `FT_SERVICE_ID_`.
    *
    * @output:
    *   ptr ::
-   *     A variable that receives the service pointer.  Will be NULL
-   *     if not found.
+   *     A variable that receives the service pointer.  Will be `NULL` if not
+   *     found.
    */
 #ifdef __cplusplus
 
@@ -144,8 +146,8 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
   /*
-   *  The following structure is used to _describe_ a given service
-   *  to the library.  This is useful to build simple static service lists.
+   * The following structure is used to _describe_ a given service to the
+   * library.  This is useful to build simple static service lists.
    */
   typedef struct  FT_ServiceDescRec_
   {
@@ -157,35 +159,26 @@ FT_BEGIN_HEADER
   typedef const FT_ServiceDescRec*  FT_ServiceDesc;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Macro>                                                               */
-  /*    FT_DEFINE_SERVICEDESCREC1                                          */
-  /*    FT_DEFINE_SERVICEDESCREC2                                          */
-  /*    FT_DEFINE_SERVICEDESCREC3                                          */
-  /*    FT_DEFINE_SERVICEDESCREC4                                          */
-  /*    FT_DEFINE_SERVICEDESCREC5                                          */
-  /*    FT_DEFINE_SERVICEDESCREC6                                          */
-  /*    FT_DEFINE_SERVICEDESCREC7                                          */
-  /*    FT_DEFINE_SERVICEDESCREC8                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Used to initialize an array of FT_ServiceDescRec structures.       */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is defined a `create' function needs to  */
-  /*    be called with a pointer to return an allocated array.  As soon as */
-  /*    it is no longer needed, a `destroy' function needs to be called to */
-  /*    release that allocation.                                           */
-  /*                                                                       */
-  /*    These functions should be manually called from the `pic_init' and  */
-  /*    `pic_free' functions of your module (see FT_DEFINE_MODULE).        */
-  /*                                                                       */
-  /*    When FT_CONFIG_OPTION_PIC is not defined the array will be         */
-  /*    allocated in the global scope (or the scope where the macro is     */
-  /*    used).                                                             */
-  /*                                                                       */
-#ifndef FT_CONFIG_OPTION_PIC
-
+  /**************************************************************************
+   *
+   * @macro:
+   *   FT_DEFINE_SERVICEDESCREC1
+   *   FT_DEFINE_SERVICEDESCREC2
+   *   FT_DEFINE_SERVICEDESCREC3
+   *   FT_DEFINE_SERVICEDESCREC4
+   *   FT_DEFINE_SERVICEDESCREC5
+   *   FT_DEFINE_SERVICEDESCREC6
+   *   FT_DEFINE_SERVICEDESCREC7
+   *   FT_DEFINE_SERVICEDESCREC8
+   *   FT_DEFINE_SERVICEDESCREC9
+   *   FT_DEFINE_SERVICEDESCREC10
+   *
+   * @description:
+   *   Used to initialize an array of FT_ServiceDescRec structures.
+   *
+   *   The array will be allocated in the global scope (or the scope where
+   *   the macro is used).
+   */
 #define FT_DEFINE_SERVICEDESCREC1( class_,                                  \
                                    serv_id_1, serv_data_1 )                 \
   static const FT_ServiceDescRec  class_[] =                                \
@@ -356,504 +349,15 @@ FT_BEGIN_HEADER
     { NULL, NULL }                                                          \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICEDESCREC1( class_,                                  \
-                                   serv_id_1, serv_data_1 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 2 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = NULL;                                              \
-    clazz[1].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC2( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 3 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = NULL;                                              \
-    clazz[2].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC3( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 4 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = NULL;                                              \
-    clazz[3].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC4( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3,                  \
-                                   serv_id_4, serv_data_4 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 5 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = serv_id_4;                                         \
-    clazz[3].serv_data = serv_data_4;                                       \
-    clazz[4].serv_id   = NULL;                                              \
-    clazz[4].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC5( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3,                  \
-                                   serv_id_4, serv_data_4,                  \
-                                   serv_id_5, serv_data_5 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 6 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = serv_id_4;                                         \
-    clazz[3].serv_data = serv_data_4;                                       \
-    clazz[4].serv_id   = serv_id_5;                                         \
-    clazz[4].serv_data = serv_data_5;                                       \
-    clazz[5].serv_id   = NULL;                                              \
-    clazz[5].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC6( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3,                  \
-                                   serv_id_4, serv_data_4,                  \
-                                   serv_id_5, serv_data_5,                  \
-                                   serv_id_6, serv_data_6 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 7 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = serv_id_4;                                         \
-    clazz[3].serv_data = serv_data_4;                                       \
-    clazz[4].serv_id   = serv_id_5;                                         \
-    clazz[4].serv_data = serv_data_5;                                       \
-    clazz[5].serv_id   = serv_id_6;                                         \
-    clazz[5].serv_data = serv_data_6;                                       \
-    clazz[6].serv_id   = NULL;                                              \
-    clazz[6].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC7( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3,                  \
-                                   serv_id_4, serv_data_4,                  \
-                                   serv_id_5, serv_data_5,                  \
-                                   serv_id_6, serv_data_6,                  \
-                                   serv_id_7, serv_data_7 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 8 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = serv_id_4;                                         \
-    clazz[3].serv_data = serv_data_4;                                       \
-    clazz[4].serv_id   = serv_id_5;                                         \
-    clazz[4].serv_data = serv_data_5;                                       \
-    clazz[5].serv_id   = serv_id_6;                                         \
-    clazz[5].serv_data = serv_data_6;                                       \
-    clazz[6].serv_id   = serv_id_7;                                         \
-    clazz[6].serv_data = serv_data_7;                                       \
-    clazz[7].serv_id   = NULL;                                              \
-    clazz[7].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC8( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3,                  \
-                                   serv_id_4, serv_data_4,                  \
-                                   serv_id_5, serv_data_5,                  \
-                                   serv_id_6, serv_data_6,                  \
-                                   serv_id_7, serv_data_7,                  \
-                                   serv_id_8, serv_data_8 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 9 ) )                         \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = serv_id_4;                                         \
-    clazz[3].serv_data = serv_data_4;                                       \
-    clazz[4].serv_id   = serv_id_5;                                         \
-    clazz[4].serv_data = serv_data_5;                                       \
-    clazz[5].serv_id   = serv_id_6;                                         \
-    clazz[5].serv_data = serv_data_6;                                       \
-    clazz[6].serv_id   = serv_id_7;                                         \
-    clazz[6].serv_data = serv_data_7;                                       \
-    clazz[7].serv_id   = serv_id_8;                                         \
-    clazz[7].serv_data = serv_data_8;                                       \
-    clazz[8].serv_id   = NULL;                                              \
-    clazz[8].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC9( class_,                                  \
-                                   serv_id_1, serv_data_1,                  \
-                                   serv_id_2, serv_data_2,                  \
-                                   serv_id_3, serv_data_3,                  \
-                                   serv_id_4, serv_data_4,                  \
-                                   serv_id_5, serv_data_5,                  \
-                                   serv_id_6, serv_data_6,                  \
-                                   serv_id_7, serv_data_7,                  \
-                                   serv_id_8, serv_data_8,                  \
-                                   serv_id_9, serv_data_9 )                 \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 10 ) )                        \
-      return error;                                                         \
-                                                                            \
-    clazz[0].serv_id   = serv_id_1;                                         \
-    clazz[0].serv_data = serv_data_1;                                       \
-    clazz[1].serv_id   = serv_id_2;                                         \
-    clazz[1].serv_data = serv_data_2;                                       \
-    clazz[2].serv_id   = serv_id_3;                                         \
-    clazz[2].serv_data = serv_data_3;                                       \
-    clazz[3].serv_id   = serv_id_4;                                         \
-    clazz[3].serv_data = serv_data_4;                                       \
-    clazz[4].serv_id   = serv_id_5;                                         \
-    clazz[4].serv_data = serv_data_5;                                       \
-    clazz[5].serv_id   = serv_id_6;                                         \
-    clazz[5].serv_data = serv_data_6;                                       \
-    clazz[6].serv_id   = serv_id_7;                                         \
-    clazz[6].serv_data = serv_data_7;                                       \
-    clazz[7].serv_id   = serv_id_8;                                         \
-    clazz[7].serv_data = serv_data_8;                                       \
-    clazz[8].serv_id   = serv_id_9;                                         \
-    clazz[8].serv_data = serv_data_9;                                       \
-    clazz[9].serv_id   = NULL;                                              \
-    clazz[9].serv_data = NULL;                                              \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#define FT_DEFINE_SERVICEDESCREC10( class_,                                 \
-                                    serv_id_1, serv_data_1,                 \
-                                    serv_id_2, serv_data_2,                 \
-                                    serv_id_3, serv_data_3,                 \
-                                    serv_id_4, serv_data_4,                 \
-                                    serv_id_5, serv_data_5,                 \
-                                    serv_id_6, serv_data_6,                 \
-                                    serv_id_7, serv_data_7,                 \
-                                    serv_id_8, serv_data_8,                 \
-                                    serv_id_9, serv_data_9,                 \
-                                    serv_id_10, serv_data_10 )              \
-  void                                                                      \
-  FT_Destroy_Class_ ## class_( FT_Library          library,                 \
-                               FT_ServiceDescRec*  clazz )                  \
-  {                                                                         \
-    FT_Memory  memory = library->memory;                                    \
-                                                                            \
-                                                                            \
-    if ( clazz )                                                            \
-      FT_FREE( clazz );                                                     \
-  }                                                                         \
-                                                                            \
-  FT_Error                                                                  \
-  FT_Create_Class_ ## class_( FT_Library           library,                 \
-                              FT_ServiceDescRec**  output_class )           \
-  {                                                                         \
-    FT_ServiceDescRec*  clazz  = NULL;                                      \
-    FT_Error            error;                                              \
-    FT_Memory           memory = library->memory;                           \
-                                                                            \
-                                                                            \
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 11 ) )                        \
-      return error;                                                         \
-                                                                            \
-    clazz[ 0].serv_id   = serv_id_1;                                        \
-    clazz[ 0].serv_data = serv_data_1;                                      \
-    clazz[ 1].serv_id   = serv_id_2;                                        \
-    clazz[ 1].serv_data = serv_data_2;                                      \
-    clazz[ 2].serv_id   = serv_id_3;                                        \
-    clazz[ 2].serv_data = serv_data_3;                                      \
-    clazz[ 3].serv_id   = serv_id_4;                                        \
-    clazz[ 3].serv_data = serv_data_4;                                      \
-    clazz[ 4].serv_id   = serv_id_5;                                        \
-    clazz[ 4].serv_data = serv_data_5;                                      \
-    clazz[ 5].serv_id   = serv_id_6;                                        \
-    clazz[ 5].serv_data = serv_data_6;                                      \
-    clazz[ 6].serv_id   = serv_id_7;                                        \
-    clazz[ 6].serv_data = serv_data_7;                                      \
-    clazz[ 7].serv_id   = serv_id_8;                                        \
-    clazz[ 7].serv_data = serv_data_8;                                      \
-    clazz[ 8].serv_id   = serv_id_9;                                        \
-    clazz[ 8].serv_data = serv_data_9;                                      \
-    clazz[ 9].serv_id   = serv_id_10;                                       \
-    clazz[ 9].serv_data = serv_data_10;                                     \
-    clazz[10].serv_id   = NULL;                                             \
-    clazz[10].serv_data = NULL;                                             \
-                                                                            \
-    *output_class = clazz;                                                  \
-                                                                            \
-    return FT_Err_Ok;                                                       \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
 
   /*
-   *  Parse a list of FT_ServiceDescRec descriptors and look for
-   *  a specific service by ID.  Note that the last element in the
-   *  array must be { NULL, NULL }, and that the function should
-   *  return NULL if the service isn't available.
+   * Parse a list of FT_ServiceDescRec descriptors and look for a specific
+   * service by ID.  Note that the last element in the array must be { NULL,
+   * NULL }, and that the function should return NULL if the service isn't
+   * available.
    *
-   *  This function can be used by modules to implement their
-   *  `get_service' method.
+   * This function can be used by modules to implement their `get_service'
+   * method.
    */
   FT_BASE( FT_Pointer )
   ft_service_list_lookup( FT_ServiceDesc  service_descriptors,
@@ -869,16 +373,16 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
   /*
-   *  This structure is used to store a cache for several frequently used
-   *  services.  It is the type of `face->internal->services'.  You
-   *  should only use FT_FACE_LOOKUP_SERVICE to access it.
+   * This structure is used to store a cache for several frequently used
+   * services.  It is the type of `face->internal->services'.  You should
+   * only use FT_FACE_LOOKUP_SERVICE to access it.
    *
-   *  All fields should have the type FT_Pointer to relax compilation
-   *  dependencies.  We assume the developer isn't completely stupid.
+   * All fields should have the type FT_Pointer to relax compilation
+   * dependencies.  We assume the developer isn't completely stupid.
    *
-   *  Each field must be named `service_XXXX' where `XXX' corresponds to
-   *  the correct FT_SERVICE_ID_XXXX macro.  See the definition of
-   *  FT_FACE_LOOKUP_SERVICE below how this is implemented.
+   * Each field must be named `service_XXXX' where `XXX' corresponds to the
+   * correct FT_SERVICE_ID_XXXX macro.  See the definition of
+   * FT_FACE_LOOKUP_SERVICE below how this is implemented.
    *
    */
   typedef struct  FT_ServiceCacheRec_
@@ -894,14 +398,15 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A magic number used within the services cache.
+   * A magic number used within the services cache.
    */
 
   /* ensure that value `1' has the same width as a pointer */
 #define FT_SERVICE_UNAVAILABLE  ((FT_Pointer)~(FT_PtrDist)1)
 
 
-  /*
+  /**************************************************************************
+   *
    * @macro:
    *   FT_FACE_LOOKUP_SERVICE
    *
@@ -910,7 +415,7 @@ FT_BEGIN_HEADER
    *   using its cache.
    *
    * @input:
-   *   face::
+   *   face ::
    *     The source face handle containing the cache.
    *
    *   field ::
@@ -921,7 +426,7 @@ FT_BEGIN_HEADER
    *
    * @output:
    *   ptr ::
-   *     A variable receiving the service data.  NULL if not available.
+   *     A variable receiving the service data.  `NULL` if not available.
    */
 #ifdef __cplusplus
 
@@ -969,7 +474,7 @@ FT_BEGIN_HEADER
 #endif /* !C++ */
 
   /*
-   *  A macro used to define new service structure types.
+   * A macro used to define new service structure types.
    */
 
 #define FT_DEFINE_SERVICE( name )            \
@@ -982,7 +487,7 @@ FT_BEGIN_HEADER
   /* */
 
   /*
-   *  The header files containing the services.
+   * The header files containing the services.
    */
 
 #define FT_SERVICE_BDF_H                <freetype/internal/services/svbdf.h>
diff --git a/thirdparty/freetype/include/freetype/internal/ftstream.h b/thirdparty/freetype/include/freetype/internal/ftstream.h
index f90002fe77..e4dca0b0a5 100644
--- a/thirdparty/freetype/include/freetype/internal/ftstream.h
+++ b/thirdparty/freetype/include/freetype/internal/ftstream.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftstream.h                                                             */
-/*                                                                         */
-/*    Stream handling (specification).                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftstream.h
+ *
+ *   Stream handling (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTSTREAM_H_
@@ -96,13 +96,13 @@ FT_BEGIN_HEADER
   /* The structure type must be set in the FT_STRUCTURE macro before       */
   /* calling the FT_FRAME_START() macro.                                   */
   /*                                                                       */
-#define FT_FIELD_SIZE( f ) \
+#define FT_FIELD_SIZE( f )                          \
           (FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f )
 
-#define FT_FIELD_SIZE_DELTA( f ) \
+#define FT_FIELD_SIZE_DELTA( f )                       \
           (FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f[0] )
 
-#define FT_FIELD_OFFSET( f ) \
+#define FT_FIELD_OFFSET( f )                         \
           (FT_UShort)( offsetof( FT_STRUCTURE, f ) )
 
 #define FT_FRAME_FIELD( frame_op, field ) \
@@ -147,11 +147,11 @@ FT_BEGIN_HEADER
 #define FT_FRAME_SKIP_BYTES( count )  { ft_frame_skip, count, 0 }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Integer extraction macros -- the `buffer' parameter must ALWAYS be of */
-  /* type `char*' or equivalent (1-byte elements).                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Integer extraction macros -- the 'buffer' parameter must ALWAYS be of
+   * type 'char*' or equivalent (1-byte elements).
+   */
 
 #define FT_BYTE_( p, i )  ( ((const FT_Byte*)(p))[(i)] )
 
@@ -165,6 +165,10 @@ FT_BEGIN_HEADER
 #define FT_BYTE_U32( p, i, s )  ( FT_UINT32( FT_BYTE_( p, i ) ) << (s) )
 
 
+  /*
+   * `FT_PEEK_XXX' are generic macros to get data from a buffer position.  No
+   * safety checks are performed.
+   */
 #define FT_PEEK_SHORT( p )  FT_INT16( FT_BYTE_U16( p, 0, 8 ) | \
                                       FT_BYTE_U16( p, 1, 0 ) )
 
@@ -213,7 +217,10 @@ FT_BEGIN_HEADER
                                           FT_BYTE_U32( p, 1,  8 ) | \
                                           FT_BYTE_U32( p, 0,  0 ) )
 
-
+  /*
+   * `FT_NEXT_XXX' are generic macros to get data from a buffer position
+   * which is then increased appropriately.  No safety checks are performed.
+   */
 #define FT_NEXT_CHAR( buffer )       \
           ( (signed char)*buffer++ )
 
@@ -258,10 +265,14 @@ FT_BEGIN_HEADER
           ( (unsigned long)( buffer += 4, FT_PEEK_ULONG_LE( buffer - 4 ) ) )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Each GET_xxxx() macro uses an implicit `stream' variable.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The `FT_GET_XXX` macros use an implicit 'stream' variable.
+   *
+   * Note that a call to `FT_STREAM_SEEK` or `FT_STREAM_POS` has **no**
+   * effect on `FT_GET_XXX`!  They operate on `stream->pos`, while
+   * `FT_GET_XXX` use `stream->cursor`.
+   */
 #if 0
 #define FT_GET_MACRO( type )    FT_NEXT_ ## type ( stream->cursor )
 
@@ -299,10 +310,18 @@ FT_BEGIN_HEADER
 #define FT_GET_ULONG_LE()   FT_GET_MACRO( FT_Stream_GetULongLE, FT_ULong )
 #endif
 
+
 #define FT_READ_MACRO( func, type, var )        \
           ( var = (type)func( stream, &error ), \
             error != FT_Err_Ok )
 
+  /*
+   * The `FT_READ_XXX' macros use implicit `stream' and `error' variables.
+   *
+   * `FT_READ_XXX' can be controlled with `FT_STREAM_SEEK' and
+   * `FT_STREAM_POS'.  They use the full machinery to check whether a read is
+   * valid.
+   */
 #define FT_READ_BYTE( var )       FT_READ_MACRO( FT_Stream_ReadChar, FT_Byte, var )
 #define FT_READ_CHAR( var )       FT_READ_MACRO( FT_Stream_ReadChar, FT_Char, var )
 #define FT_READ_SHORT( var )      FT_READ_MACRO( FT_Stream_ReadUShort, FT_Short, var )
@@ -387,12 +406,14 @@ FT_BEGIN_HEADER
 
   /* Enter a frame of `count' consecutive bytes in a stream.  Returns an */
   /* error if the frame could not be read/accessed.  The caller can use  */
-  /* the FT_Stream_Get_XXX functions to retrieve frame data without      */
+  /* the `FT_Stream_GetXXX' functions to retrieve frame data without     */
   /* error checks.                                                       */
   /*                                                                     */
-  /* You must _always_ call FT_Stream_ExitFrame() once you have entered  */
+  /* You must _always_ call `FT_Stream_ExitFrame' once you have entered  */
   /* a stream frame!                                                     */
   /*                                                                     */
+  /* Nested frames are not permitted.                                    */
+  /*                                                                     */
   FT_BASE( FT_Error )
   FT_Stream_EnterFrame( FT_Stream  stream,
                         FT_ULong   count );
@@ -401,25 +422,29 @@ FT_BEGIN_HEADER
   FT_BASE( void )
   FT_Stream_ExitFrame( FT_Stream  stream );
 
+
   /* Extract a stream frame.  If the stream is disk-based, a heap block */
   /* is allocated and the frame bytes are read into it.  If the stream  */
-  /* is memory-based, this function simply set a pointer to the data.   */
+  /* is memory-based, this function simply sets a pointer to the data.  */
   /*                                                                    */
   /* Useful to optimize access to memory-based streams transparently.   */
   /*                                                                    */
-  /* All extracted frames must be `freed' with a call to the function   */
-  /* FT_Stream_ReleaseFrame().                                          */
+  /* `FT_Stream_GetXXX' functions can't be used.                        */
+  /*                                                                    */
+  /* An extracted frame must be `freed' with a call to the function     */
+  /* `FT_Stream_ReleaseFrame'.                                          */
   /*                                                                    */
   FT_BASE( FT_Error )
   FT_Stream_ExtractFrame( FT_Stream  stream,
                           FT_ULong   count,
                           FT_Byte**  pbytes );
 
-  /* release an extract frame (see FT_Stream_ExtractFrame) */
+  /* release an extract frame (see `FT_Stream_ExtractFrame') */
   FT_BASE( void )
   FT_Stream_ReleaseFrame( FT_Stream  stream,
                           FT_Byte**  pbytes );
 
+
   /* read a byte from an entered frame */
   FT_BASE( FT_Char )
   FT_Stream_GetChar( FT_Stream  stream );
diff --git a/thirdparty/freetype/include/freetype/internal/fttrace.h b/thirdparty/freetype/include/freetype/internal/fttrace.h
index 8092e41fd7..8089babfb6 100644
--- a/thirdparty/freetype/include/freetype/internal/fttrace.h
+++ b/thirdparty/freetype/include/freetype/internal/fttrace.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fttrace.h                                                              */
-/*                                                                         */
-/*    Tracing handling (specification only).                               */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fttrace.h
+ *
+ *   Tracing handling (specification only).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /* definitions of trace levels for FreeType 2 */
@@ -23,23 +23,24 @@ FT_TRACE_DEF( any )
 
   /* base components */
 FT_TRACE_DEF( calc )      /* calculations            (ftcalc.c)   */
+FT_TRACE_DEF( gloader )   /* glyph loader            (ftgloadr.c) */
+FT_TRACE_DEF( glyph )     /* glyph management        (ftglyph.c)  */
 FT_TRACE_DEF( memory )    /* memory manager          (ftobjs.c)   */
-FT_TRACE_DEF( stream )    /* stream manager          (ftstream.c) */
+FT_TRACE_DEF( init )      /* initialization          (ftinit.c)   */
 FT_TRACE_DEF( io )        /* i/o interface           (ftsystem.c) */
 FT_TRACE_DEF( list )      /* list management         (ftlist.c)   */
-FT_TRACE_DEF( init )      /* initialization          (ftinit.c)   */
 FT_TRACE_DEF( objs )      /* base objects            (ftobjs.c)   */
 FT_TRACE_DEF( outline )   /* outline management      (ftoutln.c)  */
-FT_TRACE_DEF( glyph )     /* glyph management        (ftglyph.c)  */
-FT_TRACE_DEF( gloader )   /* glyph loader            (ftgloadr.c) */
+FT_TRACE_DEF( stream )    /* stream manager          (ftstream.c) */
 
-FT_TRACE_DEF( raster )    /* monochrome rasterizer   (ftraster.c) */
-FT_TRACE_DEF( smooth )    /* anti-aliasing raster    (ftgrays.c)  */
+FT_TRACE_DEF( bitmap )    /* bitmap manipulation     (ftbitmap.c) */
+FT_TRACE_DEF( checksum )  /* bitmap checksum         (ftobjs.c)   */
 FT_TRACE_DEF( mm )        /* MM interface            (ftmm.c)     */
+FT_TRACE_DEF( psprops )   /* PS driver properties    (ftpsprop.c) */
 FT_TRACE_DEF( raccess )   /* resource fork accessor  (ftrfork.c)  */
+FT_TRACE_DEF( raster )    /* monochrome rasterizer   (ftraster.c) */
+FT_TRACE_DEF( smooth )    /* anti-aliasing raster    (ftgrays.c)  */
 FT_TRACE_DEF( synth )     /* bold/slant synthesizer  (ftsynth.c)  */
-FT_TRACE_DEF( bitmap )    /* bitmap checksum         (ftobjs.c)   */
-FT_TRACE_DEF( psprops )   /* PS driver properties    (ftpsprop.c) */
 
   /* Cache sub-system */
 FT_TRACE_DEF( cache )     /* cache sub-system        (ftcache.c, etc.) */
@@ -47,21 +48,23 @@ FT_TRACE_DEF( cache )     /* cache sub-system        (ftcache.c, etc.) */
   /* SFNT driver components */
 FT_TRACE_DEF( sfdriver )  /* SFNT font driver        (sfdriver.c) */
 FT_TRACE_DEF( sfobjs )    /* SFNT object handler     (sfobjs.c)   */
+FT_TRACE_DEF( ttbdf )     /* TrueType embedded BDF   (ttbdf.c)    */
 FT_TRACE_DEF( ttcmap )    /* charmap handler         (ttcmap.c)   */
+FT_TRACE_DEF( ttcolr )    /* glyph layer table       (ttcolr.c)   */
+FT_TRACE_DEF( ttcpal )    /* color palette table     (ttcpal.c)   */
 FT_TRACE_DEF( ttkern )    /* kerning handler         (ttkern.c)   */
 FT_TRACE_DEF( ttload )    /* basic TrueType tables   (ttload.c)   */
 FT_TRACE_DEF( ttmtx )     /* metrics-related tables  (ttmtx.c)    */
 FT_TRACE_DEF( ttpost )    /* PS table processing     (ttpost.c)   */
 FT_TRACE_DEF( ttsbit )    /* TrueType sbit handling  (ttsbit.c)   */
-FT_TRACE_DEF( ttbdf )     /* TrueType embedded BDF   (ttbdf.c)    */
 
   /* TrueType driver components */
 FT_TRACE_DEF( ttdriver )  /* TT font driver          (ttdriver.c) */
 FT_TRACE_DEF( ttgload )   /* TT glyph loader         (ttgload.c)  */
+FT_TRACE_DEF( ttgxvar )   /* TrueType GX var handler (ttgxvar.c)  */
 FT_TRACE_DEF( ttinterp )  /* bytecode interpreter    (ttinterp.c) */
 FT_TRACE_DEF( ttobjs )    /* TT objects manager      (ttobjs.c)   */
 FT_TRACE_DEF( ttpload )   /* TT data/program loader  (ttpload.c)  */
-FT_TRACE_DEF( ttgxvar )   /* TrueType GX var handler (ttgxvar.c)  */
 
   /* Type 1 driver components */
 FT_TRACE_DEF( t1afm )
@@ -72,14 +75,14 @@ FT_TRACE_DEF( t1objs )
 FT_TRACE_DEF( t1parse )
 
   /* PostScript helper module `psaux' */
-FT_TRACE_DEF( t1decode )
 FT_TRACE_DEF( cffdecode )
-FT_TRACE_DEF( psobjs )
 FT_TRACE_DEF( psconv )
+FT_TRACE_DEF( psobjs )
+FT_TRACE_DEF( t1decode )
 
   /* PostScript hinting module `pshinter' */
-FT_TRACE_DEF( pshrec )
 FT_TRACE_DEF( pshalgo )
+FT_TRACE_DEF( pshrec )
 
   /* Type 2 driver components */
 FT_TRACE_DEF( cffdriver )
@@ -117,7 +120,6 @@ FT_TRACE_DEF( bdflib )
 FT_TRACE_DEF( pfr )
 
   /* OpenType validation components */
-FT_TRACE_DEF( otvmodule )
 FT_TRACE_DEF( otvcommon )
 FT_TRACE_DEF( otvbase )
 FT_TRACE_DEF( otvgdef )
@@ -125,29 +127,30 @@ FT_TRACE_DEF( otvgpos )
 FT_TRACE_DEF( otvgsub )
 FT_TRACE_DEF( otvjstf )
 FT_TRACE_DEF( otvmath )
+FT_TRACE_DEF( otvmodule )
 
   /* TrueTypeGX/AAT validation components */
-FT_TRACE_DEF( gxvmodule )
+FT_TRACE_DEF( gxvbsln )
 FT_TRACE_DEF( gxvcommon )
 FT_TRACE_DEF( gxvfeat )
-FT_TRACE_DEF( gxvmort )
-FT_TRACE_DEF( gxvmorx )
-FT_TRACE_DEF( gxvbsln )
 FT_TRACE_DEF( gxvjust )
 FT_TRACE_DEF( gxvkern )
+FT_TRACE_DEF( gxvmodule )
+FT_TRACE_DEF( gxvmort )
+FT_TRACE_DEF( gxvmorx )
+FT_TRACE_DEF( gxvlcar )
 FT_TRACE_DEF( gxvopbd )
-FT_TRACE_DEF( gxvtrak )
 FT_TRACE_DEF( gxvprop )
-FT_TRACE_DEF( gxvlcar )
+FT_TRACE_DEF( gxvtrak )
 
   /* autofit components */
-FT_TRACE_DEF( afmodule )
-FT_TRACE_DEF( afhints )
 FT_TRACE_DEF( afcjk )
+FT_TRACE_DEF( afglobal )
+FT_TRACE_DEF( afhints )
+FT_TRACE_DEF( afmodule )
 FT_TRACE_DEF( aflatin )
 FT_TRACE_DEF( aflatin2 )
-FT_TRACE_DEF( afwarp )
 FT_TRACE_DEF( afshaper )
-FT_TRACE_DEF( afglobal )
+FT_TRACE_DEF( afwarp )
 
 /* END */
diff --git a/thirdparty/freetype/include/freetype/internal/ftvalid.h b/thirdparty/freetype/include/freetype/internal/ftvalid.h
index cad47a556d..38aa06cc4e 100644
--- a/thirdparty/freetype/include/freetype/internal/ftvalid.h
+++ b/thirdparty/freetype/include/freetype/internal/ftvalid.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftvalid.h                                                              */
-/*                                                                         */
-/*    FreeType validation support (specification).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftvalid.h
+ *
+ *   FreeType validation support (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTVALID_H_
@@ -42,31 +42,31 @@ FT_BEGIN_HEADER
   typedef struct FT_ValidatorRec_ volatile*  FT_Validator;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* There are three distinct validation levels defined here:              */
-  /*                                                                       */
-  /* FT_VALIDATE_DEFAULT ::                                                */
-  /*   A table that passes this validation level can be used reliably by   */
-  /*   FreeType.  It generally means that all offsets have been checked to */
-  /*   prevent out-of-bound reads, that array counts are correct, etc.     */
-  /*                                                                       */
-  /* FT_VALIDATE_TIGHT ::                                                  */
-  /*   A table that passes this validation level can be used reliably and  */
-  /*   doesn't contain invalid data.  For example, a charmap table that    */
-  /*   returns invalid glyph indices will not pass, even though it can     */
-  /*   be used with FreeType in default mode (the library will simply      */
-  /*   return an error later when trying to load the glyph).               */
-  /*                                                                       */
-  /*   It also checks that fields which must be a multiple of 2, 4, or 8,  */
-  /*   don't have incorrect values, etc.                                   */
-  /*                                                                       */
-  /* FT_VALIDATE_PARANOID ::                                               */
-  /*   Only for font debugging.  Checks that a table follows the           */
-  /*   specification by 100%.  Very few fonts will be able to pass this    */
-  /*   level anyway but it can be useful for certain tools like font       */
-  /*   editors/converters.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * There are three distinct validation levels defined here:
+   *
+   * FT_VALIDATE_DEFAULT ::
+   *   A table that passes this validation level can be used reliably by
+   *   FreeType.  It generally means that all offsets have been checked to
+   *   prevent out-of-bound reads, that array counts are correct, etc.
+   *
+   * FT_VALIDATE_TIGHT ::
+   *   A table that passes this validation level can be used reliably and
+   *   doesn't contain invalid data.  For example, a charmap table that
+   *   returns invalid glyph indices will not pass, even though it can be
+   *   used with FreeType in default mode (the library will simply return an
+   *   error later when trying to load the glyph).
+   *
+   *   It also checks that fields which must be a multiple of 2, 4, or 8,
+   *   don't have incorrect values, etc.
+   *
+   * FT_VALIDATE_PARANOID ::
+   *   Only for font debugging.  Checks that a table follows the
+   *   specification by 100%.  Very few fonts will be able to pass this level
+   *   anyway but it can be useful for certain tools like font
+   *   editors/converters.
+   */
   typedef enum  FT_ValidationLevel_
   {
     FT_VALIDATE_DEFAULT = 0,
diff --git a/thirdparty/freetype/include/freetype/internal/internal.h b/thirdparty/freetype/include/freetype/internal/internal.h
index 8f546e443b..173d8ad906 100644
--- a/thirdparty/freetype/include/freetype/internal/internal.h
+++ b/thirdparty/freetype/include/freetype/internal/internal.h
@@ -1,31 +1,30 @@
-/***************************************************************************/
-/*                                                                         */
-/*  internal.h                                                             */
-/*                                                                         */
-/*    Internal header files (specification only).                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * internal.h
+ *
+ *   Internal header files (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is automatically included by `ft2build.h'.                  */
-  /* Do not include it manually!                                           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * This file is automatically included by `ft2build.h`.  Do not include it
+   * manually!
+   *
+   */
 
 
 #define FT_INTERNAL_OBJECTS_H             <freetype/internal/ftobjs.h>
-#define FT_INTERNAL_PIC_H                 <freetype/internal/ftpic.h>
 #define FT_INTERNAL_STREAM_H              <freetype/internal/ftstream.h>
 #define FT_INTERNAL_MEMORY_H              <freetype/internal/ftmemory.h>
 #define FT_INTERNAL_DEBUG_H               <freetype/internal/ftdebug.h>
diff --git a/thirdparty/freetype/include/freetype/internal/psaux.h b/thirdparty/freetype/include/freetype/internal/psaux.h
index f77380d25f..3ab01c3e68 100644
--- a/thirdparty/freetype/include/freetype/internal/psaux.h
+++ b/thirdparty/freetype/include/freetype/internal/psaux.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psaux.h                                                                */
-/*                                                                         */
-/*    Auxiliary functions and data structures related to PostScript fonts  */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psaux.h
+ *
+ *   Auxiliary functions and data structures related to PostScript fonts
+ *   (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSAUX_H_
@@ -35,10 +35,10 @@
 FT_BEGIN_HEADER
 
 
-  /***********************************************************************/
-  /*                                                                     */
-  /* PostScript modules driver class.                                    */
-  /*                                                                     */
+  /**************************************************************************
+   *
+   * PostScript modules driver class.
+   */
   typedef struct  PS_DriverRec_
   {
     FT_DriverRec  root;
@@ -64,23 +64,27 @@ FT_BEGIN_HEADER
   typedef const struct PS_Table_FuncsRec_*  PS_Table_Funcs;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_Table_FuncsRec                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A set of function pointers to manage PS_Table objects.             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    table_init    :: Used to initialize a table.                       */
-  /*                                                                       */
-  /*    table_done    :: Finalizes resp. destroy a given table.            */
-  /*                                                                       */
-  /*    table_add     :: Adds a new object to a table.                     */
-  /*                                                                       */
-  /*    table_release :: Releases table data, then finalizes it.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_Table_FuncsRec
+   *
+   * @description:
+   *   A set of function pointers to manage PS_Table objects.
+   *
+   * @fields:
+   *   table_init ::
+   *     Used to initialize a table.
+   *
+   *   table_done ::
+   *     Finalizes resp. destroy a given table.
+   *
+   *   table_add ::
+   *     Adds a new object to a table.
+   *
+   *   table_release ::
+   *     Releases table data, then finalizes it.
+   */
   typedef struct  PS_Table_FuncsRec_
   {
     FT_Error
@@ -103,41 +107,47 @@ FT_BEGIN_HEADER
   } PS_Table_FuncsRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_TableRec                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A PS_Table is a simple object used to store an array of objects in */
-  /*    a single memory block.                                             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    block     :: The address in memory of the growheap's block.  This  */
-  /*                 can change between two object adds, due to            */
-  /*                 reallocation.                                         */
-  /*                                                                       */
-  /*    cursor    :: The current top of the grow heap within its block.    */
-  /*                                                                       */
-  /*    capacity  :: The current size of the heap block.  Increments by    */
-  /*                 1kByte chunks.                                        */
-  /*                                                                       */
-  /*    init      :: Set to 0xDEADBEEF if `elements' and `lengths' have    */
-  /*                 been allocated.                                       */
-  /*                                                                       */
-  /*    max_elems :: The maximum number of elements in table.              */
-  /*                                                                       */
-  /*    num_elems :: The current number of elements in table.              */
-  /*                                                                       */
-  /*    elements  :: A table of element addresses within the block.        */
-  /*                                                                       */
-  /*    lengths   :: A table of element sizes within the block.            */
-  /*                                                                       */
-  /*    memory    :: The object used for memory operations                 */
-  /*                 (alloc/realloc).                                      */
-  /*                                                                       */
-  /*    funcs     :: A table of method pointers for this object.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_TableRec
+   *
+   * @description:
+   *   A PS_Table is a simple object used to store an array of objects in a
+   *   single memory block.
+   *
+   * @fields:
+   *   block ::
+   *     The address in memory of the growheap's block.  This can change
+   *     between two object adds, due to reallocation.
+   *
+   *   cursor ::
+   *     The current top of the grow heap within its block.
+   *
+   *   capacity ::
+   *     The current size of the heap block.  Increments by 1kByte chunks.
+   *
+   *   init ::
+   *     Set to 0xDEADBEEF if 'elements' and 'lengths' have been allocated.
+   *
+   *   max_elems ::
+   *     The maximum number of elements in table.
+   *
+   *   num_elems ::
+   *     The current number of elements in table.
+   *
+   *   elements ::
+   *     A table of element addresses within the block.
+   *
+   *   lengths ::
+   *     A table of element sizes within the block.
+   *
+   *   memory ::
+   *     The object used for memory operations (alloc/realloc).
+   *
+   *   funcs ::
+   *     A table of method pointers for this object.
+   */
   typedef struct  PS_TableRec_
   {
     FT_Byte*           block;          /* current memory block           */
@@ -425,27 +435,33 @@ FT_BEGIN_HEADER
   } PS_Parser_FuncsRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_ParserRec                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A PS_Parser is an object used to parse a Type 1 font very quickly. */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    cursor :: The current position in the text.                        */
-  /*                                                                       */
-  /*    base   :: Start of the processed text.                             */
-  /*                                                                       */
-  /*    limit  :: End of the processed text.                               */
-  /*                                                                       */
-  /*    error  :: The last error returned.                                 */
-  /*                                                                       */
-  /*    memory :: The object used for memory operations (alloc/realloc).   */
-  /*                                                                       */
-  /*    funcs  :: A table of functions for the parser.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_ParserRec
+   *
+   * @description:
+   *   A PS_Parser is an object used to parse a Type 1 font very quickly.
+   *
+   * @fields:
+   *   cursor ::
+   *     The current position in the text.
+   *
+   *   base ::
+   *     Start of the processed text.
+   *
+   *   limit ::
+   *     End of the processed text.
+   *
+   *   error ::
+   *     The last error returned.
+   *
+   *   memory ::
+   *     The object used for memory operations (alloc/realloc).
+   *
+   *   funcs ::
+   *     A table of functions for the parser.
+   */
   typedef struct  PS_ParserRec_
   {
     FT_Byte*   cursor;
@@ -484,51 +500,67 @@ FT_BEGIN_HEADER
   } PS_Builder_FuncsRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Structure>                                                           */
-  /*    PS_Builder                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*     A structure used during glyph loading to store its outline.       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    memory       :: The current memory object.                         */
-  /*                                                                       */
-  /*    face         :: The current face object.                           */
-  /*                                                                       */
-  /*    glyph        :: The current glyph slot.                            */
-  /*                                                                       */
-  /*    loader       :: XXX                                                */
-  /*                                                                       */
-  /*    base         :: The base glyph outline.                            */
-  /*                                                                       */
-  /*    current      :: The current glyph outline.                         */
-  /*                                                                       */
-  /*    pos_x        :: The horizontal translation (if composite glyph).   */
-  /*                                                                       */
-  /*    pos_y        :: The vertical translation (if composite glyph).     */
-  /*                                                                       */
-  /*    left_bearing :: The left side bearing point.                       */
-  /*                                                                       */
-  /*    advance      :: The horizontal advance vector.                     */
-  /*                                                                       */
-  /*    bbox         :: Unused.                                            */
-  /*                                                                       */
-  /*    path_begun   :: A flag which indicates that a new path has begun.  */
-  /*                                                                       */
-  /*    load_points  :: If this flag is not set, no points are loaded.     */
-  /*                                                                       */
-  /*    no_recurse   :: Set but not used.                                  */
-  /*                                                                       */
-  /*    metrics_only :: A boolean indicating that we only want to compute  */
-  /*                    the metrics of a given glyph, not load all of its  */
-  /*                    points.                                            */
-  /*                                                                       */
-  /*    is_t1        :: Set if current font type is Type 1.                */
-  /*                                                                       */
-  /*    funcs        :: An array of function pointers for the builder.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_Builder
+   *
+   * @description:
+   *    A structure used during glyph loading to store its outline.
+   *
+   * @fields:
+   *   memory ::
+   *     The current memory object.
+   *
+   *   face ::
+   *     The current face object.
+   *
+   *   glyph ::
+   *     The current glyph slot.
+   *
+   *   loader ::
+   *     XXX
+   *
+   *   base ::
+   *     The base glyph outline.
+   *
+   *   current ::
+   *     The current glyph outline.
+   *
+   *   pos_x ::
+   *     The horizontal translation (if composite glyph).
+   *
+   *   pos_y ::
+   *     The vertical translation (if composite glyph).
+   *
+   *   left_bearing ::
+   *     The left side bearing point.
+   *
+   *   advance ::
+   *     The horizontal advance vector.
+   *
+   *   bbox ::
+   *     Unused.
+   *
+   *   path_begun ::
+   *     A flag which indicates that a new path has begun.
+   *
+   *   load_points ::
+   *     If this flag is not set, no points are loaded.
+   *
+   *   no_recurse ::
+   *     Set but not used.
+   *
+   *   metrics_only ::
+   *     A boolean indicating that we only want to compute the metrics of a
+   *     given glyph, not load all of its points.
+   *
+   *   is_t1 ::
+   *     Set if current font type is Type 1.
+   *
+   *   funcs ::
+   *     An array of function pointers for the builder.
+   */
   struct  PS_Builder_
   {
     FT_Memory       memory;
@@ -729,54 +761,70 @@ FT_BEGIN_HEADER
   } T1_ParseState;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Structure>                                                           */
-  /*    T1_BuilderRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*     A structure used during glyph loading to store its outline.       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    memory       :: The current memory object.                         */
-  /*                                                                       */
-  /*    face         :: The current face object.                           */
-  /*                                                                       */
-  /*    glyph        :: The current glyph slot.                            */
-  /*                                                                       */
-  /*    loader       :: XXX                                                */
-  /*                                                                       */
-  /*    base         :: The base glyph outline.                            */
-  /*                                                                       */
-  /*    current      :: The current glyph outline.                         */
-  /*                                                                       */
-  /*    max_points   :: maximum points in builder outline                  */
-  /*                                                                       */
-  /*    max_contours :: Maximum number of contours in builder outline.     */
-  /*                                                                       */
-  /*    pos_x        :: The horizontal translation (if composite glyph).   */
-  /*                                                                       */
-  /*    pos_y        :: The vertical translation (if composite glyph).     */
-  /*                                                                       */
-  /*    left_bearing :: The left side bearing point.                       */
-  /*                                                                       */
-  /*    advance      :: The horizontal advance vector.                     */
-  /*                                                                       */
-  /*    bbox         :: Unused.                                            */
-  /*                                                                       */
-  /*    parse_state  :: An enumeration which controls the charstring       */
-  /*                    parsing state.                                     */
-  /*                                                                       */
-  /*    load_points  :: If this flag is not set, no points are loaded.     */
-  /*                                                                       */
-  /*    no_recurse   :: Set but not used.                                  */
-  /*                                                                       */
-  /*    metrics_only :: A boolean indicating that we only want to compute  */
-  /*                    the metrics of a given glyph, not load all of its  */
-  /*                    points.                                            */
-  /*                                                                       */
-  /*    funcs        :: An array of function pointers for the builder.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   T1_BuilderRec
+   *
+   * @description:
+   *    A structure used during glyph loading to store its outline.
+   *
+   * @fields:
+   *   memory ::
+   *     The current memory object.
+   *
+   *   face ::
+   *     The current face object.
+   *
+   *   glyph ::
+   *     The current glyph slot.
+   *
+   *   loader ::
+   *     XXX
+   *
+   *   base ::
+   *     The base glyph outline.
+   *
+   *   current ::
+   *     The current glyph outline.
+   *
+   *   max_points ::
+   *     maximum points in builder outline
+   *
+   *   max_contours ::
+   *     Maximum number of contours in builder outline.
+   *
+   *   pos_x ::
+   *     The horizontal translation (if composite glyph).
+   *
+   *   pos_y ::
+   *     The vertical translation (if composite glyph).
+   *
+   *   left_bearing ::
+   *     The left side bearing point.
+   *
+   *   advance ::
+   *     The horizontal advance vector.
+   *
+   *   bbox ::
+   *     Unused.
+   *
+   *   parse_state ::
+   *     An enumeration which controls the charstring parsing state.
+   *
+   *   load_points ::
+   *     If this flag is not set, no points are loaded.
+   *
+   *   no_recurse ::
+   *     Set but not used.
+   *
+   *   metrics_only ::
+   *     A boolean indicating that we only want to compute the metrics of a
+   *     given glyph, not load all of its points.
+   *
+   *   funcs ::
+   *     An array of function pointers for the builder.
+   */
   typedef struct  T1_BuilderRec_
   {
     FT_Memory       memory;
@@ -817,19 +865,19 @@ FT_BEGIN_HEADER
 
 #if 0
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine   */
-  /* calls during glyph loading.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine
+   * calls during glyph loading.
+   */
 #define T1_MAX_SUBRS_CALLS  8
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity.  A     */
-  /* minimum of 16 is required.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity.  A
+   * minimum of 16 is required.
+   */
 #define T1_MAX_CHARSTRINGS_OPERANDS  32
 
 #endif /* 0 */
@@ -993,53 +1041,70 @@ FT_BEGIN_HEADER
   } CFF_Builder_FuncsRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Structure>                                                           */
-  /*    CFF_Builder                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*     A structure used during glyph loading to store its outline.       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    memory        :: The current memory object.                        */
-  /*                                                                       */
-  /*    face          :: The current face object.                          */
-  /*                                                                       */
-  /*    glyph         :: The current glyph slot.                           */
-  /*                                                                       */
-  /*    loader        :: The current glyph loader.                         */
-  /*                                                                       */
-  /*    base          :: The base glyph outline.                           */
-  /*                                                                       */
-  /*    current       :: The current glyph outline.                        */
-  /*                                                                       */
-  /*    pos_x         :: The horizontal translation (if composite glyph).  */
-  /*                                                                       */
-  /*    pos_y         :: The vertical translation (if composite glyph).    */
-  /*                                                                       */
-  /*    left_bearing  :: The left side bearing point.                      */
-  /*                                                                       */
-  /*    advance       :: The horizontal advance vector.                    */
-  /*                                                                       */
-  /*    bbox          :: Unused.                                           */
-  /*                                                                       */
-  /*    path_begun    :: A flag which indicates that a new path has begun. */
-  /*                                                                       */
-  /*    load_points   :: If this flag is not set, no points are loaded.    */
-  /*                                                                       */
-  /*    no_recurse    :: Set but not used.                                 */
-  /*                                                                       */
-  /*    metrics_only  :: A boolean indicating that we only want to compute */
-  /*                     the metrics of a given glyph, not load all of its */
-  /*                     points.                                           */
-  /*                                                                       */
-  /*    hints_funcs   :: Auxiliary pointer for hinting.                    */
-  /*                                                                       */
-  /*    hints_globals :: Auxiliary pointer for hinting.                    */
-  /*                                                                       */
-  /*    funcs         :: A table of method pointers for this object.       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CFF_Builder
+   *
+   * @description:
+   *    A structure used during glyph loading to store its outline.
+   *
+   * @fields:
+   *   memory ::
+   *     The current memory object.
+   *
+   *   face ::
+   *     The current face object.
+   *
+   *   glyph ::
+   *     The current glyph slot.
+   *
+   *   loader ::
+   *     The current glyph loader.
+   *
+   *   base ::
+   *     The base glyph outline.
+   *
+   *   current ::
+   *     The current glyph outline.
+   *
+   *   pos_x ::
+   *     The horizontal translation (if composite glyph).
+   *
+   *   pos_y ::
+   *     The vertical translation (if composite glyph).
+   *
+   *   left_bearing ::
+   *     The left side bearing point.
+   *
+   *   advance ::
+   *     The horizontal advance vector.
+   *
+   *   bbox ::
+   *     Unused.
+   *
+   *   path_begun ::
+   *     A flag which indicates that a new path has begun.
+   *
+   *   load_points ::
+   *     If this flag is not set, no points are loaded.
+   *
+   *   no_recurse ::
+   *     Set but not used.
+   *
+   *   metrics_only ::
+   *     A boolean indicating that we only want to compute the metrics of a
+   *     given glyph, not load all of its points.
+   *
+   *   hints_funcs ::
+   *     Auxiliary pointer for hinting.
+   *
+   *   hints_globals ::
+   *     Auxiliary pointer for hinting.
+   *
+   *   funcs ::
+   *     A table of method pointers for this object.
+   */
   struct  CFF_Builder_
   {
     FT_Memory       memory;
@@ -1211,25 +1276,27 @@ FT_BEGIN_HEADER
   typedef struct AFM_StreamRec_*  AFM_Stream;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    AFM_ParserRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An AFM_Parser is a parser for the AFM files.                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    memory    :: The object used for memory operations (alloc and      */
-  /*                 realloc).                                             */
-  /*                                                                       */
-  /*    stream    :: This is an opaque object.                             */
-  /*                                                                       */
-  /*    FontInfo  :: The result will be stored here.                       */
-  /*                                                                       */
-  /*    get_index :: A user provided function to get a glyph index by its  */
-  /*                 name.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   AFM_ParserRec
+   *
+   * @description:
+   *   An AFM_Parser is a parser for the AFM files.
+   *
+   * @fields:
+   *   memory ::
+   *     The object used for memory operations (alloc and realloc).
+   *
+   *   stream ::
+   *     This is an opaque object.
+   *
+   *   FontInfo ::
+   *     The result will be stored here.
+   *
+   *   get_index ::
+   *     A user provided function to get a glyph index by its name.
+   */
   typedef struct  AFM_ParserRec_
   {
     FT_Memory     memory;
diff --git a/thirdparty/freetype/include/freetype/internal/pshints.h b/thirdparty/freetype/include/freetype/internal/pshints.h
index d29314ec2e..699acea6f5 100644
--- a/thirdparty/freetype/include/freetype/internal/pshints.h
+++ b/thirdparty/freetype/include/freetype/internal/pshints.h
@@ -1,21 +1,21 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshints.h                                                              */
-/*                                                                         */
-/*    Interface to Postscript-specific (Type 1 and Type 2) hints           */
-/*    recorders (specification only).  These are used to support native    */
-/*    T1/T2 hints in the `type1', `cid', and `cff' font drivers.           */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshints.h
+ *
+ *   Interface to Postscript-specific (Type 1 and Type 2) hints
+ *   recorders (specification only).  These are used to support native
+ *   T1/T2 hints in the 'type1', 'cid', and 'cff' font drivers.
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSHINTS_H_
@@ -73,7 +73,7 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   T1_Hints
@@ -86,16 +86,16 @@ FT_BEGIN_HEADER
    *   @T1_Hints_FuncsRec structure.  Recording glyph hints is normally
    *   achieved through the following scheme:
    *
-   *   - Open a new hint recording session by calling the `open' method.
+   *   - Open a new hint recording session by calling the 'open' method.
    *     This rewinds the recorder and prepare it for new input.
    *
    *   - For each hint found in the glyph charstring, call the corresponding
-   *     method (`stem', `stem3', or `reset').  Note that these functions do
+   *     method ('stem', 'stem3', or 'reset').  Note that these functions do
    *     not return an error code.
    *
-   *   - Close the recording session by calling the `close' method.  It
-   *     returns an error code if the hints were invalid or something
-   *     strange happened (e.g., memory shortage).
+   *   - Close the recording session by calling the 'close' method.  It
+   *     returns an error code if the hints were invalid or something strange
+   *     happened (e.g., memory shortage).
    *
    *   The hints accumulated in the object can later be used by the
    *   PostScript hinter.
@@ -104,7 +104,7 @@ FT_BEGIN_HEADER
   typedef struct T1_HintsRec_*  T1_Hints;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   T1_Hints_Funcs
@@ -117,7 +117,7 @@ FT_BEGIN_HEADER
   typedef const struct T1_Hints_FuncsRec_*  T1_Hints_Funcs;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T1_Hints_OpenFunc
@@ -139,14 +139,14 @@ FT_BEGIN_HEADER
   (*T1_Hints_OpenFunc)( T1_Hints  hints );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T1_Hints_SetStemFunc
    *
    * @description:
    *   A method of the @T1_Hints class used to record a new horizontal or
-   *   vertical stem.  This corresponds to the Type 1 `hstem' and `vstem'
+   *   vertical stem.  This corresponds to the Type 1 'hstem' and 'vstem'
    *   operators.
    *
    * @input:
@@ -164,15 +164,15 @@ FT_BEGIN_HEADER
    *   Use vertical coordinates (y) for horizontal stems (dim=0).  Use
    *   horizontal coordinates (x) for vertical stems (dim=1).
    *
-   *   `coords[0]' is the absolute stem position (lowest coordinate);
-   *   `coords[1]' is the length.
+   *   'coords[0]' is the absolute stem position (lowest coordinate);
+   *   'coords[1]' is the length.
    *
    *   The length can be negative, in which case it must be either -20 or
-   *   -21.  It is interpreted as a `ghost' stem, according to the Type 1
+   *   -21.  It is interpreted as a 'ghost' stem, according to the Type 1
    *   specification.
    *
-   *   If the length is -21 (corresponding to a bottom ghost stem), then
-   *   the real stem position is `coords[0]+coords[1]'.
+   *   If the length is -21 (corresponding to a bottom ghost stem), then the
+   *   real stem position is 'coords[0]+coords[1]'.
    *
    */
   typedef void
@@ -181,7 +181,7 @@ FT_BEGIN_HEADER
                            FT_Fixed*  coords );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T1_Hints_SetStem3Func
@@ -215,7 +215,7 @@ FT_BEGIN_HEADER
                             FT_Fixed*  coords );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T1_Hints_ResetFunc
@@ -238,7 +238,7 @@ FT_BEGIN_HEADER
                          FT_UInt   end_point );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T1_Hints_CloseFunc
@@ -267,7 +267,7 @@ FT_BEGIN_HEADER
                          FT_UInt   end_point );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T1_Hints_ApplyFunc
@@ -297,7 +297,7 @@ FT_BEGIN_HEADER
    *   On input, all points within the outline are in font coordinates. On
    *   output, they are in 1/64th of pixels.
    *
-   *   The scaling transformation is taken from the `globals' object which
+   *   The scaling transformation is taken from the 'globals' object which
    *   must correspond to the same font as the glyph.
    *
    */
@@ -308,7 +308,7 @@ FT_BEGIN_HEADER
                          FT_Render_Mode  hint_mode );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   T1_Hints_FuncsRec
@@ -360,7 +360,7 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   T2_Hints
@@ -373,16 +373,16 @@ FT_BEGIN_HEADER
    *   @T2_Hints_FuncsRec structure.  Recording glyph hints is normally
    *   achieved through the following scheme:
    *
-   *   - Open a new hint recording session by calling the `open' method.
+   *   - Open a new hint recording session by calling the 'open' method.
    *     This rewinds the recorder and prepare it for new input.
    *
    *   - For each hint found in the glyph charstring, call the corresponding
-   *     method (`stems', `hintmask', `counters').  Note that these
-   *     functions do not return an error code.
+   *     method ('stems', 'hintmask', 'counters').  Note that these functions
+   *     do not return an error code.
    *
-   *   - Close the recording session by calling the `close' method.  It
-   *     returns an error code if the hints were invalid or something
-   *     strange happened (e.g., memory shortage).
+   *   - Close the recording session by calling the 'close' method.  It
+   *     returns an error code if the hints were invalid or something strange
+   *     happened (e.g., memory shortage).
    *
    *   The hints accumulated in the object can later be used by the
    *   Postscript hinter.
@@ -391,7 +391,7 @@ FT_BEGIN_HEADER
   typedef struct T2_HintsRec_*  T2_Hints;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @type:
    *   T2_Hints_Funcs
@@ -404,7 +404,7 @@ FT_BEGIN_HEADER
   typedef const struct T2_Hints_FuncsRec_*  T2_Hints_Funcs;
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T2_Hints_OpenFunc
@@ -426,7 +426,7 @@ FT_BEGIN_HEADER
   (*T2_Hints_OpenFunc)( T2_Hints  hints );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T2_Hints_StemsFunc
@@ -434,7 +434,7 @@ FT_BEGIN_HEADER
    * @description:
    *   A method of the @T2_Hints class used to set the table of stems in
    *   either the vertical or horizontal dimension.  Equivalent to the
-   *   `hstem', `vstem', `hstemhm', and `vstemhm' Type 2 operators.
+   *   'hstem', 'vstem', 'hstemhm', and 'vstemhm' Type 2 operators.
    *
    * @input:
    *   hints ::
@@ -447,18 +447,18 @@ FT_BEGIN_HEADER
    *     The number of stems.
    *
    *   coords ::
-   *     An array of `count' (position,length) pairs in 16.16 format.
+   *     An array of 'count' (position,length) pairs in 16.16 format.
    *
    * @note:
    *   Use vertical coordinates (y) for horizontal stems (dim=0).  Use
    *   horizontal coordinates (x) for vertical stems (dim=1).
    *
-   *   There are `2*count' elements in the `coords' array.  Each even
-   *   element is an absolute position in font units, each odd element is a
-   *   length in font units.
+   *   There are '2*count' elements in the 'coords' array.  Each even element
+   *   is an absolute position in font units, each odd element is a length in
+   *   font units.
    *
-   *   A length can be negative, in which case it must be either -20 or
-   *   -21.  It is interpreted as a `ghost' stem, according to the Type 1
+   *   A length can be negative, in which case it must be either -20 or -21.
+   *   It is interpreted as a 'ghost' stem, according to the Type 1
    *   specification.
    *
    */
@@ -469,22 +469,22 @@ FT_BEGIN_HEADER
                          FT_Fixed*  coordinates );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T2_Hints_MaskFunc
    *
    * @description:
    *   A method of the @T2_Hints class used to set a given hintmask (this
-   *   corresponds to the `hintmask' Type 2 operator).
+   *   corresponds to the 'hintmask' Type 2 operator).
    *
    * @input:
    *   hints ::
    *     A handle to the Type 2 hints recorder.
    *
    *   end_point ::
-   *     The glyph index of the last point to which the previously defined
-   *     or activated hints apply.
+   *     The glyph index of the last point to which the previously defined or
+   *     activated hints apply.
    *
    *   bit_count ::
    *     The number of bits in the hint mask.
@@ -494,13 +494,13 @@ FT_BEGIN_HEADER
    *
    * @note:
    *   If the hintmask starts the charstring (before any glyph point
-   *   definition), the value of `end_point' should be 0.
+   *   definition), the value of `end_point` should be 0.
    *
-   *   `bit_count' is the number of meaningful bits in the `bytes' array; it
+   *   `bit_count` is the number of meaningful bits in the 'bytes' array; it
    *   must be equal to the total number of hints defined so far (i.e.,
    *   horizontal+verticals).
    *
-   *   The `bytes' array can come directly from the Type 2 charstring and
+   *   The 'bytes' array can come directly from the Type 2 charstring and
    *   respects the same format.
    *
    */
@@ -511,14 +511,14 @@ FT_BEGIN_HEADER
                         const FT_Byte*  bytes );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T2_Hints_CounterFunc
    *
    * @description:
-   *   A method of the @T2_Hints class used to set a given counter mask
-   *   (this corresponds to the `hintmask' Type 2 operator).
+   *   A method of the @T2_Hints class used to set a given counter mask (this
+   *   corresponds to the 'hintmask' Type 2 operator).
    *
    * @input:
    *   hints ::
@@ -536,13 +536,13 @@ FT_BEGIN_HEADER
    *
    * @note:
    *   If the hintmask starts the charstring (before any glyph point
-   *   definition), the value of `end_point' should be 0.
+   *   definition), the value of `end_point` should be 0.
    *
-   *   `bit_count' is the number of meaningful bits in the `bytes' array; it
+   *   `bit_count` is the number of meaningful bits in the 'bytes' array; it
    *   must be equal to the total number of hints defined so far (i.e.,
    *   horizontal+verticals).
    *
-   *    The `bytes' array can come directly from the Type 2 charstring and
+   *    The 'bytes' array can come directly from the Type 2 charstring and
    *    respects the same format.
    *
    */
@@ -552,7 +552,7 @@ FT_BEGIN_HEADER
                            const FT_Byte*  bytes );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T2_Hints_CloseFunc
@@ -581,15 +581,14 @@ FT_BEGIN_HEADER
                          FT_UInt   end_point );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @functype:
    *   T2_Hints_ApplyFunc
    *
    * @description:
    *   A method of the @T2_Hints class used to apply hints to the
-   *   corresponding glyph outline.  Must be called after the `close'
-   *   method.
+   *   corresponding glyph outline.  Must be called after the 'close' method.
    *
    * @input:
    *   hints ::
@@ -611,7 +610,7 @@ FT_BEGIN_HEADER
    *   On input, all points within the outline are in font coordinates. On
    *   output, they are in 1/64th of pixels.
    *
-   *   The scaling transformation is taken from the `globals' object which
+   *   The scaling transformation is taken from the 'globals' object which
    *   must correspond to the same font than the glyph.
    *
    */
@@ -622,7 +621,7 @@ FT_BEGIN_HEADER
                          FT_Render_Mode  hint_mode );
 
 
-  /*************************************************************************
+  /**************************************************************************
    *
    * @struct:
    *   T2_Hints_FuncsRec
@@ -680,8 +679,6 @@ FT_BEGIN_HEADER
   typedef PSHinter_Interface*  PSHinter_Service;
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_PSHINTER_INTERFACE(        \
           class_,                            \
           get_globals_funcs_,                \
@@ -694,25 +691,6 @@ FT_BEGIN_HEADER
     get_t2_funcs_                            \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_PSHINTER_INTERFACE(                      \
-          class_,                                          \
-          get_globals_funcs_,                              \
-          get_t1_funcs_,                                   \
-          get_t2_funcs_ )                                  \
-  void                                                     \
-  FT_Init_Class_ ## class_( FT_Library           library,  \
-                            PSHinter_Interface*  clazz )   \
-  {                                                        \
-    FT_UNUSED( library );                                  \
-                                                           \
-    clazz->get_globals_funcs = get_globals_funcs_;         \
-    clazz->get_t1_funcs      = get_t1_funcs_;              \
-    clazz->get_t2_funcs      = get_t2_funcs_;              \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
 
 FT_END_HEADER
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svbdf.h b/thirdparty/freetype/include/freetype/internal/services/svbdf.h
index 4a9ec20075..e4786ed038 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svbdf.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svbdf.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svbdf.h                                                                */
-/*                                                                         */
-/*    The FreeType BDF services (specification).                           */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svbdf.h
+ *
+ *   The FreeType BDF services (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVBDF_H_
@@ -46,8 +46,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_BDFRec( class_,                                \
                                   get_charset_id_,                       \
                                   get_property_ )                        \
@@ -56,20 +54,6 @@ FT_BEGIN_HEADER
     get_charset_id_, get_property_                                       \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_BDFRec( class_,                                \
-                                  get_charset_id_,                       \
-                                  get_property_ )                        \
-  void                                                                   \
-  FT_Init_Class_ ## class_( FT_Service_BDFRec*  clazz )                  \
-  {                                                                      \
-    clazz->get_charset_id = get_charset_id_;                             \
-    clazz->get_property   = get_property_;                               \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svcfftl.h b/thirdparty/freetype/include/freetype/internal/services/svcfftl.h
index db623e6840..6c621732da 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svcfftl.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svcfftl.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svcfftl.h                                                              */
-/*                                                                         */
-/*    The FreeType CFF tables loader service (specification).              */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svcfftl.h
+ *
+ *   The FreeType CFF tables loader service (specification).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVCFFTL_H_
@@ -65,8 +65,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_CFFLOADREC( class_,                  \
                                       get_standard_encoding_,  \
                                       load_private_dict_,      \
@@ -82,26 +80,6 @@ FT_BEGIN_HEADER
     blend_build_vector_                                        \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_CFFLOADREC( class_,                  \
-                                      get_standard_encoding_,  \
-                                      load_private_dict_,      \
-                                      fd_select_get_,          \
-                                      blend_check_vector_,     \
-                                      blend_build_vector_ )    \
-  void                                                         \
-  FT_Init_Class_ ## class_( FT_Service_CFFLoadRec*  clazz )    \
-  {                                                            \
-    clazz->get_standard_encoding = get_standard_encoding_;     \
-    clazz->load_private_dict     = load_private_dict_;         \
-    clazz->fd_select_get         = fd_select_get_;             \
-    clazz->blend_check_vector    = blend_check_vector_;        \
-    clazz->blend_build_vector    = blend_build_vector_;        \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
 
 FT_END_HEADER
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svcid.h b/thirdparty/freetype/include/freetype/internal/services/svcid.h
index cb59ac6a29..555a5af5b9 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svcid.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svcid.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svcid.h                                                                */
-/*                                                                         */
-/*    The FreeType CID font services (specification).                      */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  Derek Clegg and Michael Toftdal.                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svcid.h
+ *
+ *   The FreeType CID font services (specification).
+ *
+ * Copyright (C) 2007-2019 by
+ * Derek Clegg and Michael Toftdal.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVCID_H_
@@ -48,8 +48,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_CIDREC( class_,                                   \
                                   get_ros_,                                 \
                                   get_is_cid_,                              \
@@ -59,25 +57,6 @@ FT_BEGIN_HEADER
     get_ros_, get_is_cid_, get_cid_from_glyph_index_                        \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_CIDREC( class_,                                   \
-                                  get_ros_,                                 \
-                                  get_is_cid_,                              \
-                                  get_cid_from_glyph_index_ )               \
-  void                                                                      \
-  FT_Init_Class_ ## class_( FT_Library          library,                    \
-                            FT_Service_CIDRec*  clazz )                     \
-  {                                                                         \
-    FT_UNUSED( library );                                                   \
-                                                                            \
-    clazz->get_ros                  = get_ros_;                             \
-    clazz->get_is_cid               = get_is_cid_;                          \
-    clazz->get_cid_from_glyph_index = get_cid_from_glyph_index_;            \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h b/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h
index 3b732be1a1..6f4285ea8c 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svfntfmt.h                                                             */
-/*                                                                         */
-/*    The FreeType font format service (specification only).               */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svfntfmt.h
+ *
+ *   The FreeType font format service (specification only).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVFNTFMT_H_
@@ -26,9 +26,9 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A trivial service used to return the name of a face's font driver,
-   *  according to the XFree86 nomenclature.  Note that the service data
-   *  is a simple constant string pointer.
+   * A trivial service used to return the name of a face's font driver,
+   * according to the XFree86 nomenclature.  Note that the service data is a
+   * simple constant string pointer.
    */
 
 #define FT_SERVICE_ID_FONT_FORMAT  "font-format"
diff --git a/thirdparty/freetype/include/freetype/internal/services/svgldict.h b/thirdparty/freetype/include/freetype/internal/services/svgldict.h
index f1a68e3110..ca8edf0eb5 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svgldict.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svgldict.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svgldict.h                                                             */
-/*                                                                         */
-/*    The FreeType glyph dictionary services (specification).              */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svgldict.h
+ *
+ *   The FreeType glyph dictionary services (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVGLDICT_H_
@@ -26,8 +26,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A service used to retrieve glyph names, as well as to find the
-   *  index of a given glyph name in a font.
+   * A service used to retrieve glyph names, as well as to find the index of
+   * a given glyph name in a font.
    *
    */
 
@@ -52,8 +52,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_GLYPHDICTREC( class_,                        \
                                         get_name_,                     \
                                         name_index_ )                  \
@@ -62,23 +60,6 @@ FT_BEGIN_HEADER
     get_name_, name_index_                                             \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_GLYPHDICTREC( class_,                        \
-                                        get_name_,                     \
-                                        name_index_ )                  \
-  void                                                                 \
-  FT_Init_Class_ ## class_( FT_Library                library,         \
-                            FT_Service_GlyphDictRec*  clazz )          \
-  {                                                                    \
-    FT_UNUSED( library );                                              \
-                                                                       \
-    clazz->get_name   = get_name_;                                     \
-    clazz->name_index = name_index_;                                   \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svgxval.h b/thirdparty/freetype/include/freetype/internal/services/svgxval.h
index ed79ebeaa8..0bb76f3144 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svgxval.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svgxval.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svgxval.h                                                              */
-/*                                                                         */
-/*    FreeType API for validating TrueTypeGX/AAT tables (specification).   */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Masatake YAMATO, Red Hat K.K.,                                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svgxval.h
+ *
+ *   FreeType API for validating TrueTypeGX/AAT tables (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef SVGXVAL_H_
diff --git a/thirdparty/freetype/include/freetype/internal/services/svkern.h b/thirdparty/freetype/include/freetype/internal/services/svkern.h
index c7e8f6ef27..f992a327c1 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svkern.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svkern.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svkern.h                                                               */
-/*                                                                         */
-/*    The FreeType Kerning service (specification).                        */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svkern.h
+ *
+ *   The FreeType Kerning service (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVKERN_H_
diff --git a/thirdparty/freetype/include/freetype/internal/services/svmetric.h b/thirdparty/freetype/include/freetype/internal/services/svmetric.h
index abaacddbbe..d688bc7c60 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svmetric.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svmetric.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svmetric.h                                                             */
-/*                                                                         */
-/*    The FreeType services for metrics variations (specification).        */
-/*                                                                         */
-/*  Copyright 2016-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svmetric.h
+ *
+ *   The FreeType services for metrics variations (specification).
+ *
+ * Copyright (C) 2016-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVMETRIC_H_
@@ -26,7 +26,7 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A service to manage the `HVAR, `MVAR', and `VVAR' OpenType tables.
+   * A service to manage the `HVAR, `MVAR', and `VVAR' OpenType tables.
    *
    */
 
@@ -93,8 +93,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_METRICSVARIATIONSREC( class_,            \
                                                 hadvance_adjust_,  \
                                                 lsb_adjust_,       \
@@ -116,32 +114,6 @@ FT_BEGIN_HEADER
     metrics_adjust_                                                \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_METRICSVARIATIONSREC( class_,               \
-                                                hadvance_adjust_,     \
-                                                lsb_adjust_,          \
-                                                rsb_adjust_,          \
-                                                vadvance_adjust_,     \
-                                                tsb_adjust_,          \
-                                                bsb_adjust_,          \
-                                                vorg_adjust_,         \
-                                                metrics_adjust_  )    \
-  void                                                                \
-  FT_Init_Class_ ## class_( FT_Service_MetricsVariationsRec*  clazz ) \
-  {                                                                   \
-    clazz->hadvance_adjust = hadvance_adjust_;                        \
-    clazz->lsb_adjust      = lsb_adjust_;                             \
-    clazz->rsb_adjust      = rsb_adjust_;                             \
-    clazz->vadvance_adjust = vadvance_adjust_;                        \
-    clazz->tsb_adjust      = tsb_adjust_;                             \
-    clazz->bsb_adjust      = bsb_adjust_;                             \
-    clazz->vorg_adjust     = vorg_adjust_;                            \
-    clazz->metrics_adjust  = metrics_adjust_;                         \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svmm.h b/thirdparty/freetype/include/freetype/internal/services/svmm.h
index bcbb38e2ce..3652f2050a 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svmm.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svmm.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svmm.h                                                                 */
-/*                                                                         */
-/*    The FreeType Multiple Masters and GX var services (specification).   */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svmm.h
+ *
+ *   The FreeType Multiple Masters and GX var services (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVMM_H_
@@ -26,9 +26,9 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A service used to manage multiple-masters data in a given face.
+   * A service used to manage multiple-masters data in a given face.
    *
-   *  See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H).
+   * See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H).
    *
    */
 
@@ -86,81 +86,65 @@ FT_BEGIN_HEADER
   typedef void
   (*FT_Done_Blend_Func)( FT_Face );
 
+  typedef FT_Error
+  (*FT_Set_MM_WeightVector_Func)( FT_Face    face,
+                                  FT_UInt    len,
+                                  FT_Fixed*  weight_vector );
+
+  typedef FT_Error
+  (*FT_Get_MM_WeightVector_Func)( FT_Face    face,
+                                  FT_UInt*   len,
+                                  FT_Fixed*  weight_vector );
+
 
   FT_DEFINE_SERVICE( MultiMasters )
   {
-    FT_Get_MM_Func          get_mm;
-    FT_Set_MM_Design_Func   set_mm_design;
-    FT_Set_MM_Blend_Func    set_mm_blend;
-    FT_Get_MM_Blend_Func    get_mm_blend;
-    FT_Get_MM_Var_Func      get_mm_var;
-    FT_Set_Var_Design_Func  set_var_design;
-    FT_Get_Var_Design_Func  get_var_design;
-    FT_Set_Instance_Func    set_instance;
+    FT_Get_MM_Func               get_mm;
+    FT_Set_MM_Design_Func        set_mm_design;
+    FT_Set_MM_Blend_Func         set_mm_blend;
+    FT_Get_MM_Blend_Func         get_mm_blend;
+    FT_Get_MM_Var_Func           get_mm_var;
+    FT_Set_Var_Design_Func       set_var_design;
+    FT_Get_Var_Design_Func       get_var_design;
+    FT_Set_Instance_Func         set_instance;
+    FT_Set_MM_WeightVector_Func  set_mm_weightvector;
+    FT_Get_MM_WeightVector_Func  get_mm_weightvector;
 
     /* for internal use; only needed for code sharing between modules */
-    FT_Get_Var_Blend_Func   get_var_blend;
-    FT_Done_Blend_Func      done_blend;
+    FT_Get_Var_Blend_Func  get_var_blend;
+    FT_Done_Blend_Func     done_blend;
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_,          \
-                                           get_mm_,         \
-                                           set_mm_design_,  \
-                                           set_mm_blend_,   \
-                                           get_mm_blend_,   \
-                                           get_mm_var_,     \
-                                           set_var_design_, \
-                                           get_var_design_, \
-                                           set_instance_,   \
-                                           get_var_blend_,  \
-                                           done_blend_ )    \
-  static const FT_Service_MultiMastersRec  class_ =         \
-  {                                                         \
-    get_mm_,                                                \
-    set_mm_design_,                                         \
-    set_mm_blend_,                                          \
-    get_mm_blend_,                                          \
-    get_mm_var_,                                            \
-    set_var_design_,                                        \
-    get_var_design_,                                        \
-    set_instance_,                                          \
-    get_var_blend_,                                         \
-    done_blend_                                             \
+#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_,            \
+                                           get_mm_,           \
+                                           set_mm_design_,    \
+                                           set_mm_blend_,     \
+                                           get_mm_blend_,     \
+                                           get_mm_var_,       \
+                                           set_var_design_,   \
+                                           get_var_design_,   \
+                                           set_instance_,     \
+                                           set_weightvector_, \
+                                           get_weightvector_, \
+                                           get_var_blend_,    \
+                                           done_blend_ )      \
+  static const FT_Service_MultiMastersRec  class_ =           \
+  {                                                           \
+    get_mm_,                                                  \
+    set_mm_design_,                                           \
+    set_mm_blend_,                                            \
+    get_mm_blend_,                                            \
+    get_mm_var_,                                              \
+    set_var_design_,                                          \
+    get_var_design_,                                          \
+    set_instance_,                                            \
+    set_weightvector_,                                        \
+    get_weightvector_,                                        \
+    get_var_blend_,                                           \
+    done_blend_                                               \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_,               \
-                                           get_mm_,              \
-                                           set_mm_design_,       \
-                                           set_mm_blend_,        \
-                                           get_mm_blend_,        \
-                                           get_mm_var_,          \
-                                           set_var_design_,      \
-                                           get_var_design_,      \
-                                           set_instance_,        \
-                                           get_var_blend_,       \
-                                           done_blend_ )         \
-  void                                                           \
-  FT_Init_Class_ ## class_( FT_Service_MultiMastersRec*  clazz ) \
-  {                                                              \
-    clazz->get_mm         = get_mm_;                             \
-    clazz->set_mm_design  = set_mm_design_;                      \
-    clazz->set_mm_blend   = set_mm_blend_;                       \
-    clazz->get_mm_blend   = get_mm_blend_;                       \
-    clazz->get_mm_var     = get_mm_var_;                         \
-    clazz->set_var_design = set_var_design_;                     \
-    clazz->get_var_design = get_var_design_;                     \
-    clazz->set_instance   = set_instance_;                       \
-    clazz->get_var_blend  = get_var_blend_;                      \
-    clazz->done_blend     = done_blend_;                         \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svotval.h b/thirdparty/freetype/include/freetype/internal/services/svotval.h
index 31294296a6..cab4c6efbb 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svotval.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svotval.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svotval.h                                                              */
-/*                                                                         */
-/*    The FreeType OpenType validation service (specification).            */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svotval.h
+ *
+ *   The FreeType OpenType validation service (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVOTVAL_H_
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpfr.h b/thirdparty/freetype/include/freetype/internal/services/svpfr.h
index e65d57e91b..fd01d614dd 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpfr.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpfr.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svpfr.h                                                                */
-/*                                                                         */
-/*    Internal PFR service functions (specification).                      */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svpfr.h
+ *
+ *   Internal PFR service functions (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVPFR_H_
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpostnm.h b/thirdparty/freetype/include/freetype/internal/services/svpostnm.h
index 4a49d8b053..18e3843cbe 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpostnm.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpostnm.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svpostnm.h                                                             */
-/*                                                                         */
-/*    The FreeType PostScript name services (specification).               */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svpostnm.h
+ *
+ *   The FreeType PostScript name services (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVPOSTNM_H_
@@ -25,13 +25,13 @@
 FT_BEGIN_HEADER
 
   /*
-   *  A trivial service used to retrieve the PostScript name of a given
-   *  font when available.  The `get_name' field should never be NULL.
+   * A trivial service used to retrieve the PostScript name of a given font
+   * when available.  The `get_name' field should never be `NULL`.
    *
-   *  The corresponding function can return NULL to indicate that the
-   *  PostScript name is not available.
+   * The corresponding function can return `NULL` to indicate that the
+   * PostScript name is not available.
    *
-   *  The name is owned by the face and will be destroyed with it.
+   * The name is owned by the face and will be destroyed with it.
    */
 
 #define FT_SERVICE_ID_POSTSCRIPT_FONT_NAME  "postscript-font-name"
@@ -47,28 +47,12 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_PSFONTNAMEREC( class_, get_ps_font_name_ ) \
   static const FT_Service_PsFontNameRec  class_ =                    \
   {                                                                  \
     get_ps_font_name_                                                \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_PSFONTNAMEREC( class_, get_ps_font_name_ ) \
-  void                                                               \
-  FT_Init_Class_ ## class_( FT_Library                 library,      \
-                            FT_Service_PsFontNameRec*  clazz )       \
-  {                                                                  \
-    FT_UNUSED( library );                                            \
-                                                                     \
-    clazz->get_ps_font_name = get_ps_font_name_;                     \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svprop.h b/thirdparty/freetype/include/freetype/internal/services/svprop.h
index adc0bcf439..e48d0151ec 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svprop.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svprop.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svprop.h                                                               */
-/*                                                                         */
-/*    The FreeType property service (specification).                       */
-/*                                                                         */
-/*  Copyright 2012-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svprop.h
+ *
+ *   The FreeType property service (specification).
+ *
+ * Copyright (C) 2012-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVPROP_H_
@@ -45,8 +45,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_PROPERTIESREC( class_,          \
                                          set_property_,   \
                                          get_property_ )  \
@@ -56,20 +54,6 @@ FT_BEGIN_HEADER
     get_property_                                         \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_PROPERTIESREC( class_,                \
-                                         set_property_,         \
-                                         get_property_ )        \
-  void                                                          \
-  FT_Init_Class_ ## class_( FT_Service_PropertiesRec*  clazz )  \
-  {                                                             \
-    clazz->set_property = set_property_;                        \
-    clazz->get_property = get_property_;                        \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpscmap.h b/thirdparty/freetype/include/freetype/internal/services/svpscmap.h
index 5589575b92..dfac3bafa9 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpscmap.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpscmap.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svpscmap.h                                                             */
-/*                                                                         */
-/*    The FreeType PostScript charmap service (specification).             */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svpscmap.h
+ *
+ *   The FreeType PostScript charmap service (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVPSCMAP_H_
@@ -29,27 +29,26 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  Adobe glyph name to unicode value.
+   * Adobe glyph name to unicode value.
    */
   typedef FT_UInt32
   (*PS_Unicode_ValueFunc)( const char*  glyph_name );
 
   /*
-   *  Macintosh name id to glyph name.  NULL if invalid index.
+   * Macintosh name id to glyph name.  `NULL` if invalid index.
    */
   typedef const char*
   (*PS_Macintosh_NameFunc)( FT_UInt  name_index );
 
   /*
-   *  Adobe standard string ID to glyph name.  NULL if invalid index.
+   * Adobe standard string ID to glyph name.  `NULL` if invalid index.
    */
   typedef const char*
   (*PS_Adobe_Std_StringsFunc)( FT_UInt  string_index );
 
 
   /*
-   *  Simple unicode -> glyph index charmap built from font glyph names
-   *  table.
+   * Simple unicode -> glyph index charmap built from font glyph names table.
    */
   typedef struct  PS_UniMap_
   {
@@ -71,16 +70,16 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  A function which returns a glyph name for a given index.  Returns
-   *  NULL if invalid index.
+   * A function which returns a glyph name for a given index.  Returns
+   * `NULL` if invalid index.
    */
   typedef const char*
   (*PS_GetGlyphNameFunc)( FT_Pointer  data,
                           FT_UInt     string_index );
 
   /*
-   *  A function used to release the glyph name returned by
-   *  PS_GetGlyphNameFunc, when needed
+   * A function used to release the glyph name returned by
+   * PS_GetGlyphNameFunc, when needed
    */
   typedef void
   (*PS_FreeGlyphNameFunc)( FT_Pointer  data,
@@ -118,8 +117,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_PSCMAPSREC( class_,                               \
                                       unicode_value_,                       \
                                       unicodes_init_,                       \
@@ -136,35 +133,6 @@ FT_BEGIN_HEADER
     adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_         \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_PSCMAPSREC( class_,                               \
-                                      unicode_value_,                       \
-                                      unicodes_init_,                       \
-                                      unicodes_char_index_,                 \
-                                      unicodes_char_next_,                  \
-                                      macintosh_name_,                      \
-                                      adobe_std_strings_,                   \
-                                      adobe_std_encoding_,                  \
-                                      adobe_expert_encoding_ )              \
-  void                                                                      \
-  FT_Init_Class_ ## class_( FT_Library              library,                \
-                            FT_Service_PsCMapsRec*  clazz )                 \
-  {                                                                         \
-    FT_UNUSED( library );                                                   \
-                                                                            \
-    clazz->unicode_value         = unicode_value_;                          \
-    clazz->unicodes_init         = unicodes_init_;                          \
-    clazz->unicodes_char_index   = unicodes_char_index_;                    \
-    clazz->unicodes_char_next    = unicodes_char_next_;                     \
-    clazz->macintosh_name        = macintosh_name_;                         \
-    clazz->adobe_std_strings     = adobe_std_strings_;                      \
-    clazz->adobe_std_encoding    = adobe_std_encoding_;                     \
-    clazz->adobe_expert_encoding = adobe_expert_encoding_;                  \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h b/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h
index 408f406dfa..fb4e0e3fa9 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svpsinfo.h                                                             */
-/*                                                                         */
-/*    The FreeType PostScript info service (specification).                */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svpsinfo.h
+ *
+ *   The FreeType PostScript info service (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVPSINFO_H_
@@ -62,8 +62,6 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_PSINFOREC( class_,                     \
                                      get_font_info_,             \
                                      ps_get_font_extra_,         \
@@ -76,29 +74,6 @@ FT_BEGIN_HEADER
     get_font_private_, get_font_value_                           \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_PSINFOREC( class_,                     \
-                                     get_font_info_,             \
-                                     ps_get_font_extra_,         \
-                                     has_glyph_names_,           \
-                                     get_font_private_,          \
-                                     get_font_value_ )           \
-  void                                                           \
-  FT_Init_Class_ ## class_( FT_Library             library,      \
-                            FT_Service_PsInfoRec*  clazz )       \
-  {                                                              \
-    FT_UNUSED( library );                                        \
-                                                                 \
-    clazz->ps_get_font_info    = get_font_info_;                 \
-    clazz->ps_get_font_extra   = ps_get_font_extra_;             \
-    clazz->ps_has_glyph_names  = has_glyph_names_;               \
-    clazz->ps_get_font_private = get_font_private_;              \
-    clazz->ps_get_font_value   = get_font_value_;                \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svsfnt.h b/thirdparty/freetype/include/freetype/internal/services/svsfnt.h
index e8b37bc47f..464aa209f7 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svsfnt.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svsfnt.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svsfnt.h                                                               */
-/*                                                                         */
-/*    The FreeType SFNT table loading service (specification).             */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svsfnt.h
+ *
+ *   The FreeType SFNT table loading service (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVSFNT_H_
@@ -27,7 +27,7 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  SFNT table loading service.
+   * SFNT table loading service.
    */
 
 #define FT_SERVICE_ID_SFNT_TABLE  "sfnt-table"
@@ -70,27 +70,12 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_SFNT_TABLEREC( class_, load_, get_, info_ )  \
   static const FT_Service_SFNT_TableRec  class_ =                      \
   {                                                                    \
     load_, get_, info_                                                 \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_SFNT_TABLEREC( class_, load_, get_, info_ ) \
-  void                                                                \
-  FT_Init_Class_ ## class_( FT_Service_SFNT_TableRec*  clazz )        \
-  {                                                                   \
-    clazz->load_table = load_;                                        \
-    clazz->get_table  = get_;                                         \
-    clazz->table_info = info_;                                        \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svttcmap.h b/thirdparty/freetype/include/freetype/internal/services/svttcmap.h
index cd0e6fda6f..0fcb81371d 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svttcmap.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svttcmap.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svttcmap.h                                                             */
-/*                                                                         */
-/*    The FreeType TrueType/sfnt cmap extra information service.           */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  Masatake YAMATO, Redhat K.K.,                                          */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svttcmap.h
+ *
+ *   The FreeType TrueType/sfnt cmap extra information service.
+ *
+ * Copyright (C) 2003-2019 by
+ * Masatake YAMATO, Redhat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 /* Development of this service is support of
    Information-technology Promotion Agency, Japan. */
@@ -32,29 +32,28 @@ FT_BEGIN_HEADER
 #define FT_SERVICE_ID_TT_CMAP  "tt-cmaps"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_CMapInfo                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to store TrueType/sfnt specific cmap information  */
-  /*    which is not covered by the generic @FT_CharMap structure.  This   */
-  /*    structure can be accessed with the @FT_Get_TT_CMap_Info function.  */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    language ::                                                        */
-  /*      The language ID used in Mac fonts.  Definitions of values are in */
-  /*      `ttnameid.h'.                                                    */
-  /*                                                                       */
-  /*    format ::                                                          */
-  /*      The cmap format.  OpenType 1.6 defines the formats 0 (byte       */
-  /*      encoding table), 2~(high-byte mapping through table), 4~(segment */
-  /*      mapping to delta values), 6~(trimmed table mapping), 8~(mixed    */
-  /*      16-bit and 32-bit coverage), 10~(trimmed array), 12~(segmented   */
-  /*      coverage), 13~(last resort font), and 14 (Unicode Variation      */
-  /*      Sequences).                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_CMapInfo
+   *
+   * @description:
+   *   A structure used to store TrueType/sfnt specific cmap information
+   *   which is not covered by the generic @FT_CharMap structure.  This
+   *   structure can be accessed with the @FT_Get_TT_CMap_Info function.
+   *
+   * @fields:
+   *   language ::
+   *     The language ID used in Mac fonts.  Definitions of values are in
+   *     `ttnameid.h`.
+   *
+   *   format ::
+   *     The cmap format.  OpenType 1.6 defines the formats 0 (byte encoding
+   *     table), 2~(high-byte mapping through table), 4~(segment mapping to
+   *     delta values), 6~(trimmed table mapping), 8~(mixed 16-bit and 32-bit
+   *     coverage), 10~(trimmed array), 12~(segmented coverage), 13~(last
+   *     resort font), and 14 (Unicode Variation Sequences).
+   */
   typedef struct  TT_CMapInfo_
   {
     FT_ULong  language;
@@ -73,7 +72,6 @@ FT_BEGIN_HEADER
     TT_CMap_Info_GetFunc  get_cmap_info;
   };
 
-#ifndef FT_CONFIG_OPTION_PIC
 
 #define FT_DEFINE_SERVICE_TTCMAPSREC( class_, get_cmap_info_ )  \
   static const FT_Service_TTCMapsRec  class_ =                  \
@@ -81,20 +79,6 @@ FT_BEGIN_HEADER
     get_cmap_info_                                              \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_TTCMAPSREC( class_, get_cmap_info_ )  \
-  void                                                          \
-  FT_Init_Class_ ## class_( FT_Library              library,    \
-                            FT_Service_TTCMapsRec*  clazz )     \
-  {                                                             \
-    FT_UNUSED( library );                                       \
-                                                                \
-    clazz->get_cmap_info = get_cmap_info_;                      \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svtteng.h b/thirdparty/freetype/include/freetype/internal/services/svtteng.h
index 92e3c541f5..a852f5c6fb 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svtteng.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svtteng.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svtteng.h                                                              */
-/*                                                                         */
-/*    The FreeType TrueType engine query service (specification).          */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svtteng.h
+ *
+ *   The FreeType TrueType engine query service (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVTTENG_H_
@@ -27,7 +27,7 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  SFNT table loading service.
+   * SFNT table loading service.
    */
 
 #define FT_SERVICE_ID_TRUETYPE_ENGINE  "truetype-engine"
diff --git a/thirdparty/freetype/include/freetype/internal/services/svttglyf.h b/thirdparty/freetype/include/freetype/internal/services/svttglyf.h
index 16fac1ca18..c8798771fb 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svttglyf.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svttglyf.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svttglyf.h                                                             */
-/*                                                                         */
-/*    The FreeType TrueType glyph service.                                 */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  David Turner.                                                          */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svttglyf.h
+ *
+ *   The FreeType TrueType glyph service.
+ *
+ * Copyright (C) 2007-2019 by
+ * David Turner.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #ifndef SVTTGLYF_H_
 #define SVTTGLYF_H_
@@ -39,25 +39,12 @@ FT_BEGIN_HEADER
   };
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_SERVICE_TTGLYFREC( class_, get_location_ )  \
   static const FT_Service_TTGlyfRec  class_ =                 \
   {                                                           \
     get_location_                                             \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_SERVICE_TTGLYFREC( class_, get_location_ )  \
-  void                                                        \
-  FT_Init_Class_ ## class_( FT_Service_TTGlyfRec*  clazz )    \
-  {                                                           \
-    clazz->get_location = get_location_;                      \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
   /* */
 
 
diff --git a/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h b/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h
index 80d481cbd1..38ee020965 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  svwinfnt.h                                                             */
-/*                                                                         */
-/*    The FreeType Windows FNT/FONT service (specification).               */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * svwinfnt.h
+ *
+ *   The FreeType Windows FNT/FONT service (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SVWINFNT_H_
diff --git a/thirdparty/freetype/include/freetype/internal/sfnt.h b/thirdparty/freetype/include/freetype/internal/sfnt.h
index fb1e327aeb..225f40df6e 100644
--- a/thirdparty/freetype/include/freetype/internal/sfnt.h
+++ b/thirdparty/freetype/include/freetype/internal/sfnt.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfnt.h                                                                 */
-/*                                                                         */
-/*    High-level `sfnt' driver interface (specification).                  */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * sfnt.h
+ *
+ *   High-level 'sfnt' driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SFNT_H_
@@ -28,43 +28,46 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Init_Face_Func                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    First part of the SFNT face object initialization.  This finds     */
-  /*    the face in a SFNT file or collection, and load its format tag in  */
-  /*    face->format_tag.                                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream     :: The input stream.                                    */
-  /*                                                                       */
-  /*    face       :: A handle to the target face object.                  */
-  /*                                                                       */
-  /*    face_index :: The index of the TrueType font, if we are opening a  */
-  /*                  collection, in bits 0-15.  The numbered instance     */
-  /*                  index~+~1 of a GX (sub)font, if applicable, in bits  */
-  /*                  16-30.                                               */
-  /*                                                                       */
-  /*    num_params :: The number of additional parameters.                 */
-  /*                                                                       */
-  /*    params     :: Optional additional parameters.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The stream cursor must be at the font file's origin.               */
-  /*                                                                       */
-  /*    This function recognizes fonts embedded in a `TrueType             */
-  /*    collection'.                                                       */
-  /*                                                                       */
-  /*    Once the format tag has been validated by the font driver, it      */
-  /*    should then call the TT_Load_Face_Func() callback to read the rest */
-  /*    of the SFNT tables in the object.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Init_Face_Func
+   *
+   * @description:
+   *   First part of the SFNT face object initialization.  This finds the
+   *   face in a SFNT file or collection, and load its format tag in
+   *   face->format_tag.
+   *
+   * @input:
+   *   stream ::
+   *     The input stream.
+   *
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   face_index ::
+   *     The index of the TrueType font, if we are opening a collection, in
+   *     bits 0-15.  The numbered instance index~+~1 of a GX (sub)font, if
+   *     applicable, in bits 16-30.
+   *
+   *   num_params ::
+   *     The number of additional parameters.
+   *
+   *   params ::
+   *     Optional additional parameters.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   The stream cursor must be at the font file's origin.
+   *
+   *   This function recognizes fonts embedded in a 'TrueType collection'.
+   *
+   *   Once the format tag has been validated by the font driver, it should
+   *   then call the TT_Load_Face_Func() callback to read the rest of the
+   *   SFNT tables in the object.
+   */
   typedef FT_Error
   (*TT_Init_Face_Func)( FT_Stream      stream,
                         TT_Face        face,
@@ -73,36 +76,40 @@ FT_BEGIN_HEADER
                         FT_Parameter*  params );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_Face_Func                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Second part of the SFNT face object initialization.  This loads    */
-  /*    the common SFNT tables (head, OS/2, maxp, metrics, etc.) in the    */
-  /*    face object.                                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream     :: The input stream.                                    */
-  /*                                                                       */
-  /*    face       :: A handle to the target face object.                  */
-  /*                                                                       */
-  /*    face_index :: The index of the TrueType font, if we are opening a  */
-  /*                  collection, in bits 0-15.  The numbered instance     */
-  /*                  index~+~1 of a GX (sub)font, if applicable, in bits  */
-  /*                  16-30.                                               */
-  /*                                                                       */
-  /*    num_params :: The number of additional parameters.                 */
-  /*                                                                       */
-  /*    params     :: Optional additional parameters.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function must be called after TT_Init_Face_Func().            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_Face_Func
+   *
+   * @description:
+   *   Second part of the SFNT face object initialization.  This loads the
+   *   common SFNT tables (head, OS/2, maxp, metrics, etc.) in the face
+   *   object.
+   *
+   * @input:
+   *   stream ::
+   *     The input stream.
+   *
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   face_index ::
+   *     The index of the TrueType font, if we are opening a collection, in
+   *     bits 0-15.  The numbered instance index~+~1 of a GX (sub)font, if
+   *     applicable, in bits 16-30.
+   *
+   *   num_params ::
+   *     The number of additional parameters.
+   *
+   *   params ::
+   *     Optional additional parameters.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   This function must be called after TT_Init_Face_Func().
+   */
   typedef FT_Error
   (*TT_Load_Face_Func)( FT_Stream      stream,
                         TT_Face        face,
@@ -111,64 +118,64 @@ FT_BEGIN_HEADER
                         FT_Parameter*  params );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Done_Face_Func                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A callback used to delete the common SFNT data from a face.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the target face object.                        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function does NOT destroy the face object.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Done_Face_Func
+   *
+   * @description:
+   *   A callback used to delete the common SFNT data from a face.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @note:
+   *   This function does NOT destroy the face object.
+   */
   typedef void
   (*TT_Done_Face_Func)( TT_Face  face );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_Any_Func                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load any font table into client memory.                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: The face object to look for.                             */
-  /*                                                                       */
-  /*    tag    :: The tag of table to load.  Use the value 0 if you want   */
-  /*              to access the whole font file, else set this parameter   */
-  /*              to a valid TrueType table tag that you can forge with    */
-  /*              the MAKE_TT_TAG macro.                                   */
-  /*                                                                       */
-  /*    offset :: The starting offset in the table (or the file if         */
-  /*              tag == 0).                                               */
-  /*                                                                       */
-  /*    length :: The address of the decision variable:                    */
-  /*                                                                       */
-  /*                If length == NULL:                                     */
-  /*                  Loads the whole table.  Returns an error if          */
-  /*                  `offset' == 0!                                       */
-  /*                                                                       */
-  /*                If *length == 0:                                       */
-  /*                  Exits immediately; returning the length of the given */
-  /*                  table or of the font file, depending on the value of */
-  /*                  `tag'.                                               */
-  /*                                                                       */
-  /*                If *length != 0:                                       */
-  /*                  Loads the next `length' bytes of table or font,      */
-  /*                  starting at offset `offset' (in table or font too).  */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    buffer :: The address of target buffer.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    TrueType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_Any_Func
+   *
+   * @description:
+   *   Load any font table into client memory.
+   *
+   * @input:
+   *   face ::
+   *     The face object to look for.
+   *
+   *   tag ::
+   *     The tag of table to load.  Use the value 0 if you want to access the
+   *     whole font file, else set this parameter to a valid TrueType table
+   *     tag that you can forge with the MAKE_TT_TAG macro.
+   *
+   *   offset ::
+   *     The starting offset in the table (or the file if tag == 0).
+   *
+   *   length ::
+   *     The address of the decision variable:
+   *
+   *     If `length == NULL`: Loads the whole table.  Returns an error if
+   *     'offset' == 0!
+   *
+   *     If `*length == 0`: Exits immediately; returning the length of the
+   *     given table or of the font file, depending on the value of 'tag'.
+   *
+   *     If `*length != 0`: Loads the next 'length' bytes of table or font,
+   *     starting at offset 'offset' (in table or font too).
+   *
+   * @output:
+   *   buffer ::
+   *     The address of target buffer.
+   *
+   * @return:
+   *   TrueType error code.  0 means success.
+   */
   typedef FT_Error
   (*TT_Load_Any_Func)( TT_Face    face,
                        FT_ULong   tag,
@@ -177,34 +184,39 @@ FT_BEGIN_HEADER
                        FT_ULong*  length );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Find_SBit_Image_Func                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Check whether an embedded bitmap (an `sbit') exists for a given    */
-  /*    glyph, at a given strike.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face          :: The target face object.                           */
-  /*                                                                       */
-  /*    glyph_index   :: The glyph index.                                  */
-  /*                                                                       */
-  /*    strike_index  :: The current strike index.                         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    arange        :: The SBit range containing the glyph index.        */
-  /*                                                                       */
-  /*    astrike       :: The SBit strike containing the glyph index.       */
-  /*                                                                       */
-  /*    aglyph_offset :: The offset of the glyph data in `EBDT' table.     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.  Returns                    */
-  /*    SFNT_Err_Invalid_Argument if no sbit exists for the requested      */
-  /*    glyph.                                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Find_SBit_Image_Func
+   *
+   * @description:
+   *   Check whether an embedded bitmap (an 'sbit') exists for a given glyph,
+   *   at a given strike.
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   glyph_index ::
+   *     The glyph index.
+   *
+   *   strike_index ::
+   *     The current strike index.
+   *
+   * @output:
+   *   arange ::
+   *     The SBit range containing the glyph index.
+   *
+   *   astrike ::
+   *     The SBit strike containing the glyph index.
+   *
+   *   aglyph_offset ::
+   *     The offset of the glyph data in 'EBDT' table.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.  Returns
+   *   SFNT_Err_Invalid_Argument if no sbit exists for the requested glyph.
+   */
   typedef FT_Error
   (*TT_Find_SBit_Image_Func)( TT_Face          face,
                               FT_UInt          glyph_index,
@@ -214,78 +226,81 @@ FT_BEGIN_HEADER
                               FT_ULong        *aglyph_offset );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_SBit_Metrics_Func                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the big metrics for a given embedded bitmap.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream      :: The input stream.                                   */
-  /*                                                                       */
-  /*    range       :: The SBit range containing the glyph.                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    big_metrics :: A big SBit metrics structure for the glyph.         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The stream cursor must be positioned at the glyph's offset within  */
-  /*    the `EBDT' table before the call.                                  */
-  /*                                                                       */
-  /*    If the image format uses variable metrics, the stream cursor is    */
-  /*    positioned just after the metrics header in the `EBDT' table on    */
-  /*    function exit.                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_SBit_Metrics_Func
+   *
+   * @description:
+   *   Get the big metrics for a given embedded bitmap.
+   *
+   * @input:
+   *   stream ::
+   *     The input stream.
+   *
+   *   range ::
+   *     The SBit range containing the glyph.
+   *
+   * @output:
+   *   big_metrics ::
+   *     A big SBit metrics structure for the glyph.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   The stream cursor must be positioned at the glyph's offset within the
+   *   'EBDT' table before the call.
+   *
+   *   If the image format uses variable metrics, the stream cursor is
+   *   positioned just after the metrics header in the 'EBDT' table on
+   *   function exit.
+   */
   typedef FT_Error
   (*TT_Load_SBit_Metrics_Func)( FT_Stream        stream,
                                 TT_SBit_Range    range,
                                 TT_SBit_Metrics  metrics );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_SBit_Image_Func                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load a given glyph sbit image from the font resource.  This also   */
-  /*    returns its metrics.                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face ::                                                            */
-  /*      The target face object.                                          */
-  /*                                                                       */
-  /*    strike_index ::                                                    */
-  /*      The strike index.                                                */
-  /*                                                                       */
-  /*    glyph_index ::                                                     */
-  /*      The current glyph index.                                         */
-  /*                                                                       */
-  /*    load_flags ::                                                      */
-  /*      The current load flags.                                          */
-  /*                                                                       */
-  /*    stream ::                                                          */
-  /*      The input stream.                                                */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    amap ::                                                            */
-  /*      The target pixmap.                                               */
-  /*                                                                       */
-  /*    ametrics ::                                                        */
-  /*      A big sbit metrics structure for the glyph image.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.  Returns an error if no     */
-  /*    glyph sbit exists for the index.                                   */
-  /*                                                                       */
-  /*  <Note>                                                               */
-  /*    The `map.buffer' field is always freed before the glyph is loaded. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_SBit_Image_Func
+   *
+   * @description:
+   *   Load a given glyph sbit image from the font resource.  This also
+   *   returns its metrics.
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   strike_index ::
+   *     The strike index.
+   *
+   *   glyph_index ::
+   *     The current glyph index.
+   *
+   *   load_flags ::
+   *     The current load flags.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @output:
+   *   amap ::
+   *     The target pixmap.
+   *
+   *   ametrics ::
+   *     A big sbit metrics structure for the glyph image.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.  Returns an error if no glyph
+   *   sbit exists for the index.
+   *
+   * @note:
+   *   The `map.buffer` field is always freed before the glyph is loaded.
+   */
   typedef FT_Error
   (*TT_Load_SBit_Image_Func)( TT_Face              face,
                               FT_ULong             strike_index,
@@ -296,130 +311,144 @@ FT_BEGIN_HEADER
                               TT_SBit_MetricsRec  *ametrics );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Set_SBit_Strike_Func                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Select an sbit strike for a given size request.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face          :: The target face object.                           */
-  /*                                                                       */
-  /*    req           :: The size request.                                 */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    astrike_index :: The index of the sbit strike.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.  Returns an error if no     */
-  /*    sbit strike exists for the selected ppem values.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Set_SBit_Strike_Func
+   *
+   * @description:
+   *   Select an sbit strike for a given size request.
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   req ::
+   *     The size request.
+   *
+   * @output:
+   *   astrike_index ::
+   *     The index of the sbit strike.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.  Returns an error if no sbit
+   *   strike exists for the selected ppem values.
+   */
   typedef FT_Error
   (*TT_Set_SBit_Strike_Func)( TT_Face          face,
                               FT_Size_Request  req,
                               FT_ULong*        astrike_index );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_Strike_Metrics_Func                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the metrics of a given strike.                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face          :: The target face object.                           */
-  /*                                                                       */
-  /*    strike_index  :: The strike index.                                 */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    metrics       :: the metrics of the strike.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.  Returns an error if no     */
-  /*    such sbit strike exists.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_Strike_Metrics_Func
+   *
+   * @description:
+   *   Load the metrics of a given strike.
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   strike_index ::
+   *     The strike index.
+   *
+   * @output:
+   *   metrics ::
+   *     the metrics of the strike.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.  Returns an error if no such
+   *   sbit strike exists.
+   */
   typedef FT_Error
   (*TT_Load_Strike_Metrics_Func)( TT_Face           face,
                                   FT_ULong          strike_index,
                                   FT_Size_Metrics*  metrics );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Get_PS_Name_Func                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the PostScript glyph name of a glyph.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    idx  :: The glyph index.                                           */
-  /*                                                                       */
-  /*    PSname :: The address of a string pointer.  Will be NULL in case   */
-  /*              of error, otherwise it is a pointer to the glyph name.   */
-  /*                                                                       */
-  /*              You must not modify the returned string!                 */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Get_PS_Name_Func
+   *
+   * @description:
+   *   Get the PostScript glyph name of a glyph.
+   *
+   * @input:
+   *   idx ::
+   *     The glyph index.
+   *
+   *   PSname ::
+   *     The address of a string pointer.  Will be `NULL` in case of error,
+   *     otherwise it is a pointer to the glyph name.
+   *
+   *     You must not modify the returned string!
+   *
+   * @output:
+   *   FreeType error code.  0 means success.
+   */
   typedef FT_Error
   (*TT_Get_PS_Name_Func)( TT_Face      face,
                           FT_UInt      idx,
                           FT_String**  PSname );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_Metrics_Func                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load a metrics table, which is a table with a horizontal and a     */
-  /*    vertical version.                                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the target face object.                    */
-  /*                                                                       */
-  /*    stream   :: The input stream.                                      */
-  /*                                                                       */
-  /*    vertical :: A boolean flag.  If set, load the vertical one.        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_Metrics_Func
+   *
+   * @description:
+   *   Load a metrics table, which is a table with a horizontal and a
+   *   vertical version.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   *   vertical ::
+   *     A boolean flag.  If set, load the vertical one.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   */
   typedef FT_Error
   (*TT_Load_Metrics_Func)( TT_Face    face,
                            FT_Stream  stream,
                            FT_Bool    vertical );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Get_Metrics_Func                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the horizontal or vertical header in a face object.           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the target face object.                    */
-  /*                                                                       */
-  /*    vertical :: A boolean flag.  If set, load vertical metrics.        */
-  /*                                                                       */
-  /*    gindex   :: The glyph index.                                       */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    abearing :: The horizontal (or vertical) bearing.  Set to zero in  */
-  /*                case of error.                                         */
-  /*                                                                       */
-  /*    aadvance :: The horizontal (or vertical) advance.  Set to zero in  */
-  /*                case of error.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Get_Metrics_Func
+   *
+   * @description:
+   *   Load the horizontal or vertical header in a face object.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   vertical ::
+   *     A boolean flag.  If set, load vertical metrics.
+   *
+   *   gindex ::
+   *     The glyph index.
+   *
+   * @output:
+   *   abearing ::
+   *     The horizontal (or vertical) bearing.  Set to zero in case of error.
+   *
+   *   aadvance ::
+   *     The horizontal (or vertical) advance.  Set to zero in case of error.
+   */
   typedef void
   (*TT_Get_Metrics_Func)( TT_Face     face,
                           FT_Bool     vertical,
@@ -428,57 +457,168 @@ FT_BEGIN_HEADER
                           FT_UShort*  aadvance );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Get_Name_Func                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    From the `name' table, return a given ENGLISH name record in       */
-  /*    ASCII.                                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the source face object.                    */
-  /*                                                                       */
-  /*    nameid   :: The name id of the name record to return.              */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    name     :: The address of an allocated string pointer.  NULL if   */
-  /*                no name is present.                                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Set_Palette_Func
+   *
+   * @description:
+   *   Load the colors into `face->palette` for a given palette index.
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   idx ::
+   *     The palette index.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   */
+  typedef FT_Error
+  (*TT_Set_Palette_Func)( TT_Face  face,
+                          FT_UInt  idx );
+
+
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Get_Colr_Layer_Func
+   *
+   * @description:
+   *   Iteratively get the color layer data of a given glyph index.
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   base_glyph ::
+   *     The glyph index the colored glyph layers are associated with.
+   *
+   * @inout:
+   *   iterator ::
+   *     An @FT_LayerIterator object.  For the first call you should set
+   *     `iterator->p` to `NULL`.  For all following calls, simply use the
+   *     same object again.
+   *
+   * @output:
+   *   aglyph_index ::
+   *     The glyph index of the current layer.
+   *
+   *   acolor_index ::
+   *     The color index into the font face's color palette of the current
+   *     layer.  The value 0xFFFF is special; it doesn't reference a palette
+   *     entry but indicates that the text foreground color should be used
+   *     instead (to be set up by the application outside of FreeType).
+   *
+   * @return:
+   *   Value~1 if everything is OK.  If there are no more layers (or if there
+   *   are no layers at all), value~0 gets returned.  In case of an error,
+   *   value~0 is returned also.
+   */
+  typedef FT_Bool
+  (*TT_Get_Colr_Layer_Func)( TT_Face            face,
+                             FT_UInt            base_glyph,
+                             FT_UInt           *aglyph_index,
+                             FT_UInt           *acolor_index,
+                             FT_LayerIterator*  iterator );
+
+
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Blend_Colr_Func
+   *
+   * @description:
+   *   Blend the bitmap in `new_glyph` into `base_glyph` using the color
+   *   specified by `color_index`.  If `color_index` is 0xFFFF, use
+   *   `face->foreground_color` if `face->have_foreground_color` is set.
+   *   Otherwise check `face->palette_data.palette_flags`: If present and
+   *   @FT_PALETTE_FOR_DARK_BACKGROUND is set, use BGRA value 0xFFFFFFFF
+   *   (white opaque).  Otherwise use BGRA value 0x000000FF (black opaque).
+   *
+   * @input:
+   *   face ::
+   *     The target face object.
+   *
+   *   color_index ::
+   *     Color index from the COLR table.
+   *
+   *   base_glyph ::
+   *     Slot for bitmap to be merged into.  The underlying bitmap may get
+   *     reallocated.
+   *
+   *   new_glyph ::
+   *     Slot to be incooperated into `base_glyph`.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.  Returns an error if
+   *   color_index is invalid or reallocation fails.
+   */
+  typedef FT_Error
+  (*TT_Blend_Colr_Func)( TT_Face       face,
+                         FT_UInt       color_index,
+                         FT_GlyphSlot  base_glyph,
+                         FT_GlyphSlot  new_glyph );
+
+
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Get_Name_Func
+   *
+   * @description:
+   *   From the 'name' table, return a given ENGLISH name record in ASCII.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   nameid ::
+   *     The name id of the name record to return.
+   *
+   * @inout:
+   *   name ::
+   *     The address of an allocated string pointer.  `NULL` if no name is
+   *     present.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   */
   typedef FT_Error
   (*TT_Get_Name_Func)( TT_Face      face,
                        FT_UShort    nameid,
                        FT_String**  name );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Get_Name_ID_Func                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Search whether an ENGLISH version for a given name ID is in the    */
-  /*    `name' table.                                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the source face object.                    */
-  /*                                                                       */
-  /*    nameid   :: The name id of the name record to return.              */
-  /*                                                                       */
-  /* <Out>                                                                 */
-  /*    win      :: If non-negative, an index into the `name' table with   */
-  /*                the corresponding (3,1) or (3,0) Windows entry.        */
-  /*                                                                       */
-  /*    apple    :: If non-negative, an index into the `name' table with   */
-  /*                the corresponding (1,0) Apple entry.                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    1 if there is either a win or apple entry (or both), 0 otheriwse.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Get_Name_ID_Func
+   *
+   * @description:
+   *   Search whether an ENGLISH version for a given name ID is in the 'name'
+   *   table.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   nameid ::
+   *     The name id of the name record to return.
+   *
+   * @output:
+   *   win ::
+   *     If non-negative, an index into the 'name' table with the
+   *     corresponding (3,1) or (3,0) Windows entry.
+   *
+   *   apple ::
+   *     If non-negative, an index into the 'name' table with the
+   *     corresponding (1,0) Apple entry.
+   *
+   * @return:
+   *   1 if there is either a win or apple entry (or both), 0 otheriwse.
+   */
   typedef FT_Bool
   (*TT_Get_Name_ID_Func)( TT_Face    face,
                           FT_UShort  nameid,
@@ -486,42 +626,45 @@ FT_BEGIN_HEADER
                           FT_Int    *apple );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Load_Table_Func                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load a given TrueType table.                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The function uses `face->goto_table' to seek the stream to the     */
-  /*    start of the table, except while loading the font directory.       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Load_Table_Func
+   *
+   * @description:
+   *   Load a given TrueType table.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   The function uses `face->goto_table` to seek the stream to the start
+   *   of the table, except while loading the font directory.
+   */
   typedef FT_Error
   (*TT_Load_Table_Func)( TT_Face    face,
                          FT_Stream  stream );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Free_Table_Func                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Free a given TrueType table.                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the target face object.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Free_Table_Func
+   *
+   * @description:
+   *   Free a given TrueType table.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the target face object.
+   */
   typedef void
   (*TT_Free_Table_Func)( TT_Face  face );
 
@@ -534,9 +677,14 @@ FT_BEGIN_HEADER
    *    Return the horizontal kerning value between two glyphs.
    *
    * @input:
-   *    face        :: A handle to the source face object.
-   *    left_glyph  :: The left glyph index.
-   *    right_glyph :: The right glyph index.
+   *    face ::
+   *      A handle to the source face object.
+   *
+   *    left_glyph ::
+   *      The left glyph index.
+   *
+   *    right_glyph ::
+   *      The right glyph index.
    *
    * @return:
    *    The kerning value in font units.
@@ -547,18 +695,18 @@ FT_BEGIN_HEADER
                              FT_UInt  right_glyph );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    SFNT_Interface                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure holds pointers to the functions used to load and    */
-  /*    free the basic tables that are required in a `sfnt' font file.     */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    Check the various xxx_Func() descriptions for details.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   SFNT_Interface
+   *
+   * @description:
+   *   This structure holds pointers to the functions used to load and free
+   *   the basic tables that are required in a 'sfnt' font file.
+   *
+   * @fields:
+   *   Check the various xxx_Func() descriptions for details.
+   */
   typedef struct  SFNT_Interface_
   {
     TT_Loader_GotoTableFunc      goto_table;
@@ -616,6 +764,14 @@ FT_BEGIN_HEADER
     TT_Set_SBit_Strike_Func      set_sbit_strike;
     TT_Load_Strike_Metrics_Func  load_strike_metrics;
 
+    TT_Load_Table_Func           load_cpal;
+    TT_Load_Table_Func           load_colr;
+    TT_Free_Table_Func           free_cpal;
+    TT_Free_Table_Func           free_colr;
+    TT_Set_Palette_Func          set_palette;
+    TT_Get_Colr_Layer_Func       get_colr_layer;
+    TT_Blend_Colr_Func           colr_blend;
+
     TT_Get_Metrics_Func          get_metrics;
 
     TT_Get_Name_Func             get_name;
@@ -627,7 +783,6 @@ FT_BEGIN_HEADER
   /* transitional */
   typedef SFNT_Interface*   SFNT_Service;
 
-#ifndef FT_CONFIG_OPTION_PIC
 
 #define FT_DEFINE_SFNT_INTERFACE(        \
           class_,                        \
@@ -659,6 +814,13 @@ FT_BEGIN_HEADER
           free_eblc_,                    \
           set_sbit_strike_,              \
           load_strike_metrics_,          \
+          load_cpal_,                    \
+          load_colr_,                    \
+          free_cpal_,                    \
+          free_colr_,                    \
+          set_palette_,                  \
+          get_colr_layer_,               \
+          colr_blend_,                   \
           get_metrics_,                  \
           get_name_,                     \
           get_name_id_ )                 \
@@ -692,89 +854,18 @@ FT_BEGIN_HEADER
     free_eblc_,                          \
     set_sbit_strike_,                    \
     load_strike_metrics_,                \
+    load_cpal_,                          \
+    load_colr_,                          \
+    free_cpal_,                          \
+    free_colr_,                          \
+    set_palette_,                        \
+    get_colr_layer_,                     \
+    colr_blend_,                         \
     get_metrics_,                        \
     get_name_,                           \
     get_name_id_                         \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_INTERNAL( a, a_ )  \
-          clazz->a = a_;
-
-#define FT_DEFINE_SFNT_INTERFACE(                       \
-          class_,                                       \
-          goto_table_,                                  \
-          init_face_,                                   \
-          load_face_,                                   \
-          done_face_,                                   \
-          get_interface_,                               \
-          load_any_,                                    \
-          load_head_,                                   \
-          load_hhea_,                                   \
-          load_cmap_,                                   \
-          load_maxp_,                                   \
-          load_os2_,                                    \
-          load_post_,                                   \
-          load_name_,                                   \
-          free_name_,                                   \
-          load_kern_,                                   \
-          load_gasp_,                                   \
-          load_pclt_,                                   \
-          load_bhed_,                                   \
-          load_sbit_image_,                             \
-          get_psname_,                                  \
-          free_psnames_,                                \
-          get_kerning_,                                 \
-          load_font_dir_,                               \
-          load_hmtx_,                                   \
-          load_eblc_,                                   \
-          free_eblc_,                                   \
-          set_sbit_strike_,                             \
-          load_strike_metrics_,                         \
-          get_metrics_,                                 \
-          get_name_,                                    \
-          get_name_id_ )                                \
-  void                                                  \
-  FT_Init_Class_ ## class_( FT_Library       library,   \
-                            SFNT_Interface*  clazz )    \
-  {                                                     \
-    FT_UNUSED( library );                               \
-                                                        \
-    clazz->goto_table          = goto_table_;           \
-    clazz->init_face           = init_face_;            \
-    clazz->load_face           = load_face_;            \
-    clazz->done_face           = done_face_;            \
-    clazz->get_interface       = get_interface_;        \
-    clazz->load_any            = load_any_;             \
-    clazz->load_head           = load_head_;            \
-    clazz->load_hhea           = load_hhea_;            \
-    clazz->load_cmap           = load_cmap_;            \
-    clazz->load_maxp           = load_maxp_;            \
-    clazz->load_os2            = load_os2_;             \
-    clazz->load_post           = load_post_;            \
-    clazz->load_name           = load_name_;            \
-    clazz->free_name           = free_name_;            \
-    clazz->load_kern           = load_kern_;            \
-    clazz->load_gasp           = load_gasp_;            \
-    clazz->load_pclt           = load_pclt_;            \
-    clazz->load_bhed           = load_bhed_;            \
-    clazz->load_sbit_image     = load_sbit_image_;      \
-    clazz->get_psname          = get_psname_;           \
-    clazz->free_psnames        = free_psnames_;         \
-    clazz->get_kerning         = get_kerning_;          \
-    clazz->load_font_dir       = load_font_dir_;        \
-    clazz->load_hmtx           = load_hmtx_;            \
-    clazz->load_eblc           = load_eblc_;            \
-    clazz->free_eblc           = free_eblc_;            \
-    clazz->set_sbit_strike     = set_sbit_strike_;      \
-    clazz->load_strike_metrics = load_strike_metrics_;  \
-    clazz->get_metrics         = get_metrics_;          \
-    clazz->get_name            = get_name_;             \
-    clazz->get_name_id         = get_name_id_;          \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
 
 FT_END_HEADER
 
diff --git a/thirdparty/freetype/include/freetype/internal/t1types.h b/thirdparty/freetype/include/freetype/internal/t1types.h
index 2118e33674..e197a1afca 100644
--- a/thirdparty/freetype/include/freetype/internal/t1types.h
+++ b/thirdparty/freetype/include/freetype/internal/t1types.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1types.h                                                              */
-/*                                                                         */
-/*    Basic Type1/Type2 type definitions and interface (specification      */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1types.h
+ *
+ *   Basic Type1/Type2 type definitions and interface (specification
+ *   only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1TYPES_H_
@@ -45,28 +45,31 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    T1_EncodingRec                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure modeling a custom encoding.                            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_chars  :: The number of character codes in the encoding.       */
-  /*                  Usually 256.                                         */
-  /*                                                                       */
-  /*    code_first :: The lowest valid character code in the encoding.     */
-  /*                                                                       */
-  /*    code_last  :: The highest valid character code in the encoding     */
-  /*                  + 1. When equal to code_first there are no valid     */
-  /*                  character codes.                                     */
-  /*                                                                       */
-  /*    char_index :: An array of corresponding glyph indices.             */
-  /*                                                                       */
-  /*    char_name  :: An array of corresponding glyph names.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   T1_EncodingRec
+   *
+   * @description:
+   *   A structure modeling a custom encoding.
+   *
+   * @fields:
+   *   num_chars ::
+   *     The number of character codes in the encoding.  Usually 256.
+   *
+   *   code_first ::
+   *     The lowest valid character code in the encoding.
+   *
+   *   code_last ::
+   *     The highest valid character code in the encoding + 1. When equal to
+   *     code_first there are no valid character codes.
+   *
+   *   char_index ::
+   *     An array of corresponding glyph indices.
+   *
+   *   char_name ::
+   *     An array of corresponding glyph names.
+   */
   typedef struct  T1_EncodingRecRec_
   {
     FT_Int       num_chars;
diff --git a/thirdparty/freetype/include/freetype/internal/tttypes.h b/thirdparty/freetype/include/freetype/internal/tttypes.h
index 10dd336a89..5e9f40ec3f 100644
--- a/thirdparty/freetype/include/freetype/internal/tttypes.h
+++ b/thirdparty/freetype/include/freetype/internal/tttypes.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  tttypes.h                                                              */
-/*                                                                         */
-/*    Basic SFNT/TrueType type definitions and interface (specification    */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * tttypes.h
+ *
+ *   Basic SFNT/TrueType type definitions and interface (specification
+ *   only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTTYPES_H_
@@ -24,6 +24,7 @@
 #include <ft2build.h>
 #include FT_TRUETYPE_TABLES_H
 #include FT_INTERNAL_OBJECTS_H
+#include FT_COLOR_H
 
 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
 #include FT_MULTIPLE_MASTERS_H
@@ -46,27 +47,30 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TTC_HeaderRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    TrueType collection header.  This table contains the offsets of    */
-  /*    the font headers of each distinct TrueType face in the file.       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    tag     :: Must be `ttc ' to indicate a TrueType collection.       */
-  /*                                                                       */
-  /*    version :: The version number.                                     */
-  /*                                                                       */
-  /*    count   :: The number of faces in the collection.  The             */
-  /*               specification says this should be an unsigned long, but */
-  /*               we use a signed long since we need the value -1 for     */
-  /*               specific purposes.                                      */
-  /*                                                                       */
-  /*    offsets :: The offsets of the font headers, one per face.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TTC_HeaderRec
+   *
+   * @description:
+   *   TrueType collection header.  This table contains the offsets of the
+   *   font headers of each distinct TrueType face in the file.
+   *
+   * @fields:
+   *   tag ::
+   *     Must be 'ttc~' to indicate a TrueType collection.
+   *
+   *   version ::
+   *     The version number.
+   *
+   *   count ::
+   *     The number of faces in the collection.  The specification says this
+   *     should be an unsigned long, but we use a signed long since we need
+   *     the value -1 for specific purposes.
+   *
+   *   offsets ::
+   *     The offsets of the font headers, one per face.
+   */
   typedef struct  TTC_HeaderRec_
   {
     FT_ULong   tag;
@@ -77,25 +81,30 @@ FT_BEGIN_HEADER
   } TTC_HeaderRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    SFNT_HeaderRec                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    SFNT file format header.                                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    format_tag     :: The font format tag.                             */
-  /*                                                                       */
-  /*    num_tables     :: The number of tables in file.                    */
-  /*                                                                       */
-  /*    search_range   :: Must be `16 * (max power of 2 <= num_tables)'.   */
-  /*                                                                       */
-  /*    entry_selector :: Must be log2 of `search_range / 16'.             */
-  /*                                                                       */
-  /*    range_shift    :: Must be `num_tables * 16 - search_range'.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   SFNT_HeaderRec
+   *
+   * @description:
+   *   SFNT file format header.
+   *
+   * @fields:
+   *   format_tag ::
+   *     The font format tag.
+   *
+   *   num_tables ::
+   *     The number of tables in file.
+   *
+   *   search_range ::
+   *     Must be '16 * (max power of 2 <= num_tables)'.
+   *
+   *   entry_selector ::
+   *     Must be log2 of 'search_range / 16'.
+   *
+   *   range_shift ::
+   *     Must be 'num_tables * 16 - search_range'.
+   */
   typedef struct  SFNT_HeaderRec_
   {
     FT_ULong   format_tag;
@@ -109,24 +118,28 @@ FT_BEGIN_HEADER
   } SFNT_HeaderRec, *SFNT_Header;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_TableRec                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure describes a given table of a TrueType font.         */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    Tag      :: A four-bytes tag describing the table.                 */
-  /*                                                                       */
-  /*    CheckSum :: The table checksum.  This value can be ignored.        */
-  /*                                                                       */
-  /*    Offset   :: The offset of the table from the start of the TrueType */
-  /*                font in its resource.                                  */
-  /*                                                                       */
-  /*    Length   :: The table length (in bytes).                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_TableRec
+   *
+   * @description:
+   *   This structure describes a given table of a TrueType font.
+   *
+   * @fields:
+   *   Tag ::
+   *     A four-bytes tag describing the table.
+   *
+   *   CheckSum ::
+   *     The table checksum.  This value can be ignored.
+   *
+   *   Offset ::
+   *     The offset of the table from the start of the TrueType font in its
+   *     resource.
+   *
+   *   Length ::
+   *     The table length (in bytes).
+   */
   typedef struct  TT_TableRec_
   {
     FT_ULong  Tag;        /*        table type */
@@ -137,19 +150,19 @@ FT_BEGIN_HEADER
   } TT_TableRec, *TT_Table;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    WOFF_HeaderRec                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    WOFF file format header.                                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    See                                                                */
-  /*                                                                       */
-  /*      https://www.w3.org/TR/WOFF/#WOFFHeader                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   WOFF_HeaderRec
+   *
+   * @description:
+   *   WOFF file format header.
+   *
+   * @fields:
+   *   See
+   *
+   *     https://www.w3.org/TR/WOFF/#WOFFHeader
+   */
   typedef struct  WOFF_HeaderRec_
   {
     FT_ULong   signature;
@@ -169,30 +182,36 @@ FT_BEGIN_HEADER
   } WOFF_HeaderRec, *WOFF_Header;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    WOFF_TableRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This structure describes a given table of a WOFF font.             */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    Tag        :: A four-bytes tag describing the table.               */
-  /*                                                                       */
-  /*    Offset     :: The offset of the table from the start of the WOFF   */
-  /*                  font in its resource.                                */
-  /*                                                                       */
-  /*    CompLength :: Compressed table length (in bytes).                  */
-  /*                                                                       */
-  /*    OrigLength :: Uncompressed table length (in bytes).                */
-  /*                                                                       */
-  /*    CheckSum   :: The table checksum.  This value can be ignored.      */
-  /*                                                                       */
-  /*    OrigOffset :: The uncompressed table file offset.  This value gets */
-  /*                  computed while constructing the (uncompressed) SFNT  */
-  /*                  header.  It is not contained in the WOFF file.       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   WOFF_TableRec
+   *
+   * @description:
+   *   This structure describes a given table of a WOFF font.
+   *
+   * @fields:
+   *   Tag ::
+   *     A four-bytes tag describing the table.
+   *
+   *   Offset ::
+   *     The offset of the table from the start of the WOFF font in its
+   *     resource.
+   *
+   *   CompLength ::
+   *     Compressed table length (in bytes).
+   *
+   *   OrigLength ::
+   *     Uncompressed table length (in bytes).
+   *
+   *   CheckSum ::
+   *     The table checksum.  This value can be ignored.
+   *
+   *   OrigOffset ::
+   *     The uncompressed table file offset.  This value gets computed while
+   *     constructing the (uncompressed) SFNT header.  It is not contained in
+   *     the WOFF file.
+   */
   typedef struct  WOFF_TableRec_
   {
     FT_ULong  Tag;           /* table ID                  */
@@ -206,20 +225,22 @@ FT_BEGIN_HEADER
   } WOFF_TableRec, *WOFF_Table;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_LongMetricsRec                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure modeling the long metrics of the `hmtx' and `vmtx'     */
-  /*    TrueType tables.  The values are expressed in font units.          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    advance :: The advance width or height for the glyph.              */
-  /*                                                                       */
-  /*    bearing :: The left-side or top-side bearing for the glyph.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_LongMetricsRec
+   *
+   * @description:
+   *   A structure modeling the long metrics of the 'hmtx' and 'vmtx'
+   *   TrueType tables.  The values are expressed in font units.
+   *
+   * @fields:
+   *   advance ::
+   *     The advance width or height for the glyph.
+   *
+   *   bearing ::
+   *     The left-side or top-side bearing for the glyph.
+   */
   typedef struct  TT_LongMetricsRec_
   {
     FT_UShort  advance;
@@ -228,45 +249,51 @@ FT_BEGIN_HEADER
   } TT_LongMetricsRec, *TT_LongMetrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    TT_ShortMetrics                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple type to model the short metrics of the `hmtx' and `vmtx'  */
-  /*    tables.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   TT_ShortMetrics
+   *
+   * @description:
+   *   A simple type to model the short metrics of the 'hmtx' and 'vmtx'
+   *   tables.
+   */
   typedef FT_Short  TT_ShortMetrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_NameRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure modeling TrueType name records.  Name records are used */
-  /*    to store important strings like family name, style name,           */
-  /*    copyright, etc. in _localized_ versions (i.e., language, encoding, */
-  /*    etc).                                                              */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    platformID   :: The ID of the name's encoding platform.            */
-  /*                                                                       */
-  /*    encodingID   :: The platform-specific ID for the name's encoding.  */
-  /*                                                                       */
-  /*    languageID   :: The platform-specific ID for the name's language.  */
-  /*                                                                       */
-  /*    nameID       :: The ID specifying what kind of name this is.       */
-  /*                                                                       */
-  /*    stringLength :: The length of the string in bytes.                 */
-  /*                                                                       */
-  /*    stringOffset :: The offset to the string in the `name' table.      */
-  /*                                                                       */
-  /*    string       :: A pointer to the string's bytes.  Note that these  */
-  /*                    are usually UTF-16 encoded characters.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_NameRec
+   *
+   * @description:
+   *   A structure modeling TrueType name records.  Name records are used to
+   *   store important strings like family name, style name, copyright,
+   *   etc. in _localized_ versions (i.e., language, encoding, etc).
+   *
+   * @fields:
+   *   platformID ::
+   *     The ID of the name's encoding platform.
+   *
+   *   encodingID ::
+   *     The platform-specific ID for the name's encoding.
+   *
+   *   languageID ::
+   *     The platform-specific ID for the name's language.
+   *
+   *   nameID ::
+   *     The ID specifying what kind of name this is.
+   *
+   *   stringLength ::
+   *     The length of the string in bytes.
+   *
+   *   stringOffset ::
+   *     The offset to the string in the 'name' table.
+   *
+   *   string ::
+   *     A pointer to the string's bytes.  Note that these are usually UTF-16
+   *     encoded characters.
+   */
   typedef struct  TT_NameRec_
   {
     FT_UShort  platformID;
@@ -284,23 +311,26 @@ FT_BEGIN_HEADER
   } TT_NameRec, *TT_Name;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_LangTagRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure modeling language tag records in SFNT `name' tables,   */
-  /*    introduced in OpenType version 1.6.                                */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    stringLength :: The length of the string in bytes.                 */
-  /*                                                                       */
-  /*    stringOffset :: The offset to the string in the `name' table.      */
-  /*                                                                       */
-  /*    string       :: A pointer to the string's bytes.  Note that these  */
-  /*                    are UTF-16BE encoded characters.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_LangTagRec
+   *
+   * @description:
+   *   A structure modeling language tag records in SFNT 'name' tables,
+   *   introduced in OpenType version 1.6.
+   *
+   * @fields:
+   *   stringLength ::
+   *     The length of the string in bytes.
+   *
+   *   stringOffset ::
+   *     The offset to the string in the 'name' table.
+   *
+   *   string ::
+   *     A pointer to the string's bytes.  Note that these are UTF-16BE
+   *     encoded characters.
+   */
   typedef struct TT_LangTagRec_
   {
     FT_UShort  stringLength;
@@ -314,30 +344,36 @@ FT_BEGIN_HEADER
   } TT_LangTagRec, *TT_LangTag;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_NameTableRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure modeling the TrueType name table.                      */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    format            :: The format of the name table.                 */
-  /*                                                                       */
-  /*    numNameRecords    :: The number of names in table.                 */
-  /*                                                                       */
-  /*    storageOffset     :: The offset of the name table in the `name'    */
-  /*                         TrueType table.                               */
-  /*                                                                       */
-  /*    names             :: An array of name records.                     */
-  /*                                                                       */
-  /*    numLangTagRecords :: The number of language tags in table.         */
-  /*                                                                       */
-  /*    langTags          :: An array of language tag records.             */
-  /*                                                                       */
-  /*    stream            :: The file's input stream.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_NameTableRec
+   *
+   * @description:
+   *   A structure modeling the TrueType name table.
+   *
+   * @fields:
+   *   format ::
+   *     The format of the name table.
+   *
+   *   numNameRecords ::
+   *     The number of names in table.
+   *
+   *   storageOffset ::
+   *     The offset of the name table in the 'name' TrueType table.
+   *
+   *   names ::
+   *     An array of name records.
+   *
+   *   numLangTagRecords ::
+   *     The number of language tags in table.
+   *
+   *   langTags ::
+   *     An array of language tag records.
+   *
+   *   stream ::
+   *     The file's input stream.
+   */
   typedef struct  TT_NameTableRec_
   {
     FT_UShort       format;
@@ -364,21 +400,23 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_GaspRangeRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A tiny structure used to model a gasp range according to the       */
-  /*    TrueType specification.                                            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    maxPPEM  :: The maximum ppem value to which `gaspFlag' applies.    */
-  /*                                                                       */
-  /*    gaspFlag :: A flag describing the grid-fitting and anti-aliasing   */
-  /*                modes to be used.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_GaspRangeRec
+   *
+   * @description:
+   *   A tiny structure used to model a gasp range according to the TrueType
+   *   specification.
+   *
+   * @fields:
+   *   maxPPEM ::
+   *     The maximum ppem value to which `gaspFlag` applies.
+   *
+   *   gaspFlag ::
+   *     A flag describing the grid-fitting and anti-aliasing modes to be
+   *     used.
+   */
   typedef struct  TT_GaspRangeRec_
   {
     FT_UShort  maxPPEM;
@@ -391,22 +429,25 @@ FT_BEGIN_HEADER
 #define TT_GASP_DOGRAY   0x02
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_GaspRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure modeling the TrueType `gasp' table used to specify     */
-  /*    grid-fitting and anti-aliasing behaviour.                          */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    version    :: The version number.                                  */
-  /*                                                                       */
-  /*    numRanges  :: The number of gasp ranges in table.                  */
-  /*                                                                       */
-  /*    gaspRanges :: An array of gasp ranges.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_GaspRec
+   *
+   * @description:
+   *   A structure modeling the TrueType 'gasp' table used to specify
+   *   grid-fitting and anti-aliasing behaviour.
+   *
+   * @fields:
+   *   version ::
+   *     The version number.
+   *
+   *   numRanges ::
+   *     The number of gasp ranges in table.
+   *
+   *   gaspRanges ::
+   *     An array of gasp ranges.
+   */
   typedef struct  TT_Gasp_
   {
     FT_UShort     version;
@@ -429,33 +470,41 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_MetricsRec                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to hold the big metrics of a given glyph bitmap   */
-  /*    in a TrueType or OpenType font.  These are usually found in the    */
-  /*    `EBDT' (Microsoft) or `bloc' (Apple) table.                        */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    height       :: The glyph height in pixels.                        */
-  /*                                                                       */
-  /*    width        :: The glyph width in pixels.                         */
-  /*                                                                       */
-  /*    horiBearingX :: The horizontal left bearing.                       */
-  /*                                                                       */
-  /*    horiBearingY :: The horizontal top bearing.                        */
-  /*                                                                       */
-  /*    horiAdvance  :: The horizontal advance.                            */
-  /*                                                                       */
-  /*    vertBearingX :: The vertical left bearing.                         */
-  /*                                                                       */
-  /*    vertBearingY :: The vertical top bearing.                          */
-  /*                                                                       */
-  /*    vertAdvance  :: The vertical advance.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_MetricsRec
+   *
+   * @description:
+   *   A structure used to hold the big metrics of a given glyph bitmap in a
+   *   TrueType or OpenType font.  These are usually found in the 'EBDT'
+   *   (Microsoft) or 'bloc' (Apple) table.
+   *
+   * @fields:
+   *   height ::
+   *     The glyph height in pixels.
+   *
+   *   width ::
+   *     The glyph width in pixels.
+   *
+   *   horiBearingX ::
+   *     The horizontal left bearing.
+   *
+   *   horiBearingY ::
+   *     The horizontal top bearing.
+   *
+   *   horiAdvance ::
+   *     The horizontal advance.
+   *
+   *   vertBearingX ::
+   *     The vertical left bearing.
+   *
+   *   vertBearingY ::
+   *     The vertical top bearing.
+   *
+   *   vertAdvance ::
+   *     The vertical advance.
+   */
   typedef struct  TT_SBit_MetricsRec_
   {
     FT_UShort  height;
@@ -472,27 +521,32 @@ FT_BEGIN_HEADER
   } TT_SBit_MetricsRec, *TT_SBit_Metrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_SmallMetricsRec                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to hold the small metrics of a given glyph bitmap */
-  /*    in a TrueType or OpenType font.  These are usually found in the    */
-  /*    `EBDT' (Microsoft) or the `bdat' (Apple) table.                    */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    height   :: The glyph height in pixels.                            */
-  /*                                                                       */
-  /*    width    :: The glyph width in pixels.                             */
-  /*                                                                       */
-  /*    bearingX :: The left-side bearing.                                 */
-  /*                                                                       */
-  /*    bearingY :: The top-side bearing.                                  */
-  /*                                                                       */
-  /*    advance  :: The advance width or height.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_SmallMetricsRec
+   *
+   * @description:
+   *   A structure used to hold the small metrics of a given glyph bitmap in
+   *   a TrueType or OpenType font.  These are usually found in the 'EBDT'
+   *   (Microsoft) or the 'bdat' (Apple) table.
+   *
+   * @fields:
+   *   height ::
+   *     The glyph height in pixels.
+   *
+   *   width ::
+   *     The glyph width in pixels.
+   *
+   *   bearingX ::
+   *     The left-side bearing.
+   *
+   *   bearingY ::
+   *     The top-side bearing.
+   *
+   *   advance ::
+   *     The advance width or height.
+   */
   typedef struct  TT_SBit_Small_Metrics_
   {
     FT_Byte  height;
@@ -505,57 +559,60 @@ FT_BEGIN_HEADER
   } TT_SBit_SmallMetricsRec, *TT_SBit_SmallMetrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_LineMetricsRec                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to describe the text line metrics of a given      */
-  /*    bitmap strike, for either a horizontal or vertical layout.         */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    ascender                :: The ascender in pixels.                 */
-  /*                                                                       */
-  /*    descender               :: The descender in pixels.                */
-  /*                                                                       */
-  /*    max_width               :: The maximum glyph width in pixels.      */
-  /*                                                                       */
-  /*    caret_slope_enumerator  :: Rise of the caret slope, typically set  */
-  /*                               to 1 for non-italic fonts.              */
-  /*                                                                       */
-  /*    caret_slope_denominator :: Rise of the caret slope, typically set  */
-  /*                               to 0 for non-italic fonts.              */
-  /*                                                                       */
-  /*    caret_offset            :: Offset in pixels to move the caret for  */
-  /*                               proper positioning.                     */
-  /*                                                                       */
-  /*    min_origin_SB           :: Minimum of horiBearingX (resp.          */
-  /*                               vertBearingY).                          */
-  /*    min_advance_SB          :: Minimum of                              */
-  /*                                                                       */
-  /*                                 horizontal advance -                  */
-  /*                                   ( horiBearingX + width )            */
-  /*                                                                       */
-  /*                               resp.                                   */
-  /*                                                                       */
-  /*                                 vertical advance -                    */
-  /*                                   ( vertBearingY + height )           */
-  /*                                                                       */
-  /*    max_before_BL           :: Maximum of horiBearingY (resp.          */
-  /*                               vertBearingY).                          */
-  /*                                                                       */
-  /*    min_after_BL            :: Minimum of                              */
-  /*                                                                       */
-  /*                                 horiBearingY - height                 */
-  /*                                                                       */
-  /*                               resp.                                   */
-  /*                                                                       */
-  /*                                 vertBearingX - width                  */
-  /*                                                                       */
-  /*    pads                    :: Unused (to make the size of the record  */
-  /*                               a multiple of 32 bits.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_LineMetricsRec
+   *
+   * @description:
+   *   A structure used to describe the text line metrics of a given bitmap
+   *   strike, for either a horizontal or vertical layout.
+   *
+   * @fields:
+   *   ascender ::
+   *     The ascender in pixels.
+   *
+   *   descender ::
+   *     The descender in pixels.
+   *
+   *   max_width ::
+   *     The maximum glyph width in pixels.
+   *
+   *   caret_slope_enumerator ::
+   *     Rise of the caret slope, typically set to 1 for non-italic fonts.
+   *
+   *   caret_slope_denominator ::
+   *     Rise of the caret slope, typically set to 0 for non-italic fonts.
+   *
+   *   caret_offset ::
+   *     Offset in pixels to move the caret for proper positioning.
+   *
+   *   min_origin_SB ::
+   *     Minimum of horiBearingX (resp.  vertBearingY).
+   *   min_advance_SB ::
+   *     Minimum of
+   *
+   *     horizontal advance - ( horiBearingX + width )
+   *
+   *     resp.
+   *
+   *     vertical advance - ( vertBearingY + height )
+   *
+   *   max_before_BL ::
+   *     Maximum of horiBearingY (resp.  vertBearingY).
+   *
+   *   min_after_BL ::
+   *     Minimum of
+   *
+   *     horiBearingY - height
+   *
+   *     resp.
+   *
+   *     vertBearingX - width
+   *
+   *   pads ::
+   *     Unused (to make the size of the record a multiple of 32 bits.
+   */
   typedef struct  TT_SBit_LineMetricsRec_
   {
     FT_Char  ascender;
@@ -573,43 +630,53 @@ FT_BEGIN_HEADER
   } TT_SBit_LineMetricsRec, *TT_SBit_LineMetrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_RangeRec                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A TrueType/OpenType subIndexTable as defined in the `EBLC'         */
-  /*    (Microsoft) or `bloc' (Apple) tables.                              */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    first_glyph   :: The first glyph index in the range.               */
-  /*                                                                       */
-  /*    last_glyph    :: The last glyph index in the range.                */
-  /*                                                                       */
-  /*    index_format  :: The format of index table.  Valid values are 1    */
-  /*                     to 5.                                             */
-  /*                                                                       */
-  /*    image_format  :: The format of `EBDT' image data.                  */
-  /*                                                                       */
-  /*    image_offset  :: The offset to image data in `EBDT'.               */
-  /*                                                                       */
-  /*    image_size    :: For index formats 2 and 5.  This is the size in   */
-  /*                     bytes of each glyph bitmap.                       */
-  /*                                                                       */
-  /*    big_metrics   :: For index formats 2 and 5.  This is the big       */
-  /*                     metrics for each glyph bitmap.                    */
-  /*                                                                       */
-  /*    num_glyphs    :: For index formats 4 and 5.  This is the number of */
-  /*                     glyphs in the code array.                         */
-  /*                                                                       */
-  /*    glyph_offsets :: For index formats 1 and 3.                        */
-  /*                                                                       */
-  /*    glyph_codes   :: For index formats 4 and 5.                        */
-  /*                                                                       */
-  /*    table_offset  :: The offset of the index table in the `EBLC'       */
-  /*                     table.  Only used during strike loading.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_RangeRec
+   *
+   * @description:
+   *   A TrueType/OpenType subIndexTable as defined in the 'EBLC' (Microsoft)
+   *   or 'bloc' (Apple) tables.
+   *
+   * @fields:
+   *   first_glyph ::
+   *     The first glyph index in the range.
+   *
+   *   last_glyph ::
+   *     The last glyph index in the range.
+   *
+   *   index_format ::
+   *     The format of index table.  Valid values are 1 to 5.
+   *
+   *   image_format ::
+   *     The format of 'EBDT' image data.
+   *
+   *   image_offset ::
+   *     The offset to image data in 'EBDT'.
+   *
+   *   image_size ::
+   *     For index formats 2 and 5.  This is the size in bytes of each glyph
+   *     bitmap.
+   *
+   *   big_metrics ::
+   *     For index formats 2 and 5.  This is the big metrics for each glyph
+   *     bitmap.
+   *
+   *   num_glyphs ::
+   *     For index formats 4 and 5.  This is the number of glyphs in the code
+   *     array.
+   *
+   *   glyph_offsets ::
+   *     For index formats 1 and 3.
+   *
+   *   glyph_codes ::
+   *     For index formats 4 and 5.
+   *
+   *   table_offset ::
+   *     The offset of the index table in the 'EBLC' table.  Only used during
+   *     strike loading.
+   */
   typedef struct  TT_SBit_RangeRec_
   {
     FT_UShort           first_glyph;
@@ -631,47 +698,55 @@ FT_BEGIN_HEADER
   } TT_SBit_RangeRec, *TT_SBit_Range;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_StrikeRec                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used describe a given bitmap strike in the `EBLC'      */
-  /*    (Microsoft) or `bloc' (Apple) tables.                              */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*   num_index_ranges :: The number of index ranges.                     */
-  /*                                                                       */
-  /*   index_ranges     :: An array of glyph index ranges.                 */
-  /*                                                                       */
-  /*   color_ref        :: Unused.  `color_ref' is put in for future       */
-  /*                       enhancements, but these fields are already      */
-  /*                       in use by other platforms (e.g. Newton).        */
-  /*                       For details, please see                         */
-  /*                                                                       */
-  /*                         https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6bloc.html */
-  /*                                                                       */
-  /*   hori             :: The line metrics for horizontal layouts.        */
-  /*                                                                       */
-  /*   vert             :: The line metrics for vertical layouts.          */
-  /*                                                                       */
-  /*   start_glyph      :: The lowest glyph index for this strike.         */
-  /*                                                                       */
-  /*   end_glyph        :: The highest glyph index for this strike.        */
-  /*                                                                       */
-  /*   x_ppem           :: The number of horizontal pixels per EM.         */
-  /*                                                                       */
-  /*   y_ppem           :: The number of vertical pixels per EM.           */
-  /*                                                                       */
-  /*   bit_depth        :: The bit depth.  Valid values are 1, 2, 4,       */
-  /*                       and 8.                                          */
-  /*                                                                       */
-  /*   flags            :: Is this a vertical or horizontal strike?  For   */
-  /*                       details, please see                             */
-  /*                                                                       */
-  /*                         https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6bloc.html */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_StrikeRec
+   *
+   * @description:
+   *   A structure used describe a given bitmap strike in the 'EBLC'
+   *   (Microsoft) or 'bloc' (Apple) tables.
+   *
+   * @fields:
+   *  num_index_ranges ::
+   *    The number of index ranges.
+   *
+   *  index_ranges ::
+   *    An array of glyph index ranges.
+   *
+   *  color_ref ::
+   *    Unused.  `color_ref` is put in for future enhancements, but these
+   *    fields are already in use by other platforms (e.g. Newton).  For
+   *    details, please see
+   *
+   *    https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6bloc.html
+   *
+   *  hori ::
+   *    The line metrics for horizontal layouts.
+   *
+   *  vert ::
+   *    The line metrics for vertical layouts.
+   *
+   *  start_glyph ::
+   *    The lowest glyph index for this strike.
+   *
+   *  end_glyph ::
+   *    The highest glyph index for this strike.
+   *
+   *  x_ppem ::
+   *    The number of horizontal pixels per EM.
+   *
+   *  y_ppem ::
+   *    The number of vertical pixels per EM.
+   *
+   *  bit_depth ::
+   *    The bit depth.  Valid values are 1, 2, 4, and 8.
+   *
+   *  flags ::
+   *    Is this a vertical or horizontal strike?  For details, please see
+   *
+   *    https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6bloc.html
+   */
   typedef struct  TT_SBit_StrikeRec_
   {
     FT_Int                  num_ranges;
@@ -695,21 +770,24 @@ FT_BEGIN_HEADER
   } TT_SBit_StrikeRec, *TT_SBit_Strike;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_ComponentRec                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A simple structure to describe a compound sbit element.            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    glyph_code :: The element's glyph index.                           */
-  /*                                                                       */
-  /*    x_offset   :: The element's left bearing.                          */
-  /*                                                                       */
-  /*    y_offset   :: The element's top bearing.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_ComponentRec
+   *
+   * @description:
+   *   A simple structure to describe a compound sbit element.
+   *
+   * @fields:
+   *   glyph_code ::
+   *     The element's glyph index.
+   *
+   *   x_offset ::
+   *     The element's left bearing.
+   *
+   *   y_offset ::
+   *     The element's top bearing.
+   */
   typedef struct  TT_SBit_ComponentRec_
   {
     FT_UShort  glyph_code;
@@ -719,28 +797,34 @@ FT_BEGIN_HEADER
   } TT_SBit_ComponentRec, *TT_SBit_Component;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_SBit_ScaleRec                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used describe a given bitmap scaling table, as defined */
-  /*    in the `EBSC' table.                                               */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    hori              :: The horizontal line metrics.                  */
-  /*                                                                       */
-  /*    vert              :: The vertical line metrics.                    */
-  /*                                                                       */
-  /*    x_ppem            :: The number of horizontal pixels per EM.       */
-  /*                                                                       */
-  /*    y_ppem            :: The number of vertical pixels per EM.         */
-  /*                                                                       */
-  /*    x_ppem_substitute :: Substitution x_ppem value.                    */
-  /*                                                                       */
-  /*    y_ppem_substitute :: Substitution y_ppem value.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_SBit_ScaleRec
+   *
+   * @description:
+   *   A structure used describe a given bitmap scaling table, as defined in
+   *   the 'EBSC' table.
+   *
+   * @fields:
+   *   hori ::
+   *     The horizontal line metrics.
+   *
+   *   vert ::
+   *     The vertical line metrics.
+   *
+   *   x_ppem ::
+   *     The number of horizontal pixels per EM.
+   *
+   *   y_ppem ::
+   *     The number of vertical pixels per EM.
+   *
+   *   x_ppem_substitute ::
+   *     Substitution x_ppem value.
+   *
+   *   y_ppem_substitute ::
+   *     Substitution y_ppem value.
+   */
   typedef struct  TT_SBit_ScaleRec_
   {
     TT_SBit_LineMetricsRec  hori;
@@ -768,24 +852,28 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_Post_20Rec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Postscript names sub-table, format 2.0.  Stores the PS name of     */
-  /*    each glyph in the font face.                                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_glyphs    :: The number of named glyphs in the table.          */
-  /*                                                                       */
-  /*    num_names     :: The number of PS names stored in the table.       */
-  /*                                                                       */
-  /*    glyph_indices :: The indices of the glyphs in the names arrays.    */
-  /*                                                                       */
-  /*    glyph_names   :: The PS names not in Mac Encoding.                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_Post_20Rec
+   *
+   * @description:
+   *   Postscript names sub-table, format 2.0.  Stores the PS name of each
+   *   glyph in the font face.
+   *
+   * @fields:
+   *   num_glyphs ::
+   *     The number of named glyphs in the table.
+   *
+   *   num_names ::
+   *     The number of PS names stored in the table.
+   *
+   *   glyph_indices ::
+   *     The indices of the glyphs in the names arrays.
+   *
+   *   glyph_names ::
+   *     The PS names not in Mac Encoding.
+   */
   typedef struct  TT_Post_20Rec_
   {
     FT_UShort   num_glyphs;
@@ -796,21 +884,22 @@ FT_BEGIN_HEADER
   } TT_Post_20Rec, *TT_Post_20;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_Post_25Rec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Postscript names sub-table, format 2.5.  Stores the PS name of     */
-  /*    each glyph in the font face.                                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_glyphs :: The number of glyphs in the table.                   */
-  /*                                                                       */
-  /*    offsets    :: An array of signed offsets in a normal Mac           */
-  /*                  Postscript name encoding.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_Post_25Rec
+   *
+   * @description:
+   *   Postscript names sub-table, format 2.5.  Stores the PS name of each
+   *   glyph in the font face.
+   *
+   * @fields:
+   *   num_glyphs ::
+   *     The number of glyphs in the table.
+   *
+   *   offsets ::
+   *     An array of signed offsets in a normal Mac Postscript name encoding.
+   */
   typedef struct  TT_Post_25_
   {
     FT_UShort  num_glyphs;
@@ -819,21 +908,24 @@ FT_BEGIN_HEADER
   } TT_Post_25Rec, *TT_Post_25;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_Post_NamesRec                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Postscript names table, either format 2.0 or 2.5.                  */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    loaded    :: A flag to indicate whether the PS names are loaded.   */
-  /*                                                                       */
-  /*    format_20 :: The sub-table used for format 2.0.                    */
-  /*                                                                       */
-  /*    format_25 :: The sub-table used for format 2.5.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_Post_NamesRec
+   *
+   * @description:
+   *   Postscript names table, either format 2.0 or 2.5.
+   *
+   * @fields:
+   *   loaded ::
+   *     A flag to indicate whether the PS names are loaded.
+   *
+   *   format_20 ::
+   *     The sub-table used for format 2.0.
+   *
+   *   format_25 ::
+   *     The sub-table used for format 2.5.
+   */
   typedef struct  TT_Post_NamesRec_
   {
     FT_Bool  loaded;
@@ -879,25 +971,25 @@ FT_BEGIN_HEADER
 
   /*
    * These types are used to support a `BDF ' table that isn't part of the
-   * official TrueType specification.  It is mainly used in SFNT-based
-   * bitmap fonts that were generated from a set of BDF fonts.
+   * official TrueType specification.  It is mainly used in SFNT-based bitmap
+   * fonts that were generated from a set of BDF fonts.
    *
    * The format of the table is as follows.
    *
-   *   USHORT   version      `BDF ' table version number, should be 0x0001.
-   *   USHORT   strikeCount  Number of strikes (bitmap sizes) in this table.
-   *   ULONG    stringTable  Offset (from start of BDF table) to string
+   *   USHORT version `BDF ' table version number, should be 0x0001.  USHORT
+   *   strikeCount Number of strikes (bitmap sizes) in this table.  ULONG
+   *   stringTable Offset (from start of BDF table) to string
    *                         table.
    *
    * This is followed by an array of `strikeCount' descriptors, having the
    * following format.
    *
-   *   USHORT   ppem         Vertical pixels per EM for this strike.
-   *   USHORT   numItems     Number of items for this strike (properties and
+   *   USHORT ppem Vertical pixels per EM for this strike.  USHORT numItems
+   *   Number of items for this strike (properties and
    *                         atoms).  Maximum is 255.
    *
-   * This array in turn is followed by `strikeCount' value sets.  Each
-   * `value set' is an array of `numItems' items with the following format.
+   * This array in turn is followed by `strikeCount' value sets.  Each `value
+   * set' is an array of `numItems' items with the following format.
    *
    *   ULONG    item_name    Offset in string table to item name.
    *   USHORT   item_type    The item type.  Possible values are
@@ -945,31 +1037,30 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* This structure/class is defined here because it is common to the      */
-  /* following formats: TTF, OpenType-TT, and OpenType-CFF.                */
-  /*                                                                       */
-  /* Note, however, that the classes TT_Size and TT_GlyphSlot are not      */
-  /* shared between font drivers, and are thus defined in `ttobjs.h'.      */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * This structure/class is defined here because it is common to the
+   * following formats: TTF, OpenType-TT, and OpenType-CFF.
+   *
+   * Note, however, that the classes TT_Size and TT_GlyphSlot are not shared
+   * between font drivers, and are thus defined in `ttobjs.h`.
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    TT_Face                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a TrueType face/font object.  A TT_Face encapsulates   */
-  /*    the resolution and scaling independent parts of a TrueType font    */
-  /*    resource.                                                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The TT_Face structure is also used as a `parent class' for the     */
-  /*    OpenType-CFF class (T2_Face).                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   TT_Face
+   *
+   * @description:
+   *   A handle to a TrueType face/font object.  A TT_Face encapsulates the
+   *   resolution and scaling independent parts of a TrueType font resource.
+   *
+   * @note:
+   *   The TT_Face structure is also used as a 'parent class' for the
+   *   OpenType-CFF class (T2_Face).
+   */
   typedef struct TT_FaceRec_*  TT_Face;
 
 
@@ -981,31 +1072,34 @@ FT_BEGIN_HEADER
   typedef struct TT_LoaderRec_*  TT_Loader;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Loader_GotoTableFunc                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Seeks a stream to the start of a given TrueType table.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    tag    :: A 4-byte tag used to name the table.                     */
-  /*                                                                       */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    length :: The length of the table in bytes.  Set to 0 if not       */
-  /*              needed.                                                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The stream cursor must be at the font file's origin.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Loader_GotoTableFunc
+   *
+   * @description:
+   *   Seeks a stream to the start of a given TrueType table.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   tag ::
+   *     A 4-byte tag used to name the table.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @output:
+   *   length ::
+   *     The length of the table in bytes.  Set to 0 if not needed.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   The stream cursor must be at the font file's origin.
+   */
   typedef FT_Error
   (*TT_Loader_GotoTableFunc)( TT_Face    face,
                               FT_ULong   tag,
@@ -1013,34 +1107,36 @@ FT_BEGIN_HEADER
                               FT_ULong*  length );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Loader_StartGlyphFunc                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Seeks a stream to the start of a given glyph element, and opens a  */
-  /*    frame for it.                                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    loader      :: The current TrueType glyph loader object.           */
-  /*                                                                       */
-  /*    glyph index :: The index of the glyph to access.                   */
-  /*                                                                       */
-  /*    offset      :: The offset of the glyph according to the            */
-  /*                   `locations' table.                                  */
-  /*                                                                       */
-  /*    byte_count  :: The size of the frame in bytes.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function is normally equivalent to FT_STREAM_SEEK(offset)     */
-  /*    followed by FT_FRAME_ENTER(byte_count) with the loader's stream,   */
-  /*    but alternative formats (e.g. compressed ones) might use something */
-  /*    different.                                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Loader_StartGlyphFunc
+   *
+   * @description:
+   *   Seeks a stream to the start of a given glyph element, and opens a
+   *   frame for it.
+   *
+   * @input:
+   *   loader ::
+   *     The current TrueType glyph loader object.
+   *
+   *     glyph index :: The index of the glyph to access.
+   *
+   *   offset ::
+   *     The offset of the glyph according to the 'locations' table.
+   *
+   *   byte_count ::
+   *     The size of the frame in bytes.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   *
+   * @note:
+   *   This function is normally equivalent to FT_STREAM_SEEK(offset)
+   *   followed by FT_FRAME_ENTER(byte_count) with the loader's stream, but
+   *   alternative formats (e.g. compressed ones) might use something
+   *   different.
+   */
   typedef FT_Error
   (*TT_Loader_StartGlyphFunc)( TT_Loader  loader,
                                FT_UInt    glyph_index,
@@ -1048,36 +1144,38 @@ FT_BEGIN_HEADER
                                FT_UInt    byte_count );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Loader_ReadGlyphFunc                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Reads one glyph element (its header, a simple glyph, or a          */
-  /*    composite) from the loader's current stream frame.                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    loader :: The current TrueType glyph loader object.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Loader_ReadGlyphFunc
+   *
+   * @description:
+   *   Reads one glyph element (its header, a simple glyph, or a composite)
+   *   from the loader's current stream frame.
+   *
+   * @input:
+   *   loader ::
+   *     The current TrueType glyph loader object.
+   *
+   * @return:
+   *   FreeType error code.  0 means success.
+   */
   typedef FT_Error
   (*TT_Loader_ReadGlyphFunc)( TT_Loader  loader );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <FuncType>                                                            */
-  /*    TT_Loader_EndGlyphFunc                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Closes the current loader stream frame for the glyph.              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    loader :: The current TrueType glyph loader object.                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @functype:
+   *   TT_Loader_EndGlyphFunc
+   *
+   * @description:
+   *   Closes the current loader stream frame for the glyph.
+   *
+   * @input:
+   *   loader ::
+   *     The current TrueType glyph loader object.
+   */
   typedef void
   (*TT_Loader_EndGlyphFunc)( TT_Loader  loader );
 
@@ -1124,270 +1222,317 @@ FT_BEGIN_HEADER
 #define TT_FACE_FLAG_VAR_MVAR  ( 1 << 8 )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                         TrueType Face Type                            */
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_Face                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The TrueType face class.  These objects model the resolution and   */
-  /*    point-size independent data found in a TrueType font file.         */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root                 :: The base FT_Face structure, managed by the */
-  /*                            base layer.                                */
-  /*                                                                       */
-  /*    ttc_header           :: The TrueType collection header, used when  */
-  /*                            the file is a `ttc' rather than a `ttf'.   */
-  /*                            For ordinary font files, the field         */
-  /*                            `ttc_header.count' is set to 0.            */
-  /*                                                                       */
-  /*    format_tag           :: The font format tag.                       */
-  /*                                                                       */
-  /*    num_tables           :: The number of TrueType tables in this font */
-  /*                            file.                                      */
-  /*                                                                       */
-  /*    dir_tables           :: The directory of TrueType tables for this  */
-  /*                            font file.                                 */
-  /*                                                                       */
-  /*    header               :: The font's font header (`head' table).     */
-  /*                            Read on font opening.                      */
-  /*                                                                       */
-  /*    horizontal           :: The font's horizontal header (`hhea'       */
-  /*                            table).  This field also contains the      */
-  /*                            associated horizontal metrics table        */
-  /*                            (`hmtx').                                  */
-  /*                                                                       */
-  /*    max_profile          :: The font's maximum profile table.  Read on */
-  /*                            font opening.  Note that some maximum      */
-  /*                            values cannot be taken directly from this  */
-  /*                            table.  We thus define additional fields   */
-  /*                            below to hold the computed maxima.         */
-  /*                                                                       */
-  /*    vertical_info        :: A boolean which is set when the font file  */
-  /*                            contains vertical metrics.  If not, the    */
-  /*                            value of the `vertical' field is           */
-  /*                            undefined.                                 */
-  /*                                                                       */
-  /*    vertical             :: The font's vertical header (`vhea' table). */
-  /*                            This field also contains the associated    */
-  /*                            vertical metrics table (`vmtx'), if found. */
-  /*                            IMPORTANT: The contents of this field is   */
-  /*                            undefined if the `vertical_info' field is  */
-  /*                            unset.                                     */
-  /*                                                                       */
-  /*    num_names            :: The number of name records within this     */
-  /*                            TrueType font.                             */
-  /*                                                                       */
-  /*    name_table           :: The table of name records (`name').        */
-  /*                                                                       */
-  /*    os2                  :: The font's OS/2 table (`OS/2').            */
-  /*                                                                       */
-  /*    postscript           :: The font's PostScript table (`post'        */
-  /*                            table).  The PostScript glyph names are    */
-  /*                            not loaded by the driver on face opening.  */
-  /*                            See the `ttpost' module for more details.  */
-  /*                                                                       */
-  /*    cmap_table           :: Address of the face's `cmap' SFNT table    */
-  /*                            in memory (it's an extracted frame).       */
-  /*                                                                       */
-  /*    cmap_size            :: The size in bytes of the `cmap_table'      */
-  /*                            described above.                           */
-  /*                                                                       */
-  /*    goto_table           :: A function called by each TrueType table   */
-  /*                            loader to position a stream's cursor to    */
-  /*                            the start of a given table according to    */
-  /*                            its tag.  It defaults to TT_Goto_Face but  */
-  /*                            can be different for strange formats (e.g. */
-  /*                            Type 42).                                  */
-  /*                                                                       */
-  /*    access_glyph_frame   :: A function used to access the frame of a   */
-  /*                            given glyph within the face's font file.   */
-  /*                                                                       */
-  /*    forget_glyph_frame   :: A function used to forget the frame of a   */
-  /*                            given glyph when all data has been loaded. */
-  /*                                                                       */
-  /*    read_glyph_header    :: A function used to read a glyph header.    */
-  /*                            It must be called between an `access' and  */
-  /*                            `forget'.                                  */
-  /*                                                                       */
-  /*    read_simple_glyph    :: A function used to read a simple glyph.    */
-  /*                            It must be called after the header was     */
-  /*                            read, and before the `forget'.             */
-  /*                                                                       */
-  /*    read_composite_glyph :: A function used to read a composite glyph. */
-  /*                            It must be called after the header was     */
-  /*                            read, and before the `forget'.             */
-  /*                                                                       */
-  /*    sfnt                 :: A pointer to the SFNT service.             */
-  /*                                                                       */
-  /*    psnames              :: A pointer to the PostScript names service. */
-  /*                                                                       */
-  /*    mm                   :: A pointer to the Multiple Masters service. */
-  /*                                                                       */
-  /*    var                  :: A pointer to the Metrics Variations        */
-  /*                            service.                                   */
-  /*                                                                       */
-  /*    hdmx                 :: The face's horizontal device metrics       */
-  /*                            (`hdmx' table).  This table is optional in */
-  /*                            TrueType/OpenType fonts.                   */
-  /*                                                                       */
-  /*    gasp                 :: The grid-fitting and scaling properties    */
-  /*                            table (`gasp').  This table is optional in */
-  /*                            TrueType/OpenType fonts.                   */
-  /*                                                                       */
-  /*    pclt                 :: The `pclt' SFNT table.                     */
-  /*                                                                       */
-  /*    num_sbit_scales      :: The number of sbit scales for this font.   */
-  /*                                                                       */
-  /*    sbit_scales          :: Array of sbit scales embedded in this      */
-  /*                            font.  This table is optional in a         */
-  /*                            TrueType/OpenType font.                    */
-  /*                                                                       */
-  /*    postscript_names     :: A table used to store the Postscript names */
-  /*                            of  the glyphs for this font.  See the     */
-  /*                            file  `ttconfig.h' for comments on the     */
-  /*                            TT_CONFIG_OPTION_POSTSCRIPT_NAMES option.  */
-  /*                                                                       */
-  /*    font_program_size    :: Size in bytecodes of the face's font       */
-  /*                            program.  0 if none defined.  Ignored for  */
-  /*                            Type 2 fonts.                              */
-  /*                                                                       */
-  /*    font_program         :: The face's font program (bytecode stream)  */
-  /*                            executed at load time, also used during    */
-  /*                            glyph rendering.  Comes from the `fpgm'    */
-  /*                            table.  Ignored for Type 2 font fonts.     */
-  /*                                                                       */
-  /*    cvt_program_size     :: The size in bytecodes of the face's cvt    */
-  /*                            program.  Ignored for Type 2 fonts.        */
-  /*                                                                       */
-  /*    cvt_program          :: The face's cvt program (bytecode stream)   */
-  /*                            executed each time an instance/size is     */
-  /*                            changed/reset.  Comes from the `prep'      */
-  /*                            table.  Ignored for Type 2 fonts.          */
-  /*                                                                       */
-  /*    cvt_size             :: Size of the control value table (in        */
-  /*                            entries).   Ignored for Type 2 fonts.      */
-  /*                                                                       */
-  /*    cvt                  :: The face's original control value table.   */
-  /*                            Coordinates are expressed in unscaled font */
-  /*                            units.  Comes from the `cvt ' table.       */
-  /*                            Ignored for Type 2 fonts.                  */
-  /*                                                                       */
-  /*    interpreter          :: A pointer to the TrueType bytecode         */
-  /*                            interpreters field is also used to hook    */
-  /*                            the debugger in `ttdebug'.                 */
-  /*                                                                       */
-  /*    extra                :: Reserved for third-party font drivers.     */
-  /*                                                                       */
-  /*    postscript_name      :: The PS name of the font.  Used by the      */
-  /*                            postscript name service.                   */
-  /*                                                                       */
-  /*    glyf_len             :: The length of the `glyf' table.  Needed    */
-  /*                            for malformed `loca' tables.               */
-  /*                                                                       */
-  /*    glyf_offset          :: The file offset of the `glyf' table.       */
-  /*                                                                       */
-  /*    is_cff2              :: Set if the font format is CFF2.            */
-  /*                                                                       */
-  /*    doblend              :: A boolean which is set if the font should  */
-  /*                            be blended (this is for GX var).           */
-  /*                                                                       */
-  /*    blend                :: Contains the data needed to control GX     */
-  /*                            variation tables (rather like Multiple     */
-  /*                            Master data).                              */
-  /*                                                                       */
-  /*    variation_support    :: Flags that indicate which OpenType         */
-  /*                            functionality related to font variation    */
-  /*                            support is present, valid, and usable.     */
-  /*                            For example, TT_FACE_FLAG_VAR_FVAR is only */
-  /*                            set if we have at least one design axis.   */
-  /*                                                                       */
-  /*    var_postscript_prefix ::                                           */
-  /*                            The PostScript name prefix needed for      */
-  /*                            constructing a variation font instance's   */
-  /*                            PS name .                                  */
-  /*                                                                       */
-  /*    var_postscript_prefix_len ::                                       */
-  /*                            The length of the `var_postscript_prefix'  */
-  /*                            string.                                    */
-  /*                                                                       */
-  /*    horz_metrics_size    :: The size of the `hmtx' table.              */
-  /*                                                                       */
-  /*    vert_metrics_size    :: The size of the `vmtx' table.              */
-  /*                                                                       */
-  /*    num_locations        :: The number of glyph locations in this      */
-  /*                            TrueType file.  This should be             */
-  /*                            identical to the number of glyphs.         */
-  /*                            Ignored for Type 2 fonts.                  */
-  /*                                                                       */
-  /*    glyph_locations      :: An array of longs.  These are offsets to   */
-  /*                            glyph data within the `glyf' table.        */
-  /*                            Ignored for Type 2 font faces.             */
-  /*                                                                       */
-  /*    hdmx_table           :: A pointer to the `hdmx' table.             */
-  /*                                                                       */
-  /*    hdmx_table_size      :: The size of the `hdmx' table.              */
-  /*                                                                       */
-  /*    hdmx_record_count    :: The number of hdmx records.                */
-  /*                                                                       */
-  /*    hdmx_record_size     :: The size of a single hdmx record.          */
-  /*                                                                       */
-  /*    hdmx_record_sizes    :: An array holding the ppem sizes available  */
-  /*                            in the `hdmx' table.                       */
-  /*                                                                       */
-  /*    sbit_table           :: A pointer to the font's embedded bitmap    */
-  /*                            location table.                            */
-  /*                                                                       */
-  /*    sbit_table_size      :: The size of `sbit_table'.                  */
-  /*                                                                       */
-  /*    sbit_table_type      :: The sbit table type (CBLC, sbix, etc.).    */
-  /*                                                                       */
-  /*    sbit_num_strikes     :: The number of sbit strikes exposed by      */
-  /*                            FreeType's API, omitting invalid strikes.  */
-  /*                                                                       */
-  /*    sbit_strike_map      :: A mapping between the strike indices       */
-  /*                            exposed by the API and the indices used in */
-  /*                            the font's sbit table.                     */
-  /*                                                                       */
-  /*    kern_table           :: A pointer to the `kern' table.             */
-  /*                                                                       */
-  /*    kern_table_size      :: The size of the `kern' table.              */
-  /*                                                                       */
-  /*    num_kern_tables      :: The number of supported kern subtables     */
-  /*                            (up to 32; FreeType recognizes only        */
-  /*                            horizontal ones with format 0).            */
-  /*                                                                       */
-  /*    kern_avail_bits      :: The availability status of kern subtables; */
-  /*                            if bit n is set, table n is available.     */
-  /*                                                                       */
-  /*    kern_order_bits      :: The sortedness status of kern subtables;   */
-  /*                            if bit n is set, table n is sorted.        */
-  /*                                                                       */
-  /*    bdf                  :: Data related to an SFNT font's `bdf'       */
-  /*                            table; see `tttypes.h'.                    */
-  /*                                                                       */
-  /*    horz_metrics_offset  :: The file offset of the `hmtx' table.       */
-  /*                                                                       */
-  /*    vert_metrics_offset  :: The file offset of the `vmtx' table.       */
-  /*                                                                       */
-  /*    sph_found_func_flags :: Flags identifying special bytecode         */
-  /*                            functions (used by the v38 implementation  */
-  /*                            of the bytecode interpreter).              */
-  /*                                                                       */
-  /*    sph_compatibility_mode ::                                          */
-  /*                            This flag is set if we are in ClearType    */
-  /*                            backward compatibility mode (used by the   */
-  /*                            v38 implementation of the bytecode         */
-  /*                            interpreter).                              */
-  /*                                                                       */
-  /*    ebdt_start           :: The file offset of the sbit data table     */
-  /*                            (CBDT, bdat, etc.).                        */
-  /*                                                                       */
-  /*    ebdt_size            :: The size of the sbit data table.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                        TrueType Face Type
+   *
+   * @struct:
+   *   TT_Face
+   *
+   * @description:
+   *   The TrueType face class.  These objects model the resolution and
+   *   point-size independent data found in a TrueType font file.
+   *
+   * @fields:
+   *   root ::
+   *     The base FT_Face structure, managed by the base layer.
+   *
+   *   ttc_header ::
+   *     The TrueType collection header, used when the file is a 'ttc' rather
+   *     than a 'ttf'.  For ordinary font files, the field `ttc_header.count`
+   *     is set to 0.
+   *
+   *   format_tag ::
+   *     The font format tag.
+   *
+   *   num_tables ::
+   *     The number of TrueType tables in this font file.
+   *
+   *   dir_tables ::
+   *     The directory of TrueType tables for this font file.
+   *
+   *   header ::
+   *     The font's font header ('head' table).  Read on font opening.
+   *
+   *   horizontal ::
+   *     The font's horizontal header ('hhea' table).  This field also
+   *     contains the associated horizontal metrics table ('hmtx').
+   *
+   *   max_profile ::
+   *     The font's maximum profile table.  Read on font opening.  Note that
+   *     some maximum values cannot be taken directly from this table.  We
+   *     thus define additional fields below to hold the computed maxima.
+   *
+   *   vertical_info ::
+   *     A boolean which is set when the font file contains vertical metrics.
+   *     If not, the value of the 'vertical' field is undefined.
+   *
+   *   vertical ::
+   *     The font's vertical header ('vhea' table).  This field also contains
+   *     the associated vertical metrics table ('vmtx'), if found.
+   *     IMPORTANT: The contents of this field is undefined if the
+   *     `vertical_info` field is unset.
+   *
+   *   num_names ::
+   *     The number of name records within this TrueType font.
+   *
+   *   name_table ::
+   *     The table of name records ('name').
+   *
+   *   os2 ::
+   *     The font's OS/2 table ('OS/2').
+   *
+   *   postscript ::
+   *     The font's PostScript table ('post' table).  The PostScript glyph
+   *     names are not loaded by the driver on face opening.  See the
+   *     'ttpost' module for more details.
+   *
+   *   cmap_table ::
+   *     Address of the face's 'cmap' SFNT table in memory (it's an extracted
+   *     frame).
+   *
+   *   cmap_size ::
+   *     The size in bytes of the `cmap_table` described above.
+   *
+   *   goto_table ::
+   *     A function called by each TrueType table loader to position a
+   *     stream's cursor to the start of a given table according to its tag.
+   *     It defaults to TT_Goto_Face but can be different for strange formats
+   *     (e.g.  Type 42).
+   *
+   *   access_glyph_frame ::
+   *     A function used to access the frame of a given glyph within the
+   *     face's font file.
+   *
+   *   forget_glyph_frame ::
+   *     A function used to forget the frame of a given glyph when all data
+   *     has been loaded.
+   *
+   *   read_glyph_header ::
+   *     A function used to read a glyph header.  It must be called between
+   *     an 'access' and 'forget'.
+   *
+   *   read_simple_glyph ::
+   *     A function used to read a simple glyph.  It must be called after the
+   *     header was read, and before the 'forget'.
+   *
+   *   read_composite_glyph ::
+   *     A function used to read a composite glyph.  It must be called after
+   *     the header was read, and before the 'forget'.
+   *
+   *   sfnt ::
+   *     A pointer to the SFNT service.
+   *
+   *   psnames ::
+   *     A pointer to the PostScript names service.
+   *
+   *   mm ::
+   *     A pointer to the Multiple Masters service.
+   *
+   *   var ::
+   *     A pointer to the Metrics Variations service.
+   *
+   *   hdmx ::
+   *     The face's horizontal device metrics ('hdmx' table).  This table is
+   *     optional in TrueType/OpenType fonts.
+   *
+   *   gasp ::
+   *     The grid-fitting and scaling properties table ('gasp').  This table
+   *     is optional in TrueType/OpenType fonts.
+   *
+   *   pclt ::
+   *     The 'pclt' SFNT table.
+   *
+   *   num_sbit_scales ::
+   *     The number of sbit scales for this font.
+   *
+   *   sbit_scales ::
+   *     Array of sbit scales embedded in this font.  This table is optional
+   *     in a TrueType/OpenType font.
+   *
+   *   postscript_names ::
+   *     A table used to store the Postscript names of the glyphs for this
+   *     font.  See the file `ttconfig.h` for comments on the
+   *     TT_CONFIG_OPTION_POSTSCRIPT_NAMES option.
+   *
+   *   palette_data ::
+   *     Some fields from the 'CPAL' table that are directly indexed.
+   *
+   *   palette_index ::
+   *     The current palette index, as set by @FT_Palette_Select.
+   *
+   *   palette ::
+   *     An array containing the current palette's colors.
+   *
+   *   have_foreground_color ::
+   *     There was a call to @FT_Palette_Set_Foreground_Color.
+   *
+   *   foreground_color ::
+   *     The current foreground color corresponding to 'CPAL' color index
+   *     0xFFFF.  Only valid if `have_foreground_color` is set.
+   *
+   *   font_program_size ::
+   *     Size in bytecodes of the face's font program.  0 if none defined.
+   *     Ignored for Type 2 fonts.
+   *
+   *   font_program ::
+   *     The face's font program (bytecode stream) executed at load time,
+   *     also used during glyph rendering.  Comes from the 'fpgm' table.
+   *     Ignored for Type 2 font fonts.
+   *
+   *   cvt_program_size ::
+   *     The size in bytecodes of the face's cvt program.  Ignored for Type 2
+   *     fonts.
+   *
+   *   cvt_program ::
+   *     The face's cvt program (bytecode stream) executed each time an
+   *     instance/size is changed/reset.  Comes from the 'prep' table.
+   *     Ignored for Type 2 fonts.
+   *
+   *   cvt_size ::
+   *     Size of the control value table (in entries).  Ignored for Type 2
+   *     fonts.
+   *
+   *   cvt ::
+   *     The face's original control value table.  Coordinates are expressed
+   *     in unscaled font units.  Comes from the 'cvt~' table.  Ignored for
+   *     Type 2 fonts.
+   *
+   *   interpreter ::
+   *     A pointer to the TrueType bytecode interpreters field is also used
+   *     to hook the debugger in 'ttdebug'.
+   *
+   *   extra ::
+   *     Reserved for third-party font drivers.
+   *
+   *   postscript_name ::
+   *     The PS name of the font.  Used by the postscript name service.
+   *
+   *   glyf_len ::
+   *     The length of the 'glyf' table.  Needed for malformed 'loca' tables.
+   *
+   *   glyf_offset ::
+   *     The file offset of the 'glyf' table.
+   *
+   *   is_cff2 ::
+   *     Set if the font format is CFF2.
+   *
+   *   doblend ::
+   *     A boolean which is set if the font should be blended (this is for GX
+   *     var).
+   *
+   *   blend ::
+   *     Contains the data needed to control GX variation tables (rather like
+   *     Multiple Master data).
+   *
+   *   variation_support ::
+   *     Flags that indicate which OpenType functionality related to font
+   *     variation support is present, valid, and usable.  For example,
+   *     TT_FACE_FLAG_VAR_FVAR is only set if we have at least one design
+   *     axis.
+   *
+   *   var_postscript_prefix ::
+   *     The PostScript name prefix needed for constructing a variation font
+   *     instance's PS name .
+   *
+   *   var_postscript_prefix_len ::
+   *     The length of the `var_postscript_prefix` string.
+   *
+   *   horz_metrics_size ::
+   *     The size of the 'hmtx' table.
+   *
+   *   vert_metrics_size ::
+   *     The size of the 'vmtx' table.
+   *
+   *   num_locations ::
+   *     The number of glyph locations in this TrueType file.  This should be
+   *     identical to the number of glyphs.  Ignored for Type 2 fonts.
+   *
+   *   glyph_locations ::
+   *     An array of longs.  These are offsets to glyph data within the
+   *     'glyf' table.  Ignored for Type 2 font faces.
+   *
+   *   hdmx_table ::
+   *     A pointer to the 'hdmx' table.
+   *
+   *   hdmx_table_size ::
+   *     The size of the 'hdmx' table.
+   *
+   *   hdmx_record_count ::
+   *     The number of hdmx records.
+   *
+   *   hdmx_record_size ::
+   *     The size of a single hdmx record.
+   *
+   *   hdmx_record_sizes ::
+   *     An array holding the ppem sizes available in the 'hdmx' table.
+   *
+   *   sbit_table ::
+   *     A pointer to the font's embedded bitmap location table.
+   *
+   *   sbit_table_size ::
+   *     The size of `sbit_table`.
+   *
+   *   sbit_table_type ::
+   *     The sbit table type (CBLC, sbix, etc.).
+   *
+   *   sbit_num_strikes ::
+   *     The number of sbit strikes exposed by FreeType's API, omitting
+   *     invalid strikes.
+   *
+   *   sbit_strike_map ::
+   *     A mapping between the strike indices exposed by the API and the
+   *     indices used in the font's sbit table.
+   *
+   *   cpal ::
+   *     A pointer to data related to the 'CPAL' table.  `NULL` if the table
+   *     is not available.
+   *
+   *   colr ::
+   *     A pointer to data related to the 'COLR' table.  `NULL` if the table
+   *     is not available.
+   *
+   *   kern_table ::
+   *     A pointer to the 'kern' table.
+   *
+   *   kern_table_size ::
+   *     The size of the 'kern' table.
+   *
+   *   num_kern_tables ::
+   *     The number of supported kern subtables (up to 32; FreeType
+   *     recognizes only horizontal ones with format 0).
+   *
+   *   kern_avail_bits ::
+   *     The availability status of kern subtables; if bit n is set, table n
+   *     is available.
+   *
+   *   kern_order_bits ::
+   *     The sortedness status of kern subtables; if bit n is set, table n is
+   *     sorted.
+   *
+   *   bdf ::
+   *     Data related to an SFNT font's 'bdf' table; see `tttypes.h`.
+   *
+   *   horz_metrics_offset ::
+   *     The file offset of the 'hmtx' table.
+   *
+   *   vert_metrics_offset ::
+   *     The file offset of the 'vmtx' table.
+   *
+   *   sph_found_func_flags ::
+   *     Flags identifying special bytecode functions (used by the v38
+   *     implementation of the bytecode interpreter).
+   *
+   *   sph_compatibility_mode ::
+   *     This flag is set if we are in ClearType backward compatibility mode
+   *     (used by the v38 implementation of the bytecode interpreter).
+   *
+   *   ebdt_start ::
+   *     The file offset of the sbit data table (CBDT, bdat, etc.).
+   *
+   *   ebdt_size ::
+   *     The size of the sbit data table.
+   */
   typedef struct  TT_FaceRec_
   {
     FT_FaceRec            root;
@@ -1445,11 +1590,11 @@ FT_BEGIN_HEADER
     void*                 psaux;
 
 
-    /***********************************************************************/
-    /*                                                                     */
-    /* Optional TrueType/OpenType tables                                   */
-    /*                                                                     */
-    /***********************************************************************/
+    /************************************************************************
+     *
+     * Optional TrueType/OpenType tables
+     *
+     */
 
     /* grid-fitting and scaling table */
     TT_GaspRec            gasp;                 /* the `gasp' table */
@@ -1464,12 +1609,19 @@ FT_BEGIN_HEADER
     /* postscript names table */
     TT_Post_NamesRec      postscript_names;
 
+    /* glyph colors */
+    FT_Palette_Data       palette_data;         /* since 2.10 */
+    FT_UShort             palette_index;
+    FT_Color*             palette;
+    FT_Bool               have_foreground_color;
+    FT_Color              foreground_color;
+
 
-    /***********************************************************************/
-    /*                                                                     */
-    /* TrueType-specific fields (ignored by the CFF driver)                */
-    /*                                                                     */
-    /***********************************************************************/
+    /************************************************************************
+     *
+     * TrueType-specific fields (ignored by the CFF driver)
+     *
+     */
 
     /* the font program, if any */
     FT_ULong              font_program_size;
@@ -1488,12 +1640,12 @@ FT_BEGIN_HEADER
     TT_Interpreter        interpreter;
 
 
-    /***********************************************************************/
-    /*                                                                     */
-    /* Other tables or fields. This is used by derivative formats like     */
-    /* OpenType.                                                           */
-    /*                                                                     */
-    /***********************************************************************/
+    /************************************************************************
+     *
+     * Other tables or fields. This is used by derivative formats like
+     * OpenType.
+     *
+     */
 
     FT_Generic            extra;
 
@@ -1562,40 +1714,53 @@ FT_BEGIN_HEADER
     FT_ULong              ebdt_size;
 #endif
 
+    /* since 2.10 */
+    void*                 cpal;
+    void*                 colr;
+
   } TT_FaceRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  <Struct>                                                             */
-  /*     TT_GlyphZoneRec                                                   */
-  /*                                                                       */
-  /*  <Description>                                                        */
-  /*     A glyph zone is used to load, scale and hint glyph outline        */
-  /*     coordinates.                                                      */
-  /*                                                                       */
-  /*  <Fields>                                                             */
-  /*     memory       :: A handle to the memory manager.                   */
-  /*                                                                       */
-  /*     max_points   :: The maximum size in points of the zone.           */
-  /*                                                                       */
-  /*     max_contours :: Max size in links contours of the zone.           */
-  /*                                                                       */
-  /*     n_points     :: The current number of points in the zone.         */
-  /*                                                                       */
-  /*     n_contours   :: The current number of contours in the zone.       */
-  /*                                                                       */
-  /*     org          :: The original glyph coordinates (font              */
-  /*                     units/scaled).                                    */
-  /*                                                                       */
-  /*     cur          :: The current glyph coordinates (scaled/hinted).    */
-  /*                                                                       */
-  /*     tags         :: The point control tags.                           */
-  /*                                                                       */
-  /*     contours     :: The contours end points.                          */
-  /*                                                                       */
-  /*     first_point  :: Offset of the current subglyph's first point.     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *    TT_GlyphZoneRec
+   *
+   * @description:
+   *   A glyph zone is used to load, scale and hint glyph outline
+   *   coordinates.
+   *
+   * @fields:
+   *   memory ::
+   *     A handle to the memory manager.
+   *
+   *   max_points ::
+   *     The maximum size in points of the zone.
+   *
+   *   max_contours ::
+   *     Max size in links contours of the zone.
+   *
+   *   n_points ::
+   *     The current number of points in the zone.
+   *
+   *   n_contours ::
+   *     The current number of contours in the zone.
+   *
+   *   org ::
+   *     The original glyph coordinates (font units/scaled).
+   *
+   *   cur ::
+   *     The current glyph coordinates (scaled/hinted).
+   *
+   *   tags ::
+   *     The point control tags.
+   *
+   *   contours ::
+   *     The contours end points.
+   *
+   *   first_point ::
+   *     Offset of the current subglyph's first point.
+   */
   typedef struct  TT_GlyphZoneRec_
   {
     FT_Memory   memory;
@@ -1620,14 +1785,14 @@ FT_BEGIN_HEADER
   typedef struct TT_ExecContextRec_*  TT_ExecContext;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    TT_Size                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a TrueType size object.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @type:
+   *   TT_Size
+   *
+   * @description:
+   *   A handle to a TrueType size object.
+   */
   typedef struct TT_SizeRec_*  TT_Size;
 
 
diff --git a/thirdparty/freetype/include/freetype/t1tables.h b/thirdparty/freetype/include/freetype/t1tables.h
index 3503c2616b..645e645720 100644
--- a/thirdparty/freetype/include/freetype/t1tables.h
+++ b/thirdparty/freetype/include/freetype/t1tables.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1tables.h                                                             */
-/*                                                                         */
-/*    Basic Type 1/Type 2 tables definitions and interface (specification  */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1tables.h
+ *
+ *   Basic Type 1/Type 2 tables definitions and interface (specification
+ *   only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1TABLES_H_
@@ -34,58 +34,58 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    type1_tables                                                       */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    Type 1 Tables                                                      */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    Type~1 (PostScript) specific font tables.                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains the definition of Type 1-specific tables,    */
-  /*    including structures related to other PostScript font formats.     */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    PS_FontInfoRec                                                     */
-  /*    PS_FontInfo                                                        */
-  /*    PS_PrivateRec                                                      */
-  /*    PS_Private                                                         */
-  /*                                                                       */
-  /*    CID_FaceDictRec                                                    */
-  /*    CID_FaceDict                                                       */
-  /*    CID_FaceInfoRec                                                    */
-  /*    CID_FaceInfo                                                       */
-  /*                                                                       */
-  /*    FT_Has_PS_Glyph_Names                                              */
-  /*    FT_Get_PS_Font_Info                                                */
-  /*    FT_Get_PS_Font_Private                                             */
-  /*    FT_Get_PS_Font_Value                                               */
-  /*                                                                       */
-  /*    T1_Blend_Flags                                                     */
-  /*    T1_EncodingType                                                    */
-  /*    PS_Dict_Keys                                                       */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @section:
+   *   type1_tables
+   *
+   * @title:
+   *   Type 1 Tables
+   *
+   * @abstract:
+   *   Type~1-specific font tables.
+   *
+   * @description:
+   *   This section contains the definition of Type~1-specific tables,
+   *   including structures related to other PostScript font formats.
+   *
+   * @order:
+   *   PS_FontInfoRec
+   *   PS_FontInfo
+   *   PS_PrivateRec
+   *   PS_Private
+   *
+   *   CID_FaceDictRec
+   *   CID_FaceDict
+   *   CID_FaceInfoRec
+   *   CID_FaceInfo
+   *
+   *   FT_Has_PS_Glyph_Names
+   *   FT_Get_PS_Font_Info
+   *   FT_Get_PS_Font_Private
+   *   FT_Get_PS_Font_Value
+   *
+   *   T1_Blend_Flags
+   *   T1_EncodingType
+   *   PS_Dict_Keys
+   *
+   */
 
 
   /* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */
   /* structures in order to support Multiple Master fonts.               */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_FontInfoRec                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model a Type~1 or Type~2 FontInfo dictionary.  */
-  /*    Note that for Multiple Master fonts, each instance has its own     */
-  /*    FontInfo dictionary.                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_FontInfoRec
+   *
+   * @description:
+   *   A structure used to model a Type~1 or Type~2 FontInfo dictionary.
+   *   Note that for Multiple Master fonts, each instance has its own
+   *   FontInfo dictionary.
+   */
   typedef struct  PS_FontInfoRec_
   {
     FT_String*  version;
@@ -101,40 +101,39 @@ FT_BEGIN_HEADER
   } PS_FontInfoRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_FontInfo                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a @PS_FontInfoRec structure.                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_FontInfo
+   *
+   * @description:
+   *   A handle to a @PS_FontInfoRec structure.
+   */
   typedef struct PS_FontInfoRec_*  PS_FontInfo;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    T1_FontInfo                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This type is equivalent to @PS_FontInfoRec.  It is deprecated but  */
-  /*    kept to maintain source compatibility between various versions of  */
-  /*    FreeType.                                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   T1_FontInfo
+   *
+   * @description:
+   *   This type is equivalent to @PS_FontInfoRec.  It is deprecated but kept
+   *   to maintain source compatibility between various versions of FreeType.
+   */
   typedef PS_FontInfoRec  T1_FontInfo;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_PrivateRec                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model a Type~1 or Type~2 private dictionary.   */
-  /*    Note that for Multiple Master fonts, each instance has its own     */
-  /*    Private dictionary.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_PrivateRec
+   *
+   * @description:
+   *   A structure used to model a Type~1 or Type~2 private dictionary.  Note
+   *   that for Multiple Master fonts, each instance has its own Private
+   *   dictionary.
+   */
   typedef struct  PS_PrivateRec_
   {
     FT_Int     unique_id;
@@ -176,56 +175,55 @@ FT_BEGIN_HEADER
   } PS_PrivateRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    PS_Private                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a @PS_PrivateRec structure.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   PS_Private
+   *
+   * @description:
+   *   A handle to a @PS_PrivateRec structure.
+   */
   typedef struct PS_PrivateRec_*  PS_Private;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    T1_Private                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   This type is equivalent to @PS_PrivateRec.  It is deprecated but    */
-  /*   kept to maintain source compatibility between various versions of   */
-  /*   FreeType.                                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   T1_Private
+   *
+   * @description:
+   *  This type is equivalent to @PS_PrivateRec.  It is deprecated but kept
+   *  to maintain source compatibility between various versions of FreeType.
+   */
   typedef PS_PrivateRec  T1_Private;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    T1_Blend_Flags                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A set of flags used to indicate which fields are present in a      */
-  /*    given blend dictionary (font info or private).  Used to support    */
-  /*    Multiple Masters fonts.                                            */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    T1_BLEND_UNDERLINE_POSITION ::                                     */
-  /*    T1_BLEND_UNDERLINE_THICKNESS ::                                    */
-  /*    T1_BLEND_ITALIC_ANGLE ::                                           */
-  /*    T1_BLEND_BLUE_VALUES ::                                            */
-  /*    T1_BLEND_OTHER_BLUES ::                                            */
-  /*    T1_BLEND_STANDARD_WIDTH ::                                         */
-  /*    T1_BLEND_STANDARD_HEIGHT ::                                        */
-  /*    T1_BLEND_STEM_SNAP_WIDTHS ::                                       */
-  /*    T1_BLEND_STEM_SNAP_HEIGHTS ::                                      */
-  /*    T1_BLEND_BLUE_SCALE ::                                             */
-  /*    T1_BLEND_BLUE_SHIFT ::                                             */
-  /*    T1_BLEND_FAMILY_BLUES ::                                           */
-  /*    T1_BLEND_FAMILY_OTHER_BLUES ::                                     */
-  /*    T1_BLEND_FORCE_BOLD ::                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   T1_Blend_Flags
+   *
+   * @description:
+   *   A set of flags used to indicate which fields are present in a given
+   *   blend dictionary (font info or private).  Used to support Multiple
+   *   Masters fonts.
+   *
+   * @values:
+   *   T1_BLEND_UNDERLINE_POSITION ::
+   *   T1_BLEND_UNDERLINE_THICKNESS ::
+   *   T1_BLEND_ITALIC_ANGLE ::
+   *   T1_BLEND_BLUE_VALUES ::
+   *   T1_BLEND_OTHER_BLUES ::
+   *   T1_BLEND_STANDARD_WIDTH ::
+   *   T1_BLEND_STANDARD_HEIGHT ::
+   *   T1_BLEND_STEM_SNAP_WIDTHS ::
+   *   T1_BLEND_STEM_SNAP_HEIGHTS ::
+   *   T1_BLEND_BLUE_SCALE ::
+   *   T1_BLEND_BLUE_SHIFT ::
+   *   T1_BLEND_FAMILY_BLUES ::
+   *   T1_BLEND_FAMILY_OTHER_BLUES ::
+   *   T1_BLEND_FORCE_BOLD ::
+   */
   typedef enum  T1_Blend_Flags_
   {
     /* required fields in a FontInfo blend dictionary */
@@ -252,7 +250,7 @@ FT_BEGIN_HEADER
 
 
   /* these constants are deprecated; use the corresponding */
-  /* `T1_Blend_Flags' values instead                       */
+  /* `T1_Blend_Flags` values instead                       */
 #define t1_blend_underline_position   T1_BLEND_UNDERLINE_POSITION
 #define t1_blend_underline_thickness  T1_BLEND_UNDERLINE_THICKNESS
 #define t1_blend_italic_angle         T1_BLEND_ITALIC_ANGLE
@@ -330,14 +328,23 @@ FT_BEGIN_HEADER
   typedef PS_BlendRec  T1_Blend;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_FaceDictRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to represent data in a CID top-level dictionary.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CID_FaceDictRec
+   *
+   * @description:
+   *   A structure used to represent data in a CID top-level dictionary.  In
+   *   most cases, they are part of the font's '/FDArray' array.  Within a
+   *   CID font file, such (internal) subfont dictionaries are enclosed by
+   *   '%ADOBeginFontDict' and '%ADOEndFontDict' comments.
+   *
+   *   Note that `CID_FaceDictRec` misses a field for the '/FontName'
+   *   keyword, specifying the subfont's name (the top-level font name is
+   *   given by the '/CIDFontName' keyword).  This is an oversight, but it
+   *   doesn't limit the 'cid' font module's functionality because FreeType
+   *   neither needs this entry nor gives access to CID subfonts.
+   */
   typedef struct  CID_FaceDictRec_
   {
     PS_PrivateRec  private_dict;
@@ -345,8 +352,8 @@ FT_BEGIN_HEADER
     FT_UInt        len_buildchar;
     FT_Fixed       forcebold_threshold;
     FT_Pos         stroke_width;
-    FT_Fixed       expansion_factor;
-
+    FT_Fixed       expansion_factor;   /* this is a duplicate of           */
+                                       /* `private_dict->expansion_factor' */
     FT_Byte        paint_type;
     FT_Byte        font_type;
     FT_Matrix      font_matrix;
@@ -359,38 +366,38 @@ FT_BEGIN_HEADER
   } CID_FaceDictRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_FaceDict                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a @CID_FaceDictRec structure.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CID_FaceDict
+   *
+   * @description:
+   *   A handle to a @CID_FaceDictRec structure.
+   */
   typedef struct CID_FaceDictRec_*  CID_FaceDict;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_FontDict                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This type is equivalent to @CID_FaceDictRec.  It is deprecated but */
-  /*    kept to maintain source compatibility between various versions of  */
-  /*    FreeType.                                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CID_FontDict
+   *
+   * @description:
+   *   This type is equivalent to @CID_FaceDictRec.  It is deprecated but
+   *   kept to maintain source compatibility between various versions of
+   *   FreeType.
+   */
   typedef CID_FaceDictRec  CID_FontDict;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_FaceInfoRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to represent CID Face information.                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CID_FaceInfoRec
+   *
+   * @description:
+   *   A structure used to represent CID Face information.
+   */
   typedef struct  CID_FaceInfoRec_
   {
     FT_String*      cid_font_name;
@@ -421,47 +428,45 @@ FT_BEGIN_HEADER
   } CID_FaceInfoRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_FaceInfo                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a @CID_FaceInfoRec structure.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CID_FaceInfo
+   *
+   * @description:
+   *   A handle to a @CID_FaceInfoRec structure.
+   */
   typedef struct CID_FaceInfoRec_*  CID_FaceInfo;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_Info                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*   This type is equivalent to @CID_FaceInfoRec.  It is deprecated but  */
-  /*   kept to maintain source compatibility between various versions of   */
-  /*   FreeType.                                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   CID_Info
+   *
+   * @description:
+   *  This type is equivalent to @CID_FaceInfoRec.  It is deprecated but kept
+   *  to maintain source compatibility between various versions of FreeType.
+   */
   typedef CID_FaceInfoRec  CID_Info;
 
 
-  /************************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Has_PS_Glyph_Names
    *
    * @description:
-   *    Return true if a given face provides reliable PostScript glyph
-   *    names.  This is similar to using the @FT_HAS_GLYPH_NAMES macro,
-   *    except that certain fonts (mostly TrueType) contain incorrect
-   *    glyph name tables.
+   *    Return true if a given face provides reliable PostScript glyph names.
+   *    This is similar to using the @FT_HAS_GLYPH_NAMES macro, except that
+   *    certain fonts (mostly TrueType) contain incorrect glyph name tables.
    *
    *    When this function returns true, the caller is sure that the glyph
    *    names returned by @FT_Get_Glyph_Name are reliable.
    *
    * @input:
    *    face ::
-   *       face handle
+   *      face handle
    *
    * @return:
    *    Boolean.  True if glyph names are reliable.
@@ -471,7 +476,7 @@ FT_BEGIN_HEADER
   FT_Has_PS_Glyph_Names( FT_Face  face );
 
 
-  /************************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_PS_Font_Info
@@ -482,22 +487,22 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    face ::
-   *       PostScript face handle.
+   *      PostScript face handle.
    *
    * @output:
    *    afont_info ::
-   *       Output font info structure pointer.
+   *      Output font info structure pointer.
    *
    * @return:
    *    FreeType error code.  0~means success.
    *
    * @note:
-   *    String pointers within the @PS_FontInfoRec structure are owned by
-   *    the face and don't need to be freed by the caller.  Missing entries
-   *    in the font's FontInfo dictionary are represented by NULL pointers.
+   *    String pointers within the @PS_FontInfoRec structure are owned by the
+   *    face and don't need to be freed by the caller.  Missing entries in
+   *    the font's FontInfo dictionary are represented by `NULL` pointers.
    *
    *    If the font's format is not PostScript-based, this function will
-   *    return the `FT_Err_Invalid_Argument' error code.
+   *    return the `FT_Err_Invalid_Argument` error code.
    *
    */
   FT_EXPORT( FT_Error )
@@ -505,7 +510,7 @@ FT_BEGIN_HEADER
                        PS_FontInfo  afont_info );
 
 
-  /************************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_PS_Font_Private
@@ -516,11 +521,11 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    face ::
-   *       PostScript face handle.
+   *      PostScript face handle.
    *
    * @output:
    *    afont_private ::
-   *       Output private dictionary structure pointer.
+   *      Output private dictionary structure pointer.
    *
    * @return:
    *    FreeType error code.  0~means success.
@@ -530,7 +535,7 @@ FT_BEGIN_HEADER
    *    the face and don't need to be freed by the caller.
    *
    *    If the font's format is not PostScript-based, this function returns
-   *    the `FT_Err_Invalid_Argument' error code.
+   *    the `FT_Err_Invalid_Argument` error code.
    *
    */
   FT_EXPORT( FT_Error )
@@ -538,25 +543,24 @@ FT_BEGIN_HEADER
                           PS_Private  afont_private );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    T1_EncodingType                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration describing the `Encoding' entry in a Type 1         */
-  /*    dictionary.                                                        */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    T1_ENCODING_TYPE_NONE ::                                           */
-  /*    T1_ENCODING_TYPE_ARRAY ::                                          */
-  /*    T1_ENCODING_TYPE_STANDARD ::                                       */
-  /*    T1_ENCODING_TYPE_ISOLATIN1 ::                                      */
-  /*    T1_ENCODING_TYPE_EXPERT ::                                         */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.4.8                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   T1_EncodingType
+   *
+   * @description:
+   *   An enumeration describing the 'Encoding' entry in a Type 1 dictionary.
+   *
+   * @values:
+   *   T1_ENCODING_TYPE_NONE ::
+   *   T1_ENCODING_TYPE_ARRAY ::
+   *   T1_ENCODING_TYPE_STANDARD ::
+   *   T1_ENCODING_TYPE_ISOLATIN1 ::
+   *   T1_ENCODING_TYPE_EXPERT ::
+   *
+   * @since:
+   *   2.4.8
+   */
   typedef enum  T1_EncodingType_
   {
     T1_ENCODING_TYPE_NONE = 0,
@@ -568,66 +572,66 @@ FT_BEGIN_HEADER
   } T1_EncodingType;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    PS_Dict_Keys                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration used in calls to @FT_Get_PS_Font_Value to identify  */
-  /*    the Type~1 dictionary entry to retrieve.                           */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    PS_DICT_FONT_TYPE ::                                               */
-  /*    PS_DICT_FONT_MATRIX ::                                             */
-  /*    PS_DICT_FONT_BBOX ::                                               */
-  /*    PS_DICT_PAINT_TYPE ::                                              */
-  /*    PS_DICT_FONT_NAME ::                                               */
-  /*    PS_DICT_UNIQUE_ID ::                                               */
-  /*    PS_DICT_NUM_CHAR_STRINGS ::                                        */
-  /*    PS_DICT_CHAR_STRING_KEY ::                                         */
-  /*    PS_DICT_CHAR_STRING ::                                             */
-  /*    PS_DICT_ENCODING_TYPE ::                                           */
-  /*    PS_DICT_ENCODING_ENTRY ::                                          */
-  /*    PS_DICT_NUM_SUBRS ::                                               */
-  /*    PS_DICT_SUBR ::                                                    */
-  /*    PS_DICT_STD_HW ::                                                  */
-  /*    PS_DICT_STD_VW ::                                                  */
-  /*    PS_DICT_NUM_BLUE_VALUES ::                                         */
-  /*    PS_DICT_BLUE_VALUE ::                                              */
-  /*    PS_DICT_BLUE_FUZZ ::                                               */
-  /*    PS_DICT_NUM_OTHER_BLUES ::                                         */
-  /*    PS_DICT_OTHER_BLUE ::                                              */
-  /*    PS_DICT_NUM_FAMILY_BLUES ::                                        */
-  /*    PS_DICT_FAMILY_BLUE ::                                             */
-  /*    PS_DICT_NUM_FAMILY_OTHER_BLUES ::                                  */
-  /*    PS_DICT_FAMILY_OTHER_BLUE ::                                       */
-  /*    PS_DICT_BLUE_SCALE ::                                              */
-  /*    PS_DICT_BLUE_SHIFT ::                                              */
-  /*    PS_DICT_NUM_STEM_SNAP_H ::                                         */
-  /*    PS_DICT_STEM_SNAP_H ::                                             */
-  /*    PS_DICT_NUM_STEM_SNAP_V ::                                         */
-  /*    PS_DICT_STEM_SNAP_V ::                                             */
-  /*    PS_DICT_FORCE_BOLD ::                                              */
-  /*    PS_DICT_RND_STEM_UP ::                                             */
-  /*    PS_DICT_MIN_FEATURE ::                                             */
-  /*    PS_DICT_LEN_IV ::                                                  */
-  /*    PS_DICT_PASSWORD ::                                                */
-  /*    PS_DICT_LANGUAGE_GROUP ::                                          */
-  /*    PS_DICT_VERSION ::                                                 */
-  /*    PS_DICT_NOTICE ::                                                  */
-  /*    PS_DICT_FULL_NAME ::                                               */
-  /*    PS_DICT_FAMILY_NAME ::                                             */
-  /*    PS_DICT_WEIGHT ::                                                  */
-  /*    PS_DICT_IS_FIXED_PITCH ::                                          */
-  /*    PS_DICT_UNDERLINE_POSITION ::                                      */
-  /*    PS_DICT_UNDERLINE_THICKNESS ::                                     */
-  /*    PS_DICT_FS_TYPE ::                                                 */
-  /*    PS_DICT_ITALIC_ANGLE ::                                            */
-  /*                                                                       */
-  /* <Since>                                                               */
-  /*    2.4.8                                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   PS_Dict_Keys
+   *
+   * @description:
+   *   An enumeration used in calls to @FT_Get_PS_Font_Value to identify the
+   *   Type~1 dictionary entry to retrieve.
+   *
+   * @values:
+   *   PS_DICT_FONT_TYPE ::
+   *   PS_DICT_FONT_MATRIX ::
+   *   PS_DICT_FONT_BBOX ::
+   *   PS_DICT_PAINT_TYPE ::
+   *   PS_DICT_FONT_NAME ::
+   *   PS_DICT_UNIQUE_ID ::
+   *   PS_DICT_NUM_CHAR_STRINGS ::
+   *   PS_DICT_CHAR_STRING_KEY ::
+   *   PS_DICT_CHAR_STRING ::
+   *   PS_DICT_ENCODING_TYPE ::
+   *   PS_DICT_ENCODING_ENTRY ::
+   *   PS_DICT_NUM_SUBRS ::
+   *   PS_DICT_SUBR ::
+   *   PS_DICT_STD_HW ::
+   *   PS_DICT_STD_VW ::
+   *   PS_DICT_NUM_BLUE_VALUES ::
+   *   PS_DICT_BLUE_VALUE ::
+   *   PS_DICT_BLUE_FUZZ ::
+   *   PS_DICT_NUM_OTHER_BLUES ::
+   *   PS_DICT_OTHER_BLUE ::
+   *   PS_DICT_NUM_FAMILY_BLUES ::
+   *   PS_DICT_FAMILY_BLUE ::
+   *   PS_DICT_NUM_FAMILY_OTHER_BLUES ::
+   *   PS_DICT_FAMILY_OTHER_BLUE ::
+   *   PS_DICT_BLUE_SCALE ::
+   *   PS_DICT_BLUE_SHIFT ::
+   *   PS_DICT_NUM_STEM_SNAP_H ::
+   *   PS_DICT_STEM_SNAP_H ::
+   *   PS_DICT_NUM_STEM_SNAP_V ::
+   *   PS_DICT_STEM_SNAP_V ::
+   *   PS_DICT_FORCE_BOLD ::
+   *   PS_DICT_RND_STEM_UP ::
+   *   PS_DICT_MIN_FEATURE ::
+   *   PS_DICT_LEN_IV ::
+   *   PS_DICT_PASSWORD ::
+   *   PS_DICT_LANGUAGE_GROUP ::
+   *   PS_DICT_VERSION ::
+   *   PS_DICT_NOTICE ::
+   *   PS_DICT_FULL_NAME ::
+   *   PS_DICT_FAMILY_NAME ::
+   *   PS_DICT_WEIGHT ::
+   *   PS_DICT_IS_FIXED_PITCH ::
+   *   PS_DICT_UNDERLINE_POSITION ::
+   *   PS_DICT_UNDERLINE_THICKNESS ::
+   *   PS_DICT_FS_TYPE ::
+   *   PS_DICT_ITALIC_ANGLE ::
+   *
+   * @since:
+   *   2.4.8
+   */
   typedef enum  PS_Dict_Keys_
   {
     /* conventionally in the font dictionary */
@@ -687,7 +691,7 @@ FT_BEGIN_HEADER
   } PS_Dict_Keys;
 
 
-  /************************************************************************
+  /**************************************************************************
    *
    * @function:
    *    FT_Get_PS_Font_Value
@@ -697,57 +701,57 @@ FT_BEGIN_HEADER
    *
    * @input:
    *    face ::
-   *       PostScript face handle.
+   *      PostScript face handle.
    *
    *    key ::
-   *       An enumeration value representing the dictionary key to retrieve.
+   *      An enumeration value representing the dictionary key to retrieve.
    *
    *    idx ::
-   *       For array values, this specifies the index to be returned.
+   *      For array values, this specifies the index to be returned.
    *
    *    value ::
-   *       A pointer to memory into which to write the value.
+   *      A pointer to memory into which to write the value.
    *
    *    valen_len ::
-   *       The size, in bytes, of the memory supplied for the value.
+   *      The size, in bytes, of the memory supplied for the value.
    *
    * @output:
    *    value ::
-   *       The value matching the above key, if it exists.
+   *      The value matching the above key, if it exists.
    *
    * @return:
-   *    The amount of memory (in bytes) required to hold the requested
-   *    value (if it exists, -1 otherwise).
+   *    The amount of memory (in bytes) required to hold the requested value
+   *    (if it exists, -1 otherwise).
    *
    * @note:
    *    The values returned are not pointers into the internal structures of
-   *    the face, but are `fresh' copies, so that the memory containing them
+   *    the face, but are 'fresh' copies, so that the memory containing them
    *    belongs to the calling application.  This also enforces the
-   *    `read-only' nature of these values, i.e., this function cannot be
+   *    'read-only' nature of these values, i.e., this function cannot be
    *    used to manipulate the face.
    *
-   *    `value' is a void pointer because the values returned can be of
+   *    `value` is a void pointer because the values returned can be of
    *    various types.
    *
-   *    If either `value' is NULL or `value_len' is too small, just the
+   *    If either `value` is `NULL` or `value_len` is too small, just the
    *    required memory size for the requested entry is returned.
    *
-   *    The `idx' parameter is used, not only to retrieve elements of, for
+   *    The `idx` parameter is used, not only to retrieve elements of, for
    *    example, the FontMatrix or FontBBox, but also to retrieve name keys
    *    from the CharStrings dictionary, and the charstrings themselves.  It
    *    is ignored for atomic values.
    *
-   *    PS_DICT_BLUE_SCALE returns a value that is scaled up by 1000.  To
-   *    get the value as in the font stream, you need to divide by
-   *    65536000.0 (to remove the FT_Fixed scale, and the x1000 scale).
+   *    `PS_DICT_BLUE_SCALE` returns a value that is scaled up by 1000.  To
+   *    get the value as in the font stream, you need to divide by 65536000.0
+   *    (to remove the FT_Fixed scale, and the x1000 scale).
    *
    *    IMPORTANT: Only key/value pairs read by the FreeType interpreter can
-   *    be retrieved.  So, for example, PostScript procedures such as NP,
-   *    ND, and RD are not available.  Arbitrary keys are, obviously, not be
+   *    be retrieved.  So, for example, PostScript procedures such as NP, ND,
+   *    and RD are not available.  Arbitrary keys are, obviously, not be
    *    available either.
    *
    *    If the font's format is not PostScript-based, this function returns
-   *    the `FT_Err_Invalid_Argument' error code.
+   *    the `FT_Err_Invalid_Argument` error code.
    *
    * @since:
    *    2.4.8
diff --git a/thirdparty/freetype/include/freetype/ttnameid.h b/thirdparty/freetype/include/freetype/ttnameid.h
index 8605183dc7..cc677de75a 100644
--- a/thirdparty/freetype/include/freetype/ttnameid.h
+++ b/thirdparty/freetype/include/freetype/ttnameid.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttnameid.h                                                             */
-/*                                                                         */
-/*    TrueType name ID definitions (specification only).                   */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttnameid.h
+ *
+ *   TrueType name ID definitions (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTNAMEID_H_
@@ -26,53 +26,54 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    truetype_tables                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   truetype_tables
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Possible values for the `platform' identifier code in the name        */
-  /* records of an SFNT `name' table.                                      */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Possible values for the 'platform' identifier code in the name records
+   * of an SFNT 'name' table.
+   *
+   */
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_PLATFORM_XXX
    *
    * @description:
-   *   A list of valid values for the `platform_id' identifier code in
+   *   A list of valid values for the `platform_id` identifier code in
    *   @FT_CharMapRec and @FT_SfntName structures.
    *
    * @values:
    *   TT_PLATFORM_APPLE_UNICODE ::
    *     Used by Apple to indicate a Unicode character map and/or name entry.
-   *     See @TT_APPLE_ID_XXX for corresponding `encoding_id' values.  Note
+   *     See @TT_APPLE_ID_XXX for corresponding `encoding_id` values.  Note
    *     that name entries in this format are coded as big-endian UCS-2
    *     character codes _only_.
    *
    *   TT_PLATFORM_MACINTOSH ::
-   *     Used by Apple to indicate a MacOS-specific charmap and/or name entry.
-   *     See @TT_MAC_ID_XXX for corresponding `encoding_id' values.  Note that
-   *     most TrueType fonts contain an Apple roman charmap to be usable on
-   *     MacOS systems (even if they contain a Microsoft charmap as well).
+   *     Used by Apple to indicate a MacOS-specific charmap and/or name
+   *     entry.  See @TT_MAC_ID_XXX for corresponding `encoding_id` values.
+   *     Note that most TrueType fonts contain an Apple roman charmap to be
+   *     usable on MacOS systems (even if they contain a Microsoft charmap as
+   *     well).
    *
    *   TT_PLATFORM_ISO ::
-   *     This value was used to specify ISO/IEC 10646 charmaps.  It is however
-   *     now deprecated.  See @TT_ISO_ID_XXX for a list of corresponding
-   *     `encoding_id' values.
+   *     This value was used to specify ISO/IEC 10646 charmaps.  It is
+   *     however now deprecated.  See @TT_ISO_ID_XXX for a list of
+   *     corresponding `encoding_id` values.
    *
    *   TT_PLATFORM_MICROSOFT ::
    *     Used by Microsoft to indicate Windows-specific charmaps.  See
-   *     @TT_MS_ID_XXX for a list of corresponding `encoding_id' values.
+   *     @TT_MS_ID_XXX for a list of corresponding `encoding_id` values.
    *     Note that most fonts contain a Unicode charmap using
-   *     (TT_PLATFORM_MICROSOFT, @TT_MS_ID_UNICODE_CS).
+   *     (`TT_PLATFORM_MICROSOFT`, @TT_MS_ID_UNICODE_CS).
    *
    *   TT_PLATFORM_CUSTOM ::
    *     Used to indicate application-specific charmaps.
@@ -91,13 +92,13 @@ FT_BEGIN_HEADER
 #define TT_PLATFORM_ADOBE          7 /* artificial */
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_APPLE_ID_XXX
    *
    * @description:
-   *   A list of valid values for the `encoding_id' for
+   *   A list of valid values for the `encoding_id` for
    *   @TT_PLATFORM_APPLE_UNICODE charmaps and name entries.
    *
    * @values:
@@ -117,8 +118,8 @@ FT_BEGIN_HEADER
    *     Unicode 3.1 and beyond, using UTF-32.
    *
    *   TT_APPLE_ID_VARIANT_SELECTOR ::
-   *     From Adobe, not Apple.  Not a normal cmap.  Specifies variations
-   *     on a real cmap.
+   *     From Adobe, not Apple.  Not a normal cmap.  Specifies variations on
+   *     a real cmap.
    *
    *   TT_APPLE_ID_FULL_UNICODE ::
    *     Used for fallback fonts that provide complete Unicode coverage with
@@ -134,13 +135,13 @@ FT_BEGIN_HEADER
 #define TT_APPLE_ID_FULL_UNICODE      6 /* used with type 13 cmaps       */
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_MAC_ID_XXX
    *
    * @description:
-   *   A list of valid values for the `encoding_id' for
+   *   A list of valid values for the `encoding_id` for
    *   @TT_PLATFORM_MACINTOSH charmaps and name entries.
    */
 
@@ -180,14 +181,14 @@ FT_BEGIN_HEADER
 #define TT_MAC_ID_UNINTERP             32
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_ISO_ID_XXX
    *
    * @description:
-   *   A list of valid values for the `encoding_id' for
-   *   @TT_PLATFORM_ISO charmaps and name entries.
+   *   A list of valid values for the `encoding_id` for @TT_PLATFORM_ISO
+   *   charmaps and name entries.
    *
    *   Their use is now deprecated.
    *
@@ -205,13 +206,13 @@ FT_BEGIN_HEADER
 #define TT_ISO_ID_8859_1      2
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_MS_ID_XXX
    *
    * @description:
-   *   A list of valid values for the `encoding_id' for
+   *   A list of valid values for the `encoding_id` for
    *   @TT_PLATFORM_MICROSOFT charmaps and name entries.
    *
    * @values:
@@ -219,16 +220,15 @@ FT_BEGIN_HEADER
    *     Microsoft symbol encoding.  See @FT_ENCODING_MS_SYMBOL.
    *
    *   TT_MS_ID_UNICODE_CS ::
-   *     Microsoft WGL4 charmap, matching Unicode.  See
-   *     @FT_ENCODING_UNICODE.
+   *     Microsoft WGL4 charmap, matching Unicode.  See @FT_ENCODING_UNICODE.
    *
    *   TT_MS_ID_SJIS ::
    *     Shift JIS Japanese encoding.  See @FT_ENCODING_SJIS.
    *
    *   TT_MS_ID_PRC ::
    *     Chinese encodings as used in the People's Republic of China (PRC).
-   *     This means the encodings GB~2312 and its supersets GBK and
-   *     GB~18030.  See @FT_ENCODING_PRC.
+   *     This means the encodings GB~2312 and its supersets GBK and GB~18030.
+   *     See @FT_ENCODING_PRC.
    *
    *   TT_MS_ID_BIG_5 ::
    *     Traditional Chinese as used in Taiwan and Hong Kong.  See
@@ -258,14 +258,14 @@ FT_BEGIN_HEADER
 #define TT_MS_ID_GB2312  TT_MS_ID_PRC
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_ADOBE_ID_XXX
    *
    * @description:
-   *   A list of valid values for the `encoding_id' for
-   *   @TT_PLATFORM_ADOBE charmaps.  This is a FreeType-specific extension!
+   *   A list of valid values for the `encoding_id` for @TT_PLATFORM_ADOBE
+   *   charmaps.  This is a FreeType-specific extension!
    *
    * @values:
    *   TT_ADOBE_ID_STANDARD ::
@@ -284,14 +284,14 @@ FT_BEGIN_HEADER
 #define TT_ADOBE_ID_LATIN_1   3
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_MAC_LANGID_XXX
    *
    * @description:
    *   Possible values of the language identifier field in the name records
-   *   of the SFNT `name' table if the `platform' identifier code is
+   *   of the SFNT 'name' table if the 'platform' identifier code is
    *   @TT_PLATFORM_MACINTOSH.  These values are also used as return values
    *   for function @FT_Get_CMap_Language_ID.
    *
@@ -424,24 +424,24 @@ FT_BEGIN_HEADER
 #define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT    150
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_MS_LANGID_XXX
    *
    * @description:
    *   Possible values of the language identifier field in the name records
-   *   of the SFNT `name' table if the `platform' identifier code is
+   *   of the SFNT 'name' table if the 'platform' identifier code is
    *   @TT_PLATFORM_MICROSOFT.  These values are also used as return values
    *   for function @FT_Get_CMap_Language_ID.
    *
    *   The canonical source for Microsoft's IDs is
    *
-   *     https://www.microsoft.com/globaldev/reference/lcid-all.mspx ,
+   *     https://docs.microsoft.com/en-us/windows/desktop/Intl/language-identifier-constants-and-strings ,
    *
    *   however, we only provide macros for language identifiers present in
    *   the OpenType specification: Microsoft has abandoned the concept of
-   *   LCIDs (language code identifiers), and format~1 of the `name' table
+   *   LCIDs (language code identifiers), and format~1 of the 'name' table
    *   provides a better mechanism for languages not covered here.
    *
    *   More legacy values not listed in the reference can be found in the
@@ -780,14 +780,14 @@ FT_BEGIN_HEADER
           TT_MS_LANGID_UIGHUR_PRC
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_NAME_ID_XXX
    *
    * @description:
-   *   Possible values of the `name' identifier field in the name records of
-   *   an SFNT `name' table.  These values are platform independent.
+   *   Possible values of the 'name' identifier field in the name records of
+   *   an SFNT 'name' table.  These values are platform independent.
    */
 
 #define TT_NAME_ID_COPYRIGHT              0
@@ -834,14 +834,14 @@ FT_BEGIN_HEADER
 #define TT_NAME_ID_PREFERRED_SUBFAMILY  TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY
 
 
-  /***********************************************************************
+  /**************************************************************************
    *
    * @enum:
    *   TT_UCR_XXX
    *
    * @description:
-   *   Possible bit mask values for the `ulUnicodeRangeX' fields in an SFNT
-   *   `OS/2' table.
+   *   Possible bit mask values for the `ulUnicodeRangeX` fields in an SFNT
+   *   'OS/2' table.
    */
 
   /* ulUnicodeRange1 */
diff --git a/thirdparty/freetype/include/freetype/tttables.h b/thirdparty/freetype/include/freetype/tttables.h
index ce6a61779c..d04f810218 100644
--- a/thirdparty/freetype/include/freetype/tttables.h
+++ b/thirdparty/freetype/include/freetype/tttables.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  tttables.h                                                             */
-/*                                                                         */
-/*    Basic SFNT/TrueType tables definitions and interface                 */
-/*    (specification only).                                                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * tttables.h
+ *
+ *   Basic SFNT/TrueType tables definitions and interface
+ *   (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTTABLES_H_
@@ -33,53 +33,55 @@
 
 FT_BEGIN_HEADER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    truetype_tables                                                    */
-  /*                                                                       */
-  /* <Title>                                                               */
-  /*    TrueType Tables                                                    */
-  /*                                                                       */
-  /* <Abstract>                                                            */
-  /*    TrueType specific table types and functions.                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This section contains definitions of some basic tables specific to */
-  /*    TrueType and OpenType as well as some routines used to access and  */
-  /*    process them.                                                      */
-  /*                                                                       */
-  /* <Order>                                                               */
-  /*    TT_Header                                                          */
-  /*    TT_HoriHeader                                                      */
-  /*    TT_VertHeader                                                      */
-  /*    TT_OS2                                                             */
-  /*    TT_Postscript                                                      */
-  /*    TT_PCLT                                                            */
-  /*    TT_MaxProfile                                                      */
-  /*                                                                       */
-  /*    FT_Sfnt_Tag                                                        */
-  /*    FT_Get_Sfnt_Table                                                  */
-  /*    FT_Load_Sfnt_Table                                                 */
-  /*    FT_Sfnt_Table_Info                                                 */
-  /*                                                                       */
-  /*    FT_Get_CMap_Language_ID                                            */
-  /*    FT_Get_CMap_Format                                                 */
-  /*                                                                       */
-  /*    FT_PARAM_TAG_UNPATENTED_HINTING                                    */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_Header                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a TrueType font header table.  All fields     */
-  /*    follow the OpenType specification.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @section:
+   *   truetype_tables
+   *
+   * @title:
+   *   TrueType Tables
+   *
+   * @abstract:
+   *   TrueType-specific table types and functions.
+   *
+   * @description:
+   *   This section contains definitions of some basic tables specific to
+   *   TrueType and OpenType as well as some routines used to access and
+   *   process them.
+   *
+   * @order:
+   *   TT_Header
+   *   TT_HoriHeader
+   *   TT_VertHeader
+   *   TT_OS2
+   *   TT_Postscript
+   *   TT_PCLT
+   *   TT_MaxProfile
+   *
+   *   FT_Sfnt_Tag
+   *   FT_Get_Sfnt_Table
+   *   FT_Load_Sfnt_Table
+   *   FT_Sfnt_Table_Info
+   *
+   *   FT_Get_CMap_Language_ID
+   *   FT_Get_CMap_Format
+   *
+   *   FT_PARAM_TAG_UNPATENTED_HINTING
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_Header
+   *
+   * @description:
+   *   A structure to model a TrueType font header table.  All fields follow
+   *   the OpenType specification.  The 64-bit timestamps are stored in
+   *   two-element arrays `Created` and `Modified`, first the upper then
+   *   the lower 32~bits.
+   */
   typedef struct  TT_Header_
   {
     FT_Fixed   Table_Version;
@@ -91,8 +93,8 @@ FT_BEGIN_HEADER
     FT_UShort  Flags;
     FT_UShort  Units_Per_EM;
 
-    FT_Long    Created [2];
-    FT_Long    Modified[2];
+    FT_ULong   Created [2];
+    FT_ULong   Modified[2];
 
     FT_Short   xMin;
     FT_Short   yMin;
@@ -109,93 +111,93 @@ FT_BEGIN_HEADER
   } TT_Header;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_HoriHeader                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a TrueType horizontal header, the `hhea'      */
-  /*    table, as well as the corresponding horizontal metrics table,      */
-  /*    `hmtx'.                                                            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    Version                :: The table version.                       */
-  /*                                                                       */
-  /*    Ascender               :: The font's ascender, i.e., the distance  */
-  /*                              from the baseline to the top-most of all */
-  /*                              glyph points found in the font.          */
-  /*                                                                       */
-  /*                              This value is invalid in many fonts, as  */
-  /*                              it is usually set by the font designer,  */
-  /*                              and often reflects only a portion of the */
-  /*                              glyphs found in the font (maybe ASCII).  */
-  /*                                                                       */
-  /*                              You should use the `sTypoAscender' field */
-  /*                              of the `OS/2' table instead if you want  */
-  /*                              the correct one.                         */
-  /*                                                                       */
-  /*    Descender              :: The font's descender, i.e., the distance */
-  /*                              from the baseline to the bottom-most of  */
-  /*                              all glyph points found in the font.  It  */
-  /*                              is negative.                             */
-  /*                                                                       */
-  /*                              This value is invalid in many fonts, as  */
-  /*                              it is usually set by the font designer,  */
-  /*                              and often reflects only a portion of the */
-  /*                              glyphs found in the font (maybe ASCII).  */
-  /*                                                                       */
-  /*                              You should use the `sTypoDescender'      */
-  /*                              field of the `OS/2' table instead if you */
-  /*                              want the correct one.                    */
-  /*                                                                       */
-  /*    Line_Gap               :: The font's line gap, i.e., the distance  */
-  /*                              to add to the ascender and descender to  */
-  /*                              get the BTB, i.e., the                   */
-  /*                              baseline-to-baseline distance for the    */
-  /*                              font.                                    */
-  /*                                                                       */
-  /*    advance_Width_Max      :: This field is the maximum of all advance */
-  /*                              widths found in the font.  It can be     */
-  /*                              used to compute the maximum width of an  */
-  /*                              arbitrary string of text.                */
-  /*                                                                       */
-  /*    min_Left_Side_Bearing  :: The minimum left side bearing of all     */
-  /*                              glyphs within the font.                  */
-  /*                                                                       */
-  /*    min_Right_Side_Bearing :: The minimum right side bearing of all    */
-  /*                              glyphs within the font.                  */
-  /*                                                                       */
-  /*    xMax_Extent            :: The maximum horizontal extent (i.e., the */
-  /*                              `width' of a glyph's bounding box) for   */
-  /*                              all glyphs in the font.                  */
-  /*                                                                       */
-  /*    caret_Slope_Rise       :: The rise coefficient of the cursor's     */
-  /*                              slope of the cursor (slope=rise/run).    */
-  /*                                                                       */
-  /*    caret_Slope_Run        :: The run coefficient of the cursor's      */
-  /*                              slope.                                   */
-  /*                                                                       */
-  /*    caret_Offset           :: The cursor's offset for slanted fonts.   */
-  /*                                                                       */
-  /*    Reserved               :: 8~reserved bytes.                        */
-  /*                                                                       */
-  /*    metric_Data_Format     :: Always~0.                                */
-  /*                                                                       */
-  /*    number_Of_HMetrics     :: Number of HMetrics entries in the `hmtx' */
-  /*                              table -- this value can be smaller than  */
-  /*                              the total number of glyphs in the font.  */
-  /*                                                                       */
-  /*    long_metrics           :: A pointer into the `hmtx' table.         */
-  /*                                                                       */
-  /*    short_metrics          :: A pointer into the `hmtx' table.         */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    For an OpenType variation font, the values of the following fields */
-  /*    can change after a call to @FT_Set_Var_Design_Coordinates (and     */
-  /*    friends) if the font contains an `MVAR' table: `caret_Slope_Rise', */
-  /*    `caret_Slope_Run', and `caret_Offset'.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_HoriHeader
+   *
+   * @description:
+   *   A structure to model a TrueType horizontal header, the 'hhea' table,
+   *   as well as the corresponding horizontal metrics table, 'hmtx'.
+   *
+   * @fields:
+   *   Version ::
+   *     The table version.
+   *
+   *   Ascender ::
+   *     The font's ascender, i.e., the distance from the baseline to the
+   *     top-most of all glyph points found in the font.
+   *
+   *     This value is invalid in many fonts, as it is usually set by the
+   *     font designer, and often reflects only a portion of the glyphs found
+   *     in the font (maybe ASCII).
+   *
+   *     You should use the `sTypoAscender` field of the 'OS/2' table instead
+   *     if you want the correct one.
+   *
+   *   Descender ::
+   *     The font's descender, i.e., the distance from the baseline to the
+   *     bottom-most of all glyph points found in the font.  It is negative.
+   *
+   *     This value is invalid in many fonts, as it is usually set by the
+   *     font designer, and often reflects only a portion of the glyphs found
+   *     in the font (maybe ASCII).
+   *
+   *     You should use the `sTypoDescender` field of the 'OS/2' table
+   *     instead if you want the correct one.
+   *
+   *   Line_Gap ::
+   *     The font's line gap, i.e., the distance to add to the ascender and
+   *     descender to get the BTB, i.e., the baseline-to-baseline distance
+   *     for the font.
+   *
+   *   advance_Width_Max ::
+   *     This field is the maximum of all advance widths found in the font.
+   *     It can be used to compute the maximum width of an arbitrary string
+   *     of text.
+   *
+   *   min_Left_Side_Bearing ::
+   *     The minimum left side bearing of all glyphs within the font.
+   *
+   *   min_Right_Side_Bearing ::
+   *     The minimum right side bearing of all glyphs within the font.
+   *
+   *   xMax_Extent ::
+   *     The maximum horizontal extent (i.e., the 'width' of a glyph's
+   *     bounding box) for all glyphs in the font.
+   *
+   *   caret_Slope_Rise ::
+   *     The rise coefficient of the cursor's slope of the cursor
+   *     (slope=rise/run).
+   *
+   *   caret_Slope_Run ::
+   *     The run coefficient of the cursor's slope.
+   *
+   *   caret_Offset ::
+   *     The cursor's offset for slanted fonts.
+   *
+   *   Reserved ::
+   *     8~reserved bytes.
+   *
+   *   metric_Data_Format ::
+   *     Always~0.
+   *
+   *   number_Of_HMetrics ::
+   *     Number of HMetrics entries in the 'hmtx' table -- this value can be
+   *     smaller than the total number of glyphs in the font.
+   *
+   *   long_metrics ::
+   *     A pointer into the 'hmtx' table.
+   *
+   *   short_metrics ::
+   *     A pointer into the 'hmtx' table.
+   *
+   * @note:
+   *   For an OpenType variation font, the values of the following fields can
+   *   change after a call to @FT_Set_Var_Design_Coordinates (and friends) if
+   *   the font contains an 'MVAR' table: `caret_Slope_Rise`,
+   *   `caret_Slope_Run`, and `caret_Offset`.
+   */
   typedef struct  TT_HoriHeader_
   {
     FT_Fixed   Version;
@@ -219,7 +221,7 @@ FT_BEGIN_HEADER
 
     /* The following fields are not defined by the OpenType specification */
     /* but they are used to connect the metrics header to the relevant    */
-    /* `hmtx' table.                                                      */
+    /* 'hmtx' table.                                                      */
 
     void*      long_metrics;
     void*      short_metrics;
@@ -227,97 +229,93 @@ FT_BEGIN_HEADER
   } TT_HoriHeader;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_VertHeader                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model a TrueType vertical header, the `vhea'   */
-  /*    table, as well as the corresponding vertical metrics table,        */
-  /*    `vmtx'.                                                            */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    Version                 :: The table version.                      */
-  /*                                                                       */
-  /*    Ascender                :: The font's ascender, i.e., the distance */
-  /*                               from the baseline to the top-most of    */
-  /*                               all glyph points found in the font.     */
-  /*                                                                       */
-  /*                               This value is invalid in many fonts, as */
-  /*                               it is usually set by the font designer, */
-  /*                               and often reflects only a portion of    */
-  /*                               the glyphs found in the font (maybe     */
-  /*                               ASCII).                                 */
-  /*                                                                       */
-  /*                               You should use the `sTypoAscender'      */
-  /*                               field of the `OS/2' table instead if    */
-  /*                               you want the correct one.               */
-  /*                                                                       */
-  /*    Descender               :: The font's descender, i.e., the         */
-  /*                               distance from the baseline to the       */
-  /*                               bottom-most of all glyph points found   */
-  /*                               in the font.  It is negative.           */
-  /*                                                                       */
-  /*                               This value is invalid in many fonts, as */
-  /*                               it is usually set by the font designer, */
-  /*                               and often reflects only a portion of    */
-  /*                               the glyphs found in the font (maybe     */
-  /*                               ASCII).                                 */
-  /*                                                                       */
-  /*                               You should use the `sTypoDescender'     */
-  /*                               field of the `OS/2' table instead if    */
-  /*                               you want the correct one.               */
-  /*                                                                       */
-  /*    Line_Gap                :: The font's line gap, i.e., the distance */
-  /*                               to add to the ascender and descender to */
-  /*                               get the BTB, i.e., the                  */
-  /*                               baseline-to-baseline distance for the   */
-  /*                               font.                                   */
-  /*                                                                       */
-  /*    advance_Height_Max      :: This field is the maximum of all        */
-  /*                               advance heights found in the font.  It  */
-  /*                               can be used to compute the maximum      */
-  /*                               height of an arbitrary string of text.  */
-  /*                                                                       */
-  /*    min_Top_Side_Bearing    :: The minimum top side bearing of all     */
-  /*                               glyphs within the font.                 */
-  /*                                                                       */
-  /*    min_Bottom_Side_Bearing :: The minimum bottom side bearing of all  */
-  /*                               glyphs within the font.                 */
-  /*                                                                       */
-  /*    yMax_Extent             :: The maximum vertical extent (i.e., the  */
-  /*                               `height' of a glyph's bounding box) for */
-  /*                               all glyphs in the font.                 */
-  /*                                                                       */
-  /*    caret_Slope_Rise        :: The rise coefficient of the cursor's    */
-  /*                               slope of the cursor (slope=rise/run).   */
-  /*                                                                       */
-  /*    caret_Slope_Run         :: The run coefficient of the cursor's     */
-  /*                               slope.                                  */
-  /*                                                                       */
-  /*    caret_Offset            :: The cursor's offset for slanted fonts.  */
-  /*                                                                       */
-  /*    Reserved                :: 8~reserved bytes.                       */
-  /*                                                                       */
-  /*    metric_Data_Format      :: Always~0.                               */
-  /*                                                                       */
-  /*    number_Of_VMetrics      :: Number of VMetrics entries in the       */
-  /*                               `vmtx' table -- this value can be       */
-  /*                               smaller than the total number of glyphs */
-  /*                               in the font.                            */
-  /*                                                                       */
-  /*    long_metrics            :: A pointer into the `vmtx' table.        */
-  /*                                                                       */
-  /*    short_metrics           :: A pointer into the `vmtx' table.        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    For an OpenType variation font, the values of the following fields */
-  /*    can change after a call to @FT_Set_Var_Design_Coordinates (and     */
-  /*    friends) if the font contains an `MVAR' table: `Ascender',         */
-  /*    `Descender', `Line_Gap', `caret_Slope_Rise', `caret_Slope_Run',    */
-  /*    and `caret_Offset'.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_VertHeader
+   *
+   * @description:
+   *   A structure used to model a TrueType vertical header, the 'vhea'
+   *   table, as well as the corresponding vertical metrics table, 'vmtx'.
+   *
+   * @fields:
+   *   Version ::
+   *     The table version.
+   *
+   *   Ascender ::
+   *     The font's ascender, i.e., the distance from the baseline to the
+   *     top-most of all glyph points found in the font.
+   *
+   *     This value is invalid in many fonts, as it is usually set by the
+   *     font designer, and often reflects only a portion of the glyphs found
+   *     in the font (maybe ASCII).
+   *
+   *     You should use the `sTypoAscender` field of the 'OS/2' table instead
+   *     if you want the correct one.
+   *
+   *   Descender ::
+   *     The font's descender, i.e., the distance from the baseline to the
+   *     bottom-most of all glyph points found in the font.  It is negative.
+   *
+   *     This value is invalid in many fonts, as it is usually set by the
+   *     font designer, and often reflects only a portion of the glyphs found
+   *     in the font (maybe ASCII).
+   *
+   *     You should use the `sTypoDescender` field of the 'OS/2' table
+   *     instead if you want the correct one.
+   *
+   *   Line_Gap ::
+   *     The font's line gap, i.e., the distance to add to the ascender and
+   *     descender to get the BTB, i.e., the baseline-to-baseline distance
+   *     for the font.
+   *
+   *   advance_Height_Max ::
+   *     This field is the maximum of all advance heights found in the font.
+   *     It can be used to compute the maximum height of an arbitrary string
+   *     of text.
+   *
+   *   min_Top_Side_Bearing ::
+   *     The minimum top side bearing of all glyphs within the font.
+   *
+   *   min_Bottom_Side_Bearing ::
+   *     The minimum bottom side bearing of all glyphs within the font.
+   *
+   *   yMax_Extent ::
+   *     The maximum vertical extent (i.e., the 'height' of a glyph's
+   *     bounding box) for all glyphs in the font.
+   *
+   *   caret_Slope_Rise ::
+   *     The rise coefficient of the cursor's slope of the cursor
+   *     (slope=rise/run).
+   *
+   *   caret_Slope_Run ::
+   *     The run coefficient of the cursor's slope.
+   *
+   *   caret_Offset ::
+   *     The cursor's offset for slanted fonts.
+   *
+   *   Reserved ::
+   *     8~reserved bytes.
+   *
+   *   metric_Data_Format ::
+   *     Always~0.
+   *
+   *   number_Of_VMetrics ::
+   *     Number of VMetrics entries in the 'vmtx' table -- this value can be
+   *     smaller than the total number of glyphs in the font.
+   *
+   *   long_metrics ::
+   *     A pointer into the 'vmtx' table.
+   *
+   *   short_metrics ::
+   *     A pointer into the 'vmtx' table.
+   *
+   * @note:
+   *   For an OpenType variation font, the values of the following fields can
+   *   change after a call to @FT_Set_Var_Design_Coordinates (and friends) if
+   *   the font contains an 'MVAR' table: `Ascender`, `Descender`,
+   *   `Line_Gap`, `caret_Slope_Rise`, `caret_Slope_Run`, and `caret_Offset`.
+   */
   typedef struct  TT_VertHeader_
   {
     FT_Fixed   Version;
@@ -341,7 +339,7 @@ FT_BEGIN_HEADER
 
     /* The following fields are not defined by the OpenType specification */
     /* but they are used to connect the metrics header to the relevant    */
-    /* `vmtx' table.                                                      */
+    /* 'vmtx' table.                                                      */
 
     void*      long_metrics;
     void*      short_metrics;
@@ -349,33 +347,31 @@ FT_BEGIN_HEADER
   } TT_VertHeader;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_OS2                                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a TrueType `OS/2' table.  All fields comply   */
-  /*    to the OpenType specification.                                     */
-  /*                                                                       */
-  /*    Note that we now support old Mac fonts that do not include an      */
-  /*    `OS/2' table.  In this case, the `version' field is always set to  */
-  /*    0xFFFF.                                                            */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    For an OpenType variation font, the values of the following fields */
-  /*    can change after a call to @FT_Set_Var_Design_Coordinates (and     */
-  /*    friends) if the font contains an `MVAR' table: `sCapHeight',       */
-  /*    `sTypoAscender', `sTypoDescender', `sTypoLineGap', `sxHeight',     */
-  /*    `usWinAscent', `usWinDescent', `yStrikeoutPosition',               */
-  /*    `yStrikeoutSize', `ySubscriptXOffset', `ySubScriptXSize',          */
-  /*    `ySubscriptYOffset', `ySubscriptYSize', `ySuperscriptXOffset',     */
-  /*    `ySuperscriptXSize', `ySuperscriptYOffset', and                    */
-  /*    `ySuperscriptYSize'.                                               */
-  /*                                                                       */
-  /*    Possible values for bits in the `ulUnicodeRangeX' fields are given */
-  /*    by the @TT_UCR_XXX macros.                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_OS2
+   *
+   * @description:
+   *   A structure to model a TrueType 'OS/2' table.  All fields comply to
+   *   the OpenType specification.
+   *
+   *   Note that we now support old Mac fonts that do not include an 'OS/2'
+   *   table.  In this case, the `version` field is always set to 0xFFFF.
+   *
+   * @note:
+   *   For an OpenType variation font, the values of the following fields can
+   *   change after a call to @FT_Set_Var_Design_Coordinates (and friends) if
+   *   the font contains an 'MVAR' table: `sCapHeight`, `sTypoAscender`,
+   *   `sTypoDescender`, `sTypoLineGap`, `sxHeight`, `usWinAscent`,
+   *   `usWinDescent`, `yStrikeoutPosition`, `yStrikeoutSize`,
+   *   `ySubscriptXOffset`, `ySubScriptXSize`, `ySubscriptYOffset`,
+   *   `ySubscriptYSize`, `ySuperscriptXOffset`, `ySuperscriptXSize`,
+   *   `ySuperscriptYOffset`, and `ySuperscriptYSize`.
+   *
+   *   Possible values for bits in the `ulUnicodeRangeX` fields are given by
+   *   the @TT_UCR_XXX macros.
+   */
 
   typedef struct  TT_OS2_
   {
@@ -435,23 +431,23 @@ FT_BEGIN_HEADER
   } TT_OS2;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_Postscript                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a TrueType `post' table.  All fields comply   */
-  /*    to the OpenType specification.  This structure does not reference  */
-  /*    a font's PostScript glyph names; use @FT_Get_Glyph_Name to         */
-  /*    retrieve them.                                                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    For an OpenType variation font, the values of the following fields */
-  /*    can change after a call to @FT_Set_Var_Design_Coordinates (and     */
-  /*    friends) if the font contains an `MVAR' table: `underlinePosition' */
-  /*    and `underlineThickness'.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_Postscript
+   *
+   * @description:
+   *   A structure to model a TrueType 'post' table.  All fields comply to
+   *   the OpenType specification.  This structure does not reference a
+   *   font's PostScript glyph names; use @FT_Get_Glyph_Name to retrieve
+   *   them.
+   *
+   * @note:
+   *   For an OpenType variation font, the values of the following fields can
+   *   change after a call to @FT_Set_Var_Design_Coordinates (and friends) if
+   *   the font contains an 'MVAR' table: `underlinePosition` and
+   *   `underlineThickness`.
+   */
   typedef struct  TT_Postscript_
   {
     FT_Fixed  FormatType;
@@ -464,21 +460,21 @@ FT_BEGIN_HEADER
     FT_ULong  minMemType1;
     FT_ULong  maxMemType1;
 
-    /* Glyph names follow in the `post' table, but we don't */
+    /* Glyph names follow in the 'post' table, but we don't */
     /* load them by default.                                */
 
   } TT_Postscript;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_PCLT                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure to model a TrueType `PCLT' table.  All fields comply   */
-  /*    to the OpenType specification.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_PCLT
+   *
+   * @description:
+   *   A structure to model a TrueType 'PCLT' table.  All fields comply to
+   *   the OpenType specification.
+   */
   typedef struct  TT_PCLT_
   {
     FT_Fixed   Version;
@@ -500,70 +496,75 @@ FT_BEGIN_HEADER
   } TT_PCLT;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_MaxProfile                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The maximum profile (`maxp') table contains many max values, which */
-  /*    can be used to pre-allocate arrays for speeding up glyph loading   */
-  /*    and hinting.                                                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    version               :: The version number.                       */
-  /*                                                                       */
-  /*    numGlyphs             :: The number of glyphs in this TrueType     */
-  /*                             font.                                     */
-  /*                                                                       */
-  /*    maxPoints             :: The maximum number of points in a         */
-  /*                             non-composite TrueType glyph.  See also   */
-  /*                             `maxCompositePoints'.                     */
-  /*                                                                       */
-  /*    maxContours           :: The maximum number of contours in a       */
-  /*                             non-composite TrueType glyph.  See also   */
-  /*                             `maxCompositeContours'.                   */
-  /*                                                                       */
-  /*    maxCompositePoints    :: The maximum number of points in a         */
-  /*                             composite TrueType glyph.  See also       */
-  /*                             `maxPoints'.                              */
-  /*                                                                       */
-  /*    maxCompositeContours  :: The maximum number of contours in a       */
-  /*                             composite TrueType glyph.  See also       */
-  /*                             `maxContours'.                            */
-  /*                                                                       */
-  /*    maxZones              :: The maximum number of zones used for      */
-  /*                             glyph hinting.                            */
-  /*                                                                       */
-  /*    maxTwilightPoints     :: The maximum number of points in the       */
-  /*                             twilight zone used for glyph hinting.     */
-  /*                                                                       */
-  /*    maxStorage            :: The maximum number of elements in the     */
-  /*                             storage area used for glyph hinting.      */
-  /*                                                                       */
-  /*    maxFunctionDefs       :: The maximum number of function            */
-  /*                             definitions in the TrueType bytecode for  */
-  /*                             this font.                                */
-  /*                                                                       */
-  /*    maxInstructionDefs    :: The maximum number of instruction         */
-  /*                             definitions in the TrueType bytecode for  */
-  /*                             this font.                                */
-  /*                                                                       */
-  /*    maxStackElements      :: The maximum number of stack elements used */
-  /*                             during bytecode interpretation.           */
-  /*                                                                       */
-  /*    maxSizeOfInstructions :: The maximum number of TrueType opcodes    */
-  /*                             used for glyph hinting.                   */
-  /*                                                                       */
-  /*    maxComponentElements  :: The maximum number of simple (i.e., non-  */
-  /*                             composite) glyphs in a composite glyph.   */
-  /*                                                                       */
-  /*    maxComponentDepth     :: The maximum nesting depth of composite    */
-  /*                             glyphs.                                   */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This structure is only used during font loading.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @struct:
+   *   TT_MaxProfile
+   *
+   * @description:
+   *   The maximum profile ('maxp') table contains many max values, which can
+   *   be used to pre-allocate arrays for speeding up glyph loading and
+   *   hinting.
+   *
+   * @fields:
+   *   version ::
+   *     The version number.
+   *
+   *   numGlyphs ::
+   *     The number of glyphs in this TrueType font.
+   *
+   *   maxPoints ::
+   *     The maximum number of points in a non-composite TrueType glyph.  See
+   *     also `maxCompositePoints`.
+   *
+   *   maxContours ::
+   *     The maximum number of contours in a non-composite TrueType glyph.
+   *     See also `maxCompositeContours`.
+   *
+   *   maxCompositePoints ::
+   *     The maximum number of points in a composite TrueType glyph.  See
+   *     also `maxPoints`.
+   *
+   *   maxCompositeContours ::
+   *     The maximum number of contours in a composite TrueType glyph.  See
+   *     also `maxContours`.
+   *
+   *   maxZones ::
+   *     The maximum number of zones used for glyph hinting.
+   *
+   *   maxTwilightPoints ::
+   *     The maximum number of points in the twilight zone used for glyph
+   *     hinting.
+   *
+   *   maxStorage ::
+   *     The maximum number of elements in the storage area used for glyph
+   *     hinting.
+   *
+   *   maxFunctionDefs ::
+   *     The maximum number of function definitions in the TrueType bytecode
+   *     for this font.
+   *
+   *   maxInstructionDefs ::
+   *     The maximum number of instruction definitions in the TrueType
+   *     bytecode for this font.
+   *
+   *   maxStackElements ::
+   *     The maximum number of stack elements used during bytecode
+   *     interpretation.
+   *
+   *   maxSizeOfInstructions ::
+   *     The maximum number of TrueType opcodes used for glyph hinting.
+   *
+   *   maxComponentElements ::
+   *     The maximum number of simple (i.e., non-composite) glyphs in a
+   *     composite glyph.
+   *
+   *   maxComponentDepth ::
+   *     The maximum nesting depth of composite glyphs.
+   *
+   * @note:
+   *   This structure is only used during font loading.
+   */
   typedef struct  TT_MaxProfile_
   {
     FT_Fixed   version;
@@ -585,31 +586,38 @@ FT_BEGIN_HEADER
   } TT_MaxProfile;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Enum>                                                                */
-  /*    FT_Sfnt_Tag                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An enumeration to specify indices of SFNT tables loaded and parsed */
-  /*    by FreeType during initialization of an SFNT font.  Used in the    */
-  /*    @FT_Get_Sfnt_Table API function.                                   */
-  /*                                                                       */
-  /* <Values>                                                              */
-  /*    FT_SFNT_HEAD :: To access the font's @TT_Header structure.         */
-  /*                                                                       */
-  /*    FT_SFNT_MAXP :: To access the font's @TT_MaxProfile structure.     */
-  /*                                                                       */
-  /*    FT_SFNT_OS2  :: To access the font's @TT_OS2 structure.            */
-  /*                                                                       */
-  /*    FT_SFNT_HHEA :: To access the font's @TT_HoriHeader structure.     */
-  /*                                                                       */
-  /*    FT_SFNT_VHEA :: To access the font's @TT_VertHeader structure.     */
-  /*                                                                       */
-  /*    FT_SFNT_POST :: To access the font's @TT_Postscript structure.     */
-  /*                                                                       */
-  /*    FT_SFNT_PCLT :: To access the font's @TT_PCLT structure.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   FT_Sfnt_Tag
+   *
+   * @description:
+   *   An enumeration to specify indices of SFNT tables loaded and parsed by
+   *   FreeType during initialization of an SFNT font.  Used in the
+   *   @FT_Get_Sfnt_Table API function.
+   *
+   * @values:
+   *   FT_SFNT_HEAD ::
+   *     To access the font's @TT_Header structure.
+   *
+   *   FT_SFNT_MAXP ::
+   *     To access the font's @TT_MaxProfile structure.
+   *
+   *   FT_SFNT_OS2 ::
+   *     To access the font's @TT_OS2 structure.
+   *
+   *   FT_SFNT_HHEA ::
+   *     To access the font's @TT_HoriHeader structure.
+   *
+   *   FT_SFNT_VHEA ::
+   *     To access the font's @TT_VertHeader structure.
+   *
+   *   FT_SFNT_POST ::
+   *     To access the font's @TT_Postscript structure.
+   *
+   *   FT_SFNT_PCLT ::
+   *     To access the font's @TT_PCLT structure.
+   */
   typedef enum  FT_Sfnt_Tag_
   {
     FT_SFNT_HEAD,
@@ -624,7 +632,7 @@ FT_BEGIN_HEADER
 
   } FT_Sfnt_Tag;
 
-  /* these constants are deprecated; use the corresponding `FT_Sfnt_Tag' */
+  /* these constants are deprecated; use the corresponding `FT_Sfnt_Tag` */
   /* values instead                                                      */
 #define ft_sfnt_head  FT_SFNT_HEAD
 #define ft_sfnt_maxp  FT_SFNT_MAXP
@@ -635,44 +643,46 @@ FT_BEGIN_HEADER
 #define ft_sfnt_pclt  FT_SFNT_PCLT
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_Sfnt_Table                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return a pointer to a given SFNT table stored within a face.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the source.                                    */
-  /*                                                                       */
-  /*    tag  :: The index of the SFNT table.                               */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A type-less pointer to the table.  This will be NULL in case of    */
-  /*    error, or if the corresponding table was not found *OR* loaded     */
-  /*    from the file.                                                     */
-  /*                                                                       */
-  /*    Use a typecast according to `tag' to access the structure          */
-  /*    elements.                                                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The table is owned by the face object and disappears with it.      */
-  /*                                                                       */
-  /*    This function is only useful to access SFNT tables that are loaded */
-  /*    by the sfnt, truetype, and opentype drivers.  See @FT_Sfnt_Tag for */
-  /*    a list.                                                            */
-  /*                                                                       */
-  /*    Here an example how to access the `vhea' table:                    */
-  /*                                                                       */
-  /*    {                                                                  */
-  /*      TT_VertHeader*  vert_header;                                     */
-  /*                                                                       */
-  /*                                                                       */
-  /*      vert_header =                                                    */
-  /*        (TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA );       */
-  /*    }                                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_Sfnt_Table
+   *
+   * @description:
+   *   Return a pointer to a given SFNT table stored within a face.
+   *
+   * @input:
+   *   face ::
+   *     A handle to the source.
+   *
+   *   tag ::
+   *     The index of the SFNT table.
+   *
+   * @return:
+   *   A type-less pointer to the table.  This will be `NULL` in case of
+   *   error, or if the corresponding table was not found **OR** loaded from
+   *   the file.
+   *
+   *   Use a typecast according to `tag` to access the structure elements.
+   *
+   * @note:
+   *   The table is owned by the face object and disappears with it.
+   *
+   *   This function is only useful to access SFNT tables that are loaded by
+   *   the sfnt, truetype, and opentype drivers.  See @FT_Sfnt_Tag for a
+   *   list.
+   *
+   * @example:
+   *   Here is an example demonstrating access to the 'vhea' table.
+   *
+   *   ```
+   *     TT_VertHeader*  vert_header;
+   *
+   *
+   *     vert_header =
+   *       (TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA );
+   *   ```
+   */
   FT_EXPORT( void* )
   FT_Get_Sfnt_Table( FT_Face      face,
                      FT_Sfnt_Tag  tag );
@@ -691,8 +701,8 @@ FT_BEGIN_HEADER
    *     A handle to the source face.
    *
    *   tag ::
-   *     The four-byte tag of the table to load.  Use value~0 if you want
-   *     to access the whole font file.  Otherwise, you can use one of the
+   *     The four-byte tag of the table to load.  Use value~0 if you want to
+   *     access the whole font file.  Otherwise, you can use one of the
    *     definitions found in the @FT_TRUETYPE_TAGS_H file, or forge a new
    *     one with @FT_MAKE_TAG.
    *
@@ -706,10 +716,10 @@ FT_BEGIN_HEADER
    *
    * @inout:
    *   length ::
-   *     If the `length' parameter is NULL, try to load the whole table.
+   *     If the `length` parameter is `NULL`, try to load the whole table.
    *     Return an error code if it fails.
    *
-   *     Else, if `*length' is~0, exit immediately while returning the
+   *     Else, if `*length` is~0, exit immediately while returning the
    *     table's (or file) full size in it.
    *
    *     Else the number of bytes to read from the table or file, from the
@@ -720,21 +730,21 @@ FT_BEGIN_HEADER
    *
    * @note:
    *   If you need to determine the table's length you should first call this
-   *   function with `*length' set to~0, as in the following example:
+   *   function with `*length` set to~0, as in the following example:
    *
-   *     {
-   *       FT_ULong  length = 0;
+   *   ```
+   *     FT_ULong  length = 0;
    *
    *
-   *       error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
-   *       if ( error ) { ... table does not exist ... }
+   *     error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
+   *     if ( error ) { ... table does not exist ... }
    *
-   *       buffer = malloc( length );
-   *       if ( buffer == NULL ) { ... not enough memory ... }
+   *     buffer = malloc( length );
+   *     if ( buffer == NULL ) { ... not enough memory ... }
    *
-   *       error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
-   *       if ( error ) { ... could not load table ... }
-   *     }
+   *     error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
+   *     if ( error ) { ... could not load table ... }
+   *   ```
    *
    *   Note that structures like @TT_Header or @TT_OS2 can't be used with
    *   this function; they are limited to @FT_Get_Sfnt_Table.  Reason is that
@@ -768,14 +778,14 @@ FT_BEGIN_HEADER
    *
    * @inout:
    *   tag ::
-   *     The name tag of the SFNT table.  If the value is NULL, `table_index'
-   *     is ignored, and `length' returns the number of SFNT tables in the
-   *     font.
+   *     The name tag of the SFNT table.  If the value is `NULL`,
+   *     `table_index` is ignored, and `length` returns the number of SFNT
+   *     tables in the font.
    *
    * @output:
    *   length ::
-   *     The length of the SFNT table (or the number of SFNT tables, depending
-   *     on `tag').
+   *     The length of the SFNT table (or the number of SFNT tables,
+   *     depending on `tag`).
    *
    * @return:
    *   FreeType error code.  0~means success.
@@ -792,46 +802,46 @@ FT_BEGIN_HEADER
                       FT_ULong  *length );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_CMap_Language_ID                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return cmap language ID as specified in the OpenType standard.     */
-  /*    Definitions of language ID values are in file @FT_TRUETYPE_IDS_H.  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    charmap ::                                                         */
-  /*      The target charmap.                                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The language ID of `charmap'.  If `charmap' doesn't belong to an   */
-  /*    SFNT face, just return~0 as the default value.                     */
-  /*                                                                       */
-  /*    For a format~14 cmap (to access Unicode IVS), the return value is  */
-  /*    0xFFFFFFFF.                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_CMap_Language_ID
+   *
+   * @description:
+   *   Return cmap language ID as specified in the OpenType standard.
+   *   Definitions of language ID values are in file @FT_TRUETYPE_IDS_H.
+   *
+   * @input:
+   *   charmap ::
+   *     The target charmap.
+   *
+   * @return:
+   *   The language ID of `charmap`.  If `charmap` doesn't belong to an SFNT
+   *   face, just return~0 as the default value.
+   *
+   *   For a format~14 cmap (to access Unicode IVS), the return value is
+   *   0xFFFFFFFF.
+   */
   FT_EXPORT( FT_ULong )
   FT_Get_CMap_Language_ID( FT_CharMap  charmap );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Get_CMap_Format                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the format of an SFNT `cmap' table.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    charmap ::                                                         */
-  /*      The target charmap.                                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The format of `charmap'.  If `charmap' doesn't belong to an SFNT   */
-  /*    face, return -1.                                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @function:
+   *   FT_Get_CMap_Format
+   *
+   * @description:
+   *   Return the format of an SFNT 'cmap' table.
+   *
+   * @input:
+   *   charmap ::
+   *     The target charmap.
+   *
+   * @return:
+   *   The format of `charmap`.  If `charmap` doesn't belong to an SFNT face,
+   *   return -1.
+   */
   FT_EXPORT( FT_Long )
   FT_Get_CMap_Format( FT_CharMap  charmap );
 
diff --git a/thirdparty/freetype/include/freetype/tttags.h b/thirdparty/freetype/include/freetype/tttags.h
index e5cee68a15..bd0986eff0 100644
--- a/thirdparty/freetype/include/freetype/tttags.h
+++ b/thirdparty/freetype/include/freetype/tttags.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  tttags.h                                                               */
-/*                                                                         */
-/*    Tags for TrueType and OpenType tables (specification only).          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * tttags.h
+ *
+ *   Tags for TrueType and OpenType tables (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTAGS_H_
@@ -46,6 +46,8 @@ FT_BEGIN_HEADER
 #define TTAG_CFF2  FT_MAKE_TAG( 'C', 'F', 'F', '2' )
 #define TTAG_CID   FT_MAKE_TAG( 'C', 'I', 'D', ' ' )
 #define TTAG_cmap  FT_MAKE_TAG( 'c', 'm', 'a', 'p' )
+#define TTAG_COLR  FT_MAKE_TAG( 'C', 'O', 'L', 'R' )
+#define TTAG_CPAL  FT_MAKE_TAG( 'C', 'P', 'A', 'L' )
 #define TTAG_cvar  FT_MAKE_TAG( 'c', 'v', 'a', 'r' )
 #define TTAG_cvt   FT_MAKE_TAG( 'c', 'v', 't', ' ' )
 #define TTAG_DSIG  FT_MAKE_TAG( 'D', 'S', 'I', 'G' )
diff --git a/thirdparty/freetype/include/freetype/ttunpat.h b/thirdparty/freetype/include/freetype/ttunpat.h
deleted file mode 100644
index f5e417089e..0000000000
--- a/thirdparty/freetype/include/freetype/ttunpat.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttunpat.h                                                              */
-/*                                                                         */
-/*    Definitions for the unpatented TrueType hinting system.              */
-/*    Obsolete, retained for backward compatibility.                       */
-/*                                                                         */
-/*  Copyright 2003-2017 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  Written by Graham Asher <graham.asher@btinternet.com>                  */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef TTUNPAT_H_
-#define TTUNPAT_H_
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
- /***************************************************************************
-  *
-  * @constant:
-  *   FT_PARAM_TAG_UNPATENTED_HINTING
-  *
-  * @description:
-  *   Deprecated.
-  *
-  *   Previously: A constant used as the tag of an @FT_Parameter structure to
-  *   indicate that unpatented methods only should be used by the TrueType
-  *   bytecode interpreter for a typeface opened by @FT_Open_Face.
-  *
-  */
-#define FT_PARAM_TAG_UNPATENTED_HINTING  FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
-
-  /* */
-
-
-FT_END_HEADER
-
-
-#endif /* TTUNPAT_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/ft2build.h b/thirdparty/freetype/include/ft2build.h
index e7ce99bc94..e3f4887943 100644
--- a/thirdparty/freetype/include/ft2build.h
+++ b/thirdparty/freetype/include/ft2build.h
@@ -1,34 +1,36 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ft2build.h                                                             */
-/*                                                                         */
-/*    FreeType 2 build and setup macros.                                   */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This is the `entry point' for FreeType header file inclusions.  It is */
-  /* the only header file which should be included directly; all other     */
-  /* FreeType header files should be accessed with macro names (after      */
-  /* including `ft2build.h').                                              */
-  /*                                                                       */
-  /* A typical example is                                                  */
-  /*                                                                       */
-  /*   #include <ft2build.h>                                               */
-  /*   #include FT_FREETYPE_H                                              */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ft2build.h
+ *
+ *   FreeType 2 build and setup macros.
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This is the 'entry point' for FreeType header file inclusions.  It is
+   * the only header file which should be included directly; all other
+   * FreeType header files should be accessed with macro names (after
+   * including `ft2build.h`).
+   *
+   * A typical example is
+   *
+   * ```
+   *   #include <ft2build.h>
+   *   #include FT_FREETYPE_H
+   * ```
+   *
+   */
 
 
 #ifndef FT2BUILD_H_
diff --git a/thirdparty/freetype/src/autofit/afangles.c b/thirdparty/freetype/src/autofit/afangles.c
index c65a3ae23e..9e1f7a21ff 100644
--- a/thirdparty/freetype/src/autofit/afangles.c
+++ b/thirdparty/freetype/src/autofit/afangles.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afangles.c                                                             */
-/*                                                                         */
-/*    Routines used to compute vector angles with limited accuracy         */
-/*    and very high speed.  It also contains sorting routines (body).      */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afangles.c
+ *
+ *   Routines used to compute vector angles with limited accuracy
+ *   and very high speed.  It also contains sorting routines (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "aftypes.h"
 
 
   /*
-   *  We are not using `af_angle_atan' anymore, but we keep the source
-   *  code below just in case...
+   * We are not using `af_angle_atan' anymore, but we keep the source
+   * code below just in case...
    */
 
 
@@ -30,16 +30,16 @@
 
 
   /*
-   *  The trick here is to realize that we don't need a very accurate angle
-   *  approximation.  We are going to use the result of `af_angle_atan' to
-   *  only compare the sign of angle differences, or check whether its
-   *  magnitude is very small.
+   * The trick here is to realize that we don't need a very accurate angle
+   * approximation.  We are going to use the result of `af_angle_atan' to
+   * only compare the sign of angle differences, or check whether its
+   * magnitude is very small.
    *
-   *  The approximation
+   * The approximation
    *
-   *    dy * PI / (|dx|+|dy|)
+   *   dy * PI / (|dx|+|dy|)
    *
-   *  should be enough, and much faster to compute.
+   * should be enough, and much faster to compute.
    */
   FT_LOCAL_DEF( AF_Angle )
   af_angle_atan( FT_Fixed  dx,
diff --git a/thirdparty/freetype/src/autofit/afangles.h b/thirdparty/freetype/src/autofit/afangles.h
index f33f9e108e..18d7dae3a6 100644
--- a/thirdparty/freetype/src/autofit/afangles.h
+++ b/thirdparty/freetype/src/autofit/afangles.h
@@ -1,7 +1,7 @@
 /*
- *  afangles.h
+ * afangles.h
  *
- *  This is a dummy file, used to please the build system.  It is never
- *  included by the auto-fitter sources.
+ * This is a dummy file, used to please the build system.  It is never
+ * included by the auto-fitter sources.
  *
  */
diff --git a/thirdparty/freetype/src/autofit/afblue.c b/thirdparty/freetype/src/autofit/afblue.c
index e4078fd044..28da159008 100644
--- a/thirdparty/freetype/src/autofit/afblue.c
+++ b/thirdparty/freetype/src/autofit/afblue.c
@@ -1,22 +1,22 @@
 /* This file has been generated by the Perl script `afblue.pl', */
 /* using data from file `afblue.dat'.                           */
 
-/***************************************************************************/
-/*                                                                         */
-/*  afblue.c                                                               */
-/*                                                                         */
-/*    Auto-fitter data for blue strings (body).                            */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afblue.c
+ *
+ *   Auto-fitter data for blue strings (body).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "aftypes.h"
diff --git a/thirdparty/freetype/src/autofit/afblue.cin b/thirdparty/freetype/src/autofit/afblue.cin
index 4913e2eb6f..6545d1fd43 100644
--- a/thirdparty/freetype/src/autofit/afblue.cin
+++ b/thirdparty/freetype/src/autofit/afblue.cin
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afblue.c                                                               */
-/*                                                                         */
-/*    Auto-fitter data for blue strings (body).                            */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afblue.c
+ *
+ *   Auto-fitter data for blue strings (body).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "aftypes.h"
diff --git a/thirdparty/freetype/src/autofit/afblue.dat b/thirdparty/freetype/src/autofit/afblue.dat
index bc2f0d2754..14a0993b61 100644
--- a/thirdparty/freetype/src/autofit/afblue.dat
+++ b/thirdparty/freetype/src/autofit/afblue.dat
@@ -1,15 +1,15 @@
-//  afblue.dat
+// afblue.dat
 //
-//    Auto-fitter data for blue strings.
+//   Auto-fitter data for blue strings.
 //
-//  Copyright 2013-2018 by
-//  David Turner, Robert Wilhelm, and Werner Lemberg.
+// Copyright (C) 2013-2019 by
+// David Turner, Robert Wilhelm, and Werner Lemberg.
 //
-//  This file is part of the FreeType project, and may only be used,
-//  modified, and distributed under the terms of the FreeType project
-//  license, LICENSE.TXT.  By continuing to use, modify, or distribute
-//  this file you indicate that you have read the license and
-//  understand and accept it fully.
+// This file is part of the FreeType project, and may only be used,
+// modified, and distributed under the terms of the FreeType project
+// license, LICENSE.TXT.  By continuing to use, modify, or distribute
+// this file you indicate that you have read the license and
+// understand and accept it fully.
 
 
 // This file contains data specific to blue zones.  It gets processed by
diff --git a/thirdparty/freetype/src/autofit/afblue.h b/thirdparty/freetype/src/autofit/afblue.h
index de31e259c3..a2ff597b8e 100644
--- a/thirdparty/freetype/src/autofit/afblue.h
+++ b/thirdparty/freetype/src/autofit/afblue.h
@@ -1,22 +1,22 @@
 /* This file has been generated by the Perl script `afblue.pl', */
 /* using data from file `afblue.dat'.                           */
 
-/***************************************************************************/
-/*                                                                         */
-/*  afblue.h                                                               */
-/*                                                                         */
-/*    Auto-fitter data for blue strings (specification).                   */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afblue.h
+ *
+ *   Auto-fitter data for blue strings (specification).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFBLUE_H_
diff --git a/thirdparty/freetype/src/autofit/afblue.hin b/thirdparty/freetype/src/autofit/afblue.hin
index 682147cb30..30a28dafa5 100644
--- a/thirdparty/freetype/src/autofit/afblue.hin
+++ b/thirdparty/freetype/src/autofit/afblue.hin
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afblue.h                                                               */
-/*                                                                         */
-/*    Auto-fitter data for blue strings (specification).                   */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afblue.h
+ *
+ *   Auto-fitter data for blue strings (specification).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFBLUE_H_
diff --git a/thirdparty/freetype/src/autofit/afcjk.c b/thirdparty/freetype/src/autofit/afcjk.c
index 21b6bffa33..3b2b1cf24c 100644
--- a/thirdparty/freetype/src/autofit/afcjk.c
+++ b/thirdparty/freetype/src/autofit/afcjk.c
@@ -1,24 +1,24 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afcjk.c                                                                */
-/*                                                                         */
-/*    Auto-fitter hinting routines for CJK writing system (body).          */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afcjk.c
+ *
+ *   Auto-fitter hinting routines for CJK writing system (body).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
   /*
-   *  The algorithm is based on akito's autohint patch, archived at
+   * The algorithm is based on akito's autohint patch, archived at
    *
-   *  https://web.archive.org/web/20051219160454/http://www.kde.gr.jp:80/~akito/patch/freetype2/2.1.7/
+   * https://web.archive.org/web/20051219160454/http://www.kde.gr.jp:80/~akito/patch/freetype2/2.1.7/
    *
    */
 
@@ -27,7 +27,6 @@
 #include FT_INTERNAL_DEBUG_H
 
 #include "afglobal.h"
-#include "afpic.h"
 #include "aflatin.h"
 #include "afcjk.h"
 
@@ -44,14 +43,14 @@
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_afcjk
+#define FT_COMPONENT  afcjk
 
 
   /*************************************************************************/
@@ -92,23 +91,29 @@
       AF_CJKMetricsRec  dummy[1];
       AF_Scaler         scaler = &dummy->root.scaler;
 
-#ifdef FT_CONFIG_OPTION_PIC
-      AF_FaceGlobals  globals = metrics->root.globals;
-#endif
-
       AF_StyleClass   style_class  = metrics->root.style_class;
-      AF_ScriptClass  script_class = AF_SCRIPT_CLASSES_GET
-                                       [style_class->script];
+      AF_ScriptClass  script_class = af_script_classes[style_class->script];
+
+      /* If HarfBuzz is not available, we need a pointer to a single */
+      /* unsigned long value.                                        */
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+      void*     shaper_buf;
+#else
+      FT_ULong  shaper_buf_;
+      void*     shaper_buf = &shaper_buf_;
+#endif
 
-      void*        shaper_buf;
       const char*  p;
 
 #ifdef FT_DEBUG_LEVEL_TRACE
       FT_ULong  ch = 0;
 #endif
 
-      p          = script_class->standard_charstring;
+      p = script_class->standard_charstring;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
       shaper_buf = af_shaper_buf_create( face );
+#endif
 
       /* We check a list of standard characters.  The first match wins. */
 
@@ -193,10 +198,10 @@
           goto Exit;
 
         /*
-         *  We assume that the glyphs selected for the stem width
-         *  computation are `featureless' enough so that the linking
-         *  algorithm works fine without adjustments of its scoring
-         *  function.
+         * We assume that the glyphs selected for the stem width
+         * computation are `featureless' enough so that the linking
+         * algorithm works fine without adjustments of its scoring
+         * function.
          */
         af_latin_hints_link_segments( hints,
                                       0,
@@ -296,7 +301,14 @@
     AF_Blue_Stringset         bss = sc->blue_stringset;
     const AF_Blue_StringRec*  bs  = &af_blue_stringsets[bss];
 
-    void*  shaper_buf;
+    /* If HarfBuzz is not available, we need a pointer to a single */
+    /* unsigned long value.                                        */
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+    void*     shaper_buf;
+#else
+    FT_ULong  shaper_buf_;
+    void*     shaper_buf = &shaper_buf_;
+#endif
 
 
     /* we walk over the blue character strings as specified in the   */
@@ -307,7 +319,9 @@
                 "==========================\n"
                 "\n" ));
 
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
     shaper_buf = af_shaper_buf_create( face );
+#endif
 
     for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
     {
@@ -483,8 +497,8 @@
       if ( num_flats == 0 && num_fills == 0 )
       {
         /*
-         *  we couldn't find a single glyph to compute this blue zone,
-         *  we will simply ignore it then
+         * we couldn't find a single glyph to compute this blue zone,
+         * we will simply ignore it then
          */
         FT_TRACE5(( "  empty\n" ));
         continue;
@@ -565,15 +579,25 @@
     FT_Bool   started = 0, same_width = 1;
     FT_Fixed  advance = 0, old_advance = 0;
 
-    void*  shaper_buf;
+    /* If HarfBuzz is not available, we need a pointer to a single */
+    /* unsigned long value.                                        */
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+    void*     shaper_buf;
+#else
+    FT_ULong  shaper_buf_;
+    void*     shaper_buf = &shaper_buf_;
+#endif
 
     /* in all supported charmaps, digits have character codes 0x30-0x39 */
     const char   digits[] = "0 1 2 3 4 5 6 7 8 9";
     const char*  p;
 
 
-    p          = digits;
+    p = digits;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
     shaper_buf = af_shaper_buf_create( face );
+#endif
 
     while ( *p )
     {
@@ -890,11 +914,11 @@
     }
 
     /*
-     *  now compute the `serif' segments
+     * now compute the `serif' segments
      *
-     *  In Hanzi, some strokes are wider on one or both of the ends.
-     *  We either identify the stems on the ends as serifs or remove
-     *  the linkage, depending on the length of the stems.
+     * In Hanzi, some strokes are wider on one or both of the ends.
+     * We either identify the stems on the ends as serifs or remove
+     * the linkage, depending on the length of the stems.
      *
      */
 
@@ -1000,21 +1024,21 @@
     scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
                                          : hints->y_scale;
 
-    /*********************************************************************/
-    /*                                                                   */
-    /* We begin by generating a sorted table of edges for the current    */
-    /* direction.  To do so, we simply scan each segment and try to find */
-    /* an edge in our table that corresponds to its position.            */
-    /*                                                                   */
-    /* If no edge is found, we create and insert a new edge in the       */
-    /* sorted table.  Otherwise, we simply add the segment to the edge's */
-    /* list which is then processed in the second step to compute the    */
-    /* edge's properties.                                                */
-    /*                                                                   */
-    /* Note that the edges table is sorted along the segment/edge        */
-    /* position.                                                         */
-    /*                                                                   */
-    /*********************************************************************/
+    /**********************************************************************
+     *
+     * We begin by generating a sorted table of edges for the current
+     * direction.  To do so, we simply scan each segment and try to find
+     * an edge in our table that corresponds to its position.
+     *
+     * If no edge is found, we create and insert a new edge in the
+     * sorted table.  Otherwise, we simply add the segment to the edge's
+     * list which is then processed in the second step to compute the
+     * edge's properties.
+     *
+     * Note that the edges table is sorted along the segment/edge
+     * position.
+     *
+     */
 
     edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
                                          scale );
@@ -1114,17 +1138,17 @@
       }
     }
 
-    /******************************************************************/
-    /*                                                                */
-    /* Good, we now compute each edge's properties according to the   */
-    /* segments found on its position.  Basically, these are          */
-    /*                                                                */
-    /*  - the edge's main direction                                   */
-    /*  - stem edge, serif edge or both (which defaults to stem then) */
-    /*  - rounded edge, straight or both (which defaults to straight) */
-    /*  - link for edge                                               */
-    /*                                                                */
-    /******************************************************************/
+    /*******************************************************************
+     *
+     * Good, we now compute each edge's properties according to the
+     * segments found on its position.  Basically, these are
+     *
+     * - the edge's main direction
+     * - stem edge, serif edge or both (which defaults to stem then)
+     * - rounded edge, straight or both (which defaults to straight)
+     * - link for edge
+     *
+     */
 
     /* first of all, set the `edge' field in each segment -- this is */
     /* required in order to compute edge links                       */
@@ -1174,7 +1198,7 @@
 
           /* check for links -- if seg->serif is set, then seg->link must */
           /* be ignored                                                   */
-          is_serif = (FT_Bool)( seg->serif && seg->serif->edge != edge );
+          is_serif = FT_BOOL( seg->serif && seg->serif->edge != edge );
 
           if ( seg->link || is_serif )
           {
@@ -1364,8 +1388,8 @@
     af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
 
     /*
-     *  correct x_scale and y_scale when needed, since they may have
-     *  been modified af_cjk_scale_dim above
+     * correct x_scale and y_scale when needed, since they may have
+     * been modified af_cjk_scale_dim above
      */
     hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
     hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
@@ -1384,21 +1408,21 @@
     other_flags  = 0;
 
     /*
-     *  We snap the width of vertical stems for the monochrome and
-     *  horizontal LCD rendering targets only.
+     * We snap the width of vertical stems for the monochrome and
+     * horizontal LCD rendering targets only.
      */
     if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
       other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
 
     /*
-     *  We snap the width of horizontal stems for the monochrome and
-     *  vertical LCD rendering targets only.
+     * We snap the width of horizontal stems for the monochrome and
+     * vertical LCD rendering targets only.
      */
     if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
       other_flags |= AF_LATIN_HINTS_VERT_SNAP;
 
     /*
-     *  We adjust stems to full pixels unless in `light' or `lcd' mode.
+     * We adjust stems to full pixels unless in `light' or `lcd' mode.
      */
     if ( mode != FT_RENDER_MODE_LIGHT && mode != FT_RENDER_MODE_LCD )
       other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
@@ -2094,8 +2118,8 @@
       goto Exit;
 
     /*
-     *  now hint the remaining edges (serifs and single) in order
-     *  to complete our processing
+     * now hint the remaining edges (serifs and single) in order
+     * to complete our processing
      */
     for ( edge = edges; edge < edge_limit; edge++ )
     {
diff --git a/thirdparty/freetype/src/autofit/afcjk.h b/thirdparty/freetype/src/autofit/afcjk.h
index d229c0c9cf..59acae5342 100644
--- a/thirdparty/freetype/src/autofit/afcjk.h
+++ b/thirdparty/freetype/src/autofit/afcjk.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afcjk.h                                                                */
-/*                                                                         */
-/*    Auto-fitter hinting routines for CJK writing system (specification). */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afcjk.h
+ *
+ *   Auto-fitter hinting routines for CJK writing system (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFCJK_H_
@@ -41,9 +41,9 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  CJK glyphs tend to fill the square.  So we have both vertical and
-   *  horizontal blue zones.  But some glyphs have flat bounding strokes that
-   *  leave some space between neighbour glyphs.
+   * CJK glyphs tend to fill the square.  So we have both vertical and
+   * horizontal blue zones.  But some glyphs have flat bounding strokes that
+   * leave some space between neighbour glyphs.
    */
 
 #define AF_CJK_IS_TOP_BLUE( b ) \
diff --git a/thirdparty/freetype/src/autofit/afcover.h b/thirdparty/freetype/src/autofit/afcover.h
index 6eeb8fc9fb..ff207a97e0 100644
--- a/thirdparty/freetype/src/autofit/afcover.h
+++ b/thirdparty/freetype/src/autofit/afcover.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afcover.h                                                              */
-/*                                                                         */
-/*    Auto-fitter coverages (specification only).                          */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afcover.h
+ *
+ *   Auto-fitter coverages (specification only).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /* This header file can be included multiple times. */
diff --git a/thirdparty/freetype/src/autofit/afdummy.c b/thirdparty/freetype/src/autofit/afdummy.c
index f30c517cbb..7e07a41e7d 100644
--- a/thirdparty/freetype/src/autofit/afdummy.c
+++ b/thirdparty/freetype/src/autofit/afdummy.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afdummy.c                                                              */
-/*                                                                         */
-/*    Auto-fitter dummy routines to be used if no hinting should be        */
-/*    performed (body).                                                    */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afdummy.c
+ *
+ *   Auto-fitter dummy routines to be used if no hinting should be
+ *   performed (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "afdummy.h"
@@ -38,13 +38,15 @@
 
 
   static FT_Error
-  af_dummy_hints_apply( FT_UInt        glyph_index,
-                        AF_GlyphHints  hints,
-                        FT_Outline*    outline )
+  af_dummy_hints_apply( FT_UInt          glyph_index,
+                        AF_GlyphHints    hints,
+                        FT_Outline*      outline,
+                        AF_StyleMetrics  metrics )
   {
     FT_Error  error;
 
     FT_UNUSED( glyph_index );
+    FT_UNUSED( metrics );
 
 
     error = af_glyph_hints_reload( hints, outline );
diff --git a/thirdparty/freetype/src/autofit/afdummy.h b/thirdparty/freetype/src/autofit/afdummy.h
index b382acd92a..ab9227d35d 100644
--- a/thirdparty/freetype/src/autofit/afdummy.h
+++ b/thirdparty/freetype/src/autofit/afdummy.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afdummy.h                                                              */
-/*                                                                         */
-/*    Auto-fitter dummy routines to be used if no hinting should be        */
-/*    performed (specification).                                           */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afdummy.h
+ *
+ *   Auto-fitter dummy routines to be used if no hinting should be
+ *   performed (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFDUMMY_H_
diff --git a/thirdparty/freetype/src/autofit/aferrors.h b/thirdparty/freetype/src/autofit/aferrors.h
index e5de54360f..2ec336f72c 100644
--- a/thirdparty/freetype/src/autofit/aferrors.h
+++ b/thirdparty/freetype/src/autofit/aferrors.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  aferrors.h                                                             */
-/*                                                                         */
-/*    Autofitter error codes (specification only).                         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the Autofitter error enumeration          */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * aferrors.h
+ *
+ *   Autofitter error codes (specification only).
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the Autofitter error enumeration
+   * constants.
+   *
+   */
 
 #ifndef AFERRORS_H_
 #define AFERRORS_H_
diff --git a/thirdparty/freetype/src/autofit/afglobal.c b/thirdparty/freetype/src/autofit/afglobal.c
index 3d09c53e8a..7183ce4a78 100644
--- a/thirdparty/freetype/src/autofit/afglobal.c
+++ b/thirdparty/freetype/src/autofit/afglobal.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afglobal.c                                                             */
-/*                                                                         */
-/*    Auto-fitter routines to compute global hinting values (body).        */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afglobal.c
+ *
+ *   Auto-fitter routines to compute global hinting values (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "afglobal.h"
@@ -22,14 +22,14 @@
 #include FT_INTERNAL_DEBUG_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_afglobal
+#define FT_COMPONENT  afglobal
 
 
   /* get writing system specific header files */
@@ -38,7 +38,6 @@
 #include "afwrtsys.h"
 
 #include "aferrors.h"
-#include "afpic.h"
 
 
 #undef  SCRIPT
@@ -67,8 +66,6 @@
 #include "afstyles.h"
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #undef  WRITING_SYSTEM
 #define WRITING_SYSTEM( ws, WS )               \
           &af_ ## ws ## _writing_system_class,
@@ -110,8 +107,6 @@
     NULL  /* do not remove */
   };
 
-#endif /* !FT_CONFIG_OPTION_PIC */
-
 
 #ifdef FT_DEBUG_LEVEL_TRACE
 
@@ -159,12 +154,12 @@
     }
 
     /* scan each style in a Unicode charmap */
-    for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+    for ( ss = 0; af_style_classes[ss]; ss++ )
     {
       AF_StyleClass       style_class =
-                            AF_STYLE_CLASSES_GET[ss];
+                            af_style_classes[ss];
       AF_ScriptClass      script_class =
-                            AF_SCRIPT_CLASSES_GET[style_class->script];
+                            af_script_classes[style_class->script];
       AF_Script_UniRange  range;
 
 
@@ -172,8 +167,8 @@
         continue;
 
       /*
-       *  Scan all Unicode points in the range and set the corresponding
-       *  glyph style index.
+       * Scan all Unicode points in the range and set the corresponding
+       * glyph style index.
        */
       if ( style_class->coverage == AF_COVERAGE_DEFAULT )
       {
@@ -246,9 +241,9 @@
     }
 
     /* handle the remaining default OpenType features ... */
-    for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+    for ( ss = 0; af_style_classes[ss]; ss++ )
     {
-      AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[ss];
+      AF_StyleClass  style_class = af_style_classes[ss];
 
 
       if ( style_class->coverage == AF_COVERAGE_DEFAULT )
@@ -256,7 +251,7 @@
     }
 
     /* ... and finally the default OpenType features of the default script */
-    af_shaper_get_coverage( globals, AF_STYLE_CLASSES_GET[dflt], gstyles, 1 );
+    af_shaper_get_coverage( globals, af_style_classes[dflt], gstyles, 1 );
 
     /* mark ASCII digits */
     for ( i = 0x30; i <= 0x39; i++ )
@@ -270,8 +265,8 @@
 
   Exit:
     /*
-     *  By default, all uncovered glyphs are set to the fallback style.
-     *  XXX: Shouldn't we disable hinting or do something similar?
+     * By default, all uncovered glyphs are set to the fallback style.
+     * XXX: Shouldn't we disable hinting or do something similar?
      */
     if ( globals->module->fallback_style != AF_STYLE_UNASSIGNED )
     {
@@ -295,9 +290,9 @@
                 "==============\n"
                 "\n" ));
 
-    for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+    for ( ss = 0; af_style_classes[ss]; ss++ )
     {
-      AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[ss];
+      AF_StyleClass  style_class = af_style_classes[ss];
       FT_UInt        count       = 0;
       FT_Long        idx;
 
@@ -397,9 +392,9 @@
         if ( globals->metrics[nn] )
         {
           AF_StyleClass          style_class =
-            AF_STYLE_CLASSES_GET[nn];
+            af_style_classes[nn];
           AF_WritingSystemClass  writing_system_class =
-            AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
+            af_writing_system_classes[style_class->writing_system];
 
 
           if ( writing_system_class->style_metrics_done )
@@ -448,8 +443,8 @@
       style = (AF_Style)( globals->glyph_styles[gindex] &
                           AF_STYLE_UNASSIGNED           );
 
-    style_class          = AF_STYLE_CLASSES_GET[style];
-    writing_system_class = AF_WRITING_SYSTEM_CLASSES_GET
+    style_class          = af_style_classes[style];
+    writing_system_class = af_writing_system_classes
                              [style_class->writing_system];
 
     metrics = globals->metrics[style];
@@ -494,9 +489,9 @@
                             FT_UInt         gindex )
   {
     if ( gindex < (FT_ULong)globals->glyph_count )
-      return (FT_Bool)( globals->glyph_styles[gindex] & AF_DIGIT );
+      return FT_BOOL( globals->glyph_styles[gindex] & AF_DIGIT );
 
-    return (FT_Bool)0;
+    return FT_BOOL( 0 );
   }
 
 
diff --git a/thirdparty/freetype/src/autofit/afglobal.h b/thirdparty/freetype/src/autofit/afglobal.h
index 489ed46d9e..52f38350db 100644
--- a/thirdparty/freetype/src/autofit/afglobal.h
+++ b/thirdparty/freetype/src/autofit/afglobal.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afglobal.h                                                             */
-/*                                                                         */
-/*    Auto-fitter routines to compute global hinting values                */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afglobal.h
+ *
+ *   Auto-fitter routines to compute global hinting values
+ *   (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFGLOBAL_H_
@@ -60,8 +60,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  Default values and flags for both autofitter globals (found in
-   *  AF_ModuleRec) and face globals (in AF_FaceGlobalsRec).
+   * Default values and flags for both autofitter globals (found in
+   * AF_ModuleRec) and face globals (in AF_FaceGlobalsRec).
    */
 
   /* index of fallback style in `af_style_classes' */
@@ -98,8 +98,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  Note that glyph_styles[] maps each glyph to an index into the
-   *  `af_style_classes' array.
+   * Note that glyph_styles[] maps each glyph to an index into the
+   * `af_style_classes' array.
    *
    */
   typedef struct  AF_FaceGlobalsRec_
@@ -140,8 +140,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  model the global hints data for a given face, decomposed into
-   *  style-specific items
+   * model the global hints data for a given face, decomposed into
+   * style-specific items
    */
 
   FT_LOCAL( FT_Error )
diff --git a/thirdparty/freetype/src/autofit/afhints.c b/thirdparty/freetype/src/autofit/afhints.c
index 0666dbc8e2..ed111c4117 100644
--- a/thirdparty/freetype/src/autofit/afhints.c
+++ b/thirdparty/freetype/src/autofit/afhints.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afhints.c                                                              */
-/*                                                                         */
-/*    Auto-fitter hinting routines (body).                                 */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afhints.c
+ *
+ *   Auto-fitter hinting routines (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "afhints.h"
@@ -22,14 +22,14 @@
 #include FT_INTERNAL_DEBUG_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_afhints
+#define FT_COMPONENT  afhints
 
 
   /* Get new segment for given axis. */
@@ -297,6 +297,19 @@
   }
 
 
+  static int
+  af_get_strong_edge_index( AF_GlyphHints  hints,
+                            AF_Edge*       strong_edges,
+                            int            dimension )
+  {
+    AF_AxisHints  axis  = &hints->axis[dimension];
+    AF_Edge       edges = axis->edges;
+
+
+    return AF_INDEX_NUM( strong_edges[dimension], edges );
+  }
+
+
 #ifdef __cplusplus
   extern "C" {
 #endif
@@ -317,8 +330,10 @@
     {
       AF_DUMP(( "  index  hedge  hseg  vedge  vseg  flags "
              /* "  XXXXX  XXXXX XXXXX  XXXXX XXXXX  XXXXXX" */
-                "  xorg  yorg  xscale  yscale   xfit    yfit" ));
+                "  xorg  yorg  xscale  yscale   xfit    yfit "
              /* " XXXXX XXXXX XXXX.XX XXXX.XX XXXX.XX XXXX.XX" */
+                "  hbef  haft  vbef  vaft" ));
+             /* " XXXXX XXXXX XXXXX XXXXX" */
     }
     else
       AF_DUMP(( "  (none)\n" ));
@@ -330,6 +345,7 @@
       int  segment_idx_1 = af_get_segment_index( hints, point_idx, 1 );
 
       char  buf1[16], buf2[16], buf3[16], buf4[16];
+      char  buf5[16], buf6[16], buf7[16], buf8[16];
 
 
       /* insert extra newline at the beginning of a contour */
@@ -340,7 +356,8 @@
       }
 
       AF_DUMP(( "  %5d  %5s %5s  %5s %5s  %s"
-                " %5d %5d %7.2f %7.2f %7.2f %7.2f\n",
+                " %5d %5d %7.2f %7.2f %7.2f %7.2f"
+                " %5s %5s %5s %5s\n",
                 point_idx,
                 af_print_idx( buf1,
                               af_get_edge_index( hints, segment_idx_1, 1 ) ),
@@ -359,7 +376,20 @@
                 point->ox / 64.0,
                 point->oy / 64.0,
                 point->x / 64.0,
-                point->y / 64.0 ));
+                point->y / 64.0,
+
+                af_print_idx( buf5, af_get_strong_edge_index( hints,
+                                                              point->before,
+                                                              1 ) ),
+                af_print_idx( buf6, af_get_strong_edge_index( hints,
+                                                              point->after,
+                                                              1 ) ),
+                af_print_idx( buf7, af_get_strong_edge_index( hints,
+                                                              point->before,
+                                                              0 ) ),
+                af_print_idx( buf8, af_get_strong_edge_index( hints,
+                                                              point->after,
+                                                              0 ) ) ));
     }
     AF_DUMP(( "\n" ));
   }
@@ -519,7 +549,7 @@
     *offset  = ( dim == AF_DIMENSION_HORZ ) ? seg->first->fx
                                             : seg->first->fy;
     if ( seg->edge )
-      *is_blue = (FT_Bool)( seg->edge->blue_edge != 0 );
+      *is_blue = FT_BOOL( seg->edge->blue_edge );
     else
       *is_blue = FALSE;
 
@@ -558,8 +588,8 @@
 
 
       /*
-       *  note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
-       *        since they have a constant X coordinate.
+       * note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
+       *       since they have a constant X coordinate.
        */
       if ( dimension == AF_DIMENSION_HORZ )
         AF_DUMP(( "Table of %s edges (1px=%.2fu, 10u=%.2fpx):\n",
@@ -681,8 +711,8 @@
     memory = hints->memory;
 
     /*
-     *  note that we don't need to free the segment and edge
-     *  buffers since they are really within the hints->points array
+     * note that we don't need to free the segment and edge
+     * buffers since they are really within the hints->points array
      */
     for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
     {
@@ -776,9 +806,9 @@
     }
 
     /*
-     *  then reallocate the points arrays if necessary --
-     *  note that we reserve two additional point positions, used to
-     *  hint metrics appropriately
+     * then reallocate the points arrays if necessary --
+     * note that we reserve two additional point positions, used to
+     * hint metrics appropriately
      */
     new_max = (FT_UInt)( outline->n_points + 2 );
     old_max = (FT_UInt)hints->max_points;
@@ -898,6 +928,14 @@
               prev     = end;
             }
           }
+
+#ifdef FT_DEBUG_AUTOFIT
+          point->before[0] = NULL;
+          point->before[1] = NULL;
+          point->after[0]  = NULL;
+          point->after[1]  = NULL;
+#endif
+
         }
       }
 
@@ -918,15 +956,15 @@
 
       {
         /*
-         *  Compute directions of `in' and `out' vectors.
+         * Compute directions of `in' and `out' vectors.
          *
-         *  Note that distances between points that are very near to each
-         *  other are accumulated.  In other words, the auto-hinter either
-         *  prepends the small vectors between near points to the first
-         *  non-near vector, or the sum of small vector lengths exceeds a
-         *  threshold, thus `grouping' the small vectors.  All intermediate
-         *  points are tagged as weak; the directions are adjusted also to
-         *  be equal to the accumulated one.
+         * Note that distances between points that are very near to each
+         * other are accumulated.  In other words, the auto-hinter either
+         * prepends the small vectors between near points to the first
+         * non-near vector, or the sum of small vector lengths exceeds a
+         * threshold, thus `grouping' the small vectors.  All intermediate
+         * points are tagged as weak; the directions are adjusted also to
+         * be equal to the accumulated one.
          */
 
         FT_Int  near_limit2 = 2 * near_limit - 1;
@@ -956,12 +994,12 @@
             out_y = point->fy - prev->fy;
 
             /*
-             *  We use Taxicab metrics to measure the vector length.
+             * We use Taxicab metrics to measure the vector length.
              *
-             *  Note that the accumulated distances so far could have the
-             *  opposite direction of the distance measured here.  For this
-             *  reason we use `near_limit2' for the comparison to get a
-             *  non-near point even in the worst case.
+             * Note that the accumulated distances so far could have the
+             * opposite direction of the distance measured here.  For this
+             * reason we use `near_limit2' for the comparison to get a
+             * non-near point even in the worst case.
              */
             if ( FT_ABS( out_x ) + FT_ABS( out_y ) >= near_limit2 )
               break;
@@ -979,11 +1017,11 @@
           curr = first;
 
           /*
-           *  We abuse the `u' and `v' fields to store index deltas to the
-           *  next and previous non-near point, respectively.
+           * We abuse the `u' and `v' fields to store index deltas to the
+           * next and previous non-near point, respectively.
            *
-           *  To avoid problems with not having non-near points, we point to
-           *  `first' by default as the next non-near point.
+           * To avoid problems with not having non-near points, we point to
+           * `first' by default as the next non-near point.
            *
            */
           curr->u  = (FT_Pos)( first - curr );
@@ -1035,12 +1073,12 @@
         }
 
         /*
-         *  The next step is to `simplify' an outline's topology so that we
-         *  can identify local extrema more reliably: A series of
-         *  non-horizontal or non-vertical vectors pointing into the same
-         *  quadrant are handled as a single, long vector.  From a
-         *  topological point of the view, the intermediate points are of no
-         *  interest and thus tagged as weak.
+         * The next step is to `simplify' an outline's topology so that we
+         * can identify local extrema more reliably: A series of
+         * non-horizontal or non-vertical vectors pointing into the same
+         * quadrant are handled as a single, long vector.  From a
+         * topological point of the view, the intermediate points are of no
+         * interest and thus tagged as weak.
          */
 
         for ( point = points; point < point_limit; point++ )
@@ -1080,9 +1118,9 @@
         }
 
         /*
-         *  Finally, check for remaining weak points.  Everything else not
-         *  collected in edges so far is then implicitly classified as strong
-         *  points.
+         * Finally, check for remaining weak points.  Everything else not
+         * collected in edges so far is then implicitly classified as strong
+         * points.
          */
 
         for ( point = points; point < point_limit; point++ )
@@ -1309,6 +1347,12 @@
         if ( delta >= 0 )
         {
           u = edge->pos - ( edge->opos - ou );
+
+#ifdef FT_DEBUG_AUTOFIT
+          point->before[dim] = edge;
+          point->after[dim]  = NULL;
+#endif
+
           goto Store_Point;
         }
 
@@ -1318,6 +1362,12 @@
         if ( delta >= 0 )
         {
           u = edge->pos + ( ou - edge->opos );
+
+#ifdef FT_DEBUG_AUTOFIT
+          point->before[dim] = NULL;
+          point->after[dim]  = edge;
+#endif
+
           goto Store_Point;
         }
 
@@ -1364,6 +1414,12 @@
             {
               /* we are on the edge */
               u = edge->pos;
+
+#ifdef FT_DEBUG_AUTOFIT
+              point->before[dim] = NULL;
+              point->after[dim]  = NULL;
+#endif
+
               goto Store_Point;
             }
           }
@@ -1374,6 +1430,11 @@
             AF_Edge  after  = edges + min + 0;
 
 
+#ifdef FT_DEBUG_AUTOFIT
+            point->before[dim] = before;
+            point->after[dim]  = after;
+#endif
+
             /* assert( before && after && before != after ) */
             if ( before->scale == 0 )
               before->scale = FT_DivFix( after->pos - before->pos,
diff --git a/thirdparty/freetype/src/autofit/afhints.h b/thirdparty/freetype/src/autofit/afhints.h
index 3326ebc44e..e0cf612f0c 100644
--- a/thirdparty/freetype/src/autofit/afhints.h
+++ b/thirdparty/freetype/src/autofit/afhints.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afhints.h                                                              */
-/*                                                                         */
-/*    Auto-fitter hinting routines (specification).                        */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afhints.h
+ *
+ *   Auto-fitter hinting routines (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFHINTS_H_
@@ -26,8 +26,8 @@
 FT_BEGIN_HEADER
 
   /*
-   *  The definition of outline glyph hints.  These are shared by all
-   *  writing system analysis routines (until now).
+   * The definition of outline glyph hints.  These are shared by all
+   * writing system analysis routines (until now).
    */
 
   typedef enum  AF_Dimension_
@@ -56,153 +56,153 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  The following explanations are mostly taken from the article
+   * The following explanations are mostly taken from the article
    *
-   *    Real-Time Grid Fitting of Typographic Outlines
+   *   Real-Time Grid Fitting of Typographic Outlines
    *
-   *  by David Turner and Werner Lemberg
+   * by David Turner and Werner Lemberg
    *
-   *    https://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf
+   *   https://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf
    *
-   *  with appropriate updates.
+   * with appropriate updates.
    *
    *
-   *  Segments
+   * Segments
    *
-   *    `af_{cjk,latin,...}_hints_compute_segments' are the functions to
-   *    find segments in an outline.
+   *   `af_{cjk,latin,...}_hints_compute_segments' are the functions to
+   *   find segments in an outline.
    *
-   *    A segment is a series of at least two consecutive points that are
-   *    approximately aligned along a coordinate axis.  The analysis to do
-   *    so is specific to a writing system.
+   *   A segment is a series of at least two consecutive points that are
+   *   approximately aligned along a coordinate axis.  The analysis to do
+   *   so is specific to a writing system.
    *
    *
-   *  Edges
+   * Edges
    *
-   *    `af_{cjk,latin,...}_hints_compute_edges' are the functions to find
-   *    edges.
+   *   `af_{cjk,latin,...}_hints_compute_edges' are the functions to find
+   *   edges.
    *
-   *    As soon as segments are defined, the auto-hinter groups them into
-   *    edges.  An edge corresponds to a single position on the main
-   *    dimension that collects one or more segments (allowing for a small
-   *    threshold).
+   *   As soon as segments are defined, the auto-hinter groups them into
+   *   edges.  An edge corresponds to a single position on the main
+   *   dimension that collects one or more segments (allowing for a small
+   *   threshold).
    *
-   *    As an example, the `latin' writing system first tries to grid-fit
-   *    edges, then to align segments on the edges unless it detects that
-   *    they form a serif.
+   *   As an example, the `latin' writing system first tries to grid-fit
+   *   edges, then to align segments on the edges unless it detects that
+   *   they form a serif.
    *
    *
-   *                      A          H
-   *                       |        |
-   *                       |        |
-   *                       |        |
-   *                       |        |
-   *         C             |        |             F
-   *          +------<-----+        +-----<------+
-   *          |             B      G             |
-   *          |                                  |
-   *          |                                  |
-   *          +--------------->------------------+
-   *         D                                    E
+   *                     A          H
+   *                      |        |
+   *                      |        |
+   *                      |        |
+   *                      |        |
+   *        C             |        |             F
+   *         +------<-----+        +-----<------+
+   *         |             B      G             |
+   *         |                                  |
+   *         |                                  |
+   *         +--------------->------------------+
+   *        D                                    E
    *
    *
-   *  Stems
+   * Stems
    *
-   *    Stems are detected by `af_{cjk,latin,...}_hint_edges'.
+   *   Stems are detected by `af_{cjk,latin,...}_hint_edges'.
    *
-   *    Segments need to be `linked' to other ones in order to detect stems.
-   *    A stem is made of two segments that face each other in opposite
-   *    directions and that are sufficiently close to each other.  Using
-   *    vocabulary from the TrueType specification, stem segments form a
-   *    `black distance'.
+   *   Segments need to be `linked' to other ones in order to detect stems.
+   *   A stem is made of two segments that face each other in opposite
+   *   directions and that are sufficiently close to each other.  Using
+   *   vocabulary from the TrueType specification, stem segments form a
+   *   `black distance'.
    *
-   *    In the above ASCII drawing, the horizontal segments are BC, DE, and
-   *    FG; the vertical segments are AB, CD, EF, and GH.
+   *   In the above ASCII drawing, the horizontal segments are BC, DE, and
+   *   FG; the vertical segments are AB, CD, EF, and GH.
    *
-   *    Each segment has at most one `best' candidate to form a black
-   *    distance, or no candidate at all.  Notice that two distinct segments
-   *    can have the same candidate, which frequently means a serif.
+   *   Each segment has at most one `best' candidate to form a black
+   *   distance, or no candidate at all.  Notice that two distinct segments
+   *   can have the same candidate, which frequently means a serif.
    *
-   *    A stem is recognized by the following condition:
+   *   A stem is recognized by the following condition:
    *
-   *      best segment_1 = segment_2 && best segment_2 = segment_1
+   *     best segment_1 = segment_2 && best segment_2 = segment_1
    *
-   *    The best candidate is stored in field `link' in structure
-   *    `AF_Segment'.
+   *   The best candidate is stored in field `link' in structure
+   *   `AF_Segment'.
    *
-   *    In the above ASCII drawing, the best candidate for both AB and CD is
-   *    GH, while the best candidate for GH is AB.  Similarly, the best
-   *    candidate for EF and GH is AB, while the best candidate for AB is
-   *    GH.
+   *   In the above ASCII drawing, the best candidate for both AB and CD is
+   *   GH, while the best candidate for GH is AB.  Similarly, the best
+   *   candidate for EF and GH is AB, while the best candidate for AB is
+   *   GH.
    *
-   *    The detection and handling of stems is dependent on the writing
-   *    system.
+   *   The detection and handling of stems is dependent on the writing
+   *   system.
    *
    *
-   *  Serifs
+   * Serifs
    *
-   *    Serifs are detected by `af_{cjk,latin,...}_hint_edges'.
+   *   Serifs are detected by `af_{cjk,latin,...}_hint_edges'.
    *
-   *    In comparison to a stem, a serif (as handled by the auto-hinter
-   *    module that takes care of the `latin' writing system) has
+   *   In comparison to a stem, a serif (as handled by the auto-hinter
+   *   module that takes care of the `latin' writing system) has
    *
-   *      best segment_1 = segment_2 && best segment_2 != segment_1
+   *     best segment_1 = segment_2 && best segment_2 != segment_1
    *
-   *    where segment_1 corresponds to the serif segment (CD and EF in the
-   *    above ASCII drawing).
+   *   where segment_1 corresponds to the serif segment (CD and EF in the
+   *   above ASCII drawing).
    *
-   *    The best candidate is stored in field `serif' in structure
-   *    `AF_Segment' (and `link' is set to NULL).
+   *   The best candidate is stored in field `serif' in structure
+   *   `AF_Segment' (and `link' is set to NULL).
    *
    *
-   *  Touched points
+   * Touched points
    *
-   *    A point is called `touched' if it has been processed somehow by the
-   *    auto-hinter.  It basically means that it shouldn't be moved again
-   *    (or moved only under certain constraints to preserve the already
-   *    applied processing).
+   *   A point is called `touched' if it has been processed somehow by the
+   *   auto-hinter.  It basically means that it shouldn't be moved again
+   *   (or moved only under certain constraints to preserve the already
+   *   applied processing).
    *
    *
-   *  Flat and round segments
+   * Flat and round segments
    *
-   *    Segments are `round' or `flat', depending on the series of points
-   *    that define them.  A segment is round if the next and previous point
-   *    of an extremum (which can be either a single point or sequence of
-   *    points) are both conic or cubic control points.  Otherwise, a
-   *    segment with an extremum is flat.
+   *   Segments are `round' or `flat', depending on the series of points
+   *   that define them.  A segment is round if the next and previous point
+   *   of an extremum (which can be either a single point or sequence of
+   *   points) are both conic or cubic control points.  Otherwise, a
+   *   segment with an extremum is flat.
    *
    *
-   *  Strong Points
+   * Strong Points
    *
-   *    Experience has shown that points not part of an edge need to be
-   *    interpolated linearly between their two closest edges, even if these
-   *    are not part of the contour of those particular points.  Typical
-   *    candidates for this are
+   *   Experience has shown that points not part of an edge need to be
+   *   interpolated linearly between their two closest edges, even if these
+   *   are not part of the contour of those particular points.  Typical
+   *   candidates for this are
    *
-   *    - angle points (i.e., points where the `in' and `out' direction
-   *      differ greatly)
+   *   - angle points (i.e., points where the `in' and `out' direction
+   *     differ greatly)
    *
-   *    - inflection points (i.e., where the `in' and `out' angles are the
-   *      same, but the curvature changes sign) [currently, such points
-   *      aren't handled specially in the auto-hinter]
+   *   - inflection points (i.e., where the `in' and `out' angles are the
+   *     same, but the curvature changes sign) [currently, such points
+   *     aren't handled specially in the auto-hinter]
    *
-   *    `af_glyph_hints_align_strong_points' is the function that takes
-   *    care of such situations; it is equivalent to the TrueType `IP'
-   *    hinting instruction.
+   *   `af_glyph_hints_align_strong_points' is the function that takes
+   *   care of such situations; it is equivalent to the TrueType `IP'
+   *   hinting instruction.
    *
    *
-   *  Weak Points
+   * Weak Points
    *
-   *    Other points in the outline must be interpolated using the
-   *    coordinates of their previous and next unfitted contour neighbours.
-   *    These are called `weak points' and are touched by the function
-   *    `af_glyph_hints_align_weak_points', equivalent to the TrueType `IUP'
-   *    hinting instruction.  Typical candidates are control points and
-   *    points on the contour without a major direction.
+   *   Other points in the outline must be interpolated using the
+   *   coordinates of their previous and next unfitted contour neighbours.
+   *   These are called `weak points' and are touched by the function
+   *   `af_glyph_hints_align_weak_points', equivalent to the TrueType `IUP'
+   *   hinting instruction.  Typical candidates are control points and
+   *   points on the contour without a major direction.
    *
-   *    The major effect is to reduce possible distortion caused by
-   *    alignment of edges and strong points, thus weak points are processed
-   *    after strong points.
+   *   The major effect is to reduce possible distortion caused by
+   *   alignment of edges and strong points, thus weak points are processed
+   *   after strong points.
    */
 
 
@@ -252,6 +252,12 @@ FT_BEGIN_HEADER
     AF_Point   next;     /* next point in contour     */
     AF_Point   prev;     /* previous point in contour */
 
+#ifdef FT_DEBUG_AUTOFIT
+    /* track `before' and `after' edges for strong points */
+    AF_Edge    before[2];
+    AF_Edge    after[2];
+#endif
+
   } AF_PointRec;
 
 
diff --git a/thirdparty/freetype/src/autofit/afindic.c b/thirdparty/freetype/src/autofit/afindic.c
index dfbea5f34c..a17117c712 100644
--- a/thirdparty/freetype/src/autofit/afindic.c
+++ b/thirdparty/freetype/src/autofit/afindic.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afindic.c                                                              */
-/*                                                                         */
-/*    Auto-fitter hinting routines for Indic writing system (body).        */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.    */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afindic.c
+ *
+ *   Auto-fitter hinting routines for Indic writing system (body).
+ *
+ * Copyright (C) 2007-2019 by
+ * Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "aftypes.h"
diff --git a/thirdparty/freetype/src/autofit/afindic.h b/thirdparty/freetype/src/autofit/afindic.h
index 5688738e6e..bc5bc59fa5 100644
--- a/thirdparty/freetype/src/autofit/afindic.h
+++ b/thirdparty/freetype/src/autofit/afindic.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afindic.h                                                              */
-/*                                                                         */
-/*    Auto-fitter hinting routines for Indic writing system                */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.    */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afindic.h
+ *
+ *   Auto-fitter hinting routines for Indic writing system
+ *   (specification).
+ *
+ * Copyright (C) 2007-2019 by
+ * Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFINDIC_H_
diff --git a/thirdparty/freetype/src/autofit/aflatin.c b/thirdparty/freetype/src/autofit/aflatin.c
index 9f1b54056f..dccdcaf345 100644
--- a/thirdparty/freetype/src/autofit/aflatin.c
+++ b/thirdparty/freetype/src/autofit/aflatin.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  aflatin.c                                                              */
-/*                                                                         */
-/*    Auto-fitter hinting routines for latin writing system (body).        */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * aflatin.c
+ *
+ *   Auto-fitter hinting routines for latin writing system (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -21,7 +21,6 @@
 #include FT_INTERNAL_DEBUG_H
 
 #include "afglobal.h"
-#include "afpic.h"
 #include "aflatin.h"
 #include "aferrors.h"
 
@@ -31,14 +30,14 @@
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_aflatin
+#define FT_COMPONENT  aflatin
 
 
   /* needed for computation of round vs. flat segments */
@@ -83,24 +82,30 @@
       AF_LatinMetricsRec  dummy[1];
       AF_Scaler           scaler = &dummy->root.scaler;
 
-#ifdef FT_CONFIG_OPTION_PIC
-      AF_FaceGlobals  globals = metrics->root.globals;
-#endif
-
       AF_StyleClass   style_class  = metrics->root.style_class;
-      AF_ScriptClass  script_class = AF_SCRIPT_CLASSES_GET
-                                       [style_class->script];
+      AF_ScriptClass  script_class = af_script_classes[style_class->script];
+
+      /* If HarfBuzz is not available, we need a pointer to a single */
+      /* unsigned long value.                                        */
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+      void*     shaper_buf;
+#else
+      FT_ULong  shaper_buf_;
+      void*     shaper_buf = &shaper_buf_;
+#endif
 
-      void*        shaper_buf;
       const char*  p;
 
 #ifdef FT_DEBUG_LEVEL_TRACE
       FT_ULong  ch = 0;
 #endif
 
-      p          = script_class->standard_charstring;
-      shaper_buf = af_shaper_buf_create( face );
 
+      p = script_class->standard_charstring;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+      shaper_buf = af_shaper_buf_create( face );
+#endif
       /*
        * We check a list of standard characters to catch features like
        * `c2sc' (small caps from caps) that don't contain lowercase letters
@@ -186,10 +191,10 @@
           goto Exit;
 
         /*
-         *  We assume that the glyphs selected for the stem width
-         *  computation are `featureless' enough so that the linking
-         *  algorithm works fine without adjustments of its scoring
-         *  function.
+         * We assume that the glyphs selected for the stem width
+         * computation are `featureless' enough so that the linking
+         * algorithm works fine without adjustments of its scoring
+         * function.
          */
         af_latin_hints_link_segments( hints,
                                       0,
@@ -329,7 +334,14 @@
 
     FT_Pos  flat_threshold = FLAT_THRESHOLD( metrics->units_per_em );
 
-    void*  shaper_buf;
+    /* If HarfBuzz is not available, we need a pointer to a single */
+    /* unsigned long value.                                        */
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+    void*     shaper_buf;
+#else
+    FT_ULong  shaper_buf_;
+    void*     shaper_buf = &shaper_buf_;
+#endif
 
 
     /* we walk over the blue character strings as specified in the */
@@ -339,7 +351,9 @@
                 "============================\n"
                 "\n" ));
 
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
     shaper_buf = af_shaper_buf_create( face );
+#endif
 
     for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
     {
@@ -884,8 +898,8 @@
       if ( num_flats == 0 && num_rounds == 0 )
       {
         /*
-         *  we couldn't find a single glyph to compute this blue zone,
-         *  we will simply ignore it then
+         * we couldn't find a single glyph to compute this blue zone,
+         * we will simply ignore it then
          */
         FT_TRACE5(( "  empty\n" ));
         continue;
@@ -1036,15 +1050,25 @@
     FT_Bool   started = 0, same_width = 1;
     FT_Fixed  advance = 0, old_advance = 0;
 
-    void*  shaper_buf;
+    /* If HarfBuzz is not available, we need a pointer to a single */
+    /* unsigned long value.                                        */
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
+    void*     shaper_buf;
+#else
+    FT_ULong  shaper_buf_;
+    void*     shaper_buf = &shaper_buf_;
+#endif
 
     /* in all supported charmaps, digits have character codes 0x30-0x39 */
     const char   digits[] = "0 1 2 3 4 5 6 7 8 9";
     const char*  p;
 
 
-    p          = digits;
+    p = digits;
+
+#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
     shaper_buf = af_shaper_buf_create( face );
+#endif
 
     while ( *p )
     {
@@ -1283,7 +1307,7 @@
     /* an extra-light axis corresponds to a standard width that is */
     /* smaller than 5/8 pixels                                     */
     axis->extra_light =
-      (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
+      FT_BOOL( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
 
 #ifdef FT_DEBUG_LEVEL_TRACE
     if ( axis->extra_light )
@@ -1967,17 +1991,17 @@
           if ( len >= len_threshold )
           {
             /*
-             *  The score is the sum of two demerits indicating the
-             *  `badness' of a fit, measured along the segments' main axis
-             *  and orthogonal to it, respectively.
+             * The score is the sum of two demerits indicating the
+             * `badness' of a fit, measured along the segments' main axis
+             * and orthogonal to it, respectively.
              *
-             *  o The less overlapping along the main axis, the worse it
-             *    is, causing a larger demerit.
+             * - The less overlapping along the main axis, the worse it
+             *   is, causing a larger demerit.
              *
-             *  o The nearer the orthogonal distance to a stem width, the
-             *    better it is, causing a smaller demerit.  For simplicity,
-             *    however, we only increase the demerit for values that
-             *    exceed the largest stem width.
+             * - The nearer the orthogonal distance to a stem width, the
+             *   better it is, causing a smaller demerit.  For simplicity,
+             *   however, we only increase the demerit for values that
+             *   exceed the largest stem width.
              */
 
             FT_Pos  dist = pos2 - pos1;
@@ -2049,13 +2073,8 @@
     FT_Memory     memory = hints->memory;
     AF_LatinAxis  laxis  = &((AF_LatinMetrics)hints->metrics)->axis[dim];
 
-#ifdef FT_CONFIG_OPTION_PIC
-    AF_FaceGlobals  globals = hints->metrics->globals;
-#endif
-
     AF_StyleClass   style_class  = hints->metrics->style_class;
-    AF_ScriptClass  script_class = AF_SCRIPT_CLASSES_GET
-                                     [style_class->script];
+    AF_ScriptClass  script_class = af_script_classes[style_class->script];
 
     FT_Bool  top_to_bottom_hinting = 0;
 
@@ -2086,9 +2105,9 @@
       top_to_bottom_hinting = script_class->top_to_bottom_hinting;
 
     /*
-     *  We ignore all segments that are less than 1 pixel in length
-     *  to avoid many problems with serif fonts.  We compute the
-     *  corresponding threshold in font units.
+     * We ignore all segments that are less than 1 pixel in length
+     * to avoid many problems with serif fonts.  We compute the
+     * corresponding threshold in font units.
      */
     if ( dim == AF_DIMENSION_HORZ )
       segment_length_threshold = FT_DivFix( 64, hints->y_scale );
@@ -2096,26 +2115,26 @@
       segment_length_threshold = 0;
 
     /*
-     *  Similarly, we ignore segments that have a width delta
-     *  larger than 0.5px (i.e., a width larger than 1px).
+     * Similarly, we ignore segments that have a width delta
+     * larger than 0.5px (i.e., a width larger than 1px).
      */
     segment_width_threshold = FT_DivFix( 32, scale );
 
-    /*********************************************************************/
-    /*                                                                   */
-    /* We begin by generating a sorted table of edges for the current    */
-    /* direction.  To do so, we simply scan each segment and try to find */
-    /* an edge in our table that corresponds to its position.            */
-    /*                                                                   */
-    /* If no edge is found, we create and insert a new edge in the       */
-    /* sorted table.  Otherwise, we simply add the segment to the edge's */
-    /* list which gets processed in the second step to compute the       */
-    /* edge's properties.                                                */
-    /*                                                                   */
-    /* Note that the table of edges is sorted along the segment/edge     */
-    /* position.                                                         */
-    /*                                                                   */
-    /*********************************************************************/
+    /**********************************************************************
+     *
+     * We begin by generating a sorted table of edges for the current
+     * direction.  To do so, we simply scan each segment and try to find
+     * an edge in our table that corresponds to its position.
+     *
+     * If no edge is found, we create and insert a new edge in the
+     * sorted table.  Otherwise, we simply add the segment to the edge's
+     * list which gets processed in the second step to compute the
+     * edge's properties.
+     *
+     * Note that the table of edges is sorted along the segment/edge
+     * position.
+     *
+     */
 
     /* assure that edge distance threshold is at most 0.25px */
     edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
@@ -2237,17 +2256,17 @@
     }
 
 
-    /******************************************************************/
-    /*                                                                */
-    /* Good, we now compute each edge's properties according to the   */
-    /* segments found on its position.  Basically, these are          */
-    /*                                                                */
-    /*  - the edge's main direction                                   */
-    /*  - stem edge, serif edge or both (which defaults to stem then) */
-    /*  - rounded edge, straight or both (which defaults to straight) */
-    /*  - link for edge                                               */
-    /*                                                                */
-    /******************************************************************/
+    /*******************************************************************
+     *
+     * Good, we now compute each edge's properties according to the
+     * segments found on its position.  Basically, these are
+     *
+     * - the edge's main direction
+     * - stem edge, serif edge or both (which defaults to stem then)
+     * - rounded edge, straight or both (which defaults to straight)
+     * - link for edge
+     *
+     */
 
     /* first of all, set the `edge' field in each segment -- this is */
     /* required in order to compute edge links                       */
@@ -2309,9 +2328,9 @@
 
           /* check for links -- if seg->serif is set, then seg->link must */
           /* be ignored                                                   */
-          is_serif = (FT_Bool)( seg->serif               &&
-                                seg->serif->edge         &&
-                                seg->serif->edge != edge );
+          is_serif = FT_BOOL( seg->serif               &&
+                              seg->serif->edge         &&
+                              seg->serif->edge != edge );
 
           if ( ( seg->link && seg->link->edge ) || is_serif )
           {
@@ -2546,8 +2565,8 @@
     af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
 
     /*
-     *  correct x_scale and y_scale if needed, since they may have
-     *  been modified by `af_latin_metrics_scale_dim' above
+     * correct x_scale and y_scale if needed, since they may have
+     * been modified by `af_latin_metrics_scale_dim' above
      */
     hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
     hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
@@ -2566,21 +2585,21 @@
     other_flags  = 0;
 
     /*
-     *  We snap the width of vertical stems for the monochrome and
-     *  horizontal LCD rendering targets only.
+     * We snap the width of vertical stems for the monochrome and
+     * horizontal LCD rendering targets only.
      */
     if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
       other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
 
     /*
-     *  We snap the width of horizontal stems for the monochrome and
-     *  vertical LCD rendering targets only.
+     * We snap the width of horizontal stems for the monochrome and
+     * vertical LCD rendering targets only.
      */
     if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
       other_flags |= AF_LATIN_HINTS_VERT_SNAP;
 
     /*
-     *  We adjust stems to full pixels unless in `light' or `lcd' mode.
+     * We adjust stems to full pixels unless in `light' or `lcd' mode.
      */
     if ( mode != FT_RENDER_MODE_LIGHT && mode != FT_RENDER_MODE_LCD )
       other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
@@ -2589,11 +2608,11 @@
       other_flags |= AF_LATIN_HINTS_MONO;
 
     /*
-     *  In `light' or `lcd' mode we disable horizontal hinting completely.
-     *  We also do it if the face is italic.
+     * In `light' or `lcd' mode we disable horizontal hinting completely.
+     * We also do it if the face is italic.
      *
-     *  However, if warping is enabled (which only works in `light' hinting
-     *  mode), advance widths get adjusted, too.
+     * However, if warping is enabled (which only works in `light' hinting
+     * mode), advance widths get adjusted, too.
      */
     if ( mode == FT_RENDER_MODE_LIGHT || mode == FT_RENDER_MODE_LCD ||
          ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0          )
@@ -2936,13 +2955,8 @@
     AF_Edge       anchor     = NULL;
     FT_Int        has_serifs = 0;
 
-#ifdef FT_CONFIG_OPTION_PIC
-    AF_FaceGlobals  globals = hints->metrics->globals;
-#endif
-
     AF_StyleClass   style_class  = hints->metrics->style_class;
-    AF_ScriptClass  script_class = AF_SCRIPT_CLASSES_GET
-                                     [style_class->script];
+    AF_ScriptClass  script_class = af_script_classes[style_class->script];
 
     FT_Bool  top_to_bottom_hinting = 0;
 
@@ -2976,12 +2990,12 @@
         edge2 = edge->link;
 
         /*
-         *  If a stem contains both a neutral and a non-neutral blue zone,
-         *  skip the neutral one.  Otherwise, outlines with different
-         *  directions might be incorrectly aligned at the same vertical
-         *  position.
+         * If a stem contains both a neutral and a non-neutral blue zone,
+         * skip the neutral one.  Otherwise, outlines with different
+         * directions might be incorrectly aligned at the same vertical
+         * position.
          *
-         *  If we have two neutral blue zones, skip one of them.
+         * If we have two neutral blue zones, skip one of them.
          *
          */
         if ( edge->blue_edge && edge2 && edge2->blue_edge )
@@ -3344,8 +3358,8 @@
     if ( has_serifs || !anchor )
     {
       /*
-       *  now hint the remaining edges (serifs and single) in order
-       *  to complete our processing
+       * now hint the remaining edges (serifs and single) in order
+       * to complete our processing
        */
       for ( edge = edges; edge < edge_limit; edge++ )
       {
diff --git a/thirdparty/freetype/src/autofit/aflatin.h b/thirdparty/freetype/src/autofit/aflatin.h
index 432cccce4e..40479538c2 100644
--- a/thirdparty/freetype/src/autofit/aflatin.h
+++ b/thirdparty/freetype/src/autofit/aflatin.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  aflatin.h                                                              */
-/*                                                                         */
-/*    Auto-fitter hinting routines for latin writing system                */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * aflatin.h
+ *
+ *   Auto-fitter hinting routines for latin writing system
+ *   (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFLATIN_H_
@@ -45,9 +45,9 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  The following declarations could be embedded in the file `aflatin.c';
-   *  they have been made semi-public to allow alternate writing system
-   *  hinters to re-use some of them.
+   * The following declarations could be embedded in the file `aflatin.c';
+   * they have been made semi-public to allow alternate writing system
+   * hinters to re-use some of them.
    */
 
 
@@ -161,8 +161,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  The next functions shouldn't normally be exported.  However, other
-   *  writing systems might like to use these functions as-is.
+   * The next functions shouldn't normally be exported.  However, other
+   * writing systems might like to use these functions as-is.
    */
   FT_LOCAL( FT_Error )
   af_latin_hints_compute_segments( AF_GlyphHints  hints,
diff --git a/thirdparty/freetype/src/autofit/aflatin2.c b/thirdparty/freetype/src/autofit/aflatin2.c
index 5c71378118..c601ab8d9a 100644
--- a/thirdparty/freetype/src/autofit/aflatin2.c
+++ b/thirdparty/freetype/src/autofit/aflatin2.c
@@ -3,22 +3,22 @@
 /*            marked as experimental.                                    */
 
 
-/***************************************************************************/
-/*                                                                         */
-/*  aflatin2.c                                                             */
-/*                                                                         */
-/*    Auto-fitter hinting routines for latin writing system (body).        */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * aflatin2.c
+ *
+ *   Auto-fitter hinting routines for latin writing system (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include FT_ADVANCES_H
@@ -37,14 +37,14 @@
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_aflatin2
+#define FT_COMPONENT  aflatin2
 
 
   FT_LOCAL_DEF( FT_Error )
@@ -265,7 +265,7 @@
             /* Avoid single-point contours since they are never rasterized. */
             /* In some fonts, they correspond to mark attachment points     */
             /* which are way outside of the glyph's real outline.           */
-            if ( last == first )
+            if ( last <= first )
                 continue;
 
             if ( AF_LATIN_IS_TOP_BLUE( bb ) )
@@ -299,6 +299,7 @@
         /* now check whether the point belongs to a straight or round   */
         /* segment; we first need to find in which contour the extremum */
         /* lies, then inspect its previous and next points              */
+        if ( best_point >= 0 )
         {
           FT_Pos  best_x = points[best_point].x;
           FT_Int  start, end, prev, next;
@@ -358,8 +359,8 @@
       if ( num_flats == 0 && num_rounds == 0 )
       {
         /*
-         *  we couldn't find a single glyph to compute this blue zone,
-         *  we will simply ignore it then
+         * we couldn't find a single glyph to compute this blue zone,
+         * we will simply ignore it then
          */
         FT_TRACE5(( "  empty\n" ));
         continue;
@@ -632,7 +633,7 @@
     /* an extra-light axis corresponds to a standard width that is */
     /* smaller than 5/8 pixels                                     */
     axis->extra_light =
-      (FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
+      FT_BOOL( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
 
     if ( dim == AF_DIMENSION_VERT )
     {
@@ -1108,13 +1109,13 @@
                                           : AF_DIR_RIGHT;
 
     /*
-     *  We want to ignore very small (mostly serif) segments, we do that
-     *  by ignoring those that whose length is less than a given fraction
-     *  of the standard width. If there is no standard width, we ignore
-     *  those that are less than a given size in pixels
+     * We want to ignore very small (mostly serif) segments, we do that
+     * by ignoring those that whose length is less than a given fraction
+     * of the standard width. If there is no standard width, we ignore
+     * those that are less than a given size in pixels
      *
-     *  also, unlink serif segments that are linked to segments farther
-     *  than 50% of the standard width
+     * also, unlink serif segments that are linked to segments farther
+     * than 50% of the standard width
      */
     if ( dim == AF_DIMENSION_HORZ )
     {
@@ -1126,21 +1127,21 @@
     else
       segment_length_threshold = 0;
 
-    /*********************************************************************/
-    /*                                                                   */
-    /* We will begin by generating a sorted table of edges for the       */
-    /* current direction.  To do so, we simply scan each segment and try */
-    /* to find an edge in our table that corresponds to its position.    */
-    /*                                                                   */
-    /* If no edge is found, we create and insert a new edge in the       */
-    /* sorted table.  Otherwise, we simply add the segment to the edge's */
-    /* list which will be processed in the second step to compute the    */
-    /* edge's properties.                                                */
-    /*                                                                   */
-    /* Note that the edges table is sorted along the segment/edge        */
-    /* position.                                                         */
-    /*                                                                   */
-    /*********************************************************************/
+    /**********************************************************************
+     *
+     * We will begin by generating a sorted table of edges for the
+     * current direction.  To do so, we simply scan each segment and try
+     * to find an edge in our table that corresponds to its position.
+     *
+     * If no edge is found, we create and insert a new edge in the
+     * sorted table.  Otherwise, we simply add the segment to the edge's
+     * list which will be processed in the second step to compute the
+     * edge's properties.
+     *
+     * Note that the edges table is sorted along the segment/edge
+     * position.
+     *
+     */
 
     edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
                                          scale );
@@ -1230,17 +1231,17 @@
     }
 
 
-    /*********************************************************************/
-    /*                                                                   */
-    /* Good, we will now compute each edge's properties according to     */
-    /* segments found on its position.  Basically, these are:            */
-    /*                                                                   */
-    /*  - edge's main direction                                          */
-    /*  - stem edge, serif edge or both (which defaults to stem then)    */
-    /*  - rounded edge, straight or both (which defaults to straight)    */
-    /*  - link for edge                                                  */
-    /*                                                                   */
-    /*********************************************************************/
+    /**********************************************************************
+     *
+     * Good, we will now compute each edge's properties according to
+     * segments found on its position.  Basically, these are:
+     *
+     * - edge's main direction
+     * - stem edge, serif edge or both (which defaults to stem then)
+     * - rounded edge, straight or both (which defaults to straight)
+     * - link for edge
+     *
+     */
 
     /* first of all, set the `edge' field in each segment -- this is */
     /* required in order to compute edge links                       */
@@ -1302,9 +1303,9 @@
 
           /* check for links -- if seg->serif is set, then seg->link must */
           /* be ignored                                                   */
-          is_serif = (FT_Bool)( seg->serif               &&
-                                seg->serif->edge         &&
-                                seg->serif->edge != edge );
+          is_serif = FT_BOOL( seg->serif               &&
+                              seg->serif->edge         &&
+                              seg->serif->edge != edge );
 
           if ( ( seg->link && seg->link->edge ) || is_serif )
           {
@@ -1524,8 +1525,8 @@
     af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
 
     /*
-     *  correct x_scale and y_scale if needed, since they may have
-     *  been modified `af_latin2_metrics_scale_dim' above
+     * correct x_scale and y_scale if needed, since they may have
+     * been modified `af_latin2_metrics_scale_dim' above
      */
     hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
     hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
@@ -1544,21 +1545,21 @@
     other_flags  = 0;
 
     /*
-     *  We snap the width of vertical stems for the monochrome and
-     *  horizontal LCD rendering targets only.
+     * We snap the width of vertical stems for the monochrome and
+     * horizontal LCD rendering targets only.
      */
     if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
       other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
 
     /*
-     *  We snap the width of horizontal stems for the monochrome and
-     *  vertical LCD rendering targets only.
+     * We snap the width of horizontal stems for the monochrome and
+     * vertical LCD rendering targets only.
      */
     if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
       other_flags |= AF_LATIN_HINTS_VERT_SNAP;
 
     /*
-     *  We adjust stems to full pixels unless in `light' or `lcd' mode.
+     * We adjust stems to full pixels unless in `light' or `lcd' mode.
      */
     if ( mode != FT_RENDER_MODE_LIGHT && mode != FT_RENDER_MODE_LCD )
       other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
@@ -1567,8 +1568,8 @@
       other_flags |= AF_LATIN_HINTS_MONO;
 
     /*
-     *  In `light' or `lcd' mode we disable horizontal hinting completely.
-     *  We also do it if the face is italic.
+     * In `light' or `lcd' mode we disable horizontal hinting completely.
+     * We also do it if the face is italic.
      */
     if ( mode == FT_RENDER_MODE_LIGHT || mode == FT_RENDER_MODE_LCD ||
          ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0          )
@@ -2233,8 +2234,8 @@
     if ( has_serifs || !anchor )
     {
       /*
-       *  now hint the remaining edges (serifs and single) in order
-       *  to complete our processing
+       * now hint the remaining edges (serifs and single) in order
+       * to complete our processing
        */
       for ( edge = edges; edge < edge_limit; edge++ )
       {
diff --git a/thirdparty/freetype/src/autofit/aflatin2.h b/thirdparty/freetype/src/autofit/aflatin2.h
index 0129dc707e..507cef3df2 100644
--- a/thirdparty/freetype/src/autofit/aflatin2.h
+++ b/thirdparty/freetype/src/autofit/aflatin2.h
@@ -3,23 +3,23 @@
 /*            marked as experimental.                                    */
 
 
-/***************************************************************************/
-/*                                                                         */
-/*  aflatin2.h                                                             */
-/*                                                                         */
-/*    Auto-fitter hinting routines for latin writing system                */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * aflatin2.h
+ *
+ *   Auto-fitter hinting routines for latin writing system
+ *   (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFLATIN2_H_
diff --git a/thirdparty/freetype/src/autofit/afloader.c b/thirdparty/freetype/src/autofit/afloader.c
index a55550b338..83743b7be1 100644
--- a/thirdparty/freetype/src/autofit/afloader.c
+++ b/thirdparty/freetype/src/autofit/afloader.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afloader.c                                                             */
-/*                                                                         */
-/*    Auto-fitter glyph loading routines (body).                           */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afloader.c
+ *
+ *   Auto-fitter glyph loading routines (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "afglobal.h"
@@ -21,7 +21,6 @@
 #include "afhints.h"
 #include "aferrors.h"
 #include "afmodule.h"
-#include "afpic.h"
 
 #include FT_INTERNAL_CALC_H
 
@@ -119,12 +118,12 @@
     }
 
     /*
-     *  We depend on the writing system (script analyzers) to supply
-     *  standard widths for the script of the glyph we are looking at.  If
-     *  it can't deliver, stem darkening is disabled.
+     * We depend on the writing system (script analyzers) to supply
+     * standard widths for the script of the glyph we are looking at.  If
+     * it can't deliver, stem darkening is disabled.
      */
     writing_system_class =
-      AF_WRITING_SYSTEM_CLASSES_GET[style_metrics->style_class->writing_system];
+      af_writing_system_classes[style_metrics->style_class->writing_system];
 
     if ( writing_system_class->style_metrics_getstdw )
       writing_system_class->style_metrics_getstdw( style_metrics,
@@ -174,22 +173,22 @@
       globals->darken_y                  = af_fixedToInt( darken_y );
 
       /*
-       *  Scale outlines down on the Y-axis to keep them inside their blue
-       *  zones.  The stronger the emboldening, the stronger the downscaling
-       *  (plus heuristical padding to prevent outlines still falling out
-       *  their zones due to rounding).
+       * Scale outlines down on the Y-axis to keep them inside their blue
+       * zones.  The stronger the emboldening, the stronger the downscaling
+       * (plus heuristical padding to prevent outlines still falling out
+       * their zones due to rounding).
        *
-       *  Reason: `FT_Outline_Embolden' works by shifting the rightmost
-       *  points of stems farther to the right, and topmost points farther
-       *  up.  This positions points on the Y-axis outside their
-       *  pre-computed blue zones and leads to distortion when applying the
-       *  hints in the code further below.  Code outside this emboldening
-       *  block doesn't know we are presenting it with modified outlines the
-       *  analyzer didn't see!
+       * Reason: `FT_Outline_Embolden' works by shifting the rightmost
+       * points of stems farther to the right, and topmost points farther
+       * up.  This positions points on the Y-axis outside their
+       * pre-computed blue zones and leads to distortion when applying the
+       * hints in the code further below.  Code outside this emboldening
+       * block doesn't know we are presenting it with modified outlines the
+       * analyzer didn't see!
        *
-       *  An unfortunate side effect of downscaling is that the emboldening
-       *  effect is slightly decreased.  The loss becomes more pronounced
-       *  versus the CFF driver at smaller sizes, e.g., at 9ppem and below.
+       * An unfortunate side effect of downscaling is that the emboldening
+       * effect is slightly decreased.  The loss becomes more pronounced
+       * versus the CFF driver at smaller sizes, e.g., at 9ppem and below.
        */
       globals->scale_down_factor =
         FT_DivFix( em_size - ( darken_by_font_units_y + af_intToFixed( 8 ) ),
@@ -232,10 +231,6 @@
     AF_StyleClass          style_class;
     AF_WritingSystemClass  writing_system_class;
 
-#ifdef FT_CONFIG_OPTION_PIC
-    AF_FaceGlobals  globals = loader->globals;
-#endif
-
 
     if ( !size )
       return FT_THROW( Invalid_Size_Handle );
@@ -282,13 +277,13 @@
     }
 
     /*
-     *  TODO: This code currently doesn't support fractional advance widths,
-     *  i.e., placing hinted glyphs at anything other than integer
-     *  x-positions.  This is only relevant for the warper code, which
-     *  scales and shifts glyphs to optimize blackness of stems (hinting on
-     *  the x-axis by nature places things on pixel integers, hinting on the
-     *  y-axis only, i.e., LIGHT mode, doesn't touch the x-axis).  The delta
-     *  values of the scaler would need to be adjusted.
+     * TODO: This code currently doesn't support fractional advance widths,
+     * i.e., placing hinted glyphs at anything other than integer
+     * x-positions.  This is only relevant for the warper code, which
+     * scales and shifts glyphs to optimize blackness of stems (hinting on
+     * the x-axis by nature places things on pixel integers, hinting on the
+     * y-axis only, i.e., LIGHT mode, doesn't touch the x-axis).  The delta
+     * values of the scaler would need to be adjusted.
      */
     scaler.face    = face;
     scaler.x_scale = size_internal->autohint_metrics.x_scale;
@@ -312,10 +307,10 @@
 #endif
 
     /*
-     *  Glyphs (really code points) are assigned to scripts.  Script
-     *  analysis is done lazily: For each glyph that passes through here,
-     *  the corresponding script analyzer is called, but returns immediately
-     *  if it has been run already.
+     * Glyphs (really code points) are assigned to scripts.  Script
+     * analysis is done lazily: For each glyph that passes through here,
+     * the corresponding script analyzer is called, but returns immediately
+     * if it has been run already.
      */
     error = af_face_globals_get_metrics( loader->globals, glyph_index,
                                          style_options, &style_metrics );
@@ -324,7 +319,7 @@
 
     style_class          = style_metrics->style_class;
     writing_system_class =
-      AF_WRITING_SYSTEM_CLASSES_GET[style_class->writing_system];
+      af_writing_system_classes[style_class->writing_system];
 
     loader->metrics = style_metrics;
 
@@ -342,11 +337,11 @@
     }
 
     /*
-     *  Do the main work of `af_loader_load_glyph'.  Note that we never have
-     *  to deal with composite glyphs as those get loaded into
-     *  FT_GLYPH_FORMAT_OUTLINE by the recursed `FT_Load_Glyph' function.
-     *  In the rare cases where FT_LOAD_NO_RECURSE is set, it implies
-     *  FT_LOAD_NO_SCALE and as such the auto-hinter is never called.
+     * Do the main work of `af_loader_load_glyph'.  Note that we never have
+     * to deal with composite glyphs as those get loaded into
+     * FT_GLYPH_FORMAT_OUTLINE by the recursed `FT_Load_Glyph' function.
+     * In the rare cases where FT_LOAD_NO_RECURSE is set, it implies
+     * FT_LOAD_NO_SCALE and as such the auto-hinter is never called.
      */
     load_flags |=  FT_LOAD_NO_SCALE         |
                    FT_LOAD_IGNORE_TRANSFORM |
@@ -358,26 +353,26 @@
       goto Exit;
 
     /*
-     *  Apply stem darkening (emboldening) here before hints are applied to
-     *  the outline.  Glyphs are scaled down proportionally to the
-     *  emboldening so that curve points don't fall outside their
-     *  precomputed blue zones.
+     * Apply stem darkening (emboldening) here before hints are applied to
+     * the outline.  Glyphs are scaled down proportionally to the
+     * emboldening so that curve points don't fall outside their
+     * precomputed blue zones.
      *
-     *  Any emboldening done by the font driver (e.g., the CFF driver)
-     *  doesn't reach here because the autohinter loads the unprocessed
-     *  glyphs in font units for analysis (functions `af_*_metrics_init_*')
-     *  and then above to prepare it for the rasterizers by itself,
-     *  independently of the font driver.  So emboldening must be done here,
-     *  within the autohinter.
+     * Any emboldening done by the font driver (e.g., the CFF driver)
+     * doesn't reach here because the autohinter loads the unprocessed
+     * glyphs in font units for analysis (functions `af_*_metrics_init_*')
+     * and then above to prepare it for the rasterizers by itself,
+     * independently of the font driver.  So emboldening must be done here,
+     * within the autohinter.
      *
-     *  All glyphs to be autohinted pass through here one by one.  The
-     *  standard widths can therefore change from one glyph to the next,
-     *  depending on what script a glyph is assigned to (each script has its
-     *  own set of standard widths and other metrics).  The darkening amount
-     *  must therefore be recomputed for each size and
-     *  `standard_{vertical,horizontal}_width' change.
+     * All glyphs to be autohinted pass through here one by one.  The
+     * standard widths can therefore change from one glyph to the next,
+     * depending on what script a glyph is assigned to (each script has its
+     * own set of standard widths and other metrics).  The darkening amount
+     * must therefore be recomputed for each size and
+     * `standard_{vertical,horizontal}_width' change.
      *
-     *  Ignore errors and carry on without emboldening.
+     * Ignore errors and carry on without emboldening.
      *
      */
 
@@ -426,35 +421,39 @@
       /* now load the slot image into the auto-outline */
       /* and run the automatic hinting process         */
       if ( writing_system_class->style_hints_apply )
-        writing_system_class->style_hints_apply( glyph_index,
-                                                 hints,
-                                                 &gloader->base.outline,
-                                                 style_metrics );
+      {
+        error = writing_system_class->style_hints_apply(
+                  glyph_index,
+                  hints,
+                  &gloader->base.outline,
+                  style_metrics );
+        if ( error )
+          goto Exit;
+      }
 
       /* we now need to adjust the metrics according to the change in */
       /* width/positioning that occurred during the hinting process   */
       if ( scaler.render_mode != FT_RENDER_MODE_LIGHT )
       {
-        FT_Pos  old_rsb, old_lsb, new_lsb;
-        FT_Pos  pp1x_uh, pp2x_uh;
-
         AF_AxisHints  axis  = &hints->axis[AF_DIMENSION_HORZ];
-        AF_Edge       edge1 = axis->edges;         /* leftmost edge  */
-        AF_Edge       edge2 = edge1 +
-                              axis->num_edges - 1; /* rightmost edge */
 
 
         if ( axis->num_edges > 1 && AF_HINTS_DO_ADVANCE( hints ) )
         {
-          old_rsb = loader->pp2.x - edge2->opos;
+          AF_Edge  edge1 = axis->edges;         /* leftmost edge  */
+          AF_Edge  edge2 = edge1 +
+                           axis->num_edges - 1; /* rightmost edge */
+
+          FT_Pos  old_rsb = loader->pp2.x - edge2->opos;
           /* loader->pp1.x is always zero at this point of time */
-          old_lsb = edge1->opos /* - loader->pp1.x */;
-          new_lsb = edge1->pos;
+          FT_Pos  old_lsb = edge1->opos;     /* - loader->pp1.x */
+          FT_Pos  new_lsb = edge1->pos;
 
           /* remember unhinted values to later account */
           /* for rounding errors                       */
-          pp1x_uh = new_lsb    - old_lsb;
-          pp2x_uh = edge2->pos + old_rsb;
+          FT_Pos  pp1x_uh = new_lsb    - old_lsb;
+          FT_Pos  pp2x_uh = edge2->pos + old_rsb;
+
 
           /* prefer too much space over too little space */
           /* for very small sizes                        */
diff --git a/thirdparty/freetype/src/autofit/afloader.h b/thirdparty/freetype/src/autofit/afloader.h
index d4d72d1583..d1e0f3c093 100644
--- a/thirdparty/freetype/src/autofit/afloader.h
+++ b/thirdparty/freetype/src/autofit/afloader.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afloader.h                                                             */
-/*                                                                         */
-/*    Auto-fitter glyph loading routines (specification).                  */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afloader.h
+ *
+ *   Auto-fitter glyph loading routines (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFLOADER_H_
@@ -27,11 +27,11 @@
 FT_BEGIN_HEADER
 
   /*
-   *  The autofitter module's (global) data structure to communicate with
-   *  actual fonts.  If necessary, `local' data like the current face, the
-   *  current face's auto-hint data, or the current glyph's parameters
-   *  relevant to auto-hinting are `swapped in'.  Cf. functions like
-   *  `af_loader_reset' and `af_loader_load_g'.
+   * The autofitter module's (global) data structure to communicate with
+   * actual fonts.  If necessary, `local' data like the current face, the
+   * current face's auto-hint data, or the current glyph's parameters
+   * relevant to auto-hinting are `swapped in'.  Cf. functions like
+   * `af_loader_reset' and `af_loader_load_g'.
    */
 
   typedef struct  AF_LoaderRec_
diff --git a/thirdparty/freetype/src/autofit/afmodule.c b/thirdparty/freetype/src/autofit/afmodule.c
index dcaa17a27e..3e46a3655a 100644
--- a/thirdparty/freetype/src/autofit/afmodule.c
+++ b/thirdparty/freetype/src/autofit/afmodule.c
@@ -1,26 +1,25 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afmodule.c                                                             */
-/*                                                                         */
-/*    Auto-fitter module implementation (body).                            */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afmodule.c
+ *
+ *   Auto-fitter module implementation (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "afglobal.h"
 #include "afmodule.h"
 #include "afloader.h"
 #include "aferrors.h"
-#include "afpic.h"
 
 #ifdef FT_DEBUG_AUTOFIT
 
@@ -60,14 +59,14 @@
 #include FT_SERVICE_PROPERTIES_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_afmodule
+#define FT_COMPONENT  afmodule
 
 
   static FT_Error
@@ -104,19 +103,6 @@
   }
 
 
-#ifdef FT_CONFIG_OPTION_PIC
-
-#undef  AF_SCRIPT_CLASSES_GET
-#define AF_SCRIPT_CLASSES_GET  \
-          ( GET_PIC( ft_module->library )->af_script_classes )
-
-#undef  AF_STYLE_CLASSES_GET
-#define AF_STYLE_CLASSES_GET  \
-          ( GET_PIC( ft_module->library )->af_style_classes )
-
-#endif
-
-
   static FT_Error
   af_property_set( FT_Module    ft_module,
                    const char*  property_name,
@@ -147,9 +133,9 @@
       /* We translate the fallback script to a fallback style that uses */
       /* `fallback-script' as its script and `AF_COVERAGE_NONE' as its  */
       /* coverage value.                                                */
-      for ( ss = 0; AF_STYLE_CLASSES_GET[ss]; ss++ )
+      for ( ss = 0; af_style_classes[ss]; ss++ )
       {
-        AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[ss];
+        AF_StyleClass  style_class = af_style_classes[ss];
 
 
         if ( (FT_UInt)style_class->script == *fallback_script &&
@@ -160,7 +146,7 @@
         }
       }
 
-      if ( !AF_STYLE_CLASSES_GET[ss] )
+      if ( !af_style_classes[ss] )
       {
         FT_TRACE0(( "af_property_set: Invalid value %d for property `%s'\n",
                     fallback_script, property_name ));
@@ -357,7 +343,7 @@
     {
       FT_UInt*  val = (FT_UInt*)value;
 
-      AF_StyleClass  style_class = AF_STYLE_CLASSES_GET[fallback_style];
+      AF_StyleClass  style_class = af_style_classes[fallback_style];
 
 
       *val = style_class->script;
@@ -440,28 +426,16 @@
   FT_DEFINE_SERVICEDESCREC1(
     af_services,
 
-    FT_SERVICE_ID_PROPERTIES, &AF_SERVICE_PROPERTIES_GET )
+    FT_SERVICE_ID_PROPERTIES, &af_service_properties )
 
 
   FT_CALLBACK_DEF( FT_Module_Interface )
   af_get_interface( FT_Module    module,
                     const char*  module_interface )
   {
-    /* AF_SERVICES_GET dereferences `library' in PIC mode */
-#ifdef FT_CONFIG_OPTION_PIC
-    FT_Library  library;
-
-
-    if ( !module )
-      return NULL;
-    library = module->library;
-    if ( !library )
-      return NULL;
-#else
     FT_UNUSED( module );
-#endif
 
-    return ft_service_list_lookup( AF_SERVICES_GET, module_interface );
+    return ft_service_list_lookup( af_services, module_interface );
   }
 
 
@@ -533,7 +507,7 @@
                                   glyph_index, load_flags );
 
 #ifdef FT_DEBUG_LEVEL_TRACE
-    if ( ft_trace_levels[FT_COMPONENT] )
+    if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] )
     {
 #endif
       af_glyph_hints_dump_points( hints, 0 );
@@ -589,7 +563,7 @@
     0x10000L,   /* version 1.0 of the autofitter  */
     0x20000L,   /* requires FreeType 2.0 or above */
 
-    (const void*)&AF_INTERFACE_GET,
+    (const void*)&af_autofitter_interface,
 
     (FT_Module_Constructor)af_autofitter_init,  /* module_init   */
     (FT_Module_Destructor) af_autofitter_done,  /* module_done   */
diff --git a/thirdparty/freetype/src/autofit/afmodule.h b/thirdparty/freetype/src/autofit/afmodule.h
index 56f64eaf23..b410809aa8 100644
--- a/thirdparty/freetype/src/autofit/afmodule.h
+++ b/thirdparty/freetype/src/autofit/afmodule.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afmodule.h                                                             */
-/*                                                                         */
-/*    Auto-fitter module implementation (specification).                   */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afmodule.h
+ *
+ *   Auto-fitter module implementation (specification).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFMODULE_H_
@@ -28,8 +28,8 @@ FT_BEGIN_HEADER
 
 
   /*
-   *  This is the `extended' FT_Module structure that holds the
-   *  autofitter's global data.
+   * This is the `extended' FT_Module structure that holds the
+   * autofitter's global data.
    */
 
   typedef struct  AF_ModuleRec_
diff --git a/thirdparty/freetype/src/autofit/afpic.c b/thirdparty/freetype/src/autofit/afpic.c
deleted file mode 100644
index d48d016a0e..0000000000
--- a/thirdparty/freetype/src/autofit/afpic.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afpic.c                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services for autofit module.  */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "afpic.h"
-#include "afglobal.h"
-#include "aferrors.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from afmodule.c */
-  FT_Error
-  FT_Create_Class_af_services( FT_Library           library,
-                               FT_ServiceDescRec**  output_class );
-
-  void
-  FT_Destroy_Class_af_services( FT_Library          library,
-                                FT_ServiceDescRec*  clazz );
-
-  void
-  FT_Init_Class_af_service_properties( FT_Service_PropertiesRec*  clazz );
-
-  void FT_Init_Class_af_autofitter_interface(
-    FT_Library                   library,
-    FT_AutoHinter_InterfaceRec*  clazz );
-
-
-  /* forward declaration of PIC init functions from writing system classes */
-#undef  WRITING_SYSTEM
-#define WRITING_SYSTEM( ws, WS )  /* empty */
-
-#include "afwrtsys.h"
-
-
-  void
-  autofit_module_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->autofit )
-    {
-      AFModulePIC*  container = (AFModulePIC*)pic_container->autofit;
-
-
-      if ( container->af_services )
-        FT_Destroy_Class_af_services( library,
-                                      container->af_services );
-      container->af_services = NULL;
-
-      FT_FREE( container );
-      pic_container->autofit = NULL;
-    }
-  }
-
-
-  FT_Error
-  autofit_module_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_UInt            ss;
-    FT_Error           error         = FT_Err_Ok;
-    AFModulePIC*       container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC ( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->autofit = container;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    error = FT_Create_Class_af_services( library,
-                                         &container->af_services );
-    if ( error )
-      goto Exit;
-
-    FT_Init_Class_af_service_properties( &container->af_service_properties );
-
-    for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX; ss++ )
-      container->af_writing_system_classes[ss] =
-        &container->af_writing_system_classes_rec[ss];
-    container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL;
-
-    for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ )
-      container->af_script_classes[ss] =
-        &container->af_script_classes_rec[ss];
-    container->af_script_classes[AF_SCRIPT_MAX] = NULL;
-
-    for ( ss = 0; ss < AF_STYLE_MAX; ss++ )
-      container->af_style_classes[ss] =
-        &container->af_style_classes_rec[ss];
-    container->af_style_classes[AF_STYLE_MAX] = NULL;
-
-#undef  WRITING_SYSTEM
-#define WRITING_SYSTEM( ws, WS )                             \
-        FT_Init_Class_af_ ## ws ## _writing_system_class(    \
-          &container->af_writing_system_classes_rec[ss++] );
-
-    ss = 0;
-#include "afwrtsys.h"
-
-#undef  SCRIPT
-#define SCRIPT( s, S, d, h, H, sss )                 \
-        FT_Init_Class_af_ ## s ## _script_class(     \
-          &container->af_script_classes_rec[ss++] );
-
-    ss = 0;
-#include "afscript.h"
-
-#undef  STYLE
-#define STYLE( s, S, d, ws, sc, bss, c )            \
-        FT_Init_Class_af_ ## s ## _style_class(     \
-          &container->af_style_classes_rec[ss++] );
-
-    ss = 0;
-#include "afstyles.h"
-
-    FT_Init_Class_af_autofitter_interface(
-      library, &container->af_autofitter_interface );
-
-  Exit:
-    if ( error )
-      autofit_module_class_pic_free( library );
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afpic.h b/thirdparty/freetype/src/autofit/afpic.h
deleted file mode 100644
index 0c73456785..0000000000
--- a/thirdparty/freetype/src/autofit/afpic.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afpic.h                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services for autofit module.  */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef AFPIC_H_
-#define AFPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define AF_SERVICES_GET                af_services
-#define AF_SERVICE_PROPERTIES_GET      af_service_properties
-
-#define AF_WRITING_SYSTEM_CLASSES_GET  af_writing_system_classes
-#define AF_SCRIPT_CLASSES_GET          af_script_classes
-#define AF_STYLE_CLASSES_GET           af_style_classes
-#define AF_INTERFACE_GET               af_autofitter_interface
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-  /* some include files required for members of AFModulePIC */
-#include FT_SERVICE_PROPERTIES_H
-
-#include "aftypes.h"
-
-
-FT_BEGIN_HEADER
-
-  typedef struct  AFModulePIC_
-  {
-    FT_ServiceDescRec*          af_services;
-    FT_Service_PropertiesRec    af_service_properties;
-
-    AF_WritingSystemClass       af_writing_system_classes
-                                  [AF_WRITING_SYSTEM_MAX + 1];
-    AF_WritingSystemClassRec    af_writing_system_classes_rec
-                                  [AF_WRITING_SYSTEM_MAX];
-
-    AF_ScriptClass              af_script_classes
-                                  [AF_SCRIPT_MAX + 1];
-    AF_ScriptClassRec           af_script_classes_rec
-                                  [AF_SCRIPT_MAX];
-
-    AF_StyleClass               af_style_classes
-                                  [AF_STYLE_MAX + 1];
-    AF_StyleClassRec            af_style_classes_rec
-                                  [AF_STYLE_MAX];
-
-    FT_AutoHinter_InterfaceRec  af_autofitter_interface;
-
-  } AFModulePIC;
-
-
-#define GET_PIC( lib )  \
-          ( (AFModulePIC*)( (lib)->pic_container.autofit ) )
-
-#define AF_SERVICES_GET  \
-          ( GET_PIC( library )->af_services )
-#define AF_SERVICE_PROPERTIES_GET  \
-          ( GET_PIC( library )->af_service_properties )
-
-#define AF_WRITING_SYSTEM_CLASSES_GET  \
-          ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_writing_system_classes )
-#define AF_SCRIPT_CLASSES_GET  \
-          ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_script_classes )
-#define AF_STYLE_CLASSES_GET  \
-          ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_style_classes )
-#define AF_INTERFACE_GET  \
-          ( GET_PIC( library )->af_autofitter_interface )
-
-
-  /* see afpic.c for the implementation */
-  void
-  autofit_module_class_pic_free( FT_Library  library );
-
-  FT_Error
-  autofit_module_class_pic_init( FT_Library  library );
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-#endif /* AFPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afranges.c b/thirdparty/freetype/src/autofit/afranges.c
index cf67fafb11..c0dba818a1 100644
--- a/thirdparty/freetype/src/autofit/afranges.c
+++ b/thirdparty/freetype/src/autofit/afranges.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afranges.c                                                             */
-/*                                                                         */
-/*    Auto-fitter Unicode script ranges (body).                            */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afranges.c
+ *
+ *   Auto-fitter Unicode script ranges (body).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "afranges.h"
diff --git a/thirdparty/freetype/src/autofit/afranges.h b/thirdparty/freetype/src/autofit/afranges.h
index ba3b5e7ccb..d5917aefed 100644
--- a/thirdparty/freetype/src/autofit/afranges.h
+++ b/thirdparty/freetype/src/autofit/afranges.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afranges.h                                                             */
-/*                                                                         */
-/*    Auto-fitter Unicode script ranges (specification).                   */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afranges.h
+ *
+ *   Auto-fitter Unicode script ranges (specification).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFRANGES_H_
diff --git a/thirdparty/freetype/src/autofit/afscript.h b/thirdparty/freetype/src/autofit/afscript.h
index 623a1734a6..c2f0c7ac60 100644
--- a/thirdparty/freetype/src/autofit/afscript.h
+++ b/thirdparty/freetype/src/autofit/afscript.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afscript.h                                                             */
-/*                                                                         */
-/*    Auto-fitter scripts (specification only).                            */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afscript.h
+ *
+ *   Auto-fitter scripts (specification only).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /* The following part can be included multiple times. */
diff --git a/thirdparty/freetype/src/autofit/afshaper.c b/thirdparty/freetype/src/autofit/afshaper.c
index f30828173c..a5191c6915 100644
--- a/thirdparty/freetype/src/autofit/afshaper.c
+++ b/thirdparty/freetype/src/autofit/afshaper.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afshaper.c                                                             */
-/*                                                                         */
-/*    HarfBuzz interface for accessing OpenType features (body).           */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afshaper.c
+ *
+ *   HarfBuzz interface for accessing OpenType features (body).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,14 +26,14 @@
 #ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_afshaper
+#define FT_COMPONENT  afshaper
 
 
   /*
@@ -591,14 +591,9 @@
   void*
   af_shaper_buf_create( FT_Face  face )
   {
-    FT_Error   error;
-    FT_Memory  memory = face->memory;
-    FT_ULong*  buf;
-
-
-    FT_MEM_ALLOC( buf, sizeof ( FT_ULong ) );
+    FT_UNUSED( face );
 
-    return (void*)buf;
+    return NULL;
   }
 
 
@@ -606,10 +601,8 @@
   af_shaper_buf_destroy( FT_Face  face,
                          void*    buf )
   {
-    FT_Memory  memory = face->memory;
-
-
-    FT_FREE( buf );
+    FT_UNUSED( face );
+    FT_UNUSED( buf );
   }
 
 
diff --git a/thirdparty/freetype/src/autofit/afshaper.h b/thirdparty/freetype/src/autofit/afshaper.h
index 7efd9f6a4e..06a1e06616 100644
--- a/thirdparty/freetype/src/autofit/afshaper.h
+++ b/thirdparty/freetype/src/autofit/afshaper.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afshaper.h                                                             */
-/*                                                                         */
-/*    HarfBuzz interface for accessing OpenType features (specification).  */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afshaper.h
+ *
+ *   HarfBuzz interface for accessing OpenType features (specification).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFSHAPER_H_
diff --git a/thirdparty/freetype/src/autofit/afstyles.h b/thirdparty/freetype/src/autofit/afstyles.h
index e2688b3fc2..edf4f54edd 100644
--- a/thirdparty/freetype/src/autofit/afstyles.h
+++ b/thirdparty/freetype/src/autofit/afstyles.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afstyles.h                                                             */
-/*                                                                         */
-/*    Auto-fitter styles (specification only).                             */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afstyles.h
+ *
+ *   Auto-fitter styles (specification only).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /* The following part can be included multiple times. */
diff --git a/thirdparty/freetype/src/autofit/aftypes.h b/thirdparty/freetype/src/autofit/aftypes.h
index 6bd8c895b2..579003d27d 100644
--- a/thirdparty/freetype/src/autofit/aftypes.h
+++ b/thirdparty/freetype/src/autofit/aftypes.h
@@ -1,30 +1,30 @@
-/***************************************************************************/
-/*                                                                         */
-/*  aftypes.h                                                              */
-/*                                                                         */
-/*    Auto-fitter types (specification only).                              */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * aftypes.h
+ *
+ *   Auto-fitter types (specification only).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /*************************************************************************
    *
-   *  The auto-fitter is a complete rewrite of the old auto-hinter.
-   *  Its main feature is the ability to differentiate between different
-   *  writing systems and scripts in order to apply specific rules.
+   * The auto-fitter is a complete rewrite of the old auto-hinter.
+   * Its main feature is the ability to differentiate between different
+   * writing systems and scripts in order to apply specific rules.
    *
-   *  The code has also been compartmentalized into several entities that
-   *  should make algorithmic experimentation easier than with the old
-   *  code.
+   * The code has also been compartmentalized into several entities that
+   * should make algorithmic experimentation easier than with the old
+   * code.
    *
    *************************************************************************/
 
@@ -102,9 +102,9 @@ extern void*  _af_debug_hints;
   /*************************************************************************/
 
   /*
-   *  The auto-fitter doesn't need a very high angular accuracy;
-   *  this allows us to speed up some computations considerably with a
-   *  light Cordic algorithm (see afangles.c).
+   * The auto-fitter doesn't need a very high angular accuracy;
+   * this allows us to speed up some computations considerably with a
+   * light Cordic algorithm (see afangles.c).
    */
 
   typedef FT_Int  AF_Angle;
@@ -118,7 +118,7 @@ extern void*  _af_debug_hints;
 
 #if 0
   /*
-   *  compute the angle of a given 2-D vector
+   * compute the angle of a given 2-D vector
    */
   FT_LOCAL( AF_Angle )
   af_angle_atan( FT_Pos  dx,
@@ -126,8 +126,8 @@ extern void*  _af_debug_hints;
 
 
   /*
-   *  compute `angle2 - angle1'; the result is always within
-   *  the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]
+   * compute `angle2 - angle1'; the result is always within
+   * the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]
    */
   FT_LOCAL( AF_Angle )
   af_angle_diff( AF_Angle  angle1,
@@ -150,8 +150,9 @@ extern void*  _af_debug_hints;
   FT_END_STMNT
 
 
-  /*  opaque handle to glyph-specific hints -- see `afhints.h' for more
-   *  details
+  /*
+   * opaque handle to glyph-specific hints -- see `afhints.h' for more
+   * details
    */
   typedef struct AF_GlyphHintsRec_*  AF_GlyphHints;
 
@@ -165,8 +166,8 @@ extern void*  _af_debug_hints;
   /*************************************************************************/
 
   /*
-   *  A scaler models the target pixel device that will receive the
-   *  auto-hinted glyph image.
+   * A scaler models the target pixel device that will receive the
+   * auto-hinted glyph image.
    */
 
 #define AF_SCALER_FLAG_NO_HORIZONTAL  1U /* disable horizontal hinting */
@@ -197,8 +198,9 @@ extern void*  _af_debug_hints;
 
   typedef struct AF_StyleMetricsRec_*  AF_StyleMetrics;
 
-  /*  This function parses an FT_Face to compute global metrics for
-   *  a specific style.
+  /*
+   * This function parses an FT_Face to compute global metrics for
+   * a specific style.
    */
   typedef FT_Error
   (*AF_WritingSystem_InitMetricsFunc)( AF_StyleMetrics  metrics,
@@ -237,22 +239,22 @@ extern void*  _af_debug_hints;
   /*************************************************************************/
 
   /*
-   *  For the auto-hinter, a writing system consists of multiple scripts that
-   *  can be handled similarly *in a typographical way*; the relationship is
-   *  not based on history.  For example, both the Greek and the unrelated
-   *  Armenian scripts share the same features like ascender, descender,
-   *  x-height, etc.  Essentially, a writing system is covered by a
-   *  submodule of the auto-fitter; it contains
+   * For the auto-hinter, a writing system consists of multiple scripts that
+   * can be handled similarly *in a typographical way*; the relationship is
+   * not based on history.  For example, both the Greek and the unrelated
+   * Armenian scripts share the same features like ascender, descender,
+   * x-height, etc.  Essentially, a writing system is covered by a
+   * submodule of the auto-fitter; it contains
    *
-   *  - a specific global analyzer that computes global metrics specific to
-   *    the script (based on script-specific characters to identify ascender
-   *    height, x-height, etc.),
+   * - a specific global analyzer that computes global metrics specific to
+   *   the script (based on script-specific characters to identify ascender
+   *   height, x-height, etc.),
    *
-   *  - a specific glyph analyzer that computes segments and edges for each
-   *    glyph covered by the script,
+   * - a specific glyph analyzer that computes segments and edges for each
+   *   glyph covered by the script,
    *
-   *  - a specific grid-fitting algorithm that distorts the scaled glyph
-   *    outline according to the results of the glyph analyzer.
+   * - a specific grid-fitting algorithm that distorts the scaled glyph
+   *   outline according to the results of the glyph analyzer.
    */
 
 #define AFWRTSYS_H_  /* don't load header files */
@@ -300,12 +302,12 @@ extern void*  _af_debug_hints;
   /*************************************************************************/
 
   /*
-   *  Each script is associated with two sets of Unicode ranges to test
-   *  whether the font face supports the script, and which non-base
-   *  characters the script contains.
+   * Each script is associated with two sets of Unicode ranges to test
+   * whether the font face supports the script, and which non-base
+   * characters the script contains.
    *
-   *  We use four-letter script tags from the OpenType specification,
-   *  extended by `NONE', which indicates `no script'.
+   * We use four-letter script tags from the OpenType specification,
+   * extended by `NONE', which indicates `no script'.
    */
 
 #undef  SCRIPT
@@ -361,41 +363,41 @@ extern void*  _af_debug_hints;
   /*************************************************************************/
 
   /*
-   *  Usually, a font contains more glyphs than can be addressed by its
-   *  character map.
+   * Usually, a font contains more glyphs than can be addressed by its
+   * character map.
    *
-   *  In the PostScript font world, encoding vectors specific to a given
-   *  task are used to select such glyphs, and these glyphs can be often
-   *  recognized by having a suffix in its glyph names.  For example, a
-   *  superscript glyph `A' might be called `A.sup'.  Unfortunately, this
-   *  naming scheme is not standardized and thus unusable for us.
+   * In the PostScript font world, encoding vectors specific to a given
+   * task are used to select such glyphs, and these glyphs can be often
+   * recognized by having a suffix in its glyph names.  For example, a
+   * superscript glyph `A' might be called `A.sup'.  Unfortunately, this
+   * naming scheme is not standardized and thus unusable for us.
    *
-   *  In the OpenType world, a better solution was invented, namely
-   *  `features', which cleanly separate a character's input encoding from
-   *  the corresponding glyph's appearance, and which don't use glyph names
-   *  at all.  For our purposes, and slightly generalized, an OpenType
-   *  feature is a name of a mapping that maps character codes to
-   *  non-standard glyph indices (features get used for other things also).
-   *  For example, the `sups' feature provides superscript glyphs, thus
-   *  mapping character codes like `A' or `B' to superscript glyph
-   *  representation forms.  How this mapping happens is completely
-   *  uninteresting to us.
+   * In the OpenType world, a better solution was invented, namely
+   * `features', which cleanly separate a character's input encoding from
+   * the corresponding glyph's appearance, and which don't use glyph names
+   * at all.  For our purposes, and slightly generalized, an OpenType
+   * feature is a name of a mapping that maps character codes to
+   * non-standard glyph indices (features get used for other things also).
+   * For example, the `sups' feature provides superscript glyphs, thus
+   * mapping character codes like `A' or `B' to superscript glyph
+   * representation forms.  How this mapping happens is completely
+   * uninteresting to us.
    *
-   *  For the auto-hinter, a `coverage' represents all glyphs of an OpenType
-   *  feature collected in a set (as listed below) that can be hinted
-   *  together.  To continue the above example, superscript glyphs must not
-   *  be hinted together with normal glyphs because the blue zones
-   *  completely differ.
+   * For the auto-hinter, a `coverage' represents all glyphs of an OpenType
+   * feature collected in a set (as listed below) that can be hinted
+   * together.  To continue the above example, superscript glyphs must not
+   * be hinted together with normal glyphs because the blue zones
+   * completely differ.
    *
-   *  Note that FreeType itself doesn't compute coverages; it only provides
-   *  the glyphs addressable by the default Unicode character map.  Instead,
-   *  we use the HarfBuzz library (if available), which has many functions
-   *  exactly for this purpose.
+   * Note that FreeType itself doesn't compute coverages; it only provides
+   * the glyphs addressable by the default Unicode character map.  Instead,
+   * we use the HarfBuzz library (if available), which has many functions
+   * exactly for this purpose.
    *
-   *  AF_COVERAGE_DEFAULT is special: It should cover everything that isn't
-   *  listed separately (including the glyphs addressable by the character
-   *  map).  In case HarfBuzz isn't available, it exactly covers the glyphs
-   *  addressable by the character map.
+   * AF_COVERAGE_DEFAULT is special: It should cover everything that isn't
+   * listed separately (including the glyphs addressable by the character
+   * map).  In case HarfBuzz isn't available, it exactly covers the glyphs
+   * addressable by the character map.
    *
    */
 
@@ -423,8 +425,8 @@ extern void*  _af_debug_hints;
   /*************************************************************************/
 
   /*
-   *  The topmost structure for modelling the auto-hinter glyph input data
-   *  is a `style class', grouping everything together.
+   * The topmost structure for modelling the auto-hinter glyph input data
+   * is a `style class', grouping everything together.
    */
 
 #undef  STYLE
@@ -486,8 +488,6 @@ extern void*  _af_debug_hints;
 
 
   /* Declare and define vtables for classes */
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class ) \
   FT_CALLBACK_TABLE const AF_WritingSystemClassRec              \
   writing_system_class;
@@ -562,87 +562,9 @@ extern void*  _af_debug_hints;
     coverage                            \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class )            \
-  FT_LOCAL( void )                                                         \
-  FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec*  ac );
-
-#define AF_DEFINE_WRITING_SYSTEM_CLASS(                                   \
-          writing_system_class,                                           \
-          system,                                                         \
-          m_size,                                                         \
-          m_init,                                                         \
-          m_scale,                                                        \
-          m_done,                                                         \
-          m_stdw,                                                         \
-          h_init,                                                         \
-          h_apply )                                                       \
-  FT_LOCAL_DEF( void )                                                    \
-  FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec*  ac ) \
-  {                                                                       \
-    ac->writing_system        = system;                                   \
-                                                                          \
-    ac->style_metrics_size    = m_size;                                   \
-                                                                          \
-    ac->style_metrics_init    = m_init;                                   \
-    ac->style_metrics_scale   = m_scale;                                  \
-    ac->style_metrics_done    = m_done;                                   \
-    ac->style_metrics_getstdw = m_stdw;                                   \
-                                                                          \
-    ac->style_hints_init      = h_init;                                   \
-    ac->style_hints_apply     = h_apply;                                  \
-  }
-
-
-#define AF_DECLARE_SCRIPT_CLASS( script_class )             \
-  FT_LOCAL( void )                                          \
-  FT_Init_Class_ ## script_class( AF_ScriptClassRec*  ac );
-
-#define AF_DEFINE_SCRIPT_CLASS(                            \
-          script_class,                                    \
-          script_,                                         \
-          ranges,                                          \
-          nonbase_ranges,                                  \
-          top_to_bottom,                                   \
-          std_charstring )                                 \
-  FT_LOCAL_DEF( void )                                     \
-  FT_Init_Class_ ## script_class( AF_ScriptClassRec*  ac ) \
-  {                                                        \
-    ac->script                    = script_;               \
-    ac->script_uni_ranges         = ranges;                \
-    ac->script_uni_nonbase_ranges = nonbase_ranges;        \
-    ac->top_to_bottom_hinting     = top_to_bottom;         \
-    ac->standard_charstring       = std_charstring;        \
-  }
-
-
-#define AF_DECLARE_STYLE_CLASS( style_class )             \
-  FT_LOCAL( void )                                        \
-  FT_Init_Class_ ## style_class( AF_StyleClassRec*  ac );
-
-#define AF_DEFINE_STYLE_CLASS(                           \
-          style_class,                                   \
-          style_,                                        \
-          writing_system_,                               \
-          script_,                                       \
-          blue_stringset_,                               \
-          coverage_ )                                    \
-  FT_LOCAL_DEF( void )                                   \
-  FT_Init_Class_ ## style_class( AF_StyleClassRec*  ac ) \
-  {                                                      \
-    ac->style          = style_;                         \
-    ac->writing_system = writing_system_;                \
-    ac->script         = script_;                        \
-    ac->blue_stringset = blue_stringset_;                \
-    ac->coverage       = coverage_;                      \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
 /* */
 
+
 FT_END_HEADER
 
 #endif /* AFTYPES_H_ */
diff --git a/thirdparty/freetype/src/autofit/afwarp.c b/thirdparty/freetype/src/autofit/afwarp.c
index 2a75ea7b35..84e9753ad9 100644
--- a/thirdparty/freetype/src/autofit/afwarp.c
+++ b/thirdparty/freetype/src/autofit/afwarp.c
@@ -1,40 +1,40 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afwarp.c                                                               */
-/*                                                                         */
-/*    Auto-fitter warping algorithm (body).                                */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afwarp.c
+ *
+ *   Auto-fitter warping algorithm (body).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /*
-   *  The idea of the warping code is to slightly scale and shift a glyph
-   *  within a single dimension so that as much of its segments are aligned
-   *  (more or less) on the grid.  To find out the optimal scaling and
-   *  shifting value, various parameter combinations are tried and scored.
+   * The idea of the warping code is to slightly scale and shift a glyph
+   * within a single dimension so that as much of its segments are aligned
+   * (more or less) on the grid.  To find out the optimal scaling and
+   * shifting value, various parameter combinations are tried and scored.
    */
 
 #include "afwarp.h"
 
 #ifdef AF_CONFIG_OPTION_USE_WARPER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_afwarp
+#define FT_COMPONENT  afwarp
 
 
   /* The weights cover the range 0/64 - 63/64 of a pixel.  Obviously, */
diff --git a/thirdparty/freetype/src/autofit/afwarp.h b/thirdparty/freetype/src/autofit/afwarp.h
index 520b1be907..9a2c9a42c1 100644
--- a/thirdparty/freetype/src/autofit/afwarp.h
+++ b/thirdparty/freetype/src/autofit/afwarp.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afwarp.h                                                               */
-/*                                                                         */
-/*    Auto-fitter warping algorithm (specification).                       */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afwarp.h
+ *
+ *   Auto-fitter warping algorithm (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFWARP_H_
@@ -47,12 +47,14 @@ FT_BEGIN_HEADER
   } AF_WarperRec, *AF_Warper;
 
 
+#ifdef AF_CONFIG_OPTION_USE_WARPER
   FT_LOCAL( void )
   af_warper_compute( AF_Warper      warper,
                      AF_GlyphHints  hints,
                      AF_Dimension   dim,
                      FT_Fixed      *a_scale,
-                     FT_Fixed      *a_delta );
+                     FT_Pos        *a_delta );
+#endif
 
 
 FT_END_HEADER
diff --git a/thirdparty/freetype/src/autofit/afwrtsys.h b/thirdparty/freetype/src/autofit/afwrtsys.h
index 4675f3242d..5611cf441a 100644
--- a/thirdparty/freetype/src/autofit/afwrtsys.h
+++ b/thirdparty/freetype/src/autofit/afwrtsys.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afwrtsys.h                                                             */
-/*                                                                         */
-/*    Auto-fitter writing systems (specification only).                    */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afwrtsys.h
+ *
+ *   Auto-fitter writing systems (specification only).
+ *
+ * Copyright (C) 2013-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFWRTSYS_H_
diff --git a/thirdparty/freetype/src/autofit/autofit.c b/thirdparty/freetype/src/autofit/autofit.c
index c1605160a1..facfec1744 100644
--- a/thirdparty/freetype/src/autofit/autofit.c
+++ b/thirdparty/freetype/src/autofit/autofit.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  autofit.c                                                              */
-/*                                                                         */
-/*    Auto-fitter module (body).                                           */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * autofit.c
+ *
+ *   Auto-fitter module (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -30,7 +30,6 @@
 #include "aflatin2.c"
 #include "afloader.c"
 #include "afmodule.c"
-#include "afpic.c"
 #include "afranges.c"
 #include "afshaper.c"
 #include "afwarp.c"
diff --git a/thirdparty/freetype/src/autofit/module.mk b/thirdparty/freetype/src/autofit/module.mk
index ff05f83e7e..cf77b169f7 100644
--- a/thirdparty/freetype/src/autofit/module.mk
+++ b/thirdparty/freetype/src/autofit/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2003-2018 by
+# Copyright (C) 2003-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/autofit/rules.mk b/thirdparty/freetype/src/autofit/rules.mk
index 75171b412c..c59da33a55 100644
--- a/thirdparty/freetype/src/autofit/rules.mk
+++ b/thirdparty/freetype/src/autofit/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2003-2018 by
+# Copyright (C) 2003-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -38,7 +38,6 @@ AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \
                  $(AUTOF_DIR)/aflatin.c  \
                  $(AUTOF_DIR)/afloader.c \
                  $(AUTOF_DIR)/afmodule.c \
-                 $(AUTOF_DIR)/afpic.c    \
                  $(AUTOF_DIR)/afranges.c \
                  $(AUTOF_DIR)/afshaper.c \
                  $(AUTOF_DIR)/afwarp.c
diff --git a/thirdparty/freetype/src/base/basepic.c b/thirdparty/freetype/src/base/basepic.c
deleted file mode 100644
index bc80406441..0000000000
--- a/thirdparty/freetype/src/base/basepic.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  basepic.c                                                              */
-/*                                                                         */
-/*    The FreeType position independent code services for base.            */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "basepic.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from ftglyph.c */
-  void
-  FT_Init_Class_ft_outline_glyph_class( FT_Glyph_Class*  clazz );
-
-  void
-  FT_Init_Class_ft_bitmap_glyph_class( FT_Glyph_Class*  clazz );
-
-#ifdef FT_CONFIG_OPTION_MAC_FONTS
-  /* forward declaration of PIC init function from ftrfork.c */
-  /* (not modularized)                                       */
-  void
-  FT_Init_Table_ft_raccess_guess_table( ft_raccess_guess_rec*  record );
-#endif
-
-  /* forward declaration of PIC init functions from ftinit.c */
-  FT_Error
-  ft_create_default_module_classes( FT_Library  library );
-
-  void
-  ft_destroy_default_module_classes( FT_Library  library );
-
-
-  void
-  ft_base_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->base )
-    {
-      /* destroy default module classes            */
-      /* (in case FT_Add_Default_Modules was used) */
-      ft_destroy_default_module_classes( library );
-
-      FT_FREE( pic_container->base );
-      pic_container->base = NULL;
-    }
-  }
-
-
-  FT_Error
-  ft_base_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    BasePIC*           container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->base = container;
-
-    /* initialize default modules list and pointers */
-    error = ft_create_default_module_classes( library );
-    if ( error )
-      goto Exit;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    FT_Init_Class_ft_outline_glyph_class(
-      &container->ft_outline_glyph_class );
-    FT_Init_Class_ft_bitmap_glyph_class(
-      &container->ft_bitmap_glyph_class );
-#ifdef FT_CONFIG_OPTION_MAC_FONTS
-    FT_Init_Table_ft_raccess_guess_table(
-      (ft_raccess_guess_rec*)&container->ft_raccess_guess_table );
-#endif
-
-  Exit:
-    if ( error )
-      ft_base_pic_free( library );
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/base/basepic.h b/thirdparty/freetype/src/base/basepic.h
deleted file mode 100644
index 492d1ede56..0000000000
--- a/thirdparty/freetype/src/base/basepic.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  basepic.h                                                              */
-/*                                                                         */
-/*    The FreeType position independent code services for base.            */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef BASEPIC_H_
-#define BASEPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define FT_OUTLINE_GLYPH_CLASS_GET  &ft_outline_glyph_class
-#define FT_BITMAP_GLYPH_CLASS_GET   &ft_bitmap_glyph_class
-#define FT_DEFAULT_MODULES_GET      ft_default_modules
-
-#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
-#define FT_RACCESS_GUESS_TABLE_GET  ft_raccess_guess_table
-#endif
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-#include FT_GLYPH_H
-
-#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
-#include FT_INTERNAL_RFORK_H
-#endif
-
-
-FT_BEGIN_HEADER
-
-  typedef struct  BasePIC_
-  {
-    FT_Module_Class**  default_module_classes;
-    FT_Glyph_Class     ft_outline_glyph_class;
-    FT_Glyph_Class     ft_bitmap_glyph_class;
-
-#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
-    ft_raccess_guess_rec  ft_raccess_guess_table[FT_RACCESS_N_RULES];
-#endif
-
-  } BasePIC;
-
-
-#define GET_PIC( lib )  ( (BasePIC*)( (lib)->pic_container.base ) )
-
-#define FT_OUTLINE_GLYPH_CLASS_GET                      \
-          ( &GET_PIC( library )->ft_outline_glyph_class )
-#define FT_BITMAP_GLYPH_CLASS_GET                        \
-          ( &GET_PIC( library )->ft_bitmap_glyph_class )
-#define FT_DEFAULT_MODULES_GET                           \
-          ( GET_PIC( library )->default_module_classes )
-
-#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
-#define FT_RACCESS_GUESS_TABLE_GET                       \
-          ( GET_PIC( library )->ft_raccess_guess_table )
-#endif
-
-
-  /* see basepic.c for the implementation */
-  void
-  ft_base_pic_free( FT_Library  library );
-
-  FT_Error
-  ft_base_pic_init( FT_Library  library );
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-  /* */
-
-#endif /* BASEPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/base/ftadvanc.c b/thirdparty/freetype/src/base/ftadvanc.c
index 230c84d6ad..0dfba57036 100644
--- a/thirdparty/freetype/src/base/ftadvanc.c
+++ b/thirdparty/freetype/src/base/ftadvanc.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftadvanc.c                                                             */
-/*                                                                         */
-/*    Quick computation of advance widths (body).                          */
-/*                                                                         */
-/*  Copyright 2008-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftadvanc.c
+ *
+ *   Quick computation of advance widths (body).
+ *
+ * Copyright (C) 2008-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftapi.c b/thirdparty/freetype/src/base/ftapi.c
deleted file mode 100644
index 32d6e95d19..0000000000
--- a/thirdparty/freetype/src/base/ftapi.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftapi.c                                                                */
-/*                                                                         */
-/*    The FreeType compatibility functions (body).                         */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_LIST_H
-#include FT_OUTLINE_H
-#include FT_INTERNAL_OBJECTS_H
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_STREAM_H
-#include FT_TRUETYPE_TABLES_H
-#include FT_OUTLINE_H
-
-
-  /*************************************************************************/
-  /*************************************************************************/
-  /*************************************************************************/
-  /****                                                                 ****/
-  /****                                                                 ****/
-  /****                 C O M P A T I B I L I T Y                       ****/
-  /****                                                                 ****/
-  /****                                                                 ****/
-  /*************************************************************************/
-  /*************************************************************************/
-  /*************************************************************************/
-
-  /* backward compatibility API */
-
-  FT_BASE_DEF( void )
-  FT_New_Memory_Stream( FT_Library  library,
-                        FT_Byte*    base,
-                        FT_ULong    size,
-                        FT_Stream   stream )
-  {
-    FT_UNUSED( library );
-
-    FT_Stream_OpenMemory( stream, base, size );
-  }
-
-
-  FT_BASE_DEF( FT_Error )
-  FT_Seek_Stream( FT_Stream  stream,
-                  FT_ULong   pos )
-  {
-    return FT_Stream_Seek( stream, pos );
-  }
-
-
-  FT_BASE_DEF( FT_Error )
-  FT_Skip_Stream( FT_Stream  stream,
-                  FT_Long    distance )
-  {
-    return FT_Stream_Skip( stream, distance );
-  }
-
-
-  FT_BASE_DEF( FT_Error )
-  FT_Read_Stream( FT_Stream  stream,
-                  FT_Byte*   buffer,
-                  FT_ULong   count )
-  {
-    return FT_Stream_Read( stream, buffer, count );
-  }
-
-
-  FT_BASE_DEF( FT_Error )
-  FT_Read_Stream_At( FT_Stream  stream,
-                     FT_ULong   pos,
-                     FT_Byte*   buffer,
-                     FT_ULong   count )
-  {
-    return FT_Stream_ReadAt( stream, pos, buffer, count );
-  }
-
-
-  FT_BASE_DEF( FT_Error )
-  FT_Extract_Frame( FT_Stream  stream,
-                    FT_ULong   count,
-                    FT_Byte**  pbytes )
-  {
-    return FT_Stream_ExtractFrame( stream, count, pbytes );
-  }
-
-
-  FT_BASE_DEF( void )
-  FT_Release_Frame( FT_Stream  stream,
-                    FT_Byte**  pbytes )
-  {
-    FT_Stream_ReleaseFrame( stream, pbytes );
-  }
-
-  FT_BASE_DEF( FT_Error )
-  FT_Access_Frame( FT_Stream  stream,
-                   FT_ULong   count )
-  {
-    return FT_Stream_EnterFrame( stream, count );
-  }
-
-
-  FT_BASE_DEF( void )
-  FT_Forget_Frame( FT_Stream  stream )
-  {
-    FT_Stream_ExitFrame( stream );
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/base/ftbase.c b/thirdparty/freetype/src/base/ftbase.c
index f914b9b247..fb8cbfcc27 100644
--- a/thirdparty/freetype/src/base/ftbase.c
+++ b/thirdparty/freetype/src/base/ftbase.c
@@ -1,28 +1,29 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbase.c                                                               */
-/*                                                                         */
-/*    Single object library component (body only).                         */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbase.c
+ *
+ *   Single object library component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
 #define  FT_MAKE_OPTION_SINGLE_OBJECT
 
-#include "basepic.c"
 #include "ftadvanc.c"
 #include "ftcalc.c"
+#include "ftcolor.c"
 #include "ftdbgmem.c"
+#include "fterrors.c"
 #include "ftfntfmt.c"
 #include "ftgloadr.c"
 #include "fthash.c"
@@ -30,7 +31,6 @@
 #include "ftmac.c"
 #include "ftobjs.c"
 #include "ftoutln.c"
-#include "ftpic.c"
 #include "ftpsprop.c"
 #include "ftrfork.c"
 #include "ftsnames.c"
diff --git a/thirdparty/freetype/src/base/ftbase.h b/thirdparty/freetype/src/base/ftbase.h
index 7e8cfad959..35b1c47fd9 100644
--- a/thirdparty/freetype/src/base/ftbase.h
+++ b/thirdparty/freetype/src/base/ftbase.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbase.h                                                               */
-/*                                                                         */
-/*    Private functions used in the `base' module (specification).         */
-/*                                                                         */
-/*  Copyright 2008-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya.      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbase.h
+ *
+ *   Private functions used in the `base' module (specification).
+ *
+ * Copyright (C) 2008-2019 by
+ * David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTBASE_H_
diff --git a/thirdparty/freetype/src/base/ftbbox.c b/thirdparty/freetype/src/base/ftbbox.c
index 151e85c97a..0b04fde635 100644
--- a/thirdparty/freetype/src/base/ftbbox.c
+++ b/thirdparty/freetype/src/base/ftbbox.c
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbbox.c                                                               */
-/*                                                                         */
-/*    FreeType bbox computation (body).                                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used        */
-/*  modified and distributed under the terms of the FreeType project       */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This component has a _single_ role: to compute exact outline bounding */
-  /* boxes.                                                                */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftbbox.c
+ *
+ *   FreeType bbox computation (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used
+ * modified and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This component has a _single_ role: to compute exact outline bounding
+   * boxes.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -61,26 +61,28 @@
           ( p->y < bbox.yMin || p->y > bbox.yMax )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    BBox_Move_To                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used as a `move_to' emitter during                */
-  /*    FT_Outline_Decompose().  It simply records the destination point   */
-  /*    in `user->last'. We also update bbox in case contour starts with   */
-  /*    an implicit `on' point.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    to   :: A pointer to the destination vector.                       */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    user :: A pointer to the current walk context.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Always 0.  Needed for the interface only.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   BBox_Move_To
+   *
+   * @Description:
+   *   This function is used as a `move_to' emitter during
+   *   FT_Outline_Decompose().  It simply records the destination point
+   *   in `user->last'. We also update bbox in case contour starts with
+   *   an implicit `on' point.
+   *
+   * @Input:
+   *   to ::
+   *     A pointer to the destination vector.
+   *
+   * @InOut:
+   *   user ::
+   *     A pointer to the current walk context.
+   *
+   * @Return:
+   *   Always 0.  Needed for the interface only.
+   */
   static int
   BBox_Move_To( FT_Vector*  to,
                 TBBox_Rec*  user )
@@ -93,26 +95,28 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    BBox_Line_To                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used as a `line_to' emitter during                */
-  /*    FT_Outline_Decompose().  It simply records the destination point   */
-  /*    in `user->last'; no further computations are necessary because     */
-  /*    bbox already contains both explicit ends of the line segment.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    to   :: A pointer to the destination vector.                       */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    user :: A pointer to the current walk context.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Always 0.  Needed for the interface only.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   BBox_Line_To
+   *
+   * @Description:
+   *   This function is used as a `line_to' emitter during
+   *   FT_Outline_Decompose().  It simply records the destination point
+   *   in `user->last'; no further computations are necessary because
+   *   bbox already contains both explicit ends of the line segment.
+   *
+   * @Input:
+   *   to ::
+   *     A pointer to the destination vector.
+   *
+   * @InOut:
+   *   user ::
+   *     A pointer to the current walk context.
+   *
+   * @Return:
+   *   Always 0.  Needed for the interface only.
+   */
   static int
   BBox_Line_To( FT_Vector*  to,
                 TBBox_Rec*  user )
@@ -123,28 +127,33 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    BBox_Conic_Check                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Find the extrema of a 1-dimensional conic Bezier curve and update  */
-  /*    a bounding range.  This version uses direct computation, as it     */
-  /*    doesn't need square roots.                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    y1  :: The start coordinate.                                       */
-  /*                                                                       */
-  /*    y2  :: The coordinate of the control point.                        */
-  /*                                                                       */
-  /*    y3  :: The end coordinate.                                         */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    min :: The address of the current minimum.                         */
-  /*                                                                       */
-  /*    max :: The address of the current maximum.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   BBox_Conic_Check
+   *
+   * @Description:
+   *   Find the extrema of a 1-dimensional conic Bezier curve and update
+   *   a bounding range.  This version uses direct computation, as it
+   *   doesn't need square roots.
+   *
+   * @Input:
+   *   y1 ::
+   *     The start coordinate.
+   *
+   *   y2 ::
+   *     The coordinate of the control point.
+   *
+   *   y3 ::
+   *     The end coordinate.
+   *
+   * @InOut:
+   *   min ::
+   *     The address of the current minimum.
+   *
+   *   max ::
+   *     The address of the current maximum.
+   */
   static void
   BBox_Conic_Check( FT_Pos   y1,
                     FT_Pos   y2,
@@ -168,32 +177,35 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    BBox_Conic_To                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used as a `conic_to' emitter during               */
-  /*    FT_Outline_Decompose().  It checks a conic Bezier curve with the   */
-  /*    current bounding box, and computes its extrema if necessary to     */
-  /*    update it.                                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    control :: A pointer to a control point.                           */
-  /*                                                                       */
-  /*    to      :: A pointer to the destination vector.                    */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    user    :: The address of the current walk context.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Always 0.  Needed for the interface only.                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    In the case of a non-monotonous arc, we compute directly the       */
-  /*    extremum coordinates, as it is sufficiently fast.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   BBox_Conic_To
+   *
+   * @Description:
+   *   This function is used as a `conic_to' emitter during
+   *   FT_Outline_Decompose().  It checks a conic Bezier curve with the
+   *   current bounding box, and computes its extrema if necessary to
+   *   update it.
+   *
+   * @Input:
+   *   control ::
+   *     A pointer to a control point.
+   *
+   *   to ::
+   *     A pointer to the destination vector.
+   *
+   * @InOut:
+   *   user ::
+   *     The address of the current walk context.
+   *
+   * @Return:
+   *   Always 0.  Needed for the interface only.
+   *
+   * @Note:
+   *   In the case of a non-monotonous arc, we compute directly the
+   *   extremum coordinates, as it is sufficiently fast.
+   */
   static int
   BBox_Conic_To( FT_Vector*  control,
                  FT_Vector*  to,
@@ -222,30 +234,36 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    BBox_Cubic_Check                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Find the extrema of a 1-dimensional cubic Bezier curve and         */
-  /*    update a bounding range.  This version uses iterative splitting    */
-  /*    because it is faster than the exact solution with square roots.    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    p1  :: The start coordinate.                                       */
-  /*                                                                       */
-  /*    p2  :: The coordinate of the first control point.                  */
-  /*                                                                       */
-  /*    p3  :: The coordinate of the second control point.                 */
-  /*                                                                       */
-  /*    p4  :: The end coordinate.                                         */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    min :: The address of the current minimum.                         */
-  /*                                                                       */
-  /*    max :: The address of the current maximum.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   BBox_Cubic_Check
+   *
+   * @Description:
+   *   Find the extrema of a 1-dimensional cubic Bezier curve and
+   *   update a bounding range.  This version uses iterative splitting
+   *   because it is faster than the exact solution with square roots.
+   *
+   * @Input:
+   *   p1 ::
+   *     The start coordinate.
+   *
+   *   p2 ::
+   *     The coordinate of the first control point.
+   *
+   *   p3 ::
+   *     The coordinate of the second control point.
+   *
+   *   p4 ::
+   *     The end coordinate.
+   *
+   * @InOut:
+   *   min ::
+   *     The address of the current minimum.
+   *
+   *   max ::
+   *     The address of the current maximum.
+   */
   static FT_Pos
   cubic_peak( FT_Pos  q1,
               FT_Pos  q2,
@@ -361,34 +379,38 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    BBox_Cubic_To                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used as a `cubic_to' emitter during               */
-  /*    FT_Outline_Decompose().  It checks a cubic Bezier curve with the   */
-  /*    current bounding box, and computes its extrema if necessary to     */
-  /*    update it.                                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    control1 :: A pointer to the first control point.                  */
-  /*                                                                       */
-  /*    control2 :: A pointer to the second control point.                 */
-  /*                                                                       */
-  /*    to       :: A pointer to the destination vector.                   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    user     :: The address of the current walk context.               */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Always 0.  Needed for the interface only.                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    In the case of a non-monotonous arc, we don't compute directly     */
-  /*    extremum coordinates, we subdivide instead.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   BBox_Cubic_To
+   *
+   * @Description:
+   *   This function is used as a `cubic_to' emitter during
+   *   FT_Outline_Decompose().  It checks a cubic Bezier curve with the
+   *   current bounding box, and computes its extrema if necessary to
+   *   update it.
+   *
+   * @Input:
+   *   control1 ::
+   *     A pointer to the first control point.
+   *
+   *   control2 ::
+   *     A pointer to the second control point.
+   *
+   *   to ::
+   *     A pointer to the destination vector.
+   *
+   * @InOut:
+   *   user ::
+   *     The address of the current walk context.
+   *
+   * @Return:
+   *   Always 0.  Needed for the interface only.
+   *
+   * @Note:
+   *   In the case of a non-monotonous arc, we don't compute directly
+   *   extremum coordinates, we subdivide instead.
+   */
   static int
   BBox_Cubic_To( FT_Vector*  control1,
                  FT_Vector*  control2,
@@ -490,12 +512,6 @@
       FT_Error   error;
       TBBox_Rec  user;
 
-#ifdef FT_CONFIG_OPTION_PIC
-      FT_Outline_Funcs  bbox_interface;
-
-
-      Init_Class_bbox_interface( &bbox_interface );
-#endif
 
       user.bbox = bbox;
 
diff --git a/thirdparty/freetype/src/base/ftbdf.c b/thirdparty/freetype/src/base/ftbdf.c
index c4ea502fbc..c0fccd7b7c 100644
--- a/thirdparty/freetype/src/base/ftbdf.c
+++ b/thirdparty/freetype/src/base/ftbdf.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbdf.c                                                                */
-/*                                                                         */
-/*    FreeType API for accessing BDF-specific strings (body).              */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbdf.c
+ *
+ *   FreeType API for accessing BDF-specific strings (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftbitmap.c b/thirdparty/freetype/src/base/ftbitmap.c
index a9746663fa..1bdcd9eff3 100644
--- a/thirdparty/freetype/src/base/ftbitmap.c
+++ b/thirdparty/freetype/src/base/ftbitmap.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbitmap.c                                                             */
-/*                                                                         */
-/*    FreeType utility functions for bitmaps (body).                       */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbitmap.c
+ *
+ *   FreeType utility functions for bitmaps (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -24,8 +24,18 @@
 #include FT_INTERNAL_OBJECTS_H
 
 
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  bitmap
+
+
   static
-  const FT_Bitmap  null_bitmap = { 0, 0, 0, 0, 0, 0, 0, 0 };
+  const FT_Bitmap  null_bitmap = { 0, 0, 0, NULL, 0, 0, 0, NULL };
 
 
   /* documentation is in ftbitmap.h */
@@ -786,6 +796,331 @@
   /* documentation is in ftbitmap.h */
 
   FT_EXPORT_DEF( FT_Error )
+  FT_Bitmap_Blend( FT_Library        library,
+                   const FT_Bitmap*  source_,
+                   const FT_Vector   source_offset_,
+                   FT_Bitmap*        target,
+                   FT_Vector        *atarget_offset,
+                   FT_Color          color )
+  {
+    FT_Error   error = FT_Err_Ok;
+    FT_Memory  memory;
+
+    FT_Bitmap         source_bitmap;
+    const FT_Bitmap*  source;
+
+    FT_Vector  source_offset;
+    FT_Vector  target_offset;
+
+    FT_Bool  free_source_bitmap          = 0;
+    FT_Bool  free_target_bitmap_on_error = 0;
+
+    FT_Pos  source_llx, source_lly, source_urx, source_ury;
+    FT_Pos  target_llx, target_lly, target_urx, target_ury;
+    FT_Pos  final_llx, final_lly, final_urx, final_ury;
+
+    unsigned int  final_rows, final_width;
+    long          x, y;
+
+
+    if ( !library || !target || !source_ || !atarget_offset )
+      return FT_THROW( Invalid_Argument );
+
+    memory = library->memory;
+
+    if ( !( target->pixel_mode == FT_PIXEL_MODE_NONE     ||
+            ( target->pixel_mode == FT_PIXEL_MODE_BGRA &&
+              target->buffer                           ) ) )
+      return FT_THROW( Invalid_Argument );
+
+    if ( source_->pixel_mode == FT_PIXEL_MODE_NONE )
+      return FT_Err_Ok;               /* nothing to do */
+
+    /* pitches must have the same sign */
+    if ( target->pixel_mode == FT_PIXEL_MODE_BGRA &&
+         ( source_->pitch ^ target->pitch ) < 0   )
+      return FT_THROW( Invalid_Argument );
+
+    if ( !( source_->width && source_->rows ) )
+      return FT_Err_Ok;               /* nothing to do */
+
+    /* assure integer pixel offsets */
+    source_offset.x = FT_PIX_FLOOR( source_offset_.x );
+    source_offset.y = FT_PIX_FLOOR( source_offset_.y );
+    target_offset.x = FT_PIX_FLOOR( atarget_offset->x );
+    target_offset.y = FT_PIX_FLOOR( atarget_offset->y );
+
+    /* get source bitmap dimensions */
+    source_llx = source_offset.x;
+    if ( FT_LONG_MIN + (FT_Pos)( source_->rows << 6 ) + 64 > source_offset.y )
+    {
+      FT_TRACE5((
+        "FT_Bitmap_Blend: y coordinate overflow in source bitmap\n" ));
+      return FT_THROW( Invalid_Argument );
+    }
+    source_lly = source_offset.y - ( source_->rows << 6 );
+
+    if ( FT_LONG_MAX - (FT_Pos)( source_->width << 6 ) - 64 < source_llx )
+    {
+      FT_TRACE5((
+        "FT_Bitmap_Blend: x coordinate overflow in source bitmap\n" ));
+      return FT_THROW( Invalid_Argument );
+    }
+    source_urx = source_llx + ( source_->width << 6 );
+    source_ury = source_offset.y;
+
+    /* get target bitmap dimensions */
+    if ( target->width && target->rows )
+    {
+      target_llx = target_offset.x;
+      if ( FT_LONG_MIN + (FT_Pos)( target->rows << 6 ) > target_offset.y )
+      {
+        FT_TRACE5((
+          "FT_Bitmap_Blend: y coordinate overflow in target bitmap\n" ));
+        return FT_THROW( Invalid_Argument );
+      }
+      target_lly = target_offset.y - ( target->rows << 6 );
+
+      if ( FT_LONG_MAX - (FT_Pos)( target->width << 6 ) < target_llx )
+      {
+        FT_TRACE5((
+          "FT_Bitmap_Blend: x coordinate overflow in target bitmap\n" ));
+        return FT_THROW( Invalid_Argument );
+      }
+      target_urx = target_llx + ( target->width << 6 );
+      target_ury = target_offset.y;
+    }
+    else
+    {
+      target_llx = FT_LONG_MAX;
+      target_lly = FT_LONG_MAX;
+      target_urx = FT_LONG_MIN;
+      target_ury = FT_LONG_MIN;
+    }
+
+    /* compute final bitmap dimensions */
+    final_llx = FT_MIN( source_llx, target_llx );
+    final_lly = FT_MIN( source_lly, target_lly );
+    final_urx = FT_MAX( source_urx, target_urx );
+    final_ury = FT_MAX( source_ury, target_ury );
+
+    final_width = ( final_urx - final_llx ) >> 6;
+    final_rows  = ( final_ury - final_lly ) >> 6;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    FT_TRACE5(( "FT_Bitmap_Blend:\n"
+                "  source bitmap: (%d, %d) -- (%d, %d); %d x %d\n",
+      source_llx / 64, source_lly / 64,
+      source_urx / 64, source_ury / 64,
+      source_->width, source_->rows ));
+
+    if ( target->width && target->rows )
+      FT_TRACE5(( "  target bitmap: (%d, %d) -- (%d, %d); %d x %d\n",
+        target_llx / 64, target_lly / 64,
+        target_urx / 64, target_ury / 64,
+        target->width, target->rows ));
+    else
+      FT_TRACE5(( "  target bitmap: empty\n" ));
+
+    FT_TRACE5(( "  final bitmap: (%d, %d) -- (%d, %d); %d x %d\n",
+      final_llx / 64, final_lly / 64,
+      final_urx / 64, final_ury / 64,
+      final_width, final_rows ));
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+    /* for blending, set offset vector of final bitmap */
+    /* temporarily to (0,0)                            */
+    source_llx -= final_llx;
+    source_lly -= final_lly;
+
+    if ( target->width && target->rows )
+    {
+      target_llx -= final_llx;
+      target_lly -= final_lly;
+    }
+
+    /* set up target bitmap */
+    if ( target->pixel_mode == FT_PIXEL_MODE_NONE )
+    {
+      /* create new empty bitmap */
+      target->width      = final_width;
+      target->rows       = final_rows;
+      target->pixel_mode = FT_PIXEL_MODE_BGRA;
+      target->pitch      = (int)final_width * 4;
+      target->num_grays  = 256;
+
+      if ( FT_LONG_MAX / target->pitch < (int)target->rows )
+      {
+        FT_TRACE5(( "FT_Blend_Bitmap: target bitmap too large (%d x %d)\n",
+                     final_width, final_rows ));
+        return FT_THROW( Invalid_Argument );
+      }
+
+      if ( FT_ALLOC( target->buffer, target->pitch * (int)target->rows ) )
+        return error;
+
+      free_target_bitmap_on_error = 1;
+    }
+    else if ( target->width != final_width ||
+              target->rows  != final_rows  )
+    {
+      /* adjust old bitmap to enlarged size */
+      int  pitch, new_pitch;
+
+      unsigned char*  buffer = NULL;
+
+
+      pitch = target->pitch;
+      if ( pitch < 0 )
+        pitch = -pitch;
+
+      new_pitch = (int)final_width * 4;
+
+      if ( FT_LONG_MAX / new_pitch < (int)final_rows )
+      {
+        FT_TRACE5(( "FT_Blend_Bitmap: target bitmap too large (%d x %d)\n",
+                     final_width, final_rows ));
+        return FT_THROW( Invalid_Argument );
+      }
+
+      /* TODO: provide an in-buffer solution for large bitmaps */
+      /*       to avoid allocation of a new buffer             */
+      if ( FT_ALLOC( buffer, new_pitch * (int)final_rows ) )
+        goto Error;
+
+      /* copy data to new buffer */
+      x = target_llx >> 6;
+      y = target_lly >> 6;
+
+      /* the bitmap flow is from top to bottom, */
+      /* but y is measured from bottom to top   */
+      if ( target->pitch < 0 )
+      {
+        /* XXX */
+      }
+      else
+      {
+        unsigned char*  p =
+          target->buffer;
+        unsigned char*  q =
+          buffer +
+          ( final_rows - y - target->rows ) * new_pitch +
+          x * 4;
+        unsigned char*  limit_p =
+          p + pitch * (int)target->rows;
+
+
+        while ( p < limit_p )
+        {
+          FT_MEM_COPY( q, p, pitch );
+
+          p += pitch;
+          q += new_pitch;
+        }
+      }
+
+      FT_FREE( target->buffer );
+
+      target->width = final_width;
+      target->rows  = final_rows;
+
+      if ( target->pitch < 0 )
+        target->pitch = -new_pitch;
+      else
+        target->pitch = new_pitch;
+
+      target->buffer = buffer;
+    }
+
+    /* adjust source bitmap if necessary */
+    if ( source_->pixel_mode != FT_PIXEL_MODE_GRAY )
+    {
+      FT_Bitmap_Init( &source_bitmap );
+      error = FT_Bitmap_Convert( library, source_, &source_bitmap, 1 );
+      if ( error )
+        goto Error;
+
+      source             = &source_bitmap;
+      free_source_bitmap = 1;
+    }
+    else
+      source = source_;
+
+    /* do blending; the code below returns pre-multiplied channels, */
+    /* similar to what FreeType gets from `CBDT' tables             */
+    x = source_llx >> 6;
+    y = source_lly >> 6;
+
+    /* the bitmap flow is from top to bottom, */
+    /* but y is measured from bottom to top   */
+    if ( target->pitch < 0 )
+    {
+      /* XXX */
+    }
+    else
+    {
+      unsigned char*  p =
+        source->buffer;
+      unsigned char*  q =
+        target->buffer +
+        ( target->rows - y - source->rows ) * target->pitch +
+        x * 4;
+      unsigned char*  limit_p =
+        p + source->pitch * (int)source->rows;
+
+
+      while ( p < limit_p )
+      {
+        unsigned char*  r       = p;
+        unsigned char*  s       = q;
+        unsigned char*  limit_r = r + source->width;
+
+
+        while ( r < limit_r )
+        {
+          int  aa = *r++;
+          int  fa = color.alpha * aa / 255;
+
+          int  fb = color.blue * fa / 255;
+          int  fg = color.green * fa / 255;
+          int  fr = color.red * fa / 255;
+
+          int  ba2 = 255 - fa;
+
+          int  bb = s[0];
+          int  bg = s[1];
+          int  br = s[2];
+          int  ba = s[3];
+
+
+          *s++ = (unsigned char)( bb * ba2 / 255 + fb );
+          *s++ = (unsigned char)( bg * ba2 / 255 + fg );
+          *s++ = (unsigned char)( br * ba2 / 255 + fr );
+          *s++ = (unsigned char)( ba * ba2 / 255 + fa );
+        }
+
+        p += source->pitch;
+        q += target->pitch;
+      }
+    }
+
+    atarget_offset->x = final_llx;
+    atarget_offset->y = final_lly + ( final_rows << 6 );
+
+  Error:
+    if ( error && free_target_bitmap_on_error )
+      FT_Bitmap_Done( library, target );
+
+    if ( free_source_bitmap )
+      FT_Bitmap_Done( library, &source_bitmap );
+
+    return error;
+  }
+
+
+  /* documentation is in ftbitmap.h */
+
+  FT_EXPORT_DEF( FT_Error )
   FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot  slot )
   {
     if ( slot && slot->format == FT_GLYPH_FORMAT_BITMAP   &&
diff --git a/thirdparty/freetype/src/base/ftcalc.c b/thirdparty/freetype/src/base/ftcalc.c
index f4ff45f8ef..315dc44185 100644
--- a/thirdparty/freetype/src/base/ftcalc.c
+++ b/thirdparty/freetype/src/base/ftcalc.c
@@ -1,35 +1,35 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcalc.c                                                               */
-/*                                                                         */
-/*    Arithmetic computations (body).                                      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Support for 1-complement arithmetic has been totally dropped in this  */
-  /* release.  You can still write your own code if you need it.           */
-  /*                                                                       */
-  /*************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Implementing basic computation routines.                              */
-  /*                                                                       */
-  /* FT_MulDiv(), FT_MulFix(), FT_DivFix(), FT_RoundFix(), FT_CeilFix(),   */
-  /* and FT_FloorFix() are declared in freetype.h.                         */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftcalc.c
+ *
+ *   Arithmetic computations (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * Support for 1-complement arithmetic has been totally dropped in this
+   * release.  You can still write your own code if you need it.
+   *
+   */
+
+  /**************************************************************************
+   *
+   * Implementing basic computation routines.
+   *
+   * FT_MulDiv(), FT_MulFix(), FT_DivFix(), FT_RoundFix(), FT_CeilFix(),
+   * and FT_FloorFix() are declared in freetype.h.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -58,14 +58,14 @@
 #endif /* !FT_LONG64 */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_calc
+#define FT_COMPONENT  calc
 
 
   /* transfer sign, leaving a positive number;                        */
@@ -516,10 +516,10 @@
 #elif 0
 
     /*
-     *  This code is nonportable.  See comment below.
+     * This code is nonportable.  See comment below.
      *
-     *  However, on a platform where right-shift of a signed quantity fills
-     *  the leftmost bits by copying the sign bit, it might be faster.
+     * However, on a platform where right-shift of a signed quantity fills
+     * the leftmost bits by copying the sign bit, it might be faster.
      */
 
     FT_Long    sa, sb;
@@ -527,22 +527,22 @@
 
 
     /*
-     *  This is a clever way of converting a signed number `a' into its
-     *  absolute value (stored back into `a') and its sign.  The sign is
-     *  stored in `sa'; 0 means `a' was positive or zero, and -1 means `a'
-     *  was negative.  (Similarly for `b' and `sb').
+     * This is a clever way of converting a signed number `a' into its
+     * absolute value (stored back into `a') and its sign.  The sign is
+     * stored in `sa'; 0 means `a' was positive or zero, and -1 means `a'
+     * was negative.  (Similarly for `b' and `sb').
      *
-     *  Unfortunately, it doesn't work (at least not portably).
+     * Unfortunately, it doesn't work (at least not portably).
      *
-     *  It makes the assumption that right-shift on a negative signed value
-     *  fills the leftmost bits by copying the sign bit.  This is wrong.
-     *  According to K&R 2nd ed, section `A7.8 Shift Operators' on page 206,
-     *  the result of right-shift of a negative signed value is
-     *  implementation-defined.  At least one implementation fills the
-     *  leftmost bits with 0s (i.e., it is exactly the same as an unsigned
-     *  right shift).  This means that when `a' is negative, `sa' ends up
-     *  with the value 1 rather than -1.  After that, everything else goes
-     *  wrong.
+     * It makes the assumption that right-shift on a negative signed value
+     * fills the leftmost bits by copying the sign bit.  This is wrong.
+     * According to K&R 2nd ed, section `A7.8 Shift Operators' on page 206,
+     * the result of right-shift of a negative signed value is
+     * implementation-defined.  At least one implementation fills the
+     * leftmost bits with 0s (i.e., it is exactly the same as an unsigned
+     * right shift).  This means that when `a' is negative, `sa' ends up
+     * with the value 1 rather than -1.  After that, everything else goes
+     * wrong.
      */
     sa = ( a_ >> ( sizeof ( a_ ) * 8 - 1 ) );
     a  = ( a_ ^ sa ) - sa;
@@ -701,8 +701,8 @@
     if ( !delta )
       return FT_THROW( Invalid_Argument );  /* matrix can't be inverted */
 
-    matrix->xy = - FT_DivFix( matrix->xy, delta );
-    matrix->yx = - FT_DivFix( matrix->yx, delta );
+    matrix->xy = -FT_DivFix( matrix->xy, delta );
+    matrix->yx = -FT_DivFix( matrix->yx, delta );
 
     xx = matrix->xx;
     yy = matrix->yy;
@@ -747,6 +747,76 @@
 
   /* documentation is in ftcalc.h */
 
+  FT_BASE_DEF( FT_Bool )
+  FT_Matrix_Check( const FT_Matrix*  matrix )
+  {
+    FT_Matrix  m;
+    FT_Fixed   val[4];
+    FT_Fixed   nonzero_minval, maxval;
+    FT_Fixed   temp1, temp2;
+    FT_UInt    i;
+
+
+    if ( !matrix )
+      return 0;
+
+    val[0] = FT_ABS( matrix->xx );
+    val[1] = FT_ABS( matrix->xy );
+    val[2] = FT_ABS( matrix->yx );
+    val[3] = FT_ABS( matrix->yy );
+
+    /*
+     * To avoid overflow, we ensure that each value is not larger than
+     *
+     *   int(sqrt(2^31 / 4)) = 23170  ;
+     *
+     * we also check that no value becomes zero if we have to scale.
+     */
+
+    maxval         = 0;
+    nonzero_minval = FT_LONG_MAX;
+
+    for ( i = 0; i < 4; i++ )
+    {
+      if ( val[i] > maxval )
+        maxval = val[i];
+      if ( val[i] && val[i] < nonzero_minval )
+        nonzero_minval = val[i];
+    }
+
+    /* we only handle 32bit values */
+    if ( maxval > 0x7FFFFFFFL )
+      return 0;
+
+    if ( maxval > 23170 )
+    {
+      FT_Fixed  scale = FT_DivFix( maxval, 23170 );
+
+
+      if ( !FT_DivFix( nonzero_minval, scale ) )
+        return 0;    /* value range too large */
+
+      m.xx = FT_DivFix( matrix->xx, scale );
+      m.xy = FT_DivFix( matrix->xy, scale );
+      m.yx = FT_DivFix( matrix->yx, scale );
+      m.yy = FT_DivFix( matrix->yy, scale );
+    }
+    else
+      m = *matrix;
+
+    temp1 = FT_ABS( m.xx * m.yy - m.xy * m.yx );
+    temp2 = m.xx * m.xx + m.xy * m.xy + m.yx * m.yx + m.yy * m.yy;
+
+    if ( temp1 == 0         ||
+         temp2 / temp1 > 50 )
+      return 0;
+
+    return 1;
+  }
+
+
+  /* documentation is in ftcalc.h */
+
   FT_BASE_DEF( void )
   FT_Vector_Transform_Scaled( FT_Vector*        vector,
                               const FT_Matrix*  matrix,
@@ -913,9 +983,13 @@
                          FT_Pos  out_x,
                          FT_Pos  out_y )
   {
+    /* we silently ignore overflow errors since such large values */
+    /* lead to even more (harmless) rendering errors later on     */
+
 #ifdef FT_LONG64
 
-    FT_Int64  delta = (FT_Int64)in_x * out_y - (FT_Int64)in_y * out_x;
+    FT_Int64  delta = SUB_INT64( MUL_INT64( in_x, out_y ),
+                                 MUL_INT64( in_y, out_x ) );
 
 
     return ( delta > 0 ) - ( delta < 0 );
@@ -925,8 +999,6 @@
     FT_Int  result;
 
 
-    /* we silently ignore overflow errors, since such large values */
-    /* lead to even more (harmless) rendering errors later on      */
     if ( ADD_LONG( FT_ABS( in_x ), FT_ABS( out_y ) ) <= 131071L &&
          ADD_LONG( FT_ABS( in_y ), FT_ABS( out_x ) ) <= 131071L )
     {
diff --git a/thirdparty/freetype/src/base/ftcid.c b/thirdparty/freetype/src/base/ftcid.c
index f5184649bf..190b23f357 100644
--- a/thirdparty/freetype/src/base/ftcid.c
+++ b/thirdparty/freetype/src/base/ftcid.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcid.c                                                                */
-/*                                                                         */
-/*    FreeType API for accessing CID font information.                     */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  Derek Clegg and Michael Toftdal.                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcid.c
+ *
+ *   FreeType API for accessing CID font information.
+ *
+ * Copyright (C) 2007-2019 by
+ * Derek Clegg and Michael Toftdal.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftcolor.c b/thirdparty/freetype/src/base/ftcolor.c
new file mode 100644
index 0000000000..8cb057a365
--- /dev/null
+++ b/thirdparty/freetype/src/base/ftcolor.c
@@ -0,0 +1,157 @@
+/****************************************************************************
+ *
+ * ftcolor.c
+ *
+ *   FreeType's glyph color management (body).
+ *
+ * Copyright (C) 2018-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_SFNT_H
+#include FT_INTERNAL_TRUETYPE_TYPES_H
+#include FT_COLOR_H
+
+
+#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
+
+  static
+  const FT_Palette_Data  null_palette_data = { 0, NULL, NULL, 0, NULL };
+
+
+  /* documentation is in ftcolor.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Palette_Data_Get( FT_Face           face,
+                       FT_Palette_Data  *apalette_data )
+  {
+    if ( !face )
+      return FT_THROW( Invalid_Face_Handle );
+    if ( !apalette_data)
+      return FT_THROW( Invalid_Argument );
+
+    if ( FT_IS_SFNT( face ) )
+      *apalette_data = ( (TT_Face)face )->palette_data;
+    else
+      *apalette_data = null_palette_data;
+
+    return FT_Err_Ok;
+  }
+
+
+  /* documentation is in ftcolor.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Palette_Select( FT_Face     face,
+                     FT_UShort   palette_index,
+                     FT_Color*  *apalette )
+  {
+    FT_Error  error;
+
+    TT_Face       ttface;
+    SFNT_Service  sfnt;
+
+
+    if ( !face )
+      return FT_THROW( Invalid_Face_Handle );
+
+    if ( !FT_IS_SFNT( face ) )
+    {
+      if ( apalette )
+        *apalette = NULL;
+
+      return FT_Err_Ok;
+    }
+
+    ttface = (TT_Face)face;
+    sfnt   = (SFNT_Service)ttface->sfnt;
+
+    error = sfnt->set_palette( ttface, palette_index );
+    if ( error )
+      return error;
+
+    ttface->palette_index = palette_index;
+
+    if ( apalette )
+      *apalette = ttface->palette;
+
+    return FT_Err_Ok;
+  }
+
+
+  /* documentation is in ftcolor.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Palette_Set_Foreground_Color( FT_Face   face,
+                                   FT_Color  foreground_color )
+  {
+    TT_Face  ttface;
+
+
+    if ( !face )
+      return FT_THROW( Invalid_Face_Handle );
+
+    if ( !FT_IS_SFNT( face ) )
+      return FT_Err_Ok;
+
+    ttface = (TT_Face)face;
+
+    ttface->foreground_color      = foreground_color;
+    ttface->have_foreground_color = 1;
+
+    return FT_Err_Ok;
+  }
+
+#else /* !TT_CONFIG_OPTION_COLOR_LAYERS */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Palette_Data_Get( FT_Face           face,
+                       FT_Palette_Data  *apalette_data )
+  {
+    FT_UNUSED( face );
+    FT_UNUSED( apalette_data );
+
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Palette_Select( FT_Face     face,
+                     FT_UShort   palette_index,
+                     FT_Color*  *apalette )
+  {
+    FT_UNUSED( face );
+    FT_UNUSED( palette_index );
+    FT_UNUSED( apalette );
+
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Palette_Set_Foreground_Color( FT_Face   face,
+                                   FT_Color  foreground_color )
+  {
+    FT_UNUSED( face );
+    FT_UNUSED( foreground_color );
+
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
+#endif /* !TT_CONFIG_OPTION_COLOR_LAYERS */
+
+
+/* END */
diff --git a/thirdparty/freetype/src/base/ftdbgmem.c b/thirdparty/freetype/src/base/ftdbgmem.c
index c33d8acb4e..55cd269e1f 100644
--- a/thirdparty/freetype/src/base/ftdbgmem.c
+++ b/thirdparty/freetype/src/base/ftdbgmem.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftdbgmem.c                                                             */
-/*                                                                         */
-/*    Memory debugger (body).                                              */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftdbgmem.c
+ *
+ *   Memory debugger (body).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -50,9 +50,9 @@
 #define FT_MEM_VAL( addr )  ( (FT_PtrDist)(FT_Pointer)( addr ) )
 
   /*
-   *  This structure holds statistics for a single allocation/release
-   *  site.  This is useful to know where memory operations happen the
-   *  most.
+   * This structure holds statistics for a single allocation/release
+   * site.  This is useful to know where memory operations happen the
+   * most.
    */
   typedef struct  FT_MemSourceRec_
   {
@@ -76,17 +76,17 @@
 
 
   /*
-   *  We don't need a resizable array for the memory sources because
-   *  their number is pretty limited within FreeType.
+   * We don't need a resizable array for the memory sources because
+   * their number is pretty limited within FreeType.
    */
 #define FT_MEM_SOURCE_BUCKETS  128
 
   /*
-   *  This structure holds information related to a single allocated
-   *  memory block.  If KEEPALIVE is defined, blocks that are freed by
-   *  FreeType are never released to the system.  Instead, their `size'
-   *  field is set to `-size'.  This is mainly useful to detect double
-   *  frees, at the price of a large memory footprint during execution.
+   * This structure holds information related to a single allocated
+   * memory block.  If KEEPALIVE is defined, blocks that are freed by
+   * FreeType are never released to the system.  Instead, their `size'
+   * field is set to `-size'.  This is mainly useful to detect double
+   * frees, at the price of a large memory footprint during execution.
    */
   typedef struct  FT_MemNodeRec_
   {
@@ -106,8 +106,8 @@
 
 
   /*
-   *  The global structure, containing compound statistics and all hash
-   *  tables.
+   * The global structure, containing compound statistics and all hash
+   * tables.
    */
   typedef struct  FT_MemTableRec_
   {
@@ -146,8 +146,8 @@
 
 
   /*
-   *  Prime numbers are ugly to handle.  It would be better to implement
-   *  L-Hashing, which is 10% faster and doesn't require divisions.
+   * Prime numbers are ugly to handle.  It would be better to implement
+   * L-Hashing, which is 10% faster and doesn't require divisions.
    */
   static const FT_Int  ft_mem_primes[] =
   {
diff --git a/thirdparty/freetype/src/base/ftdebug.c b/thirdparty/freetype/src/base/ftdebug.c
index fe26309101..ec72337873 100644
--- a/thirdparty/freetype/src/base/ftdebug.c
+++ b/thirdparty/freetype/src/base/ftdebug.c
@@ -1,44 +1,44 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftdebug.c                                                              */
-/*                                                                         */
-/*    Debugging and logging component (body).                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This component contains various macros and functions used to ease the */
-  /* debugging of the FreeType engine.  Its main purpose is in assertion   */
-  /* checking, tracing, and error detection.                               */
-  /*                                                                       */
-  /* There are now three debugging modes:                                  */
-  /*                                                                       */
-  /* - trace mode                                                          */
-  /*                                                                       */
-  /*   Error and trace messages are sent to the log file (which can be the */
-  /*   standard error output).                                             */
-  /*                                                                       */
-  /* - error mode                                                          */
-  /*                                                                       */
-  /*   Only error messages are generated.                                  */
-  /*                                                                       */
-  /* - release mode:                                                       */
-  /*                                                                       */
-  /*   No error message is sent or generated.  The code is free from any   */
-  /*   debugging parts.                                                    */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftdebug.c
+ *
+ *   Debugging and logging component (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This component contains various macros and functions used to ease the
+   * debugging of the FreeType engine.  Its main purpose is in assertion
+   * checking, tracing, and error detection.
+   *
+   * There are now three debugging modes:
+   *
+   * - trace mode
+   *
+   *   Error and trace messages are sent to the log file (which can be the
+   *   standard error output).
+   *
+   * - error mode
+   *
+   *   Only error messages are generated.
+   *
+   * - release mode:
+   *
+   *   No error message is sent or generated.  The code is free from any
+   *   debugging parts.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -87,9 +87,19 @@
             int          line,
             const char*  file )
   {
+#if 0
+    /* activating the code in this block makes FreeType very chatty */
+    fprintf( stderr,
+             "%s:%d: error 0x%02x: %s\n",
+             file,
+             line,
+             error,
+             FT_Error_String( error ) );
+#else
     FT_UNUSED( error );
     FT_UNUSED( line );
     FT_UNUSED( file );
+#endif
 
     return 0;
   }
@@ -100,9 +110,16 @@
 
 #ifdef FT_DEBUG_LEVEL_TRACE
 
-  /* array of trace levels, initialized to 0 */
-  int  ft_trace_levels[trace_count];
+  /* array of trace levels, initialized to 0; */
+  /* this gets adjusted at run-time           */
+  static int  ft_trace_levels_enabled[trace_count];
 
+  /* array of trace levels, always initialized to 0 */
+  static int  ft_trace_levels_disabled[trace_count];
+
+  /* a pointer to either `ft_trace_levels_enabled' */
+  /* or `ft_trace_levels_disabled'                 */
+  int*  ft_trace_levels;
 
   /* define array of trace toggle names */
 #define FT_TRACE_DEF( x )  #x ,
@@ -140,24 +157,42 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Initialize the tracing sub-system.  This is done by retrieving the    */
-  /* value of the `FT2_DEBUG' environment variable.  It must be a list of  */
-  /* toggles, separated by spaces, `;', or `,'.  Example:                  */
-  /*                                                                       */
-  /*    export FT2_DEBUG="any:3 memory:7 stream:5"                         */
-  /*                                                                       */
-  /* This requests that all levels be set to 3, except the trace level for */
-  /* the memory and stream components which are set to 7 and 5,            */
-  /* respectively.                                                         */
-  /*                                                                       */
-  /* See the file `include/freetype/internal/fttrace.h' for details of     */
-  /* the available toggle names.                                           */
-  /*                                                                       */
-  /* The level must be between 0 and 7; 0 means quiet (except for serious  */
-  /* runtime errors), and 7 means _very_ verbose.                          */
-  /*                                                                       */
+  /* documentation is in ftdebug.h */
+
+  FT_BASE_DEF( void )
+  FT_Trace_Disable( void )
+  {
+    ft_trace_levels = ft_trace_levels_disabled;
+  }
+
+
+  /* documentation is in ftdebug.h */
+
+  FT_BASE_DEF( void )
+  FT_Trace_Enable( void )
+  {
+    ft_trace_levels = ft_trace_levels_enabled;
+  }
+
+
+  /**************************************************************************
+   *
+   * Initialize the tracing sub-system.  This is done by retrieving the
+   * value of the `FT2_DEBUG' environment variable.  It must be a list of
+   * toggles, separated by spaces, `;', or `,'.  Example:
+   *
+   *   export FT2_DEBUG="any:3 memory:7 stream:5"
+   *
+   * This requests that all levels be set to 3, except the trace level for
+   * the memory and stream components which are set to 7 and 5,
+   * respectively.
+   *
+   * See the file `include/freetype/internal/fttrace.h' for details of
+   * the available toggle names.
+   *
+   * The level must be between 0 and 7; 0 means quiet (except for serious
+   * runtime errors), and 7 means _very_ verbose.
+   */
   FT_BASE_DEF( void )
   ft_debug_init( void )
   {
@@ -223,14 +258,16 @@
             {
               /* special case for `any' */
               for ( n = 0; n < trace_count; n++ )
-                ft_trace_levels[n] = level;
+                ft_trace_levels_enabled[n] = level;
             }
             else
-              ft_trace_levels[found] = level;
+              ft_trace_levels_enabled[found] = level;
           }
         }
       }
     }
+
+    ft_trace_levels = ft_trace_levels_enabled;
   }
 
 
@@ -260,6 +297,22 @@
   }
 
 
+  FT_BASE_DEF( void )
+  FT_Trace_Disable( void )
+  {
+    /* nothing */
+  }
+
+
+  /* documentation is in ftdebug.h */
+
+  FT_BASE_DEF( void )
+  FT_Trace_Enable( void )
+  {
+    /* nothing */
+  }
+
+
 #endif /* !FT_DEBUG_LEVEL_TRACE */
 
 
diff --git a/thirdparty/freetype/src/base/fterrors.c b/thirdparty/freetype/src/base/fterrors.c
new file mode 100644
index 0000000000..4ef326d8e2
--- /dev/null
+++ b/thirdparty/freetype/src/base/fterrors.c
@@ -0,0 +1,45 @@
+/****************************************************************************
+ *
+ * fterrors.c
+ *
+ *   FreeType API for error code handling.
+ *
+ * Copyright (C) 2018-2019 by
+ * Armin Hasitzka, David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include <ft2build.h>
+#include FT_ERRORS_H
+
+
+  /* documentation is in fterrors.h */
+
+  FT_EXPORT_DEF( const char* )
+  FT_Error_String( FT_Error  error_code )
+  {
+    if ( error_code <  0                                ||
+         error_code >= FT_ERR_CAT( FT_ERR_PREFIX, Max ) )
+      return NULL;
+
+#if defined( FT_CONFIG_OPTION_ERROR_STRINGS ) || \
+    defined( FT_DEBUG_LEVEL_ERROR )
+
+#undef FTERRORS_H_
+#define FT_ERROR_START_LIST     switch ( FT_ERROR_BASE( error_code ) ) {
+#define FT_ERRORDEF( e, v, s )    case v: return s;
+#define FT_ERROR_END_LIST       }
+
+#include FT_ERRORS_H
+
+#endif /* defined( FT_CONFIG_OPTION_ERROR_STRINGS ) || ... */
+
+    return NULL;
+  }
diff --git a/thirdparty/freetype/src/base/ftfntfmt.c b/thirdparty/freetype/src/base/ftfntfmt.c
index a2900ceb09..54ba537416 100644
--- a/thirdparty/freetype/src/base/ftfntfmt.c
+++ b/thirdparty/freetype/src/base/ftfntfmt.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftfntfmt.c                                                             */
-/*                                                                         */
-/*    FreeType utility file for font formats (body).                       */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftfntfmt.c
+ *
+ *   FreeType utility file for font formats (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftfstype.c b/thirdparty/freetype/src/base/ftfstype.c
index e6cdf6e2ec..45e2d8089b 100644
--- a/thirdparty/freetype/src/base/ftfstype.c
+++ b/thirdparty/freetype/src/base/ftfstype.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftfstype.c                                                             */
-/*                                                                         */
-/*    FreeType utility file to access FSType data (body).                  */
-/*                                                                         */
-/*  Copyright 2008-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftfstype.c
+ *
+ *   FreeType utility file to access FSType data (body).
+ *
+ * Copyright (C) 2008-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_TYPE1_TABLES_H
diff --git a/thirdparty/freetype/src/base/ftgasp.c b/thirdparty/freetype/src/base/ftgasp.c
index 4f80bba630..720fb113ca 100644
--- a/thirdparty/freetype/src/base/ftgasp.c
+++ b/thirdparty/freetype/src/base/ftgasp.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgasp.c                                                               */
-/*                                                                         */
-/*    Access of TrueType's `gasp' table (body).                            */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgasp.c
+ *
+ *   Access of TrueType's `gasp' table (body).
+ *
+ * Copyright (C) 2007-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftgloadr.c b/thirdparty/freetype/src/base/ftgloadr.c
index 47202496b9..bfeed461a8 100644
--- a/thirdparty/freetype/src/base/ftgloadr.c
+++ b/thirdparty/freetype/src/base/ftgloadr.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgloadr.c                                                             */
-/*                                                                         */
-/*    The FreeType glyph loader (body).                                    */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgloadr.c
+ *
+ *   The FreeType glyph loader (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -23,7 +23,7 @@
 #include FT_INTERNAL_OBJECTS_H
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gloader
+#define FT_COMPONENT  gloader
 
 
   /*************************************************************************/
@@ -38,31 +38,31 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The glyph loader is a simple object which is used to load a set of    */
-  /* glyphs easily.  It is critical for the correct loading of composites. */
-  /*                                                                       */
-  /* Ideally, one can see it as a stack of abstract `glyph' objects.       */
-  /*                                                                       */
-  /*   loader.base     Is really the bottom of the stack.  It describes a  */
-  /*                   single glyph image made of the juxtaposition of     */
-  /*                   several glyphs (those `in the stack').              */
-  /*                                                                       */
-  /*   loader.current  Describes the top of the stack, on which a new      */
-  /*                   glyph can be loaded.                                */
-  /*                                                                       */
-  /*   Rewind          Clears the stack.                                   */
-  /*   Prepare         Set up `loader.current' for addition of a new glyph */
-  /*                   image.                                              */
-  /*   Add             Add the `current' glyph image to the `base' one,    */
-  /*                   and prepare for another one.                        */
-  /*                                                                       */
-  /* The glyph loader is now a base object.  Each driver used to           */
-  /* re-implement it in one way or the other, which wasted code and        */
-  /* energy.                                                               */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * The glyph loader is a simple object which is used to load a set of
+   * glyphs easily.  It is critical for the correct loading of composites.
+   *
+   * Ideally, one can see it as a stack of abstract `glyph' objects.
+   *
+   *   loader.base     Is really the bottom of the stack.  It describes a
+   *                   single glyph image made of the juxtaposition of
+   *                   several glyphs (those `in the stack').
+   *
+   *   loader.current  Describes the top of the stack, on which a new
+   *                   glyph can be loaded.
+   *
+   *   Rewind          Clears the stack.
+   *   Prepare         Set up `loader.current' for addition of a new glyph
+   *                   image.
+   *   Add             Add the `current' glyph image to the `base' one,
+   *                   and prepare for another one.
+   *
+   * The glyph loader is now a base object.  Each driver used to
+   * re-implement it in one way or the other, which wasted code and
+   * energy.
+   *
+   */
 
 
   /* create a new glyph loader */
@@ -99,12 +99,12 @@
   }
 
 
-  /* reset the glyph loader, frees all allocated tables */
-  /* and starts from zero                               */
+  /* reset glyph loader, free all allocated tables, */
+  /* and start from zero                            */
   FT_BASE_DEF( void )
   FT_GlyphLoader_Reset( FT_GlyphLoader  loader )
   {
-    FT_Memory memory = loader->memory;
+    FT_Memory  memory = loader->memory;
 
 
     FT_FREE( loader->base.outline.points );
@@ -129,7 +129,7 @@
   {
     if ( loader )
     {
-      FT_Memory memory = loader->memory;
+      FT_Memory  memory = loader->memory;
 
 
       FT_GlyphLoader_Reset( loader );
@@ -361,46 +361,4 @@
   }
 
 
-  FT_BASE_DEF( FT_Error )
-  FT_GlyphLoader_CopyPoints( FT_GlyphLoader  target,
-                             FT_GlyphLoader  source )
-  {
-    FT_Error  error;
-    FT_UInt   num_points   = (FT_UInt)source->base.outline.n_points;
-    FT_UInt   num_contours = (FT_UInt)source->base.outline.n_contours;
-
-
-    error = FT_GlyphLoader_CheckPoints( target, num_points, num_contours );
-    if ( !error )
-    {
-      FT_Outline*  out = &target->base.outline;
-      FT_Outline*  in  = &source->base.outline;
-
-
-      FT_ARRAY_COPY( out->points, in->points,
-                     num_points );
-      FT_ARRAY_COPY( out->tags, in->tags,
-                     num_points );
-      FT_ARRAY_COPY( out->contours, in->contours,
-                     num_contours );
-
-      /* do we need to copy the extra points? */
-      if ( target->use_extra && source->use_extra )
-      {
-        FT_ARRAY_COPY( target->base.extra_points, source->base.extra_points,
-                       num_points );
-        FT_ARRAY_COPY( target->base.extra_points2, source->base.extra_points2,
-                       num_points );
-      }
-
-      out->n_points   = (short)num_points;
-      out->n_contours = (short)num_contours;
-
-      FT_GlyphLoader_Adjust_Points( target );
-    }
-
-    return error;
-  }
-
-
 /* END */
diff --git a/thirdparty/freetype/src/base/ftglyph.c b/thirdparty/freetype/src/base/ftglyph.c
index 6759aa25d0..e6b1327901 100644
--- a/thirdparty/freetype/src/base/ftglyph.c
+++ b/thirdparty/freetype/src/base/ftglyph.c
@@ -1,31 +1,31 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftglyph.c                                                              */
-/*                                                                         */
-/*    FreeType convenience functions to handle glyphs (body).              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*  This file contains the definition of several convenience functions   */
-  /*  that can be used by client applications to easily retrieve glyph     */
-  /*  bitmaps and outlines from a given face.                              */
-  /*                                                                       */
-  /*  These functions should be optional if you are writing a font server  */
-  /*  or text layout engine on top of FreeType.  However, they are pretty  */
-  /*  handy for many other simple uses of the library.                     */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftglyph.c
+ *
+ *   FreeType convenience functions to handle glyphs (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * This file contains the definition of several convenience functions
+   * that can be used by client applications to easily retrieve glyph
+   * bitmaps and outlines from a given face.
+   *
+   * These functions should be optional if you are writing a font server
+   * or text layout engine on top of FreeType.  However, they are pretty
+   * handy for many other simple uses of the library.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -36,16 +36,15 @@
 #include FT_BITMAP_H
 #include FT_INTERNAL_OBJECTS_H
 
-#include "basepic.h"
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_glyph
+#define FT_COMPONENT  glyph
 
 
   /*************************************************************************/
@@ -77,7 +76,7 @@
     /* do lazy copying whenever possible */
     if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
     {
-      glyph->bitmap = slot->bitmap;
+      glyph->bitmap          = slot->bitmap;
       slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
     }
     else
@@ -359,37 +358,28 @@
 
   /* documentation is in ftglyph.h */
 
-  FT_EXPORT_DEF( FT_Error )
-  FT_Get_Glyph( FT_GlyphSlot  slot,
-                FT_Glyph     *aglyph )
+  FT_EXPORT( FT_Error )
+  FT_New_Glyph( FT_Library       library,
+                FT_Glyph_Format  format,
+                FT_Glyph        *aglyph )
   {
-    FT_Library  library;
-    FT_Error    error;
-    FT_Glyph    glyph;
-
     const FT_Glyph_Class*  clazz = NULL;
 
-
-    if ( !slot )
-      return FT_THROW( Invalid_Slot_Handle );
-
-    library = slot->library;
-
-    if ( !aglyph )
+    if ( !library || !aglyph )
       return FT_THROW( Invalid_Argument );
 
     /* if it is a bitmap, that's easy :-) */
-    if ( slot->format == FT_GLYPH_FORMAT_BITMAP )
-      clazz = FT_BITMAP_GLYPH_CLASS_GET;
+    if ( format == FT_GLYPH_FORMAT_BITMAP )
+      clazz = &ft_bitmap_glyph_class;
 
     /* if it is an outline */
-    else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
-      clazz = FT_OUTLINE_GLYPH_CLASS_GET;
+    else if ( format == FT_GLYPH_FORMAT_OUTLINE )
+      clazz = &ft_outline_glyph_class;
 
     else
     {
       /* try to find a renderer that supports the glyph image format */
-      FT_Renderer  render = FT_Lookup_Renderer( library, slot->format, 0 );
+      FT_Renderer  render = FT_Lookup_Renderer( library, format, 0 );
 
 
       if ( render )
@@ -397,13 +387,31 @@
     }
 
     if ( !clazz )
-    {
-      error = FT_THROW( Invalid_Glyph_Format );
-      goto Exit;
-    }
+      return FT_THROW( Invalid_Glyph_Format );
+
+    /* create FT_Glyph object */
+    return ft_new_glyph( library, clazz, aglyph );
+  }
+
+
+  /* documentation is in ftglyph.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Get_Glyph( FT_GlyphSlot  slot,
+                FT_Glyph     *aglyph )
+  {
+    FT_Error  error;
+    FT_Glyph  glyph;
+
+
+    if ( !slot )
+      return FT_THROW( Invalid_Slot_Handle );
+
+    if ( !aglyph )
+      return FT_THROW( Invalid_Argument );
 
     /* create FT_Glyph object */
-    error = ft_new_glyph( library, clazz, &glyph );
+    error = FT_New_Glyph( slot->library, slot->format, &glyph );
     if ( error )
       goto Exit;
 
@@ -427,7 +435,7 @@
     glyph->advance.y = slot->advance.y * 1024;
 
     /* now import the image from the glyph slot */
-    error = clazz->glyph_init( glyph, slot );
+    error = glyph->clazz->glyph_init( glyph, slot );
 
   Exit2:
     /* if an error occurred, destroy the glyph */
@@ -505,8 +513,8 @@
     {
       acbox->xMin = FT_PIX_FLOOR( acbox->xMin );
       acbox->yMin = FT_PIX_FLOOR( acbox->yMin );
-      acbox->xMax = FT_PIX_CEIL( acbox->xMax );
-      acbox->yMax = FT_PIX_CEIL( acbox->yMax );
+      acbox->xMax = FT_PIX_CEIL_LONG( acbox->xMax );
+      acbox->yMax = FT_PIX_CEIL_LONG( acbox->yMax );
     }
 
     /* convert to integer pixels if needed */
@@ -536,7 +544,6 @@
     FT_BitmapGlyph            bitmap = NULL;
     const FT_Glyph_Class*     clazz;
 
-    /* FT_BITMAP_GLYPH_CLASS_GET dereferences `library' in PIC mode */
     FT_Library                library;
 
 
@@ -553,7 +560,7 @@
       goto Bad;
 
     /* when called with a bitmap glyph, do nothing and return successfully */
-    if ( clazz == FT_BITMAP_GLYPH_CLASS_GET )
+    if ( clazz == &ft_bitmap_glyph_class )
       goto Exit;
 
     if ( !clazz->glyph_prepare )
@@ -569,7 +576,7 @@
     dummy.format   = clazz->glyph_format;
 
     /* create result bitmap glyph */
-    error = ft_new_glyph( library, FT_BITMAP_GLYPH_CLASS_GET, &b );
+    error = ft_new_glyph( library, &ft_bitmap_glyph_class, &b );
     if ( error )
       goto Exit;
     bitmap = (FT_BitmapGlyph)b;
diff --git a/thirdparty/freetype/src/base/ftgxval.c b/thirdparty/freetype/src/base/ftgxval.c
index 19e2d6acb5..0677d26faa 100644
--- a/thirdparty/freetype/src/base/ftgxval.c
+++ b/thirdparty/freetype/src/base/ftgxval.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgxval.c                                                              */
-/*                                                                         */
-/*    FreeType API for validating TrueTypeGX/AAT tables (body).            */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Masatake YAMATO, Redhat K.K,                                           */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgxval.c
+ *
+ *   FreeType API for validating TrueTypeGX/AAT tables (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * Masatake YAMATO, Redhat K.K,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/fthash.c b/thirdparty/freetype/src/base/fthash.c
index 21bc8dd5b4..387e6d26db 100644
--- a/thirdparty/freetype/src/base/fthash.c
+++ b/thirdparty/freetype/src/base/fthash.c
@@ -1,10 +1,10 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fthash.c                                                               */
-/*                                                                         */
-/*    Hashing functions (body).                                            */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fthash.c
+ *
+ *   Hashing functions (body).
+ *
+ */
 
 /*
  * Copyright 2000 Computing Research Labs, New Mexico State University
@@ -30,13 +30,13 @@
  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50     */
-  /*                                                                       */
-  /*  taken from Mark Leisher's xmbdfed package                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50
+   *
+   * taken from Mark Leisher's xmbdfed package
+   *
+   */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftinit.c b/thirdparty/freetype/src/base/ftinit.c
index 1fa4721094..9d524effa9 100644
--- a/thirdparty/freetype/src/base/ftinit.c
+++ b/thirdparty/freetype/src/base/ftinit.c
@@ -1,40 +1,40 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftinit.c                                                               */
-/*                                                                         */
-/*    FreeType initialization layer (body).                                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /*  The purpose of this file is to implement the following two           */
-  /*  functions:                                                           */
-  /*                                                                       */
-  /*  FT_Add_Default_Modules():                                            */
-  /*     This function is used to add the set of default modules to a      */
-  /*     fresh new library object.  The set is taken from the header file  */
-  /*     `freetype/config/ftmodule.h'.  See the document `FreeType 2.0     */
-  /*     Build System' for more information.                               */
-  /*                                                                       */
-  /*  FT_Init_FreeType():                                                  */
-  /*     This function creates a system object for the current platform,   */
-  /*     builds a library out of it, then calls FT_Default_Drivers().      */
-  /*                                                                       */
-  /*  Note that even if FT_Init_FreeType() uses the implementation of the  */
-  /*  system object defined at build time, client applications are still   */
-  /*  able to provide their own `ftsystem.c'.                              */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftinit.c
+ *
+ *   FreeType initialization layer (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * The purpose of this file is to implement the following two
+   * functions:
+   *
+   * FT_Add_Default_Modules():
+   *   This function is used to add the set of default modules to a
+   *   fresh new library object.  The set is taken from the header file
+   *   `freetype/config/ftmodule.h'.  See the document `FreeType 2.0
+   *   Build System' for more information.
+   *
+   * FT_Init_FreeType():
+   *   This function creates a system object for the current platform,
+   *   builds a library out of it, then calls FT_Default_Drivers().
+   *
+   * Note that even if FT_Init_FreeType() uses the implementation of the
+   * system object defined at build time, client applications are still
+   * able to provide their own `ftsystem.c'.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -42,20 +42,16 @@
 #include FT_INTERNAL_OBJECTS_H
 #include FT_INTERNAL_DEBUG_H
 #include FT_MODULE_H
-#include "basepic.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_init
-
-
-#ifndef FT_CONFIG_OPTION_PIC
+#define FT_COMPONENT  init
 
 
 #undef  FT_USE_MODULE
@@ -78,120 +74,6 @@
   };
 
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-
-#ifdef __cplusplus
-#define FT_EXTERNC  extern "C"
-#else
-#define FT_EXTERNC  extern
-#endif
-
-  /* declare the module's class creation/destruction functions */
-#undef  FT_USE_MODULE
-#define FT_USE_MODULE( type, x )                            \
-  FT_EXTERNC FT_Error                                       \
-  FT_Create_Class_ ## x( FT_Library         library,        \
-                         FT_Module_Class*  *output_class ); \
-  FT_EXTERNC void                                           \
-  FT_Destroy_Class_ ## x( FT_Library        library,        \
-                          FT_Module_Class*  clazz );
-
-#include FT_CONFIG_MODULES_H
-
-  /* count all module classes */
-#undef  FT_USE_MODULE
-#define FT_USE_MODULE( type, x )  MODULE_CLASS_ ## x,
-
-  enum
-  {
-#include FT_CONFIG_MODULES_H
-    FT_NUM_MODULE_CLASSES
-  };
-
-  /* destroy all module classes */
-#undef  FT_USE_MODULE
-#define FT_USE_MODULE( type, x )                   \
-  if ( classes[i] )                                \
-  {                                                \
-    FT_Destroy_Class_ ## x( library, classes[i] ); \
-  }                                                \
-  i++;
-
-
-  FT_BASE_DEF( void )
-  ft_destroy_default_module_classes( FT_Library  library )
-  {
-    FT_Module_Class*  *classes;
-    FT_Memory          memory;
-    FT_UInt            i;
-    BasePIC*           pic_container = (BasePIC*)library->pic_container.base;
-
-
-    if ( !pic_container->default_module_classes )
-      return;
-
-    memory  = library->memory;
-    classes = pic_container->default_module_classes;
-    i       = 0;
-
-#include FT_CONFIG_MODULES_H
-
-    FT_FREE( classes );
-    pic_container->default_module_classes = NULL;
-  }
-
-
-  /* initialize all module classes and the pointer table */
-#undef  FT_USE_MODULE
-#define FT_USE_MODULE( type, x )                     \
-  error = FT_Create_Class_ ## x( library, &clazz );  \
-  if ( error )                                       \
-    goto Exit;                                       \
-  classes[i++] = clazz;
-
-
-  FT_BASE_DEF( FT_Error )
-  ft_create_default_module_classes( FT_Library  library )
-  {
-    FT_Error           error;
-    FT_Memory          memory;
-    FT_Module_Class*  *classes = NULL;
-    FT_Module_Class*   clazz;
-    FT_UInt            i;
-    BasePIC*           pic_container = (BasePIC*)library->pic_container.base;
-
-
-    memory = library->memory;
-
-    pic_container->default_module_classes = NULL;
-
-    if ( FT_ALLOC( classes, sizeof ( FT_Module_Class* ) *
-                              ( FT_NUM_MODULE_CLASSES + 1 ) ) )
-      return error;
-
-    /* initialize all pointers to 0, especially the last one */
-    for ( i = 0; i < FT_NUM_MODULE_CLASSES; i++ )
-      classes[i] = NULL;
-    classes[FT_NUM_MODULE_CLASSES] = NULL;
-
-    i = 0;
-
-#include FT_CONFIG_MODULES_H
-
-  Exit:
-    if ( error )
-      ft_destroy_default_module_classes( library );
-    else
-      pic_container->default_module_classes = classes;
-
-    return error;
-  }
-
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
   /* documentation is in ftmodapi.h */
 
   FT_EXPORT_DEF( void )
@@ -201,16 +83,10 @@
     const FT_Module_Class* const*  cur;
 
 
-    /* FT_DEFAULT_MODULES_GET dereferences `library' in PIC mode */
-#ifdef FT_CONFIG_OPTION_PIC
-    if ( !library )
-      return;
-#endif
-
     /* GCC 4.6 warns the type difference:
      *   FT_Module_Class** != const FT_Module_Class* const*
      */
-    cur = (const FT_Module_Class* const*)FT_DEFAULT_MODULES_GET;
+    cur = (const FT_Module_Class* const*)ft_default_modules;
 
     /* test for valid `library' delayed to FT_Add_Module() */
     while ( *cur )
diff --git a/thirdparty/freetype/src/base/ftlcdfil.c b/thirdparty/freetype/src/base/ftlcdfil.c
index 8d314df080..9fb49ba116 100644
--- a/thirdparty/freetype/src/base/ftlcdfil.c
+++ b/thirdparty/freetype/src/base/ftlcdfil.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftlcdfil.c                                                             */
-/*                                                                         */
-/*    FreeType API for color filtering of subpixel bitmap glyphs (body).   */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftlcdfil.c
+ *
+ *   FreeType API for color filtering of subpixel bitmap glyphs (body).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -34,9 +34,9 @@
 
   /* add padding according to filter weights */
   FT_BASE_DEF (void)
-  ft_lcd_padding( FT_Pos*       Min,
-                  FT_Pos*       Max,
-                  FT_GlyphSlot  slot )
+  ft_lcd_padding( FT_BBox*        cbox,
+                  FT_GlyphSlot    slot,
+                  FT_Render_Mode  mode )
   {
     FT_Byte*                 lcd_weights;
     FT_Bitmap_LcdFilterFunc  lcd_filter_func;
@@ -56,10 +56,20 @@
 
     if ( lcd_filter_func == ft_lcd_filter_fir )
     {
-      *Min -= lcd_weights[0] ? 43 :
-              lcd_weights[1] ? 22 : 0;
-      *Max += lcd_weights[4] ? 43 :
-              lcd_weights[3] ? 22 : 0;
+      if ( mode == FT_RENDER_MODE_LCD )
+      {
+        cbox->xMin -= lcd_weights[0] ? 43 :
+                      lcd_weights[1] ? 22 : 0;
+        cbox->xMax += lcd_weights[4] ? 43 :
+                      lcd_weights[3] ? 22 : 0;
+      }
+      else if ( mode == FT_RENDER_MODE_LCD_V )
+      {
+        cbox->yMin -= lcd_weights[0] ? 43 :
+                      lcd_weights[1] ? 22 : 0;
+        cbox->yMax += lcd_weights[4] ? 43 :
+                      lcd_weights[3] ? 22 : 0;
+      }
     }
   }
 
@@ -275,6 +285,8 @@
 #endif /* USE_LEGACY */
 
 
+  /* documentation in ftlcdfil.h */
+
   FT_EXPORT_DEF( FT_Error )
   FT_Library_SetLcdFilterWeights( FT_Library      library,
                                   unsigned char  *weights )
@@ -292,6 +304,8 @@
   }
 
 
+  /* documentation in ftlcdfil.h */
+
   FT_EXPORT_DEF( FT_Error )
   FT_Library_SetLcdFilter( FT_Library    library,
                            FT_LcdFilter  filter )
@@ -341,18 +355,41 @@
     return FT_Err_Ok;
   }
 
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Library_SetLcdGeometry( FT_Library  library,
+                             FT_Vector*  sub )
+  {
+    FT_UNUSED( library );
+    FT_UNUSED( sub );
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
 #else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
 
-  /* add padding according to accommodate outline shifts */
+  /* add padding to accommodate outline shifts */
   FT_BASE_DEF (void)
-  ft_lcd_padding( FT_Pos*       Min,
-                  FT_Pos*       Max,
-                  FT_GlyphSlot  slot )
+  ft_lcd_padding( FT_BBox*        cbox,
+                  FT_GlyphSlot    slot,
+                  FT_Render_Mode  mode )
   {
-    FT_UNUSED( slot );
+    FT_Vector*  sub = slot->library->lcd_geometry;
 
-    *Min -= 21;
-    *Max += 21;
+    if ( mode == FT_RENDER_MODE_LCD )
+    {
+      cbox->xMin -= FT_MAX( FT_MAX( sub[0].x, sub[1].x ), sub[2].x );
+      cbox->xMax -= FT_MIN( FT_MIN( sub[0].x, sub[1].x ), sub[2].x );
+      cbox->yMin -= FT_MAX( FT_MAX( sub[0].y, sub[1].y ), sub[2].y );
+      cbox->yMax -= FT_MIN( FT_MIN( sub[0].y, sub[1].y ), sub[2].y );
+    }
+    else if ( mode == FT_RENDER_MODE_LCD_V )
+    {
+      cbox->xMin -= FT_MAX( FT_MAX( sub[0].y, sub[1].y ), sub[2].y );
+      cbox->xMax -= FT_MIN( FT_MIN( sub[0].y, sub[1].y ), sub[2].y );
+      cbox->yMin += FT_MIN( FT_MIN( sub[0].x, sub[1].x ), sub[2].x );
+      cbox->yMax += FT_MAX( FT_MAX( sub[0].x, sub[1].x ), sub[2].x );
+    }
   }
 
 
@@ -377,6 +414,24 @@
     return FT_THROW( Unimplemented_Feature );
   }
 
+
+  /* documentation in ftlcdfil.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Library_SetLcdGeometry( FT_Library  library,
+                             FT_Vector   sub[3] )
+  {
+    if ( !library )
+      return FT_THROW( Invalid_Library_Handle );
+
+    if ( !sub )
+      return FT_THROW( Invalid_Argument );
+
+    ft_memcpy( library->lcd_geometry, sub, 3 * sizeof( FT_Vector ) );
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
 #endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
 
 
diff --git a/thirdparty/freetype/src/base/ftmac.c b/thirdparty/freetype/src/base/ftmac.c
index fd4c0cc274..5f23ceea9f 100644
--- a/thirdparty/freetype/src/base/ftmac.c
+++ b/thirdparty/freetype/src/base/ftmac.c
@@ -1,23 +1,23 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmac.c                                                                */
-/*                                                                         */
-/*    Mac FOND support.  Written by just@letterror.com.                    */
-/*  Heavily modified by mpsuzuki, George Williams, and Sean McBride.       */
-/*                                                                         */
-/*  This file is for Mac OS X only; see builds/mac/ftoldmac.c for          */
-/*  classic platforms built by MPW.                                        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.     */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftmac.c
+ *
+ *   Mac FOND support.  Written by just@letterror.com.
+ * Heavily modified by mpsuzuki, George Williams, and Sean McBride.
+ *
+ * This file is for Mac OS X only; see builds/mac/ftoldmac.c for
+ * classic platforms built by MPW.
+ *
+ * Copyright (C) 1996-2019 by
+ * Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /*
@@ -954,17 +954,17 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This is the Mac-specific implementation of FT_New_Face.  In        */
-  /*    addition to the standard FT_New_Face() functionality, it also      */
-  /*    accepts pathnames to Mac suitcase files.  For further              */
-  /*    documentation see the original FT_New_Face() in freetype.h.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   FT_New_Face
+   *
+   * @Description:
+   *   This is the Mac-specific implementation of FT_New_Face.  In
+   *   addition to the standard FT_New_Face() functionality, it also
+   *   accepts pathnames to Mac suitcase files.  For further
+   *   documentation see the original FT_New_Face() in freetype.h.
+   */
   FT_EXPORT_DEF( FT_Error )
   FT_New_Face( FT_Library   library,
                const char*  pathname,
@@ -995,17 +995,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face_From_FSRef                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FT_New_Face_From_FSRef is identical to FT_New_Face except it       */
-  /*    accepts an FSRef instead of a path.                                */
-  /*                                                                       */
-  /* This function is deprecated because Carbon data types (FSRef)         */
-  /* are not cross-platform, and thus not suitable for the FreeType API.   */
+  /**************************************************************************
+   *
+   * @Function:
+   *   FT_New_Face_From_FSRef
+   *
+   * @Description:
+   *   FT_New_Face_From_FSRef is identical to FT_New_Face except it
+   *   accepts an FSRef instead of a path.
+   *
+   * This function is deprecated because Carbon data types (FSRef)
+   * are not cross-platform, and thus not suitable for the FreeType API.
+   */
   FT_EXPORT_DEF( FT_Error )
   FT_New_Face_From_FSRef( FT_Library    library,
                           const FSRef*  ref,
@@ -1040,16 +1041,17 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_New_Face_From_FSSpec                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    FT_New_Face_From_FSSpec is identical to FT_New_Face except it      */
-  /*    accepts an FSSpec instead of a path.                               */
-  /*                                                                       */
-  /* This function is deprecated because FSSpec is deprecated in Mac OS X  */
+  /**************************************************************************
+   *
+   * @Function:
+   *   FT_New_Face_From_FSSpec
+   *
+   * @Description:
+   *   FT_New_Face_From_FSSpec is identical to FT_New_Face except it
+   *   accepts an FSSpec instead of a path.
+   *
+   * This function is deprecated because FSSpec is deprecated in Mac OS X
+   */
   FT_EXPORT_DEF( FT_Error )
   FT_New_Face_From_FSSpec( FT_Library     library,
                            const FSSpec*  spec,
diff --git a/thirdparty/freetype/src/base/ftmm.c b/thirdparty/freetype/src/base/ftmm.c
index 800441bcac..ba9e67f008 100644
--- a/thirdparty/freetype/src/base/ftmm.c
+++ b/thirdparty/freetype/src/base/ftmm.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmm.c                                                                 */
-/*                                                                         */
-/*    Multiple Master font support (body).                                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftmm.c
+ *
+ *   Multiple Master font support (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -25,14 +25,14 @@
 #include FT_SERVICE_METRICS_VARIATIONS_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_mm
+#define FT_COMPONENT  mm
 
 
   static FT_Error
@@ -202,6 +202,67 @@
   /* documentation is in ftmm.h */
 
   FT_EXPORT_DEF( FT_Error )
+  FT_Set_MM_WeightVector( FT_Face    face,
+                          FT_UInt    len,
+                          FT_Fixed*  weightvector )
+  {
+    FT_Error                 error;
+    FT_Service_MultiMasters  service;
+
+
+    /* check of `face' delayed to `ft_face_get_mm_service' */
+
+    if ( len && !weightvector )
+      return FT_THROW( Invalid_Argument );
+
+    error = ft_face_get_mm_service( face, &service );
+    if ( !error )
+    {
+      error = FT_ERR( Invalid_Argument );
+      if ( service->set_mm_weightvector )
+        error = service->set_mm_weightvector( face, len, weightvector );
+    }
+
+    /* enforce recomputation of auto-hinting data */
+    if ( !error && face->autohint.finalizer )
+    {
+      face->autohint.finalizer( face->autohint.data );
+      face->autohint.data = NULL;
+    }
+
+    return error;
+  }
+
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Get_MM_WeightVector( FT_Face    face,
+                          FT_UInt*   len,
+                          FT_Fixed*  weightvector )
+  {
+    FT_Error                 error;
+    FT_Service_MultiMasters  service;
+
+
+    /* check of `face' delayed to `ft_face_get_mm_service' */
+
+    if ( len && !weightvector )
+      return FT_THROW( Invalid_Argument );
+
+    error = ft_face_get_mm_service( face, &service );
+    if ( !error )
+    {
+      error = FT_ERR( Invalid_Argument );
+      if ( service->get_mm_weightvector )
+        error = service->get_mm_weightvector( face, len, weightvector );
+    }
+
+    return error;
+  }
+
+
+  /* documentation is in ftmm.h */
+
+  FT_EXPORT_DEF( FT_Error )
   FT_Set_Var_Design_Coordinates( FT_Face    face,
                                  FT_UInt    num_coords,
                                  FT_Fixed*  coords )
diff --git a/thirdparty/freetype/src/base/ftobjs.c b/thirdparty/freetype/src/base/ftobjs.c
index 8d07e35ae3..3f8619d3b3 100644
--- a/thirdparty/freetype/src/base/ftobjs.c
+++ b/thirdparty/freetype/src/base/ftobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftobjs.c                                                               */
-/*                                                                         */
-/*    The FreeType private base classes (body).                            */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftobjs.c
+ *
+ *   The FreeType private base classes (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -79,6 +79,18 @@
 #pragma warning( pop )
 #endif
 
+  static const char* const  pixel_modes[] =
+  {
+    "none",
+    "monochrome bitmap",
+    "gray 8-bit bitmap",
+    "gray 2-bit bitmap",
+    "gray 4-bit bitmap",
+    "LCD 8-bit bitmap",
+    "vertical LCD 8-bit bitmap",
+    "BGRA 32-bit color image bitmap"
+  };
+
 #endif /* FT_DEBUG_LEVEL_TRACE */
 
 
@@ -259,14 +271,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_objs
+#define FT_COMPONENT  objs
 
 
   /*************************************************************************/
@@ -330,7 +342,9 @@
   }
 
 
-  FT_BASE_DEF( void )
+  /* overflow-resistant presetting of bitmap position and dimensions; */
+  /* also check whether the size is too large for rendering           */
+  FT_BASE_DEF( FT_Bool )
   ft_glyphslot_preset_bitmap( FT_GlyphSlot      slot,
                               FT_Render_Mode    mode,
                               const FT_Vector*  origin )
@@ -340,15 +354,15 @@
 
     FT_Pixel_Mode  pixel_mode;
 
-    FT_BBox  cbox;
+    FT_BBox  cbox, pbox;
     FT_Pos   x_shift = 0;
     FT_Pos   y_shift = 0;
     FT_Pos   x_left, y_top;
     FT_Pos   width, height, pitch;
 
 
-    if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
-      return;
+    if ( slot->format != FT_GLYPH_FORMAT_OUTLINE )
+      return 1;
 
     if ( origin )
     {
@@ -360,76 +374,89 @@
     /* taking into account the origin shift      */
     FT_Outline_Get_CBox( outline, &cbox );
 
-    cbox.xMin += x_shift;
-    cbox.yMin += y_shift;
-    cbox.xMax += x_shift;
-    cbox.yMax += y_shift;
+    /* rough estimate of pixel box */
+    pbox.xMin = ( cbox.xMin >> 6 ) + ( x_shift >> 6 );
+    pbox.yMin = ( cbox.yMin >> 6 ) + ( y_shift >> 6 );
+    pbox.xMax = ( cbox.xMax >> 6 ) + ( x_shift >> 6 );
+    pbox.yMax = ( cbox.yMax >> 6 ) + ( y_shift >> 6 );
+
+    /* tiny remainder box */
+    cbox.xMin = ( cbox.xMin & 63 ) + ( x_shift & 63 );
+    cbox.yMin = ( cbox.yMin & 63 ) + ( y_shift & 63 );
+    cbox.xMax = ( cbox.xMax & 63 ) + ( x_shift & 63 );
+    cbox.yMax = ( cbox.yMax & 63 ) + ( y_shift & 63 );
 
     switch ( mode )
     {
     case FT_RENDER_MODE_MONO:
       pixel_mode = FT_PIXEL_MODE_MONO;
 #if 1
-      /* undocumented but confirmed: bbox values get rounded    */
-      /* unless the rounded box can collapse for a narrow glyph */
-      if ( cbox.xMax - cbox.xMin < 64 )
-      {
-        cbox.xMin = FT_PIX_FLOOR( cbox.xMin );
-        cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax );
-      }
-      else
-      {
-        cbox.xMin = FT_PIX_ROUND_LONG( cbox.xMin );
-        cbox.xMax = FT_PIX_ROUND_LONG( cbox.xMax );
-      }
+      /* x */
+
+      /* undocumented but confirmed: bbox values get rounded;    */
+      /* we do asymmetric rounding so that the center of a pixel */
+      /* gets always included                                    */
+
+      pbox.xMin += ( cbox.xMin + 31 ) >> 6;
+      pbox.xMax += ( cbox.xMax + 32 ) >> 6;
 
-      if ( cbox.yMax - cbox.yMin < 64 )
+      /* if the bbox collapsed, we add a pixel based on the total */
+      /* rounding remainder to cover most of the original cbox    */
+
+      if ( pbox.xMin == pbox.xMax )
       {
-        cbox.yMin = FT_PIX_FLOOR( cbox.yMin );
-        cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax );
+        if ( ( ( cbox.xMin + 31 ) & 63 ) - 31 +
+             ( ( cbox.xMax + 32 ) & 63 ) - 32 < 0 )
+          pbox.xMin -= 1;
+        else
+          pbox.xMax += 1;
       }
-      else
+
+      /* y */
+
+      pbox.yMin += ( cbox.yMin + 31 ) >> 6;
+      pbox.yMax += ( cbox.yMax + 32 ) >> 6;
+
+      if ( pbox.yMin == pbox.yMax )
       {
-        cbox.yMin = FT_PIX_ROUND_LONG( cbox.yMin );
-        cbox.yMax = FT_PIX_ROUND_LONG( cbox.yMax );
+        if ( ( ( cbox.yMin + 31 ) & 63 ) - 31 +
+             ( ( cbox.yMax + 32 ) & 63 ) - 32 < 0 )
+          pbox.yMin -= 1;
+        else
+          pbox.yMax += 1;
       }
+
+      break;
 #else
-      cbox.xMin = FT_PIX_FLOOR( cbox.xMin );
-      cbox.yMin = FT_PIX_FLOOR( cbox.yMin );
-      cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax );
-      cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax );
+      goto Adjust;
 #endif
-      break;
 
     case FT_RENDER_MODE_LCD:
       pixel_mode = FT_PIXEL_MODE_LCD;
-      ft_lcd_padding( &cbox.xMin, &cbox.xMax, slot );
-      goto Round;
+      ft_lcd_padding( &cbox, slot, mode );
+      goto Adjust;
 
     case FT_RENDER_MODE_LCD_V:
       pixel_mode = FT_PIXEL_MODE_LCD_V;
-      ft_lcd_padding( &cbox.yMin, &cbox.yMax, slot );
-      goto Round;
+      ft_lcd_padding( &cbox, slot, mode );
+      goto Adjust;
 
     case FT_RENDER_MODE_NORMAL:
     case FT_RENDER_MODE_LIGHT:
     default:
       pixel_mode = FT_PIXEL_MODE_GRAY;
-    Round:
-      cbox.xMin = FT_PIX_FLOOR( cbox.xMin );
-      cbox.yMin = FT_PIX_FLOOR( cbox.yMin );
-      cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax );
-      cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax );
+    Adjust:
+      pbox.xMin += cbox.xMin >> 6;
+      pbox.yMin += cbox.yMin >> 6;
+      pbox.xMax += ( cbox.xMax + 63 ) >> 6;
+      pbox.yMax += ( cbox.yMax + 63 ) >> 6;
     }
 
-    x_shift = SUB_LONG( x_shift, cbox.xMin );
-    y_shift = SUB_LONG( y_shift, cbox.yMin );
+    x_left = pbox.xMin;
+    y_top  = pbox.yMax;
 
-    x_left = cbox.xMin >> 6;
-    y_top  = cbox.yMax >> 6;
-
-    width  = ( (FT_ULong)cbox.xMax - (FT_ULong)cbox.xMin ) >> 6;
-    height = ( (FT_ULong)cbox.yMax - (FT_ULong)cbox.yMin ) >> 6;
+    width  = pbox.xMax - pbox.xMin;
+    height = pbox.yMax - pbox.yMin;
 
     switch ( pixel_mode )
     {
@@ -459,6 +486,16 @@
     bitmap->width      = (unsigned int)width;
     bitmap->rows       = (unsigned int)height;
     bitmap->pitch      = pitch;
+
+    if ( pbox.xMin < -0x8000 || pbox.xMax > 0x7FFF ||
+         pbox.yMin < -0x8000 || pbox.yMax > 0x7FFF )
+    {
+      FT_TRACE3(( "ft_glyphslot_preset_bitmap: [%ld %ld %ld %ld]\n",
+                  pbox.xMin, pbox.yMin, pbox.xMax, pbox.yMax ));
+      return 1;
+    }
+
+    return 0;
   }
 
 
@@ -807,7 +844,7 @@
      * - Do only auto-hinting if we have
      *
      *   - a hinter module,
-     *   - a scalable font format dealing with outlines,
+     *   - a scalable font,
      *   - not a tricky font, and
      *   - no transforms except simple slants and/or rotations by
      *     integer multiples of 90 degrees.
@@ -825,8 +862,7 @@
     if ( hinter                                           &&
          !( load_flags & FT_LOAD_NO_HINTING )             &&
          !( load_flags & FT_LOAD_NO_AUTOHINT )            &&
-         FT_DRIVER_IS_SCALABLE( driver )                  &&
-         FT_DRIVER_USES_OUTLINES( driver )                &&
+         FT_IS_SCALABLE( face )                           &&
          !FT_IS_TRICKY( face )                            &&
          ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM )    ||
            ( face->internal->transform_matrix.yx == 0 &&
@@ -846,7 +882,7 @@
         /* only the new Adobe engine (for both CFF and Type 1) is `light'; */
         /* we use `strstr' to catch both `Type 1' and `CID Type 1'         */
         is_light_type1 =
-          ft_strstr( FT_Get_Font_Format( face ), "Type 1" ) != NULL   &&
+          ft_strstr( FT_Get_Font_Format( face ), "Type 1" ) != NULL &&
           ((PS_Driver)driver)->hinting_engine == FT_HINTING_ADOBE;
 
         /* the check for `num_locations' assures that we actually    */
@@ -926,8 +962,9 @@
 
 #ifdef GRID_FIT_METRICS
         if ( !( load_flags & FT_LOAD_NO_HINTING ) )
-          ft_glyphslot_grid_fit_metrics( slot,
-              FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) );
+          ft_glyphslot_grid_fit_metrics(
+            slot,
+            FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) );
 #endif
       }
     }
@@ -995,6 +1032,9 @@
       }
     }
 
+    slot->glyph_index          = glyph_index;
+    slot->internal->load_flags = load_flags;
+
     /* do we need to render the image or preset the bitmap now? */
     if ( !error                                    &&
          ( load_flags & FT_LOAD_NO_SCALE ) == 0    &&
@@ -1014,17 +1054,21 @@
         ft_glyphslot_preset_bitmap( slot, mode, NULL );
     }
 
-    FT_TRACE5(( "FT_Load_Glyph: index %d, flags %x\n",
-                glyph_index, load_flags               ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+    FT_TRACE5(( "FT_Load_Glyph: index %d, flags 0x%x\n",
+                glyph_index, load_flags ));
     FT_TRACE5(( "  x advance: %f\n", slot->advance.x / 64.0 ));
     FT_TRACE5(( "  y advance: %f\n", slot->advance.y / 64.0 ));
     FT_TRACE5(( "  linear x advance: %f\n",
                 slot->linearHoriAdvance / 65536.0 ));
     FT_TRACE5(( "  linear y advance: %f\n",
                 slot->linearVertAdvance / 65536.0 ));
-    FT_TRACE5(( "  bitmap %dx%d, mode %d\n",
-                slot->bitmap.width, slot->bitmap.rows,
-                slot->bitmap.pixel_mode               ));
+    FT_TRACE5(( "  bitmap %dx%d, %s (mode %d)\n",
+                slot->bitmap.width,
+                slot->bitmap.rows,
+                pixel_modes[slot->bitmap.pixel_mode],
+                slot->bitmap.pixel_mode ));
+#endif
 
   Exit:
     return error;
@@ -1162,20 +1206,20 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    find_unicode_charmap                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function finds a Unicode charmap, if there is one.            */
-  /*    And if there is more than one, it tries to favour the more         */
-  /*    extensive one, i.e., one that supports UCS-4 against those which   */
-  /*    are limited to the BMP (said UCS-2 encoding.)                      */
-  /*                                                                       */
-  /*    This function is called from open_face() (just below), and also    */
-  /*    from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ).                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   find_unicode_charmap
+   *
+   * @Description:
+   *   This function finds a Unicode charmap, if there is one.
+   *   And if there is more than one, it tries to favour the more
+   *   extensive one, i.e., one that supports UCS-4 against those which
+   *   are limited to the BMP (said UCS-2 encoding.)
+   *
+   *   This function is called from open_face() (just below), and also
+   *   from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ).
+   */
   static FT_Error
   find_unicode_charmap( FT_Face  face )
   {
@@ -1192,26 +1236,26 @@
       return FT_THROW( Invalid_CharMap_Handle );
 
     /*
-     *  The original TrueType specification(s) only specified charmap
-     *  formats that are capable of mapping 8 or 16 bit character codes to
-     *  glyph indices.
+     * The original TrueType specification(s) only specified charmap
+     * formats that are capable of mapping 8 or 16 bit character codes to
+     * glyph indices.
      *
-     *  However, recent updates to the Apple and OpenType specifications
-     *  introduced new formats that are capable of mapping 32-bit character
-     *  codes as well.  And these are already used on some fonts, mainly to
-     *  map non-BMP Asian ideographs as defined in Unicode.
+     * However, recent updates to the Apple and OpenType specifications
+     * introduced new formats that are capable of mapping 32-bit character
+     * codes as well.  And these are already used on some fonts, mainly to
+     * map non-BMP Asian ideographs as defined in Unicode.
      *
-     *  For compatibility purposes, these fonts generally come with
-     *  *several* Unicode charmaps:
+     * For compatibility purposes, these fonts generally come with
+     * *several* Unicode charmaps:
      *
-     *   - One of them in the "old" 16-bit format, that cannot access
-     *     all glyphs in the font.
+     * - One of them in the "old" 16-bit format, that cannot access
+     *   all glyphs in the font.
      *
-     *   - Another one in the "new" 32-bit format, that can access all
-     *     the glyphs.
+     * - Another one in the "new" 32-bit format, that can access all
+     *   the glyphs.
      *
-     *  This function has been written to always favor a 32-bit charmap
-     *  when found.  Otherwise, a 16-bit one is returned when found.
+     * This function has been written to always favor a 32-bit charmap
+     * when found.  Otherwise, a 16-bit one is returned when found.
      */
 
     /* Since the `interesting' table, with IDs (3,10), is normally the */
@@ -1255,15 +1299,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    find_variant_selector_charmap                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function finds the variant selector charmap, if there is one. */
-  /*    There can only be one (platform=0, specific=5, format=14).         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   find_variant_selector_charmap
+   *
+   * @Description:
+   *   This function finds the variant selector charmap, if there is one.
+   *   There can only be one (platform=0, specific=5, format=14).
+   */
   static FT_CharMap
   find_variant_selector_charmap( FT_Face  face )
   {
@@ -1294,14 +1338,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    open_face                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function does some work for FT_Open_Face().                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   open_face
+   *
+   * @Description:
+   *   This function does some work for FT_Open_Face().
+   */
   static FT_Error
   open_face( FT_Driver      driver,
              FT_Stream      *astream,
@@ -2176,13 +2220,13 @@
   {
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_raccess
+#define FT_COMPONENT  raccess
 
     FT_Memory  memory = library->memory;
     FT_Error   error  = FT_ERR( Unknown_File_Format );
     FT_UInt    i;
 
-    char *     file_names[FT_RACCESS_N_RULES];
+    char*      file_names[FT_RACCESS_N_RULES];
     FT_Long    offsets[FT_RACCESS_N_RULES];
     FT_Error   errors[FT_RACCESS_N_RULES];
     FT_Bool    is_darwin_vfs, vfs_rfork_has_no_font = FALSE; /* not tested */
@@ -2254,7 +2298,7 @@
     return error;
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_objs
+#define FT_COMPONENT  objs
 
   }
 
@@ -2282,7 +2326,7 @@
     {
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_raccess
+#define FT_COMPONENT  raccess
 
 #ifdef FT_DEBUG_LEVEL_TRACE
       FT_TRACE3(( "Try as dfont: " ));
@@ -2295,7 +2339,7 @@
       FT_TRACE3(( "%s\n", error ? "failed" : "successful" ));
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_objs
+#define FT_COMPONENT  objs
 
     }
 
@@ -2693,8 +2737,8 @@
 
     /* close the attached stream */
     FT_Stream_Free( stream,
-                    (FT_Bool)( parameters->stream &&
-                               ( parameters->flags & FT_OPEN_STREAM ) ) );
+                    FT_BOOL( parameters->stream                     &&
+                             ( parameters->flags & FT_OPEN_STREAM ) ) );
 
   Exit:
     return error;
@@ -3464,7 +3508,8 @@
     if ( !face )
       return FT_THROW( Invalid_Face_Handle );
 
-    if ( encoding == FT_ENCODING_NONE )
+    /* FT_ENCODING_NONE is a valid encoding for BDF, PCF, and Windows FNT */
+    if ( encoding == FT_ENCODING_NONE && !face->num_charmaps )
       return FT_THROW( Invalid_Argument );
 
     /* FT_ENCODING_UNICODE is special.  We try to find the `best' Unicode */
@@ -3485,7 +3530,7 @@
       if ( cur[0]->encoding == encoding )
       {
         face->charmap = cur[0];
-        return 0;
+        return FT_Err_Ok;
       }
     }
 
@@ -3510,14 +3555,12 @@
     if ( !cur || !charmap )
       return FT_THROW( Invalid_CharMap_Handle );
 
-    if ( FT_Get_CMap_Format( charmap ) == 14 )
-      return FT_THROW( Invalid_Argument );
-
     limit = cur + face->num_charmaps;
 
     for ( ; cur < limit; cur++ )
     {
-      if ( cur[0] == charmap )
+      if ( cur[0] == charmap                    &&
+           FT_Get_CMap_Format ( charmap ) != 14 )
       {
         face->charmap = cur[0];
         return FT_Err_Ok;
@@ -4487,16 +4530,89 @@
                             FT_Render_Mode  render_mode )
   {
     FT_Error     error = FT_Err_Ok;
+    FT_Face      face  = slot->face;
     FT_Renderer  renderer;
 
 
-    /* if it is already a bitmap, no need to do anything */
     switch ( slot->format )
     {
     case FT_GLYPH_FORMAT_BITMAP:   /* already a bitmap, don't do anything */
       break;
 
     default:
+      if ( slot->internal->load_flags & FT_LOAD_COLOR )
+      {
+        FT_LayerIterator  iterator;
+
+        FT_UInt  base_glyph = slot->glyph_index;
+
+        FT_Bool  have_layers;
+        FT_UInt  glyph_index;
+        FT_UInt  color_index;
+
+
+        /* check whether we have colored glyph layers */
+        iterator.p  = NULL;
+        have_layers = FT_Get_Color_Glyph_Layer( face,
+                                                base_glyph,
+                                                &glyph_index,
+                                                &color_index,
+                                                &iterator );
+        if ( have_layers )
+        {
+          error = FT_New_GlyphSlot( face, NULL );
+          if ( !error )
+          {
+            TT_Face       ttface = (TT_Face)face;
+            SFNT_Service  sfnt   = (SFNT_Service)ttface->sfnt;
+
+
+            do
+            {
+              FT_Int32  load_flags = slot->internal->load_flags;
+
+
+              /* disable the `FT_LOAD_COLOR' flag to avoid recursion */
+              /* right here in this function                         */
+              load_flags &= ~FT_LOAD_COLOR;
+
+              /* render into the new `face->glyph' glyph slot */
+              load_flags |= FT_LOAD_RENDER;
+
+              error = FT_Load_Glyph( face, glyph_index, load_flags );
+              if ( error )
+                break;
+
+              /* blend new `face->glyph' into old `slot'; */
+              /* at the first call, `slot' is still empty */
+              error = sfnt->colr_blend( ttface,
+                                        color_index,
+                                        slot,
+                                        face->glyph );
+              if ( error )
+                break;
+
+            } while ( FT_Get_Color_Glyph_Layer( face,
+                                                base_glyph,
+                                                &glyph_index,
+                                                &color_index,
+                                                &iterator ) );
+
+            if ( !error )
+              slot->format = FT_GLYPH_FORMAT_BITMAP;
+
+            /* this call also restores `slot' as the glyph slot */
+            FT_Done_GlyphSlot( face->glyph );
+          }
+
+          if ( !error )
+            return error;
+
+          /* Failed to do the colored layer.  Draw outline instead. */
+          slot->format = FT_GLYPH_FORMAT_OUTLINE;
+        }
+      }
+
       {
         FT_ListNode  node = NULL;
 
@@ -4532,7 +4648,7 @@
 #ifdef FT_DEBUG_LEVEL_TRACE
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_bitmap
+#define FT_COMPONENT  checksum
 
     /*
      * Computing the MD5 checksum is expensive, unnecessarily distorting a
@@ -4542,9 +4658,9 @@
      */
 
     /* we use FT_TRACE3 in this block */
-    if ( !error                             &&
-         ft_trace_levels[trace_bitmap] >= 3 &&
-         slot->bitmap.buffer                )
+    if ( !error                               &&
+         ft_trace_levels[trace_checksum] >= 3 &&
+         slot->bitmap.buffer                  )
     {
       FT_Bitmap  bitmap;
       FT_Error   err;
@@ -4565,8 +4681,11 @@
         int            pitch = bitmap.pitch;
 
 
-        FT_TRACE3(( "FT_Render_Glyph: bitmap %dx%d, mode %d\n",
-                    rows, pitch, slot->bitmap.pixel_mode ));
+        FT_TRACE3(( "FT_Render_Glyph: bitmap %dx%d, %s (mode %d)\n",
+                    pitch,
+                    rows,
+                    pixel_modes[slot->bitmap.pixel_mode],
+                    slot->bitmap.pixel_mode ));
 
         for ( i = 0; i < rows; i++ )
           for ( j = 0; j < pitch; j++ )
@@ -4594,49 +4713,56 @@
      */
 
     /* we use FT_TRACE7 in this block */
-    if ( !error                             &&
-         ft_trace_levels[trace_bitmap] >= 7 &&
-         slot->bitmap.rows  < 128U          &&
-         slot->bitmap.width < 128U          &&
-         slot->bitmap.buffer                )
+    if ( !error                               &&
+         ft_trace_levels[trace_checksum] >= 7 )
     {
-      int  rows  = (int)slot->bitmap.rows;
-      int  width = (int)slot->bitmap.width;
-      int  pitch =      slot->bitmap.pitch;
-      int  i, j, m;
-      unsigned char*  topleft = slot->bitmap.buffer;
+      if ( slot->bitmap.rows  < 128U &&
+           slot->bitmap.width < 128U &&
+           slot->bitmap.buffer       )
+      {
+        int  rows  = (int)slot->bitmap.rows;
+        int  width = (int)slot->bitmap.width;
+        int  pitch =      slot->bitmap.pitch;
+        int  i, j, m;
 
-      if ( pitch < 0 )
-        topleft -= pitch * ( rows - 1 );
+        unsigned char*  topleft = slot->bitmap.buffer;
 
-      FT_TRACE7(( "Netpbm image: start\n" ));
-      switch ( slot->bitmap.pixel_mode )
-      {
-      case FT_PIXEL_MODE_MONO:
-        FT_TRACE7(( "P1 %d %d\n", width, rows ));
-        for ( i = 0; i < rows; i++ )
-        {
-          for ( j = 0; j < width; )
-            for ( m = 128; m > 0 && j < width; m >>= 1, j++ )
-              FT_TRACE7(( " %d", ( topleft[i * pitch + j / 8] & m ) != 0 ));
-          FT_TRACE7(( "\n" ));
-        }
-        break;
 
-      default:
-        FT_TRACE7(( "P2 %d %d 255\n", width, rows ));
-        for ( i = 0; i < rows; i++ )
+        if ( pitch < 0 )
+          topleft -= pitch * ( rows - 1 );
+
+        FT_TRACE7(( "Netpbm image: start\n" ));
+        switch ( slot->bitmap.pixel_mode )
         {
-          for ( j = 0; j < width; j += 1 )
-            FT_TRACE7(( " %3u", topleft[i * pitch + j] ));
-          FT_TRACE7(( "\n" ));
+        case FT_PIXEL_MODE_MONO:
+          FT_TRACE7(( "P1 %d %d\n", width, rows ));
+          for ( i = 0; i < rows; i++ )
+          {
+            for ( j = 0; j < width; )
+              for ( m = 128; m > 0 && j < width; m >>= 1, j++ )
+                FT_TRACE7(( " %d",
+                            ( topleft[i * pitch + j / 8] & m ) != 0 ));
+            FT_TRACE7(( "\n" ));
+          }
+          break;
+
+        default:
+          FT_TRACE7(( "P2 %d %d 255\n", width, rows ));
+          for ( i = 0; i < rows; i++ )
+          {
+            for ( j = 0; j < width; j += 1 )
+              FT_TRACE7(( " %3u", topleft[i * pitch + j] ));
+            FT_TRACE7(( "\n" ));
+          }
         }
+        FT_TRACE7(( "Netpbm image: end\n" ));
       }
-      FT_TRACE7(( "Netpbm image: end\n" ));
+      else
+        FT_TRACE7(( "Netpbm image: too large, omitted\n" ));
     }
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_objs
+#define FT_COMPONENT  objs
 
 #endif /* FT_DEBUG_LEVEL_TRACE */
 
@@ -4675,21 +4801,22 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Destroy_Module                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroys a given module object.  For drivers, this also destroys   */
-  /*    all child faces.                                                   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    module :: A handle to the target driver object.                    */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The driver _must_ be LOCKED!                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Destroy_Module
+   *
+   * @Description:
+   *   Destroys a given module object.  For drivers, this also destroys
+   *   all child faces.
+   *
+   * @InOut:
+   *   module ::
+   *     A handle to the target driver object.
+   *
+   * @Note:
+   *   The driver _must_ be LOCKED!
+   */
   static void
   Destroy_Module( FT_Module  module )
   {
@@ -5028,9 +5155,9 @@
     service = (FT_Service_Properties)interface;
 
     if ( set )
-      missing_func = (FT_Bool)( !service->set_property );
+      missing_func = FT_BOOL( !service->set_property );
     else
-      missing_func = (FT_Bool)( !service->get_property );
+      missing_func = FT_BOOL( !service->get_property );
 
     if ( missing_func )
     {
@@ -5156,13 +5283,6 @@
 
     library->memory = memory;
 
-#ifdef FT_CONFIG_OPTION_PIC
-    /* initialize position independent code containers */
-    error = ft_pic_container_init( library );
-    if ( error )
-      goto Fail;
-#endif
-
     library->version_major = FREETYPE_MAJOR;
     library->version_minor = FREETYPE_MINOR;
     library->version_patch = FREETYPE_PATCH;
@@ -5173,13 +5293,6 @@
     *alibrary = library;
 
     return FT_Err_Ok;
-
-#ifdef FT_CONFIG_OPTION_PIC
-  Fail:
-    ft_pic_container_destroy( library );
-    FT_FREE( library );
-    return error;
-#endif
   }
 
 
@@ -5237,10 +5350,10 @@
      *
      * Example:
      *
-     *  - the cff font driver uses the pshinter module in cff_size_done
-     *  - if the pshinter module is destroyed before the cff font driver,
-     *    opened FT_Face objects managed by the driver are not properly
-     *    destroyed, resulting in a memory leak
+     * - the cff font driver uses the pshinter module in cff_size_done
+     * - if the pshinter module is destroyed before the cff font driver,
+     *   opened FT_Face objects managed by the driver are not properly
+     *   destroyed, resulting in a memory leak
      *
      * Some faces are dependent on other faces, like Type42 faces that
      * depend on TrueType faces synthesized internally.
@@ -5310,11 +5423,6 @@
     }
 #endif
 
-#ifdef FT_CONFIG_OPTION_PIC
-    /* Destroy pic container contents */
-    ft_pic_container_destroy( library );
-#endif
-
     FT_FREE( library );
 
   Exit:
@@ -5402,4 +5510,41 @@
   }
 
 
+  /* documentation is in freetype.h */
+
+  FT_EXPORT_DEF( FT_Bool )
+  FT_Get_Color_Glyph_Layer( FT_Face            face,
+                            FT_UInt            base_glyph,
+                            FT_UInt           *aglyph_index,
+                            FT_UInt           *acolor_index,
+                            FT_LayerIterator*  iterator )
+  {
+    TT_Face       ttface;
+    SFNT_Service  sfnt;
+
+
+    if ( !face                                   ||
+         !aglyph_index                           ||
+         !acolor_index                           ||
+         !iterator                               ||
+         base_glyph >= (FT_UInt)face->num_glyphs )
+      return 0;
+
+    if ( !FT_IS_SFNT( face ) )
+      return 0;
+
+    ttface = (TT_Face)face;
+    sfnt   = (SFNT_Service)ttface->sfnt;
+
+    if ( sfnt->get_colr_layer )
+      return sfnt->get_colr_layer( ttface,
+                                   base_glyph,
+                                   aglyph_index,
+                                   acolor_index,
+                                   iterator );
+    else
+      return 0;
+  }
+
+
 /* END */
diff --git a/thirdparty/freetype/src/base/ftotval.c b/thirdparty/freetype/src/base/ftotval.c
index a2944a7950..007576ce6e 100644
--- a/thirdparty/freetype/src/base/ftotval.c
+++ b/thirdparty/freetype/src/base/ftotval.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftotval.c                                                              */
-/*                                                                         */
-/*    FreeType API for validating OpenType tables (body).                  */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftotval.c
+ *
+ *   FreeType API for validating OpenType tables (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_INTERNAL_DEBUG_H
diff --git a/thirdparty/freetype/src/base/ftoutln.c b/thirdparty/freetype/src/base/ftoutln.c
index cb91321deb..00329b46c6 100644
--- a/thirdparty/freetype/src/base/ftoutln.c
+++ b/thirdparty/freetype/src/base/ftoutln.c
@@ -1,26 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftoutln.c                                                              */
-/*                                                                         */
-/*    FreeType outline management (body).                                  */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* All functions are declared in freetype.h.                             */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftoutln.c
+ *
+ *   FreeType outline management (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -31,14 +24,14 @@
 #include FT_TRIGONOMETRY_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_outline
+#define FT_COMPONENT  outline
 
 
   static
@@ -296,15 +289,23 @@
   }
 
 
+  /* documentation is in ftoutln.h */
+
   FT_EXPORT_DEF( FT_Error )
-  FT_Outline_New_Internal( FT_Memory    memory,
-                           FT_UInt      numPoints,
-                           FT_Int       numContours,
-                           FT_Outline  *anoutline )
+  FT_Outline_New( FT_Library   library,
+                  FT_UInt      numPoints,
+                  FT_Int       numContours,
+                  FT_Outline  *anoutline )
   {
-    FT_Error  error;
+    FT_Error   error;
+    FT_Memory  memory;
 
 
+    if ( !library )
+      return FT_THROW( Invalid_Library_Handle );
+
+    memory = library->memory;
+
     if ( !anoutline || !memory )
       return FT_THROW( Invalid_Argument );
 
@@ -330,7 +331,7 @@
 
   Fail:
     anoutline->flags |= FT_OUTLINE_OWNER;
-    FT_Outline_Done_Internal( memory, anoutline );
+    FT_Outline_Done( library, anoutline );
 
     return error;
   }
@@ -339,22 +340,6 @@
   /* documentation is in ftoutln.h */
 
   FT_EXPORT_DEF( FT_Error )
-  FT_Outline_New( FT_Library   library,
-                  FT_UInt      numPoints,
-                  FT_Int       numContours,
-                  FT_Outline  *anoutline )
-  {
-    if ( !library )
-      return FT_THROW( Invalid_Library_Handle );
-
-    return FT_Outline_New_Internal( library->memory, numPoints,
-                                    numContours, anoutline );
-  }
-
-
-  /* documentation is in ftoutln.h */
-
-  FT_EXPORT_DEF( FT_Error )
   FT_Outline_Check( FT_Outline*  outline )
   {
     if ( outline )
@@ -436,13 +421,23 @@
   }
 
 
+  /* documentation is in ftoutln.h */
+
   FT_EXPORT_DEF( FT_Error )
-  FT_Outline_Done_Internal( FT_Memory    memory,
-                            FT_Outline*  outline )
+  FT_Outline_Done( FT_Library   library,
+                   FT_Outline*  outline )
   {
+    FT_Memory  memory;
+
+
+    if ( !library )
+      return FT_THROW( Invalid_Library_Handle );
+
     if ( !outline )
       return FT_THROW( Invalid_Outline );
 
+    memory = library->memory;
+
     if ( !memory )
       return FT_THROW( Invalid_Argument );
 
@@ -460,21 +455,6 @@
 
   /* documentation is in ftoutln.h */
 
-  FT_EXPORT_DEF( FT_Error )
-  FT_Outline_Done( FT_Library   library,
-                   FT_Outline*  outline )
-  {
-    /* check for valid `outline' in FT_Outline_Done_Internal() */
-
-    if ( !library )
-      return FT_THROW( Invalid_Library_Handle );
-
-    return FT_Outline_Done_Internal( library->memory, outline );
-  }
-
-
-  /* documentation is in ftoutln.h */
-
   FT_EXPORT_DEF( void )
   FT_Outline_Get_CBox( const FT_Outline*  outline,
                        FT_BBox           *acbox )
@@ -619,6 +599,7 @@
     FT_Error     error;
     FT_Renderer  renderer;
     FT_ListNode  node;
+    FT_BBox      cbox;
 
 
     if ( !library )
@@ -630,6 +611,11 @@
     if ( !params )
       return FT_THROW( Invalid_Argument );
 
+    FT_Outline_Get_CBox( outline, &cbox );
+    if ( cbox.xMin < -0x1000000L || cbox.yMin < -0x1000000L ||
+         cbox.xMax >  0x1000000L || cbox.yMax >  0x1000000L )
+      return FT_THROW( Invalid_Outline );
+
     renderer = library->cur_renderer;
     node     = library->renderers.head;
 
@@ -911,9 +897,9 @@
                          FT_Pos       xstrength,
                          FT_Pos       ystrength )
   {
-    FT_Vector*  points;
-    FT_Int      c, first, last;
-    FT_Int      orientation;
+    FT_Vector*      points;
+    FT_Int          c, first, last;
+    FT_Orientation  orientation;
 
 
     if ( !outline )
@@ -1044,7 +1030,7 @@
   FT_EXPORT_DEF( FT_Orientation )
   FT_Outline_Get_Orientation( FT_Outline*  outline )
   {
-    FT_BBox     cbox;
+    FT_BBox     cbox = { 0, 0, 0, 0 };
     FT_Int      xshift, yshift;
     FT_Vector*  points;
     FT_Vector   v_prev, v_cur;
@@ -1090,7 +1076,8 @@
         v_cur.y = points[n].y >> yshift;
 
         area = ADD_LONG( area,
-                         ( v_cur.y - v_prev.y ) * ( v_cur.x + v_prev.x ) );
+                         MUL_LONG( v_cur.y - v_prev.y,
+                                   v_cur.x + v_prev.x ) );
 
         v_prev = v_cur;
       }
diff --git a/thirdparty/freetype/src/base/ftpatent.c b/thirdparty/freetype/src/base/ftpatent.c
index e23ee2e3f4..020f4646eb 100644
--- a/thirdparty/freetype/src/base/ftpatent.c
+++ b/thirdparty/freetype/src/base/ftpatent.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpatent.c                                                             */
-/*                                                                         */
-/*    FreeType API for checking patented TrueType bytecode instructions    */
-/*    (body).  Obsolete, retained for backward compatibility.              */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  David Turner.                                                          */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftpatent.c
+ *
+ *   FreeType API for checking patented TrueType bytecode instructions
+ *   (body).  Obsolete, retained for backward compatibility.
+ *
+ * Copyright (C) 2007-2019 by
+ * David Turner.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_FREETYPE_H
diff --git a/thirdparty/freetype/src/base/ftpfr.c b/thirdparty/freetype/src/base/ftpfr.c
index bfe13520eb..aeff1db8bd 100644
--- a/thirdparty/freetype/src/base/ftpfr.c
+++ b/thirdparty/freetype/src/base/ftpfr.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpfr.c                                                                */
-/*                                                                         */
-/*    FreeType API for accessing PFR-specific data (body).                 */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftpfr.c
+ *
+ *   FreeType API for accessing PFR-specific data (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_INTERNAL_DEBUG_H
diff --git a/thirdparty/freetype/src/base/ftpic.c b/thirdparty/freetype/src/base/ftpic.c
deleted file mode 100644
index 1492e1809a..0000000000
--- a/thirdparty/freetype/src/base/ftpic.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpic.c                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services (body).              */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "basepic.h"
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* documentation is in ftpic.h */
-
-  FT_BASE_DEF( FT_Error )
-  ft_pic_container_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error;
-
-
-    FT_MEM_SET( pic_container, 0, sizeof ( *pic_container ) );
-
-    error = ft_base_pic_init( library );
-    if ( error )
-      return error;
-
-    return FT_Err_Ok;
-  }
-
-
-  /* Destroy the contents of the container. */
-  FT_BASE_DEF( void )
-  ft_pic_container_destroy( FT_Library  library )
-  {
-    ft_base_pic_free( library );
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/base/ftpsprop.c b/thirdparty/freetype/src/base/ftpsprop.c
index 459b5e6054..52b9d453ad 100644
--- a/thirdparty/freetype/src/base/ftpsprop.c
+++ b/thirdparty/freetype/src/base/ftpsprop.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftpsprop.c                                                             */
-/*                                                                         */
-/*    Get and set properties of PostScript drivers (body).                 */
-/*    See `ftdriver.h' for available properties.                           */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftpsprop.c
+ *
+ *   Get and set properties of PostScript drivers (body).
+ *   See `ftdriver.h' for available properties.
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -25,14 +25,14 @@
 #include FT_INTERNAL_POSTSCRIPT_PROPS_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_psprops
+#define FT_COMPONENT  psprops
 
 
   FT_BASE_CALLBACK_DEF( FT_Error )
diff --git a/thirdparty/freetype/src/base/ftrfork.c b/thirdparty/freetype/src/base/ftrfork.c
index c3a2b9151a..73b7eb0ded 100644
--- a/thirdparty/freetype/src/base/ftrfork.c
+++ b/thirdparty/freetype/src/base/ftrfork.c
@@ -1,38 +1,38 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftrfork.c                                                              */
-/*                                                                         */
-/*    Embedded resource forks accessor (body).                             */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Masatake YAMATO and Redhat K.K.                                        */
-/*                                                                         */
-/*  FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are     */
-/*  derived from ftobjs.c.                                                 */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/* Development of the code in this file is support of                      */
-/* Information-technology Promotion Agency, Japan.                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftrfork.c
+ *
+ *   Embedded resource forks accessor (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * Masatake YAMATO and Redhat K.K.
+ *
+ * FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are
+ * derived from ftobjs.c.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ * Development of the code in this file is support of
+ * Information-technology Promotion Agency, Japan.
+ */
 
 
 #include <ft2build.h>
 #include FT_INTERNAL_DEBUG_H
 #include FT_INTERNAL_STREAM_H
 #include FT_INTERNAL_RFORK_H
-#include "basepic.h"
+
 #include "ftbase.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_raccess
+#define FT_COMPONENT  raccess
 
 
   /*************************************************************************/
@@ -438,7 +438,7 @@
 
   static FT_Error
   raccess_guess_linux_double_from_file_name( FT_Library  library,
-                                             char *      file_name,
+                                             char*       file_name,
                                              FT_Long    *result_offset );
 
   static char *
@@ -468,10 +468,10 @@
       if ( errors[i] )
         continue;
 
-      errors[i] = (FT_RACCESS_GUESS_TABLE_GET[i].func)( library,
-                                                 stream, base_name,
-                                                 &(new_names[i]),
-                                                 &(offsets[i]) );
+      errors[i] = ft_raccess_guess_table[i].func( library,
+                                                  stream, base_name,
+                                                  &(new_names[i]),
+                                                  &(offsets[i]) );
     }
 
     return;
@@ -488,7 +488,7 @@
     if ( rule_index >= FT_RACCESS_N_RULES )
       return FT_RFork_Rule_invalid;
 
-    return FT_RACCESS_GUESS_TABLE_GET[rule_index].type;
+    return ft_raccess_guess_table[rule_index].type;
   }
 
 
@@ -847,7 +847,7 @@
   {
     FT_Open_Args  args2;
     FT_Stream     stream2;
-    char *        nouse = NULL;
+    char*         nouse = NULL;
     FT_Error      error;
 
 
@@ -909,9 +909,9 @@
 #else   /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
 
 
-  /*************************************************************************/
-  /*                  Dummy function; just sets errors                     */
-  /*************************************************************************/
+  /**************************************************************************
+   *                 Dummy function; just sets errors
+   */
 
   FT_BASE_DEF( void )
   FT_Raccess_Guess( FT_Library  library,
diff --git a/thirdparty/freetype/src/base/ftsnames.c b/thirdparty/freetype/src/base/ftsnames.c
index 90ea1e2be7..7ab3fe3cfa 100644
--- a/thirdparty/freetype/src/base/ftsnames.c
+++ b/thirdparty/freetype/src/base/ftsnames.c
@@ -1,22 +1,22 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsnames.c                                                             */
-/*                                                                         */
-/*    Simple interface to access SFNT name tables (which are used          */
-/*    to hold font names, copyright info, notices, etc.) (body).           */
-/*                                                                         */
-/*    This is _not_ used to retrieve glyph names!                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsnames.c
+ *
+ *   Simple interface to access SFNT name tables (which are used
+ *   to hold font names, copyright info, notices, etc.) (body).
+ *
+ *   This is _not_ used to retrieve glyph names!
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -142,7 +142,45 @@
   }
 
 
-#endif /* TT_CONFIG_OPTION_SFNT_NAMES */
+#else /* !TT_CONFIG_OPTION_SFNT_NAMES */
+
+
+  FT_EXPORT_DEF( FT_UInt )
+  FT_Get_Sfnt_Name_Count( FT_Face  face )
+  {
+    FT_UNUSED( face );
+
+    return 0;
+  }
+
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Get_Sfnt_Name( FT_Face       face,
+                    FT_UInt       idx,
+                    FT_SfntName  *aname )
+  {
+    FT_UNUSED( face );
+    FT_UNUSED( idx );
+    FT_UNUSED( aname );
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Get_Sfnt_LangTag( FT_Face          face,
+                       FT_UInt          langID,
+                       FT_SfntLangTag  *alangTag )
+  {
+    FT_UNUSED( face );
+    FT_UNUSED( langID );
+    FT_UNUSED( alangTag );
+
+    return FT_THROW( Unimplemented_Feature );
+  }
+
+
+#endif /* !TT_CONFIG_OPTION_SFNT_NAMES */
 
 
 /* END */
diff --git a/thirdparty/freetype/src/base/ftstream.c b/thirdparty/freetype/src/base/ftstream.c
index 18df7dcfef..4b0890d7fd 100644
--- a/thirdparty/freetype/src/base/ftstream.c
+++ b/thirdparty/freetype/src/base/ftstream.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftstream.c                                                             */
-/*                                                                         */
-/*    I/O stream support (body).                                           */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftstream.c
+ *
+ *   I/O stream support (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -21,14 +21,14 @@
 #include FT_INTERNAL_DEBUG_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_stream
+#define FT_COMPONENT  stream
 
 
   FT_BASE_DEF( void )
@@ -219,13 +219,14 @@
     {
       FT_Memory  memory = stream->memory;
 
+
 #ifdef FT_DEBUG_MEMORY
       ft_mem_free( memory, *pbytes );
-      *pbytes = NULL;
 #else
       FT_FREE( *pbytes );
 #endif
     }
+
     *pbytes = NULL;
   }
 
@@ -238,6 +239,8 @@
     FT_ULong  read_bytes;
 
 
+    FT_TRACE7(( "FT_Stream_EnterFrame: %ld bytes\n", count ));
+
     /* check for nested frame access */
     FT_ASSERT( stream && stream->cursor == 0 );
 
@@ -281,6 +284,7 @@
         FT_FREE( stream->base );
         error = FT_THROW( Invalid_Stream_Operation );
       }
+
       stream->cursor = stream->base;
       stream->limit  = stream->cursor + count;
       stream->pos   += read_bytes;
@@ -321,13 +325,16 @@
     /*  In this case, the loader code handles the 0-length table          */
     /*  gracefully; however, stream.cursor is really set to 0 by the      */
     /*  FT_Stream_EnterFrame() call, and this is not an error.            */
-    /*                                                                    */
+
+    FT_TRACE7(( "FT_Stream_ExitFrame\n" ));
+
     FT_ASSERT( stream );
 
     if ( stream->read )
     {
       FT_Memory  memory = stream->memory;
 
+
 #ifdef FT_DEBUG_MEMORY
       ft_mem_free( memory, stream->base );
       stream->base = NULL;
@@ -335,6 +342,7 @@
       FT_FREE( stream->base );
 #endif
     }
+
     stream->cursor = NULL;
     stream->limit  = NULL;
   }
diff --git a/thirdparty/freetype/src/base/ftstroke.c b/thirdparty/freetype/src/base/ftstroke.c
index 6ae1819067..826062c94e 100644
--- a/thirdparty/freetype/src/base/ftstroke.c
+++ b/thirdparty/freetype/src/base/ftstroke.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftstroke.c                                                             */
-/*                                                                         */
-/*    FreeType path stroker (body).                                        */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftstroke.c
+ *
+ *   FreeType path stroker (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -24,15 +24,10 @@
 #include FT_INTERNAL_DEBUG_H
 #include FT_INTERNAL_OBJECTS_H
 
-#include "basepic.h"
 
-
-  /* declare an extern to access `ft_outline_glyph_class' globally     */
-  /* allocated  in `ftglyph.c', and use the FT_OUTLINE_GLYPH_CLASS_GET */
-  /* macro to access it when FT_CONFIG_OPTION_PIC is defined           */
-#ifndef FT_CONFIG_OPTION_PIC
+  /* declare an extern to access `ft_outline_glyph_class' globally */
+  /* allocated  in `ftglyph.c'                                     */
   FT_CALLBACK_TABLE const FT_Glyph_Class  ft_outline_glyph_class;
-#endif
 
 
   /* documentation is in ftstroke.h */
@@ -372,6 +367,7 @@
       /* it contains the `adjusted' starting coordinates          */
       border->num_points    = --count;
       border->points[start] = border->points[count];
+      border->tags[start]   = border->tags[count];
 
       if ( reverse )
       {
@@ -436,8 +432,8 @@
     }
     else
     {
-      /* don't add zero-length lineto */
-      if ( border->num_points > 0                                          &&
+      /* don't add zero-length lineto, but always add moveto */
+      if ( border->num_points > (FT_UInt)border->start                     &&
            FT_IS_SMALL( border->points[border->num_points - 1].x - to->x ) &&
            FT_IS_SMALL( border->points[border->num_points - 1].y - to->y ) )
         return error;
@@ -2087,8 +2083,8 @@
   /* documentation is in ftstroke.h */
 
   /*
-   *  The following is very similar to FT_Outline_Decompose, except
-   *  that we do support opened paths, and do not scale the outline.
+   * The following is very similar to FT_Outline_Decompose, except
+   * that we do support opened paths, and do not scale the outline.
    */
   FT_EXPORT_DEF( FT_Error )
   FT_Stroker_ParseOutline( FT_Stroker   stroker,
@@ -2306,17 +2302,12 @@
     FT_Error  error = FT_ERR( Invalid_Argument );
     FT_Glyph  glyph = NULL;
 
-    /* for FT_OUTLINE_GLYPH_CLASS_GET (in PIC mode) */
-    FT_Library  library = stroker->library;
-
-    FT_UNUSED( library );
-
 
     if ( !pglyph )
       goto Exit;
 
     glyph = *pglyph;
-    if ( !glyph || glyph->clazz != FT_OUTLINE_GLYPH_CLASS_GET )
+    if ( !glyph || glyph->clazz != &ft_outline_glyph_class )
       goto Exit;
 
     {
@@ -2386,17 +2377,12 @@
     FT_Error  error = FT_ERR( Invalid_Argument );
     FT_Glyph  glyph = NULL;
 
-    /* for FT_OUTLINE_GLYPH_CLASS_GET (in PIC mode) */
-    FT_Library  library = stroker->library;
-
-    FT_UNUSED( library );
-
 
     if ( !pglyph )
       goto Exit;
 
     glyph = *pglyph;
-    if ( !glyph || glyph->clazz != FT_OUTLINE_GLYPH_CLASS_GET )
+    if ( !glyph || glyph->clazz != &ft_outline_glyph_class )
       goto Exit;
 
     {
diff --git a/thirdparty/freetype/src/base/ftsynth.c b/thirdparty/freetype/src/base/ftsynth.c
index c28346707b..f87ed65e75 100644
--- a/thirdparty/freetype/src/base/ftsynth.c
+++ b/thirdparty/freetype/src/base/ftsynth.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsynth.c                                                              */
-/*                                                                         */
-/*    FreeType synthesizing code for emboldening and slanting (body).      */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsynth.c
+ *
+ *   FreeType synthesizing code for emboldening and slanting (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -24,14 +24,14 @@
 #include FT_BITMAP_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_synth
+#define FT_COMPONENT  synth
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/base/ftsystem.c b/thirdparty/freetype/src/base/ftsystem.c
index 6adebdb938..f92b3a03d5 100644
--- a/thirdparty/freetype/src/base/ftsystem.c
+++ b/thirdparty/freetype/src/base/ftsystem.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsystem.c                                                             */
-/*                                                                         */
-/*    ANSI-specific FreeType low-level system interface (body).            */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file contains the default interface used by FreeType to access   */
-  /* low-level, i.e. memory management, i/o access as well as thread       */
-  /* synchronisation.  It can be replaced by user-specific routines if     */
-  /* necessary.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftsystem.c
+ *
+ *   ANSI-specific FreeType low-level system interface (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * This file contains the default interface used by FreeType to access
+   * low-level, i.e. memory management, i/o access as well as thread
+   * synchronisation.  It can be replaced by user-specific routines if
+   * necessary.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -34,37 +34,39 @@
 #include FT_TYPES_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                       MEMORY MANAGEMENT INTERFACE                     */
-  /*                                                                       */
-  /*************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* It is not necessary to do any error checking for the                  */
-  /* allocation-related functions.  This will be done by the higher level  */
-  /* routines like ft_mem_alloc() or ft_mem_realloc().                     */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_alloc                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The memory allocation function.                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory :: A pointer to the memory object.                          */
-  /*                                                                       */
-  /*    size   :: The requested size in bytes.                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The address of newly allocated block.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                      MEMORY MANAGEMENT INTERFACE
+   *
+   */
+
+  /**************************************************************************
+   *
+   * It is not necessary to do any error checking for the
+   * allocation-related functions.  This will be done by the higher level
+   * routines like ft_mem_alloc() or ft_mem_realloc().
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_alloc
+   *
+   * @Description:
+   *   The memory allocation function.
+   *
+   * @Input:
+   *   memory ::
+   *     A pointer to the memory object.
+   *
+   *   size ::
+   *     The requested size in bytes.
+   *
+   * @Return:
+   *   The address of newly allocated block.
+   */
   FT_CALLBACK_DEF( void* )
   ft_alloc( FT_Memory  memory,
             long       size )
@@ -75,26 +77,30 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_realloc                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The memory reallocation function.                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory   :: A pointer to the memory object.                        */
-  /*                                                                       */
-  /*    cur_size :: The current size of the allocated memory block.        */
-  /*                                                                       */
-  /*    new_size :: The newly requested size in bytes.                     */
-  /*                                                                       */
-  /*    block    :: The current address of the block in memory.            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The address of the reallocated memory block.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_realloc
+   *
+   * @Description:
+   *   The memory reallocation function.
+   *
+   * @Input:
+   *   memory ::
+   *     A pointer to the memory object.
+   *
+   *   cur_size ::
+   *     The current size of the allocated memory block.
+   *
+   *   new_size ::
+   *     The newly requested size in bytes.
+   *
+   *   block ::
+   *     The current address of the block in memory.
+   *
+   * @Return:
+   *   The address of the reallocated memory block.
+   */
   FT_CALLBACK_DEF( void* )
   ft_realloc( FT_Memory  memory,
               long       cur_size,
@@ -108,19 +114,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_free                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The memory release function.                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory  :: A pointer to the memory object.                         */
-  /*                                                                       */
-  /*    block   :: The address of block in memory to be freed.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_free
+   *
+   * @Description:
+   *   The memory release function.
+   *
+   * @Input:
+   *   memory ::
+   *     A pointer to the memory object.
+   *
+   *   block ::
+   *     The address of block in memory to be freed.
+   */
   FT_CALLBACK_DEF( void )
   ft_free( FT_Memory  memory,
            void*      block )
@@ -131,39 +139,40 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                     RESOURCE MANAGEMENT INTERFACE                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                    RESOURCE MANAGEMENT INTERFACE
+   *
+   */
 
 #ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_io
+#define FT_COMPONENT  io
 
   /* We use the macro STREAM_FILE for convenience to extract the       */
   /* system-specific stream handle from a given FreeType stream object */
 #define STREAM_FILE( stream )  ( (FT_FILE*)stream->descriptor.pointer )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_ansi_stream_close                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The function to close a stream.                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: A pointer to the stream object.                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_ansi_stream_close
+   *
+   * @Description:
+   *   The function to close a stream.
+   *
+   * @Input:
+   *   stream ::
+   *     A pointer to the stream object.
+   */
   FT_CALLBACK_DEF( void )
   ft_ansi_stream_close( FT_Stream  stream )
   {
@@ -175,28 +184,32 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_ansi_stream_io                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The function to open a stream.                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: A pointer to the stream object.                          */
-  /*                                                                       */
-  /*    offset :: The position in the data stream to start reading.        */
-  /*                                                                       */
-  /*    buffer :: The address of buffer to store the read data.            */
-  /*                                                                       */
-  /*    count  :: The number of bytes to read from the stream.             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The number of bytes actually read.  If `count' is zero (this is,   */
-  /*    the function is used for seeking), a non-zero return value         */
-  /*    indicates an error.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_ansi_stream_io
+   *
+   * @Description:
+   *   The function to open a stream.
+   *
+   * @Input:
+   *   stream ::
+   *     A pointer to the stream object.
+   *
+   *   offset ::
+   *     The position in the data stream to start reading.
+   *
+   *   buffer ::
+   *     The address of buffer to store the read data.
+   *
+   *   count ::
+   *     The number of bytes to read from the stream.
+   *
+   * @Return:
+   *   The number of bytes actually read.  If `count' is zero (this is,
+   *   the function is used for seeking), a non-zero return value
+   *   indicates an error.
+   */
   FT_CALLBACK_DEF( unsigned long )
   ft_ansi_stream_io( FT_Stream       stream,
                      unsigned long   offset,
diff --git a/thirdparty/freetype/src/base/fttrigon.c b/thirdparty/freetype/src/base/fttrigon.c
index d6dd098c42..38721977c7 100644
--- a/thirdparty/freetype/src/base/fttrigon.c
+++ b/thirdparty/freetype/src/base/fttrigon.c
@@ -1,33 +1,33 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fttrigon.c                                                             */
-/*                                                                         */
-/*    FreeType trigonometric functions (body).                             */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This is a fixed-point CORDIC implementation of trigonometric          */
-  /* functions as well as transformations between Cartesian and polar      */
-  /* coordinates.  The angles are represented as 16.16 fixed-point values  */
-  /* in degrees, i.e., the angular resolution is 2^-16 degrees.  Note that */
-  /* only vectors longer than 2^16*180/pi (or at least 22 bits) on a       */
-  /* discrete Cartesian grid can have the same or better angular           */
-  /* resolution.  Therefore, to maintain this precision, some functions    */
-  /* require an interim upscaling of the vectors, whereas others operate   */
-  /* with 24-bit long vectors directly.                                    */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * fttrigon.c
+ *
+ *   FreeType trigonometric functions (body).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * This is a fixed-point CORDIC implementation of trigonometric
+   * functions as well as transformations between Cartesian and polar
+   * coordinates.  The angles are represented as 16.16 fixed-point values
+   * in degrees, i.e., the angular resolution is 2^-16 degrees.  Note that
+   * only vectors longer than 2^16*180/pi (or at least 22 bits) on a
+   * discrete Cartesian grid can have the same or better angular
+   * resolution.  Therefore, to maintain this precision, some functions
+   * require an interim upscaling of the vectors, whereas others operate
+   * with 24-bit long vectors directly.
+   *
+   */
 
 #include <ft2build.h>
 #include FT_INTERNAL_OBJECTS_H
@@ -325,10 +325,10 @@
   FT_EXPORT_DEF( FT_Fixed )
   FT_Tan( FT_Angle  angle )
   {
-    FT_Vector  v;
+    FT_Vector  v = { 1 << 24, 0 };
 
 
-    FT_Vector_Unit( &v, angle );
+    ft_trig_pseudo_rotate( &v, angle );
 
     return FT_DivFix( v.y, v.x );
   }
@@ -372,14 +372,6 @@
   }
 
 
-  /* these macros return 0 for positive numbers,
-     and -1 for negative ones */
-#define FT_SIGN_LONG( x )   ( (x) >> ( FT_SIZEOF_LONG * 8 - 1 ) )
-#define FT_SIGN_INT( x )    ( (x) >> ( FT_SIZEOF_INT * 8 - 1 ) )
-#define FT_SIGN_INT32( x )  ( (x) >> 31 )
-#define FT_SIGN_INT16( x )  ( (x) >> 15 )
-
-
   /* documentation is in fttrigon.h */
 
   FT_EXPORT_DEF( void )
@@ -408,8 +400,8 @@
       FT_Int32  half = (FT_Int32)1L << ( shift - 1 );
 
 
-      vec->x = ( v.x + half + FT_SIGN_LONG( v.x ) ) >> shift;
-      vec->y = ( v.y + half + FT_SIGN_LONG( v.y ) ) >> shift;
+      vec->x = ( v.x + half - ( v.x < 0 ) ) >> shift;
+      vec->y = ( v.y + half - ( v.y < 0 ) ) >> shift;
     }
     else
     {
diff --git a/thirdparty/freetype/src/base/fttype1.c b/thirdparty/freetype/src/base/fttype1.c
index aa8f8ccbbb..26d4f1c3a8 100644
--- a/thirdparty/freetype/src/base/fttype1.c
+++ b/thirdparty/freetype/src/base/fttype1.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fttype1.c                                                              */
-/*                                                                         */
-/*    FreeType utility file for PS names support (body).                   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * fttype1.c
+ *
+ *   FreeType utility file for PS names support (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/ftutil.c b/thirdparty/freetype/src/base/ftutil.c
index 4de5f2c145..92bd857e92 100644
--- a/thirdparty/freetype/src/base/ftutil.c
+++ b/thirdparty/freetype/src/base/ftutil.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftutil.c                                                               */
-/*                                                                         */
-/*    FreeType utility file for memory and list management (body).         */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftutil.c
+ *
+ *   FreeType utility file for memory and list management (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -23,14 +23,14 @@
 #include FT_LIST_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_memory
+#define FT_COMPONENT  memory
 
 
   /*************************************************************************/
@@ -54,7 +54,7 @@
     FT_Error    error;
     FT_Pointer  block = ft_mem_qalloc( memory, size, &error );
 
-    if ( !error && size > 0 )
+    if ( !error && block && size > 0 )
       FT_MEM_ZERO( block, size );
 
     *p_error = error;
@@ -101,7 +101,7 @@
 
     block = ft_mem_qrealloc( memory, item_size,
                              cur_count, new_count, block, &error );
-    if ( !error && new_count > cur_count )
+    if ( !error && block && new_count > cur_count )
       FT_MEM_ZERO( (char*)block + cur_count * item_size,
                    ( new_count - cur_count ) * item_size );
 
@@ -185,7 +185,7 @@
     FT_Pointer  p = ft_mem_qalloc( memory, (FT_Long)size, &error );
 
 
-    if ( !error && address )
+    if ( !error && address && size > 0 )
       ft_memcpy( p, address, size );
 
     *p_error = error;
@@ -236,7 +236,7 @@
   /*************************************************************************/
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_list
+#define FT_COMPONENT  list
 
   /* documentation is in ftlist.h */
 
diff --git a/thirdparty/freetype/src/base/ftver.rc b/thirdparty/freetype/src/base/ftver.rc
index a2903d5883..e02a88652c 100644
--- a/thirdparty/freetype/src/base/ftver.rc
+++ b/thirdparty/freetype/src/base/ftver.rc
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    FreeType VERSIONINFO resource for Windows DLLs.                      */
 /*                                                                         */
-/*  Copyright 2018 by                                                      */
+/*  Copyright (C) 2018-2019 by                                             */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -18,8 +18,8 @@
 
 #include<windows.h>
 
-#define FT_VERSION      2,9,1,0
-#define FT_VERSION_STR  "2.9.1"
+#define FT_VERSION      2,10,0,0
+#define FT_VERSION_STR  "2.10.0"
 
 VS_VERSION_INFO      VERSIONINFO
 FILEVERSION          FT_VERSION
@@ -28,7 +28,7 @@ FILEFLAGSMASK        VS_FFI_FILEFLAGSMASK
 #ifdef _DEBUG
 FILEFLAGS            VS_FF_DEBUG
 #endif
-#ifdef _DLL
+#ifdef DLL_EXPORT
 FILETYPE             VFT_DLL
 #define FT_FILENAME  "freetype.dll"
 #else
@@ -45,7 +45,7 @@ BEGIN
       VALUE "FileVersion",      FT_VERSION_STR
       VALUE "ProductName",      "FreeType"
       VALUE "ProductVersion",   FT_VERSION_STR
-      VALUE "LegalCopyright",   "\251 2018 The FreeType Project www.freetype.org. All rights reserved."
+      VALUE "LegalCopyright",   "\251 2018-2019 The FreeType Project www.freetype.org. All rights reserved."
       VALUE "InternalName",     "freetype"
       VALUE "OriginalFilename", FT_FILENAME
     END
diff --git a/thirdparty/freetype/src/base/ftwinfnt.c b/thirdparty/freetype/src/base/ftwinfnt.c
index 11bd28afb7..59daa77031 100644
--- a/thirdparty/freetype/src/base/ftwinfnt.c
+++ b/thirdparty/freetype/src/base/ftwinfnt.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftwinfnt.c                                                             */
-/*                                                                         */
-/*    FreeType API for accessing Windows FNT specific info (body).         */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftwinfnt.c
+ *
+ *   FreeType API for accessing Windows FNT specific info (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/base/rules.mk b/thirdparty/freetype/src/base/rules.mk
index e9805bd068..4b24c6dce7 100644
--- a/thirdparty/freetype/src/base/rules.mk
+++ b/thirdparty/freetype/src/base/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -36,17 +36,17 @@ BASE_COMPILE := $(CC) $(ANSIFLAGS)                             \
 # All files listed here should be included in `ftbase.c' (for a `single'
 # build).
 #
-BASE_SRC := $(BASE_DIR)/basepic.c  \
-            $(BASE_DIR)/ftadvanc.c \
+BASE_SRC := $(BASE_DIR)/ftadvanc.c \
             $(BASE_DIR)/ftcalc.c   \
+            $(BASE_DIR)/ftcolor.c  \
             $(BASE_DIR)/ftdbgmem.c \
+            $(BASE_DIR)/fterrors.c \
             $(BASE_DIR)/ftfntfmt.c \
             $(BASE_DIR)/ftgloadr.c \
             $(BASE_DIR)/fthash.c   \
             $(BASE_DIR)/ftlcdfil.c \
             $(BASE_DIR)/ftobjs.c   \
             $(BASE_DIR)/ftoutln.c  \
-            $(BASE_DIR)/ftpic.c    \
             $(BASE_DIR)/ftpsprop.c \
             $(BASE_DIR)/ftrfork.c  \
             $(BASE_DIR)/ftsnames.c \
@@ -60,8 +60,7 @@ ifneq ($(ftmac_c),)
 endif
 
 # for simplicity, we also handle `md5.c' (which gets included by `ftobjs.h')
-BASE_H := $(BASE_DIR)/basepic.h \
-          $(BASE_DIR)/ftbase.h  \
+BASE_H := $(BASE_DIR)/ftbase.h  \
           $(BASE_DIR)/md5.c     \
           $(BASE_DIR)/md5.h
 
diff --git a/thirdparty/freetype/src/bdf/bdf.h b/thirdparty/freetype/src/bdf/bdf.h
index 9012727c7e..4018756f72 100644
--- a/thirdparty/freetype/src/bdf/bdf.h
+++ b/thirdparty/freetype/src/bdf/bdf.h
@@ -51,11 +51,11 @@ FT_BEGIN_HEADER
 /* end of bdfP.h */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* BDF font options macros and types.                                    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * BDF font options macros and types.
+   *
+   */
 
 
 #define BDF_CORRECT_METRICS  0x01 /* Correct invalid metrics when loading. */
@@ -93,11 +93,11 @@ FT_BEGIN_HEADER
                              void*           client_data );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* BDF font property macros and types.                                   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * BDF font property macros and types.
+   *
+   */
 
 
 #define BDF_ATOM      1
@@ -123,11 +123,11 @@ FT_BEGIN_HEADER
   } bdf_property_t;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* BDF font metric and glyph types.                                      */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * BDF font metric and glyph types.
+   *
+   */
 
 
   typedef struct  bdf_bbx_t_
@@ -147,7 +147,7 @@ FT_BEGIN_HEADER
   typedef struct  bdf_glyph_t_
   {
     char*           name;        /* Glyph name.                          */
-    long            encoding;    /* Glyph encoding.                      */
+    unsigned long   encoding;    /* Glyph encoding.                      */
     unsigned short  swidth;      /* Scalable width.                      */
     unsigned short  dwidth;      /* Device width.                        */
     bdf_bbx_t       bbx;         /* Glyph bounding box.                  */
@@ -158,20 +158,6 @@ FT_BEGIN_HEADER
   } bdf_glyph_t;
 
 
-  typedef struct  bdf_glyphlist_t_
-  {
-    unsigned short  pad;          /* Pad to 4-byte boundary.              */
-    unsigned short  bpp;          /* Bits per pixel.                      */
-    long            start;        /* Beginning encoding value of glyphs.  */
-    long            end;          /* Ending encoding value of glyphs.     */
-    bdf_glyph_t*    glyphs;       /* Glyphs themselves.                   */
-    unsigned long   glyphs_size;  /* Glyph structures allocated.          */
-    unsigned long   glyphs_used;  /* Glyph structures used.               */
-    bdf_bbx_t       bbx;          /* Overall bounding box of glyphs.      */
-
-  } bdf_glyphlist_t;
-
-
   typedef struct  bdf_font_t_
   {
     char*            name;           /* Name of the font.                   */
@@ -185,7 +171,7 @@ FT_BEGIN_HEADER
 
     unsigned short   monowidth;      /* Logical width for monowidth font.   */
 
-    long             default_char;   /* Encoding of the default glyph.      */
+    unsigned long    default_char;   /* Encoding of the default glyph.      */
 
     long             font_ascent;    /* Font ascent.                        */
     long             font_descent;   /* Font descent.                       */
@@ -205,16 +191,8 @@ FT_BEGIN_HEADER
     char*            comments;       /* Font comments.                      */
     unsigned long    comments_len;   /* Length of comment string.           */
 
-    bdf_glyphlist_t  overflow;       /* Storage used for glyph insertion.   */
-
     void*            internal;       /* Internal data for the font.         */
 
-    /* The size of the next two arrays must be in sync with the */
-    /* size of the `have' array in the `bdf_parse_t' structure. */
-    unsigned long    nmod[34816];    /* Bitmap indicating modified glyphs.  */
-    unsigned long    umod[34816];    /* Bitmap indicating modified          */
-                                     /* unencoded glyphs.                   */
-    unsigned short   modified;       /* Boolean indicating font modified.   */
     unsigned short   bpp;            /* Bits per pixel.                     */
 
     FT_Memory        memory;
@@ -226,11 +204,11 @@ FT_BEGIN_HEADER
   } bdf_font_t;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Types for load/save callbacks.                                        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Types for load/save callbacks.
+   *
+   */
 
 
   /* Error codes. */
@@ -247,11 +225,11 @@ FT_BEGIN_HEADER
 #define BDF_INVALID_LINE      -100
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* BDF font API.                                                         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * BDF font API.
+   *
+   */
 
   FT_LOCAL( FT_Error )
   bdf_load_font( FT_Stream       stream,
diff --git a/thirdparty/freetype/src/bdf/bdfdrivr.c b/thirdparty/freetype/src/bdf/bdfdrivr.c
index ca937f89ce..4a11843a1c 100644
--- a/thirdparty/freetype/src/bdf/bdfdrivr.c
+++ b/thirdparty/freetype/src/bdf/bdfdrivr.c
@@ -41,14 +41,14 @@ THE SOFTWARE.
 #include "bdferror.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_bdfdriver
+#define FT_COMPONENT  bdfdriver
 
 
   typedef struct  BDF_CMapRec_
@@ -99,14 +99,17 @@ THE SOFTWARE.
 
     min = 0;
     max = cmap->num_encodings;
+    mid = ( min + max ) >> 1;
 
     while ( min < max )
     {
       FT_ULong  code;
 
 
-      mid  = ( min + max ) >> 1;
-      code = (FT_ULong)encodings[mid].enc;
+      if ( mid > max || mid < min )
+        mid = ( min + max ) >> 1;
+
+      code = encodings[mid].enc;
 
       if ( charcode == code )
       {
@@ -120,6 +123,9 @@ THE SOFTWARE.
         max = mid;
       else
         min = mid + 1;
+
+      /* prediction in a continuous block */
+      mid += charcode - code;
     }
 
     return result;
@@ -139,14 +145,17 @@ THE SOFTWARE.
 
     min = 0;
     max = cmap->num_encodings;
+    mid = ( min + max ) >> 1;
 
     while ( min < max )
     {
       FT_ULong  code; /* same as BDF_encoding_el.enc */
 
 
-      mid  = ( min + max ) >> 1;
-      code = (FT_ULong)encodings[mid].enc;
+      if ( mid > max || mid < min )
+        mid = ( min + max ) >> 1;
+
+      code = encodings[mid].enc;
 
       if ( charcode == code )
       {
@@ -160,12 +169,15 @@ THE SOFTWARE.
         max = mid;
       else
         min = mid + 1;
+
+      /* prediction in a continuous block */
+      mid += charcode - code;
     }
 
     charcode = 0;
     if ( min < cmap->num_encodings )
     {
-      charcode = (FT_ULong)encodings[min].enc;
+      charcode = encodings[min].enc;
       result   = encodings[min].glyph + 1;
     }
 
@@ -401,8 +413,7 @@ THE SOFTWARE.
       bdfface->face_index = 0;
 
       bdfface->face_flags |= FT_FACE_FLAG_FIXED_SIZES |
-                             FT_FACE_FLAG_HORIZONTAL  |
-                             FT_FACE_FLAG_FAST_GLYPHS;
+                             FT_FACE_FLAG_HORIZONTAL;
 
       prop = bdf_get_font_property( font, "SPACING" );
       if ( prop && prop->format == BDF_ATOM                             &&
@@ -863,7 +874,7 @@ THE SOFTWARE.
 
  /*
   *
-  *  BDF SERVICE
+  * BDF SERVICE
   *
   */
 
@@ -939,7 +950,7 @@ THE SOFTWARE.
 
  /*
   *
-  *  SERVICES LIST
+  * SERVICES LIST
   *
   */
 
diff --git a/thirdparty/freetype/src/bdf/bdfdrivr.h b/thirdparty/freetype/src/bdf/bdfdrivr.h
index 94550818c1..b37b84ea31 100644
--- a/thirdparty/freetype/src/bdf/bdfdrivr.h
+++ b/thirdparty/freetype/src/bdf/bdfdrivr.h
@@ -36,14 +36,10 @@ THE SOFTWARE.
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
 
   typedef struct  BDF_encoding_el_
   {
-    FT_Long    enc;
+    FT_ULong   enc;
     FT_UShort  glyph;
 
   } BDF_encoding_el;
@@ -60,9 +56,6 @@ FT_BEGIN_HEADER
 
     BDF_encoding_el*  en_table;
 
-    FT_CharMap        charmap_handle;
-    FT_CharMapRec     charmap;  /* a single charmap per face */
-
     FT_UInt           default_glyph;
 
   } BDF_FaceRec, *BDF_Face;
diff --git a/thirdparty/freetype/src/bdf/bdferror.h b/thirdparty/freetype/src/bdf/bdferror.h
index b462c7d3b5..dbe41c02ab 100644
--- a/thirdparty/freetype/src/bdf/bdferror.h
+++ b/thirdparty/freetype/src/bdf/bdferror.h
@@ -20,11 +20,11 @@
  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the BDF error enumeration constants.      */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * This file is used to define the BDF error enumeration constants.
+   *
+   */
 
 #ifndef BDFERROR_H_
 #define BDFERROR_H_
diff --git a/thirdparty/freetype/src/bdf/bdflib.c b/thirdparty/freetype/src/bdf/bdflib.c
index 2f5c99d544..0898b0d470 100644
--- a/thirdparty/freetype/src/bdf/bdflib.c
+++ b/thirdparty/freetype/src/bdf/bdflib.c
@@ -22,13 +22,13 @@
  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  This file is based on bdf.c,v 1.22 2000/03/16 20:08:50               */
-  /*                                                                       */
-  /*  taken from Mark Leisher's xmbdfed package                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * This file is based on bdf.c,v 1.22 2000/03/16 20:08:50
+   *
+   * taken from Mark Leisher's xmbdfed package
+   *
+   */
 
 
 #include <ft2build.h>
@@ -42,21 +42,21 @@
 #include "bdferror.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_bdflib
+#define FT_COMPONENT  bdflib
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Default BDF font options.                                             */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Default BDF font options.
+   *
+   */
 
 
   static const bdf_options_t  _bdf_opts =
@@ -68,11 +68,11 @@
   };
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Builtin BDF font properties.                                          */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Builtin BDF font properties.
+   *
+   */
 
   /* List of most properties that might appear in a font.  Doesn't include */
   /* the RAW_* and AXIS_* properties in X11R6 polymorphic fonts.           */
@@ -196,11 +196,10 @@
 #define ACMSG9   "SWIDTH field missing at line %ld.  Set automatically.\n"
 #define ACMSG10  "DWIDTH field missing at line %ld.  Set to glyph width.\n"
 #define ACMSG11  "SIZE bits per pixel field adjusted to %hd.\n"
-#define ACMSG12  "Duplicate encoding %ld (%s) changed to unencoded.\n"
-#define ACMSG13  "Glyph %ld extra rows removed.\n"
-#define ACMSG14  "Glyph %ld extra columns removed.\n"
+#define ACMSG13  "Glyph %lu extra rows removed.\n"
+#define ACMSG14  "Glyph %lu extra columns removed.\n"
 #define ACMSG15  "Incorrect glyph count: %ld indicated but %ld found.\n"
-#define ACMSG16  "Glyph %ld missing columns padded with zero bits.\n"
+#define ACMSG16  "Glyph %lu missing columns padded with zero bits.\n"
 #define ACMSG17  "Adjusting number of glyphs to %ld.\n"
 
   /* Error messages. */
@@ -219,11 +218,11 @@
 #define DBGMSG2  " (0x%lX)\n"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Utility types and functions.                                          */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Utility types and functions.
+   *
+   */
 
 
   /* Function type for parsing lines of a BDF font. */
@@ -270,8 +269,6 @@
     bdf_font_t*     font;
     bdf_options_t*  opts;
 
-    unsigned long   have[34816]; /* must be in sync with `nmod' and `umod' */
-                                 /* arrays from `bdf_font_t' structure     */
     _bdf_list_t     list;
 
     FT_Memory       memory;
@@ -900,11 +897,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* BDF font file parsing flags and functions.                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * BDF font file parsing flags and functions.
+   *
+   */
 
 
   /* Parse flags. */
@@ -1232,7 +1229,7 @@
     /* present, and the SPACING property should override the default       */
     /* spacing.                                                            */
     if ( _bdf_strncmp( name, "DEFAULT_CHAR", 12 ) == 0 )
-      font->default_char = fp->value.l;
+      font->default_char = fp->value.ul;
     else if ( _bdf_strncmp( name, "FONT_ASCENT", 11 ) == 0 )
       font->font_ascent = fp->value.l;
     else if ( _bdf_strncmp( name, "FONT_DESCENT", 12 ) == 0 )
@@ -1265,6 +1262,25 @@
   };
 
 
+  static FT_Error
+  _bdf_parse_end( char*          line,
+                  unsigned long  linelen,
+                  unsigned long  lineno,
+                  void*          call_data,
+                  void*          client_data )
+  {
+    /* a no-op; we ignore everything after `ENDFONT' */
+
+    FT_UNUSED( line );
+    FT_UNUSED( linelen );
+    FT_UNUSED( lineno );
+    FT_UNUSED( call_data );
+    FT_UNUSED( client_data );
+
+    return FT_Err_Ok;
+  }
+
+
   /* Actually parse the glyph info and bitmaps. */
   static FT_Error
   _bdf_parse_glyphs( char*          line,
@@ -1278,6 +1294,7 @@
     unsigned char*     bp;
     unsigned long      i, slen, nibbles;
 
+    _bdf_line_func_t*  next;
     _bdf_parse_t*      p;
     bdf_glyph_t*       glyph;
     bdf_font_t*        font;
@@ -1285,11 +1302,11 @@
     FT_Memory          memory;
     FT_Error           error = FT_Err_Ok;
 
-    FT_UNUSED( call_data );
     FT_UNUSED( lineno );        /* only used in debug mode */
 
 
-    p = (_bdf_parse_t *)client_data;
+    next = (_bdf_line_func_t *)call_data;
+    p    = (_bdf_parse_t *)    client_data;
 
     font   = p->font;
     memory = font->memory;
@@ -1370,6 +1387,7 @@
                 by_encoding );
 
       p->flags &= ~BDF_START_;
+      *next     = _bdf_parse_end;
 
       goto Exit;
     }
@@ -1458,40 +1476,11 @@
       if ( p->glyph_enc == -1 && p->list.used > 2 )
         p->glyph_enc = _bdf_atol( p->list.field[2] );
 
-      if ( p->glyph_enc < -1 )
+      if ( p->glyph_enc < -1 || p->glyph_enc >= 0x110000L )
         p->glyph_enc = -1;
 
       FT_TRACE4(( DBGMSG2, p->glyph_enc ));
 
-      /* Check that the encoding is in the Unicode range because  */
-      /* otherwise p->have (a bitmap with static size) overflows. */
-      if ( p->glyph_enc > 0                                      &&
-           (size_t)p->glyph_enc >= sizeof ( p->have ) /
-                                   sizeof ( unsigned long ) * 32 )
-      {
-        FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG5, lineno, "ENCODING" ));
-        error = FT_THROW( Invalid_File_Format );
-        goto Exit;
-      }
-
-      /* Check whether this encoding has already been encountered. */
-      /* If it has then change it to unencoded so it gets added if */
-      /* indicated.                                                */
-      if ( p->glyph_enc >= 0 )
-      {
-        if ( _bdf_glyph_modified( p->have, p->glyph_enc ) )
-        {
-          /* Emit a message saying a glyph has been moved to the */
-          /* unencoded area.                                     */
-          FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG12,
-                      p->glyph_enc, p->glyph_name ));
-          p->glyph_enc = -1;
-          font->modified = 1;
-        }
-        else
-          _bdf_set_glyph_modified( p->have, p->glyph_enc );
-      }
-
       if ( p->glyph_enc >= 0 )
       {
         /* Make sure there are enough glyphs allocated in case the */
@@ -1508,7 +1497,7 @@
 
         glyph           = font->glyphs + font->glyphs_used++;
         glyph->name     = p->glyph_name;
-        glyph->encoding = p->glyph_enc;
+        glyph->encoding = (unsigned long)p->glyph_enc;
 
         /* Reset the initial glyph info. */
         p->glyph_name = NULL;
@@ -1532,7 +1521,7 @@
 
           glyph           = font->unencoded + font->unencoded_used;
           glyph->name     = p->glyph_name;
-          glyph->encoding = (long)font->unencoded_used++;
+          glyph->encoding = font->unencoded_used++;
 
           /* Reset the initial glyph info. */
           p->glyph_name = NULL;
@@ -1556,6 +1545,9 @@
       goto Exit;
     }
 
+    if ( !( p->flags & BDF_ENCODING_ ) )
+      goto Missing_Encoding;
+
     /* Point at the glyph being constructed. */
     if ( p->glyph_enc == -1 )
       glyph = font->unencoded + ( font->unencoded_used - 1 );
@@ -1573,7 +1565,6 @@
         {
           FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG13, glyph->encoding ));
           p->flags |= BDF_GLYPH_HEIGHT_CHECK_;
-          font->modified = 1;
         }
 
         goto Exit;
@@ -1601,7 +1592,6 @@
       {
         FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG16, glyph->encoding ));
         p->flags       |= BDF_GLYPH_WIDTH_CHECK_;
-        font->modified  = 1;
       }
 
       /* Remove possible garbage at the right. */
@@ -1616,7 +1606,6 @@
       {
         FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG14, glyph->encoding ));
         p->flags       |= BDF_GLYPH_WIDTH_CHECK_;
-        font->modified  = 1;
       }
 
       p->row++;
@@ -1626,9 +1615,6 @@
     /* Expect the SWIDTH (scalable width) field next. */
     if ( _bdf_strncmp( line, "SWIDTH", 6 ) == 0 )
     {
-      if ( !( p->flags & BDF_ENCODING_ ) )
-        goto Missing_Encoding;
-
       error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
       if ( error )
         goto Exit;
@@ -1642,9 +1628,6 @@
     /* Expect the DWIDTH (scalable width) field next. */
     if ( _bdf_strncmp( line, "DWIDTH", 6 ) == 0 )
     {
-      if ( !( p->flags & BDF_ENCODING_ ) )
-        goto Missing_Encoding;
-
       error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
       if ( error )
         goto Exit;
@@ -1670,9 +1653,6 @@
     /* Expect the BBX field next. */
     if ( _bdf_strncmp( line, "BBX", 3 ) == 0 )
     {
-      if ( !( p->flags & BDF_ENCODING_ ) )
-        goto Missing_Encoding;
-
       error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
       if ( error )
         goto Exit;
@@ -1720,14 +1700,7 @@
         {
           glyph->swidth = sw;
 
-          if ( p->glyph_enc == -1 )
-            _bdf_set_glyph_modified( font->umod,
-                                     font->unencoded_used - 1 );
-          else
-            _bdf_set_glyph_modified( font->nmod, glyph->encoding );
-
           p->flags       |= BDF_SWIDTH_ADJ_;
-          font->modified  = 1;
         }
       }
 
@@ -1829,7 +1802,6 @@
           goto Exit;
 
         FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent ));
-        p->font->modified = 1;
       }
 
       if ( bdf_get_font_property( p->font, "FONT_DESCENT" ) == 0 )
@@ -1842,7 +1814,6 @@
           goto Exit;
 
         FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent ));
-        p->font->modified = 1;
       }
 
       p->flags &= ~BDF_PROPS_;
@@ -1989,7 +1960,7 @@
       if ( error )
         goto Exit;
       p->font->spacing      = p->opts->font_spacing;
-      p->font->default_char = -1;
+      p->font->default_char = ~0UL;
 
       goto Exit;
     }
@@ -2179,8 +2150,6 @@
         goto Exit;
       FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent ));
 
-      p->font->modified = 1;
-
       *next = _bdf_parse_glyphs;
 
       /* A special return value. */
@@ -2196,11 +2165,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* API.                                                                  */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * API.
+   *
+   */
 
 
   FT_LOCAL_DEF( FT_Error )
@@ -2246,7 +2215,6 @@
       {
         FT_TRACE2(( "bdf_load_font: " ACMSG15, p->cnt,
                     p->font->glyphs_used + p->font->unencoded_used ));
-        p->font->modified = 1;
       }
 
       /* Once the font has been loaded, adjust the overall font metrics if */
@@ -2259,7 +2227,6 @@
           FT_TRACE2(( "bdf_load_font: " ACMSG3,
                       p->font->bbx.width, p->maxrb - p->minlb ));
           p->font->bbx.width = (unsigned short)( p->maxrb - p->minlb );
-          p->font->modified  = 1;
         }
 
         if ( p->font->bbx.x_offset != p->minlb )
@@ -2267,7 +2234,6 @@
           FT_TRACE2(( "bdf_load_font: " ACMSG4,
                       p->font->bbx.x_offset, p->minlb ));
           p->font->bbx.x_offset = p->minlb;
-          p->font->modified     = 1;
         }
 
         if ( p->font->bbx.ascent != p->maxas )
@@ -2275,7 +2241,6 @@
           FT_TRACE2(( "bdf_load_font: " ACMSG5,
                       p->font->bbx.ascent, p->maxas ));
           p->font->bbx.ascent = p->maxas;
-          p->font->modified   = 1;
         }
 
         if ( p->font->bbx.descent != p->maxds )
@@ -2284,7 +2249,6 @@
                       p->font->bbx.descent, p->maxds ));
           p->font->bbx.descent  = p->maxds;
           p->font->bbx.y_offset = (short)( -p->maxds );
-          p->font->modified     = 1;
         }
 
         if ( p->maxas + p->maxds != p->font->bbx.height )
@@ -2415,16 +2379,6 @@
     FT_FREE( font->glyphs );
     FT_FREE( font->unencoded );
 
-    /* Free up the overflow storage if it was used. */
-    for ( i = 0, glyphs = font->overflow.glyphs;
-          i < font->overflow.glyphs_used; i++, glyphs++ )
-    {
-      FT_FREE( glyphs->name );
-      FT_FREE( glyphs->bitmap );
-    }
-
-    FT_FREE( font->overflow.glyphs );
-
     /* bdf_cleanup */
     ft_hash_str_free( &(font->proptbl), memory );
 
diff --git a/thirdparty/freetype/src/bzip2/ftbzip2.c b/thirdparty/freetype/src/bzip2/ftbzip2.c
index 16019485a9..1fda59b60c 100644
--- a/thirdparty/freetype/src/bzip2/ftbzip2.c
+++ b/thirdparty/freetype/src/bzip2/ftbzip2.c
@@ -1,25 +1,25 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftbzip2.c                                                              */
-/*                                                                         */
-/*    FreeType support for .bz2 compressed files.                          */
-/*                                                                         */
-/*  This optional component relies on libbz2.  It should mainly be used to */
-/*  parse compressed PCF fonts, as found with many X11 server              */
-/*  distributions.                                                         */
-/*                                                                         */
-/*  Copyright 2010-2018 by                                                 */
-/*  Joel Klinghed.                                                         */
-/*                                                                         */
-/*  based on `src/gzip/ftgzip.c'                                           */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftbzip2.c
+ *
+ *   FreeType support for .bz2 compressed files.
+ *
+ * This optional component relies on libbz2.  It should mainly be used to
+ * parse compressed PCF fonts, as found with many X11 server
+ * distributions.
+ *
+ * Copyright (C) 2010-2019 by
+ * Joel Klinghed.
+ *
+ * based on `src/gzip/ftgzip.c'
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -43,10 +43,6 @@
 
 #ifdef FT_CONFIG_OPTION_USE_BZIP2
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "bzip2 code does not support PIC yet"
-#endif
-
 #define BZ_NO_STDIO /* Do not need FILE */
 #include <bzlib.h>
 
@@ -475,8 +471,8 @@
     memory = source->memory;
 
     /*
-     *  check the header right now; this prevents allocating unnecessary
-     *  objects when we don't need them
+     * check the header right now; this prevents allocating unnecessary
+     * objects when we don't need them
      */
     error = ft_bzip2_check_header( source );
     if ( error )
diff --git a/thirdparty/freetype/src/bzip2/rules.mk b/thirdparty/freetype/src/bzip2/rules.mk
index 95954d7520..f365c1f76d 100644
--- a/thirdparty/freetype/src/bzip2/rules.mk
+++ b/thirdparty/freetype/src/bzip2/rules.mk
@@ -2,7 +2,7 @@
 # FreeType 2 BZIP2 support configuration rules
 #
 
-# Copyright 2010-2018 by
+# Copyright (C) 2010-2019 by
 # Joel Klinghed.
 #
 # based on `src/lzw/rules.mk'
diff --git a/thirdparty/freetype/src/cache/ftcache.c b/thirdparty/freetype/src/cache/ftcache.c
index 1b425af911..a6a3e63ef0 100644
--- a/thirdparty/freetype/src/cache/ftcache.c
+++ b/thirdparty/freetype/src/cache/ftcache.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcache.c                                                              */
-/*                                                                         */
-/*    The FreeType Caching sub-system (body only).                         */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcache.c
+ *
+ *   The FreeType Caching sub-system (body only).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/cache/ftcbasic.c b/thirdparty/freetype/src/cache/ftcbasic.c
index 994aa12286..a473585ebc 100644
--- a/thirdparty/freetype/src/cache/ftcbasic.c
+++ b/thirdparty/freetype/src/cache/ftcbasic.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcbasic.c                                                             */
-/*                                                                         */
-/*    The FreeType basic cache interface (body).                           */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcbasic.c
+ *
+ *   The FreeType basic cache interface (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -27,11 +27,11 @@
 #include "ftccback.h"
 #include "ftcerror.h"
 
-#define FT_COMPONENT  trace_cache
+#define FT_COMPONENT  cache
 
 
   /*
-   *  Basic Families
+   * Basic Families
    *
    */
   typedef struct  FTC_BasicAttrRec_
diff --git a/thirdparty/freetype/src/cache/ftccache.c b/thirdparty/freetype/src/cache/ftccache.c
index 12ec585a25..f38ca44ddd 100644
--- a/thirdparty/freetype/src/cache/ftccache.c
+++ b/thirdparty/freetype/src/cache/ftccache.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftccache.c                                                             */
-/*                                                                         */
-/*    The FreeType internal cache interface (body).                        */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftccache.c
+ *
+ *   The FreeType internal cache interface (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -25,7 +25,7 @@
 #include "ftcerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cache
+#define FT_COMPONENT  cache
 
 
 #define FTC_HASH_MAX_LOAD  2
diff --git a/thirdparty/freetype/src/cache/ftccache.h b/thirdparty/freetype/src/cache/ftccache.h
index 859c547e46..140ceadb11 100644
--- a/thirdparty/freetype/src/cache/ftccache.h
+++ b/thirdparty/freetype/src/cache/ftccache.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftccache.h                                                             */
-/*                                                                         */
-/*    FreeType internal cache interface (specification).                   */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftccache.h
+ *
+ *   FreeType internal cache interface (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTCCACHE_H_
@@ -42,17 +42,17 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Each cache controls one or more cache nodes.  Each node is part of    */
-  /* the global_lru list of the manager.  Its `data' field however is used */
-  /* as a reference count for now.                                         */
-  /*                                                                       */
-  /* A node can be anything, depending on the type of information held by  */
-  /* the cache.  It can be an individual glyph image, a set of bitmaps     */
-  /* glyphs for a given size, some metrics, etc.                           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Each cache controls one or more cache nodes.  Each node is part of
+   * the global_lru list of the manager.  Its `data' field however is used
+   * as a reference count for now.
+   *
+   * A node can be anything, depending on the type of information held by
+   * the cache.  It can be an individual glyph image, a set of bitmaps
+   * glyphs for a given size, some metrics, etc.
+   *
+   */
 
   /* structure size should be 20 bytes on 32-bits machines */
   typedef struct  FTC_NodeRec_
@@ -302,11 +302,11 @@ FT_BEGIN_HEADER
    *
    * Example:
    *
-   *   {
-   *     FTC_CACHE_TRYLOOP( cache )
-   *       error = load_data( ... );
-   *     FTC_CACHE_TRYLOOP_END()
-   *   }
+   * {
+   *   FTC_CACHE_TRYLOOP( cache )
+   *     error = load_data( ... );
+   *   FTC_CACHE_TRYLOOP_END()
+   * }
    *
    */
 #define FTC_CACHE_TRYLOOP( cache )                           \
diff --git a/thirdparty/freetype/src/cache/ftccback.h b/thirdparty/freetype/src/cache/ftccback.h
index e51d8d6e55..9321bc3d4e 100644
--- a/thirdparty/freetype/src/cache/ftccback.h
+++ b/thirdparty/freetype/src/cache/ftccback.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftccback.h                                                             */
-/*                                                                         */
-/*    Callback functions of the caching sub-system (specification only).   */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftccback.h
+ *
+ *   Callback functions of the caching sub-system (specification only).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #ifndef FTCCBACK_H_
 #define FTCCBACK_H_
diff --git a/thirdparty/freetype/src/cache/ftccmap.c b/thirdparty/freetype/src/cache/ftccmap.c
index d20b0f48fe..76ba10e3e9 100644
--- a/thirdparty/freetype/src/cache/ftccmap.c
+++ b/thirdparty/freetype/src/cache/ftccmap.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftccmap.c                                                              */
-/*                                                                         */
-/*    FreeType CharMap cache (body)                                        */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftccmap.c
+ *
+ *   FreeType CharMap cache (body)
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -28,21 +28,21 @@
 #include "ftcerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cache
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Each FTC_CMapNode contains a simple array to map a range of character */
-  /* codes to equivalent glyph indices.                                    */
-  /*                                                                       */
-  /* For now, the implementation is very basic: Each node maps a range of  */
-  /* 128 consecutive character codes to their corresponding glyph indices. */
-  /*                                                                       */
-  /* We could do more complex things, but I don't think it is really very  */
-  /* useful.                                                               */
-  /*                                                                       */
-  /*************************************************************************/
+#define FT_COMPONENT  cache
+
+
+  /**************************************************************************
+   *
+   * Each FTC_CMapNode contains a simple array to map a range of character
+   * codes to equivalent glyph indices.
+   *
+   * For now, the implementation is very basic: Each node maps a range of
+   * 128 consecutive character codes to their corresponding glyph indices.
+   *
+   * We could do more complex things, but I don't think it is really very
+   * useful.
+   *
+   */
 
 
   /* number of glyph indices / character code per node */
diff --git a/thirdparty/freetype/src/cache/ftcerror.h b/thirdparty/freetype/src/cache/ftcerror.h
index a26cd5935b..e2d6417180 100644
--- a/thirdparty/freetype/src/cache/ftcerror.h
+++ b/thirdparty/freetype/src/cache/ftcerror.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcerror.h                                                             */
-/*                                                                         */
-/*    Caching sub-system error codes (specification only).                 */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the caching sub-system error enumeration  */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftcerror.h
+ *
+ *   Caching sub-system error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the caching sub-system error enumeration
+   * constants.
+   *
+   */
 
 #ifndef FTCERROR_H_
 #define FTCERROR_H_
diff --git a/thirdparty/freetype/src/cache/ftcglyph.c b/thirdparty/freetype/src/cache/ftcglyph.c
index 782cc0ed09..2a0e97d4af 100644
--- a/thirdparty/freetype/src/cache/ftcglyph.c
+++ b/thirdparty/freetype/src/cache/ftcglyph.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcglyph.c                                                             */
-/*                                                                         */
-/*    FreeType Glyph Image (FT_Glyph) cache (body).                        */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcglyph.c
+ *
+ *   FreeType Glyph Image (FT_Glyph) cache (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/cache/ftcglyph.h b/thirdparty/freetype/src/cache/ftcglyph.h
index 23c24d223f..5a1f0e2a74 100644
--- a/thirdparty/freetype/src/cache/ftcglyph.h
+++ b/thirdparty/freetype/src/cache/ftcglyph.h
@@ -1,101 +1,101 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcglyph.h                                                             */
-/*                                                                         */
-/*    FreeType abstract glyph cache (specification).                       */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcglyph.h
+ *
+ *   FreeType abstract glyph cache (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /*
    *
-   *  FTC_GCache is an _abstract_ cache object optimized to store glyph
-   *  data.  It works as follows:
+   * FTC_GCache is an _abstract_ cache object optimized to store glyph
+   * data.  It works as follows:
    *
-   *   - It manages FTC_GNode objects. Each one of them can hold one or more
-   *     glyph `items'.  Item types are not specified in the FTC_GCache but
-   *     in classes that extend it.
+   * - It manages FTC_GNode objects. Each one of them can hold one or more
+   *   glyph `items'.  Item types are not specified in the FTC_GCache but
+   *   in classes that extend it.
    *
-   *   - Glyph attributes, like face ID, character size, render mode, etc.,
-   *     can be grouped into abstract `glyph families'.  This avoids storing
-   *     the attributes within the FTC_GCache, since it is likely that many
-   *     FTC_GNodes will belong to the same family in typical uses.
+   * - Glyph attributes, like face ID, character size, render mode, etc.,
+   *   can be grouped into abstract `glyph families'.  This avoids storing
+   *   the attributes within the FTC_GCache, since it is likely that many
+   *   FTC_GNodes will belong to the same family in typical uses.
    *
-   *   - Each FTC_GNode is thus an FTC_Node with two additional fields:
+   * - Each FTC_GNode is thus an FTC_Node with two additional fields:
    *
-   *       * gindex: A glyph index, or the first index in a glyph range.
-   *       * family: A pointer to a glyph `family'.
+   *   * gindex: A glyph index, or the first index in a glyph range.
+   *   * family: A pointer to a glyph `family'.
    *
-   *   - Family types are not fully specific in the FTC_Family type, but
-   *     by classes that extend it.
+   * - Family types are not fully specific in the FTC_Family type, but
+   *   by classes that extend it.
    *
-   *  Note that both FTC_ImageCache and FTC_SBitCache extend FTC_GCache.
-   *  They share an FTC_Family sub-class called FTC_BasicFamily which is
-   *  used to store the following data: face ID, pixel/point sizes, load
-   *  flags.  For more details see the file `src/cache/ftcbasic.c'.
+   * Note that both FTC_ImageCache and FTC_SBitCache extend FTC_GCache.
+   * They share an FTC_Family sub-class called FTC_BasicFamily which is
+   * used to store the following data: face ID, pixel/point sizes, load
+   * flags.  For more details see the file `src/cache/ftcbasic.c'.
    *
-   *  Client applications can extend FTC_GNode with their own FTC_GNode
-   *  and FTC_Family sub-classes to implement more complex caches (e.g.,
-   *  handling automatic synthesis, like obliquing & emboldening, colored
-   *  glyphs, etc.).
+   * Client applications can extend FTC_GNode with their own FTC_GNode
+   * and FTC_Family sub-classes to implement more complex caches (e.g.,
+   * handling automatic synthesis, like obliquing & emboldening, colored
+   * glyphs, etc.).
    *
-   *  See also the FTC_ICache & FTC_SCache classes in `ftcimage.h' and
-   *  `ftcsbits.h', which both extend FTC_GCache with additional
-   *  optimizations.
+   * See also the FTC_ICache & FTC_SCache classes in `ftcimage.h' and
+   * `ftcsbits.h', which both extend FTC_GCache with additional
+   * optimizations.
    *
-   *  A typical FTC_GCache implementation must provide at least the
-   *  following:
+   * A typical FTC_GCache implementation must provide at least the
+   * following:
    *
-   *  - FTC_GNode sub-class, e.g. MyNode, with relevant methods:
-   *        my_node_new            (must call FTC_GNode_Init)
-   *        my_node_free           (must call FTC_GNode_Done)
-   *        my_node_compare        (must call FTC_GNode_Compare)
-   *        my_node_remove_faceid  (must call ftc_gnode_unselect in case
-   *                                of match)
+   * - FTC_GNode sub-class, e.g. MyNode, with relevant methods:
+   *     my_node_new            (must call FTC_GNode_Init)
+   *     my_node_free           (must call FTC_GNode_Done)
+   *     my_node_compare        (must call FTC_GNode_Compare)
+   *     my_node_remove_faceid  (must call ftc_gnode_unselect in case
+   *                             of match)
    *
-   *  - FTC_Family sub-class, e.g. MyFamily, with relevant methods:
-   *        my_family_compare
-   *        my_family_init
-   *        my_family_reset (optional)
-   *        my_family_done
+   * - FTC_Family sub-class, e.g. MyFamily, with relevant methods:
+   *     my_family_compare
+   *     my_family_init
+   *     my_family_reset (optional)
+   *     my_family_done
    *
-   *  - FTC_GQuery sub-class, e.g. MyQuery, to hold cache-specific query
-   *    data.
+   * - FTC_GQuery sub-class, e.g. MyQuery, to hold cache-specific query
+   *   data.
    *
-   *  - Constant structures for a FTC_GNodeClass.
+   * - Constant structures for a FTC_GNodeClass.
    *
-   *  - MyCacheNew() can be implemented easily as a call to the convenience
-   *    function FTC_GCache_New.
+   * - MyCacheNew() can be implemented easily as a call to the convenience
+   *   function FTC_GCache_New.
    *
-   *  - MyCacheLookup with a call to FTC_GCache_Lookup.  This function will
-   *    automatically:
+   * - MyCacheLookup with a call to FTC_GCache_Lookup.  This function will
+   *   automatically:
    *
-   *    - Search for the corresponding family in the cache, or create
-   *      a new one if necessary.  Put it in FTC_GQUERY(myquery).family
+   *   - Search for the corresponding family in the cache, or create
+   *     a new one if necessary.  Put it in FTC_GQUERY(myquery).family
    *
-   *    - Call FTC_Cache_Lookup.
+   *   - Call FTC_Cache_Lookup.
    *
-   *    If it returns NULL, you should create a new node, then call
-   *    ftc_cache_add as usual.
+   *   If it returns NULL, you should create a new node, then call
+   *   ftc_cache_add as usual.
    */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Important: The functions defined in this file are only used to        */
-  /*            implement an abstract glyph cache class.  You need to      */
-  /*            provide additional logic to implement a complete cache.    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Important: The functions defined in this file are only used to
+   *            implement an abstract glyph cache class.  You need to
+   *            provide additional logic to implement a complete cache.
+   *
+   */
 
 
   /*************************************************************************/
@@ -125,11 +125,11 @@ FT_BEGIN_HEADER
 
 
  /*
-  *  We can group glyphs into `families'.  Each family correspond to a
-  *  given face ID, character size, transform, etc.
+  * We can group glyphs into `families'.  Each family correspond to a
+  * given face ID, character size, transform, etc.
   *
-  *  Families are implemented as MRU list nodes.  They are
-  *  reference-counted.
+  * Families are implemented as MRU list nodes.  They are
+  * reference-counted.
   */
 
   typedef struct  FTC_FamilyRec_
@@ -167,12 +167,12 @@ FT_BEGIN_HEADER
 #define FTC_GQUERY( x )  ( (FTC_GQuery)(x) )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* These functions are exported so that they can be called from          */
-  /* user-provided cache classes; otherwise, they are really part of the   */
-  /* cache sub-system internals.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * These functions are exported so that they can be called from
+   * user-provided cache classes; otherwise, they are really part of the
+   * cache sub-system internals.
+   */
 
   /* must be called by derived FTC_Node_InitFunc routines */
   FT_LOCAL( void )
diff --git a/thirdparty/freetype/src/cache/ftcimage.c b/thirdparty/freetype/src/cache/ftcimage.c
index 77a100153e..9e64d51a22 100644
--- a/thirdparty/freetype/src/cache/ftcimage.c
+++ b/thirdparty/freetype/src/cache/ftcimage.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcimage.c                                                             */
-/*                                                                         */
-/*    FreeType Image cache (body).                                         */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcimage.c
+ *
+ *   FreeType Image cache (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/cache/ftcimage.h b/thirdparty/freetype/src/cache/ftcimage.h
index 24a221053b..dcb101fabc 100644
--- a/thirdparty/freetype/src/cache/ftcimage.h
+++ b/thirdparty/freetype/src/cache/ftcimage.h
@@ -1,35 +1,35 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcimage.h                                                             */
-/*                                                                         */
-/*    FreeType Generic Image cache (specification)                         */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcimage.h
+ *
+ *   FreeType Generic Image cache (specification)
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
  /*
-  *  FTC_ICache is an _abstract_ cache used to store a single FT_Glyph
-  *  image per cache node.
+  * FTC_ICache is an _abstract_ cache used to store a single FT_Glyph
+  * image per cache node.
   *
-  *  FTC_ICache extends FTC_GCache.  For an implementation example,
-  *  see FTC_ImageCache in `src/cache/ftbasic.c'.
+  * FTC_ICache extends FTC_GCache.  For an implementation example,
+  * see FTC_ImageCache in `src/cache/ftbasic.c'.
   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Each image cache really manages FT_Glyph objects.                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Each image cache really manages FT_Glyph objects.
+   *
+   */
 
 
 #ifndef FTCIMAGE_H_
diff --git a/thirdparty/freetype/src/cache/ftcmanag.c b/thirdparty/freetype/src/cache/ftcmanag.c
index 2bcd9df502..bd585968e3 100644
--- a/thirdparty/freetype/src/cache/ftcmanag.c
+++ b/thirdparty/freetype/src/cache/ftcmanag.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcmanag.c                                                             */
-/*                                                                         */
-/*    FreeType Cache Manager (body).                                       */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcmanag.c
+ *
+ *   FreeType Cache Manager (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,13 +26,9 @@
 #include "ftccback.h"
 #include "ftcerror.h"
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "cache system does not support PIC yet"
-#endif
-
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cache
+#define FT_COMPONENT  cache
 
 
   static FT_Error
diff --git a/thirdparty/freetype/src/cache/ftcmanag.h b/thirdparty/freetype/src/cache/ftcmanag.h
index b4b4755356..60c66c8fc8 100644
--- a/thirdparty/freetype/src/cache/ftcmanag.h
+++ b/thirdparty/freetype/src/cache/ftcmanag.h
@@ -1,47 +1,47 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcmanag.h                                                             */
-/*                                                                         */
-/*    FreeType Cache Manager (specification).                              */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* A cache manager is in charge of the following:                        */
-  /*                                                                       */
-  /*  - Maintain a mapping between generic FTC_FaceIDs and live FT_Face    */
-  /*    objects.  The mapping itself is performed through a user-provided  */
-  /*    callback.  However, the manager maintains a small cache of FT_Face */
-  /*    and FT_Size objects in order to speed up things considerably.      */
-  /*                                                                       */
-  /*  - Manage one or more cache objects.  Each cache is in charge of      */
-  /*    holding a varying number of `cache nodes'.  Each cache node        */
-  /*    represents a minimal amount of individually accessible cached      */
-  /*    data.  For example, a cache node can be an FT_Glyph image          */
-  /*    containing a vector outline, or some glyph metrics, or anything    */
-  /*    else.                                                              */
-  /*                                                                       */
-  /*    Each cache node has a certain size in bytes that is added to the   */
-  /*    total amount of `cache memory' within the manager.                 */
-  /*                                                                       */
-  /*    All cache nodes are located in a global LRU list, where the oldest */
-  /*    node is at the tail of the list.                                   */
-  /*                                                                       */
-  /*    Each node belongs to a single cache, and includes a reference      */
-  /*    count to avoid destroying it (due to caching).                     */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftcmanag.h
+ *
+ *   FreeType Cache Manager (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * A cache manager is in charge of the following:
+   *
+   * - Maintain a mapping between generic FTC_FaceIDs and live FT_Face
+   *   objects.  The mapping itself is performed through a user-provided
+   *   callback.  However, the manager maintains a small cache of FT_Face
+   *   and FT_Size objects in order to speed up things considerably.
+   *
+   * - Manage one or more cache objects.  Each cache is in charge of
+   *   holding a varying number of `cache nodes'.  Each cache node
+   *   represents a minimal amount of individually accessible cached
+   *   data.  For example, a cache node can be an FT_Glyph image
+   *   containing a vector outline, or some glyph metrics, or anything
+   *   else.
+   *
+   *   Each cache node has a certain size in bytes that is added to the
+   *   total amount of `cache memory' within the manager.
+   *
+   *   All cache nodes are located in a global LRU list, where the oldest
+   *   node is at the tail of the list.
+   *
+   *   Each node belongs to a single cache, and includes a reference
+   *   count to avoid destroying it (due to caching).
+   *
+   */
 
 
   /*************************************************************************/
@@ -72,12 +72,12 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Section>                                                             */
-  /*    cache_subsystem                                                    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * @Section:
+   *   cache_subsystem
+   *
+   */
 
 
 #define FTC_MAX_FACES_DEFAULT  2
@@ -110,27 +110,28 @@ FT_BEGIN_HEADER
   } FTC_ManagerRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FTC_Manager_Compress                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This function is used to check the state of the cache manager if   */
-  /*    its `num_bytes' field is greater than its `max_bytes' field.  It   */
-  /*    will flush as many old cache nodes as possible (ignoring cache     */
-  /*    nodes with a non-zero reference count).                            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    manager :: A handle to the cache manager.                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Client applications should not call this function directly.  It is */
-  /*    normally invoked by specific cache implementations.                */
-  /*                                                                       */
-  /*    The reason this function is exported is to allow client-specific   */
-  /*    cache classes.                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   FTC_Manager_Compress
+   *
+   * @Description:
+   *   This function is used to check the state of the cache manager if
+   *   its `num_bytes' field is greater than its `max_bytes' field.  It
+   *   will flush as many old cache nodes as possible (ignoring cache
+   *   nodes with a non-zero reference count).
+   *
+   * @InOut:
+   *   manager ::
+   *     A handle to the cache manager.
+   *
+   * @Note:
+   *   Client applications should not call this function directly.  It is
+   *   normally invoked by specific cache implementations.
+   *
+   *   The reason this function is exported is to allow client-specific
+   *   cache classes.
+   */
   FT_LOCAL( void )
   FTC_Manager_Compress( FTC_Manager  manager );
 
diff --git a/thirdparty/freetype/src/cache/ftcmru.c b/thirdparty/freetype/src/cache/ftcmru.c
index 1087be4d89..18a7b80054 100644
--- a/thirdparty/freetype/src/cache/ftcmru.c
+++ b/thirdparty/freetype/src/cache/ftcmru.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcmru.c                                                               */
-/*                                                                         */
-/*    FreeType MRU support (body).                                         */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcmru.c
+ *
+ *   FreeType MRU support (body).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/cache/ftcmru.h b/thirdparty/freetype/src/cache/ftcmru.h
index 82396b917d..58721ed340 100644
--- a/thirdparty/freetype/src/cache/ftcmru.h
+++ b/thirdparty/freetype/src/cache/ftcmru.h
@@ -1,43 +1,43 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcmru.h                                                               */
-/*                                                                         */
-/*    Simple MRU list-cache (specification).                               */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* An MRU is a list that cannot hold more than a certain number of       */
-  /* elements (`max_elements').  All elements in the list are sorted in    */
-  /* least-recently-used order, i.e., the `oldest' element is at the tail  */
-  /* of the list.                                                          */
-  /*                                                                       */
-  /* When doing a lookup (either through `Lookup()' or `Lookup_Node()'),   */
-  /* the list is searched for an element with the corresponding key.  If   */
-  /* it is found, the element is moved to the head of the list and is      */
-  /* returned.                                                             */
-  /*                                                                       */
-  /* If no corresponding element is found, the lookup routine will try to  */
-  /* obtain a new element with the relevant key.  If the list is already   */
-  /* full, the oldest element from the list is discarded and replaced by a */
-  /* new one; a new element is added to the list otherwise.                */
-  /*                                                                       */
-  /* Note that it is possible to pre-allocate the element list nodes.      */
-  /* This is handy if `max_elements' is sufficiently small, as it saves    */
-  /* allocations/releases during the lookup process.                       */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftcmru.h
+ *
+ *   Simple MRU list-cache (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * An MRU is a list that cannot hold more than a certain number of
+   * elements (`max_elements').  All elements in the list are sorted in
+   * least-recently-used order, i.e., the `oldest' element is at the tail
+   * of the list.
+   *
+   * When doing a lookup (either through `Lookup()' or `Lookup_Node()'),
+   * the list is searched for an element with the corresponding key.  If
+   * it is found, the element is moved to the head of the list and is
+   * returned.
+   *
+   * If no corresponding element is found, the lookup routine will try to
+   * obtain a new element with the relevant key.  If the list is already
+   * full, the oldest element from the list is discarded and replaced by a
+   * new one; a new element is added to the list otherwise.
+   *
+   * Note that it is possible to pre-allocate the element list nodes.
+   * This is handy if `max_elements' is sufficiently small, as it saves
+   * allocations/releases during the lookup process.
+   *
+   */
 
 
 #ifndef FTCMRU_H_
diff --git a/thirdparty/freetype/src/cache/ftcsbits.c b/thirdparty/freetype/src/cache/ftcsbits.c
index 018f1ecdb7..06b46c896e 100644
--- a/thirdparty/freetype/src/cache/ftcsbits.c
+++ b/thirdparty/freetype/src/cache/ftcsbits.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcsbits.c                                                             */
-/*                                                                         */
-/*    FreeType sbits manager (body).                                       */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcsbits.c
+ *
+ *   FreeType sbits manager (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -27,7 +27,7 @@
 #include "ftcerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cache
+#define FT_COMPONENT  cache
 
 
   /*************************************************************************/
@@ -91,14 +91,14 @@
 
 
   /*
-   *  This function tries to load a small bitmap within a given FTC_SNode.
-   *  Note that it returns a non-zero error code _only_ in the case of
-   *  out-of-memory condition.  For all other errors (e.g., corresponding
-   *  to a bad font file), this function will mark the sbit as `unavailable'
-   *  and return a value of 0.
+   * This function tries to load a small bitmap within a given FTC_SNode.
+   * Note that it returns a non-zero error code _only_ in the case of
+   * out-of-memory condition.  For all other errors (e.g., corresponding
+   * to a bad font file), this function will mark the sbit as `unavailable'
+   * and return a value of 0.
    *
-   *  You should also read the comment within the @ftc_snode_compare
-   *  function below to see how out-of-memory is handled during a lookup.
+   * You should also read the comment within the @ftc_snode_compare
+   * function below to see how out-of-memory is handled during a lookup.
    */
   static FT_Error
   ftc_snode_load( FTC_SNode    snode,
@@ -347,34 +347,34 @@
 
 
       /*
-       *  The following code illustrates what to do when you want to
-       *  perform operations that may fail within a lookup function.
+       * The following code illustrates what to do when you want to
+       * perform operations that may fail within a lookup function.
        *
-       *  Here, we want to load a small bitmap on-demand; we thus
-       *  need to call the `ftc_snode_load' function which may return
-       *  a non-zero error code only when we are out of memory (OOM).
+       * Here, we want to load a small bitmap on-demand; we thus
+       * need to call the `ftc_snode_load' function which may return
+       * a non-zero error code only when we are out of memory (OOM).
        *
-       *  The correct thing to do is to use @FTC_CACHE_TRYLOOP and
-       *  @FTC_CACHE_TRYLOOP_END in order to implement a retry loop
-       *  that is capable of flushing the cache incrementally when
-       *  an OOM errors occur.
+       * The correct thing to do is to use @FTC_CACHE_TRYLOOP and
+       * @FTC_CACHE_TRYLOOP_END in order to implement a retry loop
+       * that is capable of flushing the cache incrementally when
+       * an OOM errors occur.
        *
-       *  However, we need to `lock' the node before this operation to
-       *  prevent it from being flushed within the loop.
+       * However, we need to `lock' the node before this operation to
+       * prevent it from being flushed within the loop.
        *
-       *  When we exit the loop, we unlock the node, then check the `error'
-       *  variable.  If it is non-zero, this means that the cache was
-       *  completely flushed and that no usable memory was found to load
-       *  the bitmap.
+       * When we exit the loop, we unlock the node, then check the `error'
+       * variable.  If it is non-zero, this means that the cache was
+       * completely flushed and that no usable memory was found to load
+       * the bitmap.
        *
-       *  We then prefer to return a value of 0 (i.e., NO MATCH).  This
-       *  ensures that the caller will try to allocate a new node.
-       *  This operation consequently _fail_ and the lookup function
-       *  returns the appropriate OOM error code.
+       * We then prefer to return a value of 0 (i.e., NO MATCH).  This
+       * ensures that the caller will try to allocate a new node.
+       * This operation consequently _fail_ and the lookup function
+       * returns the appropriate OOM error code.
        *
-       *  Note that `buffer == NULL && width == 255' is a hack used to
-       *  tag `unavailable' bitmaps in the array.  We should never try
-       *  to load these.
+       * Note that `buffer == NULL && width == 255' is a hack used to
+       * tag `unavailable' bitmaps in the array.  We should never try
+       * to load these.
        *
        */
 
diff --git a/thirdparty/freetype/src/cache/ftcsbits.h b/thirdparty/freetype/src/cache/ftcsbits.h
index 206a1bb3fc..f1b71c2835 100644
--- a/thirdparty/freetype/src/cache/ftcsbits.h
+++ b/thirdparty/freetype/src/cache/ftcsbits.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftcsbits.h                                                             */
-/*                                                                         */
-/*    A small-bitmap cache (specification).                                */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftcsbits.h
+ *
+ *   A small-bitmap cache (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTCSBITS_H_
diff --git a/thirdparty/freetype/src/cache/rules.mk b/thirdparty/freetype/src/cache/rules.mk
index 558935976d..abcb242239 100644
--- a/thirdparty/freetype/src/cache/rules.mk
+++ b/thirdparty/freetype/src/cache/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2000-2018 by
+# Copyright (C) 2000-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/cff/cf2arrst.c b/thirdparty/freetype/src/cff/cf2arrst.c
deleted file mode 100644
index 6796450fe1..0000000000
--- a/thirdparty/freetype/src/cff/cf2arrst.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2arrst.c                                                             */
-/*                                                                         */
-/*    Adobe's code for Array Stacks (body).                                */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2glue.h"
-#include "cf2arrst.h"
-
-#include "cf2error.h"
-
-
-  /*
-   * CF2_ArrStack uses an error pointer, to enable shared errors.
-   * Shared errors are necessary when multiple objects allow the program
-   * to continue after detecting errors.  Only the first error should be
-   * recorded.
-   */
-
-  FT_LOCAL_DEF( void )
-  cf2_arrstack_init( CF2_ArrStack  arrstack,
-                     FT_Memory     memory,
-                     FT_Error*     error,
-                     size_t        sizeItem )
-  {
-    FT_ASSERT( arrstack );
-
-    /* initialize the structure */
-    arrstack->memory    = memory;
-    arrstack->error     = error;
-    arrstack->sizeItem  = sizeItem;
-    arrstack->allocated = 0;
-    arrstack->chunk     = 10;    /* chunks of 10 items */
-    arrstack->count     = 0;
-    arrstack->totalSize = 0;
-    arrstack->ptr       = NULL;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_arrstack_finalize( CF2_ArrStack  arrstack )
-  {
-    FT_Memory  memory = arrstack->memory;     /* for FT_FREE */
-
-
-    FT_ASSERT( arrstack );
-
-    arrstack->allocated = 0;
-    arrstack->count     = 0;
-    arrstack->totalSize = 0;
-
-    /* free the data buffer */
-    FT_FREE( arrstack->ptr );
-  }
-
-
-  /* allocate or reallocate the buffer size; */
-  /* return false on memory error */
-  static FT_Bool
-  cf2_arrstack_setNumElements( CF2_ArrStack  arrstack,
-                               size_t        numElements )
-  {
-    FT_ASSERT( arrstack );
-
-    {
-      FT_Error   error  = FT_Err_Ok;        /* for FT_REALLOC */
-      FT_Memory  memory = arrstack->memory; /* for FT_REALLOC */
-
-      size_t  newSize = numElements * arrstack->sizeItem;
-
-
-      if ( numElements > FT_LONG_MAX / arrstack->sizeItem )
-        goto exit;
-
-
-      FT_ASSERT( newSize > 0 );   /* avoid realloc with zero size */
-
-      if ( !FT_REALLOC( arrstack->ptr, arrstack->totalSize, newSize ) )
-      {
-        arrstack->allocated = numElements;
-        arrstack->totalSize = newSize;
-
-        if ( arrstack->count > numElements )
-        {
-          /* we truncated the list! */
-          CF2_SET_ERROR( arrstack->error, Stack_Overflow );
-          arrstack->count = numElements;
-          return FALSE;
-        }
-
-        return TRUE;     /* success */
-      }
-    }
-
-  exit:
-    /* if there's not already an error, store this one */
-    CF2_SET_ERROR( arrstack->error, Out_Of_Memory );
-
-    return FALSE;
-  }
-
-
-  /* set the count, ensuring allocation is sufficient */
-  FT_LOCAL_DEF( void )
-  cf2_arrstack_setCount( CF2_ArrStack  arrstack,
-                         size_t        numElements )
-  {
-    FT_ASSERT( arrstack );
-
-    if ( numElements > arrstack->allocated )
-    {
-      /* expand the allocation first */
-      if ( !cf2_arrstack_setNumElements( arrstack, numElements ) )
-        return;
-    }
-
-    arrstack->count = numElements;
-  }
-
-
-  /* clear the count */
-  FT_LOCAL_DEF( void )
-  cf2_arrstack_clear( CF2_ArrStack  arrstack )
-  {
-    FT_ASSERT( arrstack );
-
-    arrstack->count = 0;
-  }
-
-
-  /* current number of items */
-  FT_LOCAL_DEF( size_t )
-  cf2_arrstack_size( const CF2_ArrStack  arrstack )
-  {
-    FT_ASSERT( arrstack );
-
-    return arrstack->count;
-  }
-
-
-  FT_LOCAL_DEF( void* )
-  cf2_arrstack_getBuffer( const CF2_ArrStack  arrstack )
-  {
-    FT_ASSERT( arrstack );
-
-    return arrstack->ptr;
-  }
-
-
-  /* return pointer to the given element */
-  FT_LOCAL_DEF( void* )
-  cf2_arrstack_getPointer( const CF2_ArrStack  arrstack,
-                           size_t              idx )
-  {
-    void*  newPtr;
-
-
-    FT_ASSERT( arrstack );
-
-    if ( idx >= arrstack->count )
-    {
-      /* overflow */
-      CF2_SET_ERROR( arrstack->error, Stack_Overflow );
-      idx = 0;    /* choose safe default */
-    }
-
-    newPtr = (FT_Byte*)arrstack->ptr + idx * arrstack->sizeItem;
-
-    return newPtr;
-  }
-
-
-  /* push (append) an element at the end of the list;         */
-  /* return false on memory error                             */
-  /* TODO: should there be a length param for extra checking? */
-  FT_LOCAL_DEF( void )
-  cf2_arrstack_push( CF2_ArrStack  arrstack,
-                     const void*   ptr )
-  {
-    FT_ASSERT( arrstack );
-
-    if ( arrstack->count == arrstack->allocated )
-    {
-      /* grow the buffer by one chunk */
-      if ( !cf2_arrstack_setNumElements(
-             arrstack, arrstack->allocated + arrstack->chunk ) )
-      {
-        /* on error, ignore the push */
-        return;
-      }
-    }
-
-    FT_ASSERT( ptr );
-
-    {
-      size_t  offset = arrstack->count * arrstack->sizeItem;
-      void*   newPtr = (FT_Byte*)arrstack->ptr + offset;
-
-
-      FT_MEM_COPY( newPtr, ptr, arrstack->sizeItem );
-      arrstack->count += 1;
-    }
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2arrst.h b/thirdparty/freetype/src/cff/cf2arrst.h
deleted file mode 100644
index 3c21a3b672..0000000000
--- a/thirdparty/freetype/src/cff/cf2arrst.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2arrst.h                                                             */
-/*                                                                         */
-/*    Adobe's code for Array Stacks (specification).                       */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2ARRST_H_
-#define CF2ARRST_H_
-
-
-#include "cf2error.h"
-
-
-FT_BEGIN_HEADER
-
-
-  /* need to define the struct here (not opaque) so it can be allocated by */
-  /* clients                                                               */
-  typedef struct  CF2_ArrStackRec_
-  {
-    FT_Memory  memory;
-    FT_Error*  error;
-
-    size_t  sizeItem;       /* bytes per element             */
-    size_t  allocated;      /* items allocated               */
-    size_t  chunk;          /* allocation increment in items */
-    size_t  count;          /* number of elements allocated  */
-    size_t  totalSize;      /* total bytes allocated         */
-
-    void*  ptr;             /* ptr to data                   */
-
-  } CF2_ArrStackRec, *CF2_ArrStack;
-
-
-  FT_LOCAL( void )
-  cf2_arrstack_init( CF2_ArrStack  arrstack,
-                     FT_Memory     memory,
-                     FT_Error*     error,
-                     size_t        sizeItem );
-  FT_LOCAL( void )
-  cf2_arrstack_finalize( CF2_ArrStack  arrstack );
-
-  FT_LOCAL( void )
-  cf2_arrstack_setCount( CF2_ArrStack  arrstack,
-                         size_t        numElements );
-  FT_LOCAL( void )
-  cf2_arrstack_clear( CF2_ArrStack  arrstack );
-  FT_LOCAL( size_t )
-  cf2_arrstack_size( const CF2_ArrStack  arrstack );
-
-  FT_LOCAL( void* )
-  cf2_arrstack_getBuffer( const CF2_ArrStack  arrstack );
-  FT_LOCAL( void* )
-  cf2_arrstack_getPointer( const CF2_ArrStack  arrstack,
-                           size_t              idx );
-
-  FT_LOCAL( void )
-  cf2_arrstack_push( CF2_ArrStack  arrstack,
-                     const void*   ptr );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2ARRST_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2blues.c b/thirdparty/freetype/src/cff/cf2blues.c
deleted file mode 100644
index c491f2f9e5..0000000000
--- a/thirdparty/freetype/src/cff/cf2blues.c
+++ /dev/null
@@ -1,582 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2blues.c                                                             */
-/*                                                                         */
-/*    Adobe's code for handling Blue Zones (body).                         */
-/*                                                                         */
-/*  Copyright 2009-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2blues.h"
-#include "cf2hints.h"
-#include "cf2font.h"
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
-#undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cf2blues
-
-
-  /*
-   * For blue values, the FreeType parser produces an array of integers,
-   * while the Adobe CFF engine produces an array of fixed.
-   * Define a macro to convert FreeType to fixed.
-   */
-#define cf2_blueToFixed( x )  cf2_intToFixed( x )
-
-
-  FT_LOCAL_DEF( void )
-  cf2_blues_init( CF2_Blues  blues,
-                  CF2_Font   font )
-  {
-    /* pointer to parsed font object */
-    CFF_Decoder*  decoder = font->decoder;
-
-    CF2_Fixed  zoneHeight;
-    CF2_Fixed  maxZoneHeight = 0;
-    CF2_Fixed  csUnitsPerPixel;
-
-    size_t  numBlueValues;
-    size_t  numOtherBlues;
-    size_t  numFamilyBlues;
-    size_t  numFamilyOtherBlues;
-
-    FT_Pos*  blueValues;
-    FT_Pos*  otherBlues;
-    FT_Pos*  familyBlues;
-    FT_Pos*  familyOtherBlues;
-
-    size_t     i;
-    CF2_Fixed  emBoxBottom, emBoxTop;
-
-#if 0
-    CF2_Int  unitsPerEm = font->unitsPerEm;
-
-
-    if ( unitsPerEm == 0 )
-      unitsPerEm = 1000;
-#endif
-
-    FT_ZERO( blues );
-    blues->scale = font->innerTransform.d;
-
-    cf2_getBlueMetrics( decoder,
-                        &blues->blueScale,
-                        &blues->blueShift,
-                        &blues->blueFuzz );
-
-    cf2_getBlueValues( decoder, &numBlueValues, &blueValues );
-    cf2_getOtherBlues( decoder, &numOtherBlues, &otherBlues );
-    cf2_getFamilyBlues( decoder, &numFamilyBlues, &familyBlues );
-    cf2_getFamilyOtherBlues( decoder, &numFamilyOtherBlues, &familyOtherBlues );
-
-    /*
-     * synthetic em box hint heuristic
-     *
-     * Apply this when ideographic dictionary (LanguageGroup 1) has no
-     * real alignment zones.  Adobe tools generate dummy zones at -250 and
-     * 1100 for a 1000 unit em.  Fonts with ICF-based alignment zones
-     * should not enable the heuristic.  When the heuristic is enabled,
-     * the font's blue zones are ignored.
-     *
-     */
-
-    /* get em box from OS/2 typoAscender/Descender                      */
-    /* TODO: FreeType does not parse these metrics.  Skip them for now. */
-#if 0
-    FCM_getHorizontalLineMetrics( &e,
-                                  font->font,
-                                  &ascender,
-                                  &descender,
-                                  &linegap );
-    if ( ascender - descender == unitsPerEm )
-    {
-      emBoxBottom = cf2_intToFixed( descender );
-      emBoxTop    = cf2_intToFixed( ascender );
-    }
-    else
-#endif
-    {
-      emBoxBottom = CF2_ICF_Bottom;
-      emBoxTop    = CF2_ICF_Top;
-    }
-
-    if ( cf2_getLanguageGroup( decoder ) == 1                   &&
-         ( numBlueValues == 0                                 ||
-           ( numBlueValues == 4                             &&
-             cf2_blueToFixed( blueValues[0] ) < emBoxBottom &&
-             cf2_blueToFixed( blueValues[1] ) < emBoxBottom &&
-             cf2_blueToFixed( blueValues[2] ) > emBoxTop    &&
-             cf2_blueToFixed( blueValues[3] ) > emBoxTop    ) ) )
-    {
-      /*
-       * Construct hint edges suitable for synthetic ghost hints at top
-       * and bottom of em box.  +-CF2_MIN_COUNTER allows for unhinted
-       * features above or below the last hinted edge.  This also gives a
-       * net 1 pixel boost to the height of ideographic glyphs.
-       *
-       * Note: Adjust synthetic hints outward by epsilon (0x.0001) to
-       *       avoid interference.  E.g., some fonts have real hints at
-       *       880 and -120.
-       */
-
-      blues->emBoxBottomEdge.csCoord = emBoxBottom - CF2_FIXED_EPSILON;
-      blues->emBoxBottomEdge.dsCoord = cf2_fixedRound(
-                                         FT_MulFix(
-                                           blues->emBoxBottomEdge.csCoord,
-                                           blues->scale ) ) -
-                                       CF2_MIN_COUNTER;
-      blues->emBoxBottomEdge.scale   = blues->scale;
-      blues->emBoxBottomEdge.flags   = CF2_GhostBottom |
-                                       CF2_Locked |
-                                       CF2_Synthetic;
-
-      blues->emBoxTopEdge.csCoord = emBoxTop + CF2_FIXED_EPSILON +
-                                    2 * font->darkenY;
-      blues->emBoxTopEdge.dsCoord = cf2_fixedRound(
-                                      FT_MulFix(
-                                        blues->emBoxTopEdge.csCoord,
-                                        blues->scale ) ) +
-                                    CF2_MIN_COUNTER;
-      blues->emBoxTopEdge.scale   = blues->scale;
-      blues->emBoxTopEdge.flags   = CF2_GhostTop |
-                                    CF2_Locked |
-                                    CF2_Synthetic;
-
-      blues->doEmBoxHints = TRUE;    /* enable the heuristic */
-
-      return;
-    }
-
-    /* copy `BlueValues' and `OtherBlues' to a combined array of top and */
-    /* bottom zones                                                      */
-    for ( i = 0; i < numBlueValues; i += 2 )
-    {
-      blues->zone[blues->count].csBottomEdge =
-        cf2_blueToFixed( blueValues[i] );
-      blues->zone[blues->count].csTopEdge =
-        cf2_blueToFixed( blueValues[i + 1] );
-
-      zoneHeight = SUB_INT32( blues->zone[blues->count].csTopEdge,
-                              blues->zone[blues->count].csBottomEdge );
-
-      if ( zoneHeight < 0 )
-      {
-        FT_TRACE4(( "cf2_blues_init: ignoring negative zone height\n" ));
-        continue;   /* reject this zone */
-      }
-
-      if ( zoneHeight > maxZoneHeight )
-      {
-        /* take maximum before darkening adjustment      */
-        /* so overshoot suppression point doesn't change */
-        maxZoneHeight = zoneHeight;
-      }
-
-      /* adjust both edges of top zone upward by twice darkening amount */
-      if ( i != 0 )
-      {
-        blues->zone[blues->count].csTopEdge    += 2 * font->darkenY;
-        blues->zone[blues->count].csBottomEdge += 2 * font->darkenY;
-      }
-
-      /* first `BlueValue' is bottom zone; others are top */
-      if ( i == 0 )
-      {
-        blues->zone[blues->count].bottomZone =
-          TRUE;
-        blues->zone[blues->count].csFlatEdge =
-          blues->zone[blues->count].csTopEdge;
-      }
-      else
-      {
-        blues->zone[blues->count].bottomZone =
-          FALSE;
-        blues->zone[blues->count].csFlatEdge =
-          blues->zone[blues->count].csBottomEdge;
-      }
-
-      blues->count += 1;
-    }
-
-    for ( i = 0; i < numOtherBlues; i += 2 )
-    {
-      blues->zone[blues->count].csBottomEdge =
-        cf2_blueToFixed( otherBlues[i] );
-      blues->zone[blues->count].csTopEdge =
-        cf2_blueToFixed( otherBlues[i + 1] );
-
-      zoneHeight = SUB_INT32( blues->zone[blues->count].csTopEdge,
-                              blues->zone[blues->count].csBottomEdge );
-
-      if ( zoneHeight < 0 )
-      {
-        FT_TRACE4(( "cf2_blues_init: ignoring negative zone height\n" ));
-        continue;   /* reject this zone */
-      }
-
-      if ( zoneHeight > maxZoneHeight )
-      {
-        /* take maximum before darkening adjustment      */
-        /* so overshoot suppression point doesn't change */
-        maxZoneHeight = zoneHeight;
-      }
-
-      /* Note: bottom zones are not adjusted for darkening amount */
-
-      /* all OtherBlues are bottom zone */
-      blues->zone[blues->count].bottomZone =
-        TRUE;
-      blues->zone[blues->count].csFlatEdge =
-        blues->zone[blues->count].csTopEdge;
-
-      blues->count += 1;
-    }
-
-    /* Adjust for FamilyBlues */
-
-    /* Search for the nearest flat edge in `FamilyBlues' or                */
-    /* `FamilyOtherBlues'.  According to the Black Book, any matching edge */
-    /* must be within one device pixel                                     */
-
-    csUnitsPerPixel = FT_DivFix( cf2_intToFixed( 1 ), blues->scale );
-
-    /* loop on all zones in this font */
-    for ( i = 0; i < blues->count; i++ )
-    {
-      size_t     j;
-      CF2_Fixed  minDiff;
-      CF2_Fixed  flatFamilyEdge, diff;
-      /* value for this font */
-      CF2_Fixed  flatEdge = blues->zone[i].csFlatEdge;
-
-
-      if ( blues->zone[i].bottomZone )
-      {
-        /* In a bottom zone, the top edge is the flat edge.             */
-        /* Search `FamilyOtherBlues' for bottom zones; look for closest */
-        /* Family edge that is within the one pixel threshold.          */
-
-        minDiff = CF2_FIXED_MAX;
-
-        for ( j = 0; j < numFamilyOtherBlues; j += 2 )
-        {
-          /* top edge */
-          flatFamilyEdge = cf2_blueToFixed( familyOtherBlues[j + 1] );
-
-          diff = cf2_fixedAbs( SUB_INT32( flatEdge, flatFamilyEdge ) );
-
-          if ( diff < minDiff && diff < csUnitsPerPixel )
-          {
-            blues->zone[i].csFlatEdge = flatFamilyEdge;
-            minDiff                   = diff;
-
-            if ( diff == 0 )
-              break;
-          }
-        }
-
-        /* check the first member of FamilyBlues, which is a bottom zone */
-        if ( numFamilyBlues >= 2 )
-        {
-          /* top edge */
-          flatFamilyEdge = cf2_blueToFixed( familyBlues[1] );
-
-          diff = cf2_fixedAbs( SUB_INT32( flatEdge, flatFamilyEdge ) );
-
-          if ( diff < minDiff && diff < csUnitsPerPixel )
-            blues->zone[i].csFlatEdge = flatFamilyEdge;
-        }
-      }
-      else
-      {
-        /* In a top zone, the bottom edge is the flat edge.                */
-        /* Search `FamilyBlues' for top zones; skip first zone, which is a */
-        /* bottom zone; look for closest Family edge that is within the    */
-        /* one pixel threshold                                             */
-
-        minDiff = CF2_FIXED_MAX;
-
-        for ( j = 2; j < numFamilyBlues; j += 2 )
-        {
-          /* bottom edge */
-          flatFamilyEdge = cf2_blueToFixed( familyBlues[j] );
-
-          /* adjust edges of top zone upward by twice darkening amount */
-          flatFamilyEdge += 2 * font->darkenY;      /* bottom edge */
-
-          diff = cf2_fixedAbs( SUB_INT32( flatEdge, flatFamilyEdge ) );
-
-          if ( diff < minDiff && diff < csUnitsPerPixel )
-          {
-            blues->zone[i].csFlatEdge = flatFamilyEdge;
-            minDiff                   = diff;
-
-            if ( diff == 0 )
-              break;
-          }
-        }
-      }
-    }
-
-    /* TODO: enforce separation of zones, including BlueFuzz */
-
-    /* Adjust BlueScale; similar to AdjustBlueScale() in coretype */
-    /* `bcsetup.c'.                                               */
-
-    if ( maxZoneHeight > 0 )
-    {
-      if ( blues->blueScale > FT_DivFix( cf2_intToFixed( 1 ),
-                                         maxZoneHeight ) )
-      {
-        /* clamp at maximum scale */
-        blues->blueScale = FT_DivFix( cf2_intToFixed( 1 ),
-                                      maxZoneHeight );
-      }
-
-      /*
-       * TODO: Revisit the bug fix for 613448.  The minimum scale
-       *       requirement catches a number of library fonts.  For
-       *       example, with default BlueScale (.039625) and 0.4 minimum,
-       *       the test below catches any font with maxZoneHeight < 10.1.
-       *       There are library fonts ranging from 2 to 10 that get
-       *       caught, including e.g., Eurostile LT Std Medium with
-       *       maxZoneHeight of 6.
-       *
-       */
-#if 0
-      if ( blueScale < .4 / maxZoneHeight )
-      {
-        tetraphilia_assert( 0 );
-        /* clamp at minimum scale, per bug 0613448 fix */
-        blueScale = .4 / maxZoneHeight;
-      }
-#endif
-
-    }
-
-    /*
-     * Suppress overshoot and boost blue zones at small sizes.  Boost
-     * amount varies linearly from 0.5 pixel near 0 to 0 pixel at
-     * blueScale cutoff.
-     * Note: This boost amount is different from the coretype heuristic.
-     *
-     */
-
-    if ( blues->scale < blues->blueScale )
-    {
-      blues->suppressOvershoot = TRUE;
-
-      /* Change rounding threshold for `dsFlatEdge'.                    */
-      /* Note: constant changed from 0.5 to 0.6 to avoid a problem with */
-      /*       10ppem Arial                                             */
-
-      blues->boost = cf2_doubleToFixed( .6 ) -
-                       FT_MulDiv( cf2_doubleToFixed ( .6 ),
-                                  blues->scale,
-                                  blues->blueScale );
-      if ( blues->boost > 0x7FFF )
-      {
-        /* boost must remain less than 0.5, or baseline could go negative */
-        blues->boost = 0x7FFF;
-      }
-    }
-
-    /* boost and darkening have similar effects; don't do both */
-    if ( font->stemDarkened )
-      blues->boost = 0;
-
-    /* set device space alignment for each zone;    */
-    /* apply boost amount before rounding flat edge */
-
-    for ( i = 0; i < blues->count; i++ )
-    {
-      if ( blues->zone[i].bottomZone )
-        blues->zone[i].dsFlatEdge = cf2_fixedRound(
-                                      FT_MulFix(
-                                        blues->zone[i].csFlatEdge,
-                                        blues->scale ) -
-                                      blues->boost );
-      else
-        blues->zone[i].dsFlatEdge = cf2_fixedRound(
-                                      FT_MulFix(
-                                        blues->zone[i].csFlatEdge,
-                                        blues->scale ) +
-                                      blues->boost );
-    }
-  }
-
-
-  /*
-   * Check whether `stemHint' is captured by one of the blue zones.
-   *
-   * Zero, one or both edges may be valid; only valid edges can be
-   * captured.  For compatibility with CoolType, search top and bottom
-   * zones in the same pass (see `BlueLock').  If a hint is captured,
-   * return true and position the edge(s) in one of 3 ways:
-   *
-   *  1) If `BlueScale' suppresses overshoot, position the captured edge
-   *     at the flat edge of the zone.
-   *  2) If overshoot is not suppressed and `BlueShift' requires
-   *     overshoot, position the captured edge a minimum of 1 device pixel
-   *     from the flat edge.
-   *  3) If overshoot is not suppressed or required, position the captured
-   *     edge at the nearest device pixel.
-   *
-   */
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_blues_capture( const CF2_Blues  blues,
-                     CF2_Hint         bottomHintEdge,
-                     CF2_Hint         topHintEdge )
-  {
-    /* TODO: validate? */
-    CF2_Fixed  csFuzz = blues->blueFuzz;
-
-    /* new position of captured edge */
-    CF2_Fixed  dsNew;
-
-    /* amount that hint is moved when positioned */
-    CF2_Fixed  dsMove = 0;
-
-    FT_Bool   captured = FALSE;
-    CF2_UInt  i;
-
-
-    /* assert edge flags are consistent */
-    FT_ASSERT( !cf2_hint_isTop( bottomHintEdge ) &&
-               !cf2_hint_isBottom( topHintEdge ) );
-
-    /* TODO: search once without blue fuzz for compatibility with coretype? */
-    for ( i = 0; i < blues->count; i++ )
-    {
-      if ( blues->zone[i].bottomZone           &&
-           cf2_hint_isBottom( bottomHintEdge ) )
-      {
-        if ( SUB_INT32( blues->zone[i].csBottomEdge, csFuzz ) <=
-               bottomHintEdge->csCoord                           &&
-             bottomHintEdge->csCoord <=
-               ADD_INT32( blues->zone[i].csTopEdge, csFuzz )     )
-        {
-          /* bottom edge captured by bottom zone */
-
-          if ( blues->suppressOvershoot )
-            dsNew = blues->zone[i].dsFlatEdge;
-
-          else if ( SUB_INT32( blues->zone[i].csTopEdge,
-                               bottomHintEdge->csCoord ) >=
-                      blues->blueShift )
-          {
-            /* guarantee minimum of 1 pixel overshoot */
-            dsNew = FT_MIN(
-                      cf2_fixedRound( bottomHintEdge->dsCoord ),
-                      blues->zone[i].dsFlatEdge - cf2_intToFixed( 1 ) );
-          }
-
-          else
-          {
-            /* simply round captured edge */
-            dsNew = cf2_fixedRound( bottomHintEdge->dsCoord );
-          }
-
-          dsMove   = SUB_INT32( dsNew, bottomHintEdge->dsCoord );
-          captured = TRUE;
-
-          break;
-        }
-      }
-
-      if ( !blues->zone[i].bottomZone && cf2_hint_isTop( topHintEdge ) )
-      {
-        if ( SUB_INT32( blues->zone[i].csBottomEdge, csFuzz ) <=
-               topHintEdge->csCoord                              &&
-             topHintEdge->csCoord <=
-               ADD_INT32( blues->zone[i].csTopEdge, csFuzz )     )
-        {
-          /* top edge captured by top zone */
-
-          if ( blues->suppressOvershoot )
-            dsNew = blues->zone[i].dsFlatEdge;
-
-          else if ( SUB_INT32( topHintEdge->csCoord,
-                               blues->zone[i].csBottomEdge ) >=
-                      blues->blueShift )
-          {
-            /* guarantee minimum of 1 pixel overshoot */
-            dsNew = FT_MAX(
-                      cf2_fixedRound( topHintEdge->dsCoord ),
-                      blues->zone[i].dsFlatEdge + cf2_intToFixed( 1 ) );
-          }
-
-          else
-          {
-            /* simply round captured edge */
-            dsNew = cf2_fixedRound( topHintEdge->dsCoord );
-          }
-
-          dsMove   = SUB_INT32( dsNew, topHintEdge->dsCoord );
-          captured = TRUE;
-
-          break;
-        }
-      }
-    }
-
-    if ( captured )
-    {
-      /* move both edges and flag them `locked' */
-      if ( cf2_hint_isValid( bottomHintEdge ) )
-      {
-        bottomHintEdge->dsCoord = ADD_INT32( bottomHintEdge->dsCoord,
-                                             dsMove );
-        cf2_hint_lock( bottomHintEdge );
-      }
-
-      if ( cf2_hint_isValid( topHintEdge ) )
-      {
-        topHintEdge->dsCoord = ADD_INT32( topHintEdge->dsCoord, dsMove );
-        cf2_hint_lock( topHintEdge );
-      }
-    }
-
-    return captured;
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2blues.h b/thirdparty/freetype/src/cff/cf2blues.h
deleted file mode 100644
index a6bcd9de57..0000000000
--- a/thirdparty/freetype/src/cff/cf2blues.h
+++ /dev/null
@@ -1,185 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2blues.h                                                             */
-/*                                                                         */
-/*    Adobe's code for handling Blue Zones (specification).                */
-/*                                                                         */
-/*  Copyright 2009-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*
-   * A `CF2_Blues' object stores the blue zones (horizontal alignment
-   * zones) of a font.  These are specified in the CFF private dictionary
-   * by `BlueValues', `OtherBlues', `FamilyBlues', and `FamilyOtherBlues'.
-   * Each zone is defined by a top and bottom edge in character space.
-   * Further, each zone is either a top zone or a bottom zone, as recorded
-   * by `bottomZone'.
-   *
-   * The maximum number of `BlueValues' and `FamilyBlues' is 7 each.
-   * However, these are combined to produce a total of 7 zones.
-   * Similarly, the maximum number of `OtherBlues' and `FamilyOtherBlues'
-   * is 5 and these are combined to produce an additional 5 zones.
-   *
-   * Blue zones are used to `capture' hints and force them to a common
-   * alignment point.  This alignment is recorded in device space in
-   * `dsFlatEdge'.  Except for this value, a `CF2_Blues' object could be
-   * constructed independently of scaling.  Construction may occur once
-   * the matrix is known.  Other features implemented in the Capture
-   * method are overshoot suppression, overshoot enforcement, and Blue
-   * Boost.
-   *
-   * Capture is determined by `BlueValues' and `OtherBlues', but the
-   * alignment point may be adjusted to the scaled flat edge of
-   * `FamilyBlues' or `FamilyOtherBlues'.  No alignment is done to the
-   * curved edge of a zone.
-   *
-   */
-
-
-#ifndef CF2BLUES_H_
-#define CF2BLUES_H_
-
-
-#include "cf2glue.h"
-
-
-FT_BEGIN_HEADER
-
-
-  /*
-   * `CF2_Hint' is shared by `cf2hints.h' and
-   * `cf2blues.h', but `cf2blues.h' depends on
-   * `cf2hints.h', so define it here.  Note: The typedef is in
-   * `cf2glue.h'.
-   *
-   */
-  enum
-  {
-    CF2_GhostBottom = 0x1,  /* a single bottom edge           */
-    CF2_GhostTop    = 0x2,  /* a single top edge              */
-    CF2_PairBottom  = 0x4,  /* the bottom edge of a stem hint */
-    CF2_PairTop     = 0x8,  /* the top edge of a stem hint    */
-    CF2_Locked      = 0x10, /* this edge has been aligned     */
-                            /* by a blue zone                 */
-    CF2_Synthetic   = 0x20  /* this edge was synthesized      */
-  };
-
-
-  /*
-   * Default value for OS/2 typoAscender/Descender when their difference
-   * is not equal to `unitsPerEm'.  The default is based on -250 and 1100
-   * in `CF2_Blues', assuming 1000 units per em here.
-   *
-   */
-  enum
-  {
-    CF2_ICF_Top    = cf2_intToFixed(  880 ),
-    CF2_ICF_Bottom = cf2_intToFixed( -120 )
-  };
-
-
-  /*
-   * Constant used for hint adjustment and for synthetic em box hint
-   * placement.
-   */
-#define CF2_MIN_COUNTER  cf2_doubleToFixed( 0.5 )
-
-
-  /* shared typedef is in cf2glue.h */
-  struct  CF2_HintRec_
-  {
-    CF2_UInt  flags;  /* attributes of the edge            */
-    size_t    index;  /* index in original stem hint array */
-                      /* (if not synthetic)                */
-    CF2_Fixed  csCoord;
-    CF2_Fixed  dsCoord;
-    CF2_Fixed  scale;
-  };
-
-
-  typedef struct  CF2_BlueRec_
-  {
-    CF2_Fixed  csBottomEdge;
-    CF2_Fixed  csTopEdge;
-    CF2_Fixed  csFlatEdge; /* may be from either local or Family zones */
-    CF2_Fixed  dsFlatEdge; /* top edge of bottom zone or bottom edge   */
-                           /* of top zone (rounded)                    */
-    FT_Bool  bottomZone;
-
-  } CF2_BlueRec;
-
-
-  /* max total blue zones is 12 */
-  enum
-  {
-    CF2_MAX_BLUES      = 7,
-    CF2_MAX_OTHERBLUES = 5
-  };
-
-
-  typedef struct  CF2_BluesRec_
-  {
-    CF2_Fixed  scale;
-    CF2_UInt   count;
-    FT_Bool    suppressOvershoot;
-    FT_Bool    doEmBoxHints;
-
-    CF2_Fixed  blueScale;
-    CF2_Fixed  blueShift;
-    CF2_Fixed  blueFuzz;
-
-    CF2_Fixed  boost;
-
-    CF2_HintRec  emBoxTopEdge;
-    CF2_HintRec  emBoxBottomEdge;
-
-    CF2_BlueRec  zone[CF2_MAX_BLUES + CF2_MAX_OTHERBLUES];
-
-  } CF2_BluesRec, *CF2_Blues;
-
-
-  FT_LOCAL( void )
-  cf2_blues_init( CF2_Blues  blues,
-                  CF2_Font   font );
-  FT_LOCAL( FT_Bool )
-  cf2_blues_capture( const CF2_Blues  blues,
-                     CF2_Hint         bottomHintEdge,
-                     CF2_Hint         topHintEdge );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2BLUES_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2error.c b/thirdparty/freetype/src/cff/cf2error.c
deleted file mode 100644
index e3dd69f50d..0000000000
--- a/thirdparty/freetype/src/cff/cf2error.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2error.c                                                             */
-/*                                                                         */
-/*    Adobe's code for error handling (body).                              */
-/*                                                                         */
-/*  Copyright 2006-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include "cf2error.h"
-
-
-  FT_LOCAL_DEF( void )
-  cf2_setError( FT_Error*  error,
-                FT_Error   value )
-  {
-    if ( error && !*error )
-      *error = value;
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2error.h b/thirdparty/freetype/src/cff/cf2error.h
deleted file mode 100644
index d2c770d297..0000000000
--- a/thirdparty/freetype/src/cff/cf2error.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2error.h                                                             */
-/*                                                                         */
-/*    Adobe's code for error handling (specification).                     */
-/*                                                                         */
-/*  Copyright 2006-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2ERROR_H_
-#define CF2ERROR_H_
-
-
-#include FT_MODULE_ERRORS_H
-
-#undef FTERRORS_H_
-
-#undef  FT_ERR_PREFIX
-#define FT_ERR_PREFIX  CF2_Err_
-#define FT_ERR_BASE    FT_Mod_Err_CF2
-
-
-#include FT_ERRORS_H
-#include "cf2ft.h"
-
-
-FT_BEGIN_HEADER
-
-
-  /*
-   * A poor-man error facility.
-   *
-   * This code being written in vanilla C, doesn't have the luxury of a
-   * language-supported exception mechanism such as the one available in
-   * Java.  Instead, we are stuck with using error codes that must be
-   * carefully managed and preserved.  However, it is convenient for us to
-   * model our error mechanism on a Java-like exception mechanism.
-   * When we assign an error code we are thus `throwing' an error.
-   *
-   * The preservation of an error code is done by coding convention.
-   * Upon a function call if the error code is anything other than
-   * `FT_Err_Ok', which is guaranteed to be zero, we
-   * will return without altering that error.  This will allow the
-   * error to propagate and be handled at the appropriate location in
-   * the code.
-   *
-   * This allows a style of code where the error code is initialized
-   * up front and a block of calls are made with the error code only
-   * being checked after the block.  If a new error occurs, the original
-   * error will be preserved and a functional no-op should result in any
-   * subsequent function that has an initial error code not equal to
-   * `FT_Err_Ok'.
-   *
-   * Errors are encoded by calling the `FT_THROW' macro.  For example,
-   *
-   * {
-   *   FT_Error  e;
-   *
-   *
-   *   ...
-   *   e = FT_THROW( Out_Of_Memory );
-   * }
-   *
-   */
-
-
-  /* Set error code to a particular value. */
-  FT_LOCAL( void )
-  cf2_setError( FT_Error*  error,
-                FT_Error   value );
-
-
-  /*
-   * A macro that conditionally sets an error code.
-   *
-   * This macro will first check whether `error' is set;
-   * if not, it will set it to `e'.
-   *
-  */
-#define CF2_SET_ERROR( error, e )              \
-          cf2_setError( error, FT_THROW( e ) )
-
-
-FT_END_HEADER
-
-
-#endif /* CF2ERROR_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2fixed.h b/thirdparty/freetype/src/cff/cf2fixed.h
deleted file mode 100644
index a041184bda..0000000000
--- a/thirdparty/freetype/src/cff/cf2fixed.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2fixed.h                                                             */
-/*                                                                         */
-/*    Adobe's code for Fixed Point Mathematics (specification only).       */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2FIXED_H_
-#define CF2FIXED_H_
-
-
-FT_BEGIN_HEADER
-
-
-  /* rasterizer integer and fixed point arithmetic must be 32-bit */
-
-#define   CF2_Fixed  CF2_F16Dot16
-  typedef FT_Int32   CF2_Frac;   /* 2.30 fixed point */
-
-
-#define CF2_FIXED_MAX      ( (CF2_Fixed)0x7FFFFFFFL )
-#define CF2_FIXED_MIN      ( (CF2_Fixed)0x80000000L )
-#define CF2_FIXED_ONE      ( (CF2_Fixed)0x10000L )
-#define CF2_FIXED_EPSILON  ( (CF2_Fixed)0x0001 )
-
-  /* in C 89, left and right shift of negative numbers is  */
-  /* implementation specific behaviour in the general case */
-
-#define cf2_intToFixed( i )                                              \
-          ( (CF2_Fixed)( (FT_UInt32)(i) << 16 ) )
-#define cf2_fixedToInt( x )                                              \
-          ( (FT_Short)( ( (FT_UInt32)(x) + 0x8000U ) >> 16 ) )
-#define cf2_fixedRound( x )                                              \
-          ( (CF2_Fixed)( ( (FT_UInt32)(x) + 0x8000U ) & 0xFFFF0000UL ) )
-#define cf2_doubleToFixed( f )                                           \
-          ( (CF2_Fixed)( (f) * 65536.0 + 0.5 ) )
-#define cf2_fixedAbs( x )                                                \
-          ( (x) < 0 ? NEG_INT32( x ) : (x) )
-#define cf2_fixedFloor( x )                                              \
-          ( (CF2_Fixed)( (FT_UInt32)(x) & 0xFFFF0000UL ) )
-#define cf2_fixedFraction( x )                                           \
-          ( (x) - cf2_fixedFloor( x ) )
-#define cf2_fracToFixed( x )                                             \
-          ( (x) < 0 ? -( ( -(x) + 0x2000 ) >> 14 )                       \
-                    :  ( (  (x) + 0x2000 ) >> 14 ) )
-
-
-  /* signed numeric types */
-  typedef enum  CF2_NumberType_
-  {
-    CF2_NumberFixed,    /* 16.16 */
-    CF2_NumberFrac,     /*  2.30 */
-    CF2_NumberInt       /* 32.0  */
-
-  } CF2_NumberType;
-
-
-FT_END_HEADER
-
-
-#endif /* CF2FIXED_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2font.c b/thirdparty/freetype/src/cff/cf2font.c
deleted file mode 100644
index 4ac71a8d71..0000000000
--- a/thirdparty/freetype/src/cff/cf2font.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2font.c                                                              */
-/*                                                                         */
-/*    Adobe's code for font instances (body).                              */
-/*                                                                         */
-/*  Copyright 2007-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_INTERNAL_CALC_H
-
-#include "cf2ft.h"
-
-#include "cf2glue.h"
-#include "cf2font.h"
-#include "cf2error.h"
-#include "cf2intrp.h"
-
-
-  /* Compute a stem darkening amount in character space. */
-  static void
-  cf2_computeDarkening( CF2_Fixed   emRatio,
-                        CF2_Fixed   ppem,
-                        CF2_Fixed   stemWidth,
-                        CF2_Fixed*  darkenAmount,
-                        CF2_Fixed   boldenAmount,
-                        FT_Bool     stemDarkened,
-                        FT_Int*     darkenParams )
-  {
-    /*
-     * Total darkening amount is computed in 1000 unit character space
-     * using the modified 5 part curve as Adobe's Avalon rasterizer.
-     * The darkening amount is smaller for thicker stems.
-     * It becomes zero when the stem is thicker than 2.333 pixels.
-     *
-     * By default, we use
-     *
-     *   darkenAmount = 0.4 pixels   if scaledStem <= 0.5 pixels,
-     *   darkenAmount = 0.275 pixels if 1 <= scaledStem <= 1.667 pixels,
-     *   darkenAmount = 0 pixel      if scaledStem >= 2.333 pixels,
-     *
-     * and piecewise linear in-between:
-     *
-     *
-     *   darkening
-     *       ^
-     *       |
-     *       |      (x1,y1)
-     *       |--------+
-     *       |         \
-     *       |          \
-     *       |           \          (x3,y3)
-     *       |            +----------+
-     *       |        (x2,y2)         \
-     *       |                         \
-     *       |                          \
-     *       |                           +-----------------
-     *       |                         (x4,y4)
-     *       +--------------------------------------------->   stem
-     *                                                       thickness
-     *
-     *
-     * This corresponds to the following values for the
-     * `darkening-parameters' property:
-     *
-     *   (x1, y1) = (500, 400)
-     *   (x2, y2) = (1000, 275)
-     *   (x3, y3) = (1667, 275)
-     *   (x4, y4) = (2333, 0)
-     *
-     */
-
-    /* Internal calculations are done in units per thousand for */
-    /* convenience. The x axis is scaled stem width in          */
-    /* thousandths of a pixel. That is, 1000 is 1 pixel.        */
-    /* The y axis is darkening amount in thousandths of a pixel.*/
-    /* In the code, below, dividing by ppem and                 */
-    /* adjusting for emRatio converts darkenAmount to character */
-    /* space (font units).                                      */
-    CF2_Fixed  stemWidthPer1000, scaledStem;
-    FT_Int     logBase2;
-
-
-    *darkenAmount = 0;
-
-    if ( boldenAmount == 0 && !stemDarkened )
-      return;
-
-    /* protect against range problems and divide by zero */
-    if ( emRatio < cf2_doubleToFixed( .01 ) )
-      return;
-
-    if ( stemDarkened )
-    {
-      FT_Int  x1 = darkenParams[0];
-      FT_Int  y1 = darkenParams[1];
-      FT_Int  x2 = darkenParams[2];
-      FT_Int  y2 = darkenParams[3];
-      FT_Int  x3 = darkenParams[4];
-      FT_Int  y3 = darkenParams[5];
-      FT_Int  x4 = darkenParams[6];
-      FT_Int  y4 = darkenParams[7];
-
-
-      /* convert from true character space to 1000 unit character space; */
-      /* add synthetic emboldening effect                                */
-
-      /* `stemWidthPer1000' will not overflow for a legitimate font      */
-
-      stemWidthPer1000 = FT_MulFix( stemWidth + boldenAmount, emRatio );
-
-      /* `scaledStem' can easily overflow, so we must clamp its maximum  */
-      /* value; the test doesn't need to be precise, but must be         */
-      /* conservative.  The clamp value (default 2333) where             */
-      /* `darkenAmount' is zero is well below the overflow value of      */
-      /* 32767.                                                          */
-      /*                                                                 */
-      /* FT_MSB computes the integer part of the base 2 logarithm.  The  */
-      /* number of bits for the product is 1 or 2 more than the sum of   */
-      /* logarithms; remembering that the 16 lowest bits of the fraction */
-      /* are dropped this is correct to within a factor of almost 4.     */
-      /* For example, 0x80.0000 * 0x80.0000 = 0x4000.0000 is 23+23 and   */
-      /* is flagged as possible overflow because 0xFF.FFFF * 0xFF.FFFF = */
-      /* 0xFFFF.FE00 is also 23+23.                                      */
-
-      logBase2 = FT_MSB( (FT_UInt32)stemWidthPer1000 ) +
-                   FT_MSB( (FT_UInt32)ppem );
-
-      if ( logBase2 >= 46 )
-        /* possible overflow */
-        scaledStem = cf2_intToFixed( x4 );
-      else
-        scaledStem = FT_MulFix( stemWidthPer1000, ppem );
-
-      /* now apply the darkening parameters */
-
-      if ( scaledStem < cf2_intToFixed( x1 ) )
-        *darkenAmount = FT_DivFix( cf2_intToFixed( y1 ), ppem );
-
-      else if ( scaledStem < cf2_intToFixed( x2 ) )
-      {
-        FT_Int  xdelta = x2 - x1;
-        FT_Int  ydelta = y2 - y1;
-        FT_Int  x      = stemWidthPer1000 -
-                           FT_DivFix( cf2_intToFixed( x1 ), ppem );
-
-
-        if ( !xdelta )
-          goto Try_x3;
-
-        *darkenAmount = FT_MulDiv( x, ydelta, xdelta ) +
-                          FT_DivFix( cf2_intToFixed( y1 ), ppem );
-      }
-
-      else if ( scaledStem < cf2_intToFixed( x3 ) )
-      {
-      Try_x3:
-        {
-          FT_Int  xdelta = x3 - x2;
-          FT_Int  ydelta = y3 - y2;
-          FT_Int  x      = stemWidthPer1000 -
-                             FT_DivFix( cf2_intToFixed( x2 ), ppem );
-
-
-          if ( !xdelta )
-            goto Try_x4;
-
-          *darkenAmount = FT_MulDiv( x, ydelta, xdelta ) +
-                            FT_DivFix( cf2_intToFixed( y2 ), ppem );
-        }
-      }
-
-      else if ( scaledStem < cf2_intToFixed( x4 ) )
-      {
-      Try_x4:
-        {
-          FT_Int  xdelta = x4 - x3;
-          FT_Int  ydelta = y4 - y3;
-          FT_Int  x      = stemWidthPer1000 -
-                             FT_DivFix( cf2_intToFixed( x3 ), ppem );
-
-
-          if ( !xdelta )
-            goto Use_y4;
-
-          *darkenAmount = FT_MulDiv( x, ydelta, xdelta ) +
-                            FT_DivFix( cf2_intToFixed( y3 ), ppem );
-        }
-      }
-
-      else
-      {
-      Use_y4:
-        *darkenAmount = FT_DivFix( cf2_intToFixed( y4 ), ppem );
-      }
-
-      /* use half the amount on each side and convert back to true */
-      /* character space                                           */
-      *darkenAmount = FT_DivFix( *darkenAmount, 2 * emRatio );
-    }
-
-    /* add synthetic emboldening effect in character space */
-    *darkenAmount += boldenAmount / 2;
-  }
-
-
-  /* set up values for the current FontDict and matrix; */
-  /* called for each glyph to be rendered               */
-
-  /* caller's transform is adjusted for subpixel positioning */
-  static void
-  cf2_font_setup( CF2_Font           font,
-                  const CF2_Matrix*  transform )
-  {
-    /* pointer to parsed font object */
-    CFF_Decoder*  decoder = font->decoder;
-
-    FT_Bool  needExtraSetup = FALSE;
-
-    CFF_VStoreRec*  vstore;
-    FT_Bool         hasVariations = FALSE;
-
-    /* character space units */
-    CF2_Fixed  boldenX = font->syntheticEmboldeningAmountX;
-    CF2_Fixed  boldenY = font->syntheticEmboldeningAmountY;
-
-    CFF_SubFont  subFont;
-    CF2_Fixed    ppem;
-
-    CF2_UInt   lenNormalizedV = 0;
-    FT_Fixed*  normalizedV    = NULL;
-
-
-    /* clear previous error */
-    font->error = FT_Err_Ok;
-
-    /* if a CID fontDict has changed, we need to recompute some cached */
-    /* data                                                            */
-    subFont = cf2_getSubfont( decoder );
-    if ( font->lastSubfont != subFont )
-    {
-      font->lastSubfont = subFont;
-      needExtraSetup    = TRUE;
-    }
-
-    /* check for variation vectors */
-    vstore        = cf2_getVStore( decoder );
-    hasVariations = ( vstore->dataCount != 0 );
-
-    if ( hasVariations )
-    {
-#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-      /* check whether Private DICT in this subfont needs to be reparsed */
-      font->error = cf2_getNormalizedVector( decoder,
-                                             &lenNormalizedV,
-                                             &normalizedV );
-      if ( font->error )
-        return;
-
-      if ( cff_blend_check_vector( &subFont->blend,
-                                   subFont->private_dict.vsindex,
-                                   lenNormalizedV,
-                                   normalizedV ) )
-      {
-        /* blend has changed, reparse */
-        cff_load_private_dict( decoder->cff,
-                               subFont,
-                               lenNormalizedV,
-                               normalizedV );
-        needExtraSetup = TRUE;
-      }
-#endif
-
-      /* copy from subfont */
-      font->blend.font = subFont->blend.font;
-
-      /* clear state of charstring blend */
-      font->blend.usedBV = FALSE;
-
-      /* initialize value for charstring */
-      font->vsindex = subFont->private_dict.vsindex;
-
-      /* store vector inputs for blends in charstring */
-      font->lenNDV = lenNormalizedV;
-      font->NDV    = normalizedV;
-    }
-
-    /* if ppem has changed, we need to recompute some cached data         */
-    /* note: because of CID font matrix concatenation, ppem and transform */
-    /*       do not necessarily track.                                    */
-    ppem = cf2_getPpemY( decoder );
-    if ( font->ppem != ppem )
-    {
-      font->ppem     = ppem;
-      needExtraSetup = TRUE;
-    }
-
-    /* copy hinted flag on each call */
-    font->hinted = (FT_Bool)( font->renderingFlags & CF2_FlagsHinted );
-
-    /* determine if transform has changed;       */
-    /* include Fontmatrix but ignore translation */
-    if ( ft_memcmp( transform,
-                    &font->currentTransform,
-                    4 * sizeof ( CF2_Fixed ) ) != 0 )
-    {
-      /* save `key' information for `cache of one' matrix data; */
-      /* save client transform, without the translation         */
-      font->currentTransform    = *transform;
-      font->currentTransform.tx =
-      font->currentTransform.ty = cf2_intToFixed( 0 );
-
-      /* TODO: FreeType transform is simple scalar; for now, use identity */
-      /*       for outer                                                  */
-      font->innerTransform   = *transform;
-      font->outerTransform.a =
-      font->outerTransform.d = cf2_intToFixed( 1 );
-      font->outerTransform.b =
-      font->outerTransform.c = cf2_intToFixed( 0 );
-
-      needExtraSetup = TRUE;
-    }
-
-    /*
-     * font->darkened is set to true if there is a stem darkening request or
-     * the font is synthetic emboldened.
-     * font->darkened controls whether to adjust blue zones, winding order,
-     * and hinting.
-     *
-     */
-    if ( font->stemDarkened != ( font->renderingFlags & CF2_FlagsDarkened ) )
-    {
-      font->stemDarkened =
-        (FT_Bool)( font->renderingFlags & CF2_FlagsDarkened );
-
-      /* blue zones depend on darkened flag */
-      needExtraSetup = TRUE;
-    }
-
-    /* recompute variables that are dependent on transform or FontDict or */
-    /* darken flag                                                        */
-    if ( needExtraSetup )
-    {
-      /* StdVW is found in the private dictionary;                       */
-      /* recompute darkening amounts whenever private dictionary or      */
-      /* transform change                                                */
-      /* Note: a rendering flag turns darkening on or off, so we want to */
-      /*       store the `on' amounts;                                   */
-      /*       darkening amount is computed in character space           */
-      /* TODO: testing size-dependent darkening here;                    */
-      /*       what to do for rotations?                                 */
-
-      CF2_Fixed  emRatio;
-      CF2_Fixed  stdHW;
-      CF2_Int    unitsPerEm = font->unitsPerEm;
-
-
-      if ( unitsPerEm == 0 )
-        unitsPerEm = 1000;
-
-      ppem = FT_MAX( cf2_intToFixed( 4 ),
-                     font->ppem ); /* use minimum ppem of 4 */
-
-#if 0
-      /* since vstem is measured in the x-direction, we use the `a' member */
-      /* of the fontMatrix                                                 */
-      emRatio = cf2_fixedFracMul( cf2_intToFixed( 1000 ), fontMatrix->a );
-#endif
-
-      /* Freetype does not preserve the fontMatrix when parsing; use */
-      /* unitsPerEm instead.                                         */
-      /* TODO: check precision of this                               */
-      emRatio     = cf2_intToFixed( 1000 ) / unitsPerEm;
-      font->stdVW = cf2_getStdVW( decoder );
-
-      if ( font->stdVW <= 0 )
-        font->stdVW = FT_DivFix( cf2_intToFixed( 75 ), emRatio );
-
-      if ( boldenX > 0 )
-      {
-        /* Ensure that boldenX is at least 1 pixel for synthetic bold font */
-        /* (similar to what Avalon does)                                   */
-        boldenX = FT_MAX( boldenX,
-                          FT_DivFix( cf2_intToFixed( unitsPerEm ), ppem ) );
-
-        /* Synthetic emboldening adds at least 1 pixel to darkenX, while */
-        /* stem darkening adds at most half pixel.  Since the purpose of */
-        /* stem darkening (readability at small sizes) is met with       */
-        /* synthetic emboldening, no need to add stem darkening for a    */
-        /* synthetic bold font.                                          */
-        cf2_computeDarkening( emRatio,
-                              ppem,
-                              font->stdVW,
-                              &font->darkenX,
-                              boldenX,
-                              FALSE,
-                              font->darkenParams );
-      }
-      else
-        cf2_computeDarkening( emRatio,
-                              ppem,
-                              font->stdVW,
-                              &font->darkenX,
-                              0,
-                              font->stemDarkened,
-                              font->darkenParams );
-
-#if 0
-      /* since hstem is measured in the y-direction, we use the `d' member */
-      /* of the fontMatrix                                                 */
-      /* TODO: use the same units per em as above; check this              */
-      emRatio = cf2_fixedFracMul( cf2_intToFixed( 1000 ), fontMatrix->d );
-#endif
-
-      /* set the default stem width, because it must be the same for all */
-      /* family members;                                                 */
-      /* choose a constant for StdHW that depends on font contrast       */
-      stdHW = cf2_getStdHW( decoder );
-
-      if ( stdHW > 0 && font->stdVW > MUL_INT32( 2, stdHW ) )
-        font->stdHW = FT_DivFix( cf2_intToFixed( 75 ), emRatio );
-      else
-      {
-        /* low contrast font gets less hstem darkening */
-        font->stdHW = FT_DivFix( cf2_intToFixed( 110 ), emRatio );
-      }
-
-      cf2_computeDarkening( emRatio,
-                            ppem,
-                            font->stdHW,
-                            &font->darkenY,
-                            boldenY,
-                            font->stemDarkened,
-                            font->darkenParams );
-
-      if ( font->darkenX != 0 || font->darkenY != 0 )
-        font->darkened = TRUE;
-      else
-        font->darkened = FALSE;
-
-      font->reverseWinding = FALSE; /* initial expectation is CCW */
-
-      /* compute blue zones for this instance */
-      cf2_blues_init( &font->blues, font );
-
-    } /* needExtraSetup */
-  }
-
-
-  /* equivalent to AdobeGetOutline */
-  FT_LOCAL_DEF( FT_Error )
-  cf2_getGlyphOutline( CF2_Font           font,
-                       CF2_Buffer         charstring,
-                       const CF2_Matrix*  transform,
-                       CF2_F16Dot16*      glyphWidth )
-  {
-    FT_Error  lastError = FT_Err_Ok;
-
-    FT_Vector  translation;
-
-#if 0
-    FT_Vector  advancePoint;
-#endif
-
-    CF2_Fixed  advWidth = 0;
-    FT_Bool    needWinding;
-
-
-    /* Note: use both integer and fraction for outlines.  This allows bbox */
-    /*       to come out directly.                                         */
-
-    translation.x = transform->tx;
-    translation.y = transform->ty;
-
-    /* set up values based on transform */
-    cf2_font_setup( font, transform );
-    if ( font->error )
-      goto exit;                      /* setup encountered an error */
-
-    /* reset darken direction */
-    font->reverseWinding = FALSE;
-
-    /* winding order only affects darkening */
-    needWinding = font->darkened;
-
-    while ( 1 )
-    {
-      /* reset output buffer */
-      cf2_outline_reset( &font->outline );
-
-      /* build the outline, passing the full translation */
-      cf2_interpT2CharString( font,
-                              charstring,
-                              (CF2_OutlineCallbacks)&font->outline,
-                              &translation,
-                              FALSE,
-                              0,
-                              0,
-                              &advWidth );
-
-      if ( font->error )
-        goto exit;
-
-      if ( !needWinding )
-        break;
-
-      /* check winding order */
-      if ( font->outline.root.windingMomentum >= 0 ) /* CFF is CCW */
-        break;
-
-      /* invert darkening and render again                            */
-      /* TODO: this should be a parameter to getOutline-computeOffset */
-      font->reverseWinding = TRUE;
-
-      needWinding = FALSE;    /* exit after next iteration */
-    }
-
-    /* finish storing client outline */
-    cf2_outline_close( &font->outline );
-
-  exit:
-    /* FreeType just wants the advance width; there is no translation */
-    *glyphWidth = advWidth;
-
-    /* free resources and collect errors from objects we've used */
-    cf2_setError( &font->error, lastError );
-
-    return font->error;
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2font.h b/thirdparty/freetype/src/cff/cf2font.h
deleted file mode 100644
index 17ecd17bbb..0000000000
--- a/thirdparty/freetype/src/cff/cf2font.h
+++ /dev/null
@@ -1,130 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2font.h                                                              */
-/*                                                                         */
-/*    Adobe's code for font instances (specification).                     */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2FONT_H_
-#define CF2FONT_H_
-
-
-#include "cf2ft.h"
-#include "cf2blues.h"
-#include "cffload.h"
-
-
-FT_BEGIN_HEADER
-
-
-#define CF2_OPERAND_STACK_SIZE  48
-#define CF2_MAX_SUBR            16 /* maximum subroutine nesting;         */
-                                   /* only 10 are allowed but there exist */
-                                   /* fonts like `HiraKakuProN-W3.ttf'    */
-                                   /* (Hiragino Kaku Gothic ProN W3;      */
-                                   /* 8.2d6e1; 2014-12-19) that exceed    */
-                                   /* this limit                          */
-#define CF2_STORAGE_SIZE        32
-
-
-  /* typedef is in `cf2glue.h' */
-  struct  CF2_FontRec_
-  {
-    FT_Memory  memory;
-    FT_Error   error;     /* shared error for this instance */
-
-    FT_Bool             isCFF2;
-    CF2_RenderingFlags  renderingFlags;
-
-    /* variables that depend on Transform:  */
-    /* the following have zero translation; */
-    /* inner * outer = font * original      */
-
-    CF2_Matrix  currentTransform;  /* original client matrix           */
-    CF2_Matrix  innerTransform;    /* for hinting; erect, scaled       */
-    CF2_Matrix  outerTransform;    /* post hinting; includes rotations */
-    CF2_Fixed   ppem;              /* transform-dependent              */
-
-    /* variation data */
-    CFF_BlendRec  blend;            /* cached charstring blend vector  */
-    CF2_UInt      vsindex;          /* current vsindex                 */
-    CF2_UInt      lenNDV;           /* current length NDV or zero      */
-    FT_Fixed*     NDV;              /* ptr to current NDV or NULL      */
-
-    CF2_Int  unitsPerEm;
-
-    CF2_Fixed  syntheticEmboldeningAmountX;   /* character space units */
-    CF2_Fixed  syntheticEmboldeningAmountY;   /* character space units */
-
-    /* FreeType related members */
-    CF2_OutlineRec  outline;       /* freetype glyph outline functions */
-    CFF_Decoder*    decoder;
-    CFF_SubFont     lastSubfont;              /* FreeType parsed data; */
-                                              /* top font or subfont   */
-
-    /* these flags can vary from one call to the next */
-    FT_Bool  hinted;
-    FT_Bool  darkened;       /* true if stemDarkened or synthetic bold */
-                             /* i.e. darkenX != 0 || darkenY != 0      */
-    FT_Bool  stemDarkened;
-
-    FT_Int  darkenParams[8];              /* 1000 unit character space */
-
-    /* variables that depend on both FontDict and Transform */
-    CF2_Fixed  stdVW;     /* in character space; depends on dict entry */
-    CF2_Fixed  stdHW;     /* in character space; depends on dict entry */
-    CF2_Fixed  darkenX;                    /* character space units    */
-    CF2_Fixed  darkenY;                    /* depends on transform     */
-                                           /* and private dict (StdVW) */
-    FT_Bool  reverseWinding;               /* darken assuming          */
-                                           /* counterclockwise winding */
-
-    CF2_BluesRec  blues;                         /* computed zone data */
-  };
-
-
-  FT_LOCAL( FT_Error )
-  cf2_getGlyphOutline( CF2_Font           font,
-                       CF2_Buffer         charstring,
-                       const CF2_Matrix*  transform,
-                       CF2_F16Dot16*      glyphWidth );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2FONT_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2ft.c b/thirdparty/freetype/src/cff/cf2ft.c
deleted file mode 100644
index c6c00d1623..0000000000
--- a/thirdparty/freetype/src/cff/cf2ft.c
+++ /dev/null
@@ -1,755 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2ft.c                                                                */
-/*                                                                         */
-/*    FreeType Glue Component to Adobe's Interpreter (body).               */
-/*                                                                         */
-/*  Copyright 2013-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2font.h"
-#include "cf2error.h"
-
-
-#define CF2_MAX_SIZE  cf2_intToFixed( 2000 )    /* max ppem */
-
-
-  /*
-   * This check should avoid most internal overflow cases.  Clients should
-   * generally respond to `Glyph_Too_Big' by getting a glyph outline
-   * at EM size, scaling it and filling it as a graphics operation.
-   *
-   */
-  static FT_Error
-  cf2_checkTransform( const CF2_Matrix*  transform,
-                      CF2_Int            unitsPerEm )
-  {
-    CF2_Fixed  maxScale;
-
-
-    FT_ASSERT( unitsPerEm > 0 );
-
-    if ( transform->a <= 0 || transform->d <= 0 )
-      return FT_THROW( Invalid_Size_Handle );
-
-    FT_ASSERT( transform->b == 0 && transform->c == 0 );
-    FT_ASSERT( transform->tx == 0 && transform->ty == 0 );
-
-    if ( unitsPerEm > 0x7FFF )
-      return FT_THROW( Glyph_Too_Big );
-
-    maxScale = FT_DivFix( CF2_MAX_SIZE, cf2_intToFixed( unitsPerEm ) );
-
-    if ( transform->a > maxScale || transform->d > maxScale )
-      return FT_THROW( Glyph_Too_Big );
-
-    return FT_Err_Ok;
-  }
-
-
-  static void
-  cf2_setGlyphWidth( CF2_Outline  outline,
-                     CF2_Fixed    width )
-  {
-    CFF_Decoder*  decoder = outline->decoder;
-
-
-    FT_ASSERT( decoder );
-
-    decoder->glyph_width = cf2_fixedToInt( width );
-  }
-
-
-  /* Clean up font instance. */
-  static void
-  cf2_free_instance( void*  ptr )
-  {
-    CF2_Font  font = (CF2_Font)ptr;
-
-
-    if ( font )
-    {
-      FT_Memory  memory = font->memory;
-
-
-      FT_FREE( font->blend.lastNDV );
-      FT_FREE( font->blend.BV );
-    }
-  }
-
-
-  /********************************************/
-  /*                                          */
-  /* functions for handling client outline;   */
-  /* FreeType uses coordinates in 26.6 format */
-  /*                                          */
-  /********************************************/
-
-  static void
-  cf2_builder_moveTo( CF2_OutlineCallbacks      callbacks,
-                      const CF2_CallbackParams  params )
-  {
-    /* downcast the object pointer */
-    CF2_Outline   outline = (CF2_Outline)callbacks;
-    CFF_Builder*  builder;
-
-    (void)params;        /* only used in debug mode */
-
-
-    FT_ASSERT( outline && outline->decoder );
-    FT_ASSERT( params->op == CF2_PathOpMoveTo );
-
-    builder = &outline->decoder->builder;
-
-    /* note: two successive moves simply close the contour twice */
-    cff_builder_close_contour( builder );
-    builder->path_begun = 0;
-  }
-
-
-  static void
-  cf2_builder_lineTo( CF2_OutlineCallbacks      callbacks,
-                      const CF2_CallbackParams  params )
-  {
-    FT_Error  error;
-
-    /* downcast the object pointer */
-    CF2_Outline   outline = (CF2_Outline)callbacks;
-    CFF_Builder*  builder;
-
-
-    FT_ASSERT( outline && outline->decoder );
-    FT_ASSERT( params->op == CF2_PathOpLineTo );
-
-    builder = &outline->decoder->builder;
-
-    if ( !builder->path_begun )
-    {
-      /* record the move before the line; also check points and set */
-      /* `path_begun'                                               */
-      error = cff_builder_start_point( builder,
-                                       params->pt0.x,
-                                       params->pt0.y );
-      if ( error )
-      {
-        if ( !*callbacks->error )
-          *callbacks->error =  error;
-        return;
-      }
-    }
-
-    /* `cff_builder_add_point1' includes a check_points call for one point */
-    error = cff_builder_add_point1( builder,
-                                    params->pt1.x,
-                                    params->pt1.y );
-    if ( error )
-    {
-      if ( !*callbacks->error )
-        *callbacks->error =  error;
-      return;
-    }
-  }
-
-
-  static void
-  cf2_builder_cubeTo( CF2_OutlineCallbacks      callbacks,
-                      const CF2_CallbackParams  params )
-  {
-    FT_Error  error;
-
-    /* downcast the object pointer */
-    CF2_Outline   outline = (CF2_Outline)callbacks;
-    CFF_Builder*  builder;
-
-
-    FT_ASSERT( outline && outline->decoder );
-    FT_ASSERT( params->op == CF2_PathOpCubeTo );
-
-    builder = &outline->decoder->builder;
-
-    if ( !builder->path_begun )
-    {
-      /* record the move before the line; also check points and set */
-      /* `path_begun'                                               */
-      error = cff_builder_start_point( builder,
-                                       params->pt0.x,
-                                       params->pt0.y );
-      if ( error )
-      {
-        if ( !*callbacks->error )
-          *callbacks->error =  error;
-        return;
-      }
-    }
-
-    /* prepare room for 3 points: 2 off-curve, 1 on-curve */
-    error = cff_check_points( builder, 3 );
-    if ( error )
-    {
-      if ( !*callbacks->error )
-        *callbacks->error =  error;
-      return;
-    }
-
-    cff_builder_add_point( builder,
-                           params->pt1.x,
-                           params->pt1.y, 0 );
-    cff_builder_add_point( builder,
-                           params->pt2.x,
-                           params->pt2.y, 0 );
-    cff_builder_add_point( builder,
-                           params->pt3.x,
-                           params->pt3.y, 1 );
-  }
-
-
-  static void
-  cf2_outline_init( CF2_Outline  outline,
-                    FT_Memory    memory,
-                    FT_Error*    error )
-  {
-    FT_ZERO( outline );
-
-    outline->root.memory = memory;
-    outline->root.error  = error;
-
-    outline->root.moveTo = cf2_builder_moveTo;
-    outline->root.lineTo = cf2_builder_lineTo;
-    outline->root.cubeTo = cf2_builder_cubeTo;
-  }
-
-
-  /* get scaling and hint flag from GlyphSlot */
-  static void
-  cf2_getScaleAndHintFlag( CFF_Decoder*  decoder,
-                           CF2_Fixed*    x_scale,
-                           CF2_Fixed*    y_scale,
-                           FT_Bool*      hinted,
-                           FT_Bool*      scaled )
-  {
-    FT_ASSERT( decoder && decoder->builder.glyph );
-
-    /* note: FreeType scale includes a factor of 64 */
-    *hinted = decoder->builder.glyph->hint;
-    *scaled = decoder->builder.glyph->scaled;
-
-    if ( *hinted )
-    {
-      *x_scale = ADD_INT32( decoder->builder.glyph->x_scale, 32 ) / 64;
-      *y_scale = ADD_INT32( decoder->builder.glyph->y_scale, 32 ) / 64;
-    }
-    else
-    {
-      /* for unhinted outlines, `cff_slot_load' does the scaling, */
-      /* thus render at `unity' scale                             */
-
-      *x_scale = 0x0400;   /* 1/64 as 16.16 */
-      *y_scale = 0x0400;
-    }
-  }
-
-
-  /* get units per em from `FT_Face' */
-  /* TODO: should handle font matrix concatenation? */
-  static FT_UShort
-  cf2_getUnitsPerEm( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->builder.face );
-    FT_ASSERT( decoder->builder.face->root.units_per_EM );
-
-    return decoder->builder.face->root.units_per_EM;
-  }
-
-
-  /* Main entry point: Render one glyph. */
-  FT_LOCAL_DEF( FT_Error )
-  cf2_decoder_parse_charstrings( CFF_Decoder*  decoder,
-                                 FT_Byte*      charstring_base,
-                                 FT_ULong      charstring_len )
-  {
-    FT_Memory  memory;
-    FT_Error   error = FT_Err_Ok;
-    CF2_Font   font;
-
-
-    FT_ASSERT( decoder && decoder->cff );
-
-    memory = decoder->builder.memory;
-
-    /* CF2 data is saved here across glyphs */
-    font = (CF2_Font)decoder->cff->cf2_instance.data;
-
-    /* on first glyph, allocate instance structure */
-    if ( !decoder->cff->cf2_instance.data )
-    {
-      decoder->cff->cf2_instance.finalizer =
-        (FT_Generic_Finalizer)cf2_free_instance;
-
-      if ( FT_ALLOC( decoder->cff->cf2_instance.data,
-                     sizeof ( CF2_FontRec ) ) )
-        return FT_THROW( Out_Of_Memory );
-
-      font = (CF2_Font)decoder->cff->cf2_instance.data;
-
-      font->memory = memory;
-
-      /* initialize a client outline, to be shared by each glyph rendered */
-      cf2_outline_init( &font->outline, font->memory, &font->error );
-    }
-
-    /* save decoder; it is a stack variable and will be different on each */
-    /* call                                                               */
-    font->decoder         = decoder;
-    font->outline.decoder = decoder;
-
-    {
-      /* build parameters for Adobe engine */
-
-      CFF_Builder*  builder = &decoder->builder;
-      CFF_Driver    driver  = (CFF_Driver)FT_FACE_DRIVER( builder->face );
-
-      FT_Bool  no_stem_darkening_driver =
-                 driver->no_stem_darkening;
-      FT_Char  no_stem_darkening_font =
-                 builder->face->root.internal->no_stem_darkening;
-
-      /* local error */
-      FT_Error       error2 = FT_Err_Ok;
-      CF2_BufferRec  buf;
-      CF2_Matrix     transform;
-      CF2_F16Dot16   glyphWidth;
-
-      FT_Bool  hinted;
-      FT_Bool  scaled;
-
-
-      /* FreeType has already looked up the GID; convert to         */
-      /* `RegionBuffer', assuming that the input has been validated */
-      FT_ASSERT( charstring_base + charstring_len >= charstring_base );
-
-      FT_ZERO( &buf );
-      buf.start =
-      buf.ptr   = charstring_base;
-      buf.end   = charstring_base + charstring_len;
-
-      FT_ZERO( &transform );
-
-      cf2_getScaleAndHintFlag( decoder,
-                               &transform.a,
-                               &transform.d,
-                               &hinted,
-                               &scaled );
-
-      /* copy isCFF2 boolean from TT_Face to CF2_Font */
-      font->isCFF2 = builder->face->is_cff2;
-
-      font->renderingFlags = 0;
-      if ( hinted )
-        font->renderingFlags |= CF2_FlagsHinted;
-      if ( scaled && ( !no_stem_darkening_font        ||
-                       ( no_stem_darkening_font < 0 &&
-                         !no_stem_darkening_driver  ) ) )
-        font->renderingFlags |= CF2_FlagsDarkened;
-
-      font->darkenParams[0] = driver->darken_params[0];
-      font->darkenParams[1] = driver->darken_params[1];
-      font->darkenParams[2] = driver->darken_params[2];
-      font->darkenParams[3] = driver->darken_params[3];
-      font->darkenParams[4] = driver->darken_params[4];
-      font->darkenParams[5] = driver->darken_params[5];
-      font->darkenParams[6] = driver->darken_params[6];
-      font->darkenParams[7] = driver->darken_params[7];
-
-      /* now get an outline for this glyph;      */
-      /* also get units per em to validate scale */
-      font->unitsPerEm = (CF2_Int)cf2_getUnitsPerEm( decoder );
-
-      if ( scaled )
-      {
-        error2 = cf2_checkTransform( &transform, font->unitsPerEm );
-        if ( error2 )
-          return error2;
-      }
-
-      error2 = cf2_getGlyphOutline( font, &buf, &transform, &glyphWidth );
-      if ( error2 )
-        return FT_ERR( Invalid_File_Format );
-
-      cf2_setGlyphWidth( &font->outline, glyphWidth );
-
-      return FT_Err_Ok;
-    }
-  }
-
-
-  /* get pointer to current FreeType subfont (based on current glyphID) */
-  FT_LOCAL_DEF( CFF_SubFont )
-  cf2_getSubfont( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    return decoder->current_subfont;
-  }
-
-
-  /* get pointer to VStore structure */
-  FT_LOCAL_DEF( CFF_VStore )
-  cf2_getVStore( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->cff );
-
-    return &decoder->cff->vstore;
-  }
-
-
-  /* get maxstack value from CFF2 Top DICT */
-  FT_LOCAL_DEF( FT_UInt )
-  cf2_getMaxstack( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->cff );
-
-    return decoder->cff->top_font.font_dict.maxstack;
-  }
-
-
-#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-  /* Get normalized design vector for current render request; */
-  /* return pointer and length.                               */
-  /*                                                          */
-  /* Note: Uses FT_Fixed not CF2_Fixed for the vector.        */
-  FT_LOCAL_DEF( FT_Error )
-  cf2_getNormalizedVector( CFF_Decoder*  decoder,
-                           CF2_UInt     *len,
-                           FT_Fixed*    *vec )
-  {
-    FT_ASSERT( decoder && decoder->builder.face );
-    FT_ASSERT( vec && len );
-
-    return cff_get_var_blend( decoder->builder.face, len, NULL, vec, NULL );
-  }
-#endif
-
-
-  /* get `y_ppem' from `CFF_Size' */
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_getPpemY( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder                          &&
-               decoder->builder.face            &&
-               decoder->builder.face->root.size );
-
-    /*
-     * Note that `y_ppem' can be zero if there wasn't a call to
-     * `FT_Set_Char_Size' or something similar.  However, this isn't a
-     * problem since we come to this place in the code only if
-     * FT_LOAD_NO_SCALE is set (the other case gets caught by
-     * `cf2_checkTransform').  The ppem value is needed to compute the stem
-     * darkening, which is disabled for getting the unscaled outline.
-     *
-     */
-    return cf2_intToFixed(
-             decoder->builder.face->root.size->metrics.y_ppem );
-  }
-
-
-  /* get standard stem widths for the current subfont; */
-  /* FreeType stores these as integer font units       */
-  /* (note: variable names seem swapped)               */
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_getStdVW( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    return cf2_intToFixed(
-             decoder->current_subfont->private_dict.standard_height );
-  }
-
-
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_getStdHW( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    return cf2_intToFixed(
-             decoder->current_subfont->private_dict.standard_width );
-  }
-
-
-  /* note: FreeType stores 1000 times the actual value for `BlueScale' */
-  FT_LOCAL_DEF( void )
-  cf2_getBlueMetrics( CFF_Decoder*  decoder,
-                      CF2_Fixed*    blueScale,
-                      CF2_Fixed*    blueShift,
-                      CF2_Fixed*    blueFuzz )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    *blueScale = FT_DivFix(
-                   decoder->current_subfont->private_dict.blue_scale,
-                   cf2_intToFixed( 1000 ) );
-    *blueShift = cf2_intToFixed(
-                   decoder->current_subfont->private_dict.blue_shift );
-    *blueFuzz  = cf2_intToFixed(
-                   decoder->current_subfont->private_dict.blue_fuzz );
-  }
-
-
-  /* get blue values counts and arrays; the FreeType parser has validated */
-  /* the counts and verified that each is an even number                  */
-  FT_LOCAL_DEF( void )
-  cf2_getBlueValues( CFF_Decoder*  decoder,
-                     size_t*       count,
-                     FT_Pos*      *data )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    *count = decoder->current_subfont->private_dict.num_blue_values;
-    *data  = (FT_Pos*)
-               &decoder->current_subfont->private_dict.blue_values;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_getOtherBlues( CFF_Decoder*  decoder,
-                     size_t*       count,
-                     FT_Pos*      *data )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    *count = decoder->current_subfont->private_dict.num_other_blues;
-    *data  = (FT_Pos*)
-               &decoder->current_subfont->private_dict.other_blues;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_getFamilyBlues( CFF_Decoder*  decoder,
-                      size_t*       count,
-                      FT_Pos*      *data )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    *count = decoder->current_subfont->private_dict.num_family_blues;
-    *data  = (FT_Pos*)
-               &decoder->current_subfont->private_dict.family_blues;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_getFamilyOtherBlues( CFF_Decoder*  decoder,
-                           size_t*       count,
-                           FT_Pos*      *data )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    *count = decoder->current_subfont->private_dict.num_family_other_blues;
-    *data  = (FT_Pos*)
-               &decoder->current_subfont->private_dict.family_other_blues;
-  }
-
-
-  FT_LOCAL_DEF( CF2_Int )
-  cf2_getLanguageGroup( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    return decoder->current_subfont->private_dict.language_group;
-  }
-
-
-  /* convert unbiased subroutine index to `CF2_Buffer' and */
-  /* return 0 on success                                   */
-  FT_LOCAL_DEF( CF2_Int )
-  cf2_initGlobalRegionBuffer( CFF_Decoder*  decoder,
-                              CF2_Int       subrNum,
-                              CF2_Buffer    buf )
-  {
-    CF2_UInt  idx;
-
-
-    FT_ASSERT( decoder );
-
-    FT_ZERO( buf );
-
-    idx = (CF2_UInt)( subrNum + decoder->globals_bias );
-    if ( idx >= decoder->num_globals )
-      return TRUE;     /* error */
-
-    FT_ASSERT( decoder->globals );
-
-    buf->start =
-    buf->ptr   = decoder->globals[idx];
-    buf->end   = decoder->globals[idx + 1];
-
-    return FALSE;      /* success */
-  }
-
-
-  /* convert AdobeStandardEncoding code to CF2_Buffer; */
-  /* used for seac component                           */
-  FT_LOCAL_DEF( FT_Error )
-  cf2_getSeacComponent( CFF_Decoder*  decoder,
-                        CF2_Int       code,
-                        CF2_Buffer    buf )
-  {
-    CF2_Int   gid;
-    FT_Byte*  charstring;
-    FT_ULong  len;
-    FT_Error  error;
-
-
-    FT_ASSERT( decoder );
-
-    FT_ZERO( buf );
-
-#ifdef FT_CONFIG_OPTION_INCREMENTAL
-    /* Incremental fonts don't necessarily have valid charsets.        */
-    /* They use the character code, not the glyph index, in this case. */
-    if ( decoder->builder.face->root.internal->incremental_interface )
-      gid = code;
-    else
-#endif /* FT_CONFIG_OPTION_INCREMENTAL */
-    {
-      gid = cff_lookup_glyph_by_stdcharcode( decoder->cff, code );
-      if ( gid < 0 )
-        return FT_THROW( Invalid_Glyph_Format );
-    }
-
-    error = cff_get_glyph_data( decoder->builder.face,
-                                (CF2_UInt)gid,
-                                &charstring,
-                                &len );
-    /* TODO: for now, just pass the FreeType error through */
-    if ( error )
-      return error;
-
-    /* assume input has been validated */
-    FT_ASSERT( charstring + len >= charstring );
-
-    buf->start = charstring;
-    buf->end   = charstring + len;
-    buf->ptr   = buf->start;
-
-    return FT_Err_Ok;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_freeSeacComponent( CFF_Decoder*  decoder,
-                         CF2_Buffer    buf )
-  {
-    FT_ASSERT( decoder );
-
-    cff_free_glyph_data( decoder->builder.face,
-                         (FT_Byte**)&buf->start,
-                         (FT_ULong)( buf->end - buf->start ) );
-  }
-
-
-  FT_LOCAL_DEF( CF2_Int )
-  cf2_initLocalRegionBuffer( CFF_Decoder*  decoder,
-                             CF2_Int       subrNum,
-                             CF2_Buffer    buf )
-  {
-    CF2_UInt  idx;
-
-
-    FT_ASSERT( decoder );
-
-    FT_ZERO( buf );
-
-    idx = (CF2_UInt)( subrNum + decoder->locals_bias );
-    if ( idx >= decoder->num_locals )
-      return TRUE;     /* error */
-
-    FT_ASSERT( decoder->locals );
-
-    buf->start =
-    buf->ptr   = decoder->locals[idx];
-    buf->end   = decoder->locals[idx + 1];
-
-    return FALSE;      /* success */
-  }
-
-
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_getDefaultWidthX( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    return cf2_intToFixed(
-             decoder->current_subfont->private_dict.default_width );
-  }
-
-
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_getNominalWidthX( CFF_Decoder*  decoder )
-  {
-    FT_ASSERT( decoder && decoder->current_subfont );
-
-    return cf2_intToFixed(
-             decoder->current_subfont->private_dict.nominal_width );
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_outline_reset( CF2_Outline  outline )
-  {
-    CFF_Decoder*  decoder = outline->decoder;
-
-
-    FT_ASSERT( decoder );
-
-    outline->root.windingMomentum = 0;
-
-    FT_GlyphLoader_Rewind( decoder->builder.loader );
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_outline_close( CF2_Outline  outline )
-  {
-    CFF_Decoder*  decoder = outline->decoder;
-
-
-    FT_ASSERT( decoder );
-
-    cff_builder_close_contour( &decoder->builder );
-
-    FT_GlyphLoader_Add( decoder->builder.loader );
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2ft.h b/thirdparty/freetype/src/cff/cf2ft.h
deleted file mode 100644
index b054a6e950..0000000000
--- a/thirdparty/freetype/src/cff/cf2ft.h
+++ /dev/null
@@ -1,159 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2ft.h                                                                */
-/*                                                                         */
-/*    FreeType Glue Component to Adobe's Interpreter (specification).      */
-/*                                                                         */
-/*  Copyright 2013 Adobe Systems Incorporated.                             */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2FT_H_
-#define CF2FT_H_
-
-
-#include "cf2types.h"
-
-
-  /* TODO: disable asserts for now */
-#define CF2_NDEBUG
-
-
-#include FT_SYSTEM_H
-
-#include "cf2glue.h"
-#include "cffgload.h"    /* for CFF_Decoder */
-
-
-FT_BEGIN_HEADER
-
-
-  FT_LOCAL( FT_Error )
-  cf2_decoder_parse_charstrings( CFF_Decoder*  decoder,
-                                 FT_Byte*      charstring_base,
-                                 FT_ULong      charstring_len );
-
-  FT_LOCAL( CFF_SubFont )
-  cf2_getSubfont( CFF_Decoder*  decoder );
-
-  FT_LOCAL( CFF_VStore )
-  cf2_getVStore( CFF_Decoder*  decoder );
-
-  FT_LOCAL( FT_UInt )
-  cf2_getMaxstack( CFF_Decoder*  decoder );
-
-#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-  FT_LOCAL( FT_Error )
-  cf2_getNormalizedVector( CFF_Decoder*  decoder,
-                           CF2_UInt     *len,
-                           FT_Fixed*    *vec );
-#endif
-
-  FT_LOCAL( CF2_Fixed )
-  cf2_getPpemY( CFF_Decoder*  decoder );
-  FT_LOCAL( CF2_Fixed )
-  cf2_getStdVW( CFF_Decoder*  decoder );
-  FT_LOCAL( CF2_Fixed )
-  cf2_getStdHW( CFF_Decoder*  decoder );
-
-  FT_LOCAL( void )
-  cf2_getBlueMetrics( CFF_Decoder*  decoder,
-                      CF2_Fixed*    blueScale,
-                      CF2_Fixed*    blueShift,
-                      CF2_Fixed*    blueFuzz );
-  FT_LOCAL( void )
-  cf2_getBlueValues( CFF_Decoder*  decoder,
-                     size_t*       count,
-                     FT_Pos*      *data );
-  FT_LOCAL( void )
-  cf2_getOtherBlues( CFF_Decoder*  decoder,
-                     size_t*       count,
-                     FT_Pos*      *data );
-  FT_LOCAL( void )
-  cf2_getFamilyBlues( CFF_Decoder*  decoder,
-                      size_t*       count,
-                      FT_Pos*      *data );
-  FT_LOCAL( void )
-  cf2_getFamilyOtherBlues( CFF_Decoder*  decoder,
-                           size_t*       count,
-                           FT_Pos*      *data );
-
-  FT_LOCAL( CF2_Int )
-  cf2_getLanguageGroup( CFF_Decoder*  decoder );
-
-  FT_LOCAL( CF2_Int )
-  cf2_initGlobalRegionBuffer( CFF_Decoder*  decoder,
-                              CF2_Int       subrNum,
-                              CF2_Buffer    buf );
-  FT_LOCAL( FT_Error )
-  cf2_getSeacComponent( CFF_Decoder*  decoder,
-                        CF2_Int       code,
-                        CF2_Buffer    buf );
-  FT_LOCAL( void )
-  cf2_freeSeacComponent( CFF_Decoder*  decoder,
-                         CF2_Buffer    buf );
-  FT_LOCAL( CF2_Int )
-  cf2_initLocalRegionBuffer( CFF_Decoder*  decoder,
-                             CF2_Int       subrNum,
-                             CF2_Buffer    buf );
-
-  FT_LOCAL( CF2_Fixed )
-  cf2_getDefaultWidthX( CFF_Decoder*  decoder );
-  FT_LOCAL( CF2_Fixed )
-  cf2_getNominalWidthX( CFF_Decoder*  decoder );
-
-
-  /*
-   * FreeType client outline
-   *
-   * process output from the charstring interpreter
-   */
-  typedef struct  CF2_OutlineRec_
-  {
-    CF2_OutlineCallbacksRec  root;        /* base class must be first */
-    CFF_Decoder*             decoder;
-
-  } CF2_OutlineRec, *CF2_Outline;
-
-
-  FT_LOCAL( void )
-  cf2_outline_reset( CF2_Outline  outline );
-  FT_LOCAL( void )
-  cf2_outline_close( CF2_Outline  outline );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2FT_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2glue.h b/thirdparty/freetype/src/cff/cf2glue.h
deleted file mode 100644
index 56a7c248f4..0000000000
--- a/thirdparty/freetype/src/cff/cf2glue.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2glue.h                                                              */
-/*                                                                         */
-/*    Adobe's code for shared stuff (specification only).                  */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2GLUE_H_
-#define CF2GLUE_H_
-
-
-/* common includes for other modules */
-#include "cf2error.h"
-#include "cf2fixed.h"
-#include "cf2arrst.h"
-#include "cf2read.h"
-
-
-FT_BEGIN_HEADER
-
-
-  /* rendering parameters */
-
-  /* apply hints to rendered glyphs */
-#define CF2_FlagsHinted    1
-  /* for testing */
-#define CF2_FlagsDarkened  2
-
-  /* type for holding the flags */
-  typedef CF2_Int  CF2_RenderingFlags;
-
-
-  /* elements of a glyph outline */
-  typedef enum  CF2_PathOp_
-  {
-    CF2_PathOpMoveTo = 1,     /* change the current point */
-    CF2_PathOpLineTo = 2,     /* line                     */
-    CF2_PathOpQuadTo = 3,     /* quadratic curve          */
-    CF2_PathOpCubeTo = 4      /* cubic curve              */
-
-  } CF2_PathOp;
-
-
-  /* a matrix of fixed point values */
-  typedef struct  CF2_Matrix_
-  {
-    CF2_F16Dot16  a;
-    CF2_F16Dot16  b;
-    CF2_F16Dot16  c;
-    CF2_F16Dot16  d;
-    CF2_F16Dot16  tx;
-    CF2_F16Dot16  ty;
-
-  } CF2_Matrix;
-
-
-  /* these typedefs are needed by more than one header file */
-  /* and gcc compiler doesn't allow redefinition            */
-  typedef struct CF2_FontRec_  CF2_FontRec, *CF2_Font;
-  typedef struct CF2_HintRec_  CF2_HintRec, *CF2_Hint;
-
-
-  /* A common structure for all callback parameters.                       */
-  /*                                                                       */
-  /* Some members may be unused.  For example, `pt0' is not used for       */
-  /* `moveTo' and `pt3' is not used for `quadTo'.  The initial point `pt0' */
-  /* is included for each path element for generality; curve conversions   */
-  /* need it.  The `op' parameter allows one function to handle multiple   */
-  /* element types.                                                        */
-
-  typedef struct  CF2_CallbackParamsRec_
-  {
-    FT_Vector  pt0;
-    FT_Vector  pt1;
-    FT_Vector  pt2;
-    FT_Vector  pt3;
-
-    CF2_Int  op;
-
-  } CF2_CallbackParamsRec, *CF2_CallbackParams;
-
-
-  /* forward reference */
-  typedef struct CF2_OutlineCallbacksRec_  CF2_OutlineCallbacksRec,
-                                           *CF2_OutlineCallbacks;
-
-  /* callback function pointers */
-  typedef void
-  (*CF2_Callback_Type)( CF2_OutlineCallbacks      callbacks,
-                        const CF2_CallbackParams  params );
-
-
-  struct  CF2_OutlineCallbacksRec_
-  {
-    CF2_Callback_Type  moveTo;
-    CF2_Callback_Type  lineTo;
-    CF2_Callback_Type  quadTo;
-    CF2_Callback_Type  cubeTo;
-
-    CF2_Int  windingMomentum;    /* for winding order detection */
-
-    FT_Memory  memory;
-    FT_Error*  error;
-  };
-
-
-FT_END_HEADER
-
-
-#endif /* CF2GLUE_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2hints.c b/thirdparty/freetype/src/cff/cf2hints.c
deleted file mode 100644
index 656eb2cff1..0000000000
--- a/thirdparty/freetype/src/cff/cf2hints.c
+++ /dev/null
@@ -1,1875 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2hints.c                                                             */
-/*                                                                         */
-/*    Adobe's code for handling CFF hints (body).                          */
-/*                                                                         */
-/*  Copyright 2007-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2glue.h"
-#include "cf2font.h"
-#include "cf2hints.h"
-#include "cf2intrp.h"
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
-#undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cf2hints
-
-
-  typedef struct  CF2_HintMoveRec_
-  {
-    size_t     j;          /* index of upper hint map edge   */
-    CF2_Fixed  moveUp;     /* adjustment to optimum position */
-
-  } CF2_HintMoveRec, *CF2_HintMove;
-
-
-  /* Compute angular momentum for winding order detection.  It is called */
-  /* for all lines and curves, but not necessarily in element order.     */
-  static CF2_Int
-  cf2_getWindingMomentum( CF2_Fixed  x1,
-                          CF2_Fixed  y1,
-                          CF2_Fixed  x2,
-                          CF2_Fixed  y2 )
-  {
-    /* cross product of pt1 position from origin with pt2 position from  */
-    /* pt1; we reduce the precision so that the result fits into 32 bits */
-
-    return ( x1 >> 16 ) * ( SUB_INT32( y2, y1 ) >> 16 ) -
-           ( y1 >> 16 ) * ( SUB_INT32( x2, x1 ) >> 16 );
-  }
-
-
-  /*
-   * Construct from a StemHint; this is used as a parameter to
-   * `cf2_blues_capture'.
-   * `hintOrigin' is the character space displacement of a seac accent.
-   * Adjust stem hint for darkening here.
-   *
-   */
-  static void
-  cf2_hint_init( CF2_Hint            hint,
-                 const CF2_ArrStack  stemHintArray,
-                 size_t              indexStemHint,
-                 const CF2_Font      font,
-                 CF2_Fixed           hintOrigin,
-                 CF2_Fixed           scale,
-                 FT_Bool             bottom )
-  {
-    CF2_Fixed               width;
-    const CF2_StemHintRec*  stemHint;
-
-
-    FT_ZERO( hint );
-
-    stemHint = (const CF2_StemHintRec*)cf2_arrstack_getPointer(
-                                         stemHintArray,
-                                         indexStemHint );
-
-    width = SUB_INT32( stemHint->max, stemHint->min );
-
-    if ( width == cf2_intToFixed( -21 ) )
-    {
-      /* ghost bottom */
-
-      if ( bottom )
-      {
-        hint->csCoord = stemHint->max;
-        hint->flags   = CF2_GhostBottom;
-      }
-      else
-        hint->flags = 0;
-    }
-
-    else if ( width == cf2_intToFixed( -20 ) )
-    {
-      /* ghost top */
-
-      if ( bottom )
-        hint->flags = 0;
-      else
-      {
-        hint->csCoord = stemHint->min;
-        hint->flags   = CF2_GhostTop;
-      }
-    }
-
-    else if ( width < 0 )
-    {
-      /* inverted pair */
-
-      /*
-       * Hints with negative widths were produced by an early version of a
-       * non-Adobe font tool.  The Type 2 spec allows edge (ghost) hints
-       * with negative widths, but says
-       *
-       *   All other negative widths have undefined meaning.
-       *
-       * CoolType has a silent workaround that negates the hint width; for
-       * permissive mode, we do the same here.
-       *
-       * Note: Such fonts cannot use ghost hints, but should otherwise work.
-       * Note: Some poor hints in our faux fonts can produce negative
-       *       widths at some blends.  For example, see a light weight of
-       *       `u' in ASerifMM.
-       *
-       */
-      if ( bottom )
-      {
-        hint->csCoord = stemHint->max;
-        hint->flags   = CF2_PairBottom;
-      }
-      else
-      {
-        hint->csCoord = stemHint->min;
-        hint->flags   = CF2_PairTop;
-      }
-    }
-
-    else
-    {
-      /* normal pair */
-
-      if ( bottom )
-      {
-        hint->csCoord = stemHint->min;
-        hint->flags   = CF2_PairBottom;
-      }
-      else
-      {
-        hint->csCoord = stemHint->max;
-        hint->flags   = CF2_PairTop;
-      }
-    }
-
-    /* Now that ghost hints have been detected, adjust this edge for      */
-    /* darkening.  Bottoms are not changed; tops are incremented by twice */
-    /* `darkenY'.                                                         */
-    if ( cf2_hint_isTop( hint ) )
-      hint->csCoord = ADD_INT32( hint->csCoord, 2 * font->darkenY );
-
-    hint->csCoord = ADD_INT32( hint->csCoord, hintOrigin );
-    hint->scale   = scale;
-    hint->index   = indexStemHint;   /* index in original stem hint array */
-
-    /* if original stem hint has been used, use the same position */
-    if ( hint->flags != 0 && stemHint->used )
-    {
-      if ( cf2_hint_isTop( hint ) )
-        hint->dsCoord = stemHint->maxDS;
-      else
-        hint->dsCoord = stemHint->minDS;
-
-      cf2_hint_lock( hint );
-    }
-    else
-      hint->dsCoord = FT_MulFix( hint->csCoord, scale );
-  }
-
-
-  /* initialize an invalid hint map element */
-  static void
-  cf2_hint_initZero( CF2_Hint  hint )
-  {
-    FT_ZERO( hint );
-  }
-
-
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_hint_isValid( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( hint->flags != 0 );
-  }
-
-
-  static FT_Bool
-  cf2_hint_isPair( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( ( hint->flags                      &
-                        ( CF2_PairBottom | CF2_PairTop ) ) != 0 );
-  }
-
-
-  static FT_Bool
-  cf2_hint_isPairTop( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( ( hint->flags & CF2_PairTop ) != 0 );
-  }
-
-
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_hint_isTop( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( ( hint->flags                    &
-                        ( CF2_PairTop | CF2_GhostTop ) ) != 0 );
-  }
-
-
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_hint_isBottom( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( ( hint->flags                          &
-                        ( CF2_PairBottom | CF2_GhostBottom ) ) != 0 );
-  }
-
-
-  static FT_Bool
-  cf2_hint_isLocked( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( ( hint->flags & CF2_Locked ) != 0 );
-  }
-
-
-  static FT_Bool
-  cf2_hint_isSynthetic( const CF2_Hint  hint )
-  {
-    return (FT_Bool)( ( hint->flags & CF2_Synthetic ) != 0 );
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_hint_lock( CF2_Hint  hint )
-  {
-    hint->flags |= CF2_Locked;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_hintmap_init( CF2_HintMap   hintmap,
-                    CF2_Font      font,
-                    CF2_HintMap   initialMap,
-                    CF2_ArrStack  hintMoves,
-                    CF2_Fixed     scale )
-  {
-    FT_ZERO( hintmap );
-
-    /* copy parameters from font instance */
-    hintmap->hinted         = font->hinted;
-    hintmap->scale          = scale;
-    hintmap->font           = font;
-    hintmap->initialHintMap = initialMap;
-    /* will clear in `cf2_hintmap_adjustHints' */
-    hintmap->hintMoves      = hintMoves;
-  }
-
-
-  static FT_Bool
-  cf2_hintmap_isValid( const CF2_HintMap  hintmap )
-  {
-    return hintmap->isValid;
-  }
-
-
-  /* transform character space coordinate to device space using hint map */
-  static CF2_Fixed
-  cf2_hintmap_map( CF2_HintMap  hintmap,
-                   CF2_Fixed    csCoord )
-  {
-    if ( hintmap->count == 0 || ! hintmap->hinted )
-    {
-      /* there are no hints; use uniform scale and zero offset */
-      return FT_MulFix( csCoord, hintmap->scale );
-    }
-    else
-    {
-      /* start linear search from last hit */
-      CF2_UInt  i = hintmap->lastIndex;
-
-
-      FT_ASSERT( hintmap->lastIndex < CF2_MAX_HINT_EDGES );
-
-      /* search up */
-      while ( i < hintmap->count - 1                  &&
-              csCoord >= hintmap->edge[i + 1].csCoord )
-        i += 1;
-
-      /* search down */
-      while ( i > 0 && csCoord < hintmap->edge[i].csCoord )
-        i -= 1;
-
-      hintmap->lastIndex = i;
-
-      if ( i == 0 && csCoord < hintmap->edge[0].csCoord )
-      {
-        /* special case for points below first edge: use uniform scale */
-        return ADD_INT32( FT_MulFix( SUB_INT32( csCoord,
-                                                hintmap->edge[0].csCoord ),
-                                     hintmap->scale ),
-                          hintmap->edge[0].dsCoord );
-      }
-      else
-      {
-        /*
-         * Note: entries with duplicate csCoord are allowed.
-         * Use edge[i], the highest entry where csCoord >= entry[i].csCoord
-         */
-        return ADD_INT32( FT_MulFix( SUB_INT32( csCoord,
-                                                hintmap->edge[i].csCoord ),
-                                     hintmap->edge[i].scale ),
-                          hintmap->edge[i].dsCoord );
-      }
-    }
-  }
-
-
-  /*
-   * This hinting policy moves a hint pair in device space so that one of
-   * its two edges is on a device pixel boundary (its fractional part is
-   * zero).  `cf2_hintmap_insertHint' guarantees no overlap in CS
-   * space.  Ensure here that there is no overlap in DS.
-   *
-   * In the first pass, edges are adjusted relative to adjacent hints.
-   * Those that are below have already been adjusted.  Those that are
-   * above have not yet been adjusted.  If a hint above blocks an
-   * adjustment to an optimal position, we will try again in a second
-   * pass.  The second pass is top-down.
-   *
-   */
-
-  static void
-  cf2_hintmap_adjustHints( CF2_HintMap  hintmap )
-  {
-    size_t  i, j;
-
-
-    cf2_arrstack_clear( hintmap->hintMoves );      /* working storage */
-
-    /*
-     * First pass is bottom-up (font hint order) without look-ahead.
-     * Locked edges are already adjusted.
-     * Unlocked edges begin with dsCoord from `initialHintMap'.
-     * Save edges that are not optimally adjusted in `hintMoves' array,
-     * and process them in second pass.
-     */
-
-    for ( i = 0; i < hintmap->count; i++ )
-    {
-      FT_Bool  isPair = cf2_hint_isPair( &hintmap->edge[i] );
-
-
-      /* index of upper edge (same value for ghost hint) */
-      j = isPair ? i + 1 : i;
-
-      FT_ASSERT( j < hintmap->count );
-      FT_ASSERT( cf2_hint_isValid( &hintmap->edge[i] ) );
-      FT_ASSERT( cf2_hint_isValid( &hintmap->edge[j] ) );
-      FT_ASSERT( cf2_hint_isLocked( &hintmap->edge[i] ) ==
-                   cf2_hint_isLocked( &hintmap->edge[j] ) );
-
-      if ( !cf2_hint_isLocked( &hintmap->edge[i] ) )
-      {
-        /* hint edge is not locked, we can adjust it */
-        CF2_Fixed  fracDown = cf2_fixedFraction( hintmap->edge[i].dsCoord );
-        CF2_Fixed  fracUp   = cf2_fixedFraction( hintmap->edge[j].dsCoord );
-
-        /* calculate all four possibilities; moves down are negative */
-        CF2_Fixed  downMoveDown = 0 - fracDown;
-        CF2_Fixed  upMoveDown   = 0 - fracUp;
-        CF2_Fixed  downMoveUp   = ( fracDown == 0 )
-                                    ? 0
-                                    : cf2_intToFixed( 1 ) - fracDown;
-        CF2_Fixed  upMoveUp     = ( fracUp == 0 )
-                                    ? 0
-                                    : cf2_intToFixed( 1 ) - fracUp;
-
-        /* smallest move up */
-        CF2_Fixed  moveUp   = FT_MIN( downMoveUp, upMoveUp );
-        /* smallest move down */
-        CF2_Fixed  moveDown = FT_MAX( downMoveDown, upMoveDown );
-
-        /* final amount to move edge or edge pair */
-        CF2_Fixed  move;
-
-        CF2_Fixed  downMinCounter = CF2_MIN_COUNTER;
-        CF2_Fixed  upMinCounter   = CF2_MIN_COUNTER;
-        FT_Bool    saveEdge       = FALSE;
-
-
-        /* minimum counter constraint doesn't apply when adjacent edges */
-        /* are synthetic                                                */
-        /* TODO: doesn't seem a big effect; for now, reduce the code    */
-#if 0
-        if ( i == 0                                        ||
-             cf2_hint_isSynthetic( &hintmap->edge[i - 1] ) )
-          downMinCounter = 0;
-
-        if ( j >= hintmap->count - 1                       ||
-             cf2_hint_isSynthetic( &hintmap->edge[j + 1] ) )
-          upMinCounter = 0;
-#endif
-
-        /* is there room to move up?                                    */
-        /* there is if we are at top of array or the next edge is at or */
-        /* beyond proposed move up?                                     */
-        if ( j >= hintmap->count - 1                ||
-             hintmap->edge[j + 1].dsCoord >=
-               ADD_INT32( hintmap->edge[j].dsCoord,
-                          moveUp + upMinCounter )   )
-        {
-          /* there is room to move up; is there also room to move down? */
-          if ( i == 0                                   ||
-               hintmap->edge[i - 1].dsCoord <=
-                 ADD_INT32( hintmap->edge[i].dsCoord,
-                            moveDown - downMinCounter ) )
-          {
-            /* move smaller absolute amount */
-            move = ( -moveDown < moveUp ) ? moveDown : moveUp;  /* optimum */
-          }
-          else
-            move = moveUp;
-        }
-        else
-        {
-          /* is there room to move down? */
-          if ( i == 0                                   ||
-               hintmap->edge[i - 1].dsCoord <=
-                 ADD_INT32( hintmap->edge[i].dsCoord,
-                            moveDown - downMinCounter ) )
-          {
-            move     = moveDown;
-            /* true if non-optimum move */
-            saveEdge = (FT_Bool)( moveUp < -moveDown );
-          }
-          else
-          {
-            /* no room to move either way without overlapping or reducing */
-            /* the counter too much                                       */
-            move     = 0;
-            saveEdge = TRUE;
-          }
-        }
-
-        /* Identify non-moves and moves down that aren't optimal, and save */
-        /* them for second pass.                                           */
-        /* Do this only if there is an unlocked edge above (which could    */
-        /* possibly move).                                                 */
-        if ( saveEdge                                    &&
-             j < hintmap->count - 1                      &&
-             !cf2_hint_isLocked( &hintmap->edge[j + 1] ) )
-        {
-          CF2_HintMoveRec  savedMove;
-
-
-          savedMove.j      = j;
-          /* desired adjustment in second pass */
-          savedMove.moveUp = moveUp - move;
-
-          cf2_arrstack_push( hintmap->hintMoves, &savedMove );
-        }
-
-        /* move the edge(s) */
-        hintmap->edge[i].dsCoord = ADD_INT32( hintmap->edge[i].dsCoord,
-                                              move );
-        if ( isPair )
-          hintmap->edge[j].dsCoord = ADD_INT32( hintmap->edge[j].dsCoord,
-                                                move );
-      }
-
-      /* assert there are no overlaps in device space */
-      FT_ASSERT( i == 0                                                   ||
-                 hintmap->edge[i - 1].dsCoord <= hintmap->edge[i].dsCoord );
-      FT_ASSERT( i < j                                                ||
-                 hintmap->edge[i].dsCoord <= hintmap->edge[j].dsCoord );
-
-      /* adjust the scales, avoiding divide by zero */
-      if ( i > 0 )
-      {
-        if ( hintmap->edge[i].csCoord != hintmap->edge[i - 1].csCoord )
-          hintmap->edge[i - 1].scale =
-            FT_DivFix( SUB_INT32( hintmap->edge[i].dsCoord,
-                                  hintmap->edge[i - 1].dsCoord ),
-                       SUB_INT32( hintmap->edge[i].csCoord,
-                                  hintmap->edge[i - 1].csCoord ) );
-      }
-
-      if ( isPair )
-      {
-        if ( hintmap->edge[j].csCoord != hintmap->edge[j - 1].csCoord )
-          hintmap->edge[j - 1].scale =
-            FT_DivFix( SUB_INT32( hintmap->edge[j].dsCoord,
-                                  hintmap->edge[j - 1].dsCoord ),
-                       SUB_INT32( hintmap->edge[j].csCoord,
-                                  hintmap->edge[j - 1].csCoord ) );
-
-        i += 1;     /* skip upper edge on next loop */
-      }
-    }
-
-    /* second pass tries to move non-optimal hints up, in case there is */
-    /* room now                                                         */
-    for ( i = cf2_arrstack_size( hintmap->hintMoves ); i > 0; i-- )
-    {
-      CF2_HintMove  hintMove = (CF2_HintMove)
-                      cf2_arrstack_getPointer( hintmap->hintMoves, i - 1 );
-
-
-      j = hintMove->j;
-
-      /* this was tested before the push, above */
-      FT_ASSERT( j < hintmap->count - 1 );
-
-      /* is there room to move up? */
-      if ( hintmap->edge[j + 1].dsCoord >=
-             ADD_INT32( hintmap->edge[j].dsCoord,
-                        hintMove->moveUp + CF2_MIN_COUNTER ) )
-      {
-        /* there is more room now, move edge up */
-        hintmap->edge[j].dsCoord = ADD_INT32( hintmap->edge[j].dsCoord,
-                                              hintMove->moveUp );
-
-        if ( cf2_hint_isPair( &hintmap->edge[j] ) )
-        {
-          FT_ASSERT( j > 0 );
-          hintmap->edge[j - 1].dsCoord =
-            ADD_INT32( hintmap->edge[j - 1].dsCoord, hintMove->moveUp );
-        }
-      }
-    }
-  }
-
-
-  /* insert hint edges into map, sorted by csCoord */
-  static void
-  cf2_hintmap_insertHint( CF2_HintMap  hintmap,
-                          CF2_Hint     bottomHintEdge,
-                          CF2_Hint     topHintEdge )
-  {
-    CF2_UInt  indexInsert;
-
-    /* set default values, then check for edge hints */
-    FT_Bool   isPair         = TRUE;
-    CF2_Hint  firstHintEdge  = bottomHintEdge;
-    CF2_Hint  secondHintEdge = topHintEdge;
-
-
-    /* one or none of the input params may be invalid when dealing with */
-    /* edge hints; at least one edge must be valid                      */
-    FT_ASSERT( cf2_hint_isValid( bottomHintEdge ) ||
-               cf2_hint_isValid( topHintEdge )    );
-
-    /* determine how many and which edges to insert */
-    if ( !cf2_hint_isValid( bottomHintEdge ) )
-    {
-      /* insert only the top edge */
-      firstHintEdge = topHintEdge;
-      isPair        = FALSE;
-    }
-    else if ( !cf2_hint_isValid( topHintEdge ) )
-    {
-      /* insert only the bottom edge */
-      isPair = FALSE;
-    }
-
-    /* paired edges must be in proper order */
-    if ( isPair                                         &&
-         topHintEdge->csCoord < bottomHintEdge->csCoord )
-      return;
-
-    /* linear search to find index value of insertion point */
-    indexInsert = 0;
-    for ( ; indexInsert < hintmap->count; indexInsert++ )
-    {
-      if ( hintmap->edge[indexInsert].csCoord >= firstHintEdge->csCoord )
-        break;
-    }
-
-    /*
-     * Discard any hints that overlap in character space.  Most often, this
-     * is while building the initial map, where captured hints from all
-     * zones are combined.  Define overlap to include hints that `touch'
-     * (overlap zero).  Hiragino Sans/Gothic fonts have numerous hints that
-     * touch.  Some fonts have non-ideographic glyphs that overlap our
-     * synthetic hints.
-     *
-     * Overlap also occurs when darkening stem hints that are close.
-     *
-     */
-    if ( indexInsert < hintmap->count )
-    {
-      /* we are inserting before an existing edge:    */
-      /* verify that an existing edge is not the same */
-      if ( hintmap->edge[indexInsert].csCoord == firstHintEdge->csCoord )
-        return; /* ignore overlapping stem hint */
-
-      /* verify that a new pair does not straddle the next edge */
-      if ( isPair                                                        &&
-           hintmap->edge[indexInsert].csCoord <= secondHintEdge->csCoord )
-        return; /* ignore overlapping stem hint */
-
-      /* verify that we are not inserting between paired edges */
-      if ( cf2_hint_isPairTop( &hintmap->edge[indexInsert] ) )
-        return; /* ignore overlapping stem hint */
-    }
-
-    /* recompute device space locations using initial hint map */
-    if ( cf2_hintmap_isValid( hintmap->initialHintMap ) &&
-         !cf2_hint_isLocked( firstHintEdge )            )
-    {
-      if ( isPair )
-      {
-        /* Use hint map to position the center of stem, and nominal scale */
-        /* to position the two edges.  This preserves the stem width.     */
-        CF2_Fixed  midpoint =
-                     cf2_hintmap_map(
-                       hintmap->initialHintMap,
-                       ADD_INT32( secondHintEdge->csCoord,
-                                  firstHintEdge->csCoord ) / 2 );
-        CF2_Fixed  halfWidth =
-                     FT_MulFix( SUB_INT32( secondHintEdge->csCoord,
-                                           firstHintEdge->csCoord ) / 2,
-                                hintmap->scale );
-
-
-        firstHintEdge->dsCoord  = SUB_INT32( midpoint, halfWidth );
-        secondHintEdge->dsCoord = ADD_INT32( midpoint, halfWidth );
-      }
-      else
-        firstHintEdge->dsCoord = cf2_hintmap_map( hintmap->initialHintMap,
-                                                  firstHintEdge->csCoord );
-    }
-
-    /*
-     * Discard any hints that overlap in device space; this can occur
-     * because locked hints have been moved to align with blue zones.
-     *
-     * TODO: Although we might correct this later during adjustment, we
-     * don't currently have a way to delete a conflicting hint once it has
-     * been inserted.  See v2.030 MinionPro-Regular, 12 ppem darkened,
-     * initial hint map for second path, glyph 945 (the perispomeni (tilde)
-     * in U+1F6E, Greek omega with psili and perispomeni).  Darkening is
-     * 25.  Pair 667,747 initially conflicts in design space with top edge
-     * 660.  This is because 667 maps to 7.87, and the top edge was
-     * captured by a zone at 8.0.  The pair is later successfully inserted
-     * in a zone without the top edge.  In this zone it is adjusted to 8.0,
-     * and no longer conflicts with the top edge in design space.  This
-     * means it can be included in yet a later zone which does have the top
-     * edge hint.  This produces a small mismatch between the first and
-     * last points of this path, even though the hint masks are the same.
-     * The density map difference is tiny (1/256).
-     *
-     */
-
-    if ( indexInsert > 0 )
-    {
-      /* we are inserting after an existing edge */
-      if ( firstHintEdge->dsCoord < hintmap->edge[indexInsert - 1].dsCoord )
-        return;
-    }
-
-    if ( indexInsert < hintmap->count )
-    {
-      /* we are inserting before an existing edge */
-      if ( isPair )
-      {
-        if ( secondHintEdge->dsCoord > hintmap->edge[indexInsert].dsCoord )
-          return;
-      }
-      else
-      {
-        if ( firstHintEdge->dsCoord > hintmap->edge[indexInsert].dsCoord )
-          return;
-      }
-    }
-
-    /* make room to insert */
-    {
-      CF2_UInt  iSrc = hintmap->count - 1;
-      CF2_UInt  iDst = isPair ? hintmap->count + 1 : hintmap->count;
-
-      CF2_UInt  count = hintmap->count - indexInsert;
-
-
-      if ( iDst >= CF2_MAX_HINT_EDGES )
-      {
-        FT_TRACE4(( "cf2_hintmap_insertHint: too many hintmaps\n" ));
-        return;
-      }
-
-      while ( count-- )
-        hintmap->edge[iDst--] = hintmap->edge[iSrc--];
-
-      /* insert first edge */
-      hintmap->edge[indexInsert] = *firstHintEdge;         /* copy struct */
-      hintmap->count            += 1;
-
-      if ( isPair )
-      {
-        /* insert second edge */
-        hintmap->edge[indexInsert + 1] = *secondHintEdge;  /* copy struct */
-        hintmap->count                += 1;
-      }
-    }
-
-    return;
-  }
-
-
-  /*
-   * Build a map from hints and mask.
-   *
-   * This function may recur one level if `hintmap->initialHintMap' is not yet
-   * valid.
-   * If `initialMap' is true, simply build initial map.
-   *
-   * Synthetic hints are used in two ways.  A hint at zero is inserted, if
-   * needed, in the initial hint map, to prevent translations from
-   * propagating across the origin.  If synthetic em box hints are enabled
-   * for ideographic dictionaries, then they are inserted in all hint
-   * maps, including the initial one.
-   *
-   */
-  FT_LOCAL_DEF( void )
-  cf2_hintmap_build( CF2_HintMap   hintmap,
-                     CF2_ArrStack  hStemHintArray,
-                     CF2_ArrStack  vStemHintArray,
-                     CF2_HintMask  hintMask,
-                     CF2_Fixed     hintOrigin,
-                     FT_Bool       initialMap )
-  {
-    FT_Byte*  maskPtr;
-
-    CF2_Font         font = hintmap->font;
-    CF2_HintMaskRec  tempHintMask;
-
-    size_t   bitCount, i;
-    FT_Byte  maskByte;
-
-
-    /* check whether initial map is constructed */
-    if ( !initialMap && !cf2_hintmap_isValid( hintmap->initialHintMap ) )
-    {
-      /* make recursive call with initialHintMap and temporary mask; */
-      /* temporary mask will get all bits set, below */
-      cf2_hintmask_init( &tempHintMask, hintMask->error );
-      cf2_hintmap_build( hintmap->initialHintMap,
-                         hStemHintArray,
-                         vStemHintArray,
-                         &tempHintMask,
-                         hintOrigin,
-                         TRUE );
-    }
-
-    if ( !cf2_hintmask_isValid( hintMask ) )
-    {
-      /* without a hint mask, assume all hints are active */
-      cf2_hintmask_setAll( hintMask,
-                           cf2_arrstack_size( hStemHintArray ) +
-                             cf2_arrstack_size( vStemHintArray ) );
-      if ( !cf2_hintmask_isValid( hintMask ) )
-        return;                   /* too many stem hints */
-    }
-
-    /* begin by clearing the map */
-    hintmap->count     = 0;
-    hintmap->lastIndex = 0;
-
-    /* make a copy of the hint mask so we can modify it */
-    tempHintMask = *hintMask;
-    maskPtr      = cf2_hintmask_getMaskPtr( &tempHintMask );
-
-    /* use the hStem hints only, which are first in the mask */
-    bitCount = cf2_arrstack_size( hStemHintArray );
-
-    /* Defense-in-depth.  Should never return here. */
-    if ( bitCount > hintMask->bitCount )
-      return;
-
-    /* synthetic embox hints get highest priority */
-    if ( font->blues.doEmBoxHints )
-    {
-      CF2_HintRec  dummy;
-
-
-      cf2_hint_initZero( &dummy );   /* invalid hint map element */
-
-      /* ghost bottom */
-      cf2_hintmap_insertHint( hintmap,
-                              &font->blues.emBoxBottomEdge,
-                              &dummy );
-      /* ghost top */
-      cf2_hintmap_insertHint( hintmap,
-                              &dummy,
-                              &font->blues.emBoxTopEdge );
-    }
-
-    /* insert hints captured by a blue zone or already locked (higher */
-    /* priority)                                                      */
-    for ( i = 0, maskByte = 0x80; i < bitCount; i++ )
-    {
-      if ( maskByte & *maskPtr )
-      {
-        /* expand StemHint into two `CF2_Hint' elements */
-        CF2_HintRec  bottomHintEdge, topHintEdge;
-
-
-        cf2_hint_init( &bottomHintEdge,
-                       hStemHintArray,
-                       i,
-                       font,
-                       hintOrigin,
-                       hintmap->scale,
-                       TRUE /* bottom */ );
-        cf2_hint_init( &topHintEdge,
-                       hStemHintArray,
-                       i,
-                       font,
-                       hintOrigin,
-                       hintmap->scale,
-                       FALSE /* top */ );
-
-        if ( cf2_hint_isLocked( &bottomHintEdge ) ||
-             cf2_hint_isLocked( &topHintEdge )    ||
-             cf2_blues_capture( &font->blues,
-                                &bottomHintEdge,
-                                &topHintEdge )   )
-        {
-          /* insert captured hint into map */
-          cf2_hintmap_insertHint( hintmap, &bottomHintEdge, &topHintEdge );
-
-          *maskPtr &= ~maskByte;      /* turn off the bit for this hint */
-        }
-      }
-
-      if ( ( i & 7 ) == 7 )
-      {
-        /* move to next mask byte */
-        maskPtr++;
-        maskByte = 0x80;
-      }
-      else
-        maskByte >>= 1;
-    }
-
-    /* initial hint map includes only captured hints plus maybe one at 0 */
-
-    /*
-     * TODO: There is a problem here because we are trying to build a
-     *       single hint map containing all captured hints.  It is
-     *       possible for there to be conflicts between captured hints,
-     *       either because of darkening or because the hints are in
-     *       separate hint zones (we are ignoring hint zones for the
-     *       initial map).  An example of the latter is MinionPro-Regular
-     *       v2.030 glyph 883 (Greek Capital Alpha with Psili) at 15ppem.
-     *       A stem hint for the psili conflicts with the top edge hint
-     *       for the base character.  The stem hint gets priority because
-     *       of its sort order.  In glyph 884 (Greek Capital Alpha with
-     *       Psili and Oxia), the top of the base character gets a stem
-     *       hint, and the psili does not.  This creates different initial
-     *       maps for the two glyphs resulting in different renderings of
-     *       the base character.  Will probably defer this either as not
-     *       worth the cost or as a font bug.  I don't think there is any
-     *       good reason for an accent to be captured by an alignment
-     *       zone.  -darnold 2/12/10
-     */
-
-    if ( initialMap )
-    {
-      /* Apply a heuristic that inserts a point for (0,0), unless it's     */
-      /* already covered by a mapping.  This locks the baseline for glyphs */
-      /* that have no baseline hints.                                      */
-
-      if ( hintmap->count == 0                           ||
-           hintmap->edge[0].csCoord > 0                  ||
-           hintmap->edge[hintmap->count - 1].csCoord < 0 )
-      {
-        /* all edges are above 0 or all edges are below 0; */
-        /* construct a locked edge hint at 0               */
-
-        CF2_HintRec  edge, invalid;
-
-
-        cf2_hint_initZero( &edge );
-
-        edge.flags = CF2_GhostBottom |
-                     CF2_Locked      |
-                     CF2_Synthetic;
-        edge.scale = hintmap->scale;
-
-        cf2_hint_initZero( &invalid );
-        cf2_hintmap_insertHint( hintmap, &edge, &invalid );
-      }
-    }
-    else
-    {
-      /* insert remaining hints */
-
-      maskPtr = cf2_hintmask_getMaskPtr( &tempHintMask );
-
-      for ( i = 0, maskByte = 0x80; i < bitCount; i++ )
-      {
-        if ( maskByte & *maskPtr )
-        {
-          CF2_HintRec  bottomHintEdge, topHintEdge;
-
-
-          cf2_hint_init( &bottomHintEdge,
-                         hStemHintArray,
-                         i,
-                         font,
-                         hintOrigin,
-                         hintmap->scale,
-                         TRUE /* bottom */ );
-          cf2_hint_init( &topHintEdge,
-                         hStemHintArray,
-                         i,
-                         font,
-                         hintOrigin,
-                         hintmap->scale,
-                         FALSE /* top */ );
-
-          cf2_hintmap_insertHint( hintmap, &bottomHintEdge, &topHintEdge );
-        }
-
-        if ( ( i & 7 ) == 7 )
-        {
-          /* move to next mask byte */
-          maskPtr++;
-          maskByte = 0x80;
-        }
-        else
-          maskByte >>= 1;
-      }
-    }
-
-    /*
-     * Note: The following line is a convenient place to break when
-     *       debugging hinting.  Examine `hintmap->edge' for the list of
-     *       enabled hints, then step over the call to see the effect of
-     *       adjustment.  We stop here first on the recursive call that
-     *       creates the initial map, and then on each counter group and
-     *       hint zone.
-     */
-
-    /* adjust positions of hint edges that are not locked to blue zones */
-    cf2_hintmap_adjustHints( hintmap );
-
-    /* save the position of all hints that were used in this hint map; */
-    /* if we use them again, we'll locate them in the same position    */
-    if ( !initialMap )
-    {
-      for ( i = 0; i < hintmap->count; i++ )
-      {
-        if ( !cf2_hint_isSynthetic( &hintmap->edge[i] ) )
-        {
-          /* Note: include both valid and invalid edges            */
-          /* Note: top and bottom edges are copied back separately */
-          CF2_StemHint  stemhint = (CF2_StemHint)
-                          cf2_arrstack_getPointer( hStemHintArray,
-                                                   hintmap->edge[i].index );
-
-
-          if ( cf2_hint_isTop( &hintmap->edge[i] ) )
-            stemhint->maxDS = hintmap->edge[i].dsCoord;
-          else
-            stemhint->minDS = hintmap->edge[i].dsCoord;
-
-          stemhint->used = TRUE;
-        }
-      }
-    }
-
-    /* hint map is ready to use */
-    hintmap->isValid = TRUE;
-
-    /* remember this mask has been used */
-    cf2_hintmask_setNew( hintMask, FALSE );
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_glyphpath_init( CF2_GlyphPath         glyphpath,
-                      CF2_Font              font,
-                      CF2_OutlineCallbacks  callbacks,
-                      CF2_Fixed             scaleY,
-                      /* CF2_Fixed  hShift, */
-                      CF2_ArrStack          hStemHintArray,
-                      CF2_ArrStack          vStemHintArray,
-                      CF2_HintMask          hintMask,
-                      CF2_Fixed             hintOriginY,
-                      const CF2_Blues       blues,
-                      const FT_Vector*      fractionalTranslation )
-  {
-    FT_ZERO( glyphpath );
-
-    glyphpath->font      = font;
-    glyphpath->callbacks = callbacks;
-
-    cf2_arrstack_init( &glyphpath->hintMoves,
-                       font->memory,
-                       &font->error,
-                       sizeof ( CF2_HintMoveRec ) );
-
-    cf2_hintmap_init( &glyphpath->initialHintMap,
-                      font,
-                      &glyphpath->initialHintMap,
-                      &glyphpath->hintMoves,
-                      scaleY );
-    cf2_hintmap_init( &glyphpath->firstHintMap,
-                      font,
-                      &glyphpath->initialHintMap,
-                      &glyphpath->hintMoves,
-                      scaleY );
-    cf2_hintmap_init( &glyphpath->hintMap,
-                      font,
-                      &glyphpath->initialHintMap,
-                      &glyphpath->hintMoves,
-                      scaleY );
-
-    glyphpath->scaleX = font->innerTransform.a;
-    glyphpath->scaleC = font->innerTransform.c;
-    glyphpath->scaleY = font->innerTransform.d;
-
-    glyphpath->fractionalTranslation = *fractionalTranslation;
-
-#if 0
-    glyphpath->hShift = hShift;       /* for fauxing */
-#endif
-
-    glyphpath->hStemHintArray = hStemHintArray;
-    glyphpath->vStemHintArray = vStemHintArray;
-    glyphpath->hintMask       = hintMask;      /* ptr to current mask */
-    glyphpath->hintOriginY    = hintOriginY;
-    glyphpath->blues          = blues;
-    glyphpath->darken         = font->darkened; /* TODO: should we make copies? */
-    glyphpath->xOffset        = font->darkenX;
-    glyphpath->yOffset        = font->darkenY;
-    glyphpath->miterLimit     = 2 * FT_MAX(
-                                     cf2_fixedAbs( glyphpath->xOffset ),
-                                     cf2_fixedAbs( glyphpath->yOffset ) );
-
-    /* .1 character space unit */
-    glyphpath->snapThreshold = cf2_doubleToFixed( 0.1 );
-
-    glyphpath->moveIsPending = TRUE;
-    glyphpath->pathIsOpen    = FALSE;
-    glyphpath->pathIsClosing = FALSE;
-    glyphpath->elemIsQueued  = FALSE;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_glyphpath_finalize( CF2_GlyphPath  glyphpath )
-  {
-    cf2_arrstack_finalize( &glyphpath->hintMoves );
-  }
-
-
-  /*
-   * Hint point in y-direction and apply outerTransform.
-   * Input `current' hint map (which is actually delayed by one element).
-   * Input x,y point in Character Space.
-   * Output x,y point in Device Space, including translation.
-   */
-  static void
-  cf2_glyphpath_hintPoint( CF2_GlyphPath  glyphpath,
-                           CF2_HintMap    hintmap,
-                           FT_Vector*     ppt,
-                           CF2_Fixed      x,
-                           CF2_Fixed      y )
-  {
-    FT_Vector  pt;   /* hinted point in upright DS */
-
-
-    pt.x = ADD_INT32( FT_MulFix( glyphpath->scaleX, x ),
-                      FT_MulFix( glyphpath->scaleC, y ) );
-    pt.y = cf2_hintmap_map( hintmap, y );
-
-    ppt->x = ADD_INT32(
-               FT_MulFix( glyphpath->font->outerTransform.a, pt.x ),
-               ADD_INT32(
-                 FT_MulFix( glyphpath->font->outerTransform.c, pt.y ),
-                 glyphpath->fractionalTranslation.x ) );
-    ppt->y = ADD_INT32(
-               FT_MulFix( glyphpath->font->outerTransform.b, pt.x ),
-               ADD_INT32(
-                 FT_MulFix( glyphpath->font->outerTransform.d, pt.y ),
-                 glyphpath->fractionalTranslation.y ) );
-  }
-
-
-  /*
-   * From two line segments, (u1,u2) and (v1,v2), compute a point of
-   * intersection on the corresponding lines.
-   * Return false if no intersection is found, or if the intersection is
-   * too far away from the ends of the line segments, u2 and v1.
-   *
-   */
-  static FT_Bool
-  cf2_glyphpath_computeIntersection( CF2_GlyphPath     glyphpath,
-                                     const FT_Vector*  u1,
-                                     const FT_Vector*  u2,
-                                     const FT_Vector*  v1,
-                                     const FT_Vector*  v2,
-                                     FT_Vector*        intersection )
-  {
-    /*
-     * Let `u' be a zero-based vector from the first segment, `v' from the
-     * second segment.
-     * Let `w 'be the zero-based vector from `u1' to `v1'.
-     * `perp' is the `perpendicular dot product'; see
-     * http://mathworld.wolfram.com/PerpDotProduct.html.
-     * `s' is the parameter for the parametric line for the first segment
-     * (`u').
-     *
-     * See notation in
-     * http://softsurfer.com/Archive/algorithm_0104/algorithm_0104B.htm.
-     * Calculations are done in 16.16, but must handle the squaring of
-     * line lengths in character space.  We scale all vectors by 1/32 to
-     * avoid overflow.  This allows values up to 4095 to be squared.  The
-     * scale factor cancels in the divide.
-     *
-     * TODO: the scale factor could be computed from UnitsPerEm.
-     *
-     */
-
-#define cf2_perp( a, b )                                    \
-          ( FT_MulFix( a.x, b.y ) - FT_MulFix( a.y, b.x ) )
-
-  /* round and divide by 32 */
-#define CF2_CS_SCALE( x )         \
-          ( ( (x) + 0x10 ) >> 5 )
-
-    FT_Vector  u, v, w;      /* scaled vectors */
-    CF2_Fixed  denominator, s;
-
-
-    u.x = CF2_CS_SCALE( SUB_INT32( u2->x, u1->x ) );
-    u.y = CF2_CS_SCALE( SUB_INT32( u2->y, u1->y ) );
-    v.x = CF2_CS_SCALE( SUB_INT32( v2->x, v1->x ) );
-    v.y = CF2_CS_SCALE( SUB_INT32( v2->y, v1->y ) );
-    w.x = CF2_CS_SCALE( SUB_INT32( v1->x, u1->x ) );
-    w.y = CF2_CS_SCALE( SUB_INT32( v1->y, u1->y ) );
-
-    denominator = cf2_perp( u, v );
-
-    if ( denominator == 0 )
-      return FALSE;           /* parallel or coincident lines */
-
-    s = FT_DivFix( cf2_perp( w, v ), denominator );
-
-    intersection->x = ADD_INT32( u1->x,
-                                 FT_MulFix( s, SUB_INT32( u2->x, u1->x ) ) );
-    intersection->y = ADD_INT32( u1->y,
-                                 FT_MulFix( s, SUB_INT32( u2->y, u1->y ) ) );
-
-
-    /*
-     * Special case snapping for horizontal and vertical lines.
-     * This cleans up intersections and reduces problems with winding
-     * order detection.
-     * Sample case is sbc cd KozGoPr6N-Medium.otf 20 16685.
-     * Note: these calculations are in character space.
-     *
-     */
-
-    if ( u1->x == u2->x                                                &&
-         cf2_fixedAbs( SUB_INT32( intersection->x,
-                                  u1->x ) ) < glyphpath->snapThreshold )
-      intersection->x = u1->x;
-    if ( u1->y == u2->y                                                &&
-         cf2_fixedAbs( SUB_INT32( intersection->y,
-                                  u1->y ) ) < glyphpath->snapThreshold )
-      intersection->y = u1->y;
-
-    if ( v1->x == v2->x                                                &&
-         cf2_fixedAbs( SUB_INT32( intersection->x,
-                                  v1->x ) ) < glyphpath->snapThreshold )
-      intersection->x = v1->x;
-    if ( v1->y == v2->y                                                &&
-         cf2_fixedAbs( SUB_INT32( intersection->y,
-                                  v1->y ) ) < glyphpath->snapThreshold )
-      intersection->y = v1->y;
-
-    /* limit the intersection distance from midpoint of u2 and v1 */
-    if ( cf2_fixedAbs( intersection->x - ADD_INT32( u2->x, v1->x ) / 2 ) >
-           glyphpath->miterLimit                                           ||
-         cf2_fixedAbs( intersection->y - ADD_INT32( u2->y, v1->y ) / 2 ) >
-           glyphpath->miterLimit                                           )
-      return FALSE;
-
-    return TRUE;
-  }
-
-
-  /*
-   * Push the cached element (glyphpath->prevElem*) to the outline
-   * consumer.  When a darkening offset is used, the end point of the
-   * cached element may be adjusted to an intersection point or we may
-   * synthesize a connecting line to the current element.  If we are
-   * closing a subpath, we may also generate a connecting line to the start
-   * point.
-   *
-   * This is where Character Space (CS) is converted to Device Space (DS)
-   * using a hint map.  This calculation must use a HintMap that was valid
-   * at the time the element was saved.  For the first point in a subpath,
-   * that is a saved HintMap.  For most elements, it just means the caller
-   * has delayed building a HintMap from the current HintMask.
-   *
-   * Transform each point with outerTransform and call the outline
-   * callbacks.  This is a general 3x3 transform:
-   *
-   *   x' = a*x + c*y + tx, y' = b*x + d*y + ty
-   *
-   * but it uses 4 elements from CF2_Font and the translation part
-   * from CF2_GlyphPath.
-   *
-   */
-  static void
-  cf2_glyphpath_pushPrevElem( CF2_GlyphPath  glyphpath,
-                              CF2_HintMap    hintmap,
-                              FT_Vector*     nextP0,
-                              FT_Vector      nextP1,
-                              FT_Bool        close )
-  {
-    CF2_CallbackParamsRec  params;
-
-    FT_Vector*  prevP0;
-    FT_Vector*  prevP1;
-
-    FT_Vector  intersection    = { 0, 0 };
-    FT_Bool    useIntersection = FALSE;
-
-
-    FT_ASSERT( glyphpath->prevElemOp == CF2_PathOpLineTo ||
-               glyphpath->prevElemOp == CF2_PathOpCubeTo );
-
-    if ( glyphpath->prevElemOp == CF2_PathOpLineTo )
-    {
-      prevP0 = &glyphpath->prevElemP0;
-      prevP1 = &glyphpath->prevElemP1;
-    }
-    else
-    {
-      prevP0 = &glyphpath->prevElemP2;
-      prevP1 = &glyphpath->prevElemP3;
-    }
-
-    /* optimization: if previous and next elements are offset by the same */
-    /* amount, then there will be no gap, and no need to compute an       */
-    /* intersection.                                                      */
-    if ( prevP1->x != nextP0->x || prevP1->y != nextP0->y )
-    {
-      /* previous element does not join next element:             */
-      /* adjust end point of previous element to the intersection */
-      useIntersection = cf2_glyphpath_computeIntersection( glyphpath,
-                                                           prevP0,
-                                                           prevP1,
-                                                           nextP0,
-                                                           &nextP1,
-                                                           &intersection );
-      if ( useIntersection )
-      {
-        /* modify the last point of the cached element (either line or */
-        /* curve)                                                      */
-        *prevP1 = intersection;
-      }
-    }
-
-    params.pt0 = glyphpath->currentDS;
-
-    switch( glyphpath->prevElemOp )
-    {
-    case CF2_PathOpLineTo:
-      params.op = CF2_PathOpLineTo;
-
-      /* note: pt2 and pt3 are unused */
-
-      if ( close )
-      {
-        /* use first hint map if closing */
-        cf2_glyphpath_hintPoint( glyphpath,
-                                 &glyphpath->firstHintMap,
-                                 &params.pt1,
-                                 glyphpath->prevElemP1.x,
-                                 glyphpath->prevElemP1.y );
-      }
-      else
-      {
-        cf2_glyphpath_hintPoint( glyphpath,
-                                 hintmap,
-                                 &params.pt1,
-                                 glyphpath->prevElemP1.x,
-                                 glyphpath->prevElemP1.y );
-      }
-
-      /* output only non-zero length lines */
-      if ( params.pt0.x != params.pt1.x || params.pt0.y != params.pt1.y )
-      {
-        glyphpath->callbacks->lineTo( glyphpath->callbacks, &params );
-
-        glyphpath->currentDS = params.pt1;
-      }
-      break;
-
-    case CF2_PathOpCubeTo:
-      params.op = CF2_PathOpCubeTo;
-
-      /* TODO: should we intersect the interior joins (p1-p2 and p2-p3)? */
-      cf2_glyphpath_hintPoint( glyphpath,
-                               hintmap,
-                               &params.pt1,
-                               glyphpath->prevElemP1.x,
-                               glyphpath->prevElemP1.y );
-      cf2_glyphpath_hintPoint( glyphpath,
-                               hintmap,
-                               &params.pt2,
-                               glyphpath->prevElemP2.x,
-                               glyphpath->prevElemP2.y );
-      cf2_glyphpath_hintPoint( glyphpath,
-                               hintmap,
-                               &params.pt3,
-                               glyphpath->prevElemP3.x,
-                               glyphpath->prevElemP3.y );
-
-      glyphpath->callbacks->cubeTo( glyphpath->callbacks, &params );
-
-      glyphpath->currentDS = params.pt3;
-
-      break;
-    }
-
-    if ( !useIntersection || close )
-    {
-      /* insert connecting line between end of previous element and start */
-      /* of current one                                                   */
-      /* note: at the end of a subpath, we might do both, so use `nextP0' */
-      /* before we change it, below                                       */
-
-      if ( close )
-      {
-        /* if we are closing the subpath, then nextP0 is in the first     */
-        /* hint zone                                                      */
-        cf2_glyphpath_hintPoint( glyphpath,
-                                 &glyphpath->firstHintMap,
-                                 &params.pt1,
-                                 nextP0->x,
-                                 nextP0->y );
-      }
-      else
-      {
-        cf2_glyphpath_hintPoint( glyphpath,
-                                 hintmap,
-                                 &params.pt1,
-                                 nextP0->x,
-                                 nextP0->y );
-      }
-
-      if ( params.pt1.x != glyphpath->currentDS.x ||
-           params.pt1.y != glyphpath->currentDS.y )
-      {
-        /* length is nonzero */
-        params.op  = CF2_PathOpLineTo;
-        params.pt0 = glyphpath->currentDS;
-
-        /* note: pt2 and pt3 are unused */
-        glyphpath->callbacks->lineTo( glyphpath->callbacks, &params );
-
-        glyphpath->currentDS = params.pt1;
-      }
-    }
-
-    if ( useIntersection )
-    {
-      /* return intersection point to caller */
-      *nextP0 = intersection;
-    }
-  }
-
-
-  /* push a MoveTo element based on current point and offset of current */
-  /* element                                                            */
-  static void
-  cf2_glyphpath_pushMove( CF2_GlyphPath  glyphpath,
-                          FT_Vector      start )
-  {
-    CF2_CallbackParamsRec  params;
-
-
-    params.op  = CF2_PathOpMoveTo;
-    params.pt0 = glyphpath->currentDS;
-
-    /* Test if move has really happened yet; it would have called */
-    /* `cf2_hintmap_build' to set `isValid'.                   */
-    if ( !cf2_hintmap_isValid( &glyphpath->hintMap ) )
-    {
-      /* we are here iff first subpath is missing a moveto operator: */
-      /* synthesize first moveTo to finish initialization of hintMap */
-      cf2_glyphpath_moveTo( glyphpath,
-                            glyphpath->start.x,
-                            glyphpath->start.y );
-    }
-
-    cf2_glyphpath_hintPoint( glyphpath,
-                             &glyphpath->hintMap,
-                             &params.pt1,
-                             start.x,
-                             start.y );
-
-    /* note: pt2 and pt3 are unused */
-    glyphpath->callbacks->moveTo( glyphpath->callbacks, &params );
-
-    glyphpath->currentDS    = params.pt1;
-    glyphpath->offsetStart0 = start;
-  }
-
-
-  /*
-   * All coordinates are in character space.
-   * On input, (x1, y1) and (x2, y2) give line segment.
-   * On output, (x, y) give offset vector.
-   * We use a piecewise approximation to trig functions.
-   *
-   * TODO: Offset true perpendicular and proper length
-   *       supply the y-translation for hinting here, too,
-   *       that adds yOffset unconditionally to *y.
-   */
-  static void
-  cf2_glyphpath_computeOffset( CF2_GlyphPath  glyphpath,
-                               CF2_Fixed      x1,
-                               CF2_Fixed      y1,
-                               CF2_Fixed      x2,
-                               CF2_Fixed      y2,
-                               CF2_Fixed*     x,
-                               CF2_Fixed*     y )
-  {
-    CF2_Fixed  dx = SUB_INT32( x2, x1 );
-    CF2_Fixed  dy = SUB_INT32( y2, y1 );
-
-
-    /* note: negative offsets don't work here; negate deltas to change */
-    /* quadrants, below                                                */
-    if ( glyphpath->font->reverseWinding )
-    {
-      dx = NEG_INT32( dx );
-      dy = NEG_INT32( dy );
-    }
-
-    *x = *y = 0;
-
-    if ( !glyphpath->darken )
-        return;
-
-    /* add momentum for this path element */
-    glyphpath->callbacks->windingMomentum =
-      ADD_INT32( glyphpath->callbacks->windingMomentum,
-                 cf2_getWindingMomentum( x1, y1, x2, y2 ) );
-
-    /* note: allow mixed integer and fixed multiplication here */
-    if ( dx >= 0 )
-    {
-      if ( dy >= 0 )
-      {
-        /* first quadrant, +x +y */
-
-        if ( dx > MUL_INT32( 2, dy ) )
-        {
-          /* +x */
-          *x = 0;
-          *y = 0;
-        }
-        else if ( dy > MUL_INT32( 2, dx ) )
-        {
-          /* +y */
-          *x = glyphpath->xOffset;
-          *y = glyphpath->yOffset;
-        }
-        else
-        {
-          /* +x +y */
-          *x = FT_MulFix( cf2_doubleToFixed( 0.7 ),
-                          glyphpath->xOffset );
-          *y = FT_MulFix( cf2_doubleToFixed( 1.0 - 0.7 ),
-                          glyphpath->yOffset );
-        }
-      }
-      else
-      {
-        /* fourth quadrant, +x -y */
-
-        if ( dx > MUL_INT32( -2, dy ) )
-        {
-          /* +x */
-          *x = 0;
-          *y = 0;
-        }
-        else if ( NEG_INT32( dy ) > MUL_INT32( 2, dx ) )
-        {
-          /* -y */
-          *x = NEG_INT32( glyphpath->xOffset );
-          *y = glyphpath->yOffset;
-        }
-        else
-        {
-          /* +x -y */
-          *x = FT_MulFix( cf2_doubleToFixed( -0.7 ),
-                          glyphpath->xOffset );
-          *y = FT_MulFix( cf2_doubleToFixed( 1.0 - 0.7 ),
-                          glyphpath->yOffset );
-        }
-      }
-    }
-    else
-    {
-      if ( dy >= 0 )
-      {
-        /* second quadrant, -x +y */
-
-        if ( NEG_INT32( dx ) > MUL_INT32( 2, dy ) )
-        {
-          /* -x */
-          *x = 0;
-          *y = MUL_INT32( 2, glyphpath->yOffset );
-        }
-        else if ( dy > MUL_INT32( -2, dx ) )
-        {
-          /* +y */
-          *x = glyphpath->xOffset;
-          *y = glyphpath->yOffset;
-        }
-        else
-        {
-          /* -x +y */
-          *x = FT_MulFix( cf2_doubleToFixed( 0.7 ),
-                          glyphpath->xOffset );
-          *y = FT_MulFix( cf2_doubleToFixed( 1.0 + 0.7 ),
-                          glyphpath->yOffset );
-        }
-      }
-      else
-      {
-        /* third quadrant, -x -y */
-
-        if ( NEG_INT32( dx ) > MUL_INT32( -2, dy ) )
-        {
-          /* -x */
-          *x = 0;
-          *y = MUL_INT32( 2, glyphpath->yOffset );
-        }
-        else if ( NEG_INT32( dy ) > MUL_INT32( -2, dx ) )
-        {
-          /* -y */
-          *x = NEG_INT32( glyphpath->xOffset );
-          *y = glyphpath->yOffset;
-        }
-        else
-        {
-          /* -x -y */
-          *x = FT_MulFix( cf2_doubleToFixed( -0.7 ),
-                          glyphpath->xOffset );
-          *y = FT_MulFix( cf2_doubleToFixed( 1.0 + 0.7 ),
-                          glyphpath->yOffset );
-        }
-      }
-    }
-  }
-
-
-  /*
-   * The functions cf2_glyphpath_{moveTo,lineTo,curveTo,closeOpenPath} are
-   * called by the interpreter with Character Space (CS) coordinates.  Each
-   * path element is placed into a queue of length one to await the
-   * calculation of the following element.  At that time, the darkening
-   * offset of the following element is known and joins can be computed,
-   * including possible modification of this element, before mapping to
-   * Device Space (DS) and passing it on to the outline consumer.
-   *
-   */
-  FT_LOCAL_DEF( void )
-  cf2_glyphpath_moveTo( CF2_GlyphPath  glyphpath,
-                        CF2_Fixed      x,
-                        CF2_Fixed      y )
-  {
-    cf2_glyphpath_closeOpenPath( glyphpath );
-
-    /* save the parameters of the move for later, when we'll know how to */
-    /* offset it;                                                        */
-    /* also save last move point */
-    glyphpath->currentCS.x = glyphpath->start.x = x;
-    glyphpath->currentCS.y = glyphpath->start.y = y;
-
-    glyphpath->moveIsPending = TRUE;
-
-    /* ensure we have a valid map with current mask */
-    if ( !cf2_hintmap_isValid( &glyphpath->hintMap ) ||
-         cf2_hintmask_isNew( glyphpath->hintMask )   )
-      cf2_hintmap_build( &glyphpath->hintMap,
-                         glyphpath->hStemHintArray,
-                         glyphpath->vStemHintArray,
-                         glyphpath->hintMask,
-                         glyphpath->hintOriginY,
-                         FALSE );
-
-    /* save a copy of current HintMap to use when drawing initial point */
-    glyphpath->firstHintMap = glyphpath->hintMap;     /* structure copy */
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_glyphpath_lineTo( CF2_GlyphPath  glyphpath,
-                        CF2_Fixed      x,
-                        CF2_Fixed      y )
-  {
-    CF2_Fixed  xOffset, yOffset;
-    FT_Vector  P0, P1;
-    FT_Bool    newHintMap;
-
-    /*
-     * New hints will be applied after cf2_glyphpath_pushPrevElem has run.
-     * In case this is a synthesized closing line, any new hints should be
-     * delayed until this path is closed (`cf2_hintmask_isNew' will be
-     * called again before the next line or curve).
-     */
-
-    /* true if new hint map not on close */
-    newHintMap = cf2_hintmask_isNew( glyphpath->hintMask ) &&
-                 !glyphpath->pathIsClosing;
-
-    /*
-     * Zero-length lines may occur in the charstring.  Because we cannot
-     * compute darkening offsets or intersections from zero-length lines,
-     * it is best to remove them and avoid artifacts.  However, zero-length
-     * lines in CS at the start of a new hint map can generate non-zero
-     * lines in DS due to hint substitution.  We detect a change in hint
-     * map here and pass those zero-length lines along.
-     */
-
-    /*
-     * Note: Find explicitly closed paths here with a conditional
-     *       breakpoint using
-     *
-     *         !gp->pathIsClosing && gp->start.x == x && gp->start.y == y
-     *
-     */
-
-    if ( glyphpath->currentCS.x == x &&
-         glyphpath->currentCS.y == y &&
-         !newHintMap                 )
-      /*
-       * Ignore zero-length lines in CS where the hint map is the same
-       * because the line in DS will also be zero length.
-       *
-       * Ignore zero-length lines when we synthesize a closing line because
-       * the close will be handled in cf2_glyphPath_pushPrevElem.
-       */
-      return;
-
-    cf2_glyphpath_computeOffset( glyphpath,
-                                 glyphpath->currentCS.x,
-                                 glyphpath->currentCS.y,
-                                 x,
-                                 y,
-                                 &xOffset,
-                                 &yOffset );
-
-    /* construct offset points */
-    P0.x = ADD_INT32( glyphpath->currentCS.x, xOffset );
-    P0.y = ADD_INT32( glyphpath->currentCS.y, yOffset );
-    P1.x = ADD_INT32( x, xOffset );
-    P1.y = ADD_INT32( y, yOffset );
-
-    if ( glyphpath->moveIsPending )
-    {
-      /* emit offset 1st point as MoveTo */
-      cf2_glyphpath_pushMove( glyphpath, P0 );
-
-      glyphpath->moveIsPending = FALSE;  /* adjust state machine */
-      glyphpath->pathIsOpen    = TRUE;
-
-      glyphpath->offsetStart1 = P1;              /* record second point */
-    }
-
-    if ( glyphpath->elemIsQueued )
-    {
-      FT_ASSERT( cf2_hintmap_isValid( &glyphpath->hintMap ) ||
-                 glyphpath->hintMap.count == 0              );
-
-      cf2_glyphpath_pushPrevElem( glyphpath,
-                                  &glyphpath->hintMap,
-                                  &P0,
-                                  P1,
-                                  FALSE );
-    }
-
-    /* queue the current element with offset points */
-    glyphpath->elemIsQueued = TRUE;
-    glyphpath->prevElemOp   = CF2_PathOpLineTo;
-    glyphpath->prevElemP0   = P0;
-    glyphpath->prevElemP1   = P1;
-
-    /* update current map */
-    if ( newHintMap )
-      cf2_hintmap_build( &glyphpath->hintMap,
-                         glyphpath->hStemHintArray,
-                         glyphpath->vStemHintArray,
-                         glyphpath->hintMask,
-                         glyphpath->hintOriginY,
-                         FALSE );
-
-    glyphpath->currentCS.x = x;     /* pre-offset current point */
-    glyphpath->currentCS.y = y;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_glyphpath_curveTo( CF2_GlyphPath  glyphpath,
-                         CF2_Fixed      x1,
-                         CF2_Fixed      y1,
-                         CF2_Fixed      x2,
-                         CF2_Fixed      y2,
-                         CF2_Fixed      x3,
-                         CF2_Fixed      y3 )
-  {
-    CF2_Fixed  xOffset1, yOffset1, xOffset3, yOffset3;
-    FT_Vector  P0, P1, P2, P3;
-
-
-    /* TODO: ignore zero length portions of curve?? */
-    cf2_glyphpath_computeOffset( glyphpath,
-                                 glyphpath->currentCS.x,
-                                 glyphpath->currentCS.y,
-                                 x1,
-                                 y1,
-                                 &xOffset1,
-                                 &yOffset1 );
-    cf2_glyphpath_computeOffset( glyphpath,
-                                 x2,
-                                 y2,
-                                 x3,
-                                 y3,
-                                 &xOffset3,
-                                 &yOffset3 );
-
-    /* add momentum from the middle segment */
-    glyphpath->callbacks->windingMomentum =
-      ADD_INT32( glyphpath->callbacks->windingMomentum,
-                 cf2_getWindingMomentum( x1, y1, x2, y2 ) );
-
-    /* construct offset points */
-    P0.x = ADD_INT32( glyphpath->currentCS.x, xOffset1 );
-    P0.y = ADD_INT32( glyphpath->currentCS.y, yOffset1 );
-    P1.x = ADD_INT32( x1, xOffset1 );
-    P1.y = ADD_INT32( y1, yOffset1 );
-    /* note: preserve angle of final segment by using offset3 at both ends */
-    P2.x = ADD_INT32( x2, xOffset3 );
-    P2.y = ADD_INT32( y2, yOffset3 );
-    P3.x = ADD_INT32( x3, xOffset3 );
-    P3.y = ADD_INT32( y3, yOffset3 );
-
-    if ( glyphpath->moveIsPending )
-    {
-      /* emit offset 1st point as MoveTo */
-      cf2_glyphpath_pushMove( glyphpath, P0 );
-
-      glyphpath->moveIsPending = FALSE;
-      glyphpath->pathIsOpen    = TRUE;
-
-      glyphpath->offsetStart1 = P1;              /* record second point */
-    }
-
-    if ( glyphpath->elemIsQueued )
-    {
-      FT_ASSERT( cf2_hintmap_isValid( &glyphpath->hintMap ) ||
-                 glyphpath->hintMap.count == 0              );
-
-      cf2_glyphpath_pushPrevElem( glyphpath,
-                                  &glyphpath->hintMap,
-                                  &P0,
-                                  P1,
-                                  FALSE );
-    }
-
-    /* queue the current element with offset points */
-    glyphpath->elemIsQueued = TRUE;
-    glyphpath->prevElemOp   = CF2_PathOpCubeTo;
-    glyphpath->prevElemP0   = P0;
-    glyphpath->prevElemP1   = P1;
-    glyphpath->prevElemP2   = P2;
-    glyphpath->prevElemP3   = P3;
-
-    /* update current map */
-    if ( cf2_hintmask_isNew( glyphpath->hintMask ) )
-      cf2_hintmap_build( &glyphpath->hintMap,
-                         glyphpath->hStemHintArray,
-                         glyphpath->vStemHintArray,
-                         glyphpath->hintMask,
-                         glyphpath->hintOriginY,
-                         FALSE );
-
-    glyphpath->currentCS.x = x3;       /* pre-offset current point */
-    glyphpath->currentCS.y = y3;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_glyphpath_closeOpenPath( CF2_GlyphPath  glyphpath )
-  {
-    if ( glyphpath->pathIsOpen )
-    {
-      /*
-       * A closing line in Character Space line is always generated below
-       * with `cf2_glyphPath_lineTo'.  It may be ignored later if it turns
-       * out to be zero length in Device Space.
-       */
-      glyphpath->pathIsClosing = TRUE;
-
-      cf2_glyphpath_lineTo( glyphpath,
-                            glyphpath->start.x,
-                            glyphpath->start.y );
-
-      /* empty the final element from the queue and close the path */
-      if ( glyphpath->elemIsQueued )
-        cf2_glyphpath_pushPrevElem( glyphpath,
-                                    &glyphpath->hintMap,
-                                    &glyphpath->offsetStart0,
-                                    glyphpath->offsetStart1,
-                                    TRUE );
-
-      /* reset state machine */
-      glyphpath->moveIsPending = TRUE;
-      glyphpath->pathIsOpen    = FALSE;
-      glyphpath->pathIsClosing = FALSE;
-      glyphpath->elemIsQueued  = FALSE;
-    }
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2hints.h b/thirdparty/freetype/src/cff/cf2hints.h
deleted file mode 100644
index a8984542a0..0000000000
--- a/thirdparty/freetype/src/cff/cf2hints.h
+++ /dev/null
@@ -1,289 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2hints.h                                                             */
-/*                                                                         */
-/*    Adobe's code for handling CFF hints (body).                          */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2HINTS_H_
-#define CF2HINTS_H_
-
-
-FT_BEGIN_HEADER
-
-
-  enum
-  {
-    CF2_MAX_HINTS = 96    /* maximum # of hints */
-  };
-
-
-  /*
-   * A HintMask object stores a bit mask that specifies which hints in the
-   * charstring are active at a given time.  Hints in CFF must be declared
-   * at the start, before any drawing operators, with horizontal hints
-   * preceding vertical hints.  The HintMask is ordered the same way, with
-   * horizontal hints immediately followed by vertical hints.  Clients are
-   * responsible for knowing how many of each type are present.
-   *
-   * The maximum total number of hints is 96, as specified by the CFF
-   * specification.
-   *
-   * A HintMask is built 0 or more times while interpreting a charstring, by
-   * the HintMask operator.  There is only one HintMask, but it is built or
-   * rebuilt each time there is a hint substitution (HintMask operator) in
-   * the charstring.  A default HintMask with all bits set is built if there
-   * has been no HintMask operator prior to the first drawing operator.
-   *
-   */
-
-  typedef struct  CF2_HintMaskRec_
-  {
-    FT_Error*  error;
-
-    FT_Bool  isValid;
-    FT_Bool  isNew;
-
-    size_t  bitCount;
-    size_t  byteCount;
-
-    FT_Byte  mask[( CF2_MAX_HINTS + 7 ) / 8];
-
-  } CF2_HintMaskRec, *CF2_HintMask;
-
-
-  typedef struct  CF2_StemHintRec_
-  {
-    FT_Bool  used;     /* DS positions are valid         */
-
-    CF2_Fixed  min;    /* original character space value */
-    CF2_Fixed  max;
-
-    CF2_Fixed  minDS;  /* DS position after first use    */
-    CF2_Fixed  maxDS;
-
-  } CF2_StemHintRec, *CF2_StemHint;
-
-
-  /*
-   * A HintMap object stores a piecewise linear function for mapping
-   * y-coordinates from character space to device space, providing
-   * appropriate pixel alignment to stem edges.
-   *
-   * The map is implemented as an array of `CF2_Hint' elements, each
-   * representing an edge.  When edges are paired, as from stem hints, the
-   * bottom edge must immediately precede the top edge in the array.
-   * Element character space AND device space positions must both increase
-   * monotonically in the array.  `CF2_Hint' elements are also used as
-   * parameters to `cf2_blues_capture'.
-   *
-   * The `cf2_hintmap_build' method must be called before any drawing
-   * operation (beginning with a Move operator) and at each hint
-   * substitution (HintMask operator).
-   *
-   * The `cf2_hintmap_map' method is called to transform y-coordinates at
-   * each drawing operation (move, line, curve).
-   *
-   */
-
-  /* TODO: make this a CF2_ArrStack and add a deep copy method */
-  enum
-  {
-    CF2_MAX_HINT_EDGES = CF2_MAX_HINTS * 2
-  };
-
-
-  typedef struct  CF2_HintMapRec_
-  {
-    CF2_Font  font;
-
-    /* initial map based on blue zones */
-    struct CF2_HintMapRec_*  initialHintMap;
-
-    /* working storage for 2nd pass adjustHints */
-    CF2_ArrStack  hintMoves;
-
-    FT_Bool  isValid;
-    FT_Bool  hinted;
-
-    CF2_Fixed  scale;
-    CF2_UInt   count;
-
-    /* start search from this index */
-    CF2_UInt  lastIndex;
-
-    CF2_HintRec  edge[CF2_MAX_HINT_EDGES]; /* 192 */
-
-  } CF2_HintMapRec, *CF2_HintMap;
-
-
-  FT_LOCAL( FT_Bool )
-  cf2_hint_isValid( const CF2_Hint  hint );
-  FT_LOCAL( FT_Bool )
-  cf2_hint_isTop( const CF2_Hint  hint );
-  FT_LOCAL( FT_Bool )
-  cf2_hint_isBottom( const CF2_Hint  hint );
-  FT_LOCAL( void )
-  cf2_hint_lock( CF2_Hint  hint );
-
-
-  FT_LOCAL( void )
-  cf2_hintmap_init( CF2_HintMap   hintmap,
-                    CF2_Font      font,
-                    CF2_HintMap   initialMap,
-                    CF2_ArrStack  hintMoves,
-                    CF2_Fixed     scale );
-  FT_LOCAL( void )
-  cf2_hintmap_build( CF2_HintMap   hintmap,
-                     CF2_ArrStack  hStemHintArray,
-                     CF2_ArrStack  vStemHintArray,
-                     CF2_HintMask  hintMask,
-                     CF2_Fixed     hintOrigin,
-                     FT_Bool       initialMap );
-
-
-  /*
-   * GlyphPath is a wrapper for drawing operations that scales the
-   * coordinates according to the render matrix and HintMap.  It also tracks
-   * open paths to control ClosePath and to insert MoveTo for broken fonts.
-   *
-   */
-  typedef struct  CF2_GlyphPathRec_
-  {
-    /* TODO: gather some of these into a hinting context */
-
-    CF2_Font              font;           /* font instance    */
-    CF2_OutlineCallbacks  callbacks;      /* outline consumer */
-
-
-    CF2_HintMapRec  hintMap;        /* current hint map            */
-    CF2_HintMapRec  firstHintMap;   /* saved copy                  */
-    CF2_HintMapRec  initialHintMap; /* based on all captured hints */
-
-    CF2_ArrStackRec  hintMoves;  /* list of hint moves for 2nd pass */
-
-    CF2_Fixed  scaleX;         /* matrix a */
-    CF2_Fixed  scaleC;         /* matrix c */
-    CF2_Fixed  scaleY;         /* matrix d */
-
-    FT_Vector  fractionalTranslation;  /* including deviceXScale */
-#if 0
-    CF2_Fixed  hShift;    /* character space horizontal shift */
-                          /* (for fauxing)                    */
-#endif
-
-    FT_Bool  pathIsOpen;     /* true after MoveTo                     */
-    FT_Bool  pathIsClosing;  /* true when synthesizing closepath line */
-    FT_Bool  darken;         /* true if stem darkening                */
-    FT_Bool  moveIsPending;  /* true between MoveTo and offset MoveTo */
-
-    /* references used to call `cf2_hintmap_build', if necessary */
-    CF2_ArrStack         hStemHintArray;
-    CF2_ArrStack         vStemHintArray;
-    CF2_HintMask         hintMask;     /* ptr to the current mask */
-    CF2_Fixed            hintOriginY;  /* copy of current origin  */
-    const CF2_BluesRec*  blues;
-
-    CF2_Fixed  xOffset;        /* character space offsets */
-    CF2_Fixed  yOffset;
-
-    /* character space miter limit threshold */
-    CF2_Fixed  miterLimit;
-    /* vertical/horizontal snap distance in character space */
-    CF2_Fixed  snapThreshold;
-
-    FT_Vector  offsetStart0;  /* first and second points of first */
-    FT_Vector  offsetStart1;  /* element with offset applied      */
-
-    /* current point, character space, before offset */
-    FT_Vector  currentCS;
-    /* current point, device space */
-    FT_Vector  currentDS;
-    /* start point of subpath, character space */
-    FT_Vector  start;
-
-    /* the following members constitute the `queue' of one element */
-    FT_Bool  elemIsQueued;
-    CF2_Int  prevElemOp;
-
-    FT_Vector  prevElemP0;
-    FT_Vector  prevElemP1;
-    FT_Vector  prevElemP2;
-    FT_Vector  prevElemP3;
-
-  } CF2_GlyphPathRec, *CF2_GlyphPath;
-
-
-  FT_LOCAL( void )
-  cf2_glyphpath_init( CF2_GlyphPath         glyphpath,
-                      CF2_Font              font,
-                      CF2_OutlineCallbacks  callbacks,
-                      CF2_Fixed             scaleY,
-                      /* CF2_Fixed hShift, */
-                      CF2_ArrStack          hStemHintArray,
-                      CF2_ArrStack          vStemHintArray,
-                      CF2_HintMask          hintMask,
-                      CF2_Fixed             hintOrigin,
-                      const CF2_Blues       blues,
-                      const FT_Vector*      fractionalTranslation );
-  FT_LOCAL( void )
-  cf2_glyphpath_finalize( CF2_GlyphPath  glyphpath );
-
-  FT_LOCAL( void )
-  cf2_glyphpath_moveTo( CF2_GlyphPath  glyphpath,
-                        CF2_Fixed      x,
-                        CF2_Fixed      y );
-  FT_LOCAL( void )
-  cf2_glyphpath_lineTo( CF2_GlyphPath  glyphpath,
-                        CF2_Fixed      x,
-                        CF2_Fixed      y );
-  FT_LOCAL( void )
-  cf2_glyphpath_curveTo( CF2_GlyphPath  glyphpath,
-                         CF2_Fixed      x1,
-                         CF2_Fixed      y1,
-                         CF2_Fixed      x2,
-                         CF2_Fixed      y2,
-                         CF2_Fixed      x3,
-                         CF2_Fixed      y3 );
-  FT_LOCAL( void )
-  cf2_glyphpath_closeOpenPath( CF2_GlyphPath  glyphpath );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2HINTS_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2intrp.c b/thirdparty/freetype/src/cff/cf2intrp.c
deleted file mode 100644
index a816280748..0000000000
--- a/thirdparty/freetype/src/cff/cf2intrp.c
+++ /dev/null
@@ -1,1959 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2intrp.c                                                             */
-/*                                                                         */
-/*    Adobe's CFF Interpreter (body).                                      */
-/*                                                                         */
-/*  Copyright 2007-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2glue.h"
-#include "cf2font.h"
-#include "cf2stack.h"
-#include "cf2hints.h"
-#include "cf2intrp.h"
-
-#include "cf2error.h"
-
-#include "cffload.h"
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
-#undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cf2interp
-
-
-  FT_LOCAL_DEF( void )
-  cf2_hintmask_init( CF2_HintMask  hintmask,
-                     FT_Error*     error )
-  {
-    FT_ZERO( hintmask );
-
-    hintmask->error = error;
-  }
-
-
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_hintmask_isValid( const CF2_HintMask  hintmask )
-  {
-    return hintmask->isValid;
-  }
-
-
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_hintmask_isNew( const CF2_HintMask  hintmask )
-  {
-    return hintmask->isNew;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_hintmask_setNew( CF2_HintMask  hintmask,
-                       FT_Bool       val )
-  {
-    hintmask->isNew = val;
-  }
-
-
-  /* clients call `getMaskPtr' in order to iterate */
-  /* through hint mask                             */
-
-  FT_LOCAL_DEF( FT_Byte* )
-  cf2_hintmask_getMaskPtr( CF2_HintMask  hintmask )
-  {
-    return hintmask->mask;
-  }
-
-
-  static size_t
-  cf2_hintmask_setCounts( CF2_HintMask  hintmask,
-                          size_t        bitCount )
-  {
-    if ( bitCount > CF2_MAX_HINTS )
-    {
-      /* total of h and v stems must be <= 96 */
-      CF2_SET_ERROR( hintmask->error, Invalid_Glyph_Format );
-      return 0;
-    }
-
-    hintmask->bitCount  = bitCount;
-    hintmask->byteCount = ( hintmask->bitCount + 7 ) / 8;
-
-    hintmask->isValid = TRUE;
-    hintmask->isNew   = TRUE;
-
-    return bitCount;
-  }
-
-
-  /* consume the hintmask bytes from the charstring, advancing the src */
-  /* pointer                                                           */
-  static void
-  cf2_hintmask_read( CF2_HintMask  hintmask,
-                     CF2_Buffer    charstring,
-                     size_t        bitCount )
-  {
-    size_t  i;
-
-#ifndef CF2_NDEBUG
-    /* these are the bits in the final mask byte that should be zero  */
-    /* Note: this variable is only used in an assert expression below */
-    /* and then only if CF2_NDEBUG is not defined                     */
-    CF2_UInt  mask = ( 1 << ( -(CF2_Int)bitCount & 7 ) ) - 1;
-#endif
-
-
-    /* initialize counts and isValid */
-    if ( cf2_hintmask_setCounts( hintmask, bitCount ) == 0 )
-      return;
-
-    FT_ASSERT( hintmask->byteCount > 0 );
-
-    FT_TRACE4(( " (maskbytes:" ));
-
-    /* set mask and advance interpreter's charstring pointer */
-    for ( i = 0; i < hintmask->byteCount; i++ )
-    {
-      hintmask->mask[i] = (FT_Byte)cf2_buf_readByte( charstring );
-      FT_TRACE4(( " 0x%02X", hintmask->mask[i] ));
-    }
-
-    FT_TRACE4(( ")\n" ));
-
-    /* assert any unused bits in last byte are zero unless there's a prior */
-    /* error                                                               */
-    /* bitCount -> mask, 0 -> 0, 1 -> 7f, 2 -> 3f, ... 6 -> 3, 7 -> 1      */
-#ifndef CF2_NDEBUG
-    FT_ASSERT( ( hintmask->mask[hintmask->byteCount - 1] & mask ) == 0 ||
-               *hintmask->error                                        );
-#endif
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_hintmask_setAll( CF2_HintMask  hintmask,
-                       size_t        bitCount )
-  {
-    size_t    i;
-    CF2_UInt  mask = ( 1 << ( -(CF2_Int)bitCount & 7 ) ) - 1;
-
-
-    /* initialize counts and isValid */
-    if ( cf2_hintmask_setCounts( hintmask, bitCount ) == 0 )
-      return;
-
-    FT_ASSERT( hintmask->byteCount > 0 );
-    FT_ASSERT( hintmask->byteCount <=
-                 sizeof ( hintmask->mask ) / sizeof ( hintmask->mask[0] ) );
-
-    /* set mask to all ones */
-    for ( i = 0; i < hintmask->byteCount; i++ )
-      hintmask->mask[i] = 0xFF;
-
-    /* clear unused bits                                              */
-    /* bitCount -> mask, 0 -> 0, 1 -> 7f, 2 -> 3f, ... 6 -> 3, 7 -> 1 */
-    hintmask->mask[hintmask->byteCount - 1] &= ~mask;
-  }
-
-
-  /* Type2 charstring opcodes */
-  enum
-  {
-    cf2_cmdRESERVED_0,   /* 0 */
-    cf2_cmdHSTEM,        /* 1 */
-    cf2_cmdRESERVED_2,   /* 2 */
-    cf2_cmdVSTEM,        /* 3 */
-    cf2_cmdVMOVETO,      /* 4 */
-    cf2_cmdRLINETO,      /* 5 */
-    cf2_cmdHLINETO,      /* 6 */
-    cf2_cmdVLINETO,      /* 7 */
-    cf2_cmdRRCURVETO,    /* 8 */
-    cf2_cmdRESERVED_9,   /* 9 */
-    cf2_cmdCALLSUBR,     /* 10 */
-    cf2_cmdRETURN,       /* 11 */
-    cf2_cmdESC,          /* 12 */
-    cf2_cmdRESERVED_13,  /* 13 */
-    cf2_cmdENDCHAR,      /* 14 */
-    cf2_cmdVSINDEX,      /* 15 */
-    cf2_cmdBLEND,        /* 16 */
-    cf2_cmdRESERVED_17,  /* 17 */
-    cf2_cmdHSTEMHM,      /* 18 */
-    cf2_cmdHINTMASK,     /* 19 */
-    cf2_cmdCNTRMASK,     /* 20 */
-    cf2_cmdRMOVETO,      /* 21 */
-    cf2_cmdHMOVETO,      /* 22 */
-    cf2_cmdVSTEMHM,      /* 23 */
-    cf2_cmdRCURVELINE,   /* 24 */
-    cf2_cmdRLINECURVE,   /* 25 */
-    cf2_cmdVVCURVETO,    /* 26 */
-    cf2_cmdHHCURVETO,    /* 27 */
-    cf2_cmdEXTENDEDNMBR, /* 28 */
-    cf2_cmdCALLGSUBR,    /* 29 */
-    cf2_cmdVHCURVETO,    /* 30 */
-    cf2_cmdHVCURVETO     /* 31 */
-  };
-
-  enum
-  {
-    cf2_escDOTSECTION,   /* 0 */
-    cf2_escRESERVED_1,   /* 1 */
-    cf2_escRESERVED_2,   /* 2 */
-    cf2_escAND,          /* 3 */
-    cf2_escOR,           /* 4 */
-    cf2_escNOT,          /* 5 */
-    cf2_escRESERVED_6,   /* 6 */
-    cf2_escRESERVED_7,   /* 7 */
-    cf2_escRESERVED_8,   /* 8 */
-    cf2_escABS,          /* 9 */
-    cf2_escADD,          /* 10     like otherADD */
-    cf2_escSUB,          /* 11     like otherSUB */
-    cf2_escDIV,          /* 12 */
-    cf2_escRESERVED_13,  /* 13 */
-    cf2_escNEG,          /* 14 */
-    cf2_escEQ,           /* 15 */
-    cf2_escRESERVED_16,  /* 16 */
-    cf2_escRESERVED_17,  /* 17 */
-    cf2_escDROP,         /* 18 */
-    cf2_escRESERVED_19,  /* 19 */
-    cf2_escPUT,          /* 20     like otherPUT    */
-    cf2_escGET,          /* 21     like otherGET    */
-    cf2_escIFELSE,       /* 22     like otherIFELSE */
-    cf2_escRANDOM,       /* 23     like otherRANDOM */
-    cf2_escMUL,          /* 24     like otherMUL    */
-    cf2_escRESERVED_25,  /* 25 */
-    cf2_escSQRT,         /* 26 */
-    cf2_escDUP,          /* 27     like otherDUP    */
-    cf2_escEXCH,         /* 28     like otherEXCH   */
-    cf2_escINDEX,        /* 29 */
-    cf2_escROLL,         /* 30 */
-    cf2_escRESERVED_31,  /* 31 */
-    cf2_escRESERVED_32,  /* 32 */
-    cf2_escRESERVED_33,  /* 33 */
-    cf2_escHFLEX,        /* 34 */
-    cf2_escFLEX,         /* 35 */
-    cf2_escHFLEX1,       /* 36 */
-    cf2_escFLEX1,        /* 37 */
-    cf2_escRESERVED_38   /* 38     & all higher     */
-  };
-
-
-  /* `stemHintArray' does not change once we start drawing the outline. */
-  static void
-  cf2_doStems( const CF2_Font  font,
-               CF2_Stack       opStack,
-               CF2_ArrStack    stemHintArray,
-               CF2_Fixed*      width,
-               FT_Bool*        haveWidth,
-               CF2_Fixed       hintOffset )
-  {
-    CF2_UInt  i;
-    CF2_UInt  count       = cf2_stack_count( opStack );
-    FT_Bool   hasWidthArg = (FT_Bool)( count & 1 );
-
-    /* variable accumulates delta values from operand stack */
-    CF2_Fixed  position = hintOffset;
-
-
-    if ( hasWidthArg && !*haveWidth )
-      *width = cf2_stack_getReal( opStack, 0 ) +
-                 cf2_getNominalWidthX( font->decoder );
-
-    if ( font->decoder->width_only )
-      goto exit;
-
-    for ( i = hasWidthArg ? 1 : 0; i < count; i += 2 )
-    {
-      /* construct a CF2_StemHint and push it onto the list */
-      CF2_StemHintRec  stemhint;
-
-
-      stemhint.min =
-      position     = ADD_INT32( position,
-                                cf2_stack_getReal( opStack, i ) );
-      stemhint.max =
-      position     = ADD_INT32( position,
-                                cf2_stack_getReal( opStack, i + 1 ) );
-
-      stemhint.used  = FALSE;
-      stemhint.maxDS =
-      stemhint.minDS = 0;
-
-      cf2_arrstack_push( stemHintArray, &stemhint ); /* defer error check */
-    }
-
-    cf2_stack_clear( opStack );
-
-  exit:
-    /* cf2_doStems must define a width (may be default) */
-    *haveWidth = TRUE;
-  }
-
-
-  static void
-  cf2_doFlex( CF2_Stack       opStack,
-              CF2_Fixed*      curX,
-              CF2_Fixed*      curY,
-              CF2_GlyphPath   glyphPath,
-              const FT_Bool*  readFromStack,
-              FT_Bool         doConditionalLastRead )
-  {
-    CF2_Fixed  vals[14];
-    CF2_UInt   idx;
-    FT_Bool    isHFlex;
-    CF2_Int    top, i, j;
-
-
-    vals[0] = *curX;
-    vals[1] = *curY;
-    idx     = 0;
-    isHFlex = FT_BOOL( readFromStack[9] == FALSE );
-    top     = isHFlex ? 9 : 10;
-
-    for ( i = 0; i < top; i++ )
-    {
-      vals[i + 2] = vals[i];
-      if ( readFromStack[i] )
-        vals[i + 2] = ADD_INT32( vals[i + 2], cf2_stack_getReal( opStack,
-                                                                 idx++ ) );
-    }
-
-    if ( isHFlex )
-      vals[9 + 2] = *curY;
-
-    if ( doConditionalLastRead )
-    {
-      FT_Bool    lastIsX = (FT_Bool)(
-                             cf2_fixedAbs( SUB_INT32( vals[10], *curX ) ) >
-                             cf2_fixedAbs( SUB_INT32( vals[11], *curY ) ) );
-      CF2_Fixed  lastVal = cf2_stack_getReal( opStack, idx );
-
-
-      if ( lastIsX )
-      {
-        vals[12] = ADD_INT32( vals[10], lastVal );
-        vals[13] = *curY;
-      }
-      else
-      {
-        vals[12] = *curX;
-        vals[13] = ADD_INT32( vals[11], lastVal );
-      }
-    }
-    else
-    {
-      if ( readFromStack[10] )
-        vals[12] = ADD_INT32( vals[10],
-                              cf2_stack_getReal( opStack, idx++ ) );
-      else
-        vals[12] = *curX;
-
-      if ( readFromStack[11] )
-        vals[13] = ADD_INT32( vals[11],
-                              cf2_stack_getReal( opStack, idx ) );
-      else
-        vals[13] = *curY;
-    }
-
-    for ( j = 0; j < 2; j++ )
-      cf2_glyphpath_curveTo( glyphPath, vals[j * 6 + 2],
-                                        vals[j * 6 + 3],
-                                        vals[j * 6 + 4],
-                                        vals[j * 6 + 5],
-                                        vals[j * 6 + 6],
-                                        vals[j * 6 + 7] );
-
-    cf2_stack_clear( opStack );
-
-    *curX = vals[12];
-    *curY = vals[13];
-  }
-
-
-  /* Blend numOperands on the stack,                */
-  /* store results into the first numBlends values, */
-  /* then pop remaining arguments.                  */
-  static void
-  cf2_doBlend( const CFF_Blend  blend,
-               CF2_Stack        opStack,
-               CF2_UInt         numBlends )
-  {
-    CF2_UInt  delta;
-    CF2_UInt  base;
-    CF2_UInt  i, j;
-    CF2_UInt  numOperands = (CF2_UInt)( numBlends * blend->lenBV );
-
-
-    base  = cf2_stack_count( opStack ) - numOperands;
-    delta = base + numBlends;
-
-    for ( i = 0; i < numBlends; i++ )
-    {
-      const CF2_Fixed*  weight = &blend->BV[1];
-
-      /* start with first term */
-      CF2_Fixed  sum = cf2_stack_getReal( opStack, i + base );
-
-
-      for ( j = 1; j < blend->lenBV; j++ )
-        sum = ADD_INT32( sum,
-                         FT_MulFix( *weight++,
-                                    cf2_stack_getReal( opStack,
-                                                       delta++ ) ) );
-
-      /* store blended result  */
-      cf2_stack_setReal( opStack, i + base, sum );
-    }
-
-    /* leave only `numBlends' results on stack */
-    cf2_stack_pop( opStack, numOperands - numBlends );
-  }
-
-
-  /*
-   * `error' is a shared error code used by many objects in this
-   * routine.  Before the code continues from an error, it must check and
-   * record the error in `*error'.  The idea is that this shared
-   * error code will record the first error encountered.  If testing
-   * for an error anyway, the cost of `goto exit' is small, so we do it,
-   * even if continuing would be safe.  In this case, `lastError' is
-   * set, so the testing and storing can be done in one place, at `exit'.
-   *
-   * Continuing after an error is intended for objects which do their own
-   * testing of `*error', e.g., array stack functions.  This allows us to
-   * avoid an extra test after the call.
-   *
-   * Unimplemented opcodes are ignored.
-   *
-   */
-  FT_LOCAL_DEF( void )
-  cf2_interpT2CharString( CF2_Font              font,
-                          CF2_Buffer            buf,
-                          CF2_OutlineCallbacks  callbacks,
-                          const FT_Vector*      translation,
-                          FT_Bool               doingSeac,
-                          CF2_Fixed             curX,
-                          CF2_Fixed             curY,
-                          CF2_Fixed*            width )
-  {
-    /* lastError is used for errors that are immediately tested */
-    FT_Error  lastError = FT_Err_Ok;
-
-    /* pointer to parsed font object */
-    CFF_Decoder*  decoder = font->decoder;
-
-    FT_Error*  error  = &font->error;
-    FT_Memory  memory = font->memory;
-
-    CF2_Fixed  scaleY        = font->innerTransform.d;
-    CF2_Fixed  nominalWidthX = cf2_getNominalWidthX( decoder );
-
-    /* save this for hinting seac accents */
-    CF2_Fixed  hintOriginY = curY;
-
-    CF2_Stack  opStack = NULL;
-    FT_UInt    stackSize;
-    FT_Byte    op1;                       /* first opcode byte */
-
-    CF2_F16Dot16  storage[CF2_STORAGE_SIZE];    /* for `put' and `get' */
-
-    /* instruction limit; 20,000,000 matches Avalon */
-    FT_UInt32  instructionLimit = 20000000UL;
-
-    CF2_ArrStackRec  subrStack;
-
-    FT_Bool     haveWidth;
-    CF2_Buffer  charstring = NULL;
-
-    CF2_Int  charstringIndex = -1;       /* initialize to empty */
-
-    /* TODO: placeholders for hint structures */
-
-    /* objects used for hinting */
-    CF2_ArrStackRec  hStemHintArray;
-    CF2_ArrStackRec  vStemHintArray;
-
-    CF2_HintMaskRec   hintMask;
-    CF2_GlyphPathRec  glyphPath;
-
-
-    FT_ZERO( &storage );
-
-    /* initialize the remaining objects */
-    cf2_arrstack_init( &subrStack,
-                       memory,
-                       error,
-                       sizeof ( CF2_BufferRec ) );
-    cf2_arrstack_init( &hStemHintArray,
-                       memory,
-                       error,
-                       sizeof ( CF2_StemHintRec ) );
-    cf2_arrstack_init( &vStemHintArray,
-                       memory,
-                       error,
-                       sizeof ( CF2_StemHintRec ) );
-
-    /* initialize CF2_StemHint arrays */
-    cf2_hintmask_init( &hintMask, error );
-
-    /* initialize path map to manage drawing operations */
-
-    /* Note: last 4 params are used to handle `MoveToPermissive', which */
-    /*       may need to call `hintMap.Build'                           */
-    /* TODO: MoveToPermissive is gone; are these still needed?          */
-    cf2_glyphpath_init( &glyphPath,
-                        font,
-                        callbacks,
-                        scaleY,
-                        /* hShift, */
-                        &hStemHintArray,
-                        &vStemHintArray,
-                        &hintMask,
-                        hintOriginY,
-                        &font->blues,
-                        translation );
-
-    /*
-     * Initialize state for width parsing.  From the CFF Spec:
-     *
-     *   The first stack-clearing operator, which must be one of hstem,
-     *   hstemhm, vstem, vstemhm, cntrmask, hintmask, hmoveto, vmoveto,
-     *   rmoveto, or endchar, takes an additional argument - the width (as
-     *   described earlier), which may be expressed as zero or one numeric
-     *   argument.
-     *
-     * What we implement here uses the first validly specified width, but
-     * does not detect errors for specifying more than one width.
-     *
-     * If one of the above operators occurs without explicitly specifying
-     * a width, we assume the default width.
-     *
-     * CFF2 charstrings always return the default width (0).
-     *
-     */
-    haveWidth = font->isCFF2 ? TRUE : FALSE;
-    *width    = cf2_getDefaultWidthX( decoder );
-
-    /*
-     * Note: At this point, all pointers to resources must be NULL
-     *       and all local objects must be initialized.
-     *       There must be no branches to `exit:' above this point.
-     *
-     */
-
-    /* allocate an operand stack */
-    stackSize = font->isCFF2 ? cf2_getMaxstack( decoder )
-                             : CF2_OPERAND_STACK_SIZE;
-    opStack   = cf2_stack_init( memory, error, stackSize );
-
-    if ( !opStack )
-    {
-      lastError = FT_THROW( Out_Of_Memory );
-      goto exit;
-    }
-
-    /* initialize subroutine stack by placing top level charstring as */
-    /* first element (max depth plus one for the charstring)          */
-    /* Note: Caller owns and must finalize the first charstring.      */
-    /*       Our copy of it does not change that requirement.         */
-    cf2_arrstack_setCount( &subrStack, CF2_MAX_SUBR + 1 );
-
-    charstring  = (CF2_Buffer)cf2_arrstack_getBuffer( &subrStack );
-    *charstring = *buf;    /* structure copy */
-
-    charstringIndex = 0;       /* entry is valid now */
-
-    /* catch errors so far */
-    if ( *error )
-      goto exit;
-
-    /* main interpreter loop */
-    while ( 1 )
-    {
-      if ( cf2_buf_isEnd( charstring ) )
-      {
-        /* If we've reached the end of the charstring, simulate a */
-        /* cf2_cmdRETURN or cf2_cmdENDCHAR.                       */
-        /* We do this for both CFF and CFF2.                      */
-        if ( charstringIndex )
-          op1 = cf2_cmdRETURN;  /* end of buffer for subroutine */
-        else
-          op1 = cf2_cmdENDCHAR; /* end of buffer for top level charstring */
-      }
-      else
-      {
-        op1 = (FT_Byte)cf2_buf_readByte( charstring );
-
-        /* Explicit RETURN and ENDCHAR in CFF2 should be ignored. */
-        /* Note: Trace message will report 0 instead of 11 or 14. */
-        if ( ( op1 == cf2_cmdRETURN || op1 == cf2_cmdENDCHAR ) &&
-             font->isCFF2                                      )
-          op1 = cf2_cmdRESERVED_0;
-      }
-
-      /* check for errors once per loop */
-      if ( *error )
-        goto exit;
-
-      instructionLimit--;
-      if ( instructionLimit == 0 )
-      {
-        lastError = FT_THROW( Invalid_Glyph_Format );
-        goto exit;
-      }
-
-      switch( op1 )
-      {
-      case cf2_cmdRESERVED_0:
-      case cf2_cmdRESERVED_2:
-      case cf2_cmdRESERVED_9:
-      case cf2_cmdRESERVED_13:
-      case cf2_cmdRESERVED_17:
-        /* we may get here if we have a prior error */
-        FT_TRACE4(( " unknown op (%d)\n", op1 ));
-        break;
-
-      case cf2_cmdVSINDEX:
-        FT_TRACE4(( " vsindex\n" ));
-
-        if ( !font->isCFF2 )
-          break;    /* clear stack & ignore */
-
-        if ( font->blend.usedBV )
-        {
-          /* vsindex not allowed after blend */
-          lastError = FT_THROW( Invalid_Glyph_Format );
-          goto exit;
-        }
-
-        {
-          FT_Int  temp = cf2_stack_popInt( opStack );
-
-
-          if ( temp >= 0 )
-            font->vsindex = (FT_UInt)temp;
-        }
-        break;
-
-      case cf2_cmdBLEND:
-        {
-          FT_UInt  numBlends;
-
-
-          FT_TRACE4(( " blend\n" ));
-
-          if ( !font->isCFF2 )
-            break;    /* clear stack & ignore */
-
-          /* do we have a `blend' op in a non-variant font? */
-          if ( !font->blend.font )
-          {
-            lastError = FT_THROW( Invalid_Glyph_Format );
-            goto exit;
-          }
-
-          /* check cached blend vector */
-          if ( cff_blend_check_vector( &font->blend,
-                                       font->vsindex,
-                                       font->lenNDV,
-                                       font->NDV ) )
-          {
-            lastError = cff_blend_build_vector( &font->blend,
-                                                font->vsindex,
-                                                font->lenNDV,
-                                                font->NDV );
-            if ( lastError )
-              goto exit;
-          }
-
-          /* do the blend */
-          numBlends = (FT_UInt)cf2_stack_popInt( opStack );
-          if ( numBlends > stackSize )
-          {
-            lastError = FT_THROW( Invalid_Glyph_Format );
-            goto exit;
-          }
-
-          cf2_doBlend( &font->blend, opStack, numBlends );
-
-          font->blend.usedBV = TRUE;
-        }
-        continue;     /* do not clear the stack */
-
-      case cf2_cmdHSTEMHM:
-      case cf2_cmdHSTEM:
-        FT_TRACE4(( op1 == cf2_cmdHSTEMHM ? " hstemhm\n" : " hstem\n" ));
-
-        /* never add hints after the mask is computed */
-        if ( cf2_hintmask_isValid( &hintMask ) )
-        {
-          FT_TRACE4(( "cf2_interpT2CharString:"
-                      " invalid horizontal hint mask\n" ));
-          break;
-        }
-
-        cf2_doStems( font,
-                     opStack,
-                     &hStemHintArray,
-                     width,
-                     &haveWidth,
-                     0 );
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        break;
-
-      case cf2_cmdVSTEMHM:
-      case cf2_cmdVSTEM:
-        FT_TRACE4(( op1 == cf2_cmdVSTEMHM ? " vstemhm\n" : " vstem\n" ));
-
-        /* never add hints after the mask is computed */
-        if ( cf2_hintmask_isValid( &hintMask ) )
-        {
-          FT_TRACE4(( "cf2_interpT2CharString:"
-                      " invalid vertical hint mask\n" ));
-          break;
-        }
-
-        cf2_doStems( font,
-                     opStack,
-                     &vStemHintArray,
-                     width,
-                     &haveWidth,
-                     0 );
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        break;
-
-      case cf2_cmdVMOVETO:
-        FT_TRACE4(( " vmoveto\n" ));
-
-        if ( cf2_stack_count( opStack ) > 1 && !haveWidth )
-          *width = ADD_INT32( cf2_stack_getReal( opStack, 0 ),
-                              nominalWidthX );
-
-        /* width is defined or default after this */
-        haveWidth = TRUE;
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        curY = ADD_INT32( curY, cf2_stack_popFixed( opStack ) );
-
-        cf2_glyphpath_moveTo( &glyphPath, curX, curY );
-
-        break;
-
-      case cf2_cmdRLINETO:
-        {
-          CF2_UInt  idx;
-          CF2_UInt  count = cf2_stack_count( opStack );
-
-
-          FT_TRACE4(( " rlineto\n" ));
-
-          for ( idx = 0; idx < count; idx += 2 )
-          {
-            curX = ADD_INT32( curX, cf2_stack_getReal( opStack,
-                                                       idx + 0 ) );
-            curY = ADD_INT32( curY, cf2_stack_getReal( opStack,
-                                                       idx + 1 ) );
-
-            cf2_glyphpath_lineTo( &glyphPath, curX, curY );
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue; /* no need to clear stack again */
-
-      case cf2_cmdHLINETO:
-      case cf2_cmdVLINETO:
-        {
-          CF2_UInt  idx;
-          CF2_UInt  count = cf2_stack_count( opStack );
-
-          FT_Bool  isX = FT_BOOL( op1 == cf2_cmdHLINETO );
-
-
-          FT_TRACE4(( isX ? " hlineto\n" : " vlineto\n" ));
-
-          for ( idx = 0; idx < count; idx++ )
-          {
-            CF2_Fixed  v = cf2_stack_getReal( opStack, idx );
-
-
-            if ( isX )
-              curX = ADD_INT32( curX, v );
-            else
-              curY = ADD_INT32( curY, v );
-
-            isX = !isX;
-
-            cf2_glyphpath_lineTo( &glyphPath, curX, curY );
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue;
-
-      case cf2_cmdRCURVELINE:
-      case cf2_cmdRRCURVETO:
-        {
-          CF2_UInt  count = cf2_stack_count( opStack );
-          CF2_UInt  idx   = 0;
-
-
-          FT_TRACE4(( op1 == cf2_cmdRCURVELINE ? " rcurveline\n"
-                                               : " rrcurveto\n" ));
-
-          while ( idx + 6 <= count )
-          {
-            CF2_Fixed  x1, y1, x2, y2, x3, y3;
-
-
-            x1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 0 ), curX );
-            y1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 1 ), curY );
-            x2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 2 ), x1 );
-            y2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 3 ), y1 );
-            x3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 4 ), x2 );
-            y3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 5 ), y2 );
-
-            cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
-
-            curX  = x3;
-            curY  = y3;
-            idx  += 6;
-          }
-
-          if ( op1 == cf2_cmdRCURVELINE )
-          {
-            curX = ADD_INT32( curX, cf2_stack_getReal( opStack,
-                                                       idx + 0 ) );
-            curY = ADD_INT32( curY, cf2_stack_getReal( opStack,
-                                                       idx + 1 ) );
-
-            cf2_glyphpath_lineTo( &glyphPath, curX, curY );
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue; /* no need to clear stack again */
-
-      case cf2_cmdCALLGSUBR:
-      case cf2_cmdCALLSUBR:
-        {
-          CF2_Int  subrNum;
-
-
-          FT_TRACE4(( op1 == cf2_cmdCALLGSUBR ? " callgsubr"
-                                              : " callsubr" ));
-
-          if ( charstringIndex > CF2_MAX_SUBR )
-          {
-            /* max subr plus one for charstring */
-            lastError = FT_THROW( Invalid_Glyph_Format );
-            goto exit;                      /* overflow of stack */
-          }
-
-          /* push our current CFF charstring region on subrStack */
-          charstring = (CF2_Buffer)
-                         cf2_arrstack_getPointer(
-                           &subrStack,
-                           (size_t)charstringIndex + 1 );
-
-          /* set up the new CFF region and pointer */
-          subrNum = cf2_stack_popInt( opStack );
-
-          switch ( op1 )
-          {
-          case cf2_cmdCALLGSUBR:
-            FT_TRACE4(( " (idx %d, entering level %d)\n",
-                        subrNum + decoder->globals_bias,
-                        charstringIndex + 1 ));
-
-            if ( cf2_initGlobalRegionBuffer( decoder,
-                                             subrNum,
-                                             charstring ) )
-            {
-              lastError = FT_THROW( Invalid_Glyph_Format );
-              goto exit;  /* subroutine lookup or stream error */
-            }
-            break;
-
-          default:
-            /* cf2_cmdCALLSUBR */
-            FT_TRACE4(( " (idx %d, entering level %d)\n",
-                        subrNum + decoder->locals_bias,
-                        charstringIndex + 1 ));
-
-            if ( cf2_initLocalRegionBuffer( decoder,
-                                            subrNum,
-                                            charstring ) )
-            {
-              lastError = FT_THROW( Invalid_Glyph_Format );
-              goto exit;  /* subroutine lookup or stream error */
-            }
-          }
-
-          charstringIndex += 1;       /* entry is valid now */
-        }
-        continue; /* do not clear the stack */
-
-      case cf2_cmdRETURN:
-        FT_TRACE4(( " return (leaving level %d)\n", charstringIndex ));
-
-        if ( charstringIndex < 1 )
-        {
-          /* Note: cannot return from top charstring */
-          lastError = FT_THROW( Invalid_Glyph_Format );
-          goto exit;                      /* underflow of stack */
-        }
-
-        /* restore position in previous charstring */
-        charstring = (CF2_Buffer)
-                       cf2_arrstack_getPointer(
-                         &subrStack,
-                         (CF2_UInt)--charstringIndex );
-        continue;     /* do not clear the stack */
-
-      case cf2_cmdESC:
-        {
-          FT_Byte  op2 = (FT_Byte)cf2_buf_readByte( charstring );
-
-
-          /* first switch for 2-byte operators handles CFF2      */
-          /* and opcodes that are reserved for both CFF and CFF2 */
-          switch ( op2 )
-          {
-          case cf2_escHFLEX:
-            {
-              static const FT_Bool  readFromStack[12] =
-              {
-                TRUE /* dx1 */, FALSE /* dy1 */,
-                TRUE /* dx2 */, TRUE  /* dy2 */,
-                TRUE /* dx3 */, FALSE /* dy3 */,
-                TRUE /* dx4 */, FALSE /* dy4 */,
-                TRUE /* dx5 */, FALSE /* dy5 */,
-                TRUE /* dx6 */, FALSE /* dy6 */
-              };
-
-
-              FT_TRACE4(( " hflex\n" ));
-
-              cf2_doFlex( opStack,
-                          &curX,
-                          &curY,
-                          &glyphPath,
-                          readFromStack,
-                          FALSE /* doConditionalLastRead */ );
-            }
-            continue;
-
-          case cf2_escFLEX:
-            {
-              static const FT_Bool  readFromStack[12] =
-              {
-                TRUE /* dx1 */, TRUE /* dy1 */,
-                TRUE /* dx2 */, TRUE /* dy2 */,
-                TRUE /* dx3 */, TRUE /* dy3 */,
-                TRUE /* dx4 */, TRUE /* dy4 */,
-                TRUE /* dx5 */, TRUE /* dy5 */,
-                TRUE /* dx6 */, TRUE /* dy6 */
-              };
-
-
-              FT_TRACE4(( " flex\n" ));
-
-              cf2_doFlex( opStack,
-                          &curX,
-                          &curY,
-                          &glyphPath,
-                          readFromStack,
-                          FALSE /* doConditionalLastRead */ );
-            }
-            break;      /* TODO: why is this not a continue? */
-
-          case cf2_escHFLEX1:
-            {
-              static const FT_Bool  readFromStack[12] =
-              {
-                TRUE /* dx1 */, TRUE  /* dy1 */,
-                TRUE /* dx2 */, TRUE  /* dy2 */,
-                TRUE /* dx3 */, FALSE /* dy3 */,
-                TRUE /* dx4 */, FALSE /* dy4 */,
-                TRUE /* dx5 */, TRUE  /* dy5 */,
-                TRUE /* dx6 */, FALSE /* dy6 */
-              };
-
-
-              FT_TRACE4(( " hflex1\n" ));
-
-              cf2_doFlex( opStack,
-                          &curX,
-                          &curY,
-                          &glyphPath,
-                          readFromStack,
-                          FALSE /* doConditionalLastRead */ );
-            }
-            continue;
-
-          case cf2_escFLEX1:
-            {
-              static const FT_Bool  readFromStack[12] =
-              {
-                TRUE  /* dx1 */, TRUE  /* dy1 */,
-                TRUE  /* dx2 */, TRUE  /* dy2 */,
-                TRUE  /* dx3 */, TRUE  /* dy3 */,
-                TRUE  /* dx4 */, TRUE  /* dy4 */,
-                TRUE  /* dx5 */, TRUE  /* dy5 */,
-                FALSE /* dx6 */, FALSE /* dy6 */
-              };
-
-
-              FT_TRACE4(( " flex1\n" ));
-
-              cf2_doFlex( opStack,
-                          &curX,
-                          &curY,
-                          &glyphPath,
-                          readFromStack,
-                          TRUE /* doConditionalLastRead */ );
-            }
-            continue;
-
-          /* these opcodes are reserved in both CFF & CFF2 */
-          case cf2_escRESERVED_1:
-          case cf2_escRESERVED_2:
-          case cf2_escRESERVED_6:
-          case cf2_escRESERVED_7:
-          case cf2_escRESERVED_8:
-          case cf2_escRESERVED_13:
-          case cf2_escRESERVED_16:
-          case cf2_escRESERVED_17:
-          case cf2_escRESERVED_19:
-          case cf2_escRESERVED_25:
-          case cf2_escRESERVED_31:
-          case cf2_escRESERVED_32:
-          case cf2_escRESERVED_33:
-            FT_TRACE4(( " unknown op (12, %d)\n", op2 ));
-            break;
-
-          default:
-            {
-              if ( font->isCFF2 || op2 >= cf2_escRESERVED_38 )
-                FT_TRACE4(( " unknown op (12, %d)\n", op2 ));
-              else
-              {
-                /* second switch for 2-byte operators handles just CFF */
-                switch ( op2 )
-                {
-
-                case cf2_escDOTSECTION:
-                  /* something about `flip type of locking' -- ignore it */
-                  FT_TRACE4(( " dotsection\n" ));
-
-                  break;
-
-                case cf2_escAND:
-                  {
-                    CF2_F16Dot16  arg1;
-                    CF2_F16Dot16  arg2;
-
-
-                    FT_TRACE4(( " and\n" ));
-
-                    arg2 = cf2_stack_popFixed( opStack );
-                    arg1 = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushInt( opStack, arg1 && arg2 );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escOR:
-                  {
-                    CF2_F16Dot16  arg1;
-                    CF2_F16Dot16  arg2;
-
-
-                    FT_TRACE4(( " or\n" ));
-
-                    arg2 = cf2_stack_popFixed( opStack );
-                    arg1 = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushInt( opStack, arg1 || arg2 );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escNOT:
-                  {
-                    CF2_F16Dot16  arg;
-
-
-                    FT_TRACE4(( " not\n" ));
-
-                    arg = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushInt( opStack, !arg );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escABS:
-                  {
-                    CF2_F16Dot16  arg;
-
-
-                    FT_TRACE4(( " abs\n" ));
-
-                    arg = cf2_stack_popFixed( opStack );
-
-                    if ( arg < -CF2_FIXED_MAX )
-                      cf2_stack_pushFixed( opStack, CF2_FIXED_MAX );
-                    else
-                      cf2_stack_pushFixed( opStack, FT_ABS( arg ) );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escADD:
-                  {
-                    CF2_F16Dot16  summand1;
-                    CF2_F16Dot16  summand2;
-
-
-                    FT_TRACE4(( " add\n" ));
-
-                    summand2 = cf2_stack_popFixed( opStack );
-                    summand1 = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack,
-                                         ADD_INT32( summand1,
-                                                    summand2 ) );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escSUB:
-                  {
-                    CF2_F16Dot16  minuend;
-                    CF2_F16Dot16  subtrahend;
-
-
-                    FT_TRACE4(( " sub\n" ));
-
-                    subtrahend = cf2_stack_popFixed( opStack );
-                    minuend    = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack,
-                                         SUB_INT32( minuend, subtrahend ) );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escDIV:
-                  {
-                    CF2_F16Dot16  dividend;
-                    CF2_F16Dot16  divisor;
-
-
-                    FT_TRACE4(( " div\n" ));
-
-                    divisor  = cf2_stack_popFixed( opStack );
-                    dividend = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack,
-                                         FT_DivFix( dividend, divisor ) );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escNEG:
-                  {
-                    CF2_F16Dot16  arg;
-
-
-                    FT_TRACE4(( " neg\n" ));
-
-                    arg = cf2_stack_popFixed( opStack );
-
-                    if ( arg < -CF2_FIXED_MAX )
-                      cf2_stack_pushFixed( opStack, CF2_FIXED_MAX );
-                    else
-                      cf2_stack_pushFixed( opStack, -arg );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escEQ:
-                  {
-                    CF2_F16Dot16  arg1;
-                    CF2_F16Dot16  arg2;
-
-
-                    FT_TRACE4(( " eq\n" ));
-
-                    arg2 = cf2_stack_popFixed( opStack );
-                    arg1 = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushInt( opStack, arg1 == arg2 );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escDROP:
-                  FT_TRACE4(( " drop\n" ));
-
-                  (void)cf2_stack_popFixed( opStack );
-                  continue; /* do not clear the stack */
-
-                case cf2_escPUT:
-                  {
-                    CF2_F16Dot16  val;
-                    CF2_Int       idx;
-
-
-                    FT_TRACE4(( " put\n" ));
-
-                    idx = cf2_stack_popInt( opStack );
-                    val = cf2_stack_popFixed( opStack );
-
-                    if ( idx >= 0 && idx < CF2_STORAGE_SIZE )
-                      storage[idx] = val;
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escGET:
-                  {
-                    CF2_Int  idx;
-
-
-                    FT_TRACE4(( " get\n" ));
-
-                    idx = cf2_stack_popInt( opStack );
-
-                    if ( idx >= 0 && idx < CF2_STORAGE_SIZE )
-                      cf2_stack_pushFixed( opStack, storage[idx] );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escIFELSE:
-                  {
-                    CF2_F16Dot16  arg1;
-                    CF2_F16Dot16  arg2;
-                    CF2_F16Dot16  cond1;
-                    CF2_F16Dot16  cond2;
-
-
-                    FT_TRACE4(( " ifelse\n" ));
-
-                    cond2 = cf2_stack_popFixed( opStack );
-                    cond1 = cf2_stack_popFixed( opStack );
-                    arg2  = cf2_stack_popFixed( opStack );
-                    arg1  = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack,
-                                         cond1 <= cond2 ? arg1 : arg2 );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escRANDOM: /* in spec */
-                  {
-                    CF2_F16Dot16  r;
-
-
-                    FT_TRACE4(( " random\n" ));
-
-                    /* only use the lower 16 bits of `random'  */
-                    /* to generate a number in the range (0;1] */
-                    r = (CF2_F16Dot16)
-                          ( ( decoder->current_subfont->random & 0xFFFF ) + 1 );
-
-                    decoder->current_subfont->random =
-                      cff_random( decoder->current_subfont->random );
-
-                    cf2_stack_pushFixed( opStack, r );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escMUL:
-                  {
-                    CF2_F16Dot16  factor1;
-                    CF2_F16Dot16  factor2;
-
-
-                    FT_TRACE4(( " mul\n" ));
-
-                    factor2 = cf2_stack_popFixed( opStack );
-                    factor1 = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack,
-                                         FT_MulFix( factor1, factor2 ) );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escSQRT:
-                  {
-                    CF2_F16Dot16  arg;
-
-
-                    FT_TRACE4(( " sqrt\n" ));
-
-                    arg = cf2_stack_popFixed( opStack );
-                    if ( arg > 0 )
-                    {
-                      /* use a start value that doesn't make */
-                      /* the algorithm's addition overflow   */
-                      FT_Fixed  root = arg < 10 ? arg : arg >> 1;
-                      FT_Fixed  new_root;
-
-
-                      /* Babylonian method */
-                      for (;;)
-                      {
-                        new_root = ( root + FT_DivFix( arg, root ) + 1 ) >> 1;
-                        if ( new_root == root )
-                          break;
-                        root = new_root;
-                      }
-                      arg = new_root;
-                    }
-                    else
-                      arg = 0;
-
-                    cf2_stack_pushFixed( opStack, arg );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escDUP:
-                  {
-                    CF2_F16Dot16  arg;
-
-
-                    FT_TRACE4(( " dup\n" ));
-
-                    arg = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack, arg );
-                    cf2_stack_pushFixed( opStack, arg );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escEXCH:
-                  {
-                    CF2_F16Dot16  arg1;
-                    CF2_F16Dot16  arg2;
-
-
-                    FT_TRACE4(( " exch\n" ));
-
-                    arg2 = cf2_stack_popFixed( opStack );
-                    arg1 = cf2_stack_popFixed( opStack );
-
-                    cf2_stack_pushFixed( opStack, arg2 );
-                    cf2_stack_pushFixed( opStack, arg1 );
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escINDEX:
-                  {
-                    CF2_Int   idx;
-                    CF2_UInt  size;
-
-
-                    FT_TRACE4(( " index\n" ));
-
-                    idx  = cf2_stack_popInt( opStack );
-                    size = cf2_stack_count( opStack );
-
-                    if ( size > 0 )
-                    {
-                      /* for `cf2_stack_getReal',   */
-                      /* index 0 is bottom of stack */
-                      CF2_UInt  gr_idx;
-
-
-                      if ( idx < 0 )
-                        gr_idx = size - 1;
-                      else if ( (CF2_UInt)idx >= size )
-                        gr_idx = 0;
-                      else
-                        gr_idx = size - 1 - (CF2_UInt)idx;
-
-                      cf2_stack_pushFixed( opStack,
-                                           cf2_stack_getReal( opStack,
-                                                              gr_idx ) );
-                    }
-                  }
-                  continue; /* do not clear the stack */
-
-                case cf2_escROLL:
-                  {
-                    CF2_Int  idx;
-                    CF2_Int  count;
-
-
-                    FT_TRACE4(( " roll\n" ));
-
-                    idx   = cf2_stack_popInt( opStack );
-                    count = cf2_stack_popInt( opStack );
-
-                    cf2_stack_roll( opStack, count, idx );
-                  }
-                  continue; /* do not clear the stack */
-
-                } /* end of 2nd switch checking op2 */
-              }
-            }
-          } /* end of 1st switch checking op2 */
-        } /* case cf2_cmdESC */
-
-        break;
-
-      case cf2_cmdENDCHAR:
-        FT_TRACE4(( " endchar\n" ));
-
-        if ( cf2_stack_count( opStack ) == 1 ||
-             cf2_stack_count( opStack ) == 5 )
-        {
-          if ( !haveWidth )
-            *width = ADD_INT32( cf2_stack_getReal( opStack, 0 ),
-                                nominalWidthX );
-        }
-
-        /* width is defined or default after this */
-        haveWidth = TRUE;
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        /* close path if still open */
-        cf2_glyphpath_closeOpenPath( &glyphPath );
-
-        /* disable seac for CFF2 (charstring ending with args on stack) */
-        if ( !font->isCFF2 && cf2_stack_count( opStack ) > 1 )
-        {
-          /* must be either 4 or 5 --                       */
-          /* this is a (deprecated) implied `seac' operator */
-
-          CF2_Int        achar;
-          CF2_Int        bchar;
-          CF2_BufferRec  component;
-          CF2_Fixed      dummyWidth;   /* ignore component width */
-          FT_Error       error2;
-
-
-          if ( doingSeac )
-          {
-            lastError = FT_THROW( Invalid_Glyph_Format );
-            goto exit;      /* nested seac */
-          }
-
-          achar = cf2_stack_popInt( opStack );
-          bchar = cf2_stack_popInt( opStack );
-
-          curY = cf2_stack_popFixed( opStack );
-          curX = cf2_stack_popFixed( opStack );
-
-          error2 = cf2_getSeacComponent( decoder, achar, &component );
-          if ( error2 )
-          {
-            lastError = error2;      /* pass FreeType error through */
-            goto exit;
-          }
-          cf2_interpT2CharString( font,
-                                  &component,
-                                  callbacks,
-                                  translation,
-                                  TRUE,
-                                  curX,
-                                  curY,
-                                  &dummyWidth );
-          cf2_freeSeacComponent( decoder, &component );
-
-          error2 = cf2_getSeacComponent( decoder, bchar, &component );
-          if ( error2 )
-          {
-            lastError = error2;      /* pass FreeType error through */
-            goto exit;
-          }
-          cf2_interpT2CharString( font,
-                                  &component,
-                                  callbacks,
-                                  translation,
-                                  TRUE,
-                                  0,
-                                  0,
-                                  &dummyWidth );
-          cf2_freeSeacComponent( decoder, &component );
-        }
-        goto exit;
-
-      case cf2_cmdCNTRMASK:
-      case cf2_cmdHINTMASK:
-        /* the final \n in the tracing message gets added in      */
-        /* `cf2_hintmask_read' (which also traces the mask bytes) */
-        FT_TRACE4(( op1 == cf2_cmdCNTRMASK ? " cntrmask" : " hintmask" ));
-
-        /* never add hints after the mask is computed */
-        if ( cf2_stack_count( opStack ) > 1    &&
-             cf2_hintmask_isValid( &hintMask ) )
-        {
-          FT_TRACE4(( "cf2_interpT2CharString: invalid hint mask\n" ));
-          break;
-        }
-
-        /* if there are arguments on the stack, there this is an */
-        /* implied cf2_cmdVSTEMHM                                */
-        cf2_doStems( font,
-                     opStack,
-                     &vStemHintArray,
-                     width,
-                     &haveWidth,
-                     0 );
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        if ( op1 == cf2_cmdHINTMASK )
-        {
-          /* consume the hint mask bytes which follow the operator */
-          cf2_hintmask_read( &hintMask,
-                             charstring,
-                             cf2_arrstack_size( &hStemHintArray ) +
-                               cf2_arrstack_size( &vStemHintArray ) );
-        }
-        else
-        {
-          /*
-           * Consume the counter mask bytes which follow the operator:
-           * Build a temporary hint map, just to place and lock those
-           * stems participating in the counter mask.  These are most
-           * likely the dominant hstems, and are grouped together in a
-           * few counter groups, not necessarily in correspondence
-           * with the hint groups.  This reduces the chances of
-           * conflicts between hstems that are initially placed in
-           * separate hint groups and then brought together.  The
-           * positions are copied back to `hStemHintArray', so we can
-           * discard `counterMask' and `counterHintMap'.
-           *
-           */
-          CF2_HintMapRec   counterHintMap;
-          CF2_HintMaskRec  counterMask;
-
-
-          cf2_hintmap_init( &counterHintMap,
-                            font,
-                            &glyphPath.initialHintMap,
-                            &glyphPath.hintMoves,
-                            scaleY );
-          cf2_hintmask_init( &counterMask, error );
-
-          cf2_hintmask_read( &counterMask,
-                             charstring,
-                             cf2_arrstack_size( &hStemHintArray ) +
-                               cf2_arrstack_size( &vStemHintArray ) );
-          cf2_hintmap_build( &counterHintMap,
-                             &hStemHintArray,
-                             &vStemHintArray,
-                             &counterMask,
-                             0,
-                             FALSE );
-        }
-        break;
-
-      case cf2_cmdRMOVETO:
-        FT_TRACE4(( " rmoveto\n" ));
-
-        if ( cf2_stack_count( opStack ) > 2 && !haveWidth )
-          *width = ADD_INT32( cf2_stack_getReal( opStack, 0 ),
-                              nominalWidthX );
-
-        /* width is defined or default after this */
-        haveWidth = TRUE;
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        curY = ADD_INT32( curY, cf2_stack_popFixed( opStack ) );
-        curX = ADD_INT32( curX, cf2_stack_popFixed( opStack ) );
-
-        cf2_glyphpath_moveTo( &glyphPath, curX, curY );
-
-        break;
-
-      case cf2_cmdHMOVETO:
-        FT_TRACE4(( " hmoveto\n" ));
-
-        if ( cf2_stack_count( opStack ) > 1 && !haveWidth )
-          *width = ADD_INT32( cf2_stack_getReal( opStack, 0 ),
-                              nominalWidthX );
-
-        /* width is defined or default after this */
-        haveWidth = TRUE;
-
-        if ( font->decoder->width_only )
-          goto exit;
-
-        curX = ADD_INT32( curX, cf2_stack_popFixed( opStack ) );
-
-        cf2_glyphpath_moveTo( &glyphPath, curX, curY );
-
-        break;
-
-      case cf2_cmdRLINECURVE:
-        {
-          CF2_UInt  count = cf2_stack_count( opStack );
-          CF2_UInt  idx   = 0;
-
-
-          FT_TRACE4(( " rlinecurve\n" ));
-
-          while ( idx + 6 < count )
-          {
-            curX = ADD_INT32( curX, cf2_stack_getReal( opStack,
-                                                       idx + 0 ) );
-            curY = ADD_INT32( curY, cf2_stack_getReal( opStack,
-                                                       idx + 1 ) );
-
-            cf2_glyphpath_lineTo( &glyphPath, curX, curY );
-            idx += 2;
-          }
-
-          while ( idx < count )
-          {
-            CF2_Fixed  x1, y1, x2, y2, x3, y3;
-
-
-            x1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 0 ), curX );
-            y1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 1 ), curY );
-            x2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 2 ), x1 );
-            y2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 3 ), y1 );
-            x3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 4 ), x2 );
-            y3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 5 ), y2 );
-
-            cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
-
-            curX  = x3;
-            curY  = y3;
-            idx  += 6;
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue; /* no need to clear stack again */
-
-      case cf2_cmdVVCURVETO:
-        {
-          CF2_UInt  count, count1 = cf2_stack_count( opStack );
-          CF2_UInt  idx = 0;
-
-
-          /* if `cf2_stack_count' isn't of the form 4n or 4n+1, */
-          /* we enforce it by clearing the second bit           */
-          /* (and sorting the stack indexing to suit)           */
-          count = count1 & ~2U;
-          idx  += count1 - count;
-
-          FT_TRACE4(( " vvcurveto\n" ));
-
-          while ( idx < count )
-          {
-            CF2_Fixed  x1, y1, x2, y2, x3, y3;
-
-
-            if ( ( count - idx ) & 1 )
-            {
-              x1 = ADD_INT32( cf2_stack_getReal( opStack, idx ), curX );
-
-              idx++;
-            }
-            else
-              x1 = curX;
-
-            y1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 0 ), curY );
-            x2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 1 ), x1 );
-            y2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 2 ), y1 );
-            x3 = x2;
-            y3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 3 ), y2 );
-
-            cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
-
-            curX  = x3;
-            curY  = y3;
-            idx  += 4;
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue; /* no need to clear stack again */
-
-      case cf2_cmdHHCURVETO:
-        {
-          CF2_UInt  count, count1 = cf2_stack_count( opStack );
-          CF2_UInt  idx = 0;
-
-
-          /* if `cf2_stack_count' isn't of the form 4n or 4n+1, */
-          /* we enforce it by clearing the second bit           */
-          /* (and sorting the stack indexing to suit)           */
-          count = count1 & ~2U;
-          idx  += count1 - count;
-
-          FT_TRACE4(( " hhcurveto\n" ));
-
-          while ( idx < count )
-          {
-            CF2_Fixed  x1, y1, x2, y2, x3, y3;
-
-
-            if ( ( count - idx ) & 1 )
-            {
-              y1 = ADD_INT32( cf2_stack_getReal( opStack, idx ), curY );
-
-              idx++;
-            }
-            else
-              y1 = curY;
-
-            x1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 0 ), curX );
-            x2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 1 ), x1 );
-            y2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 2 ), y1 );
-            x3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 3 ), x2 );
-            y3 = y2;
-
-            cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
-
-            curX  = x3;
-            curY  = y3;
-            idx  += 4;
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue; /* no need to clear stack again */
-
-      case cf2_cmdVHCURVETO:
-      case cf2_cmdHVCURVETO:
-        {
-          CF2_UInt  count, count1 = cf2_stack_count( opStack );
-          CF2_UInt  idx = 0;
-
-          FT_Bool  alternate = FT_BOOL( op1 == cf2_cmdHVCURVETO );
-
-
-          /* if `cf2_stack_count' isn't of the form 8n, 8n+1, */
-          /* 8n+4, or 8n+5, we enforce it by clearing the     */
-          /* second bit                                       */
-          /* (and sorting the stack indexing to suit)         */
-          count = count1 & ~2U;
-          idx  += count1 - count;
-
-          FT_TRACE4(( alternate ? " hvcurveto\n" : " vhcurveto\n" ));
-
-          while ( idx < count )
-          {
-            CF2_Fixed x1, x2, x3, y1, y2, y3;
-
-
-            if ( alternate )
-            {
-              x1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 0 ), curX );
-              y1 = curY;
-              x2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 1 ), x1 );
-              y2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 2 ), y1 );
-              y3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 3 ), y2 );
-
-              if ( count - idx == 5 )
-              {
-                x3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 4 ), x2 );
-
-                idx++;
-              }
-              else
-                x3 = x2;
-
-              alternate = FALSE;
-            }
-            else
-            {
-              x1 = curX;
-              y1 = ADD_INT32( cf2_stack_getReal( opStack, idx + 0 ), curY );
-              x2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 1 ), x1 );
-              y2 = ADD_INT32( cf2_stack_getReal( opStack, idx + 2 ), y1 );
-              x3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 3 ), x2 );
-
-              if ( count - idx == 5 )
-              {
-                y3 = ADD_INT32( cf2_stack_getReal( opStack, idx + 4 ), y2 );
-
-                idx++;
-              }
-              else
-                y3 = y2;
-
-              alternate = TRUE;
-            }
-
-            cf2_glyphpath_curveTo( &glyphPath, x1, y1, x2, y2, x3, y3 );
-
-            curX  = x3;
-            curY  = y3;
-            idx  += 4;
-          }
-
-          cf2_stack_clear( opStack );
-        }
-        continue;     /* no need to clear stack again */
-
-      case cf2_cmdEXTENDEDNMBR:
-        {
-          CF2_Int  v;
-
-          CF2_Int  byte1 = cf2_buf_readByte( charstring );
-          CF2_Int  byte2 = cf2_buf_readByte( charstring );
-
-
-          v = (FT_Short)( ( byte1 << 8 ) |
-                            byte2        );
-
-          FT_TRACE4(( " %d", v ));
-
-          cf2_stack_pushInt( opStack, v );
-        }
-        continue;
-
-      default:
-        /* numbers */
-        {
-          if ( /* op1 >= 32 && */ op1 <= 246 )
-          {
-            CF2_Int  v;
-
-
-            v = op1 - 139;
-
-            FT_TRACE4(( " %d", v ));
-
-            /* -107 .. 107 */
-            cf2_stack_pushInt( opStack, v );
-          }
-
-          else if ( /* op1 >= 247 && */ op1 <= 250 )
-          {
-            CF2_Int  v;
-
-
-            v  = op1;
-            v -= 247;
-            v *= 256;
-            v += cf2_buf_readByte( charstring );
-            v += 108;
-
-            FT_TRACE4(( " %d", v ));
-
-            /* 108 .. 1131 */
-            cf2_stack_pushInt( opStack, v );
-          }
-
-          else if ( /* op1 >= 251 && */ op1 <= 254 )
-          {
-            CF2_Int  v;
-
-
-            v  = op1;
-            v -= 251;
-            v *= 256;
-            v += cf2_buf_readByte( charstring );
-            v  = -v - 108;
-
-            FT_TRACE4(( " %d", v ));
-
-            /* -1131 .. -108 */
-            cf2_stack_pushInt( opStack, v );
-          }
-
-          else /* op1 == 255 */
-          {
-            CF2_Fixed  v;
-
-            FT_UInt32  byte1 = (FT_UInt32)cf2_buf_readByte( charstring );
-            FT_UInt32  byte2 = (FT_UInt32)cf2_buf_readByte( charstring );
-            FT_UInt32  byte3 = (FT_UInt32)cf2_buf_readByte( charstring );
-            FT_UInt32  byte4 = (FT_UInt32)cf2_buf_readByte( charstring );
-
-
-            v = (CF2_Fixed)( ( byte1 << 24 ) |
-                             ( byte2 << 16 ) |
-                             ( byte3 <<  8 ) |
-                               byte4         );
-
-            FT_TRACE4(( " %.5f", v / 65536.0 ));
-
-            cf2_stack_pushFixed( opStack, v );
-          }
-        }
-        continue;   /* don't clear stack */
-
-      } /* end of switch statement checking `op1' */
-
-      cf2_stack_clear( opStack );
-
-    } /* end of main interpreter loop */
-
-    /* we get here if the charstring ends without cf2_cmdENDCHAR */
-    FT_TRACE4(( "cf2_interpT2CharString:"
-                "  charstring ends without ENDCHAR\n" ));
-
-  exit:
-    /* check whether last error seen is also the first one */
-    cf2_setError( error, lastError );
-
-    if ( *error )
-      FT_TRACE4(( "charstring error %d\n", *error ));
-
-    /* free resources from objects we've used */
-    cf2_glyphpath_finalize( &glyphPath );
-    cf2_arrstack_finalize( &vStemHintArray );
-    cf2_arrstack_finalize( &hStemHintArray );
-    cf2_arrstack_finalize( &subrStack );
-    cf2_stack_free( opStack );
-
-    FT_TRACE4(( "\n" ));
-
-    return;
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2intrp.h b/thirdparty/freetype/src/cff/cf2intrp.h
deleted file mode 100644
index ec030e8944..0000000000
--- a/thirdparty/freetype/src/cff/cf2intrp.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2font.h                                                              */
-/*                                                                         */
-/*    Adobe's CFF Interpreter (specification).                             */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2INTRP_H_
-#define CF2INTRP_H_
-
-
-#include "cf2ft.h"
-#include "cf2hints.h"
-
-
-FT_BEGIN_HEADER
-
-
-  FT_LOCAL( void )
-  cf2_hintmask_init( CF2_HintMask  hintmask,
-                     FT_Error*     error );
-  FT_LOCAL( FT_Bool )
-  cf2_hintmask_isValid( const CF2_HintMask  hintmask );
-  FT_LOCAL( FT_Bool )
-  cf2_hintmask_isNew( const CF2_HintMask  hintmask );
-  FT_LOCAL( void )
-  cf2_hintmask_setNew( CF2_HintMask  hintmask,
-                       FT_Bool       val );
-  FT_LOCAL( FT_Byte* )
-  cf2_hintmask_getMaskPtr( CF2_HintMask  hintmask );
-  FT_LOCAL( void )
-  cf2_hintmask_setAll( CF2_HintMask  hintmask,
-                       size_t        bitCount );
-
-  FT_LOCAL( void )
-  cf2_interpT2CharString( CF2_Font              font,
-                          CF2_Buffer            charstring,
-                          CF2_OutlineCallbacks  callbacks,
-                          const FT_Vector*      translation,
-                          FT_Bool               doingSeac,
-                          CF2_Fixed             curX,
-                          CF2_Fixed             curY,
-                          CF2_Fixed*            width );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2INTRP_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2read.c b/thirdparty/freetype/src/cff/cf2read.c
deleted file mode 100644
index 2b429e3eeb..0000000000
--- a/thirdparty/freetype/src/cff/cf2read.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2read.c                                                              */
-/*                                                                         */
-/*    Adobe's code for stream handling (body).                             */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2glue.h"
-
-#include "cf2error.h"
-
-
-  /* Define CF2_IO_FAIL as 1 to enable random errors and random */
-  /* value errors in I/O.                                       */
-#define CF2_IO_FAIL  0
-
-
-#if CF2_IO_FAIL
-
-  /* set the .00 value to a nonzero probability */
-  static int
-  randomError2( void )
-  {
-    /* for region buffer ReadByte (interp) function */
-    return (double)rand() / RAND_MAX < .00;
-  }
-
-  /* set the .00 value to a nonzero probability */
-  static CF2_Int
-  randomValue()
-  {
-    return (double)rand() / RAND_MAX < .00 ? rand() : 0;
-  }
-
-#endif /* CF2_IO_FAIL */
-
-
-  /* Region Buffer                                      */
-  /*                                                    */
-  /* Can be constructed from a copied buffer managed by */
-  /* `FCM_getDatablock'.                                */
-  /* Reads bytes with check for end of buffer.          */
-
-  /* reading past the end of the buffer sets error and returns zero */
-  FT_LOCAL_DEF( CF2_Int )
-  cf2_buf_readByte( CF2_Buffer  buf )
-  {
-    if ( buf->ptr < buf->end )
-    {
-#if CF2_IO_FAIL
-      if ( randomError2() )
-      {
-        CF2_SET_ERROR( buf->error, Invalid_Stream_Operation );
-        return 0;
-      }
-
-      return *(buf->ptr)++ + randomValue();
-#else
-      return *(buf->ptr)++;
-#endif
-    }
-    else
-    {
-      CF2_SET_ERROR( buf->error, Invalid_Stream_Operation );
-      return 0;
-    }
-  }
-
-
-  /* note: end condition can occur without error */
-  FT_LOCAL_DEF( FT_Bool )
-  cf2_buf_isEnd( CF2_Buffer  buf )
-  {
-    return (FT_Bool)( buf->ptr >= buf->end );
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2read.h b/thirdparty/freetype/src/cff/cf2read.h
deleted file mode 100644
index b0b0db803a..0000000000
--- a/thirdparty/freetype/src/cff/cf2read.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2read.h                                                              */
-/*                                                                         */
-/*    Adobe's code for stream handling (specification).                    */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2READ_H_
-#define CF2READ_H_
-
-
-FT_BEGIN_HEADER
-
-
-  typedef struct  CF2_BufferRec_
-  {
-    FT_Error*       error;
-    const FT_Byte*  start;
-    const FT_Byte*  end;
-    const FT_Byte*  ptr;
-
-  } CF2_BufferRec, *CF2_Buffer;
-
-
-  FT_LOCAL( CF2_Int )
-  cf2_buf_readByte( CF2_Buffer  buf );
-  FT_LOCAL( FT_Bool )
-  cf2_buf_isEnd( CF2_Buffer  buf );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2READ_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2stack.c b/thirdparty/freetype/src/cff/cf2stack.c
deleted file mode 100644
index 12a026d21d..0000000000
--- a/thirdparty/freetype/src/cff/cf2stack.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2stack.c                                                             */
-/*                                                                         */
-/*    Adobe's code for emulating a CFF stack (body).                       */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include "cf2ft.h"
-#include FT_INTERNAL_DEBUG_H
-
-#include "cf2glue.h"
-#include "cf2font.h"
-#include "cf2stack.h"
-
-#include "cf2error.h"
-
-
-  /* Allocate and initialize an instance of CF2_Stack.       */
-  /* Note: This function returns NULL on error (does not set */
-  /* `error').                                               */
-  FT_LOCAL_DEF( CF2_Stack )
-  cf2_stack_init( FT_Memory  memory,
-                  FT_Error*  e,
-                  FT_UInt    stackSize )
-  {
-    FT_Error  error = FT_Err_Ok;     /* for FT_NEW */
-
-    CF2_Stack  stack = NULL;
-
-
-    if ( !FT_NEW( stack ) )
-    {
-      /* initialize the structure; FT_NEW zeroes it */
-      stack->memory = memory;
-      stack->error  = e;
-    }
-
-    /* allocate the stack buffer */
-    if ( FT_NEW_ARRAY( stack->buffer, stackSize ) )
-    {
-      FT_FREE( stack );
-      return NULL;
-    }
-
-    stack->stackSize = stackSize;
-    stack->top       = stack->buffer;     /* empty stack */
-
-    return stack;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_stack_free( CF2_Stack  stack )
-  {
-    if ( stack )
-    {
-      FT_Memory  memory = stack->memory;
-
-      /* free the buffer */
-      FT_FREE( stack->buffer );
-
-      /* free the main structure */
-      FT_FREE( stack );
-    }
-  }
-
-
-  FT_LOCAL_DEF( CF2_UInt )
-  cf2_stack_count( CF2_Stack  stack )
-  {
-    return (CF2_UInt)( stack->top - stack->buffer );
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_stack_pushInt( CF2_Stack  stack,
-                     CF2_Int    val )
-  {
-    if ( stack->top == stack->buffer + stack->stackSize )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Overflow );
-      return;     /* stack overflow */
-    }
-
-    stack->top->u.i  = val;
-    stack->top->type = CF2_NumberInt;
-    stack->top++;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_stack_pushFixed( CF2_Stack  stack,
-                       CF2_Fixed  val )
-  {
-    if ( stack->top == stack->buffer + stack->stackSize )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Overflow );
-      return;     /* stack overflow */
-    }
-
-    stack->top->u.r  = val;
-    stack->top->type = CF2_NumberFixed;
-    stack->top++;
-  }
-
-
-  /* this function is only allowed to pop an integer type */
-  FT_LOCAL_DEF( CF2_Int )
-  cf2_stack_popInt( CF2_Stack  stack )
-  {
-    if ( stack->top == stack->buffer )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Underflow );
-      return 0;   /* underflow */
-    }
-    if ( stack->top[-1].type != CF2_NumberInt )
-    {
-      CF2_SET_ERROR( stack->error, Syntax_Error );
-      return 0;   /* type mismatch */
-    }
-
-    stack->top--;
-
-    return stack->top->u.i;
-  }
-
-
-  /* Note: type mismatch is silently cast */
-  /* TODO: check this                     */
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_stack_popFixed( CF2_Stack  stack )
-  {
-    if ( stack->top == stack->buffer )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Underflow );
-      return cf2_intToFixed( 0 );    /* underflow */
-    }
-
-    stack->top--;
-
-    switch ( stack->top->type )
-    {
-    case CF2_NumberInt:
-      return cf2_intToFixed( stack->top->u.i );
-    case CF2_NumberFrac:
-      return cf2_fracToFixed( stack->top->u.f );
-    default:
-      return stack->top->u.r;
-    }
-  }
-
-
-  /* Note: type mismatch is silently cast */
-  /* TODO: check this                     */
-  FT_LOCAL_DEF( CF2_Fixed )
-  cf2_stack_getReal( CF2_Stack  stack,
-                     CF2_UInt   idx )
-  {
-    FT_ASSERT( cf2_stack_count( stack ) <= stack->stackSize );
-
-    if ( idx >= cf2_stack_count( stack ) )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Overflow );
-      return cf2_intToFixed( 0 );    /* bounds error */
-    }
-
-    switch ( stack->buffer[idx].type )
-    {
-    case CF2_NumberInt:
-      return cf2_intToFixed( stack->buffer[idx].u.i );
-    case CF2_NumberFrac:
-      return cf2_fracToFixed( stack->buffer[idx].u.f );
-    default:
-      return stack->buffer[idx].u.r;
-    }
-  }
-
-
-  /* provide random access to stack */
-  FT_LOCAL_DEF( void )
-  cf2_stack_setReal( CF2_Stack  stack,
-                     CF2_UInt   idx,
-                     CF2_Fixed  val )
-  {
-    if ( idx > cf2_stack_count( stack ) )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Overflow );
-      return;
-    }
-
-    stack->buffer[idx].u.r  = val;
-    stack->buffer[idx].type = CF2_NumberFixed;
-  }
-
-
-  /* discard (pop) num values from stack */
-  FT_LOCAL_DEF( void )
-  cf2_stack_pop( CF2_Stack  stack,
-                 CF2_UInt   num )
-  {
-    if ( num > cf2_stack_count( stack ) )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Underflow );
-      return;
-    }
-    stack->top -= num;
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_stack_roll( CF2_Stack  stack,
-                  CF2_Int    count,
-                  CF2_Int    shift )
-  {
-    /* we initialize this variable to avoid compiler warnings */
-    CF2_StackNumber  last = { { 0 }, CF2_NumberInt };
-
-    CF2_Int  start_idx, idx, i;
-
-
-    if ( count < 2 )
-      return; /* nothing to do (values 0 and 1), or undefined value */
-
-    if ( (CF2_UInt)count > cf2_stack_count( stack ) )
-    {
-      CF2_SET_ERROR( stack->error, Stack_Overflow );
-      return;
-    }
-
-    if ( shift < 0 )
-      shift = -( ( -shift ) % count );
-    else
-      shift %= count;
-
-    if ( shift == 0 )
-      return; /* nothing to do */
-
-    /* We use the following algorithm to do the rolling, */
-    /* which needs two temporary variables only.         */
-    /*                                                   */
-    /* Example:                                          */
-    /*                                                   */
-    /*   count = 8                                       */
-    /*   shift = 2                                       */
-    /*                                                   */
-    /*   stack indices before roll:  7 6 5 4 3 2 1 0     */
-    /*   stack indices after roll:   1 0 7 6 5 4 3 2     */
-    /*                                                   */
-    /* The value of index 0 gets moved to index 2, while */
-    /* the old value of index 2 gets moved to index 4,   */
-    /* and so on.  We thus have the following copying    */
-    /* chains for shift value 2.                         */
-    /*                                                   */
-    /*   0 -> 2 -> 4 -> 6 -> 0                           */
-    /*   1 -> 3 -> 5 -> 7 -> 1                           */
-    /*                                                   */
-    /* If `count' and `shift' are incommensurable, we    */
-    /* have a single chain only.  Otherwise, increase    */
-    /* the start index by 1 after the first chain, then  */
-    /* do the next chain until all elements in all       */
-    /* chains are handled.                               */
-
-    start_idx = -1;
-    idx       = -1;
-    for ( i = 0; i < count; i++ )
-    {
-      CF2_StackNumber  tmp;
-
-
-      if ( start_idx == idx )
-      {
-        start_idx++;
-        idx  = start_idx;
-        last = stack->buffer[idx];
-      }
-
-      idx += shift;
-      if ( idx >= count )
-        idx -= count;
-      else if ( idx < 0 )
-        idx += count;
-
-      tmp                = stack->buffer[idx];
-      stack->buffer[idx] = last;
-      last               = tmp;
-    }
-  }
-
-
-  FT_LOCAL_DEF( void )
-  cf2_stack_clear( CF2_Stack  stack )
-  {
-    stack->top = stack->buffer;
-  }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2stack.h b/thirdparty/freetype/src/cff/cf2stack.h
deleted file mode 100644
index ef08eefe41..0000000000
--- a/thirdparty/freetype/src/cff/cf2stack.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2stack.h                                                             */
-/*                                                                         */
-/*    Adobe's code for emulating a CFF stack (specification).              */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2STACK_H_
-#define CF2STACK_H_
-
-
-FT_BEGIN_HEADER
-
-
-  /* CFF operand stack; specified maximum of 48 or 192 values */
-  typedef struct  CF2_StackNumber_
-  {
-    union
-    {
-      CF2_Fixed  r;      /* 16.16 fixed point */
-      CF2_Frac   f;      /* 2.30 fixed point (for font matrix) */
-      CF2_Int    i;
-    } u;
-
-    CF2_NumberType  type;
-
-  } CF2_StackNumber;
-
-
-  typedef struct  CF2_StackRec_
-  {
-    FT_Memory         memory;
-    FT_Error*         error;
-    CF2_StackNumber*  buffer;
-    CF2_StackNumber*  top;
-    FT_UInt           stackSize;
-
-  } CF2_StackRec, *CF2_Stack;
-
-
-  FT_LOCAL( CF2_Stack )
-  cf2_stack_init( FT_Memory  memory,
-                  FT_Error*  error,
-                  FT_UInt    stackSize );
-  FT_LOCAL( void )
-  cf2_stack_free( CF2_Stack  stack );
-
-  FT_LOCAL( CF2_UInt )
-  cf2_stack_count( CF2_Stack  stack );
-
-  FT_LOCAL( void )
-  cf2_stack_pushInt( CF2_Stack  stack,
-                     CF2_Int    val );
-  FT_LOCAL( void )
-  cf2_stack_pushFixed( CF2_Stack  stack,
-                       CF2_Fixed  val );
-
-  FT_LOCAL( CF2_Int )
-  cf2_stack_popInt( CF2_Stack  stack );
-  FT_LOCAL( CF2_Fixed )
-  cf2_stack_popFixed( CF2_Stack  stack );
-
-  FT_LOCAL( CF2_Fixed )
-  cf2_stack_getReal( CF2_Stack  stack,
-                     CF2_UInt   idx );
-  FT_LOCAL( void )
-  cf2_stack_setReal( CF2_Stack  stack,
-                     CF2_UInt   idx,
-                     CF2_Fixed  val );
-
-  FT_LOCAL( void )
-  cf2_stack_pop( CF2_Stack  stack,
-                 CF2_UInt   num );
-
-  FT_LOCAL( void )
-  cf2_stack_roll( CF2_Stack  stack,
-                  CF2_Int    count,
-                  CF2_Int    idx );
-
-  FT_LOCAL( void )
-  cf2_stack_clear( CF2_Stack  stack );
-
-
-FT_END_HEADER
-
-
-#endif /* CF2STACK_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cf2types.h b/thirdparty/freetype/src/cff/cf2types.h
deleted file mode 100644
index 5b7e1239af..0000000000
--- a/thirdparty/freetype/src/cff/cf2types.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cf2types.h                                                             */
-/*                                                                         */
-/*    Adobe's code for defining data types (specification only).           */
-/*                                                                         */
-/*  Copyright 2011-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CF2TYPES_H_
-#define CF2TYPES_H_
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-
-FT_BEGIN_HEADER
-
-
-  /*
-   * The data models that we expect to support are as follows:
-   *
-   *   name  char short int long long-long pointer example
-   *  -----------------------------------------------------
-   *   ILP32  8    16    32  32     64*      32    32-bit MacOS, x86
-   *   LLP64  8    16    32  32     64       64    x64
-   *   LP64   8    16    32  64     64       64    64-bit MacOS
-   *
-   *    *) type may be supported by emulation on a 32-bit architecture
-   *
-   */
-
-
-  /* integers at least 32 bits wide */
-#define CF2_UInt  FT_UFast
-#define CF2_Int   FT_Fast
-
-
-  /* fixed-float numbers */
-  typedef FT_Int32  CF2_F16Dot16;
-
-
-FT_END_HEADER
-
-
-#endif /* CF2TYPES_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cff.c b/thirdparty/freetype/src/cff/cff.c
index 1a755d5dad..a34ba9b710 100644
--- a/thirdparty/freetype/src/cff/cff.c
+++ b/thirdparty/freetype/src/cff/cff.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cff.c                                                                  */
-/*                                                                         */
-/*    FreeType OpenType driver component (body only).                      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cff.c
+ *
+ *   FreeType OpenType driver component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -23,7 +23,6 @@
 #include "cffdrivr.c"
 #include "cffgload.c"
 #include "cffparse.c"
-#include "cffpic.c"
 #include "cffload.c"
 #include "cffobjs.c"
 
diff --git a/thirdparty/freetype/src/cff/cffcmap.c b/thirdparty/freetype/src/cff/cffcmap.c
index e45ae1127b..15cc94cafb 100644
--- a/thirdparty/freetype/src/cff/cffcmap.c
+++ b/thirdparty/freetype/src/cff/cffcmap.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffcmap.c                                                              */
-/*                                                                         */
-/*    CFF character mapping table (cmap) support (body).                   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffcmap.c
+ *
+ *   CFF character mapping table (cmap) support (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -161,6 +161,9 @@
     if ( !charset->sids )
       return FT_THROW( No_Unicode_Glyph_Name );
 
+    if ( !psnames->unicodes_init )
+      return FT_THROW( Unimplemented_Feature );
+
     return psnames->unicodes_init( memory,
                                    unicodes,
                                    cff->num_glyphs,
diff --git a/thirdparty/freetype/src/cff/cffcmap.h b/thirdparty/freetype/src/cff/cffcmap.h
index 856a43dd1b..07366bc748 100644
--- a/thirdparty/freetype/src/cff/cffcmap.h
+++ b/thirdparty/freetype/src/cff/cffcmap.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffcmap.h                                                              */
-/*                                                                         */
-/*    CFF character mapping table (cmap) support (specification).          */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffcmap.h
+ *
+ *   CFF character mapping table (cmap) support (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFCMAP_H_
diff --git a/thirdparty/freetype/src/cff/cffdrivr.c b/thirdparty/freetype/src/cff/cffdrivr.c
index df896848da..bbd5c40329 100644
--- a/thirdparty/freetype/src/cff/cffdrivr.c
+++ b/thirdparty/freetype/src/cff/cffdrivr.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffdrivr.c                                                             */
-/*                                                                         */
-/*    OpenType font driver implementation (body).                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffdrivr.c
+ *
+ *   OpenType font driver implementation (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -42,7 +42,6 @@
 #endif
 
 #include "cfferrs.h"
-#include "cffpic.h"
 
 #include FT_SERVICE_FONT_FORMAT_H
 #include FT_SERVICE_GLYPH_DICT_H
@@ -50,14 +49,14 @@
 #include FT_DRIVER_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cffdriver
+#define FT_COMPONENT  cffdriver
 
 
   /*************************************************************************/
@@ -73,38 +72,42 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_get_kerning                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A driver method used to return the kerning vector between two      */
-  /*    glyphs of the same face.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to the source face object.                 */
-  /*                                                                       */
-  /*    left_glyph  :: The index of the left glyph in the kern pair.       */
-  /*                                                                       */
-  /*    right_glyph :: The index of the right glyph in the kern pair.      */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    kerning     :: The kerning vector.  This is in font units for      */
-  /*                   scalable formats, and in pixels for fixed-sizes     */
-  /*                   formats.                                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only horizontal layouts (left-to-right & right-to-left) are        */
-  /*    supported by this function.  Other layouts, or more sophisticated  */
-  /*    kernings, are out of scope of this method (the basic driver        */
-  /*    interface is meant to be simple).                                  */
-  /*                                                                       */
-  /*    They can be implemented by format-specific interfaces.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_get_kerning
+   *
+   * @Description:
+   *   A driver method used to return the kerning vector between two
+   *   glyphs of the same face.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   left_glyph ::
+   *     The index of the left glyph in the kern pair.
+   *
+   *   right_glyph ::
+   *     The index of the right glyph in the kern pair.
+   *
+   * @Output:
+   *   kerning ::
+   *     The kerning vector.  This is in font units for
+   *     scalable formats, and in pixels for fixed-sizes
+   *     formats.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   * @Note:
+   *   Only horizontal layouts (left-to-right & right-to-left) are
+   *   supported by this function.  Other layouts, or more sophisticated
+   *   kernings, are out of scope of this method (the basic driver
+   *   interface is meant to be simple).
+   *
+   *   They can be implemented by format-specific interfaces.
+   */
   FT_CALLBACK_DEF( FT_Error )
   cff_get_kerning( FT_Face     ttface,          /* TT_Face */
                    FT_UInt     left_glyph,
@@ -125,32 +128,36 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_glyph_load                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A driver method used to load a glyph within a given glyph slot.    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    slot        :: A handle to the target slot object where the glyph  */
-  /*                   will be loaded.                                     */
-  /*                                                                       */
-  /*    size        :: A handle to the source face size at which the glyph */
-  /*                   must be scaled, loaded, etc.                        */
-  /*                                                                       */
-  /*    glyph_index :: The index of the glyph in the font file.            */
-  /*                                                                       */
-  /*    load_flags  :: A flag indicating what to load for this glyph.  The */
-  /*                   FT_LOAD_??? constants can be used to control the    */
-  /*                   glyph loading process (e.g., whether the outline    */
-  /*                   should be scaled, whether to load bitmaps or not,   */
-  /*                   whether to hint the outline, etc).                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_glyph_load
+   *
+   * @Description:
+   *   A driver method used to load a glyph within a given glyph slot.
+   *
+   * @Input:
+   *   slot ::
+   *     A handle to the target slot object where the glyph
+   *     will be loaded.
+   *
+   *   size ::
+   *     A handle to the source face size at which the glyph
+   *     must be scaled, loaded, etc.
+   *
+   *   glyph_index ::
+   *     The index of the glyph in the font file.
+   *
+   *   load_flags ::
+   *     A flag indicating what to load for this glyph.  The
+   *     FT_LOAD_??? constants can be used to control the
+   *     glyph loading process (e.g., whether the outline
+   *     should be scaled, whether to load bitmaps or not,
+   *     whether to hint the outline, etc).
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_CALLBACK_DEF( FT_Error )
   cff_glyph_load( FT_GlyphSlot  cffslot,      /* CFF_GlyphSlot */
                   FT_Size       cffsize,      /* CFF_Size      */
@@ -302,7 +309,7 @@
 
 
   /*
-   *  GLYPH DICT SERVICE
+   * GLYPH DICT SERVICE
    *
    */
 
@@ -341,7 +348,7 @@
         FT_ERROR(( "cff_get_glyph_name:"
                    " cannot get glyph name from a CFF2 font\n"
                    "                   "
-                   " without the `PSNames' module\n" ));
+                   " without the `psnames' module\n" ));
         error = FT_THROW( Missing_Module );
         goto Exit;
       }
@@ -352,7 +359,7 @@
       FT_ERROR(( "cff_get_glyph_name:"
                  " cannot get glyph name from CFF & CEF fonts\n"
                  "                   "
-                 " without the `PSNames' module\n" ));
+                 " without the `psnames' module\n" ));
       error = FT_THROW( Missing_Module );
       goto Exit;
     }
@@ -408,7 +415,7 @@
         FT_ERROR(( "cff_get_name_index:"
                    " cannot get glyph index from a CFF2 font\n"
                    "                   "
-                   " without the `PSNames' module\n" ));
+                   " without the `psnames' module\n" ));
         return 0;
       }
     }
@@ -446,7 +453,7 @@
 
 
   /*
-   *  POSTSCRIPT INFO SERVICE
+   * POSTSCRIPT INFO SERVICE
    *
    */
 
@@ -593,7 +600,7 @@
 
 
   /*
-   *  POSTSCRIPT NAME SERVICE
+   * POSTSCRIPT NAME SERVICE
    *
    */
 
@@ -654,8 +661,8 @@
     FT_Library  library = FT_FACE_LIBRARY( face );
 
 
-    if ( cmap->clazz != &CFF_CMAP_ENCODING_CLASS_REC_GET &&
-         cmap->clazz != &CFF_CMAP_UNICODE_CLASS_REC_GET  )
+    if ( cmap->clazz != &cff_cmap_encoding_class_rec &&
+         cmap->clazz != &cff_cmap_unicode_class_rec  )
     {
       FT_Module           sfnt    = FT_Get_Module( library, "sfnt" );
       FT_Service_TTCMaps  service =
@@ -682,7 +689,7 @@
 
 
   /*
-   *  CID INFO SERVICE
+   * CID INFO SERVICE
    *
    */
   static FT_Error
@@ -788,7 +795,7 @@
         goto Fail;
       }
 
-      if ( glyph_index > cff->num_glyphs )
+      if ( glyph_index >= cff->num_glyphs )
       {
         error = FT_THROW( Invalid_Argument );
         goto Fail;
@@ -818,7 +825,7 @@
 
 
   /*
-   *  PROPERTY SERVICE
+   * PROPERTY SERVICE
    *
    */
 
@@ -832,7 +839,7 @@
 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
 
   /*
-   *  MULTIPLE MASTER SERVICE
+   * MULTIPLE MASTER SERVICE
    *
    */
 
@@ -861,6 +868,30 @@
 
 
   static FT_Error
+  cff_set_mm_weightvector( CFF_Face   face,
+                           FT_UInt    len,
+                           FT_Fixed*  weightvector )
+  {
+    FT_Service_MultiMasters  mm = (FT_Service_MultiMasters)face->mm;
+
+
+    return mm->set_mm_weightvector( FT_FACE( face ), len, weightvector );
+  }
+
+
+  static FT_Error
+  cff_get_mm_weightvector( CFF_Face   face,
+                           FT_UInt*   len,
+                           FT_Fixed*  weightvector )
+  {
+    FT_Service_MultiMasters  mm = (FT_Service_MultiMasters)face->mm;
+
+
+    return mm->get_mm_weightvector( FT_FACE( face ), len, weightvector );
+  }
+
+
+  static FT_Error
   cff_get_mm_var( CFF_Face     face,
                   FT_MM_Var*  *master )
   {
@@ -909,22 +940,24 @@
   FT_DEFINE_SERVICE_MULTIMASTERSREC(
     cff_service_multi_masters,
 
-    (FT_Get_MM_Func)        NULL,                   /* get_mm         */
-    (FT_Set_MM_Design_Func) NULL,                   /* set_mm_design  */
-    (FT_Set_MM_Blend_Func)  cff_set_mm_blend,       /* set_mm_blend   */
-    (FT_Get_MM_Blend_Func)  cff_get_mm_blend,       /* get_mm_blend   */
-    (FT_Get_MM_Var_Func)    cff_get_mm_var,         /* get_mm_var     */
-    (FT_Set_Var_Design_Func)cff_set_var_design,     /* set_var_design */
-    (FT_Get_Var_Design_Func)cff_get_var_design,     /* get_var_design */
-    (FT_Set_Instance_Func)  cff_set_instance,       /* set_instance   */
-
-    (FT_Get_Var_Blend_Func) cff_get_var_blend,      /* get_var_blend  */
-    (FT_Done_Blend_Func)    cff_done_blend          /* done_blend     */
+    (FT_Get_MM_Func)             NULL,                    /* get_mm              */
+    (FT_Set_MM_Design_Func)      NULL,                    /* set_mm_design       */
+    (FT_Set_MM_Blend_Func)       cff_set_mm_blend,        /* set_mm_blend        */
+    (FT_Get_MM_Blend_Func)       cff_get_mm_blend,        /* get_mm_blend        */
+    (FT_Get_MM_Var_Func)         cff_get_mm_var,          /* get_mm_var          */
+    (FT_Set_Var_Design_Func)     cff_set_var_design,      /* set_var_design      */
+    (FT_Get_Var_Design_Func)     cff_get_var_design,      /* get_var_design      */
+    (FT_Set_Instance_Func)       cff_set_instance,        /* set_instance        */
+    (FT_Set_MM_WeightVector_Func)cff_set_mm_weightvector, /* set_mm_weightvector */
+    (FT_Get_MM_WeightVector_Func)cff_get_mm_weightvector, /* get_mm_weightvector */
+
+    (FT_Get_Var_Blend_Func)      cff_get_var_blend,       /* get_var_blend       */
+    (FT_Done_Blend_Func)         cff_done_blend           /* done_blend          */
   )
 
 
   /*
-   *  METRICS VARIATIONS SERVICE
+   * METRICS VARIATIONS SERVICE
    *
    */
 
@@ -968,7 +1001,7 @@
 
 
   /*
-   *  CFFLOAD SERVICE
+   * CFFLOAD SERVICE
    *
    */
 
@@ -1001,54 +1034,54 @@
     cff_services,
 
     FT_SERVICE_ID_FONT_FORMAT,          FT_FONT_FORMAT_CFF,
-    FT_SERVICE_ID_MULTI_MASTERS,        &CFF_SERVICE_MULTI_MASTERS_GET,
-    FT_SERVICE_ID_METRICS_VARIATIONS,   &CFF_SERVICE_METRICS_VAR_GET,
-    FT_SERVICE_ID_POSTSCRIPT_INFO,      &CFF_SERVICE_PS_INFO_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_GLYPH_DICT,           &CFF_SERVICE_GLYPH_DICT_GET,
-    FT_SERVICE_ID_TT_CMAP,              &CFF_SERVICE_GET_CMAP_INFO_GET,
-    FT_SERVICE_ID_CID,                  &CFF_SERVICE_CID_INFO_GET,
-    FT_SERVICE_ID_PROPERTIES,           &CFF_SERVICE_PROPERTIES_GET,
-    FT_SERVICE_ID_CFF_LOAD,             &CFF_SERVICE_CFF_LOAD_GET
+    FT_SERVICE_ID_MULTI_MASTERS,        &cff_service_multi_masters,
+    FT_SERVICE_ID_METRICS_VARIATIONS,   &cff_service_metrics_variations,
+    FT_SERVICE_ID_POSTSCRIPT_INFO,      &cff_service_ps_info,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
+    FT_SERVICE_ID_GLYPH_DICT,           &cff_service_glyph_dict,
+    FT_SERVICE_ID_TT_CMAP,              &cff_service_get_cmap_info,
+    FT_SERVICE_ID_CID,                  &cff_service_cid_info,
+    FT_SERVICE_ID_PROPERTIES,           &cff_service_properties,
+    FT_SERVICE_ID_CFF_LOAD,             &cff_service_cff_load
   )
 #elif !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES
   FT_DEFINE_SERVICEDESCREC8(
     cff_services,
 
     FT_SERVICE_ID_FONT_FORMAT,          FT_FONT_FORMAT_CFF,
-    FT_SERVICE_ID_POSTSCRIPT_INFO,      &CFF_SERVICE_PS_INFO_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_GLYPH_DICT,           &CFF_SERVICE_GLYPH_DICT_GET,
-    FT_SERVICE_ID_TT_CMAP,              &CFF_SERVICE_GET_CMAP_INFO_GET,
-    FT_SERVICE_ID_CID,                  &CFF_SERVICE_CID_INFO_GET,
-    FT_SERVICE_ID_PROPERTIES,           &CFF_SERVICE_PROPERTIES_GET,
-    FT_SERVICE_ID_CFF_LOAD,             &CFF_SERVICE_CFF_LOAD_GET
+    FT_SERVICE_ID_POSTSCRIPT_INFO,      &cff_service_ps_info,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
+    FT_SERVICE_ID_GLYPH_DICT,           &cff_service_glyph_dict,
+    FT_SERVICE_ID_TT_CMAP,              &cff_service_get_cmap_info,
+    FT_SERVICE_ID_CID,                  &cff_service_cid_info,
+    FT_SERVICE_ID_PROPERTIES,           &cff_service_properties,
+    FT_SERVICE_ID_CFF_LOAD,             &cff_service_cff_load
   )
 #elif defined TT_CONFIG_OPTION_GX_VAR_SUPPORT
   FT_DEFINE_SERVICEDESCREC9(
     cff_services,
 
     FT_SERVICE_ID_FONT_FORMAT,          FT_FONT_FORMAT_CFF,
-    FT_SERVICE_ID_MULTI_MASTERS,        &CFF_SERVICE_MULTI_MASTERS_GET,
-    FT_SERVICE_ID_METRICS_VARIATIONS,   &CFF_SERVICE_METRICS_VAR_GET,
-    FT_SERVICE_ID_POSTSCRIPT_INFO,      &CFF_SERVICE_PS_INFO_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_TT_CMAP,              &CFF_SERVICE_GET_CMAP_INFO_GET,
-    FT_SERVICE_ID_CID,                  &CFF_SERVICE_CID_INFO_GET,
-    FT_SERVICE_ID_PROPERTIES,           &CFF_SERVICE_PROPERTIES_GET,
-    FT_SERVICE_ID_CFF_LOAD,             &CFF_SERVICE_CFF_LOAD_GET
+    FT_SERVICE_ID_MULTI_MASTERS,        &cff_service_multi_masters,
+    FT_SERVICE_ID_METRICS_VARIATIONS,   &cff_service_metrics_var,
+    FT_SERVICE_ID_POSTSCRIPT_INFO,      &cff_service_ps_info,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
+    FT_SERVICE_ID_TT_CMAP,              &cff_service_get_cmap_info,
+    FT_SERVICE_ID_CID,                  &cff_service_cid_info,
+    FT_SERVICE_ID_PROPERTIES,           &cff_service_properties,
+    FT_SERVICE_ID_CFF_LOAD,             &cff_service_cff_load
   )
 #else
   FT_DEFINE_SERVICEDESCREC7(
     cff_services,
 
     FT_SERVICE_ID_FONT_FORMAT,          FT_FONT_FORMAT_CFF,
-    FT_SERVICE_ID_POSTSCRIPT_INFO,      &CFF_SERVICE_PS_INFO_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_TT_CMAP,              &CFF_SERVICE_GET_CMAP_INFO_GET,
-    FT_SERVICE_ID_CID,                  &CFF_SERVICE_CID_INFO_GET,
-    FT_SERVICE_ID_PROPERTIES,           &CFF_SERVICE_PROPERTIES_GET,
-    FT_SERVICE_ID_CFF_LOAD,             &CFF_SERVICE_CFF_LOAD_GET
+    FT_SERVICE_ID_POSTSCRIPT_INFO,      &cff_service_ps_info,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name,
+    FT_SERVICE_ID_TT_CMAP,              &cff_service_get_cmap_info,
+    FT_SERVICE_ID_CID,                  &cff_service_cid_info,
+    FT_SERVICE_ID_PROPERTIES,           &cff_service_properties,
+    FT_SERVICE_ID_CFF_LOAD,             &cff_service_cff_load
   )
 #endif
 
@@ -1062,27 +1095,16 @@
     FT_Module_Interface  result;
 
 
-    /* CFF_SERVICES_GET dereferences `library' in PIC mode */
-#ifdef FT_CONFIG_OPTION_PIC
-    if ( !driver )
-      return NULL;
-    library = driver->library;
-    if ( !library )
-      return NULL;
-#endif
-
-    result = ft_service_list_lookup( CFF_SERVICES_GET, module_interface );
+    result = ft_service_list_lookup( cff_services, module_interface );
     if ( result )
       return result;
 
-    /* `driver' is not yet evaluated in non-PIC mode */
-#ifndef FT_CONFIG_OPTION_PIC
+    /* `driver' is not yet evaluated */
     if ( !driver )
       return NULL;
     library = driver->library;
     if ( !library )
       return NULL;
-#endif
 
     /* we pass our request to the `sfnt' module */
     sfnt = FT_Get_Module( library, "sfnt" );
diff --git a/thirdparty/freetype/src/cff/cffdrivr.h b/thirdparty/freetype/src/cff/cffdrivr.h
index ad7c3ad70a..f2bbcfe4f1 100644
--- a/thirdparty/freetype/src/cff/cffdrivr.h
+++ b/thirdparty/freetype/src/cff/cffdrivr.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffdrivr.h                                                             */
-/*                                                                         */
-/*    High-level OpenType driver interface (specification).                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffdrivr.h
+ *
+ *   High-level OpenType driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFDRIVER_H_
@@ -26,10 +26,8 @@
 
 FT_BEGIN_HEADER
 
-
   FT_DECLARE_DRIVER( cff_driver_class )
 
-
 FT_END_HEADER
 
 #endif /* CFFDRIVER_H_ */
diff --git a/thirdparty/freetype/src/cff/cfferrs.h b/thirdparty/freetype/src/cff/cfferrs.h
index b2e1bfaf9d..78d47a156d 100644
--- a/thirdparty/freetype/src/cff/cfferrs.h
+++ b/thirdparty/freetype/src/cff/cfferrs.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cfferrs.h                                                              */
-/*                                                                         */
-/*    CFF error codes (specification only).                                */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the CFF error enumeration constants.      */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * cfferrs.h
+ *
+ *   CFF error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the CFF error enumeration constants.
+   *
+   */
 
 #ifndef CFFERRS_H_
 #define CFFERRS_H_
diff --git a/thirdparty/freetype/src/cff/cffgload.c b/thirdparty/freetype/src/cff/cffgload.c
index c58471ce86..36aa7d1b9c 100644
--- a/thirdparty/freetype/src/cff/cffgload.c
+++ b/thirdparty/freetype/src/cff/cffgload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffgload.c                                                             */
-/*                                                                         */
-/*    OpenType Glyph Loader (body).                                        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffgload.c
+ *
+ *   OpenType Glyph Loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -31,14 +31,14 @@
 #include "cfferrs.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cffgload
+#define FT_COMPONENT  cffgload
 
 
   FT_LOCAL_DEF( FT_Error )
@@ -280,16 +280,16 @@
           glyph->root.outline.n_points   = 0;
           glyph->root.outline.n_contours = 0;
 
-          glyph->root.metrics.width  = (FT_Pos)metrics.width  << 6;
-          glyph->root.metrics.height = (FT_Pos)metrics.height << 6;
+          glyph->root.metrics.width  = (FT_Pos)metrics.width  * 64;
+          glyph->root.metrics.height = (FT_Pos)metrics.height * 64;
 
-          glyph->root.metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6;
-          glyph->root.metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6;
-          glyph->root.metrics.horiAdvance  = (FT_Pos)metrics.horiAdvance  << 6;
+          glyph->root.metrics.horiBearingX = (FT_Pos)metrics.horiBearingX * 64;
+          glyph->root.metrics.horiBearingY = (FT_Pos)metrics.horiBearingY * 64;
+          glyph->root.metrics.horiAdvance  = (FT_Pos)metrics.horiAdvance  * 64;
 
-          glyph->root.metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6;
-          glyph->root.metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6;
-          glyph->root.metrics.vertAdvance  = (FT_Pos)metrics.vertAdvance  << 6;
+          glyph->root.metrics.vertBearingX = (FT_Pos)metrics.vertBearingX * 64;
+          glyph->root.metrics.vertBearingY = (FT_Pos)metrics.vertBearingY * 64;
+          glyph->root.metrics.vertAdvance  = (FT_Pos)metrics.vertAdvance  * 64;
 
           glyph->root.format = FT_GLYPH_FORMAT_BITMAP;
 
@@ -414,7 +414,7 @@
         decoder.width_only = TRUE;
 
       decoder.builder.no_recurse =
-        (FT_Bool)( load_flags & FT_LOAD_NO_RECURSE );
+        FT_BOOL( load_flags & FT_LOAD_NO_RECURSE );
 
       /* now load the unscaled outline */
       error = cff_get_glyph_data( face, glyph_index,
diff --git a/thirdparty/freetype/src/cff/cffgload.h b/thirdparty/freetype/src/cff/cffgload.h
index 803f3974fc..754c55acf9 100644
--- a/thirdparty/freetype/src/cff/cffgload.h
+++ b/thirdparty/freetype/src/cff/cffgload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffgload.h                                                             */
-/*                                                                         */
-/*    OpenType Glyph Loader (specification).                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffgload.h
+ *
+ *   OpenType Glyph Loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFGLOAD_H_
diff --git a/thirdparty/freetype/src/cff/cffload.c b/thirdparty/freetype/src/cff/cffload.c
index 1c6fe51566..12efd18dc4 100644
--- a/thirdparty/freetype/src/cff/cffload.c
+++ b/thirdparty/freetype/src/cff/cffload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffload.c                                                              */
-/*                                                                         */
-/*    OpenType and CFF data/program tables loader (body).                  */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffload.c
+ *
+ *   OpenType and CFF data/program tables loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -196,14 +196,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cffload
+#define FT_COMPONENT  cffload
 
 
   /* read an offset from the index's stream current position */
@@ -1398,7 +1398,14 @@
     FT_UInt       master;
 
 
-    FT_ASSERT( lenNDV == 0 || NDV );
+    /* protect against malformed fonts */
+    if ( !( lenNDV == 0 || NDV ) )
+    {
+      FT_TRACE4(( " cff_blend_build_vector:"
+                  " Malformed Normalize Design Vector data\n" ));
+      error = FT_THROW( Invalid_File_Format );
+      goto Exit;
+    }
 
     blend->builtBV = FALSE;
 
@@ -2080,13 +2087,13 @@
       /*
        * Initialize the random number generator.
        *
-       * . If we have a face-specific seed, use it.
+       * - If we have a face-specific seed, use it.
        *   If non-zero, update it to a positive value.
        *
-       * . Otherwise, use the seed from the CFF driver.
+       * - Otherwise, use the seed from the CFF driver.
        *   If non-zero, update it to a positive value.
        *
-       * . If the random value is zero, use the seed given by the subfont's
+       * - If the random value is zero, use the seed given by the subfont's
        *   `initialRandomSeed' value.
        *
        */
diff --git a/thirdparty/freetype/src/cff/cffload.h b/thirdparty/freetype/src/cff/cffload.h
index 14d14e2112..42d2696f33 100644
--- a/thirdparty/freetype/src/cff/cffload.h
+++ b/thirdparty/freetype/src/cff/cffload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffload.h                                                              */
-/*                                                                         */
-/*    OpenType & CFF data/program tables loader (specification).           */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffload.h
+ *
+ *   OpenType & CFF data/program tables loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFLOAD_H_
diff --git a/thirdparty/freetype/src/cff/cffobjs.c b/thirdparty/freetype/src/cff/cffobjs.c
index a2d7aec65e..1a1030c065 100644
--- a/thirdparty/freetype/src/cff/cffobjs.c
+++ b/thirdparty/freetype/src/cff/cffobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffobjs.c                                                              */
-/*                                                                         */
-/*    OpenType objects manager (body).                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffobjs.c
+ *
+ *   OpenType objects manager (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -37,7 +37,6 @@
 #include "cffobjs.h"
 #include "cffload.h"
 #include "cffcmap.h"
-#include "cffpic.h"
 
 #include "cfferrs.h"
 
@@ -45,21 +44,21 @@
 #include FT_SERVICE_CFF_TABLE_LOAD_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cffobjs
+#define FT_COMPONENT  cffobjs
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            SIZE FUNCTIONS                             */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                           SIZE FUNCTIONS
+   *
+   */
 
 
   static PSH_Globals_Funcs
@@ -341,11 +340,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            SLOT  FUNCTIONS                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                           SLOT  FUNCTIONS
+   *
+   */
 
   FT_LOCAL_DEF( void )
   cff_slot_done( FT_GlyphSlot  slot )
@@ -383,11 +382,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                           FACE  FUNCTIONS                             */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                          FACE  FUNCTIONS
+   *
+   */
 
   static FT_String*
   cff_strcpy( FT_Memory         memory,
@@ -645,14 +644,14 @@
 
       dict = &cff->top_font.font_dict;
 
-      /* we need the `PSNames' module for CFF and CEF formats */
+      /* we need the `psnames' module for CFF and CEF formats */
       /* which aren't CID-keyed                               */
       if ( dict->cid_registry == 0xFFFFU && !psnames )
       {
         FT_ERROR(( "cff_face_init:"
                    " cannot open CFF & CEF fonts\n"
                    "              "
-                   " without the `PSNames' module\n" ));
+                   " without the `psnames' module\n" ));
         error = FT_THROW( Missing_Module );
         goto Exit;
       }
@@ -965,10 +964,10 @@
           /* assume "Regular" style if we don't know better */
           cffface->style_name = cff_strcpy( memory, (char *)"Regular" );
 
-        /*******************************************************************/
-        /*                                                                 */
-        /* Compute face flags.                                             */
-        /*                                                                 */
+        /********************************************************************
+         *
+         * Compute face flags.
+         */
         flags = FT_FACE_FLAG_SCALABLE   | /* scalable outlines */
                 FT_FACE_FLAG_HORIZONTAL | /* horizontal data   */
                 FT_FACE_FLAG_HINTER;      /* has native hinter */
@@ -989,10 +988,10 @@
 
         cffface->face_flags |= flags;
 
-        /*******************************************************************/
-        /*                                                                 */
-        /* Compute style flags.                                            */
-        /*                                                                 */
+        /********************************************************************
+         *
+         * Compute style flags.
+         */
         flags = 0;
 
         if ( dict->italic_angle )
@@ -1028,10 +1027,10 @@
       if ( dict->cid_registry != 0xFFFFU && pure_cff )
         cffface->face_flags |= FT_FACE_FLAG_CID_KEYED;
 
-      /*******************************************************************/
-      /*                                                                 */
-      /* Compute char maps.                                              */
-      /*                                                                 */
+      /********************************************************************
+       *
+       * Compute char maps.
+       */
 
       /* Try to synthesize a Unicode charmap if there is none available */
       /* already.  If an OpenType font contains a Unicode "cmap", we    */
@@ -1070,10 +1069,11 @@
 
         nn = (FT_UInt)cffface->num_charmaps;
 
-        error = FT_CMap_New( &CFF_CMAP_UNICODE_CLASS_REC_GET, NULL,
+        error = FT_CMap_New( &cff_cmap_unicode_class_rec, NULL,
                              &cmaprec, NULL );
         if ( error                                      &&
-             FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) )
+             FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) &&
+             FT_ERR_NEQ( error, Unimplemented_Feature ) )
           goto Exit;
         error = FT_Err_Ok;
 
@@ -1094,19 +1094,19 @@
           {
             cmaprec.encoding_id = TT_ADOBE_ID_STANDARD;
             cmaprec.encoding    = FT_ENCODING_ADOBE_STANDARD;
-            clazz               = &CFF_CMAP_ENCODING_CLASS_REC_GET;
+            clazz               = &cff_cmap_encoding_class_rec;
           }
           else if ( encoding->offset == 1 )
           {
             cmaprec.encoding_id = TT_ADOBE_ID_EXPERT;
             cmaprec.encoding    = FT_ENCODING_ADOBE_EXPERT;
-            clazz               = &CFF_CMAP_ENCODING_CLASS_REC_GET;
+            clazz               = &cff_cmap_encoding_class_rec;
           }
           else
           {
             cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM;
             cmaprec.encoding    = FT_ENCODING_ADOBE_CUSTOM;
-            clazz               = &CFF_CMAP_ENCODING_CLASS_REC_GET;
+            clazz               = &cff_cmap_encoding_class_rec;
           }
 
           error = FT_CMap_New( clazz, NULL, &cmaprec, NULL );
diff --git a/thirdparty/freetype/src/cff/cffobjs.h b/thirdparty/freetype/src/cff/cffobjs.h
index 616a25b3b5..03bc78a67f 100644
--- a/thirdparty/freetype/src/cff/cffobjs.h
+++ b/thirdparty/freetype/src/cff/cffobjs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffobjs.h                                                              */
-/*                                                                         */
-/*    OpenType objects manager (specification).                            */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffobjs.h
+ *
+ *   OpenType objects manager (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFOBJS_H_
@@ -51,10 +51,10 @@ FT_BEGIN_HEADER
   cff_slot_init( FT_GlyphSlot  slot );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Face functions                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Face functions
+   */
   FT_LOCAL( FT_Error )
   cff_face_init( FT_Stream      stream,
                  FT_Face        face,           /* CFF_Face */
@@ -66,10 +66,10 @@ FT_BEGIN_HEADER
   cff_face_done( FT_Face  face );               /* CFF_Face */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Driver functions                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Driver functions
+   */
   FT_LOCAL( FT_Error )
   cff_driver_init( FT_Module  module );         /* PS_Driver */
 
diff --git a/thirdparty/freetype/src/cff/cffparse.c b/thirdparty/freetype/src/cff/cffparse.c
index b9611cf548..fa806f1a90 100644
--- a/thirdparty/freetype/src/cff/cffparse.c
+++ b/thirdparty/freetype/src/cff/cffparse.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffparse.c                                                             */
-/*                                                                         */
-/*    CFF token stream parser (body)                                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffparse.c
+ *
+ *   CFF token stream parser (body)
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -22,20 +22,20 @@
 #include FT_INTERNAL_DEBUG_H
 #include FT_INTERNAL_CALC_H
 #include FT_INTERNAL_POSTSCRIPT_AUX_H
+#include FT_LIST_H
 
 #include "cfferrs.h"
-#include "cffpic.h"
 #include "cffload.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cffparse
+#define FT_COMPONENT  cffparse
 
 
   FT_LOCAL_DEF( FT_Error )
@@ -605,7 +605,6 @@
     FT_Vector*       offset = &dict->font_offset;
     FT_ULong*        upm    = &dict->units_per_em;
     FT_Byte**        data   = parser->stack;
-    FT_Error         error  = FT_ERR( Stack_Underflow );
 
 
     if ( parser->top >= parser->stack + 6 )
@@ -617,8 +616,6 @@
       int      i;
 
 
-      error = FT_Err_Ok;
-
       dict->has_font_matrix = TRUE;
 
       /* We expect a well-formed font matrix, this is, the matrix elements */
@@ -647,22 +644,11 @@
            ( max_scaling - min_scaling ) < 0 ||
            ( max_scaling - min_scaling ) > 9 )
       {
-        /* Return default matrix in case of unlikely values. */
-
         FT_TRACE1(( "cff_parse_font_matrix:"
                     " strange scaling values (minimum %d, maximum %d),\n"
                     "                      "
                     " using default matrix\n", min_scaling, max_scaling ));
-
-        matrix->xx = 0x10000L;
-        matrix->yx = 0;
-        matrix->xy = 0;
-        matrix->yy = 0x10000L;
-        offset->x  = 0;
-        offset->y  = 0;
-        *upm       = 1;
-
-        goto Exit;
+        goto Unlikely;
       }
 
       for ( i = 0; i < 6; i++ )
@@ -709,10 +695,31 @@
                   (double)matrix->yy / *upm / 65536,
                   (double)offset->x  / *upm / 65536,
                   (double)offset->y  / *upm / 65536 ));
+
+      if ( !FT_Matrix_Check( matrix ) )
+      {
+        FT_TRACE1(( "cff_parse_font_matrix:"
+                    " degenerate values, using default matrix\n" ));
+        goto Unlikely;
+      }
+
+      return FT_Err_Ok;
     }
+    else
+      return FT_THROW( Stack_Underflow );
 
-  Exit:
-    return error;
+  Unlikely:
+    /* Return default matrix in case of unlikely values. */
+
+    matrix->xx = 0x10000L;
+    matrix->yx = 0;
+    matrix->xy = 0;
+    matrix->yy = 0x10000L;
+    offset->x  = 0;
+    offset->y  = 0;
+    *upm       = 1;
+
+    return FT_Err_Ok;
   }
 
 
@@ -802,7 +809,7 @@
 
 #ifdef FT_DEBUG_LEVEL_TRACE
     /* beautify tracing message */
-    if ( ft_trace_levels[FT_COMPONENT] < 4 )
+    if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] < 4 )
       FT_TRACE1(( "Multiple Master CFFs not supported yet,"
                   " handling first master design only\n" ));
     else
@@ -1003,9 +1010,6 @@
           CFF_FIELD( code, name, id, cff_kind_bool )
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
-
 #undef  CFF_FIELD
 #undef  CFF_FIELD_DELTA
 
@@ -1118,182 +1122,16 @@
 #endif /* FT_DEBUG_LEVEL_TRACE */
 
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-
-  void
-  FT_Destroy_Class_cff_field_handlers( FT_Library          library,
-                                       CFF_Field_Handler*  clazz )
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+  static void
+  destruct_t2s_item( FT_Memory  memory,
+                     void*      data,
+                     void*      user )
   {
-    FT_Memory  memory = library->memory;
-
-
-    if ( clazz )
-      FT_FREE( clazz );
+    FT_UNUSED( user );
+    memory->free( memory, data );
   }
-
-
-  FT_Error
-  FT_Create_Class_cff_field_handlers( FT_Library           library,
-                                      CFF_Field_Handler**  output_class )
-  {
-    CFF_Field_Handler*  clazz  = NULL;
-    FT_Error            error;
-    FT_Memory           memory = library->memory;
-
-    int  i = 0;
-
-
-#undef CFF_FIELD
-#define CFF_FIELD( code, name, id, kind ) i++;
-#undef CFF_FIELD_DELTA
-#define CFF_FIELD_DELTA( code, name, max, id ) i++;
-#undef CFF_FIELD_CALLBACK
-#define CFF_FIELD_CALLBACK( code, name, id ) i++;
-#undef CFF_FIELD_BLEND
-#define CFF_FIELD_BLEND( code, id ) i++;
-
-#include "cfftoken.h"
-
-    i++; /* { 0, 0, 0, 0, 0, 0, 0 } */
-
-    if ( FT_ALLOC( clazz, sizeof ( CFF_Field_Handler ) * i ) )
-      return error;
-
-    i = 0;
-
-
-#ifndef FT_DEBUG_LEVEL_TRACE
-
-
-#undef CFF_FIELD_CALLBACK
-#define CFF_FIELD_CALLBACK( code_, name_, id_ )        \
-          clazz[i].kind         = cff_kind_callback;   \
-          clazz[i].code         = code_ | CFFCODE;     \
-          clazz[i].offset       = 0;                   \
-          clazz[i].size         = 0;                   \
-          clazz[i].reader       = cff_parse_ ## name_; \
-          clazz[i].array_max    = 0;                   \
-          clazz[i].count_offset = 0;                   \
-          i++;
-
-#undef  CFF_FIELD
-#define CFF_FIELD( code_, name_, id_, kind_ )               \
-          clazz[i].kind         = kind_;                    \
-          clazz[i].code         = code_ | CFFCODE;          \
-          clazz[i].offset       = FT_FIELD_OFFSET( name_ ); \
-          clazz[i].size         = FT_FIELD_SIZE( name_ );   \
-          clazz[i].reader       = 0;                        \
-          clazz[i].array_max    = 0;                        \
-          clazz[i].count_offset = 0;                        \
-          i++;                                              \
-
-#undef  CFF_FIELD_DELTA
-#define CFF_FIELD_DELTA( code_, name_, max_, id_ )                  \
-          clazz[i].kind         = cff_kind_delta;                   \
-          clazz[i].code         = code_ | CFFCODE;                  \
-          clazz[i].offset       = FT_FIELD_OFFSET( name_ );         \
-          clazz[i].size         = FT_FIELD_SIZE_DELTA( name_ );     \
-          clazz[i].reader       = 0;                                \
-          clazz[i].array_max    = max_;                             \
-          clazz[i].count_offset = FT_FIELD_OFFSET( num_ ## name_ ); \
-          i++;
-
-#undef  CFF_FIELD_BLEND
-#define CFF_FIELD_BLEND( code_, id_ )              \
-          clazz[i].kind         = cff_kind_blend;  \
-          clazz[i].code         = code_ | CFFCODE; \
-          clazz[i].offset       = 0;               \
-          clazz[i].size         = 0;               \
-          clazz[i].reader       = cff_parse_blend; \
-          clazz[i].array_max    = 0;               \
-          clazz[i].count_offset = 0;               \
-          i++;
-
-#include "cfftoken.h"
-
-    clazz[i].kind         = 0;
-    clazz[i].code         = 0;
-    clazz[i].offset       = 0;
-    clazz[i].size         = 0;
-    clazz[i].reader       = 0;
-    clazz[i].array_max    = 0;
-    clazz[i].count_offset = 0;
-
-
-#else /* FT_DEBUG_LEVEL_TRACE */
-
-
-#undef CFF_FIELD_CALLBACK
-#define CFF_FIELD_CALLBACK( code_, name_, id_ )        \
-          clazz[i].kind         = cff_kind_callback;   \
-          clazz[i].code         = code_ | CFFCODE;     \
-          clazz[i].offset       = 0;                   \
-          clazz[i].size         = 0;                   \
-          clazz[i].reader       = cff_parse_ ## name_; \
-          clazz[i].array_max    = 0;                   \
-          clazz[i].count_offset = 0;                   \
-          clazz[i].id           = id_;                 \
-          i++;
-
-#undef  CFF_FIELD
-#define CFF_FIELD( code_, name_, id_, kind_ )               \
-          clazz[i].kind         = kind_;                    \
-          clazz[i].code         = code_ | CFFCODE;          \
-          clazz[i].offset       = FT_FIELD_OFFSET( name_ ); \
-          clazz[i].size         = FT_FIELD_SIZE( name_ );   \
-          clazz[i].reader       = 0;                        \
-          clazz[i].array_max    = 0;                        \
-          clazz[i].count_offset = 0;                        \
-          clazz[i].id           = id_;                      \
-          i++;                                              \
-
-#undef  CFF_FIELD_DELTA
-#define CFF_FIELD_DELTA( code_, name_, max_, id_ )                  \
-          clazz[i].kind         = cff_kind_delta;                   \
-          clazz[i].code         = code_ | CFFCODE;                  \
-          clazz[i].offset       = FT_FIELD_OFFSET( name_ );         \
-          clazz[i].size         = FT_FIELD_SIZE_DELTA( name_ );     \
-          clazz[i].reader       = 0;                                \
-          clazz[i].array_max    = max_;                             \
-          clazz[i].count_offset = FT_FIELD_OFFSET( num_ ## name_ ); \
-          clazz[i].id           = id_;                              \
-          i++;
-
-#undef  CFF_FIELD_BLEND
-#define CFF_FIELD_BLEND( code_, id_ )              \
-          clazz[i].kind         = cff_kind_blend;  \
-          clazz[i].code         = code_ | CFFCODE; \
-          clazz[i].offset       = 0;               \
-          clazz[i].size         = 0;               \
-          clazz[i].reader       = cff_parse_blend; \
-          clazz[i].array_max    = 0;               \
-          clazz[i].count_offset = 0;               \
-          clazz[i].id           = id_;             \
-          i++;
-
-#include "cfftoken.h"
-
-    clazz[i].kind         = 0;
-    clazz[i].code         = 0;
-    clazz[i].offset       = 0;
-    clazz[i].size         = 0;
-    clazz[i].reader       = 0;
-    clazz[i].array_max    = 0;
-    clazz[i].count_offset = 0;
-    clazz[i].id           = 0;
-
-
-#endif /* FT_DEBUG_LEVEL_TRACE */
-
-
-    *output_class = clazz;
-
-    return FT_Err_Ok;
-  }
-
-
-#endif /* FT_CONFIG_OPTION_PIC */
+#endif /* CFF_CONFIG_OPTION_OLD_ENGINE */
 
 
   FT_LOCAL_DEF( FT_Error )
@@ -1301,17 +1139,21 @@
                   FT_Byte*    start,
                   FT_Byte*    limit )
   {
+    FT_Byte*  p     = start;
+    FT_Error  error = FT_Err_Ok;
+
 #ifdef CFF_CONFIG_OPTION_OLD_ENGINE
     PSAux_Service  psaux;
-#endif
 
-    FT_Byte*    p       = start;
-    FT_Error    error   = FT_Err_Ok;
     FT_Library  library = parser->library;
+    FT_Memory   memory  = library->memory;
 
-    FT_UNUSED( library );
+    FT_ListRec  t2s;
 
 
+    FT_ZERO( &t2s );
+#endif
+
     parser->top    = parser->stack;
     parser->start  = start;
     parser->limit  = limit;
@@ -1321,6 +1163,7 @@
     {
       FT_UInt  v = *p;
 
+
       /* Opcode 31 is legacy MM T2 operator, not a number.      */
       /* Opcode 255 is reserved and should not appear in fonts; */
       /* it is used internally for CFF2 blends.                 */
@@ -1369,8 +1212,9 @@
         FT_Byte*     charstring_base;
         FT_ULong     charstring_len;
 
-        FT_Fixed*  stack;
-        FT_Byte*   q;
+        FT_Fixed*    stack;
+        FT_ListNode  node;
+        FT_Byte*     q;
 
 
         charstring_base = ++p;
@@ -1405,17 +1249,29 @@
 
         error = psaux->cff_decoder_funcs->parse_charstrings_old(
                   &decoder, charstring_base, charstring_len, 1 );
+        if ( error )
+          goto Exit;
 
         /* Now copy the stack data in the temporary decoder object,    */
         /* converting it back to charstring number representations     */
         /* (this is ugly, I know).                                     */
-        /*                                                             */
-        /* We overwrite the original top DICT charstring under the     */
-        /* assumption that the charstring representation of the result */
-        /* of `cff_decoder_parse_charstrings' is shorter, which should */
-        /* be always true.                                             */
 
-        q     = charstring_base - 1;
+        node = (FT_ListNode)memory->alloc( memory,
+                                           sizeof ( FT_ListNodeRec ) );
+        if ( !node )
+          goto Out_Of_Memory_Error;
+
+        /* `5' is the conservative upper bound of required bytes per stack */
+        /* element.                                                        */
+        q = (FT_Byte*)memory->alloc( memory,
+                                     5 * ( decoder.top - decoder.stack ) );
+        if ( !q )
+          goto Out_Of_Memory_Error;
+
+        node->data = q;
+
+        FT_List_Add( &t2s, node );
+
         stack = decoder.stack;
 
         while ( stack < decoder.top )
@@ -1431,7 +1287,7 @@
 
           if ( *stack < 0 )
           {
-            num = (FT_ULong)-*stack;
+            num = (FT_ULong)NEG_LONG( *stack );
             neg = 1;
           }
           else
@@ -1523,7 +1379,7 @@
         }
         code = code | parser->object_code;
 
-        for ( field = CFF_FIELD_HANDLERS_GET; field->kind; field++ )
+        for ( field = cff_field_handlers; field->kind; field++ )
         {
           if ( field->code == (FT_Int)code )
           {
@@ -1672,11 +1528,20 @@
           parser->top = parser->stack;
       }
       p++;
-    }
+    } /* while ( p < limit ) */
 
   Exit:
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+    FT_List_Finalize( &t2s, destruct_t2s_item, memory, NULL );
+#endif
     return error;
 
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+  Out_Of_Memory_Error:
+    error = FT_THROW( Out_Of_Memory );
+    goto Exit;
+#endif
+
   Stack_Overflow:
     error = FT_THROW( Invalid_Argument );
     goto Exit;
diff --git a/thirdparty/freetype/src/cff/cffparse.h b/thirdparty/freetype/src/cff/cffparse.h
index 8a8caeca44..bac32f9449 100644
--- a/thirdparty/freetype/src/cff/cffparse.h
+++ b/thirdparty/freetype/src/cff/cffparse.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffparse.h                                                             */
-/*                                                                         */
-/*    CFF token stream parser (specification)                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffparse.h
+ *
+ *   CFF token stream parser (specification)
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFPARSE_H_
@@ -33,11 +33,11 @@ FT_BEGIN_HEADER
 #define CFF_MAX_STACK_DEPTH  96
 
   /*
-   *  There are plans to remove the `maxstack' operator in a forthcoming
-   *  revision of the CFF2 specification, increasing the (then static) stack
-   *  size to 513.  By making the default stack size equal to the maximum
-   *  stack size, the operator is essentially disabled, which has the
-   *  desired effect in FreeType.
+   * There are plans to remove the `maxstack' operator in a forthcoming
+   * revision of the CFF2 specification, increasing the (then static) stack
+   * size to 513.  By making the default stack size equal to the maximum
+   * stack size, the operator is essentially disabled, which has the
+   * desired effect in FreeType.
    */
 #define CFF2_MAX_STACK      513
 #define CFF2_DEFAULT_STACK  513
diff --git a/thirdparty/freetype/src/cff/cffpic.c b/thirdparty/freetype/src/cff/cffpic.c
deleted file mode 100644
index 08b74c7cf2..0000000000
--- a/thirdparty/freetype/src/cff/cffpic.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffpic.c                                                               */
-/*                                                                         */
-/*    The FreeType position independent code services for cff module.      */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "cffcmap.h"
-#include "cffpic.h"
-#include "cfferrs.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from cffdrivr.c */
-  FT_Error
-  FT_Create_Class_cff_services( FT_Library           library,
-                                FT_ServiceDescRec**  output_class );
-  void
-  FT_Destroy_Class_cff_services( FT_Library          library,
-                                 FT_ServiceDescRec*  clazz );
-  void
-  FT_Init_Class_cff_service_ps_info( FT_Library             library,
-                                     FT_Service_PsInfoRec*  clazz );
-  void
-  FT_Init_Class_cff_service_glyph_dict( FT_Library                library,
-                                        FT_Service_GlyphDictRec*  clazz );
-  void
-  FT_Init_Class_cff_service_ps_name( FT_Library                 library,
-                                     FT_Service_PsFontNameRec*  clazz );
-  void
-  FT_Init_Class_cff_service_get_cmap_info( FT_Library              library,
-                                           FT_Service_TTCMapsRec*  clazz );
-  void
-  FT_Init_Class_cff_service_cid_info( FT_Library          library,
-                                      FT_Service_CIDRec*  clazz );
-
-  /* forward declaration of PIC init functions from cffparse.c */
-  FT_Error
-  FT_Create_Class_cff_field_handlers( FT_Library           library,
-                                      CFF_Field_Handler**  output_class );
-  void
-  FT_Destroy_Class_cff_field_handlers( FT_Library          library,
-                                       CFF_Field_Handler*  clazz );
-
-
-  void
-  cff_driver_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->cff )
-    {
-      CffModulePIC*  container = (CffModulePIC*)pic_container->cff;
-
-
-      if ( container->cff_services )
-        FT_Destroy_Class_cff_services( library,
-                                       container->cff_services );
-      container->cff_services = NULL;
-      if ( container->cff_field_handlers )
-        FT_Destroy_Class_cff_field_handlers(
-          library, container->cff_field_handlers );
-      container->cff_field_handlers = NULL;
-      FT_FREE( container );
-      pic_container->cff = NULL;
-    }
-  }
-
-
-  FT_Error
-  cff_driver_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    CffModulePIC*      container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC ( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->cff = container;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    error = FT_Create_Class_cff_services( library,
-                                          &container->cff_services );
-    if ( error )
-      goto Exit;
-
-    error = FT_Create_Class_cff_field_handlers(
-              library, &container->cff_field_handlers );
-    if ( error )
-      goto Exit;
-
-    FT_Init_Class_cff_service_ps_info(
-      library, &container->cff_service_ps_info );
-    FT_Init_Class_cff_service_glyph_dict(
-      library, &container->cff_service_glyph_dict );
-    FT_Init_Class_cff_service_ps_name(
-      library, &container->cff_service_ps_name );
-    FT_Init_Class_cff_service_get_cmap_info(
-      library, &container->cff_service_get_cmap_info );
-    FT_Init_Class_cff_service_cid_info(
-      library, &container->cff_service_cid_info );
-    FT_Init_Class_cff_cmap_encoding_class_rec(
-      library, &container->cff_cmap_encoding_class_rec );
-    FT_Init_Class_cff_cmap_unicode_class_rec(
-      library, &container->cff_cmap_unicode_class_rec );
-
-  Exit:
-    if ( error )
-      cff_driver_class_pic_free( library );
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cffpic.h b/thirdparty/freetype/src/cff/cffpic.h
deleted file mode 100644
index 8ba4203a8d..0000000000
--- a/thirdparty/freetype/src/cff/cffpic.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffpic.h                                                               */
-/*                                                                         */
-/*    The FreeType position independent code services for cff module.      */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CFFPIC_H_
-#define CFFPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define CFF_SERVICE_PS_INFO_GET          cff_service_ps_info
-#define CFF_SERVICE_GLYPH_DICT_GET       cff_service_glyph_dict
-#define CFF_SERVICE_PS_NAME_GET          cff_service_ps_name
-#define CFF_SERVICE_GET_CMAP_INFO_GET    cff_service_get_cmap_info
-#define CFF_SERVICE_CID_INFO_GET         cff_service_cid_info
-#define CFF_SERVICE_PROPERTIES_GET       cff_service_properties
-#define CFF_SERVICES_GET                 cff_services
-#define CFF_SERVICE_MULTI_MASTERS_GET    cff_service_multi_masters
-#define CFF_SERVICE_METRICS_VAR_GET      cff_service_metrics_variations
-#define CFF_SERVICE_CFF_LOAD_GET         cff_service_cff_load
-#define CFF_CMAP_ENCODING_CLASS_REC_GET  cff_cmap_encoding_class_rec
-#define CFF_CMAP_UNICODE_CLASS_REC_GET   cff_cmap_unicode_class_rec
-#define CFF_FIELD_HANDLERS_GET           cff_field_handlers
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-#include FT_SERVICE_GLYPH_DICT_H
-#include "cffparse.h"
-#include FT_SERVICE_POSTSCRIPT_INFO_H
-#include FT_SERVICE_POSTSCRIPT_NAME_H
-#include FT_SERVICE_TT_CMAP_H
-#include FT_SERVICE_CID_H
-#include FT_SERVICE_PROPERTIES_H
-#include FT_SERVICE_MULTIPLE_MASTERS_H
-#include FT_SERVICE_METRICS_VARIATIONS_H
-
-
-FT_BEGIN_HEADER
-
-  typedef struct  CffModulePIC_
-  {
-    FT_ServiceDescRec*               cff_services;
-    CFF_Field_Handler*               cff_field_handlers;
-    FT_Service_PsInfoRec             cff_service_ps_info;
-    FT_Service_GlyphDictRec          cff_service_glyph_dict;
-    FT_Service_PsFontNameRec         cff_service_ps_name;
-    FT_Service_TTCMapsRec            cff_service_get_cmap_info;
-    FT_Service_CIDRec                cff_service_cid_info;
-    FT_Service_PropertiesRec         cff_service_properties;
-    FT_Service_MultiMastersRec       cff_service_multi_masters;
-    FT_Service_MetricsVariationsRec  cff_service_metrics_variations;
-    FT_Service_CFFLoadRec            cff_service_cff_load;
-    FT_CMap_ClassRec                 cff_cmap_encoding_class_rec;
-    FT_CMap_ClassRec                 cff_cmap_unicode_class_rec;
-
-  } CffModulePIC;
-
-
-#define GET_PIC( lib )                                    \
-          ( (CffModulePIC*)( (lib)->pic_container.cff ) )
-
-#define CFF_SERVICE_PS_INFO_GET                       \
-          ( GET_PIC( library )->cff_service_ps_info )
-#define CFF_SERVICE_GLYPH_DICT_GET                       \
-          ( GET_PIC( library )->cff_service_glyph_dict )
-#define CFF_SERVICE_PS_NAME_GET                       \
-          ( GET_PIC( library )->cff_service_ps_name )
-#define CFF_SERVICE_GET_CMAP_INFO_GET                       \
-          ( GET_PIC( library )->cff_service_get_cmap_info )
-#define CFF_SERVICE_CID_INFO_GET                       \
-          ( GET_PIC( library )->cff_service_cid_info )
-#define CFF_SERVICE_PROPERTIES_GET                       \
-          ( GET_PIC( library )->cff_service_properties )
-#define CFF_SERVICES_GET                       \
-          ( GET_PIC( library )->cff_services )
-#define CFF_SERVICE_MULTI_MASTERS_GET                       \
-          ( GET_PIC( library )->cff_service_multi_masters )
-#define CFF_SERVICE_METRICS_VAR_GET                              \
-          ( GET_PIC( library )->cff_service_metrics_variations )
-#define CFF_SERVICE_CFF_LOAD_GET                       \
-          ( GET_PIC( library )->cff_service_cff_load )
-#define CFF_CMAP_ENCODING_CLASS_REC_GET                       \
-          ( GET_PIC( library )->cff_cmap_encoding_class_rec )
-#define CFF_CMAP_UNICODE_CLASS_REC_GET                       \
-          ( GET_PIC( library )->cff_cmap_unicode_class_rec )
-#define CFF_FIELD_HANDLERS_GET                       \
-          ( GET_PIC( library )->cff_field_handlers )
-
-  /* see cffpic.c for the implementation */
-  void
-  cff_driver_class_pic_free( FT_Library  library );
-
-  FT_Error
-  cff_driver_class_pic_init( FT_Library  library );
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-#endif /* CFFPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/cfftoken.h b/thirdparty/freetype/src/cff/cfftoken.h
index fec1ca20bd..063a7b3be0 100644
--- a/thirdparty/freetype/src/cff/cfftoken.h
+++ b/thirdparty/freetype/src/cff/cfftoken.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cfftoken.h                                                             */
-/*                                                                         */
-/*    CFF token definitions (specification only).                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cfftoken.h
+ *
+ *   CFF token definitions (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #undef  FT_STRUCTURE
diff --git a/thirdparty/freetype/src/cff/cfftypes.h b/thirdparty/freetype/src/cff/cfftypes.h
deleted file mode 100644
index 74f569f08b..0000000000
--- a/thirdparty/freetype/src/cff/cfftypes.h
+++ /dev/null
@@ -1,405 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cfftypes.h                                                             */
-/*                                                                         */
-/*    Basic OpenType/CFF type definitions and interface (specification     */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 1996-2017 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef CFFTYPES_H_
-#define CFFTYPES_H_
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_TYPE1_TABLES_H
-#include FT_INTERNAL_SERVICE_H
-#include FT_SERVICE_POSTSCRIPT_CMAPS_H
-#include FT_INTERNAL_POSTSCRIPT_HINTS_H
-
-
-FT_BEGIN_HEADER
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CFF_IndexRec                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A structure used to model a CFF Index table.                       */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    stream      :: The source input stream.                            */
-  /*                                                                       */
-  /*    start       :: The position of the first index byte in the         */
-  /*                   input stream.                                       */
-  /*                                                                       */
-  /*    count       :: The number of elements in the index.                */
-  /*                                                                       */
-  /*    off_size    :: The size in bytes of object offsets in index.       */
-  /*                                                                       */
-  /*    data_offset :: The position of first data byte in the index's      */
-  /*                   bytes.                                              */
-  /*                                                                       */
-  /*    data_size   :: The size of the data table in this index.           */
-  /*                                                                       */
-  /*    offsets     :: A table of element offsets in the index.  Must be   */
-  /*                   loaded explicitly.                                  */
-  /*                                                                       */
-  /*    bytes       :: If the index is loaded in memory, its bytes.        */
-  /*                                                                       */
-  typedef struct  CFF_IndexRec_
-  {
-    FT_Stream  stream;
-    FT_ULong   start;
-    FT_UInt    hdr_size;
-    FT_UInt    count;
-    FT_Byte    off_size;
-    FT_ULong   data_offset;
-    FT_ULong   data_size;
-
-    FT_ULong*  offsets;
-    FT_Byte*   bytes;
-
-  } CFF_IndexRec, *CFF_Index;
-
-
-  typedef struct  CFF_EncodingRec_
-  {
-    FT_UInt     format;
-    FT_ULong    offset;
-
-    FT_UInt     count;
-    FT_UShort   sids [256];  /* avoid dynamic allocations */
-    FT_UShort   codes[256];
-
-  } CFF_EncodingRec, *CFF_Encoding;
-
-
-  typedef struct  CFF_CharsetRec_
-  {
-
-    FT_UInt     format;
-    FT_ULong    offset;
-
-    FT_UShort*  sids;
-    FT_UShort*  cids;       /* the inverse mapping of `sids'; only needed */
-                            /* for CID-keyed fonts                        */
-    FT_UInt     max_cid;
-    FT_UInt     num_glyphs;
-
-  } CFF_CharsetRec, *CFF_Charset;
-
-
-  /* cf. similar fields in file `ttgxvar.h' from the `truetype' module */
-
-  typedef struct  CFF_VarData_
-  {
-#if 0
-    FT_UInt  itemCount;       /* not used; always zero */
-    FT_UInt  shortDeltaCount; /* not used; always zero */
-#endif
-
-    FT_UInt   regionIdxCount; /* number of region indexes           */
-    FT_UInt*  regionIndices;  /* array of `regionIdxCount' indices; */
-                              /* these index `varRegionList'        */
-  } CFF_VarData;
-
-
-  /* contribution of one axis to a region */
-  typedef struct  CFF_AxisCoords_
-  {
-    FT_Fixed  startCoord;
-    FT_Fixed  peakCoord;      /* zero peak means no effect (factor = 1) */
-    FT_Fixed  endCoord;
-
-  } CFF_AxisCoords;
-
-
-  typedef struct  CFF_VarRegion_
-  {
-    CFF_AxisCoords*  axisList;      /* array of axisCount records */
-
-  } CFF_VarRegion;
-
-
-  typedef struct  CFF_VStoreRec_
-  {
-    FT_UInt         dataCount;
-    CFF_VarData*    varData;        /* array of dataCount records      */
-                                    /* vsindex indexes this array      */
-    FT_UShort       axisCount;
-    FT_UInt         regionCount;    /* total number of regions defined */
-    CFF_VarRegion*  varRegionList;
-
-  } CFF_VStoreRec, *CFF_VStore;
-
-
-  /* forward reference */
-  typedef struct CFF_FontRec_*  CFF_Font;
-
-
-  /* This object manages one cached blend vector.                  */
-  /*                                                               */
-  /* There is a BlendRec for Private DICT parsing in each subfont  */
-  /* and a BlendRec for charstrings in CF2_Font instance data.     */
-  /* A cached BV may be used across DICTs or Charstrings if inputs */
-  /* have not changed.                                             */
-  /*                                                               */
-  /* `usedBV' is reset at the start of each parse or charstring.   */
-  /* vsindex cannot be changed after a BV is used.                 */
-  /*                                                               */
-  /* Note: NDV is long (32/64 bit), while BV is 16.16 (FT_Int32).  */
-  typedef struct  CFF_BlendRec_
-  {
-    FT_Bool    builtBV;        /* blendV has been built           */
-    FT_Bool    usedBV;         /* blendV has been used            */
-    CFF_Font   font;           /* top level font struct           */
-    FT_UInt    lastVsindex;    /* last vsindex used               */
-    FT_UInt    lenNDV;         /* normDV length (aka numAxes)     */
-    FT_Fixed*  lastNDV;        /* last NDV used                   */
-    FT_UInt    lenBV;          /* BlendV length (aka numMasters)  */
-    FT_Int32*  BV;             /* current blendV (per DICT/glyph) */
-
-  } CFF_BlendRec, *CFF_Blend;
-
-
-  typedef struct  CFF_FontRecDictRec_
-  {
-    FT_UInt    version;
-    FT_UInt    notice;
-    FT_UInt    copyright;
-    FT_UInt    full_name;
-    FT_UInt    family_name;
-    FT_UInt    weight;
-    FT_Bool    is_fixed_pitch;
-    FT_Fixed   italic_angle;
-    FT_Fixed   underline_position;
-    FT_Fixed   underline_thickness;
-    FT_Int     paint_type;
-    FT_Int     charstring_type;
-    FT_Matrix  font_matrix;
-    FT_Bool    has_font_matrix;
-    FT_ULong   units_per_em;  /* temporarily used as scaling value also */
-    FT_Vector  font_offset;
-    FT_ULong   unique_id;
-    FT_BBox    font_bbox;
-    FT_Pos     stroke_width;
-    FT_ULong   charset_offset;
-    FT_ULong   encoding_offset;
-    FT_ULong   charstrings_offset;
-    FT_ULong   private_offset;
-    FT_ULong   private_size;
-    FT_Long    synthetic_base;
-    FT_UInt    embedded_postscript;
-
-    /* these should only be used for the top-level font dictionary */
-    FT_UInt    cid_registry;
-    FT_UInt    cid_ordering;
-    FT_Long    cid_supplement;
-
-    FT_Long    cid_font_version;
-    FT_Long    cid_font_revision;
-    FT_Long    cid_font_type;
-    FT_ULong   cid_count;
-    FT_ULong   cid_uid_base;
-    FT_ULong   cid_fd_array_offset;
-    FT_ULong   cid_fd_select_offset;
-    FT_UInt    cid_font_name;
-
-    /* the next fields come from the data of the deprecated          */
-    /* `MultipleMaster' operator; they are needed to parse the (also */
-    /* deprecated) `blend' operator in Type 2 charstrings            */
-    FT_UShort  num_designs;
-    FT_UShort  num_axes;
-
-    /* fields for CFF2 */
-    FT_ULong   vstore_offset;
-    FT_UInt    maxstack;
-
-  } CFF_FontRecDictRec, *CFF_FontRecDict;
-
-
-  /* forward reference */
-  typedef struct CFF_SubFontRec_*  CFF_SubFont;
-
-
-  typedef struct  CFF_PrivateRec_
-  {
-    FT_Byte   num_blue_values;
-    FT_Byte   num_other_blues;
-    FT_Byte   num_family_blues;
-    FT_Byte   num_family_other_blues;
-
-    FT_Pos    blue_values[14];
-    FT_Pos    other_blues[10];
-    FT_Pos    family_blues[14];
-    FT_Pos    family_other_blues[10];
-
-    FT_Fixed  blue_scale;
-    FT_Pos    blue_shift;
-    FT_Pos    blue_fuzz;
-    FT_Pos    standard_width;
-    FT_Pos    standard_height;
-
-    FT_Byte   num_snap_widths;
-    FT_Byte   num_snap_heights;
-    FT_Pos    snap_widths[13];
-    FT_Pos    snap_heights[13];
-    FT_Bool   force_bold;
-    FT_Fixed  force_bold_threshold;
-    FT_Int    lenIV;
-    FT_Int    language_group;
-    FT_Fixed  expansion_factor;
-    FT_Long   initial_random_seed;
-    FT_ULong  local_subrs_offset;
-    FT_Pos    default_width;
-    FT_Pos    nominal_width;
-
-    /* fields for CFF2 */
-    FT_UInt      vsindex;
-    CFF_SubFont  subfont;
-
-  } CFF_PrivateRec, *CFF_Private;
-
-
-  typedef struct  CFF_FDSelectRec_
-  {
-    FT_Byte   format;
-    FT_UInt   range_count;
-
-    /* that's the table, taken from the file `as is' */
-    FT_Byte*  data;
-    FT_UInt   data_size;
-
-    /* small cache for format 3 only */
-    FT_UInt   cache_first;
-    FT_UInt   cache_count;
-    FT_Byte   cache_fd;
-
-  } CFF_FDSelectRec, *CFF_FDSelect;
-
-
-  /* A SubFont packs a font dict and a private dict together.  They are */
-  /* needed to support CID-keyed CFF fonts.                             */
-  typedef struct  CFF_SubFontRec_
-  {
-    CFF_FontRecDictRec  font_dict;
-    CFF_PrivateRec      private_dict;
-
-    /* fields for CFF2 */
-    CFF_BlendRec  blend;      /* current blend vector       */
-    FT_UInt       lenNDV;     /* current length NDV or zero */
-    FT_Fixed*     NDV;        /* ptr to current NDV or NULL */
-
-    /* `blend_stack' is a writable buffer to hold blend results.          */
-    /* This buffer is to the side of the normal cff parser stack;         */
-    /* `cff_parse_blend' and `cff_blend_doBlend' push blend results here. */
-    /* The normal stack then points to these values instead of the DICT   */
-    /* because all other operators in Private DICT clear the stack.       */
-    /* `blend_stack' could be cleared at each operator other than blend.  */
-    /* Blended values are stored as 5-byte fixed point values.            */
-
-    FT_Byte*  blend_stack;    /* base of stack allocation     */
-    FT_Byte*  blend_top;      /* first empty slot             */
-    FT_UInt   blend_used;     /* number of bytes in use       */
-    FT_UInt   blend_alloc;    /* number of bytes allocated    */
-
-    CFF_IndexRec  local_subrs_index;
-    FT_Byte**     local_subrs; /* array of pointers           */
-                               /* into Local Subrs INDEX data */
-
-    FT_UInt32  random;
-
-  } CFF_SubFontRec;
-
-
-#define CFF_MAX_CID_FONTS  256
-
-
-  typedef struct  CFF_FontRec_
-  {
-    FT_Library       library;
-    FT_Stream        stream;
-    FT_Memory        memory;        /* TODO: take this from stream->memory? */
-    FT_ULong         base_offset;   /* offset to start of CFF */
-    FT_UInt          num_faces;
-    FT_UInt          num_glyphs;
-
-    FT_Byte          version_major;
-    FT_Byte          version_minor;
-    FT_Byte          header_size;
-
-    FT_UInt          top_dict_length;   /* cff2 only */
-
-    FT_Bool          cff2;
-
-    CFF_IndexRec     name_index;
-    CFF_IndexRec     top_dict_index;
-    CFF_IndexRec     global_subrs_index;
-
-    CFF_EncodingRec  encoding;
-    CFF_CharsetRec   charset;
-
-    CFF_IndexRec     charstrings_index;
-    CFF_IndexRec     font_dict_index;
-    CFF_IndexRec     private_index;
-    CFF_IndexRec     local_subrs_index;
-
-    FT_String*       font_name;
-
-    /* array of pointers into Global Subrs INDEX data */
-    FT_Byte**        global_subrs;
-
-    /* array of pointers into String INDEX data stored at string_pool */
-    FT_UInt          num_strings;
-    FT_Byte**        strings;
-    FT_Byte*         string_pool;
-    FT_ULong         string_pool_size;
-
-    CFF_SubFontRec   top_font;
-    FT_UInt          num_subfonts;
-    CFF_SubFont      subfonts[CFF_MAX_CID_FONTS];
-
-    CFF_FDSelectRec  fd_select;
-
-    /* interface to PostScript hinter */
-    PSHinter_Service  pshinter;
-
-    /* interface to Postscript Names service */
-    FT_Service_PsCMaps  psnames;
-
-    /* since version 2.3.0 */
-    PS_FontInfoRec*  font_info;   /* font info dictionary */
-
-    /* since version 2.3.6 */
-    FT_String*       registry;
-    FT_String*       ordering;
-
-    /* since version 2.4.12 */
-    FT_Generic       cf2_instance;
-
-    /* since version 2.7.1 */
-    CFF_VStoreRec    vstore;        /* parsed vstore structure */
-
-  } CFF_FontRec;
-
-
-FT_END_HEADER
-
-#endif /* CFFTYPES_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/cff/module.mk b/thirdparty/freetype/src/cff/module.mk
index 8013d5dcab..8c610959d3 100644
--- a/thirdparty/freetype/src/cff/module.mk
+++ b/thirdparty/freetype/src/cff/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/cff/rules.mk b/thirdparty/freetype/src/cff/rules.mk
index bce672927e..6e2dc476ef 100644
--- a/thirdparty/freetype/src/cff/rules.mk
+++ b/thirdparty/freetype/src/cff/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -31,8 +31,7 @@ CFF_DRV_SRC := $(CFF_DIR)/cffcmap.c  \
                $(CFF_DIR)/cffgload.c \
                $(CFF_DIR)/cffload.c  \
                $(CFF_DIR)/cffobjs.c  \
-               $(CFF_DIR)/cffparse.c \
-               $(CFF_DIR)/cffpic.c
+               $(CFF_DIR)/cffparse.c
 
 
 # CFF driver headers
diff --git a/thirdparty/freetype/src/cid/ciderrs.h b/thirdparty/freetype/src/cid/ciderrs.h
index a5a86e3fc6..be80bed3be 100644
--- a/thirdparty/freetype/src/cid/ciderrs.h
+++ b/thirdparty/freetype/src/cid/ciderrs.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ciderrs.h                                                              */
-/*                                                                         */
-/*    CID error codes (specification only).                                */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the CID error enumeration constants.      */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ciderrs.h
+ *
+ *   CID error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the CID error enumeration constants.
+   *
+   */
 
 #ifndef CIDERRS_H_
 #define CIDERRS_H_
diff --git a/thirdparty/freetype/src/cid/cidgload.c b/thirdparty/freetype/src/cid/cidgload.c
index d14f9a2cc9..f59f2880f0 100644
--- a/thirdparty/freetype/src/cid/cidgload.c
+++ b/thirdparty/freetype/src/cid/cidgload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidgload.c                                                             */
-/*                                                                         */
-/*    CID-keyed Type1 Glyph Loader (body).                                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidgload.c
+ *
+ *   CID-keyed Type1 Glyph Loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -31,14 +31,14 @@
 #include "ciderrs.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cidgload
+#define FT_COMPONENT  cidgload
 
 
   FT_CALLBACK_DEF( FT_Error )
@@ -393,8 +393,7 @@
     must_finish_decoder = TRUE;
 
     /* set up the decoder */
-    decoder.builder.no_recurse = FT_BOOL(
-      ( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ) );
+    decoder.builder.no_recurse = FT_BOOL( load_flags & FT_LOAD_NO_RECURSE );
 
     error = cid_load_glyph( &decoder, glyph_index );
     if ( error )
diff --git a/thirdparty/freetype/src/cid/cidgload.h b/thirdparty/freetype/src/cid/cidgload.h
index 4811852ae4..37eba7ca7b 100644
--- a/thirdparty/freetype/src/cid/cidgload.h
+++ b/thirdparty/freetype/src/cid/cidgload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidgload.h                                                             */
-/*                                                                         */
-/*    OpenType Glyph Loader (specification).                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidgload.h
+ *
+ *   OpenType Glyph Loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CIDGLOAD_H_
diff --git a/thirdparty/freetype/src/cid/cidload.c b/thirdparty/freetype/src/cid/cidload.c
index 27cd09b3c3..fce3e37da7 100644
--- a/thirdparty/freetype/src/cid/cidload.c
+++ b/thirdparty/freetype/src/cid/cidload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidload.c                                                              */
-/*                                                                         */
-/*    CID-keyed Type1 font loader (body).                                  */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidload.c
+ *
+ *   CID-keyed Type1 font loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -21,20 +21,21 @@
 #include FT_CONFIG_CONFIG_H
 #include FT_MULTIPLE_MASTERS_H
 #include FT_INTERNAL_TYPE1_TYPES_H
+#include FT_INTERNAL_POSTSCRIPT_AUX_H
 
 #include "cidload.h"
 
 #include "ciderrs.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cidload
+#define FT_COMPONENT  cidload
 
 
   /* read a single offset */
@@ -81,6 +82,8 @@
     /* if the keyword has a dedicated callback, call it */
     if ( keyword->type == T1_FIELD_TYPE_CALLBACK )
     {
+      FT_TRACE4(( "  %s", keyword->ident ));
+
       keyword->reader( (FT_Face)face, parser );
       error = parser->root.error;
       goto Exit;
@@ -131,6 +134,8 @@
       }
     }
 
+    FT_TRACE4(( "  %s", keyword->ident ));
+
     dummy_object = object;
 
     /* now, load the keyword data in the object's field(s) */
@@ -141,12 +146,15 @@
     else
       error = cid_parser_load_field( &loader->parser,
                                      keyword, &dummy_object );
+
+    FT_TRACE4(( "\n" ));
+
   Exit:
     return error;
   }
 
 
-  FT_CALLBACK_DEF( FT_Error )
+  FT_CALLBACK_DEF( void )
   cid_parse_font_matrix( CID_Face     face,
                          CID_Parser*  parser )
   {
@@ -171,14 +179,25 @@
       result = cid_parser_to_fixed_array( parser, 6, temp, 3 );
 
       if ( result < 6 )
-        return FT_THROW( Invalid_File_Format );
+      {
+        FT_ERROR(( "cid_parse_font_matrix: not enough matrix elements\n" ));
+        goto Exit;
+      }
+
+      FT_TRACE4(( " [%f %f %f %f %f %f]\n",
+                  (double)temp[0] / 65536 / 1000,
+                  (double)temp[1] / 65536 / 1000,
+                  (double)temp[2] / 65536 / 1000,
+                  (double)temp[3] / 65536 / 1000,
+                  (double)temp[4] / 65536 / 1000,
+                  (double)temp[5] / 65536 / 1000 ));
 
       temp_scale = FT_ABS( temp[3] );
 
       if ( temp_scale == 0 )
       {
         FT_ERROR(( "cid_parse_font_matrix: invalid font matrix\n" ));
-        return FT_THROW( Invalid_File_Format );
+        goto Exit;
       }
 
       /* atypical case */
@@ -200,16 +219,24 @@
       matrix->xy = temp[2];
       matrix->yy = temp[3];
 
+      if ( !FT_Matrix_Check( matrix ) )
+      {
+        FT_ERROR(( "t1_parse_font_matrix: invalid font matrix\n" ));
+        parser->root.error = FT_THROW( Invalid_File_Format );
+        goto Exit;
+      }
+
       /* note that the font offsets are expressed in integer font units */
       offset->x  = temp[4] >> 16;
       offset->y  = temp[5] >> 16;
     }
 
-    return FT_Err_Ok;
+  Exit:
+    return;
   }
 
 
-  FT_CALLBACK_DEF( FT_Error )
+  FT_CALLBACK_DEF( void )
   parse_fd_array( CID_Face     face,
                   CID_Parser*  parser )
   {
@@ -224,10 +251,11 @@
     if ( num_dicts < 0 )
     {
       FT_ERROR(( "parse_fd_array: invalid number of dictionaries\n" ));
-      error = FT_THROW( Invalid_File_Format );
       goto Exit;
     }
 
+    FT_TRACE4(( " %d\n", num_dicts ));
+
     /*
      * A single entry in the FDArray must (at least) contain the following
      * structure elements.
@@ -263,27 +291,31 @@
 
       cid->num_dicts = num_dicts;
 
-      /* don't forget to set a few defaults */
+      /* set some default values (the same as for Type 1 fonts) */
       for ( n = 0; n < cid->num_dicts; n++ )
       {
         CID_FaceDict  dict = cid->font_dicts + n;
 
 
-        /* default value for lenIV */
-        dict->private_dict.lenIV = 4;
+        dict->private_dict.blue_shift       = 7;
+        dict->private_dict.blue_fuzz        = 1;
+        dict->private_dict.lenIV            = 4;
+        dict->private_dict.expansion_factor = (FT_Fixed)( 0.06 * 0x10000L );
+        dict->private_dict.blue_scale       = (FT_Fixed)(
+                                                0.039625 * 0x10000L * 1000 );
       }
     }
 
   Exit:
-    return error;
+    return;
   }
 
 
-  /* by mistake, `expansion_factor' appears both in PS_PrivateRec */
+  /* By mistake, `expansion_factor' appears both in PS_PrivateRec */
   /* and CID_FaceDictRec (both are public header files and can't  */
-  /* changed); we simply copy the value                           */
+  /* changed).  We simply copy the value.                         */
 
-  FT_CALLBACK_DEF( FT_Error )
+  FT_CALLBACK_DEF( void )
   parse_expansion_factor( CID_Face     face,
                           CID_Parser*  parser )
   {
@@ -296,9 +328,43 @@
 
       dict->expansion_factor              = cid_parser_to_fixed( parser, 0 );
       dict->private_dict.expansion_factor = dict->expansion_factor;
+
+      FT_TRACE4(( "%d\n", dict->expansion_factor ));
+    }
+
+    return;
+  }
+
+
+  /* By mistake, `CID_FaceDictRec' doesn't contain a field for the */
+  /* `FontName' keyword.  FreeType doesn't need it, but it is nice */
+  /* to catch it for producing better trace output.                */
+
+  FT_CALLBACK_DEF( void )
+  parse_font_name( CID_Face     face,
+                   CID_Parser*  parser )
+  {
+#ifdef FT_DEBUG_LEVEL_TRACE
+    if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
+    {
+      T1_TokenRec  token;
+      FT_UInt      len;
+
+
+      cid_parser_to_token( parser, &token );
+
+      len = (FT_UInt)( token.limit - token.start );
+      if ( len )
+        FT_TRACE4(( " %.*s\n", len, token.start ));
+      else
+        FT_TRACE4(( " <no value>\n" ));
     }
+#else
+    FT_UNUSED( face );
+    FT_UNUSED( parser );
+#endif
 
-    return FT_Err_Ok;
+    return;
   }
 
 
@@ -311,6 +377,7 @@
     T1_FIELD_CALLBACK( "FDArray",         parse_fd_array, 0 )
     T1_FIELD_CALLBACK( "FontMatrix",      cid_parse_font_matrix, 0 )
     T1_FIELD_CALLBACK( "ExpansionFactor", parse_expansion_factor, 0 )
+    T1_FIELD_CALLBACK( "FontName",        parse_font_name, 0 )
 
     { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 }
   };
@@ -356,7 +423,16 @@
             /* if /FDArray was found, then cid->num_dicts is > 0, and */
             /* we can start increasing parser->num_dict               */
             if ( face->cid.num_dicts > 0 )
+            {
               parser->num_dict++;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+              FT_TRACE4(( " FontDict %d", parser->num_dict ));
+              if ( parser->num_dict > face->cid.num_dicts )
+                FT_TRACE4(( " (ignored)" ));
+              FT_TRACE4(( "\n" ));
+#endif
+            }
           }
         }
 
@@ -757,7 +833,7 @@
 
     if ( cid->fd_bytes < 0 || cid->gd_bytes < 1 )
     {
-      FT_ERROR(( "cid_parse_dict:"
+      FT_ERROR(( "cid_face_open:"
                  " Invalid `FDBytes' or `GDBytes' value\n" ));
       error = FT_THROW( Invalid_File_Format );
       goto Exit;
@@ -766,7 +842,7 @@
     /* allow at most 32bit offsets */
     if ( cid->fd_bytes > 4 || cid->gd_bytes > 4 )
     {
-      FT_ERROR(( "cid_parse_dict:"
+      FT_ERROR(( "cid_face_open:"
                  " Values of `FDBytes' or `GDBytes' larger than 4\n"
                  "               "
                  " are not supported\n" ));
@@ -782,17 +858,36 @@
       CID_FaceDict  dict = cid->font_dicts + n;
 
 
+      /* the upper limits are ad-hoc values */
+      if ( dict->private_dict.blue_shift > 1000 ||
+           dict->private_dict.blue_shift < 0    )
+      {
+        FT_TRACE2(( "cid_face_open:"
+                    " setting unlikely BlueShift value %d to default (7)\n",
+                    dict->private_dict.blue_shift ));
+        dict->private_dict.blue_shift = 7;
+      }
+
+      if ( dict->private_dict.blue_fuzz > 1000 ||
+           dict->private_dict.blue_fuzz < 0    )
+      {
+        FT_TRACE2(( "cid_face_open:"
+                    " setting unlikely BlueFuzz value %d to default (1)\n",
+                    dict->private_dict.blue_fuzz ));
+        dict->private_dict.blue_fuzz = 1;
+      }
+
       if ( dict->sd_bytes < 0                        ||
            ( dict->num_subrs && dict->sd_bytes < 1 ) )
       {
-        FT_ERROR(( "cid_parse_dict: Invalid `SDBytes' value\n" ));
+        FT_ERROR(( "cid_face_open: Invalid `SDBytes' value\n" ));
         error = FT_THROW( Invalid_File_Format );
         goto Exit;
       }
 
       if ( dict->sd_bytes > 4 )
       {
-        FT_ERROR(( "cid_parse_dict:"
+        FT_ERROR(( "cid_face_open:"
                    " Values of `SDBytes' larger than 4"
                    " are not supported\n" ));
         error = FT_THROW( Invalid_File_Format );
@@ -801,7 +896,7 @@
 
       if ( dict->subrmap_offset > binary_length )
       {
-        FT_ERROR(( "cid_parse_dict: Invalid `SubrMapOffset' value\n" ));
+        FT_ERROR(( "cid_face_open: Invalid `SubrMapOffset' value\n" ));
         error = FT_THROW( Invalid_File_Format );
         goto Exit;
       }
@@ -812,7 +907,7 @@
              dict->num_subrs > ( binary_length - dict->subrmap_offset ) /
                                  (FT_UInt)dict->sd_bytes                 ) )
       {
-        FT_ERROR(( "cid_parse_dict: Invalid `SubrCount' value\n" ));
+        FT_ERROR(( "cid_face_open: Invalid `SubrCount' value\n" ));
         error = FT_THROW( Invalid_File_Format );
         goto Exit;
       }
@@ -820,7 +915,7 @@
 
     if ( cid->cidmap_offset > binary_length )
     {
-      FT_ERROR(( "cid_parse_dict: Invalid `CIDMapOffset' value\n" ));
+      FT_ERROR(( "cid_face_open: Invalid `CIDMapOffset' value\n" ));
       error = FT_THROW( Invalid_File_Format );
       goto Exit;
     }
@@ -829,7 +924,7 @@
          cid->cid_count >
            ( binary_length - cid->cidmap_offset ) / entry_len )
     {
-      FT_ERROR(( "cid_parse_dict: Invalid `CIDCount' value\n" ));
+      FT_ERROR(( "cid_face_open: Invalid `CIDCount' value\n" ));
       error = FT_THROW( Invalid_File_Format );
       goto Exit;
     }
diff --git a/thirdparty/freetype/src/cid/cidload.h b/thirdparty/freetype/src/cid/cidload.h
index 3f8bd08620..fb9d46216d 100644
--- a/thirdparty/freetype/src/cid/cidload.h
+++ b/thirdparty/freetype/src/cid/cidload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidload.h                                                              */
-/*                                                                         */
-/*    CID-keyed Type1 font loader (specification).                         */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidload.h
+ *
+ *   CID-keyed Type1 font loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CIDLOAD_H_
diff --git a/thirdparty/freetype/src/cid/cidobjs.c b/thirdparty/freetype/src/cid/cidobjs.c
index 77afe1c875..4e9728719b 100644
--- a/thirdparty/freetype/src/cid/cidobjs.c
+++ b/thirdparty/freetype/src/cid/cidobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidobjs.c                                                              */
-/*                                                                         */
-/*    CID objects manager (body).                                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidobjs.c
+ *
+ *   CID objects manager (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -31,21 +31,21 @@
 #include "ciderrs.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cidobjs
+#define FT_COMPONENT  cidobjs
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            SLOT  FUNCTIONS                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                           SLOT  FUNCTIONS
+   *
+   */
 
   FT_LOCAL_DEF( void )
   cid_slot_done( FT_GlyphSlot  slot )
@@ -85,11 +85,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                           SIZE  FUNCTIONS                             */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                          SIZE  FUNCTIONS
+   *
+   */
 
 
   static PSH_Globals_Funcs
@@ -174,23 +174,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                           FACE  FUNCTIONS                             */
-  /*                                                                       */
-  /*************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cid_face_done                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a given face object.                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A pointer to the face object to destroy.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                          FACE  FUNCTIONS
+   *
+   */
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   cid_face_done
+   *
+   * @Description:
+   *   Finalizes a given face object.
+   *
+   * @Input:
+   *   face ::
+   *     A pointer to the face object to destroy.
+   */
   FT_LOCAL_DEF( void )
   cid_face_done( FT_Face  cidface )         /* CID_Face */
   {
@@ -252,29 +253,34 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cid_face_init                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given CID face object.                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream     :: The source font stream.                              */
-  /*                                                                       */
-  /*    face_index :: The index of the font face in the resource.          */
-  /*                                                                       */
-  /*    num_params :: Number of additional generic parameters.  Ignored.   */
-  /*                                                                       */
-  /*    params     :: Additional generic parameters.  Ignored.             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The newly built face object.                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cid_face_init
+   *
+   * @Description:
+   *   Initializes a given CID face object.
+   *
+   * @Input:
+   *   stream ::
+   *     The source font stream.
+   *
+   *   face_index ::
+   *     The index of the font face in the resource.
+   *
+   *   num_params ::
+   *     Number of additional generic parameters.  Ignored.
+   *
+   *   params ::
+   *     Additional generic parameters.  Ignored.
+   *
+   * @InOut:
+   *   face ::
+   *     The newly built face object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   cid_face_init( FT_Stream      stream,
                  FT_Face        cidface,        /* CID_Face */
@@ -449,20 +455,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cid_driver_init                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given CID driver object.                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target driver object.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cid_driver_init
+   *
+   * @Description:
+   *   Initializes a given CID driver object.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target driver object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   cid_driver_init( FT_Module  module )
   {
@@ -505,17 +512,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cid_driver_done                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a given CID driver.                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target CID driver.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cid_driver_done
+   *
+   * @Description:
+   *   Finalizes a given CID driver.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target CID driver.
+   */
   FT_LOCAL_DEF( void )
   cid_driver_done( FT_Module  driver )
   {
diff --git a/thirdparty/freetype/src/cid/cidobjs.h b/thirdparty/freetype/src/cid/cidobjs.h
index 0221f017dd..89c9aa74ab 100644
--- a/thirdparty/freetype/src/cid/cidobjs.h
+++ b/thirdparty/freetype/src/cid/cidobjs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidobjs.h                                                              */
-/*                                                                         */
-/*    CID objects manager (specification).                                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidobjs.h
+ *
+ *   CID objects manager (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CIDOBJS_H_
@@ -34,60 +34,60 @@ FT_BEGIN_HEADER
   typedef struct CID_Glyph_Hints_  CID_Glyph_Hints;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CID_Driver                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 driver object.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   CID_Driver
+   *
+   * @Description:
+   *   A handle to a Type 1 driver object.
+   */
   typedef struct CID_DriverRec_*  CID_Driver;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CID_Size                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 size object.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   CID_Size
+   *
+   * @Description:
+   *   A handle to a Type 1 size object.
+   */
   typedef struct CID_SizeRec_*  CID_Size;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CID_GlyphSlot                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 glyph slot object.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   CID_GlyphSlot
+   *
+   * @Description:
+   *   A handle to a Type 1 glyph slot object.
+   */
   typedef struct CID_GlyphSlotRec_*  CID_GlyphSlot;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    CID_CharMap                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 character mapping object.                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The Type 1 format doesn't use a charmap but an encoding table.     */
-  /*    The driver is responsible for making up charmap objects            */
-  /*    corresponding to these tables.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   CID_CharMap
+   *
+   * @Description:
+   *   A handle to a Type 1 character mapping object.
+   *
+   * @Note:
+   *   The Type 1 format doesn't use a charmap but an encoding table.
+   *   The driver is responsible for making up charmap objects
+   *   corresponding to these tables.
+   */
   typedef struct CID_CharMapRec_*  CID_CharMap;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* HERE BEGINS THE TYPE 1 SPECIFIC STUFF                                 */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * HERE BEGINS THE TYPE 1 SPECIFIC STUFF
+   *
+   */
 
 
   typedef struct  CID_SizeRec_
diff --git a/thirdparty/freetype/src/cid/cidparse.c b/thirdparty/freetype/src/cid/cidparse.c
index b1c7f3cb2c..1be46ec328 100644
--- a/thirdparty/freetype/src/cid/cidparse.c
+++ b/thirdparty/freetype/src/cid/cidparse.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidparse.c                                                             */
-/*                                                                         */
-/*    CID-keyed Type1 parser (body).                                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidparse.c
+ *
+ *   CID-keyed Type1 parser (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,14 +26,14 @@
 #include "ciderrs.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cidparse
+#define FT_COMPONENT  cidparse
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/cid/cidparse.h b/thirdparty/freetype/src/cid/cidparse.h
index 61602f7674..ec1f6a346d 100644
--- a/thirdparty/freetype/src/cid/cidparse.h
+++ b/thirdparty/freetype/src/cid/cidparse.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidparse.h                                                             */
-/*                                                                         */
-/*    CID-keyed Type1 parser (specification).                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidparse.h
+ *
+ *   CID-keyed Type1 parser (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CIDPARSE_H_
@@ -29,35 +29,43 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    CID_Parser                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A CID_Parser is an object used to parse a Type 1 fonts very        */
-  /*    quickly.                                                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root           :: The root PS_ParserRec fields.                    */
-  /*                                                                       */
-  /*    stream         :: The current input stream.                        */
-  /*                                                                       */
-  /*    postscript     :: A pointer to the data to be parsed.              */
-  /*                                                                       */
-  /*    postscript_len :: The length of the data to be parsed.             */
-  /*                                                                       */
-  /*    data_offset    :: The start position of the binary data (i.e., the */
-  /*                      end of the data to be parsed.                    */
-  /*                                                                       */
-  /*    binary_length  :: The length of the data after the `StartData'     */
-  /*                      command if the data format is hexadecimal.       */
-  /*                                                                       */
-  /*    cid            :: A structure which holds the information about    */
-  /*                      the current font.                                */
-  /*                                                                       */
-  /*    num_dict       :: The number of font dictionaries.                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   CID_Parser
+   *
+   * @Description:
+   *   A CID_Parser is an object used to parse a Type 1 fonts very
+   *   quickly.
+   *
+   * @Fields:
+   *   root ::
+   *     The root PS_ParserRec fields.
+   *
+   *   stream ::
+   *     The current input stream.
+   *
+   *   postscript ::
+   *     A pointer to the data to be parsed.
+   *
+   *   postscript_len ::
+   *     The length of the data to be parsed.
+   *
+   *   data_offset ::
+   *     The start position of the binary data (i.e., the
+   *     end of the data to be parsed.
+   *
+   *   binary_length ::
+   *     The length of the data after the `StartData'
+   *     command if the data format is hexadecimal.
+   *
+   *   cid ::
+   *     A structure which holds the information about
+   *     the current font.
+   *
+   *   num_dict ::
+   *     The number of font dictionaries.
+   */
   typedef struct  CID_Parser_
   {
     PS_ParserRec  root;
@@ -86,11 +94,11 @@ FT_BEGIN_HEADER
   cid_parser_done( CID_Parser*  parser );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            PARSING ROUTINES                           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                           PARSING ROUTINES
+   *
+   */
 
 #define cid_parser_skip_spaces( p )                 \
           (p)->root.funcs.skip_spaces( &(p)->root )
diff --git a/thirdparty/freetype/src/cid/cidriver.c b/thirdparty/freetype/src/cid/cidriver.c
index d9faf353ea..4d91e87529 100644
--- a/thirdparty/freetype/src/cid/cidriver.c
+++ b/thirdparty/freetype/src/cid/cidriver.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidriver.c                                                             */
-/*                                                                         */
-/*    CID driver interface (body).                                         */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidriver.c
+ *
+ *   CID driver interface (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -34,18 +34,18 @@
 #include FT_INTERNAL_POSTSCRIPT_AUX_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ciddriver
+#define FT_COMPONENT  ciddriver
 
 
   /*
-   *  POSTSCRIPT NAME SERVICE
+   * POSTSCRIPT NAME SERVICE
    *
    */
 
@@ -69,7 +69,7 @@
 
 
   /*
-   *  POSTSCRIPT INFO SERVICE
+   * POSTSCRIPT INFO SERVICE
    *
    */
 
@@ -105,7 +105,7 @@
 
 
   /*
-   *  CID INFO SERVICE
+   * CID INFO SERVICE
    *
    */
   static FT_Error
@@ -173,7 +173,7 @@
 
 
   /*
-   *  PROPERTY SERVICE
+   * PROPERTY SERVICE
    *
    */
 
@@ -185,7 +185,7 @@
 
 
   /*
-   *  SERVICE LIST
+   * SERVICE LIST
    *
    */
 
diff --git a/thirdparty/freetype/src/cid/cidriver.h b/thirdparty/freetype/src/cid/cidriver.h
index 59d9ded901..3402fd7e99 100644
--- a/thirdparty/freetype/src/cid/cidriver.h
+++ b/thirdparty/freetype/src/cid/cidriver.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidriver.h                                                             */
-/*                                                                         */
-/*    High-level CID driver interface (specification).                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidriver.h
+ *
+ *   High-level CID driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CIDRIVER_H_
@@ -26,15 +26,9 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
-
   FT_CALLBACK_TABLE
   const FT_Driver_ClassRec  t1cid_driver_class;
 
-
 FT_END_HEADER
 
 #endif /* CIDRIVER_H_ */
diff --git a/thirdparty/freetype/src/cid/cidtoken.h b/thirdparty/freetype/src/cid/cidtoken.h
index b0e2dac6aa..f505c9e166 100644
--- a/thirdparty/freetype/src/cid/cidtoken.h
+++ b/thirdparty/freetype/src/cid/cidtoken.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cidtoken.h                                                             */
-/*                                                                         */
-/*    CID token definitions (specification only).                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cidtoken.h
+ *
+ *   CID token definitions (specification only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #undef  FT_STRUCTURE
@@ -21,17 +21,20 @@
 #undef  T1CODE
 #define T1CODE        T1_FIELD_LOCATION_CID_INFO
 
-  T1_FIELD_KEY   ( "CIDFontName",    cid_font_name, 0 )
-  T1_FIELD_FIXED ( "CIDFontVersion", cid_version,   0 )
-  T1_FIELD_NUM   ( "CIDFontType",    cid_font_type, 0 )
-  T1_FIELD_STRING( "Registry",       registry,      0 )
-  T1_FIELD_STRING( "Ordering",       ordering,      0 )
-  T1_FIELD_NUM   ( "Supplement",     supplement,    0 )
-  T1_FIELD_NUM   ( "UIDBase",        uid_base,      0 )
-  T1_FIELD_NUM   ( "CIDMapOffset",   cidmap_offset, 0 )
-  T1_FIELD_NUM   ( "FDBytes",        fd_bytes,      0 )
-  T1_FIELD_NUM   ( "GDBytes",        gd_bytes,      0 )
-  T1_FIELD_NUM   ( "CIDCount",       cid_count,     0 )
+  T1_FIELD_KEY      ( "CIDFontName",    cid_font_name, 0 )
+  T1_FIELD_FIXED    ( "CIDFontVersion", cid_version,   0 )
+  T1_FIELD_NUM      ( "CIDFontType",    cid_font_type, 0 )
+  T1_FIELD_STRING   ( "Registry",       registry,      0 )
+  T1_FIELD_STRING   ( "Ordering",       ordering,      0 )
+  T1_FIELD_NUM      ( "Supplement",     supplement,    0 )
+  T1_FIELD_NUM      ( "UIDBase",        uid_base,      0 )
+
+  T1_FIELD_NUM_TABLE( "XUID",           xuid,          16, 0 )
+
+  T1_FIELD_NUM      ( "CIDMapOffset",   cidmap_offset, 0 )
+  T1_FIELD_NUM      ( "FDBytes",        fd_bytes,      0 )
+  T1_FIELD_NUM      ( "GDBytes",        gd_bytes,      0 )
+  T1_FIELD_NUM      ( "CIDCount",       cid_count,     0 )
 
 
 #undef  FT_STRUCTURE
diff --git a/thirdparty/freetype/src/cid/module.mk b/thirdparty/freetype/src/cid/module.mk
index 9010e339a4..875c683c72 100644
--- a/thirdparty/freetype/src/cid/module.mk
+++ b/thirdparty/freetype/src/cid/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/cid/rules.mk b/thirdparty/freetype/src/cid/rules.mk
index 94333bda06..2b68dd48a0 100644
--- a/thirdparty/freetype/src/cid/rules.mk
+++ b/thirdparty/freetype/src/cid/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/cid/type1cid.c b/thirdparty/freetype/src/cid/type1cid.c
index 61770e3f1e..d21801cec1 100644
--- a/thirdparty/freetype/src/cid/type1cid.c
+++ b/thirdparty/freetype/src/cid/type1cid.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  type1cid.c                                                             */
-/*                                                                         */
-/*    FreeType OpenType driver component (body only).                      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * type1cid.c
+ *
+ *   FreeType OpenType driver component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/gxvalid/README b/thirdparty/freetype/src/gxvalid/README
index af8128e0e7..d493587842 100644
--- a/thirdparty/freetype/src/gxvalid/README
+++ b/thirdparty/freetype/src/gxvalid/README
@@ -518,7 +518,7 @@ gxvalid: TrueType GX validator
 
 ------------------------------------------------------------------------
 
-Copyright 2004-2018 by
+Copyright (C) 2004-2019 by
 suzuki toshiya, Masatake YAMATO, Red hat K.K.,
 David Turner, Robert Wilhelm, and Werner Lemberg.
 
diff --git a/thirdparty/freetype/src/gxvalid/gxvalid.c b/thirdparty/freetype/src/gxvalid/gxvalid.c
index d0577a247e..462e461bf2 100644
--- a/thirdparty/freetype/src/gxvalid/gxvalid.c
+++ b/thirdparty/freetype/src/gxvalid/gxvalid.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvalid.c                                                              */
-/*                                                                         */
-/*    FreeType validator for TrueTypeGX/AAT tables (body only).            */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvalid.c
+ *
+ *   FreeType validator for TrueTypeGX/AAT tables (body only).
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/gxvalid/gxvalid.h b/thirdparty/freetype/src/gxvalid/gxvalid.h
index 19f0379982..969cd0927a 100644
--- a/thirdparty/freetype/src/gxvalid/gxvalid.h
+++ b/thirdparty/freetype/src/gxvalid/gxvalid.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvalid.h                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT table validation (specification only).                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvalid.h
+ *
+ *   TrueTypeGX/AAT table validation (specification only).
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef GXVALID_H_
diff --git a/thirdparty/freetype/src/gxvalid/gxvbsln.c b/thirdparty/freetype/src/gxvalid/gxvbsln.c
index c367d38483..f22f2545fa 100644
--- a/thirdparty/freetype/src/gxvalid/gxvbsln.c
+++ b/thirdparty/freetype/src/gxvalid/gxvbsln.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvbsln.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT bsln table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvbsln.c
+ *
+ *   TrueTypeGX/AAT bsln table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvbsln
+#define FT_COMPONENT  gxvbsln
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/gxvcommn.c b/thirdparty/freetype/src/gxvalid/gxvcommn.c
index b96601108b..c5cb8ebe8b 100644
--- a/thirdparty/freetype/src/gxvalid/gxvcommn.c
+++ b/thirdparty/freetype/src/gxvalid/gxvcommn.c
@@ -1,41 +1,41 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvcommn.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT common tables validation (body).                      */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvcommn.c
+ *
+ *   TrueTypeGX/AAT common tables validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvcommon
+#define FT_COMPONENT  gxvcommon
 
 
   /*************************************************************************/
@@ -384,8 +384,8 @@
           ( P += 2, gxv_lookup_value_load( P - 2, SIGNSPEC ) )
 
   static GXV_LookupValueDesc
-  gxv_lookup_value_load( FT_Bytes  p,
-                         int       signspec )
+  gxv_lookup_value_load( FT_Bytes                  p,
+                         GXV_LookupValue_SignSpec  signspec )
   {
     GXV_LookupValueDesc  v;
 
diff --git a/thirdparty/freetype/src/gxvalid/gxvcommn.h b/thirdparty/freetype/src/gxvalid/gxvcommn.h
index 8e4ff9cafc..334dc9dfb3 100644
--- a/thirdparty/freetype/src/gxvalid/gxvcommn.h
+++ b/thirdparty/freetype/src/gxvalid/gxvcommn.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvcommn.h                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT common tables validation (specification).             */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvcommn.h
+ *
+ *   TrueTypeGX/AAT common tables validation (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
   /*
    * keywords in variable naming
    * ---------------------------
-   *  table: Of type FT_Bytes, pointing to the start of this table/subtable.
-   *  limit: Of type FT_Bytes, pointing to the end of this table/subtable,
+   * table:  Of type FT_Bytes, pointing to the start of this table/subtable.
+   * limit:  Of type FT_Bytes, pointing to the end of this table/subtable,
    *         including padding for alignment.
-   *  offset: Of type FT_UInt, the number of octets from the start to target.
-   *  length: Of type FT_UInt, the number of octets from the start to the
-   *          end in this table/subtable, including padding for alignment.
+   * offset: Of type FT_UInt, the number of octets from the start to target.
+   * length: Of type FT_UInt, the number of octets from the start to the
+   *         end in this table/subtable, including padding for alignment.
    *
    *  _MIN, _MAX: Should be added to the tail of macros, as INT_MIN, etc.
    */
diff --git a/thirdparty/freetype/src/gxvalid/gxverror.h b/thirdparty/freetype/src/gxvalid/gxverror.h
index d1151258a9..da0edb35f9 100644
--- a/thirdparty/freetype/src/gxvalid/gxverror.h
+++ b/thirdparty/freetype/src/gxvalid/gxverror.h
@@ -1,36 +1,36 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxverror.h                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT validation module error codes (specification only).   */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the OpenType validation module error      */
-  /* enumeration constants.                                                */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * gxverror.h
+ *
+ *   TrueTypeGX/AAT validation module error codes (specification only).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the OpenType validation module error
+   * enumeration constants.
+   *
+   */
 
 #ifndef GXVERROR_H_
 #define GXVERROR_H_
diff --git a/thirdparty/freetype/src/gxvalid/gxvfeat.c b/thirdparty/freetype/src/gxvalid/gxvfeat.c
index 2c805d1d11..e1a12a18ed 100644
--- a/thirdparty/freetype/src/gxvalid/gxvfeat.c
+++ b/thirdparty/freetype/src/gxvalid/gxvfeat.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvfeat.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT feat table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvfeat.c
+ *
+ *   TrueTypeGX/AAT feat table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
@@ -30,14 +30,14 @@
 #include "gxvfeat.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvfeat
+#define FT_COMPONENT  gxvfeat
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/gxvfeat.h b/thirdparty/freetype/src/gxvalid/gxvfeat.h
index 2d943806c1..6c9892910c 100644
--- a/thirdparty/freetype/src/gxvalid/gxvfeat.h
+++ b/thirdparty/freetype/src/gxvalid/gxvfeat.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvfeat.h                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT feat table validation (specification).                */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvfeat.h
+ *
+ *   TrueTypeGX/AAT feat table validation (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef GXVFEAT_H_
diff --git a/thirdparty/freetype/src/gxvalid/gxvfgen.c b/thirdparty/freetype/src/gxvalid/gxvfgen.c
index 840c0f3524..5ecb9443c3 100644
--- a/thirdparty/freetype/src/gxvalid/gxvfgen.c
+++ b/thirdparty/freetype/src/gxvalid/gxvfgen.c
@@ -1,62 +1,62 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxfgen.c                                                               */
-/*                                                                         */
-/*    Generate feature registry data for gxv `feat' validator.             */
-/*    This program is derived from gxfeatreg.c in gxlayout.                */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Masatake YAMATO and Redhat K.K.                                        */
-/*                                                                         */
-/*  This file may only be used,                                            */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxfgen.c
+ *
+ *   Generate feature registry data for gxv `feat' validator.
+ *   This program is derived from gxfeatreg.c in gxlayout.
+ *
+ * Copyright (C) 2004-2019 by
+ * Masatake YAMATO and Redhat K.K.
+ *
+ * This file may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
-/***************************************************************************/
-/*                                                                         */
-/*  gxfeatreg.c                                                            */
-/*                                                                         */
-/*    Database of font features pre-defined by Apple Computer, Inc.        */
-/*    https://developer.apple.com/fonts/TrueType-Reference-Manual/RM09/AppendixF.html */
-/*    (body).                                                              */
-/*                                                                         */
-/*  Copyright 2003 by                                                      */
-/*  Masatake YAMATO and Redhat K.K.                                        */
-/*                                                                         */
-/*  This file may only be used,                                            */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxfeatreg.c
+ *
+ *   Database of font features pre-defined by Apple Computer, Inc.
+ *   https://developer.apple.com/fonts/TrueType-Reference-Manual/RM09/AppendixF.html
+ *   (body).
+ *
+ * Copyright 2003 by
+ * Masatake YAMATO and Redhat K.K.
+ *
+ * This file may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
-/***************************************************************************/
-/*                                                                         */
-/* Development of gxfeatreg.c is supported by                              */
-/* Information-technology Promotion Agency, Japan.                         */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * Development of gxfeatreg.c is supported by
+ * Information-technology Promotion Agency, Japan.
+ *
+ */
 
 
-/***************************************************************************/
-/*                                                                         */
-/* This file is compiled as a stand-alone executable.                      */
-/* This file is never compiled into `libfreetype2'.                        */
-/* The output of this file is used in `gxvfeat.c'.                         */
-/* ----------------------------------------------------------------------- */
-/* Compile: gcc `pkg-config --cflags freetype2` gxvfgen.c -o gxvfgen       */
-/* Run: ./gxvfgen > tmp.c                                                  */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * This file is compiled as a stand-alone executable.
+ * This file is never compiled into `libfreetype2'.
+ * The output of this file is used in `gxvfeat.c'.
+ * -----------------------------------------------------------------------
+ * Compile: gcc `pkg-config --cflags freetype2` gxvfgen.c -o gxvfgen
+ * Run: ./gxvfgen > tmp.c
+ *
+ */
 
-  /*******************************************************************/
-  /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING */
-  /*******************************************************************/
+  /********************************************************************
+   * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+   */
 
   /*
    * If you add a new setting to a feature, check the number of settings
@@ -65,9 +65,9 @@
    */
 #define FEATREG_MAX_SETTING  12
 
-  /*******************************************************************/
-  /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING */
-  /*******************************************************************/
+  /********************************************************************
+   * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+   */
 
 
 #include <stdio.h>
diff --git a/thirdparty/freetype/src/gxvalid/gxvjust.c b/thirdparty/freetype/src/gxvalid/gxvjust.c
index 00c4293195..a582377859 100644
--- a/thirdparty/freetype/src/gxvalid/gxvjust.c
+++ b/thirdparty/freetype/src/gxvalid/gxvjust.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvjust.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT just table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvjust.c
+ *
+ *   TrueTypeGX/AAT just table validation (body).
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
@@ -31,14 +31,14 @@
 #include FT_SFNT_NAMES_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvjust
+#define FT_COMPONENT  gxvjust
 
   /*
    * referred `just' table format specification:
@@ -72,6 +72,8 @@
                           const FT_String*  msg_tag,
                           GXV_Validator     gxvalid )
   {
+    FT_UNUSED( msg_tag );
+
     if ( gid < gxvalid->face->num_glyphs )
       return;
 
diff --git a/thirdparty/freetype/src/gxvalid/gxvkern.c b/thirdparty/freetype/src/gxvalid/gxvkern.c
index 9c0efd7a4f..a7532335a5 100644
--- a/thirdparty/freetype/src/gxvalid/gxvkern.c
+++ b/thirdparty/freetype/src/gxvalid/gxvkern.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvkern.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT kern table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvkern.c
+ *
+ *   TrueTypeGX/AAT kern table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
@@ -32,14 +32,14 @@
 #include FT_SERVICE_GX_VALIDATE_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvkern
+#define FT_COMPONENT  gxvkern
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/gxvlcar.c b/thirdparty/freetype/src/gxvalid/gxvlcar.c
index 0f261a9ace..13b3de3eaa 100644
--- a/thirdparty/freetype/src/gxvalid/gxvlcar.c
+++ b/thirdparty/freetype/src/gxvalid/gxvlcar.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvlcar.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT lcar table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvlcar.c
+ *
+ *   TrueTypeGX/AAT lcar table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvlcar
+#define FT_COMPONENT  gxvlcar
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/gxvmod.c b/thirdparty/freetype/src/gxvalid/gxvmod.c
index 1a3c862927..eeadeb3e1d 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmod.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmod.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmod.c                                                               */
-/*                                                                         */
-/*    FreeType's TrueTypeGX/AAT validation module implementation (body).   */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmod.c
+ *
+ *   FreeType's TrueTypeGX/AAT validation module implementation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -37,14 +37,14 @@
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmodule
+#define FT_COMPONENT  gxvmodule
 
 
   static FT_Error
diff --git a/thirdparty/freetype/src/gxvalid/gxvmod.h b/thirdparty/freetype/src/gxvalid/gxvmod.h
index 745c62e105..6ecd7312c9 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmod.h
+++ b/thirdparty/freetype/src/gxvalid/gxvmod.h
@@ -1,29 +1,29 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmod.h                                                               */
-/*                                                                         */
-/*    FreeType's TrueTypeGX/AAT validation module implementation           */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmod.h
+ *
+ *   FreeType's TrueTypeGX/AAT validation module implementation
+ *   (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef GXVMOD_H_
@@ -35,10 +35,6 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
 
   FT_EXPORT_VAR( const FT_Module_Class )  gxv_module_class;
 
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort.c b/thirdparty/freetype/src/gxvalid/gxvmort.c
index b361cb2b9d..288ef6988b 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT mort table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort.c
+ *
+ *   TrueTypeGX/AAT mort table validation (body).
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmort.h"
 #include "gxvfeat.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmort
+#define FT_COMPONENT  gxvmort
 
 
   static void
@@ -123,6 +123,7 @@
                               GXV_Validator  gxvalid )
   {
     FT_UNUSED( gxvalid );
+    FT_UNUSED( coverage );
 
 #ifdef FT_DEBUG_LEVEL_TRACE
     if ( coverage & 0x8000U )
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort.h b/thirdparty/freetype/src/gxvalid/gxvmort.h
index d8030645e9..0619e24fb9 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort.h
+++ b/thirdparty/freetype/src/gxvalid/gxvmort.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort.h                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT common definition for mort table (specification).     */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort.h
+ *
+ *   TrueTypeGX/AAT common definition for mort table (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef GXVMORT_H_
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort0.c b/thirdparty/freetype/src/gxvalid/gxvmort0.c
index 95cf53d5eb..2c01bf95ec 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort0.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort0.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort0.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT mort table validation                                 */
-/*    body for type0 (Indic Script Rearrangement) subtable.                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort0.c
+ *
+ *   TrueTypeGX/AAT mort table validation
+ *   body for type0 (Indic Script Rearrangement) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmort.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmort
+#define FT_COMPONENT  gxvmort
 
 
   static const char* GXV_Mort_IndicScript_Msg[] =
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort1.c b/thirdparty/freetype/src/gxvalid/gxvmort1.c
index a7683a17b0..c71ba13351 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort1.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort1.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort1.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT mort table validation                                 */
-/*    body for type1 (Contextual Substitution) subtable.                   */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort1.c
+ *
+ *   TrueTypeGX/AAT mort table validation
+ *   body for type1 (Contextual Substitution) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmort.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmort
+#define FT_COMPONENT  gxvmort
 
 
   typedef struct  GXV_mort_subtable_type1_StateOptRec_
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort2.c b/thirdparty/freetype/src/gxvalid/gxvmort2.c
index c23c2775a1..889d3bd582 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort2.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort2.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort2.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT mort table validation                                 */
-/*    body for type2 (Ligature Substitution) subtable.                     */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort2.c
+ *
+ *   TrueTypeGX/AAT mort table validation
+ *   body for type2 (Ligature Substitution) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmort.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmort
+#define FT_COMPONENT  gxvmort
 
 
   typedef struct  GXV_mort_subtable_type2_StateOptRec_
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort4.c b/thirdparty/freetype/src/gxvalid/gxvmort4.c
index 9d21a5fc29..f8ce6cf789 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort4.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort4.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort4.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT mort table validation                                 */
-/*    body for type4 (Non-Contextual Glyph Substitution) subtable.         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort4.c
+ *
+ *   TrueTypeGX/AAT mort table validation
+ *   body for type4 (Non-Contextual Glyph Substitution) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmort.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmort
+#define FT_COMPONENT  gxvmort
 
 
   static void
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort5.c b/thirdparty/freetype/src/gxvalid/gxvmort5.c
index 42cb428aa8..1ba1e5ded0 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort5.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort5.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmort5.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT mort table validation                                 */
-/*    body for type5 (Contextual Glyph Insertion) subtable.                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmort5.c
+ *
+ *   TrueTypeGX/AAT mort table validation
+ *   body for type5 (Contextual Glyph Insertion) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmort.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmort
+#define FT_COMPONENT  gxvmort
 
 
   /*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx.c b/thirdparty/freetype/src/gxvalid/gxvmorx.c
index 9fd6e6b971..8bd45c27e6 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx.c
@@ -1,41 +1,41 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT morx table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx.c
+ *
+ *   TrueTypeGX/AAT morx table validation (body).
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmorx.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmorx
+#define FT_COMPONENT  gxvmorx
 
 
   static void
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx.h b/thirdparty/freetype/src/gxvalid/gxvmorx.h
index 6d9925e92b..e257270342 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx.h
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx.h                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT common definition for morx table (specification).     */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx.h
+ *
+ *   TrueTypeGX/AAT common definition for morx table (specification).
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #ifndef GXVMORX_H_
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx0.c b/thirdparty/freetype/src/gxvalid/gxvmorx0.c
index 302261b7fa..d7764a0ae8 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx0.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx0.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx0.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT morx table validation                                 */
-/*    body for type0 (Indic Script Rearrangement) subtable.                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx0.c
+ *
+ *   TrueTypeGX/AAT morx table validation
+ *   body for type0 (Indic Script Rearrangement) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmorx.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmorx
+#define FT_COMPONENT  gxvmorx
 
 
   static void
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx1.c b/thirdparty/freetype/src/gxvalid/gxvmorx1.c
index 890ca74b1d..5b41b3605f 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx1.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx1.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx1.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT morx table validation                                 */
-/*    body for type1 (Contextual Substitution) subtable.                   */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx1.c
+ *
+ *   TrueTypeGX/AAT morx table validation
+ *   body for type1 (Contextual Substitution) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmorx.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmorx
+#define FT_COMPONENT  gxvmorx
 
 
   typedef struct  GXV_morx_subtable_type1_StateOptRec_
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx2.c b/thirdparty/freetype/src/gxvalid/gxvmorx2.c
index 3135031d45..ec4c81299d 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx2.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx2.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx2.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT morx table validation                                 */
-/*    body for type2 (Ligature Substitution) subtable.                     */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx2.c
+ *
+ *   TrueTypeGX/AAT morx table validation
+ *   body for type2 (Ligature Substitution) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmorx.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmorx
+#define FT_COMPONENT  gxvmorx
 
 
   typedef struct  GXV_morx_subtable_type2_StateOptRec_
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx4.c b/thirdparty/freetype/src/gxvalid/gxvmorx4.c
index 1e2397b0c5..7b041534c0 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx4.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx4.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx4.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT morx table validation                                 */
-/*    body for "morx" type4 (Non-Contextual Glyph Substitution) subtable.  */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx4.c
+ *
+ *   TrueTypeGX/AAT morx table validation
+ *   body for "morx" type4 (Non-Contextual Glyph Substitution) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmorx.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmorx
+#define FT_COMPONENT  gxvmorx
 
 
   FT_LOCAL_DEF( void )
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx5.c b/thirdparty/freetype/src/gxvalid/gxvmorx5.c
index db4f9290c8..70a4623656 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx5.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx5.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvmorx5.c                                                             */
-/*                                                                         */
-/*    TrueTypeGX/AAT morx table validation                                 */
-/*    body for type5 (Contextual Glyph Insertion) subtable.                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvmorx5.c
+ *
+ *   TrueTypeGX/AAT morx table validation
+ *   body for type5 (Contextual Glyph Insertion) subtable.
+ *
+ * Copyright (C) 2005-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvmorx.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvmorx
+#define FT_COMPONENT  gxvmorx
 
 
   /*
diff --git a/thirdparty/freetype/src/gxvalid/gxvopbd.c b/thirdparty/freetype/src/gxvalid/gxvopbd.c
index e2c167ea59..f055a22054 100644
--- a/thirdparty/freetype/src/gxvalid/gxvopbd.c
+++ b/thirdparty/freetype/src/gxvalid/gxvopbd.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvopbd.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT opbd table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvopbd.c
+ *
+ *   TrueTypeGX/AAT opbd table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvopbd
+#define FT_COMPONENT  gxvopbd
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/gxvprop.c b/thirdparty/freetype/src/gxvalid/gxvprop.c
index a67b6bdd00..e1911edd48 100644
--- a/thirdparty/freetype/src/gxvalid/gxvprop.c
+++ b/thirdparty/freetype/src/gxvalid/gxvprop.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvprop.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT prop table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvprop.c
+ *
+ *   TrueTypeGX/AAT prop table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvprop
+#define FT_COMPONENT  gxvprop
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/gxvtrak.c b/thirdparty/freetype/src/gxvalid/gxvtrak.c
index d501b5014b..b7794b7af4 100644
--- a/thirdparty/freetype/src/gxvalid/gxvtrak.c
+++ b/thirdparty/freetype/src/gxvalid/gxvtrak.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  gxvtrak.c                                                              */
-/*                                                                         */
-/*    TrueTypeGX/AAT trak table validation (body).                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  suzuki toshiya, Masatake YAMATO, Red Hat K.K.,                         */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-/***************************************************************************/
-/*                                                                         */
-/* gxvalid is derived from both gxlayout module and otvalid module.        */
-/* Development of gxlayout is supported by the Information-technology      */
-/* Promotion Agency(IPA), Japan.                                           */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * gxvtrak.c
+ *
+ *   TrueTypeGX/AAT trak table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+/****************************************************************************
+ *
+ * gxvalid is derived from both gxlayout module and otvalid module.
+ * Development of gxlayout is supported by the Information-technology
+ * Promotion Agency(IPA), Japan.
+ *
+ */
 
 
 #include "gxvalid.h"
 #include "gxvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_gxvtrak
+#define FT_COMPONENT  gxvtrak
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/gxvalid/module.mk b/thirdparty/freetype/src/gxvalid/module.mk
index b64879dcee..04067ce617 100644
--- a/thirdparty/freetype/src/gxvalid/module.mk
+++ b/thirdparty/freetype/src/gxvalid/module.mk
@@ -2,7 +2,7 @@
 # FreeType 2 gxvalid module definition
 #
 
-# Copyright 2004-2018 by
+# Copyright (C) 2004-2019 by
 # suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
diff --git a/thirdparty/freetype/src/gxvalid/rules.mk b/thirdparty/freetype/src/gxvalid/rules.mk
index 3a17c030a6..4ef463bc21 100644
--- a/thirdparty/freetype/src/gxvalid/rules.mk
+++ b/thirdparty/freetype/src/gxvalid/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2004-2018 by
+# Copyright (C) 2004-2019 by
 # suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
diff --git a/thirdparty/freetype/src/gzip/ftgzip.c b/thirdparty/freetype/src/gzip/ftgzip.c
index f8011c2dd8..a5206307f4 100644
--- a/thirdparty/freetype/src/gzip/ftgzip.c
+++ b/thirdparty/freetype/src/gzip/ftgzip.c
@@ -1,23 +1,23 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgzip.c                                                               */
-/*                                                                         */
-/*    FreeType support for .gz compressed files.                           */
-/*                                                                         */
-/*  This optional component relies on zlib.  It should mainly be used to   */
-/*  parse compressed PCF fonts, as found with many X11 server              */
-/*  distributions.                                                         */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgzip.c
+ *
+ *   FreeType support for .gz compressed files.
+ *
+ * This optional component relies on zlib.  It should mainly be used to
+ * parse compressed PCF fonts, as found with many X11 server
+ * distributions.
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -41,10 +41,6 @@
 
 #ifdef FT_CONFIG_OPTION_USE_ZLIB
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "gzip code does not support PIC yet"
-#endif
-
 #ifdef FT_CONFIG_OPTION_SYSTEM_ZLIB
 
 #include <zlib.h>
@@ -637,8 +633,8 @@
     memory = source->memory;
 
     /*
-     *  check the header right now; this prevents allocating un-necessary
-     *  objects when we don't need them
+     * check the header right now; this prevents allocating un-necessary
+     * objects when we don't need them
      */
     error = ft_gzip_check_header( source );
     if ( error )
@@ -660,12 +656,12 @@
     }
 
     /*
-     *  We use the following trick to try to dramatically improve the
-     *  performance while dealing with small files.  If the original stream
-     *  size is less than a certain threshold, we try to load the whole font
-     *  file into memory.  This saves us from using the 32KB buffer needed
-     *  to inflate the file, plus the two 4KB intermediate input/output
-     *  buffers used in the `FT_GZipFile' structure.
+     * We use the following trick to try to dramatically improve the
+     * performance while dealing with small files.  If the original stream
+     * size is less than a certain threshold, we try to load the whole font
+     * file into memory.  This saves us from using the 32KB buffer needed
+     * to inflate the file, plus the two 4KB intermediate input/output
+     * buffers used in the `FT_GZipFile' structure.
      */
     {
       FT_ULong  zip_size = ft_gzip_get_uncompressed_size( source );
@@ -735,7 +731,7 @@
 
     /* check for `input' delayed to `inflate' */
 
-    if ( !memory || ! output_len || !output )
+    if ( !memory || !output_len || !output )
       return FT_THROW( Invalid_Argument );
 
     /* this function is modeled after zlib's `uncompress' function */
diff --git a/thirdparty/freetype/src/gzip/rules.mk b/thirdparty/freetype/src/gzip/rules.mk
index 1a2e48bebd..44206a1dae 100644
--- a/thirdparty/freetype/src/gzip/rules.mk
+++ b/thirdparty/freetype/src/gzip/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2002-2018 by
+# Copyright (C) 2002-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/lzw/ftlzw.c b/thirdparty/freetype/src/lzw/ftlzw.c
index cb46f93c68..9805a1e3bd 100644
--- a/thirdparty/freetype/src/lzw/ftlzw.c
+++ b/thirdparty/freetype/src/lzw/ftlzw.c
@@ -1,25 +1,25 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftlzw.c                                                                */
-/*                                                                         */
-/*    FreeType support for .Z compressed files.                            */
-/*                                                                         */
-/*  This optional component relies on NetBSD's zopen().  It should mainly  */
-/*  be used to parse compressed PCF fonts, as found with many X11 server   */
-/*  distributions.                                                         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  Albert Chin-A-Young.                                                   */
-/*                                                                         */
-/*  based on code in `src/gzip/ftgzip.c'                                   */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftlzw.c
+ *
+ *   FreeType support for .Z compressed files.
+ *
+ * This optional component relies on NetBSD's zopen().  It should mainly
+ * be used to parse compressed PCF fonts, as found with many X11 server
+ * distributions.
+ *
+ * Copyright (C) 2004-2019 by
+ * Albert Chin-A-Young.
+ *
+ * based on code in `src/gzip/ftgzip.c'
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_INTERNAL_MEMORY_H
@@ -42,10 +42,6 @@
 
 #ifdef FT_CONFIG_OPTION_USE_LZW
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "lzw code does not support PIC yet"
-#endif
-
 #include "ftzopen.h"
 
 
@@ -361,11 +357,11 @@
     memory = source->memory;
 
     /*
-     *  Check the header right now; this prevents allocation of a huge
-     *  LZWFile object (400 KByte of heap memory) if not necessary.
+     * Check the header right now; this prevents allocation of a huge
+     * LZWFile object (400 KByte of heap memory) if not necessary.
      *
-     *  Did I mention that you should never use .Z compressed font
-     *  files?
+     * Did I mention that you should never use .Z compressed font
+     * files?
      */
     error = ft_lzw_check_header( source );
     if ( error )
diff --git a/thirdparty/freetype/src/lzw/ftzopen.c b/thirdparty/freetype/src/lzw/ftzopen.c
index 2b868ba9f2..67e6760f95 100644
--- a/thirdparty/freetype/src/lzw/ftzopen.c
+++ b/thirdparty/freetype/src/lzw/ftzopen.c
@@ -1,23 +1,23 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftzopen.c                                                              */
-/*                                                                         */
-/*    FreeType support for .Z compressed files.                            */
-/*                                                                         */
-/*  This optional component relies on NetBSD's zopen().  It should mainly  */
-/*  be used to parse compressed PCF fonts, as found with many X11 server   */
-/*  distributions.                                                         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner.                                                          */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftzopen.c
+ *
+ *   FreeType support for .Z compressed files.
+ *
+ * This optional component relies on NetBSD's zopen().  It should mainly
+ * be used to parse compressed PCF fonts, as found with many X11 server
+ * distributions.
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include "ftzopen.h"
 #include FT_INTERNAL_MEMORY_H
@@ -167,11 +167,11 @@
       new_size += new_size >> 2;  /* don't grow too fast */
 
     /*
-     *  Note that the `suffix' array is located in the same memory block
-     *  pointed to by `prefix'.
+     * Note that the `suffix' array is located in the same memory block
+     * pointed to by `prefix'.
      *
-     *  I know that sizeof(FT_Byte) == 1 by definition, but it is clearer
-     *  to write it literally.
+     * I know that sizeof(FT_Byte) == 1 by definition, but it is clearer
+     * to write it literally.
      *
      */
     if ( FT_REALLOC_MULT( state->prefix, old_size, new_size,
diff --git a/thirdparty/freetype/src/lzw/ftzopen.h b/thirdparty/freetype/src/lzw/ftzopen.h
index 4fd267eb90..44fe36d6c5 100644
--- a/thirdparty/freetype/src/lzw/ftzopen.h
+++ b/thirdparty/freetype/src/lzw/ftzopen.h
@@ -1,23 +1,23 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftzopen.h                                                              */
-/*                                                                         */
-/*    FreeType support for .Z compressed files.                            */
-/*                                                                         */
-/*  This optional component relies on NetBSD's zopen().  It should mainly  */
-/*  be used to parse compressed PCF fonts, as found with many X11 server   */
-/*  distributions.                                                         */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner.                                                          */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftzopen.h
+ *
+ *   FreeType support for .Z compressed files.
+ *
+ * This optional component relies on NetBSD's zopen().  It should mainly
+ * be used to parse compressed PCF fonts, as found with many X11 server
+ * distributions.
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #ifndef FTZOPEN_H_
 #define FTZOPEN_H_
@@ -27,9 +27,9 @@
 
 
   /*
-   *  This is a complete re-implementation of the LZW file reader,
-   *  since the old one was incredibly badly written, using
-   *  400 KByte of heap memory before decompressing anything.
+   * This is a complete re-implementation of the LZW file reader,
+   * since the old one was incredibly badly written, using
+   * 400 KByte of heap memory before decompressing anything.
    *
    */
 
@@ -58,56 +58,56 @@
 
 
   /*
-   *  state of LZW decompressor
+   * state of LZW decompressor
    *
-   *  small technical note
-   *  --------------------
+   * small technical note
+   * --------------------
    *
-   *  We use a few tricks in this implementation that are explained here to
-   *  ease debugging and maintenance.
+   * We use a few tricks in this implementation that are explained here to
+   * ease debugging and maintenance.
    *
-   *  - First of all, the `prefix' and `suffix' arrays contain the suffix
-   *    and prefix for codes over 256; this means that
+   * - First of all, the `prefix' and `suffix' arrays contain the suffix
+   *   and prefix for codes over 256; this means that
    *
-   *      prefix_of(code) == state->prefix[code-256]
-   *      suffix_of(code) == state->suffix[code-256]
+   *     prefix_of(code) == state->prefix[code-256]
+   *     suffix_of(code) == state->suffix[code-256]
    *
-   *    Each prefix is a 16-bit code, and each suffix an 8-bit byte.
+   *   Each prefix is a 16-bit code, and each suffix an 8-bit byte.
    *
-   *    Both arrays are stored in a single memory block, pointed to by
-   *    `state->prefix'.  This means that the following equality is always
-   *    true:
+   *   Both arrays are stored in a single memory block, pointed to by
+   *   `state->prefix'.  This means that the following equality is always
+   *   true:
    *
-   *      state->suffix == (FT_Byte*)(state->prefix + state->prefix_size)
+   *     state->suffix == (FT_Byte*)(state->prefix + state->prefix_size)
    *
-   *    Of course, state->prefix_size is the number of prefix/suffix slots
-   *    in the arrays, corresponding to codes 256..255+prefix_size.
+   *   Of course, state->prefix_size is the number of prefix/suffix slots
+   *   in the arrays, corresponding to codes 256..255+prefix_size.
    *
-   *  - `free_ent' is the index of the next free entry in the `prefix'
-   *    and `suffix' arrays.  This means that the corresponding `next free
-   *    code' is really `256+free_ent'.
+   * - `free_ent' is the index of the next free entry in the `prefix'
+   *   and `suffix' arrays.  This means that the corresponding `next free
+   *   code' is really `256+free_ent'.
    *
-   *    Moreover, `max_free' is the maximum value that `free_ent' can reach.
+   *   Moreover, `max_free' is the maximum value that `free_ent' can reach.
    *
-   *    `max_free' corresponds to `(1 << max_bits) - 256'.  Note that this
-   *    value is always <= 0xFF00, which means that both `free_ent' and
-   *    `max_free' can be stored in an FT_UInt variable, even on 16-bit
-   *    machines.
+   *   `max_free' corresponds to `(1 << max_bits) - 256'.  Note that this
+   *   value is always <= 0xFF00, which means that both `free_ent' and
+   *   `max_free' can be stored in an FT_UInt variable, even on 16-bit
+   *   machines.
    *
-   *    If `free_ent == max_free', you cannot add new codes to the
-   *    prefix/suffix table.
+   *   If `free_ent == max_free', you cannot add new codes to the
+   *   prefix/suffix table.
    *
-   *  - `num_bits' is the current number of code bits, starting at 9 and
-   *    growing each time `free_ent' reaches the value of `free_bits'.  The
-   *    latter is computed as follows
+   * - `num_bits' is the current number of code bits, starting at 9 and
+   *   growing each time `free_ent' reaches the value of `free_bits'.  The
+   *   latter is computed as follows
    *
-   *      if num_bits < max_bits:
-   *         free_bits = (1 << num_bits)-256
-   *      else:
-   *         free_bits = max_free + 1
+   *     if num_bits < max_bits:
+   *        free_bits = (1 << num_bits)-256
+   *     else:
+   *        free_bits = max_free + 1
    *
-   *    Since the value of `max_free + 1' can never be reached by
-   *    `free_ent', `num_bits' cannot grow larger than `max_bits'.
+   *   Since the value of `max_free + 1' can never be reached by
+   *   `free_ent', `num_bits' cannot grow larger than `max_bits'.
    */
 
   typedef struct  FT_LzwStateRec_
diff --git a/thirdparty/freetype/src/lzw/rules.mk b/thirdparty/freetype/src/lzw/rules.mk
index 18933c41c2..930b32e6b1 100644
--- a/thirdparty/freetype/src/lzw/rules.mk
+++ b/thirdparty/freetype/src/lzw/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2004-2018 by
+# Copyright (C) 2004-2019 by
 # Albert Chin-A-Young.
 #
 # based on `src/lzw/rules.mk'
diff --git a/thirdparty/freetype/src/otvalid/module.mk b/thirdparty/freetype/src/otvalid/module.mk
index 34f3dab32f..5ea5b7b57b 100644
--- a/thirdparty/freetype/src/otvalid/module.mk
+++ b/thirdparty/freetype/src/otvalid/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2004-2018 by
+# Copyright (C) 2004-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/otvalid/otvalid.c b/thirdparty/freetype/src/otvalid/otvalid.c
index 4423ca1012..e3964b99ae 100644
--- a/thirdparty/freetype/src/otvalid/otvalid.c
+++ b/thirdparty/freetype/src/otvalid/otvalid.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvalid.c                                                              */
-/*                                                                         */
-/*    FreeType validator for OpenType tables (body only).                  */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvalid.c
+ *
+ *   FreeType validator for OpenType tables (body only).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/otvalid/otvalid.h b/thirdparty/freetype/src/otvalid/otvalid.h
index d7801abae5..5ca819f261 100644
--- a/thirdparty/freetype/src/otvalid/otvalid.h
+++ b/thirdparty/freetype/src/otvalid/otvalid.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvalid.h                                                              */
-/*                                                                         */
-/*    OpenType table validation (specification only).                      */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvalid.h
+ *
+ *   OpenType table validation (specification only).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef OTVALID_H_
diff --git a/thirdparty/freetype/src/otvalid/otvbase.c b/thirdparty/freetype/src/otvalid/otvbase.c
index a01d45c707..be69d7ca31 100644
--- a/thirdparty/freetype/src/otvalid/otvbase.c
+++ b/thirdparty/freetype/src/otvalid/otvbase.c
@@ -1,33 +1,33 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvbase.c                                                              */
-/*                                                                         */
-/*    OpenType BASE table validation (body).                               */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvbase.c
+ *
+ *   OpenType BASE table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvalid.h"
 #include "otvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvbase
+#define FT_COMPONENT  otvbase
 
 
   static void
diff --git a/thirdparty/freetype/src/otvalid/otvcommn.c b/thirdparty/freetype/src/otvalid/otvcommn.c
index 0ccfb03c08..5ed1723506 100644
--- a/thirdparty/freetype/src/otvalid/otvcommn.c
+++ b/thirdparty/freetype/src/otvalid/otvcommn.c
@@ -1,32 +1,32 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvcommn.c                                                             */
-/*                                                                         */
-/*    OpenType common tables validation (body).                            */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvcommn.c
+ *
+ *   OpenType common tables validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvcommon
+#define FT_COMPONENT  otvcommon
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/otvalid/otvcommn.h b/thirdparty/freetype/src/otvalid/otvcommn.h
index a392784cf1..bfcc5b974a 100644
--- a/thirdparty/freetype/src/otvalid/otvcommn.h
+++ b/thirdparty/freetype/src/otvalid/otvcommn.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvcommn.h                                                             */
-/*                                                                         */
-/*    OpenType common tables validation (specification).                   */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvcommn.h
+ *
+ *   OpenType common tables validation (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef OTVCOMMN_H_
diff --git a/thirdparty/freetype/src/otvalid/otverror.h b/thirdparty/freetype/src/otvalid/otverror.h
index 2fcf42e387..a7d35acf1a 100644
--- a/thirdparty/freetype/src/otvalid/otverror.h
+++ b/thirdparty/freetype/src/otvalid/otverror.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otverror.h                                                             */
-/*                                                                         */
-/*    OpenType validation module error codes (specification only).         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the OpenType validation module error      */
-  /* enumeration constants.                                                */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * otverror.h
+ *
+ *   OpenType validation module error codes (specification only).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the OpenType validation module error
+   * enumeration constants.
+   *
+   */
 
 #ifndef OTVERROR_H_
 #define OTVERROR_H_
diff --git a/thirdparty/freetype/src/otvalid/otvgdef.c b/thirdparty/freetype/src/otvalid/otvgdef.c
index 08f3171541..2529b544d2 100644
--- a/thirdparty/freetype/src/otvalid/otvgdef.c
+++ b/thirdparty/freetype/src/otvalid/otvgdef.c
@@ -1,33 +1,33 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvgdef.c                                                              */
-/*                                                                         */
-/*    OpenType GDEF table validation (body).                               */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvgdef.c
+ *
+ *   OpenType GDEF table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvalid.h"
 #include "otvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvgdef
+#define FT_COMPONENT  otvgdef
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/otvalid/otvgpos.c b/thirdparty/freetype/src/otvalid/otvgpos.c
index 696b35cae6..f3bddeac6c 100644
--- a/thirdparty/freetype/src/otvalid/otvgpos.c
+++ b/thirdparty/freetype/src/otvalid/otvgpos.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvgpos.c                                                              */
-/*                                                                         */
-/*    OpenType GPOS table validation (body).                               */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvgpos.c
+ *
+ *   OpenType GPOS table validation (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvalid.h"
@@ -21,14 +21,14 @@
 #include "otvgpos.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvgpos
+#define FT_COMPONENT  otvgpos
 
 
   static void
diff --git a/thirdparty/freetype/src/otvalid/otvgpos.h b/thirdparty/freetype/src/otvalid/otvgpos.h
index 95f9ac3ee8..b3154312eb 100644
--- a/thirdparty/freetype/src/otvalid/otvgpos.h
+++ b/thirdparty/freetype/src/otvalid/otvgpos.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvgpos.h                                                              */
-/*                                                                         */
-/*    OpenType GPOS table validator (specification).                       */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvgpos.h
+ *
+ *   OpenType GPOS table validator (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef OTVGPOS_H_
diff --git a/thirdparty/freetype/src/otvalid/otvgsub.c b/thirdparty/freetype/src/otvalid/otvgsub.c
index d35ea67f30..97da997d3d 100644
--- a/thirdparty/freetype/src/otvalid/otvgsub.c
+++ b/thirdparty/freetype/src/otvalid/otvgsub.c
@@ -1,33 +1,33 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvgsub.c                                                              */
-/*                                                                         */
-/*    OpenType GSUB table validation (body).                               */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvgsub.c
+ *
+ *   OpenType GSUB table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvalid.h"
 #include "otvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvgsub
+#define FT_COMPONENT  otvgsub
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/otvalid/otvjstf.c b/thirdparty/freetype/src/otvalid/otvjstf.c
index 94d4af90f6..d4e6d87178 100644
--- a/thirdparty/freetype/src/otvalid/otvjstf.c
+++ b/thirdparty/freetype/src/otvalid/otvjstf.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvjstf.c                                                              */
-/*                                                                         */
-/*    OpenType JSTF table validation (body).                               */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvjstf.c
+ *
+ *   OpenType JSTF table validation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvalid.h"
@@ -21,14 +21,14 @@
 #include "otvgpos.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvjstf
+#define FT_COMPONENT  otvjstf
 
 
 #define JstfPriorityFunc  otv_JstfPriority_validate
diff --git a/thirdparty/freetype/src/otvalid/otvmath.c b/thirdparty/freetype/src/otvalid/otvmath.c
index b9800f60a2..3aaf0ec0ec 100644
--- a/thirdparty/freetype/src/otvalid/otvmath.c
+++ b/thirdparty/freetype/src/otvalid/otvmath.c
@@ -1,21 +1,21 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvmath.c                                                              */
-/*                                                                         */
-/*    OpenType MATH table validation (body).                               */
-/*                                                                         */
-/*  Copyright 2007-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  Written by George Williams.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvmath.c
+ *
+ *   OpenType MATH table validation (body).
+ *
+ * Copyright (C) 2007-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by George Williams.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "otvalid.h"
@@ -23,14 +23,14 @@
 #include "otvgpos.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvmath
+#define FT_COMPONENT  otvmath
 
 
 
diff --git a/thirdparty/freetype/src/otvalid/otvmod.c b/thirdparty/freetype/src/otvalid/otvmod.c
index 89ee449d16..f417bd220f 100644
--- a/thirdparty/freetype/src/otvalid/otvmod.c
+++ b/thirdparty/freetype/src/otvalid/otvmod.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvmod.c                                                               */
-/*                                                                         */
-/*    FreeType's OpenType validation module implementation (body).         */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvmod.c
+ *
+ *   FreeType's OpenType validation module implementation (body).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -28,14 +28,14 @@
 #include "otvcommn.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_otvmodule
+#define FT_COMPONENT  otvmodule
 
 
   static FT_Error
diff --git a/thirdparty/freetype/src/otvalid/otvmod.h b/thirdparty/freetype/src/otvalid/otvmod.h
index 6917bccee5..5539de7ec6 100644
--- a/thirdparty/freetype/src/otvalid/otvmod.h
+++ b/thirdparty/freetype/src/otvalid/otvmod.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  otvmod.h                                                               */
-/*                                                                         */
-/*    FreeType's OpenType validation module implementation                 */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * otvmod.h
+ *
+ *   FreeType's OpenType validation module implementation
+ *   (specification).
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef OTVMOD_H_
@@ -27,10 +27,6 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
 
   FT_EXPORT_VAR( const FT_Module_Class )  otv_module_class;
 
diff --git a/thirdparty/freetype/src/otvalid/rules.mk b/thirdparty/freetype/src/otvalid/rules.mk
index d4fc723740..3c6ece1c19 100644
--- a/thirdparty/freetype/src/otvalid/rules.mk
+++ b/thirdparty/freetype/src/otvalid/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2004-2018 by
+# Copyright (C) 2004-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/pcf/pcf.h b/thirdparty/freetype/src/pcf/pcf.h
index f0390cb1eb..529dd3adf8 100644
--- a/thirdparty/freetype/src/pcf/pcf.h
+++ b/thirdparty/freetype/src/pcf/pcf.h
@@ -104,6 +104,19 @@ FT_BEGIN_HEADER
   } PCF_MetricRec, *PCF_Metric;
 
 
+  typedef struct  PCF_EncRec_
+  {
+    FT_UShort   firstCol;
+    FT_UShort   lastCol;
+    FT_UShort   firstRow;
+    FT_UShort   lastRow;
+    FT_UShort   defaultChar;
+
+    FT_UShort*  offset;
+
+  } PCF_EncRec, *PCF_Enc;
+
+
   typedef struct  PCF_AccelRec_
   {
     FT_Byte        noOverlap;
@@ -124,41 +137,32 @@ FT_BEGIN_HEADER
   } PCF_AccelRec, *PCF_Accel;
 
 
-  typedef struct  PCF_EncodingRec_
-  {
-    FT_Long    enc;
-    FT_UShort  glyph;
-
-  } PCF_EncodingRec, *PCF_Encoding;
-
-
+  /*
+   * This file uses X11 terminology for PCF data; an `encoding' in X11 speak
+   * is the same as a `character code' in FreeType speak.
+   */
   typedef struct  PCF_FaceRec_
   {
-    FT_FaceRec     root;
-
-    FT_StreamRec   comp_stream;
-    FT_Stream      comp_source;
+    FT_FaceRec    root;
 
-    char*          charset_encoding;
-    char*          charset_registry;
+    FT_StreamRec  comp_stream;
+    FT_Stream     comp_source;
 
-    PCF_TocRec     toc;
-    PCF_AccelRec   accel;
+    char*         charset_encoding;
+    char*         charset_registry;
 
-    int            nprops;
-    PCF_Property   properties;
+    PCF_TocRec    toc;
+    PCF_AccelRec  accel;
 
-    FT_ULong       nmetrics;
-    PCF_Metric     metrics;
-    FT_ULong       nencodings;
-    PCF_Encoding   encodings;
+    int           nprops;
+    PCF_Property  properties;
 
-    FT_Short       defaultChar;
+    FT_ULong      nmetrics;
+    PCF_Metric    metrics;
 
-    FT_ULong       bitmapsFormat;
+    PCF_EncRec    enc;
 
-    FT_CharMap     charmap_handle;
-    FT_CharMapRec  charmap;  /* a single charmap per face */
+    FT_ULong      bitmapsFormat;
 
   } PCF_FaceRec, *PCF_Face;
 
diff --git a/thirdparty/freetype/src/pcf/pcfdrivr.c b/thirdparty/freetype/src/pcf/pcfdrivr.c
index 0119d94853..54bbb9d119 100644
--- a/thirdparty/freetype/src/pcf/pcfdrivr.c
+++ b/thirdparty/freetype/src/pcf/pcfdrivr.c
@@ -45,7 +45,7 @@ THE SOFTWARE.
 #include "pcfutil.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pcfread
+#define FT_COMPONENT  pcfread
 
 #include FT_SERVICE_BDF_H
 #include FT_SERVICE_FONT_FORMAT_H
@@ -53,21 +53,24 @@ THE SOFTWARE.
 #include FT_DRIVER_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pcfdriver
+#define FT_COMPONENT  pcfdriver
 
 
+  /*
+   * This file uses X11 terminology for PCF data; an `encoding' in X11 speak
+   * is the same as a `character code' in FreeType speak.
+   */
   typedef struct  PCF_CMapRec_
   {
-    FT_CMapRec    root;
-    FT_ULong      num_encodings;
-    PCF_Encoding  encodings;
+    FT_CMapRec  root;
+    PCF_Enc     enc;
 
   } PCF_CMapRec, *PCF_CMap;
 
@@ -82,8 +85,7 @@ THE SOFTWARE.
     FT_UNUSED( init_data );
 
 
-    cmap->num_encodings = face->nencodings;
-    cmap->encodings     = face->encodings;
+    cmap->enc = &face->enc;
 
     return FT_Err_Ok;
   }
@@ -95,8 +97,7 @@ THE SOFTWARE.
     PCF_CMap  cmap = (PCF_CMap)pcfcmap;
 
 
-    cmap->encodings     = NULL;
-    cmap->num_encodings = 0;
+    cmap->enc = NULL;
   }
 
 
@@ -104,36 +105,26 @@ THE SOFTWARE.
   pcf_cmap_char_index( FT_CMap    pcfcmap,  /* PCF_CMap */
                        FT_UInt32  charcode )
   {
-    PCF_CMap      cmap      = (PCF_CMap)pcfcmap;
-    PCF_Encoding  encodings = cmap->encodings;
-    FT_ULong      min, max, mid;
-    FT_UInt       result    = 0;
+    PCF_CMap   cmap = (PCF_CMap)pcfcmap;
+    PCF_Enc    enc  = cmap->enc;
+    FT_UShort  charcodeRow;
+    FT_UShort  charcodeCol;
 
 
-    min = 0;
-    max = cmap->num_encodings;
+    if ( charcode > (FT_UInt32)( enc->lastRow  * 256 + enc->lastCol  ) ||
+         charcode < (FT_UInt32)( enc->firstRow * 256 + enc->firstCol ) )
+      return 0;
 
-    while ( min < max )
-    {
-      FT_ULong  code;
+    charcodeRow = (FT_UShort)( charcode >> 8 );
+    charcodeCol = (FT_UShort)( charcode & 0xFF );
 
+    if ( charcodeCol < enc->firstCol ||
+         charcodeCol > enc->lastCol  )
+      return 0;
 
-      mid  = ( min + max ) >> 1;
-      code = (FT_ULong)encodings[mid].enc;
-
-      if ( charcode == code )
-      {
-        result = encodings[mid].glyph + 1;
-        break;
-      }
-
-      if ( charcode < code )
-        max = mid;
-      else
-        min = mid + 1;
-    }
-
-    return result;
+    return (FT_UInt)enc->offset[ ( charcodeRow - enc->firstRow ) *
+                                 ( enc->lastCol - enc->firstCol + 1 ) +
+                                   charcodeCol - enc->firstCol          ];
   }
 
 
@@ -141,52 +132,43 @@ THE SOFTWARE.
   pcf_cmap_char_next( FT_CMap    pcfcmap,   /* PCF_CMap */
                       FT_UInt32  *acharcode )
   {
-    PCF_CMap      cmap      = (PCF_CMap)pcfcmap;
-    PCF_Encoding  encodings = cmap->encodings;
-    FT_ULong      min, max, mid;
-    FT_ULong      charcode  = *acharcode + 1;
-    FT_UInt       result    = 0;
-
+    PCF_CMap   cmap      = (PCF_CMap)pcfcmap;
+    PCF_Enc    enc       = cmap->enc;
+    FT_UInt32  charcode  = *acharcode;
+    FT_UShort  charcodeRow;
+    FT_UShort  charcodeCol;
+    FT_Int     result = 0;
 
-    min = 0;
-    max = cmap->num_encodings;
 
-    while ( min < max )
+    while ( charcode < (FT_UInt32)( enc->lastRow * 256 + enc->lastCol ) )
     {
-      FT_ULong  code;
+      charcode++;
 
+      if ( charcode < (FT_UInt32)( enc->firstRow * 256 + enc->firstCol ) )
+        charcode = (FT_UInt32)( enc->firstRow * 256 + enc->firstCol );
 
-      mid  = ( min + max ) >> 1;
-      code = (FT_ULong)encodings[mid].enc;
+      charcodeRow = (FT_UShort)( charcode >> 8 );
+      charcodeCol = (FT_UShort)( charcode & 0xFF );
 
-      if ( charcode == code )
+      if ( charcodeCol < enc->firstCol )
+        charcodeCol = enc->firstCol;
+      else if ( charcodeCol > enc->lastCol )
       {
-        result = encodings[mid].glyph + 1;
-        goto Exit;
+        charcodeRow++;
+        charcodeCol = enc->firstCol;
       }
 
-      if ( charcode < code )
-        max = mid;
-      else
-        min = mid + 1;
-    }
+      charcode = (FT_UInt32)( charcodeRow * 256 + charcodeCol );
 
-    charcode = 0;
-    if ( min < cmap->num_encodings )
-    {
-      charcode = (FT_ULong)encodings[min].enc;
-      result   = encodings[min].glyph + 1;
+      result = (FT_UInt)enc->offset[ ( charcodeRow - enc->firstRow ) *
+                                     ( enc->lastCol - enc->firstCol + 1 ) +
+                                       charcodeCol - enc->firstCol          ];
+      if ( result != 0xFFFFU )
+        break;
     }
 
-  Exit:
-    if ( charcode > 0xFFFFFFFFUL )
-    {
-      FT_TRACE1(( "pcf_cmap_char_next: charcode 0x%x > 32bit API" ));
-      *acharcode = 0;
-      /* XXX: result should be changed to indicate an overflow error */
-    }
-    else
-      *acharcode = (FT_UInt32)charcode;
+    *acharcode = charcode;
+
     return result;
   }
 
@@ -216,8 +198,8 @@ THE SOFTWARE.
 
     memory = FT_FACE_MEMORY( face );
 
-    FT_FREE( face->encodings );
     FT_FREE( face->metrics );
+    FT_FREE( face->enc.offset );
 
     /* free properties */
     if ( face->properties )
@@ -512,9 +494,6 @@ THE SOFTWARE.
 
     stream = face->root.stream;
 
-    if ( glyph_index > 0 )
-      glyph_index--;
-
     metric = face->metrics + glyph_index;
 
     bitmap->rows       = (unsigned int)( metric->ascent +
@@ -601,11 +580,11 @@ THE SOFTWARE.
   }
 
 
- /*
-  *
-  *  BDF SERVICE
-  *
-  */
+  /*
+   *
+   * BDF SERVICE
+   *
+   */
 
   static FT_Error
   pcf_get_bdf_property( PCF_Face          face,
@@ -633,9 +612,9 @@ THE SOFTWARE.
         }
 
         /*
-         *  The PCF driver loads all properties as signed integers.
-         *  This really doesn't seem to be a problem, because this is
-         *  sufficient for any meaningful values.
+         * The PCF driver loads all properties as signed integers.
+         * This really doesn't seem to be a problem, because this is
+         * sufficient for any meaningful values.
          */
         aproperty->type      = BDF_PROPERTY_TYPE_INTEGER;
         aproperty->u.integer = (FT_Int32)prop->value.l;
@@ -668,7 +647,7 @@ THE SOFTWARE.
 
 
   /*
-   *  PROPERTY SERVICE
+   * PROPERTY SERVICE
    *
    */
   static FT_Error
@@ -777,11 +756,11 @@ THE SOFTWARE.
     (FT_Properties_GetFunc)pcf_property_get )     /* get_property */
 
 
- /*
-  *
-  *  SERVICE LIST
-  *
-  */
+  /*
+   *
+   * SERVICE LIST
+   *
+   */
 
   static const FT_ServiceDescRec  pcf_services[] =
   {
diff --git a/thirdparty/freetype/src/pcf/pcfdrivr.h b/thirdparty/freetype/src/pcf/pcfdrivr.h
index 29d30497cd..73db0823d2 100644
--- a/thirdparty/freetype/src/pcf/pcfdrivr.h
+++ b/thirdparty/freetype/src/pcf/pcfdrivr.h
@@ -31,11 +31,8 @@ THE SOFTWARE.
 #include <ft2build.h>
 #include FT_INTERNAL_DRIVER_H
 
-FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
+FT_BEGIN_HEADER
 
   FT_EXPORT_VAR( const FT_Driver_ClassRec )  pcf_driver_class;
 
diff --git a/thirdparty/freetype/src/pcf/pcferror.h b/thirdparty/freetype/src/pcf/pcferror.h
index add8ef2230..2e69d1d219 100644
--- a/thirdparty/freetype/src/pcf/pcferror.h
+++ b/thirdparty/freetype/src/pcf/pcferror.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pcferror.h                                                             */
-/*                                                                         */
-/*    PCF error codes (specification only).                                */
-/*                                                                         */
-/*  Copyright 2001, 2012 by                                                */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the PCF error enumeration constants.      */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * pcferror.h
+ *
+ *   PCF error codes (specification only).
+ *
+ * Copyright 2001, 2012 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the PCF error enumeration constants.
+   *
+   */
 
 #ifndef PCFERROR_H_
 #define PCFERROR_H_
diff --git a/thirdparty/freetype/src/pcf/pcfread.c b/thirdparty/freetype/src/pcf/pcfread.c
index 537da0dc79..71143ecfb5 100644
--- a/thirdparty/freetype/src/pcf/pcfread.c
+++ b/thirdparty/freetype/src/pcf/pcfread.c
@@ -37,14 +37,14 @@ THE SOFTWARE.
 #include "pcferror.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pcfread
+#define FT_COMPONENT  pcfread
 
 
 #ifdef FT_DEBUG_LEVEL_TRACE
@@ -178,23 +178,23 @@ THE SOFTWARE.
     }
 
     /*
-     *  We now check whether the `size' and `offset' values are reasonable:
-     *  `offset' + `size' must not exceed the stream size.
+     * We now check whether the `size' and `offset' values are reasonable:
+     * `offset' + `size' must not exceed the stream size.
      *
-     *  Note, however, that X11's `pcfWriteFont' routine (used by the
-     *  `bdftopcf' program to create PDF font files) has two special
-     *  features.
+     * Note, however, that X11's `pcfWriteFont' routine (used by the
+     * `bdftopcf' program to create PCF font files) has two special
+     * features.
      *
-     *  - It always assigns the accelerator table a size of 100 bytes in the
-     *    TOC, regardless of its real size, which can vary between 34 and 72
-     *    bytes.
+     * - It always assigns the accelerator table a size of 100 bytes in the
+     *   TOC, regardless of its real size, which can vary between 34 and 72
+     *   bytes.
      *
-     *  - Due to the way the routine is designed, it ships out the last font
-     *    table with its real size, ignoring the TOC's size value.  Since
-     *    the TOC size values are always rounded up to a multiple of 4, the
-     *    difference can be up to three bytes for all tables except the
-     *    accelerator table, for which the difference can be as large as 66
-     *    bytes.
+     * - Due to the way the routine is designed, it ships out the last font
+     *   table with its real size, ignoring the TOC's size value.  Since
+     *   the TOC size values are always rounded up to a multiple of 4, the
+     *   difference can be up to three bytes for all tables except the
+     *   accelerator table, for which the difference can be as large as 66
+     *   bytes.
      *
      */
 
@@ -810,8 +810,8 @@ THE SOFTWARE.
   {
     FT_Error   error;
     FT_Memory  memory  = FT_FACE( face )->memory;
-    FT_Long*   offsets = NULL;
-    FT_Long    bitmapSizes[GLYPHPADOPTIONS];
+    FT_ULong*  offsets = NULL;
+    FT_ULong   bitmapSizes[GLYPHPADOPTIONS];
     FT_ULong   format, size;
     FT_ULong   nbitmaps, orig_nbitmaps, i, sizebitmaps = 0;
 
@@ -878,11 +878,11 @@ THE SOFTWARE.
     for ( i = 0; i < nbitmaps; i++ )
     {
       if ( PCF_BYTE_ORDER( format ) == MSBFirst )
-        (void)FT_READ_LONG( offsets[i] );
+        (void)FT_READ_ULONG( offsets[i] );
       else
-        (void)FT_READ_LONG_LE( offsets[i] );
+        (void)FT_READ_ULONG_LE( offsets[i] );
 
-      FT_TRACE5(( "  bitmap %ld: offset %ld (0x%lX)\n",
+      FT_TRACE5(( "  bitmap %lu: offset %lu (0x%lX)\n",
                   i, offsets[i], offsets[i] ));
     }
     if ( error )
@@ -891,22 +891,22 @@ THE SOFTWARE.
     for ( i = 0; i < GLYPHPADOPTIONS; i++ )
     {
       if ( PCF_BYTE_ORDER( format ) == MSBFirst )
-        (void)FT_READ_LONG( bitmapSizes[i] );
+        (void)FT_READ_ULONG( bitmapSizes[i] );
       else
-        (void)FT_READ_LONG_LE( bitmapSizes[i] );
+        (void)FT_READ_ULONG_LE( bitmapSizes[i] );
       if ( error )
         goto Bail;
 
-      sizebitmaps = (FT_ULong)bitmapSizes[PCF_GLYPH_PAD_INDEX( format )];
+      sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX( format )];
 
-      FT_TRACE4(( "  %ld-bit padding implies a size of %ld\n",
+      FT_TRACE4(( "  %ld-bit padding implies a size of %lu\n",
                   8 << i, bitmapSizes[i] ));
     }
 
-    FT_TRACE4(( "  %ld bitmaps, using %ld-bit padding\n",
+    FT_TRACE4(( "  %lu bitmaps, using %ld-bit padding\n",
                 nbitmaps,
                 8 << PCF_GLYPH_PAD_INDEX( format ) ));
-    FT_TRACE4(( "  bitmap size: %ld\n", sizebitmaps ));
+    FT_TRACE4(( "  bitmap size: %lu\n", sizebitmaps ));
 
     FT_UNUSED( sizebitmaps );       /* only used for debugging */
 
@@ -915,14 +915,13 @@ THE SOFTWARE.
     for ( i = 0; i < nbitmaps; i++ )
     {
       /* rough estimate */
-      if ( ( offsets[i] < 0 )              ||
-           ( (FT_ULong)offsets[i] > size ) )
+      if ( offsets[i] > size )
       {
         FT_TRACE0(( "pcf_get_bitmaps:"
-                    " invalid offset to bitmap data of glyph %ld\n", i ));
+                    " invalid offset to bitmap data of glyph %lu\n", i ));
       }
       else
-        face->metrics[i].bits = stream->pos + (FT_ULong)offsets[i];
+        face->metrics[i].bits = stream->pos + offsets[i];
     }
 
     face->bitmapsFormat = format;
@@ -933,20 +932,58 @@ THE SOFTWARE.
   }
 
 
+  /*
+   * This file uses X11 terminology for PCF data; an `encoding' in X11 speak
+   * is the same as a character code in FreeType speak.
+   */
+#define PCF_ENC_SIZE  10
+
+  static
+  const FT_Frame_Field  pcf_enc_header[] =
+  {
+#undef  FT_STRUCTURE
+#define FT_STRUCTURE  PCF_EncRec
+
+    FT_FRAME_START( PCF_ENC_SIZE ),
+      FT_FRAME_USHORT_LE( firstCol ),
+      FT_FRAME_USHORT_LE( lastCol ),
+      FT_FRAME_USHORT_LE( firstRow ),
+      FT_FRAME_USHORT_LE( lastRow ),
+      FT_FRAME_USHORT_LE( defaultChar ),
+    FT_FRAME_END
+  };
+
+
+  static
+  const FT_Frame_Field  pcf_enc_msb_header[] =
+  {
+#undef  FT_STRUCTURE
+#define FT_STRUCTURE  PCF_EncRec
+
+    FT_FRAME_START( PCF_ENC_SIZE ),
+      FT_FRAME_USHORT( firstCol ),
+      FT_FRAME_USHORT( lastCol ),
+      FT_FRAME_USHORT( firstRow ),
+      FT_FRAME_USHORT( lastRow ),
+      FT_FRAME_USHORT( defaultChar ),
+    FT_FRAME_END
+  };
+
+
   static FT_Error
   pcf_get_encodings( FT_Stream  stream,
                      PCF_Face   face )
   {
-    FT_Error      error;
-    FT_Memory     memory = FT_FACE( face )->memory;
-    FT_ULong      format, size;
-    int           firstCol, lastCol;
-    int           firstRow, lastRow;
-    FT_ULong      nencoding;
-    FT_UShort     encodingOffset;
-    int           i, j;
-    FT_ULong      k;
-    PCF_Encoding  encoding = NULL;
+    FT_Error    error;
+    FT_Memory   memory = FT_FACE( face )->memory;
+    FT_ULong    format, size;
+    PCF_Enc     enc = &face->enc;
+    FT_ULong    nencoding;
+    FT_UShort*  offset;
+    FT_UShort   defaultCharRow, defaultCharCol;
+    FT_UShort   encodingOffset, defaultCharEncodingOffset;
+    FT_UShort   i, j;
+    FT_Byte*    pos;
 
 
     error = pcf_seek_to_table_type( stream,
@@ -956,75 +993,118 @@ THE SOFTWARE.
                                     &format,
                                     &size );
     if ( error )
-      return error;
+      goto Bail;
 
-    error = FT_Stream_EnterFrame( stream, 14 );
-    if ( error )
-      return error;
+    if ( FT_READ_ULONG_LE( format ) )
+      goto Bail;
 
-    format = FT_GET_ULONG_LE();
+    FT_TRACE4(( "pcf_get_encodings:\n"
+                "  format: 0x%lX (%s)\n",
+                format,
+                PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB" ));
+
+    if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) &&
+         !PCF_FORMAT_MATCH( format, PCF_BDF_ENCODINGS )  )
+      return FT_THROW( Invalid_File_Format );
 
     if ( PCF_BYTE_ORDER( format ) == MSBFirst )
     {
-      firstCol          = FT_GET_SHORT();
-      lastCol           = FT_GET_SHORT();
-      firstRow          = FT_GET_SHORT();
-      lastRow           = FT_GET_SHORT();
-      face->defaultChar = FT_GET_SHORT();
+      if ( FT_STREAM_READ_FIELDS( pcf_enc_msb_header, enc ) )
+        goto Bail;
     }
     else
     {
-      firstCol          = FT_GET_SHORT_LE();
-      lastCol           = FT_GET_SHORT_LE();
-      firstRow          = FT_GET_SHORT_LE();
-      lastRow           = FT_GET_SHORT_LE();
-      face->defaultChar = FT_GET_SHORT_LE();
+      if ( FT_STREAM_READ_FIELDS( pcf_enc_header, enc ) )
+        goto Bail;
     }
 
-    FT_Stream_ExitFrame( stream );
-
-    FT_TRACE4(( "pcf_get_encodings:\n"
-                "  format: 0x%lX (%s)\n",
-                format,
-                PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB" ));
-
-    if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
-      return FT_THROW( Invalid_File_Format );
-
     FT_TRACE4(( "  firstCol 0x%X, lastCol 0x%X\n"
-                "  firstRow 0x%X, lastRow 0x%X\n",
-                firstCol, lastCol,
-                firstRow, lastRow ));
+                "  firstRow 0x%X, lastRow 0x%X\n"
+                "  defaultChar 0x%X\n",
+                enc->firstCol, enc->lastCol,
+                enc->firstRow, enc->lastRow,
+                enc->defaultChar ));
 
     /* sanity checks; we limit numbers of rows and columns to 256 */
-    if ( firstCol < 0       ||
-         firstCol > lastCol ||
-         lastCol  > 0xFF    ||
-         firstRow < 0       ||
-         firstRow > lastRow ||
-         lastRow  > 0xFF    )
+    if ( enc->firstCol > enc->lastCol ||
+         enc->lastCol  > 0xFF         ||
+         enc->firstRow > enc->lastRow ||
+         enc->lastRow  > 0xFF         )
       return FT_THROW( Invalid_Table );
 
-    nencoding = (FT_ULong)( lastCol - firstCol + 1 ) *
-                (FT_ULong)( lastRow - firstRow + 1 );
+    nencoding = (FT_ULong)( enc->lastCol - enc->firstCol + 1 ) *
+                (FT_ULong)( enc->lastRow - enc->firstRow + 1 );
 
-    if ( FT_NEW_ARRAY( encoding, nencoding ) )
-      return error;
+    if ( FT_NEW_ARRAY( enc->offset, nencoding ) )
+      goto Bail;
 
     error = FT_Stream_EnterFrame( stream, 2 * nencoding );
     if ( error )
-      goto Bail;
+      goto Exit;
 
     FT_TRACE5(( "\n" ));
 
-    k = 0;
-    for ( i = firstRow; i <= lastRow; i++ )
+    defaultCharRow = enc->defaultChar >> 8;
+    defaultCharCol = enc->defaultChar & 0xFF;
+
+    /* validate default character */
+    if ( defaultCharRow < enc->firstRow ||
+         defaultCharRow > enc->lastRow  ||
+         defaultCharCol < enc->firstCol ||
+         defaultCharCol > enc->lastCol  )
+    {
+      enc->defaultChar = enc->firstRow * 256U + enc->firstCol;
+      FT_TRACE0(( "pcf_get_encodings:"
+                  " Invalid default character set to %u\n",
+                  enc->defaultChar ));
+
+      defaultCharRow = enc->firstRow;
+      defaultCharCol = enc->firstCol;
+    }
+
+    /* FreeType mandates that glyph index 0 is the `undefined glyph',  */
+    /* which PCF calls the `default character'.  For this reason, we   */
+    /* swap the positions of glyph index 0 and the index corresponding */
+    /* to `defaultChar' in case they are different.                    */
+
+    /* `stream->cursor' still points at the beginning of the frame; */
+    /* we can thus easily get the offset to the default character   */
+    pos = stream->cursor +
+            2 * ( ( defaultCharRow - enc->firstRow ) *
+                  ( enc->lastCol - enc->firstCol + 1 ) +
+                    defaultCharCol - enc->firstCol       );
+
+    if ( PCF_BYTE_ORDER( format ) == MSBFirst )
+      defaultCharEncodingOffset = FT_PEEK_USHORT( pos );
+    else
+      defaultCharEncodingOffset = FT_PEEK_USHORT_LE( pos );
+
+    if ( defaultCharEncodingOffset >= face->nmetrics )
+    {
+      FT_TRACE0(( "pcf_get_encodings:"
+                  " Invalid glyph index for default character,"
+                  " setting to zero\n" ));
+      defaultCharEncodingOffset = 0;
+    }
+
+    if ( defaultCharEncodingOffset )
+    {
+      /* do the swapping */
+      PCF_MetricRec  tmp = face->metrics[defaultCharEncodingOffset];
+
+
+      face->metrics[defaultCharEncodingOffset] = face->metrics[0];
+      face->metrics[0]                         = tmp;
+    }
+
+    offset = enc->offset;
+    for ( i = enc->firstRow; i <= enc->lastRow; i++ )
     {
-      for ( j = firstCol; j <= lastCol; j++ )
+      for ( j = enc->firstCol; j <= enc->lastCol; j++ )
       {
         /* X11's reference implementation uses the equivalent to  */
         /* `FT_GET_SHORT', however PCF fonts with more than 32768 */
-        /* characters (e.g. `unifont.pcf') clearly show that an   */
+        /* characters (e.g., `unifont.pcf') clearly show that an  */
         /* unsigned value is needed.                              */
         if ( PCF_BYTE_ORDER( format ) == MSBFirst )
           encodingOffset = FT_GET_USHORT();
@@ -1033,28 +1113,23 @@ THE SOFTWARE.
 
         if ( encodingOffset != 0xFFFFU )
         {
-          encoding[k].enc   = i * 256 + j;
-          encoding[k].glyph = encodingOffset;
-
-          FT_TRACE5(( "  code %d (0x%04X): idx %d\n",
-                      encoding[k].enc, encoding[k].enc, encoding[k].glyph ));
-
-          k++;
+          if ( encodingOffset == defaultCharEncodingOffset )
+            encodingOffset = 0;
+          else if ( encodingOffset == 0 )
+            encodingOffset = defaultCharEncodingOffset;
         }
+
+        *offset++ = encodingOffset;
       }
     }
     FT_Stream_ExitFrame( stream );
 
-    if ( FT_RENEW_ARRAY( encoding, nencoding, k ) )
-      goto Bail;
-
-    face->nencodings = k;
-    face->encodings  = encoding;
-
     return error;
 
+  Exit:
+    FT_FREE( enc->offset );
+
   Bail:
-    FT_FREE( encoding );
     return error;
   }
 
@@ -1397,8 +1472,7 @@ THE SOFTWARE.
 
 
       root->face_flags |= FT_FACE_FLAG_FIXED_SIZES |
-                          FT_FACE_FLAG_HORIZONTAL  |
-                          FT_FACE_FLAG_FAST_GLYPHS;
+                          FT_FACE_FLAG_HORIZONTAL;
 
       if ( face->accel.constantWidth )
         root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
@@ -1482,14 +1556,7 @@ THE SOFTWARE.
       else
         root->family_name = NULL;
 
-      /*
-       * Note: We shift all glyph indices by +1 since we must
-       * respect the convention that glyph 0 always corresponds
-       * to the `missing glyph'.
-       *
-       * This implies bumping the number of `available' glyphs by 1.
-       */
-      root->num_glyphs = (FT_Long)( face->nmetrics + 1 );
+      root->num_glyphs = (FT_Long)face->nmetrics;
 
       root->num_fixed_sizes = 1;
       if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
diff --git a/thirdparty/freetype/src/pcf/pcfutil.c b/thirdparty/freetype/src/pcf/pcfutil.c
index 0451ee8def..045c42d60f 100644
--- a/thirdparty/freetype/src/pcf/pcfutil.c
+++ b/thirdparty/freetype/src/pcf/pcfutil.c
@@ -37,7 +37,7 @@ in this Software without prior written authorization from The Open Group.
 
 
   /*
-   *  Invert bit order within each BYTE of an array.
+   * Invert bit order within each BYTE of an array.
    */
 
   FT_LOCAL_DEF( void )
@@ -59,7 +59,7 @@ in this Software without prior written authorization from The Open Group.
 
 
   /*
-   *  Invert byte order within each 16-bits of an array.
+   * Invert byte order within each 16-bits of an array.
    */
 
   FT_LOCAL_DEF( void )
@@ -78,7 +78,7 @@ in this Software without prior written authorization from The Open Group.
   }
 
   /*
-   *  Invert byte order within each 32-bits of an array.
+   * Invert byte order within each 32-bits of an array.
    */
 
   FT_LOCAL_DEF( void )
diff --git a/thirdparty/freetype/src/pfr/module.mk b/thirdparty/freetype/src/pfr/module.mk
index 27fec8e5f6..30d876d4c8 100644
--- a/thirdparty/freetype/src/pfr/module.mk
+++ b/thirdparty/freetype/src/pfr/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2002-2018 by
+# Copyright (C) 2002-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/pfr/pfr.c b/thirdparty/freetype/src/pfr/pfr.c
index 1760882fcd..6d885ea47f 100644
--- a/thirdparty/freetype/src/pfr/pfr.c
+++ b/thirdparty/freetype/src/pfr/pfr.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfr.c                                                                  */
-/*                                                                         */
-/*    FreeType PFR driver component.                                       */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfr.c
+ *
+ *   FreeType PFR driver component.
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/pfr/pfrcmap.c b/thirdparty/freetype/src/pfr/pfrcmap.c
index 60643780a1..bfa1b9ea05 100644
--- a/thirdparty/freetype/src/pfr/pfrcmap.c
+++ b/thirdparty/freetype/src/pfr/pfrcmap.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrcmap.c                                                              */
-/*                                                                         */
-/*    FreeType PFR cmap handling (body).                                   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrcmap.c
+ *
+ *   FreeType PFR cmap handling (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/pfr/pfrcmap.h b/thirdparty/freetype/src/pfr/pfrcmap.h
index c70a0c83c5..1e203a0514 100644
--- a/thirdparty/freetype/src/pfr/pfrcmap.h
+++ b/thirdparty/freetype/src/pfr/pfrcmap.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrcmap.h                                                              */
-/*                                                                         */
-/*    FreeType PFR cmap handling (specification).                          */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrcmap.h
+ *
+ *   FreeType PFR cmap handling (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFRCMAP_H_
diff --git a/thirdparty/freetype/src/pfr/pfrdrivr.c b/thirdparty/freetype/src/pfr/pfrdrivr.c
index 6c7e50128a..f67eebf118 100644
--- a/thirdparty/freetype/src/pfr/pfrdrivr.c
+++ b/thirdparty/freetype/src/pfr/pfrdrivr.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrdrivr.c                                                             */
-/*                                                                         */
-/*    FreeType PFR driver interface (body).                                */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrdrivr.c
+ *
+ *   FreeType PFR driver interface (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -57,10 +57,10 @@
   }
 
 
- /*
-  *  PFR METRICS SERVICE
-  *
-  */
+  /*
+   * PFR METRICS SERVICE
+   *
+   */
 
   FT_CALLBACK_DEF( FT_Error )
   pfr_get_advance( FT_Face   pfrface,       /* PFR_Face */
@@ -145,10 +145,10 @@
   };
 
 
- /*
-  *  SERVICE LIST
-  *
-  */
+  /*
+   * SERVICE LIST
+   *
+   */
 
   static const FT_ServiceDescRec  pfr_services[] =
   {
diff --git a/thirdparty/freetype/src/pfr/pfrdrivr.h b/thirdparty/freetype/src/pfr/pfrdrivr.h
index cab852789b..33b7b9413f 100644
--- a/thirdparty/freetype/src/pfr/pfrdrivr.h
+++ b/thirdparty/freetype/src/pfr/pfrdrivr.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrdrivr.h                                                             */
-/*                                                                         */
-/*    High-level Type PFR driver interface (specification).                */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrdrivr.h
+ *
+ *   High-level Type PFR driver interface (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFRDRIVR_H_
@@ -26,14 +26,8 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
-
   FT_EXPORT_VAR( const FT_Driver_ClassRec )  pfr_driver_class;
 
-
 FT_END_HEADER
 
 
diff --git a/thirdparty/freetype/src/pfr/pfrerror.h b/thirdparty/freetype/src/pfr/pfrerror.h
index 7027c818e8..4829cfc000 100644
--- a/thirdparty/freetype/src/pfr/pfrerror.h
+++ b/thirdparty/freetype/src/pfr/pfrerror.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrerror.h                                                             */
-/*                                                                         */
-/*    PFR error codes (specification only).                                */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the PFR error enumeration constants.      */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * pfrerror.h
+ *
+ *   PFR error codes (specification only).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the PFR error enumeration constants.
+   *
+   */
 
 #ifndef PFRERROR_H_
 #define PFRERROR_H_
diff --git a/thirdparty/freetype/src/pfr/pfrgload.c b/thirdparty/freetype/src/pfr/pfrgload.c
index b7990196b6..6ef5856a8d 100644
--- a/thirdparty/freetype/src/pfr/pfrgload.c
+++ b/thirdparty/freetype/src/pfr/pfrgload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrgload.c                                                             */
-/*                                                                         */
-/*    FreeType PFR glyph loader (body).                                    */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrgload.c
+ *
+ *   FreeType PFR glyph loader (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "pfrgload.h"
@@ -24,7 +24,7 @@
 #include "pfrerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pfr
+#define FT_COMPONENT  pfr
 
 
   /*************************************************************************/
@@ -359,9 +359,9 @@
         FT_UInt  format, format_low, args_format = 0, args_count, n;
 
 
-        /***************************************************************/
-        /*  read instruction                                           */
-        /*                                                             */
+        /****************************************************************
+         * read instruction
+         */
         PFR_CHECK( 1 );
         format     = PFR_NEXT_BYTE( p );
         format_low = format & 15;
@@ -426,9 +426,9 @@
           args_format = format_low;
         }
 
-        /***********************************************************/
-        /*  now read arguments                                     */
-        /*                                                         */
+        /************************************************************
+         * now read arguments
+         */
         cur = pos;
         for ( n = 0; n < args_count; n++ )
         {
@@ -513,9 +513,9 @@
 
         FT_TRACE7(( "\n" ));
 
-        /***********************************************************/
-        /*  finally, execute instruction                           */
-        /*                                                         */
+        /************************************************************
+         * finally, execute instruction
+         */
         switch ( format >> 4 )
         {
         case 0:                                       /* end glyph => EXIT */
diff --git a/thirdparty/freetype/src/pfr/pfrgload.h b/thirdparty/freetype/src/pfr/pfrgload.h
index 01f48d7706..d0e1420b67 100644
--- a/thirdparty/freetype/src/pfr/pfrgload.h
+++ b/thirdparty/freetype/src/pfr/pfrgload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrgload.h                                                             */
-/*                                                                         */
-/*    FreeType PFR glyph loader (specification).                           */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrgload.h
+ *
+ *   FreeType PFR glyph loader (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFRGLOAD_H_
diff --git a/thirdparty/freetype/src/pfr/pfrload.c b/thirdparty/freetype/src/pfr/pfrload.c
index 2776da462a..ccf0b7e1f8 100644
--- a/thirdparty/freetype/src/pfr/pfrload.c
+++ b/thirdparty/freetype/src/pfr/pfrload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrload.c                                                              */
-/*                                                                         */
-/*    FreeType PFR loader (body).                                          */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrload.c
+ *
+ *   FreeType PFR loader (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "pfrload.h"
@@ -23,92 +23,92 @@
 #include "pfrerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pfr
+#define FT_COMPONENT  pfr
 
 
   /*
-   *  The overall structure of a PFR file is as follows.
+   * The overall structure of a PFR file is as follows.
    *
-   *    PFR header
-   *      58 bytes (contains nPhysFonts)
+   *   PFR header
+   *     58 bytes (contains nPhysFonts)
    *
-   *    Logical font directory (size at most 2^16 bytes)
-   *      2 bytes (nLogFonts)
-   *      + nLogFonts * 5 bytes
+   *   Logical font directory (size at most 2^16 bytes)
+   *     2 bytes (nLogFonts)
+   *     + nLogFonts * 5 bytes
    *
-   *         ==>   nLogFonts <= 13106
+   *        ==>  nLogFonts <= 13106
    *
-   *    Logical font section (size at most 2^24 bytes)
-   *      nLogFonts * logFontRecord
+   *   Logical font section (size at most 2^24 bytes)
+   *     nLogFonts * logFontRecord
    *
-   *      logFontRecord (size at most 2^16 bytes)
-   *        12 bytes (fontMatrix)
-   *        + 1 byte (flags)
-   *        + 0-5 bytes (depending on `flags')
-   *        + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
-   *        + 5 bytes (physical font info)
-   *        + 0-1 bytes (depending on PFR header)
+   *     logFontRecord (size at most 2^16 bytes)
+   *       12 bytes (fontMatrix)
+   *       + 1 byte (flags)
+   *       + 0-5 bytes (depending on `flags')
+   *       + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
+   *       + 5 bytes (physical font info)
+   *       + 0-1 bytes (depending on PFR header)
    *
-   *         ==>   minimum size 18 bytes
+   *        ==>  minimum size 18 bytes
    *
-   *    Physical font section (size at most 2^24 bytes)
-   *      nPhysFonts * (physFontRecord
-   *                    + nBitmapSizes * nBmapChars * bmapCharRecord)
+   *   Physical font section (size at most 2^24 bytes)
+   *     nPhysFonts * (physFontRecord
+   *                   + nBitmapSizes * nBmapChars * bmapCharRecord)
    *
-   *      physFontRecord (size at most 2^24 bytes)
-   *        14 bytes (font info)
-   *        + 1 byte (flags)
-   *        + 0-2 (depending on `flags')
-   *        + 0-? (structure too complicated to be shown here; depending on
-   *               `flags'; contains `nBitmapSizes' and `nBmapChars')
-   *        + 3 bytes (nAuxBytes)
-   *        + nAuxBytes
-   *        + 1 byte (nBlueValues)
-   *        + 2 * nBlueValues
-   *        + 6 bytes (hinting data)
-   *        + 2 bytes (nCharacters)
-   *        + nCharacters * (4-10 bytes) (depending on `flags')
+   *     physFontRecord (size at most 2^24 bytes)
+   *       14 bytes (font info)
+   *       + 1 byte (flags)
+   *       + 0-2 (depending on `flags')
+   *       + 0-? (structure too complicated to be shown here; depending on
+   *              `flags'; contains `nBitmapSizes' and `nBmapChars')
+   *       + 3 bytes (nAuxBytes)
+   *       + nAuxBytes
+   *       + 1 byte (nBlueValues)
+   *       + 2 * nBlueValues
+   *       + 6 bytes (hinting data)
+   *       + 2 bytes (nCharacters)
+   *       + nCharacters * (4-10 bytes) (depending on `flags')
    *
-   *         ==>   minimum size 27 bytes
+   *        ==>  minimum size 27 bytes
    *
-   *      bmapCharRecord
-   *        4-7 bytes
+   *     bmapCharRecord
+   *       4-7 bytes
    *
-   *    Glyph program strings (three possible types: simpleGps, compoundGps,
-   *                           and bitmapGps; size at most 2^24 bytes)
-   *      simpleGps (size at most 2^16 bytes)
-   *        1 byte (flags)
-   *        1-2 bytes (n[XY]orus, depending on `flags')
-   *        0-(64+512*2) = 0-1088 bytes (depending on `n[XY]orus')
-   *        0-? (structure too complicated to be shown here; depending on
-   *             `flags')
-   *        1-? glyph data (faintly resembling PS Type 1 charstrings)
+   *   Glyph program strings (three possible types: simpleGps, compoundGps,
+   *                          and bitmapGps; size at most 2^24 bytes)
+   *     simpleGps (size at most 2^16 bytes)
+   *       1 byte (flags)
+   *       1-2 bytes (n[XY]orus, depending on `flags')
+   *       0-(64+512*2) = 0-1088 bytes (depending on `n[XY]orus')
+   *       0-? (structure too complicated to be shown here; depending on
+   *            `flags')
+   *       1-? glyph data (faintly resembling PS Type 1 charstrings)
    *
-   *         ==>   minimum size 3 bytes
+   *        ==>  minimum size 3 bytes
    *
-   *      compoundGps (size at most 2^16 bytes)
-   *        1 byte (nElements <= 63, flags)
-   *        + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
-   *        + nElements * (6-14 bytes)
+   *     compoundGps (size at most 2^16 bytes)
+   *       1 byte (nElements <= 63, flags)
+   *       + 0-(1+255*(2+255)) = 0-65536 (depending on `flags')
+   *       + nElements * (6-14 bytes)
    *
-   *      bitmapGps (size at most 2^16 bytes)
-   *        1 byte (flags)
-   *        3-13 bytes (position info, depending on `flags')
-   *        0-? bitmap data
+   *     bitmapGps (size at most 2^16 bytes)
+   *       1 byte (flags)
+   *       3-13 bytes (position info, depending on `flags')
+   *       0-? bitmap data
    *
-   *         ==>   minimum size 4 bytes
+   *        ==>  minimum size 4 bytes
    *
-   *    PFR trailer
-   *        8 bytes
+   *   PFR trailer
+   *       8 bytes
    *
    *
-   * ==>   minimum size of a valid PFR:
-   *         58 (header)
-   *         + 2 (nLogFonts)
-   *         + 27 (1 physFontRecord)
-   *         + 8 (trailer)
-   *        -----
-   *         95 bytes
+   * ==>  minimum size of a valid PFR:
+   *        58 (header)
+   *        + 2 (nLogFonts)
+   *        + 27 (1 physFontRecord)
+   *        + 8 (trailer)
+   *       -----
+   *        95 bytes
    *
    */
 
diff --git a/thirdparty/freetype/src/pfr/pfrload.h b/thirdparty/freetype/src/pfr/pfrload.h
index 36e809a762..2e7ffd0127 100644
--- a/thirdparty/freetype/src/pfr/pfrload.h
+++ b/thirdparty/freetype/src/pfr/pfrload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrload.h                                                              */
-/*                                                                         */
-/*    FreeType PFR loader (specification).                                 */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrload.h
+ *
+ *   FreeType PFR loader (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFRLOAD_H_
diff --git a/thirdparty/freetype/src/pfr/pfrobjs.c b/thirdparty/freetype/src/pfr/pfrobjs.c
index 737b97b5ff..e103a3f6f2 100644
--- a/thirdparty/freetype/src/pfr/pfrobjs.c
+++ b/thirdparty/freetype/src/pfr/pfrobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrobjs.c                                                              */
-/*                                                                         */
-/*    FreeType PFR object methods (body).                                  */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrobjs.c
+ *
+ *   FreeType PFR object methods (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "pfrobjs.h"
@@ -29,7 +29,7 @@
 #include "pfrerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pfr
+#define FT_COMPONENT  pfr
 
 
   /*************************************************************************/
@@ -122,7 +122,7 @@
               stream,
               (FT_UInt)( face_index & 0xFFFF ),
               face->header.log_dir_offset,
-              FT_BOOL( face->header.phy_font_max_size_high != 0 ) );
+              FT_BOOL( face->header.phy_font_max_size_high ) );
     if ( error )
       goto Exit;
 
@@ -370,7 +370,7 @@
       FT_Bool            scaling;
 
 
-      scaling = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 );
+      scaling = FT_BOOL( !( load_flags & FT_LOAD_NO_SCALE ) );
 
       /* copy outline data */
       *outline = slot->glyph.loader->base.outline;
diff --git a/thirdparty/freetype/src/pfr/pfrobjs.h b/thirdparty/freetype/src/pfr/pfrobjs.h
index 59c709f58d..39cffd07c5 100644
--- a/thirdparty/freetype/src/pfr/pfrobjs.h
+++ b/thirdparty/freetype/src/pfr/pfrobjs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrobjs.h                                                              */
-/*                                                                         */
-/*    FreeType PFR object methods (specification).                         */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrobjs.h
+ *
+ *   FreeType PFR object methods (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFROBJS_H_
diff --git a/thirdparty/freetype/src/pfr/pfrsbit.c b/thirdparty/freetype/src/pfr/pfrsbit.c
index ba909ddca7..00a9616455 100644
--- a/thirdparty/freetype/src/pfr/pfrsbit.c
+++ b/thirdparty/freetype/src/pfr/pfrsbit.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrsbit.c                                                              */
-/*                                                                         */
-/*    FreeType PFR bitmap loader (body).                                   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrsbit.c
+ *
+ *   FreeType PFR bitmap loader (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "pfrsbit.h"
@@ -24,7 +24,7 @@
 #include "pfrerror.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pfr
+#define FT_COMPONENT  pfr
 
 
   /*************************************************************************/
diff --git a/thirdparty/freetype/src/pfr/pfrsbit.h b/thirdparty/freetype/src/pfr/pfrsbit.h
index 07b27bc06c..6568b90943 100644
--- a/thirdparty/freetype/src/pfr/pfrsbit.h
+++ b/thirdparty/freetype/src/pfr/pfrsbit.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrsbit.h                                                              */
-/*                                                                         */
-/*    FreeType PFR bitmap loader (specification).                          */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrsbit.h
+ *
+ *   FreeType PFR bitmap loader (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFRSBIT_H_
diff --git a/thirdparty/freetype/src/pfr/pfrtypes.h b/thirdparty/freetype/src/pfr/pfrtypes.h
index 058d6aadc9..6a5f9d571b 100644
--- a/thirdparty/freetype/src/pfr/pfrtypes.h
+++ b/thirdparty/freetype/src/pfr/pfrtypes.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pfrtypes.h                                                             */
-/*                                                                         */
-/*    FreeType PFR data structures (specification only).                   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pfrtypes.h
+ *
+ *   FreeType PFR data structures (specification only).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PFRTYPES_H_
diff --git a/thirdparty/freetype/src/pfr/rules.mk b/thirdparty/freetype/src/pfr/rules.mk
index 3acb795696..f14ca699e2 100644
--- a/thirdparty/freetype/src/pfr/rules.mk
+++ b/thirdparty/freetype/src/pfr/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2002-2018 by
+# Copyright (C) 2002-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/psaux/afmparse.c b/thirdparty/freetype/src/psaux/afmparse.c
index 0c33d5949b..49225a9f78 100644
--- a/thirdparty/freetype/src/psaux/afmparse.c
+++ b/thirdparty/freetype/src/psaux/afmparse.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afmparse.c                                                             */
-/*                                                                         */
-/*    AFM parser (body).                                                   */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afmparse.c
+ *
+ *   AFM parser (body).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_FREETYPE_H
@@ -28,13 +28,13 @@
 #include "psauxerr.h"
 
 
-/***************************************************************************/
-/*                                                                         */
-/*    AFM_Stream                                                           */
-/*                                                                         */
-/* The use of AFM_Stream is largely inspired by parseAFM.[ch] from t1lib.  */
-/*                                                                         */
-/*                                                                         */
+  /**************************************************************************
+   *
+   * AFM_Stream
+   *
+   * The use of AFM_Stream is largely inspired by parseAFM.[ch] from t1lib.
+   *
+   */
 
   enum
   {
@@ -193,11 +193,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*    AFM_Parser                                                         */
-  /*                                                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * AFM_Parser
+   *
+   */
 
   /* all keys defined in Ch. 7-10 of 5004.AFM_Spec.pdf */
   typedef enum  AFM_Token_
diff --git a/thirdparty/freetype/src/psaux/afmparse.h b/thirdparty/freetype/src/psaux/afmparse.h
index 86f852a247..2ceb77553b 100644
--- a/thirdparty/freetype/src/psaux/afmparse.h
+++ b/thirdparty/freetype/src/psaux/afmparse.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  afmparse.h                                                             */
-/*                                                                         */
-/*    AFM parser (specification).                                          */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * afmparse.h
+ *
+ *   AFM parser (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef AFMPARSE_H_
diff --git a/thirdparty/freetype/src/psaux/cffdecode.c b/thirdparty/freetype/src/psaux/cffdecode.c
index 80d622c0e1..17cccf818b 100644
--- a/thirdparty/freetype/src/psaux/cffdecode.c
+++ b/thirdparty/freetype/src/psaux/cffdecode.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffdecode.c                                                            */
-/*                                                                         */
-/*    PostScript CFF (Type 2) decoding routines (body).                    */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffdecode.c
+ *
+ *   PostScript CFF (Type 2) decoding routines (body).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -28,14 +28,14 @@
 #include "psauxerr.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cffdecode
+#define FT_COMPONENT  cffdecode
 
 
 #ifdef CFF_CONFIG_OPTION_OLD_ENGINE
@@ -235,8 +235,8 @@
       return FT_THROW( Syntax_Error );
     }
 
-    adx += decoder->builder.left_bearing.x;
-    ady += decoder->builder.left_bearing.y;
+    adx = ADD_LONG( adx, decoder->builder.left_bearing.x );
+    ady = ADD_LONG( ady, decoder->builder.left_bearing.y );
 
 #ifdef FT_CONFIG_OPTION_INCREMENTAL
     /* Incremental fonts don't necessarily have valid charsets.        */
@@ -378,23 +378,26 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_compute_bias                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the bias value in dependence of the number of glyph       */
-  /*    subroutines.                                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    in_charstring_type :: The `CharstringType' value of the top DICT   */
-  /*                          dictionary.                                  */
-  /*                                                                       */
-  /*    num_subrs          :: The number of glyph subroutines.             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The bias value.                                                    */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_compute_bias
+   *
+   * @Description:
+   *   Computes the bias value in dependence of the number of glyph
+   *   subroutines.
+   *
+   * @Input:
+   *   in_charstring_type ::
+   *     The `CharstringType' value of the top DICT
+   *     dictionary.
+   *
+   *   num_subrs ::
+   *     The number of glyph subroutines.
+   *
+   * @Return:
+   *   The bias value.
+   */
   static FT_Int
   cff_compute_bias( FT_Int   in_charstring_type,
                     FT_UInt  num_subrs )
@@ -464,28 +467,32 @@
 
 #ifdef CFF_CONFIG_OPTION_OLD_ENGINE
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_decoder_parse_charstrings                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parses a given Type 2 charstrings program.                         */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    decoder         :: The current Type 1 decoder.                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    charstring_base :: The base of the charstring stream.              */
-  /*                                                                       */
-  /*    charstring_len  :: The length in bytes of the charstring stream.   */
-  /*                                                                       */
-  /*    in_dict         :: Set to 1 if function is called from top or      */
-  /*                       private DICT (needed for Multiple Master CFFs). */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_decoder_parse_charstrings
+   *
+   * @Description:
+   *   Parses a given Type 2 charstrings program.
+   *
+   * @InOut:
+   *   decoder ::
+   *     The current Type 1 decoder.
+   *
+   * @Input:
+   *   charstring_base ::
+   *     The base of the charstring stream.
+   *
+   *   charstring_len ::
+   *     The length in bytes of the charstring stream.
+   *
+   *   in_dict ::
+   *     Set to 1 if function is called from top or
+   *     private DICT (needed for Multiple Master CFFs).
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   cff_decoder_parse_charstrings( CFF_Decoder*  decoder,
                                  FT_Byte*      charstring_base,
@@ -543,10 +550,10 @@
       FT_Byte       v;
 
 
-      /********************************************************************/
-      /*                                                                  */
-      /* Decode operator or operand                                       */
-      /*                                                                  */
+      /*********************************************************************
+       *
+       * Decode operator or operand
+       */
       v = *ip++;
       if ( v >= 32 || v == 28 )
       {
@@ -853,6 +860,15 @@
           case cff_op_flex1:
           case cff_op_callsubr:
           case cff_op_callgsubr:
+            /* deprecated opcodes */
+          case cff_op_dotsection:
+            /* invalid Type 1 opcodes */
+          case cff_op_hsbw:
+          case cff_op_closepath:
+          case cff_op_callothersubr:
+          case cff_op_seac:
+          case cff_op_sbw:
+          case cff_op_setcurrentpoint:
             goto MM_Error;
 
           default:
@@ -948,10 +964,10 @@
         case cff_op_hstemhm:
         case cff_op_vstemhm:
           /* the number of arguments is always even here */
-          FT_TRACE4((
-              op == cff_op_hstem   ? " hstem\n"   :
-            ( op == cff_op_vstem   ? " vstem\n"   :
-            ( op == cff_op_hstemhm ? " hstemhm\n" : " vstemhm\n" ) ) ));
+          FT_TRACE4(( "%s\n",
+              op == cff_op_hstem   ? " hstem"   :
+            ( op == cff_op_vstem   ? " vstem"   :
+            ( op == cff_op_hstemhm ? " hstemhm" : " vstemhm" ) ) ));
 
           if ( hinter )
             hinter->stems( hinter->hints,
@@ -965,7 +981,8 @@
 
         case cff_op_hintmask:
         case cff_op_cntrmask:
-          FT_TRACE4(( op == cff_op_hintmask ? " hintmask" : " cntrmask" ));
+          FT_TRACE4(( "%s", op == cff_op_hintmask ? " hintmask"
+                                                  : " cntrmask" ));
 
           /* implement vstem when needed --                        */
           /* the specification doesn't say it, but this also works */
@@ -1078,8 +1095,8 @@
             FT_Int  phase = ( op == cff_op_hlineto );
 
 
-            FT_TRACE4(( op == cff_op_hlineto ? " hlineto\n"
-                                             : " vlineto\n" ));
+            FT_TRACE4(( "%s\n", op == cff_op_hlineto ? " hlineto"
+                                                     : " vlineto" ));
 
             if ( num_args < 0 )
               goto Stack_Underflow;
@@ -1250,8 +1267,8 @@
             FT_Int  nargs;
 
 
-            FT_TRACE4(( op == cff_op_vhcurveto ? " vhcurveto\n"
-                                               : " hvcurveto\n" ));
+            FT_TRACE4(( "%s\n", op == cff_op_vhcurveto ? " vhcurveto"
+                                                       : " hvcurveto" ));
 
             if ( cff_builder_start_point( builder, x, y ) )
               goto Fail;
@@ -1539,9 +1556,9 @@
             }
 
             if ( dx < 0 )
-              dx = -dx;
+              dx = NEG_LONG( dx );
             if ( dy < 0 )
-              dy = -dy;
+              dy = NEG_LONG( dy );
 
             /* strange test, but here it is... */
             horizontal = ( dx > dy );
@@ -1551,7 +1568,7 @@
               x = ADD_LONG( x, args[0] );
               y = ADD_LONG( y, args[1] );
               cff_builder_add_point( builder, x, y,
-                                     (FT_Bool)( count == 3 ) );
+                                     FT_BOOL( count == 3 ) );
               args += 2;
             }
 
@@ -1589,7 +1606,7 @@
               x = ADD_LONG( x, args[0] );
               y = ADD_LONG( y, args[1] );
               cff_builder_add_point( builder, x, y,
-                                     (FT_Bool)( count == 4 || count == 1 ) );
+                                     FT_BOOL( count == 4 || count == 1 ) );
               args += 2;
             }
 
@@ -1705,16 +1722,20 @@
           break;
 
         case cff_op_random:
-          FT_TRACE4(( " random\n" ));
+          {
+            FT_UInt32*  randval = in_dict ? &decoder->cff->top_font.random
+                                          : &decoder->current_subfont->random;
 
-          /* only use the lower 16 bits of `random'  */
-          /* to generate a number in the range (0;1] */
-          args[0] = (FT_Fixed)
-                      ( ( decoder->current_subfont->random & 0xFFFF ) + 1 );
-          args++;
 
-          decoder->current_subfont->random =
-            cff_random( decoder->current_subfont->random );
+            FT_TRACE4(( " random\n" ));
+
+            /* only use the lower 16 bits of `random'  */
+            /* to generate a number in the range (0;1] */
+            args[0] = (FT_Fixed)( ( *randval & 0xFFFF ) + 1 );
+            args++;
+
+            *randval = cff_random( *randval );
+          }
           break;
 
         case cff_op_mul:
@@ -1727,7 +1748,10 @@
         case cff_op_sqrt:
           FT_TRACE4(( " sqrt\n" ));
 
-          if ( args[0] > 0 )
+          /* without upper limit the loop below might not finish */
+          if ( args[0] > 0x7FFFFFFFL )
+            args[0] = 46341;
+          else if ( args[0] > 0 )
           {
             FT_Fixed  root = args[0];
             FT_Fixed  new_root;
@@ -1800,6 +1824,7 @@
 
             if ( idx >= 0 )
             {
+              idx = idx % count;
               while ( idx > 0 )
               {
                 FT_Fixed  tmp = args[count - 1];
@@ -1814,6 +1839,10 @@
             }
             else
             {
+              /* before C99 it is implementation-defined whether    */
+              /* the result of `%' is negative if the first operand */
+              /* is negative                                        */
+              idx = -( NEG_INT( idx ) % count );
               while ( idx < 0 )
               {
                 FT_Fixed  tmp = args[0];
@@ -1914,6 +1943,7 @@
         case cff_op_blend:
           /* this operator was removed from the Type2 specification */
           /* in version 16-March-2000                               */
+          if ( num_designs )
           {
             FT_Int  num_results = (FT_Int)( args[0] >> 16 );
 
@@ -1923,7 +1953,8 @@
             if ( num_results < 0 )
               goto Syntax_Error;
 
-            if ( num_results * (FT_Int)num_designs > num_args )
+            if ( num_results > num_args                       ||
+                 num_results * (FT_Int)num_designs > num_args )
               goto Stack_Underflow;
 
             /* since we currently don't handle interpolation of multiple */
@@ -1932,6 +1963,8 @@
             args     -= num_results * ( num_designs - 1 );
             num_args -= num_results * ( num_designs - 1 );
           }
+          else
+            goto Syntax_Error;
           break;
 
         case cff_op_dotsection:
@@ -1998,20 +2031,31 @@
           break;
 
         case cff_op_callothersubr:
-          /* this is an invalid Type 2 operator; however, there        */
-          /* exist fonts which are incorrectly converted from probably */
-          /* Type 1 to CFF, and some parsers seem to accept it         */
+          {
+            FT_Fixed  arg;
 
-          FT_TRACE4(( " callothersubr (invalid op)\n" ));
 
-          /* subsequent `pop' operands should add the arguments,       */
-          /* this is the implementation described for `unknown' other  */
-          /* subroutines in the Type1 spec.                            */
-          /*                                                           */
-          /* XXX Fix return arguments (see discussion below).          */
-          args -= 2 + ( args[-2] >> 16 );
-          if ( args < stack )
-            goto Stack_Underflow;
+            /* this is an invalid Type 2 operator; however, there      */
+            /* exist fonts which are incorrectly converted from        */
+            /* probably Type 1 to CFF, and some parsers seem to accept */
+            /* it                                                      */
+
+            FT_TRACE4(( " callothersubr (invalid op)\n" ));
+
+            /* subsequent `pop' operands should add the arguments,     */
+            /* this is the implementation described for `unknown'      */
+            /* other subroutines in the Type1 spec.                    */
+            /*                                                         */
+            /* XXX Fix return arguments (see discussion below).        */
+
+            arg = 2 + ( args[-2] >> 16 );
+            if ( arg >= CFF_MAX_OPERANDS )
+              goto Stack_Underflow;
+
+            args -= arg;
+            if ( args < stack )
+              goto Stack_Underflow;
+          }
           break;
 
         case cff_op_pop:
@@ -2251,28 +2295,34 @@
 #endif /* CFF_CONFIG_OPTION_OLD_ENGINE */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_decoder_init                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given glyph decoder.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    decoder :: A pointer to the glyph builder to initialize.           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face      :: The current face object.                              */
-  /*                                                                       */
-  /*    size      :: The current size object.                              */
-  /*                                                                       */
-  /*    slot      :: The current glyph object.                             */
-  /*                                                                       */
-  /*    hinting   :: Whether hinting is active.                            */
-  /*                                                                       */
-  /*    hint_mode :: The hinting mode.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_decoder_init
+   *
+   * @Description:
+   *   Initializes a given glyph decoder.
+   *
+   * @InOut:
+   *   decoder ::
+   *     A pointer to the glyph builder to initialize.
+   *
+   * @Input:
+   *   face ::
+   *     The current face object.
+   *
+   *   size ::
+   *     The current size object.
+   *
+   *   slot ::
+   *     The current glyph object.
+   *
+   *   hinting ::
+   *     Whether hinting is active.
+   *
+   *   hint_mode ::
+   *     The hinting mode.
+   */
   FT_LOCAL_DEF( void )
   cff_decoder_init( CFF_Decoder*                     decoder,
                     TT_Face                          face,
diff --git a/thirdparty/freetype/src/psaux/cffdecode.h b/thirdparty/freetype/src/psaux/cffdecode.h
index 0d4f5fef63..a6691979f0 100644
--- a/thirdparty/freetype/src/psaux/cffdecode.h
+++ b/thirdparty/freetype/src/psaux/cffdecode.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  cffdecode.h                                                            */
-/*                                                                         */
-/*    PostScript CFF (Type 2) decoding routines (specification).           */
-/*                                                                         */
-/*  Copyright 2017-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * cffdecode.h
+ *
+ *   PostScript CFF (Type 2) decoding routines (specification).
+ *
+ * Copyright (C) 2017-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef CFFDECODE_H_
diff --git a/thirdparty/freetype/src/psaux/module.mk b/thirdparty/freetype/src/psaux/module.mk
index 6584d075a2..bb0886abdf 100644
--- a/thirdparty/freetype/src/psaux/module.mk
+++ b/thirdparty/freetype/src/psaux/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/psaux/psarrst.c b/thirdparty/freetype/src/psaux/psarrst.c
index a8780947f9..011803b416 100644
--- a/thirdparty/freetype/src/psaux/psarrst.c
+++ b/thirdparty/freetype/src/psaux/psarrst.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psarrst.c                                                              */
-/*                                                                         */
-/*    Adobe's code for Array Stacks (body).                                */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psarrst.c
+ *
+ *   Adobe's code for Array Stacks (body).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
diff --git a/thirdparty/freetype/src/psaux/psarrst.h b/thirdparty/freetype/src/psaux/psarrst.h
index b3568eb61f..098617b257 100644
--- a/thirdparty/freetype/src/psaux/psarrst.h
+++ b/thirdparty/freetype/src/psaux/psarrst.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psarrst.h                                                              */
-/*                                                                         */
-/*    Adobe's code for Array Stacks (specification).                       */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psarrst.h
+ *
+ *   Adobe's code for Array Stacks (specification).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSARRST_H_
diff --git a/thirdparty/freetype/src/psaux/psaux.c b/thirdparty/freetype/src/psaux/psaux.c
index fb447fcdbb..1db0462551 100644
--- a/thirdparty/freetype/src/psaux/psaux.c
+++ b/thirdparty/freetype/src/psaux/psaux.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psaux.c                                                                */
-/*                                                                         */
-/*    FreeType auxiliary PostScript driver component (body only).          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psaux.c
+ *
+ *   FreeType auxiliary PostScript driver component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/psaux/psauxerr.h b/thirdparty/freetype/src/psaux/psauxerr.h
index cc33fd2eea..523e1886c2 100644
--- a/thirdparty/freetype/src/psaux/psauxerr.h
+++ b/thirdparty/freetype/src/psaux/psauxerr.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psauxerr.h                                                             */
-/*                                                                         */
-/*    PS auxiliary module error codes (specification only).                */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the PS auxiliary module error enumeration */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * psauxerr.h
+ *
+ *   PS auxiliary module error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the PS auxiliary module error enumeration
+   * constants.
+   *
+   */
 
 #ifndef PSAUXERR_H_
 #define PSAUXERR_H_
diff --git a/thirdparty/freetype/src/psaux/psauxmod.c b/thirdparty/freetype/src/psaux/psauxmod.c
index ee497085cc..5df8e69056 100644
--- a/thirdparty/freetype/src/psaux/psauxmod.c
+++ b/thirdparty/freetype/src/psaux/psauxmod.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psauxmod.c                                                             */
-/*                                                                         */
-/*    FreeType auxiliary PostScript module implementation (body).          */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psauxmod.c
+ *
+ *   FreeType auxiliary PostScript module implementation (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/psaux/psauxmod.h b/thirdparty/freetype/src/psaux/psauxmod.h
index f30978f022..a0eda0bfc0 100644
--- a/thirdparty/freetype/src/psaux/psauxmod.h
+++ b/thirdparty/freetype/src/psaux/psauxmod.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psauxmod.h                                                             */
-/*                                                                         */
-/*    FreeType auxiliary PostScript module implementation (specification). */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psauxmod.h
+ *
+ *   FreeType auxiliary PostScript module implementation (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSAUXMOD_H_
@@ -28,10 +28,6 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
 
   FT_CALLBACK_TABLE
   const CFF_Builder_FuncsRec  cff_builder_funcs;
diff --git a/thirdparty/freetype/src/psaux/psblues.c b/thirdparty/freetype/src/psaux/psblues.c
index ae39d03c77..89738ce474 100644
--- a/thirdparty/freetype/src/psaux/psblues.c
+++ b/thirdparty/freetype/src/psaux/psblues.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psblues.c                                                              */
-/*                                                                         */
-/*    Adobe's code for handling Blue Zones (body).                         */
-/*                                                                         */
-/*  Copyright 2009-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psblues.c
+ *
+ *   Adobe's code for handling Blue Zones (body).
+ *
+ * Copyright 2009-2014 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
@@ -44,14 +44,14 @@
 #include "psfont.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cf2blues
+#define FT_COMPONENT  cf2blues
 
 
   /*
@@ -452,13 +452,13 @@
    * zones in the same pass (see `BlueLock').  If a hint is captured,
    * return true and position the edge(s) in one of 3 ways:
    *
-   *  1) If `BlueScale' suppresses overshoot, position the captured edge
-   *     at the flat edge of the zone.
-   *  2) If overshoot is not suppressed and `BlueShift' requires
-   *     overshoot, position the captured edge a minimum of 1 device pixel
-   *     from the flat edge.
-   *  3) If overshoot is not suppressed or required, position the captured
-   *     edge at the nearest device pixel.
+   * 1) If `BlueScale' suppresses overshoot, position the captured edge
+   *    at the flat edge of the zone.
+   * 2) If overshoot is not suppressed and `BlueShift' requires
+   *    overshoot, position the captured edge a minimum of 1 device pixel
+   *    from the flat edge.
+   * 3) If overshoot is not suppressed or required, position the captured
+   *    edge at the nearest device pixel.
    *
    */
   FT_LOCAL_DEF( FT_Bool )
diff --git a/thirdparty/freetype/src/psaux/psblues.h b/thirdparty/freetype/src/psaux/psblues.h
index 25ef6849c7..55fb88ecdd 100644
--- a/thirdparty/freetype/src/psaux/psblues.h
+++ b/thirdparty/freetype/src/psaux/psblues.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psblues.h                                                              */
-/*                                                                         */
-/*    Adobe's code for handling Blue Zones (specification).                */
-/*                                                                         */
-/*  Copyright 2009-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psblues.h
+ *
+ *   Adobe's code for handling Blue Zones (specification).
+ *
+ * Copyright 2009-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
   /*
diff --git a/thirdparty/freetype/src/psaux/psconv.c b/thirdparty/freetype/src/psaux/psconv.c
index a03385000d..c88761681c 100644
--- a/thirdparty/freetype/src/psaux/psconv.c
+++ b/thirdparty/freetype/src/psaux/psconv.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psconv.c                                                               */
-/*                                                                         */
-/*    Some convenience conversions (body).                                 */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psconv.c
+ *
+ *   Some convenience conversions (body).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -24,14 +24,14 @@
 #include "psauxerr.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_psconv
+#define FT_COMPONENT  psconv
 
 
   /* The following array is used by various functions to quickly convert */
diff --git a/thirdparty/freetype/src/psaux/psconv.h b/thirdparty/freetype/src/psaux/psconv.h
index d643ffcfc2..6b24bf6fc9 100644
--- a/thirdparty/freetype/src/psaux/psconv.h
+++ b/thirdparty/freetype/src/psaux/psconv.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psconv.h                                                               */
-/*                                                                         */
-/*    Some convenience conversions (specification).                        */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psconv.h
+ *
+ *   Some convenience conversions (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSCONV_H_
diff --git a/thirdparty/freetype/src/psaux/pserror.c b/thirdparty/freetype/src/psaux/pserror.c
index 9169e5222d..98cebcf74d 100644
--- a/thirdparty/freetype/src/psaux/pserror.c
+++ b/thirdparty/freetype/src/psaux/pserror.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pserror.c                                                              */
-/*                                                                         */
-/*    Adobe's code for error handling (body).                              */
-/*                                                                         */
-/*  Copyright 2006-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pserror.c
+ *
+ *   Adobe's code for error handling (body).
+ *
+ * Copyright 2006-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
diff --git a/thirdparty/freetype/src/psaux/pserror.h b/thirdparty/freetype/src/psaux/pserror.h
index 13d52062bf..b2156b3318 100644
--- a/thirdparty/freetype/src/psaux/pserror.h
+++ b/thirdparty/freetype/src/psaux/pserror.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pserror.h                                                              */
-/*                                                                         */
-/*    Adobe's code for error handling (specification).                     */
-/*                                                                         */
-/*  Copyright 2006-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pserror.h
+ *
+ *   Adobe's code for error handling (specification).
+ *
+ * Copyright 2006-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSERROR_H_
diff --git a/thirdparty/freetype/src/psaux/psfixed.h b/thirdparty/freetype/src/psaux/psfixed.h
index 219589e7fc..fd3460f34a 100644
--- a/thirdparty/freetype/src/psaux/psfixed.h
+++ b/thirdparty/freetype/src/psaux/psfixed.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psfixed.h                                                              */
-/*                                                                         */
-/*    Adobe's code for Fixed Point Mathematics (specification only).       */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psfixed.h
+ *
+ *   Adobe's code for Fixed Point Mathematics (specification only).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSFIXED_H_
diff --git a/thirdparty/freetype/src/psaux/psfont.c b/thirdparty/freetype/src/psaux/psfont.c
index dde67a739d..bb5faa38f5 100644
--- a/thirdparty/freetype/src/psaux/psfont.c
+++ b/thirdparty/freetype/src/psaux/psfont.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psfont.c                                                               */
-/*                                                                         */
-/*    Adobe's code for font instances (body).                              */
-/*                                                                         */
-/*  Copyright 2007-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psfont.c
+ *
+ *   Adobe's code for font instances (body).
+ *
+ * Copyright 2007-2014 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -331,7 +331,7 @@
     }
 
     /* copy hinted flag on each call */
-    font->hinted = (FT_Bool)( font->renderingFlags & CF2_FlagsHinted );
+    font->hinted = FT_BOOL( font->renderingFlags & CF2_FlagsHinted );
 
     /* determine if transform has changed;       */
     /* include Fontmatrix but ignore translation */
@@ -366,7 +366,7 @@
     if ( font->stemDarkened != ( font->renderingFlags & CF2_FlagsDarkened ) )
     {
       font->stemDarkened =
-        (FT_Bool)( font->renderingFlags & CF2_FlagsDarkened );
+        FT_BOOL( font->renderingFlags & CF2_FlagsDarkened );
 
       /* blue zones depend on darkened flag */
       needExtraSetup = TRUE;
diff --git a/thirdparty/freetype/src/psaux/psfont.h b/thirdparty/freetype/src/psaux/psfont.h
index e611ac4bdc..8fbacbb6e3 100644
--- a/thirdparty/freetype/src/psaux/psfont.h
+++ b/thirdparty/freetype/src/psaux/psfont.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psfont.h                                                               */
-/*                                                                         */
-/*    Adobe's code for font instances (specification).                     */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psfont.h
+ *
+ *   Adobe's code for font instances (specification).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSFONT_H_
diff --git a/thirdparty/freetype/src/psaux/psft.c b/thirdparty/freetype/src/psaux/psft.c
index 1f750174a1..54be468343 100644
--- a/thirdparty/freetype/src/psaux/psft.c
+++ b/thirdparty/freetype/src/psaux/psft.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psft.c                                                                 */
-/*                                                                         */
-/*    FreeType Glue Component to Adobe's Interpreter (body).               */
-/*                                                                         */
-/*  Copyright 2013-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psft.c
+ *
+ *   FreeType Glue Component to Adobe's Interpreter (body).
+ *
+ * Copyright 2013-2014 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
@@ -120,12 +120,12 @@
   }
 
 
-  /********************************************/
-  /*                                          */
-  /* functions for handling client outline;   */
-  /* FreeType uses coordinates in 26.6 format */
-  /*                                          */
-  /********************************************/
+  /*********************************************
+   *
+   * functions for handling client outline;
+   * FreeType uses coordinates in 26.6 format
+   *
+   */
 
   static void
   cf2_builder_moveTo( CF2_OutlineCallbacks      callbacks,
@@ -767,13 +767,14 @@
   cf2_freeT1SeacComponent( PS_Decoder*  decoder,
                            CF2_Buffer   buf )
   {
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+
     T1_Face  face;
     FT_Data  data;
 
 
     FT_ASSERT( decoder );
 
-#ifdef FT_CONFIG_OPTION_INCREMENTAL
     face = (T1_Face)decoder->builder.face;
 
     data.pointer = buf->start;
@@ -783,7 +784,13 @@
       face->root.internal->incremental_interface->funcs->free_glyph_data(
         face->root.internal->incremental_interface->object,
         &data );
-#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+#else /* !FT_CONFIG_OPTION_INCREMENTAL */
+
+    FT_UNUSED( decoder );
+    FT_UNUSED( buf );
+
+#endif /* !FT_CONFIG_OPTION_INCREMENTAL */
   }
 
 
diff --git a/thirdparty/freetype/src/psaux/psft.h b/thirdparty/freetype/src/psaux/psft.h
index ab172110bb..4c930f0d73 100644
--- a/thirdparty/freetype/src/psaux/psft.h
+++ b/thirdparty/freetype/src/psaux/psft.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psft.h                                                                 */
-/*                                                                         */
-/*    FreeType Glue Component to Adobe's Interpreter (specification).      */
-/*                                                                         */
-/*  Copyright 2013 Adobe Systems Incorporated.                             */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psft.h
+ *
+ *   FreeType Glue Component to Adobe's Interpreter (specification).
+ *
+ * Copyright 2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSFT_H_
diff --git a/thirdparty/freetype/src/psaux/psglue.h b/thirdparty/freetype/src/psaux/psglue.h
index 5545e12a5b..022aafbfca 100644
--- a/thirdparty/freetype/src/psaux/psglue.h
+++ b/thirdparty/freetype/src/psaux/psglue.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psglue.h                                                               */
-/*                                                                         */
-/*    Adobe's code for shared stuff (specification only).                  */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psglue.h
+ *
+ *   Adobe's code for shared stuff (specification only).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSGLUE_H_
diff --git a/thirdparty/freetype/src/psaux/pshints.c b/thirdparty/freetype/src/psaux/pshints.c
index 3615196425..1cbecd2b19 100644
--- a/thirdparty/freetype/src/psaux/pshints.c
+++ b/thirdparty/freetype/src/psaux/pshints.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshints.c                                                              */
-/*                                                                         */
-/*    Adobe's code for handling CFF hints (body).                          */
-/*                                                                         */
-/*  Copyright 2007-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshints.c
+ *
+ *   Adobe's code for handling CFF hints (body).
+ *
+ * Copyright 2007-2014 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
@@ -45,14 +45,14 @@
 #include "psintrp.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cf2hints
+#define FT_COMPONENT  cf2hints
 
 
   typedef struct  CF2_HintMoveRec_
@@ -217,52 +217,49 @@
   FT_LOCAL_DEF( FT_Bool )
   cf2_hint_isValid( const CF2_Hint  hint )
   {
-    return (FT_Bool)( hint->flags != 0 );
+    return FT_BOOL( hint->flags );
   }
 
 
   static FT_Bool
   cf2_hint_isPair( const CF2_Hint  hint )
   {
-    return (FT_Bool)( ( hint->flags                      &
-                        ( CF2_PairBottom | CF2_PairTop ) ) != 0 );
+    return FT_BOOL( hint->flags & ( CF2_PairBottom | CF2_PairTop ) );
   }
 
 
   static FT_Bool
   cf2_hint_isPairTop( const CF2_Hint  hint )
   {
-    return (FT_Bool)( ( hint->flags & CF2_PairTop ) != 0 );
+    return FT_BOOL( hint->flags & CF2_PairTop );
   }
 
 
   FT_LOCAL_DEF( FT_Bool )
   cf2_hint_isTop( const CF2_Hint  hint )
   {
-    return (FT_Bool)( ( hint->flags                    &
-                        ( CF2_PairTop | CF2_GhostTop ) ) != 0 );
+    return FT_BOOL( hint->flags & ( CF2_PairTop | CF2_GhostTop ) );
   }
 
 
   FT_LOCAL_DEF( FT_Bool )
   cf2_hint_isBottom( const CF2_Hint  hint )
   {
-    return (FT_Bool)( ( hint->flags                          &
-                        ( CF2_PairBottom | CF2_GhostBottom ) ) != 0 );
+    return FT_BOOL( hint->flags & ( CF2_PairBottom | CF2_GhostBottom ) );
   }
 
 
   static FT_Bool
   cf2_hint_isLocked( const CF2_Hint  hint )
   {
-    return (FT_Bool)( ( hint->flags & CF2_Locked ) != 0 );
+    return FT_BOOL( hint->flags & CF2_Locked );
   }
 
 
   static FT_Bool
   cf2_hint_isSynthetic( const CF2_Hint  hint )
   {
-    return (FT_Bool)( ( hint->flags & CF2_Synthetic ) != 0 );
+    return FT_BOOL( hint->flags & CF2_Synthetic );
   }
 
 
@@ -334,7 +331,7 @@
   cf2_hintmap_map( CF2_HintMap  hintmap,
                    CF2_Fixed    csCoord )
   {
-    if ( hintmap->count == 0 || ! hintmap->hinted )
+    if ( hintmap->count == 0 || !hintmap->hinted )
     {
       /* there are no hints; use uniform scale and zero offset */
       return FT_MulFix( csCoord, hintmap->scale );
@@ -497,7 +494,7 @@
           {
             move     = moveDown;
             /* true if non-optimum move */
-            saveEdge = (FT_Bool)( moveUp < -moveDown );
+            saveEdge = FT_BOOL( moveUp < -moveDown );
           }
           else
           {
@@ -1025,10 +1022,10 @@
       }
     }
 
-    FT_TRACE6(( initialMap ? "flags: [p]air [g]host [t]op "
-                             "[b]ottom [L]ocked [S]ynthetic\n"
-                             "Initial hintmap\n"
-                           : "Hints:\n" ));
+    FT_TRACE6(( "%s\n", initialMap ? "flags: [p]air [g]host [t]op"
+                                     " [b]ottom [L]ocked [S]ynthetic\n"
+                                     "Initial hintmap"
+                                   : "Hints:" ));
     cf2_hintmap_dump( hintmap );
 
     /*
@@ -1215,7 +1212,7 @@
      * (`u').
      *
      * See notation in
-     * http://softsurfer.com/Archive/algorithm_0104/algorithm_0104B.htm.
+     * http://geomalgorithms.com/a05-_intersect-1.html.
      * Calculations are done in 16.16, but must handle the squaring of
      * line lengths in character space.  We scale all vectors by 1/32 to
      * avoid overflow.  This allows values up to 4095 to be squared.  The
diff --git a/thirdparty/freetype/src/psaux/pshints.h b/thirdparty/freetype/src/psaux/pshints.h
index 92e37e98ae..31a8230364 100644
--- a/thirdparty/freetype/src/psaux/pshints.h
+++ b/thirdparty/freetype/src/psaux/pshints.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshints.h                                                              */
-/*                                                                         */
-/*    Adobe's code for handling CFF hints (body).                          */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshints.h
+ *
+ *   Adobe's code for handling CFF hints (body).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSHINT_H_
diff --git a/thirdparty/freetype/src/psaux/psintrp.c b/thirdparty/freetype/src/psaux/psintrp.c
index da5a8dad1d..e2f3accdd5 100644
--- a/thirdparty/freetype/src/psaux/psintrp.c
+++ b/thirdparty/freetype/src/psaux/psintrp.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psintrp.c                                                              */
-/*                                                                         */
-/*    Adobe's CFF Interpreter (body).                                      */
-/*                                                                         */
-/*  Copyright 2007-2014 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psintrp.c
+ *
+ *   Adobe's CFF Interpreter (body).
+ *
+ * Copyright 2007-2014 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
@@ -52,14 +52,14 @@
 #include "t1decode.h" /* for t1 seac    */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_cf2interp
+#define FT_COMPONENT  cf2interp
 
 
   FT_LOCAL_DEF( void )
@@ -287,7 +287,7 @@
   {
     CF2_UInt  i;
     CF2_UInt  count       = cf2_stack_count( opStack );
-    FT_Bool   hasWidthArg = (FT_Bool)( count & 1 );
+    FT_Bool   hasWidthArg = FT_BOOL( count & 1 );
 
     /* variable accumulates delta values from operand stack */
     CF2_Fixed  position = hintOffset;
@@ -364,7 +364,7 @@
 
     if ( doConditionalLastRead )
     {
-      FT_Bool    lastIsX = (FT_Bool)(
+      FT_Bool    lastIsX = FT_BOOL(
                              cf2_fixedAbs( SUB_INT32( vals[10], *curX ) ) >
                              cf2_fixedAbs( SUB_INT32( vals[11], *curY ) ) );
       CF2_Fixed  lastVal = cf2_stack_getReal( opStack, idx );
@@ -612,14 +612,14 @@
     cf2_arrstack_setCount( &subrStack, CF2_MAX_SUBR + 1 );
 
     charstring  = (CF2_Buffer)cf2_arrstack_getBuffer( &subrStack );
-    *charstring = *buf;    /* structure copy */
-
-    charstringIndex = 0;       /* entry is valid now */
 
     /* catch errors so far */
     if ( *error )
       goto exit;
 
+    *charstring     = *buf;    /* structure copy     */
+    charstringIndex = 0;       /* entry is valid now */
+
     /* main interpreter loop */
     while ( 1 )
     {
@@ -663,6 +663,7 @@
           /* Skip outline commands first time round.       */
           /* `endchar' will trigger initial hintmap build  */
           /* and rewind the charstring.                    */
+          FT_TRACE4(( " <outline command skipped>\n" ));
           cf2_stack_clear( opStack );
           continue;
         }
@@ -775,7 +776,8 @@
 
       case cf2_cmdHSTEMHM:
       case cf2_cmdHSTEM:
-        FT_TRACE4(( op1 == cf2_cmdHSTEMHM ? " hstemhm\n" : " hstem\n" ));
+        FT_TRACE4(( "%s\n", op1 == cf2_cmdHSTEMHM ? " hstemhm"
+                                                  : " hstem" ));
 
         if ( !font->isT1 )
         {
@@ -805,7 +807,8 @@
 
       case cf2_cmdVSTEMHM:
       case cf2_cmdVSTEM:
-        FT_TRACE4(( op1 == cf2_cmdVSTEMHM ? " vstemhm\n" : " vstem\n" ));
+        FT_TRACE4(( "%s\n", op1 == cf2_cmdVSTEMHM ? " vstemhm"
+                                                  : " vstem" ));
 
         if ( !font->isT1 )
         {
@@ -888,7 +891,7 @@
           FT_Bool  isX = FT_BOOL( op1 == cf2_cmdHLINETO );
 
 
-          FT_TRACE4(( isX ? " hlineto\n" : " vlineto\n" ));
+          FT_TRACE4(( "%s\n", isX ? " hlineto" : " vlineto" ));
 
           for ( idx = 0; idx < count; idx++ )
           {
@@ -916,8 +919,8 @@
           CF2_UInt  idx   = 0;
 
 
-          FT_TRACE4(( op1 == cf2_cmdRCURVELINE ? " rcurveline\n"
-                                               : " rrcurveto\n" ));
+          FT_TRACE4(( "%s\n", op1 == cf2_cmdRCURVELINE ? " rcurveline"
+                                                       : " rrcurveto" ));
 
           while ( idx + 6 <= count )
           {
@@ -957,10 +960,10 @@
           FT_TRACE4(( " unknown op (%d)\n", op1 ));
         else
         {
-          FT_TRACE4(( " closepath" ));
+          FT_TRACE4(( " closepath\n" ));
 
           /* if there is no path, `closepath' is a no-op */
-          ps_builder_close_contour( &decoder->builder );
+          cf2_glyphpath_closeOpenPath( &glyphPath );
 
           haveWidth = TRUE;
         }
@@ -972,8 +975,8 @@
           CF2_Int  subrNum;
 
 
-          FT_TRACE4(( op1 == cf2_cmdCALLGSUBR ? " callgsubr"
-                                              : " callsubr" ));
+          FT_TRACE4(( "%s", op1 == cf2_cmdCALLGSUBR ? " callgsubr"
+                                                    : " callsubr" ));
 
           if ( ( !font->isT1 && charstringIndex > CF2_MAX_SUBR )       ||
                (  font->isT1 && charstringIndex > T1_MAX_SUBRS_CALLS ) )
@@ -1212,8 +1215,8 @@
                       FT_Bool  isV = FT_BOOL( op2 == cf2_escVSTEM3 );
 
 
-                      FT_TRACE4(( isV ? " vstem3\n"
-                                      : " hstem3\n" ));
+                      FT_TRACE4(( "%s\n", isV ? " vstem3"
+                                              : " hstem3" ));
 
                       FT_ASSERT( cf2_stack_count( opStack ) == 6 );
 
@@ -1644,16 +1647,17 @@
                     subr_no = cf2_stack_popInt( opStack );
                     arg_cnt = cf2_stack_popInt( opStack );
 
-                    /*******************************************************/
-                    /*                                                     */
-                    /* remove all operands to callothersubr from the stack */
-                    /*                                                     */
-                    /* for handled othersubrs, where we know the number of */
-                    /* arguments, we increase the stack by the value of    */
-                    /* known_othersubr_result_cnt                          */
-                    /*                                                     */
-                    /* for unhandled othersubrs the following pops adjust  */
-                    /* the stack pointer as necessary                      */
+                    /********************************************************
+                     *
+                     * remove all operands to callothersubr from the stack
+                     *
+                     * for handled othersubrs, where we know the number of
+                     * arguments, we increase the stack by the value of
+                     * known_othersubr_result_cnt
+                     *
+                     * for unhandled othersubrs the following pops adjust
+                     * the stack pointer as necessary
+                     */
 
                     count = cf2_stack_count( opStack );
                     FT_ASSERT( (CF2_UInt)arg_cnt <= count );
@@ -2416,7 +2420,7 @@
           PS_Builder*  builder;
 
 
-          FT_TRACE4(( " hsbw" ));
+          FT_TRACE4(( " hsbw\n" ));
 
           builder = &decoder->builder;
 
@@ -2562,7 +2566,7 @@
       case cf2_cmdHINTMASK:
         /* the final \n in the tracing message gets added in      */
         /* `cf2_hintmask_read' (which also traces the mask bytes) */
-        FT_TRACE4(( op1 == cf2_cmdCNTRMASK ? " cntrmask" : " hintmask" ));
+        FT_TRACE4(( "%s", op1 == cf2_cmdCNTRMASK ? " cntrmask" : " hintmask" ));
 
         /* never add hints after the mask is computed */
         if ( cf2_stack_count( opStack ) > 1    &&
@@ -2828,7 +2832,7 @@
           count = count1 & ~2U;
           idx  += count1 - count;
 
-          FT_TRACE4(( alternate ? " hvcurveto\n" : " vhcurveto\n" ));
+          FT_TRACE4(( "%s\n", alternate ? " hvcurveto" : " vhcurveto" ));
 
           while ( idx < count )
           {
diff --git a/thirdparty/freetype/src/psaux/psintrp.h b/thirdparty/freetype/src/psaux/psintrp.h
index 4790aaa302..669c09c0ae 100644
--- a/thirdparty/freetype/src/psaux/psintrp.h
+++ b/thirdparty/freetype/src/psaux/psintrp.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psintrp.h                                                              */
-/*                                                                         */
-/*    Adobe's CFF Interpreter (specification).                             */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psintrp.h
+ *
+ *   Adobe's CFF Interpreter (specification).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSINTRP_H_
diff --git a/thirdparty/freetype/src/psaux/psobjs.c b/thirdparty/freetype/src/psaux/psobjs.c
index f54bc7e416..e2168a3324 100644
--- a/thirdparty/freetype/src/psaux/psobjs.c
+++ b/thirdparty/freetype/src/psaux/psobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psobjs.c                                                               */
-/*                                                                         */
-/*    Auxiliary functions for PostScript fonts (body).                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psobjs.c
+ *
+ *   Auxiliary functions for PostScript fonts (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -29,14 +29,14 @@
 #include "psauxmod.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_psobjs
+#define FT_COMPONENT  psobjs
 
 
   /*************************************************************************/
@@ -47,26 +47,29 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ps_table_new                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a PS_Table.                                            */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    table  :: The address of the target table.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    count  :: The table size = the maximum number of elements.         */
-  /*                                                                       */
-  /*    memory :: The memory object to use for all subsequent              */
-  /*              reallocations.                                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ps_table_new
+   *
+   * @Description:
+   *   Initializes a PS_Table.
+   *
+   * @InOut:
+   *   table ::
+   *     The address of the target table.
+   *
+   * @Input:
+   *   count ::
+   *     The table size = the maximum number of elements.
+   *
+   *   memory ::
+   *     The memory object to use for all subsequent
+   *     reallocations.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   ps_table_new( PS_Table   table,
                 FT_Int     count,
@@ -144,28 +147,32 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ps_table_add                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Adds an object to a PS_Table, possibly growing its memory block.   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    table  :: The target table.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    idx    :: The index of the object in the table.                    */
-  /*                                                                       */
-  /*    object :: The address of the object to copy in memory.             */
-  /*                                                                       */
-  /*    length :: The length in bytes of the source object.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.  An error is returned if a  */
-  /*    reallocation fails.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ps_table_add
+   *
+   * @Description:
+   *   Adds an object to a PS_Table, possibly growing its memory block.
+   *
+   * @InOut:
+   *   table ::
+   *     The target table.
+   *
+   * @Input:
+   *   idx ::
+   *     The index of the object in the table.
+   *
+   *   object ::
+   *     The address of the object to copy in memory.
+   *
+   *   length ::
+   *     The length in bytes of the source object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.  An error is returned if a
+   *   reallocation fails.
+   */
   FT_LOCAL_DEF( FT_Error )
   ps_table_add( PS_Table  table,
                 FT_Int    idx,
@@ -216,22 +223,23 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ps_table_done                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a PS_TableRec (i.e., reallocate it to its current        */
-  /*    cursor).                                                           */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    table :: The target table.                                         */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This function does NOT release the heap's memory block.  It is up  */
-  /*    to the caller to clean it, or reference it in its own structures.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ps_table_done
+   *
+   * @Description:
+   *   Finalizes a PS_TableRec (i.e., reallocate it to its current
+   *   cursor).
+   *
+   * @InOut:
+   *   table ::
+   *     The target table.
+   *
+   * @Note:
+   *   This function does NOT release the heap's memory block.  It is up
+   *   to the caller to clean it, or reference it in its own structures.
+   */
   FT_LOCAL_DEF( void )
   ps_table_done( PS_Table  table )
   {
@@ -498,12 +506,12 @@
   }
 
 
-  /***********************************************************************/
-  /*                                                                     */
-  /* All exported parsing routines handle leading whitespace and stop at */
-  /* the first character which isn't part of the just handled token.     */
-  /*                                                                     */
-  /***********************************************************************/
+  /************************************************************************
+   *
+   * All exported parsing routines handle leading whitespace and stop at
+   * the first character which isn't part of the just handled token.
+   *
+   */
 
 
   FT_LOCAL_DEF( void )
@@ -1100,18 +1108,22 @@
       {
       case T1_FIELD_TYPE_BOOL:
         val = ps_tobool( &cur, limit );
+        FT_TRACE4(( " %s", val ? "true" : "false" ));
         goto Store_Integer;
 
       case T1_FIELD_TYPE_FIXED:
         val = PS_Conv_ToFixed( &cur, limit, 0 );
+        FT_TRACE4(( " %f", (double)val / 65536 ));
         goto Store_Integer;
 
       case T1_FIELD_TYPE_FIXED_1000:
         val = PS_Conv_ToFixed( &cur, limit, 3 );
+        FT_TRACE4(( " %f", (double)val / 65536 / 1000 ));
         goto Store_Integer;
 
       case T1_FIELD_TYPE_INTEGER:
         val = PS_Conv_ToInt( &cur, limit );
+        FT_TRACE4(( " %ld", val ));
         /* fall through */
 
       Store_Integer:
@@ -1188,6 +1200,13 @@
           FT_MEM_COPY( string, cur, len );
           string[len] = 0;
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+          if ( token.type == T1_TOKEN_TYPE_STRING )
+            FT_TRACE4(( " (%s)", string ));
+          else
+            FT_TRACE4(( " /%s", string ));
+#endif
+
           *(FT_String**)q = string;
         }
         break;
@@ -1213,6 +1232,12 @@
           bbox->yMin = FT_RoundFix( temp[1] );
           bbox->xMax = FT_RoundFix( temp[2] );
           bbox->yMax = FT_RoundFix( temp[3] );
+
+          FT_TRACE4(( " [%d %d %d %d]",
+                      bbox->xMin / 65536,
+                      bbox->yMin / 65536,
+                      bbox->xMax / 65536,
+                      bbox->yMax / 65536 ));
         }
         break;
 
@@ -1251,6 +1276,7 @@
             skip_spaces( &cur, limit );
           }
 
+          FT_TRACE4(( " [" ));
           for ( i = 0; i < max_objects; i++ )
           {
             FT_BBox*  bbox = (FT_BBox*)objects[i];
@@ -1260,7 +1286,14 @@
             bbox->yMin = FT_RoundFix( temp[i +     max_objects] );
             bbox->xMax = FT_RoundFix( temp[i + 2 * max_objects] );
             bbox->yMax = FT_RoundFix( temp[i + 3 * max_objects] );
+
+            FT_TRACE4(( " [%d %d %d %d]",
+                        bbox->xMin / 65536,
+                        bbox->yMin / 65536,
+                        bbox->xMax / 65536,
+                        bbox->yMax / 65536 ));
           }
+          FT_TRACE4(( "]" ));
 
           FT_FREE( temp );
         }
@@ -1333,6 +1366,8 @@
       *(FT_Byte*)( (FT_Byte*)objects[0] + field->count_offset ) =
         (FT_Byte)num_elements;
 
+    FT_TRACE4(( " [" ));
+
     /* we now load each element, adjusting the field.offset on each one */
     token = elements;
     for ( ; num_elements > 0; num_elements--, token++ )
@@ -1351,6 +1386,8 @@
       fieldrec.offset += fieldrec.size;
     }
 
+    FT_TRACE4(( "]" ));
+
 #if 0  /* obsolete -- keep for reference */
     if ( pflags )
       *pflags |= 1L << field->flag_bit;
@@ -1410,6 +1447,8 @@
                                           bytes,
                                           max_bytes );
 
+    parser->cursor = cur;
+
     if ( delimiters )
     {
       if ( cur < parser->limit && *cur != '>' )
@@ -1419,11 +1458,9 @@
         goto Exit;
       }
 
-      cur++;
+      parser->cursor++;
     }
 
-    parser->cursor = cur;
-
   Exit:
     return error;
   }
@@ -1509,26 +1546,31 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1_builder_init                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given glyph builder.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    builder :: A pointer to the glyph builder to initialize.           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face    :: The current face object.                                */
-  /*                                                                       */
-  /*    size    :: The current size object.                                */
-  /*                                                                       */
-  /*    glyph   :: The current glyph object.                               */
-  /*                                                                       */
-  /*    hinting :: Whether hinting should be applied.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1_builder_init
+   *
+   * @Description:
+   *   Initializes a given glyph builder.
+   *
+   * @InOut:
+   *   builder ::
+   *     A pointer to the glyph builder to initialize.
+   *
+   * @Input:
+   *   face ::
+   *     The current face object.
+   *
+   *   size ::
+   *     The current size object.
+   *
+   *   glyph ::
+   *     The current glyph object.
+   *
+   *   hinting ::
+   *     Whether hinting should be applied.
+   */
   FT_LOCAL_DEF( void )
   t1_builder_init( T1_Builder    builder,
                    FT_Face       face,
@@ -1572,19 +1614,20 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1_builder_done                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a given glyph builder.  Its contents can still be used   */
-  /*    after the call, but the function saves important information       */
-  /*    within the corresponding glyph slot.                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    builder :: A pointer to the glyph builder to finalize.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1_builder_done
+   *
+   * @Description:
+   *   Finalizes a given glyph builder.  Its contents can still be used
+   *   after the call, but the function saves important information
+   *   within the corresponding glyph slot.
+   *
+   * @Input:
+   *   builder ::
+   *     A pointer to the glyph builder to finalize.
+   */
   FT_LOCAL_DEF( void )
   t1_builder_done( T1_Builder  builder )
   {
@@ -1769,26 +1812,31 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_builder_init                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given glyph builder.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    builder :: A pointer to the glyph builder to initialize.           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face    :: The current face object.                                */
-  /*                                                                       */
-  /*    size    :: The current size object.                                */
-  /*                                                                       */
-  /*    glyph   :: The current glyph object.                               */
-  /*                                                                       */
-  /*    hinting :: Whether hinting is active.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_builder_init
+   *
+   * @Description:
+   *   Initializes a given glyph builder.
+   *
+   * @InOut:
+   *   builder ::
+   *     A pointer to the glyph builder to initialize.
+   *
+   * @Input:
+   *   face ::
+   *     The current face object.
+   *
+   *   size ::
+   *     The current size object.
+   *
+   *   glyph ::
+   *     The current glyph object.
+   *
+   *   hinting ::
+   *     Whether hinting is active.
+   */
   FT_LOCAL_DEF( void )
   cff_builder_init( CFF_Builder*   builder,
                     TT_Face        face,
@@ -1841,19 +1889,20 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    cff_builder_done                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a given glyph builder.  Its contents can still be used   */
-  /*    after the call, but the function saves important information       */
-  /*    within the corresponding glyph slot.                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    builder :: A pointer to the glyph builder to finalize.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   cff_builder_done
+   *
+   * @Description:
+   *   Finalizes a given glyph builder.  Its contents can still be used
+   *   after the call, but the function saves important information
+   *   within the corresponding glyph slot.
+   *
+   * @Input:
+   *   builder ::
+   *     A pointer to the glyph builder to finalize.
+   */
   FT_LOCAL_DEF( void )
   cff_builder_done( CFF_Builder*  builder )
   {
@@ -1993,6 +2042,14 @@
     first = outline->n_contours <= 1
             ? 0 : outline->contours[outline->n_contours - 2] + 1;
 
+    /* in malformed fonts it can happen that a contour was started */
+    /* but no points were added                                    */
+    if ( outline->n_contours && first == outline->n_points )
+    {
+      outline->n_contours--;
+      return;
+    }
+
     /* We must not include the last point in the path if it */
     /* is located on the first point.                       */
     if ( outline->n_points > 1 )
@@ -2033,26 +2090,31 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ps_builder_init                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given glyph builder.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    builder :: A pointer to the glyph builder to initialize.           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face    :: The current face object.                                */
-  /*                                                                       */
-  /*    size    :: The current size object.                                */
-  /*                                                                       */
-  /*    glyph   :: The current glyph object.                               */
-  /*                                                                       */
-  /*    hinting :: Whether hinting should be applied.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ps_builder_init
+   *
+   * @Description:
+   *   Initializes a given glyph builder.
+   *
+   * @InOut:
+   *   builder ::
+   *     A pointer to the glyph builder to initialize.
+   *
+   * @Input:
+   *   face ::
+   *     The current face object.
+   *
+   *   size ::
+   *     The current size object.
+   *
+   *   glyph ::
+   *     The current glyph object.
+   *
+   *   hinting ::
+   *     Whether hinting should be applied.
+   */
   FT_LOCAL_DEF( void )
   ps_builder_init( PS_Builder*  ps_builder,
                    void*        builder,
@@ -2116,19 +2178,20 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ps_builder_done                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a given glyph builder.  Its contents can still be used   */
-  /*    after the call, but the function saves important information       */
-  /*    within the corresponding glyph slot.                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    builder :: A pointer to the glyph builder to finalize.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ps_builder_done
+   *
+   * @Description:
+   *   Finalizes a given glyph builder.  Its contents can still be used
+   *   after the call, but the function saves important information
+   *   within the corresponding glyph slot.
+   *
+   * @Input:
+   *   builder ::
+   *     A pointer to the glyph builder to finalize.
+   */
   FT_LOCAL_DEF( void )
   ps_builder_done( PS_Builder*  builder )
   {
@@ -2336,23 +2399,26 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ps_decoder_init                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Creates a wrapper decoder for use in the combined                  */
-  /*    Type 1 / CFF interpreter.                                          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    ps_decoder :: A pointer to the decoder to initialize.              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    decoder    :: A pointer to the original decoder.                   */
-  /*                                                                       */
-  /*    is_t1      :: Flag indicating Type 1 or CFF                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ps_decoder_init
+   *
+   * @Description:
+   *   Creates a wrapper decoder for use in the combined
+   *   Type 1 / CFF interpreter.
+   *
+   * @InOut:
+   *   ps_decoder ::
+   *     A pointer to the decoder to initialize.
+   *
+   * @Input:
+   *   decoder ::
+   *     A pointer to the original decoder.
+   *
+   *   is_t1 ::
+   *     Flag indicating Type 1 or CFF
+   */
   FT_LOCAL_DEF( void )
   ps_decoder_init( PS_Decoder*  ps_decoder,
                    void*        decoder,
diff --git a/thirdparty/freetype/src/psaux/psobjs.h b/thirdparty/freetype/src/psaux/psobjs.h
index 8e0fe5fa4c..9466a1d075 100644
--- a/thirdparty/freetype/src/psaux/psobjs.h
+++ b/thirdparty/freetype/src/psaux/psobjs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psobjs.h                                                               */
-/*                                                                         */
-/*    Auxiliary functions for PostScript fonts (specification).            */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psobjs.h
+ *
+ *   Auxiliary functions for PostScript fonts (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSOBJS_H_
diff --git a/thirdparty/freetype/src/psaux/psread.c b/thirdparty/freetype/src/psaux/psread.c
index 719863ce17..86bfc03c6e 100644
--- a/thirdparty/freetype/src/psaux/psread.c
+++ b/thirdparty/freetype/src/psaux/psread.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psread.c                                                               */
-/*                                                                         */
-/*    Adobe's code for stream handling (body).                             */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psread.c
+ *
+ *   Adobe's code for stream handling (body).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
@@ -105,7 +105,7 @@
   FT_LOCAL_DEF( FT_Bool )
   cf2_buf_isEnd( CF2_Buffer  buf )
   {
-    return (FT_Bool)( buf->ptr >= buf->end );
+    return FT_BOOL( buf->ptr >= buf->end );
   }
 
 
diff --git a/thirdparty/freetype/src/psaux/psread.h b/thirdparty/freetype/src/psaux/psread.h
index 464b29ba74..9e55fe0447 100644
--- a/thirdparty/freetype/src/psaux/psread.h
+++ b/thirdparty/freetype/src/psaux/psread.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psread.h                                                               */
-/*                                                                         */
-/*    Adobe's code for stream handling (specification).                    */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psread.h
+ *
+ *   Adobe's code for stream handling (specification).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSREAD_H_
diff --git a/thirdparty/freetype/src/psaux/psstack.c b/thirdparty/freetype/src/psaux/psstack.c
index 69d063349a..6659068001 100644
--- a/thirdparty/freetype/src/psaux/psstack.c
+++ b/thirdparty/freetype/src/psaux/psstack.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psstack.c                                                              */
-/*                                                                         */
-/*    Adobe's code for emulating a CFF stack (body).                       */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psstack.c
+ *
+ *   Adobe's code for emulating a CFF stack (body).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #include "psft.h"
@@ -258,6 +258,9 @@
       return;
     }
 
+    /* before C99 it is implementation-defined whether    */
+    /* the result of `%' is negative if the first operand */
+    /* is negative                                        */
     if ( shift < 0 )
       shift = -( ( -shift ) % count );
     else
diff --git a/thirdparty/freetype/src/psaux/psstack.h b/thirdparty/freetype/src/psaux/psstack.h
index 38f7b41c68..18cd39bc6a 100644
--- a/thirdparty/freetype/src/psaux/psstack.h
+++ b/thirdparty/freetype/src/psaux/psstack.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psstack.h                                                              */
-/*                                                                         */
-/*    Adobe's code for emulating a CFF stack (specification).              */
-/*                                                                         */
-/*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psstack.h
+ *
+ *   Adobe's code for emulating a CFF stack (specification).
+ *
+ * Copyright 2007-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSSTACK_H_
diff --git a/thirdparty/freetype/src/psaux/pstypes.h b/thirdparty/freetype/src/psaux/pstypes.h
index dfbaa3d475..041287e8d5 100644
--- a/thirdparty/freetype/src/psaux/pstypes.h
+++ b/thirdparty/freetype/src/psaux/pstypes.h
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pstypes.h                                                              */
-/*                                                                         */
-/*    Adobe's code for defining data types (specification only).           */
-/*                                                                         */
-/*  Copyright 2011-2013 Adobe Systems Incorporated.                        */
-/*                                                                         */
-/*  This software, and all works of authorship, whether in source or       */
-/*  object code form as indicated by the copyright notice(s) included      */
-/*  herein (collectively, the "Work") is made available, and may only be   */
-/*  used, modified, and distributed under the FreeType Project License,    */
-/*  LICENSE.TXT.  Additionally, subject to the terms and conditions of the */
-/*  FreeType Project License, each contributor to the Work hereby grants   */
-/*  to any individual or legal entity exercising permissions granted by    */
-/*  the FreeType Project License and this section (hereafter, "You" or     */
-/*  "Your") a perpetual, worldwide, non-exclusive, no-charge,              */
-/*  royalty-free, irrevocable (except as stated in this section) patent    */
-/*  license to make, have made, use, offer to sell, sell, import, and      */
-/*  otherwise transfer the Work, where such license applies only to those  */
-/*  patent claims licensable by such contributor that are necessarily      */
-/*  infringed by their contribution(s) alone or by combination of their    */
-/*  contribution(s) with the Work to which such contribution(s) was        */
-/*  submitted.  If You institute patent litigation against any entity      */
-/*  (including a cross-claim or counterclaim in a lawsuit) alleging that   */
-/*  the Work or a contribution incorporated within the Work constitutes    */
-/*  direct or contributory patent infringement, then any patent licenses   */
-/*  granted to You under this License for that Work shall terminate as of  */
-/*  the date such litigation is filed.                                     */
-/*                                                                         */
-/*  By using, modifying, or distributing the Work you indicate that you    */
-/*  have read and understood the terms and conditions of the               */
-/*  FreeType Project License as well as those provided in this section,    */
-/*  and you accept them fully.                                             */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pstypes.h
+ *
+ *   Adobe's code for defining data types (specification only).
+ *
+ * Copyright 2011-2013 Adobe Systems Incorporated.
+ *
+ * This software, and all works of authorship, whether in source or
+ * object code form as indicated by the copyright notice(s) included
+ * herein (collectively, the "Work") is made available, and may only be
+ * used, modified, and distributed under the FreeType Project License,
+ * LICENSE.TXT.  Additionally, subject to the terms and conditions of the
+ * FreeType Project License, each contributor to the Work hereby grants
+ * to any individual or legal entity exercising permissions granted by
+ * the FreeType Project License and this section (hereafter, "You" or
+ * "Your") a perpetual, worldwide, non-exclusive, no-charge,
+ * royalty-free, irrevocable (except as stated in this section) patent
+ * license to make, have made, use, offer to sell, sell, import, and
+ * otherwise transfer the Work, where such license applies only to those
+ * patent claims licensable by such contributor that are necessarily
+ * infringed by their contribution(s) alone or by combination of their
+ * contribution(s) with the Work to which such contribution(s) was
+ * submitted.  If You institute patent litigation against any entity
+ * (including a cross-claim or counterclaim in a lawsuit) alleging that
+ * the Work or a contribution incorporated within the Work constitutes
+ * direct or contributory patent infringement, then any patent licenses
+ * granted to You under this License for that Work shall terminate as of
+ * the date such litigation is filed.
+ *
+ * By using, modifying, or distributing the Work you indicate that you
+ * have read and understood the terms and conditions of the
+ * FreeType Project License as well as those provided in this section,
+ * and you accept them fully.
+ *
+ */
 
 
 #ifndef PSTYPES_H_
diff --git a/thirdparty/freetype/src/psaux/rules.mk b/thirdparty/freetype/src/psaux/rules.mk
index a87bfe9687..2de734d547 100644
--- a/thirdparty/freetype/src/psaux/rules.mk
+++ b/thirdparty/freetype/src/psaux/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/psaux/t1cmap.c b/thirdparty/freetype/src/psaux/t1cmap.c
index 112a7892ba..d62d2d5c81 100644
--- a/thirdparty/freetype/src/psaux/t1cmap.c
+++ b/thirdparty/freetype/src/psaux/t1cmap.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1cmap.c                                                               */
-/*                                                                         */
-/*    Type 1 character map support (body).                                 */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1cmap.c
+ *
+ *   Type 1 character map support (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "t1cmap.h"
@@ -305,6 +305,9 @@
     FT_UNUSED( pointer );
 
 
+    if ( !psnames->unicodes_init )
+      return FT_THROW( Unimplemented_Feature );
+
     return psnames->unicodes_init( memory,
                                    unicodes,
                                    (FT_UInt)face->type1.num_glyphs,
diff --git a/thirdparty/freetype/src/psaux/t1cmap.h b/thirdparty/freetype/src/psaux/t1cmap.h
index 4308e31d2d..d325e7b5a6 100644
--- a/thirdparty/freetype/src/psaux/t1cmap.h
+++ b/thirdparty/freetype/src/psaux/t1cmap.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1cmap.h                                                               */
-/*                                                                         */
-/*    Type 1 character map support (specification).                        */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1cmap.h
+ *
+ *   Type 1 character map support (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1CMAP_H_
diff --git a/thirdparty/freetype/src/psaux/t1decode.c b/thirdparty/freetype/src/psaux/t1decode.c
index 6ad145661f..c2b3729b53 100644
--- a/thirdparty/freetype/src/psaux/t1decode.c
+++ b/thirdparty/freetype/src/psaux/t1decode.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1decode.c                                                             */
-/*                                                                         */
-/*    PostScript Type 1 decoding routines (body).                          */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1decode.c
+ *
+ *   PostScript Type 1 decoding routines (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -31,14 +31,14 @@
 /* ensure proper sign extension */
 #define Fix2Int( f )  ( (FT_Int)(FT_Short)( (f) >> 16 ) )
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1decode
+#define FT_COMPONENT  t1decode
 
 
   typedef enum  T1_Operator_
@@ -109,24 +109,26 @@
   };
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1_lookup_glyph_by_stdcharcode_ps                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Looks up a given glyph by its StandardEncoding charcode.  Used to  */
-  /*    implement the SEAC Type 1 operator in the Adobe engine             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: The current face object.                               */
-  /*                                                                       */
-  /*    charcode :: The character code to look for.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A glyph index in the font face.  Returns -1 if the corresponding   */
-  /*    glyph wasn't found.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1_lookup_glyph_by_stdcharcode_ps
+   *
+   * @Description:
+   *   Looks up a given glyph by its StandardEncoding charcode.  Used to
+   *   implement the SEAC Type 1 operator in the Adobe engine
+   *
+   * @Input:
+   *   face ::
+   *     The current face object.
+   *
+   *   charcode ::
+   *     The character code to look for.
+   *
+   * @Return:
+   *   A glyph index in the font face.  Returns -1 if the corresponding
+   *   glyph wasn't found.
+   */
   FT_LOCAL_DEF( FT_Int )
   t1_lookup_glyph_by_stdcharcode_ps( PS_Decoder*  decoder,
                                      FT_Int       charcode )
@@ -159,24 +161,27 @@
 
 
 #ifdef T1_CONFIG_OPTION_OLD_ENGINE
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1_lookup_glyph_by_stdcharcode                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Looks up a given glyph by its StandardEncoding charcode.  Used to  */
-  /*    implement the SEAC Type 1 operator.                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: The current face object.                               */
-  /*                                                                       */
-  /*    charcode :: The character code to look for.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A glyph index in the font face.  Returns -1 if the corresponding   */
-  /*    glyph wasn't found.                                                */
-  /*                                                                       */
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1_lookup_glyph_by_stdcharcode
+   *
+   * @Description:
+   *   Looks up a given glyph by its StandardEncoding charcode.  Used to
+   *   implement the SEAC Type 1 operator.
+   *
+   * @Input:
+   *   face ::
+   *     The current face object.
+   *
+   *   charcode ::
+   *     The character code to look for.
+   *
+   * @Return:
+   *   A glyph index in the font face.  Returns -1 if the corresponding
+   *   glyph wasn't found.
+   */
   static FT_Int
   t1_lookup_glyph_by_stdcharcode( T1_Decoder  decoder,
                                   FT_Int      charcode )
@@ -217,30 +222,36 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1operator_seac                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Implements the `seac' Type 1 operator for a Type 1 decoder.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    decoder :: The current CID decoder.                                */
-  /*                                                                       */
-  /*    asb     :: The accent's side bearing.                              */
-  /*                                                                       */
-  /*    adx     :: The horizontal offset of the accent.                    */
-  /*                                                                       */
-  /*    ady     :: The vertical offset of the accent.                      */
-  /*                                                                       */
-  /*    bchar   :: The base character's StandardEncoding charcode.         */
-  /*                                                                       */
-  /*    achar   :: The accent character's StandardEncoding charcode.       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1operator_seac
+   *
+   * @Description:
+   *   Implements the `seac' Type 1 operator for a Type 1 decoder.
+   *
+   * @Input:
+   *   decoder ::
+   *     The current CID decoder.
+   *
+   *   asb ::
+   *     The accent's side bearing.
+   *
+   *   adx ::
+   *     The horizontal offset of the accent.
+   *
+   *   ady ::
+   *     The vertical offset of the accent.
+   *
+   *   bchar ::
+   *     The base character's StandardEncoding charcode.
+   *
+   *   achar ::
+   *     The accent character's StandardEncoding charcode.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   t1operator_seac( T1_Decoder  decoder,
                    FT_Pos      asb,
@@ -399,24 +410,27 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1_decoder_parse_charstrings                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parses a given Type 1 charstrings program.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    decoder         :: The current Type 1 decoder.                     */
-  /*                                                                       */
-  /*    charstring_base :: The base address of the charstring stream.      */
-  /*                                                                       */
-  /*    charstring_len  :: The length in bytes of the charstring stream.   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1_decoder_parse_charstrings
+   *
+   * @Description:
+   *   Parses a given Type 1 charstrings program.
+   *
+   * @Input:
+   *   decoder ::
+   *     The current Type 1 decoder.
+   *
+   *   charstring_base ::
+   *     The base address of the charstring stream.
+   *
+   *   charstring_len ::
+   *     The length in bytes of the charstring stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   t1_decoder_parse_charstrings( T1_Decoder  decoder,
                                 FT_Byte*    charstring_base,
@@ -466,9 +480,6 @@
     if ( decoder->buildchar && decoder->len_buildchar > 0 )
       FT_ARRAY_ZERO( decoder->buildchar, decoder->len_buildchar );
 
-    FT_TRACE4(( "\n"
-                "Start charstring\n" ));
-
     zone->base           = charstring_base;
     limit = zone->limit  = charstring_base + charstring_len;
     ip    = zone->cursor = zone->base;
@@ -503,11 +514,11 @@
       }
 #endif
 
-      /*********************************************************************/
-      /*                                                                   */
-      /* Decode operator or operand                                        */
-      /*                                                                   */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Decode operator or operand
+       *
+       */
 
       /* first of all, decompress operator or value */
       switch ( *ip++ )
@@ -710,11 +721,11 @@
         large_int = FALSE;
       }
 
-      /*********************************************************************/
-      /*                                                                   */
-      /*  Push value on stack, or process operator                         */
-      /*                                                                   */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Push value on stack, or process operator
+       *
+       */
       if ( op == op_none )
       {
         if ( top - decoder->stack >= T1_MAX_CHARSTRINGS_OPERANDS )
@@ -752,16 +763,17 @@
         subr_no = Fix2Int( top[1] );
         arg_cnt = Fix2Int( top[0] );
 
-        /***********************************************************/
-        /*                                                         */
-        /* remove all operands to callothersubr from the stack     */
-        /*                                                         */
-        /* for handled othersubrs, where we know the number of     */
-        /* arguments, we increase the stack by the value of        */
-        /* known_othersubr_result_cnt                              */
-        /*                                                         */
-        /* for unhandled othersubrs the following pops adjust the  */
-        /* stack pointer as necessary                              */
+        /************************************************************
+         *
+         * remove all operands to callothersubr from the stack
+         *
+         * for handled othersubrs, where we know the number of
+         * arguments, we increase the stack by the value of
+         * known_othersubr_result_cnt
+         *
+         * for unhandled othersubrs the following pops adjust the
+         * stack pointer as necessary
+         */
 
         if ( arg_cnt > top - decoder->stack )
           goto Stack_Underflow;
@@ -1223,7 +1235,10 @@
           /* the glyph's metrics (lsb + advance width), not load the   */
           /* rest of it; so exit immediately                           */
           if ( builder->metrics_only )
+          {
+            FT_TRACE4(( "\n" ));
             return FT_Err_Ok;
+          }
 
           break;
 
@@ -1255,7 +1270,10 @@
           /* the glyph's metrics (lsb + advance width), not load the   */
           /* rest of it; so exit immediately                           */
           if ( builder->metrics_only )
+          {
+            FT_TRACE4(( "\n" ));
             return FT_Err_Ok;
+          }
 
           break;
 
@@ -1638,26 +1656,31 @@
     return FT_THROW( Stack_Underflow );
   }
 
-#else /* T1_CONFIG_OPTION_OLD_ENGINE */
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    t1_decoder_parse_metrics                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parses a given Type 1 charstrings program to extract width         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    decoder         :: The current Type 1 decoder.                     */
-  /*                                                                       */
-  /*    charstring_base :: The base address of the charstring stream.      */
-  /*                                                                       */
-  /*    charstring_len  :: The length in bytes of the charstring stream.   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+
+#else /* !T1_CONFIG_OPTION_OLD_ENGINE */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   t1_decoder_parse_metrics
+   *
+   * @Description:
+   *   Parses a given Type 1 charstrings program to extract width
+   *
+   * @Input:
+   *   decoder ::
+   *     The current Type 1 decoder.
+   *
+   *   charstring_base ::
+   *     The base address of the charstring stream.
+   *
+   *   charstring_len ::
+   *     The length in bytes of the charstring stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   t1_decoder_parse_metrics( T1_Decoder  decoder,
                             FT_Byte*    charstring_base,
@@ -1680,9 +1703,6 @@
 
     builder->parse_state = T1_Parse_Start;
 
-    FT_TRACE4(( "\n"
-                "Start charstring: get width\n" ));
-
     zone->base           = charstring_base;
     limit = zone->limit  = charstring_base + charstring_len;
     ip    = zone->cursor = zone->base;
@@ -1703,11 +1723,11 @@
       }
 #endif
 
-      /*********************************************************************/
-      /*                                                                   */
-      /* Decode operator or operand                                        */
-      /*                                                                   */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Decode operator or operand
+       *
+       */
 
       /* first of all, decompress operator or value */
       switch ( *ip++ )
@@ -1817,11 +1837,11 @@
         }
       }
 
-      /*********************************************************************/
-      /*                                                                   */
-      /*  Push value on stack, or process operator                         */
-      /*                                                                   */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Push value on stack, or process operator
+       *
+       */
       if ( op == op_none )
       {
         if ( top - decoder->stack >= T1_MAX_CHARSTRINGS_OPERANDS )
@@ -1875,6 +1895,7 @@
           /* we only want to compute the glyph's metrics */
           /* (lsb + advance width), not load the rest of */
           /* it; so exit immediately                     */
+          FT_TRACE4(( "\n" ));
           return FT_Err_Ok;
 
         case op_sbw:
@@ -1893,6 +1914,7 @@
           /* we only want to compute the glyph's metrics */
           /* (lsb + advance width), not load the rest of */
           /* it; so exit immediately                     */
+          FT_TRACE4(( "\n" ));
           return FT_Err_Ok;
 
         default:
@@ -1917,7 +1939,8 @@
   Stack_Underflow:
     return FT_THROW( Stack_Underflow );
   }
-#endif /* T1_CONFIG_OPTION_OLD_ENGINE */
+
+#endif /* !T1_CONFIG_OPTION_OLD_ENGINE */
 
 
   /* initialize T1 decoder */
@@ -1934,7 +1957,7 @@
   {
     FT_ZERO( decoder );
 
-    /* retrieve PSNames interface from list of current modules */
+    /* retrieve `psnames' interface from list of current modules */
     {
       FT_Service_PsCMaps  psnames;
 
diff --git a/thirdparty/freetype/src/psaux/t1decode.h b/thirdparty/freetype/src/psaux/t1decode.h
index 1d9718d678..1b5d6263d3 100644
--- a/thirdparty/freetype/src/psaux/t1decode.h
+++ b/thirdparty/freetype/src/psaux/t1decode.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1decode.h                                                             */
-/*                                                                         */
-/*    PostScript Type 1 decoding routines (specification).                 */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1decode.h
+ *
+ *   PostScript Type 1 decoding routines (specification).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1DECODE_H_
diff --git a/thirdparty/freetype/src/pshinter/module.mk b/thirdparty/freetype/src/pshinter/module.mk
index 06707be3b4..0a12a260e1 100644
--- a/thirdparty/freetype/src/pshinter/module.mk
+++ b/thirdparty/freetype/src/pshinter/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/pshinter/pshalgo.c b/thirdparty/freetype/src/pshinter/pshalgo.c
index b98077c62e..0c5ae62699 100644
--- a/thirdparty/freetype/src/pshinter/pshalgo.c
+++ b/thirdparty/freetype/src/pshinter/pshalgo.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshalgo.c                                                              */
-/*                                                                         */
-/*    PostScript hinting algorithm (body).                                 */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used        */
-/*  modified and distributed under the terms of the FreeType project       */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshalgo.c
+ *
+ *   PostScript hinting algorithm (body).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used
+ * modified and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,7 +26,7 @@
 
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pshalgo
+#define FT_COMPONENT  pshalgo
 
 
 #ifdef DEBUG_HINTER
@@ -53,8 +53,8 @@
   psh_hint_overlap( PSH_Hint  hint1,
                     PSH_Hint  hint2 )
   {
-    return hint1->org_pos + hint1->org_len >= hint2->org_pos &&
-           hint2->org_pos + hint2->org_len >= hint1->org_pos;
+    return ADD_INT( hint1->org_pos, hint1->org_len ) >= hint2->org_pos &&
+           ADD_INT( hint2->org_pos, hint2->org_len ) >= hint1->org_pos;
   }
 
 
@@ -479,7 +479,7 @@
 
       if ( dimension == 1 )
         psh_blues_snap_stem( &globals->blues,
-                             hint->org_pos + hint->org_len,
+                             ADD_INT( hint->org_pos, hint->org_len ),
                              hint->org_pos,
                              &align );
 
@@ -658,8 +658,8 @@
 #if 0  /* not used for now, experimental */
 
  /*
-  *  A variant to perform "light" hinting (i.e. FT_RENDER_MODE_LIGHT)
-  *  of stems
+  * A variant to perform "light" hinting (i.e. FT_RENDER_MODE_LIGHT)
+  * of stems
   */
   static void
   psh_hint_align_light( PSH_Hint     hint,
@@ -703,7 +703,7 @@
 
       if ( dimension == 1 )
         psh_blues_snap_stem( &globals->blues,
-                             hint->org_pos + hint->org_len,
+                             ADD_INT( hint->org_pos, hint->org_len ),
                              hint->org_pos,
                              &align );
 
@@ -1538,8 +1538,8 @@
             PSH_Hint  hint = sort[nn];
 
 
-            if ( org_u >= hint->org_pos                 &&
-                org_u <= hint->org_pos + hint->org_len )
+            if ( org_u >=          hint->org_pos                  &&
+                 org_u <= ADD_INT( hint->org_pos, hint->org_len ) )
             {
               point->hint = hint;
               break;
diff --git a/thirdparty/freetype/src/pshinter/pshalgo.h b/thirdparty/freetype/src/pshinter/pshalgo.h
index c50683fbec..6859e95cd2 100644
--- a/thirdparty/freetype/src/pshinter/pshalgo.h
+++ b/thirdparty/freetype/src/pshinter/pshalgo.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshalgo.h                                                              */
-/*                                                                         */
-/*    PostScript hinting algorithm (specification).                        */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshalgo.h
+ *
+ *   PostScript hinting algorithm (specification).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSHALGO_H_
diff --git a/thirdparty/freetype/src/pshinter/pshglob.c b/thirdparty/freetype/src/pshinter/pshglob.c
index accc04921d..b021e6e42a 100644
--- a/thirdparty/freetype/src/pshinter/pshglob.c
+++ b/thirdparty/freetype/src/pshinter/pshglob.c
@@ -1,25 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshglob.c                                                              */
-/*                                                                         */
-/*    PostScript hinter global hinting management (body).                  */
-/*    Inspired by the new auto-hinter module.                              */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used        */
-/*  modified and distributed under the terms of the FreeType project       */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshglob.c
+ *
+ *   PostScript hinter global hinting management (body).
+ *   Inspired by the new auto-hinter module.
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used
+ * modified and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
 #include FT_FREETYPE_H
 #include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_CALC_H
 #include "pshglob.h"
 
 #ifdef DEBUG_HINTER
@@ -568,7 +569,7 @@
 
     for ( ; count > 0; count--, zone++ )
     {
-      delta = stem_top - zone->org_bottom;
+      delta = SUB_LONG( stem_top, zone->org_bottom );
       if ( delta < -blues->blue_fuzz )
         break;
 
@@ -590,7 +591,7 @@
 
     for ( ; count > 0; count--, zone-- )
     {
-      delta = zone->org_top - stem_bot;
+      delta = SUB_LONG( zone->org_top, stem_bot );
       if ( delta < -blues->blue_fuzz )
         break;
 
diff --git a/thirdparty/freetype/src/pshinter/pshglob.h b/thirdparty/freetype/src/pshinter/pshglob.h
index cf80bf40e6..0049d4c0bc 100644
--- a/thirdparty/freetype/src/pshinter/pshglob.h
+++ b/thirdparty/freetype/src/pshinter/pshglob.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshglob.h                                                              */
-/*                                                                         */
-/*    PostScript hinter global hinting management.                         */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshglob.h
+ *
+ *   PostScript hinter global hinting management.
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSHGLOB_H_
@@ -36,27 +36,27 @@ FT_BEGIN_HEADER
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* @constant:                                                            */
-  /*    PS_GLOBALS_MAX_BLUE_ZONES                                          */
-  /*                                                                       */
-  /* @description:                                                         */
-  /*    The maximum number of blue zones in a font global hints structure. */
-  /*    See @PS_Globals_BluesRec.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @constant:
+   *   PS_GLOBALS_MAX_BLUE_ZONES
+   *
+   * @description:
+   *   The maximum number of blue zones in a font global hints structure.
+   *   See @PS_Globals_BluesRec.
+   */
 #define PS_GLOBALS_MAX_BLUE_ZONES  16
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* @constant:                                                            */
-  /*    PS_GLOBALS_MAX_STD_WIDTHS                                          */
-  /*                                                                       */
-  /* @description:                                                         */
-  /*    The maximum number of standard and snap widths in either the       */
-  /*    horizontal or vertical direction.  See @PS_Globals_WidthsRec.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @constant:
+   *   PS_GLOBALS_MAX_STD_WIDTHS
+   *
+   * @description:
+   *   The maximum number of standard and snap widths in either the
+   *   horizontal or vertical direction.  See @PS_Globals_WidthsRec.
+   */
 #define PS_GLOBALS_MAX_STD_WIDTHS  16
 
 
diff --git a/thirdparty/freetype/src/pshinter/pshinter.c b/thirdparty/freetype/src/pshinter/pshinter.c
index 0eedac452d..16c3a0a117 100644
--- a/thirdparty/freetype/src/pshinter/pshinter.c
+++ b/thirdparty/freetype/src/pshinter/pshinter.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshinter.c                                                             */
-/*                                                                         */
-/*    FreeType PostScript Hinting module                                   */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshinter.c
+ *
+ *   FreeType PostScript Hinting module
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -22,7 +22,6 @@
 #include "pshalgo.c"
 #include "pshglob.c"
 #include "pshmod.c"
-#include "pshpic.c"
 #include "pshrec.c"
 
 
diff --git a/thirdparty/freetype/src/pshinter/pshmod.c b/thirdparty/freetype/src/pshinter/pshmod.c
index 0b8f6f99b8..2d36ea2a6a 100644
--- a/thirdparty/freetype/src/pshinter/pshmod.c
+++ b/thirdparty/freetype/src/pshinter/pshmod.c
@@ -1,26 +1,25 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshmod.c                                                               */
-/*                                                                         */
-/*    FreeType PostScript hinter module implementation (body).             */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshmod.c
+ *
+ *   FreeType PostScript hinter module implementation (body).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
 #include FT_INTERNAL_OBJECTS_H
 #include "pshrec.h"
 #include "pshalgo.h"
-#include "pshpic.h"
 
 
   /* the Postscript Hinter module structure */
@@ -111,7 +110,7 @@
     0x10000L,
     0x20000L,
 
-    &PSHINTER_INTERFACE_GET,              /* module-specific interface */
+    &pshinter_interface,        /* module-specific interface */
 
     (FT_Module_Constructor)ps_hinter_init,  /* module_init   */
     (FT_Module_Destructor) ps_hinter_done,  /* module_done   */
diff --git a/thirdparty/freetype/src/pshinter/pshmod.h b/thirdparty/freetype/src/pshinter/pshmod.h
index 556de2fbc0..ea8771308a 100644
--- a/thirdparty/freetype/src/pshinter/pshmod.h
+++ b/thirdparty/freetype/src/pshinter/pshmod.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshmod.h                                                               */
-/*                                                                         */
-/*    PostScript hinter module interface (specification).                  */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshmod.h
+ *
+ *   PostScript hinter module interface (specification).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSHMOD_H_
diff --git a/thirdparty/freetype/src/pshinter/pshnterr.h b/thirdparty/freetype/src/pshinter/pshnterr.h
index b9d02d2956..fb9dbca2b1 100644
--- a/thirdparty/freetype/src/pshinter/pshnterr.h
+++ b/thirdparty/freetype/src/pshinter/pshnterr.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshnterr.h                                                             */
-/*                                                                         */
-/*    PS Hinter error codes (specification only).                          */
-/*                                                                         */
-/*  Copyright 2003-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the PSHinter error enumeration constants. */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * pshnterr.h
+ *
+ *   PS Hinter error codes (specification only).
+ *
+ * Copyright (C) 2003-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the PSHinter error enumeration constants.
+   *
+   */
 
 #ifndef PSHNTERR_H_
 #define PSHNTERR_H_
diff --git a/thirdparty/freetype/src/pshinter/pshpic.c b/thirdparty/freetype/src/pshinter/pshpic.c
deleted file mode 100644
index 465ad31885..0000000000
--- a/thirdparty/freetype/src/pshinter/pshpic.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshpic.c                                                               */
-/*                                                                         */
-/*    The FreeType position independent code services for pshinter module. */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "pshpic.h"
-#include "pshnterr.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from pshmod.c */
-  void
-  FT_Init_Class_pshinter_interface( FT_Library           library,
-                                    PSHinter_Interface*  clazz );
-
-  void
-  pshinter_module_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->pshinter )
-    {
-      FT_FREE( pic_container->pshinter );
-      pic_container->pshinter = NULL;
-    }
-  }
-
-
-  FT_Error
-  pshinter_module_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    PSHinterPIC*       container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->pshinter = container;
-
-    /* add call to initialization function when you add new scripts */
-    FT_Init_Class_pshinter_interface(
-      library, &container->pshinter_interface );
-
-    if ( error )
-      pshinter_module_class_pic_free( library );
-
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/pshinter/pshpic.h b/thirdparty/freetype/src/pshinter/pshpic.h
deleted file mode 100644
index 4469ba87c8..0000000000
--- a/thirdparty/freetype/src/pshinter/pshpic.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshpic.h                                                               */
-/*                                                                         */
-/*    The FreeType position independent code services for pshinter module. */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef PSHPIC_H_
-#define PSHPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define PSHINTER_INTERFACE_GET  pshinter_interface
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-#include FT_INTERNAL_POSTSCRIPT_HINTS_H
-
-FT_BEGIN_HEADER
-
-  typedef struct  PSHinterPIC_
-  {
-    PSHinter_Interface  pshinter_interface;
-
-  } PSHinterPIC;
-
-
-#define GET_PIC( lib )  ( (PSHinterPIC*)( (lib)->pic_container.pshinter ) )
-
-#define PSHINTER_INTERFACE_GET  ( GET_PIC( library )->pshinter_interface )
-
-  /* see pshpic.c for the implementation */
-  void
-  pshinter_module_class_pic_free( FT_Library  library );
-
-  FT_Error
-  pshinter_module_class_pic_init( FT_Library  library );
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-#endif /* PSHPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/pshinter/pshrec.c b/thirdparty/freetype/src/pshinter/pshrec.c
index 6648d13d60..9dd09efe4c 100644
--- a/thirdparty/freetype/src/pshinter/pshrec.c
+++ b/thirdparty/freetype/src/pshinter/pshrec.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshrec.c                                                               */
-/*                                                                         */
-/*    FreeType PostScript hints recorder (body).                           */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pshrec.c
+ *
+ *   FreeType PostScript hints recorder (body).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -28,7 +28,7 @@
 #include "pshnterr.h"
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_pshrec
+#define FT_COMPONENT  pshrec
 
 #ifdef DEBUG_HINTER
   PS_Hints  ps_debug_hints         = NULL;
@@ -666,7 +666,7 @@
       if ( len == -21 )
       {
         flags |= PS_HINT_FLAG_BOTTOM;
-        pos   += len;
+        pos    = ADD_INT( pos, len );
       }
       len = 0;
     }
@@ -1187,7 +1187,7 @@
       /* compute integer stem positions in font units */
       for ( n = 0; n < count * 2; n++ )
       {
-        y       += coords[n];
+        y        = ADD_LONG( y, coords[n] );
         stems[n] = FIXED_TO_INT( y );
       }
 
diff --git a/thirdparty/freetype/src/pshinter/pshrec.h b/thirdparty/freetype/src/pshinter/pshrec.h
index 7e3dfe0d53..02cc2102ec 100644
--- a/thirdparty/freetype/src/pshinter/pshrec.h
+++ b/thirdparty/freetype/src/pshinter/pshrec.h
@@ -1,31 +1,31 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pshrec.h                                                               */
-/*                                                                         */
-/*    Postscript (Type1/Type2) hints recorder (specification).             */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /**************************************************************************/
-  /*                                                                        */
-  /*  The functions defined here are called from the Type 1, CID and CFF    */
-  /*  font drivers to record the hints of a given character/glyph.          */
-  /*                                                                        */
-  /*  The hints are recorded in a unified format, and are later processed   */
-  /*  by the `optimizer' and `fitter' to adjust the outlines to the pixel   */
-  /*  grid.                                                                 */
-  /*                                                                        */
-  /**************************************************************************/
+/****************************************************************************
+ *
+ * pshrec.h
+ *
+ *   Postscript (Type1/Type2) hints recorder (specification).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /***************************************************************************
+   *
+   * The functions defined here are called from the Type 1, CID and CFF
+   * font drivers to record the hints of a given character/glyph.
+   *
+   * The hints are recorded in a unified format, and are later processed
+   * by the `optimizer' and `fitter' to adjust the outlines to the pixel
+   * grid.
+   *
+   */
 
 
 #ifndef PSHREC_H_
diff --git a/thirdparty/freetype/src/pshinter/rules.mk b/thirdparty/freetype/src/pshinter/rules.mk
index 966690efc2..58227d10f2 100644
--- a/thirdparty/freetype/src/pshinter/rules.mk
+++ b/thirdparty/freetype/src/pshinter/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2001-2018 by
+# Copyright (C) 2001-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -31,7 +31,6 @@ PSHINTER_COMPILE := $(CC) $(ANSIFLAGS)                                 \
 PSHINTER_DRV_SRC := $(PSHINTER_DIR)/pshalgo.c \
                     $(PSHINTER_DIR)/pshglob.c \
                     $(PSHINTER_DIR)/pshmod.c  \
-                    $(PSHINTER_DIR)/pshpic.c  \
                     $(PSHINTER_DIR)/pshrec.c
 
 
diff --git a/thirdparty/freetype/src/psnames/module.mk b/thirdparty/freetype/src/psnames/module.mk
index 410f48a191..0806a318a7 100644
--- a/thirdparty/freetype/src/psnames/module.mk
+++ b/thirdparty/freetype/src/psnames/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/psnames/psmodule.c b/thirdparty/freetype/src/psnames/psmodule.c
index 8929ebe751..0ec440e67b 100644
--- a/thirdparty/freetype/src/psnames/psmodule.c
+++ b/thirdparty/freetype/src/psnames/psmodule.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psmodule.c                                                             */
-/*                                                                         */
-/*    PSNames module implementation (body).                                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psmodule.c
+ *
+ *   psnames module implementation (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -24,16 +24,16 @@
 #include "psmodule.h"
 
   /*
-   *  The file `pstables.h' with its arrays and its function
-   *  `ft_get_adobe_glyph_index' is useful for other projects also (for
-   *  example, `pdfium' is using it).  However, if used as a C++ header,
-   *  including it in two different source files makes it necessary to use
-   *  `extern const' for the declaration of its arrays, otherwise the data
-   *  would be duplicated as mandated by the C++ standard.
+   * The file `pstables.h' with its arrays and its function
+   * `ft_get_adobe_glyph_index' is useful for other projects also (for
+   * example, `pdfium' is using it).  However, if used as a C++ header,
+   * including it in two different source files makes it necessary to use
+   * `extern const' for the declaration of its arrays, otherwise the data
+   * would be duplicated as mandated by the C++ standard.
    *
-   *  For this reason, we use `DEFINE_PS_TABLES' to guard the function
-   *  definitions, and `DEFINE_PS_TABLES_DATA' to provide both proper array
-   *  declarations and definitions.
+   * For this reason, we use `DEFINE_PS_TABLES' to guard the function
+   * definitions, and `DEFINE_PS_TABLES_DATA' to provide both proper array
+   * declarations and definitions.
    */
 #include "pstables.h"
 #define  DEFINE_PS_TABLES
@@ -41,7 +41,6 @@
 #include "pstables.h"
 
 #include "psnamerr.h"
-#include "pspic.h"
 
 
 #ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES
@@ -393,7 +392,9 @@
         /* Reallocate if the number of used entries is much smaller. */
         if ( count < num_glyphs / 2 )
         {
-          (void)FT_RENEW_ARRAY( table->maps, num_glyphs, count );
+          (void)FT_RENEW_ARRAY( table->maps,
+                                num_glyphs + EXTRA_GLYPH_LIST_SIZE,
+                                count );
           error = FT_Err_Ok;
         }
 
@@ -577,28 +578,16 @@
   FT_DEFINE_SERVICEDESCREC1(
     pscmaps_services,
 
-    FT_SERVICE_ID_POSTSCRIPT_CMAPS, &PSCMAPS_INTERFACE_GET )
+    FT_SERVICE_ID_POSTSCRIPT_CMAPS, &pscmaps_interface )
 
 
   static FT_Pointer
   psnames_get_service( FT_Module    module,
                        const char*  service_id )
   {
-    /* PSCMAPS_SERVICES_GET dereferences `library' in PIC mode */
-#ifdef FT_CONFIG_OPTION_PIC
-    FT_Library  library;
-
-
-    if ( !module )
-      return NULL;
-    library = module->library;
-    if ( !library )
-      return NULL;
-#else
     FT_UNUSED( module );
-#endif
 
-    return ft_service_list_lookup( PSCMAPS_SERVICES_GET, service_id );
+    return ft_service_list_lookup( pscmaps_services, service_id );
   }
 
 #endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */
@@ -621,7 +610,7 @@
     0x20000L,   /* driver requires FreeType 2 or above */
 
     PUT_PS_NAMES_SERVICE(
-      (void*)&PSCMAPS_INTERFACE_GET ),   /* module specific interface */
+      (void*)&pscmaps_interface ),   /* module specific interface */
 
     (FT_Module_Constructor)NULL,                                       /* module_init   */
     (FT_Module_Destructor) NULL,                                       /* module_done   */
diff --git a/thirdparty/freetype/src/psnames/psmodule.h b/thirdparty/freetype/src/psnames/psmodule.h
index 3e94f8b437..0df9a7d889 100644
--- a/thirdparty/freetype/src/psnames/psmodule.h
+++ b/thirdparty/freetype/src/psnames/psmodule.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psmodule.h                                                             */
-/*                                                                         */
-/*    High-level PSNames module interface (specification).                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psmodule.h
+ *
+ *   High-level psnames module interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PSMODULE_H_
diff --git a/thirdparty/freetype/src/psnames/psnamerr.h b/thirdparty/freetype/src/psnames/psnamerr.h
index 14eb76c99c..67ab1765d3 100644
--- a/thirdparty/freetype/src/psnames/psnamerr.h
+++ b/thirdparty/freetype/src/psnames/psnamerr.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psnamerr.h                                                             */
-/*                                                                         */
-/*    PS names module error codes (specification only).                    */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the PS names module error enumeration     */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * psnamerr.h
+ *
+ *   PS names module error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the PS names module error enumeration
+   * constants.
+   *
+   */
 
 #ifndef PSNAMERR_H_
 #define PSNAMERR_H_
diff --git a/thirdparty/freetype/src/psnames/psnames.c b/thirdparty/freetype/src/psnames/psnames.c
index febb80d594..4722f98831 100644
--- a/thirdparty/freetype/src/psnames/psnames.c
+++ b/thirdparty/freetype/src/psnames/psnames.c
@@ -1,26 +1,25 @@
-/***************************************************************************/
-/*                                                                         */
-/*  psnames.c                                                              */
-/*                                                                         */
-/*    FreeType PSNames module component (body only).                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * psnames.c
+ *
+ *   FreeType psnames module component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
 #include <ft2build.h>
 
 #include "psmodule.c"
-#include "pspic.c"
 
 
 /* END */
diff --git a/thirdparty/freetype/src/psnames/pspic.c b/thirdparty/freetype/src/psnames/pspic.c
deleted file mode 100644
index 85a06f3603..0000000000
--- a/thirdparty/freetype/src/psnames/pspic.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pspic.c                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services for psnames module.  */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "pspic.h"
-#include "psnamerr.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from psmodule.c */
-  FT_Error
-  FT_Create_Class_pscmaps_services( FT_Library           library,
-                                    FT_ServiceDescRec**  output_class );
-  void
-  FT_Destroy_Class_pscmaps_services( FT_Library          library,
-                                     FT_ServiceDescRec*  clazz );
-
-  void
-  FT_Init_Class_pscmaps_interface( FT_Library              library,
-                                   FT_Service_PsCMapsRec*  clazz );
-
-
-  void
-  psnames_module_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->psnames )
-    {
-      PSModulePIC*  container = (PSModulePIC*)pic_container->psnames;
-
-
-      if ( container->pscmaps_services )
-        FT_Destroy_Class_pscmaps_services( library,
-                                           container->pscmaps_services );
-      container->pscmaps_services = NULL;
-      FT_FREE( container );
-      pic_container->psnames = NULL;
-    }
-  }
-
-
-  FT_Error
-  psnames_module_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    PSModulePIC*       container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->psnames = container;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    error = FT_Create_Class_pscmaps_services(
-              library, &container->pscmaps_services );
-    if ( error )
-      goto Exit;
-    FT_Init_Class_pscmaps_interface( library,
-                                     &container->pscmaps_interface );
-
-  Exit:
-    if ( error )
-      psnames_module_class_pic_free( library );
-    return error;
-  }
-
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/psnames/pspic.h b/thirdparty/freetype/src/psnames/pspic.h
deleted file mode 100644
index 889780cc03..0000000000
--- a/thirdparty/freetype/src/psnames/pspic.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pspic.h                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services for psnames module.  */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef PSPIC_H_
-#define PSPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define PSCMAPS_SERVICES_GET   pscmaps_services
-#define PSCMAPS_INTERFACE_GET  pscmaps_interface
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-#include FT_SERVICE_POSTSCRIPT_CMAPS_H
-
-
-FT_BEGIN_HEADER
-
-  typedef struct  PSModulePIC_
-  {
-    FT_ServiceDescRec*     pscmaps_services;
-    FT_Service_PsCMapsRec  pscmaps_interface;
-
-  } PSModulePIC;
-
-
-#define GET_PIC( lib )                                     \
-          ( (PSModulePIC*)((lib)->pic_container.psnames) )
-#define PSCMAPS_SERVICES_GET   ( GET_PIC( library )->pscmaps_services )
-#define PSCMAPS_INTERFACE_GET  ( GET_PIC( library )->pscmaps_interface )
-
-
-  /* see pspic.c for the implementation */
-  void
-  psnames_module_class_pic_free( FT_Library  library );
-
-  FT_Error
-  psnames_module_class_pic_init( FT_Library  library );
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-#endif /* PSPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/psnames/pstables.h b/thirdparty/freetype/src/psnames/pstables.h
index 79545ee039..c0139bbc60 100644
--- a/thirdparty/freetype/src/psnames/pstables.h
+++ b/thirdparty/freetype/src/psnames/pstables.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pstables.h                                                             */
-/*                                                                         */
-/*    PostScript glyph names.                                              */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pstables.h
+ *
+ *   PostScript glyph names.
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
   /* This file has been generated automatically -- do not edit! */
@@ -609,12 +609,12 @@
 
 
   /*
-   *  This table is a compressed version of the Adobe Glyph List (AGL),
-   *  optimized for efficient searching.  It has been generated by the
-   *  `glnames.py' python script located in the `src/tools' directory.
+   * This table is a compressed version of the Adobe Glyph List (AGL),
+   * optimized for efficient searching.  It has been generated by the
+   * `glnames.py' python script located in the `src/tools' directory.
    *
-   *  The lookup function to get the Unicode value for a given string
-   *  is defined below the table.
+   * The lookup function to get the Unicode value for a given string
+   * is defined below the table.
    */
 
 #ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
@@ -4137,7 +4137,7 @@
 
 #ifdef  DEFINE_PS_TABLES
   /*
-   *  This function searches the compressed table efficiently.
+   * This function searches the compressed table efficiently.
    */
   static unsigned long
   ft_get_adobe_glyph_index( const char*  name,
diff --git a/thirdparty/freetype/src/psnames/rules.mk b/thirdparty/freetype/src/psnames/rules.mk
index 4d629d841c..dcc203e391 100644
--- a/thirdparty/freetype/src/psnames/rules.mk
+++ b/thirdparty/freetype/src/psnames/rules.mk
@@ -1,9 +1,9 @@
 #
-# FreeType 2 PSNames driver configuration rules
+# FreeType 2 psnames driver configuration rules
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -13,7 +13,7 @@
 # fully.
 
 
-# PSNames driver directory
+# psnames driver directory
 #
 PSNAMES_DIR := $(SRC_DIR)/psnames
 
@@ -26,20 +26,19 @@ PSNAMES_COMPILE := $(CC) $(ANSIFLAGS)                                \
                          $(FT_CFLAGS)
 
 
-# PSNames driver sources (i.e., C files)
+# psnames driver sources (i.e., C files)
 #
-PSNAMES_DRV_SRC := $(PSNAMES_DIR)/psmodule.c \
-                   $(PSNAMES_DIR)/pspic.c
+PSNAMES_DRV_SRC := $(PSNAMES_DIR)/psmodule.c
 
 
-# PSNames driver headers
+# psnames driver headers
 #
 PSNAMES_DRV_H := $(PSNAMES_DRV_SRC:%.c=%.h) \
                  $(PSNAMES_DIR)/psnamerr.h  \
                  $(PSNAMES_DIR)/pstables.h
 
 
-# PSNames driver object(s)
+# psnames driver object(s)
 #
 #   PSNAMES_DRV_OBJ_M is used during `multi' builds
 #   PSNAMES_DRV_OBJ_S is used during `single' builds
@@ -47,19 +46,19 @@ PSNAMES_DRV_H := $(PSNAMES_DRV_SRC:%.c=%.h) \
 PSNAMES_DRV_OBJ_M := $(PSNAMES_DRV_SRC:$(PSNAMES_DIR)/%.c=$(OBJ_DIR)/%.$O)
 PSNAMES_DRV_OBJ_S := $(OBJ_DIR)/psnames.$O
 
-# PSNames driver source file for single build
+# psnames driver source file for single build
 #
 PSNAMES_DRV_SRC_S := $(PSNAMES_DIR)/psnames.c
 
 
-# PSNames driver - single object
+# psnames driver - single object
 #
 $(PSNAMES_DRV_OBJ_S): $(PSNAMES_DRV_SRC_S) $(PSNAMES_DRV_SRC) \
                       $(FREETYPE_H) $(PSNAMES_DRV_H)
 	$(PSNAMES_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSNAMES_DRV_SRC_S))
 
 
-# PSNames driver - multiple objects
+# psnames driver - multiple objects
 #
 $(OBJ_DIR)/%.$O: $(PSNAMES_DIR)/%.c $(FREETYPE_H) $(PSNAMES_DRV_H)
 	$(PSNAMES_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
diff --git a/thirdparty/freetype/src/raster/ftmisc.h b/thirdparty/freetype/src/raster/ftmisc.h
index 7e40119071..a246569e3b 100644
--- a/thirdparty/freetype/src/raster/ftmisc.h
+++ b/thirdparty/freetype/src/raster/ftmisc.h
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftmisc.h                                                               */
-/*                                                                         */
-/*    Miscellaneous macros for stand-alone rasterizer (specification       */
-/*    only).                                                               */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used        */
-/*  modified and distributed under the terms of the FreeType project       */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /***************************************************/
-  /*                                                 */
-  /* This file is *not* portable!  You have to adapt */
-  /* its definitions to your platform.               */
-  /*                                                 */
-  /***************************************************/
+/****************************************************************************
+ *
+ * ftmisc.h
+ *
+ *   Miscellaneous macros for stand-alone rasterizer (specification
+ *   only).
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used
+ * modified and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /****************************************************
+   *
+   * This file is *not* portable!  You have to adapt
+   * its definitions to your platform.
+   *
+   */
 
 #ifndef FTMISC_H_
 #define FTMISC_H_
diff --git a/thirdparty/freetype/src/raster/ftraster.c b/thirdparty/freetype/src/raster/ftraster.c
index 4354730d54..798a72d02a 100644
--- a/thirdparty/freetype/src/raster/ftraster.c
+++ b/thirdparty/freetype/src/raster/ftraster.c
@@ -1,51 +1,51 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftraster.c                                                             */
-/*                                                                         */
-/*    The FreeType glyph rasterizer (body).                                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file can be compiled without the rest of the FreeType engine, by */
-  /* defining the STANDALONE_ macro when compiling it.  You also need to   */
-  /* put the files `ftimage.h' and `ftmisc.h' into the $(incdir)           */
-  /* directory.  Typically, you should do something like                   */
-  /*                                                                       */
-  /* - copy `src/raster/ftraster.c' (this file) to your current directory  */
-  /*                                                                       */
-  /* - copy `include/freetype/ftimage.h' and `src/raster/ftmisc.h' to your */
-  /*   current directory                                                   */
-  /*                                                                       */
-  /* - compile `ftraster' with the STANDALONE_ macro defined, as in        */
-  /*                                                                       */
-  /*     cc -c -DSTANDALONE_ ftraster.c                                    */
-  /*                                                                       */
-  /* The renderer can be initialized with a call to                        */
-  /* `ft_standard_raster.raster_new'; a bitmap can be generated            */
-  /* with a call to `ft_standard_raster.raster_render'.                    */
-  /*                                                                       */
-  /* See the comments and documentation in the file `ftimage.h' for more   */
-  /* details on how the raster works.                                      */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This is a rewrite of the FreeType 1.x scan-line converter             */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftraster.c
+ *
+ *   The FreeType glyph rasterizer (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * This file can be compiled without the rest of the FreeType engine, by
+   * defining the STANDALONE_ macro when compiling it.  You also need to
+   * put the files `ftimage.h' and `ftmisc.h' into the $(incdir)
+   * directory.  Typically, you should do something like
+   *
+   * - copy `src/raster/ftraster.c' (this file) to your current directory
+   *
+   * - copy `include/freetype/ftimage.h' and `src/raster/ftmisc.h' to your
+   *   current directory
+   *
+   * - compile `ftraster' with the STANDALONE_ macro defined, as in
+   *
+   *     cc -c -DSTANDALONE_ ftraster.c
+   *
+   * The renderer can be initialized with a call to
+   * `ft_standard_raster.raster_new'; a bitmap can be generated
+   * with a call to `ft_standard_raster.raster_render'.
+   *
+   * See the comments and documentation in the file `ftimage.h' for more
+   * details on how the raster works.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * This is a rewrite of the FreeType 1.x scan-line converter
+   *
+   */
 
 #ifdef STANDALONE_
 
@@ -65,82 +65,81 @@
 #include <ft2build.h>
 #include "ftraster.h"
 #include FT_INTERNAL_CALC_H   /* for FT_MulDiv and FT_MulDiv_No_Round */
-
-#include "rastpic.h"
+#include FT_OUTLINE_H         /* for FT_Outline_Get_CBox              */
 
 #endif /* !STANDALONE_ */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* A simple technical note on how the raster works                       */
-  /* -----------------------------------------------                       */
-  /*                                                                       */
-  /*   Converting an outline into a bitmap is achieved in several steps:   */
-  /*                                                                       */
-  /*   1 - Decomposing the outline into successive `profiles'.  Each       */
-  /*       profile is simply an array of scanline intersections on a given */
-  /*       dimension.  A profile's main attributes are                     */
-  /*                                                                       */
-  /*       o its scanline position boundaries, i.e. `Ymin' and `Ymax'      */
-  /*                                                                       */
-  /*       o an array of intersection coordinates for each scanline        */
-  /*         between `Ymin' and `Ymax'                                     */
-  /*                                                                       */
-  /*       o a direction, indicating whether it was built going `up' or    */
-  /*         `down', as this is very important for filling rules           */
-  /*                                                                       */
-  /*       o its drop-out mode                                             */
-  /*                                                                       */
-  /*   2 - Sweeping the target map's scanlines in order to compute segment */
-  /*       `spans' which are then filled.  Additionally, this pass         */
-  /*       performs drop-out control.                                      */
-  /*                                                                       */
-  /*   The outline data is parsed during step 1 only.  The profiles are    */
-  /*   built from the bottom of the render pool, used as a stack.  The     */
-  /*   following graphics shows the profile list under construction:       */
-  /*                                                                       */
-  /*     __________________________________________________________ _ _    */
-  /*    |         |                 |         |                 |          */
-  /*    | profile | coordinates for | profile | coordinates for |-->       */
-  /*    |    1    |  profile 1      |    2    |  profile 2      |-->       */
-  /*    |_________|_________________|_________|_________________|__ _ _    */
-  /*                                                                       */
-  /*    ^                                                       ^          */
-  /*    |                                                       |          */
-  /* start of render pool                                      top         */
-  /*                                                                       */
-  /*   The top of the profile stack is kept in the `top' variable.         */
-  /*                                                                       */
-  /*   As you can see, a profile record is pushed on top of the render     */
-  /*   pool, which is then followed by its coordinates/intersections.  If  */
-  /*   a change of direction is detected in the outline, a new profile is  */
-  /*   generated until the end of the outline.                             */
-  /*                                                                       */
-  /*   Note that when all profiles have been generated, the function       */
-  /*   Finalize_Profile_Table() is used to record, for each profile, its   */
-  /*   bottom-most scanline as well as the scanline above its upmost       */
-  /*   boundary.  These positions are called `y-turns' because they (sort  */
-  /*   of) correspond to local extrema.  They are stored in a sorted list  */
-  /*   built from the top of the render pool as a downwards stack:         */
-  /*                                                                       */
-  /*      _ _ _______________________________________                      */
-  /*                            |                    |                     */
-  /*                         <--| sorted list of     |                     */
-  /*                         <--|  extrema scanlines |                     */
-  /*      _ _ __________________|____________________|                     */
-  /*                                                                       */
-  /*                            ^                    ^                     */
-  /*                            |                    |                     */
-  /*                         maxBuff           sizeBuff = end of pool      */
-  /*                                                                       */
-  /*   This list is later used during the sweep phase in order to          */
-  /*   optimize performance (see technical note on the sweep below).       */
-  /*                                                                       */
-  /*   Of course, the raster detects whether the two stacks collide and    */
-  /*   handles the situation properly.                                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * A simple technical note on how the raster works
+   * -----------------------------------------------
+   *
+   *   Converting an outline into a bitmap is achieved in several steps:
+   *
+   *   1 - Decomposing the outline into successive `profiles'.  Each
+   *       profile is simply an array of scanline intersections on a given
+   *       dimension.  A profile's main attributes are
+   *
+   *       o its scanline position boundaries, i.e. `Ymin' and `Ymax'
+   *
+   *       o an array of intersection coordinates for each scanline
+   *         between `Ymin' and `Ymax'
+   *
+   *       o a direction, indicating whether it was built going `up' or
+   *         `down', as this is very important for filling rules
+   *
+   *       o its drop-out mode
+   *
+   *   2 - Sweeping the target map's scanlines in order to compute segment
+   *       `spans' which are then filled.  Additionally, this pass
+   *       performs drop-out control.
+   *
+   *   The outline data is parsed during step 1 only.  The profiles are
+   *   built from the bottom of the render pool, used as a stack.  The
+   *   following graphics shows the profile list under construction:
+   *
+   *    __________________________________________________________ _ _
+   *   |         |                 |         |                 |
+   *   | profile | coordinates for | profile | coordinates for |-->
+   *   |    1    |  profile 1      |    2    |  profile 2      |-->
+   *   |_________|_________________|_________|_________________|__ _ _
+   *
+   *   ^                                                       ^
+   *   |                                                       |
+   * start of render pool                                      top
+   *
+   *   The top of the profile stack is kept in the `top' variable.
+   *
+   *   As you can see, a profile record is pushed on top of the render
+   *   pool, which is then followed by its coordinates/intersections.  If
+   *   a change of direction is detected in the outline, a new profile is
+   *   generated until the end of the outline.
+   *
+   *   Note that when all profiles have been generated, the function
+   *   Finalize_Profile_Table() is used to record, for each profile, its
+   *   bottom-most scanline as well as the scanline above its upmost
+   *   boundary.  These positions are called `y-turns' because they (sort
+   *   of) correspond to local extrema.  They are stored in a sorted list
+   *   built from the top of the render pool as a downwards stack:
+   *
+   *     _ _ _______________________________________
+   *                           |                    |
+   *                        <--| sorted list of     |
+   *                        <--|  extrema scanlines |
+   *     _ _ __________________|____________________|
+   *
+   *                           ^                    ^
+   *                           |                    |
+   *                         maxBuff           sizeBuff = end of pool
+   *
+   *   This list is later used during the sweep phase in order to
+   *   optimize performance (see technical note on the sweep below).
+   *
+   *   Of course, the raster detects whether the two stacks collide and
+   *   handles the situation properly.
+   *
+   */
 
 
   /*************************************************************************/
@@ -163,14 +162,14 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_raster
+#define FT_COMPONENT  raster
 
 
 #ifdef STANDALONE_
@@ -452,9 +451,9 @@
 #define CEILING( x )  ( ( (x) + ras.precision - 1 ) & -ras.precision )
 #define TRUNC( x )    ( (Long)(x) >> ras.precision_bits )
 #define FRAC( x )     ( (x) & ( ras.precision - 1 ) )
-#define SCALED( x )   ( ( (x) < 0 ? -( -(x) << ras.scale_shift )   \
-                                  :  (  (x) << ras.scale_shift ) ) \
-                        - ras.precision_half )
+
+  /* scale and shift grid to pixel centers */
+#define SCALED( x )   ( (x) * ras.precision_scale - ras.precision_half )
 
 #define IS_BOTTOM_OVERSHOOT( x ) \
           (Bool)( CEILING( x ) - x >= ras.precision_half )
@@ -476,13 +475,10 @@
     Int         precision_bits;     /* precision related variables         */
     Int         precision;
     Int         precision_half;
-    Int         precision_shift;
+    Int         precision_scale;
     Int         precision_step;
     Int         precision_jitter;
 
-    Int         scale_shift;        /* == precision_shift   for bitmaps    */
-                                    /* == precision_shift+1 for pixmaps    */
-
     PLong       buff;               /* The profiles buffer                 */
     PLong       sizeBuff;           /* Render pool size                    */
     PLong       maxBuff;            /* Profiles buffer size                */
@@ -495,8 +491,7 @@
     TPoint*     arc;                /* current Bezier arc pointer          */
 
     UShort      bWidth;             /* target bitmap width                 */
-    PByte       bTarget;            /* target bitmap buffer                */
-    PByte       gTarget;            /* target pixmap buffer                */
+    PByte       bOrigin;            /* target bitmap bottom-left origin    */
 
     Long        lastX, lastY;
     Long        minY, maxY;
@@ -519,8 +514,6 @@
     FT_Outline  outline;
 
     Long        traceOfs;           /* current offset in target bitmap     */
-    Long        traceG;             /* current offset in target pixmap     */
-
     Short       traceIncr;          /* sweep's increment in target bitmap  */
 
     /* dispatch variables */
@@ -572,18 +565,19 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Set_High_Precision                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set precision variables according to param flag.                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    High :: Set to True for high precision (typically for ppem < 24),  */
-  /*            false otherwise.                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Set_High_Precision
+   *
+   * @Description:
+   *   Set precision variables according to param flag.
+   *
+   * @Input:
+   *   High ::
+   *     Set to True for high precision (typically for ppem < 24),
+   *     false otherwise.
+   */
   static void
   Set_High_Precision( RAS_ARGS Int  High )
   {
@@ -625,29 +619,31 @@
     FT_TRACE6(( "Set_High_Precision(%s)\n", High ? "true" : "false" ));
 
     ras.precision       = 1 << ras.precision_bits;
-    ras.precision_half  = ras.precision / 2;
-    ras.precision_shift = ras.precision_bits - Pixel_Bits;
+    ras.precision_half  = ras.precision >> 1;
+    ras.precision_scale = ras.precision >> Pixel_Bits;
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    New_Profile                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Create a new profile in the render pool.                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    aState    :: The state/orientation of the new profile.             */
-  /*                                                                       */
-  /*    overshoot :: Whether the profile's unrounded start position        */
-  /*                 differs by at least a half pixel.                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*   SUCCESS on success.  FAILURE in case of overflow or of incoherent   */
-  /*   profile.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   New_Profile
+   *
+   * @Description:
+   *   Create a new profile in the render pool.
+   *
+   * @Input:
+   *   aState ::
+   *     The state/orientation of the new profile.
+   *
+   *   overshoot ::
+   *     Whether the profile's unrounded start position
+   *     differs by at least a half pixel.
+   *
+   * @Return:
+   *  SUCCESS on success.  FAILURE in case of overflow or of incoherent
+   *  profile.
+   */
   static Bool
   New_Profile( RAS_ARGS TStates  aState,
                         Bool     overshoot )
@@ -706,21 +702,22 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    End_Profile                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalize the current profile.                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    overshoot :: Whether the profile's unrounded end position differs  */
-  /*                 by at least a half pixel.                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success.  FAILURE in case of overflow or incoherency.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   End_Profile
+   *
+   * @Description:
+   *   Finalize the current profile.
+   *
+   * @Input:
+   *   overshoot ::
+   *     Whether the profile's unrounded end position differs
+   *     by at least a half pixel.
+   *
+   * @Return:
+   *   SUCCESS on success.  FAILURE in case of overflow or incoherency.
+   */
   static Bool
   End_Profile( RAS_ARGS Bool  overshoot )
   {
@@ -778,21 +775,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Insert_Y_Turn                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Insert a salient into the sorted list placed on top of the render  */
-  /*    pool.                                                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    New y scanline position.                                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success.  FAILURE in case of overflow.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Insert_Y_Turn
+   *
+   * @Description:
+   *   Insert a salient into the sorted list placed on top of the render
+   *   pool.
+   *
+   * @Input:
+   *   New y scanline position.
+   *
+   * @Return:
+   *   SUCCESS on success.  FAILURE in case of overflow.
+   */
   static Bool
   Insert_Y_Turn( RAS_ARGS Int  y )
   {
@@ -834,17 +831,17 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Finalize_Profile_Table                                             */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Adjust all links in the profiles list.                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success.  FAILURE in case of overflow.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Finalize_Profile_Table
+   *
+   * @Description:
+   *   Adjust all links in the profiles list.
+   *
+   * @Return:
+   *   SUCCESS on success.  FAILURE in case of overflow.
+   */
   static Bool
   Finalize_Profile_Table( RAS_ARG )
   {
@@ -894,22 +891,22 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Split_Conic                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Subdivide one conic Bezier into two joint sub-arcs in the Bezier   */
-  /*    stack.                                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    None (subdivided Bezier is taken from the top of the stack).       */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This routine is the `beef' of this component.  It is  _the_ inner  */
-  /*    loop that should be optimized to hell to get the best performance. */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Split_Conic
+   *
+   * @Description:
+   *   Subdivide one conic Bezier into two joint sub-arcs in the Bezier
+   *   stack.
+   *
+   * @Input:
+   *   None (subdivided Bezier is taken from the top of the stack).
+   *
+   * @Note:
+   *   This routine is the `beef' of this component.  It is  _the_ inner
+   *   loop that should be optimized to hell to get the best performance.
+   */
   static void
   Split_Conic( TPoint*  base )
   {
@@ -933,20 +930,20 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Split_Cubic                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Subdivide a third-order Bezier arc into two joint sub-arcs in the  */
-  /*    Bezier stack.                                                      */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This routine is the `beef' of the component.  It is one of _the_   */
-  /*    inner loops that should be optimized like hell to get the best     */
-  /*    performance.                                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Split_Cubic
+   *
+   * @Description:
+   *   Subdivide a third-order Bezier arc into two joint sub-arcs in the
+   *   Bezier stack.
+   *
+   * @Note:
+   *   This routine is the `beef' of the component.  It is one of _the_
+   *   inner loops that should be optimized like hell to get the best
+   *   performance.
+   */
   static void
   Split_Cubic( TPoint*  base )
   {
@@ -975,31 +972,37 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Line_Up                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the x-coordinates of an ascending line segment and store   */
-  /*    them in the render pool.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    x1   :: The x-coordinate of the segment's start point.             */
-  /*                                                                       */
-  /*    y1   :: The y-coordinate of the segment's start point.             */
-  /*                                                                       */
-  /*    x2   :: The x-coordinate of the segment's end point.               */
-  /*                                                                       */
-  /*    y2   :: The y-coordinate of the segment's end point.               */
-  /*                                                                       */
-  /*    miny :: A lower vertical clipping bound value.                     */
-  /*                                                                       */
-  /*    maxy :: An upper vertical clipping bound value.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success, FAILURE on render pool overflow.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Line_Up
+   *
+   * @Description:
+   *   Compute the x-coordinates of an ascending line segment and store
+   *   them in the render pool.
+   *
+   * @Input:
+   *   x1 ::
+   *     The x-coordinate of the segment's start point.
+   *
+   *   y1 ::
+   *     The y-coordinate of the segment's start point.
+   *
+   *   x2 ::
+   *     The x-coordinate of the segment's end point.
+   *
+   *   y2 ::
+   *     The y-coordinate of the segment's end point.
+   *
+   *   miny ::
+   *     A lower vertical clipping bound value.
+   *
+   *   maxy ::
+   *     An upper vertical clipping bound value.
+   *
+   * @Return:
+   *   SUCCESS on success, FAILURE on render pool overflow.
+   */
   static Bool
   Line_Up( RAS_ARGS Long  x1,
                     Long  y1,
@@ -1114,31 +1117,37 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Line_Down                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the x-coordinates of an descending line segment and store  */
-  /*    them in the render pool.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    x1   :: The x-coordinate of the segment's start point.             */
-  /*                                                                       */
-  /*    y1   :: The y-coordinate of the segment's start point.             */
-  /*                                                                       */
-  /*    x2   :: The x-coordinate of the segment's end point.               */
-  /*                                                                       */
-  /*    y2   :: The y-coordinate of the segment's end point.               */
-  /*                                                                       */
-  /*    miny :: A lower vertical clipping bound value.                     */
-  /*                                                                       */
-  /*    maxy :: An upper vertical clipping bound value.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success, FAILURE on render pool overflow.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Line_Down
+   *
+   * @Description:
+   *   Compute the x-coordinates of an descending line segment and store
+   *   them in the render pool.
+   *
+   * @Input:
+   *   x1 ::
+   *     The x-coordinate of the segment's start point.
+   *
+   *   y1 ::
+   *     The y-coordinate of the segment's start point.
+   *
+   *   x2 ::
+   *     The x-coordinate of the segment's end point.
+   *
+   *   y2 ::
+   *     The y-coordinate of the segment's end point.
+   *
+   *   miny ::
+   *     A lower vertical clipping bound value.
+   *
+   *   maxy ::
+   *     An upper vertical clipping bound value.
+   *
+   * @Return:
+   *   SUCCESS on success, FAILURE on render pool overflow.
+   */
   static Bool
   Line_Down( RAS_ARGS Long  x1,
                       Long  y1,
@@ -1165,27 +1174,31 @@
   typedef void  (*TSplitter)( TPoint*  base );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Bezier_Up                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the x-coordinates of an ascending Bezier arc and store     */
-  /*    them in the render pool.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    degree   :: The degree of the Bezier arc (either 2 or 3).          */
-  /*                                                                       */
-  /*    splitter :: The function to split Bezier arcs.                     */
-  /*                                                                       */
-  /*    miny     :: A lower vertical clipping bound value.                 */
-  /*                                                                       */
-  /*    maxy     :: An upper vertical clipping bound value.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success, FAILURE on render pool overflow.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Bezier_Up
+   *
+   * @Description:
+   *   Compute the x-coordinates of an ascending Bezier arc and store
+   *   them in the render pool.
+   *
+   * @Input:
+   *   degree ::
+   *     The degree of the Bezier arc (either 2 or 3).
+   *
+   *   splitter ::
+   *     The function to split Bezier arcs.
+   *
+   *   miny ::
+   *     A lower vertical clipping bound value.
+   *
+   *   maxy ::
+   *     An upper vertical clipping bound value.
+   *
+   * @Return:
+   *   SUCCESS on success, FAILURE on render pool overflow.
+   */
   static Bool
   Bezier_Up( RAS_ARGS Int        degree,
                       TSplitter  splitter,
@@ -1298,27 +1311,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Bezier_Down                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Compute the x-coordinates of an descending Bezier arc and store    */
-  /*    them in the render pool.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    degree   :: The degree of the Bezier arc (either 2 or 3).          */
-  /*                                                                       */
-  /*    splitter :: The function to split Bezier arcs.                     */
-  /*                                                                       */
-  /*    miny     :: A lower vertical clipping bound value.                 */
-  /*                                                                       */
-  /*    maxy     :: An upper vertical clipping bound value.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success, FAILURE on render pool overflow.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Bezier_Down
+   *
+   * @Description:
+   *   Compute the x-coordinates of an descending Bezier arc and store
+   *   them in the render pool.
+   *
+   * @Input:
+   *   degree ::
+   *     The degree of the Bezier arc (either 2 or 3).
+   *
+   *   splitter ::
+   *     The function to split Bezier arcs.
+   *
+   *   miny ::
+   *     A lower vertical clipping bound value.
+   *
+   *   maxy ::
+   *     An upper vertical clipping bound value.
+   *
+   * @Return:
+   *   SUCCESS on success, FAILURE on render pool overflow.
+   */
   static Bool
   Bezier_Down( RAS_ARGS Int        degree,
                         TSplitter  splitter,
@@ -1347,25 +1364,27 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Line_To                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Inject a new line segment and adjust the Profiles list.            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*   x :: The x-coordinate of the segment's end point (its start point   */
-  /*        is stored in `lastX').                                         */
-  /*                                                                       */
-  /*   y :: The y-coordinate of the segment's end point (its start point   */
-  /*        is stored in `lastY').                                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*   SUCCESS on success, FAILURE on render pool overflow or incorrect    */
-  /*   profile.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Line_To
+   *
+   * @Description:
+   *   Inject a new line segment and adjust the Profiles list.
+   *
+   * @Input:
+   *  x ::
+   *    The x-coordinate of the segment's end point (its start point
+   *    is stored in `lastX').
+   *
+   *  y ::
+   *    The y-coordinate of the segment's end point (its start point
+   *    is stored in `lastY').
+   *
+   * @Return:
+   *  SUCCESS on success, FAILURE on render pool overflow or incorrect
+   *  profile.
+   */
   static Bool
   Line_To( RAS_ARGS Long  x,
                     Long  y )
@@ -1441,29 +1460,33 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Conic_To                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Inject a new conic arc and adjust the profile list.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*   cx :: The x-coordinate of the arc's new control point.              */
-  /*                                                                       */
-  /*   cy :: The y-coordinate of the arc's new control point.              */
-  /*                                                                       */
-  /*   x  :: The x-coordinate of the arc's end point (its start point is   */
-  /*         stored in `lastX').                                           */
-  /*                                                                       */
-  /*   y  :: The y-coordinate of the arc's end point (its start point is   */
-  /*         stored in `lastY').                                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*   SUCCESS on success, FAILURE on render pool overflow or incorrect    */
-  /*   profile.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Conic_To
+   *
+   * @Description:
+   *   Inject a new conic arc and adjust the profile list.
+   *
+   * @Input:
+   *  cx ::
+   *    The x-coordinate of the arc's new control point.
+   *
+   *  cy ::
+   *    The y-coordinate of the arc's new control point.
+   *
+   *  x ::
+   *    The x-coordinate of the arc's end point (its start point is
+   *    stored in `lastX').
+   *
+   *  y ::
+   *    The y-coordinate of the arc's end point (its start point is
+   *    stored in `lastY').
+   *
+   * @Return:
+   *  SUCCESS on success, FAILURE on render pool overflow or incorrect
+   *  profile.
+   */
   static Bool
   Conic_To( RAS_ARGS Long  cx,
                      Long  cy,
@@ -1558,33 +1581,39 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Cubic_To                                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Inject a new cubic arc and adjust the profile list.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*   cx1 :: The x-coordinate of the arc's first new control point.       */
-  /*                                                                       */
-  /*   cy1 :: The y-coordinate of the arc's first new control point.       */
-  /*                                                                       */
-  /*   cx2 :: The x-coordinate of the arc's second new control point.      */
-  /*                                                                       */
-  /*   cy2 :: The y-coordinate of the arc's second new control point.      */
-  /*                                                                       */
-  /*   x   :: The x-coordinate of the arc's end point (its start point is  */
-  /*          stored in `lastX').                                          */
-  /*                                                                       */
-  /*   y   :: The y-coordinate of the arc's end point (its start point is  */
-  /*          stored in `lastY').                                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*   SUCCESS on success, FAILURE on render pool overflow or incorrect    */
-  /*   profile.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Cubic_To
+   *
+   * @Description:
+   *   Inject a new cubic arc and adjust the profile list.
+   *
+   * @Input:
+   *  cx1 ::
+   *    The x-coordinate of the arc's first new control point.
+   *
+   *  cy1 ::
+   *    The y-coordinate of the arc's first new control point.
+   *
+   *  cx2 ::
+   *    The x-coordinate of the arc's second new control point.
+   *
+   *  cy2 ::
+   *    The y-coordinate of the arc's second new control point.
+   *
+   *  x ::
+   *    The x-coordinate of the arc's end point (its start point is
+   *    stored in `lastX').
+   *
+   *  y ::
+   *    The y-coordinate of the arc's end point (its start point is
+   *    stored in `lastY').
+   *
+   * @Return:
+   *  SUCCESS on success, FAILURE on render pool overflow or incorrect
+   *  profile.
+   */
   static Bool
   Cubic_To( RAS_ARGS Long  cx1,
                      Long  cy1,
@@ -1705,27 +1734,30 @@
                        } while ( 0 )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Decompose_Curve                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Scan the outline arrays in order to emit individual segments and   */
-  /*    Beziers by calling Line_To() and Bezier_To().  It handles all      */
-  /*    weird cases, like when the first point is off the curve, or when   */
-  /*    there are simply no `on' points in the contour!                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    first   :: The index of the first point in the contour.            */
-  /*                                                                       */
-  /*    last    :: The index of the last point in the contour.             */
-  /*                                                                       */
-  /*    flipped :: If set, flip the direction of the curve.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success, FAILURE on error.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Decompose_Curve
+   *
+   * @Description:
+   *   Scan the outline arrays in order to emit individual segments and
+   *   Beziers by calling Line_To() and Bezier_To().  It handles all
+   *   weird cases, like when the first point is off the curve, or when
+   *   there are simply no `on' points in the contour!
+   *
+   * @Input:
+   *   first ::
+   *     The index of the first point in the contour.
+   *
+   *   last ::
+   *     The index of the last point in the contour.
+   *
+   *   flipped ::
+   *     If set, flip the direction of the curve.
+   *
+   * @Return:
+   *   SUCCESS on success, FAILURE on error.
+   */
   static Bool
   Decompose_Curve( RAS_ARGS UShort  first,
                             UShort  last,
@@ -1934,22 +1966,23 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Convert_Glyph                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Convert a glyph into a series of segments and arcs and make a      */
-  /*    profiles list with them.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    flipped :: If set, flip the direction of curve.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS on success, FAILURE if any error was encountered during    */
-  /*    rendering.                                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Convert_Glyph
+   *
+   * @Description:
+   *   Convert a glyph into a series of segments and arcs and make a
+   *   profiles list with them.
+   *
+   * @Input:
+   *   flipped ::
+   *     If set, flip the direction of curve.
+   *
+   * @Return:
+   *   SUCCESS on success, FAILURE if any error was encountered during
+   *   rendering.
+   */
   static Bool
   Convert_Glyph( RAS_ARGS Int  flipped )
   {
@@ -2028,12 +2061,12 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  Init_Linked                                                          */
-  /*                                                                       */
-  /*    Initializes an empty linked list.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Init_Linked
+   *
+   *   Initializes an empty linked list.
+   */
   static void
   Init_Linked( TProfileList*  l )
   {
@@ -2041,12 +2074,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  InsNew                                                               */
-  /*                                                                       */
-  /*    Inserts a new profile in a linked list.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * InsNew
+   *
+   *   Inserts a new profile in a linked list.
+   */
   static void
   InsNew( PProfileList  list,
           PProfile      profile )
@@ -2072,12 +2105,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  DelOld                                                               */
-  /*                                                                       */
-  /*    Removes an old profile from a linked list.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DelOld
+   *
+   *   Removes an old profile from a linked list.
+   */
   static void
   DelOld( PProfileList  list,
           PProfile      profile )
@@ -2105,14 +2138,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  Sort                                                                 */
-  /*                                                                       */
-  /*    Sorts a trace list.  In 95%, the list is already sorted.  We need  */
-  /*    an algorithm which is fast in this case.  Bubble sort is enough    */
-  /*    and simple.                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Sort
+   *
+   *   Sorts a trace list.  In 95%, the list is already sorted.  We need
+   *   an algorithm which is fast in this case.  Bubble sort is enough
+   *   and simple.
+   */
   static void
   Sort( PProfileList  list )
   {
@@ -2163,14 +2196,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  Vertical Sweep Procedure Set                                         */
-  /*                                                                       */
-  /*  These four routines are used during the vertical black/white sweep   */
-  /*  phase by the generic Draw_Sweep() function.                          */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Vertical Sweep Procedure Set
+   *
+   * These four routines are used during the vertical black/white sweep
+   * phase by the generic Draw_Sweep() function.
+   *
+   */
 
   static void
   Vertical_Sweep_Init( RAS_ARGS Short*  min,
@@ -2183,8 +2216,6 @@
 
     ras.traceIncr = (Short)-pitch;
     ras.traceOfs  = -*min * pitch;
-    if ( pitch > 0 )
-      ras.traceOfs += (Long)( ras.target.rows - 1 ) * pitch;
   }
 
 
@@ -2215,13 +2246,18 @@
 
     /* Drop-out control */
 
-    e1 = TRUNC( CEILING( x1 ) );
+    e1 = CEILING( x1 );
+    e2 = FLOOR( x2 );
 
+    /* take care of the special case where both the left */
+    /* and right contour lie exactly on pixel centers    */
     if ( dropOutControl != 2                             &&
-         x2 - x1 - ras.precision <= ras.precision_jitter )
+         x2 - x1 - ras.precision <= ras.precision_jitter &&
+         e1 != x1 && e2 != x2                            )
       e2 = e1;
-    else
-      e2 = TRUNC( FLOOR( x2 ) );
+
+    e1 = TRUNC( e1 );
+    e2 = TRUNC( e2 );
 
     if ( e2 >= 0 && e1 < ras.bWidth )
     {
@@ -2242,7 +2278,7 @@
       f1 = (Byte)  ( 0xFF >> ( e1 & 7 ) );
       f2 = (Byte) ~( 0x7F >> ( e2 & 7 ) );
 
-      target = ras.bTarget + ras.traceOfs + c1;
+      target = ras.bOrigin + ras.traceOfs + c1;
       c2 -= c1;
 
       if ( c2 > 0 )
@@ -2252,12 +2288,9 @@
         /* memset() is slower than the following code on many platforms. */
         /* This is due to the fact that, in the vast majority of cases,  */
         /* the span length in bytes is relatively small.                 */
-        c2--;
-        while ( c2 > 0 )
-        {
+        while ( --c2 > 0 )
           *(++target) = 0xFF;
-          c2--;
-        }
+
         target[1] |= f2;
       }
       else
@@ -2400,7 +2433,7 @@
         f1 = (Short)( e1 &  7 );
 
         if ( e1 >= 0 && e1 < ras.bWidth                      &&
-             ras.bTarget[ras.traceOfs + c1] & ( 0x80 >> f1 ) )
+             ras.bOrigin[ras.traceOfs + c1] & ( 0x80 >> f1 ) )
           goto Exit;
       }
       else
@@ -2416,7 +2449,7 @@
       c1 = (Short)( e1 >> 3 );
       f1 = (Short)( e1 & 7 );
 
-      ras.bTarget[ras.traceOfs + c1] |= (char)( 0x80 >> f1 );
+      ras.bOrigin[ras.traceOfs + c1] |= (char)( 0x80 >> f1 );
     }
 
   Exit:
@@ -2431,14 +2464,14 @@
   }
 
 
-  /***********************************************************************/
-  /*                                                                     */
-  /*  Horizontal Sweep Procedure Set                                     */
-  /*                                                                     */
-  /*  These four routines are used during the horizontal black/white     */
-  /*  sweep phase by the generic Draw_Sweep() function.                  */
-  /*                                                                     */
-  /***********************************************************************/
+  /************************************************************************
+   *
+   * Horizontal Sweep Procedure Set
+   *
+   * These four routines are used during the horizontal black/white
+   * sweep phase by the generic Draw_Sweep() function.
+   *
+   */
 
   static void
   Horizontal_Sweep_Init( RAS_ARGS Short*  min,
@@ -2483,19 +2516,14 @@
         {
           Byte   f1;
           PByte  bits;
-          PByte  p;
 
 
           FT_TRACE7(( " -> y=%d (drop-out)", e1 ));
 
-          bits = ras.bTarget + ( y >> 3 );
+          bits = ras.bOrigin + ( y >> 3 ) - e1 * ras.target.pitch;
           f1   = (Byte)( 0x80 >> ( y & 7 ) );
-          p    = bits - e1 * ras.target.pitch;
 
-          if ( ras.target.pitch > 0 )
-            p += (Long)( ras.target.rows - 1 ) * ras.target.pitch;
-
-          p[0] |= f1;
+          bits[0] |= f1;
         }
       }
 
@@ -2597,13 +2625,9 @@
 
         e1 = TRUNC( e1 );
 
-        bits = ras.bTarget + ( y >> 3 );
+        bits = ras.bOrigin + ( y >> 3 ) - e1 * ras.target.pitch;
         f1   = (Byte)( 0x80 >> ( y & 7 ) );
 
-        bits -= e1 * ras.target.pitch;
-        if ( ras.target.pitch > 0 )
-          bits += (Long)( ras.target.rows - 1 ) * ras.target.pitch;
-
         if ( e1 >= 0                     &&
              (ULong)e1 < ras.target.rows &&
              *bits & f1                  )
@@ -2619,12 +2643,8 @@
     {
       FT_TRACE7(( " -> y=%d (drop-out)", e1 ));
 
-      bits  = ras.bTarget + ( y >> 3 );
+      bits  = ras.bOrigin + ( y >> 3 ) - e1 * ras.target.pitch;
       f1    = (Byte)( 0x80 >> ( y & 7 ) );
-      bits -= e1 * ras.target.pitch;
-
-      if ( ras.target.pitch > 0 )
-        bits += (Long)( ras.target.rows - 1 ) * ras.target.pitch;
 
       bits[0] |= f1;
     }
@@ -2642,11 +2662,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  Generic Sweep Drawing routine                                        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Generic Sweep Drawing routine
+   *
+   */
 
   static Bool
   Draw_Sweep( RAS_ARG )
@@ -2888,20 +2908,109 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Render_Single_Pass                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Perform one sweep with sub-banding.                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    flipped :: If set, flip the direction of the outline.              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Renderer error code.                                               */
-  /*                                                                       */
+#ifdef STANDALONE_
+
+  /**************************************************************************
+   *
+   * The following functions should only compile in stand-alone mode,
+   * i.e., when building this component without the rest of FreeType.
+   *
+   */
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   FT_Outline_Get_CBox
+   *
+   * @Description:
+   *   Return an outline's `control box'.  The control box encloses all
+   *   the outline's points, including Bézier control points.  Though it
+   *   coincides with the exact bounding box for most glyphs, it can be
+   *   slightly larger in some situations (like when rotating an outline
+   *   that contains Bézier outside arcs).
+   *
+   *   Computing the control box is very fast, while getting the bounding
+   *   box can take much more time as it needs to walk over all segments
+   *   and arcs in the outline.  To get the latter, you can use the
+   *   `ftbbox' component, which is dedicated to this single task.
+   *
+   * @Input:
+   *   outline ::
+   *     A pointer to the source outline descriptor.
+   *
+   * @Output:
+   *   acbox ::
+   *     The outline's control box.
+   *
+   * @Note:
+   *   See @FT_Glyph_Get_CBox for a discussion of tricky fonts.
+   */
+
+  static void
+  FT_Outline_Get_CBox( const FT_Outline*  outline,
+                       FT_BBox           *acbox )
+  {
+    Long  xMin, yMin, xMax, yMax;
+
+
+    if ( outline && acbox )
+    {
+      if ( outline->n_points == 0 )
+      {
+        xMin = 0;
+        yMin = 0;
+        xMax = 0;
+        yMax = 0;
+      }
+      else
+      {
+        FT_Vector*  vec   = outline->points;
+        FT_Vector*  limit = vec + outline->n_points;
+
+
+        xMin = xMax = vec->x;
+        yMin = yMax = vec->y;
+        vec++;
+
+        for ( ; vec < limit; vec++ )
+        {
+          Long  x, y;
+
+
+          x = vec->x;
+          if ( x < xMin ) xMin = x;
+          if ( x > xMax ) xMax = x;
+
+          y = vec->y;
+          if ( y < yMin ) yMin = y;
+          if ( y > yMax ) yMax = y;
+        }
+      }
+      acbox->xMin = xMin;
+      acbox->xMax = xMax;
+      acbox->yMin = yMin;
+      acbox->yMax = yMax;
+    }
+  }
+
+#endif /* STANDALONE_ */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   Render_Single_Pass
+   *
+   * @Description:
+   *   Perform one sweep with sub-banding.
+   *
+   * @Input:
+   *   flipped ::
+   *     If set, flip the direction of the outline.
+   *
+   * @Return:
+   *   Renderer error code.
+   */
   static int
   Render_Single_Pass( RAS_ARGS Bool  flipped )
   {
@@ -2963,17 +3072,17 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Render_Glyph                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Render a glyph in a bitmap.  Sub-banding if needed.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Render_Glyph
+   *
+   * @Description:
+   *   Render a glyph in a bitmap.  Sub-banding if needed.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   Render_Glyph( RAS_ARG )
   {
@@ -2982,7 +3091,6 @@
 
     Set_High_Precision( RAS_VARS ras.outline.flags &
                                  FT_OUTLINE_HIGH_PRECISION );
-    ras.scale_shift = ras.precision_shift;
 
     if ( ras.outline.flags & FT_OUTLINE_IGNORE_DROPOUTS )
       ras.dropOutControl = 2;
@@ -3013,7 +3121,10 @@
     ras.band_stack[0].y_max = (Short)( ras.target.rows - 1 );
 
     ras.bWidth  = (UShort)ras.target.width;
-    ras.bTarget = (Byte*)ras.target.buffer;
+    ras.bOrigin = (Byte*)ras.target.buffer;
+
+    if ( ras.target.pitch > 0 )
+      ras.bOrigin += (Long)( ras.target.rows - 1 ) * ras.target.pitch;
 
     if ( ( error = Render_Single_Pass( RAS_VARS 0 ) ) != 0 )
       return error;
@@ -3185,20 +3296,6 @@
     if ( !target_map->buffer )
       return FT_THROW( Invalid );
 
-    /* reject too large outline coordinates */
-    {
-      FT_Vector*  vec   = outline->points;
-      FT_Vector*  limit = vec + outline->n_points;
-
-
-      for ( ; vec < limit; vec++ )
-      {
-        if ( vec->x < -0x1000000L || vec->x > 0x1000000L ||
-             vec->y < -0x1000000L || vec->y > 0x1000000L )
-         return FT_THROW( Invalid );
-      }
-    }
-
     ras.outline = *outline;
     ras.target  = *target_map;
 
diff --git a/thirdparty/freetype/src/raster/ftraster.h b/thirdparty/freetype/src/raster/ftraster.h
index 40b5d6d321..50d34201a1 100644
--- a/thirdparty/freetype/src/raster/ftraster.h
+++ b/thirdparty/freetype/src/raster/ftraster.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftraster.h                                                             */
-/*                                                                         */
-/*    The FreeType glyph rasterizer (specification).                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used        */
-/*  modified and distributed under the terms of the FreeType project       */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftraster.h
+ *
+ *   The FreeType glyph rasterizer (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used
+ * modified and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTRASTER_H_
@@ -28,11 +28,11 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Uncomment the following line if you are using ftraster.c as a         */
-  /* standalone module, fully independent of FreeType.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Uncomment the following line if you are using ftraster.c as a
+   * standalone module, fully independent of FreeType.
+   */
 /* #define STANDALONE_ */
 
   FT_EXPORT_VAR( const FT_Raster_Funcs )  ft_standard_raster;
diff --git a/thirdparty/freetype/src/raster/ftrend1.c b/thirdparty/freetype/src/raster/ftrend1.c
index a7ce9731d7..62c727182a 100644
--- a/thirdparty/freetype/src/raster/ftrend1.c
+++ b/thirdparty/freetype/src/raster/ftrend1.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftrend1.c                                                              */
-/*                                                                         */
-/*    The FreeType glyph rasterizer interface (body).                      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftrend1.c
+ *
+ *   The FreeType glyph rasterizer interface (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -22,7 +22,6 @@
 #include FT_OUTLINE_H
 #include "ftrend1.h"
 #include "ftraster.h"
-#include "rastpic.h"
 
 #include "rasterrs.h"
 
@@ -128,7 +127,11 @@
       slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
     }
 
-    ft_glyphslot_preset_bitmap( slot, mode, origin );
+    if ( ft_glyphslot_preset_bitmap( slot, mode, origin ) )
+    {
+      error = FT_THROW( Raster_Overflow );
+      goto Exit;
+    }
 
     /* allocate new one */
     if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, bitmap->pitch ) )
@@ -197,7 +200,7 @@
     (FT_Renderer_GetCBoxFunc)  ft_raster1_get_cbox,   /* get_glyph_cbox  */
     (FT_Renderer_SetModeFunc)  ft_raster1_set_mode,   /* set_mode        */
 
-    (FT_Raster_Funcs*)&FT_STANDARD_RASTER_GET         /* raster_class    */
+    (FT_Raster_Funcs*)&ft_standard_raster             /* raster_class    */
   )
 
 
diff --git a/thirdparty/freetype/src/raster/ftrend1.h b/thirdparty/freetype/src/raster/ftrend1.h
index 2abdf2d703..82ecac686c 100644
--- a/thirdparty/freetype/src/raster/ftrend1.h
+++ b/thirdparty/freetype/src/raster/ftrend1.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftrend1.h                                                              */
-/*                                                                         */
-/*    The FreeType glyph rasterizer interface (specification).             */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftrend1.h
+ *
+ *   The FreeType glyph rasterizer interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTREND1_H_
diff --git a/thirdparty/freetype/src/raster/module.mk b/thirdparty/freetype/src/raster/module.mk
index b115f416b2..0a6d4b09d9 100644
--- a/thirdparty/freetype/src/raster/module.mk
+++ b/thirdparty/freetype/src/raster/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/raster/raster.c b/thirdparty/freetype/src/raster/raster.c
index 76edd21e1e..e3ac9e566a 100644
--- a/thirdparty/freetype/src/raster/raster.c
+++ b/thirdparty/freetype/src/raster/raster.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  raster.c                                                               */
-/*                                                                         */
-/*    FreeType monochrome rasterer module component (body only).           */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * raster.c
+ *
+ *   FreeType monochrome rasterer module component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -21,7 +21,6 @@
 
 #include "ftraster.c"
 #include "ftrend1.c"
-#include "rastpic.c"
 
 
 /* END */
diff --git a/thirdparty/freetype/src/raster/rasterrs.h b/thirdparty/freetype/src/raster/rasterrs.h
index 22a3e15340..7266407365 100644
--- a/thirdparty/freetype/src/raster/rasterrs.h
+++ b/thirdparty/freetype/src/raster/rasterrs.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  rasterrs.h                                                             */
-/*                                                                         */
-/*    monochrome renderer error codes (specification only).                */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the monochrome renderer error enumeration */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * rasterrs.h
+ *
+ *   monochrome renderer error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the monochrome renderer error enumeration
+   * constants.
+   *
+   */
 
 #ifndef RASTERRS_H_
 #define RASTERRS_H_
diff --git a/thirdparty/freetype/src/raster/rastpic.c b/thirdparty/freetype/src/raster/rastpic.c
deleted file mode 100644
index 1dc8981b8a..0000000000
--- a/thirdparty/freetype/src/raster/rastpic.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  rastpic.c                                                              */
-/*                                                                         */
-/*    The FreeType position independent code services for raster module.   */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "rastpic.h"
-#include "rasterrs.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from ftraster.c */
-  void
-  FT_Init_Class_ft_standard_raster( FT_Raster_Funcs*  funcs );
-
-
-  void
-  ft_raster1_renderer_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->raster )
-    {
-      RasterPIC*  container = (RasterPIC*)pic_container->raster;
-
-
-      if ( --container->ref_count )
-        return;
-      FT_FREE( container );
-      pic_container->raster = NULL;
-    }
-  }
-
-
-  FT_Error
-  ft_raster1_renderer_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    RasterPIC*         container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* XXX: since this function also served the no longer available  */
-    /*      raster5 renderer it uses reference counting, which could */
-    /*      be removed now                                           */
-    if ( pic_container->raster )
-    {
-      ((RasterPIC*)pic_container->raster)->ref_count++;
-      return error;
-    }
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->raster = container;
-
-    container->ref_count = 1;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    FT_Init_Class_ft_standard_raster( &container->ft_standard_raster );
-
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/raster/rastpic.h b/thirdparty/freetype/src/raster/rastpic.h
deleted file mode 100644
index 6d0877c423..0000000000
--- a/thirdparty/freetype/src/raster/rastpic.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  rastpic.h                                                              */
-/*                                                                         */
-/*    The FreeType position independent code services for raster module.   */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef RASTPIC_H_
-#define RASTPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-FT_BEGIN_HEADER
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define FT_STANDARD_RASTER_GET  ft_standard_raster
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-  typedef struct  RasterPIC_
-  {
-    int              ref_count;
-    FT_Raster_Funcs  ft_standard_raster;
-
-  } RasterPIC;
-
-
-#define GET_PIC( lib )                                    \
-          ( (RasterPIC*)( (lib)->pic_container.raster ) )
-#define FT_STANDARD_RASTER_GET  ( GET_PIC( library )->ft_standard_raster )
-
-
-  /* see rastpic.c for the implementation */
-  void
-  ft_raster1_renderer_class_pic_free( FT_Library  library );
-
-  FT_Error
-  ft_raster1_renderer_class_pic_init( FT_Library  library );
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-FT_END_HEADER
-
-#endif /* RASTPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/raster/rules.mk b/thirdparty/freetype/src/raster/rules.mk
index 9aef1f0bab..7664671e80 100644
--- a/thirdparty/freetype/src/raster/rules.mk
+++ b/thirdparty/freetype/src/raster/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -28,8 +28,7 @@ RASTER_COMPILE := $(CC) $(ANSIFLAGS)                               \
 # raster driver sources (i.e., C files)
 #
 RASTER_DRV_SRC := $(RASTER_DIR)/ftraster.c \
-                  $(RASTER_DIR)/ftrend1.c  \
-                  $(RASTER_DIR)/rastpic.c
+                  $(RASTER_DIR)/ftrend1.c
 
 
 # raster driver headers
diff --git a/thirdparty/freetype/src/sfnt/module.mk b/thirdparty/freetype/src/sfnt/module.mk
index 51ca67e784..8c3b44fec7 100644
--- a/thirdparty/freetype/src/sfnt/module.mk
+++ b/thirdparty/freetype/src/sfnt/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/sfnt/pngshim.c b/thirdparty/freetype/src/sfnt/pngshim.c
index 16020266af..ca85d9751f 100644
--- a/thirdparty/freetype/src/sfnt/pngshim.c
+++ b/thirdparty/freetype/src/sfnt/pngshim.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pngshim.c                                                              */
-/*                                                                         */
-/*    PNG Bitmap glyph support.                                            */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  Google, Inc.                                                           */
-/*  Written by Stuart Gill and Behdad Esfahbod.                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pngshim.c
+ *
+ *   PNG Bitmap glyph support.
+ *
+ * Copyright (C) 2013-2019 by
+ * Google, Inc.
+ * Written by Stuart Gill and Behdad Esfahbod.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
diff --git a/thirdparty/freetype/src/sfnt/pngshim.h b/thirdparty/freetype/src/sfnt/pngshim.h
index 194238c3a2..06c6f6b20e 100644
--- a/thirdparty/freetype/src/sfnt/pngshim.h
+++ b/thirdparty/freetype/src/sfnt/pngshim.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  pngshim.h                                                              */
-/*                                                                         */
-/*    PNG Bitmap glyph support.                                            */
-/*                                                                         */
-/*  Copyright 2013-2018 by                                                 */
-/*  Google, Inc.                                                           */
-/*  Written by Stuart Gill and Behdad Esfahbod.                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * pngshim.h
+ *
+ *   PNG Bitmap glyph support.
+ *
+ * Copyright (C) 2013-2019 by
+ * Google, Inc.
+ * Written by Stuart Gill and Behdad Esfahbod.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef PNGSHIM_H_
diff --git a/thirdparty/freetype/src/sfnt/rules.mk b/thirdparty/freetype/src/sfnt/rules.mk
index 83acc66a8f..ff9e7c6117 100644
--- a/thirdparty/freetype/src/sfnt/rules.mk
+++ b/thirdparty/freetype/src/sfnt/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -28,17 +28,18 @@ SFNT_COMPILE := $(CC) $(ANSIFLAGS)                             \
 
 # SFNT driver sources (i.e., C files)
 #
-SFNT_DRV_SRC := $(SFNT_DIR)/ttload.c   \
-                $(SFNT_DIR)/ttmtx.c    \
+SFNT_DRV_SRC := $(SFNT_DIR)/pngshim.c  \
+                $(SFNT_DIR)/sfdriver.c \
+                $(SFNT_DIR)/sfobjs.c   \
+                $(SFNT_DIR)/ttbdf.c    \
                 $(SFNT_DIR)/ttcmap.c   \
-                $(SFNT_DIR)/ttsbit.c   \
-                $(SFNT_DIR)/ttpost.c   \
+                $(SFNT_DIR)/ttcolr.c   \
+                $(SFNT_DIR)/ttcpal.c   \
                 $(SFNT_DIR)/ttkern.c   \
-                $(SFNT_DIR)/ttbdf.c    \
-                $(SFNT_DIR)/sfobjs.c   \
-                $(SFNT_DIR)/sfdriver.c \
-                $(SFNT_DIR)/sfntpic.c  \
-                $(SFNT_DIR)/pngshim.c
+                $(SFNT_DIR)/ttload.c   \
+                $(SFNT_DIR)/ttmtx.c    \
+                $(SFNT_DIR)/ttpost.c   \
+                $(SFNT_DIR)/ttsbit.c
 
 # SFNT driver headers
 #
diff --git a/thirdparty/freetype/src/sfnt/sfdriver.c b/thirdparty/freetype/src/sfnt/sfdriver.c
index 303e1ca9f1..c467ff4d37 100644
--- a/thirdparty/freetype/src/sfnt/sfdriver.c
+++ b/thirdparty/freetype/src/sfnt/sfdriver.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfdriver.c                                                             */
-/*                                                                         */
-/*    High-level SFNT driver interface (body).                             */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * sfdriver.c
+ *
+ *   High-level SFNT driver interface (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -25,7 +25,6 @@
 #include "sfdriver.h"
 #include "ttload.h"
 #include "sfobjs.h"
-#include "sfntpic.h"
 
 #include "sferrors.h"
 
@@ -33,6 +32,11 @@
 #include "ttsbit.h"
 #endif
 
+#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
+#include "ttcolr.h"
+#include "ttcpal.h"
+#endif
+
 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
 #include "ttpost.h"
 #endif
@@ -57,18 +61,18 @@
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_sfdriver
+#define FT_COMPONENT  sfdriver
 
 
   /*
-   *  SFNT TABLE SERVICE
+   * SFNT TABLE SERVICE
    *
    */
 
@@ -155,7 +159,7 @@
 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
 
   /*
-   *  GLYPH DICT SERVICE
+   * GLYPH DICT SERVICE
    *
    */
 
@@ -222,7 +226,7 @@
 
 
   /*
-   *  POSTSCRIPT NAME SERVICE
+   * POSTSCRIPT NAME SERVICE
    *
    */
 
@@ -460,14 +464,12 @@
   typedef int (*char_type_func)( int  c );
 
 
-  /* handling of PID/EID 3/0 and 3/1 is the same */
+  /* Handling of PID/EID 3/0 and 3/1 is the same. */
 #define IS_WIN( n )  ( (n)->platformID == 3                             && \
-                       ( (n)->encodingID == 1 || (n)->encodingID == 0 ) && \
-                       (n)->languageID == 0x409                         )
+                       ( (n)->encodingID == 1 || (n)->encodingID == 0 ) )
 
 #define IS_APPLE( n )  ( (n)->platformID == 1 && \
-                         (n)->encodingID == 0 && \
-                         (n)->languageID == 0 )
+                         (n)->encodingID == 0 )
 
   static char*
   get_win_string( FT_Memory       memory,
@@ -491,42 +493,40 @@
 
     if ( FT_STREAM_SEEK( entry->stringOffset ) ||
          FT_FRAME_ENTER( entry->stringLength ) )
-    {
-      FT_FREE( result );
-      entry->stringLength = 0;
-      entry->stringOffset = 0;
-      FT_FREE( entry->string );
-
-      return NULL;
-    }
+      goto get_win_string_error;
 
     r = (FT_String*)result;
     p = (FT_Char*)stream->cursor;
 
     for ( len = entry->stringLength / 2; len > 0; len--, p += 2 )
     {
-      if ( p[0] == 0 )
+      if ( p[0] == 0 && char_type( p[1] ) )
+        *r++ = p[1];
+      else
       {
-        if ( char_type( p[1] ) )
-          *r++ = p[1];
-        else
-        {
-          if ( report_invalid_characters )
-          {
-            FT_TRACE0(( "get_win_string:"
-                        " Character `%c' (0x%X) invalid in PS name string\n",
-                        p[1], p[1] ));
-            /* it's not the job of FreeType to correct PS names... */
-            *r++ = p[1];
-          }
-        }
+        if ( report_invalid_characters )
+          FT_TRACE0(( "get_win_string:"
+                      " Character 0x%X invalid in PS name string\n",
+                      ((unsigned)p[0])*256 + (unsigned)p[1] ));
+        break;
       }
     }
-    *r = '\0';
+    if ( !len )
+      *r = '\0';
 
     FT_FRAME_EXIT();
 
-    return result;
+    if ( !len )
+      return result;
+
+  get_win_string_error:
+    FT_FREE( result );
+
+    entry->stringLength = 0;
+    entry->stringOffset = 0;
+    FT_FREE( entry->string );
+
+    return NULL;
   }
 
 
@@ -552,14 +552,7 @@
 
     if ( FT_STREAM_SEEK( entry->stringOffset ) ||
          FT_FRAME_ENTER( entry->stringLength ) )
-    {
-      FT_FREE( result );
-      entry->stringOffset = 0;
-      entry->stringLength = 0;
-      FT_FREE( entry->string );
-
-      return NULL;
-    }
+      goto get_apple_string_error;
 
     r = (FT_String*)result;
     p = (FT_Char*)stream->cursor;
@@ -571,20 +564,28 @@
       else
       {
         if ( report_invalid_characters )
-        {
           FT_TRACE0(( "get_apple_string:"
                       " Character `%c' (0x%X) invalid in PS name string\n",
                       *p, *p ));
-          /* it's not the job of FreeType to correct PS names... */
-          *r++ = *p;
-        }
+        break;
       }
     }
-    *r = '\0';
+    if ( !len )
+      *r = '\0';
 
     FT_FRAME_EXIT();
 
-    return result;
+    if ( !len )
+      return result;
+
+  get_apple_string_error:
+    FT_FREE( result );
+
+    entry->stringOffset = 0;
+    entry->stringLength = 0;
+    FT_FREE( entry->string );
+
+    return NULL;
   }
 
 
@@ -607,10 +608,10 @@
 
       if ( name->nameID == id && name->stringLength > 0 )
       {
-        if ( IS_WIN( name ) )
+        if ( IS_WIN( name ) && ( name->languageID == 0x409 || *win == -1 ) )
           *win = n;
 
-        if ( IS_APPLE( name ) )
+        if ( IS_APPLE( name ) && ( name->languageID == 0 || *apple == -1 ) )
           *apple = n;
       }
     }
@@ -643,9 +644,9 @@
 
 
   /*
-   *  Find the shortest decimal representation of a 16.16 fixed point
-   *  number.  The function fills `buf' with the result, returning a pointer
-   *  to the position after the representation's last byte.
+   * Find the shortest decimal representation of a 16.16 fixed point
+   * number.  The function fills `buf' with the result, returning a pointer
+   * to the position after the representation's last byte.
    */
 
   static char*
@@ -673,7 +674,7 @@
     if ( fixed < 0 )
     {
       *p++ = '-';
-      fixed = -fixed;
+      fixed = NEG_INT( fixed );
     }
 
     int_part  = ( fixed >> 16 ) & 0xFFFF;
@@ -828,13 +829,20 @@
                                  face->name_table.names + win,
                                  sfnt_is_alphanumeric,
                                  0 );
-      else
+      if ( !result && apple != -1 )
         result = get_apple_string( face->root.memory,
                                    face->name_table.stream,
                                    face->name_table.names + apple,
                                    sfnt_is_alphanumeric,
                                    0 );
 
+      if ( !result )
+      {
+        FT_TRACE0(( "sfnt_get_var_ps_name:"
+                    " No valid PS name prefix for font instances found\n" ));
+        return NULL;
+      }
+
       len = ft_strlen( result );
 
       /* sanitize if necessary; we reserve space for 36 bytes (a 128bit  */
@@ -1052,7 +1060,7 @@
                                face->name_table.names + win,
                                sfnt_is_postscript,
                                1 );
-    else
+    if ( !result && apple != -1 )
       result = get_apple_string( face->root.memory,
                                  face->name_table.stream,
                                  face->name_table.names + apple,
@@ -1073,7 +1081,7 @@
 
 
   /*
-   *  TT CMAP INFO
+   * TT CMAP INFO
    */
   FT_DEFINE_SERVICE_TTCMAPSREC(
     tt_service_get_cmap_info,
@@ -1132,41 +1140,41 @@
 
 
   /*
-   *  SERVICE LIST
+   * SERVICE LIST
    */
 
 #if defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES && defined TT_CONFIG_OPTION_BDF
   FT_DEFINE_SERVICEDESCREC5(
     sfnt_services,
 
-    FT_SERVICE_ID_SFNT_TABLE,           &SFNT_SERVICE_SFNT_TABLE_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_GLYPH_DICT,           &SFNT_SERVICE_GLYPH_DICT_GET,
-    FT_SERVICE_ID_BDF,                  &SFNT_SERVICE_BDF_GET,
-    FT_SERVICE_ID_TT_CMAP,              &TT_SERVICE_CMAP_INFO_GET )
+    FT_SERVICE_ID_SFNT_TABLE,           &sfnt_service_sfnt_table,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
+    FT_SERVICE_ID_GLYPH_DICT,           &sfnt_service_glyph_dict,
+    FT_SERVICE_ID_BDF,                  &sfnt_service_bdf,
+    FT_SERVICE_ID_TT_CMAP,              &tt_service_get_cmap_info )
 #elif defined TT_CONFIG_OPTION_POSTSCRIPT_NAMES
   FT_DEFINE_SERVICEDESCREC4(
     sfnt_services,
 
-    FT_SERVICE_ID_SFNT_TABLE,           &SFNT_SERVICE_SFNT_TABLE_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_GLYPH_DICT,           &SFNT_SERVICE_GLYPH_DICT_GET,
-    FT_SERVICE_ID_TT_CMAP,              &TT_SERVICE_CMAP_INFO_GET )
+    FT_SERVICE_ID_SFNT_TABLE,           &sfnt_service_sfnt_table,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
+    FT_SERVICE_ID_GLYPH_DICT,           &sfnt_service_glyph_dict,
+    FT_SERVICE_ID_TT_CMAP,              &tt_service_get_cmap_info )
 #elif defined TT_CONFIG_OPTION_BDF
   FT_DEFINE_SERVICEDESCREC4(
     sfnt_services,
 
-    FT_SERVICE_ID_SFNT_TABLE,           &SFNT_SERVICE_SFNT_TABLE_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_BDF,                  &SFNT_SERVICE_BDF_GET,
-    FT_SERVICE_ID_TT_CMAP,              &TT_SERVICE_CMAP_INFO_GET )
+    FT_SERVICE_ID_SFNT_TABLE,           &sfnt_service_sfnt_table,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
+    FT_SERVICE_ID_BDF,                  &sfnt_service_bdf,
+    FT_SERVICE_ID_TT_CMAP,              &tt_service_get_cmap_info )
 #else
   FT_DEFINE_SERVICEDESCREC3(
     sfnt_services,
 
-    FT_SERVICE_ID_SFNT_TABLE,           &SFNT_SERVICE_SFNT_TABLE_GET,
-    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &SFNT_SERVICE_PS_NAME_GET,
-    FT_SERVICE_ID_TT_CMAP,              &TT_SERVICE_CMAP_INFO_GET )
+    FT_SERVICE_ID_SFNT_TABLE,           &sfnt_service_sfnt_table,
+    FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name,
+    FT_SERVICE_ID_TT_CMAP,              &tt_service_get_cmap_info )
 #endif
 
 
@@ -1174,21 +1182,9 @@
   sfnt_get_interface( FT_Module    module,
                       const char*  module_interface )
   {
-    /* SFNT_SERVICES_GET dereferences `library' in PIC mode */
-#ifdef FT_CONFIG_OPTION_PIC
-    FT_Library  library;
-
-
-    if ( !module )
-      return NULL;
-    library = module->library;
-    if ( !library )
-      return NULL;
-#else
     FT_UNUSED( module );
-#endif
 
-    return ft_service_list_lookup( SFNT_SERVICES_GET, module_interface );
+    return ft_service_list_lookup( sfnt_services, module_interface );
   }
 
 
@@ -1198,6 +1194,12 @@
 #define PUT_EMBEDDED_BITMAPS( a )  NULL
 #endif
 
+#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
+#define PUT_COLOR_LAYERS( a )  a
+#else
+#define PUT_COLOR_LAYERS( a )  NULL
+#endif
+
 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
 #define PUT_PS_NAMES( a )  a
 #else
@@ -1256,9 +1258,24 @@
                             /* TT_Free_Table_Func      free_eblc       */
 
     PUT_EMBEDDED_BITMAPS( tt_face_set_sbit_strike     ),
-                            /* TT_Set_SBit_Strike_Func set_sbit_strike */
+                   /* TT_Set_SBit_Strike_Func      set_sbit_strike     */
     PUT_EMBEDDED_BITMAPS( tt_face_load_strike_metrics ),
-                    /* TT_Load_Strike_Metrics_Func load_strike_metrics */
+                   /* TT_Load_Strike_Metrics_Func  load_strike_metrics */
+
+    PUT_COLOR_LAYERS( tt_face_load_cpal ),
+                            /* TT_Load_Table_Func      load_cpal       */
+    PUT_COLOR_LAYERS( tt_face_load_colr ),
+                            /* TT_Load_Table_Func      load_colr       */
+    PUT_COLOR_LAYERS( tt_face_free_cpal ),
+                            /* TT_Free_Table_Func      free_cpal       */
+    PUT_COLOR_LAYERS( tt_face_free_colr ),
+                            /* TT_Free_Table_Func      free_colr       */
+    PUT_COLOR_LAYERS( tt_face_palette_set ),
+                            /* TT_Set_Palette_Func     set_palette     */
+    PUT_COLOR_LAYERS( tt_face_get_colr_layer ),
+                            /* TT_Get_Colr_Layer_Func  get_colr_layer  */
+    PUT_COLOR_LAYERS( tt_face_colr_blend_layer ),
+                            /* TT_Blend_Colr_Func      colr_blend      */
 
     tt_face_get_metrics,    /* TT_Get_Metrics_Func     get_metrics     */
 
@@ -1277,7 +1294,7 @@
     0x10000L,   /* driver version 1.0                     */
     0x20000L,   /* driver requires FreeType 2.0 or higher */
 
-    (const void*)&SFNT_INTERFACE_GET,  /* module specific interface */
+    (const void*)&sfnt_interface,  /* module specific interface */
 
     (FT_Module_Constructor)NULL,               /* module_init   */
     (FT_Module_Destructor) NULL,               /* module_done   */
diff --git a/thirdparty/freetype/src/sfnt/sfdriver.h b/thirdparty/freetype/src/sfnt/sfdriver.h
index 81c22d2887..8c174634b3 100644
--- a/thirdparty/freetype/src/sfnt/sfdriver.h
+++ b/thirdparty/freetype/src/sfnt/sfdriver.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfdriver.h                                                             */
-/*                                                                         */
-/*    High-level SFNT driver interface (specification).                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * sfdriver.h
+ *
+ *   High-level SFNT driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SFDRIVER_H_
@@ -26,10 +26,8 @@
 
 FT_BEGIN_HEADER
 
-
   FT_DECLARE_MODULE( sfnt_module_class )
 
-
 FT_END_HEADER
 
 #endif /* SFDRIVER_H_ */
diff --git a/thirdparty/freetype/src/sfnt/sferrors.h b/thirdparty/freetype/src/sfnt/sferrors.h
index 74003d4b38..43e148d295 100644
--- a/thirdparty/freetype/src/sfnt/sferrors.h
+++ b/thirdparty/freetype/src/sfnt/sferrors.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sferrors.h                                                             */
-/*                                                                         */
-/*    SFNT error codes (specification only).                               */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the SFNT error enumeration constants.     */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * sferrors.h
+ *
+ *   SFNT error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the SFNT error enumeration constants.
+   *
+   */
 
 #ifndef SFERRORS_H_
 #define SFERRORS_H_
diff --git a/thirdparty/freetype/src/sfnt/sfnt.c b/thirdparty/freetype/src/sfnt/sfnt.c
index 8b9a6b345d..5a503f30c5 100644
--- a/thirdparty/freetype/src/sfnt/sfnt.c
+++ b/thirdparty/freetype/src/sfnt/sfnt.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfnt.c                                                                 */
-/*                                                                         */
-/*    Single object library component.                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * sfnt.c
+ *
+ *   Single object library component.
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -21,10 +21,12 @@
 
 #include "pngshim.c"
 #include "sfdriver.c"
-#include "sfntpic.c"
 #include "sfobjs.c"
 #include "ttbdf.c"
 #include "ttcmap.c"
+#include "ttcolr.c"
+#include "ttcpal.c"
+
 #include "ttkern.c"
 #include "ttload.c"
 #include "ttmtx.c"
diff --git a/thirdparty/freetype/src/sfnt/sfntpic.c b/thirdparty/freetype/src/sfnt/sfntpic.c
deleted file mode 100644
index db2d816ce6..0000000000
--- a/thirdparty/freetype/src/sfnt/sfntpic.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfntpic.c                                                              */
-/*                                                                         */
-/*    The FreeType position independent code services for sfnt module.     */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "sfntpic.h"
-#include "sferrors.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from sfdriver.c */
-  FT_Error
-  FT_Create_Class_sfnt_services( FT_Library           library,
-                                 FT_ServiceDescRec**  output_class );
-  void
-  FT_Destroy_Class_sfnt_services( FT_Library          library,
-                                  FT_ServiceDescRec*  clazz );
-  void
-  FT_Init_Class_sfnt_service_bdf( FT_Service_BDFRec*  clazz );
-  void
-  FT_Init_Class_sfnt_interface( FT_Library       library,
-                                SFNT_Interface*  clazz );
-  void
-  FT_Init_Class_sfnt_service_glyph_dict(
-    FT_Library                library,
-    FT_Service_GlyphDictRec*  clazz );
-  void
-  FT_Init_Class_sfnt_service_ps_name(
-    FT_Library                 library,
-    FT_Service_PsFontNameRec*  clazz );
-  void
-  FT_Init_Class_tt_service_get_cmap_info(
-    FT_Library              library,
-    FT_Service_TTCMapsRec*  clazz );
-  void
-  FT_Init_Class_sfnt_service_sfnt_table(
-    FT_Service_SFNT_TableRec*  clazz );
-
-
-  /* forward declaration of PIC init functions from ttcmap.c */
-  FT_Error
-  FT_Create_Class_tt_cmap_classes( FT_Library       library,
-                                   TT_CMap_Class**  output_class );
-  void
-  FT_Destroy_Class_tt_cmap_classes( FT_Library      library,
-                                    TT_CMap_Class*  clazz );
-
-
-  void
-  sfnt_module_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->sfnt )
-    {
-      sfntModulePIC*  container = (sfntModulePIC*)pic_container->sfnt;
-
-
-      if ( container->sfnt_services )
-        FT_Destroy_Class_sfnt_services( library,
-                                        container->sfnt_services );
-      container->sfnt_services = NULL;
-
-      if ( container->tt_cmap_classes )
-        FT_Destroy_Class_tt_cmap_classes( library,
-                                          container->tt_cmap_classes );
-      container->tt_cmap_classes = NULL;
-
-      FT_FREE( container );
-      pic_container->sfnt = NULL;
-    }
-  }
-
-
-  FT_Error
-  sfnt_module_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    sfntModulePIC*     container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->sfnt = container;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    error = FT_Create_Class_sfnt_services( library,
-                                           &container->sfnt_services );
-    if ( error )
-      goto Exit;
-
-    error = FT_Create_Class_tt_cmap_classes( library,
-                                             &container->tt_cmap_classes );
-    if ( error )
-      goto Exit;
-
-    FT_Init_Class_sfnt_service_glyph_dict(
-      library, &container->sfnt_service_glyph_dict );
-    FT_Init_Class_sfnt_service_ps_name(
-      library, &container->sfnt_service_ps_name );
-    FT_Init_Class_tt_service_get_cmap_info(
-      library, &container->tt_service_get_cmap_info );
-    FT_Init_Class_sfnt_service_sfnt_table(
-      &container->sfnt_service_sfnt_table );
-#ifdef TT_CONFIG_OPTION_BDF
-    FT_Init_Class_sfnt_service_bdf( &container->sfnt_service_bdf );
-#endif
-    FT_Init_Class_sfnt_interface( library, &container->sfnt_interface );
-
-  Exit:
-    if ( error )
-      sfnt_module_class_pic_free( library );
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/sfnt/sfntpic.h b/thirdparty/freetype/src/sfnt/sfntpic.h
deleted file mode 100644
index 8f43122d81..0000000000
--- a/thirdparty/freetype/src/sfnt/sfntpic.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfntpic.h                                                              */
-/*                                                                         */
-/*    The FreeType position independent code services for sfnt module.     */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef SFNTPIC_H_
-#define SFNTPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define SFNT_SERVICES_GET            sfnt_services
-#define SFNT_SERVICE_GLYPH_DICT_GET  sfnt_service_glyph_dict
-#define SFNT_SERVICE_PS_NAME_GET     sfnt_service_ps_name
-#define TT_SERVICE_CMAP_INFO_GET     tt_service_get_cmap_info
-#define TT_CMAP_CLASSES_GET          tt_cmap_classes
-#define SFNT_SERVICE_SFNT_TABLE_GET  sfnt_service_sfnt_table
-#define SFNT_SERVICE_BDF_GET         sfnt_service_bdf
-#define SFNT_INTERFACE_GET           sfnt_interface
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-  /* some include files required for members of sfntModulePIC */
-#include FT_SERVICE_GLYPH_DICT_H
-#include FT_SERVICE_POSTSCRIPT_NAME_H
-#include FT_SERVICE_SFNT_H
-#include FT_SERVICE_TT_CMAP_H
-
-#ifdef TT_CONFIG_OPTION_BDF
-#include "ttbdf.h"
-#include FT_SERVICE_BDF_H
-#endif
-
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_STREAM_H
-#include FT_INTERNAL_SFNT_H
-#include "ttcmap.h"
-
-
-FT_BEGIN_HEADER
-
-  typedef struct  sfntModulePIC_
-  {
-    FT_ServiceDescRec*        sfnt_services;
-    FT_Service_GlyphDictRec   sfnt_service_glyph_dict;
-    FT_Service_PsFontNameRec  sfnt_service_ps_name;
-    FT_Service_TTCMapsRec     tt_service_get_cmap_info;
-    TT_CMap_Class*            tt_cmap_classes;
-    FT_Service_SFNT_TableRec  sfnt_service_sfnt_table;
-#ifdef TT_CONFIG_OPTION_BDF
-    FT_Service_BDFRec         sfnt_service_bdf;
-#endif
-    SFNT_Interface            sfnt_interface;
-
-  } sfntModulePIC;
-
-
-#define GET_PIC( lib )                                      \
-          ( (sfntModulePIC*)( (lib)->pic_container.sfnt ) )
-
-#define SFNT_SERVICES_GET                       \
-          ( GET_PIC( library )->sfnt_services )
-#define SFNT_SERVICE_GLYPH_DICT_GET                       \
-          ( GET_PIC( library )->sfnt_service_glyph_dict )
-#define SFNT_SERVICE_PS_NAME_GET                       \
-          ( GET_PIC( library )->sfnt_service_ps_name )
-#define TT_SERVICE_CMAP_INFO_GET                           \
-          ( GET_PIC( library )->tt_service_get_cmap_info )
-#define TT_CMAP_CLASSES_GET                       \
-          ( GET_PIC( library )->tt_cmap_classes )
-#define SFNT_SERVICE_SFNT_TABLE_GET                       \
-          ( GET_PIC( library )->sfnt_service_sfnt_table )
-#define SFNT_SERVICE_BDF_GET                       \
-          ( GET_PIC( library )->sfnt_service_bdf )
-#define SFNT_INTERFACE_GET                       \
-          ( GET_PIC( library )->sfnt_interface )
-
-
-  /* see sfntpic.c for the implementation */
-  void
-  sfnt_module_class_pic_free( FT_Library  library );
-
-  FT_Error
-  sfnt_module_class_pic_init( FT_Library  library );
-
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-  /* */
-
-#endif /* SFNTPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/sfnt/sfobjs.c b/thirdparty/freetype/src/sfnt/sfobjs.c
index 6ba8509f56..0b43d251b8 100644
--- a/thirdparty/freetype/src/sfnt/sfobjs.c
+++ b/thirdparty/freetype/src/sfnt/sfobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfobjs.c                                                               */
-/*                                                                         */
-/*    SFNT object management (base).                                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * sfobjs.c
+ *
+ *   SFNT object management (base).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -41,14 +41,14 @@
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_sfobjs
+#define FT_COMPONENT  sfobjs
 
 
 
@@ -918,7 +918,9 @@
     /* Stream may have changed in sfnt_open_font. */
     stream = face->root.stream;
 
-    FT_TRACE2(( "sfnt_init_face: %08p, %d\n", face, face_instance_index ));
+    FT_TRACE2(( "sfnt_init_face: %08p (index %d)\n",
+                face,
+                face_instance_index ));
 
     face_index = FT_ABS( face_instance_index ) & 0xFFFF;
 
@@ -1001,15 +1003,15 @@
         face->variation_support |= TT_FACE_FLAG_VAR_FVAR;
 
       /*
-       *  As documented in the OpenType specification, an entry for the
-       *  default instance may be omitted in the named instance table.  In
-       *  particular this means that even if there is no named instance
-       *  table in the font we actually do have a named instance, namely the
-       *  default instance.
+       * As documented in the OpenType specification, an entry for the
+       * default instance may be omitted in the named instance table.  In
+       * particular this means that even if there is no named instance
+       * table in the font we actually do have a named instance, namely the
+       * default instance.
        *
-       *  For consistency, we always want the default instance in our list
-       *  of named instances.  If it is missing, we try to synthesize it
-       *  later on.  Here, we have to adjust `num_instances' accordingly.
+       * For consistency, we always want the default instance in our list
+       * of named instances.  If it is missing, we try to synthesize it
+       * later on.  Here, we have to adjust `num_instances' accordingly.
        */
 
       if ( ( face->variation_support & TT_FACE_FLAG_VAR_FVAR ) &&
@@ -1341,6 +1343,13 @@
     if ( sfnt->load_eblc )
       LOAD_( eblc );
 
+    /* colored glyph support */
+    if ( sfnt->load_cpal )
+    {
+      LOAD_( cpal );
+      LOAD_( colr );
+    }
+
     /* consider the pclt, kerning, and gasp tables as optional */
     LOAD_( pclt );
     LOAD_( gasp );
@@ -1389,12 +1398,13 @@
       FT_Long  flags = root->face_flags;
 
 
-      /*********************************************************************/
-      /*                                                                   */
-      /* Compute face flags.                                               */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Compute face flags.
+       */
       if ( face->sbit_table_type == TT_SBIT_TABLE_TYPE_CBLC ||
-           face->sbit_table_type == TT_SBIT_TABLE_TYPE_SBIX )
+           face->sbit_table_type == TT_SBIT_TABLE_TYPE_SBIX ||
+           face->colr                                       )
         flags |= FT_FACE_FLAG_COLOR;      /* color glyphs */
 
       if ( has_outline == TRUE )
@@ -1438,10 +1448,10 @@
 
       root->face_flags = flags;
 
-      /*********************************************************************/
-      /*                                                                   */
-      /* Compute style flags.                                              */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Compute style flags.
+       */
 
       flags = 0;
       if ( has_outline == TRUE && face->os2.version != 0xFFFFU )
@@ -1471,14 +1481,14 @@
 
       root->style_flags |= flags;
 
-      /*********************************************************************/
-      /*                                                                   */
-      /* Polish the charmaps.                                              */
-      /*                                                                   */
-      /*   Try to set the charmap encoding according to the platform &     */
-      /*   encoding ID of each charmap.  Emulate Unicode charmap if one    */
-      /*   is missing.                                                     */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Polish the charmaps.
+       *
+       *   Try to set the charmap encoding according to the platform &
+       *   encoding ID of each charmap.  Emulate Unicode charmap if one
+       *   is missing.
+       */
 
       tt_face_build_cmaps( face );  /* ignore errors */
 
@@ -1521,7 +1531,8 @@
           error = FT_CMap_New( (FT_CMap_Class)&tt_cmap_unicode_class_rec,
                                NULL, &cmaprec, NULL );
           if ( error                                      &&
-               FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) )
+               FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) &&
+               FT_ERR_NEQ( error, Unimplemented_Feature ) )
             goto Exit;
           error = FT_Err_Ok;
 
@@ -1533,9 +1544,9 @@
 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
 
       /*
-       *  Now allocate the root array of FT_Bitmap_Size records and
-       *  populate them.  Unfortunately, it isn't possible to indicate bit
-       *  depths in the FT_Bitmap_Size record.  This is a design error.
+       * Now allocate the root array of FT_Bitmap_Size records and
+       * populate them.  Unfortunately, it isn't possible to indicate bit
+       * depths in the FT_Bitmap_Size record.  This is a design error.
        */
       {
         FT_UInt  count;
@@ -1615,10 +1626,10 @@
         root->face_flags |= FT_FACE_FLAG_SCALABLE;
 
 
-      /*********************************************************************/
-      /*                                                                   */
-      /*  Set up metrics.                                                  */
-      /*                                                                   */
+      /**********************************************************************
+       *
+       * Set up metrics.
+       */
       if ( FT_IS_SCALABLE( root ) )
       {
         /* XXX What about if outline header is missing */
@@ -1630,59 +1641,73 @@
         root->units_per_EM = face->header.Units_Per_EM;
 
 
-        /* XXX: Computing the ascender/descender/height is very different */
-        /*      from what the specification tells you.  Apparently, we    */
-        /*      must be careful because                                   */
-        /*                                                                */
-        /*      - not all fonts have an OS/2 table; in this case, we take */
-        /*        the values in the horizontal header.  However, these    */
-        /*        values very often are not reliable.                     */
-        /*                                                                */
-        /*      - otherwise, the correct typographic values are in the    */
-        /*        sTypoAscender, sTypoDescender & sTypoLineGap fields.    */
-        /*                                                                */
-        /*        However, certain fonts have these fields set to 0.      */
-        /*        Rather, they have usWinAscent & usWinDescent correctly  */
-        /*        set (but with different values).                        */
-        /*                                                                */
-        /*      As an example, Arial Narrow is implemented through four   */
-        /*      files ARIALN.TTF, ARIALNI.TTF, ARIALNB.TTF & ARIALNBI.TTF */
-        /*                                                                */
-        /*      Strangely, all fonts have the same values in their        */
-        /*      sTypoXXX fields, except ARIALNB which sets them to 0.     */
-        /*                                                                */
-        /*      On the other hand, they all have different                */
-        /*      usWinAscent/Descent values -- as a conclusion, the OS/2   */
-        /*      table cannot be used to compute the text height reliably! */
-        /*                                                                */
-
-        /* The ascender and descender are taken from the `hhea' table. */
-        /* If zero, they are taken from the `OS/2' table.              */
-
-        root->ascender  = face->horizontal.Ascender;
-        root->descender = face->horizontal.Descender;
-
-        root->height = root->ascender - root->descender +
-                       face->horizontal.Line_Gap;
-
-        if ( !( root->ascender || root->descender ) )
+        /*
+         * Computing the ascender/descender/height is tricky.
+         *
+         * The OpenType specification v1.8.3 says:
+         *
+         *   [OS/2's] sTypoAscender, sTypoDescender and sTypoLineGap fields
+         *   are intended to allow applications to lay out documents in a
+         *   typographically-correct and portable fashion.
+         *
+         * This is somewhat at odds with the decades of backwards
+         * compatibility, operating systems and applications doing whatever
+         * they want, not to mention broken fonts.
+         *
+         * Not all fonts have an OS/2 table; in this case, we take the values
+         * in the horizontal header, although there is nothing stopping the
+         * values from being unreliable. Even with a OS/2 table, certain fonts
+         * set the sTypoAscender, sTypoDescender and sTypoLineGap fields to 0
+         * and instead correctly set usWinAscent and usWinDescent.
+         *
+         * As an example, Arial Narrow is shipped as four files ARIALN.TTF,
+         * ARIALNI.TTF, ARIALNB.TTF and ARIALNBI.TTF. Strangely, all fonts have
+         * the same values in their sTypo* fields, except ARIALNB.ttf which
+         * sets them to 0. All of them have different usWinAscent/Descent
+         * values. The OS/2 table therefore cannot be trusted for computing the
+         * text height reliably.
+         *
+         * As a compromise, do the following:
+         *
+         * 1. If the OS/2 table exists and the fsSelection bit 7 is set
+         *    (USE_TYPO_METRICS), trust the font and use the sTypo* metrics.
+         * 2. Otherwise, use the `hhea' table's metrics.
+         * 3. If they are zero and the OS/2 table exists,
+         *    1. use the OS/2 table's sTypo* metrics if they are non-zero.
+         *    2. Otherwise, use the OS/2 table's usWin* metrics.
+         */
+
+        if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 128 )
         {
-          if ( face->os2.version != 0xFFFFU )
-          {
-            if ( face->os2.sTypoAscender || face->os2.sTypoDescender )
-            {
-              root->ascender  = face->os2.sTypoAscender;
-              root->descender = face->os2.sTypoDescender;
+          root->ascender  = face->os2.sTypoAscender;
+          root->descender = face->os2.sTypoDescender;
+          root->height    = root->ascender - root->descender +
+                            face->os2.sTypoLineGap;
+        }
+        else
+        {
+          root->ascender  = face->horizontal.Ascender;
+          root->descender = face->horizontal.Descender;
+          root->height    = root->ascender - root->descender +
+                            face->horizontal.Line_Gap;
 
-              root->height = root->ascender - root->descender +
-                             face->os2.sTypoLineGap;
-            }
-            else
+          if ( !( root->ascender || root->descender ) )
+          {
+            if ( face->os2.version != 0xFFFFU )
             {
-              root->ascender  =  (FT_Short)face->os2.usWinAscent;
-              root->descender = -(FT_Short)face->os2.usWinDescent;
-
-              root->height = root->ascender - root->descender;
+              if ( face->os2.sTypoAscender || face->os2.sTypoDescender )
+              {
+                root->ascender  = face->os2.sTypoAscender;
+                root->descender = face->os2.sTypoDescender;
+                root->height    = root->ascender - root->descender +
+                                  face->os2.sTypoLineGap;
+              }
+              else
+              {
+                root->ascender  =  (FT_Short)face->os2.usWinAscent;
+                root->descender = -(FT_Short)face->os2.usWinDescent;
+                root->height    =  root->ascender - root->descender;
+              }
             }
           }
         }
@@ -1737,6 +1762,13 @@
       /* destroy the embedded bitmaps table if it is loaded */
       if ( sfnt->free_eblc )
         sfnt->free_eblc( face );
+
+      /* destroy color table data if it is loaded */
+      if ( sfnt->free_cpal )
+      {
+        sfnt->free_cpal( face );
+        sfnt->free_colr( face );
+      }
     }
 
 #ifdef TT_CONFIG_OPTION_BDF
@@ -1792,11 +1824,18 @@
     FT_FREE( face->sbit_strike_map );
     face->root.num_fixed_sizes = 0;
 
-#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
     FT_FREE( face->postscript_name );
+
+#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
     FT_FREE( face->var_postscript_prefix );
 #endif
 
+    /* freeing glyph color palette data */
+    FT_FREE( face->palette_data.palette_name_ids );
+    FT_FREE( face->palette_data.palette_flags );
+    FT_FREE( face->palette_data.palette_entry_name_ids );
+    FT_FREE( face->palette );
+
     face->sfnt = NULL;
   }
 
diff --git a/thirdparty/freetype/src/sfnt/sfobjs.h b/thirdparty/freetype/src/sfnt/sfobjs.h
index 1b8d1be5b1..17b0d50105 100644
--- a/thirdparty/freetype/src/sfnt/sfobjs.h
+++ b/thirdparty/freetype/src/sfnt/sfobjs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  sfobjs.h                                                               */
-/*                                                                         */
-/*    SFNT object management (specification).                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * sfobjs.h
+ *
+ *   SFNT object management (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef SFOBJS_H_
diff --git a/thirdparty/freetype/src/sfnt/ttbdf.c b/thirdparty/freetype/src/sfnt/ttbdf.c
index 534201f229..853599fc43 100644
--- a/thirdparty/freetype/src/sfnt/ttbdf.c
+++ b/thirdparty/freetype/src/sfnt/ttbdf.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttbdf.c                                                                */
-/*                                                                         */
-/*    TrueType and OpenType embedded BDF properties (body).                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttbdf.c
+ *
+ *   TrueType and OpenType embedded BDF properties (body).
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -27,14 +27,14 @@
 
 #ifdef TT_CONFIG_OPTION_BDF
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttbdf
+#define FT_COMPONENT  ttbdf
 
 
   FT_LOCAL_DEF( void )
@@ -45,7 +45,7 @@
 
     if ( bdf->loaded )
     {
-      FT_Stream  stream = FT_FACE(face)->stream;
+      FT_Stream  stream = FT_FACE( face )->stream;
 
 
       if ( bdf->table )
@@ -111,8 +111,8 @@
         FT_UInt  num_items = FT_PEEK_USHORT( p + 2 );
 
         /*
-         *  We don't need to check the value sets themselves, since this
-         *  is done later.
+         * We don't need to check the value sets themselves, since this
+         * is done later.
          */
         strike += 10 * num_items;
 
@@ -142,7 +142,7 @@
                          BDF_PropertyRec  *aprop )
   {
     TT_BDF     bdf   = &face->bdf;
-    FT_Size    size  = FT_FACE(face)->size;
+    FT_Size    size  = FT_FACE( face )->size;
     FT_Error   error = FT_Err_Ok;
     FT_Byte*   p;
     FT_UInt    count;
diff --git a/thirdparty/freetype/src/sfnt/ttbdf.h b/thirdparty/freetype/src/sfnt/ttbdf.h
index 809a663001..e4164e61fc 100644
--- a/thirdparty/freetype/src/sfnt/ttbdf.h
+++ b/thirdparty/freetype/src/sfnt/ttbdf.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttbdf.h                                                                */
-/*                                                                         */
-/*    TrueType and OpenType embedded BDF properties (specification).       */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttbdf.h
+ *
+ *   TrueType and OpenType embedded BDF properties (specification).
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTBDF_H_
diff --git a/thirdparty/freetype/src/sfnt/ttcmap.c b/thirdparty/freetype/src/sfnt/ttcmap.c
index 996e66485f..8d9737310c 100644
--- a/thirdparty/freetype/src/sfnt/ttcmap.c
+++ b/thirdparty/freetype/src/sfnt/ttcmap.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttcmap.c                                                               */
-/*                                                                         */
-/*    TrueType character mapping table (cmap) support (body).              */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttcmap.c
+ *
+ *   TrueType character mapping table (cmap) support (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -27,17 +27,16 @@
 #include "ttload.h"
 #include "ttcmap.h"
 #include "ttpost.h"
-#include "sfntpic.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttcmap
+#define FT_COMPONENT  ttcmap
 
 
 #define TT_PEEK_SHORT   FT_PEEK_SHORT
@@ -77,19 +76,19 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME        OFFSET         TYPE          DESCRIPTION                */
-  /*                                                                       */
-  /*   format      0              USHORT        must be 0                  */
-  /*   length      2              USHORT        table length in bytes      */
-  /*   language    4              USHORT        Mac language code          */
-  /*   glyph_ids   6              BYTE[256]     array of glyph indices     */
-  /*               262                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME        OFFSET         TYPE          DESCRIPTION
+   *
+   *   format      0              USHORT        must be 0
+   *   length      2              USHORT        table length in bytes
+   *   language    4              USHORT        Mac language code
+   *   glyph_ids   6              BYTE[256]     array of glyph indices
+   *               262
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_0
 
@@ -238,57 +237,57 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME        OFFSET         TYPE            DESCRIPTION              */
-  /*                                                                       */
-  /*   format      0              USHORT          must be 2                */
-  /*   length      2              USHORT          table length in bytes    */
-  /*   language    4              USHORT          Mac language code        */
-  /*   keys        6              USHORT[256]     sub-header keys          */
-  /*   subs        518            SUBHEAD[NSUBS]  sub-headers array        */
-  /*   glyph_ids   518+NSUB*8     USHORT[]        glyph ID array           */
-  /*                                                                       */
-  /* The `keys' table is used to map charcode high bytes to sub-headers.   */
-  /* The value of `NSUBS' is the number of sub-headers defined in the      */
-  /* table and is computed by finding the maximum of the `keys' table.     */
-  /*                                                                       */
-  /* Note that for any `n', `keys[n]' is a byte offset within the `subs'   */
-  /* table, i.e., it is the corresponding sub-header index multiplied      */
-  /* by 8.                                                                 */
-  /*                                                                       */
-  /* Each sub-header has the following format.                             */
-  /*                                                                       */
-  /*   NAME        OFFSET      TYPE            DESCRIPTION                 */
-  /*                                                                       */
-  /*   first       0           USHORT          first valid low-byte        */
-  /*   count       2           USHORT          number of valid low-bytes   */
-  /*   delta       4           SHORT           see below                   */
-  /*   offset      6           USHORT          see below                   */
-  /*                                                                       */
-  /* A sub-header defines, for each high byte, the range of valid          */
-  /* low bytes within the charmap.  Note that the range defined by `first' */
-  /* and `count' must be completely included in the interval [0..255]      */
-  /* according to the specification.                                       */
-  /*                                                                       */
-  /* If a character code is contained within a given sub-header, then      */
-  /* mapping it to a glyph index is done as follows.                       */
-  /*                                                                       */
-  /* * The value of `offset' is read.  This is a _byte_ distance from the  */
-  /*   location of the `offset' field itself into a slice of the           */
-  /*   `glyph_ids' table.  Let's call it `slice' (it is a USHORT[], too).  */
-  /*                                                                       */
-  /* * The value `slice[char.lo - first]' is read.  If it is 0, there is   */
-  /*   no glyph for the charcode.  Otherwise, the value of `delta' is      */
-  /*   added to it (modulo 65536) to form a new glyph index.               */
-  /*                                                                       */
-  /* It is up to the validation routine to check that all offsets fall     */
-  /* within the glyph IDs table (and not within the `subs' table itself or */
-  /* outside of the CMap).                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME        OFFSET         TYPE            DESCRIPTION
+   *
+   *   format      0              USHORT          must be 2
+   *   length      2              USHORT          table length in bytes
+   *   language    4              USHORT          Mac language code
+   *   keys        6              USHORT[256]     sub-header keys
+   *   subs        518            SUBHEAD[NSUBS]  sub-headers array
+   *   glyph_ids   518+NSUB*8     USHORT[]        glyph ID array
+   *
+   * The `keys' table is used to map charcode high bytes to sub-headers.
+   * The value of `NSUBS' is the number of sub-headers defined in the
+   * table and is computed by finding the maximum of the `keys' table.
+   *
+   * Note that for any `n', `keys[n]' is a byte offset within the `subs'
+   * table, i.e., it is the corresponding sub-header index multiplied
+   * by 8.
+   *
+   * Each sub-header has the following format.
+   *
+   *   NAME        OFFSET      TYPE            DESCRIPTION
+   *
+   *   first       0           USHORT          first valid low-byte
+   *   count       2           USHORT          number of valid low-bytes
+   *   delta       4           SHORT           see below
+   *   offset      6           USHORT          see below
+   *
+   * A sub-header defines, for each high byte, the range of valid
+   * low bytes within the charmap.  Note that the range defined by `first'
+   * and `count' must be completely included in the interval [0..255]
+   * according to the specification.
+   *
+   * If a character code is contained within a given sub-header, then
+   * mapping it to a glyph index is done as follows.
+   *
+   * - The value of `offset' is read.  This is a _byte_ distance from the
+   *   location of the `offset' field itself into a slice of the
+   *   `glyph_ids' table.  Let's call it `slice' (it is a USHORT[], too).
+   *
+   * - The value `slice[char.lo - first]' is read.  If it is 0, there is
+   *   no glyph for the charcode.  Otherwise, the value of `delta' is
+   *   added to it (modulo 65536) to form a new glyph index.
+   *
+   * It is up to the validation routine to check that all offsets fall
+   * within the glyph IDs table (and not within the `subs' table itself or
+   * outside of the CMap).
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_2
 
@@ -626,68 +625,68 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME          OFFSET         TYPE              DESCRIPTION          */
-  /*                                                                       */
-  /*   format        0              USHORT            must be 4            */
-  /*   length        2              USHORT            table length         */
-  /*                                                  in bytes             */
-  /*   language      4              USHORT            Mac language code    */
-  /*                                                                       */
-  /*   segCountX2    6              USHORT            2*NUM_SEGS           */
-  /*   searchRange   8              USHORT            2*(1 << LOG_SEGS)    */
-  /*   entrySelector 10             USHORT            LOG_SEGS             */
-  /*   rangeShift    12             USHORT            segCountX2 -         */
-  /*                                                    searchRange        */
-  /*                                                                       */
-  /*   endCount      14             USHORT[NUM_SEGS]  end charcode for     */
-  /*                                                  each segment; last   */
-  /*                                                  is 0xFFFF            */
-  /*                                                                       */
-  /*   pad           14+NUM_SEGS*2  USHORT            padding              */
-  /*                                                                       */
-  /*   startCount    16+NUM_SEGS*2  USHORT[NUM_SEGS]  first charcode for   */
-  /*                                                  each segment         */
-  /*                                                                       */
-  /*   idDelta       16+NUM_SEGS*4  SHORT[NUM_SEGS]   delta for each       */
-  /*                                                  segment              */
-  /*   idOffset      16+NUM_SEGS*6  SHORT[NUM_SEGS]   range offset for     */
-  /*                                                  each segment; can be */
-  /*                                                  zero                 */
-  /*                                                                       */
-  /*   glyphIds      16+NUM_SEGS*8  USHORT[]          array of glyph ID    */
-  /*                                                  ranges               */
-  /*                                                                       */
-  /* Character codes are modelled by a series of ordered (increasing)      */
-  /* intervals called segments.  Each segment has start and end codes,     */
-  /* provided by the `startCount' and `endCount' arrays.  Segments must    */
-  /* not overlap, and the last segment should always contain the value     */
-  /* 0xFFFF for `endCount'.                                                */
-  /*                                                                       */
-  /* The fields `searchRange', `entrySelector' and `rangeShift' are better */
-  /* ignored (they are traces of over-engineering in the TrueType          */
-  /* specification).                                                       */
-  /*                                                                       */
-  /* Each segment also has a signed `delta', as well as an optional offset */
-  /* within the `glyphIds' table.                                          */
-  /*                                                                       */
-  /* If a segment's idOffset is 0, the glyph index corresponding to any    */
-  /* charcode within the segment is obtained by adding the value of        */
-  /* `idDelta' directly to the charcode, modulo 65536.                     */
-  /*                                                                       */
-  /* Otherwise, a glyph index is taken from the glyph IDs sub-array for    */
-  /* the segment, and the value of `idDelta' is added to it.               */
-  /*                                                                       */
-  /*                                                                       */
-  /* Finally, note that a lot of fonts contain an invalid last segment,    */
-  /* where `start' and `end' are correctly set to 0xFFFF but both `delta'  */
-  /* and `offset' are incorrect (e.g., `opens___.ttf' which comes with     */
-  /* OpenOffice.org).  We need special code to deal with them correctly.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME          OFFSET         TYPE              DESCRIPTION
+   *
+   *   format        0              USHORT            must be 4
+   *   length        2              USHORT            table length
+   *                                                  in bytes
+   *   language      4              USHORT            Mac language code
+   *
+   *   segCountX2    6              USHORT            2*NUM_SEGS
+   *   searchRange   8              USHORT            2*(1 << LOG_SEGS)
+   *   entrySelector 10             USHORT            LOG_SEGS
+   *   rangeShift    12             USHORT            segCountX2 -
+   *                                                    searchRange
+   *
+   *   endCount      14             USHORT[NUM_SEGS]  end charcode for
+   *                                                  each segment; last
+   *                                                  is 0xFFFF
+   *
+   *   pad           14+NUM_SEGS*2  USHORT            padding
+   *
+   *   startCount    16+NUM_SEGS*2  USHORT[NUM_SEGS]  first charcode for
+   *                                                  each segment
+   *
+   *   idDelta       16+NUM_SEGS*4  SHORT[NUM_SEGS]   delta for each
+   *                                                  segment
+   *   idOffset      16+NUM_SEGS*6  SHORT[NUM_SEGS]   range offset for
+   *                                                  each segment; can be
+   *                                                  zero
+   *
+   *   glyphIds      16+NUM_SEGS*8  USHORT[]          array of glyph ID
+   *                                                  ranges
+   *
+   * Character codes are modelled by a series of ordered (increasing)
+   * intervals called segments.  Each segment has start and end codes,
+   * provided by the `startCount' and `endCount' arrays.  Segments must
+   * not overlap, and the last segment should always contain the value
+   * 0xFFFF for `endCount'.
+   *
+   * The fields `searchRange', `entrySelector' and `rangeShift' are better
+   * ignored (they are traces of over-engineering in the TrueType
+   * specification).
+   *
+   * Each segment also has a signed `delta', as well as an optional offset
+   * within the `glyphIds' table.
+   *
+   * If a segment's idOffset is 0, the glyph index corresponding to any
+   * charcode within the segment is obtained by adding the value of
+   * `idDelta' directly to the charcode, modulo 65536.
+   *
+   * Otherwise, a glyph index is taken from the glyph IDs sub-array for
+   * the segment, and the value of `idDelta' is added to it.
+   *
+   *
+   * Finally, note that a lot of fonts contain an invalid last segment,
+   * where `start' and `end' are correctly set to 0xFFFF but both `delta'
+   * and `offset' are incorrect (e.g., `opens___.ttf' which comes with
+   * OpenOffice.org).  We need special code to deal with them correctly.
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_4
 
@@ -1573,23 +1572,23 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME        OFFSET          TYPE             DESCRIPTION            */
-  /*                                                                       */
-  /*   format       0              USHORT           must be 6              */
-  /*   length       2              USHORT           table length in bytes  */
-  /*   language     4              USHORT           Mac language code      */
-  /*                                                                       */
-  /*   first        6              USHORT           first segment code     */
-  /*   count        8              USHORT           segment size in chars  */
-  /*   glyphIds     10             USHORT[count]    glyph IDs              */
-  /*                                                                       */
-  /* A very simplified segment mapping.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME        OFFSET          TYPE             DESCRIPTION
+   *
+   *   format       0              USHORT           must be 6
+   *   length       2              USHORT           table length in bytes
+   *   language     4              USHORT           Mac language code
+   *
+   *   first        6              USHORT           first segment code
+   *   count        8              USHORT           segment size in chars
+   *   glyphIds     10             USHORT[count]    glyph IDs
+   *
+   * A very simplified segment mapping.
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_6
 
@@ -1768,26 +1767,26 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME        OFFSET         TYPE        DESCRIPTION                  */
-  /*                                                                       */
-  /*   format      0              USHORT      must be 8                    */
-  /*   reserved    2              USHORT      reserved                     */
-  /*   length      4              ULONG       length in bytes              */
-  /*   language    8              ULONG       Mac language code            */
-  /*   is32        12             BYTE[8192]  32-bitness bitmap            */
-  /*   count       8204           ULONG       number of groups             */
-  /*                                                                       */
-  /* This header is followed by `count' groups of the following format:    */
-  /*                                                                       */
-  /*   start       0              ULONG       first charcode               */
-  /*   end         4              ULONG       last charcode                */
-  /*   startId     8              ULONG       start glyph ID for the group */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME        OFFSET         TYPE        DESCRIPTION
+   *
+   *   format      0              USHORT      must be 8
+   *   reserved    2              USHORT      reserved
+   *   length      4              ULONG       length in bytes
+   *   language    8              ULONG       Mac language code
+   *   is32        12             BYTE[8192]  32-bitness bitmap
+   *   count       8204           ULONG       number of groups
+   *
+   * This header is followed by `count' groups of the following format:
+   *
+   *   start       0              ULONG       first charcode
+   *   end         4              ULONG       last charcode
+   *   startId     8              ULONG       start glyph ID for the group
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_8
 
@@ -2037,22 +2036,22 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME      OFFSET  TYPE               DESCRIPTION                    */
-  /*                                                                       */
-  /*   format     0      USHORT             must be 10                     */
-  /*   reserved   2      USHORT             reserved                       */
-  /*   length     4      ULONG              length in bytes                */
-  /*   language   8      ULONG              Mac language code              */
-  /*                                                                       */
-  /*   start     12      ULONG              first char in range            */
-  /*   count     16      ULONG              number of chars in range       */
-  /*   glyphIds  20      USHORT[count]      glyph indices covered          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME      OFFSET  TYPE               DESCRIPTION
+   *
+   *   format     0      USHORT             must be 10
+   *   reserved   2      USHORT             reserved
+   *   length     4      ULONG              length in bytes
+   *   language   8      ULONG              Mac language code
+   *
+   *   start     12      ULONG              first char in range
+   *   count     16      ULONG              number of chars in range
+   *   glyphIds  20      USHORT[count]      glyph indices covered
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_10
 
@@ -2209,26 +2208,26 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME        OFFSET     TYPE       DESCRIPTION                       */
-  /*                                                                       */
-  /*   format      0          USHORT     must be 12                        */
-  /*   reserved    2          USHORT     reserved                          */
-  /*   length      4          ULONG      length in bytes                   */
-  /*   language    8          ULONG      Mac language code                 */
-  /*   count       12         ULONG      number of groups                  */
-  /*               16                                                      */
-  /*                                                                       */
-  /* This header is followed by `count' groups of the following format:    */
-  /*                                                                       */
-  /*   start       0          ULONG      first charcode                    */
-  /*   end         4          ULONG      last charcode                     */
-  /*   startId     8          ULONG      start glyph ID for the group      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME        OFFSET     TYPE       DESCRIPTION
+   *
+   *   format      0          USHORT     must be 12
+   *   reserved    2          USHORT     reserved
+   *   length      4          ULONG      length in bytes
+   *   language    8          ULONG      Mac language code
+   *   count       12         ULONG      number of groups
+   *               16
+   *
+   * This header is followed by `count' groups of the following format:
+   *
+   *   start       0          ULONG      first charcode
+   *   end         4          ULONG      last charcode
+   *   startId     8          ULONG      start glyph ID for the group
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_12
 
@@ -2565,26 +2564,26 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME        OFFSET     TYPE       DESCRIPTION                       */
-  /*                                                                       */
-  /*   format      0          USHORT     must be 13                        */
-  /*   reserved    2          USHORT     reserved                          */
-  /*   length      4          ULONG      length in bytes                   */
-  /*   language    8          ULONG      Mac language code                 */
-  /*   count       12         ULONG      number of groups                  */
-  /*               16                                                      */
-  /*                                                                       */
-  /* This header is followed by `count' groups of the following format:    */
-  /*                                                                       */
-  /*   start       0          ULONG      first charcode                    */
-  /*   end         4          ULONG      last charcode                     */
-  /*   glyphId     8          ULONG      glyph ID for the whole group      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME        OFFSET     TYPE       DESCRIPTION
+   *
+   *   format      0          USHORT     must be 13
+   *   reserved    2          USHORT     reserved
+   *   length      4          ULONG      length in bytes
+   *   language    8          ULONG      Mac language code
+   *   count       12         ULONG      number of groups
+   *               16
+   *
+   * This header is followed by `count' groups of the following format:
+   *
+   *   start       0          ULONG      first charcode
+   *   end         4          ULONG      last charcode
+   *   glyphId     8          ULONG      glyph ID for the whole group
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_13
 
@@ -2891,58 +2890,59 @@
   /*************************************************************************/
   /*************************************************************************/
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TABLE OVERVIEW                                                        */
-  /* --------------                                                        */
-  /*                                                                       */
-  /*   NAME         OFFSET  TYPE    DESCRIPTION                            */
-  /*                                                                       */
-  /*   format         0     USHORT  must be 14                             */
-  /*   length         2     ULONG   table length in bytes                  */
-  /*   numSelector    6     ULONG   number of variation sel. records       */
-  /*                                                                       */
-  /* Followed by numSelector records, each of which looks like             */
-  /*                                                                       */
-  /*   varSelector    0     UINT24  Unicode codepoint of sel.              */
-  /*   defaultOff     3     ULONG   offset to a default UVS table          */
-  /*                                describing any variants to be found in */
-  /*                                the normal Unicode subtable.           */
-  /*   nonDefOff      7     ULONG   offset to a non-default UVS table      */
-  /*                                describing any variants not in the     */
-  /*                                standard cmap, with GIDs here          */
-  /* (either offset may be 0 NULL)                                         */
-  /*                                                                       */
-  /* Selectors are sorted by code point.                                   */
-  /*                                                                       */
-  /* A default Unicode Variation Selector (UVS) subtable is just a list of */
-  /* ranges of code points which are to be found in the standard cmap.  No */
-  /* glyph IDs (GIDs) here.                                                */
-  /*                                                                       */
-  /*   numRanges      0     ULONG   number of ranges following             */
-  /*                                                                       */
-  /* A range looks like                                                    */
-  /*                                                                       */
-  /*   uniStart       0     UINT24  code point of the first character in   */
-  /*                                this range                             */
-  /*   additionalCnt  3     UBYTE   count of additional characters in this */
-  /*                                range (zero means a range of a single  */
-  /*                                character)                             */
-  /*                                                                       */
-  /* Ranges are sorted by `uniStart'.                                      */
-  /*                                                                       */
-  /* A non-default Unicode Variation Selector (UVS) subtable is a list of  */
-  /* mappings from codepoint to GID.                                       */
-  /*                                                                       */
-  /*   numMappings    0     ULONG   number of mappings                     */
-  /*                                                                       */
-  /* A range looks like                                                    */
-  /*                                                                       */
-  /*   uniStart       0     UINT24  code point of the first character in   */
-  /*                                this range                             */
-  /*   GID            3     USHORT  and its GID                            */
-  /*                                                                       */
-  /* Ranges are sorted by `uniStart'.                                      */
+  /**************************************************************************
+   *
+   * TABLE OVERVIEW
+   * --------------
+   *
+   *   NAME         OFFSET  TYPE    DESCRIPTION
+   *
+   *   format         0     USHORT  must be 14
+   *   length         2     ULONG   table length in bytes
+   *   numSelector    6     ULONG   number of variation sel. records
+   *
+   * Followed by numSelector records, each of which looks like
+   *
+   *   varSelector    0     UINT24  Unicode codepoint of sel.
+   *   defaultOff     3     ULONG   offset to a default UVS table
+   *                                describing any variants to be found in
+   *                                the normal Unicode subtable.
+   *   nonDefOff      7     ULONG   offset to a non-default UVS table
+   *                                describing any variants not in the
+   *                                standard cmap, with GIDs here
+   * (either offset may be 0 NULL)
+   *
+   * Selectors are sorted by code point.
+   *
+   * A default Unicode Variation Selector (UVS) subtable is just a list of
+   * ranges of code points which are to be found in the standard cmap.  No
+   * glyph IDs (GIDs) here.
+   *
+   *   numRanges      0     ULONG   number of ranges following
+   *
+   * A range looks like
+   *
+   *   uniStart       0     UINT24  code point of the first character in
+   *                                this range
+   *   additionalCnt  3     UBYTE   count of additional characters in this
+   *                                range (zero means a range of a single
+   *                                character)
+   *
+   * Ranges are sorted by `uniStart'.
+   *
+   * A non-default Unicode Variation Selector (UVS) subtable is a list of
+   * mappings from codepoint to GID.
+   *
+   *   numMappings    0     ULONG   number of mappings
+   *
+   * A range looks like
+   *
+   *   uniStart       0     UINT24  code point of the first character in
+   *                                this range
+   *   GID            3     USHORT  and its GID
+   *
+   * Ranges are sorted by `uniStart'.
+   */
 
 #ifdef TT_CONFIG_CMAP_FORMAT_14
 
@@ -3681,6 +3681,9 @@
     FT_UNUSED( pointer );
 
 
+    if ( !psnames->unicodes_init )
+      return FT_THROW( Unimplemented_Feature );
+
     return psnames->unicodes_init( memory,
                                    unicodes,
                                    face->root.num_glyphs,
@@ -3749,7 +3752,6 @@
 
 #endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */
 
-#ifndef FT_CONFIG_OPTION_PIC
 
   static const TT_CMap_Class  tt_cmap_classes[] =
   {
@@ -3758,61 +3760,6 @@
     NULL,
   };
 
-#else /*FT_CONFIG_OPTION_PIC*/
-
-  void
-  FT_Destroy_Class_tt_cmap_classes( FT_Library      library,
-                                    TT_CMap_Class*  clazz )
-  {
-    FT_Memory  memory = library->memory;
-
-
-    if ( clazz )
-      FT_FREE( clazz );
-  }
-
-
-  FT_Error
-  FT_Create_Class_tt_cmap_classes( FT_Library       library,
-                                   TT_CMap_Class**  output_class )
-  {
-    TT_CMap_Class*     clazz  = NULL;
-    TT_CMap_ClassRec*  recs;
-    FT_Error           error;
-    FT_Memory          memory = library->memory;
-
-    int  i = 0;
-
-
-#define TTCMAPCITEM( a ) i++;
-#include "ttcmapc.h"
-
-    /* allocate enough space for both the pointers */
-    /* plus terminator and the class instances     */
-    if ( FT_ALLOC( clazz, sizeof ( *clazz ) * ( i + 1 ) +
-                          sizeof ( TT_CMap_ClassRec ) * i ) )
-      return error;
-
-    /* the location of the class instances follows the array of pointers */
-    recs = (TT_CMap_ClassRec*)( (char*)clazz +
-                                sizeof ( *clazz ) * ( i + 1 ) );
-    i    = 0;
-
-#undef TTCMAPCITEM
-#define  TTCMAPCITEM( a )             \
-    FT_Init_Class_ ## a( &recs[i] );  \
-    clazz[i] = &recs[i];              \
-    i++;
-#include "ttcmapc.h"
-
-    clazz[i] = NULL;
-
-    *output_class = clazz;
-    return FT_Err_Ok;
-  }
-
-#endif /*FT_CONFIG_OPTION_PIC*/
-
 
   /* parse the `cmap' table and build the corresponding TT_CMap objects */
   /* in the current face                                                */
@@ -3859,7 +3806,7 @@
       {
         FT_Byte* volatile              cmap   = table + offset;
         volatile FT_UInt               format = TT_PEEK_USHORT( cmap );
-        const TT_CMap_Class* volatile  pclazz = TT_CMAP_CLASSES_GET;
+        const TT_CMap_Class* volatile  pclazz = tt_cmap_classes;
         TT_CMap_Class volatile         clazz;
 
 
diff --git a/thirdparty/freetype/src/sfnt/ttcmap.h b/thirdparty/freetype/src/sfnt/ttcmap.h
index d264d99d2c..36801c939e 100644
--- a/thirdparty/freetype/src/sfnt/ttcmap.h
+++ b/thirdparty/freetype/src/sfnt/ttcmap.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttcmap.h                                                               */
-/*                                                                         */
-/*    TrueType character mapping table (cmap) support (specification).     */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttcmap.h
+ *
+ *   TrueType character mapping table (cmap) support (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTCMAP_H_
@@ -56,8 +56,6 @@ FT_BEGIN_HEADER
   } TT_CMap_ClassRec;
 
 
-#ifndef FT_CONFIG_OPTION_PIC
-
 #define FT_DEFINE_TT_CMAP( class_,             \
                            size_,              \
                            init_,              \
@@ -92,42 +90,6 @@ FT_BEGIN_HEADER
     get_cmap_info_                             \
   };
 
-#else /* FT_CONFIG_OPTION_PIC */
-
-#define FT_DEFINE_TT_CMAP( class_,                      \
-                           size_,                       \
-                           init_,                       \
-                           done_,                       \
-                           char_index_,                 \
-                           char_next_,                  \
-                           char_var_index_,             \
-                           char_var_default_,           \
-                           variant_list_,               \
-                           charvariant_list_,           \
-                           variantchar_list_,           \
-                           format_,                     \
-                           validate_,                   \
-                           get_cmap_info_ )             \
-  void                                                  \
-  FT_Init_Class_ ## class_( TT_CMap_ClassRec*  clazz )  \
-  {                                                     \
-    clazz->clazz.size             = size_;              \
-    clazz->clazz.init             = init_;              \
-    clazz->clazz.done             = done_;              \
-    clazz->clazz.char_index       = char_index_;        \
-    clazz->clazz.char_next        = char_next_;         \
-    clazz->clazz.char_var_index   = char_var_index_;    \
-    clazz->clazz.char_var_default = char_var_default_;  \
-    clazz->clazz.variant_list     = variant_list_;      \
-    clazz->clazz.charvariant_list = charvariant_list_;  \
-    clazz->clazz.variantchar_list = variantchar_list_;  \
-    clazz->format                 = format_;            \
-    clazz->validate               = validate_;          \
-    clazz->get_cmap_info          = get_cmap_info_;     \
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
 
   typedef struct  TT_ValidatorRec_
   {
diff --git a/thirdparty/freetype/src/sfnt/ttcmapc.h b/thirdparty/freetype/src/sfnt/ttcmapc.h
index 4980e9dd3d..ace9e69ca8 100644
--- a/thirdparty/freetype/src/sfnt/ttcmapc.h
+++ b/thirdparty/freetype/src/sfnt/ttcmapc.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttcmapc.h                                                              */
-/*                                                                         */
-/*    TT CMAP classes definitions (specification only).                    */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttcmapc.h
+ *
+ *   TT CMAP classes definitions (specification only).
+ *
+ * Copyright (C) 2009-2019 by
+ * Oran Agra and Mickey Gabel.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifdef TT_CONFIG_CMAP_FORMAT_0
diff --git a/thirdparty/freetype/src/sfnt/ttcolr.c b/thirdparty/freetype/src/sfnt/ttcolr.c
new file mode 100644
index 0000000000..6b537d95b8
--- /dev/null
+++ b/thirdparty/freetype/src/sfnt/ttcolr.c
@@ -0,0 +1,451 @@
+/****************************************************************************
+ *
+ * ttcolr.c
+ *
+ *   TrueType and OpenType colored glyph layer support (body).
+ *
+ * Copyright (C) 2018-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Originally written by Shao Yu Zhang <shaozhang@fb.com>.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * `COLR' table specification:
+   *
+   *   https://www.microsoft.com/typography/otspec/colr.htm
+   *
+   */
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_TRUETYPE_TAGS_H
+#include FT_COLOR_H
+
+
+#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
+
+#include "ttcolr.h"
+
+
+  /* NOTE: These are the table sizes calculated through the specs. */
+#define BASE_GLYPH_SIZE            6
+#define LAYER_SIZE                 4
+#define COLR_HEADER_SIZE          14
+
+
+  typedef struct BaseGlyphRecord_
+  {
+    FT_UShort  gid;
+    FT_UShort  first_layer_index;
+    FT_UShort  num_layers;
+
+  } BaseGlyphRecord;
+
+
+  typedef struct Colr_
+  {
+    FT_UShort  version;
+    FT_UShort  num_base_glyphs;
+    FT_UShort  num_layers;
+
+    FT_Byte*  base_glyphs;
+    FT_Byte*  layers;
+
+    /* The memory which backs up the `COLR' table. */
+    void*     table;
+    FT_ULong  table_size;
+
+  } Colr;
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  ttcolr
+
+
+  FT_LOCAL_DEF( FT_Error )
+  tt_face_load_colr( TT_Face    face,
+                     FT_Stream  stream )
+  {
+    FT_Error   error;
+    FT_Memory  memory = face->root.memory;
+
+    FT_Byte*  table = NULL;
+    FT_Byte*  p     = NULL;
+
+    Colr*  colr = NULL;
+
+    FT_ULong  base_glyph_offset, layer_offset;
+    FT_ULong  table_size;
+
+
+    /* `COLR' always needs `CPAL' */
+    if ( !face->cpal )
+      return FT_THROW( Invalid_File_Format );
+
+    error = face->goto_table( face, TTAG_COLR, stream, &table_size );
+    if ( error )
+      goto NoColr;
+
+    if ( table_size < COLR_HEADER_SIZE )
+      goto InvalidTable;
+
+    if ( FT_FRAME_EXTRACT( table_size, table ) )
+      goto NoColr;
+
+    p = table;
+
+    if ( FT_NEW( colr ) )
+      goto NoColr;
+
+    colr->version = FT_NEXT_USHORT( p );
+    if ( colr->version != 0 )
+      goto InvalidTable;
+
+    colr->num_base_glyphs = FT_NEXT_USHORT( p );
+    base_glyph_offset     = FT_NEXT_ULONG( p );
+
+    if ( base_glyph_offset >= table_size )
+      goto InvalidTable;
+    if ( colr->num_base_glyphs * BASE_GLYPH_SIZE >
+           table_size - base_glyph_offset )
+      goto InvalidTable;
+
+    layer_offset     = FT_NEXT_ULONG( p );
+    colr->num_layers = FT_NEXT_USHORT( p );
+
+    if ( layer_offset >= table_size )
+      goto InvalidTable;
+    if ( colr->num_layers * LAYER_SIZE > table_size - layer_offset )
+      goto InvalidTable;
+
+    colr->base_glyphs = (FT_Byte*)( table + base_glyph_offset );
+    colr->layers      = (FT_Byte*)( table + layer_offset      );
+    colr->table       = table;
+    colr->table_size  = table_size;
+
+    face->colr = colr;
+
+    return FT_Err_Ok;
+
+  InvalidTable:
+    error = FT_THROW( Invalid_Table );
+
+  NoColr:
+    FT_FRAME_RELEASE( table );
+    FT_FREE( colr );
+
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  tt_face_free_colr( TT_Face  face )
+  {
+    FT_Stream  stream = face->root.stream;
+    FT_Memory  memory = face->root.memory;
+
+    Colr*  colr = (Colr*)face->colr;
+
+
+    if ( colr )
+    {
+      FT_FRAME_RELEASE( colr->table );
+      FT_FREE( colr );
+    }
+  }
+
+
+  static FT_Bool
+  find_base_glyph_record( FT_Byte*          base_glyph_begin,
+                          FT_Int            num_base_glyph,
+                          FT_UInt           glyph_id,
+                          BaseGlyphRecord*  record )
+  {
+    FT_Int  min = 0;
+    FT_Int  max = num_base_glyph - 1;
+
+
+    while ( min <= max )
+    {
+      FT_Int    mid = min + ( max - min ) / 2;
+      FT_Byte*  p   = base_glyph_begin + mid * BASE_GLYPH_SIZE;
+
+      FT_UShort  gid = FT_NEXT_USHORT( p );
+
+
+      if ( gid < glyph_id )
+        min = mid + 1;
+      else if (gid > glyph_id )
+        max = mid - 1;
+      else
+      {
+        record->gid               = gid;
+        record->first_layer_index = FT_NEXT_USHORT( p );
+        record->num_layers        = FT_NEXT_USHORT( p );
+
+        return 1;
+      }
+    }
+
+    return 0;
+  }
+
+
+  FT_LOCAL_DEF( FT_Bool )
+  tt_face_get_colr_layer( TT_Face            face,
+                          FT_UInt            base_glyph,
+                          FT_UInt           *aglyph_index,
+                          FT_UInt           *acolor_index,
+                          FT_LayerIterator*  iterator )
+  {
+    Colr*            colr = (Colr*)face->colr;
+    BaseGlyphRecord  glyph_record;
+
+
+    if ( !colr )
+      return 0;
+
+    if ( !iterator->p )
+    {
+      FT_ULong  offset;
+
+
+      /* first call to function */
+      iterator->layer = 0;
+
+      if ( !find_base_glyph_record( colr->base_glyphs,
+                                    colr->num_base_glyphs,
+                                    base_glyph,
+                                    &glyph_record ) )
+        return 0;
+
+      if ( glyph_record.num_layers )
+        iterator->num_layers = glyph_record.num_layers;
+      else
+        return 0;
+
+      offset = LAYER_SIZE * glyph_record.first_layer_index;
+      if ( offset + LAYER_SIZE * glyph_record.num_layers > colr->table_size )
+        return 0;
+
+      iterator->p = colr->layers + offset;
+    }
+
+    if ( iterator->layer >= iterator->num_layers )
+      return 0;
+
+    *aglyph_index = FT_NEXT_USHORT( iterator->p );
+    *acolor_index = FT_NEXT_USHORT( iterator->p );
+
+    if ( *aglyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs )   ||
+         ( *acolor_index != 0xFFFF                                 &&
+           *acolor_index >= face->palette_data.num_palette_entries ) )
+      return 0;
+
+    iterator->layer++;
+
+    return 1;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  tt_face_colr_blend_layer( TT_Face       face,
+                            FT_UInt       color_index,
+                            FT_GlyphSlot  dstSlot,
+                            FT_GlyphSlot  srcSlot )
+  {
+    FT_Error  error;
+
+    FT_UInt  x, y;
+    FT_Byte  b, g, r, alpha;
+
+    FT_ULong  size;
+    FT_Byte*  src;
+    FT_Byte*  dst;
+
+
+    if ( !dstSlot->bitmap.buffer )
+    {
+      /* Initialize destination of color bitmap */
+      /* with the size of first component.      */
+      dstSlot->bitmap_left = srcSlot->bitmap_left;
+      dstSlot->bitmap_top  = srcSlot->bitmap_top;
+
+      dstSlot->bitmap.width      = srcSlot->bitmap.width;
+      dstSlot->bitmap.rows       = srcSlot->bitmap.rows;
+      dstSlot->bitmap.pixel_mode = FT_PIXEL_MODE_BGRA;
+      dstSlot->bitmap.pitch      = (int)dstSlot->bitmap.width * 4;
+      dstSlot->bitmap.num_grays  = 256;
+
+      size = dstSlot->bitmap.rows * (unsigned int)dstSlot->bitmap.pitch;
+
+      error = ft_glyphslot_alloc_bitmap( dstSlot, size );
+      if ( error )
+        return error;
+
+      FT_MEM_ZERO( dstSlot->bitmap.buffer, size );
+    }
+    else
+    {
+      /* Resize destination if needed such that new component fits. */
+      FT_Int  x_min, x_max, y_min, y_max;
+
+
+      x_min = FT_MIN( dstSlot->bitmap_left, srcSlot->bitmap_left );
+      x_max = FT_MAX( dstSlot->bitmap_left + (FT_Int)dstSlot->bitmap.width,
+                      srcSlot->bitmap_left + (FT_Int)srcSlot->bitmap.width );
+
+      y_min = FT_MIN( dstSlot->bitmap_top - (FT_Int)dstSlot->bitmap.rows,
+                      srcSlot->bitmap_top - (FT_Int)srcSlot->bitmap.rows );
+      y_max = FT_MAX( dstSlot->bitmap_top, srcSlot->bitmap_top );
+
+      if ( x_min != dstSlot->bitmap_left                                 ||
+           x_max != dstSlot->bitmap_left + (FT_Int)dstSlot->bitmap.width ||
+           y_min != dstSlot->bitmap_top - (FT_Int)dstSlot->bitmap.rows   ||
+           y_max != dstSlot->bitmap_top                                  )
+      {
+        FT_Memory  memory = face->root.memory;
+
+        FT_UInt  width = (FT_UInt)( x_max - x_min );
+        FT_UInt  rows  = (FT_UInt)( y_max - y_min );
+        FT_UInt  pitch = width * 4;
+
+        FT_Byte*  buf = NULL;
+        FT_Byte*  p;
+        FT_Byte*  q;
+
+
+        size  = rows * pitch;
+        if ( FT_ALLOC( buf, size ) )
+          return error;
+
+        p = dstSlot->bitmap.buffer;
+        q = buf +
+            (int)pitch * ( y_max - dstSlot->bitmap_top ) +
+            4 * ( dstSlot->bitmap_left - x_min );
+
+        for ( y = 0; y < dstSlot->bitmap.rows; y++ )
+        {
+          FT_MEM_COPY( q, p, dstSlot->bitmap.width * 4 );
+
+          p += dstSlot->bitmap.pitch;
+          q += pitch;
+        }
+
+        ft_glyphslot_set_bitmap( dstSlot, buf );
+
+        dstSlot->bitmap_top  = y_max;
+        dstSlot->bitmap_left = x_min;
+
+        dstSlot->bitmap.width = width;
+        dstSlot->bitmap.rows  = rows;
+        dstSlot->bitmap.pitch = (int)pitch;
+
+        dstSlot->internal->flags |= FT_GLYPH_OWN_BITMAP;
+        dstSlot->format           = FT_GLYPH_FORMAT_BITMAP;
+      }
+    }
+
+    if ( color_index == 0xFFFF )
+    {
+      if ( face->have_foreground_color )
+      {
+        b     = face->foreground_color.blue;
+        g     = face->foreground_color.green;
+        r     = face->foreground_color.red;
+        alpha = face->foreground_color.alpha;
+      }
+      else
+      {
+        if ( face->palette_data.palette_flags                          &&
+             ( face->palette_data.palette_flags[face->palette_index] &
+                 FT_PALETTE_FOR_DARK_BACKGROUND                      ) )
+        {
+          /* white opaque */
+          b     = 0xFF;
+          g     = 0xFF;
+          r     = 0xFF;
+          alpha = 0xFF;
+        }
+        else
+        {
+          /* black opaque */
+          b     = 0x00;
+          g     = 0x00;
+          r     = 0x00;
+          alpha = 0xFF;
+        }
+      }
+    }
+    else
+    {
+      b     = face->palette[color_index].blue;
+      g     = face->palette[color_index].green;
+      r     = face->palette[color_index].red;
+      alpha = face->palette[color_index].alpha;
+    }
+
+    /* XXX Convert if srcSlot.bitmap is not grey? */
+    src = srcSlot->bitmap.buffer;
+    dst = dstSlot->bitmap.buffer +
+          dstSlot->bitmap.pitch * ( dstSlot->bitmap_top - srcSlot->bitmap_top ) +
+          4 * ( srcSlot->bitmap_left - dstSlot->bitmap_left );
+
+    for ( y = 0; y < srcSlot->bitmap.rows; y++ )
+    {
+      for ( x = 0; x < srcSlot->bitmap.width; x++ )
+      {
+        int  aa = src[x];
+        int  fa = alpha * aa / 255;
+
+        int  fb = b * fa / 255;
+        int  fg = g * fa / 255;
+        int  fr = r * fa / 255;
+
+        int  ba2 = 255 - fa;
+
+        int  bb = dst[4 * x + 0];
+        int  bg = dst[4 * x + 1];
+        int  br = dst[4 * x + 2];
+        int  ba = dst[4 * x + 3];
+
+
+        dst[4 * x + 0] = (FT_Byte)( bb * ba2 / 255 + fb );
+        dst[4 * x + 1] = (FT_Byte)( bg * ba2 / 255 + fg );
+        dst[4 * x + 2] = (FT_Byte)( br * ba2 / 255 + fr );
+        dst[4 * x + 3] = (FT_Byte)( ba * ba2 / 255 + fa );
+      }
+
+      src += srcSlot->bitmap.pitch;
+      dst += dstSlot->bitmap.pitch;
+    }
+
+    return FT_Err_Ok;
+  }
+
+#else /* !TT_CONFIG_OPTION_COLOR_LAYERS */
+
+  /* ANSI C doesn't like empty source files */
+  typedef int  _tt_colr_dummy;
+
+#endif /* !TT_CONFIG_OPTION_COLOR_LAYERS */
+
+/* EOF */
diff --git a/thirdparty/freetype/src/sfnt/ttcolr.h b/thirdparty/freetype/src/sfnt/ttcolr.h
new file mode 100644
index 0000000000..817489a855
--- /dev/null
+++ b/thirdparty/freetype/src/sfnt/ttcolr.h
@@ -0,0 +1,58 @@
+/****************************************************************************
+ *
+ * ttcolr.h
+ *
+ *   TrueType and OpenType colored glyph layer support (specification).
+ *
+ * Copyright (C) 2018-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Originally written by Shao Yu Zhang <shaozhang@fb.com>.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef __TTCOLR_H__
+#define __TTCOLR_H__
+
+
+#include <ft2build.h>
+#include "ttload.h"
+
+
+FT_BEGIN_HEADER
+
+
+  FT_LOCAL( FT_Error )
+  tt_face_load_colr( TT_Face    face,
+                     FT_Stream  stream );
+
+  FT_LOCAL( void )
+  tt_face_free_colr( TT_Face  face );
+
+  FT_LOCAL( FT_Bool )
+  tt_face_get_colr_layer( TT_Face            face,
+                          FT_UInt            base_glyph,
+                          FT_UInt           *aglyph_index,
+                          FT_UInt           *acolor_index,
+                          FT_LayerIterator*  iterator );
+
+  FT_LOCAL( FT_Error )
+  tt_face_colr_blend_layer( TT_Face       face,
+                            FT_UInt       color_index,
+                            FT_GlyphSlot  dstSlot,
+                            FT_GlyphSlot  srcSlot );
+
+
+FT_END_HEADER
+
+
+#endif /* __TTCOLR_H__ */
+
+/* END */
diff --git a/thirdparty/freetype/src/sfnt/ttcpal.c b/thirdparty/freetype/src/sfnt/ttcpal.c
new file mode 100644
index 0000000000..3482169a89
--- /dev/null
+++ b/thirdparty/freetype/src/sfnt/ttcpal.c
@@ -0,0 +1,311 @@
+/****************************************************************************
+ *
+ * ttcpal.c
+ *
+ *   TrueType and OpenType color palette support (body).
+ *
+ * Copyright (C) 2018-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Originally written by Shao Yu Zhang <shaozhang@fb.com>.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * `CPAL' table specification:
+   *
+   *   https://www.microsoft.com/typography/otspec/cpal.htm
+   *
+   */
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_TRUETYPE_TAGS_H
+#include FT_COLOR_H
+
+
+#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
+
+#include "ttcpal.h"
+
+
+  /* NOTE: These are the table sizes calculated through the specs. */
+#define CPAL_V0_HEADER_BASE_SIZE  12
+#define COLOR_SIZE                 4
+
+
+  /* all data from `CPAL' not covered in FT_Palette_Data */
+  typedef struct Cpal_
+  {
+    FT_UShort  version;        /* Table version number (0 or 1 supported). */
+    FT_UShort  num_colors;               /* Total number of color records, */
+                                         /* combined for all palettes.     */
+    FT_Byte*  colors;                              /* RGBA array of colors */
+    FT_Byte*  color_indices; /* Index of each palette's first color record */
+                             /* in the combined color record array.        */
+
+    /* The memory which backs up the `CPAL' table. */
+    void*     table;
+    FT_ULong  table_size;
+
+  } Cpal;
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  ttcpal
+
+
+  FT_LOCAL_DEF( FT_Error )
+  tt_face_load_cpal( TT_Face    face,
+                     FT_Stream  stream )
+  {
+    FT_Error   error;
+    FT_Memory  memory = face->root.memory;
+
+    FT_Byte*  table = NULL;
+    FT_Byte*  p     = NULL;
+
+    Cpal*  cpal = NULL;
+
+    FT_ULong  colors_offset;
+    FT_ULong  table_size;
+
+
+    error = face->goto_table( face, TTAG_CPAL, stream, &table_size );
+    if ( error )
+      goto NoCpal;
+
+    if ( table_size < CPAL_V0_HEADER_BASE_SIZE )
+      goto InvalidTable;
+
+    if ( FT_FRAME_EXTRACT( table_size, table ) )
+      goto NoCpal;
+
+    p = table;
+
+    if ( FT_NEW( cpal ) )
+      goto NoCpal;
+
+    cpal->version = FT_NEXT_USHORT( p );
+    if ( cpal->version > 1 )
+      goto InvalidTable;
+
+    face->palette_data.num_palette_entries = FT_NEXT_USHORT( p );
+    face->palette_data.num_palettes        = FT_NEXT_USHORT( p );
+
+    cpal->num_colors = FT_NEXT_USHORT( p );
+    colors_offset    = FT_NEXT_ULONG( p );
+
+    if ( CPAL_V0_HEADER_BASE_SIZE             +
+         face->palette_data.num_palettes * 2U > table_size )
+      goto InvalidTable;
+
+    if ( colors_offset >= table_size )
+      goto InvalidTable;
+    if ( cpal->num_colors * COLOR_SIZE > table_size - colors_offset )
+      goto InvalidTable;
+
+    if ( face->palette_data.num_palette_entries > cpal->num_colors )
+      goto InvalidTable;
+
+    cpal->color_indices = p;
+    cpal->colors        = (FT_Byte*)( table + colors_offset );
+
+    if ( cpal->version == 1 )
+    {
+      FT_ULong    type_offset, label_offset, entry_label_offset;
+      FT_UShort*  array = NULL;
+      FT_UShort*  limit;
+      FT_UShort*  q;
+
+
+      if ( CPAL_V0_HEADER_BASE_SIZE             +
+           face->palette_data.num_palettes * 2U +
+           3U * 4                               > table_size )
+        goto InvalidTable;
+
+      p += face->palette_data.num_palettes * 2;
+
+      type_offset        = FT_NEXT_ULONG( p );
+      label_offset       = FT_NEXT_ULONG( p );
+      entry_label_offset = FT_NEXT_ULONG( p );
+
+      if ( type_offset )
+      {
+        if ( type_offset >= table_size )
+          goto InvalidTable;
+        if ( face->palette_data.num_palettes * 2 >
+               table_size - type_offset )
+          goto InvalidTable;
+
+        if ( FT_QNEW_ARRAY( array, face->palette_data.num_palettes ) )
+          goto NoCpal;
+
+        p     = table + type_offset;
+        q     = array;
+        limit = q + face->palette_data.num_palettes;
+
+        while ( q < limit )
+          *q++ = FT_NEXT_USHORT( p );
+
+        face->palette_data.palette_flags = array;
+      }
+
+      if ( label_offset )
+      {
+        if ( label_offset >= table_size )
+          goto InvalidTable;
+        if ( face->palette_data.num_palettes * 2 >
+               table_size - label_offset )
+          goto InvalidTable;
+
+        if ( FT_QNEW_ARRAY( array, face->palette_data.num_palettes ) )
+          goto NoCpal;
+
+        p     = table + label_offset;
+        q     = array;
+        limit = q + face->palette_data.num_palettes;
+
+        while ( q < limit )
+          *q++ = FT_NEXT_USHORT( p );
+
+        face->palette_data.palette_name_ids = array;
+      }
+
+      if ( entry_label_offset )
+      {
+        if ( entry_label_offset >= table_size )
+          goto InvalidTable;
+        if ( face->palette_data.num_palette_entries * 2 >
+               table_size - entry_label_offset )
+          goto InvalidTable;
+
+        if ( FT_QNEW_ARRAY( array, face->palette_data.num_palette_entries ) )
+          goto NoCpal;
+
+        p     = table + entry_label_offset;
+        q     = array;
+        limit = q + face->palette_data.num_palette_entries;
+
+        while ( q < limit )
+          *q++ = FT_NEXT_USHORT( p );
+
+        face->palette_data.palette_entry_name_ids = array;
+      }
+    }
+
+    cpal->table      = table;
+    cpal->table_size = table_size;
+
+    face->cpal = cpal;
+
+    /* set up default palette */
+    if ( FT_NEW_ARRAY( face->palette,
+                       face->palette_data.num_palette_entries ) )
+      goto NoCpal;
+
+    if ( tt_face_palette_set( face, 0 ) )
+      goto InvalidTable;
+
+    return FT_Err_Ok;
+
+  InvalidTable:
+    error = FT_THROW( Invalid_Table );
+
+  NoCpal:
+    FT_FRAME_RELEASE( table );
+    FT_FREE( cpal );
+
+    face->cpal = NULL;
+
+    /* arrays in `face->palette_data' and `face->palette' */
+    /* are freed in `sfnt_done_face'                      */
+
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  tt_face_free_cpal( TT_Face  face )
+  {
+    FT_Stream  stream = face->root.stream;
+    FT_Memory  memory = face->root.memory;
+
+    Cpal*  cpal = (Cpal*)face->cpal;
+
+
+    if ( cpal )
+    {
+      FT_FRAME_RELEASE( cpal->table );
+      FT_FREE( cpal );
+    }
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  tt_face_palette_set( TT_Face  face,
+                       FT_UInt  palette_index )
+  {
+    Cpal*  cpal = (Cpal*)face->cpal;
+
+    FT_Byte*   offset;
+    FT_Byte*   p;
+
+    FT_Color*  q;
+    FT_Color*  limit;
+
+    FT_UShort  color_index;
+
+
+    if ( !cpal || palette_index >= face->palette_data.num_palettes )
+      return FT_THROW( Invalid_Argument );
+
+    offset      = cpal->color_indices + 2 * palette_index;
+    color_index = FT_PEEK_USHORT( offset );
+
+    if ( color_index + face->palette_data.num_palette_entries >
+           cpal->num_colors )
+      return FT_THROW( Invalid_Table );
+
+    p     = cpal->colors + COLOR_SIZE * color_index;
+    q     = face->palette;
+    limit = q + face->palette_data.num_palette_entries;
+
+    while ( q < limit )
+    {
+      q->blue  = FT_NEXT_BYTE( p );
+      q->green = FT_NEXT_BYTE( p );
+      q->red   = FT_NEXT_BYTE( p );
+      q->alpha = FT_NEXT_BYTE( p );
+
+      q++;
+    }
+
+    return FT_Err_Ok;
+  }
+
+
+#else /* !TT_CONFIG_OPTION_COLOR_LAYERS */
+
+  /* ANSI C doesn't like empty source files */
+  typedef int  _tt_cpal_dummy;
+
+#endif /* !TT_CONFIG_OPTION_COLOR_LAYERS */
+
+/* EOF */
diff --git a/thirdparty/freetype/src/sfnt/ttcpal.h b/thirdparty/freetype/src/sfnt/ttcpal.h
new file mode 100644
index 0000000000..d1b244f3e3
--- /dev/null
+++ b/thirdparty/freetype/src/sfnt/ttcpal.h
@@ -0,0 +1,49 @@
+/****************************************************************************
+ *
+ * ttcpal.h
+ *
+ *   TrueType and OpenType color palette support (specification).
+ *
+ * Copyright (C) 2018-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Originally written by Shao Yu Zhang <shaozhang@fb.com>.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef __TTCPAL_H__
+#define __TTCPAL_H__
+
+
+#include <ft2build.h>
+#include "ttload.h"
+
+
+FT_BEGIN_HEADER
+
+
+  FT_LOCAL( FT_Error )
+  tt_face_load_cpal( TT_Face    face,
+                     FT_Stream  stream );
+
+  FT_LOCAL( void )
+  tt_face_free_cpal( TT_Face  face );
+
+  FT_LOCAL( FT_Error )
+  tt_face_palette_set( TT_Face  face,
+                       FT_UInt  palette_index );
+
+
+FT_END_HEADER
+
+
+#endif /* __TTCPAL_H__ */
+
+/* END */
diff --git a/thirdparty/freetype/src/sfnt/ttkern.c b/thirdparty/freetype/src/sfnt/ttkern.c
index 68f15a2010..8d1b781090 100644
--- a/thirdparty/freetype/src/sfnt/ttkern.c
+++ b/thirdparty/freetype/src/sfnt/ttkern.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttkern.c                                                               */
-/*                                                                         */
-/*    Load the basic TrueType kerning table.  This doesn't handle          */
-/*    kerning data within the GPOS table at the moment.                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttkern.c
+ *
+ *   Load the basic TrueType kerning table.  This doesn't handle
+ *   kerning data within the GPOS table at the moment.
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,14 +26,14 @@
 #include "sferrors.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttkern
+#define FT_COMPONENT  ttkern
 
 
 #undef  TT_KERN_INDEX
@@ -127,8 +127,8 @@
       avail |= mask;
 
       /*
-       *  Now check whether the pairs in this table are ordered.
-       *  We then can use binary search.
+       * Now check whether the pairs in this table are ordered.
+       * We then can use binary search.
        */
       if ( num_pairs > 0 )
       {
@@ -283,8 +283,8 @@
         break;
 
        /*
-        *  We don't support format 2 because we haven't seen a single font
-        *  using it in real life...
+        * We don't support format 2 because we haven't seen a single font
+        * using it in real life...
         */
 
       default:
diff --git a/thirdparty/freetype/src/sfnt/ttkern.h b/thirdparty/freetype/src/sfnt/ttkern.h
index 4e45d0964b..5f283e5e62 100644
--- a/thirdparty/freetype/src/sfnt/ttkern.h
+++ b/thirdparty/freetype/src/sfnt/ttkern.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttkern.h                                                               */
-/*                                                                         */
-/*    Load the basic TrueType kerning table.  This doesn't handle          */
-/*    kerning data within the GPOS table at the moment.                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttkern.h
+ *
+ *   Load the basic TrueType kerning table.  This doesn't handle
+ *   kerning data within the GPOS table at the moment.
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTKERN_H_
diff --git a/thirdparty/freetype/src/sfnt/ttload.c b/thirdparty/freetype/src/sfnt/ttload.c
index a86a546c3d..5443bf4b69 100644
--- a/thirdparty/freetype/src/sfnt/ttload.c
+++ b/thirdparty/freetype/src/sfnt/ttload.c
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttload.c                                                               */
-/*                                                                         */
-/*    Load the basic TrueType tables, i.e., tables that can be either in   */
-/*    TTF or OTF fonts (body).                                             */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttload.c
+ *
+ *   Load the basic TrueType tables, i.e., tables that can be either in
+ *   TTF or OTF fonts (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,32 +26,34 @@
 #include "sferrors.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttload
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_lookup_table                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Looks for a TrueType table by name.                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A face object handle.                                      */
-  /*                                                                       */
-  /*    tag  :: The searched tag.                                          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A pointer to the table directory entry.  0 if not found.           */
-  /*                                                                       */
+#define FT_COMPONENT  ttload
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_lookup_table
+   *
+   * @Description:
+   *   Looks for a TrueType table by name.
+   *
+   * @Input:
+   *   face ::
+   *     A face object handle.
+   *
+   *   tag ::
+   *     The searched tag.
+   *
+   * @Return:
+   *   A pointer to the table directory entry.  0 if not found.
+   */
   FT_LOCAL_DEF( TT_Table  )
   tt_face_lookup_table( TT_Face   face,
                         FT_ULong  tag  )
@@ -101,27 +103,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_goto_table                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Looks for a TrueType table by name, then seek a stream to it.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A face object handle.                                    */
-  /*                                                                       */
-  /*    tag    :: The searched tag.                                        */
-  /*                                                                       */
-  /*    stream :: The stream to seek when the table is found.              */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    length :: The length of the table if found, undefined otherwise.   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_goto_table
+   *
+   * @Description:
+   *   Looks for a TrueType table by name, then seek a stream to it.
+   *
+   * @Input:
+   *   face ::
+   *     A face object handle.
+   *
+   *   tag ::
+   *     The searched tag.
+   *
+   *   stream ::
+   *     The stream to seek when the table is found.
+   *
+   * @Output:
+   *   length ::
+   *     The length of the table if found, undefined otherwise.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_goto_table( TT_Face    face,
                       FT_ULong   tag,
@@ -309,28 +315,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_font_dir                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the header of a SFNT font file.                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: A handle to the target face object.                  */
-  /*                                                                       */
-  /*    stream     :: The input stream.                                    */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    sfnt       :: The SFNT header.                                     */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The stream cursor must be at the beginning of the font directory.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_font_dir
+   *
+   * @Description:
+   *   Loads the header of a SFNT font file.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @Output:
+   *   sfnt ::
+   *     The SFNT header.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   * @Note:
+   *   The stream cursor must be at the beginning of the font directory.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_font_dir( TT_Face    face,
                          FT_Stream  stream )
@@ -496,46 +505,51 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_any                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads any font table into client memory.                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: The face object to look for.                             */
-  /*                                                                       */
-  /*    tag    :: The tag of table to load.  Use the value 0 if you want   */
-  /*              to access the whole font file, else set this parameter   */
-  /*              to a valid TrueType table tag that you can forge with    */
-  /*              the MAKE_TT_TAG macro.                                   */
-  /*                                                                       */
-  /*    offset :: The starting offset in the table (or the file if         */
-  /*              tag == 0).                                               */
-  /*                                                                       */
-  /*    length :: The address of the decision variable:                    */
-  /*                                                                       */
-  /*                If length == NULL:                                     */
-  /*                  Loads the whole table.  Returns an error if          */
-  /*                  `offset' == 0!                                       */
-  /*                                                                       */
-  /*                If *length == 0:                                       */
-  /*                  Exits immediately; returning the length of the given */
-  /*                  table or of the font file, depending on the value of */
-  /*                  `tag'.                                               */
-  /*                                                                       */
-  /*                If *length != 0:                                       */
-  /*                  Loads the next `length' bytes of table or font,      */
-  /*                  starting at offset `offset' (in table or font too).  */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    buffer :: The address of target buffer.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_any
+   *
+   * @Description:
+   *   Loads any font table into client memory.
+   *
+   * @Input:
+   *   face ::
+   *     The face object to look for.
+   *
+   *   tag ::
+   *     The tag of table to load.  Use the value 0 if you want
+   *     to access the whole font file, else set this parameter
+   *     to a valid TrueType table tag that you can forge with
+   *     the MAKE_TT_TAG macro.
+   *
+   *   offset ::
+   *     The starting offset in the table (or the file if
+   *     tag == 0).
+   *
+   *   length ::
+   *     The address of the decision variable:
+   *
+   *     If length == NULL:
+   *       Loads the whole table.  Returns an error if
+   *       `offset' == 0!
+   *
+   *     If *length == 0:
+   *       Exits immediately; returning the length of the given
+   *       table or of the font file, depending on the value of
+   *       `tag'.
+   *
+   *     If *length != 0:
+   *       Loads the next `length' bytes of table or font,
+   *       starting at offset `offset' (in table or font too).
+   *
+   * @Output:
+   *   buffer ::
+   *     The address of target buffer.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_any( TT_Face    face,
                     FT_ULong   tag,
@@ -586,22 +600,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_generic_header                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the TrueType table `head' or `bhed'.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_generic_header
+   *
+   * @Description:
+   *   Loads the TrueType table `head' or `bhed'.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   tt_face_load_generic_header( TT_Face    face,
                                FT_Stream  stream,
@@ -622,10 +638,10 @@
         FT_FRAME_LONG  ( Magic_Number ),
         FT_FRAME_USHORT( Flags ),
         FT_FRAME_USHORT( Units_Per_EM ),
-        FT_FRAME_LONG  ( Created[0] ),
-        FT_FRAME_LONG  ( Created[1] ),
-        FT_FRAME_LONG  ( Modified[0] ),
-        FT_FRAME_LONG  ( Modified[1] ),
+        FT_FRAME_ULONG ( Created[0] ),
+        FT_FRAME_ULONG ( Created[1] ),
+        FT_FRAME_ULONG ( Modified[0] ),
+        FT_FRAME_ULONG ( Modified[1] ),
         FT_FRAME_SHORT ( xMin ),
         FT_FRAME_SHORT ( yMin ),
         FT_FRAME_SHORT ( xMax ),
@@ -676,22 +692,24 @@
 #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_maxp                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the maximum profile into a face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_maxp
+   *
+   * @Description:
+   *   Loads the maximum profile into a face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_maxp( TT_Face    face,
                      FT_Stream  stream )
@@ -784,22 +802,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_name                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the name records.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_name
+   *
+   * @Description:
+   *   Loads the name records.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_name( TT_Face    face,
                      FT_Stream  stream )
@@ -981,17 +1001,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_free_name                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Frees the name records.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the target face object.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_free_name
+   *
+   * @Description:
+   *   Frees the name records.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   */
   FT_LOCAL_DEF( void )
   tt_face_free_name( TT_Face  face )
   {
@@ -1030,23 +1051,25 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_cmap                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the cmap directory in a face object.  The cmaps themselves   */
-  /*    are loaded on demand in the `ttcmap.c' module.                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_cmap
+   *
+   * @Description:
+   *   Loads the cmap directory in a face object.  The cmaps themselves
+   *   are loaded on demand in the `ttcmap.c' module.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
 
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_cmap( TT_Face    face,
@@ -1068,22 +1091,24 @@
 
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_os2                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the OS2 table.                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_os2
+   *
+   * @Description:
+   *   Loads the OS2 table.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_os2( TT_Face    face,
                     FT_Stream  stream )
@@ -1228,22 +1253,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_postscript                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the Postscript table.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_postscript
+   *
+   * @Description:
+   *   Loads the Postscript table.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_post( TT_Face    face,
                      FT_Stream  stream )
@@ -1288,22 +1315,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_pclt                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the PCL 5 Table.                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_pclt
+   *
+   * @Description:
+   *   Loads the PCL 5 Table.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_pclt( TT_Face    face,
                      FT_Stream  stream )
@@ -1349,22 +1378,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_gasp                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads the `gasp' table into a face object.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_gasp
+   *
+   * @Description:
+   *   Loads the `gasp' table into a face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_gasp( TT_Face    face,
                      FT_Stream  stream )
diff --git a/thirdparty/freetype/src/sfnt/ttload.h b/thirdparty/freetype/src/sfnt/ttload.h
index f94be8b7bd..cc18c18694 100644
--- a/thirdparty/freetype/src/sfnt/ttload.h
+++ b/thirdparty/freetype/src/sfnt/ttload.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttload.h                                                               */
-/*                                                                         */
-/*    Load the basic TrueType tables, i.e., tables that can be either in   */
-/*    TTF or OTF fonts (specification).                                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttload.h
+ *
+ *   Load the basic TrueType tables, i.e., tables that can be either in
+ *   TTF or OTF fonts (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTLOAD_H_
diff --git a/thirdparty/freetype/src/sfnt/ttmtx.c b/thirdparty/freetype/src/sfnt/ttmtx.c
index 6ddda95b56..7a4d2be2cb 100644
--- a/thirdparty/freetype/src/sfnt/ttmtx.c
+++ b/thirdparty/freetype/src/sfnt/ttmtx.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttmtx.c                                                                */
-/*                                                                         */
-/*    Load the metrics tables common to TTF and OTF fonts (body).          */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttmtx.c
+ *
+ *   Load the metrics tables common to TTF and OTF fonts (body).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -38,34 +38,37 @@
   /*            both the horizontal and vertical headers.               */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttmtx
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_hmtx                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the `hmtx' or `vmtx' table into a face object.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the target face object.                    */
-  /*                                                                       */
-  /*    stream   :: The input stream.                                      */
-  /*                                                                       */
-  /*    vertical :: A boolean flag.  If set, load `vmtx'.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+#define FT_COMPONENT  ttmtx
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_hmtx
+   *
+   * @Description:
+   *   Load the `hmtx' or `vmtx' table into a face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   *   vertical ::
+   *     A boolean flag.  If set, load `vmtx'.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_hmtx( TT_Face    face,
                      FT_Stream  stream,
@@ -102,24 +105,27 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_hhea                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the `hhea' or 'vhea' table into a face object.                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A handle to the target face object.                    */
-  /*                                                                       */
-  /*    stream   :: The input stream.                                      */
-  /*                                                                       */
-  /*    vertical :: A boolean flag.  If set, load `vhea'.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_hhea
+   *
+   * @Description:
+   *   Load the `hhea' or 'vhea' table into a face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     The input stream.
+   *
+   *   vertical ::
+   *     A boolean flag.  If set, load `vhea'.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_hhea( TT_Face    face,
                      FT_Stream  stream,
@@ -190,30 +196,35 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_get_metrics                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return the horizontal or vertical metrics in font units for a      */
-  /*    given glyph.  The values are the left side bearing (top side       */
-  /*    bearing for vertical metrics) and advance width (advance height    */
-  /*    for vertical metrics).                                             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face     :: A pointer to the TrueType face structure.              */
-  /*                                                                       */
-  /*    vertical :: If set to TRUE, get vertical metrics.                  */
-  /*                                                                       */
-  /*    gindex   :: The glyph index.                                       */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    abearing :: The bearing, either left side or top side.             */
-  /*                                                                       */
-  /*    aadvance :: The advance width or advance height, depending on      */
-  /*                the `vertical' flag.                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_get_metrics
+   *
+   * @Description:
+   *   Return the horizontal or vertical metrics in font units for a
+   *   given glyph.  The values are the left side bearing (top side
+   *   bearing for vertical metrics) and advance width (advance height
+   *   for vertical metrics).
+   *
+   * @Input:
+   *   face ::
+   *     A pointer to the TrueType face structure.
+   *
+   *   vertical ::
+   *     If set to TRUE, get vertical metrics.
+   *
+   *   gindex ::
+   *     The glyph index.
+   *
+   * @Output:
+   *   abearing ::
+   *     The bearing, either left side or top side.
+   *
+   *   aadvance ::
+   *     The advance width or advance height, depending on
+   *     the `vertical' flag.
+   */
   FT_LOCAL_DEF( void )
   tt_face_get_metrics( TT_Face     face,
                        FT_Bool     vertical,
diff --git a/thirdparty/freetype/src/sfnt/ttmtx.h b/thirdparty/freetype/src/sfnt/ttmtx.h
index ab00acd795..5b0b60b641 100644
--- a/thirdparty/freetype/src/sfnt/ttmtx.h
+++ b/thirdparty/freetype/src/sfnt/ttmtx.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttmtx.h                                                                */
-/*                                                                         */
-/*    Load the metrics tables common to TTF and OTF fonts (specification). */
-/*                                                                         */
-/*  Copyright 2006-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttmtx.h
+ *
+ *   Load the metrics tables common to TTF and OTF fonts (specification).
+ *
+ * Copyright (C) 2006-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTMTX_H_
diff --git a/thirdparty/freetype/src/sfnt/ttpost.c b/thirdparty/freetype/src/sfnt/ttpost.c
index 6de99ef977..636a0a004a 100644
--- a/thirdparty/freetype/src/sfnt/ttpost.c
+++ b/thirdparty/freetype/src/sfnt/ttpost.c
@@ -1,28 +1,28 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttpost.c                                                               */
-/*                                                                         */
-/*    PostScript name table processing for TrueType and OpenType fonts     */
-/*    (body).                                                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The post table is not completely loaded by the core engine.  This     */
-  /* file loads the missing PS glyph names and implements an API to access */
-  /* them.                                                                 */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ttpost.c
+ *
+ *   PostScript name table processing for TrueType and OpenType fonts
+ *   (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * The post table is not completely loaded by the core engine.  This
+   * file loads the missing PS glyph names and implements an API to access
+   * them.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -38,17 +38,17 @@
 #include "sferrors.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttpost
+#define FT_COMPONENT  ttpost
 
 
-  /* If this configuration macro is defined, we rely on the `PSNames' */
+  /* If this configuration macro is defined, we rely on the `psnames' */
   /* module to grab the glyph names.                                  */
 
 #ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES
@@ -62,9 +62,9 @@
 #else /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */
 
 
-   /* Otherwise, we ignore the `PSNames' module, and provide our own  */
+   /* Otherwise, we ignore the `psnames' module, and provide our own  */
    /* table of Mac names.  Thus, it is possible to build a version of */
-   /* FreeType without the Type 1 driver & PSNames module.            */
+   /* FreeType without the Type 1 driver & psnames module.            */
 
 #define MAC_NAME( x )  (FT_String*)tt_post_default_names[x]
 
@@ -459,28 +459,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_get_ps_name                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the PostScript glyph name of a glyph.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the parent face.                             */
-  /*                                                                       */
-  /*    idx    :: The glyph index.                                         */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    PSname :: The address of a string pointer.  Undefined in case of   */
-  /*              error, otherwise it is a pointer to the glyph name.      */
-  /*                                                                       */
-  /*              You must not modify the returned string!                 */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_get_ps_name
+   *
+   * @Description:
+   *   Get the PostScript glyph name of a glyph.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the parent face.
+   *
+   *   idx ::
+   *     The glyph index.
+   *
+   * @InOut:
+   *   PSname ::
+   *     The address of a string pointer.  Undefined in case of
+   *     error, otherwise it is a pointer to the glyph name.
+   *
+   *     You must not modify the returned string!
+   *
+   * @Output:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_get_ps_name( TT_Face      face,
                        FT_UInt      idx,
diff --git a/thirdparty/freetype/src/sfnt/ttpost.h b/thirdparty/freetype/src/sfnt/ttpost.h
index 3bec07e445..812a0fc92d 100644
--- a/thirdparty/freetype/src/sfnt/ttpost.h
+++ b/thirdparty/freetype/src/sfnt/ttpost.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttpost.h                                                               */
-/*                                                                         */
-/*    PostScript name table processing for TrueType and OpenType fonts     */
-/*    (specification).                                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttpost.h
+ *
+ *   PostScript name table processing for TrueType and OpenType fonts
+ *   (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTPOST_H_
diff --git a/thirdparty/freetype/src/sfnt/ttsbit.c b/thirdparty/freetype/src/sfnt/ttsbit.c
index 33b8640bc3..23bd9d7eb0 100644
--- a/thirdparty/freetype/src/sfnt/ttsbit.c
+++ b/thirdparty/freetype/src/sfnt/ttsbit.c
@@ -1,22 +1,22 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttsbit.c                                                               */
-/*                                                                         */
-/*    TrueType and OpenType embedded bitmap support (body).                */
-/*                                                                         */
-/*  Copyright 2005-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  Copyright 2013 by Google, Inc.                                         */
-/*  Google Author(s): Behdad Esfahbod.                                     */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttsbit.c
+ *
+ *   TrueType and OpenType embedded bitmap support (body).
+ *
+ * Copyright (C) 2005-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Copyright 2013 by Google, Inc.
+ * Google Author(s): Behdad Esfahbod.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -36,14 +36,14 @@
 #include "pngshim.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttsbit
+#define FT_COMPONENT  ttsbit
 
 
   FT_LOCAL_DEF( FT_Error )
@@ -129,8 +129,8 @@
         }
 
         /*
-         *  Count the number of strikes available in the table.  We are a bit
-         *  paranoid there and don't trust the data.
+         * Count the number of strikes available in the table.  We are a bit
+         * paranoid there and don't trust the data.
          */
         count = (FT_UInt)num_strikes;
         if ( 8 + 48UL * count > table_size )
@@ -182,8 +182,8 @@
                       " expect bad rendering results\n" ));
 
         /*
-         *  Count the number of strikes available in the table.  We are a bit
-         *  paranoid there and don't trust the data.
+         * Count the number of strikes available in the table.  We are a bit
+         * paranoid there and don't trust the data.
          */
         count = (FT_UInt)num_strikes;
         if ( 8 + 4UL * count > table_size )
@@ -1014,8 +1014,8 @@
     for ( nn = 0; nn < num_components; nn++ )
     {
       FT_UInt  gindex = FT_NEXT_USHORT( p );
-      FT_Byte  dx     = FT_NEXT_BYTE( p );
-      FT_Byte  dy     = FT_NEXT_BYTE( p );
+      FT_Char  dx     = FT_NEXT_CHAR( p );
+      FT_Char  dy     = FT_NEXT_CHAR( p );
 
 
       /* NB: a recursive call */
diff --git a/thirdparty/freetype/src/sfnt/ttsbit.h b/thirdparty/freetype/src/sfnt/ttsbit.h
index ce2af3c162..5ab8ff5568 100644
--- a/thirdparty/freetype/src/sfnt/ttsbit.h
+++ b/thirdparty/freetype/src/sfnt/ttsbit.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttsbit.h                                                               */
-/*                                                                         */
-/*    TrueType and OpenType embedded bitmap support (specification).       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttsbit.h
+ *
+ *   TrueType and OpenType embedded bitmap support (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTSBIT_H_
diff --git a/thirdparty/freetype/src/smooth/ftgrays.c b/thirdparty/freetype/src/smooth/ftgrays.c
index 803a19e415..91293ac946 100644
--- a/thirdparty/freetype/src/smooth/ftgrays.c
+++ b/thirdparty/freetype/src/smooth/ftgrays.c
@@ -1,94 +1,94 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgrays.c                                                              */
-/*                                                                         */
-/*    A new `perfect' anti-aliasing renderer (body).                       */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file can be compiled without the rest of the FreeType engine, by */
-  /* defining the STANDALONE_ macro when compiling it.  You also need to   */
-  /* put the files `ftgrays.h' and `ftimage.h' into the current            */
-  /* compilation directory.  Typically, you could do something like        */
-  /*                                                                       */
-  /* - copy `src/smooth/ftgrays.c' (this file) to your current directory   */
-  /*                                                                       */
-  /* - copy `include/freetype/ftimage.h' and `src/smooth/ftgrays.h' to the */
-  /*   same directory                                                      */
-  /*                                                                       */
-  /* - compile `ftgrays' with the STANDALONE_ macro defined, as in         */
-  /*                                                                       */
-  /*     cc -c -DSTANDALONE_ ftgrays.c                                     */
-  /*                                                                       */
-  /* The renderer can be initialized with a call to                        */
-  /* `ft_gray_raster.raster_new'; an anti-aliased bitmap can be generated  */
-  /* with a call to `ft_gray_raster.raster_render'.                        */
-  /*                                                                       */
-  /* See the comments and documentation in the file `ftimage.h' for more   */
-  /* details on how the raster works.                                      */
-  /*                                                                       */
-  /*************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This is a new anti-aliasing scan-converter for FreeType 2.  The       */
-  /* algorithm used here is _very_ different from the one in the standard  */
-  /* `ftraster' module.  Actually, `ftgrays' computes the _exact_          */
-  /* coverage of the outline on each pixel cell.                           */
-  /*                                                                       */
-  /* It is based on ideas that I initially found in Raph Levien's          */
-  /* excellent LibArt graphics library (see http://www.levien.com/libart   */
-  /* for more information, though the web pages do not tell anything       */
-  /* about the renderer; you'll have to dive into the source code to       */
-  /* understand how it works).                                             */
-  /*                                                                       */
-  /* Note, however, that this is a _very_ different implementation         */
-  /* compared to Raph's.  Coverage information is stored in a very         */
-  /* different way, and I don't use sorted vector paths.  Also, it doesn't */
-  /* use floating point values.                                            */
-  /*                                                                       */
-  /* This renderer has the following advantages:                           */
-  /*                                                                       */
-  /* - It doesn't need an intermediate bitmap.  Instead, one can supply a  */
-  /*   callback function that will be called by the renderer to draw gray  */
-  /*   spans on any target surface.  You can thus do direct composition on */
-  /*   any kind of bitmap, provided that you give the renderer the right   */
-  /*   callback.                                                           */
-  /*                                                                       */
-  /* - A perfect anti-aliaser, i.e., it computes the _exact_ coverage on   */
-  /*   each pixel cell.                                                    */
-  /*                                                                       */
-  /* - It performs a single pass on the outline (the `standard' FT2        */
-  /*   renderer makes two passes).                                         */
-  /*                                                                       */
-  /* - It can easily be modified to render to _any_ number of gray levels  */
-  /*   cheaply.                                                            */
-  /*                                                                       */
-  /* - For small (< 20) pixel sizes, it is faster than the standard        */
-  /*   renderer.                                                           */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+/****************************************************************************
+ *
+ * ftgrays.c
+ *
+ *   A new `perfect' anti-aliasing renderer (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+  /**************************************************************************
+   *
+   * This file can be compiled without the rest of the FreeType engine, by
+   * defining the STANDALONE_ macro when compiling it.  You also need to
+   * put the files `ftgrays.h' and `ftimage.h' into the current
+   * compilation directory.  Typically, you could do something like
+   *
+   * - copy `src/smooth/ftgrays.c' (this file) to your current directory
+   *
+   * - copy `include/freetype/ftimage.h' and `src/smooth/ftgrays.h' to the
+   *   same directory
+   *
+   * - compile `ftgrays' with the STANDALONE_ macro defined, as in
+   *
+   *     cc -c -DSTANDALONE_ ftgrays.c
+   *
+   * The renderer can be initialized with a call to
+   * `ft_gray_raster.raster_new'; an anti-aliased bitmap can be generated
+   * with a call to `ft_gray_raster.raster_render'.
+   *
+   * See the comments and documentation in the file `ftimage.h' for more
+   * details on how the raster works.
+   *
+   */
+
+  /**************************************************************************
+   *
+   * This is a new anti-aliasing scan-converter for FreeType 2.  The
+   * algorithm used here is _very_ different from the one in the standard
+   * `ftraster' module.  Actually, `ftgrays' computes the _exact_
+   * coverage of the outline on each pixel cell.
+   *
+   * It is based on ideas that I initially found in Raph Levien's
+   * excellent LibArt graphics library (see https://www.levien.com/libart
+   * for more information, though the web pages do not tell anything
+   * about the renderer; you'll have to dive into the source code to
+   * understand how it works).
+   *
+   * Note, however, that this is a _very_ different implementation
+   * compared to Raph's.  Coverage information is stored in a very
+   * different way, and I don't use sorted vector paths.  Also, it doesn't
+   * use floating point values.
+   *
+   * This renderer has the following advantages:
+   *
+   * - It doesn't need an intermediate bitmap.  Instead, one can supply a
+   *   callback function that will be called by the renderer to draw gray
+   *   spans on any target surface.  You can thus do direct composition on
+   *   any kind of bitmap, provided that you give the renderer the right
+   *   callback.
+   *
+   * - A perfect anti-aliaser, i.e., it computes the _exact_ coverage on
+   *   each pixel cell.
+   *
+   * - It performs a single pass on the outline (the `standard' FT2
+   *   renderer makes two passes).
+   *
+   * - It can easily be modified to render to _any_ number of gray levels
+   *   cheaply.
+   *
+   * - For small (< 20) pixel sizes, it is faster than the standard
+   *   renderer.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_smooth
+#define FT_COMPONENT  smooth
 
 
 #ifdef STANDALONE_
@@ -112,9 +112,9 @@
 
 
   /*
-   *  Approximate sqrt(x*x+y*y) using the `alpha max plus beta min'
-   *  algorithm.  We use alpha = 1, beta = 3/8, giving us results with a
-   *  largest error less than 7% compared to the exact value.
+   * Approximate sqrt(x*x+y*y) using the `alpha max plus beta min'
+   * algorithm.  We use alpha = 1, beta = 3/8, giving us results with a
+   * largest error less than 7% compared to the exact value.
    */
 #define FT_HYPOT( x, y )                 \
           ( x = FT_ABS( x ),             \
@@ -222,10 +222,10 @@ typedef ptrdiff_t  FT_PtrDist;
 #endif
 
 #define FT_THROW( e )                               \
-          ( FT_Throw( FT_ERR_CAT( ErrRaster, e ),   \
+          ( FT_Throw( FT_ERR_CAT( ErrRaster_, e ),  \
                       __LINE__,                     \
                       __FILE__ )                  | \
-            FT_ERR_CAT( ErrRaster, e )            )
+            FT_ERR_CAT( ErrRaster_, e )           )
 
 #else /* !FT_DEBUG_LEVEL_TRACE */
 
@@ -279,8 +279,6 @@ typedef ptrdiff_t  FT_PtrDist;
 
 #include "ftsmerrs.h"
 
-#include "ftspic.h"
-
 #define Smooth_Err_Invalid_Mode     Smooth_Err_Cannot_Render_Glyph
 #define Smooth_Err_Memory_Overflow  Smooth_Err_Out_Of_Memory
 #define ErrRaster_Memory_Overflow   Smooth_Err_Out_Of_Memory
@@ -395,10 +393,10 @@ typedef ptrdiff_t  FT_PtrDist;
     ( sizeof( long ) * FT_CHAR_BIT - PIXEL_BITS ) )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*   TYPE DEFINITIONS                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TYPE DEFINITIONS
+   */
 
   /* don't change the following types to FT_Int or FT_Pos, since we might */
   /* need to define them to "float" or "double" when experimenting with   */
@@ -516,10 +514,10 @@ typedef ptrdiff_t  FT_PtrDist;
 #endif /* FT_DEBUG_LEVEL_TRACE */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Record the current cell in the table.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Record the current cell in the table.
+   */
   static void
   gray_record_cell( RAS_ARG )
   {
@@ -561,10 +559,10 @@ typedef ptrdiff_t  FT_PtrDist;
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Set the current cell to a new position.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Set the current cell to a new position.
+   */
   static void
   gray_set_cell( RAS_ARG_ TCoord  ex,
                           TCoord  ey )
@@ -598,10 +596,10 @@ typedef ptrdiff_t  FT_PtrDist;
 
 #ifndef FT_LONG64
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Render a scanline as one or more cells.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Render a scanline as one or more cells.
+   */
   static void
   gray_render_scanline( RAS_ARG_ TCoord  ey,
                                  TPos    x1,
@@ -696,10 +694,10 @@ typedef ptrdiff_t  FT_PtrDist;
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Render a given line as a series of scanlines.                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Render a given line as a series of scanlines.
+   */
   static void
   gray_render_line( RAS_ARG_ TPos  to_x,
                              TPos  to_y )
@@ -837,10 +835,10 @@ typedef ptrdiff_t  FT_PtrDist;
 
 #else
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Render a straight line across multiple cells in any direction.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Render a straight line across multiple cells in any direction.
+   */
   static void
   gray_render_line( RAS_ARG_ TPos  to_x,
                              TPos  to_y )
@@ -1330,40 +1328,43 @@ typedef ptrdiff_t  FT_PtrDist;
 
 #ifdef STANDALONE_
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  The following functions should only compile in stand-alone mode,     */
-  /*  i.e., when building this component without the rest of FreeType.     */
-  /*                                                                       */
-  /*************************************************************************/
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Decompose                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Walk over an outline's structure to decompose it into individual   */
-  /*    segments and Bézier arcs.  This function is also able to emit      */
-  /*    `move to' and `close to' operations to indicate the start and end  */
-  /*    of new contours in the outline.                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    outline        :: A pointer to the source target.                  */
-  /*                                                                       */
-  /*    func_interface :: A table of `emitters', i.e., function pointers   */
-  /*                      called during decomposition to indicate path     */
-  /*                      operations.                                      */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    user           :: A typeless pointer which is passed to each       */
-  /*                      emitter during the decomposition.  It can be     */
-  /*                      used to store the state during the               */
-  /*                      decomposition.                                   */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Error code.  0 means success.                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The following functions should only compile in stand-alone mode,
+   * i.e., when building this component without the rest of FreeType.
+   *
+   */
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   FT_Outline_Decompose
+   *
+   * @Description:
+   *   Walk over an outline's structure to decompose it into individual
+   *   segments and Bézier arcs.  This function is also able to emit
+   *   `move to' and `close to' operations to indicate the start and end
+   *   of new contours in the outline.
+   *
+   * @Input:
+   *   outline ::
+   *     A pointer to the source target.
+   *
+   *   func_interface ::
+   *     A table of `emitters', i.e., function pointers
+   *     called during decomposition to indicate path
+   *     operations.
+   *
+   * @InOut:
+   *   user ::
+   *     A typeless pointer which is passed to each
+   *     emitter during the decomposition.  It can be
+   *     used to store the state during the
+   *     decomposition.
+   *
+   * @Return:
+   *   Error code.  0 means success.
+   */
   static int
   FT_Outline_Decompose( const FT_Outline*        outline,
                         const FT_Outline_Funcs*  func_interface,
@@ -1610,81 +1611,6 @@ typedef ptrdiff_t  FT_PtrDist;
     return FT_THROW( Invalid_Outline );
   }
 
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    FT_Outline_Get_CBox                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Return an outline's `control box'.  The control box encloses all   */
-  /*    the outline's points, including Bézier control points.  Though it  */
-  /*    coincides with the exact bounding box for most glyphs, it can be   */
-  /*    slightly larger in some situations (like when rotating an outline  */
-  /*    that contains Bézier outside arcs).                                */
-  /*                                                                       */
-  /*    Computing the control box is very fast, while getting the bounding */
-  /*    box can take much more time as it needs to walk over all segments  */
-  /*    and arcs in the outline.  To get the latter, you can use the       */
-  /*    `ftbbox' component, which is dedicated to this single task.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    outline :: A pointer to the source outline descriptor.             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    acbox   :: The outline's control box.                              */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    See @FT_Glyph_Get_CBox for a discussion of tricky fonts.           */
-  /*                                                                       */
-
-  static void
-  FT_Outline_Get_CBox( const FT_Outline*  outline,
-                       FT_BBox           *acbox )
-  {
-    TPos  xMin, yMin, xMax, yMax;
-
-
-    if ( outline && acbox )
-    {
-      if ( outline->n_points == 0 )
-      {
-        xMin = 0;
-        yMin = 0;
-        xMax = 0;
-        yMax = 0;
-      }
-      else
-      {
-        FT_Vector*  vec   = outline->points;
-        FT_Vector*  limit = vec + outline->n_points;
-
-
-        xMin = xMax = vec->x;
-        yMin = yMax = vec->y;
-        vec++;
-
-        for ( ; vec < limit; vec++ )
-        {
-          TPos  x, y;
-
-
-          x = vec->x;
-          if ( x < xMin ) xMin = x;
-          if ( x > xMax ) xMax = x;
-
-          y = vec->y;
-          if ( y < yMin ) yMin = y;
-          if ( y > yMax ) yMax = y;
-        }
-      }
-      acbox->xMin = xMin;
-      acbox->xMax = xMax;
-      acbox->yMin = yMin;
-      acbox->yMax = yMax;
-    }
-  }
-
 #endif /* STANDALONE_ */
 
 
@@ -1702,19 +1628,20 @@ typedef ptrdiff_t  FT_PtrDist;
 
 
   static int
-  gray_convert_glyph_inner( RAS_ARG )
+  gray_convert_glyph_inner( RAS_ARG,
+                            int  continued )
   {
-
     volatile int  error = 0;
 
-#ifdef FT_CONFIG_OPTION_PIC
-      FT_Outline_Funcs func_interface;
-      Init_Class_func_interface(&func_interface);
-#endif
 
     if ( ft_setjmp( ras.jump_buffer ) == 0 )
     {
+      if ( continued )
+        FT_Trace_Disable();
       error = FT_Outline_Decompose( &ras.outline, &func_interface, &ras );
+      if ( continued )
+        FT_Trace_Enable();
+
       if ( !ras.invalid )
         gray_record_cell( RAS_VAR );
 
@@ -1741,8 +1668,6 @@ typedef ptrdiff_t  FT_PtrDist;
   {
     const TCoord  yMin = ras.min_ey;
     const TCoord  yMax = ras.max_ey;
-    const TCoord  xMin = ras.min_ex;
-    const TCoord  xMax = ras.max_ex;
 
     TCell    buffer[FT_MAX_GRAY_POOL];
     size_t   height = (size_t)( yMax - yMin );
@@ -1751,6 +1676,8 @@ typedef ptrdiff_t  FT_PtrDist;
     TCoord   bands[32];  /* enough to accommodate bisections */
     TCoord*  band;
 
+    int  continued = 0;
+
 
     /* set up vertical bands */
     if ( height > n )
@@ -1774,8 +1701,8 @@ typedef ptrdiff_t  FT_PtrDist;
       ras.max_ey = FT_MIN( y, yMax );
 
       band    = bands;
-      band[1] = xMin;
-      band[0] = xMax;
+      band[1] = ras.min_ey;
+      band[0] = ras.max_ey;
 
       do
       {
@@ -1787,10 +1714,11 @@ typedef ptrdiff_t  FT_PtrDist;
 
         ras.num_cells = 0;
         ras.invalid   = 1;
-        ras.min_ex    = band[1];
-        ras.max_ex    = band[0];
+        ras.min_ey    = band[1];
+        ras.max_ey    = band[0];
 
-        error = gray_convert_glyph_inner( RAS_VAR );
+        error     = gray_convert_glyph_inner( RAS_VAR, continued );
+        continued = 1;
 
         if ( !error )
         {
@@ -1827,7 +1755,7 @@ typedef ptrdiff_t  FT_PtrDist;
   {
     const FT_Outline*  outline    = (const FT_Outline*)params->source;
     const FT_Bitmap*   target_map = params->target;
-    FT_BBox            cbox, clip;
+    FT_BBox            clip;
 
 #ifndef FT_STATIC_RASTER
     gray_TWorker  worker[1];
@@ -1890,21 +1818,11 @@ typedef ptrdiff_t  FT_PtrDist;
       ras.render_span_data = NULL;
     }
 
-    FT_Outline_Get_CBox( outline, &cbox );
-
-    /* reject too large outline coordinates */
-    if ( cbox.xMin < -0x1000000L || cbox.xMax > 0x1000000L ||
-         cbox.yMin < -0x1000000L || cbox.yMax > 0x1000000L )
-      return FT_THROW( Invalid_Outline );
-
-    /* truncate the bounding box to integer pixels */
-    cbox.xMin = cbox.xMin >> 6;
-    cbox.yMin = cbox.yMin >> 6;
-    cbox.xMax = ( cbox.xMax + 63 ) >> 6;
-    cbox.yMax = ( cbox.yMax + 63 ) >> 6;
-
     /* compute clipping box */
-    if ( !( params->flags & FT_RASTER_FLAG_DIRECT ) )
+    if ( params->flags & FT_RASTER_FLAG_DIRECT &&
+         params->flags & FT_RASTER_FLAG_CLIP   )
+      clip = params->clip_box;
+    else
     {
       /* compute clip box from target pixmap */
       clip.xMin = 0;
@@ -1912,21 +1830,12 @@ typedef ptrdiff_t  FT_PtrDist;
       clip.xMax = (FT_Pos)target_map->width;
       clip.yMax = (FT_Pos)target_map->rows;
     }
-    else if ( params->flags & FT_RASTER_FLAG_CLIP )
-      clip = params->clip_box;
-    else
-    {
-      clip.xMin = -32768L;
-      clip.yMin = -32768L;
-      clip.xMax =  32767L;
-      clip.yMax =  32767L;
-    }
 
     /* clip to target bitmap, exit if nothing to do */
-    ras.min_ex = FT_MAX( cbox.xMin, clip.xMin );
-    ras.min_ey = FT_MAX( cbox.yMin, clip.yMin );
-    ras.max_ex = FT_MIN( cbox.xMax, clip.xMax );
-    ras.max_ey = FT_MIN( cbox.yMax, clip.yMax );
+    ras.min_ex = clip.xMin;
+    ras.min_ey = clip.yMin;
+    ras.max_ex = clip.xMax;
+    ras.max_ey = clip.yMax;
 
     if ( ras.max_ex <= ras.min_ex || ras.max_ey <= ras.min_ey )
       return 0;
diff --git a/thirdparty/freetype/src/smooth/ftgrays.h b/thirdparty/freetype/src/smooth/ftgrays.h
index 9e11ca675e..e9f9c7a4ad 100644
--- a/thirdparty/freetype/src/smooth/ftgrays.h
+++ b/thirdparty/freetype/src/smooth/ftgrays.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftgrays.h                                                              */
-/*                                                                         */
-/*    FreeType smooth renderer declaration                                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftgrays.h
+ *
+ *   FreeType smooth renderer declaration
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTGRAYS_H_
@@ -28,19 +28,18 @@
 #include "ftimage.h"
 #else
 #include <ft2build.h>
-#include FT_CONFIG_CONFIG_H /* for FT_CONFIG_OPTION_PIC */
 #include FT_IMAGE_H
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* To make ftgrays.h independent from configuration files we check       */
-  /* whether FT_EXPORT_VAR has been defined already.                       */
-  /*                                                                       */
-  /* On some systems and compilers (Win32 mostly), an extra keyword is     */
-  /* necessary to compile the library as a DLL.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * To make ftgrays.h independent from configuration files we check
+   * whether FT_EXPORT_VAR has been defined already.
+   *
+   * On some systems and compilers (Win32 mostly), an extra keyword is
+   * necessary to compile the library as a DLL.
+   */
 #ifndef FT_EXPORT_VAR
 #define FT_EXPORT_VAR( x )  extern  x
 #endif
diff --git a/thirdparty/freetype/src/smooth/ftsmerrs.h b/thirdparty/freetype/src/smooth/ftsmerrs.h
index 226dc1b001..d52c0dd9e2 100644
--- a/thirdparty/freetype/src/smooth/ftsmerrs.h
+++ b/thirdparty/freetype/src/smooth/ftsmerrs.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsmerrs.h                                                             */
-/*                                                                         */
-/*    smooth renderer error codes (specification only).                    */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the smooth renderer error enumeration     */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ftsmerrs.h
+ *
+ *   smooth renderer error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the smooth renderer error enumeration
+   * constants.
+   *
+   */
 
 #ifndef FTSMERRS_H_
 #define FTSMERRS_H_
diff --git a/thirdparty/freetype/src/smooth/ftsmooth.c b/thirdparty/freetype/src/smooth/ftsmooth.c
index ef176bdf1e..c8b6bb7518 100644
--- a/thirdparty/freetype/src/smooth/ftsmooth.c
+++ b/thirdparty/freetype/src/smooth/ftsmooth.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsmooth.c                                                             */
-/*                                                                         */
-/*    Anti-aliasing renderer interface (body).                             */
-/*                                                                         */
-/*  Copyright 2000-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsmooth.c
+ *
+ *   Anti-aliasing renderer interface (body).
+ *
+ * Copyright (C) 2000-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -22,7 +22,6 @@
 #include FT_OUTLINE_H
 #include "ftsmooth.h"
 #include "ftgrays.h"
-#include "ftspic.h"
 
 #include "ftsmerrs.h"
 
@@ -31,6 +30,26 @@
   static FT_Error
   ft_smooth_init( FT_Renderer  render )
   {
+
+#ifndef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
+
+    FT_Vector*  sub = render->root.library->lcd_geometry;
+
+
+    /* set up default subpixel geometry for striped RGB panels. */
+    sub[0].x = -21;
+    sub[0].y = 0;
+    sub[1].x = 0;
+    sub[1].y = 0;
+    sub[2].x = 21;
+    sub[2].y = 0;
+
+#elif 0   /* or else, once ClearType patents expire */
+
+    FT_Library_SetLcdFilter( render->root.library, FT_LCD_FILTER_DEFAULT );
+
+#endif
+
     render->clazz->raster_class->raster_reset( render->raster, NULL, 0 );
 
     return 0;
@@ -130,7 +149,11 @@
       slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
     }
 
-    ft_glyphslot_preset_bitmap( slot, mode, origin );
+    if ( ft_glyphslot_preset_bitmap( slot, mode, origin ) )
+    {
+      error = FT_THROW( Raster_Overflow );
+      goto Exit;
+    }
 
     /* allocate new one */
     if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, bitmap->pitch ) )
@@ -235,33 +258,40 @@
       unsigned int  width  = bitmap->width;
       int           pitch  = bitmap->pitch;
 
+      FT_Vector*  sub = slot->library->lcd_geometry;
 
-      /* Render 3 separate monochrome bitmaps, shifting the outline  */
-      /* by 1/3 pixel.                                               */
-      width /= 3;
 
-      bitmap->buffer += width;
+      /* Render 3 separate monochrome bitmaps, shifting the outline.  */
+      width /= 3;
 
+      FT_Outline_Translate( outline,
+                            -sub[0].x,
+                            -sub[0].y );
       error = render->raster_render( render->raster, &params );
       if ( error )
         goto Exit;
 
-      FT_Outline_Translate( outline, -21, 0 );
-      x_shift        -= 21;
       bitmap->buffer += width;
-
+      FT_Outline_Translate( outline,
+                            sub[0].x - sub[1].x,
+                            sub[0].y - sub[1].y );
       error = render->raster_render( render->raster, &params );
+      bitmap->buffer -= width;
       if ( error )
         goto Exit;
 
-      FT_Outline_Translate( outline,  42, 0 );
-      x_shift        += 42;
-      bitmap->buffer -= 2 * width;
-
+      bitmap->buffer += 2 * width;
+      FT_Outline_Translate( outline,
+                            sub[1].x - sub[2].x,
+                            sub[1].y - sub[2].y );
       error = render->raster_render( render->raster, &params );
+      bitmap->buffer -= 2 * width;
       if ( error )
         goto Exit;
 
+      x_shift -= sub[2].x;
+      y_shift -= sub[2].y;
+
       /* XXX: Rearrange the bytes according to FT_PIXEL_MODE_LCD.    */
       /* XXX: It is more efficient to render every third byte above. */
 
@@ -286,34 +316,43 @@
     {
       int  pitch  = bitmap->pitch;
 
+      FT_Vector*  sub = slot->library->lcd_geometry;
+
 
-      /* Render 3 separate monochrome bitmaps, shifting the outline  */
-      /* by 1/3 pixel. Triple the pitch to render on each third row. */
+      /* Render 3 separate monochrome bitmaps, shifting the outline. */
+      /* Notice that the subpixel geometry vectors are rotated.      */
+      /* Triple the pitch to render on each third row.               */
       bitmap->pitch *= 3;
       bitmap->rows  /= 3;
 
-      bitmap->buffer += pitch;
-
+      FT_Outline_Translate( outline,
+                            -sub[0].y,
+                            sub[0].x );
       error = render->raster_render( render->raster, &params );
       if ( error )
         goto Exit;
 
-      FT_Outline_Translate( outline, 0,  21 );
-      y_shift        += 21;
       bitmap->buffer += pitch;
-
+      FT_Outline_Translate( outline,
+                            sub[0].y - sub[1].y,
+                            sub[1].x - sub[0].x );
       error = render->raster_render( render->raster, &params );
+      bitmap->buffer -= pitch;
       if ( error )
         goto Exit;
 
-      FT_Outline_Translate( outline, 0, -42 );
-      y_shift        -= 42;
-      bitmap->buffer -= 2 * pitch;
-
+      bitmap->buffer += 2 * pitch;
+      FT_Outline_Translate( outline,
+                            sub[1].y - sub[2].y,
+                            sub[2].x - sub[1].x );
       error = render->raster_render( render->raster, &params );
+      bitmap->buffer -= 2 * pitch;
       if ( error )
         goto Exit;
 
+      x_shift -= sub[2].y;
+      y_shift += sub[2].x;
+
       bitmap->pitch /= 3;
       bitmap->rows  *= 3;
     }
@@ -403,7 +442,7 @@
     (FT_Renderer_GetCBoxFunc)  ft_smooth_get_cbox,   /* get_glyph_cbox  */
     (FT_Renderer_SetModeFunc)  ft_smooth_set_mode,   /* set_mode        */
 
-    (FT_Raster_Funcs*)&FT_GRAYS_RASTER_GET           /* raster_class    */
+    (FT_Raster_Funcs*)&ft_grays_raster               /* raster_class    */
   )
 
 
@@ -430,7 +469,7 @@
     (FT_Renderer_GetCBoxFunc)  ft_smooth_get_cbox,    /* get_glyph_cbox  */
     (FT_Renderer_SetModeFunc)  ft_smooth_set_mode,    /* set_mode        */
 
-    (FT_Raster_Funcs*)&FT_GRAYS_RASTER_GET            /* raster_class    */
+    (FT_Raster_Funcs*)&ft_grays_raster                /* raster_class    */
   )
 
 
@@ -457,7 +496,7 @@
     (FT_Renderer_GetCBoxFunc)  ft_smooth_get_cbox,      /* get_glyph_cbox  */
     (FT_Renderer_SetModeFunc)  ft_smooth_set_mode,      /* set_mode        */
 
-    (FT_Raster_Funcs*)&FT_GRAYS_RASTER_GET              /* raster_class    */
+    (FT_Raster_Funcs*)&ft_grays_raster                  /* raster_class    */
   )
 
 
diff --git a/thirdparty/freetype/src/smooth/ftsmooth.h b/thirdparty/freetype/src/smooth/ftsmooth.h
index c76ffc5034..fbb21a31d0 100644
--- a/thirdparty/freetype/src/smooth/ftsmooth.h
+++ b/thirdparty/freetype/src/smooth/ftsmooth.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftsmooth.h                                                             */
-/*                                                                         */
-/*    Anti-aliasing renderer interface (specification).                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ftsmooth.h
+ *
+ *   Anti-aliasing renderer interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef FTSMOOTH_H_
diff --git a/thirdparty/freetype/src/smooth/ftspic.c b/thirdparty/freetype/src/smooth/ftspic.c
deleted file mode 100644
index 10f04cf4cc..0000000000
--- a/thirdparty/freetype/src/smooth/ftspic.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftspic.c                                                               */
-/*                                                                         */
-/*    The FreeType position independent code services for smooth module.   */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "ftspic.h"
-#include "ftsmerrs.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from ftgrays.c */
-  void
-  FT_Init_Class_ft_grays_raster( FT_Raster_Funcs*  funcs );
-
-
-  void
-  ft_smooth_renderer_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->smooth )
-    {
-      SmoothPIC*  container = (SmoothPIC*)pic_container->smooth;
-
-
-      if ( --container->ref_count )
-        return;
-
-      FT_FREE( container );
-      pic_container->smooth = NULL;
-    }
-  }
-
-
-  FT_Error
-  ft_smooth_renderer_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    SmoothPIC*         container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* since this function also serve smooth_lcd and smooth_lcdv renderers,
-       it implements reference counting */
-    if ( pic_container->smooth )
-    {
-      ((SmoothPIC*)pic_container->smooth)->ref_count++;
-      return error;
-    }
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->smooth = container;
-
-    container->ref_count = 1;
-
-    /* initialize pointer table -                       */
-    /* this is how the module usually expects this data */
-    FT_Init_Class_ft_grays_raster( &container->ft_grays_raster );
-
-    return error;
-  }
-
-
-  /* re-route these init and free functions to the above functions */
-  FT_Error
-  ft_smooth_lcd_renderer_class_pic_init( FT_Library  library )
-  {
-    return ft_smooth_renderer_class_pic_init( library );
-  }
-
-
-  void
-  ft_smooth_lcd_renderer_class_pic_free( FT_Library  library )
-  {
-    ft_smooth_renderer_class_pic_free( library );
-  }
-
-
-  FT_Error
-  ft_smooth_lcdv_renderer_class_pic_init( FT_Library  library )
-  {
-    return ft_smooth_renderer_class_pic_init( library );
-  }
-
-
-  void
-  ft_smooth_lcdv_renderer_class_pic_free( FT_Library  library )
-  {
-    ft_smooth_renderer_class_pic_free( library );
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/smooth/ftspic.h b/thirdparty/freetype/src/smooth/ftspic.h
deleted file mode 100644
index 80fb64cff4..0000000000
--- a/thirdparty/freetype/src/smooth/ftspic.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ftspic.h                                                               */
-/*                                                                         */
-/*    The FreeType position independent code services for smooth module.   */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef FTSPIC_H_
-#define FTSPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-FT_BEGIN_HEADER
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define FT_GRAYS_RASTER_GET  ft_grays_raster
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-  typedef struct  SmoothPIC_
-  {
-    int              ref_count;
-    FT_Raster_Funcs  ft_grays_raster;
-
-  } SmoothPIC;
-
-
-#define GET_PIC( lib ) \
-          ( (SmoothPIC*)( (lib)->pic_container.smooth ) )
-#define FT_GRAYS_RASTER_GET  ( GET_PIC( library )->ft_grays_raster )
-
-
-  /* see ftspic.c for the implementation */
-  void
-  ft_smooth_renderer_class_pic_free( FT_Library  library );
-
-  void
-  ft_smooth_lcd_renderer_class_pic_free( FT_Library  library );
-
-  void
-  ft_smooth_lcdv_renderer_class_pic_free( FT_Library  library );
-
-  FT_Error
-  ft_smooth_renderer_class_pic_init( FT_Library  library );
-
-  FT_Error
-  ft_smooth_lcd_renderer_class_pic_init( FT_Library  library );
-
-  FT_Error
-  ft_smooth_lcdv_renderer_class_pic_init( FT_Library  library );
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-FT_END_HEADER
-
-#endif /* FTSPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/smooth/module.mk b/thirdparty/freetype/src/smooth/module.mk
index 5b8bc3be3b..44b76dfec6 100644
--- a/thirdparty/freetype/src/smooth/module.mk
+++ b/thirdparty/freetype/src/smooth/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/smooth/rules.mk b/thirdparty/freetype/src/smooth/rules.mk
index f30824a367..0153ac24a4 100644
--- a/thirdparty/freetype/src/smooth/rules.mk
+++ b/thirdparty/freetype/src/smooth/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -29,8 +29,7 @@ SMOOTH_COMPILE := $(CC) $(ANSIFLAGS)                               \
 # smooth driver sources (i.e., C files)
 #
 SMOOTH_DRV_SRC := $(SMOOTH_DIR)/ftgrays.c  \
-                  $(SMOOTH_DIR)/ftsmooth.c \
-                  $(SMOOTH_DIR)/ftspic.c
+                  $(SMOOTH_DIR)/ftsmooth.c
 
 
 # smooth driver headers
diff --git a/thirdparty/freetype/src/smooth/smooth.c b/thirdparty/freetype/src/smooth/smooth.c
index 5249a8931e..9c543d3360 100644
--- a/thirdparty/freetype/src/smooth/smooth.c
+++ b/thirdparty/freetype/src/smooth/smooth.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  smooth.c                                                               */
-/*                                                                         */
-/*    FreeType anti-aliasing rasterer module component (body only).        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * smooth.c
+ *
+ *   FreeType anti-aliasing rasterer module component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -21,7 +21,6 @@
 
 #include "ftgrays.c"
 #include "ftsmooth.c"
-#include "ftspic.c"
 
 
 /* END */
diff --git a/thirdparty/freetype/src/truetype/module.mk b/thirdparty/freetype/src/truetype/module.mk
index 16bc9c8b20..8a841cc956 100644
--- a/thirdparty/freetype/src/truetype/module.mk
+++ b/thirdparty/freetype/src/truetype/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/truetype/rules.mk b/thirdparty/freetype/src/truetype/rules.mk
index e16113f128..df8dcd4a4e 100644
--- a/thirdparty/freetype/src/truetype/rules.mk
+++ b/thirdparty/freetype/src/truetype/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
@@ -33,7 +33,6 @@ TT_DRV_SRC := $(TT_DIR)/ttdriver.c \
               $(TT_DIR)/ttgxvar.c  \
               $(TT_DIR)/ttinterp.c \
               $(TT_DIR)/ttobjs.c   \
-              $(TT_DIR)/ttpic.c    \
               $(TT_DIR)/ttpload.c  \
               $(TT_DIR)/ttsubpix.c
 
diff --git a/thirdparty/freetype/src/truetype/truetype.c b/thirdparty/freetype/src/truetype/truetype.c
index 484370975c..84928e7321 100644
--- a/thirdparty/freetype/src/truetype/truetype.c
+++ b/thirdparty/freetype/src/truetype/truetype.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  truetype.c                                                             */
-/*                                                                         */
-/*    FreeType TrueType driver component (body only).                      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * truetype.c
+ *
+ *   FreeType TrueType driver component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
@@ -24,7 +24,6 @@
 #include "ttgxvar.c"    /* gx distortable font */
 #include "ttinterp.c"
 #include "ttobjs.c"     /* object manager      */
-#include "ttpic.c"
 #include "ttpload.c"    /* tables loader       */
 #include "ttsubpix.c"
 
diff --git a/thirdparty/freetype/src/truetype/ttdriver.c b/thirdparty/freetype/src/truetype/ttdriver.c
index 820cafbb8d..ff626d53ab 100644
--- a/thirdparty/freetype/src/truetype/ttdriver.c
+++ b/thirdparty/freetype/src/truetype/ttdriver.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttdriver.c                                                             */
-/*                                                                         */
-/*    TrueType font driver implementation (body).                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttdriver.c
+ *
+ *   TrueType font driver implementation (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -43,20 +43,19 @@
 
 #include "tterrors.h"
 
-#include "ttpic.h"
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttdriver
+#define FT_COMPONENT  ttdriver
 
 
   /*
-   *  PROPERTY SERVICE
+   * PROPERTY SERVICE
    *
    */
   static FT_Error
@@ -164,38 +163,42 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_get_kerning                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A driver method used to return the kerning vector between two      */
-  /*    glyphs of the same face.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to the source face object.                 */
-  /*                                                                       */
-  /*    left_glyph  :: The index of the left glyph in the kern pair.       */
-  /*                                                                       */
-  /*    right_glyph :: The index of the right glyph in the kern pair.      */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    kerning     :: The kerning vector.  This is in font units for      */
-  /*                   scalable formats, and in pixels for fixed-sizes     */
-  /*                   formats.                                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only horizontal layouts (left-to-right & right-to-left) are        */
-  /*    supported by this function.  Other layouts, or more sophisticated  */
-  /*    kernings, are out of scope of this method (the basic driver        */
-  /*    interface is meant to be simple).                                  */
-  /*                                                                       */
-  /*    They can be implemented by format-specific interfaces.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_get_kerning
+   *
+   * @Description:
+   *   A driver method used to return the kerning vector between two
+   *   glyphs of the same face.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   left_glyph ::
+   *     The index of the left glyph in the kern pair.
+   *
+   *   right_glyph ::
+   *     The index of the right glyph in the kern pair.
+   *
+   * @Output:
+   *   kerning ::
+   *     The kerning vector.  This is in font units for
+   *     scalable formats, and in pixels for fixed-sizes
+   *     formats.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   * @Note:
+   *   Only horizontal layouts (left-to-right & right-to-left) are
+   *   supported by this function.  Other layouts, or more sophisticated
+   *   kernings, are out of scope of this method (the basic driver
+   *   interface is meant to be simple).
+   *
+   *   They can be implemented by format-specific interfaces.
+   */
   static FT_Error
   tt_get_kerning( FT_Face     ttface,          /* TT_Face */
                   FT_UInt     left_glyph,
@@ -384,32 +387,36 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_glyph_load                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A driver method used to load a glyph within a given glyph slot.    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    slot        :: A handle to the target slot object where the glyph  */
-  /*                   will be loaded.                                     */
-  /*                                                                       */
-  /*    size        :: A handle to the source face size at which the glyph */
-  /*                   must be scaled, loaded, etc.                        */
-  /*                                                                       */
-  /*    glyph_index :: The index of the glyph in the font file.            */
-  /*                                                                       */
-  /*    load_flags  :: A flag indicating what to load for this glyph.  The */
-  /*                   FT_LOAD_XXX constants can be used to control the    */
-  /*                   glyph loading process (e.g., whether the outline    */
-  /*                   should be scaled, whether to load bitmaps or not,   */
-  /*                   whether to hint the outline, etc).                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_glyph_load
+   *
+   * @Description:
+   *   A driver method used to load a glyph within a given glyph slot.
+   *
+   * @Input:
+   *   slot ::
+   *     A handle to the target slot object where the glyph
+   *     will be loaded.
+   *
+   *   size ::
+   *     A handle to the source face size at which the glyph
+   *     must be scaled, loaded, etc.
+   *
+   *   glyph_index ::
+   *     The index of the glyph in the font file.
+   *
+   *   load_flags ::
+   *     A flag indicating what to load for this glyph.  The
+   *     FT_LOAD_XXX constants can be used to control the
+   *     glyph loading process (e.g., whether the outline
+   *     should be scaled, whether to load bitmaps or not,
+   *     whether to hint the outline, etc).
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   tt_glyph_load( FT_GlyphSlot  ttslot,      /* TT_GlyphSlot */
                  FT_Size       ttsize,      /* TT_Size      */
@@ -464,7 +471,7 @@
                       ? &ttsize->metrics
                       : &size->hinted_metrics;
 
-    /* now load the glyph outline if necessary */
+    /* now fill in the glyph slot with outline/bitmap/layered */
     error = TT_Load_Glyph( size, slot, glyph_index, load_flags );
 
     /* force drop-out mode to 2 - irrelevant now */
@@ -491,17 +498,19 @@
   FT_DEFINE_SERVICE_MULTIMASTERSREC(
     tt_service_gx_multi_masters,
 
-    (FT_Get_MM_Func)        NULL,                   /* get_mm         */
-    (FT_Set_MM_Design_Func) NULL,                   /* set_mm_design  */
-    (FT_Set_MM_Blend_Func)  TT_Set_MM_Blend,        /* set_mm_blend   */
-    (FT_Get_MM_Blend_Func)  TT_Get_MM_Blend,        /* get_mm_blend   */
-    (FT_Get_MM_Var_Func)    TT_Get_MM_Var,          /* get_mm_var     */
-    (FT_Set_Var_Design_Func)TT_Set_Var_Design,      /* set_var_design */
-    (FT_Get_Var_Design_Func)TT_Get_Var_Design,      /* get_var_design */
-    (FT_Set_Instance_Func)  TT_Set_Named_Instance,  /* set_instance   */
-
-    (FT_Get_Var_Blend_Func) tt_get_var_blend,       /* get_var_blend  */
-    (FT_Done_Blend_Func)    tt_done_blend           /* done_blend     */
+    (FT_Get_MM_Func)             NULL,                  /* get_mm              */
+    (FT_Set_MM_Design_Func)      NULL,                  /* set_mm_design       */
+    (FT_Set_MM_Blend_Func)       TT_Set_MM_Blend,       /* set_mm_blend        */
+    (FT_Get_MM_Blend_Func)       TT_Get_MM_Blend,       /* get_mm_blend        */
+    (FT_Get_MM_Var_Func)         TT_Get_MM_Var,         /* get_mm_var          */
+    (FT_Set_Var_Design_Func)     TT_Set_Var_Design,     /* set_var_design      */
+    (FT_Get_Var_Design_Func)     TT_Get_Var_Design,     /* get_var_design      */
+    (FT_Set_Instance_Func)       TT_Set_Named_Instance, /* set_instance        */
+    (FT_Set_MM_WeightVector_Func)NULL,                  /* set_mm_weightvector */
+    (FT_Get_MM_WeightVector_Func)NULL,                  /* get_mm_weightvector */
+
+    (FT_Get_Var_Blend_Func)      tt_get_var_blend,      /* get_var_blend       */
+    (FT_Done_Blend_Func)         tt_done_blend          /* done_blend          */
   )
 
   FT_DEFINE_SERVICE_METRICSVARIATIONSREC(
@@ -548,19 +557,19 @@
     tt_services,
 
     FT_SERVICE_ID_FONT_FORMAT,        FT_FONT_FORMAT_TRUETYPE,
-    FT_SERVICE_ID_MULTI_MASTERS,      &TT_SERVICE_GX_MULTI_MASTERS_GET,
-    FT_SERVICE_ID_METRICS_VARIATIONS, &TT_SERVICE_METRICS_VARIATIONS_GET,
+    FT_SERVICE_ID_MULTI_MASTERS,      &tt_service_gx_multi_masters,
+    FT_SERVICE_ID_METRICS_VARIATIONS, &tt_service_metrics_variations,
     FT_SERVICE_ID_TRUETYPE_ENGINE,    &tt_service_truetype_engine,
-    FT_SERVICE_ID_TT_GLYF,            &TT_SERVICE_TRUETYPE_GLYF_GET,
-    FT_SERVICE_ID_PROPERTIES,         &TT_SERVICE_PROPERTIES_GET )
+    FT_SERVICE_ID_TT_GLYF,            &tt_service_truetype_glyf,
+    FT_SERVICE_ID_PROPERTIES,         &tt_service_properties )
 #else
   FT_DEFINE_SERVICEDESCREC4(
     tt_services,
 
     FT_SERVICE_ID_FONT_FORMAT,     FT_FONT_FORMAT_TRUETYPE,
     FT_SERVICE_ID_TRUETYPE_ENGINE, &tt_service_truetype_engine,
-    FT_SERVICE_ID_TT_GLYF,         &TT_SERVICE_TRUETYPE_GLYF_GET,
-    FT_SERVICE_ID_PROPERTIES,      &TT_SERVICE_PROPERTIES_GET )
+    FT_SERVICE_ID_TT_GLYF,         &tt_service_truetype_glyf,
+    FT_SERVICE_ID_PROPERTIES,      &tt_service_properties )
 #endif
 
 
@@ -574,26 +583,15 @@
     SFNT_Service         sfnt;
 
 
-    /* TT_SERVICES_GET dereferences `library' in PIC mode */
-#ifdef FT_CONFIG_OPTION_PIC
-    if ( !driver )
-      return NULL;
-    library = driver->library;
-    if ( !library )
-      return NULL;
-#endif
-
-    result = ft_service_list_lookup( TT_SERVICES_GET, tt_interface );
+    result = ft_service_list_lookup( tt_services, tt_interface );
     if ( result )
       return result;
 
-#ifndef FT_CONFIG_OPTION_PIC
     if ( !driver )
       return NULL;
     library = driver->library;
     if ( !library )
       return NULL;
-#endif
 
     /* only return the default interface from the SFNT module */
     sfntd = FT_Get_Module( library, "sfnt" );
diff --git a/thirdparty/freetype/src/truetype/ttdriver.h b/thirdparty/freetype/src/truetype/ttdriver.h
index 707aa68edf..3936c6a4de 100644
--- a/thirdparty/freetype/src/truetype/ttdriver.h
+++ b/thirdparty/freetype/src/truetype/ttdriver.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttdriver.h                                                             */
-/*                                                                         */
-/*    High-level TrueType driver interface (specification).                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttdriver.h
+ *
+ *   High-level TrueType driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTDRIVER_H_
@@ -26,10 +26,8 @@
 
 FT_BEGIN_HEADER
 
-
   FT_DECLARE_DRIVER( tt_driver_class )
 
-
 FT_END_HEADER
 
 #endif /* TTDRIVER_H_ */
diff --git a/thirdparty/freetype/src/truetype/tterrors.h b/thirdparty/freetype/src/truetype/tterrors.h
index 88bca3a04a..5609d28d68 100644
--- a/thirdparty/freetype/src/truetype/tterrors.h
+++ b/thirdparty/freetype/src/truetype/tterrors.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  tterrors.h                                                             */
-/*                                                                         */
-/*    TrueType error codes (specification only).                           */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the TrueType error enumeration            */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * tterrors.h
+ *
+ *   TrueType error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the TrueType error enumeration
+   * constants.
+   *
+   */
 
 #ifndef TTERRORS_H_
 #define TTERRORS_H_
diff --git a/thirdparty/freetype/src/truetype/ttgload.c b/thirdparty/freetype/src/truetype/ttgload.c
index 39d9c3f736..cbee27aa69 100644
--- a/thirdparty/freetype/src/truetype/ttgload.c
+++ b/thirdparty/freetype/src/truetype/ttgload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttgload.c                                                              */
-/*                                                                         */
-/*    TrueType Glyph Loader (body).                                        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttgload.c
+ *
+ *   TrueType Glyph Loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -38,20 +38,35 @@
 #include "ttsubpix.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttgload
+#define FT_COMPONENT  ttgload
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Composite glyph flags.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Simple glyph flags.
+   */
+#define ON_CURVE_POINT  0x01  /* same value as FT_CURVE_TAG_ON            */
+#define X_SHORT_VECTOR  0x02
+#define Y_SHORT_VECTOR  0x04
+#define REPEAT_FLAG     0x08
+#define X_POSITIVE      0x10  /* two meanings depending on X_SHORT_VECTOR */
+#define SAME_X          0x10
+#define Y_POSITIVE      0x20  /* two meanings depending on Y_SHORT_VECTOR */
+#define SAME_Y          0x20
+#define OVERLAP_SIMPLE  0x40  /* we ignore this value                     */
+
+
+  /**************************************************************************
+   *
+   * Composite glyph flags.
+   */
 #define ARGS_ARE_WORDS             0x0001
 #define ARGS_ARE_XY_VALUES         0x0002
 #define ROUND_XY_TO_GRID           0x0004
@@ -62,15 +77,15 @@
 #define WE_HAVE_A_2X2              0x0080
 #define WE_HAVE_INSTR              0x0100
 #define USE_MY_METRICS             0x0200
-#define OVERLAP_COMPOUND           0x0400
+#define OVERLAP_COMPOUND           0x0400  /* we ignore this value */
 #define SCALED_COMPONENT_OFFSET    0x0800
 #define UNSCALED_COMPONENT_OFFSET  0x1000
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Return the horizontal metrics in font units for a given glyph.        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Return the horizontal metrics in font units for a given glyph.
+   */
   FT_LOCAL_DEF( void )
   TT_Get_HMetrics( TT_Face     face,
                    FT_UInt     idx,
@@ -84,11 +99,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Return the vertical metrics in font units for a given glyph.          */
-  /* See function `tt_loader_set_pp' below for explanations.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Return the vertical metrics in font units for a given glyph.
+   * See function `tt_loader_set_pp' below for explanations.
+   */
   FT_LOCAL_DEF( void )
   TT_Get_VMetrics( TT_Face     face,
                    FT_UInt     idx,
@@ -250,13 +265,13 @@
 #endif /* FT_CONFIG_OPTION_INCREMENTAL */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The following functions are used by default with TrueType fonts.      */
-  /* However, they can be replaced by alternatives if we need to support   */
-  /* TrueType-compressed formats (like MicroType) in the future.           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * The following functions are used by default with TrueType fonts.
+   * However, they can be replaced by alternatives if we need to support
+   * TrueType-compressed formats (like MicroType) in the future.
+   *
+   */
 
   FT_CALLBACK_DEF( FT_Error )
   TT_Access_Glyph_Frame( TT_Loader  loader,
@@ -267,12 +282,9 @@
     FT_Error   error;
     FT_Stream  stream = loader->stream;
 
-    /* for non-debug mode */
     FT_UNUSED( glyph_index );
 
 
-    FT_TRACE4(( "Glyph %ld\n", glyph_index ));
-
     /* the following line sets the `error' variable through macros! */
     if ( FT_STREAM_SEEK( offset ) || FT_FRAME_ENTER( byte_count ) )
       return error;
@@ -337,7 +349,7 @@
     FT_Byte         *flag, *flag_limit;
     FT_Byte         c, count;
     FT_Vector       *vec, *vec_limit;
-    FT_Pos          x;
+    FT_Pos          x, y;
     FT_Short        *cont, *cont_limit, prev_cont;
     FT_Int          xy_size = 0;
 
@@ -382,6 +394,8 @@
         goto Invalid_Outline;
     }
 
+    FT_TRACE5(( "  # of points: %d\n", n_points ));
+
     /* note that we will add four phantom points later */
     error = FT_GLYPHLOADER_CHECK_POINTS( gloader, n_points + 4, 0 );
     if ( error )
@@ -452,7 +466,7 @@
         goto Invalid_Outline;
 
       *flag++ = c = FT_NEXT_BYTE( p );
-      if ( c & 8 )
+      if ( c & REPEAT_FLAG )
       {
         if ( p + 1 > limit )
           goto Invalid_Outline;
@@ -478,31 +492,29 @@
 
     for ( ; vec < vec_limit; vec++, flag++ )
     {
-      FT_Pos   y = 0;
-      FT_Byte  f = *flag;
+      FT_Pos   delta = 0;
+      FT_Byte  f     = *flag;
 
 
-      if ( f & 2 )
+      if ( f & X_SHORT_VECTOR )
       {
         if ( p + 1 > limit )
           goto Invalid_Outline;
 
-        y = (FT_Pos)FT_NEXT_BYTE( p );
-        if ( ( f & 16 ) == 0 )
-          y = -y;
+        delta = (FT_Pos)FT_NEXT_BYTE( p );
+        if ( !( f & X_POSITIVE ) )
+          delta = -delta;
       }
-      else if ( ( f & 16 ) == 0 )
+      else if ( !( f & SAME_X ) )
       {
         if ( p + 2 > limit )
           goto Invalid_Outline;
 
-        y = (FT_Pos)FT_NEXT_SHORT( p );
+        delta = (FT_Pos)FT_NEXT_SHORT( p );
       }
 
-      x     += y;
+      x     += delta;
       vec->x = x;
-      /* the cast is for stupid compilers */
-      *flag  = (FT_Byte)( f & ~( 2 | 16 ) );
     }
 
     /* reading the Y coordinates */
@@ -510,35 +522,36 @@
     vec       = gloader->current.outline.points;
     vec_limit = vec + n_points;
     flag      = (FT_Byte*)outline->tags;
-    x         = 0;
+    y         = 0;
 
     for ( ; vec < vec_limit; vec++, flag++ )
     {
-      FT_Pos   y = 0;
-      FT_Byte  f = *flag;
+      FT_Pos   delta = 0;
+      FT_Byte  f     = *flag;
 
 
-      if ( f & 4 )
+      if ( f & Y_SHORT_VECTOR )
       {
         if ( p + 1 > limit )
           goto Invalid_Outline;
 
-        y = (FT_Pos)FT_NEXT_BYTE( p );
-        if ( ( f & 32 ) == 0 )
-          y = -y;
+        delta = (FT_Pos)FT_NEXT_BYTE( p );
+        if ( !( f & Y_POSITIVE ) )
+          delta = -delta;
       }
-      else if ( ( f & 32 ) == 0 )
+      else if ( !( f & SAME_Y ) )
       {
         if ( p + 2 > limit )
           goto Invalid_Outline;
 
-        y = (FT_Pos)FT_NEXT_SHORT( p );
+        delta = (FT_Pos)FT_NEXT_SHORT( p );
       }
 
-      x     += y;
-      vec->y = x;
+      y     += delta;
+      vec->y = y;
+
       /* the cast is for stupid compilers */
-      *flag  = (FT_Byte)( f & FT_CURVE_TAG_ON );
+      *flag  = (FT_Byte)( f & ON_CURVE_POINT );
     }
 
     outline->n_points   = (FT_Short)n_points;
@@ -559,9 +572,10 @@
   TT_Load_Composite_Glyph( TT_Loader  loader )
   {
     FT_Error        error;
-    FT_Byte*        p       = loader->cursor;
-    FT_Byte*        limit   = loader->limit;
-    FT_GlyphLoader  gloader = loader->gloader;
+    FT_Byte*        p          = loader->cursor;
+    FT_Byte*        limit      = loader->limit;
+    FT_GlyphLoader  gloader    = loader->gloader;
+    FT_Long         num_glyphs = loader->face->root.num_glyphs;
     FT_SubGlyph     subglyph;
     FT_UInt         num_subglyphs;
 
@@ -590,6 +604,11 @@
       subglyph->flags = FT_NEXT_USHORT( p );
       subglyph->index = FT_NEXT_USHORT( p );
 
+      /* we reject composites that have components */
+      /* with invalid glyph indices                */
+      if ( subglyph->index >= num_glyphs )
+        goto Invalid_Composite;
+
       /* check space */
       count = 2;
       if ( subglyph->flags & ARGS_ARE_WORDS )
@@ -768,15 +787,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Hint_Glyph                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Hint the glyph using the zone prepared by the caller.  Note that   */
-  /*    the zone is supposed to include four phantom points.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Hint_Glyph
+   *
+   * @Description:
+   *   Hint the glyph using the zone prepared by the caller.  Note that
+   *   the zone is supposed to include four phantom points.
+   */
   static FT_Error
   TT_Hint_Glyph( TT_Loader  loader,
                  FT_Bool    is_composite )
@@ -797,15 +816,9 @@
 
 
 #ifdef TT_USE_BYTECODE_INTERPRETER
-    if ( loader->glyph->control_len > 0xFFFFL )
-    {
-      FT_TRACE1(( "TT_Hint_Glyph: too long instructions" ));
-      FT_TRACE1(( " (0x%lx byte) is truncated\n",
-                  loader->glyph->control_len ));
-    }
     n_ins = loader->glyph->control_len;
 
-    /* save original point position in org */
+    /* save original point positions in `org' array */
     if ( n_ins > 0 )
       FT_ARRAY_COPY( zone->org, zone->cur, zone->n_points );
 
@@ -896,16 +909,16 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Process_Simple_Glyph                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Once a simple glyph has been loaded, it needs to be processed.     */
-  /*    Usually, this means scaling and hinting through bytecode           */
-  /*    interpretation.                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Process_Simple_Glyph
+   *
+   * @Description:
+   *   Once a simple glyph has been loaded, it needs to be processed.
+   *   Usually, this means scaling and hinting through bytecode
+   *   interpretation.
+   */
   static FT_Error
   TT_Process_Simple_Glyph( TT_Loader  loader )
   {
@@ -1071,15 +1084,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Process_Composite_Component                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Once a composite component has been loaded, it needs to be         */
-  /*    processed.  Usually, this means transforming and translating.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Process_Composite_Component
+   *
+   * @Description:
+   *   Once a composite component has been loaded, it needs to be
+   *   processed.  Usually, this means transforming and translating.
+   */
   static FT_Error
   TT_Process_Composite_Component( TT_Loader    loader,
                                   FT_SubGlyph  subglyph,
@@ -1153,10 +1166,10 @@
 
 #if 0
 
-        /*******************************************************************/
-        /*                                                                 */
-        /* This algorithm is what Apple documents.  But it doesn't work.   */
-        /*                                                                 */
+        /********************************************************************
+         *
+         * This algorithm is what Apple documents.  But it doesn't work.
+         */
         int  a = subglyph->transform.xx > 0 ?  subglyph->transform.xx
                                             : -subglyph->transform.xx;
         int  b = subglyph->transform.yx > 0 ?  subglyph->transform.yx
@@ -1178,10 +1191,10 @@
 
 #else /* 1 */
 
-        /*******************************************************************/
-        /*                                                                 */
-        /* This algorithm is a guess and works much better than the above. */
-        /*                                                                 */
+        /********************************************************************
+         *
+         * This algorithm is a guess and works much better than the above.
+         */
         FT_Fixed  mac_xscale = FT_Hypot( subglyph->transform.xx,
                                          subglyph->transform.xy );
         FT_Fixed  mac_yscale = FT_Hypot( subglyph->transform.yy,
@@ -1239,16 +1252,16 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Process_Composite_Glyph                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    This is slightly different from TT_Process_Simple_Glyph, in that   */
-  /*    its sole purpose is to hint the glyph.  Thus this function is      */
-  /*    only available when bytecode interpreter is enabled.               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Process_Composite_Glyph
+   *
+   * @Description:
+   *   This is slightly different from TT_Process_Simple_Glyph, in that
+   *   its sole purpose is to hint the glyph.  Thus this function is
+   *   only available when bytecode interpreter is enabled.
+   */
   static FT_Error
   TT_Process_Composite_Glyph( TT_Loader  loader,
                               FT_UInt    start_point,
@@ -1460,7 +1473,7 @@
     }
 #endif
 
-    use_aw_2 = (FT_Bool)( subpixel_hinting && grayscale );
+    use_aw_2 = FT_BOOL( subpixel_hinting && grayscale );
 
     loader->pp1.x = loader->bbox.xMin - loader->left_bearing;
     loader->pp1.y = 0;
@@ -1497,27 +1510,28 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    load_truetype_glyph                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Loads a given truetype glyph.  Handles composites and uses a       */
-  /*    TT_Loader object.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   load_truetype_glyph
+   *
+   * @Description:
+   *   Loads a given truetype glyph.  Handles composites and uses a
+   *   TT_Loader object.
+   */
   static FT_Error
   load_truetype_glyph( TT_Loader  loader,
                        FT_UInt    glyph_index,
                        FT_UInt    recurse_count,
                        FT_Bool    header_only )
   {
-    FT_Error        error        = FT_Err_Ok;
+    FT_Error        error   = FT_Err_Ok;
     FT_Fixed        x_scale, y_scale;
     FT_ULong        offset;
-    TT_Face         face         = loader->face;
-    FT_GlyphLoader  gloader      = loader->gloader;
-    FT_Bool         opened_frame = 0;
+    TT_Face         face    = loader->face;
+    FT_GlyphLoader  gloader = loader->gloader;
+
+    FT_Bool  opened_frame = 0;
 
 #ifdef FT_CONFIG_OPTION_INCREMENTAL
     FT_StreamRec    inc_stream;
@@ -1550,15 +1564,15 @@
 
     loader->glyph_index = glyph_index;
 
-    if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 )
+    if ( loader->load_flags & FT_LOAD_NO_SCALE )
     {
-      x_scale = loader->size->metrics->x_scale;
-      y_scale = loader->size->metrics->y_scale;
+      x_scale = 0x10000L;
+      y_scale = 0x10000L;
     }
     else
     {
-      x_scale = 0x10000L;
-      y_scale = 0x10000L;
+      x_scale = loader->size->metrics->x_scale;
+      y_scale = loader->size->metrics->y_scale;
     }
 
     /* Set `offset' to the start of the glyph relative to the start of */
@@ -1617,38 +1631,36 @@
       if ( error )
         goto Exit;
 
-      opened_frame = 1;
-
       /* read glyph header first */
       error = face->read_glyph_header( loader );
-      if ( error )
-        goto Exit;
 
-      /* the metrics must be computed after loading the glyph header */
-      /* since we need the glyph's `yMax' value in case the vertical */
-      /* metrics must be emulated                                    */
-      error = tt_get_metrics( loader, glyph_index );
-      if ( error )
-        goto Exit;
+      face->forget_glyph_frame( loader );
 
-      if ( header_only )
+      if ( error )
         goto Exit;
     }
 
+    /* a space glyph */
     if ( loader->byte_len == 0 || loader->n_contours == 0 )
     {
       loader->bbox.xMin = 0;
       loader->bbox.xMax = 0;
       loader->bbox.yMin = 0;
       loader->bbox.yMax = 0;
+    }
 
-      error = tt_get_metrics( loader, glyph_index );
-      if ( error )
-        goto Exit;
+    /* the metrics must be computed after loading the glyph header */
+    /* since we need the glyph's `yMax' value in case the vertical */
+    /* metrics must be emulated                                    */
+    error = tt_get_metrics( loader, glyph_index );
+    if ( error )
+      goto Exit;
 
-      if ( header_only )
-        goto Exit;
+    if ( header_only )
+      goto Exit;
 
+    if ( loader->byte_len == 0 || loader->n_contours == 0 )
+    {
       /* must initialize points before (possibly) overriding */
       /* glyph metrics from the incremental interface        */
       tt_loader_set_pp( loader );
@@ -1704,7 +1716,6 @@
         loader->pp4.x = points[3].x;
         loader->pp4.y = points[3].y;
 
-
         /* recalculate linear horizontal and vertical advances */
         /* if we don't have HVAR and VVAR, respectively        */
         if ( !( loader->face->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) )
@@ -1745,6 +1756,16 @@
     /***********************************************************************/
     /***********************************************************************/
 
+    /* we now open a frame again, right after the glyph header */
+    /* (which consists of 10 bytes)                            */
+    error = face->access_glyph_frame( loader, glyph_index,
+                                      face->glyf_offset + offset + 10,
+                                      (FT_UInt)loader->byte_len - 10 );
+    if ( error )
+      goto Exit;
+
+    opened_frame = 1;
+
     /* if it is a simple glyph, load it */
 
     if ( loader->n_contours > 0 )
@@ -1790,7 +1811,6 @@
        * pointers with a width of at least 32 bits.
        */
 
-
       /* clear the nodes filled by sibling chains */
       node = ft_list_get_node_at( &loader->composites, recurse_count );
       for ( node2 = node; node2; node2 = node2->next )
@@ -2002,7 +2022,7 @@
           FT_Int  linear_vadvance;
 
 
-          /* Each time we call load_truetype_glyph in this loop, the   */
+          /* Each time we call `load_truetype_glyph' in this loop, the */
           /* value of `gloader.base.subglyphs' can change due to table */
           /* reallocations.  We thus need to recompute the subglyph    */
           /* pointer on each iteration.                                */
@@ -2045,12 +2065,14 @@
           if ( num_points == num_base_points )
             continue;
 
-          /* gloader->base.outline consists of three parts:               */
-          /* 0 -(1)-> start_point -(2)-> num_base_points -(3)-> n_points. */
-          /*                                                              */
-          /* (1): exists from the beginning                               */
-          /* (2): components that have been loaded so far                 */
-          /* (3): the newly loaded component                              */
+          /* gloader->base.outline consists of three parts:           */
+          /*                                                          */
+          /* 0 ----> start_point ----> num_base_points ----> n_points */
+          /*    (1)               (2)                   (3)           */
+          /*                                                          */
+          /* (1) points that exist from the beginning                 */
+          /* (2) component points that have been loaded so far        */
+          /* (3) points of the newly loaded component                 */
           error = TT_Process_Composite_Component( loader,
                                                   subglyph,
                                                   start_point,
@@ -2132,7 +2154,7 @@
 
     glyph->metrics.horiBearingX = bbox.xMin;
     glyph->metrics.horiBearingY = bbox.yMax;
-    glyph->metrics.horiAdvance  = loader->pp2.x - loader->pp1.x;
+    glyph->metrics.horiAdvance  = SUB_LONG(loader->pp2.x, loader->pp1.x);
 
     /* Adjust advance width to the value contained in the hdmx table   */
     /* unless FT_LOAD_COMPUTE_METRICS is set or backward compatibility */
@@ -2276,13 +2298,13 @@
       /* XXX: for now, we have no better algorithm for the lsb, but it */
       /*      should work fine.                                        */
       /*                                                               */
-      glyph->metrics.vertBearingX = glyph->metrics.horiBearingX -
-                                      glyph->metrics.horiAdvance / 2;
+      glyph->metrics.vertBearingX = SUB_LONG( glyph->metrics.horiBearingX,
+                                              glyph->metrics.horiAdvance / 2 );
       glyph->metrics.vertBearingY = top;
       glyph->metrics.vertAdvance  = advance;
     }
 
-    return 0;
+    return FT_Err_Ok;
   }
 
 
@@ -2656,33 +2678,37 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Load_Glyph                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A function used to load a single glyph within a given glyph slot,  */
-  /*    for a given size.                                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    glyph       :: A handle to a target slot object where the glyph    */
-  /*                   will be loaded.                                     */
-  /*                                                                       */
-  /*    size        :: A handle to the source face size at which the glyph */
-  /*                   must be scaled/loaded.                              */
-  /*                                                                       */
-  /*    glyph_index :: The index of the glyph in the font file.            */
-  /*                                                                       */
-  /*    load_flags  :: A flag indicating what to load for this glyph.  The */
-  /*                   FT_LOAD_XXX constants can be used to control the    */
-  /*                   glyph loading process (e.g., whether the outline    */
-  /*                   should be scaled, whether to load bitmaps or not,   */
-  /*                   whether to hint the outline, etc).                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Load_Glyph
+   *
+   * @Description:
+   *   A function used to load a single glyph within a given glyph slot,
+   *   for a given size.
+   *
+   * @Input:
+   *   glyph ::
+   *     A handle to a target slot object where the glyph
+   *     will be loaded.
+   *
+   *   size ::
+   *     A handle to the source face size at which the glyph
+   *     must be scaled/loaded.
+   *
+   *   glyph_index ::
+   *     The index of the glyph in the font file.
+   *
+   *   load_flags ::
+   *     A flag indicating what to load for this glyph.  The
+   *     FT_LOAD_XXX constants can be used to control the
+   *     glyph loading process (e.g., whether the outline
+   *     should be scaled, whether to load bitmaps or not,
+   *     whether to hint the outline, etc).
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Load_Glyph( TT_Size       size,
                  TT_GlyphSlot  glyph,
diff --git a/thirdparty/freetype/src/truetype/ttgload.h b/thirdparty/freetype/src/truetype/ttgload.h
index d237cfd284..f1324bc862 100644
--- a/thirdparty/freetype/src/truetype/ttgload.h
+++ b/thirdparty/freetype/src/truetype/ttgload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttgload.h                                                              */
-/*                                                                         */
-/*    TrueType Glyph Loader (specification).                               */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttgload.h
+ *
+ *   TrueType Glyph Loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTGLOAD_H_
diff --git a/thirdparty/freetype/src/truetype/ttgxvar.c b/thirdparty/freetype/src/truetype/ttgxvar.c
index 29ab2a4efd..020918f533 100644
--- a/thirdparty/freetype/src/truetype/ttgxvar.c
+++ b/thirdparty/freetype/src/truetype/ttgxvar.c
@@ -1,42 +1,42 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttgxvar.c                                                              */
-/*                                                                         */
-/*    TrueType GX Font Variation loader                                    */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, Werner Lemberg, and George Williams.     */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Apple documents the `fvar', `gvar', `cvar', and `avar' tables at      */
-  /*                                                                       */
-  /*   https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6[fgca]var.html */
-  /*                                                                       */
-  /* The documentation for `gvar' is not intelligible; `cvar' refers you   */
-  /* to `gvar' and is thus also incomprehensible.                          */
-  /*                                                                       */
-  /* The documentation for `avar' appears correct, but Apple has no fonts  */
-  /* with an `avar' table, so it is hard to test.                          */
-  /*                                                                       */
-  /* Many thanks to John Jenkins (at Apple) in figuring this out.          */
-  /*                                                                       */
-  /*                                                                       */
-  /* Apple's `kern' table has some references to tuple indices, but as     */
-  /* there is no indication where these indices are defined, nor how to    */
-  /* interpolate the kerning values (different tuples have different       */
-  /* classes) this issue is ignored.                                       */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * ttgxvar.c
+ *
+ *   TrueType GX Font Variation loader
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, Werner Lemberg, and George Williams.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * Apple documents the `fvar', `gvar', `cvar', and `avar' tables at
+   *
+   *   https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6[fgca]var.html
+   *
+   * The documentation for `gvar' is not intelligible; `cvar' refers you
+   * to `gvar' and is thus also incomprehensible.
+   *
+   * The documentation for `avar' appears correct, but Apple has no fonts
+   * with an `avar' table, so it is hard to test.
+   *
+   * Many thanks to John Jenkins (at Apple) in figuring this out.
+   *
+   *
+   * Apple's `kern' table has some references to tuple indices, but as
+   * there is no indication where these indices are defined, nor how to
+   * interpolate the kerning values (different tuples have different
+   * classes) this issue is ignored.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -67,14 +67,23 @@
                         : (stream)->limit
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /* some macros we need */
+#define FT_fdot14ToFixed( x )                \
+        ( (FT_Fixed)( (FT_ULong)(x) << 2 ) )
+#define FT_intToFixed( i )                    \
+        ( (FT_Fixed)( (FT_ULong)(i) << 16 ) )
+#define FT_fixedToInt( x )                                   \
+        ( (FT_Short)( ( (FT_UInt32)(x) + 0x8000U ) >> 16 ) )
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttgxvar
+#define FT_COMPONENT  ttgxvar
 
 
   /*************************************************************************/
@@ -86,12 +95,12 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro ALL_POINTS is used in `ft_var_readpackedpoints'.  It        */
-  /* indicates that there is a delta for every point without needing to    */
-  /* enumerate all of them.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro ALL_POINTS is used in `ft_var_readpackedpoints'.  It
+   * indicates that there is a delta for every point without needing to
+   * enumerate all of them.
+   */
 
   /* ensure that value `0' has the same width as a pointer */
 #define ALL_POINTS  (FT_UShort*)~(FT_PtrDist)0
@@ -101,29 +110,32 @@
 #define GX_PT_POINT_RUN_COUNT_MASK  0x7FU
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_readpackedpoints                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Read a set of points to which the following deltas will apply.     */
-  /*    Points are packed with a run length encoding.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream    :: The data stream.                                      */
-  /*                                                                       */
-  /*    size      :: The size of the table holding the data.               */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    point_cnt :: The number of points read.  A zero value means that   */
-  /*                 all points in the glyph will be affected, without     */
-  /*                 enumerating them individually.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    An array of FT_UShort containing the affected points or the        */
-  /*    special value ALL_POINTS.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_readpackedpoints
+   *
+   * @Description:
+   *   Read a set of points to which the following deltas will apply.
+   *   Points are packed with a run length encoding.
+   *
+   * @Input:
+   *   stream ::
+   *     The data stream.
+   *
+   *   size ::
+   *     The size of the table holding the data.
+   *
+   * @Output:
+   *   point_cnt ::
+   *     The number of points read.  A zero value means that
+   *     all points in the glyph will be affected, without
+   *     enumerating them individually.
+   *
+   * @Return:
+   *   An array of FT_UShort containing the affected points or the
+   *   special value ALL_POINTS.
+   */
   static FT_UShort*
   ft_var_readpackedpoints( FT_Stream  stream,
                            FT_ULong   size,
@@ -211,34 +223,41 @@
 #define GX_DT_DELTA_RUN_COUNT_MASK  0x3FU
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_readpackeddeltas                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Read a set of deltas.  These are packed slightly differently than  */
-  /*    points.  In particular there is no overall count.                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream    :: The data stream.                                      */
-  /*                                                                       */
-  /*    size      :: The size of the table holding the data.               */
-  /*                                                                       */
-  /*    delta_cnt :: The number of deltas to be read.                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    An array of FT_Short containing the deltas for the affected        */
-  /*    points.  (This only gets the deltas for one dimension.  It will    */
-  /*    generally be called twice, once for x, once for y.  When used in   */
-  /*    cvt table, it will only be called once.)                           */
-  /*                                                                       */
-  static FT_Short*
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_readpackeddeltas
+   *
+   * @Description:
+   *   Read a set of deltas.  These are packed slightly differently than
+   *   points.  In particular there is no overall count.
+   *
+   * @Input:
+   *   stream ::
+   *     The data stream.
+   *
+   *   size ::
+   *     The size of the table holding the data.
+   *
+   *   delta_cnt ::
+   *     The number of deltas to be read.
+   *
+   * @Return:
+   *   An array of FT_Fixed containing the deltas for the affected
+   *   points.  (This only gets the deltas for one dimension.  It will
+   *   generally be called twice, once for x, once for y.  When used in
+   *   cvt table, it will only be called once.)
+   *
+   *   We use FT_Fixed to avoid accumulation errors while summing up all
+   *   deltas (the rounding to integer values happens as the very last
+   *   step).
+   */
+  static FT_Fixed*
   ft_var_readpackeddeltas( FT_Stream  stream,
                            FT_ULong   size,
                            FT_UInt    delta_cnt )
   {
-    FT_Short  *deltas = NULL;
+    FT_Fixed  *deltas = NULL;
     FT_UInt    runcnt, cnt;
     FT_UInt    i, j;
     FT_Memory  memory = stream->memory;
@@ -272,13 +291,13 @@
       {
         /* `runcnt' shorts from the stack */
         for ( j = 0; j <= cnt && i < delta_cnt; j++ )
-          deltas[i++] = FT_GET_SHORT();
+          deltas[i++] = FT_intToFixed( FT_GET_SHORT() );
       }
       else
       {
         /* `runcnt' signed bytes from the stack */
         for ( j = 0; j <= cnt && i < delta_cnt; j++ )
-          deltas[i++] = FT_GET_CHAR();
+          deltas[i++] = FT_intToFixed( FT_GET_CHAR() );
       }
 
       if ( j <= cnt )
@@ -293,18 +312,19 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_load_avar                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parse the `avar' table if present.  It need not be, so we return   */
-  /*    nothing.                                                           */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face :: The font face.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_load_avar
+   *
+   * @Description:
+   *   Parse the `avar' table if present.  It need not be, so we return
+   *   nothing.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   */
   static void
   ft_var_load_avar( TT_Face  face )
   {
@@ -394,17 +414,6 @@
   }
 
 
-  /* some macros we need */
-#define FT_FIXED_ONE  ( (FT_Fixed)0x10000 )
-
-#define FT_fdot14ToFixed( x )                \
-        ( (FT_Fixed)( (FT_ULong)(x) << 2 ) )
-#define FT_intToFixed( i )                    \
-        ( (FT_Fixed)( (FT_ULong)(i) << 16 ) )
-#define FT_fixedToInt( x )                                   \
-        ( (FT_Short)( ( (FT_UInt32)(x) + 0x8000U ) >> 16 ) )
-
-
   static FT_Error
   ft_var_load_item_variation_store( TT_Face          face,
                                     FT_ULong         offset,
@@ -702,29 +711,30 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_load_hvvar                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    If `vertical' is zero, parse the `HVAR' table and set              */
-  /*    `blend->hvar_loaded' to TRUE.  On success, `blend->hvar_checked'   */
-  /*    is set to TRUE.                                                    */
-  /*                                                                       */
-  /*    If `vertical' is not zero, parse the `VVAR' table and set          */
-  /*    `blend->vvar_loaded' to TRUE.  On success, `blend->vvar_checked'   */
-  /*    is set to TRUE.                                                    */
-  /*                                                                       */
-  /*    Some memory may remain allocated on error; it is always freed in   */
-  /*    `tt_done_blend', however.                                          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face :: The font face.                                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_load_hvvar
+   *
+   * @Description:
+   *   If `vertical' is zero, parse the `HVAR' table and set
+   *   `blend->hvar_loaded' to TRUE.  On success, `blend->hvar_checked'
+   *   is set to TRUE.
+   *
+   *   If `vertical' is not zero, parse the `VVAR' table and set
+   *   `blend->vvar_loaded' to TRUE.  On success, `blend->vvar_checked'
+   *   is set to TRUE.
+   *
+   *   Some memory may remain allocated on error; it is always freed in
+   *   `tt_done_blend', however.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   ft_var_load_hvvar( TT_Face  face,
                      FT_Bool  vertical )
@@ -872,7 +882,7 @@
     /* outer loop steps through master designs to be blended */
     for ( master = 0; master < varData->regionIdxCount; master++ )
     {
-      FT_Fixed  scalar      = FT_FIXED_ONE;
+      FT_Fixed  scalar      = 0x10000L;
       FT_UInt   regionIndex = varData->regionIndices[master];
 
       GX_AxisCoords  axis = itemStore->varRegionList[regionIndex].axisList;
@@ -881,47 +891,43 @@
       /* inner loop steps through axes in this region */
       for ( j = 0; j < itemStore->axisCount; j++, axis++ )
       {
-        FT_Fixed  axisScalar;
-
-
         /* compute the scalar contribution of this axis; */
         /* ignore invalid ranges                         */
         if ( axis->startCoord > axis->peakCoord ||
              axis->peakCoord > axis->endCoord   )
-          axisScalar = FT_FIXED_ONE;
+          continue;
 
         else if ( axis->startCoord < 0 &&
                   axis->endCoord > 0   &&
                   axis->peakCoord != 0 )
-          axisScalar = FT_FIXED_ONE;
+          continue;
 
         /* peak of 0 means ignore this axis */
         else if ( axis->peakCoord == 0 )
-          axisScalar = FT_FIXED_ONE;
+          continue;
 
-        /* ignore this region if coords are out of range */
-        else if ( face->blend->normalizedcoords[j] < axis->startCoord ||
-                  face->blend->normalizedcoords[j] > axis->endCoord   )
-          axisScalar = 0;
+        else if ( face->blend->normalizedcoords[j] == axis->peakCoord )
+          continue;
 
-        /* calculate a proportional factor */
-        else
+        /* ignore this region if coords are out of range */
+        else if ( face->blend->normalizedcoords[j] <= axis->startCoord ||
+                  face->blend->normalizedcoords[j] >= axis->endCoord   )
         {
-          if ( face->blend->normalizedcoords[j] == axis->peakCoord )
-            axisScalar = FT_FIXED_ONE;
-          else if ( face->blend->normalizedcoords[j] < axis->peakCoord )
-            axisScalar =
-              FT_DivFix( face->blend->normalizedcoords[j] - axis->startCoord,
-                         axis->peakCoord - axis->startCoord );
-          else
-            axisScalar =
-              FT_DivFix( axis->endCoord - face->blend->normalizedcoords[j],
-                         axis->endCoord - axis->peakCoord );
+          scalar = 0;
+          break;
         }
 
-        /* take product of all the axis scalars */
-        scalar = FT_MulFix( scalar, axisScalar );
-
+        /* cumulative product of all the axis scalars */
+        else if ( face->blend->normalizedcoords[j] < axis->peakCoord )
+          scalar =
+            FT_MulDiv( scalar,
+                       face->blend->normalizedcoords[j] - axis->startCoord,
+                       axis->peakCoord - axis->startCoord );
+        else
+          scalar =
+            FT_MulDiv( scalar,
+                       axis->endCoord - face->blend->normalizedcoords[j],
+                       axis->endCoord - axis->peakCoord );
       } /* per-axis loop */
 
       /* get the scaled delta for this region */
@@ -937,25 +943,29 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_hvadvance_adjust                                                */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Apply `HVAR' advance width or `VVAR' advance height adjustment of  */
-  /*    a given glyph.                                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    gindex   :: The glyph index.                                       */
-  /*                                                                       */
-  /*    vertical :: If set, handle `VVAR' table.                           */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face     :: The font face.                                         */
-  /*                                                                       */
-  /*    adelta   :: Points to width or height value that gets modified.    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_hvadvance_adjust
+   *
+   * @Description:
+   *   Apply `HVAR' advance width or `VVAR' advance height adjustment of
+   *   a given glyph.
+   *
+   * @Input:
+   *   gindex ::
+   *     The glyph index.
+   *
+   *   vertical ::
+   *     If set, handle `VVAR' table.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   *
+   *   adelta ::
+   *     Points to width or height value that gets modified.
+   */
   static FT_Error
   tt_hvadvance_adjust( TT_Face  face,
                        FT_UInt  gindex,
@@ -1151,20 +1161,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_load_mvar                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parse the `MVAR' table.                                            */
-  /*                                                                       */
-  /*    Some memory may remain allocated on error; it is always freed in   */
-  /*    `tt_done_blend', however.                                          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face :: The font face.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_load_mvar
+   *
+   * @Description:
+   *   Parse the `MVAR' table.
+   *
+   *   Some memory may remain allocated on error; it is always freed in
+   *   `tt_done_blend', however.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   */
   static void
   ft_var_load_mvar( TT_Face  face )
   {
@@ -1297,22 +1308,26 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_apply_mvar                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Apply `MVAR' table adjustments.                                    */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face :: The font face.                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_apply_mvar
+   *
+   * @Description:
+   *   Apply `MVAR' table adjustments.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   */
   FT_LOCAL_DEF( void )
   tt_apply_mvar( TT_Face  face )
   {
     GX_Blend  blend = face->blend;
     GX_Value  value, limit;
+    FT_Short  mvar_hasc_delta = 0;
+    FT_Short  mvar_hdsc_delta = 0;
+    FT_Short  mvar_hlgp_delta = 0;
 
 
     if ( !( face->variation_support & TT_FACE_FLAG_VAR_MVAR ) )
@@ -1347,6 +1362,14 @@
         /* since we handle both signed and unsigned values as FT_Short, */
         /* ensure proper overflow arithmetic                            */
         *p = (FT_Short)( value->unmodified + (FT_Short)delta );
+
+        /* Treat hasc, hdsc and hlgp specially, see below. */
+        if ( value->tag == MVAR_TAG_HASC )
+          mvar_hasc_delta = (FT_Short)delta;
+        else if ( value->tag == MVAR_TAG_HDSC )
+          mvar_hdsc_delta = (FT_Short)delta;
+        else if ( value->tag == MVAR_TAG_HLGP )
+          mvar_hlgp_delta = (FT_Short)delta;
       }
     }
 
@@ -1354,25 +1377,40 @@
     {
       FT_Face  root = &face->root;
 
-
-      if ( face->os2.version != 0xFFFFU )
-      {
-        if ( face->os2.sTypoAscender || face->os2.sTypoDescender )
-        {
-          root->ascender  = face->os2.sTypoAscender;
-          root->descender = face->os2.sTypoDescender;
-
-          root->height = root->ascender - root->descender +
-                         face->os2.sTypoLineGap;
-        }
-        else
-        {
-          root->ascender  =  (FT_Short)face->os2.usWinAscent;
-          root->descender = -(FT_Short)face->os2.usWinDescent;
-
-          root->height = root->ascender - root->descender;
-        }
-      }
+      /*
+       * Apply the deltas of hasc, hdsc and hlgp to the FT_Face's ascender,
+       * descender and height attributes, no matter how they were originally
+       * computed.
+       *
+       * (Code that ignores those and accesses the font's metrics values
+       * directly is already served by the delta application code above.)
+       *
+       * The MVAR table supports variations for both typo and win metrics.
+       * According to Behdad Esfahbod, the thinking of the working group was
+       * that no one uses win metrics anymore for setting line metrics (the
+       * specification even calls these metrics "horizontal clipping
+       * ascent/descent", probably for their role on the Windows platform in
+       * computing clipping boxes), and new fonts should use typo metrics, so
+       * typo deltas should be applied to whatever sfnt_load_face decided the
+       * line metrics should be.
+       *
+       * Before, the following led to different line metrics between default
+       * outline and instances, visible when e.g. the default outlines were
+       * used as the regular face and instances for everything else:
+       *
+       * 1. sfnt_load_face applied the hhea metrics by default.
+       * 2. This code later applied the typo metrics by default, regardless of
+       *    whether they were actually changed or the font had the OS/2 table's
+       *    fsSelection's bit 7 (USE_TYPO_METRICS) set.
+       */
+      FT_Short  current_line_gap = root->height - root->ascender +
+                                   root->descender;
+
+
+      root->ascender  = root->ascender + mvar_hasc_delta;
+      root->descender = root->descender + mvar_hdsc_delta;
+      root->height    = root->ascender - root->descender +
+                        current_line_gap + mvar_hlgp_delta;
 
       root->underline_position  = face->postscript.underlinePosition -
                                   face->postscript.underlineThickness / 2;
@@ -1400,21 +1438,22 @@
   } GX_GVar_Head;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_load_gvar                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Parse the `gvar' table if present.  If `fvar' is there, `gvar' had */
-  /*    better be there too.                                               */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face :: The font face.                                             */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_load_gvar
+   *
+   * @Description:
+   *   Parse the `gvar' table if present.  If `fvar' is there, `gvar' had
+   *   better be there too.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   ft_var_load_gvar( TT_Face  face )
   {
@@ -1512,28 +1551,55 @@
 
     if ( gvar_head.flags & 1 )
     {
+      FT_ULong  limit = gvar_start + table_len;
+
+
       /* long offsets (one more offset than glyphs, to mark size of last) */
       if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 4L ) )
         goto Exit;
 
       for ( i = 0; i <= blend->gv_glyphcnt; i++ )
+      {
         blend->glyphoffsets[i] = offsetToData + FT_GET_ULONG();
-
-      FT_FRAME_EXIT();
+        /* use `>', not `>=' */
+        if ( blend->glyphoffsets[i] > limit )
+        {
+          FT_TRACE2(( "ft_var_load_gvar:"
+                      " invalid glyph variation data offset for index %d\n",
+                      i ));
+          error = FT_THROW( Invalid_Table );
+          break;
+        }
+      }
     }
     else
     {
+      FT_ULong  limit = gvar_start + table_len;
+
+
       /* short offsets (one more offset than glyphs, to mark size of last) */
       if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 2L ) )
         goto Exit;
 
       for ( i = 0; i <= blend->gv_glyphcnt; i++ )
+      {
         blend->glyphoffsets[i] = offsetToData + FT_GET_USHORT() * 2;
-                                               /* XXX: Undocumented: `*2'! */
-
-      FT_FRAME_EXIT();
+        /* use `>', not `>=' */
+        if ( blend->glyphoffsets[i] > limit )
+        {
+          FT_TRACE2(( "ft_var_load_gvar:"
+                      " invalid glyph variation data offset for index %d\n",
+                      i ));
+          error = FT_THROW( Invalid_Table );
+          break;
+        }
+      }
     }
 
+    FT_FRAME_EXIT();
+    if ( error )
+      goto Exit;
+
     if ( blend->tuplecount != 0 )
     {
       if ( FT_NEW_ARRAY( blend->tuplecoords,
@@ -1567,33 +1633,38 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    ft_var_apply_tuple                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Figure out whether a given tuple (design) applies to the current   */
-  /*    blend, and if so, what is the scaling factor.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    blend           :: The current blend of the font.                  */
-  /*                                                                       */
-  /*    tupleIndex      :: A flag saying whether this is an intermediate   */
-  /*                       tuple or not.                                   */
-  /*                                                                       */
-  /*    tuple_coords    :: The coordinates of the tuple in normalized axis */
-  /*                       units.                                          */
-  /*                                                                       */
-  /*    im_start_coords :: The initial coordinates where this tuple starts */
-  /*                       to apply (for intermediate coordinates).        */
-  /*                                                                       */
-  /*    im_end_coords   :: The final coordinates after which this tuple no */
-  /*                       longer applies (for intermediate coordinates).  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    An FT_Fixed value containing the scaling factor.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   ft_var_apply_tuple
+   *
+   * @Description:
+   *   Figure out whether a given tuple (design) applies to the current
+   *   blend, and if so, what is the scaling factor.
+   *
+   * @Input:
+   *   blend ::
+   *     The current blend of the font.
+   *
+   *   tupleIndex ::
+   *     A flag saying whether this is an intermediate
+   *     tuple or not.
+   *
+   *   tuple_coords ::
+   *     The coordinates of the tuple in normalized axis
+   *     units.
+   *
+   *   im_start_coords ::
+   *     The initial coordinates where this tuple starts
+   *     to apply (for intermediate coordinates).
+   *
+   *   im_end_coords ::
+   *     The final coordinates after which this tuple no
+   *     longer applies (for intermediate coordinates).
+   *
+   * @Return:
+   *   An FT_Fixed value containing the scaling factor.
+   */
   static FT_Fixed
   ft_var_apply_tuple( GX_Blend   blend,
                       FT_UShort  tupleIndex,
@@ -1607,13 +1678,8 @@
 
     for ( i = 0; i < blend->num_axis; i++ )
     {
-      FT_TRACE6(( "    axis coordinate %d (%.5f):\n",
+      FT_TRACE6(( "    axis %d coordinate %.5f:\n",
                   i, blend->normalizedcoords[i] / 65536.0 ));
-      if ( !( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) )
-        FT_TRACE6(( "      intermediate coordinates %d (%.5f, %.5f):\n",
-                    i,
-                    im_start_coords[i] / 65536.0,
-                    im_end_coords[i] / 65536.0 ));
 
       /* It's not clear why (for intermediate tuples) we don't need     */
       /* to check against start/end -- the documentation says we don't. */
@@ -1622,7 +1688,7 @@
 
       if ( tuple_coords[i] == 0 )
       {
-        FT_TRACE6(( "      tuple coordinate is zero, ignored\n", i ));
+        FT_TRACE6(( "      tuple coordinate is zero, ignore\n", i ));
         continue;
       }
 
@@ -1635,7 +1701,7 @@
 
       if ( blend->normalizedcoords[i] == tuple_coords[i] )
       {
-        FT_TRACE6(( "      tuple coordinate value %.5f fits perfectly\n",
+        FT_TRACE6(( "      tuple coordinate %.5f fits perfectly\n",
                     tuple_coords[i] / 65536.0 ));
         /* `apply' does not change */
         continue;
@@ -1648,13 +1714,13 @@
         if ( blend->normalizedcoords[i] < FT_MIN( 0, tuple_coords[i] ) ||
              blend->normalizedcoords[i] > FT_MAX( 0, tuple_coords[i] ) )
         {
-          FT_TRACE6(( "      tuple coordinate value %.5f is exceeded, stop\n",
+          FT_TRACE6(( "      tuple coordinate %.5f is exceeded, stop\n",
                       tuple_coords[i] / 65536.0 ));
           apply = 0;
           break;
         }
 
-        FT_TRACE6(( "      tuple coordinate value %.5f fits\n",
+        FT_TRACE6(( "      tuple coordinate %.5f fits\n",
                     tuple_coords[i] / 65536.0 ));
         apply = FT_MulDiv( apply,
                            blend->normalizedcoords[i],
@@ -1664,10 +1730,10 @@
       {
         /* intermediate tuple */
 
-        if ( blend->normalizedcoords[i] < im_start_coords[i] ||
-             blend->normalizedcoords[i] > im_end_coords[i]   )
+        if ( blend->normalizedcoords[i] <= im_start_coords[i] ||
+             blend->normalizedcoords[i] >= im_end_coords[i]   )
         {
-          FT_TRACE6(( "      intermediate tuple range [%.5f;%.5f] is exceeded,"
+          FT_TRACE6(( "      intermediate tuple range ]%.5f;%.5f[ is exceeded,"
                       " stop\n",
                       im_start_coords[i] / 65536.0,
                       im_end_coords[i] / 65536.0 ));
@@ -1675,25 +1741,17 @@
           break;
         }
 
-        else if ( blend->normalizedcoords[i] < tuple_coords[i] )
-        {
-          FT_TRACE6(( "      intermediate tuple range [%.5f;%.5f] fits\n",
-                      im_start_coords[i] / 65536.0,
-                      im_end_coords[i] / 65536.0 ));
+        FT_TRACE6(( "      intermediate tuple range ]%.5f;%.5f[ fits\n",
+                    im_start_coords[i] / 65536.0,
+                    im_end_coords[i] / 65536.0 ));
+        if ( blend->normalizedcoords[i] < tuple_coords[i] )
           apply = FT_MulDiv( apply,
                              blend->normalizedcoords[i] - im_start_coords[i],
                              tuple_coords[i] - im_start_coords[i] );
-        }
-
         else
-        {
-          FT_TRACE6(( "      intermediate tuple range [%.5f;%.5f] fits\n",
-                      im_start_coords[i] / 65536.0,
-                      im_end_coords[i] / 65536.0 ));
           apply = FT_MulDiv( apply,
                              im_end_coords[i] - blend->normalizedcoords[i],
                              im_end_coords[i] - tuple_coords[i] );
-        }
       }
     }
 
@@ -1756,11 +1814,11 @@
       }
 
       if ( coord < a->def )
-        normalized[i] = -FT_DivFix( coord - a->def,
-                                    a->minimum - a->def );
+        normalized[i] = -FT_DivFix( SUB_LONG( coord, a->def ),
+                                    SUB_LONG( a->minimum, a->def ) );
       else if ( coord > a->def )
-        normalized[i] = FT_DivFix( coord - a->def,
-                                   a->maximum - a->def );
+        normalized[i] = FT_DivFix( SUB_LONG( coord, a->def ),
+                                   SUB_LONG( a->maximum, a->def ) );
       else
         normalized[i] = 0;
     }
@@ -1910,27 +1968,29 @@
   } GX_FVar_Axis;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Get_MM_Var                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Check that the font's `fvar' table is valid, parse it, and return  */
-  /*    those data.  It also loads (and parses) the `MVAR' table, if       */
-  /*    possible.                                                          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: The font face.                                           */
-  /*              TT_Get_MM_Var initializes the blend structure.           */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    master :: The `fvar' data (must be freed by caller).  Can be NULL, */
-  /*              which makes this function simply load MM support.        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Get_MM_Var
+   *
+   * @Description:
+   *   Check that the font's `fvar' table is valid, parse it, and return
+   *   those data.  It also loads (and parses) the `MVAR' table, if
+   *   possible.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   *     TT_Get_MM_Var initializes the blend structure.
+   *
+   * @Output:
+   *   master ::
+   *     The `fvar' data (must be freed by caller).  Can be NULL,
+   *     which makes this function simply load MM support.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Get_MM_Var( TT_Face      face,
                  FT_MM_Var*  *master )
@@ -2507,11 +2567,14 @@
 
       if ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) )
       {
-        FT_UInt  idx = (FT_UInt)face->root.face_index >> 16;
+        FT_UInt  instance_index = (FT_UInt)face->root.face_index >> 16;
 
 
         c = blend->normalizedcoords + i;
-        n = blend->normalized_stylecoords + idx * mmvar->num_axis + i;
+        n = blend->normalized_stylecoords            +
+            ( instance_index - 1 ) * mmvar->num_axis +
+            i;
+
         for ( j = i; j < mmvar->num_axis; j++, n++, c++ )
           if ( *c != *n )
             have_diff = 1;
@@ -2526,7 +2589,11 @@
 
       /* return value -1 indicates `no change' */
       if ( !have_diff )
+      {
+        face->doblend = TRUE;
+
         return -1;
+      }
 
       for ( ; i < mmvar->num_axis; i++ )
       {
@@ -2590,31 +2657,34 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Set_MM_Blend                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set the blend (normalized) coordinates for this instance of the    */
-  /*    font.  Check that the `gvar' table is reasonable and does some     */
-  /*    initial preparation.                                               */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The font.                                            */
-  /*                  Initialize the blend structure with `gvar' data.     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    num_coords :: The number of available coordinates.  If it is       */
-  /*                  larger than the number of axes, ignore the excess    */
-  /*                  values.  If it is smaller than the number of axes,   */
-  /*                  use the default value (0) for the remaining axes.    */
-  /*                                                                       */
-  /*    coords     :: An array of `num_coords', each between [-1,1].       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Set_MM_Blend
+   *
+   * @Description:
+   *   Set the blend (normalized) coordinates for this instance of the
+   *   font.  Check that the `gvar' table is reasonable and does some
+   *   initial preparation.
+   *
+   * @InOut:
+   *   face ::
+   *     The font.
+   *     Initialize the blend structure with `gvar' data.
+   *
+   * @Input:
+   *   num_coords ::
+   *     The number of available coordinates.  If it is
+   *     larger than the number of axes, ignore the excess
+   *     values.  If it is smaller than the number of axes,
+   *     use the default value (0) for the remaining axes.
+   *
+   *   coords ::
+   *     An array of `num_coords', each between [-1,1].
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Set_MM_Blend( TT_Face    face,
                    FT_UInt    num_coords,
@@ -2636,29 +2706,32 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Get_MM_Blend                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the blend (normalized) coordinates for this instance of the    */
-  /*    font.                                                              */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The font.                                            */
-  /*                  Initialize the blend structure with `gvar' data.     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    num_coords :: The number of available coordinates.  If it is       */
-  /*                  larger than the number of axes, set the excess       */
-  /*                  values to 0.                                         */
-  /*                                                                       */
-  /*    coords     :: An array of `num_coords', each between [-1,1].       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Get_MM_Blend
+   *
+   * @Description:
+   *   Get the blend (normalized) coordinates for this instance of the
+   *   font.
+   *
+   * @InOut:
+   *   face ::
+   *     The font.
+   *     Initialize the blend structure with `gvar' data.
+   *
+   * @Input:
+   *   num_coords ::
+   *     The number of available coordinates.  If it is
+   *     larger than the number of axes, set the excess
+   *     values to 0.
+   *
+   *   coords ::
+   *     An array of `num_coords', each between [-1,1].
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Get_MM_Blend( TT_Face    face,
                    FT_UInt    num_coords,
@@ -2712,31 +2785,34 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Set_Var_Design                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set the coordinates for the instance, measured in the user         */
-  /*    coordinate system.  Parse the `avar' table (if present) to convert */
-  /*    from user to normalized coordinates.                               */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The font face.                                       */
-  /*                  Initialize the blend struct with `gvar' data.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    num_coords :: The number of available coordinates.  If it is       */
-  /*                  larger than the number of axes, ignore the excess    */
-  /*                  values.  If it is smaller than the number of axes,   */
-  /*                  use the default values for the remaining axes.       */
-  /*                                                                       */
-  /*    coords     :: A coordinate array with `num_coords' elements.       */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Set_Var_Design
+   *
+   * @Description:
+   *   Set the coordinates for the instance, measured in the user
+   *   coordinate system.  Parse the `avar' table (if present) to convert
+   *   from user to normalized coordinates.
+   *
+   * @InOut:
+   *   face ::
+   *     The font face.
+   *     Initialize the blend struct with `gvar' data.
+   *
+   * @Input:
+   *   num_coords ::
+   *     The number of available coordinates.  If it is
+   *     larger than the number of axes, ignore the excess
+   *     values.  If it is smaller than the number of axes,
+   *     use the default values for the remaining axes.
+   *
+   *   coords ::
+   *     A coordinate array with `num_coords' elements.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Set_Var_Design( TT_Face    face,
                      FT_UInt    num_coords,
@@ -2854,28 +2930,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Get_Var_Design                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Get the design coordinates of the currently selected interpolated  */
-  /*    font.                                                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face       :: A handle to the source face.                         */
-  /*                                                                       */
-  /*    num_coords :: The number of design coordinates to retrieve.  If it */
-  /*                  is larger than the number of axes, set the excess    */
-  /*                  values to~0.                                         */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    coords     :: The design coordinates array.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Get_Var_Design
+   *
+   * @Description:
+   *   Get the design coordinates of the currently selected interpolated
+   *   font.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   num_coords ::
+   *     The number of design coordinates to retrieve.  If it
+   *     is larger than the number of axes, set the excess
+   *     values to~0.
+   *
+   * @Output:
+   *   coords ::
+   *     The design coordinates array.
+   *
+   * @Return:
+   *   FreeType error code.  0~means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Get_Var_Design( TT_Face    face,
                      FT_UInt    num_coords,
@@ -2929,24 +3008,26 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Set_Named_Instance                                              */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Set the given named instance, also resetting any further           */
-  /*    variation.                                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face           :: A handle to the source face.                     */
-  /*                                                                       */
-  /*    instance_index :: The instance index, starting with value 1.       */
-  /*                      Value 0 indicates to not use an instance.        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0~means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Set_Named_Instance
+   *
+   * @Description:
+   *   Set the given named instance, also resetting any further
+   *   variation.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face.
+   *
+   *   instance_index ::
+   *     The instance index, starting with value 1.
+   *     Value 0 indicates to not use an instance.
+   *
+   * @Return:
+   *   FreeType error code.  0~means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Set_Named_Instance( TT_Face  face,
                          FT_UInt  instance_index )
@@ -3022,48 +3103,60 @@
   /*************************************************************************/
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_vary_cvt                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Modify the loaded cvt table according to the `cvar' table and the  */
-  /*    font's blend.                                                      */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /*    Most errors are ignored.  It is perfectly valid not to have a      */
-  /*    `cvar' table even if there is a `gvar' and `fvar' table.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_vary_cvt
+   *
+   * @Description:
+   *   Modify the loaded cvt table according to the `cvar' table and the
+   *   font's blend.
+   *
+   * @InOut:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @Input:
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   *   Most errors are ignored.  It is perfectly valid not to have a
+   *   `cvar' table even if there is a `gvar' and `fvar' table.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_vary_cvt( TT_Face    face,
                     FT_Stream  stream )
   {
-    FT_Error    error;
-    FT_Memory   memory = stream->memory;
-    FT_ULong    table_start;
-    FT_ULong    table_len;
-    FT_UInt     tupleCount;
-    FT_ULong    offsetToData;
-    FT_ULong    here;
-    FT_UInt     i, j;
-    FT_Fixed*   tuple_coords    = NULL;
-    FT_Fixed*   im_start_coords = NULL;
-    FT_Fixed*   im_end_coords   = NULL;
-    GX_Blend    blend           = face->blend;
-    FT_UInt     point_count, spoint_count = 0;
+    FT_Error   error;
+    FT_Memory  memory = stream->memory;
+
+    FT_ULong  table_start;
+    FT_ULong  table_len;
+
+    FT_UInt   tupleCount;
+    FT_ULong  offsetToData;
+
+    FT_ULong  here;
+    FT_UInt   i, j;
+
+    FT_Fixed*  tuple_coords    = NULL;
+    FT_Fixed*  im_start_coords = NULL;
+    FT_Fixed*  im_end_coords   = NULL;
+
+    GX_Blend  blend = face->blend;
+
+    FT_UInt  point_count;
+    FT_UInt  spoint_count = 0;
+
     FT_UShort*  sharedpoints = NULL;
     FT_UShort*  localpoints  = NULL;
     FT_UShort*  points;
-    FT_Short*   deltas;
+
+    FT_Fixed*  deltas     = NULL;
+    FT_Fixed*  cvt_deltas = NULL;
 
 
     FT_TRACE2(( "CVAR " ));
@@ -3146,11 +3239,14 @@
     }
 
     FT_TRACE5(( "cvar: there %s %d tuple%s:\n",
-                ( tupleCount & 0xFFF ) == 1 ? "is" : "are",
-                tupleCount & 0xFFF,
-                ( tupleCount & 0xFFF ) == 1 ? "" : "s" ));
+                ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) == 1 ? "is" : "are",
+                tupleCount & GX_TC_TUPLE_COUNT_MASK,
+                ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) == 1 ? "" : "s" ));
+
+    if ( FT_NEW_ARRAY( cvt_deltas, face->cvt_size ) )
+      goto FExit;
 
-    for ( i = 0; i < ( tupleCount & 0xFFF ); i++ )
+    for ( i = 0; i < ( tupleCount & GX_TC_TUPLE_COUNT_MASK ); i++ )
     {
       FT_UInt   tupleDataSize;
       FT_UInt   tupleIndex;
@@ -3174,13 +3270,25 @@
                     " invalid tuple index\n" ));
 
         error = FT_THROW( Invalid_Table );
-        goto Exit;
+        goto FExit;
       }
       else
+      {
+        if ( !blend->tuplecoords )
+        {
+          FT_TRACE2(( "tt_face_vary_cvt:"
+                      " no valid tuple coordinates available\n" ));
+
+          error = FT_THROW( Invalid_Table );
+          goto FExit;
+        }
+
         FT_MEM_COPY(
           tuple_coords,
-          &blend->tuplecoords[( tupleIndex & 0xFFF ) * blend->num_axis],
+          blend->tuplecoords +
+            ( tupleIndex & GX_TI_TUPLE_INDEX_MASK ) * blend->num_axis,
           blend->num_axis * sizeof ( FT_Fixed ) );
+      }
 
       if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE )
       {
@@ -3241,17 +3349,21 @@
         /* this means that there are deltas for every entry in cvt */
         for ( j = 0; j < face->cvt_size; j++ )
         {
-          FT_Long  orig_cvt = face->cvt[j];
+          FT_Fixed  old_cvt_delta;
 
 
-          face->cvt[j] = (FT_Short)( orig_cvt +
-                                     FT_MulFix( deltas[j], apply ) );
+          old_cvt_delta = cvt_deltas[j];
+          cvt_deltas[j] = old_cvt_delta + FT_MulFix( deltas[j], apply );
 
 #ifdef FT_DEBUG_LEVEL_TRACE
-          if ( orig_cvt != face->cvt[j] )
+          if ( old_cvt_delta != cvt_deltas[j] )
           {
-            FT_TRACE7(( "      %d: %d -> %d\n",
-                        j, orig_cvt, face->cvt[j] ));
+            FT_TRACE7(( "      %d: %f -> %f\n",
+                        j,
+                        ( FT_intToFixed( face->cvt[j] ) +
+                          old_cvt_delta ) / 65536.0,
+                        ( FT_intToFixed( face->cvt[j] ) +
+                          cvt_deltas[j] ) / 65536.0 ));
             count++;
           }
 #endif
@@ -3274,23 +3386,26 @@
 
         for ( j = 0; j < point_count; j++ )
         {
-          int      pindex;
-          FT_Long  orig_cvt;
+          int       pindex;
+          FT_Fixed  old_cvt_delta;
 
 
           pindex = points[j];
           if ( (FT_ULong)pindex >= face->cvt_size )
             continue;
 
-          orig_cvt          = face->cvt[pindex];
-          face->cvt[pindex] = (FT_Short)( orig_cvt +
-                                          FT_MulFix( deltas[j], apply ) );
+          old_cvt_delta      = cvt_deltas[pindex];
+          cvt_deltas[pindex] = old_cvt_delta + FT_MulFix( deltas[j], apply );
 
 #ifdef FT_DEBUG_LEVEL_TRACE
-          if ( orig_cvt != face->cvt[pindex] )
+          if ( old_cvt_delta != cvt_deltas[pindex] )
           {
-            FT_TRACE7(( "      %d: %d -> %d\n",
-                        pindex, orig_cvt, face->cvt[pindex] ));
+            FT_TRACE7(( "      %d: %f -> %f\n",
+                        pindex,
+                        ( FT_intToFixed( face->cvt[pindex] ) +
+                          old_cvt_delta ) / 65536.0,
+                        ( FT_intToFixed( face->cvt[pindex] ) +
+                          cvt_deltas[pindex] ) / 65536.0 ));
             count++;
           }
 #endif
@@ -3313,6 +3428,9 @@
 
     FT_TRACE5(( "\n" ));
 
+    for ( i = 0; i < face->cvt_size; i++ )
+      face->cvt[i] += FT_fixedToInt( cvt_deltas[i] );
+
   FExit:
     FT_FRAME_EXIT();
 
@@ -3322,6 +3440,7 @@
     FT_FREE( tuple_coords );
     FT_FREE( im_start_coords );
     FT_FREE( im_end_coords );
+    FT_FREE( cvt_deltas );
 
     return error;
   }
@@ -3367,9 +3486,8 @@
   /* between `p1' and `p2', using `ref1' and `ref2' as the reference */
   /* point indices.                                                  */
 
-  /* modeled after `af_iup_interp', `_iup_worker_interpolate', and */
-  /* `Ins_IUP'                                                     */
-
+  /* modeled after `af_iup_interp', `_iup_worker_interpolate', and   */
+  /* `Ins_IUP' with spec differences in handling ill-defined cases.  */
   static void
   tt_delta_interpolate( int         p1,
                         int         p2,
@@ -3528,56 +3646,72 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Vary_Apply_Glyph_Deltas                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Apply the appropriate deltas to the current glyph.                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to the target face object.                 */
-  /*                                                                       */
-  /*    glyph_index :: The index of the glyph being modified.              */
-  /*                                                                       */
-  /*    n_points    :: The number of the points in the glyph, including    */
-  /*                   phantom points.                                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    outline     :: The outline to change.                              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Vary_Apply_Glyph_Deltas
+   *
+   * @Description:
+   *   Apply the appropriate deltas to the current glyph.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   glyph_index ::
+   *     The index of the glyph being modified.
+   *
+   *   n_points ::
+   *     The number of the points in the glyph, including
+   *     phantom points.
+   *
+   * @InOut:
+   *   outline ::
+   *     The outline to change.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Vary_Apply_Glyph_Deltas( TT_Face      face,
                               FT_UInt      glyph_index,
                               FT_Outline*  outline,
                               FT_UInt      n_points )
   {
-    FT_Stream   stream = face->root.stream;
-    FT_Memory   memory = stream->memory;
-    GX_Blend    blend  = face->blend;
+    FT_Error   error;
+    FT_Stream  stream = face->root.stream;
+    FT_Memory  memory = stream->memory;
 
-    FT_Vector*  points_org = NULL;
-    FT_Vector*  points_out = NULL;
+    FT_Vector*  points_org = NULL;  /* coordinates in 16.16 format */
+    FT_Vector*  points_out = NULL;  /* coordinates in 16.16 format */
     FT_Bool*    has_delta  = NULL;
 
-    FT_Error    error;
-    FT_ULong    glyph_start;
-    FT_UInt     tupleCount;
-    FT_ULong    offsetToData;
-    FT_ULong    here;
-    FT_UInt     i, j;
-    FT_Fixed*   tuple_coords    = NULL;
-    FT_Fixed*   im_start_coords = NULL;
-    FT_Fixed*   im_end_coords   = NULL;
-    FT_UInt     point_count, spoint_count = 0;
+    FT_ULong  glyph_start;
+
+    FT_UInt   tupleCount;
+    FT_ULong  offsetToData;
+    FT_ULong  dataSize;
+
+    FT_ULong  here;
+    FT_UInt   i, j;
+
+    FT_Fixed*  tuple_coords    = NULL;
+    FT_Fixed*  im_start_coords = NULL;
+    FT_Fixed*  im_end_coords   = NULL;
+
+    GX_Blend  blend = face->blend;
+
+    FT_UInt  point_count;
+    FT_UInt  spoint_count = 0;
+
     FT_UShort*  sharedpoints = NULL;
     FT_UShort*  localpoints  = NULL;
     FT_UShort*  points;
-    FT_Short    *deltas_x, *deltas_y;
+
+    FT_Fixed*  deltas_x       = NULL;
+    FT_Fixed*  deltas_y       = NULL;
+    FT_Fixed*  point_deltas_x = NULL;
+    FT_Fixed*  point_deltas_y = NULL;
 
 
     if ( !face->doblend || !blend )
@@ -3597,9 +3731,11 @@
          FT_NEW_ARRAY( has_delta, n_points )  )
       goto Fail1;
 
-    if ( FT_STREAM_SEEK( blend->glyphoffsets[glyph_index] )   ||
-         FT_FRAME_ENTER( blend->glyphoffsets[glyph_index + 1] -
-                           blend->glyphoffsets[glyph_index] ) )
+    dataSize = blend->glyphoffsets[glyph_index + 1] -
+                 blend->glyphoffsets[glyph_index];
+
+    if ( FT_STREAM_SEEK( blend->glyphoffsets[glyph_index] ) ||
+         FT_FRAME_ENTER( dataSize )                         )
       goto Fail1;
 
     glyph_start = FT_Stream_FTell( stream );
@@ -3615,8 +3751,8 @@
     offsetToData = FT_GET_USHORT();
 
     /* rough sanity test */
-    if ( offsetToData + ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) * 4 >
-           blend->gvar_size )
+    if ( offsetToData > dataSize                                ||
+         ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) * 4 > dataSize )
     {
       FT_TRACE2(( "TT_Vary_Apply_Glyph_Deltas:"
                   " invalid glyph variation array header\n" ));
@@ -3646,8 +3782,15 @@
                 tupleCount & GX_TC_TUPLE_COUNT_MASK,
                 ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) == 1 ? "" : "s" ));
 
+    if ( FT_NEW_ARRAY( point_deltas_x, n_points ) ||
+         FT_NEW_ARRAY( point_deltas_y, n_points ) )
+      goto Fail3;
+
     for ( j = 0; j < n_points; j++ )
-      points_org[j] = outline->points[j];
+    {
+      points_org[j].x = FT_intToFixed( outline->points[j].x );
+      points_org[j].y = FT_intToFixed( outline->points[j].y );
+    }
 
     for ( i = 0; i < ( tupleCount & GX_TC_TUPLE_COUNT_MASK ); i++ )
     {
@@ -3673,12 +3816,13 @@
                     " invalid tuple index\n" ));
 
         error = FT_THROW( Invalid_Table );
-        goto Fail2;
+        goto Fail3;
       }
       else
         FT_MEM_COPY(
           tuple_coords,
-          &blend->tuplecoords[( tupleIndex & 0xFFF ) * blend->num_axis],
+          blend->tuplecoords +
+            ( tupleIndex & GX_TI_TUPLE_INDEX_MASK ) * blend->num_axis,
           blend->num_axis * sizeof ( FT_Fixed ) );
 
       if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE )
@@ -3742,14 +3886,17 @@
         /* this means that there are deltas for every point in the glyph */
         for ( j = 0; j < n_points; j++ )
         {
-          FT_Pos  delta_x = FT_MulFix( deltas_x[j], apply );
-          FT_Pos  delta_y = FT_MulFix( deltas_y[j], apply );
+          FT_Fixed  old_point_delta_x = point_deltas_x[j];
+          FT_Fixed  old_point_delta_y = point_deltas_y[j];
+
+          FT_Fixed  point_delta_x = FT_MulFix( deltas_x[j], apply );
+          FT_Fixed  point_delta_y = FT_MulFix( deltas_y[j], apply );
 
 
           if ( j < n_points - 4 )
           {
-            outline->points[j].x += delta_x;
-            outline->points[j].y += delta_y;
+            point_deltas_x[j] = old_point_delta_x + point_delta_x;
+            point_deltas_y[j] = old_point_delta_y + point_delta_y;
           }
           else
           {
@@ -3759,33 +3906,37 @@
             if ( j == ( n_points - 4 )        &&
                  !( face->variation_support &
                     TT_FACE_FLAG_VAR_LSB    ) )
-              outline->points[j].x += delta_x;
+              point_deltas_x[j] = old_point_delta_x + point_delta_x;
 
             else if ( j == ( n_points - 3 )          &&
                       !( face->variation_support   &
                          TT_FACE_FLAG_VAR_HADVANCE ) )
-              outline->points[j].x += delta_x;
+              point_deltas_x[j] = old_point_delta_x + point_delta_x;
 
             else if ( j == ( n_points - 2 )        &&
                       !( face->variation_support &
                          TT_FACE_FLAG_VAR_TSB    ) )
-              outline->points[j].y += delta_y;
+              point_deltas_y[j] = old_point_delta_y + point_delta_y;
 
             else if ( j == ( n_points - 1 )          &&
                       !( face->variation_support   &
                          TT_FACE_FLAG_VAR_VADVANCE ) )
-              outline->points[j].y += delta_y;
+              point_deltas_y[j] = old_point_delta_y + point_delta_y;
           }
 
 #ifdef FT_DEBUG_LEVEL_TRACE
-          if ( delta_x || delta_y )
+          if ( point_delta_x || point_delta_y )
           {
-            FT_TRACE7(( "      %d: (%d, %d) -> (%d, %d)\n",
+            FT_TRACE7(( "      %d: (%f, %f) -> (%f, %f)\n",
                         j,
-                        outline->points[j].x - delta_x,
-                        outline->points[j].y - delta_y,
-                        outline->points[j].x,
-                        outline->points[j].y ));
+                        ( FT_intToFixed( outline->points[j].x ) +
+                          old_point_delta_x ) / 65536.0,
+                        ( FT_intToFixed( outline->points[j].y ) +
+                          old_point_delta_y ) / 65536.0,
+                        ( FT_intToFixed( outline->points[j].x ) +
+                          point_deltas_x[j] ) / 65536.0,
+                        ( FT_intToFixed( outline->points[j].y ) +
+                          point_deltas_y[j] ) / 65536.0 ));
             count++;
           }
 #endif
@@ -3837,14 +3988,17 @@
 
         for ( j = 0; j < n_points; j++ )
         {
-          FT_Pos  delta_x = points_out[j].x - points_org[j].x;
-          FT_Pos  delta_y = points_out[j].y - points_org[j].y;
+          FT_Fixed  old_point_delta_x = point_deltas_x[j];
+          FT_Fixed  old_point_delta_y = point_deltas_y[j];
+
+          FT_Pos  point_delta_x = points_out[j].x - points_org[j].x;
+          FT_Pos  point_delta_y = points_out[j].y - points_org[j].y;
 
 
           if ( j < n_points - 4 )
           {
-            outline->points[j].x += delta_x;
-            outline->points[j].y += delta_y;
+            point_deltas_x[j] = old_point_delta_x + point_delta_x;
+            point_deltas_y[j] = old_point_delta_y + point_delta_y;
           }
           else
           {
@@ -3854,33 +4008,37 @@
             if ( j == ( n_points - 4 )        &&
                  !( face->variation_support &
                     TT_FACE_FLAG_VAR_LSB    ) )
-              outline->points[j].x += delta_x;
+              point_deltas_x[j] = old_point_delta_x + point_delta_x;
 
             else if ( j == ( n_points - 3 )          &&
                       !( face->variation_support   &
                          TT_FACE_FLAG_VAR_HADVANCE ) )
-              outline->points[j].x += delta_x;
+              point_deltas_x[j] = old_point_delta_x + point_delta_x;
 
             else if ( j == ( n_points - 2 )        &&
                       !( face->variation_support &
                          TT_FACE_FLAG_VAR_TSB    ) )
-              outline->points[j].y += delta_y;
+              point_deltas_y[j] = old_point_delta_y + point_delta_y;
 
             else if ( j == ( n_points - 1 )          &&
                       !( face->variation_support   &
                          TT_FACE_FLAG_VAR_VADVANCE ) )
-              outline->points[j].y += delta_y;
+              point_deltas_y[j] = old_point_delta_y + point_delta_y;
           }
 
 #ifdef FT_DEBUG_LEVEL_TRACE
-          if ( delta_x || delta_y )
+          if ( point_delta_x || point_delta_y )
           {
-            FT_TRACE7(( "      %d: (%d, %d) -> (%d, %d)\n",
+            FT_TRACE7(( "      %d: (%f, %f) -> (%f, %f)\n",
                         j,
-                        outline->points[j].x - delta_x,
-                        outline->points[j].y - delta_y,
-                        outline->points[j].x,
-                        outline->points[j].y ));
+                        ( FT_intToFixed( outline->points[j].x ) +
+                          old_point_delta_x ) / 65536.0,
+                        ( FT_intToFixed( outline->points[j].y ) +
+                          old_point_delta_y ) / 65536.0,
+                        ( FT_intToFixed( outline->points[j].x ) +
+                          point_deltas_x[j] ) / 65536.0,
+                        ( FT_intToFixed( outline->points[j].y ) +
+                          point_deltas_y[j] ) / 65536.0 ));
             count++;
           }
 #endif
@@ -3904,6 +4062,16 @@
 
     FT_TRACE5(( "\n" ));
 
+    for ( i = 0; i < n_points; i++ )
+    {
+      outline->points[i].x += FT_fixedToInt( point_deltas_x[i] );
+      outline->points[i].y += FT_fixedToInt( point_deltas_y[i] );
+    }
+
+  Fail3:
+    FT_FREE( point_deltas_x );
+    FT_FREE( point_deltas_y );
+
   Fail2:
     if ( sharedpoints != ALL_POINTS )
       FT_FREE( sharedpoints );
@@ -3922,16 +4090,16 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_get_var_blend                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    An extended internal version of `TT_Get_MM_Blend' that returns     */
-  /*    pointers instead of copying data, without any initialization of    */
-  /*    the MM machinery in case it isn't loaded yet.                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_get_var_blend
+   *
+   * @Description:
+   *   An extended internal version of `TT_Get_MM_Blend' that returns
+   *   pointers instead of copying data, without any initialization of
+   *   the MM machinery in case it isn't loaded yet.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_get_var_blend( TT_Face      face,
                     FT_UInt     *num_coords,
@@ -3993,14 +4161,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_done_blend                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Free the blend internal data structure.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_done_blend
+   *
+   * @Description:
+   *   Free the blend internal data structure.
+   */
   FT_LOCAL_DEF( void )
   tt_done_blend( TT_Face  face )
   {
diff --git a/thirdparty/freetype/src/truetype/ttgxvar.h b/thirdparty/freetype/src/truetype/ttgxvar.h
index a37bb90266..7e8d9768a7 100644
--- a/thirdparty/freetype/src/truetype/ttgxvar.h
+++ b/thirdparty/freetype/src/truetype/ttgxvar.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttgxvar.h                                                              */
-/*                                                                         */
-/*    TrueType GX Font Variation loader (specification)                    */
-/*                                                                         */
-/*  Copyright 2004-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, Werner Lemberg and George Williams.      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttgxvar.h
+ *
+ *   TrueType GX Font Variation loader (specification)
+ *
+ * Copyright (C) 2004-2019 by
+ * David Turner, Robert Wilhelm, Werner Lemberg and George Williams.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTGXVAR_H_
@@ -29,15 +29,15 @@ FT_BEGIN_HEADER
 
 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    GX_AVarCorrespondenceRec                                           */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A data structure representing `shortFracCorrespondence' in `avar'  */
-  /*    table according to the specifications from Apple.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   GX_AVarCorrespondenceRec
+   *
+   * @Description:
+   *   A data structure representing `shortFracCorrespondence' in `avar'
+   *   table according to the specifications from Apple.
+   */
   typedef struct  GX_AVarCorrespondenceRec_
   {
     FT_Fixed  fromCoord;
@@ -46,15 +46,15 @@ FT_BEGIN_HEADER
   } GX_AVarCorrespondenceRec_, *GX_AVarCorrespondence;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    GX_AVarRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Data from the segment field of `avar' table.                       */
-  /*    There is one of these for each axis.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   GX_AVarRec
+   *
+   * @Description:
+   *   Data from the segment field of `avar' table.
+   *   There is one of these for each axis.
+   */
   typedef struct  GX_AVarSegmentRec_
   {
     FT_UShort              pairCount;
@@ -114,14 +114,14 @@ FT_BEGIN_HEADER
   } GX_DeltaSetIdxMapRec, *GX_DeltaSetIdxMap;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    GX_HVVarTableRec                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Data from either the `HVAR' or `VVAR' table.                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   GX_HVVarTableRec
+   *
+   * @Description:
+   *   Data from either the `HVAR' or `VVAR' table.
+   */
   typedef struct  GX_HVVarTableRec_
   {
     GX_ItemVarStoreRec    itemStore;        /* Item Variation Store  */
@@ -191,14 +191,14 @@ FT_BEGIN_HEADER
   } GX_ValueRec, *GX_Value;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    GX_MVarTableRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Data from the `MVAR' table.                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   GX_MVarTableRec
+   *
+   * @Description:
+   *   Data from the `MVAR' table.
+   */
   typedef struct  GX_MVarTableRec_
   {
     FT_UShort  valueCount;
@@ -209,95 +209,95 @@ FT_BEGIN_HEADER
   } GX_MVarTableRec, *GX_MVarTable;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    GX_BlendRec                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Data for interpolating a font from a distortable font specified    */
-  /*    by the GX *var tables ([fgcahvm]var).                              */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    num_axis ::                                                        */
-  /*      The number of axes along which interpolation may happen.         */
-  /*                                                                       */
-  /*    coords ::                                                          */
-  /*      An array of design coordinates (in user space) indicating the    */
-  /*      contribution along each axis to the final interpolated font.     */
-  /*      `normalizedcoords' holds the same values.                        */
-  /*                                                                       */
-  /*    normalizedcoords ::                                                */
-  /*      An array of normalized values (between [-1,1]) indicating the    */
-  /*      contribution along each axis to the final interpolated font.     */
-  /*      `coords' holds the same values.                                  */
-  /*                                                                       */
-  /*    mmvar ::                                                           */
-  /*      Data from the `fvar' table.                                      */
-  /*                                                                       */
-  /*    mmvar_len ::                                                       */
-  /*      The length of the `mmvar' structure.                             */
-  /*                                                                       */
-  /*    normalized_stylecoords ::                                          */
-  /*      A two-dimensional array that holds the named instance data from  */
-  /*      `mmvar' as normalized values.                                    */
-  /*                                                                       */
-  /*    avar_loaded ::                                                     */
-  /*      A Boolean; if set, FreeType tried to load (and parse) the `avar' */
-  /*      table.                                                           */
-  /*                                                                       */
-  /*    avar_segment ::                                                    */
-  /*      Data from the `avar' table.                                      */
-  /*                                                                       */
-  /*    hvar_loaded ::                                                     */
-  /*      A Boolean; if set, FreeType tried to load (and parse) the `hvar' */
-  /*      table.                                                           */
-  /*                                                                       */
-  /*    hvar_checked ::                                                    */
-  /*      A Boolean; if set, FreeType successfully loaded and parsed the   */
-  /*      `hvar' table.                                                    */
-  /*                                                                       */
-  /*    hvar_error ::                                                      */
-  /*      If loading and parsing of the `hvar' table failed, this field    */
-  /*      holds the corresponding error code.                              */
-  /*                                                                       */
-  /*    hvar_table ::                                                      */
-  /*      Data from the `hvar' table.                                      */
-  /*                                                                       */
-  /*    vvar_loaded ::                                                     */
-  /*      A Boolean; if set, FreeType tried to load (and parse) the `vvar' */
-  /*      table.                                                           */
-  /*                                                                       */
-  /*    vvar_checked ::                                                    */
-  /*      A Boolean; if set, FreeType successfully loaded and parsed the   */
-  /*      `vvar' table.                                                    */
-  /*                                                                       */
-  /*    vvar_error ::                                                      */
-  /*      If loading and parsing of the `vvar' table failed, this field    */
-  /*      holds the corresponding error code.                              */
-  /*                                                                       */
-  /*    vvar_table ::                                                      */
-  /*      Data from the `vvar' table.                                      */
-  /*                                                                       */
-  /*    mvar_table ::                                                      */
-  /*      Data from the `mvar' table.                                      */
-  /*                                                                       */
-  /*    tuplecount ::                                                      */
-  /*      The number of shared tuples in the `gvar' table.                 */
-  /*                                                                       */
-  /*    tuplecoords ::                                                     */
-  /*      A two-dimensional array that holds the shared tuple coordinates  */
-  /*      in the `gvar' table.                                             */
-  /*                                                                       */
-  /*    gv_glyphcnt ::                                                     */
-  /*      The number of glyphs handled in the `gvar' table.                */
-  /*                                                                       */
-  /*    glyphoffsets ::                                                    */
-  /*      Offsets into the glyph variation data array.                     */
-  /*                                                                       */
-  /*    gvar_size ::                                                       */
-  /*      The size of the `gvar' table.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   GX_BlendRec
+   *
+   * @Description:
+   *   Data for interpolating a font from a distortable font specified
+   *   by the GX *var tables ([fgcahvm]var).
+   *
+   * @Fields:
+   *   num_axis ::
+   *     The number of axes along which interpolation may happen.
+   *
+   *   coords ::
+   *     An array of design coordinates (in user space) indicating the
+   *     contribution along each axis to the final interpolated font.
+   *     `normalizedcoords' holds the same values.
+   *
+   *   normalizedcoords ::
+   *     An array of normalized values (between [-1,1]) indicating the
+   *     contribution along each axis to the final interpolated font.
+   *     `coords' holds the same values.
+   *
+   *   mmvar ::
+   *     Data from the `fvar' table.
+   *
+   *   mmvar_len ::
+   *     The length of the `mmvar' structure.
+   *
+   *   normalized_stylecoords ::
+   *     A two-dimensional array that holds the named instance data from
+   *     `mmvar' as normalized values.
+   *
+   *   avar_loaded ::
+   *     A Boolean; if set, FreeType tried to load (and parse) the `avar'
+   *     table.
+   *
+   *   avar_segment ::
+   *     Data from the `avar' table.
+   *
+   *   hvar_loaded ::
+   *     A Boolean; if set, FreeType tried to load (and parse) the `hvar'
+   *     table.
+   *
+   *   hvar_checked ::
+   *     A Boolean; if set, FreeType successfully loaded and parsed the
+   *     `hvar' table.
+   *
+   *   hvar_error ::
+   *     If loading and parsing of the `hvar' table failed, this field
+   *     holds the corresponding error code.
+   *
+   *   hvar_table ::
+   *     Data from the `hvar' table.
+   *
+   *   vvar_loaded ::
+   *     A Boolean; if set, FreeType tried to load (and parse) the `vvar'
+   *     table.
+   *
+   *   vvar_checked ::
+   *     A Boolean; if set, FreeType successfully loaded and parsed the
+   *     `vvar' table.
+   *
+   *   vvar_error ::
+   *     If loading and parsing of the `vvar' table failed, this field
+   *     holds the corresponding error code.
+   *
+   *   vvar_table ::
+   *     Data from the `vvar' table.
+   *
+   *   mvar_table ::
+   *     Data from the `mvar' table.
+   *
+   *   tuplecount ::
+   *     The number of shared tuples in the `gvar' table.
+   *
+   *   tuplecoords ::
+   *     A two-dimensional array that holds the shared tuple coordinates
+   *     in the `gvar' table.
+   *
+   *   gv_glyphcnt ::
+   *     The number of glyphs handled in the `gvar' table.
+   *
+   *   glyphoffsets ::
+   *     Offsets into the glyph variation data array.
+   *
+   *   gvar_size ::
+   *     The size of the `gvar' table.
+   */
   typedef struct  GX_BlendRec_
   {
     FT_UInt         num_axis;
@@ -336,14 +336,14 @@ FT_BEGIN_HEADER
   } GX_BlendRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <enum>                                                                */
-  /*    GX_TupleCountFlags                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Flags used within the `TupleCount' field of the `gvar' table.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   GX_TupleCountFlags
+   *
+   * @Description:
+   *   Flags used within the `TupleCount' field of the `gvar' table.
+   */
   typedef enum  GX_TupleCountFlags_
   {
     GX_TC_TUPLES_SHARE_POINT_NUMBERS = 0x8000,
@@ -353,15 +353,15 @@ FT_BEGIN_HEADER
   } GX_TupleCountFlags;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <enum>                                                                */
-  /*    GX_TupleIndexFlags                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Flags used within the `TupleIndex' field of the `gvar' and `cvar'  */
-  /*    tables.                                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @enum:
+   *   GX_TupleIndexFlags
+   *
+   * @Description:
+   *   Flags used within the `TupleIndex' field of the `gvar' and `cvar'
+   *   tables.
+   */
   typedef enum  GX_TupleIndexFlags_
   {
     GX_TI_EMBEDDED_TUPLE_COORD  = 0x8000,
diff --git a/thirdparty/freetype/src/truetype/ttinterp.c b/thirdparty/freetype/src/truetype/ttinterp.c
index da9b595aba..403f3753c7 100644
--- a/thirdparty/freetype/src/truetype/ttinterp.c
+++ b/thirdparty/freetype/src/truetype/ttinterp.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttinterp.c                                                             */
-/*                                                                         */
-/*    TrueType bytecode interpreter (body).                                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttinterp.c
+ *
+ *   TrueType bytecode interpreter (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 /* Greg Hitchcock from Microsoft has helped a lot in resolving unclear */
@@ -39,14 +39,14 @@
 #ifdef TT_USE_BYTECODE_INTERPRETER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttinterp
+#define FT_COMPONENT  ttinterp
 
 
 #define NO_SUBPIXEL_HINTING                                                  \
@@ -82,10 +82,10 @@
           exc->func_dualproj( exc, (v)->x, (v)->y )
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Two simple bounds-checking macros.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Two simple bounds-checking macros.
+   */
 #define BOUNDS( x, n )   ( (FT_UInt)(x)  >= (FT_UInt)(n)  )
 #define BOUNDSL( x, n )  ( (FT_ULong)(x) >= (FT_ULong)(n) )
 
@@ -97,30 +97,33 @@
 #define FAILURE  1
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                        CODERANGE FUNCTIONS                            */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Goto_CodeRange                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Switches to a new code range (updates the code related elements in */
-  /*    `exec', and `IP').                                                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    range :: The new execution code range.                             */
-  /*                                                                       */
-  /*    IP    :: The new IP in the new code range.                         */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    exec  :: The target execution context.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                       CODERANGE FUNCTIONS
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Goto_CodeRange
+   *
+   * @Description:
+   *   Switches to a new code range (updates the code related elements in
+   *   `exec', and `IP').
+   *
+   * @Input:
+   *   range ::
+   *     The new execution code range.
+   *
+   *   IP ::
+   *     The new IP in the new code range.
+   *
+   * @InOut:
+   *   exec ::
+   *     The target execution context.
+   */
   FT_LOCAL_DEF( void )
   TT_Goto_CodeRange( TT_ExecContext  exec,
                      FT_Int          range,
@@ -148,24 +151,28 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Set_CodeRange                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Sets a code range.                                                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    range  :: The code range index.                                    */
-  /*                                                                       */
-  /*    base   :: The new code base.                                       */
-  /*                                                                       */
-  /*    length :: The range size in bytes.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    exec   :: The target execution context.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Set_CodeRange
+   *
+   * @Description:
+   *   Sets a code range.
+   *
+   * @Input:
+   *   range ::
+   *     The code range index.
+   *
+   *   base ::
+   *     The new code base.
+   *
+   *   length ::
+   *     The range size in bytes.
+   *
+   * @InOut:
+   *   exec ::
+   *     The target execution context.
+   */
   FT_LOCAL_DEF( void )
   TT_Set_CodeRange( TT_ExecContext  exec,
                     FT_Int          range,
@@ -179,20 +186,22 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Clear_CodeRange                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Clears a code range.                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    range :: The code range index.                                     */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    exec  :: The target execution context.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Clear_CodeRange
+   *
+   * @Description:
+   *   Clears a code range.
+   *
+   * @Input:
+   *   range ::
+   *     The code range index.
+   *
+   * @InOut:
+   *   exec ::
+   *     The target execution context.
+   */
   FT_LOCAL_DEF( void )
   TT_Clear_CodeRange( TT_ExecContext  exec,
                       FT_Int          range )
@@ -204,29 +213,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                   EXECUTION CONTEXT ROUTINES                          */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Done_Context                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Destroys a given context.                                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    exec   :: A handle to the target execution context.                */
-  /*                                                                       */
-  /*    memory :: A handle to the parent memory object.                    */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only the glyph loader and debugger should call this function.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                  EXECUTION CONTEXT ROUTINES
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Done_Context
+   *
+   * @Description:
+   *   Destroys a given context.
+   *
+   * @Input:
+   *   exec ::
+   *     A handle to the target execution context.
+   *
+   *   memory ::
+   *     A handle to the parent memory object.
+   *
+   * @Note:
+   *   Only the glyph loader and debugger should call this function.
+   */
   FT_LOCAL_DEF( void )
   TT_Done_Context( TT_ExecContext  exec )
   {
@@ -257,23 +268,25 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Init_Context                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a context object.                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory :: A handle to the parent memory object.                    */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    exec   :: A handle to the target execution context.                */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Init_Context
+   *
+   * @Description:
+   *   Initializes a context object.
+   *
+   * @Input:
+   *   memory ::
+   *     A handle to the parent memory object.
+   *
+   * @InOut:
+   *   exec ::
+   *     A handle to the target execution context.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   static FT_Error
   Init_Context( TT_ExecContext  exec,
                 FT_Memory       memory )
@@ -313,30 +326,35 @@
  }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Update_Max                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Checks the size of a buffer and reallocates it if necessary.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory     :: A handle to the parent memory object.                */
-  /*                                                                       */
-  /*    multiplier :: The size in bytes of each element in the buffer.     */
-  /*                                                                       */
-  /*    new_max    :: The new capacity (size) of the buffer.               */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    size       :: The address of the buffer's current size expressed   */
-  /*                  in elements.                                         */
-  /*                                                                       */
-  /*    buff       :: The address of the buffer base pointer.              */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Update_Max
+   *
+   * @Description:
+   *   Checks the size of a buffer and reallocates it if necessary.
+   *
+   * @Input:
+   *   memory ::
+   *     A handle to the parent memory object.
+   *
+   *   multiplier ::
+   *     The size in bytes of each element in the buffer.
+   *
+   *   new_max ::
+   *     The new capacity (size) of the buffer.
+   *
+   * @InOut:
+   *   size ::
+   *     The address of the buffer's current size expressed
+   *     in elements.
+   *
+   *   buff ::
+   *     The address of the buffer base pointer.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   Update_Max( FT_Memory  memory,
               FT_ULong*  size,
@@ -359,28 +377,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Load_Context                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Prepare an execution context for glyph hinting.                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the source face object.                        */
-  /*                                                                       */
-  /*    size :: A handle to the source size object.                        */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    exec :: A handle to the target execution context.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only the glyph loader and debugger should call this function.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Load_Context
+   *
+   * @Description:
+   *   Prepare an execution context for glyph hinting.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   size ::
+   *     A handle to the source size object.
+   *
+   * @InOut:
+   *   exec ::
+   *     A handle to the target execution context.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   * @Note:
+   *   Only the glyph loader and debugger should call this function.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Load_Context( TT_ExecContext  exec,
                    TT_Face         face,
@@ -467,23 +488,25 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Save_Context                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Saves the code ranges in a `size' object.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    exec :: A handle to the source execution context.                  */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    size :: A handle to the target size object.                        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only the glyph loader and debugger should call this function.      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Save_Context
+   *
+   * @Description:
+   *   Saves the code ranges in a `size' object.
+   *
+   * @Input:
+   *   exec ::
+   *     A handle to the source execution context.
+   *
+   * @InOut:
+   *   size ::
+   *     A handle to the target size object.
+   *
+   * @Note:
+   *   Only the glyph loader and debugger should call this function.
+   */
   FT_LOCAL_DEF( void )
   TT_Save_Context( TT_ExecContext  exec,
                    TT_Size         size )
@@ -505,27 +528,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_Run_Context                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Executes one or more instructions in the execution context.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    debug :: A Boolean flag.  If set, the function sets some internal  */
-  /*             variables and returns immediately, otherwise TT_RunIns()  */
-  /*             is called.                                                */
-  /*                                                                       */
-  /*             This is commented out currently.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    exec  :: A handle to the target execution context.                 */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    TrueType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_Run_Context
+   *
+   * @Description:
+   *   Executes one or more instructions in the execution context.
+   *
+   * @Input:
+   *   exec ::
+   *     A handle to the target execution context.
+   *
+   * @Return:
+   *   TrueType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   TT_Run_Context( TT_ExecContext  exec )
   {
@@ -609,22 +626,22 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Before an opcode is executed, the interpreter verifies that there are */
-  /* enough arguments on the stack, with the help of the `Pop_Push_Count'  */
-  /* table.                                                                */
-  /*                                                                       */
-  /* For each opcode, the first column gives the number of arguments that  */
-  /* are popped from the stack; the second one gives the number of those   */
-  /* that are pushed in result.                                            */
-  /*                                                                       */
-  /* Opcodes which have a varying number of parameters in the data stream  */
-  /* (NPUSHB, NPUSHW) are handled specially; they have a negative value in */
-  /* the `opcode_length' table, and the value in `Pop_Push_Count' is set   */
-  /* to zero.                                                              */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Before an opcode is executed, the interpreter verifies that there are
+   * enough arguments on the stack, with the help of the `Pop_Push_Count'
+   * table.
+   *
+   * For each opcode, the first column gives the number of arguments that
+   * are popped from the stack; the second one gives the number of those
+   * that are pushed in result.
+   *
+   * Opcodes which have a varying number of parameters in the data stream
+   * (NPUSHB, NPUSHW) are handled specially; they have a negative value in
+   * the `opcode_length' table, and the value in `Pop_Push_Count' is set
+   * to zero.
+   *
+   */
 
 
 #undef  PACK
@@ -1129,73 +1146,73 @@
     "8 PushW[6]",
     "8 PushW[7]",
 
-    "8 MDRP[00]",
-    "8 MDRP[01]",
-    "8 MDRP[02]",
-    "8 MDRP[03]",
-    "8 MDRP[04]",
-    "8 MDRP[05]",
-    "8 MDRP[06]",
-    "8 MDRP[07]",
-    "8 MDRP[08]",
-    "8 MDRP[09]",
-    "8 MDRP[10]",
-    "8 MDRP[11]",
-    "8 MDRP[12]",
-    "8 MDRP[13]",
-    "8 MDRP[14]",
-    "8 MDRP[15]",
-
-    "8 MDRP[16]",
-    "8 MDRP[17]",
-    "8 MDRP[18]",
-    "8 MDRP[19]",
-    "8 MDRP[20]",
-    "8 MDRP[21]",
-    "8 MDRP[22]",
-    "8 MDRP[23]",
-    "8 MDRP[24]",
-    "8 MDRP[25]",
-    "8 MDRP[26]",
-    "8 MDRP[27]",
-    "8 MDRP[28]",
-    "8 MDRP[29]",
-    "8 MDRP[30]",
-    "8 MDRP[31]",
-
-    "8 MIRP[00]",
-    "8 MIRP[01]",
-    "8 MIRP[02]",
-    "8 MIRP[03]",
-    "8 MIRP[04]",
-    "8 MIRP[05]",
-    "8 MIRP[06]",
-    "8 MIRP[07]",
-    "8 MIRP[08]",
-    "8 MIRP[09]",
-    "8 MIRP[10]",
-    "8 MIRP[11]",
-    "8 MIRP[12]",
-    "8 MIRP[13]",
-    "8 MIRP[14]",
-    "8 MIRP[15]",
-
-    "8 MIRP[16]",
-    "8 MIRP[17]",
-    "8 MIRP[18]",
-    "8 MIRP[19]",
-    "8 MIRP[20]",
-    "8 MIRP[21]",
-    "8 MIRP[22]",
-    "8 MIRP[23]",
-    "8 MIRP[24]",
-    "8 MIRP[25]",
-    "8 MIRP[26]",
-    "8 MIRP[27]",
-    "8 MIRP[28]",
-    "8 MIRP[29]",
-    "8 MIRP[30]",
-    "8 MIRP[31]"
+    "7 MDRP[G]",
+    "7 MDRP[B]",
+    "7 MDRP[W]",
+    "7 MDRP[?]",
+    "8 MDRP[rG]",
+    "8 MDRP[rB]",
+    "8 MDRP[rW]",
+    "8 MDRP[r?]",
+    "8 MDRP[mG]",
+    "8 MDRP[mB]",
+    "8 MDRP[mW]",
+    "8 MDRP[m?]",
+    "9 MDRP[mrG]",
+    "9 MDRP[mrB]",
+    "9 MDRP[mrW]",
+    "9 MDRP[mr?]",
+
+    "8 MDRP[pG]",
+    "8 MDRP[pB]",
+    "8 MDRP[pW]",
+    "8 MDRP[p?]",
+    "9 MDRP[prG]",
+    "9 MDRP[prB]",
+    "9 MDRP[prW]",
+    "9 MDRP[pr?]",
+    "9 MDRP[pmG]",
+    "9 MDRP[pmB]",
+    "9 MDRP[pmW]",
+    "9 MDRP[pm?]",
+    "A MDRP[pmrG]",
+    "A MDRP[pmrB]",
+    "A MDRP[pmrW]",
+    "A MDRP[pmr?]",
+
+    "7 MIRP[G]",
+    "7 MIRP[B]",
+    "7 MIRP[W]",
+    "7 MIRP[?]",
+    "8 MIRP[rG]",
+    "8 MIRP[rB]",
+    "8 MIRP[rW]",
+    "8 MIRP[r?]",
+    "8 MIRP[mG]",
+    "8 MIRP[mB]",
+    "8 MIRP[mW]",
+    "8 MIRP[m?]",
+    "9 MIRP[mrG]",
+    "9 MIRP[mrB]",
+    "9 MIRP[mrW]",
+    "9 MIRP[mr?]",
+
+    "8 MIRP[pG]",
+    "8 MIRP[pB]",
+    "8 MIRP[pW]",
+    "8 MIRP[p?]",
+    "9 MIRP[prG]",
+    "9 MIRP[prB]",
+    "9 MIRP[prW]",
+    "9 MIRP[pr?]",
+    "9 MIRP[pmG]",
+    "9 MIRP[pmB]",
+    "9 MIRP[pmW]",
+    "9 MIRP[pm?]",
+    "A MIRP[pmrG]",
+    "A MIRP[pmrB]",
+    "A MIRP[pmrW]",
+    "A MIRP[pmr?]"
   };
 
 #endif /* FT_DEBUG_LEVEL_TRACE */
@@ -1448,18 +1465,18 @@
 #endif /* TT_DotFix14 */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Current_Ratio                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Returns the current aspect ratio scaling factor depending on the   */
-  /*    projection vector's state and device resolutions.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The aspect ratio in 16.16 format, always <= 1.0 .                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Current_Ratio
+   *
+   * @Description:
+   *   Returns the current aspect ratio scaling factor depending on the
+   *   projection vector's state and device resolutions.
+   *
+   * @Return:
+   *   The aspect ratio in 16.16 format, always <= 1.0 .
+   */
   static FT_Long
   Current_Ratio( TT_ExecContext  exc )
   {
@@ -1501,11 +1518,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Functions related to the control value table (CVT).                   */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Functions related to the control value table (CVT).
+   *
+   */
 
 
   FT_CALLBACK_DEF( FT_F26Dot6 )
@@ -1547,7 +1564,7 @@
             FT_ULong        idx,
             FT_F26Dot6      value )
   {
-    exc->cvt[idx] += value;
+    exc->cvt[idx] = ADD_LONG( exc->cvt[idx], value );
   }
 
 
@@ -1556,25 +1573,26 @@
                       FT_ULong        idx,
                       FT_F26Dot6      value )
   {
-    exc->cvt[idx] += FT_DivFix( value, Current_Ratio( exc ) );
-  }
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    GetShortIns                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Returns a short integer taken from the instruction stream at       */
-  /*    address IP.                                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Short read at code[IP].                                            */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This one could become a macro.                                     */
-  /*                                                                       */
+    exc->cvt[idx] = ADD_LONG( exc->cvt[idx],
+                              FT_DivFix( value, Current_Ratio( exc ) ) );
+  }
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   GetShortIns
+   *
+   * @Description:
+   *   Returns a short integer taken from the instruction stream at
+   *   address IP.
+   *
+   * @Return:
+   *   Short read at code[IP].
+   *
+   * @Note:
+   *   This one could become a macro.
+   */
   static FT_Short
   GetShortIns( TT_ExecContext  exc )
   {
@@ -1585,22 +1603,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Ins_Goto_CodeRange                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Goes to a certain code range in the instruction stream.            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    aRange :: The index of the code range.                             */
-  /*                                                                       */
-  /*    aIP    :: The new IP address in the code range.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    SUCCESS or FAILURE.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Ins_Goto_CodeRange
+   *
+   * @Description:
+   *   Goes to a certain code range in the instruction stream.
+   *
+   * @Input:
+   *   aRange ::
+   *     The index of the code range.
+   *
+   *   aIP ::
+   *     The new IP address in the code range.
+   *
+   * @Return:
+   *   SUCCESS or FAILURE.
+   */
   static FT_Bool
   Ins_Goto_CodeRange( TT_ExecContext  exc,
                       FT_Int          aRange,
@@ -1642,27 +1662,30 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Direct_Move                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Moves a point by a given distance along the freedom vector.  The   */
-  /*    point will be `touched'.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    point    :: The index of the point to move.                        */
-  /*                                                                       */
-  /*    distance :: The distance to apply.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    zone     :: The affected glyph zone.                               */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    See `ttinterp.h' for details on backward compatibility mode.       */
-  /*    `Touches' the point.                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Direct_Move
+   *
+   * @Description:
+   *   Moves a point by a given distance along the freedom vector.  The
+   *   point will be `touched'.
+   *
+   * @Input:
+   *   point ::
+   *     The index of the point to move.
+   *
+   *   distance ::
+   *     The distance to apply.
+   *
+   * @InOut:
+   *   zone ::
+   *     The affected glyph zone.
+   *
+   * @Note:
+   *   See `ttinterp.h' for details on backward compatibility mode.
+   *   `Touches' the point.
+   */
   static void
   Direct_Move( TT_ExecContext  exc,
                TT_GlyphZone    zone,
@@ -1728,23 +1751,26 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Direct_Move_Orig                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Moves the *original* position of a point by a given distance along */
-  /*    the freedom vector.  Obviously, the point will not be `touched'.   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    point    :: The index of the point to move.                        */
-  /*                                                                       */
-  /*    distance :: The distance to apply.                                 */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    zone     :: The affected glyph zone.                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Direct_Move_Orig
+   *
+   * @Description:
+   *   Moves the *original* position of a point by a given distance along
+   *   the freedom vector.  Obviously, the point will not be `touched'.
+   *
+   * @Input:
+   *   point ::
+   *     The index of the point to move.
+   *
+   *   distance ::
+   *     The distance to apply.
+   *
+   * @InOut:
+   *   zone ::
+   *     The affected glyph zone.
+   */
   static void
   Direct_Move_Orig( TT_ExecContext  exc,
                     TT_GlyphZone    zone,
@@ -1772,15 +1798,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Special versions of Direct_Move()                                     */
-  /*                                                                       */
-  /*   The following versions are used whenever both vectors are both      */
-  /*   along one of the coordinate unit vectors, i.e. in 90% of the cases. */
-  /*   See `ttinterp.h' for details on backward compatibility mode.        */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Special versions of Direct_Move()
+   *
+   *   The following versions are used whenever both vectors are both
+   *   along one of the coordinate unit vectors, i.e. in 90% of the cases.
+   *   See `ttinterp.h' for details on backward compatibility mode.
+   *
+   */
 
 
   static void
@@ -1827,14 +1853,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Special versions of Direct_Move_Orig()                                */
-  /*                                                                       */
-  /*   The following versions are used whenever both vectors are both      */
-  /*   along one of the coordinate unit vectors, i.e. in 90% of the cases. */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Special versions of Direct_Move_Orig()
+   *
+   *   The following versions are used whenever both vectors are both
+   *   along one of the coordinate unit vectors, i.e. in 90% of the cases.
+   *
+   */
 
 
   static void
@@ -1861,28 +1887,30 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_None                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Does not round, but adds engine compensation.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance (not) to round.                       */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The compensated distance.                                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The TrueType specification says very few about the relationship    */
-  /*    between rounding and engine compensation.  However, it seems from  */
-  /*    the description of super round that we should add the compensation */
-  /*    before rounding.                                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_None
+   *
+   * @Description:
+   *   Does not round, but adds engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance (not) to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   The compensated distance.
+   *
+   * @Note:
+   *   The TrueType specification says very few about the relationship
+   *   between rounding and engine compensation.  However, it seems from
+   *   the description of super round that we should add the compensation
+   *   before rounding.
+   */
   static FT_F26Dot6
   Round_None( TT_ExecContext  exc,
               FT_F26Dot6      distance,
@@ -1909,22 +1937,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_To_Grid                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Rounds value to grid after adding engine compensation.             */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_To_Grid
+   *
+   * @Description:
+   *   Rounds value to grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   */
   static FT_F26Dot6
   Round_To_Grid( TT_ExecContext  exc,
                  FT_F26Dot6      distance,
@@ -1953,22 +1983,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_To_Half_Grid                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Rounds value to half grid after adding engine compensation.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_To_Half_Grid
+   *
+   * @Description:
+   *   Rounds value to half grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   */
   static FT_F26Dot6
   Round_To_Half_Grid( TT_ExecContext  exc,
                       FT_F26Dot6      distance,
@@ -1999,22 +2031,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_Down_To_Grid                                                 */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Rounds value down to grid after adding engine compensation.        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_Down_To_Grid
+   *
+   * @Description:
+   *   Rounds value down to grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   */
   static FT_F26Dot6
   Round_Down_To_Grid( TT_ExecContext  exc,
                       FT_F26Dot6      distance,
@@ -2042,22 +2076,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_Up_To_Grid                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Rounds value up to grid after adding engine compensation.          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_Up_To_Grid
+   *
+   * @Description:
+   *   Rounds value up to grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   */
   static FT_F26Dot6
   Round_Up_To_Grid( TT_ExecContext  exc,
                     FT_F26Dot6      distance,
@@ -2086,22 +2122,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_To_Double_Grid                                               */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Rounds value to double grid after adding engine compensation.      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_To_Double_Grid
+   *
+   * @Description:
+   *   Rounds value to double grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   */
   static FT_F26Dot6
   Round_To_Double_Grid( TT_ExecContext  exc,
                         FT_F26Dot6      distance,
@@ -2130,28 +2168,30 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_Super                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Super-rounds value to grid after adding engine compensation.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The TrueType specification says very little about the relationship */
-  /*    between rounding and engine compensation.  However, it seems from  */
-  /*    the description of super round that we should add the compensation */
-  /*    before rounding.                                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_Super
+   *
+   * @Description:
+   *   Super-rounds value to grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   *
+   * @Note:
+   *   The TrueType specification says very little about the relationship
+   *   between rounding and engine compensation.  However, it seems from
+   *   the description of super round that we should add the compensation
+   *   before rounding.
+   */
   static FT_F26Dot6
   Round_Super( TT_ExecContext  exc,
                FT_F26Dot6      distance,
@@ -2183,26 +2223,28 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Round_Super_45                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Super-rounds value to grid after adding engine compensation.       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    distance     :: The distance to round.                             */
-  /*                                                                       */
-  /*    compensation :: The engine compensation.                           */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Rounded distance.                                                  */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    There is a separate function for Round_Super_45() as we may need   */
-  /*    greater precision.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Round_Super_45
+   *
+   * @Description:
+   *   Super-rounds value to grid after adding engine compensation.
+   *
+   * @Input:
+   *   distance ::
+   *     The distance to round.
+   *
+   *   compensation ::
+   *     The engine compensation.
+   *
+   * @Return:
+   *   Rounded distance.
+   *
+   * @Note:
+   *   There is a separate function for Round_Super_45() as we may need
+   *   greater precision.
+   */
   static FT_F26Dot6
   Round_Super_45( TT_ExecContext  exc,
                   FT_F26Dot6      distance,
@@ -2234,17 +2276,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Compute_Round                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Sets the rounding mode.                                            */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    round_mode :: The rounding mode to be used.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Compute_Round
+   *
+   * @Description:
+   *   Sets the rounding mode.
+   *
+   * @Input:
+   *   round_mode ::
+   *     The rounding mode to be used.
+   */
   static void
   Compute_Round( TT_ExecContext  exc,
                  FT_Byte         round_mode )
@@ -2286,19 +2329,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    SetSuperRound                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Sets Super Round parameters.                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    GridPeriod :: The grid period.                                     */
-  /*                                                                       */
-  /*    selector   :: The SROUND opcode.                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   SetSuperRound
+   *
+   * @Description:
+   *   Sets Super Round parameters.
+   *
+   * @Input:
+   *   GridPeriod ::
+   *     The grid period.
+   *
+   *   selector ::
+   *     The SROUND opcode.
+   */
   static void
   SetSuperRound( TT_ExecContext  exc,
                  FT_F2Dot14      GridPeriod,
@@ -2355,22 +2400,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Project                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the projection of vector given by (v2-v1) along the       */
-  /*    current projection vector.                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    v1 :: First input vector.                                          */
-  /*    v2 :: Second input vector.                                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The distance in F26dot6 format.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Project
+   *
+   * @Description:
+   *   Computes the projection of vector given by (v2-v1) along the
+   *   current projection vector.
+   *
+   * @Input:
+   *   v1 ::
+   *     First input vector.
+   *   v2 ::
+   *     Second input vector.
+   *
+   * @Return:
+   *   The distance in F26dot6 format.
+   */
   static FT_F26Dot6
   Project( TT_ExecContext  exc,
            FT_Pos          dx,
@@ -2382,22 +2429,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Dual_Project                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the projection of the vector given by (v2-v1) along the   */
-  /*    current dual vector.                                               */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    v1 :: First input vector.                                          */
-  /*    v2 :: Second input vector.                                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The distance in F26dot6 format.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Dual_Project
+   *
+   * @Description:
+   *   Computes the projection of the vector given by (v2-v1) along the
+   *   current dual vector.
+   *
+   * @Input:
+   *   v1 ::
+   *     First input vector.
+   *   v2 ::
+   *     Second input vector.
+   *
+   * @Return:
+   *   The distance in F26dot6 format.
+   */
   static FT_F26Dot6
   Dual_Project( TT_ExecContext  exc,
                 FT_Pos          dx,
@@ -2409,22 +2458,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Project_x                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the projection of the vector given by (v2-v1) along the   */
-  /*    horizontal axis.                                                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    v1 :: First input vector.                                          */
-  /*    v2 :: Second input vector.                                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The distance in F26dot6 format.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Project_x
+   *
+   * @Description:
+   *   Computes the projection of the vector given by (v2-v1) along the
+   *   horizontal axis.
+   *
+   * @Input:
+   *   v1 ::
+   *     First input vector.
+   *   v2 ::
+   *     Second input vector.
+   *
+   * @Return:
+   *   The distance in F26dot6 format.
+   */
   static FT_F26Dot6
   Project_x( TT_ExecContext  exc,
              FT_Pos          dx,
@@ -2437,22 +2488,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Project_y                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the projection of the vector given by (v2-v1) along the   */
-  /*    vertical axis.                                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    v1 :: First input vector.                                          */
-  /*    v2 :: Second input vector.                                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    The distance in F26dot6 format.                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Project_y
+   *
+   * @Description:
+   *   Computes the projection of the vector given by (v2-v1) along the
+   *   vertical axis.
+   *
+   * @Input:
+   *   v1 ::
+   *     First input vector.
+   *   v2 ::
+   *     Second input vector.
+   *
+   * @Return:
+   *   The distance in F26dot6 format.
+   */
   static FT_F26Dot6
   Project_y( TT_ExecContext  exc,
              FT_Pos          dx,
@@ -2465,15 +2518,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Compute_Funcs                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Computes the projection and movement function pointers according   */
-  /*    to the current graphics state.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Compute_Funcs
+   *
+   * @Description:
+   *   Computes the projection and movement function pointers according
+   *   to the current graphics state.
+   */
   static void
   Compute_Funcs( TT_ExecContext  exc )
   {
@@ -2528,28 +2581,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Normalize                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Norms a vector.                                                    */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    Vx :: The horizontal input vector coordinate.                      */
-  /*    Vy :: The vertical input vector coordinate.                        */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    R  :: The normed unit vector.                                      */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    Returns FAILURE if a vector parameter is zero.                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    In case Vx and Vy are both zero, `Normalize' returns SUCCESS, and  */
-  /*    R is undefined.                                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Normalize
+   *
+   * @Description:
+   *   Norms a vector.
+   *
+   * @Input:
+   *   Vx ::
+   *     The horizontal input vector coordinate.
+   *   Vy ::
+   *     The vertical input vector coordinate.
+   *
+   * @Output:
+   *   R ::
+   *     The normed unit vector.
+   *
+   * @Return:
+   *   Returns FAILURE if a vector parameter is zero.
+   *
+   * @Note:
+   *   In case Vx and Vy are both zero, `Normalize' returns SUCCESS, and
+   *   R is undefined.
+   */
   static FT_Bool
   Normalize( FT_F26Dot6      Vx,
              FT_F26Dot6      Vy,
@@ -2577,11 +2633,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Here we start with the implementation of the various opcodes.         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Here we start with the implementation of the various opcodes.
+   *
+   */
 
 
 #define ARRAY_BOUND_ERROR                         \
@@ -2592,12 +2648,12 @@
     } while (0)
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MPPEM[]:      Measure Pixel Per EM                                    */
-  /* Opcode range: 0x4B                                                    */
-  /* Stack:        --> Euint16                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MPPEM[]:      Measure Pixel Per EM
+   * Opcode range: 0x4B
+   * Stack:        --> Euint16
+   */
   static void
   Ins_MPPEM( TT_ExecContext  exc,
              FT_Long*        args )
@@ -2606,12 +2662,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MPS[]:        Measure Point Size                                      */
-  /* Opcode range: 0x4C                                                    */
-  /* Stack:        --> Euint16                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MPS[]:        Measure Point Size
+   * Opcode range: 0x4C
+   * Stack:        --> Euint16
+   */
   static void
   Ins_MPS( TT_ExecContext  exc,
            FT_Long*        args )
@@ -2633,12 +2689,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DUP[]:        DUPlicate the stack's top element                       */
-  /* Opcode range: 0x20                                                    */
-  /* Stack:        StkElt --> StkElt StkElt                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DUP[]:        DUPlicate the stack's top element
+   * Opcode range: 0x20
+   * Stack:        StkElt --> StkElt StkElt
+   */
   static void
   Ins_DUP( FT_Long*  args )
   {
@@ -2646,12 +2702,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* POP[]:        POP the stack's top element                             */
-  /* Opcode range: 0x21                                                    */
-  /* Stack:        StkElt -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * POP[]:        POP the stack's top element
+   * Opcode range: 0x21
+   * Stack:        StkElt -->
+   */
   static void
   Ins_POP( void )
   {
@@ -2659,12 +2715,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* CLEAR[]:      CLEAR the entire stack                                  */
-  /* Opcode range: 0x22                                                    */
-  /* Stack:        StkElt... -->                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * CLEAR[]:      CLEAR the entire stack
+   * Opcode range: 0x22
+   * Stack:        StkElt... -->
+   */
   static void
   Ins_CLEAR( TT_ExecContext  exc )
   {
@@ -2672,12 +2728,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SWAP[]:       SWAP the stack's top two elements                       */
-  /* Opcode range: 0x23                                                    */
-  /* Stack:        2 * StkElt --> 2 * StkElt                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SWAP[]:       SWAP the stack's top two elements
+   * Opcode range: 0x23
+   * Stack:        2 * StkElt --> 2 * StkElt
+   */
   static void
   Ins_SWAP( FT_Long*  args )
   {
@@ -2690,12 +2746,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DEPTH[]:      return the stack DEPTH                                  */
-  /* Opcode range: 0x24                                                    */
-  /* Stack:        --> uint32                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DEPTH[]:      return the stack DEPTH
+   * Opcode range: 0x24
+   * Stack:        --> uint32
+   */
   static void
   Ins_DEPTH( TT_ExecContext  exc,
              FT_Long*        args )
@@ -2704,12 +2760,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* LT[]:         Less Than                                               */
-  /* Opcode range: 0x50                                                    */
-  /* Stack:        int32? int32? --> bool                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * LT[]:         Less Than
+   * Opcode range: 0x50
+   * Stack:        int32? int32? --> bool
+   */
   static void
   Ins_LT( FT_Long*  args )
   {
@@ -2717,12 +2773,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* LTEQ[]:       Less Than or EQual                                      */
-  /* Opcode range: 0x51                                                    */
-  /* Stack:        int32? int32? --> bool                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * LTEQ[]:       Less Than or EQual
+   * Opcode range: 0x51
+   * Stack:        int32? int32? --> bool
+   */
   static void
   Ins_LTEQ( FT_Long*  args )
   {
@@ -2730,12 +2786,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GT[]:         Greater Than                                            */
-  /* Opcode range: 0x52                                                    */
-  /* Stack:        int32? int32? --> bool                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GT[]:         Greater Than
+   * Opcode range: 0x52
+   * Stack:        int32? int32? --> bool
+   */
   static void
   Ins_GT( FT_Long*  args )
   {
@@ -2743,12 +2799,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GTEQ[]:       Greater Than or EQual                                   */
-  /* Opcode range: 0x53                                                    */
-  /* Stack:        int32? int32? --> bool                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GTEQ[]:       Greater Than or EQual
+   * Opcode range: 0x53
+   * Stack:        int32? int32? --> bool
+   */
   static void
   Ins_GTEQ( FT_Long*  args )
   {
@@ -2756,12 +2812,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* EQ[]:         EQual                                                   */
-  /* Opcode range: 0x54                                                    */
-  /* Stack:        StkElt StkElt --> bool                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * EQ[]:         EQual
+   * Opcode range: 0x54
+   * Stack:        StkElt StkElt --> bool
+   */
   static void
   Ins_EQ( FT_Long*  args )
   {
@@ -2769,12 +2825,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* NEQ[]:        Not EQual                                               */
-  /* Opcode range: 0x55                                                    */
-  /* Stack:        StkElt StkElt --> bool                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * NEQ[]:        Not EQual
+   * Opcode range: 0x55
+   * Stack:        StkElt StkElt --> bool
+   */
   static void
   Ins_NEQ( FT_Long*  args )
   {
@@ -2782,12 +2838,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ODD[]:        Is ODD                                                  */
-  /* Opcode range: 0x56                                                    */
-  /* Stack:        f26.6 --> bool                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ODD[]:        Is ODD
+   * Opcode range: 0x56
+   * Stack:        f26.6 --> bool
+   */
   static void
   Ins_ODD( TT_ExecContext  exc,
            FT_Long*        args )
@@ -2796,12 +2852,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* EVEN[]:       Is EVEN                                                 */
-  /* Opcode range: 0x57                                                    */
-  /* Stack:        f26.6 --> bool                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * EVEN[]:       Is EVEN
+   * Opcode range: 0x57
+   * Stack:        f26.6 --> bool
+   */
   static void
   Ins_EVEN( TT_ExecContext  exc,
             FT_Long*        args )
@@ -2810,12 +2866,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* AND[]:        logical AND                                             */
-  /* Opcode range: 0x5A                                                    */
-  /* Stack:        uint32 uint32 --> uint32                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * AND[]:        logical AND
+   * Opcode range: 0x5A
+   * Stack:        uint32 uint32 --> uint32
+   */
   static void
   Ins_AND( FT_Long*  args )
   {
@@ -2823,12 +2879,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* OR[]:         logical OR                                              */
-  /* Opcode range: 0x5B                                                    */
-  /* Stack:        uint32 uint32 --> uint32                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * OR[]:         logical OR
+   * Opcode range: 0x5B
+   * Stack:        uint32 uint32 --> uint32
+   */
   static void
   Ins_OR( FT_Long*  args )
   {
@@ -2836,12 +2892,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* NOT[]:        logical NOT                                             */
-  /* Opcode range: 0x5C                                                    */
-  /* Stack:        StkElt --> uint32                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * NOT[]:        logical NOT
+   * Opcode range: 0x5C
+   * Stack:        StkElt --> uint32
+   */
   static void
   Ins_NOT( FT_Long*  args )
   {
@@ -2849,12 +2905,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ADD[]:        ADD                                                     */
-  /* Opcode range: 0x60                                                    */
-  /* Stack:        f26.6 f26.6 --> f26.6                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ADD[]:        ADD
+   * Opcode range: 0x60
+   * Stack:        f26.6 f26.6 --> f26.6
+   */
   static void
   Ins_ADD( FT_Long*  args )
   {
@@ -2862,12 +2918,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SUB[]:        SUBtract                                                */
-  /* Opcode range: 0x61                                                    */
-  /* Stack:        f26.6 f26.6 --> f26.6                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SUB[]:        SUBtract
+   * Opcode range: 0x61
+   * Stack:        f26.6 f26.6 --> f26.6
+   */
   static void
   Ins_SUB( FT_Long*  args )
   {
@@ -2875,12 +2931,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DIV[]:        DIVide                                                  */
-  /* Opcode range: 0x62                                                    */
-  /* Stack:        f26.6 f26.6 --> f26.6                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DIV[]:        DIVide
+   * Opcode range: 0x62
+   * Stack:        f26.6 f26.6 --> f26.6
+   */
   static void
   Ins_DIV( TT_ExecContext  exc,
            FT_Long*        args )
@@ -2892,12 +2948,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MUL[]:        MULtiply                                                */
-  /* Opcode range: 0x63                                                    */
-  /* Stack:        f26.6 f26.6 --> f26.6                                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MUL[]:        MULtiply
+   * Opcode range: 0x63
+   * Stack:        f26.6 f26.6 --> f26.6
+   */
   static void
   Ins_MUL( FT_Long*  args )
   {
@@ -2905,12 +2961,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ABS[]:        ABSolute value                                          */
-  /* Opcode range: 0x64                                                    */
-  /* Stack:        f26.6 --> f26.6                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ABS[]:        ABSolute value
+   * Opcode range: 0x64
+   * Stack:        f26.6 --> f26.6
+   */
   static void
   Ins_ABS( FT_Long*  args )
   {
@@ -2919,12 +2975,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* NEG[]:        NEGate                                                  */
-  /* Opcode range: 0x65                                                    */
-  /* Stack:        f26.6 --> f26.6                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * NEG[]:        NEGate
+   * Opcode range: 0x65
+   * Stack:        f26.6 --> f26.6
+   */
   static void
   Ins_NEG( FT_Long*  args )
   {
@@ -2932,12 +2988,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FLOOR[]:      FLOOR                                                   */
-  /* Opcode range: 0x66                                                    */
-  /* Stack:        f26.6 --> f26.6                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FLOOR[]:      FLOOR
+   * Opcode range: 0x66
+   * Stack:        f26.6 --> f26.6
+   */
   static void
   Ins_FLOOR( FT_Long*  args )
   {
@@ -2945,12 +3001,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* CEILING[]:    CEILING                                                 */
-  /* Opcode range: 0x67                                                    */
-  /* Stack:        f26.6 --> f26.6                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * CEILING[]:    CEILING
+   * Opcode range: 0x67
+   * Stack:        f26.6 --> f26.6
+   */
   static void
   Ins_CEILING( FT_Long*  args )
   {
@@ -2958,12 +3014,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* RS[]:         Read Store                                              */
-  /* Opcode range: 0x43                                                    */
-  /* Stack:        uint32 --> uint32                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * RS[]:         Read Store
+   * Opcode range: 0x43
+   * Stack:        uint32 --> uint32
+   */
   static void
   Ins_RS( TT_ExecContext  exc,
           FT_Long*        args )
@@ -3004,12 +3060,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* WS[]:         Write Store                                             */
-  /* Opcode range: 0x42                                                    */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * WS[]:         Write Store
+   * Opcode range: 0x42
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_WS( TT_ExecContext  exc,
           FT_Long*        args )
@@ -3027,12 +3083,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* WCVTP[]:      Write CVT in Pixel units                                */
-  /* Opcode range: 0x44                                                    */
-  /* Stack:        f26.6 uint32 -->                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * WCVTP[]:      Write CVT in Pixel units
+   * Opcode range: 0x44
+   * Stack:        f26.6 uint32 -->
+   */
   static void
   Ins_WCVTP( TT_ExecContext  exc,
              FT_Long*        args )
@@ -3050,12 +3106,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* WCVTF[]:      Write CVT in Funits                                     */
-  /* Opcode range: 0x70                                                    */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * WCVTF[]:      Write CVT in Funits
+   * Opcode range: 0x70
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_WCVTF( TT_ExecContext  exc,
              FT_Long*        args )
@@ -3073,12 +3129,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* RCVT[]:       Read CVT                                                */
-  /* Opcode range: 0x45                                                    */
-  /* Stack:        uint32 --> f26.6                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * RCVT[]:       Read CVT
+   * Opcode range: 0x45
+   * Stack:        uint32 --> f26.6
+   */
   static void
   Ins_RCVT( TT_ExecContext  exc,
             FT_Long*        args )
@@ -3098,12 +3154,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* AA[]:         Adjust Angle                                            */
-  /* Opcode range: 0x7F                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * AA[]:         Adjust Angle
+   * Opcode range: 0x7F
+   * Stack:        uint32 -->
+   */
   static void
   Ins_AA( void )
   {
@@ -3111,14 +3167,14 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DEBUG[]:      DEBUG.  Unsupported.                                    */
-  /* Opcode range: 0x4F                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
-  /* Note: The original instruction pops a value from the stack.           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DEBUG[]:      DEBUG.  Unsupported.
+   * Opcode range: 0x4F
+   * Stack:        uint32 -->
+   *
+   * Note: The original instruction pops a value from the stack.
+   */
   static void
   Ins_DEBUG( TT_ExecContext  exc )
   {
@@ -3126,12 +3182,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ROUND[ab]:    ROUND value                                             */
-  /* Opcode range: 0x68-0x6B                                               */
-  /* Stack:        f26.6 --> f26.6                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ROUND[ab]:    ROUND value
+   * Opcode range: 0x68-0x6B
+   * Stack:        f26.6 --> f26.6
+   */
   static void
   Ins_ROUND( TT_ExecContext  exc,
              FT_Long*        args )
@@ -3143,12 +3199,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* NROUND[ab]:   No ROUNDing of value                                    */
-  /* Opcode range: 0x6C-0x6F                                               */
-  /* Stack:        f26.6 --> f26.6                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * NROUND[ab]:   No ROUNDing of value
+   * Opcode range: 0x6C-0x6F
+   * Stack:        f26.6 --> f26.6
+   */
   static void
   Ins_NROUND( TT_ExecContext  exc,
               FT_Long*        args )
@@ -3160,12 +3216,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MAX[]:        MAXimum                                                 */
-  /* Opcode range: 0x8B                                                    */
-  /* Stack:        int32? int32? --> int32                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MAX[]:        MAXimum
+   * Opcode range: 0x8B
+   * Stack:        int32? int32? --> int32
+   */
   static void
   Ins_MAX( FT_Long*  args )
   {
@@ -3174,12 +3230,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MIN[]:        MINimum                                                 */
-  /* Opcode range: 0x8C                                                    */
-  /* Stack:        int32? int32? --> int32                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MIN[]:        MINimum
+   * Opcode range: 0x8C
+   * Stack:        int32? int32? --> int32
+   */
   static void
   Ins_MIN( FT_Long*  args )
   {
@@ -3188,12 +3244,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MINDEX[]:     Move INDEXed element                                    */
-  /* Opcode range: 0x26                                                    */
-  /* Stack:        int32? --> StkElt                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MINDEX[]:     Move INDEXed element
+   * Opcode range: 0x26
+   * Stack:        int32? --> StkElt
+   */
   static void
   Ins_MINDEX( TT_ExecContext  exc,
               FT_Long*        args )
@@ -3221,12 +3277,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* CINDEX[]:     Copy INDEXed element                                    */
-  /* Opcode range: 0x25                                                    */
-  /* Stack:        int32 --> StkElt                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * CINDEX[]:     Copy INDEXed element
+   * Opcode range: 0x25
+   * Stack:        int32 --> StkElt
+   */
   static void
   Ins_CINDEX( TT_ExecContext  exc,
               FT_Long*        args )
@@ -3247,12 +3303,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ROLL[]:       ROLL top three elements                                 */
-  /* Opcode range: 0x8A                                                    */
-  /* Stack:        3 * StkElt --> 3 * StkElt                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ROLL[]:       ROLL top three elements
+   * Opcode range: 0x8A
+   * Stack:        3 * StkElt --> 3 * StkElt
+   */
   static void
   Ins_ROLL( FT_Long*  args )
   {
@@ -3269,19 +3325,19 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MANAGING THE FLOW OF CONTROL                                          */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * MANAGING THE FLOW OF CONTROL
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SLOOP[]:      Set LOOP variable                                       */
-  /* Opcode range: 0x17                                                    */
-  /* Stack:        int32? -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SLOOP[]:      Set LOOP variable
+   * Opcode range: 0x17
+   * Stack:        int32? -->
+   */
   static void
   Ins_SLOOP( TT_ExecContext  exc,
              FT_Long*        args )
@@ -3323,12 +3379,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* IF[]:         IF test                                                 */
-  /* Opcode range: 0x58                                                    */
-  /* Stack:        StkElt -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * IF[]:         IF test
+   * Opcode range: 0x58
+   * Stack:        StkElt -->
+   */
   static void
   Ins_IF( TT_ExecContext  exc,
           FT_Long*        args )
@@ -3367,12 +3423,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ELSE[]:       ELSE                                                    */
-  /* Opcode range: 0x1B                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ELSE[]:       ELSE
+   * Opcode range: 0x1B
+   * Stack:        -->
+   */
   static void
   Ins_ELSE( TT_ExecContext  exc )
   {
@@ -3400,12 +3456,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* EIF[]:        End IF                                                  */
-  /* Opcode range: 0x59                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * EIF[]:        End IF
+   * Opcode range: 0x59
+   * Stack:        -->
+   */
   static void
   Ins_EIF( void )
   {
@@ -3413,12 +3469,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* JMPR[]:       JuMP Relative                                           */
-  /* Opcode range: 0x1C                                                    */
-  /* Stack:        int32 -->                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * JMPR[]:       JuMP Relative
+   * Opcode range: 0x1C
+   * Stack:        int32 -->
+   */
   static void
   Ins_JMPR( TT_ExecContext  exc,
             FT_Long*        args )
@@ -3448,12 +3504,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* JROT[]:       Jump Relative On True                                   */
-  /* Opcode range: 0x78                                                    */
-  /* Stack:        StkElt int32 -->                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * JROT[]:       Jump Relative On True
+   * Opcode range: 0x78
+   * Stack:        StkElt int32 -->
+   */
   static void
   Ins_JROT( TT_ExecContext  exc,
             FT_Long*        args )
@@ -3463,12 +3519,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* JROF[]:       Jump Relative On False                                  */
-  /* Opcode range: 0x79                                                    */
-  /* Stack:        StkElt int32 -->                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * JROF[]:       Jump Relative On False
+   * Opcode range: 0x79
+   * Stack:        StkElt int32 -->
+   */
   static void
   Ins_JROF( TT_ExecContext  exc,
             FT_Long*        args )
@@ -3478,19 +3534,19 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DEFINING AND USING FUNCTIONS AND INSTRUCTIONS                         */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * DEFINING AND USING FUNCTIONS AND INSTRUCTIONS
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FDEF[]:       Function DEFinition                                     */
-  /* Opcode range: 0x2C                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FDEF[]:       Function DEFinition
+   * Opcode range: 0x2C
+   * Stack:        uint32 -->
+   */
   static void
   Ins_FDEF( TT_ExecContext  exc,
             FT_Long*        args )
@@ -3788,12 +3844,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ENDF[]:       END Function definition                                 */
-  /* Opcode range: 0x2D                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ENDF[]:       END Function definition
+   * Opcode range: 0x2D
+   * Stack:        -->
+   */
   static void
   Ins_ENDF( TT_ExecContext  exc )
   {
@@ -3837,12 +3893,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* CALL[]:       CALL function                                           */
-  /* Opcode range: 0x2B                                                    */
-  /* Stack:        uint32? -->                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * CALL[]:       CALL function
+   * Opcode range: 0x2B
+   * Stack:        uint32? -->
+   */
   static void
   Ins_CALL( TT_ExecContext  exc,
             FT_Long*        args )
@@ -3926,12 +3982,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* LOOPCALL[]:   LOOP and CALL function                                  */
-  /* Opcode range: 0x2A                                                    */
-  /* Stack:        uint32? Eint16? -->                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * LOOPCALL[]:   LOOP and CALL function
+   * Opcode range: 0x2A
+   * Stack:        uint32? Eint16? -->
+   */
   static void
   Ins_LOOPCALL( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -4019,12 +4075,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* IDEF[]:       Instruction DEFinition                                  */
-  /* Opcode range: 0x89                                                    */
-  /* Stack:        Eint8 -->                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * IDEF[]:       Instruction DEFinition
+   * Opcode range: 0x89
+   * Stack:        Eint8 -->
+   */
   static void
   Ins_IDEF( TT_ExecContext  exc,
             FT_Long*        args )
@@ -4094,19 +4150,19 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* PUSHING DATA ONTO THE INTERPRETER STACK                               */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * PUSHING DATA ONTO THE INTERPRETER STACK
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* NPUSHB[]:     PUSH N Bytes                                            */
-  /* Opcode range: 0x40                                                    */
-  /* Stack:        --> uint32...                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * NPUSHB[]:     PUSH N Bytes
+   * Opcode range: 0x40
+   * Stack:        --> uint32...
+   */
   static void
   Ins_NPUSHB( TT_ExecContext  exc,
               FT_Long*        args )
@@ -4129,12 +4185,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* NPUSHW[]:     PUSH N Words                                            */
-  /* Opcode range: 0x41                                                    */
-  /* Stack:        --> int32...                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * NPUSHW[]:     PUSH N Words
+   * Opcode range: 0x41
+   * Stack:        --> int32...
+   */
   static void
   Ins_NPUSHW( TT_ExecContext  exc,
               FT_Long*        args )
@@ -4160,12 +4216,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* PUSHB[abc]:   PUSH Bytes                                              */
-  /* Opcode range: 0xB0-0xB7                                               */
-  /* Stack:        --> uint32...                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * PUSHB[abc]:   PUSH Bytes
+   * Opcode range: 0xB0-0xB7
+   * Stack:        --> uint32...
+   */
   static void
   Ins_PUSHB( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4186,12 +4242,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* PUSHW[abc]:   PUSH Words                                              */
-  /* Opcode range: 0xB8-0xBF                                               */
-  /* Stack:        --> int32...                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * PUSHW[abc]:   PUSH Words
+   * Opcode range: 0xB8-0xBF
+   * Stack:        --> int32...
+   */
   static void
   Ins_PUSHW( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4216,11 +4272,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MANAGING THE GRAPHICS STATE                                           */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * MANAGING THE GRAPHICS STATE
+   *
+   */
 
 
   static FT_Bool
@@ -4274,20 +4330,20 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SVTCA[a]:     Set (F and P) Vectors to Coordinate Axis                */
-  /* Opcode range: 0x00-0x01                                               */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
-  /* SPvTCA[a]:    Set PVector to Coordinate Axis                          */
-  /* Opcode range: 0x02-0x03                                               */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
-  /* SFvTCA[a]:    Set FVector to Coordinate Axis                          */
-  /* Opcode range: 0x04-0x05                                               */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SVTCA[a]:     Set (F and P) Vectors to Coordinate Axis
+   * Opcode range: 0x00-0x01
+   * Stack:        -->
+   *
+   * SPvTCA[a]:    Set PVector to Coordinate Axis
+   * Opcode range: 0x02-0x03
+   * Stack:        -->
+   *
+   * SFvTCA[a]:    Set FVector to Coordinate Axis
+   * Opcode range: 0x04-0x05
+   * Stack:        -->
+   */
   static void
   Ins_SxyTCA( TT_ExecContext  exc )
   {
@@ -4318,12 +4374,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SPvTL[a]:     Set PVector To Line                                     */
-  /* Opcode range: 0x06-0x07                                               */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SPvTL[a]:     Set PVector To Line
+   * Opcode range: 0x06-0x07
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_SPVTL( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4339,12 +4395,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SFvTL[a]:     Set FVector To Line                                     */
-  /* Opcode range: 0x08-0x09                                               */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SFvTL[a]:     Set FVector To Line
+   * Opcode range: 0x08-0x09
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_SFVTL( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4359,12 +4415,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SFvTPv[]:     Set FVector To PVector                                  */
-  /* Opcode range: 0x0E                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SFvTPv[]:     Set FVector To PVector
+   * Opcode range: 0x0E
+   * Stack:        -->
+   */
   static void
   Ins_SFVTPV( TT_ExecContext  exc )
   {
@@ -4373,12 +4429,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SPvFS[]:      Set PVector From Stack                                  */
-  /* Opcode range: 0x0A                                                    */
-  /* Stack:        f2.14 f2.14 -->                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SPvFS[]:      Set PVector From Stack
+   * Opcode range: 0x0A
+   * Stack:        f2.14 f2.14 -->
+   */
   static void
   Ins_SPVFS( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4400,12 +4456,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SFvFS[]:      Set FVector From Stack                                  */
-  /* Opcode range: 0x0B                                                    */
-  /* Stack:        f2.14 f2.14 -->                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SFvFS[]:      Set FVector From Stack
+   * Opcode range: 0x0B
+   * Stack:        f2.14 f2.14 -->
+   */
   static void
   Ins_SFVFS( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4425,12 +4481,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GPv[]:        Get Projection Vector                                   */
-  /* Opcode range: 0x0C                                                    */
-  /* Stack:        ef2.14 --> ef2.14                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GPv[]:        Get Projection Vector
+   * Opcode range: 0x0C
+   * Stack:        ef2.14 --> ef2.14
+   */
   static void
   Ins_GPV( TT_ExecContext  exc,
            FT_Long*        args )
@@ -4440,12 +4496,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GFv[]:        Get Freedom Vector                                      */
-  /* Opcode range: 0x0D                                                    */
-  /* Stack:        ef2.14 --> ef2.14                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GFv[]:        Get Freedom Vector
+   * Opcode range: 0x0D
+   * Stack:        ef2.14 --> ef2.14
+   */
   static void
   Ins_GFV( TT_ExecContext  exc,
            FT_Long*        args )
@@ -4455,12 +4511,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SRP0[]:       Set Reference Point 0                                   */
-  /* Opcode range: 0x10                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SRP0[]:       Set Reference Point 0
+   * Opcode range: 0x10
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SRP0( TT_ExecContext  exc,
             FT_Long*        args )
@@ -4469,12 +4525,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SRP1[]:       Set Reference Point 1                                   */
-  /* Opcode range: 0x11                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SRP1[]:       Set Reference Point 1
+   * Opcode range: 0x11
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SRP1( TT_ExecContext  exc,
             FT_Long*        args )
@@ -4483,12 +4539,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SRP2[]:       Set Reference Point 2                                   */
-  /* Opcode range: 0x12                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SRP2[]:       Set Reference Point 2
+   * Opcode range: 0x12
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SRP2( TT_ExecContext  exc,
             FT_Long*        args )
@@ -4497,12 +4553,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SMD[]:        Set Minimum Distance                                    */
-  /* Opcode range: 0x1A                                                    */
-  /* Stack:        f26.6 -->                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SMD[]:        Set Minimum Distance
+   * Opcode range: 0x1A
+   * Stack:        f26.6 -->
+   */
   static void
   Ins_SMD( TT_ExecContext  exc,
            FT_Long*        args )
@@ -4511,12 +4567,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SCVTCI[]:     Set Control Value Table Cut In                          */
-  /* Opcode range: 0x1D                                                    */
-  /* Stack:        f26.6 -->                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SCVTCI[]:     Set Control Value Table Cut In
+   * Opcode range: 0x1D
+   * Stack:        f26.6 -->
+   */
   static void
   Ins_SCVTCI( TT_ExecContext  exc,
               FT_Long*        args )
@@ -4525,12 +4581,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SSWCI[]:      Set Single Width Cut In                                 */
-  /* Opcode range: 0x1E                                                    */
-  /* Stack:        f26.6 -->                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SSWCI[]:      Set Single Width Cut In
+   * Opcode range: 0x1E
+   * Stack:        f26.6 -->
+   */
   static void
   Ins_SSWCI( TT_ExecContext  exc,
              FT_Long*        args )
@@ -4539,12 +4595,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SSW[]:        Set Single Width                                        */
-  /* Opcode range: 0x1F                                                    */
-  /* Stack:        int32? -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SSW[]:        Set Single Width
+   * Opcode range: 0x1F
+   * Stack:        int32? -->
+   */
   static void
   Ins_SSW( TT_ExecContext  exc,
            FT_Long*        args )
@@ -4554,12 +4610,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FLIPON[]:     Set auto-FLIP to ON                                     */
-  /* Opcode range: 0x4D                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FLIPON[]:     Set auto-FLIP to ON
+   * Opcode range: 0x4D
+   * Stack:        -->
+   */
   static void
   Ins_FLIPON( TT_ExecContext  exc )
   {
@@ -4567,12 +4623,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FLIPOFF[]:    Set auto-FLIP to OFF                                    */
-  /* Opcode range: 0x4E                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FLIPOFF[]:    Set auto-FLIP to OFF
+   * Opcode range: 0x4E
+   * Stack:        -->
+   */
   static void
   Ins_FLIPOFF( TT_ExecContext  exc )
   {
@@ -4580,12 +4636,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SANGW[]:      Set ANGle Weight                                        */
-  /* Opcode range: 0x7E                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SANGW[]:      Set ANGle Weight
+   * Opcode range: 0x7E
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SANGW( void )
   {
@@ -4593,12 +4649,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SDB[]:        Set Delta Base                                          */
-  /* Opcode range: 0x5E                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SDB[]:        Set Delta Base
+   * Opcode range: 0x5E
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SDB( TT_ExecContext  exc,
            FT_Long*        args )
@@ -4607,12 +4663,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SDS[]:        Set Delta Shift                                         */
-  /* Opcode range: 0x5F                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SDS[]:        Set Delta Shift
+   * Opcode range: 0x5F
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SDS( TT_ExecContext  exc,
            FT_Long*        args )
@@ -4624,12 +4680,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* RTHG[]:       Round To Half Grid                                      */
-  /* Opcode range: 0x19                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * RTHG[]:       Round To Half Grid
+   * Opcode range: 0x19
+   * Stack:        -->
+   */
   static void
   Ins_RTHG( TT_ExecContext  exc )
   {
@@ -4638,12 +4694,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* RTG[]:        Round To Grid                                           */
-  /* Opcode range: 0x18                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * RTG[]:        Round To Grid
+   * Opcode range: 0x18
+   * Stack:        -->
+   */
   static void
   Ins_RTG( TT_ExecContext  exc )
   {
@@ -4652,11 +4708,11 @@
   }
 
 
-  /*************************************************************************/
-  /* RTDG[]:       Round To Double Grid                                    */
-  /* Opcode range: 0x3D                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   * RTDG[]:       Round To Double Grid
+   * Opcode range: 0x3D
+   * Stack:        -->
+   */
   static void
   Ins_RTDG( TT_ExecContext  exc )
   {
@@ -4665,11 +4721,11 @@
   }
 
 
-  /*************************************************************************/
-  /* RUTG[]:       Round Up To Grid                                        */
-  /* Opcode range: 0x7C                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   * RUTG[]:       Round Up To Grid
+   * Opcode range: 0x7C
+   * Stack:        -->
+   */
   static void
   Ins_RUTG( TT_ExecContext  exc )
   {
@@ -4678,12 +4734,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* RDTG[]:       Round Down To Grid                                      */
-  /* Opcode range: 0x7D                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * RDTG[]:       Round Down To Grid
+   * Opcode range: 0x7D
+   * Stack:        -->
+   */
   static void
   Ins_RDTG( TT_ExecContext  exc )
   {
@@ -4692,12 +4748,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ROFF[]:       Round OFF                                               */
-  /* Opcode range: 0x7A                                                    */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ROFF[]:       Round OFF
+   * Opcode range: 0x7A
+   * Stack:        -->
+   */
   static void
   Ins_ROFF( TT_ExecContext  exc )
   {
@@ -4706,12 +4762,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SROUND[]:     Super ROUND                                             */
-  /* Opcode range: 0x76                                                    */
-  /* Stack:        Eint8 -->                                               */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SROUND[]:     Super ROUND
+   * Opcode range: 0x76
+   * Stack:        Eint8 -->
+   */
   static void
   Ins_SROUND( TT_ExecContext  exc,
               FT_Long*        args )
@@ -4723,12 +4779,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* S45ROUND[]:   Super ROUND 45 degrees                                  */
-  /* Opcode range: 0x77                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * S45ROUND[]:   Super ROUND 45 degrees
+   * Opcode range: 0x77
+   * Stack:        uint32 -->
+   */
   static void
   Ins_S45ROUND( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -4740,15 +4796,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GC[a]:        Get Coordinate projected onto                           */
-  /* Opcode range: 0x46-0x47                                               */
-  /* Stack:        uint32 --> f26.6                                        */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED: Measures from the original glyph must be taken     */
-  /*      along the dual projection vector!                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GC[a]:        Get Coordinate projected onto
+   * Opcode range: 0x46-0x47
+   * Stack:        uint32 --> f26.6
+   *
+   * XXX: UNDOCUMENTED: Measures from the original glyph must be taken
+   *      along the dual projection vector!
+   */
   static void
   Ins_GC( TT_ExecContext  exc,
           FT_Long*        args )
@@ -4777,16 +4833,16 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SCFS[]:       Set Coordinate From Stack                               */
-  /* Opcode range: 0x48                                                    */
-  /* Stack:        f26.6 uint32 -->                                        */
-  /*                                                                       */
-  /* Formula:                                                              */
-  /*                                                                       */
-  /*   OA := OA + ( value - OA.p )/( f.p ) * f                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SCFS[]:       Set Coordinate From Stack
+   * Opcode range: 0x48
+   * Stack:        f26.6 uint32 -->
+   *
+   * Formula:
+   *
+   *   OA := OA + ( value - OA.p )/( f.p ) * f
+   */
   static void
   Ins_SCFS( TT_ExecContext  exc,
             FT_Long*        args )
@@ -4815,21 +4871,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MD[a]:        Measure Distance                                        */
-  /* Opcode range: 0x49-0x4A                                               */
-  /* Stack:        uint32 uint32 --> f26.6                                 */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED: Measure taken in the original glyph must be along  */
-  /*                    the dual projection vector.                        */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED: Flag attributes are inverted!                      */
-  /*                      0 => measure distance in original outline        */
-  /*                      1 => measure distance in grid-fitted outline     */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED: `zp0 - zp1', and not `zp2 - zp1!                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MD[a]:        Measure Distance
+   * Opcode range: 0x49-0x4A
+   * Stack:        uint32 uint32 --> f26.6
+   *
+   * XXX: UNDOCUMENTED: Measure taken in the original glyph must be along
+   *                    the dual projection vector.
+   *
+   * XXX: UNDOCUMENTED: Flag attributes are inverted!
+   *                      0 => measure distance in original outline
+   *                      1 => measure distance in grid-fitted outline
+   *
+   * XXX: UNDOCUMENTED: `zp0 - zp1', and not `zp2 - zp1!
+   */
   static void
   Ins_MD( TT_ExecContext  exc,
           FT_Long*        args )
@@ -4902,12 +4958,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SDPvTL[a]:    Set Dual PVector to Line                                */
-  /* Opcode range: 0x86-0x87                                               */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SDPvTL[a]:    Set Dual PVector to Line
+   * Opcode range: 0x86-0x87
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_SDPVTL( TT_ExecContext  exc,
               FT_Long*        args )
@@ -4985,12 +5041,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SZP0[]:       Set Zone Pointer 0                                      */
-  /* Opcode range: 0x13                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SZP0[]:       Set Zone Pointer 0
+   * Opcode range: 0x13
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SZP0( TT_ExecContext  exc,
             FT_Long*        args )
@@ -5015,12 +5071,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SZP1[]:       Set Zone Pointer 1                                      */
-  /* Opcode range: 0x14                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SZP1[]:       Set Zone Pointer 1
+   * Opcode range: 0x14
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SZP1( TT_ExecContext  exc,
             FT_Long*        args )
@@ -5045,12 +5101,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SZP2[]:       Set Zone Pointer 2                                      */
-  /* Opcode range: 0x15                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SZP2[]:       Set Zone Pointer 2
+   * Opcode range: 0x15
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SZP2( TT_ExecContext  exc,
             FT_Long*        args )
@@ -5075,12 +5131,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SZPS[]:       Set Zone PointerS                                       */
-  /* Opcode range: 0x16                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SZPS[]:       Set Zone PointerS
+   * Opcode range: 0x16
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SZPS( TT_ExecContext  exc,
             FT_Long*        args )
@@ -5110,12 +5166,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* INSTCTRL[]:   INSTruction ConTRoL                                     */
-  /* Opcode range: 0x8E                                                    */
-  /* Stack:        int32 int32 -->                                         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * INSTCTRL[]:   INSTruction ConTRoL
+   * Opcode range: 0x8E
+   * Stack:        int32 int32 -->
+   */
   static void
   Ins_INSTCTRL( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -5172,12 +5228,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SCANCTRL[]:   SCAN ConTRoL                                            */
-  /* Opcode range: 0x85                                                    */
-  /* Stack:        uint32? -->                                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SCANCTRL[]:   SCAN ConTRoL
+   * Opcode range: 0x85
+   * Stack:        uint32? -->
+   */
   static void
   Ins_SCANCTRL( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -5219,12 +5275,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SCANTYPE[]:   SCAN TYPE                                               */
-  /* Opcode range: 0x8D                                                    */
-  /* Stack:        uint16 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SCANTYPE[]:   SCAN TYPE
+   * Opcode range: 0x8D
+   * Stack:        uint16 -->
+   */
   static void
   Ins_SCANTYPE( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -5234,19 +5290,19 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MANAGING OUTLINES                                                     */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * MANAGING OUTLINES
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FLIPPT[]:     FLIP PoinT                                              */
-  /* Opcode range: 0x80                                                    */
-  /* Stack:        uint32... -->                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FLIPPT[]:     FLIP PoinT
+   * Opcode range: 0x80
+   * Stack:        uint32... -->
+   */
   static void
   Ins_FLIPPT( TT_ExecContext  exc )
   {
@@ -5295,12 +5351,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FLIPRGON[]:   FLIP RanGe ON                                           */
-  /* Opcode range: 0x81                                                    */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FLIPRGON[]:   FLIP RanGe ON
+   * Opcode range: 0x81
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_FLIPRGON( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -5333,12 +5389,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* FLIPRGOFF:    FLIP RanGe OFF                                          */
-  /* Opcode range: 0x82                                                    */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * FLIPRGOFF:    FLIP RanGe OFF
+   * Opcode range: 0x82
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_FLIPRGOFF( TT_ExecContext  exc,
                  FT_Long*        args )
@@ -5450,12 +5506,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SHP[a]:       SHift Point by the last point                           */
-  /* Opcode range: 0x32-0x33                                               */
-  /* Stack:        uint32... -->                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SHP[a]:       SHift Point by the last point
+   * Opcode range: 0x32-0x33
+   * Stack:        uint32... -->
+   */
   static void
   Ins_SHP( TT_ExecContext  exc )
   {
@@ -5507,16 +5563,16 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SHC[a]:       SHift Contour                                           */
-  /* Opcode range: 0x34-35                                                 */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
-  /* UNDOCUMENTED: According to Greg Hitchcock, there is one (virtual)     */
-  /*               contour in the twilight zone, namely contour number     */
-  /*               zero which includes all points of it.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SHC[a]:       SHift Contour
+   * Opcode range: 0x34-35
+   * Stack:        uint32 -->
+   *
+   * UNDOCUMENTED: According to Greg Hitchcock, there is one (virtual)
+   *               contour in the twilight zone, namely contour number
+   *               zero which includes all points of it.
+   */
   static void
   Ins_SHC( TT_ExecContext  exc,
            FT_Long*        args )
@@ -5563,12 +5619,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SHZ[a]:       SHift Zone                                              */
-  /* Opcode range: 0x36-37                                                 */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SHZ[a]:       SHift Zone
+   * Opcode range: 0x36-37
+   * Stack:        uint32 -->
+   */
   static void
   Ins_SHZ( TT_ExecContext  exc,
            FT_Long*        args )
@@ -5611,12 +5667,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* SHPIX[]:      SHift points by a PIXel amount                          */
-  /* Opcode range: 0x38                                                    */
-  /* Stack:        f26.6 uint32... -->                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * SHPIX[]:      SHift points by a PIXel amount
+   * Opcode range: 0x38
+   * Stack:        f26.6 uint32... -->
+   */
   static void
   Ins_SHPIX( TT_ExecContext  exc,
              FT_Long*        args )
@@ -5771,12 +5827,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MSIRP[a]:     Move Stack Indirect Relative Position                   */
-  /* Opcode range: 0x3A-0x3B                                               */
-  /* Stack:        f26.6 uint32 -->                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MSIRP[a]:     Move Stack Indirect Relative Position
+   * Opcode range: 0x3A-0x3B
+   * Stack:        f26.6 uint32 -->
+   */
   static void
   Ins_MSIRP( TT_ExecContext  exc,
              FT_Long*        args )
@@ -5846,12 +5902,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MDAP[a]:      Move Direct Absolute Point                              */
-  /* Opcode range: 0x2E-0x2F                                               */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MDAP[a]:      Move Direct Absolute Point
+   * Opcode range: 0x2E-0x2F
+   * Stack:        uint32 -->
+   */
   static void
   Ins_MDAP( TT_ExecContext  exc,
             FT_Long*        args )
@@ -5900,12 +5956,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MIAP[a]:      Move Indirect Absolute Point                            */
-  /* Opcode range: 0x3E-0x3F                                               */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MIAP[a]:      Move Indirect Absolute Point
+   * Opcode range: 0x3E-0x3F
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_MIAP( TT_ExecContext  exc,
             FT_Long*        args )
@@ -6020,12 +6076,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MDRP[abcde]:  Move Direct Relative Point                              */
-  /* Opcode range: 0xC0-0xDF                                               */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MDRP[abcde]:  Move Direct Relative Point
+   * Opcode range: 0xC0-0xDF
+   * Stack:        uint32 -->
+   */
   static void
   Ins_MDRP( TT_ExecContext  exc,
             FT_Long*        args )
@@ -6164,12 +6220,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MIRP[abcde]:  Move Indirect Relative Point                            */
-  /* Opcode range: 0xE0-0xFF                                               */
-  /* Stack:        int32? uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * MIRP[abcde]:  Move Indirect Relative Point
+   * Opcode range: 0xE0-0xFF
+   * Stack:        int32? uint32 -->
+   */
   static void
   Ins_MIRP( TT_ExecContext  exc,
             FT_Long*        args )
@@ -6189,6 +6245,8 @@
     FT_Bool     reverse_move = FALSE;
 #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */
 
+    FT_F26Dot6  delta;
+
 
     minimum_distance    = exc->GS.minimum_distance;
     control_value_cutin = exc->GS.control_value_cutin;
@@ -6221,8 +6279,11 @@
 
     /* single width test */
 
-    if ( FT_ABS( cvt_dist - exc->GS.single_width_value ) <
-         exc->GS.single_width_cutin )
+    delta = SUB_LONG( cvt_dist, exc->GS.single_width_value );
+    if ( delta < 0 )
+      delta = NEG_LONG( delta );
+
+    if ( delta < exc->GS.single_width_cutin )
     {
       if ( cvt_dist >= 0 )
         cvt_dist =  exc->GS.single_width_value;
@@ -6251,7 +6312,7 @@
     if ( exc->GS.auto_flip )
     {
       if ( ( org_dist ^ cvt_dist ) < 0 )
-        cvt_dist = -cvt_dist;
+        cvt_dist = NEG_LONG( cvt_dist );
     }
 
 #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
@@ -6276,9 +6337,6 @@
 
       if ( exc->GS.gep0 == exc->GS.gep1 )
       {
-        FT_F26Dot6  delta;
-
-
         /* XXX: According to Greg Hitchcock, the following wording is */
         /*      the right one:                                        */
         /*                                                            */
@@ -6313,9 +6371,6 @@
            exc->ignore_x_mode           &&
            exc->GS.gep0 == exc->GS.gep1 )
       {
-        FT_F26Dot6  delta;
-
-
         delta = SUB_LONG( cvt_dist, org_dist );
         if ( delta < 0 )
           delta = NEG_LONG( delta );
@@ -6412,12 +6467,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ALIGNRP[]:    ALIGN Relative Point                                    */
-  /* Opcode range: 0x3C                                                    */
-  /* Stack:        uint32 uint32... -->                                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ALIGNRP[]:    ALIGN Relative Point
+   * Opcode range: 0x3C
+   * Stack:        uint32 uint32... -->
+   */
   static void
   Ins_ALIGNRP( TT_ExecContext  exc )
   {
@@ -6475,12 +6530,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ISECT[]:      moves point to InterSECTion                             */
-  /* Opcode range: 0x0F                                                    */
-  /* Stack:        5 * uint32 -->                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ISECT[]:      moves point to InterSECTion
+   * Opcode range: 0x0F
+   * Stack:        5 * uint32 -->
+   */
   static void
   Ins_ISECT( TT_ExecContext  exc,
              FT_Long*        args )
@@ -6571,12 +6626,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ALIGNPTS[]:   ALIGN PoinTS                                            */
-  /* Opcode range: 0x27                                                    */
-  /* Stack:        uint32 uint32 -->                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ALIGNPTS[]:   ALIGN PoinTS
+   * Opcode range: 0x27
+   * Stack:        uint32 uint32 -->
+   */
   static void
   Ins_ALIGNPTS( TT_ExecContext  exc,
                 FT_Long*        args )
@@ -6603,12 +6658,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* IP[]:         Interpolate Point                                       */
-  /* Opcode range: 0x39                                                    */
-  /* Stack:        uint32... -->                                           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * IP[]:         Interpolate Point
+   * Opcode range: 0x39
+   * Stack:        uint32... -->
+   */
 
   /* SOMETIMES, DUMBER CODE IS BETTER CODE */
 
@@ -6763,12 +6818,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* UTP[a]:       UnTouch Point                                           */
-  /* Opcode range: 0x29                                                    */
-  /* Stack:        uint32 -->                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * UTP[a]:       UnTouch Point
+   * Opcode range: 0x29
+   * Stack:        uint32 -->
+   */
   static void
   Ins_UTP( TT_ExecContext  exc,
            FT_Long*        args )
@@ -6932,12 +6987,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* IUP[a]:       Interpolate Untouched Points                            */
-  /* Opcode range: 0x30-0x31                                               */
-  /* Stack:        -->                                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * IUP[a]:       Interpolate Untouched Points
+   * Opcode range: 0x30-0x31
+   * Stack:        -->
+   */
   static void
   Ins_IUP( TT_ExecContext  exc )
   {
@@ -7060,12 +7115,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DELTAPn[]:    DELTA exceptions P1, P2, P3                             */
-  /* Opcode range: 0x5D,0x71,0x72                                          */
-  /* Stack:        uint32 (2 * uint32)... -->                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DELTAPn[]:    DELTA exceptions P1, P2, P3
+   * Opcode range: 0x5D,0x71,0x72
+   * Stack:        uint32 (2 * uint32)... -->
+   */
   static void
   Ins_DELTAP( TT_ExecContext  exc,
               FT_Long*        args )
@@ -7142,12 +7197,12 @@
           if ( SUBPIXEL_HINTING_INFINALITY )
           {
             /*
-             *  Allow delta move if
+             * Allow delta move if
              *
-             *  - not using ignore_x_mode rendering,
-             *  - glyph is specifically set to allow it, or
-             *  - glyph is composite and freedom vector is not in subpixel
-             *    direction.
+             * - not using ignore_x_mode rendering,
+             * - glyph is specifically set to allow it, or
+             * - glyph is composite and freedom vector is not in subpixel
+             *   direction.
              */
             if ( !exc->ignore_x_mode                                   ||
                  ( exc->sph_tweak_flags & SPH_TWEAK_ALWAYS_DO_DELTAP ) ||
@@ -7227,12 +7282,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* DELTACn[]:    DELTA exceptions C1, C2, C3                             */
-  /* Opcode range: 0x73,0x74,0x75                                          */
-  /* Stack:        uint32 (2 * uint32)... -->                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * DELTACn[]:    DELTA exceptions C1, C2, C3
+   * Opcode range: 0x73,0x74,0x75
+   * Stack:        uint32 (2 * uint32)... -->
+   */
   static void
   Ins_DELTAC( TT_ExecContext  exc,
               FT_Long*        args )
@@ -7305,27 +7360,27 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* MISC. INSTRUCTIONS                                                    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * MISC. INSTRUCTIONS
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GETINFO[]:    GET INFOrmation                                         */
-  /* Opcode range: 0x88                                                    */
-  /* Stack:        uint32 --> uint32                                       */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED: Selector bits higher than 9 are currently (May     */
-  /*      2015) not documented in the OpenType specification.              */
-  /*                                                                       */
-  /*      Selector bit 11 is incorrectly described as bit 8, while the     */
-  /*      real meaning of bit 8 (vertical LCD subpixels) stays             */
-  /*      undocumented.  The same mistake can be found in Greg Hitchcock's */
-  /*      whitepaper.                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GETINFO[]:    GET INFOrmation
+   * Opcode range: 0x88
+   * Stack:        uint32 --> uint32
+   *
+   * XXX: UNDOCUMENTED: Selector bits higher than 9 are currently (May
+   *      2015) not documented in the OpenType specification.
+   *
+   *      Selector bit 11 is incorrectly described as bit 8, while the
+   *      real meaning of bit 8 (vertical LCD subpixels) stays
+   *      undocumented.  The same mistake can be found in Greg Hitchcock's
+   *      whitepaper.
+   */
   static void
   Ins_GETINFO( TT_ExecContext  exc,
                FT_Long*        args )
@@ -7337,11 +7392,11 @@
     K = 0;
 
 #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
-    /********************************/
-    /* RASTERIZER VERSION           */
-    /* Selector Bit:  0             */
-    /* Return Bit(s): 0-7           */
-    /*                              */
+    /*********************************
+     * RASTERIZER VERSION
+     * Selector Bit:  0
+     * Return Bit(s): 0-7
+     */
     if ( SUBPIXEL_HINTING_INFINALITY &&
          ( args[0] & 1 ) != 0        &&
          exc->subpixel_hinting       )
@@ -7362,39 +7417,40 @@
       if ( ( args[0] & 1 ) != 0 )
         K = driver->interpreter_version;
 
-    /********************************/
-    /* GLYPH ROTATED                */
-    /* Selector Bit:  1             */
-    /* Return Bit(s): 8             */
-    /*                              */
+    /*********************************
+     * GLYPH ROTATED
+     * Selector Bit:  1
+     * Return Bit(s): 8
+     */
     if ( ( args[0] & 2 ) != 0 && exc->tt_metrics.rotated )
       K |= 1 << 8;
 
-    /********************************/
-    /* GLYPH STRETCHED              */
-    /* Selector Bit:  2             */
-    /* Return Bit(s): 9             */
-    /*                              */
+    /*********************************
+     * GLYPH STRETCHED
+     * Selector Bit:  2
+     * Return Bit(s): 9
+     */
     if ( ( args[0] & 4 ) != 0 && exc->tt_metrics.stretched )
       K |= 1 << 9;
 
 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-    /********************************/
-    /* VARIATION GLYPH              */
-    /* Selector Bit:  3             */
-    /* Return Bit(s): 10            */
-    /*                              */
-    /* XXX: UNDOCUMENTED!           */
+    /*********************************
+     * VARIATION GLYPH
+     * Selector Bit:  3
+     * Return Bit(s): 10
+     *
+     * XXX: UNDOCUMENTED!
+     */
     if ( (args[0] & 8 ) != 0 && exc->face->blend )
       K |= 1 << 10;
 #endif
 
-    /********************************/
-    /* BI-LEVEL HINTING AND         */
-    /* GRAYSCALE RENDERING          */
-    /* Selector Bit:  5             */
-    /* Return Bit(s): 12            */
-    /*                              */
+    /*********************************
+     * BI-LEVEL HINTING AND
+     * GRAYSCALE RENDERING
+     * Selector Bit:  5
+     * Return Bit(s): 12
+     */
     if ( ( args[0] & 32 ) != 0 && exc->grayscale )
       K |= 1 << 12;
 
@@ -7405,50 +7461,54 @@
     /* Bold Italic'. */
     if ( SUBPIXEL_HINTING_MINIMAL && exc->subpixel_hinting_lean )
     {
-      /********************************/
-      /* HINTING FOR SUBPIXEL         */
-      /* Selector Bit:  6             */
-      /* Return Bit(s): 13            */
-      /*                              */
-      /* v40 does subpixel hinting by default. */
+      /*********************************
+       * HINTING FOR SUBPIXEL
+       * Selector Bit:  6
+       * Return Bit(s): 13
+       *
+       * v40 does subpixel hinting by default.
+       */
       if ( ( args[0] & 64 ) != 0 )
         K |= 1 << 13;
 
-      /********************************/
-      /* VERTICAL LCD SUBPIXELS?      */
-      /* Selector Bit:  8             */
-      /* Return Bit(s): 15            */
-      /*                              */
+      /*********************************
+       * VERTICAL LCD SUBPIXELS?
+       * Selector Bit:  8
+       * Return Bit(s): 15
+       */
       if ( ( args[0] & 256 ) != 0 && exc->vertical_lcd_lean )
         K |= 1 << 15;
 
-      /********************************/
-      /* SUBPIXEL POSITIONED?         */
-      /* Selector Bit:  10            */
-      /* Return Bit(s): 17            */
-      /*                              */
-      /* XXX: FreeType supports it, dependent on what client does? */
+      /*********************************
+       * SUBPIXEL POSITIONED?
+       * Selector Bit:  10
+       * Return Bit(s): 17
+       *
+       * XXX: FreeType supports it, dependent on what client does?
+       */
       if ( ( args[0] & 1024 ) != 0 )
         K |= 1 << 17;
 
-      /********************************/
-      /* SYMMETRICAL SMOOTHING        */
-      /* Selector Bit:  11            */
-      /* Return Bit(s): 18            */
-      /*                              */
-      /* The only smoothing method FreeType supports unless someone sets */
-      /* FT_LOAD_TARGET_MONO.                                            */
+      /*********************************
+       * SYMMETRICAL SMOOTHING
+       * Selector Bit:  11
+       * Return Bit(s): 18
+       *
+       * The only smoothing method FreeType supports unless someone sets
+       * FT_LOAD_TARGET_MONO.
+       */
       if ( ( args[0] & 2048 ) != 0 && exc->subpixel_hinting_lean )
         K |= 1 << 18;
 
-      /********************************/
-      /* CLEARTYPE HINTING AND        */
-      /* GRAYSCALE RENDERING          */
-      /* Selector Bit:  12            */
-      /* Return Bit(s): 19            */
-      /*                              */
-      /* Grayscale rendering is what FreeType does anyway unless someone */
-      /* sets FT_LOAD_TARGET_MONO or FT_LOAD_TARGET_LCD(_V)              */
+      /*********************************
+       * CLEARTYPE HINTING AND
+       * GRAYSCALE RENDERING
+       * Selector Bit:  12
+       * Return Bit(s): 19
+       *
+       * Grayscale rendering is what FreeType does anyway unless someone
+       * sets FT_LOAD_TARGET_MONO or FT_LOAD_TARGET_LCD(_V)
+       */
       if ( ( args[0] & 4096 ) != 0 && exc->grayscale_cleartype )
         K |= 1 << 19;
     }
@@ -7462,67 +7522,73 @@
 
       if ( exc->rasterizer_version >= 37 )
       {
-        /********************************/
-        /* HINTING FOR SUBPIXEL         */
-        /* Selector Bit:  6             */
-        /* Return Bit(s): 13            */
-        /*                              */
+        /*********************************
+         * HINTING FOR SUBPIXEL
+         * Selector Bit:  6
+         * Return Bit(s): 13
+         */
         if ( ( args[0] & 64 ) != 0 && exc->subpixel_hinting )
           K |= 1 << 13;
 
-        /********************************/
-        /* COMPATIBLE WIDTHS ENABLED    */
-        /* Selector Bit:  7             */
-        /* Return Bit(s): 14            */
-        /*                              */
-        /* Functionality still needs to be added */
+        /*********************************
+         * COMPATIBLE WIDTHS ENABLED
+         * Selector Bit:  7
+         * Return Bit(s): 14
+         *
+         * Functionality still needs to be added
+         */
         if ( ( args[0] & 128 ) != 0 && exc->compatible_widths )
           K |= 1 << 14;
 
-        /********************************/
-        /* VERTICAL LCD SUBPIXELS?      */
-        /* Selector Bit:  8             */
-        /* Return Bit(s): 15            */
-        /*                              */
-        /* Functionality still needs to be added */
+        /*********************************
+         * VERTICAL LCD SUBPIXELS?
+         * Selector Bit:  8
+         * Return Bit(s): 15
+         *
+         * Functionality still needs to be added
+         */
         if ( ( args[0] & 256 ) != 0 && exc->vertical_lcd )
           K |= 1 << 15;
 
-        /********************************/
-        /* HINTING FOR BGR?             */
-        /* Selector Bit:  9             */
-        /* Return Bit(s): 16            */
-        /*                              */
-        /* Functionality still needs to be added */
+        /*********************************
+         * HINTING FOR BGR?
+         * Selector Bit:  9
+         * Return Bit(s): 16
+         *
+         * Functionality still needs to be added
+         */
         if ( ( args[0] & 512 ) != 0 && exc->bgr )
           K |= 1 << 16;
 
         if ( exc->rasterizer_version >= 38 )
         {
-          /********************************/
-          /* SUBPIXEL POSITIONED?         */
-          /* Selector Bit:  10            */
-          /* Return Bit(s): 17            */
-          /*                              */
-          /* Functionality still needs to be added */
+          /*********************************
+           * SUBPIXEL POSITIONED?
+           * Selector Bit:  10
+           * Return Bit(s): 17
+           *
+           * Functionality still needs to be added
+           */
           if ( ( args[0] & 1024 ) != 0 && exc->subpixel_positioned )
             K |= 1 << 17;
 
-          /********************************/
-          /* SYMMETRICAL SMOOTHING        */
-          /* Selector Bit:  11            */
-          /* Return Bit(s): 18            */
-          /*                              */
-          /* Functionality still needs to be added */
+          /*********************************
+           * SYMMETRICAL SMOOTHING
+           * Selector Bit:  11
+           * Return Bit(s): 18
+           *
+           * Functionality still needs to be added
+           */
           if ( ( args[0] & 2048 ) != 0 && exc->symmetrical_smoothing )
             K |= 1 << 18;
 
-          /********************************/
-          /* GRAY CLEARTYPE               */
-          /* Selector Bit:  12            */
-          /* Return Bit(s): 19            */
-          /*                              */
-          /* Functionality still needs to be added */
+          /*********************************
+           * GRAY CLEARTYPE
+           * Selector Bit:  12
+           * Return Bit(s): 19
+           *
+           * Functionality still needs to be added
+           */
           if ( ( args[0] & 4096 ) != 0 && exc->gray_cleartype )
             K |= 1 << 19;
         }
@@ -7537,16 +7603,16 @@
 
 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GETVARIATION[]: get normalized variation (blend) coordinates          */
-  /* Opcode range: 0x91                                                    */
-  /* Stack:        --> f2.14...                                            */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED!  There is no official documentation from Apple for */
-  /*      this bytecode instruction.  Active only if a font has GX         */
-  /*      variation axes.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GETVARIATION[]: get normalized variation (blend) coordinates
+   * Opcode range: 0x91
+   * Stack:        --> f2.14...
+   *
+   * XXX: UNDOCUMENTED!  There is no official documentation from Apple for
+   *      this bytecode instruction.  Active only if a font has GX
+   *      variation axes.
+   */
   static void
   Ins_GETVARIATION( TT_ExecContext  exc,
                     FT_Long*        args )
@@ -7576,15 +7642,15 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* GETDATA[]:    no idea what this is good for                           */
-  /* Opcode range: 0x92                                                    */
-  /* Stack:        --> 17                                                  */
-  /*                                                                       */
-  /* XXX: UNDOCUMENTED!  There is no documentation from Apple for this     */
-  /*      very weird bytecode instruction.                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * GETDATA[]:    no idea what this is good for
+   * Opcode range: 0x92
+   * Stack:        --> 17
+   *
+   * XXX: UNDOCUMENTED!  There is no documentation from Apple for this
+   *      very weird bytecode instruction.
+   */
   static void
   Ins_GETDATA( FT_Long*  args )
   {
@@ -7632,34 +7698,34 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* RUN                                                                   */
-  /*                                                                       */
-  /*  This function executes a run of opcodes.  It will exit in the        */
-  /*  following cases:                                                     */
-  /*                                                                       */
-  /*  - Errors (in which case it returns FALSE).                           */
-  /*                                                                       */
-  /*  - Reaching the end of the main code range (returns TRUE).            */
-  /*    Reaching the end of a code range within a function call is an      */
-  /*    error.                                                             */
-  /*                                                                       */
-  /*  - After executing one single opcode, if the flag `Instruction_Trap'  */
-  /*    is set to TRUE (returns TRUE).                                     */
-  /*                                                                       */
-  /*  On exit with TRUE, test IP < CodeSize to know whether it comes from  */
-  /*  an instruction trap or a normal termination.                         */
-  /*                                                                       */
-  /*                                                                       */
-  /*  Note: The documented DEBUG opcode pops a value from the stack.  This */
-  /*        behaviour is unsupported; here a DEBUG opcode is always an     */
-  /*        error.                                                         */
-  /*                                                                       */
-  /*                                                                       */
-  /* THIS IS THE INTERPRETER'S MAIN LOOP.                                  */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * RUN
+   *
+   * This function executes a run of opcodes.  It will exit in the
+   * following cases:
+   *
+   * - Errors (in which case it returns FALSE).
+   *
+   * - Reaching the end of the main code range (returns TRUE).
+   *   Reaching the end of a code range within a function call is an
+   *   error.
+   *
+   * - After executing one single opcode, if the flag `Instruction_Trap'
+   *   is set to TRUE (returns TRUE).
+   *
+   * On exit with TRUE, test IP < CodeSize to know whether it comes from
+   * an instruction trap or a normal termination.
+   *
+   *
+   * Note: The documented DEBUG opcode pops a value from the stack.  This
+   *       behaviour is unsupported; here a DEBUG opcode is always an
+   *       error.
+   *
+   *
+   * THIS IS THE INTERPRETER'S MAIN LOOP.
+   *
+   */
 
 
   /* documentation is in ttinterp.h */
@@ -7691,16 +7757,16 @@
 
 #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
     /*
-     *  Toggle backward compatibility according to what font wants, except
-     *  when
+     * Toggle backward compatibility according to what font wants, except
+     * when
      *
-     *  1) we have a `tricky' font that heavily relies on the interpreter to
-     *     render glyphs correctly, for example DFKai-SB, or
-     *  2) FT_RENDER_MODE_MONO (i.e, monochome rendering) is requested.
+     * 1) we have a `tricky' font that heavily relies on the interpreter to
+     *    render glyphs correctly, for example DFKai-SB, or
+     * 2) FT_RENDER_MODE_MONO (i.e, monochome rendering) is requested.
      *
-     *  In those cases, backward compatibility needs to be turned off to get
-     *  correct rendering.  The rendering is then completely up to the
-     *  font's programming.
+     * In those cases, backward compatibility needs to be turned off to get
+     * correct rendering.  The rendering is then completely up to the
+     * font's programming.
      *
      */
     if ( SUBPIXEL_HINTING_MINIMAL          &&
@@ -7801,7 +7867,7 @@
         /* and the first few stack elements also             */
         FT_TRACE6(( "  " ));
         FT_TRACE7(( "%06d ", exc->IP ));
-        FT_TRACE6(( opcode_name[exc->opcode] + 2 ));
+        FT_TRACE6(( "%s", opcode_name[exc->opcode] + 2 ));
         FT_TRACE7(( "%*s", *opcode_name[exc->opcode] == 'A'
                               ? 2
                               : 12 - ( *opcode_name[exc->opcode] - '0' ),
diff --git a/thirdparty/freetype/src/truetype/ttinterp.h b/thirdparty/freetype/src/truetype/ttinterp.h
index 2966439ea2..0cb1e892fb 100644
--- a/thirdparty/freetype/src/truetype/ttinterp.h
+++ b/thirdparty/freetype/src/truetype/ttinterp.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttinterp.h                                                             */
-/*                                                                         */
-/*    TrueType bytecode interpreter (specification).                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttinterp.h
+ *
+ *   TrueType bytecode interpreter (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTINTERP_H_
@@ -26,10 +26,10 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Rounding mode constants.                                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Rounding mode constants.
+   */
 #define TT_Round_Off             5
 #define TT_Round_To_Half_Grid    0
 #define TT_Round_To_Grid         1
@@ -40,13 +40,13 @@ FT_BEGIN_HEADER
 #define TT_Round_Super_45        7
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Function types used by the interpreter, depending on various modes    */
-  /* (e.g. the rounding mode, whether to render a vertical or horizontal   */
-  /* line etc).                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Function types used by the interpreter, depending on various modes
+   * (e.g. the rounding mode, whether to render a vertical or horizontal
+   * line etc).
+   *
+   */
 
   /* Rounding function */
   typedef FT_F26Dot6
@@ -84,10 +84,10 @@ FT_BEGIN_HEADER
                       FT_F26Dot6      value );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* This structure defines a call record, used to manage function calls.  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * This structure defines a call record, used to manage function calls.
+   */
   typedef struct  TT_CallRec_
   {
     FT_Int   Caller_Range;
@@ -101,11 +101,11 @@ FT_BEGIN_HEADER
 
 #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* These structures define rules used to tweak subpixel hinting for      */
-  /* various fonts.  "", 0, "", NULL value indicates to match any value.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * These structures define rules used to tweak subpixel hinting for
+   * various fonts.  "", 0, "", NULL value indicates to match any value.
+   */
 
 #define SPH_MAX_NAME_SIZE      32
 #define SPH_MAX_CLASS_MEMBERS  100
@@ -141,11 +141,11 @@ FT_BEGIN_HEADER
 #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The main structure for the interpreter which collects all necessary   */
-  /* variables and states.                                                 */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The main structure for the interpreter which collects all necessary
+   * variables and states.
+   */
   typedef struct  TT_ExecContextRec_
   {
     TT_Face            face;
@@ -352,7 +352,7 @@ FT_BEGIN_HEADER
      *     https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx
      *
      * [3] Beat Stamm describes it in more detail:
-     *     http://www.beatstamm.com/typography/RTRCh4.htm#Sec12
+     *     http://rastertragedy.com/RTRCh4.htm#Sec12.
      *
      * [4] The list of `native ClearType' fonts is small at the time of this
      *     writing; I found the following on a Windows 10 Update 1511
@@ -464,26 +464,27 @@ FT_BEGIN_HEADER
 #endif /* TT_USE_BYTECODE_INTERPRETER */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_New_Context                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Queries the face context for a given font.  Note that there is     */
-  /*    now a _single_ execution context in the TrueType driver which is   */
-  /*    shared among faces.                                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A handle to the source face object.                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    A handle to the execution context.  Initialized for `face'.        */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only the glyph loader and debugger should call this function.      */
-  /*    (And right now only the glyph loader uses it.)                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_New_Context
+   *
+   * @Description:
+   *   Queries the face context for a given font.  Note that there is
+   *   now a _single_ execution context in the TrueType driver which is
+   *   shared among faces.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   * @Return:
+   *   A handle to the execution context.  Initialized for `face'.
+   *
+   * @Note:
+   *   Only the glyph loader and debugger should call this function.
+   *   (And right now only the glyph loader uses it.)
+   */
   FT_EXPORT( TT_ExecContext )
   TT_New_Context( TT_Driver  driver );
 
@@ -506,27 +507,28 @@ FT_BEGIN_HEADER
 #endif /* TT_USE_BYTECODE_INTERPRETER */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    TT_RunIns                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Executes one or more instruction in the execution context.  This   */
-  /*    is the main function of the TrueType opcode interpreter.           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    exec :: A handle to the target execution context.                  */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only the object manager and debugger should call this function.    */
-  /*                                                                       */
-  /*    This function is publicly exported because it is directly          */
-  /*    invoked by the TrueType debugger.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   TT_RunIns
+   *
+   * @Description:
+   *   Executes one or more instruction in the execution context.  This
+   *   is the main function of the TrueType opcode interpreter.
+   *
+   * @Input:
+   *   exec ::
+   *     A handle to the target execution context.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   * @Note:
+   *   Only the object manager and debugger should call this function.
+   *
+   *   This function is publicly exported because it is directly
+   *   invoked by the TrueType debugger.
+   */
   FT_EXPORT( FT_Error )
   TT_RunIns( TT_ExecContext  exec );
 
diff --git a/thirdparty/freetype/src/truetype/ttobjs.c b/thirdparty/freetype/src/truetype/ttobjs.c
index 6685dc8196..f3a432cedd 100644
--- a/thirdparty/freetype/src/truetype/ttobjs.c
+++ b/thirdparty/freetype/src/truetype/ttobjs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttobjs.c                                                               */
-/*                                                                         */
-/*    Objects manager (body).                                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttobjs.c
+ *
+ *   Objects manager (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -36,36 +36,37 @@
 #include "ttgxvar.h"
 #endif
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttobjs
+#define FT_COMPONENT  ttobjs
 
 
 #ifdef TT_USE_BYTECODE_INTERPRETER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                       GLYPH ZONE FUNCTIONS                            */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_glyphzone_done                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Deallocate a glyph zone.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    zone :: A pointer to the target glyph zone.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                      GLYPH ZONE FUNCTIONS
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_glyphzone_done
+   *
+   * @Description:
+   *   Deallocate a glyph zone.
+   *
+   * @Input:
+   *   zone ::
+   *     A pointer to the target glyph zone.
+   */
   FT_LOCAL_DEF( void )
   tt_glyphzone_done( TT_GlyphZone  zone )
   {
@@ -87,27 +88,31 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_glyphzone_new                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Allocate a new glyph zone.                                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    memory      :: A handle to the current memory object.              */
-  /*                                                                       */
-  /*    maxPoints   :: The capacity of glyph zone in points.               */
-  /*                                                                       */
-  /*    maxContours :: The capacity of glyph zone in contours.             */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    zone        :: A pointer to the target glyph zone record.          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_glyphzone_new
+   *
+   * @Description:
+   *   Allocate a new glyph zone.
+   *
+   * @Input:
+   *   memory ::
+   *     A handle to the current memory object.
+   *
+   *   maxPoints ::
+   *     The capacity of glyph zone in points.
+   *
+   *   maxContours ::
+   *     The capacity of glyph zone in contours.
+   *
+   * @Output:
+   *   zone ::
+   *     A pointer to the target glyph zone record.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_glyphzone_new( FT_Memory     memory,
                     FT_UShort     maxPoints,
@@ -566,32 +571,37 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_init                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initialize a given TrueType face object.                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream     :: The source font stream.                              */
-  /*                                                                       */
-  /*    face_index :: The index of the TrueType font, if we are opening a  */
-  /*                  collection, in bits 0-15.  The numbered instance     */
-  /*                  index~+~1 of a GX (sub)font, if applicable, in bits  */
-  /*                  16-30.                                               */
-  /*                                                                       */
-  /*    num_params :: Number of additional generic parameters.  Ignored.   */
-  /*                                                                       */
-  /*    params     :: Additional generic parameters.  Ignored.             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The newly built face object.                         */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_init
+   *
+   * @Description:
+   *   Initialize a given TrueType face object.
+   *
+   * @Input:
+   *   stream ::
+   *     The source font stream.
+   *
+   *   face_index ::
+   *     The index of the TrueType font, if we are opening a
+   *     collection, in bits 0-15.  The numbered instance
+   *     index~+~1 of a GX (sub)font, if applicable, in bits
+   *     16-30.
+   *
+   *   num_params ::
+   *     Number of additional generic parameters.  Ignored.
+   *
+   *   params ::
+   *     Additional generic parameters.  Ignored.
+   *
+   * @InOut:
+   *   face ::
+   *     The newly built face object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_init( FT_Stream      stream,
                 FT_Face        ttface,      /* TT_Face */
@@ -743,17 +753,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_done                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalize a given face object.                                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A pointer to the face object to destroy.                   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_done
+   *
+   * @Description:
+   *   Finalize a given face object.
+   *
+   * @Input:
+   *   face ::
+   *     A pointer to the face object to destroy.
+   */
   FT_LOCAL_DEF( void )
   tt_face_done( FT_Face  ttface )           /* TT_Face */
   {
@@ -799,30 +810,32 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                           SIZE  FUNCTIONS                             */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                          SIZE  FUNCTIONS
+   *
+   */
 
 #ifdef TT_USE_BYTECODE_INTERPRETER
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_size_run_fpgm                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Run the font program.                                              */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    size     :: A handle to the size object.                           */
-  /*                                                                       */
-  /*    pedantic :: Set if bytecode execution should be pedantic.          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_size_run_fpgm
+   *
+   * @Description:
+   *   Run the font program.
+   *
+   * @Input:
+   *   size ::
+   *     A handle to the size object.
+   *
+   *   pedantic ::
+   *     Set if bytecode execution should be pedantic.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_size_run_fpgm( TT_Size  size,
                     FT_Bool  pedantic )
@@ -899,22 +912,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_size_run_prep                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Run the control value program.                                     */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    size     :: A handle to the size object.                           */
-  /*                                                                       */
-  /*    pedantic :: Set if bytecode execution should be pedantic.          */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_size_run_prep
+   *
+   * @Description:
+   *   Run the control value program.
+   *
+   * @Input:
+   *   size ::
+   *     A handle to the size object.
+   *
+   *   pedantic ::
+   *     Set if bytecode execution should be pedantic.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_size_run_prep( TT_Size  size,
                     FT_Bool  pedantic )
@@ -1159,10 +1174,16 @@
       TT_Face  face = (TT_Face)size->root.face;
 
 
-      /* Scale the cvt values to the new ppem.          */
-      /* We use by default the y ppem to scale the CVT. */
+      /* Scale the cvt values to the new ppem.            */
+      /* By default, we use the y ppem value for scaling. */
+      FT_TRACE6(( "CVT values:\n" ));
       for ( i = 0; i < size->cvt_size; i++ )
+      {
         size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale );
+        FT_TRACE6(( "  %3d: %d (%f)\n",
+                    i, face->cvt[i], size->cvt[i] / 64.0 ));
+      }
+      FT_TRACE6(( "\n" ));
 
       /* all twilight points are originally zero */
       for ( i = 0; i < (FT_UInt)size->twilight.n_points; i++ )
@@ -1191,20 +1212,21 @@
 #endif /* TT_USE_BYTECODE_INTERPRETER */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_size_init                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initialize a new TrueType size object.                             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    size :: A handle to the size object.                               */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_size_init
+   *
+   * @Description:
+   *   Initialize a new TrueType size object.
+   *
+   * @InOut:
+   *   size ::
+   *     A handle to the size object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_size_init( FT_Size  ttsize )           /* TT_Size */
   {
@@ -1224,17 +1246,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_size_done                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The TrueType size object finalizer.                                */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    size :: A handle to the target size object.                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_size_done
+   *
+   * @Description:
+   *   The TrueType size object finalizer.
+   *
+   * @Input:
+   *   size ::
+   *     A handle to the target size object.
+   */
   FT_LOCAL_DEF( void )
   tt_size_done( FT_Size  ttsize )           /* TT_Size */
   {
@@ -1249,22 +1272,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_size_reset                                                      */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Reset a TrueType size when resolutions and character dimensions    */
-  /*    have been changed.                                                 */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    size        :: A handle to the target size object.                 */
-  /*                                                                       */
-  /*    only_height :: Only recompute ascender, descender, and height;     */
-  /*                   this flag is used for variation fonts where         */
-  /*                   `tt_size_reset' is used as an iterator function.    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_size_reset
+   *
+   * @Description:
+   *   Reset a TrueType size when resolutions and character dimensions
+   *   have been changed.
+   *
+   * @Input:
+   *   size ::
+   *     A handle to the target size object.
+   *
+   *   only_height ::
+   *     Only recompute ascender, descender, and height;
+   *     this flag is used for variation fonts where
+   *     `tt_size_reset' is used as an iterator function.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_size_reset( TT_Size  size,
                  FT_Bool  only_height )
@@ -1358,20 +1383,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_driver_init                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initialize a given TrueType driver object.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target driver object.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_driver_init
+   *
+   * @Description:
+   *   Initialize a given TrueType driver object.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target driver object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_driver_init( FT_Module  ttdriver )     /* TT_Driver */
   {
@@ -1398,17 +1424,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_driver_done                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalize a given TrueType driver.                                  */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target TrueType driver.                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_driver_done
+   *
+   * @Description:
+   *   Finalize a given TrueType driver.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target TrueType driver.
+   */
   FT_LOCAL_DEF( void )
   tt_driver_done( FT_Module  ttdriver )     /* TT_Driver */
   {
@@ -1416,20 +1443,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_slot_init                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initialize a new slot object.                                      */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    slot :: A handle to the slot object.                               */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_slot_init
+   *
+   * @Description:
+   *   Initialize a new slot object.
+   *
+   * @InOut:
+   *   slot ::
+   *     A handle to the slot object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_slot_init( FT_GlyphSlot  slot )
   {
diff --git a/thirdparty/freetype/src/truetype/ttobjs.h b/thirdparty/freetype/src/truetype/ttobjs.h
index 38fa30e4e9..9fc654d5d1 100644
--- a/thirdparty/freetype/src/truetype/ttobjs.h
+++ b/thirdparty/freetype/src/truetype/ttobjs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttobjs.h                                                               */
-/*                                                                         */
-/*    Objects manager (specification).                                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttobjs.h
+ *
+ *   Objects manager (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTOBJS_H_
@@ -28,40 +28,40 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    TT_Driver                                                          */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a TrueType driver object.                              */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   TT_Driver
+   *
+   * @Description:
+   *   A handle to a TrueType driver object.
+   */
   typedef struct TT_DriverRec_*  TT_Driver;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    TT_GlyphSlot                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a TrueType glyph slot object.                          */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    This is a direct typedef of FT_GlyphSlot, as there is nothing      */
-  /*    specific about the TrueType glyph slot.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   TT_GlyphSlot
+   *
+   * @Description:
+   *   A handle to a TrueType glyph slot object.
+   *
+   * @Note:
+   *   This is a direct typedef of FT_GlyphSlot, as there is nothing
+   *   specific about the TrueType glyph slot.
+   */
   typedef FT_GlyphSlot  TT_GlyphSlot;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    TT_GraphicsState                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The TrueType graphics state used during bytecode interpretation.   */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   TT_GraphicsState
+   *
+   * @Description:
+   *   The TrueType graphics state used during bytecode interpretation.
+   */
   typedef struct  TT_GraphicsState_
   {
     FT_UShort      rp0;
@@ -113,25 +113,25 @@ FT_BEGIN_HEADER
 
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*  EXECUTION SUBTABLES                                                  */
-  /*                                                                       */
-  /*  These sub-tables relate to instruction execution.                    */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * EXECUTION SUBTABLES
+   *
+   * These sub-tables relate to instruction execution.
+   *
+   */
 
 
 #define TT_MAX_CODE_RANGES  3
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* There can only be 3 active code ranges at once:                       */
-  /*   - the Font Program                                                  */
-  /*   - the CVT Program                                                   */
-  /*   - a glyph's instructions set                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * There can only be 3 active code ranges at once:
+   *   - the Font Program
+   *   - the CVT Program
+   *   - a glyph's instructions set
+   */
   typedef enum  TT_CodeRange_Tag_
   {
     tt_coderange_none = 0,
@@ -152,10 +152,10 @@ FT_BEGIN_HEADER
   typedef TT_CodeRange  TT_CodeRangeTable[TT_MAX_CODE_RANGES];
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Defines a function/instruction definition record.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Defines a function/instruction definition record.
+   */
   typedef struct  TT_DefRecord_
   {
     FT_Int    range;          /* in which code range is it located?     */
@@ -169,10 +169,10 @@ FT_BEGIN_HEADER
   } TT_DefRecord, *TT_DefArray;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Subglyph transformation record.                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Subglyph transformation record.
+   */
   typedef struct  TT_Transform_
   {
     FT_Fixed    xx, xy;     /* transformation matrix coefficients */
@@ -182,72 +182,72 @@ FT_BEGIN_HEADER
   } TT_Transform;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* A note regarding non-squared pixels:                                  */
-  /*                                                                       */
-  /* (This text will probably go into some docs at some time; for now, it  */
-  /* is kept here to explain some definitions in the TT_Size_Metrics       */
-  /* record).                                                              */
-  /*                                                                       */
-  /* The CVT is a one-dimensional array containing values that control     */
-  /* certain important characteristics in a font, like the height of all   */
-  /* capitals, all lowercase letter, default spacing or stem width/height. */
-  /*                                                                       */
-  /* These values are found in FUnits in the font file, and must be scaled */
-  /* to pixel coordinates before being used by the CVT and glyph programs. */
-  /* Unfortunately, when using distinct x and y resolutions (or distinct x */
-  /* and y pointsizes), there are two possible scalings.                   */
-  /*                                                                       */
-  /* A first try was to implement a `lazy' scheme where all values were    */
-  /* scaled when first used.  However, while some values are always used   */
-  /* in the same direction, some others are used under many different      */
-  /* circumstances and orientations.                                       */
-  /*                                                                       */
-  /* I have found a simpler way to do the same, and it even seems to work  */
-  /* in most of the cases:                                                 */
-  /*                                                                       */
-  /* - All CVT values are scaled to the maximum ppem size.                 */
-  /*                                                                       */
-  /* - When performing a read or write in the CVT, a ratio factor is used  */
-  /*   to perform adequate scaling.  Example:                              */
-  /*                                                                       */
-  /*     x_ppem = 14                                                       */
-  /*     y_ppem = 10                                                       */
-  /*                                                                       */
-  /*   We choose ppem = x_ppem = 14 as the CVT scaling size.  All cvt      */
-  /*   entries are scaled to it.                                           */
-  /*                                                                       */
-  /*     x_ratio = 1.0                                                     */
-  /*     y_ratio = y_ppem/ppem (< 1.0)                                     */
-  /*                                                                       */
-  /*   We compute the current ratio like:                                  */
-  /*                                                                       */
-  /*   - If projVector is horizontal,                                      */
-  /*       ratio = x_ratio = 1.0                                           */
-  /*                                                                       */
-  /*   - if projVector is vertical,                                        */
-  /*       ratio = y_ratio                                                 */
-  /*                                                                       */
-  /*   - else,                                                             */
-  /*       ratio = sqrt( (proj.x * x_ratio) ^ 2 + (proj.y * y_ratio) ^ 2 ) */
-  /*                                                                       */
-  /*   Reading a cvt value returns                                         */
-  /*     ratio * cvt[index]                                                */
-  /*                                                                       */
-  /*   Writing a cvt value in pixels:                                      */
-  /*     cvt[index] / ratio                                                */
-  /*                                                                       */
-  /*   The current ppem is simply                                          */
-  /*     ratio * ppem                                                      */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* Metrics used by the TrueType size and context objects.                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * A note regarding non-squared pixels:
+   *
+   * (This text will probably go into some docs at some time; for now, it
+   * is kept here to explain some definitions in the TT_Size_Metrics
+   * record).
+   *
+   * The CVT is a one-dimensional array containing values that control
+   * certain important characteristics in a font, like the height of all
+   * capitals, all lowercase letter, default spacing or stem width/height.
+   *
+   * These values are found in FUnits in the font file, and must be scaled
+   * to pixel coordinates before being used by the CVT and glyph programs.
+   * Unfortunately, when using distinct x and y resolutions (or distinct x
+   * and y pointsizes), there are two possible scalings.
+   *
+   * A first try was to implement a `lazy' scheme where all values were
+   * scaled when first used.  However, while some values are always used
+   * in the same direction, some others are used under many different
+   * circumstances and orientations.
+   *
+   * I have found a simpler way to do the same, and it even seems to work
+   * in most of the cases:
+   *
+   * - All CVT values are scaled to the maximum ppem size.
+   *
+   * - When performing a read or write in the CVT, a ratio factor is used
+   *   to perform adequate scaling.  Example:
+   *
+   *     x_ppem = 14
+   *     y_ppem = 10
+   *
+   *   We choose ppem = x_ppem = 14 as the CVT scaling size.  All cvt
+   *   entries are scaled to it.
+   *
+   *     x_ratio = 1.0
+   *     y_ratio = y_ppem/ppem (< 1.0)
+   *
+   *   We compute the current ratio like:
+   *
+   *   - If projVector is horizontal,
+   *       ratio = x_ratio = 1.0
+   *
+   *   - if projVector is vertical,
+   *       ratio = y_ratio
+   *
+   *   - else,
+   *       ratio = sqrt( (proj.x * x_ratio) ^ 2 + (proj.y * y_ratio) ^ 2 )
+   *
+   *   Reading a cvt value returns
+   *     ratio * cvt[index]
+   *
+   *   Writing a cvt value in pixels:
+   *     cvt[index] / ratio
+   *
+   *   The current ppem is simply
+   *     ratio * ppem
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * Metrics used by the TrueType size and context objects.
+   */
   typedef struct  TT_Size_Metrics_
   {
     /* for non-square pixels */
@@ -268,10 +268,10 @@ FT_BEGIN_HEADER
   } TT_Size_Metrics;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TrueType size class.                                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TrueType size class.
+   */
   typedef struct  TT_SizeRec_
   {
     FT_SizeRec         root;
@@ -324,10 +324,10 @@ FT_BEGIN_HEADER
   } TT_SizeRec;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* TrueType driver class.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * TrueType driver class.
+   */
   typedef struct  TT_DriverRec_
   {
     FT_DriverRec  root;
@@ -348,10 +348,10 @@ FT_BEGIN_HEADER
   /* will always use the TT driver to create them.                         */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Face functions                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Face functions
+   */
   FT_LOCAL( FT_Error )
   tt_face_init( FT_Stream      stream,
                 FT_Face        ttface,      /* TT_Face */
@@ -363,10 +363,10 @@ FT_BEGIN_HEADER
   tt_face_done( FT_Face  ttface );          /* TT_Face */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Size functions                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Size functions
+   */
   FT_LOCAL( FT_Error )
   tt_size_init( FT_Size  ttsize );          /* TT_Size */
 
@@ -394,10 +394,10 @@ FT_BEGIN_HEADER
                  FT_Bool  only_height );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Driver functions                                                      */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Driver functions
+   */
   FT_LOCAL( FT_Error )
   tt_driver_init( FT_Module  ttdriver );    /* TT_Driver */
 
@@ -405,10 +405,10 @@ FT_BEGIN_HEADER
   tt_driver_done( FT_Module  ttdriver );    /* TT_Driver */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Slot functions                                                        */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Slot functions
+   */
   FT_LOCAL( FT_Error )
   tt_slot_init( FT_GlyphSlot  slot );
 
diff --git a/thirdparty/freetype/src/truetype/ttpic.c b/thirdparty/freetype/src/truetype/ttpic.c
deleted file mode 100644
index cdbb80639e..0000000000
--- a/thirdparty/freetype/src/truetype/ttpic.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttpic.c                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services for truetype module. */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_INTERNAL_OBJECTS_H
-#include "ttpic.h"
-#include "tterrors.h"
-
-
-#ifdef FT_CONFIG_OPTION_PIC
-
-  /* forward declaration of PIC init functions from ttdriver.c */
-  FT_Error
-  FT_Create_Class_tt_services( FT_Library           library,
-                               FT_ServiceDescRec**  output_class );
-  void
-  FT_Destroy_Class_tt_services( FT_Library          library,
-                                FT_ServiceDescRec*  clazz );
-  void
-  FT_Init_Class_tt_service_gx_multi_masters(
-    FT_Service_MultiMastersRec*  sv_mm );
-  void
-  FT_Init_Class_tt_service_truetype_glyf(
-    FT_Service_TTGlyfRec*  sv_ttglyf );
-
-
-  void
-  tt_driver_class_pic_free( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Memory          memory        = library->memory;
-
-
-    if ( pic_container->truetype )
-    {
-      TTModulePIC*  container = (TTModulePIC*)pic_container->truetype;
-
-
-      if ( container->tt_services )
-        FT_Destroy_Class_tt_services( library, container->tt_services );
-      container->tt_services = NULL;
-      FT_FREE( container );
-      pic_container->truetype = NULL;
-    }
-  }
-
-
-  FT_Error
-  tt_driver_class_pic_init( FT_Library  library )
-  {
-    FT_PIC_Container*  pic_container = &library->pic_container;
-    FT_Error           error         = FT_Err_Ok;
-    TTModulePIC*       container     = NULL;
-    FT_Memory          memory        = library->memory;
-
-
-    /* allocate pointer, clear and set global container pointer */
-    if ( FT_ALLOC( container, sizeof ( *container ) ) )
-      return error;
-    FT_MEM_SET( container, 0, sizeof ( *container ) );
-    pic_container->truetype = container;
-
-    /* initialize pointer table - this is how the module usually */
-    /* expects this data                                         */
-    error = FT_Create_Class_tt_services( library,
-                                         &container->tt_services );
-    if ( error )
-      goto Exit;
-#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-    FT_Init_Class_tt_service_gx_multi_masters(
-      &container->tt_service_gx_multi_masters );
-#endif
-    FT_Init_Class_tt_service_truetype_glyf(
-      &container->tt_service_truetype_glyf );
-
-  Exit:
-    if ( error )
-      tt_driver_class_pic_free( library );
-    return error;
-  }
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/truetype/ttpic.h b/thirdparty/freetype/src/truetype/ttpic.h
deleted file mode 100644
index df878ae6f1..0000000000
--- a/thirdparty/freetype/src/truetype/ttpic.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttpic.h                                                                */
-/*                                                                         */
-/*    The FreeType position independent code services for truetype module. */
-/*                                                                         */
-/*  Copyright 2009-2018 by                                                 */
-/*  Oran Agra and Mickey Gabel.                                            */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-#ifndef TTPIC_H_
-#define TTPIC_H_
-
-
-#include FT_INTERNAL_PIC_H
-
-
-#ifndef FT_CONFIG_OPTION_PIC
-
-#define TT_SERVICES_GET                    tt_services
-#define TT_SERVICE_GX_MULTI_MASTERS_GET    tt_service_gx_multi_masters
-#define TT_SERVICE_METRICS_VARIATIONS_GET  tt_service_metrics_variations
-#define TT_SERVICE_TRUETYPE_GLYF_GET       tt_service_truetype_glyf
-#define TT_SERVICE_PROPERTIES_GET          tt_service_properties
-
-#else /* FT_CONFIG_OPTION_PIC */
-
-#include FT_MULTIPLE_MASTERS_H
-#include FT_SERVICE_MULTIPLE_MASTERS_H
-#include FT_SERVICE_METRICS_VARIATIONS_H
-#include FT_SERVICE_TRUETYPE_GLYF_H
-#include FT_SERVICE_PROPERTIES_H
-
-
-FT_BEGIN_HEADER
-
-  typedef struct  TTModulePIC_
-  {
-    FT_ServiceDescRec*               tt_services;
-#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
-    FT_Service_MultiMastersRec       tt_service_gx_multi_masters;
-    FT_Service_MetricsVariationsRec  tt_service_metrics_variations;
-#endif
-    FT_Service_TTGlyfRec             tt_service_truetype_glyf;
-    FT_Service_PropertiesRec         tt_service_properties;
-
-  } TTModulePIC;
-
-
-#define GET_PIC( lib )                                      \
-          ( (TTModulePIC*)((lib)->pic_container.truetype) )
-#define TT_SERVICES_GET                       \
-          ( GET_PIC( library )->tt_services )
-#define TT_SERVICE_METRICS_VARIATIONS_GET                       \
-          ( GET_PIC( library )->tt_service_metrics_variations )
-#define TT_SERVICE_GX_MULTI_MASTERS_GET                       \
-          ( GET_PIC( library )->tt_service_gx_multi_masters )
-#define TT_SERVICE_TRUETYPE_GLYF_GET                       \
-          ( GET_PIC( library )->tt_service_truetype_glyf )
-#define TT_SERVICE_PROPERTIES_GET                       \
-          ( GET_PIC( library )->tt_service_properties )
-
-
-  /* see ttpic.c for the implementation */
-  void
-  tt_driver_class_pic_free( FT_Library  library );
-
-  FT_Error
-  tt_driver_class_pic_init( FT_Library  library );
-
-FT_END_HEADER
-
-#endif /* FT_CONFIG_OPTION_PIC */
-
- /* */
-
-#endif /* TTPIC_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/truetype/ttpload.c b/thirdparty/freetype/src/truetype/ttpload.c
index d9526ad082..e7718bf9b7 100644
--- a/thirdparty/freetype/src/truetype/ttpload.c
+++ b/thirdparty/freetype/src/truetype/ttpload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttpload.c                                                              */
-/*                                                                         */
-/*    TrueType-specific tables loader (body).                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttpload.c
+ *
+ *   TrueType-specific tables loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -31,33 +31,35 @@
 #include "tterrors.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_ttpload
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_loca                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the locations table.                                          */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: The input stream.                                        */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+#define FT_COMPONENT  ttpload
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_loca
+   *
+   * @Description:
+   *   Load the locations table.
+   *
+   * @InOut:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @Input:
+   *   stream ::
+   *     The input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_loca( TT_Face    face,
                      FT_Stream  stream )
@@ -297,23 +299,25 @@
 
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_cvt                                                   */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the control value table into a face object.                   */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_cvt
+   *
+   * @Description:
+   *   Load the control value table into a face object.
+   *
+   * @InOut:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @Input:
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_cvt( TT_Face    face,
                     FT_Stream  stream )
@@ -378,23 +382,25 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_fpgm                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the font program.                                             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_fpgm
+   *
+   * @Description:
+   *   Load the font program.
+   *
+   * @InOut:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @Input:
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_fpgm( TT_Face    face,
                      FT_Stream  stream )
@@ -440,23 +446,25 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_prep                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the cvt program.                                              */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_prep
+   *
+   * @Description:
+   *   Load the cvt program.
+   *
+   * @InOut:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   * @Input:
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_prep( TT_Face    face,
                      FT_Stream  stream )
@@ -501,22 +509,24 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    tt_face_load_hdmx                                                  */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Load the `hdmx' table into the face object.                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face   :: A handle to the target face object.                      */
-  /*                                                                       */
-  /*    stream :: A handle to the input stream.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   tt_face_load_hdmx
+   *
+   * @Description:
+   *   Load the `hdmx' table into the face object.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the target face object.
+   *
+   *   stream ::
+   *     A handle to the input stream.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
 
   FT_LOCAL_DEF( FT_Error )
   tt_face_load_hdmx( TT_Face    face,
@@ -610,11 +620,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Return the advance width table for a given pixel size if it is found  */
-  /* in the font's `hdmx' table (if any).                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Return the advance width table for a given pixel size if it is found
+   * in the font's `hdmx' table (if any).
+   */
   FT_LOCAL_DEF( FT_Byte* )
   tt_face_get_device_metrics( TT_Face  face,
                               FT_UInt  ppem,
diff --git a/thirdparty/freetype/src/truetype/ttpload.h b/thirdparty/freetype/src/truetype/ttpload.h
index fa12527247..022750e324 100644
--- a/thirdparty/freetype/src/truetype/ttpload.h
+++ b/thirdparty/freetype/src/truetype/ttpload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttpload.h                                                              */
-/*                                                                         */
-/*    TrueType-specific tables loader (specification).                     */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttpload.h
+ *
+ *   TrueType-specific tables loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTPLOAD_H_
diff --git a/thirdparty/freetype/src/truetype/ttsubpix.c b/thirdparty/freetype/src/truetype/ttsubpix.c
index d94bcc8b50..23a2e5b440 100644
--- a/thirdparty/freetype/src/truetype/ttsubpix.c
+++ b/thirdparty/freetype/src/truetype/ttsubpix.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttsubpix.c                                                             */
-/*                                                                         */
-/*    TrueType Subpixel Hinting.                                           */
-/*                                                                         */
-/*  Copyright 2010-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttsubpix.c
+ *
+ *   TrueType Subpixel Hinting.
+ *
+ * Copyright (C) 2010-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 #include <ft2build.h>
 #include FT_INTERNAL_DEBUG_H
@@ -30,35 +30,35 @@
 #if defined( TT_USE_BYTECODE_INTERPRETER )            && \
     defined( TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY )
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* These rules affect how the TT Interpreter does hinting, with the      */
-  /* goal of doing subpixel hinting by (in general) ignoring x moves.      */
-  /* Some of these rules are fixes that go above and beyond the            */
-  /* stated techniques in the MS whitepaper on Cleartype, due to           */
-  /* artifacts in many glyphs.  So, these rules make some glyphs render    */
-  /* better than they do in the MS rasterizer.                             */
-  /*                                                                       */
-  /* "" string or 0 int/char indicates to apply to all glyphs.             */
-  /* "-" used as dummy placeholders, but any non-matching string works.    */
-  /*                                                                       */
-  /* Some of this could arguably be implemented in fontconfig, however:    */
-  /*                                                                       */
-  /*  - Fontconfig can't set things on a glyph-by-glyph basis.             */
-  /*  - The tweaks that happen here are very low-level, from an average    */
-  /*    user's point of view and are best implemented in the hinter.       */
-  /*                                                                       */
-  /* The goal is to make the subpixel hinting techniques as generalized    */
-  /* as possible across all fonts to prevent the need for extra rules such */
-  /* as these.                                                             */
-  /*                                                                       */
-  /* The rule structure is designed so that entirely new rules can easily  */
-  /* be added when a new compatibility feature is discovered.              */
-  /*                                                                       */
-  /* The rule structures could also use some enhancement to handle ranges. */
-  /*                                                                       */
-  /*     ****************** WORK IN PROGRESS *******************           */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * These rules affect how the TT Interpreter does hinting, with the
+   * goal of doing subpixel hinting by (in general) ignoring x moves.
+   * Some of these rules are fixes that go above and beyond the
+   * stated techniques in the MS whitepaper on Cleartype, due to
+   * artifacts in many glyphs.  So, these rules make some glyphs render
+   * better than they do in the MS rasterizer.
+   *
+   * "" string or 0 int/char indicates to apply to all glyphs.
+   * "-" used as dummy placeholders, but any non-matching string works.
+   *
+   * Some of this could arguably be implemented in fontconfig, however:
+   *
+   * - Fontconfig can't set things on a glyph-by-glyph basis.
+   * - The tweaks that happen here are very low-level, from an average
+   *   user's point of view and are best implemented in the hinter.
+   *
+   * The goal is to make the subpixel hinting techniques as generalized
+   * as possible across all fonts to prevent the need for extra rules such
+   * as these.
+   *
+   * The rule structure is designed so that entirely new rules can easily
+   * be added when a new compatibility feature is discovered.
+   *
+   * The rule structures could also use some enhancement to handle ranges.
+   *
+   *     ****************** WORK IN PROGRESS *******************
+   */
 
   /* These are `classes' of fonts that can be grouped together and used in */
   /* rules below.  A blank entry "" is required at the end of these!       */
diff --git a/thirdparty/freetype/src/truetype/ttsubpix.h b/thirdparty/freetype/src/truetype/ttsubpix.h
index 1070bb016f..4966800c2d 100644
--- a/thirdparty/freetype/src/truetype/ttsubpix.h
+++ b/thirdparty/freetype/src/truetype/ttsubpix.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  ttsubpix.h                                                             */
-/*                                                                         */
-/*    TrueType Subpixel Hinting.                                           */
-/*                                                                         */
-/*  Copyright 2010-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * ttsubpix.h
+ *
+ *   TrueType Subpixel Hinting.
+ *
+ * Copyright (C) 2010-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef TTSUBPIX_H_
@@ -29,11 +29,11 @@ FT_BEGIN_HEADER
 
 #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* ID flags to identify special functions at FDEF and runtime.           */
-  /*                                                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * ID flags to identify special functions at FDEF and runtime.
+   *
+   */
 #define SPH_FDEF_INLINE_DELTA_1       0x0000001
 #define SPH_FDEF_INLINE_DELTA_2       0x0000002
 #define SPH_FDEF_DIAGONAL_STROKE      0x0000004
@@ -45,11 +45,11 @@ FT_BEGIN_HEADER
 #define SPH_FDEF_TYPEMAN_DIAGENDCTRL  0x0000100
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Tweak flags that are set for each glyph by the below rules.           */
-  /*                                                                       */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Tweak flags that are set for each glyph by the below rules.
+   *
+   */
 #define SPH_TWEAK_ALLOW_X_DMOVE                   0x0000001UL
 #define SPH_TWEAK_ALWAYS_DO_DELTAP                0x0000002UL
 #define SPH_TWEAK_ALWAYS_SKIP_DELTAP              0x0000004UL
diff --git a/thirdparty/freetype/src/type1/module.mk b/thirdparty/freetype/src/type1/module.mk
index 3fea5cc16f..2f48c65821 100644
--- a/thirdparty/freetype/src/type1/module.mk
+++ b/thirdparty/freetype/src/type1/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/type1/rules.mk b/thirdparty/freetype/src/type1/rules.mk
index cb1a142860..901169c7a5 100644
--- a/thirdparty/freetype/src/type1/rules.mk
+++ b/thirdparty/freetype/src/type1/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/type1/t1afm.c b/thirdparty/freetype/src/type1/t1afm.c
index 61053d9a64..6841184539 100644
--- a/thirdparty/freetype/src/type1/t1afm.c
+++ b/thirdparty/freetype/src/type1/t1afm.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1afm.c                                                                */
-/*                                                                         */
-/*    AFM support for Type 1 fonts (body).                                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1afm.c
+ *
+ *   AFM support for Type 1 fonts (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -26,14 +26,14 @@
 
 #ifndef T1_CONFIG_OPTION_NO_AFM
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1afm
+#define FT_COMPONENT  t1afm
 
 
   FT_LOCAL_DEF( void )
diff --git a/thirdparty/freetype/src/type1/t1afm.h b/thirdparty/freetype/src/type1/t1afm.h
index cb8d302b4d..a8e6a5495a 100644
--- a/thirdparty/freetype/src/type1/t1afm.h
+++ b/thirdparty/freetype/src/type1/t1afm.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1afm.h                                                                */
-/*                                                                         */
-/*    AFM support for Type 1 fonts (specification).                        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1afm.h
+ *
+ *   AFM support for Type 1 fonts (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1AFM_H_
diff --git a/thirdparty/freetype/src/type1/t1driver.c b/thirdparty/freetype/src/type1/t1driver.c
index 029b410b47..8625db5b01 100644
--- a/thirdparty/freetype/src/type1/t1driver.c
+++ b/thirdparty/freetype/src/type1/t1driver.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1driver.c                                                             */
-/*                                                                         */
-/*    Type 1 driver interface (body).                                      */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1driver.c
+ *
+ *   Type 1 driver interface (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -43,19 +43,19 @@
 #include FT_SERVICE_KERNING_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1driver
+#define FT_COMPONENT  t1driver
 
- /*
-  *  GLYPH DICT SERVICE
-  *
-  */
+  /*
+   * GLYPH DICT SERVICE
+   *
+   */
 
   static FT_Error
   t1_get_glyph_name( T1_Face     face,
@@ -97,7 +97,7 @@
 
 
   /*
-   *  POSTSCRIPT NAME SERVICE
+   * POSTSCRIPT NAME SERVICE
    *
    */
 
@@ -115,30 +115,32 @@
 
 
   /*
-   *  MULTIPLE MASTERS SERVICE
+   * MULTIPLE MASTERS SERVICE
    *
    */
 
 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
   static const FT_Service_MultiMastersRec  t1_service_multi_masters =
   {
-    (FT_Get_MM_Func)        T1_Get_Multi_Master,   /* get_mm         */
-    (FT_Set_MM_Design_Func) T1_Set_MM_Design,      /* set_mm_design  */
-    (FT_Set_MM_Blend_Func)  T1_Set_MM_Blend,       /* set_mm_blend   */
-    (FT_Get_MM_Blend_Func)  T1_Get_MM_Blend,       /* get_mm_blend   */
-    (FT_Get_MM_Var_Func)    T1_Get_MM_Var,         /* get_mm_var     */
-    (FT_Set_Var_Design_Func)T1_Set_Var_Design,     /* set_var_design */
-    (FT_Get_Var_Design_Func)T1_Get_Var_Design,     /* get_var_design */
-    (FT_Set_Instance_Func)  T1_Reset_MM_Blend,     /* set_instance   */
-
-    (FT_Get_Var_Blend_Func) NULL,                  /* get_var_blend  */
-    (FT_Done_Blend_Func)    T1_Done_Blend          /* done_blend     */
+    (FT_Get_MM_Func)             T1_Get_Multi_Master,    /* get_mm              */
+    (FT_Set_MM_Design_Func)      T1_Set_MM_Design,       /* set_mm_design       */
+    (FT_Set_MM_Blend_Func)       T1_Set_MM_Blend,        /* set_mm_blend        */
+    (FT_Get_MM_Blend_Func)       T1_Get_MM_Blend,        /* get_mm_blend        */
+    (FT_Get_MM_Var_Func)         T1_Get_MM_Var,          /* get_mm_var          */
+    (FT_Set_Var_Design_Func)     T1_Set_Var_Design,      /* set_var_design      */
+    (FT_Get_Var_Design_Func)     T1_Get_Var_Design,      /* get_var_design      */
+    (FT_Set_Instance_Func)       T1_Reset_MM_Blend,      /* set_instance        */
+    (FT_Set_MM_WeightVector_Func)T1_Set_MM_WeightVector, /* set_mm_weightvector */
+    (FT_Get_MM_WeightVector_Func)T1_Get_MM_WeightVector, /* get_mm_weightvector */
+
+    (FT_Get_Var_Blend_Func)      NULL,                   /* get_var_blend       */
+    (FT_Done_Blend_Func)         T1_Done_Blend           /* done_blend          */
   };
 #endif
 
 
   /*
-   *  POSTSCRIPT INFO SERVICE
+   * POSTSCRIPT INFO SERVICE
    *
    */
 
@@ -270,9 +272,12 @@
       break;
 
     case PS_DICT_FONT_NAME:
-      retval = ft_strlen( type1->font_name ) + 1;
-      if ( value && value_len >= retval )
-        ft_memcpy( value, (void *)( type1->font_name ), retval );
+      if ( type1->font_name )
+      {
+        retval = ft_strlen( type1->font_name ) + 1;
+        if ( value && value_len >= retval )
+          ft_memcpy( value, (void *)( type1->font_name ), retval );
+      }
       break;
 
     case PS_DICT_UNIQUE_ID:
@@ -362,7 +367,7 @@
             ok = 1;
         }
 
-        if ( ok )
+        if ( ok && type1->subrs )
         {
           retval = type1->subrs_len[idx] + 1;
           if ( value && value_len >= retval )
@@ -559,33 +564,49 @@
       break;
 
     case PS_DICT_VERSION:
-      retval = ft_strlen( type1->font_info.version ) + 1;
-      if ( value && value_len >= retval )
-        ft_memcpy( value, (void *)( type1->font_info.version ), retval );
+      if ( type1->font_info.version )
+      {
+        retval = ft_strlen( type1->font_info.version ) + 1;
+        if ( value && value_len >= retval )
+          ft_memcpy( value, (void *)( type1->font_info.version ), retval );
+      }
       break;
 
     case PS_DICT_NOTICE:
-      retval = ft_strlen( type1->font_info.notice ) + 1;
-      if ( value && value_len >= retval )
-        ft_memcpy( value, (void *)( type1->font_info.notice ), retval );
+      if ( type1->font_info.notice )
+      {
+        retval = ft_strlen( type1->font_info.notice ) + 1;
+        if ( value && value_len >= retval )
+          ft_memcpy( value, (void *)( type1->font_info.notice ), retval );
+      }
       break;
 
     case PS_DICT_FULL_NAME:
-      retval = ft_strlen( type1->font_info.full_name ) + 1;
-      if ( value && value_len >= retval )
-        ft_memcpy( value, (void *)( type1->font_info.full_name ), retval );
+      if ( type1->font_info.full_name )
+      {
+        retval = ft_strlen( type1->font_info.full_name ) + 1;
+        if ( value && value_len >= retval )
+          ft_memcpy( value, (void *)( type1->font_info.full_name ), retval );
+      }
       break;
 
     case PS_DICT_FAMILY_NAME:
-      retval = ft_strlen( type1->font_info.family_name ) + 1;
-      if ( value && value_len >= retval )
-        ft_memcpy( value, (void *)( type1->font_info.family_name ), retval );
+      if ( type1->font_info.family_name )
+      {
+        retval = ft_strlen( type1->font_info.family_name ) + 1;
+        if ( value && value_len >= retval )
+          ft_memcpy( value, (void *)( type1->font_info.family_name ),
+                     retval );
+      }
       break;
 
     case PS_DICT_WEIGHT:
-      retval = ft_strlen( type1->font_info.weight ) + 1;
-      if ( value && value_len >= retval )
-        ft_memcpy( value, (void *)( type1->font_info.weight ), retval );
+      if ( type1->font_info.weight )
+      {
+        retval = ft_strlen( type1->font_info.weight ) + 1;
+        if ( value && value_len >= retval )
+          ft_memcpy( value, (void *)( type1->font_info.weight ), retval );
+      }
       break;
 
     case PS_DICT_ITALIC_ANGLE:
@@ -618,7 +639,7 @@
 
 
   /*
-   *  PROPERTY SERVICE
+   * PROPERTY SERVICE
    *
    */
 
@@ -630,7 +651,7 @@
 
 
   /*
-   *  SERVICE LIST
+   * SERVICE LIST
    *
    */
 
@@ -665,38 +686,42 @@
 
 #ifndef T1_CONFIG_OPTION_NO_AFM
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    Get_Kerning                                                        */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A driver method used to return the kerning vector between two      */
-  /*    glyphs of the same face.                                           */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face        :: A handle to the source face object.                 */
-  /*                                                                       */
-  /*    left_glyph  :: The index of the left glyph in the kern pair.       */
-  /*                                                                       */
-  /*    right_glyph :: The index of the right glyph in the kern pair.      */
-  /*                                                                       */
-  /* <Output>                                                              */
-  /*    kerning     :: The kerning vector.  This is in font units for      */
-  /*                   scalable formats, and in pixels for fixed-sizes     */
-  /*                   formats.                                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    Only horizontal layouts (left-to-right & right-to-left) are        */
-  /*    supported by this function.  Other layouts, or more sophisticated  */
-  /*    kernings are out of scope of this method (the basic driver         */
-  /*    interface is meant to be simple).                                  */
-  /*                                                                       */
-  /*    They can be implemented by format-specific interfaces.             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   Get_Kerning
+   *
+   * @Description:
+   *   A driver method used to return the kerning vector between two
+   *   glyphs of the same face.
+   *
+   * @Input:
+   *   face ::
+   *     A handle to the source face object.
+   *
+   *   left_glyph ::
+   *     The index of the left glyph in the kern pair.
+   *
+   *   right_glyph ::
+   *     The index of the right glyph in the kern pair.
+   *
+   * @Output:
+   *   kerning ::
+   *     The kerning vector.  This is in font units for
+   *     scalable formats, and in pixels for fixed-sizes
+   *     formats.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   *
+   * @Note:
+   *   Only horizontal layouts (left-to-right & right-to-left) are
+   *   supported by this function.  Other layouts, or more sophisticated
+   *   kernings are out of scope of this method (the basic driver
+   *   interface is meant to be simple).
+   *
+   *   They can be implemented by format-specific interfaces.
+   */
   static FT_Error
   Get_Kerning( FT_Face     t1face,        /* T1_Face */
                FT_UInt     left_glyph,
diff --git a/thirdparty/freetype/src/type1/t1driver.h b/thirdparty/freetype/src/type1/t1driver.h
index 2b1507233d..206f64a0bc 100644
--- a/thirdparty/freetype/src/type1/t1driver.h
+++ b/thirdparty/freetype/src/type1/t1driver.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1driver.h                                                             */
-/*                                                                         */
-/*    High-level Type 1 driver interface (specification).                  */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1driver.h
+ *
+ *   High-level Type 1 driver interface (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1DRIVER_H_
@@ -26,14 +26,8 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
-
   FT_EXPORT_VAR( const FT_Driver_ClassRec )  t1_driver_class;
 
-
 FT_END_HEADER
 
 #endif /* T1DRIVER_H_ */
diff --git a/thirdparty/freetype/src/type1/t1errors.h b/thirdparty/freetype/src/type1/t1errors.h
index 9e0151b957..b35f67a24c 100644
--- a/thirdparty/freetype/src/type1/t1errors.h
+++ b/thirdparty/freetype/src/type1/t1errors.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1errors.h                                                             */
-/*                                                                         */
-/*    Type 1 error codes (specification only).                             */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the Type 1 error enumeration constants.   */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * t1errors.h
+ *
+ *   Type 1 error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the Type 1 error enumeration constants.
+   *
+   */
 
 #ifndef T1ERRORS_H_
 #define T1ERRORS_H_
diff --git a/thirdparty/freetype/src/type1/t1gload.c b/thirdparty/freetype/src/type1/t1gload.c
index 87d40e7566..f9b115b186 100644
--- a/thirdparty/freetype/src/type1/t1gload.c
+++ b/thirdparty/freetype/src/type1/t1gload.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1gload.c                                                              */
-/*                                                                         */
-/*    Type 1 Glyph Loader (body).                                          */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1gload.c
+ *
+ *   Type 1 Glyph Loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -29,14 +29,14 @@
 #include "t1errors.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1gload
+#define FT_COMPONENT  t1gload
 
 
   static FT_Error
@@ -62,6 +62,7 @@
     PS_Driver  driver = (PS_Driver)FT_FACE_DRIVER( face );
 #endif
 
+
     decoder->font_matrix = type1->font_matrix;
     decoder->font_offset = type1->font_offset;
 
@@ -249,6 +250,8 @@
 
     *max_advance = 0;
 
+    FT_TRACE6(( "T1_Compute_Max_Advance:\n" ));
+
     /* for each glyph, parse the glyph charstring and extract */
     /* the advance width                                      */
     for ( glyph_index = 0; glyph_index < type1->num_glyphs; glyph_index++ )
@@ -261,6 +264,9 @@
       /* ignore the error if one occurred - skip to next glyph */
     }
 
+    FT_TRACE6(( "T1_Compute_Max_Advance: max advance: %f\n",
+                *max_advance / 65536.0 ));
+
     psaux->t1_decoder_funcs->done( &decoder );
 
     return FT_Err_Ok;
@@ -282,11 +288,18 @@
     FT_Error       error;
 
 
+    FT_TRACE5(( "T1_Get_Advances:\n" ));
+
     if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
     {
       for ( nn = 0; nn < count; nn++ )
+      {
         advances[nn] = 0;
 
+        FT_TRACE5(( "  idx %d: advance height 0 font units\n",
+                    first + nn ));
+      }
+
       return FT_Err_Ok;
     }
 
@@ -320,6 +333,11 @@
         advances[nn] = FIXED_TO_INT( decoder.builder.advance.x );
       else
         advances[nn] = 0;
+
+      FT_TRACE5(( "  idx %d: advance width %d font unit%s\n",
+                  first + nn,
+                  advances[nn],
+                  advances[nn] == 1 ? "" : "s" ));
     }
 
     return FT_Err_Ok;
@@ -384,9 +402,9 @@
     t1glyph->outline.n_points   = 0;
     t1glyph->outline.n_contours = 0;
 
-    hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE   ) == 0 &&
-                       ( load_flags & FT_LOAD_NO_HINTING ) == 0 );
-    scaled  = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE   ) == 0 );
+    hinting = FT_BOOL( !( load_flags & FT_LOAD_NO_SCALE   ) &&
+                       !( load_flags & FT_LOAD_NO_HINTING ) );
+    scaled  = FT_BOOL( !( load_flags & FT_LOAD_NO_SCALE   ) );
 
     glyph->hint     = hinting;
     glyph->scaled   = scaled;
@@ -398,7 +416,7 @@
                                  t1glyph,
                                  (FT_Byte**)type1->glyph_names,
                                  face->blend,
-                                 FT_BOOL( hinting ),
+                                 hinting,
                                  FT_LOAD_TARGET_MODE( load_flags ),
                                  T1_Parse_Glyph );
     if ( error )
@@ -406,8 +424,7 @@
 
     must_finish_decoder = TRUE;
 
-    decoder.builder.no_recurse = FT_BOOL(
-                                   ( load_flags & FT_LOAD_NO_RECURSE ) != 0 );
+    decoder.builder.no_recurse = FT_BOOL( load_flags & FT_LOAD_NO_RECURSE );
 
     decoder.num_subrs     = type1->num_subrs;
     decoder.subrs         = type1->subrs;
@@ -528,7 +545,7 @@
 
 
           /* First of all, scale the points, if we are not hinting */
-          if ( !hinting || ! decoder.builder.hints_funcs )
+          if ( !hinting || !decoder.builder.hints_funcs )
             for ( n = cur->n_points; n > 0; n--, vec++ )
             {
               vec->x = FT_MulFix( vec->x, x_scale );
diff --git a/thirdparty/freetype/src/type1/t1gload.h b/thirdparty/freetype/src/type1/t1gload.h
index 72ef76f6ae..80440369dc 100644
--- a/thirdparty/freetype/src/type1/t1gload.h
+++ b/thirdparty/freetype/src/type1/t1gload.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1gload.h                                                              */
-/*                                                                         */
-/*    Type 1 Glyph Loader (specification).                                 */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1gload.h
+ *
+ *   Type 1 Glyph Loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1GLOAD_H_
diff --git a/thirdparty/freetype/src/type1/t1load.c b/thirdparty/freetype/src/type1/t1load.c
index 9dfa637a69..3896af70ba 100644
--- a/thirdparty/freetype/src/type1/t1load.c
+++ b/thirdparty/freetype/src/type1/t1load.c
@@ -1,63 +1,63 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1load.c                                                               */
-/*                                                                         */
-/*    Type 1 font loader (body).                                           */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This is the new and improved Type 1 data loader for FreeType 2.  The  */
-  /* old loader has several problems: it is slow, complex, difficult to    */
-  /* maintain, and contains incredible hacks to make it accept some        */
-  /* ill-formed Type 1 fonts without hiccup-ing.  Moreover, about 5% of    */
-  /* the Type 1 fonts on my machine still aren't loaded correctly by it.   */
-  /*                                                                       */
-  /* This version is much simpler, much faster and also easier to read and */
-  /* maintain by a great order of magnitude.  The idea behind it is to     */
-  /* _not_ try to read the Type 1 token stream with a state machine (i.e.  */
-  /* a Postscript-like interpreter) but rather to perform simple pattern   */
-  /* matching.                                                             */
-  /*                                                                       */
-  /* Indeed, nearly all data definitions follow a simple pattern like      */
-  /*                                                                       */
-  /*  ... /Field <data> ...                                                */
-  /*                                                                       */
-  /* where <data> can be a number, a boolean, a string, or an array of     */
-  /* numbers.  There are a few exceptions, namely the encoding, font name, */
-  /* charstrings, and subrs; they are handled with a special pattern       */
-  /* matching routine.                                                     */
-  /*                                                                       */
-  /* All other common cases are handled very simply.  The matching rules   */
-  /* are defined in the file `t1tokens.h' through the use of several       */
-  /* macros calls PARSE_XXX.  This file is included twice here; the first  */
-  /* time to generate parsing callback functions, the second time to       */
-  /* generate a table of keywords (with pointers to the associated         */
-  /* callback functions).                                                  */
-  /*                                                                       */
-  /* The function `parse_dict' simply scans *linearly* a given dictionary  */
-  /* (either the top-level or private one) and calls the appropriate       */
-  /* callback when it encounters an immediate keyword.                     */
-  /*                                                                       */
-  /* This is by far the fastest way one can find to parse and read all     */
-  /* data.                                                                 */
-  /*                                                                       */
-  /* This led to tremendous code size reduction.  Note that later, the     */
-  /* glyph loader will also be _greatly_ simplified, and the automatic     */
-  /* hinter will replace the clumsy `t1hinter'.                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * t1load.c
+ *
+ *   Type 1 font loader (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This is the new and improved Type 1 data loader for FreeType 2.  The
+   * old loader has several problems: it is slow, complex, difficult to
+   * maintain, and contains incredible hacks to make it accept some
+   * ill-formed Type 1 fonts without hiccup-ing.  Moreover, about 5% of
+   * the Type 1 fonts on my machine still aren't loaded correctly by it.
+   *
+   * This version is much simpler, much faster and also easier to read and
+   * maintain by a great order of magnitude.  The idea behind it is to
+   * _not_ try to read the Type 1 token stream with a state machine (i.e.
+   * a Postscript-like interpreter) but rather to perform simple pattern
+   * matching.
+   *
+   * Indeed, nearly all data definitions follow a simple pattern like
+   *
+   * ... /Field <data> ...
+   *
+   * where <data> can be a number, a boolean, a string, or an array of
+   * numbers.  There are a few exceptions, namely the encoding, font name,
+   * charstrings, and subrs; they are handled with a special pattern
+   * matching routine.
+   *
+   * All other common cases are handled very simply.  The matching rules
+   * are defined in the file `t1tokens.h' through the use of several
+   * macros calls PARSE_XXX.  This file is included twice here; the first
+   * time to generate parsing callback functions, the second time to
+   * generate a table of keywords (with pointers to the associated
+   * callback functions).
+   *
+   * The function `parse_dict' simply scans *linearly* a given dictionary
+   * (either the top-level or private one) and calls the appropriate
+   * callback when it encounters an immediate keyword.
+   *
+   * This is by far the fastest way one can find to parse and read all
+   * data.
+   *
+   * This led to tremendous code size reduction.  Note that later, the
+   * glyph loader will also be _greatly_ simplified, and the automatic
+   * hinter will replace the clumsy `t1hinter'.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -73,20 +73,20 @@
 
 
 #ifdef FT_CONFIG_OPTION_INCREMENTAL
-#define IS_INCREMENTAL  (FT_Bool)( face->root.internal->incremental_interface != 0 )
+#define IS_INCREMENTAL  FT_BOOL( face->root.internal->incremental_interface )
 #else
 #define IS_INCREMENTAL  0
 #endif
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1load
+#define FT_COMPONENT  t1load
 
 
 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
@@ -222,11 +222,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Given a normalized (blend) coordinate, figure out the design          */
-  /* coordinate appropriate for that value.                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Given a normalized (blend) coordinate, figure out the design
+   * coordinate appropriate for that value.
+   */
   static FT_Fixed
   mm_axis_unmap( PS_DesignMap  axismap,
                  FT_Fixed      ncv )
@@ -251,11 +251,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Given a vector of weights, one for each design, figure out the        */
-  /* normalized axis coordinates which gave rise to those weights.         */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Given a vector of weights, one for each design, figure out the
+   * normalized axis coordinates which gave rise to those weights.
+   */
   static void
   mm_weights_unmap( FT_Fixed*  weights,
                     FT_Fixed*  axiscoords,
@@ -293,11 +293,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Just a wrapper around T1_Get_Multi_Master to support the different    */
-  /*  arguments needed by the GX var distortable fonts.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Just a wrapper around T1_Get_Multi_Master to support the different
+   * arguments needed by the GX var distortable fonts.
+   */
   FT_LOCAL_DEF( FT_Error )
   T1_Get_MM_Var( T1_Face      face,
                  FT_MM_Var*  *master )
@@ -348,16 +348,13 @@
         mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' );
     }
 
-    if ( blend->num_designs == ( 1U << blend->num_axis ) )
-    {
-      mm_weights_unmap( blend->default_weight_vector,
-                        axiscoords,
-                        blend->num_axis );
+    mm_weights_unmap( blend->default_weight_vector,
+                      axiscoords,
+                      blend->num_axis );
 
-      for ( i = 0; i < mmaster.num_axis; i++ )
-        mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i],
-                                            axiscoords[i] );
-    }
+    for ( i = 0; i < mmaster.num_axis; i++ )
+      mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i],
+                                          axiscoords[i] );
 
     *master = mmvar;
 
@@ -387,24 +384,31 @@
     for ( n = 0; n < blend->num_designs; n++ )
     {
       FT_Fixed  result = 0x10000L;  /* 1.0 fixed */
+      FT_Fixed  factor;
 
 
       for ( m = 0; m < blend->num_axis; m++ )
       {
-        FT_Fixed  factor;
-
-
-        /* get current blend axis position;                  */
         /* use a default value if we don't have a coordinate */
-        factor = m < num_coords ? coords[m] : 0x8000;
-        if ( factor < 0 )
-          factor = 0;
-        if ( factor > 0x10000L )
-          factor = 0x10000L;
+        if ( m >= num_coords )
+        {
+          result >>= 1;
+          continue;
+        }
 
+        /* get current blend axis position */
+        factor = coords[m];
         if ( ( n & ( 1 << m ) ) == 0 )
           factor = 0x10000L - factor;
 
+        if ( factor <= 0 )
+        {
+          result = 0;
+          break;
+        }
+        else if ( factor >= 0x10000L )
+          continue;
+
         result = FT_MulFix( result, factor );
       }
 
@@ -477,6 +481,75 @@
 
 
   FT_LOCAL_DEF( FT_Error )
+  T1_Set_MM_WeightVector( T1_Face    face,
+                          FT_UInt    len,
+                          FT_Fixed*  weightvector )
+  {
+    PS_Blend  blend = face->blend;
+    FT_UInt   i, n;
+
+
+    if ( !blend )
+     return FT_THROW( Invalid_Argument );
+
+    if ( !len && !weightvector )
+    {
+      for ( i = 0; i < blend->num_designs; i++ )
+        blend->weight_vector[i] = blend->default_weight_vector[i];
+    }
+    else
+    {
+      if ( !weightvector )
+        return FT_THROW( Invalid_Argument );
+
+      n = len < blend->num_designs ? len : blend->num_designs;
+
+      for ( i = 0; i < n; i++ )
+        blend->weight_vector[i] = weightvector[i];
+
+      for ( ; i < blend->num_designs; i++ )
+        blend->weight_vector[i] = (FT_Fixed)0;
+
+      if ( len )
+        face->root.face_flags |= FT_FACE_FLAG_VARIATION;
+      else
+        face->root.face_flags &= ~FT_FACE_FLAG_VARIATION;
+    }
+
+    return FT_Err_Ok;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
+  T1_Get_MM_WeightVector( T1_Face    face,
+                          FT_UInt*   len,
+                          FT_Fixed*  weightvector )
+  {
+    PS_Blend  blend = face->blend;
+    FT_UInt   i;
+
+
+    if ( !blend )
+      return FT_THROW( Invalid_Argument );
+
+    if ( *len < blend->num_designs )
+    {
+      *len = blend->num_designs;
+      return FT_THROW( Invalid_Argument );
+    }
+
+    for ( i = 0; i < blend->num_designs; i++ )
+      weightvector[i] = blend->weight_vector[i];
+    for ( ; i < *len; i++ )
+      weightvector[i] = (FT_Fixed)0;
+
+    *len = blend->num_designs;
+
+    return FT_Err_Ok;
+  }
+
+
+  FT_LOCAL_DEF( FT_Error )
   T1_Set_MM_Design( T1_Face   face,
                     FT_UInt   num_coords,
                     FT_Long*  coords )
@@ -573,11 +646,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Just a wrapper around T1_Set_MM_Design to support the different       */
-  /* arguments needed by the GX var distortable fonts.                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * Just a wrapper around T1_Set_MM_Design to support the different
+   * arguments needed by the GX var distortable fonts.
+   */
   FT_LOCAL_DEF( FT_Error )
   T1_Set_Var_Design( T1_Face    face,
                      FT_UInt    num_coords,
@@ -719,6 +792,8 @@
     if ( error )
       goto Exit;
 
+    FT_TRACE4(( " [" ));
+
     blend  = face->blend;
     memory = face->root.memory;
 
@@ -741,11 +816,13 @@
         goto Exit;
       }
 
+      FT_TRACE4(( " /%.*s", len, token->start ));
+
       name = (FT_Byte*)blend->axis_names[n];
       if ( name )
       {
         FT_TRACE0(( "parse_blend_axis_types:"
-                    " overwriting axis name `%s' with `%*.s'\n",
+                    " overwriting axis name `%s' with `%.*s'\n",
                     name, len, token->start ));
         FT_FREE( name );
       }
@@ -758,6 +835,8 @@
       name[len] = '\0';
     }
 
+    FT_TRACE4(( "]\n" ));
+
   Exit:
     loader->parser.root.error = error;
   }
@@ -802,6 +881,8 @@
       blend    = face->blend;
       num_axis = 0;  /* make compiler happy */
 
+      FT_TRACE4(( " [" ));
+
       for ( n = 0; n < num_designs; n++ )
       {
         T1_TokenRec  axis_tokens[T1_MAX_MM_AXIS];
@@ -842,6 +923,7 @@
         }
 
         /* now read each axis token into the design position */
+        FT_TRACE4(( " [" )) ;
         for ( axis = 0; axis < n_axis; axis++ )
         {
           T1_Token  token2 = axis_tokens + axis;
@@ -850,9 +932,13 @@
           parser->root.cursor = token2->start;
           parser->root.limit  = token2->limit;
           blend->design_pos[n][axis] = T1_ToFixed( parser, 0 );
+          FT_TRACE4(( " %f", (double)blend->design_pos[n][axis] / 65536 ));
         }
+        FT_TRACE4(( "]" )) ;
       }
 
+      FT_TRACE4(( "]\n" ));
+
       loader->parser.root.cursor = old_cursor;
       loader->parser.root.limit  = old_limit;
     }
@@ -899,6 +985,8 @@
       goto Exit;
     blend = face->blend;
 
+    FT_TRACE4(( " [" ));
+
     /* now read each axis design map */
     for ( n = 0; n < num_axis; n++ )
     {
@@ -915,6 +1003,8 @@
       T1_ToTokenArray( parser, point_tokens,
                        T1_MAX_MM_MAP_POINTS, &num_points );
 
+      FT_TRACE4(( " [" ));
+
       if ( num_points <= 0 || num_points > T1_MAX_MM_MAP_POINTS )
       {
         FT_ERROR(( "parse_blend_design_map: incorrect table\n" ));
@@ -948,9 +1038,17 @@
 
         map->design_points[p] = T1_ToInt( parser );
         map->blend_points [p] = T1_ToFixed( parser, 0 );
+
+        FT_TRACE4(( " [%d %f]",
+                    map->design_points[p],
+                    (double)map->blend_points[p] / 65536 ));
       }
+
+      FT_TRACE4(( "]" ));
     }
 
+    FT_TRACE4(( "]\n" ));
+
     parser->root.cursor = old_cursor;
     parser->root.limit  = old_limit;
 
@@ -1010,6 +1108,8 @@
     old_cursor = parser->root.cursor;
     old_limit  = parser->root.limit;
 
+    FT_TRACE4(( "[" ));
+
     for ( n = 0; n < num_designs; n++ )
     {
       token = design_tokens + n;
@@ -1018,8 +1118,12 @@
 
       blend->default_weight_vector[n] =
       blend->weight_vector[n]         = T1_ToFixed( parser, 0 );
+
+      FT_TRACE4(( " %f", (double)blend->weight_vector[n] / 65536 ));
     }
 
+    FT_TRACE4(( "]\n" ));
+
     parser->root.cursor = old_cursor;
     parser->root.limit  = old_limit;
 
@@ -1036,6 +1140,20 @@
   {
     face->len_buildchar = (FT_UInt)T1_ToFixedArray( &loader->parser,
                                                     0, NULL, 0 );
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+    {
+      FT_UInt  i;
+
+
+      FT_TRACE4(( " [" ));
+      for ( i = 0; i < face->len_buildchar; i++ )
+        FT_TRACE4(( " 0" ));
+
+      FT_TRACE4(( "]\n" ));
+    }
+#endif
+
     return;
   }
 
@@ -1071,6 +1189,8 @@
     /* if the keyword has a dedicated callback, call it */
     if ( field->type == T1_FIELD_TYPE_CALLBACK )
     {
+      FT_TRACE4(( "  %s", field->ident ));
+
       field->reader( (FT_Face)face, loader );
       error = loader->parser.root.error;
       goto Exit;
@@ -1148,6 +1268,8 @@
       max_objects  = 0;
     }
 
+    FT_TRACE4(( "  %s", field->ident ));
+
     if ( *objects )
     {
       if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY ||
@@ -1167,6 +1289,8 @@
       error = FT_Err_Ok;
     }
 
+    FT_TRACE4(( "\n" ));
+
   Exit:
     return error;
   }
@@ -1179,6 +1303,8 @@
     FT_UNUSED( face );
 
     loader->keywords_encountered |= T1_PRIVATE;
+
+    FT_TRACE4(( "\n" ));
   }
 
 
@@ -1258,6 +1384,14 @@
       return;
     }
 
+    FT_TRACE4(( " [%f %f %f %f %f %f]\n",
+                (double)temp[0] / 65536 / 1000,
+                (double)temp[1] / 65536 / 1000,
+                (double)temp[2] / 65536 / 1000,
+                (double)temp[3] / 65536 / 1000,
+                (double)temp[4] / 65536 / 1000,
+                (double)temp[5] / 65536 / 1000 ));
+
     temp_scale = FT_ABS( temp[3] );
 
     if ( temp_scale == 0 )
@@ -1280,12 +1414,18 @@
       temp[5] = FT_DivFix( temp[5], temp_scale );
       temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L;
     }
-
     matrix->xx = temp[0];
     matrix->yx = temp[1];
     matrix->xy = temp[2];
     matrix->yy = temp[3];
 
+    if ( !FT_Matrix_Check( matrix ) )
+    {
+      FT_ERROR(( "t1_parse_font_matrix: invalid font matrix\n" ));
+      parser->root.error = FT_THROW( Invalid_File_Format );
+      return;
+    }
+
     /* note that the offsets must be expressed in integer font units */
     offset->x = temp[4] >> 16;
     offset->y = temp[5] >> 16;
@@ -1494,6 +1634,15 @@
         T1_Skip_Spaces( parser );
       }
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+      FT_TRACE4(( " [" ));
+
+      /* XXX show encoding vector */
+      FT_TRACE4(( "..." ));
+
+      FT_TRACE4(( "]\n" ));
+#endif
+
       face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY;
       parser->root.cursor       = cur;
     }
@@ -1504,18 +1653,30 @@
     {
       if ( cur + 17 < limit                                            &&
            ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 )
+      {
         face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD;
+        FT_TRACE4(( " StandardEncoding\n" ));
+      }
 
       else if ( cur + 15 < limit                                          &&
                 ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 )
+      {
         face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT;
+        FT_TRACE4(( " ExpertEncoding\n" ));
+      }
 
       else if ( cur + 18 < limit                                             &&
                 ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 )
+      {
         face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1;
+        FT_TRACE4(( " ISOLatin1Encoding\n" ));
+      }
 
       else
+      {
         parser->root.error = FT_ERR( Ignore );
+        FT_TRACE4(( "<unknown>\n" ));
+      }
     }
   }
 
@@ -1696,6 +1857,15 @@
     if ( !loader->num_subrs )
       loader->num_subrs = num_subrs;
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+      FT_TRACE4(( " <" ));
+
+      /* XXX show subrs? */
+      FT_TRACE4(( "%d elements", num_subrs ));
+
+      FT_TRACE4(( ">\n" ));
+#endif
+
     return;
 
   Fail:
@@ -2017,6 +2187,15 @@
       loader->num_glyphs += 1;
     }
 
+#ifdef FT_DEBUG_LEVEL_TRACE
+      FT_TRACE4(( " <" ));
+
+      /* XXX show charstrings? */
+      FT_TRACE4(( "%d elements", loader->num_glyphs ));
+
+      FT_TRACE4(( ">\n" ));
+#endif
+
     return;
 
   Fail:
@@ -2024,12 +2203,12 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* Define the token field static variables.  This is a set of            */
-  /* T1_FieldRec variables.                                                */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   * Define the token field static variables.  This is a set of
+   * T1_FieldRec variables.
+   *
+   */
 
 
   static
@@ -2216,6 +2395,7 @@
                     ? T1_FIELD_DICT_PRIVATE
                     : T1_FIELD_DICT_FONTDICT;
 
+
               if ( !( dict & keyword->dict ) )
               {
                 FT_TRACE1(( "parse_dict: found `%s' but ignoring it"
@@ -2330,6 +2510,7 @@
     if ( error )
       goto Exit;
 
+    FT_TRACE4(( " top dictionary:\n" ));
     error = parse_dict( face, &loader,
                         parser->base_dict, parser->base_len );
     if ( error )
@@ -2339,6 +2520,7 @@
     if ( error )
       goto Exit;
 
+    FT_TRACE4(( " private dictionary:\n" ));
     error = parse_dict( face, &loader,
                         parser->private_dict, parser->private_len );
     if ( error )
@@ -2349,6 +2531,16 @@
 
 #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
 
+    /* we don't support Multiple Master fonts with intermediate designs; */
+    /* this implies that `num_designs' must be equal to `2^^num_axis'    */
+    if ( face->blend                                                 &&
+         face->blend->num_designs != ( 1U << face->blend->num_axis ) )
+    {
+      FT_ERROR(( "T1_Open_Face:"
+                 " number-of-designs != 2 ^^ number-of-axes\n" ));
+      T1_Done_Blend( face );
+    }
+
     if ( face->blend                                                     &&
          face->blend->num_default_design_vector != 0                     &&
          face->blend->num_default_design_vector != face->blend->num_axis )
diff --git a/thirdparty/freetype/src/type1/t1load.h b/thirdparty/freetype/src/type1/t1load.h
index 03be3f7f93..44f835bde2 100644
--- a/thirdparty/freetype/src/type1/t1load.h
+++ b/thirdparty/freetype/src/type1/t1load.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1load.h                                                               */
-/*                                                                         */
-/*    Type 1 font loader (specification).                                  */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1load.h
+ *
+ *   Type 1 font loader (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1LOAD_H_
@@ -106,6 +106,16 @@ FT_BEGIN_HEADER
   FT_LOCAL( void )
   T1_Done_Blend( T1_Face  face );
 
+  FT_LOCAL( FT_Error )
+  T1_Set_MM_WeightVector( T1_Face    face,
+                          FT_UInt    len,
+                          FT_Fixed*  weightvector );
+
+  FT_LOCAL( FT_Error )
+  T1_Get_MM_WeightVector( T1_Face    face,
+                          FT_UInt*   len,
+                          FT_Fixed*  weightvector );
+
 #endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */
 
 
diff --git a/thirdparty/freetype/src/type1/t1objs.c b/thirdparty/freetype/src/type1/t1objs.c
index 7333c4c958..741388a645 100644
--- a/thirdparty/freetype/src/type1/t1objs.c
+++ b/thirdparty/freetype/src/type1/t1objs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1objs.c                                                               */
-/*                                                                         */
-/*    Type 1 objects manager (body).                                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1objs.c
+ *
+ *   Type 1 objects manager (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -36,21 +36,21 @@
 #include FT_INTERNAL_POSTSCRIPT_AUX_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1objs
+#define FT_COMPONENT  t1objs
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            SIZE FUNCTIONS                             */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                           SIZE FUNCTIONS
+   *
+   */
 
 
   static PSH_Globals_Funcs
@@ -133,11 +133,11 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            SLOT  FUNCTIONS                            */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                           SLOT  FUNCTIONS
+   *
+   */
 
   FT_LOCAL_DEF( void )
   T1_GlyphSlot_Done( FT_GlyphSlot  slot )
@@ -177,24 +177,25 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                            FACE  FUNCTIONS                            */
-  /*                                                                       */
-  /*************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    T1_Face_Done                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The face object destructor.                                        */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    face :: A typeless pointer to the face object to destroy.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   *                           FACE  FUNCTIONS
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @Function:
+   *   T1_Face_Done
+   *
+   * @Description:
+   *   The face object destructor.
+   *
+   * @Input:
+   *   face ::
+   *     A typeless pointer to the face object to destroy.
+   */
   FT_LOCAL_DEF( void )
   T1_Face_Done( FT_Face  t1face )         /* T1_Face */
   {
@@ -274,29 +275,34 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    T1_Face_Init                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    The face object constructor.                                       */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    stream     ::  input stream where to load font data.               */
-  /*                                                                       */
-  /*    face_index :: The index of the font face in the resource.          */
-  /*                                                                       */
-  /*    num_params :: Number of additional generic parameters.  Ignored.   */
-  /*                                                                       */
-  /*    params     :: Additional generic parameters.  Ignored.             */
-  /*                                                                       */
-  /* <InOut>                                                               */
-  /*    face       :: The face record to build.                            */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   T1_Face_Init
+   *
+   * @Description:
+   *   The face object constructor.
+   *
+   * @Input:
+   *   stream ::
+   *     input stream where to load font data.
+   *
+   *   face_index ::
+   *     The index of the font face in the resource.
+   *
+   *   num_params ::
+   *     Number of additional generic parameters.  Ignored.
+   *
+   *   params ::
+   *     Additional generic parameters.  Ignored.
+   *
+   * @InOut:
+   *   face ::
+   *     The face record to build.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   T1_Face_Init( FT_Stream      stream,
                 FT_Face        t1face,          /* T1_Face */
@@ -341,6 +347,10 @@
     if ( error )
       goto Exit;
 
+    FT_TRACE2(( "T1_Face_Init: %08p (index %d)\n",
+                face,
+                face_index ));
+
     /* if we just wanted to check the format, leave successfully now */
     if ( face_index < 0 )
       goto Exit;
@@ -516,7 +526,8 @@
 
         error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL );
         if ( error                                      &&
-             FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) )
+             FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) &&
+             FT_ERR_NEQ( error, Unimplemented_Feature ) )
           goto Exit;
         error = FT_Err_Ok;
 
@@ -564,20 +575,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    T1_Driver_Init                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given Type 1 driver object.                          */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target driver object.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   T1_Driver_Init
+   *
+   * @Description:
+   *   Initializes a given Type 1 driver object.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target driver object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   T1_Driver_Init( FT_Module  module )
   {
@@ -620,17 +632,18 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    T1_Driver_Done                                                     */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Finalizes a given Type 1 driver.                                   */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target Type 1 driver.                    */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   T1_Driver_Done
+   *
+   * @Description:
+   *   Finalizes a given Type 1 driver.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target Type 1 driver.
+   */
   FT_LOCAL_DEF( void )
   T1_Driver_Done( FT_Module  driver )
   {
diff --git a/thirdparty/freetype/src/type1/t1objs.h b/thirdparty/freetype/src/type1/t1objs.h
index 8298e036f4..2161091f77 100644
--- a/thirdparty/freetype/src/type1/t1objs.h
+++ b/thirdparty/freetype/src/type1/t1objs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1objs.h                                                               */
-/*                                                                         */
-/*    Type 1 objects manager (specification).                              */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1objs.h
+ *
+ *   Type 1 objects manager (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1OBJS_H_
@@ -34,59 +34,59 @@ FT_BEGIN_HEADER
   typedef struct T1_Glyph_Hints_  T1_Glyph_Hints;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    T1_Size                                                            */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 size object.                                  */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   T1_Size
+   *
+   * @Description:
+   *   A handle to a Type 1 size object.
+   */
   typedef struct T1_SizeRec_*  T1_Size;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    T1_GlyphSlot                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 glyph slot object.                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   T1_GlyphSlot
+   *
+   * @Description:
+   *   A handle to a Type 1 glyph slot object.
+   */
   typedef struct T1_GlyphSlotRec_*  T1_GlyphSlot;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    T1_CharMap                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A handle to a Type 1 character mapping object.                     */
-  /*                                                                       */
-  /* <Note>                                                                */
-  /*    The Type 1 format doesn't use a charmap but an encoding table.     */
-  /*    The driver is responsible for making up charmap objects            */
-  /*    corresponding to these tables.                                     */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   T1_CharMap
+   *
+   * @Description:
+   *   A handle to a Type 1 character mapping object.
+   *
+   * @Note:
+   *   The Type 1 format doesn't use a charmap but an encoding table.
+   *   The driver is responsible for making up charmap objects
+   *   corresponding to these tables.
+   */
   typedef struct T1_CharMapRec_*   T1_CharMap;
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /*                  HERE BEGINS THE TYPE1 SPECIFIC STUFF                 */
-  /*                                                                       */
-  /*************************************************************************/
+  /**************************************************************************
+   *
+   *                 HERE BEGINS THE TYPE1 SPECIFIC STUFF
+   *
+   */
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    T1_SizeRec                                                         */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Type 1 size record.                                                */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   T1_SizeRec
+   *
+   * @Description:
+   *   Type 1 size record.
+   */
   typedef struct  T1_SizeRec_
   {
     FT_SizeRec  root;
@@ -105,14 +105,14 @@ FT_BEGIN_HEADER
   T1_Size_Init( FT_Size  size );
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Type>                                                                */
-  /*    T1_GlyphSlotRec                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Type 1 glyph slot record.                                          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Type:
+   *   T1_GlyphSlotRec
+   *
+   * @Description:
+   *   Type 1 glyph slot record.
+   */
   typedef struct  T1_GlyphSlotRec_
   {
     FT_GlyphSlotRec  root;
diff --git a/thirdparty/freetype/src/type1/t1parse.c b/thirdparty/freetype/src/type1/t1parse.c
index 8e201e5ef5..56caeb9e40 100644
--- a/thirdparty/freetype/src/type1/t1parse.c
+++ b/thirdparty/freetype/src/type1/t1parse.c
@@ -1,36 +1,36 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1parse.c                                                              */
-/*                                                                         */
-/*    Type 1 parser (body).                                                */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* The Type 1 parser is in charge of the following:                      */
-  /*                                                                       */
-  /*  - provide an implementation of a growing sequence of objects called  */
-  /*    a `T1_Table' (used to build various tables needed by the loader).  */
-  /*                                                                       */
-  /*  - opening .pfb and .pfa files to extract their top-level and private */
-  /*    dictionaries.                                                      */
-  /*                                                                       */
-  /*  - read numbers, arrays & strings from any dictionary.                */
-  /*                                                                       */
-  /* See `t1load.c' to see how data is loaded from the font file.          */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * t1parse.c
+ *
+ *   Type 1 parser (body).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * The Type 1 parser is in charge of the following:
+   *
+   * - provide an implementation of a growing sequence of objects called
+   *   a `T1_Table' (used to build various tables needed by the loader).
+   *
+   * - opening .pfb and .pfa files to extract their top-level and private
+   *   dictionaries.
+   *
+   * - read numbers, arrays & strings from any dictionary.
+   *
+   * See `t1load.c' to see how data is loaded from the font file.
+   *
+   */
 
 
 #include <ft2build.h>
@@ -43,14 +43,14 @@
 #include "t1errors.h"
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t1parse
+#define FT_COMPONENT  t1parse
 
 
   /*************************************************************************/
@@ -169,21 +169,21 @@
       }
     }
 
-    /******************************************************************/
-    /*                                                                */
-    /* Here a short summary of what is going on:                      */
-    /*                                                                */
-    /*   When creating a new Type 1 parser, we try to locate and load */
-    /*   the base dictionary if this is possible (i.e., for PFB       */
-    /*   files).  Otherwise, we load the whole font into memory.      */
-    /*                                                                */
-    /*   When `loading' the base dictionary, we only setup pointers   */
-    /*   in the case of a memory-based stream.  Otherwise, we         */
-    /*   allocate and load the base dictionary in it.                 */
-    /*                                                                */
-    /*   parser->in_pfb is set if we are in a binary (`.pfb') font.   */
-    /*   parser->in_memory is set if we have a memory stream.         */
-    /*                                                                */
+    /*******************************************************************
+     *
+     * Here a short summary of what is going on:
+     *
+     *   When creating a new Type 1 parser, we try to locate and load
+     *   the base dictionary if this is possible (i.e., for PFB
+     *   files).  Otherwise, we load the whole font into memory.
+     *
+     *   When `loading' the base dictionary, we only setup pointers
+     *   in the case of a memory-based stream.  Otherwise, we
+     *   allocate and load the base dictionary in it.
+     *
+     *   parser->in_pfb is set if we are in a binary (`.pfb') font.
+     *   parser->in_memory is set if we have a memory stream.
+     */
 
     /* try to compute the size of the base dictionary;     */
     /* look for a Postscript binary file tag, i.e., 0x8001 */
diff --git a/thirdparty/freetype/src/type1/t1parse.h b/thirdparty/freetype/src/type1/t1parse.h
index 4ac82ae913..dab8fddc8b 100644
--- a/thirdparty/freetype/src/type1/t1parse.h
+++ b/thirdparty/freetype/src/type1/t1parse.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1parse.h                                                              */
-/*                                                                         */
-/*    Type 1 parser (specification).                                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1parse.h
+ *
+ *   Type 1 parser (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T1PARSE_H_
@@ -28,36 +28,45 @@
 FT_BEGIN_HEADER
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Struct>                                                              */
-  /*    T1_ParserRec                                                       */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    A PS_ParserRec is an object used to parse a Type 1 fonts very      */
-  /*    quickly.                                                           */
-  /*                                                                       */
-  /* <Fields>                                                              */
-  /*    root         :: The root parser.                                   */
-  /*                                                                       */
-  /*    stream       :: The current input stream.                          */
-  /*                                                                       */
-  /*    base_dict    :: A pointer to the top-level dictionary.             */
-  /*                                                                       */
-  /*    base_len     :: The length in bytes of the top dictionary.         */
-  /*                                                                       */
-  /*    private_dict :: A pointer to the private dictionary.               */
-  /*                                                                       */
-  /*    private_len  :: The length in bytes of the private dictionary.     */
-  /*                                                                       */
-  /*    in_pfb       :: A boolean.  Indicates that we are handling a PFB   */
-  /*                    file.                                              */
-  /*                                                                       */
-  /*    in_memory    :: A boolean.  Indicates a memory-based stream.       */
-  /*                                                                       */
-  /*    single_block :: A boolean.  Indicates that the private dictionary  */
-  /*                    is stored in lieu of the base dictionary.          */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Struct:
+   *   T1_ParserRec
+   *
+   * @Description:
+   *   A PS_ParserRec is an object used to parse a Type 1 fonts very
+   *   quickly.
+   *
+   * @Fields:
+   *   root ::
+   *     The root parser.
+   *
+   *   stream ::
+   *     The current input stream.
+   *
+   *   base_dict ::
+   *     A pointer to the top-level dictionary.
+   *
+   *   base_len ::
+   *     The length in bytes of the top dictionary.
+   *
+   *   private_dict ::
+   *     A pointer to the private dictionary.
+   *
+   *   private_len ::
+   *     The length in bytes of the private dictionary.
+   *
+   *   in_pfb ::
+   *     A boolean.  Indicates that we are handling a PFB
+   *     file.
+   *
+   *   in_memory ::
+   *     A boolean.  Indicates a memory-based stream.
+   *
+   *   single_block ::
+   *     A boolean.  Indicates that the private dictionary
+   *     is stored in lieu of the base dictionary.
+   */
   typedef struct  T1_ParserRec_
   {
     PS_ParserRec  root;
diff --git a/thirdparty/freetype/src/type1/t1tokens.h b/thirdparty/freetype/src/type1/t1tokens.h
index 43a65d88ea..97f2dbe0cf 100644
--- a/thirdparty/freetype/src/type1/t1tokens.h
+++ b/thirdparty/freetype/src/type1/t1tokens.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t1tokens.h                                                             */
-/*                                                                         */
-/*    Type 1 tokenizer (specification).                                    */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t1tokens.h
+ *
+ *   Type 1 tokenizer (specification).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #undef  FT_STRUCTURE
diff --git a/thirdparty/freetype/src/type1/type1.c b/thirdparty/freetype/src/type1/type1.c
index 72eff59bfe..ce8557a5fb 100644
--- a/thirdparty/freetype/src/type1/type1.c
+++ b/thirdparty/freetype/src/type1/type1.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  type1.c                                                                */
-/*                                                                         */
-/*    FreeType Type 1 driver component (body only).                        */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * type1.c
+ *
+ *   FreeType Type 1 driver component (body only).
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/type42/module.mk b/thirdparty/freetype/src/type42/module.mk
index 3d4732bb6f..9e9d15455b 100644
--- a/thirdparty/freetype/src/type42/module.mk
+++ b/thirdparty/freetype/src/type42/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2002-2018 by
+# Copyright (C) 2002-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/type42/rules.mk b/thirdparty/freetype/src/type42/rules.mk
index 9325d3898f..9d71f5300e 100644
--- a/thirdparty/freetype/src/type42/rules.mk
+++ b/thirdparty/freetype/src/type42/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 2002-2018 by
+# Copyright (C) 2002-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/type42/t42drivr.c b/thirdparty/freetype/src/type42/t42drivr.c
index f579b2708c..6d4e7a0955 100644
--- a/thirdparty/freetype/src/type42/t42drivr.c
+++ b/thirdparty/freetype/src/type42/t42drivr.c
@@ -1,39 +1,39 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42drivr.c                                                             */
-/*                                                                         */
-/*    High-level Type 42 driver interface (body).                          */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This driver implements Type42 fonts as described in the               */
-  /* Technical Note #5012 from Adobe, with these limitations:              */
-  /*                                                                       */
-  /* 1) CID Fonts are not currently supported.                             */
-  /* 2) Incremental fonts making use of the GlyphDirectory keyword         */
-  /*    will be loaded, but the rendering will be using the TrueType       */
-  /*    tables.                                                            */
-  /* 3) As for Type1 fonts, CDevProc is not supported.                     */
-  /* 4) The Metrics dictionary is not supported.                           */
-  /* 5) AFM metrics are not supported.                                     */
-  /*                                                                       */
-  /* In other words, this driver supports Type42 fonts derived from        */
-  /* TrueType fonts in a non-CID manner, as done by usual conversion       */
-  /* programs.                                                             */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * t42drivr.c
+ *
+ *   High-level Type 42 driver interface (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This driver implements Type42 fonts as described in the
+   * Technical Note #5012 from Adobe, with these limitations:
+   *
+   * 1) CID Fonts are not currently supported.
+   * 2) Incremental fonts making use of the GlyphDirectory keyword
+   *    will be loaded, but the rendering will be using the TrueType
+   *    tables.
+   * 3) As for Type1 fonts, CDevProc is not supported.
+   * 4) The Metrics dictionary is not supported.
+   * 5) AFM metrics are not supported.
+   *
+   * In other words, this driver supports Type42 fonts derived from
+   * TrueType fonts in a non-CID manner, as done by usual conversion
+   * programs.
+   *
+   */
 
 
 #include "t42drivr.h"
@@ -47,12 +47,12 @@
 #include FT_SERVICE_POSTSCRIPT_INFO_H
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t42
+#define FT_COMPONENT  t42
 
 
   /*
    *
-   *  GLYPH DICT SERVICE
+   * GLYPH DICT SERVICE
    *
    */
 
@@ -98,7 +98,7 @@
 
   /*
    *
-   *  POSTSCRIPT NAME SERVICE
+   * POSTSCRIPT NAME SERVICE
    *
    */
 
@@ -117,7 +117,7 @@
 
   /*
    *
-   *  POSTSCRIPT INFO SERVICE
+   * POSTSCRIPT INFO SERVICE
    *
    */
 
@@ -173,7 +173,7 @@
 
   /*
    *
-   *  SERVICE LIST
+   * SERVICE LIST
    *
    */
 
diff --git a/thirdparty/freetype/src/type42/t42drivr.h b/thirdparty/freetype/src/type42/t42drivr.h
index 3667f3e066..a35ca28f84 100644
--- a/thirdparty/freetype/src/type42/t42drivr.h
+++ b/thirdparty/freetype/src/type42/t42drivr.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42drivr.h                                                             */
-/*                                                                         */
-/*    High-level Type 42 driver interface (specification).                 */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t42drivr.h
+ *
+ *   High-level Type 42 driver interface (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T42DRIVR_H_
@@ -26,14 +26,8 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
-
-
   FT_EXPORT_VAR( const FT_Driver_ClassRec )  t42_driver_class;
 
-
 FT_END_HEADER
 
 
diff --git a/thirdparty/freetype/src/type42/t42error.h b/thirdparty/freetype/src/type42/t42error.h
index e3978a7607..5fb2143949 100644
--- a/thirdparty/freetype/src/type42/t42error.h
+++ b/thirdparty/freetype/src/type42/t42error.h
@@ -1,26 +1,26 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42error.h                                                             */
-/*                                                                         */
-/*    Type 42 error codes (specification only).                            */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the Type 42 error enumeration constants.  */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * t42error.h
+ *
+ *   Type 42 error codes (specification only).
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the Type 42 error enumeration constants.
+   *
+   */
 
 #ifndef T42ERROR_H_
 #define T42ERROR_H_
diff --git a/thirdparty/freetype/src/type42/t42objs.c b/thirdparty/freetype/src/type42/t42objs.c
index 66e5c40382..234c0a3e97 100644
--- a/thirdparty/freetype/src/type42/t42objs.c
+++ b/thirdparty/freetype/src/type42/t42objs.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42objs.c                                                              */
-/*                                                                         */
-/*    Type 42 objects manager (body).                                      */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t42objs.c
+ *
+ *   Type 42 objects manager (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "t42objs.h"
@@ -25,7 +25,7 @@
 
 
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t42
+#define FT_COMPONENT  t42
 
 
   static FT_Error
@@ -354,7 +354,8 @@
 
         error = FT_CMap_New( cmap_classes->unicode, NULL, &charmap, NULL );
         if ( error                                      &&
-             FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) )
+             FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) &&
+             FT_ERR_NEQ( error, Unimplemented_Feature ) )
           goto Exit;
         error = FT_Err_Ok;
 
@@ -457,20 +458,21 @@
   }
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* <Function>                                                            */
-  /*    T42_Driver_Init                                                    */
-  /*                                                                       */
-  /* <Description>                                                         */
-  /*    Initializes a given Type 42 driver object.                         */
-  /*                                                                       */
-  /* <Input>                                                               */
-  /*    driver :: A handle to the target driver object.                    */
-  /*                                                                       */
-  /* <Return>                                                              */
-  /*    FreeType error code.  0 means success.                             */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * @Function:
+   *   T42_Driver_Init
+   *
+   * @Description:
+   *   Initializes a given Type 42 driver object.
+   *
+   * @Input:
+   *   driver ::
+   *     A handle to the target driver object.
+   *
+   * @Return:
+   *   FreeType error code.  0 means success.
+   */
   FT_LOCAL_DEF( FT_Error )
   T42_Driver_Init( FT_Module  module )        /* T42_Driver */
   {
diff --git a/thirdparty/freetype/src/type42/t42objs.h b/thirdparty/freetype/src/type42/t42objs.h
index 3bad5135e0..98300cf348 100644
--- a/thirdparty/freetype/src/type42/t42objs.h
+++ b/thirdparty/freetype/src/type42/t42objs.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42objs.h                                                              */
-/*                                                                         */
-/*    Type 42 objects manager (specification).                             */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t42objs.h
+ *
+ *   Type 42 objects manager (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T42OBJS_H_
diff --git a/thirdparty/freetype/src/type42/t42parse.c b/thirdparty/freetype/src/type42/t42parse.c
index 4813d1f3f9..b653a133a5 100644
--- a/thirdparty/freetype/src/type42/t42parse.c
+++ b/thirdparty/freetype/src/type42/t42parse.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42parse.c                                                             */
-/*                                                                         */
-/*    Type 42 font parser (body).                                          */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t42parse.c
+ *
+ *   Type 42 font parser (body).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include "t42parse.h"
@@ -23,14 +23,14 @@
 #include FT_INTERNAL_POSTSCRIPT_AUX_H
 
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_t42
+#define FT_COMPONENT  t42
 
 
   static void
@@ -149,19 +149,19 @@
     parser->base_dict = NULL;
     parser->in_memory = 0;
 
-    /*******************************************************************/
-    /*                                                                 */
-    /* Here a short summary of what is going on:                       */
-    /*                                                                 */
-    /*   When creating a new Type 42 parser, we try to locate and load */
-    /*   the base dictionary, loading the whole font into memory.      */
-    /*                                                                 */
-    /*   When `loading' the base dictionary, we only set up pointers   */
-    /*   in the case of a memory-based stream.  Otherwise, we allocate */
-    /*   and load the base dictionary in it.                           */
-    /*                                                                 */
-    /*   parser->in_memory is set if we have a memory stream.          */
-    /*                                                                 */
+    /********************************************************************
+     *
+     * Here a short summary of what is going on:
+     *
+     *   When creating a new Type 42 parser, we try to locate and load
+     *   the base dictionary, loading the whole font into memory.
+     *
+     *   When `loading' the base dictionary, we only set up pointers
+     *   in the case of a memory-based stream.  Otherwise, we allocate
+     *   and load the base dictionary in it.
+     *
+     *   parser->in_memory is set if we have a memory stream.
+     */
 
     if ( FT_STREAM_SEEK( 0L ) ||
          FT_FRAME_ENTER( 17 ) )
@@ -284,6 +284,13 @@
     matrix->xy = temp[2];
     matrix->yy = temp[3];
 
+    if ( !FT_Matrix_Check( matrix ) )
+    {
+      FT_ERROR(( "t42_parse_font_matrix: invalid font matrix\n" ));
+      parser->root.error = FT_THROW( Invalid_File_Format );
+      return;
+    }
+
     /* note that the offsets must be expressed in integer font units */
     offset->x = temp[4] >> 16;
     offset->y = temp[5] >> 16;
@@ -588,6 +595,14 @@
 
       else if ( *cur == '<' )
       {
+        if ( string_buf && !allocated )
+        {
+          FT_ERROR(( "t42_parse_sfnts: "
+                     "can't handle mixed binary and hex strings\n" ));
+          error = FT_THROW( Invalid_File_Format );
+          goto Fail;
+        }
+
         T1_Skip_PS_Token( parser );
         if ( parser->root.error )
           goto Exit;
diff --git a/thirdparty/freetype/src/type42/t42parse.h b/thirdparty/freetype/src/type42/t42parse.h
index f35d23de63..0c7bb48496 100644
--- a/thirdparty/freetype/src/type42/t42parse.h
+++ b/thirdparty/freetype/src/type42/t42parse.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42parse.h                                                             */
-/*                                                                         */
-/*    Type 42 font parser (specification).                                 */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t42parse.h
+ *
+ *   Type 42 font parser (specification).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T42PARSE_H_
diff --git a/thirdparty/freetype/src/type42/t42types.h b/thirdparty/freetype/src/type42/t42types.h
index d0aa2de570..a258144ec3 100644
--- a/thirdparty/freetype/src/type42/t42types.h
+++ b/thirdparty/freetype/src/type42/t42types.h
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  t42types.h                                                             */
-/*                                                                         */
-/*    Type 42 font data types (specification only).                        */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  Roberto Alameda.                                                       */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * t42types.h
+ *
+ *   Type 42 font data types (specification only).
+ *
+ * Copyright (C) 2002-2019 by
+ * Roberto Alameda.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef T42TYPES_H_
diff --git a/thirdparty/freetype/src/type42/type42.c b/thirdparty/freetype/src/type42/type42.c
index 6a89cfbed1..0cb7b77eec 100644
--- a/thirdparty/freetype/src/type42/type42.c
+++ b/thirdparty/freetype/src/type42/type42.c
@@ -1,19 +1,19 @@
-/***************************************************************************/
-/*                                                                         */
-/*  type42.c                                                               */
-/*                                                                         */
-/*    FreeType Type 42 driver component.                                   */
-/*                                                                         */
-/*  Copyright 2002-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * type42.c
+ *
+ *   FreeType Type 42 driver component.
+ *
+ * Copyright (C) 2002-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #define FT_MAKE_OPTION_SINGLE_OBJECT
diff --git a/thirdparty/freetype/src/winfonts/fnterrs.h b/thirdparty/freetype/src/winfonts/fnterrs.h
index 3a86af5aac..af29307c75 100644
--- a/thirdparty/freetype/src/winfonts/fnterrs.h
+++ b/thirdparty/freetype/src/winfonts/fnterrs.h
@@ -1,27 +1,27 @@
-/***************************************************************************/
-/*                                                                         */
-/*  fnterrs.h                                                              */
-/*                                                                         */
-/*    Win FNT/FON error codes (specification only).                        */
-/*                                                                         */
-/*  Copyright 2001-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
-
-
-  /*************************************************************************/
-  /*                                                                       */
-  /* This file is used to define the Windows FNT/FON error enumeration     */
-  /* constants.                                                            */
-  /*                                                                       */
-  /*************************************************************************/
+/****************************************************************************
+ *
+ * fnterrs.h
+ *
+ *   Win FNT/FON error codes (specification only).
+ *
+ * Copyright (C) 2001-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+  /**************************************************************************
+   *
+   * This file is used to define the Windows FNT/FON error enumeration
+   * constants.
+   *
+   */
 
 #ifndef FNTERRS_H_
 #define FNTERRS_H_
diff --git a/thirdparty/freetype/src/winfonts/module.mk b/thirdparty/freetype/src/winfonts/module.mk
index 13f9077cfc..82fb0151f8 100644
--- a/thirdparty/freetype/src/winfonts/module.mk
+++ b/thirdparty/freetype/src/winfonts/module.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/winfonts/rules.mk b/thirdparty/freetype/src/winfonts/rules.mk
index d694d1a771..998d49bc9f 100644
--- a/thirdparty/freetype/src/winfonts/rules.mk
+++ b/thirdparty/freetype/src/winfonts/rules.mk
@@ -3,7 +3,7 @@
 #
 
 
-# Copyright 1996-2018 by
+# Copyright (C) 1996-2019 by
 # David Turner, Robert Wilhelm, and Werner Lemberg.
 #
 # This file is part of the FreeType project, and may only be used, modified,
diff --git a/thirdparty/freetype/src/winfonts/winfnt.c b/thirdparty/freetype/src/winfonts/winfnt.c
index 36bd3148d5..2d771be2cc 100644
--- a/thirdparty/freetype/src/winfonts/winfnt.c
+++ b/thirdparty/freetype/src/winfonts/winfnt.c
@@ -1,21 +1,21 @@
-/***************************************************************************/
-/*                                                                         */
-/*  winfnt.c                                                               */
-/*                                                                         */
-/*    FreeType font driver for Windows FNT/FON files                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*  Copyright 2003 Huw D M Davies for Codeweavers                          */
-/*  Copyright 2007 Dmitry Timoshkov for Codeweavers                        */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * winfnt.c
+ *
+ *   FreeType font driver for Windows FNT/FON files
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ * Copyright 2003 Huw D M Davies for Codeweavers
+ * Copyright 2007 Dmitry Timoshkov for Codeweavers
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #include <ft2build.h>
@@ -30,14 +30,14 @@
 #include FT_SERVICE_WINFNT_H
 #include FT_SERVICE_FONT_FORMAT_H
 
-  /*************************************************************************/
-  /*                                                                       */
-  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
-  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
-  /* messages during execution.                                            */
-  /*                                                                       */
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
 #undef  FT_COMPONENT
-#define FT_COMPONENT  trace_winfnt
+#define FT_COMPONENT  winfnt
 
 
   static const FT_Frame_Field  winmz_header_fields[] =
@@ -1131,10 +1131,10 @@
     winfnt_get_header       /* get_header */
   };
 
- /*
-  *  SERVICE LIST
-  *
-  */
+  /*
+   * SERVICE LIST
+   *
+   */
 
   static const FT_ServiceDescRec  winfnt_services[] =
   {
diff --git a/thirdparty/freetype/src/winfonts/winfnt.h b/thirdparty/freetype/src/winfonts/winfnt.h
index 4885c9d745..b628ad4c42 100644
--- a/thirdparty/freetype/src/winfonts/winfnt.h
+++ b/thirdparty/freetype/src/winfonts/winfnt.h
@@ -1,20 +1,20 @@
-/***************************************************************************/
-/*                                                                         */
-/*  winfnt.h                                                               */
-/*                                                                         */
-/*    FreeType font driver for Windows FNT/FON files                       */
-/*                                                                         */
-/*  Copyright 1996-2018 by                                                 */
-/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
-/*  Copyright 2007 Dmitry Timoshkov for Codeweavers                        */
-/*                                                                         */
-/*  This file is part of the FreeType project, and may only be used,       */
-/*  modified, and distributed under the terms of the FreeType project      */
-/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
-/*  this file you indicate that you have read the license and              */
-/*  understand and accept it fully.                                        */
-/*                                                                         */
-/***************************************************************************/
+/****************************************************************************
+ *
+ * winfnt.h
+ *
+ *   FreeType font driver for Windows FNT/FON files
+ *
+ * Copyright (C) 1996-2019 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ * Copyright 2007 Dmitry Timoshkov for Codeweavers
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
 
 
 #ifndef WINFNT_H_
@@ -28,9 +28,6 @@
 
 FT_BEGIN_HEADER
 
-#ifdef FT_CONFIG_OPTION_PIC
-#error "this module does not support PIC yet"
-#endif
 
   typedef struct  WinMZ_HeaderRec_
   {
@@ -153,9 +150,6 @@ FT_BEGIN_HEADER
     FT_FaceRec     root;
     FNT_Font       font;
 
-    FT_CharMap     charmap_handle;
-    FT_CharMapRec  charmap;  /* a single charmap per face */
-
   } FNT_FaceRec, *FNT_Face;
 
 
diff --git a/thirdparty/glad/glad.c b/thirdparty/glad/glad.c
index e7c64a7e17..9704c1079f 100644
--- a/thirdparty/glad/glad.c
+++ b/thirdparty/glad/glad.c
@@ -1,6 +1,6 @@
 /*
 
-    OpenGL loader generated by glad 0.1.29 on Mon Mar  4 12:47:22 2019.
+    OpenGL loader generated by glad 0.1.29 on Wed May  1 23:16:34 2019.
 
     Language/Generator: C/C++
     Specification: gl
@@ -9,6 +9,8 @@
     Extensions:
         GL_ARB_debug_output,
         GL_ARB_framebuffer_object,
+        GL_EXT_framebuffer_blit,
+        GL_EXT_framebuffer_multisample,
         GL_EXT_framebuffer_object
     Loader: True
     Local files: False
@@ -16,9 +18,9 @@
     Reproducible: False
 
     Commandline:
-        --profile="compatibility" --api="gl=3.3" --generator="c" --spec="gl" --extensions="GL_ARB_debug_output,GL_ARB_framebuffer_object,GL_EXT_framebuffer_object"
+        --profile="compatibility" --api="gl=3.3" --generator="c" --spec="gl" --extensions="GL_ARB_debug_output,GL_ARB_framebuffer_object,GL_EXT_framebuffer_blit,GL_EXT_framebuffer_multisample,GL_EXT_framebuffer_object"
     Online:
-        https://glad.dav1d.de/#profile=compatibility&language=c&specification=gl&loader=on&api=gl%3D3.3&extensions=GL_ARB_debug_output&extensions=GL_ARB_framebuffer_object&extensions=GL_EXT_framebuffer_object
+        https://glad.dav1d.de/#profile=compatibility&language=c&specification=gl&loader=on&api=gl%3D3.3&extensions=GL_ARB_debug_output&extensions=GL_ARB_framebuffer_object&extensions=GL_EXT_framebuffer_blit&extensions=GL_EXT_framebuffer_multisample&extensions=GL_EXT_framebuffer_object
 */
 
 #include <stdio.h>
@@ -992,11 +994,15 @@ PFNGLWINDOWPOS3SPROC glad_glWindowPos3s = NULL;
 PFNGLWINDOWPOS3SVPROC glad_glWindowPos3sv = NULL;
 int GLAD_GL_ARB_debug_output = 0;
 int GLAD_GL_ARB_framebuffer_object = 0;
+int GLAD_GL_EXT_framebuffer_blit = 0;
+int GLAD_GL_EXT_framebuffer_multisample = 0;
 int GLAD_GL_EXT_framebuffer_object = 0;
 PFNGLDEBUGMESSAGECONTROLARBPROC glad_glDebugMessageControlARB = NULL;
 PFNGLDEBUGMESSAGEINSERTARBPROC glad_glDebugMessageInsertARB = NULL;
 PFNGLDEBUGMESSAGECALLBACKARBPROC glad_glDebugMessageCallbackARB = NULL;
 PFNGLGETDEBUGMESSAGELOGARBPROC glad_glGetDebugMessageLogARB = NULL;
+PFNGLBLITFRAMEBUFFEREXTPROC glad_glBlitFramebufferEXT = NULL;
+PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glad_glRenderbufferStorageMultisampleEXT = NULL;
 PFNGLISRENDERBUFFEREXTPROC glad_glIsRenderbufferEXT = NULL;
 PFNGLBINDRENDERBUFFEREXTPROC glad_glBindRenderbufferEXT = NULL;
 PFNGLDELETERENDERBUFFERSEXTPROC glad_glDeleteRenderbuffersEXT = NULL;
@@ -1807,6 +1813,14 @@ static void load_GL_ARB_framebuffer_object(GLADloadproc load) {
 	glad_glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)load("glRenderbufferStorageMultisample");
 	glad_glFramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC)load("glFramebufferTextureLayer");
 }
+static void load_GL_EXT_framebuffer_blit(GLADloadproc load) {
+	if(!GLAD_GL_EXT_framebuffer_blit) return;
+	glad_glBlitFramebufferEXT = (PFNGLBLITFRAMEBUFFEREXTPROC)load("glBlitFramebufferEXT");
+}
+static void load_GL_EXT_framebuffer_multisample(GLADloadproc load) {
+	if(!GLAD_GL_EXT_framebuffer_multisample) return;
+	glad_glRenderbufferStorageMultisampleEXT = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)load("glRenderbufferStorageMultisampleEXT");
+}
 static void load_GL_EXT_framebuffer_object(GLADloadproc load) {
 	if(!GLAD_GL_EXT_framebuffer_object) return;
 	glad_glIsRenderbufferEXT = (PFNGLISRENDERBUFFEREXTPROC)load("glIsRenderbufferEXT");
@@ -1831,6 +1845,8 @@ static int find_extensionsGL(void) {
 	if (!get_exts()) return 0;
 	GLAD_GL_ARB_debug_output = has_ext("GL_ARB_debug_output");
 	GLAD_GL_ARB_framebuffer_object = has_ext("GL_ARB_framebuffer_object");
+	GLAD_GL_EXT_framebuffer_blit = has_ext("GL_EXT_framebuffer_blit");
+	GLAD_GL_EXT_framebuffer_multisample = has_ext("GL_EXT_framebuffer_multisample");
 	GLAD_GL_EXT_framebuffer_object = has_ext("GL_EXT_framebuffer_object");
 	free_exts();
 	return 1;
@@ -1912,6 +1928,8 @@ int gladLoadGLLoader(GLADloadproc load) {
 	if (!find_extensionsGL()) return 0;
 	load_GL_ARB_debug_output(load);
 	load_GL_ARB_framebuffer_object(load);
+	load_GL_EXT_framebuffer_blit(load);
+	load_GL_EXT_framebuffer_multisample(load);
 	load_GL_EXT_framebuffer_object(load);
 	return GLVersion.major != 0 || GLVersion.minor != 0;
 }
diff --git a/thirdparty/glad/glad/glad.h b/thirdparty/glad/glad/glad.h
index 6345de6f7a..b398faf627 100644
--- a/thirdparty/glad/glad/glad.h
+++ b/thirdparty/glad/glad/glad.h
@@ -1,6 +1,6 @@
 /*
 
-    OpenGL loader generated by glad 0.1.29 on Mon Mar  4 12:47:22 2019.
+    OpenGL loader generated by glad 0.1.29 on Wed May  1 23:16:34 2019.
 
     Language/Generator: C/C++
     Specification: gl
@@ -9,6 +9,8 @@
     Extensions:
         GL_ARB_debug_output,
         GL_ARB_framebuffer_object,
+        GL_EXT_framebuffer_blit,
+        GL_EXT_framebuffer_multisample,
         GL_EXT_framebuffer_object
     Loader: True
     Local files: False
@@ -16,9 +18,9 @@
     Reproducible: False
 
     Commandline:
-        --profile="compatibility" --api="gl=3.3" --generator="c" --spec="gl" --extensions="GL_ARB_debug_output,GL_ARB_framebuffer_object,GL_EXT_framebuffer_object"
+        --profile="compatibility" --api="gl=3.3" --generator="c" --spec="gl" --extensions="GL_ARB_debug_output,GL_ARB_framebuffer_object,GL_EXT_framebuffer_blit,GL_EXT_framebuffer_multisample,GL_EXT_framebuffer_object"
     Online:
-        https://glad.dav1d.de/#profile=compatibility&language=c&specification=gl&loader=on&api=gl%3D3.3&extensions=GL_ARB_debug_output&extensions=GL_ARB_framebuffer_object&extensions=GL_EXT_framebuffer_object
+        https://glad.dav1d.de/#profile=compatibility&language=c&specification=gl&loader=on&api=gl%3D3.3&extensions=GL_ARB_debug_output&extensions=GL_ARB_framebuffer_object&extensions=GL_EXT_framebuffer_blit&extensions=GL_EXT_framebuffer_multisample&extensions=GL_EXT_framebuffer_object
 */
 
 
@@ -3633,6 +3635,13 @@ GLAPI PFNGLSECONDARYCOLORP3UIVPROC glad_glSecondaryColorP3uiv;
 #define GL_DEBUG_SEVERITY_HIGH_ARB 0x9146
 #define GL_DEBUG_SEVERITY_MEDIUM_ARB 0x9147
 #define GL_DEBUG_SEVERITY_LOW_ARB 0x9148
+#define GL_READ_FRAMEBUFFER_EXT 0x8CA8
+#define GL_DRAW_FRAMEBUFFER_EXT 0x8CA9
+#define GL_DRAW_FRAMEBUFFER_BINDING_EXT 0x8CA6
+#define GL_READ_FRAMEBUFFER_BINDING_EXT 0x8CAA
+#define GL_RENDERBUFFER_SAMPLES_EXT 0x8CAB
+#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT 0x8D56
+#define GL_MAX_SAMPLES_EXT 0x8D57
 #define GL_INVALID_FRAMEBUFFER_OPERATION_EXT 0x0506
 #define GL_MAX_RENDERBUFFER_SIZE_EXT 0x84E8
 #define GL_FRAMEBUFFER_BINDING_EXT 0x8CA6
@@ -3704,6 +3713,20 @@ GLAPI PFNGLGETDEBUGMESSAGELOGARBPROC glad_glGetDebugMessageLogARB;
 #define GL_ARB_framebuffer_object 1
 GLAPI int GLAD_GL_ARB_framebuffer_object;
 #endif
+#ifndef GL_EXT_framebuffer_blit
+#define GL_EXT_framebuffer_blit 1
+GLAPI int GLAD_GL_EXT_framebuffer_blit;
+typedef void (APIENTRYP PFNGLBLITFRAMEBUFFEREXTPROC)(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+GLAPI PFNGLBLITFRAMEBUFFEREXTPROC glad_glBlitFramebufferEXT;
+#define glBlitFramebufferEXT glad_glBlitFramebufferEXT
+#endif
+#ifndef GL_EXT_framebuffer_multisample
+#define GL_EXT_framebuffer_multisample 1
+GLAPI int GLAD_GL_EXT_framebuffer_multisample;
+typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
+GLAPI PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glad_glRenderbufferStorageMultisampleEXT;
+#define glRenderbufferStorageMultisampleEXT glad_glRenderbufferStorageMultisampleEXT
+#endif
 #ifndef GL_EXT_framebuffer_object
 #define GL_EXT_framebuffer_object 1
 GLAPI int GLAD_GL_EXT_framebuffer_object;
diff --git a/thirdparty/libpng/LICENSE b/thirdparty/libpng/LICENSE
index 62ab8e48dc..e0c5b531cf 100644
--- a/thirdparty/libpng/LICENSE
+++ b/thirdparty/libpng/LICENSE
@@ -4,8 +4,8 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
 PNG Reference Library License version 2
 ---------------------------------------
 
- * Copyright (c) 1995-2018 The PNG Reference Library Authors.
- * Copyright (c) 2018 Cosmin Truta.
+ * Copyright (c) 1995-2019 The PNG Reference Library Authors.
+ * Copyright (c) 2018-2019 Cosmin Truta.
  * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  * Copyright (c) 1996-1997 Andreas Dilger.
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -13,7 +13,7 @@ PNG Reference Library License version 2
 The software is supplied "as is", without warranty of any kind,
 express or implied, including, without limitation, the warranties
 of merchantability, fitness for a particular purpose, title, and
-non-infringement.  In no even shall the Copyright owners, or
+non-infringement.  In no event shall the Copyright owners, or
 anyone distributing the software, be liable for any damages or
 other liability, whether in contract, tort or otherwise, arising
 from, out of, or in connection with the software, or the use or
@@ -39,7 +39,7 @@ subject to the following restrictions:
 PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
 -----------------------------------------------------------------------
 
-libpng versions 1.0.7, July 1, 2000 through 1.6.35, July 15, 2018 are
+libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
 Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, and are distributed according to the same
 disclaimer and license as libpng-1.0.6 with the following individuals
diff --git a/thirdparty/libpng/arm/palette_neon_intrinsics.c b/thirdparty/libpng/arm/palette_neon_intrinsics.c
index fa02d6a8b3..b4d1fd2abf 100644
--- a/thirdparty/libpng/arm/palette_neon_intrinsics.c
+++ b/thirdparty/libpng/arm/palette_neon_intrinsics.c
@@ -1,7 +1,7 @@
 
 /* palette_neon_intrinsics.c - NEON optimised palette expansion functions
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 2017-2018 Arm Holdings. All rights reserved.
  * Written by Richard Townsend <Richard.Townsend@arm.com>, February 2017.
  *
@@ -20,9 +20,9 @@
 #  include <arm_neon.h>
 #endif
 
-/* Build an RGBA palette from the RGB and separate alpha palettes. */
+/* Build an RGBA8 palette from the separate RGB and alpha palettes. */
 void
-png_riffle_palette_rgba(png_structrp png_ptr, png_row_infop row_info)
+png_riffle_palette_neon(png_structrp png_ptr)
 {
    png_const_colorp palette = png_ptr->palette;
    png_bytep riffled_palette = png_ptr->riffled_palette;
@@ -30,6 +30,8 @@ png_riffle_palette_rgba(png_structrp png_ptr, png_row_infop row_info)
    int num_trans = png_ptr->num_trans;
    int i;
 
+   png_debug(1, "in png_riffle_palette_neon");
+
    /* Initially black, opaque. */
    uint8x16x4_t w = {{
       vdupq_n_u8(0x00),
@@ -38,16 +40,10 @@ png_riffle_palette_rgba(png_structrp png_ptr, png_row_infop row_info)
       vdupq_n_u8(0xff),
    }};
 
-   if (row_info->bit_depth != 8)
-   {
-      png_error(png_ptr, "bit_depth must be 8 for png_riffle_palette_rgba");
-      return;
-   }
-
-   /* First, riffle the RGB colours into a RGBA palette, the A value is
-    * set to opaque for now.
+   /* First, riffle the RGB colours into an RGBA8 palette.
+    * The alpha component is set to opaque for now.
     */
-   for (i = 0; i < (1 << row_info->bit_depth); i += 16)
+   for (i = 0; i < 256; i += 16)
    {
       uint8x16x3_t v = vld3q_u8((png_const_bytep)(palette + i));
       w.val[0] = v.val[0];
@@ -61,9 +57,9 @@ png_riffle_palette_rgba(png_structrp png_ptr, png_row_infop row_info)
       riffled_palette[(i << 2) + 3] = trans_alpha[i];
 }
 
-/* Expands a palettized row into RGBA. */
+/* Expands a palettized row into RGBA8. */
 int
-png_do_expand_palette_neon_rgba(png_structrp png_ptr, png_row_infop row_info,
+png_do_expand_palette_rgba8_neon(png_structrp png_ptr, png_row_infop row_info,
     png_const_bytep row, png_bytepp ssp, png_bytepp ddp)
 {
    png_uint_32 row_width = row_info->width;
@@ -72,6 +68,8 @@ png_do_expand_palette_neon_rgba(png_structrp png_ptr, png_row_infop row_info,
    const png_int_32 pixels_per_chunk = 4;
    int i;
 
+   png_debug(1, "in png_do_expand_palette_rgba8_neon");
+
    if (row_width < pixels_per_chunk)
       return 0;
 
@@ -103,9 +101,9 @@ png_do_expand_palette_neon_rgba(png_structrp png_ptr, png_row_infop row_info,
    return i;
 }
 
-/* Expands a palettized row into RGB format. */
+/* Expands a palettized row into RGB8. */
 int
-png_do_expand_palette_neon_rgb(png_structrp png_ptr, png_row_infop row_info,
+png_do_expand_palette_rgb8_neon(png_structrp png_ptr, png_row_infop row_info,
     png_const_bytep row, png_bytepp ssp, png_bytepp ddp)
 {
    png_uint_32 row_width = row_info->width;
@@ -113,6 +111,8 @@ png_do_expand_palette_neon_rgb(png_structrp png_ptr, png_row_infop row_info,
    const png_uint_32 pixels_per_chunk = 8;
    int i;
 
+   png_debug(1, "in png_do_expand_palette_rgb8_neon");
+
    if (row_width <= pixels_per_chunk)
       return 0;
 
diff --git a/thirdparty/libpng/png.c b/thirdparty/libpng/png.c
index 3dce191d17..757c755f97 100644
--- a/thirdparty/libpng/png.c
+++ b/thirdparty/libpng/png.c
@@ -1,7 +1,7 @@
 
 /* png.c - location for general purpose libpng functions
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -14,7 +14,7 @@
 #include "pngpriv.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_6_36 Your_png_h_is_not_version_1_6_36;
+typedef png_libpng_version_1_6_37 Your_png_h_is_not_version_1_6_37;
 
 #ifdef __GNUC__
 /* The version tests may need to be added to, but the problem warning has
@@ -815,8 +815,8 @@ png_get_copyright(png_const_structrp png_ptr)
    return PNG_STRING_COPYRIGHT
 #else
    return PNG_STRING_NEWLINE \
-      "libpng version 1.6.36" PNG_STRING_NEWLINE \
-      "Copyright (c) 2018 Cosmin Truta" PNG_STRING_NEWLINE \
+      "libpng version 1.6.37" PNG_STRING_NEWLINE \
+      "Copyright (c) 2018-2019 Cosmin Truta" PNG_STRING_NEWLINE \
       "Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson" \
       PNG_STRING_NEWLINE \
       "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
@@ -4588,8 +4588,7 @@ png_image_free(png_imagep image)
    if (image != NULL && image->opaque != NULL &&
       image->opaque->error_buf == NULL)
    {
-      /* Ignore errors here: */
-      (void)png_safe_execute(image, png_image_free_function, image);
+      png_image_free_function(image);
       image->opaque = NULL;
    }
 }
diff --git a/thirdparty/libpng/png.h b/thirdparty/libpng/png.h
index 8e272a0553..b12174ba35 100644
--- a/thirdparty/libpng/png.h
+++ b/thirdparty/libpng/png.h
@@ -1,9 +1,9 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.36 - December 1, 2018
+ * libpng version 1.6.37 - April 14, 2019
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -14,8 +14,9 @@
  *   libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *   libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
  *   libpng versions 0.97, January 1998, through 1.6.35, July 2018:
- *     Glenn Randers-Pehrson.
- *   libpng version 1.6.36, December 1, 2018: Cosmin Truta
+ *     Glenn Randers-Pehrson
+ *   libpng versions 1.6.36, December 2018, through 1.6.37, April 2019:
+ *     Cosmin Truta
  *   See also "Contributing Authors", below.
  */
 
@@ -26,8 +27,8 @@
  * PNG Reference Library License version 2
  * ---------------------------------------
  *
- *  * Copyright (c) 1995-2018 The PNG Reference Library Authors.
- *  * Copyright (c) 2018 Cosmin Truta.
+ *  * Copyright (c) 1995-2019 The PNG Reference Library Authors.
+ *  * Copyright (c) 2018-2019 Cosmin Truta.
  *  * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
  *  * Copyright (c) 1996-1997 Andreas Dilger.
  *  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -35,7 +36,7 @@
  * The software is supplied "as is", without warranty of any kind,
  * express or implied, including, without limitation, the warranties
  * of merchantability, fitness for a particular purpose, title, and
- * non-infringement.  In no even shall the Copyright owners, or
+ * non-infringement.  In no event shall the Copyright owners, or
  * anyone distributing the software, be liable for any damages or
  * other liability, whether in contract, tort or otherwise, arising
  * from, out of, or in connection with the software, or the use or
@@ -61,7 +62,7 @@
  * PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
  * -----------------------------------------------------------------------
  *
- * libpng versions 1.0.7, July 1, 2000 through 1.6.35, July 15, 2018 are
+ * libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
  * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
  * derived from libpng-1.0.6, and are distributed according to the same
  * disclaimer and license as libpng-1.0.6 with the following individuals
@@ -238,7 +239,7 @@
  *    ...
  *    1.5.30                  15    10530  15.so.15.30[.0]
  *    ...
- *    1.6.36                  16    10636  16.so.16.36[.0]
+ *    1.6.37                  16    10637  16.so.16.37[.0]
  *
  *    Henceforth the source version will match the shared-library major and
  *    minor numbers; the shared-library major version number will be used for
@@ -277,8 +278,8 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.6.36"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.36 - December 1, 2018\n"
+#define PNG_LIBPNG_VER_STRING "1.6.37"
+#define PNG_HEADER_VERSION_STRING " libpng version 1.6.37 - April 14, 2019\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
@@ -286,12 +287,11 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   6
-#define PNG_LIBPNG_VER_RELEASE 36
+#define PNG_LIBPNG_VER_RELEASE 37
 
-/* This should match the numeric part of the final component of
- * PNG_LIBPNG_VER_STRING, omitting any leading zero:
+/* This should be zero for a public release, or non-zero for a
+ * development version.  [Deprecated]
  */
-
 #define PNG_LIBPNG_VER_BUILD  0
 
 /* Release Status */
@@ -318,7 +318,7 @@
  * From version 1.0.1 it is:
  * XXYYZZ, where XX=major, YY=minor, ZZ=release
  */
-#define PNG_LIBPNG_VER 10636 /* 1.6.36 */
+#define PNG_LIBPNG_VER 10637 /* 1.6.37 */
 
 /* Library configuration: these options cannot be changed after
  * the library has been built.
@@ -330,6 +330,10 @@
 #   include "pnglibconf.h"
 #endif
 
+#define PNG_APNG_SUPPORTED
+#define PNG_READ_APNG_SUPPORTED
+#define PNG_WRITE_APNG_SUPPORTED
+
 #ifndef PNG_VERSION_INFO_ONLY
 /* Machine specific configuration. */
 #  include "pngconf.h"
@@ -425,10 +429,21 @@ extern "C" {
  * See pngconf.h for base types that vary by machine/system
  */
 
+#ifdef PNG_APNG_SUPPORTED
+/* dispose_op flags from inside fcTL */
+#define PNG_DISPOSE_OP_NONE        0x00U
+#define PNG_DISPOSE_OP_BACKGROUND  0x01U
+#define PNG_DISPOSE_OP_PREVIOUS    0x02U
+
+/* blend_op flags from inside fcTL */
+#define PNG_BLEND_OP_SOURCE        0x00U
+#define PNG_BLEND_OP_OVER          0x01U
+#endif /* PNG_APNG_SUPPORTED */
+
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef char* png_libpng_version_1_6_36;
+typedef char* png_libpng_version_1_6_37;
 
 /* Basic control structions.  Read libpng-manual.txt or libpng.3 for more info.
  *
@@ -746,6 +761,10 @@ typedef png_unknown_chunk * * png_unknown_chunkpp;
 #define PNG_INFO_sCAL 0x4000U  /* ESR, 1.0.6 */
 #define PNG_INFO_IDAT 0x8000U  /* ESR, 1.0.6 */
 #define PNG_INFO_eXIf 0x10000U /* GR-P, 1.6.31 */
+#ifdef PNG_APNG_SUPPORTED
+#define PNG_INFO_acTL 0x20000U
+#define PNG_INFO_fcTL 0x40000U
+#endif
 
 /* This is used for the transformation routines, as some of them
  * change these values for the row.  It also should enable using
@@ -783,6 +802,10 @@ typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32,
 #ifdef PNG_PROGRESSIVE_READ_SUPPORTED
 typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop));
 typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop));
+#ifdef PNG_APNG_SUPPORTED
+typedef PNG_CALLBACK(void, *png_progressive_frame_ptr, (png_structp,
+    png_uint_32));
+#endif
 
 /* The following callback receives png_uint_32 row_number, int pass for the
  * png_bytep data of the row.  When transforming an interlaced image the
@@ -3226,6 +3249,74 @@ PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option,
 /*******************************************************************************
  *  END OF HARDWARE AND SOFTWARE OPTIONS
  ******************************************************************************/
+#ifdef PNG_APNG_SUPPORTED
+PNG_EXPORT(250, png_uint_32, png_get_acTL, (png_structp png_ptr,
+   png_infop info_ptr, png_uint_32 *num_frames, png_uint_32 *num_plays));
+
+PNG_EXPORT(251, png_uint_32, png_set_acTL, (png_structp png_ptr,
+   png_infop info_ptr, png_uint_32 num_frames, png_uint_32 num_plays));
+
+PNG_EXPORT(252, png_uint_32, png_get_num_frames, (png_structp png_ptr,
+   png_infop info_ptr));
+
+PNG_EXPORT(253, png_uint_32, png_get_num_plays, (png_structp png_ptr,
+   png_infop info_ptr));
+
+PNG_EXPORT(254, png_uint_32, png_get_next_frame_fcTL,
+   (png_structp png_ptr, png_infop info_ptr, png_uint_32 *width,
+   png_uint_32 *height, png_uint_32 *x_offset, png_uint_32 *y_offset,
+   png_uint_16 *delay_num, png_uint_16 *delay_den, png_byte *dispose_op,
+   png_byte *blend_op));
+
+PNG_EXPORT(255, png_uint_32, png_set_next_frame_fcTL,
+   (png_structp png_ptr, png_infop info_ptr, png_uint_32 width,
+   png_uint_32 height, png_uint_32 x_offset, png_uint_32 y_offset,
+   png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op,
+   png_byte blend_op));
+
+PNG_EXPORT(256, png_uint_32, png_get_next_frame_width,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(257, png_uint_32, png_get_next_frame_height,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(258, png_uint_32, png_get_next_frame_x_offset,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(259, png_uint_32, png_get_next_frame_y_offset,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(260, png_uint_16, png_get_next_frame_delay_num,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(261, png_uint_16, png_get_next_frame_delay_den,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(262, png_byte, png_get_next_frame_dispose_op,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(263, png_byte, png_get_next_frame_blend_op,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(264, png_byte, png_get_first_frame_is_hidden,
+   (png_structp png_ptr, png_infop info_ptr));
+PNG_EXPORT(265, png_uint_32, png_set_first_frame_is_hidden,
+   (png_structp png_ptr, png_infop info_ptr, png_byte is_hidden));
+
+#ifdef PNG_READ_APNG_SUPPORTED
+PNG_EXPORT(266, void, png_read_frame_head, (png_structp png_ptr,
+   png_infop info_ptr));
+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+PNG_EXPORT(267, void, png_set_progressive_frame_fn, (png_structp png_ptr,
+   png_progressive_frame_ptr frame_info_fn,
+   png_progressive_frame_ptr frame_end_fn));
+#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PNG_READ_APNG_SUPPORTED */
+
+#ifdef PNG_WRITE_APNG_SUPPORTED
+PNG_EXPORT(268, void, png_write_frame_head, (png_structp png_ptr,
+   png_infop info_ptr, png_bytepp row_pointers,
+   png_uint_32 width, png_uint_32 height,
+   png_uint_32 x_offset, png_uint_32 y_offset,
+   png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op,
+   png_byte blend_op));
+
+PNG_EXPORT(269, void, png_write_frame_tail, (png_structp png_ptr,
+   png_infop info_ptr));
+#endif /* PNG_WRITE_APNG_SUPPORTED */
+#endif /* PNG_APNG_SUPPORTED */
 
 /* Maintainer: Put new public prototypes here ^, in libpng.3, in project
  * defs, and in scripts/symbols.def.
@@ -3235,7 +3326,11 @@ PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option,
  * one to use is one more than this.)
  */
 #ifdef PNG_EXPORT_LAST_ORDINAL
+#ifdef PNG_APNG_SUPPORTED
+  PNG_EXPORT_LAST_ORDINAL(269);
+#else
   PNG_EXPORT_LAST_ORDINAL(249);
+#endif /* PNG_APNG_SUPPORTED */
 #endif
 
 #ifdef __cplusplus
diff --git a/thirdparty/libpng/pngconf.h b/thirdparty/libpng/pngconf.h
index 5e641b2509..927a769dbe 100644
--- a/thirdparty/libpng/pngconf.h
+++ b/thirdparty/libpng/pngconf.h
@@ -1,9 +1,9 @@
 
-/* pngconf.h - machine configurable file for libpng
+/* pngconf.h - machine-configurable file for libpng
  *
- * libpng version 1.6.36
+ * libpng version 1.6.37
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2016,2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
diff --git a/thirdparty/libpng/pngget.c b/thirdparty/libpng/pngget.c
index 5abf1efd9f..9ed101aedc 100644
--- a/thirdparty/libpng/pngget.c
+++ b/thirdparty/libpng/pngget.c
@@ -1246,4 +1246,166 @@ png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr)
 #  endif
 #endif
 
+#ifdef PNG_APNG_SUPPORTED
+png_uint_32 PNGAPI
+png_get_acTL(png_structp png_ptr, png_infop info_ptr,
+             png_uint_32 *num_frames, png_uint_32 *num_plays)
+{
+    png_debug1(1, "in %s retrieval function", "acTL");
+
+    if (png_ptr != NULL && info_ptr != NULL &&
+        (info_ptr->valid & PNG_INFO_acTL) &&
+        num_frames != NULL && num_plays != NULL)
+    {
+        *num_frames = info_ptr->num_frames;
+        *num_plays = info_ptr->num_plays;
+        return (1);
+    }
+
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_num_frames(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_num_frames()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->num_frames);
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_num_plays(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_num_plays()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->num_plays);
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_next_frame_fcTL(png_structp png_ptr, png_infop info_ptr,
+             png_uint_32 *width, png_uint_32 *height,
+             png_uint_32 *x_offset, png_uint_32 *y_offset,
+             png_uint_16 *delay_num, png_uint_16 *delay_den,
+             png_byte *dispose_op, png_byte *blend_op)
+{
+    png_debug1(1, "in %s retrieval function", "fcTL");
+
+    if (png_ptr != NULL && info_ptr != NULL &&
+        (info_ptr->valid & PNG_INFO_fcTL) &&
+        width != NULL && height != NULL &&
+        x_offset != NULL && y_offset != NULL &&
+        delay_num != NULL && delay_den != NULL &&
+        dispose_op != NULL && blend_op != NULL)
+    {
+        *width = info_ptr->next_frame_width;
+        *height = info_ptr->next_frame_height;
+        *x_offset = info_ptr->next_frame_x_offset;
+        *y_offset = info_ptr->next_frame_y_offset;
+        *delay_num = info_ptr->next_frame_delay_num;
+        *delay_den = info_ptr->next_frame_delay_den;
+        *dispose_op = info_ptr->next_frame_dispose_op;
+        *blend_op = info_ptr->next_frame_blend_op;
+        return (1);
+    }
+
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_next_frame_width(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_width()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_width);
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_next_frame_height(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_height()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_height);
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_next_frame_x_offset(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_x_offset()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_x_offset);
+    return (0);
+}
+
+png_uint_32 PNGAPI
+png_get_next_frame_y_offset(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_y_offset()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_y_offset);
+    return (0);
+}
+
+png_uint_16 PNGAPI
+png_get_next_frame_delay_num(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_delay_num()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_delay_num);
+    return (0);
+}
+
+png_uint_16 PNGAPI
+png_get_next_frame_delay_den(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_delay_den()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_delay_den);
+    return (0);
+}
+
+png_byte PNGAPI
+png_get_next_frame_dispose_op(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_dispose_op()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_dispose_op);
+    return (0);
+}
+
+png_byte PNGAPI
+png_get_next_frame_blend_op(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_get_next_frame_blend_op()");
+
+    if (png_ptr != NULL && info_ptr != NULL)
+        return (info_ptr->next_frame_blend_op);
+    return (0);
+}
+
+png_byte PNGAPI
+png_get_first_frame_is_hidden(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_first_frame_is_hidden()");
+
+    if (png_ptr != NULL)
+       return (png_byte)(png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN);
+
+    PNG_UNUSED(info_ptr)
+
+    return 0;
+}
+#endif /* PNG_APNG_SUPPORTED */
 #endif /* READ || WRITE */
diff --git a/thirdparty/libpng/pnginfo.h b/thirdparty/libpng/pnginfo.h
index 1f98dedc42..ac7b269132 100644
--- a/thirdparty/libpng/pnginfo.h
+++ b/thirdparty/libpng/pnginfo.h
@@ -263,5 +263,18 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
    png_bytepp row_pointers;        /* the image bits */
 #endif
 
+#ifdef PNG_APNG_SUPPORTED
+   png_uint_32 num_frames; /* including default image */
+   png_uint_32 num_plays;
+   png_uint_32 next_frame_width;
+   png_uint_32 next_frame_height;
+   png_uint_32 next_frame_x_offset;
+   png_uint_32 next_frame_y_offset;
+   png_uint_16 next_frame_delay_num;
+   png_uint_16 next_frame_delay_den;
+   png_byte next_frame_dispose_op;
+   png_byte next_frame_blend_op;
+#endif
+
 };
 #endif /* PNGINFO_H */
diff --git a/thirdparty/libpng/pnglibconf.h b/thirdparty/libpng/pnglibconf.h
index 00340c678b..e1e27e957e 100644
--- a/thirdparty/libpng/pnglibconf.h
+++ b/thirdparty/libpng/pnglibconf.h
@@ -1,8 +1,8 @@
 /* pnglibconf.h - library build configuration */
 
-/* libpng version 1.6.36 */
+/* libpng version 1.6.37 */
 
-/* Copyright (c) 2018 Cosmin Truta */
+/* Copyright (c) 2018-2019 Cosmin Truta */
 /* Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson */
 
 /* This code is released under the libpng license. */
diff --git a/thirdparty/libpng/pngpread.c b/thirdparty/libpng/pngpread.c
index e283627b77..2eaeca08f7 100644
--- a/thirdparty/libpng/pngpread.c
+++ b/thirdparty/libpng/pngpread.c
@@ -195,6 +195,106 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
 
    chunk_name = png_ptr->chunk_name;
 
+#ifdef PNG_READ_APNG_SUPPORTED
+   if (png_ptr->num_frames_read > 0 &&
+       png_ptr->num_frames_read < info_ptr->num_frames)
+   {
+      if (chunk_name == png_IDAT)
+      {
+         /* Discard trailing IDATs for the first frame */
+         if (png_ptr->mode & PNG_HAVE_fcTL || png_ptr->num_frames_read > 1)
+            png_error(png_ptr, "out of place IDAT");
+
+         if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+         {
+            png_push_save_buffer(png_ptr);
+            return;
+         }
+
+         png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
+         return;
+      }
+      else if (chunk_name == png_fdAT)
+      {
+         if (png_ptr->buffer_size < 4)
+         {
+            png_push_save_buffer(png_ptr);
+            return;
+         }
+
+         png_ensure_sequence_number(png_ptr, 4);
+
+         if (!(png_ptr->mode & PNG_HAVE_fcTL))
+         {
+            /* Discard trailing fdATs for frames other than the first */
+            if (png_ptr->num_frames_read < 2)
+               png_error(png_ptr, "out of place fdAT");
+
+            if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+            {
+               png_push_save_buffer(png_ptr);
+               return;
+            }
+
+            png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
+            return;
+         }
+
+         else
+         {
+            /* frame data follows */
+            png_ptr->idat_size = png_ptr->push_length - 4;
+            png_ptr->mode |= PNG_HAVE_IDAT;
+            png_ptr->process_mode = PNG_READ_IDAT_MODE;
+
+            return;
+         }
+      }
+
+      else if (chunk_name == png_fcTL)
+      {
+         if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+         {
+            png_push_save_buffer(png_ptr);
+            return;
+         }
+
+         png_read_reset(png_ptr);
+         png_ptr->mode &= ~PNG_HAVE_fcTL;
+
+         png_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length);
+
+         if (!(png_ptr->mode & PNG_HAVE_fcTL))
+            png_error(png_ptr, "missing required fcTL chunk");
+
+         png_read_reinit(png_ptr, info_ptr);
+         png_progressive_read_reset(png_ptr);
+
+         if (png_ptr->frame_info_fn != NULL)
+            (*(png_ptr->frame_info_fn))(png_ptr, png_ptr->num_frames_read);
+
+         png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
+
+         return;
+      }
+
+      else
+      {
+         if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+         {
+            png_push_save_buffer(png_ptr);
+            return;
+         }
+         png_warning(png_ptr, "Skipped (ignored) a chunk "
+                              "between APNG chunks");
+         png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
+         return;
+      }
+
+      return;
+   }
+#endif /* PNG_READ_APNG_SUPPORTED */
+
    if (chunk_name == png_IDAT)
    {
       if ((png_ptr->mode & PNG_AFTER_IDAT) != 0)
@@ -261,6 +361,9 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
 
    else if (chunk_name == png_IDAT)
    {
+#ifdef PNG_READ_APNG_SUPPORTED
+      png_have_info(png_ptr, info_ptr);
+#endif
       png_ptr->idat_size = png_ptr->push_length;
       png_ptr->process_mode = PNG_READ_IDAT_MODE;
       png_push_have_info(png_ptr, info_ptr);
@@ -406,6 +509,30 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr)
       png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length);
    }
 #endif
+#ifdef PNG_READ_APNG_SUPPORTED
+   else if (chunk_name == png_acTL)
+   {
+      if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+      {
+         png_push_save_buffer(png_ptr);
+         return;
+      }
+
+      png_handle_acTL(png_ptr, info_ptr, png_ptr->push_length);
+   }
+
+   else if (chunk_name == png_fcTL)
+   {
+      if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+      {
+         png_push_save_buffer(png_ptr);
+         return;
+      }
+
+      png_handle_fcTL(png_ptr, info_ptr, png_ptr->push_length);
+   }
+
+#endif /* PNG_READ_APNG_SUPPORTED */
 
    else
    {
@@ -539,7 +666,11 @@ png_push_read_IDAT(png_structrp png_ptr)
       png_byte chunk_tag[4];
 
       /* TODO: this code can be commoned up with the same code in push_read */
+#ifdef PNG_READ_APNG_SUPPORTED
+      PNG_PUSH_SAVE_BUFFER_IF_LT(12)
+#else
       PNG_PUSH_SAVE_BUFFER_IF_LT(8)
+#endif
       png_push_fill_buffer(png_ptr, chunk_length, 4);
       png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
       png_reset_crc(png_ptr);
@@ -547,17 +678,64 @@ png_push_read_IDAT(png_structrp png_ptr)
       png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag);
       png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
 
+#ifdef PNG_READ_APNG_SUPPORTED
+      if (png_ptr->chunk_name != png_fdAT && png_ptr->num_frames_read > 0)
+      {
+          if (png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)
+          {
+              png_ptr->process_mode = PNG_READ_CHUNK_MODE;
+              if (png_ptr->frame_end_fn != NULL)
+                 (*(png_ptr->frame_end_fn))(png_ptr, png_ptr->num_frames_read);
+              png_ptr->num_frames_read++;
+              return;
+          }
+          else
+          {
+              if (png_ptr->chunk_name == png_IEND)
+                  png_error(png_ptr, "Not enough image data");
+              if (png_ptr->push_length + 4 > png_ptr->buffer_size)
+              {
+                 png_push_save_buffer(png_ptr);
+                 return;
+              }
+              png_warning(png_ptr, "Skipping (ignoring) a chunk between "
+                                   "APNG chunks");
+              png_crc_finish(png_ptr, png_ptr->push_length);
+              png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
+              return;
+          }
+      }
+      else
+#endif
+#ifdef PNG_READ_APNG_SUPPORTED
+      if (png_ptr->chunk_name != png_IDAT && png_ptr->num_frames_read == 0)
+#else
       if (png_ptr->chunk_name != png_IDAT)
+#endif
       {
          png_ptr->process_mode = PNG_READ_CHUNK_MODE;
 
          if ((png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
             png_error(png_ptr, "Not enough compressed data");
 
+#ifdef PNG_READ_APNG_SUPPORTED
+         if (png_ptr->frame_end_fn != NULL)
+            (*(png_ptr->frame_end_fn))(png_ptr, png_ptr->num_frames_read);
+         png_ptr->num_frames_read++;
+#endif
+
          return;
       }
 
       png_ptr->idat_size = png_ptr->push_length;
+
+#ifdef PNG_READ_APNG_SUPPORTED
+      if (png_ptr->num_frames_read > 0)
+      {
+         png_ensure_sequence_number(png_ptr, 4);
+         png_ptr->idat_size -= 4;
+      }
+#endif
    }
 
    if (png_ptr->idat_size != 0 && png_ptr->save_buffer_size != 0)
@@ -631,6 +809,15 @@ png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer,
    if (!(buffer_length > 0) || buffer == NULL)
       png_error(png_ptr, "No IDAT data (internal error)");
 
+#ifdef PNG_READ_APNG_SUPPORTED
+   /* If the app is not APNG-aware, decode only the first frame */
+   if (!(png_ptr->apng_flags & PNG_APNG_APP) && png_ptr->num_frames_read > 0)
+   {
+     png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
+     return;
+   }
+#endif
+
    /* This routine must process all the data it has been given
     * before returning, calling the row callback as required to
     * handle the uncompressed results.
@@ -1085,6 +1272,18 @@ png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr,
    png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer);
 }
 
+#ifdef PNG_READ_APNG_SUPPORTED
+void PNGAPI
+png_set_progressive_frame_fn(png_structp png_ptr,
+   png_progressive_frame_ptr frame_info_fn,
+   png_progressive_frame_ptr frame_end_fn)
+{
+   png_ptr->frame_info_fn = frame_info_fn;
+   png_ptr->frame_end_fn = frame_end_fn;
+   png_ptr->apng_flags |= PNG_APNG_APP;
+}
+#endif
+
 png_voidp PNGAPI
 png_get_progressive_ptr(png_const_structrp png_ptr)
 {
diff --git a/thirdparty/libpng/pngpriv.h b/thirdparty/libpng/pngpriv.h
index 973c3eac1f..57e1bf989b 100644
--- a/thirdparty/libpng/pngpriv.h
+++ b/thirdparty/libpng/pngpriv.h
@@ -1,7 +1,7 @@
 
 /* pngpriv.h - private declarations for use inside libpng
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -637,6 +637,10 @@
 #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
                    /*             0x4000U (unused) */
 #define PNG_IS_READ_STRUCT        0x8000U /* Else is a write struct */
+#ifdef PNG_APNG_SUPPORTED
+#define PNG_HAVE_acTL            0x10000U
+#define PNG_HAVE_fcTL            0x20000U
+#endif
 
 /* Flags for the transformations the PNG library does on the image data */
 #define PNG_BGR                 0x0001U
@@ -873,6 +877,16 @@
 #define png_tRNS PNG_U32(116,  82,  78,  83)
 #define png_zTXt PNG_U32(122,  84,  88, 116)
 
+#ifdef PNG_APNG_SUPPORTED
+#define png_acTL PNG_U32( 97,  99,  84,  76)
+#define png_fcTL PNG_U32(102,  99,  84,  76)
+#define png_fdAT PNG_U32(102, 100,  65,  84)
+
+/* For png_struct.apng_flags: */
+#define PNG_FIRST_FRAME_HIDDEN       0x0001U
+#define PNG_APNG_APP                 0x0002U
+#endif
+
 /* The following will work on (signed char*) strings, whereas the get_uint_32
  * macro will fail on top-bit-set values because of the sign extension.
  */
@@ -1644,6 +1658,47 @@ PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr,
     */
 #endif
 
+#ifdef PNG_APNG_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_ensure_fcTL_is_valid,(png_structp png_ptr,
+   png_uint_32 width, png_uint_32 height,
+   png_uint_32 x_offset, png_uint_32 y_offset,
+   png_uint_16 delay_num, png_uint_16 delay_den,
+   png_byte dispose_op, png_byte blend_op), PNG_EMPTY);
+
+#ifdef PNG_READ_APNG_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_handle_acTL,(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_handle_fcTL,(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_handle_fdAT,(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_have_info,(png_structp png_ptr, png_infop info_ptr),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_ensure_sequence_number,(png_structp png_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_reset,(png_structp png_ptr),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_reinit,(png_structp png_ptr,
+   png_infop info_ptr),PNG_EMPTY);
+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_progressive_read_reset,(png_structp png_ptr),PNG_EMPTY);
+#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PNG_READ_APNG_SUPPORTED */
+
+#ifdef PNG_WRITE_APNG_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_write_acTL,(png_structp png_ptr,
+   png_uint_32 num_frames, png_uint_32 num_plays),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_fcTL,(png_structp png_ptr,
+   png_uint_32 width, png_uint_32 height,
+   png_uint_32 x_offset, png_uint_32 y_offset,
+   png_uint_16 delay_num, png_uint_16 delay_den,
+   png_byte dispose_op, png_byte blend_op),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_fdAT,(png_structp png_ptr,
+   png_const_bytep data, png_size_t length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_reset,(png_structp png_ptr),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_reinit,(png_structp png_ptr,
+   png_infop info_ptr, png_uint_32 width, png_uint_32 height),PNG_EMPTY);
+#endif /* PNG_WRITE_APNG_SUPPORTED */
+#endif /* PNG_APNG_SUPPORTED */
+
 /* Added at libpng version 1.4.0 */
 #ifdef PNG_COLORSPACE_SUPPORTED
 /* These internal functions are for maintaining the colorspace structure within
@@ -2119,11 +2174,11 @@ PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
 
 #if PNG_ARM_NEON_IMPLEMENTATION == 1
 PNG_INTERNAL_FUNCTION(void,
-                      png_riffle_palette_rgba,
-                      (png_structrp, png_row_infop),
+                      png_riffle_palette_neon,
+                      (png_structrp),
                       PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(int,
-                      png_do_expand_palette_neon_rgba,
+                      png_do_expand_palette_rgba8_neon,
                       (png_structrp,
                        png_row_infop,
                        png_const_bytep,
@@ -2131,7 +2186,7 @@ PNG_INTERNAL_FUNCTION(int,
                        const png_bytepp),
                       PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(int,
-                      png_do_expand_palette_neon_rgb,
+                      png_do_expand_palette_rgb8_neon,
                       (png_structrp,
                        png_row_infop,
                        png_const_bytep,
diff --git a/thirdparty/libpng/pngread.c b/thirdparty/libpng/pngread.c
index f8e762196e..fa44d5a8e4 100644
--- a/thirdparty/libpng/pngread.c
+++ b/thirdparty/libpng/pngread.c
@@ -1,7 +1,7 @@
 
 /* pngread.c - read a PNG file
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -161,6 +161,9 @@ png_read_info(png_structrp png_ptr, png_inforp info_ptr)
 
       else if (chunk_name == png_IDAT)
       {
+#ifdef PNG_READ_APNG_SUPPORTED
+         png_have_info(png_ptr, info_ptr);
+#endif
          png_ptr->idat_size = length;
          break;
       }
@@ -255,6 +258,17 @@ png_read_info(png_structrp png_ptr, png_inforp info_ptr)
          png_handle_iTXt(png_ptr, info_ptr, length);
 #endif
 
+#ifdef PNG_READ_APNG_SUPPORTED
+      else if (chunk_name == png_acTL)
+         png_handle_acTL(png_ptr, info_ptr, length);
+
+      else if (chunk_name == png_fcTL)
+         png_handle_fcTL(png_ptr, info_ptr, length);
+
+      else if (chunk_name == png_fdAT)
+         png_handle_fdAT(png_ptr, info_ptr, length);
+#endif
+
       else
          png_handle_unknown(png_ptr, info_ptr, length,
              PNG_HANDLE_CHUNK_AS_DEFAULT);
@@ -262,6 +276,72 @@ png_read_info(png_structrp png_ptr, png_inforp info_ptr)
 }
 #endif /* SEQUENTIAL_READ */
 
+#ifdef PNG_READ_APNG_SUPPORTED
+void PNGAPI
+png_read_frame_head(png_structp png_ptr, png_infop info_ptr)
+{
+    png_byte have_chunk_after_DAT; /* after IDAT or after fdAT */
+
+    png_debug(0, "Reading frame head");
+
+    if (!(png_ptr->mode & PNG_HAVE_acTL))
+        png_error(png_ptr, "attempt to png_read_frame_head() but "
+                           "no acTL present");
+
+    /* do nothing for the main IDAT */
+    if (png_ptr->num_frames_read == 0)
+        return;
+
+    png_read_reset(png_ptr);
+    png_ptr->flags &= ~PNG_FLAG_ROW_INIT;
+    png_ptr->mode &= ~PNG_HAVE_fcTL;
+
+    have_chunk_after_DAT = 0;
+    for (;;)
+    {
+        png_uint_32 length = png_read_chunk_header(png_ptr);
+
+        if (png_ptr->chunk_name == png_IDAT)
+        {
+            /* discard trailing IDATs for the first frame */
+            if (have_chunk_after_DAT || png_ptr->num_frames_read > 1)
+                png_error(png_ptr, "png_read_frame_head(): out of place IDAT");
+            png_crc_finish(png_ptr, length);
+        }
+
+        else if (png_ptr->chunk_name == png_fcTL)
+        {
+            png_handle_fcTL(png_ptr, info_ptr, length);
+            have_chunk_after_DAT = 1;
+        }
+
+        else if (png_ptr->chunk_name == png_fdAT)
+        {
+            png_ensure_sequence_number(png_ptr, length);
+
+            /* discard trailing fdATs for frames other than the first */
+            if (!have_chunk_after_DAT && png_ptr->num_frames_read > 1)
+                png_crc_finish(png_ptr, length - 4);
+            else if(png_ptr->mode & PNG_HAVE_fcTL)
+            {
+                png_ptr->idat_size = length - 4;
+                png_ptr->mode |= PNG_HAVE_IDAT;
+
+                break;
+            }
+            else
+                png_error(png_ptr, "png_read_frame_head(): out of place fdAT");
+        }
+        else
+        {
+            png_warning(png_ptr, "Skipped (ignored) a chunk "
+                                 "between APNG chunks");
+            png_crc_finish(png_ptr, length);
+        }
+    }
+}
+#endif /* PNG_READ_APNG_SUPPORTED */
+
 /* Optional call to update the users info_ptr structure */
 void PNGAPI
 png_read_update_info(png_structrp png_ptr, png_inforp info_ptr)
@@ -994,6 +1074,12 @@ png_read_destroy(png_structrp png_ptr)
    png_ptr->chunk_list = NULL;
 #endif
 
+#if defined(PNG_READ_EXPAND_SUPPORTED) && \
+    defined(PNG_ARM_NEON_IMPLEMENTATION)
+   png_free(png_ptr, png_ptr->riffled_palette);
+   png_ptr->riffled_palette = NULL;
+#endif
+
    /* NOTE: the 'setjmp' buffer may still be allocated and the memory and error
     * callbacks are still set at this point.  They are required to complete the
     * destruction of the png_struct itself.
diff --git a/thirdparty/libpng/pngrtran.c b/thirdparty/libpng/pngrtran.c
index ccc58ce6f1..9a8fad9f4a 100644
--- a/thirdparty/libpng/pngrtran.c
+++ b/thirdparty/libpng/pngrtran.c
@@ -1,7 +1,7 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -1182,20 +1182,20 @@ png_init_palette_transformations(png_structrp png_ptr)
              png_ptr->palette[png_ptr->background.index].blue;
 
 #ifdef PNG_READ_INVERT_ALPHA_SUPPORTED
-        if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
-        {
-           if ((png_ptr->transformations & PNG_EXPAND_tRNS) == 0)
-           {
-              /* Invert the alpha channel (in tRNS) unless the pixels are
-               * going to be expanded, in which case leave it for later
-               */
-              int i, istop = png_ptr->num_trans;
-
-              for (i=0; i<istop; i++)
-                 png_ptr->trans_alpha[i] = (png_byte)(255 -
-                    png_ptr->trans_alpha[i]);
-           }
-        }
+         if ((png_ptr->transformations & PNG_INVERT_ALPHA) != 0)
+         {
+            if ((png_ptr->transformations & PNG_EXPAND_tRNS) == 0)
+            {
+               /* Invert the alpha channel (in tRNS) unless the pixels are
+                * going to be expanded, in which case leave it for later
+                */
+               int i, istop = png_ptr->num_trans;
+
+               for (i = 0; i < istop; i++)
+                  png_ptr->trans_alpha[i] =
+                      (png_byte)(255 - png_ptr->trans_alpha[i]);
+            }
+         }
 #endif /* READ_INVERT_ALPHA */
       }
    } /* background expand and (therefore) no alpha association. */
@@ -4320,9 +4320,11 @@ png_do_expand_palette(png_structrp png_ptr, png_row_infop row_info,
                    * but sometimes row_info->bit_depth has been changed to 8.
                    * In these cases, the palette hasn't been riffled.
                    */
-                  i = png_do_expand_palette_neon_rgba(png_ptr, row_info, row,
+                  i = png_do_expand_palette_rgba8_neon(png_ptr, row_info, row,
                       &sp, &dp);
                }
+#else
+               PNG_UNUSED(png_ptr)
 #endif
 
                for (; i < row_width; i++)
@@ -4349,8 +4351,10 @@ png_do_expand_palette(png_structrp png_ptr, png_row_infop row_info,
                dp = row + (size_t)(row_width * 3) - 1;
                i = 0;
 #ifdef PNG_ARM_NEON_INTRINSICS_AVAILABLE
-               i = png_do_expand_palette_neon_rgb(png_ptr, row_info, row,
+               i = png_do_expand_palette_rgb8_neon(png_ptr, row_info, row,
                    &sp, &dp);
+#else
+               PNG_UNUSED(png_ptr)
 #endif
 
                for (; i < row_width; i++)
@@ -4770,19 +4774,17 @@ png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info)
 #ifdef PNG_ARM_NEON_INTRINSICS_AVAILABLE
          if ((png_ptr->num_trans > 0) && (png_ptr->bit_depth == 8))
          {
-            /* Allocate space for the decompressed full palette. */
             if (png_ptr->riffled_palette == NULL)
             {
-               png_ptr->riffled_palette = png_malloc(png_ptr, 256*4);
-               if (png_ptr->riffled_palette == NULL)
-                  png_error(png_ptr, "NULL row buffer");
-               /* Build the RGBA palette. */
-               png_riffle_palette_rgba(png_ptr, row_info);
+               /* Initialize the accelerated palette expansion. */
+               png_ptr->riffled_palette =
+                   (png_bytep)png_malloc(png_ptr, 256 * 4);
+               png_riffle_palette_neon(png_ptr);
             }
          }
 #endif
          png_do_expand_palette(png_ptr, row_info, png_ptr->row_buf + 1,
-            png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);
+             png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans);
       }
 
       else
diff --git a/thirdparty/libpng/pngrutil.c b/thirdparty/libpng/pngrutil.c
index d5fa08c397..ae66a48a83 100644
--- a/thirdparty/libpng/pngrutil.c
+++ b/thirdparty/libpng/pngrutil.c
@@ -865,6 +865,11 @@ png_handle_IHDR(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
    filter_type = buf[11];
    interlace_type = buf[12];
 
+#ifdef PNG_READ_APNG_SUPPORTED
+   png_ptr->first_frame_width = width;
+   png_ptr->first_frame_height = height;
+#endif
+
    /* Set internal variables */
    png_ptr->width = width;
    png_ptr->height = height;
@@ -2857,6 +2862,179 @@ png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
 }
 #endif
 
+#ifdef PNG_READ_APNG_SUPPORTED
+void /* PRIVATE */
+png_handle_acTL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
+{
+    png_byte data[8];
+    png_uint_32 num_frames;
+    png_uint_32 num_plays;
+    png_uint_32 didSet;
+
+    png_debug(1, "in png_handle_acTL");
+
+    if (!(png_ptr->mode & PNG_HAVE_IHDR))
+    {
+        png_error(png_ptr, "Missing IHDR before acTL");
+    }
+    else if (png_ptr->mode & PNG_HAVE_IDAT)
+    {
+        png_warning(png_ptr, "Invalid acTL after IDAT skipped");
+        png_crc_finish(png_ptr, length);
+        return;
+    }
+    else if (png_ptr->mode & PNG_HAVE_acTL)
+    {
+        png_warning(png_ptr, "Duplicate acTL skipped");
+        png_crc_finish(png_ptr, length);
+        return;
+    }
+    else if (length != 8)
+    {
+        png_warning(png_ptr, "acTL with invalid length skipped");
+        png_crc_finish(png_ptr, length);
+        return;
+    }
+
+    png_crc_read(png_ptr, data, 8);
+    png_crc_finish(png_ptr, 0);
+
+    num_frames = png_get_uint_31(png_ptr, data);
+    num_plays = png_get_uint_31(png_ptr, data + 4);
+
+    /* the set function will do error checking on num_frames */
+    didSet = png_set_acTL(png_ptr, info_ptr, num_frames, num_plays);
+    if(didSet)
+        png_ptr->mode |= PNG_HAVE_acTL;
+}
+
+void /* PRIVATE */
+png_handle_fcTL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
+{
+    png_byte data[22];
+    png_uint_32 width;
+    png_uint_32 height;
+    png_uint_32 x_offset;
+    png_uint_32 y_offset;
+    png_uint_16 delay_num;
+    png_uint_16 delay_den;
+    png_byte dispose_op;
+    png_byte blend_op;
+
+    png_debug(1, "in png_handle_fcTL");
+
+    png_ensure_sequence_number(png_ptr, length);
+
+    if (!(png_ptr->mode & PNG_HAVE_IHDR))
+    {
+        png_error(png_ptr, "Missing IHDR before fcTL");
+    }
+    else if (png_ptr->mode & PNG_HAVE_IDAT)
+    {
+        /* for any frames other then the first this message may be misleading,
+        * but correct. PNG_HAVE_IDAT is unset before the frame head is read
+        * i can't think of a better message */
+        png_warning(png_ptr, "Invalid fcTL after IDAT skipped");
+        png_crc_finish(png_ptr, length-4);
+        return;
+    }
+    else if (png_ptr->mode & PNG_HAVE_fcTL)
+    {
+        png_warning(png_ptr, "Duplicate fcTL within one frame skipped");
+        png_crc_finish(png_ptr, length-4);
+        return;
+    }
+    else if (length != 26)
+    {
+        png_warning(png_ptr, "fcTL with invalid length skipped");
+        png_crc_finish(png_ptr, length-4);
+        return;
+    }
+
+    png_crc_read(png_ptr, data, 22);
+    png_crc_finish(png_ptr, 0);
+
+    width = png_get_uint_31(png_ptr, data);
+    height = png_get_uint_31(png_ptr, data + 4);
+    x_offset = png_get_uint_31(png_ptr, data + 8);
+    y_offset = png_get_uint_31(png_ptr, data + 12);
+    delay_num = png_get_uint_16(data + 16);
+    delay_den = png_get_uint_16(data + 18);
+    dispose_op = data[20];
+    blend_op = data[21];
+
+    if (png_ptr->num_frames_read == 0 && (x_offset != 0 || y_offset != 0))
+    {
+        png_warning(png_ptr, "fcTL for the first frame must have zero offset");
+        return;
+    }
+
+    if (info_ptr != NULL)
+    {
+        if (png_ptr->num_frames_read == 0 &&
+            (width != info_ptr->width || height != info_ptr->height))
+        {
+            png_warning(png_ptr, "size in first frame's fcTL must match "
+                               "the size in IHDR");
+            return;
+        }
+
+        /* The set function will do more error checking */
+        png_set_next_frame_fcTL(png_ptr, info_ptr, width, height,
+                                x_offset, y_offset, delay_num, delay_den,
+                                dispose_op, blend_op);
+
+        png_read_reinit(png_ptr, info_ptr);
+
+        png_ptr->mode |= PNG_HAVE_fcTL;
+    }
+}
+
+void /* PRIVATE */
+png_have_info(png_structp png_ptr, png_infop info_ptr)
+{
+    if((info_ptr->valid & PNG_INFO_acTL) && !(info_ptr->valid & PNG_INFO_fcTL))
+    {
+        png_ptr->apng_flags |= PNG_FIRST_FRAME_HIDDEN;
+        info_ptr->num_frames++;
+    }
+}
+
+void /* PRIVATE */
+png_handle_fdAT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
+{
+    png_ensure_sequence_number(png_ptr, length);
+
+    /* This function is only called from png_read_end(), png_read_info(),
+    * and png_push_read_chunk() which means that:
+    * - the user doesn't want to read this frame
+    * - or this is an out-of-place fdAT
+    * in either case it is safe to ignore the chunk with a warning */
+    png_warning(png_ptr, "ignoring fdAT chunk");
+    png_crc_finish(png_ptr, length - 4);
+    PNG_UNUSED(info_ptr)
+}
+
+void /* PRIVATE */
+png_ensure_sequence_number(png_structp png_ptr, png_uint_32 length)
+{
+    png_byte data[4];
+    png_uint_32 sequence_number;
+
+    if (length < 4)
+        png_error(png_ptr, "invalid fcTL or fdAT chunk found");
+
+    png_crc_read(png_ptr, data, 4);
+    sequence_number = png_get_uint_31(png_ptr, data);
+
+    if (sequence_number != png_ptr->next_seq_num)
+        png_error(png_ptr, "fcTL or fdAT chunk with out-of-order sequence "
+                           "number found");
+
+    png_ptr->next_seq_num++;
+}
+#endif /* PNG_READ_APNG_SUPPORTED */
+
 #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
 /* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */
 static int
@@ -4165,7 +4343,38 @@ png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
       {
          uInt avail_in;
          png_bytep buffer;
+#ifdef PNG_READ_APNG_SUPPORTED
+         png_uint_32 bytes_to_skip = 0;
+
+         while (png_ptr->idat_size == 0 || bytes_to_skip != 0)
+         {
+            png_crc_finish(png_ptr, bytes_to_skip);
+            bytes_to_skip = 0;
+
+            png_ptr->idat_size = png_read_chunk_header(png_ptr);
+            if (png_ptr->num_frames_read == 0)
+            {
+               if (png_ptr->chunk_name != png_IDAT)
+                  png_error(png_ptr, "Not enough image data");
+            }
+            else
+            {
+               if (png_ptr->chunk_name == png_IEND)
+                  png_error(png_ptr, "Not enough image data");
+               if (png_ptr->chunk_name != png_fdAT)
+               {
+                  png_warning(png_ptr, "Skipped (ignored) a chunk "
+                                       "between APNG chunks");
+                  bytes_to_skip = png_ptr->idat_size;
+                  continue;
+               }
+
+               png_ensure_sequence_number(png_ptr, png_ptr->idat_size);
 
+               png_ptr->idat_size -= 4;
+            }
+         }
+#else
          while (png_ptr->idat_size == 0)
          {
             png_crc_finish(png_ptr, 0);
@@ -4177,7 +4386,7 @@ png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
             if (png_ptr->chunk_name != png_IDAT)
                png_error(png_ptr, "Not enough image data");
          }
-
+#endif /* PNG_READ_APNG_SUPPORTED */
          avail_in = png_ptr->IDAT_read_size;
 
          if (avail_in > png_ptr->idat_size)
@@ -4240,6 +4449,9 @@ png_read_IDAT_data(png_structrp png_ptr, png_bytep output,
 
          png_ptr->mode |= PNG_AFTER_IDAT;
          png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
+#ifdef PNG_READ_APNG_SUPPORTED
+         png_ptr->num_frames_read++;
+#endif
 
          if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0)
             png_chunk_benign_error(png_ptr, "Extra compressed data");
@@ -4678,4 +4890,80 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)
 
    png_ptr->flags |= PNG_FLAG_ROW_INIT;
 }
+
+#ifdef PNG_READ_APNG_SUPPORTED
+/* This function is to be called after the main IDAT set has been read and
+ * before a new IDAT is read. It resets some parts of png_ptr
+ * to make them usable by the read functions again */
+void /* PRIVATE */
+png_read_reset(png_structp png_ptr)
+{
+    png_ptr->mode &= ~PNG_HAVE_IDAT;
+    png_ptr->mode &= ~PNG_AFTER_IDAT;
+    png_ptr->row_number = 0;
+    png_ptr->pass = 0;
+}
+
+void /* PRIVATE */
+png_read_reinit(png_structp png_ptr, png_infop info_ptr)
+{
+    png_ptr->width = info_ptr->next_frame_width;
+    png_ptr->height = info_ptr->next_frame_height;
+    png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->width);
+    png_ptr->info_rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,
+        png_ptr->width);
+    if (png_ptr->prev_row)
+        memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
+}
+
+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+/* same as png_read_reset() but for the progressive reader */
+void /* PRIVATE */
+png_progressive_read_reset(png_structp png_ptr)
+{
+#ifdef PNG_READ_INTERLACING_SUPPORTED
+   /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
+
+   /* Start of interlace block */
+    const int png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
+
+    /* Offset to next interlace block */
+    const int png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+
+    /* Start of interlace block in the y direction */
+    const int png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
+
+    /* Offset to next interlace block in the y direction */
+    const int png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
+
+    if (png_ptr->interlaced)
+    {
+        if (!(png_ptr->transformations & PNG_INTERLACE))
+            png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 -
+                                png_pass_ystart[0]) / png_pass_yinc[0];
+        else
+            png_ptr->num_rows = png_ptr->height;
+
+        png_ptr->iwidth = (png_ptr->width +
+                           png_pass_inc[png_ptr->pass] - 1 -
+                           png_pass_start[png_ptr->pass]) /
+                           png_pass_inc[png_ptr->pass];
+    }
+    else
+#endif /* PNG_READ_INTERLACING_SUPPORTED */
+    {
+        png_ptr->num_rows = png_ptr->height;
+        png_ptr->iwidth = png_ptr->width;
+    }
+    png_ptr->flags &= ~PNG_FLAG_ZSTREAM_ENDED;
+    if (inflateReset(&(png_ptr->zstream)) != Z_OK)
+        png_error(png_ptr, "inflateReset failed");
+    png_ptr->zstream.avail_in = 0;
+    png_ptr->zstream.next_in = 0;
+    png_ptr->zstream.next_out = png_ptr->row_buf;
+    png_ptr->zstream.avail_out = (uInt)PNG_ROWBYTES(png_ptr->pixel_depth,
+        png_ptr->iwidth) + 1;
+}
+#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PNG_READ_APNG_SUPPORTED */
 #endif /* READ */
diff --git a/thirdparty/libpng/pngset.c b/thirdparty/libpng/pngset.c
index ec75dbe369..a281db58ae 100644
--- a/thirdparty/libpng/pngset.c
+++ b/thirdparty/libpng/pngset.c
@@ -288,6 +288,11 @@ png_set_IHDR(png_const_structrp png_ptr, png_inforp info_ptr,
    info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
 
    info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
+
+#ifdef PNG_APNG_SUPPORTED
+   /* for non-animated png. this may be overwritten from an acTL chunk later */
+   info_ptr->num_frames = 1;
+#endif
 }
 
 #ifdef PNG_oFFs_SUPPORTED
@@ -1158,6 +1163,147 @@ png_set_sPLT(png_const_structrp png_ptr,
 }
 #endif /* sPLT */
 
+#ifdef PNG_APNG_SUPPORTED
+png_uint_32 PNGAPI
+png_set_acTL(png_structp png_ptr, png_infop info_ptr,
+    png_uint_32 num_frames, png_uint_32 num_plays)
+{
+    png_debug1(1, "in %s storage function", "acTL");
+
+    if (png_ptr == NULL || info_ptr == NULL)
+    {
+        png_warning(png_ptr,
+                    "Call to png_set_acTL() with NULL png_ptr "
+                    "or info_ptr ignored");
+        return (0);
+    }
+    if (num_frames == 0)
+    {
+        png_warning(png_ptr,
+                    "Ignoring attempt to set acTL with num_frames zero");
+        return (0);
+    }
+    if (num_frames > PNG_UINT_31_MAX)
+    {
+        png_warning(png_ptr,
+                    "Ignoring attempt to set acTL with num_frames > 2^31-1");
+        return (0);
+    }
+    if (num_plays > PNG_UINT_31_MAX)
+    {
+        png_warning(png_ptr,
+                    "Ignoring attempt to set acTL with num_plays "
+                    "> 2^31-1");
+        return (0);
+    }
+
+    info_ptr->num_frames = num_frames;
+    info_ptr->num_plays = num_plays;
+
+    info_ptr->valid |= PNG_INFO_acTL;
+
+    return (1);
+}
+
+/* delay_num and delay_den can hold any 16-bit values including zero */
+png_uint_32 PNGAPI
+png_set_next_frame_fcTL(png_structp png_ptr, png_infop info_ptr,
+    png_uint_32 width, png_uint_32 height,
+    png_uint_32 x_offset, png_uint_32 y_offset,
+    png_uint_16 delay_num, png_uint_16 delay_den,
+    png_byte dispose_op, png_byte blend_op)
+{
+    png_debug1(1, "in %s storage function", "fcTL");
+
+    if (png_ptr == NULL || info_ptr == NULL)
+    {
+        png_warning(png_ptr,
+                    "Call to png_set_fcTL() with NULL png_ptr or info_ptr "
+                    "ignored");
+        return (0);
+    }
+
+    png_ensure_fcTL_is_valid(png_ptr, width, height, x_offset, y_offset,
+                             delay_num, delay_den, dispose_op, blend_op);
+
+    if (blend_op == PNG_BLEND_OP_OVER)
+    {
+        if (!(png_ptr->color_type & PNG_COLOR_MASK_ALPHA) &&
+            !(png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)))
+        {
+          png_warning(png_ptr, "PNG_BLEND_OP_OVER is meaningless "
+                               "and wasteful for opaque images, ignored");
+          blend_op = PNG_BLEND_OP_SOURCE;
+        }
+    }
+
+    info_ptr->next_frame_width = width;
+    info_ptr->next_frame_height = height;
+    info_ptr->next_frame_x_offset = x_offset;
+    info_ptr->next_frame_y_offset = y_offset;
+    info_ptr->next_frame_delay_num = delay_num;
+    info_ptr->next_frame_delay_den = delay_den;
+    info_ptr->next_frame_dispose_op = dispose_op;
+    info_ptr->next_frame_blend_op = blend_op;
+
+    info_ptr->valid |= PNG_INFO_fcTL;
+
+    return (1);
+}
+
+void /* PRIVATE */
+png_ensure_fcTL_is_valid(png_structp png_ptr,
+    png_uint_32 width, png_uint_32 height,
+    png_uint_32 x_offset, png_uint_32 y_offset,
+    png_uint_16 delay_num, png_uint_16 delay_den,
+    png_byte dispose_op, png_byte blend_op)
+{
+    if (width == 0 || width > PNG_UINT_31_MAX)
+        png_error(png_ptr, "invalid width in fcTL (> 2^31-1)");
+    if (height == 0 || height > PNG_UINT_31_MAX)
+        png_error(png_ptr, "invalid height in fcTL (> 2^31-1)");
+    if (x_offset > PNG_UINT_31_MAX)
+        png_error(png_ptr, "invalid x_offset in fcTL (> 2^31-1)");
+    if (y_offset > PNG_UINT_31_MAX)
+        png_error(png_ptr, "invalid y_offset in fcTL (> 2^31-1)");
+    if (width + x_offset > png_ptr->first_frame_width ||
+        height + y_offset > png_ptr->first_frame_height)
+        png_error(png_ptr, "dimensions of a frame are greater than"
+                           "the ones in IHDR");
+
+    if (dispose_op != PNG_DISPOSE_OP_NONE &&
+        dispose_op != PNG_DISPOSE_OP_BACKGROUND &&
+        dispose_op != PNG_DISPOSE_OP_PREVIOUS)
+        png_error(png_ptr, "invalid dispose_op in fcTL");
+
+    if (blend_op != PNG_BLEND_OP_SOURCE &&
+        blend_op != PNG_BLEND_OP_OVER)
+        png_error(png_ptr, "invalid blend_op in fcTL");
+
+    PNG_UNUSED(delay_num)
+    PNG_UNUSED(delay_den)
+}
+
+png_uint_32 PNGAPI
+png_set_first_frame_is_hidden(png_structp png_ptr, png_infop info_ptr,
+                              png_byte is_hidden)
+{
+    png_debug(1, "in png_first_frame_is_hidden()");
+
+    if (png_ptr == NULL)
+        return 0;
+
+    if (is_hidden)
+        png_ptr->apng_flags |= PNG_FIRST_FRAME_HIDDEN;
+    else
+        png_ptr->apng_flags &= ~PNG_FIRST_FRAME_HIDDEN;
+
+    PNG_UNUSED(info_ptr)
+
+    return 1;
+}
+#endif /* PNG_APNG_SUPPORTED */
+
 #ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
 static png_byte
 check_location(png_const_structrp png_ptr, int location)
diff --git a/thirdparty/libpng/pngstruct.h b/thirdparty/libpng/pngstruct.h
index 94a6d041ff..2a2236f92e 100644
--- a/thirdparty/libpng/pngstruct.h
+++ b/thirdparty/libpng/pngstruct.h
@@ -1,7 +1,7 @@
 
 /* pngstruct.h - header file for PNG reference library
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -228,10 +228,6 @@ struct png_struct_def
                                * big_row_buf; while writing it is separately
                                * allocated.
                                */
-#ifdef PNG_READ_EXPAND_SUPPORTED
-   /* Buffer to accelerate palette transformations. */
-   png_bytep riffled_palette;
-#endif
 #ifdef PNG_WRITE_FILTER_SUPPORTED
    png_bytep try_row;    /* buffer to save trial row when filtering */
    png_bytep tst_row;    /* buffer to save best trial row when filtering */
@@ -396,6 +392,12 @@ struct png_struct_def
    /* deleted in 1.5.5: rgb_to_gray_blue_coeff; */
 #endif
 
+/* New member added in libpng-1.6.36 */
+#if defined(PNG_READ_EXPAND_SUPPORTED) && \
+    defined(PNG_ARM_NEON_IMPLEMENTATION)
+   png_bytep riffled_palette; /* buffer for accelerated palette expansion */
+#endif
+
 /* New member added in libpng-1.0.4 (renamed in 1.0.9) */
 #if defined(PNG_MNG_FEATURES_SUPPORTED)
 /* Changed from png_byte to png_uint_32 at version 1.2.0 */
@@ -407,6 +409,27 @@ struct png_struct_def
    png_byte filter_type;
 #endif
 
+#ifdef PNG_APNG_SUPPORTED
+   png_uint_32 apng_flags;
+   png_uint_32 next_seq_num;         /* next fcTL/fdAT chunk sequence number */
+   png_uint_32 first_frame_width;
+   png_uint_32 first_frame_height;
+
+#ifdef PNG_READ_APNG_SUPPORTED
+   png_uint_32 num_frames_read;      /* incremented after all image data of */
+                                     /* a frame is read */
+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+   png_progressive_frame_ptr frame_info_fn; /* frame info read callback */
+   png_progressive_frame_ptr frame_end_fn;  /* frame data read callback */
+#endif
+#endif
+
+#ifdef PNG_WRITE_APNG_SUPPORTED
+   png_uint_32 num_frames_to_write;
+   png_uint_32 num_frames_written;
+#endif
+#endif /* PNG_APNG_SUPPORTED */
+
 /* New members added in libpng-1.2.0 */
 
 /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
diff --git a/thirdparty/libpng/pngwrite.c b/thirdparty/libpng/pngwrite.c
index 160c877d38..5e68032378 100644
--- a/thirdparty/libpng/pngwrite.c
+++ b/thirdparty/libpng/pngwrite.c
@@ -1,7 +1,7 @@
 
 /* pngwrite.c - general routines to write a PNG file
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -128,6 +128,10 @@ png_write_info_before_PLTE(png_structrp png_ptr, png_const_inforp info_ptr)
        * the application continues writing the PNG.  So check the 'invalid'
        * flag here too.
        */
+#ifdef PNG_WRITE_APNG_SUPPORTED
+      if (info_ptr->valid & PNG_INFO_acTL)
+         png_write_acTL(png_ptr, info_ptr->num_frames, info_ptr->num_plays);
+#endif
 #ifdef PNG_GAMMA_SUPPORTED
 #  ifdef PNG_WRITE_gAMA_SUPPORTED
       if ((info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) == 0 &&
@@ -370,6 +374,11 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr)
       png_benign_error(png_ptr, "Wrote palette index exceeding num_palette");
 #endif
 
+#ifdef PNG_WRITE_APNG_SUPPORTED
+   if (png_ptr->num_frames_written != png_ptr->num_frames_to_write)
+      png_error(png_ptr, "Not enough frames written");
+#endif
+
    /* See if user wants us to write information chunks */
    if (info_ptr != NULL)
    {
@@ -948,10 +957,6 @@ png_write_destroy(png_structrp png_ptr)
    png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list);
    png_free(png_ptr, png_ptr->row_buf);
    png_ptr->row_buf = NULL;
-#ifdef PNG_READ_EXPANDED_SUPPORTED
-   png_free(png_ptr, png_ptr->riffled_palette);
-   png_ptr->riffled_palette = NULL;
-#endif
 #ifdef PNG_WRITE_FILTER_SUPPORTED
    png_free(png_ptr, png_ptr->prev_row);
    png_free(png_ptr, png_ptr->try_row);
@@ -1465,6 +1470,43 @@ png_write_png(png_structrp png_ptr, png_inforp info_ptr,
 }
 #endif
 
+#ifdef PNG_WRITE_APNG_SUPPORTED
+void PNGAPI
+png_write_frame_head(png_structp png_ptr, png_infop info_ptr,
+    png_bytepp row_pointers, png_uint_32 width, png_uint_32 height,
+    png_uint_32 x_offset, png_uint_32 y_offset,
+    png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op,
+    png_byte blend_op)
+{
+    png_debug(1, "in png_write_frame_head");
+
+    /* there is a chance this has been set after png_write_info was called,
+    * so it would be set but not written. is there a way to be sure? */
+    if (!(info_ptr->valid & PNG_INFO_acTL))
+        png_error(png_ptr, "png_write_frame_head(): acTL not set");
+
+    png_write_reset(png_ptr);
+
+    png_write_reinit(png_ptr, info_ptr, width, height);
+
+    if ( !(png_ptr->num_frames_written == 0 &&
+           (png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN) ) )
+        png_write_fcTL(png_ptr, width, height, x_offset, y_offset,
+                       delay_num, delay_den, dispose_op, blend_op);
+
+    PNG_UNUSED(row_pointers)
+}
+
+void PNGAPI
+png_write_frame_tail(png_structp png_ptr, png_infop info_ptr)
+{
+    png_debug(1, "in png_write_frame_tail");
+
+    png_ptr->num_frames_written++;
+
+    PNG_UNUSED(info_ptr)
+}
+#endif /* PNG_WRITE_APNG_SUPPORTED */
 
 #ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
 /* Initialize the write structure - general purpose utility. */
diff --git a/thirdparty/libpng/pngwutil.c b/thirdparty/libpng/pngwutil.c
index 16345e4c0b..b4809cda6b 100644
--- a/thirdparty/libpng/pngwutil.c
+++ b/thirdparty/libpng/pngwutil.c
@@ -821,6 +821,11 @@ png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height,
    /* Write the chunk */
    png_write_complete_chunk(png_ptr, png_IHDR, buf, 13);
 
+#ifdef PNG_WRITE_APNG_SUPPORTED
+   png_ptr->first_frame_width = width;
+   png_ptr->first_frame_height = height;
+#endif
+
    if ((png_ptr->do_filter) == PNG_NO_FILTERS)
    {
       if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE ||
@@ -1002,8 +1007,17 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
                optimize_cmf(data, png_image_size(png_ptr));
 #endif
 
-         if (size > 0)
-            png_write_complete_chunk(png_ptr, png_IDAT, data, size);
+            if (size > 0)
+#ifdef PNG_WRITE_APNG_SUPPORTED
+            {
+               if (png_ptr->num_frames_written == 0)
+#endif
+               png_write_complete_chunk(png_ptr, png_IDAT, data, size);
+#ifdef PNG_WRITE_APNG_SUPPORTED
+               else
+                  png_write_fdAT(png_ptr, data, size);
+            }
+#endif /* PNG_WRITE_APNG_SUPPORTED */
          png_ptr->mode |= PNG_HAVE_IDAT;
 
          png_ptr->zstream.next_out = data;
@@ -1050,7 +1064,17 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
 #endif
 
          if (size > 0)
+#ifdef PNG_WRITE_APNG_SUPPORTED
+         {
+            if (png_ptr->num_frames_written == 0)
+#endif
             png_write_complete_chunk(png_ptr, png_IDAT, data, size);
+#ifdef PNG_WRITE_APNG_SUPPORTED
+            else
+               png_write_fdAT(png_ptr, data, size);
+         }
+#endif /* PNG_WRITE_APNG_SUPPORTED */
+
          png_ptr->zstream.avail_out = 0;
          png_ptr->zstream.next_out = NULL;
          png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT;
@@ -1885,6 +1909,82 @@ png_write_tIME(png_structrp png_ptr, png_const_timep mod_time)
 }
 #endif
 
+#ifdef PNG_WRITE_APNG_SUPPORTED
+void /* PRIVATE */
+png_write_acTL(png_structp png_ptr,
+    png_uint_32 num_frames, png_uint_32 num_plays)
+{
+    png_byte buf[8];
+
+    png_debug(1, "in png_write_acTL");
+
+    png_ptr->num_frames_to_write = num_frames;
+
+    if (png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN)
+        num_frames--;
+
+    png_save_uint_32(buf, num_frames);
+    png_save_uint_32(buf + 4, num_plays);
+
+    png_write_complete_chunk(png_ptr, png_acTL, buf, (png_size_t)8);
+}
+
+void /* PRIVATE */
+png_write_fcTL(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
+    png_uint_32 x_offset, png_uint_32 y_offset,
+    png_uint_16 delay_num, png_uint_16 delay_den, png_byte dispose_op,
+    png_byte blend_op)
+{
+    png_byte buf[26];
+
+    png_debug(1, "in png_write_fcTL");
+
+    if (png_ptr->num_frames_written == 0 && (x_offset != 0 || y_offset != 0))
+        png_error(png_ptr, "x and/or y offset for the first frame aren't 0");
+    if (png_ptr->num_frames_written == 0 &&
+        (width != png_ptr->first_frame_width ||
+         height != png_ptr->first_frame_height))
+        png_error(png_ptr, "width and/or height in the first frame's fcTL "
+                           "don't match the ones in IHDR");
+
+    /* more error checking */
+    png_ensure_fcTL_is_valid(png_ptr, width, height, x_offset, y_offset,
+                             delay_num, delay_den, dispose_op, blend_op);
+
+    png_save_uint_32(buf, png_ptr->next_seq_num);
+    png_save_uint_32(buf + 4, width);
+    png_save_uint_32(buf + 8, height);
+    png_save_uint_32(buf + 12, x_offset);
+    png_save_uint_32(buf + 16, y_offset);
+    png_save_uint_16(buf + 20, delay_num);
+    png_save_uint_16(buf + 22, delay_den);
+    buf[24] = dispose_op;
+    buf[25] = blend_op;
+
+    png_write_complete_chunk(png_ptr, png_fcTL, buf, (png_size_t)26);
+
+    png_ptr->next_seq_num++;
+}
+
+void /* PRIVATE */
+png_write_fdAT(png_structp png_ptr,
+    png_const_bytep data, png_size_t length)
+{
+    png_byte buf[4];
+
+    png_write_chunk_header(png_ptr, png_fdAT, (png_uint_32)(4 + length));
+
+    png_save_uint_32(buf, png_ptr->next_seq_num);
+    png_write_chunk_data(png_ptr, buf, 4);
+
+    png_write_chunk_data(png_ptr, data, length);
+
+    png_write_chunk_end(png_ptr);
+
+    png_ptr->next_seq_num++;
+}
+#endif /* PNG_WRITE_APNG_SUPPORTED */
+
 /* Initializes the row writing capability of libpng */
 void /* PRIVATE */
 png_write_start_row(png_structrp png_ptr)
@@ -2778,4 +2878,39 @@ png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
    }
 #endif /* WRITE_FLUSH */
 }
+
+#ifdef PNG_WRITE_APNG_SUPPORTED
+void /* PRIVATE */
+png_write_reset(png_structp png_ptr)
+{
+    png_ptr->row_number = 0;
+    png_ptr->pass = 0;
+    png_ptr->mode &= ~PNG_HAVE_IDAT;
+}
+
+void /* PRIVATE */
+png_write_reinit(png_structp png_ptr, png_infop info_ptr,
+                 png_uint_32 width, png_uint_32 height)
+{
+    if (png_ptr->num_frames_written == 0 &&
+        (width != png_ptr->first_frame_width ||
+         height != png_ptr->first_frame_height))
+        png_error(png_ptr, "width and/or height in the first frame's fcTL "
+                           "don't match the ones in IHDR");
+    if (width > png_ptr->first_frame_width ||
+        height > png_ptr->first_frame_height)
+        png_error(png_ptr, "width and/or height for a frame greater than"
+                           "the ones in IHDR");
+
+    png_set_IHDR(png_ptr, info_ptr, width, height,
+                 info_ptr->bit_depth, info_ptr->color_type,
+                 info_ptr->interlace_type, info_ptr->compression_type,
+                 info_ptr->filter_type);
+
+    png_ptr->width = width;
+    png_ptr->height = height;
+    png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width);
+    png_ptr->usr_width = png_ptr->width;
+}
+#endif /* PNG_WRITE_APNG_SUPPORTED */
 #endif /* WRITE */
diff --git a/thirdparty/libsimplewebm/OpusVorbisDecoder.cpp b/thirdparty/libsimplewebm/OpusVorbisDecoder.cpp
index c9e71eb733..b5824b17be 100644
--- a/thirdparty/libsimplewebm/OpusVorbisDecoder.cpp
+++ b/thirdparty/libsimplewebm/OpusVorbisDecoder.cpp
@@ -122,6 +122,7 @@ bool OpusVorbisDecoder::getPCMS16(WebMFrame &frame, short *buffer, int &numOutSa
 	return false;
 }
 
+// -- GODOT begin --
 bool OpusVorbisDecoder::getPCMF(WebMFrame &frame, float *buffer, int &numOutSamples) {
 	if (m_vorbis) {
 		m_vorbis->op.packet = frame.buffer;
@@ -158,6 +159,7 @@ bool OpusVorbisDecoder::getPCMF(WebMFrame &frame, float *buffer, int &numOutSamp
 	}
 	return false;
 }
+// -- GODOT end --
 
 bool OpusVorbisDecoder::openVorbis(const WebMDemuxer &demuxer)
 {
diff --git a/thirdparty/libsimplewebm/OpusVorbisDecoder.hpp b/thirdparty/libsimplewebm/OpusVorbisDecoder.hpp
index b7619d6a25..f285b3fbd6 100644
--- a/thirdparty/libsimplewebm/OpusVorbisDecoder.hpp
+++ b/thirdparty/libsimplewebm/OpusVorbisDecoder.hpp
@@ -44,8 +44,10 @@ public:
 	{
 		return m_numSamples;
 	}
-	bool getPCMF(WebMFrame &frame, float *buffer, int &numOutSamples);
 	bool getPCMS16(WebMFrame &frame, short *buffer, int &numOutSamples);
+// -- GODOT begin --
+	bool getPCMF(WebMFrame &frame, float *buffer, int &numOutSamples);
+// -- GODOT end --
 
 private:
 	bool openVorbis(const WebMDemuxer &demuxer);
diff --git a/thirdparty/libsimplewebm/VPXDecoder.cpp b/thirdparty/libsimplewebm/VPXDecoder.cpp
index 3f77b8f5cd..e2606f83ba 100644
--- a/thirdparty/libsimplewebm/VPXDecoder.cpp
+++ b/thirdparty/libsimplewebm/VPXDecoder.cpp
@@ -33,7 +33,8 @@
 VPXDecoder::VPXDecoder(const WebMDemuxer &demuxer, unsigned threads) :
 	m_ctx(NULL),
 	m_iter(NULL),
-	m_delay(0)
+	m_delay(0),
+	m_last_space(VPX_CS_UNKNOWN)
 {
 	if (threads > 8)
 		threads = 8;
@@ -86,6 +87,11 @@ VPXDecoder::IMAGE_ERROR VPXDecoder::getImage(Image &image)
 	IMAGE_ERROR err = NO_FRAME;
 	if (vpx_image_t *img = vpx_codec_get_frame(m_ctx, &m_iter))
 	{
+		// It seems to be a common problem that UNKNOWN comes up a lot, yet FFMPEG is somehow getting accurate colour-space information.
+		// After checking FFMPEG code, *they're* getting colour-space information, so I'm assuming something like this is going on.
+		// It appears to work, at least.
+		if (img->cs != VPX_CS_UNKNOWN)
+			m_last_space = img->cs;
 		if ((img->fmt & VPX_IMG_FMT_PLANAR) && !(img->fmt & (VPX_IMG_FMT_HAS_ALPHA | VPX_IMG_FMT_HIGHBITDEPTH)))
 		{
 			if (img->stride[0] && img->stride[1] && img->stride[2])
@@ -95,6 +101,7 @@ VPXDecoder::IMAGE_ERROR VPXDecoder::getImage(Image &image)
 
 				image.w = img->d_w;
 				image.h = img->d_h;
+				image.cs = m_last_space;
 				image.chromaShiftW = img->x_chroma_shift;
 				image.chromaShiftH = img->y_chroma_shift;
 
@@ -119,7 +126,9 @@ VPXDecoder::IMAGE_ERROR VPXDecoder::getImage(Image &image)
 
 /**/
 
+// -- GODOT begin --
 #if 0
+// -- GODOT end --
 
 static inline int ceilRshift(int val, int shift)
 {
@@ -139,4 +148,7 @@ int VPXDecoder::Image::getHeight(int plane) const
 	return ceilRshift(h, chromaShiftH);
 }
 
+// -- GODOT begin --
 #endif
+// -- GODOT end --
+
diff --git a/thirdparty/libsimplewebm/VPXDecoder.hpp b/thirdparty/libsimplewebm/VPXDecoder.hpp
index 6108395871..5071b069cb 100644
--- a/thirdparty/libsimplewebm/VPXDecoder.hpp
+++ b/thirdparty/libsimplewebm/VPXDecoder.hpp
@@ -37,12 +37,17 @@ public:
 	class Image
 	{
 	public:
+// -- GODOT begin --
 #if 0
+// -- GODOT end --
 		int getWidth(int plane) const;
 		int getHeight(int plane) const;
+// -- GODOT begin --
 #endif
+// -- GODOT end --
 
 		int w, h;
+		int cs;
 		int chromaShiftW, chromaShiftH;
 		unsigned char *planes[3];
 		int linesize[3];
@@ -75,6 +80,7 @@ private:
 	vpx_codec_ctx *m_ctx;
 	const void *m_iter;
 	int m_delay;
+	int m_last_space;
 };
 
 #endif // VPXDECODER_HPP
diff --git a/thirdparty/libwebsockets/lib/core/alloc.c b/thirdparty/libwebsockets/core/alloc.c
index f169fc3767..f169fc3767 100644
--- a/thirdparty/libwebsockets/lib/core/alloc.c
+++ b/thirdparty/libwebsockets/core/alloc.c
diff --git a/thirdparty/libwebsockets/lib/core/context.c b/thirdparty/libwebsockets/core/context.c
index 94b2d86339..7be004df33 100644
--- a/thirdparty/libwebsockets/lib/core/context.c
+++ b/thirdparty/libwebsockets/core/context.c
@@ -35,9 +35,6 @@ const struct lws_role_ops *available_roles[] = {
 #if defined(LWS_ROLE_WS)
 	&role_ops_ws,
 #endif
-#if defined(LWS_ROLE_DBUS)
-	&role_ops_dbus,
-#endif
 	NULL
 };
 
@@ -89,57 +86,6 @@ lws_role_call_alpn_negotiated(struct lws *wsi, const char *alpn)
 	return 0;
 }
 
-#if !defined(LWS_WITHOUT_SERVER)
-int
-lws_role_call_adoption_bind(struct lws *wsi, int type, const char *prot)
-{
-	LWS_FOR_EVERY_AVAILABLE_ROLE_START(ar)
-		if (ar->adoption_bind)
-			if (ar->adoption_bind(wsi, type, prot))
-				return 0;
-	LWS_FOR_EVERY_AVAILABLE_ROLE_END;
-
-	/* fall back to raw socket role if, eg, h1 not configured */
-
-	if (role_ops_raw_skt.adoption_bind &&
-	    role_ops_raw_skt.adoption_bind(wsi, type, prot))
-		return 0;
-
-	/* fall back to raw file role if, eg, h1 not configured */
-
-	if (role_ops_raw_file.adoption_bind &&
-	    role_ops_raw_file.adoption_bind(wsi, type, prot))
-		return 0;
-
-	return 1;
-}
-#endif
-
-#if !defined(LWS_WITHOUT_CLIENT)
-int
-lws_role_call_client_bind(struct lws *wsi,
-			  const struct lws_client_connect_info *i)
-{
-	LWS_FOR_EVERY_AVAILABLE_ROLE_START(ar)
-		if (ar->client_bind) {
-			int m = ar->client_bind(wsi, i);
-			if (m < 0)
-				return m;
-			if (m)
-				return 0;
-		}
-	LWS_FOR_EVERY_AVAILABLE_ROLE_END;
-
-	/* fall back to raw socket role if, eg, h1 not configured */
-
-	if (role_ops_raw_skt.client_bind &&
-	    role_ops_raw_skt.client_bind(wsi, i))
-		return 0;
-
-	return 1;
-}
-#endif
-
 static const char * const mount_protocols[] = {
 	"http://",
 	"https://",
@@ -317,10 +263,8 @@ lws_protocol_init(struct lws_context *context)
 					(void *)pvo, 0)) {
 				lws_free(vh->protocol_vh_privs[n]);
 				vh->protocol_vh_privs[n] = NULL;
-				lwsl_err("%s: protocol %s failed init\n",
-					 __func__, vh->protocols[n].name);
-
-				return 1;
+				lwsl_err("%s: protocol %s failed init\n", __func__,
+					 vh->protocols[n].name);
 			}
 		}
 
@@ -342,6 +286,229 @@ next:
 	return 0;
 }
 
+LWS_VISIBLE int
+lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
+		    void *user, void *in, size_t len)
+{
+	struct lws_ssl_info *si;
+#ifdef LWS_WITH_CGI
+	struct lws_cgi_args *args;
+#endif
+#if defined(LWS_WITH_CGI) || defined(LWS_WITH_HTTP_PROXY)
+	char buf[512];
+	int n;
+#endif
+
+	switch (reason) {
+#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
+	case LWS_CALLBACK_HTTP:
+#ifndef LWS_NO_SERVER
+		if (lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND, NULL))
+			return -1;
+
+		if (lws_http_transaction_completed(wsi))
+#endif
+			return -1;
+		break;
+#if !defined(LWS_NO_SERVER)
+	case LWS_CALLBACK_HTTP_FILE_COMPLETION:
+		if (lws_http_transaction_completed(wsi))
+			return -1;
+		break;
+#endif
+
+	case LWS_CALLBACK_HTTP_WRITEABLE:
+#ifdef LWS_WITH_CGI
+		if (wsi->reason_bf & (LWS_CB_REASON_AUX_BF__CGI_HEADERS |
+				      LWS_CB_REASON_AUX_BF__CGI)) {
+			n = lws_cgi_write_split_stdout_headers(wsi);
+			if (n < 0) {
+				lwsl_debug("AUX_BF__CGI forcing close\n");
+				return -1;
+			}
+			if (!n)
+				lws_rx_flow_control(
+					wsi->http.cgi->stdwsi[LWS_STDOUT], 1);
+
+			if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__CGI_HEADERS)
+				wsi->reason_bf &=
+					~LWS_CB_REASON_AUX_BF__CGI_HEADERS;
+			else
+				wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__CGI;
+			break;
+		}
+
+		if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__CGI_CHUNK_END) {
+			if (!wsi->http2_substream) {
+				memcpy(buf + LWS_PRE, "0\x0d\x0a\x0d\x0a", 5);
+				lwsl_debug("writing chunk term and exiting\n");
+				n = lws_write(wsi, (unsigned char *)buf +
+						   LWS_PRE, 5, LWS_WRITE_HTTP);
+			} else
+				n = lws_write(wsi, (unsigned char *)buf +
+						   LWS_PRE, 0,
+						   LWS_WRITE_HTTP_FINAL);
+
+			/* always close after sending it */
+			return -1;
+		}
+#endif
+#if defined(LWS_WITH_HTTP_PROXY)
+		if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__PROXY) {
+			char *px = buf + LWS_PRE;
+			int lenx = sizeof(buf) - LWS_PRE;
+
+			/*
+			 * our sink is writeable and our source has something
+			 * to read.  So read a lump of source material of
+			 * suitable size to send or what's available, whichever
+			 * is the smaller.
+			 */
+			wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__PROXY;
+			if (!lws_get_child(wsi))
+				break;
+			if (lws_http_client_read(lws_get_child(wsi), &px,
+						 &lenx) < 0)
+				return -1;
+			break;
+		}
+#endif
+		break;
+
+#if defined(LWS_WITH_HTTP_PROXY)
+	case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
+		assert(lws_get_parent(wsi));
+		if (!lws_get_parent(wsi))
+			break;
+		lws_get_parent(wsi)->reason_bf |= LWS_CB_REASON_AUX_BF__PROXY;
+		lws_callback_on_writable(lws_get_parent(wsi));
+		break;
+
+	case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ:
+		assert(lws_get_parent(wsi));
+		n = lws_write(lws_get_parent(wsi), (unsigned char *)in,
+				len, LWS_WRITE_HTTP);
+		if (n < 0)
+			return -1;
+		break;
+
+	case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: {
+		unsigned char *p, *end;
+		char ctype[64], ctlen = 0;
+	
+		p = (unsigned char *)buf + LWS_PRE;
+		end = p + sizeof(buf) - LWS_PRE;
+
+		if (lws_add_http_header_status(lws_get_parent(wsi),
+					       HTTP_STATUS_OK, &p, end))
+			return 1;
+		if (lws_add_http_header_by_token(lws_get_parent(wsi),
+				WSI_TOKEN_HTTP_SERVER,
+			    	(unsigned char *)"libwebsockets",
+				13, &p, end))
+			return 1;
+
+		ctlen = lws_hdr_copy(wsi, ctype, sizeof(ctype),
+				     WSI_TOKEN_HTTP_CONTENT_TYPE);
+		if (ctlen > 0) {
+			if (lws_add_http_header_by_token(lws_get_parent(wsi),
+				WSI_TOKEN_HTTP_CONTENT_TYPE,
+				(unsigned char *)ctype, ctlen, &p, end))
+				return 1;
+		}
+
+		if (lws_finalize_http_header(lws_get_parent(wsi), &p, end))
+			return 1;
+
+		*p = '\0';
+		n = lws_write(lws_get_parent(wsi),
+			      (unsigned char *)buf + LWS_PRE,
+			      p - ((unsigned char *)buf + LWS_PRE),
+			      LWS_WRITE_HTTP_HEADERS);
+		if (n < 0)
+			return -1;
+
+		break; }
+
+#endif
+
+#ifdef LWS_WITH_CGI
+	/* CGI IO events (POLLIN/OUT) appear here, our default policy is:
+	 *
+	 *  - POST data goes on subprocess stdin
+	 *  - subprocess stdout goes on http via writeable callback
+	 *  - subprocess stderr goes to the logs
+	 */
+	case LWS_CALLBACK_CGI:
+		args = (struct lws_cgi_args *)in;
+		switch (args->ch) { /* which of stdin/out/err ? */
+		case LWS_STDIN:
+			/* TBD stdin rx flow control */
+			break;
+		case LWS_STDOUT:
+			/* quench POLLIN on STDOUT until MASTER got writeable */
+			lws_rx_flow_control(args->stdwsi[LWS_STDOUT], 0);
+			wsi->reason_bf |= LWS_CB_REASON_AUX_BF__CGI;
+			/* when writing to MASTER would not block */
+			lws_callback_on_writable(wsi);
+			break;
+		case LWS_STDERR:
+			n = lws_get_socket_fd(args->stdwsi[LWS_STDERR]);
+			if (n < 0)
+				break;
+			n = read(n, buf, sizeof(buf) - 2);
+			if (n > 0) {
+				if (buf[n - 1] != '\n')
+					buf[n++] = '\n';
+				buf[n] = '\0';
+				lwsl_notice("CGI-stderr: %s\n", buf);
+			}
+			break;
+		}
+		break;
+
+	case LWS_CALLBACK_CGI_TERMINATED:
+		lwsl_debug("LWS_CALLBACK_CGI_TERMINATED: %d %" PRIu64 "\n",
+				wsi->http.cgi->explicitly_chunked,
+				(uint64_t)wsi->http.cgi->content_length);
+		if (!wsi->http.cgi->explicitly_chunked &&
+		    !wsi->http.cgi->content_length) {
+			/* send terminating chunk */
+			lwsl_debug("LWS_CALLBACK_CGI_TERMINATED: ending\n");
+			wsi->reason_bf |= LWS_CB_REASON_AUX_BF__CGI_CHUNK_END;
+			lws_callback_on_writable(wsi);
+			lws_set_timeout(wsi, PENDING_TIMEOUT_CGI, 3);
+			break;
+		}
+		return -1;
+
+	case LWS_CALLBACK_CGI_STDIN_DATA:  /* POST body for stdin */
+		args = (struct lws_cgi_args *)in;
+		args->data[args->len] = '\0';
+		n = lws_get_socket_fd(args->stdwsi[LWS_STDIN]);
+		if (n < 0)
+			return -1;
+		n = write(n, args->data, args->len);
+		if (n < args->len)
+			lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: "
+				    "sent %d only %d went", n, args->len);
+		return n;
+#endif
+#endif
+	case LWS_CALLBACK_SSL_INFO:
+		si = in;
+
+		(void)si;
+		lwsl_notice("LWS_CALLBACK_SSL_INFO: where: 0x%x, ret: 0x%x\n",
+			    si->where, si->ret);
+		break;
+
+	default:
+		break;
+	}
+
+	return 0;
+}
 
 /* list of supported protocols and callbacks */
 
@@ -367,6 +534,9 @@ static const struct lws_protocols protocols_dummy[] = {
 #undef LWS_HAVE_GETENV
 #endif
 
+static void
+lws_vhost_destroy2(struct lws_vhost *vh);
+
 LWS_VISIBLE struct lws_vhost *
 lws_create_vhost(struct lws_context *context,
 		 const struct lws_context_creation_info *info)
@@ -425,8 +595,6 @@ lws_create_vhost(struct lws_context *context,
 	vh->pvo = info->pvo;
 	vh->headers = info->headers;
 	vh->user = info->user;
-	vh->finalize = info->finalize;
-	vh->finalize_arg = info->finalize_arg;
 
 	LWS_FOR_EVERY_AVAILABLE_ROLE_START(ar)
 		if (ar->init_vhost)
@@ -462,12 +630,10 @@ lws_create_vhost(struct lws_context *context,
 		n += (int)strlen(info->ssl_private_key_filepath) + 1;
 
 	if (n) {
-		vh->tls.key_path = vh->tls.alloc_cert_path =
-					lws_malloc(n, "vh paths");
+		vh->tls.key_path = vh->tls.alloc_cert_path = lws_malloc(n, "vh paths");
 		if (info->ssl_cert_filepath) {
 			n = (int)strlen(info->ssl_cert_filepath) + 1;
-			memcpy(vh->tls.alloc_cert_path,
-			       info->ssl_cert_filepath, n);
+			memcpy(vh->tls.alloc_cert_path, info->ssl_cert_filepath, n);
 			vh->tls.key_path += n;
 		}
 		if (info->ssl_private_key_filepath)
@@ -482,7 +648,7 @@ lws_create_vhost(struct lws_context *context,
 	 */
 	lwsp = lws_zalloc(sizeof(struct lws_protocols) * (vh->count_protocols +
 				   context->plugin_protocol_count + 1),
-			  "vhost-specific plugin table");
+				   "vhost-specific plugin table");
 	if (!lwsp) {
 		lwsl_err("OOM\n");
 		return NULL;
@@ -533,15 +699,15 @@ lws_create_vhost(struct lws_context *context,
 		lws_free(lwsp);
 	}
 
-	vh->same_vh_protocol_heads = (struct lws_dll_lws *)
-			lws_zalloc(sizeof(struct lws_dll_lws) *
-				   vh->count_protocols, "same vh list");
+	vh->same_vh_protocol_list = (struct lws **)
+			lws_zalloc(sizeof(struct lws *) * vh->count_protocols,
+				   "same vh list");
 #if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 	vh->http.mount_list = info->mounts;
 #endif
 
 #ifdef LWS_WITH_UNIX_SOCK
-	if (LWS_UNIX_SOCK_ENABLED(vh)) {
+	if (LWS_UNIX_SOCK_ENABLED(context)) {
 		lwsl_notice("Creating Vhost '%s' path \"%s\", %d protocols\n",
 				vh->name, vh->iface, vh->count_protocols);
 	} else
@@ -559,8 +725,8 @@ lws_create_vhost(struct lws_context *context,
 			break;
 		}
 		lwsl_notice("Creating Vhost '%s' %s, %d protocols, IPv6 %s\n",
-			    vh->name, buf, vh->count_protocols,
-			    LWS_IPV6_ENABLED(vh) ? "on" : "off");
+				vh->name, buf, vh->count_protocols,
+				LWS_IPV6_ENABLED(vh) ? "on" : "off");
 	}
 	mounts = info->mounts;
 	while (mounts) {
@@ -667,7 +833,7 @@ lws_create_vhost(struct lws_context *context,
 		lwsl_err("%s: lws_context_init_client_ssl failed\n", __func__);
 		goto bail1;
 	}
-	lws_context_lock(context, "create_vhost");
+	lws_context_lock(context);
 	n = _lws_vhost_init_server(info, vh);
 	lws_context_unlock(context);
 	if (n < 0) {
@@ -675,6 +841,7 @@ lws_create_vhost(struct lws_context *context,
 		goto bail1;
 	}
 
+
 	while (1) {
 		if (!(*vh1)) {
 			*vh1 = vh;
@@ -695,6 +862,7 @@ lws_create_vhost(struct lws_context *context,
 
 bail1:
 	lws_vhost_destroy(vh);
+	lws_vhost_destroy2(vh);
 
 	return NULL;
 
@@ -759,7 +927,7 @@ lws_create_event_pipes(struct lws_context *context)
 
 		wsi = lws_zalloc(sizeof(*wsi), "event pipe wsi");
 		if (!wsi) {
-			lwsl_err("%s: Out of mem\n", __func__);
+			lwsl_err("Out of mem\n");
 			return 1;
 		}
 		wsi->context = context;
@@ -787,8 +955,7 @@ lws_create_event_pipes(struct lws_context *context)
 		lwsl_debug("event pipe fd %d\n", wsi->desc.sockfd);
 
 		if (context->event_loop_ops->accept)
-			if (context->event_loop_ops->accept(wsi))
-				return 1;
+			context->event_loop_ops->accept(wsi);
 
 		if (__insert_wsi_socket_into_fds(context, wsi))
 			return 1;
@@ -806,7 +973,6 @@ lws_destroy_event_pipe(struct lws *wsi)
 	if (wsi->context->event_loop_ops->wsi_logical_close) {
 		wsi->context->event_loop_ops->wsi_logical_close(wsi);
 		lws_plat_pipe_close(wsi);
-		wsi->context->count_wsi_allocated--;
 		return;
 	}
 
@@ -830,8 +996,13 @@ lws_create_context(const struct lws_context_creation_info *info)
 	struct rlimit rt;
 #endif
 
+
+
 	lwsl_info("Initial logging level %d\n", log_level);
 	lwsl_info("Libwebsockets version: %s\n", library_version);
+#if defined(GCC_VER)
+	lwsl_info("Compiled with  %s\n", GCC_VER);
+#endif
 
 #ifdef LWS_WITH_IPV6
 	if (!lws_check_opt(info->options, LWS_SERVER_OPTION_DISABLE_IPV6))
@@ -882,7 +1053,7 @@ lws_create_context(const struct lws_context_creation_info *info)
 #endif
 
 #if LWS_MAX_SMP > 1
-	lws_mutex_refcount_init(&context->mr);
+	pthread_mutex_init(&context->lock, NULL);
 #endif
 
 #if defined(LWS_WITH_ESP32)
@@ -1042,11 +1213,7 @@ lws_create_context(const struct lws_context_creation_info *info)
 	if (info->max_http_header_pool)
 		context->max_http_header_pool = info->max_http_header_pool;
 	else
-		if (info->max_http_header_pool2)
-			context->max_http_header_pool =
-					info->max_http_header_pool2;
-		else
-			context->max_http_header_pool = context->max_fds;
+		context->max_http_header_pool = context->max_fds;
 
 	if (info->fd_limit_per_thread)
 		context->fd_limit_per_thread = info->fd_limit_per_thread;
@@ -1084,17 +1251,16 @@ lws_create_context(const struct lws_context_creation_info *info)
 		return NULL;
 	}
 
+
 #if defined(LWS_WITH_PEER_LIMITS)
 	/* scale the peer hash table according to the max fds for the process,
 	 * so that the max list depth averages 16.  Eg, 1024 fd -> 64,
 	 * 102400 fd -> 6400
 	 */
-
 	context->pl_hash_elements =
 		(context->count_threads * context->fd_limit_per_thread) / 16;
 	context->pl_hash_table = lws_zalloc(sizeof(struct lws_peer *) *
 			context->pl_hash_elements, "peer limits hash table");
-
 	context->ip_limit_ah = info->ip_limit_ah;
 	context->ip_limit_wsi = info->ip_limit_wsi;
 #endif
@@ -1238,6 +1404,7 @@ LWS_VISIBLE LWS_EXTERN void
 lws_context_deprecate(struct lws_context *context, lws_reload_func cb)
 {
 	struct lws_vhost *vh = context->vhost_list, *vh1;
+	struct lws *wsi;
 
 	/*
 	 * "deprecation" means disable the context from accepting any new
@@ -1251,8 +1418,7 @@ lws_context_deprecate(struct lws_context *context, lws_reload_func cb)
 	/* for each vhost, close his listen socket */
 
 	while (vh) {
-		struct lws *wsi = vh->lserv_wsi;
-
+		wsi = vh->lserv_wsi;
 		if (wsi) {
 			wsi->socket_is_permanently_unusable = 1;
 			lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "ctx deprecate");
@@ -1284,29 +1450,24 @@ lws_context_is_deprecated(struct lws_context *context)
 void
 lws_vhost_destroy1(struct lws_vhost *vh)
 {
+	const struct lws_protocols *protocol = NULL;
+	struct lws_context_per_thread *pt;
+	int n, m = vh->context->count_threads;
 	struct lws_context *context = vh->context;
+	struct lws wsi;
 
 	lwsl_info("%s\n", __func__);
 
-	lws_context_lock(context, "vhost destroy 1"); /* ---------- context { */
-
 	if (vh->being_destroyed)
-		goto out;
-
-	lws_vhost_lock(vh); /* -------------- vh { */
+		return;
 
 	vh->being_destroyed = 1;
 
 	/*
-	 * PHASE 1: take down or reassign any listen wsi
-	 *
 	 * Are there other vhosts that are piggybacking on our listen socket?
 	 * If so we need to hand the listen socket off to one of the others
-	 * so it will remain open.
-	 *
-	 * If not, leave it attached to the closing vhost, the vh being marked
-	 * being_destroyed will defeat any service and it will get closed in
-	 * later phases.
+	 * so it will remain open.  If not, leave it attached to the closing
+	 * vhost and it will get closed.
 	 */
 
 	if (vh->lserv_wsi)
@@ -1327,48 +1488,46 @@ lws_vhost_destroy1(struct lws_vhost *vh)
 				 */
 				assert(v->lserv_wsi == NULL);
 				v->lserv_wsi = vh->lserv_wsi;
+				vh->lserv_wsi = NULL;
+				if (v->lserv_wsi)
+					v->lserv_wsi->vhost = v;
 
 				lwsl_notice("%s: listen skt from %s to %s\n",
 					    __func__, vh->name, v->name);
-
-				if (v->lserv_wsi) {
-					lws_vhost_unbind_wsi(vh->lserv_wsi);
-					lws_vhost_bind_wsi(v, v->lserv_wsi);
-				}
-
 				break;
 			}
 		} lws_end_foreach_ll(v, vhost_next);
 
-	lws_vhost_unlock(vh); /* } vh -------------- */
-
 	/*
-	 * lws_check_deferred_free() will notice there is a vhost that is
-	 * marked for destruction during the next 1s, for all tsi.
-	 *
-	 * It will start closing all wsi on this vhost.  When the last wsi
-	 * is closed, it will trigger lws_vhost_destroy2()
+	 * Forcibly close every wsi assoicated with this vhost.  That will
+	 * include the listen socket if it is still associated with the closing
+	 * vhost.
 	 */
 
-out:
-	lws_context_unlock(context); /* --------------------------- context { */
-}
+	while (m--) {
+		pt = &context->pt[m];
 
-void
-__lws_vhost_destroy2(struct lws_vhost *vh)
-{
-	const struct lws_protocols *protocol = NULL;
-	struct lws_context *context = vh->context;
-	struct lws_deferred_free *df;
-	struct lws wsi;
-	int n;
+		for (n = 0; (unsigned int)n < context->pt[m].fds_count; n++) {
+			struct lws *wsi = wsi_from_fd(context, pt->fds[n].fd);
+			if (!wsi)
+				continue;
+			if (wsi->vhost != vh)
+				continue;
+
+			lws_close_free_wsi(wsi,
+				LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY,
+				"vh destroy"
+				/* no protocol close */);
+			n--;
+		}
+	}
 
 	/*
 	 * destroy any pending timed events
 	 */
 
 	while (vh->timed_vh_protocol_list)
-		__lws_timed_callback_remove(vh, vh->timed_vh_protocol_list);
+		lws_timed_callback_remove(vh, vh->timed_vh_protocol_list);
 
 	/*
 	 * let the protocols destroy the per-vhost protocol objects
@@ -1376,7 +1535,7 @@ __lws_vhost_destroy2(struct lws_vhost *vh)
 
 	memset(&wsi, 0, sizeof(wsi));
 	wsi.context = vh->context;
-	wsi.vhost = vh; /* not a real bound wsi */
+	wsi.vhost = vh;
 	protocol = vh->protocols;
 	if (protocol && vh->created_vhost_protocols) {
 		n = 0;
@@ -1404,6 +1563,15 @@ __lws_vhost_destroy2(struct lws_vhost *vh)
 
 	vh->vhost_next = vh->context->vhost_pending_destruction_list;
 	vh->context->vhost_pending_destruction_list = vh;
+}
+
+static void
+lws_vhost_destroy2(struct lws_vhost *vh)
+{
+	const struct lws_protocols *protocol = NULL;
+	struct lws_context *context = vh->context;
+	struct lws_deferred_free *df;
+	int n;
 
 	lwsl_info("%s: %p\n", __func__, vh);
 
@@ -1449,7 +1617,7 @@ __lws_vhost_destroy2(struct lws_vhost *vh)
 	if (vh->protocol_vh_privs)
 		lws_free(vh->protocol_vh_privs);
 	lws_ssl_SSL_CTX_destroy(vh);
-	lws_free(vh->same_vh_protocol_heads);
+	lws_free(vh->same_vh_protocol_list);
 
 	if (context->plugin_list ||
 	    (context->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS))
@@ -1474,7 +1642,7 @@ __lws_vhost_destroy2(struct lws_vhost *vh)
 #endif
 
 #if defined(LWS_WITH_UNIX_SOCK)
-	if (LWS_UNIX_SOCK_ENABLED(vh)) {
+	if (LWS_UNIX_SOCK_ENABLED(context)) {
 		n = unlink(vh->iface);
 		if (n)
 			lwsl_info("Closing unix socket %s: errno %d\n",
@@ -1487,74 +1655,31 @@ __lws_vhost_destroy2(struct lws_vhost *vh)
 	 * they do not refer to the vhost.  So it's safe to free.
 	 */
 
-	if (vh->finalize)
-		vh->finalize(vh, vh->finalize_arg);
-
 	lwsl_info("  %s: Freeing vhost %p\n", __func__, vh);
 
 	memset(vh, 0, sizeof(*vh));
 	lws_free(vh);
 }
 
-/*
- * each service thread calls this once a second or so
- */
-
 int
-lws_check_deferred_free(struct lws_context *context, int tsi, int force)
+lws_check_deferred_free(struct lws_context *context, int force)
 {
-	struct lws_context_per_thread *pt;
-	int n;
-
-	/*
-	 * If we see a vhost is being destroyed, forcibly close every wsi on
-	 * this tsi associated with this vhost.  That will include the listen
-	 * socket if it is still associated with the closing vhost.
-	 *
-	 * For SMP, we do this once per tsi per destroyed vhost.  The reference
-	 * counting on the vhost as the bound wsi close will notice that there
-	 * are no bound wsi left, that vhost destruction can complete,
-	 * and perform it.  It doesn't matter which service thread does that
-	 * because there is nothing left using the vhost to conflict.
-	 */
-
-	lws_context_lock(context, "check deferred free"); /* ------ context { */
-
-	lws_start_foreach_ll_safe(struct lws_vhost *, v, context->vhost_list, vhost_next) {
-		if (v->being_destroyed
-#if LWS_MAX_SMP > 1
-			&& !v->close_flow_vs_tsi[tsi]
-#endif
-		) {
-
-			pt = &context->pt[tsi];
-
-			lws_pt_lock(pt, "vhost removal"); /* -------------- pt { */
-
-#if LWS_MAX_SMP > 1
-			v->close_flow_vs_tsi[tsi] = 1;
-#endif
-
-			for (n = 0; (unsigned int)n < pt->fds_count; n++) {
-				struct lws *wsi = wsi_from_fd(context, pt->fds[n].fd);
-				if (!wsi)
-					continue;
-				if (wsi->vhost != v)
-					continue;
-
-				__lws_close_free_wsi(wsi,
-					LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY,
-					"vh destroy"
-					/* no protocol close */);
-				n--;
-			}
+	struct lws_deferred_free *df;
+	time_t now = lws_now_secs();
 
-			lws_pt_unlock(pt); /* } pt -------------- */
+	lws_start_foreach_llp(struct lws_deferred_free **, pdf,
+			      context->deferred_free_list) {
+		if (force ||
+		    lws_compare_time_t(context, now, (*pdf)->deadline) > 5) {
+			df = *pdf;
+			*pdf = df->next;
+			/* finalize vh destruction */
+			lwsl_notice("deferred vh %p destroy\n", df->payload);
+			lws_vhost_destroy2(df->payload);
+			lws_free(df);
+			continue; /* after deletion we already point to next */
 		}
-	} lws_end_foreach_ll_safe(v);
-
-
-	lws_context_unlock(context); /* } context ------------------- */
+	} lws_end_foreach_llp(pdf, next);
 
 	return 0;
 }
@@ -1563,38 +1688,18 @@ LWS_VISIBLE void
 lws_vhost_destroy(struct lws_vhost *vh)
 {
 	struct lws_deferred_free *df = lws_malloc(sizeof(*df), "deferred free");
-	struct lws_context *context = vh->context;
 
 	if (!df)
 		return;
 
-	lws_context_lock(context, __func__); /* ------ context { */
-
 	lws_vhost_destroy1(vh);
 
-	if (!vh->count_bound_wsi) {
-		/*
-		 * After listen handoff, there are already no wsi bound to this
-		 * vhost by any pt: nothing can be servicing any wsi belonging
-		 * to it any more.
-		 *
-		 * Finalize the vh destruction immediately
-		 */
-		__lws_vhost_destroy2(vh);
-		lws_free(df);
-
-		goto out;
-	}
-
 	/* part 2 is deferred to allow all the handle closes to complete */
 
 	df->next = vh->context->deferred_free_list;
 	df->deadline = lws_now_secs();
 	df->payload = vh;
 	vh->context->deferred_free_list = df;
-
-out:
-	lws_context_unlock(context); /* } context ------------------- */
 }
 
 /*
@@ -1628,12 +1733,11 @@ static void
 lws_context_destroy3(struct lws_context *context)
 {
 	struct lws_context **pcontext_finalize = context->pcontext_finalize;
+	struct lws_context_per_thread *pt;
 	int n;
 
 	for (n = 0; n < context->count_threads; n++) {
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-		struct lws_context_per_thread *pt = &context->pt[n];
-#endif
+		pt = &context->pt[n];
 
 		if (context->event_loop_ops->destroy_pt)
 			context->event_loop_ops->destroy_pt(context, n);
@@ -1646,9 +1750,6 @@ lws_context_destroy3(struct lws_context *context)
 #endif
 	}
 
-	if (context->pt[0].fds)
-		lws_free_set_NULL(context->pt[0].fds);
-
 	lws_free(context);
 	lwsl_info("%s: ctx %p freed\n", __func__, context);
 
@@ -1667,13 +1768,15 @@ lws_context_destroy2(struct lws_context *context)
 #if defined(LWS_WITH_PEER_LIMITS)
 	uint32_t nu;
 #endif
+	int n;
 
 	lwsl_info("%s: ctx %p\n", __func__, context);
 
-	lws_context_lock(context, "context destroy 2"); /* ------ context { */
-
 	context->being_destroyed2 = 1;
 
+	if (context->pt[0].fds)
+		lws_free_set_NULL(context->pt[0].fds);
+
 	/*
 	 * free all the per-vhost allocations
 	 */
@@ -1681,7 +1784,7 @@ lws_context_destroy2(struct lws_context *context)
 	vh = context->vhost_list;
 	while (vh) {
 		vh1 = vh->vhost_next;
-		__lws_vhost_destroy2(vh);
+		lws_vhost_destroy2(vh);
 		vh = vh1;
 	}
 
@@ -1689,7 +1792,7 @@ lws_context_destroy2(struct lws_context *context)
 
 	while (context->vhost_pending_destruction_list)
 		/* removes itself from list */
-		__lws_vhost_destroy2(context->vhost_pending_destruction_list);
+		lws_vhost_destroy2(context->vhost_pending_destruction_list);
 
 
 	lws_stats_log_dump(context);
@@ -1713,29 +1816,22 @@ lws_context_destroy2(struct lws_context *context)
 	if (context->external_baggage_free_on_destroy)
 		free(context->external_baggage_free_on_destroy);
 
-	lws_check_deferred_free(context, 0, 1);
+	lws_check_deferred_free(context, 1);
 
 #if LWS_MAX_SMP > 1
-	lws_mutex_refcount_destroy(&context->mr);
+	pthread_mutex_destroy(&context->lock);
 #endif
 
 	if (context->event_loop_ops->destroy_context2)
 		if (context->event_loop_ops->destroy_context2(context)) {
-			lws_context_unlock(context); /* } context ----------- */
 			context->finalize_destroy_after_internal_loops_stopped = 1;
 			return;
 		}
 
-	if (!context->pt[0].event_loop_foreign) {
-		int n;
+	if (!context->pt[0].event_loop_foreign)
 		for (n = 0; n < context->count_threads; n++)
-			if (context->pt[n].inside_service) {
-				lws_context_unlock(context); /* } context --- */
+			if (context->pt[n].inside_service)
 				return;
-			}
-	}
-
-	lws_context_unlock(context); /* } context ------------------- */
 
 	lws_context_destroy3(context);
 }
@@ -1749,6 +1845,7 @@ lws_context_destroy(struct lws_context *context)
 {
 	volatile struct lws_foreign_thread_pollfd *ftp, *next;
 	volatile struct lws_context_per_thread *vpt;
+	struct lws_context_per_thread *pt;
 	struct lws_vhost *vh = NULL;
 	struct lws wsi;
 	int n, m;
@@ -1794,7 +1891,7 @@ lws_context_destroy(struct lws_context *context)
 #endif
 
 	while (m--) {
-		struct lws_context_per_thread *pt = &context->pt[m];
+		pt = &context->pt[m];
 		vpt = (volatile struct lws_context_per_thread *)pt;
 
 		ftp = vpt->foreign_pfd_list;
diff --git a/thirdparty/libwebsockets/lib/core/libwebsockets.c b/thirdparty/libwebsockets/core/libwebsockets.c
index 972422114a..58f00226f6 100644
--- a/thirdparty/libwebsockets/lib/core/libwebsockets.c
+++ b/thirdparty/libwebsockets/core/libwebsockets.c
@@ -53,42 +53,11 @@ static const char * const log_level_names[] = {
 	"CLIENT",
 	"LATENCY",
 	"USER",
-	"THREAD",
 	"?",
 	"?"
 };
 #endif
 
-#if defined (_DEBUG)
-void lwsi_set_role(struct lws *wsi, lws_wsi_state_t role)
-{
-	wsi->wsistate = (wsi->wsistate & (~LWSI_ROLE_MASK)) | role;
-
-	lwsl_debug("lwsi_set_role(%p, 0x%x)\n", wsi, wsi->wsistate);
-}
-
-void lwsi_set_state(struct lws *wsi, lws_wsi_state_t lrs)
-{
-	wsi->wsistate = (wsi->wsistate & (~LRS_MASK)) | lrs;
-
-	lwsl_debug("lwsi_set_state(%p, 0x%x)\n", wsi, wsi->wsistate);
-}
-#endif
-
-signed char char_to_hex(const char c)
-{
-	if (c >= '0' && c <= '9')
-		return c - '0';
-
-	if (c >= 'a' && c <= 'f')
-		return c - 'a' + 10;
-
-	if (c >= 'A' && c <= 'F')
-		return c - 'A' + 10;
-
-	return -1;
-}
-
 int lws_open(const char *__file, int __oflag, ...)
 {
 	va_list ap;
@@ -106,56 +75,39 @@ int lws_open(const char *__file, int __oflag, ...)
 		n = open(__file, __oflag);
 	va_end(ap);
 
-	if (n != -1 && lws_plat_apply_FD_CLOEXEC(n)) {
-		close(n);
-
-		return -1;
-	}
+	lws_plat_apply_FD_CLOEXEC(n);
 
 	return n;
 }
 
-void
-lws_vhost_bind_wsi(struct lws_vhost *vh, struct lws *wsi)
+#if defined (_DEBUG)
+void lwsi_set_role(struct lws *wsi, lws_wsi_state_t role)
 {
-	if (wsi->vhost == vh)
-		return;
-	lws_context_lock(vh->context, __func__); /* ---------- context { */
-	wsi->vhost = vh;
-	vh->count_bound_wsi++;
-	lws_context_unlock(vh->context); /* } context ---------- */
-	lwsl_info("%s: vh %s: count_bound_wsi %d\n",
-		    __func__, vh->name, vh->count_bound_wsi);
-	assert(wsi->vhost->count_bound_wsi > 0);
+	wsi->wsistate = (wsi->wsistate & (~LWSI_ROLE_MASK)) | role;
+
+	lwsl_debug("lwsi_set_role(%p, 0x%x)\n", wsi, wsi->wsistate);
 }
 
-void
-lws_vhost_unbind_wsi(struct lws *wsi)
+void lwsi_set_state(struct lws *wsi, lws_wsi_state_t lrs)
 {
-	if (!wsi->vhost)
-		return;
+	wsi->wsistate = (wsi->wsistate & (~LRS_MASK)) | lrs;
 
-	lws_context_lock(wsi->context, __func__); /* ---------- context { */
+	lwsl_debug("lwsi_set_state(%p, 0x%x)\n", wsi, wsi->wsistate);
+}
+#endif
 
-	assert(wsi->vhost->count_bound_wsi > 0);
-	wsi->vhost->count_bound_wsi--;
-	lwsl_info("%s: vh %s: count_bound_wsi %d\n", __func__,
-		  wsi->vhost->name, wsi->vhost->count_bound_wsi);
+signed char char_to_hex(const char c)
+{
+	if (c >= '0' && c <= '9')
+		return c - '0';
 
-	if (!wsi->vhost->count_bound_wsi &&
-	    wsi->vhost->being_destroyed) {
-		/*
-		 * We have closed all wsi that were bound to this vhost
-		 * by any pt: nothing can be servicing any wsi belonging
-		 * to it any more.
-		 *
-		 * Finalize the vh destruction
-		 */
-		__lws_vhost_destroy2(wsi->vhost);
-	}
-	wsi->vhost = NULL;
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
 
-	lws_context_unlock(wsi->context); /* } context ---------- */
+	if (c >= 'A' && c <= 'F')
+		return c - 'A' + 10;
+
+	return -1;
 }
 
 void
@@ -173,24 +125,13 @@ __lws_free_wsi(struct lws *wsi)
 		lws_free(wsi->user_space);
 
 	lws_buflist_destroy_all_segments(&wsi->buflist);
-	lws_buflist_destroy_all_segments(&wsi->buflist_out);
+	lws_free_set_NULL(wsi->trunc_alloc);
 	lws_free_set_NULL(wsi->udp);
 
 	if (wsi->vhost && wsi->vhost->lserv_wsi == wsi)
 		wsi->vhost->lserv_wsi = NULL;
-#if !defined(LWS_NO_CLIENT)
-	lws_dll_lws_remove(&wsi->dll_active_client_conns);
-#endif
-	wsi->context->count_wsi_allocated--;
 
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-	__lws_header_table_detach(wsi, 0);
-#endif
-	__lws_same_vh_protocol_remove(wsi);
-#if !defined(LWS_NO_CLIENT)
-	lws_client_stash_destroy(wsi);
-	lws_free_set_NULL(wsi->client_hostname_copy);
-#endif
+	// lws_peer_dump_from_wsi(wsi);
 
 	if (wsi->role_ops->destroy_role)
 		wsi->role_ops->destroy_role(wsi);
@@ -210,8 +151,7 @@ __lws_free_wsi(struct lws *wsi)
 	if (wsi->context->event_loop_ops->destroy_wsi)
 		wsi->context->event_loop_ops->destroy_wsi(wsi);
 
-	lws_vhost_unbind_wsi(wsi);
-
+	wsi->context->count_wsi_allocated--;
 	lwsl_debug("%s: %p, remaining wsi %d\n", __func__, wsi,
 			wsi->context->count_wsi_allocated);
 
@@ -387,15 +327,6 @@ __lws_set_timer_usecs(struct lws *wsi, lws_usec_t usecs)
 //	lws_dll_dump(&pt->dll_head_hrtimer, "after set_timer_usec");
 }
 
-LWS_VISIBLE lws_usec_t
-lws_now_usecs(void)
-{
-	struct timeval now;
-
-	gettimeofday(&now, NULL);
-	return (now.tv_sec * 1000000ll) + now.tv_usec;
-}
-
 LWS_VISIBLE void
 lws_set_timer_usecs(struct lws *wsi, lws_usec_t usecs)
 {
@@ -439,8 +370,7 @@ __lws_hrtimer_service(struct lws_context_per_thread *pt)
 	if (!pt->dll_head_hrtimer.next)
 		return LWS_HRTIMER_NOWAIT;
 
-	wsi = lws_container_of(pt->dll_head_hrtimer.next, struct lws,
-			       dll_hrtimer);
+	wsi = lws_container_of(pt->dll_head_hrtimer.next, struct lws, dll_hrtimer);
 
 	gettimeofday(&now, NULL);
 	t = (now.tv_sec * 1000000ll) + now.tv_usec;
@@ -459,7 +389,7 @@ __lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs)
 
 	time(&now);
 
-	lwsl_debug("%s: %p: %d secs (reason %d)\n", __func__, wsi, secs, reason);
+	lwsl_debug("%s: %p: %d secs\n", __func__, wsi, secs);
 	wsi->pending_timeout_limit = secs;
 	wsi->pending_timeout_set = now;
 	wsi->pending_timeout = reason;
@@ -478,8 +408,7 @@ lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs)
 	if (secs == LWS_TO_KILL_SYNC) {
 		lws_remove_from_timeout_list(wsi);
 		lwsl_debug("synchronously killing %p\n", wsi);
-		lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS,
-				   "to sync kill");
+		lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "to sync kill");
 		return;
 	}
 
@@ -491,10 +420,8 @@ lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs)
 	lws_pt_unlock(pt);
 }
 
-/* requires context + vh lock */
-
 int
-__lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *p)
+lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *p)
 {
 	lws_start_foreach_llp(struct lws_timed_vh_protocol **, pt,
 			      vh->timed_vh_protocol_list) {
@@ -509,30 +436,9 @@ __lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *
 	return 1;
 }
 
-int
-lws_pthread_self_to_tsi(struct lws_context *context)
-{
-#if LWS_MAX_SMP > 1
-	pthread_t ps = pthread_self();
-	struct lws_context_per_thread *pt = &context->pt[0];
-	int n;
-
-	for (n = 0; n < context->count_threads; n++) {
-		if (pthread_equal(ps, pt->self))
-			return n;
-		pt++;
-	}
-
-	return -1;
-#else
-	return 0;
-#endif
-}
-
 LWS_VISIBLE LWS_EXTERN int
-lws_timed_callback_vh_protocol(struct lws_vhost *vh,
-			       const struct lws_protocols *prot, int reason,
-			       int secs)
+lws_timed_callback_vh_protocol(struct lws_vhost *vh, const struct lws_protocols *prot,
+			       int reason, int secs)
 {
 	struct lws_timed_vh_protocol *p = (struct lws_timed_vh_protocol *)
 			lws_malloc(sizeof(*p), "timed_vh");
@@ -540,27 +446,17 @@ lws_timed_callback_vh_protocol(struct lws_vhost *vh,
 	if (!p)
 		return 1;
 
-	p->tsi_req = lws_pthread_self_to_tsi(vh->context);
-	if (p->tsi_req < 0) /* not called from a service thread --> tsi 0 */
-		p->tsi_req = 0;
-
-	lws_context_lock(vh->context, __func__); /* context ----------------- */
-
 	p->protocol = prot;
 	p->reason = reason;
 	p->time = lws_now_secs() + secs;
-
-	lws_vhost_lock(vh); /* vhost ---------------------------------------- */
 	p->next = vh->timed_vh_protocol_list;
-	vh->timed_vh_protocol_list = p;
-	lws_vhost_unlock(vh); /* -------------------------------------- vhost */
 
-	lws_context_unlock(vh->context); /* ------------------------- context */
+	vh->timed_vh_protocol_list = p;
 
 	return 0;
 }
 
-void
+static void
 lws_remove_child_from_any_parent(struct lws *wsi)
 {
 	struct lws **pwsi;
@@ -594,17 +490,15 @@ lws_remove_child_from_any_parent(struct lws *wsi)
 }
 
 int
-lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p,
-		  const char *reason)
+lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p)
 {
 //	if (wsi->protocol == p)
 //		return 0;
 	const struct lws_protocols *vp = wsi->vhost->protocols, *vpo;
 
 	if (wsi->protocol && wsi->protocol_bind_balance) {
-		wsi->protocol->callback(wsi,
-		       wsi->role_ops->protocol_unbind_cb[!!lwsi_role_server(wsi)],
-					wsi->user_space, (void *)reason, 0);
+		wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP_DROP_PROTOCOL,
+					wsi->user_space, NULL, 0);
 		wsi->protocol_bind_balance = 0;
 	}
 	if (!wsi->user_space_externally_allocated)
@@ -640,8 +534,7 @@ lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p,
 				 __func__, p, wsi->vhost->name);
 	}
 
-	if (wsi->protocol->callback(wsi, wsi->role_ops->protocol_bind_cb[
-				    !!lwsi_role_server(wsi)],
+	if (wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP_BIND_PROTOCOL,
 				    wsi->user_space, NULL, 0))
 		return 1;
 
@@ -651,8 +544,7 @@ lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p,
 }
 
 void
-__lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason,
-		     const char *caller)
+__lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason, const char *caller)
 {
 	struct lws_context_per_thread *pt;
 	struct lws *wsi1, *wsi2;
@@ -684,21 +576,20 @@ __lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason,
 		if ((int)reason != -1)
 			lws_vhost_lock(wsi->vhost);
 		lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
-				wsi->dll_client_transaction_queue_head.next) {
+					wsi->dll_client_transaction_queue_head.next) {
 			struct lws *w = lws_container_of(d, struct lws,
-						dll_client_transaction_queue);
+							 dll_client_transaction_queue);
 
 			__lws_close_free_wsi(w, -1, "trans q leader closing");
 		} lws_end_foreach_dll_safe(d, d1);
 
 		/*
-		 * !!! If we are closing, but we have pending pipelined
-		 * transaction results we already sent headers for, that's going
-		 * to destroy sync for HTTP/1 and leave H2 stream with no live
-		 * swsi.
+		 * !!! If we are closing, but we have pending pipelined transaction
+		 * results we already sent headers for, that's going to destroy sync
+		 * for HTTP/1 and leave H2 stream with no live swsi.
 		 *
-		 * However this is normal if we are being closed because the
-		 * transaction queue leader is closing.
+		 * However this is normal if we are being closed because the transaction
+		 * queue leader is closing.
 		 */
 		lws_dll_lws_remove(&wsi->dll_client_transaction_queue);
 		if ((int)reason !=-1)
@@ -714,8 +605,7 @@ __lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason,
 			wsi2->parent = NULL;
 			/* stop it doing shutdown processing */
 			wsi2->socket_is_permanently_unusable = 1;
-			__lws_close_free_wsi(wsi2, reason,
-					     "general child recurse");
+			__lws_close_free_wsi(wsi2, reason, "general child recurse");
 			wsi2 = wsi1;
 		}
 		wsi->child_list = NULL;
@@ -740,8 +630,7 @@ __lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason,
 				lws_cgi_remove_and_kill(wsi->parent);
 
 			/* end the binding between us and master */
-			wsi->parent->http.cgi->stdwsi[(int)wsi->cgi_channel] =
-									NULL;
+			wsi->parent->http.cgi->stdwsi[(int)wsi->cgi_channel] = NULL;
 		}
 		wsi->socket_is_permanently_unusable = 1;
 
@@ -785,24 +674,14 @@ __lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason,
 		goto just_kill_connection;
 
 	case LRS_FLUSHING_BEFORE_CLOSE:
-		if (lws_has_buffered_out(wsi)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-		    || wsi->http.comp_ctx.buflist_comp ||
-		    wsi->http.comp_ctx.may_have_more
-#endif
-		 ) {
+		if (wsi->trunc_len) {
 			lws_callback_on_writable(wsi);
 			return;
 		}
 		lwsl_info("%p: end LRS_FLUSHING_BEFORE_CLOSE\n", wsi);
 		goto just_kill_connection;
 	default:
-		if (lws_has_buffered_out(wsi)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-				|| wsi->http.comp_ctx.buflist_comp ||
-		    wsi->http.comp_ctx.may_have_more
-#endif
-		) {
+		if (wsi->trunc_len) {
 			lwsl_info("%p: LRS_FLUSHING_BEFORE_CLOSE\n", wsi);
 			lwsi_set_state(wsi, LRS_FLUSHING_BEFORE_CLOSE);
 			__lws_set_timeout(wsi,
@@ -816,13 +695,15 @@ __lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason,
 	    lwsi_state(wsi) == LRS_H1C_ISSUE_HANDSHAKE)
 		goto just_kill_connection;
 
-	if (!wsi->told_user_closed && wsi->user_space && wsi->protocol &&
-	    wsi->protocol_bind_balance) {
-		wsi->protocol->callback(wsi,
-				wsi->role_ops->protocol_unbind_cb[
-				       !!lwsi_role_server(wsi)],
-				       wsi->user_space, (void *)__func__, 0);
-		wsi->protocol_bind_balance = 0;
+	if (!wsi->told_user_closed && lwsi_role_http(wsi) &&
+	    lwsi_role_server(wsi)) {
+		if (wsi->user_space && wsi->protocol &&
+		    wsi->protocol_bind_balance) {
+			wsi->protocol->callback(wsi,
+						LWS_CALLBACK_HTTP_DROP_PROTOCOL,
+					       wsi->user_space, NULL, 0);
+			wsi->protocol_bind_balance = 0;
+		}
 	}
 
 	/*
@@ -853,10 +734,8 @@ just_kill_connection:
 	    wsi->protocol_bind_balance) {
 		lwsl_debug("%s: %p: DROP_PROTOCOL %s\n", __func__, wsi,
 		       wsi->protocol->name);
-		wsi->protocol->callback(wsi,
-				wsi->role_ops->protocol_unbind_cb[
-				       !!lwsi_role_server(wsi)],
-				       wsi->user_space, (void *)__func__, 0);
+		wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP_DROP_PROTOCOL,
+				        wsi->user_space, NULL, 0);
 		wsi->protocol_bind_balance = 0;
 	}
 
@@ -893,7 +772,7 @@ just_kill_connection:
 	} else
 #endif
 		{
-			lwsl_info("%s: shutdown conn: %p (sk %d, state 0x%x)\n",
+			lwsl_info("%s: shutdown conn: %p (sock %d, state 0x%x)\n",
 				  __func__, wsi, (int)(long)wsi->desc.sockfd,
 				  lwsi_state(wsi));
 			if (!wsi->socket_is_permanently_unusable &&
@@ -929,16 +808,12 @@ just_kill_connection:
 	lwsl_debug("%s: real just_kill_connection: %p (sockfd %d)\n", __func__,
 		   wsi, wsi->desc.sockfd);
 	
-#ifdef LWS_WITH_HUBBUB
+#ifdef LWS_WITH_HTTP_PROXY
 	if (wsi->http.rw) {
 		lws_rewrite_destroy(wsi->http.rw);
 		wsi->http.rw = NULL;
 	}
 #endif
-
-	if (wsi->http.pending_return_headers)
-		lws_free_set_NULL(wsi->http.pending_return_headers);
-
 	/*
 	 * we won't be servicing or receiving anything further from this guy
 	 * delete socket from the internal poll list if still present
@@ -955,7 +830,7 @@ just_kill_connection:
 	if (wsi->desc.sockfd != LWS_SOCK_INVALID)
 		__remove_wsi_socket_from_fds(wsi);
 	else
-		__lws_same_vh_protocol_remove(wsi);
+		lws_same_vh_protocol_remove(wsi);
 
 	lwsi_set_state(wsi, LRS_DEAD_SOCKET);
 	lws_buflist_destroy_all_segments(&wsi->buflist);
@@ -966,9 +841,7 @@ just_kill_connection:
 
 	/* tell the user it's all over for this guy */
 
-	if ((lwsi_state_est_PRE_CLOSE(wsi) ||
-	     lwsi_state_PRE_CLOSE(wsi) == LRS_WAITING_SERVER_REPLY) &&
-	    !wsi->told_user_closed &&
+	if (lwsi_state_est_PRE_CLOSE(wsi) && !wsi->told_user_closed &&
 	    wsi->role_ops->close_cb[lwsi_role_server(wsi)]) {
 		const struct lws_protocols *pro = wsi->protocol;
 
@@ -1004,9 +877,7 @@ __lws_close_free_wsi_final(struct lws *wsi)
 {
 	int n;
 
-	if (!wsi->shadow &&
-	    lws_socket_is_valid(wsi->desc.sockfd) && !lws_ssl_close(wsi)) {
-		lwsl_debug("%s: wsi %p: fd %d\n", __func__, wsi, wsi->desc.sockfd);
+	if (lws_socket_is_valid(wsi->desc.sockfd) && !lws_ssl_close(wsi)) {
 		n = compatible_close(wsi->desc.sockfd);
 		if (n)
 			lwsl_debug("closing: close ret %d\n", LWS_ERRNO);
@@ -1073,7 +944,8 @@ lws_buflist_append_segment(struct lws_buflist **head, const uint8_t *buf,
 
 	lwsl_info("%s: len %u first %d %p\n", __func__, (uint32_t)len, first, p);
 
-	nbuf = (struct lws_buflist *)lws_malloc(sizeof(**head) + len, __func__);
+	nbuf = (struct lws_buflist *)
+			lws_malloc(sizeof(**head) + len, __func__);
 	if (!nbuf) {
 		lwsl_err("%s: OOM\n", __func__);
 		return -1;
@@ -1307,6 +1179,9 @@ lws_get_peer_simple(struct lws *wsi, char *name, int namelen)
 
 	wsi = lws_get_network_wsi(wsi);
 
+	if (wsi->parent_carries_io)
+		wsi = wsi->parent;
+
 #ifdef LWS_WITH_IPV6
 	if (LWS_IPV6_ENABLED(wsi->vhost)) {
 		len = sizeof(sin6);
@@ -1423,11 +1298,7 @@ lws_get_network_wsi(struct lws *wsi)
 		return NULL;
 
 #if defined(LWS_WITH_HTTP2)
-	if (!wsi->http2_substream
-#if !defined(LWS_NO_CLIENT)
-			&& !wsi->client_h2_substream
-#endif
-	)
+	if (!wsi->http2_substream && !wsi->client_h2_substream)
 		return wsi;
 
 	while (wsi->h2.parent_wsi)
@@ -1525,7 +1396,7 @@ lws_callback_vhost_protocols_vhost(struct lws_vhost *vh, int reason, void *in,
 	struct lws *wsi = lws_zalloc(sizeof(*wsi), "fake wsi");
 
 	wsi->context = vh->context;
-	lws_vhost_bind_wsi(vh, wsi);
+	wsi->vhost = vh;
 
 	for (n = 0; n < wsi->vhost->count_protocols; n++) {
 		wsi->protocol = &vh->protocols[n];
@@ -1615,8 +1486,8 @@ lws_vfs_select_fops(const struct lws_plat_file_ops *fops, const char *vfs_path,
 			while (n < (int)LWS_ARRAY_SIZE(pf->fi) && pf->fi[n].sig) {
 				if (p >= vfs_path + pf->fi[n].len)
 					if (!strncmp(p - (pf->fi[n].len - 1),
-						     pf->fi[n].sig,
-						     pf->fi[n].len - 1)) {
+						    pf->fi[n].sig,
+						    pf->fi[n].len - 1)) {
 						*vpath = p + 1;
 						return pf;
 					}
@@ -1686,7 +1557,7 @@ lws_latency(struct lws_context *context, struct lws *wsi, const char *action,
 	unsigned long long u;
 	char buf[256];
 
-	u = lws_time_in_microseconds();
+	u = time_in_microseconds();
 
 	if (!action) {
 		wsi->latency_start = u;
@@ -1754,8 +1625,7 @@ lws_rx_flow_control(struct lws *wsi, int _enable)
 	    wsi->rxflow_change_to)
 		goto skip;
 
-	wsi->rxflow_change_to = LWS_RXFLOW_PENDING_CHANGE |
-				(!wsi->rxflow_bitmap);
+	wsi->rxflow_change_to = LWS_RXFLOW_PENDING_CHANGE | !wsi->rxflow_bitmap;
 
 	lwsl_info("%s: %p: bitmap 0x%x: en 0x%x, ch 0x%x\n", __func__, wsi,
 		  wsi->rxflow_bitmap, en, wsi->rxflow_change_to);
@@ -1806,7 +1676,7 @@ lws_broadcast(struct lws_context *context, int reason, void *in, size_t len)
 
 	while (v) {
 		const struct lws_protocols *p = v->protocols;
-		wsi.vhost = v; /* not a real bound wsi */
+		wsi.vhost = v;
 
 		for (n = 0; n < v->count_protocols; n++) {
 			wsi.protocol = p;
@@ -1896,9 +1766,7 @@ lws_set_proxy(struct lws_vhost *vhost, const char *proxy)
 
 		lwsl_info(" Proxy auth in use\n");
 
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 		proxy = p + 1;
-#endif
 	} else
 		vhost->proxy_basic_auth_token[0] = '\0';
 
@@ -2045,9 +1913,7 @@ LWS_VISIBLE int
 lwsl_timestamp(int level, char *p, int len)
 {
 #ifndef LWS_PLAT_OPTEE
-#ifndef _WIN32_WCE
 	time_t o_now = time(NULL);
-#endif
 	unsigned long long now;
 	struct tm *ptm = NULL;
 #ifndef WIN32
@@ -2067,7 +1933,7 @@ lwsl_timestamp(int level, char *p, int len)
 	for (n = 0; n < LLL_COUNT; n++) {
 		if (level != (1 << n))
 			continue;
-		now = lws_time_in_microseconds() / 100;
+		now = time_in_microseconds() / 100;
 		if (ptm)
 			n = lws_snprintf(p, len,
 				"[%04d/%02d/%02d %02d:%02d:%02d:%04d] %s: ",
@@ -2104,15 +1970,12 @@ static const char * const colours[] = {
 	"[33m", /* LLL_CLIENT */
 	"[33;1m", /* LLL_LATENCY */
 	"[30;1m", /* LLL_USER */
-	"[31m", /* LLL_THREAD */
 };
 
-static char tty;
-
-LWS_VISIBLE void
-lwsl_emit_stderr(int level, const char *line)
+LWS_VISIBLE void lwsl_emit_stderr(int level, const char *line)
 {
 	char buf[50];
+	static char tty = 3;
 	int n, m = LWS_ARRAY_SIZE(colours) - 1;
 
 	if (!tty)
@@ -2131,28 +1994,6 @@ lwsl_emit_stderr(int level, const char *line)
 	} else
 		fprintf(stderr, "%s%s", buf, line);
 }
-
-LWS_VISIBLE void
-lwsl_emit_stderr_notimestamp(int level, const char *line)
-{
-	int n, m = LWS_ARRAY_SIZE(colours) - 1;
-
-	if (!tty)
-		tty = isatty(2) | 2;
-
-	if (tty == 3) {
-		n = 1 << (LWS_ARRAY_SIZE(colours) - 1);
-		while (n) {
-			if (level & n)
-				break;
-			m--;
-			n >>= 1;
-		}
-		fprintf(stderr, "%c%s%s%c[0m", 27, colours[m], line, 27);
-	} else
-		fprintf(stderr, "%s", line);
-}
-
 #endif
 
 LWS_VISIBLE void _lws_logv(int filter, const char *format, va_list vl)
@@ -2166,14 +2007,8 @@ LWS_VISIBLE void _lws_logv(int filter, const char *format, va_list vl)
 	n = vsnprintf(buf, sizeof(buf) - 1, format, vl);
 	(void)n;
 	/* vnsprintf returns what it would have written, even if truncated */
-	if (n > (int)sizeof(buf) - 1) {
-		n = sizeof(buf) - 5;
-		buf[n++] = '.';
-		buf[n++] = '.';
-		buf[n++] = '.';
-		buf[n++] = '\n';
-		buf[n] = '\0';
-	}
+	if (n > (int)sizeof(buf) - 1)
+		n = sizeof(buf) - 1;
 	if (n > 0)
 		buf[n] = '\0';
 
@@ -2206,7 +2041,9 @@ LWS_VISIBLE void
 lwsl_hexdump_level(int hexdump_level, const void *vbuf, size_t len)
 {
 	unsigned char *buf = (unsigned char *)vbuf;
-	unsigned int n;
+	unsigned int n, m, start;
+	char line[80];
+	char *p;
 
 	if (!lwsl_visible(hexdump_level))
 		return;
@@ -2220,8 +2057,8 @@ lwsl_hexdump_level(int hexdump_level, const void *vbuf, size_t len)
 	_lws_log(hexdump_level, "\n");
 
 	for (n = 0; n < len;) {
-		unsigned int start = n, m;
-		char line[80], *p = line;
+		start = n;
+		p = line;
 
 		p += sprintf(p, "%04X: ", start);
 
@@ -2280,7 +2117,7 @@ lws_get_ssl(struct lws *wsi)
 LWS_VISIBLE int
 lws_partial_buffered(struct lws *wsi)
 {
-	return lws_has_buffered_out(wsi);
+	return !!wsi->trunc_len;
 }
 
 LWS_VISIBLE lws_fileofs_t
@@ -2293,7 +2130,7 @@ lws_get_peer_write_allowance(struct lws *wsi)
 
 LWS_VISIBLE void
 lws_role_transition(struct lws *wsi, enum lwsi_role role, enum lwsi_state state,
-		    struct lws_role_ops *ops)
+		struct lws_role_ops *ops)
 {
 #if defined(_DEBUG)
 	const char *name = "(unset)";
@@ -2355,6 +2192,12 @@ lws_get_child(const struct lws *wsi)
 	return wsi->child_list;
 }
 
+LWS_VISIBLE LWS_EXTERN void
+lws_set_parent_carries_io(struct lws *wsi)
+{
+	wsi->parent_carries_io = 1;
+}
+
 LWS_VISIBLE LWS_EXTERN void *
 lws_get_opaque_parent_data(const struct lws *wsi)
 {
@@ -2414,7 +2257,7 @@ __lws_rx_flow_control(struct lws *wsi)
 	wsi->rxflow_change_to &= ~LWS_RXFLOW_PENDING_CHANGE;
 
 	lwsl_info("rxflow: wsi %p change_to %d\n", wsi,
-		  wsi->rxflow_change_to & LWS_RXFLOW_ALLOW);
+			      wsi->rxflow_change_to & LWS_RXFLOW_ALLOW);
 
 	/* adjust the pollfd for this wsi */
 
@@ -2430,60 +2273,36 @@ __lws_rx_flow_control(struct lws *wsi)
 	return 0;
 }
 
-static const unsigned char e0f4[] = {
-	0xa0 | ((2 - 1) << 2) | 1, /* e0 */
-	0x80 | ((4 - 1) << 2) | 1, /* e1 */
-	0x80 | ((4 - 1) << 2) | 1, /* e2 */
-	0x80 | ((4 - 1) << 2) | 1, /* e3 */
-	0x80 | ((4 - 1) << 2) | 1, /* e4 */
-	0x80 | ((4 - 1) << 2) | 1, /* e5 */
-	0x80 | ((4 - 1) << 2) | 1, /* e6 */
-	0x80 | ((4 - 1) << 2) | 1, /* e7 */
-	0x80 | ((4 - 1) << 2) | 1, /* e8 */
-	0x80 | ((4 - 1) << 2) | 1, /* e9 */
-	0x80 | ((4 - 1) << 2) | 1, /* ea */
-	0x80 | ((4 - 1) << 2) | 1, /* eb */
-	0x80 | ((4 - 1) << 2) | 1, /* ec */
-	0x80 | ((2 - 1) << 2) | 1, /* ed */
-	0x80 | ((4 - 1) << 2) | 1, /* ee */
-	0x80 | ((4 - 1) << 2) | 1, /* ef */
-	0x90 | ((3 - 1) << 2) | 2, /* f0 */
-	0x80 | ((4 - 1) << 2) | 2, /* f1 */
-	0x80 | ((4 - 1) << 2) | 2, /* f2 */
-	0x80 | ((4 - 1) << 2) | 2, /* f3 */
-	0x80 | ((1 - 1) << 2) | 2, /* f4 */
-
-	0,			   /* s0 */
-	0x80 | ((4 - 1) << 2) | 0, /* s2 */
-	0x80 | ((4 - 1) << 2) | 1, /* s3 */
-};
-
-LWS_EXTERN int
-lws_check_byte_utf8(unsigned char state, unsigned char c)
-{
-	unsigned char s = state;
-
-	if (!s) {
-		if (c >= 0x80) {
-			if (c < 0xc2 || c > 0xf4)
-				return -1;
-			if (c < 0xe0)
-				return 0x80 | ((4 - 1) << 2);
-			else
-				return e0f4[c - 0xe0];
-		}
-
-		return s;
-	}
-	if (c < (s & 0xf0) || c >= (s & 0xf0) + 0x10 + ((s << 2) & 0x30))
-		return -1;
-
-	return e0f4[21 + (s & 3)];
-}
-
 LWS_EXTERN int
 lws_check_utf8(unsigned char *state, unsigned char *buf, size_t len)
 {
+	static const unsigned char e0f4[] = {
+		0xa0 | ((2 - 1) << 2) | 1, /* e0 */
+		0x80 | ((4 - 1) << 2) | 1, /* e1 */
+		0x80 | ((4 - 1) << 2) | 1, /* e2 */
+		0x80 | ((4 - 1) << 2) | 1, /* e3 */
+		0x80 | ((4 - 1) << 2) | 1, /* e4 */
+		0x80 | ((4 - 1) << 2) | 1, /* e5 */
+		0x80 | ((4 - 1) << 2) | 1, /* e6 */
+		0x80 | ((4 - 1) << 2) | 1, /* e7 */
+		0x80 | ((4 - 1) << 2) | 1, /* e8 */
+		0x80 | ((4 - 1) << 2) | 1, /* e9 */
+		0x80 | ((4 - 1) << 2) | 1, /* ea */
+		0x80 | ((4 - 1) << 2) | 1, /* eb */
+		0x80 | ((4 - 1) << 2) | 1, /* ec */
+		0x80 | ((2 - 1) << 2) | 1, /* ed */
+		0x80 | ((4 - 1) << 2) | 1, /* ee */
+		0x80 | ((4 - 1) << 2) | 1, /* ef */
+		0x90 | ((3 - 1) << 2) | 2, /* f0 */
+		0x80 | ((4 - 1) << 2) | 2, /* f1 */
+		0x80 | ((4 - 1) << 2) | 2, /* f2 */
+		0x80 | ((4 - 1) << 2) | 2, /* f3 */
+		0x80 | ((1 - 1) << 2) | 2, /* f4 */
+
+		0,			   /* s0 */
+		0x80 | ((4 - 1) << 2) | 0, /* s2 */
+		0x80 | ((4 - 1) << 2) | 1, /* s3 */
+	};
 	unsigned char s = *state;
 
 	while (len--) {
@@ -2516,7 +2335,7 @@ lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
 	      const char **path)
 {
 	const char *end;
-	char unix_skt = 0;
+	static const char *slash = "/";
 
 	/* cut up the location into address, port and path */
 	*prot = p;
@@ -2530,32 +2349,32 @@ lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
 		*p = '\0';
 		p += 3;
 	}
-	if (*p == '+') /* unix skt */
-		unix_skt = 1;
-
 	*ads = p;
 	if (!strcmp(*prot, "http") || !strcmp(*prot, "ws"))
 		*port = 80;
 	else if (!strcmp(*prot, "https") || !strcmp(*prot, "wss"))
 		*port = 443;
 
-	if (*p == '[') {
-		++(*ads);
-		while (*p && *p != ']')
-			p++;
-		if (*p)
-			*p++ = '\0';
-	} else
-		while (*p && *p != ':' && (unix_skt || *p != '/'))
-			p++;
-
+       if (*p == '[')
+       {
+               ++(*ads);
+               while (*p && *p != ']')
+                       p++;
+               if (*p)
+                       *p++ = '\0';
+       }
+       else
+       {
+               while (*p && *p != ':' && *p != '/')
+                       p++;
+       }
 	if (*p == ':') {
 		*p++ = '\0';
 		*port = atoi(p);
 		while (*p && *p != '/')
 			p++;
 	}
-	*path = "/";
+	*path = slash;
 	if (*p) {
 		*p++ = '\0';
 		if (*p)
@@ -2565,17 +2384,6 @@ lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
 	return 0;
 }
 
-char *
-lws_strdup(const char *s)
-{
-	char *d = lws_malloc(strlen(s) + 1, "strdup");
-
-	if (d)
-		strcpy(d, s);
-
-	return d;
-}
-
 #if defined(LWS_WITHOUT_EXTENSIONS)
 
 /* we need to provide dummy callbacks for internal exts
@@ -2609,14 +2417,6 @@ lws_set_extension_option(struct lws *wsi, const char *ext_name,
 }
 #endif
 
-/* note: this returns a random port, or one of these <= 0 return codes:
- *
- * LWS_ITOSA_USABLE:     the interface is usable, returned if so and sockfd invalid
- * LWS_ITOSA_NOT_EXIST:  the requested iface does not even exist
- * LWS_ITOSA_NOT_USABLE: the requested iface exists but is not usable (eg, no IP)
- * LWS_ITOSA_BUSY:       the port at the requested iface + port is already in use
- */
-
 LWS_EXTERN int
 lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 		const char *iface)
@@ -2638,26 +2438,22 @@ lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 	struct sockaddr_storage sin;
 	struct sockaddr *v;
 
-	memset(&sin, 0, sizeof(sin));
-
-#if defined(LWS_WITH_UNIX_SOCK)
+#ifdef LWS_WITH_UNIX_SOCK
 	if (LWS_UNIX_SOCK_ENABLED(vhost)) {
 		v = (struct sockaddr *)&serv_unix;
 		n = sizeof(struct sockaddr_un);
 		bzero((char *) &serv_unix, sizeof(serv_unix));
 		serv_unix.sun_family = AF_UNIX;
 		if (!iface)
-			return LWS_ITOSA_NOT_EXIST;
+			return -1;
 		if (sizeof(serv_unix.sun_path) <= strlen(iface)) {
 			lwsl_err("\"%s\" too long for UNIX domain socket\n",
 			         iface);
-			return LWS_ITOSA_NOT_EXIST;
+			return -1;
 		}
 		strcpy(serv_unix.sun_path, iface);
 		if (serv_unix.sun_path[0] == '@')
 			serv_unix.sun_path[0] = '\0';
-		else
-			unlink(serv_unix.sun_path);
 
 	} else
 #endif
@@ -2692,8 +2488,8 @@ lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 		bzero((char *) &serv_addr4, sizeof(serv_addr4));
 		serv_addr4.sin_addr.s_addr = INADDR_ANY;
 		serv_addr4.sin_family = AF_INET;
-
 #if !defined(LWS_WITH_ESP32)
+
 		if (iface) {
 		    m = interface_to_sa(vhost, iface,
 				    (struct sockaddr_in *)v, n);
@@ -2714,38 +2510,22 @@ lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
 
 	/* just checking for the interface extant */
 	if (sockfd == LWS_SOCK_INVALID)
-		return LWS_ITOSA_USABLE;
+		return 0;
 
 	n = bind(sockfd, v, n);
 #ifdef LWS_WITH_UNIX_SOCK
 	if (n < 0 && LWS_UNIX_SOCK_ENABLED(vhost)) {
 		lwsl_err("ERROR on binding fd %d to \"%s\" (%d %d)\n",
-			 sockfd, iface, n, LWS_ERRNO);
-		return LWS_ITOSA_NOT_EXIST;
+				sockfd, iface, n, LWS_ERRNO);
+		return -1;
 	} else
 #endif
 	if (n < 0) {
 		lwsl_err("ERROR on binding fd %d to port %d (%d %d)\n",
-			 sockfd, port, n, LWS_ERRNO);
-
-		/* if something already listening, tell caller to fail permanently */
-
-		if (LWS_ERRNO == LWS_EADDRINUSE)
-			return LWS_ITOSA_BUSY;
-
-		/* otherwise ask caller to retry later */
-
-		return LWS_ITOSA_NOT_EXIST;
+				sockfd, port, n, LWS_ERRNO);
+		return -1;
 	}
 
-#if defined(LWS_WITH_UNIX_SOCK)
-	if (LWS_UNIX_SOCK_ENABLED(vhost) && vhost->context->uid)
-		if (chown(serv_unix.sun_path, vhost->context->uid,
-			  vhost->context->gid))
-			lwsl_notice("%s: chown for unix skt %s failed\n",
-				    __func__, serv_unix.sun_path);
-#endif
-
 #ifndef LWS_PLAT_OPTEE
 	if (getsockname(sockfd, (struct sockaddr *)&sin, &len) == -1)
 		lwsl_warn("getsockname: %s\n", strerror(LWS_ERRNO));
@@ -2820,7 +2600,7 @@ lws_get_addr_scope(const char *ipaddr)
 	for (i = 0; i < 5; i++)
 	{
 		ret = GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX,
-					   NULL, addrs, &size);
+				NULL, addrs, &size);
 		if ((ret == NO_ERROR) || (ret == ERROR_NO_DATA)) {
 			break;
 		} else if (ret == ERROR_BUFFER_OVERFLOW)
@@ -2873,6 +2653,73 @@ lws_get_addr_scope(const char *ipaddr)
 }
 #endif
 
+#if !defined(LWS_NO_SERVER)
+
+LWS_EXTERN struct lws *
+lws_create_adopt_udp(struct lws_vhost *vhost, int port, int flags,
+		     const char *protocol_name, struct lws *parent_wsi)
+{
+	lws_sock_file_fd_type sock;
+	struct addrinfo h, *r, *rp;
+	struct lws *wsi = NULL;
+	char buf[16];
+	int n;
+
+	memset(&h, 0, sizeof(h));
+	h.ai_family = AF_UNSPEC;    /* Allow IPv4 or IPv6 */
+	h.ai_socktype = SOCK_DGRAM;
+	h.ai_protocol = IPPROTO_UDP;
+	h.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
+
+	lws_snprintf(buf, sizeof(buf), "%u", port);
+	n = getaddrinfo(NULL, buf, &h, &r);
+	if (n) {
+		lwsl_info("%s: getaddrinfo error: %s\n", __func__,
+			  gai_strerror(n));
+		goto bail;
+	}
+
+	for (rp = r; rp; rp = rp->ai_next) {
+		sock.sockfd = socket(rp->ai_family, rp->ai_socktype,
+				     rp->ai_protocol);
+		if (sock.sockfd >= 0)
+			break;
+	}
+	if (!rp) {
+		lwsl_err("%s: unable to create INET socket\n", __func__);
+		goto bail1;
+	}
+
+	if ((flags & LWS_CAUDP_BIND) && bind(sock.sockfd, rp->ai_addr,
+#if defined(_WIN32)
+			    (int)rp->ai_addrlen
+#else
+			    rp->ai_addrlen
+#endif
+	   ) == -1) {
+		lwsl_err("%s: bind failed\n", __func__);
+		goto bail2;
+	}
+
+	wsi = lws_adopt_descriptor_vhost(vhost, LWS_ADOPT_RAW_SOCKET_UDP, sock,
+				        protocol_name, parent_wsi);
+	if (!wsi)
+		lwsl_err("%s: udp adoption failed\n", __func__);
+
+bail2:
+	if (!wsi)
+		close((int)sock.sockfd);
+bail1:
+	freeaddrinfo(r);
+
+bail:
+	return wsi;
+}
+
+#endif
+
+
+
 static const char *hex = "0123456789ABCDEF";
 
 LWS_VISIBLE LWS_EXTERN const char *
@@ -2907,27 +2754,6 @@ lws_json_purify(char *escaped, const char *string, int len)
 	}
 
 	while (*p && len-- > 6) {
-		if (*p == '\t') {
-			p++;
-			*q++ = '\\';
-			*q++ = 't';
-			continue;
-		}
-
-		if (*p == '\n') {
-			p++;
-			*q++ = '\\';
-			*q++ = 'n';
-			continue;
-		}
-
-		if (*p == '\r') {
-			p++;
-			*q++ = '\\';
-			*q++ = 'r';
-			continue;
-		}
-
 		if (*p == '\"' || *p == '\\' || *p < 0x20) {
 			*q++ = '\\';
 			*q++ = 'u';
@@ -3064,13 +2890,6 @@ lws_finalize_startup(struct lws_context *context)
 	return 0;
 }
 
-LWS_VISIBLE LWS_EXTERN void
-lws_get_effective_uid_gid(struct lws_context *context, int *uid, int *gid)
-{
-	*uid = context->uid;
-	*gid = context->gid;
-}
-
 int
 lws_snprintf(char *str, size_t size, const char *format, ...)
 {
@@ -3100,316 +2919,6 @@ lws_strncpy(char *dest, const char *src, size_t size)
 }
 
 
-typedef enum {
-	LWS_TOKZS_LEADING_WHITESPACE,
-	LWS_TOKZS_QUOTED_STRING,
-	LWS_TOKZS_TOKEN,
-	LWS_TOKZS_TOKEN_POST_TERMINAL
-} lws_tokenize_state;
-
-int
-lws_tokenize(struct lws_tokenize *ts)
-{
-	const char *rfc7230_delims = "(),/:;<=>?@[\\]{}";
-	lws_tokenize_state state = LWS_TOKZS_LEADING_WHITESPACE;
-	char c, flo = 0, d_minus = '-', d_dot = '.', s_minus = '\0',
-	     s_dot = '\0';
-	signed char num = -1;
-	int utf8 = 0;
-
-	/* for speed, compute the effect of the flags outside the loop */
-
-	if (ts->flags & LWS_TOKENIZE_F_MINUS_NONTERM) {
-		d_minus = '\0';
-		s_minus = '-';
-	}
-	if (ts->flags & LWS_TOKENIZE_F_DOT_NONTERM) {
-		d_dot = '\0';
-		s_dot = '.';
-	}
-
-	ts->token = NULL;
-	ts->token_len = 0;
-
-	while (ts->len) {
-		c = *ts->start++;
-		ts->len--;
-
-		utf8 = lws_check_byte_utf8((unsigned char)utf8, c);
-		if (utf8 < 0)
-			return LWS_TOKZE_ERR_BROKEN_UTF8;
-
-		if (!c)
-			break;
-
-		/* whitespace */
-
-		if (c == ' ' || c == '\t' || c == '\n' || c == '\r' ||
-		    c == '\f') {
-			switch (state) {
-			case LWS_TOKZS_LEADING_WHITESPACE:
-			case LWS_TOKZS_TOKEN_POST_TERMINAL:
-				continue;
-			case LWS_TOKZS_QUOTED_STRING:
-				ts->token_len++;
-				continue;
-			case LWS_TOKZS_TOKEN:
-				/* we want to scan forward to look for = */
-
-				state = LWS_TOKZS_TOKEN_POST_TERMINAL;
-				continue;
-			}
-		}
-
-		/* quoted string */
-
-		if (c == '\"') {
-			if (state == LWS_TOKZS_QUOTED_STRING)
-				return LWS_TOKZE_QUOTED_STRING;
-
-			/* starting a quoted string */
-
-			if (ts->flags & LWS_TOKENIZE_F_COMMA_SEP_LIST) {
-				if (ts->delim == LWSTZ_DT_NEED_DELIM)
-					return LWS_TOKZE_ERR_COMMA_LIST;
-				ts->delim = LWSTZ_DT_NEED_DELIM;
-			}
-
-			state = LWS_TOKZS_QUOTED_STRING;
-			ts->token = ts->start;
-			ts->token_len = 0;
-
-			continue;
-		}
-
-		/* token= aggregation */
-
-		if (c == '=' && (state == LWS_TOKZS_TOKEN_POST_TERMINAL ||
-				 state == LWS_TOKZS_TOKEN)) {
-			if (num == 1)
-				return LWS_TOKZE_ERR_NUM_ON_LHS;
-			/* swallow the = */
-			return LWS_TOKZE_TOKEN_NAME_EQUALS;
-		}
-
-		/* optional token: aggregation */
-
-		if ((ts->flags & LWS_TOKENIZE_F_AGG_COLON) && c == ':' &&
-		    (state == LWS_TOKZS_TOKEN_POST_TERMINAL ||
-		     state == LWS_TOKZS_TOKEN))
-			/* swallow the : */
-			return LWS_TOKZE_TOKEN_NAME_COLON;
-
-		/* aggregate . in a number as a float */
-
-		if (c == '.' && !(ts->flags & LWS_TOKENIZE_F_NO_FLOATS) &&
-		    state == LWS_TOKZS_TOKEN && num == 1) {
-			if (flo)
-				return LWS_TOKZE_ERR_MALFORMED_FLOAT;
-			flo = 1;
-			ts->token_len++;
-			continue;
-		}
-
-		/*
-		 * Delimiter... by default anything that:
-		 *
-		 *  - isn't matched earlier, or
-		 *  - is [A-Z, a-z, 0-9, _], and
-		 *  - is not a partial utf8 char
-		 *
-		 * is a "delimiter", it marks the end of a token and is itself
-		 * reported as a single LWS_TOKZE_DELIMITER each time.
-		 *
-		 * However with LWS_TOKENIZE_F_RFC7230_DELIMS flag, tokens may
-		 * contain any noncontrol character that isn't defined in
-		 * rfc7230_delims, and only characters listed there are treated
-		 * as delimiters.
-		 */
-
-		if (!utf8 &&
-		     ((ts->flags & LWS_TOKENIZE_F_RFC7230_DELIMS &&
-		     strchr(rfc7230_delims, c) && c > 32) ||
-		    ((!(ts->flags & LWS_TOKENIZE_F_RFC7230_DELIMS) &&
-		     (c < '0' || c > '9') && (c < 'A' || c > 'Z') &&
-		     (c < 'a' || c > 'z') && c != '_') &&
-		     c != s_minus && c != s_dot) ||
-		    c == d_minus || c == d_dot
-		    )) {
-			switch (state) {
-			case LWS_TOKZS_LEADING_WHITESPACE:
-				if (ts->flags & LWS_TOKENIZE_F_COMMA_SEP_LIST) {
-					if (c != ',' ||
-					    ts->delim != LWSTZ_DT_NEED_DELIM)
-						return LWS_TOKZE_ERR_COMMA_LIST;
-					ts->delim = LWSTZ_DT_NEED_NEXT_CONTENT;
-				}
-
-				ts->token = ts->start - 1;
-				ts->token_len = 1;
-				return LWS_TOKZE_DELIMITER;
-
-			case LWS_TOKZS_QUOTED_STRING:
-				ts->token_len++;
-				continue;
-
-			case LWS_TOKZS_TOKEN_POST_TERMINAL:
-			case LWS_TOKZS_TOKEN:
-				/* report the delimiter next time */
-				ts->start--;
-				ts->len++;
-				goto token_or_numeric;
-			}
-		}
-
-		/* anything that's not whitespace or delimiter is payload */
-
-		switch (state) {
-		case LWS_TOKZS_LEADING_WHITESPACE:
-
-			if (ts->flags & LWS_TOKENIZE_F_COMMA_SEP_LIST) {
-				if (ts->delim == LWSTZ_DT_NEED_DELIM)
-					return LWS_TOKZE_ERR_COMMA_LIST;
-				ts->delim = LWSTZ_DT_NEED_DELIM;
-			}
-
-			state = LWS_TOKZS_TOKEN;
-			ts->token = ts->start - 1;
-			ts->token_len = 1;
-			if (c < '0' || c > '9')
-				num = 0;
-			else
-				if (num < 0)
-					num = 1;
-			continue;
-		case LWS_TOKZS_QUOTED_STRING:
-		case LWS_TOKZS_TOKEN:
-			if (c < '0' || c > '9')
-				num = 0;
-			else
-				if (num < 0)
-					num = 1;
-			ts->token_len++;
-			continue;
-		case LWS_TOKZS_TOKEN_POST_TERMINAL:
-			/* report the new token next time */
-			ts->start--;
-			ts->len++;
-			goto token_or_numeric;
-		}
-	}
-
-	/* we ran out of content */
-
-	if (utf8) /* ended partway through a multibyte char */
-		return LWS_TOKZE_ERR_BROKEN_UTF8;
-
-	if (state == LWS_TOKZS_QUOTED_STRING)
-		return LWS_TOKZE_ERR_UNTERM_STRING;
-
-	if (state != LWS_TOKZS_TOKEN_POST_TERMINAL &&
-	    state != LWS_TOKZS_TOKEN) {
-		if ((ts->flags & LWS_TOKENIZE_F_COMMA_SEP_LIST) &&
-		     ts->delim == LWSTZ_DT_NEED_NEXT_CONTENT)
-			return LWS_TOKZE_ERR_COMMA_LIST;
-
-		return LWS_TOKZE_ENDED;
-	}
-
-	/* report the pending token */
-
-token_or_numeric:
-
-	if (num != 1)
-		return LWS_TOKZE_TOKEN;
-	if (flo)
-		return LWS_TOKZE_FLOAT;
-
-	return LWS_TOKZE_INTEGER;
-}
-
-
-LWS_VISIBLE LWS_EXTERN int
-lws_tokenize_cstr(struct lws_tokenize *ts, char *str, int max)
-{
-	if (ts->token_len + 1 >= max)
-		return 1;
-
-	memcpy(str, ts->token, ts->token_len);
-	str[ts->token_len] = '\0';
-
-	return 0;
-}
-
-LWS_VISIBLE LWS_EXTERN void
-lws_tokenize_init(struct lws_tokenize *ts, const char *start, int flags)
-{
-	ts->start = start;
-	ts->len = 0x7fffffff;
-	ts->flags = flags;
-	ts->delim = LWSTZ_DT_NEED_FIRST_CONTENT;
-}
-
-#if LWS_MAX_SMP > 1
-
-void
-lws_mutex_refcount_init(struct lws_mutex_refcount *mr)
-{
-	pthread_mutex_init(&mr->lock, NULL);
-	mr->last_lock_reason = NULL;
-	mr->lock_depth = 0;
-	mr->metadata = 0;
-	mr->lock_owner = 0;
-}
-
-void
-lws_mutex_refcount_destroy(struct lws_mutex_refcount *mr)
-{
-	pthread_mutex_destroy(&mr->lock);
-}
-
-void
-lws_mutex_refcount_lock(struct lws_mutex_refcount *mr, const char *reason)
-{
-	/* if true, this sequence is atomic because our thread has the lock
-	 *
-	 *  - if true, only guy who can race to make it untrue is our thread,
-	 *    and we are here.
-	 *
-	 *  - if false, only guy who could race to make it true is our thread,
-	 *    and we are here
-	 *
-	 *  - it can be false and change to a different tid that is also false
-	 */
-	if (mr->lock_owner == pthread_self()) {
-		/* atomic because we only change it if we own the lock */
-		mr->lock_depth++;
-		return;
-	}
-
-	pthread_mutex_lock(&mr->lock);
-	/* atomic because only we can have the lock */
-	mr->last_lock_reason = reason;
-	mr->lock_owner = pthread_self();
-	mr->lock_depth = 1;
-	//lwsl_notice("tid %d: lock %s\n", mr->tid, reason);
-}
-
-void
-lws_mutex_refcount_unlock(struct lws_mutex_refcount *mr)
-{
-	if (--mr->lock_depth)
-		/* atomic because only thread that has the lock can unlock */
-		return;
-
-	mr->last_lock_reason = "free";
-	mr->lock_owner = 0;
-	//lwsl_notice("tid %d: unlock %s\n", mr->tid, mr->last_lock_reason);
-	pthread_mutex_unlock(&mr->lock);
-}
-
-#endif /* SMP */
-
 LWS_VISIBLE LWS_EXTERN int
 lws_is_cgi(struct lws *wsi) {
 #ifdef LWS_WITH_CGI
@@ -3432,21 +2941,6 @@ lws_pvo_search(const struct lws_protocol_vhost_options *pvo, const char *name)
 	return pvo;
 }
 
-int
-lws_pvo_get_str(void *in, const char *name, const char **result)
-{
-	const struct lws_protocol_vhost_options *pv =
-		lws_pvo_search((const struct lws_protocol_vhost_options *)in,
-				name);
-
-	if (!pv)
-		return 1;
-
-	*result = (const char *)pv->value;
-
-	return 0;
-}
-
 void
 lws_sum_stats(const struct lws_context *ctx, struct lws_conn_stats *cs)
 {
@@ -3761,10 +3255,9 @@ LWS_VISIBLE LWS_EXTERN void
 lws_stats_log_dump(struct lws_context *context)
 {
 	struct lws_vhost *v = context->vhost_list;
-	int n;
-#if defined(LWS_WITH_PEER_LIMITS)
-	int m;
-#endif
+	int n, m;
+
+	(void)m;
 
 	if (!context->updated)
 		return;
diff --git a/thirdparty/libwebsockets/lib/core/output.c b/thirdparty/libwebsockets/core/output.c
index 49d289db40..11965a06b9 100644
--- a/thirdparty/libwebsockets/lib/core/output.c
+++ b/thirdparty/libwebsockets/core/output.c
@@ -1,7 +1,7 @@
 /*
  * libwebsockets - small server side websockets and web server implementation
  *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -29,65 +29,49 @@ int lws_issue_raw(struct lws *wsi, unsigned char *buf, size_t len)
 	struct lws_context *context = lws_get_context(wsi);
 	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
 	size_t real_len = len;
-	unsigned int n, m;
+	unsigned int n;
 
-	// lwsl_notice("%s: len %d\n", __func__, (int)len);
-	// lwsl_hexdump_level(LLL_NOTICE, buf, len);
+	// lwsl_hexdump_err(buf, len);
 
 	/*
 	 * Detect if we got called twice without going through the
-	 * event loop to handle pending.  Since that guarantees extending any
-	 * existing buflist_out it's inefficient.
+	 * event loop to handle pending.  This would be caused by either
+	 * back-to-back writes in one WRITABLE (illegal) or calling lws_write()
+	 * from outside the WRITABLE callback (illegal).
 	 */
-	if (0 && buf && wsi->could_have_pending) {
-		lwsl_hexdump_level(LLL_INFO, buf, len);
-		lwsl_info("** %p: vh: %s, prot: %s, role %s: "
-			 "Inefficient back-to-back write of %lu detected...\n",
+	if (wsi->could_have_pending) {
+		lwsl_hexdump_level(LLL_ERR, buf, len);
+		lwsl_err("** %p: vh: %s, prot: %s, role %s: "
+			 "Illegal back-to-back write of %lu detected...\n",
 			 wsi, wsi->vhost->name, wsi->protocol->name,
 			 wsi->role_ops->name,
 			 (unsigned long)len);
+		// assert(0);
+
+		return -1;
 	}
 
 	lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_C_API_WRITE, 1);
 
+	if (!len)
+		return 0;
 	/* just ignore sends after we cleared the truncation buffer */
-	if (lwsi_state(wsi) == LRS_FLUSHING_BEFORE_CLOSE &&
-	    !lws_has_buffered_out(wsi)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	    && !wsi->http.comp_ctx.may_have_more
-#endif
-	    )
+	if (lwsi_state(wsi) == LRS_FLUSHING_BEFORE_CLOSE && !wsi->trunc_len)
 		return (int)len;
 
-	if (buf && lws_has_buffered_out(wsi)) {
-		lwsl_info("** %p: vh: %s, prot: %s, incr buflist_out by %lu\n",
+	if (wsi->trunc_len && (buf < wsi->trunc_alloc ||
+	    buf > (wsi->trunc_alloc + wsi->trunc_len + wsi->trunc_offset))) {
+		lwsl_hexdump_level(LLL_ERR, buf, len);
+		lwsl_err("** %p: vh: %s, prot: %s, Sending new %lu, pending truncated ...\n"
+			 "   It's illegal to do an lws_write outside of\n"
+			 "   the writable callback: fix your code\n",
 			 wsi, wsi->vhost->name, wsi->protocol->name,
 			 (unsigned long)len);
+		assert(0);
 
-		/*
-		 * already buflist ahead of this, add it on the tail of the
-		 * buflist, then ignore it for now and act like we're flushing
-		 * the buflist...
-		 */
-
-		lws_buflist_append_segment(&wsi->buflist_out, buf, len);
-
-		buf = NULL;
-		len = 0;
-	}
-
-	if (wsi->buflist_out) {
-		/* we have to drain the earliest buflist_out stuff first */
-
-		len = lws_buflist_next_segment_len(&wsi->buflist_out, &buf);
-		real_len = len;
-
-		lwsl_debug("%s: draining %d\n", __func__, (int)len);
+		return -1;
 	}
 
-	if (!len || !buf)
-		return 0;
-
 	if (!wsi->http2_substream && !lws_socket_is_valid(wsi->desc.sockfd))
 		lwsl_warn("** error invalid sock but expected to send\n");
 
@@ -105,15 +89,13 @@ int lws_issue_raw(struct lws *wsi, unsigned char *buf, size_t len)
 
 	/* nope, send it on the socket directly */
 	lws_latency_pre(context, wsi);
-	m = lws_ssl_capable_write(wsi, buf, n);
-	lws_latency(context, wsi, "send lws_issue_raw", n, n == m);
-
-	lwsl_info("%s: ssl_capable_write (%d) says %d\n", __func__, n, m);
+	n = lws_ssl_capable_write(wsi, buf, n);
+	lws_latency(context, wsi, "send lws_issue_raw", n, n == len);
 
 	/* something got written, it can have been truncated now */
 	wsi->could_have_pending = 1;
 
-	switch (m) {
+	switch (n) {
 	case LWS_SSL_CAPABLE_ERROR:
 		/* we're going to close, let close know sends aren't possible */
 		wsi->socket_is_permanently_unusable = 1;
@@ -124,29 +106,24 @@ int lws_issue_raw(struct lws *wsi, unsigned char *buf, size_t len)
 		 * ie, implying treat it was a truncated send so it gets
 		 * retried
 		 */
-		m = 0;
+		n = 0;
 		break;
 	}
 
 	/*
-	 * we were sending this from buflist_out?  Then not sending everything
-	 * is a small matter of advancing ourselves only by the amount we did
-	 * send in the buflist.
+	 * we were already handling a truncated send?
 	 */
-	if (lws_has_buffered_out(wsi)) {
-		if (m) {
-			lwsl_info("%p partial adv %d (vs %ld)\n", wsi, m,
-					(long)real_len);
-			lws_buflist_use_segment(&wsi->buflist_out, m);
-		}
-
-		if (!lws_has_buffered_out(wsi)) {
-			lwsl_info("%s: wsi %p: buflist_out flushed\n",
-				  __func__, wsi);
-
-			m = (int)real_len;
+	if (wsi->trunc_len) {
+		lwsl_info("%p partial adv %d (vs %ld)\n", wsi, n, (long)real_len);
+		wsi->trunc_offset += n;
+		wsi->trunc_len -= n;
+
+		if (!wsi->trunc_len) {
+			lwsl_info("** %p partial send completed\n", wsi);
+			/* done with it, but don't free it */
+			n = (int)real_len;
 			if (lwsi_state(wsi) == LRS_FLUSHING_BEFORE_CLOSE) {
-				lwsl_info("*%p signalling to close now\n", wsi);
+				lwsl_info("** %p signalling to close now\n", wsi);
 				return -1; /* retry closing now */
 			}
 
@@ -157,8 +134,7 @@ int lws_issue_raw(struct lws *wsi, unsigned char *buf, size_t len)
 					    "deferred transaction completed\n",
 					    __func__);
 				wsi->http.deferred_transaction_completed = 0;
-				return lws_http_transaction_completed(wsi) ?
-							-1 : (int)real_len;
+				return lws_http_transaction_completed(wsi);
 			}
 #endif
 #endif
@@ -166,32 +142,43 @@ int lws_issue_raw(struct lws *wsi, unsigned char *buf, size_t len)
 		/* always callback on writeable */
 		lws_callback_on_writable(wsi);
 
-		return m;
+		return n;
 	}
 
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (wsi->http.comp_ctx.may_have_more)
-		lws_callback_on_writable(wsi);
-#endif
-
-	if (m == real_len)
+	if ((unsigned int)n == real_len)
 		/* what we just sent went out cleanly */
-		return m;
+		return n;
 
 	/*
-	 * We were not able to send everything... and we were not sending from
-	 * an existing buflist_out.  So we are starting a fresh buflist_out, by
-	 * buffering the unsent remainder on it.
-	 * (it will get first priority next time the socket is writable).
+	 * Newly truncated send.  Buffer the remainder (it will get
+	 * first priority next time the socket is writable).
 	 */
-	lwsl_debug("%p new partial sent %d from %lu total\n", wsi, m,
+	lwsl_debug("%p new partial sent %d from %lu total\n", wsi, n,
 		    (unsigned long)real_len);
 
-	lws_buflist_append_segment(&wsi->buflist_out, buf + m, real_len - m);
-
 	lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_C_WRITE_PARTIALS, 1);
-	lws_stats_atomic_bump(wsi->context, pt,
-			      LWSSTATS_B_PARTIALS_ACCEPTED_PARTS, m);
+	lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_B_PARTIALS_ACCEPTED_PARTS, n);
+
+	/*
+	 *  - if we still have a suitable malloc lying around, use it
+	 *  - or, if too small, reallocate it
+	 *  - or, if no buffer, create it
+	 */
+	if (!wsi->trunc_alloc || real_len - n > wsi->trunc_alloc_len) {
+		lws_free(wsi->trunc_alloc);
+
+		wsi->trunc_alloc_len = (unsigned int)(real_len - n);
+		wsi->trunc_alloc = lws_malloc(real_len - n,
+					      "truncated send alloc");
+		if (!wsi->trunc_alloc) {
+			lwsl_err("truncated send: unable to malloc %lu\n",
+				 (unsigned long)(real_len - n));
+			return -1;
+		}
+	}
+	wsi->trunc_offset = 0;
+	wsi->trunc_len = (unsigned int)(real_len - n);
+	memcpy(wsi->trunc_alloc, buf + n, real_len - n);
 
 #if !defined(LWS_WITH_ESP32)
 	if (lws_wsi_is_udp(wsi)) {
@@ -212,6 +199,23 @@ LWS_VISIBLE int lws_write(struct lws *wsi, unsigned char *buf, size_t len,
 {
 	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
 
+	if (wsi->parent_carries_io) {
+		struct lws_write_passthru pas;
+
+		pas.buf = buf;
+		pas.len = len;
+		pas.wp = wp;
+		pas.wsi = wsi;
+
+		if (wsi->parent->protocol->callback(wsi->parent,
+				LWS_CALLBACK_CHILD_WRITE_VIA_PARENT,
+				wsi->parent->user_space,
+				(void *)&pas, 0))
+			return 1;
+
+		return (int)len;
+	}
+
 	lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_C_API_LWS_WRITE, 1);
 
 	if ((int)len < 0) {
@@ -254,10 +258,6 @@ lws_ssl_capable_read_no_ssl(struct lws *wsi, unsigned char *buf, int len)
 		n = recv(wsi->desc.sockfd, (char *)buf, len, 0);
 
 	if (n >= 0) {
-
-		if (!n && wsi->unix_skt)
-			return LWS_SSL_CAPABLE_ERROR;
-
 		if (wsi->vhost)
 			wsi->vhost->conn_stats.rx += n;
 		lws_stats_atomic_bump(context, pt, LWSSTATS_B_READ, n);
@@ -270,7 +270,7 @@ lws_ssl_capable_read_no_ssl(struct lws *wsi, unsigned char *buf, int len)
 	    LWS_ERRNO == LWS_EINTR)
 		return LWS_SSL_CAPABLE_MORE_SERVICE;
 
-	lwsl_info("error on reading from skt : %d\n", LWS_ERRNO);
+	lwsl_notice("error on reading from skt : %d\n", LWS_ERRNO);
 	return LWS_SSL_CAPABLE_ERROR;
 }
 
@@ -281,13 +281,10 @@ lws_ssl_capable_write_no_ssl(struct lws *wsi, unsigned char *buf, int len)
 
 	if (lws_wsi_is_udp(wsi)) {
 #if !defined(LWS_WITH_ESP32)
-		if (lws_has_buffered_out(wsi))
-			n = sendto(wsi->desc.sockfd, (const char *)buf,
-				   len, 0, &wsi->udp->sa_pending,
-				   wsi->udp->salen_pending);
+		if (wsi->trunc_len)
+			n = sendto(wsi->desc.sockfd, buf, len, 0, &wsi->udp->sa_pending, wsi->udp->salen_pending);
 		else
-			n = sendto(wsi->desc.sockfd, (const char *)buf,
-				   len, 0, &wsi->udp->sa, wsi->udp->salen);
+			n = sendto(wsi->desc.sockfd, buf, len, 0, &wsi->udp->sa, wsi->udp->salen);
 #endif
 	} else
 		n = send(wsi->desc.sockfd, (char *)buf, len, MSG_NOSIGNAL);
@@ -306,7 +303,7 @@ lws_ssl_capable_write_no_ssl(struct lws *wsi, unsigned char *buf, int len)
 	}
 
 	lwsl_debug("ERROR writing len %d to skt fd %d err %d / errno %d\n",
-		   len, wsi->desc.sockfd, n, LWS_ERRNO);
+			len, wsi->desc.sockfd, n, LWS_ERRNO);
 
 	return LWS_SSL_CAPABLE_ERROR;
 }
diff --git a/thirdparty/libwebsockets/lib/core/pollfd.c b/thirdparty/libwebsockets/core/pollfd.c
index 834298577a..2a632ce8ec 100644
--- a/thirdparty/libwebsockets/lib/core/pollfd.c
+++ b/thirdparty/libwebsockets/core/pollfd.c
@@ -134,8 +134,7 @@ _lws_change_pollfd(struct lws *wsi, int _and, int _or, struct lws_pollargs *pa)
 
 	pfd = &pt->fds[wsi->position_in_fds_table];
 	pa->fd = wsi->desc.sockfd;
-	lwsl_debug("%s: wsi %p: fd %d events %d -> %d\n", __func__, wsi,
-		   pa->fd, pfd->events, (pfd->events & ~_and) | _or);
+	lwsl_debug("%s: wsi %p: fd %d events %d -> %d\n", __func__, wsi, pa->fd, pfd->events, (pfd->events & ~_and) | _or);
 	pa->prev_events = pfd->events;
 	pa->events = pfd->events = (pfd->events & ~_and) | _or;
 
@@ -183,7 +182,7 @@ _lws_change_pollfd(struct lws *wsi, int _and, int _or, struct lws_pollargs *pa)
 			ret = -1;
 			goto bail;
 		}
-		sampled_tid = pt->service_tid;
+		sampled_tid = context->service_tid;
 		if (sampled_tid && wsi->vhost) {
 			tid = wsi->vhost->protocols[0].callback(wsi,
 				     LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
@@ -246,8 +245,7 @@ __insert_wsi_socket_into_fds(struct lws_context *context, struct lws *wsi)
 #if !defined(_WIN32)
 	if (wsi->desc.sockfd - lws_plat_socket_offset() >= context->max_fds) {
 		lwsl_err("Socket fd %d is too high (%d) offset %d\n",
-			 wsi->desc.sockfd, context->max_fds,
-			 lws_plat_socket_offset());
+			 wsi->desc.sockfd, context->max_fds, lws_plat_socket_offset());
 		return 1;
 	}
 #endif
@@ -300,6 +298,11 @@ __remove_wsi_socket_from_fds(struct lws *wsi)
 	int v;
 	int m, ret = 0;
 
+	if (wsi->parent_carries_io) {
+		lws_same_vh_protocol_remove(wsi);
+		return 0;
+	}
+
 #if !defined(_WIN32)
 	if (wsi->desc.sockfd - lws_plat_socket_offset() > context->max_fds) {
 		lwsl_err("fd %d too high (%d)\n", wsi->desc.sockfd,
@@ -327,7 +330,7 @@ __remove_wsi_socket_from_fds(struct lws *wsi)
 				  LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE |
 				  LWS_EV_PREPARE_DELETION);
 
-	lwsl_debug("%s: wsi=%p, skt=%d, fds pos=%d, end guy pos=%d, endfd=%d\n",
+	lwsl_debug("%s: wsi=%p, sock=%d, fds pos=%d, end guy pos=%d, endfd=%d\n",
 		  __func__, wsi, wsi->desc.sockfd, wsi->position_in_fds_table,
 		  pt->fds_count, pt->fds[pt->fds_count].fd);
 
@@ -337,13 +340,11 @@ __remove_wsi_socket_from_fds(struct lws *wsi)
 		pt->fds[m] = pt->fds[pt->fds_count - 1];
 		/* this decrements pt->fds_count */
 		lws_plat_delete_socket_from_fds(context, wsi, m);
-		pt->count_conns--;
 		v = (int) pt->fds[m].fd;
-		/* end guy's "position in fds table" is now the deletion
-		 * guy's old one */
+		/* end guy's "position in fds table" is now the deletion guy's old one */
 		end_wsi = wsi_from_fd(context, v);
 		if (!end_wsi) {
-			lwsl_err("no wsi for fd %d pos %d, pt->fds_count=%d\n",
+			lwsl_err("no wsi for fd %d at pos %d, pt->fds_count=%d\n",
 				 (int)pt->fds[m].fd, m, pt->fds_count);
 			assert(0);
 		} else
@@ -425,6 +426,7 @@ LWS_VISIBLE int
 lws_callback_on_writable(struct lws *wsi)
 {
 	struct lws_context_per_thread *pt;
+	int n;
 
 	if (lwsi_state(wsi) == LRS_SHUTDOWN)
 		return 0;
@@ -434,10 +436,26 @@ lws_callback_on_writable(struct lws *wsi)
 
 	pt = &wsi->context->pt[(int)wsi->tsi];
 
+	if (wsi->parent_carries_io) {
+#if defined(LWS_WITH_STATS)
+		if (!wsi->active_writable_req_us) {
+			wsi->active_writable_req_us = time_in_microseconds();
+			lws_stats_atomic_bump(wsi->context, pt,
+					      LWSSTATS_C_WRITEABLE_CB_EFF_REQ, 1);
+		}
+#endif
+		n = lws_callback_on_writable(wsi->parent);
+		if (n < 0)
+			return n;
+
+		wsi->parent_pending_cb_on_writable = 1;
+		return 1;
+	}
+
 	lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_C_WRITEABLE_CB_REQ, 1);
 #if defined(LWS_WITH_STATS)
 	if (!wsi->active_writable_req_us) {
-		wsi->active_writable_req_us = lws_time_in_microseconds();
+		wsi->active_writable_req_us = time_in_microseconds();
 		lws_stats_atomic_bump(wsi->context, pt,
 				      LWSSTATS_C_WRITEABLE_CB_EFF_REQ, 1);
 	}
@@ -475,33 +493,64 @@ lws_callback_on_writable(struct lws *wsi)
 void
 lws_same_vh_protocol_insert(struct lws *wsi, int n)
 {
+	if (wsi->same_vh_protocol_prev || wsi->same_vh_protocol_next) {
+		lws_same_vh_protocol_remove(wsi);
+		lwsl_notice("Attempted to attach wsi twice to same vh prot\n");
+	}
+
 	lws_vhost_lock(wsi->vhost);
 
-	if (!lws_dll_is_null(&wsi->same_vh_protocol))
-		lws_dll_lws_remove(&wsi->same_vh_protocol);
+	wsi->same_vh_protocol_prev = &wsi->vhost->same_vh_protocol_list[n];
+	/* old first guy is our next */
+	wsi->same_vh_protocol_next =  wsi->vhost->same_vh_protocol_list[n];
+	/* we become the new first guy */
+	wsi->vhost->same_vh_protocol_list[n] = wsi;
 
-	lws_dll_lws_add_front(&wsi->same_vh_protocol,
-			      &wsi->vhost->same_vh_protocol_heads[n]);
+	if (wsi->same_vh_protocol_next)
+		/* old first guy points back to us now */
+		wsi->same_vh_protocol_next->same_vh_protocol_prev =
+				&wsi->same_vh_protocol_next;
 
-	lws_vhost_unlock(wsi->vhost);
-}
+	wsi->on_same_vh_list = 1;
 
-void
-__lws_same_vh_protocol_remove(struct lws *wsi)
-{
-	if (!lws_dll_is_null(&wsi->same_vh_protocol))
-		lws_dll_lws_remove(&wsi->same_vh_protocol);
+	lws_vhost_unlock(wsi->vhost);
 }
 
 void
 lws_same_vh_protocol_remove(struct lws *wsi)
 {
-	if (!wsi->vhost)
+	/*
+	 * detach ourselves from vh protocol list if we're on one
+	 * A -> B -> C
+	 * A -> C , or, B -> C, or A -> B
+	 *
+	 * OK to call on already-detached wsi
+	 */
+	lwsl_info("%s: removing same prot wsi %p\n", __func__, wsi);
+
+	if (!wsi->vhost || !wsi->on_same_vh_list)
 		return;
 
 	lws_vhost_lock(wsi->vhost);
 
-	__lws_same_vh_protocol_remove(wsi);
+	if (wsi->same_vh_protocol_prev) {
+		assert (*(wsi->same_vh_protocol_prev) == wsi);
+		lwsl_info("have prev %p, setting him to our next %p\n",
+			 wsi->same_vh_protocol_prev,
+			 wsi->same_vh_protocol_next);
+
+		/* guy who pointed to us should point to our next */
+		*(wsi->same_vh_protocol_prev) = wsi->same_vh_protocol_next;
+	}
+
+	/* our next should point back to our prev */
+	if (wsi->same_vh_protocol_next)
+		wsi->same_vh_protocol_next->same_vh_protocol_prev =
+				wsi->same_vh_protocol_prev;
+
+	wsi->same_vh_protocol_prev = NULL;
+	wsi->same_vh_protocol_next = NULL;
+	wsi->on_same_vh_list = 0;
 
 	lws_vhost_unlock(wsi->vhost);
 }
@@ -509,10 +558,9 @@ lws_same_vh_protocol_remove(struct lws *wsi)
 
 LWS_VISIBLE int
 lws_callback_on_writable_all_protocol_vhost(const struct lws_vhost *vhost,
-				           const struct lws_protocols *protocol)
+				      const struct lws_protocols *protocol)
 {
 	struct lws *wsi;
-	int n;
 
 	if (protocol < vhost->protocols ||
 	    protocol >= (vhost->protocols + vhost->count_protocols)) {
@@ -523,16 +571,18 @@ lws_callback_on_writable_all_protocol_vhost(const struct lws_vhost *vhost,
 		return -1;
 	}
 
-	n = (int)(protocol - vhost->protocols);
-
-	lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
-				   vhost->same_vh_protocol_heads[n].next) {
-		wsi = lws_container_of(d, struct lws, same_vh_protocol);
-
+	wsi = vhost->same_vh_protocol_list[protocol - vhost->protocols];
+	while (wsi) {
 		assert(wsi->protocol == protocol);
-		lws_callback_on_writable(wsi);
+		assert(*wsi->same_vh_protocol_prev == wsi);
+		if (wsi->same_vh_protocol_next)
+			assert(wsi->same_vh_protocol_next->
+					same_vh_protocol_prev ==
+					&wsi->same_vh_protocol_next);
 
-	} lws_end_foreach_dll_safe(d, d1);
+		lws_callback_on_writable(wsi);
+		wsi = wsi->same_vh_protocol_next;
+	}
 
 	return 0;
 }
@@ -552,7 +602,7 @@ lws_callback_on_writable_all_protocol(const struct lws_context *context,
 	while (vhost) {
 		for (n = 0; n < vhost->count_protocols; n++)
 			if (protocol->callback ==
-			     vhost->protocols[n].callback &&
+			    vhost->protocols[n].callback &&
 			    !strcmp(protocol->name, vhost->protocols[n].name))
 				break;
 		if (n != vhost->count_protocols)
diff --git a/thirdparty/libwebsockets/lib/core/private.h b/thirdparty/libwebsockets/core/private.h
index c1a0a661b1..73748b0498 100644
--- a/thirdparty/libwebsockets/lib/core/private.h
+++ b/thirdparty/libwebsockets/core/private.h
@@ -36,6 +36,10 @@
  typedef float _Float128x;
 #endif
 
+#ifdef LWS_HAVE_SYS_TYPES_H
+ #include <sys/types.h>
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -44,17 +48,271 @@
 #include <limits.h>
 #include <stdarg.h>
 #include <inttypes.h>
+
+#if defined(LWS_WITH_ESP32)
+ #define MSG_NOSIGNAL 0
+ #define SOMAXCONN 3
+#endif
+
+#define STORE_IN_ROM
 #include <assert.h>
+#if LWS_MAX_SMP > 1
+ #include <pthread.h>
+#endif
 
-#ifdef LWS_HAVE_SYS_TYPES_H
+#ifdef LWS_HAVE_SYS_STAT_H
+ #include <sys/stat.h>
+#endif
+
+#if defined(WIN32) || defined(_WIN32)
+
+ #ifndef WIN32_LEAN_AND_MEAN
+  #define WIN32_LEAN_AND_MEAN
+ #endif
+
+ #if (WINVER < 0x0501)
+  #undef WINVER
+  #undef _WIN32_WINNT
+  #define WINVER 0x0501
+  #define _WIN32_WINNT WINVER
+ #endif
+
+ #define LWS_NO_DAEMONIZE
+ #define LWS_ERRNO WSAGetLastError()
+ #define LWS_EAGAIN WSAEWOULDBLOCK
+ #define LWS_EALREADY WSAEALREADY
+ #define LWS_EINPROGRESS WSAEINPROGRESS
+ #define LWS_EINTR WSAEINTR
+ #define LWS_EISCONN WSAEISCONN
+ #define LWS_EWOULDBLOCK WSAEWOULDBLOCK
+ #define MSG_NOSIGNAL 0
+ #define SHUT_RDWR SD_BOTH
+ #define SOL_TCP IPPROTO_TCP
+ #define SHUT_WR SD_SEND
+
+ #define compatible_close(fd) closesocket(fd)
+ #define lws_set_blocking_send(wsi) wsi->sock_send_blocking = 1
+ #define LWS_SOCK_INVALID (INVALID_SOCKET)
+
+ #include <winsock2.h>
+ #include <ws2tcpip.h>
+ #include <windows.h>
+ #include <tchar.h>
+ #ifdef LWS_HAVE_IN6ADDR_H
+  #include <in6addr.h>
+ #endif
+ #include <mstcpip.h>
+ #include <io.h>
+
+ #if !defined(LWS_HAVE_ATOLL)
+  #if defined(LWS_HAVE__ATOI64)
+   #define atoll _atoi64
+  #else
+   #warning No atoll or _atoi64 available, using atoi
+   #define atoll atoi
+  #endif
+ #endif
+
+ #ifndef __func__
+  #define __func__ __FUNCTION__
+ #endif
+
+ #ifdef LWS_HAVE__VSNPRINTF
+  #define vsnprintf _vsnprintf
+ #endif
+
+ /* we don't have an implementation for this on windows... */
+ int kill(int pid, int sig);
+ int fork(void);
+ #ifndef SIGINT
+  #define SIGINT 2
+ #endif
+
+#else /* not windows --> */
+
+ #include <fcntl.h>
+ #include <strings.h>
+ #include <unistd.h>
  #include <sys/types.h>
+
+ #ifndef __cplusplus
+  #include <errno.h>
+ #endif
+ #include <netdb.h>
+ #include <signal.h>
+ #include <sys/socket.h>
+
+ #if defined(LWS_BUILTIN_GETIFADDRS)
+  #include "./misc/getifaddrs.h"
+ #else
+  #if !defined(LWS_WITH_ESP32)
+   #if defined(__HAIKU__)
+    #define _BSD_SOURCE
+   #endif
+   #include <ifaddrs.h>
+  #endif
+ #endif
+ #if defined (__ANDROID__)
+  #include <syslog.h>
+  #include <sys/resource.h>
+ #elif defined (__sun) || defined(__HAIKU__) || defined(__QNX__)
+  #include <syslog.h>
+ #else
+  #if !defined(LWS_WITH_ESP32)
+   #include <sys/syslog.h>
+  #endif
+ #endif
+ #include <netdb.h>
+ #if !defined(LWS_WITH_ESP32)
+  #include <sys/mman.h>
+  #include <sys/un.h>
+  #include <netinet/in.h>
+  #include <netinet/tcp.h>
+  #include <arpa/inet.h>
+  #include <poll.h>
+ #endif
+ #ifndef LWS_NO_FORK
+  #ifdef LWS_HAVE_SYS_PRCTL_H
+   #include <sys/prctl.h>
+  #endif
+ #endif
+
+ #include <sys/time.h>
+
+ #define LWS_ERRNO errno
+ #define LWS_EAGAIN EAGAIN
+ #define LWS_EALREADY EALREADY
+ #define LWS_EINPROGRESS EINPROGRESS
+ #define LWS_EINTR EINTR
+ #define LWS_EISCONN EISCONN
+ #define LWS_EWOULDBLOCK EWOULDBLOCK
+
+ #define lws_set_blocking_send(wsi)
+
+ #define LWS_SOCK_INVALID (-1)
+#endif /* not windows */
+
+#ifndef LWS_HAVE_BZERO
+ #ifndef bzero
+  #define bzero(b, len) (memset((b), '\0', (len)), (void) 0)
+ #endif
 #endif
-#ifdef LWS_HAVE_SYS_STAT_H
+
+#ifndef LWS_HAVE_STRERROR
+ #define strerror(x) ""
+#endif
+
+
+#define lws_socket_is_valid(x) (x != LWS_SOCK_INVALID)
+
+#include "libwebsockets.h"
+
+#include "tls/private.h"
+
+#if defined(WIN32) || defined(_WIN32)
+ #include <gettimeofday.h>
+
+ #ifndef BIG_ENDIAN
+  #define BIG_ENDIAN    4321  /* to show byte order (taken from gcc) */
+ #endif
+ #ifndef LITTLE_ENDIAN
+  #define LITTLE_ENDIAN 1234
+ #endif
+ #ifndef BYTE_ORDER
+  #define BYTE_ORDER LITTLE_ENDIAN
+ #endif
+
+ #undef __P
+ #ifndef __P
+  #if __STDC__
+   #define __P(protos) protos
+  #else
+   #define __P(protos) ()
+  #endif
+ #endif
+
+#else /* not windows */
+ static LWS_INLINE int compatible_close(int fd) { return close(fd); }
+
  #include <sys/stat.h>
+ #include <sys/time.h>
+
+ #if defined(__APPLE__)
+  #include <machine/endian.h>
+ #elif defined(__FreeBSD__)
+  #include <sys/endian.h>
+ #elif defined(__linux__)
+  #include <endian.h>
+ #endif
 #endif
 
-#if LWS_MAX_SMP > 1
- #include <pthread.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__QNX__)
+	#include <gulliver.h>
+	#if defined(__LITTLEENDIAN__)
+		#define BYTE_ORDER __LITTLEENDIAN__
+		#define LITTLE_ENDIAN __LITTLEENDIAN__
+		#define BIG_ENDIAN 4321  /* to show byte order (taken from gcc); for suppres warning that BIG_ENDIAN is not defined. */
+	#endif
+	#if defined(__BIGENDIAN__)
+		#define BYTE_ORDER __BIGENDIAN__
+		#define LITTLE_ENDIAN 1234  /* to show byte order (taken from gcc); for suppres warning that LITTLE_ENDIAN is not defined. */
+		#define BIG_ENDIAN __BIGENDIAN__
+	#endif
+#endif
+
+#if defined(__sun) && defined(__GNUC__)
+
+ #include <arpa/nameser_compat.h>
+
+ #if !defined (BYTE_ORDER)
+  #define BYTE_ORDER __BYTE_ORDER__
+ #endif
+
+ #if !defined(LITTLE_ENDIAN)
+  #define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
+ #endif
+
+ #if !defined(BIG_ENDIAN)
+  #define BIG_ENDIAN __ORDER_BIG_ENDIAN__
+ #endif
+
+#endif /* sun + GNUC */
+
+#if !defined(BYTE_ORDER)
+ #define BYTE_ORDER __BYTE_ORDER
+#endif
+#if !defined(LITTLE_ENDIAN)
+ #define LITTLE_ENDIAN __LITTLE_ENDIAN
+#endif
+#if !defined(BIG_ENDIAN)
+ #define BIG_ENDIAN __BIG_ENDIAN
+#endif
+
+
+/*
+ * Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag,
+ * but happily have something equivalent in the SO_NOSIGPIPE flag.
+ */
+#ifdef __APPLE__
+#define MSG_NOSIGNAL SO_NOSIGPIPE
+#endif
+
+/*
+ * Solaris 11.X only supports POSIX 2001, MSG_NOSIGNAL appears in
+ * POSIX 2008.
+ */
+#ifdef __sun
+ #define MSG_NOSIGNAL 0
+#endif
+
+#ifdef _WIN32
+ #ifndef FD_HASHTABLE_MODULUS
+  #define FD_HASHTABLE_MODULUS 32
+ #endif
 #endif
 
 #ifndef LWS_DEF_HEADER_LEN
@@ -93,49 +351,6 @@
 
 #define LWS_H2_RX_SCRATCH_SIZE 512
 
-#define lws_socket_is_valid(x) (x != LWS_SOCK_INVALID)
-
-#ifndef LWS_HAVE_STRERROR
- #define strerror(x) ""
-#endif
-
- /*
-  *
-  *  ------ private platform defines ------
-  *
-  */
-
-#if defined(LWS_WITH_ESP32)
- #include "plat/esp32/private.h"
-#else
- #if defined(WIN32) || defined(_WIN32)
-  #include "plat/windows/private.h"
- #else
-  #if defined(LWS_PLAT_OPTEE)
-   #include "plat/optee/private.h"
-  #else
-   #include "plat/unix/private.h"
-  #endif
- #endif
-#endif
-
-#ifndef LWS_HAVE_BZERO
- #ifndef bzero
-  #define bzero(b, len) (memset((b), '\0', (len)), (void) 0)
- #endif
-#endif
-
- /*
-  *
-  *  ------ public api ------
-  *
-  */
-
-#include "libwebsockets.h"
-
-
-#include "tls/private.h"
-
 #if defined(WIN32) || defined(_WIN32)
 	 // Visual studio older than 2015 and WIN_CE has only _stricmp
 	#if (defined(_MSC_VER) && _MSC_VER < 1900) || defined(_WIN32_WCE)
@@ -146,14 +361,6 @@
 	#define getdtablesize() 30000
 #endif
 
-#ifndef LWS_ARRAY_SIZE
-#define LWS_ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /*
  * All lws_tls...() functions must return this type, converting the
  * native backend result and doing the extra work to determine which one
@@ -164,11 +371,11 @@ extern "C" {
  * Non-SSL mode also uses these types.
  */
 enum lws_ssl_capable_status {
-	LWS_SSL_CAPABLE_ERROR			= -1, /* it failed */
-	LWS_SSL_CAPABLE_DONE			= 0,  /* it succeeded */
-	LWS_SSL_CAPABLE_MORE_SERVICE_READ	= -2, /* retry WANT_READ */
-	LWS_SSL_CAPABLE_MORE_SERVICE_WRITE	= -3, /* retry WANT_WRITE */
-	LWS_SSL_CAPABLE_MORE_SERVICE		= -4, /* general retry */
+	LWS_SSL_CAPABLE_ERROR = -1,		 /* it failed */
+	LWS_SSL_CAPABLE_DONE = 0,		 /* it succeeded */
+	LWS_SSL_CAPABLE_MORE_SERVICE_READ = -2,	 /* retry WANT_READ */
+	LWS_SSL_CAPABLE_MORE_SERVICE_WRITE = -3,  /* retry WANT_WRITE */
+	LWS_SSL_CAPABLE_MORE_SERVICE = -4,	 /* general retry */
 };
 
 #if defined(__clang__)
@@ -310,6 +517,14 @@ struct lws_signal_watcher {
 	struct lws_context *context;
 };
 
+#ifdef _WIN32
+#define LWS_FD_HASH(fd) ((fd ^ (fd >> 8) ^ (fd >> 16)) % FD_HASHTABLE_MODULUS)
+struct lws_fd_hashtable {
+	struct lws **wsi;
+	int length;
+};
+#endif
+
 struct lws_foreign_thread_pollfd {
 	struct lws_foreign_thread_pollfd *next;
 	int fd_index;
@@ -317,28 +532,6 @@ struct lws_foreign_thread_pollfd {
 	int _or;
 };
 
-#if LWS_MAX_SMP > 1
-
-struct lws_mutex_refcount {
-	pthread_mutex_t lock;
-	pthread_t lock_owner;
-	const char *last_lock_reason;
-	char lock_depth;
-	char metadata;
-};
-
-void
-lws_mutex_refcount_init(struct lws_mutex_refcount *mr);
-
-void
-lws_mutex_refcount_destroy(struct lws_mutex_refcount *mr);
-
-void
-lws_mutex_refcount_lock(struct lws_mutex_refcount *mr, const char *reason);
-
-void
-lws_mutex_refcount_unlock(struct lws_mutex_refcount *mr);
-#endif
 
 #define LWS_HRTIMER_NOWAIT (0x7fffffffffffffffll)
 
@@ -349,9 +542,10 @@ lws_mutex_refcount_unlock(struct lws_mutex_refcount *mr);
 
 struct lws_context_per_thread {
 #if LWS_MAX_SMP > 1
+	pthread_mutex_t lock;
 	pthread_mutex_t lock_stats;
-	struct lws_mutex_refcount mr;
-	pthread_t self;
+	pthread_t lock_owner;
+	const char *last_lock_reason;
 #endif
 
 	struct lws_context *context;
@@ -374,7 +568,7 @@ struct lws_context_per_thread {
 	struct lws_pollfd *fds;
 	volatile struct lws_foreign_thread_pollfd * volatile foreign_pfd_list;
 #ifdef _WIN32
-	WSAEVENT events;
+	WSAEVENT *events;
 #endif
 	lws_sockfd_type dummy_pipe_fds[2];
 	struct lws *pipe_wsi;
@@ -387,9 +581,6 @@ struct lws_context_per_thread {
 #if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 	struct lws_pt_role_http http;
 #endif
-#if defined(LWS_ROLE_DBUS)
-	struct lws_pt_role_dbus dbus;
-#endif
 
 	/* --- event library based members --- */
 
@@ -403,8 +594,7 @@ struct lws_context_per_thread {
 	struct lws_pt_eventlibs_libevent event;
 #endif
 
-#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || \
-    defined(LWS_WITH_LIBEVENT)
+#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT)
 	struct lws_signal_watcher w_sigint;
 #endif
 
@@ -413,20 +603,12 @@ struct lws_context_per_thread {
 	unsigned long count_conns;
 	unsigned int fds_count;
 
-	/*
-	 * set to the Thread ID that's doing the service loop just before entry
-	 * to poll indicates service thread likely idling in poll()
-	 * volatile because other threads may check it as part of processing
-	 * for pollfd event change.
-	 */
-	volatile int service_tid;
-	int service_tid_detected;
-
 	volatile unsigned char inside_poll;
 	volatile unsigned char foreign_spinlock;
 
 	unsigned char tid;
 
+	unsigned char lock_depth;
 	unsigned char inside_service:1;
 	unsigned char event_loop_foreign:1;
 	unsigned char event_loop_destroy_processing_done:1;
@@ -444,10 +626,8 @@ lws_sum_stats(const struct lws_context *ctx, struct lws_conn_stats *cs);
 struct lws_timed_vh_protocol {
 	struct lws_timed_vh_protocol *next;
 	const struct lws_protocols *protocol;
-	struct lws_vhost *vhost; /* only used for pending processing */
 	time_t time;
 	int reason;
-	int tsi_req;
 };
 
 /*
@@ -475,7 +655,6 @@ struct lws_vhost {
 #endif
 #if LWS_MAX_SMP > 1
 	pthread_mutex_t lock;
-	char close_flow_vs_tsi[LWS_MAX_SMP];
 #endif
 
 #if defined(LWS_ROLE_H2)
@@ -504,9 +683,6 @@ struct lws_vhost {
 	const char *name;
 	const char *iface;
 
-	void (*finalize)(struct lws_vhost *vh, void *arg);
-	void *finalize_arg;
-
 #if !defined(LWS_WITH_ESP32) && !defined(OPTEE_TA) && !defined(WIN32)
 	int bind_iface;
 #endif
@@ -514,7 +690,7 @@ struct lws_vhost {
 	void **protocol_vh_privs;
 	const struct lws_protocol_vhost_options *pvo;
 	const struct lws_protocol_vhost_options *headers;
-	struct lws_dll_lws *same_vh_protocol_heads;
+	struct lws **same_vh_protocol_list;
 	struct lws_vhost *no_listener_vhost_list;
 #if !defined(LWS_NO_CLIENT)
 	struct lws_dll_lws dll_active_client_conns;
@@ -540,8 +716,6 @@ struct lws_vhost {
 	int keepalive_timeout;
 	int timeout_secs_ah_idle;
 
-	int count_bound_wsi;
-
 #ifdef LWS_WITH_ACCESS_LOG
 	int log_fd;
 #endif
@@ -553,13 +727,6 @@ struct lws_vhost {
 	unsigned char raw_protocol_index;
 };
 
-void
-lws_vhost_bind_wsi(struct lws_vhost *vh, struct lws *wsi);
-void
-lws_vhost_unbind_wsi(struct lws *wsi);
-void
-__lws_vhost_destroy2(struct lws_vhost *vh);
-
 struct lws_deferred_free
 {
 	struct lws_deferred_free *next;
@@ -624,7 +791,8 @@ struct lws_context {
 	struct lws_context_per_thread pt[LWS_MAX_SMP];
 	struct lws_conn_stats conn_stats;
 #if LWS_MAX_SMP > 1
-	struct lws_mutex_refcount mr;
+	pthread_mutex_t lock;
+	int lock_depth;
 #endif
 #ifdef _WIN32
 /* different implementation between unix and windows */
@@ -637,11 +805,6 @@ struct lws_context {
 	struct lws_vhost *vhost_pending_destruction_list;
 	struct lws_plugin *plugin_list;
 	struct lws_deferred_free *deferred_free_list;
-
-#if defined(LWS_WITH_THREADPOOL)
-	struct lws_threadpool *tp_list_head;
-#endif
-
 #if defined(LWS_WITH_PEER_LIMITS)
 	struct lws_peer **pl_hash_table;
 	struct lws_peer *peer_wait_list;
@@ -726,6 +889,14 @@ struct lws_context {
 	unsigned int doing_protocol_init:1;
 	unsigned int done_protocol_destroy_cb:1;
 	unsigned int finalize_destroy_after_internal_loops_stopped:1;
+	/*
+	 * set to the Thread ID that's doing the service loop just before entry
+	 * to poll indicates service thread likely idling in poll()
+	 * volatile because other threads may check it as part of processing
+	 * for pollfd event change.
+	 */
+	volatile int service_tid;
+	int service_tid_detected;
 
 	short count_threads;
 	short plugin_protocol_count;
@@ -738,7 +909,7 @@ struct lws_context {
 };
 
 int
-lws_check_deferred_free(struct lws_context *context, int tsi, int force);
+lws_check_deferred_free(struct lws_context *context, int force);
 
 #define lws_get_context_protocol(ctx, x) ctx->vhost_list->protocols[x]
 #define lws_get_vh_protocol(vh, x) vh->protocols[x]
@@ -774,13 +945,13 @@ enum {
 	LWS_EV_START = (1 << 2),
 	LWS_EV_STOP = (1 << 3),
 
-	LWS_EV_PREPARE_DELETION = (1u << 31),
+	LWS_EV_PREPARE_DELETION = (1 << 31),
 };
 
 
 #if defined(LWS_WITH_ESP32)
 LWS_EXTERN int
-lws_find_string_in_file(const char *filename, const char *str, int stringlen);
+lws_find_string_in_file(const char *filename, const char *string, int stringlen);
 #endif
 
 #ifdef LWS_WITH_IPV6
@@ -855,9 +1026,6 @@ struct lws {
 #if defined(LWS_ROLE_WS)
 	struct _lws_websocket_related *ws; /* allocated if we upgrade to ws */
 #endif
-#if defined(LWS_ROLE_DBUS)
-	struct _lws_dbus_mode_related dbus;
-#endif
 
 	const struct lws_role_ops *role_ops;
 	lws_wsi_state_t	wsistate;
@@ -865,8 +1033,7 @@ struct lws {
 
 	/* lifetime members */
 
-#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || \
-    defined(LWS_WITH_LIBEVENT)
+#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT)
 	struct lws_io_watcher w_read;
 #endif
 #if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBEVENT)
@@ -882,16 +1049,12 @@ struct lws {
 	struct lws *sibling_list; /* subsequent children at same level */
 
 	const struct lws_protocols *protocol;
-	struct lws_dll_lws same_vh_protocol;
+	struct lws **same_vh_protocol_prev, *same_vh_protocol_next;
 
 	struct lws_dll_lws dll_timeout;
 	struct lws_dll_lws dll_hrtimer;
 	struct lws_dll_lws dll_buflist; /* guys with pending rxflow */
 
-#if defined(LWS_WITH_THREADPOOL)
-	struct lws_threadpool_task *tp_task;
-#endif
-
 #if defined(LWS_WITH_PEER_LIMITS)
 	struct lws_peer *peer;
 #endif
@@ -907,8 +1070,10 @@ struct lws {
 	void *user_space;
 	void *opaque_parent_data;
 
-	struct lws_buflist *buflist;		/* input-side buflist */
-	struct lws_buflist *buflist_out;	/* output-side buflist */
+	struct lws_buflist *buflist;
+
+	/* truncated send handling */
+	unsigned char *trunc_alloc; /* non-NULL means buffering in progress */
 
 #if defined(LWS_WITH_TLS)
 	struct lws_lws_tls tls;
@@ -933,7 +1098,9 @@ struct lws {
 	/* ints */
 #define LWS_NO_FDS_POS (-1)
 	int position_in_fds_table;
-
+	unsigned int trunc_alloc_len; /* size of malloc */
+	unsigned int trunc_offset; /* where we are in terms of spilling */
+	unsigned int trunc_len; /* how much is buffered */
 #ifndef LWS_NO_CLIENT
 	int chunk_remaining;
 #endif
@@ -961,18 +1128,18 @@ struct lws {
 	unsigned int waiting_to_send_close_frame:1;
 	unsigned int close_needs_ack:1;
 	unsigned int ipv6:1;
+	unsigned int parent_carries_io:1;
 	unsigned int parent_pending_cb_on_writable:1;
 	unsigned int cgi_stdout_zero_length:1;
 	unsigned int seen_zero_length_recv:1;
 	unsigned int rxflow_will_be_applied:1;
 	unsigned int event_pipe:1;
+	unsigned int on_same_vh_list:1;
 	unsigned int handling_404:1;
 	unsigned int protocol_bind_balance:1;
-	unsigned int unix_skt:1;
 
 	unsigned int could_have_pending:1; /* detect back-to-back writes */
 	unsigned int outer_will_close:1;
-	unsigned int shadow:1; /* we do not control fd lifecycle at all */
 
 #ifdef LWS_WITH_ACCESS_LOG
 	unsigned int access_log_pending:1;
@@ -1027,9 +1194,6 @@ struct lws {
 	volatile char leave_pollout_active;
 };
 
-LWS_EXTERN char *
-lws_strdup(const char *s);
-
 #define lws_is_flowcontrolled(w) (!!(wsi->rxflow_bitmap))
 
 void
@@ -1079,9 +1243,6 @@ lws_latency(struct lws_context *context, struct lws *wsi, const char *action,
 	    int ret, int completion);
 #endif
 
-static LWS_INLINE int
-lws_has_buffered_out(struct lws *wsi) { return !!wsi->buflist_out; }
-
 LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_ws_client_rx_sm(struct lws *wsi, unsigned char c);
 
@@ -1101,7 +1262,22 @@ LWS_EXTERN int
 lws_service_flag_pending(struct lws_context *context, int tsi);
 
 LWS_EXTERN int
-__lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *p);
+lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *p);
+
+#if defined(_WIN32)
+LWS_EXTERN struct lws *
+wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd);
+
+LWS_EXTERN int
+insert_wsi(struct lws_context *context, struct lws *wsi);
+
+LWS_EXTERN int
+delete_from_fd(struct lws_context *context, lws_sockfd_type fd);
+#else
+#define wsi_from_fd(A,B)  A->lws_lookup[B - lws_plat_socket_offset()]
+#define insert_wsi(A,B)   assert(A->lws_lookup[B->desc.sockfd - lws_plat_socket_offset()] == 0); A->lws_lookup[B->desc.sockfd - lws_plat_socket_offset()]=B
+#define delete_from_fd(A,B) A->lws_lookup[B - lws_plat_socket_offset()]=0
+#endif
 
 LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 __insert_wsi_socket_into_fds(struct lws_context *context, struct lws *wsi);
@@ -1129,7 +1305,7 @@ LWS_EXTERN int
 lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd);
 
 LWS_EXTERN struct lws *
-lws_http_client_connect_via_info2(struct lws *wsi);
+lws_client_connect_via_info2(struct lws *wsi);
 
 
 
@@ -1167,8 +1343,10 @@ user_callback_handle_rxflow(lws_callback_function, struct lws *wsi,
 			    void *in, size_t len);
 
 LWS_EXTERN int
-lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd,
-			    int unix_skt);
+lws_plat_socket_offset(void);
+
+LWS_EXTERN int
+lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd);
 
 LWS_EXTERN int
 lws_plat_check_connection_error(struct lws *wsi);
@@ -1251,7 +1429,7 @@ LWS_EXTERN void lwsl_emit_stderr(int level, const char *line);
 static LWS_INLINE void
 lws_pt_mutex_init(struct lws_context_per_thread *pt)
 {
-	lws_mutex_refcount_init(&pt->mr);
+	pthread_mutex_init(&pt->lock, NULL);
 	pthread_mutex_init(&pt->lock_stats, NULL);
 }
 
@@ -1259,11 +1437,34 @@ static LWS_INLINE void
 lws_pt_mutex_destroy(struct lws_context_per_thread *pt)
 {
 	pthread_mutex_destroy(&pt->lock_stats);
-	lws_mutex_refcount_destroy(&pt->mr);
+	pthread_mutex_destroy(&pt->lock);
 }
 
-#define lws_pt_lock(pt, reason) lws_mutex_refcount_lock(&pt->mr, reason)
-#define lws_pt_unlock(pt) lws_mutex_refcount_unlock(&pt->mr)
+static LWS_INLINE void
+lws_pt_lock(struct lws_context_per_thread *pt, const char *reason)
+{
+	if (pt->lock_owner == pthread_self()) {
+		pt->lock_depth++;
+		return;
+	}
+	pthread_mutex_lock(&pt->lock);
+	pt->last_lock_reason = reason;
+	pt->lock_owner = pthread_self();
+	//lwsl_notice("tid %d: lock %s\n", pt->tid, reason);
+}
+
+static LWS_INLINE void
+lws_pt_unlock(struct lws_context_per_thread *pt)
+{
+	if (pt->lock_depth) {
+		pt->lock_depth--;
+		return;
+	}
+	pt->last_lock_reason = "free";
+	pt->lock_owner = 0;
+	//lwsl_notice("tid %d: unlock %s\n", pt->tid, pt->last_lock_reason);
+	pthread_mutex_unlock(&pt->lock);
+}
 
 static LWS_INLINE void
 lws_pt_stats_lock(struct lws_context_per_thread *pt)
@@ -1277,8 +1478,17 @@ lws_pt_stats_unlock(struct lws_context_per_thread *pt)
 	pthread_mutex_unlock(&pt->lock_stats);
 }
 
-#define lws_context_lock(c, reason) lws_mutex_refcount_lock(&c->mr, reason)
-#define lws_context_unlock(c) lws_mutex_refcount_unlock(&c->mr)
+static LWS_INLINE void
+lws_context_lock(struct lws_context *context)
+{
+	pthread_mutex_lock(&context->lock);
+}
+
+static LWS_INLINE void
+lws_context_unlock(struct lws_context *context)
+{
+	pthread_mutex_unlock(&context->lock);
+}
 
 static LWS_INLINE void
 lws_vhost_lock(struct lws_vhost *vhost)
@@ -1298,7 +1508,7 @@ lws_vhost_unlock(struct lws_vhost *vhost)
 #define lws_pt_mutex_destroy(_a) (void)(_a)
 #define lws_pt_lock(_a, b) (void)(_a)
 #define lws_pt_unlock(_a) (void)(_a)
-#define lws_context_lock(_a, _b) (void)(_a)
+#define lws_context_lock(_a) (void)(_a)
 #define lws_context_unlock(_a) (void)(_a)
 #define lws_vhost_lock(_a) (void)(_a)
 #define lws_vhost_unlock(_a) (void)(_a)
@@ -1356,7 +1566,7 @@ lws_handshake_server(struct lws *wsi, unsigned char **buf, size_t len);
 LWS_EXTERN int
 lws_access_log(struct lws *wsi);
 LWS_EXTERN void
-lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int len, int meth);
+lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int meth);
 #else
 #define lws_access_log(_a)
 #endif
@@ -1371,8 +1581,7 @@ int
 lws_protocol_init(struct lws_context *context);
 
 int
-lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p,
-		  const char *reason);
+lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p);
 
 const struct lws_http_mount *
 lws_find_mount(struct lws *wsi, const char *uri_ptr, int uri_len);
@@ -1396,6 +1605,9 @@ void lws_free(void *p);
 #define lws_free_set_NULL(P)	do { lws_realloc(P, 0, "free"); (P) = NULL; } while(0)
 #endif
 
+char *
+lws_strdup(const char *s);
+
 int
 lws_plat_pipe_create(struct lws *wsi);
 int
@@ -1405,8 +1617,8 @@ lws_plat_pipe_close(struct lws *wsi);
 int
 lws_create_event_pipes(struct lws_context *context);
 
-int
-lws_plat_apply_FD_CLOEXEC(int n);
+int lws_open(const char *__file, int __oflag, ...);
+void lws_plat_apply_FD_CLOEXEC(int n);
 
 const struct lws_plat_file_ops *
 lws_vfs_select_fops(const struct lws_plat_file_ops *fops, const char *vfs_path,
@@ -1441,33 +1653,27 @@ LWS_EXTERN int
 lws_plat_service(struct lws_context *context, int timeout_ms);
 LWS_EXTERN LWS_VISIBLE int
 _lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi);
-
-LWS_EXTERN int
-lws_pthread_self_to_tsi(struct lws_context *context);
-
 LWS_EXTERN int
 lws_plat_init(struct lws_context *context,
 	      const struct lws_context_creation_info *info);
 LWS_EXTERN void
 lws_plat_drop_app_privileges(const struct lws_context_creation_info *info);
+LWS_EXTERN unsigned long long
+time_in_microseconds(void);
 LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
 lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt);
 LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_plat_inet_pton(int af, const char *src, void *dst);
 
-LWS_EXTERN int
-lws_check_byte_utf8(unsigned char state, unsigned char c);
 LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_check_utf8(unsigned char *state, unsigned char *buf, size_t len);
-LWS_EXTERN int alloc_file(struct lws_context *context, const char *filename,
-			  uint8_t **buf, lws_filepos_t *amount);
+LWS_EXTERN int alloc_file(struct lws_context *context, const char *filename, uint8_t **buf,
+		                lws_filepos_t *amount);
 
 
 LWS_EXTERN void
 lws_same_vh_protocol_remove(struct lws *wsi);
 LWS_EXTERN void
-__lws_same_vh_protocol_remove(struct lws *wsi);
-LWS_EXTERN void
 lws_same_vh_protocol_insert(struct lws *wsi, int n);
 
 LWS_EXTERN int
@@ -1497,8 +1703,7 @@ void socks_generate_msg(struct lws *wsi, enum socks_msg_type type,
 void
 lws_peer_track_wsi_close(struct lws_context *context, struct lws_peer *peer);
 int
-lws_peer_confirm_ah_attach_ok(struct lws_context *context,
-			      struct lws_peer *peer);
+lws_peer_confirm_ah_attach_ok(struct lws_context *context, struct lws_peer *peer);
 void
 lws_peer_track_ah_detach(struct lws_context *context, struct lws_peer *peer);
 void
@@ -1512,13 +1717,11 @@ void
 lws_peer_dump_from_wsi(struct lws *wsi);
 #endif
 
-#ifdef LWS_WITH_HUBBUB
+#ifdef LWS_WITH_HTTP_PROXY
 hubbub_error
 html_parser_cb(const hubbub_token *token, void *pw);
 #endif
 
-int
-lws_threadpool_tsi_context(struct lws_context *context, int tsi);
 
 void
 __lws_remove_from_timeout_list(struct lws *wsi);
@@ -1543,12 +1746,11 @@ lws_buflist_aware_consume(struct lws *wsi, struct lws_tokens *ebuf, int used,
 
 
 char *
-lws_generate_client_ws_handshake(struct lws *wsi, char *p, const char *conn1);
+lws_generate_client_ws_handshake(struct lws *wsi, char *p);
 int
 lws_client_ws_upgrade(struct lws *wsi, const char **cce);
 int
-lws_create_client_ws_object(const struct lws_client_connect_info *i,
-			    struct lws *wsi);
+lws_create_client_ws_object(struct lws_client_connect_info *i, struct lws *wsi);
 int
 lws_alpn_comma_to_openssl(const char *comma, uint8_t *os, int len);
 int
@@ -1562,11 +1764,6 @@ void
 lws_destroy_event_pipe(struct lws *wsi);
 void
 lws_context_destroy2(struct lws_context *context);
-int
-lws_role_call_client_bind(struct lws *wsi,
-			  const struct lws_client_connect_info *i);
-void
-lws_remove_child_from_any_parent(struct lws *wsi);
 
 #ifdef __cplusplus
 };
diff --git a/thirdparty/libwebsockets/lib/core/service.c b/thirdparty/libwebsockets/core/service.c
index ef251409cb..6523058814 100644
--- a/thirdparty/libwebsockets/lib/core/service.c
+++ b/thirdparty/libwebsockets/core/service.c
@@ -30,7 +30,7 @@ lws_callback_as_writeable(struct lws *wsi)
 	lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_C_WRITEABLE_CB, 1);
 #if defined(LWS_WITH_STATS)
 	if (wsi->active_writable_req_us) {
-		uint64_t ul = lws_time_in_microseconds() -
+		uint64_t ul = time_in_microseconds() -
 			      wsi->active_writable_req_us;
 
 		lws_stats_atomic_bump(wsi->context, pt,
@@ -74,13 +74,12 @@ lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd)
 	 * Priority 1: pending truncated sends are incomplete ws fragments
 	 *	       If anything else sent first the protocol would be
 	 *	       corrupted.
-	 *
-	 *	       These are post- any compression transform
 	 */
 
-	if (lws_has_buffered_out(wsi)) {
+	if (wsi->trunc_len) {
 		//lwsl_notice("%s: completing partial\n", __func__);
-		if (lws_issue_raw(wsi, NULL, 0) < 0) {
+		if (lws_issue_raw(wsi, wsi->trunc_alloc + wsi->trunc_offset,
+				  wsi->trunc_len) < 0) {
 			lwsl_info("%s signalling to close\n", __func__);
 			goto bail_die;
 		}
@@ -92,28 +91,6 @@ lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd)
 			goto bail_die; /* retry closing now */
 		}
 
-	/* Priority 2: pre- compression transform */
-
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (wsi->http.comp_ctx.buflist_comp ||
-	    wsi->http.comp_ctx.may_have_more) {
-		enum lws_write_protocol wp = LWS_WRITE_HTTP;
-
-		lwsl_info("%s: completing comp partial (buflist_comp %p, may %d)\n",
-				__func__, wsi->http.comp_ctx.buflist_comp,
-				wsi->http.comp_ctx.may_have_more
-				);
-
-		if (wsi->role_ops->write_role_protocol(wsi, NULL, 0, &wp) < 0) {
-			lwsl_info("%s signalling to close\n", __func__);
-			goto bail_die;
-		}
-		lws_callback_on_writable(wsi);
-
-		goto bail_ok;
-	}
-#endif
-
 #ifdef LWS_WITH_CGI
 	/*
 	 * A cgi master's wire protocol remains h1 or h2.  He is just getting
@@ -149,6 +126,13 @@ lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd)
 
 	/* one shot */
 
+	if (wsi->parent_carries_io) {
+		vwsi->handling_pollout = 0;
+		vwsi->leave_pollout_active = 0;
+
+		return lws_callback_as_writeable(wsi);
+	}
+
 	if (pollfd) {
 		int eff = vwsi->leave_pollout_active;
 
@@ -232,9 +216,7 @@ static int
 __lws_service_timeout_check(struct lws *wsi, time_t sec)
 {
 	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 	int n = 0;
-#endif
 
 	(void)n;
 
@@ -246,11 +228,9 @@ __lws_service_timeout_check(struct lws *wsi, time_t sec)
 	    lws_compare_time_t(wsi->context, sec, wsi->pending_timeout_set) >
 			       wsi->pending_timeout_limit) {
 
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 		if (wsi->desc.sockfd != LWS_SOCK_INVALID &&
 		    wsi->position_in_fds_table >= 0)
 			n = pt->fds[wsi->position_in_fds_table].events;
-#endif
 
 		lws_stats_atomic_bump(wsi->context, pt, LWSSTATS_C_TIMEOUTS, 1);
 
@@ -338,10 +318,9 @@ lws_service_adjust_timeout(struct lws_context *context, int timeout_ms, int tsi)
 {
 	struct lws_context_per_thread *pt = &context->pt[tsi];
 
-	/*
-	 * Figure out if we really want to wait in poll()... we only need to
-	 * wait if really nothing already to do and we have to wait for
-	 * something from network
+	/* Figure out if we really want to wait in poll()
+	 * We only need to wait if really nothing already to do and we have
+	 * to wait for something from network
 	 */
 #if defined(LWS_ROLE_WS) && !defined(LWS_WITHOUT_EXTENSIONS)
 	/* 1) if we know we are draining rx ext, do not wait in poll */
@@ -349,31 +328,23 @@ lws_service_adjust_timeout(struct lws_context *context, int timeout_ms, int tsi)
 		return 0;
 #endif
 
-	/* 2) if we know we have non-network pending data,
-	 *    do not wait in poll */
+	/* 2) if we know we have non-network pending data, do not wait in poll */
 
 	if (pt->context->tls_ops &&
-	    pt->context->tls_ops->fake_POLLIN_for_buffered &&
-	    pt->context->tls_ops->fake_POLLIN_for_buffered(pt))
+	    pt->context->tls_ops->fake_POLLIN_for_buffered)
+		if (pt->context->tls_ops->fake_POLLIN_for_buffered(pt))
 			return 0;
 
-	/*
-	 * 3) If there is any wsi with rxflow buffered and in a state to process
+	/* 3) If there is any wsi with rxflow buffered and in a state to process
 	 *    it, we should not wait in poll
 	 */
 
-	lws_start_foreach_dll(struct lws_dll_lws *, d,
-			      pt->dll_head_buflist.next) {
+	lws_start_foreach_dll(struct lws_dll_lws *, d, pt->dll_head_buflist.next) {
 		struct lws *wsi = lws_container_of(d, struct lws, dll_buflist);
 
 		if (lwsi_state(wsi) != LRS_DEFERRING_ACTION)
 			return 0;
 
-	/*
-	 * 4) If any guys with http compression to spill, we shouldn't wait in
-	 *    poll but hurry along and service them
-	 */
-
 	} lws_end_foreach_dll(d);
 
 	return timeout_ms;
@@ -460,10 +431,8 @@ lws_buflist_aware_consume(struct lws *wsi, struct lws_tokens *ebuf, int used,
 		if (m < 0)
 			return 1; /* OOM */
 		if (m) {
-			lwsl_debug("%s: added %p to rxflow list\n",
-				   __func__, wsi);
-			lws_dll_lws_add_front(&wsi->dll_buflist,
-					      &pt->dll_head_buflist);
+			lwsl_debug("%s: added %p to rxflow list\n", __func__, wsi);
+			lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
 		}
 	}
 
@@ -518,6 +487,10 @@ int
 lws_service_flag_pending(struct lws_context *context, int tsi)
 {
 	struct lws_context_per_thread *pt = &context->pt[tsi];
+
+#if defined(LWS_WITH_TLS)
+	struct lws *wsi, *wsi_next;
+#endif
 	int forced = 0;
 
 	lws_pt_lock(pt, __func__);
@@ -547,11 +520,9 @@ lws_service_flag_pending(struct lws_context *context, int tsi)
 	 * service to use up the buffered incoming data, even though their
 	 * network socket may have nothing
 	 */
-	lws_start_foreach_dll_safe(struct lws_dll_lws *, p, p1,
-				   pt->tls.pending_tls_head.next) {
-		struct lws *wsi = lws_container_of(p, struct lws,
-						   tls.pending_tls_list);
-
+	wsi = pt->tls.pending_read_list;
+	while (wsi) {
+		wsi_next = wsi->tls.pending_read_list_next;
 		pt->fds[wsi->position_in_fds_table].revents |=
 			pt->fds[wsi->position_in_fds_table].events & LWS_POLLIN;
 		if (pt->fds[wsi->position_in_fds_table].revents & LWS_POLLIN) {
@@ -565,7 +536,8 @@ lws_service_flag_pending(struct lws_context *context, int tsi)
 			__lws_ssl_remove_wsi_from_buffered_list(wsi);
 		}
 
-	} lws_end_foreach_dll_safe(p, p1);
+		wsi = wsi_next;
+	}
 #endif
 
 	lws_pt_unlock(pt);
@@ -578,21 +550,18 @@ lws_service_periodic_checks(struct lws_context *context,
 			    struct lws_pollfd *pollfd, int tsi)
 {
 	struct lws_context_per_thread *pt = &context->pt[tsi];
-	struct lws_timed_vh_protocol *tmr;
 	lws_sockfd_type our_fd = 0, tmp_fd;
 	struct lws *wsi;
 	int timed_out = 0;
 	time_t now;
 #if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 	struct allocated_headers *ah;
-	int n, m;
+	int m;
 #endif
 
 	if (!context->protocol_init_done)
-		if (lws_protocol_init(context)) {
-			lwsl_err("%s: lws_protocol_init failed\n", __func__);
+		if (lws_protocol_init(context))
 			return -1;
-		}
 
 	time(&now);
 
@@ -640,7 +609,7 @@ lws_service_periodic_checks(struct lws_context *context,
 #endif
 
 	lws_plat_service_periodic(context);
-	lws_check_deferred_free(context, tsi, 0);
+	lws_check_deferred_free(context, 0);
 
 #if defined(LWS_WITH_PEER_LIMITS)
 	lws_peer_cull_peer_wait_list(context);
@@ -662,7 +631,7 @@ lws_service_periodic_checks(struct lws_context *context,
 		our_fd = pollfd->fd;
 
 	/*
-	 * Phase 1: check every wsi on our pt's timeout check list
+	 * Phase 1: check every wsi on the timeout check list
 	 */
 
 	lws_pt_lock(pt, __func__);
@@ -732,7 +701,8 @@ lws_service_periodic_checks(struct lws_context *context,
 				continue;
 			}
 
-			if (lws_hdr_copy(wsi, buf, sizeof buf, m) > 0) {
+			if (lws_hdr_copy(wsi, buf,
+					 sizeof buf, m) > 0) {
 				buf[sizeof(buf) - 1] = '\0';
 
 				lwsl_notice("   %s = %s\n",
@@ -779,126 +749,37 @@ lws_service_periodic_checks(struct lws_context *context,
 	 * Phase 3: vhost / protocol timer callbacks
 	 */
 
-	/* 3a: lock, collect, and remove vh timers that are pending */
-
-	lws_context_lock(context, "expired vh timers"); /* context ---------- */
-
-	n = 0;
-
-	/*
-	 * first, under the context lock, get a count of the number of
-	 * expired timers so we can allocate for them (or not, cleanly)
-	 */
-
-	lws_start_foreach_ll(struct lws_vhost *, v, context->vhost_list) {
-
-		if (v->timed_vh_protocol_list) {
-
-			lws_start_foreach_ll_safe(struct lws_timed_vh_protocol *,
-					q, v->timed_vh_protocol_list, next) {
-				if (now >= q->time && q->tsi_req == tsi)
-					n++;
-			} lws_end_foreach_ll_safe(q);
-		}
-
-	} lws_end_foreach_ll(v, vhost_next);
-
-	/* if nothing to do, unlock and move on to the next vhost */
-
-	if (!n) {
-		lws_context_unlock(context); /* ----------- context */
-		goto vh_timers_done;
-	}
-
-	/*
-	 * attempt to do the wsi and timer info allocation
-	 * first en bloc.  If it fails, we can just skip the rest and
-	 * the timers will still be pending next time.
-	 */
-
-	wsi = lws_zalloc(sizeof(*wsi), "cbwsi");
-	if (!wsi) {
-		/*
-		 * at this point, we haven't cleared any vhost
-		 * timers.  We can fail out and retry cleanly
-		 * next periodic check
-		 */
-		lws_context_unlock(context); /* ----------- context */
-		goto vh_timers_done;
-	}
-	wsi->context = context;
-
-	tmr = lws_zalloc(sizeof(*tmr) * n, "cbtmr");
-	if (!tmr) {
-		/* again OOM here can be handled cleanly */
-		lws_free(wsi);
-		lws_context_unlock(context); /* ----------- context */
-		goto vh_timers_done;
-	}
-
-	/* so we have the allocation for n pending timers... */
-
-	m = 0;
+	wsi = NULL;
 	lws_start_foreach_ll(struct lws_vhost *, v, context->vhost_list) {
-
+		struct lws_timed_vh_protocol *nx;
 		if (v->timed_vh_protocol_list) {
-
-			lws_vhost_lock(v); /* vhost ------------------------- */
-
-			lws_start_foreach_ll_safe(struct lws_timed_vh_protocol *,
-					q, v->timed_vh_protocol_list, next) {
-
-				/* only do n */
-				if (m == n)
-					break;
-
-				if (now >= q->time && q->tsi_req == tsi) {
-
-					/*
-					 * tmr is an allocated array.
-					 * Ignore the linked-list.
-					 */
-					tmr[m].vhost = v;
-					tmr[m].protocol = q->protocol;
-					tmr[m++].reason = q->reason;
-
-					/* take the timer out now we took
-					 * responsibility */
-					__lws_timed_callback_remove(v, q);
+			lws_start_foreach_ll(struct lws_timed_vh_protocol *,
+					q, v->timed_vh_protocol_list) {
+				if (now >= q->time) {
+					if (!wsi)
+						wsi = lws_zalloc(sizeof(*wsi), "cbwsi");
+					wsi->context = context;
+					wsi->vhost = v;
+					wsi->protocol = q->protocol;
+					lwsl_debug("timed cb: vh %s, protocol %s, reason %d\n", v->name, q->protocol->name, q->reason);
+					q->protocol->callback(wsi, q->reason, NULL, NULL, 0);
+					nx = q->next;
+					lws_timed_callback_remove(v, q);
+					q = nx;
+					continue; /* we pointed ourselves to the next from the now-deleted guy */
 				}
-
-			} lws_end_foreach_ll_safe(q);
-
-			lws_vhost_unlock(v); /* ----------------------- vhost */
+			} lws_end_foreach_ll(q, next);
 		}
-
 	} lws_end_foreach_ll(v, vhost_next);
-	lws_context_unlock(context); /* ---------------------------- context */
-
-	/* 3b: call the vh timer callbacks outside any lock */
-
-	for (m = 0; m < n; m++) {
-
-		wsi->vhost = tmr[m].vhost; /* not a real bound wsi */
-		wsi->protocol = tmr[m].protocol;
-
-		lwsl_debug("%s: timed cb: vh %s, protocol %s, reason %d\n",
-			   __func__, tmr[m].vhost->name, tmr[m].protocol->name,
-			   tmr[m].reason);
-		tmr[m].protocol->callback(wsi, tmr[m].reason, NULL, NULL, 0);
-	}
-
-	lws_free(tmr);
-	lws_free(wsi);
-
-vh_timers_done:
+	if (wsi)
+		lws_free(wsi);
 
 	/*
 	 * Phase 4: check for unconfigured vhosts due to required
 	 *	    interface missing before
 	 */
 
-	lws_context_lock(context, "periodic checks");
+	lws_context_lock(context);
 	lws_start_foreach_llp(struct lws_vhost **, pv,
 			      context->no_listener_vhost_list) {
 		struct lws_vhost *v = *pv;
@@ -931,7 +812,7 @@ vh_timers_done:
 	    context->tls_ops->periodic_housekeeping)
 		context->tls_ops->periodic_housekeeping(context, now);
 
-	return 0;
+	return timed_out;
 }
 
 LWS_VISIBLE int
@@ -944,11 +825,9 @@ lws_service_fd_tsi(struct lws_context *context, struct lws_pollfd *pollfd,
 	if (!context || context->being_destroyed1)
 		return -1;
 
-	/* the case there's no pollfd to service, we just want to do periodic */
-	if (!pollfd) {
-		lws_service_periodic_checks(context, pollfd, tsi);
-		return -2;
-	}
+	/* the socket we came to service timed out, nothing to do */
+	if (lws_service_periodic_checks(context, pollfd, tsi) || !pollfd)
+		return 0;
 
 	/* no, here to service a socket descriptor */
 	wsi = wsi_from_fd(context, pollfd->fd);
@@ -1044,9 +923,6 @@ handled:
 #endif
 	pollfd->revents = 0;
 
-	/* check the timeout situation if we didn't in the last second */
-	lws_service_periodic_checks(context, pollfd, tsi);
-
 	lws_pt_lock(pt, __func__);
 	__lws_hrtimer_service(pt);
 	lws_pt_unlock(pt);
@@ -1093,9 +969,6 @@ lws_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
 	int n;
 
 	pt->inside_service = 1;
-#if LWS_MAX_SMP > 1
-	pt->self = pthread_self();
-#endif
 
 	if (context->event_loop_ops->run_pt) {
 		/* we are configured for an event loop */
diff --git a/thirdparty/libwebsockets/lib/event-libs/poll/poll.c b/thirdparty/libwebsockets/event-libs/poll/poll.c
index 09af5b15d8..09af5b15d8 100644
--- a/thirdparty/libwebsockets/lib/event-libs/poll/poll.c
+++ b/thirdparty/libwebsockets/event-libs/poll/poll.c
diff --git a/thirdparty/libwebsockets/lib/event-libs/poll/private.h b/thirdparty/libwebsockets/event-libs/poll/private.h
index ca313ebfb0..ca313ebfb0 100644
--- a/thirdparty/libwebsockets/lib/event-libs/poll/private.h
+++ b/thirdparty/libwebsockets/event-libs/poll/private.h
diff --git a/thirdparty/libwebsockets/lib/event-libs/private.h b/thirdparty/libwebsockets/event-libs/private.h
index 58bca946b5..c36d39c8c2 100644
--- a/thirdparty/libwebsockets/lib/event-libs/private.h
+++ b/thirdparty/libwebsockets/event-libs/private.h
@@ -41,7 +41,7 @@ struct lws_event_loop_ops {
 	/* close handle manually  */
 	void (*close_handle_manually)(struct lws *wsi);
 	/* event loop accept processing  */
-	int (*accept)(struct lws *wsi);
+	void (*accept)(struct lws *wsi);
 	/* control wsi active events  */
 	void (*io)(struct lws *wsi, int flags);
 	/* run the event loop for a pt */
diff --git a/thirdparty/libwebsockets/include/libwebsockets.h b/thirdparty/libwebsockets/include/libwebsockets.h
deleted file mode 100644
index 7cc5c28b78..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets.h
+++ /dev/null
@@ -1,435 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-/** @file */
-
-#ifndef LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
-#define LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
-
-#ifdef __cplusplus
-#include <cstddef>
-#include <cstdarg>
-
-extern "C" {
-#else
-#include <stdarg.h>
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-
-#include "lws_config.h"
-
-/*
- * CARE: everything using cmake defines needs to be below here
- */
-
-#if defined(LWS_HAS_INTPTR_T)
-#include <stdint.h>
-#define lws_intptr_t intptr_t
-#else
-typedef unsigned long long lws_intptr_t;
-#endif
-
-#if defined(WIN32) || defined(_WIN32)
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN
-#endif
-
-#include <winsock2.h>
-#include <ws2tcpip.h>
-#include <stddef.h>
-#include <basetsd.h>
-#include <io.h>
-#ifndef _WIN32_WCE
-#include <fcntl.h>
-#else
-#define _O_RDONLY	0x0000
-#define O_RDONLY	_O_RDONLY
-#endif
-
-#define LWS_INLINE __inline
-#define LWS_VISIBLE
-#define LWS_WARN_UNUSED_RESULT
-#define LWS_WARN_DEPRECATED
-#define LWS_FORMAT(string_index)
-
-#if !defined(LWS_EXTERN)
-#ifdef LWS_DLL
-#ifdef LWS_INTERNAL
-#define LWS_EXTERN extern __declspec(dllexport)
-#else
-#define LWS_EXTERN extern __declspec(dllimport)
-#endif
-#else
-#define LWS_EXTERN
-#endif
-#endif
-
-#define LWS_INVALID_FILE INVALID_HANDLE_VALUE
-#define LWS_O_RDONLY _O_RDONLY
-#define LWS_O_WRONLY _O_WRONLY
-#define LWS_O_CREAT _O_CREAT
-#define LWS_O_TRUNC _O_TRUNC
-
-#ifndef __func__
-#define __func__ __FUNCTION__
-#endif
-
-#else /* NOT WIN32 */
-#include <unistd.h>
-#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
-#include <sys/capability.h>
-#endif
-
-#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__QNX__) || defined(__OpenBSD__)
-#include <sys/socket.h>
-#include <netinet/in.h>
-#endif
-
-#define LWS_INLINE inline
-#define LWS_O_RDONLY O_RDONLY
-#define LWS_O_WRONLY O_WRONLY
-#define LWS_O_CREAT O_CREAT
-#define LWS_O_TRUNC O_TRUNC
-
-#if !defined(LWS_PLAT_OPTEE) && !defined(OPTEE_TA) && !defined(LWS_WITH_ESP32)
-#include <poll.h>
-#include <netdb.h>
-#define LWS_INVALID_FILE -1
-#else
-#define getdtablesize() (30)
-#if defined(LWS_WITH_ESP32)
-#define LWS_INVALID_FILE NULL
-#else
-#define LWS_INVALID_FILE NULL
-#endif
-#endif
-
-#if defined(__GNUC__)
-
-/* warn_unused_result attribute only supported by GCC 3.4 or later */
-#if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
-#define LWS_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
-#else
-#define LWS_WARN_UNUSED_RESULT
-#endif
-
-#define LWS_VISIBLE __attribute__((visibility("default")))
-#define LWS_WARN_DEPRECATED __attribute__ ((deprecated))
-#define LWS_FORMAT(string_index) __attribute__ ((format(printf, string_index, string_index+1)))
-#else
-#define LWS_VISIBLE
-#define LWS_WARN_UNUSED_RESULT
-#define LWS_WARN_DEPRECATED
-#define LWS_FORMAT(string_index)
-#endif
-
-#if defined(__ANDROID__)
-#include <netinet/in.h>
-#include <unistd.h>
-#define getdtablesize() sysconf(_SC_OPEN_MAX)
-#endif
-
-#endif
-
-#if defined(LWS_WITH_LIBEV)
-#include <ev.h>
-#endif /* LWS_WITH_LIBEV */
-#ifdef LWS_WITH_LIBUV
-#include <uv.h>
-#ifdef LWS_HAVE_UV_VERSION_H
-#include <uv-version.h>
-#endif
-#ifdef LWS_HAVE_NEW_UV_VERSION_H
-#include <uv/version.h>
-#endif
-#endif /* LWS_WITH_LIBUV */
-#if defined(LWS_WITH_LIBEVENT)
-#include <event2/event.h>
-#endif /* LWS_WITH_LIBEVENT */
-
-#ifndef LWS_EXTERN
-#define LWS_EXTERN extern
-#endif
-
-#ifdef _WIN32
-#define random rand
-#else
-#if !defined(OPTEE_TA)
-#include <sys/time.h>
-#include <unistd.h>
-#endif
-#endif
-
-#if defined(LWS_WITH_TLS)
-
-#ifdef USE_WOLFSSL
-#ifdef USE_OLD_CYASSL
-#ifdef _WIN32
-/*
- * Include user-controlled settings for windows from
- * <wolfssl-root>/IDE/WIN/user_settings.h
- */
-#include <IDE/WIN/user_settings.h>
-#include <cyassl/ctaocrypt/settings.h>
-#else
-#include <cyassl/options.h>
-#endif
-#include <cyassl/openssl/ssl.h>
-#include <cyassl/error-ssl.h>
-
-#else
-#ifdef _WIN32
-/*
- * Include user-controlled settings for windows from
- * <wolfssl-root>/IDE/WIN/user_settings.h
- */
-#include <IDE/WIN/user_settings.h>
-#include <wolfssl/wolfcrypt/settings.h>
-#else
-#include <wolfssl/options.h>
-#endif
-#include <wolfssl/openssl/ssl.h>
-#include <wolfssl/error-ssl.h>
-#endif /* not USE_OLD_CYASSL */
-#else
-#if defined(LWS_WITH_MBEDTLS)
-#if defined(LWS_WITH_ESP32)
-/* this filepath is passed to us but without quotes or <> */
-#undef MBEDTLS_CONFIG_FILE
-#define MBEDTLS_CONFIG_FILE <mbedtls/esp_config.h>
-#endif
-#include <mbedtls/ssl.h>
-#else
-#include <openssl/ssl.h>
-#if !defined(LWS_WITH_MBEDTLS)
-#include <openssl/err.h>
-#endif
-#endif
-#endif /* not USE_WOLFSSL */
-#endif
-
-/*
- * Helpers for pthread mutex in user code... if lws is built for
- * multiple service threads, these resolve to pthread mutex
- * operations.  In the case LWS_MAX_SMP is 1 (the default), they
- * are all NOPs and no pthread type or api is referenced.
- */
-
-#if LWS_MAX_SMP > 1
-
-#include <pthread.h>
-
-#define lws_pthread_mutex(name) pthread_mutex_t name;
-
-static LWS_INLINE void
-lws_pthread_mutex_init(pthread_mutex_t *lock)
-{
-	pthread_mutex_init(lock, NULL);
-}
-
-static LWS_INLINE void
-lws_pthread_mutex_destroy(pthread_mutex_t *lock)
-{
-	pthread_mutex_destroy(lock);
-}
-
-static LWS_INLINE void
-lws_pthread_mutex_lock(pthread_mutex_t *lock)
-{
-	pthread_mutex_lock(lock);
-}
-
-static LWS_INLINE void
-lws_pthread_mutex_unlock(pthread_mutex_t *lock)
-{
-	pthread_mutex_unlock(lock);
-}
-
-#else
-#define lws_pthread_mutex(name)
-#define lws_pthread_mutex_init(_a)
-#define lws_pthread_mutex_destroy(_a)
-#define lws_pthread_mutex_lock(_a)
-#define lws_pthread_mutex_unlock(_a)
-#endif
-
-
-#define CONTEXT_PORT_NO_LISTEN -1
-#define CONTEXT_PORT_NO_LISTEN_SERVER -2
-
-#include <libwebsockets/lws-logs.h>
-
-
-#include <stddef.h>
-
-#ifndef lws_container_of
-#define lws_container_of(P,T,M)	((T *)((char *)(P) - offsetof(T, M)))
-#endif
-
-struct lws;
-
-typedef int64_t lws_usec_t;
-
-/* api change list for user code to test against */
-
-#define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_ARG
-
-/* the struct lws_protocols has the id field present */
-#define LWS_FEATURE_PROTOCOLS_HAS_ID_FIELD
-
-/* you can call lws_get_peer_write_allowance */
-#define LWS_FEATURE_PROTOCOLS_HAS_PEER_WRITE_ALLOWANCE
-
-/* extra parameter introduced in 917f43ab821 */
-#define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_LEN
-
-/* File operations stuff exists */
-#define LWS_FEATURE_FOPS
-
-
-#if defined(_WIN32)
-#if !defined(LWS_WIN32_HANDLE_TYPES)
-typedef SOCKET lws_sockfd_type;
-typedef HANDLE lws_filefd_type;
-#endif
-
-struct lws_pollfd {
-	lws_sockfd_type fd; /**< file descriptor */
-	SHORT events; /**< which events to respond to */
-	SHORT revents; /**< which events happened */
-};
-#define LWS_POLLHUP (FD_CLOSE)
-#define LWS_POLLIN (FD_READ | FD_ACCEPT)
-#define LWS_POLLOUT (FD_WRITE)
-#else
-
-
-#if defined(LWS_WITH_ESP32)
-#include <libwebsockets/lws-esp32.h>
-#else
-typedef int lws_sockfd_type;
-typedef int lws_filefd_type;
-#endif
-
-#define lws_pollfd pollfd
-#define LWS_POLLHUP (POLLHUP|POLLERR)
-#define LWS_POLLIN (POLLIN)
-#define LWS_POLLOUT (POLLOUT)
-#endif
-
-
-#if (defined(WIN32) || defined(_WIN32)) && !defined(__MINGW32__)
-/* ... */
-#define ssize_t SSIZE_T
-#endif
-
-#if defined(WIN32) && defined(LWS_HAVE__STAT32I64)
-#include <sys/types.h>
-#include <sys/stat.h>
-#endif
-
-#if defined(LWS_HAVE_STDINT_H)
-#include <stdint.h>
-#else
-#if defined(WIN32) || defined(_WIN32)
-/* !!! >:-[  */
-typedef unsigned __int32 uint32_t;
-typedef unsigned __int16 uint16_t;
-typedef unsigned __int8 uint8_t;
-#else
-typedef unsigned int uint32_t;
-typedef unsigned short uint16_t;
-typedef unsigned char uint8_t;
-#endif
-#endif
-
-typedef unsigned long long lws_filepos_t;
-typedef long long lws_fileofs_t;
-typedef uint32_t lws_fop_flags_t;
-
-/** struct lws_pollargs - argument structure for all external poll related calls
- * passed in via 'in' */
-struct lws_pollargs {
-	lws_sockfd_type fd;	/**< applicable socket descriptor */
-	int events;		/**< the new event mask */
-	int prev_events;	/**< the previous event mask */
-};
-
-struct lws_extension; /* needed even with ws exts disabled for create context */
-struct lws_token_limits;
-struct lws_context;
-struct lws_tokens;
-struct lws_vhost;
-struct lws;
-
-#include <libwebsockets/lws-ws-close.h>
-#include <libwebsockets/lws-callbacks.h>
-#include <libwebsockets/lws-ws-state.h>
-#include <libwebsockets/lws-ws-ext.h>
-#include <libwebsockets/lws-protocols-plugins.h>
-#include <libwebsockets/lws-plugin-generic-sessions.h>
-#include <libwebsockets/lws-context-vhost.h>
-#include <libwebsockets/lws-client.h>
-#include <libwebsockets/lws-http.h>
-#include <libwebsockets/lws-spa.h>
-#include <libwebsockets/lws-purify.h>
-#include <libwebsockets/lws-timeout-timer.h>
-#include <libwebsockets/lws-service.h>
-#include <libwebsockets/lws-write.h>
-#include <libwebsockets/lws-writeable.h>
-#include <libwebsockets/lws-adopt.h>
-#include <libwebsockets/lws-network-helper.h>
-#include <libwebsockets/lws-misc.h>
-#include <libwebsockets/lws-ring.h>
-#include <libwebsockets/lws-sha1-base64.h>
-#include <libwebsockets/lws-x509.h>
-#include <libwebsockets/lws-cgi.h>
-#include <libwebsockets/lws-vfs.h>
-#include <libwebsockets/lws-lejp.h>
-#include <libwebsockets/lws-stats.h>
-#include <libwebsockets/lws-threadpool.h>
-#include <libwebsockets/lws-tokenize.h>
-#include <libwebsockets/lws-lwsac.h>
-#include <libwebsockets/lws-fts.h>
-#include <libwebsockets/lws-diskcache.h>
-
-#if defined(LWS_WITH_TLS)
-
-#if defined(LWS_WITH_MBEDTLS)
-#include <mbedtls/sha1.h>
-#include <mbedtls/sha256.h>
-#include <mbedtls/sha512.h>
-#endif
-
-#include <libwebsockets/lws-genhash.h>
-#include <libwebsockets/lws-genrsa.h>
-#include <libwebsockets/lws-jwk.h>
-#include <libwebsockets/lws-jws.h>
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-adopt.h b/thirdparty/libwebsockets/include/libwebsockets/lws-adopt.h
deleted file mode 100644
index 256e3f9fdf..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-adopt.h
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup sock-adopt Socket adoption helpers
- * ##Socket adoption helpers
- *
- * When integrating with an external app with its own event loop, these can
- * be used to accept connections from someone else's listening socket.
- *
- * When using lws own event loop, these are not needed.
- */
-///@{
-
-/**
- * lws_adopt_socket() - adopt foreign socket as if listen socket accepted it
- * for the default vhost of context.
- *
- * \param context: lws context
- * \param accept_fd: fd of already-accepted socket to adopt
- *
- * Either returns new wsi bound to accept_fd, or closes accept_fd and
- * returns NULL, having cleaned up any new wsi pieces.
- *
- * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
- * to ws or just serve http.
- */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd);
-/**
- * lws_adopt_socket_vhost() - adopt foreign socket as if listen socket accepted
- * it for vhost
- *
- * \param vh: lws vhost
- * \param accept_fd: fd of already-accepted socket to adopt
- *
- * Either returns new wsi bound to accept_fd, or closes accept_fd and
- * returns NULL, having cleaned up any new wsi pieces.
- *
- * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
- * to ws or just serve http.
- */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_adopt_socket_vhost(struct lws_vhost *vh, lws_sockfd_type accept_fd);
-
-typedef enum {
-	LWS_ADOPT_RAW_FILE_DESC = 0,	/* convenience constant */
-	LWS_ADOPT_HTTP = 1,		/* flag: absent implies RAW */
-	LWS_ADOPT_SOCKET = 2,		/* flag: absent implies file descr */
-	LWS_ADOPT_ALLOW_SSL = 4,	/* flag: if set requires LWS_ADOPT_SOCKET */
-	LWS_ADOPT_FLAG_UDP = 16,	/* flag: socket is UDP */
-
-	LWS_ADOPT_RAW_SOCKET_UDP = LWS_ADOPT_SOCKET | LWS_ADOPT_FLAG_UDP,
-} lws_adoption_type;
-
-typedef union {
-	lws_sockfd_type sockfd;
-	lws_filefd_type filefd;
-} lws_sock_file_fd_type;
-
-#if !defined(LWS_WITH_ESP32)
-struct lws_udp {
-	struct sockaddr sa;
-	socklen_t salen;
-
-	struct sockaddr sa_pending;
-	socklen_t salen_pending;
-};
-#endif
-
-/*
-* lws_adopt_descriptor_vhost() - adopt foreign socket or file descriptor
-* if socket descriptor, should already have been accepted from listen socket
-*
-* \param vhost: lws vhost
-* \param type: OR-ed combinations of lws_adoption_type flags
-* \param fd: union with either .sockfd or .filefd set
-* \param vh_prot_name: NULL or vh protocol name to bind raw connection to
-* \param parent: NULL or struct lws to attach new_wsi to as a child
-*
-* Either returns new wsi bound to accept_fd, or closes accept_fd and
-* returns NULL, having cleaned up any new wsi pieces.
-*
-* If LWS_ADOPT_SOCKET is set, LWS adopts the socket in http serving mode, it's
-* ready to accept an upgrade to ws or just serve http.
-*
-* parent may be NULL, if given it should be an existing wsi that will become the
-* parent of the new wsi created by this call.
-*/
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_adopt_descriptor_vhost(struct lws_vhost *vh, lws_adoption_type type,
-			   lws_sock_file_fd_type fd, const char *vh_prot_name,
-			   struct lws *parent);
-
-/**
- * lws_adopt_socket_readbuf() - adopt foreign socket and first rx as if listen socket accepted it
- * for the default vhost of context.
- * \param context:	lws context
- * \param accept_fd:	fd of already-accepted socket to adopt
- * \param readbuf:	NULL or pointer to data that must be drained before reading from
- *		accept_fd
- * \param len:	The length of the data held at \param readbuf
- *
- * Either returns new wsi bound to accept_fd, or closes accept_fd and
- * returns NULL, having cleaned up any new wsi pieces.
- *
- * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
- * to ws or just serve http.
- *
- * If your external code did not already read from the socket, you can use
- * lws_adopt_socket() instead.
- *
- * This api is guaranteed to use the data at \param readbuf first, before reading from
- * the socket.
- *
- * readbuf is limited to the size of the ah rx buf, currently 2048 bytes.
- */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
-                         const char *readbuf, size_t len);
-/**
- * lws_adopt_socket_vhost_readbuf() - adopt foreign socket and first rx as if listen socket
- * accepted it for vhost.
- * \param vhost:	lws vhost
- * \param accept_fd:	fd of already-accepted socket to adopt
- * \param readbuf:	NULL or pointer to data that must be drained before
- * 			reading from accept_fd
- * \param len:		The length of the data held at \param readbuf
- *
- * Either returns new wsi bound to accept_fd, or closes accept_fd and
- * returns NULL, having cleaned up any new wsi pieces.
- *
- * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
- * to ws or just serve http.
- *
- * If your external code did not already read from the socket, you can use
- * lws_adopt_socket() instead.
- *
- * This api is guaranteed to use the data at \param readbuf first, before reading from
- * the socket.
- *
- * readbuf is limited to the size of the ah rx buf, currently 2048 bytes.
- */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_adopt_socket_vhost_readbuf(struct lws_vhost *vhost,
-			       lws_sockfd_type accept_fd, const char *readbuf,
-			       size_t len);
-
-#define LWS_CAUDP_BIND 1
-
-/**
- * lws_create_adopt_udp() - create, bind and adopt a UDP socket
- *
- * \param vhost:	 lws vhost
- * \param port:		 UDP port to bind to, -1 means unbound
- * \param flags:	 0 or LWS_CAUDP_NO_BIND
- * \param protocol_name: Name of protocol on vhost to bind wsi to
- * \param parent_wsi:	 NULL or parent wsi new wsi will be a child of
- *
- * Either returns new wsi bound to accept_fd, or closes accept_fd and
- * returns NULL, having cleaned up any new wsi pieces.
- * */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_create_adopt_udp(struct lws_vhost *vhost, int port, int flags,
-		     const char *protocol_name, struct lws *parent_wsi);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-callbacks.h b/thirdparty/libwebsockets/include/libwebsockets/lws-callbacks.h
deleted file mode 100644
index 8b49218e9c..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-callbacks.h
+++ /dev/null
@@ -1,807 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup usercb User Callback
- *
- * ##User protocol callback
- *
- * The protocol callback is the primary way lws interacts with
- * user code.  For one of a list of a few dozen reasons the callback gets
- * called at some event to be handled.
- *
- * All of the events can be ignored, returning 0 is taken as "OK" and returning
- * nonzero in most cases indicates that the connection should be closed.
- */
-///@{
-
-struct lws_ssl_info {
-	int where;
-	int ret;
-};
-
-enum lws_cert_update_state {
-	LWS_CUS_IDLE,
-	LWS_CUS_STARTING,
-	LWS_CUS_SUCCESS,
-	LWS_CUS_FAILED,
-
-	LWS_CUS_CREATE_KEYS,
-	LWS_CUS_REG,
-	LWS_CUS_AUTH,
-	LWS_CUS_CHALLENGE,
-	LWS_CUS_CREATE_REQ,
-	LWS_CUS_REQ,
-	LWS_CUS_CONFIRM,
-	LWS_CUS_ISSUE,
-};
-
-enum {
-	LWS_TLS_REQ_ELEMENT_COUNTRY,
-	LWS_TLS_REQ_ELEMENT_STATE,
-	LWS_TLS_REQ_ELEMENT_LOCALITY,
-	LWS_TLS_REQ_ELEMENT_ORGANIZATION,
-	LWS_TLS_REQ_ELEMENT_COMMON_NAME,
-	LWS_TLS_REQ_ELEMENT_EMAIL,
-
-	LWS_TLS_REQ_ELEMENT_COUNT,
-
-	LWS_TLS_SET_DIR_URL = LWS_TLS_REQ_ELEMENT_COUNT,
-	LWS_TLS_SET_AUTH_PATH,
-	LWS_TLS_SET_CERT_PATH,
-	LWS_TLS_SET_KEY_PATH,
-
-	LWS_TLS_TOTAL_COUNT
-};
-
-struct lws_acme_cert_aging_args {
-	struct lws_vhost *vh;
-	const char *element_overrides[LWS_TLS_TOTAL_COUNT]; /* NULL = use pvo */
-};
-
-/*
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-/** enum lws_callback_reasons - reason you're getting a protocol callback */
-enum lws_callback_reasons {
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to wsi and protocol binding lifecycle -----
-	 */
-
-	LWS_CALLBACK_PROTOCOL_INIT				= 27,
-	/**< One-time call per protocol, per-vhost using it, so it can
-	 * do initial setup / allocations etc */
-
-	LWS_CALLBACK_PROTOCOL_DESTROY				= 28,
-	/**< One-time call per protocol, per-vhost using it, indicating
-	 * this protocol won't get used at all after this callback, the
-	 * vhost is getting destroyed.  Take the opportunity to
-	 * deallocate everything that was allocated by the protocol. */
-
-	LWS_CALLBACK_WSI_CREATE					= 29,
-	/**< outermost (earliest) wsi create notification to protocols[0] */
-
-	LWS_CALLBACK_WSI_DESTROY				= 30,
-	/**< outermost (latest) wsi destroy notification to protocols[0] */
-
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to Server TLS -----
-	 */
-
-	LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS	= 21,
-	/**< if configured for
-	 * including OpenSSL support, this callback allows your user code
-	 * to perform extra SSL_CTX_load_verify_locations() or similar
-	 * calls to direct OpenSSL where to find certificates the client
-	 * can use to confirm the remote server identity.  user is the
-	 * OpenSSL SSL_CTX* */
-
-	LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS	= 22,
-	/**< if configured for
-	 * including OpenSSL support, this callback allows your user code
-	 * to load extra certificates into the server which allow it to
-	 * verify the validity of certificates returned by clients.  user
-	 * is the server's OpenSSL SSL_CTX* and in is the lws_vhost */
-
-	LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION	= 23,
-	/**< if the libwebsockets vhost was created with the option
-	 * LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT, then this
-	 * callback is generated during OpenSSL verification of the cert
-	 * sent from the client.  It is sent to protocol[0] callback as
-	 * no protocol has been negotiated on the connection yet.
-	 * Notice that the libwebsockets context and wsi are both NULL
-	 * during this callback.  See
-	 *  http://www.openssl.org/docs/ssl/SSL_CTX_set_verify.html
-	 * to understand more detail about the OpenSSL callback that
-	 * generates this libwebsockets callback and the meanings of the
-	 * arguments passed.  In this callback, user is the x509_ctx,
-	 * in is the ssl pointer and len is preverify_ok
-	 * Notice that this callback maintains libwebsocket return
-	 * conventions, return 0 to mean the cert is OK or 1 to fail it.
-	 * This also means that if you don't handle this callback then
-	 * the default callback action of returning 0 allows the client
-	 * certificates. */
-
-	LWS_CALLBACK_OPENSSL_CONTEXT_REQUIRES_PRIVATE_KEY	= 37,
-	/**< if configured for including OpenSSL support but no private key
-	 * file has been specified (ssl_private_key_filepath is NULL), this is
-	 * called to allow the user to set the private key directly via
-	 * libopenssl and perform further operations if required; this might be
-	 * useful in situations where the private key is not directly accessible
-	 * by the OS, for example if it is stored on a smartcard.
-	 * user is the server's OpenSSL SSL_CTX* */
-
-	LWS_CALLBACK_SSL_INFO					= 67,
-	/**< SSL connections only.  An event you registered an
-	 * interest in at the vhost has occurred on a connection
-	 * using the vhost.  in is a pointer to a
-	 * struct lws_ssl_info containing information about the
-	 * event*/
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to Client TLS -----
-	 */
-
-	LWS_CALLBACK_OPENSSL_PERFORM_SERVER_CERT_VERIFICATION = 58,
-	/**< Similar to LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION
-	 * this callback is called during OpenSSL verification of the cert
-	 * sent from the server to the client. It is sent to protocol[0]
-	 * callback as no protocol has been negotiated on the connection yet.
-	 * Notice that the wsi is set because lws_client_connect_via_info was
-	 * successful.
-	 *
-	 * See http://www.openssl.org/docs/ssl/SSL_CTX_set_verify.html
-	 * to understand more detail about the OpenSSL callback that
-	 * generates this libwebsockets callback and the meanings of the
-	 * arguments passed. In this callback, user is the x509_ctx,
-	 * in is the ssl pointer and len is preverify_ok.
-	 *
-	 * THIS IS NOT RECOMMENDED BUT if a cert validation error shall be
-	 * overruled and cert shall be accepted as ok,
-	 * X509_STORE_CTX_set_error((X509_STORE_CTX*)user, X509_V_OK); must be
-	 * called and return value must be 0 to mean the cert is OK;
-	 * returning 1 will fail the cert in any case.
-	 *
-	 * This also means that if you don't handle this callback then
-	 * the default callback action of returning 0 will not accept the
-	 * certificate in case of a validation error decided by the SSL lib.
-	 *
-	 * This is expected and secure behaviour when validating certificates.
-	 *
-	 * Note: LCCSCF_ALLOW_SELFSIGNED and
-	 * LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK still work without this
-	 * callback being implemented.
-	 */
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to HTTP Server  -----
-	 */
-
-	LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED		= 19,
-	/**< A new client has been accepted by the ws server.  This
-	 * callback allows setting any relevant property to it. Because this
-	 * happens immediately after the instantiation of a new client,
-	 * there's no websocket protocol selected yet so this callback is
-	 * issued only to protocol 0. Only wsi is defined, pointing to the
-	 * new client, and the return value is ignored. */
-
-	LWS_CALLBACK_HTTP					= 12,
-	/**< an http request has come from a client that is not
-	 * asking to upgrade the connection to a websocket
-	 * one.  This is a chance to serve http content,
-	 * for example, to send a script to the client
-	 * which will then open the websockets connection.
-	 * in points to the URI path requested and
-	 * lws_serve_http_file() makes it very
-	 * simple to send back a file to the client.
-	 * Normally after sending the file you are done
-	 * with the http connection, since the rest of the
-	 * activity will come by websockets from the script
-	 * that was delivered by http, so you will want to
-	 * return 1; to close and free up the connection. */
-
-	LWS_CALLBACK_HTTP_BODY					= 13,
-	/**< the next len bytes data from the http
-	 * request body HTTP connection is now available in in. */
-
-	LWS_CALLBACK_HTTP_BODY_COMPLETION			= 14,
-	/**< the expected amount of http request body has been delivered */
-
-	LWS_CALLBACK_HTTP_FILE_COMPLETION			= 15,
-	/**< a file requested to be sent down http link has completed. */
-
-	LWS_CALLBACK_HTTP_WRITEABLE				= 16,
-	/**< you can write more down the http protocol link now. */
-
-	LWS_CALLBACK_CLOSED_HTTP				=  5,
-	/**< when a HTTP (non-websocket) session ends */
-
-	LWS_CALLBACK_FILTER_HTTP_CONNECTION			= 18,
-	/**< called when the request has
-	 * been received and parsed from the client, but the response is
-	 * not sent yet.  Return non-zero to disallow the connection.
-	 * user is a pointer to the connection user space allocation,
-	 * in is the URI, eg, "/"
-	 * In your handler you can use the public APIs
-	 * lws_hdr_total_length() / lws_hdr_copy() to access all of the
-	 * headers using the header enums lws_token_indexes from
-	 * libwebsockets.h to check for and read the supported header
-	 * presence and content before deciding to allow the http
-	 * connection to proceed or to kill the connection. */
-
-	LWS_CALLBACK_ADD_HEADERS				= 53,
-	/**< This gives your user code a chance to add headers to a server
-	 * transaction bound to your protocol.  `in` points to a
-	 * `struct lws_process_html_args` describing a buffer and length
-	 * you can add headers into using the normal lws apis.
-	 *
-	 * (see LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER to add headers to
-	 * a client transaction)
-	 *
-	 * Only `args->p` and `args->len` are valid, and `args->p` should
-	 * be moved on by the amount of bytes written, if any.  Eg
-	 *
-	 * 	case LWS_CALLBACK_ADD_HEADERS:
-	 *
-	 *          struct lws_process_html_args *args =
-	 *          		(struct lws_process_html_args *)in;
-	 *
-	 *	    if (lws_add_http_header_by_name(wsi,
-	 *			(unsigned char *)"set-cookie:",
-	 *			(unsigned char *)cookie, cookie_len,
-	 *			(unsigned char **)&args->p,
-	 *			(unsigned char *)args->p + args->max_len))
-	 *		return 1;
-	 *
-	 *          break;
-	 */
-
-	LWS_CALLBACK_CHECK_ACCESS_RIGHTS			= 51,
-	/**< This gives the user code a chance to forbid an http access.
-	 * `in` points to a `struct lws_process_html_args`, which
-	 * describes the URL, and a bit mask describing the type of
-	 * authentication required.  If the callback returns nonzero,
-	 * the transaction ends with HTTP_STATUS_UNAUTHORIZED. */
-
-	LWS_CALLBACK_PROCESS_HTML				= 52,
-	/**< This gives your user code a chance to mangle outgoing
-	 * HTML.  `in` points to a `struct lws_process_html_args`
-	 * which describes the buffer containing outgoing HTML.
-	 * The buffer may grow up to `.max_len` (currently +128
-	 * bytes per buffer).
-	 */
-
-	LWS_CALLBACK_HTTP_BIND_PROTOCOL				= 49,
-	/**< By default, all HTTP handling is done in protocols[0].
-	 * However you can bind different protocols (by name) to
-	 * different parts of the URL space using callback mounts.  This
-	 * callback occurs in the new protocol when a wsi is bound
-	 * to that protocol.  Any protocol allocation related to the
-	 * http transaction processing should be created then.
-	 * These specific callbacks are necessary because with HTTP/1.1,
-	 * a single connection may perform at series of different
-	 * transactions at different URLs, thus the lifetime of the
-	 * protocol bind is just for one transaction, not connection. */
-
-	LWS_CALLBACK_HTTP_DROP_PROTOCOL				= 50,
-	/**< This is called when a transaction is unbound from a protocol.
-	 * It indicates the connection completed its transaction and may
-	 * do something different now.  Any protocol allocation related
-	 * to the http transaction processing should be destroyed. */
-
-	LWS_CALLBACK_HTTP_CONFIRM_UPGRADE			= 86,
-	/**< This is your chance to reject an HTTP upgrade action.  The
-	 * name of the protocol being upgraded to is in 'in', and the ah
-	 * is still bound to the wsi, so you can look at the headers.
-	 *
-	 * The default of returning 0 (ie, also if not handled) means the
-	 * upgrade may proceed.  Return <0 to just hang up the connection,
-	 * or >0 if you have rejected the connection by returning http headers
-	 * and response code yourself.
-	 *
-	 * There is no need for you to call transaction_completed() as the
-	 * caller will take care of it when it sees you returned >0.
-	 */
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to HTTP Client  -----
-	 */
-
-	LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP			= 44,
-	/**< The HTTP client connection has succeeded, and is now
-	 * connected to the server */
-
-	LWS_CALLBACK_CLOSED_CLIENT_HTTP				= 45,
-	/**< The HTTP client connection is closing */
-
-	LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ			= 48,
-	/**< This is generated by lws_http_client_read() used to drain
-	 * incoming data.  In the case the incoming data was chunked, it will
-	 * be split into multiple smaller callbacks for each chunk block,
-	 * removing the chunk headers. If not chunked, it will appear all in
-	 * one callback. */
-
-	LWS_CALLBACK_RECEIVE_CLIENT_HTTP			= 46,
-	/**< This simply indicates data was received on the HTTP client
-	 * connection.  It does NOT drain or provide the data.
-	 * This exists to neatly allow a proxying type situation,
-	 * where this incoming data will go out on another connection.
-	 * If the outgoing connection stalls, we should stall processing
-	 * the incoming data.  So a handler for this in that case should
-	 * simply set a flag to indicate there is incoming data ready
-	 * and ask for a writeable callback on the outgoing connection.
-	 * In the writable callback he can check the flag and then get
-	 * and drain the waiting incoming data using lws_http_client_read().
-	 * This will use callbacks to LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ
-	 * to get and drain the incoming data, where it should be sent
-	 * back out on the outgoing connection. */
-	LWS_CALLBACK_COMPLETED_CLIENT_HTTP			= 47,
-	/**< The client transaction completed... at the moment this
-	 * is the same as closing since transaction pipelining on
-	 * client side is not yet supported.  */
-
-	LWS_CALLBACK_CLIENT_HTTP_WRITEABLE			= 57,
-	/**< when doing an HTTP type client connection, you can call
-	 * lws_client_http_body_pending(wsi, 1) from
-	 * LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER to get these callbacks
-	 * sending the HTTP headers.
-	 *
-	 * From this callback, when you have sent everything, you should let
-	 * lws know by calling lws_client_http_body_pending(wsi, 0)
-	 */
-
-	LWS_CALLBACK_CLIENT_HTTP_BIND_PROTOCOL			= 85,
-	LWS_CALLBACK_CLIENT_HTTP_DROP_PROTOCOL			= 76,
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to Websocket Server -----
-	 */
-
-	LWS_CALLBACK_ESTABLISHED				=  0,
-	/**< (VH) after the server completes a handshake with an incoming
-	 * client.  If you built the library with ssl support, in is a
-	 * pointer to the ssl struct associated with the connection or NULL.
-	 *
-	 * b0 of len is set if the connection was made using ws-over-h2
-	 */
-
-	LWS_CALLBACK_CLOSED					=  4,
-	/**< when the websocket session ends */
-
-	LWS_CALLBACK_SERVER_WRITEABLE				= 11,
-	/**< See LWS_CALLBACK_CLIENT_WRITEABLE */
-
-	LWS_CALLBACK_RECEIVE					=  6,
-	/**< data has appeared for this server endpoint from a
-	 * remote client, it can be found at *in and is
-	 * len bytes long */
-
-	LWS_CALLBACK_RECEIVE_PONG				=  7,
-	/**< servers receive PONG packets with this callback reason */
-
-	LWS_CALLBACK_WS_PEER_INITIATED_CLOSE			= 38,
-	/**< The peer has sent an unsolicited Close WS packet.  in and
-	 * len are the optional close code (first 2 bytes, network
-	 * order) and the optional additional information which is not
-	 * defined in the standard, and may be a string or non human-readable
-	 * data.
-	 * If you return 0 lws will echo the close and then close the
-	 * connection.  If you return nonzero lws will just close the
-	 * connection. */
-
-	LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION			= 20,
-	/**< called when the handshake has
-	 * been received and parsed from the client, but the response is
-	 * not sent yet.  Return non-zero to disallow the connection.
-	 * user is a pointer to the connection user space allocation,
-	 * in is the requested protocol name
-	 * In your handler you can use the public APIs
-	 * lws_hdr_total_length() / lws_hdr_copy() to access all of the
-	 * headers using the header enums lws_token_indexes from
-	 * libwebsockets.h to check for and read the supported header
-	 * presence and content before deciding to allow the handshake
-	 * to proceed or to kill the connection. */
-
-	LWS_CALLBACK_CONFIRM_EXTENSION_OKAY			= 25,
-	/**< When the server handshake code
-	 * sees that it does support a requested extension, before
-	 * accepting the extension by additing to the list sent back to
-	 * the client it gives this callback just to check that it's okay
-	 * to use that extension.  It calls back to the requested protocol
-	 * and with in being the extension name, len is 0 and user is
-	 * valid.  Note though at this time the ESTABLISHED callback hasn't
-	 * happened yet so if you initialize user content there, user
-	 * content during this callback might not be useful for anything. */
-
-	LWS_CALLBACK_WS_SERVER_BIND_PROTOCOL			= 77,
-	LWS_CALLBACK_WS_SERVER_DROP_PROTOCOL			= 78,
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to Websocket Client -----
-	 */
-
-	LWS_CALLBACK_CLIENT_CONNECTION_ERROR			=  1,
-	/**< the request client connection has been unable to complete a
-	 * handshake with the remote server.  If in is non-NULL, you can
-	 * find an error string of length len where it points to
-	 *
-	 * Diagnostic strings that may be returned include
-	 *
-	 *     	"getaddrinfo (ipv6) failed"
-	 *     	"unknown address family"
-	 *     	"getaddrinfo (ipv4) failed"
-	 *     	"set socket opts failed"
-	 *     	"insert wsi failed"
-	 *     	"lws_ssl_client_connect1 failed"
-	 *     	"lws_ssl_client_connect2 failed"
-	 *     	"Peer hung up"
-	 *     	"read failed"
-	 *     	"HS: URI missing"
-	 *     	"HS: Redirect code but no Location"
-	 *     	"HS: URI did not parse"
-	 *     	"HS: Redirect failed"
-	 *     	"HS: Server did not return 200"
-	 *     	"HS: OOM"
-	 *     	"HS: disallowed by client filter"
-	 *     	"HS: disallowed at ESTABLISHED"
-	 *     	"HS: ACCEPT missing"
-	 *     	"HS: ws upgrade response not 101"
-	 *     	"HS: UPGRADE missing"
-	 *     	"HS: Upgrade to something other than websocket"
-	 *     	"HS: CONNECTION missing"
-	 *     	"HS: UPGRADE malformed"
-	 *     	"HS: PROTOCOL malformed"
-	 *     	"HS: Cannot match protocol"
-	 *     	"HS: EXT: list too big"
-	 *     	"HS: EXT: failed setting defaults"
-	 *     	"HS: EXT: failed parsing defaults"
-	 *     	"HS: EXT: failed parsing options"
-	 *     	"HS: EXT: Rejects server options"
-	 *     	"HS: EXT: unknown ext"
-	 *     	"HS: Accept hash wrong"
-	 *     	"HS: Rejected by filter cb"
-	 *     	"HS: OOM"
-	 *     	"HS: SO_SNDBUF failed"
-	 *     	"HS: Rejected at CLIENT_ESTABLISHED"
-	 */
-
-	LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH		=  2,
-	/**< this is the last chance for the client user code to examine the
-	 * http headers and decide to reject the connection.  If the
-	 * content in the headers is interesting to the
-	 * client (url, etc) it needs to copy it out at
-	 * this point since it will be destroyed before
-	 * the CLIENT_ESTABLISHED call */
-
-	LWS_CALLBACK_CLIENT_ESTABLISHED				=  3,
-	/**< after your client connection completed the websocket upgrade
-	 * handshake with the remote server */
-
-	LWS_CALLBACK_CLIENT_CLOSED				= 75,
-	/**< when a client websocket session ends */
-
-	LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER		= 24,
-	/**< this callback happens
-	 * when a client handshake is being compiled.  user is NULL,
-	 * in is a char **, it's pointing to a char * which holds the
-	 * next location in the header buffer where you can add
-	 * headers, and len is the remaining space in the header buffer,
-	 * which is typically some hundreds of bytes.  So, to add a canned
-	 * cookie, your handler code might look similar to:
-	 *
-	 *	char **p = (char **)in, *end = (*p) + len;
-	 *
-	 *	if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_COOKIE,
-	 *			(unsigned char)"a=b", 3, p, end))
-	 *		return -1;
-	 *
-	 * See LWS_CALLBACK_ADD_HEADERS for adding headers to server
-	 * transactions.
-	 */
-
-	LWS_CALLBACK_CLIENT_RECEIVE				=  8,
-	/**< data has appeared from the server for the client connection, it
-	 * can be found at *in and is len bytes long */
-
-	LWS_CALLBACK_CLIENT_RECEIVE_PONG			=  9,
-	/**< clients receive PONG packets with this callback reason */
-
-	LWS_CALLBACK_CLIENT_WRITEABLE				= 10,
-	/**<  If you call lws_callback_on_writable() on a connection, you will
-	 * get one of these callbacks coming when the connection socket
-	 * is able to accept another write packet without blocking.
-	 * If it already was able to take another packet without blocking,
-	 * you'll get this callback at the next call to the service loop
-	 * function.  Notice that CLIENTs get LWS_CALLBACK_CLIENT_WRITEABLE
-	 * and servers get LWS_CALLBACK_SERVER_WRITEABLE. */
-
-	LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED		= 26,
-	/**< When a ws client
-	 * connection is being prepared to start a handshake to a server,
-	 * each supported extension is checked with protocols[0] callback
-	 * with this reason, giving the user code a chance to suppress the
-	 * claim to support that extension by returning non-zero.  If
-	 * unhandled, by default 0 will be returned and the extension
-	 * support included in the header to the server.  Notice this
-	 * callback comes to protocols[0]. */
-
-	LWS_CALLBACK_WS_EXT_DEFAULTS				= 39,
-	/**< Gives client connections an opportunity to adjust negotiated
-	 * extension defaults.  `user` is the extension name that was
-	 * negotiated (eg, "permessage-deflate").  `in` points to a
-	 * buffer and `len` is the buffer size.  The user callback can
-	 * set the buffer to a string describing options the extension
-	 * should parse.  Or just ignore for defaults. */
-
-
-	LWS_CALLBACK_FILTER_NETWORK_CONNECTION			= 17,
-	/**< called when a client connects to
-	 * the server at network level; the connection is accepted but then
-	 * passed to this callback to decide whether to hang up immediately
-	 * or not, based on the client IP.  in contains the connection
-	 * socket's descriptor. Since the client connection information is
-	 * not available yet, wsi still pointing to the main server socket.
-	 * Return non-zero to terminate the connection before sending or
-	 * receiving anything. Because this happens immediately after the
-	 * network connection from the client, there's no websocket protocol
-	 * selected yet so this callback is issued only to protocol 0. */
-
-	LWS_CALLBACK_WS_CLIENT_BIND_PROTOCOL			= 79,
-	LWS_CALLBACK_WS_CLIENT_DROP_PROTOCOL			= 80,
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to external poll loop integration  -----
-	 */
-
-	LWS_CALLBACK_GET_THREAD_ID				= 31,
-	/**< lws can accept callback when writable requests from other
-	 * threads, if you implement this callback and return an opaque
-	 * current thread ID integer. */
-
-	/* external poll() management support */
-	LWS_CALLBACK_ADD_POLL_FD				= 32,
-	/**< lws normally deals with its poll() or other event loop
-	 * internally, but in the case you are integrating with another
-	 * server you will need to have lws sockets share a
-	 * polling array with the other server.  This and the other
-	 * POLL_FD related callbacks let you put your specialized
-	 * poll array interface code in the callback for protocol 0, the
-	 * first protocol you support, usually the HTTP protocol in the
-	 * serving case.
-	 * This callback happens when a socket needs to be
-	 * added to the polling loop: in points to a struct
-	 * lws_pollargs; the fd member of the struct is the file
-	 * descriptor, and events contains the active events
-	 *
-	 * If you are using the internal lws polling / event loop
-	 * you can just ignore these callbacks. */
-
-	LWS_CALLBACK_DEL_POLL_FD				= 33,
-	/**< This callback happens when a socket descriptor
-	 * needs to be removed from an external polling array.  in is
-	 * again the struct lws_pollargs containing the fd member
-	 * to be removed.  If you are using the internal polling
-	 * loop, you can just ignore it. */
-
-	LWS_CALLBACK_CHANGE_MODE_POLL_FD			= 34,
-	/**< This callback happens when lws wants to modify the events for
-	 * a connection.
-	 * in is the struct lws_pollargs with the fd to change.
-	 * The new event mask is in events member and the old mask is in
-	 * the prev_events member.
-	 * If you are using the internal polling loop, you can just ignore
-	 * it. */
-
-	LWS_CALLBACK_LOCK_POLL					= 35,
-	/**< These allow the external poll changes driven
-	 * by lws to participate in an external thread locking
-	 * scheme around the changes, so the whole thing is threadsafe.
-	 * These are called around three activities in the library,
-	 *	- inserting a new wsi in the wsi / fd table (len=1)
-	 *	- deleting a wsi from the wsi / fd table (len=1)
-	 *	- changing a wsi's POLLIN/OUT state (len=0)
-	 * Locking and unlocking external synchronization objects when
-	 * len == 1 allows external threads to be synchronized against
-	 * wsi lifecycle changes if it acquires the same lock for the
-	 * duration of wsi dereference from the other thread context. */
-
-	LWS_CALLBACK_UNLOCK_POLL				= 36,
-	/**< See LWS_CALLBACK_LOCK_POLL, ignore if using lws internal poll */
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to CGI serving -----
-	 */
-
-	LWS_CALLBACK_CGI					= 40,
-	/**< CGI: CGI IO events on stdin / out / err are sent here on
-	 * protocols[0].  The provided `lws_callback_http_dummy()`
-	 * handles this and the callback should be directed there if
-	 * you use CGI. */
-
-	LWS_CALLBACK_CGI_TERMINATED				= 41,
-	/**< CGI: The related CGI process ended, this is called before
-	 * the wsi is closed.  Used to, eg, terminate chunking.
-	 * The provided `lws_callback_http_dummy()`
-	 * handles this and the callback should be directed there if
-	 * you use CGI.  The child PID that terminated is in len. */
-
-	LWS_CALLBACK_CGI_STDIN_DATA				= 42,
-	/**< CGI: Data is, to be sent to the CGI process stdin, eg from
-	 * a POST body.  The provided `lws_callback_http_dummy()`
-	 * handles this and the callback should be directed there if
-	 * you use CGI. */
-
-	LWS_CALLBACK_CGI_STDIN_COMPLETED			= 43,
-	/**< CGI: no more stdin is coming.  The provided
-	 * `lws_callback_http_dummy()` handles this and the callback
-	 * should be directed there if you use CGI. */
-
-	LWS_CALLBACK_CGI_PROCESS_ATTACH				= 70,
-	/**< CGI: Sent when the CGI process is spawned for the wsi.  The
-	 * len parameter is the PID of the child process */
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to Generic Sessions -----
-	 */
-
-	LWS_CALLBACK_SESSION_INFO				= 54,
-	/**< This is only generated by user code using generic sessions.
-	 * It's used to get a `struct lws_session_info` filled in by
-	 * generic sessions with information about the logged-in user.
-	 * See the messageboard sample for an example of how to use. */
-
-	LWS_CALLBACK_GS_EVENT					= 55,
-	/**< Indicates an event happened to the Generic Sessions session.
-	 * `in` contains a `struct lws_gs_event_args` describing the event. */
-
-	LWS_CALLBACK_HTTP_PMO					= 56,
-	/**< per-mount options for this connection, called before
-	 * the normal LWS_CALLBACK_HTTP when the mount has per-mount
-	 * options.
-	 */
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to RAW sockets -----
-	 */
-
-	LWS_CALLBACK_RAW_RX					= 59,
-	/**< RAW mode connection RX */
-
-	LWS_CALLBACK_RAW_CLOSE					= 60,
-	/**< RAW mode connection is closing */
-
-	LWS_CALLBACK_RAW_WRITEABLE				= 61,
-	/**< RAW mode connection may be written */
-
-	LWS_CALLBACK_RAW_ADOPT					= 62,
-	/**< RAW mode connection was adopted (equivalent to 'wsi created') */
-
-	LWS_CALLBACK_RAW_SKT_BIND_PROTOCOL			= 81,
-	LWS_CALLBACK_RAW_SKT_DROP_PROTOCOL			= 82,
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to RAW file handles -----
-	 */
-
-	LWS_CALLBACK_RAW_ADOPT_FILE				= 63,
-	/**< RAW mode file was adopted (equivalent to 'wsi created') */
-
-	LWS_CALLBACK_RAW_RX_FILE				= 64,
-	/**< This is the indication the RAW mode file has something to read.
-	 *   This doesn't actually do the read of the file and len is always
-	 *   0... your code should do the read having been informed there is
-	 *   something to read now. */
-
-	LWS_CALLBACK_RAW_WRITEABLE_FILE				= 65,
-	/**< RAW mode file is writeable */
-
-	LWS_CALLBACK_RAW_CLOSE_FILE				= 66,
-	/**< RAW mode wsi that adopted a file is closing */
-
-	LWS_CALLBACK_RAW_FILE_BIND_PROTOCOL			= 83,
-	LWS_CALLBACK_RAW_FILE_DROP_PROTOCOL			= 84,
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to generic wsi events -----
-	 */
-
-	LWS_CALLBACK_TIMER					= 73,
-	/**< When the time elapsed after a call to
-	 * lws_set_timer_usecs(wsi, usecs) is up, the wsi will get one of
-	 * these callbacks.  The deadline can be continuously extended into the
-	 * future by later calls to lws_set_timer_usecs() before the deadline
-	 * expires, or cancelled by lws_set_timer_usecs(wsi, -1);
-	 */
-
-	LWS_CALLBACK_EVENT_WAIT_CANCELLED			= 71,
-	/**< This is sent to every protocol of every vhost in response
-	 * to lws_cancel_service() or lws_cancel_service_pt().  This
-	 * callback is serialized in the lws event loop normally, even
-	 * if the lws_cancel_service[_pt]() call was from a different
-	 * thread. */
-
-	LWS_CALLBACK_CHILD_CLOSING				= 69,
-	/**< Sent to parent to notify them a child is closing / being
-	 * destroyed.  in is the child wsi.
-	 */
-
-	/* ---------------------------------------------------------------------
-	 * ----- Callbacks related to TLS certificate management -----
-	 */
-
-	LWS_CALLBACK_VHOST_CERT_AGING				= 72,
-	/**< When a vhost TLS cert has its expiry checked, this callback
-	 * is broadcast to every protocol of every vhost in case the
-	 * protocol wants to take some action with this information.
-	 * \p in is a pointer to a struct lws_acme_cert_aging_args,
-	 * and \p len is the number of days left before it expires, as
-	 * a (ssize_t).  In the struct lws_acme_cert_aging_args, vh
-	 * points to the vhost the cert aging information applies to,
-	 * and element_overrides[] is an optional way to update information
-	 * from the pvos... NULL in an index means use the information from
-	 * from the pvo for the cert renewal, non-NULL in the array index
-	 * means use that pointer instead for the index. */
-
-	LWS_CALLBACK_VHOST_CERT_UPDATE				= 74,
-	/**< When a vhost TLS cert is being updated, progress is
-	 * reported to the vhost in question here, including completion
-	 * and failure.  in points to optional JSON, and len represents the
-	 * connection state using enum lws_cert_update_state */
-
-
-	/****** add new things just above ---^ ******/
-
-	LWS_CALLBACK_USER = 1000,
-	/**<  user code can use any including above without fear of clashes */
-};
-
-
-
-/**
- * typedef lws_callback_function() - User server actions
- * \param wsi:	Opaque websocket instance pointer
- * \param reason:	The reason for the call
- * \param user:	Pointer to per-session user data allocated by library
- * \param in:		Pointer used for some callback reasons
- * \param len:	Length set for some callback reasons
- *
- *	This callback is the way the user controls what is served.  All the
- *	protocol detail is hidden and handled by the library.
- *
- *	For each connection / session there is user data allocated that is
- *	pointed to by "user".  You set the size of this user data area when
- *	the library is initialized with lws_create_server.
- */
-typedef int
-lws_callback_function(struct lws *wsi, enum lws_callback_reasons reason,
-		    void *user, void *in, size_t len);
-
-#define LWS_CB_REASON_AUX_BF__CGI		1
-#define LWS_CB_REASON_AUX_BF__PROXY		2
-#define LWS_CB_REASON_AUX_BF__CGI_CHUNK_END	4
-#define LWS_CB_REASON_AUX_BF__CGI_HEADERS	8
-#define LWS_CB_REASON_AUX_BF__PROXY_TRANS_END	16
-#define LWS_CB_REASON_AUX_BF__PROXY_HEADERS	32
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-cgi.h b/thirdparty/libwebsockets/include/libwebsockets/lws-cgi.h
deleted file mode 100644
index 7a5eca2855..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-cgi.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup cgi cgi handling
- *
- * ##CGI handling
- *
- * These functions allow low-level control over stdin/out/err of the cgi.
- *
- * However for most cases, binding the cgi to http in and out, the default
- * lws implementation already does the right thing.
- */
-
-enum lws_enum_stdinouterr {
-	LWS_STDIN = 0,
-	LWS_STDOUT = 1,
-	LWS_STDERR = 2,
-};
-
-enum lws_cgi_hdr_state {
-	LCHS_HEADER,
-	LCHS_CR1,
-	LCHS_LF1,
-	LCHS_CR2,
-	LCHS_LF2,
-	LHCS_RESPONSE,
-	LHCS_DUMP_HEADERS,
-	LHCS_PAYLOAD,
-	LCHS_SINGLE_0A,
-};
-
-struct lws_cgi_args {
-	struct lws **stdwsi; /**< get fd with lws_get_socket_fd() */
-	enum lws_enum_stdinouterr ch; /**< channel index */
-	unsigned char *data; /**< for messages with payload */
-	enum lws_cgi_hdr_state hdr_state; /**< track where we are in cgi headers */
-	int len; /**< length */
-};
-
-#ifdef LWS_WITH_CGI
-/**
- * lws_cgi: spawn network-connected cgi process
- *
- * \param wsi: connection to own the process
- * \param exec_array: array of "exec-name" "arg1" ... "argn" NULL
- * \param script_uri_path_len: how many chars on the left of the uri are the
- *        path to the cgi, or -1 to spawn without URL-related env vars
- * \param timeout_secs: seconds script should be allowed to run
- * \param mp_cgienv: pvo list with per-vhost cgi options to put in env
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_cgi(struct lws *wsi, const char * const *exec_array,
-	int script_uri_path_len, int timeout_secs,
-	const struct lws_protocol_vhost_options *mp_cgienv);
-
-/**
- * lws_cgi_write_split_stdout_headers: write cgi output accounting for header part
- *
- * \param wsi: connection to own the process
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_cgi_write_split_stdout_headers(struct lws *wsi);
-
-/**
- * lws_cgi_kill: terminate cgi process associated with wsi
- *
- * \param wsi: connection to own the process
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_cgi_kill(struct lws *wsi);
-
-/**
- * lws_cgi_get_stdwsi: get wsi for stdin, stdout, or stderr
- *
- * \param wsi: parent wsi that has cgi
- * \param ch: which of LWS_STDIN, LWS_STDOUT or LWS_STDERR
- */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_cgi_get_stdwsi(struct lws *wsi, enum lws_enum_stdinouterr ch);
-
-#endif
-///@}
-
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-client.h b/thirdparty/libwebsockets/include/libwebsockets/lws-client.h
deleted file mode 100644
index a1661b0a9f..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-client.h
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup client Client related functions
- * ##Client releated functions
- * \ingroup lwsapi
- *
- * */
-///@{
-
-/** enum lws_client_connect_ssl_connection_flags - flags that may be used
- * with struct lws_client_connect_info ssl_connection member to control if
- * and how SSL checks apply to the client connection being created
- */
-
-enum lws_client_connect_ssl_connection_flags {
-	LCCSCF_USE_SSL 				= (1 << 0),
-	LCCSCF_ALLOW_SELFSIGNED			= (1 << 1),
-	LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK	= (1 << 2),
-	LCCSCF_ALLOW_EXPIRED			= (1 << 3),
-
-	LCCSCF_PIPELINE				= (1 << 16),
-		/**< Serialize / pipeline multiple client connections
-		 * on a single connection where possible.
-		 *
-		 * HTTP/1.0: possible if Keep-Alive: yes sent by server
-		 * HTTP/1.1: always possible... uses pipelining
-		 * HTTP/2:   always possible... uses parallel streams
-		 * */
-};
-
-/** struct lws_client_connect_info - parameters to connect with when using
- *				    lws_client_connect_via_info() */
-
-struct lws_client_connect_info {
-	struct lws_context *context;
-	/**< lws context to create connection in */
-	const char *address;
-	/**< remote address to connect to */
-	int port;
-	/**< remote port to connect to */
-	int ssl_connection;
-	/**< 0, or a combination of LCCSCF_ flags */
-	const char *path;
-	/**< uri path */
-	const char *host;
-	/**< content of host header */
-	const char *origin;
-	/**< content of origin header */
-	const char *protocol;
-	/**< list of ws protocols we could accept */
-	int ietf_version_or_minus_one;
-	/**< deprecated: currently leave at 0 or -1 */
-	void *userdata;
-	/**< if non-NULL, use this as wsi user_data instead of malloc it */
-	const void *client_exts;
-	/**< UNUSED... provide in info.extensions at context creation time */
-	const char *method;
-	/**< if non-NULL, do this http method instead of ws[s] upgrade.
-	 * use "GET" to be a simple http client connection.  "RAW" gets
-	 * you a connected socket that lws itself will leave alone once
-	 * connected. */
-	struct lws *parent_wsi;
-	/**< if another wsi is responsible for this connection, give it here.
-	 * this is used to make sure if the parent closes so do any
-	 * child connections first. */
-	const char *uri_replace_from;
-	/**< if non-NULL, when this string is found in URIs in
-	 * text/html content-encoding, it's replaced with uri_replace_to */
-	const char *uri_replace_to;
-	/**< see uri_replace_from */
-	struct lws_vhost *vhost;
-	/**< vhost to bind to (used to determine related SSL_CTX) */
-	struct lws **pwsi;
-	/**< if not NULL, store the new wsi here early in the connection
-	 * process.  Although we return the new wsi, the call to create the
-	 * client connection does progress the connection somewhat and may
-	 * meet an error that will result in the connection being scrubbed and
-	 * NULL returned.  While the wsi exists though, he may process a
-	 * callback like CLIENT_CONNECTION_ERROR with his wsi: this gives the
-	 * user callback a way to identify which wsi it is that faced the error
-	 * even before the new wsi is returned and even if ultimately no wsi
-	 * is returned.
-	 */
-	const char *iface;
-	/**< NULL to allow routing on any interface, or interface name or IP
-	 * to bind the socket to */
-	const char *local_protocol_name;
-	/**< NULL: .protocol is used both to select the local protocol handler
-	 *         to bind to and as the list of remote ws protocols we could
-	 *         accept.
-	 *   non-NULL: this protocol name is used to bind the connection to
-	 *             the local protocol handler.  .protocol is used for the
-	 *             list of remote ws protocols we could accept */
-	const char *alpn;
-	/**< NULL: allow lws default ALPN list, from vhost if present or from
-	 *       list of roles built into lws
-	 * non-NULL: require one from provided comma-separated list of alpn
-	 *           tokens
-	 */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility
-	 *
-	 * The below is to ensure later library versions with new
-	 * members added above will see 0 (default) even if the app
-	 * was not built against the newer headers.
-	 */
-
-	void *_unused[4]; /**< dummy */
-};
-
-/**
- * lws_client_connect_via_info() - Connect to another websocket server
- * \param ccinfo: pointer to lws_client_connect_info struct
- *
- *	This function creates a connection to a remote server using the
- *	information provided in ccinfo.
- */
-LWS_VISIBLE LWS_EXTERN struct lws *
-lws_client_connect_via_info(const struct lws_client_connect_info *ccinfo);
-
-/**
- * lws_init_vhost_client_ssl() - also enable client SSL on an existing vhost
- *
- * \param info: client ssl related info
- * \param vhost: which vhost to initialize client ssl operations on
- *
- * You only need to call this if you plan on using SSL client connections on
- * the vhost.  For non-SSL client connections, it's not necessary to call this.
- *
- * The following members of info are used during the call
- *
- *	 - options must have LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT set,
- *	     otherwise the call does nothing
- *	 - provided_client_ssl_ctx must be NULL to get a generated client
- *	     ssl context, otherwise you can pass a prepared one in by setting it
- *	 - ssl_cipher_list may be NULL or set to the client valid cipher list
- *	 - ssl_ca_filepath may be NULL or client cert filepath
- *	 - ssl_cert_filepath may be NULL or client cert filepath
- *	 - ssl_private_key_filepath may be NULL or client cert private key
- *
- * You must create your vhost explicitly if you want to use this, so you have
- * a pointer to the vhost.  Create the context first with the option flag
- * LWS_SERVER_OPTION_EXPLICIT_VHOSTS and then call lws_create_vhost() with
- * the same info struct.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_init_vhost_client_ssl(const struct lws_context_creation_info *info,
-			  struct lws_vhost *vhost);
-/**
- * lws_http_client_read() - consume waiting received http client data
- *
- * \param wsi: client connection
- * \param buf: pointer to buffer pointer - fill with pointer to your buffer
- * \param len: pointer to chunk length - fill with max length of buffer
- *
- * This is called when the user code is notified client http data has arrived.
- * The user code may choose to delay calling it to consume the data, for example
- * waiting until an onward connection is writeable.
- *
- * For non-chunked connections, up to len bytes of buf are filled with the
- * received content.  len is set to the actual amount filled before return.
- *
- * For chunked connections, the linear buffer content contains the chunking
- * headers and it cannot be passed in one lump.  Instead, this function will
- * call back LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ with in pointing to the
- * chunk start and len set to the chunk length.  There will be as many calls
- * as there are chunks or partial chunks in the buffer.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_http_client_read(struct lws *wsi, char **buf, int *len);
-
-/**
- * lws_http_client_http_response() - get last HTTP response code
- *
- * \param wsi: client connection
- *
- * Returns the last server response code, eg, 200 for client http connections.
- *
- * You should capture this during the LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP
- * callback, because after that the memory reserved for storing the related
- * headers is freed and this value is lost.
- */
-LWS_VISIBLE LWS_EXTERN unsigned int
-lws_http_client_http_response(struct lws *wsi);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_client_http_body_pending(struct lws *wsi, int something_left_to_send);
-
-/**
- * lws_client_http_body_pending() - control if client connection neeeds to send body
- *
- * \param wsi: client connection
- * \param something_left_to_send: nonzero if need to send more body, 0 (default)
- * 				if nothing more to send
- *
- * If you will send payload data with your HTTP client connection, eg, for POST,
- * when you set the related http headers in
- * LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER callback you should also call
- * this API with something_left_to_send nonzero, and call
- * lws_callback_on_writable(wsi);
- *
- * After sending the headers, lws will call your callback with
- * LWS_CALLBACK_CLIENT_HTTP_WRITEABLE reason when writable.  You can send the
- * next part of the http body payload, calling lws_callback_on_writable(wsi);
- * if there is more to come, or lws_client_http_body_pending(wsi, 0); to
- * let lws know the last part is sent and the connection can move on.
- */
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-context-vhost.h b/thirdparty/libwebsockets/include/libwebsockets/lws-context-vhost.h
deleted file mode 100644
index a63d708629..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-context-vhost.h
+++ /dev/null
@@ -1,927 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup context-and-vhost context and vhost related functions
- * ##Context and Vhost releated functions
- * \ingroup lwsapi
- *
- *
- *  LWS requires that there is one context, in which you may define multiple
- *  vhosts.  Each vhost is a virtual host, with either its own listen port
- *  or sharing an existing one.  Each vhost has its own SSL context that can
- *  be set up individually or left disabled.
- *
- *  If you don't care about multiple "site" support, you can ignore it and
- *  lws will create a single default vhost at context creation time.
- */
-///@{
-
-/*
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-
-/** enum lws_context_options - context and vhost options */
-enum lws_context_options {
-	LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT	= (1 << 1) |
-								  (1 << 12),
-	/**< (VH) Don't allow the connection unless the client has a
-	 * client cert that we recognize; provides
-	 * LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT */
-	LWS_SERVER_OPTION_SKIP_SERVER_CANONICAL_NAME		= (1 << 2),
-	/**< (CTX) Don't try to get the server's hostname */
-	LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT		= (1 << 3) |
-								  (1 << 12),
-	/**< (VH) Allow non-SSL (plaintext) connections on the same
-	 * port as SSL is listening... undermines the security of SSL;
-	 * provides  LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT */
-	LWS_SERVER_OPTION_LIBEV					= (1 << 4),
-	/**< (CTX) Use libev event loop */
-	LWS_SERVER_OPTION_DISABLE_IPV6				= (1 << 5),
-	/**< (VH) Disable IPV6 support */
-	LWS_SERVER_OPTION_DISABLE_OS_CA_CERTS			= (1 << 6),
-	/**< (VH) Don't load OS CA certs, you will need to load your
-	 * own CA cert(s) */
-	LWS_SERVER_OPTION_PEER_CERT_NOT_REQUIRED		= (1 << 7),
-	/**< (VH) Accept connections with no valid Cert (eg, selfsigned) */
-	LWS_SERVER_OPTION_VALIDATE_UTF8				= (1 << 8),
-	/**< (VH) Check UT-8 correctness */
-	LWS_SERVER_OPTION_SSL_ECDH				= (1 << 9) |
-								  (1 << 12),
-	/**< (VH)  initialize ECDH ciphers */
-	LWS_SERVER_OPTION_LIBUV					= (1 << 10),
-	/**< (CTX)  Use libuv event loop */
-	LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS		= (1 << 11) |
-								  (1 << 12),
-	/**< (VH) Use http redirect to force http to https
-	 * (deprecated: use mount redirection) */
-	LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT			= (1 << 12),
-	/**< (CTX) Initialize the SSL library at all */
-	LWS_SERVER_OPTION_EXPLICIT_VHOSTS			= (1 << 13),
-	/**< (CTX) Only create the context when calling context
-	 * create api, implies user code will create its own vhosts */
-	LWS_SERVER_OPTION_UNIX_SOCK				= (1 << 14),
-	/**< (VH) Use Unix socket */
-	LWS_SERVER_OPTION_STS					= (1 << 15),
-	/**< (VH) Send Strict Transport Security header, making
-	 * clients subsequently go to https even if user asked for http */
-	LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY			= (1 << 16),
-	/**< (VH) Enable LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE to take effect */
-	LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE			= (1 << 17),
-	/**< (VH) if set, only ipv6 allowed on the vhost */
-	LWS_SERVER_OPTION_UV_NO_SIGSEGV_SIGFPE_SPIN		= (1 << 18),
-	/**< (CTX) Libuv only: Do not spin on SIGSEGV / SIGFPE.  A segfault
-	 * normally makes the lib spin so you can attach a debugger to it
-	 * even if it happened without a debugger in place.  You can disable
-	 * that by giving this option.
-	 */
-	LWS_SERVER_OPTION_JUST_USE_RAW_ORIGIN			= (1 << 19),
-	/**< For backwards-compatibility reasons, by default
-	 * lws prepends "http://" to the origin you give in the client
-	 * connection info struct.  If you give this flag when you create
-	 * the context, only the string you give in the client connect
-	 * info for .origin (if any) will be used directly.
-	 */
-	LWS_SERVER_OPTION_FALLBACK_TO_RAW			= (1 << 20),
-	/**< (VH) if invalid http is coming in the first line,  */
-	LWS_SERVER_OPTION_LIBEVENT				= (1 << 21),
-	/**< (CTX) Use libevent event loop */
-	LWS_SERVER_OPTION_ONLY_RAW				= (1 << 22),
-	/**< (VH) All connections to this vhost / port are RAW as soon as
-	 * the connection is accepted, no HTTP is going to be coming.
-	 */
-	LWS_SERVER_OPTION_ALLOW_LISTEN_SHARE			= (1 << 23),
-	/**< (VH) Set to allow multiple listen sockets on one interface +
-	 * address + port.  The default is to strictly allow only one
-	 * listen socket at a time.  This is automatically selected if you
-	 * have multiple service threads.
-	 */
-	LWS_SERVER_OPTION_CREATE_VHOST_SSL_CTX			= (1 << 24),
-	/**< (VH) Force setting up the vhost SSL_CTX, even though the user
-	 * code doesn't explicitly provide a cert in the info struct.  It
-	 * implies the user code is going to provide a cert at the
-	 * LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS callback, which
-	 * provides the vhost SSL_CTX * in the user parameter.
-	 */
-	LWS_SERVER_OPTION_SKIP_PROTOCOL_INIT			= (1 << 25),
-	/**< (VH) You probably don't want this.  It forces this vhost to not
-	 * call LWS_CALLBACK_PROTOCOL_INIT on its protocols.  It's used in the
-	 * special case of a temporary vhost bound to a single protocol.
-	 */
-	LWS_SERVER_OPTION_IGNORE_MISSING_CERT			= (1 << 26),
-	/**< (VH) Don't fail if the vhost TLS cert or key are missing, just
-	 * continue.  The vhost won't be able to serve anything, but if for
-	 * example the ACME plugin was configured to fetch a cert, this lets
-	 * you bootstrap your vhost from having no cert to start with.
-	 */
-	LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK		= (1 << 27),
-	/**< (VH) On this vhost, if the connection is being upgraded, insist
-	 * that there's a Host: header and that the contents match the vhost
-	 * name + port (443 / 80 are assumed if no :port given based on if the
-	 * connection is using TLS).
-	 *
-	 * By default, without this flag, on upgrade lws just checks that the
-	 * Host: header was given without checking the contents... this is to
-	 * allow lax hostname mappings like localhost / 127.0.0.1, and CNAME
-	 * mappings like www.mysite.com / mysite.com
-	 */
-	LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE	= (1 << 28),
-	/**< (VH) Send lws default HTTP headers recommended by Mozilla
-	 * Observatory for security.  This is a helper option that sends canned
-	 * headers on each http response enabling a VERY strict Content Security
-	 * Policy.  The policy is so strict, for example it won't let the page
-	 * run its own inline JS nor show images or take CSS from a different
-	 * server.  In many cases your JS only comes from your server as do the
-	 * image sources and CSS, so that is what you want... attackers hoping
-	 * to inject JS into your DOM are completely out of luck since even if
-	 * they succeed, it will be rejected for execution by the browser
-	 * according to the strict CSP.  In other cases you have to deviate from
-	 * the complete strictness, in which case don't use this flag: use the
-	 * .headers member in the vhost init described in struct
-	 * lws_context_creation_info instead to send the adapted headers
-	 * yourself.
-	 */
-
-	/****** add new things just above ---^ ******/
-};
-
-#define lws_check_opt(c, f) (((c) & (f)) == (f))
-
-struct lws_plat_file_ops;
-
-/** struct lws_context_creation_info - parameters to create context and /or vhost with
- *
- * This is also used to create vhosts.... if LWS_SERVER_OPTION_EXPLICIT_VHOSTS
- * is not given, then for backwards compatibility one vhost is created at
- * context-creation time using the info from this struct.
- *
- * If LWS_SERVER_OPTION_EXPLICIT_VHOSTS is given, then no vhosts are created
- * at the same time as the context, they are expected to be created afterwards.
- */
-struct lws_context_creation_info {
-	int port;
-	/**< VHOST: Port to listen on. Use CONTEXT_PORT_NO_LISTEN to suppress
-	 * listening for a client. Use CONTEXT_PORT_NO_LISTEN_SERVER if you are
-	 * writing a server but you are using \ref sock-adopt instead of the
-	 * built-in listener.
-	 *
-	 * You can also set port to 0, in which case the kernel will pick
-	 * a random port that is not already in use.  You can find out what
-	 * port the vhost is listening on using lws_get_vhost_listen_port() */
-	const char *iface;
-	/**< VHOST: NULL to bind the listen socket to all interfaces, or the
-	 * interface name, eg, "eth2"
-	 * If options specifies LWS_SERVER_OPTION_UNIX_SOCK, this member is
-	 * the pathname of a UNIX domain socket. you can use the UNIX domain
-	 * sockets in abstract namespace, by prepending an at symbol to the
-	 * socket name. */
-	const struct lws_protocols *protocols;
-	/**< VHOST: Array of structures listing supported protocols and a
-	 * protocol-specific callback for each one.  The list is ended with an
-	 * entry that has a NULL callback pointer. */
-	const struct lws_extension *extensions;
-	/**< VHOST: NULL or array of lws_extension structs listing the
-	 * extensions this context supports. */
-	const struct lws_token_limits *token_limits;
-	/**< CONTEXT: NULL or struct lws_token_limits pointer which is
-	 * initialized with a token length limit for each possible WSI_TOKEN_ */
-	const char *ssl_private_key_password;
-	/**< VHOST: NULL or the passphrase needed for the private key. (For
-	 * backwards compatibility, this can also be used to pass the client
-	 * cert passphrase when setting up a vhost client SSL context, but it is
-	 * preferred to use .client_ssl_private_key_password for that.) */
-	const char *ssl_cert_filepath;
-	/**< VHOST: If libwebsockets was compiled to use ssl, and you want
-	 * to listen using SSL, set to the filepath to fetch the
-	 * server cert from, otherwise NULL for unencrypted.  (For backwards
-	 * compatibility, this can also be used to pass the client certificate
-	 * when setting up a vhost client SSL context, but it is preferred to
-	 * use .client_ssl_cert_filepath for that.) */
-	const char *ssl_private_key_filepath;
-	/**<  VHOST: filepath to private key if wanting SSL mode;
-	 * if this is set to NULL but ssl_cert_filepath is set, the
-	 * OPENSSL_CONTEXT_REQUIRES_PRIVATE_KEY callback is called
-	 * to allow setting of the private key directly via openSSL
-	 * library calls.   (For backwards compatibility, this can also be used
-	 * to pass the client cert private key filepath when setting up a
-	 * vhost client SSL context, but it is preferred to use
-	 * .client_ssl_private_key_filepath for that.) */
-	const char *ssl_ca_filepath;
-	/**< VHOST: CA certificate filepath or NULL.  (For backwards
-	 * compatibility, this can also be used to pass the client CA
-	 * filepath when setting up a vhost client SSL context,
-	 * but it is preferred to use .client_ssl_ca_filepath for that.) */
-	const char *ssl_cipher_list;
-	/**< VHOST: List of valid ciphers to use ON TLS1.2 AND LOWER ONLY (eg,
-	 * "RC4-MD5:RC4-SHA:AES128-SHA:AES256-SHA:HIGH:!DSS:!aNULL"
-	 * or you can leave it as NULL to get "DEFAULT" (For backwards
-	 * compatibility, this can also be used to pass the client cipher
-	 * list when setting up a vhost client SSL context,
-	 * but it is preferred to use .client_ssl_cipher_list for that.)
-	 * SEE .tls1_3_plus_cipher_list and .client_tls_1_3_plus_cipher_list
-	 * for the equivalent for tls1.3.
-	 */
-	const char *http_proxy_address;
-	/**< VHOST: If non-NULL, attempts to proxy via the given address.
-	 * If proxy auth is required, use format
-	 * "username:password\@server:port" */
-	unsigned int http_proxy_port;
-	/**< VHOST: If http_proxy_address was non-NULL, uses this port */
-	int gid;
-	/**< CONTEXT: group id to change to after setting listen socket,
-	 *   or -1. */
-	int uid;
-	/**< CONTEXT: user id to change to after setting listen socket,
-	 *   or -1. */
-	unsigned int options;
-	/**< VHOST + CONTEXT: 0, or LWS_SERVER_OPTION_... bitfields */
-	void *user;
-	/**< VHOST + CONTEXT: optional user pointer that will be associated
-	 * with the context when creating the context (and can be retrieved by
-	 * lws_context_user(context), or with the vhost when creating the vhost
-	 * (and can be retrieved by lws_vhost_user(vhost)).  You will need to
-	 * use LWS_SERVER_OPTION_EXPLICIT_VHOSTS and create the vhost separately
-	 * if you care about giving the context and vhost different user pointer
-	 * values.
-	 */
-	int ka_time;
-	/**< CONTEXT: 0 for no TCP keepalive, otherwise apply this keepalive
-	 * timeout to all libwebsocket sockets, client or server */
-	int ka_probes;
-	/**< CONTEXT: if ka_time was nonzero, after the timeout expires how many
-	 * times to try to get a response from the peer before giving up
-	 * and killing the connection */
-	int ka_interval;
-	/**< CONTEXT: if ka_time was nonzero, how long to wait before each ka_probes
-	 * attempt */
-#if defined(LWS_WITH_TLS) && !defined(LWS_WITH_MBEDTLS)
-	SSL_CTX *provided_client_ssl_ctx;
-	/**< CONTEXT: If non-null, swap out libwebsockets ssl
-	  * implementation for the one provided by provided_ssl_ctx.
-	  * Libwebsockets no longer is responsible for freeing the context
-	  * if this option is selected. */
-#else /* maintain structure layout either way */
-	void *provided_client_ssl_ctx; /**< dummy if ssl disabled */
-#endif
-
-	unsigned short max_http_header_data;
-	/**< CONTEXT: The max amount of header payload that can be handled
-	 * in an http request (unrecognized header payload is dropped) */
-	unsigned short max_http_header_pool;
-	/**< CONTEXT: The max number of connections with http headers that
-	 * can be processed simultaneously (the corresponding memory is
-	 * allocated and deallocated dynamically as needed).  If the pool is
-	 * fully busy new incoming connections must wait for accept until one
-	 * becomes free. 0 = allow as many ah as number of availble fds for
-	 * the process */
-
-	unsigned int count_threads;
-	/**< CONTEXT: how many contexts to create in an array, 0 = 1 */
-	unsigned int fd_limit_per_thread;
-	/**< CONTEXT: nonzero means restrict each service thread to this
-	 * many fds, 0 means the default which is divide the process fd
-	 * limit by the number of threads. */
-	unsigned int timeout_secs;
-	/**< VHOST: various processes involving network roundtrips in the
-	 * library are protected from hanging forever by timeouts.  If
-	 * nonzero, this member lets you set the timeout used in seconds.
-	 * Otherwise a default timeout is used. */
-	const char *ecdh_curve;
-	/**< VHOST: if NULL, defaults to initializing server with
-	 *   "prime256v1" */
-	const char *vhost_name;
-	/**< VHOST: name of vhost, must match external DNS name used to
-	 * access the site, like "warmcat.com" as it's used to match
-	 * Host: header and / or SNI name for SSL. */
-	const char * const *plugin_dirs;
-	/**< CONTEXT: NULL, or NULL-terminated array of directories to
-	 * scan for lws protocol plugins at context creation time */
-	const struct lws_protocol_vhost_options *pvo;
-	/**< VHOST: pointer to optional linked list of per-vhost
-	 * options made accessible to protocols */
-	int keepalive_timeout;
-	/**< VHOST: (default = 0 = 5s) seconds to allow remote
-	 * client to hold on to an idle HTTP/1.1 connection */
-	const char *log_filepath;
-	/**< VHOST: filepath to append logs to... this is opened before
-	 *		any dropping of initial privileges */
-	const struct lws_http_mount *mounts;
-	/**< VHOST: optional linked list of mounts for this vhost */
-	const char *server_string;
-	/**< CONTEXT: string used in HTTP headers to identify server
- *		software, if NULL, "libwebsockets". */
-	unsigned int pt_serv_buf_size;
-	/**< CONTEXT: 0 = default of 4096.  This buffer is used by
-	 * various service related features including file serving, it
-	 * defines the max chunk of file that can be sent at once.
-	 * At the risk of lws having to buffer failed large sends, it
-	 * can be increased to, eg, 128KiB to improve throughput. */
-	unsigned int max_http_header_data2;
-	/**< CONTEXT: if max_http_header_data is 0 and this
-	 * is nonzero, this will be used in place of the default.  It's
-	 * like this for compatibility with the original short version,
-	 * this is unsigned int length. */
-	long ssl_options_set;
-	/**< VHOST: Any bits set here will be set as server SSL options */
-	long ssl_options_clear;
-	/**< VHOST: Any bits set here will be cleared as server SSL options */
-	unsigned short ws_ping_pong_interval;
-	/**< CONTEXT: 0 for none, else interval in seconds between sending
-	 * PINGs on idle websocket connections.  When the PING is sent,
-	 * the PONG must come within the normal timeout_secs timeout period
-	 * or the connection will be dropped.
-	 * Any RX or TX traffic on the connection restarts the interval timer,
-	 * so a connection which always sends or receives something at intervals
-	 * less than the interval given here will never send PINGs / expect
-	 * PONGs.  Conversely as soon as the ws connection is established, an
-	 * idle connection will do the PING / PONG roundtrip as soon as
-	 * ws_ping_pong_interval seconds has passed without traffic
-	 */
-	const struct lws_protocol_vhost_options *headers;
-		/**< VHOST: pointer to optional linked list of per-vhost
-		 * canned headers that are added to server responses */
-
-	const struct lws_protocol_vhost_options *reject_service_keywords;
-	/**< CONTEXT: Optional list of keywords and rejection codes + text.
-	 *
-	 * The keywords are checked for existing in the user agent string.
-	 *
-	 * Eg, "badrobot" "404 Not Found"
-	 */
-	void *external_baggage_free_on_destroy;
-	/**< CONTEXT: NULL, or pointer to something externally malloc'd, that
-	 * should be freed when the context is destroyed.  This allows you to
-	 * automatically sync the freeing action to the context destruction
-	 * action, so there is no need for an external free() if the context
-	 * succeeded to create.
-	 */
-
-	const char *client_ssl_private_key_password;
-	/**< VHOST: Client SSL context init: NULL or the passphrase needed
-	 * for the private key */
-	const char *client_ssl_cert_filepath;
-	/**< VHOST: Client SSL context init:T he certificate the client
-	 * should present to the peer on connection */
-	const char *client_ssl_private_key_filepath;
-	/**<  VHOST: Client SSL context init: filepath to client private key
-	 * if this is set to NULL but client_ssl_cert_filepath is set, you
-	 * can handle the LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS
-	 * callback of protocols[0] to allow setting of the private key directly
-	 * via openSSL library calls */
-	const char *client_ssl_ca_filepath;
-	/**< VHOST: Client SSL context init: CA certificate filepath or NULL */
-	const void *client_ssl_ca_mem;
-	/**< VHOST: Client SSL context init: CA certificate memory buffer or
-	 * NULL... use this to load CA cert from memory instead of file */
-	unsigned int client_ssl_ca_mem_len;
-	/**< VHOST: Client SSL context init: length of client_ssl_ca_mem in
-	 * bytes */
-
-	const char *client_ssl_cipher_list;
-	/**< VHOST: Client SSL context init: List of valid ciphers to use (eg,
-	* "RC4-MD5:RC4-SHA:AES128-SHA:AES256-SHA:HIGH:!DSS:!aNULL"
-	* or you can leave it as NULL to get "DEFAULT" */
-
-	const struct lws_plat_file_ops *fops;
-	/**< CONTEXT: NULL, or pointer to an array of fops structs, terminated
-	 * by a sentinel with NULL .open.
-	 *
-	 * If NULL, lws provides just the platform file operations struct for
-	 * backwards compatibility.
-	 */
-	int simultaneous_ssl_restriction;
-	/**< CONTEXT: 0 (no limit) or limit of simultaneous SSL sessions
-	 * possible.*/
-	const char *socks_proxy_address;
-	/**< VHOST: If non-NULL, attempts to proxy via the given address.
-	 * If proxy auth is required, use format
-	 * "username:password\@server:port" */
-	unsigned int socks_proxy_port;
-	/**< VHOST: If socks_proxy_address was non-NULL, uses this port */
-#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
-	cap_value_t caps[4];
-	/**< CONTEXT: array holding Linux capabilities you want to
-	 * continue to be available to the server after it transitions
-	 * to a noprivileged user.  Usually none are needed but for, eg,
-	 * .bind_iface, CAP_NET_RAW is required.  This gives you a way
-	 * to still have the capability but drop root.
-	 */
-	char count_caps;
-	/**< CONTEXT: count of Linux capabilities in .caps[].  0 means
-	 * no capabilities will be inherited from root (the default) */
-#endif
-	int bind_iface;
-	/**< VHOST: nonzero to strictly bind sockets to the interface name in
-	 * .iface (eg, "eth2"), using SO_BIND_TO_DEVICE.
-	 *
-	 * Requires SO_BINDTODEVICE support from your OS and CAP_NET_RAW
-	 * capability.
-	 *
-	 * Notice that common things like access network interface IP from
-	 * your local machine use your lo / loopback interface and will be
-	 * disallowed by this.
-	 */
-	int ssl_info_event_mask;
-	/**< VHOST: mask of ssl events to be reported on LWS_CALLBACK_SSL_INFO
-	 * callback for connections on this vhost.  The mask values are of
-	 * the form SSL_CB_ALERT, defined in openssl/ssl.h.  The default of
-	 * 0 means no info events will be reported.
-	 */
-	unsigned int timeout_secs_ah_idle;
-	/**< VHOST: seconds to allow a client to hold an ah without using it.
-	 * 0 defaults to 10s. */
-	unsigned short ip_limit_ah;
-	/**< CONTEXT: max number of ah a single IP may use simultaneously
-	 *	      0 is no limit. This is a soft limit: if the limit is
-	 *	      reached, connections from that IP will wait in the ah
-	 *	      waiting list and not be able to acquire an ah until
-	 *	      a connection belonging to the IP relinquishes one it
-	 *	      already has.
-	 */
-	unsigned short ip_limit_wsi;
-	/**< CONTEXT: max number of wsi a single IP may use simultaneously.
-	 *	      0 is no limit.  This is a hard limit, connections from
-	 *	      the same IP will simply be dropped once it acquires the
-	 *	      amount of simultaneous wsi / accepted connections
-	 *	      given here.
-	 */
-	uint32_t	http2_settings[7];
-	/**< VHOST:  if http2_settings[0] is nonzero, the values given in
-	 *	      http2_settings[1]..[6] are used instead of the lws
-	 *	      platform default values.
-	 *	      Just leave all at 0 if you don't care.
-	 */
-	const char *error_document_404;
-	/**< VHOST: If non-NULL, when asked to serve a non-existent file,
-	 *          lws attempts to server this url path instead.  Eg,
-	 *          "/404.html" */
-	const char *alpn;
-	/**< CONTEXT: If non-NULL, default list of advertised alpn, comma-
-	 *	      separated
-	 *
-	 *     VHOST: If non-NULL, per-vhost list of advertised alpn, comma-
-	 *	      separated
-	 */
-	void **foreign_loops;
-	/**< CONTEXT: This is ignored if the context is not being started with
-	 *		an event loop, ie, .options has a flag like
-	 *		LWS_SERVER_OPTION_LIBUV.
-	 *
-	 *		NULL indicates lws should start its own even loop for
-	 *		each service thread, and deal with closing the loops
-	 *		when the context is destroyed.
-	 *
-	 *		Non-NULL means it points to an array of external
-	 *		("foreign") event loops that are to be used in turn for
-	 *		each service thread.  In the default case of 1 service
-	 *		thread, it can just point to one foreign event loop.
-	 */
-	void (*signal_cb)(void *event_lib_handle, int signum);
-	/**< CONTEXT: NULL: default signal handling.  Otherwise this receives
-	 *		the signal handler callback.  event_lib_handle is the
-	 *		native event library signal handle, eg uv_signal_t *
-	 *		for libuv.
-	 */
-	struct lws_context **pcontext;
-	/**< CONTEXT: if non-NULL, at the end of context destroy processing,
-	 * the pointer pointed to by pcontext is written with NULL.  You can
-	 * use this to let foreign event loops know that lws context destruction
-	 * is fully completed.
-	 */
-	void (*finalize)(struct lws_vhost *vh, void *arg);
-	/**< VHOST: NULL, or pointer to function that will be called back
-	 *	    when the vhost is just about to be freed.  The arg parameter
-	 *	    will be set to whatever finalize_arg is below.
-	 */
-	void *finalize_arg;
-	/**< VHOST: opaque pointer lws ignores but passes to the finalize
-	 *	    callback.  If you don't care, leave it NULL.
-	 */
-	unsigned int max_http_header_pool2;
-	/**< CONTEXT: if max_http_header_pool is 0 and this
-	 * is nonzero, this will be used in place of the default.  It's
-	 * like this for compatibility with the original short version:
-	 * this is unsigned int length. */
-
-	long ssl_client_options_set;
-	/**< VHOST: Any bits set here will be set as CLIENT SSL options */
-	long ssl_client_options_clear;
-	/**< VHOST: Any bits set here will be cleared as CLIENT SSL options */
-
-	const char *tls1_3_plus_cipher_list;
-	/**< VHOST: List of valid ciphers to use for incoming server connections
-	 * ON TLS1.3 AND ABOVE (eg, "TLS_CHACHA20_POLY1305_SHA256" on this vhost
-	 * or you can leave it as NULL to get "DEFAULT".
-	 * SEE .client_tls_1_3_plus_cipher_list to do the same on the vhost
-	 * client SSL_CTX.
-	 */
-	const char *client_tls_1_3_plus_cipher_list;
-	/**< VHOST: List of valid ciphers to use for outgoing client connections
-	 * ON TLS1.3 AND ABOVE on this vhost (eg,
-	 * "TLS_CHACHA20_POLY1305_SHA256") or you can leave it as NULL to get
-	 * "DEFAULT".
-	 */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility
-	 *
-	 * The below is to ensure later library versions with new
-	 * members added above will see 0 (default) even if the app
-	 * was not built against the newer headers.
-	 */
-
-	void *_unused[4]; /**< dummy */
-};
-
-/**
- * lws_create_context() - Create the websocket handler
- * \param info:	pointer to struct with parameters
- *
- *	This function creates the listening socket (if serving) and takes care
- *	of all initialization in one step.
- *
- *	If option LWS_SERVER_OPTION_EXPLICIT_VHOSTS is given, no vhost is
- *	created; you're expected to create your own vhosts afterwards using
- *	lws_create_vhost().  Otherwise a vhost named "default" is also created
- *	using the information in the vhost-related members, for compatibility.
- *
- *	After initialization, it returns a struct lws_context * that
- *	represents this server.  After calling, user code needs to take care
- *	of calling lws_service() with the context pointer to get the
- *	server's sockets serviced.  This must be done in the same process
- *	context as the initialization call.
- *
- *	The protocol callback functions are called for a handful of events
- *	including http requests coming in, websocket connections becoming
- *	established, and data arriving; it's also called periodically to allow
- *	async transmission.
- *
- *	HTTP requests are sent always to the FIRST protocol in protocol, since
- *	at that time websocket protocol has not been negotiated.  Other
- *	protocols after the first one never see any HTTP callback activity.
- *
- *	The server created is a simple http server by default; part of the
- *	websocket standard is upgrading this http connection to a websocket one.
- *
- *	This allows the same server to provide files like scripts and favicon /
- *	images or whatever over http and dynamic data over websockets all in
- *	one place; they're all handled in the user callback.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_context *
-lws_create_context(const struct lws_context_creation_info *info);
-
-
-/**
- * lws_context_destroy() - Destroy the websocket context
- * \param context:	Websocket context
- *
- *	This function closes any active connections and then frees the
- *	context.  After calling this, any further use of the context is
- *	undefined.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_context_destroy(struct lws_context *context);
-
-typedef int (*lws_reload_func)(void);
-
-/**
- * lws_context_deprecate() - Deprecate the websocket context
- *
- * \param context:	Websocket context
- * \param cb: Callback notified when old context listen sockets are closed
- *
- *	This function is used on an existing context before superceding it
- *	with a new context.
- *
- *	It closes any listen sockets in the context, so new connections are
- *	not possible.
- *
- *	And it marks the context to be deleted when the number of active
- *	connections into it falls to zero.
- *
- *	This is aimed at allowing seamless configuration reloads.
- *
- *	The callback cb will be called after the listen sockets are actually
- *	closed and may be reopened.  In the callback the new context should be
- *	configured and created.  (With libuv, socket close happens async after
- *	more loop events).
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_context_deprecate(struct lws_context *context, lws_reload_func cb);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_context_is_deprecated(struct lws_context *context);
-
-/**
- * lws_set_proxy() - Setups proxy to lws_context.
- * \param vhost:	pointer to struct lws_vhost you want set proxy for
- * \param proxy: pointer to c string containing proxy in format address:port
- *
- * Returns 0 if proxy string was parsed and proxy was setup.
- * Returns -1 if proxy is NULL or has incorrect format.
- *
- * This is only required if your OS does not provide the http_proxy
- * environment variable (eg, OSX)
- *
- *   IMPORTANT! You should call this function right after creation of the
- *   lws_context and before call to connect. If you call this
- *   function after connect behavior is undefined.
- *   This function will override proxy settings made on lws_context
- *   creation with genenv() call.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_set_proxy(struct lws_vhost *vhost, const char *proxy);
-
-/**
- * lws_set_socks() - Setup socks to lws_context.
- * \param vhost:	pointer to struct lws_vhost you want set socks for
- * \param socks: pointer to c string containing socks in format address:port
- *
- * Returns 0 if socks string was parsed and socks was setup.
- * Returns -1 if socks is NULL or has incorrect format.
- *
- * This is only required if your OS does not provide the socks_proxy
- * environment variable (eg, OSX)
- *
- *   IMPORTANT! You should call this function right after creation of the
- *   lws_context and before call to connect. If you call this
- *   function after connect behavior is undefined.
- *   This function will override proxy settings made on lws_context
- *   creation with genenv() call.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_set_socks(struct lws_vhost *vhost, const char *socks);
-
-struct lws_vhost;
-
-/**
- * lws_create_vhost() - Create a vhost (virtual server context)
- * \param context:	pointer to result of lws_create_context()
- * \param info:		pointer to struct with parameters
- *
- * This function creates a virtual server (vhost) using the vhost-related
- * members of the info struct.  You can create many vhosts inside one context
- * if you created the context with the option LWS_SERVER_OPTION_EXPLICIT_VHOSTS
- */
-LWS_VISIBLE LWS_EXTERN struct lws_vhost *
-lws_create_vhost(struct lws_context *context,
-		 const struct lws_context_creation_info *info);
-
-/**
- * lws_vhost_destroy() - Destroy a vhost (virtual server context)
- *
- * \param vh:		pointer to result of lws_create_vhost()
- *
- * This function destroys a vhost.  Normally, if you just want to exit,
- * then lws_destroy_context() will take care of everything.  If you want
- * to destroy an individual vhost and all connections and allocations, you
- * can do it with this.
- *
- * If the vhost has a listen sockets shared by other vhosts, it will be given
- * to one of the vhosts sharing it rather than closed.
- *
- * The vhost close is staged according to the needs of the event loop, and if
- * there are multiple service threads.  At the point the vhost itself if
- * about to be freed, if you provided a finalize callback and optional arg at
- * vhost creation time, it will be called just before the vhost is freed.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_vhost_destroy(struct lws_vhost *vh);
-
-/**
- * lwsws_get_config_globals() - Parse a JSON server config file
- * \param info:		pointer to struct with parameters
- * \param d:		filepath of the config file
- * \param config_strings: storage for the config strings extracted from JSON,
- * 			  the pointer is incremented as strings are stored
- * \param len:		pointer to the remaining length left in config_strings
- *			  the value is decremented as strings are stored
- *
- * This function prepares a n lws_context_creation_info struct with global
- * settings from a file d.
- *
- * Requires CMake option LWS_WITH_LEJP_CONF to have been enabled
- */
-LWS_VISIBLE LWS_EXTERN int
-lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
-			 char **config_strings, int *len);
-
-/**
- * lwsws_get_config_vhosts() - Create vhosts from a JSON server config file
- * \param context:	pointer to result of lws_create_context()
- * \param info:		pointer to struct with parameters
- * \param d:		filepath of the config file
- * \param config_strings: storage for the config strings extracted from JSON,
- * 			  the pointer is incremented as strings are stored
- * \param len:		pointer to the remaining length left in config_strings
- *			  the value is decremented as strings are stored
- *
- * This function creates vhosts into a context according to the settings in
- *JSON files found in directory d.
- *
- * Requires CMake option LWS_WITH_LEJP_CONF to have been enabled
- */
-LWS_VISIBLE LWS_EXTERN int
-lwsws_get_config_vhosts(struct lws_context *context,
-			struct lws_context_creation_info *info, const char *d,
-			char **config_strings, int *len);
-
-/** lws_vhost_get() - \deprecated deprecated: use lws_get_vhost() */
-LWS_VISIBLE LWS_EXTERN struct lws_vhost *
-lws_vhost_get(struct lws *wsi) LWS_WARN_DEPRECATED;
-
-/**
- * lws_get_vhost() - return the vhost a wsi belongs to
- *
- * \param wsi: which connection
- */
-LWS_VISIBLE LWS_EXTERN struct lws_vhost *
-lws_get_vhost(struct lws *wsi);
-
-/**
- * lws_get_vhost_name() - returns the name of a vhost
- *
- * \param vhost: which vhost
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_get_vhost_name(struct lws_vhost *vhost);
-
-/**
- * lws_get_vhost_port() - returns the port a vhost listens on, or -1
- *
- * \param vhost: which vhost
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_get_vhost_port(struct lws_vhost *vhost);
-
-/**
- * lws_get_vhost_user() - returns the user pointer for the vhost
- *
- * \param vhost: which vhost
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_get_vhost_user(struct lws_vhost *vhost);
-
-/**
- * lws_get_vhost_iface() - returns the binding for the vhost listen socket
- *
- * \param vhost: which vhost
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_get_vhost_iface(struct lws_vhost *vhost);
-
-/**
- * lws_json_dump_vhost() - describe vhost state and stats in JSON
- *
- * \param vh: the vhost
- * \param buf: buffer to fill with JSON
- * \param len: max length of buf
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_json_dump_vhost(const struct lws_vhost *vh, char *buf, int len);
-
-/**
- * lws_json_dump_context() - describe context state and stats in JSON
- *
- * \param context: the context
- * \param buf: buffer to fill with JSON
- * \param len: max length of buf
- * \param hide_vhosts: nonzero to not provide per-vhost mount etc information
- *
- * Generates a JSON description of vhost state into buf
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_json_dump_context(const struct lws_context *context, char *buf, int len,
-		      int hide_vhosts);
-
-/**
- * lws_vhost_user() - get the user data associated with the vhost
- * \param vhost: Websocket vhost
- *
- * This returns the optional user pointer that can be attached to
- * a vhost when it was created.  Lws never dereferences this pointer, it only
- * sets it when the vhost is created, and returns it using this api.
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_vhost_user(struct lws_vhost *vhost);
-
-/**
- * lws_context_user() - get the user data associated with the context
- * \param context: Websocket context
- *
- * This returns the optional user allocation that can be attached to
- * the context the sockets live in at context_create time.  It's a way
- * to let all sockets serviced in the same context share data without
- * using globals statics in the user code.
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_context_user(struct lws_context *context);
-
-/*! \defgroup vhost-mounts Vhost mounts and options
- * \ingroup context-and-vhost-creation
- *
- * ##Vhost mounts and options
- */
-///@{
-/** struct lws_protocol_vhost_options - linked list of per-vhost protocol
- * 					name=value options
- *
- * This provides a general way to attach a linked-list of name=value pairs,
- * which can also have an optional child link-list using the options member.
- */
-struct lws_protocol_vhost_options {
-	const struct lws_protocol_vhost_options *next; /**< linked list */
-	const struct lws_protocol_vhost_options *options; /**< child linked-list of more options for this node */
-	const char *name; /**< name of name=value pair */
-	const char *value; /**< value of name=value pair */
-};
-
-/** enum lws_mount_protocols
- * This specifies the mount protocol for a mountpoint, whether it is to be
- * served from a filesystem, or it is a cgi etc.
- */
-enum lws_mount_protocols {
-	LWSMPRO_HTTP		= 0, /**< http reverse proxy */
-	LWSMPRO_HTTPS		= 1, /**< https reverse proxy */
-	LWSMPRO_FILE		= 2, /**< serve from filesystem directory */
-	LWSMPRO_CGI		= 3, /**< pass to CGI to handle */
-	LWSMPRO_REDIR_HTTP	= 4, /**< redirect to http:// url */
-	LWSMPRO_REDIR_HTTPS	= 5, /**< redirect to https:// url */
-	LWSMPRO_CALLBACK	= 6, /**< hand by named protocol's callback */
-};
-
-/** struct lws_http_mount
- *
- * arguments for mounting something in a vhost's url namespace
- */
-struct lws_http_mount {
-	const struct lws_http_mount *mount_next;
-	/**< pointer to next struct lws_http_mount */
-	const char *mountpoint;
-	/**< mountpoint in http pathspace, eg, "/" */
-	const char *origin;
-	/**< path to be mounted, eg, "/var/www/warmcat.com" */
-	const char *def;
-	/**< default target, eg, "index.html" */
-	const char *protocol;
-	/**<"protocol-name" to handle mount */
-
-	const struct lws_protocol_vhost_options *cgienv;
-	/**< optional linked-list of cgi options.  These are created
-	 * as environment variables for the cgi process
-	 */
-	const struct lws_protocol_vhost_options *extra_mimetypes;
-	/**< optional linked-list of mimetype mappings */
-	const struct lws_protocol_vhost_options *interpret;
-	/**< optional linked-list of files to be interpreted */
-
-	int cgi_timeout;
-	/**< seconds cgi is allowed to live, if cgi://mount type */
-	int cache_max_age;
-	/**< max-age for reuse of client cache of files, seconds */
-	unsigned int auth_mask;
-	/**< bits set here must be set for authorized client session */
-
-	unsigned int cache_reusable:1; /**< set if client cache may reuse this */
-	unsigned int cache_revalidate:1; /**< set if client cache should revalidate on use */
-	unsigned int cache_intermediaries:1; /**< set if intermediaries are allowed to cache */
-
-	unsigned char origin_protocol; /**< one of enum lws_mount_protocols */
-	unsigned char mountpoint_len; /**< length of mountpoint string */
-
-	const char *basic_auth_login_file;
-	/**<NULL, or filepath to use to check basic auth logins against */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility
-	 *
-	 * The below is to ensure later library versions with new
-	 * members added above will see 0 (default) even if the app
-	 * was not built against the newer headers.
-	 */
-
-	void *_unused[2]; /**< dummy */
-};
-
-///@}
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-dbus.h b/thirdparty/libwebsockets/include/libwebsockets/lws-dbus.h
deleted file mode 100644
index 63cfd15f18..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-dbus.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * must be included manually as
- *
- *  #include <libwebsockets/lws-dbus.h>
- *
- * if dbus apis needed
- */
-
-#if !defined(__LWS_DBUS_H__)
-#define __LWS_DBUS_H__
-
-#include <dbus/dbus.h>
-
-/* helper type to simplify implementing methods as individual functions */
-typedef DBusHandlerResult (*lws_dbus_message_handler)(DBusConnection *conn,
-			   DBusMessage *message, DBusMessage **reply, void *d);
-
-struct lws_dbus_ctx;
-typedef void (*lws_dbus_closing_t)(struct lws_dbus_ctx *ctx);
-
-struct lws_dbus_ctx {
-	struct lws_dll next; /* dbusserver ctx: HEAD of accepted list */
-	struct lws_vhost *vh; /* the vhost we logically bind to in lws */
-	int tsi;	/* the lws thread service index (0 if only one service
-			   thread as is the default */
-	DBusConnection *conn;
-	DBusServer *dbs;
-	DBusWatch *w[4];
- 	DBusPendingCall *pc;
-
- 	char hup;
- 	char timeouts;
-
- 	/* cb_closing callback will be called after the connection and this
- 	 * related ctx struct have effectively gone out of scope.
- 	 *
- 	 * The callback should close and clean up the connection and free the
- 	 * ctx.
- 	 */
- 	lws_dbus_closing_t cb_closing;
-};
-
-/**
- * lws_dbus_connection_setup() - bind dbus connection object to lws event loop
- *
- * \param ctx: additional information about the connection
- * \param conn: the DBusConnection object to bind
- *
- * This configures a DBusConnection object to use lws for watchers and timeout
- * operations.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_dbus_connection_setup(struct lws_dbus_ctx *ctx, DBusConnection *conn,
-			  lws_dbus_closing_t cb_closing);
-
-/**
- * lws_dbus_server_listen() - bind dbus connection object to lws event loop
- *
- * \param ctx: additional information about the connection
- * \param ads: the DBUS address to listen on, eg, "unix:abstract=mysocket"
- * \param err: a DBusError object to take any extra error information
- * \param new_conn: a callback function to prepare new accepted connections
- *
- * This creates a DBusServer and binds it to the lws event loop, and your
- * callback to accept new connections.
- */
-LWS_VISIBLE LWS_EXTERN DBusServer *
-lws_dbus_server_listen(struct lws_dbus_ctx *ctx, const char *ads,
-		       DBusError *err, DBusNewConnectionFunction new_conn);
-
-#endif
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-diskcache.h b/thirdparty/libwebsockets/include/libwebsockets/lws-diskcache.h
deleted file mode 100644
index eb63fdd855..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-diskcache.h
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * libwebsockets - disk cache helpers
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup diskcache LWS disk cache
- * ## Disk cache API
- *
- * Lws provides helper apis useful if you need a disk cache containing hashed
- * files and need to delete files from it on an LRU basis to keep it below some
- * size limit.
- *
- * The API `lws_diskcache_prepare()` deals with creating the cache dir and
- * 256 subdirs, which are used according to the first two chars of the hex
- * hash of the cache file.
- *
- * `lws_diskcache_create()` and `lws_diskcache_destroy()` allocate and free
- * an opaque struct that represents the disk cache.
- *
- * `lws_diskcache_trim()` should be called at eg, 1s intervals to perform the
- * cache dir monitoring and LRU autodelete in the background lazily.  It can
- * be done in its own thread or on a timer... it monitors the directories in a
- * stateful way that stats one or more file in the cache per call, and keeps
- * a list of the oldest files as it goes.  When it completes a scan, if the
- * aggregate size is over the limit, it will delete oldest files first to try
- * to keep it under the limit.
- *
- * The cache size monitoring is extremely efficient in time and memory even when
- * the cache directory becomes huge.
- *
- * `lws_diskcache_query()` is used to determine if the file already exists in
- * the cache, or if it must be created.  If it must be created, then the file
- * is opened using a temp name that must be converted to a findable name with
- * `lws_diskcache_finalize_name()` when the generation of the file contents are
- * complete.  Aborted cached files that did not complete generation will be
- * flushed by the LRU eventually.  If the file already exists, it is 'touched'
- * to make it new again and the fd returned.
- *
- */
-///@{
-
-struct lws_diskcache_scan;
-
-/**
- * lws_diskcache_create() - creates an opaque struct representing the disk cache
- *
- * \param cache_dir_base: The cache dir path, eg `/var/cache/mycache`
- * \param cache_size_limit: maximum size on disk the cache is allowed to use
- *
- * This returns an opaque `struct lws_diskcache_scan *` which represents the
- * disk cache, the trim scanning state and so on.  You should use
- * `lws_diskcache_destroy()` to free it to destroy it.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_diskcache_scan *
-lws_diskcache_create(const char *cache_dir_base, uint64_t cache_size_limit);
-
-/**
- * lws_diskcache_destroy() - destroys the pointer returned by ...create()
- *
- * \param lds: pointer to the pointer returned by lws_diskcache_create()
- *
- * Frees *lds and any allocations it did, and then sets *lds to NULL and
- * returns.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_diskcache_destroy(struct lws_diskcache_scan **lds);
-
-/**
- * lws_diskcache_prepare() - ensures the cache dir structure exists on disk
- *
- * \param cache_base_dir: The cache dir path, eg `/var/cache/mycache`
- * \param mode: octal dir mode to enforce, like 0700
- * \param uid: uid the cache dir should belong to
- *
- * This should be called while your app is still privileged.  It will create
- * the cache directory structure on disk as necessary, enforce the given access
- * mode on it and set the given uid as the owner.  It won't make any trouble
- * if the cache already exists.
- *
- * Typically the mode is 0700 and the owner is the user that your application
- * will transition to use when it drops root privileges.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_diskcache_prepare(const char *cache_base_dir, int mode, int uid);
-
-#define LWS_DISKCACHE_QUERY_NO_CACHE	0
-#define LWS_DISKCACHE_QUERY_EXISTS	1
-#define LWS_DISKCACHE_QUERY_CREATING	2
-#define LWS_DISKCACHE_QUERY_ONGOING	3 /* something else is creating it */
-
-/**
- * lws_diskcache_query() - ensures the cache dir structure exists on disk
- *
- * \param lds: The opaque struct representing the disk cache
- * \param is_bot: nonzero means the request is from a bot.  Don't create new cache contents if so.
- * \param hash_hex: hex string representation of the cache object hash
- * \param _fd: pointer to the fd to be set
- * \param cache: destination string to take the cache filepath
- * \param cache_len: length of the buffer at `cache`
- * \param extant_cache_len: pointer to a size_t to take any extant cached file size
- *
- * This function is called when you want to find if the hashed name already
- * exists in the cache.  The possibilities for the return value are
- *
- *  - LWS_DISKCACHE_QUERY_NO_CACHE: It's not in the cache and you can't create
- *    it in the cache for whatever reason.
- *  - LWS_DISKCACHE_QUERY_EXISTS: It exists in the cache.  It's open RDONLY and
- *    *_fd has been set to the file descriptor.  *extant_cache_len has been set
- *    to the size of the cached file in bytes.  cache has been set to the
- *    full filepath of the cached file.  Closing _fd is your responsibility.
- *  - LWS_DISKCACHE_QUERY_CREATING: It didn't exist, but a temp file has been
- *    created in the cache and *_fd set to a file descriptor opened on it RDWR.
- *    You should create the contents, and call `lws_diskcache_finalize_name()`
- *    when it is done.  Closing _fd is your responsibility.
- *  - LWS_DISKCACHE_QUERY_ONGOING: not returned by this api, but you may find it
- *    desirable to make a wrapper function which can handle another asynchronous
- *    process that is already creating the cached file.  This can be used to
- *    indicate that situation externally... how to determine the same thing is
- *    already being generated is out of scope of this api.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_diskcache_query(struct lws_diskcache_scan *lds, int is_bot,
-		    const char *hash_hex, int *_fd, char *cache, int cache_len,
-		    size_t *extant_cache_len);
-
-/**
- * lws_diskcache_query() - ensures the cache dir structure exists on disk
- *
- * \param cache: The cache file temp name returned with LWS_DISKCACHE_QUERY_CREATING
- *
- * This renames the cache file you are creating to its final name.  It should
- * be called on the temp name returned by `lws_diskcache_query()` if it gave a
- * LWS_DISKCACHE_QUERY_CREATING return, after you have filled the cache file and
- * closed it.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_diskcache_finalize_name(char *cache);
-
-/**
- * lws_diskcache_trim() - performs one or more file checks in the cache for size management
- *
- * \param lds: The opaque object representing the cache
- *
- * This should be called periodically to statefully walk the cache on disk
- * collecting the oldest files.  When it has visited every file, if the cache
- * is oversize it will delete the oldest files until it's back under size again.
- *
- * Each time it's called, it will look at one or more dir in the cache.  If
- * called when the cache is oversize, it increases the amount of work done each
- * call until it is reduced again.  Typically it will take 256 calls before it
- * deletes anything, so if called once per second, it will delete files once
- * every 4 minutes.  Each call is very inexpensive both in memory and time.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_diskcache_trim(struct lws_diskcache_scan *lds);
-
-
-/**
- * lws_diskcache_secs_to_idle() - see how long to idle before calling trim
- *
- * \param lds: The opaque object representing the cache
- *
- * If the cache is undersize, there's no need to monitor it immediately.  This
- * suggests how long to "sleep" before calling `lws_diskcache_trim()` again.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_diskcache_secs_to_idle(struct lws_diskcache_scan *lds);
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-esp32.h b/thirdparty/libwebsockets/include/libwebsockets/lws-esp32.h
deleted file mode 100644
index 2d1c0f42bb..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-esp32.h
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-typedef int lws_sockfd_type;
-typedef int lws_filefd_type;
-
-struct pollfd {
-	lws_sockfd_type fd; /**< fd related to */
-	short events; /**< which POLL... events to respond to */
-	short revents; /**< which POLL... events occurred */
-};
-#define POLLIN		0x0001
-#define POLLPRI		0x0002
-#define POLLOUT		0x0004
-#define POLLERR		0x0008
-#define POLLHUP		0x0010
-#define POLLNVAL	0x0020
-
-#include <freertos/FreeRTOS.h>
-#include <freertos/event_groups.h>
-#include <string.h>
-#include "esp_wifi.h"
-#include "esp_system.h"
-#include "esp_event.h"
-#include "esp_event_loop.h"
-#include "nvs.h"
-#include "driver/gpio.h"
-#include "esp_spi_flash.h"
-#include "freertos/timers.h"
-
-#if !defined(CONFIG_FREERTOS_HZ)
-#define CONFIG_FREERTOS_HZ 100
-#endif
-
-typedef TimerHandle_t uv_timer_t;
-typedef void uv_cb_t(uv_timer_t *);
-typedef void * uv_handle_t;
-
-struct timer_mapping {
-	uv_cb_t *cb;
-	uv_timer_t *t;
-};
-
-#define UV_VERSION_MAJOR 1
-
-#define lws_uv_getloop(a, b) (NULL)
-
-static LWS_INLINE void uv_timer_init(void *l, uv_timer_t *t)
-{
-	(void)l;
-	*t = NULL;
-}
-
-extern void esp32_uvtimer_cb(TimerHandle_t t);
-
-static LWS_INLINE void uv_timer_start(uv_timer_t *t, uv_cb_t *cb, int first, int rep)
-{
-	struct timer_mapping *tm = (struct timer_mapping *)malloc(sizeof(*tm));
-
-	if (!tm)
-		return;
-
-	tm->t = t;
-	tm->cb = cb;
-
-	*t = xTimerCreate("x", pdMS_TO_TICKS(first), !!rep, tm,
-			  (TimerCallbackFunction_t)esp32_uvtimer_cb);
-	xTimerStart(*t, 0);
-}
-
-static LWS_INLINE void uv_timer_stop(uv_timer_t *t)
-{
-	xTimerStop(*t, 0);
-}
-
-static LWS_INLINE void uv_close(uv_handle_t *h, void *v)
-{
-	free(pvTimerGetTimerID((uv_timer_t)h));
-	xTimerDelete(*(uv_timer_t *)h, 0);
-}
-
-/* ESP32 helper declarations */
-
-#include <mdns.h>
-#include <esp_partition.h>
-
-#define LWS_PLUGIN_STATIC
-#define LWS_MAGIC_REBOOT_TYPE_ADS 0x50001ffc
-#define LWS_MAGIC_REBOOT_TYPE_REQ_FACTORY 0xb00bcafe
-#define LWS_MAGIC_REBOOT_TYPE_FORCED_FACTORY 0xfaceb00b
-#define LWS_MAGIC_REBOOT_TYPE_FORCED_FACTORY_BUTTON 0xf0cedfac
-#define LWS_MAGIC_REBOOT_TYPE_REQ_FACTORY_ERASE_OTA 0xfac0eeee
-
-/* user code provides these */
-
-extern void
-lws_esp32_identify_physical_device(void);
-
-/* lws-plat-esp32 provides these */
-
-typedef void (*lws_cb_scan_done)(uint16_t count, wifi_ap_record_t *recs, void *arg);
-
-enum genled_state {
-	LWSESP32_GENLED__INIT,
-	LWSESP32_GENLED__LOST_NETWORK,
-	LWSESP32_GENLED__NO_NETWORK,
-	LWSESP32_GENLED__CONN_AP,
-	LWSESP32_GENLED__GOT_IP,
-	LWSESP32_GENLED__OK,
-};
-
-struct lws_group_member {
-	struct lws_group_member *next;
-	uint64_t last_seen;
-	char model[16];
-	char role[16];
-	char host[32];
-	char mac[20];
-	int width, height;
-	struct ip4_addr addr;
-	struct ip6_addr addrv6;
-	uint8_t	flags;
-};
-
-#define LWS_SYSTEM_GROUP_MEMBER_ADD		1
-#define LWS_SYSTEM_GROUP_MEMBER_CHANGE		2
-#define LWS_SYSTEM_GROUP_MEMBER_REMOVE		3
-
-#define LWS_GROUP_FLAG_SELF 1
-
-struct lws_esp32 {
-	char sta_ip[16];
-	char sta_mask[16];
-	char sta_gw[16];
-	char serial[16];
-	char opts[16];
-	char model[16];
-	char group[16];
-	char role[16];
-	char ssid[4][64];
-	char password[4][64];
-	char active_ssid[64];
-	char access_pw[16];
-	char hostname[32];
-	char mac[20];
-	char le_dns[64];
-	char le_email[64];
-       	char region;
-       	char inet;
-	char conn_ap;
-
-	enum genled_state genled;
-	uint64_t genled_t;
-
-	lws_cb_scan_done scan_consumer;
-	void *scan_consumer_arg;
-	struct lws_group_member *first;
-	int extant_group_members;
-
-	char acme;
-	char upload;
-
-	volatile char button_is_down;
-};
-
-struct lws_esp32_image {
-	uint32_t romfs;
-	uint32_t romfs_len;
-	uint32_t json;
-	uint32_t json_len;
-};
-
-extern struct lws_esp32 lws_esp32;
-struct lws_vhost;
-
-extern esp_err_t
-lws_esp32_event_passthru(void *ctx, system_event_t *event);
-extern void
-lws_esp32_wlan_config(void);
-extern void
-lws_esp32_wlan_start_ap(void);
-extern void
-lws_esp32_wlan_start_station(void);
-struct lws_context_creation_info;
-extern void
-lws_esp32_set_creation_defaults(struct lws_context_creation_info *info);
-extern struct lws_context *
-lws_esp32_init(struct lws_context_creation_info *, struct lws_vhost **pvh);
-extern int
-lws_esp32_wlan_nvs_get(int retry);
-extern esp_err_t
-lws_nvs_set_str(nvs_handle handle, const char* key, const char* value);
-extern void
-lws_esp32_restart_guided(uint32_t type);
-extern const esp_partition_t *
-lws_esp_ota_get_boot_partition(void);
-extern int
-lws_esp32_get_image_info(const esp_partition_t *part, struct lws_esp32_image *i, char *json, int json_len);
-extern int
-lws_esp32_leds_network_indication(void);
-
-extern uint32_t lws_esp32_get_reboot_type(void);
-extern uint16_t lws_esp32_sine_interp(int n);
-
-/* required in external code by esp32 plat (may just return if no leds) */
-extern void lws_esp32_leds_timer_cb(TimerHandle_t th);
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-fts.h b/thirdparty/libwebsockets/include/libwebsockets/lws-fts.h
deleted file mode 100644
index 29405bd6fd..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-fts.h
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * libwebsockets - fulltext search
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup search Search
- *
- * ##Full-text search
- *
- * Lws provides superfast indexing and fulltext searching from index files on
- * storage.
- */
-///@{
-
-struct lws_fts;
-struct lws_fts_file;
-
-/*
- * Queries produce their results in an lwsac, using these public API types.
- * The first thing in the lwsac is always a struct lws_fts_result (see below)
- * containing heads for linked-lists of the other result types.
- */
-
-/* one filepath's results */
-
-struct lws_fts_result_filepath {
-	struct lws_fts_result_filepath *next;
-	int matches;	/* logical number of matches */
-	int matches_length;	/* bytes in length table (may be zero) */
-	int lines_in_file;
-	int filepath_length;
-
-	/* - uint32_t line table follows (first for alignment) */
-	/* - filepath (of filepath_length) follows */
-};
-
-/* autocomplete result */
-
-struct lws_fts_result_autocomplete {
-	struct lws_fts_result_autocomplete *next;
-	int instances;
-	int agg_instances;
-	int ac_length;
-	char elided; /* children skipped in interest of antecedent children */
-	char has_children;
-
-	/* - autocomplete suggestion (of length ac_length) follows */
-};
-
-/*
- * The results lwsac always starts with this.  If no results and / or no
- * autocomplete the members may be NULL.  This implies the symbol nor any
- * suffix on it exists in the trie file.
- */
-struct lws_fts_result {
-	struct lws_fts_result_filepath *filepath_head;
-	struct lws_fts_result_autocomplete *autocomplete_head;
-	int duration_ms;
-	int effective_flags; /* the search flags that were used */
-};
-
-/*
- * index creation functions
- */
-
-/**
- * lws_fts_create() - Create a new index file
- *
- * \param fd: The fd opened for write
- *
- * Inits a new index file, returning a struct lws_fts to represent it
- */
-LWS_VISIBLE LWS_EXTERN struct lws_fts *
-lws_fts_create(int fd);
-
-/**
- * lws_fts_destroy() - Finalize a new index file / destroy the trie lwsac
- *
- * \param trie: The previously opened index being finalized
- *
- * Finalizes an index file that was being created, and frees the memory involved
- * *trie is set to NULL afterwards.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_fts_destroy(struct lws_fts **trie);
-
-/**
- * lws_fts_file_index() - Create a new entry in the trie file for an input path
- *
- * \param t: The previously opened index being written
- * \param filepath: The filepath (which may be virtual) associated with this file
- * \param filepath_len: The number of chars in the filepath
- * \param priority: not used yet
- *
- * Returns an ordinal that represents this new filepath in the index file.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_fts_file_index(struct lws_fts *t, const char *filepath, int filepath_len,
-		   int priority);
-
-/**
- * lws_fts_fill() - Process all or a bufferload of input file
- *
- * \param t: The previously opened index being written
- * \param file_index: The ordinal representing this input filepath
- * \param buf: A bufferload of data from the input file
- * \param len: The number of bytes in buf
- *
- * Indexes a buffer of data from the input file.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_fts_fill(struct lws_fts *t, uint32_t file_index, const char *buf,
-	     size_t len);
-
-/**
- * lws_fts_serialize() - Store the in-memory trie into the index file
- *
- * \param t: The previously opened index being written
- *
- * The trie is held in memory where it can be added to... after all the input
- * filepaths and data have been processed, this is called to serialize /
- * write the trie data into the index file.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_fts_serialize(struct lws_fts *t);
-
-/*
- * index search functions
- */
-
-/**
- * lws_fts_open() - Open an existing index file to search it
- *
- * \param filepath: The filepath to the index file to open
- *
- * Opening the index file returns an opaque struct lws_fts_file * that is
- * used to perform other operations on it, or NULL if it can't be opened.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_fts_file *
-lws_fts_open(const char *filepath);
-
-#define LWSFTS_F_QUERY_AUTOCOMPLETE	(1 << 0)
-#define LWSFTS_F_QUERY_FILES		(1 << 1)
-#define LWSFTS_F_QUERY_FILE_LINES	(1 << 2)
-#define LWSFTS_F_QUERY_QUOTE_LINE	(1 << 3)
-
-struct lws_fts_search_params {
-	/* the actual search term */
-	const char *needle;
-	 /* if non-NULL, FILE results for this filepath only */
-	const char *only_filepath;
-	/* will be set to the results lwsac */
-	struct lwsac *results_head;
-	/* combination of LWSFTS_F_QUERY_* flags */
-	int flags;
-	/* maximum number of autocomplete suggestions to return */
-	int max_autocomplete;
-	/* maximum number of filepaths to return */
-	int max_files;
-	/* maximum number of line number results to return per filepath */
-	int max_lines;
-};
-
-/**
- * lws_fts_search() - Perform a search operation on an index
- *
- * \param jtf: The index file struct returned by lws_fts_open
- * \param ftsp: The struct lws_fts_search_params filled in by the caller
- *
- * The caller should memset the ftsp struct to 0 to ensure members that may be
- * introduced in later versions contain known values, then set the related
- * members to describe the kind of search action required.
- *
- * ftsp->results_head is the results lwsac, or NULL.  It should be freed with
- * lwsac_free() when the results are finished with.
- *
- * Returns a pointer into the results lwsac that is a struct lws_fts_result
- * containing the head pointers into linked-lists of results for autocomplete
- * and filepath data, along with some sundry information.  This does not need
- * to be freed since freeing the lwsac will also remove this and everything it
- * points to.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_fts_result *
-lws_fts_search(struct lws_fts_file *jtf, struct lws_fts_search_params *ftsp);
-
-/**
- * lws_fts_close() - Close a previously-opened index file
- *
- * \param jtf: The pointer returned from the open
- *
- * Closes the file handle on the index and frees any allocations
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_fts_close(struct lws_fts_file *jtf);
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-genhash.h b/thirdparty/libwebsockets/include/libwebsockets/lws-genhash.h
deleted file mode 100644
index a2e4f8ab6a..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-genhash.h
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup generic hash
- * ## Generic Hash related functions
- *
- * Lws provides generic hash / digest accessors that abstract the ones
- * provided by whatever OpenSSL library you are linking against.
- *
- * It lets you use the same code if you build against mbedtls or OpenSSL
- * for example.
- */
-///@{
-
-enum lws_genhash_types {
-	LWS_GENHASH_TYPE_SHA1,
-	LWS_GENHASH_TYPE_SHA256,
-	LWS_GENHASH_TYPE_SHA384,
-	LWS_GENHASH_TYPE_SHA512,
-};
-
-enum lws_genhmac_types {
-	LWS_GENHMAC_TYPE_SHA256,
-	LWS_GENHMAC_TYPE_SHA384,
-	LWS_GENHMAC_TYPE_SHA512,
-};
-
-#define LWS_GENHASH_LARGEST 64
-
-struct lws_genhash_ctx {
-        uint8_t type;
-#if defined(LWS_WITH_MBEDTLS)
-        union {
-		mbedtls_sha1_context sha1;
-		mbedtls_sha256_context sha256;
-		mbedtls_sha512_context sha512; /* 384 also uses this */
-		const mbedtls_md_info_t *hmac;
-        } u;
-#else
-        const EVP_MD *evp_type;
-        EVP_MD_CTX *mdctx;
-#endif
-};
-
-struct lws_genhmac_ctx {
-        uint8_t type;
-#if defined(LWS_WITH_MBEDTLS)
-	const mbedtls_md_info_t *hmac;
-	mbedtls_md_context_t ctx;
-#else
-        const EVP_MD *evp_type;
-        EVP_MD_CTX *ctx;
-#endif
-};
-
-/** lws_genhash_size() - get hash size in bytes
- *
- * \param type:	one of LWS_GENHASH_TYPE_...
- *
- * Returns number of bytes in this type of hash
- */
-LWS_VISIBLE LWS_EXTERN size_t LWS_WARN_UNUSED_RESULT
-lws_genhash_size(enum lws_genhash_types type);
-
-/** lws_genhmac_size() - get hash size in bytes
- *
- * \param type:	one of LWS_GENHASH_TYPE_...
- *
- * Returns number of bytes in this type of hmac
- */
-LWS_VISIBLE LWS_EXTERN size_t LWS_WARN_UNUSED_RESULT
-lws_genhmac_size(enum lws_genhmac_types type);
-
-/** lws_genhash_init() - prepare your struct lws_genhash_ctx for use
- *
- * \param ctx: your struct lws_genhash_ctx
- * \param type:	one of LWS_GENHASH_TYPE_...
- *
- * Initializes the hash context for the type you requested
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_genhash_init(struct lws_genhash_ctx *ctx, enum lws_genhash_types type);
-
-/** lws_genhash_update() - digest len bytes of the buffer starting at in
- *
- * \param ctx: your struct lws_genhash_ctx
- * \param in: start of the bytes to digest
- * \param len: count of bytes to digest
- *
- * Updates the state of your hash context to reflect digesting len bytes from in
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_genhash_update(struct lws_genhash_ctx *ctx, const void *in, size_t len);
-
-/** lws_genhash_destroy() - copy out the result digest and destroy the ctx
- *
- * \param ctx: your struct lws_genhash_ctx
- * \param result: NULL, or where to copy the result hash
- *
- * Finalizes the hash and copies out the digest.  Destroys any allocations such
- * that ctx can safely go out of scope after calling this.
- *
- * NULL result is supported so that you can destroy the ctx cleanly on error
- * conditions, where there is no valid result.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genhash_destroy(struct lws_genhash_ctx *ctx, void *result);
-
-/** lws_genhmac_init() - prepare your struct lws_genhmac_ctx for use
- *
- * \param ctx: your struct lws_genhmac_ctx
- * \param type:	one of LWS_GENHMAC_TYPE_...
- * \param key: pointer to the start of the HMAC key
- * \param key_len: length of the HMAC key
- *
- * Initializes the hash context for the type you requested
- *
- * If the return is nonzero, it failed and there is nothing needing to be
- * destroyed.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_genhmac_init(struct lws_genhmac_ctx *ctx, enum lws_genhmac_types type,
-		 const uint8_t *key, size_t key_len);
-
-/** lws_genhmac_update() - digest len bytes of the buffer starting at in
- *
- * \param ctx: your struct lws_genhmac_ctx
- * \param in: start of the bytes to digest
- * \param len: count of bytes to digest
- *
- * Updates the state of your hash context to reflect digesting len bytes from in
- *
- * If the return is nonzero, it failed and needs destroying.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_genhmac_update(struct lws_genhmac_ctx *ctx, const void *in, size_t len);
-
-/** lws_genhmac_destroy() - copy out the result digest and destroy the ctx
- *
- * \param ctx: your struct lws_genhmac_ctx
- * \param result: NULL, or where to copy the result hash
- *
- * Finalizes the hash and copies out the digest.  Destroys any allocations such
- * that ctx can safely go out of scope after calling this.
- *
- * NULL result is supported so that you can destroy the ctx cleanly on error
- * conditions, where there is no valid result.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genhmac_destroy(struct lws_genhmac_ctx *ctx, void *result);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-genrsa.h b/thirdparty/libwebsockets/include/libwebsockets/lws-genrsa.h
deleted file mode 100644
index 3e427e2927..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-genrsa.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup generic RSA
- * ## Generic RSA related functions
- *
- * Lws provides generic RSA functions that abstract the ones
- * provided by whatever OpenSSL library you are linking against.
- *
- * It lets you use the same code if you build against mbedtls or OpenSSL
- * for example.
- */
-///@{
-
-enum enum_jwk_tok {
-	JWK_KEY_E,
-	JWK_KEY_N,
-	JWK_KEY_D,
-	JWK_KEY_P,
-	JWK_KEY_Q,
-	JWK_KEY_DP,
-	JWK_KEY_DQ,
-	JWK_KEY_QI,
-	JWK_KTY, /* also serves as count of real elements */
-	JWK_KEY,
-};
-
-#define LWS_COUNT_RSA_ELEMENTS JWK_KTY
-
-struct lws_genrsa_ctx {
-#if defined(LWS_WITH_MBEDTLS)
-	mbedtls_rsa_context *ctx;
-#else
-	BIGNUM *bn[LWS_COUNT_RSA_ELEMENTS];
-	RSA *rsa;
-#endif
-};
-
-struct lws_genrsa_element {
-	uint8_t *buf;
-	uint16_t len;
-};
-
-struct lws_genrsa_elements {
-	struct lws_genrsa_element e[LWS_COUNT_RSA_ELEMENTS];
-};
-
-/** lws_jwk_destroy_genrsa_elements() - Free allocations in genrsa_elements
- *
- * \param el: your struct lws_genrsa_elements
- *
- * This is a helper for user code making use of struct lws_genrsa_elements
- * where the elements are allocated on the heap, it frees any non-NULL
- * buf element and sets the buf to NULL.
- *
- * NB: lws_genrsa_public_... apis do not need this as they take care of the key
- * creation and destruction themselves.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_jwk_destroy_genrsa_elements(struct lws_genrsa_elements *el);
-
-/** lws_genrsa_public_decrypt_create() - Create RSA public decrypt context
- *
- * \param ctx: your struct lws_genrsa_ctx
- * \param el: struct prepared with key element data
- *
- * Creates an RSA context with a public key associated with it, formed from
- * the key elements in \p el.
- *
- * Returns 0 for OK or nonzero for error.
- *
- * This and related APIs operate identically with OpenSSL or mbedTLS backends.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genrsa_create(struct lws_genrsa_ctx *ctx, struct lws_genrsa_elements *el);
-
-/** lws_genrsa_new_keypair() - Create new RSA keypair
- *
- * \param context: your struct lws_context (may be used for RNG)
- * \param ctx: your struct lws_genrsa_ctx
- * \param el: struct to get the new key element data allocated into it
- * \param bits: key size, eg, 4096
- *
- * Creates a new RSA context and generates a new keypair into it, with \p bits
- * bits.
- *
- * Returns 0 for OK or nonzero for error.
- *
- * This and related APIs operate identically with OpenSSL or mbedTLS backends.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genrsa_new_keypair(struct lws_context *context, struct lws_genrsa_ctx *ctx,
-		       struct lws_genrsa_elements *el, int bits);
-
-/** lws_genrsa_public_decrypt() - Perform RSA public decryption
- *
- * \param ctx: your struct lws_genrsa_ctx
- * \param in: encrypted input
- * \param in_len: length of encrypted input
- * \param out: decrypted output
- * \param out_max: size of output buffer
- *
- * Performs the decryption.
- *
- * Returns <0 for error, or length of decrypted data.
- *
- * This and related APIs operate identically with OpenSSL or mbedTLS backends.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genrsa_public_decrypt(struct lws_genrsa_ctx *ctx, const uint8_t *in,
-			  size_t in_len, uint8_t *out, size_t out_max);
-
-/** lws_genrsa_public_verify() - Perform RSA public verification
- *
- * \param ctx: your struct lws_genrsa_ctx
- * \param in: unencrypted payload (usually a recomputed hash)
- * \param hash_type: one of LWS_GENHASH_TYPE_
- * \param sig: pointer to the signature we received with the payload
- * \param sig_len: length of the signature we are checking in bytes
- *
- * Returns <0 for error, or 0 if signature matches the payload + key.
- *
- * This and related APIs operate identically with OpenSSL or mbedTLS backends.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genrsa_public_verify(struct lws_genrsa_ctx *ctx, const uint8_t *in,
-			 enum lws_genhash_types hash_type,
-			 const uint8_t *sig, size_t sig_len);
-
-/** lws_genrsa_public_sign() - Create RSA signature
- *
- * \param ctx: your struct lws_genrsa_ctx
- * \param in: precomputed hash
- * \param hash_type: one of LWS_GENHASH_TYPE_
- * \param sig: pointer to buffer to take signature
- * \param sig_len: length of the buffer (must be >= length of key N)
- *
- * Returns <0 for error, or 0 for success.
- *
- * This and related APIs operate identically with OpenSSL or mbedTLS backends.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genrsa_public_sign(struct lws_genrsa_ctx *ctx, const uint8_t *in,
-		       enum lws_genhash_types hash_type, uint8_t *sig,
-		       size_t sig_len);
-
-/** lws_genrsa_public_decrypt_destroy() - Destroy RSA public decrypt context
- *
- * \param ctx: your struct lws_genrsa_ctx
- *
- * Destroys any allocations related to \p ctx.
- *
- * This and related APIs operate identically with OpenSSL or mbedTLS backends.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_genrsa_destroy(struct lws_genrsa_ctx *ctx);
-
-/** lws_genrsa_render_pkey_asn1() - Exports public or private key to ASN1/DER
- *
- * \param ctx: your struct lws_genrsa_ctx
- * \param _private: 0 = public part only, 1 = all parts of the key
- * \param pkey_asn1: pointer to buffer to take the ASN1
- * \param pkey_asn1_len: max size of the pkey_asn1_len
- *
- * Returns length of pkey_asn1 written, or -1 for error.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_genrsa_render_pkey_asn1(struct lws_genrsa_ctx *ctx, int _private,
-			    uint8_t *pkey_asn1, size_t pkey_asn1_len);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-http.h b/thirdparty/libwebsockets/include/libwebsockets/lws-http.h
deleted file mode 100644
index eb3d826ebd..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-http.h
+++ /dev/null
@@ -1,685 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/* minimal space for typical headers and CSP stuff */
-
-#define LWS_RECOMMENDED_MIN_HEADER_SPACE 2048
-
-/*! \defgroup http HTTP
-
-    Modules related to handling HTTP
-*/
-//@{
-
-/*! \defgroup httpft HTTP File transfer
- * \ingroup http
-
-    APIs for sending local files in response to HTTP requests
-*/
-//@{
-
-/**
- * lws_get_mimetype() - Determine mimetype to use from filename
- *
- * \param file:		filename
- * \param m:		NULL, or mount context
- *
- * This uses a canned list of known filetypes first, if no match and m is
- * non-NULL, then tries a list of per-mount file suffix to mimtype mappings.
- *
- * Returns either NULL or a pointer to the mimetype matching the file.
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_get_mimetype(const char *file, const struct lws_http_mount *m);
-
-/**
- * lws_serve_http_file() - Send a file back to the client using http
- * \param wsi:		Websocket instance (available from user callback)
- * \param file:		The file to issue over http
- * \param content_type:	The http content type, eg, text/html
- * \param other_headers:	NULL or pointer to header string
- * \param other_headers_len:	length of the other headers if non-NULL
- *
- *	This function is intended to be called from the callback in response
- *	to http requests from the client.  It allows the callback to issue
- *	local files down the http link in a single step.
- *
- *	Returning <0 indicates error and the wsi should be closed.  Returning
- *	>0 indicates the file was completely sent and
- *	lws_http_transaction_completed() called on the wsi (and close if != 0)
- *	==0 indicates the file transfer is started and needs more service later,
- *	the wsi should be left alone.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
-		    const char *other_headers, int other_headers_len);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_serve_http_file_fragment(struct lws *wsi);
-//@}
-
-
-enum http_status {
-	HTTP_STATUS_CONTINUE					= 100,
-
-	HTTP_STATUS_OK						= 200,
-	HTTP_STATUS_NO_CONTENT					= 204,
-	HTTP_STATUS_PARTIAL_CONTENT				= 206,
-
-	HTTP_STATUS_MOVED_PERMANENTLY				= 301,
-	HTTP_STATUS_FOUND					= 302,
-	HTTP_STATUS_SEE_OTHER					= 303,
-	HTTP_STATUS_NOT_MODIFIED				= 304,
-
-	HTTP_STATUS_BAD_REQUEST					= 400,
-	HTTP_STATUS_UNAUTHORIZED,
-	HTTP_STATUS_PAYMENT_REQUIRED,
-	HTTP_STATUS_FORBIDDEN,
-	HTTP_STATUS_NOT_FOUND,
-	HTTP_STATUS_METHOD_NOT_ALLOWED,
-	HTTP_STATUS_NOT_ACCEPTABLE,
-	HTTP_STATUS_PROXY_AUTH_REQUIRED,
-	HTTP_STATUS_REQUEST_TIMEOUT,
-	HTTP_STATUS_CONFLICT,
-	HTTP_STATUS_GONE,
-	HTTP_STATUS_LENGTH_REQUIRED,
-	HTTP_STATUS_PRECONDITION_FAILED,
-	HTTP_STATUS_REQ_ENTITY_TOO_LARGE,
-	HTTP_STATUS_REQ_URI_TOO_LONG,
-	HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE,
-	HTTP_STATUS_REQ_RANGE_NOT_SATISFIABLE,
-	HTTP_STATUS_EXPECTATION_FAILED,
-
-	HTTP_STATUS_INTERNAL_SERVER_ERROR			= 500,
-	HTTP_STATUS_NOT_IMPLEMENTED,
-	HTTP_STATUS_BAD_GATEWAY,
-	HTTP_STATUS_SERVICE_UNAVAILABLE,
-	HTTP_STATUS_GATEWAY_TIMEOUT,
-	HTTP_STATUS_HTTP_VERSION_NOT_SUPPORTED,
-};
-/*! \defgroup html-chunked-substitution HTML Chunked Substitution
- * \ingroup http
- *
- * ##HTML chunked Substitution
- *
- * APIs for receiving chunks of text, replacing a set of variable names via
- * a callback, and then prepending and appending HTML chunked encoding
- * headers.
- */
-//@{
-
-struct lws_process_html_args {
-	char *p; /**< pointer to the buffer containing the data */
-	int len; /**< length of the original data at p */
-	int max_len; /**< maximum length we can grow the data to */
-	int final; /**< set if this is the last chunk of the file */
-	int chunked; /**< 0 == unchunked, 1 == produce chunk headers
-			(incompatible with HTTP/2) */
-};
-
-typedef const char *(*lws_process_html_state_cb)(void *data, int index);
-
-struct lws_process_html_state {
-	char *start; /**< pointer to start of match */
-	char swallow[16]; /**< matched character buffer */
-	int pos; /**< position in match */
-	void *data; /**< opaque pointer */
-	const char * const *vars; /**< list of variable names */
-	int count_vars; /**< count of variable names */
-
-	lws_process_html_state_cb replace;
-		/**< called on match to perform substitution */
-};
-
-/*! lws_chunked_html_process() - generic chunked substitution
- * \param args: buffer to process using chunked encoding
- * \param s: current processing state
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_chunked_html_process(struct lws_process_html_args *args,
-			 struct lws_process_html_state *s);
-//@}
-
-/** \defgroup HTTP-headers-read HTTP headers: read
- * \ingroup http
- *
- * ##HTTP header releated functions
- *
- *  In lws the client http headers are temporarily stored in a pool, only for the
- *  duration of the http part of the handshake.  It's because in most cases,
- *  the header content is ignored for the whole rest of the connection lifetime
- *  and would then just be taking up space needlessly.
- *
- *  During LWS_CALLBACK_HTTP when the URI path is delivered is the last time
- *  the http headers are still allocated, you can use these apis then to
- *  look at and copy out interesting header content (cookies, etc)
- *
- *  Notice that the header total length reported does not include a terminating
- *  '\0', however you must allocate for it when using the _copy apis.  So the
- *  length reported for a header containing "123" is 3, but you must provide
- *  a buffer of length 4 so that "123\0" may be copied into it, or the copy
- *  will fail with a nonzero return code.
- *
- *  In the special case of URL arguments, like ?x=1&y=2, the arguments are
- *  stored in a token named for the method, eg,  WSI_TOKEN_GET_URI if it
- *  was a GET or WSI_TOKEN_POST_URI if POST.  You can check the total
- *  length to confirm the method.
- *
- *  For URL arguments, each argument is stored urldecoded in a "fragment", so
- *  you can use the fragment-aware api lws_hdr_copy_fragment() to access each
- *  argument in turn: the fragments contain urldecoded strings like x=1 or y=2.
- *
- *  As a convenience, lws has an api that will find the fragment with a
- *  given name= part, lws_get_urlarg_by_name().
- */
-///@{
-
-/** struct lws_tokens
- * you need these to look at headers that have been parsed if using the
- * LWS_CALLBACK_FILTER_CONNECTION callback.  If a header from the enum
- * list below is absent, .token = NULL and len = 0.  Otherwise .token
- * points to .len chars containing that header content.
- */
-struct lws_tokens {
-	char *token; /**< pointer to start of the token */
-	int len; /**< length of the token's value */
-};
-
-/* enum lws_token_indexes
- * these have to be kept in sync with lextable.h / minilex.c
- *
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-enum lws_token_indexes {
-	WSI_TOKEN_GET_URI					=  0,
-	WSI_TOKEN_POST_URI					=  1,
-	WSI_TOKEN_OPTIONS_URI					=  2,
-	WSI_TOKEN_HOST						=  3,
-	WSI_TOKEN_CONNECTION					=  4,
-	WSI_TOKEN_UPGRADE					=  5,
-	WSI_TOKEN_ORIGIN					=  6,
-	WSI_TOKEN_DRAFT						=  7,
-	WSI_TOKEN_CHALLENGE					=  8,
-	WSI_TOKEN_EXTENSIONS					=  9,
-	WSI_TOKEN_KEY1						= 10,
-	WSI_TOKEN_KEY2						= 11,
-	WSI_TOKEN_PROTOCOL					= 12,
-	WSI_TOKEN_ACCEPT					= 13,
-	WSI_TOKEN_NONCE						= 14,
-	WSI_TOKEN_HTTP						= 15,
-	WSI_TOKEN_HTTP2_SETTINGS				= 16,
-	WSI_TOKEN_HTTP_ACCEPT					= 17,
-	WSI_TOKEN_HTTP_AC_REQUEST_HEADERS			= 18,
-	WSI_TOKEN_HTTP_IF_MODIFIED_SINCE			= 19,
-	WSI_TOKEN_HTTP_IF_NONE_MATCH				= 20,
-	WSI_TOKEN_HTTP_ACCEPT_ENCODING				= 21,
-	WSI_TOKEN_HTTP_ACCEPT_LANGUAGE				= 22,
-	WSI_TOKEN_HTTP_PRAGMA					= 23,
-	WSI_TOKEN_HTTP_CACHE_CONTROL				= 24,
-	WSI_TOKEN_HTTP_AUTHORIZATION				= 25,
-	WSI_TOKEN_HTTP_COOKIE					= 26,
-	WSI_TOKEN_HTTP_CONTENT_LENGTH				= 27,
-	WSI_TOKEN_HTTP_CONTENT_TYPE				= 28,
-	WSI_TOKEN_HTTP_DATE					= 29,
-	WSI_TOKEN_HTTP_RANGE					= 30,
-	WSI_TOKEN_HTTP_REFERER					= 31,
-	WSI_TOKEN_KEY						= 32,
-	WSI_TOKEN_VERSION					= 33,
-	WSI_TOKEN_SWORIGIN					= 34,
-
-	WSI_TOKEN_HTTP_COLON_AUTHORITY				= 35,
-	WSI_TOKEN_HTTP_COLON_METHOD				= 36,
-	WSI_TOKEN_HTTP_COLON_PATH				= 37,
-	WSI_TOKEN_HTTP_COLON_SCHEME				= 38,
-	WSI_TOKEN_HTTP_COLON_STATUS				= 39,
-
-	WSI_TOKEN_HTTP_ACCEPT_CHARSET				= 40,
-	WSI_TOKEN_HTTP_ACCEPT_RANGES				= 41,
-	WSI_TOKEN_HTTP_ACCESS_CONTROL_ALLOW_ORIGIN		= 42,
-	WSI_TOKEN_HTTP_AGE					= 43,
-	WSI_TOKEN_HTTP_ALLOW					= 44,
-	WSI_TOKEN_HTTP_CONTENT_DISPOSITION			= 45,
-	WSI_TOKEN_HTTP_CONTENT_ENCODING				= 46,
-	WSI_TOKEN_HTTP_CONTENT_LANGUAGE				= 47,
-	WSI_TOKEN_HTTP_CONTENT_LOCATION				= 48,
-	WSI_TOKEN_HTTP_CONTENT_RANGE				= 49,
-	WSI_TOKEN_HTTP_ETAG					= 50,
-	WSI_TOKEN_HTTP_EXPECT					= 51,
-	WSI_TOKEN_HTTP_EXPIRES					= 52,
-	WSI_TOKEN_HTTP_FROM					= 53,
-	WSI_TOKEN_HTTP_IF_MATCH					= 54,
-	WSI_TOKEN_HTTP_IF_RANGE					= 55,
-	WSI_TOKEN_HTTP_IF_UNMODIFIED_SINCE			= 56,
-	WSI_TOKEN_HTTP_LAST_MODIFIED				= 57,
-	WSI_TOKEN_HTTP_LINK					= 58,
-	WSI_TOKEN_HTTP_LOCATION					= 59,
-	WSI_TOKEN_HTTP_MAX_FORWARDS				= 60,
-	WSI_TOKEN_HTTP_PROXY_AUTHENTICATE			= 61,
-	WSI_TOKEN_HTTP_PROXY_AUTHORIZATION			= 62,
-	WSI_TOKEN_HTTP_REFRESH					= 63,
-	WSI_TOKEN_HTTP_RETRY_AFTER				= 64,
-	WSI_TOKEN_HTTP_SERVER					= 65,
-	WSI_TOKEN_HTTP_SET_COOKIE				= 66,
-	WSI_TOKEN_HTTP_STRICT_TRANSPORT_SECURITY		= 67,
-	WSI_TOKEN_HTTP_TRANSFER_ENCODING			= 68,
-	WSI_TOKEN_HTTP_USER_AGENT				= 69,
-	WSI_TOKEN_HTTP_VARY					= 70,
-	WSI_TOKEN_HTTP_VIA					= 71,
-	WSI_TOKEN_HTTP_WWW_AUTHENTICATE				= 72,
-
-	WSI_TOKEN_PATCH_URI					= 73,
-	WSI_TOKEN_PUT_URI					= 74,
-	WSI_TOKEN_DELETE_URI					= 75,
-
-	WSI_TOKEN_HTTP_URI_ARGS					= 76,
-	WSI_TOKEN_PROXY						= 77,
-	WSI_TOKEN_HTTP_X_REAL_IP				= 78,
-	WSI_TOKEN_HTTP1_0					= 79,
-	WSI_TOKEN_X_FORWARDED_FOR				= 80,
-	WSI_TOKEN_CONNECT					= 81,
-	WSI_TOKEN_HEAD_URI					= 82,
-	WSI_TOKEN_TE						= 83,
-	WSI_TOKEN_REPLAY_NONCE					= 84,
-	WSI_TOKEN_COLON_PROTOCOL				= 85,
-	WSI_TOKEN_X_AUTH_TOKEN					= 86,
-
-	/****** add new things just above ---^ ******/
-
-	/* use token storage to stash these internally, not for
-	 * user use */
-
-	_WSI_TOKEN_CLIENT_SENT_PROTOCOLS,
-	_WSI_TOKEN_CLIENT_PEER_ADDRESS,
-	_WSI_TOKEN_CLIENT_URI,
-	_WSI_TOKEN_CLIENT_HOST,
-	_WSI_TOKEN_CLIENT_ORIGIN,
-	_WSI_TOKEN_CLIENT_METHOD,
-	_WSI_TOKEN_CLIENT_IFACE,
-	_WSI_TOKEN_CLIENT_ALPN,
-
-	/* always last real token index*/
-	WSI_TOKEN_COUNT,
-
-	/* parser state additions, no storage associated */
-	WSI_TOKEN_NAME_PART,
-	WSI_TOKEN_SKIPPING,
-	WSI_TOKEN_SKIPPING_SAW_CR,
-	WSI_PARSING_COMPLETE,
-	WSI_INIT_TOKEN_MUXURL,
-};
-
-struct lws_token_limits {
-	unsigned short token_limit[WSI_TOKEN_COUNT]; /**< max chars for this token */
-};
-
-/**
- * lws_token_to_string() - returns a textual representation of a hdr token index
- *
- * \param token: token index
- */
-LWS_VISIBLE LWS_EXTERN const unsigned char *
-lws_token_to_string(enum lws_token_indexes token);
-
-/**
- * lws_hdr_total_length: report length of all fragments of a header totalled up
- *		The returned length does not include the space for a
- *		terminating '\0'
- *
- * \param wsi: websocket connection
- * \param h: which header index we are interested in
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_hdr_total_length(struct lws *wsi, enum lws_token_indexes h);
-
-/**
- * lws_hdr_fragment_length: report length of a single fragment of a header
- *		The returned length does not include the space for a
- *		terminating '\0'
- *
- * \param wsi: websocket connection
- * \param h: which header index we are interested in
- * \param frag_idx: which fragment of h we want to get the length of
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_hdr_fragment_length(struct lws *wsi, enum lws_token_indexes h,
-			int frag_idx);
-
-/**
- * lws_hdr_copy() - copy all fragments of the given header to a buffer
- *		The buffer length len must include space for an additional
- *		terminating '\0', or it will fail returning -1.
- *
- * \param wsi: websocket connection
- * \param dest: destination buffer
- * \param len: length of destination buffer
- * \param h: which header index we are interested in
- *
- * copies the whole, aggregated header, even if it was delivered in
- * several actual headers piece by piece.  Returns -1 or length of the whole
- * header.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_hdr_copy(struct lws *wsi, char *dest, int len, enum lws_token_indexes h);
-
-/**
- * lws_hdr_copy_fragment() - copy a single fragment of the given header to a buffer
- *		The buffer length len must include space for an additional
- *		terminating '\0', or it will fail returning -1.
- *		If the requested fragment index is not present, it fails
- *		returning -1.
- *
- * \param wsi: websocket connection
- * \param dest: destination buffer
- * \param len: length of destination buffer
- * \param h: which header index we are interested in
- * \param frag_idx: which fragment of h we want to copy
- *
- * Normally this is only useful
- * to parse URI arguments like ?x=1&y=2, token index WSI_TOKEN_HTTP_URI_ARGS
- * fragment 0 will contain "x=1" and fragment 1 "y=2"
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_hdr_copy_fragment(struct lws *wsi, char *dest, int len,
-		      enum lws_token_indexes h, int frag_idx);
-
-/**
- * lws_get_urlarg_by_name() - return pointer to arg value if present
- * \param wsi: the connection to check
- * \param name: the arg name, like "token="
- * \param buf: the buffer to receive the urlarg (including the name= part)
- * \param len: the length of the buffer to receive the urlarg
- *
- *     Returns NULL if not found or a pointer inside buf to just after the
- *     name= part.
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_get_urlarg_by_name(struct lws *wsi, const char *name, char *buf, int len);
-///@}
-
-/*! \defgroup HTTP-headers-create HTTP headers: create
- *
- * ## HTTP headers: Create
- *
- * These apis allow you to create HTTP response headers in a way compatible with
- * both HTTP/1.x and HTTP/2.
- *
- * They each append to a buffer taking care about the buffer end, which is
- * passed in as a pointer.  When data is written to the buffer, the current
- * position p is updated accordingly.
- *
- * All of these apis are LWS_WARN_UNUSED_RESULT as they can run out of space
- * and fail with nonzero return.
- */
-///@{
-
-#define LWSAHH_CODE_MASK			((1 << 16) - 1)
-#define LWSAHH_FLAG_NO_SERVER_NAME		(1 << 30)
-
-/**
- * lws_add_http_header_status() - add the HTTP response status code
- *
- * \param wsi: the connection to check
- * \param code: an HTTP code like 200, 404 etc (see enum http_status)
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Adds the initial response code, so should be called first.
- *
- * Code may additionally take OR'd flags:
- *
- *    LWSAHH_FLAG_NO_SERVER_NAME:  don't apply server name header this time
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_add_http_header_status(struct lws *wsi,
-			   unsigned int code, unsigned char **p,
-			   unsigned char *end);
-/**
- * lws_add_http_header_by_name() - append named header and value
- *
- * \param wsi: the connection to check
- * \param name: the hdr name, like "my-header"
- * \param value: the value after the = for this header
- * \param length: the length of the value
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Appends name: value to the headers
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_add_http_header_by_name(struct lws *wsi, const unsigned char *name,
-			    const unsigned char *value, int length,
-			    unsigned char **p, unsigned char *end);
-/**
- * lws_add_http_header_by_token() - append given header and value
- *
- * \param wsi: the connection to check
- * \param token: the token index for the hdr
- * \param value: the value after the = for this header
- * \param length: the length of the value
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Appends name=value to the headers, but is able to take advantage of better
- * HTTP/2 coding mechanisms where possible.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_add_http_header_by_token(struct lws *wsi, enum lws_token_indexes token,
-			     const unsigned char *value, int length,
-			     unsigned char **p, unsigned char *end);
-/**
- * lws_add_http_header_content_length() - append content-length helper
- *
- * \param wsi: the connection to check
- * \param content_length: the content length to use
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Appends content-length: content_length to the headers
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_add_http_header_content_length(struct lws *wsi,
-				   lws_filepos_t content_length,
-				   unsigned char **p, unsigned char *end);
-/**
- * lws_finalize_http_header() - terminate header block
- *
- * \param wsi: the connection to check
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Indicates no more headers will be added
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_finalize_http_header(struct lws *wsi, unsigned char **p,
-			 unsigned char *end);
-
-/**
- * lws_finalize_write_http_header() - Helper finializing and writing http headers
- *
- * \param wsi: the connection to check
- * \param start: pointer to the start of headers in the buffer, eg &buf[LWS_PRE]
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Terminates the headers correctly accoring to the protocol in use (h1 / h2)
- * and writes the headers.  Returns nonzero for error.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_finalize_write_http_header(struct lws *wsi, unsigned char *start,
-			       unsigned char **p, unsigned char *end);
-
-#define LWS_ILLEGAL_HTTP_CONTENT_LEN ((lws_filepos_t)-1ll)
-
-/**
- * lws_add_http_common_headers() - Helper preparing common http headers
- *
- * \param wsi: the connection to check
- * \param code: an HTTP code like 200, 404 etc (see enum http_status)
- * \param content_type: the content type, like "text/html"
- * \param content_len: the content length, in bytes
- * \param p: pointer to current position in buffer pointer
- * \param end: pointer to end of buffer
- *
- * Adds the initial response code, so should be called first.
- *
- * Code may additionally take OR'd flags:
- *
- *    LWSAHH_FLAG_NO_SERVER_NAME:  don't apply server name header this time
- *
- * This helper just calls public apis to simplify adding headers that are
- * commonly needed.  If it doesn't fit your case, or you want to add additional
- * headers just call the public apis directly yourself for what you want.
- *
- * You can miss out the content length header by providing the constant
- * LWS_ILLEGAL_HTTP_CONTENT_LEN for the content_len.
- *
- * It does not call lws_finalize_http_header(), to allow you to add further
- * headers after calling this.  You will need to call that yourself at the end.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_add_http_common_headers(struct lws *wsi, unsigned int code,
-			    const char *content_type, lws_filepos_t content_len,
-			    unsigned char **p, unsigned char *end);
-
-///@}
-
-/*! \defgroup urlendec Urlencode and Urldecode
- * \ingroup http
- *
- * ##HTML chunked Substitution
- *
- * APIs for receiving chunks of text, replacing a set of variable names via
- * a callback, and then prepending and appending HTML chunked encoding
- * headers.
- */
-//@{
-
-/**
- * lws_urlencode() - like strncpy but with urlencoding
- *
- * \param escaped: output buffer
- * \param string: input buffer ('/0' terminated)
- * \param len: output buffer max length
- *
- * Because urlencoding expands the output string, it's not
- * possible to do it in-place, ie, with escaped == string
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_urlencode(char *escaped, const char *string, int len);
-
-/*
- * URLDECODE 1 / 2
- *
- * This simple urldecode only operates until the first '\0' and requires the
- * data to exist all at once
- */
-/**
- * lws_urldecode() - like strncpy but with urldecoding
- *
- * \param string: output buffer
- * \param escaped: input buffer ('\0' terminated)
- * \param len: output buffer max length
- *
- * This is only useful for '\0' terminated strings
- *
- * Since urldecoding only shrinks the output string, it is possible to
- * do it in-place, ie, string == escaped
- *
- * Returns 0 if completed OK or nonzero for urldecode violation (non-hex chars
- * where hex required, etc)
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_urldecode(char *string, const char *escaped, int len);
-///@}
-
-/**
- * lws_return_http_status() - Return simple http status
- * \param wsi:		Websocket instance (available from user callback)
- * \param code:		Status index, eg, 404
- * \param html_body:		User-readable HTML description < 1KB, or NULL
- *
- *	Helper to report HTTP errors back to the client cleanly and
- *	consistently
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_return_http_status(struct lws *wsi, unsigned int code,
-		       const char *html_body);
-
-/**
- * lws_http_redirect() - write http redirect out on wsi
- *
- * \param wsi:	websocket connection
- * \param code:	HTTP response code (eg, 301)
- * \param loc:	where to redirect to
- * \param len:	length of loc
- * \param p:	pointer current position in buffer (updated as we write)
- * \param end:	pointer to end of buffer
- *
- * Returns amount written, or < 0 indicating fatal write failure.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_http_redirect(struct lws *wsi, int code, const unsigned char *loc, int len,
-		  unsigned char **p, unsigned char *end);
-
-/**
- * lws_http_transaction_completed() - wait for new http transaction or close
- * \param wsi:	websocket connection
- *
- *	Returns 1 if the HTTP connection must close now
- *	Returns 0 and resets connection to wait for new HTTP header /
- *	  transaction if possible
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_http_transaction_completed(struct lws *wsi);
-
-/**
- * lws_http_compression_apply() - apply an http compression transform
- *
- * \param wsi: the wsi to apply the compression transform to
- * \param name: NULL, or the name of the compression transform, eg, "deflate"
- * \param p: pointer to pointer to headers buffer
- * \param end: pointer to end of headers buffer
- * \param decomp: 0 = add compressor to wsi, 1 = add decompressor
- *
- * This allows transparent compression of dynamically generated HTTP.  The
- * requested compression (eg, "deflate") is only applied if the client headers
- * indicated it was supported (and it has support in lws), otherwise it's a NOP.
- *
- * If the requested compression method is NULL, then the supported compression
- * formats are tried, and for non-decompression (server) mode the first that's
- * found on the client's accept-encoding header is chosen.
- *
- * NOTE: the compression transform, same as h2 support, relies on the user
- * code using LWS_WRITE_HTTP and then LWS_WRITE_HTTP_FINAL on the last part
- * written.  The internal lws fileserving code already does this.
- *
- * If the library was built without the cmake option
- * LWS_WITH_HTTP_STREAM_COMPRESSION set, then a NOP is provided for this api,
- * allowing user code to build either way and use compression if available.
- */
-LWS_VISIBLE int
-lws_http_compression_apply(struct lws *wsi, const char *name,
-			   unsigned char **p, unsigned char *end, char decomp);
-///@}
-
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-jwk.h b/thirdparty/libwebsockets/include/libwebsockets/lws-jwk.h
deleted file mode 100644
index 2e2eabd73e..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-jwk.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-
-/*! \defgroup jwk JSON Web Keys
- * ## JSON Web Keys API
- *
- * Lws provides an API to parse JSON Web Keys into a struct lws_genrsa_elements.
- *
- * "oct" and "RSA" type keys are supported.  For "oct" keys, they are held in
- * the "e" member of the struct lws_genrsa_elements.
- *
- * Keys elements are allocated on the heap.  You must destroy the allocations
- * in the struct lws_genrsa_elements by calling
- * lws_jwk_destroy_genrsa_elements() when you are finished with it.
- */
-///@{
-
-struct lws_jwk {
-	char keytype[5];		/**< "oct" or "RSA" */
-	struct lws_genrsa_elements el;	/**< OCTet key is in el.e */
-};
-
-/** lws_jwk_import() - Create a JSON Web key from the textual representation
- *
- * \param s: the JWK object to create
- * \param in: a single JWK JSON stanza in utf-8
- * \param len: the length of the JWK JSON stanza in bytes
- *
- * Creates an lws_jwk struct filled with data from the JSON representation.
- * "oct" and "rsa" key types are supported.
- *
- * For "oct" type keys, it is loaded into el.e.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_jwk_import(struct lws_jwk *s, const char *in, size_t len);
-
-/** lws_jwk_destroy() - Destroy a JSON Web key
- *
- * \param s: the JWK object to destroy
- *
- * All allocations in the lws_jwk are destroyed
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_jwk_destroy(struct lws_jwk *s);
-
-/** lws_jwk_export() - Export a JSON Web key to a textual representation
- *
- * \param s: the JWK object to export
- * \param _private: 0 = just export public parts, 1 = export everything
- * \param p: the buffer to write the exported JWK to
- * \param len: the length of the buffer \p p in bytes
- *
- * Returns length of the used part of the buffer if OK, or -1 for error.
- *
- * Serializes the content of the JWK into a char buffer.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_jwk_export(struct lws_jwk *s, int _private, char *p, size_t len);
-
-/** lws_jwk_load() - Import a JSON Web key from a file
- *
- * \param s: the JWK object to load into
- * \param filename: filename to load from
- *
- * Returns 0 for OK or -1 for failure
- */
-LWS_VISIBLE int
-lws_jwk_load(struct lws_jwk *s, const char *filename);
-
-/** lws_jwk_save() - Export a JSON Web key to a file
- *
- * \param s: the JWK object to save from
- * \param filename: filename to save to
- *
- * Returns 0 for OK or -1 for failure
- */
-LWS_VISIBLE int
-lws_jwk_save(struct lws_jwk *s, const char *filename);
-
-/** lws_jwk_rfc7638_fingerprint() - jwk to RFC7638 compliant fingerprint
- *
- * \param s: the JWK object to fingerprint
- * \param digest32: buffer to take 32-byte digest
- *
- * Returns 0 for OK or -1 for failure
- */
-LWS_VISIBLE int
-lws_jwk_rfc7638_fingerprint(struct lws_jwk *s, char *digest32);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-jws.h b/thirdparty/libwebsockets/include/libwebsockets/lws-jws.h
deleted file mode 100644
index 7112fc3dba..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-jws.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup jws JSON Web Signature
- * ## JSON Web Signature API
- *
- * Lws provides an API to check and create RFC7515 JSON Web Signatures
- *
- * SHA256/384/512 HMAC, and RSA 256/384/512 are supported.
- *
- * The API uses your TLS library crypto, but works exactly the same no matter
- * what you TLS backend is.
- */
-///@{
-
-LWS_VISIBLE LWS_EXTERN int
-lws_jws_confirm_sig(const char *in, size_t len, struct lws_jwk *jwk);
-
-/**
- * lws_jws_sign_from_b64() - add b64 sig to b64 hdr + payload
- *
- * \param b64_hdr: protected header encoded in b64, may be NULL
- * \param hdr_len: bytes in b64 coding of protected header
- * \param b64_pay: payload encoded in b64
- * \param pay_len: bytes in b64 coding of payload
- * \param b64_sig: buffer to write the b64 encoded signature into
- * \param sig_len: max bytes we can write at b64_sig
- * \param hash_type: one of LWS_GENHASH_TYPE_SHA[256|384|512]
- * \param jwk: the struct lws_jwk containing the signing key
- *
- * This adds a b64-coded JWS signature of the b64-encoded protected header
- * and b64-encoded payload, at \p b64_sig.  The signature will be as large
- * as the N element of the RSA key when the RSA key is used, eg, 512 bytes for
- * a 4096-bit key, and then b64-encoding on top.
- *
- * In some special cases, there is only payload to sign and no header, in that
- * case \p b64_hdr may be NULL, and only the payload will be hashed before
- * signing.
- *
- * Returns the length of the encoded signature written to \p b64_sig, or -1.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_jws_sign_from_b64(const char *b64_hdr, size_t hdr_len, const char *b64_pay,
-		      size_t pay_len, char *b64_sig, size_t sig_len,
-		      enum lws_genhash_types hash_type, struct lws_jwk *jwk);
-
-/**
- * lws_jws_create_packet() - add b64 sig to b64 hdr + payload
- *
- * \param jwk: the struct lws_jwk containing the signing key
- * \param payload: unencoded payload JSON
- * \param len: length of unencoded payload JSON
- * \param nonce: Nonse string to include in protected header
- * \param out: buffer to take signed packet
- * \param out_len: size of \p out buffer
- *
- * This creates a "flattened" JWS packet from the jwk and the plaintext
- * payload, and signs it.  The packet is written into \p out.
- *
- * This does the whole packet assembly and signing, calling through to
- * lws_jws_sign_from_b64() as part of the process.
- *
- * Returns the length written to \p out, or -1.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_jws_create_packet(struct lws_jwk *jwk, const char *payload, size_t len,
-		      const char *nonce, char *out, size_t out_len);
-
-/**
- * lws_jws_base64_enc() - encode input data into b64url data
- *
- * \param in: the incoming plaintext
- * \param in_len: the length of the incoming plaintext in bytes
- * \param out: the buffer to store the b64url encoded data to
- * \param out_max: the length of \p out in bytes
- *
- * Returns either -1 if problems, or the number of bytes written to \p out.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_jws_base64_enc(const char *in, size_t in_len, char *out, size_t out_max);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-lejp.h b/thirdparty/libwebsockets/include/libwebsockets/lws-lejp.h
deleted file mode 100644
index f3f7e59a64..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-lejp.h
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup lejp JSON parser
- * ##JSON parsing related functions
- * \ingroup lwsapi
- *
- * LEJP is an extremely lightweight JSON stream parser included in lws.
- */
-//@{
-struct lejp_ctx;
-
-#if !defined(LWS_ARRAY_SIZE)
-#define LWS_ARRAY_SIZE(_x) (sizeof(_x) / sizeof(_x[0]))
-#endif
-#define LEJP_FLAG_WS_KEEP 64
-#define LEJP_FLAG_WS_COMMENTLINE 32
-
-enum lejp_states {
-	LEJP_IDLE = 0,
-	LEJP_MEMBERS = 1,
-	LEJP_M_P = 2,
-	LEJP_MP_STRING = LEJP_FLAG_WS_KEEP | 3,
-	LEJP_MP_STRING_ESC = LEJP_FLAG_WS_KEEP | 4,
-	LEJP_MP_STRING_ESC_U1 = LEJP_FLAG_WS_KEEP | 5,
-	LEJP_MP_STRING_ESC_U2 = LEJP_FLAG_WS_KEEP | 6,
-	LEJP_MP_STRING_ESC_U3 = LEJP_FLAG_WS_KEEP | 7,
-	LEJP_MP_STRING_ESC_U4 = LEJP_FLAG_WS_KEEP | 8,
-	LEJP_MP_DELIM = 9,
-	LEJP_MP_VALUE = 10,
-	LEJP_MP_VALUE_NUM_INT = LEJP_FLAG_WS_KEEP | 11,
-	LEJP_MP_VALUE_NUM_EXP = LEJP_FLAG_WS_KEEP | 12,
-	LEJP_MP_VALUE_TOK = LEJP_FLAG_WS_KEEP | 13,
-	LEJP_MP_COMMA_OR_END = 14,
-	LEJP_MP_ARRAY_END = 15,
-};
-
-enum lejp_reasons {
-	LEJP_CONTINUE = -1,
-	LEJP_REJECT_IDLE_NO_BRACE = -2,
-	LEJP_REJECT_MEMBERS_NO_CLOSE = -3,
-	LEJP_REJECT_MP_NO_OPEN_QUOTE = -4,
-	LEJP_REJECT_MP_STRING_UNDERRUN = -5,
-	LEJP_REJECT_MP_ILLEGAL_CTRL = -6,
-	LEJP_REJECT_MP_STRING_ESC_ILLEGAL_ESC = -7,
-	LEJP_REJECT_ILLEGAL_HEX = -8,
-	LEJP_REJECT_MP_DELIM_MISSING_COLON = -9,
-	LEJP_REJECT_MP_DELIM_BAD_VALUE_START = -10,
-	LEJP_REJECT_MP_VAL_NUM_INT_NO_FRAC = -11,
-	LEJP_REJECT_MP_VAL_NUM_FORMAT = -12,
-	LEJP_REJECT_MP_VAL_NUM_EXP_BAD_EXP = -13,
-	LEJP_REJECT_MP_VAL_TOK_UNKNOWN = -14,
-	LEJP_REJECT_MP_C_OR_E_UNDERF = -15,
-	LEJP_REJECT_MP_C_OR_E_NOTARRAY = -16,
-	LEJP_REJECT_MP_ARRAY_END_MISSING = -17,
-	LEJP_REJECT_STACK_OVERFLOW = -18,
-	LEJP_REJECT_MP_DELIM_ISTACK = -19,
-	LEJP_REJECT_NUM_TOO_LONG = -20,
-	LEJP_REJECT_MP_C_OR_E_NEITHER = -21,
-	LEJP_REJECT_UNKNOWN = -22,
-	LEJP_REJECT_CALLBACK = -23
-};
-
-#define LEJP_FLAG_CB_IS_VALUE 64
-
-enum lejp_callbacks {
-	LEJPCB_CONSTRUCTED	= 0,
-	LEJPCB_DESTRUCTED	= 1,
-
-	LEJPCB_START		= 2,
-	LEJPCB_COMPLETE		= 3,
-	LEJPCB_FAILED		= 4,
-
-	LEJPCB_PAIR_NAME	= 5,
-
-	LEJPCB_VAL_TRUE		= LEJP_FLAG_CB_IS_VALUE | 6,
-	LEJPCB_VAL_FALSE	= LEJP_FLAG_CB_IS_VALUE | 7,
-	LEJPCB_VAL_NULL		= LEJP_FLAG_CB_IS_VALUE | 8,
-	LEJPCB_VAL_NUM_INT	= LEJP_FLAG_CB_IS_VALUE | 9,
-	LEJPCB_VAL_NUM_FLOAT	= LEJP_FLAG_CB_IS_VALUE | 10,
-	LEJPCB_VAL_STR_START	= 11, /* notice handle separately */
-	LEJPCB_VAL_STR_CHUNK	= LEJP_FLAG_CB_IS_VALUE | 12,
-	LEJPCB_VAL_STR_END	= LEJP_FLAG_CB_IS_VALUE | 13,
-
-	LEJPCB_ARRAY_START	= 14,
-	LEJPCB_ARRAY_END	= 15,
-
-	LEJPCB_OBJECT_START	= 16,
-	LEJPCB_OBJECT_END	= 17
-};
-
-/**
- * _lejp_callback() - User parser actions
- * \param ctx:	LEJP context
- * \param reason:	Callback reason
- *
- *	Your user callback is associated with the context at construction time,
- *	and receives calls as the parsing progresses.
- *
- *	All of the callbacks may be ignored and just return 0.
- *
- *	The reasons it might get called, found in @reason, are:
- *
- *  LEJPCB_CONSTRUCTED:  The context was just constructed... you might want to
- *		perform one-time allocation for the life of the context.
- *
- *  LEJPCB_DESTRUCTED:	The context is being destructed... if you made any
- *		allocations at construction-time, you can free them now
- *
- *  LEJPCB_START:	Parsing is beginning at the first byte of input
- *
- *  LEJPCB_COMPLETE:	Parsing has completed successfully.  You'll get a 0 or
- *			positive return code from lejp_parse indicating the
- *			amount of unused bytes left in the input buffer
- *
- *  LEJPCB_FAILED:	Parsing failed.  You'll get a negative error code
- *  			returned from lejp_parse
- *
- *  LEJPCB_PAIR_NAME:	When a "name":"value" pair has had the name parsed,
- *			this callback occurs.  You can find the new name at
- *			the end of ctx->path[]
- *
- *  LEJPCB_VAL_TRUE:	The "true" value appeared
- *
- *  LEJPCB_VAL_FALSE:	The "false" value appeared
- *
- *  LEJPCB_VAL_NULL:	The "null" value appeared
- *
- *  LEJPCB_VAL_NUM_INT:	A string representing an integer is in ctx->buf
- *
- *  LEJPCB_VAL_NUM_FLOAT: A string representing a float is in ctx->buf
- *
- *  LEJPCB_VAL_STR_START: We are starting to parse a string, no data yet
- *
- *  LEJPCB_VAL_STR_CHUNK: We parsed LEJP_STRING_CHUNK -1 bytes of string data in
- *			ctx->buf, which is as much as we can buffer, so we are
- *			spilling it.  If all your strings are less than
- *			LEJP_STRING_CHUNK - 1 bytes, you will never see this
- *			callback.
- *
- *  LEJPCB_VAL_STR_END:	String parsing has completed, the last chunk of the
- *			string is in ctx->buf.
- *
- *  LEJPCB_ARRAY_START:	An array started
- *
- *  LEJPCB_ARRAY_END:	An array ended
- *
- *  LEJPCB_OBJECT_START: An object started
- *
- *  LEJPCB_OBJECT_END:	An object ended
- */
-LWS_EXTERN signed char _lejp_callback(struct lejp_ctx *ctx, char reason);
-
-typedef signed char (*lejp_callback)(struct lejp_ctx *ctx, char reason);
-
-#ifndef LEJP_MAX_DEPTH
-#define LEJP_MAX_DEPTH 12
-#endif
-#ifndef LEJP_MAX_INDEX_DEPTH
-#define LEJP_MAX_INDEX_DEPTH 5
-#endif
-#ifndef LEJP_MAX_PATH
-#define LEJP_MAX_PATH 128
-#endif
-#ifndef LEJP_STRING_CHUNK
-/* must be >= 30 to assemble floats */
-#define LEJP_STRING_CHUNK 254
-#endif
-
-enum num_flags {
-	LEJP_SEEN_MINUS = (1 << 0),
-	LEJP_SEEN_POINT = (1 << 1),
-	LEJP_SEEN_POST_POINT = (1 << 2),
-	LEJP_SEEN_EXP = (1 << 3)
-};
-
-struct _lejp_stack {
-	char s; /* lejp_state stack*/
-	char p;	/* path length */
-	char i; /* index array length */
-	char b; /* user bitfield */
-};
-
-struct lejp_ctx {
-
-	/* sorted by type for most compact alignment
-	 *
-	 * pointers
-	 */
-
-	signed char (*callback)(struct lejp_ctx *ctx, char reason);
-	void *user;
-	const char * const *paths;
-
-	/* arrays */
-
-	struct _lejp_stack st[LEJP_MAX_DEPTH];
-	uint16_t i[LEJP_MAX_INDEX_DEPTH]; /* index array */
-	uint16_t wild[LEJP_MAX_INDEX_DEPTH]; /* index array */
-	char path[LEJP_MAX_PATH];
-	char buf[LEJP_STRING_CHUNK + 1];
-
-	/* int */
-
-	uint32_t line;
-
-	/* short */
-
-	uint16_t uni;
-
-	/* char */
-
-	uint8_t npos;
-	uint8_t dcount;
-	uint8_t f;
-	uint8_t sp; /* stack head */
-	uint8_t ipos; /* index stack depth */
-	uint8_t ppos;
-	uint8_t count_paths;
-	uint8_t path_match;
-	uint8_t path_match_len;
-	uint8_t wildcount;
-};
-
-LWS_VISIBLE LWS_EXTERN void
-lejp_construct(struct lejp_ctx *ctx,
-	       signed char (*callback)(struct lejp_ctx *ctx, char reason),
-	       void *user, const char * const *paths, unsigned char paths_count);
-
-LWS_VISIBLE LWS_EXTERN void
-lejp_destruct(struct lejp_ctx *ctx);
-
-LWS_VISIBLE LWS_EXTERN int
-lejp_parse(struct lejp_ctx *ctx, const unsigned char *json, int len);
-
-LWS_VISIBLE LWS_EXTERN void
-lejp_change_callback(struct lejp_ctx *ctx,
-		     signed char (*callback)(struct lejp_ctx *ctx, char reason));
-
-LWS_VISIBLE LWS_EXTERN int
-lejp_get_wildcard(struct lejp_ctx *ctx, int wildcard, char *dest, int len);
-//@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-logs.h b/thirdparty/libwebsockets/include/libwebsockets/lws-logs.h
deleted file mode 100644
index 9317dcc70c..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-logs.h
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup log Logging
- *
- * ##Logging
- *
- * Lws provides flexible and filterable logging facilities, which can be
- * used inside lws and in user code.
- *
- * Log categories may be individually filtered bitwise, and directed to built-in
- * sinks for syslog-compatible logging, or a user-defined function.
- */
-///@{
-
-enum lws_log_levels {
-	LLL_ERR		= 1 << 0,
-	LLL_WARN	= 1 << 1,
-	LLL_NOTICE	= 1 << 2,
-	LLL_INFO	= 1 << 3,
-	LLL_DEBUG	= 1 << 4,
-	LLL_PARSER	= 1 << 5,
-	LLL_HEADER	= 1 << 6,
-	LLL_EXT		= 1 << 7,
-	LLL_CLIENT	= 1 << 8,
-	LLL_LATENCY	= 1 << 9,
-	LLL_USER	= 1 << 10,
-	LLL_THREAD	= 1 << 11,
-
-	LLL_COUNT	= 12 /* set to count of valid flags */
-};
-
-LWS_VISIBLE LWS_EXTERN void _lws_log(int filter, const char *format, ...) LWS_FORMAT(2);
-LWS_VISIBLE LWS_EXTERN void _lws_logv(int filter, const char *format, va_list vl);
-/**
- * lwsl_timestamp: generate logging timestamp string
- *
- * \param level:	logging level
- * \param p:		char * buffer to take timestamp
- * \param len:	length of p
- *
- * returns length written in p
- */
-LWS_VISIBLE LWS_EXTERN int
-lwsl_timestamp(int level, char *p, int len);
-
-/* these guys are unconditionally included */
-
-#define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
-#define lwsl_user(...) _lws_log(LLL_USER, __VA_ARGS__)
-
-#if !defined(LWS_WITH_NO_LOGS)
-/* notice and warn are usually included by being compiled in */
-#define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
-#define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
-#endif
-/*
- *  weaker logging can be deselected by telling CMake to build in RELEASE mode
- *  that gets rid of the overhead of checking while keeping _warn and _err
- *  active
- */
-
-#ifdef _DEBUG
-#if defined(LWS_WITH_NO_LOGS)
-/* notice, warn and log are always compiled in */
-#define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
-#define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
-#endif
-#define lwsl_info(...) _lws_log(LLL_INFO, __VA_ARGS__)
-#define lwsl_debug(...) _lws_log(LLL_DEBUG, __VA_ARGS__)
-#define lwsl_parser(...) _lws_log(LLL_PARSER, __VA_ARGS__)
-#define lwsl_header(...)  _lws_log(LLL_HEADER, __VA_ARGS__)
-#define lwsl_ext(...)  _lws_log(LLL_EXT, __VA_ARGS__)
-#define lwsl_client(...) _lws_log(LLL_CLIENT, __VA_ARGS__)
-#define lwsl_latency(...) _lws_log(LLL_LATENCY, __VA_ARGS__)
-#define lwsl_thread(...) _lws_log(LLL_THREAD, __VA_ARGS__)
-
-#else /* no debug */
-#if defined(LWS_WITH_NO_LOGS)
-#define lwsl_warn(...) do {} while(0)
-#define lwsl_notice(...) do {} while(0)
-#endif
-#define lwsl_info(...) do {} while(0)
-#define lwsl_debug(...) do {} while(0)
-#define lwsl_parser(...) do {} while(0)
-#define lwsl_header(...) do {} while(0)
-#define lwsl_ext(...) do {} while(0)
-#define lwsl_client(...) do {} while(0)
-#define lwsl_latency(...) do {} while(0)
-#define lwsl_thread(...) do {} while(0)
-
-#endif
-
-#define lwsl_hexdump_err(...) lwsl_hexdump_level(LLL_ERR, __VA_ARGS__)
-#define lwsl_hexdump_warn(...) lwsl_hexdump_level(LLL_WARN, __VA_ARGS__)
-#define lwsl_hexdump_notice(...) lwsl_hexdump_level(LLL_NOTICE, __VA_ARGS__)
-#define lwsl_hexdump_info(...) lwsl_hexdump_level(LLL_INFO, __VA_ARGS__)
-#define lwsl_hexdump_debug(...) lwsl_hexdump_level(LLL_DEBUG, __VA_ARGS__)
-
-/**
- * lwsl_hexdump_level() - helper to hexdump a buffer at a selected debug level
- *
- * \param level: one of LLL_ constants
- * \param vbuf: buffer start to dump
- * \param len: length of buffer to dump
- *
- * If \p level is visible, does a nice hexdump -C style dump of \p vbuf for
- * \p len bytes.  This can be extremely convenient while debugging.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsl_hexdump_level(int level, const void *vbuf, size_t len);
-
-/**
- * lwsl_hexdump() - helper to hexdump a buffer (DEBUG builds only)
- *
- * \param buf: buffer start to dump
- * \param len: length of buffer to dump
- *
- * Calls through to lwsl_hexdump_level(LLL_DEBUG, ... for compatability.
- * It's better to use lwsl_hexdump_level(level, ... directly so you can control
- * the visibility.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsl_hexdump(const void *buf, size_t len);
-
-/**
- * lws_is_be() - returns nonzero if the platform is Big Endian
- */
-static LWS_INLINE int lws_is_be(void) {
-	const int probe = ~0xff;
-
-	return *(const char *)&probe;
-}
-
-/**
- * lws_set_log_level() - Set the logging bitfield
- * \param level:	OR together the LLL_ debug contexts you want output from
- * \param log_emit_function:	NULL to leave it as it is, or a user-supplied
- *			function to perform log string emission instead of
- *			the default stderr one.
- *
- *	log level defaults to "err", "warn" and "notice" contexts enabled and
- *	emission on stderr.  If stderr is a tty (according to isatty()) then
- *	the output is coloured according to the log level using ANSI escapes.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_set_log_level(int level,
-		  void (*log_emit_function)(int level, const char *line));
-
-/**
- * lwsl_emit_syslog() - helper log emit function writes to system log
- *
- * \param level: one of LLL_ log level indexes
- * \param line: log string
- *
- * You use this by passing the function pointer to lws_set_log_level(), to set
- * it as the log emit function, it is not called directly.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsl_emit_syslog(int level, const char *line);
-
-/**
- * lwsl_emit_stderr() - helper log emit function writes to stderr
- *
- * \param level: one of LLL_ log level indexes
- * \param line: log string
- *
- * You use this by passing the function pointer to lws_set_log_level(), to set
- * it as the log emit function, it is not called directly.
- *
- * It prepends a system timestamp like [2018/11/13 07:41:57:3989]
- *
- * If stderr is a tty, then ansi colour codes are added.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsl_emit_stderr(int level, const char *line);
-
-/**
- * lwsl_emit_stderr_notimestamp() - helper log emit function writes to stderr
- *
- * \param level: one of LLL_ log level indexes
- * \param line: log string
- *
- * You use this by passing the function pointer to lws_set_log_level(), to set
- * it as the log emit function, it is not called directly.
- *
- * If stderr is a tty, then ansi colour codes are added.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsl_emit_stderr_notimestamp(int level, const char *line);
-
-/**
- * lwsl_visible() - returns true if the log level should be printed
- *
- * \param level: one of LLL_ log level indexes
- *
- * This is useful if you have to do work to generate the log content, you
- * can skip the work if the log level used to print it is not actually
- * enabled at runtime.
- */
-LWS_VISIBLE LWS_EXTERN int
-lwsl_visible(int level);
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-lwsac.h b/thirdparty/libwebsockets/include/libwebsockets/lws-lwsac.h
deleted file mode 100644
index 1f914b66a6..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-lwsac.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * libwebsockets - lws alloc chunk
- *
- * Copyright (C) 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup log lwsac
- *
- * ##Allocated Chunks
- *
- * If you know you will be allocating a large, unknown number of same or
- * differently sized objects, it's certainly possible to do it with libc
- * malloc.  However the allocation cost in time and memory overhead can
- * add up, and deallocation means walking the structure of every object and
- * freeing them in turn.
- *
- * lwsac (LWS Allocated Chunks) allocates chunks intended to be larger
- * than your objects (4000 bytes by default) which you linearly allocate from
- * using lwsac_use().
- *
- * If your next request won't fit in the current chunk, a new chunk is added
- * to the chain of chunks and the allocaton done from there.  If the request
- * is larger than the chunk size, an oversize chunk is created to satisfy it.
- *
- * When you are finished with the allocations, you call lwsac_free() and
- * free all the *chunks*.  So you may have thousands of objects in the chunks,
- * but they are all destroyed with the chunks without having to deallocate them
- * one by one pointlessly.
- */
-///@{
-
-struct lwsac;
-typedef unsigned char * lwsac_cached_file_t;
-
-
-#define lws_list_ptr_container(P,T,M) ((T *)((char *)(P) - offsetof(T, M)))
-
-/*
- * linked-list helper that's commonly useful to manage lists of things
- * allocated using lwsac.
- *
- * These lists point to their corresponding "next" member in the target, NOT
- * the original containing struct.  To get the containing struct, you must use
- * lws_list_ptr_container() to convert.
- *
- * It's like that because it means we no longer have to have the next pointer
- * at the start of the struct, and we can have the same struct on multiple
- * linked-lists with everything held in the struct itself.
- */
-typedef void * lws_list_ptr;
-
-/*
- * optional sorting callback called by lws_list_ptr_insert() to sort the right
- * things inside the opqaue struct being sorted / inserted on the list.
- */
-typedef int (*lws_list_ptr_sort_func_t)(lws_list_ptr a, lws_list_ptr b);
-
-#define lws_list_ptr_advance(_lp) _lp = *((void **)_lp)
-
-/* sort may be NULL if you don't care about order */
-LWS_VISIBLE LWS_EXTERN void
-lws_list_ptr_insert(lws_list_ptr *phead, lws_list_ptr *add,
-		    lws_list_ptr_sort_func_t sort);
-
-
-/**
- * lwsac_use - allocate / use some memory from a lwsac
- *
- * \param head: pointer to the lwsac list object
- * \param ensure: the number of bytes we want to use
- * \param chunk_size: 0, or the size of the chunk to (over)allocate if
- *			what we want won't fit in the current tail chunk.  If
- *			0, the default value of 4000 is used. If ensure is
- *			larger, it is used instead.
- *
- * This also serves to init the lwsac if *head is NULL.  Basically it does
- * whatever is necessary to return you a pointer to ensure bytes of memory
- * reserved for the caller.
- *
- * Returns NULL if OOM.
- */
-LWS_VISIBLE LWS_EXTERN void *
-lwsac_use(struct lwsac **head, size_t ensure, size_t chunk_size);
-
-/**
- * lwsac_free - deallocate all chunks in the lwsac and set head NULL
- *
- * \param head: pointer to the lwsac list object
- *
- * This deallocates all chunks in the lwsac, then sets *head to NULL.  All
- * lwsac_use() pointers are invalidated in one hit without individual frees.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsac_free(struct lwsac **head);
-
-/*
- * Optional helpers useful for where consumers may need to defer destruction
- * until all consumers are finished with the lwsac
- */
-
-/**
- * lwsac_detach() - destroy an lwsac unless somebody else is referencing it
- *
- * \param head: pointer to the lwsac list object
- *
- * The creator of the lwsac can all this instead of lwsac_free() when it itself
- * has finished with the lwsac, but other code may be consuming it.
- *
- * If there are no other references, the lwsac is destroyed, *head is set to
- * NULL and that's the end; however if something else has called
- * lwsac_reference() on the lwsac, it simply returns.  When lws_unreference()
- * is called and no references are left, it will be destroyed then.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsac_detach(struct lwsac **head);
-
-/**
- * lwsac_reference() - increase the lwsac reference count
- *
- * \param head: pointer to the lwsac list object
- *
- * Increment the reference count on the lwsac to defer destruction.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsac_reference(struct lwsac *head);
-
-/**
- * lwsac_reference() - increase the lwsac reference count
- *
- * \param head: pointer to the lwsac list object
- *
- * Decrement the reference count on the lwsac... if it reached 0 on a detached
- * lwsac then the lwsac is immediately destroyed and *head set to NULL.
- */
-LWS_VISIBLE LWS_EXTERN void
-lwsac_unreference(struct lwsac **head);
-
-
-/* helpers to keep a file cached in memory */
-
-LWS_VISIBLE LWS_EXTERN void
-lwsac_use_cached_file_start(lwsac_cached_file_t cache);
-
-LWS_VISIBLE LWS_EXTERN void
-lwsac_use_cached_file_end(lwsac_cached_file_t *cache);
-
-LWS_VISIBLE LWS_EXTERN void
-lwsac_use_cached_file_detach(lwsac_cached_file_t *cache);
-
-LWS_VISIBLE LWS_EXTERN int
-lwsac_cached_file(const char *filepath, lwsac_cached_file_t *cache,
-		  size_t *len);
-
-/* more advanced helpers */
-
-LWS_VISIBLE LWS_EXTERN size_t
-lwsac_sizeof(void);
-
-LWS_VISIBLE LWS_EXTERN size_t
-lwsac_get_tail_pos(struct lwsac *lac);
-
-LWS_VISIBLE LWS_EXTERN struct lwsac *
-lwsac_get_next(struct lwsac *lac);
-
-LWS_VISIBLE LWS_EXTERN size_t
-lwsac_align(size_t length);
-
-LWS_VISIBLE LWS_EXTERN void
-lwsac_info(struct lwsac *head);
-
-LWS_VISIBLE LWS_EXTERN uint64_t
-lwsac_total_alloc(struct lwsac *head);
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-misc.h b/thirdparty/libwebsockets/include/libwebsockets/lws-misc.h
deleted file mode 100644
index 02fe432d5b..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-misc.h
+++ /dev/null
@@ -1,836 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup misc Miscellaneous APIs
-* ##Miscellaneous APIs
-*
-* Various APIs outside of other categories
-*/
-///@{
-
-/**
- * lws_start_foreach_ll(): linkedlist iterator helper start
- *
- * \param type: type of iteration, eg, struct xyz *
- * \param it: iterator var name to create
- * \param start: start of list
- *
- * This helper creates an iterator and starts a while (it) {
- * loop.  The iterator runs through the linked list starting at start and
- * ends when it gets a NULL.
- * The while loop should be terminated using lws_start_foreach_ll().
- */
-#define lws_start_foreach_ll(type, it, start)\
-{ \
-	type it = start; \
-	while (it) {
-
-/**
- * lws_end_foreach_ll(): linkedlist iterator helper end
- *
- * \param it: same iterator var name given when starting
- * \param nxt: member name in the iterator pointing to next list element
- *
- * This helper is the partner for lws_start_foreach_ll() that ends the
- * while loop.
- */
-
-#define lws_end_foreach_ll(it, nxt) \
-		it = it->nxt; \
-	} \
-}
-
-/**
- * lws_start_foreach_ll_safe(): linkedlist iterator helper start safe against delete
- *
- * \param type: type of iteration, eg, struct xyz *
- * \param it: iterator var name to create
- * \param start: start of list
- * \param nxt: member name in the iterator pointing to next list element
- *
- * This helper creates an iterator and starts a while (it) {
- * loop.  The iterator runs through the linked list starting at start and
- * ends when it gets a NULL.
- * The while loop should be terminated using lws_end_foreach_ll_safe().
- * Performs storage of next increment for situations where iterator can become invalidated
- * during iteration.
- */
-#define lws_start_foreach_ll_safe(type, it, start, nxt)\
-{ \
-	type it = start; \
-	while (it) { \
-		type next_##it = it->nxt;
-
-/**
- * lws_end_foreach_ll_safe(): linkedlist iterator helper end (pre increment storage)
- *
- * \param it: same iterator var name given when starting
- *
- * This helper is the partner for lws_start_foreach_ll_safe() that ends the
- * while loop. It uses the precreated next_ variable already stored during
- * start.
- */
-
-#define lws_end_foreach_ll_safe(it) \
-		it = next_##it; \
-	} \
-}
-
-/**
- * lws_start_foreach_llp(): linkedlist pointer iterator helper start
- *
- * \param type: type of iteration, eg, struct xyz **
- * \param it: iterator var name to create
- * \param start: start of list
- *
- * This helper creates an iterator and starts a while (it) {
- * loop.  The iterator runs through the linked list starting at the
- * address of start and ends when it gets a NULL.
- * The while loop should be terminated using lws_start_foreach_llp().
- *
- * This helper variant iterates using a pointer to the previous linked-list
- * element.  That allows you to easily delete list members by rewriting the
- * previous pointer to the element's next pointer.
- */
-#define lws_start_foreach_llp(type, it, start)\
-{ \
-	type it = &(start); \
-	while (*(it)) {
-
-#define lws_start_foreach_llp_safe(type, it, start, nxt)\
-{ \
-	type it = &(start); \
-	type next; \
-	while (*(it)) { \
-		next = &((*(it))->nxt); \
-
-/**
- * lws_end_foreach_llp(): linkedlist pointer iterator helper end
- *
- * \param it: same iterator var name given when starting
- * \param nxt: member name in the iterator pointing to next list element
- *
- * This helper is the partner for lws_start_foreach_llp() that ends the
- * while loop.
- */
-
-#define lws_end_foreach_llp(it, nxt) \
-		it = &(*(it))->nxt; \
-	} \
-}
-
-#define lws_end_foreach_llp_safe(it) \
-		it = next; \
-	} \
-}
-
-#define lws_ll_fwd_insert(\
-	___new_object,	/* pointer to new object */ \
-	___m_list,	/* member for next list object ptr */ \
-	___list_head	/* list head */ \
-		) {\
-		___new_object->___m_list = ___list_head; \
-		___list_head = ___new_object; \
-	}
-
-#define lws_ll_fwd_remove(\
-	___type,	/* type of listed object */ \
-	___m_list,	/* member for next list object ptr */ \
-	___target,	/* object to remove from list */ \
-	___list_head	/* list head */ \
-	) { \
-                lws_start_foreach_llp(___type **, ___ppss, ___list_head) { \
-                        if (*___ppss == ___target) { \
-                                *___ppss = ___target->___m_list; \
-                                break; \
-                        } \
-                } lws_end_foreach_llp(___ppss, ___m_list); \
-	}
-
-/*
- * doubly linked-list
- */
-
-struct lws_dll { /* abstract */
-	struct lws_dll *prev;
-	struct lws_dll *next;
-};
-
-/*
- * these all point to the composed list objects... you have to use the
- * lws_container_of() helper to recover the start of the containing struct
- */
-
-LWS_VISIBLE LWS_EXTERN void
-lws_dll_add_front(struct lws_dll *d, struct lws_dll *phead);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_dll_remove(struct lws_dll *d);
-
-struct lws_dll_lws { /* typed as struct lws * */
-	struct lws_dll_lws *prev;
-	struct lws_dll_lws *next;
-};
-
-#define lws_dll_is_null(___dll) (!(___dll)->prev && !(___dll)->next)
-
-static LWS_INLINE void
-lws_dll_lws_add_front(struct lws_dll_lws *_a, struct lws_dll_lws *_head)
-{
-	lws_dll_add_front((struct lws_dll *)_a, (struct lws_dll *)_head);
-}
-
-static LWS_INLINE void
-lws_dll_lws_remove(struct lws_dll_lws *_a)
-{
-	lws_dll_remove((struct lws_dll *)_a);
-}
-
-/*
- * these are safe against the current container object getting deleted,
- * since the hold his next in a temp and go to that next.  ___tmp is
- * the temp.
- */
-
-#define lws_start_foreach_dll_safe(___type, ___it, ___tmp, ___start) \
-{ \
-	___type ___it = ___start; \
-	while (___it) { \
-		___type ___tmp = (___it)->next;
-
-#define lws_end_foreach_dll_safe(___it, ___tmp) \
-		___it = ___tmp; \
-	} \
-}
-
-#define lws_start_foreach_dll(___type, ___it, ___start) \
-{ \
-	___type ___it = ___start; \
-	while (___it) {
-
-#define lws_end_foreach_dll(___it) \
-		___it = (___it)->next; \
-	} \
-}
-
-struct lws_buflist;
-
-/**
- * lws_buflist_append_segment(): add buffer to buflist at head
- *
- * \param head: list head
- * \param buf: buffer to stash
- * \param len: length of buffer to stash
- *
- * Returns -1 on OOM, 1 if this was the first segment on the list, and 0 if
- * it was a subsequent segment.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_buflist_append_segment(struct lws_buflist **head, const uint8_t *buf,
-			   size_t len);
-/**
- * lws_buflist_next_segment_len(): number of bytes left in current segment
- *
- * \param head: list head
- * \param buf: if non-NULL, *buf is written with the address of the start of
- *		the remaining data in the segment
- *
- * Returns the number of bytes left in the current segment.  0 indicates
- * that the buflist is empty (there are no segments on the buflist).
- */
-LWS_VISIBLE LWS_EXTERN size_t
-lws_buflist_next_segment_len(struct lws_buflist **head, uint8_t **buf);
-/**
- * lws_buflist_use_segment(): remove len bytes from the current segment
- *
- * \param head: list head
- * \param len: number of bytes to mark as used
- *
- * If len is less than the remaining length of the current segment, the position
- * in the current segment is simply advanced and it returns.
- *
- * If len uses up the remaining length of the current segment, then the segment
- * is deleted and the list head moves to the next segment if any.
- *
- * Returns the number of bytes left in the current segment.  0 indicates
- * that the buflist is empty (there are no segments on the buflist).
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_buflist_use_segment(struct lws_buflist **head, size_t len);
-/**
- * lws_buflist_destroy_all_segments(): free all segments on the list
- *
- * \param head: list head
- *
- * This frees everything on the list unconditionally.  *head is always
- * NULL after this.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_buflist_destroy_all_segments(struct lws_buflist **head);
-
-void
-lws_buflist_describe(struct lws_buflist **head, void *id);
-
-/**
- * lws_ptr_diff(): helper to report distance between pointers as an int
- *
- * \param head: the pointer with the larger address
- * \param tail: the pointer with the smaller address
- *
- * This helper gives you an int representing the number of bytes further
- * forward the first pointer is compared to the second pointer.
- */
-#define lws_ptr_diff(head, tail) \
-			((int)((char *)(head) - (char *)(tail)))
-
-/**
- * lws_snprintf(): snprintf that truncates the returned length too
- *
- * \param str: destination buffer
- * \param size: bytes left in destination buffer
- * \param format: format string
- * \param ...: args for format
- *
- * This lets you correctly truncate buffers by concatenating lengths, if you
- * reach the limit the reported length doesn't exceed the limit.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_snprintf(char *str, size_t size, const char *format, ...) LWS_FORMAT(3);
-
-/**
- * lws_strncpy(): strncpy that guarantees NUL on truncated copy
- *
- * \param dest: destination buffer
- * \param src: source buffer
- * \param size: bytes left in destination buffer
- *
- * This lets you correctly truncate buffers by concatenating lengths, if you
- * reach the limit the reported length doesn't exceed the limit.
- */
-LWS_VISIBLE LWS_EXTERN char *
-lws_strncpy(char *dest, const char *src, size_t size);
-
-/**
- * lws_get_random(): fill a buffer with platform random data
- *
- * \param context: the lws context
- * \param buf: buffer to fill
- * \param len: how much to fill
- *
- * This is intended to be called from the LWS_CALLBACK_RECEIVE callback if
- * it's interested to see if the frame it's dealing with was sent in binary
- * mode.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_get_random(struct lws_context *context, void *buf, int len);
-/**
- * lws_daemonize(): make current process run in the background
- *
- * \param _lock_path: the filepath to write the lock file
- *
- * Spawn lws as a background process, taking care of various things
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_daemonize(const char *_lock_path);
-/**
- * lws_get_library_version(): return string describing the version of lws
- *
- * On unix, also includes the git describe
- */
-LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
-lws_get_library_version(void);
-
-/**
- * lws_wsi_user() - get the user data associated with the connection
- * \param wsi: lws connection
- *
- * Not normally needed since it's passed into the callback
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_wsi_user(struct lws *wsi);
-
-/**
- * lws_wsi_set_user() - set the user data associated with the client connection
- * \param wsi: lws connection
- * \param user: user data
- *
- * By default lws allocates this and it's not legal to externally set it
- * yourself.  However client connections may have it set externally when the
- * connection is created... if so, this api can be used to modify it at
- * runtime additionally.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_set_wsi_user(struct lws *wsi, void *user);
-
-/**
- * lws_parse_uri:	cut up prot:/ads:port/path into pieces
- *			Notice it does so by dropping '\0' into input string
- *			and the leading / on the path is consequently lost
- *
- * \param p:			incoming uri string.. will get written to
- * \param prot:		result pointer for protocol part (https://)
- * \param ads:		result pointer for address part
- * \param port:		result pointer for port part
- * \param path:		result pointer for path part
- *
- * You may also refer to unix socket addresses, using a '+' at the start of
- * the address.  In this case, the address should end with ':', which is
- * treated as the separator between the address and path (the normal separator
- * '/' is a valid part of the socket path).  Eg,
- *
- * http://+/var/run/mysocket:/my/path
- *
- * If the first character after the + is '@', it's interpreted by lws client
- * processing as meaning to use linux abstract namespace sockets, the @ is
- * replaced with a '\0' before use.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
-	      const char **path);
-/**
- * lws_cmdline_option():	simple commandline parser
- *
- * \param argc:		count of argument strings
- * \param argv:		argument strings
- * \param val:		string to find
- *
- * Returns NULL if the string \p val is not found in the arguments.
- *
- * If it is found, then it returns a pointer to the next character after \p val.
- * So if \p val is "-d", then for the commandlines "myapp -d15" and
- * "myapp -d 15", in both cases the return will point to the "15".
- *
- * In the case there is no argument, like "myapp -d", the return will
- * either point to the '\\0' at the end of -d, or to the start of the
- * next argument, ie, will be non-NULL.
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_cmdline_option(int argc, const char **argv, const char *val);
-
-/**
- * lws_now_secs(): return seconds since 1970-1-1
- */
-LWS_VISIBLE LWS_EXTERN unsigned long
-lws_now_secs(void);
-
-/**
- * lws_now_usecs(): return useconds since 1970-1-1
- */
-LWS_VISIBLE LWS_EXTERN lws_usec_t
-lws_now_usecs(void);
-
-/**
- * lws_compare_time_t(): return relationship between two time_t
- *
- * \param context: struct lws_context
- * \param t1: time_t 1
- * \param t2: time_t 2
- *
- * returns <0 if t2 > t1; >0 if t1 > t2; or == 0 if t1 == t2.
- *
- * This is aware of clock discontiguities that may have affected either t1 or
- * t2 and adapts the comparison for them.
- *
- * For the discontiguity detection to work, you must avoid any arithmetic on
- * the times being compared.  For example to have a timeout that triggers
- * 15s from when it was set, store the time it was set and compare like
- * `if (lws_compare_time_t(context, now, set_time) > 15)`
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_compare_time_t(struct lws_context *context, time_t t1, time_t t2);
-
-/**
- * lws_get_context - Allow getting lws_context from a Websocket connection
- * instance
- *
- * With this function, users can access context in the callback function.
- * Otherwise users may have to declare context as a global variable.
- *
- * \param wsi:	Websocket connection instance
- */
-LWS_VISIBLE LWS_EXTERN struct lws_context * LWS_WARN_UNUSED_RESULT
-lws_get_context(const struct lws *wsi);
-
-/**
- * lws_get_vhost_listen_port - Find out the port number a vhost is listening on
- *
- * In the case you passed 0 for the port number at context creation time, you
- * can discover the port number that was actually chosen for the vhost using
- * this api.
- *
- * \param vhost:	Vhost to get listen port from
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_get_vhost_listen_port(struct lws_vhost *vhost);
-
-/**
- * lws_get_count_threads(): how many service threads the context uses
- *
- * \param context: the lws context
- *
- * By default this is always 1, if you asked for more than lws can handle it
- * will clip the number of threads.  So you can use this to find out how many
- * threads are actually in use.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_get_count_threads(struct lws_context *context);
-
-/**
- * lws_get_parent() - get parent wsi or NULL
- * \param wsi: lws connection
- *
- * Specialized wsi like cgi stdin/out/err are associated to a parent wsi,
- * this allows you to get their parent.
- */
-LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
-lws_get_parent(const struct lws *wsi);
-
-/**
- * lws_get_child() - get child wsi or NULL
- * \param wsi: lws connection
- *
- * Allows you to find a related wsi from the parent wsi.
- */
-LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
-lws_get_child(const struct lws *wsi);
-
-/**
- * lws_get_effective_uid_gid() - find out eventual uid and gid while still root
- *
- * \param context: lws context
- * \param uid: pointer to uid result
- * \param gid: pointer to gid result
- *
- * This helper allows you to find out what the uid and gid for the process will
- * be set to after the privileges are dropped, beforehand.  So while still root,
- * eg in LWS_CALLBACK_PROTOCOL_INIT, you can arrange things like cache dir
- * and subdir creation / permissions down /var/cache dynamically.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_get_effective_uid_gid(struct lws_context *context, int *uid, int *gid);
-
-/**
- * lws_get_udp() - get wsi's udp struct
- *
- * \param wsi: lws connection
- *
- * Returns NULL or pointer to the wsi's UDP-specific information
- */
-LWS_VISIBLE LWS_EXTERN const struct lws_udp * LWS_WARN_UNUSED_RESULT
-lws_get_udp(const struct lws *wsi);
-
-LWS_VISIBLE LWS_EXTERN void *
-lws_get_opaque_parent_data(const struct lws *wsi);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_set_opaque_parent_data(struct lws *wsi, void *data);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_get_child_pending_on_writable(const struct lws *wsi);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_clear_child_pending_on_writable(struct lws *wsi);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_get_close_length(struct lws *wsi);
-
-LWS_VISIBLE LWS_EXTERN unsigned char *
-lws_get_close_payload(struct lws *wsi);
-
-/**
- * lws_get_network_wsi() - Returns wsi that has the tcp connection for this wsi
- *
- * \param wsi: wsi you have
- *
- * Returns wsi that has the tcp connection (which may be the incoming wsi)
- *
- * HTTP/1 connections will always return the incoming wsi
- * HTTP/2 connections may return a different wsi that has the tcp connection
- */
-LWS_VISIBLE LWS_EXTERN
-struct lws *lws_get_network_wsi(struct lws *wsi);
-
-/**
- * lws_set_allocator() - custom allocator support
- *
- * \param realloc
- *
- * Allows you to replace the allocator (and deallocator) used by lws
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_set_allocator(void *(*realloc)(void *ptr, size_t size, const char *reason));
-
-enum {
-	/*
-	 * Flags for enable and disable rxflow with reason bitmap and with
-	 * backwards-compatible single bool
-	 */
-	LWS_RXFLOW_REASON_USER_BOOL		= (1 << 0),
-	LWS_RXFLOW_REASON_HTTP_RXBUFFER		= (1 << 6),
-	LWS_RXFLOW_REASON_H2_PPS_PENDING	= (1 << 7),
-
-	LWS_RXFLOW_REASON_APPLIES		= (1 << 14),
-	LWS_RXFLOW_REASON_APPLIES_ENABLE_BIT	= (1 << 13),
-	LWS_RXFLOW_REASON_APPLIES_ENABLE	= LWS_RXFLOW_REASON_APPLIES |
-						  LWS_RXFLOW_REASON_APPLIES_ENABLE_BIT,
-	LWS_RXFLOW_REASON_APPLIES_DISABLE	= LWS_RXFLOW_REASON_APPLIES,
-	LWS_RXFLOW_REASON_FLAG_PROCESS_NOW	= (1 << 12),
-
-};
-
-/**
- * lws_rx_flow_control() - Enable and disable socket servicing for
- *				received packets.
- *
- * If the output side of a server process becomes choked, this allows flow
- * control for the input side.
- *
- * \param wsi:	Websocket connection instance to get callback for
- * \param enable:	0 = disable read servicing for this connection, 1 = enable
- *
- * If you need more than one additive reason for rxflow control, you can give
- * iLWS_RXFLOW_REASON_APPLIES_ENABLE or _DISABLE together with one or more of
- * b5..b0 set to idicate which bits to enable or disable.  If any bits are
- * enabled, rx on the connection is suppressed.
- *
- * LWS_RXFLOW_REASON_FLAG_PROCESS_NOW  flag may also be given to force any change
- * in rxflowbstatus to benapplied immediately, this should be used when you are
- * changing a wsi flow control state from outside a callback on that wsi.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_rx_flow_control(struct lws *wsi, int enable);
-
-/**
- * lws_rx_flow_allow_all_protocol() - Allow all connections with this protocol to receive
- *
- * When the user server code realizes it can accept more input, it can
- * call this to have the RX flow restriction removed from all connections using
- * the given protocol.
- * \param context:	lws_context
- * \param protocol:	all connections using this protocol will be allowed to receive
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_rx_flow_allow_all_protocol(const struct lws_context *context,
-			       const struct lws_protocols *protocol);
-
-/**
- * lws_remaining_packet_payload() - Bytes to come before "overall"
- *					      rx fragment is complete
- * \param wsi:		Websocket instance (available from user callback)
- *
- * This tracks how many bytes are left in the current ws fragment, according
- * to the ws length given in the fragment header.
- *
- * If the message was in a single fragment, and there is no compression, this
- * is the same as "how much data is left to read for this message".
- *
- * However, if the message is being sent in multiple fragments, this will
- * reflect the unread amount of the current **fragment**, not the message.  With
- * ws, it is legal to not know the length of the message before it completes.
- *
- * Additionally if the message is sent via the negotiated permessage-deflate
- * extension, this number only tells the amount of **compressed** data left to
- * be read, since that is the only information available at the ws layer.
- */
-LWS_VISIBLE LWS_EXTERN size_t
-lws_remaining_packet_payload(struct lws *wsi);
-
-
-
-/**
- * lws_is_ssl() - Find out if connection is using SSL
- * \param wsi:	websocket connection to check
- *
- *	Returns 0 if the connection is not using SSL, 1 if using SSL and
- *	using verified cert, and 2 if using SSL but the cert was not
- *	checked (appears for client wsi told to skip check on connection)
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_is_ssl(struct lws *wsi);
-/**
- * lws_is_cgi() - find out if this wsi is running a cgi process
- * \param wsi: lws connection
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_is_cgi(struct lws *wsi);
-
-/**
- * lws_open() - platform-specific wrapper for open that prepares the fd
- *
- * \param file: the filepath to open
- * \param oflag: option flags
- * \param mode: optional mode of any created file
- *
- * This is a wrapper around platform open() that sets options on the fd
- * according to lws policy.  Currently that is FD_CLOEXEC to stop the opened
- * fd being available to any child process forked by user code.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_open(const char *__file, int __oflag, ...);
-
-struct lws_wifi_scan { /* generic wlan scan item */
-	struct lws_wifi_scan *next;
-	char ssid[32];
-	int32_t rssi; /* divide by .count to get db */
-	uint8_t bssid[6];
-	uint8_t count;
-	uint8_t channel;
-	uint8_t authmode;
-};
-
-#if defined(LWS_WITH_TLS) && !defined(LWS_WITH_MBEDTLS)
-/**
- * lws_get_ssl() - Return wsi's SSL context structure
- * \param wsi:	websocket connection
- *
- * Returns pointer to the SSL library's context structure
- */
-LWS_VISIBLE LWS_EXTERN SSL*
-lws_get_ssl(struct lws *wsi);
-#endif
-
-/** \defgroup smtp SMTP related functions
- * ##SMTP related functions
- * \ingroup lwsapi
- *
- * These apis let you communicate with a local SMTP server to send email from
- * lws.  It handles all the SMTP sequencing and protocol actions.
- *
- * Your system should have postfix, sendmail or another MTA listening on port
- * 25 and able to send email using the "mail" commandline app.  Usually distro
- * MTAs are configured for this by default.
- *
- * It runs via its own libuv events if initialized (which requires giving it
- * a libuv loop to attach to).
- *
- * It operates using three callbacks, on_next() queries if there is a new email
- * to send, on_get_body() asks for the body of the email, and on_sent() is
- * called after the email is successfully sent.
- *
- * To use it
- *
- *  - create an lws_email struct
- *
- *  - initialize data, loop, the email_* strings, max_content_size and
- *    the callbacks
- *
- *  - call lws_email_init()
- *
- *  When you have at least one email to send, call lws_email_check() to
- *  schedule starting to send it.
- */
-//@{
-#ifdef LWS_WITH_SMTP
-
-/** enum lwsgs_smtp_states - where we are in SMTP protocol sequence */
-enum lwsgs_smtp_states {
-	LGSSMTP_IDLE, /**< awaiting new email */
-	LGSSMTP_CONNECTING, /**< opening tcp connection to MTA */
-	LGSSMTP_CONNECTED, /**< tcp connection to MTA is connected */
-	LGSSMTP_SENT_HELO, /**< sent the HELO */
-	LGSSMTP_SENT_FROM, /**< sent FROM */
-	LGSSMTP_SENT_TO, /**< sent TO */
-	LGSSMTP_SENT_DATA, /**< sent DATA request */
-	LGSSMTP_SENT_BODY, /**< sent the email body */
-	LGSSMTP_SENT_QUIT, /**< sent the session quit */
-};
-
-/** struct lws_email - abstract context for performing SMTP operations */
-struct lws_email {
-	void *data;
-	/**< opaque pointer set by user code and available to the callbacks */
-	uv_loop_t *loop;
-	/**< the libuv loop we will work on */
-
-	char email_smtp_ip[32]; /**< Fill before init, eg, "127.0.0.1" */
-	char email_helo[32];	/**< Fill before init, eg, "myserver.com" */
-	char email_from[100];	/**< Fill before init or on_next */
-	char email_to[100];	/**< Fill before init or on_next */
-
-	unsigned int max_content_size;
-	/**< largest possible email body size */
-
-	/* Fill all the callbacks before init */
-
-	int (*on_next)(struct lws_email *email);
-	/**< (Fill in before calling lws_email_init)
-	 * called when idle, 0 = another email to send, nonzero is idle.
-	 * If you return 0, all of the email_* char arrays must be set
-	 * to something useful. */
-	int (*on_sent)(struct lws_email *email);
-	/**< (Fill in before calling lws_email_init)
-	 * called when transfer of the email to the SMTP server was
-	 * successful, your callback would remove the current email
-	 * from its queue */
-	int (*on_get_body)(struct lws_email *email, char *buf, int len);
-	/**< (Fill in before calling lws_email_init)
-	 * called when the body part of the queued email is about to be
-	 * sent to the SMTP server. */
-
-
-	/* private things */
-	uv_timer_t timeout_email; /**< private */
-	enum lwsgs_smtp_states estate; /**< private */
-	uv_connect_t email_connect_req; /**< private */
-	uv_tcp_t email_client; /**< private */
-	time_t email_connect_started; /**< private */
-	char email_buf[256]; /**< private */
-	char *content; /**< private */
-};
-
-/**
- * lws_email_init() - Initialize a struct lws_email
- *
- * \param email: struct lws_email to init
- * \param loop: libuv loop to use
- * \param max_content: max email content size
- *
- * Prepares a struct lws_email for use ending SMTP
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_email_init(struct lws_email *email, uv_loop_t *loop, int max_content);
-
-/**
- * lws_email_check() - Request check for new email
- *
- * \param email: struct lws_email context to check
- *
- * Schedules a check for new emails in 1s... call this when you have queued an
- * email for send.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_email_check(struct lws_email *email);
-/**
- * lws_email_destroy() - stop using the struct lws_email
- *
- * \param email: the struct lws_email context
- *
- * Stop sending email using email and free allocations
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_email_destroy(struct lws_email *email);
-
-#endif
-//@}
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-network-helper.h b/thirdparty/libwebsockets/include/libwebsockets/lws-network-helper.h
deleted file mode 100644
index 94ee8d9a5d..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-network-helper.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup net Network related helper APIs
- * ##Network related helper APIs
- *
- * These wrap miscellaneous useful network-related functions
- */
-///@{
-
-/**
- * lws_canonical_hostname() - returns this host's hostname
- *
- * This is typically used by client code to fill in the host parameter
- * when making a client connection.  You can only call it after the context
- * has been created.
- *
- * \param context:	Websocket context
- */
-LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
-lws_canonical_hostname(struct lws_context *context);
-
-/**
- * lws_get_peer_addresses() - Get client address information
- * \param wsi:	Local struct lws associated with
- * \param fd:		Connection socket descriptor
- * \param name:	Buffer to take client address name
- * \param name_len:	Length of client address name buffer
- * \param rip:	Buffer to take client address IP dotted quad
- * \param rip_len:	Length of client address IP buffer
- *
- *	This function fills in name and rip with the name and IP of
- *	the client connected with socket descriptor fd.  Names may be
- *	truncated if there is not enough room.  If either cannot be
- *	determined, they will be returned as valid zero-length strings.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_get_peer_addresses(struct lws *wsi, lws_sockfd_type fd, char *name,
-		       int name_len, char *rip, int rip_len);
-
-/**
- * lws_get_peer_simple() - Get client address information without RDNS
- *
- * \param wsi:	Local struct lws associated with
- * \param name:	Buffer to take client address name
- * \param namelen:	Length of client address name buffer
- *
- * This provides a 123.123.123.123 type IP address in name from the
- * peer that has connected to wsi
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_get_peer_simple(struct lws *wsi, char *name, int namelen);
-
-#define LWS_ITOSA_USABLE	0
-#define LWS_ITOSA_NOT_EXIST	-1
-#define LWS_ITOSA_NOT_USABLE	-2
-#define LWS_ITOSA_BUSY		-3 /* only returned by lws_socket_bind() on
-					EADDRINUSE */
-
-#if !defined(LWS_WITH_ESP32)
-/**
- * lws_interface_to_sa() - Convert interface name or IP to sockaddr struct
- *
- * \param ipv6:		Allow IPV6 addresses
- * \param ifname:	Interface name or IP
- * \param addr:		struct sockaddr_in * to be written
- * \param addrlen:	Length of addr
- *
- * This converts a textual network interface name to a sockaddr usable by
- * other network functions.
- *
- * If the network interface doesn't exist, it will return LWS_ITOSA_NOT_EXIST.
- *
- * If the network interface is not usable, eg ethernet cable is removed, it
- * may logically exist but not have any IP address.  As such it will return
- * LWS_ITOSA_NOT_USABLE.
- *
- * If the network interface exists and is usable, it will return
- * LWS_ITOSA_USABLE.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
-		    size_t addrlen);
-#endif
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-plugin-generic-sessions.h b/thirdparty/libwebsockets/include/libwebsockets/lws-plugin-generic-sessions.h
deleted file mode 100644
index 7f46f854ec..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-plugin-generic-sessions.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup generic-sessions plugin: generic-sessions
- * \ingroup Protocols-and-Plugins
- *
- * ##Plugin Generic-sessions related
- *
- * generic-sessions plugin provides a reusable, generic session and login /
- * register / forgot password framework including email verification.
- */
-///@{
-
-#define LWSGS_EMAIL_CONTENT_SIZE 16384
-/**< Maximum size of email we might send */
-
-/* SHA-1 binary and hexified versions */
-/** typedef struct lwsgw_hash_bin */
-typedef struct { unsigned char bin[20]; /**< binary representation of hash */} lwsgw_hash_bin;
-/** typedef struct lwsgw_hash */
-typedef struct { char id[41]; /**< ascii hex representation of hash */ } lwsgw_hash;
-
-/** enum lwsgs_auth_bits */
-enum lwsgs_auth_bits {
-	LWSGS_AUTH_LOGGED_IN	= 1, /**< user is logged in as somebody */
-	LWSGS_AUTH_ADMIN	= 2, /**< logged in as the admin user */
-	LWSGS_AUTH_VERIFIED	= 4, /**< user has verified his email */
-	LWSGS_AUTH_FORGOT_FLOW	= 8, /**< just completed "forgot password" */
-};
-
-/** struct lws_session_info - information about user session status */
-struct lws_session_info {
-	char username[32]; /**< username logged in as, or empty string */
-	char email[100]; /**< email address associated with login, or empty string */
-	char ip[72]; /**< ip address session was started from */
-	unsigned int mask; /**< access rights mask associated with session
-	 	 	    * see enum lwsgs_auth_bits */
-	char session[42]; /**< session id string, usable as opaque uid when not logged in */
-};
-
-/** enum lws_gs_event */
-enum lws_gs_event {
-	LWSGSE_CREATED, /**< a new user was created */
-	LWSGSE_DELETED  /**< an existing user was deleted */
-};
-
-/** struct lws_gs_event_args */
-struct lws_gs_event_args {
-	enum lws_gs_event event; /**< which event happened */
-	const char *username; /**< which username the event happened to */
-	const char *email; /**< the email address of that user */
-};
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-protocols-plugins.h b/thirdparty/libwebsockets/include/libwebsockets/lws-protocols-plugins.h
deleted file mode 100644
index b6cc44e27f..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-protocols-plugins.h
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup Protocols-and-Plugins Protocols and Plugins
- * \ingroup lwsapi
- *
- * ##Protocol and protocol plugin -related apis
- *
- * Protocols bind ws protocol names to a custom callback specific to that
- * protocol implementaion.
- *
- * A list of protocols can be passed in at context creation time, but it is
- * also legal to leave that NULL and add the protocols and their callback code
- * using plugins.
- *
- * Plugins are much preferable compared to cut and pasting code into an
- * application each time, since they can be used standalone.
- */
-///@{
-/** struct lws_protocols -	List of protocols and handlers client or server
- *					supports. */
-
-struct lws_protocols {
-	const char *name;
-	/**< Protocol name that must match the one given in the client
-	 * Javascript new WebSocket(url, 'protocol') name. */
-	lws_callback_function *callback;
-	/**< The service callback used for this protocol.  It allows the
-	 * service action for an entire protocol to be encapsulated in
-	 * the protocol-specific callback */
-	size_t per_session_data_size;
-	/**< Each new connection using this protocol gets
-	 * this much memory allocated on connection establishment and
-	 * freed on connection takedown.  A pointer to this per-connection
-	 * allocation is passed into the callback in the 'user' parameter */
-	size_t rx_buffer_size;
-	/**< lws allocates this much space for rx data and informs callback
-	 * when something came.  Due to rx flow control, the callback may not
-	 * be able to consume it all without having to return to the event
-	 * loop.  That is supported in lws.
-	 *
-	 * If .tx_packet_size is 0, this also controls how much may be sent at
-	 * once for backwards compatibility.
-	 */
-	unsigned int id;
-	/**< ignored by lws, but useful to contain user information bound
-	 * to the selected protocol.  For example if this protocol was
-	 * called "myprotocol-v2", you might set id to 2, and the user
-	 * code that acts differently according to the version can do so by
-	 * switch (wsi->protocol->id), user code might use some bits as
-	 * capability flags based on selected protocol version, etc. */
-	void *user; /**< ignored by lws, but user code can pass a pointer
-			here it can later access from the protocol callback */
-	size_t tx_packet_size;
-	/**< 0 indicates restrict send() size to .rx_buffer_size for backwards-
-	 * compatibility.
-	 * If greater than zero, a single send() is restricted to this amount
-	 * and any remainder is buffered by lws and sent afterwards also in
-	 * these size chunks.  Since that is expensive, it's preferable
-	 * to restrict one fragment you are trying to send to match this
-	 * size.
-	 */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility */
-};
-
-/**
- * lws_vhost_name_to_protocol() - get vhost's protocol object from its name
- *
- * \param vh: vhost to search
- * \param name: protocol name
- *
- * Returns NULL or a pointer to the vhost's protocol of the requested name
- */
-LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
-lws_vhost_name_to_protocol(struct lws_vhost *vh, const char *name);
-
-/**
- * lws_get_protocol() - Returns a protocol pointer from a websocket
- *				  connection.
- * \param wsi:	pointer to struct websocket you want to know the protocol of
- *
- *
- *	Some apis can act on all live connections of a given protocol,
- *	this is how you can get a pointer to the active protocol if needed.
- */
-LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
-lws_get_protocol(struct lws *wsi);
-
-/** lws_protocol_get() -  deprecated: use lws_get_protocol */
-LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
-lws_protocol_get(struct lws *wsi) LWS_WARN_DEPRECATED;
-
-/**
- * lws_protocol_vh_priv_zalloc() - Allocate and zero down a protocol's per-vhost
- *				   storage
- * \param vhost:	vhost the instance is related to
- * \param prot:		protocol the instance is related to
- * \param size:		bytes to allocate
- *
- * Protocols often find it useful to allocate a per-vhost struct, this is a
- * helper to be called in the per-vhost init LWS_CALLBACK_PROTOCOL_INIT
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_protocol_vh_priv_zalloc(struct lws_vhost *vhost,
-			    const struct lws_protocols *prot, int size);
-
-/**
- * lws_protocol_vh_priv_get() - retreive a protocol's per-vhost storage
- *
- * \param vhost:	vhost the instance is related to
- * \param prot:		protocol the instance is related to
- *
- * Recover a pointer to the allocated per-vhost storage for the protocol created
- * by lws_protocol_vh_priv_zalloc() earlier
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_protocol_vh_priv_get(struct lws_vhost *vhost,
-			 const struct lws_protocols *prot);
-
-/**
- * lws_adjust_protocol_psds - change a vhost protocol's per session data size
- *
- * \param wsi: a connection with the protocol to change
- * \param new_size: the new size of the per session data size for the protocol
- *
- * Returns user_space for the wsi, after allocating
- *
- * This should not be used except to initalize a vhost protocol's per session
- * data size one time, before any connections are accepted.
- *
- * Sometimes the protocol wraps another protocol and needs to discover and set
- * its per session data size at runtime.
- */
-LWS_VISIBLE LWS_EXTERN void *
-lws_adjust_protocol_psds(struct lws *wsi, size_t new_size);
-
-/**
- * lws_finalize_startup() - drop initial process privileges
- *
- * \param context:	lws context
- *
- * This is called after the end of the vhost protocol initializations, but
- * you may choose to call it earlier
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_finalize_startup(struct lws_context *context);
-
-/**
- * lws_pvo_search() - helper to find a named pvo in a linked-list
- *
- * \param pvo:	the first pvo in the linked-list
- * \param name: the name of the pvo to return if found
- *
- * Returns NULL, or a pointer to the name pvo in the linked-list
- */
-LWS_VISIBLE LWS_EXTERN const struct lws_protocol_vhost_options *
-lws_pvo_search(const struct lws_protocol_vhost_options *pvo, const char *name);
-
-/**
- * lws_pvo_get_str() - retreive a string pvo value
- *
- * \param pvo:	the first pvo in the linked-list
- * \param name: the name of the pvo to return if found
- * \param result: pointer to a const char * to get the result if any
- *
- * Returns 0 if found and *result set, or nonzero if not found
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_pvo_get_str(void *in, const char *name, const char **result);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_protocol_init(struct lws_context *context);
-
-#ifdef LWS_WITH_PLUGINS
-
-/* PLUGINS implies LIBUV */
-
-#define LWS_PLUGIN_API_MAGIC 180
-
-/** struct lws_plugin_capability - how a plugin introduces itself to lws */
-struct lws_plugin_capability {
-	unsigned int api_magic;	/**< caller fills this in, plugin fills rest */
-	const struct lws_protocols *protocols; /**< array of supported protocols provided by plugin */
-	int count_protocols; /**< how many protocols */
-	const struct lws_extension *extensions; /**< array of extensions provided by plugin */
-	int count_extensions; /**< how many extensions */
-};
-
-typedef int (*lws_plugin_init_func)(struct lws_context *,
-				    struct lws_plugin_capability *);
-typedef int (*lws_plugin_destroy_func)(struct lws_context *);
-
-/** struct lws_plugin */
-struct lws_plugin {
-	struct lws_plugin *list; /**< linked list */
-#if (UV_VERSION_MAJOR > 0)
-	uv_lib_t lib; /**< shared library pointer */
-#else
-	void *l; /**< so we can compile on ancient libuv */
-#endif
-	char name[64]; /**< name of the plugin */
-	struct lws_plugin_capability caps; /**< plugin capabilities */
-};
-
-#endif
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-purify.h b/thirdparty/libwebsockets/include/libwebsockets/lws-purify.h
deleted file mode 100644
index 0ae35ce33c..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-purify.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-
-/*! \defgroup pur Sanitize / purify SQL and JSON helpers
- *
- * ##Sanitize / purify SQL and JSON helpers
- *
- * APIs for escaping untrusted JSON and SQL safely before use
- */
-//@{
-
-/**
- * lws_sql_purify() - like strncpy but with escaping for sql quotes
- *
- * \param escaped: output buffer
- * \param string: input buffer ('/0' terminated)
- * \param len: output buffer max length
- *
- * Because escaping expands the output string, it's not
- * possible to do it in-place, ie, with escaped == string
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_sql_purify(char *escaped, const char *string, int len);
-
-/**
- * lws_json_purify() - like strncpy but with escaping for json chars
- *
- * \param escaped: output buffer
- * \param string: input buffer ('/0' terminated)
- * \param len: output buffer max length
- *
- * Because escaping expands the output string, it's not
- * possible to do it in-place, ie, with escaped == string
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_json_purify(char *escaped, const char *string, int len);
-
-/**
- * lws_filename_purify_inplace() - replace scary filename chars with underscore
- *
- * \param filename: filename to be purified
- *
- * Replace scary characters in the filename (it should not be a path)
- * with underscore, so it's safe to use.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_filename_purify_inplace(char *filename);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
-			int len);
-LWS_VISIBLE LWS_EXTERN int
-lws_plat_write_file(const char *filename, void *buf, int len);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_plat_read_file(const char *filename, void *buf, int len);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_plat_recommended_rsa_bits(void);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-ring.h b/thirdparty/libwebsockets/include/libwebsockets/lws-ring.h
deleted file mode 100644
index 9a5ec2e10b..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-ring.h
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup lws_ring LWS Ringbuffer APIs
- * ##lws_ring: generic ringbuffer struct
- *
- * Provides an abstract ringbuffer api supporting one head and one or an
- * unlimited number of tails.
- *
- * All of the members are opaque and manipulated by lws_ring_...() apis.
- *
- * The lws_ring and its buffer is allocated at runtime on the heap, using
- *
- *  - lws_ring_create()
- *  - lws_ring_destroy()
- *
- * It may contain any type, the size of the "element" stored in the ring
- * buffer and the number of elements is given at creation time.
- *
- * When you create the ringbuffer, you can optionally provide an element
- * destroy callback that frees any allocations inside the element.  This is then
- * automatically called for elements with no tail behind them, ie, elements
- * which don't have any pending consumer are auto-freed.
- *
- * Whole elements may be inserted into the ringbuffer and removed from it, using
- *
- *  - lws_ring_insert()
- *  - lws_ring_consume()
- *
- * You can find out how many whole elements are free or waiting using
- *
- *  - lws_ring_get_count_free_elements()
- *  - lws_ring_get_count_waiting_elements()
- *
- * In addition there are special purpose optional byte-centric apis
- *
- *  - lws_ring_next_linear_insert_range()
- *  - lws_ring_bump_head()
- *
- *  which let you, eg, read() directly into the ringbuffer without needing
- *  an intermediate bounce buffer.
- *
- *  The accessors understand that the ring wraps, and optimizes insertion and
- *  consumption into one or two memcpy()s depending on if the head or tail
- *  wraps.
- *
- *  lws_ring only supports a single head, but optionally multiple tails with
- *  an API to inform it when the "oldest" tail has moved on.  You can give
- *  NULL where-ever an api asks for a tail pointer, and it will use an internal
- *  single tail pointer for convenience.
- *
- *  The "oldest tail", which is the only tail if you give it NULL instead of
- *  some other tail, is used to track which elements in the ringbuffer are
- *  still unread by anyone.
- *
- *   - lws_ring_update_oldest_tail()
- */
-///@{
-struct lws_ring;
-
-/**
- * lws_ring_create(): create a new ringbuffer
- *
- * \param element_len: the size in bytes of one element in the ringbuffer
- * \param count: the number of elements the ringbuffer can contain
- * \param destroy_element: NULL, or callback to be called for each element
- *			   that is removed from the ringbuffer due to the
- *			   oldest tail moving beyond it
- *
- * Creates the ringbuffer and allocates the storage.  Returns the new
- * lws_ring *, or NULL if the allocation failed.
- *
- * If non-NULL, destroy_element will get called back for every element that is
- * retired from the ringbuffer after the oldest tail has gone past it, and for
- * any element still left in the ringbuffer when it is destroyed.  It replaces
- * all other element destruction code in your user code.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_ring *
-lws_ring_create(size_t element_len, size_t count,
-		void (*destroy_element)(void *element));
-
-/**
- * lws_ring_destroy():  destroy a previously created ringbuffer
- *
- * \param ring: the struct lws_ring to destroy
- *
- * Destroys the ringbuffer allocation and the struct lws_ring itself.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_ring_destroy(struct lws_ring *ring);
-
-/**
- * lws_ring_get_count_free_elements():  return how many elements can fit
- *				      in the free space
- *
- * \param ring: the struct lws_ring to report on
- *
- * Returns how much room is left in the ringbuffer for whole element insertion.
- */
-LWS_VISIBLE LWS_EXTERN size_t
-lws_ring_get_count_free_elements(struct lws_ring *ring);
-
-/**
- * lws_ring_get_count_waiting_elements():  return how many elements can be consumed
- *
- * \param ring: the struct lws_ring to report on
- * \param tail: a pointer to the tail struct to use, or NULL for single tail
- *
- * Returns how many elements are waiting to be consumed from the perspective
- * of the tail pointer given.
- */
-LWS_VISIBLE LWS_EXTERN size_t
-lws_ring_get_count_waiting_elements(struct lws_ring *ring, uint32_t *tail);
-
-/**
- * lws_ring_insert():  attempt to insert up to max_count elements from src
- *
- * \param ring: the struct lws_ring to report on
- * \param src: the array of elements to be inserted
- * \param max_count: the number of available elements at src
- *
- * Attempts to insert as many of the elements at src as possible, up to the
- * maximum max_count.  Returns the number of elements actually inserted.
- */
-LWS_VISIBLE LWS_EXTERN size_t
-lws_ring_insert(struct lws_ring *ring, const void *src, size_t max_count);
-
-/**
- * lws_ring_consume():  attempt to copy out and remove up to max_count elements
- *		        to src
- *
- * \param ring: the struct lws_ring to report on
- * \param tail: a pointer to the tail struct to use, or NULL for single tail
- * \param dest: the array of elements to be inserted. or NULL for no copy
- * \param max_count: the number of available elements at src
- *
- * Attempts to copy out as many waiting elements as possible into dest, from
- * the perspective of the given tail, up to max_count.  If dest is NULL, the
- * copying out is not done but the elements are logically consumed as usual.
- * NULL dest is useful in combination with lws_ring_get_element(), where you
- * can use the element direct from the ringbuffer and then call this with NULL
- * dest to logically consume it.
- *
- * Increments the tail position according to how many elements could be
- * consumed.
- *
- * Returns the number of elements consumed.
- */
-LWS_VISIBLE LWS_EXTERN size_t
-lws_ring_consume(struct lws_ring *ring, uint32_t *tail, void *dest,
-		 size_t max_count);
-
-/**
- * lws_ring_get_element():  get a pointer to the next waiting element for tail
- *
- * \param ring: the struct lws_ring to report on
- * \param tail: a pointer to the tail struct to use, or NULL for single tail
- *
- * Points to the next element that tail would consume, directly in the
- * ringbuffer.  This lets you write() or otherwise use the element without
- * having to copy it out somewhere first.
- *
- * After calling this, you must call lws_ring_consume(ring, &tail, NULL, 1)
- * which will logically consume the element you used up and increment your
- * tail (tail may also be NULL there if you use a single tail).
- *
- * Returns NULL if no waiting element, or a const void * pointing to it.
- */
-LWS_VISIBLE LWS_EXTERN const void *
-lws_ring_get_element(struct lws_ring *ring, uint32_t *tail);
-
-/**
- * lws_ring_update_oldest_tail():  free up elements older than tail for reuse
- *
- * \param ring: the struct lws_ring to report on
- * \param tail: a pointer to the tail struct to use, or NULL for single tail
- *
- * If you are using multiple tails, you must use this API to inform the
- * lws_ring when none of the tails still need elements in the fifo any more,
- * by updating it when the "oldest" tail has moved on.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_ring_update_oldest_tail(struct lws_ring *ring, uint32_t tail);
-
-/**
- * lws_ring_get_oldest_tail():  get current oldest available data index
- *
- * \param ring: the struct lws_ring to report on
- *
- * If you are initializing a new ringbuffer consumer, you can set its tail to
- * this to start it from the oldest ringbuffer entry still available.
- */
-LWS_VISIBLE LWS_EXTERN uint32_t
-lws_ring_get_oldest_tail(struct lws_ring *ring);
-
-/**
- * lws_ring_next_linear_insert_range():  used to write directly into the ring
- *
- * \param ring: the struct lws_ring to report on
- * \param start: pointer to a void * set to the start of the next ringbuffer area
- * \param bytes: pointer to a size_t set to the max length you may use from *start
- *
- * This provides a low-level, bytewise access directly into the ringbuffer
- * allowing direct insertion of data without having to use a bounce buffer.
- *
- * The api reports the position and length of the next linear range that can
- * be written in the ringbuffer, ie, up to the point it would wrap, and sets
- * *start and *bytes accordingly.  You can then, eg, directly read() into
- * *start for up to *bytes, and use lws_ring_bump_head() to update the lws_ring
- * with what you have done.
- *
- * Returns nonzero if no insertion is currently possible.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_ring_next_linear_insert_range(struct lws_ring *ring, void **start,
-				  size_t *bytes);
-
-/**
- * lws_ring_bump_head():  used to write directly into the ring
- *
- * \param ring: the struct lws_ring to operate on
- * \param bytes: the number of bytes you inserted at the current head
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_ring_bump_head(struct lws_ring *ring, size_t bytes);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_ring_dump(struct lws_ring *ring, uint32_t *tail);
-
-/*
- * This is a helper that combines the common pattern of needing to consume
- * some ringbuffer elements, move the consumer tail on, and check if that
- * has moved any ringbuffer elements out of scope, because it was the last
- * consumer that had not already consumed them.
- *
- * Elements that go out of scope because the oldest tail is now after them
- * get garbage-collected by calling the destroy_element callback on them
- * defined when the ringbuffer was created.
- */
-
-#define lws_ring_consume_and_update_oldest_tail(\
-		___ring,    /* the lws_ring object */ \
-		___type,    /* type of objects with tails */ \
-		___ptail,   /* ptr to tail of obj with tail doing consuming */ \
-		___count,   /* count of payload objects being consumed */ \
-		___list_head,	/* head of list of objects with tails */ \
-		___mtail,   /* member name of tail in ___type */ \
-		___mlist  /* member name of next list member ptr in ___type */ \
-	) { \
-		int ___n, ___m; \
-	\
-	___n = lws_ring_get_oldest_tail(___ring) == *(___ptail); \
-	lws_ring_consume(___ring, ___ptail, NULL, ___count); \
-	if (___n) { \
-		uint32_t ___oldest; \
-		___n = 0; \
-		___oldest = *(___ptail); \
-		lws_start_foreach_llp(___type **, ___ppss, ___list_head) { \
-			___m = lws_ring_get_count_waiting_elements( \
-					___ring, &(*___ppss)->tail); \
-			if (___m >= ___n) { \
-				___n = ___m; \
-				___oldest = (*___ppss)->tail; \
-			} \
-		} lws_end_foreach_llp(___ppss, ___mlist); \
-	\
-		lws_ring_update_oldest_tail(___ring, ___oldest); \
-	} \
-}
-
-/*
- * This does the same as the lws_ring_consume_and_update_oldest_tail()
- * helper, but for the simpler case there is only one consumer, so one
- * tail, and that tail is always the oldest tail.
- */
-
-#define lws_ring_consume_single_tail(\
-		___ring,  /* the lws_ring object */ \
-		___ptail, /* ptr to tail of obj with tail doing consuming */ \
-		___count  /* count of payload objects being consumed */ \
-	) { \
-	lws_ring_consume(___ring, ___ptail, NULL, ___count); \
-	lws_ring_update_oldest_tail(___ring, *(___ptail)); \
-}
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-service.h b/thirdparty/libwebsockets/include/libwebsockets/lws-service.h
deleted file mode 100644
index f4109f0431..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-service.h
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup service Built-in service loop entry
- *
- * ##Built-in service loop entry
- *
- * If you're not using libev / libuv, these apis are needed to enter the poll()
- * wait in lws and service any connections with pending events.
- */
-///@{
-
-/**
- * lws_service() - Service any pending websocket activity
- * \param context:	Websocket context
- * \param timeout_ms:	Timeout for poll; 0 means return immediately if nothing needed
- *		service otherwise block and service immediately, returning
- *		after the timeout if nothing needed service.
- *
- *	This function deals with any pending websocket traffic, for three
- *	kinds of event.  It handles these events on both server and client
- *	types of connection the same.
- *
- *	1) Accept new connections to our context's server
- *
- *	2) Call the receive callback for incoming frame data received by
- *	    server or client connections.
- *
- *	You need to call this service function periodically to all the above
- *	functions to happen; if your application is single-threaded you can
- *	just call it in your main event loop.
- *
- *	Alternatively you can fork a new process that asynchronously handles
- *	calling this service in a loop.  In that case you are happy if this
- *	call blocks your thread until it needs to take care of something and
- *	would call it with a large nonzero timeout.  Your loop then takes no
- *	CPU while there is nothing happening.
- *
- *	If you are calling it in a single-threaded app, you don't want it to
- *	wait around blocking other things in your loop from happening, so you
- *	would call it with a timeout_ms of 0, so it returns immediately if
- *	nothing is pending, or as soon as it services whatever was pending.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_service(struct lws_context *context, int timeout_ms);
-
-/**
- * lws_service_tsi() - Service any pending websocket activity
- *
- * \param context:	Websocket context
- * \param timeout_ms:	Timeout for poll; 0 means return immediately if nothing needed
- *		service otherwise block and service immediately, returning
- *		after the timeout if nothing needed service.
- * \param tsi:		Thread service index, starting at 0
- *
- * Same as lws_service(), but for a specific thread service index.  Only needed
- * if you are spawning multiple service threads.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_service_tsi(struct lws_context *context, int timeout_ms, int tsi);
-
-/**
- * lws_cancel_service_pt() - Cancel servicing of pending socket activity
- *				on one thread
- * \param wsi:	Cancel service on the thread this wsi is serviced by
- *
- * Same as lws_cancel_service(), but targets a single service thread, the one
- * the wsi belongs to.  You probably want to use lws_cancel_service() instead.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_cancel_service_pt(struct lws *wsi);
-
-/**
- * lws_cancel_service() - Cancel wait for new pending socket activity
- * \param context:	Websocket context
- *
- * This function creates an immediate "synchronous interrupt" to the lws poll()
- * wait or event loop.  As soon as possible in the serialzed service sequencing,
- * a LWS_CALLBACK_EVENT_WAIT_CANCELLED callback is sent to every protocol on
- * every vhost.
- *
- * lws_cancel_service() may be called from another thread while the context
- * exists, and its effect will be immediately serialized.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_cancel_service(struct lws_context *context);
-
-/**
- * lws_service_fd() - Service polled socket with something waiting
- * \param context:	Websocket context
- * \param pollfd:	The pollfd entry describing the socket fd and which events
- *		happened, or NULL to tell lws to do only timeout servicing.
- *
- * This function takes a pollfd that has POLLIN or POLLOUT activity and
- * services it according to the state of the associated
- * struct lws.
- *
- * The one call deals with all "service" that might happen on a socket
- * including listen accepts, http files as well as websocket protocol.
- *
- * If a pollfd says it has something, you can just pass it to
- * lws_service_fd() whether it is a socket handled by lws or not.
- * If it sees it is a lws socket, the traffic will be handled and
- * pollfd->revents will be zeroed now.
- *
- * If the socket is foreign to lws, it leaves revents alone.  So you can
- * see if you should service yourself by checking the pollfd revents
- * after letting lws try to service it.
- *
- * You should also call this with pollfd = NULL to just allow the
- * once-per-second global timeout checks; if less than a second since the last
- * check it returns immediately then.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_service_fd(struct lws_context *context, struct lws_pollfd *pollfd);
-
-/**
- * lws_service_fd_tsi() - Service polled socket in specific service thread
- * \param context:	Websocket context
- * \param pollfd:	The pollfd entry describing the socket fd and which events
- *		happened.
- * \param tsi: thread service index
- *
- * Same as lws_service_fd() but used with multiple service threads
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_service_fd_tsi(struct lws_context *context, struct lws_pollfd *pollfd,
-		   int tsi);
-
-/**
- * lws_service_adjust_timeout() - Check for any connection needing forced service
- * \param context:	Websocket context
- * \param timeout_ms:	The original poll timeout value.  You can just set this
- *			to 1 if you don't really have a poll timeout.
- * \param tsi: thread service index
- *
- * Under some conditions connections may need service even though there is no
- * pending network action on them, this is "forced service".  For default
- * poll() and libuv / libev, the library takes care of calling this and
- * dealing with it for you.  But for external poll() integration, you need
- * access to the apis.
- *
- * If anybody needs "forced service", returned timeout is zero.  In that case,
- * you can call lws_service_tsi() with a timeout of -1 to only service
- * guys who need forced service.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_service_adjust_timeout(struct lws_context *context, int timeout_ms, int tsi);
-
-/* Backwards compatibility */
-#define lws_plat_service_tsi lws_service_tsi
-
-LWS_VISIBLE LWS_EXTERN int
-lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd);
-
-///@}
-
-/*! \defgroup uv libuv helpers
- *
- * ##libuv helpers
- *
- * APIs specific to libuv event loop itegration
- */
-///@{
-#ifdef LWS_WITH_LIBUV
-/*
- * Any direct libuv allocations in lws protocol handlers must participate in the
- * lws reference counting scheme.  Two apis are provided:
- *
- * - lws_libuv_static_refcount_add(handle, context) to mark the handle with
- *  a pointer to the context and increment the global uv object counter
- *
- * - lws_libuv_static_refcount_del() which should be used as the close callback
- *   for your own libuv objects declared in the protocol scope.
- *
- * Using the apis allows lws to detach itself from a libuv loop completely
- * cleanly and at the moment all of its libuv objects have completed close.
- */
-
-LWS_VISIBLE LWS_EXTERN uv_loop_t *
-lws_uv_getloop(struct lws_context *context, int tsi);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_libuv_static_refcount_add(uv_handle_t *, struct lws_context *context);
-
-LWS_VISIBLE LWS_EXTERN void
-lws_libuv_static_refcount_del(uv_handle_t *);
-
-#endif /* LWS_WITH_LIBUV */
-
-#if defined(LWS_WITH_ESP32)
-#define lws_libuv_static_refcount_add(_a, _b)
-#define lws_libuv_static_refcount_del NULL
-#endif
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-sha1-base64.h b/thirdparty/libwebsockets/include/libwebsockets/lws-sha1-base64.h
deleted file mode 100644
index 5a2bfdbbb0..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-sha1-base64.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup sha SHA and B64 helpers
- * ##SHA and B64 helpers
- *
- * These provide SHA-1 and B64 helper apis
- */
-///@{
-#ifdef LWS_SHA1_USE_OPENSSL_NAME
-#define lws_SHA1 SHA1
-#else
-/**
- * lws_SHA1(): make a SHA-1 digest of a buffer
- *
- * \param d: incoming buffer
- * \param n: length of incoming buffer
- * \param md: buffer for message digest (must be >= 20 bytes)
- *
- * Reduces any size buffer into a 20-byte SHA-1 hash.
- */
-LWS_VISIBLE LWS_EXTERN unsigned char *
-lws_SHA1(const unsigned char *d, size_t n, unsigned char *md);
-#endif
-/**
- * lws_b64_encode_string(): encode a string into base 64
- *
- * \param in: incoming buffer
- * \param in_len: length of incoming buffer
- * \param out: result buffer
- * \param out_size: length of result buffer
- *
- * Encodes a string using b64
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_b64_encode_string(const char *in, int in_len, char *out, int out_size);
-/**
- * lws_b64_encode_string_url(): encode a string into base 64
- *
- * \param in: incoming buffer
- * \param in_len: length of incoming buffer
- * \param out: result buffer
- * \param out_size: length of result buffer
- *
- * Encodes a string using b64 with the "URL" variant (+ -> -, and / -> _)
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_b64_encode_string_url(const char *in, int in_len, char *out, int out_size);
-/**
- * lws_b64_decode_string(): decode a string from base 64
- *
- * \param in: incoming buffer
- * \param out: result buffer
- * \param out_size: length of result buffer
- *
- * Decodes a NUL-terminated string using b64
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_b64_decode_string(const char *in, char *out, int out_size);
-/**
- * lws_b64_decode_string_len(): decode a string from base 64
- *
- * \param in: incoming buffer
- * \param in_len: length of incoming buffer
- * \param out: result buffer
- * \param out_size: length of result buffer
- *
- * Decodes a range of chars using b64
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_b64_decode_string_len(const char *in, int in_len, char *out, int out_size);
-///@}
-
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-spa.h b/thirdparty/libwebsockets/include/libwebsockets/lws-spa.h
deleted file mode 100644
index fcaf3889f5..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-spa.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup form-parsing  Form Parsing
- * \ingroup http
- * ##POSTed form parsing functions
- *
- * These lws_spa (stateful post arguments) apis let you parse and urldecode
- * POSTed form arguments, both using simple urlencoded and multipart transfer
- * encoding.
- *
- * It's capable of handling file uploads as well a named input parsing,
- * and the apis are the same for both form upload styles.
- *
- * You feed it a list of parameter names and it creates pointers to the
- * urldecoded arguments: file upload parameters pass the file data in chunks to
- * a user-supplied callback as they come.
- *
- * Since it's stateful, it handles the incoming data needing more than one
- * POST_BODY callback and has no limit on uploaded file size.
- */
-///@{
-
-/** enum lws_spa_fileupload_states */
-enum lws_spa_fileupload_states {
-	LWS_UFS_CONTENT,
-	/**< a chunk of file content has arrived */
-	LWS_UFS_FINAL_CONTENT,
-	/**< the last chunk (possibly zero length) of file content has arrived */
-	LWS_UFS_OPEN
-	/**< a new file is starting to arrive */
-};
-
-/**
- * lws_spa_fileupload_cb() - callback to receive file upload data
- *
- * \param data: opt_data pointer set in lws_spa_create
- * \param name: name of the form field being uploaded
- * \param filename: original filename from client
- * \param buf: start of data to receive
- * \param len: length of data to receive
- * \param state: information about how this call relates to file
- *
- * Notice name and filename shouldn't be trusted, as they are passed from
- * HTTP provided by the client.
- */
-typedef int (*lws_spa_fileupload_cb)(void *data, const char *name,
-				     const char *filename, char *buf, int len,
-				     enum lws_spa_fileupload_states state);
-
-/** struct lws_spa - opaque urldecode parser capable of handling multipart
- *			and file uploads */
-struct lws_spa;
-
-/**
- * lws_spa_create() - create urldecode parser
- *
- * \param wsi: lws connection (used to find Content Type)
- * \param param_names: array of form parameter names, like "username"
- * \param count_params: count of param_names
- * \param max_storage: total amount of form parameter values we can store
- * \param opt_cb: NULL, or callback to receive file upload data.
- * \param opt_data: NULL, or user pointer provided to opt_cb.
- *
- * Creates a urldecode parser and initializes it.
- *
- * opt_cb can be NULL if you just want normal name=value parsing, however
- * if one or more entries in your form are bulk data (file transfer), you
- * can provide this callback and filter on the name callback parameter to
- * treat that urldecoded data separately.  The callback should return -1
- * in case of fatal error, and 0 if OK.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_spa *
-lws_spa_create(struct lws *wsi, const char * const *param_names,
-	       int count_params, int max_storage, lws_spa_fileupload_cb opt_cb,
-	       void *opt_data);
-
-/**
- * lws_spa_process() - parses a chunk of input data
- *
- * \param spa: the parser object previously created
- * \param in: incoming, urlencoded data
- * \param len: count of bytes valid at \param in
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_spa_process(struct lws_spa *spa, const char *in, int len);
-
-/**
- * lws_spa_finalize() - indicate incoming data completed
- *
- * \param spa: the parser object previously created
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_spa_finalize(struct lws_spa *spa);
-
-/**
- * lws_spa_get_length() - return length of parameter value
- *
- * \param spa: the parser object previously created
- * \param n: parameter ordinal to return length of value for
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_spa_get_length(struct lws_spa *spa, int n);
-
-/**
- * lws_spa_get_string() - return pointer to parameter value
- * \param spa: the parser object previously created
- * \param n: parameter ordinal to return pointer to value for
- */
-LWS_VISIBLE LWS_EXTERN const char *
-lws_spa_get_string(struct lws_spa *spa, int n);
-
-/**
- * lws_spa_destroy() - destroy parser object
- *
- * \param spa: the parser object previously created
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_spa_destroy(struct lws_spa *spa);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-stats.h b/thirdparty/libwebsockets/include/libwebsockets/lws-stats.h
deleted file mode 100644
index b0031ca3e5..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-stats.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*
- * Stats are all uint64_t numbers that start at 0.
- * Index names here have the convention
- *
- *  _C_ counter
- *  _B_ byte count
- *  _MS_ millisecond count
- */
-
-enum {
-	LWSSTATS_C_CONNECTIONS, /**< count incoming connections */
-	LWSSTATS_C_API_CLOSE, /**< count calls to close api */
-	LWSSTATS_C_API_READ, /**< count calls to read from socket api */
-	LWSSTATS_C_API_LWS_WRITE, /**< count calls to lws_write API */
-	LWSSTATS_C_API_WRITE, /**< count calls to write API */
-	LWSSTATS_C_WRITE_PARTIALS, /**< count of partial writes */
-	LWSSTATS_C_WRITEABLE_CB_REQ, /**< count of writable callback requests */
-	LWSSTATS_C_WRITEABLE_CB_EFF_REQ, /**< count of effective writable callback requests */
-	LWSSTATS_C_WRITEABLE_CB, /**< count of writable callbacks */
-	LWSSTATS_C_SSL_CONNECTIONS_FAILED, /**< count of failed SSL connections */
-	LWSSTATS_C_SSL_CONNECTIONS_ACCEPTED, /**< count of accepted SSL connections */
-	LWSSTATS_C_SSL_CONNECTIONS_ACCEPT_SPIN, /**< count of SSL_accept() attempts */
-	LWSSTATS_C_SSL_CONNS_HAD_RX, /**< count of accepted SSL conns that have had some RX */
-	LWSSTATS_C_TIMEOUTS, /**< count of timed-out connections */
-	LWSSTATS_C_SERVICE_ENTRY, /**< count of entries to lws service loop */
-	LWSSTATS_B_READ, /**< aggregate bytes read */
-	LWSSTATS_B_WRITE, /**< aggregate bytes written */
-	LWSSTATS_B_PARTIALS_ACCEPTED_PARTS, /**< aggreate of size of accepted write data from new partials */
-	LWSSTATS_MS_SSL_CONNECTIONS_ACCEPTED_DELAY, /**< aggregate delay in accepting connection */
-	LWSSTATS_MS_WRITABLE_DELAY, /**< aggregate delay between asking for writable and getting cb */
-	LWSSTATS_MS_WORST_WRITABLE_DELAY, /**< single worst delay between asking for writable and getting cb */
-	LWSSTATS_MS_SSL_RX_DELAY, /**< aggregate delay between ssl accept complete and first RX */
-	LWSSTATS_C_PEER_LIMIT_AH_DENIED, /**< number of times we would have given an ah but for the peer limit */
-	LWSSTATS_C_PEER_LIMIT_WSI_DENIED, /**< number of times we would have given a wsi but for the peer limit */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility */
-	LWSSTATS_SIZE
-};
-
-#if defined(LWS_WITH_STATS)
-
-LWS_VISIBLE LWS_EXTERN uint64_t
-lws_stats_get(struct lws_context *context, int index);
-LWS_VISIBLE LWS_EXTERN void
-lws_stats_log_dump(struct lws_context *context);
-#else
-static LWS_INLINE uint64_t
-lws_stats_get(struct lws_context *context, int index) { (void)context; (void)index;  return 0; }
-static LWS_INLINE void
-lws_stats_log_dump(struct lws_context *context) { (void)context; }
-#endif
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-threadpool.h b/thirdparty/libwebsockets/include/libwebsockets/lws-threadpool.h
deleted file mode 100644
index eb6c6e1a16..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-threadpool.h
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup threadpool Threadpool related functions
- * ##Threadpool
- * \ingroup lwsapi
- *
- * This allows you to create one or more pool of threads which can run tasks
- * associated with a wsi.  If the pool is busy, tasks wait on a queue.
- *
- * Tasks don't have to be atomic, if they will take more than a few tens of ms
- * they should return back to the threadpool worker with a return of 0.  This
- * will allow them to abort cleanly.
- */
-//@{
-
-struct lws_threadpool;
-struct lws_threadpool_task;
-
-enum lws_threadpool_task_status {
-	LWS_TP_STATUS_QUEUED,
-	LWS_TP_STATUS_RUNNING,
-	LWS_TP_STATUS_SYNCING,
-	LWS_TP_STATUS_STOPPING,
-	LWS_TP_STATUS_FINISHED, /* lws_threadpool_task_status() frees task */
-	LWS_TP_STATUS_STOPPED, /* lws_threadpool_task_status() frees task */
-};
-
-enum lws_threadpool_task_return {
-	/** Still work to do, just confirming not being stopped */
-	LWS_TP_RETURN_CHECKING_IN,
-	/** Still work to do, enter cond_wait until service thread syncs.  This
-	 * is used if you have filled your buffer(s) of data to the service
-	 * thread and are blocked until the service thread completes sending at
-	 * least one.
-	 */
-	LWS_TP_RETURN_SYNC,
-	/** No more work to do... */
-	LWS_TP_RETURN_FINISHED,
-	/** Responding to request to stop */
-	LWS_TP_RETURN_STOPPED,
-
-	/* OR on to indicate this task wishes to outlive its wsi */
-	LWS_TP_RETURN_FLAG_OUTLIVE = 64
-};
-
-struct lws_threadpool_create_args {
-	int threads;
-	int max_queue_depth;
-};
-
-struct lws_threadpool_task_args {
-	struct lws *wsi;	/**< user must set to wsi task is bound to */
-	void *user;		/**< user may set (user-private pointer) */
-	const char *name;	/**< user may set to describe task */
-	char async_task;	/**< set to allow the task to shrug off the loss
-				     of the associated wsi and continue to
-				     completion */
-	enum lws_threadpool_task_return (*task)(void *user,
-					enum lws_threadpool_task_status s);
-	/**< user must set to actual task function */
-	void (*cleanup)(struct lws *wsi, void *user);
-	/**< socket lifecycle may end while task is not stoppable, so the task
-	 * must be able to detach from any wsi and clean itself up when it does
-	 * stop.  If NULL, no cleanup necessary, otherwise point to a user-
-	 * supplied function that destroys the stuff in \p user.
-	 *
-	 * wsi may be NULL on entry, indicating the task got detached due to the
-	 * wsi closing before.
-	 */
-};
-
-/**
- * lws_threadpool_create() - create a pool of worker threads
- *
- * \param context: the lws_context the threadpool will exist inside
- * \param args: argument struct prepared by caller
- * \param format: printf-type format for the task name
- * \param ...: printf type args for the task name format
- *
- * Creates a pool of worker threads with \p threads and a queue of up to
- * \p max_queue_depth waiting tasks if all the threads are busy.
- *
- * Returns NULL if OOM, or a struct lws_threadpool pointer that must be
- * destroyed by lws_threadpool_destroy().
- */
-LWS_VISIBLE LWS_EXTERN struct lws_threadpool *
-lws_threadpool_create(struct lws_context *context,
-		      const struct lws_threadpool_create_args *args,
-		      const char *format, ...) LWS_FORMAT(3);
-
-/**
- * lws_threadpool_finish() - Stop all pending and running tasks
- *
- * \param tp: the threadpool object
- *
- * Marks the threadpool as under destruction.  Removes everything from the
- * pending queue and completes those tasks as LWS_TP_STATUS_STOPPED.
- *
- * Running tasks will also get LWS_TP_STATUS_STOPPED as soon as they
- * "resurface".
- *
- * This doesn't reap tasks or free the threadpool, the reaping is done by the
- * lws_threadpool_task_status() on the done task.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_threadpool_finish(struct lws_threadpool *tp);
-
-/**
- * lws_threadpool_destroy() - Destroy a threadpool
- *
- * \param tp: the threadpool object
- *
- * Waits for all worker threads to stop, ends the threads and frees the tp.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_threadpool_destroy(struct lws_threadpool *tp);
-
-/**
- * lws_threadpool_enqueue() - Queue the task and run it on a worker thread when possible
- *
- * \param tp: the threadpool to queue / run on
- * \param args: information about what to run
- * \param format: printf-type format for the task name
- * \param ...: printf type args for the task name format
- *
- * This asks for a task to run ASAP on a worker thread in threadpool \p tp.
- *
- * The args defines the wsi, a user-private pointer, a timeout in secs and
- * a pointer to the task function.
- *
- * Returns NULL or an opaque pointer to the queued (or running, or completed)
- * task.
- *
- * Once a task is created and enqueued, it can only be destroyed by calling
- * lws_threadpool_task_status() on it after it has reached the state
- * LWS_TP_STATUS_FINISHED or LWS_TP_STATUS_STOPPED.
- */
-LWS_VISIBLE LWS_EXTERN struct lws_threadpool_task *
-lws_threadpool_enqueue(struct lws_threadpool *tp,
-		       const struct lws_threadpool_task_args *args,
-		       const char *format, ...) LWS_FORMAT(3);
-
-/**
- * lws_threadpool_dequeue() - Dequeue or try to stop a running task
- *
- * \param wsi: the wsi whose current task we want to eliminate
- *
- * Returns 0 is the task was dequeued or already compeleted, or 1 if the task
- * has been asked to stop asynchronously.
- *
- * This doesn't free the task.  It only shortcuts it to state
- * LWS_TP_STATUS_STOPPED.  lws_threadpool_task_status() must be performed on
- * the task separately once it is in LWS_TP_STATUS_STOPPED to free the task.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_threadpool_dequeue(struct lws *wsi);
-
-/**
- * lws_threadpool_task_status() - Dequeue or try to stop a running task
- *
- * \param wsi: the wsi to query the current task of
- * \param task: receives a pointer to the opaque task
- * \param user: receives a void * pointer to the task user data
- *
- * This is the equivalent of posix waitpid()... it returns the status of the
- * task, and if the task is in state LWS_TP_STATUS_FINISHED or
- * LWS_TP_STATUS_STOPPED, frees \p task.  If in another state, the task
- * continues to exist.
- *
- * This is designed to be called from the service thread.
- *
- * Its use is to make sure the service thread has seen the state of the task
- * before deleting it.
- */
-LWS_VISIBLE LWS_EXTERN enum lws_threadpool_task_status
-lws_threadpool_task_status_wsi(struct lws *wsi,
-			       struct lws_threadpool_task **task, void **user);
-
-/**
- * lws_threadpool_task_sync() - Indicate to a stalled task it may continue
- *
- * \param task: the task to unblock
- * \param stop: 0 = run after unblock, 1 = when he unblocks, stop him
- *
- * Inform the task that the service thread has finished with the shared data
- * and that the task, if blocked in LWS_TP_RETURN_SYNC, may continue.
- *
- * If the lws service context determined that the task must be aborted, it
- * should still call this but with stop = 1, causing the task to finish.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_threadpool_task_sync(struct lws_threadpool_task *task, int stop);
-
-/**
- * lws_threadpool_dump() - dump the state of a threadpool to the log
- *
- * \param tp: The threadpool to dump
- *
- * This locks the threadpool and then dumps the pending queue, the worker
- * threads and the done queue, together with time information for how long
- * the tasks have been in their current state, how long they have occupied a
- * thread, etc.
- *
- * This only does anything on lws builds with CMAKE_BUILD_TYPE=DEBUG, otherwise
- * while it still exists, it's a NOP.
- */
-
-LWS_VISIBLE LWS_EXTERN void
-lws_threadpool_dump(struct lws_threadpool *tp);
-//@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-timeout-timer.h b/thirdparty/libwebsockets/include/libwebsockets/lws-timeout-timer.h
deleted file mode 100644
index e715ba15a3..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-timeout-timer.h
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup timeout Connection timeouts
-
-    APIs related to setting connection timeouts
-*/
-//@{
-
-/*
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-enum pending_timeout {
-	NO_PENDING_TIMEOUT					=  0,
-	PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE			=  1,
-	PENDING_TIMEOUT_AWAITING_CONNECT_RESPONSE		=  2,
-	PENDING_TIMEOUT_ESTABLISH_WITH_SERVER			=  3,
-	PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE		=  4,
-	PENDING_TIMEOUT_AWAITING_PING				=  5,
-	PENDING_TIMEOUT_CLOSE_ACK				=  6,
-	PENDING_TIMEOUT_UNUSED1					=  7,
-	PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE			=  8,
-	PENDING_TIMEOUT_SSL_ACCEPT				=  9,
-	PENDING_TIMEOUT_HTTP_CONTENT				= 10,
-	PENDING_TIMEOUT_AWAITING_CLIENT_HS_SEND			= 11,
-	PENDING_FLUSH_STORED_SEND_BEFORE_CLOSE			= 12,
-	PENDING_TIMEOUT_SHUTDOWN_FLUSH				= 13,
-	PENDING_TIMEOUT_CGI					= 14,
-	PENDING_TIMEOUT_HTTP_KEEPALIVE_IDLE			= 15,
-	PENDING_TIMEOUT_WS_PONG_CHECK_SEND_PING			= 16,
-	PENDING_TIMEOUT_WS_PONG_CHECK_GET_PONG			= 17,
-	PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD			= 18,
-	PENDING_TIMEOUT_AWAITING_SOCKS_GREETING_REPLY	        = 19,
-	PENDING_TIMEOUT_AWAITING_SOCKS_CONNECT_REPLY		= 20,
-	PENDING_TIMEOUT_AWAITING_SOCKS_AUTH_REPLY		= 21,
-	PENDING_TIMEOUT_KILLED_BY_SSL_INFO			= 22,
-	PENDING_TIMEOUT_KILLED_BY_PARENT			= 23,
-	PENDING_TIMEOUT_CLOSE_SEND				= 24,
-	PENDING_TIMEOUT_HOLDING_AH				= 25,
-	PENDING_TIMEOUT_UDP_IDLE				= 26,
-	PENDING_TIMEOUT_CLIENT_CONN_IDLE			= 27,
-	PENDING_TIMEOUT_LAGGING					= 28,
-	PENDING_TIMEOUT_THREADPOOL				= 29,
-	PENDING_TIMEOUT_THREADPOOL_TASK				= 30,
-	PENDING_TIMEOUT_KILLED_BY_PROXY_CLIENT_CLOSE		= 31,
-
-	/****** add new things just above ---^ ******/
-
-	PENDING_TIMEOUT_USER_REASON_BASE			= 1000
-};
-
-/**
- * lws_time_in_microseconds() - Returns the unix time in microseconds
- */
-LWS_VISIBLE LWS_EXTERN uint64_t
-lws_time_in_microseconds(void);
-
-#define LWS_TO_KILL_ASYNC -1
-/**< If LWS_TO_KILL_ASYNC is given as the timeout sec in a lws_set_timeout()
- * call, then the connection is marked to be killed at the next timeout
- * check.  This is how you should force-close the wsi being serviced if
- * you are doing it outside the callback (where you should close by nonzero
- * return).
- */
-#define LWS_TO_KILL_SYNC -2
-/**< If LWS_TO_KILL_SYNC is given as the timeout sec in a lws_set_timeout()
- * call, then the connection is closed before returning (which may delete
- * the wsi).  This should only be used where the wsi being closed is not the
- * wsi currently being serviced.
- */
-/**
- * lws_set_timeout() - marks the wsi as subject to a timeout
- *
- * You will not need this unless you are doing something special
- *
- * \param wsi:	Websocket connection instance
- * \param reason:	timeout reason
- * \param secs:	how many seconds.  You may set to LWS_TO_KILL_ASYNC to
- *		force the connection to timeout at the next opportunity, or
- *		LWS_TO_KILL_SYNC to close it synchronously if you know the
- *		wsi is not the one currently being serviced.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs);
-
-#define LWS_SET_TIMER_USEC_CANCEL ((lws_usec_t)-1ll)
-#define LWS_USEC_PER_SEC (1000000ll)
-
-/**
- * lws_set_timer_usecs() - schedules a callback on the wsi in the future
- *
- * \param wsi:	Websocket connection instance
- * \param usecs:  LWS_SET_TIMER_USEC_CANCEL removes any existing scheduled
- *		  callback, otherwise number of microseconds in the future
- *		  the callback will occur at.
- *
- * NOTE: event loop support for this:
- *
- *  default poll() loop:   yes
- *  libuv event loop:      yes
- *  libev:    not implemented (patch welcome)
- *  libevent: not implemented (patch welcome)
- *
- * After the deadline expires, the wsi will get a callback of type
- * LWS_CALLBACK_TIMER and the timer is exhausted.  The deadline may be
- * continuously deferred by further calls to lws_set_timer_usecs() with a later
- * deadline, or cancelled by lws_set_timer_usecs(wsi, -1).
- *
- * If the timer should repeat, lws_set_timer_usecs() must be called again from
- * LWS_CALLBACK_TIMER.
- *
- * Accuracy depends on the platform and the load on the event loop or system...
- * all that's guaranteed is the callback will come after the requested wait
- * period.
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_set_timer_usecs(struct lws *wsi, lws_usec_t usecs);
-
-/*
- * lws_timed_callback_vh_protocol() - calls back a protocol on a vhost after
- * 					the specified delay
- *
- * \param vh:	 the vhost to call back
- * \param protocol: the protocol to call back
- * \param reason: callback reason
- * \param secs:	how many seconds in the future to do the callback.  Set to
- *		-1 to cancel the timer callback.
- *
- * Callback the specified protocol with a fake wsi pointing to the specified
- * vhost and protocol, with the specified reason, at the specified time in the
- * future.
- *
- * Returns 0 if OK.
- *
- * In the multithreaded service case, the callback will occur in the same
- * service thread context as the call to this api that requested it.  If it is
- * called from a non-service thread, tsi 0 will handle it.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_timed_callback_vh_protocol(struct lws_vhost *vh,
-			       const struct lws_protocols *prot,
-			       int reason, int secs);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-tokenize.h b/thirdparty/libwebsockets/include/libwebsockets/lws-tokenize.h
deleted file mode 100644
index 26a57dfbaf..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-tokenize.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/* Do not treat - as a terminal character, so "my-token" is one token */
-#define LWS_TOKENIZE_F_MINUS_NONTERM	(1 << 0)
-/* Separately report aggregate colon-delimited tokens */
-#define LWS_TOKENIZE_F_AGG_COLON	(1 << 1)
-/* Enforce sequencing for a simple token , token , token ... list */
-#define LWS_TOKENIZE_F_COMMA_SEP_LIST	(1 << 2)
-/* Allow more characters in the tokens and less delimiters... default is
- * only alphanumeric + underscore in tokens */
-#define LWS_TOKENIZE_F_RFC7230_DELIMS	(1 << 3)
-/* Do not treat . as a terminal character, so "warmcat.com" is one token */
-#define LWS_TOKENIZE_F_DOT_NONTERM	(1 << 4)
-/* If something starts looking like a float, like 1.2, force to be string token.
- * This lets you receive dotted-quads like 192.168.0.1 as string tokens, and
- * avoids illegal float format detection like 1.myserver.com */
-#define LWS_TOKENIZE_F_NO_FLOATS	(1 << 5)
-
-typedef enum {
-
-	LWS_TOKZE_ERRS			=  5, /* the number of errors defined */
-
-	LWS_TOKZE_ERR_BROKEN_UTF8	= -5,	/* malformed or partial utf8 */
-	LWS_TOKZE_ERR_UNTERM_STRING	= -4,	/* ended while we were in "" */
-	LWS_TOKZE_ERR_MALFORMED_FLOAT	= -3,	/* like 0..1 or 0.1.1 */
-	LWS_TOKZE_ERR_NUM_ON_LHS	= -2,	/* like 123= or 0.1= */
-	LWS_TOKZE_ERR_COMMA_LIST	= -1,	/* like ",tok", or, "tok,," */
-
-	LWS_TOKZE_ENDED = 0,		/* no more content */
-
-	/* Note: results have ordinal 1+, EOT is 0 and errors are < 0 */
-
-	LWS_TOKZE_DELIMITER,		/* a delimiter appeared */
-	LWS_TOKZE_TOKEN,		/* a token appeared */
-	LWS_TOKZE_INTEGER,		/* an integer appeared */
-	LWS_TOKZE_FLOAT,		/* a float appeared */
-	LWS_TOKZE_TOKEN_NAME_EQUALS,	/* token [whitespace] = */
-	LWS_TOKZE_TOKEN_NAME_COLON,	/* token [whitespace] : (only with
-					   LWS_TOKENIZE_F_AGG_COLON flag) */
-	LWS_TOKZE_QUOTED_STRING,	/* "*", where * may have any char */
-
-} lws_tokenize_elem;
-
-/*
- * helper enums to allow caller to enforce legal delimiter sequencing, eg
- * disallow "token,,token", "token,", and ",token"
- */
-
-enum lws_tokenize_delimiter_tracking {
-	LWSTZ_DT_NEED_FIRST_CONTENT,
-	LWSTZ_DT_NEED_DELIM,
-	LWSTZ_DT_NEED_NEXT_CONTENT,
-};
-
-struct lws_tokenize {
-	const char *start; /**< set to the start of the string to tokenize */
-	const char *token; /**< the start of an identified token or delimiter */
-	int len;	/**< set to the length of the string to tokenize */
-	int token_len;	/**< the length of the identied token or delimiter */
-
-	int flags;	/**< optional LWS_TOKENIZE_F_ flags, or 0 */
-	int delim;
-};
-
-/**
- * lws_tokenize() - breaks down a string into tokens and delimiters in-place
- *
- * \param ts: the lws_tokenize struct to init
- * \param start: the string to tokenize
- * \param flags: LWS_TOKENIZE_F_ option flags
- *
- * This initializes the tokenize struct to point to the given string, and
- * sets the length to 2GiB - 1 (so there must be a terminating NUL)... you can
- * override this requirement by setting ts.len yourself before using it.
- *
- * .delim is also initialized to LWSTZ_DT_NEED_FIRST_CONTENT.
- */
-
-LWS_VISIBLE LWS_EXTERN void
-lws_tokenize_init(struct lws_tokenize *ts, const char *start, int flags);
-
-/**
- * lws_tokenize() - breaks down a string into tokens and delimiters in-place
- *
- * \param ts: the lws_tokenize struct with information and state on what to do
- *
- * The \p ts struct should have its start, len and flags members initialized to
- * reflect the string to be tokenized and any options.
- *
- * Then `lws_tokenize()` may be called repeatedly on the struct, returning one
- * of `lws_tokenize_elem` each time, and with the struct's `token` and
- * `token_len` members set to describe the content of the delimiter or token
- * payload each time.
- *
- * There are no allocations during the process.
- *
- * returns lws_tokenize_elem that was identified (LWS_TOKZE_ENDED means reached
- * the end of the string).
- */
-
-LWS_VISIBLE LWS_EXTERN lws_tokenize_elem
-lws_tokenize(struct lws_tokenize *ts);
-
-/**
- * lws_tokenize_cstr() - copy token string to NUL-terminated buffer
- *
- * \param ts: pointer to lws_tokenize struct to operate on
- * \param str: destination buffer
- * \pparam max: bytes in destination buffer
- *
- * returns 0 if OK or nonzero if the string + NUL won't fit.
- */
-
-LWS_VISIBLE LWS_EXTERN int
-lws_tokenize_cstr(struct lws_tokenize *ts, char *str, int max);
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-vfs.h b/thirdparty/libwebsockets/include/libwebsockets/lws-vfs.h
deleted file mode 100644
index 00e2fda5d3..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-vfs.h
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup fops file operation wrapping
- *
- * ##File operation wrapping
- *
- * Use these helper functions if you want to access a file from the perspective
- * of a specific wsi, which is usually the case.  If you just want contextless
- * file access, use the fops callbacks directly with NULL wsi instead of these
- * helpers.
- *
- * If so, then it calls the platform handler or user overrides where present
- * (as defined in info->fops)
- *
- * The advantage from all this is user code can be portable for file operations
- * without having to deal with differences between platforms.
- */
-//@{
-
-/** struct lws_plat_file_ops - Platform-specific file operations
- *
- * These provide platform-agnostic ways to deal with filesystem access in the
- * library and in the user code.
- */
-
-#if defined(LWS_WITH_ESP32)
-/* sdk preprocessor defs? compiler issue? gets confused with member names */
-#define LWS_FOP_OPEN		_open
-#define LWS_FOP_CLOSE		_close
-#define LWS_FOP_SEEK_CUR	_seek_cur
-#define LWS_FOP_READ		_read
-#define LWS_FOP_WRITE		_write
-#else
-#define LWS_FOP_OPEN		open
-#define LWS_FOP_CLOSE		close
-#define LWS_FOP_SEEK_CUR	seek_cur
-#define LWS_FOP_READ		read
-#define LWS_FOP_WRITE		write
-#endif
-
-#define LWS_FOP_FLAGS_MASK		   ((1 << 23) - 1)
-#define LWS_FOP_FLAG_COMPR_ACCEPTABLE_GZIP (1 << 24)
-#define LWS_FOP_FLAG_COMPR_IS_GZIP	   (1 << 25)
-#define LWS_FOP_FLAG_MOD_TIME_VALID	   (1 << 26)
-#define LWS_FOP_FLAG_VIRTUAL		   (1 << 27)
-
-struct lws_plat_file_ops;
-
-struct lws_fop_fd {
-	lws_filefd_type			fd;
-	/**< real file descriptor related to the file... */
-	const struct lws_plat_file_ops	*fops;
-	/**< fops that apply to this fop_fd */
-	void				*filesystem_priv;
-	/**< ignored by lws; owned by the fops handlers */
-	lws_filepos_t			pos;
-	/**< generic "position in file" */
-	lws_filepos_t			len;
-	/**< generic "length of file" */
-	lws_fop_flags_t			flags;
-	/**< copy of the returned flags */
-	uint32_t			mod_time;
-	/**< optional "modification time of file", only valid if .open()
-	 * set the LWS_FOP_FLAG_MOD_TIME_VALID flag */
-};
-typedef struct lws_fop_fd *lws_fop_fd_t;
-
-struct lws_fops_index {
-	const char *sig;	/* NULL or vfs signature, eg, ".zip/" */
-	uint8_t len;		/* length of above string */
-};
-
-struct lws_plat_file_ops {
-	lws_fop_fd_t (*LWS_FOP_OPEN)(const struct lws_plat_file_ops *fops,
-				     const char *filename, const char *vpath,
-				     lws_fop_flags_t *flags);
-	/**< Open file (always binary access if plat supports it)
-	 * vpath may be NULL, or if the fops understands it, the point at which
-	 * the filename's virtual part starts.
-	 * *flags & LWS_FOP_FLAGS_MASK should be set to O_RDONLY or O_RDWR.
-	 * If the file may be gzip-compressed,
-	 * LWS_FOP_FLAG_COMPR_ACCEPTABLE_GZIP is set.  If it actually is
-	 * gzip-compressed, then the open handler should OR
-	 * LWS_FOP_FLAG_COMPR_IS_GZIP on to *flags before returning.
-	 */
-	int (*LWS_FOP_CLOSE)(lws_fop_fd_t *fop_fd);
-	/**< close file AND set the pointer to NULL */
-	lws_fileofs_t (*LWS_FOP_SEEK_CUR)(lws_fop_fd_t fop_fd,
-					  lws_fileofs_t offset_from_cur_pos);
-	/**< seek from current position */
-	int (*LWS_FOP_READ)(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-			    uint8_t *buf, lws_filepos_t len);
-	/**< Read from file, on exit *amount is set to amount actually read */
-	int (*LWS_FOP_WRITE)(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-			     uint8_t *buf, lws_filepos_t len);
-	/**< Write to file, on exit *amount is set to amount actually written */
-
-	struct lws_fops_index fi[3];
-	/**< vfs path signatures implying use of this fops */
-
-	const struct lws_plat_file_ops *next;
-	/**< NULL or next fops in list */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility */
-};
-
-/**
- * lws_get_fops() - get current file ops
- *
- * \param context: context
- */
-LWS_VISIBLE LWS_EXTERN struct lws_plat_file_ops * LWS_WARN_UNUSED_RESULT
-lws_get_fops(struct lws_context *context);
-LWS_VISIBLE LWS_EXTERN void
-lws_set_fops(struct lws_context *context, const struct lws_plat_file_ops *fops);
-/**
- * lws_vfs_tell() - get current file position
- *
- * \param fop_fd: fop_fd we are asking about
- */
-LWS_VISIBLE LWS_EXTERN lws_filepos_t LWS_WARN_UNUSED_RESULT
-lws_vfs_tell(lws_fop_fd_t fop_fd);
-/**
- * lws_vfs_get_length() - get current file total length in bytes
- *
- * \param fop_fd: fop_fd we are asking about
- */
-LWS_VISIBLE LWS_EXTERN lws_filepos_t LWS_WARN_UNUSED_RESULT
-lws_vfs_get_length(lws_fop_fd_t fop_fd);
-/**
- * lws_vfs_get_mod_time() - get time file last modified
- *
- * \param fop_fd: fop_fd we are asking about
- */
-LWS_VISIBLE LWS_EXTERN uint32_t LWS_WARN_UNUSED_RESULT
-lws_vfs_get_mod_time(lws_fop_fd_t fop_fd);
-/**
- * lws_vfs_file_seek_set() - seek relative to start of file
- *
- * \param fop_fd: fop_fd we are seeking in
- * \param offset: offset from start of file
- */
-LWS_VISIBLE LWS_EXTERN lws_fileofs_t
-lws_vfs_file_seek_set(lws_fop_fd_t fop_fd, lws_fileofs_t offset);
-/**
- * lws_vfs_file_seek_end() - seek relative to end of file
- *
- * \param fop_fd: fop_fd we are seeking in
- * \param offset: offset from start of file
- */
-LWS_VISIBLE LWS_EXTERN lws_fileofs_t
-lws_vfs_file_seek_end(lws_fop_fd_t fop_fd, lws_fileofs_t offset);
-
-extern struct lws_plat_file_ops fops_zip;
-
-/**
- * lws_plat_file_open() - open vfs filepath
- *
- * \param fops: file ops struct that applies to this descriptor
- * \param vfs_path: filename to open
- * \param flags: pointer to open flags
- *
- * The vfs_path is scanned for known fops signatures, and the open directed
- * to any matching fops open.
- *
- * User code should use this api to perform vfs opens.
- *
- * returns semi-opaque handle
- */
-LWS_VISIBLE LWS_EXTERN lws_fop_fd_t LWS_WARN_UNUSED_RESULT
-lws_vfs_file_open(const struct lws_plat_file_ops *fops, const char *vfs_path,
-		  lws_fop_flags_t *flags);
-
-/**
- * lws_plat_file_close() - close file
- *
- * \param fop_fd: file handle to close
- */
-static LWS_INLINE int
-lws_vfs_file_close(lws_fop_fd_t *fop_fd)
-{
-	return (*fop_fd)->fops->LWS_FOP_CLOSE(fop_fd);
-}
-
-/**
- * lws_plat_file_seek_cur() - close file
- *
- *
- * \param fop_fd: file handle
- * \param offset: position to seek to
- */
-static LWS_INLINE lws_fileofs_t
-lws_vfs_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
-{
-	return fop_fd->fops->LWS_FOP_SEEK_CUR(fop_fd, offset);
-}
-/**
- * lws_plat_file_read() - read from file
- *
- * \param fop_fd: file handle
- * \param amount: how much to read (rewritten by call)
- * \param buf: buffer to write to
- * \param len: max length
- */
-static LWS_INLINE int LWS_WARN_UNUSED_RESULT
-lws_vfs_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		   uint8_t *buf, lws_filepos_t len)
-{
-	return fop_fd->fops->LWS_FOP_READ(fop_fd, amount, buf, len);
-}
-/**
- * lws_plat_file_write() - write from file
- *
- * \param fop_fd: file handle
- * \param amount: how much to write (rewritten by call)
- * \param buf: buffer to read from
- * \param len: max length
- */
-static LWS_INLINE int LWS_WARN_UNUSED_RESULT
-lws_vfs_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		    uint8_t *buf, lws_filepos_t len)
-{
-	return fop_fd->fops->LWS_FOP_WRITE(fop_fd, amount, buf, len);
-}
-
-/* these are the platform file operations implementations... they can
- * be called directly and used in fops arrays
- */
-
-LWS_VISIBLE LWS_EXTERN lws_fop_fd_t
-_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
-		    const char *vpath, lws_fop_flags_t *flags);
-LWS_VISIBLE LWS_EXTERN int
-_lws_plat_file_close(lws_fop_fd_t *fop_fd);
-LWS_VISIBLE LWS_EXTERN lws_fileofs_t
-_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset);
-LWS_VISIBLE LWS_EXTERN int
-_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		    uint8_t *buf, lws_filepos_t len);
-LWS_VISIBLE LWS_EXTERN int
-_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		     uint8_t *buf, lws_filepos_t len);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_alloc_vfs_file(struct lws_context *context, const char *filename,
-		   uint8_t **buf, lws_filepos_t *amount);
-//@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-write.h b/thirdparty/libwebsockets/include/libwebsockets/lws-write.h
deleted file mode 100644
index b73e51c789..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-write.h
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup sending-data Sending data
-
-    APIs related to writing data on a connection
-*/
-//@{
-#if !defined(LWS_SIZEOFPTR)
-#define LWS_SIZEOFPTR ((int)sizeof (void *))
-#endif
-
-#if defined(__x86_64__)
-#define _LWS_PAD_SIZE 16	/* Intel recommended for best performance */
-#else
-#define _LWS_PAD_SIZE LWS_SIZEOFPTR   /* Size of a pointer on the target arch */
-#endif
-#define _LWS_PAD(n) (((n) % _LWS_PAD_SIZE) ? \
-		((n) + (_LWS_PAD_SIZE - ((n) % _LWS_PAD_SIZE))) : (n))
-/* last 2 is for lws-meta */
-#define LWS_PRE _LWS_PAD(4 + 10 + 2)
-/* used prior to 1.7 and retained for backward compatibility */
-#define LWS_SEND_BUFFER_PRE_PADDING LWS_PRE
-#define LWS_SEND_BUFFER_POST_PADDING 0
-
-#define LWS_WRITE_RAW LWS_WRITE_HTTP
-
-/*
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-enum lws_write_protocol {
-	LWS_WRITE_TEXT						= 0,
-	/**< Send a ws TEXT message,the pointer must have LWS_PRE valid
-	 * memory behind it.
-	 *
-	 * The receiver expects only valid utf-8 in the payload */
-	LWS_WRITE_BINARY					= 1,
-	/**< Send a ws BINARY message, the pointer must have LWS_PRE valid
-	 * memory behind it.
-	 *
-	 * Any sequence of bytes is valid */
-	LWS_WRITE_CONTINUATION					= 2,
-	/**< Continue a previous ws message, the pointer must have LWS_PRE valid
-	 * memory behind it */
-	LWS_WRITE_HTTP						= 3,
-	/**< Send HTTP content */
-
-	/* LWS_WRITE_CLOSE is handled by lws_close_reason() */
-	LWS_WRITE_PING						= 5,
-	LWS_WRITE_PONG						= 6,
-
-	/* Same as write_http but we know this write ends the transaction */
-	LWS_WRITE_HTTP_FINAL					= 7,
-
-	/* HTTP2 */
-
-	LWS_WRITE_HTTP_HEADERS					= 8,
-	/**< Send http headers (http2 encodes this payload and LWS_WRITE_HTTP
-	 * payload differently, http 1.x links also handle this correctly. so
-	 * to be compatible with both in the future,header response part should
-	 * be sent using this regardless of http version expected)
-	 */
-	LWS_WRITE_HTTP_HEADERS_CONTINUATION			= 9,
-	/**< Continuation of http/2 headers
-	 */
-
-	/****** add new things just above ---^ ******/
-
-	/* flags */
-
-	LWS_WRITE_BUFLIST = 0x20,
-	/**< Don't actually write it... stick it on the output buflist and
-	 *   write it as soon as possible.  Useful if you learn you have to
-	 *   write something, have the data to write to hand but the timing is
-	 *   unrelated as to whether the connection is writable or not, and were
-	 *   otherwise going to have to allocate a temp buffer and write it
-	 *   later anyway */
-
-	LWS_WRITE_NO_FIN = 0x40,
-	/**< This part of the message is not the end of the message */
-
-	LWS_WRITE_H2_STREAM_END = 0x80,
-	/**< Flag indicates this packet should go out with STREAM_END if h2
-	 * STREAM_END is allowed on DATA or HEADERS.
-	 */
-
-	LWS_WRITE_CLIENT_IGNORE_XOR_MASK = 0x80
-	/**< client packet payload goes out on wire unmunged
-	 * only useful for security tests since normal servers cannot
-	 * decode the content if used */
-};
-
-/* used with LWS_CALLBACK_CHILD_WRITE_VIA_PARENT */
-
-struct lws_write_passthru {
-	struct lws *wsi;
-	unsigned char *buf;
-	size_t len;
-	enum lws_write_protocol wp;
-};
-
-
-/**
- * lws_write() - Apply protocol then write data to client
- * \param wsi:	Websocket instance (available from user callback)
- * \param buf:	The data to send.  For data being sent on a websocket
- *		connection (ie, not default http), this buffer MUST have
- *		LWS_PRE bytes valid BEFORE the pointer.
- *		This is so the protocol header data can be added in-situ.
- * \param len:	Count of the data bytes in the payload starting from buf
- * \param protocol:	Use LWS_WRITE_HTTP to reply to an http connection, and one
- *		of LWS_WRITE_BINARY or LWS_WRITE_TEXT to send appropriate
- *		data on a websockets connection.  Remember to allow the extra
- *		bytes before and after buf if LWS_WRITE_BINARY or LWS_WRITE_TEXT
- *		are used.
- *
- *	This function provides the way to issue data back to the client
- *	for both http and websocket protocols.
- *
- * IMPORTANT NOTICE!
- *
- * When sending with websocket protocol
- *
- * LWS_WRITE_TEXT,
- * LWS_WRITE_BINARY,
- * LWS_WRITE_CONTINUATION,
- * LWS_WRITE_PING,
- * LWS_WRITE_PONG,
- *
- * or sending on http/2,
- *
- * the send buffer has to have LWS_PRE bytes valid BEFORE the buffer pointer you
- * pass to lws_write().  Since you'll probably want to use http/2 before too
- * long, it's wise to just always do this with lws_write buffers... LWS_PRE is
- * typically 16 bytes it's not going to hurt usually.
- *
- * start of alloc       ptr passed to lws_write      end of allocation
- *       |                         |                         |
- *       v  <-- LWS_PRE bytes -->  v                         v
- *       [----------------  allocated memory  ---------------]
- *              (for lws use)      [====== user buffer ======]
- *
- * This allows us to add protocol info before and after the data, and send as
- * one packet on the network without payload copying, for maximum efficiency.
- *
- * So for example you need this kind of code to use lws_write with a
- * 128-byte payload
- *
- *   char buf[LWS_PRE + 128];
- *
- *   // fill your part of the buffer... for example here it's all zeros
- *   memset(&buf[LWS_PRE], 0, 128);
- *
- *   lws_write(wsi, &buf[LWS_PRE], 128, LWS_WRITE_TEXT);
- *
- * LWS_PRE is at least the frame nonce + 2 header + 8 length
- * LWS_SEND_BUFFER_POST_PADDING is deprecated, it's now 0 and can be left off.
- * The example apps no longer use it.
- *
- * Pad LWS_PRE to the CPU word size, so that word references
- * to the address immediately after the padding won't cause an unaligned access
- * error. Sometimes for performance reasons the recommended padding is even
- * larger than sizeof(void *).
- *
- *	In the case of sending using websocket protocol, be sure to allocate
- *	valid storage before and after buf as explained above.  This scheme
- *	allows maximum efficiency of sending data and protocol in a single
- *	packet while not burdening the user code with any protocol knowledge.
- *
- *	Return may be -1 for a fatal error needing connection close, or the
- *	number of bytes sent.
- *
- * Truncated Writes
- * ================
- *
- * The OS may not accept everything you asked to write on the connection.
- *
- * Posix defines POLLOUT indication from poll() to show that the connection
- * will accept more write data, but it doesn't specifiy how much.  It may just
- * accept one byte of whatever you wanted to send.
- *
- * LWS will buffer the remainder automatically, and send it out autonomously.
- *
- * During that time, WRITABLE callbacks will be suppressed.
- *
- * This is to handle corner cases where unexpectedly the OS refuses what we
- * usually expect it to accept.  You should try to send in chunks that are
- * almost always accepted in order to avoid the inefficiency of the buffering.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_write(struct lws *wsi, unsigned char *buf, size_t len,
-	  enum lws_write_protocol protocol);
-
-/* helper for case where buffer may be const */
-#define lws_write_http(wsi, buf, len) \
-	lws_write(wsi, (unsigned char *)(buf), len, LWS_WRITE_HTTP)
-
-/* helper for multi-frame ws message flags */
-static LWS_INLINE int
-lws_write_ws_flags(int initial, int is_start, int is_end)
-{
-	int r;
-
-	if (is_start)
-		r = initial;
-	else
-		r = LWS_WRITE_CONTINUATION;
-
-	if (!is_end)
-		r |= LWS_WRITE_NO_FIN;
-
-	return r;
-}
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-writeable.h b/thirdparty/libwebsockets/include/libwebsockets/lws-writeable.h
deleted file mode 100644
index dd5659c3f0..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-writeable.h
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup callback-when-writeable Callback when writeable
- *
- * ##Callback When Writeable
- *
- * lws can only write data on a connection when it is able to accept more
- * data without blocking.
- *
- * So a basic requirement is we should only use the lws_write() apis when the
- * connection we want to write on says that he can accept more data.
- *
- * When lws cannot complete your send at the time, it will buffer the data
- * and send it in the background, suppressing any further WRITEABLE callbacks
- * on that connection until it completes.  So it is important to write new
- * things in a new writeable callback.
- *
- * These apis reflect the various ways we can indicate we would like to be
- * called back when one or more connections is writeable.
- */
-///@{
-
-/**
- * lws_callback_on_writable() - Request a callback when this socket
- *					 becomes able to be written to without
- *					 blocking
- *
- * \param wsi:	Websocket connection instance to get callback for
- *
- * - Which:  only this wsi
- * - When:   when the individual connection becomes writeable
- * - What: LWS_CALLBACK_*_WRITEABLE
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_on_writable(struct lws *wsi);
-
-/**
- * lws_callback_on_writable_all_protocol() - Request a callback for all
- *			connections using the given protocol when it
- *			becomes possible to write to each socket without
- *			blocking in turn.
- *
- * \param context:	lws_context
- * \param protocol:	Protocol whose connections will get callbacks
- *
- * - Which:  connections using this protocol on ANY VHOST
- * - When:   when the individual connection becomes writeable
- * - What: LWS_CALLBACK_*_WRITEABLE
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_on_writable_all_protocol(const struct lws_context *context,
-				      const struct lws_protocols *protocol);
-
-/**
- * lws_callback_on_writable_all_protocol_vhost() - Request a callback for
- *			all connections on same vhost using the given protocol
- *			when it becomes possible to write to each socket without
- *			blocking in turn.
- *
- * \param vhost:	Only consider connections on this lws_vhost
- * \param protocol:	Protocol whose connections will get callbacks
- *
- * - Which:  connections using this protocol on GIVEN VHOST ONLY
- * - When:   when the individual connection becomes writeable
- * - What: LWS_CALLBACK_*_WRITEABLE
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_on_writable_all_protocol_vhost(const struct lws_vhost *vhost,
-				      const struct lws_protocols *protocol);
-
-/**
- * lws_callback_all_protocol() - Callback all connections using
- *				the given protocol with the given reason
- *
- * \param context:	lws_context
- * \param protocol:	Protocol whose connections will get callbacks
- * \param reason:	Callback reason index
- *
- * - Which:  connections using this protocol on ALL VHOSTS
- * - When:   before returning
- * - What:   reason
- *
- * This isn't normally what you want... normally any update of connection-
- * specific information can wait until a network-related callback like rx,
- * writable, or close.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_all_protocol(struct lws_context *context,
-			  const struct lws_protocols *protocol, int reason);
-
-/**
- * lws_callback_all_protocol_vhost() - Callback all connections using
- *			the given protocol with the given reason.  This is
- *			deprecated since v2.4: use lws_callback_all_protocol_vhost_args
- *
- * \param vh:		Vhost whose connections will get callbacks
- * \param protocol:	Which protocol to match.  NULL means all.
- * \param reason:	Callback reason index
- *
- * - Which:  connections using this protocol on GIVEN VHOST ONLY
- * - When:   now
- * - What:   reason
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_all_protocol_vhost(struct lws_vhost *vh,
-				const struct lws_protocols *protocol,
-				int reason)
-LWS_WARN_DEPRECATED;
-
-/**
- * lws_callback_all_protocol_vhost_args() - Callback all connections using
- *			the given protocol with the given reason and args
- *
- * \param vh:		Vhost whose connections will get callbacks
- * \param protocol:	Which protocol to match.  NULL means all.
- * \param reason:	Callback reason index
- * \param argp:		Callback "in" parameter
- * \param len:		Callback "len" parameter
- *
- * - Which:  connections using this protocol on GIVEN VHOST ONLY
- * - When:   now
- * - What:   reason
- */
-LWS_VISIBLE int
-lws_callback_all_protocol_vhost_args(struct lws_vhost *vh,
-				     const struct lws_protocols *protocol,
-				     int reason, void *argp, size_t len);
-
-/**
- * lws_callback_vhost_protocols() - Callback all protocols enabled on a vhost
- *					with the given reason
- *
- * \param wsi:	wsi whose vhost will get callbacks
- * \param reason:	Callback reason index
- * \param in:		in argument to callback
- * \param len:	len argument to callback
- *
- * - Which:  connections using this protocol on same VHOST as wsi ONLY
- * - When:   now
- * - What:   reason
- *
- * This is deprecated since v2.5, use lws_callback_vhost_protocols_vhost()
- * which takes the pointer to the vhost directly without using or needing the
- * wsi.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_vhost_protocols(struct lws *wsi, int reason, void *in, int len)
-LWS_WARN_DEPRECATED;
-
-/**
- * lws_callback_vhost_protocols_vhost() - Callback all protocols enabled on a vhost
- *					with the given reason
- *
- * \param vh:		vhost that will get callbacks
- * \param reason:	Callback reason index
- * \param in:		in argument to callback
- * \param len:		len argument to callback
- *
- * - Which:  connections using this protocol on same VHOST as wsi ONLY
- * - When:   now
- * - What:   reason
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_vhost_protocols_vhost(struct lws_vhost *vh, int reason, void *in,
-				   size_t len);
-
-LWS_VISIBLE LWS_EXTERN int
-lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
-			void *user, void *in, size_t len);
-
-/**
- * lws_get_socket_fd() - returns the socket file descriptor
- *
- * This is needed to use sendto() on UDP raw sockets
- *
- * \param wsi:	Websocket connection instance
- */
-LWS_VISIBLE LWS_EXTERN lws_sockfd_type
-lws_get_socket_fd(struct lws *wsi);
-
-/**
- * lws_get_peer_write_allowance() - get the amount of data writeable to peer
- * 					if known
- *
- * \param wsi:	Websocket connection instance
- *
- * if the protocol does not have any guidance, returns -1.  Currently only
- * http2 connections get send window information from this API.  But your code
- * should use it so it can work properly with any protocol.
- *
- * If nonzero return is the amount of payload data the peer or intermediary has
- * reported it has buffer space for.  That has NO relationship with the amount
- * of buffer space your OS can accept on this connection for a write action.
- *
- * This number represents the maximum you could send to the peer or intermediary
- * on this connection right now without the protocol complaining.
- *
- * lws manages accounting for send window updates and payload writes
- * automatically, so this number reflects the situation at the peer or
- * intermediary dynamically.
- */
-LWS_VISIBLE LWS_EXTERN lws_fileofs_t
-lws_get_peer_write_allowance(struct lws *wsi);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-ws-close.h b/thirdparty/libwebsockets/include/libwebsockets/lws-ws-close.h
deleted file mode 100644
index 9721e29233..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-ws-close.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup wsclose Websocket Close
- *
- * ##Websocket close frame control
- *
- * When we close a ws connection, we can send a reason code and a short
- * UTF-8 description back with the close packet.
- */
-///@{
-
-/*
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-/** enum lws_close_status - RFC6455 close status codes */
-enum lws_close_status {
-	LWS_CLOSE_STATUS_NOSTATUS				=    0,
-	LWS_CLOSE_STATUS_NORMAL					= 1000,
-	/**< 1000 indicates a normal closure, meaning that the purpose for
-      which the connection was established has been fulfilled. */
-	LWS_CLOSE_STATUS_GOINGAWAY				= 1001,
-	/**< 1001 indicates that an endpoint is "going away", such as a server
-      going down or a browser having navigated away from a page. */
-	LWS_CLOSE_STATUS_PROTOCOL_ERR				= 1002,
-	/**< 1002 indicates that an endpoint is terminating the connection due
-      to a protocol error. */
-	LWS_CLOSE_STATUS_UNACCEPTABLE_OPCODE			= 1003,
-	/**< 1003 indicates that an endpoint is terminating the connection
-      because it has received a type of data it cannot accept (e.g., an
-      endpoint that understands only text data MAY send this if it
-      receives a binary message). */
-	LWS_CLOSE_STATUS_RESERVED				= 1004,
-	/**< Reserved.  The specific meaning might be defined in the future. */
-	LWS_CLOSE_STATUS_NO_STATUS				= 1005,
-	/**< 1005 is a reserved value and MUST NOT be set as a status code in a
-      Close control frame by an endpoint.  It is designated for use in
-      applications expecting a status code to indicate that no status
-      code was actually present. */
-	LWS_CLOSE_STATUS_ABNORMAL_CLOSE				= 1006,
-	/**< 1006 is a reserved value and MUST NOT be set as a status code in a
-      Close control frame by an endpoint.  It is designated for use in
-      applications expecting a status code to indicate that the
-      connection was closed abnormally, e.g., without sending or
-      receiving a Close control frame. */
-	LWS_CLOSE_STATUS_INVALID_PAYLOAD			= 1007,
-	/**< 1007 indicates that an endpoint is terminating the connection
-      because it has received data within a message that was not
-      consistent with the type of the message (e.g., non-UTF-8 [RFC3629]
-      data within a text message). */
-	LWS_CLOSE_STATUS_POLICY_VIOLATION			= 1008,
-	/**< 1008 indicates that an endpoint is terminating the connection
-      because it has received a message that violates its policy.  This
-      is a generic status code that can be returned when there is no
-      other more suitable status code (e.g., 1003 or 1009) or if there
-      is a need to hide specific details about the policy. */
-	LWS_CLOSE_STATUS_MESSAGE_TOO_LARGE			= 1009,
-	/**< 1009 indicates that an endpoint is terminating the connection
-      because it has received a message that is too big for it to
-      process. */
-	LWS_CLOSE_STATUS_EXTENSION_REQUIRED			= 1010,
-	/**< 1010 indicates that an endpoint (client) is terminating the
-      connection because it has expected the server to negotiate one or
-      more extension, but the server didn't return them in the response
-      message of the WebSocket handshake.  The list of extensions that
-      are needed SHOULD appear in the /reason/ part of the Close frame.
-      Note that this status code is not used by the server, because it
-      can fail the WebSocket handshake instead */
-	LWS_CLOSE_STATUS_UNEXPECTED_CONDITION			= 1011,
-	/**< 1011 indicates that a server is terminating the connection because
-      it encountered an unexpected condition that prevented it from
-      fulfilling the request. */
-	LWS_CLOSE_STATUS_TLS_FAILURE				= 1015,
-	/**< 1015 is a reserved value and MUST NOT be set as a status code in a
-      Close control frame by an endpoint.  It is designated for use in
-      applications expecting a status code to indicate that the
-      connection was closed due to a failure to perform a TLS handshake
-      (e.g., the server certificate can't be verified). */
-
-	LWS_CLOSE_STATUS_CLIENT_TRANSACTION_DONE		= 2000,
-
-	/****** add new things just above ---^ ******/
-
-	LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY		= 9999,
-};
-
-/**
- * lws_close_reason - Set reason and aux data to send with Close packet
- *		If you are going to return nonzero from the callback
- *		requesting the connection to close, you can optionally
- *		call this to set the reason the peer will be told if
- *		possible.
- *
- * \param wsi:	The websocket connection to set the close reason on
- * \param status:	A valid close status from websocket standard
- * \param buf:	NULL or buffer containing up to 124 bytes of auxiliary data
- * \param len:	Length of data in \param buf to send
- */
-LWS_VISIBLE LWS_EXTERN void
-lws_close_reason(struct lws *wsi, enum lws_close_status status,
-		 unsigned char *buf, size_t len);
-
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-ws-ext.h b/thirdparty/libwebsockets/include/libwebsockets/lws-ws-ext.h
deleted file mode 100644
index 3face4f344..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-ws-ext.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/*! \defgroup extensions Extension related functions
- * ##Extension releated functions
- *
- *  Ws defines optional extensions, lws provides the ability to implement these
- *  in user code if so desired.
- *
- *  We provide one extensions permessage-deflate.
- */
-///@{
-
-/*
- * NOTE: These public enums are part of the abi.  If you want to add one,
- * add it at where specified so existing users are unaffected.
- */
-enum lws_extension_callback_reasons {
-	LWS_EXT_CB_CONSTRUCT				=  4,
-	LWS_EXT_CB_CLIENT_CONSTRUCT			=  5,
-	LWS_EXT_CB_DESTROY				=  8,
-	LWS_EXT_CB_PACKET_TX_PRESEND			= 12,
-	LWS_EXT_CB_PAYLOAD_TX				= 21,
-	LWS_EXT_CB_PAYLOAD_RX				= 22,
-	LWS_EXT_CB_OPTION_DEFAULT			= 23,
-	LWS_EXT_CB_OPTION_SET				= 24,
-	LWS_EXT_CB_OPTION_CONFIRM			= 25,
-	LWS_EXT_CB_NAMED_OPTION_SET			= 26,
-
-	/****** add new things just above ---^ ******/
-};
-
-/** enum lws_ext_options_types */
-enum lws_ext_options_types {
-	EXTARG_NONE, /**< does not take an argument */
-	EXTARG_DEC,  /**< requires a decimal argument */
-	EXTARG_OPT_DEC /**< may have an optional decimal argument */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility */
-};
-
-/** struct lws_ext_options -	Option arguments to the extension.  These are
- *				used in the negotiation at ws upgrade time.
- *				The helper function lws_ext_parse_options()
- *				uses these to generate callbacks */
-struct lws_ext_options {
-	const char *name; /**< Option name, eg, "server_no_context_takeover" */
-	enum lws_ext_options_types type; /**< What kind of args the option can take */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility */
-};
-
-/** struct lws_ext_option_arg */
-struct lws_ext_option_arg {
-	const char *option_name; /**< may be NULL, option_index used then */
-	int option_index; /**< argument ordinal to use if option_name missing */
-	const char *start; /**< value */
-	int len; /**< length of value */
-};
-
-/**
- * typedef lws_extension_callback_function() - Hooks to allow extensions to operate
- * \param context:	Websockets context
- * \param ext:	This extension
- * \param wsi:	Opaque websocket instance pointer
- * \param reason:	The reason for the call
- * \param user:	Pointer to ptr to per-session user data allocated by library
- * \param in:		Pointer used for some callback reasons
- * \param len:	Length set for some callback reasons
- *
- *	Each extension that is active on a particular connection receives
- *	callbacks during the connection lifetime to allow the extension to
- *	operate on websocket data and manage itself.
- *
- *	Libwebsockets takes care of allocating and freeing "user" memory for
- *	each active extension on each connection.  That is what is pointed to
- *	by the user parameter.
- *
- *	LWS_EXT_CB_CONSTRUCT:  called when the server has decided to
- *		select this extension from the list provided by the client,
- *		just before the server will send back the handshake accepting
- *		the connection with this extension active.  This gives the
- *		extension a chance to initialize its connection context found
- *		in user.
- *
- *	LWS_EXT_CB_CLIENT_CONSTRUCT: same as LWS_EXT_CB_CONSTRUCT
- *		but called when client is instantiating this extension.  Some
- *		extensions will work the same on client and server side and then
- *		you can just merge handlers for both CONSTRUCTS.
- *
- *	LWS_EXT_CB_DESTROY:  called when the connection the extension was
- *		being used on is about to be closed and deallocated.  It's the
- *		last chance for the extension to deallocate anything it has
- *		allocated in the user data (pointed to by user) before the
- *		user data is deleted.  This same callback is used whether you
- *		are in client or server instantiation context.
- *
- *	LWS_EXT_CB_PACKET_TX_PRESEND: this works the same way as
- *		LWS_EXT_CB_PACKET_RX_PREPARSE above, except it gives the
- *		extension a chance to change websocket data just before it will
- *		be sent out.  Using the same lws_token pointer scheme in in,
- *		the extension can change the buffer and the length to be
- *		transmitted how it likes.  Again if it wants to grow the
- *		buffer safely, it should copy the data into its own buffer and
- *		set the lws_tokens token pointer to it.
- *
- *	LWS_EXT_CB_ARGS_VALIDATE:
- */
-typedef int
-lws_extension_callback_function(struct lws_context *context,
-			      const struct lws_extension *ext, struct lws *wsi,
-			      enum lws_extension_callback_reasons reason,
-			      void *user, void *in, size_t len);
-
-/** struct lws_extension -	An extension we support */
-struct lws_extension {
-	const char *name; /**< Formal extension name, eg, "permessage-deflate" */
-	lws_extension_callback_function *callback; /**< Service callback */
-	const char *client_offer; /**< String containing exts and options client offers */
-
-	/* Add new things just above here ---^
-	 * This is part of the ABI, don't needlessly break compatibility */
-};
-
-/**
- * lws_set_extension_option(): set extension option if possible
- *
- * \param wsi:	websocket connection
- * \param ext_name:	name of ext, like "permessage-deflate"
- * \param opt_name:	name of option, like "rx_buf_size"
- * \param opt_val:	value to set option to
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_set_extension_option(struct lws *wsi, const char *ext_name,
-			 const char *opt_name, const char *opt_val);
-
-/**
- * lws_ext_parse_options() - deal with parsing negotiated extension options
- *
- * \param ext: related extension struct
- * \param wsi:	websocket connection
- * \param ext_user: per-connection extension private data
- * \param opts: list of supported options
- * \param o: option string to parse
- * \param len: length
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_ext_parse_options(const struct lws_extension *ext, struct lws *wsi,
-		      void *ext_user, const struct lws_ext_options *opts,
-		      const char *o, int len);
-
-/** lws_extension_callback_pm_deflate() - extension for RFC7692
- *
- * \param context:	lws context
- * \param ext:	related lws_extension struct
- * \param wsi:	websocket connection
- * \param reason:	incoming callback reason
- * \param user:	per-connection extension private data
- * \param in:	pointer parameter
- * \param len:	length parameter
- *
- * Built-in callback implementing RFC7692 permessage-deflate
- */
-LWS_EXTERN int
-lws_extension_callback_pm_deflate(struct lws_context *context,
-				  const struct lws_extension *ext,
-				  struct lws *wsi,
-				  enum lws_extension_callback_reasons reason,
-				  void *user, void *in, size_t len);
-
-/*
- * The internal exts are part of the public abi
- * If we add more extensions, publish the callback here  ------v
- */
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-ws-state.h b/thirdparty/libwebsockets/include/libwebsockets/lws-ws-state.h
deleted file mode 100644
index 3f65724a7a..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-ws-state.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-/** \defgroup wsstatus Websocket status APIs
- * ##Websocket connection status APIs
- *
- * These provide information about ws connection or message status
- */
-///@{
-/**
- * lws_send_pipe_choked() - tests if socket is writable or not
- * \param wsi: lws connection
- *
- * Allows you to check if you can write more on the socket
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_send_pipe_choked(struct lws *wsi);
-
-/**
- * lws_is_final_fragment() - tests if last part of ws message
- *
- * \param wsi: lws connection
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_is_final_fragment(struct lws *wsi);
-
-/**
- * lws_is_first_fragment() - tests if first part of ws message
- *
- * \param wsi: lws connection
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_is_first_fragment(struct lws *wsi);
-
-/**
- * lws_get_reserved_bits() - access reserved bits of ws frame
- * \param wsi: lws connection
- */
-LWS_VISIBLE LWS_EXTERN unsigned char
-lws_get_reserved_bits(struct lws *wsi);
-
-/**
- * lws_partial_buffered() - find out if lws buffered the last write
- * \param wsi:	websocket connection to check
- *
- * Returns 1 if you cannot use lws_write because the last
- * write on this connection is still buffered, and can't be cleared without
- * returning to the service loop and waiting for the connection to be
- * writeable again.
- *
- * If you will try to do >1 lws_write call inside a single
- * WRITEABLE callback, you must check this after every write and bail if
- * set, ask for a new writeable callback and continue writing from there.
- *
- * This is never set at the start of a writeable callback, but any write
- * may set it.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_partial_buffered(struct lws *wsi);
-
-/**
- * lws_frame_is_binary(): true if the current frame was sent in binary mode
- *
- * \param wsi: the connection we are inquiring about
- *
- * This is intended to be called from the LWS_CALLBACK_RECEIVE callback if
- * it's interested to see if the frame it's dealing with was sent in binary
- * mode.
- */
-LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
-lws_frame_is_binary(struct lws *wsi);
-///@}
diff --git a/thirdparty/libwebsockets/include/libwebsockets/lws-x509.h b/thirdparty/libwebsockets/include/libwebsockets/lws-x509.h
deleted file mode 100644
index f8e5cb0fad..0000000000
--- a/thirdparty/libwebsockets/include/libwebsockets/lws-x509.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- * included from libwebsockets.h
- */
-
-enum lws_tls_cert_info {
-	LWS_TLS_CERT_INFO_VALIDITY_FROM,
-	/**< fills .time with the time_t the cert validity started from */
-	LWS_TLS_CERT_INFO_VALIDITY_TO,
-	/**< fills .time with the time_t the cert validity ends at */
-	LWS_TLS_CERT_INFO_COMMON_NAME,
-	/**< fills up to len bytes of .ns.name with the cert common name */
-	LWS_TLS_CERT_INFO_ISSUER_NAME,
-	/**< fills up to len bytes of .ns.name with the cert issuer name */
-	LWS_TLS_CERT_INFO_USAGE,
-	/**< fills verified with a bitfield asserting the valid uses */
-	LWS_TLS_CERT_INFO_VERIFIED,
-	/**< fills .verified with a bool representing peer cert validity,
-	 *   call returns -1 if no cert */
-	LWS_TLS_CERT_INFO_OPAQUE_PUBLIC_KEY,
-	/**< the certificate's public key, as an opaque bytestream.  These
-	 * opaque bytestreams can only be compared with each other using the
-	 * same tls backend, ie, OpenSSL or mbedTLS.  The different backends
-	 * produce different, incompatible representations for the same cert.
-	 */
-};
-
-union lws_tls_cert_info_results {
-	unsigned int verified;
-	time_t time;
-	unsigned int usage;
-	struct {
-		int len;
-		/* KEEP LAST... notice the [64] is only there because
-		 * name[] is not allowed in a union.  The actual length of
-		 * name[] is arbitrary and is passed into the api using the
-		 * len parameter.  Eg
-		 *
-		 * char big[1024];
-		 * union lws_tls_cert_info_results *buf =
-		 * 	(union lws_tls_cert_info_results *)big;
-		 *
-		 * lws_tls_peer_cert_info(wsi, type, buf, sizeof(big) -
-		 *			  sizeof(*buf) + sizeof(buf->ns.name));
-		 */
-		char name[64];
-	} ns;
-};
-
-/**
- * lws_tls_peer_cert_info() - get information from the peer's TLS cert
- *
- * \param wsi: the connection to query
- * \param type: one of LWS_TLS_CERT_INFO_
- * \param buf: pointer to union to take result
- * \param len: when result is a string, the true length of buf->ns.name[]
- *
- * lws_tls_peer_cert_info() lets you get hold of information from the peer
- * certificate.
- *
- * Return 0 if there is a result in \p buf, or -1 indicating there was no cert
- * or another problem.
- *
- * This function works the same no matter if the TLS backend is OpenSSL or
- * mbedTLS.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_tls_peer_cert_info(struct lws *wsi, enum lws_tls_cert_info type,
-		       union lws_tls_cert_info_results *buf, size_t len);
-
-/**
- * lws_tls_vhost_cert_info() - get information from the vhost's own TLS cert
- *
- * \param vhost: the vhost to query
- * \param type: one of LWS_TLS_CERT_INFO_
- * \param buf: pointer to union to take result
- * \param len: when result is a string, the true length of buf->ns.name[]
- *
- * lws_tls_vhost_cert_info() lets you get hold of information from the vhost
- * certificate.
- *
- * Return 0 if there is a result in \p buf, or -1 indicating there was no cert
- * or another problem.
- *
- * This function works the same no matter if the TLS backend is OpenSSL or
- * mbedTLS.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_tls_vhost_cert_info(struct lws_vhost *vhost, enum lws_tls_cert_info type,
-		        union lws_tls_cert_info_results *buf, size_t len);
-
-/**
- * lws_tls_acme_sni_cert_create() - creates a temp selfsigned cert
- *				    and attaches to a vhost
- *
- * \param vhost: the vhost to acquire the selfsigned cert
- * \param san_a: SAN written into the certificate
- * \param san_b: second SAN written into the certificate
- *
- *
- * Returns 0 if created and attached to the vhost.  Returns -1 if problems and
- * frees all allocations before returning.
- *
- * On success, any allocations are destroyed at vhost destruction automatically.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_tls_acme_sni_cert_create(struct lws_vhost *vhost, const char *san_a,
-			     const char *san_b);
-
-/**
- * lws_tls_acme_sni_csr_create() - creates a CSR and related private key PEM
- *
- * \param context: lws_context used for random
- * \param elements: array of LWS_TLS_REQ_ELEMENT_COUNT const char *
- * \param csr: buffer that will get the b64URL(ASN-1 CSR)
- * \param csr_len: max length of the csr buffer
- * \param privkey_pem: pointer to pointer allocated to hold the privkey_pem
- * \param privkey_len: pointer to size_t set to the length of the privkey_pem
- *
- * Creates a CSR according to the information in \p elements, and a private
- * RSA key used to sign the CSR.
- *
- * The outputs are the b64URL(ASN-1 CSR) into csr, and the PEM private key into
- * privkey_pem.
- *
- * Notice that \p elements points to an array of const char *s pointing to the
- * information listed in the enum above.  If an entry is NULL or an empty
- * string, the element is set to "none" in the CSR.
- *
- * Returns 0 on success or nonzero for failure.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_tls_acme_sni_csr_create(struct lws_context *context, const char *elements[],
-			    uint8_t *csr, size_t csr_len, char **privkey_pem,
-			    size_t *privkey_len);
-
-/**
- * lws_tls_cert_updated() - update every vhost using the given cert path
- *
- * \param context: our lws_context
- * \param certpath: the filepath to the certificate
- * \param keypath: the filepath to the private key of the certificate
- * \param mem_cert: copy of the cert in memory
- * \param len_mem_cert: length of the copy of the cert in memory
- * \param mem_privkey: copy of the private key in memory
- * \param len_mem_privkey: length of the copy of the private key in memory
- *
- * Checks every vhost to see if it is the using certificate described by the
- * the given filepaths.  If so, it attempts to update the vhost ssl_ctx to use
- * the new certificate.
- *
- * Returns 0 on success or nonzero for failure.
- */
-LWS_VISIBLE LWS_EXTERN int
-lws_tls_cert_updated(struct lws_context *context, const char *certpath,
-		     const char *keypath,
-		     const char *mem_cert, size_t len_mem_cert,
-		     const char *mem_privkey, size_t len_mem_privkey);
-
diff --git a/thirdparty/libwebsockets/ipv6_fixes.diff b/thirdparty/libwebsockets/ipv6_fixes.diff
index 5fa1e5c520..fe3e5e4b63 100644
--- a/thirdparty/libwebsockets/ipv6_fixes.diff
+++ b/thirdparty/libwebsockets/ipv6_fixes.diff
@@ -1,8 +1,8 @@
-diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c b/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c
-index 693efd28e..192dddee6 100644
---- a/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c
-+++ b/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c
-@@ -73,6 +73,11 @@ lws_plat_set_socket_options(struct lws_vhost *vhost, int fd, int unix_skt)
+diff --git a/thirdparty/libwebsockets/plat/lws-plat-unix.c b/thirdparty/libwebsockets/plat/lws-plat-unix.c
+index 7dba3bd82..d1bca8b5d 100644
+--- a/thirdparty/libwebsockets/plat/lws-plat-unix.c
++++ b/thirdparty/libwebsockets/plat/lws-plat-unix.c
+@@ -328,6 +328,11 @@ lws_plat_set_socket_options(struct lws_vhost *vhost, int fd)
  	int optval = 1;
  	socklen_t optlen = sizeof(optval);
  
@@ -14,11 +14,11 @@ index 693efd28e..192dddee6 100644
  #if defined(__APPLE__) || \
      defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
      defined(__NetBSD__) || \
-diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c b/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c
-index bf0935057..62a0a4984 100644
---- a/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c
-+++ b/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c
-@@ -56,6 +56,11 @@ lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd,
+diff --git a/thirdparty/libwebsockets/plat/lws-plat-win.c b/thirdparty/libwebsockets/plat/lws-plat-win.c
+index 1850b6425..26caab2cd 100644
+--- a/thirdparty/libwebsockets/plat/lws-plat-win.c
++++ b/thirdparty/libwebsockets/plat/lws-plat-win.c
+@@ -348,6 +348,11 @@ lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd)
  	struct protoent *tcp_proto;
  #endif
  
diff --git a/thirdparty/libwebsockets/lib/core/adopt.c b/thirdparty/libwebsockets/lib/core/adopt.c
deleted file mode 100644
index 49ac5af161..0000000000
--- a/thirdparty/libwebsockets/lib/core/adopt.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#include "core/private.h"
-
-
-static int
-lws_get_idlest_tsi(struct lws_context *context)
-{
-	unsigned int lowest = ~0;
-	int n = 0, hit = -1;
-
-	for (; n < context->count_threads; n++) {
-		if ((unsigned int)context->pt[n].fds_count !=
-		    context->fd_limit_per_thread - 1 &&
-		    (unsigned int)context->pt[n].fds_count < lowest) {
-			lowest = context->pt[n].fds_count;
-			hit = n;
-		}
-	}
-
-	return hit;
-}
-
-struct lws *
-lws_create_new_server_wsi(struct lws_vhost *vhost, int fixed_tsi)
-{
-	struct lws *new_wsi;
-	int n = fixed_tsi;
-
-	if (n < 0)
-		n = lws_get_idlest_tsi(vhost->context);
-
-	if (n < 0) {
-		lwsl_err("no space for new conn\n");
-		return NULL;
-	}
-
-	new_wsi = lws_zalloc(sizeof(struct lws), "new server wsi");
-	if (new_wsi == NULL) {
-		lwsl_err("Out of memory for new connection\n");
-		return NULL;
-	}
-
-	new_wsi->tsi = n;
-	lwsl_debug("new wsi %p joining vhost %s, tsi %d\n", new_wsi,
-		   vhost->name, new_wsi->tsi);
-
-	lws_vhost_bind_wsi(vhost, new_wsi);
-	new_wsi->context = vhost->context;
-	new_wsi->pending_timeout = NO_PENDING_TIMEOUT;
-	new_wsi->rxflow_change_to = LWS_RXFLOW_ALLOW;
-
-	/* initialize the instance struct */
-
-	lwsi_set_state(new_wsi, LRS_UNCONNECTED);
-	new_wsi->hdr_parsing_completed = 0;
-
-#ifdef LWS_WITH_TLS
-	new_wsi->tls.use_ssl = LWS_SSL_ENABLED(vhost);
-#endif
-
-	/*
-	 * these can only be set once the protocol is known
-	 * we set an un-established connection's protocol pointer
-	 * to the start of the supported list, so it can look
-	 * for matching ones during the handshake
-	 */
-	new_wsi->protocol = vhost->protocols;
-	new_wsi->user_space = NULL;
-	new_wsi->desc.sockfd = LWS_SOCK_INVALID;
-	new_wsi->position_in_fds_table = LWS_NO_FDS_POS;
-
-	vhost->context->count_wsi_allocated++;
-
-	/*
-	 * outermost create notification for wsi
-	 * no user_space because no protocol selection
-	 */
-	vhost->protocols[0].callback(new_wsi, LWS_CALLBACK_WSI_CREATE, NULL,
-				     NULL, 0);
-
-	return new_wsi;
-}
-
-
-/* if not a socket, it's a raw, non-ssl file descriptor */
-
-LWS_VISIBLE struct lws *
-lws_adopt_descriptor_vhost(struct lws_vhost *vh, lws_adoption_type type,
-			   lws_sock_file_fd_type fd, const char *vh_prot_name,
-			   struct lws *parent)
-{
-	struct lws_context *context = vh->context;
-	struct lws *new_wsi;
-	struct lws_context_per_thread *pt;
-	int n;
-
-#if defined(LWS_WITH_PEER_LIMITS)
-	struct lws_peer *peer = NULL;
-
-	if (type & LWS_ADOPT_SOCKET) {
-		peer = lws_get_or_create_peer(vh, fd.sockfd);
-
-		if (peer && context->ip_limit_wsi &&
-		    peer->count_wsi >= context->ip_limit_wsi) {
-			lwsl_notice("Peer reached wsi limit %d\n",
-					context->ip_limit_wsi);
-			lws_stats_atomic_bump(context, &context->pt[0],
-					      LWSSTATS_C_PEER_LIMIT_WSI_DENIED,
-					      1);
-			return NULL;
-		}
-	}
-#endif
-
-	n = -1;
-	if (parent)
-		n = parent->tsi;
-	new_wsi = lws_create_new_server_wsi(vh, n);
-	if (!new_wsi) {
-		if (type & LWS_ADOPT_SOCKET)
-			compatible_close(fd.sockfd);
-		return NULL;
-	}
-#if defined(LWS_WITH_PEER_LIMITS)
-	if (peer)
-		lws_peer_add_wsi(context, peer, new_wsi);
-#endif
-	pt = &context->pt[(int)new_wsi->tsi];
-	lws_stats_atomic_bump(context, pt, LWSSTATS_C_CONNECTIONS, 1);
-
-	if (parent) {
-		new_wsi->parent = parent;
-		new_wsi->sibling_list = parent->child_list;
-		parent->child_list = new_wsi;
-	}
-
-	new_wsi->desc = fd;
-
-	if (vh_prot_name) {
-		new_wsi->protocol = lws_vhost_name_to_protocol(new_wsi->vhost,
-							       vh_prot_name);
-		if (!new_wsi->protocol) {
-			lwsl_err("Protocol %s not enabled on vhost %s\n",
-				 vh_prot_name, new_wsi->vhost->name);
-			goto bail;
-		}
-		if (lws_ensure_user_space(new_wsi)) {
-		       lwsl_notice("OOM trying to get user_space\n");
-			goto bail;
-		}
-	}
-
-	if (!LWS_SSL_ENABLED(new_wsi->vhost) || !(type & LWS_ADOPT_SOCKET))
-		type &= ~LWS_ADOPT_ALLOW_SSL;
-
-	if (lws_role_call_adoption_bind(new_wsi, type, vh_prot_name)) {
-		lwsl_err("Unable to find a role that can adopt descriptor\n");
-		goto bail;
-	}
-
-	/*
-	 * A new connection was accepted. Give the user a chance to
-	 * set properties of the newly created wsi. There's no protocol
-	 * selected yet so we issue this to the vhosts's default protocol,
-	 * itself by default protocols[0]
-	 */
-	n = LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED;
-	if (!(type & LWS_ADOPT_HTTP)) {
-		if (!(type & LWS_ADOPT_SOCKET))
-			n = LWS_CALLBACK_RAW_ADOPT_FILE;
-		else
-			n = LWS_CALLBACK_RAW_ADOPT;
-	}
-
-	lwsl_debug("new wsi wsistate 0x%x\n", new_wsi->wsistate);
-
-	if (context->event_loop_ops->accept)
-		if (context->event_loop_ops->accept(new_wsi))
-			goto fail;
-
-	if (!(type & LWS_ADOPT_ALLOW_SSL)) {
-		lws_pt_lock(pt, __func__);
-		if (__insert_wsi_socket_into_fds(context, new_wsi)) {
-			lws_pt_unlock(pt);
-			lwsl_err("%s: fail inserting socket\n", __func__);
-			goto fail;
-		}
-		lws_pt_unlock(pt);
-	} else
-		if (lws_server_socket_service_ssl(new_wsi, fd.sockfd)) {
-			lwsl_info("%s: fail ssl negotiation\n", __func__);
-			goto fail;
-		}
-
-	/*
-	 *  by deferring callback to this point, after insertion to fds,
-	 * lws_callback_on_writable() can work from the callback
-	 */
-	if ((new_wsi->protocol->callback)(new_wsi, n, new_wsi->user_space,
-					  NULL, 0))
-		goto fail;
-
-	/* role may need to do something after all adoption completed */
-
-	lws_role_call_adoption_bind(new_wsi, type | _LWS_ADOPT_FINISH,
-				    vh_prot_name);
-
-	lws_cancel_service_pt(new_wsi);
-
-	return new_wsi;
-
-fail:
-	if (type & LWS_ADOPT_SOCKET)
-		lws_close_free_wsi(new_wsi, LWS_CLOSE_STATUS_NOSTATUS,
-				   "adopt skt fail");
-
-	return NULL;
-
-bail:
-       lwsl_notice("%s: exiting on bail\n", __func__);
-	if (parent)
-		parent->child_list = new_wsi->sibling_list;
-	if (new_wsi->user_space)
-		lws_free(new_wsi->user_space);
-
-	vh->context->count_wsi_allocated--;
-
-	lws_vhost_unbind_wsi(new_wsi);
-	lws_free(new_wsi);
-
-	compatible_close(fd.sockfd);
-
-	return NULL;
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket_vhost(struct lws_vhost *vh, lws_sockfd_type accept_fd)
-{
-	lws_sock_file_fd_type fd;
-
-	fd.sockfd = accept_fd;
-	return lws_adopt_descriptor_vhost(vh, LWS_ADOPT_SOCKET |
-			LWS_ADOPT_HTTP | LWS_ADOPT_ALLOW_SSL, fd, NULL, NULL);
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd)
-{
-	return lws_adopt_socket_vhost(context->vhost_list, accept_fd);
-}
-
-/* Common read-buffer adoption for lws_adopt_*_readbuf */
-static struct lws*
-adopt_socket_readbuf(struct lws *wsi, const char *readbuf, size_t len)
-{
-	struct lws_context_per_thread *pt;
-	struct lws_pollfd *pfd;
-	int n;
-
-	if (!wsi)
-		return NULL;
-
-	if (!readbuf || len == 0)
-		return wsi;
-
-	if (wsi->position_in_fds_table == LWS_NO_FDS_POS)
-		return wsi;
-
-	pt = &wsi->context->pt[(int)wsi->tsi];
-
-	n = lws_buflist_append_segment(&wsi->buflist, (const uint8_t *)readbuf,
-				       len);
-	if (n < 0)
-		goto bail;
-	if (n)
-		lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
-
-	/*
-	 * we can't process the initial read data until we can attach an ah.
-	 *
-	 * if one is available, get it and place the data in his ah rxbuf...
-	 * wsi with ah that have pending rxbuf get auto-POLLIN service.
-	 *
-	 * no autoservice because we didn't get a chance to attach the
-	 * readbuf data to wsi or ah yet, and we will do it next if we get
-	 * the ah.
-	 */
-	if (wsi->http.ah || !lws_header_table_attach(wsi, 0)) {
-
-		lwsl_notice("%s: calling service on readbuf ah\n", __func__);
-
-		/*
-		 * unlike a normal connect, we have the headers already
-		 * (or the first part of them anyway).
-		 * libuv won't come back and service us without a network
-		 * event, so we need to do the header service right here.
-		 */
-		pfd = &pt->fds[wsi->position_in_fds_table];
-		pfd->revents |= LWS_POLLIN;
-		lwsl_err("%s: calling service\n", __func__);
-		if (lws_service_fd_tsi(wsi->context, pfd, wsi->tsi))
-			/* service closed us */
-			return NULL;
-
-		return wsi;
-	}
-	lwsl_err("%s: deferring handling ah\n", __func__);
-
-	return wsi;
-
-bail:
-	lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS,
-			   "adopt skt readbuf fail");
-
-	return NULL;
-}
-
-LWS_EXTERN struct lws *
-lws_create_adopt_udp(struct lws_vhost *vhost, int port, int flags,
-		     const char *protocol_name, struct lws *parent_wsi)
-{
-	lws_sock_file_fd_type sock;
-	struct addrinfo h, *r, *rp;
-	struct lws *wsi = NULL;
-	char buf[16];
-	int n;
-
-	memset(&h, 0, sizeof(h));
-	h.ai_family = AF_UNSPEC;    /* Allow IPv4 or IPv6 */
-	h.ai_socktype = SOCK_DGRAM;
-	h.ai_protocol = IPPROTO_UDP;
-	h.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
-
-	lws_snprintf(buf, sizeof(buf), "%u", port);
-	n = getaddrinfo(NULL, buf, &h, &r);
-	if (n) {
-		lwsl_info("%s: getaddrinfo error: %s\n", __func__,
-			  gai_strerror(n));
-		goto bail;
-	}
-
-	for (rp = r; rp; rp = rp->ai_next) {
-		sock.sockfd = socket(rp->ai_family, rp->ai_socktype,
-				     rp->ai_protocol);
-		if (sock.sockfd != LWS_SOCK_INVALID)
-			break;
-	}
-	if (!rp) {
-		lwsl_err("%s: unable to create INET socket\n", __func__);
-		goto bail1;
-	}
-
-	if ((flags & LWS_CAUDP_BIND) && bind(sock.sockfd, rp->ai_addr,
-#if defined(_WIN32)
-			    (int)rp->ai_addrlen
-#else
-			    rp->ai_addrlen
-#endif
-	   ) == -1) {
-		lwsl_err("%s: bind failed\n", __func__);
-		goto bail2;
-	}
-
-	wsi = lws_adopt_descriptor_vhost(vhost, LWS_ADOPT_RAW_SOCKET_UDP, sock,
-				        protocol_name, parent_wsi);
-	if (!wsi)
-		lwsl_err("%s: udp adoption failed\n", __func__);
-
-bail2:
-	if (!wsi)
-		compatible_close((int)sock.sockfd);
-bail1:
-	freeaddrinfo(r);
-
-bail:
-	return wsi;
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
-			 const char *readbuf, size_t len)
-{
-        return adopt_socket_readbuf(lws_adopt_socket(context, accept_fd),
-				    readbuf, len);
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket_vhost_readbuf(struct lws_vhost *vhost,
-			       lws_sockfd_type accept_fd,
-			       const char *readbuf, size_t len)
-{
-        return adopt_socket_readbuf(lws_adopt_socket_vhost(vhost, accept_fd),
-				    readbuf, len);
-}
diff --git a/thirdparty/libwebsockets/lib/core/connect.c b/thirdparty/libwebsockets/lib/core/connect.c
deleted file mode 100644
index daffc193c8..0000000000
--- a/thirdparty/libwebsockets/lib/core/connect.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#include "core/private.h"
-
-void
-lws_client_stash_destroy(struct lws *wsi)
-{
-	if (!wsi || !wsi->stash)
-		return;
-
-	lws_free_set_NULL(wsi->stash->address);
-	lws_free_set_NULL(wsi->stash->path);
-	lws_free_set_NULL(wsi->stash->host);
-	lws_free_set_NULL(wsi->stash->origin);
-	lws_free_set_NULL(wsi->stash->protocol);
-	lws_free_set_NULL(wsi->stash->method);
-	lws_free_set_NULL(wsi->stash->iface);
-	lws_free_set_NULL(wsi->stash->alpn);
-
-	lws_free_set_NULL(wsi->stash);
-}
-
-LWS_VISIBLE struct lws *
-lws_client_connect_via_info(const struct lws_client_connect_info *i)
-{
-	struct lws *wsi, *safe = NULL;
-	const struct lws_protocols *p;
-	const char *local = i->protocol;
-#if LWS_MAX_SMP > 1
-	int n, tid;
-#endif
-
-	if (i->context->requested_kill)
-		return NULL;
-
-	if (!i->context->protocol_init_done)
-		lws_protocol_init(i->context);
-	/*
-	 * If we have .local_protocol_name, use it to select the local protocol
-	 * handler to bind to.  Otherwise use .protocol if http[s].
-	 */
-	if (i->local_protocol_name)
-		local = i->local_protocol_name;
-
-	/* PHASE 1: create a bare wsi */
-
-	wsi = lws_zalloc(sizeof(struct lws), "client wsi");
-	if (wsi == NULL)
-		goto bail;
-
-	wsi->context = i->context;
-	wsi->desc.sockfd = LWS_SOCK_INVALID;
-
-	wsi->vhost = NULL;
-	if (!i->vhost)
-		lws_vhost_bind_wsi(i->context->vhost_list, wsi);
-	else
-		lws_vhost_bind_wsi(i->vhost, wsi);
-
-	if (!wsi->vhost) {
-		lwsl_err("%s: No vhost in the context\n", __func__);
-
-		goto bail;
-	}
-
-	/*
-	 * PHASE 2: if SMP, bind the client to whatever tsi the current thread
-	 * represents
-	 */
-
-#if LWS_MAX_SMP > 1
-	tid = wsi->vhost->protocols[0].callback(wsi, LWS_CALLBACK_GET_THREAD_ID,
-						NULL, NULL, 0);
-
-	lws_context_lock(i->context, "client find tsi");
-
-	for (n = 0; n < i->context->count_threads; n++)
-		if (i->context->pt[n].service_tid == tid) {
-			lwsl_info("%s: client binds to caller tsi %d\n",
-				  __func__, n);
-			wsi->tsi = n;
-			break;
-		}
-
-	/*
-	 * this binding is sort of provisional, since when we try to insert
-	 * into the pt fds, there may be no space and it will fail
-	 */
-
-	lws_context_unlock(i->context);
-#endif
-
-	/*
-	 * PHASE 3: Choose an initial role for the wsi and do role-specific init
-	 *
-	 * Note the initial role may not reflect the final role, eg,
-	 * we may want ws, but first we have to go through h1 to get that
-	 */
-
-	lws_role_call_client_bind(wsi, i);
-
-	/*
-	 * PHASE 4: fill up the wsi with stuff from the connect_info as far as
-	 * it can go.  It's uncertain because not only is our connection
-	 * going to complete asynchronously, we might have bound to h1 and not
-	 * even be able to get ahold of an ah immediately.
-	 */
-
-	wsi->user_space = NULL;
-	wsi->pending_timeout = NO_PENDING_TIMEOUT;
-	wsi->position_in_fds_table = LWS_NO_FDS_POS;
-	wsi->c_port = i->port;
-
-	wsi->protocol = &wsi->vhost->protocols[0];
-	wsi->client_pipeline = !!(i->ssl_connection & LCCSCF_PIPELINE);
-
-	/*
-	 * PHASE 5: handle external user_space now, generic alloc is done in
-	 * role finalization
-	 */
-
-	if (!wsi->user_space && i->userdata) {
-		wsi->user_space_externally_allocated = 1;
-		wsi->user_space = i->userdata;
-	}
-
-	if (local) {
-		lwsl_info("%s: protocol binding to %s\n", __func__, local);
-		p = lws_vhost_name_to_protocol(wsi->vhost, local);
-		if (p)
-			lws_bind_protocol(wsi, p, __func__);
-	}
-
-	/*
-	 * PHASE 5: handle external user_space now, generic alloc is done in
-	 * role finalization
-	 */
-
-	if (!wsi->user_space && i->userdata) {
-		wsi->user_space_externally_allocated = 1;
-		wsi->user_space = i->userdata;
-	}
-
-#if defined(LWS_WITH_TLS)
-	wsi->tls.use_ssl = i->ssl_connection;
-#else
-	if (i->ssl_connection & LCCSCF_USE_SSL) {
-		lwsl_err("%s: lws not configured for tls\n", __func__);
-		goto bail;
-	}
-#endif
-
-	/*
-	 * PHASE 6: stash the things from connect_info that we can't process
-	 * right now, eg, if http binding, without an ah.  If h1 and no ah, we
-	 * will go on the ah waiting list and process those things later (after
-	 * the connect_info and maybe the things pointed to have gone out of
-	 * scope)
-	 *
-	 * However these things are stashed in a generic way at this point,
-	 * with no relationship to http or ah
-	 */
-
-	wsi->stash = lws_zalloc(sizeof(*wsi->stash), "client stash");
-	if (!wsi->stash) {
-		lwsl_err("%s: OOM\n", __func__);
-		goto bail1;
-	}
-
-	wsi->stash->address = lws_strdup(i->address);
-	wsi->stash->path = lws_strdup(i->path);
-	wsi->stash->host = lws_strdup(i->host);
-
-	if (!wsi->stash->address || !wsi->stash->path || !wsi->stash->host)
-		goto bail1;
-
-	if (i->origin) {
-		wsi->stash->origin = lws_strdup(i->origin);
-		if (!wsi->stash->origin)
-			goto bail1;
-	}
-	if (i->protocol) {
-		wsi->stash->protocol = lws_strdup(i->protocol);
-		if (!wsi->stash->protocol)
-			goto bail1;
-	}
-	if (i->method) {
-		wsi->stash->method = lws_strdup(i->method);
-		if (!wsi->stash->method)
-			goto bail1;
-	}
-	if (i->iface) {
-		wsi->stash->iface = lws_strdup(i->iface);
-		if (!wsi->stash->iface)
-			goto bail1;
-	}
-	if (i->alpn) {
-		wsi->stash->alpn = lws_strdup(i->alpn);
-		if (!wsi->stash->alpn)
-			goto bail1;
-	}
-
-	/*
-	 * at this point user callbacks like
-	 * LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER will be interested to
-	 * know the parent... eg for proxying we can grab extra headers from
-	 * the parent's incoming ah and add them to the child client handshake
-	 */
-
-	if (i->parent_wsi) {
-		lwsl_info("%s: created child %p of parent %p\n", __func__,
-			  wsi, i->parent_wsi);
-		wsi->parent = i->parent_wsi;
-		safe = wsi->sibling_list = i->parent_wsi->child_list;
-		i->parent_wsi->child_list = wsi;
-	}
-
-	/*
-	 * PHASE 7: Do any role-specific finalization processing.  We can still
-	 * see important info things via wsi->stash
-	 */
-
-	if (wsi->role_ops->client_bind) {
-		int n = wsi->role_ops->client_bind(wsi, NULL);
-
-		if (n && i->parent_wsi) {
-			/* unpick from parent */
-
-			i->parent_wsi->child_list = safe;
-		}
-
-		if (n < 0)
-			/* we didn't survive, wsi is freed */
-			goto bail2;
-
-		if (n)
-			/* something else failed, wsi needs freeing */
-			goto bail;
-	}
-
-	/* let the caller's optional wsi storage have the wsi we created */
-
-	if (i->pwsi)
-		*i->pwsi = wsi;
-
-
-#if defined(LWS_WITH_HUBBUB)
-	if (i->uri_replace_to)
-		wsi->http.rw = lws_rewrite_create(wsi, html_parser_cb,
-					     i->uri_replace_from,
-					     i->uri_replace_to);
-#endif
-
-	return wsi;
-
-bail1:
-	lws_client_stash_destroy(wsi);
-
-bail:
-	lws_free(wsi);
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-bail2:
-#endif
-	if (i->pwsi)
-		*i->pwsi = NULL;
-
-	return NULL;
-}
diff --git a/thirdparty/libwebsockets/lib/core/dummy-callback.c b/thirdparty/libwebsockets/lib/core/dummy-callback.c
deleted file mode 100644
index 8fd18be9c5..0000000000
--- a/thirdparty/libwebsockets/lib/core/dummy-callback.c
+++ /dev/null
@@ -1,611 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#include "core/private.h"
-
-#if defined(LWS_WITH_HTTP_PROXY)
-static int
-proxy_header(struct lws *wsi, struct lws *par, unsigned char *temp,
-	     int temp_len, int index, unsigned char **p, unsigned char *end)
-{
-	int n = lws_hdr_total_length(par, index);
-
-	if (n < 1) {
-		lwsl_debug("%s: no index %d:\n", __func__, index);
-		return 0;
-	}
-
-	if (lws_hdr_copy(par, (char *)temp, temp_len, index) < 0)
-		return -1;
-
-	lwsl_debug("%s: index %d: %s\n", __func__, index, (char *)temp);
-
-	if (lws_add_http_header_by_token(wsi, index, temp, n, p, end))
-		return -1;
-
-	return 0;
-}
-
-static int
-stream_close(struct lws *wsi)
-{
-	char buf[LWS_PRE + 6], *out = buf + LWS_PRE;
-
-	if (wsi->http.did_stream_close)
-		return 0;
-
-	wsi->http.did_stream_close = 1;
-
-	if (wsi->http2_substream) {
-		if (lws_write(wsi, (unsigned char *)buf + LWS_PRE, 0,
-			      LWS_WRITE_HTTP_FINAL) < 0) {
-			lwsl_info("%s: COMPL_CLIENT_HTTP: h2 fin wr failed\n",
-				  __func__);
-
-			return -1;
-		}
-	} else {
-		*out++ = '0';
-		*out++ = '\x0d';
-		*out++ = '\x0a';
-		*out++ = '\x0d';
-		*out++ = '\x0a';
-
-		if (lws_write(wsi, (unsigned char *)buf + LWS_PRE, 5,
-			      LWS_WRITE_HTTP_FINAL) < 0) {
-			lwsl_err("%s: COMPL_CLIENT_HTTP: "
-				 "h2 final write failed\n", __func__);
-
-			return -1;
-		}
-	}
-
-	return 0;
-}
-
-#endif
-
-LWS_VISIBLE int
-lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
-			void *user, void *in, size_t len)
-{
-	struct lws_ssl_info *si;
-#ifdef LWS_WITH_CGI
-	struct lws_cgi_args *args;
-#endif
-#if defined(LWS_WITH_CGI) || defined(LWS_WITH_HTTP_PROXY)
-	char buf[8192];
-	int n;
-#endif
-#if defined(LWS_WITH_HTTP_PROXY)
-	unsigned char **p, *end;
-	struct lws *parent;
-#endif
-
-	switch (reason) {
-#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
-	case LWS_CALLBACK_HTTP:
-#ifndef LWS_NO_SERVER
-		if (lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND, NULL))
-			return -1;
-
-		if (lws_http_transaction_completed(wsi))
-#endif
-			return -1;
-		break;
-#if !defined(LWS_NO_SERVER)
-	case LWS_CALLBACK_HTTP_BODY_COMPLETION:
-	case LWS_CALLBACK_HTTP_FILE_COMPLETION:
-		if (lws_http_transaction_completed(wsi))
-			return -1;
-		break;
-#endif
-
-	case LWS_CALLBACK_HTTP_WRITEABLE:
-#ifdef LWS_WITH_CGI
-		if (wsi->reason_bf & (LWS_CB_REASON_AUX_BF__CGI_HEADERS |
-				      LWS_CB_REASON_AUX_BF__CGI)) {
-			n = lws_cgi_write_split_stdout_headers(wsi);
-			if (n < 0) {
-				lwsl_debug("AUX_BF__CGI forcing close\n");
-				return -1;
-			}
-			if (!n)
-				lws_rx_flow_control(
-					wsi->http.cgi->stdwsi[LWS_STDOUT], 1);
-
-			if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__CGI_HEADERS)
-				wsi->reason_bf &=
-					~LWS_CB_REASON_AUX_BF__CGI_HEADERS;
-			else
-				wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__CGI;
-
-			if (wsi->http.cgi && wsi->http.cgi->cgi_transaction_over)
-				return -1;
-			break;
-		}
-
-		if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__CGI_CHUNK_END) {
-			if (!wsi->http2_substream) {
-				memcpy(buf + LWS_PRE, "0\x0d\x0a\x0d\x0a", 5);
-				lwsl_debug("writing chunk term and exiting\n");
-				n = lws_write(wsi, (unsigned char *)buf +
-						   LWS_PRE, 5, LWS_WRITE_HTTP);
-			} else
-				n = lws_write(wsi, (unsigned char *)buf +
-						   LWS_PRE, 0,
-						   LWS_WRITE_HTTP_FINAL);
-
-			/* always close after sending it */
-			return -1;
-		}
-#endif
-#if defined(LWS_WITH_HTTP_PROXY)
-
-		if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__PROXY_HEADERS) {
-
-			wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__PROXY_HEADERS;
-
-			lwsl_debug("%s: %p: issuing proxy headers\n",
-				    __func__, wsi);
-			n = lws_write(wsi, wsi->http.pending_return_headers +
-					   LWS_PRE,
-				      wsi->http.pending_return_headers_len,
-				      LWS_WRITE_HTTP_HEADERS);
-
-			lws_free_set_NULL(wsi->http.pending_return_headers);
-
-			if (n < 0) {
-				lwsl_err("%s: EST_CLIENT_HTTP: write failed\n",
-					 __func__);
-				return -1;
-			}
-			lws_callback_on_writable(wsi);
-			break;
-		}
-
-		if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__PROXY) {
-			char *px = buf + LWS_PRE;
-			int lenx = sizeof(buf) - LWS_PRE - 32;
-
-			/*
-			 * our sink is writeable and our source has something
-			 * to read.  So read a lump of source material of
-			 * suitable size to send or what's available, whichever
-			 * is the smaller.
-			 */
-			wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__PROXY;
-			if (!lws_get_child(wsi))
-				break;
-
-			/* this causes LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ */
-			if (lws_http_client_read(lws_get_child(wsi), &px,
-						 &lenx) < 0) {
-				lwsl_info("%s: LWS_CB_REASON_AUX_BF__PROXY: "
-					   "client closed\n", __func__);
-
-				stream_close(wsi);
-
-				return -1;
-			}
-			break;
-		}
-
-		if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__PROXY_TRANS_END) {
-			lwsl_info("%s: LWS_CB_REASON_AUX_BF__PROXY_TRANS_END\n",
-				   __func__);
-
-			wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__PROXY_TRANS_END;
-
-			if (stream_close(wsi))
-				return -1;
-
-			if (lws_http_transaction_completed(wsi))
-				return -1;
-		}
-#endif
-		break;
-
-#if defined(LWS_WITH_HTTP_PROXY)
-	case LWS_CALLBACK_RECEIVE_CLIENT_HTTP:
-		assert(lws_get_parent(wsi));
-		if (!lws_get_parent(wsi))
-			break;
-		lws_get_parent(wsi)->reason_bf |= LWS_CB_REASON_AUX_BF__PROXY;
-		lws_callback_on_writable(lws_get_parent(wsi));
-		break;
-
-	case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ: {
-		char *out = buf + LWS_PRE;
-
-		assert(lws_get_parent(wsi));
-
-		if (wsi->http.proxy_parent_chunked) {
-
-			if (len > sizeof(buf) - LWS_PRE - 16) {
-				lwsl_err("oversize buf %d %d\n", (int)len,
-						(int)sizeof(buf) - LWS_PRE - 16);
-				return -1;
-			}
-
-			/*
-			 * this only needs dealing with on http/1.1 to allow
-			 * pipelining
-			 */
-			n = lws_snprintf(out, 14, "%X\x0d\x0a", (int)len);
-			out += n;
-			memcpy(out, in, len);
-			out += len;
-			*out++ = '\x0d';
-			*out++ = '\x0a';
-
-			n = lws_write(lws_get_parent(wsi),
-				      (unsigned char *)buf + LWS_PRE,
-				      len + n + 2, LWS_WRITE_HTTP);
-		} else
-			n = lws_write(lws_get_parent(wsi), (unsigned char *)in,
-				      len, LWS_WRITE_HTTP);
-		if (n < 0)
-			return -1;
-		break; }
-
-
-	/* this handles the proxy case... */
-	case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: {
-		unsigned char *start, *p, *end;
-
-		/*
-		 * We want to proxy these headers, but we are being called
-		 * at the point the onward client was established, which is
-		 * unrelated to the state or writability of our proxy
-		 * connection.
-		 *
-		 * Therefore produce the headers using the onward client ah
-		 * while we have it, and stick them on the output buflist to be
-		 * written on the proxy connection as soon as convenient.
-		 */
-
-		parent = lws_get_parent(wsi);
-
-		if (!parent)
-			return 0;
-
-		start = p = (unsigned char *)buf + LWS_PRE;
-		end = p + sizeof(buf) - LWS_PRE - 256;
-
-		if (lws_add_http_header_status(lws_get_parent(wsi),
-				lws_http_client_http_response(wsi), &p, end))
-			return 1;
-
-		/*
-		 * copy these headers from the client connection to the parent
-		 */
-
-		proxy_header(parent, wsi, end, 256,
-				WSI_TOKEN_HTTP_CONTENT_LENGTH, &p, end);
-		proxy_header(parent, wsi, end, 256,
-				WSI_TOKEN_HTTP_CONTENT_TYPE, &p, end);
-		proxy_header(parent, wsi, end, 256,
-				WSI_TOKEN_HTTP_ETAG, &p, end);
-		proxy_header(parent, wsi, end, 256,
-				WSI_TOKEN_HTTP_ACCEPT_LANGUAGE, &p, end);
-		proxy_header(parent, wsi, end, 256,
-				WSI_TOKEN_HTTP_CONTENT_ENCODING, &p, end);
-		proxy_header(parent, wsi, end, 256,
-				WSI_TOKEN_HTTP_CACHE_CONTROL, &p, end);
-
-		if (!parent->http2_substream)
-			if (lws_add_http_header_by_token(parent,
-				WSI_TOKEN_CONNECTION, (unsigned char *)"close",
-				5, &p, end))
-			return -1;
-
-		/*
-		 * We proxy using h1 only atm, and strip any chunking so it
-		 * can go back out on h2 just fine.
-		 *
-		 * However if we are actually going out on h1, we need to add
-		 * our own chunking since we still don't know the size.
-		 */
-
-		if (!parent->http2_substream &&
-		    !lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_CONTENT_LENGTH)) {
-			lwsl_debug("downstream parent chunked\n");
-			if (lws_add_http_header_by_token(parent,
-					WSI_TOKEN_HTTP_TRANSFER_ENCODING,
-					(unsigned char *)"chunked", 7, &p, end))
-				return -1;
-
-			wsi->http.proxy_parent_chunked = 1;
-		}
-
-		if (lws_finalize_http_header(parent, &p, end))
-			return 1;
-
-		parent->http.pending_return_headers_len =
-					lws_ptr_diff(p, start);
-		parent->http.pending_return_headers =
-			lws_malloc(parent->http.pending_return_headers_len +
-				    LWS_PRE, "return proxy headers");
-		if (!parent->http.pending_return_headers)
-			return -1;
-
-		memcpy(parent->http.pending_return_headers + LWS_PRE, start,
-		       parent->http.pending_return_headers_len);
-
-		parent->reason_bf |= LWS_CB_REASON_AUX_BF__PROXY_HEADERS;
-
-		lwsl_debug("%s: LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: "
-			   "prepared headers\n", __func__);
-		lws_callback_on_writable(parent);
-
-		break; }
-
-	case LWS_CALLBACK_COMPLETED_CLIENT_HTTP:
-		lwsl_info("%s: COMPLETED_CLIENT_HTTP: %p (parent %p)\n",
-					__func__, wsi, lws_get_parent(wsi));
-		if (!lws_get_parent(wsi))
-			break;
-		lws_get_parent(wsi)->reason_bf |=
-				LWS_CB_REASON_AUX_BF__PROXY_TRANS_END;
-		lws_callback_on_writable(lws_get_parent(wsi));
-		break;
-
-	case LWS_CALLBACK_CLOSED_CLIENT_HTTP:
-		if (!lws_get_parent(wsi))
-			break;
-		lwsl_err("%s: LWS_CALLBACK_CLOSED_CLIENT_HTTP\n", __func__);
-		lws_set_timeout(lws_get_parent(wsi), LWS_TO_KILL_ASYNC,
-				PENDING_TIMEOUT_KILLED_BY_PROXY_CLIENT_CLOSE);
-		break;
-
-	case LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER:
-		parent = lws_get_parent(wsi);
-
-		if (!parent)
-			break;
-
-		p = (unsigned char **)in;
-		end = (*p) + len;
-
-		/*
-		 * copy these headers from the parent request to the client
-		 * connection's request
-		 */
-
-		proxy_header(wsi, parent, (unsigned char *)buf, sizeof(buf),
-				WSI_TOKEN_HOST, p, end);
-		proxy_header(wsi, parent, (unsigned char *)buf, sizeof(buf),
-				WSI_TOKEN_HTTP_ETAG, p, end);
-		proxy_header(wsi, parent, (unsigned char *)buf, sizeof(buf),
-				WSI_TOKEN_HTTP_IF_MODIFIED_SINCE, p, end);
-		proxy_header(wsi, parent, (unsigned char *)buf, sizeof(buf),
-				WSI_TOKEN_HTTP_ACCEPT_LANGUAGE, p, end);
-		proxy_header(wsi, parent, (unsigned char *)buf, sizeof(buf),
-				WSI_TOKEN_HTTP_ACCEPT_ENCODING, p, end);
-		proxy_header(wsi, parent, (unsigned char *)buf, sizeof(buf),
-				WSI_TOKEN_HTTP_CACHE_CONTROL, p, end);
-
-		buf[0] = '\0';
-		lws_get_peer_simple(parent, buf, sizeof(buf));
-		if (lws_add_http_header_by_token(wsi, WSI_TOKEN_X_FORWARDED_FOR,
-				(unsigned char *)buf, (int)strlen(buf), p, end))
-			return -1;
-
-		break;
-
-#endif
-
-#ifdef LWS_WITH_CGI
-	/* CGI IO events (POLLIN/OUT) appear here, our default policy is:
-	 *
-	 *  - POST data goes on subprocess stdin
-	 *  - subprocess stdout goes on http via writeable callback
-	 *  - subprocess stderr goes to the logs
-	 */
-	case LWS_CALLBACK_CGI:
-		args = (struct lws_cgi_args *)in;
-		switch (args->ch) { /* which of stdin/out/err ? */
-		case LWS_STDIN:
-			/* TBD stdin rx flow control */
-			break;
-		case LWS_STDOUT:
-			/* quench POLLIN on STDOUT until MASTER got writeable */
-			lws_rx_flow_control(args->stdwsi[LWS_STDOUT], 0);
-			wsi->reason_bf |= LWS_CB_REASON_AUX_BF__CGI;
-			/* when writing to MASTER would not block */
-			lws_callback_on_writable(wsi);
-			break;
-		case LWS_STDERR:
-			n = lws_get_socket_fd(args->stdwsi[LWS_STDERR]);
-			if (n < 0)
-				break;
-			n = read(n, buf, sizeof(buf) - 2);
-			if (n > 0) {
-				if (buf[n - 1] != '\n')
-					buf[n++] = '\n';
-				buf[n] = '\0';
-				lwsl_notice("CGI-stderr: %s\n", buf);
-			}
-			break;
-		}
-		break;
-
-	case LWS_CALLBACK_CGI_TERMINATED:
-		lwsl_debug("LWS_CALLBACK_CGI_TERMINATED: %d %" PRIu64 "\n",
-				wsi->http.cgi->explicitly_chunked,
-				(uint64_t)wsi->http.cgi->content_length);
-		if (!wsi->http.cgi->explicitly_chunked &&
-		    !wsi->http.cgi->content_length) {
-			/* send terminating chunk */
-			lwsl_debug("LWS_CALLBACK_CGI_TERMINATED: ending\n");
-			wsi->reason_bf |= LWS_CB_REASON_AUX_BF__CGI_CHUNK_END;
-			lws_callback_on_writable(wsi);
-			lws_set_timeout(wsi, PENDING_TIMEOUT_CGI, 3);
-			break;
-		}
-		return -1;
-
-	case LWS_CALLBACK_CGI_STDIN_DATA:  /* POST body for stdin */
-		args = (struct lws_cgi_args *)in;
-		args->data[args->len] = '\0';
-		if (!args->stdwsi[LWS_STDIN])
-			return -1;
-		n = lws_get_socket_fd(args->stdwsi[LWS_STDIN]);
-		if (n < 0)
-			return -1;
-
-#if defined(LWS_WITH_ZLIB)
-		if (wsi->http.cgi->gzip_inflate) {
-			/* gzip handling */
-
-			if (!wsi->http.cgi->gzip_init) {
-				lwsl_info("inflating gzip\n");
-
-				memset(&wsi->http.cgi->inflate, 0,
-				       sizeof(wsi->http.cgi->inflate));
-
-				if (inflateInit2(&wsi->http.cgi->inflate,
-						 16 + 15) != Z_OK) {
-					lwsl_err("%s: iniflateInit failed\n",
-						 __func__);
-					return -1;
-				}
-
-				wsi->http.cgi->gzip_init = 1;
-			}
-
-			wsi->http.cgi->inflate.next_in = args->data;
-			wsi->http.cgi->inflate.avail_in = args->len;
-
-			do {
-
-				wsi->http.cgi->inflate.next_out =
-						wsi->http.cgi->inflate_buf;
-				wsi->http.cgi->inflate.avail_out =
-					sizeof(wsi->http.cgi->inflate_buf);
-
-				n = inflate(&wsi->http.cgi->inflate,
-					    Z_SYNC_FLUSH);
-
-				switch (n) {
-				case Z_NEED_DICT:
-				case Z_STREAM_ERROR:
-				case Z_DATA_ERROR:
-				case Z_MEM_ERROR:
-					inflateEnd(&wsi->http.cgi->inflate);
-					wsi->http.cgi->gzip_init = 0;
-					lwsl_err("zlib error inflate %d\n", n);
-					return -1;
-				}
-
-				if (wsi->http.cgi->inflate.avail_out !=
-					   sizeof(wsi->http.cgi->inflate_buf)) {
-					int written;
-
-					written = write(args->stdwsi[LWS_STDIN]->desc.filefd,
-						wsi->http.cgi->inflate_buf,
-						sizeof(wsi->http.cgi->inflate_buf) -
-						wsi->http.cgi->inflate.avail_out);
-
-					if (written != (int)(
-						sizeof(wsi->http.cgi->inflate_buf) -
-						wsi->http.cgi->inflate.avail_out)) {
-						lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: "
-							"sent %d only %d went", n, args->len);
-					}
-
-					if (n == Z_STREAM_END) {
-						lwsl_err("gzip inflate end\n");
-						inflateEnd(&wsi->http.cgi->inflate);
-						wsi->http.cgi->gzip_init = 0;
-						break;
-					}
-
-				} else
-					break;
-
-				if (wsi->http.cgi->inflate.avail_out)
-					break;
-
-			} while (1);
-
-			return args->len;
-		}
-#endif /* WITH_ZLIB */
-
-		n = write(n, args->data, args->len);
-//		lwsl_hexdump_notice(args->data, args->len);
-		if (n < args->len)
-			lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: "
-				    "sent %d only %d went", n, args->len);
-
-		if (wsi->http.cgi->post_in_expected && args->stdwsi[LWS_STDIN] &&
-		    args->stdwsi[LWS_STDIN]->desc.filefd > 0) {
-			wsi->http.cgi->post_in_expected -= n;
-			if (!wsi->http.cgi->post_in_expected) {
-				struct lws *siwsi = args->stdwsi[LWS_STDIN];
-
-				lwsl_debug("%s: expected POST in end: "
-					   "closing stdin wsi %p, fd %d\n",
-					   __func__, siwsi, siwsi->desc.sockfd);
-
-				__remove_wsi_socket_from_fds(siwsi);
-				lwsi_set_state(siwsi, LRS_DEAD_SOCKET);
-				siwsi->socket_is_permanently_unusable = 1;
-				lws_remove_child_from_any_parent(siwsi);
-				if (wsi->context->event_loop_ops->
-							close_handle_manually) {
-					wsi->context->event_loop_ops->
-						close_handle_manually(siwsi);
-					siwsi->told_event_loop_closed = 1;
-				} else {
-					compatible_close(siwsi->desc.sockfd);
-					__lws_free_wsi(siwsi);
-				}
-				wsi->http.cgi->pipe_fds[LWS_STDIN][1] = -1;
-
-				args->stdwsi[LWS_STDIN] = NULL;
-			}
-		}
-
-		return n;
-#endif /* WITH_CGI */
-#endif /* ROLE_ H1 / H2 */
-	case LWS_CALLBACK_SSL_INFO:
-		si = in;
-
-		(void)si;
-		lwsl_notice("LWS_CALLBACK_SSL_INFO: where: 0x%x, ret: 0x%x\n",
-			    si->where, si->ret);
-		break;
-
-#if LWS_MAX_SMP > 1
-	case LWS_CALLBACK_GET_THREAD_ID:
-		return (int)(unsigned long long)pthread_self();
-#endif
-
-	default:
-		break;
-	}
-
-	return 0;
-}
diff --git a/thirdparty/libwebsockets/lib/plat/unix/private.h b/thirdparty/libwebsockets/lib/plat/unix/private.h
deleted file mode 100644
index 8583ee7bc8..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/private.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- *  Included from lib/core/private.h if no explicit platform
- */
-
-#include <fcntl.h>
-#include <strings.h>
-#include <unistd.h>
-
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <poll.h>
-#include <netdb.h>
-
-#ifndef __cplusplus
-#include <errno.h>
-#endif
-#include <netdb.h>
-#include <signal.h>
-
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/mman.h>
-#include <sys/un.h>
-
-#if defined(__APPLE__)
-#include <machine/endian.h>
-#endif
-#if defined(__FreeBSD__)
-#include <sys/endian.h>
-#endif
-#if defined(__linux__)
-#include <endian.h>
-#endif
-#if defined(__QNX__)
-	#include <gulliver.h>
-	#if defined(__LITTLEENDIAN__)
-		#define BYTE_ORDER __LITTLEENDIAN__
-		#define LITTLE_ENDIAN __LITTLEENDIAN__
-		#define BIG_ENDIAN 4321  /* to show byte order (taken from gcc); for suppres warning that BIG_ENDIAN is not defined. */
-	#endif
-	#if defined(__BIGENDIAN__)
-		#define BYTE_ORDER __BIGENDIAN__
-		#define LITTLE_ENDIAN 1234  /* to show byte order (taken from gcc); for suppres warning that LITTLE_ENDIAN is not defined. */
-		#define BIG_ENDIAN __BIGENDIAN__
-	#endif
-#endif
-
-#if defined(__sun) && defined(__GNUC__)
-
-#include <arpa/nameser_compat.h>
-
-#if !defined (BYTE_ORDER)
-#define BYTE_ORDER __BYTE_ORDER__
-#endif
-
-#if !defined(LITTLE_ENDIAN)
-#define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
-#endif
-
-#if !defined(BIG_ENDIAN)
-#define BIG_ENDIAN __ORDER_BIG_ENDIAN__
-#endif
-
-#endif /* sun + GNUC */
-
-#if !defined(BYTE_ORDER)
-#define BYTE_ORDER __BYTE_ORDER
-#endif
-#if !defined(LITTLE_ENDIAN)
-#define LITTLE_ENDIAN __LITTLE_ENDIAN
-#endif
-#if !defined(BIG_ENDIAN)
-#define BIG_ENDIAN __BIG_ENDIAN
-#endif
-
-#if defined(LWS_BUILTIN_GETIFADDRS)
-#include "./misc/getifaddrs.h"
-#else
-
-#if defined(__HAIKU__)
-#define _BSD_SOURCE
-#endif
-#include <ifaddrs.h>
-
-#endif
-
-#if defined (__sun) || defined(__HAIKU__) || defined(__QNX__)
-#include <syslog.h>
-#else
-#include <sys/syslog.h>
-#endif
-
-#ifdef __QNX__
-# include "netinet/tcp_var.h"
-# define TCP_KEEPINTVL TCPCTL_KEEPINTVL
-# define TCP_KEEPIDLE  TCPCTL_KEEPIDLE
-# define TCP_KEEPCNT   TCPCTL_KEEPCNT
-#endif
-
-#define LWS_ERRNO errno
-#define LWS_EAGAIN EAGAIN
-#define LWS_EALREADY EALREADY
-#define LWS_EINPROGRESS EINPROGRESS
-#define LWS_EINTR EINTR
-#define LWS_EISCONN EISCONN
-#define LWS_ENOTCONN ENOTCONN
-#define LWS_EWOULDBLOCK EWOULDBLOCK
-#define LWS_EADDRINUSE EADDRINUSE
-#define lws_set_blocking_send(wsi)
-#define LWS_SOCK_INVALID (-1)
-
-#define wsi_from_fd(A,B)  A->lws_lookup[B - lws_plat_socket_offset()]
-#define insert_wsi(A,B)   assert(A->lws_lookup[B->desc.sockfd - \
-				  lws_plat_socket_offset()] == 0); \
-				 A->lws_lookup[B->desc.sockfd - \
-				  lws_plat_socket_offset()] = B
-#define delete_from_fd(A,B) A->lws_lookup[B - lws_plat_socket_offset()] = 0
-
-#ifndef LWS_NO_FORK
-#ifdef LWS_HAVE_SYS_PRCTL_H
-#include <sys/prctl.h>
-#endif
-#endif
-
-#if defined (__ANDROID__)
- #include <syslog.h>
- #include <sys/resource.h>
-#endif
-
-#define compatible_close(x) close(x)
-#define lws_plat_socket_offset() (0)
-
-/*
- * Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag,
- * but happily have something equivalent in the SO_NOSIGPIPE flag.
- */
-#ifdef __APPLE__
-#define MSG_NOSIGNAL SO_NOSIGPIPE
-#endif
-
-/*
- * Solaris 11.X only supports POSIX 2001, MSG_NOSIGNAL appears in
- * POSIX 2008.
- */
-#ifdef __sun
- #define MSG_NOSIGNAL 0
-#endif
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-caps.c b/thirdparty/libwebsockets/lib/plat/unix/unix-caps.c
deleted file mode 100644
index 64aea61816..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-caps.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-#include <pwd.h>
-#include <grp.h>
-
-#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
-static void
-_lws_plat_apply_caps(int mode, const cap_value_t *cv, int count)
-{
-	cap_t caps;
-
-	if (!count)
-		return;
-
-	caps = cap_get_proc();
-
-	cap_set_flag(caps, mode, count, cv, CAP_SET);
-	cap_set_proc(caps);
-	prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);
-	cap_free(caps);
-}
-#endif
-
-void
-lws_plat_drop_app_privileges(const struct lws_context_creation_info *info)
-{
-	if (info->gid && info->gid != -1)
-		if (setgid(info->gid))
-			lwsl_warn("setgid: %s\n", strerror(LWS_ERRNO));
-
-	if (info->uid && info->uid != -1) {
-		struct passwd *p = getpwuid(info->uid);
-
-		if (p) {
-
-#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
-			_lws_plat_apply_caps(CAP_PERMITTED, info->caps,
-					     info->count_caps);
-#endif
-
-			initgroups(p->pw_name, info->gid);
-			if (setuid(info->uid))
-				lwsl_warn("setuid: %s\n", strerror(LWS_ERRNO));
-			else
-				lwsl_notice("Set privs to user '%s'\n",
-					    p->pw_name);
-
-#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
-			_lws_plat_apply_caps(CAP_EFFECTIVE, info->caps,
-					     info->count_caps);
-
-			if (info->count_caps) {
-				int n;
-				for (n = 0; n < info->count_caps; n++)
-					lwsl_notice("   RETAINING CAP %d\n",
-						    (int)info->caps[n]);
-			}
-#endif
-
-		} else
-			lwsl_warn("getpwuid: unable to find uid %d", info->uid);
-	}
-}
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-fds.c b/thirdparty/libwebsockets/lib/plat/unix/unix-fds.c
deleted file mode 100644
index 8a00bcff3f..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-fds.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-void
-lws_plat_insert_socket_into_fds(struct lws_context *context, struct lws *wsi)
-{
-	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
-
-	if (context->event_loop_ops->io)
-		context->event_loop_ops->io(wsi, LWS_EV_START | LWS_EV_READ);
-
-	pt->fds[pt->fds_count++].revents = 0;
-}
-
-void
-lws_plat_delete_socket_from_fds(struct lws_context *context,
-						struct lws *wsi, int m)
-{
-	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
-
-	if (context->event_loop_ops->io)
-		context->event_loop_ops->io(wsi,
-				LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE);
-
-	pt->fds_count--;
-}
-
-int
-lws_plat_change_pollfd(struct lws_context *context,
-		      struct lws *wsi, struct lws_pollfd *pfd)
-{
-	return 0;
-}
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-file.c b/thirdparty/libwebsockets/lib/plat/unix/unix-file.c
deleted file mode 100644
index bcdc213a89..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-file.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-#include <pwd.h>
-#include <grp.h>
-
-#ifdef LWS_WITH_PLUGINS
-#include <dlfcn.h>
-#endif
-#include <dirent.h>
-
-int lws_plat_apply_FD_CLOEXEC(int n)
-{
-	if (n == -1)
-		return 0;
-
-	return fcntl(n, F_SETFD, FD_CLOEXEC);
-}
-
-int
-lws_plat_write_file(const char *filename, void *buf, int len)
-{
-	int m, fd;
-
-	fd = lws_open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600);
-
-	if (fd == -1)
-		return 1;
-
-	m = write(fd, buf, len);
-	close(fd);
-
-	return m != len;
-}
-
-int
-lws_plat_read_file(const char *filename, void *buf, int len)
-{
-	int n, fd = lws_open(filename, O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	n = read(fd, buf, len);
-	close(fd);
-
-	return n;
-}
-
-lws_fop_fd_t
-_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
-		    const char *vpath, lws_fop_flags_t *flags)
-{
-	struct stat stat_buf;
-	int ret = lws_open(filename, (*flags) & LWS_FOP_FLAGS_MASK, 0664);
-	lws_fop_fd_t fop_fd;
-
-	if (ret < 0)
-		return NULL;
-
-	if (fstat(ret, &stat_buf) < 0)
-		goto bail;
-
-	fop_fd = malloc(sizeof(*fop_fd));
-	if (!fop_fd)
-		goto bail;
-
-	fop_fd->fops = fops;
-	fop_fd->flags = *flags;
-	fop_fd->fd = ret;
-	fop_fd->filesystem_priv = NULL; /* we don't use it */
-	fop_fd->len = stat_buf.st_size;
-	fop_fd->pos = 0;
-
-	return fop_fd;
-
-bail:
-	close(ret);
-	return NULL;
-}
-
-int
-_lws_plat_file_close(lws_fop_fd_t *fop_fd)
-{
-	int fd = (*fop_fd)->fd;
-
-	free(*fop_fd);
-	*fop_fd = NULL;
-
-	return close(fd);
-}
-
-lws_fileofs_t
-_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
-{
-	lws_fileofs_t r;
-
-	if (offset > 0 &&
-	    offset > (lws_fileofs_t)fop_fd->len - (lws_fileofs_t)fop_fd->pos)
-		offset = fop_fd->len - fop_fd->pos;
-
-	if ((lws_fileofs_t)fop_fd->pos + offset < 0)
-		offset = -fop_fd->pos;
-
-	r = lseek(fop_fd->fd, offset, SEEK_CUR);
-
-	if (r >= 0)
-		fop_fd->pos = r;
-	else
-		lwsl_err("error seeking from cur %ld, offset %ld\n",
-                        (long)fop_fd->pos, (long)offset);
-
-	return r;
-}
-
-int
-_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		    uint8_t *buf, lws_filepos_t len)
-{
-	long n;
-
-	n = read((int)fop_fd->fd, buf, len);
-	if (n == -1) {
-		*amount = 0;
-		return -1;
-	}
-	fop_fd->pos += n;
-	lwsl_debug("%s: read %ld of req %ld, pos %ld, len %ld\n", __func__, n,
-                  (long)len, (long)fop_fd->pos, (long)fop_fd->len);
-	*amount = n;
-
-	return 0;
-}
-
-int
-_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		     uint8_t *buf, lws_filepos_t len)
-{
-	long n;
-
-	n = write((int)fop_fd->fd, buf, len);
-	if (n == -1) {
-		*amount = 0;
-		return -1;
-	}
-
-	fop_fd->pos += n;
-	*amount = n;
-
-	return 0;
-}
-
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-init.c b/thirdparty/libwebsockets/lib/plat/unix/unix-init.c
deleted file mode 100644
index fa9a30e8d2..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-init.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-#include <pwd.h>
-#include <grp.h>
-
-#ifdef LWS_WITH_PLUGINS
-#include <dlfcn.h>
-#endif
-#include <dirent.h>
-
-int
-lws_plat_init(struct lws_context *context,
-	      const struct lws_context_creation_info *info)
-{
-	int fd;
-
-	/* master context has the global fd lookup array */
-	context->lws_lookup = lws_zalloc(sizeof(struct lws *) *
-					 context->max_fds, "lws_lookup");
-	if (context->lws_lookup == NULL) {
-		lwsl_err("OOM on lws_lookup array for %d connections\n",
-			 context->max_fds);
-		return 1;
-	}
-
-	lwsl_info(" mem: platform fd map: %5lu bytes\n",
-		    (unsigned long)(sizeof(struct lws *) * context->max_fds));
-	fd = lws_open(SYSTEM_RANDOM_FILEPATH, O_RDONLY);
-
-	context->fd_random = fd;
-	if (context->fd_random < 0) {
-		lwsl_err("Unable to open random device %s %d\n",
-			 SYSTEM_RANDOM_FILEPATH, context->fd_random);
-		return 1;
-	}
-
-#ifdef LWS_WITH_PLUGINS
-	if (info->plugin_dirs && (context->options & LWS_SERVER_OPTION_LIBUV))
-		lws_plat_plugins_init(context, info->plugin_dirs);
-#endif
-
-	return 0;
-}
-
-int
-lws_plat_context_early_init(void)
-{
-#if !defined(LWS_AVOID_SIGPIPE_IGN)
-	signal(SIGPIPE, SIG_IGN);
-#endif
-
-	return 0;
-}
-
-void
-lws_plat_context_early_destroy(struct lws_context *context)
-{
-}
-
-void
-lws_plat_context_late_destroy(struct lws_context *context)
-{
-#ifdef LWS_WITH_PLUGINS
-	if (context->plugin_list)
-		lws_plat_plugins_destroy(context);
-#endif
-
-	if (context->lws_lookup)
-		lws_free(context->lws_lookup);
-
-	if (!context->fd_random)
-		lwsl_err("ZERO RANDOM FD\n");
-	if (context->fd_random != LWS_INVALID_FILE)
-		close(context->fd_random);
-}
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-misc.c b/thirdparty/libwebsockets/lib/plat/unix/unix-misc.c
deleted file mode 100644
index d4b0f76658..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-misc.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-
-uint64_t
-lws_time_in_microseconds(void)
-{
-	struct timeval tv;
-
-	gettimeofday(&tv, NULL);
-	return ((unsigned long long)tv.tv_sec * 1000000LL) + tv.tv_usec;
-}
-
-LWS_VISIBLE int
-lws_get_random(struct lws_context *context, void *buf, int len)
-{
-	return read(context->fd_random, (char *)buf, len);
-}
-
-LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line)
-{
-	int syslog_level = LOG_DEBUG;
-
-	switch (level) {
-	case LLL_ERR:
-		syslog_level = LOG_ERR;
-		break;
-	case LLL_WARN:
-		syslog_level = LOG_WARNING;
-		break;
-	case LLL_NOTICE:
-		syslog_level = LOG_NOTICE;
-		break;
-	case LLL_INFO:
-		syslog_level = LOG_INFO;
-		break;
-	}
-	syslog(syslog_level, "%s", line);
-}
-
-
-int
-lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
-			int len)
-{
-	int n;
-
-	n = write(fd, buf, len);
-
-	fsync(fd);
-	if (lseek(fd, 0, SEEK_SET) < 0)
-		return 1;
-
-	return n != len;
-}
-
-
-int
-lws_plat_recommended_rsa_bits(void)
-{
-	return 4096;
-}
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-pipe.c b/thirdparty/libwebsockets/lib/plat/unix/unix-pipe.c
deleted file mode 100644
index 64ce253be6..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-pipe.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-
-int
-lws_plat_pipe_create(struct lws *wsi)
-{
-	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-
-#if defined(LWS_HAVE_PIPE2)
-	return pipe2(pt->dummy_pipe_fds, O_NONBLOCK);
-#else
-	return pipe(pt->dummy_pipe_fds);
-#endif
-}
-
-int
-lws_plat_pipe_signal(struct lws *wsi)
-{
-	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-	char buf = 0;
-	int n;
-
-	n = write(pt->dummy_pipe_fds[1], &buf, 1);
-
-	return n != 1;
-}
-
-void
-lws_plat_pipe_close(struct lws *wsi)
-{
-	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-
-	if (pt->dummy_pipe_fds[0] && pt->dummy_pipe_fds[0] != -1)
-		close(pt->dummy_pipe_fds[0]);
-	if (pt->dummy_pipe_fds[1] && pt->dummy_pipe_fds[1] != -1)
-		close(pt->dummy_pipe_fds[1]);
-
-	pt->dummy_pipe_fds[0] = pt->dummy_pipe_fds[1] = -1;
-}
-
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-service.c b/thirdparty/libwebsockets/lib/plat/unix/unix-service.c
deleted file mode 100644
index e61ef59959..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-service.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-int
-lws_poll_listen_fd(struct lws_pollfd *fd)
-{
-	return poll(fd, 1, 0);
-}
-
-LWS_EXTERN int
-_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
-{
-	volatile struct lws_foreign_thread_pollfd *ftp, *next;
-	volatile struct lws_context_per_thread *vpt;
-	struct lws_context_per_thread *pt;
-	int n = -1, m, c;
-
-	/* stay dead once we are dead */
-
-	if (!context || !context->vhost_list)
-		return 1;
-
-	pt = &context->pt[tsi];
-	vpt = (volatile struct lws_context_per_thread *)pt;
-
-	lws_stats_atomic_bump(context, pt, LWSSTATS_C_SERVICE_ENTRY, 1);
-
-	if (timeout_ms < 0)
-		goto faked_service;
-
-	if (context->event_loop_ops->run_pt)
-		context->event_loop_ops->run_pt(context, tsi);
-
-	if (!pt->service_tid_detected) {
-		struct lws _lws;
-
-		memset(&_lws, 0, sizeof(_lws));
-		_lws.context = context;
-
-		pt->service_tid  =
-			context->vhost_list->protocols[0].callback(
-			&_lws, LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
-		pt->service_tid_detected = 1;
-	}
-
-	/*
-	 * is there anybody with pending stuff that needs service forcing?
-	 */
-	if (!lws_service_adjust_timeout(context, 1, tsi)) {
-		/* -1 timeout means just do forced service */
-		_lws_plat_service_tsi(context, -1, pt->tid);
-		/* still somebody left who wants forced service? */
-		if (!lws_service_adjust_timeout(context, 1, pt->tid))
-			/* yes... come back again quickly */
-			timeout_ms = 0;
-	}
-
-	if (timeout_ms) {
-		lws_pt_lock(pt, __func__);
-		/* don't stay in poll wait longer than next hr timeout */
-		lws_usec_t t =  __lws_hrtimer_service(pt);
-		if ((lws_usec_t)timeout_ms * 1000 > t)
-			timeout_ms = t / 1000;
-		lws_pt_unlock(pt);
-	}
-
-	vpt->inside_poll = 1;
-	lws_memory_barrier();
-	n = poll(pt->fds, pt->fds_count, timeout_ms);
-	vpt->inside_poll = 0;
-	lws_memory_barrier();
-
-	/* Collision will be rare and brief.  Just spin until it completes */
-	while (vpt->foreign_spinlock)
-		;
-
-	/*
-	 * At this point we are not inside a foreign thread pollfd change,
-	 * and we have marked ourselves as outside the poll() wait.  So we
-	 * are the only guys that can modify the lws_foreign_thread_pollfd
-	 * list on the pt.  Drain the list and apply the changes to the
-	 * affected pollfds in the correct order.
-	 */
-
-	lws_pt_lock(pt, __func__);
-
-	ftp = vpt->foreign_pfd_list;
-	//lwsl_notice("cleared list %p\n", ftp);
-	while (ftp) {
-		struct lws *wsi;
-		struct lws_pollfd *pfd;
-
-		next = ftp->next;
-		pfd = &vpt->fds[ftp->fd_index];
-		if (lws_socket_is_valid(pfd->fd)) {
-			wsi = wsi_from_fd(context, pfd->fd);
-			if (wsi)
-				__lws_change_pollfd(wsi, ftp->_and, ftp->_or);
-		}
-		lws_free((void *)ftp);
-		ftp = next;
-	}
-	vpt->foreign_pfd_list = NULL;
-	lws_memory_barrier();
-
-	/* we have come out of a poll wait... check the hrtimer list */
-
-	__lws_hrtimer_service(pt);
-
-	lws_pt_unlock(pt);
-
-	m = 0;
-#if defined(LWS_ROLE_WS) && !defined(LWS_WITHOUT_EXTENSIONS)
-	m |= !!pt->ws.rx_draining_ext_list;
-#endif
-
-	if (pt->context->tls_ops &&
-	    pt->context->tls_ops->fake_POLLIN_for_buffered)
-		m |= pt->context->tls_ops->fake_POLLIN_for_buffered(pt);
-
-	if (!m && !n) { /* nothing to do */
-		lws_service_fd_tsi(context, NULL, tsi);
-		lws_service_do_ripe_rxflow(pt);
-
-		return 0;
-	}
-
-faked_service:
-	m = lws_service_flag_pending(context, tsi);
-	if (m)
-		c = -1; /* unknown limit */
-	else
-		if (n < 0) {
-			if (LWS_ERRNO != LWS_EINTR)
-				return -1;
-			return 0;
-		} else
-			c = n;
-
-	/* any socket with events to service? */
-	for (n = 0; n < (int)pt->fds_count && c; n++) {
-		if (!pt->fds[n].revents)
-			continue;
-
-		c--;
-
-		m = lws_service_fd_tsi(context, &pt->fds[n], tsi);
-		if (m < 0) {
-			lwsl_err("%s: lws_service_fd_tsi returned %d\n",
-				 __func__, m);
-			return -1;
-		}
-		/* if something closed, retry this slot */
-		if (m)
-			n--;
-	}
-
-	lws_service_do_ripe_rxflow(pt);
-
-	return 0;
-}
-
-int
-lws_plat_check_connection_error(struct lws *wsi)
-{
-	return 0;
-}
-
-int
-lws_plat_service(struct lws_context *context, int timeout_ms)
-{
-	return _lws_plat_service_tsi(context, timeout_ms, 0);
-}
-
-
-void
-lws_plat_service_periodic(struct lws_context *context)
-{
-	/* if our parent went down, don't linger around */
-	if (context->started_with_parent &&
-	    kill(context->started_with_parent, 0) < 0)
-		kill(getpid(), SIGTERM);
-}
diff --git a/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c b/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c
deleted file mode 100644
index 192dddee63..0000000000
--- a/thirdparty/libwebsockets/lib/plat/unix/unix-sockets.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#define _GNU_SOURCE
-#include "core/private.h"
-
-#include <pwd.h>
-#include <grp.h>
-
-
-
-int
-lws_send_pipe_choked(struct lws *wsi)
-{
-	struct lws_pollfd fds;
-	struct lws *wsi_eff;
-
-#if defined(LWS_WITH_HTTP2)
-	wsi_eff = lws_get_network_wsi(wsi);
-#else
-	wsi_eff = wsi;
-#endif
-
-	/* the fact we checked implies we avoided back-to-back writes */
-	wsi_eff->could_have_pending = 0;
-
-	/* treat the fact we got a truncated send pending as if we're choked */
-	if (lws_has_buffered_out(wsi_eff)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	    ||wsi->http.comp_ctx.buflist_comp ||
-	    wsi->http.comp_ctx.may_have_more
-#endif
-	    )
-		return 1;
-
-	fds.fd = wsi_eff->desc.sockfd;
-	fds.events = POLLOUT;
-	fds.revents = 0;
-
-	if (poll(&fds, 1, 0) != 1)
-		return 1;
-
-	if ((fds.revents & POLLOUT) == 0)
-		return 1;
-
-	/* okay to send another packet without blocking */
-
-	return 0;
-}
-
-
-int
-lws_plat_set_socket_options(struct lws_vhost *vhost, int fd, int unix_skt)
-{
-	int optval = 1;
-	socklen_t optlen = sizeof(optval);
-
-#ifdef LWS_WITH_IPV6
-	optval = 0;
-	setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (const void*)&optval, optlen);
-#endif
-
-#if defined(__APPLE__) || \
-    defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
-    defined(__NetBSD__) || \
-    defined(__OpenBSD__) || \
-    defined(__HAIKU__)
-	struct protoent *tcp_proto;
-#endif
-
-	(void)fcntl(fd, F_SETFD, FD_CLOEXEC);
-
-	if (!unix_skt && vhost->ka_time) {
-		/* enable keepalive on this socket */
-		optval = 1;
-		if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
-			       (const void *)&optval, optlen) < 0)
-			return 1;
-
-#if defined(__APPLE__) || \
-    defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
-    defined(__NetBSD__) || \
-    defined(__CYGWIN__) || defined(__OpenBSD__) || defined (__sun) || \
-    defined(__HAIKU__)
-
-		/*
-		 * didn't find a way to set these per-socket, need to
-		 * tune kernel systemwide values
-		 */
-#else
-		/* set the keepalive conditions we want on it too */
-
-#if defined(LWS_HAVE_TCP_USER_TIMEOUT)
-		optval = 1000 * (vhost->ka_time +
-				 (vhost->ka_interval * vhost->ka_probes));
-		if (setsockopt(fd, IPPROTO_TCP, TCP_USER_TIMEOUT,
-			       (const void *)&optval, optlen) < 0)
-			return 1;
-#endif
-		optval = vhost->ka_time;
-		if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE,
-			       (const void *)&optval, optlen) < 0)
-			return 1;
-
-		optval = vhost->ka_interval;
-		if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL,
-			       (const void *)&optval, optlen) < 0)
-			return 1;
-
-		optval = vhost->ka_probes;
-		if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT,
-			       (const void *)&optval, optlen) < 0)
-			return 1;
-#endif
-	}
-
-#if defined(SO_BINDTODEVICE)
-	if (!unix_skt && vhost->bind_iface && vhost->iface) {
-		lwsl_info("binding listen skt to %s using SO_BINDTODEVICE\n", vhost->iface);
-		if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, vhost->iface,
-				strlen(vhost->iface)) < 0) {
-			lwsl_warn("Failed to bind to device %s\n", vhost->iface);
-			return 1;
-		}
-	}
-#endif
-
-	/* Disable Nagle */
-	optval = 1;
-#if defined (__sun) || defined(__QNX__)
-	if (!unix_skt && setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
-		return 1;
-#elif !defined(__APPLE__) && \
-      !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) &&        \
-      !defined(__NetBSD__) && \
-      !defined(__OpenBSD__) && \
-      !defined(__HAIKU__)
-	if (!unix_skt && setsockopt(fd, SOL_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
-		return 1;
-#else
-	tcp_proto = getprotobyname("TCP");
-	if (!unix_skt && setsockopt(fd, tcp_proto->p_proto, TCP_NODELAY, &optval, optlen) < 0)
-		return 1;
-#endif
-
-	/* We are nonblocking... */
-	if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
-		return 1;
-
-	return 0;
-}
-
-
-/* cast a struct sockaddr_in6 * into addr for ipv6 */
-
-int
-lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
-		    size_t addrlen)
-{
-	int rc = LWS_ITOSA_NOT_EXIST;
-
-	struct ifaddrs *ifr;
-	struct ifaddrs *ifc;
-#ifdef LWS_WITH_IPV6
-	struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr;
-#endif
-
-	getifaddrs(&ifr);
-	for (ifc = ifr; ifc != NULL && rc; ifc = ifc->ifa_next) {
-		if (!ifc->ifa_addr)
-			continue;
-
-		lwsl_debug(" interface %s vs %s (fam %d) ipv6 %d\n",
-			   ifc->ifa_name, ifname,
-			   ifc->ifa_addr->sa_family, ipv6);
-
-		if (strcmp(ifc->ifa_name, ifname))
-			continue;
-
-		switch (ifc->ifa_addr->sa_family) {
-#if defined(AF_PACKET)
-		case AF_PACKET:
-			/* interface exists but is not usable */
-			rc = LWS_ITOSA_NOT_USABLE;
-			continue;
-#endif
-
-		case AF_INET:
-#ifdef LWS_WITH_IPV6
-			if (ipv6) {
-				/* map IPv4 to IPv6 */
-				bzero((char *)&addr6->sin6_addr,
-						sizeof(struct in6_addr));
-				addr6->sin6_addr.s6_addr[10] = 0xff;
-				addr6->sin6_addr.s6_addr[11] = 0xff;
-				memcpy(&addr6->sin6_addr.s6_addr[12],
-				       &((struct sockaddr_in *)ifc->ifa_addr)->sin_addr,
-							sizeof(struct in_addr));
-			} else
-#endif
-				memcpy(addr,
-					(struct sockaddr_in *)ifc->ifa_addr,
-						    sizeof(struct sockaddr_in));
-			break;
-#ifdef LWS_WITH_IPV6
-		case AF_INET6:
-			memcpy(&addr6->sin6_addr,
-			  &((struct sockaddr_in6 *)ifc->ifa_addr)->sin6_addr,
-						       sizeof(struct in6_addr));
-			break;
-#endif
-		default:
-			continue;
-		}
-		rc = LWS_ITOSA_USABLE;
-	}
-
-	freeifaddrs(ifr);
-
-	if (rc) {
-		/* check if bind to IP address */
-#ifdef LWS_WITH_IPV6
-		if (inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1)
-			rc = LWS_ITOSA_USABLE;
-		else
-#endif
-		if (inet_pton(AF_INET, ifname, &addr->sin_addr) == 1)
-			rc = LWS_ITOSA_USABLE;
-	}
-
-	return rc;
-}
-
-
-const char *
-lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
-{
-	return inet_ntop(af, src, dst, cnt);
-}
-
-int
-lws_plat_inet_pton(int af, const char *src, void *dst)
-{
-	return inet_pton(af, src, dst);
-}
diff --git a/thirdparty/libwebsockets/lib/plat/windows/private.h b/thirdparty/libwebsockets/lib/plat/windows/private.h
deleted file mode 100644
index 980028ce42..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/private.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- *
- *  Included from lib/core/private.h if defined(WIN32) || defined(_WIN32)
- */
-
- #ifndef WIN32_LEAN_AND_MEAN
-  #define WIN32_LEAN_AND_MEAN
- #endif
-
- #if (WINVER < 0x0501)
-  #undef WINVER
-  #undef _WIN32_WINNT
-  #define WINVER 0x0501
-  #define _WIN32_WINNT WINVER
- #endif
-
- #define LWS_NO_DAEMONIZE
- #define LWS_ERRNO WSAGetLastError()
- #define LWS_EAGAIN WSAEWOULDBLOCK
- #define LWS_EALREADY WSAEALREADY
- #define LWS_EINPROGRESS WSAEINPROGRESS
- #define LWS_EINTR WSAEINTR
- #define LWS_EISCONN WSAEISCONN
- #define LWS_ENOTCONN WSAENOTCONN
- #define LWS_EWOULDBLOCK WSAEWOULDBLOCK
- #define LWS_EADDRINUSE WSAEADDRINUSE
- #define MSG_NOSIGNAL 0
- #define SHUT_RDWR SD_BOTH
- #define SOL_TCP IPPROTO_TCP
- #define SHUT_WR SD_SEND
-
- #define compatible_close(fd) closesocket(fd)
- #define lws_set_blocking_send(wsi) wsi->sock_send_blocking = 1
- #define LWS_SOCK_INVALID (INVALID_SOCKET)
-
- #include <winsock2.h>
- #include <ws2tcpip.h>
- #include <windows.h>
- #include <tchar.h>
- #ifdef LWS_HAVE_IN6ADDR_H
-  #include <in6addr.h>
- #endif
- #include <mstcpip.h>
- #include <io.h>
-
- #if !defined(LWS_HAVE_ATOLL)
-  #if defined(LWS_HAVE__ATOI64)
-   #define atoll _atoi64
-  #else
-   #warning No atoll or _atoi64 available, using atoi
-   #define atoll atoi
-  #endif
- #endif
-
- #ifndef __func__
-  #define __func__ __FUNCTION__
- #endif
-
- #ifdef LWS_HAVE__VSNPRINTF
-  #define vsnprintf _vsnprintf
- #endif
-
-/* we don't have an implementation for this on windows... */
-int kill(int pid, int sig);
-int fork(void);
-#ifndef SIGINT
-#define SIGINT 2
-#endif
-
-#include <gettimeofday.h>
-
-#ifndef BIG_ENDIAN
- #define BIG_ENDIAN    4321  /* to show byte order (taken from gcc) */
-#endif
-#ifndef LITTLE_ENDIAN
- #define LITTLE_ENDIAN 1234
-#endif
-#ifndef BYTE_ORDER
- #define BYTE_ORDER LITTLE_ENDIAN
-#endif
-
-#undef __P
-#ifndef __P
- #if __STDC__
-  #define __P(protos) protos
- #else
-  #define __P(protos) ()
- #endif
-#endif
-
-#ifdef _WIN32
- #ifndef FD_HASHTABLE_MODULUS
-  #define FD_HASHTABLE_MODULUS 32
- #endif
-#endif
-
-#define lws_plat_socket_offset() (0)
-
-struct lws;
-struct lws_context;
-
-#define LWS_FD_HASH(fd) ((fd ^ (fd >> 8) ^ (fd >> 16)) % FD_HASHTABLE_MODULUS)
-struct lws_fd_hashtable {
-	struct lws **wsi;
-	int length;
-};
-
-
-#ifdef LWS_DLL
-#ifdef LWS_INTERNAL
-#define LWS_EXTERN extern __declspec(dllexport)
-#else
-#define LWS_EXTERN extern __declspec(dllimport)
-#endif
-#else
-#define LWS_EXTERN
-#endif
-
-typedef SOCKET lws_sockfd_type;
-typedef HANDLE lws_filefd_type;
-#define LWS_WIN32_HANDLE_TYPES
-
-LWS_EXTERN struct lws *
-wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd);
-
-LWS_EXTERN int
-insert_wsi(struct lws_context *context, struct lws *wsi);
-
-LWS_EXTERN int
-delete_from_fd(struct lws_context *context, lws_sockfd_type fd);
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-fds.c b/thirdparty/libwebsockets/lib/plat/windows/windows-fds.c
deleted file mode 100644
index 0d324e8f3a..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-fds.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-struct lws *
-wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd)
-{
-	int h = LWS_FD_HASH(fd);
-	int n = 0;
-
-	for (n = 0; n < context->fd_hashtable[h].length; n++)
-		if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd)
-			return context->fd_hashtable[h].wsi[n];
-
-	return NULL;
-}
-
-int
-insert_wsi(struct lws_context *context, struct lws *wsi)
-{
-	int h = LWS_FD_HASH(wsi->desc.sockfd);
-
-	if (context->fd_hashtable[h].length == (getdtablesize() - 1)) {
-		lwsl_err("hash table overflow\n");
-		return 1;
-	}
-
-	context->fd_hashtable[h].wsi[context->fd_hashtable[h].length++] = wsi;
-
-	return 0;
-}
-
-int
-delete_from_fd(struct lws_context *context, lws_sockfd_type fd)
-{
-	int h = LWS_FD_HASH(fd);
-	int n = 0;
-
-	for (n = 0; n < context->fd_hashtable[h].length; n++)
-		if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd) {
-			while (n < context->fd_hashtable[h].length) {
-				context->fd_hashtable[h].wsi[n] =
-					context->fd_hashtable[h].wsi[n + 1];
-				n++;
-			}
-			context->fd_hashtable[h].length--;
-
-			return 0;
-		}
-
-	lwsl_err("Failed to find fd %d requested for "
-		 "delete in hashtable\n", fd);
-	return 1;
-}
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-file.c b/thirdparty/libwebsockets/lib/plat/windows/windows-file.c
deleted file mode 100644
index eb73aab7f6..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-file.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-int lws_plat_apply_FD_CLOEXEC(int n)
-{
-	return 0;
-}
-
-lws_fop_fd_t
-_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
-		    const char *vpath, lws_fop_flags_t *flags)
-{
-	HANDLE ret;
-	WCHAR buf[MAX_PATH];
-	lws_fop_fd_t fop_fd;
-	FILE_STANDARD_INFO fInfo = {0};
-
-	MultiByteToWideChar(CP_UTF8, 0, filename, -1, buf, LWS_ARRAY_SIZE(buf));
-
-#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0602 // Windows 8 (minimum when UWP_ENABLED, but can be used in Windows builds)
-	CREATEFILE2_EXTENDED_PARAMETERS extParams = {0};
-	extParams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
-
-	if (((*flags) & 7) == _O_RDONLY) {
-		ret = CreateFile2(buf, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, &extParams);
-	} else {
-		ret = CreateFile2(buf, GENERIC_WRITE, 0, CREATE_ALWAYS, &extParams);
-	}
-#else
-	if (((*flags) & 7) == _O_RDONLY) {
-		ret = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ,
-			  NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-	} else {
-		ret = CreateFileW(buf, GENERIC_WRITE, 0, NULL,
-			  CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
-	}
-#endif
-
-	if (ret == LWS_INVALID_FILE)
-		goto bail;
-
-	fop_fd = malloc(sizeof(*fop_fd));
-	if (!fop_fd)
-		goto bail;
-
-	fop_fd->fops = fops;
-	fop_fd->fd = ret;
-	fop_fd->filesystem_priv = NULL; /* we don't use it */
-	fop_fd->flags = *flags;
-	fop_fd->len = 0;
-	if(GetFileInformationByHandleEx(ret, FileStandardInfo, &fInfo, sizeof(fInfo)))
-		fop_fd->len = fInfo.EndOfFile.QuadPart;
-
-	fop_fd->pos = 0;
-
-	return fop_fd;
-
-bail:
-	return NULL;
-}
-
-int
-_lws_plat_file_close(lws_fop_fd_t *fop_fd)
-{
-	HANDLE fd = (*fop_fd)->fd;
-
-	free(*fop_fd);
-	*fop_fd = NULL;
-
-	CloseHandle((HANDLE)fd);
-
-	return 0;
-}
-
-lws_fileofs_t
-_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
-{
-	LARGE_INTEGER l;
-
-	l.QuadPart = offset;
-	return SetFilePointerEx((HANDLE)fop_fd->fd, l, NULL, FILE_CURRENT);
-}
-
-int
-_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-		    uint8_t *buf, lws_filepos_t len)
-{
-	DWORD _amount;
-
-	if (!ReadFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) {
-		*amount = 0;
-
-		return 1;
-	}
-
-	fop_fd->pos += _amount;
-	*amount = (unsigned long)_amount;
-
-	return 0;
-}
-
-int
-_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
-			 uint8_t* buf, lws_filepos_t len)
-{
-	DWORD _amount;
-
-	if (!WriteFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) {
-		*amount = 0;
-
-		return 1;
-	}
-
-	fop_fd->pos += _amount;
-	*amount = (unsigned long)_amount;
-
-	return 0;
-}
-
-
-int
-lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
-			int len)
-{
-	int n;
-
-	n = write(fd, buf, len);
-
-	lseek(fd, 0, SEEK_SET);
-
-	return n != len;
-}
-
-int
-lws_plat_write_file(const char *filename, void *buf, int len)
-{
-	int m, fd;
-
-	fd = lws_open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600);
-
-	if (fd == -1)
-		return -1;
-
-	m = write(fd, buf, len);
-	close(fd);
-
-	return m != len;
-}
-
-int
-lws_plat_read_file(const char *filename, void *buf, int len)
-{
-	int n, fd = lws_open(filename, O_RDONLY);
-	if (fd == -1)
-		return -1;
-
-	n = read(fd, buf, len);
-	close(fd);
-
-	return n;
-}
-
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-init.c b/thirdparty/libwebsockets/lib/plat/windows/windows-init.c
deleted file mode 100644
index 8c4d9373f6..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-init.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-void
-lws_plat_drop_app_privileges(const struct lws_context_creation_info *info)
-{
-}
-
-int
-lws_plat_context_early_init(void)
-{
-	WORD wVersionRequested;
-	WSADATA wsaData;
-	int err;
-
-	/* Use the MAKEWORD(lowbyte, highbyte) macro from Windef.h */
-	wVersionRequested = MAKEWORD(2, 2);
-
-	err = WSAStartup(wVersionRequested, &wsaData);
-	if (!err)
-		return 0;
-	/*
-	 * Tell the user that we could not find a usable
-	 * Winsock DLL
-	 */
-	lwsl_err("WSAStartup failed with error: %d\n", err);
-
-	return 1;
-}
-
-int
-lws_plat_init(struct lws_context *context,
-	      const struct lws_context_creation_info *info)
-{
-	struct lws_context_per_thread *pt = &context->pt[0];
-	int i, n = context->count_threads;
-
-	for (i = 0; i < FD_HASHTABLE_MODULUS; i++) {
-		context->fd_hashtable[i].wsi =
-			lws_zalloc(sizeof(struct lws*) * context->max_fds,
-				   "win hashtable");
-
-		if (!context->fd_hashtable[i].wsi)
-			return -1;
-	}
-
-	while (n--) {
-		pt->fds_count = 0;
-		pt->events = WSACreateEvent(); /* the cancel event */
-
-		pt++;
-	}
-
-	context->fd_random = 0;
-
-#ifdef LWS_WITH_PLUGINS
-	if (info->plugin_dirs)
-		lws_plat_plugins_init(context, info->plugin_dirs);
-#endif
-
-	return 0;
-}
-
-void
-lws_plat_context_early_destroy(struct lws_context *context)
-{
-	struct lws_context_per_thread *pt = &context->pt[0];
-	int n = context->count_threads;
-
-	while (n--) {
-		WSACloseEvent(pt->events);
-		pt++;
-	}
-}
-
-void
-lws_plat_context_late_destroy(struct lws_context *context)
-{
-	int n;
-
-	for (n = 0; n < FD_HASHTABLE_MODULUS; n++) {
-		if (context->fd_hashtable[n].wsi)
-			lws_free(context->fd_hashtable[n].wsi);
-	}
-
-	WSACleanup();
-}
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-misc.c b/thirdparty/libwebsockets/lib/plat/windows/windows-misc.c
deleted file mode 100644
index 53cc19b6b9..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-misc.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-
-uint64_t
-lws_time_in_microseconds()
-{
-#ifndef DELTA_EPOCH_IN_MICROSECS
-#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
-#endif
-	FILETIME filetime;
-	ULARGE_INTEGER datetime;
-
-#ifdef _WIN32_WCE
-	GetCurrentFT(&filetime);
-#else
-	GetSystemTimeAsFileTime(&filetime);
-#endif
-
-	/*
-	 * As per Windows documentation for FILETIME, copy the resulting
-	 * FILETIME structure to a ULARGE_INTEGER structure using memcpy
-	 * (using memcpy instead of direct assignment can prevent alignment
-	 * faults on 64-bit Windows).
-	 */
-	memcpy(&datetime, &filetime, sizeof(datetime));
-
-	/* Windows file times are in 100s of nanoseconds. */
-	return (datetime.QuadPart / 10) - DELTA_EPOCH_IN_MICROSECS;
-}
-
-
-#ifdef _WIN32_WCE
-time_t time(time_t *t)
-{
-	time_t ret = lws_time_in_microseconds() / 1000000;
-
-	if(t != NULL)
-		*t = ret;
-
-	return ret;
-}
-#endif
-
-LWS_VISIBLE int
-lws_get_random(struct lws_context *context, void *buf, int len)
-{
-	int n;
-	char *p = (char *)buf;
-
-	for (n = 0; n < len; n++)
-		p[n] = (unsigned char)rand();
-
-	return n;
-}
-
-
-LWS_VISIBLE void
-lwsl_emit_syslog(int level, const char *line)
-{
-	lwsl_emit_stderr(level, line);
-}
-
-
-int kill(int pid, int sig)
-{
-	lwsl_err("Sorry Windows doesn't support kill().");
-	exit(0);
-}
-
-int fork(void)
-{
-	lwsl_err("Sorry Windows doesn't support fork().");
-	exit(0);
-}
-
-
-int
-lws_plat_recommended_rsa_bits(void)
-{
-	return 4096;
-}
-
-
-
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-pipe.c b/thirdparty/libwebsockets/lib/plat/windows/windows-pipe.c
deleted file mode 100644
index af2af1fa83..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-pipe.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-int
-lws_plat_pipe_create(struct lws *wsi)
-{
-	return 1;
-}
-
-int
-lws_plat_pipe_signal(struct lws *wsi)
-{
-	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-
-	WSASetEvent(pt->events); /* trigger the cancel event */
-
-	return 0;
-}
-
-void
-lws_plat_pipe_close(struct lws *wsi)
-{
-}
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-service.c b/thirdparty/libwebsockets/lib/plat/windows/windows-service.c
deleted file mode 100644
index a6adefbd3b..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-service.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-
-LWS_EXTERN int
-_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
-{
-	struct lws_context_per_thread *pt;
-	WSANETWORKEVENTS networkevents;
-	struct lws_pollfd *pfd;
-	struct lws *wsi;
-	unsigned int i;
-	DWORD ev;
-	int n;
-
-	/* stay dead once we are dead */
-	if (context == NULL || !context->vhost_list)
-		return 1;
-
-	pt = &context->pt[tsi];
-
-	if (!pt->service_tid_detected) {
-		struct lws _lws;
-
-		memset(&_lws, 0, sizeof(_lws));
-		_lws.context = context;
-
-		pt->service_tid = context->vhost_list->
-			protocols[0].callback(&_lws, LWS_CALLBACK_GET_THREAD_ID,
-						  NULL, NULL, 0);
-		pt->service_tid_detected = 1;
-	}
-
-	if (timeout_ms < 0) {
-		if (lws_service_flag_pending(context, tsi)) {
-			/* any socket with events to service? */
-			for (n = 0; n < (int)pt->fds_count; n++) {
-				int m;
-				if (!pt->fds[n].revents)
-					continue;
-
-				m = lws_service_fd_tsi(context, &pt->fds[n], tsi);
-				if (m < 0)
-					return -1;
-				/* if something closed, retry this slot */
-				if (m)
-					n--;
-			}
-		}
-		return 0;
-	}
-
-	if (context->event_loop_ops->run_pt)
-		context->event_loop_ops->run_pt(context, tsi);
-
-	for (i = 0; i < pt->fds_count; ++i) {
-		pfd = &pt->fds[i];
-
-		if (!(pfd->events & LWS_POLLOUT))
-			continue;
-
-		wsi = wsi_from_fd(context, pfd->fd);
-		if (!wsi || wsi->listener)
-			continue;
-		if (wsi->sock_send_blocking)
-			continue;
-		pfd->revents = LWS_POLLOUT;
-		n = lws_service_fd(context, pfd);
-		if (n < 0)
-			return -1;
-
-		/* Force WSAWaitForMultipleEvents() to check events and then return immediately. */
-		timeout_ms = 0;
-
-		/* if something closed, retry this slot */
-		if (n)
-			i--;
-	}
-
-	/*
-	 * is there anybody with pending stuff that needs service forcing?
-	 */
-	if (!lws_service_adjust_timeout(context, 1, tsi)) {
-		/* -1 timeout means just do forced service */
-		_lws_plat_service_tsi(context, -1, pt->tid);
-		/* still somebody left who wants forced service? */
-		if (!lws_service_adjust_timeout(context, 1, pt->tid))
-			/* yes... come back again quickly */
-			timeout_ms = 0;
-	}
-
-	if (timeout_ms) {
-		lws_usec_t t;
-
-		lws_pt_lock(pt, __func__);
-		/* don't stay in poll wait longer than next hr timeout */
-		t =  __lws_hrtimer_service(pt);
-
-		if ((lws_usec_t)timeout_ms * 1000 > t)
-			timeout_ms = (int)(t / 1000);
-		lws_pt_unlock(pt);
-	}
-
-	ev = WSAWaitForMultipleEvents(1, &pt->events, FALSE, timeout_ms, FALSE);
-	if (ev == WSA_WAIT_EVENT_0) {
-		unsigned int eIdx;
-
-		WSAResetEvent(pt->events);
-
-		if (pt->context->tls_ops &&
-		    pt->context->tls_ops->fake_POLLIN_for_buffered)
-			pt->context->tls_ops->fake_POLLIN_for_buffered(pt);
-
-		for (eIdx = 0; eIdx < pt->fds_count; ++eIdx) {
-			unsigned int err;
-
-			if (WSAEnumNetworkEvents(pt->fds[eIdx].fd, 0,
-					&networkevents) == SOCKET_ERROR) {
-				lwsl_err("WSAEnumNetworkEvents() failed "
-					 "with error %d\n", LWS_ERRNO);
-				return -1;
-			}
-
-			pfd = &pt->fds[eIdx];
-			pfd->revents = (short)networkevents.lNetworkEvents;
-
-			err = networkevents.iErrorCode[FD_CONNECT_BIT];
-
-			if ((networkevents.lNetworkEvents & FD_CONNECT) &&
-			     err && err != LWS_EALREADY &&
-			     err != LWS_EINPROGRESS && err != LWS_EWOULDBLOCK &&
-			     err != WSAEINVAL) {
-				lwsl_debug("Unable to connect errno=%d\n", err);
-				pfd->revents |= LWS_POLLHUP;
-			}
-
-			if (pfd->revents & LWS_POLLOUT) {
-				wsi = wsi_from_fd(context, pfd->fd);
-				if (wsi)
-					wsi->sock_send_blocking = 0;
-			}
-			 /* if something closed, retry this slot */
-			if (pfd->revents & LWS_POLLHUP)
-				--eIdx;
-
-			if (pfd->revents) {
-				recv(pfd->fd, NULL, 0, 0);
-				lws_service_fd_tsi(context, pfd, tsi);
-			}
-		}
-	}
-
-	if (ev == WSA_WAIT_TIMEOUT)
-		lws_service_fd(context, NULL);
-
-	return 0;
-}
-
-int
-lws_plat_service(struct lws_context *context, int timeout_ms)
-{
-	return _lws_plat_service_tsi(context, timeout_ms, 0);
-}
-
-
-
-void
-lws_plat_service_periodic(struct lws_context *context)
-{
-}
-
diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c b/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c
deleted file mode 100644
index 62a0a49846..0000000000
--- a/thirdparty/libwebsockets/lib/plat/windows/windows-sockets.c
+++ /dev/null
@@ -1,288 +0,0 @@
-#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
-#define _WINSOCK_DEPRECATED_NO_WARNINGS
-#endif
-#include "core/private.h"
-
-
-LWS_VISIBLE int
-lws_send_pipe_choked(struct lws *wsi)
-{	struct lws *wsi_eff;
-
-#if defined(LWS_WITH_HTTP2)
-	wsi_eff = lws_get_network_wsi(wsi);
-#else
-	wsi_eff = wsi;
-#endif
-	/* the fact we checked implies we avoided back-to-back writes */
-	wsi_eff->could_have_pending = 0;
-
-	/* treat the fact we got a truncated send pending as if we're choked */
-	if (lws_has_buffered_out(wsi_eff)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	    ||wsi->http.comp_ctx.buflist_comp ||
-	      wsi->http.comp_ctx.may_have_more
-#endif
-	)
-		return 1;
-
-	return (int)wsi_eff->sock_send_blocking;
-}
-
-int
-lws_poll_listen_fd(struct lws_pollfd *fd)
-{
-	fd_set readfds;
-	struct timeval tv = { 0, 0 };
-
-	assert((fd->events & LWS_POLLIN) == LWS_POLLIN);
-
-	FD_ZERO(&readfds);
-	FD_SET(fd->fd, &readfds);
-
-	return select(((int)fd->fd) + 1, &readfds, NULL, NULL, &tv);
-}
-
-int
-lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd,
-			    int unix_skt)
-{
-	int optval = 1;
-	int optlen = sizeof(optval);
-	u_long optl = 1;
-	DWORD dwBytesRet;
-	struct tcp_keepalive alive;
-	int protonbr;
-#ifndef _WIN32_WCE
-	struct protoent *tcp_proto;
-#endif
-
-#ifdef LWS_WITH_IPV6
-	optval = 0;
-	setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (const void*)&optval, optlen);
-#endif
-
-	if (vhost->ka_time) {
-		/* enable keepalive on this socket */
-		optval = 1;
-		if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
-			       (const char *)&optval, optlen) < 0)
-			return 1;
-
-		alive.onoff = TRUE;
-		alive.keepalivetime = vhost->ka_time;
-		alive.keepaliveinterval = vhost->ka_interval;
-
-		if (WSAIoctl(fd, SIO_KEEPALIVE_VALS, &alive, sizeof(alive),
-			     NULL, 0, &dwBytesRet, NULL, NULL))
-			return 1;
-	}
-
-	/* Disable Nagle */
-	optval = 1;
-#ifndef _WIN32_WCE
-	tcp_proto = getprotobyname("TCP");
-	if (!tcp_proto) {
-		lwsl_err("getprotobyname() failed with error %d\n", LWS_ERRNO);
-		return 1;
-	}
-	protonbr = tcp_proto->p_proto;
-#else
-	protonbr = 6;
-#endif
-
-	setsockopt(fd, protonbr, TCP_NODELAY, (const char *)&optval, optlen);
-
-	/* We are nonblocking... */
-	ioctlsocket(fd, FIONBIO, &optl);
-
-	return 0;
-}
-
-
-LWS_EXTERN int
-lws_interface_to_sa(int ipv6,
-		const char *ifname, struct sockaddr_in *addr, size_t addrlen)
-{
-#ifdef LWS_WITH_IPV6
-	struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr;
-
-	if (ipv6) {
-		if (lws_plat_inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1) {
-			return LWS_ITOSA_USABLE;
-		}
-	}
-#endif
-
-	long long address = inet_addr(ifname);
-
-	if (address == INADDR_NONE) {
-		struct hostent *entry = gethostbyname(ifname);
-		if (entry)
-			address = ((struct in_addr *)entry->h_addr_list[0])->s_addr;
-	}
-
-	if (address == INADDR_NONE)
-		return LWS_ITOSA_NOT_EXIST;
-
-	addr->sin_addr.s_addr = (unsigned long)(lws_intptr_t)address;
-
-	return LWS_ITOSA_USABLE;
-}
-
-void
-lws_plat_insert_socket_into_fds(struct lws_context *context, struct lws *wsi)
-{
-	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
-
-	pt->fds[pt->fds_count++].revents = 0;
-	WSAEventSelect(wsi->desc.sockfd, pt->events,
-			   LWS_POLLIN | LWS_POLLHUP | FD_CONNECT);
-}
-
-void
-lws_plat_delete_socket_from_fds(struct lws_context *context,
-						struct lws *wsi, int m)
-{
-	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
-
-	pt->fds_count--;
-}
-
-
-int
-lws_plat_check_connection_error(struct lws *wsi)
-{
-	int optVal;
-	int optLen = sizeof(int);
-
-	if (getsockopt(wsi->desc.sockfd, SOL_SOCKET, SO_ERROR,
-			   (char*)&optVal, &optLen) != SOCKET_ERROR && optVal &&
-		optVal != LWS_EALREADY && optVal != LWS_EINPROGRESS &&
-		optVal != LWS_EWOULDBLOCK && optVal != WSAEINVAL) {
-		   lwsl_debug("Connect failed SO_ERROR=%d\n", optVal);
-		   return 1;
-	}
-
-	return 0;
-}
-
-int
-lws_plat_change_pollfd(struct lws_context *context,
-			  struct lws *wsi, struct lws_pollfd *pfd)
-{
-	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
-	long networkevents = LWS_POLLHUP | FD_CONNECT;
-
-	if ((pfd->events & LWS_POLLIN))
-		networkevents |= LWS_POLLIN;
-
-	if ((pfd->events & LWS_POLLOUT))
-		networkevents |= LWS_POLLOUT;
-
-	if (WSAEventSelect(wsi->desc.sockfd, pt->events,
-			   networkevents) != SOCKET_ERROR)
-		return 0;
-
-	lwsl_err("WSAEventSelect() failed with error %d\n", LWS_ERRNO);
-
-	return 1;
-}
-
-const char *
-lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
-{
-	WCHAR *buffer;
-	DWORD bufferlen = cnt;
-	BOOL ok = FALSE;
-
-	buffer = lws_malloc(bufferlen * 2, "inet_ntop");
-	if (!buffer) {
-		lwsl_err("Out of memory\n");
-		return NULL;
-	}
-
-	if (af == AF_INET) {
-		struct sockaddr_in srcaddr;
-		bzero(&srcaddr, sizeof(srcaddr));
-		srcaddr.sin_family = AF_INET;
-		memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr));
-
-		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
-			ok = TRUE;
-#ifdef LWS_WITH_IPV6
-	} else if (af == AF_INET6) {
-		struct sockaddr_in6 srcaddr;
-		bzero(&srcaddr, sizeof(srcaddr));
-		srcaddr.sin6_family = AF_INET6;
-		memcpy(&(srcaddr.sin6_addr), src, sizeof(srcaddr.sin6_addr));
-
-		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
-			ok = TRUE;
-#endif
-	} else
-		lwsl_err("Unsupported type\n");
-
-	if (!ok) {
-		int rv = WSAGetLastError();
-		lwsl_err("WSAAddressToString() : %d\n", rv);
-	} else {
-		if (WideCharToMultiByte(CP_ACP, 0, buffer, bufferlen, dst, cnt, 0, NULL) <= 0)
-			ok = FALSE;
-	}
-
-	lws_free(buffer);
-	return ok ? dst : NULL;
-}
-
-int
-lws_plat_inet_pton(int af, const char *src, void *dst)
-{
-	WCHAR *buffer;
-	DWORD bufferlen = (int)strlen(src) + 1;
-	BOOL ok = FALSE;
-
-	buffer = lws_malloc(bufferlen * 2, "inet_pton");
-	if (!buffer) {
-		lwsl_err("Out of memory\n");
-		return -1;
-	}
-
-	if (MultiByteToWideChar(CP_ACP, 0, src, bufferlen, buffer, bufferlen) <= 0) {
-		lwsl_err("Failed to convert multi byte to wide char\n");
-		lws_free(buffer);
-		return -1;
-	}
-
-	if (af == AF_INET) {
-		struct sockaddr_in dstaddr;
-		int dstaddrlen = sizeof(dstaddr);
-		bzero(&dstaddr, sizeof(dstaddr));
-		dstaddr.sin_family = AF_INET;
-
-		if (!WSAStringToAddressW(buffer, af, 0, (struct sockaddr *) &dstaddr, &dstaddrlen)) {
-			ok = TRUE;
-			memcpy(dst, &dstaddr.sin_addr, sizeof(dstaddr.sin_addr));
-		}
-#ifdef LWS_WITH_IPV6
-	} else if (af == AF_INET6) {
-		struct sockaddr_in6 dstaddr;
-		int dstaddrlen = sizeof(dstaddr);
-		bzero(&dstaddr, sizeof(dstaddr));
-		dstaddr.sin6_family = AF_INET6;
-
-		if (!WSAStringToAddressW(buffer, af, 0, (struct sockaddr *) &dstaddr, &dstaddrlen)) {
-			ok = TRUE;
-			memcpy(dst, &dstaddr.sin6_addr, sizeof(dstaddr.sin6_addr));
-		}
-#endif
-	} else
-		lwsl_err("Unsupported type\n");
-
-	if (!ok) {
-		int rv = WSAGetLastError();
-		lwsl_err("WSAAddressToString() : %d\n", rv);
-	}
-
-	lws_free(buffer);
-	return ok ? 1 : -1;
-}
diff --git a/thirdparty/libwebsockets/lib/roles/raw-file/ops-raw-file.c b/thirdparty/libwebsockets/lib/roles/raw-file/ops-raw-file.c
deleted file mode 100644
index 075a2ee8b1..0000000000
--- a/thirdparty/libwebsockets/lib/roles/raw-file/ops-raw-file.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation:
- *  version 2.1 of the License.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-
-#include <core/private.h>
-
-static int
-rops_handle_POLLIN_raw_file(struct lws_context_per_thread *pt, struct lws *wsi,
-			    struct lws_pollfd *pollfd)
-{
-	int n;
-
-	if (pollfd->revents & LWS_POLLOUT) {
-		n = lws_callback_as_writeable(wsi);
-		if (lws_change_pollfd(wsi, LWS_POLLOUT, 0)) {
-			lwsl_info("failed at set pollfd\n");
-			return LWS_HPI_RET_WSI_ALREADY_DIED;
-		}
-		if (n)
-			return LWS_HPI_RET_PLEASE_CLOSE_ME;
-	}
-
-	if (pollfd->revents & LWS_POLLIN) {
-		if (user_callback_handle_rxflow(wsi->protocol->callback,
-						wsi, LWS_CALLBACK_RAW_RX_FILE,
-						wsi->user_space, NULL, 0)) {
-			lwsl_debug("raw rx callback closed it\n");
-			return LWS_HPI_RET_PLEASE_CLOSE_ME;
-		}
-	}
-
-	if (pollfd->revents & LWS_POLLHUP)
-		return LWS_HPI_RET_PLEASE_CLOSE_ME;
-
-	return LWS_HPI_RET_HANDLED;
-}
-
-#if !defined(LWS_NO_SERVER)
-static int
-rops_adoption_bind_raw_file(struct lws *wsi, int type, const char *vh_prot_name)
-{
-	/* no socket or http: it can only be a raw file */
-	if ((type & LWS_ADOPT_HTTP) || (type & LWS_ADOPT_SOCKET) ||
-	    (type & _LWS_ADOPT_FINISH))
-		return 0; /* no match */
-
-	lws_role_transition(wsi, 0, LRS_ESTABLISHED, &role_ops_raw_file);
-
-	if (!vh_prot_name)
-		wsi->protocol = &wsi->vhost->protocols[
-					wsi->vhost->default_protocol_index];
-
-	return 1; /* bound */
-}
-#endif
-
-struct lws_role_ops role_ops_raw_file = {
-	/* role name */			"raw-file",
-	/* alpn id */			NULL,
-	/* check_upgrades */		NULL,
-	/* init_context */		NULL,
-	/* init_vhost */		NULL,
-	/* destroy_vhost */		NULL,
-	/* periodic_checks */		NULL,
-	/* service_flag_pending */	NULL,
-	/* handle_POLLIN */		rops_handle_POLLIN_raw_file,
-	/* handle_POLLOUT */		NULL,
-	/* perform_user_POLLOUT */	NULL,
-	/* callback_on_writable */	NULL,
-	/* tx_credit */			NULL,
-	/* write_role_protocol */	NULL,
-	/* encapsulation_parent */	NULL,
-	/* alpn_negotiated */		NULL,
-	/* close_via_role_protocol */	NULL,
-	/* close_role */		NULL,
-	/* close_kill_connection */	NULL,
-	/* destroy_role */		NULL,
-#if !defined(LWS_NO_SERVER)
-	/* adoption_bind */		rops_adoption_bind_raw_file,
-#else
-					NULL,
-#endif
-	/* client_bind */		NULL,
-	/* writeable cb clnt, srv */	{ LWS_CALLBACK_RAW_WRITEABLE_FILE, 0 },
-	/* close cb clnt, srv */	{ LWS_CALLBACK_RAW_CLOSE_FILE, 0 },
-	/* protocol_bind cb c, srv */	{ LWS_CALLBACK_RAW_FILE_BIND_PROTOCOL,
-					  LWS_CALLBACK_RAW_FILE_BIND_PROTOCOL },
-	/* protocol_unbind cb c, srv */	{ LWS_CALLBACK_RAW_FILE_DROP_PROTOCOL,
-					  LWS_CALLBACK_RAW_FILE_DROP_PROTOCOL },
-	/* file_handle */		1,
-};
diff --git a/thirdparty/libwebsockets/libwebsockets.h b/thirdparty/libwebsockets/libwebsockets.h
new file mode 100644
index 0000000000..2c01696404
--- /dev/null
+++ b/thirdparty/libwebsockets/libwebsockets.h
@@ -0,0 +1,7346 @@
+/*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation:
+ *  version 2.1 of the License.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301  USA
+ */
+
+/** @file */
+
+#ifndef LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
+#define LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
+
+#ifdef __cplusplus
+#include <cstddef>
+#include <cstdarg>
+
+extern "C" {
+#else
+#include <stdarg.h>
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "lws_config.h"
+
+/*
+ * CARE: everything using cmake defines needs to be below here
+ */
+
+#if defined(LWS_HAS_INTPTR_T)
+#include <stdint.h>
+#define lws_intptr_t intptr_t
+#else
+typedef unsigned long long lws_intptr_t;
+#endif
+
+#if defined(WIN32) || defined(_WIN32)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <stddef.h>
+#include <basetsd.h>
+#include <io.h>
+#ifndef _WIN32_WCE
+#include <fcntl.h>
+#else
+#define _O_RDONLY	0x0000
+#define O_RDONLY	_O_RDONLY
+#endif
+
+#define LWS_INLINE __inline
+#define LWS_VISIBLE
+#define LWS_WARN_UNUSED_RESULT
+#define LWS_WARN_DEPRECATED
+#define LWS_FORMAT(string_index)
+
+#ifdef LWS_DLL
+#ifdef LWS_INTERNAL
+#define LWS_EXTERN extern __declspec(dllexport)
+#else
+#define LWS_EXTERN extern __declspec(dllimport)
+#endif
+#else
+#define LWS_EXTERN
+#endif
+
+#define LWS_INVALID_FILE INVALID_HANDLE_VALUE
+#define LWS_O_RDONLY _O_RDONLY
+#define LWS_O_WRONLY _O_WRONLY
+#define LWS_O_CREAT _O_CREAT
+#define LWS_O_TRUNC _O_TRUNC
+
+#ifndef __func__
+#define __func__ __FUNCTION__
+#endif
+
+#else /* NOT WIN32 */
+#include <unistd.h>
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+#include <sys/capability.h>
+#endif
+
+#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__QNX__) || defined(__OpenBSD__)
+#include <sys/socket.h>
+#include <netinet/in.h>
+#endif
+
+#define LWS_INLINE inline
+#define LWS_O_RDONLY O_RDONLY
+#define LWS_O_WRONLY O_WRONLY
+#define LWS_O_CREAT O_CREAT
+#define LWS_O_TRUNC O_TRUNC
+
+#if !defined(LWS_PLAT_OPTEE) && !defined(OPTEE_TA) && !defined(LWS_WITH_ESP32)
+#include <poll.h>
+#include <netdb.h>
+#define LWS_INVALID_FILE -1
+#else
+#define getdtablesize() (30)
+#if defined(LWS_WITH_ESP32)
+#define LWS_INVALID_FILE NULL
+#else
+#define LWS_INVALID_FILE NULL
+#endif
+#endif
+
+#if defined(__GNUC__)
+
+/* warn_unused_result attribute only supported by GCC 3.4 or later */
+#if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#define LWS_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define LWS_WARN_UNUSED_RESULT
+#endif
+
+#define LWS_VISIBLE __attribute__((visibility("default")))
+#define LWS_WARN_DEPRECATED __attribute__ ((deprecated))
+#define LWS_FORMAT(string_index) __attribute__ ((format(printf, string_index, string_index+1)))
+#else
+#define LWS_VISIBLE
+#define LWS_WARN_UNUSED_RESULT
+#define LWS_WARN_DEPRECATED
+#define LWS_FORMAT(string_index)
+#endif
+
+#if defined(__ANDROID__)
+#include <netinet/in.h>
+#include <unistd.h>
+#define getdtablesize() sysconf(_SC_OPEN_MAX)
+#endif
+
+#endif
+
+#if defined(LWS_WITH_LIBEV)
+#include <ev.h>
+#endif /* LWS_WITH_LIBEV */
+#ifdef LWS_WITH_LIBUV
+#include <uv.h>
+#ifdef LWS_HAVE_UV_VERSION_H
+#include <uv-version.h>
+#endif
+#ifdef LWS_HAVE_NEW_UV_VERSION_H
+#include <uv/version.h>
+#endif
+#endif /* LWS_WITH_LIBUV */
+#if defined(LWS_WITH_LIBEVENT)
+#include <event2/event.h>
+#endif /* LWS_WITH_LIBEVENT */
+
+#ifndef LWS_EXTERN
+#define LWS_EXTERN extern
+#endif
+
+#ifdef _WIN32
+#define random rand
+#else
+#if !defined(OPTEE_TA)
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+#endif
+
+#if defined(LWS_WITH_TLS)
+
+#ifdef USE_WOLFSSL
+#ifdef USE_OLD_CYASSL
+#ifdef _WIN32
+/*
+ * Include user-controlled settings for windows from
+ * <wolfssl-root>/IDE/WIN/user_settings.h
+ */
+#include <IDE/WIN/user_settings.h>
+#include <cyassl/ctaocrypt/settings.h>
+#else
+#include <cyassl/options.h>
+#endif
+#include <cyassl/openssl/ssl.h>
+#include <cyassl/error-ssl.h>
+
+#else
+#ifdef _WIN32
+/*
+ * Include user-controlled settings for windows from
+ * <wolfssl-root>/IDE/WIN/user_settings.h
+ */
+#include <IDE/WIN/user_settings.h>
+#include <wolfssl/wolfcrypt/settings.h>
+#else
+#include <wolfssl/options.h>
+#endif
+#include <wolfssl/openssl/ssl.h>
+#include <wolfssl/error-ssl.h>
+#endif /* not USE_OLD_CYASSL */
+#else
+#if defined(LWS_WITH_MBEDTLS)
+#if defined(LWS_WITH_ESP32)
+/* this filepath is passed to us but without quotes or <> */
+#undef MBEDTLS_CONFIG_FILE
+#define MBEDTLS_CONFIG_FILE <mbedtls/esp_config.h>
+#endif
+#include <mbedtls/ssl.h>
+#else
+#include <openssl/ssl.h>
+#if !defined(LWS_WITH_MBEDTLS)
+#include <openssl/err.h>
+#endif
+#endif
+#endif /* not USE_WOLFSSL */
+#endif
+
+/*
+ * Helpers for pthread mutex in user code... if lws is built for
+ * multiple service threads, these resolve to pthread mutex
+ * operations.  In the case LWS_MAX_SMP is 1 (the default), they
+ * are all NOPs and no pthread type or api is referenced.
+ */
+
+#if LWS_MAX_SMP > 1
+
+#include <pthread.h>
+
+#define lws_pthread_mutex(name) pthread_mutex_t name;
+
+static LWS_INLINE void
+lws_pthread_mutex_init(pthread_mutex_t *lock)
+{
+	pthread_mutex_init(lock, NULL);
+}
+
+static LWS_INLINE void
+lws_pthread_mutex_destroy(pthread_mutex_t *lock)
+{
+	pthread_mutex_destroy(lock);
+}
+
+static LWS_INLINE void
+lws_pthread_mutex_lock(pthread_mutex_t *lock)
+{
+	pthread_mutex_lock(lock);
+}
+
+static LWS_INLINE void
+lws_pthread_mutex_unlock(pthread_mutex_t *lock)
+{
+	pthread_mutex_unlock(lock);
+}
+
+#else
+#define lws_pthread_mutex(name)
+#define lws_pthread_mutex_init(_a)
+#define lws_pthread_mutex_destroy(_a)
+#define lws_pthread_mutex_lock(_a)
+#define lws_pthread_mutex_unlock(_a)
+#endif
+
+
+#define CONTEXT_PORT_NO_LISTEN -1
+#define CONTEXT_PORT_NO_LISTEN_SERVER -2
+
+/** \defgroup log Logging
+ *
+ * ##Logging
+ *
+ * Lws provides flexible and filterable logging facilities, which can be
+ * used inside lws and in user code.
+ *
+ * Log categories may be individually filtered bitwise, and directed to built-in
+ * sinks for syslog-compatible logging, or a user-defined function.
+ */
+///@{
+
+enum lws_log_levels {
+	LLL_ERR = 1 << 0,
+	LLL_WARN = 1 << 1,
+	LLL_NOTICE = 1 << 2,
+	LLL_INFO = 1 << 3,
+	LLL_DEBUG = 1 << 4,
+	LLL_PARSER = 1 << 5,
+	LLL_HEADER = 1 << 6,
+	LLL_EXT = 1 << 7,
+	LLL_CLIENT = 1 << 8,
+	LLL_LATENCY = 1 << 9,
+	LLL_USER = 1 << 10,
+
+	LLL_COUNT = 11 /* set to count of valid flags */
+};
+
+LWS_VISIBLE LWS_EXTERN void _lws_log(int filter, const char *format, ...) LWS_FORMAT(2);
+LWS_VISIBLE LWS_EXTERN void _lws_logv(int filter, const char *format, va_list vl);
+/**
+ * lwsl_timestamp: generate logging timestamp string
+ *
+ * \param level:	logging level
+ * \param p:		char * buffer to take timestamp
+ * \param len:	length of p
+ *
+ * returns length written in p
+ */
+LWS_VISIBLE LWS_EXTERN int
+lwsl_timestamp(int level, char *p, int len);
+
+/* these guys are unconditionally included */
+
+#define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
+#define lwsl_user(...) _lws_log(LLL_USER, __VA_ARGS__)
+
+#if !defined(LWS_WITH_NO_LOGS)
+/* notice and warn are usually included by being compiled in */
+#define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
+#define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
+#endif
+/*
+ *  weaker logging can be deselected by telling CMake to build in RELEASE mode
+ *  that gets rid of the overhead of checking while keeping _warn and _err
+ *  active
+ */
+
+#ifdef _DEBUG
+#if defined(LWS_WITH_NO_LOGS)
+/* notice, warn and log are always compiled in */
+#define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
+#define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
+#endif
+#define lwsl_info(...) _lws_log(LLL_INFO, __VA_ARGS__)
+#define lwsl_debug(...) _lws_log(LLL_DEBUG, __VA_ARGS__)
+#define lwsl_parser(...) _lws_log(LLL_PARSER, __VA_ARGS__)
+#define lwsl_header(...)  _lws_log(LLL_HEADER, __VA_ARGS__)
+#define lwsl_ext(...)  _lws_log(LLL_EXT, __VA_ARGS__)
+#define lwsl_client(...) _lws_log(LLL_CLIENT, __VA_ARGS__)
+#define lwsl_latency(...) _lws_log(LLL_LATENCY, __VA_ARGS__)
+
+#else /* no debug */
+#if defined(LWS_WITH_NO_LOGS)
+#define lwsl_warn(...) do {} while(0)
+#define lwsl_notice(...) do {} while(0)
+#endif
+#define lwsl_info(...) do {} while(0)
+#define lwsl_debug(...) do {} while(0)
+#define lwsl_parser(...) do {} while(0)
+#define lwsl_header(...) do {} while(0)
+#define lwsl_ext(...) do {} while(0)
+#define lwsl_client(...) do {} while(0)
+#define lwsl_latency(...) do {} while(0)
+
+#endif
+
+#define lwsl_hexdump_err(...) lwsl_hexdump_level(LLL_ERR, __VA_ARGS__)
+#define lwsl_hexdump_warn(...) lwsl_hexdump_level(LLL_WARN, __VA_ARGS__)
+#define lwsl_hexdump_notice(...) lwsl_hexdump_level(LLL_NOTICE, __VA_ARGS__)
+#define lwsl_hexdump_info(...) lwsl_hexdump_level(LLL_INFO, __VA_ARGS__)
+#define lwsl_hexdump_debug(...) lwsl_hexdump_level(LLL_DEBUG, __VA_ARGS__)
+
+/**
+ * lwsl_hexdump_level() - helper to hexdump a buffer at a selected debug level
+ *
+ * \param level: one of LLL_ constants
+ * \param vbuf: buffer start to dump
+ * \param len: length of buffer to dump
+ *
+ * If \p level is visible, does a nice hexdump -C style dump of \p vbuf for
+ * \p len bytes.  This can be extremely convenient while debugging.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lwsl_hexdump_level(int level, const void *vbuf, size_t len);
+
+/**
+ * lwsl_hexdump() - helper to hexdump a buffer (DEBUG builds only)
+ *
+ * \param buf: buffer start to dump
+ * \param len: length of buffer to dump
+ *
+ * Calls through to lwsl_hexdump_level(LLL_DEBUG, ... for compatability.
+ * It's better to use lwsl_hexdump_level(level, ... directly so you can control
+ * the visibility.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lwsl_hexdump(const void *buf, size_t len);
+
+/**
+ * lws_is_be() - returns nonzero if the platform is Big Endian
+ */
+static LWS_INLINE int lws_is_be(void) {
+	const int probe = ~0xff;
+
+	return *(const char *)&probe;
+}
+
+/**
+ * lws_set_log_level() - Set the logging bitfield
+ * \param level:	OR together the LLL_ debug contexts you want output from
+ * \param log_emit_function:	NULL to leave it as it is, or a user-supplied
+ *			function to perform log string emission instead of
+ *			the default stderr one.
+ *
+ *	log level defaults to "err", "warn" and "notice" contexts enabled and
+ *	emission on stderr.  If stderr is a tty (according to isatty()) then
+ *	the output is coloured according to the log level using ANSI escapes.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_set_log_level(int level,
+		  void (*log_emit_function)(int level, const char *line));
+
+/**
+ * lwsl_emit_syslog() - helper log emit function writes to system log
+ *
+ * \param level: one of LLL_ log level indexes
+ * \param line: log string
+ *
+ * You use this by passing the function pointer to lws_set_log_level(), to set
+ * it as the log emit function, it is not called directly.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lwsl_emit_syslog(int level, const char *line);
+
+/**
+ * lwsl_visible() - returns true if the log level should be printed
+ *
+ * \param level: one of LLL_ log level indexes
+ *
+ * This is useful if you have to do work to generate the log content, you
+ * can skip the work if the log level used to print it is not actually
+ * enabled at runtime.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lwsl_visible(int level);
+
+///@}
+
+
+#include <stddef.h>
+
+#ifndef lws_container_of
+#define lws_container_of(P,T,M)	((T *)((char *)(P) - offsetof(T, M)))
+#endif
+
+struct lws;
+
+typedef int64_t lws_usec_t;
+
+/* api change list for user code to test against */
+
+#define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_ARG
+
+/* the struct lws_protocols has the id field present */
+#define LWS_FEATURE_PROTOCOLS_HAS_ID_FIELD
+
+/* you can call lws_get_peer_write_allowance */
+#define LWS_FEATURE_PROTOCOLS_HAS_PEER_WRITE_ALLOWANCE
+
+/* extra parameter introduced in 917f43ab821 */
+#define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_LEN
+
+/* File operations stuff exists */
+#define LWS_FEATURE_FOPS
+
+
+#if defined(_WIN32)
+typedef SOCKET lws_sockfd_type;
+typedef HANDLE lws_filefd_type;
+
+struct lws_pollfd {
+	lws_sockfd_type fd; /**< file descriptor */
+	SHORT events; /**< which events to respond to */
+	SHORT revents; /**< which events happened */
+};
+#define LWS_POLLHUP (FD_CLOSE)
+#define LWS_POLLIN (FD_READ | FD_ACCEPT)
+#define LWS_POLLOUT (FD_WRITE)
+#else
+
+
+#if defined(LWS_WITH_ESP32)
+
+typedef int lws_sockfd_type;
+typedef int lws_filefd_type;
+
+struct pollfd {
+	lws_sockfd_type fd; /**< fd related to */
+	short events; /**< which POLL... events to respond to */
+	short revents; /**< which POLL... events occurred */
+};
+#define POLLIN		0x0001
+#define POLLPRI		0x0002
+#define POLLOUT		0x0004
+#define POLLERR		0x0008
+#define POLLHUP		0x0010
+#define POLLNVAL	0x0020
+
+#include <freertos/FreeRTOS.h>
+#include <freertos/event_groups.h>
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_system.h"
+#include "esp_event.h"
+#include "esp_event_loop.h"
+#include "nvs.h"
+#include "driver/gpio.h"
+#include "esp_spi_flash.h"
+#include "freertos/timers.h"
+
+#if !defined(CONFIG_FREERTOS_HZ)
+#define CONFIG_FREERTOS_HZ 100
+#endif
+
+typedef TimerHandle_t uv_timer_t;
+typedef void uv_cb_t(uv_timer_t *);
+typedef void * uv_handle_t;
+
+struct timer_mapping {
+	uv_cb_t *cb;
+	uv_timer_t *t;
+};
+
+#define UV_VERSION_MAJOR 1
+
+#define lws_uv_getloop(a, b) (NULL)
+
+static LWS_INLINE void uv_timer_init(void *l, uv_timer_t *t)
+{
+	(void)l;
+	*t = NULL;
+}
+
+extern void esp32_uvtimer_cb(TimerHandle_t t);
+
+static LWS_INLINE void uv_timer_start(uv_timer_t *t, uv_cb_t *cb, int first, int rep)
+{
+	struct timer_mapping *tm = (struct timer_mapping *)malloc(sizeof(*tm));
+
+	if (!tm)
+		return;
+
+	tm->t = t;
+	tm->cb = cb;
+
+	*t = xTimerCreate("x", pdMS_TO_TICKS(first), !!rep, tm,
+			  (TimerCallbackFunction_t)esp32_uvtimer_cb);
+	xTimerStart(*t, 0);
+}
+
+static LWS_INLINE void uv_timer_stop(uv_timer_t *t)
+{
+	xTimerStop(*t, 0);
+}
+
+static LWS_INLINE void uv_close(uv_handle_t *h, void *v)
+{
+	free(pvTimerGetTimerID((uv_timer_t)h));
+	xTimerDelete(*(uv_timer_t *)h, 0);
+}
+
+/* ESP32 helper declarations */
+
+#include <mdns.h>
+#include <esp_partition.h>
+
+#define LWS_PLUGIN_STATIC
+#define LWS_MAGIC_REBOOT_TYPE_ADS 0x50001ffc
+#define LWS_MAGIC_REBOOT_TYPE_REQ_FACTORY 0xb00bcafe
+#define LWS_MAGIC_REBOOT_TYPE_FORCED_FACTORY 0xfaceb00b
+#define LWS_MAGIC_REBOOT_TYPE_FORCED_FACTORY_BUTTON 0xf0cedfac
+
+
+/* user code provides these */
+
+extern void
+lws_esp32_identify_physical_device(void);
+
+/* lws-plat-esp32 provides these */
+
+typedef void (*lws_cb_scan_done)(uint16_t count, wifi_ap_record_t *recs, void *arg);
+
+enum genled_state {
+	LWSESP32_GENLED__INIT,
+	LWSESP32_GENLED__LOST_NETWORK,
+	LWSESP32_GENLED__NO_NETWORK,
+	LWSESP32_GENLED__CONN_AP,
+	LWSESP32_GENLED__GOT_IP,
+	LWSESP32_GENLED__OK,
+};
+
+struct lws_group_member {
+	struct lws_group_member *next;
+	uint64_t last_seen;
+	char model[16];
+	char role[16];
+	char host[32];
+	char mac[20];
+	int width, height;
+	struct ip4_addr addr;
+	struct ip6_addr addrv6;
+	uint8_t	flags;
+};
+
+#define LWS_SYSTEM_GROUP_MEMBER_ADD		1
+#define LWS_SYSTEM_GROUP_MEMBER_CHANGE		2
+#define LWS_SYSTEM_GROUP_MEMBER_REMOVE		3
+
+#define LWS_GROUP_FLAG_SELF 1
+
+struct lws_esp32 {
+	char sta_ip[16];
+	char sta_mask[16];
+	char sta_gw[16];
+	char serial[16];
+	char opts[16];
+	char model[16];
+	char group[16];
+	char role[16];
+	char ssid[4][64];
+	char password[4][64];
+	char active_ssid[64];
+	char access_pw[16];
+	char hostname[32];
+	char mac[20];
+	char le_dns[64];
+	char le_email[64];
+       	char region;
+       	char inet;
+	char conn_ap;
+
+	enum genled_state genled;
+	uint64_t genled_t;
+
+	lws_cb_scan_done scan_consumer;
+	void *scan_consumer_arg;
+	struct lws_group_member *first;
+	int extant_group_members;
+
+	char acme;
+	char upload;
+
+	volatile char button_is_down;
+};
+
+struct lws_esp32_image {
+	uint32_t romfs;
+	uint32_t romfs_len;
+	uint32_t json;
+	uint32_t json_len;
+};
+
+extern struct lws_esp32 lws_esp32;
+struct lws_vhost;
+
+extern esp_err_t
+lws_esp32_event_passthru(void *ctx, system_event_t *event);
+extern void
+lws_esp32_wlan_config(void);
+extern void
+lws_esp32_wlan_start_ap(void);
+extern void
+lws_esp32_wlan_start_station(void);
+struct lws_context_creation_info;
+extern void
+lws_esp32_set_creation_defaults(struct lws_context_creation_info *info);
+extern struct lws_context *
+lws_esp32_init(struct lws_context_creation_info *, struct lws_vhost **pvh);
+extern int
+lws_esp32_wlan_nvs_get(int retry);
+extern esp_err_t
+lws_nvs_set_str(nvs_handle handle, const char* key, const char* value);
+extern void
+lws_esp32_restart_guided(uint32_t type);
+extern const esp_partition_t *
+lws_esp_ota_get_boot_partition(void);
+extern int
+lws_esp32_get_image_info(const esp_partition_t *part, struct lws_esp32_image *i, char *json, int json_len);
+extern int
+lws_esp32_leds_network_indication(void);
+
+extern uint32_t lws_esp32_get_reboot_type(void);
+extern uint16_t lws_esp32_sine_interp(int n);
+
+/* required in external code by esp32 plat (may just return if no leds) */
+extern void lws_esp32_leds_timer_cb(TimerHandle_t th);
+#else
+typedef int lws_sockfd_type;
+typedef int lws_filefd_type;
+#endif
+
+#define lws_pollfd pollfd
+#define LWS_POLLHUP (POLLHUP|POLLERR)
+#define LWS_POLLIN (POLLIN)
+#define LWS_POLLOUT (POLLOUT)
+#endif
+
+
+#if (defined(WIN32) || defined(_WIN32)) && !defined(__MINGW32__)
+/* ... */
+#define ssize_t SSIZE_T
+#endif
+
+#if defined(WIN32) && defined(LWS_HAVE__STAT32I64)
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+
+#if defined(LWS_HAVE_STDINT_H)
+#include <stdint.h>
+#else
+#if defined(WIN32) || defined(_WIN32)
+/* !!! >:-[  */
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int16 uint16_t;
+typedef unsigned __int8 uint8_t;
+#else
+typedef unsigned int uint32_t;
+typedef unsigned short uint16_t;
+typedef unsigned char uint8_t;
+#endif
+#endif
+
+typedef unsigned long long lws_filepos_t;
+typedef long long lws_fileofs_t;
+typedef uint32_t lws_fop_flags_t;
+
+/** struct lws_pollargs - argument structure for all external poll related calls
+ * passed in via 'in' */
+struct lws_pollargs {
+	lws_sockfd_type fd;	/**< applicable socket descriptor */
+	int events;		/**< the new event mask */
+	int prev_events;	/**< the previous event mask */
+};
+
+struct lws_tokens;
+struct lws_token_limits;
+
+/*! \defgroup wsclose Websocket Close
+ *
+ * ##Websocket close frame control
+ *
+ * When we close a ws connection, we can send a reason code and a short
+ * UTF-8 description back with the close packet.
+ */
+///@{
+
+/*
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+/** enum lws_close_status - RFC6455 close status codes */
+enum lws_close_status {
+	LWS_CLOSE_STATUS_NOSTATUS				=    0,
+	LWS_CLOSE_STATUS_NORMAL					= 1000,
+	/**< 1000 indicates a normal closure, meaning that the purpose for
+      which the connection was established has been fulfilled. */
+	LWS_CLOSE_STATUS_GOINGAWAY				= 1001,
+	/**< 1001 indicates that an endpoint is "going away", such as a server
+      going down or a browser having navigated away from a page. */
+	LWS_CLOSE_STATUS_PROTOCOL_ERR				= 1002,
+	/**< 1002 indicates that an endpoint is terminating the connection due
+      to a protocol error. */
+	LWS_CLOSE_STATUS_UNACCEPTABLE_OPCODE			= 1003,
+	/**< 1003 indicates that an endpoint is terminating the connection
+      because it has received a type of data it cannot accept (e.g., an
+      endpoint that understands only text data MAY send this if it
+      receives a binary message). */
+	LWS_CLOSE_STATUS_RESERVED				= 1004,
+	/**< Reserved.  The specific meaning might be defined in the future. */
+	LWS_CLOSE_STATUS_NO_STATUS				= 1005,
+	/**< 1005 is a reserved value and MUST NOT be set as a status code in a
+      Close control frame by an endpoint.  It is designated for use in
+      applications expecting a status code to indicate that no status
+      code was actually present. */
+	LWS_CLOSE_STATUS_ABNORMAL_CLOSE				= 1006,
+	/**< 1006 is a reserved value and MUST NOT be set as a status code in a
+      Close control frame by an endpoint.  It is designated for use in
+      applications expecting a status code to indicate that the
+      connection was closed abnormally, e.g., without sending or
+      receiving a Close control frame. */
+	LWS_CLOSE_STATUS_INVALID_PAYLOAD			= 1007,
+	/**< 1007 indicates that an endpoint is terminating the connection
+      because it has received data within a message that was not
+      consistent with the type of the message (e.g., non-UTF-8 [RFC3629]
+      data within a text message). */
+	LWS_CLOSE_STATUS_POLICY_VIOLATION			= 1008,
+	/**< 1008 indicates that an endpoint is terminating the connection
+      because it has received a message that violates its policy.  This
+      is a generic status code that can be returned when there is no
+      other more suitable status code (e.g., 1003 or 1009) or if there
+      is a need to hide specific details about the policy. */
+	LWS_CLOSE_STATUS_MESSAGE_TOO_LARGE			= 1009,
+	/**< 1009 indicates that an endpoint is terminating the connection
+      because it has received a message that is too big for it to
+      process. */
+	LWS_CLOSE_STATUS_EXTENSION_REQUIRED			= 1010,
+	/**< 1010 indicates that an endpoint (client) is terminating the
+      connection because it has expected the server to negotiate one or
+      more extension, but the server didn't return them in the response
+      message of the WebSocket handshake.  The list of extensions that
+      are needed SHOULD appear in the /reason/ part of the Close frame.
+      Note that this status code is not used by the server, because it
+      can fail the WebSocket handshake instead */
+	LWS_CLOSE_STATUS_UNEXPECTED_CONDITION			= 1011,
+	/**< 1011 indicates that a server is terminating the connection because
+      it encountered an unexpected condition that prevented it from
+      fulfilling the request. */
+	LWS_CLOSE_STATUS_TLS_FAILURE				= 1015,
+	/**< 1015 is a reserved value and MUST NOT be set as a status code in a
+      Close control frame by an endpoint.  It is designated for use in
+      applications expecting a status code to indicate that the
+      connection was closed due to a failure to perform a TLS handshake
+      (e.g., the server certificate can't be verified). */
+
+	LWS_CLOSE_STATUS_CLIENT_TRANSACTION_DONE		= 2000,
+
+	/****** add new things just above ---^ ******/
+
+	LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY		= 9999,
+};
+
+/**
+ * lws_close_reason - Set reason and aux data to send with Close packet
+ *		If you are going to return nonzero from the callback
+ *		requesting the connection to close, you can optionally
+ *		call this to set the reason the peer will be told if
+ *		possible.
+ *
+ * \param wsi:	The websocket connection to set the close reason on
+ * \param status:	A valid close status from websocket standard
+ * \param buf:	NULL or buffer containing up to 124 bytes of auxiliary data
+ * \param len:	Length of data in \param buf to send
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_close_reason(struct lws *wsi, enum lws_close_status status,
+		 unsigned char *buf, size_t len);
+
+///@}
+
+struct lws;
+struct lws_context;
+/* needed even with extensions disabled for create context */
+struct lws_extension;
+
+
+/*! \defgroup usercb User Callback
+ *
+ * ##User protocol callback
+ *
+ * The protocol callback is the primary way lws interacts with
+ * user code.  For one of a list of a few dozen reasons the callback gets
+ * called at some event to be handled.
+ *
+ * All of the events can be ignored, returning 0 is taken as "OK" and returning
+ * nonzero in most cases indicates that the connection should be closed.
+ */
+///@{
+
+struct lws_ssl_info {
+	int where;
+	int ret;
+};
+
+enum lws_cert_update_state {
+	LWS_CUS_IDLE,
+	LWS_CUS_STARTING,
+	LWS_CUS_SUCCESS,
+	LWS_CUS_FAILED,
+
+	LWS_CUS_CREATE_KEYS,
+	LWS_CUS_REG,
+	LWS_CUS_AUTH,
+	LWS_CUS_CHALLENGE,
+	LWS_CUS_CREATE_REQ,
+	LWS_CUS_REQ,
+	LWS_CUS_CONFIRM,
+	LWS_CUS_ISSUE,
+};
+
+enum {
+	LWS_TLS_REQ_ELEMENT_COUNTRY,
+	LWS_TLS_REQ_ELEMENT_STATE,
+	LWS_TLS_REQ_ELEMENT_LOCALITY,
+	LWS_TLS_REQ_ELEMENT_ORGANIZATION,
+	LWS_TLS_REQ_ELEMENT_COMMON_NAME,
+	LWS_TLS_REQ_ELEMENT_EMAIL,
+
+	LWS_TLS_REQ_ELEMENT_COUNT,
+
+	LWS_TLS_SET_DIR_URL = LWS_TLS_REQ_ELEMENT_COUNT,
+	LWS_TLS_SET_AUTH_PATH,
+	LWS_TLS_SET_CERT_PATH,
+	LWS_TLS_SET_KEY_PATH,
+
+	LWS_TLS_TOTAL_COUNT
+};
+
+struct lws_acme_cert_aging_args {
+	struct lws_vhost *vh;
+	const char *element_overrides[LWS_TLS_TOTAL_COUNT]; /* NULL = use pvo */
+};
+
+/*
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+/** enum lws_callback_reasons - reason you're getting a protocol callback */
+enum lws_callback_reasons {
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to wsi and protocol binding lifecycle -----
+	 */
+
+	LWS_CALLBACK_PROTOCOL_INIT				= 27,
+	/**< One-time call per protocol, per-vhost using it, so it can
+	 * do initial setup / allocations etc */
+
+	LWS_CALLBACK_PROTOCOL_DESTROY				= 28,
+	/**< One-time call per protocol, per-vhost using it, indicating
+	 * this protocol won't get used at all after this callback, the
+	 * vhost is getting destroyed.  Take the opportunity to
+	 * deallocate everything that was allocated by the protocol. */
+
+	LWS_CALLBACK_WSI_CREATE					= 29,
+	/**< outermost (earliest) wsi create notification to protocols[0] */
+
+	LWS_CALLBACK_WSI_DESTROY				= 30,
+	/**< outermost (latest) wsi destroy notification to protocols[0] */
+
+	LWS_CALLBACK_HTTP_BIND_PROTOCOL				= 49,
+	/**< By default, all HTTP handling is done in protocols[0].
+	 * However you can bind different protocols (by name) to
+	 * different parts of the URL space using callback mounts.  This
+	 * callback occurs in the new protocol when a wsi is bound
+	 * to that protocol.  Any protocol allocation related to the
+	 * http transaction processing should be created then.
+	 * These specific callbacks are necessary because with HTTP/1.1,
+	 * a single connection may perform at series of different
+	 * transactions at different URLs, thus the lifetime of the
+	 * protocol bind is just for one transaction, not connection. */
+
+	LWS_CALLBACK_HTTP_DROP_PROTOCOL				= 50,
+	/**< This is called when a transaction is unbound from a protocol.
+	 * It indicates the connection completed its transaction and may
+	 * do something different now.  Any protocol allocation related
+	 * to the http transaction processing should be destroyed. */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to Server TLS -----
+	 */
+
+	LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS	= 21,
+	/**< if configured for
+	 * including OpenSSL support, this callback allows your user code
+	 * to perform extra SSL_CTX_load_verify_locations() or similar
+	 * calls to direct OpenSSL where to find certificates the client
+	 * can use to confirm the remote server identity.  user is the
+	 * OpenSSL SSL_CTX* */
+
+	LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS	= 22,
+	/**< if configured for
+	 * including OpenSSL support, this callback allows your user code
+	 * to load extra certificates into the server which allow it to
+	 * verify the validity of certificates returned by clients.  user
+	 * is the server's OpenSSL SSL_CTX* and in is the lws_vhost */
+
+	LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION	= 23,
+	/**< if the libwebsockets vhost was created with the option
+	 * LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT, then this
+	 * callback is generated during OpenSSL verification of the cert
+	 * sent from the client.  It is sent to protocol[0] callback as
+	 * no protocol has been negotiated on the connection yet.
+	 * Notice that the libwebsockets context and wsi are both NULL
+	 * during this callback.  See
+	 *  http://www.openssl.org/docs/ssl/SSL_CTX_set_verify.html
+	 * to understand more detail about the OpenSSL callback that
+	 * generates this libwebsockets callback and the meanings of the
+	 * arguments passed.  In this callback, user is the x509_ctx,
+	 * in is the ssl pointer and len is preverify_ok
+	 * Notice that this callback maintains libwebsocket return
+	 * conventions, return 0 to mean the cert is OK or 1 to fail it.
+	 * This also means that if you don't handle this callback then
+	 * the default callback action of returning 0 allows the client
+	 * certificates. */
+
+	LWS_CALLBACK_OPENSSL_CONTEXT_REQUIRES_PRIVATE_KEY	= 37,
+	/**< if configured for including OpenSSL support but no private key
+	 * file has been specified (ssl_private_key_filepath is NULL), this is
+	 * called to allow the user to set the private key directly via
+	 * libopenssl and perform further operations if required; this might be
+	 * useful in situations where the private key is not directly accessible
+	 * by the OS, for example if it is stored on a smartcard.
+	 * user is the server's OpenSSL SSL_CTX* */
+
+	LWS_CALLBACK_SSL_INFO					= 67,
+	/**< SSL connections only.  An event you registered an
+	 * interest in at the vhost has occurred on a connection
+	 * using the vhost.  in is a pointer to a
+	 * struct lws_ssl_info containing information about the
+	 * event*/
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to Client TLS -----
+	 */
+
+	LWS_CALLBACK_OPENSSL_PERFORM_SERVER_CERT_VERIFICATION = 58,
+	/**< Similar to LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION
+	 * this callback is called during OpenSSL verification of the cert
+	 * sent from the server to the client. It is sent to protocol[0]
+	 * callback as no protocol has been negotiated on the connection yet.
+	 * Notice that the wsi is set because lws_client_connect_via_info was
+	 * successful.
+	 *
+	 * See http://www.openssl.org/docs/ssl/SSL_CTX_set_verify.html
+	 * to understand more detail about the OpenSSL callback that
+	 * generates this libwebsockets callback and the meanings of the
+	 * arguments passed. In this callback, user is the x509_ctx,
+	 * in is the ssl pointer and len is preverify_ok.
+	 *
+	 * THIS IS NOT RECOMMENDED BUT if a cert validation error shall be
+	 * overruled and cert shall be accepted as ok,
+	 * X509_STORE_CTX_set_error((X509_STORE_CTX*)user, X509_V_OK); must be
+	 * called and return value must be 0 to mean the cert is OK;
+	 * returning 1 will fail the cert in any case.
+	 *
+	 * This also means that if you don't handle this callback then
+	 * the default callback action of returning 0 will not accept the
+	 * certificate in case of a validation error decided by the SSL lib.
+	 *
+	 * This is expected and secure behaviour when validating certificates.
+	 *
+	 * Note: LCCSCF_ALLOW_SELFSIGNED and
+	 * LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK still work without this
+	 * callback being implemented.
+	 */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to HTTP Server  -----
+	 */
+
+	LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED		= 19,
+	/**< A new client has been accepted by the ws server.  This
+	 * callback allows setting any relevant property to it. Because this
+	 * happens immediately after the instantiation of a new client,
+	 * there's no websocket protocol selected yet so this callback is
+	 * issued only to protocol 0. Only wsi is defined, pointing to the
+	 * new client, and the return value is ignored. */
+
+	LWS_CALLBACK_HTTP					= 12,
+	/**< an http request has come from a client that is not
+	 * asking to upgrade the connection to a websocket
+	 * one.  This is a chance to serve http content,
+	 * for example, to send a script to the client
+	 * which will then open the websockets connection.
+	 * in points to the URI path requested and
+	 * lws_serve_http_file() makes it very
+	 * simple to send back a file to the client.
+	 * Normally after sending the file you are done
+	 * with the http connection, since the rest of the
+	 * activity will come by websockets from the script
+	 * that was delivered by http, so you will want to
+	 * return 1; to close and free up the connection. */
+
+	LWS_CALLBACK_HTTP_BODY					= 13,
+	/**< the next len bytes data from the http
+	 * request body HTTP connection is now available in in. */
+
+	LWS_CALLBACK_HTTP_BODY_COMPLETION			= 14,
+	/**< the expected amount of http request body has been delivered */
+
+	LWS_CALLBACK_HTTP_FILE_COMPLETION			= 15,
+	/**< a file requested to be sent down http link has completed. */
+
+	LWS_CALLBACK_HTTP_WRITEABLE				= 16,
+	/**< you can write more down the http protocol link now. */
+
+	LWS_CALLBACK_CLOSED_HTTP				=  5,
+	/**< when a HTTP (non-websocket) session ends */
+
+	LWS_CALLBACK_FILTER_HTTP_CONNECTION			= 18,
+	/**< called when the request has
+	 * been received and parsed from the client, but the response is
+	 * not sent yet.  Return non-zero to disallow the connection.
+	 * user is a pointer to the connection user space allocation,
+	 * in is the URI, eg, "/"
+	 * In your handler you can use the public APIs
+	 * lws_hdr_total_length() / lws_hdr_copy() to access all of the
+	 * headers using the header enums lws_token_indexes from
+	 * libwebsockets.h to check for and read the supported header
+	 * presence and content before deciding to allow the http
+	 * connection to proceed or to kill the connection. */
+
+	LWS_CALLBACK_ADD_HEADERS				= 53,
+	/**< This gives your user code a chance to add headers to a server
+	 * transaction bound to your protocol.  `in` points to a
+	 * `struct lws_process_html_args` describing a buffer and length
+	 * you can add headers into using the normal lws apis.
+	 *
+	 * (see LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER to add headers to
+	 * a client transaction)
+	 *
+	 * Only `args->p` and `args->len` are valid, and `args->p` should
+	 * be moved on by the amount of bytes written, if any.  Eg
+	 *
+	 * 	case LWS_CALLBACK_ADD_HEADERS:
+	 *
+	 *          struct lws_process_html_args *args =
+	 *          		(struct lws_process_html_args *)in;
+	 *
+	 *	    if (lws_add_http_header_by_name(wsi,
+	 *			(unsigned char *)"set-cookie:",
+	 *			(unsigned char *)cookie, cookie_len,
+	 *			(unsigned char **)&args->p,
+	 *			(unsigned char *)args->p + args->max_len))
+	 *		return 1;
+	 *
+	 *          break;
+	 */
+
+	LWS_CALLBACK_CHECK_ACCESS_RIGHTS			= 51,
+	/**< This gives the user code a chance to forbid an http access.
+	 * `in` points to a `struct lws_process_html_args`, which
+	 * describes the URL, and a bit mask describing the type of
+	 * authentication required.  If the callback returns nonzero,
+	 * the transaction ends with HTTP_STATUS_UNAUTHORIZED. */
+
+	LWS_CALLBACK_PROCESS_HTML				= 52,
+	/**< This gives your user code a chance to mangle outgoing
+	 * HTML.  `in` points to a `struct lws_process_html_args`
+	 * which describes the buffer containing outgoing HTML.
+	 * The buffer may grow up to `.max_len` (currently +128
+	 * bytes per buffer).
+	 */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to HTTP Client  -----
+	 */
+
+	LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP			= 44,
+	/**< The HTTP client connection has succeeded, and is now
+	 * connected to the server */
+
+	LWS_CALLBACK_CLOSED_CLIENT_HTTP				= 45,
+	/**< The HTTP client connection is closing */
+
+	LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ			= 48,
+	/**< This is generated by lws_http_client_read() used to drain
+	 * incoming data.  In the case the incoming data was chunked, it will
+	 * be split into multiple smaller callbacks for each chunk block,
+	 * removing the chunk headers. If not chunked, it will appear all in
+	 * one callback. */
+
+	LWS_CALLBACK_RECEIVE_CLIENT_HTTP			= 46,
+	/**< This simply indicates data was received on the HTTP client
+	 * connection.  It does NOT drain or provide the data.
+	 * This exists to neatly allow a proxying type situation,
+	 * where this incoming data will go out on another connection.
+	 * If the outgoing connection stalls, we should stall processing
+	 * the incoming data.  So a handler for this in that case should
+	 * simply set a flag to indicate there is incoming data ready
+	 * and ask for a writeable callback on the outgoing connection.
+	 * In the writable callback he can check the flag and then get
+	 * and drain the waiting incoming data using lws_http_client_read().
+	 * This will use callbacks to LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ
+	 * to get and drain the incoming data, where it should be sent
+	 * back out on the outgoing connection. */
+	LWS_CALLBACK_COMPLETED_CLIENT_HTTP			= 47,
+	/**< The client transaction completed... at the moment this
+	 * is the same as closing since transaction pipelining on
+	 * client side is not yet supported.  */
+
+	LWS_CALLBACK_CLIENT_HTTP_WRITEABLE			= 57,
+	/**< when doing an HTTP type client connection, you can call
+	 * lws_client_http_body_pending(wsi, 1) from
+	 * LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER to get these callbacks
+	 * sending the HTTP headers.
+	 *
+	 * From this callback, when you have sent everything, you should let
+	 * lws know by calling lws_client_http_body_pending(wsi, 0)
+	 */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to Websocket Server -----
+	 */
+
+	LWS_CALLBACK_ESTABLISHED				=  0,
+	/**< (VH) after the server completes a handshake with an incoming
+	 * client.  If you built the library with ssl support, in is a
+	 * pointer to the ssl struct associated with the connection or NULL.
+	 *
+	 * b0 of len is set if the connection was made using ws-over-h2
+	 */
+
+	LWS_CALLBACK_CLOSED					=  4,
+	/**< when the websocket session ends */
+
+	LWS_CALLBACK_SERVER_WRITEABLE				= 11,
+	/**< See LWS_CALLBACK_CLIENT_WRITEABLE */
+
+	LWS_CALLBACK_RECEIVE					=  6,
+	/**< data has appeared for this server endpoint from a
+	 * remote client, it can be found at *in and is
+	 * len bytes long */
+
+	LWS_CALLBACK_RECEIVE_PONG				=  7,
+	/**< servers receive PONG packets with this callback reason */
+
+	LWS_CALLBACK_WS_PEER_INITIATED_CLOSE			= 38,
+	/**< The peer has sent an unsolicited Close WS packet.  in and
+	 * len are the optional close code (first 2 bytes, network
+	 * order) and the optional additional information which is not
+	 * defined in the standard, and may be a string or non human-readable
+	 * data.
+	 * If you return 0 lws will echo the close and then close the
+	 * connection.  If you return nonzero lws will just close the
+	 * connection. */
+
+	LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION			= 20,
+	/**< called when the handshake has
+	 * been received and parsed from the client, but the response is
+	 * not sent yet.  Return non-zero to disallow the connection.
+	 * user is a pointer to the connection user space allocation,
+	 * in is the requested protocol name
+	 * In your handler you can use the public APIs
+	 * lws_hdr_total_length() / lws_hdr_copy() to access all of the
+	 * headers using the header enums lws_token_indexes from
+	 * libwebsockets.h to check for and read the supported header
+	 * presence and content before deciding to allow the handshake
+	 * to proceed or to kill the connection. */
+
+	LWS_CALLBACK_CONFIRM_EXTENSION_OKAY			= 25,
+	/**< When the server handshake code
+	 * sees that it does support a requested extension, before
+	 * accepting the extension by additing to the list sent back to
+	 * the client it gives this callback just to check that it's okay
+	 * to use that extension.  It calls back to the requested protocol
+	 * and with in being the extension name, len is 0 and user is
+	 * valid.  Note though at this time the ESTABLISHED callback hasn't
+	 * happened yet so if you initialize user content there, user
+	 * content during this callback might not be useful for anything. */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to Websocket Client -----
+	 */
+
+	LWS_CALLBACK_CLIENT_CONNECTION_ERROR			=  1,
+	/**< the request client connection has been unable to complete a
+	 * handshake with the remote server.  If in is non-NULL, you can
+	 * find an error string of length len where it points to
+	 *
+	 * Diagnostic strings that may be returned include
+	 *
+	 *     	"getaddrinfo (ipv6) failed"
+	 *     	"unknown address family"
+	 *     	"getaddrinfo (ipv4) failed"
+	 *     	"set socket opts failed"
+	 *     	"insert wsi failed"
+	 *     	"lws_ssl_client_connect1 failed"
+	 *     	"lws_ssl_client_connect2 failed"
+	 *     	"Peer hung up"
+	 *     	"read failed"
+	 *     	"HS: URI missing"
+	 *     	"HS: Redirect code but no Location"
+	 *     	"HS: URI did not parse"
+	 *     	"HS: Redirect failed"
+	 *     	"HS: Server did not return 200"
+	 *     	"HS: OOM"
+	 *     	"HS: disallowed by client filter"
+	 *     	"HS: disallowed at ESTABLISHED"
+	 *     	"HS: ACCEPT missing"
+	 *     	"HS: ws upgrade response not 101"
+	 *     	"HS: UPGRADE missing"
+	 *     	"HS: Upgrade to something other than websocket"
+	 *     	"HS: CONNECTION missing"
+	 *     	"HS: UPGRADE malformed"
+	 *     	"HS: PROTOCOL malformed"
+	 *     	"HS: Cannot match protocol"
+	 *     	"HS: EXT: list too big"
+	 *     	"HS: EXT: failed setting defaults"
+	 *     	"HS: EXT: failed parsing defaults"
+	 *     	"HS: EXT: failed parsing options"
+	 *     	"HS: EXT: Rejects server options"
+	 *     	"HS: EXT: unknown ext"
+	 *     	"HS: Accept hash wrong"
+	 *     	"HS: Rejected by filter cb"
+	 *     	"HS: OOM"
+	 *     	"HS: SO_SNDBUF failed"
+	 *     	"HS: Rejected at CLIENT_ESTABLISHED"
+	 */
+
+	LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH		=  2,
+	/**< this is the last chance for the client user code to examine the
+	 * http headers and decide to reject the connection.  If the
+	 * content in the headers is interesting to the
+	 * client (url, etc) it needs to copy it out at
+	 * this point since it will be destroyed before
+	 * the CLIENT_ESTABLISHED call */
+
+	LWS_CALLBACK_CLIENT_ESTABLISHED				=  3,
+	/**< after your client connection completed the websocket upgrade
+	 * handshake with the remote server */
+
+	LWS_CALLBACK_CLIENT_CLOSED				=  75,
+	/**< when a client websocket session ends */
+
+	LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER		= 24,
+	/**< this callback happens
+	 * when a client handshake is being compiled.  user is NULL,
+	 * in is a char **, it's pointing to a char * which holds the
+	 * next location in the header buffer where you can add
+	 * headers, and len is the remaining space in the header buffer,
+	 * which is typically some hundreds of bytes.  So, to add a canned
+	 * cookie, your handler code might look similar to:
+	 *
+	 *	char **p = (char **)in;
+	 *
+	 *	if (len < 100)
+	 *		return 1;
+	 *
+	 *	*p += sprintf(*p, "Cookie: a=b\x0d\x0a");
+	 *
+	 *	return 0;
+	 *
+	 * Notice if you add anything, you just have to take care about
+	 * the CRLF on the line you added.  Obviously this callback is
+	 * optional, if you don't handle it everything is fine.
+	 *
+	 * Notice the callback is coming to protocols[0] all the time,
+	 * because there is no specific protocol negotiated yet.
+	 *
+	 * See LWS_CALLBACK_ADD_HEADERS for adding headers to server
+	 * transactions.
+	 */
+
+	LWS_CALLBACK_CLIENT_RECEIVE				=  8,
+	/**< data has appeared from the server for the client connection, it
+	 * can be found at *in and is len bytes long */
+
+	LWS_CALLBACK_CLIENT_RECEIVE_PONG			=  9,
+	/**< clients receive PONG packets with this callback reason */
+
+	LWS_CALLBACK_CLIENT_WRITEABLE				= 10,
+	/**<  If you call lws_callback_on_writable() on a connection, you will
+	 * get one of these callbacks coming when the connection socket
+	 * is able to accept another write packet without blocking.
+	 * If it already was able to take another packet without blocking,
+	 * you'll get this callback at the next call to the service loop
+	 * function.  Notice that CLIENTs get LWS_CALLBACK_CLIENT_WRITEABLE
+	 * and servers get LWS_CALLBACK_SERVER_WRITEABLE. */
+
+	LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED		= 26,
+	/**< When a ws client
+	 * connection is being prepared to start a handshake to a server,
+	 * each supported extension is checked with protocols[0] callback
+	 * with this reason, giving the user code a chance to suppress the
+	 * claim to support that extension by returning non-zero.  If
+	 * unhandled, by default 0 will be returned and the extension
+	 * support included in the header to the server.  Notice this
+	 * callback comes to protocols[0]. */
+
+	LWS_CALLBACK_WS_EXT_DEFAULTS				= 39,
+	/**< Gives client connections an opportunity to adjust negotiated
+	 * extension defaults.  `user` is the extension name that was
+	 * negotiated (eg, "permessage-deflate").  `in` points to a
+	 * buffer and `len` is the buffer size.  The user callback can
+	 * set the buffer to a string describing options the extension
+	 * should parse.  Or just ignore for defaults. */
+
+
+	LWS_CALLBACK_FILTER_NETWORK_CONNECTION			= 17,
+	/**< called when a client connects to
+	 * the server at network level; the connection is accepted but then
+	 * passed to this callback to decide whether to hang up immediately
+	 * or not, based on the client IP.  in contains the connection
+	 * socket's descriptor. Since the client connection information is
+	 * not available yet, wsi still pointing to the main server socket.
+	 * Return non-zero to terminate the connection before sending or
+	 * receiving anything. Because this happens immediately after the
+	 * network connection from the client, there's no websocket protocol
+	 * selected yet so this callback is issued only to protocol 0. */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to external poll loop integration  -----
+	 */
+
+	LWS_CALLBACK_GET_THREAD_ID				= 31,
+	/**< lws can accept callback when writable requests from other
+	 * threads, if you implement this callback and return an opaque
+	 * current thread ID integer. */
+
+	/* external poll() management support */
+	LWS_CALLBACK_ADD_POLL_FD				= 32,
+	/**< lws normally deals with its poll() or other event loop
+	 * internally, but in the case you are integrating with another
+	 * server you will need to have lws sockets share a
+	 * polling array with the other server.  This and the other
+	 * POLL_FD related callbacks let you put your specialized
+	 * poll array interface code in the callback for protocol 0, the
+	 * first protocol you support, usually the HTTP protocol in the
+	 * serving case.
+	 * This callback happens when a socket needs to be
+	 * added to the polling loop: in points to a struct
+	 * lws_pollargs; the fd member of the struct is the file
+	 * descriptor, and events contains the active events
+	 *
+	 * If you are using the internal lws polling / event loop
+	 * you can just ignore these callbacks. */
+
+	LWS_CALLBACK_DEL_POLL_FD				= 33,
+	/**< This callback happens when a socket descriptor
+	 * needs to be removed from an external polling array.  in is
+	 * again the struct lws_pollargs containing the fd member
+	 * to be removed.  If you are using the internal polling
+	 * loop, you can just ignore it. */
+
+	LWS_CALLBACK_CHANGE_MODE_POLL_FD			= 34,
+	/**< This callback happens when lws wants to modify the events for
+	 * a connection.
+	 * in is the struct lws_pollargs with the fd to change.
+	 * The new event mask is in events member and the old mask is in
+	 * the prev_events member.
+	 * If you are using the internal polling loop, you can just ignore
+	 * it. */
+
+	LWS_CALLBACK_LOCK_POLL					= 35,
+	/**< These allow the external poll changes driven
+	 * by lws to participate in an external thread locking
+	 * scheme around the changes, so the whole thing is threadsafe.
+	 * These are called around three activities in the library,
+	 *	- inserting a new wsi in the wsi / fd table (len=1)
+	 *	- deleting a wsi from the wsi / fd table (len=1)
+	 *	- changing a wsi's POLLIN/OUT state (len=0)
+	 * Locking and unlocking external synchronization objects when
+	 * len == 1 allows external threads to be synchronized against
+	 * wsi lifecycle changes if it acquires the same lock for the
+	 * duration of wsi dereference from the other thread context. */
+
+	LWS_CALLBACK_UNLOCK_POLL				= 36,
+	/**< See LWS_CALLBACK_LOCK_POLL, ignore if using lws internal poll */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to CGI serving -----
+	 */
+
+	LWS_CALLBACK_CGI					= 40,
+	/**< CGI: CGI IO events on stdin / out / err are sent here on
+	 * protocols[0].  The provided `lws_callback_http_dummy()`
+	 * handles this and the callback should be directed there if
+	 * you use CGI. */
+
+	LWS_CALLBACK_CGI_TERMINATED				= 41,
+	/**< CGI: The related CGI process ended, this is called before
+	 * the wsi is closed.  Used to, eg, terminate chunking.
+	 * The provided `lws_callback_http_dummy()`
+	 * handles this and the callback should be directed there if
+	 * you use CGI.  The child PID that terminated is in len. */
+
+	LWS_CALLBACK_CGI_STDIN_DATA				= 42,
+	/**< CGI: Data is, to be sent to the CGI process stdin, eg from
+	 * a POST body.  The provided `lws_callback_http_dummy()`
+	 * handles this and the callback should be directed there if
+	 * you use CGI. */
+
+	LWS_CALLBACK_CGI_STDIN_COMPLETED			= 43,
+	/**< CGI: no more stdin is coming.  The provided
+	 * `lws_callback_http_dummy()` handles this and the callback
+	 * should be directed there if you use CGI. */
+
+	LWS_CALLBACK_CGI_PROCESS_ATTACH				= 70,
+	/**< CGI: Sent when the CGI process is spawned for the wsi.  The
+	 * len parameter is the PID of the child process */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to Generic Sessions -----
+	 */
+
+	LWS_CALLBACK_SESSION_INFO				= 54,
+	/**< This is only generated by user code using generic sessions.
+	 * It's used to get a `struct lws_session_info` filled in by
+	 * generic sessions with information about the logged-in user.
+	 * See the messageboard sample for an example of how to use. */
+
+	LWS_CALLBACK_GS_EVENT					= 55,
+	/**< Indicates an event happened to the Generic Sessions session.
+	 * `in` contains a `struct lws_gs_event_args` describing the event. */
+
+	LWS_CALLBACK_HTTP_PMO					= 56,
+	/**< per-mount options for this connection, called before
+	 * the normal LWS_CALLBACK_HTTP when the mount has per-mount
+	 * options.
+	 */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to RAW sockets -----
+	 */
+
+	LWS_CALLBACK_RAW_RX					= 59,
+	/**< RAW mode connection RX */
+
+	LWS_CALLBACK_RAW_CLOSE					= 60,
+	/**< RAW mode connection is closing */
+
+	LWS_CALLBACK_RAW_WRITEABLE				= 61,
+	/**< RAW mode connection may be written */
+
+	LWS_CALLBACK_RAW_ADOPT					= 62,
+	/**< RAW mode connection was adopted (equivalent to 'wsi created') */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to RAW file handles -----
+	 */
+
+	LWS_CALLBACK_RAW_ADOPT_FILE				= 63,
+	/**< RAW mode file was adopted (equivalent to 'wsi created') */
+
+	LWS_CALLBACK_RAW_RX_FILE				= 64,
+	/**< This is the indication the RAW mode file has something to read.
+	 *   This doesn't actually do the read of the file and len is always
+	 *   0... your code should do the read having been informed there is
+	 *   something to read now. */
+
+	LWS_CALLBACK_RAW_WRITEABLE_FILE				= 65,
+	/**< RAW mode file is writeable */
+
+	LWS_CALLBACK_RAW_CLOSE_FILE				= 66,
+	/**< RAW mode wsi that adopted a file is closing */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to generic wsi events -----
+	 */
+
+	LWS_CALLBACK_TIMER					= 73,
+	/**< When the time elapsed after a call to
+	 * lws_set_timer_usecs(wsi, usecs) is up, the wsi will get one of
+	 * these callbacks.  The deadline can be continuously extended into the
+	 * future by later calls to lws_set_timer_usecs() before the deadline
+	 * expires, or cancelled by lws_set_timer_usecs(wsi, -1);
+	 * See the note on lws_set_timer_usecs() about which event loops are
+	 * supported. */
+
+	LWS_CALLBACK_EVENT_WAIT_CANCELLED			= 71,
+	/**< This is sent to every protocol of every vhost in response
+	 * to lws_cancel_service() or lws_cancel_service_pt().  This
+	 * callback is serialized in the lws event loop normally, even
+	 * if the lws_cancel_service[_pt]() call was from a different
+	 * thread. */
+
+	LWS_CALLBACK_CHILD_CLOSING				= 69,
+	/**< Sent to parent to notify them a child is closing / being
+	 * destroyed.  in is the child wsi.
+	 */
+
+	LWS_CALLBACK_CHILD_WRITE_VIA_PARENT			= 68,
+	/**< Child has been marked with parent_carries_io attribute, so
+	 * lws_write directs the to this callback at the parent,
+	 * in is a struct lws_write_passthru containing the args
+	 * the lws_write() was called with.
+	 */
+
+	/* ---------------------------------------------------------------------
+	 * ----- Callbacks related to TLS certificate management -----
+	 */
+
+	LWS_CALLBACK_VHOST_CERT_AGING				= 72,
+	/**< When a vhost TLS cert has its expiry checked, this callback
+	 * is broadcast to every protocol of every vhost in case the
+	 * protocol wants to take some action with this information.
+	 * \p in is a pointer to a struct lws_acme_cert_aging_args,
+	 * and \p len is the number of days left before it expires, as
+	 * a (ssize_t).  In the struct lws_acme_cert_aging_args, vh
+	 * points to the vhost the cert aging information applies to,
+	 * and element_overrides[] is an optional way to update information
+	 * from the pvos... NULL in an index means use the information from
+	 * from the pvo for the cert renewal, non-NULL in the array index
+	 * means use that pointer instead for the index. */
+
+	LWS_CALLBACK_VHOST_CERT_UPDATE				= 74,
+	/**< When a vhost TLS cert is being updated, progress is
+	 * reported to the vhost in question here, including completion
+	 * and failure.  in points to optional JSON, and len represents the
+	 * connection state using enum lws_cert_update_state */
+
+
+	/****** add new things just above ---^ ******/
+
+	LWS_CALLBACK_USER = 1000,
+	/**<  user code can use any including above without fear of clashes */
+};
+
+
+
+/**
+ * typedef lws_callback_function() - User server actions
+ * \param wsi:	Opaque websocket instance pointer
+ * \param reason:	The reason for the call
+ * \param user:	Pointer to per-session user data allocated by library
+ * \param in:		Pointer used for some callback reasons
+ * \param len:	Length set for some callback reasons
+ *
+ *	This callback is the way the user controls what is served.  All the
+ *	protocol detail is hidden and handled by the library.
+ *
+ *	For each connection / session there is user data allocated that is
+ *	pointed to by "user".  You set the size of this user data area when
+ *	the library is initialized with lws_create_server.
+ */
+typedef int
+lws_callback_function(struct lws *wsi, enum lws_callback_reasons reason,
+		    void *user, void *in, size_t len);
+
+#define LWS_CB_REASON_AUX_BF__CGI		1
+#define LWS_CB_REASON_AUX_BF__PROXY		2
+#define LWS_CB_REASON_AUX_BF__CGI_CHUNK_END	4
+#define LWS_CB_REASON_AUX_BF__CGI_HEADERS	8
+///@}
+
+struct lws_vhost;
+
+/*! \defgroup generic hash
+ * ## Generic Hash related functions
+ *
+ * Lws provides generic hash / digest accessors that abstract the ones
+ * provided by whatever OpenSSL library you are linking against.
+ *
+ * It lets you use the same code if you build against mbedtls or OpenSSL
+ * for example.
+ */
+///@{
+
+#if defined(LWS_WITH_TLS)
+
+#if defined(LWS_WITH_MBEDTLS)
+#include <mbedtls/sha1.h>
+#include <mbedtls/sha256.h>
+#include <mbedtls/sha512.h>
+#endif
+
+enum lws_genhash_types {
+	LWS_GENHASH_TYPE_SHA1,
+	LWS_GENHASH_TYPE_SHA256,
+	LWS_GENHASH_TYPE_SHA384,
+	LWS_GENHASH_TYPE_SHA512,
+};
+
+enum lws_genhmac_types {
+	LWS_GENHMAC_TYPE_SHA256,
+	LWS_GENHMAC_TYPE_SHA384,
+	LWS_GENHMAC_TYPE_SHA512,
+};
+
+#define LWS_GENHASH_LARGEST 64
+
+struct lws_genhash_ctx {
+        uint8_t type;
+#if defined(LWS_WITH_MBEDTLS)
+        union {
+		mbedtls_sha1_context sha1;
+		mbedtls_sha256_context sha256;
+		mbedtls_sha512_context sha512; /* 384 also uses this */
+		const mbedtls_md_info_t *hmac;
+        } u;
+#else
+        const EVP_MD *evp_type;
+        EVP_MD_CTX *mdctx;
+#endif
+};
+
+struct lws_genhmac_ctx {
+        uint8_t type;
+#if defined(LWS_WITH_MBEDTLS)
+	const mbedtls_md_info_t *hmac;
+	mbedtls_md_context_t ctx;
+#else
+        const EVP_MD *evp_type;
+        EVP_MD_CTX *ctx;
+#endif
+};
+
+/** lws_genhash_size() - get hash size in bytes
+ *
+ * \param type:	one of LWS_GENHASH_TYPE_...
+ *
+ * Returns number of bytes in this type of hash
+ */
+LWS_VISIBLE LWS_EXTERN size_t LWS_WARN_UNUSED_RESULT
+lws_genhash_size(enum lws_genhash_types type);
+
+/** lws_genhmac_size() - get hash size in bytes
+ *
+ * \param type:	one of LWS_GENHASH_TYPE_...
+ *
+ * Returns number of bytes in this type of hmac
+ */
+LWS_VISIBLE LWS_EXTERN size_t LWS_WARN_UNUSED_RESULT
+lws_genhmac_size(enum lws_genhmac_types type);
+
+/** lws_genhash_init() - prepare your struct lws_genhash_ctx for use
+ *
+ * \param ctx: your struct lws_genhash_ctx
+ * \param type:	one of LWS_GENHASH_TYPE_...
+ *
+ * Initializes the hash context for the type you requested
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_genhash_init(struct lws_genhash_ctx *ctx, enum lws_genhash_types type);
+
+/** lws_genhash_update() - digest len bytes of the buffer starting at in
+ *
+ * \param ctx: your struct lws_genhash_ctx
+ * \param in: start of the bytes to digest
+ * \param len: count of bytes to digest
+ *
+ * Updates the state of your hash context to reflect digesting len bytes from in
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_genhash_update(struct lws_genhash_ctx *ctx, const void *in, size_t len);
+
+/** lws_genhash_destroy() - copy out the result digest and destroy the ctx
+ *
+ * \param ctx: your struct lws_genhash_ctx
+ * \param result: NULL, or where to copy the result hash
+ *
+ * Finalizes the hash and copies out the digest.  Destroys any allocations such
+ * that ctx can safely go out of scope after calling this.
+ *
+ * NULL result is supported so that you can destroy the ctx cleanly on error
+ * conditions, where there is no valid result.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genhash_destroy(struct lws_genhash_ctx *ctx, void *result);
+
+/** lws_genhmac_init() - prepare your struct lws_genhmac_ctx for use
+ *
+ * \param ctx: your struct lws_genhmac_ctx
+ * \param type:	one of LWS_GENHMAC_TYPE_...
+ * \param key: pointer to the start of the HMAC key
+ * \param key_len: length of the HMAC key
+ *
+ * Initializes the hash context for the type you requested
+ *
+ * If the return is nonzero, it failed and there is nothing needing to be
+ * destroyed.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_genhmac_init(struct lws_genhmac_ctx *ctx, enum lws_genhmac_types type,
+		const uint8_t *key, size_t key_len);
+
+/** lws_genhmac_update() - digest len bytes of the buffer starting at in
+ *
+ * \param ctx: your struct lws_genhmac_ctx
+ * \param in: start of the bytes to digest
+ * \param len: count of bytes to digest
+ *
+ * Updates the state of your hash context to reflect digesting len bytes from in
+ *
+ * If the return is nonzero, it failed and needs destroying.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_genhmac_update(struct lws_genhmac_ctx *ctx, const void *in, size_t len);
+
+/** lws_genhmac_destroy() - copy out the result digest and destroy the ctx
+ *
+ * \param ctx: your struct lws_genhmac_ctx
+ * \param result: NULL, or where to copy the result hash
+ *
+ * Finalizes the hash and copies out the digest.  Destroys any allocations such
+ * that ctx can safely go out of scope after calling this.
+ *
+ * NULL result is supported so that you can destroy the ctx cleanly on error
+ * conditions, where there is no valid result.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genhmac_destroy(struct lws_genhmac_ctx *ctx, void *result);
+///@}
+
+/*! \defgroup generic RSA
+ * ## Generic RSA related functions
+ *
+ * Lws provides generic RSA functions that abstract the ones
+ * provided by whatever OpenSSL library you are linking against.
+ *
+ * It lets you use the same code if you build against mbedtls or OpenSSL
+ * for example.
+ */
+///@{
+
+enum enum_jwk_tok {
+	JWK_KEY_E,
+	JWK_KEY_N,
+	JWK_KEY_D,
+	JWK_KEY_P,
+	JWK_KEY_Q,
+	JWK_KEY_DP,
+	JWK_KEY_DQ,
+	JWK_KEY_QI,
+	JWK_KTY, /* also serves as count of real elements */
+	JWK_KEY,
+};
+
+#define LWS_COUNT_RSA_ELEMENTS JWK_KTY
+
+struct lws_genrsa_ctx {
+#if defined(LWS_WITH_MBEDTLS)
+	mbedtls_rsa_context *ctx;
+#else
+	BIGNUM *bn[LWS_COUNT_RSA_ELEMENTS];
+	RSA *rsa;
+#endif
+};
+
+struct lws_genrsa_element {
+	uint8_t *buf;
+	uint16_t len;
+};
+
+struct lws_genrsa_elements {
+	struct lws_genrsa_element e[LWS_COUNT_RSA_ELEMENTS];
+};
+
+/** lws_jwk_destroy_genrsa_elements() - Free allocations in genrsa_elements
+ *
+ * \param el: your struct lws_genrsa_elements
+ *
+ * This is a helper for user code making use of struct lws_genrsa_elements
+ * where the elements are allocated on the heap, it frees any non-NULL
+ * buf element and sets the buf to NULL.
+ *
+ * NB: lws_genrsa_public_... apis do not need this as they take care of the key
+ * creation and destruction themselves.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_jwk_destroy_genrsa_elements(struct lws_genrsa_elements *el);
+
+/** lws_genrsa_public_decrypt_create() - Create RSA public decrypt context
+ *
+ * \param ctx: your struct lws_genrsa_ctx
+ * \param el: struct prepared with key element data
+ *
+ * Creates an RSA context with a public key associated with it, formed from
+ * the key elements in \p el.
+ *
+ * Returns 0 for OK or nonzero for error.
+ *
+ * This and related APIs operate identically with OpenSSL or mbedTLS backends.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genrsa_create(struct lws_genrsa_ctx *ctx, struct lws_genrsa_elements *el);
+
+/** lws_genrsa_new_keypair() - Create new RSA keypair
+ *
+ * \param context: your struct lws_context (may be used for RNG)
+ * \param ctx: your struct lws_genrsa_ctx
+ * \param el: struct to get the new key element data allocated into it
+ * \param bits: key size, eg, 4096
+ *
+ * Creates a new RSA context and generates a new keypair into it, with \p bits
+ * bits.
+ *
+ * Returns 0 for OK or nonzero for error.
+ *
+ * This and related APIs operate identically with OpenSSL or mbedTLS backends.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genrsa_new_keypair(struct lws_context *context, struct lws_genrsa_ctx *ctx,
+		       struct lws_genrsa_elements *el, int bits);
+
+/** lws_genrsa_public_decrypt() - Perform RSA public decryption
+ *
+ * \param ctx: your struct lws_genrsa_ctx
+ * \param in: encrypted input
+ * \param in_len: length of encrypted input
+ * \param out: decrypted output
+ * \param out_max: size of output buffer
+ *
+ * Performs the decryption.
+ *
+ * Returns <0 for error, or length of decrypted data.
+ *
+ * This and related APIs operate identically with OpenSSL or mbedTLS backends.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genrsa_public_decrypt(struct lws_genrsa_ctx *ctx, const uint8_t *in,
+			  size_t in_len, uint8_t *out, size_t out_max);
+
+/** lws_genrsa_public_verify() - Perform RSA public verification
+ *
+ * \param ctx: your struct lws_genrsa_ctx
+ * \param in: unencrypted payload (usually a recomputed hash)
+ * \param hash_type: one of LWS_GENHASH_TYPE_
+ * \param sig: pointer to the signature we received with the payload
+ * \param sig_len: length of the signature we are checking in bytes
+ *
+ * Returns <0 for error, or 0 if signature matches the payload + key.
+ *
+ * This and related APIs operate identically with OpenSSL or mbedTLS backends.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genrsa_public_verify(struct lws_genrsa_ctx *ctx, const uint8_t *in,
+			 enum lws_genhash_types hash_type,
+			 const uint8_t *sig, size_t sig_len);
+
+/** lws_genrsa_public_sign() - Create RSA signature
+ *
+ * \param ctx: your struct lws_genrsa_ctx
+ * \param in: precomputed hash
+ * \param hash_type: one of LWS_GENHASH_TYPE_
+ * \param sig: pointer to buffer to take signature
+ * \param sig_len: length of the buffer (must be >= length of key N)
+ *
+ * Returns <0 for error, or 0 for success.
+ *
+ * This and related APIs operate identically with OpenSSL or mbedTLS backends.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genrsa_public_sign(struct lws_genrsa_ctx *ctx, const uint8_t *in,
+			 enum lws_genhash_types hash_type, uint8_t *sig,
+			 size_t sig_len);
+
+/** lws_genrsa_public_decrypt_destroy() - Destroy RSA public decrypt context
+ *
+ * \param ctx: your struct lws_genrsa_ctx
+ *
+ * Destroys any allocations related to \p ctx.
+ *
+ * This and related APIs operate identically with OpenSSL or mbedTLS backends.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_genrsa_destroy(struct lws_genrsa_ctx *ctx);
+
+/** lws_genrsa_render_pkey_asn1() - Exports public or private key to ASN1/DER
+ *
+ * \param ctx: your struct lws_genrsa_ctx
+ * \param _private: 0 = public part only, 1 = all parts of the key
+ * \param pkey_asn1: pointer to buffer to take the ASN1
+ * \param pkey_asn1_len: max size of the pkey_asn1_len
+ *
+ * Returns length of pkey_asn1 written, or -1 for error.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_genrsa_render_pkey_asn1(struct lws_genrsa_ctx *ctx, int _private,
+			    uint8_t *pkey_asn1, size_t pkey_asn1_len);
+///@}
+
+/*! \defgroup jwk JSON Web Keys
+ * ## JSON Web Keys API
+ *
+ * Lws provides an API to parse JSON Web Keys into a struct lws_genrsa_elements.
+ *
+ * "oct" and "RSA" type keys are supported.  For "oct" keys, they are held in
+ * the "e" member of the struct lws_genrsa_elements.
+ *
+ * Keys elements are allocated on the heap.  You must destroy the allocations
+ * in the struct lws_genrsa_elements by calling
+ * lws_jwk_destroy_genrsa_elements() when you are finished with it.
+ */
+///@{
+
+struct lws_jwk {
+	char keytype[5];		/**< "oct" or "RSA" */
+	struct lws_genrsa_elements el;	/**< OCTet key is in el.e */
+};
+
+/** lws_jwk_import() - Create a JSON Web key from the textual representation
+ *
+ * \param s: the JWK object to create
+ * \param in: a single JWK JSON stanza in utf-8
+ * \param len: the length of the JWK JSON stanza in bytes
+ *
+ * Creates an lws_jwk struct filled with data from the JSON representation.
+ * "oct" and "rsa" key types are supported.
+ *
+ * For "oct" type keys, it is loaded into el.e.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_jwk_import(struct lws_jwk *s, const char *in, size_t len);
+
+/** lws_jwk_destroy() - Destroy a JSON Web key
+ *
+ * \param s: the JWK object to destroy
+ *
+ * All allocations in the lws_jwk are destroyed
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_jwk_destroy(struct lws_jwk *s);
+
+/** lws_jwk_export() - Export a JSON Web key to a textual representation
+ *
+ * \param s: the JWK object to export
+ * \param _private: 0 = just export public parts, 1 = export everything
+ * \param p: the buffer to write the exported JWK to
+ * \param len: the length of the buffer \p p in bytes
+ *
+ * Returns length of the used part of the buffer if OK, or -1 for error.
+ *
+ * Serializes the content of the JWK into a char buffer.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_jwk_export(struct lws_jwk *s, int _private, char *p, size_t len);
+
+/** lws_jwk_load() - Import a JSON Web key from a file
+ *
+ * \param s: the JWK object to load into
+ * \param filename: filename to load from
+ *
+ * Returns 0 for OK or -1 for failure
+ */
+LWS_VISIBLE int
+lws_jwk_load(struct lws_jwk *s, const char *filename);
+
+/** lws_jwk_save() - Export a JSON Web key to a file
+ *
+ * \param s: the JWK object to save from
+ * \param filename: filename to save to
+ *
+ * Returns 0 for OK or -1 for failure
+ */
+LWS_VISIBLE int
+lws_jwk_save(struct lws_jwk *s, const char *filename);
+
+/** lws_jwk_rfc7638_fingerprint() - jwk to RFC7638 compliant fingerprint
+ *
+ * \param s: the JWK object to fingerprint
+ * \param digest32: buffer to take 32-byte digest
+ *
+ * Returns 0 for OK or -1 for failure
+ */
+LWS_VISIBLE int
+lws_jwk_rfc7638_fingerprint(struct lws_jwk *s, char *digest32);
+///@}
+
+
+/*! \defgroup jws JSON Web Signature
+ * ## JSON Web Signature API
+ *
+ * Lws provides an API to check and create RFC7515 JSON Web Signatures
+ *
+ * SHA256/384/512 HMAC, and RSA 256/384/512 are supported.
+ *
+ * The API uses your TLS library crypto, but works exactly the same no matter
+ * what you TLS backend is.
+ */
+///@{
+
+LWS_VISIBLE LWS_EXTERN int
+lws_jws_confirm_sig(const char *in, size_t len, struct lws_jwk *jwk);
+
+/**
+ * lws_jws_sign_from_b64() - add b64 sig to b64 hdr + payload
+ *
+ * \param b64_hdr: protected header encoded in b64, may be NULL
+ * \param hdr_len: bytes in b64 coding of protected header
+ * \param b64_pay: payload encoded in b64
+ * \param pay_len: bytes in b64 coding of payload
+ * \param b64_sig: buffer to write the b64 encoded signature into
+ * \param sig_len: max bytes we can write at b64_sig
+ * \param hash_type: one of LWS_GENHASH_TYPE_SHA[256|384|512]
+ * \param jwk: the struct lws_jwk containing the signing key
+ *
+ * This adds a b64-coded JWS signature of the b64-encoded protected header
+ * and b64-encoded payload, at \p b64_sig.  The signature will be as large
+ * as the N element of the RSA key when the RSA key is used, eg, 512 bytes for
+ * a 4096-bit key, and then b64-encoding on top.
+ *
+ * In some special cases, there is only payload to sign and no header, in that
+ * case \p b64_hdr may be NULL, and only the payload will be hashed before
+ * signing.
+ *
+ * Returns the length of the encoded signature written to \p b64_sig, or -1.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_jws_sign_from_b64(const char *b64_hdr, size_t hdr_len, const char *b64_pay,
+		      size_t pay_len, char *b64_sig, size_t sig_len,
+		      enum lws_genhash_types hash_type, struct lws_jwk *jwk);
+
+/**
+ * lws_jws_create_packet() - add b64 sig to b64 hdr + payload
+ *
+ * \param jwk: the struct lws_jwk containing the signing key
+ * \param payload: unencoded payload JSON
+ * \param len: length of unencoded payload JSON
+ * \param nonce: Nonse string to include in protected header
+ * \param out: buffer to take signed packet
+ * \param out_len: size of \p out buffer
+ *
+ * This creates a "flattened" JWS packet from the jwk and the plaintext
+ * payload, and signs it.  The packet is written into \p out.
+ *
+ * This does the whole packet assembly and signing, calling through to
+ * lws_jws_sign_from_b64() as part of the process.
+ *
+ * Returns the length written to \p out, or -1.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_jws_create_packet(struct lws_jwk *jwk, const char *payload, size_t len,
+		      const char *nonce, char *out, size_t out_len);
+
+/**
+ * lws_jws_base64_enc() - encode input data into b64url data
+ *
+ * \param in: the incoming plaintext
+ * \param in_len: the length of the incoming plaintext in bytes
+ * \param out: the buffer to store the b64url encoded data to
+ * \param out_max: the length of \p out in bytes
+ *
+ * Returns either -1 if problems, or the number of bytes written to \p out.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_jws_base64_enc(const char *in, size_t in_len, char *out, size_t out_max);
+///@}
+#endif
+
+/*! \defgroup extensions Extension related functions
+ * ##Extension releated functions
+ *
+ *  Ws defines optional extensions, lws provides the ability to implement these
+ *  in user code if so desired.
+ *
+ *  We provide one extensions permessage-deflate.
+ */
+///@{
+
+/*
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+enum lws_extension_callback_reasons {
+	LWS_EXT_CB_CONSTRUCT				=  4,
+	LWS_EXT_CB_CLIENT_CONSTRUCT			=  5,
+	LWS_EXT_CB_DESTROY				=  8,
+	LWS_EXT_CB_PACKET_TX_PRESEND			= 12,
+	LWS_EXT_CB_PAYLOAD_TX				= 21,
+	LWS_EXT_CB_PAYLOAD_RX				= 22,
+	LWS_EXT_CB_OPTION_DEFAULT			= 23,
+	LWS_EXT_CB_OPTION_SET				= 24,
+	LWS_EXT_CB_OPTION_CONFIRM			= 25,
+	LWS_EXT_CB_NAMED_OPTION_SET			= 26,
+
+	/****** add new things just above ---^ ******/
+};
+
+/** enum lws_ext_options_types */
+enum lws_ext_options_types {
+	EXTARG_NONE, /**< does not take an argument */
+	EXTARG_DEC,  /**< requires a decimal argument */
+	EXTARG_OPT_DEC /**< may have an optional decimal argument */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility */
+};
+
+/** struct lws_ext_options -	Option arguments to the extension.  These are
+ *				used in the negotiation at ws upgrade time.
+ *				The helper function lws_ext_parse_options()
+ *				uses these to generate callbacks */
+struct lws_ext_options {
+	const char *name; /**< Option name, eg, "server_no_context_takeover" */
+	enum lws_ext_options_types type; /**< What kind of args the option can take */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility */
+};
+
+/** struct lws_ext_option_arg */
+struct lws_ext_option_arg {
+	const char *option_name; /**< may be NULL, option_index used then */
+	int option_index; /**< argument ordinal to use if option_name missing */
+	const char *start; /**< value */
+	int len; /**< length of value */
+};
+
+/**
+ * typedef lws_extension_callback_function() - Hooks to allow extensions to operate
+ * \param context:	Websockets context
+ * \param ext:	This extension
+ * \param wsi:	Opaque websocket instance pointer
+ * \param reason:	The reason for the call
+ * \param user:	Pointer to ptr to per-session user data allocated by library
+ * \param in:		Pointer used for some callback reasons
+ * \param len:	Length set for some callback reasons
+ *
+ *	Each extension that is active on a particular connection receives
+ *	callbacks during the connection lifetime to allow the extension to
+ *	operate on websocket data and manage itself.
+ *
+ *	Libwebsockets takes care of allocating and freeing "user" memory for
+ *	each active extension on each connection.  That is what is pointed to
+ *	by the user parameter.
+ *
+ *	LWS_EXT_CB_CONSTRUCT:  called when the server has decided to
+ *		select this extension from the list provided by the client,
+ *		just before the server will send back the handshake accepting
+ *		the connection with this extension active.  This gives the
+ *		extension a chance to initialize its connection context found
+ *		in user.
+ *
+ *	LWS_EXT_CB_CLIENT_CONSTRUCT: same as LWS_EXT_CB_CONSTRUCT
+ *		but called when client is instantiating this extension.  Some
+ *		extensions will work the same on client and server side and then
+ *		you can just merge handlers for both CONSTRUCTS.
+ *
+ *	LWS_EXT_CB_DESTROY:  called when the connection the extension was
+ *		being used on is about to be closed and deallocated.  It's the
+ *		last chance for the extension to deallocate anything it has
+ *		allocated in the user data (pointed to by user) before the
+ *		user data is deleted.  This same callback is used whether you
+ *		are in client or server instantiation context.
+ *
+ *	LWS_EXT_CB_PACKET_TX_PRESEND: this works the same way as
+ *		LWS_EXT_CB_PACKET_RX_PREPARSE above, except it gives the
+ *		extension a chance to change websocket data just before it will
+ *		be sent out.  Using the same lws_token pointer scheme in in,
+ *		the extension can change the buffer and the length to be
+ *		transmitted how it likes.  Again if it wants to grow the
+ *		buffer safely, it should copy the data into its own buffer and
+ *		set the lws_tokens token pointer to it.
+ *
+ *	LWS_EXT_CB_ARGS_VALIDATE:
+ */
+typedef int
+lws_extension_callback_function(struct lws_context *context,
+			      const struct lws_extension *ext, struct lws *wsi,
+			      enum lws_extension_callback_reasons reason,
+			      void *user, void *in, size_t len);
+
+/** struct lws_extension -	An extension we support */
+struct lws_extension {
+	const char *name; /**< Formal extension name, eg, "permessage-deflate" */
+	lws_extension_callback_function *callback; /**< Service callback */
+	const char *client_offer; /**< String containing exts and options client offers */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility */
+};
+
+/**
+ * lws_set_extension_option(): set extension option if possible
+ *
+ * \param wsi:	websocket connection
+ * \param ext_name:	name of ext, like "permessage-deflate"
+ * \param opt_name:	name of option, like "rx_buf_size"
+ * \param opt_val:	value to set option to
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_set_extension_option(struct lws *wsi, const char *ext_name,
+			 const char *opt_name, const char *opt_val);
+
+/**
+ * lws_ext_parse_options() - deal with parsing negotiated extension options
+ *
+ * \param ext: related extension struct
+ * \param wsi:	websocket connection
+ * \param ext_user: per-connection extension private data
+ * \param opts: list of supported options
+ * \param o: option string to parse
+ * \param len: length
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_ext_parse_options(const struct lws_extension *ext, struct lws *wsi,
+		       void *ext_user, const struct lws_ext_options *opts,
+		       const char *o, int len);
+
+/** lws_extension_callback_pm_deflate() - extension for RFC7692
+ *
+ * \param context:	lws context
+ * \param ext:	related lws_extension struct
+ * \param wsi:	websocket connection
+ * \param reason:	incoming callback reason
+ * \param user:	per-connection extension private data
+ * \param in:	pointer parameter
+ * \param len:	length parameter
+ *
+ * Built-in callback implementing RFC7692 permessage-deflate
+ */
+LWS_EXTERN
+int lws_extension_callback_pm_deflate(
+	struct lws_context *context, const struct lws_extension *ext,
+	struct lws *wsi, enum lws_extension_callback_reasons reason,
+	void *user, void *in, size_t len);
+
+/*
+ * The internal exts are part of the public abi
+ * If we add more extensions, publish the callback here  ------v
+ */
+///@}
+
+/*! \defgroup Protocols-and-Plugins Protocols and Plugins
+ * \ingroup lwsapi
+ *
+ * ##Protocol and protocol plugin -related apis
+ *
+ * Protocols bind ws protocol names to a custom callback specific to that
+ * protocol implementaion.
+ *
+ * A list of protocols can be passed in at context creation time, but it is
+ * also legal to leave that NULL and add the protocols and their callback code
+ * using plugins.
+ *
+ * Plugins are much preferable compared to cut and pasting code into an
+ * application each time, since they can be used standalone.
+ */
+///@{
+/** struct lws_protocols -	List of protocols and handlers client or server
+ *					supports. */
+
+struct lws_protocols {
+	const char *name;
+	/**< Protocol name that must match the one given in the client
+	 * Javascript new WebSocket(url, 'protocol') name. */
+	lws_callback_function *callback;
+	/**< The service callback used for this protocol.  It allows the
+	 * service action for an entire protocol to be encapsulated in
+	 * the protocol-specific callback */
+	size_t per_session_data_size;
+	/**< Each new connection using this protocol gets
+	 * this much memory allocated on connection establishment and
+	 * freed on connection takedown.  A pointer to this per-connection
+	 * allocation is passed into the callback in the 'user' parameter */
+	size_t rx_buffer_size;
+	/**< lws allocates this much space for rx data and informs callback
+	 * when something came.  Due to rx flow control, the callback may not
+	 * be able to consume it all without having to return to the event
+	 * loop.  That is supported in lws.
+	 *
+	 * If .tx_packet_size is 0, this also controls how much may be sent at
+	 * once for backwards compatibility.
+	 */
+	unsigned int id;
+	/**< ignored by lws, but useful to contain user information bound
+	 * to the selected protocol.  For example if this protocol was
+	 * called "myprotocol-v2", you might set id to 2, and the user
+	 * code that acts differently according to the version can do so by
+	 * switch (wsi->protocol->id), user code might use some bits as
+	 * capability flags based on selected protocol version, etc. */
+	void *user; /**< ignored by lws, but user code can pass a pointer
+			here it can later access from the protocol callback */
+	size_t tx_packet_size;
+	/**< 0 indicates restrict send() size to .rx_buffer_size for backwards-
+	 * compatibility.
+	 * If greater than zero, a single send() is restricted to this amount
+	 * and any remainder is buffered by lws and sent afterwards also in
+	 * these size chunks.  Since that is expensive, it's preferable
+	 * to restrict one fragment you are trying to send to match this
+	 * size.
+	 */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility */
+};
+
+/**
+ * lws_vhost_name_to_protocol() - get vhost's protocol object from its name
+ *
+ * \param vh: vhost to search
+ * \param name: protocol name
+ *
+ * Returns NULL or a pointer to the vhost's protocol of the requested name
+ */
+LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
+lws_vhost_name_to_protocol(struct lws_vhost *vh, const char *name);
+
+/**
+ * lws_get_protocol() - Returns a protocol pointer from a websocket
+ *				  connection.
+ * \param wsi:	pointer to struct websocket you want to know the protocol of
+ *
+ *
+ *	Some apis can act on all live connections of a given protocol,
+ *	this is how you can get a pointer to the active protocol if needed.
+ */
+LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
+lws_get_protocol(struct lws *wsi);
+
+/** lws_protocol_get() -  deprecated: use lws_get_protocol */
+LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
+lws_protocol_get(struct lws *wsi) LWS_WARN_DEPRECATED;
+
+/**
+ * lws_protocol_vh_priv_zalloc() - Allocate and zero down a protocol's per-vhost
+ *				   storage
+ * \param vhost:	vhost the instance is related to
+ * \param prot:		protocol the instance is related to
+ * \param size:		bytes to allocate
+ *
+ * Protocols often find it useful to allocate a per-vhost struct, this is a
+ * helper to be called in the per-vhost init LWS_CALLBACK_PROTOCOL_INIT
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_protocol_vh_priv_zalloc(struct lws_vhost *vhost, const struct lws_protocols *prot,
+			    int size);
+
+/**
+ * lws_protocol_vh_priv_get() - retreive a protocol's per-vhost storage
+ *
+ * \param vhost:	vhost the instance is related to
+ * \param prot:		protocol the instance is related to
+ *
+ * Recover a pointer to the allocated per-vhost storage for the protocol created
+ * by lws_protocol_vh_priv_zalloc() earlier
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_protocol_vh_priv_get(struct lws_vhost *vhost, const struct lws_protocols *prot);
+
+/**
+ * lws_adjust_protocol_psds - change a vhost protocol's per session data size
+ *
+ * \param wsi: a connection with the protocol to change
+ * \param new_size: the new size of the per session data size for the protocol
+ *
+ * Returns user_space for the wsi, after allocating
+ *
+ * This should not be used except to initalize a vhost protocol's per session
+ * data size one time, before any connections are accepted.
+ *
+ * Sometimes the protocol wraps another protocol and needs to discover and set
+ * its per session data size at runtime.
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_adjust_protocol_psds(struct lws *wsi, size_t new_size);
+
+/**
+ * lws_finalize_startup() - drop initial process privileges
+ *
+ * \param context:	lws context
+ *
+ * This is called after the end of the vhost protocol initializations, but
+ * you may choose to call it earlier
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_finalize_startup(struct lws_context *context);
+
+/**
+ * lws_pvo_search() - helper to find a named pvo in a linked-list
+ *
+ * \param pvo:	the first pvo in the linked-list
+ * \param name: the name of the pvo to return if found
+ *
+ * Returns NULL, or a pointer to the name pvo in the linked-list
+ */
+LWS_VISIBLE LWS_EXTERN const struct lws_protocol_vhost_options *
+lws_pvo_search(const struct lws_protocol_vhost_options *pvo, const char *name);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_protocol_init(struct lws_context *context);
+
+#ifdef LWS_WITH_PLUGINS
+
+/* PLUGINS implies LIBUV */
+
+#define LWS_PLUGIN_API_MAGIC 180
+
+/** struct lws_plugin_capability - how a plugin introduces itself to lws */
+struct lws_plugin_capability {
+	unsigned int api_magic;	/**< caller fills this in, plugin fills rest */
+	const struct lws_protocols *protocols; /**< array of supported protocols provided by plugin */
+	int count_protocols; /**< how many protocols */
+	const struct lws_extension *extensions; /**< array of extensions provided by plugin */
+	int count_extensions; /**< how many extensions */
+};
+
+typedef int (*lws_plugin_init_func)(struct lws_context *,
+				    struct lws_plugin_capability *);
+typedef int (*lws_plugin_destroy_func)(struct lws_context *);
+
+/** struct lws_plugin */
+struct lws_plugin {
+	struct lws_plugin *list; /**< linked list */
+#if (UV_VERSION_MAJOR > 0)
+	uv_lib_t lib; /**< shared library pointer */
+#else
+	void *l; /**< so we can compile on ancient libuv */
+#endif
+	char name[64]; /**< name of the plugin */
+	struct lws_plugin_capability caps; /**< plugin capabilities */
+};
+
+#endif
+
+///@}
+
+
+/*! \defgroup generic-sessions plugin: generic-sessions
+ * \ingroup Protocols-and-Plugins
+ *
+ * ##Plugin Generic-sessions related
+ *
+ * generic-sessions plugin provides a reusable, generic session and login /
+ * register / forgot password framework including email verification.
+ */
+///@{
+
+#define LWSGS_EMAIL_CONTENT_SIZE 16384
+/**< Maximum size of email we might send */
+
+/* SHA-1 binary and hexified versions */
+/** typedef struct lwsgw_hash_bin */
+typedef struct { unsigned char bin[20]; /**< binary representation of hash */} lwsgw_hash_bin;
+/** typedef struct lwsgw_hash */
+typedef struct { char id[41]; /**< ascii hex representation of hash */ } lwsgw_hash;
+
+/** enum lwsgs_auth_bits */
+enum lwsgs_auth_bits {
+	LWSGS_AUTH_LOGGED_IN = 1, /**< user is logged in as somebody */
+	LWSGS_AUTH_ADMIN = 2,	/**< logged in as the admin user */
+	LWSGS_AUTH_VERIFIED = 4,  /**< user has verified his email */
+	LWSGS_AUTH_FORGOT_FLOW = 8,	/**< he just completed "forgot password" flow */
+};
+
+/** struct lws_session_info - information about user session status */
+struct lws_session_info {
+	char username[32]; /**< username logged in as, or empty string */
+	char email[100]; /**< email address associated with login, or empty string */
+	char ip[72]; /**< ip address session was started from */
+	unsigned int mask; /**< access rights mask associated with session
+	 	 	    * see enum lwsgs_auth_bits */
+	char session[42]; /**< session id string, usable as opaque uid when not logged in */
+};
+
+/** enum lws_gs_event */
+enum lws_gs_event {
+	LWSGSE_CREATED, /**< a new user was created */
+	LWSGSE_DELETED  /**< an existing user was deleted */
+};
+
+/** struct lws_gs_event_args */
+struct lws_gs_event_args {
+	enum lws_gs_event event; /**< which event happened */
+	const char *username; /**< which username the event happened to */
+	const char *email; /**< the email address of that user */
+};
+
+///@}
+
+
+/*! \defgroup context-and-vhost context and vhost related functions
+ * ##Context and Vhost releated functions
+ * \ingroup lwsapi
+ *
+ *
+ *  LWS requires that there is one context, in which you may define multiple
+ *  vhosts.  Each vhost is a virtual host, with either its own listen port
+ *  or sharing an existing one.  Each vhost has its own SSL context that can
+ *  be set up individually or left disabled.
+ *
+ *  If you don't care about multiple "site" support, you can ignore it and
+ *  lws will create a single default vhost at context creation time.
+ */
+///@{
+
+/*
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+
+/** enum lws_context_options - context and vhost options */
+enum lws_context_options {
+	LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT	= (1 << 1) |
+								  (1 << 12),
+	/**< (VH) Don't allow the connection unless the client has a
+	 * client cert that we recognize; provides
+	 * LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT */
+	LWS_SERVER_OPTION_SKIP_SERVER_CANONICAL_NAME		= (1 << 2),
+	/**< (CTX) Don't try to get the server's hostname */
+	LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT		= (1 << 3) |
+								  (1 << 12),
+	/**< (VH) Allow non-SSL (plaintext) connections on the same
+	 * port as SSL is listening... undermines the security of SSL;
+	 * provides  LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT */
+	LWS_SERVER_OPTION_LIBEV					= (1 << 4),
+	/**< (CTX) Use libev event loop */
+	LWS_SERVER_OPTION_DISABLE_IPV6				= (1 << 5),
+	/**< (VH) Disable IPV6 support */
+	LWS_SERVER_OPTION_DISABLE_OS_CA_CERTS			= (1 << 6),
+	/**< (VH) Don't load OS CA certs, you will need to load your
+	 * own CA cert(s) */
+	LWS_SERVER_OPTION_PEER_CERT_NOT_REQUIRED		= (1 << 7),
+	/**< (VH) Accept connections with no valid Cert (eg, selfsigned) */
+	LWS_SERVER_OPTION_VALIDATE_UTF8				= (1 << 8),
+	/**< (VH) Check UT-8 correctness */
+	LWS_SERVER_OPTION_SSL_ECDH				= (1 << 9) |
+								  (1 << 12),
+	/**< (VH)  initialize ECDH ciphers */
+	LWS_SERVER_OPTION_LIBUV					= (1 << 10),
+	/**< (CTX)  Use libuv event loop */
+	LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS		= (1 << 11) |
+								  (1 << 12),
+	/**< (VH) Use http redirect to force http to https
+	 * (deprecated: use mount redirection) */
+	LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT			= (1 << 12),
+	/**< (CTX) Initialize the SSL library at all */
+	LWS_SERVER_OPTION_EXPLICIT_VHOSTS			= (1 << 13),
+	/**< (CTX) Only create the context when calling context
+	 * create api, implies user code will create its own vhosts */
+	LWS_SERVER_OPTION_UNIX_SOCK				= (1 << 14),
+	/**< (VH) Use Unix socket */
+	LWS_SERVER_OPTION_STS					= (1 << 15),
+	/**< (VH) Send Strict Transport Security header, making
+	 * clients subsequently go to https even if user asked for http */
+	LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY			= (1 << 16),
+	/**< (VH) Enable LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE to take effect */
+	LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE			= (1 << 17),
+	/**< (VH) if set, only ipv6 allowed on the vhost */
+	LWS_SERVER_OPTION_UV_NO_SIGSEGV_SIGFPE_SPIN		= (1 << 18),
+	/**< (CTX) Libuv only: Do not spin on SIGSEGV / SIGFPE.  A segfault
+	 * normally makes the lib spin so you can attach a debugger to it
+	 * even if it happened without a debugger in place.  You can disable
+	 * that by giving this option.
+	 */
+	LWS_SERVER_OPTION_JUST_USE_RAW_ORIGIN			= (1 << 19),
+	/**< For backwards-compatibility reasons, by default
+	 * lws prepends "http://" to the origin you give in the client
+	 * connection info struct.  If you give this flag when you create
+	 * the context, only the string you give in the client connect
+	 * info for .origin (if any) will be used directly.
+	 */
+	LWS_SERVER_OPTION_FALLBACK_TO_RAW			= (1 << 20),
+	/**< (VH) if invalid http is coming in the first line,  */
+	LWS_SERVER_OPTION_LIBEVENT				= (1 << 21),
+	/**< (CTX) Use libevent event loop */
+	LWS_SERVER_OPTION_ONLY_RAW				= (1 << 22),
+	/**< (VH) All connections to this vhost / port are RAW as soon as
+	 * the connection is accepted, no HTTP is going to be coming.
+	 */
+	LWS_SERVER_OPTION_ALLOW_LISTEN_SHARE			= (1 << 23),
+	/**< (VH) Set to allow multiple listen sockets on one interface +
+	 * address + port.  The default is to strictly allow only one
+	 * listen socket at a time.  This is automatically selected if you
+	 * have multiple service threads.
+	 */
+	LWS_SERVER_OPTION_CREATE_VHOST_SSL_CTX			= (1 << 24),
+	/**< (VH) Force setting up the vhost SSL_CTX, even though the user
+	 * code doesn't explicitly provide a cert in the info struct.  It
+	 * implies the user code is going to provide a cert at the
+	 * LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS callback, which
+	 * provides the vhost SSL_CTX * in the user parameter.
+	 */
+	LWS_SERVER_OPTION_SKIP_PROTOCOL_INIT			= (1 << 25),
+	/**< (VH) You probably don't want this.  It forces this vhost to not
+	 * call LWS_CALLBACK_PROTOCOL_INIT on its protocols.  It's used in the
+	 * special case of a temporary vhost bound to a single protocol.
+	 */
+	LWS_SERVER_OPTION_IGNORE_MISSING_CERT			= (1 << 26),
+	/**< (VH) Don't fail if the vhost TLS cert or key are missing, just
+	 * continue.  The vhost won't be able to serve anything, but if for
+	 * example the ACME plugin was configured to fetch a cert, this lets
+	 * you bootstrap your vhost from having no cert to start with.
+	 */
+
+	/****** add new things just above ---^ ******/
+};
+
+#define lws_check_opt(c, f) (((c) & (f)) == (f))
+
+struct lws_plat_file_ops;
+
+/** struct lws_context_creation_info - parameters to create context and /or vhost with
+ *
+ * This is also used to create vhosts.... if LWS_SERVER_OPTION_EXPLICIT_VHOSTS
+ * is not given, then for backwards compatibility one vhost is created at
+ * context-creation time using the info from this struct.
+ *
+ * If LWS_SERVER_OPTION_EXPLICIT_VHOSTS is given, then no vhosts are created
+ * at the same time as the context, they are expected to be created afterwards.
+ */
+struct lws_context_creation_info {
+	int port;
+	/**< VHOST: Port to listen on. Use CONTEXT_PORT_NO_LISTEN to suppress
+	 * listening for a client. Use CONTEXT_PORT_NO_LISTEN_SERVER if you are
+	 * writing a server but you are using \ref sock-adopt instead of the
+	 * built-in listener.
+	 *
+	 * You can also set port to 0, in which case the kernel will pick
+	 * a random port that is not already in use.  You can find out what
+	 * port the vhost is listening on using lws_get_vhost_listen_port() */
+	const char *iface;
+	/**< VHOST: NULL to bind the listen socket to all interfaces, or the
+	 * interface name, eg, "eth2"
+	 * If options specifies LWS_SERVER_OPTION_UNIX_SOCK, this member is
+	 * the pathname of a UNIX domain socket. you can use the UNIX domain
+	 * sockets in abstract namespace, by prepending an at symbol to the
+	 * socket name. */
+	const struct lws_protocols *protocols;
+	/**< VHOST: Array of structures listing supported protocols and a protocol-
+	 * specific callback for each one.  The list is ended with an
+	 * entry that has a NULL callback pointer. */
+	const struct lws_extension *extensions;
+	/**< VHOST: NULL or array of lws_extension structs listing the
+	 * extensions this context supports. */
+	const struct lws_token_limits *token_limits;
+	/**< CONTEXT: NULL or struct lws_token_limits pointer which is initialized
+	 * with a token length limit for each possible WSI_TOKEN_ */
+	const char *ssl_private_key_password;
+	/**< VHOST: NULL or the passphrase needed for the private key. (For
+	 * backwards compatibility, this can also be used to pass the client
+	 * cert passphrase when setting up a vhost client SSL context, but it is
+	 * preferred to use .client_ssl_private_key_password for that.) */
+	const char *ssl_cert_filepath;
+	/**< VHOST: If libwebsockets was compiled to use ssl, and you want
+	 * to listen using SSL, set to the filepath to fetch the
+	 * server cert from, otherwise NULL for unencrypted.  (For backwards
+	 * compatibility, this can also be used to pass the client certificate
+	 * when setting up a vhost client SSL context, but it is preferred to
+	 * use .client_ssl_cert_filepath for that.) */
+	const char *ssl_private_key_filepath;
+	/**<  VHOST: filepath to private key if wanting SSL mode;
+	 * if this is set to NULL but ssl_cert_filepath is set, the
+	 * OPENSSL_CONTEXT_REQUIRES_PRIVATE_KEY callback is called
+	 * to allow setting of the private key directly via openSSL
+	 * library calls.   (For backwards compatibility, this can also be used
+	 * to pass the client cert private key filepath when setting up a
+	 * vhost client SSL context, but it is preferred to use
+	 * .client_ssl_private_key_filepath for that.) */
+	const char *ssl_ca_filepath;
+	/**< VHOST: CA certificate filepath or NULL.  (For backwards
+	 * compatibility, this can also be used to pass the client CA
+	 * filepath when setting up a vhost client SSL context,
+	 * but it is preferred to use .client_ssl_ca_filepath for that.) */
+	const char *ssl_cipher_list;
+	/**< VHOST: List of valid ciphers to use (eg,
+	 * "RC4-MD5:RC4-SHA:AES128-SHA:AES256-SHA:HIGH:!DSS:!aNULL"
+	 * or you can leave it as NULL to get "DEFAULT" (For backwards
+	 * compatibility, this can also be used to pass the client cipher
+	 * list when setting up a vhost client SSL context,
+	 * but it is preferred to use .client_ssl_cipher_list for that.)*/
+	const char *http_proxy_address;
+	/**< VHOST: If non-NULL, attempts to proxy via the given address.
+	 * If proxy auth is required, use format "username:password\@server:port" */
+	unsigned int http_proxy_port;
+	/**< VHOST: If http_proxy_address was non-NULL, uses this port */
+	int gid;
+	/**< CONTEXT: group id to change to after setting listen socket, or -1. */
+	int uid;
+	/**< CONTEXT: user id to change to after setting listen socket, or -1. */
+	unsigned int options;
+	/**< VHOST + CONTEXT: 0, or LWS_SERVER_OPTION_... bitfields */
+	void *user;
+	/**< VHOST + CONTEXT: optional user pointer that will be associated
+	 * with the context when creating the context (and can be retrieved by
+	 * lws_context_user(context), or with the vhost when creating the vhost
+	 * (and can be retrieved by lws_vhost_user(vhost)).  You will need to
+	 * use LWS_SERVER_OPTION_EXPLICIT_VHOSTS and create the vhost separately
+	 * if you care about giving the context and vhost different user pointer
+	 * values.
+	 */
+	int ka_time;
+	/**< CONTEXT: 0 for no TCP keepalive, otherwise apply this keepalive
+	 * timeout to all libwebsocket sockets, client or server */
+	int ka_probes;
+	/**< CONTEXT: if ka_time was nonzero, after the timeout expires how many
+	 * times to try to get a response from the peer before giving up
+	 * and killing the connection */
+	int ka_interval;
+	/**< CONTEXT: if ka_time was nonzero, how long to wait before each ka_probes
+	 * attempt */
+#if defined(LWS_WITH_TLS) && !defined(LWS_WITH_MBEDTLS)
+	SSL_CTX *provided_client_ssl_ctx;
+	/**< CONTEXT: If non-null, swap out libwebsockets ssl
+	  * implementation for the one provided by provided_ssl_ctx.
+	  * Libwebsockets no longer is responsible for freeing the context
+	  * if this option is selected. */
+#else /* maintain structure layout either way */
+	void *provided_client_ssl_ctx; /**< dummy if ssl disabled */
+#endif
+
+	short max_http_header_data;
+	/**< CONTEXT: The max amount of header payload that can be handled
+	 * in an http request (unrecognized header payload is dropped) */
+	short max_http_header_pool;
+	/**< CONTEXT: The max number of connections with http headers that
+	 * can be processed simultaneously (the corresponding memory is
+	 * allocated and deallocated dynamically as needed).  If the pool is
+	 * fully busy new incoming connections must wait for accept until one
+	 * becomes free. 0 = allow as many ah as number of availble fds for
+	 * the process */
+
+	unsigned int count_threads;
+	/**< CONTEXT: how many contexts to create in an array, 0 = 1 */
+	unsigned int fd_limit_per_thread;
+	/**< CONTEXT: nonzero means restrict each service thread to this
+	 * many fds, 0 means the default which is divide the process fd
+	 * limit by the number of threads. */
+	unsigned int timeout_secs;
+	/**< VHOST: various processes involving network roundtrips in the
+	 * library are protected from hanging forever by timeouts.  If
+	 * nonzero, this member lets you set the timeout used in seconds.
+	 * Otherwise a default timeout is used. */
+	const char *ecdh_curve;
+	/**< VHOST: if NULL, defaults to initializing server with "prime256v1" */
+	const char *vhost_name;
+	/**< VHOST: name of vhost, must match external DNS name used to
+	 * access the site, like "warmcat.com" as it's used to match
+	 * Host: header and / or SNI name for SSL. */
+	const char * const *plugin_dirs;
+	/**< CONTEXT: NULL, or NULL-terminated array of directories to
+	 * scan for lws protocol plugins at context creation time */
+	const struct lws_protocol_vhost_options *pvo;
+	/**< VHOST: pointer to optional linked list of per-vhost
+	 * options made accessible to protocols */
+	int keepalive_timeout;
+	/**< VHOST: (default = 0 = 5s) seconds to allow remote
+	 * client to hold on to an idle HTTP/1.1 connection */
+	const char *log_filepath;
+	/**< VHOST: filepath to append logs to... this is opened before
+	 *		any dropping of initial privileges */
+	const struct lws_http_mount *mounts;
+	/**< VHOST: optional linked list of mounts for this vhost */
+	const char *server_string;
+	/**< CONTEXT: string used in HTTP headers to identify server
+ *		software, if NULL, "libwebsockets". */
+	unsigned int pt_serv_buf_size;
+	/**< CONTEXT: 0 = default of 4096.  This buffer is used by
+	 * various service related features including file serving, it
+	 * defines the max chunk of file that can be sent at once.
+	 * At the risk of lws having to buffer failed large sends, it
+	 * can be increased to, eg, 128KiB to improve throughput. */
+	unsigned int max_http_header_data2;
+	/**< CONTEXT: if max_http_header_data is 0 and this
+	 * is nonzero, this will be used in place of the default.  It's
+	 * like this for compatibility with the original short version,
+	 * this is unsigned int length. */
+	long ssl_options_set;
+	/**< VHOST: Any bits set here will be set as SSL options */
+	long ssl_options_clear;
+	/**< VHOST: Any bits set here will be cleared as SSL options */
+	unsigned short ws_ping_pong_interval;
+	/**< CONTEXT: 0 for none, else interval in seconds between sending
+	 * PINGs on idle websocket connections.  When the PING is sent,
+	 * the PONG must come within the normal timeout_secs timeout period
+	 * or the connection will be dropped.
+	 * Any RX or TX traffic on the connection restarts the interval timer,
+	 * so a connection which always sends or receives something at intervals
+	 * less than the interval given here will never send PINGs / expect
+	 * PONGs.  Conversely as soon as the ws connection is established, an
+	 * idle connection will do the PING / PONG roundtrip as soon as
+	 * ws_ping_pong_interval seconds has passed without traffic
+	 */
+	const struct lws_protocol_vhost_options *headers;
+		/**< VHOST: pointer to optional linked list of per-vhost
+		 * canned headers that are added to server responses */
+
+	const struct lws_protocol_vhost_options *reject_service_keywords;
+	/**< CONTEXT: Optional list of keywords and rejection codes + text.
+	 *
+	 * The keywords are checked for existing in the user agent string.
+	 *
+	 * Eg, "badrobot" "404 Not Found"
+	 */
+	void *external_baggage_free_on_destroy;
+	/**< CONTEXT: NULL, or pointer to something externally malloc'd, that
+	 * should be freed when the context is destroyed.  This allows you to
+	 * automatically sync the freeing action to the context destruction
+	 * action, so there is no need for an external free() if the context
+	 * succeeded to create.
+	 */
+
+	const char *client_ssl_private_key_password;
+	/**< VHOST: Client SSL context init: NULL or the passphrase needed
+	 * for the private key */
+	const char *client_ssl_cert_filepath;
+	/**< VHOST: Client SSL context init:T he certificate the client
+	 * should present to the peer on connection */
+	const char *client_ssl_private_key_filepath;
+	/**<  VHOST: Client SSL context init: filepath to client private key
+	 * if this is set to NULL but client_ssl_cert_filepath is set, you
+	 * can handle the LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS
+	 * callback of protocols[0] to allow setting of the private key directly
+	 * via openSSL library calls */
+	const char *client_ssl_ca_filepath;
+	/**< VHOST: Client SSL context init: CA certificate filepath or NULL */
+	const char *client_ssl_cipher_list;
+	/**< VHOST: Client SSL context init: List of valid ciphers to use (eg,
+	* "RC4-MD5:RC4-SHA:AES128-SHA:AES256-SHA:HIGH:!DSS:!aNULL"
+	* or you can leave it as NULL to get "DEFAULT" */
+
+	const struct lws_plat_file_ops *fops;
+	/**< CONTEXT: NULL, or pointer to an array of fops structs, terminated
+	 * by a sentinel with NULL .open.
+	 *
+	 * If NULL, lws provides just the platform file operations struct for
+	 * backwards compatibility.
+	 */
+	int simultaneous_ssl_restriction;
+	/**< CONTEXT: 0 (no limit) or limit of simultaneous SSL sessions possible.*/
+	const char *socks_proxy_address;
+	/**< VHOST: If non-NULL, attempts to proxy via the given address.
+	 * If proxy auth is required, use format "username:password\@server:port" */
+	unsigned int socks_proxy_port;
+	/**< VHOST: If socks_proxy_address was non-NULL, uses this port */
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+	cap_value_t caps[4];
+	/**< CONTEXT: array holding Linux capabilities you want to
+	 * continue to be available to the server after it transitions
+	 * to a noprivileged user.  Usually none are needed but for, eg,
+	 * .bind_iface, CAP_NET_RAW is required.  This gives you a way
+	 * to still have the capability but drop root.
+	 */
+	char count_caps;
+	/**< CONTEXT: count of Linux capabilities in .caps[].  0 means
+	 * no capabilities will be inherited from root (the default) */
+#endif
+	int bind_iface;
+	/**< VHOST: nonzero to strictly bind sockets to the interface name in
+	 * .iface (eg, "eth2"), using SO_BIND_TO_DEVICE.
+	 *
+	 * Requires SO_BINDTODEVICE support from your OS and CAP_NET_RAW
+	 * capability.
+	 *
+	 * Notice that common things like access network interface IP from
+	 * your local machine use your lo / loopback interface and will be
+	 * disallowed by this.
+	 */
+	int ssl_info_event_mask;
+	/**< VHOST: mask of ssl events to be reported on LWS_CALLBACK_SSL_INFO
+	 * callback for connections on this vhost.  The mask values are of
+	 * the form SSL_CB_ALERT, defined in openssl/ssl.h.  The default of
+	 * 0 means no info events will be reported.
+	 */
+	unsigned int timeout_secs_ah_idle;
+	/**< VHOST: seconds to allow a client to hold an ah without using it.
+	 * 0 defaults to 10s. */
+	unsigned short ip_limit_ah;
+	/**< CONTEXT: max number of ah a single IP may use simultaneously
+	 *	      0 is no limit. This is a soft limit: if the limit is
+	 *	      reached, connections from that IP will wait in the ah
+	 *	      waiting list and not be able to acquire an ah until
+	 *	      a connection belonging to the IP relinquishes one it
+	 *	      already has.
+	 */
+	unsigned short ip_limit_wsi;
+	/**< CONTEXT: max number of wsi a single IP may use simultaneously.
+	 *	      0 is no limit.  This is a hard limit, connections from
+	 *	      the same IP will simply be dropped once it acquires the
+	 *	      amount of simultaneous wsi / accepted connections
+	 *	      given here.
+	 */
+	uint32_t	http2_settings[7];
+	/**< VHOST:  if http2_settings[0] is nonzero, the values given in
+	 *	      http2_settings[1]..[6] are used instead of the lws
+	 *	      platform default values.
+	 *	      Just leave all at 0 if you don't care.
+	 */
+	const char *error_document_404;
+	/**< VHOST: If non-NULL, when asked to serve a non-existent file,
+	 *          lws attempts to server this url path instead.  Eg,
+	 *          "/404.html" */
+	const char *alpn;
+	/**< CONTEXT: If non-NULL, default list of advertised alpn, comma-
+	 *	      separated
+	 *
+	 *     VHOST: If non-NULL, per-vhost list of advertised alpn, comma-
+	 *	      separated
+	 */
+	void **foreign_loops;
+	/**< CONTEXT: This is ignored if the context is not being started with
+	 *		an event loop, ie, .options has a flag like
+	 *		LWS_SERVER_OPTION_LIBUV.
+	 *
+	 *		NULL indicates lws should start its own even loop for
+	 *		each service thread, and deal with closing the loops
+	 *		when the context is destroyed.
+	 *
+	 *		Non-NULL means it points to an array of external
+	 *		("foreign") event loops that are to be used in turn for
+	 *		each service thread.  In the default case of 1 service
+	 *		thread, it can just point to one foreign event loop.
+	 */
+	void (*signal_cb)(void *event_lib_handle, int signum);
+	/**< CONTEXT: NULL: default signal handling.  Otherwise this receives
+	 *		the signal handler callback.  event_lib_handle is the
+	 *		native event library signal handle, eg uv_signal_t *
+	 *		for libuv.
+	 */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility
+	 *
+	 * The below is to ensure later library versions with new
+	 * members added above will see 0 (default) even if the app
+	 * was not built against the newer headers.
+	 */
+	struct lws_context **pcontext;
+	/**< CONTEXT: if non-NULL, at the end of context destroy processing,
+	 * the pointer pointed to by pcontext is written with NULL.  You can
+	 * use this to let foreign event loops know that lws context destruction
+	 * is fully completed.
+	 */
+
+	void *_unused[4]; /**< dummy */
+};
+
+/**
+ * lws_create_context() - Create the websocket handler
+ * \param info:	pointer to struct with parameters
+ *
+ *	This function creates the listening socket (if serving) and takes care
+ *	of all initialization in one step.
+ *
+ *	If option LWS_SERVER_OPTION_EXPLICIT_VHOSTS is given, no vhost is
+ *	created; you're expected to create your own vhosts afterwards using
+ *	lws_create_vhost().  Otherwise a vhost named "default" is also created
+ *	using the information in the vhost-related members, for compatibility.
+ *
+ *	After initialization, it returns a struct lws_context * that
+ *	represents this server.  After calling, user code needs to take care
+ *	of calling lws_service() with the context pointer to get the
+ *	server's sockets serviced.  This must be done in the same process
+ *	context as the initialization call.
+ *
+ *	The protocol callback functions are called for a handful of events
+ *	including http requests coming in, websocket connections becoming
+ *	established, and data arriving; it's also called periodically to allow
+ *	async transmission.
+ *
+ *	HTTP requests are sent always to the FIRST protocol in protocol, since
+ *	at that time websocket protocol has not been negotiated.  Other
+ *	protocols after the first one never see any HTTP callback activity.
+ *
+ *	The server created is a simple http server by default; part of the
+ *	websocket standard is upgrading this http connection to a websocket one.
+ *
+ *	This allows the same server to provide files like scripts and favicon /
+ *	images or whatever over http and dynamic data over websockets all in
+ *	one place; they're all handled in the user callback.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_context *
+lws_create_context(const struct lws_context_creation_info *info);
+
+
+/**
+ * lws_context_destroy() - Destroy the websocket context
+ * \param context:	Websocket context
+ *
+ *	This function closes any active connections and then frees the
+ *	context.  After calling this, any further use of the context is
+ *	undefined.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_context_destroy(struct lws_context *context);
+
+typedef int (*lws_reload_func)(void);
+
+/**
+ * lws_context_deprecate() - Deprecate the websocket context
+ *
+ * \param context:	Websocket context
+ * \param cb: Callback notified when old context listen sockets are closed
+ *
+ *	This function is used on an existing context before superceding it
+ *	with a new context.
+ *
+ *	It closes any listen sockets in the context, so new connections are
+ *	not possible.
+ *
+ *	And it marks the context to be deleted when the number of active
+ *	connections into it falls to zero.
+ *
+ *	Otherwise if you attach the deprecated context to the replacement
+ *	context when it has been created using lws_context_attach_deprecated()
+ *	both any deprecated and the new context will service their connections.
+ *
+ *	This is aimed at allowing seamless configuration reloads.
+ *
+ *	The callback cb will be called after the listen sockets are actually
+ *	closed and may be reopened.  In the callback the new context should be
+ *	configured and created.  (With libuv, socket close happens async after
+ *	more loop events).
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_context_deprecate(struct lws_context *context, lws_reload_func cb);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_context_is_deprecated(struct lws_context *context);
+
+/**
+ * lws_set_proxy() - Setups proxy to lws_context.
+ * \param vhost:	pointer to struct lws_vhost you want set proxy for
+ * \param proxy: pointer to c string containing proxy in format address:port
+ *
+ * Returns 0 if proxy string was parsed and proxy was setup.
+ * Returns -1 if proxy is NULL or has incorrect format.
+ *
+ * This is only required if your OS does not provide the http_proxy
+ * environment variable (eg, OSX)
+ *
+ *   IMPORTANT! You should call this function right after creation of the
+ *   lws_context and before call to connect. If you call this
+ *   function after connect behavior is undefined.
+ *   This function will override proxy settings made on lws_context
+ *   creation with genenv() call.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_set_proxy(struct lws_vhost *vhost, const char *proxy);
+
+/**
+ * lws_set_socks() - Setup socks to lws_context.
+ * \param vhost:	pointer to struct lws_vhost you want set socks for
+ * \param socks: pointer to c string containing socks in format address:port
+ *
+ * Returns 0 if socks string was parsed and socks was setup.
+ * Returns -1 if socks is NULL or has incorrect format.
+ *
+ * This is only required if your OS does not provide the socks_proxy
+ * environment variable (eg, OSX)
+ *
+ *   IMPORTANT! You should call this function right after creation of the
+ *   lws_context and before call to connect. If you call this
+ *   function after connect behavior is undefined.
+ *   This function will override proxy settings made on lws_context
+ *   creation with genenv() call.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_set_socks(struct lws_vhost *vhost, const char *socks);
+
+struct lws_vhost;
+
+/**
+ * lws_create_vhost() - Create a vhost (virtual server context)
+ * \param context:	pointer to result of lws_create_context()
+ * \param info:		pointer to struct with parameters
+ *
+ * This function creates a virtual server (vhost) using the vhost-related
+ * members of the info struct.  You can create many vhosts inside one context
+ * if you created the context with the option LWS_SERVER_OPTION_EXPLICIT_VHOSTS
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_vhost *
+lws_create_vhost(struct lws_context *context,
+		 const struct lws_context_creation_info *info);
+
+/**
+ * lws_vhost_destroy() - Destroy a vhost (virtual server context)
+ *
+ * \param vh:	pointer to result of lws_create_vhost()
+ *
+ * This function destroys a vhost.  Normally, if you just want to exit,
+ * then lws_destroy_context() will take care of everything.  If you want
+ * to destroy an individual vhost and all connections and allocations, you
+ * can do it with this.
+ *
+ * If the vhost has a listen sockets shared by other vhosts, it will be given
+ * to one of the vhosts sharing it rather than closed.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_vhost_destroy(struct lws_vhost *vh);
+
+/**
+ * lwsws_get_config_globals() - Parse a JSON server config file
+ * \param info:		pointer to struct with parameters
+ * \param d:		filepath of the config file
+ * \param config_strings: storage for the config strings extracted from JSON,
+ * 			  the pointer is incremented as strings are stored
+ * \param len:		pointer to the remaining length left in config_strings
+ *			  the value is decremented as strings are stored
+ *
+ * This function prepares a n lws_context_creation_info struct with global
+ * settings from a file d.
+ *
+ * Requires CMake option LWS_WITH_LEJP_CONF to have been enabled
+ */
+LWS_VISIBLE LWS_EXTERN int
+lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
+			 char **config_strings, int *len);
+
+/**
+ * lwsws_get_config_vhosts() - Create vhosts from a JSON server config file
+ * \param context:	pointer to result of lws_create_context()
+ * \param info:		pointer to struct with parameters
+ * \param d:		filepath of the config file
+ * \param config_strings: storage for the config strings extracted from JSON,
+ * 			  the pointer is incremented as strings are stored
+ * \param len:		pointer to the remaining length left in config_strings
+ *			  the value is decremented as strings are stored
+ *
+ * This function creates vhosts into a context according to the settings in
+ *JSON files found in directory d.
+ *
+ * Requires CMake option LWS_WITH_LEJP_CONF to have been enabled
+ */
+LWS_VISIBLE LWS_EXTERN int
+lwsws_get_config_vhosts(struct lws_context *context,
+			struct lws_context_creation_info *info, const char *d,
+			char **config_strings, int *len);
+
+/** lws_vhost_get() - \deprecated deprecated: use lws_get_vhost() */
+LWS_VISIBLE LWS_EXTERN struct lws_vhost *
+lws_vhost_get(struct lws *wsi) LWS_WARN_DEPRECATED;
+
+/**
+ * lws_get_vhost() - return the vhost a wsi belongs to
+ *
+ * \param wsi: which connection
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_vhost *
+lws_get_vhost(struct lws *wsi);
+
+/**
+ * lws_get_vhost_name() - returns the name of a vhost
+ *
+ * \param vhost: which vhost
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_get_vhost_name(struct lws_vhost *vhost);
+
+/**
+ * lws_get_vhost_port() - returns the port a vhost listens on, or -1
+ *
+ * \param vhost: which vhost
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_get_vhost_port(struct lws_vhost *vhost);
+
+/**
+ * lws_get_vhost_user() - returns the user pointer for the vhost
+ *
+ * \param vhost: which vhost
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_get_vhost_user(struct lws_vhost *vhost);
+
+/**
+ * lws_get_vhost_iface() - returns the binding for the vhost listen socket
+ *
+ * \param vhost: which vhost
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_get_vhost_iface(struct lws_vhost *vhost);
+
+/**
+ * lws_json_dump_vhost() - describe vhost state and stats in JSON
+ *
+ * \param vh: the vhost
+ * \param buf: buffer to fill with JSON
+ * \param len: max length of buf
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_json_dump_vhost(const struct lws_vhost *vh, char *buf, int len);
+
+/**
+ * lws_json_dump_context() - describe context state and stats in JSON
+ *
+ * \param context: the context
+ * \param buf: buffer to fill with JSON
+ * \param len: max length of buf
+ * \param hide_vhosts: nonzero to not provide per-vhost mount etc information
+ *
+ * Generates a JSON description of vhost state into buf
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_json_dump_context(const struct lws_context *context, char *buf, int len,
+		      int hide_vhosts);
+
+/**
+ * lws_vhost_user() - get the user data associated with the vhost
+ * \param vhost: Websocket vhost
+ *
+ * This returns the optional user pointer that can be attached to
+ * a vhost when it was created.  Lws never dereferences this pointer, it only
+ * sets it when the vhost is created, and returns it using this api.
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_vhost_user(struct lws_vhost *vhost);
+
+/**
+ * lws_context_user() - get the user data associated with the context
+ * \param context: Websocket context
+ *
+ * This returns the optional user allocation that can be attached to
+ * the context the sockets live in at context_create time.  It's a way
+ * to let all sockets serviced in the same context share data without
+ * using globals statics in the user code.
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_context_user(struct lws_context *context);
+
+/*! \defgroup vhost-mounts Vhost mounts and options
+ * \ingroup context-and-vhost-creation
+ *
+ * ##Vhost mounts and options
+ */
+///@{
+/** struct lws_protocol_vhost_options - linked list of per-vhost protocol
+ * 					name=value options
+ *
+ * This provides a general way to attach a linked-list of name=value pairs,
+ * which can also have an optional child link-list using the options member.
+ */
+struct lws_protocol_vhost_options {
+	const struct lws_protocol_vhost_options *next; /**< linked list */
+	const struct lws_protocol_vhost_options *options; /**< child linked-list of more options for this node */
+	const char *name; /**< name of name=value pair */
+	const char *value; /**< value of name=value pair */
+};
+
+/** enum lws_mount_protocols
+ * This specifies the mount protocol for a mountpoint, whether it is to be
+ * served from a filesystem, or it is a cgi etc.
+ */
+enum lws_mount_protocols {
+	LWSMPRO_HTTP		= 0, /**< http reverse proxy */
+	LWSMPRO_HTTPS		= 1, /**< https reverse proxy */
+	LWSMPRO_FILE		= 2, /**< serve from filesystem directory */
+	LWSMPRO_CGI		= 3, /**< pass to CGI to handle */
+	LWSMPRO_REDIR_HTTP	= 4, /**< redirect to http:// url */
+	LWSMPRO_REDIR_HTTPS	= 5, /**< redirect to https:// url */
+	LWSMPRO_CALLBACK	= 6, /**< hand by named protocol's callback */
+};
+
+/** struct lws_http_mount
+ *
+ * arguments for mounting something in a vhost's url namespace
+ */
+struct lws_http_mount {
+	const struct lws_http_mount *mount_next;
+	/**< pointer to next struct lws_http_mount */
+	const char *mountpoint;
+	/**< mountpoint in http pathspace, eg, "/" */
+	const char *origin;
+	/**< path to be mounted, eg, "/var/www/warmcat.com" */
+	const char *def;
+	/**< default target, eg, "index.html" */
+	const char *protocol;
+	/**<"protocol-name" to handle mount */
+
+	const struct lws_protocol_vhost_options *cgienv;
+	/**< optional linked-list of cgi options.  These are created
+	 * as environment variables for the cgi process
+	 */
+	const struct lws_protocol_vhost_options *extra_mimetypes;
+	/**< optional linked-list of mimetype mappings */
+	const struct lws_protocol_vhost_options *interpret;
+	/**< optional linked-list of files to be interpreted */
+
+	int cgi_timeout;
+	/**< seconds cgi is allowed to live, if cgi://mount type */
+	int cache_max_age;
+	/**< max-age for reuse of client cache of files, seconds */
+	unsigned int auth_mask;
+	/**< bits set here must be set for authorized client session */
+
+	unsigned int cache_reusable:1; /**< set if client cache may reuse this */
+	unsigned int cache_revalidate:1; /**< set if client cache should revalidate on use */
+	unsigned int cache_intermediaries:1; /**< set if intermediaries are allowed to cache */
+
+	unsigned char origin_protocol; /**< one of enum lws_mount_protocols */
+	unsigned char mountpoint_len; /**< length of mountpoint string */
+
+	const char *basic_auth_login_file;
+	/**<NULL, or filepath to use to check basic auth logins against */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility
+	 *
+	 * The below is to ensure later library versions with new
+	 * members added above will see 0 (default) even if the app
+	 * was not built against the newer headers.
+	 */
+
+	void *_unused[2]; /**< dummy */
+};
+///@}
+///@}
+
+/*! \defgroup client Client related functions
+ * ##Client releated functions
+ * \ingroup lwsapi
+ *
+ * */
+///@{
+
+/** enum lws_client_connect_ssl_connection_flags - flags that may be used
+ * with struct lws_client_connect_info ssl_connection member to control if
+ * and how SSL checks apply to the client connection being created
+ */
+
+enum lws_client_connect_ssl_connection_flags {
+	LCCSCF_USE_SSL 				= (1 << 0),
+	LCCSCF_ALLOW_SELFSIGNED			= (1 << 1),
+	LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK	= (1 << 2),
+	LCCSCF_ALLOW_EXPIRED			= (1 << 3),
+
+	LCCSCF_PIPELINE				= (1 << 16),
+		/**< Serialize / pipeline multiple client connections
+		 * on a single connection where possible.
+		 *
+		 * HTTP/1.0: possible if Keep-Alive: yes sent by server
+		 * HTTP/1.1: always possible... uses pipelining
+		 * HTTP/2:   always possible... uses parallel streams
+		 * */
+};
+
+/** struct lws_client_connect_info - parameters to connect with when using
+ *				    lws_client_connect_via_info() */
+
+struct lws_client_connect_info {
+	struct lws_context *context;
+	/**< lws context to create connection in */
+	const char *address;
+	/**< remote address to connect to */
+	int port;
+	/**< remote port to connect to */
+	int ssl_connection;
+	/**< 0, or a combination of LCCSCF_ flags */
+	const char *path;
+	/**< uri path */
+	const char *host;
+	/**< content of host header */
+	const char *origin;
+	/**< content of origin header */
+	const char *protocol;
+	/**< list of ws protocols we could accept */
+	int ietf_version_or_minus_one;
+	/**< deprecated: currently leave at 0 or -1 */
+	void *userdata;
+	/**< if non-NULL, use this as wsi user_data instead of malloc it */
+	const void *client_exts;
+	/**< UNUSED... provide in info.extensions at context creation time */
+	const char *method;
+	/**< if non-NULL, do this http method instead of ws[s] upgrade.
+	 * use "GET" to be a simple http client connection.  "RAW" gets
+	 * you a connected socket that lws itself will leave alone once
+	 * connected. */
+	struct lws *parent_wsi;
+	/**< if another wsi is responsible for this connection, give it here.
+	 * this is used to make sure if the parent closes so do any
+	 * child connections first. */
+	const char *uri_replace_from;
+	/**< if non-NULL, when this string is found in URIs in
+	 * text/html content-encoding, it's replaced with uri_replace_to */
+	const char *uri_replace_to;
+	/**< see uri_replace_from */
+	struct lws_vhost *vhost;
+	/**< vhost to bind to (used to determine related SSL_CTX) */
+	struct lws **pwsi;
+	/**< if not NULL, store the new wsi here early in the connection
+	 * process.  Although we return the new wsi, the call to create the
+	 * client connection does progress the connection somewhat and may
+	 * meet an error that will result in the connection being scrubbed and
+	 * NULL returned.  While the wsi exists though, he may process a
+	 * callback like CLIENT_CONNECTION_ERROR with his wsi: this gives the
+	 * user callback a way to identify which wsi it is that faced the error
+	 * even before the new wsi is returned and even if ultimately no wsi
+	 * is returned.
+	 */
+	const char *iface;
+	/**< NULL to allow routing on any interface, or interface name or IP
+	 * to bind the socket to */
+	const char *local_protocol_name;
+	/**< NULL: .protocol is used both to select the local protocol handler
+	 *         to bind to and as the list of remote ws protocols we could
+	 *         accept.
+	 *   non-NULL: this protocol name is used to bind the connection to
+	 *             the local protocol handler.  .protocol is used for the
+	 *             list of remote ws protocols we could accept */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility
+	 *
+	 * The below is to ensure later library versions with new
+	 * members added above will see 0 (default) even if the app
+	 * was not built against the newer headers.
+	 */
+	const char *alpn;
+	/* NULL: allow lws default ALPN list, from vhost if present or from
+	 *       list of roles built into lws
+	 * non-NULL: require one from provided comma-separated list of alpn
+	 *           tokens
+	 */
+
+	void *_unused[4]; /**< dummy */
+};
+
+/**
+ * lws_client_connect_via_info() - Connect to another websocket server
+ * \param ccinfo: pointer to lws_client_connect_info struct
+ *
+ *	This function creates a connection to a remote server using the
+ *	information provided in ccinfo.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_client_connect_via_info(struct lws_client_connect_info * ccinfo);
+
+/**
+ * lws_client_connect() - Connect to another websocket server
+ * 		\deprecated DEPRECATED use lws_client_connect_via_info
+ * \param clients:	Websocket context
+ * \param address:	Remote server address, eg, "myserver.com"
+ * \param port:	Port to connect to on the remote server, eg, 80
+ * \param ssl_connection:	0 = ws://, 1 = wss:// encrypted, 2 = wss:// allow self
+ *			signed certs
+ * \param path:	Websocket path on server
+ * \param host:	Hostname on server
+ * \param origin:	Socket origin name
+ * \param protocol:	Comma-separated list of protocols being asked for from
+ *		the server, or just one.  The server will pick the one it
+ *		likes best.  If you don't want to specify a protocol, which is
+ *		legal, use NULL here.
+ * \param ietf_version_or_minus_one: -1 to ask to connect using the default, latest
+ *		protocol supported, or the specific protocol ordinal
+ *
+ *	This function creates a connection to a remote server
+ */
+/* deprecated, use lws_client_connect_via_info() */
+LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
+lws_client_connect(struct lws_context *clients, const char *address,
+		   int port, int ssl_connection, const char *path,
+		   const char *host, const char *origin, const char *protocol,
+		   int ietf_version_or_minus_one) LWS_WARN_DEPRECATED;
+/* deprecated, use lws_client_connect_via_info() */
+/**
+ * lws_client_connect_extended() - Connect to another websocket server
+ * 			\deprecated DEPRECATED use lws_client_connect_via_info
+ * \param clients:	Websocket context
+ * \param address:	Remote server address, eg, "myserver.com"
+ * \param port:	Port to connect to on the remote server, eg, 80
+ * \param ssl_connection:	0 = ws://, 1 = wss:// encrypted, 2 = wss:// allow self
+ *			signed certs
+ * \param path:	Websocket path on server
+ * \param host:	Hostname on server
+ * \param origin:	Socket origin name
+ * \param protocol:	Comma-separated list of protocols being asked for from
+ *		the server, or just one.  The server will pick the one it
+ *		likes best.
+ * \param ietf_version_or_minus_one: -1 to ask to connect using the default, latest
+ *		protocol supported, or the specific protocol ordinal
+ * \param userdata: Pre-allocated user data
+ *
+ *	This function creates a connection to a remote server
+ */
+LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
+lws_client_connect_extended(struct lws_context *clients, const char *address,
+			    int port, int ssl_connection, const char *path,
+			    const char *host, const char *origin,
+			    const char *protocol, int ietf_version_or_minus_one,
+			    void *userdata) LWS_WARN_DEPRECATED;
+
+/**
+ * lws_init_vhost_client_ssl() - also enable client SSL on an existing vhost
+ *
+ * \param info: client ssl related info
+ * \param vhost: which vhost to initialize client ssl operations on
+ *
+ * You only need to call this if you plan on using SSL client connections on
+ * the vhost.  For non-SSL client connections, it's not necessary to call this.
+ *
+ * The following members of info are used during the call
+ *
+ *	 - options must have LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT set,
+ *	     otherwise the call does nothing
+ *	 - provided_client_ssl_ctx must be NULL to get a generated client
+ *	     ssl context, otherwise you can pass a prepared one in by setting it
+ *	 - ssl_cipher_list may be NULL or set to the client valid cipher list
+ *	 - ssl_ca_filepath may be NULL or client cert filepath
+ *	 - ssl_cert_filepath may be NULL or client cert filepath
+ *	 - ssl_private_key_filepath may be NULL or client cert private key
+ *
+ * You must create your vhost explicitly if you want to use this, so you have
+ * a pointer to the vhost.  Create the context first with the option flag
+ * LWS_SERVER_OPTION_EXPLICIT_VHOSTS and then call lws_create_vhost() with
+ * the same info struct.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_init_vhost_client_ssl(const struct lws_context_creation_info *info,
+			  struct lws_vhost *vhost);
+/**
+ * lws_http_client_read() - consume waiting received http client data
+ *
+ * \param wsi: client connection
+ * \param buf: pointer to buffer pointer - fill with pointer to your buffer
+ * \param len: pointer to chunk length - fill with max length of buffer
+ *
+ * This is called when the user code is notified client http data has arrived.
+ * The user code may choose to delay calling it to consume the data, for example
+ * waiting until an onward connection is writeable.
+ *
+ * For non-chunked connections, up to len bytes of buf are filled with the
+ * received content.  len is set to the actual amount filled before return.
+ *
+ * For chunked connections, the linear buffer content contains the chunking
+ * headers and it cannot be passed in one lump.  Instead, this function will
+ * call back LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ with in pointing to the
+ * chunk start and len set to the chunk length.  There will be as many calls
+ * as there are chunks or partial chunks in the buffer.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_http_client_read(struct lws *wsi, char **buf, int *len);
+
+/**
+ * lws_http_client_http_response() - get last HTTP response code
+ *
+ * \param wsi: client connection
+ *
+ * Returns the last server response code, eg, 200 for client http connections.
+ *
+ * You should capture this during the LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP
+ * callback, because after that the memory reserved for storing the related
+ * headers is freed and this value is lost.
+ */
+LWS_VISIBLE LWS_EXTERN unsigned int
+lws_http_client_http_response(struct lws *wsi);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_client_http_body_pending(struct lws *wsi, int something_left_to_send);
+
+/**
+ * lws_client_http_body_pending() - control if client connection neeeds to send body
+ *
+ * \param wsi: client connection
+ * \param something_left_to_send: nonzero if need to send more body, 0 (default)
+ * 				if nothing more to send
+ *
+ * If you will send payload data with your HTTP client connection, eg, for POST,
+ * when you set the related http headers in
+ * LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER callback you should also call
+ * this API with something_left_to_send nonzero, and call
+ * lws_callback_on_writable(wsi);
+ *
+ * After sending the headers, lws will call your callback with
+ * LWS_CALLBACK_CLIENT_HTTP_WRITEABLE reason when writable.  You can send the
+ * next part of the http body payload, calling lws_callback_on_writable(wsi);
+ * if there is more to come, or lws_client_http_body_pending(wsi, 0); to
+ * let lws know the last part is sent and the connection can move on.
+ */
+
+///@}
+
+/** \defgroup service Built-in service loop entry
+ *
+ * ##Built-in service loop entry
+ *
+ * If you're not using libev / libuv, these apis are needed to enter the poll()
+ * wait in lws and service any connections with pending events.
+ */
+///@{
+
+/**
+ * lws_service() - Service any pending websocket activity
+ * \param context:	Websocket context
+ * \param timeout_ms:	Timeout for poll; 0 means return immediately if nothing needed
+ *		service otherwise block and service immediately, returning
+ *		after the timeout if nothing needed service.
+ *
+ *	This function deals with any pending websocket traffic, for three
+ *	kinds of event.  It handles these events on both server and client
+ *	types of connection the same.
+ *
+ *	1) Accept new connections to our context's server
+ *
+ *	2) Call the receive callback for incoming frame data received by
+ *	    server or client connections.
+ *
+ *	You need to call this service function periodically to all the above
+ *	functions to happen; if your application is single-threaded you can
+ *	just call it in your main event loop.
+ *
+ *	Alternatively you can fork a new process that asynchronously handles
+ *	calling this service in a loop.  In that case you are happy if this
+ *	call blocks your thread until it needs to take care of something and
+ *	would call it with a large nonzero timeout.  Your loop then takes no
+ *	CPU while there is nothing happening.
+ *
+ *	If you are calling it in a single-threaded app, you don't want it to
+ *	wait around blocking other things in your loop from happening, so you
+ *	would call it with a timeout_ms of 0, so it returns immediately if
+ *	nothing is pending, or as soon as it services whatever was pending.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_service(struct lws_context *context, int timeout_ms);
+
+/**
+ * lws_service_tsi() - Service any pending websocket activity
+ *
+ * \param context:	Websocket context
+ * \param timeout_ms:	Timeout for poll; 0 means return immediately if nothing needed
+ *		service otherwise block and service immediately, returning
+ *		after the timeout if nothing needed service.
+ * \param tsi:		Thread service index, starting at 0
+ *
+ * Same as lws_service(), but for a specific thread service index.  Only needed
+ * if you are spawning multiple service threads.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_service_tsi(struct lws_context *context, int timeout_ms, int tsi);
+
+/**
+ * lws_cancel_service_pt() - Cancel servicing of pending socket activity
+ *				on one thread
+ * \param wsi:	Cancel service on the thread this wsi is serviced by
+ *
+ * Same as lws_cancel_service(), but targets a single service thread, the one
+ * the wsi belongs to.  You probably want to use lws_cancel_service() instead.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_cancel_service_pt(struct lws *wsi);
+
+/**
+ * lws_cancel_service() - Cancel wait for new pending socket activity
+ * \param context:	Websocket context
+ *
+ * This function creates an immediate "synchronous interrupt" to the lws poll()
+ * wait or event loop.  As soon as possible in the serialzed service sequencing,
+ * a LWS_CALLBACK_EVENT_WAIT_CANCELLED callback is sent to every protocol on
+ * every vhost.
+ *
+ * lws_cancel_service() may be called from another thread while the context
+ * exists, and its effect will be immediately serialized.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_cancel_service(struct lws_context *context);
+
+/**
+ * lws_service_fd() - Service polled socket with something waiting
+ * \param context:	Websocket context
+ * \param pollfd:	The pollfd entry describing the socket fd and which events
+ *		happened, or NULL to tell lws to do only timeout servicing.
+ *
+ * This function takes a pollfd that has POLLIN or POLLOUT activity and
+ * services it according to the state of the associated
+ * struct lws.
+ *
+ * The one call deals with all "service" that might happen on a socket
+ * including listen accepts, http files as well as websocket protocol.
+ *
+ * If a pollfd says it has something, you can just pass it to
+ * lws_service_fd() whether it is a socket handled by lws or not.
+ * If it sees it is a lws socket, the traffic will be handled and
+ * pollfd->revents will be zeroed now.
+ *
+ * If the socket is foreign to lws, it leaves revents alone.  So you can
+ * see if you should service yourself by checking the pollfd revents
+ * after letting lws try to service it.
+ *
+ * You should also call this with pollfd = NULL to just allow the
+ * once-per-second global timeout checks; if less than a second since the last
+ * check it returns immediately then.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_service_fd(struct lws_context *context, struct lws_pollfd *pollfd);
+
+/**
+ * lws_service_fd_tsi() - Service polled socket in specific service thread
+ * \param context:	Websocket context
+ * \param pollfd:	The pollfd entry describing the socket fd and which events
+ *		happened.
+ * \param tsi: thread service index
+ *
+ * Same as lws_service_fd() but used with multiple service threads
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_service_fd_tsi(struct lws_context *context, struct lws_pollfd *pollfd,
+		   int tsi);
+
+/**
+ * lws_service_adjust_timeout() - Check for any connection needing forced service
+ * \param context:	Websocket context
+ * \param timeout_ms:	The original poll timeout value.  You can just set this
+ *			to 1 if you don't really have a poll timeout.
+ * \param tsi: thread service index
+ *
+ * Under some conditions connections may need service even though there is no
+ * pending network action on them, this is "forced service".  For default
+ * poll() and libuv / libev, the library takes care of calling this and
+ * dealing with it for you.  But for external poll() integration, you need
+ * access to the apis.
+ *
+ * If anybody needs "forced service", returned timeout is zero.  In that case,
+ * you can call lws_service_tsi() with a timeout of -1 to only service
+ * guys who need forced service.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_service_adjust_timeout(struct lws_context *context, int timeout_ms, int tsi);
+
+/* Backwards compatibility */
+#define lws_plat_service_tsi lws_service_tsi
+
+LWS_VISIBLE LWS_EXTERN int
+lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd);
+
+///@}
+
+/*! \defgroup http HTTP
+
+    Modules related to handling HTTP
+*/
+//@{
+
+/*! \defgroup httpft HTTP File transfer
+ * \ingroup http
+
+    APIs for sending local files in response to HTTP requests
+*/
+//@{
+
+/**
+ * lws_get_mimetype() - Determine mimetype to use from filename
+ *
+ * \param file:		filename
+ * \param m:		NULL, or mount context
+ *
+ * This uses a canned list of known filetypes first, if no match and m is
+ * non-NULL, then tries a list of per-mount file suffix to mimtype mappings.
+ *
+ * Returns either NULL or a pointer to the mimetype matching the file.
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_get_mimetype(const char *file, const struct lws_http_mount *m);
+
+/**
+ * lws_serve_http_file() - Send a file back to the client using http
+ * \param wsi:		Websocket instance (available from user callback)
+ * \param file:		The file to issue over http
+ * \param content_type:	The http content type, eg, text/html
+ * \param other_headers:	NULL or pointer to header string
+ * \param other_headers_len:	length of the other headers if non-NULL
+ *
+ *	This function is intended to be called from the callback in response
+ *	to http requests from the client.  It allows the callback to issue
+ *	local files down the http link in a single step.
+ *
+ *	Returning <0 indicates error and the wsi should be closed.  Returning
+ *	>0 indicates the file was completely sent and
+ *	lws_http_transaction_completed() called on the wsi (and close if != 0)
+ *	==0 indicates the file transfer is started and needs more service later,
+ *	the wsi should be left alone.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
+		    const char *other_headers, int other_headers_len);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_serve_http_file_fragment(struct lws *wsi);
+//@}
+
+
+enum http_status {
+	HTTP_STATUS_CONTINUE					= 100,
+
+	HTTP_STATUS_OK						= 200,
+	HTTP_STATUS_NO_CONTENT					= 204,
+	HTTP_STATUS_PARTIAL_CONTENT				= 206,
+
+	HTTP_STATUS_MOVED_PERMANENTLY				= 301,
+	HTTP_STATUS_FOUND					= 302,
+	HTTP_STATUS_SEE_OTHER					= 303,
+	HTTP_STATUS_NOT_MODIFIED				= 304,
+
+	HTTP_STATUS_BAD_REQUEST					= 400,
+	HTTP_STATUS_UNAUTHORIZED,
+	HTTP_STATUS_PAYMENT_REQUIRED,
+	HTTP_STATUS_FORBIDDEN,
+	HTTP_STATUS_NOT_FOUND,
+	HTTP_STATUS_METHOD_NOT_ALLOWED,
+	HTTP_STATUS_NOT_ACCEPTABLE,
+	HTTP_STATUS_PROXY_AUTH_REQUIRED,
+	HTTP_STATUS_REQUEST_TIMEOUT,
+	HTTP_STATUS_CONFLICT,
+	HTTP_STATUS_GONE,
+	HTTP_STATUS_LENGTH_REQUIRED,
+	HTTP_STATUS_PRECONDITION_FAILED,
+	HTTP_STATUS_REQ_ENTITY_TOO_LARGE,
+	HTTP_STATUS_REQ_URI_TOO_LONG,
+	HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE,
+	HTTP_STATUS_REQ_RANGE_NOT_SATISFIABLE,
+	HTTP_STATUS_EXPECTATION_FAILED,
+
+	HTTP_STATUS_INTERNAL_SERVER_ERROR			= 500,
+	HTTP_STATUS_NOT_IMPLEMENTED,
+	HTTP_STATUS_BAD_GATEWAY,
+	HTTP_STATUS_SERVICE_UNAVAILABLE,
+	HTTP_STATUS_GATEWAY_TIMEOUT,
+	HTTP_STATUS_HTTP_VERSION_NOT_SUPPORTED,
+};
+/*! \defgroup html-chunked-substitution HTML Chunked Substitution
+ * \ingroup http
+ *
+ * ##HTML chunked Substitution
+ *
+ * APIs for receiving chunks of text, replacing a set of variable names via
+ * a callback, and then prepending and appending HTML chunked encoding
+ * headers.
+ */
+//@{
+
+struct lws_process_html_args {
+	char *p; /**< pointer to the buffer containing the data */
+	int len; /**< length of the original data at p */
+	int max_len; /**< maximum length we can grow the data to */
+	int final; /**< set if this is the last chunk of the file */
+	int chunked; /**< 0 == unchunked, 1 == produce chunk headers (incompatible with HTTP/2) */
+};
+
+typedef const char *(*lws_process_html_state_cb)(void *data, int index);
+
+struct lws_process_html_state {
+	char *start; /**< pointer to start of match */
+	char swallow[16]; /**< matched character buffer */
+	int pos; /**< position in match */
+	void *data; /**< opaque pointer */
+	const char * const *vars; /**< list of variable names */
+	int count_vars; /**< count of variable names */
+
+	lws_process_html_state_cb replace; /**< called on match to perform substitution */
+};
+
+/*! lws_chunked_html_process() - generic chunked substitution
+ * \param args: buffer to process using chunked encoding
+ * \param s: current processing state
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_chunked_html_process(struct lws_process_html_args *args,
+			 struct lws_process_html_state *s);
+//@}
+
+/** \defgroup HTTP-headers-read HTTP headers: read
+ * \ingroup http
+ *
+ * ##HTTP header releated functions
+ *
+ *  In lws the client http headers are temporarily stored in a pool, only for the
+ *  duration of the http part of the handshake.  It's because in most cases,
+ *  the header content is ignored for the whole rest of the connection lifetime
+ *  and would then just be taking up space needlessly.
+ *
+ *  During LWS_CALLBACK_HTTP when the URI path is delivered is the last time
+ *  the http headers are still allocated, you can use these apis then to
+ *  look at and copy out interesting header content (cookies, etc)
+ *
+ *  Notice that the header total length reported does not include a terminating
+ *  '\0', however you must allocate for it when using the _copy apis.  So the
+ *  length reported for a header containing "123" is 3, but you must provide
+ *  a buffer of length 4 so that "123\0" may be copied into it, or the copy
+ *  will fail with a nonzero return code.
+ *
+ *  In the special case of URL arguments, like ?x=1&y=2, the arguments are
+ *  stored in a token named for the method, eg,  WSI_TOKEN_GET_URI if it
+ *  was a GET or WSI_TOKEN_POST_URI if POST.  You can check the total
+ *  length to confirm the method.
+ *
+ *  For URL arguments, each argument is stored urldecoded in a "fragment", so
+ *  you can use the fragment-aware api lws_hdr_copy_fragment() to access each
+ *  argument in turn: the fragments contain urldecoded strings like x=1 or y=2.
+ *
+ *  As a convenience, lws has an api that will find the fragment with a
+ *  given name= part, lws_get_urlarg_by_name().
+ */
+///@{
+
+/** struct lws_tokens
+ * you need these to look at headers that have been parsed if using the
+ * LWS_CALLBACK_FILTER_CONNECTION callback.  If a header from the enum
+ * list below is absent, .token = NULL and len = 0.  Otherwise .token
+ * points to .len chars containing that header content.
+ */
+struct lws_tokens {
+	char *token; /**< pointer to start of the token */
+	int len; /**< length of the token's value */
+};
+
+/* enum lws_token_indexes
+ * these have to be kept in sync with lextable.h / minilex.c
+ *
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+enum lws_token_indexes {
+	WSI_TOKEN_GET_URI					=  0,
+	WSI_TOKEN_POST_URI					=  1,
+	WSI_TOKEN_OPTIONS_URI					=  2,
+	WSI_TOKEN_HOST						=  3,
+	WSI_TOKEN_CONNECTION					=  4,
+	WSI_TOKEN_UPGRADE					=  5,
+	WSI_TOKEN_ORIGIN					=  6,
+	WSI_TOKEN_DRAFT						=  7,
+	WSI_TOKEN_CHALLENGE					=  8,
+	WSI_TOKEN_EXTENSIONS					=  9,
+	WSI_TOKEN_KEY1						= 10,
+	WSI_TOKEN_KEY2						= 11,
+	WSI_TOKEN_PROTOCOL					= 12,
+	WSI_TOKEN_ACCEPT					= 13,
+	WSI_TOKEN_NONCE						= 14,
+	WSI_TOKEN_HTTP						= 15,
+	WSI_TOKEN_HTTP2_SETTINGS				= 16,
+	WSI_TOKEN_HTTP_ACCEPT					= 17,
+	WSI_TOKEN_HTTP_AC_REQUEST_HEADERS			= 18,
+	WSI_TOKEN_HTTP_IF_MODIFIED_SINCE			= 19,
+	WSI_TOKEN_HTTP_IF_NONE_MATCH				= 20,
+	WSI_TOKEN_HTTP_ACCEPT_ENCODING				= 21,
+	WSI_TOKEN_HTTP_ACCEPT_LANGUAGE				= 22,
+	WSI_TOKEN_HTTP_PRAGMA					= 23,
+	WSI_TOKEN_HTTP_CACHE_CONTROL				= 24,
+	WSI_TOKEN_HTTP_AUTHORIZATION				= 25,
+	WSI_TOKEN_HTTP_COOKIE					= 26,
+	WSI_TOKEN_HTTP_CONTENT_LENGTH				= 27,
+	WSI_TOKEN_HTTP_CONTENT_TYPE				= 28,
+	WSI_TOKEN_HTTP_DATE					= 29,
+	WSI_TOKEN_HTTP_RANGE					= 30,
+	WSI_TOKEN_HTTP_REFERER					= 31,
+	WSI_TOKEN_KEY						= 32,
+	WSI_TOKEN_VERSION					= 33,
+	WSI_TOKEN_SWORIGIN					= 34,
+
+	WSI_TOKEN_HTTP_COLON_AUTHORITY				= 35,
+	WSI_TOKEN_HTTP_COLON_METHOD				= 36,
+	WSI_TOKEN_HTTP_COLON_PATH				= 37,
+	WSI_TOKEN_HTTP_COLON_SCHEME				= 38,
+	WSI_TOKEN_HTTP_COLON_STATUS				= 39,
+
+	WSI_TOKEN_HTTP_ACCEPT_CHARSET				= 40,
+	WSI_TOKEN_HTTP_ACCEPT_RANGES				= 41,
+	WSI_TOKEN_HTTP_ACCESS_CONTROL_ALLOW_ORIGIN		= 42,
+	WSI_TOKEN_HTTP_AGE					= 43,
+	WSI_TOKEN_HTTP_ALLOW					= 44,
+	WSI_TOKEN_HTTP_CONTENT_DISPOSITION			= 45,
+	WSI_TOKEN_HTTP_CONTENT_ENCODING				= 46,
+	WSI_TOKEN_HTTP_CONTENT_LANGUAGE				= 47,
+	WSI_TOKEN_HTTP_CONTENT_LOCATION				= 48,
+	WSI_TOKEN_HTTP_CONTENT_RANGE				= 49,
+	WSI_TOKEN_HTTP_ETAG					= 50,
+	WSI_TOKEN_HTTP_EXPECT					= 51,
+	WSI_TOKEN_HTTP_EXPIRES					= 52,
+	WSI_TOKEN_HTTP_FROM					= 53,
+	WSI_TOKEN_HTTP_IF_MATCH					= 54,
+	WSI_TOKEN_HTTP_IF_RANGE					= 55,
+	WSI_TOKEN_HTTP_IF_UNMODIFIED_SINCE			= 56,
+	WSI_TOKEN_HTTP_LAST_MODIFIED				= 57,
+	WSI_TOKEN_HTTP_LINK					= 58,
+	WSI_TOKEN_HTTP_LOCATION					= 59,
+	WSI_TOKEN_HTTP_MAX_FORWARDS				= 60,
+	WSI_TOKEN_HTTP_PROXY_AUTHENTICATE			= 61,
+	WSI_TOKEN_HTTP_PROXY_AUTHORIZATION			= 62,
+	WSI_TOKEN_HTTP_REFRESH					= 63,
+	WSI_TOKEN_HTTP_RETRY_AFTER				= 64,
+	WSI_TOKEN_HTTP_SERVER					= 65,
+	WSI_TOKEN_HTTP_SET_COOKIE				= 66,
+	WSI_TOKEN_HTTP_STRICT_TRANSPORT_SECURITY		= 67,
+	WSI_TOKEN_HTTP_TRANSFER_ENCODING			= 68,
+	WSI_TOKEN_HTTP_USER_AGENT				= 69,
+	WSI_TOKEN_HTTP_VARY					= 70,
+	WSI_TOKEN_HTTP_VIA					= 71,
+	WSI_TOKEN_HTTP_WWW_AUTHENTICATE				= 72,
+
+	WSI_TOKEN_PATCH_URI					= 73,
+	WSI_TOKEN_PUT_URI					= 74,
+	WSI_TOKEN_DELETE_URI					= 75,
+
+	WSI_TOKEN_HTTP_URI_ARGS					= 76,
+	WSI_TOKEN_PROXY						= 77,
+	WSI_TOKEN_HTTP_X_REAL_IP				= 78,
+	WSI_TOKEN_HTTP1_0					= 79,
+	WSI_TOKEN_X_FORWARDED_FOR				= 80,
+	WSI_TOKEN_CONNECT					= 81,
+	WSI_TOKEN_HEAD_URI					= 82,
+	WSI_TOKEN_TE						= 83,
+	WSI_TOKEN_REPLAY_NONCE					= 84,
+	WSI_TOKEN_COLON_PROTOCOL				= 85,
+	WSI_TOKEN_X_AUTH_TOKEN					= 86,
+
+	/****** add new things just above ---^ ******/
+
+	/* use token storage to stash these internally, not for
+	 * user use */
+
+	_WSI_TOKEN_CLIENT_SENT_PROTOCOLS,
+	_WSI_TOKEN_CLIENT_PEER_ADDRESS,
+	_WSI_TOKEN_CLIENT_URI,
+	_WSI_TOKEN_CLIENT_HOST,
+	_WSI_TOKEN_CLIENT_ORIGIN,
+	_WSI_TOKEN_CLIENT_METHOD,
+	_WSI_TOKEN_CLIENT_IFACE,
+	_WSI_TOKEN_CLIENT_ALPN,
+
+	/* always last real token index*/
+	WSI_TOKEN_COUNT,
+
+	/* parser state additions, no storage associated */
+	WSI_TOKEN_NAME_PART,
+	WSI_TOKEN_SKIPPING,
+	WSI_TOKEN_SKIPPING_SAW_CR,
+	WSI_PARSING_COMPLETE,
+	WSI_INIT_TOKEN_MUXURL,
+};
+
+struct lws_token_limits {
+	unsigned short token_limit[WSI_TOKEN_COUNT]; /**< max chars for this token */
+};
+
+/**
+ * lws_token_to_string() - returns a textual representation of a hdr token index
+ *
+ * \param token: token index
+ */
+LWS_VISIBLE LWS_EXTERN const unsigned char *
+lws_token_to_string(enum lws_token_indexes token);
+
+/**
+ * lws_hdr_total_length: report length of all fragments of a header totalled up
+ *		The returned length does not include the space for a
+ *		terminating '\0'
+ *
+ * \param wsi: websocket connection
+ * \param h: which header index we are interested in
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_hdr_total_length(struct lws *wsi, enum lws_token_indexes h);
+
+/**
+ * lws_hdr_fragment_length: report length of a single fragment of a header
+ *		The returned length does not include the space for a
+ *		terminating '\0'
+ *
+ * \param wsi: websocket connection
+ * \param h: which header index we are interested in
+ * \param frag_idx: which fragment of h we want to get the length of
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_hdr_fragment_length(struct lws *wsi, enum lws_token_indexes h, int frag_idx);
+
+/**
+ * lws_hdr_copy() - copy a single fragment of the given header to a buffer
+ *		The buffer length len must include space for an additional
+ *		terminating '\0', or it will fail returning -1.
+ *
+ * \param wsi: websocket connection
+ * \param dest: destination buffer
+ * \param len: length of destination buffer
+ * \param h: which header index we are interested in
+ *
+ * copies the whole, aggregated header, even if it was delivered in
+ * several actual headers piece by piece
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_hdr_copy(struct lws *wsi, char *dest, int len, enum lws_token_indexes h);
+
+/**
+ * lws_hdr_copy_fragment() - copy a single fragment of the given header to a buffer
+ *		The buffer length len must include space for an additional
+ *		terminating '\0', or it will fail returning -1.
+ *		If the requested fragment index is not present, it fails
+ *		returning -1.
+ *
+ * \param wsi: websocket connection
+ * \param dest: destination buffer
+ * \param len: length of destination buffer
+ * \param h: which header index we are interested in
+ * \param frag_idx: which fragment of h we want to copy
+ *
+ * Normally this is only useful
+ * to parse URI arguments like ?x=1&y=2, token index WSI_TOKEN_HTTP_URI_ARGS
+ * fragment 0 will contain "x=1" and fragment 1 "y=2"
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_hdr_copy_fragment(struct lws *wsi, char *dest, int len,
+		      enum lws_token_indexes h, int frag_idx);
+
+/**
+ * lws_get_urlarg_by_name() - return pointer to arg value if present
+ * \param wsi: the connection to check
+ * \param name: the arg name, like "token="
+ * \param buf: the buffer to receive the urlarg (including the name= part)
+ * \param len: the length of the buffer to receive the urlarg
+ *
+ *     Returns NULL if not found or a pointer inside buf to just after the
+ *     name= part.
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_get_urlarg_by_name(struct lws *wsi, const char *name, char *buf, int len);
+///@}
+
+/*! \defgroup HTTP-headers-create HTTP headers: create
+ *
+ * ## HTTP headers: Create
+ *
+ * These apis allow you to create HTTP response headers in a way compatible with
+ * both HTTP/1.x and HTTP/2.
+ *
+ * They each append to a buffer taking care about the buffer end, which is
+ * passed in as a pointer.  When data is written to the buffer, the current
+ * position p is updated accordingly.
+ *
+ * All of these apis are LWS_WARN_UNUSED_RESULT as they can run out of space
+ * and fail with nonzero return.
+ */
+///@{
+
+#define LWSAHH_CODE_MASK			((1 << 16) - 1)
+#define LWSAHH_FLAG_NO_SERVER_NAME		(1 << 30)
+
+/**
+ * lws_add_http_header_status() - add the HTTP response status code
+ *
+ * \param wsi: the connection to check
+ * \param code: an HTTP code like 200, 404 etc (see enum http_status)
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Adds the initial response code, so should be called first.
+ *
+ * Code may additionally take OR'd flags:
+ *
+ *    LWSAHH_FLAG_NO_SERVER_NAME:  don't apply server name header this time
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_add_http_header_status(struct lws *wsi,
+			   unsigned int code, unsigned char **p,
+			   unsigned char *end);
+/**
+ * lws_add_http_header_by_name() - append named header and value
+ *
+ * \param wsi: the connection to check
+ * \param name: the hdr name, like "my-header"
+ * \param value: the value after the = for this header
+ * \param length: the length of the value
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Appends name: value to the headers
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_add_http_header_by_name(struct lws *wsi, const unsigned char *name,
+			    const unsigned char *value, int length,
+			    unsigned char **p, unsigned char *end);
+/**
+ * lws_add_http_header_by_token() - append given header and value
+ *
+ * \param wsi: the connection to check
+ * \param token: the token index for the hdr
+ * \param value: the value after the = for this header
+ * \param length: the length of the value
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Appends name=value to the headers, but is able to take advantage of better
+ * HTTP/2 coding mechanisms where possible.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_add_http_header_by_token(struct lws *wsi, enum lws_token_indexes token,
+			     const unsigned char *value, int length,
+			     unsigned char **p, unsigned char *end);
+/**
+ * lws_add_http_header_content_length() - append content-length helper
+ *
+ * \param wsi: the connection to check
+ * \param content_length: the content length to use
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Appends content-length: content_length to the headers
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_add_http_header_content_length(struct lws *wsi,
+				   lws_filepos_t content_length,
+				   unsigned char **p, unsigned char *end);
+/**
+ * lws_finalize_http_header() - terminate header block
+ *
+ * \param wsi: the connection to check
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Indicates no more headers will be added
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_finalize_http_header(struct lws *wsi, unsigned char **p,
+			 unsigned char *end);
+
+/**
+ * lws_finalize_write_http_header() - Helper finializing and writing http headers
+ *
+ * \param wsi: the connection to check
+ * \param start: pointer to the start of headers in the buffer, eg &buf[LWS_PRE]
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Terminates the headers correctly accoring to the protocol in use (h1 / h2)
+ * and writes the headers.  Returns nonzero for error.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_finalize_write_http_header(struct lws *wsi, unsigned char *start,
+			       unsigned char **p, unsigned char *end);
+
+#define LWS_ILLEGAL_HTTP_CONTENT_LEN ((lws_filepos_t)-1ll)
+
+/**
+ * lws_add_http_common_headers() - Helper preparing common http headers
+ *
+ * \param wsi: the connection to check
+ * \param code: an HTTP code like 200, 404 etc (see enum http_status)
+ * \param content_type: the content type, like "text/html"
+ * \param content_len: the content length, in bytes
+ * \param p: pointer to current position in buffer pointer
+ * \param end: pointer to end of buffer
+ *
+ * Adds the initial response code, so should be called first.
+ *
+ * Code may additionally take OR'd flags:
+ *
+ *    LWSAHH_FLAG_NO_SERVER_NAME:  don't apply server name header this time
+ *
+ * This helper just calls public apis to simplify adding headers that are
+ * commonly needed.  If it doesn't fit your case, or you want to add additional
+ * headers just call the public apis directly yourself for what you want.
+ *
+ * You can miss out the content length header by providing the constant
+ * LWS_ILLEGAL_HTTP_CONTENT_LEN for the content_len.
+ *
+ * It does not call lws_finalize_http_header(), to allow you to add further
+ * headers after calling this.  You will need to call that yourself at the end.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_add_http_common_headers(struct lws *wsi, unsigned int code,
+			    const char *content_type, lws_filepos_t content_len,
+			    unsigned char **p, unsigned char *end);
+///@}
+
+/** \defgroup form-parsing  Form Parsing
+ * \ingroup http
+ * ##POSTed form parsing functions
+ *
+ * These lws_spa (stateful post arguments) apis let you parse and urldecode
+ * POSTed form arguments, both using simple urlencoded and multipart transfer
+ * encoding.
+ *
+ * It's capable of handling file uploads as well a named input parsing,
+ * and the apis are the same for both form upload styles.
+ *
+ * You feed it a list of parameter names and it creates pointers to the
+ * urldecoded arguments: file upload parameters pass the file data in chunks to
+ * a user-supplied callback as they come.
+ *
+ * Since it's stateful, it handles the incoming data needing more than one
+ * POST_BODY callback and has no limit on uploaded file size.
+ */
+///@{
+
+/** enum lws_spa_fileupload_states */
+enum lws_spa_fileupload_states {
+	LWS_UFS_CONTENT,
+	/**< a chunk of file content has arrived */
+	LWS_UFS_FINAL_CONTENT,
+	/**< the last chunk (possibly zero length) of file content has arrived */
+	LWS_UFS_OPEN
+	/**< a new file is starting to arrive */
+};
+
+/**
+ * lws_spa_fileupload_cb() - callback to receive file upload data
+ *
+ * \param data: opt_data pointer set in lws_spa_create
+ * \param name: name of the form field being uploaded
+ * \param filename: original filename from client
+ * \param buf: start of data to receive
+ * \param len: length of data to receive
+ * \param state: information about how this call relates to file
+ *
+ * Notice name and filename shouldn't be trusted, as they are passed from
+ * HTTP provided by the client.
+ */
+typedef int (*lws_spa_fileupload_cb)(void *data, const char *name,
+			const char *filename, char *buf, int len,
+			enum lws_spa_fileupload_states state);
+
+/** struct lws_spa - opaque urldecode parser capable of handling multipart
+ *			and file uploads */
+struct lws_spa;
+
+/**
+ * lws_spa_create() - create urldecode parser
+ *
+ * \param wsi: lws connection (used to find Content Type)
+ * \param param_names: array of form parameter names, like "username"
+ * \param count_params: count of param_names
+ * \param max_storage: total amount of form parameter values we can store
+ * \param opt_cb: NULL, or callback to receive file upload data.
+ * \param opt_data: NULL, or user pointer provided to opt_cb.
+ *
+ * Creates a urldecode parser and initializes it.
+ *
+ * opt_cb can be NULL if you just want normal name=value parsing, however
+ * if one or more entries in your form are bulk data (file transfer), you
+ * can provide this callback and filter on the name callback parameter to
+ * treat that urldecoded data separately.  The callback should return -1
+ * in case of fatal error, and 0 if OK.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_spa *
+lws_spa_create(struct lws *wsi, const char * const *param_names,
+	       int count_params, int max_storage, lws_spa_fileupload_cb opt_cb,
+	       void *opt_data);
+
+/**
+ * lws_spa_process() - parses a chunk of input data
+ *
+ * \param spa: the parser object previously created
+ * \param in: incoming, urlencoded data
+ * \param len: count of bytes valid at \param in
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_spa_process(struct lws_spa *spa, const char *in, int len);
+
+/**
+ * lws_spa_finalize() - indicate incoming data completed
+ *
+ * \param spa: the parser object previously created
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_spa_finalize(struct lws_spa *spa);
+
+/**
+ * lws_spa_get_length() - return length of parameter value
+ *
+ * \param spa: the parser object previously created
+ * \param n: parameter ordinal to return length of value for
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_spa_get_length(struct lws_spa *spa, int n);
+
+/**
+ * lws_spa_get_string() - return pointer to parameter value
+ * \param spa: the parser object previously created
+ * \param n: parameter ordinal to return pointer to value for
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_spa_get_string(struct lws_spa *spa, int n);
+
+/**
+ * lws_spa_destroy() - destroy parser object
+ *
+ * \param spa: the parser object previously created
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_spa_destroy(struct lws_spa *spa);
+///@}
+
+/*! \defgroup urlendec Urlencode and Urldecode
+ * \ingroup http
+ *
+ * ##HTML chunked Substitution
+ *
+ * APIs for receiving chunks of text, replacing a set of variable names via
+ * a callback, and then prepending and appending HTML chunked encoding
+ * headers.
+ */
+//@{
+
+/**
+ * lws_urlencode() - like strncpy but with urlencoding
+ *
+ * \param escaped: output buffer
+ * \param string: input buffer ('/0' terminated)
+ * \param len: output buffer max length
+ *
+ * Because urlencoding expands the output string, it's not
+ * possible to do it in-place, ie, with escaped == string
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_urlencode(char *escaped, const char *string, int len);
+
+/*
+ * URLDECODE 1 / 2
+ *
+ * This simple urldecode only operates until the first '\0' and requires the
+ * data to exist all at once
+ */
+/**
+ * lws_urldecode() - like strncpy but with urldecoding
+ *
+ * \param string: output buffer
+ * \param escaped: input buffer ('\0' terminated)
+ * \param len: output buffer max length
+ *
+ * This is only useful for '\0' terminated strings
+ *
+ * Since urldecoding only shrinks the output string, it is possible to
+ * do it in-place, ie, string == escaped
+ *
+ * Returns 0 if completed OK or nonzero for urldecode violation (non-hex chars
+ * where hex required, etc)
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_urldecode(char *string, const char *escaped, int len);
+///@}
+/**
+ * lws_return_http_status() - Return simple http status
+ * \param wsi:		Websocket instance (available from user callback)
+ * \param code:		Status index, eg, 404
+ * \param html_body:		User-readable HTML description < 1KB, or NULL
+ *
+ *	Helper to report HTTP errors back to the client cleanly and
+ *	consistently
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_return_http_status(struct lws *wsi, unsigned int code,
+		       const char *html_body);
+
+/**
+ * lws_http_redirect() - write http redirect out on wsi
+ *
+ * \param wsi:	websocket connection
+ * \param code:	HTTP response code (eg, 301)
+ * \param loc:	where to redirect to
+ * \param len:	length of loc
+ * \param p:	pointer current position in buffer (updated as we write)
+ * \param end:	pointer to end of buffer
+ *
+ * Returns amount written, or < 0 indicating fatal write failure.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_http_redirect(struct lws *wsi, int code, const unsigned char *loc, int len,
+		  unsigned char **p, unsigned char *end);
+
+/**
+ * lws_http_transaction_completed() - wait for new http transaction or close
+ * \param wsi:	websocket connection
+ *
+ *	Returns 1 if the HTTP connection must close now
+ *	Returns 0 and resets connection to wait for new HTTP header /
+ *	  transaction if possible
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_http_transaction_completed(struct lws *wsi);
+///@}
+
+/*! \defgroup pur Sanitize / purify SQL and JSON helpers
+ *
+ * ##Sanitize / purify SQL and JSON helpers
+ *
+ * APIs for escaping untrusted JSON and SQL safely before use
+ */
+//@{
+
+/**
+ * lws_sql_purify() - like strncpy but with escaping for sql quotes
+ *
+ * \param escaped: output buffer
+ * \param string: input buffer ('/0' terminated)
+ * \param len: output buffer max length
+ *
+ * Because escaping expands the output string, it's not
+ * possible to do it in-place, ie, with escaped == string
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_sql_purify(char *escaped, const char *string, int len);
+
+/**
+ * lws_json_purify() - like strncpy but with escaping for json chars
+ *
+ * \param escaped: output buffer
+ * \param string: input buffer ('/0' terminated)
+ * \param len: output buffer max length
+ *
+ * Because escaping expands the output string, it's not
+ * possible to do it in-place, ie, with escaped == string
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_json_purify(char *escaped, const char *string, int len);
+
+/**
+ * lws_filename_purify_inplace() - replace scary filename chars with underscore
+ *
+ * \param filename: filename to be purified
+ *
+ * Replace scary characters in the filename (it should not be a path)
+ * with underscore, so it's safe to use.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_filename_purify_inplace(char *filename);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
+			int len);
+LWS_VISIBLE LWS_EXTERN int
+lws_plat_write_file(const char *filename, void *buf, int len);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_plat_read_file(const char *filename, void *buf, int len);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_plat_recommended_rsa_bits(void);
+///@}
+
+/*! \defgroup uv libuv helpers
+ *
+ * ##libuv helpers
+ *
+ * APIs specific to libuv event loop itegration
+ */
+///@{
+#ifdef LWS_WITH_LIBUV
+/*
+ * Any direct libuv allocations in lws protocol handlers must participate in the
+ * lws reference counting scheme.  Two apis are provided:
+ *
+ * - lws_libuv_static_refcount_add(handle, context) to mark the handle with
+ *  a pointer to the context and increment the global uv object counter
+ *
+ * - lws_libuv_static_refcount_del() which should be used as the close callback
+ *   for your own libuv objects declared in the protocol scope.
+ *
+ * Using the apis allows lws to detach itself from a libuv loop completely
+ * cleanly and at the moment all of its libuv objects have completed close.
+ */
+
+LWS_VISIBLE LWS_EXTERN uv_loop_t *
+lws_uv_getloop(struct lws_context *context, int tsi);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_libuv_static_refcount_add(uv_handle_t *, struct lws_context *context);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_libuv_static_refcount_del(uv_handle_t *);
+
+#endif /* LWS_WITH_LIBUV */
+
+#if defined(LWS_WITH_ESP32)
+#define lws_libuv_static_refcount_add(_a, _b)
+#define lws_libuv_static_refcount_del NULL
+#endif
+///@}
+
+
+/*! \defgroup timeout Connection timeouts
+
+    APIs related to setting connection timeouts
+*/
+//@{
+
+/*
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+enum pending_timeout {
+	NO_PENDING_TIMEOUT					=  0,
+	PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE			=  1,
+	PENDING_TIMEOUT_AWAITING_CONNECT_RESPONSE		=  2,
+	PENDING_TIMEOUT_ESTABLISH_WITH_SERVER			=  3,
+	PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE		=  4,
+	PENDING_TIMEOUT_AWAITING_PING				=  5,
+	PENDING_TIMEOUT_CLOSE_ACK				=  6,
+	PENDING_TIMEOUT_UNUSED1					=  7,
+	PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE			=  8,
+	PENDING_TIMEOUT_SSL_ACCEPT				=  9,
+	PENDING_TIMEOUT_HTTP_CONTENT				= 10,
+	PENDING_TIMEOUT_AWAITING_CLIENT_HS_SEND			= 11,
+	PENDING_FLUSH_STORED_SEND_BEFORE_CLOSE			= 12,
+	PENDING_TIMEOUT_SHUTDOWN_FLUSH				= 13,
+	PENDING_TIMEOUT_CGI					= 14,
+	PENDING_TIMEOUT_HTTP_KEEPALIVE_IDLE			= 15,
+	PENDING_TIMEOUT_WS_PONG_CHECK_SEND_PING			= 16,
+	PENDING_TIMEOUT_WS_PONG_CHECK_GET_PONG			= 17,
+	PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD			= 18,
+	PENDING_TIMEOUT_AWAITING_SOCKS_GREETING_REPLY	        = 19,
+	PENDING_TIMEOUT_AWAITING_SOCKS_CONNECT_REPLY		= 20,
+	PENDING_TIMEOUT_AWAITING_SOCKS_AUTH_REPLY		= 21,
+	PENDING_TIMEOUT_KILLED_BY_SSL_INFO			= 22,
+	PENDING_TIMEOUT_KILLED_BY_PARENT			= 23,
+	PENDING_TIMEOUT_CLOSE_SEND				= 24,
+	PENDING_TIMEOUT_HOLDING_AH				= 25,
+	PENDING_TIMEOUT_UDP_IDLE				= 26,
+	PENDING_TIMEOUT_CLIENT_CONN_IDLE			= 27,
+	PENDING_TIMEOUT_LAGGING					= 28,
+
+	/****** add new things just above ---^ ******/
+
+	PENDING_TIMEOUT_USER_REASON_BASE			= 1000
+};
+
+#define LWS_TO_KILL_ASYNC -1
+/**< If LWS_TO_KILL_ASYNC is given as the timeout sec in a lws_set_timeout()
+ * call, then the connection is marked to be killed at the next timeout
+ * check.  This is how you should force-close the wsi being serviced if
+ * you are doing it outside the callback (where you should close by nonzero
+ * return).
+ */
+#define LWS_TO_KILL_SYNC -2
+/**< If LWS_TO_KILL_SYNC is given as the timeout sec in a lws_set_timeout()
+ * call, then the connection is closed before returning (which may delete
+ * the wsi).  This should only be used where the wsi being closed is not the
+ * wsi currently being serviced.
+ */
+/**
+ * lws_set_timeout() - marks the wsi as subject to a timeout
+ *
+ * You will not need this unless you are doing something special
+ *
+ * \param wsi:	Websocket connection instance
+ * \param reason:	timeout reason
+ * \param secs:	how many seconds.  You may set to LWS_TO_KILL_ASYNC to
+ *		force the connection to timeout at the next opportunity, or
+ *		LWS_TO_KILL_SYNC to close it synchronously if you know the
+ *		wsi is not the one currently being serviced.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs);
+
+#define LWS_SET_TIMER_USEC_CANCEL ((lws_usec_t)-1ll)
+#define LWS_USEC_PER_SEC (1000000ll)
+
+/**
+ * lws_set_timer_usecs() - schedules a callback on the wsi in the future
+ *
+ * \param wsi:	Websocket connection instance
+ * \param usecs:  LWS_SET_TIMER_USEC_CANCEL removes any existing scheduled
+ *		  callback, otherwise number of microseconds in the future
+ *		  the callback will occur at.
+ *
+ * NOTE: event loop support for this:
+ *
+ *  default poll() loop:   yes
+ *  libuv event loop:      yes
+ *  libev:    not implemented (patch welcome)
+ *  libevent: not implemented (patch welcome)
+ *
+ * After the deadline expires, the wsi will get a callback of type
+ * LWS_CALLBACK_TIMER and the timer is exhausted.  The deadline may be
+ * continuously deferred by further calls to lws_set_timer_usecs() with a later
+ * deadline, or cancelled by lws_set_timer_usecs(wsi, -1).
+ *
+ * If the timer should repeat, lws_set_timer_usecs() must be called again from
+ * LWS_CALLBACK_TIMER.
+ *
+ * Accuracy depends on the platform and the load on the event loop or system...
+ * all that's guaranteed is the callback will come after the requested wait
+ * period.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_set_timer_usecs(struct lws *wsi, lws_usec_t usecs);
+
+/*
+ * lws_timed_callback_vh_protocol() - calls back a protocol on a vhost after
+ * 					the specified delay
+ *
+ * \param vh:	 the vhost to call back
+ * \param protocol: the protocol to call back
+ * \param reason: callback reason
+ * \param secs:	how many seconds in the future to do the callback.  Set to
+ *		-1 to cancel the timer callback.
+ *
+ * Callback the specified protocol with a fake wsi pointing to the specified
+ * vhost and protocol, with the specified reason, at the specified time in the
+ * future.
+ *
+ * Returns 0 if OK.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_timed_callback_vh_protocol(struct lws_vhost *vh,
+			       const struct lws_protocols *prot,
+			       int reason, int secs);
+///@}
+
+/*! \defgroup sending-data Sending data
+
+    APIs related to writing data on a connection
+*/
+//@{
+#if !defined(LWS_SIZEOFPTR)
+#define LWS_SIZEOFPTR ((int)sizeof (void *))
+#endif
+
+#if defined(__x86_64__)
+#define _LWS_PAD_SIZE 16	/* Intel recommended for best performance */
+#else
+#define _LWS_PAD_SIZE LWS_SIZEOFPTR   /* Size of a pointer on the target arch */
+#endif
+#define _LWS_PAD(n) (((n) % _LWS_PAD_SIZE) ? \
+		((n) + (_LWS_PAD_SIZE - ((n) % _LWS_PAD_SIZE))) : (n))
+/* last 2 is for lws-meta */
+#define LWS_PRE _LWS_PAD(4 + 10 + 2)
+/* used prior to 1.7 and retained for backward compatibility */
+#define LWS_SEND_BUFFER_PRE_PADDING LWS_PRE
+#define LWS_SEND_BUFFER_POST_PADDING 0
+
+#define LWS_WRITE_RAW LWS_WRITE_HTTP
+
+/*
+ * NOTE: These public enums are part of the abi.  If you want to add one,
+ * add it at where specified so existing users are unaffected.
+ */
+enum lws_write_protocol {
+	LWS_WRITE_TEXT						= 0,
+	/**< Send a ws TEXT message,the pointer must have LWS_PRE valid
+	 * memory behind it.  The receiver expects only valid utf-8 in the
+	 * payload */
+	LWS_WRITE_BINARY					= 1,
+	/**< Send a ws BINARY message, the pointer must have LWS_PRE valid
+	 * memory behind it.  Any sequence of bytes is valid */
+	LWS_WRITE_CONTINUATION					= 2,
+	/**< Continue a previous ws message, the pointer must have LWS_PRE valid
+	 * memory behind it */
+	LWS_WRITE_HTTP						= 3,
+	/**< Send HTTP content */
+
+	/* LWS_WRITE_CLOSE is handled by lws_close_reason() */
+	LWS_WRITE_PING						= 5,
+	LWS_WRITE_PONG						= 6,
+
+	/* Same as write_http but we know this write ends the transaction */
+	LWS_WRITE_HTTP_FINAL					= 7,
+
+	/* HTTP2 */
+
+	LWS_WRITE_HTTP_HEADERS					= 8,
+	/**< Send http headers (http2 encodes this payload and LWS_WRITE_HTTP
+	 * payload differently, http 1.x links also handle this correctly. so
+	 * to be compatible with both in the future,header response part should
+	 * be sent using this regardless of http version expected)
+	 */
+	LWS_WRITE_HTTP_HEADERS_CONTINUATION			= 9,
+	/**< Continuation of http/2 headers
+	 */
+
+	/****** add new things just above ---^ ******/
+
+	/* flags */
+
+	LWS_WRITE_NO_FIN = 0x40,
+	/**< This part of the message is not the end of the message */
+
+	LWS_WRITE_H2_STREAM_END = 0x80,
+	/**< Flag indicates this packet should go out with STREAM_END if h2
+	 * STREAM_END is allowed on DATA or HEADERS.
+	 */
+
+	LWS_WRITE_CLIENT_IGNORE_XOR_MASK = 0x80
+	/**< client packet payload goes out on wire unmunged
+	 * only useful for security tests since normal servers cannot
+	 * decode the content if used */
+};
+
+/* used with LWS_CALLBACK_CHILD_WRITE_VIA_PARENT */
+
+struct lws_write_passthru {
+	struct lws *wsi;
+	unsigned char *buf;
+	size_t len;
+	enum lws_write_protocol wp;
+};
+
+
+/**
+ * lws_write() - Apply protocol then write data to client
+ * \param wsi:	Websocket instance (available from user callback)
+ * \param buf:	The data to send.  For data being sent on a websocket
+ *		connection (ie, not default http), this buffer MUST have
+ *		LWS_PRE bytes valid BEFORE the pointer.
+ *		This is so the protocol header data can be added in-situ.
+ * \param len:	Count of the data bytes in the payload starting from buf
+ * \param protocol:	Use LWS_WRITE_HTTP to reply to an http connection, and one
+ *		of LWS_WRITE_BINARY or LWS_WRITE_TEXT to send appropriate
+ *		data on a websockets connection.  Remember to allow the extra
+ *		bytes before and after buf if LWS_WRITE_BINARY or LWS_WRITE_TEXT
+ *		are used.
+ *
+ *	This function provides the way to issue data back to the client
+ *	for both http and websocket protocols.
+ *
+ * IMPORTANT NOTICE!
+ *
+ * When sending with websocket protocol
+ *
+ * LWS_WRITE_TEXT,
+ * LWS_WRITE_BINARY,
+ * LWS_WRITE_CONTINUATION,
+ * LWS_WRITE_PING,
+ * LWS_WRITE_PONG
+ *
+ * the send buffer has to have LWS_PRE bytes valid BEFORE
+ * the buffer pointer you pass to lws_write().
+ *
+ * This allows us to add protocol info before and after the data, and send as
+ * one packet on the network without payload copying, for maximum efficiency.
+ *
+ * So for example you need this kind of code to use lws_write with a
+ * 128-byte payload
+ *
+ *   char buf[LWS_PRE + 128];
+ *
+ *   // fill your part of the buffer... for example here it's all zeros
+ *   memset(&buf[LWS_PRE], 0, 128);
+ *
+ *   lws_write(wsi, &buf[LWS_PRE], 128, LWS_WRITE_TEXT);
+ *
+ * When sending HTTP, with
+ *
+ * LWS_WRITE_HTTP,
+ * LWS_WRITE_HTTP_HEADERS
+ * LWS_WRITE_HTTP_FINAL
+ *
+ * there is no protocol data prepended, and don't need to take care about the
+ * LWS_PRE bytes valid before the buffer pointer.
+ *
+ * LWS_PRE is at least the frame nonce + 2 header + 8 length
+ * LWS_SEND_BUFFER_POST_PADDING is deprecated, it's now 0 and can be left off.
+ * The example apps no longer use it.
+ *
+ * Pad LWS_PRE to the CPU word size, so that word references
+ * to the address immediately after the padding won't cause an unaligned access
+ * error. Sometimes for performance reasons the recommended padding is even
+ * larger than sizeof(void *).
+ *
+ *	In the case of sending using websocket protocol, be sure to allocate
+ *	valid storage before and after buf as explained above.  This scheme
+ *	allows maximum efficiency of sending data and protocol in a single
+ *	packet while not burdening the user code with any protocol knowledge.
+ *
+ *	Return may be -1 for a fatal error needing connection close, or the
+ *	number of bytes sent.
+ *
+ * Truncated Writes
+ * ================
+ *
+ * The OS may not accept everything you asked to write on the connection.
+ *
+ * Posix defines POLLOUT indication from poll() to show that the connection
+ * will accept more write data, but it doesn't specifiy how much.  It may just
+ * accept one byte of whatever you wanted to send.
+ *
+ * LWS will buffer the remainder automatically, and send it out autonomously.
+ *
+ * During that time, WRITABLE callbacks will be suppressed.
+ *
+ * This is to handle corner cases where unexpectedly the OS refuses what we
+ * usually expect it to accept.  You should try to send in chunks that are
+ * almost always accepted in order to avoid the inefficiency of the buffering.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_write(struct lws *wsi, unsigned char *buf, size_t len,
+	  enum lws_write_protocol protocol);
+
+/* helper for case where buffer may be const */
+#define lws_write_http(wsi, buf, len) \
+	lws_write(wsi, (unsigned char *)(buf), len, LWS_WRITE_HTTP)
+
+/* helper for multi-frame ws message flags */
+static LWS_INLINE int
+lws_write_ws_flags(int initial, int is_start, int is_end)
+{
+	int r;
+
+	if (is_start)
+		r = initial;
+	else
+		r = LWS_WRITE_CONTINUATION;
+
+	if (!is_end)
+		r |= LWS_WRITE_NO_FIN;
+
+	return r;
+}
+///@}
+
+/** \defgroup callback-when-writeable Callback when writeable
+ *
+ * ##Callback When Writeable
+ *
+ * lws can only write data on a connection when it is able to accept more
+ * data without blocking.
+ *
+ * So a basic requirement is we should only use the lws_write() apis when the
+ * connection we want to write on says that he can accept more data.
+ *
+ * When lws cannot complete your send at the time, it will buffer the data
+ * and send it in the background, suppressing any further WRITEABLE callbacks
+ * on that connection until it completes.  So it is important to write new
+ * things in a new writeable callback.
+ *
+ * These apis reflect the various ways we can indicate we would like to be
+ * called back when one or more connections is writeable.
+ */
+///@{
+
+/**
+ * lws_callback_on_writable() - Request a callback when this socket
+ *					 becomes able to be written to without
+ *					 blocking
+ *
+ * \param wsi:	Websocket connection instance to get callback for
+ *
+ * - Which:  only this wsi
+ * - When:   when the individual connection becomes writeable
+ * - What: LWS_CALLBACK_*_WRITEABLE
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_on_writable(struct lws *wsi);
+
+/**
+ * lws_callback_on_writable_all_protocol() - Request a callback for all
+ *			connections using the given protocol when it
+ *			becomes possible to write to each socket without
+ *			blocking in turn.
+ *
+ * \param context:	lws_context
+ * \param protocol:	Protocol whose connections will get callbacks
+ *
+ * - Which:  connections using this protocol on ANY VHOST
+ * - When:   when the individual connection becomes writeable
+ * - What: LWS_CALLBACK_*_WRITEABLE
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_on_writable_all_protocol(const struct lws_context *context,
+				      const struct lws_protocols *protocol);
+
+/**
+ * lws_callback_on_writable_all_protocol_vhost() - Request a callback for
+ *			all connections on same vhost using the given protocol
+ *			when it becomes possible to write to each socket without
+ *			blocking in turn.
+ *
+ * \param vhost:	Only consider connections on this lws_vhost
+ * \param protocol:	Protocol whose connections will get callbacks
+ *
+ * - Which:  connections using this protocol on GIVEN VHOST ONLY
+ * - When:   when the individual connection becomes writeable
+ * - What: LWS_CALLBACK_*_WRITEABLE
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_on_writable_all_protocol_vhost(const struct lws_vhost *vhost,
+				      const struct lws_protocols *protocol);
+
+/**
+ * lws_callback_all_protocol() - Callback all connections using
+ *				the given protocol with the given reason
+ *
+ * \param context:	lws_context
+ * \param protocol:	Protocol whose connections will get callbacks
+ * \param reason:	Callback reason index
+ *
+ * - Which:  connections using this protocol on ALL VHOSTS
+ * - When:   before returning
+ * - What:   reason
+ *
+ * This isn't normally what you want... normally any update of connection-
+ * specific information can wait until a network-related callback like rx,
+ * writable, or close.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_all_protocol(struct lws_context *context,
+			  const struct lws_protocols *protocol, int reason);
+
+/**
+ * lws_callback_all_protocol_vhost() - Callback all connections using
+ *			the given protocol with the given reason.  This is
+ *			deprecated since v2.4: use lws_callback_all_protocol_vhost_args
+ *
+ * \param vh:		Vhost whose connections will get callbacks
+ * \param protocol:	Which protocol to match.  NULL means all.
+ * \param reason:	Callback reason index
+ *
+ * - Which:  connections using this protocol on GIVEN VHOST ONLY
+ * - When:   now
+ * - What:   reason
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_all_protocol_vhost(struct lws_vhost *vh,
+			  const struct lws_protocols *protocol, int reason)
+LWS_WARN_DEPRECATED;
+
+/**
+ * lws_callback_all_protocol_vhost_args() - Callback all connections using
+ *			the given protocol with the given reason and args
+ *
+ * \param vh:		Vhost whose connections will get callbacks
+ * \param protocol:	Which protocol to match.  NULL means all.
+ * \param reason:	Callback reason index
+ * \param argp:		Callback "in" parameter
+ * \param len:		Callback "len" parameter
+ *
+ * - Which:  connections using this protocol on GIVEN VHOST ONLY
+ * - When:   now
+ * - What:   reason
+ */
+LWS_VISIBLE int
+lws_callback_all_protocol_vhost_args(struct lws_vhost *vh,
+			  const struct lws_protocols *protocol, int reason,
+			  void *argp, size_t len);
+
+/**
+ * lws_callback_vhost_protocols() - Callback all protocols enabled on a vhost
+ *					with the given reason
+ *
+ * \param wsi:	wsi whose vhost will get callbacks
+ * \param reason:	Callback reason index
+ * \param in:		in argument to callback
+ * \param len:	len argument to callback
+ *
+ * - Which:  connections using this protocol on same VHOST as wsi ONLY
+ * - When:   now
+ * - What:   reason
+ *
+ * This is deprecated since v2.5, use lws_callback_vhost_protocols_vhost()
+ * which takes the pointer to the vhost directly without using or needing the
+ * wsi.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_vhost_protocols(struct lws *wsi, int reason, void *in, int len)
+LWS_WARN_DEPRECATED;
+
+/**
+ * lws_callback_vhost_protocols_vhost() - Callback all protocols enabled on a vhost
+ *					with the given reason
+ *
+ * \param vh:		vhost that will get callbacks
+ * \param reason:	Callback reason index
+ * \param in:		in argument to callback
+ * \param len:		len argument to callback
+ *
+ * - Which:  connections using this protocol on same VHOST as wsi ONLY
+ * - When:   now
+ * - What:   reason
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_vhost_protocols_vhost(struct lws_vhost *vh, int reason, void *in,
+				   size_t len);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
+		    void *user, void *in, size_t len);
+
+/**
+ * lws_get_socket_fd() - returns the socket file descriptor
+ *
+ * This is needed to use sendto() on UDP raw sockets
+ *
+ * \param wsi:	Websocket connection instance
+ */
+LWS_VISIBLE LWS_EXTERN lws_sockfd_type
+lws_get_socket_fd(struct lws *wsi);
+
+/**
+ * lws_get_peer_write_allowance() - get the amount of data writeable to peer
+ * 					if known
+ *
+ * \param wsi:	Websocket connection instance
+ *
+ * if the protocol does not have any guidance, returns -1.  Currently only
+ * http2 connections get send window information from this API.  But your code
+ * should use it so it can work properly with any protocol.
+ *
+ * If nonzero return is the amount of payload data the peer or intermediary has
+ * reported it has buffer space for.  That has NO relationship with the amount
+ * of buffer space your OS can accept on this connection for a write action.
+ *
+ * This number represents the maximum you could send to the peer or intermediary
+ * on this connection right now without the protocol complaining.
+ *
+ * lws manages accounting for send window updates and payload writes
+ * automatically, so this number reflects the situation at the peer or
+ * intermediary dynamically.
+ */
+LWS_VISIBLE LWS_EXTERN lws_fileofs_t
+lws_get_peer_write_allowance(struct lws *wsi);
+///@}
+
+enum {
+	/*
+	 * Flags for enable and disable rxflow with reason bitmap and with
+	 * backwards-compatible single bool
+	 */
+	LWS_RXFLOW_REASON_USER_BOOL		= (1 << 0),
+	LWS_RXFLOW_REASON_HTTP_RXBUFFER		= (1 << 6),
+	LWS_RXFLOW_REASON_H2_PPS_PENDING	= (1 << 7),
+
+	LWS_RXFLOW_REASON_APPLIES		= (1 << 14),
+	LWS_RXFLOW_REASON_APPLIES_ENABLE_BIT	= (1 << 13),
+	LWS_RXFLOW_REASON_APPLIES_ENABLE	= LWS_RXFLOW_REASON_APPLIES |
+						  LWS_RXFLOW_REASON_APPLIES_ENABLE_BIT,
+	LWS_RXFLOW_REASON_APPLIES_DISABLE	= LWS_RXFLOW_REASON_APPLIES,
+	LWS_RXFLOW_REASON_FLAG_PROCESS_NOW	= (1 << 12),
+
+};
+
+/**
+ * lws_rx_flow_control() - Enable and disable socket servicing for
+ *				received packets.
+ *
+ * If the output side of a server process becomes choked, this allows flow
+ * control for the input side.
+ *
+ * \param wsi:	Websocket connection instance to get callback for
+ * \param enable:	0 = disable read servicing for this connection, 1 = enable
+ *
+ * If you need more than one additive reason for rxflow control, you can give
+ * iLWS_RXFLOW_REASON_APPLIES_ENABLE or _DISABLE together with one or more of
+ * b5..b0 set to idicate which bits to enable or disable.  If any bits are
+ * enabled, rx on the connection is suppressed.
+ *
+ * LWS_RXFLOW_REASON_FLAG_PROCESS_NOW  flag may also be given to force any change
+ * in rxflowbstatus to benapplied immediately, this should be used when you are
+ * changing a wsi flow control state from outside a callback on that wsi.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_rx_flow_control(struct lws *wsi, int enable);
+
+/**
+ * lws_rx_flow_allow_all_protocol() - Allow all connections with this protocol to receive
+ *
+ * When the user server code realizes it can accept more input, it can
+ * call this to have the RX flow restriction removed from all connections using
+ * the given protocol.
+ * \param context:	lws_context
+ * \param protocol:	all connections using this protocol will be allowed to receive
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_rx_flow_allow_all_protocol(const struct lws_context *context,
+			       const struct lws_protocols *protocol);
+
+/**
+ * lws_remaining_packet_payload() - Bytes to come before "overall"
+ *					      rx fragment is complete
+ * \param wsi:		Websocket instance (available from user callback)
+ *
+ * This tracks how many bytes are left in the current ws fragment, according
+ * to the ws length given in the fragment header.
+ *
+ * If the message was in a single fragment, and there is no compression, this
+ * is the same as "how much data is left to read for this message".
+ *
+ * However, if the message is being sent in multiple fragments, this will
+ * reflect the unread amount of the current **fragment**, not the message.  With
+ * ws, it is legal to not know the length of the message before it completes.
+ *
+ * Additionally if the message is sent via the negotiated permessage-deflate
+ * extension, this number only tells the amount of **compressed** data left to
+ * be read, since that is the only information available at the ws layer.
+ */
+LWS_VISIBLE LWS_EXTERN size_t
+lws_remaining_packet_payload(struct lws *wsi);
+
+
+/** \defgroup sock-adopt Socket adoption helpers
+ * ##Socket adoption helpers
+ *
+ * When integrating with an external app with its own event loop, these can
+ * be used to accept connections from someone else's listening socket.
+ *
+ * When using lws own event loop, these are not needed.
+ */
+///@{
+
+/**
+ * lws_adopt_socket() - adopt foreign socket as if listen socket accepted it
+ * for the default vhost of context.
+ *
+ * \param context: lws context
+ * \param accept_fd: fd of already-accepted socket to adopt
+ *
+ * Either returns new wsi bound to accept_fd, or closes accept_fd and
+ * returns NULL, having cleaned up any new wsi pieces.
+ *
+ * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
+ * to ws or just serve http.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd);
+/**
+ * lws_adopt_socket_vhost() - adopt foreign socket as if listen socket accepted it
+ * for vhost
+ *
+ * \param vh: lws vhost
+ * \param accept_fd: fd of already-accepted socket to adopt
+ *
+ * Either returns new wsi bound to accept_fd, or closes accept_fd and
+ * returns NULL, having cleaned up any new wsi pieces.
+ *
+ * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
+ * to ws or just serve http.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_adopt_socket_vhost(struct lws_vhost *vh, lws_sockfd_type accept_fd);
+
+typedef enum {
+	LWS_ADOPT_RAW_FILE_DESC = 0,	/* convenience constant */
+	LWS_ADOPT_HTTP = 1,		/* flag: absent implies RAW */
+	LWS_ADOPT_SOCKET = 2,		/* flag: absent implies file descr */
+	LWS_ADOPT_ALLOW_SSL = 4,	/* flag: if set requires LWS_ADOPT_SOCKET */
+	LWS_ADOPT_WS_PARENTIO = 8,	/* flag: ws mode parent handles IO
+					 *   if given must be only flag
+					 *   wsi put directly into ws mode */
+	LWS_ADOPT_FLAG_UDP = 16,	/* flag: socket is UDP */
+
+	LWS_ADOPT_RAW_SOCKET_UDP = LWS_ADOPT_SOCKET | LWS_ADOPT_FLAG_UDP,
+} lws_adoption_type;
+
+typedef union {
+	lws_sockfd_type sockfd;
+	lws_filefd_type filefd;
+} lws_sock_file_fd_type;
+
+#if !defined(LWS_WITH_ESP32)
+struct lws_udp {
+	struct sockaddr sa;
+	socklen_t salen;
+
+	struct sockaddr sa_pending;
+	socklen_t salen_pending;
+};
+#endif
+
+/*
+* lws_adopt_descriptor_vhost() - adopt foreign socket or file descriptor
+* if socket descriptor, should already have been accepted from listen socket
+*
+* \param vhost: lws vhost
+* \param type: OR-ed combinations of lws_adoption_type flags
+* \param fd: union with either .sockfd or .filefd set
+* \param vh_prot_name: NULL or vh protocol name to bind raw connection to
+* \param parent: NULL or struct lws to attach new_wsi to as a child
+*
+* Either returns new wsi bound to accept_fd, or closes accept_fd and
+* returns NULL, having cleaned up any new wsi pieces.
+*
+* If LWS_ADOPT_SOCKET is set, LWS adopts the socket in http serving mode, it's
+* ready to accept an upgrade to ws or just serve http.
+*
+* parent may be NULL, if given it should be an existing wsi that will become the
+* parent of the new wsi created by this call.
+*/
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_adopt_descriptor_vhost(struct lws_vhost *vh, lws_adoption_type type,
+			   lws_sock_file_fd_type fd, const char *vh_prot_name,
+			   struct lws *parent);
+
+/**
+ * lws_adopt_socket_readbuf() - adopt foreign socket and first rx as if listen socket accepted it
+ * for the default vhost of context.
+ * \param context:	lws context
+ * \param accept_fd:	fd of already-accepted socket to adopt
+ * \param readbuf:	NULL or pointer to data that must be drained before reading from
+ *		accept_fd
+ * \param len:	The length of the data held at \param readbuf
+ *
+ * Either returns new wsi bound to accept_fd, or closes accept_fd and
+ * returns NULL, having cleaned up any new wsi pieces.
+ *
+ * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
+ * to ws or just serve http.
+ *
+ * If your external code did not already read from the socket, you can use
+ * lws_adopt_socket() instead.
+ *
+ * This api is guaranteed to use the data at \param readbuf first, before reading from
+ * the socket.
+ *
+ * readbuf is limited to the size of the ah rx buf, currently 2048 bytes.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
+                         const char *readbuf, size_t len);
+/**
+ * lws_adopt_socket_vhost_readbuf() - adopt foreign socket and first rx as if listen socket
+ * accepted it for vhost.
+ * \param vhost:	lws vhost
+ * \param accept_fd:	fd of already-accepted socket to adopt
+ * \param readbuf:	NULL or pointer to data that must be drained before reading from
+ *			accept_fd
+ * \param len:		The length of the data held at \param readbuf
+ *
+ * Either returns new wsi bound to accept_fd, or closes accept_fd and
+ * returns NULL, having cleaned up any new wsi pieces.
+ *
+ * LWS adopts the socket in http serving mode, it's ready to accept an upgrade
+ * to ws or just serve http.
+ *
+ * If your external code did not already read from the socket, you can use
+ * lws_adopt_socket() instead.
+ *
+ * This api is guaranteed to use the data at \param readbuf first, before reading from
+ * the socket.
+ *
+ * readbuf is limited to the size of the ah rx buf, currently 2048 bytes.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_adopt_socket_vhost_readbuf(struct lws_vhost *vhost, lws_sockfd_type accept_fd,
+                               const char *readbuf, size_t len);
+
+#define LWS_CAUDP_BIND 1
+
+/**
+ * lws_create_adopt_udp() - create, bind and adopt a UDP socket
+ *
+ * \param vhost:	 lws vhost
+ * \param port:		 UDP port to bind to, -1 means unbound
+ * \param flags:	 0 or LWS_CAUDP_NO_BIND
+ * \param protocol_name: Name of protocol on vhost to bind wsi to
+ * \param parent_wsi:	 NULL or parent wsi new wsi will be a child of
+ *
+ * Either returns new wsi bound to accept_fd, or closes accept_fd and
+ * returns NULL, having cleaned up any new wsi pieces.
+ * */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_create_adopt_udp(struct lws_vhost *vhost, int port, int flags,
+		     const char *protocol_name, struct lws *parent_wsi);
+///@}
+
+/** \defgroup net Network related helper APIs
+ * ##Network related helper APIs
+ *
+ * These wrap miscellaneous useful network-related functions
+ */
+///@{
+
+/**
+ * lws_canonical_hostname() - returns this host's hostname
+ *
+ * This is typically used by client code to fill in the host parameter
+ * when making a client connection.  You can only call it after the context
+ * has been created.
+ *
+ * \param context:	Websocket context
+ */
+LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
+lws_canonical_hostname(struct lws_context *context);
+
+/**
+ * lws_get_peer_addresses() - Get client address information
+ * \param wsi:	Local struct lws associated with
+ * \param fd:		Connection socket descriptor
+ * \param name:	Buffer to take client address name
+ * \param name_len:	Length of client address name buffer
+ * \param rip:	Buffer to take client address IP dotted quad
+ * \param rip_len:	Length of client address IP buffer
+ *
+ *	This function fills in name and rip with the name and IP of
+ *	the client connected with socket descriptor fd.  Names may be
+ *	truncated if there is not enough room.  If either cannot be
+ *	determined, they will be returned as valid zero-length strings.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_get_peer_addresses(struct lws *wsi, lws_sockfd_type fd, char *name,
+		       int name_len, char *rip, int rip_len);
+
+/**
+ * lws_get_peer_simple() - Get client address information without RDNS
+ *
+ * \param wsi:	Local struct lws associated with
+ * \param name:	Buffer to take client address name
+ * \param namelen:	Length of client address name buffer
+ *
+ * This provides a 123.123.123.123 type IP address in name from the
+ * peer that has connected to wsi
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_get_peer_simple(struct lws *wsi, char *name, int namelen);
+
+
+#define LWS_ITOSA_NOT_EXIST -1
+#define LWS_ITOSA_NOT_USABLE -2
+#define LWS_ITOSA_USABLE 0
+#if !defined(LWS_WITH_ESP32)
+/**
+ * lws_interface_to_sa() - Convert interface name or IP to sockaddr struct
+ *
+ * \param ipv6:		Allow IPV6 addresses
+ * \param ifname:	Interface name or IP
+ * \param addr:		struct sockaddr_in * to be written
+ * \param addrlen:	Length of addr
+ *
+ * This converts a textual network interface name to a sockaddr usable by
+ * other network functions.
+ *
+ * If the network interface doesn't exist, it will return LWS_ITOSA_NOT_EXIST.
+ *
+ * If the network interface is not usable, eg ethernet cable is removed, it
+ * may logically exist but not have any IP address.  As such it will return
+ * LWS_ITOSA_NOT_USABLE.
+ *
+ * If the network interface exists and is usable, it will return
+ * LWS_ITOSA_USABLE.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
+		    size_t addrlen);
+///@}
+#endif
+
+/** \defgroup misc Miscellaneous APIs
+* ##Miscellaneous APIs
+*
+* Various APIs outside of other categories
+*/
+///@{
+
+/**
+ * lws_start_foreach_ll(): linkedlist iterator helper start
+ *
+ * \param type: type of iteration, eg, struct xyz *
+ * \param it: iterator var name to create
+ * \param start: start of list
+ *
+ * This helper creates an iterator and starts a while (it) {
+ * loop.  The iterator runs through the linked list starting at start and
+ * ends when it gets a NULL.
+ * The while loop should be terminated using lws_start_foreach_ll().
+ */
+#define lws_start_foreach_ll(type, it, start)\
+{ \
+	type it = start; \
+	while (it) {
+
+/**
+ * lws_end_foreach_ll(): linkedlist iterator helper end
+ *
+ * \param it: same iterator var name given when starting
+ * \param nxt: member name in the iterator pointing to next list element
+ *
+ * This helper is the partner for lws_start_foreach_ll() that ends the
+ * while loop.
+ */
+
+#define lws_end_foreach_ll(it, nxt) \
+		it = it->nxt; \
+	} \
+}
+
+/**
+ * lws_start_foreach_llp(): linkedlist pointer iterator helper start
+ *
+ * \param type: type of iteration, eg, struct xyz **
+ * \param it: iterator var name to create
+ * \param start: start of list
+ *
+ * This helper creates an iterator and starts a while (it) {
+ * loop.  The iterator runs through the linked list starting at the
+ * address of start and ends when it gets a NULL.
+ * The while loop should be terminated using lws_start_foreach_llp().
+ *
+ * This helper variant iterates using a pointer to the previous linked-list
+ * element.  That allows you to easily delete list members by rewriting the
+ * previous pointer to the element's next pointer.
+ */
+#define lws_start_foreach_llp(type, it, start)\
+{ \
+	type it = &(start); \
+	while (*(it)) {
+
+#define lws_start_foreach_llp_safe(type, it, start, nxt)\
+{ \
+	type it = &(start); \
+	type next; \
+	while (*(it)) { \
+		next = &((*(it))->nxt); \
+
+/**
+ * lws_end_foreach_llp(): linkedlist pointer iterator helper end
+ *
+ * \param it: same iterator var name given when starting
+ * \param nxt: member name in the iterator pointing to next list element
+ *
+ * This helper is the partner for lws_start_foreach_llp() that ends the
+ * while loop.
+ */
+
+#define lws_end_foreach_llp(it, nxt) \
+		it = &(*(it))->nxt; \
+	} \
+}
+
+#define lws_end_foreach_llp_safe(it) \
+		it = next; \
+	} \
+}
+
+#define lws_ll_fwd_insert(\
+	___new_object,	/* pointer to new object */ \
+	___m_list,	/* member for next list object ptr */ \
+	___list_head	/* list head */ \
+		) {\
+		___new_object->___m_list = ___list_head; \
+		___list_head = ___new_object; \
+	}
+
+#define lws_ll_fwd_remove(\
+	___type,	/* type of listed object */ \
+	___m_list,	/* member for next list object ptr */ \
+	___target,	/* object to remove from list */ \
+	___list_head	/* list head */ \
+	) { \
+                lws_start_foreach_llp(___type **, ___ppss, ___list_head) { \
+                        if (*___ppss == ___target) { \
+                                *___ppss = ___target->___m_list; \
+                                break; \
+                        } \
+                } lws_end_foreach_llp(___ppss, ___m_list); \
+	}
+
+/*
+ * doubly linked-list
+ */
+
+struct lws_dll { /* abstract */
+	struct lws_dll *prev;
+	struct lws_dll *next;
+};
+
+/*
+ * these all point to the composed list objects... you have to use the
+ * lws_container_of() helper to recover the start of the containing struct
+ */
+
+LWS_VISIBLE LWS_EXTERN void
+lws_dll_add_front(struct lws_dll *d, struct lws_dll *phead);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_dll_remove(struct lws_dll *d);
+
+struct lws_dll_lws { /* typed as struct lws * */
+	struct lws_dll_lws *prev;
+	struct lws_dll_lws *next;
+};
+
+#define lws_dll_is_null(___dll) (!(___dll)->prev && !(___dll)->next)
+
+static LWS_INLINE void
+lws_dll_lws_add_front(struct lws_dll_lws *_a, struct lws_dll_lws *_head)
+{
+	lws_dll_add_front((struct lws_dll *)_a, (struct lws_dll *)_head);
+}
+
+static LWS_INLINE void
+lws_dll_lws_remove(struct lws_dll_lws *_a)
+{
+	lws_dll_remove((struct lws_dll *)_a);
+}
+
+/*
+ * these are safe against the current container object getting deleted,
+ * since the hold his next in a temp and go to that next.  ___tmp is
+ * the temp.
+ */
+
+#define lws_start_foreach_dll_safe(___type, ___it, ___tmp, ___start) \
+{ \
+	___type ___it = ___start; \
+	while (___it) { \
+		___type ___tmp = (___it)->next;
+
+#define lws_end_foreach_dll_safe(___it, ___tmp) \
+		___it = ___tmp; \
+	} \
+}
+
+#define lws_start_foreach_dll(___type, ___it, ___start) \
+{ \
+	___type ___it = ___start; \
+	while (___it) {
+
+#define lws_end_foreach_dll(___it) \
+		___it = (___it)->next; \
+	} \
+}
+
+struct lws_buflist;
+
+/**
+ * lws_buflist_append_segment(): add buffer to buflist at head
+ *
+ * \param head: list head
+ * \param buf: buffer to stash
+ * \param len: length of buffer to stash
+ *
+ * Returns -1 on OOM, 1 if this was the first segment on the list, and 0 if
+ * it was a subsequent segment.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_buflist_append_segment(struct lws_buflist **head, const uint8_t *buf,
+			   size_t len);
+/**
+ * lws_buflist_next_segment_len(): number of bytes left in current segment
+ *
+ * \param head: list head
+ * \param buf: if non-NULL, *buf is written with the address of the start of
+ *		the remaining data in the segment
+ *
+ * Returns the number of bytes left in the current segment.  0 indicates
+ * that the buflist is empty (there are no segments on the buflist).
+ */
+LWS_VISIBLE LWS_EXTERN size_t
+lws_buflist_next_segment_len(struct lws_buflist **head, uint8_t **buf);
+/**
+ * lws_buflist_use_segment(): remove len bytes from the current segment
+ *
+ * \param head: list head
+ * \param len: number of bytes to mark as used
+ *
+ * If len is less than the remaining length of the current segment, the position
+ * in the current segment is simply advanced and it returns.
+ *
+ * If len uses up the remaining length of the current segment, then the segment
+ * is deleted and the list head moves to the next segment if any.
+ *
+ * Returns the number of bytes left in the current segment.  0 indicates
+ * that the buflist is empty (there are no segments on the buflist).
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_buflist_use_segment(struct lws_buflist **head, size_t len);
+/**
+ * lws_buflist_destroy_all_segments(): free all segments on the list
+ *
+ * \param head: list head
+ *
+ * This frees everything on the list unconditionally.  *head is always
+ * NULL after this.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_buflist_destroy_all_segments(struct lws_buflist **head);
+
+void
+lws_buflist_describe(struct lws_buflist **head, void *id);
+
+/**
+ * lws_ptr_diff(): helper to report distance between pointers as an int
+ *
+ * \param head: the pointer with the larger address
+ * \param tail: the pointer with the smaller address
+ *
+ * This helper gives you an int representing the number of bytes further
+ * forward the first pointer is compared to the second pointer.
+ */
+#define lws_ptr_diff(head, tail) \
+			((int)((char *)(head) - (char *)(tail)))
+
+/**
+ * lws_snprintf(): snprintf that truncates the returned length too
+ *
+ * \param str: destination buffer
+ * \param size: bytes left in destination buffer
+ * \param format: format string
+ * \param ...: args for format
+ *
+ * This lets you correctly truncate buffers by concatenating lengths, if you
+ * reach the limit the reported length doesn't exceed the limit.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_snprintf(char *str, size_t size, const char *format, ...) LWS_FORMAT(3);
+
+/**
+ * lws_strncpy(): strncpy that guarantees NUL on truncated copy
+ *
+ * \param dest: destination buffer
+ * \param src: source buffer
+ * \param size: bytes left in destination buffer
+ *
+ * This lets you correctly truncate buffers by concatenating lengths, if you
+ * reach the limit the reported length doesn't exceed the limit.
+ */
+LWS_VISIBLE LWS_EXTERN char *
+lws_strncpy(char *dest, const char *src, size_t size);
+
+/**
+ * lws_get_random(): fill a buffer with platform random data
+ *
+ * \param context: the lws context
+ * \param buf: buffer to fill
+ * \param len: how much to fill
+ *
+ * This is intended to be called from the LWS_CALLBACK_RECEIVE callback if
+ * it's interested to see if the frame it's dealing with was sent in binary
+ * mode.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_get_random(struct lws_context *context, void *buf, int len);
+/**
+ * lws_daemonize(): make current process run in the background
+ *
+ * \param _lock_path: the filepath to write the lock file
+ *
+ * Spawn lws as a background process, taking care of various things
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_daemonize(const char *_lock_path);
+/**
+ * lws_get_library_version(): return string describing the version of lws
+ *
+ * On unix, also includes the git describe
+ */
+LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
+lws_get_library_version(void);
+
+/**
+ * lws_wsi_user() - get the user data associated with the connection
+ * \param wsi: lws connection
+ *
+ * Not normally needed since it's passed into the callback
+ */
+LWS_VISIBLE LWS_EXTERN void *
+lws_wsi_user(struct lws *wsi);
+
+/**
+ * lws_wsi_set_user() - set the user data associated with the client connection
+ * \param wsi: lws connection
+ * \param user: user data
+ *
+ * By default lws allocates this and it's not legal to externally set it
+ * yourself.  However client connections may have it set externally when the
+ * connection is created... if so, this api can be used to modify it at
+ * runtime additionally.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_set_wsi_user(struct lws *wsi, void *user);
+
+/**
+ * lws_parse_uri:	cut up prot:/ads:port/path into pieces
+ *			Notice it does so by dropping '\0' into input string
+ *			and the leading / on the path is consequently lost
+ *
+ * \param p:			incoming uri string.. will get written to
+ * \param prot:		result pointer for protocol part (https://)
+ * \param ads:		result pointer for address part
+ * \param port:		result pointer for port part
+ * \param path:		result pointer for path part
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
+	      const char **path);
+/**
+ * lws_cmdline_option():	simple commandline parser
+ *
+ * \param argc:		count of argument strings
+ * \param argv:		argument strings
+ * \param val:		string to find
+ *
+ * Returns NULL if the string \p val is not found in the arguments.
+ *
+ * If it is found, then it returns a pointer to the next character after \p val.
+ * So if \p val is "-d", then for the commandlines "myapp -d15" and
+ * "myapp -d 15", in both cases the return will point to the "15".
+ *
+ * In the case there is no argument, like "myapp -d", the return will
+ * either point to the '\\0' at the end of -d, or to the start of the
+ * next argument, ie, will be non-NULL.
+ */
+LWS_VISIBLE LWS_EXTERN const char *
+lws_cmdline_option(int argc, const char **argv, const char *val);
+
+/**
+ * lws_now_secs(): return seconds since 1970-1-1
+ */
+LWS_VISIBLE LWS_EXTERN unsigned long
+lws_now_secs(void);
+
+/**
+ * lws_compare_time_t(): return relationship between two time_t
+ *
+ * \param context: struct lws_context
+ * \param t1: time_t 1
+ * \param t2: time_t 2
+ *
+ * returns <0 if t2 > t1; >0 if t1 > t2; or == 0 if t1 == t2.
+ *
+ * This is aware of clock discontiguities that may have affected either t1 or
+ * t2 and adapts the comparison for them.
+ *
+ * For the discontiguity detection to work, you must avoid any arithmetic on
+ * the times being compared.  For example to have a timeout that triggers
+ * 15s from when it was set, store the time it was set and compare like
+ * `if (lws_compare_time_t(context, now, set_time) > 15)`
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_compare_time_t(struct lws_context *context, time_t t1, time_t t2);
+
+/**
+ * lws_get_context - Allow getting lws_context from a Websocket connection
+ * instance
+ *
+ * With this function, users can access context in the callback function.
+ * Otherwise users may have to declare context as a global variable.
+ *
+ * \param wsi:	Websocket connection instance
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_context * LWS_WARN_UNUSED_RESULT
+lws_get_context(const struct lws *wsi);
+
+/**
+ * lws_get_vhost_listen_port - Find out the port number a vhost is listening on
+ *
+ * In the case you passed 0 for the port number at context creation time, you
+ * can discover the port number that was actually chosen for the vhost using
+ * this api.
+ *
+ * \param vhost:	Vhost to get listen port from
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_get_vhost_listen_port(struct lws_vhost *vhost);
+
+/**
+ * lws_get_count_threads(): how many service threads the context uses
+ *
+ * \param context: the lws context
+ *
+ * By default this is always 1, if you asked for more than lws can handle it
+ * will clip the number of threads.  So you can use this to find out how many
+ * threads are actually in use.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_get_count_threads(struct lws_context *context);
+
+/**
+ * lws_get_parent() - get parent wsi or NULL
+ * \param wsi: lws connection
+ *
+ * Specialized wsi like cgi stdin/out/err are associated to a parent wsi,
+ * this allows you to get their parent.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
+lws_get_parent(const struct lws *wsi);
+
+/**
+ * lws_get_child() - get child wsi or NULL
+ * \param wsi: lws connection
+ *
+ * Allows you to find a related wsi from the parent wsi.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
+lws_get_child(const struct lws *wsi);
+
+/**
+ * lws_get_udp() - get wsi's udp struct
+ *
+ * \param wsi: lws connection
+ *
+ * Returns NULL or pointer to the wsi's UDP-specific information
+ */
+LWS_VISIBLE LWS_EXTERN const struct lws_udp * LWS_WARN_UNUSED_RESULT
+lws_get_udp(const struct lws *wsi);
+
+/**
+ * lws_parent_carries_io() - mark wsi as needing to send messages via parent
+ *
+ * \param wsi: child lws connection
+ */
+
+LWS_VISIBLE LWS_EXTERN void
+lws_set_parent_carries_io(struct lws *wsi);
+
+LWS_VISIBLE LWS_EXTERN void *
+lws_get_opaque_parent_data(const struct lws *wsi);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_set_opaque_parent_data(struct lws *wsi, void *data);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_get_child_pending_on_writable(const struct lws *wsi);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_clear_child_pending_on_writable(struct lws *wsi);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_get_close_length(struct lws *wsi);
+
+LWS_VISIBLE LWS_EXTERN unsigned char *
+lws_get_close_payload(struct lws *wsi);
+
+/**
+ * lws_get_network_wsi() - Returns wsi that has the tcp connection for this wsi
+ *
+ * \param wsi: wsi you have
+ *
+ * Returns wsi that has the tcp connection (which may be the incoming wsi)
+ *
+ * HTTP/1 connections will always return the incoming wsi
+ * HTTP/2 connections may return a different wsi that has the tcp connection
+ */
+LWS_VISIBLE LWS_EXTERN
+struct lws *lws_get_network_wsi(struct lws *wsi);
+
+/**
+ * lws_set_allocator() - custom allocator support
+ *
+ * \param realloc
+ *
+ * Allows you to replace the allocator (and deallocator) used by lws
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_set_allocator(void *(*realloc)(void *ptr, size_t size, const char *reason));
+///@}
+
+/** \defgroup wsstatus Websocket status APIs
+ * ##Websocket connection status APIs
+ *
+ * These provide information about ws connection or message status
+ */
+///@{
+/**
+ * lws_send_pipe_choked() - tests if socket is writable or not
+ * \param wsi: lws connection
+ *
+ * Allows you to check if you can write more on the socket
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_send_pipe_choked(struct lws *wsi);
+
+/**
+ * lws_is_final_fragment() - tests if last part of ws message
+ *
+ * \param wsi: lws connection
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_is_final_fragment(struct lws *wsi);
+
+/**
+ * lws_is_first_fragment() - tests if first part of ws message
+ *
+ * \param wsi: lws connection
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_is_first_fragment(struct lws *wsi);
+
+/**
+ * lws_get_reserved_bits() - access reserved bits of ws frame
+ * \param wsi: lws connection
+ */
+LWS_VISIBLE LWS_EXTERN unsigned char
+lws_get_reserved_bits(struct lws *wsi);
+
+/**
+ * lws_partial_buffered() - find out if lws buffered the last write
+ * \param wsi:	websocket connection to check
+ *
+ * Returns 1 if you cannot use lws_write because the last
+ * write on this connection is still buffered, and can't be cleared without
+ * returning to the service loop and waiting for the connection to be
+ * writeable again.
+ *
+ * If you will try to do >1 lws_write call inside a single
+ * WRITEABLE callback, you must check this after every write and bail if
+ * set, ask for a new writeable callback and continue writing from there.
+ *
+ * This is never set at the start of a writeable callback, but any write
+ * may set it.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_partial_buffered(struct lws *wsi);
+
+/**
+ * lws_frame_is_binary(): true if the current frame was sent in binary mode
+ *
+ * \param wsi: the connection we are inquiring about
+ *
+ * This is intended to be called from the LWS_CALLBACK_RECEIVE callback if
+ * it's interested to see if the frame it's dealing with was sent in binary
+ * mode.
+ */
+LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
+lws_frame_is_binary(struct lws *wsi);
+
+/**
+ * lws_is_ssl() - Find out if connection is using SSL
+ * \param wsi:	websocket connection to check
+ *
+ *	Returns 0 if the connection is not using SSL, 1 if using SSL and
+ *	using verified cert, and 2 if using SSL but the cert was not
+ *	checked (appears for client wsi told to skip check on connection)
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_is_ssl(struct lws *wsi);
+/**
+ * lws_is_cgi() - find out if this wsi is running a cgi process
+ * \param wsi: lws connection
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_is_cgi(struct lws *wsi);
+
+
+struct lws_wifi_scan { /* generic wlan scan item */
+	struct lws_wifi_scan *next;
+	char ssid[32];
+	int32_t rssi; /* divide by .count to get db */
+	uint8_t bssid[6];
+	uint8_t count;
+	uint8_t channel;
+	uint8_t authmode;
+};
+
+#if defined(LWS_WITH_TLS) && !defined(LWS_WITH_MBEDTLS)
+/**
+ * lws_get_ssl() - Return wsi's SSL context structure
+ * \param wsi:	websocket connection
+ *
+ * Returns pointer to the SSL library's context structure
+ */
+LWS_VISIBLE LWS_EXTERN SSL*
+lws_get_ssl(struct lws *wsi);
+#endif
+
+enum lws_tls_cert_info {
+	LWS_TLS_CERT_INFO_VALIDITY_FROM,
+	/**< fills .time with the time_t the cert validity started from */
+	LWS_TLS_CERT_INFO_VALIDITY_TO,
+	/**< fills .time with the time_t the cert validity ends at */
+	LWS_TLS_CERT_INFO_COMMON_NAME,
+	/**< fills up to len bytes of .ns.name with the cert common name */
+	LWS_TLS_CERT_INFO_ISSUER_NAME,
+	/**< fills up to len bytes of .ns.name with the cert issuer name */
+	LWS_TLS_CERT_INFO_USAGE,
+	/**< fills verified with a bitfield asserting the valid uses */
+	LWS_TLS_CERT_INFO_VERIFIED,
+	/**< fills .verified with a bool representing peer cert validity,
+	 *   call returns -1 if no cert */
+	LWS_TLS_CERT_INFO_OPAQUE_PUBLIC_KEY,
+	/**< the certificate's public key, as an opaque bytestream.  These
+	 * opaque bytestreams can only be compared with each other using the
+	 * same tls backend, ie, OpenSSL or mbedTLS.  The different backends
+	 * produce different, incompatible representations for the same cert.
+	 */
+};
+
+union lws_tls_cert_info_results {
+	unsigned int verified;
+	time_t time;
+	unsigned int usage;
+	struct {
+		int len;
+		/* KEEP LAST... notice the [64] is only there because
+		 * name[] is not allowed in a union.  The actual length of
+		 * name[] is arbitrary and is passed into the api using the
+		 * len parameter.  Eg
+		 *
+		 * char big[1024];
+		 * union lws_tls_cert_info_results *buf =
+		 * 	(union lws_tls_cert_info_results *)big;
+		 *
+		 * lws_tls_peer_cert_info(wsi, type, buf, sizeof(big) -
+		 *			  sizeof(*buf) + sizeof(buf->ns.name));
+		 */
+		char name[64];
+	} ns;
+};
+
+/**
+ * lws_tls_peer_cert_info() - get information from the peer's TLS cert
+ *
+ * \param wsi: the connection to query
+ * \param type: one of LWS_TLS_CERT_INFO_
+ * \param buf: pointer to union to take result
+ * \param len: when result is a string, the true length of buf->ns.name[]
+ *
+ * lws_tls_peer_cert_info() lets you get hold of information from the peer
+ * certificate.
+ *
+ * Return 0 if there is a result in \p buf, or -1 indicating there was no cert
+ * or another problem.
+ *
+ * This function works the same no matter if the TLS backend is OpenSSL or
+ * mbedTLS.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_tls_peer_cert_info(struct lws *wsi, enum lws_tls_cert_info type,
+		       union lws_tls_cert_info_results *buf, size_t len);
+
+/**
+ * lws_tls_vhost_cert_info() - get information from the vhost's own TLS cert
+ *
+ * \param vhost: the vhost to query
+ * \param type: one of LWS_TLS_CERT_INFO_
+ * \param buf: pointer to union to take result
+ * \param len: when result is a string, the true length of buf->ns.name[]
+ *
+ * lws_tls_vhost_cert_info() lets you get hold of information from the vhost
+ * certificate.
+ *
+ * Return 0 if there is a result in \p buf, or -1 indicating there was no cert
+ * or another problem.
+ *
+ * This function works the same no matter if the TLS backend is OpenSSL or
+ * mbedTLS.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_tls_vhost_cert_info(struct lws_vhost *vhost, enum lws_tls_cert_info type,
+		        union lws_tls_cert_info_results *buf, size_t len);
+
+/**
+ * lws_tls_acme_sni_cert_create() - creates a temp selfsigned cert
+ *				    and attaches to a vhost
+ *
+ * \param vhost: the vhost to acquire the selfsigned cert
+ * \param san_a: SAN written into the certificate
+ * \param san_b: second SAN written into the certificate
+ *
+ *
+ * Returns 0 if created and attached to the vhost.  Returns -1 if problems and
+ * frees all allocations before returning.
+ *
+ * On success, any allocations are destroyed at vhost destruction automatically.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_tls_acme_sni_cert_create(struct lws_vhost *vhost, const char *san_a,
+			     const char *san_b);
+
+/**
+ * lws_tls_acme_sni_csr_create() - creates a CSR and related private key PEM
+ *
+ * \param context: lws_context used for random
+ * \param elements: array of LWS_TLS_REQ_ELEMENT_COUNT const char *
+ * \param csr: buffer that will get the b64URL(ASN-1 CSR)
+ * \param csr_len: max length of the csr buffer
+ * \param privkey_pem: pointer to pointer allocated to hold the privkey_pem
+ * \param privkey_len: pointer to size_t set to the length of the privkey_pem
+ *
+ * Creates a CSR according to the information in \p elements, and a private
+ * RSA key used to sign the CSR.
+ *
+ * The outputs are the b64URL(ASN-1 CSR) into csr, and the PEM private key into
+ * privkey_pem.
+ *
+ * Notice that \p elements points to an array of const char *s pointing to the
+ * information listed in the enum above.  If an entry is NULL or an empty
+ * string, the element is set to "none" in the CSR.
+ *
+ * Returns 0 on success or nonzero for failure.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_tls_acme_sni_csr_create(struct lws_context *context, const char *elements[],
+			    uint8_t *csr, size_t csr_len, char **privkey_pem,
+			    size_t *privkey_len);
+
+/**
+ * lws_tls_cert_updated() - update every vhost using the given cert path
+ *
+ * \param context: our lws_context
+ * \param certpath: the filepath to the certificate
+ * \param keypath: the filepath to the private key of the certificate
+ * \param mem_cert: copy of the cert in memory
+ * \param len_mem_cert: length of the copy of the cert in memory
+ * \param mem_privkey: copy of the private key in memory
+ * \param len_mem_privkey: length of the copy of the private key in memory
+ *
+ * Checks every vhost to see if it is the using certificate described by the
+ * the given filepaths.  If so, it attempts to update the vhost ssl_ctx to use
+ * the new certificate.
+ *
+ * Returns 0 on success or nonzero for failure.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_tls_cert_updated(struct lws_context *context, const char *certpath,
+		     const char *keypath,
+		     const char *mem_cert, size_t len_mem_cert,
+		     const char *mem_privkey, size_t len_mem_privkey);
+///@}
+
+/** \defgroup lws_ring LWS Ringbuffer APIs
+ * ##lws_ring: generic ringbuffer struct
+ *
+ * Provides an abstract ringbuffer api supporting one head and one or an
+ * unlimited number of tails.
+ *
+ * All of the members are opaque and manipulated by lws_ring_...() apis.
+ *
+ * The lws_ring and its buffer is allocated at runtime on the heap, using
+ *
+ *  - lws_ring_create()
+ *  - lws_ring_destroy()
+ *
+ * It may contain any type, the size of the "element" stored in the ring
+ * buffer and the number of elements is given at creation time.
+ *
+ * When you create the ringbuffer, you can optionally provide an element
+ * destroy callback that frees any allocations inside the element.  This is then
+ * automatically called for elements with no tail behind them, ie, elements
+ * which don't have any pending consumer are auto-freed.
+ *
+ * Whole elements may be inserted into the ringbuffer and removed from it, using
+ *
+ *  - lws_ring_insert()
+ *  - lws_ring_consume()
+ *
+ * You can find out how many whole elements are free or waiting using
+ *
+ *  - lws_ring_get_count_free_elements()
+ *  - lws_ring_get_count_waiting_elements()
+ *
+ * In addition there are special purpose optional byte-centric apis
+ *
+ *  - lws_ring_next_linear_insert_range()
+ *  - lws_ring_bump_head()
+ *
+ *  which let you, eg, read() directly into the ringbuffer without needing
+ *  an intermediate bounce buffer.
+ *
+ *  The accessors understand that the ring wraps, and optimizes insertion and
+ *  consumption into one or two memcpy()s depending on if the head or tail
+ *  wraps.
+ *
+ *  lws_ring only supports a single head, but optionally multiple tails with
+ *  an API to inform it when the "oldest" tail has moved on.  You can give
+ *  NULL where-ever an api asks for a tail pointer, and it will use an internal
+ *  single tail pointer for convenience.
+ *
+ *  The "oldest tail", which is the only tail if you give it NULL instead of
+ *  some other tail, is used to track which elements in the ringbuffer are
+ *  still unread by anyone.
+ *
+ *   - lws_ring_update_oldest_tail()
+ */
+///@{
+struct lws_ring;
+
+/**
+ * lws_ring_create(): create a new ringbuffer
+ *
+ * \param element_len: the size in bytes of one element in the ringbuffer
+ * \param count: the number of elements the ringbuffer can contain
+ * \param destroy_element: NULL, or callback to be called for each element
+ *			   that is removed from the ringbuffer due to the
+ *			   oldest tail moving beyond it
+ *
+ * Creates the ringbuffer and allocates the storage.  Returns the new
+ * lws_ring *, or NULL if the allocation failed.
+ *
+ * If non-NULL, destroy_element will get called back for every element that is
+ * retired from the ringbuffer after the oldest tail has gone past it, and for
+ * any element still left in the ringbuffer when it is destroyed.  It replaces
+ * all other element destruction code in your user code.
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_ring *
+lws_ring_create(size_t element_len, size_t count,
+		void (*destroy_element)(void *element));
+
+/**
+ * lws_ring_destroy():  destroy a previously created ringbuffer
+ *
+ * \param ring: the struct lws_ring to destroy
+ *
+ * Destroys the ringbuffer allocation and the struct lws_ring itself.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_ring_destroy(struct lws_ring *ring);
+
+/**
+ * lws_ring_get_count_free_elements():  return how many elements can fit
+ *				      in the free space
+ *
+ * \param ring: the struct lws_ring to report on
+ *
+ * Returns how much room is left in the ringbuffer for whole element insertion.
+ */
+LWS_VISIBLE LWS_EXTERN size_t
+lws_ring_get_count_free_elements(struct lws_ring *ring);
+
+/**
+ * lws_ring_get_count_waiting_elements():  return how many elements can be consumed
+ *
+ * \param ring: the struct lws_ring to report on
+ * \param tail: a pointer to the tail struct to use, or NULL for single tail
+ *
+ * Returns how many elements are waiting to be consumed from the perspective
+ * of the tail pointer given.
+ */
+LWS_VISIBLE LWS_EXTERN size_t
+lws_ring_get_count_waiting_elements(struct lws_ring *ring, uint32_t *tail);
+
+/**
+ * lws_ring_insert():  attempt to insert up to max_count elements from src
+ *
+ * \param ring: the struct lws_ring to report on
+ * \param src: the array of elements to be inserted
+ * \param max_count: the number of available elements at src
+ *
+ * Attempts to insert as many of the elements at src as possible, up to the
+ * maximum max_count.  Returns the number of elements actually inserted.
+ */
+LWS_VISIBLE LWS_EXTERN size_t
+lws_ring_insert(struct lws_ring *ring, const void *src, size_t max_count);
+
+/**
+ * lws_ring_consume():  attempt to copy out and remove up to max_count elements
+ *		        to src
+ *
+ * \param ring: the struct lws_ring to report on
+ * \param tail: a pointer to the tail struct to use, or NULL for single tail
+ * \param dest: the array of elements to be inserted. or NULL for no copy
+ * \param max_count: the number of available elements at src
+ *
+ * Attempts to copy out as many waiting elements as possible into dest, from
+ * the perspective of the given tail, up to max_count.  If dest is NULL, the
+ * copying out is not done but the elements are logically consumed as usual.
+ * NULL dest is useful in combination with lws_ring_get_element(), where you
+ * can use the element direct from the ringbuffer and then call this with NULL
+ * dest to logically consume it.
+ *
+ * Increments the tail position according to how many elements could be
+ * consumed.
+ *
+ * Returns the number of elements consumed.
+ */
+LWS_VISIBLE LWS_EXTERN size_t
+lws_ring_consume(struct lws_ring *ring, uint32_t *tail, void *dest,
+		 size_t max_count);
+
+/**
+ * lws_ring_get_element():  get a pointer to the next waiting element for tail
+ *
+ * \param ring: the struct lws_ring to report on
+ * \param tail: a pointer to the tail struct to use, or NULL for single tail
+ *
+ * Points to the next element that tail would consume, directly in the
+ * ringbuffer.  This lets you write() or otherwise use the element without
+ * having to copy it out somewhere first.
+ *
+ * After calling this, you must call lws_ring_consume(ring, &tail, NULL, 1)
+ * which will logically consume the element you used up and increment your
+ * tail (tail may also be NULL there if you use a single tail).
+ *
+ * Returns NULL if no waiting element, or a const void * pointing to it.
+ */
+LWS_VISIBLE LWS_EXTERN const void *
+lws_ring_get_element(struct lws_ring *ring, uint32_t *tail);
+
+/**
+ * lws_ring_update_oldest_tail():  free up elements older than tail for reuse
+ *
+ * \param ring: the struct lws_ring to report on
+ * \param tail: a pointer to the tail struct to use, or NULL for single tail
+ *
+ * If you are using multiple tails, you must use this API to inform the
+ * lws_ring when none of the tails still need elements in the fifo any more,
+ * by updating it when the "oldest" tail has moved on.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_ring_update_oldest_tail(struct lws_ring *ring, uint32_t tail);
+
+/**
+ * lws_ring_get_oldest_tail():  get current oldest available data index
+ *
+ * \param ring: the struct lws_ring to report on
+ *
+ * If you are initializing a new ringbuffer consumer, you can set its tail to
+ * this to start it from the oldest ringbuffer entry still available.
+ */
+LWS_VISIBLE LWS_EXTERN uint32_t
+lws_ring_get_oldest_tail(struct lws_ring *ring);
+
+/**
+ * lws_ring_next_linear_insert_range():  used to write directly into the ring
+ *
+ * \param ring: the struct lws_ring to report on
+ * \param start: pointer to a void * set to the start of the next ringbuffer area
+ * \param bytes: pointer to a size_t set to the max length you may use from *start
+ *
+ * This provides a low-level, bytewise access directly into the ringbuffer
+ * allowing direct insertion of data without having to use a bounce buffer.
+ *
+ * The api reports the position and length of the next linear range that can
+ * be written in the ringbuffer, ie, up to the point it would wrap, and sets
+ * *start and *bytes accordingly.  You can then, eg, directly read() into
+ * *start for up to *bytes, and use lws_ring_bump_head() to update the lws_ring
+ * with what you have done.
+ *
+ * Returns nonzero if no insertion is currently possible.
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_ring_next_linear_insert_range(struct lws_ring *ring, void **start,
+				  size_t *bytes);
+
+/**
+ * lws_ring_bump_head():  used to write directly into the ring
+ *
+ * \param ring: the struct lws_ring to operate on
+ * \param bytes: the number of bytes you inserted at the current head
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_ring_bump_head(struct lws_ring *ring, size_t bytes);
+
+LWS_VISIBLE LWS_EXTERN void
+lws_ring_dump(struct lws_ring *ring, uint32_t *tail);
+
+/*
+ * This is a helper that combines the common pattern of needing to consume
+ * some ringbuffer elements, move the consumer tail on, and check if that
+ * has moved any ringbuffer elements out of scope, because it was the last
+ * consumer that had not already consumed them.
+ *
+ * Elements that go out of scope because the oldest tail is now after them
+ * get garbage-collected by calling the destroy_element callback on them
+ * defined when the ringbuffer was created.
+ */
+
+#define lws_ring_consume_and_update_oldest_tail(\
+		___ring,    /* the lws_ring object */ \
+		___type,    /* type of objects with tails */ \
+		___ptail,   /* ptr to tail of obj with tail doing consuming */ \
+		___count,   /* count of payload objects being consumed */ \
+		___list_head,	/* head of list of objects with tails */ \
+		___mtail,   /* member name of tail in ___type */ \
+		___mlist  /* member name of next list member ptr in ___type */ \
+	) { \
+		int ___n, ___m; \
+	\
+	___n = lws_ring_get_oldest_tail(___ring) == *(___ptail); \
+	lws_ring_consume(___ring, ___ptail, NULL, ___count); \
+	if (___n) { \
+		uint32_t ___oldest; \
+		___n = 0; \
+		___oldest = *(___ptail); \
+		lws_start_foreach_llp(___type **, ___ppss, ___list_head) { \
+			___m = lws_ring_get_count_waiting_elements( \
+					___ring, &(*___ppss)->tail); \
+			if (___m >= ___n) { \
+				___n = ___m; \
+				___oldest = (*___ppss)->tail; \
+			} \
+		} lws_end_foreach_llp(___ppss, ___mlist); \
+	\
+		lws_ring_update_oldest_tail(___ring, ___oldest); \
+	} \
+}
+
+/*
+ * This does the same as the lws_ring_consume_and_update_oldest_tail()
+ * helper, but for the simpler case there is only one consumer, so one
+ * tail, and that tail is always the oldest tail.
+ */
+
+#define lws_ring_consume_single_tail(\
+		___ring,  /* the lws_ring object */ \
+		___ptail, /* ptr to tail of obj with tail doing consuming */ \
+		___count  /* count of payload objects being consumed */ \
+	) { \
+	lws_ring_consume(___ring, ___ptail, NULL, ___count); \
+	lws_ring_update_oldest_tail(___ring, *(___ptail)); \
+}
+///@}
+
+/** \defgroup sha SHA and B64 helpers
+ * ##SHA and B64 helpers
+ *
+ * These provide SHA-1 and B64 helper apis
+ */
+///@{
+#ifdef LWS_SHA1_USE_OPENSSL_NAME
+#define lws_SHA1 SHA1
+#else
+/**
+ * lws_SHA1(): make a SHA-1 digest of a buffer
+ *
+ * \param d: incoming buffer
+ * \param n: length of incoming buffer
+ * \param md: buffer for message digest (must be >= 20 bytes)
+ *
+ * Reduces any size buffer into a 20-byte SHA-1 hash.
+ */
+LWS_VISIBLE LWS_EXTERN unsigned char *
+lws_SHA1(const unsigned char *d, size_t n, unsigned char *md);
+#endif
+/**
+ * lws_b64_encode_string(): encode a string into base 64
+ *
+ * \param in: incoming buffer
+ * \param in_len: length of incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Encodes a string using b64
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_encode_string(const char *in, int in_len, char *out, int out_size);
+/**
+ * lws_b64_encode_string_url(): encode a string into base 64
+ *
+ * \param in: incoming buffer
+ * \param in_len: length of incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Encodes a string using b64 with the "URL" variant (+ -> -, and / -> _)
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_encode_string_url(const char *in, int in_len, char *out, int out_size);
+/**
+ * lws_b64_decode_string(): decode a string from base 64
+ *
+ * \param in: incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Decodes a NUL-terminated string using b64
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_decode_string(const char *in, char *out, int out_size);
+/**
+ * lws_b64_decode_string_len(): decode a string from base 64
+ *
+ * \param in: incoming buffer
+ * \param in_len: length of incoming buffer
+ * \param out: result buffer
+ * \param out_size: length of result buffer
+ *
+ * Decodes a range of chars using b64
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_b64_decode_string_len(const char *in, int in_len, char *out, int out_size);
+///@}
+
+
+/*! \defgroup cgi cgi handling
+ *
+ * ##CGI handling
+ *
+ * These functions allow low-level control over stdin/out/err of the cgi.
+ *
+ * However for most cases, binding the cgi to http in and out, the default
+ * lws implementation already does the right thing.
+ */
+
+enum lws_enum_stdinouterr {
+	LWS_STDIN = 0,
+	LWS_STDOUT = 1,
+	LWS_STDERR = 2,
+};
+
+enum lws_cgi_hdr_state {
+	LCHS_HEADER,
+	LCHS_CR1,
+	LCHS_LF1,
+	LCHS_CR2,
+	LCHS_LF2,
+	LHCS_RESPONSE,
+	LHCS_DUMP_HEADERS,
+	LHCS_PAYLOAD,
+	LCHS_SINGLE_0A,
+};
+
+struct lws_cgi_args {
+	struct lws **stdwsi; /**< get fd with lws_get_socket_fd() */
+	enum lws_enum_stdinouterr ch; /**< channel index */
+	unsigned char *data; /**< for messages with payload */
+	enum lws_cgi_hdr_state hdr_state; /**< track where we are in cgi headers */
+	int len; /**< length */
+};
+
+#ifdef LWS_WITH_CGI
+/**
+ * lws_cgi: spawn network-connected cgi process
+ *
+ * \param wsi: connection to own the process
+ * \param exec_array: array of "exec-name" "arg1" ... "argn" NULL
+ * \param script_uri_path_len: how many chars on the left of the uri are the
+ *        path to the cgi, or -1 to spawn without URL-related env vars
+ * \param timeout_secs: seconds script should be allowed to run
+ * \param mp_cgienv: pvo list with per-vhost cgi options to put in env
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_cgi(struct lws *wsi, const char * const *exec_array,
+	int script_uri_path_len, int timeout_secs,
+	const struct lws_protocol_vhost_options *mp_cgienv);
+
+/**
+ * lws_cgi_write_split_stdout_headers: write cgi output accounting for header part
+ *
+ * \param wsi: connection to own the process
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_cgi_write_split_stdout_headers(struct lws *wsi);
+
+/**
+ * lws_cgi_kill: terminate cgi process associated with wsi
+ *
+ * \param wsi: connection to own the process
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_cgi_kill(struct lws *wsi);
+
+/**
+ * lws_cgi_get_stdwsi: get wsi for stdin, stdout, or stderr
+ *
+ * \param wsi: parent wsi that has cgi
+ * \param ch: which of LWS_STDIN, LWS_STDOUT or LWS_STDERR
+ */
+LWS_VISIBLE LWS_EXTERN struct lws *
+lws_cgi_get_stdwsi(struct lws *wsi, enum lws_enum_stdinouterr ch);
+
+#endif
+///@}
+
+
+/*! \defgroup fops file operation wrapping
+ *
+ * ##File operation wrapping
+ *
+ * Use these helper functions if you want to access a file from the perspective
+ * of a specific wsi, which is usually the case.  If you just want contextless
+ * file access, use the fops callbacks directly with NULL wsi instead of these
+ * helpers.
+ *
+ * If so, then it calls the platform handler or user overrides where present
+ * (as defined in info->fops)
+ *
+ * The advantage from all this is user code can be portable for file operations
+ * without having to deal with differences between platforms.
+ */
+//@{
+
+/** struct lws_plat_file_ops - Platform-specific file operations
+ *
+ * These provide platform-agnostic ways to deal with filesystem access in the
+ * library and in the user code.
+ */
+
+#if defined(LWS_WITH_ESP32)
+/* sdk preprocessor defs? compiler issue? gets confused with member names */
+#define LWS_FOP_OPEN		_open
+#define LWS_FOP_CLOSE		_close
+#define LWS_FOP_SEEK_CUR	_seek_cur
+#define LWS_FOP_READ		_read
+#define LWS_FOP_WRITE		_write
+#else
+#define LWS_FOP_OPEN		open
+#define LWS_FOP_CLOSE		close
+#define LWS_FOP_SEEK_CUR	seek_cur
+#define LWS_FOP_READ		read
+#define LWS_FOP_WRITE		write
+#endif
+
+#define LWS_FOP_FLAGS_MASK		   ((1 << 23) - 1)
+#define LWS_FOP_FLAG_COMPR_ACCEPTABLE_GZIP (1 << 24)
+#define LWS_FOP_FLAG_COMPR_IS_GZIP	   (1 << 25)
+#define LWS_FOP_FLAG_MOD_TIME_VALID	   (1 << 26)
+#define LWS_FOP_FLAG_VIRTUAL		   (1 << 27)
+
+struct lws_plat_file_ops;
+
+struct lws_fop_fd {
+	lws_filefd_type			fd;
+	/**< real file descriptor related to the file... */
+	const struct lws_plat_file_ops	*fops;
+	/**< fops that apply to this fop_fd */
+	void				*filesystem_priv;
+	/**< ignored by lws; owned by the fops handlers */
+	lws_filepos_t			pos;
+	/**< generic "position in file" */
+	lws_filepos_t			len;
+	/**< generic "length of file" */
+	lws_fop_flags_t			flags;
+	/**< copy of the returned flags */
+	uint32_t			mod_time;
+	/**< optional "modification time of file", only valid if .open()
+	 * set the LWS_FOP_FLAG_MOD_TIME_VALID flag */
+};
+typedef struct lws_fop_fd *lws_fop_fd_t;
+
+struct lws_fops_index {
+	const char *sig;	/* NULL or vfs signature, eg, ".zip/" */
+	uint8_t len;		/* length of above string */
+};
+
+struct lws_plat_file_ops {
+	lws_fop_fd_t (*LWS_FOP_OPEN)(const struct lws_plat_file_ops *fops,
+				     const char *filename, const char *vpath,
+				     lws_fop_flags_t *flags);
+	/**< Open file (always binary access if plat supports it)
+	 * vpath may be NULL, or if the fops understands it, the point at which
+	 * the filename's virtual part starts.
+	 * *flags & LWS_FOP_FLAGS_MASK should be set to O_RDONLY or O_RDWR.
+	 * If the file may be gzip-compressed,
+	 * LWS_FOP_FLAG_COMPR_ACCEPTABLE_GZIP is set.  If it actually is
+	 * gzip-compressed, then the open handler should OR
+	 * LWS_FOP_FLAG_COMPR_IS_GZIP on to *flags before returning.
+	 */
+	int (*LWS_FOP_CLOSE)(lws_fop_fd_t *fop_fd);
+	/**< close file AND set the pointer to NULL */
+	lws_fileofs_t (*LWS_FOP_SEEK_CUR)(lws_fop_fd_t fop_fd,
+					  lws_fileofs_t offset_from_cur_pos);
+	/**< seek from current position */
+	int (*LWS_FOP_READ)(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+			    uint8_t *buf, lws_filepos_t len);
+	/**< Read from file, on exit *amount is set to amount actually read */
+	int (*LWS_FOP_WRITE)(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+			     uint8_t *buf, lws_filepos_t len);
+	/**< Write to file, on exit *amount is set to amount actually written */
+
+	struct lws_fops_index fi[3];
+	/**< vfs path signatures implying use of this fops */
+
+	const struct lws_plat_file_ops *next;
+	/**< NULL or next fops in list */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility */
+};
+
+/**
+ * lws_get_fops() - get current file ops
+ *
+ * \param context: context
+ */
+LWS_VISIBLE LWS_EXTERN struct lws_plat_file_ops * LWS_WARN_UNUSED_RESULT
+lws_get_fops(struct lws_context *context);
+LWS_VISIBLE LWS_EXTERN void
+lws_set_fops(struct lws_context *context, const struct lws_plat_file_ops *fops);
+/**
+ * lws_vfs_tell() - get current file position
+ *
+ * \param fop_fd: fop_fd we are asking about
+ */
+LWS_VISIBLE LWS_EXTERN lws_filepos_t LWS_WARN_UNUSED_RESULT
+lws_vfs_tell(lws_fop_fd_t fop_fd);
+/**
+ * lws_vfs_get_length() - get current file total length in bytes
+ *
+ * \param fop_fd: fop_fd we are asking about
+ */
+LWS_VISIBLE LWS_EXTERN lws_filepos_t LWS_WARN_UNUSED_RESULT
+lws_vfs_get_length(lws_fop_fd_t fop_fd);
+/**
+ * lws_vfs_get_mod_time() - get time file last modified
+ *
+ * \param fop_fd: fop_fd we are asking about
+ */
+LWS_VISIBLE LWS_EXTERN uint32_t LWS_WARN_UNUSED_RESULT
+lws_vfs_get_mod_time(lws_fop_fd_t fop_fd);
+/**
+ * lws_vfs_file_seek_set() - seek relative to start of file
+ *
+ * \param fop_fd: fop_fd we are seeking in
+ * \param offset: offset from start of file
+ */
+LWS_VISIBLE LWS_EXTERN lws_fileofs_t
+lws_vfs_file_seek_set(lws_fop_fd_t fop_fd, lws_fileofs_t offset);
+/**
+ * lws_vfs_file_seek_end() - seek relative to end of file
+ *
+ * \param fop_fd: fop_fd we are seeking in
+ * \param offset: offset from start of file
+ */
+LWS_VISIBLE LWS_EXTERN lws_fileofs_t
+lws_vfs_file_seek_end(lws_fop_fd_t fop_fd, lws_fileofs_t offset);
+
+extern struct lws_plat_file_ops fops_zip;
+
+/**
+ * lws_plat_file_open() - open vfs filepath
+ *
+ * \param fops: file ops struct that applies to this descriptor
+ * \param vfs_path: filename to open
+ * \param flags: pointer to open flags
+ *
+ * The vfs_path is scanned for known fops signatures, and the open directed
+ * to any matching fops open.
+ *
+ * User code should use this api to perform vfs opens.
+ *
+ * returns semi-opaque handle
+ */
+LWS_VISIBLE LWS_EXTERN lws_fop_fd_t LWS_WARN_UNUSED_RESULT
+lws_vfs_file_open(const struct lws_plat_file_ops *fops, const char *vfs_path,
+		  lws_fop_flags_t *flags);
+
+/**
+ * lws_plat_file_close() - close file
+ *
+ * \param fop_fd: file handle to close
+ */
+static LWS_INLINE int
+lws_vfs_file_close(lws_fop_fd_t *fop_fd)
+{
+	return (*fop_fd)->fops->LWS_FOP_CLOSE(fop_fd);
+}
+
+/**
+ * lws_plat_file_seek_cur() - close file
+ *
+ *
+ * \param fop_fd: file handle
+ * \param offset: position to seek to
+ */
+static LWS_INLINE lws_fileofs_t
+lws_vfs_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
+{
+	return fop_fd->fops->LWS_FOP_SEEK_CUR(fop_fd, offset);
+}
+/**
+ * lws_plat_file_read() - read from file
+ *
+ * \param fop_fd: file handle
+ * \param amount: how much to read (rewritten by call)
+ * \param buf: buffer to write to
+ * \param len: max length
+ */
+static LWS_INLINE int LWS_WARN_UNUSED_RESULT
+lws_vfs_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		   uint8_t *buf, lws_filepos_t len)
+{
+	return fop_fd->fops->LWS_FOP_READ(fop_fd, amount, buf, len);
+}
+/**
+ * lws_plat_file_write() - write from file
+ *
+ * \param fop_fd: file handle
+ * \param amount: how much to write (rewritten by call)
+ * \param buf: buffer to read from
+ * \param len: max length
+ */
+static LWS_INLINE int LWS_WARN_UNUSED_RESULT
+lws_vfs_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		    uint8_t *buf, lws_filepos_t len)
+{
+	return fop_fd->fops->LWS_FOP_WRITE(fop_fd, amount, buf, len);
+}
+
+/* these are the platform file operations implementations... they can
+ * be called directly and used in fops arrays
+ */
+
+LWS_VISIBLE LWS_EXTERN lws_fop_fd_t
+_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+		    const char *vpath, lws_fop_flags_t *flags);
+LWS_VISIBLE LWS_EXTERN int
+_lws_plat_file_close(lws_fop_fd_t *fop_fd);
+LWS_VISIBLE LWS_EXTERN lws_fileofs_t
+_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset);
+LWS_VISIBLE LWS_EXTERN int
+_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		    uint8_t *buf, lws_filepos_t len);
+LWS_VISIBLE LWS_EXTERN int
+_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		     uint8_t *buf, lws_filepos_t len);
+
+LWS_VISIBLE LWS_EXTERN int
+lws_alloc_vfs_file(struct lws_context *context, const char *filename,
+		   uint8_t **buf, lws_filepos_t *amount);
+//@}
+
+/** \defgroup smtp SMTP related functions
+ * ##SMTP related functions
+ * \ingroup lwsapi
+ *
+ * These apis let you communicate with a local SMTP server to send email from
+ * lws.  It handles all the SMTP sequencing and protocol actions.
+ *
+ * Your system should have postfix, sendmail or another MTA listening on port
+ * 25 and able to send email using the "mail" commandline app.  Usually distro
+ * MTAs are configured for this by default.
+ *
+ * It runs via its own libuv events if initialized (which requires giving it
+ * a libuv loop to attach to).
+ *
+ * It operates using three callbacks, on_next() queries if there is a new email
+ * to send, on_get_body() asks for the body of the email, and on_sent() is
+ * called after the email is successfully sent.
+ *
+ * To use it
+ *
+ *  - create an lws_email struct
+ *
+ *  - initialize data, loop, the email_* strings, max_content_size and
+ *    the callbacks
+ *
+ *  - call lws_email_init()
+ *
+ *  When you have at least one email to send, call lws_email_check() to
+ *  schedule starting to send it.
+ */
+//@{
+#ifdef LWS_WITH_SMTP
+
+/** enum lwsgs_smtp_states - where we are in SMTP protocol sequence */
+enum lwsgs_smtp_states {
+	LGSSMTP_IDLE, /**< awaiting new email */
+	LGSSMTP_CONNECTING, /**< opening tcp connection to MTA */
+	LGSSMTP_CONNECTED, /**< tcp connection to MTA is connected */
+	LGSSMTP_SENT_HELO, /**< sent the HELO */
+	LGSSMTP_SENT_FROM, /**< sent FROM */
+	LGSSMTP_SENT_TO, /**< sent TO */
+	LGSSMTP_SENT_DATA, /**< sent DATA request */
+	LGSSMTP_SENT_BODY, /**< sent the email body */
+	LGSSMTP_SENT_QUIT, /**< sent the session quit */
+};
+
+/** struct lws_email - abstract context for performing SMTP operations */
+struct lws_email {
+	void *data;
+	/**< opaque pointer set by user code and available to the callbacks */
+	uv_loop_t *loop;
+	/**< the libuv loop we will work on */
+
+	char email_smtp_ip[32]; /**< Fill before init, eg, "127.0.0.1" */
+	char email_helo[32];	/**< Fill before init, eg, "myserver.com" */
+	char email_from[100];	/**< Fill before init or on_next */
+	char email_to[100];	/**< Fill before init or on_next */
+
+	unsigned int max_content_size;
+	/**< largest possible email body size */
+
+	/* Fill all the callbacks before init */
+
+	int (*on_next)(struct lws_email *email);
+	/**< (Fill in before calling lws_email_init)
+	 * called when idle, 0 = another email to send, nonzero is idle.
+	 * If you return 0, all of the email_* char arrays must be set
+	 * to something useful. */
+	int (*on_sent)(struct lws_email *email);
+	/**< (Fill in before calling lws_email_init)
+	 * called when transfer of the email to the SMTP server was
+	 * successful, your callback would remove the current email
+	 * from its queue */
+	int (*on_get_body)(struct lws_email *email, char *buf, int len);
+	/**< (Fill in before calling lws_email_init)
+	 * called when the body part of the queued email is about to be
+	 * sent to the SMTP server. */
+
+
+	/* private things */
+	uv_timer_t timeout_email; /**< private */
+	enum lwsgs_smtp_states estate; /**< private */
+	uv_connect_t email_connect_req; /**< private */
+	uv_tcp_t email_client; /**< private */
+	time_t email_connect_started; /**< private */
+	char email_buf[256]; /**< private */
+	char *content; /**< private */
+};
+
+/**
+ * lws_email_init() - Initialize a struct lws_email
+ *
+ * \param email: struct lws_email to init
+ * \param loop: libuv loop to use
+ * \param max_content: max email content size
+ *
+ * Prepares a struct lws_email for use ending SMTP
+ */
+LWS_VISIBLE LWS_EXTERN int
+lws_email_init(struct lws_email *email, uv_loop_t *loop, int max_content);
+
+/**
+ * lws_email_check() - Request check for new email
+ *
+ * \param email: struct lws_email context to check
+ *
+ * Schedules a check for new emails in 1s... call this when you have queued an
+ * email for send.
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_email_check(struct lws_email *email);
+/**
+ * lws_email_destroy() - stop using the struct lws_email
+ *
+ * \param email: the struct lws_email context
+ *
+ * Stop sending email using email and free allocations
+ */
+LWS_VISIBLE LWS_EXTERN void
+lws_email_destroy(struct lws_email *email);
+
+#endif
+//@}
+
+
+/** \defgroup lejp JSON parser
+ * ##JSON parsing related functions
+ * \ingroup lwsapi
+ *
+ * LEJP is an extremely lightweight JSON stream parser included in lws.
+ */
+//@{
+struct lejp_ctx;
+
+#define LWS_ARRAY_SIZE(_x) (sizeof(_x) / sizeof(_x[0]))
+#define LEJP_FLAG_WS_KEEP 64
+#define LEJP_FLAG_WS_COMMENTLINE 32
+
+enum lejp_states {
+	LEJP_IDLE = 0,
+	LEJP_MEMBERS = 1,
+	LEJP_M_P = 2,
+	LEJP_MP_STRING = LEJP_FLAG_WS_KEEP | 3,
+	LEJP_MP_STRING_ESC = LEJP_FLAG_WS_KEEP | 4,
+	LEJP_MP_STRING_ESC_U1 = LEJP_FLAG_WS_KEEP | 5,
+	LEJP_MP_STRING_ESC_U2 = LEJP_FLAG_WS_KEEP | 6,
+	LEJP_MP_STRING_ESC_U3 = LEJP_FLAG_WS_KEEP | 7,
+	LEJP_MP_STRING_ESC_U4 = LEJP_FLAG_WS_KEEP | 8,
+	LEJP_MP_DELIM = 9,
+	LEJP_MP_VALUE = 10,
+	LEJP_MP_VALUE_NUM_INT = LEJP_FLAG_WS_KEEP | 11,
+	LEJP_MP_VALUE_NUM_EXP = LEJP_FLAG_WS_KEEP | 12,
+	LEJP_MP_VALUE_TOK = LEJP_FLAG_WS_KEEP | 13,
+	LEJP_MP_COMMA_OR_END = 14,
+	LEJP_MP_ARRAY_END = 15,
+};
+
+enum lejp_reasons {
+	LEJP_CONTINUE = -1,
+	LEJP_REJECT_IDLE_NO_BRACE = -2,
+	LEJP_REJECT_MEMBERS_NO_CLOSE = -3,
+	LEJP_REJECT_MP_NO_OPEN_QUOTE = -4,
+	LEJP_REJECT_MP_STRING_UNDERRUN = -5,
+	LEJP_REJECT_MP_ILLEGAL_CTRL = -6,
+	LEJP_REJECT_MP_STRING_ESC_ILLEGAL_ESC = -7,
+	LEJP_REJECT_ILLEGAL_HEX = -8,
+	LEJP_REJECT_MP_DELIM_MISSING_COLON = -9,
+	LEJP_REJECT_MP_DELIM_BAD_VALUE_START = -10,
+	LEJP_REJECT_MP_VAL_NUM_INT_NO_FRAC = -11,
+	LEJP_REJECT_MP_VAL_NUM_FORMAT = -12,
+	LEJP_REJECT_MP_VAL_NUM_EXP_BAD_EXP = -13,
+	LEJP_REJECT_MP_VAL_TOK_UNKNOWN = -14,
+	LEJP_REJECT_MP_C_OR_E_UNDERF = -15,
+	LEJP_REJECT_MP_C_OR_E_NOTARRAY = -16,
+	LEJP_REJECT_MP_ARRAY_END_MISSING = -17,
+	LEJP_REJECT_STACK_OVERFLOW = -18,
+	LEJP_REJECT_MP_DELIM_ISTACK = -19,
+	LEJP_REJECT_NUM_TOO_LONG = -20,
+	LEJP_REJECT_MP_C_OR_E_NEITHER = -21,
+	LEJP_REJECT_UNKNOWN = -22,
+	LEJP_REJECT_CALLBACK = -23
+};
+
+#define LEJP_FLAG_CB_IS_VALUE 64
+
+enum lejp_callbacks {
+	LEJPCB_CONSTRUCTED	= 0,
+	LEJPCB_DESTRUCTED	= 1,
+
+	LEJPCB_START		= 2,
+	LEJPCB_COMPLETE		= 3,
+	LEJPCB_FAILED		= 4,
+
+	LEJPCB_PAIR_NAME	= 5,
+
+	LEJPCB_VAL_TRUE		= LEJP_FLAG_CB_IS_VALUE | 6,
+	LEJPCB_VAL_FALSE	= LEJP_FLAG_CB_IS_VALUE | 7,
+	LEJPCB_VAL_NULL		= LEJP_FLAG_CB_IS_VALUE | 8,
+	LEJPCB_VAL_NUM_INT	= LEJP_FLAG_CB_IS_VALUE | 9,
+	LEJPCB_VAL_NUM_FLOAT	= LEJP_FLAG_CB_IS_VALUE | 10,
+	LEJPCB_VAL_STR_START	= 11, /* notice handle separately */
+	LEJPCB_VAL_STR_CHUNK	= LEJP_FLAG_CB_IS_VALUE | 12,
+	LEJPCB_VAL_STR_END	= LEJP_FLAG_CB_IS_VALUE | 13,
+
+	LEJPCB_ARRAY_START	= 14,
+	LEJPCB_ARRAY_END	= 15,
+
+	LEJPCB_OBJECT_START	= 16,
+	LEJPCB_OBJECT_END	= 17
+};
+
+/**
+ * _lejp_callback() - User parser actions
+ * \param ctx:	LEJP context
+ * \param reason:	Callback reason
+ *
+ *	Your user callback is associated with the context at construction time,
+ *	and receives calls as the parsing progresses.
+ *
+ *	All of the callbacks may be ignored and just return 0.
+ *
+ *	The reasons it might get called, found in @reason, are:
+ *
+ *  LEJPCB_CONSTRUCTED:  The context was just constructed... you might want to
+ *		perform one-time allocation for the life of the context.
+ *
+ *  LEJPCB_DESTRUCTED:	The context is being destructed... if you made any
+ *		allocations at construction-time, you can free them now
+ *
+ *  LEJPCB_START:	Parsing is beginning at the first byte of input
+ *
+ *  LEJPCB_COMPLETE:	Parsing has completed successfully.  You'll get a 0 or
+ *			positive return code from lejp_parse indicating the
+ *			amount of unused bytes left in the input buffer
+ *
+ *  LEJPCB_FAILED:	Parsing failed.  You'll get a negative error code
+ *  			returned from lejp_parse
+ *
+ *  LEJPCB_PAIR_NAME:	When a "name":"value" pair has had the name parsed,
+ *			this callback occurs.  You can find the new name at
+ *			the end of ctx->path[]
+ *
+ *  LEJPCB_VAL_TRUE:	The "true" value appeared
+ *
+ *  LEJPCB_VAL_FALSE:	The "false" value appeared
+ *
+ *  LEJPCB_VAL_NULL:	The "null" value appeared
+ *
+ *  LEJPCB_VAL_NUM_INT:	A string representing an integer is in ctx->buf
+ *
+ *  LEJPCB_VAL_NUM_FLOAT: A string representing a float is in ctx->buf
+ *
+ *  LEJPCB_VAL_STR_START: We are starting to parse a string, no data yet
+ *
+ *  LEJPCB_VAL_STR_CHUNK: We parsed LEJP_STRING_CHUNK -1 bytes of string data in
+ *			ctx->buf, which is as much as we can buffer, so we are
+ *			spilling it.  If all your strings are less than
+ *			LEJP_STRING_CHUNK - 1 bytes, you will never see this
+ *			callback.
+ *
+ *  LEJPCB_VAL_STR_END:	String parsing has completed, the last chunk of the
+ *			string is in ctx->buf.
+ *
+ *  LEJPCB_ARRAY_START:	An array started
+ *
+ *  LEJPCB_ARRAY_END:	An array ended
+ *
+ *  LEJPCB_OBJECT_START: An object started
+ *
+ *  LEJPCB_OBJECT_END:	An object ended
+ */
+LWS_EXTERN signed char _lejp_callback(struct lejp_ctx *ctx, char reason);
+
+typedef signed char (*lejp_callback)(struct lejp_ctx *ctx, char reason);
+
+#ifndef LEJP_MAX_DEPTH
+#define LEJP_MAX_DEPTH 12
+#endif
+#ifndef LEJP_MAX_INDEX_DEPTH
+#define LEJP_MAX_INDEX_DEPTH 5
+#endif
+#ifndef LEJP_MAX_PATH
+#define LEJP_MAX_PATH 128
+#endif
+#ifndef LEJP_STRING_CHUNK
+/* must be >= 30 to assemble floats */
+#define LEJP_STRING_CHUNK 254
+#endif
+
+enum num_flags {
+	LEJP_SEEN_MINUS = (1 << 0),
+	LEJP_SEEN_POINT = (1 << 1),
+	LEJP_SEEN_POST_POINT = (1 << 2),
+	LEJP_SEEN_EXP = (1 << 3)
+};
+
+struct _lejp_stack {
+	char s; /* lejp_state stack*/
+	char p;	/* path length */
+	char i; /* index array length */
+	char b; /* user bitfield */
+};
+
+struct lejp_ctx {
+
+	/* sorted by type for most compact alignment
+	 *
+	 * pointers
+	 */
+
+	signed char (*callback)(struct lejp_ctx *ctx, char reason);
+	void *user;
+	const char * const *paths;
+
+	/* arrays */
+
+	struct _lejp_stack st[LEJP_MAX_DEPTH];
+	uint16_t i[LEJP_MAX_INDEX_DEPTH]; /* index array */
+	uint16_t wild[LEJP_MAX_INDEX_DEPTH]; /* index array */
+	char path[LEJP_MAX_PATH];
+	char buf[LEJP_STRING_CHUNK + 1];
+
+	/* int */
+
+	uint32_t line;
+
+	/* short */
+
+	uint16_t uni;
+
+	/* char */
+
+	uint8_t npos;
+	uint8_t dcount;
+	uint8_t f;
+	uint8_t sp; /* stack head */
+	uint8_t ipos; /* index stack depth */
+	uint8_t ppos;
+	uint8_t count_paths;
+	uint8_t path_match;
+	uint8_t path_match_len;
+	uint8_t wildcount;
+};
+
+LWS_VISIBLE LWS_EXTERN void
+lejp_construct(struct lejp_ctx *ctx,
+	       signed char (*callback)(struct lejp_ctx *ctx, char reason),
+	       void *user, const char * const *paths, unsigned char paths_count);
+
+LWS_VISIBLE LWS_EXTERN void
+lejp_destruct(struct lejp_ctx *ctx);
+
+LWS_VISIBLE LWS_EXTERN int
+lejp_parse(struct lejp_ctx *ctx, const unsigned char *json, int len);
+
+LWS_VISIBLE LWS_EXTERN void
+lejp_change_callback(struct lejp_ctx *ctx,
+		     signed char (*callback)(struct lejp_ctx *ctx, char reason));
+
+LWS_VISIBLE LWS_EXTERN int
+lejp_get_wildcard(struct lejp_ctx *ctx, int wildcard, char *dest, int len);
+//@}
+
+/*
+ * Stats are all uint64_t numbers that start at 0.
+ * Index names here have the convention
+ *
+ *  _C_ counter
+ *  _B_ byte count
+ *  _MS_ millisecond count
+ */
+
+enum {
+	LWSSTATS_C_CONNECTIONS, /**< count incoming connections */
+	LWSSTATS_C_API_CLOSE, /**< count calls to close api */
+	LWSSTATS_C_API_READ, /**< count calls to read from socket api */
+	LWSSTATS_C_API_LWS_WRITE, /**< count calls to lws_write API */
+	LWSSTATS_C_API_WRITE, /**< count calls to write API */
+	LWSSTATS_C_WRITE_PARTIALS, /**< count of partial writes */
+	LWSSTATS_C_WRITEABLE_CB_REQ, /**< count of writable callback requests */
+	LWSSTATS_C_WRITEABLE_CB_EFF_REQ, /**< count of effective writable callback requests */
+	LWSSTATS_C_WRITEABLE_CB, /**< count of writable callbacks */
+	LWSSTATS_C_SSL_CONNECTIONS_FAILED, /**< count of failed SSL connections */
+	LWSSTATS_C_SSL_CONNECTIONS_ACCEPTED, /**< count of accepted SSL connections */
+	LWSSTATS_C_SSL_CONNECTIONS_ACCEPT_SPIN, /**< count of SSL_accept() attempts */
+	LWSSTATS_C_SSL_CONNS_HAD_RX, /**< count of accepted SSL conns that have had some RX */
+	LWSSTATS_C_TIMEOUTS, /**< count of timed-out connections */
+	LWSSTATS_C_SERVICE_ENTRY, /**< count of entries to lws service loop */
+	LWSSTATS_B_READ, /**< aggregate bytes read */
+	LWSSTATS_B_WRITE, /**< aggregate bytes written */
+	LWSSTATS_B_PARTIALS_ACCEPTED_PARTS, /**< aggreate of size of accepted write data from new partials */
+	LWSSTATS_MS_SSL_CONNECTIONS_ACCEPTED_DELAY, /**< aggregate delay in accepting connection */
+	LWSSTATS_MS_WRITABLE_DELAY, /**< aggregate delay between asking for writable and getting cb */
+	LWSSTATS_MS_WORST_WRITABLE_DELAY, /**< single worst delay between asking for writable and getting cb */
+	LWSSTATS_MS_SSL_RX_DELAY, /**< aggregate delay between ssl accept complete and first RX */
+	LWSSTATS_C_PEER_LIMIT_AH_DENIED, /**< number of times we would have given an ah but for the peer limit */
+	LWSSTATS_C_PEER_LIMIT_WSI_DENIED, /**< number of times we would have given a wsi but for the peer limit */
+
+	/* Add new things just above here ---^
+	 * This is part of the ABI, don't needlessly break compatibility */
+	LWSSTATS_SIZE
+};
+
+#if defined(LWS_WITH_STATS)
+
+LWS_VISIBLE LWS_EXTERN uint64_t
+lws_stats_get(struct lws_context *context, int index);
+LWS_VISIBLE LWS_EXTERN void
+lws_stats_log_dump(struct lws_context *context);
+#else
+static LWS_INLINE uint64_t
+lws_stats_get(struct lws_context *context, int index) { (void)context; (void)index;  return 0; }
+static LWS_INLINE void
+lws_stats_log_dump(struct lws_context *context) { (void)context; }
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/thirdparty/libwebsockets/include/lws_config.h b/thirdparty/libwebsockets/lws_config.h
index fdf02157cc..fdf02157cc 100644
--- a/thirdparty/libwebsockets/include/lws_config.h
+++ b/thirdparty/libwebsockets/lws_config.h
diff --git a/thirdparty/libwebsockets/lib/lws_config_private.h b/thirdparty/libwebsockets/lws_config_private.h
index e531777624..e531777624 100644
--- a/thirdparty/libwebsockets/lib/lws_config_private.h
+++ b/thirdparty/libwebsockets/lws_config_private.h
diff --git a/thirdparty/libwebsockets/lib/misc/base64-decode.c b/thirdparty/libwebsockets/misc/base64-decode.c
index de2efc8fd1..64b84d78fa 100644
--- a/thirdparty/libwebsockets/lib/misc/base64-decode.c
+++ b/thirdparty/libwebsockets/misc/base64-decode.c
@@ -55,11 +55,12 @@ _lws_b64_encode_string(const char *encode, const char *in, int in_len,
 {
 	unsigned char triple[3];
 	int i;
+	int len;
 	int line = 0;
 	int done = 0;
 
 	while (in_len) {
-		int len = 0;
+		len = 0;
 		for (i = 0; i < 3; i++) {
 			if (in_len) {
 				triple[i] = *in++;
diff --git a/thirdparty/libwebsockets/lib/misc/getifaddrs.c b/thirdparty/libwebsockets/misc/getifaddrs.c
index 735b899f48..735b899f48 100644
--- a/thirdparty/libwebsockets/lib/misc/getifaddrs.c
+++ b/thirdparty/libwebsockets/misc/getifaddrs.c
diff --git a/thirdparty/libwebsockets/lib/misc/getifaddrs.h b/thirdparty/libwebsockets/misc/getifaddrs.h
index d26670c082..d26670c082 100644
--- a/thirdparty/libwebsockets/lib/misc/getifaddrs.h
+++ b/thirdparty/libwebsockets/misc/getifaddrs.h
diff --git a/thirdparty/libwebsockets/lib/misc/lejp.c b/thirdparty/libwebsockets/misc/lejp.c
index 599a6d37ba..99142b9553 100644
--- a/thirdparty/libwebsockets/lib/misc/lejp.c
+++ b/thirdparty/libwebsockets/misc/lejp.c
@@ -126,7 +126,7 @@ lejp_check_path_match(struct lejp_ctx *ctx)
 				q++;
 				continue;
 			}
-			ctx->wild[ctx->wildcount++] = lws_ptr_diff(p, ctx->path);
+			ctx->wild[ctx->wildcount++] = p - ctx->path;
 			q++;
 			/*
 			 * if * has something after it, match to .
diff --git a/thirdparty/libwebsockets/lib/misc/sha-1.c b/thirdparty/libwebsockets/misc/sha-1.c
index 898f3f45b1..2e4db52693 100644
--- a/thirdparty/libwebsockets/lib/misc/sha-1.c
+++ b/thirdparty/libwebsockets/misc/sha-1.c
@@ -236,14 +236,18 @@ sha1_pad(struct sha1_ctxt *ctxt)
 void
 sha1_loop(struct sha1_ctxt *ctxt, const unsigned char *input, size_t len)
 {
+	size_t gaplen;
+	size_t gapstart;
 	size_t off;
+	size_t copysiz;
 
 	off = 0;
 
 	while (off < len) {
-		size_t gapstart = COUNT % 64, gaplen = 64 - gapstart,
-		       copysiz = (gaplen < len - off) ? gaplen : len - off;
+		gapstart = COUNT % 64;
+		gaplen = 64 - gapstart;
 
+		copysiz = (gaplen < len - off) ? gaplen : len - off;
 		memcpy(&ctxt->m.b8[gapstart], &input[off], copysiz);
 		COUNT += (unsigned char)copysiz;
 		COUNT %= 64;
diff --git a/thirdparty/libwebsockets/plat/lws-plat-unix.c b/thirdparty/libwebsockets/plat/lws-plat-unix.c
new file mode 100644
index 0000000000..d1bca8b5df
--- /dev/null
+++ b/thirdparty/libwebsockets/plat/lws-plat-unix.c
@@ -0,0 +1,982 @@
+/*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation:
+ *  version 2.1 of the License.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301  USA
+ */
+
+#define _GNU_SOURCE
+#include "core/private.h"
+
+#include <pwd.h>
+#include <grp.h>
+
+#ifdef LWS_WITH_PLUGINS
+#include <dlfcn.h>
+#endif
+#include <dirent.h>
+
+void lws_plat_apply_FD_CLOEXEC(int n)
+{
+	if (n != -1)
+		fcntl(n, F_SETFD, FD_CLOEXEC );
+}
+
+int
+lws_plat_socket_offset(void)
+{
+	return 0;
+}
+
+int
+lws_plat_pipe_create(struct lws *wsi)
+{
+	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
+
+#if defined(LWS_HAVE_PIPE2)
+	return pipe2(pt->dummy_pipe_fds, O_NONBLOCK);
+#else
+	return pipe(pt->dummy_pipe_fds);
+#endif
+}
+
+int
+lws_plat_pipe_signal(struct lws *wsi)
+{
+	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
+	char buf = 0;
+	int n;
+
+	n = write(pt->dummy_pipe_fds[1], &buf, 1);
+
+	return n != 1;
+}
+
+void
+lws_plat_pipe_close(struct lws *wsi)
+{
+	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
+
+	if (pt->dummy_pipe_fds[0] && pt->dummy_pipe_fds[0] != -1)
+		close(pt->dummy_pipe_fds[0]);
+	if (pt->dummy_pipe_fds[1] && pt->dummy_pipe_fds[1] != -1)
+		close(pt->dummy_pipe_fds[1]);
+
+	pt->dummy_pipe_fds[0] = pt->dummy_pipe_fds[1] = -1;
+}
+
+#ifdef __QNX__
+# include "netinet/tcp_var.h"
+# define TCP_KEEPINTVL TCPCTL_KEEPINTVL
+# define TCP_KEEPIDLE  TCPCTL_KEEPIDLE
+# define TCP_KEEPCNT   TCPCTL_KEEPCNT
+#endif
+
+unsigned long long time_in_microseconds(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return ((unsigned long long)tv.tv_sec * 1000000LL) + tv.tv_usec;
+}
+
+LWS_VISIBLE int
+lws_get_random(struct lws_context *context, void *buf, int len)
+{
+	return read(context->fd_random, (char *)buf, len);
+}
+
+LWS_VISIBLE int
+lws_send_pipe_choked(struct lws *wsi)
+{
+	struct lws_pollfd fds;
+	struct lws *wsi_eff = wsi;
+
+#if defined(LWS_WITH_HTTP2)
+	wsi_eff = lws_get_network_wsi(wsi);
+#endif
+
+	/* the fact we checked implies we avoided back-to-back writes */
+	wsi_eff->could_have_pending = 0;
+
+	/* treat the fact we got a truncated send pending as if we're choked */
+	if (wsi_eff->trunc_len)
+		return 1;
+
+	fds.fd = wsi_eff->desc.sockfd;
+	fds.events = POLLOUT;
+	fds.revents = 0;
+
+	if (poll(&fds, 1, 0) != 1)
+		return 1;
+
+	if ((fds.revents & POLLOUT) == 0)
+		return 1;
+
+	/* okay to send another packet without blocking */
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_poll_listen_fd(struct lws_pollfd *fd)
+{
+	return poll(fd, 1, 0);
+}
+
+LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line)
+{
+	int syslog_level = LOG_DEBUG;
+
+	switch (level) {
+	case LLL_ERR:
+		syslog_level = LOG_ERR;
+		break;
+	case LLL_WARN:
+		syslog_level = LOG_WARNING;
+		break;
+	case LLL_NOTICE:
+		syslog_level = LOG_NOTICE;
+		break;
+	case LLL_INFO:
+		syslog_level = LOG_INFO;
+		break;
+	}
+	syslog(syslog_level, "%s", line);
+}
+
+LWS_VISIBLE LWS_EXTERN int
+_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
+{
+	volatile struct lws_foreign_thread_pollfd *ftp, *next;
+	volatile struct lws_context_per_thread *vpt;
+	struct lws_context_per_thread *pt;
+	int n = -1, m, c;
+
+	/* stay dead once we are dead */
+
+	if (!context || !context->vhost_list)
+		return 1;
+
+	pt = &context->pt[tsi];
+	vpt = (volatile struct lws_context_per_thread *)pt;
+
+	lws_stats_atomic_bump(context, pt, LWSSTATS_C_SERVICE_ENTRY, 1);
+
+	if (timeout_ms < 0)
+		goto faked_service;
+
+	if (context->event_loop_ops->run_pt)
+		context->event_loop_ops->run_pt(context, tsi);
+
+	if (!context->service_tid_detected) {
+		struct lws _lws;
+
+		memset(&_lws, 0, sizeof(_lws));
+		_lws.context = context;
+
+		context->service_tid_detected =
+			context->vhost_list->protocols[0].callback(
+			&_lws, LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
+		context->service_tid = context->service_tid_detected;
+		context->service_tid_detected = 1;
+	}
+
+	/*
+	 * is there anybody with pending stuff that needs service forcing?
+	 */
+	if (!lws_service_adjust_timeout(context, 1, tsi)) {
+		/* -1 timeout means just do forced service */
+		_lws_plat_service_tsi(context, -1, pt->tid);
+		/* still somebody left who wants forced service? */
+		if (!lws_service_adjust_timeout(context, 1, pt->tid))
+			/* yes... come back again quickly */
+			timeout_ms = 0;
+	}
+
+	if (timeout_ms) {
+		lws_pt_lock(pt, __func__);
+		/* don't stay in poll wait longer than next hr timeout */
+		lws_usec_t t =  __lws_hrtimer_service(pt);
+		if ((lws_usec_t)timeout_ms * 1000 > t)
+			timeout_ms = t / 1000;
+		lws_pt_unlock(pt);
+	}
+
+	vpt->inside_poll = 1;
+	lws_memory_barrier();
+	n = poll(pt->fds, pt->fds_count, timeout_ms);
+	vpt->inside_poll = 0;
+	lws_memory_barrier();
+
+	/* Collision will be rare and brief.  Just spin until it completes */
+	while (vpt->foreign_spinlock)
+		;
+
+	/*
+	 * At this point we are not inside a foreign thread pollfd change,
+	 * and we have marked ourselves as outside the poll() wait.  So we
+	 * are the only guys that can modify the lws_foreign_thread_pollfd
+	 * list on the pt.  Drain the list and apply the changes to the
+	 * affected pollfds in the correct order.
+	 */
+
+	lws_pt_lock(pt, __func__);
+
+	ftp = vpt->foreign_pfd_list;
+	//lwsl_notice("cleared list %p\n", ftp);
+	while (ftp) {
+		struct lws *wsi;
+		struct lws_pollfd *pfd;
+
+		next = ftp->next;
+		pfd = &vpt->fds[ftp->fd_index];
+		if (lws_socket_is_valid(pfd->fd)) {
+			wsi = wsi_from_fd(context, pfd->fd);
+			if (wsi)
+				__lws_change_pollfd(wsi, ftp->_and, ftp->_or);
+		}
+		lws_free((void *)ftp);
+		ftp = next;
+	}
+	vpt->foreign_pfd_list = NULL;
+	lws_memory_barrier();
+
+	/* we have come out of a poll wait... check the hrtimer list */
+
+	__lws_hrtimer_service(pt);
+
+	lws_pt_unlock(pt);
+
+	m = 0;
+#if defined(LWS_ROLE_WS) && !defined(LWS_WITHOUT_EXTENSIONS)
+	m |= !!pt->ws.rx_draining_ext_list;
+#endif
+
+	if (pt->context->tls_ops &&
+	    pt->context->tls_ops->fake_POLLIN_for_buffered)
+		m |= pt->context->tls_ops->fake_POLLIN_for_buffered(pt);
+
+	if (!m && !n) { /* nothing to do */
+		lws_service_fd_tsi(context, NULL, tsi);
+		lws_service_do_ripe_rxflow(pt);
+
+		return 0;
+	}
+
+faked_service:
+	m = lws_service_flag_pending(context, tsi);
+	if (m)
+		c = -1; /* unknown limit */
+	else
+		if (n < 0) {
+			if (LWS_ERRNO != LWS_EINTR)
+				return -1;
+			return 0;
+		} else
+			c = n;
+
+	/* any socket with events to service? */
+	for (n = 0; n < (int)pt->fds_count && c; n++) {
+		if (!pt->fds[n].revents)
+			continue;
+
+		c--;
+
+		m = lws_service_fd_tsi(context, &pt->fds[n], tsi);
+		if (m < 0)
+			return -1;
+		/* if something closed, retry this slot */
+		if (m)
+			n--;
+	}
+
+	lws_service_do_ripe_rxflow(pt);
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_check_connection_error(struct lws *wsi)
+{
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_service(struct lws_context *context, int timeout_ms)
+{
+	return _lws_plat_service_tsi(context, timeout_ms, 0);
+}
+
+LWS_VISIBLE int
+lws_plat_set_socket_options(struct lws_vhost *vhost, int fd)
+{
+	int optval = 1;
+	socklen_t optlen = sizeof(optval);
+
+#ifdef LWS_WITH_IPV6
+	optval = 0;
+	setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (const void*)&optval, optlen);
+#endif
+
+#if defined(__APPLE__) || \
+    defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+    defined(__NetBSD__) || \
+    defined(__OpenBSD__) || \
+    defined(__HAIKU__)
+	struct protoent *tcp_proto;
+#endif
+
+	fcntl(fd, F_SETFD, FD_CLOEXEC);
+
+	if (vhost->ka_time) {
+		/* enable keepalive on this socket */
+		optval = 1;
+		if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
+			       (const void *)&optval, optlen) < 0)
+			return 1;
+
+#if defined(__APPLE__) || \
+    defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+    defined(__NetBSD__) || \
+    defined(__CYGWIN__) || defined(__OpenBSD__) || defined (__sun) || \
+    defined(__HAIKU__)
+
+		/*
+		 * didn't find a way to set these per-socket, need to
+		 * tune kernel systemwide values
+		 */
+#else
+		/* set the keepalive conditions we want on it too */
+
+#if defined(LWS_HAVE_TCP_USER_TIMEOUT)
+		optval = 1000 * (vhost->ka_time +
+				 (vhost->ka_interval * vhost->ka_probes));
+		if (setsockopt(fd, IPPROTO_TCP, TCP_USER_TIMEOUT,
+			       (const void *)&optval, optlen) < 0)
+			return 1;
+#endif
+		optval = vhost->ka_time;
+		if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE,
+			       (const void *)&optval, optlen) < 0)
+			return 1;
+
+		optval = vhost->ka_interval;
+		if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL,
+			       (const void *)&optval, optlen) < 0)
+			return 1;
+
+		optval = vhost->ka_probes;
+		if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT,
+			       (const void *)&optval, optlen) < 0)
+			return 1;
+#endif
+	}
+
+#if defined(SO_BINDTODEVICE)
+	if (vhost->bind_iface && vhost->iface) {
+		lwsl_info("binding listen skt to %s using SO_BINDTODEVICE\n", vhost->iface);
+		if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, vhost->iface,
+				strlen(vhost->iface)) < 0) {
+			lwsl_warn("Failed to bind to device %s\n", vhost->iface);
+			return 1;
+		}
+	}
+#endif
+
+	/* Disable Nagle */
+	optval = 1;
+#if defined (__sun) || defined(__QNX__)
+	if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
+		return 1;
+#elif !defined(__APPLE__) && \
+      !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) &&        \
+      !defined(__NetBSD__) && \
+      !defined(__OpenBSD__) && \
+      !defined(__HAIKU__)
+	if (setsockopt(fd, SOL_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
+		return 1;
+#else
+	tcp_proto = getprotobyname("TCP");
+	if (setsockopt(fd, tcp_proto->p_proto, TCP_NODELAY, &optval, optlen) < 0)
+		return 1;
+#endif
+
+	/* We are nonblocking... */
+	if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
+		return 1;
+
+	return 0;
+}
+
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+static void
+_lws_plat_apply_caps(int mode, const cap_value_t *cv, int count)
+{
+	cap_t caps;
+
+	if (!count)
+		return;
+
+	caps = cap_get_proc();
+
+	cap_set_flag(caps, mode, count, cv, CAP_SET);
+	cap_set_proc(caps);
+	prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);
+	cap_free(caps);
+}
+#endif
+
+LWS_VISIBLE void
+lws_plat_drop_app_privileges(const struct lws_context_creation_info *info)
+{
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+	int n;
+#endif
+
+	if (info->gid && info->gid != -1)
+		if (setgid(info->gid))
+			lwsl_warn("setgid: %s\n", strerror(LWS_ERRNO));
+
+	if (info->uid && info->uid != -1) {
+		struct passwd *p = getpwuid(info->uid);
+
+		if (p) {
+
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+			_lws_plat_apply_caps(CAP_PERMITTED, info->caps, info->count_caps);
+#endif
+
+			initgroups(p->pw_name, info->gid);
+			if (setuid(info->uid))
+				lwsl_warn("setuid: %s\n", strerror(LWS_ERRNO));
+			else
+				lwsl_notice("Set privs to user '%s'\n", p->pw_name);
+
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+			_lws_plat_apply_caps(CAP_EFFECTIVE, info->caps, info->count_caps);
+
+			if (info->count_caps)
+				for (n = 0; n < info->count_caps; n++)
+					lwsl_notice("   RETAINING CAPABILITY %d\n", (int)info->caps[n]);
+#endif
+
+		} else
+			lwsl_warn("getpwuid: unable to find uid %d", info->uid);
+	}
+}
+
+#ifdef LWS_WITH_PLUGINS
+
+#if defined(LWS_WITH_LIBUV) && UV_VERSION_MAJOR > 0
+
+/* libuv.c implements these in a cross-platform way */
+
+#else
+
+static int filter(const struct dirent *ent)
+{
+	if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
+		return 0;
+
+	return 1;
+}
+
+LWS_VISIBLE int
+lws_plat_plugins_init(struct lws_context * context, const char * const *d)
+{
+	struct lws_plugin_capability lcaps;
+	struct lws_plugin *plugin;
+	lws_plugin_init_func initfunc;
+	struct dirent **namelist;
+	int n, i, m, ret = 0;
+	char path[256];
+	void *l;
+
+	lwsl_notice("  Plugins:\n");
+
+	while (d && *d) {
+		n = scandir(*d, &namelist, filter, alphasort);
+		if (n < 0) {
+			lwsl_err("Scandir on %s failed\n", *d);
+			return 1;
+		}
+
+		for (i = 0; i < n; i++) {
+			if (strlen(namelist[i]->d_name) < 7)
+				goto inval;
+
+			lwsl_notice("   %s\n", namelist[i]->d_name);
+
+			lws_snprintf(path, sizeof(path) - 1, "%s/%s", *d,
+				 namelist[i]->d_name);
+			l = dlopen(path, RTLD_NOW);
+			if (!l) {
+				lwsl_err("Error loading DSO: %s\n", dlerror());
+				while (i++ < n)
+					free(namelist[i]);
+				goto bail;
+			}
+			/* we could open it, can we get his init function? */
+			m = lws_snprintf(path, sizeof(path) - 1, "init_%s",
+				     namelist[i]->d_name + 3 /* snip lib... */);
+			path[m - 3] = '\0'; /* snip the .so */
+			initfunc = dlsym(l, path);
+			if (!initfunc) {
+				lwsl_err("Failed to get init on %s: %s",
+						namelist[i]->d_name, dlerror());
+				dlclose(l);
+			}
+			lcaps.api_magic = LWS_PLUGIN_API_MAGIC;
+			m = initfunc(context, &lcaps);
+			if (m) {
+				lwsl_err("Initializing %s failed %d\n",
+					namelist[i]->d_name, m);
+				dlclose(l);
+				goto skip;
+			}
+
+			plugin = lws_malloc(sizeof(*plugin), "plugin");
+			if (!plugin) {
+				lwsl_err("OOM\n");
+				goto bail;
+			}
+			plugin->list = context->plugin_list;
+			context->plugin_list = plugin;
+			lws_strncpy(plugin->name, namelist[i]->d_name,
+				    sizeof(plugin->name));
+			plugin->l = l;
+			plugin->caps = lcaps;
+			context->plugin_protocol_count += lcaps.count_protocols;
+			context->plugin_extension_count += lcaps.count_extensions;
+
+			free(namelist[i]);
+			continue;
+
+	skip:
+			dlclose(l);
+	inval:
+			free(namelist[i]);
+		}
+		free(namelist);
+		d++;
+	}
+
+bail:
+	free(namelist);
+
+	return ret;
+}
+
+LWS_VISIBLE int
+lws_plat_plugins_destroy(struct lws_context * context)
+{
+	struct lws_plugin *plugin = context->plugin_list, *p;
+	lws_plugin_destroy_func func;
+	char path[256];
+	int m;
+
+	if (!plugin)
+		return 0;
+
+	lwsl_notice("%s\n", __func__);
+
+	while (plugin) {
+		p = plugin;
+		m = lws_snprintf(path, sizeof(path) - 1, "destroy_%s", plugin->name + 3);
+		path[m - 3] = '\0';
+		func = dlsym(plugin->l, path);
+		if (!func) {
+			lwsl_err("Failed to get destroy on %s: %s",
+					plugin->name, dlerror());
+			goto next;
+		}
+		m = func(context);
+		if (m)
+			lwsl_err("Initializing %s failed %d\n",
+				plugin->name, m);
+next:
+		dlclose(p->l);
+		plugin = p->list;
+		p->list = NULL;
+		free(p);
+	}
+
+	context->plugin_list = NULL;
+
+	return 0;
+}
+
+#endif
+#endif
+
+
+#if 0
+static void
+sigabrt_handler(int x)
+{
+	printf("%s\n", __func__);
+}
+#endif
+
+LWS_VISIBLE int
+lws_plat_context_early_init(void)
+{
+#if !defined(LWS_AVOID_SIGPIPE_IGN)
+	signal(SIGPIPE, SIG_IGN);
+#endif
+
+	return 0;
+}
+
+LWS_VISIBLE void
+lws_plat_context_early_destroy(struct lws_context *context)
+{
+}
+
+LWS_VISIBLE void
+lws_plat_context_late_destroy(struct lws_context *context)
+{
+#ifdef LWS_WITH_PLUGINS
+	if (context->plugin_list)
+		lws_plat_plugins_destroy(context);
+#endif
+
+	if (context->lws_lookup)
+		lws_free(context->lws_lookup);
+
+	if (!context->fd_random)
+		lwsl_err("ZERO RANDOM FD\n");
+	if (context->fd_random != LWS_INVALID_FILE)
+		close(context->fd_random);
+}
+
+/* cast a struct sockaddr_in6 * into addr for ipv6 */
+
+LWS_VISIBLE int
+lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
+		    size_t addrlen)
+{
+	int rc = LWS_ITOSA_NOT_EXIST;
+
+	struct ifaddrs *ifr;
+	struct ifaddrs *ifc;
+#ifdef LWS_WITH_IPV6
+	struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr;
+#endif
+
+	getifaddrs(&ifr);
+	for (ifc = ifr; ifc != NULL && rc; ifc = ifc->ifa_next) {
+		if (!ifc->ifa_addr)
+			continue;
+
+		lwsl_debug(" interface %s vs %s (fam %d) ipv6 %d\n", ifc->ifa_name, ifname, ifc->ifa_addr->sa_family, ipv6);
+
+		if (strcmp(ifc->ifa_name, ifname))
+			continue;
+
+		switch (ifc->ifa_addr->sa_family) {
+#if defined(AF_PACKET)
+		case AF_PACKET:
+			/* interface exists but is not usable */
+			rc = LWS_ITOSA_NOT_USABLE;
+			continue;
+#endif
+
+		case AF_INET:
+#ifdef LWS_WITH_IPV6
+			if (ipv6) {
+				/* map IPv4 to IPv6 */
+				bzero((char *)&addr6->sin6_addr,
+						sizeof(struct in6_addr));
+				addr6->sin6_addr.s6_addr[10] = 0xff;
+				addr6->sin6_addr.s6_addr[11] = 0xff;
+				memcpy(&addr6->sin6_addr.s6_addr[12],
+					&((struct sockaddr_in *)ifc->ifa_addr)->sin_addr,
+							sizeof(struct in_addr));
+			} else
+#endif
+				memcpy(addr,
+					(struct sockaddr_in *)ifc->ifa_addr,
+						    sizeof(struct sockaddr_in));
+			break;
+#ifdef LWS_WITH_IPV6
+		case AF_INET6:
+			memcpy(&addr6->sin6_addr,
+			  &((struct sockaddr_in6 *)ifc->ifa_addr)->sin6_addr,
+						       sizeof(struct in6_addr));
+			break;
+#endif
+		default:
+			continue;
+		}
+		rc = LWS_ITOSA_USABLE;
+	}
+
+	freeifaddrs(ifr);
+
+	if (rc) {
+		/* check if bind to IP address */
+#ifdef LWS_WITH_IPV6
+		if (inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1)
+			rc = LWS_ITOSA_USABLE;
+		else
+#endif
+		if (inet_pton(AF_INET, ifname, &addr->sin_addr) == 1)
+			rc = LWS_ITOSA_USABLE;
+	}
+
+	return rc;
+}
+
+LWS_VISIBLE void
+lws_plat_insert_socket_into_fds(struct lws_context *context, struct lws *wsi)
+{
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+	if (context->event_loop_ops->io)
+		context->event_loop_ops->io(wsi, LWS_EV_START | LWS_EV_READ);
+
+	pt->fds[pt->fds_count++].revents = 0;
+}
+
+LWS_VISIBLE void
+lws_plat_delete_socket_from_fds(struct lws_context *context,
+						struct lws *wsi, int m)
+{
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+	if (context->event_loop_ops->io)
+		context->event_loop_ops->io(wsi,
+				LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE);
+
+	pt->fds_count--;
+}
+
+LWS_VISIBLE void
+lws_plat_service_periodic(struct lws_context *context)
+{
+	/* if our parent went down, don't linger around */
+	if (context->started_with_parent &&
+	    kill(context->started_with_parent, 0) < 0)
+		kill(getpid(), SIGTERM);
+}
+
+LWS_VISIBLE int
+lws_plat_change_pollfd(struct lws_context *context,
+		      struct lws *wsi, struct lws_pollfd *pfd)
+{
+	return 0;
+}
+
+LWS_VISIBLE const char *
+lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
+{
+	return inet_ntop(af, src, dst, cnt);
+}
+
+LWS_VISIBLE int
+lws_plat_inet_pton(int af, const char *src, void *dst)
+{
+	return inet_pton(af, src, dst);
+}
+
+LWS_VISIBLE lws_fop_fd_t
+_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+		    const char *vpath, lws_fop_flags_t *flags)
+{
+	struct stat stat_buf;
+	int ret = open(filename, (*flags) & LWS_FOP_FLAGS_MASK, 0664);
+	lws_fop_fd_t fop_fd;
+
+	if (ret < 0)
+		return NULL;
+
+	if (fstat(ret, &stat_buf) < 0)
+		goto bail;
+
+	fop_fd = malloc(sizeof(*fop_fd));
+	if (!fop_fd)
+		goto bail;
+
+	fop_fd->fops = fops;
+	fop_fd->flags = *flags;
+	fop_fd->fd = ret;
+	fop_fd->filesystem_priv = NULL; /* we don't use it */
+	fop_fd->len = stat_buf.st_size;
+	fop_fd->pos = 0;
+
+	return fop_fd;
+
+bail:
+	close(ret);
+	return NULL;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_close(lws_fop_fd_t *fop_fd)
+{
+	int fd = (*fop_fd)->fd;
+
+	free(*fop_fd);
+	*fop_fd = NULL;
+
+	return close(fd);
+}
+
+LWS_VISIBLE lws_fileofs_t
+_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
+{
+	lws_fileofs_t r;
+
+	if (offset > 0 &&
+	    offset > (lws_fileofs_t)fop_fd->len - (lws_fileofs_t)fop_fd->pos)
+		offset = fop_fd->len - fop_fd->pos;
+
+	if ((lws_fileofs_t)fop_fd->pos + offset < 0)
+		offset = -fop_fd->pos;
+
+	r = lseek(fop_fd->fd, offset, SEEK_CUR);
+
+	if (r >= 0)
+		fop_fd->pos = r;
+	else
+		lwsl_err("error seeking from cur %ld, offset %ld\n",
+                        (long)fop_fd->pos, (long)offset);
+
+	return r;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		    uint8_t *buf, lws_filepos_t len)
+{
+	long n;
+
+	n = read((int)fop_fd->fd, buf, len);
+	if (n == -1) {
+		*amount = 0;
+		return -1;
+	}
+	fop_fd->pos += n;
+	lwsl_debug("%s: read %ld of req %ld, pos %ld, len %ld\n", __func__, n,
+                  (long)len, (long)fop_fd->pos, (long)fop_fd->len);
+	*amount = n;
+
+	return 0;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		     uint8_t *buf, lws_filepos_t len)
+{
+	long n;
+
+	n = write((int)fop_fd->fd, buf, len);
+	if (n == -1) {
+		*amount = 0;
+		return -1;
+	}
+
+	fop_fd->pos += n;
+	*amount = n;
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_init(struct lws_context *context,
+	      const struct lws_context_creation_info *info)
+{
+	int fd;
+
+	/* master context has the global fd lookup array */
+	context->lws_lookup = lws_zalloc(sizeof(struct lws *) *
+					 context->max_fds, "lws_lookup");
+	if (context->lws_lookup == NULL) {
+		lwsl_err("OOM on lws_lookup array for %d connections\n",
+			 context->max_fds);
+		return 1;
+	}
+
+	lwsl_info(" mem: platform fd map: %5lu bytes\n",
+		    (unsigned long)(sizeof(struct lws *) * context->max_fds));
+	fd = open(SYSTEM_RANDOM_FILEPATH, O_RDONLY);
+
+	context->fd_random = fd;
+	if (context->fd_random < 0) {
+		lwsl_err("Unable to open random device %s %d\n",
+			 SYSTEM_RANDOM_FILEPATH, context->fd_random);
+		return 1;
+	}
+
+#ifdef LWS_WITH_PLUGINS
+	if (info->plugin_dirs)
+		lws_plat_plugins_init(context, info->plugin_dirs);
+#endif
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
+			int len)
+{
+	int n;
+
+	n = write(fd, buf, len);
+
+	fsync(fd);
+	lseek(fd, 0, SEEK_SET);
+
+	return n != len;
+}
+
+LWS_VISIBLE int
+lws_plat_write_file(const char *filename, void *buf, int len)
+{
+	int m, fd;
+
+	fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+
+	if (fd == -1)
+		return 1;
+
+	m = write(fd, buf, len);
+	close(fd);
+
+	return m != len;
+}
+
+LWS_VISIBLE int
+lws_plat_read_file(const char *filename, void *buf, int len)
+{
+	int n, fd = lws_open(filename, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	n = read(fd, buf, len);
+	close(fd);
+
+	return n;
+}
+
+LWS_VISIBLE int
+lws_plat_recommended_rsa_bits(void)
+{
+	return 4096;
+}
diff --git a/thirdparty/libwebsockets/plat/lws-plat-win.c b/thirdparty/libwebsockets/plat/lws-plat-win.c
new file mode 100644
index 0000000000..26caab2cde
--- /dev/null
+++ b/thirdparty/libwebsockets/plat/lws-plat-win.c
@@ -0,0 +1,852 @@
+#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
+#define _WINSOCK_DEPRECATED_NO_WARNINGS
+#endif
+#include "core/private.h"
+
+void lws_plat_apply_FD_CLOEXEC(int n)
+{
+}
+
+int
+lws_plat_socket_offset(void)
+{
+	return 0;
+}
+
+int
+lws_plat_pipe_create(struct lws *wsi)
+{
+	return 1;
+}
+
+int
+lws_plat_pipe_signal(struct lws *wsi)
+{
+	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
+
+	WSASetEvent(pt->events[0]); /* trigger the cancel event */
+
+	return 0;
+}
+
+void
+lws_plat_pipe_close(struct lws *wsi)
+{
+}
+
+unsigned long long
+time_in_microseconds()
+{
+#ifndef DELTA_EPOCH_IN_MICROSECS
+#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
+#endif
+	FILETIME filetime;
+	ULARGE_INTEGER datetime;
+
+#ifdef _WIN32_WCE
+	GetCurrentFT(&filetime);
+#else
+	GetSystemTimeAsFileTime(&filetime);
+#endif
+
+	/*
+	 * As per Windows documentation for FILETIME, copy the resulting
+	 * FILETIME structure to a ULARGE_INTEGER structure using memcpy
+	 * (using memcpy instead of direct assignment can prevent alignment
+	 * faults on 64-bit Windows).
+	 */
+	memcpy(&datetime, &filetime, sizeof(datetime));
+
+	/* Windows file times are in 100s of nanoseconds. */
+	return (datetime.QuadPart / 10) - DELTA_EPOCH_IN_MICROSECS;
+}
+
+#ifdef _WIN32_WCE
+time_t time(time_t *t)
+{
+	time_t ret = time_in_microseconds() / 1000000;
+
+	if(t != NULL)
+		*t = ret;
+
+	return ret;
+}
+#endif
+
+/* file descriptor hash management */
+
+struct lws *
+wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd)
+{
+	int h = LWS_FD_HASH(fd);
+	int n = 0;
+
+	for (n = 0; n < context->fd_hashtable[h].length; n++)
+		if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd)
+			return context->fd_hashtable[h].wsi[n];
+
+	return NULL;
+}
+
+int
+insert_wsi(struct lws_context *context, struct lws *wsi)
+{
+	int h = LWS_FD_HASH(wsi->desc.sockfd);
+
+	if (context->fd_hashtable[h].length == (getdtablesize() - 1)) {
+		lwsl_err("hash table overflow\n");
+		return 1;
+	}
+
+	context->fd_hashtable[h].wsi[context->fd_hashtable[h].length++] = wsi;
+
+	return 0;
+}
+
+int
+delete_from_fd(struct lws_context *context, lws_sockfd_type fd)
+{
+	int h = LWS_FD_HASH(fd);
+	int n = 0;
+
+	for (n = 0; n < context->fd_hashtable[h].length; n++)
+		if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd) {
+			while (n < context->fd_hashtable[h].length) {
+				context->fd_hashtable[h].wsi[n] =
+					context->fd_hashtable[h].wsi[n + 1];
+				n++;
+			}
+			context->fd_hashtable[h].length--;
+
+			return 0;
+		}
+
+	lwsl_err("Failed to find fd %d requested for "
+		 "delete in hashtable\n", fd);
+	return 1;
+}
+
+LWS_VISIBLE int
+lws_get_random(struct lws_context *context, void *buf, int len)
+{
+	int n;
+	char *p = (char *)buf;
+
+	for (n = 0; n < len; n++)
+		p[n] = (unsigned char)rand();
+
+	return n;
+}
+
+LWS_VISIBLE int
+lws_send_pipe_choked(struct lws *wsi)
+{	struct lws *wsi_eff = wsi;
+
+#if defined(LWS_WITH_HTTP2)
+	wsi_eff = lws_get_network_wsi(wsi);
+#endif
+	/* the fact we checked implies we avoided back-to-back writes */
+	wsi_eff->could_have_pending = 0;
+
+	/* treat the fact we got a truncated send pending as if we're choked */
+	if (wsi_eff->trunc_len)
+		return 1;
+
+	return (int)wsi_eff->sock_send_blocking;
+}
+
+LWS_VISIBLE int
+lws_poll_listen_fd(struct lws_pollfd *fd)
+{
+	fd_set readfds;
+	struct timeval tv = { 0, 0 };
+
+	assert((fd->events & LWS_POLLIN) == LWS_POLLIN);
+
+	FD_ZERO(&readfds);
+	FD_SET(fd->fd, &readfds);
+
+	return select(((int)fd->fd) + 1, &readfds, NULL, NULL, &tv);
+}
+
+LWS_VISIBLE void
+lwsl_emit_syslog(int level, const char *line)
+{
+	lwsl_emit_stderr(level, line);
+}
+
+LWS_VISIBLE LWS_EXTERN int
+_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
+{
+	struct lws_context_per_thread *pt;
+	WSANETWORKEVENTS networkevents;
+	struct lws_pollfd *pfd;
+	struct lws *wsi;
+	unsigned int i;
+	DWORD ev;
+	int n, m;
+
+	/* stay dead once we are dead */
+	if (context == NULL || !context->vhost_list)
+		return 1;
+
+	pt = &context->pt[tsi];
+
+	if (!context->service_tid_detected) {
+		struct lws _lws;
+
+		memset(&_lws, 0, sizeof(_lws));
+		_lws.context = context;
+
+		context->service_tid_detected = context->vhost_list->
+			protocols[0].callback(&_lws, LWS_CALLBACK_GET_THREAD_ID,
+						  NULL, NULL, 0);
+		context->service_tid = context->service_tid_detected;
+		context->service_tid_detected = 1;
+	}
+
+	if (timeout_ms < 0) {
+		if (lws_service_flag_pending(context, tsi)) {
+			/* any socket with events to service? */
+			for (n = 0; n < (int)pt->fds_count; n++) {
+				if (!pt->fds[n].revents)
+					continue;
+
+				m = lws_service_fd_tsi(context, &pt->fds[n], tsi);
+				if (m < 0)
+					return -1;
+				/* if something closed, retry this slot */
+				if (m)
+					n--;
+			}
+		}
+		return 0;
+	}
+
+	if (context->event_loop_ops->run_pt)
+		context->event_loop_ops->run_pt(context, tsi);
+
+	for (i = 0; i < pt->fds_count; ++i) {
+		pfd = &pt->fds[i];
+
+		if (!(pfd->events & LWS_POLLOUT))
+			continue;
+
+		wsi = wsi_from_fd(context, pfd->fd);
+		if (!wsi || wsi->listener)
+			continue;
+		if (wsi->sock_send_blocking)
+			continue;
+		pfd->revents = LWS_POLLOUT;
+		n = lws_service_fd(context, pfd);
+		if (n < 0)
+			return -1;
+
+		/* Force WSAWaitForMultipleEvents() to check events and then return immediately. */
+		timeout_ms = 0;
+
+		/* if something closed, retry this slot */
+		if (n)
+			i--;
+	}
+
+	/*
+	 * is there anybody with pending stuff that needs service forcing?
+	 */
+	if (!lws_service_adjust_timeout(context, 1, tsi)) {
+		/* -1 timeout means just do forced service */
+		_lws_plat_service_tsi(context, -1, pt->tid);
+		/* still somebody left who wants forced service? */
+		if (!lws_service_adjust_timeout(context, 1, pt->tid))
+			/* yes... come back again quickly */
+			timeout_ms = 0;
+	}
+
+	if (timeout_ms) {
+		lws_usec_t t;
+
+		lws_pt_lock(pt, __func__);
+		/* don't stay in poll wait longer than next hr timeout */
+		t =  __lws_hrtimer_service(pt);
+
+		if ((lws_usec_t)timeout_ms * 1000 > t)
+			timeout_ms = (int)(t / 1000);
+		lws_pt_unlock(pt);
+	}
+
+	ev = WSAWaitForMultipleEvents(1, pt->events, FALSE, timeout_ms, FALSE);
+	if (ev == WSA_WAIT_EVENT_0) {
+		unsigned int eIdx, err;
+
+		WSAResetEvent(pt->events[0]);
+
+		if (pt->context->tls_ops &&
+		    pt->context->tls_ops->fake_POLLIN_for_buffered)
+			pt->context->tls_ops->fake_POLLIN_for_buffered(pt);
+
+		for (eIdx = 0; eIdx < pt->fds_count; ++eIdx) {
+			if (WSAEnumNetworkEvents(pt->fds[eIdx].fd, 0,
+					&networkevents) == SOCKET_ERROR) {
+				lwsl_err("WSAEnumNetworkEvents() failed "
+					 "with error %d\n", LWS_ERRNO);
+				return -1;
+			}
+
+			pfd = &pt->fds[eIdx];
+			pfd->revents = (short)networkevents.lNetworkEvents;
+
+			err = networkevents.iErrorCode[FD_CONNECT_BIT];
+
+			if ((networkevents.lNetworkEvents & FD_CONNECT) &&
+			     err && err != LWS_EALREADY &&
+			     err != LWS_EINPROGRESS && err != LWS_EWOULDBLOCK &&
+			     err != WSAEINVAL) {
+				lwsl_debug("Unable to connect errno=%d\n", err);
+				pfd->revents |= LWS_POLLHUP;
+			}
+
+			if (pfd->revents & LWS_POLLOUT) {
+				wsi = wsi_from_fd(context, pfd->fd);
+				if (wsi)
+					wsi->sock_send_blocking = 0;
+			}
+			 /* if something closed, retry this slot */
+			if (pfd->revents & LWS_POLLHUP)
+				--eIdx;
+
+			if (pfd->revents) {
+				recv(pfd->fd, NULL, 0, 0);
+				lws_service_fd_tsi(context, pfd, tsi);
+			}
+		}
+	}
+
+	context->service_tid = 0;
+
+	if (ev == WSA_WAIT_TIMEOUT)
+		lws_service_fd(context, NULL);
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_service(struct lws_context *context, int timeout_ms)
+{
+	return _lws_plat_service_tsi(context, timeout_ms, 0);
+}
+
+LWS_VISIBLE int
+lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd)
+{
+	int optval = 1;
+	int optlen = sizeof(optval);
+	u_long optl = 1;
+	DWORD dwBytesRet;
+	struct tcp_keepalive alive;
+	int protonbr;
+#ifndef _WIN32_WCE
+	struct protoent *tcp_proto;
+#endif
+
+#ifdef LWS_WITH_IPV6
+	optval = 0;
+	setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (const void*)&optval, optlen);
+#endif
+
+	if (vhost->ka_time) {
+		/* enable keepalive on this socket */
+		optval = 1;
+		if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
+			       (const char *)&optval, optlen) < 0)
+			return 1;
+
+		alive.onoff = TRUE;
+		alive.keepalivetime = vhost->ka_time;
+		alive.keepaliveinterval = vhost->ka_interval;
+
+		if (WSAIoctl(fd, SIO_KEEPALIVE_VALS, &alive, sizeof(alive),
+			     NULL, 0, &dwBytesRet, NULL, NULL))
+			return 1;
+	}
+
+	/* Disable Nagle */
+	optval = 1;
+#ifndef _WIN32_WCE
+	tcp_proto = getprotobyname("TCP");
+	if (!tcp_proto) {
+		lwsl_err("getprotobyname() failed with error %d\n", LWS_ERRNO);
+		return 1;
+	}
+	protonbr = tcp_proto->p_proto;
+#else
+	protonbr = 6;
+#endif
+
+	setsockopt(fd, protonbr, TCP_NODELAY, (const char *)&optval, optlen);
+
+	/* We are nonblocking... */
+	ioctlsocket(fd, FIONBIO, &optl);
+
+	return 0;
+}
+
+LWS_VISIBLE void
+lws_plat_drop_app_privileges(const struct lws_context_creation_info *info)
+{
+}
+
+LWS_VISIBLE int
+lws_plat_context_early_init(void)
+{
+	WORD wVersionRequested;
+	WSADATA wsaData;
+	int err;
+
+	/* Use the MAKEWORD(lowbyte, highbyte) macro from Windef.h */
+	wVersionRequested = MAKEWORD(2, 2);
+
+	err = WSAStartup(wVersionRequested, &wsaData);
+	if (!err)
+		return 0;
+	/*
+	 * Tell the user that we could not find a usable
+	 * Winsock DLL
+	 */
+	lwsl_err("WSAStartup failed with error: %d\n", err);
+
+	return 1;
+}
+
+LWS_VISIBLE void
+lws_plat_context_early_destroy(struct lws_context *context)
+{
+	struct lws_context_per_thread *pt = &context->pt[0];
+	int n = context->count_threads;
+
+	while (n--) {
+		if (pt->events) {
+			WSACloseEvent(pt->events[0]);
+			lws_free(pt->events);
+		}
+		pt++;
+	}
+}
+
+LWS_VISIBLE void
+lws_plat_context_late_destroy(struct lws_context *context)
+{
+	int n;
+
+	for (n = 0; n < FD_HASHTABLE_MODULUS; n++) {
+		if (context->fd_hashtable[n].wsi)
+			lws_free(context->fd_hashtable[n].wsi);
+	}
+
+	WSACleanup();
+}
+
+LWS_VISIBLE LWS_EXTERN int
+lws_interface_to_sa(int ipv6,
+		const char *ifname, struct sockaddr_in *addr, size_t addrlen)
+{
+#ifdef LWS_WITH_IPV6
+	struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr;
+
+	if (ipv6) {
+		if (lws_plat_inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1) {
+			return LWS_ITOSA_USABLE;
+		}
+	}
+#endif
+
+	long long address = inet_addr(ifname);
+
+	if (address == INADDR_NONE) {
+		struct hostent *entry = gethostbyname(ifname);
+		if (entry)
+			address = ((struct in_addr *)entry->h_addr_list[0])->s_addr;
+	}
+
+	if (address == INADDR_NONE)
+		return LWS_ITOSA_NOT_EXIST;
+
+	addr->sin_addr.s_addr = (unsigned long)(lws_intptr_t)address;
+
+	return LWS_ITOSA_USABLE;
+}
+
+LWS_VISIBLE void
+lws_plat_insert_socket_into_fds(struct lws_context *context, struct lws *wsi)
+{
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+	pt->fds[pt->fds_count++].revents = 0;
+	pt->events[pt->fds_count] = pt->events[0];
+	WSAEventSelect(wsi->desc.sockfd, pt->events[0],
+			   LWS_POLLIN | LWS_POLLHUP | FD_CONNECT);
+}
+
+LWS_VISIBLE void
+lws_plat_delete_socket_from_fds(struct lws_context *context,
+						struct lws *wsi, int m)
+{
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+	pt->events[m + 1] = pt->events[pt->fds_count--];
+}
+
+LWS_VISIBLE void
+lws_plat_service_periodic(struct lws_context *context)
+{
+}
+
+LWS_VISIBLE int
+lws_plat_check_connection_error(struct lws *wsi)
+{
+	int optVal;
+	int optLen = sizeof(int);
+
+	if (getsockopt(wsi->desc.sockfd, SOL_SOCKET, SO_ERROR,
+			   (char*)&optVal, &optLen) != SOCKET_ERROR && optVal &&
+		optVal != LWS_EALREADY && optVal != LWS_EINPROGRESS &&
+		optVal != LWS_EWOULDBLOCK && optVal != WSAEINVAL) {
+		   lwsl_debug("Connect failed SO_ERROR=%d\n", optVal);
+		   return 1;
+	}
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_change_pollfd(struct lws_context *context,
+			  struct lws *wsi, struct lws_pollfd *pfd)
+{
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+	long networkevents = LWS_POLLHUP | FD_CONNECT;
+
+	if ((pfd->events & LWS_POLLIN))
+		networkevents |= LWS_POLLIN;
+
+	if ((pfd->events & LWS_POLLOUT))
+		networkevents |= LWS_POLLOUT;
+
+	if (WSAEventSelect(wsi->desc.sockfd,
+			pt->events[0],
+						   networkevents) != SOCKET_ERROR)
+		return 0;
+
+	lwsl_err("WSAEventSelect() failed with error %d\n", LWS_ERRNO);
+
+	return 1;
+}
+
+LWS_VISIBLE const char *
+lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
+{
+	WCHAR *buffer;
+	DWORD bufferlen = cnt;
+	BOOL ok = FALSE;
+
+	buffer = lws_malloc(bufferlen * 2, "inet_ntop");
+	if (!buffer) {
+		lwsl_err("Out of memory\n");
+		return NULL;
+	}
+
+	if (af == AF_INET) {
+		struct sockaddr_in srcaddr;
+		bzero(&srcaddr, sizeof(srcaddr));
+		srcaddr.sin_family = AF_INET;
+		memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr));
+
+		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
+			ok = TRUE;
+#ifdef LWS_WITH_IPV6
+	} else if (af == AF_INET6) {
+		struct sockaddr_in6 srcaddr;
+		bzero(&srcaddr, sizeof(srcaddr));
+		srcaddr.sin6_family = AF_INET6;
+		memcpy(&(srcaddr.sin6_addr), src, sizeof(srcaddr.sin6_addr));
+
+		if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen))
+			ok = TRUE;
+#endif
+	} else
+		lwsl_err("Unsupported type\n");
+
+	if (!ok) {
+		int rv = WSAGetLastError();
+		lwsl_err("WSAAddressToString() : %d\n", rv);
+	} else {
+		if (WideCharToMultiByte(CP_ACP, 0, buffer, bufferlen, dst, cnt, 0, NULL) <= 0)
+			ok = FALSE;
+	}
+
+	lws_free(buffer);
+	return ok ? dst : NULL;
+}
+
+LWS_VISIBLE int
+lws_plat_inet_pton(int af, const char *src, void *dst)
+{
+	WCHAR *buffer;
+	DWORD bufferlen = (int)strlen(src) + 1;
+	BOOL ok = FALSE;
+
+	buffer = lws_malloc(bufferlen * 2, "inet_pton");
+	if (!buffer) {
+		lwsl_err("Out of memory\n");
+		return -1;
+	}
+
+	if (MultiByteToWideChar(CP_ACP, 0, src, bufferlen, buffer, bufferlen) <= 0) {
+		lwsl_err("Failed to convert multi byte to wide char\n");
+		lws_free(buffer);
+		return -1;
+	}
+
+	if (af == AF_INET) {
+		struct sockaddr_in dstaddr;
+		int dstaddrlen = sizeof(dstaddr);
+		bzero(&dstaddr, sizeof(dstaddr));
+		dstaddr.sin_family = AF_INET;
+
+		if (!WSAStringToAddressW(buffer, af, 0, (struct sockaddr *) &dstaddr, &dstaddrlen)) {
+			ok = TRUE;
+			memcpy(dst, &dstaddr.sin_addr, sizeof(dstaddr.sin_addr));
+		}
+#ifdef LWS_WITH_IPV6
+	} else if (af == AF_INET6) {
+		struct sockaddr_in6 dstaddr;
+		int dstaddrlen = sizeof(dstaddr);
+		bzero(&dstaddr, sizeof(dstaddr));
+		dstaddr.sin6_family = AF_INET6;
+
+		if (!WSAStringToAddressW(buffer, af, 0, (struct sockaddr *) &dstaddr, &dstaddrlen)) {
+			ok = TRUE;
+			memcpy(dst, &dstaddr.sin6_addr, sizeof(dstaddr.sin6_addr));
+		}
+#endif
+	} else
+		lwsl_err("Unsupported type\n");
+
+	if (!ok) {
+		int rv = WSAGetLastError();
+		lwsl_err("WSAAddressToString() : %d\n", rv);
+	}
+
+	lws_free(buffer);
+	return ok ? 1 : -1;
+}
+
+LWS_VISIBLE lws_fop_fd_t
+_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+		    const char *vpath, lws_fop_flags_t *flags)
+{
+	HANDLE ret;
+	WCHAR buf[MAX_PATH];
+	lws_fop_fd_t fop_fd;
+	FILE_STANDARD_INFO fInfo = {0};
+
+	MultiByteToWideChar(CP_UTF8, 0, filename, -1, buf, LWS_ARRAY_SIZE(buf));
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0602 // Windows 8 (minimum when UWP_ENABLED, but can be used in Windows builds)
+	CREATEFILE2_EXTENDED_PARAMETERS extParams = {0};
+	extParams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
+
+	if (((*flags) & 7) == _O_RDONLY) {
+		ret = CreateFile2(buf, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, &extParams);
+	} else {
+		ret = CreateFile2(buf, GENERIC_WRITE, 0, CREATE_ALWAYS, &extParams);
+	}
+#else
+	if (((*flags) & 7) == _O_RDONLY) {
+		ret = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ,
+			  NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+	} else {
+		ret = CreateFileW(buf, GENERIC_WRITE, 0, NULL,
+			  CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+	}
+#endif
+
+	if (ret == LWS_INVALID_FILE)
+		goto bail;
+
+	fop_fd = malloc(sizeof(*fop_fd));
+	if (!fop_fd)
+		goto bail;
+
+	fop_fd->fops = fops;
+	fop_fd->fd = ret;
+	fop_fd->filesystem_priv = NULL; /* we don't use it */
+	fop_fd->flags = *flags;
+	fop_fd->len = 0;
+	if(GetFileInformationByHandleEx(ret, FileStandardInfo, &fInfo, sizeof(fInfo)))
+		fop_fd->len = fInfo.EndOfFile.QuadPart;
+
+	fop_fd->pos = 0;
+
+	return fop_fd;
+
+bail:
+	return NULL;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_close(lws_fop_fd_t *fop_fd)
+{
+	HANDLE fd = (*fop_fd)->fd;
+
+	free(*fop_fd);
+	*fop_fd = NULL;
+
+	CloseHandle((HANDLE)fd);
+
+	return 0;
+}
+
+LWS_VISIBLE lws_fileofs_t
+_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
+{
+	LARGE_INTEGER l;
+
+	l.QuadPart = offset;
+	return SetFilePointerEx((HANDLE)fop_fd->fd, l, NULL, FILE_CURRENT);
+}
+
+LWS_VISIBLE int
+_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+		    uint8_t *buf, lws_filepos_t len)
+{
+	DWORD _amount;
+
+	if (!ReadFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) {
+		*amount = 0;
+
+		return 1;
+	}
+
+	fop_fd->pos += _amount;
+	*amount = (unsigned long)_amount;
+
+	return 0;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+			 uint8_t* buf, lws_filepos_t len)
+{
+	DWORD _amount;
+
+	if (!WriteFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) {
+		*amount = 0;
+
+		return 1;
+	}
+
+	fop_fd->pos += _amount;
+	*amount = (unsigned long)_amount;
+
+	return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_init(struct lws_context *context,
+	      const struct lws_context_creation_info *info)
+{
+	struct lws_context_per_thread *pt = &context->pt[0];
+	int i, n = context->count_threads;
+
+	for (i = 0; i < FD_HASHTABLE_MODULUS; i++) {
+		context->fd_hashtable[i].wsi =
+			lws_zalloc(sizeof(struct lws*) * context->max_fds, "win hashtable");
+
+		if (!context->fd_hashtable[i].wsi)
+			return -1;
+	}
+
+	while (n--) {
+		pt->events = lws_malloc(sizeof(WSAEVENT) *
+					(context->fd_limit_per_thread + 1), "event table");
+		if (pt->events == NULL) {
+			lwsl_err("Unable to allocate events array for %d connections\n",
+					context->fd_limit_per_thread + 1);
+			return 1;
+		}
+
+		pt->fds_count = 0;
+		pt->events[0] = WSACreateEvent(); /* the cancel event */
+
+		pt++;
+	}
+
+	context->fd_random = 0;
+
+#ifdef LWS_WITH_PLUGINS
+	if (info->plugin_dirs)
+		lws_plat_plugins_init(context, info->plugin_dirs);
+#endif
+
+	return 0;
+}
+
+
+int kill(int pid, int sig)
+{
+	lwsl_err("Sorry Windows doesn't support kill().");
+	exit(0);
+}
+
+int fork(void)
+{
+	lwsl_err("Sorry Windows doesn't support fork().");
+	exit(0);
+}
+
+LWS_VISIBLE int
+lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
+			int len)
+{
+	int n;
+
+	n = write(fd, buf, len);
+
+	lseek(fd, 0, SEEK_SET);
+
+	return n != len;
+}
+
+LWS_VISIBLE int
+lws_plat_write_file(const char *filename, void *buf, int len)
+{
+	int m, fd;
+
+	fd = lws_open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+
+	if (fd == -1)
+		return -1;
+
+	m = write(fd, buf, len);
+	close(fd);
+
+	return m != len;
+}
+
+LWS_VISIBLE int
+lws_plat_read_file(const char *filename, void *buf, int len)
+{
+	int n, fd = lws_open(filename, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	n = read(fd, buf, len);
+	close(fd);
+
+	return n;
+}
+
+LWS_VISIBLE int
+lws_plat_recommended_rsa_bits(void)
+{
+	return 4096;
+}
diff --git a/thirdparty/libwebsockets/lib/roles/h1/ops-h1.c b/thirdparty/libwebsockets/roles/h1/ops-h1.c
index 2fa0fe16e4..9001c864ea 100644
--- a/thirdparty/libwebsockets/lib/roles/h1/ops-h1.c
+++ b/thirdparty/libwebsockets/roles/h1/ops-h1.c
@@ -42,7 +42,7 @@ lws_read_h1(struct lws *wsi, unsigned char *buf, lws_filepos_t len)
 	lws_filepos_t body_chunk_len;
 	size_t n;
 
-	lwsl_debug("%s: h1 path: wsi state 0x%x\n", __func__, lwsi_state(wsi));
+	// lwsl_notice("%s: h1 path: wsi state 0x%x\n", __func__, lwsi_state(wsi));
 
 	switch (lwsi_state(wsi)) {
 
@@ -90,6 +90,7 @@ lws_read_h1(struct lws *wsi, unsigned char *buf, lws_filepos_t len)
 		 * appropriately:
 		 */
 		len -= (buf - last_char);
+//		lwsl_debug("%s: thinks we have used %ld\n", __func__, (long)len);
 
 		if (!wsi->hdr_parsing_completed)
 			/* More header content on the way */
@@ -118,10 +119,6 @@ lws_read_h1(struct lws *wsi, unsigned char *buf, lws_filepos_t len)
 http_postbody:
 		lwsl_debug("%s: http post body: remain %d\n", __func__,
 			    (int)wsi->http.rx_content_remain);
-
-		if (!wsi->http.rx_content_remain)
-			goto postbody_completion;
-
 		while (len && wsi->http.rx_content_remain) {
 			/* Copy as much as possible, up to the limit of:
 			 * what we have in the read buffer (len)
@@ -161,8 +158,7 @@ http_postbody:
 			buf += n;
 
 			if (wsi->http.rx_content_remain)  {
-				lws_set_timeout(wsi,
-						PENDING_TIMEOUT_HTTP_CONTENT,
+				lws_set_timeout(wsi, PENDING_TIMEOUT_HTTP_CONTENT,
 						wsi->context->timeout_secs);
 				break;
 			}
@@ -225,7 +221,7 @@ ws_mode:
 		break;
 
 	case LRS_DEFERRING_ACTION:
-		lwsl_notice("%s: LRS_DEFERRING_ACTION\n", __func__);
+		lwsl_debug("%s: LRS_DEFERRING_ACTION\n", __func__);
 		break;
 
 	case LRS_SSL_ACK_PENDING:
@@ -315,8 +311,7 @@ lws_h1_server_socket_service(struct lws *wsi, struct lws_pollfd *pollfd)
 	     lwsi_state(wsi) == LRS_BODY)) {
 
 		if (!wsi->http.ah && lws_header_table_attach(wsi, 0)) {
-			lwsl_info("%s: wsi %p: ah not available\n", __func__,
-				  wsi);
+			lwsl_info("%s: wsi %p: ah not available\n", __func__, wsi);
 			goto try_pollout;
 		}
 
@@ -342,8 +337,7 @@ lws_h1_server_socket_service(struct lws *wsi, struct lws_pollfd *pollfd)
 			 * and draining the extensions
 			 */
 			if (wsi->ws &&
-			    (wsi->ws->rx_draining_ext ||
-			     wsi->ws->tx_draining_ext))
+			    (wsi->ws->rx_draining_ext || wsi->ws->tx_draining_ext))
 				goto try_pollout;
 #endif
 			/*
@@ -451,9 +445,10 @@ try_pollout:
 
 	if (lwsi_state(wsi) != LRS_ISSUING_FILE) {
 
-		if (lws_has_buffered_out(wsi)) {
+		if (wsi->trunc_len) {
 			//lwsl_notice("%s: completing partial\n", __func__);
-			if (lws_issue_raw(wsi, NULL, 0) < 0) {
+			if (lws_issue_raw(wsi, wsi->trunc_alloc + wsi->trunc_offset,
+					  wsi->trunc_len) < 0) {
 				lwsl_info("%s signalling to close\n", __func__);
 				goto fail;
 			}
@@ -464,7 +459,7 @@ try_pollout:
 					LWSSTATS_C_WRITEABLE_CB, 1);
 #if defined(LWS_WITH_STATS)
 		if (wsi->active_writable_req_us) {
-			uint64_t ul = lws_time_in_microseconds() -
+			uint64_t ul = time_in_microseconds() -
 					wsi->active_writable_req_us;
 
 			lws_stats_atomic_bump(wsi->context, pt,
@@ -524,58 +519,6 @@ rops_handle_POLLIN_h1(struct lws_context_per_thread *pt, struct lws *wsi,
 	}
 #endif
 
-#if 0
-
-	/*
-	 * !!! lws_serve_http_file_fragment() seems to duplicate most of
-	 * lws_handle_POLLOUT_event() in its own loop...
-	 */
-	lwsl_debug("%s: %d %d\n", __func__, (pollfd->revents & LWS_POLLOUT),
-			lwsi_state_can_handle_POLLOUT(wsi));
-
-	if ((pollfd->revents & LWS_POLLOUT) &&
-	    lwsi_state_can_handle_POLLOUT(wsi) &&
-	    lws_handle_POLLOUT_event(wsi, pollfd)) {
-		if (lwsi_state(wsi) == LRS_RETURNED_CLOSE)
-			lwsi_set_state(wsi, LRS_FLUSHING_BEFORE_CLOSE);
-		/* the write failed... it's had it */
-		wsi->socket_is_permanently_unusable = 1;
-
-		return LWS_HPI_RET_PLEASE_CLOSE_ME;
-	}
-#endif
-
-
-	/* Priority 2: pre- compression transform */
-
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (wsi->http.comp_ctx.buflist_comp ||
-	    wsi->http.comp_ctx.may_have_more) {
-		enum lws_write_protocol wp = LWS_WRITE_HTTP;
-
-		lwsl_info("%s: completing comp partial (buflist_comp %p, may %d)\n",
-				__func__, wsi->http.comp_ctx.buflist_comp,
-				wsi->http.comp_ctx.may_have_more
-				);
-
-		if (wsi->role_ops->write_role_protocol(wsi, NULL, 0, &wp) < 0) {
-			lwsl_info("%s signalling to close\n", __func__);
-			return LWS_HPI_RET_PLEASE_CLOSE_ME;
-		}
-		lws_callback_on_writable(wsi);
-
-		if (!wsi->http.comp_ctx.buflist_comp &&
-		    !wsi->http.comp_ctx.may_have_more &&
-		    wsi->http.deferred_transaction_completed) {
-			wsi->http.deferred_transaction_completed = 0;
-			if (lws_http_transaction_completed(wsi))
-				return LWS_HPI_RET_PLEASE_CLOSE_ME;
-		}
-
-		return LWS_HPI_RET_HANDLED;
-	}
-#endif
-
         if (lws_is_flowcontrolled(wsi))
                 /* We cannot deal with any kind of new RX because we are
                  * RX-flowcontrolled.
@@ -586,14 +529,12 @@ rops_handle_POLLIN_h1(struct lws_context_per_thread *pt, struct lws *wsi,
 	if (!lwsi_role_client(wsi)) {
 		int n;
 
-		lwsl_debug("%s: %p: wsistate 0x%x\n", __func__, wsi,
-			   wsi->wsistate);
+		lwsl_debug("%s: %p: wsistate 0x%x\n", __func__, wsi, wsi->wsistate);
 		n = lws_h1_server_socket_service(wsi, pollfd);
 		if (n != LWS_HPI_RET_HANDLED)
 			return n;
 		if (lwsi_state(wsi) != LRS_SSL_INIT)
-			if (lws_server_socket_service_ssl(wsi,
-							  LWS_SOCK_INVALID))
+			if (lws_server_socket_service_ssl(wsi, LWS_SOCK_INVALID))
 				return LWS_HPI_RET_PLEASE_CLOSE_ME;
 
 		return LWS_HPI_RET_HANDLED;
@@ -623,9 +564,10 @@ rops_handle_POLLIN_h1(struct lws_context_per_thread *pt, struct lws *wsi,
 		/* let user code know, he'll usually ask for writeable
 		 * callback and drain / re-enable it there
 		 */
-		if (user_callback_handle_rxflow(wsi->protocol->callback, wsi,
-					       LWS_CALLBACK_RECEIVE_CLIENT_HTTP,
-						wsi->user_space, NULL, 0)) {
+		if (user_callback_handle_rxflow(
+				wsi->protocol->callback,
+				wsi, LWS_CALLBACK_RECEIVE_CLIENT_HTTP,
+				wsi->user_space, NULL, 0)) {
 			lwsl_info("RECEIVE_CLIENT_HTTP closed it\n");
 			return LWS_HPI_RET_PLEASE_CLOSE_ME;
 		}
@@ -666,68 +608,19 @@ static int
 rops_write_role_protocol_h1(struct lws *wsi, unsigned char *buf, size_t len,
 			    enum lws_write_protocol *wp)
 {
-	size_t olen = len;
-	int n;
-
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (wsi->http.lcs && (((*wp) & 0x1f) == LWS_WRITE_HTTP_FINAL ||
-			      ((*wp) & 0x1f) == LWS_WRITE_HTTP)) {
-		unsigned char mtubuf[1400 + LWS_PRE +
-				     LWS_HTTP_CHUNK_HDR_MAX_SIZE +
-				     LWS_HTTP_CHUNK_TRL_MAX_SIZE],
-			      *out = mtubuf + LWS_PRE +
-				     LWS_HTTP_CHUNK_HDR_MAX_SIZE;
-		size_t o = sizeof(mtubuf) - LWS_PRE -
-			   LWS_HTTP_CHUNK_HDR_MAX_SIZE -
-			   LWS_HTTP_CHUNK_TRL_MAX_SIZE;
-
-		n = lws_http_compression_transform(wsi, buf, len, wp, &out, &o);
-		if (n)
-			return n;
-
-		lwsl_info("%s: %p: transformed %d bytes to %d "
-			   "(wp 0x%x, more %d)\n", __func__, wsi, (int)len,
-			   (int)o, (int)*wp, wsi->http.comp_ctx.may_have_more);
-
-		if (!o)
-			return olen;
-
-		if (wsi->http.comp_ctx.chunking) {
-			char c[LWS_HTTP_CHUNK_HDR_MAX_SIZE + 2];
-			/*
-			 * this only needs dealing with on http/1.1 to allow
-			 * pipelining
-			 */
-			n = lws_snprintf(c, sizeof(c), "%X\x0d\x0a", (int)o);
-			lwsl_info("%s: chunk (%d) %s", __func__, (int)o, c);
-			out -= n;
-			o += n;
-			memcpy(out, c, n);
-			out[o++] = '\x0d';
-			out[o++] = '\x0a';
-
-			if (((*wp) & 0x1f) == LWS_WRITE_HTTP_FINAL) {
-				lwsl_info("%s: final chunk\n", __func__);
-				out[o++] = '0';
-				out[o++] = '\x0d';
-				out[o++] = '\x0a';
-				out[o++] = '\x0d';
-				out[o++] = '\x0a';
-			}
-		}
+#if 0
+	/* if not in a state to send stuff, then just send nothing */
 
-		buf = out;
-		len = o;
+	if ((lwsi_state(wsi) != LRS_RETURNED_CLOSE &&
+	     lwsi_state(wsi) != LRS_WAITING_TO_SEND_CLOSE &&
+	     lwsi_state(wsi) != LRS_AWAITING_CLOSE_ACK)) {
+		//assert(0);
+		lwsl_debug("binning %d %d\n", lwsi_state(wsi), *wp);
+		return 0;
 	}
 #endif
 
-	n = lws_issue_raw(wsi, (unsigned char *)buf, len);
-	if (n < 0)
-		return n;
-
-	/* hide there may have been compression */
-
-	return (int)olen;
+	return lws_issue_raw(wsi, (unsigned char *)buf, len);
 }
 
 static int
@@ -773,230 +666,12 @@ rops_destroy_role_h1(struct lws *wsi)
 		ah = ah->next;
 	}
 
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	lws_http_compression_destroy(wsi);
-#endif
-
 #ifdef LWS_ROLE_WS
 	lws_free_set_NULL(wsi->ws);
 #endif
 	return 0;
 }
 
-#if !defined(LWS_NO_SERVER)
-
-static int
-rops_adoption_bind_h1(struct lws *wsi, int type, const char *vh_prot_name)
-{
-	if (!(type & LWS_ADOPT_HTTP))
-		return 0; /* no match */
-
-
-	if (type & _LWS_ADOPT_FINISH) {
-		if (!lws_header_table_attach(wsi, 0))
-			lwsl_debug("Attached ah immediately\n");
-		else
-			lwsl_info("%s: waiting for ah\n", __func__);
-
-		return 1;
-	}
-
-	lws_role_transition(wsi, LWSIFR_SERVER, (type & LWS_ADOPT_ALLOW_SSL) ?
-			    LRS_SSL_INIT : LRS_HEADERS, &role_ops_h1);
-
-	if (!vh_prot_name)
-		wsi->protocol = &wsi->vhost->protocols[
-					wsi->vhost->default_protocol_index];
-
-	/* the transport is accepted... give him time to negotiate */
-	lws_set_timeout(wsi, PENDING_TIMEOUT_ESTABLISH_WITH_SERVER,
-			wsi->context->timeout_secs);
-
-	return 1; /* bound */
-}
-
-#endif
-
-#if !defined(LWS_NO_CLIENT)
-
-static const char * const http_methods[] = {
-	"GET", "POST", "OPTIONS", "PUT", "PATCH", "DELETE", "CONNECT"
-};
-
-static int
-rops_client_bind_h1(struct lws *wsi, const struct lws_client_connect_info *i)
-{
-	int n;
-
-	if (!i) {
-		/* we are finalizing an already-selected role */
-
-		/*
-		 * If we stay in http, assuming there wasn't already-set
-		 * external user_space, since we know our initial protocol
-		 * we can assign the user space now, otherwise do it after the
-		 * ws subprotocol negotiated
-		 */
-		if (!wsi->user_space && wsi->stash->method)
-			if (lws_ensure_user_space(wsi))
-				return 1;
-
-		 /*
-		  * For ws, default to http/1.1 only.  If i->alpn had been set
-		  * though, defer to whatever he has set in there (eg, "h2").
-		  *
-		  * The problem is he has to commit to h2 before he can find
-		  * out if the server has the SETTINGS for ws-over-h2 enabled;
-		  * if not then ws is not possible on that connection.  So we
-		  * only try h2 if he assertively said to use h2 alpn, otherwise
-		  * ws implies alpn restriction to h1.
-		  */
-		if (!wsi->stash->method && !wsi->stash->alpn) {
-			wsi->stash->alpn = lws_strdup("http/1.1");
-			if (!wsi->stash->alpn)
-				return 1;
-		}
-
-		/* if we went on the ah waiting list, it's ok, we can wait.
-		 *
-		 * When we do get the ah, now or later, he will end up at
-		 * lws_http_client_connect_via_info2().
-		 */
-		if (lws_header_table_attach(wsi, 0) < 0)
-			/*
-			 * if we failed here, the connection is already closed
-			 * and freed.
-			 */
-			return -1;
-
-		return 0;
-	}
-
-	/*
-	 * Clients that want to be h1, h2, or ws all start out as h1
-	 * (we don't yet know if the server supports h2 or ws)
-	 */
-
-	if (!i->method) { /* websockets */
-#if defined(LWS_ROLE_WS)
-		if (lws_create_client_ws_object(i, wsi))
-			goto fail_wsi;
-#else
-		lwsl_err("%s: ws role not configured\n", __func__);
-
-		goto fail_wsi;
-#endif
-		goto bind_h1;
-	}
-
-	/* if a recognized http method, bind to it */
-
-	for (n = 0; n < (int)LWS_ARRAY_SIZE(http_methods); n++)
-		if (!strcmp(i->method, http_methods[n]))
-			goto bind_h1;
-
-	/* other roles may bind to it */
-
-	return 0; /* no match */
-
-bind_h1:
-	/* assert the mode and union status (hdr) clearly */
-	lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED, &role_ops_h1);
-
-	return 1; /* matched */
-
-fail_wsi:
-	return -1;
-}
-#endif
-
-#if 0
-static int
-rops_perform_user_POLLOUT_h1(struct lws *wsi)
-{
-	volatile struct lws *vwsi = (volatile struct lws *)wsi;
-	int n;
-
-	/* priority 1: post compression-transform buffered output */
-
-	if (lws_has_buffered_out(wsi)) {
-		lwsl_debug("%s: completing partial\n", __func__);
-		if (lws_issue_raw(wsi, NULL, 0) < 0) {
-			lwsl_info("%s signalling to close\n", __func__);
-			return -1;
-		}
-		n = 0;
-		vwsi->leave_pollout_active = 1;
-		goto cleanup;
-	}
-
-	/* priority 2: pre compression-transform buffered output */
-
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (wsi->http.comp_ctx.buflist_comp ||
-	    wsi->http.comp_ctx.may_have_more) {
-		enum lws_write_protocol wp = LWS_WRITE_HTTP;
-
-		lwsl_info("%s: completing comp partial"
-			   "(buflist_comp %p, may %d)\n",
-			   __func__, wsi->http.comp_ctx.buflist_comp,
-			    wsi->http.comp_ctx.may_have_more);
-
-		if (rops_write_role_protocol_h1(wsi, NULL, 0, &wp) < 0) {
-			lwsl_info("%s signalling to close\n", __func__);
-			lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS,
-					   "comp write fail");
-		}
-		n = 0;
-		vwsi->leave_pollout_active = 1;
-		goto cleanup;
-	}
-#endif
-
-	/* priority 3: if no buffered out and waiting for that... */
-
-	if (lwsi_state(wsi) == LRS_FLUSHING_BEFORE_CLOSE) {
-		wsi->socket_is_permanently_unusable = 1;
-		return -1;
-	}
-
-	/* priority 4: user writeable callback */
-
-	vwsi = (volatile struct lws *)wsi;
-	vwsi->leave_pollout_active = 0;
-
-	n = lws_callback_as_writeable(wsi);
-
-cleanup:
-	vwsi->handling_pollout = 0;
-
-	if (vwsi->leave_pollout_active)
-		lws_change_pollfd(wsi, 0, LWS_POLLOUT);
-
-	return n;
-}
-#endif
-
-static int
-rops_close_kill_connection_h1(struct lws *wsi, enum lws_close_status reason)
-{
-#if defined(LWS_WITH_HTTP_PROXY)
-	struct lws *wsi_eff = lws_client_wsi_effective(wsi);
-
-	if (!wsi_eff->http.proxy_clientside)
-		return 0;
-
-	wsi_eff->http.proxy_clientside = 0;
-
-	if (user_callback_handle_rxflow(wsi_eff->protocol->callback, wsi_eff,
-					LWS_CALLBACK_COMPLETED_CLIENT_HTTP,
-					wsi_eff->user_space, NULL, 0))
-		return 0;
-#endif
-	return 0;
-}
-
-
 struct lws_role_ops role_ops_h1 = {
 	/* role name */			"h1",
 	/* alpn id */			"http/1.1",
@@ -1016,25 +691,11 @@ struct lws_role_ops role_ops_h1 = {
 	/* alpn_negotiated */		rops_alpn_negotiated_h1,
 	/* close_via_role_protocol */	NULL,
 	/* close_role */		NULL,
-	/* close_kill_connection */	rops_close_kill_connection_h1,
+	/* close_kill_connection */	NULL,
 	/* destroy_role */		rops_destroy_role_h1,
-#if !defined(LWS_NO_SERVER)
-	/* adoption_bind */		rops_adoption_bind_h1,
-#else
-					NULL,
-#endif
-#if !defined(LWS_NO_CLIENT)
-	/* client_bind */		rops_client_bind_h1,
-#else
-					NULL,
-#endif
 	/* writeable cb clnt, srv */	{ LWS_CALLBACK_CLIENT_HTTP_WRITEABLE,
 					  LWS_CALLBACK_HTTP_WRITEABLE },
 	/* close cb clnt, srv */	{ LWS_CALLBACK_CLOSED_CLIENT_HTTP,
 					  LWS_CALLBACK_CLOSED_HTTP },
-	/* protocol_bind cb c, srv */	{ LWS_CALLBACK_CLIENT_HTTP_BIND_PROTOCOL,
-					  LWS_CALLBACK_HTTP_BIND_PROTOCOL },
-	/* protocol_unbind cb c, srv */	{ LWS_CALLBACK_CLIENT_HTTP_DROP_PROTOCOL,
-					  LWS_CALLBACK_HTTP_DROP_PROTOCOL },
 	/* file_handle */		0,
 };
diff --git a/thirdparty/libwebsockets/lib/roles/h1/private.h b/thirdparty/libwebsockets/roles/h1/private.h
index 3f53954d33..3f53954d33 100644
--- a/thirdparty/libwebsockets/lib/roles/h1/private.h
+++ b/thirdparty/libwebsockets/roles/h1/private.h
diff --git a/thirdparty/libwebsockets/lib/roles/http/client/client-handshake.c b/thirdparty/libwebsockets/roles/http/client/client-handshake.c
index 6b4e98f346..0095c79a69 100644
--- a/thirdparty/libwebsockets/lib/roles/http/client/client-handshake.c
+++ b/thirdparty/libwebsockets/roles/http/client/client-handshake.c
@@ -37,14 +37,9 @@ lws_client_connect_2(struct lws *wsi)
 	ssize_t plen = 0;
 #endif
 	struct addrinfo *result;
-#if defined(LWS_WITH_UNIX_SOCK)
-	struct sockaddr_un sau;
-	char unix_skt = 0;
-#endif
 	const char *ads;
 	sockaddr46 sa46;
-	const struct sockaddr *psa;
-	int n, port = 0;
+	int n, port;
 	const char *cce = "", *iface;
 	const char *meth = NULL;
 #ifdef LWS_WITH_IPV6
@@ -131,7 +126,7 @@ lws_client_connect_2(struct lws *wsi)
 			}
 #endif
 
-			lwsl_info("applying %p to txn queue on %p state 0x%x\n",
+			lwsl_info("applying %p to txn queue on %p (wsistate 0x%x)\n",
 				wsi, w, w->wsistate);
 			/*
 			 * ...let's add ourselves to his transaction queue...
@@ -182,36 +177,12 @@ create_new_conn:
 	    lws_dll_is_null(&wsi->dll_client_transaction_queue) &&
 	    lws_dll_is_null(&wsi->dll_active_client_conns)) {
 		lws_vhost_lock(wsi->vhost);
-		/* caution... we will have to unpick this on oom4 path */
 		lws_dll_lws_add_front(&wsi->dll_active_client_conns,
 				      &wsi->vhost->dll_active_client_conns);
 		lws_vhost_unlock(wsi->vhost);
 	}
 
 	/*
-	 * unix socket destination?
-	 */
-
-	ads = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS);
-#if defined(LWS_WITH_UNIX_SOCK)
-	if (*ads == '+') {
-		ads++;
-		memset(&sau, 0, sizeof(sau));
-		sau.sun_family = AF_UNIX;
-		strncpy(sau.sun_path, ads, sizeof(sau.sun_path));
-		sau.sun_path[sizeof(sau.sun_path) - 1] = '\0';
-
-		lwsl_info("%s: Unix skt: %s\n", __func__, ads);
-
-		if (sau.sun_path[0] == '@')
-			sau.sun_path[0] = '\0';
-
-		unix_skt = 1;
-		goto ads_known;
-	}
-#endif
-
-	/*
 	 * start off allowing ipv6 on connection if vhost allows it
 	 */
 	wsi->ipv6 = LWS_IPV6_ENABLED(wsi->vhost);
@@ -270,9 +241,10 @@ create_new_conn:
 
 #ifdef LWS_WITH_IPV6
 	if (wsi->ipv6) {
-		struct sockaddr_in6 *sa6;
+		struct sockaddr_in6 *sa6 =
+				((struct sockaddr_in6 *)result->ai_addr);
 
-		if (n || !result) {
+		if (n) {
 			/* lws_getaddrinfo46 failed, there is no usable result */
 			lwsl_notice("%s: lws_getaddrinfo46 failed %d\n",
 					__func__, n);
@@ -280,8 +252,6 @@ create_new_conn:
 			goto oom4;
 		}
 
-		sa6 = ((struct sockaddr_in6 *)result->ai_addr);
-
 		memset(&sa46, 0, sizeof(sa46));
 
 		sa46.sa6.sin6_family = AF_INET6;
@@ -337,7 +307,7 @@ create_new_conn:
 		} else if (n == EAI_SYSTEM) {
 			struct hostent *host;
 
-			lwsl_info("ipv4 getaddrinfo err, try gethostbyname\n");
+			lwsl_info("getaddrinfo (ipv4) failed, trying gethostbyname\n");
 			host = gethostbyname(ads);
 			if (host) {
 				p = host->h_addr;
@@ -348,7 +318,7 @@ create_new_conn:
 			}
 #endif
 		} else {
-			lwsl_err("getaddrinfo failed: %d\n", n);
+			lwsl_err("getaddrinfo failed\n");
 			cce = "getaddrinfo failed";
 			goto oom4;
 		}
@@ -369,10 +339,6 @@ create_new_conn:
 	if (result)
 		freeaddrinfo(result);
 
-#if defined(LWS_WITH_UNIX_SOCK)
-ads_known:
-#endif
-
 	/* now we decided on ipv4 or ipv6, set the port */
 
 	if (!lws_socket_is_valid(wsi->desc.sockfd)) {
@@ -383,21 +349,12 @@ ads_known:
 			goto oom4;
 		}
 
-#if defined(LWS_WITH_UNIX_SOCK)
-		if (unix_skt) {
-			wsi->unix_skt = 1;
-			wsi->desc.sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
-		} else
-#endif
-		{
-
 #ifdef LWS_WITH_IPV6
 		if (wsi->ipv6)
 			wsi->desc.sockfd = socket(AF_INET6, SOCK_STREAM, 0);
 		else
 #endif
 			wsi->desc.sockfd = socket(AF_INET, SOCK_STREAM, 0);
-		}
 
 		if (!lws_socket_is_valid(wsi->desc.sockfd)) {
 			lwsl_warn("Unable to open socket\n");
@@ -405,12 +362,7 @@ ads_known:
 			goto oom4;
 		}
 
-		if (lws_plat_set_socket_options(wsi->vhost, wsi->desc.sockfd,
-#if defined(LWS_WITH_UNIX_SOCK)
-						unix_skt)) {
-#else
-						0)) {
-#endif
+		if (lws_plat_set_socket_options(wsi->vhost, wsi->desc.sockfd)) {
 			lwsl_err("Failed to set wsi socket options\n");
 			compatible_close(wsi->desc.sockfd);
 			cce = "set socket opts failed";
@@ -420,11 +372,7 @@ ads_known:
 		lwsi_set_state(wsi, LRS_WAITING_CONNECT);
 
 		if (wsi->context->event_loop_ops->accept)
-			if (wsi->context->event_loop_ops->accept(wsi)) {
-				compatible_close(wsi->desc.sockfd);
-				cce = "event loop accept failed";
-				goto oom4;
-			}
+			wsi->context->event_loop_ops->accept(wsi);
 
 		if (__insert_wsi_socket_into_fds(wsi->context, wsi)) {
 			compatible_close(wsi->desc.sockfd);
@@ -451,8 +399,7 @@ ads_known:
 		iface = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_IFACE);
 
 		if (iface) {
-			n = lws_socket_bind(wsi->vhost, wsi->desc.sockfd, 0,
-					    iface);
+			n = lws_socket_bind(wsi->vhost, wsi->desc.sockfd, 0, iface);
 			if (n < 0) {
 				cce = "unable to bind socket";
 				goto failed;
@@ -460,29 +407,18 @@ ads_known:
 		}
 	}
 
-#if defined(LWS_WITH_UNIX_SOCK)
-	if (unix_skt) {
-		psa = (const struct sockaddr *)&sau;
-		n = sizeof(sau);
+#ifdef LWS_WITH_IPV6
+	if (wsi->ipv6) {
+		sa46.sa6.sin6_port = htons(port);
+		n = sizeof(struct sockaddr_in6);
 	} else
 #endif
-
 	{
-#ifdef LWS_WITH_IPV6
-		if (wsi->ipv6) {
-			sa46.sa6.sin6_port = htons(port);
-			n = sizeof(struct sockaddr_in6);
-			psa = (const struct sockaddr *)&sa46;
-		} else
-#endif
-		{
-			sa46.sa4.sin_port = htons(port);
-			n = sizeof(struct sockaddr);
-			psa = (const struct sockaddr *)&sa46;
-		}
+		sa46.sa4.sin_port = htons(port);
+		n = sizeof(struct sockaddr);
 	}
 
-	if (connect(wsi->desc.sockfd, (const struct sockaddr *)psa, n) == -1 ||
+	if (connect(wsi->desc.sockfd, (const struct sockaddr *)&sa46, n) == -1 ||
 	    LWS_ERRNO == LWS_EISCONN) {
 		if (LWS_ERRNO == LWS_EALREADY ||
 		    LWS_ERRNO == LWS_EINPROGRESS ||
@@ -564,8 +500,7 @@ ads_known:
 			goto failed;
 		}
 
-		lws_set_timeout(wsi,
-				PENDING_TIMEOUT_AWAITING_SOCKS_GREETING_REPLY,
+		lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_SOCKS_GREETING_REPLY,
 				AWAITING_TIMEOUT);
 
 		lwsi_set_state(wsi, LRS_WAITING_SOCKS_GREETING_REPLY);
@@ -596,7 +531,7 @@ send_hs:
 		 * wait in the queue until it's possible to send them.
 		 */
 		lws_callback_on_writable(wsi_piggyback);
-		lwsl_info("%s: wsi %p: waiting to send hdrs (par state 0x%x)\n",
+		lwsl_info("%s: wsi %p: waiting to send headers (parent state %x)\n",
 			    __func__, wsi, lwsi_state(wsi_piggyback));
 	} else {
 		lwsl_info("%s: wsi %p: client creating own connection\n",
@@ -635,7 +570,7 @@ send_hs:
 	return wsi;
 
 oom4:
-	if (lwsi_role_client(wsi) /* && lwsi_state_est(wsi) */) {
+	if (lwsi_role_client(wsi) && lwsi_state_est(wsi)) {
 		wsi->protocol->callback(wsi,
 			LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
 			wsi->user_space, (void *)cce, strlen(cce));
@@ -644,21 +579,13 @@ oom4:
 	/* take care that we might be inserted in fds already */
 	if (wsi->position_in_fds_table != LWS_NO_FDS_POS)
 		goto failed1;
-
-	/*
-	 * We can't be an active client connection any more, if we thought
-	 * that was what we were going to be doing.  It should be if we are
-	 * failing by oom4 path, we are still called by
-	 * lws_client_connect_via_info() and will be returning NULL to that,
-	 * so nobody else should have had a chance to queue on us.
-	 */
-	{
-		struct lws_vhost *vhost = wsi->vhost;
-
-		lws_vhost_lock(vhost);
-		__lws_free_wsi(wsi);
-		lws_vhost_unlock(vhost);
-	}
+	lws_remove_from_timeout_list(wsi);
+#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
+	lws_header_table_detach(wsi, 0);
+#endif
+	lws_client_stash_destroy(wsi);
+	lws_free_set_NULL(wsi->client_hostname_copy);
+	lws_free(wsi);
 
 	return NULL;
 
@@ -676,8 +603,7 @@ failed1:
 #if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 
 /**
- * lws_client_reset() - retarget a connected wsi to start over with a new
- * 			connection (ie, redirect)
+ * lws_client_reset() - retarget a connected wsi to start over with a new connection (ie, redirect)
  *			this only works if still in HTTP, ie, not upgraded yet
  * wsi:		connection to reset
  * address:	network address of the new server
@@ -790,7 +716,7 @@ lws_client_reset(struct lws **pwsi, int ssl, const char *address, int port,
 	return *pwsi;
 }
 
-#if defined(LWS_WITH_HTTP_PROXY) && defined(LWS_WITH_HUBBUB)
+#ifdef LWS_WITH_HTTP_PROXY
 hubbub_error
 html_parser_cb(const hubbub_token *token, void *pw)
 {
@@ -920,8 +846,252 @@ html_parser_cb(const hubbub_token *token, void *pw)
 
 #endif
 
+char *
+lws_strdup(const char *s)
+{
+	char *d = lws_malloc(strlen(s) + 1, "strdup");
+
+	if (d)
+		strcpy(d, s);
+
+	return d;
+}
+
+void
+lws_client_stash_destroy(struct lws *wsi)
+{
+	if (!wsi || !wsi->stash)
+		return;
+
+	lws_free_set_NULL(wsi->stash->address);
+	lws_free_set_NULL(wsi->stash->path);
+	lws_free_set_NULL(wsi->stash->host);
+	lws_free_set_NULL(wsi->stash->origin);
+	lws_free_set_NULL(wsi->stash->protocol);
+	lws_free_set_NULL(wsi->stash->method);
+	lws_free_set_NULL(wsi->stash->iface);
+	lws_free_set_NULL(wsi->stash->alpn);
+
+	lws_free_set_NULL(wsi->stash);
+}
+
+LWS_VISIBLE struct lws *
+lws_client_connect_via_info(struct lws_client_connect_info *i)
+{
+	struct lws *wsi;
+	const struct lws_protocols *p;
+	const char *local = i->protocol;
+
+	if (i->context->requested_kill)
+		return NULL;
+
+	if (!i->context->protocol_init_done)
+		lws_protocol_init(i->context);
+	/*
+	 * If we have .local_protocol_name, use it to select the
+	 * local protocol handler to bind to.  Otherwise use .protocol if
+	 * http[s].
+	 */
+	if (i->local_protocol_name)
+		local = i->local_protocol_name;
+
+	wsi = lws_zalloc(sizeof(struct lws), "client wsi");
+	if (wsi == NULL)
+		goto bail;
+
+	wsi->context = i->context;
+#if defined(LWS_ROLE_H1)
+	/* assert the mode and union status (hdr) clearly */
+	lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED, &role_ops_h1);
+#else
+	lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED, &role_ops_raw_skt);
+#endif
+	wsi->desc.sockfd = LWS_SOCK_INVALID;
+
+	/* 1) fill up the wsi with stuff from the connect_info as far as it
+	 * can go.  It's because not only is our connection async, we might
+	 * not even be able to get ahold of an ah at this point.
+	 */
+
+	if (!i->method) /* ie, ws */
+#if defined(LWS_ROLE_WS)
+		if (lws_create_client_ws_object(i, wsi))
+			return NULL;
+#else
+		return NULL;
+#endif
+
+	wsi->user_space = NULL;
+	wsi->pending_timeout = NO_PENDING_TIMEOUT;
+	wsi->position_in_fds_table = LWS_NO_FDS_POS;
+	wsi->c_port = i->port;
+	wsi->vhost = i->vhost;
+	if (!wsi->vhost)
+		wsi->vhost = i->context->vhost_list;
+
+	if (!wsi->vhost) {
+		lwsl_err("At least one vhost in the context is required\n");
+
+		goto bail;
+	}
+
+	wsi->protocol = &wsi->vhost->protocols[0];
+	wsi->client_pipeline = !!(i->ssl_connection & LCCSCF_PIPELINE);
+
+	/* reasonable place to start */
+	lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED,
+#if defined(LWS_ROLE_H1)
+			&role_ops_h1);
+#else
+	&role_ops_raw_skt);
+#endif
+
+	/*
+	 * 1) for http[s] connection, allow protocol selection by name
+	 * 2) for ws[s], if local_protocol_name given also use it for
+	 *    local protocol binding... this defeats the server
+	 *    protocol negotiation if so
+	 *
+	 * Otherwise leave at protocols[0]... the server will tell us
+	 * which protocol we are associated with since we can give it a
+	 * list.
+	 */
+	if (/*(i->method || i->local_protocol_name) && */local) {
+		lwsl_info("binding to %s\n", local);
+		p = lws_vhost_name_to_protocol(wsi->vhost, local);
+		if (p)
+			wsi->protocol = p;
+	}
+
+	if (wsi && !wsi->user_space && i->userdata) {
+		wsi->user_space_externally_allocated = 1;
+		wsi->user_space = i->userdata;
+	} else
+		/* if we stay in http, we can assign the user space now,
+		 * otherwise do it after the protocol negotiated
+		 */
+		if (i->method)
+			if (lws_ensure_user_space(wsi))
+				goto bail;
+
+#if defined(LWS_WITH_TLS)
+	wsi->tls.use_ssl = i->ssl_connection;
+#else
+	if (i->ssl_connection & LCCSCF_USE_SSL) {
+		lwsl_err("libwebsockets not configured for ssl\n");
+		goto bail;
+	}
+#endif
+
+	/* 2) stash the things from connect_info that we can't process without
+	 * an ah.  Because if no ah, we will go on the ah waiting list and
+	 * process those things later (after the connect_info and maybe the
+	 * things pointed to have gone out of scope.
+	 */
+
+	wsi->stash = lws_zalloc(sizeof(*wsi->stash), "client stash");
+	if (!wsi->stash) {
+		lwsl_err("%s: OOM\n", __func__);
+		goto bail1;
+	}
+
+	wsi->stash->address = lws_strdup(i->address);
+	wsi->stash->path = lws_strdup(i->path);
+	wsi->stash->host = lws_strdup(i->host);
+
+	if (!wsi->stash->address || !wsi->stash->path || !wsi->stash->host)
+		goto bail1;
+
+	if (i->origin) {
+		wsi->stash->origin = lws_strdup(i->origin);
+		if (!wsi->stash->origin)
+			goto bail1;
+	}
+	if (i->protocol) {
+		wsi->stash->protocol = lws_strdup(i->protocol);
+		if (!wsi->stash->protocol)
+			goto bail1;
+	}
+	if (i->method) {
+		wsi->stash->method = lws_strdup(i->method);
+		if (!wsi->stash->method)
+			goto bail1;
+	}
+	if (i->iface) {
+		wsi->stash->iface = lws_strdup(i->iface);
+		if (!wsi->stash->iface)
+			goto bail1;
+	}
+	 /*
+	  * For ws, default to http/1.1 only.  If i->alpn is set, defer to
+	  * whatever he has set in there (eg, "h2").
+	  *
+	  * The problem is he has to commit to h2 before he can find out if the
+	  * server has the SETTINGS for ws-over-h2 enabled; if not then ws is
+	  * not possible on that connection.  So we only try it if he
+	  * assertively said to use h2 alpn.
+	  */
+	if (!i->method && !i->alpn) {
+		wsi->stash->alpn = lws_strdup("http/1.1");
+		if (!wsi->stash->alpn)
+			goto bail1;
+	} else
+		if (i->alpn) {
+			wsi->stash->alpn = lws_strdup(i->alpn);
+			if (!wsi->stash->alpn)
+				goto bail1;
+		}
+
+	if (i->pwsi)
+		*i->pwsi = wsi;
+
+#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
+	/* if we went on the waiting list, no probs just return the wsi
+	 * when we get the ah, now or later, he will call
+	 * lws_client_connect_via_info2() below.
+	 */
+	if (lws_header_table_attach(wsi, 0) < 0) {
+		/*
+		 * if we failed here, the connection is already closed
+		 * and freed.
+		 */
+		goto bail2;
+	}
+
+#endif
+
+	if (i->parent_wsi) {
+		lwsl_info("%s: created child %p of parent %p\n", __func__,
+				wsi, i->parent_wsi);
+		wsi->parent = i->parent_wsi;
+		wsi->sibling_list = i->parent_wsi->child_list;
+		i->parent_wsi->child_list = wsi;
+	}
+#ifdef LWS_WITH_HTTP_PROXY
+	if (i->uri_replace_to)
+		wsi->http.rw = lws_rewrite_create(wsi, html_parser_cb,
+					     i->uri_replace_from,
+					     i->uri_replace_to);
+#endif
+
+	return wsi;
+
+bail1:
+	lws_client_stash_destroy(wsi);
+
+bail:
+	lws_free(wsi);
+#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
+bail2:
+#endif
+	if (i->pwsi)
+		*i->pwsi = NULL;
+
+	return NULL;
+}
+
 struct lws *
-lws_http_client_connect_via_info2(struct lws *wsi)
+lws_client_connect_via_info2(struct lws *wsi)
 {
 	struct client_info_stash *stash = wsi->stash;
 
@@ -986,6 +1156,55 @@ bail1:
 	return NULL;
 }
 
+LWS_VISIBLE struct lws *
+lws_client_connect_extended(struct lws_context *context, const char *address,
+			    int port, int ssl_connection, const char *path,
+			    const char *host, const char *origin,
+			    const char *protocol, int ietf_version_or_minus_one,
+			    void *userdata)
+{
+	struct lws_client_connect_info i;
+
+	memset(&i, 0, sizeof(i));
+
+	i.context = context;
+	i.address = address;
+	i.port = port;
+	i.ssl_connection = ssl_connection;
+	i.path = path;
+	i.host = host;
+	i.origin = origin;
+	i.protocol = protocol;
+	i.ietf_version_or_minus_one = ietf_version_or_minus_one;
+	i.userdata = userdata;
+
+	return lws_client_connect_via_info(&i);
+}
+
+LWS_VISIBLE struct lws *
+lws_client_connect(struct lws_context *context, const char *address,
+			    int port, int ssl_connection, const char *path,
+			    const char *host, const char *origin,
+			    const char *protocol, int ietf_version_or_minus_one)
+{
+	struct lws_client_connect_info i;
+
+	memset(&i, 0, sizeof(i));
+
+	i.context = context;
+	i.address = address;
+	i.port = port;
+	i.ssl_connection = ssl_connection;
+	i.path = path;
+	i.host = host;
+	i.origin = origin;
+	i.protocol = protocol;
+	i.ietf_version_or_minus_one = ietf_version_or_minus_one;
+	i.userdata = NULL;
+
+	return lws_client_connect_via_info(&i);
+}
+
 #if defined(LWS_WITH_SOCKS5)
 void socks_generate_msg(struct lws *wsi, enum socks_msg_type type,
 			ssize_t *msg_len)
@@ -1023,9 +1242,8 @@ void socks_generate_msg(struct lws *wsi, enum socks_msg_type type,
 		/* length of the password */
 		pt->serv_buf[len++] = passwd_len;
 		/* password */
-		lws_strncpy((char *)&pt->serv_buf[len],
-			    wsi->vhost->socks_password,
-			    context->pt_serv_buf_size - len + 1);
+		lws_strncpy((char *)&pt->serv_buf[len], wsi->vhost->socks_password,
+			context->pt_serv_buf_size - len + 1);
 		len += passwd_len;
 		break;
 
diff --git a/thirdparty/libwebsockets/lib/roles/http/client/client.c b/thirdparty/libwebsockets/roles/http/client/client.c
index 1d6f13dcf8..5645fa2b7a 100644
--- a/thirdparty/libwebsockets/lib/roles/http/client/client.c
+++ b/thirdparty/libwebsockets/roles/http/client/client.c
@@ -1,7 +1,7 @@
 /*
  * libwebsockets - lib/client/client.c
  *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -48,7 +48,7 @@ lws_client_wsi_effective(struct lws *wsi)
 	} lws_end_foreach_dll_safe(d, d1);
 
 	return lws_container_of(tail, struct lws,
-				dll_client_transaction_queue);
+				  dll_client_transaction_queue);
 }
 
 /*
@@ -66,7 +66,7 @@ _lws_client_wsi_master(struct lws *wsi)
 	d = wsi->dll_client_transaction_queue.prev;
 	while (d) {
 		wsi_eff = lws_container_of(d, struct lws,
-					   dll_client_transaction_queue_head);
+					dll_client_transaction_queue_head);
 
 		d = d->prev;
 	}
@@ -111,12 +111,11 @@ lws_client_socket_service(struct lws *wsi, struct lws_pollfd *pollfd,
 		 */
 		lws_vhost_lock(wsi->vhost);
 		lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
-				  wsi->dll_client_transaction_queue_head.next) {
+					   wsi->dll_client_transaction_queue_head.next) {
 			struct lws *w = lws_container_of(d, struct lws,
 						  dll_client_transaction_queue);
 
-			lwsl_debug("%s: %p states 0x%x\n", __func__, w,
-				   w->wsistate);
+			lwsl_debug("%s: %p states 0x%x\n", __func__, w, w->wsistate);
 			if (lwsi_state(w) == LRS_H1C_ISSUE_HANDSHAKE2)
 				wfound = w;
 		} lws_end_foreach_dll_safe(d, d1);
@@ -209,8 +208,7 @@ lws_client_socket_service(struct lws *wsi, struct lws_pollfd *pollfd,
 
 		case LRS_WAITING_SOCKS_AUTH_REPLY:
 			if (pt->serv_buf[0] != SOCKS_SUBNEGOTIATION_VERSION_1 ||
-			    pt->serv_buf[1] !=
-					    SOCKS_SUBNEGOTIATION_STATUS_SUCCESS)
+			    pt->serv_buf[1] != SOCKS_SUBNEGOTIATION_STATUS_SUCCESS)
 				goto socks_reply_fail;
 
 			lwsl_client("SOCKS password OK, sending connect\n");
@@ -245,8 +243,8 @@ socks_reply_fail:
 			/* free stash since we are done with it */
 			lws_client_stash_destroy(wsi);
 			if (lws_hdr_simple_create(wsi,
-						 _WSI_TOKEN_CLIENT_PEER_ADDRESS,
-					       wsi->vhost->socks_proxy_address))
+						  _WSI_TOKEN_CLIENT_PEER_ADDRESS,
+						  wsi->vhost->socks_proxy_address))
 				goto bail3;
 
 			wsi->c_port = wsi->vhost->socks_proxy_port;
@@ -354,9 +352,7 @@ start_ws_handshake:
 			 * So this is it, we are an h2 master client connection
 			 * now, not an h1 client connection.
 			 */
-#if defined (LWS_WITH_TLS)
 			lws_tls_server_conn_alpn(wsi);
-#endif
 
 			/* send the H2 preface to legitimize the connection */
 			if (lws_h2_issue_preface(wsi)) {
@@ -381,8 +377,7 @@ start_ws_handshake:
 				return 0;
 
 			lwsl_err("Failed to generate handshake for client\n");
-			lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS,
-					   "chs");
+			lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "chs");
 			return 0;
 		}
 
@@ -390,9 +385,8 @@ start_ws_handshake:
 		lws_latency_pre(context, wsi);
 
 		w = _lws_client_wsi_master(wsi);
-		lwsl_info("%s: HANDSHAKE2: %p: sending headers on %p "
-			  "(wsistate 0x%x 0x%x)\n", __func__, wsi, w,
-			  wsi->wsistate, w->wsistate);
+		lwsl_info("%s: HANDSHAKE2: %p: sending headers on %p (wsistate 0x%x 0x%x)\n",
+				__func__, wsi, w, wsi->wsistate, w->wsistate);
 
 		n = lws_ssl_capable_write(w, (unsigned char *)sb, (int)(p - sb));
 		lws_latency(context, wsi, "send lws_issue_raw", n,
@@ -400,8 +394,7 @@ start_ws_handshake:
 		switch (n) {
 		case LWS_SSL_CAPABLE_ERROR:
 			lwsl_debug("ERROR writing to client socket\n");
-			lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS,
-					   "cws");
+			lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "cws");
 			return 0;
 		case LWS_SSL_CAPABLE_MORE_SERVICE:
 			lws_callback_on_writable(wsi);
@@ -426,7 +419,7 @@ start_ws_handshake:
 #if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
 			w->http.ah->parser_state = WSI_TOKEN_NAME_PART;
 			w->http.ah->lextable_pos = 0;
-			/* If we're (re)starting on hdr, need other implied init */
+			/* If we're (re)starting on headers, need other implied init */
 			wsi->http.ah->ues = URIES_IDLE;
 #endif
 		}
@@ -556,12 +549,11 @@ lws_http_transaction_completed_client(struct lws *wsi)
 {
 	struct lws *wsi_eff = lws_client_wsi_effective(wsi);
 
-	lwsl_info("%s: wsi: %p, wsi_eff: %p (%s)\n", __func__, wsi, wsi_eff,
-		    wsi_eff->protocol->name);
+	lwsl_info("%s: wsi: %p, wsi_eff: %p\n", __func__, wsi, wsi_eff);
 
-	if (user_callback_handle_rxflow(wsi_eff->protocol->callback, wsi_eff,
-					LWS_CALLBACK_COMPLETED_CLIENT_HTTP,
-					wsi_eff->user_space, NULL, 0)) {
+	if (user_callback_handle_rxflow(wsi_eff->protocol->callback,
+			wsi_eff, LWS_CALLBACK_COMPLETED_CLIENT_HTTP,
+			wsi_eff->user_space, NULL, 0)) {
 		lwsl_debug("%s: Completed call returned nonzero (role 0x%x)\n",
 						__func__, lwsi_role(wsi_eff));
 		return -1;
@@ -634,8 +626,7 @@ lws_http_transaction_completed_client(struct lws *wsi)
 	/* If we're (re)starting on headers, need other implied init */
 	wsi->http.ah->ues = URIES_IDLE;
 
-	lwsl_info("%s: %p: new queued transaction as %p\n", __func__, wsi,
-		  wsi_eff);
+	lwsl_info("%s: %p: new queued transaction as %p\n", __func__, wsi, wsi_eff);
 	lws_callback_on_writable(wsi);
 
 	return 0;
@@ -681,7 +672,7 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 	int n, port = 0, ssl = 0;
 	int close_reason = LWS_CLOSE_STATUS_PROTOCOL_ERR;
 	const char *prot, *ads = NULL, *path, *cce = NULL;
-	struct allocated_headers *ah;
+	struct allocated_headers *ah = NULL;
 	struct lws *w = lws_client_wsi_effective(wsi);
 	char *p, *q;
 	char new_path[300];
@@ -694,8 +685,7 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 		 */
 #if defined(LWS_ROLE_H2)
 		if (wsi->client_h2_alpn || wsi->client_h2_substream) {
-			lwsl_debug("%s: %p: transitioning to h2 client\n",
-				   __func__, wsi);
+			lwsl_debug("%s: %p: transitioning to h2 client\n", __func__, wsi);
 			lws_role_transition(wsi, LWSIFR_CLIENT,
 					    LRS_ESTABLISHED, &role_ops_h2);
 		} else
@@ -703,8 +693,7 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 		{
 #if defined(LWS_ROLE_H1)
 			{
-			lwsl_debug("%s: %p: transitioning to h1 client\n",
-				   __func__, wsi);
+			lwsl_debug("%s: %p: transitioning to h1 client\n", __func__, wsi);
 			lws_role_transition(wsi, LWSIFR_CLIENT,
 					    LRS_ESTABLISHED, &role_ops_h1);
 			}
@@ -730,7 +719,7 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 	 * set-cookie:.test=LWS_1456736240_336776_COOKIE;Max-Age=360000
 	 */
 
-	wsi->http.conn_type = HTTP_CONNECTION_KEEP_ALIVE;
+	wsi->http.connection_type = HTTP_CONNECTION_KEEP_ALIVE;
 	if (!wsi->client_h2_substream) {
 		p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP);
 		if (wsi->do_ws && !p) {
@@ -740,7 +729,7 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 		}
 		if (!p) {
 			p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP1_0);
-			wsi->http.conn_type = HTTP_CONNECTION_CLOSE;
+			wsi->http.connection_type = HTTP_CONNECTION_CLOSE;
 		}
 		if (!p) {
 			cce = "HS: URI missing";
@@ -837,9 +826,8 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 
 		/* if h1 KA is allowed, enable the queued pipeline guys */
 
-		if (!wsi->client_h2_alpn && !wsi->client_h2_substream &&
-		    w == wsi) { /* ie, coming to this for the first time */
-			if (wsi->http.conn_type == HTTP_CONNECTION_KEEP_ALIVE)
+		if (!wsi->client_h2_alpn && !wsi->client_h2_substream && w == wsi) { /* ie, coming to this for the first time */
+			if (wsi->http.connection_type == HTTP_CONNECTION_KEEP_ALIVE)
 				wsi->keepalive_active = 1;
 			else {
 				/*
@@ -859,16 +847,13 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 				wsi->keepalive_rejected = 1;
 
 				lws_vhost_lock(wsi->vhost);
-				lws_start_foreach_dll_safe(struct lws_dll_lws *,
-							   d, d1,
-				  wsi->dll_client_transaction_queue_head.next) {
-					struct lws *ww = lws_container_of(d,
-						struct lws,
-						dll_client_transaction_queue);
+				lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
+							   wsi->dll_client_transaction_queue_head.next) {
+					struct lws *ww = lws_container_of(d, struct lws,
+								  dll_client_transaction_queue);
 
 					/* remove him from our queue */
-					lws_dll_lws_remove(
-					     &ww->dll_client_transaction_queue);
+					lws_dll_lws_remove(&ww->dll_client_transaction_queue);
 					/* give up on pipelining */
 					ww->client_pipeline = 0;
 
@@ -896,7 +881,7 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 			if (!strncmp(lws_hdr_simple_ptr(wsi,
 						WSI_TOKEN_HTTP_CONTENT_TYPE),
 						"text/html", 9))
-				wsi->http.perform_rewrite = 0;
+				wsi->http.perform_rewrite = 1;
 		}
 #endif
 
@@ -930,7 +915,8 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 					wsi->http.rx_content_length;
 		} else /* can't do 1.1 without a content length or chunked */
 			if (!wsi->chunked)
-				wsi->http.conn_type = HTTP_CONNECTION_CLOSE;
+				wsi->http.connection_type =
+							HTTP_CONNECTION_CLOSE;
 
 		/*
 		 * we seem to be good to go, give client last chance to check
@@ -968,15 +954,6 @@ lws_client_interpret_server_handshake(struct lws *wsi)
 
 		lwsl_info("%s: client connection up\n", __func__);
 
-		/*
-		 * Did we get a response from the server with an explicit
-		 * content-length of zero?  If so, this transaction is already
-		 * completed at the end of the header processing...
-		 */
-		if (lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_CONTENT_LENGTH) &&
-		    !wsi->http.rx_content_length)
-		        return !!lws_http_transaction_completed_client(wsi);
-
 		return 0;
 	}
 
@@ -1006,9 +983,7 @@ bail2:
 	}
 	wsi->already_did_cce = 1;
 
-	lwsl_info("closing connection (prot %s) "
-		  "due to bail2 connection error: %s\n", wsi->protocol ?
-				  wsi->protocol->name : "unknown", cce);
+	lwsl_info("closing connection due to bail2 connection error\n");
 
 	/* closing will free up his parsing allocations */
 	lws_close_free_wsi(wsi, close_reason, "c hs interp");
@@ -1048,7 +1023,7 @@ lws_generate_client_handshake(struct lws *wsi, char *pkt)
 				return NULL;
 			}
 
-			lws_bind_protocol(wsi, pr, __func__);
+			lws_bind_protocol(wsi, pr);
 		}
 
 		if ((wsi->protocol->callback)(wsi, LWS_CALLBACK_RAW_ADOPT,
@@ -1095,22 +1070,16 @@ lws_generate_client_handshake(struct lws *wsi, char *pkt)
 						     _WSI_TOKEN_CLIENT_ORIGIN));
 	}
 #if defined(LWS_ROLE_WS)
-	if (wsi->do_ws) {
-		const char *conn1 = "";
-		if (!wsi->client_pipeline)
-			conn1 = "close, ";
-		p = lws_generate_client_ws_handshake(wsi, p, conn1);
-	} else
+	if (wsi->do_ws)
+		p = lws_generate_client_ws_handshake(wsi, p);
 #endif
-		if (!wsi->client_pipeline)
-			p += sprintf(p, "connection: close\x0d\x0a");
 
 	/* give userland a chance to append, eg, cookies */
 
 	if (wsi->protocol->callback(wsi,
-			LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER,
-			wsi->user_space, &p,
-			(pkt + wsi->context->pt_serv_buf_size) - p - 12))
+				LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER,
+				wsi->user_space, &p,
+				(pkt + wsi->context->pt_serv_buf_size) - p - 12))
 		return NULL;
 
 	p += sprintf(p, "\x0d\x0a");
@@ -1134,11 +1103,14 @@ lws_http_client_read(struct lws *wsi, char **buf, int *len)
 	lws_change_pollfd(wsi, 0, LWS_POLLIN);
 
 	if (rlen == LWS_SSL_CAPABLE_ERROR) {
-		lwsl_debug("%s: SSL capable error\n", __func__);
+		lwsl_notice("%s: SSL capable error\n", __func__);
 		return -1;
 	}
 
-	if (rlen <= 0)
+	if (rlen == 0)
+		return -1;
+
+	if (rlen < 0)
 		return 0;
 
 	*len = rlen;
@@ -1158,7 +1130,7 @@ spin_chunks:
 			}
 			n = char_to_hex((*buf)[0]);
 			if (n < 0) {
-				lwsl_info("%s: chunking failure\n", __func__);
+				lwsl_debug("chunking failure\n");
 				return -1;
 			}
 			wsi->chunk_remaining <<= 4;
@@ -1166,7 +1138,7 @@ spin_chunks:
 			break;
 		case ELCP_CR:
 			if ((*buf)[0] != '\x0a') {
-				lwsl_info("%s: chunking failure\n", __func__);
+				lwsl_debug("chunking failure\n");
 				return -1;
 			}
 			wsi->chunk_parser = ELCP_CONTENT;
@@ -1181,7 +1153,7 @@ spin_chunks:
 
 		case ELCP_POST_CR:
 			if ((*buf)[0] != '\x0d') {
-				lwsl_info("%s: chunking failure\n", __func__);
+				lwsl_debug("chunking failure\n");
 
 				return -1;
 			}
@@ -1190,11 +1162,8 @@ spin_chunks:
 			break;
 
 		case ELCP_POST_LF:
-			if ((*buf)[0] != '\x0a') {
-				lwsl_info("%s: chunking failure\n", __func__);
-
+			if ((*buf)[0] != '\x0a')
 				return -1;
-			}
 
 			wsi->chunk_parser = ELCP_HEX;
 			wsi->chunk_remaining = 0;
@@ -1217,7 +1186,7 @@ spin_chunks:
 	    wsi->chunk_remaining < n)
 		n = wsi->chunk_remaining;
 
-#if defined(LWS_WITH_HTTP_PROXY) && defined(LWS_WITH_HUBBUB)
+#ifdef LWS_WITH_HTTP_PROXY
 	/* hubbub */
 	if (wsi->http.perform_rewrite)
 		lws_rewrite_parse(wsi->http.rw, (unsigned char *)*buf, n);
@@ -1229,7 +1198,7 @@ spin_chunks:
 		if (user_callback_handle_rxflow(wsi_eff->protocol->callback,
 				wsi_eff, LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ,
 				wsi_eff->user_space, *buf, n)) {
-			lwsl_info("%s: RECEIVE_CLIENT_HTTP_READ returned -1\n",
+			lwsl_debug("%s: RECEIVE_CLIENT_HTTP_READ returned -1\n",
 				   __func__);
 
 			return -1;
diff --git a/thirdparty/libwebsockets/lib/roles/http/header.c b/thirdparty/libwebsockets/roles/http/header.c
index 448c5a8b5c..dbcf27cbd1 100644
--- a/thirdparty/libwebsockets/lib/roles/http/header.c
+++ b/thirdparty/libwebsockets/roles/http/header.c
@@ -1,7 +1,7 @@
 /*
  * libwebsockets - small server side websockets and web server implementation
  *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -116,10 +116,9 @@ lws_add_http_header_by_token(struct lws *wsi, enum lws_token_indexes token,
 	return lws_add_http_header_by_name(wsi, name, value, length, p, end);
 }
 
-int
-lws_add_http_header_content_length(struct lws *wsi,
-				   lws_filepos_t content_length,
-				   unsigned char **p, unsigned char *end)
+int lws_add_http_header_content_length(struct lws *wsi,
+				       lws_filepos_t content_length,
+				       unsigned char **p, unsigned char *end)
 {
 	char b[24];
 	int n;
@@ -142,10 +141,6 @@ lws_add_http_common_headers(struct lws *wsi, unsigned int code,
 			    const char *content_type, lws_filepos_t content_len,
 			    unsigned char **p, unsigned char *end)
 {
-	const char *ka[] = { "close", "keep-alive" };
-	int types[] = { HTTP_CONNECTION_CLOSE, HTTP_CONNECTION_KEEP_ALIVE },
-			t = 0;
-
 	if (lws_add_http_header_status(wsi, code, p, end))
 		return 1;
 
@@ -154,67 +149,22 @@ lws_add_http_common_headers(struct lws *wsi, unsigned int code,
 		    			(int)strlen(content_type), p, end))
 		return 1;
 
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (!wsi->http.lcs &&
-	    (!strncmp(content_type, "text/", 5) ||
-	     !strcmp(content_type, "application/javascript") ||
-	     !strcmp(content_type, "image/svg+xml")))
-		lws_http_compression_apply(wsi, NULL, p, end, 0);
-#endif
-
-	/*
-	 * if we decided to compress it, we don't know the content length...
-	 * the compressed data will go out chunked on h1
-	 */
-	if (
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	    !wsi->http.lcs &&
-#endif
-	     content_len != LWS_ILLEGAL_HTTP_CONTENT_LEN) {
-		if (lws_add_http_header_content_length(wsi, content_len,
-						       p, end))
+	if (content_len != LWS_ILLEGAL_HTTP_CONTENT_LEN) {
+		if (lws_add_http_header_content_length(wsi, content_len, p, end))
 			return 1;
 	} else {
-		/* there was no length... it normally means CONNECTION_CLOSE */
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-
-		if (!wsi->http2_substream && wsi->http.lcs) {
-			/* so...
-			 *  - h1 connection
-			 *  - http compression transform active
-			 *  - did not send content length
-			 *
-			 * then mark as chunked...
-			 */
-			wsi->http.comp_ctx.chunking = 1;
-			if (lws_add_http_header_by_token(wsi,
-					WSI_TOKEN_HTTP_TRANSFER_ENCODING,
-					(unsigned char *)"chunked", 7, p, end))
-				return -1;
-
-			/* ... but h1 compression is chunked, if active we can
-			 * still pipeline
-			 */
-			if (wsi->http.lcs &&
-			    wsi->http.conn_type == HTTP_CONNECTION_KEEP_ALIVE)
-				t = 1;
-		}
-#endif
-		if (!wsi->http2_substream) {
-			if (lws_add_http_header_by_token(wsi,
-						 WSI_TOKEN_CONNECTION,
-						 (unsigned char *)ka[t],
-						 (int)strlen(ka[t]), p, end))
-				return 1;
-
-			wsi->http.conn_type = types[t];
-		}
+		if (lws_add_http_header_by_token(wsi, WSI_TOKEN_CONNECTION,
+						 (unsigned char *)"close", 5,
+						 p, end))
+			return 1;
+
+		wsi->http.connection_type = HTTP_CONNECTION_CLOSE;
 	}
 
 	return 0;
 }
 
-static const char * const err400[] = {
+STORE_IN_ROM static const char * const err400[] = {
 	"Bad Request",
 	"Unauthorized",
 	"Payment Required",
@@ -235,7 +185,7 @@ static const char * const err400[] = {
 	"Expectation Failed"
 };
 
-static const char * const err500[] = {
+STORE_IN_ROM static const char * const err500[] = {
 	"Internal Server Error",
 	"Not Implemented",
 	"Bad Gateway",
@@ -244,31 +194,11 @@ static const char * const err500[] = {
 	"HTTP Version Not Supported"
 };
 
-/* security best practices from Mozilla Observatory */
-
-static const
-struct lws_protocol_vhost_options pvo_hsbph[] = {{
-	NULL, NULL, "referrer-policy:", "no-referrer"
-}, {
-	&pvo_hsbph[0], NULL, "x-frame-options:", "deny"
-}, {
-	&pvo_hsbph[1], NULL, "x-xss-protection:", "1; mode=block"
-}, {
-	&pvo_hsbph[2], NULL, "x-content-type-options:", "nosniff"
-}, {
-	&pvo_hsbph[3], NULL, "content-security-policy:",
-	"default-src 'none'; img-src 'self' data: ; "
-		"script-src 'self'; font-src 'self'; "
-		"style-src 'self'; connect-src 'self'; "
-		"frame-ancestors 'none'; base-uri 'none';"
-		"form-action 'self';"
-}};
-
 int
 lws_add_http_header_status(struct lws *wsi, unsigned int _code,
 			   unsigned char **p, unsigned char *end)
 {
-	static const char * const hver[] = {
+	STORE_IN_ROM static const char * const hver[] = {
 		"HTTP/1.0", "HTTP/1.1", "HTTP/2"
 	};
 	const struct lws_protocol_vhost_options *headers;
@@ -316,7 +246,6 @@ lws_add_http_header_status(struct lws *wsi, unsigned int _code,
 						end))
 			return 1;
 	}
-
 	headers = wsi->vhost->headers;
 	while (headers) {
 		if (lws_add_http_header_by_name(wsi,
@@ -328,20 +257,6 @@ lws_add_http_header_status(struct lws *wsi, unsigned int _code,
 		headers = headers->next;
 	}
 
-	if (wsi->vhost->options &
-	    LWS_SERVER_OPTION_HTTP_HEADERS_SECURITY_BEST_PRACTICES_ENFORCE) {
-		headers = &pvo_hsbph[LWS_ARRAY_SIZE(pvo_hsbph) - 1];
-		while (headers) {
-			if (lws_add_http_header_by_name(wsi,
-					(const unsigned char *)headers->name,
-					(unsigned char *)headers->value,
-					(int)strlen(headers->value), p, end))
-				return 1;
-
-			headers = headers->next;
-		}
-	}
-
 	if (wsi->context->server_string &&
 	    !(_code & LWSAHH_FLAG_NO_SERVER_NAME))
 		if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_SERVER,
@@ -356,12 +271,6 @@ lws_add_http_header_status(struct lws *wsi, unsigned int _code,
 				"includeSubDomains", 36, p, end))
 			return 1;
 
-	if (*p >= (end - 2)) {
-		lwsl_err("%s: reached end of buffer\n", __func__);
-
-		return 1;
-	}
-
 	return 0;
 }
 
@@ -374,7 +283,6 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 	unsigned char *p = pt->serv_buf + LWS_PRE;
 	unsigned char *start = p;
 	unsigned char *end = p + context->pt_serv_buf_size - LWS_PRE;
-	char *body = (char *)start + context->pt_serv_buf_size - 512;
 	int n = 0, m = 0, len;
 	char slen[20];
 
@@ -389,9 +297,9 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 	    code == HTTP_STATUS_NOT_FOUND)
 		/* we should do a redirect, and do the 404 there */
 		if (lws_http_redirect(wsi, HTTP_STATUS_FOUND,
-			       (uint8_t *)wsi->vhost->http.error_document_404,
-			       (int)strlen(wsi->vhost->http.error_document_404),
-			       &p, end) > 0)
+				       (uint8_t *)wsi->vhost->http.error_document_404,
+				       (int)strlen(wsi->vhost->http.error_document_404),
+				       &p, end) > 0)
 			return 0;
 #endif
 
@@ -409,15 +317,9 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 					 &p, end))
 		return 1;
 
-	len = lws_snprintf(body, 510, "<html><head>"
-		"<meta charset=utf-8 http-equiv=\"Content-Language\" "
-			"content=\"en\"/>"
-		"<link rel=\"stylesheet\" type=\"text/css\" "
-			"href=\"/error.css\"/>"
-		"</head><body><h1>%u</h1>%s</body></html>", code, html_body);
-
-
+	len = 35 + (int)strlen(html_body) + sprintf(slen, "%d", code);
 	n = sprintf(slen, "%d", len);
+
 	if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CONTENT_LENGTH,
 					 (unsigned char *)slen, n, &p, end))
 		return 1;
@@ -427,6 +329,7 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 
 #if defined(LWS_WITH_HTTP2)
 	if (wsi->http2_substream) {
+		unsigned char *body = p + 512;
 
 		/*
 		 * for HTTP/2, the headers must be sent separately, since they
@@ -440,8 +343,7 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 		 *
 		 * Solve it by writing the headers now...
 		 */
-		m = lws_write(wsi, start, lws_ptr_diff(p, start),
-			      LWS_WRITE_HTTP_HEADERS);
+		m = lws_write(wsi, start, p - start, LWS_WRITE_HTTP_HEADERS);
 		if (m != lws_ptr_diff(p, start))
 			return 1;
 
@@ -449,6 +351,10 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 		 * ... but stash the body and send it as a priority next
 		 * handle_POLLOUT
 		 */
+
+		len = sprintf((char *)body,
+			      "<html><body><h1>%u</h1>%s</body></html>",
+			      code, html_body);
 		wsi->http.tx_content_length = len;
 		wsi->http.tx_content_remain = len;
 
@@ -457,7 +363,8 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 		if (!wsi->h2.pending_status_body)
 			return -1;
 
-		strcpy(wsi->h2.pending_status_body + LWS_PRE, body);
+		strcpy(wsi->h2.pending_status_body + LWS_PRE,
+		       (const char *)body);
 		lws_callback_on_writable(wsi);
 
 		return 0;
@@ -468,9 +375,11 @@ lws_return_http_status(struct lws *wsi, unsigned int code,
 		 * for http/1, we can just append the body after the finalized
 		 * headers and send it all in one go.
 		 */
+		p += lws_snprintf((char *)p, end - p - 1,
+				  "<html><body><h1>%u</h1>%s</body></html>",
+				  code, html_body);
 
-		n = lws_ptr_diff(p, start) + len;
-		memcpy(p, body, len);
+		n = lws_ptr_diff(p, start);
 		m = lws_write(wsi, start, n, LWS_WRITE_HTTP);
 		if (m != n)
 			return 1;
@@ -510,20 +419,3 @@ lws_http_redirect(struct lws *wsi, int code, const unsigned char *loc, int len,
 	return lws_write(wsi, start, *p - start, LWS_WRITE_HTTP_HEADERS |
 						 LWS_WRITE_H2_STREAM_END);
 }
-
-#if !defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-LWS_VISIBLE int
-lws_http_compression_apply(struct lws *wsi, const char *name,
-			   unsigned char **p, unsigned char *end, char decomp)
-{
-	(void)wsi;
-	(void)name;
-	(void)p;
-	(void)end;
-	(void)decomp;
-
-	return 0;
-}
-#endif
-
-
diff --git a/thirdparty/libwebsockets/lib/roles/http/lextable-strings.h b/thirdparty/libwebsockets/roles/http/lextable-strings.h
index 1e4fee855f..631f5cb600 100644
--- a/thirdparty/libwebsockets/lib/roles/http/lextable-strings.h
+++ b/thirdparty/libwebsockets/roles/http/lextable-strings.h
@@ -1,6 +1,10 @@
 /* set of parsable strings -- ALL LOWER CASE */
 
-static const char * const set[] = {
+#if !defined(STORE_IN_ROM)
+#define STORE_IN_ROM
+#endif
+
+STORE_IN_ROM static const char * const set[] = {
 	"get ",
 	"post ",
 	"options ",
diff --git a/thirdparty/libwebsockets/lib/roles/http/lextable.h b/thirdparty/libwebsockets/roles/http/lextable.h
index 9a8063b157..9a8063b157 100644
--- a/thirdparty/libwebsockets/lib/roles/http/lextable.h
+++ b/thirdparty/libwebsockets/roles/http/lextable.h
diff --git a/thirdparty/libwebsockets/lib/roles/http/private.h b/thirdparty/libwebsockets/roles/http/private.h
index ff8b0581cc..5699914742 100644
--- a/thirdparty/libwebsockets/lib/roles/http/private.h
+++ b/thirdparty/libwebsockets/roles/http/private.h
@@ -22,15 +22,11 @@
  *  enabled
  */
 
-#if defined(LWS_WITH_HUBBUB)
+#if defined(LWS_WITH_HTTP_PROXY)
   #include <hubbub/hubbub.h>
   #include <hubbub/parser.h>
  #endif
 
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-#include "roles/http/compression/private.h"
-#endif
-
 #define lwsi_role_http(wsi) (lwsi_role_h1(wsi) || lwsi_role_h2(wsi))
 
 enum http_version {
@@ -39,7 +35,7 @@ enum http_version {
 	HTTP_VERSION_2
 };
 
-enum http_conn_type {
+enum http_connection_type {
 	HTTP_CONNECTION_CLOSE,
 	HTTP_CONNECTION_KEEP_ALIVE
 };
@@ -137,7 +133,7 @@ struct allocated_headers {
 
 
 
-#if defined(LWS_WITH_HUBBUB)
+#if defined(LWS_WITH_HTTP_PROXY)
 struct lws_rewrite {
 	hubbub_parser *parser;
 	hubbub_parser_optparams params;
@@ -196,15 +192,9 @@ struct lws_access_log {
 };
 #endif
 
-#define LWS_HTTP_CHUNK_HDR_MAX_SIZE (6 + 2) /* 6 hex digits and then CRLF */
-#define LWS_HTTP_CHUNK_TRL_MAX_SIZE (2 + 5) /* CRLF, then maybe 0 CRLF CRLF */
-
 struct _lws_http_mode_related {
 	struct lws *new_wsi_list;
 
-	unsigned char *pending_return_headers;
-	size_t pending_return_headers_len;
-
 #if defined(LWS_WITH_HTTP_PROXY)
 	struct lws_rewrite *rw;
 #endif
@@ -226,14 +216,9 @@ struct _lws_http_mode_related {
 #ifdef LWS_WITH_CGI
 	struct lws_cgi *cgi; /* wsi being cgi master have one of these */
 #endif
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	struct lws_compression_support *lcs;
-	lws_comp_ctx_t comp_ctx;
-	unsigned char comp_accept_mask;
-#endif
 
 	enum http_version request_version;
-	enum http_conn_type conn_type;
+	enum http_connection_type connection_type;
 	lws_filepos_t tx_content_length;
 	lws_filepos_t tx_content_remain;
 	lws_filepos_t rx_content_length;
@@ -241,12 +226,8 @@ struct _lws_http_mode_related {
 
 #if defined(LWS_WITH_HTTP_PROXY)
 	unsigned int perform_rewrite:1;
-	unsigned int proxy_clientside:1;
-	unsigned int proxy_parent_chunked:1;
 #endif
 	unsigned int deferred_transaction_completed:1;
-	unsigned int content_length_explicitly_zero:1;
-	unsigned int did_stream_close:1;
 };
 
 
diff --git a/thirdparty/libwebsockets/roles/http/server/access-log.c b/thirdparty/libwebsockets/roles/http/server/access-log.c
new file mode 100644
index 0000000000..0e75309d7a
--- /dev/null
+++ b/thirdparty/libwebsockets/roles/http/server/access-log.c
@@ -0,0 +1,182 @@
+/*
+ * libwebsockets - server access log handling
+ *
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation:
+ *  version 2.1 of the License.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301  USA
+ */
+
+#include "core/private.h"
+
+/*
+ * Produce Apache-compatible log string for wsi, like this:
+ *
+ * 2.31.234.19 - - [27/Mar/2016:03:22:44 +0800]
+ * "GET /aep-screen.png HTTP/1.1"
+ * 200 152987 "https://libwebsockets.org/index.html"
+ * "Mozilla/5.0 (Macint... Chrome/49.0.2623.87 Safari/537.36"
+ *
+ */
+
+extern const char * const method_names[];
+
+static const char * const hver[] = {
+	"HTTP/1.0", "HTTP/1.1", "HTTP/2"
+};
+
+void
+lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int meth)
+{
+#ifdef LWS_WITH_IPV6
+	char ads[INET6_ADDRSTRLEN];
+#else
+	char ads[INET_ADDRSTRLEN];
+#endif
+	char da[64];
+	const char *pa, *me;
+	struct tm *tmp;
+	time_t t = time(NULL);
+	int l = 256, m;
+
+	if (!wsi->vhost)
+		return;
+
+	/* only worry about preparing it if we store it */
+	if (wsi->vhost->log_fd == (int)LWS_INVALID_FILE)
+		return;
+
+	if (wsi->access_log_pending)
+		lws_access_log(wsi);
+
+	wsi->http.access_log.header_log = lws_malloc(l, "access log");
+	if (wsi->http.access_log.header_log) {
+
+		tmp = localtime(&t);
+		if (tmp)
+			strftime(da, sizeof(da), "%d/%b/%Y:%H:%M:%S %z", tmp);
+		else
+			strcpy(da, "01/Jan/1970:00:00:00 +0000");
+
+		pa = lws_get_peer_simple(wsi, ads, sizeof(ads));
+		if (!pa)
+			pa = "(unknown)";
+
+		if (wsi->http2_substream)
+			me = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP_COLON_METHOD);
+		else
+			me = method_names[meth];
+		if (!me)
+			me = "(null)";
+
+		lws_snprintf(wsi->http.access_log.header_log, l,
+			 "%s - - [%s] \"%s %s %s\"",
+			 pa, da, me, uri_ptr,
+			 hver[wsi->http.request_version]);
+
+		l = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_USER_AGENT);
+		if (l) {
+			wsi->http.access_log.user_agent = lws_malloc(l + 2, "access log");
+			if (!wsi->http.access_log.user_agent) {
+				lwsl_err("OOM getting user agent\n");
+				lws_free_set_NULL(wsi->http.access_log.header_log);
+				return;
+			}
+
+			lws_hdr_copy(wsi, wsi->http.access_log.user_agent,
+					l + 1, WSI_TOKEN_HTTP_USER_AGENT);
+
+			for (m = 0; m < l; m++)
+				if (wsi->http.access_log.user_agent[m] == '\"')
+					wsi->http.access_log.user_agent[m] = '\'';
+		}
+		l = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_REFERER);
+		if (l) {
+			wsi->http.access_log.referrer = lws_malloc(l + 2, "referrer");
+			if (!wsi->http.access_log.referrer) {
+				lwsl_err("OOM getting user agent\n");
+				lws_free_set_NULL(wsi->http.access_log.user_agent);
+				lws_free_set_NULL(wsi->http.access_log.header_log);
+				return;
+			}
+			lws_hdr_copy(wsi, wsi->http.access_log.referrer,
+					l + 1, WSI_TOKEN_HTTP_REFERER);
+
+			for (m = 0; m < l; m++)
+				if (wsi->http.access_log.referrer[m] == '\"')
+					wsi->http.access_log.referrer[m] = '\'';
+		}
+		wsi->access_log_pending = 1;
+	}
+}
+
+
+int
+lws_access_log(struct lws *wsi)
+{
+	char *p = wsi->http.access_log.user_agent, ass[512],
+	     *p1 = wsi->http.access_log.referrer;
+	int l;
+
+	if (!wsi->vhost)
+		return 0;
+
+	if (wsi->vhost->log_fd == (int)LWS_INVALID_FILE)
+		return 0;
+
+	if (!wsi->access_log_pending)
+		return 0;
+
+	if (!wsi->http.access_log.header_log)
+		return 0;
+
+	if (!p)
+		p = "";
+
+	if (!p1)
+		p1 = "";
+
+	/*
+	 * We do this in two parts to restrict an oversize referrer such that
+	 * we will always have space left to append an empty useragent, while
+	 * maintaining the structure of the log text
+	 */
+	l = lws_snprintf(ass, sizeof(ass) - 7, "%s %d %lu \"%s",
+		     wsi->http.access_log.header_log,
+		     wsi->http.access_log.response, wsi->http.access_log.sent, p1);
+	if (strlen(p) > sizeof(ass) - 6 - l)
+		p[sizeof(ass) - 6 - l] = '\0';
+	l += lws_snprintf(ass + l, sizeof(ass) - 1 - l, "\" \"%s\"\n", p);
+
+	if (write(wsi->vhost->log_fd, ass, l) != l)
+		lwsl_err("Failed to write log\n");
+
+	if (wsi->http.access_log.header_log) {
+		lws_free(wsi->http.access_log.header_log);
+		wsi->http.access_log.header_log = NULL;
+	}
+	if (wsi->http.access_log.user_agent) {
+		lws_free(wsi->http.access_log.user_agent);
+		wsi->http.access_log.user_agent = NULL;
+	}
+	if (wsi->http.access_log.referrer) {
+		lws_free(wsi->http.access_log.referrer);
+		wsi->http.access_log.referrer = NULL;
+	}
+	wsi->access_log_pending = 0;
+
+	return 0;
+}
+
diff --git a/thirdparty/libwebsockets/lib/roles/http/server/fops-zip.c b/thirdparty/libwebsockets/roles/http/server/fops-zip.c
index 4db83ce621..4db83ce621 100644
--- a/thirdparty/libwebsockets/lib/roles/http/server/fops-zip.c
+++ b/thirdparty/libwebsockets/roles/http/server/fops-zip.c
diff --git a/thirdparty/libwebsockets/lib/roles/http/server/lejp-conf.c b/thirdparty/libwebsockets/roles/http/server/lejp-conf.c
index 0dd701d835..fbf10c288e 100644
--- a/thirdparty/libwebsockets/lib/roles/http/server/lejp-conf.c
+++ b/thirdparty/libwebsockets/roles/http/server/lejp-conf.c
@@ -1,7 +1,7 @@
 /*
  * libwebsockets web server application
  *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -105,11 +105,6 @@ static const char * const paths_vhosts[] = {
 	"vhosts[].ignore-missing-cert",
 	"vhosts[].error-document-404",
 	"vhosts[].alpn",
-	"vhosts[].ssl-client-option-set",
-	"vhosts[].ssl-client-option-clear",
-	"vhosts[].tls13-ciphers",
-	"vhosts[].client-tls13-ciphers",
-	"vhosts[].strict-host-check",
 };
 
 enum lejp_vhost_paths {
@@ -161,11 +156,6 @@ enum lejp_vhost_paths {
 	LEJPVP_IGNORE_MISSING_CERT,
 	LEJPVP_ERROR_DOCUMENT_404,
 	LEJPVP_ALPN,
-	LEJPVP_SSL_CLIENT_OPTION_SET,
-	LEJPVP_SSL_CLIENT_OPTION_CLEAR,
-	LEJPVP_TLS13_CIPHERS,
-	LEJPVP_CLIENT_TLS13_CIPHERS,
-	LEJPVP_FLAG_STRICT_HOST_CHECK,
 };
 
 static const char * const parser_errs[] = {
@@ -262,7 +252,7 @@ lejp_globals_cb(struct lejp_ctx *ctx, char reason)
 		rej = lwsws_align(a);
 		a->p += sizeof(*rej);
 
-		n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
+		n = lejp_get_wildcard(ctx, 0, a->p, a->end - a->p);
 		rej->next = a->info->reject_service_keywords;
 		a->info->reject_service_keywords = rej;
 		rej->name = a->p;
@@ -413,7 +403,7 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		a->pvo = lwsws_align(a);
 		a->p += sizeof(*a->pvo);
 
-		n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
+		n = lejp_get_wildcard(ctx, 0, a->p, a->end - a->p);
 		/* ie, enable this protocol, no options yet */
 		a->pvo->next = a->info->pvo;
 		a->info->pvo = a->pvo;
@@ -428,7 +418,6 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 	/* this catches, eg, vhosts[].headers[].xxx */
 	if ((reason == LEJPCB_VAL_STR_END || reason == LEJPCB_VAL_STR_CHUNK) &&
 	    ctx->path_match == LEJPVP_HEADERS_NAME + 1) {
-
 		if (!a->chunk) {
 			headers = lwsws_align(a);
 			a->p += sizeof(*headers);
@@ -461,9 +450,8 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		struct lws_vhost *vhost;
 
 		//lwsl_notice("%s\n", ctx->path);
-		if (!a->info->port &&
-		    !(a->info->options & LWS_SERVER_OPTION_UNIX_SOCK)) {
-			lwsl_err("Port required (eg, 443)\n");
+		if (!a->info->port) {
+			lwsl_err("Port required (eg, 443)");
 			return 1;
 		}
 		a->valid = 0;
@@ -479,19 +467,13 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 
 #if defined(LWS_WITH_TLS)
 		if (a->enable_client_ssl) {
-			const char *cert_filepath =
-					a->info->client_ssl_cert_filepath;
-			const char *private_key_filepath =
-				       a->info->client_ssl_private_key_filepath;
-			const char *ca_filepath =
-					a->info->client_ssl_ca_filepath;
-			const char *cipher_list =
-					a->info->client_ssl_cipher_list;
-
+			const char *cert_filepath = a->info->client_ssl_cert_filepath;
+			const char *private_key_filepath = a->info->client_ssl_private_key_filepath;
+			const char *ca_filepath = a->info->client_ssl_ca_filepath;
+			const char *cipher_list = a->info->client_ssl_cipher_list;
 			memset(a->info, 0, sizeof(*a->info));
 			a->info->client_ssl_cert_filepath = cert_filepath;
-			a->info->client_ssl_private_key_filepath =
-							private_key_filepath;
+			a->info->client_ssl_private_key_filepath = private_key_filepath;
 			a->info->client_ssl_ca_filepath = ca_filepath;
 			a->info->client_ssl_cipher_list = cipher_list;
 			a->info->options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
@@ -635,13 +617,6 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 	case LEJPVP_CIPHERS:
 		a->info->ssl_cipher_list = a->p;
 		break;
-	case LEJPVP_TLS13_CIPHERS:
-		a->info->tls1_3_plus_cipher_list = a->p;
-		break;
-	case LEJPVP_CLIENT_TLS13_CIPHERS:
-		a->info->client_tls_1_3_plus_cipher_list = a->p;
-		break;
-
 	case LEJPVP_ECDH_CURVE:
 		a->info->ecdh_curve = a->p;
 		break;
@@ -653,13 +628,13 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		mp_cgienv->next = a->m.cgienv;
 		a->m.cgienv = mp_cgienv;
 
-		n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
+		n = lejp_get_wildcard(ctx, 0, a->p, a->end - a->p);
 		mp_cgienv->name = a->p;
 		a->p += n;
 		mp_cgienv->value = a->p;
 		mp_cgienv->options = NULL;
-		//lwsl_notice("    adding pmo / cgi-env '%s' = '%s'\n",
-		//		mp_cgienv->name, mp_cgienv->value);
+		//lwsl_notice("    adding pmo / cgi-env '%s' = '%s'\n", mp_cgienv->name,
+		//		mp_cgienv->value);
 		goto dostring;
 
 	case LEJPVP_PROTOCOL_NAME_OPT:
@@ -670,7 +645,7 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		pvo = lwsws_align(a);
 		a->p += sizeof(*a->pvo);
 
-		n = lejp_get_wildcard(ctx, 1, a->p, lws_ptr_diff(a->end, a->p));
+		n = lejp_get_wildcard(ctx, 1, a->p, a->end - a->p);
 		/* ie, enable this protocol, no options yet */
 		pvo->next = a->pvo->options;
 		a->pvo->options = pvo;
@@ -684,12 +659,12 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		a->pvo_em = lwsws_align(a);
 		a->p += sizeof(*a->pvo_em);
 
-		n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
+		n = lejp_get_wildcard(ctx, 0, a->p, a->end - a->p);
 		/* ie, enable this protocol, no options yet */
 		a->pvo_em->next = a->m.extra_mimetypes;
 		a->m.extra_mimetypes = a->pvo_em;
 		a->pvo_em->name = a->p;
-		lwsl_notice("  + extra-mimetypes %s -> %s\n", a->p, ctx->buf);
+		lwsl_notice("  adding extra-mimetypes %s -> %s\n", a->p, ctx->buf);
 		a->p += n;
 		a->pvo_em->value = a->p;
 		a->pvo_em->options = NULL;
@@ -699,7 +674,7 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		a->pvo_int = lwsws_align(a);
 		a->p += sizeof(*a->pvo_int);
 
-		n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
+		n = lejp_get_wildcard(ctx, 0, a->p, a->end - a->p);
 		/* ie, enable this protocol, no options yet */
 		a->pvo_int->next = a->m.interpret;
 		a->m.interpret = a->pvo_int;
@@ -762,15 +737,6 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 
 		return 0;
 
-	case LEJPVP_FLAG_STRICT_HOST_CHECK:
-		if (arg_to_bool(ctx->buf))
-			a->info->options |=
-				LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK;
-		else
-			a->info->options &=
-				~(LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK);
-		return 0;
-
 	case LEJPVP_ERROR_DOCUMENT_404:
 		a->info->error_document_404 = a->p;
 		break;
@@ -782,13 +748,6 @@ lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
 		a->info->ssl_options_clear |= atol(ctx->buf);
 		return 0;
 
-	case LEJPVP_SSL_CLIENT_OPTION_SET:
-		a->info->ssl_client_options_set |= atol(ctx->buf);
-		return 0;
-	case LEJPVP_SSL_CLIENT_OPTION_CLEAR:
-		a->info->ssl_client_options_clear |= atol(ctx->buf);
-		return 0;
-
 	case LEJPVP_ALPN:
 		a->info->alpn = a->p;
 		break;
@@ -802,13 +761,12 @@ dostring:
 	p[LEJP_STRING_CHUNK] = '\0';
 	p1 = strstr(p, ESC_INSTALL_DATADIR);
 	if (p1) {
-		n = lws_ptr_diff(p1, p);
+		n = p1 - p;
 		if (n > a->end - a->p)
-			n = lws_ptr_diff(a->end, a->p);
+			n = a->end - a->p;
 		lws_strncpy(a->p, p, n + 1);
 		a->p += n;
-		a->p += lws_snprintf(a->p, a->end - a->p, "%s",
-				     LWS_INSTALL_DATADIR);
+		a->p += lws_snprintf(a->p, a->end - a->p, "%s", LWS_INSTALL_DATADIR);
 		p += n + strlen(ESC_INSTALL_DATADIR);
 	}
 
@@ -913,7 +871,7 @@ static int
 lwsws_get_config_d(void *user, const char *d, const char * const *paths,
 		   int count_paths, lejp_callback cb)
 {
-#if !defined(_WIN32) && !defined(LWS_WITH_ESP32)
+#ifndef _WIN32
 	struct dirent **namelist;
 	char path[256];
 	int n, i, ret = 0;
@@ -983,14 +941,13 @@ lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
 		return 1;
 	lws_snprintf(dd, sizeof(dd) - 1, "%s/conf.d", d);
 	if (lwsws_get_config_d(&a, dd, paths_global,
-			       LWS_ARRAY_SIZE(paths_global),
-			       lejp_globals_cb) > 1)
+			       LWS_ARRAY_SIZE(paths_global), lejp_globals_cb) > 1)
 		return 1;
 
 	a.plugin_dirs[a.count_plugin_dirs] = NULL;
 
 	*cs = a.p;
-	*len = lws_ptr_diff(a.end, a.p);
+	*len = a.end - a.p;
 
 	return 0;
 }
@@ -1023,7 +980,7 @@ lwsws_get_config_vhosts(struct lws_context *context,
 		return 1;
 
 	*cs = a.p;
-	*len = lws_ptr_diff(a.end, a.p);
+	*len = a.end - a.p;
 
 	if (!a.any_vhosts) {
 		lwsl_err("Need at least one vhost\n");
diff --git a/thirdparty/libwebsockets/lib/roles/http/server/parsers.c b/thirdparty/libwebsockets/roles/http/server/parsers.c
index 641e9b8dac..482bdc676a 100644
--- a/thirdparty/libwebsockets/lib/roles/http/server/parsers.c
+++ b/thirdparty/libwebsockets/roles/http/server/parsers.c
@@ -240,9 +240,8 @@ lws_header_table_attach(struct lws *wsi, int autoservice)
 	wsi->http.ah->wsi = wsi; /* mark our owner */
 	pt->http.ah_count_in_use++;
 
-#if defined(LWS_WITH_PEER_LIMITS) && (defined(LWS_ROLE_H1) || \
-    defined(LWS_ROLE_H2))
-	lws_context_lock(context, "ah attach"); /* <========================= */
+#if defined(LWS_WITH_PEER_LIMITS) && (defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2))
+	lws_context_lock(context); /* <====================================== */
 	if (wsi->peer)
 		wsi->peer->http.count_ah++;
 	lws_context_unlock(context); /* ====================================> */
@@ -260,7 +259,7 @@ reset:
 
 #ifndef LWS_NO_CLIENT
 	if (lwsi_role_client(wsi) && lwsi_state(wsi) == LRS_UNCONNECTED)
-		if (!lws_http_client_connect_via_info2(wsi))
+		if (!lws_client_connect_via_info2(wsi))
 			/* our client connect has failed, the wsi
 			 * has been closed
 			 */
@@ -354,16 +353,14 @@ int __lws_header_table_detach(struct lws *wsi, int autoservice)
 	if (!wsi) /* everybody waiting already has too many ah... */
 		goto nobody_usable_waiting;
 
-	lwsl_info("%s: transferring ah to last eligible wsi in wait list "
-		  "%p (wsistate 0x%x)\n", __func__, wsi, wsi->wsistate);
+	lwsl_info("%s: transferring ah to last eligible wsi in wait list %p (wsistate 0x%x)\n", __func__, wsi, wsi->wsistate);
 
 	wsi->http.ah = ah;
 	ah->wsi = wsi; /* new owner */
 
 	__lws_header_table_reset(wsi, autoservice);
-#if defined(LWS_WITH_PEER_LIMITS) && (defined(LWS_ROLE_H1) || \
-    defined(LWS_ROLE_H2))
-	lws_context_lock(context, "ah detach"); /* <========================= */
+#if defined(LWS_WITH_PEER_LIMITS) && (defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2))
+	lws_context_lock(context); /* <====================================== */
 	if (wsi->peer)
 		wsi->peer->http.count_ah++;
 	lws_context_unlock(context); /* ====================================> */
@@ -389,7 +386,7 @@ int __lws_header_table_detach(struct lws *wsi, int autoservice)
 	if (lwsi_role_client(wsi) && lwsi_state(wsi) == LRS_UNCONNECTED) {
 		lws_pt_unlock(pt);
 
-		if (!lws_http_client_connect_via_info2(wsi)) {
+		if (!lws_client_connect_via_info2(wsi)) {
 			/* our client connect has failed, the wsi
 			 * has been closed
 			 */
@@ -400,8 +397,7 @@ int __lws_header_table_detach(struct lws *wsi, int autoservice)
 	}
 #endif
 
-	assert(!!pt->http.ah_wait_list_length ==
-			!!(lws_intptr_t)pt->http.ah_wait_list);
+	assert(!!pt->http.ah_wait_list_length == !!(lws_intptr_t)pt->http.ah_wait_list);
 bail:
 	lwsl_info("%s: wsi %p: ah %p (tsi=%d, count = %d)\n", __func__,
 		  (void *)wsi, (void *)ah, pt->tid, pt->http.ah_count_in_use);
@@ -463,10 +459,6 @@ LWS_VISIBLE int lws_hdr_total_length(struct lws *wsi, enum lws_token_indexes h)
 	do {
 		len += wsi->http.ah->frags[n].len;
 		n = wsi->http.ah->frags[n].nfrag;
-
-		if (n && h != WSI_TOKEN_HTTP_COOKIE)
-			++len;
-
 	} while (n);
 
 	return len;
@@ -508,11 +500,6 @@ LWS_VISIBLE int lws_hdr_copy(struct lws *wsi, char *dst, int len,
 {
 	int toklen = lws_hdr_total_length(wsi, h);
 	int n;
-	int comma;
-
-	*dst = '\0';
-	if (!toklen)
-		return 0;
 
 	if (toklen >= len)
 		return -1;
@@ -525,20 +512,13 @@ LWS_VISIBLE int lws_hdr_copy(struct lws *wsi, char *dst, int len,
 		return 0;
 
 	do {
-		comma = (wsi->http.ah->frags[n].nfrag &&
-			h != WSI_TOKEN_HTTP_COOKIE) ? 1 : 0;
-
-		if (wsi->http.ah->frags[n].len + comma >= len)
+		if (wsi->http.ah->frags[n].len >= len)
 			return -1;
 		strncpy(dst, &wsi->http.ah->data[wsi->http.ah->frags[n].offset],
 		        wsi->http.ah->frags[n].len);
 		dst += wsi->http.ah->frags[n].len;
 		len -= wsi->http.ah->frags[n].len;
 		n = wsi->http.ah->frags[n].nfrag;
-
-		if (comma)
-			*dst++ = ',';
-				
 	} while (n);
 	*dst = '\0';
 
@@ -549,9 +529,6 @@ char *lws_hdr_simple_ptr(struct lws *wsi, enum lws_token_indexes h)
 {
 	int n;
 
-	if (!wsi->http.ah)
-		return NULL;
-
 	n = wsi->http.ah->frag_index[h];
 	if (!n)
 		return NULL;
@@ -562,9 +539,6 @@ char *lws_hdr_simple_ptr(struct lws *wsi, enum lws_token_indexes h)
 static int LWS_WARN_UNUSED_RESULT
 lws_pos_in_bounds(struct lws *wsi)
 {
-	if (!wsi->http.ah)
-		return -1;
-
 	if (wsi->http.ah->pos <
 	    (unsigned int)wsi->context->max_http_header_data)
 		return 0;
@@ -625,8 +599,7 @@ issue_char(struct lws *wsi, unsigned char c)
 	 * If we haven't hit the token limit, just copy the character into
 	 * the header
 	 */
-	if (!wsi->http.ah->current_token_limit ||
-	    frag_len < wsi->http.ah->current_token_limit) {
+	if (frag_len < wsi->http.ah->current_token_limit) {
 		wsi->http.ah->data[wsi->http.ah->pos++] = c;
 		if (c)
 			wsi->http.ah->frags[wsi->http.ah->nfrag].len++;
@@ -895,9 +868,8 @@ lws_parse(struct lws *wsi, unsigned char *buf, int *len)
 				if (ah->ups == URIPS_SEEN_SLASH_DOT_DOT) {
 					/*
 					 * back up one dir level if possible
-					 * safe against header fragmentation
-					 * because the method URI can only be
-					 * in 1 fragment
+					 * safe against header fragmentation because
+					 * the method URI can only be in 1 fragment
 					 */
 					if (ah->frags[ah->nfrag].len > 2) {
 						ah->pos--;
@@ -967,8 +939,7 @@ swallow:
 			pos = ah->lextable_pos;
 
 			while (1) {
-				if (lextable[pos] & (1 << 7)) {
-					/* 1-byte, fail on mismatch */
+				if (lextable[pos] & (1 << 7)) { /* 1-byte, fail on mismatch */
 					if ((lextable[pos] & 0x7f) != c) {
 nope:
 						ah->lextable_pos = -1;
@@ -987,15 +958,14 @@ nope:
 					goto nope;
 
 				/* b7 = 0, end or 3-byte */
-				if (lextable[pos] < FAIL_CHAR) { /* term mark */
+				if (lextable[pos] < FAIL_CHAR) { /* terminal marker */
 					ah->lextable_pos = pos;
 					break;
 				}
 
 				if (lextable[pos] == c) { /* goto */
-					ah->lextable_pos = pos +
-						(lextable[pos + 1]) +
-						(lextable[pos + 2] << 8);
+					ah->lextable_pos = pos + (lextable[pos + 1]) +
+							(lextable[pos + 2] << 8);
 					break;
 				}
 
@@ -1068,13 +1038,13 @@ nope:
 					n = WSI_TOKEN_ORIGIN;
 
 				ah->parser_state = (enum lws_token_indexes)
-							(WSI_TOKEN_GET_URI + n);
+								(WSI_TOKEN_GET_URI + n);
 				ah->ups = URIPS_IDLE;
 
 				if (context->token_limits)
 					ah->current_token_limit = context->
-						token_limits->token_limit[
-							      ah->parser_state];
+							token_limits->token_limit[
+								      ah->parser_state];
 				else
 					ah->current_token_limit =
 						wsi->context->max_http_header_data;
@@ -1146,7 +1116,6 @@ excessive:
 set_parsing_complete:
 	if (ah->ues != URIES_IDLE)
 		goto forbid;
-
 	if (lws_hdr_total_length(wsi, WSI_TOKEN_UPGRADE)) {
 		if (lws_hdr_total_length(wsi, WSI_TOKEN_VERSION))
 			wsi->rx_frame_type = /* temp for ws version index */
diff --git a/thirdparty/libwebsockets/lib/roles/http/server/server.c b/thirdparty/libwebsockets/roles/http/server/server.c
index 729315602c..abd86dc9b5 100644
--- a/thirdparty/libwebsockets/lib/roles/http/server/server.c
+++ b/thirdparty/libwebsockets/roles/http/server/server.c
@@ -28,8 +28,6 @@ const char * const method_names[] = {
 #endif
 	};
 
-static const char * const intermediates[] = { "private", "public" };
-
 /*
  * return 0: all done
  *        1: nonfatal error
@@ -40,7 +38,7 @@ static const char * const intermediates[] = { "private", "public" };
 
 int
 _lws_vhost_init_server(const struct lws_context_creation_info *info,
-		       struct lws_vhost *vhost)
+			 struct lws_vhost *vhost)
 {
 	int n, opt = 1, limit = 1;
 	lws_sockfd_type sockfd;
@@ -83,22 +81,15 @@ _lws_vhost_init_server(const struct lws_context_creation_info *info,
 		 * let's check before we do anything else about the disposition
 		 * of the interface he wants to bind to...
 		 */
-		is = lws_socket_bind(vhost, LWS_SOCK_INVALID, vhost->listen_port,
-				vhost->iface);
+		is = lws_socket_bind(vhost, LWS_SOCK_INVALID, vhost->listen_port, vhost->iface);
 		lwsl_debug("initial if check says %d\n", is);
-
-		if (is == LWS_ITOSA_BUSY)
-			/* treat as fatal */
-			return -1;
-
 deal:
 
 		lws_start_foreach_llp(struct lws_vhost **, pv,
 				      vhost->context->no_listener_vhost_list) {
 			if (is >= LWS_ITOSA_USABLE && *pv == vhost) {
 				/* on the list and shouldn't be: remove it */
-				lwsl_debug("deferred iface: removing vh %s\n",
-						(*pv)->name);
+				lwsl_debug("deferred iface: removing vh %s\n", (*pv)->name);
 				*pv = vhost->no_listener_vhost_list;
 				vhost->no_listener_vhost_list = NULL;
 				goto done_list;
@@ -114,8 +105,7 @@ deal:
 			/* ... but needs to be: so add it */
 
 			lwsl_debug("deferred iface: adding vh %s\n", vhost->name);
-			vhost->no_listener_vhost_list =
-					vhost->context->no_listener_vhost_list;
+			vhost->no_listener_vhost_list = vhost->context->no_listener_vhost_list;
 			vhost->context->no_listener_vhost_list = vhost;
 		}
 
@@ -231,16 +221,9 @@ done_list:
 			}
 #endif
 #endif
-		lws_plat_set_socket_options(vhost, sockfd, 0);
+		lws_plat_set_socket_options(vhost, sockfd);
 
 		is = lws_socket_bind(vhost, sockfd, vhost->listen_port, vhost->iface);
-		if (is == LWS_ITOSA_BUSY) {
-			/* treat as fatal */
-			compatible_close(sockfd);
-
-			return -1;
-		}
-
 		/*
 		 * There is a race where the network device may come up and then
 		 * go away and fail here.  So correctly handle unexpected failure
@@ -251,29 +234,21 @@ done_list:
 			compatible_close(sockfd);
 			goto deal;
 		}
+		vhost->listen_port = is;
+
+		lwsl_debug("%s: lws_socket_bind says %d\n", __func__, is);
 
 		wsi = lws_zalloc(sizeof(struct lws), "listen wsi");
 		if (wsi == NULL) {
 			lwsl_err("Out of mem\n");
 			goto bail;
 		}
-
-#ifdef LWS_WITH_UNIX_SOCK
-		if (!LWS_UNIX_SOCK_ENABLED(vhost))
-#endif
-		{
-			wsi->unix_skt = 1;
-			vhost->listen_port = is;
-
-			lwsl_debug("%s: lws_socket_bind says %d\n", __func__, is);
-		}
-
 		wsi->context = vhost->context;
 		wsi->desc.sockfd = sockfd;
 		lws_role_transition(wsi, 0, LRS_UNCONNECTED, &role_ops_listen);
 		wsi->protocol = vhost->protocols;
 		wsi->tsi = m;
-		lws_vhost_bind_wsi(vhost, wsi);
+		wsi->vhost = vhost;
 		wsi->listener = 1;
 
 		if (wsi->context->event_loop_ops->init_vhost_listen_wsi)
@@ -321,7 +296,7 @@ lws_select_vhost(struct lws_context *context, int port, const char *servername)
 {
 	struct lws_vhost *vhost = context->vhost_list;
 	const char *p;
-	int n, colon;
+	int n, m, colon;
 
 	n = (int)strlen(servername);
 	colon = n;
@@ -349,8 +324,8 @@ lws_select_vhost(struct lws_context *context, int port, const char *servername)
 	 */
 	vhost = context->vhost_list;
 	while (vhost) {
-		int m = (int)strlen(vhost->name);
-		if (port && port == vhost->listen_port &&
+		m = (int)strlen(vhost->name);
+		if (port == vhost->listen_port &&
 		    m <= (colon - 2) &&
 		    servername[colon - m - 1] == '.' &&
 		    !strncmp(vhost->name, servername + colon - m, m)) {
@@ -365,7 +340,7 @@ lws_select_vhost(struct lws_context *context, int port, const char *servername)
 
 	vhost = context->vhost_list;
 	while (vhost) {
-		if (port && port == vhost->listen_port) {
+		if (port == vhost->listen_port) {
 			lwsl_info("%s: vhost match to %s based on port %d\n",
 					__func__, vhost->name, port);
 			return vhost;
@@ -381,8 +356,8 @@ lws_select_vhost(struct lws_context *context, int port, const char *servername)
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_mimetype(const char *file, const struct lws_http_mount *m)
 {
-	const struct lws_protocol_vhost_options *pvo = NULL;
 	int n = (int)strlen(file);
+	const struct lws_protocol_vhost_options *pvo = NULL;
 
 	if (m)
 		pvo = m->extra_mimetypes;
@@ -482,7 +457,7 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 #endif
 	int spin = 0;
 #endif
-	char path[256], sym[2048];
+	char path[256], sym[512];
 	unsigned char *p = (unsigned char *)sym + 32 + LWS_PRE, *start = p;
 	unsigned char *end = p + sizeof(sym) - 32 - LWS_PRE;
 #if !defined(WIN32) && !defined(LWS_WITH_ESP32)
@@ -519,7 +494,7 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 			lwsl_info("%s: Unable to open '%s': errno %d\n",
 				  __func__, path, errno);
 
-			return 1;
+			return -1;
 		}
 
 		/* if it can't be statted, don't try */
@@ -531,18 +506,18 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 #if !defined(WIN32)
 		if (fstat(wsi->http.fop_fd->fd, &st)) {
 			lwsl_info("unable to stat %s\n", path);
-			goto notfound;
+			goto bail;
 		}
 #else
 #if defined(LWS_HAVE__STAT32I64)
 		if (_stat32i64(path, &st)) {
 			lwsl_info("unable to stat %s\n", path);
-			goto notfound;
+			goto bail;
 		}
 #else
 		if (stat(path, &st)) {
 			lwsl_info("unable to stat %s\n", path);
-			goto notfound;
+			goto bail;
 		}
 #endif
 #endif
@@ -555,7 +530,7 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 			len = readlink(path, sym, sizeof(sym) - 1);
 			if (len) {
 				lwsl_err("Failed to read link %s\n", path);
-				goto notfound;
+				goto bail;
 			}
 			sym[len] = '\0';
 			lwsl_debug("symlink %s -> %s\n", path, sym);
@@ -592,48 +567,19 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 		if (!strcmp(sym, lws_hdr_simple_ptr(wsi,
 					WSI_TOKEN_HTTP_IF_NONE_MATCH))) {
 
-			char cache_control[50], *cc = "no-store";
-			int cclen = 8;
-
 			lwsl_debug("%s: ETAG match %s %s\n", __func__,
 				   uri, origin);
 
 			/* we don't need to send the payload */
 			if (lws_add_http_header_status(wsi,
-					HTTP_STATUS_NOT_MODIFIED, &p, end)) {
-				lwsl_err("%s: failed adding not modified\n",
-						__func__);
+					HTTP_STATUS_NOT_MODIFIED, &p, end))
 				return -1;
-			}
 
 			if (lws_add_http_header_by_token(wsi,
 					WSI_TOKEN_HTTP_ETAG,
 					(unsigned char *)sym, n, &p, end))
 				return -1;
 
-			/* but we still need to send cache control... */
-
-			if (m->cache_max_age && m->cache_reusable) {
-				if (!m->cache_revalidate) {
-					cc = cache_control;
-					cclen = sprintf(cache_control,
-						"%s, max-age=%u",
-						intermediates[wsi->cache_intermediaries],
-						m->cache_max_age);
-				} else {
-					cc = cache_control;
-                                        cclen = sprintf(cache_control,
-                                        	"must-revalidate, %s, max-age=%u",
-                                                intermediates[wsi->cache_intermediaries],
-                                                m->cache_max_age);
-				}
-			}
-
-			if (lws_add_http_header_by_token(wsi,
-					WSI_TOKEN_HTTP_CACHE_CONTROL,
-					(unsigned char *)cc, cclen, &p, end))
-				return -1;
-
 			if (lws_finalize_http_header(wsi, &p, end))
 				return -1;
 
@@ -648,10 +594,7 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 
 			lws_vfs_file_close(&wsi->http.fop_fd);
 
-			if (lws_http_transaction_completed(wsi))
-				return -1;
-
-			return 0;
+			return lws_http_transaction_completed(wsi);
 		}
 	}
 
@@ -662,13 +605,8 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 
 	mimetype = lws_get_mimetype(path, m);
 	if (!mimetype) {
-		lwsl_info("unknown mimetype for %s\n", path);
-		if (lws_return_http_status(wsi,
-				HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE, NULL) ||
-		    lws_http_transaction_completed(wsi))
-			return -1;
-
-		return 0;
+		lwsl_err("unknown mimetype for %s\n", path);
+               goto bail;
 	}
 	if (!mimetype[0])
 		lwsl_debug("sending no mimetype for %s\n", path);
@@ -704,8 +642,8 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 		const struct lws_protocols *pp = lws_vhost_name_to_protocol(
 						       wsi->vhost, m->protocol);
 
-		if (lws_bind_protocol(wsi, pp, __func__))
-			return -1;
+		if (lws_bind_protocol(wsi, pp))
+			return 1;
 		args.p = (char *)p;
 		args.max_len = lws_ptr_diff(end, p);
 		if (pp->callback(wsi, LWS_CALLBACK_ADD_HEADERS,
@@ -714,7 +652,6 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 		p = (unsigned char *)args.p;
 	}
 
-	*p = '\0';
 	n = lws_serve_http_file(wsi, path, mimetype, (char *)start,
 				lws_ptr_diff(p, start));
 
@@ -722,10 +659,9 @@ lws_http_serve(struct lws *wsi, char *uri, const char *origin,
 		return -1; /* error or can't reuse connection: close the socket */
 
 	return 0;
+bail:
 
-notfound:
-
-	return 1;
+	return -1;
 }
 
 #if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
@@ -813,7 +749,7 @@ lws_unauthorised_basic_auth(struct lws *wsi)
 {
 	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
 	unsigned char *start = pt->serv_buf + LWS_PRE,
-		      *p = start, *end = p + 2048;
+		      *p = start, *end = p + 512;
 	char buf[64];
 	int n;
 
@@ -912,25 +848,24 @@ lws_http_get_uri_and_method(struct lws *wsi, char **puri_ptr, int *puri_len)
 	return -1;
 }
 
-static const char * const oprot[] = {
-	"http://", "https://"
-};
-
 int
 lws_http_action(struct lws *wsi)
 {
 	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-	const struct lws_http_mount *hit = NULL;
+	enum http_connection_type connection_type;
 	enum http_version request_version;
-	struct lws_process_html_args args;
-	enum http_conn_type conn_type;
 	char content_length_str[32];
-	char http_version_str[12];
-	char *uri_ptr = NULL, *s;
-	int uri_len = 0, meth, m;
-	char http_conn_str[25];
-	int http_version_len;
+	struct lws_process_html_args args;
+	const struct lws_http_mount *hit = NULL;
 	unsigned int n;
+	char http_version_str[10];
+	char http_conn_str[20];
+	int http_version_len;
+	char *uri_ptr = NULL, *s;
+	int uri_len = 0, meth;
+	static const char * const oprot[] = {
+		"http://", "https://"
+	};
 
 	meth = lws_http_get_uri_and_method(wsi, &uri_ptr, &uri_len);
 	if (meth < 0 || meth >= (int)LWS_ARRAY_SIZE(method_names))
@@ -963,21 +898,16 @@ lws_http_action(struct lws *wsi)
 	/* HTTP header had a content length? */
 
 	wsi->http.rx_content_length = 0;
-	wsi->http.content_length_explicitly_zero = 0;
 	if (lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI) ||
-	    lws_hdr_total_length(wsi, WSI_TOKEN_PATCH_URI) ||
-	    lws_hdr_total_length(wsi, WSI_TOKEN_PUT_URI))
+		lws_hdr_total_length(wsi, WSI_TOKEN_PATCH_URI) ||
+		lws_hdr_total_length(wsi, WSI_TOKEN_PUT_URI))
 		wsi->http.rx_content_length = 100 * 1024 * 1024;
 
-	if (lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_CONTENT_LENGTH) &&
-	    lws_hdr_copy(wsi, content_length_str,
-			 sizeof(content_length_str) - 1,
-			 WSI_TOKEN_HTTP_CONTENT_LENGTH) > 0) {
+	if (lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_CONTENT_LENGTH)) {
+		lws_hdr_copy(wsi, content_length_str,
+			     sizeof(content_length_str) - 1,
+			     WSI_TOKEN_HTTP_CONTENT_LENGTH);
 		wsi->http.rx_content_length = atoll(content_length_str);
-		if (!wsi->http.rx_content_length) {
-			wsi->http.content_length_explicitly_zero = 1;
-			lwsl_debug("%s: explicit 0 content-length\n", __func__);
-		}
 	}
 
 	if (wsi->http2_substream) {
@@ -988,33 +918,35 @@ lws_http_action(struct lws *wsi)
 
 		/* Works for single digit HTTP versions. : */
 		http_version_len = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP);
-		if (http_version_len > 7 &&
-		    lws_hdr_copy(wsi, http_version_str,
-				 sizeof(http_version_str) - 1,
-				 WSI_TOKEN_HTTP) > 0 &&
-		    http_version_str[5] == '1' && http_version_str[7] == '1')
-			request_version = HTTP_VERSION_1_1;
-
+		if (http_version_len > 7) {
+			lws_hdr_copy(wsi, http_version_str,
+				     sizeof(http_version_str) - 1,
+				     WSI_TOKEN_HTTP);
+			if (http_version_str[5] == '1' &&
+			    http_version_str[7] == '1')
+				request_version = HTTP_VERSION_1_1;
+		}
 		wsi->http.request_version = request_version;
 
 		/* HTTP/1.1 defaults to "keep-alive", 1.0 to "close" */
 		if (request_version == HTTP_VERSION_1_1)
-			conn_type = HTTP_CONNECTION_KEEP_ALIVE;
+			connection_type = HTTP_CONNECTION_KEEP_ALIVE;
 		else
-			conn_type = HTTP_CONNECTION_CLOSE;
+			connection_type = HTTP_CONNECTION_CLOSE;
 
 		/* Override default if http "Connection:" header: */
-		if (lws_hdr_total_length(wsi, WSI_TOKEN_CONNECTION) &&
-		    lws_hdr_copy(wsi, http_conn_str, sizeof(http_conn_str) - 1,
-				 WSI_TOKEN_CONNECTION) > 0) {
+		if (lws_hdr_total_length(wsi, WSI_TOKEN_CONNECTION)) {
+			lws_hdr_copy(wsi, http_conn_str,
+				     sizeof(http_conn_str) - 1,
+				     WSI_TOKEN_CONNECTION);
 			http_conn_str[sizeof(http_conn_str) - 1] = '\0';
 			if (!strcasecmp(http_conn_str, "keep-alive"))
-				conn_type = HTTP_CONNECTION_KEEP_ALIVE;
+				connection_type = HTTP_CONNECTION_KEEP_ALIVE;
 			else
 				if (!strcasecmp(http_conn_str, "close"))
-					conn_type = HTTP_CONNECTION_CLOSE;
+					connection_type = HTTP_CONNECTION_CLOSE;
 		}
-		wsi->http.conn_type = conn_type;
+		wsi->http.connection_type = connection_type;
 	}
 
 	n = wsi->protocol->callback(wsi, LWS_CALLBACK_FILTER_HTTP_CONNECTION,
@@ -1038,7 +970,7 @@ lws_http_action(struct lws *wsi)
 		 * URI from the host: header and ignore the path part
 		 */
 		unsigned char *start = pt->serv_buf + LWS_PRE, *p = start,
-			      *end = p + wsi->context->pt_serv_buf_size - LWS_PRE;
+			      *end = p + 512;
 
 		if (!lws_hdr_total_length(wsi, WSI_TOKEN_HOST))
 			goto bail_nuke_ah;
@@ -1056,7 +988,7 @@ lws_http_action(struct lws *wsi)
 #endif
 
 #ifdef LWS_WITH_ACCESS_LOG
-	lws_prepare_access_log_info(wsi, uri_ptr, uri_len, meth);
+	lws_prepare_access_log_info(wsi, uri_ptr, meth);
 #endif
 
 	/* can we serve it from the mount list? */
@@ -1067,13 +999,12 @@ lws_http_action(struct lws *wsi)
 
 		lwsl_info("no hit\n");
 
-		if (lws_bind_protocol(wsi, &wsi->vhost->protocols[0],
-				      "no mount hit"))
+		if (lws_bind_protocol(wsi, &wsi->vhost->protocols[0]))
 			return 1;
 
 		lwsi_set_state(wsi, LRS_DOING_TRANSACTION);
 
-		m = wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP,
+		n = wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP,
 				    wsi->user_space, uri_ptr, uri_len);
 
 		goto after;
@@ -1104,11 +1035,10 @@ lws_http_action(struct lws *wsi)
 	      hit->origin_protocol == LWSMPRO_REDIR_HTTPS)) &&
 	    (hit->origin_protocol != LWSMPRO_CGI &&
 	     hit->origin_protocol != LWSMPRO_CALLBACK)) {
-		unsigned char *start = pt->serv_buf + LWS_PRE, *p = start,
-			      *end = p + wsi->context->pt_serv_buf_size -
-			      	     LWS_PRE - 512;
+		unsigned char *start = pt->serv_buf + LWS_PRE,
+			      *p = start, *end = p + 512;
 
-		lwsl_info("Doing 301 '%s' org %s\n", s, hit->origin);
+		lwsl_debug("Doing 301 '%s' org %s\n", s, hit->origin);
 
 		/* > at start indicates deal with by redirect */
 		if (hit->origin_protocol == LWSMPRO_REDIR_HTTP ||
@@ -1145,21 +1075,12 @@ lws_http_action(struct lws *wsi)
 	/* basic auth? */
 
 	if (hit->basic_auth_login_file) {
-		char b64[160], plain[(sizeof(b64) * 3) / 4], *pcolon;
-		int m, ml, fi;
+		char b64[160], plain[(sizeof(b64) * 3) / 4];
+		int m;
 
 		/* Did he send auth? */
-		ml = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_AUTHORIZATION);
-		if (!ml)
-			return lws_unauthorised_basic_auth(wsi);
-
-		/* Disallow fragmentation monkey business */
-
-		fi = wsi->http.ah->frag_index[WSI_TOKEN_HTTP_AUTHORIZATION];
-		if (wsi->http.ah->frags[fi].nfrag) {
-			lwsl_err("fragmented basic auth header not allowed\n");
+		if (!lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_AUTHORIZATION))
 			return lws_unauthorised_basic_auth(wsi);
-		}
 
 		n = HTTP_STATUS_FORBIDDEN;
 
@@ -1178,36 +1099,21 @@ lws_http_action(struct lws *wsi)
 
 		/* It'll be like Authorization: Basic QWxhZGRpbjpPcGVuU2VzYW1l */
 
-		m = lws_b64_decode_string(b64 + 6, plain, sizeof(plain) - 1);
+		m = lws_b64_decode_string(b64 + 6, plain, sizeof(plain));
 		if (m < 0) {
 			lwsl_err("plain auth too long\n");
 			goto transaction_result_n;
 		}
 
-		plain[m] = '\0';
-		pcolon = strchr(plain, ':');
-		if (!pcolon) {
-			lwsl_err("basic auth format broken\n");
-			return lws_unauthorised_basic_auth(wsi);
-		}
 		if (!lws_find_string_in_file(hit->basic_auth_login_file,
 					     plain, m)) {
 			lwsl_err("basic auth lookup failed\n");
 			return lws_unauthorised_basic_auth(wsi);
 		}
 
-		/*
-		 * Rewrite WSI_TOKEN_HTTP_AUTHORIZATION so it is just the
-		 * authorized username
-		 */
+		lwsl_info("basic auth accepted\n");
 
-		*pcolon = '\0';
-		wsi->http.ah->frags[fi].len = lws_ptr_diff(pcolon, plain);
-		pcolon = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP_AUTHORIZATION);
-		strncpy(pcolon, plain, ml - 1);
-		pcolon[ml - 1] = '\0';
-		lwsl_info("%s: basic auth accepted for %s\n", __func__,
-			 lws_hdr_simple_ptr(wsi, WSI_TOKEN_HTTP_AUTHORIZATION));
+		/* accept the auth */
 	}
 
 #if defined(LWS_WITH_HTTP_PROXY)
@@ -1215,21 +1121,15 @@ lws_http_action(struct lws *wsi)
 	 * The mount is a reverse proxy?
 	 */
 
-	// lwsl_notice("%s: origin_protocol: %d\n", __func__, hit->origin_protocol);
-
 	if (hit->origin_protocol == LWSMPRO_HTTPS ||
 	    hit->origin_protocol == LWSMPRO_HTTP)  {
-		char ads[96], rpath[256], *pcolon, *pslash, unix_skt = 0;
 		struct lws_client_connect_info i;
-		struct lws *cwsi;
+		char ads[96], rpath[256], *pcolon, *pslash, *p;
 		int n, na;
 
 		memset(&i, 0, sizeof(i));
 		i.context = lws_get_context(wsi);
 
-		if (hit->origin[0] == '+')
-			unix_skt = 1;
-
 		pcolon = strchr(hit->origin, ':');
 		pslash = strchr(hit->origin, '/');
 		if (!pslash) {
@@ -1237,28 +1137,16 @@ lws_http_action(struct lws *wsi)
 				 hit->origin);
 			return -1;
 		}
+		if (pcolon > pslash)
+			pcolon = NULL;
 
-		if (unix_skt) {
-			if (!pcolon) {
-				lwsl_err("Proxy mount origin for unix skt must "
-					 "have address delimited by :\n");
-
-				return -1;
-			}
-			n = lws_ptr_diff(pcolon, hit->origin);
-			pslash = pcolon;
-		} else {
-			if (pcolon > pslash)
-				pcolon = NULL;
-
-			if (pcolon)
-				n = (int)(pcolon - hit->origin);
-			else
-				n = (int)(pslash - hit->origin);
+		if (pcolon)
+			n = pcolon - hit->origin;
+		else
+			n = pslash - hit->origin;
 
-			if (n >= (int)sizeof(ads) - 2)
-				n = sizeof(ads) - 2;
-		}
+		if (n >= (int)sizeof(ads) - 2)
+			n = sizeof(ads) - 2;
 
 		memcpy(ads, hit->origin, n);
 		ads[n] = '\0';
@@ -1272,75 +1160,41 @@ lws_http_action(struct lws *wsi)
 		if (pcolon)
 			i.port = atoi(pcolon + 1);
 
-		n = lws_snprintf(rpath, sizeof(rpath) - 1, "/%s/%s",
-				 pslash + 1, uri_ptr + hit->mountpoint_len) - 2;
+		lws_snprintf(rpath, sizeof(rpath) - 1, "/%s/%s", pslash + 1,
+			     uri_ptr + hit->mountpoint_len);
 		lws_clean_url(rpath);
 		na = lws_hdr_total_length(wsi, WSI_TOKEN_HTTP_URI_ARGS);
 		if (na) {
-			char *p = rpath + n;
-
-			if (na >= (int)sizeof(rpath) - n - 2) {
-				lwsl_info("%s: query string %d longer "
-					  "than we can handle\n", __func__,
-					  na);
-
-				return -1;
-			}
-
+			p = rpath + strlen(rpath);
 			*p++ = '?';
-			if (lws_hdr_copy(wsi, p,
-				     (int)(&rpath[sizeof(rpath) - 1] - p),
-				     WSI_TOKEN_HTTP_URI_ARGS) > 0)
-				while (na--) {
-					if (*p == '\0')
-						*p = '&';
-					p++;
-				}
-			*p = '\0';
+			lws_hdr_copy(wsi, p, &rpath[sizeof(rpath) - 1] - p,
+				     WSI_TOKEN_HTTP_URI_ARGS);
+			while (--na) {
+				if (*p == '\0')
+					*p = '&';
+				p++;
+			}
 		}
 
+
 		i.path = rpath;
-		if (i.address[0] != '+' ||
-		    !lws_hdr_simple_ptr(wsi, WSI_TOKEN_HOST))
-			i.host = i.address;
-		else
-			i.host = lws_hdr_simple_ptr(wsi, WSI_TOKEN_HOST);
+		i.host = i.address;
 		i.origin = NULL;
 		i.method = "GET";
-		i.alpn = "http/1.1";
 		i.parent_wsi = wsi;
-		i.pwsi = &cwsi;
-
-	//	i.uri_replace_from = hit->origin;
-	//	i.uri_replace_to = hit->mountpoint;
+		i.uri_replace_from = hit->origin;
+		i.uri_replace_to = hit->mountpoint;
 
-		lwsl_info("proxying to %s port %d url %s, ssl %d, "
+		lwsl_notice("proxying to %s port %d url %s, ssl %d, "
 			    "from %s, to %s\n",
 			    i.address, i.port, i.path, i.ssl_connection,
 			    i.uri_replace_from, i.uri_replace_to);
 
 		if (!lws_client_connect_via_info(&i)) {
 			lwsl_err("proxy connect fail\n");
-
-			/*
-			 * ... we can't do the proxy action, but we can
-			 * cleanly return him a 503 and a description
-			 */
-
-			lws_return_http_status(wsi,
-				HTTP_STATUS_SERVICE_UNAVAILABLE,
-				"<h1>Service Temporarily Unavailable</h1>"
-				"The server is temporarily unable to service "
-				"your request due to maintenance downtime or "
-				"capacity problems. Please try again later.");
-
 			return 1;
 		}
 
-		lwsl_info("%s: setting proxy clientside on %p (parent %p)\n",
-			  __func__, cwsi, lws_get_parent(cwsi));
-		cwsi->http.proxy_clientside = 1;
-
 		return 0;
 	}
 #endif
@@ -1365,7 +1219,7 @@ lws_http_action(struct lws *wsi)
 			return 1;
 		}
 
-		if (lws_bind_protocol(wsi, pp, "http action CALLBACK bind"))
+		if (lws_bind_protocol(wsi, pp))
 			return 1;
 
 		args.p = uri_ptr;
@@ -1391,7 +1245,7 @@ lws_http_action(struct lws *wsi)
 			return 1;
 
 		if (lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI)) {
-			m = wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP,
+			n = wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP,
 					    wsi->user_space,
 					    uri_ptr + hit->mountpoint_len,
 					    uri_len - hit->mountpoint_len);
@@ -1425,7 +1279,7 @@ lws_http_action(struct lws *wsi)
 	}
 #endif
 
-	n = uri_len - lws_ptr_diff(s, uri_ptr); // (int)strlen(s);
+	n = (int)strlen(s);
 	if (s[0] == '\0' || (n == 1 && s[n - 1] == '/'))
 		s = (char *)hit->def;
 	if (!s)
@@ -1436,11 +1290,10 @@ lws_http_action(struct lws *wsi)
 	wsi->cache_revalidate = hit->cache_revalidate;
 	wsi->cache_intermediaries = hit->cache_intermediaries;
 
-	m = 1;
+	n = 1;
 	if (hit->origin_protocol == LWSMPRO_FILE)
-		m = lws_http_serve(wsi, s, hit->origin, hit);
-
-	if (m > 0) {
+		n = lws_http_serve(wsi, s, hit->origin, hit);
+	if (n) {
 		/*
 		 * lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND, NULL);
 		 */
@@ -1449,22 +1302,20 @@ lws_http_action(struct lws *wsi)
 					lws_vhost_name_to_protocol(
 						wsi->vhost, hit->protocol);
 
-			lwsi_set_state(wsi, LRS_DOING_TRANSACTION);
-
-			if (lws_bind_protocol(wsi, pp, "http_action HTTP"))
+			if (lws_bind_protocol(wsi, pp))
 				return 1;
 
-			m = pp->callback(wsi, LWS_CALLBACK_HTTP,
+			n = pp->callback(wsi, LWS_CALLBACK_HTTP,
 					 wsi->user_space,
 					 uri_ptr + hit->mountpoint_len,
 					 uri_len - hit->mountpoint_len);
 		} else
-			m = wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP,
+			n = wsi->protocol->callback(wsi, LWS_CALLBACK_HTTP,
 				    wsi->user_space, uri_ptr, uri_len);
 	}
 
 after:
-	if (m) {
+	if (n) {
 		lwsl_info("LWS_CALLBACK_HTTP closing\n");
 
 		return 1;
@@ -1486,35 +1337,9 @@ deal_body:
 		lwsl_debug("wsi->http.rx_content_length %lld %d %d\n",
 			   (long long)wsi->http.rx_content_length,
 			   wsi->upgraded_to_http2, wsi->http2_substream);
-
-		if (wsi->http.content_length_explicitly_zero &&
-		    lws_hdr_total_length(wsi, WSI_TOKEN_POST_URI)) {
-
-			/*
-			 * POST with an explicit content-length of zero
-			 *
-			 * If we don't give the user code the empty HTTP_BODY
-			 * callback, he may become confused to hear the
-			 * HTTP_BODY_COMPLETION (due to, eg, instantiation of
-			 * lws_spa never happened).
-			 *
-			 * HTTP_BODY_COMPLETION is responsible for sending the
-			 * result status code and result body if any, and
-			 * do the transaction complete processing.
-			 */
-			if (wsi->protocol->callback(wsi,
-					LWS_CALLBACK_HTTP_BODY,
-					wsi->user_space, NULL, 0))
-				return 1;
-			if (wsi->protocol->callback(wsi,
-					LWS_CALLBACK_HTTP_BODY_COMPLETION,
-					wsi->user_space, NULL, 0))
-				return 1;
-
-			return 0;
-		}
-
 		if (wsi->http.rx_content_length > 0) {
+			struct lws_tokens ebuf;
+			int m;
 
 			lwsi_set_state(wsi, LRS_BODY);
 			lwsl_info("%s: %p: LRS_BODY state set (0x%x)\n",
@@ -1530,18 +1355,12 @@ deal_body:
 			 */
 
 			while (1) {
-				struct lws_tokens ebuf;
-				int m;
-
 				ebuf.len = (int)lws_buflist_next_segment_len(
-						&wsi->buflist,
-						(uint8_t **)&ebuf.token);
+						&wsi->buflist, (uint8_t **)&ebuf.token);
 				if (!ebuf.len)
 					break;
-				lwsl_notice("%s: consuming %d\n", __func__,
-							(int)ebuf.len);
-				m = lws_read_h1(wsi, (uint8_t *)ebuf.token,
-						ebuf.len);
+				lwsl_notice("%s: consuming %d\n", __func__, (int)ebuf.len);
+				m = lws_read_h1(wsi, (uint8_t *)ebuf.token, ebuf.len);
 				if (m < 0)
 					return -1;
 
@@ -1565,75 +1384,6 @@ transaction_result_n:
 }
 
 int
-lws_confirm_host_header(struct lws *wsi)
-{
-	struct lws_tokenize ts;
-	lws_tokenize_elem e;
-	char buf[128];
-	int port = 80;
-
-	/*
-	 * this vhost wants us to validate what the
-	 * client sent against our vhost name
-	 */
-
-	if (!lws_hdr_total_length(wsi, WSI_TOKEN_HOST)) {
-		lwsl_info("%s: missing host on upgrade\n", __func__);
-
-		return 1;
-	}
-
-#if defined(LWS_WITH_TLS)
-	if (wsi->tls.ssl)
-		port = 443;
-#endif
-
-	lws_tokenize_init(&ts, buf, LWS_TOKENIZE_F_DOT_NONTERM /* server.com */|
-				    LWS_TOKENIZE_F_NO_FLOATS /* 1.server.com */|
-				    LWS_TOKENIZE_F_MINUS_NONTERM /* a-b.com */);
-	ts.len = lws_hdr_copy(wsi, buf, sizeof(buf) - 1, WSI_TOKEN_HOST);
-	if (ts.len <= 0) {
-		lwsl_info("%s: missing or oversize host header\n", __func__);
-		return 1;
-	}
-
-	if (lws_tokenize(&ts) != LWS_TOKZE_TOKEN)
-		goto bad_format;
-
-	if (strncmp(ts.token, wsi->vhost->name, ts.token_len)) {
-		buf[(ts.token - buf) + ts.token_len] = '\0';
-		lwsl_info("%s: '%s' in host hdr but vhost name %s\n",
-			  __func__, ts.token, wsi->vhost->name);
-		return 1;
-	}
-
-	e = lws_tokenize(&ts);
-	if (e == LWS_TOKZE_DELIMITER && ts.token[0] == ':') {
-		if (lws_tokenize(&ts) != LWS_TOKZE_INTEGER)
-			goto bad_format;
-		else
-			port = atoi(ts.token);
-	} else
-		if (e != LWS_TOKZE_ENDED)
-			goto bad_format;
-
-	if (wsi->vhost->listen_port != port) {
-		lwsl_info("%s: host port %d mismatches vhost port %d\n",
-			  __func__, port, wsi->vhost->listen_port);
-		return 1;
-	}
-
-	lwsl_debug("%s: host header OK\n", __func__);
-
-	return 0;
-
-bad_format:
-	lwsl_info("%s: bad host header format\n", __func__);
-
-	return 1;
-}
-
-int
 lws_handshake_server(struct lws *wsi, unsigned char **buf, size_t len)
 {
 	struct lws_context *context = lws_get_context(wsi);
@@ -1677,8 +1427,7 @@ raw_transition:
 				lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
 				lws_bind_protocol(wsi, &wsi->vhost->protocols[
 				                        wsi->vhost->
-				                        raw_protocol_index],
-						__func__);
+				                        raw_protocol_index]);
 				lwsl_info("transition to raw vh %s prot %d\n",
 					  wsi->vhost->name,
 					  wsi->vhost->raw_protocol_index);
@@ -1691,7 +1440,7 @@ raw_transition:
 						    &role_ops_raw_skt);
 				lws_header_table_detach(wsi, 1);
 
-				if (wsi->protocol->callback(wsi,
+				if (m == 2 && (wsi->protocol->callback)(wsi,
 						LWS_CALLBACK_RAW_RX,
 						wsi->user_space, obuf, olen))
 					return 1;
@@ -1709,14 +1458,13 @@ raw_transition:
 
 		/* select vhost */
 
-		if (wsi->vhost->listen_port &&
-		    lws_hdr_total_length(wsi, WSI_TOKEN_HOST)) {
+		if (lws_hdr_total_length(wsi, WSI_TOKEN_HOST)) {
 			struct lws_vhost *vhost = lws_select_vhost(
 				context, wsi->vhost->listen_port,
 				lws_hdr_simple_ptr(wsi, WSI_TOKEN_HOST));
 
 			if (vhost)
-				lws_vhost_bind_wsi(vhost, wsi);
+				wsi->vhost = vhost;
 		} else
 			lwsl_info("no host\n");
 
@@ -1758,7 +1506,7 @@ raw_transition:
 							&uri_ptr, &uri_len);
 					if (meth >= 0)
 						lws_prepare_access_log_info(wsi,
-							uri_ptr, uri_len, meth);
+								uri_ptr, meth);
 
 					/* wsi close will do the log */
 #endif
@@ -1784,49 +1532,12 @@ raw_transition:
 		lwsi_set_state(wsi, LRS_PRE_WS_SERVING_ACCEPT);
 		lws_set_timeout(wsi, NO_PENDING_TIMEOUT, 0);
 
-		if (lws_hdr_total_length(wsi, WSI_TOKEN_UPGRADE)) {
-
-			const char *up = lws_hdr_simple_ptr(wsi,
-							    WSI_TOKEN_UPGRADE);
-
-			if (strcasecmp(up, "websocket") &&
-			    strcasecmp(up, "h2c")) {
-				lwsl_info("Unknown upgrade '%s'\n", up);
-
-				if (lws_return_http_status(wsi,
-						HTTP_STATUS_FORBIDDEN, NULL) ||
-				    lws_http_transaction_completed(wsi))
-					goto bail_nuke_ah;
-			}
-
-			n = user_callback_handle_rxflow(wsi->protocol->callback,
-					wsi, LWS_CALLBACK_HTTP_CONFIRM_UPGRADE,
-					wsi->user_space, (char *)up, 0);
-
-			/* just hang up? */
-
-			if (n < 0)
-				goto bail_nuke_ah;
-
-			/* callback returned headers already, do t_c? */
-
-			if (n > 0) {
-				if (lws_http_transaction_completed(wsi))
-					goto bail_nuke_ah;
-
-				/* continue on */
-
-				return 0;
-			}
-
-			/* callback said 0, it was allowed */
+		/* is this websocket protocol or normal http 1.0? */
 
-			if (wsi->vhost->options &
-			    LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK &&
-			    lws_confirm_host_header(wsi))
-				goto bail_nuke_ah;
-
-			if (!strcasecmp(up, "websocket")) {
+		if (lws_hdr_total_length(wsi, WSI_TOKEN_UPGRADE)) {
+			if (!strcasecmp(lws_hdr_simple_ptr(wsi,
+							   WSI_TOKEN_UPGRADE),
+					"websocket")) {
 #if defined(LWS_ROLE_WS)
 				wsi->vhost->conn_stats.ws_upg++;
 				lwsl_info("Upgrade to ws\n");
@@ -1834,12 +1545,17 @@ raw_transition:
 #endif
 			}
 #if defined(LWS_WITH_HTTP2)
-			if (!strcasecmp(up, "h2c")) {
+			if (!strcasecmp(lws_hdr_simple_ptr(wsi,
+							   WSI_TOKEN_UPGRADE),
+					"h2c")) {
 				wsi->vhost->conn_stats.h2_upg++;
 				lwsl_info("Upgrade to h2c\n");
 				goto upgrade_h2c;
 			}
 #endif
+			lwsl_info("Unknown upgrade\n");
+			/* dunno what he wanted to upgrade to */
+			goto bail_nuke_ah;
 		}
 
 		/* no upgrade ack... he remained as HTTP */
@@ -1849,10 +1565,6 @@ raw_transition:
 		lwsi_set_state(wsi, LRS_ESTABLISHED);
 		wsi->http.fop_fd = NULL;
 
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-		lws_http_compression_validate(wsi);
-#endif
-
 		lwsl_debug("%s: wsi %p: ah %p\n", __func__, (void *)wsi,
 			   (void *)wsi->http.ah);
 
@@ -1929,17 +1641,91 @@ bail_nuke_ah:
 }
 
 
+static int
+lws_get_idlest_tsi(struct lws_context *context)
+{
+	unsigned int lowest = ~0;
+	int n = 0, hit = -1;
+
+	for (; n < context->count_threads; n++) {
+		if ((unsigned int)context->pt[n].fds_count !=
+		    context->fd_limit_per_thread - 1 &&
+		    (unsigned int)context->pt[n].fds_count < lowest) {
+			lowest = context->pt[n].fds_count;
+			hit = n;
+		}
+	}
+
+	return hit;
+}
+
+struct lws *
+lws_create_new_server_wsi(struct lws_vhost *vhost, int fixed_tsi)
+{
+	struct lws *new_wsi;
+	int n = fixed_tsi;
+
+	if (n < 0)
+		n = lws_get_idlest_tsi(vhost->context);
+
+	if (n < 0) {
+		lwsl_err("no space for new conn\n");
+		return NULL;
+	}
+
+	new_wsi = lws_zalloc(sizeof(struct lws), "new server wsi");
+	if (new_wsi == NULL) {
+		lwsl_err("Out of memory for new connection\n");
+		return NULL;
+	}
+
+	new_wsi->tsi = n;
+	lwsl_debug("new wsi %p joining vhost %s, tsi %d\n", new_wsi,
+		   vhost->name, new_wsi->tsi);
+
+	new_wsi->vhost = vhost;
+	new_wsi->context = vhost->context;
+	new_wsi->pending_timeout = NO_PENDING_TIMEOUT;
+	new_wsi->rxflow_change_to = LWS_RXFLOW_ALLOW;
+
+	/* initialize the instance struct */
+
+	lwsi_set_state(new_wsi, LRS_UNCONNECTED);
+	new_wsi->hdr_parsing_completed = 0;
+
+#ifdef LWS_WITH_TLS
+	new_wsi->tls.use_ssl = LWS_SSL_ENABLED(vhost);
+#endif
+
+	/*
+	 * these can only be set once the protocol is known
+	 * we set an un-established connection's protocol pointer
+	 * to the start of the supported list, so it can look
+	 * for matching ones during the handshake
+	 */
+	new_wsi->protocol = vhost->protocols;
+	new_wsi->user_space = NULL;
+	new_wsi->desc.sockfd = LWS_SOCK_INVALID;
+	new_wsi->position_in_fds_table = LWS_NO_FDS_POS;
+
+	vhost->context->count_wsi_allocated++;
+
+	/*
+	 * outermost create notification for wsi
+	 * no user_space because no protocol selection
+	 */
+	vhost->protocols[0].callback(new_wsi, LWS_CALLBACK_WSI_CREATE,
+				       NULL, NULL, 0);
+
+	return new_wsi;
+}
+
 LWS_VISIBLE int LWS_WARN_UNUSED_RESULT
 lws_http_transaction_completed(struct lws *wsi)
 {
 	int n = NO_PENDING_TIMEOUT;
 
-	if (lws_has_buffered_out(wsi)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-			|| wsi->http.comp_ctx.buflist_comp ||
-	    wsi->http.comp_ctx.may_have_more
-#endif
-	) {
+	if (wsi->trunc_len) {
 		/*
 		 * ...so he tried to send something large as the http reply,
 		 * it went as a partial, but he immediately said the
@@ -1948,18 +1734,14 @@ lws_http_transaction_completed(struct lws *wsi)
 		 * Defer the transaction completed until the last part of the
 		 * partial is sent.
 		 */
-		lwsl_debug("%s: %p: deferring due to partial\n", __func__, wsi);
+		lwsl_notice("%s: deferring due to partial\n", __func__);
 		wsi->http.deferred_transaction_completed = 1;
-		lws_callback_on_writable(wsi);
 
 		return 0;
 	}
 
 	lwsl_info("%s: wsi %p\n", __func__, wsi);
 
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	lws_http_compression_destroy(wsi);
-#endif
 	lws_access_log(wsi);
 
 	if (!wsi->hdr_parsing_completed) {
@@ -1973,17 +1755,17 @@ lws_http_transaction_completed(struct lws *wsi)
 
 	/* if we can't go back to accept new headers, drop the connection */
 	if (wsi->http2_substream)
-		return 1;
+		return 0;
 
 	if (wsi->seen_zero_length_recv)
 		return 1;
 
-	if (wsi->http.conn_type != HTTP_CONNECTION_KEEP_ALIVE) {
-		lwsl_info("%s: %p: close connection\n", __func__, wsi);
+	if (wsi->http.connection_type != HTTP_CONNECTION_KEEP_ALIVE) {
+		lwsl_notice("%s: %p: close connection\n", __func__, wsi);
 		return 1;
 	}
 
-	if (lws_bind_protocol(wsi, &wsi->vhost->protocols[0], __func__))
+	if (lws_bind_protocol(wsi, &wsi->vhost->protocols[0]))
 		return 1;
 
 	/*
@@ -1998,7 +1780,6 @@ lws_http_transaction_completed(struct lws *wsi)
 	wsi->http.tx_content_length = 0;
 	wsi->http.tx_content_remain = 0;
 	wsi->hdr_parsing_completed = 0;
-	wsi->sending_chunked = 0;
 #ifdef LWS_WITH_ACCESS_LOG
 	wsi->http.access_log.sent = 0;
 #endif
@@ -2022,7 +1803,7 @@ lws_http_transaction_completed(struct lws *wsi)
 	if (wsi->http.ah) {
 		// lws_buflist_describe(&wsi->buflist, wsi);
 		if (!lws_buflist_next_segment_len(&wsi->buflist, NULL)) {
-			lwsl_debug("%s: %p: nothing in buflist, detaching ah\n",
+			lwsl_info("%s: %p: nothing in buflist so detaching ah\n",
 				  __func__, wsi);
 			lws_header_table_detach(wsi, 1);
 #ifdef LWS_WITH_TLS
@@ -2042,7 +1823,7 @@ lws_http_transaction_completed(struct lws *wsi)
 			}
 #endif
 		} else {
-			lwsl_info("%s: %p: resetting/keeping ah as pipeline\n",
+			lwsl_info("%s: %p: resetting and keeping ah as pipeline\n",
 				  __func__, wsi);
 			lws_header_table_reset(wsi, 0);
 			/*
@@ -2058,41 +1839,360 @@ lws_http_transaction_completed(struct lws *wsi)
 		if (wsi->http.ah)
 			wsi->http.ah->ues = URIES_IDLE;
 
-		//lwsi_set_state(wsi, LRS_ESTABLISHED); // !!!
+		//lwsi_set_state(wsi, LRS_ESTABLISHED);
 	} else
 		if (lws_buflist_next_segment_len(&wsi->buflist, NULL))
 			if (lws_header_table_attach(wsi, 0))
 				lwsl_debug("acquired ah\n");
 
-	lwsl_debug("%s: %p: keep-alive await new transaction (state 0x%x)\n",
-			__func__, wsi, wsi->wsistate);
+	lwsl_info("%s: %p: keep-alive await new transaction\n", __func__, wsi);
 	lws_callback_on_writable(wsi);
 
 	return 0;
 }
 
+/* if not a socket, it's a raw, non-ssl file descriptor */
+
+LWS_VISIBLE struct lws *
+lws_adopt_descriptor_vhost(struct lws_vhost *vh, lws_adoption_type type,
+			   lws_sock_file_fd_type fd, const char *vh_prot_name,
+			   struct lws *parent)
+{
+	struct lws_context *context = vh->context;
+	struct lws *new_wsi;
+	struct lws_context_per_thread *pt;
+	int n, ssl = 0;
+
+#if defined(LWS_WITH_PEER_LIMITS)
+	struct lws_peer *peer = NULL;
+
+	if (type & LWS_ADOPT_SOCKET && !(type & LWS_ADOPT_WS_PARENTIO)) {
+		peer = lws_get_or_create_peer(vh, fd.sockfd);
+
+		if (peer && context->ip_limit_wsi &&
+		    peer->count_wsi >= context->ip_limit_wsi) {
+			lwsl_notice("Peer reached wsi limit %d\n",
+					context->ip_limit_wsi);
+			lws_stats_atomic_bump(context, &context->pt[0],
+					      LWSSTATS_C_PEER_LIMIT_WSI_DENIED, 1);
+			return NULL;
+		}
+	}
+#endif
+
+	n = -1;
+	if (parent)
+		n = parent->tsi;
+	new_wsi = lws_create_new_server_wsi(vh, n);
+	if (!new_wsi) {
+		if (type & LWS_ADOPT_SOCKET && !(type & LWS_ADOPT_WS_PARENTIO))
+			compatible_close(fd.sockfd);
+		return NULL;
+	}
+#if defined(LWS_WITH_PEER_LIMITS)
+	if (peer)
+		lws_peer_add_wsi(context, peer, new_wsi);
+#endif
+	pt = &context->pt[(int)new_wsi->tsi];
+	lws_stats_atomic_bump(context, pt, LWSSTATS_C_CONNECTIONS, 1);
+
+	if (parent) {
+		new_wsi->parent = parent;
+		new_wsi->sibling_list = parent->child_list;
+		parent->child_list = new_wsi;
+
+		if (type & LWS_ADOPT_WS_PARENTIO)
+			new_wsi->parent_carries_io = 1;
+	}
+
+	new_wsi->desc = fd;
+
+	if (vh_prot_name) {
+		new_wsi->protocol = lws_vhost_name_to_protocol(new_wsi->vhost,
+							       vh_prot_name);
+		if (!new_wsi->protocol) {
+			lwsl_err("Protocol %s not enabled on vhost %s\n",
+				 vh_prot_name, new_wsi->vhost->name);
+			goto bail;
+		}
+               if (lws_ensure_user_space(new_wsi)) {
+                       lwsl_notice("OOM trying to get user_space\n");
+			goto bail;
+               }
+#if defined(LWS_ROLE_WS)
+               if (type & LWS_ADOPT_WS_PARENTIO) {
+			new_wsi->desc.sockfd = LWS_SOCK_INVALID;
+			lwsl_debug("binding to %s\n", new_wsi->protocol->name);
+			lws_bind_protocol(new_wsi, new_wsi->protocol);
+			lws_role_transition(new_wsi, LWSIFR_SERVER,
+					    LRS_ESTABLISHED, &role_ops_ws);
+			/* allocate the ws struct for the wsi */
+			new_wsi->ws = lws_zalloc(sizeof(*new_wsi->ws), "ws struct");
+			if (!new_wsi->ws) {
+				lwsl_notice("OOM\n");
+				goto bail;
+			}
+			lws_server_init_wsi_for_ws(new_wsi);
+
+			return new_wsi;
+               }
+#endif
+	} else
+#if defined(LWS_ROLE_H1)
+		if (type & LWS_ADOPT_HTTP) {/* he will transition later */
+			new_wsi->protocol =
+				&vh->protocols[vh->default_protocol_index];
+			new_wsi->role_ops = &role_ops_h1;
+		}
+		else
+#endif
+		{ /* this is the only time he will transition */
+			lws_bind_protocol(new_wsi,
+				&vh->protocols[vh->raw_protocol_index]);
+			lws_role_transition(new_wsi, 0, LRS_ESTABLISHED,
+					    &role_ops_raw_skt);
+		}
+
+	if (type & LWS_ADOPT_SOCKET) { /* socket desc */
+		lwsl_debug("%s: new wsi %p, sockfd %d\n", __func__, new_wsi,
+			   (int)(lws_intptr_t)fd.sockfd);
+#if !defined(LWS_WITH_ESP32)
+		if (type & LWS_ADOPT_FLAG_UDP)
+			/*
+			 * these can be >128 bytes, so just alloc for UDP
+			 */
+			new_wsi->udp = lws_malloc(sizeof(*new_wsi->udp),
+						     "udp struct");
+#endif
+
+		if (type & LWS_ADOPT_HTTP)
+			/* the transport is accepted...
+			 * give him time to negotiate */
+			lws_set_timeout(new_wsi,
+					PENDING_TIMEOUT_ESTABLISH_WITH_SERVER,
+					context->timeout_secs);
+
+	} else /* file desc */
+		lwsl_debug("%s: new wsi %p, filefd %d\n", __func__, new_wsi,
+			   (int)(lws_intptr_t)fd.filefd);
+
+	/*
+	 * A new connection was accepted. Give the user a chance to
+	 * set properties of the newly created wsi. There's no protocol
+	 * selected yet so we issue this to the vhosts's default protocol,
+	 * itself by default protocols[0]
+	 */
+	n = LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED;
+	if (!(type & LWS_ADOPT_HTTP)) {
+		if (!(type & LWS_ADOPT_SOCKET))
+			n = LWS_CALLBACK_RAW_ADOPT_FILE;
+		else
+			n = LWS_CALLBACK_RAW_ADOPT;
+	}
+
+	if (!LWS_SSL_ENABLED(new_wsi->vhost) || !(type & LWS_ADOPT_ALLOW_SSL) ||
+	    !(type & LWS_ADOPT_SOCKET)) {
+		/* non-SSL */
+		if (!(type & LWS_ADOPT_HTTP)) {
+			if (!(type & LWS_ADOPT_SOCKET))
+				lws_role_transition(new_wsi, 0, LRS_ESTABLISHED,
+						    &role_ops_raw_file);
+			else
+				lws_role_transition(new_wsi, 0, LRS_ESTABLISHED,
+						    &role_ops_raw_skt);
+		}
+#if defined(LWS_ROLE_H1)
+		else
+			lws_role_transition(new_wsi, LWSIFR_SERVER,
+					    LRS_HEADERS, &role_ops_h1);
+#endif
+	} else {
+		/* SSL */
+		if (!(type & LWS_ADOPT_HTTP))
+			lws_role_transition(new_wsi, 0, LRS_SSL_INIT,
+					    &role_ops_raw_skt);
+#if defined(LWS_ROLE_H1)
+		else
+			lws_role_transition(new_wsi, LWSIFR_SERVER,
+					    LRS_SSL_INIT, &role_ops_h1);
+#endif
+		ssl = 1;
+	}
+
+	lwsl_debug("new wsi wsistate 0x%x\n", new_wsi->wsistate);
+
+	if (context->event_loop_ops->accept)
+		context->event_loop_ops->accept(new_wsi);
+
+	if (!ssl) {
+		lws_pt_lock(pt, __func__);
+		if (__insert_wsi_socket_into_fds(context, new_wsi)) {
+			lws_pt_unlock(pt);
+			lwsl_err("%s: fail inserting socket\n", __func__);
+			goto fail;
+		}
+		lws_pt_unlock(pt);
+	} else
+		if (lws_server_socket_service_ssl(new_wsi, fd.sockfd)) {
+			lwsl_info("%s: fail ssl negotiation\n", __func__);
+			goto fail;
+		}
+
+	/*
+	 *  by deferring callback to this point, after insertion to fds,
+	 * lws_callback_on_writable() can work from the callback
+	 */
+	if ((new_wsi->protocol->callback)(
+			new_wsi, n, new_wsi->user_space, NULL, 0))
+		goto fail;
+
+	if (type & LWS_ADOPT_HTTP) {
+		if (!lws_header_table_attach(new_wsi, 0))
+			lwsl_debug("Attached ah immediately\n");
+		else
+			lwsl_info("%s: waiting for ah\n", __func__);
+	}
+
+	lws_cancel_service_pt(new_wsi);
+
+	return new_wsi;
+
+fail:
+	if (type & LWS_ADOPT_SOCKET)
+		lws_close_free_wsi(new_wsi, LWS_CLOSE_STATUS_NOSTATUS, "adopt skt fail");
+
+	return NULL;
+
+bail:
+       lwsl_notice("%s: exiting on bail\n", __func__);
+	if (parent)
+		parent->child_list = new_wsi->sibling_list;
+	if (new_wsi->user_space)
+		lws_free(new_wsi->user_space);
+	lws_free(new_wsi);
+       compatible_close(fd.sockfd);
+
+	return NULL;
+}
+
+LWS_VISIBLE struct lws *
+lws_adopt_socket_vhost(struct lws_vhost *vh, lws_sockfd_type accept_fd)
+{
+	lws_sock_file_fd_type fd;
+
+	fd.sockfd = accept_fd;
+	return lws_adopt_descriptor_vhost(vh, LWS_ADOPT_SOCKET |
+			LWS_ADOPT_HTTP | LWS_ADOPT_ALLOW_SSL, fd, NULL, NULL);
+}
+
+LWS_VISIBLE struct lws *
+lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd)
+{
+	return lws_adopt_socket_vhost(context->vhost_list, accept_fd);
+}
+
+/* Common read-buffer adoption for lws_adopt_*_readbuf */
+static struct lws*
+adopt_socket_readbuf(struct lws *wsi, const char *readbuf, size_t len)
+{
+	struct lws_context_per_thread *pt;
+	struct lws_pollfd *pfd;
+	int n;
+
+	if (!wsi)
+		return NULL;
+
+	if (!readbuf || len == 0)
+		return wsi;
+
+	if (wsi->position_in_fds_table == LWS_NO_FDS_POS)
+		return wsi;
+
+	pt = &wsi->context->pt[(int)wsi->tsi];
+
+	n = lws_buflist_append_segment(&wsi->buflist, (const uint8_t *)readbuf, len);
+	if (n < 0)
+		goto bail;
+	if (n)
+		lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
+
+	/*
+	 * we can't process the initial read data until we can attach an ah.
+	 *
+	 * if one is available, get it and place the data in his ah rxbuf...
+	 * wsi with ah that have pending rxbuf get auto-POLLIN service.
+	 *
+	 * no autoservice because we didn't get a chance to attach the
+	 * readbuf data to wsi or ah yet, and we will do it next if we get
+	 * the ah.
+	 */
+	if (wsi->http.ah || !lws_header_table_attach(wsi, 0)) {
+
+		lwsl_notice("%s: calling service on readbuf ah\n", __func__);
+
+		/* unlike a normal connect, we have the headers already
+		 * (or the first part of them anyway).
+		 * libuv won't come back and service us without a network
+		 * event, so we need to do the header service right here.
+		 */
+		pfd = &pt->fds[wsi->position_in_fds_table];
+		pfd->revents |= LWS_POLLIN;
+		lwsl_err("%s: calling service\n", __func__);
+		if (lws_service_fd_tsi(wsi->context, pfd, wsi->tsi))
+			/* service closed us */
+			return NULL;
+
+		return wsi;
+	}
+	lwsl_err("%s: deferring handling ah\n", __func__);
+
+	return wsi;
+
+bail:
+	lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "adopt skt readbuf fail");
+
+	return NULL;
+}
+
+LWS_VISIBLE struct lws *
+lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
+			 const char *readbuf, size_t len)
+{
+        return adopt_socket_readbuf(lws_adopt_socket(context, accept_fd),
+        			    readbuf, len);
+}
+
+LWS_VISIBLE struct lws *
+lws_adopt_socket_vhost_readbuf(struct lws_vhost *vhost,
+			       lws_sockfd_type accept_fd,
+			       const char *readbuf, size_t len)
+{
+        return adopt_socket_readbuf(lws_adopt_socket_vhost(vhost, accept_fd),
+        			    readbuf, len);
+}
 
 LWS_VISIBLE int
 lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
 		    const char *other_headers, int other_headers_len)
 {
+	static const char * const intermediates[] = { "private", "public" };
 	struct lws_context *context = lws_get_context(wsi);
 	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
-	unsigned char *response = pt->serv_buf + LWS_PRE;
 #if defined(LWS_WITH_RANGES)
 	struct lws_range_parsing *rp = &wsi->http.range;
 #endif
-	int ret = 0, cclen = 8, n = HTTP_STATUS_OK;
 	char cache_control[50], *cc = "no-store";
-	lws_fop_flags_t fflags = LWS_O_RDONLY;
-	const struct lws_plat_file_ops *fops;
-	lws_filepos_t total_content_length;
+	unsigned char *response = pt->serv_buf + LWS_PRE;
 	unsigned char *p = response;
 	unsigned char *end = p + context->pt_serv_buf_size - LWS_PRE;
-	const char *vpath;
+	lws_filepos_t total_content_length;
+	int ret = 0, cclen = 8, n = HTTP_STATUS_OK;
+	lws_fop_flags_t fflags = LWS_O_RDONLY;
 #if defined(LWS_WITH_RANGES)
 	int ranges;
 #endif
+	const struct lws_plat_file_ops *fops;
+	const char *vpath;
 
 	if (wsi->handling_404)
 		n = HTTP_STATUS_NOT_FOUND;
@@ -2112,8 +2212,7 @@ lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
 		if (!wsi->http.fop_fd) {
 			lwsl_info("%s: Unable to open: '%s': errno %d\n",
 				  __func__, file, errno);
-			if (lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND,
-						   NULL))
+			if (lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND, NULL))
 						return -1;
 			return !wsi->http2_substream;
 		}
@@ -2134,14 +2233,14 @@ lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
 	 */
 	if (ranges < 0) {
 		/* it means he expressed a range in Range:, but it was illegal */
-		lws_return_http_status(wsi,
-				HTTP_STATUS_REQ_RANGE_NOT_SATISFIABLE, NULL);
+		lws_return_http_status(wsi, HTTP_STATUS_REQ_RANGE_NOT_SATISFIABLE,
+				       NULL);
 		if (lws_http_transaction_completed(wsi))
 			return -1; /* <0 means just hang up */
 
 		lws_vfs_file_close(&wsi->http.fop_fd);
 
-		return 0; /* == 0 means we did the transaction complete */
+		return 0; /* == 0 means we dealt with the transaction complete */
 	}
 	if (ranges)
 		n = HTTP_STATUS_PARTIAL_CONTENT;
@@ -2159,20 +2258,6 @@ lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
 			return -1;
 		lwsl_info("file is being provided in gzip\n");
 	}
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	else {
-		/*
-		 * if we know its very compressible, and we can use
-		 * compression, then use the most preferred compression
-		 * method that the client said he will accept
-		 */
-
-		if (!strncmp(content_type, "text/", 5) ||
-		    !strcmp(content_type, "application/javascript") ||
-		    !strcmp(content_type, "image/svg+xml"))
-			lws_http_compression_apply(wsi, NULL, &p, end, 0);
-	}
-#endif
 
 	if (
 #if defined(LWS_WITH_RANGES)
@@ -2254,78 +2339,40 @@ lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
 #endif
 
 	if (!wsi->http2_substream) {
-		/* for http/1.1 ... */
-		if (!wsi->sending_chunked
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-				&& !wsi->http.lcs
-#endif
-		) {
-			/* ... if not already using chunked and not using an
-			 * http compression translation, then send the naive
-			 * content length
-			 */
+		if (!wsi->sending_chunked) {
 			if (lws_add_http_header_content_length(wsi,
-						total_content_length, &p, end))
+						total_content_length,
+					       &p, end))
 				return -1;
 		} else {
-
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-			if (wsi->http.lcs) {
-
-				/* ...otherwise, for http 1 it must go chunked.
-				 * For the compression case, the reason is we
-				 * compress on the fly and do not know the
-				 * compressed content-length until it has all
-				 * been sent.  Http/1.1 pipelining must be able
-				 * to know where the transaction boundaries are
-				 * ... so chunking...
-				 */
-				if (lws_add_http_header_by_token(wsi,
-						WSI_TOKEN_HTTP_TRANSFER_ENCODING,
-						(unsigned char *)"chunked", 7,
-						&p, end))
-					return -1;
-
-				/*
-				 * ...this is fun, isn't it :-)  For h1 that is
-				 * using an http compression translation, the
-				 * compressor must chunk its output privately.
-				 *
-				 * h2 doesn't need (or support) any of this
-				 * crap.
-				 */
-				lwsl_debug("setting chunking\n");
-				wsi->http.comp_ctx.chunking = 1;
-			}
-#endif
+			if (lws_add_http_header_by_token(wsi,
+						 WSI_TOKEN_HTTP_TRANSFER_ENCODING,
+						 (unsigned char *)"chunked",
+						 7, &p, end))
+				return -1;
 		}
 	}
 
 	if (wsi->cache_secs && wsi->cache_reuse) {
-		if (!wsi->cache_revalidate) {
+		if (wsi->cache_revalidate) {
 			cc = cache_control;
-			cclen = sprintf(cache_control, "%s, max-age=%u",
+			cclen = sprintf(cache_control, "%s max-age: %u",
 				    intermediates[wsi->cache_intermediaries],
 				    wsi->cache_secs);
 		} else {
-			cc = cache_control;
-			cclen = sprintf(cache_control,
-					"must-revalidate, %s, max-age=%u",
-                                intermediates[wsi->cache_intermediaries],
-                                                    wsi->cache_secs);
-
+			cc = "no-cache";
+			cclen = 8;
 		}
 	}
 
-	/* Only add cache control if its not specified by any other_headers. */
-	if (!other_headers ||
-	    (!strstr(other_headers, "cache-control") &&
-	     !strstr(other_headers, "Cache-Control"))) {
-		if (lws_add_http_header_by_token(wsi,
-				WSI_TOKEN_HTTP_CACHE_CONTROL,
-				(unsigned char *)cc, cclen, &p, end))
+	if (lws_add_http_header_by_token(wsi, WSI_TOKEN_HTTP_CACHE_CONTROL,
+			(unsigned char *)cc, cclen, &p, end))
+		return -1;
+
+	if (wsi->http.connection_type == HTTP_CONNECTION_KEEP_ALIVE)
+		if (lws_add_http_header_by_token(wsi, WSI_TOKEN_CONNECTION,
+				(unsigned char *)"keep-alive", 10, &p, end))
 			return -1;
-	}
 
 	if (other_headers) {
 		if ((end - p) < other_headers_len)
@@ -2368,37 +2415,16 @@ LWS_VISIBLE int lws_serve_http_file_fragment(struct lws *wsi)
 
 	do {
 
-		/* priority 1: buffered output */
-
-		if (lws_has_buffered_out(wsi)) {
-			if (lws_issue_raw(wsi, NULL, 0) < 0) {
+		if (wsi->trunc_len) {
+			if (lws_issue_raw(wsi, wsi->trunc_alloc +
+					  wsi->trunc_offset,
+					  wsi->trunc_len) < 0) {
 				lwsl_info("%s: closing\n", __func__);
 				goto file_had_it;
 			}
 			break;
 		}
 
-		/* priority 2: buffered pre-compression-transform */
-
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-	if (wsi->http.comp_ctx.buflist_comp ||
-	    wsi->http.comp_ctx.may_have_more) {
-		enum lws_write_protocol wp = LWS_WRITE_HTTP;
-
-		lwsl_info("%s: completing comp partial (buflist %p, may %d)\n",
-			   __func__, wsi->http.comp_ctx.buflist_comp,
-			   wsi->http.comp_ctx.may_have_more);
-
-		if (wsi->role_ops->write_role_protocol(wsi, NULL, 0, &wp) < 0) {
-			lwsl_info("%s signalling to close\n", __func__);
-			goto file_had_it;
-		}
-		lws_callback_on_writable(wsi);
-
-		break;
-	}
-#endif
-
 		if (wsi->http.filepos == wsi->http.filelen)
 			goto all_sent;
 
@@ -2427,8 +2453,7 @@ LWS_VISIBLE int lws_serve_http_file_fragment(struct lws *wsi)
 						LWS_H2_FRAME_HEADER_LENGTH,
 					"_lws\x0d\x0a"
 					"Content-Type: %s\x0d\x0a"
-					"Content-Range: bytes "
-						"%llu-%llu/%llu\x0d\x0a"
+					"Content-Range: bytes %llu-%llu/%llu\x0d\x0a"
 					"\x0d\x0a",
 					wsi->http.multipart_content_type,
 					wsi->http.range.start,
@@ -2443,8 +2468,7 @@ LWS_VISIBLE int lws_serve_http_file_fragment(struct lws *wsi)
 		}
 #endif
 
-		poss = context->pt_serv_buf_size - n -
-				LWS_H2_FRAME_HEADER_LENGTH;
+		poss = context->pt_serv_buf_size - n - LWS_H2_FRAME_HEADER_LENGTH;
 
 		if (wsi->http.tx_content_length)
 			if (poss > wsi->http.tx_content_remain)
@@ -2532,9 +2556,11 @@ LWS_VISIBLE int lws_serve_http_file_fragment(struct lws *wsi)
 				lwsl_debug("added trailing boundary\n");
 			}
 #endif
-			m = lws_write(wsi, p, n, wsi->http.filepos + amount ==
-					wsi->http.filelen ?
-					 LWS_WRITE_HTTP_FINAL : LWS_WRITE_HTTP);
+			m = lws_write(wsi, p, n,
+				      wsi->http.filepos + amount == wsi->http.filelen ?
+					LWS_WRITE_HTTP_FINAL :
+					LWS_WRITE_HTTP
+				);
 			if (m < 0)
 				goto file_had_it;
 
@@ -2566,18 +2592,12 @@ LWS_VISIBLE int lws_serve_http_file_fragment(struct lws *wsi)
 		}
 
 all_sent:
-		if ((!lws_has_buffered_out(wsi)
-#if defined(LWS_WITH_HTTP_STREAM_COMPRESSION)
-				&& !wsi->http.comp_ctx.buflist_comp &&
-		    !wsi->http.comp_ctx.may_have_more
-#endif
-		    ) && (wsi->http.filepos >= wsi->http.filelen
+		if ((!wsi->trunc_len && wsi->http.filepos >= wsi->http.filelen)
 #if defined(LWS_WITH_RANGES)
 		    || finished)
 #else
 		)
 #endif
-		)
 		     {
 			lwsi_set_state(wsi, LRS_ESTABLISHED);
 			/* we might be in keepalive, so close it off here */
@@ -2587,8 +2607,9 @@ all_sent:
 
 			if (wsi->protocol->callback &&
 			    user_callback_handle_rxflow(wsi->protocol->callback,
-					wsi, LWS_CALLBACK_HTTP_FILE_COMPLETION,
-					wsi->user_space, NULL, 0) < 0) {
+							wsi, LWS_CALLBACK_HTTP_FILE_COMPLETION,
+							wsi->user_space, NULL,
+							0) < 0) {
 					/*
 					 * For http/1.x, the choices from
 					 * transaction_completed are either
@@ -2611,7 +2632,7 @@ all_sent:
 
 			return 1;  /* >0 indicates completed */
 		}
-	} while (1); //(!lws_send_pipe_choked(wsi));
+	} while (0); // while (!lws_send_pipe_choked(wsi))
 
 	lws_callback_on_writable(wsi);
 
@@ -2692,7 +2713,8 @@ skip:
 				n = (int)strlen(pc);
 				s->swallow[s->pos] = '\0';
 				if (n != s->pos) {
-					memmove(s->start + n, s->start + s->pos,
+					memmove(s->start + n,
+						s->start + s->pos,
 						old_len - (sp - args->p));
 					old_len += (n - s->pos) + 1;
 				}
diff --git a/thirdparty/libwebsockets/lib/roles/listen/ops-listen.c b/thirdparty/libwebsockets/roles/listen/ops-listen.c
index 977c4b0377..dbeb9753a2 100644
--- a/thirdparty/libwebsockets/lib/roles/listen/ops-listen.c
+++ b/thirdparty/libwebsockets/roles/listen/ops-listen.c
@@ -32,11 +32,6 @@ rops_handle_POLLIN_listen(struct lws_context_per_thread *pt, struct lws *wsi,
 	struct sockaddr_storage cli_addr;
 	socklen_t clilen;
 
-	/* if our vhost is going down, ignore it */
-
-	if (wsi->vhost->being_destroyed)
-		return LWS_HPI_RET_HANDLED;
-
 	/* pollin means a client has connected to us then
 	 *
 	 * pollout is a hack on esp32 for background accepts signalling
@@ -79,8 +74,8 @@ rops_handle_POLLIN_listen(struct lws_context_per_thread *pt, struct lws *wsi,
 		 * block the connect queue for other legit peers.
 		 */
 
-		accept_fd = accept((int)pollfd->fd,
-				   (struct sockaddr *)&cli_addr, &clilen);
+		accept_fd  = accept((int)pollfd->fd,
+				    (struct sockaddr *)&cli_addr, &clilen);
 		lws_latency(context, wsi, "listener accept",
 			    (int)accept_fd, accept_fd != LWS_SOCK_INVALID);
 		if (accept_fd == LWS_SOCK_INVALID) {
@@ -88,11 +83,12 @@ rops_handle_POLLIN_listen(struct lws_context_per_thread *pt, struct lws *wsi,
 			    LWS_ERRNO == LWS_EWOULDBLOCK) {
 				break;
 			}
-			lwsl_err("accept: %s\n", strerror(LWS_ERRNO));
-			return LWS_HPI_RET_HANDLED;
+			lwsl_err("ERROR on accept: %s\n",
+				 strerror(LWS_ERRNO));
+			break;
 		}
 
-		lws_plat_set_socket_options(wsi->vhost, accept_fd, 0);
+		lws_plat_set_socket_options(wsi->vhost, accept_fd);
 
 #if defined(LWS_WITH_IPV6)
 		lwsl_debug("accepted new conn port %u on fd=%d\n",
@@ -129,12 +125,9 @@ rops_handle_POLLIN_listen(struct lws_context_per_thread *pt, struct lws *wsi,
 		fd.sockfd = accept_fd;
 		cwsi = lws_adopt_descriptor_vhost(wsi->vhost, opts, fd,
 						  NULL, NULL);
-		if (!cwsi) {
-			lwsl_err("%s: lws_adopt_descriptor_vhost failed\n",
-					__func__);
+		if (!cwsi)
 			/* already closed cleanly as necessary */
 			return LWS_HPI_RET_WSI_ALREADY_DIED;
-		}
 
 		if (lws_server_socket_service_ssl(cwsi, accept_fd)) {
 			lws_close_free_wsi(cwsi, LWS_CLOSE_STATUS_NOSTATUS,
@@ -178,11 +171,7 @@ struct lws_role_ops role_ops_listen = {
 	/* close_role */		NULL,
 	/* close_kill_connection */	NULL,
 	/* destroy_role */		NULL,
-	/* adoption_bind */		NULL,
-	/* client_bind */		NULL,
 	/* writeable cb clnt, srv */	{ 0, 0 },
 	/* close cb clnt, srv */	{ 0, 0 },
-	/* protocol_bind_cb c,s */	{ 0, 0 },
-	/* protocol_unbind_cb c,s */	{ 0, 0 },
 	/* file_handle */		0,
 };
diff --git a/thirdparty/libwebsockets/lib/roles/pipe/ops-pipe.c b/thirdparty/libwebsockets/roles/pipe/ops-pipe.c
index 659c9bd935..b9348d58d7 100644
--- a/thirdparty/libwebsockets/lib/roles/pipe/ops-pipe.c
+++ b/thirdparty/libwebsockets/roles/pipe/ops-pipe.c
@@ -39,18 +39,6 @@ rops_handle_POLLIN_pipe(struct lws_context_per_thread *pt, struct lws *wsi,
 	if (n < 0)
 		return LWS_HPI_RET_PLEASE_CLOSE_ME;
 #endif
-
-#if defined(LWS_WITH_THREADPOOL)
-	/*
-	 * threadpools that need to call for on_writable callbacks do it by
-	 * marking the task as needing one for its wsi, then cancelling service.
-	 *
-	 * Each tsi will call this to perform the actual callback_on_writable
-	 * from the correct service thread context
-	 */
-	lws_threadpool_tsi_context(pt->context, pt->tid);
-#endif
-
 	/*
 	 * the poll() wait, or the event loop for libuv etc is a
 	 * process-wide resource that we interrupted.  So let every
@@ -87,11 +75,7 @@ struct lws_role_ops role_ops_pipe = {
 	/* close_role */		NULL,
 	/* close_kill_connection */	NULL,
 	/* destroy_role */		NULL,
-	/* adoption_bind */		NULL,
-	/* client_bind */		NULL,
 	/* writeable cb clnt, srv */	{ 0, 0 },
 	/* close cb clnt, srv */	{ 0, 0 },
-	/* protocol_bind_cb c,s */	{ 0, 0 },
-	/* protocol_unbind_cb c,s */	{ 0, 0 },
 	/* file_handle */		1,
 };
diff --git a/thirdparty/libwebsockets/lib/roles/private.h b/thirdparty/libwebsockets/roles/private.h
index 5f93b86e8f..ae4278b5d3 100644
--- a/thirdparty/libwebsockets/lib/roles/private.h
+++ b/thirdparty/libwebsockets/roles/private.h
@@ -148,11 +148,9 @@ enum lwsi_state {
 };
 
 #define lwsi_state(wsi) ((enum lwsi_state)(wsi->wsistate & LRS_MASK))
-#define lwsi_state_PRE_CLOSE(wsi) \
-		((enum lwsi_state)(wsi->wsistate_pre_close & LRS_MASK))
+#define lwsi_state_PRE_CLOSE(wsi) ((enum lwsi_state)(wsi->wsistate_pre_close & LRS_MASK))
 #define lwsi_state_est(wsi) (!(wsi->wsistate & LWSIFS_NOT_EST))
-#define lwsi_state_est_PRE_CLOSE(wsi) \
-		(!(wsi->wsistate_pre_close & LWSIFS_NOT_EST))
+#define lwsi_state_est_PRE_CLOSE(wsi) (!(wsi->wsistate_pre_close & LWSIFS_NOT_EST))
 #define lwsi_state_can_handle_POLLOUT(wsi) (wsi->wsistate & LWSIFS_POCB)
 #if !defined (_DEBUG)
 #define lwsi_set_state(wsi, lrs) wsi->wsistate = \
@@ -161,8 +159,6 @@ enum lwsi_state {
 void lwsi_set_state(struct lws *wsi, lws_wsi_state_t lrs);
 #endif
 
-#define _LWS_ADOPT_FINISH (1 << 24)
-
 /*
  * internal role-specific ops
  */
@@ -221,16 +217,6 @@ struct lws_role_ops {
 	/* role-specific destructor */
 	int (*destroy_role)(struct lws *wsi);
 
-	/* role-specific socket-adopt */
-	int (*adoption_bind)(struct lws *wsi, int type, const char *prot);
-	/* role-specific client-bind:
-	 * ret 1 = bound, 0 = not bound, -1 = fail out
-	 * i may be NULL, indicating client_bind is being called after
-	 * a successful bind earlier, to finalize the binding.  In that
-	 * case ret 0 = OK, 1 = fail, wsi needs freeing, -1 = fail, wsi freed */
-	int (*client_bind)(struct lws *wsi,
-			   const struct lws_client_connect_info *i);
-
 	/*
 	 * the callback reasons for WRITEABLE for client, server
 	 * (just client applies if no concept of client or server)
@@ -241,16 +227,6 @@ struct lws_role_ops {
 	 * (just client applies if no concept of client or server)
 	 */
 	uint16_t close_cb[2];
-	/*
-	 * the callback reasons for protocol bind for client, server
-	 * (just client applies if no concept of client or server)
-	 */
-	uint16_t protocol_bind_cb[2];
-	/*
-	 * the callback reasons for protocol unbind for client, server
-	 * (just client applies if no concept of client or server)
-	 */
-	uint16_t protocol_unbind_cb[2];
 
 	unsigned int file_handle:1; /* role operates on files not sockets */
 };
@@ -291,12 +267,6 @@ extern struct lws_role_ops role_ops_raw_skt, role_ops_raw_file, role_ops_listen,
  #define lwsi_role_cgi(wsi) (0)
 #endif
 
-#if defined(LWS_ROLE_DBUS)
- #include "roles/dbus/private.h"
-#else
- #define lwsi_role_dbus(wsi) (0)
-#endif
-
 enum {
 	LWS_HP_RET_BAIL_OK,
 	LWS_HP_RET_BAIL_DIE,
@@ -310,6 +280,3 @@ enum {
 	LWS_UPG_RET_CONTINUE,
 	LWS_UPG_RET_BAIL
 };
-
-int
-lws_role_call_adoption_bind(struct lws *wsi, int type, const char *prot);
diff --git a/thirdparty/libwebsockets/lib/roles/raw-skt/ops-raw-skt.c b/thirdparty/libwebsockets/roles/raw/ops-raw.c
index 8b94de4bed..68b52bded6 100644
--- a/thirdparty/libwebsockets/lib/roles/raw-skt/ops-raw-skt.c
+++ b/thirdparty/libwebsockets/roles/raw/ops-raw.c
@@ -30,12 +30,12 @@ rops_handle_POLLIN_raw_skt(struct lws_context_per_thread *pt, struct lws *wsi,
 
 	/* pending truncated sends have uber priority */
 
-	if (lws_has_buffered_out(wsi)) {
+	if (wsi->trunc_len) {
 		if (!(pollfd->revents & LWS_POLLOUT))
 			return LWS_HPI_RET_HANDLED;
 
-		/* drain the output buflist */
-		if (lws_issue_raw(wsi, NULL, 0) < 0)
+		if (lws_issue_raw(wsi, wsi->trunc_alloc + wsi->trunc_offset,
+				  wsi->trunc_len) < 0)
 			goto fail;
 		/*
 		 * we can't afford to allow input processing to send
@@ -109,7 +109,7 @@ try_pollout:
 				LWSSTATS_C_WRITEABLE_CB, 1);
 #if defined(LWS_WITH_STATS)
 	if (wsi->active_writable_req_us) {
-		uint64_t ul = lws_time_in_microseconds() -
+		uint64_t ul = time_in_microseconds() -
 				wsi->active_writable_req_us;
 
 		lws_stats_atomic_bump(wsi->context, pt,
@@ -135,62 +135,38 @@ fail:
 	return LWS_HPI_RET_WSI_ALREADY_DIED;
 }
 
-#if !defined(LWS_NO_SERVER)
-static int
-rops_adoption_bind_raw_skt(struct lws *wsi, int type, const char *vh_prot_name)
-{
-	/* no http but socket... must be raw skt */
-	if ((type & LWS_ADOPT_HTTP) || !(type & LWS_ADOPT_SOCKET) ||
-	    (type & _LWS_ADOPT_FINISH))
-		return 0; /* no match */
-
-#if !defined(LWS_WITH_ESP32)
-	if (type & LWS_ADOPT_FLAG_UDP)
-		/*
-		 * these can be >128 bytes, so just alloc for UDP
-		 */
-		wsi->udp = lws_malloc(sizeof(*wsi->udp), "udp struct");
-#endif
 
-	lws_role_transition(wsi, 0, (type & LWS_ADOPT_ALLOW_SSL) ? LRS_SSL_INIT :
-				LRS_ESTABLISHED, &role_ops_raw_skt);
-
-	if (vh_prot_name)
-		lws_bind_protocol(wsi, wsi->protocol, __func__);
-	else
-		/* this is the only time he will transition */
-		lws_bind_protocol(wsi,
-			&wsi->vhost->protocols[wsi->vhost->raw_protocol_index],
-			__func__);
-
-	return 1; /* bound */
-}
-#endif
-
-#if !defined(LWS_NO_CLIENT)
 static int
-rops_client_bind_raw_skt(struct lws *wsi,
-			 const struct lws_client_connect_info *i)
+rops_handle_POLLIN_raw_file(struct lws_context_per_thread *pt, struct lws *wsi,
+			    struct lws_pollfd *pollfd)
 {
-	if (!i) {
-
-		/* finalize */
+	int n;
 
-		if (!wsi->user_space && wsi->stash->method)
-			if (lws_ensure_user_space(wsi))
-				return 1;
-
-		return 0;
+	if (pollfd->revents & LWS_POLLOUT) {
+		n = lws_callback_as_writeable(wsi);
+		if (lws_change_pollfd(wsi, LWS_POLLOUT, 0)) {
+			lwsl_info("failed at set pollfd\n");
+			return LWS_HPI_RET_WSI_ALREADY_DIED;
+		}
+		if (n)
+			return LWS_HPI_RET_PLEASE_CLOSE_ME;
 	}
 
-	/* we are a fallback if nothing else matched */
+	if (pollfd->revents & LWS_POLLIN) {
+		if (user_callback_handle_rxflow(wsi->protocol->callback,
+						wsi, LWS_CALLBACK_RAW_RX_FILE,
+						wsi->user_space, NULL, 0)) {
+			lwsl_debug("raw rx callback closed it\n");
+			return LWS_HPI_RET_PLEASE_CLOSE_ME;
+		}
+	}
 
-	lws_role_transition(wsi, LWSIFR_CLIENT, LRS_UNCONNECTED,
-			    &role_ops_raw_skt);
+	if (pollfd->revents & LWS_POLLHUP)
+		return LWS_HPI_RET_PLEASE_CLOSE_ME;
 
-	return 1; /* matched */
+	return LWS_HPI_RET_HANDLED;
 }
-#endif
+
 
 struct lws_role_ops role_ops_raw_skt = {
 	/* role name */			"raw-skt",
@@ -213,21 +189,35 @@ struct lws_role_ops role_ops_raw_skt = {
 	/* close_role */		NULL,
 	/* close_kill_connection */	NULL,
 	/* destroy_role */		NULL,
-#if !defined(LWS_NO_SERVER)
-	/* adoption_bind */		rops_adoption_bind_raw_skt,
-#else
-					NULL,
-#endif
-#if !defined(LWS_NO_CLIENT)
-	/* client_bind */		rops_client_bind_raw_skt,
-#else
-					NULL,
-#endif
 	/* writeable cb clnt, srv */	{ LWS_CALLBACK_RAW_WRITEABLE, 0 },
 	/* close cb clnt, srv */	{ LWS_CALLBACK_RAW_CLOSE, 0 },
-	/* protocol_bind cb c, srv */	{ LWS_CALLBACK_RAW_SKT_BIND_PROTOCOL,
-					  LWS_CALLBACK_RAW_SKT_BIND_PROTOCOL },
-	/* protocol_unbind cb c, srv */	{ LWS_CALLBACK_RAW_SKT_DROP_PROTOCOL,
-					  LWS_CALLBACK_RAW_SKT_DROP_PROTOCOL },
 	/* file_handle */		0,
 };
+
+
+
+struct lws_role_ops role_ops_raw_file = {
+	/* role name */			"raw-file",
+	/* alpn id */			NULL,
+	/* check_upgrades */		NULL,
+	/* init_context */		NULL,
+	/* init_vhost */		NULL,
+	/* destroy_vhost */		NULL,
+	/* periodic_checks */		NULL,
+	/* service_flag_pending */	NULL,
+	/* handle_POLLIN */		rops_handle_POLLIN_raw_file,
+	/* handle_POLLOUT */		NULL,
+	/* perform_user_POLLOUT */	NULL,
+	/* callback_on_writable */	NULL,
+	/* tx_credit */			NULL,
+	/* write_role_protocol */	NULL,
+	/* encapsulation_parent */	NULL,
+	/* alpn_negotiated */		NULL,
+	/* close_via_role_protocol */	NULL,
+	/* close_role */		NULL,
+	/* close_kill_connection */	NULL,
+	/* destroy_role */		NULL,
+	/* writeable cb clnt, srv */	{ LWS_CALLBACK_RAW_WRITEABLE_FILE, 0 },
+	/* close cb clnt, srv */	{ LWS_CALLBACK_RAW_CLOSE_FILE, 0 },
+	/* file_handle */		1,
+};
diff --git a/thirdparty/libwebsockets/lib/roles/ws/client-parser-ws.c b/thirdparty/libwebsockets/roles/ws/client-parser-ws.c
index f5aaa6dbb5..7287fb1590 100644
--- a/thirdparty/libwebsockets/lib/roles/ws/client-parser-ws.c
+++ b/thirdparty/libwebsockets/roles/ws/client-parser-ws.c
@@ -1,7 +1,7 @@
 /*
  * libwebsockets - small server side websockets and web server implementation
  *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -399,11 +399,9 @@ spill:
 
 			memcpy(wsi->ws->ping_payload_buf + LWS_PRE, pp,
 			       wsi->ws->rx_ubuf_head);
-			wsi->ws->close_in_ping_buffer_len =
-					wsi->ws->rx_ubuf_head;
+			wsi->ws->close_in_ping_buffer_len = wsi->ws->rx_ubuf_head;
 
-			lwsl_info("%s: scheduling return close as ack\n",
-				  __func__);
+			lwsl_info("%s: scheduling return close as ack\n", __func__);
 			__lws_change_pollfd(wsi, LWS_POLLIN, 0);
 			lws_set_timeout(wsi, PENDING_TIMEOUT_CLOSE_SEND, 3);
 			wsi->waiting_to_send_close_frame = 1;
@@ -439,7 +437,7 @@ spill:
 			/* stash the pong payload */
 			memcpy(wsi->ws->ping_payload_buf + LWS_PRE,
 			       &wsi->ws->rx_ubuf[LWS_PRE],
-			       wsi->ws->rx_ubuf_head);
+				wsi->ws->rx_ubuf_head);
 
 			wsi->ws->ping_payload_len = wsi->ws->rx_ubuf_head;
 			wsi->ws->ping_pending_flag = 1;
diff --git a/thirdparty/libwebsockets/lib/roles/ws/client-ws.c b/thirdparty/libwebsockets/roles/ws/client-ws.c
index d88833f381..fd6cf42551 100644
--- a/thirdparty/libwebsockets/lib/roles/ws/client-ws.c
+++ b/thirdparty/libwebsockets/roles/ws/client-ws.c
@@ -40,8 +40,7 @@ strtolower(char *s)
 }
 
 int
-lws_create_client_ws_object(const struct lws_client_connect_info *i,
-			    struct lws *wsi)
+lws_create_client_ws_object(struct lws_client_connect_info *i, struct lws *wsi)
 {
 	int v = SPEC_LATEST_SUPPORTED;
 
@@ -114,7 +113,7 @@ lws_ws_handshake_client(struct lws *wsi, unsigned char **buf, size_t len)
 #endif
 
 char *
-lws_generate_client_ws_handshake(struct lws *wsi, char *p, const char *conn1)
+lws_generate_client_ws_handshake(struct lws *wsi, char *p)
 {
 	char buf[128], hash[20], key_b64[40];
 	int n;
@@ -136,8 +135,8 @@ lws_generate_client_ws_handshake(struct lws *wsi, char *p, const char *conn1)
 	lws_b64_encode_string(hash, 16, key_b64, sizeof(key_b64));
 
 	p += sprintf(p, "Upgrade: websocket\x0d\x0a"
-			"Connection: %sUpgrade\x0d\x0a"
-			"Sec-WebSocket-Key: ", conn1);
+			"Connection: Upgrade\x0d\x0a"
+			"Sec-WebSocket-Key: ");
 	strcpy(p, key_b64);
 	p += strlen(key_b64);
 	p += sprintf(p, "\x0d\x0a");
@@ -204,12 +203,10 @@ lws_generate_client_ws_handshake(struct lws *wsi, char *p, const char *conn1)
 int
 lws_client_ws_upgrade(struct lws *wsi, const char **cce)
 {
-	struct lws_context *context = wsi->context;
-	struct lws_tokenize ts;
 	int n, len, okay = 0;
-	lws_tokenize_elem e;
-	char *p, buf[64];
+	struct lws_context *context = wsi->context;
 	const char *pc;
+	char *p;
 #if !defined(LWS_WITHOUT_EXTENSIONS)
 	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
 	char *sb = (char *)&pt->serv_buf[0];
@@ -217,8 +214,8 @@ lws_client_ws_upgrade(struct lws *wsi, const char **cce)
 	const struct lws_extension *ext;
 	char ext_name[128];
 	const char *c, *a;
-	int more = 1;
 	char ignore;
+	int more = 1;
 #endif
 
 	if (wsi->client_h2_substream) {/* !!! client ws-over-h2 not there yet */
@@ -264,31 +261,18 @@ lws_client_ws_upgrade(struct lws *wsi, const char **cce)
 		goto bail3;
 	}
 
-	/* connection: must have "upgrade" */
-
-	lws_tokenize_init(&ts, buf, LWS_TOKENIZE_F_COMMA_SEP_LIST |
-				    LWS_TOKENIZE_F_MINUS_NONTERM);
-	ts.len = lws_hdr_copy(wsi, buf, sizeof(buf) - 1, WSI_TOKEN_CONNECTION);
-	if (ts.len <= 0) /* won't fit, or absent */
-		goto bad_conn_format;
-
-	do {
-		e = lws_tokenize(&ts);
-		switch (e) {
-		case LWS_TOKZE_TOKEN:
-			if (!strcasecmp(ts.token, "upgrade"))
-				e = LWS_TOKZE_ENDED;
-			break;
-
-		case LWS_TOKZE_DELIMITER:
-			break;
-
-		default: /* includes ENDED */
-bad_conn_format:
-			*cce = "HS: UPGRADE malformed";
-			goto bail3;
-		}
-	} while (e > 0);
+	p = lws_hdr_simple_ptr(wsi, WSI_TOKEN_CONNECTION);
+	if (!p) {
+		lwsl_info("no Connection hdr\n");
+		*cce = "HS: CONNECTION missing";
+		goto bail3;
+	}
+	strtolower(p);
+	if (strcmp(p, "upgrade")) {
+		lwsl_warn("lws_client_int_s_hs: bad header %s\n", p);
+		*cce = "HS: UPGRADE malformed";
+		goto bail3;
+	}
 
 	pc = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS);
 	if (!pc) {
@@ -324,7 +308,7 @@ bad_conn_format:
 		}
 		while (*pc && *pc++ != ',')
 			;
-		while (*pc == ' ')
+		while (*pc && *pc == ' ')
 			pc++;
 	}
 
@@ -392,7 +376,22 @@ check_extensions:
 	 * X <-> pAn <-> pB
 	 */
 
-	lws_same_vh_protocol_insert(wsi, n);
+	lws_vhost_lock(wsi->vhost);
+
+	wsi->same_vh_protocol_prev = /* guy who points to us */
+		&wsi->vhost->same_vh_protocol_list[n];
+	wsi->same_vh_protocol_next = /* old first guy is our next */
+			wsi->vhost->same_vh_protocol_list[n];
+	/* we become the new first guy */
+	wsi->vhost->same_vh_protocol_list[n] = wsi;
+
+	if (wsi->same_vh_protocol_next)
+		/* old first guy points back to us now */
+		wsi->same_vh_protocol_next->same_vh_protocol_prev =
+				&wsi->same_vh_protocol_next;
+	wsi->on_same_vh_list = 1;
+
+	lws_vhost_unlock(wsi->vhost);
 
 #if !defined(LWS_WITHOUT_EXTENSIONS)
 	/* instantiate the accepted extensions */
@@ -469,8 +468,7 @@ check_extensions:
 
 			if (ext->callback(lws_get_context(wsi), ext, wsi,
 				   LWS_EXT_CB_CLIENT_CONSTRUCT,
-				   (void *)&wsi->ws->act_ext_user[
-				                        wsi->ws->count_act_ext],
+				   (void *)&wsi->ws->act_ext_user[wsi->ws->count_act_ext],
 				   (void *)&opts, 0)) {
 				lwsl_info(" ext %s failed construction\n",
 					  ext_name);
@@ -492,10 +490,8 @@ check_extensions:
 			}
 
 			if (ext_name[0] &&
-			    lws_ext_parse_options(ext, wsi,
-					          wsi->ws->act_ext_user[
-						        wsi->ws->count_act_ext],
-					          opts, ext_name,
+			    lws_ext_parse_options(ext, wsi, wsi->ws->act_ext_user[
+						  wsi->ws->count_act_ext], opts, ext_name,
 						  (int)strlen(ext_name))) {
 				lwsl_err("%s: unable to parse user defaults '%s'",
 					 __func__, ext_name);
@@ -507,8 +503,7 @@ check_extensions:
 			 * give the extension the server options
 			 */
 			if (a && lws_ext_parse_options(ext, wsi,
-					wsi->ws->act_ext_user[
-					                wsi->ws->count_act_ext],
+					wsi->ws->act_ext_user[wsi->ws->count_act_ext],
 					opts, a, lws_ptr_diff(c, a))) {
 				lwsl_err("%s: unable to parse remote def '%s'",
 					 __func__, a);
diff --git a/thirdparty/libwebsockets/lib/roles/ws/ops-ws.c b/thirdparty/libwebsockets/roles/ws/ops-ws.c
index 1cbc6ac6a6..665b2c9b74 100644
--- a/thirdparty/libwebsockets/lib/roles/ws/ops-ws.c
+++ b/thirdparty/libwebsockets/roles/ws/ops-ws.c
@@ -155,9 +155,7 @@ handle_first:
 			if (wsi->ws->opcode == LWSWSOPC_BINARY_FRAME)
 				wsi->ws->check_utf8 = 0;
 			if (wsi->ws->continuation_possible) {
-				lws_close_reason(wsi,
-					LWS_CLOSE_STATUS_PROTOCOL_ERR,
-					(uint8_t *)"bad cont", 8);
+				lws_close_reason(wsi, LWS_CLOSE_STATUS_PROTOCOL_ERR, (uint8_t *)"bad cont", 8);
 				return -1;
 			}
 			wsi->ws->rsv_first_msg = (c & 0x70);
@@ -168,9 +166,7 @@ handle_first:
 			break;
 		case LWSWSOPC_CONTINUATION:
 			if (!wsi->ws->continuation_possible) {
-				lws_close_reason(wsi,
-					LWS_CLOSE_STATUS_PROTOCOL_ERR,
-					(uint8_t *)"bad cont", 8);
+				lws_close_reason(wsi, LWS_CLOSE_STATUS_PROTOCOL_ERR, (uint8_t *)"bad cont", 8);
 				return -1;
 			}
 			break;
@@ -188,8 +184,7 @@ handle_first:
 		case 0xd:
 		case 0xe:
 		case 0xf:
-			lws_close_reason(wsi, LWS_CLOSE_STATUS_PROTOCOL_ERR,
-					(uint8_t *)"bad opc", 7);
+			lws_close_reason(wsi, LWS_CLOSE_STATUS_PROTOCOL_ERR, (uint8_t *)"bad opc", 7);
 			lwsl_info("illegal opcode\n");
 			return -1;
 		}
@@ -198,8 +193,7 @@ handle_first:
 		    (wsi->ws->opcode == LWSWSOPC_TEXT_FRAME ||
 		     wsi->ws->opcode == LWSWSOPC_BINARY_FRAME)) {
 			lwsl_info("hey you owed us a FIN\n");
-			lws_close_reason(wsi, LWS_CLOSE_STATUS_PROTOCOL_ERR,
-					(uint8_t *)"bad fin", 7);
+			lws_close_reason(wsi, LWS_CLOSE_STATUS_PROTOCOL_ERR, (uint8_t *)"bad fin", 7);
 			return -1;
 		}
 		if ((!(wsi->ws->opcode & 8)) && wsi->ws->final) {
@@ -379,19 +373,17 @@ handle_first:
 		}
 		if (!(already_processed & ALREADY_PROCESSED_IGNORE_CHAR)) {
 			if (wsi->ws->all_zero_nonce)
-				wsi->ws->rx_ubuf[LWS_PRE +
-				                 (wsi->ws->rx_ubuf_head++)] = c;
+				wsi->ws->rx_ubuf[LWS_PRE + (wsi->ws->rx_ubuf_head++)] =
+				   c;
 			else
-				wsi->ws->rx_ubuf[LWS_PRE +
-				                 (wsi->ws->rx_ubuf_head++)] =
+				wsi->ws->rx_ubuf[LWS_PRE + (wsi->ws->rx_ubuf_head++)] =
 				   c ^ wsi->ws->mask[(wsi->ws->mask_idx++) & 3];
 
 			--wsi->ws->rx_packet_length;
 		}
 
 		if (!wsi->ws->rx_packet_length) {
-			lwsl_debug("%s: ws fragment length exhausted\n",
-				   __func__);
+			lwsl_debug("%s: ws fragment length exhausted\n", __func__);
 			/* spill because we have the whole frame */
 			wsi->lws_rx_parse_state = LWS_RXPS_NEW;
 			goto spill;
@@ -459,8 +451,7 @@ spill:
 				 * have to just close our end.
 				 */
 				wsi->socket_is_permanently_unusable = 1;
-				lwsl_parser("Closing on peer close "
-					    "due to pending tx\n");
+				lwsl_parser("Closing on peer close due to Pending tx\n");
 				return -1;
 			}
 
@@ -579,8 +570,7 @@ drain_extension:
 		//if (lin)
 		//	lwsl_hexdump_notice(ebuf.token, ebuf.len);
 		n = lws_ext_cb_active(wsi, LWS_EXT_CB_PAYLOAD_RX, &ebuf, 0);
-		lwsl_debug("%s: ext says %d / ebuf.len %d\n", __func__,
-			   n, ebuf.len);
+		lwsl_debug("%s: ext says %d / ebuf.len %d\n", __func__,  n, ebuf.len);
 		if (wsi->ws->rx_draining_ext)
 			already_processed &= ~ALREADY_PROCESSED_NO_CB;
 #endif
@@ -791,7 +781,8 @@ lws_server_init_wsi_for_ws(struct lws *wsi)
 	lwsl_debug("Allocating RX buffer %d\n", n);
 
 #if !defined(LWS_WITH_ESP32)
-	if (!wsi->h2_stream_carries_ws)
+	if (!wsi->parent_carries_io &&
+	    !wsi->h2_stream_carries_ws)
 		if (setsockopt(wsi->desc.sockfd, SOL_SOCKET, SO_SNDBUF,
 		       (const char *)&n, sizeof n)) {
 			lwsl_warn("Failed to set SNDBUF to %d", n);
@@ -823,9 +814,9 @@ LWS_VISIBLE int
 lws_is_final_fragment(struct lws *wsi)
 {
 #if !defined(LWS_WITHOUT_EXTENSIONS)
-	lwsl_debug("%s: final %d, rx pk length %ld, draining %ld\n", __func__,
-		   wsi->ws->final, (long)wsi->ws->rx_packet_length,
-		   (long)wsi->ws->rx_draining_ext);
+       lwsl_debug("%s: final %d, rx pk length %ld, draining %ld\n", __func__,
+			wsi->ws->final, (long)wsi->ws->rx_packet_length,
+			(long)wsi->ws->rx_draining_ext);
 	return wsi->ws->final && !wsi->ws->rx_packet_length &&
 	       !wsi->ws->rx_draining_ext;
 #else
@@ -892,8 +883,8 @@ static int
 rops_handle_POLLIN_ws(struct lws_context_per_thread *pt, struct lws *wsi,
 		       struct lws_pollfd *pollfd)
 {
-	unsigned int pending = 0;
 	struct lws_tokens ebuf;
+	unsigned int pending = 0;
 	char buffered = 0;
 	int n = 0, m;
 #if defined(LWS_WITH_HTTP2)
@@ -937,9 +928,7 @@ rops_handle_POLLIN_ws(struct lws_context_per_thread *pt, struct lws *wsi,
 		return LWS_HPI_RET_HANDLED;
 	}
 
-	//lwsl_notice("%s:  wsi->ws->tx_draining_ext %d revents 0x%x 0x%x %d\n",
-	//__func__,  wsi->ws->tx_draining_ext, pollfd->revents, wsi->wsistate,
-	//lwsi_state_can_handle_POLLOUT(wsi));
+	//lwsl_notice("%s:  wsi->ws->tx_draining_ext %d revents 0x%x 0x%x %d\n", __func__,  wsi->ws->tx_draining_ext, pollfd->revents, wsi->wsistate, lwsi_state_can_handle_POLLOUT(wsi));
 
 	/* 1: something requested a callback when it was OK to write */
 
@@ -988,7 +977,7 @@ rops_handle_POLLIN_ws(struct lws_context_per_thread *pt, struct lws *wsi,
 #if defined(LWS_WITH_HTTP2)
 	if (wsi->http2_substream || wsi->upgraded_to_http2) {
 		wsi1 = lws_get_network_wsi(wsi);
-		if (wsi1 && lws_has_buffered_out(wsi1))
+		if (wsi1 && wsi1->trunc_len)
 			/* We cannot deal with any kind of new RX
 			 * because we are dealing with a partial send
 			 * (new RX may trigger new http_action() that
@@ -1211,9 +1200,8 @@ int rops_handle_POLLOUT_ws(struct lws *wsi)
 		if (n >= 0) {
 			if (wsi->close_needs_ack) {
 				lwsi_set_state(wsi, LRS_AWAITING_CLOSE_ACK);
-				lws_set_timeout(wsi, PENDING_TIMEOUT_CLOSE_ACK,
-						5);
-				lwsl_debug("sent close, await ack\n");
+				lws_set_timeout(wsi, PENDING_TIMEOUT_CLOSE_ACK, 5);
+				lwsl_debug("sent close indication, awaiting ack\n");
 
 				return LWS_HP_RET_BAIL_OK;
 			}
@@ -1238,8 +1226,7 @@ int rops_handle_POLLOUT_ws(struct lws *wsi)
 				wsi->ws->ping_pending_flag = 0;
 				return LWS_HP_RET_BAIL_OK;
 			}
-			lwsl_info("issuing pong %d on wsi %p\n",
-				  wsi->ws->ping_payload_len, wsi);
+			lwsl_info("issuing pong %d on wsi %p\n", wsi->ws->ping_payload_len, wsi);
 		}
 
 		n = lws_write(wsi, &wsi->ws->ping_payload_buf[LWS_PRE],
@@ -1415,12 +1402,9 @@ rops_periodic_checks_ws(struct lws_context *context, int tsi, time_t now)
 		lws_vhost_lock(vh);
 
 		for (n = 0; n < vh->count_protocols; n++) {
+			struct lws *wsi = vh->same_vh_protocol_list[n];
 
-			lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
-					  vh->same_vh_protocol_heads[n].next) {
-				struct lws *wsi = lws_container_of(d,
-						struct lws, same_vh_protocol);
-
+			while (wsi) {
 				if (lwsi_role_ws(wsi) &&
 				    !wsi->socket_is_permanently_unusable &&
 				    !wsi->ws->send_check_ping &&
@@ -1437,8 +1421,8 @@ rops_periodic_checks_ws(struct lws_context *context, int tsi, time_t now)
 					lws_callback_on_writable(wsi);
 					wsi->ws->time_next_ping_check = now;
 				}
-
-			} lws_end_foreach_dll_safe(d, d1);
+				wsi = wsi->same_vh_protocol_next;
+			}
 		}
 
 		lws_vhost_unlock(vh);
@@ -1512,11 +1496,7 @@ rops_close_via_role_protocol_ws(struct lws *wsi, enum lws_close_status reason)
 static int
 rops_close_role_ws(struct lws_context_per_thread *pt, struct lws *wsi)
 {
-	if (!wsi->ws)
-		return 0;
-
 #if !defined(LWS_WITHOUT_EXTENSIONS)
-
 	if (wsi->ws->rx_draining_ext) {
 		struct lws **w = &pt->ws.rx_draining_ext_list;
 
@@ -1549,6 +1529,10 @@ rops_close_role_ws(struct lws_context_per_thread *pt, struct lws *wsi)
 #endif
 	lws_free_set_NULL(wsi->ws->rx_ubuf);
 
+	if (wsi->trunc_alloc)
+		/* not going to be completed... nuke it */
+		lws_free_set_NULL(wsi->trunc_alloc);
+
 	wsi->ws->ping_payload_len = 0;
 	wsi->ws->ping_pending_flag = 0;
 
@@ -1606,9 +1590,8 @@ rops_write_role_protocol_ws(struct lws *wsi, unsigned char *buf, size_t len,
 		if (!(wpt & LWS_WRITE_NO_FIN) && len)
 			*wp &= ~LWS_WRITE_NO_FIN;
 
-		lwsl_ext("FORCED draining wp to 0x%02X "
-			 "(stashed 0x%02X, incoming 0x%02X)\n", *wp,
-			 wsi->ws->tx_draining_stashed_wp, wpt);
+		lwsl_ext("FORCED draining wp to 0x%02X (stashed 0x%02X, incoming 0x%02X)\n", *wp,
+				wsi->ws->tx_draining_stashed_wp, wpt);
 		// assert(0);
 	}
 #endif
@@ -1660,16 +1643,13 @@ rops_write_role_protocol_ws(struct lws *wsi, unsigned char *buf, size_t len,
 		n = lws_ext_cb_active(wsi, LWS_EXT_CB_PAYLOAD_TX, &ebuf, *wp);
 		if (n < 0)
 			return -1;
-		// lwsl_notice("ext processed %d plaintext into %d compressed"
-		//	       " (wp 0x%x)\n", m, (int)ebuf.len, *wp);
+		// lwsl_notice("ext processed %d plaintext into %d compressed (wp 0x%x)\n", m, (int)ebuf.len, *wp);
 
 		if (n && ebuf.len) {
-			lwsl_ext("write drain len %d (wp 0x%x) SETTING "
-				 "tx_draining_ext\n", (int)ebuf.len, *wp);
+			lwsl_ext("write drain len %d (wp 0x%x) SETTING tx_draining_ext\n", (int)ebuf.len, *wp);
 			/* extension requires further draining */
 			wsi->ws->tx_draining_ext = 1;
-			wsi->ws->tx_draining_ext_list =
-					pt->ws.tx_draining_ext_list;
+			wsi->ws->tx_draining_ext_list = pt->ws.tx_draining_ext_list;
 			pt->ws.tx_draining_ext_list = wsi;
 			/* we must come back to do more */
 			lws_callback_on_writable(wsi);
@@ -1706,8 +1686,7 @@ rops_write_role_protocol_ws(struct lws *wsi, unsigned char *buf, size_t len,
 		 */
 		if (len && !ebuf.len) {
 			if (!wsi->ws->stashed_write_pending)
-				wsi->ws->stashed_write_type =
-						(char)(*wp) & 0x3f;
+				wsi->ws->stashed_write_type = (char)(*wp) & 0x3f;
 			wsi->ws->stashed_write_pending = 1;
 			return (int)len;
 		}
@@ -1829,7 +1808,7 @@ do_more_inside_frame:
 
 		assert(encap != wsi);
 		return encap->role_ops->write_role_protocol(wsi, buf - pre,
-							    len + pre, wp);
+							len + pre, wp);
 	}
 
 	switch ((*wp) & 0x1f) {
@@ -2007,15 +1986,9 @@ struct lws_role_ops role_ops_ws = {
 	/* close_role */		rops_close_role_ws,
 	/* close_kill_connection */	rops_close_kill_connection_ws,
 	/* destroy_role */		rops_destroy_role_ws,
-	/* adoption_bind */		NULL,
-	/* client_bind */		NULL,
 	/* writeable cb clnt, srv */	{ LWS_CALLBACK_CLIENT_WRITEABLE,
 					  LWS_CALLBACK_SERVER_WRITEABLE },
 	/* close cb clnt, srv */	{ LWS_CALLBACK_CLIENT_CLOSED,
 					  LWS_CALLBACK_CLOSED },
-	/* protocol_bind cb c, srv */	{ LWS_CALLBACK_WS_CLIENT_BIND_PROTOCOL,
-					  LWS_CALLBACK_WS_SERVER_BIND_PROTOCOL },
-	/* protocol_unbind cb c, srv */	{ LWS_CALLBACK_WS_CLIENT_DROP_PROTOCOL,
-					  LWS_CALLBACK_WS_SERVER_DROP_PROTOCOL },
 	/* file handles */		0
 };
diff --git a/thirdparty/libwebsockets/lib/roles/ws/private.h b/thirdparty/libwebsockets/roles/ws/private.h
index 71ffcaea96..71ffcaea96 100644
--- a/thirdparty/libwebsockets/lib/roles/ws/private.h
+++ b/thirdparty/libwebsockets/roles/ws/private.h
diff --git a/thirdparty/libwebsockets/lib/roles/ws/server-ws.c b/thirdparty/libwebsockets/roles/ws/server-ws.c
index bdc45367d4..62bcd8524f 100644
--- a/thirdparty/libwebsockets/lib/roles/ws/server-ws.c
+++ b/thirdparty/libwebsockets/roles/ws/server-ws.c
@@ -104,7 +104,7 @@ lws_extension_server_handshake(struct lws *wsi, char **p, int budget)
 				continue;
 		}
 
-		while (args && *args == ' ')
+		while (args && *args && *args == ' ')
 			args++;
 
 		/* check a client's extension against our support */
@@ -124,7 +124,7 @@ lws_extension_server_handshake(struct lws *wsi, char **p, int budget)
 			 */
 			for (m = 0; m < wsi->ws->count_act_ext; m++)
 				if (wsi->ws->active_extensions[m] == ext) {
-					lwsl_info("ext mentioned twice\n");
+					lwsl_info("extension mentioned twice\n");
 					return 1; /* shenanigans */
 				}
 
@@ -209,17 +209,16 @@ lws_extension_server_handshake(struct lws *wsi, char **p, int budget)
 					oa.len = 0;
 					lwsl_info("setting '%s'\n", po->name);
 					if (!ext->callback(lws_get_context(wsi),
-							   ext, wsi,
-						LWS_EXT_CB_OPTION_SET,
-						wsi->ws->act_ext_user[
-							wsi->ws->count_act_ext],
+							  ext, wsi,
+							  LWS_EXT_CB_OPTION_SET,
+							  wsi->ws->act_ext_user[
+								 wsi->ws->count_act_ext],
 							  &oa, (end - *p))) {
 
-						*p += lws_snprintf(*p,
-								   (end - *p),
-							      "; %s", po->name);
+						*p += lws_snprintf(*p, (end - *p),
+							"; %s", po->name);
 						lwsl_debug("adding option %s\n",
-							   po->name);
+								po->name);
 					}
 					po++;
 				}
@@ -231,8 +230,7 @@ lws_extension_server_handshake(struct lws *wsi, char **p, int budget)
 			}
 
 			wsi->ws->count_act_ext++;
-			lwsl_parser("cnt_act_ext <- %d\n",
-				    wsi->ws->count_act_ext);
+			lwsl_parser("cnt_act_ext <- %d\n", wsi->ws->count_act_ext);
 
 			if (args && *args == ',')
 				more = 0;
@@ -248,149 +246,96 @@ lws_extension_server_handshake(struct lws *wsi, char **p, int budget)
 }
 #endif
 
+
+
 int
 lws_process_ws_upgrade(struct lws *wsi)
 {
 	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
-	const struct lws_protocols *pcol = NULL;
-	char buf[128], name[64];
-	struct lws_tokenize ts;
-	lws_tokenize_elem e;
+	char protocol_list[128], protocol_name[64], *p;
+	int protocol_len, hit, n = 0, non_space_char_found = 0;
 
 	if (!wsi->protocol)
 		lwsl_err("NULL protocol at lws_read\n");
 
 	/*
-	 * We are upgrading to ws, so http/1.1 + h2 and keepalive + pipelined
-	 * header considerations about keeping the ah around no longer apply.
-	 *
-	 * However it's common for the first ws protocol data to have been
-	 * coalesced with the browser upgrade request and to already be in the
-	 * ah rx buffer.
-	 */
-
-	lws_pt_lock(pt, __func__);
-
-	if (!wsi->h2_stream_carries_ws)
-		lws_role_transition(wsi, LWSIFR_SERVER, LRS_ESTABLISHED,
-				    &role_ops_ws);
-
-	lws_pt_unlock(pt);
-
-	/*
 	 * It's either websocket or h2->websocket
 	 *
-	 * If we are on h1, confirm we got the required "connection: upgrade"
-	 * header.  h2 / ws-over-h2 does not have this.
-	 */
-
-#if defined(LWS_WITH_HTTP2)
-	if (wsi->http2_substream)
-		goto check_protocol;
-#endif
-
-	lws_tokenize_init(&ts, buf, LWS_TOKENIZE_F_COMMA_SEP_LIST |
-				    LWS_TOKENIZE_F_MINUS_NONTERM);
-	ts.len = lws_hdr_copy(wsi, buf, sizeof(buf) - 1, WSI_TOKEN_CONNECTION);
-	if (ts.len <= 0)
-		goto bad_conn_format;
-
-	do {
-		e = lws_tokenize(&ts);
-		switch (e) {
-		case LWS_TOKZE_TOKEN:
-			if (!strcasecmp(ts.token, "upgrade"))
-				e = LWS_TOKZE_ENDED;
-			break;
-
-		case LWS_TOKZE_DELIMITER:
-			break;
-
-		default: /* includes ENDED */
-bad_conn_format:
-			lwsl_err("%s: malformed or absent connection hdr\n",
-				 __func__);
-
-			return 1;
-		}
-	} while (e > 0);
-
-#if defined(LWS_WITH_HTTP2)
-check_protocol:
-#endif
-
-	/*
 	 * Select the first protocol we support from the list
 	 * the client sent us.
+	 *
+	 * Copy it to remove header fragmentation
 	 */
 
-	lws_tokenize_init(&ts, buf, LWS_TOKENIZE_F_COMMA_SEP_LIST |
-				    LWS_TOKENIZE_F_MINUS_NONTERM |
-				    LWS_TOKENIZE_F_RFC7230_DELIMS);
-	ts.len = lws_hdr_copy(wsi, buf, sizeof(buf) - 1, WSI_TOKEN_PROTOCOL);
-	if (ts.len < 0) {
-		lwsl_err("%s: protocol list too long\n", __func__);
+	if (lws_hdr_copy(wsi, protocol_list, sizeof(protocol_list) - 1,
+			 WSI_TOKEN_PROTOCOL) < 0) {
+		lwsl_err("protocol list too long");
 		return 1;
 	}
-	if (!ts.len) {
-		int n = wsi->vhost->default_protocol_index;
-		/*
-		 * some clients only have one protocol and do not send the
-		 * protocol list header... allow it and match to the vhost's
-		 * default protocol (which itself defaults to zero)
-		 */
-		lwsl_info("%s: defaulting to prot handler %d\n", __func__, n);
-
-		lws_bind_protocol(wsi, &wsi->vhost->protocols[n],
-				  "ws upgrade default pcol");
-
-		goto alloc_ws;
-	}
-
-	/* otherwise go through the user-provided protocol list */
 
-	do {
-		e = lws_tokenize(&ts);
-		switch (e) {
-		case LWS_TOKZE_TOKEN:
+	protocol_len = lws_hdr_total_length(wsi, WSI_TOKEN_PROTOCOL);
+	protocol_list[protocol_len] = '\0';
+	p = protocol_list;
+	hit = 0;
 
-			if (lws_tokenize_cstr(&ts, name, sizeof(name))) {
-				lwsl_err("%s: pcol name too long\n", __func__);
-
-				return 1;
-			}
-			lwsl_debug("checking %s\n", name);
-			pcol = lws_vhost_name_to_protocol(wsi->vhost, name);
-			if (pcol) {
-				/* if we know it, bind to it and stop looking */
-				lws_bind_protocol(wsi, pcol, "ws upg pcol");
-				e = LWS_TOKZE_ENDED;
+	while (*p && !hit) {
+		n = 0;
+		non_space_char_found = 0;
+		while (n < (int)sizeof(protocol_name) - 1 &&
+		       *p && *p != ',') {
+			/* ignore leading spaces */
+			if (!non_space_char_found && *p == ' ') {
+				n++;
+				continue;
 			}
-			break;
+			non_space_char_found = 1;
+			protocol_name[n++] = *p++;
+		}
+		protocol_name[n] = '\0';
+		if (*p)
+			p++;
 
-		case LWS_TOKZE_DELIMITER:
-		case LWS_TOKZE_ENDED:
-			break;
+		lwsl_debug("checking %s\n", protocol_name);
 
-		default:
-			lwsl_err("%s: malformatted protocol list", __func__);
+		n = 0;
+		while (wsi->vhost->protocols[n].callback) {
+			lwsl_debug("try %s\n",
+				  wsi->vhost->protocols[n].name);
+
+			if (wsi->vhost->protocols[n].name &&
+			    !strcmp(wsi->vhost->protocols[n].name,
+				    protocol_name)) {
+				wsi->protocol = &wsi->vhost->protocols[n];
+				hit = 1;
+				break;
+			}
 
-			return 1;
+			n++;
 		}
-	} while (e > 0);
+	}
 
 	/* we didn't find a protocol he wanted? */
 
-	if (!pcol) {
-		lwsl_notice("No supported protocol \"%s\"\n", buf);
-
-		return 1;
+	if (!hit) {
+		if (lws_hdr_simple_ptr(wsi, WSI_TOKEN_PROTOCOL)) {
+			lwsl_notice("No protocol from \"%s\" supported\n",
+				 protocol_list);
+			return 1;
+		}
+		/*
+		 * some clients only have one protocol and
+		 * do not send the protocol list header...
+		 * allow it and match to the vhost's default
+		 * protocol (which itself defaults to zero)
+		 */
+		lwsl_info("defaulting to prot handler %d\n",
+			wsi->vhost->default_protocol_index);
+		n = wsi->vhost->default_protocol_index;
+		wsi->protocol = &wsi->vhost->protocols[
+			      (int)wsi->vhost->default_protocol_index];
 	}
 
-alloc_ws:
-
 	/* allocate the ws struct for the wsi */
-
 	wsi->ws = lws_zalloc(sizeof(*wsi->ws), "ws struct");
 	if (!wsi->ws) {
 		lwsl_notice("OOM\n");
@@ -438,9 +383,6 @@ alloc_ws:
 				lwsl_notice("h2 ws handshake failed\n");
 				return 1;
 			}
-			lws_role_transition(wsi,
-					    LWSIFR_SERVER | LWSIFR_P_ENCAP_H2,
-					    LRS_ESTABLISHED, &role_ops_ws);
 		} else
 #endif
 		{
@@ -453,6 +395,28 @@ alloc_ws:
 		break;
 	}
 
+	lws_same_vh_protocol_insert(wsi, n);
+
+	/*
+	 * We are upgrading to ws, so http/1.1 + h2 and keepalive + pipelined
+	 * header considerations about keeping the ah around no longer apply.
+	 *
+	 * However it's common for the first ws protocol data to have been
+	 * coalesced with the browser upgrade request and to already be in the
+	 * ah rx buffer.
+	 */
+
+	lws_pt_lock(pt, __func__);
+
+	if (wsi->h2_stream_carries_ws)
+		lws_role_transition(wsi, LWSIFR_SERVER | LWSIFR_P_ENCAP_H2,
+				    LRS_ESTABLISHED, &role_ops_ws);
+	else
+		lws_role_transition(wsi, LWSIFR_SERVER, LRS_ESTABLISHED,
+				    &role_ops_ws);
+
+	lws_pt_unlock(pt);
+
 	lws_server_init_wsi_for_ws(wsi);
 	lwsl_parser("accepted v%02d connection\n", wsi->ws->ietf_spec_revision);
 
@@ -479,8 +443,7 @@ handshake_0405(struct lws_context *context, struct lws *wsi)
 		goto bail;
 	}
 
-	if (lws_hdr_total_length(wsi, WSI_TOKEN_KEY) >=
-	    MAX_WEBSOCKET_04_KEY_LEN) {
+	if (lws_hdr_total_length(wsi, WSI_TOKEN_KEY) >= MAX_WEBSOCKET_04_KEY_LEN) {
 		lwsl_warn("Client key too long %d\n", MAX_WEBSOCKET_04_KEY_LEN);
 		goto bail;
 	}
@@ -510,8 +473,7 @@ handshake_0405(struct lws_context *context, struct lws *wsi)
 
 	/* make a buffer big enough for everything */
 
-	response = (char *)pt->serv_buf + MAX_WEBSOCKET_04_KEY_LEN +
-		   256 + LWS_PRE;
+	response = (char *)pt->serv_buf + MAX_WEBSOCKET_04_KEY_LEN + 256 + LWS_PRE;
 	p = response;
 	LWS_CPYAPP(p, "HTTP/1.1 101 Switching Protocols\x0d\x0a"
 		      "Upgrade: WebSocket\x0d\x0a"
@@ -604,9 +566,9 @@ bail:
 static int
 lws_ws_frame_rest_is_payload(struct lws *wsi, uint8_t **buf, size_t len)
 {
-	unsigned int avail = (unsigned int)len;
 	uint8_t *buffer = *buf, mask[4];
 	struct lws_tokens ebuf;
+	unsigned int avail = (unsigned int)len;
 #if !defined(LWS_WITHOUT_EXTENSIONS)
 	unsigned int old_packet_length = (int)wsi->ws->rx_packet_length;
 #endif
@@ -638,7 +600,7 @@ lws_ws_frame_rest_is_payload(struct lws *wsi, uint8_t **buf, size_t len)
 	if (avail > len)
 		avail = (unsigned int)len;
 
-	if (!avail)
+	if (avail <= 0)
 		return 0;
 
 	ebuf.token = (char *)buffer;
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/lws-genhash.c b/thirdparty/libwebsockets/tls/mbedtls/lws-genhash.c
index ce4ee6e382..ce4ee6e382 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/lws-genhash.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/lws-genhash.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/lws-genrsa.c b/thirdparty/libwebsockets/tls/mbedtls/lws-genrsa.c
index 99b2e75653..70a9fcf42c 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/lws-genrsa.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/lws-genrsa.c
@@ -36,6 +36,8 @@ lws_jwk_destroy_genrsa_elements(struct lws_genrsa_elements *el)
 LWS_VISIBLE int
 lws_genrsa_create(struct lws_genrsa_ctx *ctx, struct lws_genrsa_elements *el)
 {
+	int n;
+
 	memset(ctx, 0, sizeof(*ctx));
 	ctx->ctx = lws_zalloc(sizeof(*ctx->ctx), "genrsa");
 	if (!ctx->ctx)
@@ -44,8 +46,6 @@ lws_genrsa_create(struct lws_genrsa_ctx *ctx, struct lws_genrsa_elements *el)
 	mbedtls_rsa_init(ctx->ctx, MBEDTLS_RSA_PKCS_V15, 0);
 
 	{
-		int n;
-
 		mbedtls_mpi *mpi[LWS_COUNT_RSA_ELEMENTS] = {
 			&ctx->ctx->E, &ctx->ctx->N, &ctx->ctx->D, &ctx->ctx->P,
 			&ctx->ctx->Q, &ctx->ctx->DP, &ctx->ctx->DQ,
@@ -129,7 +129,7 @@ cleanup_1:
 
 LWS_VISIBLE int
 lws_genrsa_public_decrypt(struct lws_genrsa_ctx *ctx, const uint8_t *in,
-			  size_t in_len, uint8_t *out, size_t out_max)
+			   size_t in_len, uint8_t *out, size_t out_max)
 {
 	size_t olen = 0;
 	int n;
@@ -149,7 +149,7 @@ lws_genrsa_public_decrypt(struct lws_genrsa_ctx *ctx, const uint8_t *in,
 
 LWS_VISIBLE int
 lws_genrsa_public_encrypt(struct lws_genrsa_ctx *ctx, const uint8_t *in,
-			  size_t in_len, uint8_t *out)
+			   size_t in_len, uint8_t *out)
 {
 	int n;
 
@@ -213,8 +213,8 @@ lws_genrsa_public_verify(struct lws_genrsa_ctx *ctx, const uint8_t *in,
 
 LWS_VISIBLE int
 lws_genrsa_public_sign(struct lws_genrsa_ctx *ctx, const uint8_t *in,
-		       enum lws_genhash_types hash_type, uint8_t *sig,
-		       size_t sig_len)
+			 enum lws_genhash_types hash_type, uint8_t *sig,
+			 size_t sig_len)
 {
 	int n, h = lws_genrsa_genrsa_hash_to_mbed_hash(hash_type);
 
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/mbedtls-client.c b/thirdparty/libwebsockets/tls/mbedtls/mbedtls-client.c
index 84270c15bc..a7864ab790 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/mbedtls-client.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/mbedtls-client.c
@@ -30,6 +30,7 @@ OpenSSL_client_verify_callback(int preverify_ok, X509_STORE_CTX *x509_ctx)
 int
 lws_ssl_client_bio_create(struct lws *wsi)
 {
+	X509_VERIFY_PARAM *param;
 	char hostname[128], *p;
 	const char *alpn_comma = wsi->context->tls.alpn_default;
 	struct alpn_ctx protos;
@@ -62,7 +63,7 @@ lws_ssl_client_bio_create(struct lws *wsi)
 		SSL_set_info_callback(wsi->tls.ssl, lws_ssl_info_callback);
 
 	if (!(wsi->tls.use_ssl & LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK)) {
-		X509_VERIFY_PARAM *param = SSL_get0_param(wsi->tls.ssl);
+		param = SSL_get0_param(wsi->tls.ssl);
 		/* Enable automatic hostname checks */
 	//	X509_VERIFY_PARAM_set_hostflags(param,
 	//				X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS);
@@ -187,8 +188,6 @@ lws_tls_client_create_vhost_context(struct lws_vhost *vh,
 				    const struct lws_context_creation_info *info,
 				    const char *cipher_list,
 				    const char *ca_filepath,
-				    const void *ca_mem,
-				    unsigned int ca_mem_len,
 				    const char *cert_filepath,
 				    const char *private_key_filepath)
 {
@@ -215,20 +214,16 @@ lws_tls_client_create_vhost_context(struct lws_vhost *vh,
 		return 1;
 	}
 
-	if (!ca_filepath && (!ca_mem || !ca_mem_len))
+	if (!ca_filepath)
 		return 0;
 
-	if (ca_filepath) {
-		if (alloc_file(vh->context, ca_filepath, &buf, &len)) {
-			lwsl_err("Load CA cert file %s failed\n", ca_filepath);
-			return 1;
-		}
-		vh->tls.x509_client_CA = d2i_X509(NULL, buf, len);
-		free(buf);
-	} else {
-		vh->tls.x509_client_CA = d2i_X509(NULL, (uint8_t*)ca_mem, ca_mem_len);
+	if (alloc_file(vh->context, ca_filepath, &buf, &len)) {
+		lwsl_err("Load CA cert file %s failed\n", ca_filepath);
+		return 1;
 	}
 
+	vh->tls.x509_client_CA = d2i_X509(NULL, buf, len);
+	free(buf);
 	if (!vh->tls.x509_client_CA) {
 		lwsl_err("client CA: x509 parse failed\n");
 		return 1;
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/mbedtls-server.c b/thirdparty/libwebsockets/tls/mbedtls/mbedtls-server.c
index df6ddf2c61..f17c7e5494 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/mbedtls-server.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/mbedtls-server.c
@@ -294,20 +294,18 @@ lws_tls_server_accept(struct lws *wsi)
 	if (n == 1) {
 
 		if (strstr(wsi->vhost->name, ".invalid")) {
-			lwsl_notice("%s: vhost has .invalid, "
-				    "rejecting accept\n", __func__);
+			lwsl_notice("%s: vhost has .invalid, rejecting accept\n", __func__);
 
 			return LWS_SSL_CAPABLE_ERROR;
 		}
 
-		n = lws_tls_peer_cert_info(wsi, LWS_TLS_CERT_INFO_COMMON_NAME,
-					   &ir, sizeof(ir.ns.name));
+		n = lws_tls_peer_cert_info(wsi, LWS_TLS_CERT_INFO_COMMON_NAME, &ir,
+					   sizeof(ir.ns.name));
 		if (!n)
 			lwsl_notice("%s: client cert CN '%s'\n",
 				    __func__, ir.ns.name);
 		else
-			lwsl_info("%s: couldn't get client cert CN\n",
-				  __func__);
+			lwsl_info("%s: couldn't get client cert CN\n", __func__);
 		return LWS_SSL_CAPABLE_DONE;
 	}
 
@@ -324,8 +322,7 @@ lws_tls_server_accept(struct lws *wsi)
 
 	if (m == SSL_ERROR_WANT_READ || SSL_want_read(wsi->tls.ssl)) {
 		if (lws_change_pollfd(wsi, 0, LWS_POLLIN)) {
-			lwsl_info("%s: WANT_READ change_pollfd failed\n",
-				  __func__);
+			lwsl_info("%s: WANT_READ change_pollfd failed\n", __func__);
 			return LWS_SSL_CAPABLE_ERROR;
 		}
 
@@ -336,8 +333,7 @@ lws_tls_server_accept(struct lws *wsi)
 		lwsl_debug("%s: WANT_WRITE\n", __func__);
 
 		if (lws_change_pollfd(wsi, 0, LWS_POLLOUT)) {
-			lwsl_info("%s: WANT_WRITE change_pollfd failed\n",
-				  __func__);
+			lwsl_info("%s: WANT_WRITE change_pollfd failed\n", __func__);
 			return LWS_SSL_CAPABLE_ERROR;
 		}
 		return LWS_SSL_CAPABLE_MORE_SERVICE_WRITE;
@@ -558,8 +554,7 @@ lws_tls_acme_sni_cert_create(struct lws_vhost *vhost, const char *san_a,
 		//lwsl_hexdump_level(LLL_DEBUG, pkey_asn1, n);
 
 		/* and to use our generated private key */
-		n = SSL_CTX_use_PrivateKey_ASN1(0, vhost->tls.ssl_ctx,
-						pkey_asn1, m);
+		n = SSL_CTX_use_PrivateKey_ASN1(0, vhost->tls.ssl_ctx, pkey_asn1, m);
 		lws_free(pkey_asn1);
 		if (n != 1) {
 			lwsl_err("%s: SSL_CTX_use_PrivateKey_ASN1 failed\n",
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/ssl.c b/thirdparty/libwebsockets/tls/mbedtls/ssl.c
index b81f88862b..f311ef50e3 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/ssl.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/ssl.c
@@ -33,8 +33,7 @@ lws_context_init_ssl_library(const struct lws_context_creation_info *info)
 	lwsl_info(" Compiled with MbedTLS support\n");
 
 	if (!lws_check_opt(info->options, LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT))
-		lwsl_info(" SSL disabled: no "
-			  "LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT\n");
+		lwsl_info(" SSL disabled: no LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT\n");
 
 	return 0;
 }
@@ -70,17 +69,16 @@ lws_ssl_capable_read(struct lws *wsi, unsigned char *buf, int len)
 	errno = 0;
 	n = SSL_read(wsi->tls.ssl, buf, len);
 #if defined(LWS_WITH_ESP32)
-	if (!n && errno == LWS_ENOTCONN) {
+	if (!n && errno == ENOTCONN) {
 		lwsl_debug("%p: SSL_read ENOTCONN\n", wsi);
 		return LWS_SSL_CAPABLE_ERROR;
 	}
 #endif
 #if defined(LWS_WITH_STATS)
-	if (!wsi->seen_rx && wsi->accept_start_us) {
+	if (!wsi->seen_rx) {
                 lws_stats_atomic_bump(wsi->context, pt,
                 		      LWSSTATS_MS_SSL_RX_DELAY,
-				lws_time_in_microseconds() -
-				wsi->accept_start_us);
+				time_in_microseconds() - wsi->accept_start_us);
                 lws_stats_atomic_bump(wsi->context, pt,
                 		      LWSSTATS_C_SSL_CONNS_HAD_RX, 1);
 		wsi->seen_rx = 1;
@@ -135,12 +133,23 @@ lws_ssl_capable_read(struct lws *wsi, unsigned char *buf, int len)
 	if (!wsi->tls.ssl)
 		goto bail;
 
-	if (SSL_pending(wsi->tls.ssl) &&
-	    lws_dll_is_null(&wsi->tls.pending_tls_list)) {
+	if (!SSL_pending(wsi->tls.ssl))
+		goto bail;
 
-		lws_dll_lws_add_front(&wsi->tls.pending_tls_list,
-				      &pt->tls.pending_tls_head);
-	}
+	if (wsi->tls.pending_read_list_next)
+		return n;
+	if (wsi->tls.pending_read_list_prev)
+		return n;
+	if (pt->tls.pending_read_list == wsi)
+		return n;
+
+	/* add us to the linked list of guys with pending ssl */
+	if (pt->tls.pending_read_list)
+		pt->tls.pending_read_list->tls.pending_read_list_prev = wsi;
+
+	wsi->tls.pending_read_list_next = pt->tls.pending_read_list;
+	wsi->tls.pending_read_list_prev = NULL;
+	pt->tls.pending_read_list = wsi;
 
 	return n;
 bail:
@@ -180,7 +189,7 @@ lws_ssl_capable_write(struct lws *wsi, unsigned char *buf, int len)
 
 		if (m == SSL_ERROR_WANT_WRITE || SSL_want_write(wsi->tls.ssl)) {
 			lws_set_blocking_send(wsi);
-			lwsl_debug("%s: want write\n", __func__);
+			lwsl_notice("%s: want write\n", __func__);
 
 			return LWS_SSL_CAPABLE_MORE_SERVICE;
 		}
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl3.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl3.h
index 007b392f3e..007b392f3e 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl3.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl3.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_cert.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_cert.h
index 86cf31ad51..86cf31ad51 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_cert.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_cert.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_code.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_code.h
index 80fdbb20f3..80fdbb20f3 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_code.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_code.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_dbg.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_dbg.h
index ad32cb92ff..ad32cb92ff 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_dbg.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_dbg.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_lib.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_lib.h
index 42b2de7501..42b2de7501 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_lib.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_lib.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_methods.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_methods.h
index cd2f8c0533..cd2f8c0533 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_methods.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_methods.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_pkey.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_pkey.h
index e790fcc995..e790fcc995 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_pkey.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_pkey.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_stack.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_stack.h
index 7a7051a026..7a7051a026 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_stack.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_stack.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_types.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_types.h
index 68ac748a28..68ac748a28 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_types.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_types.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_x509.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_x509.h
index 7594d064b4..7594d064b4 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/ssl_x509.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/ssl_x509.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/tls1.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/tls1.h
index 7af1b0157d..7af1b0157d 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/tls1.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/tls1.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/x509_vfy.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/x509_vfy.h
index 26bf6c88a8..26bf6c88a8 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/internal/x509_vfy.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/internal/x509_vfy.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/openssl/ssl.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/openssl/ssl.h
index e2b74fc6af..e2b74fc6af 100755
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/openssl/ssl.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/openssl/ssl.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/platform/ssl_pm.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/platform/ssl_pm.h
index cbbe3aa3a2..cbbe3aa3a2 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/platform/ssl_pm.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/platform/ssl_pm.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/platform/ssl_port.h b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/platform/ssl_port.h
index 74c7634355..74c7634355 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/include/platform/ssl_port.h
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/include/platform/ssl_port.h
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_cert.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_cert.c
index 5c608125ac..5c608125ac 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_cert.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_cert.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_lib.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_lib.c
index 2f688ca9ef..2f688ca9ef 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_lib.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_lib.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_methods.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_methods.c
index 0002360846..0002360846 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_methods.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_methods.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_pkey.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_pkey.c
index 567a33e2c2..567a33e2c2 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_pkey.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_pkey.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_stack.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_stack.c
index da836daf9c..da836daf9c 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_stack.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_stack.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_x509.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_x509.c
index ed79150831..ed79150831 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/library/ssl_x509.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/library/ssl_x509.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/platform/ssl_pm.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/platform/ssl_pm.c
index 4716c1ff56..4716c1ff56 100755
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/platform/ssl_pm.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/platform/ssl_pm.c
diff --git a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/platform/ssl_port.c b/thirdparty/libwebsockets/tls/mbedtls/wrapper/platform/ssl_port.c
index 8c7a31338b..8c7a31338b 100644
--- a/thirdparty/libwebsockets/lib/tls/mbedtls/wrapper/platform/ssl_port.c
+++ b/thirdparty/libwebsockets/tls/mbedtls/wrapper/platform/ssl_port.c
diff --git a/thirdparty/libwebsockets/lib/tls/private.h b/thirdparty/libwebsockets/tls/private.h
index ad01bfd4fb..606e2574dc 100644
--- a/thirdparty/libwebsockets/lib/tls/private.h
+++ b/thirdparty/libwebsockets/tls/private.h
@@ -64,8 +64,6 @@
    #include <openssl/err.h>
    #include <openssl/md5.h>
    #include <openssl/sha.h>
-   #include <openssl/rsa.h>
-   #include <openssl/bn.h>
    #ifdef LWS_HAVE_OPENSSL_ECDH_H
     #include <openssl/ecdh.h>
    #endif
@@ -73,9 +71,8 @@
   #endif /* not mbedtls */
   #if defined(OPENSSL_VERSION_NUMBER)
    #if (OPENSSL_VERSION_NUMBER < 0x0009080afL)
-/*
- * later openssl defines this to negate the presence of tlsext... but it was
- * only introduced at 0.9.8j.  Earlier versions don't know it exists so don't
+/* later openssl defines this to negate the presence of tlsext... but it was only
+ * introduced at 0.9.8j.  Earlier versions don't know it exists so don't
  * define it... making it look like the feature exists...
  */
     #define OPENSSL_NO_TLSEXT
@@ -118,7 +115,7 @@ struct lws_context_tls {
 };
 
 struct lws_pt_tls {
-	struct lws_dll_lws pending_tls_head;
+	struct lws *pending_read_list; /* linked list */
 };
 
 struct lws_tls_ss_pieces;
@@ -152,7 +149,7 @@ struct lws_vhost_tls {
 struct lws_lws_tls {
 	lws_tls_conn *ssl;
 	lws_tls_bio *client_bio;
-	struct lws_dll_lws pending_tls_list;
+	struct lws *pending_read_list_prev, *pending_read_list_next;
 	unsigned int use_ssl;
 	unsigned int redirect_to_https:1;
 };
@@ -214,8 +211,8 @@ lws_tls_generic_cert_checks(struct lws_vhost *vhost, const char *cert,
 			    const char *private_key);
 LWS_EXTERN int
 lws_tls_alloc_pem_to_der_file(struct lws_context *context, const char *filename,
-			      const char *inbuf, lws_filepos_t inlen,
-			      uint8_t **buf, lws_filepos_t *amount);
+			const char *inbuf, lws_filepos_t inlen,
+		      uint8_t **buf, lws_filepos_t *amount);
 
 #if !defined(LWS_NO_SERVER)
  LWS_EXTERN int
@@ -263,8 +260,6 @@ lws_tls_client_create_vhost_context(struct lws_vhost *vh,
 				    const struct lws_context_creation_info *info,
 				    const char *cipher_list,
 				    const char *ca_filepath,
-				    const void *ca_mem,
-				    unsigned int ca_mem_len,
 				    const char *cert_filepath,
 				    const char *private_key_filepath);
 
@@ -283,4 +278,4 @@ lws_ssl_info_callback(const lws_tls_conn *ssl, int where, int ret);
 int
 lws_tls_fake_POLLIN_for_buffered(struct lws_context_per_thread *pt);
 
-#endif
+#endif
\ No newline at end of file
diff --git a/thirdparty/libwebsockets/lib/tls/tls-client.c b/thirdparty/libwebsockets/tls/tls-client.c
index f69c685fa7..70eb6f6078 100644
--- a/thirdparty/libwebsockets/lib/tls/tls-client.c
+++ b/thirdparty/libwebsockets/tls/tls-client.c
@@ -1,7 +1,7 @@
 /*
  * libwebsockets - client-related ssl code independent of backend
  *
- * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -89,10 +89,10 @@ lws_ssl_client_connect2(struct lws *wsi, char *errbuf, int len)
 int lws_context_init_client_ssl(const struct lws_context_creation_info *info,
 				struct lws_vhost *vhost)
 {
-	const char *private_key_filepath = info->ssl_private_key_filepath;
-	const char *cert_filepath = info->ssl_cert_filepath;
 	const char *ca_filepath = info->ssl_ca_filepath;
 	const char *cipher_list = info->ssl_cipher_list;
+	const char *private_key_filepath = info->ssl_private_key_filepath;
+	const char *cert_filepath = info->ssl_cert_filepath;
 	struct lws wsi;
 
 	if (vhost->options & LWS_SERVER_OPTION_ONLY_RAW)
@@ -128,10 +128,7 @@ int lws_context_init_client_ssl(const struct lws_context_creation_info *info,
 	}
 
 	if (lws_tls_client_create_vhost_context(vhost, info, cipher_list,
-						ca_filepath,
-						info->client_ssl_ca_mem,
-						info->client_ssl_ca_mem_len,
-						cert_filepath,
+						ca_filepath, cert_filepath,
 						private_key_filepath))
 		return 1;
 
@@ -142,12 +139,12 @@ int lws_context_init_client_ssl(const struct lws_context_creation_info *info,
 	 * lws_get_context() in the callback
 	 */
 	memset(&wsi, 0, sizeof(wsi));
-	wsi.vhost = vhost; /* not a real bound wsi */
+	wsi.vhost = vhost;
 	wsi.context = vhost->context;
 
 	vhost->protocols[0].callback(&wsi,
 			LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS,
-				     vhost->tls.ssl_client_ctx, NULL, 0);
+				       vhost->tls.ssl_client_ctx, NULL, 0);
 
 	return 0;
 }
diff --git a/thirdparty/libwebsockets/lib/tls/tls-server.c b/thirdparty/libwebsockets/tls/tls-server.c
index 9d3f70dbea..440e790660 100644
--- a/thirdparty/libwebsockets/lib/tls/tls-server.c
+++ b/thirdparty/libwebsockets/tls/tls-server.c
@@ -56,8 +56,7 @@ lws_context_init_alpn(struct lws_vhost *vhost)
 					vhost->tls.alpn_ctx.data,
 					sizeof(vhost->tls.alpn_ctx.data) - 1);
 
-	SSL_CTX_set_alpn_select_cb(vhost->tls.ssl_ctx, alpn_cb,
-				   &vhost->tls.alpn_ctx);
+	SSL_CTX_set_alpn_select_cb(vhost->tls.ssl_ctx, alpn_cb, &vhost->tls.alpn_ctx);
 #else
 	lwsl_err(
 		" HTTP2 / ALPN configured but not supported by OpenSSL 0x%lx\n",
@@ -140,7 +139,7 @@ lws_context_init_server_ssl(const struct lws_context_creation_info *info,
 	 * lws_get_context() in the callback
 	 */
 	memset(&wsi, 0, sizeof(wsi));
-	wsi.vhost = vhost; /* not a real bound wsi */
+	wsi.vhost = vhost;
 	wsi.context = context;
 
 	/*
@@ -178,10 +177,10 @@ LWS_VISIBLE int
 lws_server_socket_service_ssl(struct lws *wsi, lws_sockfd_type accept_fd)
 {
 	struct lws_context *context = wsi->context;
-	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
 	struct lws_vhost *vh;
-        char buf[256];
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
 	int n;
+        char buf[256];
 
         (void)buf;
 
@@ -313,14 +312,12 @@ lws_server_socket_service_ssl(struct lws *wsi, lws_sockfd_type accept_fd)
 		/* normal SSL connection processing path */
 
 #if defined(LWS_WITH_STATS)
-		/* only set this the first time around */
 		if (!wsi->accept_start_us)
-			wsi->accept_start_us = lws_time_in_microseconds();
+			wsi->accept_start_us = time_in_microseconds();
 #endif
 		errno = 0;
 		lws_stats_atomic_bump(wsi->context, pt,
-				      LWSSTATS_C_SSL_CONNECTIONS_ACCEPT_SPIN,
-				      1);
+				      LWSSTATS_C_SSL_CONNECTIONS_ACCEPT_SPIN, 1);
 		n = lws_tls_server_accept(wsi);
 		lws_latency(context, wsi,
 			"SSL_accept LRS_SSL_ACK_PENDING\n", n, n == 1);
@@ -330,8 +327,7 @@ lws_server_socket_service_ssl(struct lws *wsi, lws_sockfd_type accept_fd)
 			break;
 		case LWS_SSL_CAPABLE_ERROR:
 			lws_stats_atomic_bump(wsi->context, pt,
-					      LWSSTATS_C_SSL_CONNECTIONS_FAILED,
-					      1);
+					      LWSSTATS_C_SSL_CONNECTIONS_FAILED, 1);
 	                lwsl_info("SSL_accept failed socket %u: %d\n",
 	                		wsi->desc.sockfd, n);
 			wsi->socket_is_permanently_unusable = 1;
@@ -344,12 +340,10 @@ lws_server_socket_service_ssl(struct lws *wsi, lws_sockfd_type accept_fd)
 		lws_stats_atomic_bump(wsi->context, pt,
 				      LWSSTATS_C_SSL_CONNECTIONS_ACCEPTED, 1);
 #if defined(LWS_WITH_STATS)
-		if (wsi->accept_start_us)
-			lws_stats_atomic_bump(wsi->context, pt,
+		lws_stats_atomic_bump(wsi->context, pt,
 				      LWSSTATS_MS_SSL_CONNECTIONS_ACCEPTED_DELAY,
-				      lws_time_in_microseconds() -
-					      wsi->accept_start_us);
-		wsi->accept_start_us = lws_time_in_microseconds();
+				      time_in_microseconds() - wsi->accept_start_us);
+		wsi->accept_start_us = time_in_microseconds();
 #endif
 
 accepted:
@@ -360,7 +354,7 @@ accepted:
 			if (!vh->being_destroyed && wsi->tls.ssl &&
 			    vh->tls.ssl_ctx == lws_tls_ctx_from_wsi(wsi)) {
 				lwsl_info("setting wsi to vh %s\n", vh->name);
-				lws_vhost_bind_wsi(vh, wsi);
+				wsi->vhost = vh;
 				break;
 			}
 			vh = vh->vhost_next;
diff --git a/thirdparty/libwebsockets/lib/tls/tls.c b/thirdparty/libwebsockets/tls/tls.c
index a32951689f..92b7c5593c 100644
--- a/thirdparty/libwebsockets/lib/tls/tls.c
+++ b/thirdparty/libwebsockets/tls/tls.c
@@ -30,18 +30,18 @@
 int
 lws_tls_fake_POLLIN_for_buffered(struct lws_context_per_thread *pt)
 {
+	struct lws *wsi, *wsi_next;
 	int ret = 0;
 
-	lws_start_foreach_dll_safe(struct lws_dll_lws *, p, p1,
-				   pt->tls.pending_tls_head.next) {
-		struct lws *wsi = lws_container_of(p, struct lws,
-						   tls.pending_tls_list);
-
+	wsi = pt->tls.pending_read_list;
+	while (wsi && wsi->position_in_fds_table != LWS_NO_FDS_POS) {
+		wsi_next = wsi->tls.pending_read_list_next;
 		pt->fds[wsi->position_in_fds_table].revents |=
 			pt->fds[wsi->position_in_fds_table].events & LWS_POLLIN;
 		ret |= pt->fds[wsi->position_in_fds_table].revents & LWS_POLLIN;
 
-	} lws_end_foreach_dll_safe(p, p1);
+		wsi = wsi_next;
+	}
 
 	return !!ret;
 }
@@ -49,10 +49,29 @@ lws_tls_fake_POLLIN_for_buffered(struct lws_context_per_thread *pt)
 void
 __lws_ssl_remove_wsi_from_buffered_list(struct lws *wsi)
 {
-	if (lws_dll_is_null(&wsi->tls.pending_tls_list))
+	struct lws_context *context = wsi->context;
+	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+	if (!wsi->tls.pending_read_list_prev &&
+	    !wsi->tls.pending_read_list_next &&
+	    pt->tls.pending_read_list != wsi)
+		/* we are not on the list */
 		return;
 
-	lws_dll_lws_remove(&wsi->tls.pending_tls_list);
+	/* point previous guy's next to our next */
+	if (!wsi->tls.pending_read_list_prev)
+		pt->tls.pending_read_list = wsi->tls.pending_read_list_next;
+	else
+		wsi->tls.pending_read_list_prev->tls.pending_read_list_next =
+			wsi->tls.pending_read_list_next;
+
+	/* point next guy's previous to our previous */
+	if (wsi->tls.pending_read_list_next)
+		wsi->tls.pending_read_list_next->tls.pending_read_list_prev =
+			wsi->tls.pending_read_list_prev;
+
+	wsi->tls.pending_read_list_prev = NULL;
+	wsi->tls.pending_read_list_next = NULL;
 }
 
 void
@@ -154,12 +173,12 @@ bail:
 
 int
 lws_tls_alloc_pem_to_der_file(struct lws_context *context, const char *filename,
-			      const char *inbuf, lws_filepos_t inlen,
-			      uint8_t **buf, lws_filepos_t *amount)
+			const char *inbuf, lws_filepos_t inlen,
+		      uint8_t **buf, lws_filepos_t *amount)
 {
 	const uint8_t *pem, *p, *end;
-	lws_filepos_t len;
 	uint8_t *q;
+	lws_filepos_t len;
 	int n;
 
 	if (filename) {
@@ -219,25 +238,23 @@ bail:
 int
 lws_tls_check_cert_lifetime(struct lws_vhost *v)
 {
+	union lws_tls_cert_info_results ir;
 	time_t now = (time_t)lws_now_secs(), life = 0;
 	struct lws_acme_cert_aging_args caa;
-	union lws_tls_cert_info_results ir;
 	int n;
 
 	if (v->tls.ssl_ctx && !v->tls.skipped_certs) {
 
-		if (now < 1542933698) /* Nov 23 2018 00:42 UTC */
+		if (now < 1464083026) /* May 2016 */
 			/* our clock is wrong and we can't judge the certs */
 			return -1;
 
-		n = lws_tls_vhost_cert_info(v, LWS_TLS_CERT_INFO_VALIDITY_TO,
-					    &ir, 0);
+		n = lws_tls_vhost_cert_info(v, LWS_TLS_CERT_INFO_VALIDITY_TO, &ir, 0);
 		if (n)
 			return 1;
 
 		life = (ir.time - now) / (24 * 3600);
-		lwsl_notice("   vhost %s: cert expiry: %dd\n", v->name,
-			    (int)life);
+		lwsl_notice("   vhost %s: cert expiry: %dd\n", v->name, (int)life);
 	} else
 		lwsl_notice("   vhost %s: no cert\n", v->name);
 
@@ -429,7 +446,7 @@ lws_tls_cert_updated(struct lws_context *context, const char *certpath,
 	wsi.context = context;
 
 	lws_start_foreach_ll(struct lws_vhost *, v, context->vhost_list) {
-		wsi.vhost = v; /* not a real bound wsi */
+		wsi.vhost = v;
 		if (v->tls.alloc_cert_path && v->tls.key_path &&
 		    !strcmp(v->tls.alloc_cert_path, certpath) &&
 		    !strcmp(v->tls.key_path, keypath)) {
diff --git a/thirdparty/libwebsockets/uwp_fixes.diff b/thirdparty/libwebsockets/uwp_fixes.diff
index 3350f2a661..21c3275bba 100644
--- a/thirdparty/libwebsockets/uwp_fixes.diff
+++ b/thirdparty/libwebsockets/uwp_fixes.diff
@@ -1,8 +1,8 @@
-diff --git a/thirdparty/libwebsockets/lib/plat/windows/windows-file.c b/thirdparty/libwebsockets/lib/plat/windows/windows-file.c
-index 6516b70b0..eb73aab7f 100644
---- a/thirdparty/libwebsockets/lib/plat/windows/windows-file.c
-+++ b/thirdparty/libwebsockets/lib/plat/windows/windows-file.c
-@@ -36,9 +36,20 @@ _lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+diff --git a/thirdparty/libwebsockets/plat/lws-plat-win.c b/thirdparty/libwebsockets/plat/lws-plat-win.c
+index bd513b494..1850b6425 100644
+--- a/thirdparty/libwebsockets/plat/lws-plat-win.c
++++ b/thirdparty/libwebsockets/plat/lws-plat-win.c
+@@ -641,9 +641,20 @@ _lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
  	HANDLE ret;
  	WCHAR buf[MAX_PATH];
  	lws_fop_fd_t fop_fd;
@@ -24,7 +24,7 @@ index 6516b70b0..eb73aab7f 100644
  	if (((*flags) & 7) == _O_RDONLY) {
  		ret = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ,
  			  NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-@@ -46,6 +57,7 @@ _lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+@@ -651,6 +662,7 @@ _lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
  		ret = CreateFileW(buf, GENERIC_WRITE, 0, NULL,
  			  CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
  	}
@@ -32,7 +32,7 @@ index 6516b70b0..eb73aab7f 100644
  
  	if (ret == LWS_INVALID_FILE)
  		goto bail;
-@@ -58,9 +70,9 @@ _lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+@@ -663,9 +675,9 @@ _lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
  	fop_fd->fd = ret;
  	fop_fd->filesystem_priv = NULL; /* we don't use it */
  	fop_fd->flags = *flags;
diff --git a/thirdparty/libwebsockets/win32helpers/getopt.c b/thirdparty/libwebsockets/win32helpers/getopt.c
index 2181f1cb12..3bb21f6f28 100644
--- a/thirdparty/libwebsockets/win32helpers/getopt.c
+++ b/thirdparty/libwebsockets/win32helpers/getopt.c
@@ -1,153 +1,153 @@
-/*	$NetBSD: getopt.c,v 1.16 1999/12/02 13:15:56 kleink Exp $	*/

-

-/*

- * Copyright (c) 1987, 1993, 1994

- *	The Regents of the University of California.  All rights reserved.

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions

- * are met:

- * 1. Redistributions of source code must retain the above copyright

- *    notice, this list of conditions and the following disclaimer.

- * 2. Redistributions in binary form must reproduce the above copyright

- *    notice, this list of conditions and the following disclaimer in the

- *    documentation and/or other materials provided with the distribution.

- * 3. All advertising materials mentioning features or use of this software

- *    must display the following acknowledgement:

- *	This product includes software developed by the University of

- *	California, Berkeley and its contributors.

- * 4. Neither the name of the University nor the names of its contributors

- *    may be used to endorse or promote products derived from this software

- *    without specific prior written permission.

- *

- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

- * SUCH DAMAGE.

- */

-

-#if 0

-static char sccsid[] = "@(#)getopt.c	8.3 (Berkeley) 4/27/95";

-#endif

-

-#include <assert.h>

-#include <errno.h>

-#include <stdio.h>

-#include <string.h>

-

-#define __P(x) x

-#define _DIAGASSERT(x) assert(x)

-

-#ifdef __weak_alias

-__weak_alias(getopt,_getopt);

-#endif

-

-

-int	opterr = 1,		/* if error message should be printed */

-	optind = 1,		/* index into parent argv vector */

-	optopt,			/* character checked for validity */

-	optreset;		/* reset getopt */

-char	*optarg;		/* argument associated with option */

-

-static char * _progname __P((char *));

-int getopt_internal __P((int, char * const *, const char *));

-

-static char *

-_progname(nargv0)

-	char * nargv0;

-{

-	char * tmp;

-

-	_DIAGASSERT(nargv0 != NULL);

-

-	tmp = strrchr(nargv0, '/');

-	if (tmp)

-		tmp++;

-	else

-		tmp = nargv0;

-	return(tmp);

-}

-

-#define	BADCH	(int)'?'

-#define	BADARG	(int)':'

-#define	EMSG	""

-

-/*

- * getopt --

- *	Parse argc/argv argument vector.

- */

-int

-getopt(nargc, nargv, ostr)

-	int nargc;

-	char * const nargv[];

-	const char *ostr;

-{

-	static char *__progname = 0;

-	static char *place = EMSG;		/* option letter processing */

-	char *oli;				/* option letter list index */

-        __progname = __progname?__progname:_progname(*nargv);

-

-	_DIAGASSERT(nargv != NULL);

-	_DIAGASSERT(ostr != NULL);

-

-	if (optreset || !*place) {		/* update scanning pointer */

-		optreset = 0;

-		if (optind >= nargc || *(place = nargv[optind]) != '-') {

-			place = EMSG;

-			return (-1);

-		}

-		if (place[1] && *++place == '-'	/* found "--" */

-		    && place[1] == '\0') {

-			++optind;

-			place = EMSG;

-			return (-1);

-		}

-	}					/* option letter okay? */

-	if ((optopt = (int)*place++) == (int)':' ||

-	    !(oli = strchr(ostr, optopt))) {

-		/*

-		 * if the user didn't specify '-' as an option,

-		 * assume it means -1.

-		 */

-		if (optopt == (int)'-')

-			return (-1);

-		if (!*place)

-			++optind;

-		if (opterr && *ostr != ':')

-			(void)fprintf(stderr,

-			    "%s: illegal option -- %c\n", __progname, optopt);

-		return (BADCH);

-	}

-	if (*++oli != ':') {			/* don't need argument */

-		optarg = NULL;

-		if (!*place)

-			++optind;

-	}

-	else {					/* need an argument */

-		if (*place)			/* no white space */

-			optarg = place;

-		else if (nargc <= ++optind) {	/* no arg */

-			place = EMSG;

-			if (*ostr == ':')

-				return (BADARG);

-			if (opterr)

-				(void)fprintf(stderr,

-				    "%s: option requires an argument -- %c\n",

-				    __progname, optopt);

-			return (BADCH);

-		}

-	 	else				/* white space */

-			optarg = nargv[optind];

-		place = EMSG;

-		++optind;

-	}

-	return (optopt);			/* dump back option letter */

-}

-

+/*	$NetBSD: getopt.c,v 1.16 1999/12/02 13:15:56 kleink Exp $	*/
+
+/*
+ * Copyright (c) 1987, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if 0
+static char sccsid[] = "@(#)getopt.c	8.3 (Berkeley) 4/27/95";
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#define __P(x) x
+#define _DIAGASSERT(x) assert(x)
+
+#ifdef __weak_alias
+__weak_alias(getopt,_getopt);
+#endif
+
+
+int	opterr = 1,		/* if error message should be printed */
+	optind = 1,		/* index into parent argv vector */
+	optopt,			/* character checked for validity */
+	optreset;		/* reset getopt */
+char	*optarg;		/* argument associated with option */
+
+static char * _progname __P((char *));
+int getopt_internal __P((int, char * const *, const char *));
+
+static char *
+_progname(nargv0)
+	char * nargv0;
+{
+	char * tmp;
+
+	_DIAGASSERT(nargv0 != NULL);
+
+	tmp = strrchr(nargv0, '/');
+	if (tmp)
+		tmp++;
+	else
+		tmp = nargv0;
+	return(tmp);
+}
+
+#define	BADCH	(int)'?'
+#define	BADARG	(int)':'
+#define	EMSG	""
+
+/*
+ * getopt --
+ *	Parse argc/argv argument vector.
+ */
+int
+getopt(nargc, nargv, ostr)
+	int nargc;
+	char * const nargv[];
+	const char *ostr;
+{
+	static char *__progname = 0;
+	static char *place = EMSG;		/* option letter processing */
+	char *oli;				/* option letter list index */
+        __progname = __progname?__progname:_progname(*nargv);
+
+	_DIAGASSERT(nargv != NULL);
+	_DIAGASSERT(ostr != NULL);
+
+	if (optreset || !*place) {		/* update scanning pointer */
+		optreset = 0;
+		if (optind >= nargc || *(place = nargv[optind]) != '-') {
+			place = EMSG;
+			return (-1);
+		}
+		if (place[1] && *++place == '-'	/* found "--" */
+		    && place[1] == '\0') {
+			++optind;
+			place = EMSG;
+			return (-1);
+		}
+	}					/* option letter okay? */
+	if ((optopt = (int)*place++) == (int)':' ||
+	    !(oli = strchr(ostr, optopt))) {
+		/*
+		 * if the user didn't specify '-' as an option,
+		 * assume it means -1.
+		 */
+		if (optopt == (int)'-')
+			return (-1);
+		if (!*place)
+			++optind;
+		if (opterr && *ostr != ':')
+			(void)fprintf(stderr,
+			    "%s: illegal option -- %c\n", __progname, optopt);
+		return (BADCH);
+	}
+	if (*++oli != ':') {			/* don't need argument */
+		optarg = NULL;
+		if (!*place)
+			++optind;
+	}
+	else {					/* need an argument */
+		if (*place)			/* no white space */
+			optarg = place;
+		else if (nargc <= ++optind) {	/* no arg */
+			place = EMSG;
+			if (*ostr == ':')
+				return (BADARG);
+			if (opterr)
+				(void)fprintf(stderr,
+				    "%s: option requires an argument -- %c\n",
+				    __progname, optopt);
+			return (BADCH);
+		}
+	 	else				/* white space */
+			optarg = nargv[optind];
+		place = EMSG;
+		++optind;
+	}
+	return (optopt);			/* dump back option letter */
+}
+
diff --git a/thirdparty/libwebsockets/win32helpers/getopt_long.c b/thirdparty/libwebsockets/win32helpers/getopt_long.c
index 22e5fa8945..6dfccf367d 100644
--- a/thirdparty/libwebsockets/win32helpers/getopt_long.c
+++ b/thirdparty/libwebsockets/win32helpers/getopt_long.c
@@ -1,240 +1,240 @@
-

-/*

- * Copyright (c) 1987, 1993, 1994, 1996

- *	The Regents of the University of California.  All rights reserved.

- *

- * Redistribution and use in source and binary forms, with or without

- * modification, are permitted provided that the following conditions

- * are met:

- * 1. Redistributions of source code must retain the above copyright

- *    notice, this list of conditions and the following disclaimer.

- * 2. Redistributions in binary form must reproduce the above copyright

- *    notice, this list of conditions and the following disclaimer in the

- *    documentation and/or other materials provided with the distribution.

- * 3. All advertising materials mentioning features or use of this software

- *    must display the following acknowledgement:

- *	This product includes software developed by the University of

- *	California, Berkeley and its contributors.

- * 4. Neither the name of the University nor the names of its contributors

- *    may be used to endorse or promote products derived from this software

- *    without specific prior written permission.

- *

- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

- * SUCH DAMAGE.

- */

-#include <assert.h>

-#include <errno.h>

-#include <stdio.h>

-#include <stdlib.h>

-#include <string.h>

-#include "getopt.h"

-

-#define lws_ptr_diff(head, tail) \

-			((int)((char *)(head) - (char *)(tail)))

-

-extern int	  opterr;	/* if error message should be printed */

-extern int	  optind;	/* index into parent argv vector */

-extern int	  optopt;	/* character checked for validity */

-extern int	  optreset;	/* reset getopt */

-extern char *optarg;	/* argument associated with option */

-

-#define __P(x) x

-#define _DIAGASSERT(x) assert(x)

-

-static char * __progname __P((char *));

-int getopt_internal __P((int, char * const *, const char *));

-

-static char *

-__progname(nargv0)

-	char * nargv0;

-{

-	char * tmp;

-

-	_DIAGASSERT(nargv0 != NULL);

-

-	tmp = strrchr(nargv0, '/');

-	if (tmp)

-		tmp++;

-	else

-		tmp = nargv0;

-	return(tmp);

-}

-

-#define	BADCH	(int)'?'

-#define	BADARG	(int)':'

-#define	EMSG	""

-

-/*

- * getopt --

- *	Parse argc/argv argument vector.

- */

-int

-getopt_internal(nargc, nargv, ostr)

-	int nargc;

-	char * const *nargv;

-	const char *ostr;

-{

-	static char *place = EMSG;		/* option letter processing */

-	char *oli;				/* option letter list index */

-

-	_DIAGASSERT(nargv != NULL);

-	_DIAGASSERT(ostr != NULL);

-

-	if (optreset || !*place) {		/* update scanning pointer */

-		optreset = 0;

-		if (optind >= nargc || *(place = nargv[optind]) != '-') {

-			place = EMSG;

-			return (-1);

-		}

-		if (place[1] && *++place == '-') {	/* found "--" */

-			/* ++optind; */

-			place = EMSG;

-			return (-2);

-		}

-	}					/* option letter okay? */

-	if ((optopt = (int)*place++) == (int)':' ||

-	    !(oli = strchr(ostr, optopt))) {

-		/*

-		 * if the user didn't specify '-' as an option,

-		 * assume it means -1.

-		 */

-		if (optopt == (int)'-')

-			return (-1);

-		if (!*place)

-			++optind;

-		if (opterr && *ostr != ':')

-			(void)fprintf(stderr,

-			    "%s: illegal option -- %c\n", __progname(nargv[0]), optopt);

-		return (BADCH);

-	}

-	if (*++oli != ':') {			/* don't need argument */

-		optarg = NULL;

-		if (!*place)

-			++optind;

-	} else {				/* need an argument */

-		if (*place)			/* no white space */

-			optarg = place;

-		else if (nargc <= ++optind) {	/* no arg */

-			place = EMSG;

-			if ((opterr) && (*ostr != ':'))

-				(void)fprintf(stderr,

-				    "%s: option requires an argument -- %c\n",

-				    __progname(nargv[0]), optopt);

-			return (BADARG);

-		} else				/* white space */

-			optarg = nargv[optind];

-		place = EMSG;

-		++optind;

-	}

-	return (optopt);			/* dump back option letter */

-}

-

-#if 0

-/*

- * getopt --

- *	Parse argc/argv argument vector.

- */

-int

-getopt2(nargc, nargv, ostr)

-	int nargc;

-	char * const *nargv;

-	const char *ostr;

-{

-	int retval;

-

-	if ((retval = getopt_internal(nargc, nargv, ostr)) == -2) {

-		retval = -1;

-		++optind; 

-	}

-	return(retval);

-}

-#endif

-

-/*

- * getopt_long --

- *	Parse argc/argv argument vector.

- */

-int

-getopt_long(nargc, nargv, options, long_options, index)

-	int nargc;

-	char ** nargv;

-	char * options;

-	struct option * long_options;

-	int * index;

-{

-	int retval;

-

-	_DIAGASSERT(nargv != NULL);

-	_DIAGASSERT(options != NULL);

-	_DIAGASSERT(long_options != NULL);

-	/* index may be NULL */

-

-	if ((retval = getopt_internal(nargc, nargv, options)) == -2) {

-		char *current_argv = nargv[optind++] + 2, *has_equal;

-		int i, current_argv_len, match = -1;

-

-		if (*current_argv == '\0') {

-			return(-1);

-		}

-		if ((has_equal = strchr(current_argv, '=')) != NULL) {

-			current_argv_len = lws_ptr_diff(has_equal, current_argv);

-			has_equal++;

-		} else

-			current_argv_len = (int)strlen(current_argv);

-

-		for (i = 0; long_options[i].name; i++) { 

-			if (strncmp(current_argv, long_options[i].name, current_argv_len))

-				continue;

-

-			if (strlen(long_options[i].name) == (unsigned)current_argv_len) { 

-				match = i;

-				break;

-			}

-			if (match == -1)

-				match = i;

-		}

-		if (match != -1) {

-			if (long_options[match].has_arg == required_argument ||

-			    long_options[match].has_arg == optional_argument) {

-				if (has_equal)

-					optarg = has_equal;

-				else

-					optarg = nargv[optind++];

-			}

-			if ((long_options[match].has_arg == required_argument)

-			    && (optarg == NULL)) {

-				/*

-				 * Missing argument, leading :

-				 * indicates no error should be generated

-				 */

-				if ((opterr) && (*options != ':'))

-					(void)fprintf(stderr,

-				      "%s: option requires an argument -- %s\n",

-				      __progname(nargv[0]), current_argv);

-				return (BADARG);

-			}

-		} else { /* No matching argument */

-			if ((opterr) && (*options != ':'))

-				(void)fprintf(stderr,

-				    "%s: illegal option -- %s\n", __progname(nargv[0]), current_argv);

-			return (BADCH);

-		}

-		if (long_options[match].flag) {

-			*long_options[match].flag = long_options[match].val;

-			retval = 0;

-		} else 

-			retval = long_options[match].val;

-		if (index)

-			*index = match;

-	}

-	return(retval);

-}

+
+/*
+ * Copyright (c) 1987, 1993, 1994, 1996
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "getopt.h"
+
+#define lws_ptr_diff(head, tail) \
+			((int)((char *)(head) - (char *)(tail)))
+
+extern int	  opterr;	/* if error message should be printed */
+extern int	  optind;	/* index into parent argv vector */
+extern int	  optopt;	/* character checked for validity */
+extern int	  optreset;	/* reset getopt */
+extern char *optarg;	/* argument associated with option */
+
+#define __P(x) x
+#define _DIAGASSERT(x) assert(x)
+
+static char * __progname __P((char *));
+int getopt_internal __P((int, char * const *, const char *));
+
+static char *
+__progname(nargv0)
+	char * nargv0;
+{
+	char * tmp;
+
+	_DIAGASSERT(nargv0 != NULL);
+
+	tmp = strrchr(nargv0, '/');
+	if (tmp)
+		tmp++;
+	else
+		tmp = nargv0;
+	return(tmp);
+}
+
+#define	BADCH	(int)'?'
+#define	BADARG	(int)':'
+#define	EMSG	""
+
+/*
+ * getopt --
+ *	Parse argc/argv argument vector.
+ */
+int
+getopt_internal(nargc, nargv, ostr)
+	int nargc;
+	char * const *nargv;
+	const char *ostr;
+{
+	static char *place = EMSG;		/* option letter processing */
+	char *oli;				/* option letter list index */
+
+	_DIAGASSERT(nargv != NULL);
+	_DIAGASSERT(ostr != NULL);
+
+	if (optreset || !*place) {		/* update scanning pointer */
+		optreset = 0;
+		if (optind >= nargc || *(place = nargv[optind]) != '-') {
+			place = EMSG;
+			return (-1);
+		}
+		if (place[1] && *++place == '-') {	/* found "--" */
+			/* ++optind; */
+			place = EMSG;
+			return (-2);
+		}
+	}					/* option letter okay? */
+	if ((optopt = (int)*place++) == (int)':' ||
+	    !(oli = strchr(ostr, optopt))) {
+		/*
+		 * if the user didn't specify '-' as an option,
+		 * assume it means -1.
+		 */
+		if (optopt == (int)'-')
+			return (-1);
+		if (!*place)
+			++optind;
+		if (opterr && *ostr != ':')
+			(void)fprintf(stderr,
+			    "%s: illegal option -- %c\n", __progname(nargv[0]), optopt);
+		return (BADCH);
+	}
+	if (*++oli != ':') {			/* don't need argument */
+		optarg = NULL;
+		if (!*place)
+			++optind;
+	} else {				/* need an argument */
+		if (*place)			/* no white space */
+			optarg = place;
+		else if (nargc <= ++optind) {	/* no arg */
+			place = EMSG;
+			if ((opterr) && (*ostr != ':'))
+				(void)fprintf(stderr,
+				    "%s: option requires an argument -- %c\n",
+				    __progname(nargv[0]), optopt);
+			return (BADARG);
+		} else				/* white space */
+			optarg = nargv[optind];
+		place = EMSG;
+		++optind;
+	}
+	return (optopt);			/* dump back option letter */
+}
+
+#if 0
+/*
+ * getopt --
+ *	Parse argc/argv argument vector.
+ */
+int
+getopt2(nargc, nargv, ostr)
+	int nargc;
+	char * const *nargv;
+	const char *ostr;
+{
+	int retval;
+
+	if ((retval = getopt_internal(nargc, nargv, ostr)) == -2) {
+		retval = -1;
+		++optind; 
+	}
+	return(retval);
+}
+#endif
+
+/*
+ * getopt_long --
+ *	Parse argc/argv argument vector.
+ */
+int
+getopt_long(nargc, nargv, options, long_options, index)
+	int nargc;
+	char ** nargv;
+	char * options;
+	struct option * long_options;
+	int * index;
+{
+	int retval;
+
+	_DIAGASSERT(nargv != NULL);
+	_DIAGASSERT(options != NULL);
+	_DIAGASSERT(long_options != NULL);
+	/* index may be NULL */
+
+	if ((retval = getopt_internal(nargc, nargv, options)) == -2) {
+		char *current_argv = nargv[optind++] + 2, *has_equal;
+		int i, current_argv_len, match = -1;
+
+		if (*current_argv == '\0') {
+			return(-1);
+		}
+		if ((has_equal = strchr(current_argv, '=')) != NULL) {
+			current_argv_len = lws_ptr_diff(has_equal, current_argv);
+			has_equal++;
+		} else
+			current_argv_len = (int)strlen(current_argv);
+
+		for (i = 0; long_options[i].name; i++) { 
+			if (strncmp(current_argv, long_options[i].name, current_argv_len))
+				continue;
+
+			if (strlen(long_options[i].name) == (unsigned)current_argv_len) { 
+				match = i;
+				break;
+			}
+			if (match == -1)
+				match = i;
+		}
+		if (match != -1) {
+			if (long_options[match].has_arg == required_argument ||
+			    long_options[match].has_arg == optional_argument) {
+				if (has_equal)
+					optarg = has_equal;
+				else
+					optarg = nargv[optind++];
+			}
+			if ((long_options[match].has_arg == required_argument)
+			    && (optarg == NULL)) {
+				/*
+				 * Missing argument, leading :
+				 * indicates no error should be generated
+				 */
+				if ((opterr) && (*options != ':'))
+					(void)fprintf(stderr,
+				      "%s: option requires an argument -- %s\n",
+				      __progname(nargv[0]), current_argv);
+				return (BADARG);
+			}
+		} else { /* No matching argument */
+			if ((opterr) && (*options != ':'))
+				(void)fprintf(stderr,
+				    "%s: illegal option -- %s\n", __progname(nargv[0]), current_argv);
+			return (BADCH);
+		}
+		if (long_options[match].flag) {
+			*long_options[match].flag = long_options[match].val;
+			retval = 0;
+		} else 
+			retval = long_options[match].val;
+		if (index)
+			*index = match;
+	}
+	return(retval);
+}
diff --git a/thirdparty/libwebsockets/win32helpers/gettimeofday.c b/thirdparty/libwebsockets/win32helpers/gettimeofday.c
index 08385c2320..35dd73531d 100644
--- a/thirdparty/libwebsockets/win32helpers/gettimeofday.c
+++ b/thirdparty/libwebsockets/win32helpers/gettimeofday.c
@@ -1,36 +1,36 @@
-#include <time.h>

-#include <windows.h> //I've omitted context line

-

-#include "gettimeofday.h"

-

-int gettimeofday(struct timeval *tv, struct timezone *tz)

-{

-	FILETIME ft;

-	unsigned __int64 tmpres = 0;

-	static int tzflag;

-

-	if (NULL != tv) {

-		GetSystemTimeAsFileTime(&ft);

-

-		tmpres |= ft.dwHighDateTime;

-		tmpres <<= 32;

-		tmpres |= ft.dwLowDateTime;

-

-		/*converting file time to unix epoch*/

-		tmpres /= 10;  /*convert into microseconds*/

+#include <time.h>
+#include <windows.h> //I've omitted context line
+
+#include "gettimeofday.h"
+
+int gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+	FILETIME ft;
+	unsigned __int64 tmpres = 0;
+	static int tzflag;
+
+	if (NULL != tv) {
+		GetSystemTimeAsFileTime(&ft);
+
+		tmpres |= ft.dwHighDateTime;
+		tmpres <<= 32;
+		tmpres |= ft.dwLowDateTime;
+
+		/*converting file time to unix epoch*/
+		tmpres /= 10;  /*convert into microseconds*/
 		tmpres -= DELTA_EPOCH_IN_MICROSECS;
-		tv->tv_sec = (long)(tmpres / 1000000UL);

-		tv->tv_usec = (long)(tmpres % 1000000UL);

-	}

- 

-	if (NULL != tz) {

-		if (!tzflag) {

-			_tzset();

-			tzflag++;

-		}

-		tz->tz_minuteswest = _timezone / 60;

-		tz->tz_dsttime = _daylight;

-	}

-

-	return 0;

-}

+		tv->tv_sec = (long)(tmpres / 1000000UL);
+		tv->tv_usec = (long)(tmpres % 1000000UL);
+	}
+ 
+	if (NULL != tz) {
+		if (!tzflag) {
+			_tzset();
+			tzflag++;
+		}
+		tz->tz_minuteswest = _timezone / 60;
+		tz->tz_dsttime = _daylight;
+	}
+
+	return 0;
+}
diff --git a/thirdparty/misc/pcg.cpp b/thirdparty/misc/pcg.cpp
index eac3b36d36..c421e16f89 100644
--- a/thirdparty/misc/pcg.cpp
+++ b/thirdparty/misc/pcg.cpp
@@ -13,3 +13,13 @@ uint32_t pcg32_random_r(pcg32_random_t* rng)
     uint32_t rot = oldstate >> 59u;
     return (xorshifted >> rot) | (xorshifted << ((-rot) & 31));
 }
+
+// Source from http://www.pcg-random.org/downloads/pcg-c-basic-0.9.zip
+void pcg32_srandom_r(pcg32_random_t* rng, uint64_t initstate, uint64_t initseq)
+{
+    rng->state = 0U;
+    rng->inc = (initseq << 1u) | 1u;
+    pcg32_random_r(rng);
+    rng->state += initstate;
+    pcg32_random_r(rng);
+}
diff --git a/thirdparty/misc/pcg.h b/thirdparty/misc/pcg.h
index e2d66d51d5..6f42b3b094 100644
--- a/thirdparty/misc/pcg.h
+++ b/thirdparty/misc/pcg.h
@@ -10,5 +10,6 @@
 
 typedef struct { uint64_t state;  uint64_t inc; } pcg32_random_t;
 uint32_t pcg32_random_r(pcg32_random_t* rng);
+void pcg32_srandom_r(pcg32_random_t* rng, uint64_t initstate, uint64_t initseq);
 
 #endif // RANDOM_H
diff --git a/thirdparty/misc/yuv2rgb.h b/thirdparty/misc/yuv2rgb.h
index 3ec8388246..d8f7fd6de2 100644
--- a/thirdparty/misc/yuv2rgb.h
+++ b/thirdparty/misc/yuv2rgb.h
@@ -24,6 +24,14 @@ does not infringe any patents that apply in your area before you
 ship it.
 */
 
+/*
+ * Please note that this version has been modified for various reasons:
+ * 1. Using the Godot core typedefs
+ * 2. At some point or another the code relied on the byte order of a uint32_t, this has been fixed
+ * 3. Output has been reordered to struct { uint8_t r, g, b, a; } precisely in accordance with the function names
+ * 4. Removing unused 'dither' parameter
+ */
+
 #ifndef YUV2RGB_H
 #define YUV2RGB_H
 
@@ -803,6 +811,8 @@ static const uint32_t tables[256*3] = {
 	0xE6365800U
 };
 
+/* -- Common -- */
+
 #define FLAGS 0x40080100
 #define READUV(U,V) (tables[256 + (U)] + tables[512 + (V)])
 #define READY(Y)    tables[Y]
@@ -820,12 +830,14 @@ do {                             \
 
 #define STORE(Y,DSTPTR)         \
 do {                            \
-    *(DSTPTR)++ = (Y);          \
-    *(DSTPTR)++ = (Y)>>22;      \
     *(DSTPTR)++ = (Y)>>11;      \
-    *(DSTPTR)++ = 255;            \
+    *(DSTPTR)++ = (Y)>>22;       \
+    *(DSTPTR)++ = (Y);          \
+	*(DSTPTR)++ = 255;           \
 } while (0 == 1)
 
+/* -- End Common -- */
+
 static void yuv422_2_rgb8888(uint8_t  *dst_ptr,
 		const uint8_t  *y_ptr,
 		const uint8_t  *u_ptr,
@@ -834,8 +846,7 @@ static void yuv422_2_rgb8888(uint8_t  *dst_ptr,
 		      int32_t   height,
 		      int32_t   y_span,
 		      int32_t   uv_span,
-		      int32_t   dst_span,
-		      int32_t   dither)
+		      int32_t   dst_span)
 {
     height -= 1;
     while (height > 0)
@@ -909,35 +920,7 @@ static void yuv422_2_rgb8888(uint8_t  *dst_ptr,
     }
 }
 
-
-#undef FLAGS
-#undef READUV
-#undef READY
-#undef FIXUP
-#undef STORE
-
-
-#define FLAGS 0x40080100
-#define READUV(U,V) (tables[256 + (U)] + tables[512 + (V)])
-#define READY(Y)    tables[Y]
-#define FIXUP(Y)                 \
-do {                             \
-    int tmp = (Y) & FLAGS;       \
-    if (tmp != 0)                \
-    {                            \
-	tmp  -= tmp>>8;          \
-	(Y)  |= tmp;             \
-	tmp   = FLAGS & ~(Y>>1); \
-	(Y)  += tmp>>8;          \
-    }                            \
-} while (0 == 1)
-
-#define STORE(Y,DSTPTR)     \
-do {                        \
-    (DSTPTR) = 0xFF000000 | (Y & 0xFF) | (0xFF00 & (Y>>14)) | (0xFF0000 & (Y<<5));\
-} while (0 == 1)
-
-static void yuv420_2_rgb8888(uint8_t  *dst_ptr_,
+static void yuv420_2_rgb8888(uint8_t  *dst_ptr,
 		const uint8_t  *y_ptr,
 		const uint8_t  *u_ptr,
 		const uint8_t  *v_ptr,
@@ -945,12 +928,9 @@ static void yuv420_2_rgb8888(uint8_t  *dst_ptr_,
 		      int32_t   height,
 		      int32_t   y_span,
 		      int32_t   uv_span,
-		      int32_t   dst_span,
-		      int32_t   dither)
+		      int32_t   dst_span)
 {
-    uint32_t *dst_ptr = (uint32_t *)(void *)dst_ptr_;
-    dst_span >>= 2;
-
+    /* The 'dst_ptr as uint32_t' thing is not endianness-aware, so that's been removed. */
     height -= 1;
     while (height > 0)
     {
@@ -960,36 +940,38 @@ static void yuv420_2_rgb8888(uint8_t  *dst_ptr_,
 	{
 	    /* Do 2 column pairs */
 	    uint32_t uv, y0, y1;
+        uint8_t * dst_ptr_1span = dst_ptr + dst_span;
 
 	    uv  = READUV(*u_ptr++,*v_ptr++);
 	    y1  = uv + READY(y_ptr[y_span]);
 	    y0  = uv + READY(*y_ptr++);
 	    FIXUP(y1);
 	    FIXUP(y0);
-	    STORE(y1, dst_ptr[dst_span]);
-	    STORE(y0, *dst_ptr++);
+	    STORE(y1, dst_ptr_1span);
+	    STORE(y0, dst_ptr);
 	    y1  = uv + READY(y_ptr[y_span]);
 	    y0  = uv + READY(*y_ptr++);
 	    FIXUP(y1);
 	    FIXUP(y0);
-	    STORE(y1, dst_ptr[dst_span]);
-	    STORE(y0, *dst_ptr++);
+	    STORE(y1, dst_ptr_1span);
+	    STORE(y0, dst_ptr);
 	    height += (2<<16);
 	}
 	if ((height>>16) == 0)
 	{
 	    /* Trailing column pair */
 	    uint32_t uv, y0, y1;
+        uint8_t * dst_ptr_1span = dst_ptr + dst_span;
 
 	    uv = READUV(*u_ptr,*v_ptr);
 	    y1 = uv + READY(y_ptr[y_span]);
 	    y0 = uv + READY(*y_ptr++);
 	    FIXUP(y1);
 	    FIXUP(y0);
-	    STORE(y0, dst_ptr[dst_span]);
-	    STORE(y1, *dst_ptr++);
+	    STORE(y0, dst_ptr_1span);
+	    STORE(y1, dst_ptr);
 	}
-	dst_ptr += dst_span*2-width;
+	dst_ptr += (dst_span * 2) - (width * 4);
 	y_ptr   += y_span*2-width;
 	u_ptr   += uv_span-(width>>1);
 	v_ptr   += uv_span-(width>>1);
@@ -1011,8 +993,8 @@ static void yuv420_2_rgb8888(uint8_t  *dst_ptr_,
 	    y0  = uv + READY(*y_ptr++);
 	    FIXUP(y1);
 	    FIXUP(y0);
-	    STORE(y1, *dst_ptr++);
-	    STORE(y0, *dst_ptr++);
+	    STORE(y1, dst_ptr);
+	    STORE(y0, dst_ptr);
 	    height += (2<<16);
 	}
 	if ((height>>16) == 0)
@@ -1023,42 +1005,11 @@ static void yuv420_2_rgb8888(uint8_t  *dst_ptr_,
 	    uv = READUV(*u_ptr++,*v_ptr++);
 	    y0 = uv + READY(*y_ptr++);
 	    FIXUP(y0);
-	    STORE(y0, *dst_ptr++);
+	    STORE(y0, dst_ptr);
 	}
     }
 }
 
-
-
-#undef FLAGS
-#undef READUV
-#undef READY
-#undef FIXUP
-#undef STORE
-
-#define FLAGS 0x40080100
-#define READUV(U,V) (tables[256 + (U)] + tables[512 + (V)])
-#define READY(Y)    tables[Y]
-#define FIXUP(Y)                 \
-do {                             \
-    int tmp = (Y) & FLAGS;       \
-    if (tmp != 0)                \
-    {                            \
-	tmp  -= tmp>>8;          \
-	(Y)  |= tmp;             \
-	tmp   = FLAGS & ~(Y>>1); \
-	(Y)  += tmp>>8;          \
-    }                            \
-} while (0 == 1)
-
-#define STORE(Y,DSTPTR)         \
-do {                            \
-    *(DSTPTR)++ = (Y);          \
-    *(DSTPTR)++ = (Y)>>22;      \
-    *(DSTPTR)++ = (Y)>>11;      \
-	*(DSTPTR)++ = 255;           \
-} while (0 == 1)
-
 static void yuv444_2_rgb8888(uint8_t  *dst_ptr,
 		const uint8_t  *y_ptr,
 		const uint8_t  *u_ptr,
@@ -1067,8 +1018,7 @@ static void yuv444_2_rgb8888(uint8_t  *dst_ptr,
 		      int32_t   height,
 		      int32_t   y_span,
 		      int32_t   uv_span,
-		      int32_t   dst_span,
-		      int32_t   dither)
+		      int32_t   dst_span)
 {
     height -= 1;
     while (height > 0)
@@ -1143,4 +1093,11 @@ static void yuv444_2_rgb8888(uint8_t  *dst_ptr,
 	height -= 1;
     }
 }
+
+#undef FLAGS
+#undef READUV
+#undef READY
+#undef FIXUP
+#undef STORE
+
 #endif // YUV2RGB_H
diff --git a/thirdparty/thekla_atlas/godot-changes.patch b/thirdparty/thekla_atlas/godot-changes.patch
deleted file mode 100644
index 0e56403336..0000000000
--- a/thirdparty/thekla_atlas/godot-changes.patch
+++ /dev/null
@@ -1,154 +0,0 @@
-diff --git a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp b/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp
-index 5ce452c..11e635d 100644
---- a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp
-+++ b/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp
-@@ -142,9 +142,11 @@ AtlasPacker::AtlasPacker(Atlas * atlas) : m_atlas(atlas), m_bitmap(256, 256)
- {
-     m_width = 0;
-     m_height = 0;
--    
--    m_debug_bitmap.allocate(256, 256);
--    m_debug_bitmap.fill(Color32(0,0,0,0));
-+
-+    // -- GODOT start --
-+    //m_debug_bitmap.allocate(256, 256);
-+    //m_debug_bitmap.fill(Color32(0,0,0,0));
-+    // -- GODOT end --
- }
- 
- AtlasPacker::~AtlasPacker()
-@@ -465,7 +467,11 @@ void AtlasPacker::packCharts(int quality, float texelsPerUnit, bool blockAligned
-                     nvDebug("origin: %f %f\n", origin.x, origin.y);
-                     nvDebug("majorAxis: %f %f\n", majorAxis.x, majorAxis.y);
-                     nvDebug("minorAxis: %f %f\n", minorAxis.x, minorAxis.y);
--                    nvDebugBreak();
-+                    // -- GODOT start --
-+                    //nvDebugBreak();
-+                    m_atlas->setFailed();
-+                    return;
-+                    // -- GODOT end --
-                 }
-                 //nvCheck(tmp.x >= 0 && tmp.y >= 0);
- 
-@@ -597,8 +603,10 @@ void AtlasPacker::packCharts(int quality, float texelsPerUnit, bool blockAligned
-     m_bitmap.clearAll();
-     if (approximateExtent > m_bitmap.width()) {
-         m_bitmap.resize(approximateExtent, approximateExtent, false);
--        m_debug_bitmap.resize(approximateExtent, approximateExtent);
--        m_debug_bitmap.fill(Color32(0,0,0,0));
-+        // -- GODOT start --
-+        //m_debug_bitmap.resize(approximateExtent, approximateExtent);
-+        //m_debug_bitmap.fill(Color32(0,0,0,0));
-+        // -- GODOT end --
-     }
- 
-     
-@@ -680,20 +688,24 @@ void AtlasPacker::packCharts(int quality, float texelsPerUnit, bool blockAligned
-         {
-             //nvDebug("Resize bitmap (%d, %d).\n", nextPowerOfTwo(w), nextPowerOfTwo(h));
-             m_bitmap.resize(nextPowerOfTwo(U32(w)), nextPowerOfTwo(U32(h)), false);
--            m_debug_bitmap.resize(nextPowerOfTwo(U32(w)), nextPowerOfTwo(U32(h)));
-+            // -- GODOT start --
-+            //m_debug_bitmap.resize(nextPowerOfTwo(U32(w)), nextPowerOfTwo(U32(h)));
-+            // -- GODOT end --
-         }
- 
-         //nvDebug("Add chart at (%d, %d).\n", best_x, best_y);
- 
-         addChart(&chart_bitmap, w, h, best_x, best_y, best_r, /*debugOutput=*/NULL);
- 
-+        // -- GODOT start --
-         // IC: Output chart again to debug bitmap.
--        if (chart->isVertexMapped()) {
-+        /*if (chart->isVertexMapped()) {
-             addChart(&chart_bitmap, w, h, best_x, best_y, best_r, &m_debug_bitmap);
-         }
-         else {
-             addChart(chart, w, h, best_x, best_y, best_r, &m_debug_bitmap);
--        }
-+        }*/
-+        // -- GODOT end --
- 
-         //float best_angle = 2 * PI * best_r;
- 
-@@ -842,8 +854,10 @@ void AtlasPacker::packCharts(int quality, float texelsPerUnit, bool blockAligned
-     nvCheck(isAligned(m_width, 4));
-     nvCheck(isAligned(m_height, 4));
- 
--    m_debug_bitmap.resize(m_width, m_height);
--    m_debug_bitmap.setFormat(Image::Format_ARGB);
-+    // -- GODOT start --
-+    //m_debug_bitmap.resize(m_width, m_height);
-+    //m_debug_bitmap.setFormat(Image::Format_ARGB);
-+    // -- GODOT end --
- 
- #if DEBUG_OUTPUT
-     //outputDebugBitmap("debug_packer_final.tga", m_bitmap, w, h);
-diff --git a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h b/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h
-index 2d305f3..845dbfb 100644
---- a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h
-+++ b/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h
-@@ -48,7 +48,9 @@ namespace nv
- 
-         Atlas * m_atlas;
-         BitMap m_bitmap;
--        Image m_debug_bitmap;
-+        // -- GODOT start --
-+        //Image m_debug_bitmap;
-+        // -- GODOT end --
-         RadixSort m_radix;
- 
-         uint m_width;
-diff --git a/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp b/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp
-index d6f0acc..de1953d 100644
---- a/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp
-+++ b/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp
-@@ -2,6 +2,9 @@
- #include "thekla_atlas.h"
- 
- #include <cfloat>
-+// -- GODOT start --
-+#include <stdio.h>
-+// -- GODOT end --
- 
- #include "nvmesh/halfedge/Edge.h"
- #include "nvmesh/halfedge/Mesh.h"
-@@ -112,6 +115,8 @@ static Atlas_Output_Mesh * mesh_atlas_to_output(const HalfEdge::Mesh * mesh, con
-     output->index_count = face_count * 3;
-     output->index_array = new int[face_count * 3];
- 
-+    // -- GODOT start --
-+    int face_ofs = 0;
-     // Set face indices.
-     for (int f = 0; f < face_count; f++) {
-         uint c = charts->faceChartAt(f);
-@@ -121,14 +126,26 @@ static Atlas_Output_Mesh * mesh_atlas_to_output(const HalfEdge::Mesh * mesh, con
-         const Chart * chart = charts->chartAt(c);
-         nvDebugCheck(chart->faceAt(i) == f);
- 
-+        if (i >= chart->chartMesh()->faceCount()) {
-+            printf("WARNING: Faces may be missing in the final vertex, which could not be packed\n");
-+            continue;
-+        }
-+
-         const HalfEdge::Face * face = chart->chartMesh()->faceAt(i);
-         const HalfEdge::Edge * edge = face->edge;
- 
--        output->index_array[3*f+0] = vertexOffset + edge->vertex->id;
--        output->index_array[3*f+1] = vertexOffset + edge->next->vertex->id;
--        output->index_array[3*f+2] = vertexOffset + edge->next->next->vertex->id;
-+        //output->index_array[3*f+0] = vertexOffset + edge->vertex->id;
-+        //output->index_array[3*f+1] = vertexOffset + edge->next->vertex->id;
-+        //output->index_array[3*f+2] = vertexOffset + edge->next->next->vertex->id;
-+        output->index_array[3 * face_ofs + 0] = vertexOffset + edge->vertex->id;
-+        output->index_array[3 * face_ofs + 1] = vertexOffset + edge->next->vertex->id;
-+        output->index_array[3 * face_ofs + 2] = vertexOffset + edge->next->next->vertex->id;
-+        face_ofs++;
-     }
- 
-+    output->index_count = face_ofs * 3;
-+    // -- GODOT end --
-+
-     *error = Atlas_Error_Success;
-     output->atlas_width = w;
-     output->atlas_height = h;
diff --git a/thirdparty/thekla_atlas/nvconfig.h b/thirdparty/thekla_atlas/nvconfig.h
deleted file mode 100644
index 815bc3ec75..0000000000
--- a/thirdparty/thekla_atlas/nvconfig.h
+++ /dev/null
@@ -1,37 +0,0 @@
-#ifndef NV_CONFIG
-#define NV_CONFIG
-
-#if NV_OS_DARWIN
-
-// Hardcoded.
-
-#define NV_HAVE_UNISTD_H
-#define NV_HAVE_STDARG_H
-#define NV_HAVE_SIGNAL_H
-#define NV_HAVE_EXECINFO_H
-//#define NV_HAVE_MALLOC_H
-
-#else
-
-//#define HAVE_UNISTD_H
-#define NV_HAVE_STDARG_H
-//#define HAVE_SIGNAL_H
-//#define HAVE_EXECINFO_H
-//#define HAVE_MALLOC_H
-
-#endif
-
-//#define HAVE_OPENMP // Only in MSVC pro edition.
-
-//#cmakedefine HAVE_PNG
-//#cmakedefine HAVE_JPEG
-//#cmakedefine HAVE_TIFF
-//#cmakedefine HAVE_OPENEXR
-//#cmakedefine HAVE_FREEIMAGE
-#if !NV_OS_IOS
-#define NV_HAVE_STBIMAGE
-#endif
-
-//#cmakedefine HAVE_MAYA
-
-#endif // NV_CONFIG
diff --git a/thirdparty/thekla_atlas/nvcore/Array.h b/thirdparty/thekla_atlas/nvcore/Array.h
deleted file mode 100644
index b295cb2b0c..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Array.h
+++ /dev/null
@@ -1,182 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_ARRAY_H
-#define NV_CORE_ARRAY_H
-
-/*
-This array class requires the elements to be relocable; it uses memmove and realloc. Ideally I should be 
-using swap, but I honestly don't care. The only thing that you should be aware of is that internal pointers
-are not supported.
-
-Note also that push_back and resize does not support inserting arguments elements that are in the same 
-container. This is forbidden to prevent an extra copy.
-*/
-
-
-#include "Memory.h"
-#include "Debug.h"
-#include "ForEach.h" // PseudoIndex
-
-
-namespace nv 
-{
-    class Stream;
-
-    /**
-    * Replacement for std::vector that is easier to debug and provides
-    * some nice foreach enumerators. 
-    */
-    template<typename T>
-    class NVCORE_CLASS Array {
-    public:
-        typedef uint size_type;
-
-        // Default constructor.
-        NV_FORCEINLINE Array() : m_buffer(NULL), m_capacity(0), m_size(0) {}
-
-        // Copy constructor.
-        NV_FORCEINLINE Array(const Array & a) : m_buffer(NULL), m_capacity(0), m_size(0) {
-            copy(a.m_buffer, a.m_size);
-        }
-
-        // Constructor that initializes the vector with the given elements.
-        NV_FORCEINLINE Array(const T * ptr, uint num) : m_buffer(NULL), m_capacity(0), m_size(0) {
-            copy(ptr, num);
-        }
-
-        // Allocate array.
-        NV_FORCEINLINE explicit Array(uint capacity) : m_buffer(NULL), m_capacity(0), m_size(0) {
-            setArrayCapacity(capacity);
-        }
-
-        // Destructor.
-        NV_FORCEINLINE ~Array() {
-            clear();
-            free<T>(m_buffer);
-        }
-
-
-        /// Const element access.
-        NV_FORCEINLINE const T & operator[]( uint index ) const
-        {
-            nvDebugCheck(index < m_size);
-            return m_buffer[index];
-        }
-        NV_FORCEINLINE const T & at( uint index ) const
-        {
-            nvDebugCheck(index < m_size);
-            return m_buffer[index];
-        }
-
-        /// Element access.
-        NV_FORCEINLINE T & operator[] ( uint index )
-        {
-            nvDebugCheck(index < m_size);
-            return m_buffer[index];
-        }
-        NV_FORCEINLINE T & at( uint index )
-        {
-            nvDebugCheck(index < m_size);
-            return m_buffer[index];
-        }
-
-        /// Get vector size.
-        NV_FORCEINLINE uint size() const { return m_size; }
-
-        /// Get vector size.
-        NV_FORCEINLINE uint count() const { return m_size; }
-
-        /// Get vector capacity.
-        NV_FORCEINLINE uint capacity() const { return m_capacity; }
-
-        /// Get const vector pointer.
-        NV_FORCEINLINE const T * buffer() const { return m_buffer; }
-
-        /// Get vector pointer.
-        NV_FORCEINLINE T * buffer() { return m_buffer; }
-
-        /// Provide begin/end pointers for C++11 range-based for loops.
-        NV_FORCEINLINE T * begin() { return m_buffer; }
-        NV_FORCEINLINE T * end() { return m_buffer + m_size; }
-        NV_FORCEINLINE const T * begin() const { return m_buffer; }
-        NV_FORCEINLINE const T * end() const { return m_buffer + m_size; }
-
-        /// Is vector empty.
-        NV_FORCEINLINE bool isEmpty() const { return m_size == 0; }
-
-        /// Is a null vector.
-        NV_FORCEINLINE bool isNull() const { return m_buffer == NULL; }
-
-
-        T & append();
-        void push_back( const T & val );
-        void pushBack( const T & val );
-        Array<T> & append( const T & val );
-        Array<T> & operator<< ( T & t );
-        void pop_back();
-        void popBack(uint count = 1);
-        void popFront(uint count = 1);
-        const T & back() const;
-        T & back();
-        const T & front() const;
-        T & front();
-        bool contains(const T & e) const;
-        bool find(const T & element, uint * indexPtr) const;
-        bool find(const T & element, uint begin, uint end, uint * indexPtr) const;
-        void removeAt(uint index);
-        bool remove(const T & element);
-        void insertAt(uint index, const T & val = T());
-        void append(const Array<T> & other);
-        void append(const T other[], uint count);
-        void replaceWithLast(uint index);
-        void resize(uint new_size);
-        void resize(uint new_size, const T & elem);
-        void fill(const T & elem);
-        void clear();
-        void shrink();
-        void reserve(uint desired_size);
-        void copy(const T * data, uint count);
-        Array<T> & operator=( const Array<T> & a );
-        T * release();
-
-
-        // Array enumerator.
-        typedef uint PseudoIndex;
-
-        NV_FORCEINLINE PseudoIndex start() const { return 0; }
-        NV_FORCEINLINE bool isDone(const PseudoIndex & i) const { nvDebugCheck(i <= this->m_size); return i == this->m_size; }
-        NV_FORCEINLINE void advance(PseudoIndex & i) const { nvDebugCheck(i <= this->m_size); i++; }
-
-#if NV_NEED_PSEUDOINDEX_WRAPPER
-        NV_FORCEINLINE T & operator[]( const PseudoIndexWrapper & i ) {
-            return m_buffer[i(this)];
-        }
-        NV_FORCEINLINE const T & operator[]( const PseudoIndexWrapper & i ) const {
-            return m_buffer[i(this)];
-        }
-#endif
-
-        // Friends.
-        template <typename Typ> 
-        friend Stream & operator<< ( Stream & s, Array<Typ> & p );
-
-        template <typename Typ>
-        friend void swap(Array<Typ> & a, Array<Typ> & b);
-
-
-    protected:
-
-        void setArraySize(uint new_size);
-        void setArrayCapacity(uint new_capacity);
-
-        T * m_buffer;
-        uint m_capacity;
-        uint m_size;
-
-    };
-
-
-} // nv namespace
-
-#endif // NV_CORE_ARRAY_H
diff --git a/thirdparty/thekla_atlas/nvcore/Array.inl b/thirdparty/thekla_atlas/nvcore/Array.inl
deleted file mode 100644
index 0b4de28ba9..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Array.inl
+++ /dev/null
@@ -1,452 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_ARRAY_INL
-#define NV_CORE_ARRAY_INL
-
-#include "Array.h"
-
-#include "Stream.h"
-#include "Utils.h" // swap
-
-#include <string.h>	// memmove
-#include <new> // for placement new
-
-
-
-namespace nv 
-{
-    template <typename T>
-    NV_FORCEINLINE T & Array<T>::append()
-    {
-        uint old_size = m_size;
-        uint new_size = m_size + 1;
-
-        setArraySize(new_size);
-
-        construct_range(m_buffer, new_size, old_size);
-
-        return m_buffer[old_size]; // Return reference to last element.
-    }
-
-    // Push an element at the end of the vector.
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::push_back( const T & val )
-    {
-#if 1
-        nvDebugCheck(&val < m_buffer || &val >= m_buffer+m_size);
-
-        uint old_size = m_size;
-        uint new_size = m_size + 1;
-
-        setArraySize(new_size);
-
-        construct_range(m_buffer, new_size, old_size, val);
-#else
-        uint new_size = m_size + 1;
-
-        if (new_size > m_capacity)
-        {
-            // @@ Is there any way to avoid this copy?
-            // @@ Can we create a copy without side effects? Ie. without calls to constructor/destructor. Use alloca + memcpy?
-            // @@ Assert instead of copy?
-            const T copy(val);	// create a copy in case value is inside of this array.
-
-            setArraySize(new_size);
-
-            new (m_buffer+new_size-1) T(copy);
-        }
-        else
-        {
-            m_size = new_size;
-            new(m_buffer+new_size-1) T(val);
-        }
-#endif // 0/1
-    }
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::pushBack( const T & val )
-    {
-        push_back(val);
-    }
-    template <typename T>
-    NV_FORCEINLINE Array<T> & Array<T>::append( const T & val )
-    {
-        push_back(val);
-        return *this;
-    }
-
-    // Qt like push operator.
-    template <typename T>
-    NV_FORCEINLINE Array<T> & Array<T>::operator<< ( T & t )
-    {
-        push_back(t);
-        return *this;
-    }
-
-    // Pop the element at the end of the vector.
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::pop_back()
-    {
-        nvDebugCheck( m_size > 0 );
-        resize( m_size - 1 );
-    }
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::popBack(uint count)
-    {
-        nvDebugCheck(m_size >= count);
-        resize(m_size - count);
-    }
-
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::popFront(uint count)
-    {
-        nvDebugCheck(m_size >= count);
-        //resize(m_size - count);
-
-        if (m_size == count) {
-            clear();
-        }
-        else {
-            destroy_range(m_buffer, 0, count);
-
-            memmove(m_buffer, m_buffer + count, sizeof(T) * (m_size - count));
-
-            m_size -= count;
-        }
-
-    }
-
-
-    // Get back element.
-    template <typename T>
-    NV_FORCEINLINE const T & Array<T>::back() const
-    {
-        nvDebugCheck( m_size > 0 );
-        return m_buffer[m_size-1];
-    }
-
-    // Get back element.
-    template <typename T>
-    NV_FORCEINLINE T & Array<T>::back()
-    {
-        nvDebugCheck( m_size > 0 );
-        return m_buffer[m_size-1];
-    }
-
-    // Get front element.
-    template <typename T>
-    NV_FORCEINLINE const T & Array<T>::front() const
-    {
-        nvDebugCheck( m_size > 0 );
-        return m_buffer[0];
-    }
-
-    // Get front element.
-    template <typename T>
-    NV_FORCEINLINE T & Array<T>::front()
-    {
-        nvDebugCheck( m_size > 0 );
-        return m_buffer[0];
-    }
-
-    // Check if the given element is contained in the array.
-    template <typename T>
-    NV_FORCEINLINE bool Array<T>::contains(const T & e) const
-    {
-        return find(e, NULL);
-    }
-
-    // Return true if element found.
-    template <typename T>
-    NV_FORCEINLINE bool Array<T>::find(const T & element, uint * indexPtr) const
-    {
-        return find(element, 0, m_size, indexPtr);
-    }
-
-    // Return true if element found within the given range.
-    template <typename T>
-    NV_FORCEINLINE bool Array<T>::find(const T & element, uint begin, uint end, uint * indexPtr) const
-    {
-        return ::nv::find(element, m_buffer, begin, end, indexPtr);
-    }
-
-
-    // Remove the element at the given index. This is an expensive operation!
-    template <typename T>
-    void Array<T>::removeAt(uint index)
-    {
-        nvDebugCheck(index >= 0 && index < m_size);
-
-        if (m_size == 1) {
-            clear();
-        }
-        else {
-            m_buffer[index].~T();
-
-            memmove(m_buffer+index, m_buffer+index+1, sizeof(T) * (m_size - 1 - index));
-            m_size--;
-        }
-    }
-
-    // Remove the first instance of the given element.
-    template <typename T>
-    bool Array<T>::remove(const T & element)
-    {
-        uint index;
-        if (find(element, &index)) {
-            removeAt(index);
-            return true;
-        }
-        return false;
-    }
-
-    // Insert the given element at the given index shifting all the elements up.
-    template <typename T>
-    void Array<T>::insertAt(uint index, const T & val/*=T()*/)
-    {
-        nvDebugCheck( index >= 0 && index <= m_size );
-
-        setArraySize(m_size + 1);
-
-        if (index < m_size - 1) {
-            memmove(m_buffer+index+1, m_buffer+index, sizeof(T) * (m_size - 1 - index));
-        }
-
-        // Copy-construct into the newly opened slot.
-        new(m_buffer+index) T(val);
-    }
-
-    // Append the given data to our vector.
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::append(const Array<T> & other)
-    {
-        append(other.m_buffer, other.m_size);
-    }
-
-    // Append the given data to our vector.
-    template <typename T>
-    void Array<T>::append(const T other[], uint count)
-    {
-        if (count > 0) {
-            const uint old_size = m_size;
-
-            setArraySize(m_size + count);
-
-            for (uint i = 0; i < count; i++ ) {
-                new(m_buffer + old_size + i) T(other[i]);
-            }
-        }
-    }
-
-
-    // Remove the given element by replacing it with the last one.
-    template <typename T> 
-    void Array<T>::replaceWithLast(uint index)
-    {
-        nvDebugCheck( index < m_size );
-        nv::swap(m_buffer[index], back());      // @@ Is this OK when index == size-1?
-        (m_buffer+m_size-1)->~T();
-        m_size--;
-    }
-
-    // Resize the vector preserving existing elements.
-    template <typename T> 
-    void Array<T>::resize(uint new_size)
-    {
-        uint old_size = m_size;
-
-        // Destruct old elements (if we're shrinking).
-        destroy_range(m_buffer, new_size, old_size);
-
-        setArraySize(new_size);
-
-        // Call default constructors
-        construct_range(m_buffer, new_size, old_size);
-    }
-
-
-    // Resize the vector preserving existing elements and initializing the
-    // new ones with the given value.
-    template <typename T> 
-    void Array<T>::resize(uint new_size, const T & elem)
-    {
-        nvDebugCheck(&elem < m_buffer || &elem > m_buffer+m_size);
-
-        uint old_size = m_size;
-
-        // Destruct old elements (if we're shrinking).
-        destroy_range(m_buffer, new_size, old_size);
-
-        setArraySize(new_size);
-
-        // Call copy constructors
-        construct_range(m_buffer, new_size, old_size, elem);
-    }
-
-    // Fill array with the given value.
-    template <typename T>
-    void Array<T>::fill(const T & elem)
-    {
-        fill(m_buffer, m_size, elem);
-    }
-
-    // Clear the buffer.
-    template <typename T> 
-    NV_FORCEINLINE void Array<T>::clear()
-    {
-        nvDebugCheck(isValidPtr(m_buffer));
-
-        // Destruct old elements
-        destroy_range(m_buffer, 0, m_size);
-
-        m_size = 0;
-    }
-
-    // Shrink the allocated vector.
-    template <typename T> 
-    NV_FORCEINLINE void Array<T>::shrink()
-    {
-        if (m_size < m_capacity) {
-            setArrayCapacity(m_size);
-        }
-    }
-
-    // Preallocate space.
-    template <typename T> 
-    NV_FORCEINLINE void Array<T>::reserve(uint desired_size)
-    {
-        if (desired_size > m_capacity) {
-            setArrayCapacity(desired_size);
-        }
-    }
-
-    // Copy elements to this array. Resizes it if needed.
-    template <typename T>
-    NV_FORCEINLINE void Array<T>::copy(const T * data, uint count)
-    {
-#if 1   // More simple, but maybe not be as efficient?
-        destroy_range(m_buffer, 0, m_size);
-
-        setArraySize(count);
-
-        construct_range(m_buffer, count, 0, data);
-#else
-        const uint old_size = m_size;
-
-        destroy_range(m_buffer, count, old_size);
-
-        setArraySize(count);
-
-        copy_range(m_buffer, data, old_size);
-
-        construct_range(m_buffer, count, old_size, data);
-#endif
-    }
-
-    // Assignment operator.
-    template <typename T>
-    NV_FORCEINLINE Array<T> & Array<T>::operator=( const Array<T> & a )
-    {
-        copy(a.m_buffer, a.m_size);
-        return *this;
-    }
-
-    // Release ownership of allocated memory and returns pointer to it.
-    template <typename T>
-    T * Array<T>::release() {
-        T * tmp = m_buffer;
-        m_buffer = NULL;
-        m_capacity = 0;
-        m_size = 0;
-        return tmp;
-    }
-
-
-
-    // Change array size.
-    template <typename T> 
-    inline void Array<T>::setArraySize(uint new_size) {
-        m_size = new_size;
-
-        if (new_size > m_capacity) {
-            uint new_buffer_size;
-            if (m_capacity == 0) {
-                // first allocation is exact
-                new_buffer_size = new_size;
-            }
-            else {
-                // following allocations grow array by 25%
-                new_buffer_size = new_size + (new_size >> 2);
-            }
-
-            setArrayCapacity( new_buffer_size );
-        }
-    }
-
-    // Change array capacity.
-    template <typename T> 
-    inline void Array<T>::setArrayCapacity(uint new_capacity) {
-        nvDebugCheck(new_capacity >= m_size);
-
-        if (new_capacity == 0) {
-            // free the buffer.
-            if (m_buffer != NULL) {
-                free<T>(m_buffer);
-                m_buffer = NULL;
-            }
-        }
-        else {
-            // realloc the buffer
-            m_buffer = realloc<T>(m_buffer, new_capacity);
-        }
-
-        m_capacity = new_capacity;
-    }
-
-    // Array serialization.
-    template <typename Typ> 
-    inline Stream & operator<< ( Stream & s, Array<Typ> & p )
-    {
-        if (s.isLoading()) {
-            uint size;
-            s << size;
-            p.resize( size );
-        }
-        else {
-            s << p.m_size;
-        }
-
-        for (uint i = 0; i < p.m_size; i++) {
-            s << p.m_buffer[i];
-        }
-
-        return s;
-    }
-
-    // Swap the members of the two given vectors.
-    template <typename Typ>
-    inline void swap(Array<Typ> & a, Array<Typ> & b)
-    {
-        nv::swap(a.m_buffer, b.m_buffer);
-        nv::swap(a.m_capacity, b.m_capacity);
-        nv::swap(a.m_size, b.m_size);
-    }
-
-
-} // nv namespace
-
-// IC: These functions are for compatibility with the Foreach macro in The Witness.
-template <typename T> inline int item_count(const nv::Array<T> & array) { return array.count(); }
-template <typename T> inline const T & item_at(const nv::Array<T> & array, int i) { return array.at(i); }
-template <typename T> inline T & item_at(nv::Array<T> & array, int i) { return array.at(i); }
-template <typename T> inline int item_advance(const nv::Array<T> & array, int i) { return ++i; }
-template <typename T> inline int item_remove(nv::Array<T> & array, int i) { array.replaceWithLast(i); return i - 1; }
-
-template <typename T> inline int item_count(const nv::Array<T> * array) { return array->count(); }
-template <typename T> inline const T & item_at(const nv::Array<T> * array, int i) { return array->at(i); }
-template <typename T> inline T & item_at(nv::Array<T> * array, int i) { return array->at(i); }
-template <typename T> inline int item_advance(const nv::Array<T> * array, int i) { return ++i; }
-template <typename T> inline int item_remove(nv::Array<T> * array, int i) { array->replaceWithLast(i); return i - 1; }
-
-
-#endif // NV_CORE_ARRAY_INL
diff --git a/thirdparty/thekla_atlas/nvcore/BitArray.h b/thirdparty/thekla_atlas/nvcore/BitArray.h
deleted file mode 100644
index 23cf880694..0000000000
--- a/thirdparty/thekla_atlas/nvcore/BitArray.h
+++ /dev/null
@@ -1,250 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_BITARRAY_H
-#define NV_CORE_BITARRAY_H
-
-#include "nvcore.h"
-#include "Array.inl"
-
-namespace nv
-{
-
-    // @@ Uh, this could be much faster.
-    inline uint countSetBits(uint32 x) {
-        uint count = 0;
-        for(; x != 0; x >>= 1) {
-            count += (x & 1);
-        }
-        return count;
-    }
-
-    // @@ This is even more lame. What was I thinking?
-    inline uint countSetBits(uint32 x, int bits) {
-        uint count = 0;
-        for(; x != 0 && bits != 0; x >>= 1, bits--) {
-            count += (x & 1);
-        }
-        return count;
-    }
-
-    // See "Conditionally set or clear bits without branching" at http://graphics.stanford.edu/~seander/bithacks.html
-    inline uint setBits(uint w, uint m, bool b) {
-        return (w & ~m) | (-int(b) & m);
-    }
-
-
-
-    // Simple bit array.
-    class BitArray
-    {
-    public:
-
-        BitArray() {}
-        BitArray(uint sz) {
-            resize(sz);
-        }
-
-        uint size() const { return m_size; }
-        void clear() { resize(0); }
-
-        void resize(uint new_size)
-        {
-            m_size = new_size;
-            m_wordArray.resize( (m_size + 31) >> 5 );
-        }
-
-        void resize(uint new_size, bool init)
-        {
-            //if (new_size == m_size) return;
-
-            uint old_size = m_size;
-            uint size_mod_32 = old_size & 31;
-            uint last_word_index = ((old_size + 31) >> 5) - 1;
-            uint mask = (1 << size_mod_32) - 1;
-
-            uint init_dword;
-            if (init) {
-                if (size_mod_32) m_wordArray[last_word_index] |= ~mask;
-                init_dword = ~0;
-            }
-            else {
-                if (size_mod_32) m_wordArray[last_word_index] &= mask;
-                init_dword = 0;
-            }
-
-            m_size = new_size;
-            m_wordArray.resize((new_size + 31) >> 5, init_dword);
-
-            // Make sure new bits are initialized correctly.
-            /*for (uint i = old_size; i < new_size; i++) {
-                nvCheck(bitAt(i) == init);
-            }*/
-        }
-
-
-        /// Get bit.
-        bool bitAt(uint b) const
-        {
-            nvDebugCheck( b < m_size );
-            return (m_wordArray[b >> 5] & (1 << (b & 31))) != 0;
-        }
-
-        // It may be useful to pack mulitple bit arrays together interleaving their bits.
-        uint bitsAt(uint idx, uint count) const
-        {
-            //nvDebugCheck(count == 2 || count == 4 || count == 8 || count == 16 || count == 32);
-            nvDebugCheck(count == 2);   // @@ Hardcoded for two.
-            uint b = idx * count;
-            nvDebugCheck(b < m_size);
-            return (m_wordArray[b >> 5] & (0x3 << (b & 31))) >> (b & 31);
-        }
-
-        // It would be useful to have a function to set two bits simultaneously.
-        /*void setBitsAt(uint idx, uint count, uint bits) const
-        {
-            //nvDebugCheck(count == 2 || count == 4 || count == 8 || count == 16 || count == 32);
-            nvDebugCheck(count == 2);   // @@ Hardcoded for two.
-            uint b = idx * count;
-            nvDebugCheck(b < m_size);
-            return (m_wordArray[b >> 5] & (0x3 << (b & 31))) >> (b & 31);
-        }*/
-
-
-
-        // Set a bit.
-        void setBitAt(uint idx)
-        {
-            nvDebugCheck(idx < m_size);
-            m_wordArray[idx >> 5] |=  (1 << (idx & 31));
-        }
-
-        // Clear a bit.
-        void clearBitAt(uint idx)
-        {
-            nvDebugCheck(idx < m_size);
-            m_wordArray[idx >> 5] &= ~(1 << (idx & 31));
-        }
-
-        // Toggle a bit.
-        void toggleBitAt(uint idx)
-        {
-            nvDebugCheck(idx < m_size);
-            m_wordArray[idx >> 5] ^= (1 << (idx & 31));
-        }
-
-        // Set a bit to the given value. @@ Rename modifyBitAt? 
-        void setBitAt(uint idx, bool b)
-        {
-            nvDebugCheck(idx < m_size);
-            m_wordArray[idx >> 5] = setBits(m_wordArray[idx >> 5], 1 << (idx & 31), b);
-            nvDebugCheck(bitAt(idx) == b);
-        }
-
-        void append(bool value)
-        {
-            resize(m_size + 1);
-            setBitAt(m_size - 1, value);
-        }
-
-
-        // Clear all the bits.
-        void clearAll()
-        {
-            memset(m_wordArray.buffer(), 0, m_wordArray.size() * sizeof(uint));
-        }
-
-        // Set all the bits.
-        void setAll()
-        {
-            memset(m_wordArray.buffer(), 0xFF, m_wordArray.size() * sizeof(uint));
-        }
-
-        // Toggle all the bits.
-        void toggleAll()
-        {
-            const uint wordCount = m_wordArray.count();
-            for(uint b = 0; b < wordCount; b++) {
-                m_wordArray[b] ^= 0xFFFFFFFF;
-            }
-        }
-
-        // Count the number of bits set.
-        uint countSetBits() const
-        {
-            const uint num = m_wordArray.size();
-            if( num == 0 ) {
-                return 0;
-            }
-
-            uint count = 0;				
-            for(uint i = 0; i < num - 1; i++) {
-                count += nv::countSetBits(m_wordArray[i]);
-            }
-            count += nv::countSetBits(m_wordArray[num - 1], m_size & 31);
-
-            //piDebugCheck(count + countClearBits() == m_size);
-            return count;
-        }
-
-        // Count the number of bits clear.
-        uint countClearBits() const {
-
-            const uint num = m_wordArray.size();
-            if( num == 0 ) {
-                return 0;
-            }
-
-            uint count = 0;
-            for(uint i = 0; i < num - 1; i++) {
-                count += nv::countSetBits(~m_wordArray[i]);
-            }
-            count += nv::countSetBits(~m_wordArray[num - 1], m_size & 31);
-
-            //piDebugCheck(count + countSetBits() == m_size);
-            return count;
-        }
-
-        friend void swap(BitArray & a, BitArray & b)
-        {
-            swap(a.m_size, b.m_size);
-            swap(a.m_wordArray, b.m_wordArray);
-        }
-
-        void operator &= (const BitArray & other) {
-            if (other.m_size != m_size) {
-                resize(other.m_size);
-            }
-
-            const uint wordCount = m_wordArray.count();
-            for (uint i = 0; i < wordCount; i++) {
-                m_wordArray[i] &= other.m_wordArray[i];
-            }
-        }
-
-        void operator |= (const BitArray & other) {
-            if (other.m_size != m_size) {
-                resize(other.m_size);
-            }
-
-            const uint wordCount = m_wordArray.count();
-            for (uint i = 0; i < wordCount; i++) {
-                m_wordArray[i] |= other.m_wordArray[i];
-            }
-        }
-
-
-    private:
-
-        // Number of bits stored.
-        uint m_size;
-
-        // Array of bits.
-        Array<uint> m_wordArray;
-
-    };
-
-} // nv namespace
-
-#endif // NV_CORE_BITARRAY_H
-
diff --git a/thirdparty/thekla_atlas/nvcore/Debug.cpp b/thirdparty/thekla_atlas/nvcore/Debug.cpp
deleted file mode 100644
index 4980ffa916..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Debug.cpp
+++ /dev/null
@@ -1,1357 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "Debug.h"
-#include "Array.inl"
-#include "StrLib.h" // StringBuilder
-
-#include "StdStream.h" // fileOpen
-
-#include <stdlib.h>
-
-// Extern
-#if NV_OS_WIN32 //&& NV_CC_MSVC
-#   define WIN32_LEAN_AND_MEAN
-#   define VC_EXTRALEAN
-#   include <windows.h>
-#   include <direct.h>
-// -- GODOT start -
-#   include <crtdbg.h>
-#   if _MSC_VER < 1300
-#       define DECLSPEC_DEPRECATED
-// VC6: change this path to your Platform SDK headers
-#       include <dbghelp.h> // must be XP version of file
-//      include "M:\\dev7\\vs\\devtools\\common\\win32sdk\\include\\dbghelp.h"
-#   else
-// VC7: ships with updated headers
-#       include <dbghelp.h>
-#   endif
-// -- GODOT end -
-#   pragma comment(lib,"dbghelp.lib")
-#endif
-
-#if NV_OS_XBOX
-#    include <Xtl.h>
-#    ifdef _DEBUG
-#        include <xbdm.h>
-#    endif //_DEBUG
-#endif //NV_OS_XBOX
-
-#if !NV_OS_WIN32 && defined(NV_HAVE_SIGNAL_H)
-#   include <signal.h>
-#endif
-
-#if NV_OS_UNIX
-#   include <unistd.h> // getpid
-#endif
-
-#if NV_OS_LINUX && defined(NV_HAVE_EXECINFO_H)
-#   include <execinfo.h> // backtrace
-#   if NV_CC_GNUC // defined(NV_HAVE_CXXABI_H)
-#       include <cxxabi.h>
-#   endif
-#endif
-
-#if NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD
-#   include <sys/types.h>
-#   include <sys/param.h>
-#   include <sys/sysctl.h> // sysctl
-#   if !defined(NV_OS_OPENBSD)
-#       include <sys/ucontext.h>
-#   endif
-#   if defined(NV_HAVE_EXECINFO_H) // only after OSX 10.5
-#       include <execinfo.h> // backtrace
-#       if NV_CC_GNUC // defined(NV_HAVE_CXXABI_H)
-#           include <cxxabi.h>
-#       endif
-#   endif
-#endif
-
-#if NV_OS_ORBIS
-#include <libdbg.h>
-#endif
-
-#if NV_OS_DURANGO
-#include "Windows.h"
-#include <winnt.h>
-#include <crtdbg.h>
-#include <dbghelp.h>
-#include <errhandlingapi.h>
-#define NV_USE_SEPARATE_THREAD 0
-#else
-#define NV_USE_SEPARATE_THREAD 1
-#endif
-
-
-
-using namespace nv;
-
-namespace 
-{
-
-    static MessageHandler * s_message_handler = NULL;
-    static AssertHandler * s_assert_handler = NULL;
-
-    static bool s_sig_handler_enabled = false;
-    static bool s_interactive = true;
-
-#if (NV_OS_WIN32 && NV_CC_MSVC) || NV_OS_DURANGO
-
-    // Old exception filter.
-    static LPTOP_LEVEL_EXCEPTION_FILTER s_old_exception_filter = NULL;
-
-#elif !NV_OS_WIN32 && defined(NV_HAVE_SIGNAL_H)
-
-    // Old signal handlers.
-    struct sigaction s_old_sigsegv;
-    struct sigaction s_old_sigtrap;
-    struct sigaction s_old_sigfpe;
-    struct sigaction s_old_sigbus;
-
-#endif
-
-// -- GODOT start -
-#if NV_OS_WIN32 || NV_OS_DURANGO
-// -- GODOT end -
-
-    // We should try to simplify the top level filter as much as possible.
-    // http://www.nynaeve.net/?p=128
-
-    // The critical section enforcing the requirement that only one exception be
-    // handled by a handler at a time.
-    static CRITICAL_SECTION s_handler_critical_section;
-
-#if NV_USE_SEPARATE_THREAD
-    // Semaphores used to move exception handling between the exception thread
-    // and the handler thread.  handler_start_semaphore_ is signalled by the
-    // exception thread to wake up the handler thread when an exception occurs.
-    // handler_finish_semaphore_ is signalled by the handler thread to wake up
-    // the exception thread when handling is complete.
-    static HANDLE s_handler_start_semaphore = NULL;
-    static HANDLE s_handler_finish_semaphore = NULL;
-
-    // The exception handler thread.
-    static HANDLE s_handler_thread = NULL;
-
-    static DWORD s_requesting_thread_id = 0;
-    static EXCEPTION_POINTERS * s_exception_info = NULL;
-
-#endif // NV_USE_SEPARATE_THREAD
-
-
-    struct MinidumpCallbackContext {
-        ULONG64 memory_base;
-        ULONG memory_size;
-        bool finished;
-    };
-
-#if NV_OS_WIN32
-    // static
-    static BOOL CALLBACK miniDumpWriteDumpCallback(PVOID context, const PMINIDUMP_CALLBACK_INPUT callback_input, PMINIDUMP_CALLBACK_OUTPUT callback_output)
-    {
-        switch (callback_input->CallbackType)
-        {
-        case MemoryCallback: {
-            MinidumpCallbackContext* callback_context = reinterpret_cast<MinidumpCallbackContext*>(context);
-            if (callback_context->finished)
-                return FALSE;
-
-            // Include the specified memory region.
-            callback_output->MemoryBase = callback_context->memory_base;
-            callback_output->MemorySize = callback_context->memory_size;
-            callback_context->finished = true;
-            return TRUE;
-        }
-
-        // Include all modules.
-        case IncludeModuleCallback:
-        case ModuleCallback:
-            return TRUE;
-
-        // Include all threads.
-        case IncludeThreadCallback:
-        case ThreadCallback:
-            return TRUE;
-
-        // Stop receiving cancel callbacks.
-        case CancelCallback:
-            callback_output->CheckCancel = FALSE;
-            callback_output->Cancel = FALSE;
-            return TRUE;
-        }
-
-        // Ignore other callback types.
-        return FALSE;
-    }
-#endif
-
-    static bool writeMiniDump(EXCEPTION_POINTERS * pExceptionInfo)
-    {
-#if NV_OS_DURANGO
-        // Get a handle to the minidump method.
-        typedef BOOL(WINAPI* MiniDumpWriteDumpPfn) (
-            _In_ HANDLE hProcess,
-            _In_ DWORD ProcessId,
-            _In_ HANDLE hFile,
-            _In_ MINIDUMP_TYPE DumpType,
-            _In_opt_ PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam,
-            _In_opt_ PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam,
-            _Reserved_ PVOID CallbackParam
-            );
-        MiniDumpWriteDumpPfn MiniDumpWriteDump = NULL;
-        HMODULE hToolHelpModule = ::LoadLibraryW(L"toolhelpx.dll");
-        if (hToolHelpModule != INVALID_HANDLE_VALUE) {
-            MiniDumpWriteDump = reinterpret_cast<MiniDumpWriteDumpPfn>(::GetProcAddress(hToolHelpModule, "MiniDumpWriteDump"));
-            if (!MiniDumpWriteDump) {
-                FreeLibrary(hToolHelpModule);
-                return false;
-            }
-        }
-        else
-            return false;
-
-        // Generate a decent filename.
-        nv::Path application_path(256);
-        HINSTANCE hinstance = GetModuleHandle(NULL);
-        GetModuleFileName(hinstance, application_path.str(), 256);
-        application_path.stripExtension();
-        const char * application_name = application_path.fileName();
-
-        SYSTEMTIME local_time;
-        GetLocalTime(&local_time);
-
-        char dump_filename[MAX_PATH] = {};
-        sprintf_s(dump_filename, "d:\\%s-%04d%02d%02d-%02d%02d%02d.dmp",
-            application_name,
-            local_time.wYear, local_time.wMonth, local_time.wDay,
-            local_time.wHour, local_time.wMinute, local_time.wSecond );
-#else
-        const char* dump_filename = "crash.dmp";
-#endif
-
-        // create the file
-        HANDLE hFile = CreateFileA(dump_filename, GENERIC_READ | GENERIC_WRITE,
-            FILE_SHARE_WRITE | FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
-        if (hFile == INVALID_HANDLE_VALUE) {
-            //nvDebug("*** Failed to create dump file.\n");
-#if NV_OS_DURANGO
-            FreeLibrary(hToolHelpModule);
-#endif
-            return false;
-        }
-
-        MINIDUMP_EXCEPTION_INFORMATION * pExInfo = NULL;
-#if NV_OS_WIN32
-        MINIDUMP_CALLBACK_INFORMATION * pCallback = NULL;
-#else
-        void * pCallback = NULL;
-#endif
-
-        MINIDUMP_EXCEPTION_INFORMATION ExInfo;
-        if (pExceptionInfo != NULL) {
-            ExInfo.ThreadId = ::GetCurrentThreadId();
-            ExInfo.ExceptionPointers = pExceptionInfo;
-            ExInfo.ClientPointers = NULL;
-            pExInfo = &ExInfo;
-
-#if NV_OS_WIN32
-            MINIDUMP_CALLBACK_INFORMATION callback;
-            MinidumpCallbackContext context;
-
-            // Find a memory region of 256 bytes centered on the
-            // faulting instruction pointer.
-            const ULONG64 instruction_pointer = 
-            #if defined(_M_IX86)
-                pExceptionInfo->ContextRecord->Eip;
-            #elif defined(_M_AMD64)
-                pExceptionInfo->ContextRecord->Rip;
-            #else
-                #error Unsupported platform
-            #endif
-
-            MEMORY_BASIC_INFORMATION info;
-            
-            if (VirtualQuery(reinterpret_cast<LPCVOID>(instruction_pointer), &info, sizeof(MEMORY_BASIC_INFORMATION)) != 0 && info.State == MEM_COMMIT)
-            {
-                // Attempt to get 128 bytes before and after the instruction
-                // pointer, but settle for whatever's available up to the
-                // boundaries of the memory region.
-                const ULONG64 kIPMemorySize = 256;
-                context.memory_base = max(reinterpret_cast<ULONG64>(info.BaseAddress), instruction_pointer - (kIPMemorySize / 2));
-                ULONG64 end_of_range = min(instruction_pointer + (kIPMemorySize / 2), reinterpret_cast<ULONG64>(info.BaseAddress) + info.RegionSize);
-                context.memory_size = static_cast<ULONG>(end_of_range - context.memory_base);
-                context.finished = false;
-
-                callback.CallbackRoutine = miniDumpWriteDumpCallback;
-                callback.CallbackParam = reinterpret_cast<void*>(&context);
-                pCallback = &callback;
-            }
-#endif
-        }
-
-        MINIDUMP_TYPE miniDumpType = (MINIDUMP_TYPE)(MiniDumpNormal|MiniDumpWithHandleData|MiniDumpWithThreadInfo);
-
-        // write the dump
-        BOOL ok = MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile, miniDumpType, pExInfo, NULL, pCallback) != 0;
-        CloseHandle(hFile);
-#if NV_OS_DURANGO
-        FreeLibrary(hToolHelpModule);
-#endif
-
-        if (ok == FALSE) {
-            //nvDebug("*** Failed to save dump file.\n");
-            return false;
-        }
-
-        //nvDebug("\nDump file saved.\n");
-
-        return true;
-    }
-
-#if NV_USE_SEPARATE_THREAD
-
-    static DWORD WINAPI ExceptionHandlerThreadMain(void* lpParameter) {
-        nvDebugCheck(s_handler_start_semaphore != NULL);
-        nvDebugCheck(s_handler_finish_semaphore != NULL);
-
-        while (true) {
-            if (WaitForSingleObject(s_handler_start_semaphore, INFINITE) == WAIT_OBJECT_0) {
-                writeMiniDump(s_exception_info);
-
-                // Allow the requesting thread to proceed.
-                ReleaseSemaphore(s_handler_finish_semaphore, 1, NULL);
-            }
-        }
-
-        // This statement is not reached when the thread is unconditionally
-        // terminated by the ExceptionHandler destructor.
-        return 0;
-    }
-
-#endif // NV_USE_SEPARATE_THREAD
-
-    static bool hasStackTrace() {
-        return true;
-    }
-
-    /*static NV_NOINLINE int backtrace(void * trace[], int maxcount) {
-
-        // In Windows XP and Windows Server 2003, the sum of the FramesToSkip and FramesToCapture parameters must be less than 63.
-        int xp_maxcount = min(63-1, maxcount);
-
-        int count = RtlCaptureStackBackTrace(1, xp_maxcount, trace, NULL);
-        nvDebugCheck(count <= maxcount);
-
-        return count;
-    }*/
-
-#if NV_OS_WIN32
-    static NV_NOINLINE int backtraceWithSymbols(CONTEXT * ctx, void * trace[], int maxcount, int skip = 0) {
-        
-        // Init the stack frame for this function
-        STACKFRAME64 stackFrame = { 0 };
-
-    #if NV_CPU_X86_64
-        DWORD dwMachineType = IMAGE_FILE_MACHINE_AMD64;
-        stackFrame.AddrPC.Offset = ctx->Rip;
-        stackFrame.AddrFrame.Offset = ctx->Rbp;
-        stackFrame.AddrStack.Offset = ctx->Rsp;
-    #elif NV_CPU_X86
-        DWORD dwMachineType = IMAGE_FILE_MACHINE_I386;
-        stackFrame.AddrPC.Offset = ctx->Eip;
-        stackFrame.AddrFrame.Offset = ctx->Ebp;
-        stackFrame.AddrStack.Offset = ctx->Esp;
-    #else
-        #error "Platform not supported!"
-    #endif
-        stackFrame.AddrPC.Mode = AddrModeFlat;
-        stackFrame.AddrFrame.Mode = AddrModeFlat;
-        stackFrame.AddrStack.Mode = AddrModeFlat;
-
-        // Walk up the stack
-        const HANDLE hThread = GetCurrentThread();
-        const HANDLE hProcess = GetCurrentProcess();
-        int i;
-        for (i = 0; i < maxcount; i++)
-        {
-            // walking once first makes us skip self
-            if (!StackWalk64(dwMachineType, hProcess, hThread, &stackFrame, ctx, NULL, &SymFunctionTableAccess64, &SymGetModuleBase64, NULL)) {
-                break;
-            }
-
-            /*if (stackFrame.AddrPC.Offset == stackFrame.AddrReturn.Offset || stackFrame.AddrPC.Offset == 0) {
-                break;
-            }*/
-
-            if (i >= skip) {
-                trace[i - skip] = (PVOID)stackFrame.AddrPC.Offset;
-            }
-        }
-
-        return i - skip;
-    }
-
-#pragma warning(push)
-#pragma warning(disable:4748)
-    static NV_NOINLINE int backtrace(void * trace[], int maxcount) {
-        CONTEXT ctx = { 0 };
-// -- GODOT start --
-#if NV_CPU_X86 && !NV_CPU_X86_64
-        ctx.ContextFlags = CONTEXT_CONTROL;
-#if NV_CC_MSVC
-        _asm {
-             call x
-          x: pop eax
-             mov ctx.Eip, eax
-             mov ctx.Ebp, ebp
-             mov ctx.Esp, esp
-        }
-#else
-        register long unsigned int ebp asm("ebp");
-        ctx.Eip = (DWORD) __builtin_return_address(0);
-        ctx.Ebp = ebp;
-        ctx.Esp = (DWORD) __builtin_frame_address(0);
-#endif
-// -- GODOT end --
-#else
-        RtlCaptureContext(&ctx); // Not implemented correctly in x86.
-#endif
-
-        return backtraceWithSymbols(&ctx, trace, maxcount, 1);
-    }
-#pragma warning(pop)
-
-    static NV_NOINLINE void writeStackTrace(void * trace[], int size, int start, Array<const char *> & lines)
-    {
-        StringBuilder builder(512);
-
-        HANDLE hProcess = GetCurrentProcess();
-        
-        // Resolve PC to function names
-        for (int i = start; i < size; i++)
-        {
-            // Check for end of stack walk
-            DWORD64 ip = (DWORD64)trace[i];
-            if (ip == NULL)
-                break;
-
-            // Get function name
-            #define MAX_STRING_LEN  (512)
-            unsigned char byBuffer[sizeof(IMAGEHLP_SYMBOL64) + MAX_STRING_LEN] = { 0 };
-            IMAGEHLP_SYMBOL64 * pSymbol = (IMAGEHLP_SYMBOL64*)byBuffer;
-            pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
-            pSymbol->MaxNameLength = MAX_STRING_LEN;
-
-            DWORD64 dwDisplacement;
-            
-            if (SymGetSymFromAddr64(hProcess, ip, &dwDisplacement, pSymbol))
-            {
-                pSymbol->Name[MAX_STRING_LEN-1] = 0;
-                
-                /*
-                // Make the symbol readable for humans
-                UnDecorateSymbolName( pSym->Name, lpszNonUnicodeUnDSymbol, BUFFERSIZE, 
-                    UNDNAME_COMPLETE | 
-                    UNDNAME_NO_THISTYPE |
-                    UNDNAME_NO_SPECIAL_SYMS |
-                    UNDNAME_NO_MEMBER_TYPE |
-                    UNDNAME_NO_MS_KEYWORDS |
-                    UNDNAME_NO_ACCESS_SPECIFIERS );
-                */
-                
-                // pSymbol->Name
-                const char * pFunc = pSymbol->Name;
-
-                // Get file/line number
-                IMAGEHLP_LINE64 theLine = { 0 };
-                theLine.SizeOfStruct = sizeof(theLine);
-
-                DWORD dwDisplacement;
-                if (!SymGetLineFromAddr64(hProcess, ip, &dwDisplacement, &theLine))
-                {
-                    // Do not print unknown symbols anymore.
-                    //break;
-                    builder.format("unknown(%08X) : %s\n", (uint32)ip, pFunc);
-                }
-                else
-                {
-                    /*
-                    const char* pFile = strrchr(theLine.FileName, '\\');
-                    if ( pFile == NULL ) pFile = theLine.FileName;
-                    else pFile++;
-                    */
-                    const char * pFile = theLine.FileName;
-                    
-                    int line = theLine.LineNumber;
-                    
-                    builder.format("%s(%d) : %s\n", pFile, line, pFunc);
-                }
-
-                lines.append(builder.release());
-
-                if (pFunc != NULL && strcmp(pFunc, "WinMain") == 0) {
-                    break;
-                }
-            }
-        }
-    }
-#endif
-
-    // Write mini dump and print stack trace.
-    static LONG WINAPI handleException(EXCEPTION_POINTERS * pExceptionInfo)
-    {
-        EnterCriticalSection(&s_handler_critical_section);
-#if NV_USE_SEPARATE_THREAD
-        s_requesting_thread_id = GetCurrentThreadId();
-        s_exception_info = pExceptionInfo;
-
-        // This causes the handler thread to call writeMiniDump.
-        ReleaseSemaphore(s_handler_start_semaphore, 1, NULL);
-
-        // Wait until WriteMinidumpWithException is done and collect its return value.
-        WaitForSingleObject(s_handler_finish_semaphore, INFINITE);
-        //bool status = s_handler_return_value;
-
-        // Clean up.
-        s_requesting_thread_id = 0;
-        s_exception_info = NULL;
-#else
-        // First of all, write mini dump.
-        writeMiniDump(pExceptionInfo);
-#endif
-        LeaveCriticalSection(&s_handler_critical_section);
-
-        nvDebug("\nDump file saved.\n");
-
-        // Try to attach to debugger.
-        if (s_interactive && debug::attachToDebugger()) {
-            nvDebugBreak();
-            return EXCEPTION_CONTINUE_EXECUTION;
-        }
-
-#if NV_OS_WIN32
-        // If that fails, then try to pretty print a stack trace and terminate.
-        void * trace[64];
-        
-        int size = backtraceWithSymbols(pExceptionInfo->ContextRecord, trace, 64);
-
-        // @@ Use win32's CreateFile?
-        FILE * fp = fileOpen("crash.txt", "wb");
-        if (fp != NULL) {
-            Array<const char *> lines;
-            writeStackTrace(trace, size, 0, lines);
-
-            for (uint i = 0; i < lines.count(); i++) {
-                fputs(lines[i], fp);
-                delete lines[i];
-            }
-
-            // @@ Add more info to crash.txt?
-
-            fclose(fp);
-        }
-#endif
-
-        // This should terminate the process and set the error exit code.
-        TerminateProcess(GetCurrentProcess(), EXIT_FAILURE + 2);
-
-        return EXCEPTION_EXECUTE_HANDLER;   // Terminate app. In case terminate process did not succeed.
-    }
-
-    static void handlePureVirtualCall() {
-        nvDebugBreak();
-        TerminateProcess(GetCurrentProcess(), EXIT_FAILURE + 8);
-    }
-
-    static void handleInvalidParameter(const wchar_t * wexpresion, const wchar_t * wfunction, const wchar_t * wfile, unsigned int line, uintptr_t reserved) {
-
-        size_t convertedCharCount = 0;
-        
-        StringBuilder expresion;
-        if (wexpresion != NULL) {
-            uint size = U32(wcslen(wexpresion) + 1);
-            expresion.reserve(size);
-            wcstombs_s(&convertedCharCount, expresion.str(), size, wexpresion, _TRUNCATE);
-        }
-
-        StringBuilder file;
-        if (wfile != NULL) {
-            uint size = U32(wcslen(wfile) + 1);
-            file.reserve(size);
-            wcstombs_s(&convertedCharCount, file.str(), size, wfile, _TRUNCATE);
-        }
-
-        StringBuilder function;
-        if (wfunction != NULL) {
-            uint size = U32(wcslen(wfunction) + 1);
-            function.reserve(size);
-            wcstombs_s(&convertedCharCount, function.str(), size, wfunction, _TRUNCATE);
-        }
-        
-        int result = nvAbort(expresion.str(), file.str(), line, function.str());
-        if (result == NV_ABORT_DEBUG) {
-            nvDebugBreak();
-        } 
-    }
-
-#elif !NV_OS_WIN32 && defined(NV_HAVE_SIGNAL_H) // NV_OS_LINUX || NV_OS_DARWIN
-
-#if defined(NV_HAVE_EXECINFO_H)
-
-    static bool hasStackTrace() {
-        return true;
-    }
-
-
-    static void writeStackTrace(void * trace[], int size, int start, Array<const char *> & lines) {
-        StringBuilder builder(512);
-        char ** string_array = backtrace_symbols(trace, size);
-
-        for(int i = start; i < size-1; i++ ) {
-            // IC: Just in case.
-            if (string_array[i] == NULL || string_array[i][0] == '\0') break;
-
-#       if NV_CC_GNUC // defined(NV_HAVE_CXXABI_H)
-            // @@ Write a better parser for the possible formats.
-            char * begin = strchr(string_array[i], '(');
-            char * end = strrchr(string_array[i], '+');
-            char * module = string_array[i];
-
-            if (begin == 0 && end != 0) {
-                *(end - 1) = '\0';
-                begin = strrchr(string_array[i], ' ');
-                module = NULL; // Ignore module.
-            }
-
-            if (begin != 0 && begin < end) {
-                int stat;
-                *end = '\0';
-                *begin = '\0';
-                char * name = abi::__cxa_demangle(begin+1, 0, 0, &stat);
-                if (module == NULL) {
-                    if (name == NULL || stat != 0) {
-                        builder.format("  In: '%s'\n", begin+1);
-                    }
-                    else {
-                        builder.format("  In: '%s'\n", name);
-                    }
-                }
-                else {
-                    if (name == NULL || stat != 0) {
-                        builder.format("  In: [%s] '%s'\n", module, begin+1);
-                    }
-                    else {
-                        builder.format("  In: [%s] '%s'\n", module, name);
-                    }
-                }
-                free(name);
-            }
-            else {
-                builder.format("  In: '%s'\n", string_array[i]);
-            }
-#       else
-            builder.format("  In: '%s'\n", string_array[i]);
-#       endif
-            lines.append(builder.release());
-        }
-
-        free(string_array);
-    }
-
-    static void printStackTrace(void * trace[], int size, int start=0) {
-        nvDebug( "\nDumping stacktrace:\n" );
-
-        Array<const char *> lines;
-        writeStackTrace(trace, size, 1, lines);
-
-        for (uint i = 0; i < lines.count(); i++) {
-            nvDebug("%s", lines[i]);
-            delete lines[i];
-        }
-
-        nvDebug("\n");
-    }
-
-#endif // defined(NV_HAVE_EXECINFO_H)
-
-    static void * callerAddress(void * secret)
-    {
-#if NV_OS_DARWIN
-#  if defined(_STRUCT_MCONTEXT)
-#    if NV_CPU_PPC
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext->__ss.__srr0;
-#    elif NV_CPU_X86_64
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext->__ss.__rip;
-#    elif NV_CPU_X86
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext->__ss.__eip;
-#    elif NV_CPU_ARM
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext->__ss.__pc;
-#    else
-#      error "Unknown CPU"
-#    endif
-#  else
-#    if NV_CPU_PPC
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext->ss.srr0;
-#    elif NV_CPU_X86
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext->ss.eip;
-#    else
-#      error "Unknown CPU"
-#    endif
-#  endif
-#elif NV_OS_FREEBSD
-#  if NV_CPU_X86_64
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *)ucp->uc_mcontext.mc_rip;
-#  elif NV_CPU_X86
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *)ucp->uc_mcontext.mc_eip;
-#    else
-#      error "Unknown CPU"
-#    endif
-#elif NV_OS_OPENBSD
-#  if NV_CPU_X86_64
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *)ucp->sc_rip;
-#  elif NV_CPU_X86
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *)ucp->sc_eip;
-#  else
-#       error "Unknown CPU"
-#  endif        
-#else
-#  if NV_CPU_X86_64
-        // #define REG_RIP REG_INDEX(rip) // seems to be 16
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *)ucp->uc_mcontext.gregs[REG_RIP];
-#  elif NV_CPU_X86
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *)ucp->uc_mcontext.gregs[14/*REG_EIP*/];
-#  elif NV_CPU_PPC
-        ucontext_t * ucp = (ucontext_t *)secret;
-        return (void *) ucp->uc_mcontext.regs->nip;
-#    else
-#      error "Unknown CPU"
-#    endif
-#endif
-
-        // How to obtain the instruction pointers in different platforms, from mlton's source code.
-        // http://mlton.org/
-        // OpenBSD && NetBSD
-        // ucp->sc_eip
-        // FreeBSD:
-        // ucp->uc_mcontext.mc_eip
-        // HPUX:
-        // ucp->uc_link
-        // Solaris:
-        // ucp->uc_mcontext.gregs[REG_PC]
-        // Linux hppa:
-        // uc->uc_mcontext.sc_iaoq[0] & ~0x3UL
-        // Linux sparc:
-        // ((struct sigcontext*) secret)->sigc_regs.tpc
-        // Linux sparc64:
-        // ((struct sigcontext*) secret)->si_regs.pc
-
-        // potentially correct for other archs:
-        // Linux alpha: ucp->m_context.sc_pc
-        // Linux arm: ucp->m_context.ctx.arm_pc
-        // Linux ia64: ucp->m_context.sc_ip & ~0x3UL
-        // Linux mips: ucp->m_context.sc_pc
-        // Linux s390: ucp->m_context.sregs->regs.psw.addr
-    }
-
-    static void nvSigHandler(int sig, siginfo_t *info, void *secret)
-    {
-        void * pnt = callerAddress(secret);
-
-        // Do something useful with siginfo_t
-        if (sig == SIGSEGV) {
-            if (pnt != NULL) nvDebug("Got signal %d, faulty address is %p, from %p\n", sig, info->si_addr, pnt);
-            else nvDebug("Got signal %d, faulty address is %p\n", sig, info->si_addr);
-        }
-        else if(sig == SIGTRAP) {
-            nvDebug("Breakpoint hit.\n");
-        }
-        else {
-            nvDebug("Got signal %d\n", sig);
-        }
-
-#if defined(NV_HAVE_EXECINFO_H)
-        if (hasStackTrace()) // in case of weak linking
-        {
-            void * trace[64];
-            int size = backtrace(trace, 64);
-
-            if (pnt != NULL) {
-                // Overwrite sigaction with caller's address.
-                trace[1] = pnt;
-            }
-
-            printStackTrace(trace, size, 1);
-        }
-#endif // defined(NV_HAVE_EXECINFO_H)
-
-        exit(0);
-    }
-
-#endif // defined(NV_HAVE_SIGNAL_H)
-
-
-
-#if NV_OS_WIN32 //&& NV_CC_MSVC
-
-    /** Win32 assert handler. */
-    struct Win32AssertHandler : public AssertHandler 
-    {
-        // Flush the message queue. This is necessary for the message box to show up.
-        static void flushMessageQueue()
-        {
-            MSG msg;
-            while( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) ) {
-                //if( msg.message == WM_QUIT ) break;
-                TranslateMessage( &msg );
-                DispatchMessage( &msg );
-            }
-        }
-
-        // Assert handler method.
-        virtual int assertion(const char * exp, const char * file, int line, const char * func, const char * msg, va_list arg)
-        {
-            int ret = NV_ABORT_EXIT;
-
-            StringBuilder error_string;
-            error_string.format("*** Assertion failed: %s\n    On file: %s\n    On line: %d\n", exp, file, line );
-            if (func != NULL) {
-                error_string.appendFormat("    On function: %s\n", func);
-            }
-            if (msg != NULL) {
-                error_string.append("    Message: ");
-                va_list tmp;
-                va_copy(tmp, arg);
-                error_string.appendFormatList(msg, tmp);
-                va_end(tmp);
-                error_string.append("\n");
-            }
-            nvDebug( error_string.str() );
-
-            // Print stack trace:
-            debug::dumpInfo();
-
-            if (debug::isDebuggerPresent()) {
-                return NV_ABORT_DEBUG;
-            }
-
-            if (s_interactive) {
-                flushMessageQueue();
-                int action = MessageBoxA(NULL, error_string.str(), "Assertion failed", MB_ABORTRETRYIGNORE | MB_ICONERROR | MB_TOPMOST);
-                switch( action ) {
-                case IDRETRY:
-                    ret = NV_ABORT_DEBUG;
-                    break;
-                case IDIGNORE:
-                    ret = NV_ABORT_IGNORE;
-                    break;
-                case IDABORT:
-                default:
-                    ret = NV_ABORT_EXIT;
-                    break;
-                }
-                /*if( _CrtDbgReport( _CRT_ASSERT, file, line, module, exp ) == 1 ) {
-                    return NV_ABORT_DEBUG;
-                }*/
-            }
-
-            if (ret == NV_ABORT_EXIT) {
-                // Exit cleanly.
-                exit(EXIT_FAILURE + 1);
-            }
-
-            return ret;
-        }
-    };
-#elif NV_OS_XBOX
-
-    /** Xbox360 assert handler. */
-    struct Xbox360AssertHandler : public AssertHandler 
-    {
-        // Assert handler method.
-        virtual int assertion(const char * exp, const char * file, int line, const char * func, const char * msg, va_list arg)
-        {
-            int ret = NV_ABORT_EXIT;
-
-            StringBuilder error_string;
-            if( func != NULL ) {
-                error_string.format( "*** Assertion failed: %s\n    On file: %s\n    On function: %s\n    On line: %d\n ", exp, file, func, line );
-                nvDebug( error_string.str() );
-            }
-            else {
-                error_string.format( "*** Assertion failed: %s\n    On file: %s\n    On line: %d\n ", exp, file, line );
-                nvDebug( error_string.str() );
-            }
-
-            if (debug::isDebuggerPresent()) {
-                return NV_ABORT_DEBUG;
-            }
-
-            if( ret == NV_ABORT_EXIT ) {
-                 // Exit cleanly.
-                exit(EXIT_FAILURE + 1);
-            }
-
-            return ret;
-        }
-    };
-#elif NV_OS_ORBIS || NV_OS_DURANGO
-
-    /** Console assert handler. */
-    struct ConsoleAssertHandler : public AssertHandler
-    {
-        // Assert handler method.
-        virtual int assertion(const char * exp, const char * file, int line, const char * func, const char * msg, va_list arg)
-        {
-            if( func != NULL ) {
-                nvDebug( "*** Assertion failed: %s\n    On file: %s\n    On function: %s\n    On line: %d\n ", exp, file, func, line );
-            }
-            else {
-                nvDebug( "*** Assertion failed: %s\n    On file: %s\n    On line: %d\n ", exp, file, line );
-            }
-
-            //SBtodoORBIS print stack trace
-            /*if (hasStackTrace())
-            {
-                void * trace[64];
-                int size = backtrace(trace, 64);
-                printStackTrace(trace, size, 2);
-            }*/
-            
-            if (debug::isDebuggerPresent())
-                return NV_ABORT_DEBUG;
-
-            return NV_ABORT_IGNORE;
-        }
-    };
-
-#else
-
-    /** Unix assert handler. */
-    struct UnixAssertHandler : public AssertHandler
-    {
-        // Assert handler method.
-        virtual int assertion(const char * exp, const char * file, int line, const char * func, const char * msg, va_list arg)
-        {
-            int ret = NV_ABORT_EXIT;            
-            
-            if( func != NULL ) {
-                nvDebug( "*** Assertion failed: %s\n    On file: %s\n    On function: %s\n    On line: %d\n ", exp, file, func, line );
-            }
-            else {
-                nvDebug( "*** Assertion failed: %s\n    On file: %s\n    On line: %d\n ", exp, file, line );
-            }
-
-#if _DEBUG
-            if (debug::isDebuggerPresent()) {
-                return NV_ABORT_DEBUG;
-            }
-#endif
-
-#if defined(NV_HAVE_EXECINFO_H)
-            if (hasStackTrace())
-            {
-                void * trace[64];
-                int size = backtrace(trace, 64);
-                printStackTrace(trace, size, 2);
-            }
-#endif
-
-            if( ret == NV_ABORT_EXIT ) {
-                // Exit cleanly.
-                exit(EXIT_FAILURE + 1);
-            }
-            
-            return ret;
-        }
-    };
-
-#endif
-
-} // namespace
-
-
-/// Handle assertion through the assert handler.
-int nvAbort(const char * exp, const char * file, int line, const char * func/*=NULL*/, const char * msg/*= NULL*/, ...)
-{
-#if NV_OS_WIN32 //&& NV_CC_MSVC
-    static Win32AssertHandler s_default_assert_handler;
-#elif NV_OS_XBOX
-    static Xbox360AssertHandler s_default_assert_handler;
-#elif NV_OS_ORBIS || NV_OS_DURANGO
-    static ConsoleAssertHandler s_default_assert_handler;
-#else
-    static UnixAssertHandler s_default_assert_handler;
-#endif
-
-    va_list arg;
-    va_start(arg,msg);
-
-    AssertHandler * handler = s_assert_handler != NULL ? s_assert_handler : &s_default_assert_handler;
-    int result = handler->assertion(exp, file, line, func, msg, arg);
-
-    va_end(arg);
-
-    return result;
-}
-
-// Abnormal termination. Create mini dump and output call stack.
-void debug::terminate(int code)
-{
-#if NV_OS_WIN32 || NV_OS_DURANGO
-    EnterCriticalSection(&s_handler_critical_section);
-
-    writeMiniDump(NULL);
-
-#if NV_OS_WIN32
-    const int max_stack_size = 64;
-    void * trace[max_stack_size];
-    int size = backtrace(trace, max_stack_size);
-
-    // @@ Use win32's CreateFile?
-    FILE * fp = fileOpen("crash.txt", "wb");
-    if (fp != NULL) {
-        Array<const char *> lines;
-        writeStackTrace(trace, size, 0, lines);
-
-        for (uint i = 0; i < lines.count(); i++) {
-            fputs(lines[i], fp);
-            delete lines[i];
-        }
-
-        // @@ Add more info to crash.txt?
-
-        fclose(fp);
-    }
-#endif
-
-    LeaveCriticalSection(&s_handler_critical_section);
-#endif
-
-    exit(code);
-}
-
-
-/// Shows a message through the message handler.
-void NV_CDECL nvDebugPrint(const char *msg, ...)
-{
-    va_list arg;
-    va_start(arg,msg);
-    if (s_message_handler != NULL) {
-        s_message_handler->log( msg, arg );
-    }
-    else {
-        vprintf(msg, arg);
-    }
-    va_end(arg);
-}
-
-
-/// Dump debug info.
-void debug::dumpInfo()
-{
-#if (NV_OS_WIN32 && NV_CC_MSVC) || (defined(NV_HAVE_SIGNAL_H) && defined(NV_HAVE_EXECINFO_H))
-    if (hasStackTrace())
-    {
-        void * trace[64];
-        int size = backtrace(trace, 64);
-
-        nvDebug( "\nDumping stacktrace:\n" );
-
-        Array<const char *> lines;
-        writeStackTrace(trace, size, 1, lines);
-
-        for (uint i = 0; i < lines.count(); i++) {
-            nvDebug("%s", lines[i]);
-            delete lines[i];
-        }
-    }
-#endif
-}
-
-/// Dump callstack using the specified handler.
-void debug::dumpCallstack(MessageHandler *messageHandler, int callstackLevelsToSkip /*= 0*/)
-{
-#if (NV_OS_WIN32 && NV_CC_MSVC) || (defined(NV_HAVE_SIGNAL_H) && defined(NV_HAVE_EXECINFO_H))
-    if (hasStackTrace())
-    {
-        void * trace[64];
-        int size = backtrace(trace, 64);
-
-        Array<const char *> lines;
-        writeStackTrace(trace, size, callstackLevelsToSkip + 1, lines);     // + 1 to skip the call to dumpCallstack
-
-        for (uint i = 0; i < lines.count(); i++) {
-            messageHandler->log(lines[i], NULL);
-            delete lines[i];
-        }
-    }
-#endif
-}
-
-
-/// Set the debug message handler.
-void debug::setMessageHandler(MessageHandler * message_handler)
-{
-    s_message_handler = message_handler;
-}
-
-/// Reset the debug message handler.
-void debug::resetMessageHandler()
-{
-    s_message_handler = NULL;
-}
-
-/// Set the assert handler.
-void debug::setAssertHandler(AssertHandler * assert_handler)
-{
-    s_assert_handler = assert_handler;
-}
-
-/// Reset the assert handler.
-void debug::resetAssertHandler()
-{
-    s_assert_handler = NULL;
-}
-
-#if NV_OS_WIN32 || NV_OS_DURANGO
-#if NV_USE_SEPARATE_THREAD
-
-static void initHandlerThread()
-{
-    static const int kExceptionHandlerThreadInitialStackSize = 64 * 1024;
-
-    // Set synchronization primitives and the handler thread.  Each
-    // ExceptionHandler object gets its own handler thread because that's the
-    // only way to reliably guarantee sufficient stack space in an exception,
-    // and it allows an easy way to get a snapshot of the requesting thread's
-    // context outside of an exception.
-    InitializeCriticalSection(&s_handler_critical_section);
-    
-    s_handler_start_semaphore = CreateSemaphoreExW(NULL, 0, 1, NULL, 0,
-        SEMAPHORE_MODIFY_STATE | DELETE | SYNCHRONIZE);
-    nvDebugCheck(s_handler_start_semaphore != NULL);
-
-    s_handler_finish_semaphore = CreateSemaphoreExW(NULL, 0, 1, NULL, 0,
-        SEMAPHORE_MODIFY_STATE | DELETE | SYNCHRONIZE);
-    nvDebugCheck(s_handler_finish_semaphore != NULL);
-
-    // Don't attempt to create the thread if we could not create the semaphores.
-    if (s_handler_finish_semaphore != NULL && s_handler_start_semaphore != NULL) {
-        DWORD thread_id;
-        s_handler_thread = CreateThread(NULL,         // lpThreadAttributes
-                                        kExceptionHandlerThreadInitialStackSize,
-                                        ExceptionHandlerThreadMain,
-                                        NULL,         // lpParameter
-                                        0,            // dwCreationFlags
-                                        &thread_id);
-        nvDebugCheck(s_handler_thread != NULL);
-    }
-
-    /* @@ We should avoid loading modules in the exception handler!
-    dbghelp_module_ = LoadLibrary(L"dbghelp.dll");
-    if (dbghelp_module_) {
-        minidump_write_dump_ = reinterpret_cast<MiniDumpWriteDump_type>(GetProcAddress(dbghelp_module_, "MiniDumpWriteDump"));
-    }
-    */
-}
-
-static void shutHandlerThread() {
-    // @@ Free stuff. Terminate thread.
-}
-
-#endif // NV_USE_SEPARATE_THREAD
-#endif // NV_OS_WIN32
-
-
-// Enable signal handler.
-void debug::enableSigHandler(bool interactive)
-{
-    if (s_sig_handler_enabled) return;
-
-    s_sig_handler_enabled = true;
-    s_interactive = interactive;
-
-#if (NV_OS_WIN32 && NV_CC_MSVC) || NV_OS_DURANGO
-    if (interactive) {
-#if NV_OS_WIN32
-        // Do not display message boxes on error.
-        // http://msdn.microsoft.com/en-us/library/windows/desktop/ms680621(v=vs.85).aspx
-        SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOGPFAULTERRORBOX|SEM_NOOPENFILEERRORBOX);
-#endif
-
-        // CRT reports errors to debug output only.
-        // http://msdn.microsoft.com/en-us/library/1y71x448(v=vs.80).aspx
-        _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_DEBUG);
-        _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG);
-        _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
-    }
-
-
-#if NV_USE_SEPARATE_THREAD
-    initHandlerThread();
-#else
-    InitializeCriticalSection(&s_handler_critical_section);
-#endif
-
-    s_old_exception_filter = ::SetUnhandledExceptionFilter( handleException );
-
-#if _MSC_VER >= 1400  // MSVC 2005/8
-    _set_invalid_parameter_handler(handleInvalidParameter);
-#endif  // _MSC_VER >= 1400
-
-    _set_purecall_handler(handlePureVirtualCall);
-
-#if NV_OS_WIN32
-    // SYMOPT_DEFERRED_LOADS make us not take a ton of time unless we actual log traces
-    SymSetOptions(SYMOPT_DEFERRED_LOADS|SYMOPT_FAIL_CRITICAL_ERRORS|SYMOPT_LOAD_LINES|SYMOPT_UNDNAME);
-
-    if (!SymInitialize(GetCurrentProcess(), NULL, TRUE)) {
-        DWORD error = GetLastError();
-        nvDebug("SymInitialize returned error : %d\n", error);
-    }
-#endif
-
-#elif !NV_OS_WIN32 && defined(NV_HAVE_SIGNAL_H)
-
-    // Install our signal handler
-    struct sigaction sa;
-    sa.sa_sigaction = nvSigHandler;
-    sigemptyset (&sa.sa_mask);
-    sa.sa_flags = SA_ONSTACK | SA_RESTART | SA_SIGINFO;
-
-    sigaction(SIGSEGV, &sa, &s_old_sigsegv);
-    sigaction(SIGTRAP, &sa, &s_old_sigtrap);
-    sigaction(SIGFPE, &sa, &s_old_sigfpe);
-    sigaction(SIGBUS, &sa, &s_old_sigbus);
-
-#endif
-}
-
-/// Disable signal handler.
-void debug::disableSigHandler()
-{
-    nvCheck(s_sig_handler_enabled == true);
-    s_sig_handler_enabled = false;
-
-#if (NV_OS_WIN32 && NV_CC_MSVC) || NV_OS_DURANGO
-
-    ::SetUnhandledExceptionFilter( s_old_exception_filter );
-    s_old_exception_filter = NULL;
-
-#if NV_OS_WIN32
-    SymCleanup(GetCurrentProcess());
-#endif
-
-#elif !NV_OS_WIN32 && defined(NV_HAVE_SIGNAL_H)
-
-    sigaction(SIGSEGV, &s_old_sigsegv, NULL);
-    sigaction(SIGTRAP, &s_old_sigtrap, NULL);
-    sigaction(SIGFPE, &s_old_sigfpe, NULL);
-    sigaction(SIGBUS, &s_old_sigbus, NULL);
-
-#endif
-}
-
-
-bool debug::isDebuggerPresent()
-{
-#if NV_OS_WIN32
-    HINSTANCE kernel32 = GetModuleHandleA("kernel32.dll");
-    if (kernel32) {
-        FARPROC IsDebuggerPresent = GetProcAddress(kernel32, "IsDebuggerPresent");
-        if (IsDebuggerPresent != NULL && IsDebuggerPresent()) {
-            return true;
-        }
-    }
-    return false;
-#elif NV_OS_XBOX
-#ifdef _DEBUG
-    return DmIsDebuggerPresent() == TRUE;
-#else
-    return false;
-#endif
-#elif NV_OS_ORBIS
-  #if PS4_FINAL_REQUIREMENTS
-    return false; 
-  #else
-    return sceDbgIsDebuggerAttached() == 1;
-  #endif
-#elif NV_OS_DURANGO
-  #if XB1_FINAL_REQUIREMENTS
-    return false;
-  #else
-    return IsDebuggerPresent() == TRUE;
-  #endif
-#elif NV_OS_DARWIN
-    int mib[4];
-    struct kinfo_proc info;
-    size_t size;
-    mib[0] = CTL_KERN;
-    mib[1] = KERN_PROC;
-    mib[2] = KERN_PROC_PID;
-    mib[3] = getpid();
-    size = sizeof(info);
-    info.kp_proc.p_flag = 0;
-    sysctl(mib,4,&info,&size,NULL,0);
-    return ((info.kp_proc.p_flag & P_TRACED) == P_TRACED);
-#else
-    // if ppid != sid, some process spawned our app, probably a debugger. 
-    return getsid(getpid()) != getppid();
-#endif
-}
-
-bool debug::attachToDebugger()
-{
-#if NV_OS_WIN32
-    if (isDebuggerPresent() == FALSE) {
-        Path process(1024);
-        process.copy("\"");
-        GetSystemDirectoryA(process.str() + 1, 1024 - 1);
-
-        process.appendSeparator();
-
-        process.appendFormat("VSJitDebugger.exe\" -p %lu", ::GetCurrentProcessId());
-
-        STARTUPINFOA sSi;
-        memset(&sSi, 0, sizeof(sSi));
-
-        PROCESS_INFORMATION sPi;
-        memset(&sPi, 0, sizeof(sPi));
-        
-        BOOL b = CreateProcessA(NULL, process.str(), NULL, NULL, FALSE, 0, NULL, NULL, &sSi, &sPi);
-        if (b != FALSE) {
-            ::WaitForSingleObject(sPi.hProcess, INFINITE);
-            
-            DWORD dwExitCode;
-            ::GetExitCodeProcess(sPi.hProcess, &dwExitCode);
-            if (dwExitCode != 0) //if exit code is zero, a debugger was selected
-                b = FALSE;
-        }
-
-        if (sPi.hThread != NULL) ::CloseHandle(sPi.hThread);
-        if (sPi.hProcess != NULL) ::CloseHandle(sPi.hProcess);
-
-        if (b == FALSE)
-            return false;
-
-        for (int i = 0; i < 5*60; i++) {
-            if (isDebuggerPresent())
-                break;
-            ::Sleep(200);
-        }
-    }
-#endif // NV_OS_WIN32
-
-    return true;
-}
diff --git a/thirdparty/thekla_atlas/nvcore/Debug.h b/thirdparty/thekla_atlas/nvcore/Debug.h
deleted file mode 100644
index 3804ed4763..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Debug.h
+++ /dev/null
@@ -1,246 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_DEBUG_H
-#define NV_CORE_DEBUG_H
-
-#include "nvcore.h"
-
-#include <stdarg.h> // va_list
-
-#if NV_OS_IOS //ACS: maybe we want this for OSX too?
-#   ifdef __APPLE__
-#       include <TargetConditionals.h>
-#       include <signal.h>
-#   endif
-#endif
-
-// Make sure we are using our assert.
-#undef assert
-
-#define NV_ABORT_DEBUG      1
-#define NV_ABORT_IGNORE     2
-#define NV_ABORT_EXIT       3
-
-#define nvNoAssert(exp) \
-    NV_MULTI_LINE_MACRO_BEGIN \
-    (void)sizeof(exp); \
-    NV_MULTI_LINE_MACRO_END
-
-#if NV_NO_ASSERT
-
-#   define nvAssert(exp) nvNoAssert(exp)
-#   define nvCheck(exp) nvNoAssert(exp)
-#   define nvDebugAssert(exp) nvNoAssert(exp)
-#   define nvDebugCheck(exp) nvNoAssert(exp)
-#   define nvDebugBreak() nvNoAssert(0)
-
-#else // NV_NO_ASSERT
-
-#   if NV_CC_MSVC
-        // @@ Does this work in msvc-6 and earlier?
-#       define nvDebugBreak()       __debugbreak()
-//#       define nvDebugBreak()        __asm { int 3 }
-#   elif NV_OS_ORBIS
-#       define nvDebugBreak()       __debugbreak()
-#   elif NV_OS_IOS && TARGET_OS_IPHONE
-#       define nvDebugBreak()       raise(SIGINT)
-#   elif NV_CC_CLANG
-#       define nvDebugBreak()       __builtin_debugtrap()
-#   elif NV_CC_GNUC
-//#       define nvDebugBreak()       __builtin_debugtrap()     // Does GCC have debugtrap?
-#       define nvDebugBreak()		__builtin_trap()
-/*
-#   elif NV_CC_GNUC && NV_CPU_PPC && NV_OS_DARWIN
-// @@ Use __builtin_trap() on GCC
-#       define nvDebugBreak()       __asm__ volatile ("trap")
-#   elif NV_CC_GNUC && NV_CPU_X86 && NV_OS_DARWIN
-#       define nvDebugBreak()       __asm__ volatile ("int3")
-#   elif NV_CC_GNUC && NV_CPU_X86 
-#       define nvDebugBreak()       __asm__ ( "int %0" : :"I"(3) )
-#   elif NV_OS_ORBIS
-#       define nvDebugBreak()       __asm volatile ("int $0x41")
-#   else
-#       include <signal.h>
-#       define nvDebugBreak()       raise(SIGTRAP); 
-// define nvDebugBreak()        *((int *)(0)) = 0
-*/
-#   endif
-
-#  if NV_CC_MSVC
-#   define nvExpect(expr) (expr)
-#else
-#   define nvExpect(expr) __builtin_expect((expr) != 0, true)
-#endif
-
-#if NV_CC_CLANG 
-#   if __has_feature(attribute_analyzer_noreturn)
-#       define NV_ANALYZER_NORETURN __attribute__((analyzer_noreturn))
-#   else
-#       define NV_ANALYZER_NORETURN
-#   endif
-#else
-#   define NV_ANALYZER_NORETURN
-#endif
-
-#define nvDebugBreakOnce() \
-    NV_MULTI_LINE_MACRO_BEGIN \
-    static bool firstTime = true; \
-    if (firstTime) { firstTime = false; nvDebugBreak(); } \
-    NV_MULTI_LINE_MACRO_END
-
-#define nvAssertMacro(exp) \
-    NV_MULTI_LINE_MACRO_BEGIN \
-    if (!nvExpect(exp)) { \
-        if (nvAbort(#exp, __FILE__, __LINE__, __FUNC__) == NV_ABORT_DEBUG) { \
-            nvDebugBreak(); \
-        } \
-    } \
-    NV_MULTI_LINE_MACRO_END
-
-// GCC, LLVM need "##" before the __VA_ARGS__, MSVC doesn't care
-#define nvAssertMacroWithIgnoreAll(exp,...) \
-    NV_MULTI_LINE_MACRO_BEGIN \
-        static bool ignoreAll = false; \
-        if (!ignoreAll && !nvExpect(exp)) { \
-            int _result = nvAbort(#exp, __FILE__, __LINE__, __FUNC__, ##__VA_ARGS__); \
-            if (_result == NV_ABORT_DEBUG) { \
-                nvDebugBreak(); \
-            } else if (_result == NV_ABORT_IGNORE) { \
-                ignoreAll = true; \
-            } \
-        } \
-    NV_MULTI_LINE_MACRO_END
-
-// Interesting assert macro from Insomniac:
-// http://www.gdcvault.com/play/1015319/Developing-Imperfect-Software-How-to
-// Used as follows:
-// if (nvCheck(i < count)) {
-//     normal path
-// } else {
-//     fixup code.
-// }
-// This style of macro could be combined with __builtin_expect to let the compiler know failure is unlikely.
-#define nvCheckMacro(exp) \
-    (\
-        (exp) ? true : ( \
-            (nvAbort(#exp, __FILE__, __LINE__, __FUNC__) == NV_ABORT_DEBUG) ? (nvDebugBreak(), true) : ( false ) \
-        ) \
-    )
-
-
-#define nvAssert(exp)    nvAssertMacro(exp)
-#define nvCheck(exp)     nvAssertMacro(exp)
-
-#if defined(_DEBUG)
-#   define nvDebugAssert(exp)   nvAssertMacro(exp)
-#   define nvDebugCheck(exp)    nvAssertMacro(exp)
-#else // _DEBUG
-#   define nvDebugAssert(exp)   nvNoAssert(exp)
-#   define nvDebugCheck(exp)    nvNoAssert(exp)
-#endif // _DEBUG
-
-#endif // NV_NO_ASSERT
-
-// Use nvAssume for very simple expresions only: nvAssume(0), nvAssume(value == true), etc.
-/*#if !defined(_DEBUG)
-#   if NV_CC_MSVC
-#       define nvAssume(exp)    __assume(exp)
-#   else
-#       define nvAssume(exp)    nvCheck(exp)
-#   endif
-#else
-#   define nvAssume(exp)    nvCheck(exp)
-#endif*/
-
-#if defined(_DEBUG)
-#  if NV_CC_MSVC
-#   define nvUnreachable() nvAssert(0 && "unreachable"); __assume(0)
-#  else
-#   define nvUnreachable() nvAssert(0 && "unreachable"); __builtin_unreachable()
-#  endif
-#else
-#  if NV_CC_MSVC
-#   define nvUnreachable() __assume(0)
-#  else
-#   define nvUnreachable() __builtin_unreachable()
-#  endif
-#endif
-
-#define nvError(x)      nvAbort(x, __FILE__, __LINE__, __FUNC__)
-#define nvWarning(x)    nvDebugPrint("*** Warning %s/%d: %s\n", __FILE__, __LINE__, (x))
-
-#ifndef NV_DEBUG_PRINT
-#define NV_DEBUG_PRINT 1 //defined(_DEBUG)
-#endif
-
-#if NV_DEBUG_PRINT
-#define nvDebug(...)    nvDebugPrint(__VA_ARGS__)
-#else
-#if NV_CC_MSVC
-#define nvDebug(...)    __noop(__VA_ARGS__)
-#else
-#define nvDebug(...)    ((void)0) // Non-msvc platforms do not evaluate arguments?
-#endif
-#endif
-
-
-NVCORE_API int nvAbort(const char *exp, const char *file, int line, const char * func = NULL, const char * msg = NULL, ...) __attribute__((format (printf, 5, 6))) NV_ANALYZER_NORETURN;
-NVCORE_API void NV_CDECL nvDebugPrint( const char *msg, ... ) __attribute__((format (printf, 1, 2)));
-
-namespace nv
-{
-    inline bool isValidPtr(const void * ptr) {
-    #if NV_OS_DARWIN
-        return true;    // IC: Not sure what ranges are OK on OSX.
-    #endif
-        
-    #if NV_CPU_X86_64
-        if (ptr == NULL) return true;
-        if (reinterpret_cast<uint64>(ptr) < 0x10000ULL) return false;
-        if (reinterpret_cast<uint64>(ptr) >= 0x000007FFFFFEFFFFULL) return false;
-    #else
-	    if (reinterpret_cast<uintptr_t>(ptr) == 0xcccccccc) return false;
-	    if (reinterpret_cast<uintptr_t>(ptr) == 0xcdcdcdcd) return false;
-	    if (reinterpret_cast<uintptr_t>(ptr) == 0xdddddddd) return false;
-	    if (reinterpret_cast<uintptr_t>(ptr) == 0xffffffff) return false;
-    #endif
-        return true;
-    }
-
-    // Message handler interface.
-    struct MessageHandler {
-        virtual void log(const char * str, va_list arg) = 0;
-        virtual ~MessageHandler() {}
-    };
-
-    // Assert handler interface.
-    struct AssertHandler {
-        virtual int assertion(const char *exp, const char *file, int line, const char *func, const char *msg, va_list arg) = 0;
-        virtual ~AssertHandler() {}
-    };
-
-
-    namespace debug
-    {
-        NVCORE_API void dumpInfo();
-        NVCORE_API void dumpCallstack( MessageHandler *messageHandler, int callstackLevelsToSkip = 0 );
-
-        NVCORE_API void setMessageHandler( MessageHandler * messageHandler );
-        NVCORE_API void resetMessageHandler();
-
-        NVCORE_API void setAssertHandler( AssertHandler * assertHanlder );
-        NVCORE_API void resetAssertHandler();
-
-        NVCORE_API void enableSigHandler(bool interactive);
-        NVCORE_API void disableSigHandler();
-
-        NVCORE_API bool isDebuggerPresent();
-        NVCORE_API bool attachToDebugger();
-
-        NVCORE_API void terminate(int code);
-    }
-
-} // nv namespace
-
-#endif // NV_CORE_DEBUG_H
diff --git a/thirdparty/thekla_atlas/nvcore/DefsGnucDarwin.h b/thirdparty/thekla_atlas/nvcore/DefsGnucDarwin.h
deleted file mode 100644
index afb21c3d25..0000000000
--- a/thirdparty/thekla_atlas/nvcore/DefsGnucDarwin.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#ifndef NV_CORE_H
-#error "Do not include this file directly."
-#endif
-
-#include <stdint.h> // uint8_t, int8_t, ... uintptr_t
-#include <stddef.h> // operator new, size_t, NULL
-
-// Function linkage
-#define DLL_IMPORT
-#if __GNUC__ >= 4
-#	define DLL_EXPORT __attribute__((visibility("default")))
-#	define DLL_EXPORT_CLASS DLL_EXPORT
-#else
-#	define DLL_EXPORT
-#	define DLL_EXPORT_CLASS
-#endif
-
-// Function calling modes
-#if NV_CPU_X86
-#	define NV_CDECL 	__attribute__((cdecl))
-#	define NV_STDCALL	__attribute__((stdcall))
-#else
-#	define NV_CDECL 
-#	define NV_STDCALL
-#endif
-
-#define NV_FASTCALL		__attribute__((fastcall))
-#define NV_FORCEINLINE	__attribute__((always_inline)) inline
-#define NV_DEPRECATED   __attribute__((deprecated))
-#if NV_OS_IOS
-#define NV_THREAD_LOCAL // @@ IC: Looks like iOS does not have support for TLS declarations.
-#else
-#define NV_THREAD_LOCAL __thread
-#endif
-
-#if __GNUC__ > 2
-#define NV_PURE     __attribute__((pure))
-#define NV_CONST    __attribute__((const))
-#else
-#define NV_PURE
-#define NV_CONST
-#endif
-
-#define NV_NOINLINE __attribute__((noinline))
-
-// Define __FUNC__ properly.
-#if __STDC_VERSION__ < 199901L
-#	if __GNUC__ >= 2
-#		define __FUNC__ __PRETTY_FUNCTION__	// __FUNCTION__
-#	else
-#		define __FUNC__ "<unknown>"
-#	endif
-#else
-#	define __FUNC__ __PRETTY_FUNCTION__
-#endif
-
-#define restrict    __restrict__
diff --git a/thirdparty/thekla_atlas/nvcore/DefsGnucLinux.h b/thirdparty/thekla_atlas/nvcore/DefsGnucLinux.h
deleted file mode 100644
index 2126d866f5..0000000000
--- a/thirdparty/thekla_atlas/nvcore/DefsGnucLinux.h
+++ /dev/null
@@ -1,59 +0,0 @@
-#ifndef NV_CORE_H
-#error "Do not include this file directly."
-#endif
-
-#include <stdint.h> // uint8_t, int8_t, ... uintptr_t
-#include <stddef.h> // operator new, size_t, NULL
-
-// Function linkage
-#define DLL_IMPORT
-#if __GNUC__ >= 4
-#   define DLL_EXPORT   __attribute__((visibility("default")))
-#   define DLL_EXPORT_CLASS DLL_EXPORT
-#else
-#   define DLL_EXPORT
-#   define DLL_EXPORT_CLASS
-#endif
-
-// Function calling modes
-#if NV_CPU_X86
-#   define NV_CDECL     __attribute__((cdecl))
-#   define NV_STDCALL   __attribute__((stdcall))
-#else
-#   define NV_CDECL 
-#   define NV_STDCALL
-#endif
-
-#define NV_FASTCALL     __attribute__((fastcall))
-//#if __GNUC__ > 3
-// It seems that GCC does not assume always_inline implies inline. I think this depends on the GCC version :(
-#define NV_FORCEINLINE  inline __attribute__((always_inline))
-//#else
-// Some compilers complain that inline and always_inline are redundant.
-//#define NV_FORCEINLINE  __attribute__((always_inline))
-//#endif
-#define NV_DEPRECATED   __attribute__((deprecated))
-#define NV_THREAD_LOCAL __thread 
-
-#if __GNUC__ > 2
-#define NV_PURE     __attribute__((pure))
-#define NV_CONST    __attribute__((const))
-#else
-#define NV_PURE
-#define NV_CONST
-#endif
-
-#define NV_NOINLINE __attribute__((noinline))
-
-// Define __FUNC__ properly.
-#if __STDC_VERSION__ < 199901L
-#   if __GNUC__ >= 2
-#       define __FUNC__ __PRETTY_FUNCTION__ // __FUNCTION__
-#   else
-#       define __FUNC__ "<unknown>"
-#   endif
-#else
-#   define __FUNC__ __PRETTY_FUNCTION__
-#endif
-
-#define restrict    __restrict__
diff --git a/thirdparty/thekla_atlas/nvcore/DefsGnucWin32.h b/thirdparty/thekla_atlas/nvcore/DefsGnucWin32.h
deleted file mode 100644
index e1c8d6e4f8..0000000000
--- a/thirdparty/thekla_atlas/nvcore/DefsGnucWin32.h
+++ /dev/null
@@ -1,67 +0,0 @@
-#ifndef NV_CORE_H
-#error "Do not include this file directly."
-#endif
-
-//#include <cstddef> // size_t, NULL
-
-// Function linkage
-#define DLL_IMPORT	__declspec(dllimport)
-#define DLL_EXPORT	__declspec(dllexport)
-#define DLL_EXPORT_CLASS DLL_EXPORT
-
-// Function calling modes
-#if NV_CPU_X86
-#	define NV_CDECL 	__attribute__((cdecl))
-#	define NV_STDCALL	__attribute__((stdcall))
-#else
-#	define NV_CDECL 
-#	define NV_STDCALL
-#endif
-
-#define NV_FASTCALL		__attribute__((fastcall))
-// -- GODOT start -
-#define NV_FORCEINLINE	__attribute__((always_inline)) inline
-// -- GODOT end -
-#define NV_DEPRECATED   __attribute__((deprecated))
-
-#if __GNUC__ > 2
-#define NV_PURE		__attribute__((pure))
-#define NV_CONST	__attribute__((const))
-#else
-#define NV_PURE
-#define NV_CONST
-#endif
-
-#define NV_NOINLINE __attribute__((noinline))
-
-// Define __FUNC__ properly.
-#if __STDC_VERSION__ < 199901L
-#	if __GNUC__ >= 2
-#		define __FUNC__ __PRETTY_FUNCTION__	// __FUNCTION__
-#	else
-#		define __FUNC__ "<unknown>"
-#	endif
-#else
-#	define __FUNC__ __PRETTY_FUNCTION__
-#endif
-
-#define restrict	__restrict__
-
-/*
-// Type definitions
-typedef unsigned char		uint8;
-typedef signed char			int8;
-
-typedef unsigned short		uint16;
-typedef signed short		int16;
-
-typedef unsigned int		uint32;
-typedef signed int			int32;
-
-typedef unsigned long long	uint64;
-typedef signed long long	int64;
-
-// Aliases
-typedef uint32				uint;
-*/
-
diff --git a/thirdparty/thekla_atlas/nvcore/DefsVcWin32.h b/thirdparty/thekla_atlas/nvcore/DefsVcWin32.h
deleted file mode 100644
index a915f3791a..0000000000
--- a/thirdparty/thekla_atlas/nvcore/DefsVcWin32.h
+++ /dev/null
@@ -1,94 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#ifndef NV_CORE_H
-#error "Do not include this file directly."
-#endif
-
-// Function linkage
-#define DLL_IMPORT __declspec(dllimport)
-#define DLL_EXPORT __declspec(dllexport)
-#define DLL_EXPORT_CLASS DLL_EXPORT
-
-// Function calling modes
-#define NV_CDECL        __cdecl
-#define NV_STDCALL      __stdcall
-#define NV_FASTCALL     __fastcall
-#define NV_DEPRECATED
-
-#define NV_PURE
-#define NV_CONST
-
-// Set standard function names.
-#if _MSC_VER < 1900
-#	define snprintf _snprintf
-#endif
-#if _MSC_VER < 1500
-#   define vsnprintf _vsnprintf
-#endif
-#if _MSC_VER < 1700
-#   define strtoll _strtoi64
-#   define strtoull _strtoui64
-#endif
-//#define chdir _chdir
-#define getcwd _getcwd 
-
-#if _MSC_VER <= 1600
-#define va_copy(a, b) (a) = (b)
-#endif
-
-#if !defined restrict
-#define restrict
-#endif
-
-// Ignore gcc attributes.
-#define __attribute__(X)
-
-#if !defined __FUNC__
-#define __FUNC__ __FUNCTION__ 
-#endif
-
-#define NV_NOINLINE __declspec(noinline)
-#define NV_FORCEINLINE __forceinline
-
-#define NV_THREAD_LOCAL __declspec(thread)
-
-/*
-// Type definitions
-typedef unsigned char       uint8;
-typedef signed char         int8;
-
-typedef unsigned short      uint16;
-typedef signed short        int16;
-
-typedef unsigned int        uint32;
-typedef signed int          int32;
-
-typedef unsigned __int64    uint64;
-typedef signed __int64      int64;
-
-// Aliases
-typedef uint32              uint;
-*/
-
-// Unwanted VC++ warnings to disable.
-/*
-#pragma warning(disable : 4244)     // conversion to float, possible loss of data
-#pragma warning(disable : 4245)     // conversion from 'enum ' to 'unsigned long', signed/unsigned mismatch
-#pragma warning(disable : 4100)     // unreferenced formal parameter
-#pragma warning(disable : 4514)     // unreferenced inline function has been removed
-#pragma warning(disable : 4710)     // inline function not expanded
-#pragma warning(disable : 4127)     // Conditional expression is constant
-#pragma warning(disable : 4305)     // truncation from 'const double' to 'float'
-#pragma warning(disable : 4505)     // unreferenced local function has been removed
-
-#pragma warning(disable : 4702)     // unreachable code in inline expanded function
-#pragma warning(disable : 4711)     // function selected for automatic inlining
-#pragma warning(disable : 4725)     // Pentium fdiv bug
-
-#pragma warning(disable : 4786)     // Identifier was truncated and cannot be debugged.
-
-#pragma warning(disable : 4675)     // resolved overload was found by argument-dependent lookup
-*/
-
-#pragma warning(1 : 4705)     // Report unused local variables.
-#pragma warning(1 : 4555)     // Expression has no effect.
diff --git a/thirdparty/thekla_atlas/nvcore/FileSystem.cpp b/thirdparty/thekla_atlas/nvcore/FileSystem.cpp
deleted file mode 100644
index 5ed0ca074f..0000000000
--- a/thirdparty/thekla_atlas/nvcore/FileSystem.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "FileSystem.h"
-
-#if NV_OS_WIN32
-#define _CRT_NONSTDC_NO_WARNINGS // _chdir is defined deprecated, but that's a bug, chdir is deprecated, _chdir is *not*.
-//#include <shlwapi.h> // PathFileExists
-#include <windows.h> // GetFileAttributes
-#include <direct.h> // _mkdir
-#elif NV_OS_XBOX
-#include <Xtl.h>
-#elif NV_OS_DURANGO
-#include <Windows.h>
-#else
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-#include <stdio.h> // remove, unlink
-
-using namespace nv;
-
-
-bool FileSystem::exists(const char * path)
-{
-#if NV_OS_UNIX
-	return access(path, F_OK|R_OK) == 0;
-	//struct stat buf;
-	//return stat(path, &buf) == 0;
-#elif NV_OS_WIN32 || NV_OS_XBOX || NV_OS_DURANGO
-    // PathFileExists requires linking to shlwapi.lib
-    //return PathFileExists(path) != 0;
-    return GetFileAttributesA(path) != INVALID_FILE_ATTRIBUTES;
-#else
-	if (FILE * fp = fopen(path, "r"))
-	{
-		fclose(fp);
-		return true;
-	}
-	return false;
-#endif
-}
-
-bool FileSystem::createDirectory(const char * path)
-{
-#if NV_OS_WIN32 || NV_OS_XBOX || NV_OS_DURANGO
-    return CreateDirectoryA(path, NULL) != 0;
-#elif NV_OS_ORBIS
-    // not implemented
-	return false;
-#else
-    return mkdir(path, 0777) != -1;
-#endif
-}
-
-bool FileSystem::changeDirectory(const char * path)
-{
-#if NV_OS_WIN32
-    return _chdir(path) != -1;
-#elif NV_OS_XBOX || NV_OS_DURANGO
-	// Xbox doesn't support Current Working Directory!
-	return false;
-#elif NV_OS_ORBIS
-    // Orbis doesn't support Current Working Directory!
-	return false;
-#else
-    return chdir(path) != -1;
-#endif
-}
-
-bool FileSystem::removeFile(const char * path)
-{
-    // @@ Use unlink or remove?
-    return remove(path) == 0;
-}
diff --git a/thirdparty/thekla_atlas/nvcore/FileSystem.h b/thirdparty/thekla_atlas/nvcore/FileSystem.h
deleted file mode 100644
index afd0f449d3..0000000000
--- a/thirdparty/thekla_atlas/nvcore/FileSystem.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_CORE_FILESYSTEM_H
-#define NV_CORE_FILESYSTEM_H
-
-#include "nvcore.h"
-
-namespace nv
-{
-
-    namespace FileSystem
-    {
-        NVCORE_API bool exists(const char * path);
-        NVCORE_API bool createDirectory(const char * path);
-        NVCORE_API bool changeDirectory(const char * path);
-        NVCORE_API bool removeFile(const char * path);
-
-    } // FileSystem namespace
-
-} // nv namespace
-
-
-#endif // NV_CORE_FILESYSTEM_H
diff --git a/thirdparty/thekla_atlas/nvcore/ForEach.h b/thirdparty/thekla_atlas/nvcore/ForEach.h
deleted file mode 100644
index bc66f424ef..0000000000
--- a/thirdparty/thekla_atlas/nvcore/ForEach.h
+++ /dev/null
@@ -1,71 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_FOREACH_H
-#define NV_CORE_FOREACH_H
-
-/*
-These foreach macros are very non-standard and somewhat confusing, but I like them.
-*/
-
-#include "nvcore.h"
-
-
-#if NV_CC_CPP11
-
-#define NV_FOREACH(i, container) \
-    for (auto i = (container).start(); !(container).isDone(i); (container).advance(i))
-
-#elif NV_CC_GNUC // If typeof is available:
-
-/*
-Ideally we would like to write this:
-
-#define NV_FOREACH(i, container) \
-    for(decltype(container)::PseudoIndex i((container).start()); !(container).isDone(i); (container).advance(i))
-
-But gcc versions prior to 4.7 required an intermediate type. See:
-https://gcc.gnu.org/bugzilla/show_bug.cgi?id=6709
-*/
-
-#define NV_FOREACH(i, container) \
-    typedef typeof(container) NV_STRING_JOIN2(cont,__LINE__); \
-    for(NV_STRING_JOIN2(cont,__LINE__)::PseudoIndex i((container).start()); !(container).isDone(i); (container).advance(i))
-
-#else // If typeof not available:
-
-#define NV_NEED_PSEUDOINDEX_WRAPPER 1
-
-#include <new> // placement new
-
-struct PseudoIndexWrapper {
-    template <typename T>
-    PseudoIndexWrapper(const T & container) {
-        nvStaticCheck(sizeof(typename T::PseudoIndex) <= sizeof(memory));
-        new (memory) typename T::PseudoIndex(container.start());
-    }
-    // PseudoIndex cannot have a dtor!
-
-    template <typename T> typename T::PseudoIndex & operator()(const T * /*container*/) {
-        return *reinterpret_cast<typename T::PseudoIndex *>(memory);
-    }
-    template <typename T> const typename T::PseudoIndex & operator()(const T * /*container*/) const {
-        return *reinterpret_cast<const typename T::PseudoIndex *>(memory);
-    }
-
-    uint8 memory[4];	// Increase the size if we have bigger enumerators.
-};
-
-#define NV_FOREACH(i, container) \
-    for(PseudoIndexWrapper i(container); !(container).isDone(i(&(container))); (container).advance(i(&(container))))
-
-#endif
-
-// Declare foreach keyword.
-#if !defined NV_NO_USE_KEYWORDS
-#   define foreach NV_FOREACH
-#   define foreach_index NV_FOREACH
-#endif
-
-
-#endif // NV_CORE_FOREACH_H
diff --git a/thirdparty/thekla_atlas/nvcore/Hash.h b/thirdparty/thekla_atlas/nvcore/Hash.h
deleted file mode 100644
index a8b0b2c63b..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Hash.h
+++ /dev/null
@@ -1,83 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_HASH_H
-#define NV_CORE_HASH_H
-
-#include "nvcore.h"
-
-namespace nv
-{
-    inline uint sdbmHash(const void * data_in, uint size, uint h = 5381)
-    {
-        const uint8 * data = (const uint8 *) data_in;
-        uint i = 0;
-        while (i < size) {
-            h = (h << 16) + (h << 6) - h + (uint) data[i++];
-        }
-        return h;
-    }
-
-    // Note that this hash does not handle NaN properly.
-    inline uint sdbmFloatHash(const float * f, uint count, uint h = 5381)
-    {
-        for (uint i = 0; i < count; i++) {
-            //nvDebugCheck(nv::isFinite(*f));
-            union { float f; uint32 i; } x = { f[i] };
-            if (x.i == 0x80000000) x.i = 0;
-            h = sdbmHash(&x, 4, h);
-        }
-        return h;
-    }
-
-
-    template <typename T>
-    inline uint hash(const T & t, uint h = 5381)
-    {
-        return sdbmHash(&t, sizeof(T), h);
-    }
-
-    template <>
-    inline uint hash(const float & f, uint h)
-    {
-        return sdbmFloatHash(&f, 1, h);
-    }
-
-
-    // Functors for hash table:
-    template <typename Key> struct Hash 
-    {
-        uint operator()(const Key & k) const {
-            return hash(k);
-        }
-    };
-
-    template <typename Key> struct Equal
-    {
-        bool operator()(const Key & k0, const Key & k1) const {
-            return k0 == k1;
-        }
-    };
-
-
-    // @@ Move to Utils.h?
-    template <typename T1, typename T2>
-    struct Pair {
-        T1 first;
-        T2 second;
-    };
-
-    template <typename T1, typename T2>
-    bool operator==(const Pair<T1,T2> & p0, const Pair<T1,T2> & p1) {
-        return p0.first == p1.first && p0.second == p1.second;
-    }
-
-    template <typename T1, typename T2>
-    uint hash(const Pair<T1,T2> & p, uint h = 5381) {
-        return hash(p.second, hash(p.first));
-    }
-
-
-} // nv namespace
-
-#endif // NV_CORE_HASH_H
diff --git a/thirdparty/thekla_atlas/nvcore/HashMap.h b/thirdparty/thekla_atlas/nvcore/HashMap.h
deleted file mode 100644
index 7856d6a8c9..0000000000
--- a/thirdparty/thekla_atlas/nvcore/HashMap.h
+++ /dev/null
@@ -1,174 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_HASHMAP_H
-#define NV_CORE_HASHMAP_H
-
-/*
-HashMap based on Thatcher Ulrich <tu@tulrich.com> container, donated to the Public Domain.
-
-I'd like to do something to reduce the amount of code generated with this template. The type of 
-U is largely irrelevant to the generated code, except for calls to constructors and destructors,
-but the combination of all T and U pairs, generate a large amounts of code.
-
-HashMap is not used in NVTT, so it could be removed from the repository.
-*/
-
-
-#include "Memory.h"
-#include "Debug.h"
-#include "ForEach.h"
-#include "Hash.h"
-
-namespace nv 
-{
-    class Stream;
-
-    /** Thatcher Ulrich's hash table.
-    *
-    * Hash table, linear probing, internal chaining.  One
-    * interesting/nice thing about this implementation is that the table
-    * itself is a flat chunk of memory containing no pointers, only
-    * relative indices.  If the key and value types of the hash contain
-    * no pointers, then the hash can be serialized using raw IO.  Could
-    * come in handy.
-    *
-    * Never shrinks, unless you explicitly clear() it.  Expands on
-    * demand, though.  For best results, if you know roughly how big your
-    * table will be, default it to that size when you create it.
-    */
-    template<typename T, typename U, typename H = Hash<T>, typename E = Equal<T> >
-    class NVCORE_CLASS HashMap
-    {
-        NV_FORBID_COPY(HashMap);
-    public:
-
-        /// Default ctor.
-        HashMap() : entry_count(0), size_mask(-1), table(NULL) { }
-
-        /// Ctor with size hint.
-        explicit HashMap(int size_hint) : entry_count(0), size_mask(-1), table(NULL) { setCapacity(size_hint); }
-
-        /// Dtor.
-        ~HashMap() { clear(); }
-
-
-        void set(const T& key, const U& value);
-        void add(const T& key, const U& value);
-        bool remove(const T& key);
-        void clear();
-        bool isEmpty() const;
-        bool get(const T& key, U* value = NULL, T* other_key = NULL) const;
-        bool contains(const T & key) const;
-        int	size() const;
-        int	count() const;
-        int	capacity() const;
-        void checkExpand();
-        void resize(int n);
-
-        void setCapacity(int new_size);
-
-        // Behaves much like std::pair.
-        struct Entry
-        {
-            int	next_in_chain;	// internal chaining for collisions
-            uint hash_value;	// avoids recomputing.  Worthwhile?
-            T key;
-            U value;
-
-            Entry() : next_in_chain(-2) {}
-            Entry(const Entry& e) : next_in_chain(e.next_in_chain), hash_value(e.hash_value), key(e.key), value(e.value) {}
-            Entry(const T& k, const U& v, int next, int hash) : next_in_chain(next), hash_value(hash), key(k), value(v) {}
-            
-            bool isEmpty() const { return next_in_chain == -2; }
-            bool isEndOfChain() const { return next_in_chain == -1; }
-            bool isTombstone() const { return hash_value == TOMBSTONE_HASH; }
-
-            void clear() {
-                key.~T();	// placement delete
-                value.~U();	// placement delete
-                next_in_chain = -2;
-                hash_value = ~TOMBSTONE_HASH;
-            }
-
-            void makeTombstone() {
-                key.~T();
-                value.~U();
-                hash_value = TOMBSTONE_HASH;
-            }
-        };
-
-
-        // HashMap enumerator.
-        typedef int PseudoIndex;
-        PseudoIndex start() const { PseudoIndex i = 0; findNext(i); return i; }
-        bool isDone(const PseudoIndex & i) const { nvDebugCheck(i <= size_mask+1); return i == size_mask+1; };
-        void advance(PseudoIndex & i) const { nvDebugCheck(i <= size_mask+1); i++; findNext(i); }
-
-#if NV_NEED_PSEUDOINDEX_WRAPPER
-        Entry & operator[]( const PseudoIndexWrapper & i ) {
-            Entry & e = entry(i(this));
-            nvDebugCheck(e.isTombstone() == false);
-            return e;
-        }
-        const Entry & operator[]( const PseudoIndexWrapper & i ) const {
-            const Entry & e = entry(i(this));
-            nvDebugCheck(e.isTombstone() == false);
-            return e;
-        }
-#else
-        Entry & operator[](const PseudoIndex & i) {
-            Entry & e = entry(i);
-            nvDebugCheck(e.isTombstone() == false);
-            return e;
-        }
-        const Entry & operator[](const PseudoIndex & i) const {
-            const Entry & e = entry(i);
-            nvDebugCheck(e.isTombstone() == false);
-            return e;
-        }
-#endif
-
-
-        // By default we serialize the key-value pairs compactl	y.
-        template<typename _T, typename _U, typename _H, typename _E>
-        friend Stream & operator<< (Stream & s, HashMap<_T, _U, _H, _E> & map);
-
-        // This requires more storage, but saves us from rehashing the elements.
-        template<typename _T, typename _U, typename _H, typename _E>
-        friend Stream & rawSerialize(Stream & s, HashMap<_T, _U, _H, _E> & map);
-
-        /// Swap the members of this vector and the given vector.
-        template<typename _T, typename _U, typename _H, typename _E>
-        friend void swap(HashMap<_T, _U, _H, _E> & a, HashMap<_T, _U, _H, _E> & b);
-	
-    private:
-        static const uint TOMBSTONE_HASH = (uint) -1;
-
-        uint compute_hash(const T& key) const;
-
-        // Find the index of the matching entry. If no match, then return -1.
-        int	findIndex(const T& key) const;
-
-        // Return the index of the newly cleared element.
-        int removeTombstone(int index);
-
-        // Helpers.
-        Entry & entry(int index);
-        const Entry & entry(int index) const;
-
-        void setRawCapacity(int new_size);
-
-        // Move the enumerator to the next valid element.
-        void findNext(PseudoIndex & i) const;
-
-
-        int	entry_count;
-        int	size_mask;
-        Entry * table;
-
-    };
-
-} // nv namespace
-
-#endif // NV_CORE_HASHMAP_H
diff --git a/thirdparty/thekla_atlas/nvcore/HashMap.inl b/thirdparty/thekla_atlas/nvcore/HashMap.inl
deleted file mode 100644
index f0b6bfea62..0000000000
--- a/thirdparty/thekla_atlas/nvcore/HashMap.inl
+++ /dev/null
@@ -1,550 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_HASHMAP_INL
-#define NV_CORE_HASHMAP_INL
-
-#include "HashMap.h"
-
-#include "Stream.h"
-#include "Utils.h" // swap
-
-#include <new> // for placement new
-
-
-namespace nv 
-{
-
-    // Set a new or existing value under the key, to the value.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::set(const T& key, const U& value)
-    {
-        int	index = findIndex(key);
-        if (index >= 0)
-        {
-            entry(index).value = value;
-            return;
-        }
-
-        // Entry under key doesn't exist.
-        add(key, value);
-    }
-
-
-    // Add a new value to the hash table, under the specified key.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::add(const T& key, const U& value)
-    {
-        nvCheck(findIndex(key) == -1);
-
-        checkExpand();
-        nvCheck(table != NULL);
-        entry_count++;
-
-        const uint hash_value = compute_hash(key);
-        const int index = hash_value & size_mask;
-
-        Entry * natural_entry = &(entry(index));
-
-        if (natural_entry->isEmpty())
-        {
-            // Put the new entry in.
-            new (natural_entry) Entry(key, value, -1, hash_value);
-        } 
-        else if (natural_entry->isTombstone()) {
-            // Put the new entry in, without disturbing the rest of the chain.
-            int next_in_chain = natural_entry->next_in_chain;
-            new (natural_entry) Entry(key, value, next_in_chain, hash_value);
-        }
-        else
-        {
-            // Find a blank spot.
-            int	blank_index = index;
-            for (int search_count = 0; ; search_count++)
-            {
-                blank_index = (blank_index + 1) & size_mask;
-                if (entry(blank_index).isEmpty()) break;	// found it
-                if (entry(blank_index).isTombstone()) {
-                    blank_index = removeTombstone(blank_index);
-                    break;
-                }
-                nvCheck(search_count < this->size_mask);
-            }
-            Entry * blank_entry = &entry(blank_index);
-
-            if (int(natural_entry->hash_value & size_mask) == index)
-            {
-                // Collision.  Link into this chain.
-
-                // Move existing list head.
-                new (blank_entry) Entry(*natural_entry);	// placement new, copy ctor
-
-                // Put the new info in the natural entry.
-                natural_entry->key = key;
-                natural_entry->value = value;
-                natural_entry->next_in_chain = blank_index;
-                natural_entry->hash_value = hash_value;
-            }
-            else
-            {
-                // Existing entry does not naturally
-                // belong in this slot.  Existing
-                // entry must be moved.
-
-                // Find natural location of collided element (i.e. root of chain)
-                int	collided_index = natural_entry->hash_value & size_mask;
-                for (int search_count = 0; ; search_count++)
-                {
-                    Entry * e = &entry(collided_index);
-                    if (e->next_in_chain == index)
-                    {
-                        // Here's where we need to splice.
-                        new (blank_entry) Entry(*natural_entry);
-                        e->next_in_chain = blank_index;
-                        break;
-                    }
-                    collided_index = e->next_in_chain;
-                    nvCheck(collided_index >= 0 && collided_index <= size_mask);
-                    nvCheck(search_count <= size_mask);
-                }
-
-                // Put the new data in the natural entry.
-                natural_entry->key = key;
-                natural_entry->value = value;
-                natural_entry->hash_value = hash_value;
-                natural_entry->next_in_chain = -1;
-            }
-        }
-    }
-
-
-    // Remove the first value under the specified key.
-    template<typename T, typename U, typename H, typename E>
-    bool HashMap<T, U, H, E>::remove(const T& key)
-    {
-        if (table == NULL)
-        {
-            return false;
-        }
-
-        int	index = findIndex(key);
-        if (index < 0)
-        {
-            return false;
-        }
-
-        Entry * pos = &entry(index);
-
-        int natural_index = (int) (pos->hash_value & size_mask);
-
-        if (index != natural_index) {
-            // We're not the head of our chain, so we can
-            // be spliced out of it.
-
-            // Iterate up the chain, and splice out when
-            // we get to m_index.
-            Entry* e = &entry(natural_index);
-            while (e->next_in_chain != index) {
-                nvDebugCheck(e->isEndOfChain() == false);
-                e = &entry(e->next_in_chain);
-            }
-
-            if (e->isTombstone() && pos->isEndOfChain()) {
-                // Tombstone has nothing else to point
-                // to, so mark it empty.
-                e->next_in_chain = -2;
-            } else {
-                e->next_in_chain = pos->next_in_chain;
-            }
-
-            pos->clear();
-        }
-        else if (pos->isEndOfChain() == false) {
-            // We're the head of our chain, and there are
-            // additional elements.
-            //
-            // We need to put a tombstone here.
-            //
-            // We can't clear the element, because the
-            // rest of the elements in the chain must be
-            // linked to this position.
-            //
-            // We can't move any of the succeeding
-            // elements in the chain (i.e. to fill this
-            // entry), because we don't want to invalidate
-            // any other existing iterators.
-            pos->makeTombstone();
-        } else {
-            // We're the head of the chain, but we're the
-            // only member of the chain.
-            pos->clear();
-        }
-
-        entry_count--;
-
-        return true;
-    }
-
-
-    // Remove all entries from the hash table.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::clear()
-    {
-        if (table != NULL)
-        {
-            // Delete the entries.
-            for (int i = 0, n = size_mask; i <= n; i++)
-            {
-                Entry * e = &entry(i);
-                if (e->isEmpty() == false && e->isTombstone() == false)
-                {
-                    e->clear();
-                }
-            }
-            free(table);
-            table = NULL;
-            entry_count = 0;
-            size_mask = -1;
-        }
-    }
-
-
-    // Returns true if the hash is empty.
-    template<typename T, typename U, typename H, typename E>
-    bool HashMap<T, U, H, E>::isEmpty() const
-    {
-        return table == NULL || entry_count == 0;
-    }
-
-
-    // Retrieve the value under the given key.
-    // - If there's no value under the key, then return false and leave *value alone.
-    // - If there is a value, return true, and set *value to the entry's value.
-    // - If value == NULL, return true or false according to the presence of the key, but don't touch *value.
-    template<typename T, typename U, typename H, typename E>
-    bool HashMap<T, U, H, E>::get(const T& key, U* value/*= NULL*/, T* other_key/*= NULL*/) const
-    {
-        int	index = findIndex(key);
-        if (index >= 0)
-        {
-            if (value != NULL) {
-                *value = entry(index).value;	// take care with side-effects!
-            }
-            if (other_key != NULL) {
-                *other_key = entry(index).key;
-            }
-            return true;
-        }
-        return false;
-    }
-
-    // Determine if the given key is contained in the hash.
-    template<typename T, typename U, typename H, typename E>
-    bool HashMap<T, U, H, E>::contains(const T & key) const
-    {
-        return get(key);
-    }
-
-    // Number of entries in the hash.
-    template<typename T, typename U, typename H, typename E>
-    int	HashMap<T, U, H, E>::size() const
-    {
-        return entry_count;
-    }
-
-    // Number of entries in the hash.
-    template<typename T, typename U, typename H, typename E>
-    int	HashMap<T, U, H, E>::count() const
-    {
-        return size();
-    }
-
-    template<typename T, typename U, typename H, typename E>
-    int	HashMap<T, U, H, E>::capacity() const
-    {
-        return size_mask+1;
-    }
-
-
-    // Resize the hash table to fit one more entry.  Often this doesn't involve any action.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::checkExpand()
-    {
-        if (table == NULL) {
-            // Initial creation of table.  Make a minimum-sized table.
-            setRawCapacity(16);
-        } 
-        else if (entry_count * 3 > (size_mask + 1) * 2) {
-            // Table is more than 2/3rds full.  Expand.
-            setRawCapacity(entry_count * 2);
-        }
-    }
-
-
-    // Hint the bucket count to >= n.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::resize(int n)
-    {
-        // Not really sure what this means in relation to
-        // STLport's hash_map... they say they "increase the
-        // bucket count to at least n" -- but does that mean
-        // their real capacity after resize(n) is more like
-        // n*2 (since they do linked-list chaining within
-        // buckets?).
-        setCapacity(n);
-    }
-
-
-    // Size the hash so that it can comfortably contain the given number of elements.  If the hash already contains more
-    // elements than new_size, then this may be a no-op.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::setCapacity(int new_size)
-    {
-        int	new_raw_size = (new_size * 3) / 2;
-        if (new_raw_size < size()) { return; }
-
-        setRawCapacity(new_raw_size);
-    }
-
-
-    // By default we serialize the key-value pairs compactly.
-    template<typename _T, typename _U, typename _H, typename _E>
-    Stream & operator<< (Stream & s, HashMap<_T, _U, _H, _E> & map)
-    {
-        typedef typename HashMap<_T, _U, _H, _E>::Entry HashMapEntry;
-
-        int entry_count = map.entry_count;
-        s << entry_count;
-
-        if (s.isLoading()) {
-            map.clear();
-            if(entry_count == 0) {
-                return s;
-            }
-            map.entry_count = entry_count;
-            map.size_mask = nextPowerOfTwo(U32(entry_count)) - 1;
-            map.table = malloc<HashMapEntry>(map.size_mask + 1);
-
-            for (int i = 0; i <= map.size_mask; i++) {
-                map.table[i].next_in_chain = -2;	// mark empty
-            }
-
-            _T key;
-            _U value;
-            for (int i = 0; i < entry_count; i++) {
-                s << key << value;
-                map.add(key, value);
-            }
-        }
-        else {
-            int i = 0;
-            map.findNext(i);
-            while (i != map.size_mask+1) {
-                HashMapEntry & e = map.entry(i);
-                
-                s << e.key << e.value;
-                
-                i++;
-                map.findNext(i);
-            }
-            //for(HashMap<_T, _U, _H, _E>::PseudoIndex i((map).start()); !(map).isDone(i); (map).advance(i)) {
-            //foreach(i, map) {
-            //    s << map[i].key << map[i].value;
-            //}
-        }
-
-        return s;
-    }
-
-    // This requires more storage, but saves us from rehashing the elements.
-    template<typename _T, typename _U, typename _H, typename _E>
-    Stream & rawSerialize(Stream & s, HashMap<_T, _U, _H, _E> & map)
-    {
-        typedef typename HashMap<_T, _U, _H, _E>::Entry HashMapEntry;
-
-        if (s.isLoading()) {
-            map.clear();
-        }
-
-        s << map.size_mask;
-
-        if (map.size_mask != -1) {
-            s << map.entry_count;
-
-            if (s.isLoading()) {  
-                map.table = new HashMapEntry[map.size_mask+1];
-            }
-
-            for (int i = 0; i <= map.size_mask; i++) {
-                HashMapEntry & e = map.table[i];
-                s << e.next_in_chain << e.hash_value;
-                s << e.key;
-                s << e.value;
-            }
-        }
-
-        return s;
-    }
-
-    // Swap the members of this vector and the given vector.
-    template<typename _T, typename _U, typename _H, typename _E>
-    void swap(HashMap<_T, _U, _H, _E> & a, HashMap<_T, _U, _H, _E> & b)
-    {
-        swap(a.entry_count, b.entry_count);
-        swap(a.size_mask, b.size_mask);
-        swap(a.table, b.table);
-    }
-
-
-    template<typename T, typename U, typename H, typename E>
-    uint HashMap<T, U, H, E>::compute_hash(const T& key) const
-    {
-        H hash;
-        uint hash_value = hash(key);
-        if (hash_value == TOMBSTONE_HASH) {
-            hash_value ^= 0x8000;
-        }
-        return hash_value;
-    }
-
-    // Find the index of the matching entry. If no match, then return -1.
-    template<typename T, typename U, typename H, typename E>
-    int	HashMap<T, U, H, E>::findIndex(const T& key) const
-    {
-        if (table == NULL) return -1;
-
-        E equal;
-
-        uint hash_value = compute_hash(key);
-        int	index = hash_value & size_mask;
-
-        const Entry * e = &entry(index);
-        if (e->isEmpty()) return -1;
-        if (e->isTombstone() == false && int(e->hash_value & size_mask) != index) {
-            // occupied by a collider
-            return -1;
-        }
-
-        for (;;)
-        {
-            nvCheck(e->isTombstone() || (e->hash_value & size_mask) == (hash_value & size_mask));
-
-            if (e->hash_value == hash_value && equal(e->key, key))
-            {
-                // Found it.
-                return index;
-            }
-            nvDebugCheck(e->isTombstone() || !equal(e->key, key));   // keys are equal, but hash differs!
-
-            // Keep looking through the chain.
-            index = e->next_in_chain;
-            if (index == -1) break;	// end of chain
-
-            nvCheck(index >= 0 && index <= size_mask);
-            e = &entry(index);
-
-            nvCheck(e->isEmpty() == false || e->isTombstone());
-        }
-        return -1;
-    }
-
-    // Return the index of the newly cleared element.
-    template<typename T, typename U, typename H, typename E>
-    int HashMap<T, U, H, E>::removeTombstone(int index) {
-        Entry* e = &entry(index);
-        nvCheck(e->isTombstone());
-        nvCheck(!e->isEndOfChain());
-
-        // Move the next element of the chain into the
-        // tombstone slot, and return the vacated element.
-        int new_blank_index = e->next_in_chain;
-        Entry* new_blank = &entry(new_blank_index);
-        new (e) Entry(*new_blank);
-        new_blank->clear();
-        return new_blank_index;
-    }
-
-    // Helpers.
-    template<typename T, typename U, typename H, typename E>
-    typename HashMap<T, U, H, E>::Entry & HashMap<T, U, H, E>::entry(int index)
-    {
-        nvDebugCheck(table != NULL);
-        nvDebugCheck(index >= 0 && index <= size_mask);
-        return table[index];
-    }
-    template<typename T, typename U, typename H, typename E>
-    const typename HashMap<T, U, H, E>::Entry & HashMap<T, U, H, E>::entry(int index) const
-    {
-        nvDebugCheck(table != NULL);
-        nvDebugCheck(index >= 0 && index <= size_mask);
-        return table[index];
-    }
-
-
-    // Resize the hash table to the given size (Rehash the contents of the current table).  The arg is the number of
-    // hash table entries, not the number of elements we should actually contain (which will be less than this).
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::setRawCapacity(int new_size)
-    {
-        if (new_size <= 0) {
-            // Special case.
-            clear();
-            return;
-        }
-
-        // Force new_size to be a power of two.
-        new_size = nextPowerOfTwo(U32(new_size));
-
-        HashMap<T, U, H, E> new_hash;
-        new_hash.table = malloc<Entry>(new_size);
-        nvDebugCheck(new_hash.table != NULL);
-
-        new_hash.entry_count = 0;
-        new_hash.size_mask = new_size - 1;
-        for (int i = 0; i < new_size; i++)
-        {
-            new_hash.entry(i).next_in_chain = -2;	// mark empty
-        }
-
-        // Copy stuff to new_hash
-        if (table != NULL)
-        {
-            for (int i = 0, n = size_mask; i <= n; i++)
-            {
-                Entry * e = &entry(i);
-                if (e->isEmpty() == false && e->isTombstone() == false)
-                {
-                    // Insert old entry into new hash.
-                    new_hash.add(e->key, e->value);
-                    e->clear();	// placement delete of old element
-                }
-            }
-
-            // Delete our old data buffer.
-            free(table);
-        }
-
-        // Steal new_hash's data.
-        entry_count = new_hash.entry_count;
-        size_mask = new_hash.size_mask;
-        table = new_hash.table;
-        new_hash.entry_count = 0;
-        new_hash.size_mask = -1;
-        new_hash.table = NULL;
-    }
-
-    // Move the enumerator to the next valid element.
-    template<typename T, typename U, typename H, typename E>
-    void HashMap<T, U, H, E>::findNext(PseudoIndex & i) const {
-        while (i <= size_mask) {
-            const Entry & e = entry(i);
-            if (e.isEmpty() == false && e.isTombstone() == false) {
-                break;
-            }
-            i++;
-        }
-    }
-
-} // nv namespace
-
-#endif // NV_CORE_HASHMAP_INL
diff --git a/thirdparty/thekla_atlas/nvcore/Memory.cpp b/thirdparty/thekla_atlas/nvcore/Memory.cpp
deleted file mode 100644
index 302a2d84cb..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Memory.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "Memory.h"
-#include "Debug.h"
-#include "Utils.h"
-
-#include <stdlib.h>
-
-#ifdef NV_OS_LINUX
-#include <malloc.h>
-#endif
-
-#define USE_EFENCE 0
-
-#if USE_EFENCE
-extern "C" void *EF_malloc(size_t size);
-extern "C" void *EF_realloc(void * oldBuffer, size_t newSize);
-extern "C" void EF_free(void * address);
-#endif
-
-using namespace nv;
-
-#if NV_OVERRIDE_ALLOC
-
-void * malloc(size_t size)
-{
-#if USE_EFENCE
-    return EF_malloc(size);
-#else
-    return ::malloc(size);
-#endif
-}
-
-void * debug_malloc(size_t size, const char * file, int line)
-{
-    NV_UNUSED(file);
-    NV_UNUSED(line);
-#if USE_EFENCE
-    return EF_malloc(size);
-#else
-    return ::malloc(size);
-#endif
-}
-
-void free(void * ptr)
-{
-#if USE_EFENCE
-    return EF_free(const_cast<void *>(ptr));
-#else
-    ::free(const_cast<void *>(ptr));
-#endif
-}
-
-void * realloc(void * ptr, size_t size)
-{
-    nvDebugCheck(ptr != NULL || size != 0); // undefined realloc behavior.
-#if USE_EFENCE
-    return EF_realloc(ptr, size);
-#else
-    return ::realloc(ptr, size);
-#endif
-}
-
-
-/* No need to override this unless we want line info.
-void * operator new (size_t size) throw()
-{
-    return malloc(size);
-}
-
-void operator delete (void *p) throw()
-{
-    free(p);
-}
-
-void * operator new [] (size_t size) throw()
-{
-    return malloc(size);
-}
-
-void operator delete [] (void * p) throw()
-{
-    free(p);
-}
-*/
-
-#if 0 // Code from Apple:
-void* operator new(std::size_t sz) throw (std::bad_alloc)
-{
-        void *result = std::malloc (sz == 0 ? 1 : sz);
-        if (result == NULL)
-                throw std::bad_alloc();
-        gNewCounter++;
-        return result;
-}
-void operator delete(void* p) throw()
-{
-        if (p == NULL)
-                return;
-        std::free (p);
-        gDeleteCounter++;
-}
-
-/* These are the 'nothrow' versions of the above operators.
-   The system version will try to call a std::new_handler if they
-   fail, but your overriding versions are not required to do this.  */
-void* operator new(std::size_t sz, const std::nothrow_t&) throw()
-{
-        try {
-                void * result = ::operator new (sz);  // calls our overridden operator new
-                return result;
-        } catch (std::bad_alloc &) {
-          return NULL;
-        }
-}
-void operator delete(void* p, const std::nothrow_t&) throw()
-{
-        ::operator delete (p);
-}
-
-#endif // 0
-
-#endif // NV_OVERRIDE_ALLOC
-
-void * nv::aligned_malloc(size_t size, size_t alignment)
-{
-    // alignment must be a power of two, multiple of sizeof(void*)
-    nvDebugCheck(isPowerOfTwo(alignment));
-    nvDebugCheck((alignment & (sizeof(void*) - 1)) == 0);
-
-#if NV_OS_WIN32 || NV_OS_DURANGO
-    return _aligned_malloc(size, alignment);
-#elif NV_OS_DARWIN && !NV_OS_IOS
-    void * ptr = NULL;
-    posix_memalign(&ptr, alignment, size);
-    return ptr;
-#elif NV_OS_LINUX
-    return memalign(alignment, size);
-#else // NV_OS_ORBIS || NV_OS_IOS
-    // @@ IC: iOS appears to be 16 byte aligned, should we check alignment and assert if we request a higher alignment factor?
-    return ::malloc(size);
-#endif
-}
-
-void nv::aligned_free(void * ptr)
-{
-#if NV_OS_WIN32 || NV_OS_DURANGO
-    _aligned_free(ptr);
-#else
-    ::free(ptr);
-#endif
-}
-
diff --git a/thirdparty/thekla_atlas/nvcore/Memory.h b/thirdparty/thekla_atlas/nvcore/Memory.h
deleted file mode 100644
index 1f71b60947..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Memory.h
+++ /dev/null
@@ -1,72 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_MEMORY_H
-#define NV_CORE_MEMORY_H
-
-#include "nvcore.h"
-
-#include <stdlib.h> // malloc(), realloc() and free()
-#include <string.h> // memset
-//#include <stddef.h> // size_t
-
-//#include <new>	// new and delete
-
-#define TRACK_MEMORY_LEAKS 0
-#if TRACK_MEMORY_LEAKS
-#include <vld.h>
-#endif
-
-
-#if NV_CC_GNUC
-#   define NV_ALIGN_16 __attribute__ ((__aligned__ (16)))
-#else
-#   define NV_ALIGN_16 __declspec(align(16))
-#endif
-
-
-#define NV_OVERRIDE_ALLOC 0
-
-#if NV_OVERRIDE_ALLOC
-
-// Custom memory allocator
-extern "C" {
-    NVCORE_API void * malloc(size_t size);
-    NVCORE_API void * debug_malloc(size_t size, const char * file, int line);
-    NVCORE_API void free(void * ptr);
-    NVCORE_API void * realloc(void * ptr, size_t size);
-}
-
-/*
-#ifdef _DEBUG
-#define new new(__FILE__, __LINE__)
-#define malloc(i) debug_malloc(i, __FILE__, __LINE__)
-#endif
-*/
-
-#endif
-
-namespace nv {
-    NVCORE_API void * aligned_malloc(size_t size, size_t alignment);
-    NVCORE_API void aligned_free(void * );
-
-    // C++ helpers.
-    template <typename T> NV_FORCEINLINE T * malloc(size_t count) {
-        return (T *)::malloc(sizeof(T) * count);
-    }
-
-    template <typename T> NV_FORCEINLINE T * realloc(T * ptr, size_t count) {
-        return (T *)::realloc(ptr, sizeof(T) * count);
-    }
-
-    template <typename T> NV_FORCEINLINE void free(const T * ptr) {
-        ::free((void *)ptr);
-    }
-
-    template <typename T> NV_FORCEINLINE void zero(T & data) {
-        memset(&data, 0, sizeof(T));
-    }
-
-} // nv namespace
-
-#endif // NV_CORE_MEMORY_H
diff --git a/thirdparty/thekla_atlas/nvcore/Ptr.h b/thirdparty/thekla_atlas/nvcore/Ptr.h
deleted file mode 100644
index b43039274b..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Ptr.h
+++ /dev/null
@@ -1,322 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#ifndef NV_CORE_PTR_H
-#define NV_CORE_PTR_H
-
-#include "nvcore.h"
-#include "Debug.h"
-
-#include "RefCounted.h"
-
-namespace nv
-{
-    class WeakProxy;
-
-    /** Simple auto pointer template class.
-    *
-    * This is very similar to the standard auto_ptr class, but with some 
-    * additional limitations to make its use less error prone:
-    * - Copy constructor and assignment operator are disabled.
-    * - reset method is removed.
-    * 
-    * The semantics of the standard auto_ptr are not clear and change depending
-    * on the std implementation. For a discussion of the problems of auto_ptr read:
-    * http://www.awprofessional.com/content/images/020163371X/autoptrupdate\auto_ptr_update.html
-    */
-    template <class T>
-    class AutoPtr
-    {
-        NV_FORBID_COPY(AutoPtr);
-        NV_FORBID_HEAPALLOC();
-    public:
-
-        /// Ctor.
-        AutoPtr(T * p = NULL) : m_ptr(p) { }
-
-        template <class Q>
-        AutoPtr(Q * p) : m_ptr(static_cast<T *>(p)) { }
-
-        /// Dtor. Deletes owned pointer.
-        ~AutoPtr() {
-            delete m_ptr;
-            m_ptr = NULL;
-        }
-
-        /// Delete owned pointer and assign new one.
-        void operator=( T * p ) {
-            if (p != m_ptr)
-            {
-                delete m_ptr;
-                m_ptr = p;
-            }
-        }
-
-        template <class Q>
-        void operator=( Q * p ) {
-            if (p != m_ptr)
-            {
-                delete m_ptr;
-                m_ptr = static_cast<T *>(p);
-            }
-        }
-
-        /// Member access.
-        T * operator -> () const {
-            nvDebugCheck(m_ptr != NULL);
-            return m_ptr;
-        }
-
-        /// Get reference.
-        T & operator*() const {
-            nvDebugCheck(m_ptr != NULL);
-            return *m_ptr;
-        }
-
-        /// Get pointer.
-        T * ptr() const { return m_ptr; }
-
-        /// Relinquish ownership of the underlying pointer and returns that pointer.
-        T * release() {
-            T * tmp = m_ptr;
-            m_ptr = NULL;
-            return tmp;
-        }
-
-        /// Const pointer equal comparation.
-        friend bool operator == (const AutoPtr<T> & ap, const T * const p) {
-            return (ap.ptr() == p);
-        }
-
-        /// Const pointer nequal comparation.
-        friend bool operator != (const AutoPtr<T> & ap, const T * const p) {
-            return (ap.ptr() != p);
-        }
-
-        /// Const pointer equal comparation.
-        friend bool operator == (const T * const p, const AutoPtr<T> & ap) {
-            return (ap.ptr() == p);
-        }
-
-        /// Const pointer nequal comparation.
-        friend bool operator != (const T * const p, const AutoPtr<T> & ap) {
-            return (ap.ptr() != p);
-        }
-
-    private:
-        T * m_ptr;
-    };
-
-
-    /// Smart pointer template class.
-    template <class BaseClass>
-    class SmartPtr {
-    public:
-
-        // BaseClass must implement addRef() and release().
-        typedef SmartPtr<BaseClass> ThisType;
-
-        /// Default ctor.
-        SmartPtr() : m_ptr(NULL) 
-        {
-        }
-
-        /// Other type assignment.
-        template <class OtherBase>
-        SmartPtr( const SmartPtr<OtherBase> & tc )
-        {
-            m_ptr = static_cast<BaseClass *>( tc.ptr() );
-            if (m_ptr) {
-                m_ptr->addRef();
-            }
-        }
-
-        /// Copy ctor.
-        SmartPtr( const ThisType & bc )
-        {
-            m_ptr = bc.ptr();
-            if (m_ptr) {
-                m_ptr->addRef();
-            }
-        }
-
-        /// Copy cast ctor. SmartPtr(NULL) is valid.
-        explicit SmartPtr( BaseClass * bc )
-        {
-            m_ptr = bc;
-            if (m_ptr) {
-                m_ptr->addRef();
-            }
-        }
-
-        /// Dtor.
-        ~SmartPtr()
-        {
-            set(NULL);
-        }
-
-
-        /// -> operator.
-        BaseClass * operator -> () const
-        {
-            nvCheck( m_ptr != NULL );
-            return m_ptr;
-        }
-
-        /// * operator.
-        BaseClass & operator*() const
-        {
-            nvCheck( m_ptr != NULL );
-            return *m_ptr;
-        }
-
-        /// Get pointer.
-        BaseClass * ptr() const
-        {
-            return m_ptr;
-        }
-
-        /// Other type assignment.
-        template <class OtherBase>
-        void operator = ( const SmartPtr<OtherBase> & tc )
-        {
-            set( static_cast<BaseClass *>(tc.ptr()) );
-        }
-
-        /// This type assignment.
-        void operator = ( const ThisType & bc )
-        {
-            set( bc.ptr() );
-        }
-
-        /// Pointer assignment.
-        void operator = ( BaseClass * bc )
-        {
-            set( bc );
-        }
-
-
-        /// Other type equal comparation.
-        template <class OtherBase>
-        bool operator == ( const SmartPtr<OtherBase> & other ) const
-        {
-            return m_ptr == other.ptr();
-        }
-
-        /// This type equal comparation.
-        bool operator == ( const ThisType & bc ) const
-        {
-            return m_ptr == bc.ptr();
-        }
-
-        /// Const pointer equal comparation.
-        bool operator == ( const BaseClass * const bc ) const
-        {
-            return m_ptr == bc;
-        }
-
-        /// Other type not equal comparation.
-        template <class OtherBase>
-        bool operator != ( const SmartPtr<OtherBase> & other ) const
-        {
-            return m_ptr != other.ptr();
-        }
-
-        /// Other type not equal comparation.
-        bool operator != ( const ThisType & bc ) const
-        {
-            return m_ptr != bc.ptr();
-        }
-
-        /// Const pointer not equal comparation.
-        bool operator != (const BaseClass * const bc) const
-        {
-            return m_ptr != bc;
-        }
-
-        /// This type lower than comparation.
-        bool operator < (const ThisType & p) const
-        {
-            return m_ptr < p.ptr();
-        }
-
-        bool isValid() const {
-            return isValidPtr(m_ptr);
-        }
-
-    private:
-
-        // Set this pointer.
-        void set( BaseClass * p )
-        {
-            if (p) p->addRef();
-            if (m_ptr) m_ptr->release();
-            m_ptr = p;
-        }
-
-    private:
-
-        BaseClass * m_ptr;
-
-    };
-
-
-    /// Smart pointer template class.
-    template <class T>
-    class WeakPtr {
-    public:
-
-        WeakPtr() {}
-
-        WeakPtr(T * p)  { operator=(p); }
-        WeakPtr(const SmartPtr<T> & p) { operator=(p.ptr()); }
-
-        // Default constructor and assignment from weak_ptr<T> are OK.
-
-        void operator=(T * p)
-        {
-            if (p) {
-                m_proxy = p->getWeakProxy();
-                nvDebugCheck(m_proxy != NULL);
-                nvDebugCheck(m_proxy->ptr() == p);
-            }
-            else {
-                m_proxy = NULL;
-            }
-        }
-
-        void operator=(const SmartPtr<T> & ptr) { operator=(ptr.ptr()); }
-
-        bool operator==(const SmartPtr<T> & p) const { return ptr() == p.ptr(); }
-        bool operator!=(const SmartPtr<T> & p) const { return ptr() != p.ptr(); }
-
-        bool operator==(const WeakPtr<T> & p) const { return ptr() == p.ptr(); }
-        bool operator!=(const WeakPtr<T> & p) const { return ptr() != p.ptr(); }
-
-        bool operator==(T * p) const { return ptr() == p; }
-        bool operator!=(T * p) const { return ptr() != p; }
-
-        T * operator->() const
-        {
-            T * p = ptr();
-            nvDebugCheck(p != NULL);
-            return p;
-        }
-
-        T * ptr() const
-        {
-            if (m_proxy != NULL) {
-                return static_cast<T *>(m_proxy->ptr());
-            }
-            return NULL;
-        }
-
-    private:
-
-        mutable SmartPtr<WeakProxy> m_proxy;
-
-    };
-
-
-} // nv namespace
-
-#endif // NV_CORE_PTR_H
diff --git a/thirdparty/thekla_atlas/nvcore/RadixSort.cpp b/thirdparty/thekla_atlas/nvcore/RadixSort.cpp
deleted file mode 100644
index 3f44620c99..0000000000
--- a/thirdparty/thekla_atlas/nvcore/RadixSort.cpp
+++ /dev/null
@@ -1,285 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "RadixSort.h"
-
-#include "Utils.h"
-
-#include <string.h> // memset
-
-using namespace nv;
-
-static inline void FloatFlip(uint32 & f) {
-    //uint32 mask = -int32(f >> 31) | 0x80000000; // Michael Herf.
-    int32 mask = (int32(f) >> 31) | 0x80000000; // Warren Hunt, Manchor Ko.
-    f ^= mask;
-}
-
-static inline void IFloatFlip(uint32 & f) {
-    uint32 mask = ((f >> 31) - 1) | 0x80000000; // Michael Herf.
-    //uint32 mask = (int32(f ^ 0x80000000) >> 31) | 0x80000000; // Warren Hunt, Manchor Ko. @@ Correct, but fails in release on gcc-4.2.1
-    f ^= mask;
-}
-
-
-template<typename T> 
-void createHistograms(const T * buffer, uint count, uint * histogram)
-{
-    const uint bucketCount = sizeof(T); // (8 * sizeof(T)) / log2(radix)
-
-    // Init bucket pointers.
-    uint * h[bucketCount];
-    for (uint i = 0; i < bucketCount; i++) {
-#if NV_BIG_ENDIAN
-        h[sizeof(T)-1-i] = histogram + 256 * i;
-#else
-        h[i] = histogram + 256 * i;
-#endif
-    }
-
-    // Clear histograms.
-    memset(histogram, 0, 256 * bucketCount * sizeof(uint));
-
-    // @@ Add support for signed integers.
-
-    // Build histograms.
-    const uint8 * p = (const uint8 *)buffer; // @@ Does this break aliasing rules?
-    const uint8 * pe = p + count * sizeof(T);
-
-    while (p != pe) {
-        h[0][*p++]++, h[1][*p++]++, h[2][*p++]++, h[3][*p++]++;
-        if (bucketCount == 8) h[4][*p++]++, h[5][*p++]++, h[6][*p++]++, h[7][*p++]++;
-    }
-}
-
-/*
-template <>
-void createHistograms<float>(const float * buffer, uint count, uint * histogram)
-{
-    // Init bucket pointers.
-    uint32 * h[4];
-    for (uint i = 0; i < 4; i++) {
-#if NV_BIG_ENDIAN
-        h[3-i] = histogram + 256 * i;
-#else
-        h[i] = histogram + 256 * i;
-#endif
-    }
-
-    // Clear histograms.
-    memset(histogram, 0, 256 * 4 * sizeof(uint32));
-
-    // Build histograms.
-    for (uint i = 0; i < count; i++) {
-        uint32 fi = FloatFlip(buffer[i]);
-
-        h[0][fi & 0xFF]++;
-        h[1][(fi >> 8) & 0xFF]++;
-        h[2][(fi >> 16) & 0xFF]++;
-        h[3][fi >> 24]++;
-    }
-}
-*/
-
-RadixSort::RadixSort() : m_size(0), m_ranks(NULL), m_ranks2(NULL), m_validRanks(false)
-{
-}
-
-RadixSort::RadixSort(uint reserve_count) : m_size(0), m_ranks(NULL), m_ranks2(NULL), m_validRanks(false)
-{
-    checkResize(reserve_count);
-}
-
-RadixSort::~RadixSort()
-{
-    // Release everything
-    free(m_ranks2);
-    free(m_ranks);
-}
-
-
-void RadixSort::resize(uint count)
-{
-    m_ranks2 = realloc<uint>(m_ranks2, count);
-    m_ranks = realloc<uint>(m_ranks, count);
-}
-
-inline void RadixSort::checkResize(uint count)
-{
-    if (count != m_size)
-    {
-        if (count > m_size) resize(count);
-        m_size = count;
-        m_validRanks = false;
-    }
-}
-
-template <typename T> inline void RadixSort::insertionSort(const T * input, uint count)
-{
-    if (!m_validRanks) {
-        /*for (uint i = 0; i < count; i++) {
-            m_ranks[i] = i;
-        }*/
-
-        m_ranks[0] = 0;
-        for (uint i = 1; i != count; ++i)
-        {
-            int rank = m_ranks[i] = i;
-
-            uint j = i;
-            while (j != 0 && input[rank] < input[m_ranks[j-1]])
-            {
-                m_ranks[j] = m_ranks[j-1];
-                --j;
-            }
-            if (i != j)
-            {
-                m_ranks[j] = rank;
-            }
-        }
-
-        m_validRanks = true;
-    }
-    else {
-        for (uint i = 1; i != count; ++i)
-        {
-            int rank = m_ranks[i];
-
-            uint j = i;
-            while (j != 0 && input[rank] < input[m_ranks[j-1]])
-            {
-                m_ranks[j] = m_ranks[j-1];
-                --j;
-            }
-            if (i != j)
-            {
-                m_ranks[j] = rank;
-            }
-        }
-    }
-}
-
-template <typename T> inline void RadixSort::radixSort(const T * input, uint count)
-{
-    const uint P = sizeof(T); // pass count
-
-    // Allocate histograms & offsets on the stack
-    uint histogram[256 * P];
-    uint * link[256];
-
-    createHistograms(input, count, histogram);
-
-    // Radix sort, j is the pass number (0=LSB, P=MSB)
-    for (uint j = 0; j < P; j++)
-    {
-        // Pointer to this bucket.
-        const uint * h = &histogram[j * 256];
-
-        const uint8 * inputBytes = (const uint8*)input; // @@ Is this aliasing legal?
-
-#if NV_BIG_ENDIAN
-        inputBytes += P - 1 - j;
-#else
-        inputBytes += j;
-#endif
-
-        if (h[inputBytes[0]] == count) {
-            // Skip this pass, all values are the same.
-            continue;
-        }
-
-        // Create offsets
-        link[0] = m_ranks2;
-        for (uint i = 1; i < 256; i++) link[i] = link[i-1] + h[i-1];
-
-        // Perform Radix Sort
-        if (!m_validRanks)
-        {
-            for (uint i = 0; i < count; i++)
-            {
-                *link[inputBytes[i*P]]++ = i;
-            }
-            m_validRanks = true;
-        }
-        else
-        {
-            for (uint i = 0; i < count; i++)
-            {
-                const uint idx = m_ranks[i];
-                *link[inputBytes[idx*P]]++ = idx;
-            }
-        }
-
-        // Swap pointers for next pass. Valid indices - the most recent ones - are in m_ranks after the swap.
-        swap(m_ranks, m_ranks2);
-    }
-
-    // All values were equal, generate linear ranks.
-    if (!m_validRanks)
-    {
-        for (uint i = 0; i < count; i++)
-        {
-            m_ranks[i] = i;
-        }
-        m_validRanks = true;
-    }
-}
-
-
-RadixSort & RadixSort::sort(const uint32 * input, uint count)
-{
-    if (input == NULL || count == 0) return *this;
-
-    // Resize lists if needed
-    checkResize(count);
-
-    if (count < 32) {
-        insertionSort(input, count);
-    }
-    else {
-        radixSort<uint32>(input, count);
-    }
-    return *this;
-}
-
-
-RadixSort & RadixSort::sort(const uint64 * input, uint count)
-{
-    if (input == NULL || count == 0) return *this;
-
-    // Resize lists if needed
-    checkResize(count);
-
-    if (count < 64) {
-        insertionSort(input, count);
-    }
-    else {
-        radixSort(input, count);
-    }
-    return *this;
-}
-
-RadixSort& RadixSort::sort(const float * input, uint count)
-{
-    if (input == NULL || count == 0) return *this;
-
-    // Resize lists if needed
-    checkResize(count);
-
-    if (count < 32) {
-        insertionSort(input, count);
-    }
-    else {
-        // @@ Avoid touching the input multiple times.
-        for (uint i = 0; i < count; i++) {
-            FloatFlip((uint32 &)input[i]);
-        }
-
-        radixSort<uint32>((const uint32 *)input, count);
-
-        for (uint i = 0; i < count; i++) {
-            IFloatFlip((uint32 &)input[i]);
-        }
-    }
-
-    return *this;
-}
diff --git a/thirdparty/thekla_atlas/nvcore/RadixSort.h b/thirdparty/thekla_atlas/nvcore/RadixSort.h
deleted file mode 100644
index 82325ebb24..0000000000
--- a/thirdparty/thekla_atlas/nvcore/RadixSort.h
+++ /dev/null
@@ -1,75 +0,0 @@
-#pragma once
-#ifndef NV_CORE_RADIXSORT_H
-#define NV_CORE_RADIXSORT_H
-
-// Based on Pierre Terdiman's and Michael Herf's source code.
-// http://www.codercorner.com/RadixSortRevisited.htm
-// http://www.stereopsis.com/radix.html
-
-#include "nvcore.h"
-#include "Array.h"
-
-namespace nv
-{
-
-    class NVCORE_CLASS RadixSort
-    {
-        NV_FORBID_COPY(RadixSort);
-    public:
-        // Constructor/Destructor
-        RadixSort();
-        RadixSort(uint reserve_count);
-        ~RadixSort();
-
-        // Invalidate ranks.
-        RadixSort & reset() { m_validRanks = false; return *this; }
-
-        // Sorting methods.
-        RadixSort & sort(const uint32 * input, uint count);
-        RadixSort & sort(const uint64 * input, uint count);
-        RadixSort & sort(const float * input, uint count);
-
-        // Helpers.
-        RadixSort & sort(const Array<uint32> & input);
-        RadixSort & sort(const Array<uint64> & input);
-        RadixSort & sort(const Array<float> & input);
-
-        // Access to results. m_ranks is a list of indices in sorted order, i.e. in the order you may further process your data
-        inline const uint * ranks() const { nvDebugCheck(m_validRanks); return m_ranks; }
-        inline uint * ranks() { nvDebugCheck(m_validRanks); return m_ranks; }
-        inline uint rank(uint i) const { nvDebugCheck(m_validRanks); return m_ranks[i]; }
-
-        // query whether the sort has been performed
-        inline bool valid() const { return m_validRanks; }
-
-    private:
-        uint m_size;
-        uint * m_ranks;
-        uint * m_ranks2;
-        bool m_validRanks;
-
-        // Internal methods
-        template <typename T> void insertionSort(const T * input, uint count);
-        template <typename T> void radixSort(const T * input, uint count);
-
-        void checkResize(uint nb);
-        void resize(uint nb);
-    };
-
-    inline RadixSort & RadixSort::sort(const Array<uint32> & input) {
-        return sort(input.buffer(), input.count());
-    }
-
-    inline RadixSort & RadixSort::sort(const Array<uint64> & input) {
-        return sort(input.buffer(), input.count());
-    }
-
-    inline RadixSort & RadixSort::sort(const Array<float> & input) {
-        return sort(input.buffer(), input.count());
-    }
-
-} // nv namespace
-
-
-
-#endif // NV_CORE_RADIXSORT_H
diff --git a/thirdparty/thekla_atlas/nvcore/RefCounted.h b/thirdparty/thekla_atlas/nvcore/RefCounted.h
deleted file mode 100644
index b8d68edee3..0000000000
--- a/thirdparty/thekla_atlas/nvcore/RefCounted.h
+++ /dev/null
@@ -1,149 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#ifndef NV_CORE_REFCOUNTED_H
-#define NV_CORE_REFCOUNTED_H
-
-#include "nvcore.h"
-#include "Debug.h"
-
-#define NV_DECLARE_PTR(Class) \
-    template <class T> class SmartPtr; \
-    typedef SmartPtr<class Class> Class ## Ptr; \
-    typedef SmartPtr<const class Class> Class ## ConstPtr
-
-
-namespace nv
-{
-    /// Weak proxy.
-    class WeakProxy
-    {
-        NV_FORBID_COPY(WeakProxy);
-    public:
-	    /// Ctor.
-	    WeakProxy(void * ptr) : m_count(0), m_ptr(ptr) { }
-
-        /// Dtor.
-        ~WeakProxy()
-        {
-            nvCheck( m_count == 0 );
-        }
-
-        /// Increase reference count.
-        uint addRef() const
-        {
-            m_count++;
-            return m_count;
-        }
-
-        /// Decrease reference count and remove when 0.
-        uint release() const
-        {
-            nvCheck( m_count > 0 );
-
-            m_count--;
-            if( m_count == 0 ) {
-                delete this;
-                return 0;
-            }
-            return m_count;
-        }
-
-	    /// WeakPtr's call this to determine if their pointer is valid or not.
-	    bool isAlive() const {
-		    return m_ptr != NULL;
-	    }
-
-	    /// Only the actual object should call this.
-	    void notifyObjectDied() {
-		    m_ptr = NULL;
-	    }
-
-        /// Return proxy pointer.
-        void * ptr() const {
-            return m_ptr;
-        }
-
-    private:
-        mutable int m_count;
-	    void * m_ptr;
-    };
-
-
-    /// Reference counted base class to be used with SmartPtr and WeakPtr.
-    class RefCounted
-    {
-        NV_FORBID_COPY(RefCounted);
-    public:
-
-        /// Ctor.
-        RefCounted() : m_count(0), m_weak_proxy(NULL)
-        {
-        }
-
-        /// Virtual dtor.
-        virtual ~RefCounted()
-        {
-            nvCheck( m_count == 0 );
-            releaseWeakProxy();
-        }
-
-
-        /// Increase reference count.
-        uint addRef() const
-        {
-            m_count++;
-            return m_count;
-        }
-
-
-        /// Decrease reference count and remove when 0.
-        uint release() const
-        {
-            nvCheck( m_count > 0 );
-
-            m_count--;
-            if( m_count == 0 ) {
-                delete this;
-                return 0;
-            }
-            return m_count;
-        }
-
-        /// Get weak proxy.
-        WeakProxy * getWeakProxy() const
-        {
-            if (m_weak_proxy == NULL) {
-                m_weak_proxy = new WeakProxy((void *)this);
-                m_weak_proxy->addRef();
-            }
-            return m_weak_proxy;
-        }
-
-        /// Release the weak proxy.	
-        void releaseWeakProxy() const
-        {
-            if (m_weak_proxy != NULL) {
-                m_weak_proxy->notifyObjectDied();
-                m_weak_proxy->release();
-                m_weak_proxy = NULL;
-            }
-        }
-
-        /// Get reference count.
-        int refCount() const
-        {
-            return m_count;
-        }
-
-
-    private:
-
-        mutable int m_count;
-        mutable WeakProxy * m_weak_proxy;
-
-    };
-
-} // nv namespace
-
-
-#endif // NV_CORE_REFCOUNTED_H
diff --git a/thirdparty/thekla_atlas/nvcore/StdStream.h b/thirdparty/thekla_atlas/nvcore/StdStream.h
deleted file mode 100644
index f65d6dab59..0000000000
--- a/thirdparty/thekla_atlas/nvcore/StdStream.h
+++ /dev/null
@@ -1,474 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-//#pragma once
-//#ifndef NV_CORE_STDSTREAM_H
-//#define NV_CORE_STDSTREAM_H
-
-#include "nvcore.h"
-#include "Stream.h"
-#include "Array.h"
-
-#include <stdio.h> // fopen
-#include <string.h> // memcpy
-
-namespace nv
-{
-
-    // Portable version of fopen.
-    inline FILE * fileOpen(const char * fileName, const char * mode)
-    {
-        nvCheck(fileName != NULL);
-#if NV_CC_MSVC && _MSC_VER >= 1400
-        FILE * fp;
-        if (fopen_s(&fp, fileName, mode) == 0) {
-            return fp;
-        }
-        return NULL;
-#else
-        return fopen(fileName, mode);
-#endif
-    }
-
-
-    /// Base stdio stream.
-    class NVCORE_CLASS StdStream : public Stream
-    {
-        NV_FORBID_COPY(StdStream);
-    public:
-
-        /// Ctor.
-        StdStream( FILE * fp, bool autoclose ) : m_fp(fp), m_autoclose(autoclose) { }
-
-        /// Dtor. 
-        virtual ~StdStream()
-        {
-            if( m_fp != NULL && m_autoclose ) {
-#if NV_OS_WIN32
-                _fclose_nolock( m_fp );
-#else
-                fclose( m_fp );
-#endif
-            }
-        }
-
-
-        /** @name Stream implementation. */
-        //@{
-        virtual void seek( uint pos )
-        {
-            nvDebugCheck(m_fp != NULL);
-            nvDebugCheck(pos <= size());
-#if NV_OS_WIN32
-            _fseek_nolock(m_fp, pos, SEEK_SET);
-#else
-            fseek(m_fp, pos, SEEK_SET);
-#endif
-        }
-
-        virtual uint tell() const
-        {
-            nvDebugCheck(m_fp != NULL);
-#if NV_OS_WIN32
-            return _ftell_nolock(m_fp);
-#else
-            return (uint)ftell(m_fp);
-#endif
-        }
-
-        virtual uint size() const
-        {
-            nvDebugCheck(m_fp != NULL);
-#if NV_OS_WIN32
-            uint pos = _ftell_nolock(m_fp);
-            _fseek_nolock(m_fp, 0, SEEK_END);
-            uint end = _ftell_nolock(m_fp);
-            _fseek_nolock(m_fp, pos, SEEK_SET);
-#else
-            uint pos = (uint)ftell(m_fp);
-            fseek(m_fp, 0, SEEK_END);
-            uint end = (uint)ftell(m_fp);
-            fseek(m_fp, pos, SEEK_SET);
-#endif
-            return end;
-        }
-
-        virtual bool isError() const
-        {
-            return m_fp == NULL || ferror( m_fp ) != 0;
-        }
-
-        virtual void clearError()
-        {
-            nvDebugCheck(m_fp != NULL);
-            clearerr(m_fp);
-        }
-
-        // @@ The original implementation uses feof, which only returns true when we attempt to read *past* the end of the stream. 
-        // That is, if we read the last byte of a file, then isAtEnd would still return false, even though the stream pointer is at the file end. This is not the intent and was inconsistent with the implementation of the MemoryStream, a better 
-        // implementation uses use ftell and fseek to determine our location within the file.
-        virtual bool isAtEnd() const
-        {
-            if (m_fp == NULL) return true;
-            //nvDebugCheck(m_fp != NULL);
-            //return feof( m_fp ) != 0;
-#if NV_OS_WIN32
-            uint pos = _ftell_nolock(m_fp);
-            _fseek_nolock(m_fp, 0, SEEK_END);
-            uint end = _ftell_nolock(m_fp);
-            _fseek_nolock(m_fp, pos, SEEK_SET);
-#else
-            uint pos = (uint)ftell(m_fp);
-            fseek(m_fp, 0, SEEK_END);
-            uint end = (uint)ftell(m_fp);
-            fseek(m_fp, pos, SEEK_SET);
-#endif
-            return pos == end;
-        }
-
-        /// Always true.
-        virtual bool isSeekable() const { return true; }
-        //@}
-
-    protected:
-
-        FILE * m_fp;
-        bool m_autoclose;
-
-    };
-
-
-    /// Standard output stream.
-    class NVCORE_CLASS StdOutputStream : public StdStream
-    {
-        NV_FORBID_COPY(StdOutputStream);
-    public:
-
-        /// Construct stream by file name.
-        StdOutputStream( const char * name ) : StdStream(fileOpen(name, "wb"), /*autoclose=*/true) { }
-
-        /// Construct stream by file handle.
-        StdOutputStream( FILE * fp, bool autoclose ) : StdStream(fp, autoclose)
-        {
-        }
-
-        /** @name Stream implementation. */
-        //@{
-        /// Write data.
-        virtual uint serialize( void * data, uint len )
-        {
-            nvDebugCheck(data != NULL);
-            nvDebugCheck(m_fp != NULL);
-#if NV_OS_WIN32
-            return (uint)_fwrite_nolock(data, 1, len, m_fp);
-#elif NV_OS_LINUX
-            return (uint)fwrite_unlocked(data, 1, len, m_fp);
-#elif NV_OS_DARWIN
-            // @@ No error checking, always returns len.
-            for (uint i = 0; i < len; i++) {
-                putc_unlocked(((char *)data)[i], m_fp);
-            }
-            return len;
-#else
-            return (uint)fwrite(data, 1, len, m_fp);
-#endif
-        }
-
-        virtual bool isLoading() const
-        {
-            return false;
-        }
-
-        virtual bool isSaving() const
-        {
-            return true;
-        }
-        //@}
-
-    };
-
-
-    /// Standard input stream.
-    class NVCORE_CLASS StdInputStream : public StdStream
-    {
-        NV_FORBID_COPY(StdInputStream);
-    public:
-
-        /// Construct stream by file name.
-        StdInputStream( const char * name ) : StdStream(fileOpen(name, "rb"), /*autoclose=*/true) { }
-
-        /// Construct stream by file handle.
-        StdInputStream( FILE * fp, bool autoclose=true ) : StdStream(fp, autoclose)
-        {
-        }
-
-        /** @name Stream implementation. */
-        //@{
-        /// Read data.
-        virtual uint serialize( void * data, uint len )
-        {
-            nvDebugCheck(data != NULL);
-            nvDebugCheck(m_fp != NULL);
-#if NV_OS_WIN32
-            return (uint)_fread_nolock(data, 1, len, m_fp);
-#elif NV_OS_LINUX
-            return (uint)fread_unlocked(data, 1, len, m_fp);
-#elif NV_OS_DARWIN
-            // This is rather lame. Not sure if it's faster than the locked version.
-            for (uint i = 0; i < len; i++) {
-                ((char *)data)[i] = getc_unlocked(m_fp);
-                if (feof_unlocked(m_fp) != 0) {
-                    return i;
-                }
-            }
-            return len;
-#else
-            return (uint)fread(data, 1, len, m_fp);
-#endif
-            
-        }
-
-        virtual bool isLoading() const
-        {
-            return true;
-        }
-
-        virtual bool isSaving() const
-        {
-            return false;
-        }
-        //@}
-    };
-
-
-
-    /// Memory input stream.
-    class NVCORE_CLASS MemoryInputStream : public Stream
-    {
-        NV_FORBID_COPY(MemoryInputStream);
-    public:
-
-        /// Ctor.
-        MemoryInputStream( const uint8 * mem, uint size ) : m_mem(mem), m_ptr(mem), m_size(size) { }
-
-        /** @name Stream implementation. */
-        //@{
-        /// Read data.
-        virtual uint serialize( void * data, uint len )
-        {
-            nvDebugCheck(data != NULL);
-            nvDebugCheck(!isError());
-
-            uint left = m_size - tell();
-            if (len > left) len = left;
-
-            memcpy( data, m_ptr, len );
-            m_ptr += len;
-
-            return len;
-        }
-
-        virtual void seek( uint pos )
-        {
-            nvDebugCheck(!isError());
-            m_ptr = m_mem + pos;
-            nvDebugCheck(!isError());
-        }
-
-        virtual uint tell() const
-        {
-            nvDebugCheck(m_ptr >= m_mem);
-            return uint(m_ptr - m_mem);
-        }
-
-        virtual uint size() const
-        {
-            return m_size;
-        }
-
-        virtual bool isError() const
-        {
-            return m_mem == NULL || m_ptr > m_mem + m_size || m_ptr < m_mem;
-        }
-
-        virtual void clearError()
-        {
-            // Nothing to do.
-        }
-
-        virtual bool isAtEnd() const
-        {
-            return m_ptr == m_mem + m_size;
-        }
-
-        /// Always true.
-        virtual bool isSeekable() const
-        {
-            return true;
-        }
-
-        virtual bool isLoading() const
-        {
-            return true;
-        }
-
-        virtual bool isSaving() const
-        {
-            return false;
-        }
-        //@}
-
-        const uint8 * ptr() const { return m_ptr; }
-
-
-    private:
-
-        const uint8 * m_mem;
-        const uint8 * m_ptr;
-        uint m_size;
-
-    };
-
-
-    /// Buffer output stream.
-    class NVCORE_CLASS BufferOutputStream : public Stream
-    {
-        NV_FORBID_COPY(BufferOutputStream);
-    public:
-
-        BufferOutputStream(Array<uint8> & buffer) : m_buffer(buffer) { }
-
-        virtual uint serialize( void * data, uint len )
-        {
-            nvDebugCheck(data != NULL);
-            m_buffer.append((uint8 *)data, len);
-            return len;
-        }
-
-        virtual void seek( uint /*pos*/ ) { /*Not implemented*/ }
-        virtual uint tell() const { return m_buffer.size(); }
-        virtual uint size() const { return m_buffer.size(); }
-
-        virtual bool isError() const { return false; }
-        virtual void clearError() {}
-
-        virtual bool isAtEnd() const { return true; }
-        virtual bool isSeekable() const { return false; }
-        virtual bool isLoading() const { return false; }
-        virtual bool isSaving() const { return true; }
-
-    private:
-        Array<uint8> & m_buffer;
-    };
-
-
-    /// Protected input stream.
-    class NVCORE_CLASS ProtectedStream : public Stream
-    {
-        NV_FORBID_COPY(ProtectedStream);
-    public:
-
-        /// Ctor.
-        ProtectedStream( Stream & s ) : m_s(&s), m_autodelete(false)
-        { 
-        }
-
-        /// Ctor.
-        ProtectedStream( Stream * s, bool autodelete = true ) : 
-        m_s(s), m_autodelete(autodelete) 
-        {
-            nvDebugCheck(m_s != NULL);
-        }
-
-        /// Dtor.
-        virtual ~ProtectedStream()
-        {
-            if( m_autodelete ) {
-                delete m_s;
-            }
-        }
-
-        /** @name Stream implementation. */
-        //@{
-        /// Read data.
-        virtual uint serialize( void * data, uint len )
-        {
-            nvDebugCheck(data != NULL);
-            len = m_s->serialize( data, len );
-
-            if( m_s->isError() ) {
-#if NV_OS_ORBIS
-                //SBtodoORBIS disabled (no exceptions)
-#else
-                throw;
-#endif
-            }
-
-            return len;
-        }
-
-        virtual void seek( uint pos )
-        {
-            m_s->seek( pos );
-
-            if( m_s->isError() ) {
-#if NV_OS_ORBIS
-                //SBtodoORBIS disabled (no exceptions)
-#else
-                throw;
-#endif
-            }
-        }
-
-        virtual uint tell() const
-        {
-            return m_s->tell();
-        }
-
-        virtual uint size() const
-        {
-            return m_s->size();
-        }
-
-        virtual bool isError() const
-        {
-            return m_s->isError();
-        }
-
-        virtual void clearError()
-        {
-            m_s->clearError();
-        }
-
-        virtual bool isAtEnd() const
-        {
-            return m_s->isAtEnd();
-        }
-
-        virtual bool isSeekable() const
-        {
-            return m_s->isSeekable();
-        }
-
-        virtual bool isLoading() const
-        {
-            return m_s->isLoading();
-        }
-
-        virtual bool isSaving() const
-        {
-            return m_s->isSaving();
-        }
-        //@}
-
-
-    private:
-
-        Stream * const m_s;
-        bool const m_autodelete;
-
-    };
-
-} // nv namespace
-
-
-//#endif // NV_CORE_STDSTREAM_H
diff --git a/thirdparty/thekla_atlas/nvcore/StrLib.cpp b/thirdparty/thekla_atlas/nvcore/StrLib.cpp
deleted file mode 100644
index 7ec6c70136..0000000000
--- a/thirdparty/thekla_atlas/nvcore/StrLib.cpp
+++ /dev/null
@@ -1,796 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "StrLib.h"
-
-#include "Memory.h"
-#include "Utils.h" // swap
-
-#include <math.h>   // log
-#include <stdio.h>  // vsnprintf
-#include <string.h> // strlen, strcmp, etc.
-
-#if NV_CC_MSVC
-#include <stdarg.h> // vsnprintf
-#endif
-
-using namespace nv;
-
-namespace 
-{
-    static char * strAlloc(uint size)
-    {
-        return malloc<char>(size);
-    }
-
-    static char * strReAlloc(char * str, uint size)
-    {
-        return realloc<char>(str, size);
-    }
-
-    static void strFree(const char * str)
-    {
-        return free<char>(str);
-    }
-
-    /*static char * strDup( const char * str )
-    {
-        nvDebugCheck( str != NULL );
-        uint len = uint(strlen( str ) + 1);
-        char * dup = strAlloc( len );
-        memcpy( dup, str, len );
-        return dup;
-    }*/
-
-    // helper function for integer to string conversion.
-    static char * i2a( uint i, char *a, uint r )
-    {
-        if( i / r > 0 ) {
-            a = i2a( i / r, a, r );
-        }
-        *a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[i % r];
-        return a + 1;
-    }
-
-    // Locale independent functions.
-    static inline char toUpper( char c ) {
-        return (c<'a' || c>'z') ? (c) : (c+'A'-'a');
-    }
-    static inline char toLower( char c ) {
-        return (c<'A' || c>'Z') ? (c) : (c+'a'-'A');
-    }
-    static inline bool isAlpha( char c ) {
-        return (c>='a' && c<='z') || (c>='A' && c<='Z');
-    }
-    static inline bool isDigit( char c ) {
-        return c>='0' && c<='9';
-    }
-    static inline bool isAlnum( char c ) {
-        return (c>='a' && c<='z') || (c>='A' && c<='Z') || (c>='0' && c<='9');
-    }
-
-}
-
-uint nv::strLen(const char * str)
-{
-    nvDebugCheck(str != NULL);
-    return U32(strlen(str));
-}
-
-int nv::strDiff(const char * s1, const char * s2)
-{
-    nvDebugCheck(s1 != NULL);
-    nvDebugCheck(s2 != NULL);
-    return strcmp(s1, s2);
-}
-
-int nv::strCaseDiff(const char * s1, const char * s2)
-{
-    nvDebugCheck(s1 != NULL);
-    nvDebugCheck(s1 != NULL);
-#if NV_CC_MSVC
-    return _stricmp(s1, s2);
-#else
-    return strcasecmp(s1, s2);
-#endif
-}
-
-bool nv::strEqual(const char * s1, const char * s2)
-{
-    if (s1 == s2) return true;
-    if (s1 == NULL || s2 == NULL) return false;
-    return strcmp(s1, s2) == 0;
-}
-
-bool nv::strCaseEqual(const char * s1, const char * s2)
-{
-    if (s1 == s2) return true;
-    if (s1 == NULL || s2 == NULL) return false;
-    return strCaseDiff(s1, s2) == 0;
-}
-
-bool nv::strBeginsWith(const char * str, const char * prefix)
-{
-    //return strstr(str, prefix) == dst;
-    return strncmp(str, prefix, strlen(prefix)) == 0;
-}
-
-bool nv::strEndsWith(const char * str, const char * suffix)
-{
-    uint ml = strLen(str);
-    uint sl = strLen(suffix);
-    if (ml < sl) return false;
-    return strncmp(str + ml - sl, suffix, sl) == 0;
-}
-
-// @@ Add asserts to detect overlap between dst and src?
-void nv::strCpy(char * dst, uint size, const char * src)
-{
-    nvDebugCheck(dst != NULL);
-    nvDebugCheck(src != NULL);
-#if NV_CC_MSVC && _MSC_VER >= 1400
-    strcpy_s(dst, size, src);
-#else
-    NV_UNUSED(size);
-    strcpy(dst, src);
-#endif
-}
-
-void nv::strCpy(char * dst, uint size, const char * src, uint len)
-{
-    nvDebugCheck(dst != NULL);
-    nvDebugCheck(src != NULL);
-#if NV_CC_MSVC && _MSC_VER >= 1400
-    strncpy_s(dst, size, src, len);
-#else
-    int n = min(len+1, size);
-    strncpy(dst, src, n);
-    dst[n-1] = '\0';
-#endif
-}
-
-void nv::strCat(char * dst, uint size, const char * src)
-{
-    nvDebugCheck(dst != NULL);
-    nvDebugCheck(src != NULL);
-#if NV_CC_MSVC && _MSC_VER >= 1400
-    strcat_s(dst, size, src);
-#else
-    NV_UNUSED(size);
-    strcat(dst, src);
-#endif
-}
-
-NVCORE_API const char * nv::strSkipWhiteSpace(const char * str)
-{
-    nvDebugCheck(str != NULL);
-    while (*str == ' ') str++;
-    return str;
-}
-
-NVCORE_API char * nv::strSkipWhiteSpace(char * str)
-{
-    nvDebugCheck(str != NULL);
-    while (*str == ' ') str++;
-    return str;
-}
-
-
-/** Pattern matching routine. I don't remember where did I get this. */
-bool nv::strMatch(const char * str, const char * pat)
-{
-    nvDebugCheck(str != NULL);
-    nvDebugCheck(pat != NULL);
-
-    char c2;
-
-    while (true) {
-        if (*pat==0) {
-            if (*str==0) return true;
-            else         return false;
-        }
-        if ((*str==0) && (*pat!='*')) return false;
-        if (*pat=='*') {
-            pat++;
-            if (*pat==0) return true;
-            while (true) {
-                if (strMatch(str, pat)) return true;
-                if (*str==0) return false;
-                str++;
-            }
-        }
-        if (*pat=='?') goto match;
-        if (*pat=='[') {
-            pat++;
-            while (true) {
-                if ((*pat==']') || (*pat==0)) return false;
-                if (*pat==*str) break;
-                if (pat[1] == '-') {
-                    c2 = pat[2];
-                    if (c2==0) return false;
-                    if ((*pat<=*str) && (c2>=*str)) break;
-                    if ((*pat>=*str) && (c2<=*str)) break;
-                    pat+=2;
-                }
-                pat++;
-            }
-            while (*pat!=']') {
-                if (*pat==0) {
-                    pat--;
-                    break;
-                }
-                pat++;
-            }
-            goto match;
-        }
-
-        if (*pat == NV_PATH_SEPARATOR) {
-            pat++;
-            if (*pat==0) return false;
-        }
-        if (*pat!=*str) return false;
-
-match:
-        pat++;
-        str++;
-    }
-}
-
-bool nv::isNumber(const char * str) {
-    while(*str != '\0') {
-        if (!isDigit(*str)) return false;
-        str++;
-    }
-    return true;
-}
-
-
-/** Empty string. */
-StringBuilder::StringBuilder() : m_size(0), m_str(NULL)
-{
-}
-
-/** Preallocate space. */
-StringBuilder::StringBuilder( uint size_hint ) : m_size(size_hint)
-{
-    nvDebugCheck(m_size > 0);
-    m_str = strAlloc(m_size);
-    *m_str = '\0';
-}
-
-/** Copy ctor. */
-StringBuilder::StringBuilder( const StringBuilder & s ) : m_size(0), m_str(NULL)
-{
-    copy(s);
-}
-
-/** Copy string. */
-StringBuilder::StringBuilder(const char * s) : m_size(0), m_str(NULL)
-{
-    if (s != NULL) {
-        copy(s);
-    }
-}
-
-/** Copy string. */
-StringBuilder::StringBuilder(const char * s, uint len) : m_size(0), m_str(NULL)
-{
-    copy(s, len);
-}
-
-/** Delete the string. */
-StringBuilder::~StringBuilder()
-{
-    strFree(m_str);
-}
-
-
-/** Format a string safely. */
-StringBuilder & StringBuilder::format( const char * fmt, ... )
-{
-    nvDebugCheck(fmt != NULL);
-    va_list arg;
-    va_start( arg, fmt );
-
-    formatList( fmt, arg );
-
-    va_end( arg );
-
-    return *this;
-}
-
-
-/** Format a string safely. */
-StringBuilder & StringBuilder::formatList( const char * fmt, va_list arg )
-{
-    nvDebugCheck(fmt != NULL);
-
-    if (m_size == 0) {
-        m_size = 64;
-        m_str = strAlloc( m_size );
-    }
-
-    va_list tmp;
-    va_copy(tmp, arg);
-#if NV_CC_MSVC && _MSC_VER >= 1400
-    int n = vsnprintf_s(m_str, m_size, _TRUNCATE, fmt, tmp);
-#else
-    int n = vsnprintf(m_str, m_size, fmt, tmp);
-#endif
-    va_end(tmp);
-
-    while( n < 0 || n >= int(m_size) ) {
-        if( n > -1 ) {
-            m_size = n + 1;
-        }
-        else {
-            m_size *= 2;
-        }
-
-        m_str = strReAlloc(m_str, m_size);
-
-        va_copy(tmp, arg);
-#if NV_CC_MSVC && _MSC_VER >= 1400
-        n = vsnprintf_s(m_str, m_size, _TRUNCATE, fmt, tmp);
-#else
-        n = vsnprintf(m_str, m_size, fmt, tmp);
-#endif
-        va_end(tmp);
-    }
-
-    nvDebugCheck(n < int(m_size));
-
-    // Make sure it's null terminated.
-    nvDebugCheck(m_str[n] == '\0');
-    //str[n] = '\0';
-
-    return *this;
-}
-
-
-// Append a character.
-StringBuilder & StringBuilder::append( char c )
-{
-    return append(&c, 1);
-}
-
-// Append a string.
-StringBuilder & StringBuilder::append( const char * s )
-{
-    return append(s, U32(strlen( s )));
-}
-
-// Append a string.
-StringBuilder & StringBuilder::append(const char * s, uint len)
-{
-    nvDebugCheck(s != NULL);
-
-    uint offset = length();
-    const uint size = offset + len + 1;
-    reserve(size);
-    strCpy(m_str + offset, len + 1, s, len);
-
-    return *this;
-}
-
-StringBuilder & StringBuilder::append(const StringBuilder & str)
-{
-    return append(str.m_str, str.length());
-}
-
-
-/** Append a formatted string. */
-StringBuilder & StringBuilder::appendFormat( const char * fmt, ... )
-{
-    nvDebugCheck( fmt != NULL );
-
-    va_list arg;
-    va_start( arg, fmt );
-
-    appendFormatList( fmt, arg );
-
-    va_end( arg );
-
-    return *this;
-}
-
-
-/** Append a formatted string. */
-StringBuilder & StringBuilder::appendFormatList( const char * fmt, va_list arg )
-{
-    nvDebugCheck( fmt != NULL );
-
-    va_list tmp;
-    va_copy(tmp, arg);
-
-    if (m_size == 0) {
-        formatList(fmt, arg);
-    }
-    else {
-        StringBuilder tmp_str;
-        tmp_str.formatList( fmt, tmp );
-        append( tmp_str.str() );
-    }
-
-    va_end(tmp);
-
-    return *this;
-}
-
-// Append n spaces.
-StringBuilder & StringBuilder::appendSpace(uint n)
-{
-    if (m_str == NULL) {
-        m_size = n + 1;
-        m_str = strAlloc(m_size);
-        memset(m_str, ' ', m_size);
-        m_str[n] = '\0';
-    }
-    else {
-        const uint len = strLen(m_str);
-        if (m_size < len + n + 1) {
-            m_size = len + n + 1;
-            m_str = strReAlloc(m_str, m_size);
-        }
-        memset(m_str + len, ' ', n);
-        m_str[len+n] = '\0';
-    }
-
-    return *this;
-}
-
-
-/** Convert number to string in the given base. */
-StringBuilder & StringBuilder::number( int i, int base )
-{
-    nvCheck( base >= 2 );
-    nvCheck( base <= 36 );
-
-    // @@ This needs to be done correctly.
-    // length = floor(log(i, base));
-    uint len = uint(log(float(i)) / log(float(base)) + 2); // one more if negative
-    reserve(len);
-
-    if( i < 0 ) {
-        *m_str = '-';
-        *i2a(uint(-i), m_str+1, base) = 0;
-    }
-    else {
-        *i2a(i, m_str, base) = 0;
-    }
-
-    return *this;
-}
-
-
-/** Convert number to string in the given base. */
-StringBuilder & StringBuilder::number( uint i, int base )
-{
-    nvCheck( base >= 2 );
-    nvCheck( base <= 36 );
-
-    // @@ This needs to be done correctly.
-    // length = floor(log(i, base));
-    uint len = uint(log(float(i)) / log(float(base)) - 0.5f + 1);
-    reserve(len);
-
-    *i2a(i, m_str, base) = 0;
-
-    return *this;
-}
-
-
-/** Resize the string preserving the contents. */
-StringBuilder & StringBuilder::reserve( uint size_hint )
-{
-    nvCheck(size_hint != 0);
-    if (size_hint > m_size) {
-        m_str = strReAlloc(m_str, size_hint);
-        m_size = size_hint;
-    }
-    return *this;
-}
-
-
-/** Copy a string safely. */
-StringBuilder & StringBuilder::copy(const char * s)
-{
-    nvCheck( s != NULL );
-    const uint str_size = uint(strlen( s )) + 1;
-    reserve(str_size);
-    memcpy(m_str, s, str_size);
-    return *this;
-}
-
-/** Copy a string safely. */
-StringBuilder & StringBuilder::copy(const char * s, uint len)
-{
-    nvCheck( s != NULL );
-    const uint str_size = len + 1;
-    reserve(str_size);
-    strCpy(m_str, str_size, s, len);
-    return *this;
-}
-
-
-/** Copy an StringBuilder. */
-StringBuilder & StringBuilder::copy( const StringBuilder & s )
-{
-    if (s.m_str == NULL) {
-        nvCheck( s.m_size == 0 );
-        reset();
-    }
-    else {
-        reserve( s.m_size );
-        strCpy( m_str, s.m_size, s.m_str );
-    }
-    return *this;
-}
-
-bool StringBuilder::endsWith(const char * str) const
-{
-    uint l = uint(strlen(str));
-    uint ml = uint(strlen(m_str));
-    if (ml < l) return false;
-    return strncmp(m_str + ml - l, str, l) == 0;
-}
-
-bool StringBuilder::beginsWith(const char * str) const 
-{
-    size_t l = strlen(str);
-    return strncmp(m_str, str, l) == 0;
-}
-
-// Find given char starting from the end.
-char * StringBuilder::reverseFind(char c)
-{
-    int length = (int)strlen(m_str) - 1;
-    while (length >= 0 && m_str[length] != c) {
-        length--;
-    }
-    if (length >= 0) {
-        return m_str + length;
-    }
-    else {
-        return NULL;
-    }
-}
-
-
-/** Reset the string. */
-void StringBuilder::reset()
-{
-    m_size = 0;
-    strFree( m_str );
-    m_str = NULL;
-}
-
-/** Release the allocated string. */
-char * StringBuilder::release()
-{
-    char * str = m_str;
-    m_size = 0;
-    m_str = NULL;
-    return str;
-}
-
-// Take ownership of string.
-void StringBuilder::acquire(char * str)
-{
-    if (str) {
-        m_size = strLen(str) + 1;
-        m_str = str;
-    }
-    else {
-        m_size = 0;
-        m_str = NULL;
-    }
-}
-
-// Swap strings.
-void nv::swap(StringBuilder & a, StringBuilder & b) {
-    swap(a.m_size, b.m_size);
-    swap(a.m_str, b.m_str);
-}
-
-
-/// Get the file name from a path.
-const char * Path::fileName() const
-{
-    return fileName(m_str);
-}
-
-
-/// Get the extension from a file path.
-const char * Path::extension() const
-{
-    return extension(m_str);
-}
-
-
-/*static */void Path::translatePath(char * path, char pathSeparator/*= NV_PATH_SEPARATOR*/) {
-    if (path != NULL) {
-        for (int i = 0;; i++) {
-            if (path[i] == '\0') break;
-            if (path[i] == '\\' || path[i] == '/') path[i] = pathSeparator;
-        }
-    }
-}
-
-/// Toggles path separators (ie. \\ into /).
-void Path::translatePath(char pathSeparator/*=NV_PATH_SEPARATOR*/)
-{
-    if (!isNull()) {
-        translatePath(m_str, pathSeparator);
-    }
-}
-
-void Path::appendSeparator(char pathSeparator/*=NV_PATH_SEPARATOR*/)
-{
-    nvCheck(!isNull());
-
-    const uint l = length();
-    
-    if (m_str[l] != '\\' && m_str[l] != '/') {
-        char separatorString[] = { pathSeparator, '\0' };
-        append(separatorString);
-    }
-}
-
-
-/**
-* Strip the file name from a path.
-* @warning path cannot end with '/' o '\\', can't it?
-*/
-void Path::stripFileName()
-{
-    nvCheck( m_str != NULL );
-
-    int length = (int)strlen(m_str) - 1;
-    while (length > 0 && m_str[length] != '/' && m_str[length] != '\\'){
-        length--;
-    }
-    if( length ) {
-        m_str[length+1] = 0;
-    }
-    else {
-        m_str[0] = 0;
-    }
-}
-
-
-/// Strip the extension from a path name.
-void Path::stripExtension()
-{
-    nvCheck( m_str != NULL );
-
-    int length = (int)strlen(m_str) - 1;
-    while (length > 0 && m_str[length] != '.') {
-        length--;
-        if( m_str[length] == NV_PATH_SEPARATOR ) {
-            return; // no extension
-        }
-    }
-    if (length > 0) {
-        m_str[length] = 0;
-    }
-}
-
-
-/// Get the path separator.
-// static
-char Path::separator()
-{
-    return NV_PATH_SEPARATOR;
-}
-
-// static 
-const char * Path::fileName(const char * str)
-{
-    nvCheck( str != NULL );
-
-    int length = (int)strlen(str) - 1;
-    while (length >= 0 && str[length] != '\\' && str[length] != '/') {
-        length--;
-    }
-
-    return &str[length+1];
-}
-
-// static 
-const char * Path::extension(const char * str)
-{
-    nvCheck( str != NULL );
-
-    int length, l;
-    l = length = (int)strlen( str );
-    while (length > 0 && str[length] != '.') {
-        length--;
-        if (str[length] == '\\' || str[length] == '/') {
-            return &str[l]; // no extension
-        }
-    }
-    if (length == 0) {
-        return &str[l];
-    }
-    return &str[length];
-}
-
-
-
-/// Clone this string
-String String::clone() const
-{
-    String str(data);
-    return str;
-}
-
-void String::setString(const char * str)
-{
-    if (str == NULL) {
-        data = NULL;
-    }
-    else {
-        allocString( str );
-        addRef();
-    }
-}
-
-void String::setString(const char * str, uint length)
-{
-    nvDebugCheck(str != NULL);
-
-    allocString(str, length);
-    addRef();
-}
-
-void String::setString(const StringBuilder & str)
-{
-    if (str.str() == NULL) {
-        data =	NULL;
-    }
-    else {
-        allocString(str.str());
-        addRef();
-    }
-}	
-
-// Add reference count.
-void String::addRef()
-{
-    if (data != NULL)
-    {
-        setRefCount(getRefCount() + 1);
-    }
-}
-
-// Decrease reference count.
-void String::release()
-{
-    if (data != NULL)
-    {
-        const uint16 count = getRefCount();
-        setRefCount(count - 1);
-        if (count - 1 == 0) {
-            free(data - 2);
-            data = NULL;
-        }
-    }
-}
-
-void String::allocString(const char * str, uint len)
-{
-    const char * ptr = malloc<char>(2 + len + 1);
-
-    setData( ptr );
-    setRefCount( 0 );
-
-    // Copy string.
-    strCpy(const_cast<char *>(data), len+1, str, len);
-
-    // Add terminating character.
-    const_cast<char *>(data)[len] = '\0';
-}
-
-void nv::swap(String & a, String & b) {
-    swap(a.data, b.data);
-}
diff --git a/thirdparty/thekla_atlas/nvcore/StrLib.h b/thirdparty/thekla_atlas/nvcore/StrLib.h
deleted file mode 100644
index ae4b5d12a0..0000000000
--- a/thirdparty/thekla_atlas/nvcore/StrLib.h
+++ /dev/null
@@ -1,433 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_STRING_H
-#define NV_CORE_STRING_H
-
-#include "Debug.h"
-#include "Hash.h" // hash
-
-//#include <string.h> // strlen, etc.
-
-#if NV_OS_WIN32
-#define NV_PATH_SEPARATOR '\\'
-#else
-#define NV_PATH_SEPARATOR '/'
-#endif
-
-namespace nv
-{
-
-    NVCORE_API uint strHash(const char * str, uint h) NV_PURE;
-
-    /// String hash based on Bernstein's hash.
-    inline uint strHash(const char * data, uint h = 5381)
-    {
-        uint i = 0;
-        while(data[i] != 0) {
-            h = (33 * h) ^ uint(data[i]);
-            i++;
-        }
-        return h;
-    }
-
-    template <> struct Hash<const char *> {
-        uint operator()(const char * str) const { return strHash(str); }
-    };
-
-    NVCORE_API uint strLen(const char * str) NV_PURE;                       // Asserts on NULL strings.
-
-    NVCORE_API int strDiff(const char * s1, const char * s2) NV_PURE;       // Asserts on NULL strings.
-    NVCORE_API int strCaseDiff(const char * s1, const char * s2) NV_PURE;   // Asserts on NULL strings.
-    NVCORE_API bool strEqual(const char * s1, const char * s2) NV_PURE;     // Accepts NULL strings.
-    NVCORE_API bool strCaseEqual(const char * s1, const char * s2) NV_PURE; // Accepts NULL strings.
-
-    template <> struct Equal<const char *> {
-        bool operator()(const char * a, const char * b) const { return strEqual(a, b); }
-    };
-
-    NVCORE_API bool strBeginsWith(const char * dst, const char * prefix) NV_PURE;
-    NVCORE_API bool strEndsWith(const char * dst, const char * suffix) NV_PURE;
-
-
-    NVCORE_API void strCpy(char * dst, uint size, const char * src);
-    NVCORE_API void strCpy(char * dst, uint size, const char * src, uint len);
-    NVCORE_API void strCat(char * dst, uint size, const char * src);
-
-    NVCORE_API const char * strSkipWhiteSpace(const char * str);
-    NVCORE_API char * strSkipWhiteSpace(char * str);
-
-    NVCORE_API bool strMatch(const char * str, const char * pat) NV_PURE;
-
-    NVCORE_API bool isNumber(const char * str) NV_PURE;
-
-    /* @@ Implement these two functions and modify StringBuilder to use them?
-    NVCORE_API void strFormat(const char * dst, const char * fmt, ...);
-    NVCORE_API void strFormatList(const char * dst, const char * fmt, va_list arg);
-
-    template <size_t count> void strFormatSafe(char (&buffer)[count], const char *fmt, ...) __attribute__((format (printf, 2, 3)));
-    template <size_t count> void strFormatSafe(char (&buffer)[count], const char *fmt, ...) {
-        va_list args;
-        va_start(args, fmt);
-        strFormatList(buffer, count, fmt, args);
-        va_end(args);
-    }
-    template <size_t count> void strFormatListSafe(char (&buffer)[count], const char *fmt, va_list arg) {
-        va_list tmp;
-        va_copy(tmp, args);
-        strFormatList(buffer, count, fmt, tmp);
-        va_end(tmp);
-    }*/
-
-    template <int count> void strCpySafe(char (&buffer)[count], const char *src) {
-        strCpy(buffer, count, src);
-    }
-
-    template <int count> void strCatSafe(char (&buffer)[count], const char * src) {
-        strCat(buffer, count, src);
-    }
-
-
-
-    /// String builder.
-    class NVCORE_CLASS StringBuilder
-    {
-    public:
-
-        StringBuilder();
-        explicit StringBuilder( uint size_hint );
-        StringBuilder(const char * str);
-        StringBuilder(const char * str, uint len);
-        StringBuilder(const StringBuilder & other);
-
-        ~StringBuilder();
-
-        StringBuilder & format( const char * format, ... ) __attribute__((format (printf, 2, 3)));
-        StringBuilder & formatList( const char * format, va_list arg );
-
-        StringBuilder & append(char c);
-        StringBuilder & append(const char * str);
-        StringBuilder & append(const char * str, uint len);
-        StringBuilder & append(const StringBuilder & str);
-        StringBuilder & appendFormat(const char * format, ...) __attribute__((format (printf, 2, 3)));
-        StringBuilder & appendFormatList(const char * format, va_list arg);
-
-        StringBuilder & appendSpace(uint n);
-
-        StringBuilder & number( int i, int base = 10 );
-        StringBuilder & number( uint i, int base = 10 );
-
-        StringBuilder & reserve(uint size_hint);
-        StringBuilder & copy(const char * str);
-        StringBuilder & copy(const char * str, uint len);
-        StringBuilder & copy(const StringBuilder & str);
-
-        StringBuilder & toLower();
-        StringBuilder & toUpper();
-
-        bool endsWith(const char * str) const;
-        bool beginsWith(const char * str) const;
-
-        char * reverseFind(char c);
-
-        void reset();
-        bool isNull() const { return m_size == 0; }
-
-        // const char * accessors
-        //operator const char * () const { return m_str; }
-        //operator char * () { return m_str; }
-        const char * str() const { return m_str; }
-        char * str() { return m_str; }
-
-        char * release();       // Release ownership of string.
-        void acquire(char *);   // Take ownership of string.
-
-        /// Implement value semantics.
-        StringBuilder & operator=( const StringBuilder & s ) {
-            return copy(s);
-        }
-
-        /// Implement value semantics.
-        StringBuilder & operator=( const char * s ) {
-            return copy(s);
-        }
-
-        /// Equal operator.
-        bool operator==( const StringBuilder & s ) const {
-            return strMatch(s.m_str, m_str);
-        }
-
-        /// Return the exact length.
-        uint length() const { return isNull() ? 0 : strLen(m_str); }
-
-        /// Return the size of the string container.
-        uint capacity() const { return m_size; }
-
-        /// Return the hash of the string.
-        uint hash() const { return isNull() ? 0 : strHash(m_str); }
-
-        // Swap strings.
-        friend void swap(StringBuilder & a, StringBuilder & b);
-
-    protected:
-
-        /// Size of the string container.
-        uint m_size;
-
-        /// String.
-        char * m_str;
-
-    };
-
-
-    /// Path string. @@ This should be called PathBuilder.
-    class NVCORE_CLASS Path : public StringBuilder
-    {
-    public:
-        Path() : StringBuilder() {}
-        explicit Path(int size_hint) : StringBuilder(size_hint) {}
-        Path(const char * str) : StringBuilder(str) {}
-        Path(const Path & path) : StringBuilder(path) {}
-
-        const char * fileName() const;
-        const char * extension() const;
-
-        void translatePath(char pathSeparator = NV_PATH_SEPARATOR);
-
-        void appendSeparator(char pathSeparator = NV_PATH_SEPARATOR);
-
-        void stripFileName();
-        void stripExtension();
-
-        // statics
-        NVCORE_API static char separator();
-        NVCORE_API static const char * fileName(const char *);
-        NVCORE_API static const char * extension(const char *);
-
-        NVCORE_API static void translatePath(char * path, char pathSeparator = NV_PATH_SEPARATOR);
-    };
-
-
-    /// String class.
-    class NVCORE_CLASS String
-    {
-    public:
-
-        /// Constructs a null string. @sa isNull()
-        String()
-        {
-            data = NULL;
-        }
-
-        /// Constructs a shared copy of str.
-        String(const String & str)
-        {
-            data = str.data;
-            if (data != NULL) addRef();
-        }
-
-        /// Constructs a shared string from a standard string.
-        String(const char * str)
-        {
-            setString(str);
-        }
-
-        /// Constructs a shared string from a standard string.
-        String(const char * str, int length)
-        {
-            setString(str, length);
-        }
-
-        /// Constructs a shared string from a StringBuilder.
-        String(const StringBuilder & str)
-        {
-            setString(str);
-        }
-
-        /// Dtor.
-        ~String()
-        {
-            release();
-        }
-
-        String clone() const;
-
-        /// Release the current string and allocate a new one.
-        const String & operator=( const char * str )
-        {
-            release();
-            setString( str );
-            return *this;
-        }
-
-        /// Release the current string and allocate a new one.
-        const String & operator=( const StringBuilder & str )
-        {
-            release();
-            setString( str );
-            return *this;
-        }
-
-        /// Implement value semantics.
-        String & operator=( const String & str )
-        {
-            if (str.data != data)
-            {
-                release();
-                data = str.data;
-                addRef();
-            }
-            return *this;
-        }
-
-        /// Equal operator.
-        bool operator==( const String & str ) const
-        {
-            return strMatch(str.data, data);
-        }
-
-        /// Equal operator.
-        bool operator==( const char * str ) const
-        {
-            return strMatch(str, data);
-        }
-
-        /// Not equal operator.
-        bool operator!=( const String & str ) const
-        {
-            return !strMatch(str.data, data);
-        }
-
-        /// Not equal operator.
-        bool operator!=( const char * str ) const
-        {
-            return !strMatch(str, data);
-        }
-
-        /// Returns true if this string is the null string.
-        bool isNull() const { return data == NULL; }
-
-        /// Return the exact length.
-        uint length() const { nvDebugCheck(data != NULL); return strLen(data); }
-
-        /// Return the hash of the string.
-        uint hash() const { nvDebugCheck(data != NULL); return strHash(data); }
-
-        /// const char * cast operator.
-        operator const char * () const { return data; }
-
-        /// Get string pointer.
-        const char * str() const { return data; }
-
-
-    private:
-
-        // Add reference count.
-        void addRef();
-
-        // Decrease reference count.
-        void release();
-
-        uint16 getRefCount() const
-        {
-            nvDebugCheck(data != NULL);
-            return *reinterpret_cast<const uint16 *>(data - 2);
-        }
-
-        void setRefCount(uint16 count) {
-            nvDebugCheck(data != NULL);
-            nvCheck(count < 0xFFFF);
-            *reinterpret_cast<uint16 *>(const_cast<char *>(data - 2)) = uint16(count);
-        }
-
-        void setData(const char * str) {
-            data = str + 2;
-        }
-
-        void allocString(const char * str)
-        {
-            allocString(str, strLen(str));
-        }
-
-        void allocString(const char * str, uint length);
-
-        void setString(const char * str);
-        void setString(const char * str, uint length);
-        void setString(const StringBuilder & str);
-
-        // Swap strings.
-        friend void swap(String & a, String & b);
-
-    private:
-
-        const char * data;
-
-    };
-
-    template <> struct Hash<String> {
-        uint operator()(const String & str) const { return str.hash(); }
-    };
-
-
-    // Like AutoPtr, but for const char strings.
-    class AutoString
-    {
-        NV_FORBID_COPY(AutoString);
-        NV_FORBID_HEAPALLOC();
-    public:
-
-        // Ctor.
-        AutoString(const char * p = NULL) : m_ptr(p) { }
-
-#if NV_CC_CPP11
-        // Move ctor.
-        AutoString(AutoString && ap) : m_ptr(ap.m_ptr) { ap.m_ptr = NULL; }
-#endif
-        
-        // Dtor. Deletes owned pointer.
-        ~AutoString() {
-            delete [] m_ptr;
-            m_ptr = NULL;
-        }
-
-        // Delete owned pointer and assign new one.
-        void operator=(const char * p) {
-            if (p != m_ptr) 
-            {
-                delete [] m_ptr;
-                m_ptr = p;
-            }
-        }
-
-        // Get pointer.
-        const char * ptr() const { return m_ptr; }
-        operator const char *() const { return m_ptr; }
-
-        // Relinquish ownership of the underlying pointer and returns that pointer.
-        const char * release() {
-            const char * tmp = m_ptr;
-            m_ptr = NULL;
-            return tmp;
-        }
-
-        // comparison operators.
-        friend bool operator == (const AutoString & ap, const char * const p) {
-            return (ap.ptr() == p);
-        }
-        friend bool operator != (const AutoString & ap, const char * const p) {
-            return (ap.ptr() != p);
-        }
-        friend bool operator == (const char * const p, const AutoString & ap) {
-            return (ap.ptr() == p);
-        }
-        friend bool operator != (const char * const p, const AutoString & ap) {
-            return (ap.ptr() != p);
-        }
-
-    private:
-        const char * m_ptr;
-    };
-
-} // nv namespace
-
-#endif // NV_CORE_STRING_H
diff --git a/thirdparty/thekla_atlas/nvcore/Stream.h b/thirdparty/thekla_atlas/nvcore/Stream.h
deleted file mode 100644
index c35c0d0c78..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Stream.h
+++ /dev/null
@@ -1,164 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_STREAM_H
-#define NV_CORE_STREAM_H
-
-#include "nvcore.h"
-#include "Debug.h"
-
-namespace nv
-{
-
-    /// Base stream class.
-    class NVCORE_CLASS Stream {
-    public:
-
-        enum ByteOrder {
-            LittleEndian = false,
-            BigEndian = true,
-        };
-
-        /// Get the byte order of the system.
-        static ByteOrder getSystemByteOrder() { 
-#if NV_LITTLE_ENDIAN
-            return LittleEndian;
-#else
-            return BigEndian;
-#endif
-        }
-
-
-        /// Ctor.
-        Stream() : m_byteOrder(LittleEndian) { }
-
-        /// Virtual destructor.
-        virtual ~Stream() {}
-
-        /// Set byte order.
-        void setByteOrder(ByteOrder bo) { m_byteOrder = bo; }
-
-        /// Get byte order.
-        ByteOrder byteOrder() const { return m_byteOrder; }
-
-
-        /// Serialize the given data.
-        virtual uint serialize( void * data, uint len ) = 0;
-
-        /// Move to the given position in the archive.
-        virtual void seek( uint pos ) = 0;
-
-        /// Return the current position in the archive.
-        virtual uint tell() const = 0;
-
-        /// Return the current size of the archive.
-        virtual uint size() const = 0;
-
-        /// Determine if there has been any error.
-        virtual bool isError() const = 0;
-
-        /// Clear errors.
-        virtual void clearError() = 0;
-
-        /// Return true if the stream is at the end.
-        virtual bool isAtEnd() const = 0;
-
-        /// Return true if the stream is seekable.
-        virtual bool isSeekable() const = 0;
-
-        /// Return true if this is an input stream.
-        virtual bool isLoading() const = 0;
-
-        /// Return true if this is an output stream.
-        virtual bool isSaving() const = 0;
-
-
-        void advance(uint offset) { seek(tell() + offset); }
-
-
-        // friends
-        friend Stream & operator<<( Stream & s, bool & c ) {
-#if NV_OS_DARWIN && !NV_CC_CPP11
-            nvStaticCheck(sizeof(bool) == 4);
-            uint8 b = c ? 1 : 0;
-            s.serialize( &b, 1 );
-            c = (b != 0);
-#else
-            nvStaticCheck(sizeof(bool) == 1);
-            s.serialize( &c, 1 );
-#endif
-            return s;
-        }
-        friend Stream & operator<<( Stream & s, char & c ) {
-            nvStaticCheck(sizeof(char) == 1);
-            s.serialize( &c, 1 );
-            return s;
-        }
-        friend Stream & operator<<( Stream & s, uint8 & c ) {
-            nvStaticCheck(sizeof(uint8) == 1);
-            s.serialize( &c, 1 );
-            return s;
-        }
-        friend Stream & operator<<( Stream & s, int8 & c ) {
-            nvStaticCheck(sizeof(int8) == 1);
-            s.serialize( &c, 1 );
-            return s;
-        }
-        friend Stream & operator<<( Stream & s, uint16 & c ) {
-            nvStaticCheck(sizeof(uint16) == 2);
-            return s.byteOrderSerialize( &c, 2 );
-        }
-        friend Stream & operator<<( Stream & s, int16 & c ) {
-            nvStaticCheck(sizeof(int16) == 2);
-            return s.byteOrderSerialize( &c, 2 );
-        }
-        friend Stream & operator<<( Stream & s, uint32 & c ) {
-            nvStaticCheck(sizeof(uint32) == 4);
-            return s.byteOrderSerialize( &c, 4 );
-        }
-        friend Stream & operator<<( Stream & s, int32 & c ) {
-            nvStaticCheck(sizeof(int32) == 4);
-            return s.byteOrderSerialize( &c, 4 );
-        }
-        friend Stream & operator<<( Stream & s, uint64 & c ) {
-            nvStaticCheck(sizeof(uint64) == 8);
-            return s.byteOrderSerialize( &c, 8 );
-        }
-        friend Stream & operator<<( Stream & s, int64 & c ) {
-            nvStaticCheck(sizeof(int64) == 8);
-            return s.byteOrderSerialize( &c, 8 );
-        }
-        friend Stream & operator<<( Stream & s, float & c ) {
-            nvStaticCheck(sizeof(float) == 4);
-            return s.byteOrderSerialize( &c, 4 );
-        }
-        friend Stream & operator<<( Stream & s, double & c ) {
-            nvStaticCheck(sizeof(double) == 8);
-            return s.byteOrderSerialize( &c, 8 );
-        }
-
-    protected:
-
-        /// Serialize in the stream byte order.
-        Stream & byteOrderSerialize( void * v, uint len ) {
-            if( m_byteOrder == getSystemByteOrder() ) {
-                serialize( v, len );
-            }
-            else {
-                for( uint i = len; i > 0; i-- ) {
-                    serialize( (uint8 *)v + i - 1, 1 );
-                }
-            }
-            return *this;
-        }
-
-
-    private:
-
-        ByteOrder m_byteOrder;
-
-    };
-
-} // nv namespace
-
-#endif // NV_CORE_STREAM_H
diff --git a/thirdparty/thekla_atlas/nvcore/Utils.h b/thirdparty/thekla_atlas/nvcore/Utils.h
deleted file mode 100644
index f20e42cda8..0000000000
--- a/thirdparty/thekla_atlas/nvcore/Utils.h
+++ /dev/null
@@ -1,315 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_UTILS_H
-#define NV_CORE_UTILS_H
-
-#include "Debug.h" // nvDebugCheck
-
-#include <new> // for placement new
-
-
-// Just in case. Grrr.
-#undef min
-#undef max
-
-#define NV_INT8_MIN    (-128)
-#define NV_INT8_MAX    127
-#define NV_UINT8_MAX    255
-#define NV_INT16_MIN    (-32767-1)
-#define NV_INT16_MAX    32767
-#define NV_UINT16_MAX   0xffff
-#define NV_INT32_MIN    (-2147483647-1)
-#define NV_INT32_MAX    2147483647
-#define NV_UINT32_MAX   0xffffffff
-#define NV_INT64_MAX    POSH_I64(9223372036854775807)
-#define NV_INT64_MIN    (-POSH_I64(9223372036854775807)-1)
-#define NV_UINT64_MAX   POSH_U64(0xffffffffffffffff)
-
-#define NV_HALF_MAX     65504.0F
-#define NV_FLOAT_MAX    3.402823466e+38F
-
-#define NV_INTEGER_TO_FLOAT_MAX  16777217     // Largest integer such that it and all smaller integers can be stored in a 32bit float.
-
-
-namespace nv
-{
-    // Less error prone than casting. From CB:
-    // http://cbloomrants.blogspot.com/2011/06/06-17-11-c-casting-is-devil.html
-
-    // These intentionally look like casts.
-
-    // uint64 casts:
-    template <typename T> inline uint64 U64(T x) { return x; }
-    //template <> inline uint64 U64<uint64>(uint64 x) { return x; }
-    template <> inline uint64 U64<int64>(int64 x) { nvDebugCheck(x >= 0); return (uint64)x; }
-    //template <> inline uint64 U32<uint32>(uint32 x) { return x; }
-    template <> inline uint64 U64<int32>(int32 x) { nvDebugCheck(x >= 0); return (uint64)x; }
-    //template <> inline uint64 U64<uint16>(uint16 x) { return x; }
-    template <> inline uint64 U64<int16>(int16 x) { nvDebugCheck(x >= 0); return (uint64)x; }
-    //template <> inline uint64 U64<uint8>(uint8 x) { return x; }
-    template <> inline uint64 U64<int8>(int8 x) { nvDebugCheck(x >= 0); return (uint64)x; }
-
-    // int64 casts:
-    template <typename T> inline int64 I64(T x) { return x; }
-    template <> inline int64 I64<uint64>(uint64 x) { nvDebugCheck(x <= NV_INT64_MAX); return (int64)x; }
-    //template <> inline uint64 U64<int64>(int64 x) { return x; }
-    //template <> inline uint64 U32<uint32>(uint32 x) { return x; }
-    //template <> inline uint64 U64<int32>(int32 x) { return x; }
-    //template <> inline uint64 U64<uint16>(uint16 x) { return x; }
-    //template <> inline uint64 U64<int16>(int16 x) { return x; }
-    //template <> inline uint64 U64<uint8>(uint8 x) { return x; }
-    //template <> inline uint64 U64<int8>(int8 x) { return x; }
-
-    // uint32 casts:
-    template <typename T> inline uint32 U32(T x) { return x; }
-    template <> inline uint32 U32<uint64>(uint64 x) { nvDebugCheck(x <= NV_UINT32_MAX); return (uint32)x; }
-    template <> inline uint32 U32<int64>(int64 x) { nvDebugCheck(x >= 0 && x <= NV_UINT32_MAX); return (uint32)x; }
-    //template <> inline uint32 U32<uint32>(uint32 x) { return x; }
-    template <> inline uint32 U32<int32>(int32 x) { nvDebugCheck(x >= 0); return (uint32)x; }
-    //template <> inline uint32 U32<uint16>(uint16 x) { return x; }
-    template <> inline uint32 U32<int16>(int16 x) { nvDebugCheck(x >= 0); return (uint32)x; }
-    //template <> inline uint32 U32<uint8>(uint8 x) { return x; }
-    template <> inline uint32 U32<int8>(int8 x) { nvDebugCheck(x >= 0); return (uint32)x; }
-
-    // int32 casts:
-    template <typename T> inline int32 I32(T x) { return x; }
-    template <> inline int32 I32<uint64>(uint64 x) { nvDebugCheck(x <= NV_INT32_MAX); return (int32)x; }
-    template <> inline int32 I32<int64>(int64 x) { nvDebugCheck(x >= NV_INT32_MIN && x <= NV_UINT32_MAX); return (int32)x; }
-    template <> inline int32 I32<uint32>(uint32 x) { nvDebugCheck(x <= NV_INT32_MAX); return (int32)x; }
-    //template <> inline int32 I32<int32>(int32 x) { return x; }
-    //template <> inline int32 I32<uint16>(uint16 x) { return x; }
-    //template <> inline int32 I32<int16>(int16 x) { return x; }
-    //template <> inline int32 I32<uint8>(uint8 x) { return x; }
-    //template <> inline int32 I32<int8>(int8 x) { return x; }
-
-    // uint16 casts:
-    template <typename T> inline uint16 U16(T x) { return x; }
-    template <> inline uint16 U16<uint64>(uint64 x) { nvDebugCheck(x <= NV_UINT16_MAX); return (uint16)x; }
-    template <> inline uint16 U16<int64>(int64 x) { nvDebugCheck(x >= 0 && x <= NV_UINT16_MAX); return (uint16)x; }
-    template <> inline uint16 U16<uint32>(uint32 x) { nvDebugCheck(x <= NV_UINT16_MAX); return (uint16)x; }
-    template <> inline uint16 U16<int32>(int32 x) { nvDebugCheck(x >= 0 && x <= NV_UINT16_MAX); return (uint16)x; }
-    //template <> inline uint16 U16<uint16>(uint16 x) { return x; }
-    template <> inline uint16 U16<int16>(int16 x) { nvDebugCheck(x >= 0); return (uint16)x; }
-    //template <> inline uint16 U16<uint8>(uint8 x) { return x; }
-    template <> inline uint16 U16<int8>(int8 x) { nvDebugCheck(x >= 0); return (uint16)x; }
-
-    // int16 casts:
-    template <typename T> inline int16 I16(T x) { return x; }
-    template <> inline int16 I16<uint64>(uint64 x) { nvDebugCheck(x <= NV_INT16_MAX); return (int16)x; }
-    template <> inline int16 I16<int64>(int64 x) { nvDebugCheck(x >= NV_INT16_MIN && x <= NV_UINT16_MAX); return (int16)x; }
-    template <> inline int16 I16<uint32>(uint32 x) { nvDebugCheck(x <= NV_INT16_MAX); return (int16)x; }
-    template <> inline int16 I16<int32>(int32 x) { nvDebugCheck(x >= NV_INT16_MIN && x <= NV_UINT16_MAX); return (int16)x; }
-    template <> inline int16 I16<uint16>(uint16 x) { nvDebugCheck(x <= NV_INT16_MAX); return (int16)x; }
-    //template <> inline int16 I16<int16>(int16 x) { return x; }
-    //template <> inline int16 I16<uint8>(uint8 x) { return x; }
-    //template <> inline int16 I16<int8>(int8 x) { return x; }
-
-    // uint8 casts:
-    template <typename T> inline uint8 U8(T x) { return x; }
-    template <> inline uint8 U8<uint64>(uint64 x) { nvDebugCheck(x <= NV_UINT8_MAX); return (uint8)x; }
-    template <> inline uint8 U8<int64>(int64 x) { nvDebugCheck(x >= 0 && x <= NV_UINT8_MAX); return (uint8)x; }
-    template <> inline uint8 U8<uint32>(uint32 x) { nvDebugCheck(x <= NV_UINT8_MAX); return (uint8)x; }
-    template <> inline uint8 U8<int32>(int32 x) { nvDebugCheck(x >= 0 && x <= NV_UINT8_MAX); return (uint8)x; }
-    template <> inline uint8 U8<uint16>(uint16 x) { nvDebugCheck(x <= NV_UINT8_MAX); return (uint8)x; }
-    template <> inline uint8 U8<int16>(int16 x) { nvDebugCheck(x >= 0 && x <= NV_UINT8_MAX); return (uint8)x; }
-    //template <> inline uint8 U8<uint8>(uint8 x) { return x; }
-    template <> inline uint8 U8<int8>(int8 x) { nvDebugCheck(x >= 0); return (uint8)x; }
-    //template <> inline uint8 U8<float>(int8 x) { nvDebugCheck(x >= 0.0f && x <= 255.0f); return (uint8)x; }
-
-    // int8 casts:
-    template <typename T> inline int8 I8(T x) { return x; }
-    template <> inline int8 I8<uint64>(uint64 x) { nvDebugCheck(x <= NV_INT8_MAX); return (int8)x; }
-    template <> inline int8 I8<int64>(int64 x) { nvDebugCheck(x >= NV_INT8_MIN && x <= NV_UINT8_MAX); return (int8)x; }
-    template <> inline int8 I8<uint32>(uint32 x) { nvDebugCheck(x <= NV_INT8_MAX); return (int8)x; }
-    template <> inline int8 I8<int32>(int32 x) { nvDebugCheck(x >= NV_INT8_MIN && x <= NV_UINT8_MAX); return (int8)x; }
-    template <> inline int8 I8<uint16>(uint16 x) { nvDebugCheck(x <= NV_INT8_MAX); return (int8)x; }
-    template <> inline int8 I8<int16>(int16 x) { nvDebugCheck(x >= NV_INT8_MIN && x <= NV_UINT8_MAX); return (int8)x; }
-    template <> inline int8 I8<uint8>(uint8 x) { nvDebugCheck(x <= NV_INT8_MAX); return (int8)x; }
-    //template <> inline int8 I8<int8>(int8 x) { return x; }
-
-    // float casts:
-    template <typename T> inline float F32(T x) { return x; }
-    template <> inline float F32<uint64>(uint64 x) { nvDebugCheck(x <= NV_INTEGER_TO_FLOAT_MAX); return (float)x; }
-    template <> inline float F32<int64>(int64 x) { nvDebugCheck(x >= -NV_INTEGER_TO_FLOAT_MAX && x <= NV_INTEGER_TO_FLOAT_MAX); return (float)x; }
-    template <> inline float F32<uint32>(uint32 x) { nvDebugCheck(x <= NV_INTEGER_TO_FLOAT_MAX); return (float)x; }
-    template <> inline float F32<int32>(int32 x) { nvDebugCheck(x >= -NV_INTEGER_TO_FLOAT_MAX && x <= NV_INTEGER_TO_FLOAT_MAX); return (float)x; }
-    // The compiler should not complain about these conversions:
-    //template <> inline float F32<uint16>(uint16 x) { nvDebugCheck(return (float)x; }
-    //template <> inline float F32<int16>(int16 x) { nvDebugCheck(return (float)x; }
-    //template <> inline float F32<uint8>(uint8 x) { nvDebugCheck(return (float)x; }
-    //template <> inline float F32<int8>(int8 x) { nvDebugCheck(return (float)x; }
-
-
-    /// Swap two values.
-    template <typename T> 
-    inline void swap(T & a, T & b)
-    {
-        T temp(a);
-        a = b; 
-        b = temp;
-    }
-
-    /// Return the maximum of the two arguments. For floating point values, it returns the second value if the first is NaN.
-    template <typename T> 
-    //inline const T & max(const T & a, const T & b)
-    inline T max(const T & a, const T & b)
-    {
-        return (b < a) ? a : b;
-    }
-
-	/// Return the maximum of the four arguments.
-	template <typename T> 
-	//inline const T & max4(const T & a, const T & b, const T & c)
-	inline T max4(const T & a, const T & b, const T & c, const T & d)
-	{
-		return max(max(a, b), max(c, d));
-	}
-
-    /// Return the maximum of the three arguments.
-    template <typename T> 
-    //inline const T & max3(const T & a, const T & b, const T & c)
-    inline T max3(const T & a, const T & b, const T & c)
-    {
-        return max(a, max(b, c));
-    }
-
-    /// Return the minimum of two values.
-    template <typename T> 
-    //inline const T & min(const T & a, const T & b)
-    inline T min(const T & a, const T & b)
-    {
-        return (a < b) ? a : b;
-    }
-
-    /// Return the maximum of the three arguments.
-    template <typename T> 
-    //inline const T & min3(const T & a, const T & b, const T & c)
-    inline T min3(const T & a, const T & b, const T & c)
-    {
-        return min(a, min(b, c));
-    }
-
-    /// Clamp between two values.
-    template <typename T> 
-    //inline const T & clamp(const T & x, const T & a, const T & b)
-    inline T clamp(const T & x, const T & a, const T & b)
-    {
-        return min(max(x, a), b);
-    }
-
-    /** Return the next power of two. 
-    * @see http://graphics.stanford.edu/~seander/bithacks.html
-    * @warning Behaviour for 0 is undefined.
-    * @note isPowerOfTwo(x) == true -> nextPowerOfTwo(x) == x
-    * @note nextPowerOfTwo(x) = 2 << log2(x-1)
-    */
-    inline uint32 nextPowerOfTwo(uint32 x)
-    {
-        nvDebugCheck( x != 0 );
-#if 1	// On modern CPUs this is supposed to be as fast as using the bsr instruction.
-        x--;
-        x |= x >> 1;
-        x |= x >> 2;
-        x |= x >> 4;
-        x |= x >> 8;
-        x |= x >> 16;
-        return x+1;	
-#else
-        uint p = 1;
-        while( x > p ) {
-            p += p;
-        }
-        return p;
-#endif
-    }
-
-    inline uint64 nextPowerOfTwo(uint64 x)
-    {
-        nvDebugCheck(x != 0);
-        uint p = 1;
-        while (x > p) {
-            p += p;
-        }
-        return p;
-    }
-
-    // @@ Should I just use a macro instead?
-    template <typename T>
-    inline bool isPowerOfTwo(T n)
-    {
-        return (n & (n-1)) == 0;
-    }
-
-
-    // @@ Move this to utils?
-    /// Delete all the elements of a container.
-    template <typename T>
-    void deleteAll(T & container)
-    {
-        for (typename T::PseudoIndex i = container.start(); !container.isDone(i); container.advance(i))
-        {
-            delete container[i];
-        }
-    }
-
-
-
-    // @@ Specialize these methods for numeric, pointer, and pod types.
-
-    template <typename T>
-    void construct_range(T * restrict ptr, uint new_size, uint old_size) {
-        for (uint i = old_size; i < new_size; i++) {
-            new(ptr+i) T; // placement new
-        }
-    }
-
-    template <typename T>
-    void construct_range(T * restrict ptr, uint new_size, uint old_size, const T & elem) {
-        for (uint i = old_size; i < new_size; i++) {
-            new(ptr+i) T(elem); // placement new
-        }
-    }
-
-    template <typename T>
-    void construct_range(T * restrict ptr, uint new_size, uint old_size, const T * src) {
-        for (uint i = old_size; i < new_size; i++) {
-            new(ptr+i) T(src[i]); // placement new
-        }
-    }
-
-    template <typename T>
-    void destroy_range(T * restrict ptr, uint new_size, uint old_size) {
-        for (uint i = new_size; i < old_size; i++) {
-            (ptr+i)->~T(); // Explicit call to the destructor
-        }
-    }
-
-    template <typename T>
-    void fill(T * restrict dst, uint count, const T & value) {
-        for (uint i = 0; i < count; i++) {
-            dst[i] = value;
-        }
-    }
-
-    template <typename T>
-    void copy_range(T * restrict dst, const T * restrict src, uint count) {
-        for (uint i = 0; i < count; i++) {
-            dst[i] = src[i];
-        }
-    }
-
-    template <typename T>
-    bool find(const T & element, const T * restrict ptr, uint begin, uint end, uint * index) {
-        for (uint i = begin; i < end; i++) {
-            if (ptr[i] == element) {
-                if (index != NULL) *index = i;
-                return true;
-            }
-        }
-        return false;
-    }
-
-} // nv namespace
-
-#endif // NV_CORE_UTILS_H
diff --git a/thirdparty/thekla_atlas/nvcore/nvcore.h b/thirdparty/thekla_atlas/nvcore/nvcore.h
deleted file mode 100644
index 5ef69668d9..0000000000
--- a/thirdparty/thekla_atlas/nvcore/nvcore.h
+++ /dev/null
@@ -1,360 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_CORE_H
-#define NV_CORE_H
-
-// Function linkage
-#if NVCORE_SHARED
-#ifdef NVCORE_EXPORTS
-#define NVCORE_API DLL_EXPORT
-#define NVCORE_CLASS DLL_EXPORT_CLASS
-#else
-#define NVCORE_API DLL_IMPORT
-#define NVCORE_CLASS DLL_IMPORT
-#endif
-#else // NVCORE_SHARED
-#define NVCORE_API
-#define NVCORE_CLASS
-#endif // NVCORE_SHARED
-
-
-// Platform definitions
-#include <posh.h>
-
-// OS:
-// NV_OS_WIN32
-// NV_OS_WIN64
-// NV_OS_MINGW
-// NV_OS_CYGWIN
-// NV_OS_LINUX
-// NV_OS_UNIX
-// NV_OS_DARWIN
-// NV_OS_XBOX
-// NV_OS_ORBIS
-// NV_OS_IOS
-
-#define NV_OS_STRING POSH_OS_STRING
-
-#if defined POSH_OS_LINUX
-#   define NV_OS_LINUX 1
-#   define NV_OS_UNIX 1
-#elif defined POSH_OS_ORBIS
-#   define NV_OS_ORBIS 1
-#elif defined POSH_OS_FREEBSD
-#   define NV_OS_FREEBSD 1
-#   define NV_OS_UNIX 1
-#elif defined POSH_OS_HAIKU
-#   define NV_OS_HAIKU 1
-#   define NV_OS_UNIX 1
-#elif defined POSH_OS_OPENBSD
-#   define NV_OS_OPENBSD 1
-#   define NV_OS_UNIX 1
-#elif defined POSH_OS_CYGWIN32
-#   define NV_OS_CYGWIN 1
-#elif defined POSH_OS_MINGW
-#   define NV_OS_MINGW 1
-#   define NV_OS_WIN32 1
-#elif defined POSH_OS_OSX
-#   define NV_OS_OSX 1      // IC: Adding this, because iOS defines NV_OS_DARWIN too.
-#   define NV_OS_DARWIN 1
-#   define NV_OS_UNIX 1
-#elif defined POSH_OS_IOS
-#   define NV_OS_DARWIN 1 //ACS should we keep this on IOS?
-#   define NV_OS_UNIX 1
-#   define NV_OS_IOS 1
-#elif defined POSH_OS_UNIX
-#   define NV_OS_UNIX 1
-#elif defined POSH_OS_WIN64
-#   define NV_OS_WIN32 1
-#   define NV_OS_WIN64 1
-#elif defined POSH_OS_WIN32
-#   define NV_OS_WIN32 1
-#elif defined POSH_OS_XBOX
-#   define NV_OS_XBOX 1
-#elif defined POSH_OS_DURANGO
-#   define NV_OS_DURANGO 1
-#else
-#   error "Unsupported OS"
-#endif
-
-
-// Is this a console OS? (i.e. connected to a TV)
-#if NV_OS_ORBIS || NV_OS_XBOX || NV_OS_DURANGO
-#   define NV_OS_CONSOLE 1
-#endif 
-
-
-// Threading:
-// some platforms don't implement __thread or similar for thread-local-storage
-#if NV_OS_UNIX || NV_OS_ORBIS || NV_OS_IOS //ACStodoIOS darwin instead of ios?
-#   define NV_OS_USE_PTHREAD 1
-#   if NV_OS_IOS
-#       define NV_OS_HAS_TLS_QUALIFIER 0
-#   else
-#       define NV_OS_HAS_TLS_QUALIFIER 1
-#   endif
-#else
-#   define NV_OS_USE_PTHREAD 0
-#   define NV_OS_HAS_TLS_QUALIFIER 1
-#endif
-
-
-// CPUs:
-// NV_CPU_X86
-// NV_CPU_X86_64
-// NV_CPU_PPC
-// NV_CPU_ARM
-
-#define NV_CPU_STRING   POSH_CPU_STRING
-
-#if defined POSH_CPU_X86_64
-//#   define NV_CPU_X86 1
-#   define NV_CPU_X86_64 1
-#elif defined POSH_CPU_X86
-#   define NV_CPU_X86 1
-#elif defined POSH_CPU_PPC
-#   define NV_CPU_PPC 1
-#elif defined POSH_CPU_STRONGARM
-#   define NV_CPU_ARM 1
-#else
-#   error "Unsupported CPU"
-#endif
-
-
-// Compiler:
-// NV_CC_GNUC
-// NV_CC_MSVC
-// NV_CC_CLANG
-
-#if defined POSH_COMPILER_CLANG
-#   define NV_CC_CLANG  1
-#   define NV_CC_GNUC   1    // Clang is compatible with GCC.
-#   define NV_CC_STRING "clang"
-#elif defined POSH_COMPILER_GCC
-#   define NV_CC_GNUC   1
-#   define NV_CC_STRING "gcc"
-#elif defined POSH_COMPILER_MSVC
-#   define NV_CC_MSVC   1
-#   define NV_CC_STRING "msvc"
-#else
-#   error "Unsupported compiler"
-#endif
-
-#if NV_CC_MSVC
-#define NV_CC_CPP11 (__cplusplus > 199711L || _MSC_VER >= 1800) // Visual Studio 2013 has all the features we use, but doesn't advertise full C++11 support yet.
-#else
-// @@ IC: This works in CLANG, about GCC?
-// @@ ES: Doesn't work in gcc. These 3 features are available in GCC >= 4.4.
-#ifdef __clang__
-#define NV_CC_CPP11 (__has_feature(cxx_deleted_functions) && __has_feature(cxx_rvalue_references) && __has_feature(cxx_static_assert))
-#elif defined __GNUC__ 
-#define NV_CC_CPP11 ( __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-#endif
-#endif
-
-// Endiannes:
-#define NV_LITTLE_ENDIAN    POSH_LITTLE_ENDIAN
-#define NV_BIG_ENDIAN       POSH_BIG_ENDIAN
-#define NV_ENDIAN_STRING    POSH_ENDIAN_STRING
-
-
-// Define the right printf prefix for size_t arguments:
-#if POSH_64BIT_POINTER
-#  define NV_SIZET_PRINTF_PREFIX POSH_I64_PRINTF_PREFIX
-#else
-#  define NV_SIZET_PRINTF_PREFIX
-#endif
-
-
-// cmake config
-#include "nvconfig.h"
-
-#if NV_OS_DARWIN
-#include <stdint.h>
-//#include <inttypes.h>
-
-// Type definitions:
-typedef uint8_t     uint8;
-typedef int8_t      int8;
-
-typedef uint16_t    uint16;
-typedef int16_t     int16;
-
-typedef uint32_t    uint32;
-typedef int32_t     int32;
-
-typedef uint64_t    uint64;
-typedef int64_t     int64;
-
-// POSH gets this wrong due to __LP64__
-#undef POSH_I64_PRINTF_PREFIX
-#define POSH_I64_PRINTF_PREFIX "ll"
-
-#else
-
-// Type definitions:
-typedef posh_u8_t   uint8;
-typedef posh_i8_t   int8;
-
-typedef posh_u16_t  uint16;
-typedef posh_i16_t  int16;
-
-typedef posh_u32_t  uint32;
-typedef posh_i32_t  int32;
-
-//#if NV_OS_DARWIN
-// OSX-64 is supposed to be LP64 (longs and pointers are 64 bits), thus uint64 is defined as 
-// unsigned long. However, some OSX headers define it as unsigned long long, producing errors,
-// even though both types are 64 bit. Ideally posh should handle that, but it has not been
-// updated in ages, so here I'm just falling back to the standard C99 types defined in inttypes.h
-//#include <inttypes.h>
-//typedef posh_u64_t  uint64_t;
-//typedef posh_i64_t  int64_t;
-//#else
-typedef posh_u64_t  uint64;
-typedef posh_i64_t  int64;
-//#endif
-#if NV_OS_DARWIN
-// To avoid duplicate definitions.
-#define _UINT64
-#endif
-#endif
-
-// Aliases
-typedef uint32      uint;
-
-
-// Version string:
-#define NV_VERSION_STRING \
-    NV_OS_STRING "/" NV_CC_STRING "/" NV_CPU_STRING"/" \
-    NV_ENDIAN_STRING"-endian - " __DATE__ "-" __TIME__
-
-
-// Disable copy constructor and assignment operator. 
-#if NV_CC_CPP11
-#define NV_FORBID_COPY(C) \
-    C( const C & ) = delete; \
-    C &operator=( const C & ) = delete
-#else
-#define NV_FORBID_COPY(C) \
-    private: \
-    C( const C & ); \
-    C &operator=( const C & )
-#endif
-
-// Disable dynamic allocation on the heap. 
-// See Prohibiting Heap-Based Objects in More Effective C++.
-#define NV_FORBID_HEAPALLOC() \
-    private: \
-    void *operator new(size_t size); \
-    void *operator new[](size_t size)
-    //static void *operator new(size_t size); \
-    //static void *operator new[](size_t size);
-
-// String concatenation macros.
-#define NV_STRING_JOIN2(arg1, arg2) NV_DO_STRING_JOIN2(arg1, arg2)
-#define NV_DO_STRING_JOIN2(arg1, arg2) arg1 ## arg2
-#define NV_STRING_JOIN3(arg1, arg2, arg3) NV_DO_STRING_JOIN3(arg1, arg2, arg3)
-#define NV_DO_STRING_JOIN3(arg1, arg2, arg3) arg1 ## arg2 ## arg3
-#define NV_STRING2(x) #x
-#define NV_STRING(x) NV_STRING2(x)
-
-#if NV_CC_MSVC
-#define NV_MULTI_LINE_MACRO_BEGIN do {  
-#define NV_MULTI_LINE_MACRO_END \
-    __pragma(warning(push)) \
-    __pragma(warning(disable:4127)) \
-    } while(false) \
-    __pragma(warning(pop))  
-#else
-#define NV_MULTI_LINE_MACRO_BEGIN do {
-#define NV_MULTI_LINE_MACRO_END } while(false)
-#endif
-
-#if NV_CC_CPP11
-#define nvStaticCheck(x) static_assert((x), "Static assert "#x" failed")
-#else
-#define nvStaticCheck(x) typedef char NV_STRING_JOIN2(__static_assert_,__LINE__)[(x)]
-#endif
-#define NV_COMPILER_CHECK(x) nvStaticCheck(x)   // I like this name best.
-
-// Make sure type definitions are fine.
-NV_COMPILER_CHECK(sizeof(int8) == 1);
-NV_COMPILER_CHECK(sizeof(uint8) == 1);
-NV_COMPILER_CHECK(sizeof(int16) == 2);
-NV_COMPILER_CHECK(sizeof(uint16) == 2);
-NV_COMPILER_CHECK(sizeof(int32) == 4);
-NV_COMPILER_CHECK(sizeof(uint32) == 4);
-NV_COMPILER_CHECK(sizeof(int32) == 4);
-NV_COMPILER_CHECK(sizeof(uint32) == 4);
-
-#include <stddef.h> // for size_t
-template <typename T, size_t N> char (&ArraySizeHelper(T (&array)[N]))[N];
-#define NV_ARRAY_SIZE(x) sizeof(ArraySizeHelper(x))
-//#define NV_ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
-
-#if 0 // Disabled in The Witness.
-#if NV_CC_MSVC
-#define NV_MESSAGE(x) message(__FILE__ "(" NV_STRING(__LINE__) ") : " x)
-#else
-#define NV_MESSAGE(x) message(x)
-#endif
-#else
-#define NV_MESSAGE(x) 
-#endif
-
-
-// Startup initialization macro.
-#define NV_AT_STARTUP(some_code) \
-    namespace { \
-        static struct NV_STRING_JOIN2(AtStartup_, __LINE__) { \
-            NV_STRING_JOIN2(AtStartup_, __LINE__)() { some_code; } \
-        } \
-        NV_STRING_JOIN3(AtStartup_, __LINE__, Instance); \
-    }
-
-// Indicate the compiler that the parameter is not used to suppress compier warnings.
-#if NV_CC_MSVC
-#define NV_UNUSED(a) ((a)=(a))
-#else
-#define NV_UNUSED(a) _Pragma(NV_STRING(unused(a)))
-#endif
-
-// Null index. @@ Move this somewhere else... it's only used by nvmesh.
-//const unsigned int NIL = unsigned int(~0);
-#define NIL uint(~0)
-
-// Null pointer.
-#ifndef NULL
-#define NULL 0
-#endif
-
-// Platform includes
-#if NV_CC_MSVC
-#   if NV_OS_WIN32
-#       include "DefsVcWin32.h"
-#   elif NV_OS_XBOX
-#       include "DefsVcXBox.h"
-#   elif NV_OS_DURANGO
-#       include "DefsVcDurango.h"
-#   else
-#       error "MSVC: Platform not supported"
-#   endif
-#elif NV_CC_GNUC
-#   if NV_OS_LINUX
-#       include "DefsGnucLinux.h"
-#   elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD || NV_OS_HAIKU
-#       include "DefsGnucDarwin.h"
-#   elif NV_OS_ORBIS
-#       include "DefsOrbis.h"
-#   elif NV_OS_MINGW
-#       include "DefsGnucWin32.h"
-#   elif NV_OS_CYGWIN
-#       error "GCC: Cygwin not supported"
-#   else
-#       error "GCC: Platform not supported"
-#   endif
-#endif
-
-#endif // NV_CORE_H
diff --git a/thirdparty/thekla_atlas/nvcore/scanf.c b/thirdparty/thekla_atlas/nvcore/scanf.c
deleted file mode 100644
index bf9d293154..0000000000
--- a/thirdparty/thekla_atlas/nvcore/scanf.c
+++ /dev/null
@@ -1,641 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * From: Id: vfscanf.c,v 1.13 1998/09/25 12:20:27 obrien Exp 
- * From: static char sccsid[] = "@(#)strtol.c	8.1 (Berkeley) 6/4/93";
- * From: static char sccsid[] = "@(#)strtoul.c	8.1 (Berkeley) 6/4/93";
- */
-
-#include <stdio.h> 
-#include <stdlib.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <string.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#pragma warning(disable : 4244) // conversion from '*' to '*', possible loss of data
-#pragma warning(disable : 4018) // signed/unsigned mismatch
-#pragma warning(disable : 4267) // '=' : conversion from 'size_t' to 'int', possible loss of data
-
-#define strtoq _strtoi64
-#define strtouq _strtoui64
-#define bcopy(b1,b2,len) (memmove((b2), (b1), (len)), (void) 0)
-
-typedef int long long quad_t;
-typedef unsigned long long u_quad_t;
-typedef unsigned char u_char;
-
-#define	BUF		32 	/* Maximum length of numeric string. */
-
-/*
- * Flags used during conversion.
- */
-#define	LONG		0x01	/* l: long or double */
-#define	SHORT		0x04	/* h: short */
-#define	SUPPRESS	0x08	/* suppress assignment */
-#define	POINTER		0x10	/* weird %p pointer (`fake hex') */
-#define	NOSKIP		0x20	/* do not skip blanks */
-#define	QUAD		0x400
-
-/*
- * The following are used in numeric conversions only:
- * SIGNOK, NDIGITS, DPTOK, and EXPOK are for floating point;
- * SIGNOK, NDIGITS, PFXOK, and NZDIGITS are for integral.
- */
-#define	SIGNOK		0x40	/* +/- is (still) legal */
-#define	NDIGITS		0x80	/* no digits detected */
-
-#define	DPTOK		0x100	/* (float) decimal point is still legal */
-#define	EXPOK		0x200	/* (float) exponent (e+3, etc) still legal */
-
-#define	PFXOK		0x100	/* 0x prefix is (still) legal */
-#define	NZDIGITS	0x200	/* no zero digits detected */
-
-/*
- * Conversion types.
- */
-#define	CT_CHAR		0	/* %c conversion */
-#define	CT_CCL		1	/* %[...] conversion */
-#define	CT_STRING	2	/* %s conversion */
-#define	CT_INT		3	/* integer, i.e., strtoq or strtouq */
-typedef u_quad_t (*ccfntype)(const char *, char **, int);
-
-static const u_char *__sccl(char *, const u_char *);
-
-int
-vsscanf(const char *inp, char const *fmt0, va_list ap)
-{
-	int inr;
-	const u_char *fmt = (const u_char *)fmt0;
-	int c;			/* character from format, or conversion */
-	size_t width;		/* field width, or 0 */
-	char *p;		/* points into all kinds of strings */
-	int n;			/* handy integer */
-	int flags;		/* flags as defined above */
-	char *p0;		/* saves original value of p when necessary */
-	int nassigned;		/* number of fields assigned */
-	int nconversions;	/* number of conversions */
-	int nread;		/* number of characters consumed from fp */
-	int base;		/* base argument to strtoq/strtouq */
-	ccfntype ccfn;		/* conversion function (strtoq/strtouq) */
-	char ccltab[256];	/* character class table for %[...] */
-	char buf[BUF];		/* buffer for numeric conversions */
-
-	/* `basefix' is used to avoid `if' tests in the integer scanner */
-	static short basefix[17] =
-		{ 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
-
-	inr = strlen(inp);
-	
-	nassigned = 0;
-	nconversions = 0;
-	nread = 0;
-	base = 0;		/* XXX just to keep gcc happy */
-	ccfn = NULL;		/* XXX just to keep gcc happy */
-	for (;;) {
-		c = *fmt++;
-		if (c == 0)
-			return (nassigned);
-		if (isspace(c)) {
-			while (inr > 0 && isspace(*inp))
-				nread++, inr--, inp++;
-			continue;
-		}
-		if (c != '%')
-			goto literal;
-		width = 0;
-		flags = 0;
-		/*
-		 * switch on the format.  continue if done;
-		 * break once format type is derived.
-		 */
-again:		c = *fmt++;
-		switch (c) {
-		case '%':
-literal:
-			if (inr <= 0)
-				goto input_failure;
-			if (*inp != c)
-				goto match_failure;
-			inr--, inp++;
-			nread++;
-			continue;
-
-		case '*':
-			flags |= SUPPRESS;
-			goto again;
-		case 'l':
-			flags |= LONG;
-			goto again;
-		case 'q':
-			flags |= QUAD;
-			goto again;
-		case 'h':
-			flags |= SHORT;
-			goto again;
-
-		case '0': case '1': case '2': case '3': case '4':
-		case '5': case '6': case '7': case '8': case '9':
-			width = width * 10 + c - '0';
-			goto again;
-
-		/*
-		 * Conversions.
-		 *
-		 */
-		case 'd':
-			c = CT_INT;
-			ccfn = (ccfntype)strtoq;
-			base = 10;
-			break;
-
-		case 'i':
-			c = CT_INT;
-			ccfn = (ccfntype)strtoq;
-			base = 0;
-			break;
-
-		case 'o':
-			c = CT_INT;
-			ccfn = strtouq;
-			base = 8;
-			break;
-
-		case 'u':
-			c = CT_INT;
-			ccfn = strtouq;
-			base = 10;
-			break;
-
-		case 'x':
-			flags |= PFXOK;	/* enable 0x prefixing */
-			c = CT_INT;
-			ccfn = strtouq;
-			base = 16;
-			break;
-
-		case 's':
-			c = CT_STRING;
-			break;
-
-		case '[':
-			fmt = __sccl(ccltab, fmt);
-			flags |= NOSKIP;
-			c = CT_CCL;
-			break;
-
-		case 'c':
-			flags |= NOSKIP;
-			c = CT_CHAR;
-			break;
-
-		case 'p':	/* pointer format is like hex */
-			flags |= POINTER | PFXOK;
-			c = CT_INT;
-			ccfn = strtouq;
-			base = 16;
-			break;
-
-		case 'n':
-			nconversions++;
-			if (flags & SUPPRESS)	/* ??? */
-				continue;
-			if (flags & SHORT)
-				*va_arg(ap, short *) = nread;
-			else if (flags & LONG)
-				*va_arg(ap, long *) = nread;
-			else if (flags & QUAD)
-				*va_arg(ap, quad_t *) = nread;
-			else
-				*va_arg(ap, int *) = nread;
-			continue;
-		}
-
-		/*
-		 * We have a conversion that requires input.
-		 */
-		if (inr <= 0)
-			goto input_failure;
-
-		/*
-		 * Consume leading white space, except for formats
-		 * that suppress this.
-		 */
-		if ((flags & NOSKIP) == 0) {
-			while (isspace(*inp)) {
-				nread++;
-				if (--inr > 0)
-					inp++;
-				else 
-					goto input_failure;
-			}
-			/*
-			 * Note that there is at least one character in
-			 * the buffer, so conversions that do not set NOSKIP
-			 * can no longer result in an input failure.
-			 */
-		}
-
-		/*
-		 * Do the conversion.
-		 */
-		switch (c) {
-
-		case CT_CHAR:
-			/* scan arbitrary characters (sets NOSKIP) */
-			if (width == 0)
-				width = 1;
-			if (flags & SUPPRESS) {
-				size_t sum = 0;
-				for (;;) {
-					if ((n = inr) < width) {
-						sum += n;
-						width -= n;
-						inp += n;
-						if (sum == 0)
-							goto input_failure;
-						break;
-					} else {
-						sum += width;
-						inr -= width;
-						inp += width;
-						break;
-					}
-				}
-				nread += sum;
-			} else {
-				bcopy(inp, va_arg(ap, char *), width);
-				inr -= width;
-				inp += width;
-				nread += width;
-				nassigned++;
-			}
-			nconversions++;
-			break;
-
-		case CT_CCL:
-			/* scan a (nonempty) character class (sets NOSKIP) */
-			if (width == 0)
-				width = (size_t)~0;	/* `infinity' */
-			/* take only those things in the class */
-			if (flags & SUPPRESS) {
-				n = 0;
-				while (ccltab[(unsigned char)*inp]) {
-					n++, inr--, inp++;
-					if (--width == 0)
-						break;
-					if (inr <= 0) {
-						if (n == 0)
-							goto input_failure;
-						break;
-					}
-				}
-				if (n == 0)
-					goto match_failure;
-			} else {
-				p0 = p = va_arg(ap, char *);
-				while (ccltab[(unsigned char)*inp]) {
-					inr--;
-					*p++ = *inp++;
-					if (--width == 0)
-						break;
-					if (inr <= 0) {
-						if (p == p0)
-							goto input_failure;
-						break;
-					}
-				}
-				n = p - p0;
-				if (n == 0)
-					goto match_failure;
-				*p = 0;
-				nassigned++;
-			}
-			nread += n;
-			nconversions++;
-			break;
-
-		case CT_STRING:
-			/* like CCL, but zero-length string OK, & no NOSKIP */
-			if (width == 0)
-				width = (size_t)~0;
-			if (flags & SUPPRESS) {
-				n = 0;
-				while (!isspace(*inp)) {
-					n++, inr--, inp++;
-					if (--width == 0)
-						break;
-					if (inr <= 0)
-						break;
-				}
-				nread += n;
-			} else {
-				p0 = p = va_arg(ap, char *);
-				while (!isspace(*inp)) {
-					inr--;
-					*p++ = *inp++;
-					if (--width == 0)
-						break;
-					if (inr <= 0)
-						break;
-				}
-				*p = 0;
-				nread += p - p0;
-				nassigned++;
-			}
-			nconversions++;
-			continue;
-
-		case CT_INT:
-			/* scan an integer as if by strtoq/strtouq */
-#ifdef hardway
-			if (width == 0 || width > sizeof(buf) - 1)
-				width = sizeof(buf) - 1;
-#else
-			/* size_t is unsigned, hence this optimisation */
-			if (--width > sizeof(buf) - 2)
-				width = sizeof(buf) - 2;
-			width++;
-#endif
-			flags |= SIGNOK | NDIGITS | NZDIGITS;
-			for (p = buf; width; width--) {
-				c = *inp;
-				/*
-				 * Switch on the character; `goto ok'
-				 * if we accept it as a part of number.
-				 */
-				switch (c) {
-
-				/*
-				 * The digit 0 is always legal, but is
-				 * special.  For %i conversions, if no
-				 * digits (zero or nonzero) have been
-				 * scanned (only signs), we will have
-				 * base==0.  In that case, we should set
-				 * it to 8 and enable 0x prefixing.
-				 * Also, if we have not scanned zero digits
-				 * before this, do not turn off prefixing
-				 * (someone else will turn it off if we
-				 * have scanned any nonzero digits).
-				 */
-				case '0':
-					if (base == 0) {
-						base = 8;
-						flags |= PFXOK;
-					}
-					if (flags & NZDIGITS)
-					    flags &= ~(SIGNOK|NZDIGITS|NDIGITS);
-					else
-					    flags &= ~(SIGNOK|PFXOK|NDIGITS);
-					goto ok;
-
-				/* 1 through 7 always legal */
-				case '1': case '2': case '3':
-				case '4': case '5': case '6': case '7':
-					base = basefix[base];
-					flags &= ~(SIGNOK | PFXOK | NDIGITS);
-					goto ok;
-
-				/* digits 8 and 9 ok iff decimal or hex */
-				case '8': case '9':
-					base = basefix[base];
-					if (base <= 8)
-						break;	/* not legal here */
-					flags &= ~(SIGNOK | PFXOK | NDIGITS);
-					goto ok;
-
-				/* letters ok iff hex */
-				case 'A': case 'B': case 'C':
-				case 'D': case 'E': case 'F':
-				case 'a': case 'b': case 'c':
-				case 'd': case 'e': case 'f':
-					/* no need to fix base here */
-					if (base <= 10)
-						break;	/* not legal here */
-					flags &= ~(SIGNOK | PFXOK | NDIGITS);
-					goto ok;
-
-				/* sign ok only as first character */
-				case '+': case '-':
-					if (flags & SIGNOK) {
-						flags &= ~SIGNOK;
-						goto ok;
-					}
-					break;
-
-				/* x ok iff flag still set & 2nd char */
-				case 'x': case 'X':
-					if (flags & PFXOK && p == buf + 1) {
-						base = 16;	/* if %i */
-						flags &= ~PFXOK;
-						goto ok;
-					}
-					break;
-				}
-
-				/*
-				 * If we got here, c is not a legal character
-				 * for a number.  Stop accumulating digits.
-				 */
-				break;
-		ok:
-				/*
-				 * c is legal: store it and look at the next.
-				 */
-				*p++ = c;
-				if (--inr > 0)
-					inp++;
-				else 
-					break;		/* end of input */
-			}
-			/*
-			 * If we had only a sign, it is no good; push
-			 * back the sign.  If the number ends in `x',
-			 * it was [sign] '0' 'x', so push back the x
-			 * and treat it as [sign] '0'.
-			 */
-			if (flags & NDIGITS) {
-				if (p > buf) {
-					inp--;
-					inr++;
-				}
-				goto match_failure;
-			}
-			c = ((u_char *)p)[-1];
-			if (c == 'x' || c == 'X') {
-				--p;
-				inp--;
-				inr++;
-			}
-			if ((flags & SUPPRESS) == 0) {
-				u_quad_t res;
-
-				*p = 0;
-				res = (*ccfn)(buf, (char **)NULL, base);
-				if (flags & POINTER)
-					*va_arg(ap, void **) =
-						(void *)(uintptr_t)res;
-				else if (flags & SHORT)
-					*va_arg(ap, short *) = res;
-				else if (flags & LONG)
-					*va_arg(ap, long *) = res;
-				else if (flags & QUAD)
-					*va_arg(ap, quad_t *) = res;
-				else
-					*va_arg(ap, int *) = res;
-				nassigned++;
-			}
-			nread += p - buf;
-			nconversions++;
-			break;
-
-		}
-	}
-input_failure:
-	return (nconversions != 0 ? nassigned : -1);
-match_failure:
-	return (nassigned);
-}
-
-
-/*
- * Fill in the given table from the scanset at the given format
- * (just after `[').  Return a pointer to the character past the
- * closing `]'.  The table has a 1 wherever characters should be
- * considered part of the scanset.
- */
-static const u_char *
-__sccl(char *tab, const u_char *fmt)
-{
-	int c, n, v;
-
-	/* first `clear' the whole table */
-	c = *fmt++;		/* first char hat => negated scanset */
-	if (c == '^') {
-		v = 1;		/* default => accept */
-		c = *fmt++;	/* get new first char */
-	} else
-		v = 0;		/* default => reject */
-
-	/* XXX: Will not work if sizeof(tab*) > sizeof(char) */
-	for (n = 0; n < 256; n++)
-		     tab[n] = v;	/* memset(tab, v, 256) */
-
-	if (c == 0)
-		return (fmt - 1);/* format ended before closing ] */
-
-	/*
-	 * Now set the entries corresponding to the actual scanset
-	 * to the opposite of the above.
-	 *
-	 * The first character may be ']' (or '-') without being special;
-	 * the last character may be '-'.
-	 */
-	v = 1 - v;
-	for (;;) {
-		tab[c] = v;		/* take character c */
-doswitch:
-		n = *fmt++;		/* and examine the next */
-		switch (n) {
-
-		case 0:			/* format ended too soon */
-			return (fmt - 1);
-
-		case '-':
-			/*
-			 * A scanset of the form
-			 *	[01+-]
-			 * is defined as `the digit 0, the digit 1,
-			 * the character +, the character -', but
-			 * the effect of a scanset such as
-			 *	[a-zA-Z0-9]
-			 * is implementation defined.  The V7 Unix
-			 * scanf treats `a-z' as `the letters a through
-			 * z', but treats `a-a' as `the letter a, the
-			 * character -, and the letter a'.
-			 *
-			 * For compatibility, the `-' is not considerd
-			 * to define a range if the character following
-			 * it is either a close bracket (required by ANSI)
-			 * or is not numerically greater than the character
-			 * we just stored in the table (c).
-			 */
-			n = *fmt;
-			if (n == ']' || n < c) {
-				c = '-';
-				break;	/* resume the for(;;) */
-			}
-			fmt++;
-			/* fill in the range */
-			do {
-			    tab[++c] = v;
-			} while (c < n);
-			c = n;
-			/*
-			 * Alas, the V7 Unix scanf also treats formats
-			 * such as [a-c-e] as `the letters a through e'.
-			 * This too is permitted by the standard....
-			 */
-			goto doswitch;
-			break;
-
-		case ']':		/* end of scanset */
-			return (fmt);
-
-		default:		/* just another character */
-			c = n;
-			break;
-		}
-	}
-	/* NOTREACHED */
-}
-
-/*
-int 
-sscanf(const char *ibuf, const char *fmt, ...)
-{
-	va_list ap;
-	int ret;
-	
-	va_start(ap, fmt);
-	ret = vsscanf(ibuf, fmt, ap);
-	va_end(ap);
-	
-	return(ret);
-}
-*/
-
-#ifdef __cplusplus
-}
-#endif
diff --git a/thirdparty/thekla_atlas/nvimage/BitMap.cpp b/thirdparty/thekla_atlas/nvimage/BitMap.cpp
deleted file mode 100644
index 8cc49644ea..0000000000
--- a/thirdparty/thekla_atlas/nvimage/BitMap.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "BitMap.h"
-
-using namespace nv;
-
-void BitMap::resize(uint w, uint h, bool initValue)
-{
-    BitArray tmp(w*h);
-
-    if (initValue) tmp.setAll();
-    else tmp.clearAll();
-
-    // @@ Copying one bit at a time. This could be much faster.
-    for (uint y = 0; y < m_height; y++)
-    {
-        for (uint x = 0; x < m_width; x++)
-        {
-            //tmp.setBitAt(y*w + x, bitAt(x, y));
-            if (bitAt(x, y) != initValue) tmp.toggleBitAt(y*w + x);
-        }
-    }
-
-    swap(m_bitArray, tmp);
-    m_width = w;
-    m_height = h;
-}
diff --git a/thirdparty/thekla_atlas/nvimage/BitMap.h b/thirdparty/thekla_atlas/nvimage/BitMap.h
deleted file mode 100644
index a285321176..0000000000
--- a/thirdparty/thekla_atlas/nvimage/BitMap.h
+++ /dev/null
@@ -1,87 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_IMAGE_BITMAP_H
-#define NV_IMAGE_BITMAP_H
-
-#include "nvimage.h"
-
-#include "nvcore/BitArray.h"
-
-namespace nv 
-{
-    /// Bit map. This should probably be called BitImage.
-    class NVIMAGE_CLASS BitMap
-    {
-    public:
-        BitMap() : m_width(0), m_height(0) {}
-        BitMap(uint w, uint h) : m_width(w), m_height(h), m_bitArray(w*h) {}
-
-        uint width() const { return m_width; }
-        uint height() const { return m_height; }
-
-        void resize(uint w, uint h, bool initValue);
-
-        bool bitAt(uint x, uint y) const
-        {
-            nvDebugCheck(x < m_width && y < m_height);
-            return m_bitArray.bitAt(y * m_width + x);
-        }
-        bool bitAt(uint idx) const
-        {
-            return m_bitArray.bitAt(idx);
-        }
-
-        void setBitAt(uint x, uint y)
-        {
-            nvDebugCheck(x < m_width && y < m_height);
-            m_bitArray.setBitAt(y * m_width + x);
-        }
-        void setBitAt(uint idx)
-        {
-            m_bitArray.setBitAt(idx);
-        }
-
-        void clearBitAt(uint x, uint y)
-        {
-            nvDebugCheck(x < m_width && y < m_height);
-            m_bitArray.clearBitAt(y * m_width + x);
-        }
-        void clearBitAt(uint idx)
-        {
-            m_bitArray.clearBitAt(idx);
-        }
-
-        void clearAll()
-        {
-            m_bitArray.clearAll();
-        }
-
-        void setAll()
-        {
-            m_bitArray.setAll();
-        }
-
-        void toggleAll()
-        {
-            m_bitArray.toggleAll();
-        }
-
-        friend void swap(BitMap & a, BitMap & b)
-        {
-            nvCheck(a.m_width == b.m_width);
-            nvCheck(a.m_height == b.m_height);
-            swap(a.m_bitArray, b.m_bitArray);
-        }
-
-    private:
-
-        uint m_width;
-        uint m_height;
-        BitArray m_bitArray;
-
-    };
-
-} // nv namespace
-
-#endif // NV_IMAGE_BITMAP_H
diff --git a/thirdparty/thekla_atlas/nvimage/Image.cpp b/thirdparty/thekla_atlas/nvimage/Image.cpp
deleted file mode 100644
index 8c0cbcf4e3..0000000000
--- a/thirdparty/thekla_atlas/nvimage/Image.cpp
+++ /dev/null
@@ -1,210 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "Image.h"
-//#include "ImageIO.h"
-
-#include "nvmath/Color.h"
-
-#include "nvcore/Debug.h"
-#include "nvcore/Ptr.h"
-#include "nvcore/Utils.h" // swap
-#include "nvcore/Memory.h" // realloc, free
-
-#include <string.h> // memcpy
-
-
-using namespace nv;
-
-Image::Image() : m_width(0), m_height(0), m_format(Format_RGB), m_data(NULL)
-{
-}
-
-Image::Image(const Image & img) : m_data(NULL)
-{
-	allocate(img.m_width, img.m_height, img.m_depth);
-    m_format = img.m_format;
-    memcpy(m_data, img.m_data, sizeof(Color32) * m_width * m_height * m_depth);
-}
-
-Image::~Image()
-{
-    free();
-}
-
-const Image & Image::operator=(const Image & img)
-{
-    allocate(img.m_width, img.m_height, m_depth);
-    m_format = img.m_format;
-    memcpy(m_data, img.m_data, sizeof(Color32) * m_width * m_height * m_depth);
-    return *this;
-}
-
-
-void Image::allocate(uint w, uint h, uint d/*= 1*/)
-{
-    m_width = w;
-    m_height = h;
-	m_depth = d;
-    m_data = realloc<Color32>(m_data, w * h * d);
-}
-
-void Image::acquire(Color32 * data, uint w, uint h, uint d/*= 1*/)
-{
-    free();
-    m_width = w;
-    m_height = h;
-    m_depth = d;
-    m_data = data;
-}
-
-void Image::resize(uint w, uint h, uint d/*= 1*/) {
-
-    Image img;
-    img.allocate(w, h, d);
-
-    Color32 background(0,0,0,0);
-
-    // Copy image.
-    uint x, y, z;
-    for(z = 0; z < min(d, m_depth); z++) {
-        for(y = 0; y < min(h, m_height); y++) {
-            for(x = 0; x < min(w, m_width); x++) {
-                img.pixel(x, y, z) = pixel(x, y, z);
-            }
-            for(; x < w; x++) {
-                img.pixel(x, y, z) = background;
-            }
-        }
-        for(; y < h; y++) {
-            for(x = 0; x < w; x++) {
-                img.pixel(x, y, z) = background;
-            }
-        }
-    }
-    for(; z < d; z++) {
-        for(y = 0; y < h; y++) {
-            for(x = 0; x < w; x++) {
-                img.pixel(x, y, z) = background;
-            }
-        }
-    }
-
-    swap(m_width, img.m_width);
-    swap(m_height, img.m_height);
-	swap(m_depth, img.m_depth);
-    swap(m_format, img.m_format);
-    swap(m_data, img.m_data);
-}
-
-/*bool Image::load(const char * name)
-{
-    free();
-
-    AutoPtr<Image> img(ImageIO::load(name));
-    if (img == NULL) {
-        return false;
-    }
-
-    swap(m_width, img->m_width);
-    swap(m_height, img->m_height);
-	swap(m_depth, img->m_depth);
-    swap(m_format, img->m_format);
-    swap(m_data, img->m_data);
-
-    return true;
-}*/
-
-void Image::wrap(void * data, uint w, uint h, uint d)
-{
-    free();
-    m_data = (Color32 *)data;
-    m_width = w;
-    m_height = h;
-	m_depth = d;
-}
-
-void Image::unwrap()
-{
-    m_data = NULL;
-    m_width = 0;
-    m_height = 0;
-	m_depth = 0;
-}
-
-
-void Image::free()
-{
-    ::free(m_data);
-    m_data = NULL;
-}
-
-
-uint Image::width() const
-{
-    return m_width;
-}
-
-uint Image::height() const
-{
-    return m_height;
-}
-
-uint Image::depth() const
-{
-	return m_depth;
-}
-
-const Color32 * Image::scanline(uint h) const
-{
-    nvDebugCheck(h < m_height);
-    return m_data + h * m_width;
-}
-
-Color32 * Image::scanline(uint h)
-{
-    nvDebugCheck(h < m_height);
-    return m_data + h * m_width;
-}
-
-const Color32 * Image::pixels() const
-{
-    return m_data;
-}
-
-Color32 * Image::pixels()
-{
-    return m_data;
-}
-
-const Color32 & Image::pixel(uint idx) const
-{
-    nvDebugCheck(idx < m_width * m_height * m_depth);
-    return m_data[idx];
-}
-
-Color32 & Image::pixel(uint idx)
-{
-    nvDebugCheck(idx < m_width * m_height * m_depth);
-    return m_data[idx];
-}
-
-
-Image::Format Image::format() const
-{
-    return m_format;
-}
-
-void Image::setFormat(Image::Format f)
-{
-    m_format = f;
-}
-
-void Image::fill(Color32 c)
-{
-    const uint size = m_width * m_height * m_depth;
-    for (uint i = 0; i < size; ++i)
-    {
-        m_data[i] = c;
-    }
-}
-
diff --git a/thirdparty/thekla_atlas/nvimage/Image.h b/thirdparty/thekla_atlas/nvimage/Image.h
deleted file mode 100644
index 4c5748cb00..0000000000
--- a/thirdparty/thekla_atlas/nvimage/Image.h
+++ /dev/null
@@ -1,89 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_IMAGE_IMAGE_H
-#define NV_IMAGE_IMAGE_H
-
-#include "nvimage.h"
-#include "nvcore/Debug.h"
-
-namespace nv
-{
-    class Color32;
-
-    /// 32 bit RGBA image.
-    class NVIMAGE_CLASS Image
-    {
-    public:
-
-        enum Format 
-        {
-            Format_RGB,
-            Format_ARGB,
-        };
-
-        Image();
-        Image(const Image & img);
-        ~Image();
-
-        const Image & operator=(const Image & img);
-
-
-        void allocate(uint w, uint h, uint d = 1);
-        void acquire(Color32 * data, uint w, uint h, uint d = 1);
-        //bool load(const char * name);
-
-        void resize(uint w, uint h, uint d = 1);
-
-        void wrap(void * data, uint w, uint h, uint d = 1);
-        void unwrap();
-
-        uint width() const;
-        uint height() const;
-        uint depth() const;
-
-        const Color32 * scanline(uint h) const;
-        Color32 * scanline(uint h);
-
-        const Color32 * pixels() const;
-        Color32 * pixels();
-
-        const Color32 & pixel(uint idx) const;
-        Color32 & pixel(uint idx);
-
-        const Color32 & pixel(uint x, uint y, uint z = 0) const;
-        Color32 & pixel(uint x, uint y,  uint z = 0);
-
-        Format format() const;
-        void setFormat(Format f);
-
-        void fill(Color32 c);
-
-    private:
-        void free();
-
-    private:
-        uint m_width;
-        uint m_height;
-        uint m_depth;
-        Format m_format;
-        Color32 * m_data;
-    };
-
-
-    inline const Color32 & Image::pixel(uint x, uint y, uint z) const
-    {
-        nvDebugCheck(x < m_width && y < m_height && z < m_depth);
-        return pixel((z * m_height + y) * m_width + x);
-    }
-
-    inline Color32 & Image::pixel(uint x, uint y, uint z)
-    {
-        nvDebugCheck(x < m_width && y < m_height && z < m_depth);
-        return pixel((z * m_height + y) * m_width + x);
-    }
-
-} // nv namespace
-
-
-#endif // NV_IMAGE_IMAGE_H
diff --git a/thirdparty/thekla_atlas/nvimage/nvimage.h b/thirdparty/thekla_atlas/nvimage/nvimage.h
deleted file mode 100644
index 5c89bd4726..0000000000
--- a/thirdparty/thekla_atlas/nvimage/nvimage.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_IMAGE_H
-#define NV_IMAGE_H
-
-#include "nvcore/nvcore.h"
-#include "nvcore/Debug.h" // nvDebugCheck
-#include "nvcore/Utils.h" // isPowerOfTwo
-
-// Function linkage
-#if NVIMAGE_SHARED
-#ifdef NVIMAGE_EXPORTS
-#define NVIMAGE_API DLL_EXPORT
-#define NVIMAGE_CLASS DLL_EXPORT_CLASS
-#else
-#define NVIMAGE_API DLL_IMPORT
-#define NVIMAGE_CLASS DLL_IMPORT
-#endif
-#else
-#define NVIMAGE_API
-#define NVIMAGE_CLASS
-#endif
-
-
-namespace nv {
-
-    // Some utility functions:
-
-    inline uint computeBitPitch(uint w, uint bitsize, uint alignmentInBits)
-    {
-        nvDebugCheck(isPowerOfTwo(alignmentInBits));
-
-        return ((w * bitsize +  alignmentInBits - 1) / alignmentInBits) * alignmentInBits;
-    }
-
-    inline uint computeBytePitch(uint w, uint bitsize, uint alignmentInBytes)
-    {
-        uint pitch = computeBitPitch(w, bitsize, 8*alignmentInBytes);
-        nvDebugCheck((pitch & 7) == 0);
-
-        return (pitch + 7) / 8;
-    }
-
-
-} // nv namespace
-
-#endif // NV_IMAGE_H
diff --git a/thirdparty/thekla_atlas/nvmath/Basis.cpp b/thirdparty/thekla_atlas/nvmath/Basis.cpp
deleted file mode 100644
index 0824179633..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Basis.cpp
+++ /dev/null
@@ -1,270 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "Basis.h"
-
-using namespace nv;
-
-
-/// Normalize basis vectors.
-void Basis::normalize(float epsilon /*= NV_EPSILON*/)
-{
-    normal = ::normalizeSafe(normal, Vector3(0.0f), epsilon);
-    tangent = ::normalizeSafe(tangent, Vector3(0.0f), epsilon);
-    bitangent = ::normalizeSafe(bitangent, Vector3(0.0f), epsilon);
-}
-
-
-/// Gram-Schmidt orthogonalization.
-/// @note Works only if the vectors are close to orthogonal.
-void Basis::orthonormalize(float epsilon /*= NV_EPSILON*/)
-{
-    // N' = |N|
-    // T' = |T - (N' dot T) N'|
-    // B' = |B - (N' dot B) N' - (T' dot B) T'|
-
-    normal = ::normalize(normal, epsilon);
-
-    tangent -= normal * dot(normal, tangent);
-    tangent = ::normalize(tangent, epsilon);
-
-    bitangent -= normal * dot(normal, bitangent);
-    bitangent -= tangent * dot(tangent, bitangent);
-    bitangent = ::normalize(bitangent, epsilon);
-}
-
-
-
-
-/// Robust orthonormalization. 
-/// Returns an orthonormal basis even when the original is degenerate.
-void Basis::robustOrthonormalize(float epsilon /*= NV_EPSILON*/)
-{
-    // Normalize all vectors.
-    normalize(epsilon);
-
-    if (lengthSquared(normal) < epsilon*epsilon)
-    {
-        // Build normal from tangent and bitangent.
-        normal = cross(tangent, bitangent);
-
-        if (lengthSquared(normal) < epsilon*epsilon)
-        {
-            // Arbitrary basis.
-            tangent   = Vector3(1, 0, 0);
-            bitangent = Vector3(0, 1, 0);
-            normal    = Vector3(0, 0, 1);
-            return;
-        }
-
-        normal = nv::normalize(normal, epsilon);
-    }
-
-    // Project tangents to normal plane.
-    tangent -= normal * dot(normal, tangent);
-    bitangent -= normal * dot(normal, bitangent);
-
-    if (lengthSquared(tangent) < epsilon*epsilon)
-    {
-        if (lengthSquared(bitangent) < epsilon*epsilon)
-        {
-            // Arbitrary basis.
-            buildFrameForDirection(normal);
-        }
-        else
-        {
-            // Build tangent from bitangent.
-            bitangent = nv::normalize(bitangent, epsilon);
-
-            tangent = cross(bitangent, normal);
-            nvDebugCheck(isNormalized(tangent, epsilon));
-        }
-    }
-    else
-    {
-        tangent = nv::normalize(tangent, epsilon);
-#if 0
-        bitangent -= tangent * dot(tangent, bitangent);
-
-        if (lengthSquared(bitangent) < epsilon*epsilon)
-        {
-            bitangent = cross(tangent, normal);
-            nvDebugCheck(isNormalized(bitangent, epsilon));
-        }
-        else
-        {
-            bitangent = nv::normalize(bitangent, epsilon);
-        }
-#else
-        if (lengthSquared(bitangent) < epsilon*epsilon)
-        {
-            // Build bitangent from tangent.
-            bitangent = cross(tangent, normal);
-            nvDebugCheck(isNormalized(bitangent, epsilon));
-        }
-        else
-        {
-            bitangent = nv::normalize(bitangent, epsilon);
-
-            // At this point tangent and bitangent are orthogonal to normal, but we don't know whether their orientation.
-            
-            Vector3 bisector;
-            if (lengthSquared(tangent + bitangent) < epsilon*epsilon)
-            {
-                bisector = tangent;
-            }
-            else
-            {
-                bisector = nv::normalize(tangent + bitangent);
-            }
-            Vector3 axis = nv::normalize(cross(bisector, normal));
-
-            //nvDebugCheck(isNormalized(axis, epsilon));
-            nvDebugCheck(equal(dot(axis, tangent), -dot(axis, bitangent), epsilon));
-
-            if (dot(axis, tangent) > 0)
-            {
-                tangent = bisector + axis;
-                bitangent = bisector - axis;
-            }
-            else
-            {
-                tangent = bisector - axis;
-                bitangent = bisector + axis;
-            }
-
-            // Make sure the resulting tangents are still perpendicular to the normal.
-            tangent -= normal * dot(normal, tangent);
-            bitangent -= normal * dot(normal, bitangent);
-
-            // Double check.
-            nvDebugCheck(equal(dot(normal, tangent), 0.0f, epsilon));
-            nvDebugCheck(equal(dot(normal, bitangent), 0.0f, epsilon));
-
-            // Normalize.
-            tangent = nv::normalize(tangent);
-            bitangent = nv::normalize(bitangent);
-
-            // If tangent and bitangent are not orthogonal, then derive bitangent from tangent, just in case...
-            if (!equal(dot(tangent, bitangent), 0.0f, epsilon)) {
-                bitangent = cross(tangent, normal);
-                bitangent = nv::normalize(bitangent);
-            }
-        }
-#endif
-    }
-
-    /*// Check vector lengths.
-    if (!isNormalized(normal, epsilon))
-    {
-    nvDebug("%f %f %f\n", normal.x, normal.y, normal.z);
-    nvDebug("%f %f %f\n", tangent.x, tangent.y, tangent.z);
-    nvDebug("%f %f %f\n", bitangent.x, bitangent.y, bitangent.z);
-    }*/
-
-    nvDebugCheck(isNormalized(normal, epsilon));
-    nvDebugCheck(isNormalized(tangent, epsilon));
-    nvDebugCheck(isNormalized(bitangent, epsilon));
-
-    // Check vector angles.
-    nvDebugCheck(equal(dot(normal, tangent), 0.0f, epsilon));
-    nvDebugCheck(equal(dot(normal, bitangent), 0.0f, epsilon));
-    nvDebugCheck(equal(dot(tangent, bitangent), 0.0f, epsilon));
-
-    // Check vector orientation.
-    const float det = dot(cross(normal, tangent), bitangent);
-    nvDebugCheck(equal(det, 1.0f, epsilon) || equal(det, -1.0f, epsilon));
-}
-
-
-/// Build an arbitrary frame for the given direction.
-void Basis::buildFrameForDirection(Vector3::Arg d, float angle/*= 0*/)
-{
-    nvCheck(isNormalized(d));
-    normal = d;
-
-    // Choose minimum axis.
-    if (fabsf(normal.x) < fabsf(normal.y) && fabsf(normal.x) < fabsf(normal.z))
-    {
-        tangent = Vector3(1, 0, 0);
-    }
-    else if (fabsf(normal.y) < fabsf(normal.z))
-    {
-        tangent = Vector3(0, 1, 0);
-    }
-    else
-    {
-        tangent = Vector3(0, 0, 1);
-    }
-
-    // Ortogonalize
-    tangent -= normal * dot(normal, tangent);
-    tangent = ::normalize(tangent);
-
-    bitangent = cross(normal, tangent);
-
-    // Rotate frame around normal according to angle.
-    if (angle != 0.0f) {
-        float c = cosf(angle);
-        float s = sinf(angle);
-        Vector3 tmp = c * tangent - s * bitangent;
-        bitangent = s * tangent + c * bitangent;
-        tangent = tmp;
-    }
-}
-
-bool Basis::isValid() const
-{
-    if (equal(normal, Vector3(0.0f))) return false;
-    if (equal(tangent, Vector3(0.0f))) return false;
-    if (equal(bitangent, Vector3(0.0f))) return false;
-
-    if (equal(determinant(), 0.0f)) return false;
-
-    return true;
-}
-
-
-/// Transform by this basis. (From this basis to object space).
-Vector3 Basis::transform(Vector3::Arg v) const
-{
-    Vector3 o = tangent * v.x;
-    o += bitangent * v.y;
-    o += normal * v.z;
-    return o;
-}
-
-/// Transform by the transpose. (From object space to this basis).
-Vector3 Basis::transformT(Vector3::Arg v)
-{
-    return Vector3(dot(tangent, v), dot(bitangent, v), dot(normal, v));
-}
-
-/// Transform by the inverse. (From object space to this basis).
-/// @note Uses Cramer's rule so the inverse is not accurate if the basis is ill-conditioned.
-Vector3 Basis::transformI(Vector3::Arg v) const
-{
-    const float det = determinant();
-    nvDebugCheck(!equal(det, 0.0f, 0.0f));
-
-    const float idet = 1.0f / det;
-
-    // Rows of the inverse matrix.
-    Vector3 r0(
-        (bitangent.y * normal.z - bitangent.z * normal.y),
-        -(bitangent.x * normal.z - bitangent.z * normal.x),
-        (bitangent.x * normal.y - bitangent.y * normal.x));
-
-    Vector3 r1(
-        -(tangent.y * normal.z - tangent.z * normal.y),
-        (tangent.x * normal.z - tangent.z * normal.x),
-        -(tangent.x * normal.y - tangent.y * normal.x));
-
-    Vector3 r2(
-        (tangent.y * bitangent.z - tangent.z * bitangent.y),
-        -(tangent.x * bitangent.z - tangent.z * bitangent.x),
-        (tangent.x * bitangent.y - tangent.y * bitangent.x));
-
-    return Vector3(dot(v, r0), dot(v, r1), dot(v, r2)) * idet;
-}
-
-
diff --git a/thirdparty/thekla_atlas/nvmath/Basis.h b/thirdparty/thekla_atlas/nvmath/Basis.h
deleted file mode 100644
index e8146afdbe..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Basis.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_BASIS_H
-#define NV_MATH_BASIS_H
-
-#include "nvmath.h"
-#include "Vector.inl"
-#include "Matrix.h"
-
-namespace nv
-{
-
-    /// Basis class to compute tangent space basis, ortogonalizations and to
-    /// transform vectors from one space to another.
-    class Basis
-    {
-    public:
-
-        /// Create a null basis.
-        Basis() : tangent(0, 0, 0), bitangent(0, 0, 0), normal(0, 0, 0) {}
-
-        /// Create a basis given three vectors.
-        Basis(Vector3::Arg n, Vector3::Arg t, Vector3::Arg b) : tangent(t), bitangent(b), normal(n) {}
-
-        /// Create a basis with the given tangent vectors and the handness.
-        Basis(Vector3::Arg n, Vector3::Arg t, float sign)
-        {
-            build(n, t, sign);
-        }
-
-        NVMATH_API void normalize(float epsilon = NV_EPSILON);
-        NVMATH_API void orthonormalize(float epsilon = NV_EPSILON);
-        NVMATH_API void robustOrthonormalize(float epsilon = NV_EPSILON);
-        NVMATH_API void buildFrameForDirection(Vector3::Arg d, float angle = 0);
-
-        /// Calculate the determinant [ F G N ] to obtain the handness of the basis. 
-        float handness() const
-        {
-            return determinant() > 0.0f ? 1.0f : -1.0f;
-        }
-
-        /// Build a basis from 2 vectors and a handness flag.
-        void build(Vector3::Arg n, Vector3::Arg t, float sign)
-        {
-            normal = n;
-            tangent = t;
-            bitangent = sign * cross(t, n);
-        }
-
-        /// Compute the determinant of this basis.
-        float determinant() const
-        {
-            return 
-                tangent.x * bitangent.y * normal.z - tangent.z * bitangent.y * normal.x +
-                tangent.y * bitangent.z * normal.x - tangent.y * bitangent.x * normal.z + 
-                tangent.z * bitangent.x * normal.y - tangent.x * bitangent.z * normal.y;
-        }
-
-        bool isValid() const;
-
-        // Get transform matrix for this basis.
-        NVMATH_API Matrix matrix() const;
-
-        // Transform by this basis. (From this basis to object space).
-        NVMATH_API Vector3 transform(Vector3::Arg v) const;
-
-        // Transform by the transpose. (From object space to this basis).
-        NVMATH_API Vector3 transformT(Vector3::Arg v);
-
-        // Transform by the inverse. (From object space to this basis).
-        NVMATH_API Vector3 transformI(Vector3::Arg v) const;
-
-
-        Vector3 tangent;
-        Vector3 bitangent;
-        Vector3 normal;
-    };
-
-} // nv namespace
-
-#endif // NV_MATH_BASIS_H
diff --git a/thirdparty/thekla_atlas/nvmath/Box.cpp b/thirdparty/thekla_atlas/nvmath/Box.cpp
deleted file mode 100644
index 8f2014a077..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Box.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "Box.h"
-#include "Box.inl"
-#include "Sphere.h"
-
-using namespace nv;
-
-
-
-
-// Clip the given segment against this box.
-bool Box::clipSegment(const Vector3 & origin, const Vector3 & dir, float * t_near, float * t_far) const {
-
-	// Avoid aliasing.
-	float tnear = *t_near;
-	float tfar = *t_far;
-
-	// clip ray segment to box
-	for (int i = 0; i < 3; i++)
-	{
-		const float pos = origin.component[i] + tfar * dir.component[i];
-		const float dt = tfar - tnear;
-
-		if (dir.component[i] < 0) {
-			
-			// clip end point
-			if (pos < minCorner.component[i]) {
-                tfar = tnear + dt * (origin.component[i] - minCorner.component[i]) / (origin.component[i] - pos);
-			}
-			
-			// clip start point
-			if (origin.component[i] > maxCorner.component[i]) {
-				tnear = tnear + dt * (origin.component[i] - maxCorner.component[i]) / (tfar * dir.component[i]);
-			}
-		}
-		else {
-
-			// clip end point
-			if (pos > maxCorner.component[i]) {
-				tfar = tnear + dt * (maxCorner.component[i] - origin.component[i]) / (pos - origin.component[i]);
-			}
-
-			// clip start point
-			if (origin.component[i] < minCorner.component[i]) {
-				tnear = tnear + dt * (minCorner.component[i] - origin.component[i]) / (tfar * dir.component[i]);
-			}
-		}
-
-		if (tnear > tfar) {
-			// Clipped away.
-			return false;
-		}
-	}
-
-	// Return result.
-	*t_near = tnear;
-	*t_far = tfar;
-	return true;
-}
-
-
-float nv::distanceSquared(const Box &box, const Vector3 &point) {
-    Vector3 closest;
-
-    if (point.x < box.minCorner.x) closest.x = box.minCorner.x;
-    else if (point.x > box.maxCorner.x) closest.x = box.maxCorner.x;
-    else closest.x = point.x;
-
-    if (point.y < box.minCorner.y) closest.y = box.minCorner.y;
-    else if (point.y > box.maxCorner.y) closest.y = box.maxCorner.y;
-    else closest.y = point.y;
-
-    if (point.z < box.minCorner.z) closest.z = box.minCorner.z;
-    else if (point.z > box.maxCorner.z) closest.z = box.maxCorner.z;
-    else closest.z = point.z;
-
-    return lengthSquared(point - closest);
-}
-
-bool nv::overlap(const Box &box, const Sphere &sphere) {
-    return distanceSquared(box, sphere.center) < sphere.radius * sphere.radius;
-}
-
-
-bool nv::intersect(const Box & box, const Vector3 & p, const Vector3 & id, float * t /*= NULL*/) {
-    // Precompute these in ray structure?
-    int sdx = (id.x < 0);
-    int sdy = (id.y < 0);
-    int sdz = (id.z < 0);
-
-    float tmin = (box.corner(  sdx).x - p.x) * id.x;
-    float tmax = (box.corner(1-sdx).x - p.x) * id.x;
-    float tymin = (box.corner(  sdy).y - p.y) * id.y;
-    float tymax = (box.corner(1-sdy).y - p.y) * id.y;
-
-    if ((tmin > tymax) || (tymin > tmax)) 
-        return false;
-
-    if (tymin > tmin) tmin = tymin;
-    if (tymax < tmax) tmax = tymax;
-
-    float tzmin = (box.corner(  sdz).z - p.z) * id.z;
-    float tzmax = (box.corner(1-sdz).z - p.z) * id.z;
-
-    if ((tmin > tzmax) || (tzmin > tmax)) 
-        return false;
-
-    if (tzmin > tmin) tmin = tzmin;
-    if (tzmax < tmax) tmax = tzmax;
-
-    if (tmax < 0) 
-        return false;
-
-    if (t != NULL) *t = tmin;
-
-    return true;
-}
-
diff --git a/thirdparty/thekla_atlas/nvmath/Box.h b/thirdparty/thekla_atlas/nvmath/Box.h
deleted file mode 100644
index 19b5f2a3a5..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Box.h
+++ /dev/null
@@ -1,103 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_BOX_H
-#define NV_MATH_BOX_H
-
-#include "Vector.h"
-
-#include <float.h> // FLT_MAX
-
-namespace nv
-{
-    class Vector;
-    class Stream;
-    class Sphere;
-
-    // Axis Aligned Bounding Box.
-    class Box
-    {
-    public:
-
-        inline Box() {}
-        inline Box(const Box & b) : minCorner(b.minCorner), maxCorner(b.maxCorner) {}
-        inline Box(const Vector3 & mins, const Vector3 & maxs) : minCorner(mins), maxCorner(maxs) {}
-
-        Box & operator=(const Box & b);
-
-        operator const float * () const { return reinterpret_cast<const float *>(this); }
-
-        // Clear the bounds.
-        void clearBounds();
-
-        // min < max
-        bool isValid() const;
-
-        // Build a cube centered on center and with edge = 2*dist
-        void cube(const Vector3 & center, float dist);
-
-        // Build a box, given center and extents.
-        void setCenterExtents(const Vector3 & center, const Vector3 & extents);
-
-        // Get box center.
-        Vector3 center() const;
-
-        // Return extents of the box.
-        Vector3 extents() const;
-
-        // Return extents of the box.
-        float extents(uint axis) const;
-
-        // Add a point to this box.
-        void addPointToBounds(const Vector3 & p);
-
-        // Add a box to this box.
-        void addBoxToBounds(const Box & b);
-
-        // Add sphere to this box.
-        void addSphereToBounds(const Vector3 & p, float r);
-
-        // Translate box.
-        void translate(const Vector3 & v);
-
-        // Scale the box.
-        void scale(float s);
-
-        // Expand the box by a fixed amount.
-        void expand(float r);
-
-        // Get the area of the box.
-        float area() const;
- 
-        // Get the volume of the box.
-        float volume() const;
-
-        // Return true if the box contains the given point.
-        bool contains(const Vector3 & p) const;
-
-        // Split the given box in 8 octants and assign the ith one to this box.
-        void setOctant(const Box & box, const Vector3 & center, int i);
-
-
-        // Clip the given segment against this box.
-        bool clipSegment(const Vector3 & origin, const Vector3 & dir, float * t_near, float * t_far) const;
-
-
-        friend Stream & operator<< (Stream & s, Box & box);
-
-        const Vector3 & corner(int i) const { return (&minCorner)[i]; }
-
-        Vector3 minCorner;
-        Vector3 maxCorner;
-    };
-
-    float distanceSquared(const Box &box, const Vector3 &point);
-    bool overlap(const Box &box, const Sphere &sphere);
-
-    // p is ray origin, id is inverse ray direction.
-    bool intersect(const Box & box, const Vector3 & p, const Vector3 & id, float * t);
-
-} // nv namespace
-
-
-#endif // NV_MATH_BOX_H
diff --git a/thirdparty/thekla_atlas/nvmath/Box.inl b/thirdparty/thekla_atlas/nvmath/Box.inl
deleted file mode 100644
index dcfa70ff96..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Box.inl
+++ /dev/null
@@ -1,154 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_BOX_INL
-#define NV_MATH_BOX_INL
-
-#include "Box.h"
-#include "Vector.inl"
-
-#include <float.h> // FLT_MAX
-
-namespace nv
-{
-    // Default ctor.
-    //inline Box::Box() { };
-
-    // Copy ctor.
-    //inline Box::Box(const Box & b) : minCorner(b.minCorner), maxCorner(b.maxCorner) { }
-
-    // Init ctor.
-    //inline Box::Box(const Vector3 & mins, const Vector3 & maxs) : minCorner(mins), maxCorner(maxs) { }
-
-    // Assignment operator.
-    inline Box & Box::operator=(const Box & b) { minCorner = b.minCorner; maxCorner = b.maxCorner; return *this; }
-
-    // Clear the bounds.
-    inline void Box::clearBounds()
-    {
-        minCorner.set(FLT_MAX, FLT_MAX, FLT_MAX);
-        maxCorner.set(-FLT_MAX, -FLT_MAX, -FLT_MAX);
-    }
-
-    // min < max
-    inline bool Box::isValid() const
-    {
-        return minCorner.x <= maxCorner.x && minCorner.y <= maxCorner.y && minCorner.z <= maxCorner.z;
-    }
-
-    // Build a cube centered on center and with edge = 2*dist
-    inline void Box::cube(const Vector3 & center, float dist)
-    {
-        setCenterExtents(center, Vector3(dist));
-    }
-
-    // Build a box, given center and extents.
-    inline void Box::setCenterExtents(const Vector3 & center, const Vector3 & extents)
-    {
-        minCorner = center - extents;
-        maxCorner = center + extents;
-    }
-
-    // Get box center.
-    inline Vector3 Box::center() const
-    {
-        return (minCorner + maxCorner) * 0.5f;
-    }
-
-    // Return extents of the box.
-    inline Vector3 Box::extents() const
-    {
-        return (maxCorner - minCorner) * 0.5f;
-    }
-
-    // Return extents of the box.
-    inline float Box::extents(uint axis) const
-    {
-        nvDebugCheck(axis < 3);
-        if (axis == 0) return (maxCorner.x - minCorner.x) * 0.5f;
-        if (axis == 1) return (maxCorner.y - minCorner.y) * 0.5f;
-        if (axis == 2) return (maxCorner.z - minCorner.z) * 0.5f;
-        nvUnreachable();
-        return 0.0f;
-    }
-
-    // Add a point to this box.
-    inline void Box::addPointToBounds(const Vector3 & p)
-    {
-        minCorner = min(minCorner, p);
-        maxCorner = max(maxCorner, p);
-    }
-
-    // Add a box to this box.
-    inline void Box::addBoxToBounds(const Box & b)
-    {
-        minCorner = min(minCorner, b.minCorner);
-        maxCorner = max(maxCorner, b.maxCorner);
-    }
-
-    // Add sphere to this box.
-    inline void Box::addSphereToBounds(const Vector3 & p, float r) {
-        minCorner = min(minCorner, p - Vector3(r));
-        maxCorner = min(maxCorner, p + Vector3(r));
-    }
-
-    // Translate box.
-    inline void Box::translate(const Vector3 & v)
-    {
-        minCorner += v;
-        maxCorner += v;
-    }
-
-    // Scale the box.
-    inline void Box::scale(float s)
-    {
-        minCorner *= s;
-        maxCorner *= s;
-    }
-
-    // Expand the box by a fixed amount.
-    inline void Box::expand(float r) {
-        minCorner -= Vector3(r,r,r);
-        maxCorner += Vector3(r,r,r);
-    }
-
-    // Get the area of the box.
-    inline float Box::area() const
-    {
-        const Vector3 d = extents();
-        return 8.0f * (d.x*d.y + d.x*d.z + d.y*d.z);
-    }	
-
-    // Get the volume of the box.
-    inline float Box::volume() const
-    {
-        Vector3 d = extents();
-        return 8.0f * (d.x * d.y * d.z);
-    }
-
-    // Return true if the box contains the given point.
-    inline bool Box::contains(const Vector3 & p) const
-    {
-        return 
-            minCorner.x < p.x && minCorner.y < p.y && minCorner.z < p.z &&
-            maxCorner.x > p.x && maxCorner.y > p.y && maxCorner.z > p.z;
-    }
-
-    // Split the given box in 8 octants and assign the ith one to this box.
-    inline void Box::setOctant(const Box & box, const Vector3 & center, int i)
-    {
-        minCorner = box.minCorner;
-        maxCorner = box.maxCorner;
-
-        if (i & 4) minCorner.x = center.x;
-        else       maxCorner.x = center.x;
-        if (i & 2) minCorner.y = center.y;
-        else       maxCorner.y = center.y;
-        if (i & 1) minCorner.z = center.z;
-        else       maxCorner.z = center.z;
-    }
-
-} // nv namespace
-
-
-#endif // NV_MATH_BOX_INL
diff --git a/thirdparty/thekla_atlas/nvmath/Color.h b/thirdparty/thekla_atlas/nvmath/Color.h
deleted file mode 100644
index 5cdc374bd9..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Color.h
+++ /dev/null
@@ -1,150 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_COLOR_H
-#define NV_MATH_COLOR_H
-
-#include "nvmath.h"
-
-namespace nv
-{
-
-    /// 64 bit color stored as BGRA.
-    class NVMATH_CLASS Color64 
-    {
-    public:
-        Color64() { }
-        Color64(const Color64 & c) : u(c.u) { }
-        Color64(uint16 R, uint16 G, uint16 B, uint16 A) { setRGBA(R, G, B, A); }
-        explicit Color64(uint64 U) : u(U) { }
-
-        void setRGBA(uint16 R, uint16 G, uint16 B, uint16 A)
-        {
-            r = R;
-            g = G;
-            b = B;
-            a = A;
-        }
-
-        operator uint64 () const {
-            return u;
-        }
-
-        union {
-            struct {
-#if NV_LITTLE_ENDIAN
-                uint16 r, a, b, g;
-#else
-                uint16 a: 16;
-                uint16 r: 16;
-                uint16 g: 16;
-                uint16 b: 16;
-#endif
-            };
-            uint64 u;
-        };
-    };
-
-    /// 32 bit color stored as BGRA.
-    class NVMATH_CLASS Color32
-    {
-    public:
-        Color32() { }
-        Color32(const Color32 & c) : u(c.u) { }
-        Color32(uint8 R, uint8 G, uint8 B) { setRGBA(R, G, B, 0xFF); }
-        Color32(uint8 R, uint8 G, uint8 B, uint8 A) { setRGBA( R, G, B, A); }
-        //Color32(uint8 c[4]) { setRGBA(c[0], c[1], c[2], c[3]); }
-        //Color32(float R, float G, float B) { setRGBA(uint(R*255), uint(G*255), uint(B*255), 0xFF); }
-        //Color32(float R, float G, float B, float A) { setRGBA(uint(R*255), uint(G*255), uint(B*255), uint(A*255)); }
-        explicit Color32(uint32 U) : u(U) { }
-
-        void setRGBA(uint8 R, uint8 G, uint8 B, uint8 A)
-        {
-            r = R;
-            g = G;
-            b = B;
-            a = A;
-        }
-
-        void setBGRA(uint8 B, uint8 G, uint8 R, uint8 A = 0xFF)
-        {
-            r = R;
-            g = G;
-            b = B;
-            a = A;
-        }
-
-        operator uint32 () const {
-            return u;
-        }
-
-        union {
-            struct {
-#if NV_LITTLE_ENDIAN
-                uint8 b, g, r, a;
-#else
-                uint8 a: 8;
-                uint8 r: 8;
-                uint8 g: 8;
-                uint8 b: 8;
-#endif
-            };
-            uint8 component[4];
-            uint32 u;
-        };
-    };
-
-
-    /// 16 bit 565 BGR color.
-    class NVMATH_CLASS Color16
-    {
-    public:
-        Color16() { }
-        Color16(const Color16 & c) : u(c.u) { }
-        explicit Color16(uint16 U) : u(U) { }
-
-        union {
-            struct {
-#if NV_LITTLE_ENDIAN
-                uint16 b : 5;
-                uint16 g : 6;
-                uint16 r : 5;
-#else
-                uint16 r : 5;
-                uint16 g : 6;
-                uint16 b : 5;
-#endif
-            };
-            uint16 u;
-        };
-    };
-
-    /// 16 bit 4444 BGRA color.
-    class NVMATH_CLASS Color16_4444
-    {
-    public:
-        Color16_4444() { }
-        Color16_4444(const Color16_4444 & c) : u(c.u) { }
-        explicit Color16_4444(uint16 U) : u(U) { }
-
-        union {
-            struct {
-#if NV_LITTLE_ENDIAN
-                uint16 b : 4;
-                uint16 g : 4;
-                uint16 r : 4;
-                uint16 a : 4;
-#else
-                uint16 a : 4;
-                uint16 r : 4;
-                uint16 g : 4;
-                uint16 b : 4;
-#endif
-            };
-            uint16 u;
-        };
-    };
-
-} // nv namespace
-
-#endif // NV_MATH_COLOR_H
diff --git a/thirdparty/thekla_atlas/nvmath/ConvexHull.cpp b/thirdparty/thekla_atlas/nvmath/ConvexHull.cpp
deleted file mode 100644
index a4a95dace4..0000000000
--- a/thirdparty/thekla_atlas/nvmath/ConvexHull.cpp
+++ /dev/null
@@ -1,120 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "ConvexHull.h"
-
-#include "Vector.inl"
-
-#include "nvcore/RadixSort.h"
-#include "nvcore/Array.inl"
-
-using namespace nv;
-
-inline static float triangleArea(Vector2::Arg v1, Vector2::Arg v2, Vector2::Arg v3)
-{
-    return 0.5f * (v3.x * v1.y + v1.x * v2.y + v2.x * v3.y - v2.x * v1.y - v3.x * v2.y - v1.x * v3.y);
-}
-
-
-// Compute the convex hull using Graham Scan.
-void nv::convexHull(const Array<Vector2> & input, Array<Vector2> & output, float epsilon/*=0*/)
-{
-    const uint inputCount = input.count();
-
-    Array<float> coords;
-    coords.resize(inputCount);
-
-    for (uint i = 0; i < inputCount; i++) {
-        coords[i] = input[i].x;
-    }
-
-    RadixSort radix;
-    radix.sort(coords);
-
-    const uint * ranks = radix.ranks();
-
-    Array<Vector2> top(inputCount);
-    Array<Vector2> bottom(inputCount);
-
-    Vector2 P = input[ranks[0]];
-    Vector2 Q = input[ranks[inputCount-1]];
-
-    float topy = max(P.y, Q.y);
-    float boty = min(P.y, Q.y);
-
-    for (uint i = 0; i < inputCount; i++) {
-        Vector2 p = input[ranks[i]];
-        if (p.y >= boty) top.append(p);
-    }
-
-    for (uint i = 0; i < inputCount; i++) {
-        Vector2 p = input[ranks[inputCount-1-i]];
-        if (p.y <= topy) bottom.append(p);
-    }
-
-    // Filter top list.
-    output.clear();
-    output.append(top[0]);
-    output.append(top[1]);
-
-    for (uint i = 2; i < top.count(); ) {
-        Vector2 a = output[output.count()-2];
-        Vector2 b = output[output.count()-1];
-        Vector2 c = top[i];
-
-        float area = triangleArea(a, b, c);
-
-        if (area >= -epsilon) {
-            output.popBack();
-        }
-
-        if (area < -epsilon || output.count() == 1) {
-            output.append(c);
-            i++;
-        }
-    }
-    
-    uint top_count = output.count();
-    output.append(bottom[1]);
-
-    // Filter bottom list.
-    for (uint i = 2; i < bottom.count(); ) {
-        Vector2 a = output[output.count()-2];
-        Vector2 b = output[output.count()-1];
-        Vector2 c = bottom[i];
-
-        float area = triangleArea(a, b, c);
-
-        if (area >= -epsilon) {
-            output.popBack();
-        }
-
-        if (area < -epsilon || output.count() == top_count) {
-            output.append(c);
-            i++;
-        }
-    }
-
-    // Remove duplicate element.
-    nvDebugCheck(output.front() == output.back());
-    output.popBack();
-}
-
-/*
-void testConvexHull() {
-
-    Array<Vector2> points;
-    points.append(Vector2(1.00, 1.00));
-    points.append(Vector2(0.00, 0.00));
-    points.append(Vector2(1.00, 1.00));
-    points.append(Vector2(1.00, -1.00));
-    points.append(Vector2(2.00, 5.00));
-    points.append(Vector2(-5.00, 3.00));
-    points.append(Vector2(-4.00, -3.00));
-    points.append(Vector2(7.00, -4.00));
-
-    Array<Vector2> hull;
-    convexHull(points, hull);
-
-}
-*/
-
diff --git a/thirdparty/thekla_atlas/nvmath/ConvexHull.h b/thirdparty/thekla_atlas/nvmath/ConvexHull.h
deleted file mode 100644
index 6c2db5d73f..0000000000
--- a/thirdparty/thekla_atlas/nvmath/ConvexHull.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_CONVEXHULL_H
-#define NV_MATH_CONVEXHULL_H
-
-#include "nvmath.h"
-#include "nvcore/Array.h"
-
-namespace nv {
-    class Vector2;
- 
-    void convexHull(const Array<Vector2> & input, Array<Vector2> & output, float epsilon = 0);
-
-} // namespace nv
-
-#endif // NV_MATH_CONVEXHULL_H
diff --git a/thirdparty/thekla_atlas/nvmath/Fitting.cpp b/thirdparty/thekla_atlas/nvmath/Fitting.cpp
deleted file mode 100644
index 6cd5cb0f32..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Fitting.cpp
+++ /dev/null
@@ -1,1205 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "Fitting.h"
-#include "Vector.inl"
-#include "Plane.inl"
-
-#include "nvcore/Array.inl"
-#include "nvcore/Utils.h" // max, swap
-
-#include <float.h> // FLT_MAX
-//#include <vector>
-#include <string.h>
-
-using namespace nv;
-
-// @@ Move to EigenSolver.h
-
-// @@ We should be able to do something cheaper...
-static Vector3 estimatePrincipalComponent(const float * __restrict matrix)
-{
-	const Vector3 row0(matrix[0], matrix[1], matrix[2]);
-	const Vector3 row1(matrix[1], matrix[3], matrix[4]);
-	const Vector3 row2(matrix[2], matrix[4], matrix[5]);
-
-	float r0 = lengthSquared(row0);
-	float r1 = lengthSquared(row1);
-	float r2 = lengthSquared(row2);
-
-	if (r0 > r1 && r0 > r2) return row0;
-	if (r1 > r2) return row1;
-	return row2;
-}
-
-
-static inline Vector3 firstEigenVector_PowerMethod(const float *__restrict matrix)
-{
-    if (matrix[0] == 0 && matrix[3] == 0 && matrix[5] == 0)
-    {
-        return Vector3(0.0f);
-    }
-
-    Vector3 v = estimatePrincipalComponent(matrix);
-
-    const int NUM = 8;
-    for (int i = 0; i < NUM; i++)
-    {
-        float x = v.x * matrix[0] + v.y * matrix[1] + v.z * matrix[2];
-        float y = v.x * matrix[1] + v.y * matrix[3] + v.z * matrix[4];
-        float z = v.x * matrix[2] + v.y * matrix[4] + v.z * matrix[5];
-
-        float norm = max(max(x, y), z);
-
-        v = Vector3(x, y, z) / norm;
-    }
-
-    return v;
-}
-
-
-Vector3 nv::Fit::computeCentroid(int n, const Vector3 *__restrict points)
-{
-    Vector3 centroid(0.0f);
-
-    for (int i = 0; i < n; i++)
-    {
-        centroid += points[i];
-    }
-    centroid /= float(n);
-
-    return centroid;
-}
-
-Vector3 nv::Fit::computeCentroid(int n, const Vector3 *__restrict points, const float *__restrict weights, Vector3::Arg metric)
-{
-    Vector3 centroid(0.0f);
-    float total = 0.0f;
-
-    for (int i = 0; i < n; i++)
-    {
-        total += weights[i];
-        centroid += weights[i]*points[i];
-    }
-    centroid /= total;
-
-    return centroid;
-}
-
-Vector4 nv::Fit::computeCentroid(int n, const Vector4 *__restrict points)
-{
-    Vector4 centroid(0.0f);
-
-    for (int i = 0; i < n; i++)
-    {
-        centroid += points[i];
-    }
-    centroid /= float(n);
-
-    return centroid;
-}
-
-Vector4 nv::Fit::computeCentroid(int n, const Vector4 *__restrict points, const float *__restrict weights, Vector4::Arg metric)
-{
-    Vector4 centroid(0.0f);
-    float total = 0.0f;
-
-    for (int i = 0; i < n; i++)
-    {
-        total += weights[i];
-        centroid += weights[i]*points[i];
-    }
-    centroid /= total;
-
-    return centroid;
-}
-
-
-
-Vector3 nv::Fit::computeCovariance(int n, const Vector3 *__restrict points, float *__restrict covariance)
-{
-    // compute the centroid
-    Vector3 centroid = computeCentroid(n, points);
-
-    // compute covariance matrix
-    for (int i = 0; i < 6; i++)
-    {
-        covariance[i] = 0.0f;
-    }
-
-    for (int i = 0; i < n; i++)
-    {
-        Vector3 v = points[i] - centroid;
-
-        covariance[0] += v.x * v.x;
-        covariance[1] += v.x * v.y;
-        covariance[2] += v.x * v.z;
-        covariance[3] += v.y * v.y;
-        covariance[4] += v.y * v.z;
-        covariance[5] += v.z * v.z;
-    }
-
-    return centroid;
-}
-
-Vector3 nv::Fit::computeCovariance(int n, const Vector3 *__restrict points, const float *__restrict weights, Vector3::Arg metric, float *__restrict covariance)
-{
-    // compute the centroid
-    Vector3 centroid = computeCentroid(n, points, weights, metric);
-
-    // compute covariance matrix
-    for (int i = 0; i < 6; i++)
-    {
-        covariance[i] = 0.0f;
-    }
-
-    for (int i = 0; i < n; i++)
-    {
-        Vector3 a = (points[i] - centroid) * metric;
-        Vector3 b = weights[i]*a;
-
-        covariance[0] += a.x * b.x;
-        covariance[1] += a.x * b.y;
-        covariance[2] += a.x * b.z;
-        covariance[3] += a.y * b.y;
-        covariance[4] += a.y * b.z;
-        covariance[5] += a.z * b.z;
-    }
-
-    return centroid;
-}
-
-Vector4 nv::Fit::computeCovariance(int n, const Vector4 *__restrict points, float *__restrict covariance)
-{
-    // compute the centroid
-    Vector4 centroid = computeCentroid(n, points);
-
-    // compute covariance matrix
-    for (int i = 0; i < 10; i++)
-    {
-        covariance[i] = 0.0f;
-    }
-
-    for (int i = 0; i < n; i++)
-    {
-        Vector4 v = points[i] - centroid;
-
-        covariance[0] += v.x * v.x;
-        covariance[1] += v.x * v.y;
-        covariance[2] += v.x * v.z;
-        covariance[3] += v.x * v.w;
-
-		covariance[4] += v.y * v.y;
-        covariance[5] += v.y * v.z;
-        covariance[6] += v.y * v.w;
-
-		covariance[7] += v.z * v.z;
-		covariance[8] += v.z * v.w;
-
-		covariance[9] += v.w * v.w;
-	}
-
-    return centroid;
-}
-
-Vector4 nv::Fit::computeCovariance(int n, const Vector4 *__restrict points, const float *__restrict weights, Vector4::Arg metric, float *__restrict covariance)
-{
-    // compute the centroid
-    Vector4 centroid = computeCentroid(n, points, weights, metric);
-
-    // compute covariance matrix
-    for (int i = 0; i < 10; i++)
-    {
-        covariance[i] = 0.0f;
-    }
-
-    for (int i = 0; i < n; i++)
-    {
-        Vector4 a = (points[i] - centroid) * metric;
-        Vector4 b = weights[i]*a;
-
-        covariance[0] += a.x * b.x;
-        covariance[1] += a.x * b.y;
-        covariance[2] += a.x * b.z;
-        covariance[3] += a.x * b.w;
-
-		covariance[4] += a.y * b.y;
-        covariance[5] += a.y * b.z;
-        covariance[6] += a.y * b.w;
-
-		covariance[7] += a.z * b.z;
-		covariance[8] += a.z * b.w;
-
-		covariance[9] += a.w * b.w;
-    }
-
-    return centroid;
-}
-
-
-
-Vector3 nv::Fit::computePrincipalComponent_PowerMethod(int n, const Vector3 *__restrict points)
-{
-    float matrix[6];
-    computeCovariance(n, points, matrix);
-
-    return firstEigenVector_PowerMethod(matrix);
-}
-
-Vector3 nv::Fit::computePrincipalComponent_PowerMethod(int n, const Vector3 *__restrict points, const float *__restrict weights, Vector3::Arg metric)
-{
-    float matrix[6];
-    computeCovariance(n, points, weights, metric, matrix);
-
-    return firstEigenVector_PowerMethod(matrix);
-}
-
-
-
-static inline Vector3 firstEigenVector_EigenSolver3(const float *__restrict matrix)
-{
-    if (matrix[0] == 0 && matrix[3] == 0 && matrix[5] == 0)
-    {
-        return Vector3(0.0f);
-    }
-
-    float eigenValues[3];
-    Vector3 eigenVectors[3];
-	if (!nv::Fit::eigenSolveSymmetric3(matrix, eigenValues, eigenVectors))
-	{
-		return Vector3(0.0f);
-	}
-
-	return eigenVectors[0];
-}
-
-Vector3 nv::Fit::computePrincipalComponent_EigenSolver(int n, const Vector3 *__restrict points)
-{
-    float matrix[6];
-    computeCovariance(n, points, matrix);
-
-    return firstEigenVector_EigenSolver3(matrix);
-}
-
-Vector3 nv::Fit::computePrincipalComponent_EigenSolver(int n, const Vector3 *__restrict points, const float *__restrict weights, Vector3::Arg metric)
-{
-    float matrix[6];
-    computeCovariance(n, points, weights, metric, matrix);
-
-    return firstEigenVector_EigenSolver3(matrix);
-}
-
-
-
-static inline Vector4 firstEigenVector_EigenSolver4(const float *__restrict matrix)
-{
-    if (matrix[0] == 0 && matrix[4] == 0 && matrix[7] == 0&& matrix[9] == 0)
-    {
-        return Vector4(0.0f);
-    }
-
-    float eigenValues[4];
-    Vector4 eigenVectors[4];
-	if (!nv::Fit::eigenSolveSymmetric4(matrix, eigenValues, eigenVectors))
-	{
-		return Vector4(0.0f);
-	}
-
-	return eigenVectors[0];
-}
-
-Vector4 nv::Fit::computePrincipalComponent_EigenSolver(int n, const Vector4 *__restrict points)
-{
-    float matrix[10];
-    computeCovariance(n, points, matrix);
-
-    return firstEigenVector_EigenSolver4(matrix);
-}
-
-Vector4 nv::Fit::computePrincipalComponent_EigenSolver(int n, const Vector4 *__restrict points, const float *__restrict weights, Vector4::Arg metric)
-{
-    float matrix[10];
-    computeCovariance(n, points, weights, metric, matrix);
-
-    return firstEigenVector_EigenSolver4(matrix);
-}
-
-
-
-void ArvoSVD(int rows, int cols, float * Q, float * diag, float * R);
-
-Vector3 nv::Fit::computePrincipalComponent_SVD(int n, const Vector3 *__restrict points)
-{
-	// Store the points in an n x n matrix
-    Array<float> Q; Q.resize(n*n, 0.0f);
-	for (int i = 0; i < n; ++i)
-	{
-		Q[i*n+0] = points[i].x;
-		Q[i*n+1] = points[i].y;
-		Q[i*n+2] = points[i].z;
-	}
-
-	// Alloc space for the SVD outputs
-    Array<float> diag; diag.resize(n, 0.0f);
-    Array<float> R; R.resize(n*n, 0.0f);
-
-	ArvoSVD(n, n, &Q[0], &diag[0], &R[0]);
-
-	// Get the principal component
-	return Vector3(R[0], R[1], R[2]);
-}
-
-Vector4 nv::Fit::computePrincipalComponent_SVD(int n, const Vector4 *__restrict points)
-{
-	// Store the points in an n x n matrix
-    Array<float> Q; Q.resize(n*n, 0.0f);
-	for (int i = 0; i < n; ++i)
-	{
-		Q[i*n+0] = points[i].x;
-		Q[i*n+1] = points[i].y;
-		Q[i*n+2] = points[i].z;
-		Q[i*n+3] = points[i].w;
-	}
-
-	// Alloc space for the SVD outputs
-    Array<float> diag; diag.resize(n, 0.0f);
-    Array<float> R; R.resize(n*n, 0.0f);
-
-	ArvoSVD(n, n, &Q[0], &diag[0], &R[0]);
-
-	// Get the principal component
-	return Vector4(R[0], R[1], R[2], R[3]);
-}
-
-
-
-Plane nv::Fit::bestPlane(int n, const Vector3 *__restrict points)
-{
-    // compute the centroid and covariance
-    float matrix[6];
-    Vector3 centroid = computeCovariance(n, points, matrix);
-
-    if (matrix[0] == 0 && matrix[3] == 0 && matrix[5] == 0)
-    {
-        // If no plane defined, then return a horizontal plane.
-        return Plane(Vector3(0, 0, 1), centroid);
-    }
-
-    float eigenValues[3];
-    Vector3 eigenVectors[3];
-    if (!eigenSolveSymmetric3(matrix, eigenValues, eigenVectors)) {
-        // If no plane defined, then return a horizontal plane.
-        return Plane(Vector3(0, 0, 1), centroid);
-    }
-
-    return Plane(eigenVectors[2], centroid);
-}
-
-bool nv::Fit::isPlanar(int n, const Vector3 * points, float epsilon/*=NV_EPSILON*/)
-{
-    // compute the centroid and covariance
-    float matrix[6];
-    computeCovariance(n, points, matrix);
-
-    float eigenValues[3];
-    Vector3 eigenVectors[3];
-    if (!eigenSolveSymmetric3(matrix, eigenValues, eigenVectors)) {
-        return false;
-    }
-
-    return eigenValues[2] < epsilon;
-}
-
-
-
-// Tridiagonal solver from Charles Bloom. 
-// Householder transforms followed by QL decomposition. 
-// Seems to be based on the code from Numerical Recipes in C.
-
-static void EigenSolver3_Tridiagonal(float mat[3][3], float * diag, float * subd);
-static bool EigenSolver3_QLAlgorithm(float mat[3][3], float * diag, float * subd);
-
-bool nv::Fit::eigenSolveSymmetric3(const float matrix[6], float eigenValues[3], Vector3 eigenVectors[3])
-{
-    nvDebugCheck(matrix != NULL && eigenValues != NULL && eigenVectors != NULL);
-
-    float subd[3];
-    float diag[3];
-    float work[3][3];
-
-    work[0][0] = matrix[0];
-    work[0][1] = work[1][0] = matrix[1];
-    work[0][2] = work[2][0] = matrix[2];
-    work[1][1] = matrix[3];
-    work[1][2] = work[2][1] = matrix[4];
-    work[2][2] = matrix[5];
-
-    EigenSolver3_Tridiagonal(work, diag, subd);
-    if (!EigenSolver3_QLAlgorithm(work, diag, subd))
-    {
-        for (int i = 0; i < 3; i++) {
-            eigenValues[i] = 0;
-            eigenVectors[i] = Vector3(0);
-        }
-        return false;
-    }
-
-    for (int i = 0; i < 3; i++) {
-        eigenValues[i] = (float)diag[i];
-    }
-
-    // eigenvectors are the columns; make them the rows :
-
-    for (int i=0; i < 3; i++)
-    {
-        for (int j = 0; j < 3; j++)
-        {
-            eigenVectors[j].component[i] = (float) work[i][j];
-        }
-    }
-
-    // shuffle to sort by singular value :
-    if (eigenValues[2] > eigenValues[0] && eigenValues[2] > eigenValues[1])
-    {
-        swap(eigenValues[0], eigenValues[2]);
-        swap(eigenVectors[0], eigenVectors[2]);
-    }
-    if (eigenValues[1] > eigenValues[0])
-    {
-        swap(eigenValues[0], eigenValues[1]);
-        swap(eigenVectors[0], eigenVectors[1]);
-    }
-    if (eigenValues[2] > eigenValues[1])
-    {
-        swap(eigenValues[1], eigenValues[2]);
-        swap(eigenVectors[1], eigenVectors[2]);
-    }
-
-    nvDebugCheck(eigenValues[0] >= eigenValues[1] && eigenValues[0] >= eigenValues[2]);
-    nvDebugCheck(eigenValues[1] >= eigenValues[2]);
-
-    return true;
-}
-
-static void EigenSolver3_Tridiagonal(float mat[3][3], float * diag, float * subd)
-{
-    // Householder reduction T = Q^t M Q
-    //   Input:   
-    //     mat, symmetric 3x3 matrix M
-    //   Output:  
-    //     mat, orthogonal matrix Q
-    //     diag, diagonal entries of T
-    //     subd, subdiagonal entries of T (T is symmetric)
-    const float epsilon = 1e-08f;
-
-    float a = mat[0][0];
-    float b = mat[0][1];
-    float c = mat[0][2];
-    float d = mat[1][1];
-    float e = mat[1][2];
-    float f = mat[2][2];
-
-    diag[0] = a;
-    subd[2] = 0.f;
-    if (fabsf(c) >= epsilon)
-    {
-        const float ell = sqrtf(b*b+c*c);
-        b /= ell;
-        c /= ell;
-        const float q = 2*b*e+c*(f-d);
-        diag[1] = d+c*q;
-        diag[2] = f-c*q;
-        subd[0] = ell;
-        subd[1] = e-b*q;
-        mat[0][0] = 1; mat[0][1] = 0; mat[0][2] = 0;
-        mat[1][0] = 0; mat[1][1] = b; mat[1][2] = c;
-        mat[2][0] = 0; mat[2][1] = c; mat[2][2] = -b;
-    }
-    else
-    {
-        diag[1] = d;
-        diag[2] = f;
-        subd[0] = b;
-        subd[1] = e;
-        mat[0][0] = 1; mat[0][1] = 0; mat[0][2] = 0;
-        mat[1][0] = 0; mat[1][1] = 1; mat[1][2] = 0;
-        mat[2][0] = 0; mat[2][1] = 0; mat[2][2] = 1;
-    }
-}
-
-static bool EigenSolver3_QLAlgorithm(float mat[3][3], float * diag, float * subd)
-{
-    // QL iteration with implicit shifting to reduce matrix from tridiagonal
-    // to diagonal
-    const int maxiter = 32;
-
-    for (int ell = 0; ell < 3; ell++)
-    {
-        int iter;
-        for (iter = 0; iter < maxiter; iter++)
-        {
-            int m;
-            for (m = ell; m <= 1; m++)
-            {
-                float dd = fabsf(diag[m]) + fabsf(diag[m+1]);
-                if ( fabsf(subd[m]) + dd == dd )
-                    break;
-            }
-            if ( m == ell )
-                break;
-
-            float g = (diag[ell+1]-diag[ell])/(2*subd[ell]);
-            float r = sqrtf(g*g+1);
-            if ( g < 0 )
-                g = diag[m]-diag[ell]+subd[ell]/(g-r);
-            else
-                g = diag[m]-diag[ell]+subd[ell]/(g+r);
-            float s = 1, c = 1, p = 0;
-            for (int i = m-1; i >= ell; i--)
-            {
-                float f = s*subd[i], b = c*subd[i];
-                if ( fabsf(f) >= fabsf(g) )
-                {
-                    c = g/f;
-                    r = sqrtf(c*c+1);
-                    subd[i+1] = f*r;
-                    c *= (s = 1/r);
-                }
-                else
-                {
-                    s = f/g;
-                    r = sqrtf(s*s+1);
-                    subd[i+1] = g*r;
-                    s *= (c = 1/r);
-                }
-                g = diag[i+1]-p;
-                r = (diag[i]-g)*s+2*b*c;
-                p = s*r;
-                diag[i+1] = g+p;
-                g = c*r-b;
-
-                for (int k = 0; k < 3; k++)
-                {
-                    f = mat[k][i+1];
-                    mat[k][i+1] = s*mat[k][i]+c*f;
-                    mat[k][i] = c*mat[k][i]-s*f;
-                }
-            }
-            diag[ell] -= p;
-            subd[ell] = g;
-            subd[m] = 0;
-        }
-
-        if ( iter == maxiter )
-            // should not get here under normal circumstances
-            return false;
-    }
-
-    return true;
-}
-
-
-
-// Tridiagonal solver for 4x4 symmetric matrices.
-
-static void EigenSolver4_Tridiagonal(float mat[4][4], float * diag, float * subd);
-static bool EigenSolver4_QLAlgorithm(float mat[4][4], float * diag, float * subd);
-
-bool nv::Fit::eigenSolveSymmetric4(const float matrix[10], float eigenValues[4], Vector4 eigenVectors[4])
-{
-    nvDebugCheck(matrix != NULL && eigenValues != NULL && eigenVectors != NULL);
-
-    float subd[4];
-    float diag[4];
-    float work[4][4];
-
-    work[0][0] = matrix[0];
-    work[0][1] = work[1][0] = matrix[1];
-    work[0][2] = work[2][0] = matrix[2];
-    work[0][3] = work[3][0] = matrix[3];
-    work[1][1] = matrix[4];
-    work[1][2] = work[2][1] = matrix[5];
-    work[1][3] = work[3][1] = matrix[6];
-    work[2][2] = matrix[7];
-    work[2][3] = work[3][2] = matrix[8];
-    work[3][3] = matrix[9];
-
-    EigenSolver4_Tridiagonal(work, diag, subd);
-    if (!EigenSolver4_QLAlgorithm(work, diag, subd))
-    {
-        for (int i = 0; i < 4; i++) {
-            eigenValues[i] = 0;
-            eigenVectors[i] = Vector4(0);
-        }
-        return false;
-    }
-
-    for (int i = 0; i < 4; i++) {
-        eigenValues[i] = (float)diag[i];
-    }
-
-    // eigenvectors are the columns; make them the rows
-
-    for (int i = 0; i < 4; i++)
-    {
-        for (int j = 0; j < 4; j++)
-        {
-            eigenVectors[j].component[i] = (float) work[i][j];
-        }
-    }
-
-    // sort by singular value
-
-	for (int i = 0; i < 3; ++i)
-	{
-		for (int j = i+1; j < 4; ++j)
-		{
-			if (eigenValues[j] > eigenValues[i])
-			{
-				swap(eigenValues[i], eigenValues[j]);
-				swap(eigenVectors[i], eigenVectors[j]);
-			}
-		}
-	}
-
-    nvDebugCheck(eigenValues[0] >= eigenValues[1] && eigenValues[0] >= eigenValues[2] && eigenValues[0] >= eigenValues[3]);
-    nvDebugCheck(eigenValues[1] >= eigenValues[2] && eigenValues[1] >= eigenValues[3]);
-    nvDebugCheck(eigenValues[2] >= eigenValues[2]);
-
-    return true;
-}
-
-#include "nvmath/Matrix.inl"
-
-inline float signNonzero(float x)
-{
-	return (x >= 0.0f) ? 1.0f : -1.0f;
-}
-
-static void EigenSolver4_Tridiagonal(float mat[4][4], float * diag, float * subd)
-{
-    // Householder reduction T = Q^t M Q
-    //   Input:   
-    //     mat, symmetric 3x3 matrix M
-    //   Output:  
-    //     mat, orthogonal matrix Q
-    //     diag, diagonal entries of T
-    //     subd, subdiagonal entries of T (T is symmetric)
-
-	static const int n = 4;
-
-	// Set epsilon relative to size of elements in matrix
-	static const float relEpsilon = 1e-6f;
-	float maxElement = FLT_MAX;
-	for (int i = 0; i < n; ++i)
-		for (int j = 0; j < n; ++j)
-			maxElement = max(maxElement, fabsf(mat[i][j]));
-	float epsilon = relEpsilon * maxElement;
-
-	// Iterative algorithm, works for any size of matrix but might be slower than
-	// a closed-form solution for symmetric 4x4 matrices.  Based on this article:
-	// http://en.wikipedia.org/wiki/Householder_transformation#Tridiagonalization
-
-	Matrix A, Q(identity);
-	memcpy(&A, mat, sizeof(float)*n*n);
-
-	// We proceed from left to right, making the off-tridiagonal entries zero in
-	// one column of the matrix at a time.
-	for (int k = 0; k < n - 2; ++k)
-	{
-		float sum = 0.0f;
-		for (int j = k+1; j < n; ++j)
-			sum += A(j,k)*A(j,k);
-		float alpha = -signNonzero(A(k+1,k)) * sqrtf(sum);
-		float r = sqrtf(0.5f * (alpha*alpha - A(k+1,k)*alpha));
-
-		// If r is zero, skip this column - already in tridiagonal form
-		if (fabsf(r) < epsilon)
-			continue;
-
-		float v[n] = {};
-		v[k+1] = 0.5f * (A(k+1,k) - alpha) / r;
-		for (int j = k+2; j < n; ++j)
-			v[j] = 0.5f * A(j,k) / r;
-
-		Matrix P(identity);
-		for (int i = 0; i < n; ++i)
-			for (int j = 0; j < n; ++j)
-				P(i,j) -= 2.0f * v[i] * v[j];
-
-		A = mul(mul(P, A), P);
-		Q = mul(Q, P);
-	}
-
-	nvDebugCheck(fabsf(A(2,0)) < epsilon);
-	nvDebugCheck(fabsf(A(0,2)) < epsilon);
-	nvDebugCheck(fabsf(A(3,0)) < epsilon);
-	nvDebugCheck(fabsf(A(0,3)) < epsilon);
-	nvDebugCheck(fabsf(A(3,1)) < epsilon);
-	nvDebugCheck(fabsf(A(1,3)) < epsilon);
-
-	for (int i = 0; i < n; ++i)
-		diag[i] = A(i,i);
-	for (int i = 0; i < n - 1; ++i)
-		subd[i] = A(i+1,i);
-	subd[n-1] = 0.0f;
-
-	memcpy(mat, &Q, sizeof(float)*n*n);
-}
-
-static bool EigenSolver4_QLAlgorithm(float mat[4][4], float * diag, float * subd)
-{
-    // QL iteration with implicit shifting to reduce matrix from tridiagonal
-    // to diagonal
-    const int maxiter = 32;
-
-    for (int ell = 0; ell < 4; ell++)
-    {
-        int iter;
-        for (iter = 0; iter < maxiter; iter++)
-        {
-            int m;
-            for (m = ell; m < 3; m++)
-            {
-                float dd = fabsf(diag[m]) + fabsf(diag[m+1]);
-                if ( fabsf(subd[m]) + dd == dd )
-                    break;
-            }
-            if ( m == ell )
-                break;
-
-            float g = (diag[ell+1]-diag[ell])/(2*subd[ell]);
-            float r = sqrtf(g*g+1);
-            if ( g < 0 )
-                g = diag[m]-diag[ell]+subd[ell]/(g-r);
-            else
-                g = diag[m]-diag[ell]+subd[ell]/(g+r);
-            float s = 1, c = 1, p = 0;
-            for (int i = m-1; i >= ell; i--)
-            {
-                float f = s*subd[i], b = c*subd[i];
-                if ( fabsf(f) >= fabsf(g) )
-                {
-                    c = g/f;
-                    r = sqrtf(c*c+1);
-                    subd[i+1] = f*r;
-                    c *= (s = 1/r);
-                }
-                else
-                {
-                    s = f/g;
-                    r = sqrtf(s*s+1);
-                    subd[i+1] = g*r;
-                    s *= (c = 1/r);
-                }
-                g = diag[i+1]-p;
-                r = (diag[i]-g)*s+2*b*c;
-                p = s*r;
-                diag[i+1] = g+p;
-                g = c*r-b;
-
-                for (int k = 0; k < 4; k++)
-                {
-                    f = mat[k][i+1];
-                    mat[k][i+1] = s*mat[k][i]+c*f;
-                    mat[k][i] = c*mat[k][i]-s*f;
-                }
-            }
-            diag[ell] -= p;
-            subd[ell] = g;
-            subd[m] = 0;
-        }
-
-        if ( iter == maxiter )
-            // should not get here under normal circumstances
-            return false;
-    }
-
-    return true;
-}
-
-
-
-int nv::Fit::compute4Means(int n, const Vector3 *__restrict points, const float *__restrict weights, Vector3::Arg metric, Vector3 *__restrict cluster)
-{
-    // Compute principal component.
-    float matrix[6];
-    Vector3 centroid = computeCovariance(n, points, weights, metric, matrix);
-    Vector3 principal = firstEigenVector_PowerMethod(matrix);
-
-    // Pick initial solution.
-    int mini, maxi;
-    mini = maxi = 0;
-
-    float mindps, maxdps;
-    mindps = maxdps = dot(points[0] - centroid, principal);
-
-    for (int i = 1; i < n; ++i)
-    {
-        float dps = dot(points[i] - centroid, principal);
-
-        if (dps < mindps) {
-            mindps = dps;
-            mini = i;
-        }
-        else {
-            maxdps = dps;
-            maxi = i;
-        }
-    }
-
-    cluster[0] = centroid + mindps * principal;
-    cluster[1] = centroid + maxdps * principal;
-    cluster[2] = (2.0f * cluster[0] + cluster[1]) / 3.0f;
-    cluster[3] = (2.0f * cluster[1] + cluster[0]) / 3.0f;
-
-    // Now we have to iteratively refine the clusters.
-    while (true)
-    {
-        Vector3 newCluster[4] = { Vector3(0.0f), Vector3(0.0f), Vector3(0.0f), Vector3(0.0f) };
-        float total[4] = {0, 0, 0, 0};
-
-        for (int i = 0; i < n; ++i)
-        {
-            // Find nearest cluster.
-            int nearest = 0;
-            float mindist = FLT_MAX;
-            for (int j = 0; j < 4; j++)
-            {
-                float dist = lengthSquared((cluster[j] - points[i]) * metric);
-                if (dist < mindist)
-                {
-                    mindist = dist;
-                    nearest = j;
-                }
-            }
-
-            newCluster[nearest] += weights[i] * points[i];
-            total[nearest] += weights[i];
-        }
-
-        for (int j = 0; j < 4; j++)
-        {
-            if (total[j] != 0)
-                newCluster[j] /= total[j];
-        }
-
-        if (equal(cluster[0], newCluster[0]) && equal(cluster[1], newCluster[1]) && 
-            equal(cluster[2], newCluster[2]) && equal(cluster[3], newCluster[3]))
-        {
-            return (total[0] != 0) + (total[1] != 0) + (total[2] != 0) + (total[3] != 0);
-        }
-
-        cluster[0] = newCluster[0];
-        cluster[1] = newCluster[1];
-        cluster[2] = newCluster[2];
-        cluster[3] = newCluster[3];
-
-        // Sort clusters by weight.
-        for (int i = 0; i < 4; i++)
-        {
-            for (int j = i; j > 0 && total[j] > total[j - 1]; j--)
-            {
-                swap( total[j], total[j - 1] );
-                swap( cluster[j], cluster[j - 1] );
-            }
-        }
-    }
-}
-
-
-
-// Adaptation of James Arvo's SVD code, as found in ZOH.
-
-inline float Sqr(float x) { return x*x; }
-
-inline float svd_pythag( float a, float b )
-{
-	float at = fabsf(a);
-	float bt = fabsf(b);
-	if( at > bt )
-		return at * sqrtf( 1.0f + Sqr( bt / at ) );
-	else if( bt > 0.0f )
-		return bt * sqrtf( 1.0f + Sqr( at / bt ) );
-	else return 0.0f;
-}
-
-inline float SameSign( float a, float b ) 
-{
-	float t;
-	if( b >= 0.0f ) t = fabsf( a );
-	else t = -fabsf( a );
-	return t;
-}
-
-void ArvoSVD(int rows, int cols, float * Q, float * diag, float * R)
-{
-	static const int MaxIterations = 30;
-
-	int    i, j, k, l, p, q, iter;
-	float  c, f, h, s, x, y, z;
-	float  norm  = 0.0f;
-	float  g     = 0.0f;
-	float  scale = 0.0f;
-
-    Array<float> temp; temp.resize(cols, 0.0f);
-
-	for( i = 0; i < cols; i++ ) 
-	{
-		temp[i] = scale * g;
-		scale   = 0.0f;
-		g       = 0.0f;
-		s       = 0.0f;
-		l       = i + 1;
-
-		if( i < rows )
-		{
-			for( k = i; k < rows; k++ ) scale += fabsf( Q[k*cols+i] );
-			if( scale != 0.0f ) 
-			{
-				for( k = i; k < rows; k++ ) 
-				{
-					Q[k*cols+i] /= scale;
-					s += Sqr( Q[k*cols+i] );
-				}
-				f = Q[i*cols+i];
-				g = -SameSign( sqrtf(s), f );
-				h = f * g - s;
-				Q[i*cols+i] = f - g;
-				if( i != cols - 1 )
-				{
-					for( j = l; j < cols; j++ ) 
-					{
-						s = 0.0f;
-						for( k = i; k < rows; k++ ) s += Q[k*cols+i] * Q[k*cols+j];
-						f = s / h;
-						for( k = i; k < rows; k++ ) Q[k*cols+j] += f * Q[k*cols+i];
-					}
-				}
-				for( k = i; k < rows; k++ ) Q[k*cols+i] *= scale;
-			}
-		}
-
-		diag[i] = scale * g;
-		g       = 0.0f;
-		s       = 0.0f;
-		scale   = 0.0f;
-
-		if( i < rows && i != cols - 1 ) 
-		{
-			for( k = l; k < cols; k++ ) scale += fabsf( Q[i*cols+k] );
-			if( scale != 0.0f ) 
-			{
-				for( k = l; k < cols; k++ ) 
-				{
-					Q[i*cols+k] /= scale;
-					s += Sqr( Q[i*cols+k] );
-				}
-				f = Q[i*cols+l];
-				g = -SameSign( sqrtf(s), f );
-				h = f * g - s;
-				Q[i*cols+l] = f - g;
-				for( k = l; k < cols; k++ ) temp[k] = Q[i*cols+k] / h;
-				if( i != rows - 1 ) 
-				{
-					for( j = l; j < rows; j++ ) 
-					{
-						s = 0.0f;
-						for( k = l; k < cols; k++ ) s += Q[j*cols+k] * Q[i*cols+k];
-						for( k = l; k < cols; k++ ) Q[j*cols+k] += s * temp[k];
-					}
-				}
-				for( k = l; k < cols; k++ ) Q[i*cols+k] *= scale;
-			}
-		}
-		norm = max( norm, fabsf( diag[i] ) + fabsf( temp[i] ) );
-	}
-
-
-	for( i = cols - 1; i >= 0; i-- ) 
-	{
-		if( i < cols - 1 ) 
-		{
-			if( g != 0.0f ) 
-			{
-				for( j = l; j < cols; j++ ) R[i*cols+j] = ( Q[i*cols+j] / Q[i*cols+l] ) / g;
-				for( j = l; j < cols; j++ ) 
-				{
-					s = 0.0f;
-					for( k = l; k < cols; k++ ) s += Q[i*cols+k] * R[j*cols+k];
-					for( k = l; k < cols; k++ ) R[j*cols+k] += s * R[i*cols+k];
-				}
-			}
-			for( j = l; j < cols; j++ ) 
-			{
-				R[i*cols+j] = 0.0f;
-				R[j*cols+i] = 0.0f;
-			}
-		}
-		R[i*cols+i] = 1.0f;
-		g = temp[i];
-		l = i;
-	}
-
-
-	for( i = cols - 1; i >= 0; i-- ) 
-	{
-		l = i + 1;
-		g = diag[i];
-		if( i < cols - 1 ) for( j = l; j < cols; j++ ) Q[i*cols+j] = 0.0f;
-		if( g != 0.0f ) 
-		{
-			g = 1.0f / g;
-			if( i != cols - 1 ) 
-			{
-				for( j = l; j < cols; j++ ) 
-				{
-					s = 0.0f;
-					for( k = l; k < rows; k++ ) s += Q[k*cols+i] * Q[k*cols+j];
-					f = ( s / Q[i*cols+i] ) * g;
-					for( k = i; k < rows; k++ ) Q[k*cols+j] += f * Q[k*cols+i];
-				}
-			}
-			for( j = i; j < rows; j++ ) Q[j*cols+i] *= g;
-		} 
-		else 
-		{
-			for( j = i; j < rows; j++ ) Q[j*cols+i] = 0.0f;
-		}
-		Q[i*cols+i] += 1.0f;
-	}
-
-
-	for( k = cols - 1; k >= 0; k-- ) 
-	{
-		for( iter = 1; iter <= MaxIterations; iter++ ) 
-		{
-			int jump = 0;
-
-			for( l = k; l >= 0; l-- )
-			{
-				q = l - 1;
-				if( fabsf( temp[l] ) + norm == norm ) { jump = 1; break; }
-				if( fabsf( diag[q] ) + norm == norm ) { jump = 0; break; }
-			}
-
-			if( !jump )
-			{
-				c = 0.0f;
-				s = 1.0f;
-				for( i = l; i <= k; i++ )
-				{
-					f = s * temp[i];
-					temp[i] *= c;
-					if( fabsf( f ) + norm == norm ) break;
-					g = diag[i];
-					h = svd_pythag( f, g );
-					diag[i] = h;
-					h = 1.0f / h;
-					c = g * h;
-					s = -f * h;
-					for( j = 0; j < rows; j++ ) 
-					{
-						y = Q[j*cols+q];
-						z = Q[j*cols+i];
-						Q[j*cols+q] = y * c + z * s;
-						Q[j*cols+i] = z * c - y * s;
-					}
-				}
-			}
-
-			z = diag[k];
-			if( l == k ) 
-			{
-				if( z < 0.0f ) 
-				{
-					diag[k] = -z;
-					for( j = 0; j < cols; j++ ) R[k*cols+j] *= -1.0f; 
-				}
-				break;
-			}
-			if( iter >= MaxIterations ) return;
-			x = diag[l];
-			q = k - 1;
-			y = diag[q];
-			g = temp[q];
-			h = temp[k];
-			f = ( ( y - z ) * ( y + z ) + ( g - h ) * ( g + h ) ) / ( 2.0f * h * y );
-			g = svd_pythag( f, 1.0f );
-			f = ( ( x - z ) * ( x + z ) + h * ( ( y / ( f + SameSign( g, f ) ) ) - h ) ) / x;
-			c = 1.0f;
-			s = 1.0f;
-			for( j = l; j <= q; j++ ) 
-			{
-				i = j + 1;
-				g = temp[i];
-				y = diag[i];
-				h = s * g;
-				g = c * g;
-				z = svd_pythag( f, h );
-				temp[j] = z;
-				c = f / z;
-				s = h / z;
-				f = x * c + g * s;
-				g = g * c - x * s;
-				h = y * s;
-				y = y * c;
-				for( p = 0; p < cols; p++ ) 
-				{
-					x = R[j*cols+p];
-					z = R[i*cols+p];
-					R[j*cols+p] = x * c + z * s;
-					R[i*cols+p] = z * c - x * s;
-				}
-				z = svd_pythag( f, h );
-				diag[j] = z;
-				if( z != 0.0f ) 
-				{
-					z = 1.0f / z;
-					c = f * z;
-					s = h * z;
-				}
-				f = c * g + s * y;
-				x = c * y - s * g;
-				for( p = 0; p < rows; p++ ) 
-				{
-					y = Q[p*cols+j];
-					z = Q[p*cols+i];
-					Q[p*cols+j] = y * c + z * s;
-					Q[p*cols+i] = z * c - y * s;
-				}
-			}
-			temp[l] = 0.0f;
-			temp[k] = f;
-			diag[k] = x;
-		}
-	}
-
-	// Sort the singular values into descending order.
-
-	for( i = 0; i < cols - 1; i++ )
-	{
-		float biggest = diag[i];  // Biggest singular value so far.
-		int   bindex  = i;        // The row/col it occurred in.
-		for( j = i + 1; j < cols; j++ )
-		{
-			if( diag[j] > biggest ) 
-			{
-				biggest = diag[j];
-				bindex  = j;
-			}            
-		}
-		if( bindex != i )  // Need to swap rows and columns.
-		{
-			// Swap columns in Q.
-			for (int j = 0; j < rows; ++j)
-				swap(Q[j*cols+i], Q[j*cols+bindex]);
-
-			// Swap rows in R.
-			for (int j = 0; j < rows; ++j)
-				swap(R[i*cols+j], R[bindex*cols+j]);
-
-			// Swap elements in diag.
-			swap(diag[i], diag[bindex]);
-		}
-	}
-}
diff --git a/thirdparty/thekla_atlas/nvmath/Fitting.h b/thirdparty/thekla_atlas/nvmath/Fitting.h
deleted file mode 100644
index 7a88cd28fd..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Fitting.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_FITTING_H
-#define NV_MATH_FITTING_H
-
-#include "Vector.h"
-#include "Plane.h"
-
-namespace nv
-{
-    namespace Fit
-    {
-        Vector3 computeCentroid(int n, const Vector3 * points);
-        Vector3 computeCentroid(int n, const Vector3 * points, const float * weights, const Vector3 & metric);
-
-        Vector4 computeCentroid(int n, const Vector4 * points);
-        Vector4 computeCentroid(int n, const Vector4 * points, const float * weights, const Vector4 & metric);
-
-        Vector3 computeCovariance(int n, const Vector3 * points, float * covariance);
-        Vector3 computeCovariance(int n, const Vector3 * points, const float * weights, const Vector3 & metric, float * covariance);
-
-        Vector4 computeCovariance(int n, const Vector4 * points, float * covariance);
-        Vector4 computeCovariance(int n, const Vector4 * points, const float * weights, const Vector4 & metric, float * covariance);
-
-        Vector3 computePrincipalComponent_PowerMethod(int n, const Vector3 * points);
-        Vector3 computePrincipalComponent_PowerMethod(int n, const Vector3 * points, const float * weights, const Vector3 & metric);
-
-        Vector3 computePrincipalComponent_EigenSolver(int n, const Vector3 * points);
-        Vector3 computePrincipalComponent_EigenSolver(int n, const Vector3 * points, const float * weights, const Vector3 & metric);
-
-		Vector4 computePrincipalComponent_EigenSolver(int n, const Vector4 * points);
-        Vector4 computePrincipalComponent_EigenSolver(int n, const Vector4 * points, const float * weights, const Vector4 & metric);
-
-        Vector3 computePrincipalComponent_SVD(int n, const Vector3 * points);
-        Vector4 computePrincipalComponent_SVD(int n, const Vector4 * points);
-
-        Plane bestPlane(int n, const Vector3 * points);
-        bool isPlanar(int n, const Vector3 * points, float epsilon = NV_EPSILON);
-
-        bool eigenSolveSymmetric3(const float matrix[6], float eigenValues[3], Vector3 eigenVectors[3]);
-        bool eigenSolveSymmetric4(const float matrix[10], float eigenValues[4], Vector4 eigenVectors[4]);
-
-        // Returns number of clusters [1-4].
-        int compute4Means(int n, const Vector3 * points, const float * weights, const Vector3 & metric, Vector3 * cluster);
-    }
-
-} // nv namespace
-
-#endif // NV_MATH_FITTING_H
diff --git a/thirdparty/thekla_atlas/nvmath/KahanSum.h b/thirdparty/thekla_atlas/nvmath/KahanSum.h
deleted file mode 100644
index 18d475e7cb..0000000000
--- a/thirdparty/thekla_atlas/nvmath/KahanSum.h
+++ /dev/null
@@ -1,39 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_KAHANSUM_H
-#define NV_MATH_KAHANSUM_H
-
-#include "nvmath.h"
-
-namespace nv
-{
-
-    class KahanSum
-    {
-    public:
-        KahanSum() : accum(0.0f), err(0) {};
-
-        void add(float f)
-        {
-            float compensated = f + err;
-            float tmp = accum + compensated;
-            err = accum - tmp;
-            err += compensated;
-            accum = tmp;
-        }
-
-        float sum() const
-        {
-            return accum;
-        }
-
-    private:
-        float accum;
-        float err;
-    };
-
-} // nv namespace
-
-
-#endif // NV_MATH_KAHANSUM_H
diff --git a/thirdparty/thekla_atlas/nvmath/Matrix.cpp b/thirdparty/thekla_atlas/nvmath/Matrix.cpp
deleted file mode 100644
index 29bd19f5f8..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Matrix.cpp
+++ /dev/null
@@ -1,441 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "Matrix.inl"
-#include "Vector.inl"
-
-#include "nvcore/Array.inl"
-
-#include <float.h>
-
-#if !NV_CC_MSVC && !NV_OS_ORBIS
-#include <alloca.h>
-#endif
-
-using namespace nv;
-
-
-// Given a matrix a[1..n][1..n], this routine replaces it by the LU decomposition of a rowwise
-// permutation of itself. a and n are input. a is output, arranged as in equation (2.3.14) above;
-// indx[1..n] is an output vector that records the row permutation effected by the partial
-// pivoting; d is output as -1 depending on whether the number of row interchanges was even
-// or odd, respectively. This routine is used in combination with lubksb to solve linear equations
-// or invert a matrix.
-static bool ludcmp(float **a, int n, int *indx, float *d)
-{
-    const float TINY = 1.0e-20f;
-
-    float * vv = (float*)alloca(sizeof(float) * n);    // vv stores the implicit scaling of each row.
-
-    *d = 1.0; // No row interchanges yet.
-    for (int i = 0; i < n; i++) { // Loop over rows to get the implicit scaling information.
-    
-        float big = 0.0;
-        for (int j = 0; j < n; j++) {
-            big = max(big, fabsf(a[i][j]));
-        }
-        if (big == 0) {
-            return false;   // Singular matrix
-        }
-        
-        // No nonzero largest element.
-        vv[i] = 1.0f / big; // Save the scaling.
-    }
-
-    for (int j = 0; j < n; j++) {       // This is the loop over columns of Crout's method.
-        for (int i = 0; i < j; i++) {   // This is equation (2.3.12) except for i = j.
-            float sum = a[i][j];
-            for (int k = 0; k < i; k++) sum -= a[i][k]*a[k][j];
-            a[i][j] = sum;
-        }
-
-        int imax = -1;
-        float big = 0.0;                // Initialize for the search for largest pivot element.
-        for (int i = j; i < n; i++) {   // This is i = j of equation (2.3.12) and i = j+ 1 : : : N
-            float sum = a[i][j];              // of equation (2.3.13).
-            for (int k = 0; k < j; k++) {
-                sum -= a[i][k]*a[k][j];
-            }
-            a[i][j]=sum;
-
-            float dum = vv[i]*fabs(sum);
-            if (dum >= big) {
-                // Is the figure of merit for the pivot better than the best so far?
-                big = dum;
-                imax = i;
-            }
-        }
-        nvDebugCheck(imax != -1);
-
-        if (j != imax) {                // Do we need to interchange rows?
-            for (int k = 0; k < n; k++) {   // Yes, do so...
-                swap(a[imax][k], a[j][k]);
-            }
-            *d = -(*d); // ...and change the parity of d.
-            vv[imax]=vv[j]; // Also interchange the scale factor.
-        }
-
-        indx[j]=imax;
-        if (a[j][j] == 0.0) a[j][j] = TINY;
-        
-        // If the pivot element is zero the matrix is singular (at least to the precision of the
-        // algorithm). For some applications on singular matrices, it is desirable to substitute
-        // TINY for zero.
-        if (j != n-1) { // Now, finally, divide by the pivot element.
-            float dum = 1.0f / a[j][j];
-            for (int i = j+1; i < n; i++) a[i][j] *= dum;
-        }
-    } // Go back for the next column in the reduction.
-
-    return true;
-}
-
-
-// Solves the set of n linear equations Ax = b. Here a[1..n][1..n] is input, not as the matrix
-// A but rather as its LU decomposition, determined by the routine ludcmp. indx[1..n] is input
-// as the permutation vector returned by ludcmp. b[1..n] is input as the right-hand side vector
-// B, and returns with the solution vector X. a, n, and indx are not modified by this routine
-// and can be left in place for successive calls with different right-hand sides b. This routine takes
-// into account the possibility that b will begin with many zero elements, so it is efficient for use
-// in matrix inversion.
-static void lubksb(float **a, int n, int *indx, float b[])
-{
-    int ii = 0;
-    for (int i=0; i<n; i++) {   // When ii is set to a positive value, it will become 
-        int ip = indx[i];       // the index of the first nonvanishing element of b. We now 
-        float sum = b[ip];      // do the forward substitution, equation (2.3.6). The 
-        b[ip] = b[i];           // only new wrinkle is to unscramble the permutation as we go.
-        if (ii != 0) {
-            for (int j = ii-1; j < i; j++) sum -= a[i][j]*b[j];
-        }
-        else if (sum != 0.0f) {
-            ii = i+1;             // A nonzero element was encountered, so from now on we 
-        }
-        b[i] = sum;             // will have to do the sums in the loop above.
-    }
-    for (int i=n-1; i>=0; i--) {  // Now we do the backsubstitution, equation (2.3.7).
-        float sum = b[i];
-        for (int j = i+1; j < n; j++) {
-            sum -= a[i][j]*b[j];
-        }
-        b[i] = sum/a[i][i];     // Store a component of the solution vector X.
-    } // All done!
-}
-
-
-bool nv::solveLU(const Matrix & A, const Vector4 & b, Vector4 * x)
-{
-    nvDebugCheck(x != NULL);
-
-    float m[4][4];
-    float *a[4] = {m[0], m[1], m[2], m[3]};
-    int idx[4];
-    float d;
-
-    for (int y = 0; y < 4; y++) {
-        for (int x = 0; x < 4; x++) {
-            a[x][y] = A(x, y);
-        }
-    }
-
-    // Create LU decomposition.
-    if (!ludcmp(a, 4, idx, &d)) {
-        // Singular matrix.
-        return false;
-    }
-
-    // Init solution.
-    *x = b;
-
-    // Do back substitution.
-    lubksb(a, 4, idx, x->component);
-
-    return true;
-}
-
-// @@ Not tested.
-Matrix nv::inverseLU(const Matrix & A)
-{
-    Vector4 Ai[4];
-
-    solveLU(A, Vector4(1, 0, 0, 0), &Ai[0]);
-    solveLU(A, Vector4(0, 1, 0, 0), &Ai[1]);
-    solveLU(A, Vector4(0, 0, 1, 0), &Ai[2]);
-    solveLU(A, Vector4(0, 0, 0, 1), &Ai[3]);
-
-    return Matrix(Ai[0], Ai[1], Ai[2], Ai[3]);
-}
-
-
-
-bool nv::solveLU(const Matrix3 & A, const Vector3 & b, Vector3 * x)
-{
-    nvDebugCheck(x != NULL);
-
-    float m[3][3];
-    float *a[3] = {m[0], m[1], m[2]};
-    int idx[3];
-    float d;
-
-    for (int y = 0; y < 3; y++) {
-        for (int x = 0; x < 3; x++) {
-            a[x][y] = A(x, y);
-        }
-    }
-
-    // Create LU decomposition.
-    if (!ludcmp(a, 3, idx, &d)) {
-        // Singular matrix.
-        return false;
-    }
-
-    // Init solution.
-    *x = b;
-
-    // Do back substitution.
-    lubksb(a, 3, idx, x->component);
-
-    return true;
-}
-
-
-bool nv::solveCramer(const Matrix & A, const Vector4 & b, Vector4 * x)
-{
-    nvDebugCheck(x != NULL);
-
-    *x = transform(inverseCramer(A), b);
-    
-    return true; // @@ Return false if determinant(A) == 0 !
-}
-
-bool nv::solveCramer(const Matrix3 & A, const Vector3 & b, Vector3 * x)
-{
-    nvDebugCheck(x != NULL);
-
-    const float det = A.determinant();
-    if (equal(det, 0.0f)) {   // @@ Use input epsilon.
-        return false;
-    }
-
-    Matrix3 Ai = inverseCramer(A);
-
-    *x = transform(Ai, b);
-    
-    return true;
-}
-
-
-
-// Inverse using gaussian elimination. From Jon's code.
-Matrix nv::inverse(const Matrix & m) {
-
-    Matrix A = m;
-    Matrix B(identity);
-
-    int i, j, k;
-    float max, t, det, pivot;
-
-    det = 1.0;
-    for (i=0; i<4; i++) {               /* eliminate in column i, below diag */
-        max = -1.;
-        for (k=i; k<4; k++)             /* find pivot for column i */
-            if (fabs(A(k, i)) > max) {
-                max = fabs(A(k, i));
-                j = k;
-            }
-        if (max<=0.) return B;         /* if no nonzero pivot, PUNT */
-        if (j!=i) {                     /* swap rows i and j */
-            for (k=i; k<4; k++)
-                swap(A(i, k), A(j, k));
-            for (k=0; k<4; k++)
-                swap(B(i, k), B(j, k));
-            det = -det;
-        }
-        pivot = A(i, i);
-        det *= pivot;
-        for (k=i+1; k<4; k++)           /* only do elems to right of pivot */
-            A(i, k) /= pivot;
-        for (k=0; k<4; k++)
-            B(i, k) /= pivot;
-        /* we know that A(i, i) will be set to 1, so don't bother to do it */
-
-        for (j=i+1; j<4; j++) {         /* eliminate in rows below i */
-            t = A(j, i);                /* we're gonna zero this guy */
-            for (k=i+1; k<4; k++)       /* subtract scaled row i from row j */
-                A(j, k) -= A(i, k)*t;   /* (ignore k<=i, we know they're 0) */
-            for (k=0; k<4; k++)
-                B(j, k) -= B(i, k)*t;
-        }
-    }
-
-    /*---------- backward elimination ----------*/
-
-    for (i=4-1; i>0; i--) {             /* eliminate in column i, above diag */
-        for (j=0; j<i; j++) {           /* eliminate in rows above i */
-            t = A(j, i);                /* we're gonna zero this guy */
-            for (k=0; k<4; k++)         /* subtract scaled row i from row j */
-                B(j, k) -= B(i, k)*t;
-        }
-    }
-
-    return B;
-}
-
-
-Matrix3 nv::inverse(const Matrix3 & m) {
-
-    Matrix3 A = m;
-    Matrix3 B(identity);
-
-    int i, j, k;
-    float max, t, det, pivot;
-
-    det = 1.0;
-    for (i=0; i<3; i++) {               /* eliminate in column i, below diag */
-        max = -1.;
-        for (k=i; k<3; k++)             /* find pivot for column i */
-            if (fabs(A(k, i)) > max) {
-                max = fabs(A(k, i));
-                j = k;
-            }
-        if (max<=0.) return B;         /* if no nonzero pivot, PUNT */
-        if (j!=i) {                     /* swap rows i and j */
-            for (k=i; k<3; k++)
-                swap(A(i, k), A(j, k));
-            for (k=0; k<3; k++)
-                swap(B(i, k), B(j, k));
-            det = -det;
-        }
-        pivot = A(i, i);
-        det *= pivot;
-        for (k=i+1; k<3; k++)           /* only do elems to right of pivot */
-            A(i, k) /= pivot;
-        for (k=0; k<3; k++)
-            B(i, k) /= pivot;
-        /* we know that A(i, i) will be set to 1, so don't bother to do it */
-
-        for (j=i+1; j<3; j++) {         /* eliminate in rows below i */
-            t = A(j, i);                /* we're gonna zero this guy */
-            for (k=i+1; k<3; k++)       /* subtract scaled row i from row j */
-                A(j, k) -= A(i, k)*t;   /* (ignore k<=i, we know they're 0) */
-            for (k=0; k<3; k++)
-                B(j, k) -= B(i, k)*t;
-        }
-    }
-
-    /*---------- backward elimination ----------*/
-
-    for (i=3-1; i>0; i--) {             /* eliminate in column i, above diag */
-        for (j=0; j<i; j++) {           /* eliminate in rows above i */
-            t = A(j, i);                /* we're gonna zero this guy */
-            for (k=0; k<3; k++)         /* subtract scaled row i from row j */
-                B(j, k) -= B(i, k)*t;
-        }
-    }
-
-    return B;
-}
-
-
-
-
-
-#if 0 
-
-// Copyright (C) 1999-2004 Michael Garland.
-// 
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, and/or sell copies of the Software, and to permit persons
-// to whom the Software is furnished to do so, provided that the above
-// copyright notice(s) and this permission notice appear in all copies of
-// the Software and that both the above copyright notice(s) and this
-// permission notice appear in supporting documentation.
-// 
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-// OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-// HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
-// INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
-// FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-// NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-// WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-// 
-// Except as contained in this notice, the name of a copyright holder
-// shall not be used in advertising or otherwise to promote the sale, use
-// or other dealings in this Software without prior written authorization
-// of the copyright holder.
-
-
-// Matrix inversion code for 4x4 matrices using Gaussian elimination
-// with partial pivoting.  This is a specialized version of a
-// procedure originally due to Paul Heckbert <ph@cs.cmu.edu>.
-//
-// Returns determinant of A, and B=inverse(A)
-// If matrix A is singular, returns 0 and leaves trash in B.
-//
-#define SWAP(a, b, t)   {t = a; a = b; b = t;}
-double invert(Mat4& B, const Mat4& m)
-{
-    Mat4 A = m;
-    int i, j, k;
-    double max, t, det, pivot;
-
-    /*---------- forward elimination ----------*/
-
-    for (i=0; i<4; i++)                 /* put identity matrix in B */
-        for (j=0; j<4; j++)
-            B(i, j) = (double)(i==j);
-
-    det = 1.0;
-    for (i=0; i<4; i++) {               /* eliminate in column i, below diag */
-        max = -1.;
-        for (k=i; k<4; k++)             /* find pivot for column i */
-            if (fabs(A(k, i)) > max) {
-                max = fabs(A(k, i));
-                j = k;
-            }
-        if (max<=0.) return 0.;         /* if no nonzero pivot, PUNT */
-        if (j!=i) {                     /* swap rows i and j */
-            for (k=i; k<4; k++)
-                SWAP(A(i, k), A(j, k), t);
-            for (k=0; k<4; k++)
-                SWAP(B(i, k), B(j, k), t);
-            det = -det;
-        }
-        pivot = A(i, i);
-        det *= pivot;
-        for (k=i+1; k<4; k++)           /* only do elems to right of pivot */
-            A(i, k) /= pivot;
-        for (k=0; k<4; k++)
-            B(i, k) /= pivot;
-        /* we know that A(i, i) will be set to 1, so don't bother to do it */
-
-        for (j=i+1; j<4; j++) {         /* eliminate in rows below i */
-            t = A(j, i);                /* we're gonna zero this guy */
-            for (k=i+1; k<4; k++)       /* subtract scaled row i from row j */
-                A(j, k) -= A(i, k)*t;   /* (ignore k<=i, we know they're 0) */
-            for (k=0; k<4; k++)
-                B(j, k) -= B(i, k)*t;
-        }
-    }
-
-    /*---------- backward elimination ----------*/
-
-    for (i=4-1; i>0; i--) {             /* eliminate in column i, above diag */
-        for (j=0; j<i; j++) {           /* eliminate in rows above i */
-            t = A(j, i);                /* we're gonna zero this guy */
-            for (k=0; k<4; k++)         /* subtract scaled row i from row j */
-                B(j, k) -= B(i, k)*t;
-        }
-    }
-
-    return det;
-}
-
-#endif // 0
-
-
-
diff --git a/thirdparty/thekla_atlas/nvmath/Matrix.h b/thirdparty/thekla_atlas/nvmath/Matrix.h
deleted file mode 100644
index 506bdad1ca..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Matrix.h
+++ /dev/null
@@ -1,113 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_MATRIX_H
-#define NV_MATH_MATRIX_H
-
-#include "Vector.h"
-
-// - Matrices are stored in memory in *column major* order.
-// - Points are to be though of as column vectors.
-// - Transformation of a point p by a matrix M is: p' = M * p
-
-namespace nv
-{
-    enum identity_t { identity };
-
-    // 3x3 matrix.
-    class NVMATH_CLASS Matrix3
-    {
-    public:
-        Matrix3();
-        explicit Matrix3(float f);
-        explicit Matrix3(identity_t);
-        Matrix3(const Matrix3 & m);
-        Matrix3(Vector3::Arg v0, Vector3::Arg v1, Vector3::Arg v2);
-
-        float data(uint idx) const;
-        float & data(uint idx);
-        float get(uint row, uint col) const;
-        float operator()(uint row, uint col) const;
-        float & operator()(uint row, uint col);
-
-        Vector3 row(uint i) const;
-        Vector3 column(uint i) const;
-
-        void operator*=(float s);
-        void operator/=(float s);
-        void operator+=(const Matrix3 & m);
-        void operator-=(const Matrix3 & m);
-
-        void scale(float s);
-        void scale(Vector3::Arg s);
-        float determinant() const;
-
-    private:
-        float m_data[9];
-    };
-
-    // Solve equation system using LU decomposition and back-substitution.
-    extern bool solveLU(const Matrix3 & m, const Vector3 & b, Vector3 * x);
-
-    // Solve equation system using Cramer's inverse.
-    extern bool solveCramer(const Matrix3 & A, const Vector3 & b, Vector3 * x);
-
-
-    // 4x4 matrix.
-    class NVMATH_CLASS Matrix
-    {
-    public:
-        typedef Matrix const & Arg;
-
-        Matrix();
-        explicit Matrix(float f);
-        explicit Matrix(identity_t);
-        Matrix(const Matrix3 & m);
-        Matrix(const Matrix & m);
-        Matrix(Vector4::Arg v0, Vector4::Arg v1, Vector4::Arg v2, Vector4::Arg v3);
-        //explicit Matrix(const float m[]);	// m is assumed to contain 16 elements
-
-        float data(uint idx) const;
-        float & data(uint idx);
-        float get(uint row, uint col) const;
-        float operator()(uint row, uint col) const;
-        float & operator()(uint row, uint col);
-        const float * ptr() const;
-
-        Vector4 row(uint i) const;
-        Vector4 column(uint i) const;
-
-        void zero();
-        void identity();
-
-        void scale(float s);
-        void scale(Vector3::Arg s);
-        void translate(Vector3::Arg t);
-        void rotate(float theta, float v0, float v1, float v2);
-        float determinant() const;
-
-        void operator+=(const Matrix & m);
-        void operator-=(const Matrix & m);
-
-        void apply(Matrix::Arg m);
-
-    private:
-        float m_data[16];
-    };
-
-    // Solve equation system using LU decomposition and back-substitution.
-    extern bool solveLU(const Matrix & A, const Vector4 & b, Vector4 * x);
-
-    // Solve equation system using Cramer's inverse.
-    extern bool solveCramer(const Matrix & A, const Vector4 & b, Vector4 * x);
-
-    // Compute inverse using LU decomposition.
-    extern Matrix inverseLU(const Matrix & m);
-
-    // Compute inverse using Gaussian elimination and partial pivoting.
-    extern Matrix inverse(const Matrix & m);
-    extern Matrix3 inverse(const Matrix3 & m);
-
-} // nv namespace
-
-#endif // NV_MATH_MATRIX_H
diff --git a/thirdparty/thekla_atlas/nvmath/Matrix.inl b/thirdparty/thekla_atlas/nvmath/Matrix.inl
deleted file mode 100644
index c0d99d9fe0..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Matrix.inl
+++ /dev/null
@@ -1,1274 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_MATRIX_INL
-#define NV_MATH_MATRIX_INL
-
-#include "Matrix.h"
-
-namespace nv
-{
-    inline Matrix3::Matrix3() {}
-    
-    inline Matrix3::Matrix3(float f)
-    {
-        for(int i = 0; i < 9; i++) {
-            m_data[i] = f;
-        }
-    }
-
-    inline Matrix3::Matrix3(identity_t)
-    {
-        for(int i = 0; i < 3; i++) {
-            for(int j = 0; j < 3; j++) {
-                m_data[3*j+i] = (i == j) ? 1.0f : 0.0f;
-            }
-        }
-    }
-
-    inline Matrix3::Matrix3(const Matrix3 & m)
-    {
-        for(int i = 0; i < 9; i++) {
-            m_data[i] = m.m_data[i];
-        }
-    }
-    
-    inline Matrix3::Matrix3(Vector3::Arg v0, Vector3::Arg v1, Vector3::Arg v2)
-    {
-        m_data[0] = v0.x; m_data[1] = v0.y; m_data[2] = v0.z;
-        m_data[3] = v1.x; m_data[4] = v1.y; m_data[5] = v1.z;
-        m_data[6] = v2.x; m_data[7] = v2.y; m_data[8] = v2.z;
-    }
-
-    inline float Matrix3::data(uint idx) const
-    {
-        nvDebugCheck(idx < 9);
-        return m_data[idx];
-    }
-    inline float & Matrix3::data(uint idx)
-    {
-        nvDebugCheck(idx < 9);
-        return m_data[idx];
-    }
-    inline float Matrix3::get(uint row, uint col) const
-    {
-        nvDebugCheck(row < 3 && col < 3);
-        return m_data[col * 3 + row];
-    }
-    inline float Matrix3::operator()(uint row, uint col) const
-    {
-        nvDebugCheck(row < 3 && col < 3);
-        return m_data[col * 3 + row];
-    }
-    inline float & Matrix3::operator()(uint row, uint col)
-    {
-        nvDebugCheck(row < 3 && col < 3);
-        return m_data[col * 3 + row];
-    }
-
-    inline Vector3 Matrix3::row(uint i) const
-    {
-        nvDebugCheck(i < 3);
-        return Vector3(get(i, 0), get(i, 1), get(i, 2));
-    }
-    inline Vector3 Matrix3::column(uint i) const
-    {
-        nvDebugCheck(i < 3);
-        return Vector3(get(0, i), get(1, i), get(2, i));
-    }
-
-    inline void Matrix3::operator*=(float s)
-    {
-        for(int i = 0; i < 9; i++) {
-            m_data[i] *= s;
-        }
-    }
-
-    inline void Matrix3::operator/=(float s)
-    {
-        float is = 1.0f /s;
-        for(int i = 0; i < 9; i++) {
-            m_data[i] *= is;
-        }
-    }
-
-    inline void Matrix3::operator+=(const Matrix3 & m)
-    {
-        for(int i = 0; i < 9; i++) {
-            m_data[i] += m.m_data[i];
-        }
-    }
-
-    inline void Matrix3::operator-=(const Matrix3 & m)
-    {
-        for(int i = 0; i < 9; i++) {
-            m_data[i] -= m.m_data[i];
-        }
-    }
-
-    inline Matrix3 operator+(const Matrix3 & a, const Matrix3 & b)
-    {
-        Matrix3 m = a;
-        m += b;
-        return m;
-    }
-
-    inline Matrix3 operator-(const Matrix3 & a, const Matrix3 & b)
-    {
-        Matrix3 m = a;
-        m -= b;
-        return m;
-    }
-
-    inline Matrix3 operator*(const Matrix3 & a, float s)
-    {
-        Matrix3 m = a;
-        m *= s;
-        return m;
-    }
-
-    inline Matrix3 operator*(float s, const Matrix3 & a)
-    {
-        Matrix3 m = a;
-        m *= s;
-        return m;
-    }
-
-    inline Matrix3 operator/(const Matrix3 & a, float s)
-    {
-        Matrix3 m = a;
-        m /= s;
-        return m;
-    }
-
-    inline Matrix3 mul(const Matrix3 & a, const Matrix3 & b)
-    {
-        Matrix3 m;
-
-        for(int i = 0; i < 3; i++) {
-            const float ai0 = a(i,0), ai1 = a(i,1), ai2 = a(i,2);
-            m(i, 0) = ai0 * b(0,0) + ai1 * b(1,0) + ai2 * b(2,0);
-            m(i, 1) = ai0 * b(0,1) + ai1 * b(1,1) + ai2 * b(2,1);
-            m(i, 2) = ai0 * b(0,2) + ai1 * b(1,2) + ai2 * b(2,2);
-        }
-
-        return m;
-    }
-
-    inline Matrix3 operator*(const Matrix3 & a, const Matrix3 & b)
-    {
-        return mul(a, b);
-    }
-
-    // Transform the given 3d vector with the given matrix.
-    inline Vector3 transform(const Matrix3 & m, const Vector3 & p)
-    {
-        return Vector3(
-            p.x * m(0,0) + p.y * m(0,1) + p.z * m(0,2),
-            p.x * m(1,0) + p.y * m(1,1) + p.z * m(1,2),
-            p.x * m(2,0) + p.y * m(2,1) + p.z * m(2,2));
-    }
-
-    inline void Matrix3::scale(float s)
-    {
-        for (int i = 0; i < 9; i++) {
-            m_data[i] *= s;
-        }
-    }
-
-    inline void Matrix3::scale(Vector3::Arg s)
-    {
-        m_data[0] *= s.x; m_data[1] *= s.x; m_data[2] *= s.x;
-        m_data[3] *= s.y; m_data[4] *= s.y; m_data[5] *= s.y;
-        m_data[6] *= s.z; m_data[7] *= s.z; m_data[8] *= s.z;
-    }
-
-    inline float Matrix3::determinant() const
-    {
-        return 
-            get(0,0) * get(1,1) * get(2,2) + 
-            get(0,1) * get(1,2) * get(2,0) + 
-            get(0,2) * get(1,0) * get(2,1) -
-            get(0,2) * get(1,1) * get(2,0) - 
-            get(0,1) * get(1,0) * get(2,2) -
-            get(0,0) * get(1,2) * get(2,1);
-    }
-
-    // Inverse using Cramer's rule.
-    inline Matrix3 inverseCramer(const Matrix3 & m)
-    {
-        const float det = m.determinant();
-        if (equal(det, 0.0f, 0.0f)) {
-            return Matrix3(0);
-        }
-
-        Matrix3 r;
-
-        r.data(0) =  - m.data(5) * m.data(7) + m.data(4) * m.data(8);
-        r.data(1) =  + m.data(5) * m.data(6) - m.data(3) * m.data(8);
-        r.data(2) =  - m.data(4) * m.data(6) + m.data(3) * m.data(7);
-
-        r.data(3) =  + m.data(2) * m.data(7) - m.data(1) * m.data(8);
-        r.data(4) =  - m.data(2) * m.data(6) + m.data(0) * m.data(8);
-        r.data(5) =  + m.data(1) * m.data(6) - m.data(0) * m.data(7);
-
-        r.data(6) =  - m.data(2) * m.data(4) + m.data(1) * m.data(5);
-        r.data(7) =  + m.data(2) * m.data(3) - m.data(0) * m.data(5);
-        r.data(8) =  - m.data(1) * m.data(3) + m.data(0) * m.data(4);
-
-        r.scale(1.0f / det);
-
-        return r;
-    }
-
-
-
-    inline Matrix::Matrix()
-    {
-    }
-
-    inline Matrix::Matrix(float f)
-    {
-        for(int i = 0; i < 16; i++) {
-            m_data[i] = 0.0f;
-        }
-    }
-
-    inline Matrix::Matrix(identity_t)
-    {
-        for(int i = 0; i < 4; i++) {
-            for(int j = 0; j < 4; j++) {
-                m_data[4*j+i] = (i == j) ? 1.0f : 0.0f;
-            }
-        }
-    }
-
-    inline Matrix::Matrix(const Matrix & m)
-    {
-        for(int i = 0; i < 16; i++) {
-            m_data[i] = m.m_data[i];
-        }
-    }
-
-    inline Matrix::Matrix(const Matrix3 & m)
-    {
-        for(int i = 0; i < 3; i++) {
-            for(int j = 0; j < 3; j++) {
-                operator()(i, j) = m.get(i, j);
-            }
-        }
-        for(int i = 0; i < 4; i++) {
-            operator()(3, i) = 0;
-            operator()(i, 3) = 0;
-        }
-    }
-
-    inline Matrix::Matrix(Vector4::Arg v0, Vector4::Arg v1, Vector4::Arg v2, Vector4::Arg v3)
-    {
-        m_data[ 0] = v0.x; m_data[ 1] = v0.y; m_data[ 2] = v0.z; m_data[ 3] = v0.w;
-        m_data[ 4] = v1.x; m_data[ 5] = v1.y; m_data[ 6] = v1.z; m_data[ 7] = v1.w;
-        m_data[ 8] = v2.x; m_data[ 9] = v2.y; m_data[10] = v2.z; m_data[11] = v2.w;
-        m_data[12] = v3.x; m_data[13] = v3.y; m_data[14] = v3.z; m_data[15] = v3.w;
-    }
-
-    /*inline Matrix::Matrix(const float m[])
-    {
-        for(int i = 0; i < 16; i++) {
-            m_data[i] = m[i];
-        }
-    }*/
-
-
-    // Accessors
-    inline float Matrix::data(uint idx) const
-    {
-        nvDebugCheck(idx < 16);
-        return m_data[idx];
-    }
-    inline float & Matrix::data(uint idx)
-    {
-        nvDebugCheck(idx < 16);
-        return m_data[idx];
-    }
-    inline float Matrix::get(uint row, uint col) const
-    {
-        nvDebugCheck(row < 4 && col < 4);
-        return m_data[col * 4 + row];
-    }
-    inline float Matrix::operator()(uint row, uint col) const
-    {
-        nvDebugCheck(row < 4 && col < 4);
-        return m_data[col * 4 + row];
-    }
-    inline float & Matrix::operator()(uint row, uint col)
-    {
-        nvDebugCheck(row < 4 && col < 4);
-        return m_data[col * 4 + row];
-    }
-
-    inline const float * Matrix::ptr() const
-    {
-        return m_data;
-    }
-
-    inline Vector4 Matrix::row(uint i) const
-    {
-        nvDebugCheck(i < 4);
-        return Vector4(get(i, 0), get(i, 1), get(i, 2), get(i, 3));
-    }
-
-    inline Vector4 Matrix::column(uint i) const
-    {
-        nvDebugCheck(i < 4);
-        return Vector4(get(0, i), get(1, i), get(2, i), get(3, i));
-    }
-
-    inline void Matrix::zero()
-    {
-        m_data[0] = 0; m_data[1] = 0; m_data[2] = 0; m_data[3] = 0;
-        m_data[4] = 0; m_data[5] = 0; m_data[6] = 0; m_data[7] = 0;
-        m_data[8] = 0; m_data[9] = 0; m_data[10] = 0; m_data[11] = 0;
-        m_data[12] = 0; m_data[13] = 0; m_data[14] = 0; m_data[15] = 0;
-    }
-
-    inline void Matrix::identity()
-    {
-        m_data[0] = 1; m_data[1] = 0; m_data[2] = 0; m_data[3] = 0;
-        m_data[4] = 0; m_data[5] = 1; m_data[6] = 0; m_data[7] = 0;
-        m_data[8] = 0; m_data[9] = 0; m_data[10] = 1; m_data[11] = 0;
-        m_data[12] = 0; m_data[13] = 0; m_data[14] = 0; m_data[15] = 1;
-    }
-
-    // Apply scale.
-    inline void Matrix::scale(float s)
-    {
-        m_data[0] *= s; m_data[1] *= s; m_data[2] *= s; m_data[3] *= s;
-        m_data[4] *= s; m_data[5] *= s; m_data[6] *= s; m_data[7] *= s;
-        m_data[8] *= s; m_data[9] *= s; m_data[10] *= s; m_data[11] *= s;
-        m_data[12] *= s; m_data[13] *= s; m_data[14] *= s; m_data[15] *= s;
-    }
-
-    // Apply scale.
-    inline void Matrix::scale(Vector3::Arg s)
-    {
-        m_data[0] *= s.x; m_data[1] *= s.x; m_data[2] *= s.x; m_data[3] *= s.x;
-        m_data[4] *= s.y; m_data[5] *= s.y; m_data[6] *= s.y; m_data[7] *= s.y;
-        m_data[8] *= s.z; m_data[9] *= s.z; m_data[10] *= s.z; m_data[11] *= s.z;
-    }
-
-    // Apply translation.
-    inline void Matrix::translate(Vector3::Arg t)
-    {
-        m_data[12] = m_data[0] * t.x + m_data[4] * t.y + m_data[8]  * t.z + m_data[12];
-        m_data[13] = m_data[1] * t.x + m_data[5] * t.y + m_data[9]  * t.z + m_data[13];
-        m_data[14] = m_data[2] * t.x + m_data[6] * t.y + m_data[10] * t.z + m_data[14];
-        m_data[15] = m_data[3] * t.x + m_data[7] * t.y + m_data[11] * t.z + m_data[15];
-    }
-
-    Matrix rotation(float theta, float v0, float v1, float v2);
-
-    // Apply rotation.
-    inline void Matrix::rotate(float theta, float v0, float v1, float v2)
-    {
-        Matrix R(rotation(theta, v0, v1, v2));
-        apply(R);
-    }
-
-    // Apply transform.
-    inline void Matrix::apply(Matrix::Arg m)
-    {
-        nvDebugCheck(this != &m);
-
-        for(int i = 0; i < 4; i++) {
-            const float ai0 = get(i,0), ai1 = get(i,1), ai2 = get(i,2), ai3 = get(i,3);
-            m_data[0 + i] = ai0 * m(0,0) + ai1 * m(1,0) + ai2 * m(2,0) + ai3 * m(3,0);
-            m_data[4 + i] = ai0 * m(0,1) + ai1 * m(1,1) + ai2 * m(2,1) + ai3 * m(3,1);
-            m_data[8 + i] = ai0 * m(0,2) + ai1 * m(1,2) + ai2 * m(2,2) + ai3 * m(3,2);
-            m_data[12+ i] = ai0 * m(0,3) + ai1 * m(1,3) + ai2 * m(2,3) + ai3 * m(3,3);
-        }
-    }
-
-    // Get scale matrix.
-    inline Matrix scale(Vector3::Arg s)
-    {
-        Matrix m(identity);
-        m(0,0) = s.x;
-        m(1,1) = s.y;
-        m(2,2) = s.z;
-        return m;
-    }
-
-    // Get scale matrix.
-    inline Matrix scale(float s)
-    {
-        Matrix m(identity);
-        m(0,0) = m(1,1) = m(2,2) = s;
-        return m;
-    }
-
-    // Get translation matrix.
-    inline Matrix translation(Vector3::Arg t)
-    {
-        Matrix m(identity);
-        m(0,3) = t.x;
-        m(1,3) = t.y;
-        m(2,3) = t.z;
-        return m;
-    }
-
-    // Get rotation matrix.
-    inline Matrix rotation(float theta, float v0, float v1, float v2)
-    {
-        float cost = cosf(theta);
-        float sint = sinf(theta);
-
-        Matrix m(identity);
-
-        if( 1 == v0 && 0 == v1 && 0 == v2 ) {
-            m(1,1) = cost; m(2,1) = -sint;
-            m(1,2) = sint; m(2,2) = cost;
-        }
-        else if( 0 == v0  && 1 == v1 && 0 == v2 ) {
-            m(0,0) = cost; m(2,0) = sint;
-            m(1,2) = -sint; m(2,2) = cost;
-        }
-        else if( 0 == v0 && 0 == v1 && 1 == v2 ) {
-            m(0,0) = cost; m(1,0) = -sint;
-            m(0,1) = sint; m(1,1) = cost;
-        } 
-        else {
-            float a2, b2, c2;
-            a2 = v0 * v0;
-            b2 = v1 * v1;
-            c2 = v2 * v2;
-
-            float iscale = 1.0f / sqrtf(a2 + b2 + c2);
-            v0 *= iscale;
-            v1 *= iscale;
-            v2 *= iscale;
-
-            float abm, acm, bcm;
-            float mcos, asin, bsin, csin;
-            mcos = 1.0f - cost;
-            abm = v0 * v1 * mcos;
-            acm = v0 * v2 * mcos;
-            bcm = v1 * v2 * mcos;
-            asin = v0 * sint;
-            bsin = v1 * sint;
-            csin = v2 * sint;
-            m(0,0) = a2 * mcos + cost;
-            m(1,0) = abm - csin;
-            m(2,0) = acm + bsin;
-            m(3,0) = abm + csin;
-            m(1,1) = b2 * mcos + cost;
-            m(2,1) = bcm - asin;
-            m(3,1) = acm - bsin;
-            m(1,2) = bcm + asin;
-            m(2,2) = c2 * mcos + cost;
-        }
-        return m;
-    }
-
-    //Matrix rotation(float yaw, float pitch, float roll);
-    //Matrix skew(float angle, Vector3::Arg v1, Vector3::Arg v2);
-
-    // Get frustum matrix.
-    inline Matrix frustum(float xmin, float xmax, float ymin, float ymax, float zNear, float zFar)
-    {
-        Matrix m(0.0f);
-
-        float doubleznear = 2.0f * zNear;
-        float one_deltax = 1.0f / (xmax - xmin);
-        float one_deltay = 1.0f / (ymax - ymin);
-        float one_deltaz = 1.0f / (zFar - zNear);
-
-        m(0,0) = doubleznear * one_deltax;
-        m(1,1) = doubleznear * one_deltay;
-        m(0,2) = (xmax + xmin) * one_deltax;
-        m(1,2) = (ymax + ymin) * one_deltay;
-        m(2,2) = -(zFar + zNear) * one_deltaz;
-        m(3,2) = -1.0f;
-        m(2,3) = -(zFar * doubleznear) * one_deltaz;
-
-        return m;
-    }
-
-    // Get inverse frustum matrix.
-    inline Matrix frustumInverse(float xmin, float xmax, float ymin, float ymax, float zNear, float zFar)
-    {
-        Matrix m(0.0f);
-
-        float one_doubleznear = 1.0f / (2.0f * zNear);
-        float one_doubleznearzfar = 1.0f / (2.0f * zNear * zFar);
-
-        m(0,0) = (xmax - xmin) * one_doubleznear;
-        m(0,3) = (xmax + xmin) * one_doubleznear;
-        m(1,1) = (ymax - ymin) * one_doubleznear;
-        m(1,3) = (ymax + ymin) * one_doubleznear;
-        m(2,3) = -1;
-        m(3,2) = -(zFar - zNear) * one_doubleznearzfar;
-        m(3,3) = (zFar + zNear) * one_doubleznearzfar;
-
-        return m;
-    }
-
-    // Get infinite frustum matrix.
-    inline Matrix frustum(float xmin, float xmax, float ymin, float ymax, float zNear)
-    {
-        Matrix m(0.0f);
-
-        float doubleznear = 2.0f * zNear;
-        float one_deltax = 1.0f / (xmax - xmin);
-        float one_deltay = 1.0f / (ymax - ymin);
-        float nudge = 1.0; // 0.999;
-
-        m(0,0) = doubleznear * one_deltax;
-        m(1,1) = doubleznear * one_deltay;
-        m(0,2) = (xmax + xmin) * one_deltax;
-        m(1,2) = (ymax + ymin) * one_deltay;
-        m(2,2) = -1.0f * nudge;
-        m(3,2) = -1.0f;
-        m(2,3) = -doubleznear * nudge;
-
-        return m;
-    }
-
-    // Get perspective matrix.
-    inline Matrix perspective(float fovy, float aspect, float zNear, float zFar)
-    {
-        float xmax = zNear * tan(fovy / 2);
-        float xmin = -xmax;
-
-        float ymax = xmax / aspect;
-        float ymin = -ymax;
-
-        return frustum(xmin, xmax, ymin, ymax, zNear, zFar);	
-    }
-
-    // Get inverse perspective matrix.
-    inline Matrix perspectiveInverse(float fovy, float aspect, float zNear, float zFar)
-    {
-        float xmax = zNear * tan(fovy / 2);
-        float xmin = -xmax;
-
-        float ymax = xmax / aspect;
-        float ymin = -ymax;
-
-        return frustumInverse(xmin, xmax, ymin, ymax, zNear, zFar);	
-    }
-
-    // Get infinite perspective matrix.
-    inline Matrix perspective(float fovy, float aspect, float zNear)
-    {
-        float x = zNear * tan(fovy / 2);
-        float y = x / aspect;
-        return frustum( -x, x, -y, y, zNear );	
-    }
-
-    // Get matrix determinant.
-    inline float Matrix::determinant() const
-    {
-        return 
-            m_data[3] * m_data[6] * m_data[ 9] * m_data[12] - m_data[2] * m_data[7] * m_data[ 9] * m_data[12] - m_data[3] * m_data[5] * m_data[10] * m_data[12] + m_data[1] * m_data[7] * m_data[10] * m_data[12] +
-            m_data[2] * m_data[5] * m_data[11] * m_data[12] - m_data[1] * m_data[6] * m_data[11] * m_data[12] - m_data[3] * m_data[6] * m_data[ 8] * m_data[13] + m_data[2] * m_data[7] * m_data[ 8] * m_data[13] +
-            m_data[3] * m_data[4] * m_data[10] * m_data[13] - m_data[0] * m_data[7] * m_data[10] * m_data[13] - m_data[2] * m_data[4] * m_data[11] * m_data[13] + m_data[0] * m_data[6] * m_data[11] * m_data[13] +
-            m_data[3] * m_data[5] * m_data[ 8] * m_data[14] - m_data[1] * m_data[7] * m_data[ 8] * m_data[14] - m_data[3] * m_data[4] * m_data[ 9] * m_data[14] + m_data[0] * m_data[7] * m_data[ 9] * m_data[14] +
-            m_data[1] * m_data[4] * m_data[11] * m_data[14] - m_data[0] * m_data[5] * m_data[11] * m_data[14] - m_data[2] * m_data[5] * m_data[ 8] * m_data[15] + m_data[1] * m_data[6] * m_data[ 8] * m_data[15] +
-            m_data[2] * m_data[4] * m_data[ 9] * m_data[15] - m_data[0] * m_data[6] * m_data[ 9] * m_data[15] - m_data[1] * m_data[4] * m_data[10] * m_data[15] + m_data[0] * m_data[5] * m_data[10] * m_data[15];
-    }
-
-    inline Matrix transpose(Matrix::Arg m)
-    {
-        Matrix r;
-        for (int i = 0; i < 4; i++)
-        {
-            for (int j = 0; j < 4; j++)
-            {
-                r(i, j) = m(j, i);
-            }
-        }
-        return r;
-    }
-
-    // Inverse using Cramer's rule.
-    inline Matrix inverseCramer(Matrix::Arg m)
-    {
-        Matrix r;
-        r.data( 0) = m.data(6)*m.data(11)*m.data(13) - m.data(7)*m.data(10)*m.data(13) + m.data(7)*m.data(9)*m.data(14) - m.data(5)*m.data(11)*m.data(14) - m.data(6)*m.data(9)*m.data(15) + m.data(5)*m.data(10)*m.data(15);
-        r.data( 1) = m.data(3)*m.data(10)*m.data(13) - m.data(2)*m.data(11)*m.data(13) - m.data(3)*m.data(9)*m.data(14) + m.data(1)*m.data(11)*m.data(14) + m.data(2)*m.data(9)*m.data(15) - m.data(1)*m.data(10)*m.data(15);
-        r.data( 2) = m.data(2)*m.data( 7)*m.data(13) - m.data(3)*m.data( 6)*m.data(13) + m.data(3)*m.data(5)*m.data(14) - m.data(1)*m.data( 7)*m.data(14) - m.data(2)*m.data(5)*m.data(15) + m.data(1)*m.data( 6)*m.data(15);
-        r.data( 3) = m.data(3)*m.data( 6)*m.data( 9) - m.data(2)*m.data( 7)*m.data( 9) - m.data(3)*m.data(5)*m.data(10) + m.data(1)*m.data( 7)*m.data(10) + m.data(2)*m.data(5)*m.data(11) - m.data(1)*m.data( 6)*m.data(11);
-        r.data( 4) = m.data(7)*m.data(10)*m.data(12) - m.data(6)*m.data(11)*m.data(12) - m.data(7)*m.data(8)*m.data(14) + m.data(4)*m.data(11)*m.data(14) + m.data(6)*m.data(8)*m.data(15) - m.data(4)*m.data(10)*m.data(15);
-        r.data( 5) = m.data(2)*m.data(11)*m.data(12) - m.data(3)*m.data(10)*m.data(12) + m.data(3)*m.data(8)*m.data(14) - m.data(0)*m.data(11)*m.data(14) - m.data(2)*m.data(8)*m.data(15) + m.data(0)*m.data(10)*m.data(15);
-        r.data( 6) = m.data(3)*m.data( 6)*m.data(12) - m.data(2)*m.data( 7)*m.data(12) - m.data(3)*m.data(4)*m.data(14) + m.data(0)*m.data( 7)*m.data(14) + m.data(2)*m.data(4)*m.data(15) - m.data(0)*m.data( 6)*m.data(15);
-        r.data( 7) = m.data(2)*m.data( 7)*m.data( 8) - m.data(3)*m.data( 6)*m.data( 8) + m.data(3)*m.data(4)*m.data(10) - m.data(0)*m.data( 7)*m.data(10) - m.data(2)*m.data(4)*m.data(11) + m.data(0)*m.data( 6)*m.data(11);
-        r.data( 8) = m.data(5)*m.data(11)*m.data(12) - m.data(7)*m.data( 9)*m.data(12) + m.data(7)*m.data(8)*m.data(13) - m.data(4)*m.data(11)*m.data(13) - m.data(5)*m.data(8)*m.data(15) + m.data(4)*m.data( 9)*m.data(15);
-        r.data( 9) = m.data(3)*m.data( 9)*m.data(12) - m.data(1)*m.data(11)*m.data(12) - m.data(3)*m.data(8)*m.data(13) + m.data(0)*m.data(11)*m.data(13) + m.data(1)*m.data(8)*m.data(15) - m.data(0)*m.data( 9)*m.data(15);
-        r.data(10) = m.data(1)*m.data( 7)*m.data(12) - m.data(3)*m.data( 5)*m.data(12) + m.data(3)*m.data(4)*m.data(13) - m.data(0)*m.data( 7)*m.data(13) - m.data(1)*m.data(4)*m.data(15) + m.data(0)*m.data( 5)*m.data(15);
-        r.data(11) = m.data(3)*m.data( 5)*m.data( 8) - m.data(1)*m.data( 7)*m.data( 8) - m.data(3)*m.data(4)*m.data( 9) + m.data(0)*m.data( 7)*m.data( 9) + m.data(1)*m.data(4)*m.data(11) - m.data(0)*m.data( 5)*m.data(11);
-        r.data(12) = m.data(6)*m.data( 9)*m.data(12) - m.data(5)*m.data(10)*m.data(12) - m.data(6)*m.data(8)*m.data(13) + m.data(4)*m.data(10)*m.data(13) + m.data(5)*m.data(8)*m.data(14) - m.data(4)*m.data( 9)*m.data(14);
-        r.data(13) = m.data(1)*m.data(10)*m.data(12) - m.data(2)*m.data( 9)*m.data(12) + m.data(2)*m.data(8)*m.data(13) - m.data(0)*m.data(10)*m.data(13) - m.data(1)*m.data(8)*m.data(14) + m.data(0)*m.data( 9)*m.data(14);
-        r.data(14) = m.data(2)*m.data( 5)*m.data(12) - m.data(1)*m.data( 6)*m.data(12) - m.data(2)*m.data(4)*m.data(13) + m.data(0)*m.data( 6)*m.data(13) + m.data(1)*m.data(4)*m.data(14) - m.data(0)*m.data( 5)*m.data(14);
-        r.data(15) = m.data(1)*m.data( 6)*m.data( 8) - m.data(2)*m.data( 5)*m.data( 8) + m.data(2)*m.data(4)*m.data( 9) - m.data(0)*m.data( 6)*m.data( 9) - m.data(1)*m.data(4)*m.data(10) + m.data(0)*m.data( 5)*m.data(10);
-        r.scale(1.0f / m.determinant());
-        return r;
-    }
-
-    inline Matrix isometryInverse(Matrix::Arg m)
-    {
-        Matrix r(identity);
-
-        // transposed 3x3 upper left matrix
-        for (int i = 0; i < 3; i++)
-        {
-            for (int j = 0; j < 3; j++)
-            {
-                r(i, j) = m(j, i);
-            }
-        }
-
-        // translate by the negative offsets
-        r.translate(-Vector3(m.data(12), m.data(13), m.data(14)));
-
-        return r;
-    }
-
-    // Transform the given 3d point with the given matrix.
-    inline Vector3 transformPoint(Matrix::Arg m, Vector3::Arg p)
-    {
-        return Vector3(
-            p.x * m(0,0) + p.y * m(0,1) + p.z * m(0,2) + m(0,3),
-            p.x * m(1,0) + p.y * m(1,1) + p.z * m(1,2) + m(1,3),
-            p.x * m(2,0) + p.y * m(2,1) + p.z * m(2,2) + m(2,3));
-    }
-
-    // Transform the given 3d vector with the given matrix.
-    inline Vector3 transformVector(Matrix::Arg m, Vector3::Arg p)
-    {
-        return Vector3(
-            p.x * m(0,0) + p.y * m(0,1) + p.z * m(0,2),
-            p.x * m(1,0) + p.y * m(1,1) + p.z * m(1,2),
-            p.x * m(2,0) + p.y * m(2,1) + p.z * m(2,2));
-    }
-
-    // Transform the given 4d vector with the given matrix.
-    inline Vector4 transform(Matrix::Arg m, Vector4::Arg p)
-    {
-        return Vector4(
-            p.x * m(0,0) + p.y * m(0,1) + p.z * m(0,2) + p.w * m(0,3),
-            p.x * m(1,0) + p.y * m(1,1) + p.z * m(1,2) + p.w * m(1,3),
-            p.x * m(2,0) + p.y * m(2,1) + p.z * m(2,2) + p.w * m(2,3),
-            p.x * m(3,0) + p.y * m(3,1) + p.z * m(3,2) + p.w * m(3,3));
-    }
-
-    inline Matrix mul(Matrix::Arg a, Matrix::Arg b)
-    {
-        // @@ Is this the right order? mul(a, b) = b * a
-        Matrix m = a;
-        m.apply(b);
-        return m;
-    }
-
-    inline void Matrix::operator+=(const Matrix & m)
-    {
-        for(int i = 0; i < 16; i++) {
-            m_data[i] += m.m_data[i];
-        }
-    }
-
-    inline void Matrix::operator-=(const Matrix & m)
-    {
-        for(int i = 0; i < 16; i++) {
-            m_data[i] -= m.m_data[i];
-        }
-    }
-
-    inline Matrix operator+(const Matrix & a, const Matrix & b)
-    {
-        Matrix m = a;
-        m += b;
-        return m;
-    }
-
-    inline Matrix operator-(const Matrix & a, const Matrix & b)
-    {
-        Matrix m = a;
-        m -= b;
-        return m;
-    }
-
-
-} // nv namespace
-
-
-#if 0 // old code.
-/** @name Special matrices. */
-//@{
-/** Generate a translation matrix. */
-void TranslationMatrix(const Vec3 & v) {
-    data[0] = 1; data[1] = 0; data[2] = 0; data[3] = 0;
-    data[4] = 0; data[5] = 1; data[6] = 0; data[7] = 0;
-    data[8] = 0; data[9] = 0; data[10] = 1; data[11] = 0;
-    data[12] = v.x; data[13] = v.y; data[14] = v.z; data[15] = 1;
-}
-
-/** Rotate theta degrees around v. */
-void RotationMatrix( float theta, float v0, float v1, float v2 ) {
-    float cost = cos(theta);
-    float sint = sin(theta);
-
-    if( 1 == v0 && 0 == v1 && 0 == v2 ) {
-        data[0] = 1.0f;	data[1] = 0.0f;	data[2] = 0.0f;	data[3] = 0.0f;
-        data[4] = 0.0f;	data[5] = cost;	data[6] = -sint;data[7] = 0.0f;
-        data[8] = 0.0f;	data[9] = sint;	data[10] = cost;data[11] = 0.0f;
-        data[12] = 0.0f;data[13] = 0.0f;data[14] = 0.0f;data[15] = 1.0f;
-    }
-    else if( 0 == v0  && 1 == v1 && 0 == v2 ) {
-        data[0] = cost;	data[1] = 0.0f;	data[2] = sint;	data[3] = 0.0f;
-        data[4] = 0.0f;	data[5] = 1.0f;	data[6] = 0.0f;	data[7] = 0.0f;
-        data[8] = -sint;data[9] = 0.0f;data[10] = cost;	data[11] = 0.0f;
-        data[12] = 0.0f;data[13] = 0.0f;data[14] = 0.0f;data[15] = 1.0f;
-    }
-    else if( 0 == v0 && 0 == v1 && 1 == v2 ) {
-        data[0] = cost;	data[1] = -sint;data[2] = 0.0f;	data[3] = 0.0f;
-        data[4] = sint; data[5] = cost;	data[6] = 0.0f;	data[7] = 0.0f;
-        data[8] = 0.0f;	data[9] = 0.0f;	data[10] = 1.0f;data[11] = 0.0f;
-        data[12] = 0.0f;data[13] = 0.0f;data[14] = 0.0f;data[15] = 1.0f;
-    } 
-    else {
-        //we need scale a,b,c to unit length.
-        float a2, b2, c2;
-        a2 = v0 * v0;
-        b2 = v1 * v1;
-        c2 = v2 * v2;
-
-        float iscale = 1.0f / sqrtf(a2 + b2 + c2);
-        v0 *= iscale;
-        v1 *= iscale;
-        v2 *= iscale;
-
-        float abm, acm, bcm;
-        float mcos, asin, bsin, csin;
-        mcos = 1.0f - cost;
-        abm = v0 * v1 * mcos;
-        acm = v0 * v2 * mcos;
-        bcm = v1 * v2 * mcos;
-        asin = v0 * sint;
-        bsin = v1 * sint;
-        csin = v2 * sint;
-        data[0] = a2 * mcos + cost;
-        data[1] = abm - csin;
-        data[2] = acm + bsin;
-        data[3] = abm + csin;
-        data[4] = 0.0f;
-        data[5] = b2 * mcos + cost;
-        data[6] = bcm - asin;
-        data[7] = acm - bsin;
-        data[8] = 0.0f;
-        data[9] = bcm + asin;
-        data[10] = c2 * mcos + cost;
-        data[11] = 0.0f;
-        data[12] = 0.0f;
-        data[13] = 0.0f;
-        data[14] = 0.0f;
-        data[15] = 1.0f;
-    }
-}
-
-/*
-void SkewMatrix(float angle, const Vec3 & v1, const Vec3 & v2) {
-v1.Normalize();
-v2.Normalize();
-
-Vec3 v3;
-v3.Cross(v1, v2);
-v3.Normalize();
-
-// Get skew factor.
-float costheta = Vec3DotProduct(v1, v2);
-float sintheta = Real.Sqrt(1 - costheta * costheta);
-float skew = tan(Trig.DegreesToRadians(angle) + acos(sintheta)) * sintheta - costheta;
-
-// Build orthonormal matrix.
-v1 = FXVector3.Cross(v3, v2);
-v1.Normalize();
-
-Matrix R = Matrix::Identity;
-R[0, 0] = v3.X;	// Not sure this is in the correct order...
-R[1, 0] = v3.Y;
-R[2, 0] = v3.Z;
-R[0, 1] = v1.X;
-R[1, 1] = v1.Y;
-R[2, 1] = v1.Z;
-R[0, 2] = v2.X;
-R[1, 2] = v2.Y;
-R[2, 2] = v2.Z;
-
-// Build skew matrix.
-Matrix S = Matrix::Identity;
-S[2, 1] = -skew;
-
-// Return skew transform.
-return R * S * R.Transpose;	// Not sure this is in the correct order...
-}
-*/
-
-/**
-* Generate rotation matrix for the euler angles. This is the same as computing
-* 3 rotation matrices and multiplying them together in our custom order.
-*
-* @todo Have to recompute this code for our new convention.
-**/
-void RotationMatrix( float yaw, float pitch, float roll ) {
-    float sy = sin(yaw+ToRadian(90));
-    float cy = cos(yaw+ToRadian(90));
-    float sp = sin(pitch-ToRadian(90));
-    float cp = cos(pitch-ToRadian(90));
-    float sr = sin(roll);
-    float cr = cos(roll);
-
-    data[0] = cr*cy + sr*sp*sy;
-    data[1] = cp*sy;
-    data[2] = -sr*cy + cr*sp*sy;
-    data[3] = 0;
-
-    data[4] = -cr*sy + sr*sp*cy;
-    data[5] = cp*cy;
-    data[6] = sr*sy + cr*sp*cy;
-    data[7] = 0;
-
-    data[8] = sr*cp;
-    data[9] = -sp;
-    data[10] = cr*cp;
-    data[11] = 0;
-
-    data[12] = 0;
-    data[13] = 0;
-    data[14] = 0;
-    data[15] = 1;
-}
-
-/** Create a frustum matrix with the far plane at the infinity. */
-void Frustum( float xmin, float xmax, float ymin, float ymax, float zNear, float zFar ) {
-    float one_deltax, one_deltay, one_deltaz, doubleznear;
-
-    doubleznear = 2.0f * zNear;
-    one_deltax = 1.0f / (xmax - xmin);
-    one_deltay = 1.0f / (ymax - ymin);
-    one_deltaz = 1.0f / (zFar - zNear);
-
-    data[0] = (float)(doubleznear * one_deltax);
-    data[1] = 0.0f;
-    data[2] = 0.0f;
-    data[3] = 0.0f;
-    data[4] = 0.0f;
-    data[5] = (float)(doubleznear * one_deltay);
-    data[6] = 0.f;
-    data[7] = 0.f;
-    data[8] = (float)((xmax + xmin) * one_deltax);
-    data[9] = (float)((ymax + ymin) * one_deltay);
-    data[10] = (float)(-(zFar + zNear) * one_deltaz);
-    data[11] = -1.f;
-    data[12] = 0.f;
-    data[13] = 0.f;
-    data[14] = (float)(-(zFar * doubleznear) * one_deltaz);
-    data[15] = 0.f;
-}
-
-/** Create a frustum matrix with the far plane at the infinity. */
-void FrustumInf( float xmin, float xmax, float ymin, float ymax, float zNear ) {
-    float one_deltax, one_deltay, doubleznear, nudge;
-
-    doubleznear = 2.0f * zNear;
-    one_deltax = 1.0f / (xmax - xmin);
-    one_deltay = 1.0f / (ymax - ymin);
-    nudge = 1.0; // 0.999;
-
-    data[0] = doubleznear * one_deltax;
-    data[1] = 0.0f;
-    data[2] = 0.0f;
-    data[3] = 0.0f;
-
-    data[4] = 0.0f;
-    data[5] = doubleznear * one_deltay;
-    data[6] = 0.f;
-    data[7] = 0.f;
-
-    data[8] = (xmax + xmin) * one_deltax;
-    data[9] = (ymax + ymin) * one_deltay;
-    data[10] = -1.0f * nudge;
-    data[11] = -1.0f;
-
-    data[12] = 0.f;
-    data[13] = 0.f;
-    data[14] = -doubleznear * nudge;
-    data[15] = 0.f;
-}
-
-/** Create an inverse frustum matrix with the far plane at the infinity. */
-void FrustumInfInv( float left, float right, float bottom, float top, float zNear ) {
-    // this matrix is wrong (not tested floatly) I think it should be transposed.
-    data[0] = (right - left) / (2 * zNear);
-    data[1] = 0;
-    data[2] = 0;
-    data[3] = (right + left) / (2 * zNear);
-    data[4] = 0;
-    data[5] = (top - bottom) / (2 * zNear);
-    data[6] = 0;
-    data[7] = (top + bottom) / (2 * zNear);
-    data[8] = 0;
-    data[9] = 0;
-    data[10] = 0;
-    data[11] = -1;
-    data[12] = 0;
-    data[13] = 0;
-    data[14] = -1 / (2 * zNear);
-    data[15] = 1 / (2 * zNear);
-}
-
-/** Create an homogeneous projection matrix. */
-void Perspective( float fov, float aspect, float zNear, float zFar ) {
-    float xmin, xmax, ymin, ymax;
-
-    xmax = zNear * tan( fov/2 );
-    xmin = -xmax;
-
-    ymax = xmax / aspect;
-    ymin = -ymax;
-
-    Frustum(xmin, xmax, ymin, ymax, zNear, zFar);
-}
-
-/** Create a projection matrix with the far plane at the infinity. */
-void PerspectiveInf( float fov, float aspect, float zNear ) {
-    float x = zNear * tan( fov/2 );
-    float y = x / aspect;
-    FrustumInf( -x, x, -y, y, zNear );
-}
-
-/** Create an inverse projection matrix with far plane at the infinity. */
-void PerspectiveInfInv( float fov, float aspect, float zNear ) {
-    float x = zNear * tan( fov/2 );
-    float y = x / aspect;
-    FrustumInfInv( -x, x, -y, y, zNear );
-}
-
-/** Build bone matrix from quatertion and offset. */
-void BoneMatrix(const Quat & q, const Vec3 & offset) {
-    float x2, y2, z2, xx, xy, xz, yy, yz, zz, wx, wy, wz;
-
-    // calculate coefficients
-    x2 = q.x + q.x;
-    y2 = q.y + q.y;
-    z2 = q.z + q.z;
-
-    xx = q.x * x2;   xy = q.x * y2;   xz = q.x * z2;
-    yy = q.y * y2;   yz = q.y * z2;   zz = q.z * z2;
-    wx = q.w * x2;   wy = q.w * y2;   wz = q.w * z2;
-
-    data[0] = 1.0f - (yy + zz); 	
-    data[1] = xy - wz;
-    data[2] = xz + wy;		
-    data[3] = 0.0f;
-
-    data[4] = xy + wz;		
-    data[5] = 1.0f - (xx + zz);
-    data[6] = yz - wx;		
-    data[7] = 0.0f;
-
-    data[8] = xz - wy;		
-    data[9] = yz + wx;
-    data[10] = 1.0f - (xx + yy);		
-    data[11] = 0.0f;
-
-    data[12] = offset.x;
-    data[13] = offset.y;
-    data[14] = offset.z;			
-    data[15] = 1.0f;
-}
-
-//@}
-
-
-/** @name Transformations: */
-//@{
-
-/** Apply a general scale. */
-void Scale( float x, float y, float z ) {
-    data[0] *= x;	data[4] *= y;	data[8]  *= z;
-    data[1] *= x;	data[5] *= y;	data[9]  *= z;
-    data[2] *= x;	data[6] *= y;	data[10] *= z;
-    data[3] *= x;	data[7] *= y;	data[11] *= z;
-}
-
-/** Apply a rotation of theta degrees around the axis v*/
-void Rotate( float theta, const Vec3 & v ) {
-    Matrix b;
-    b.RotationMatrix( theta, v[0], v[1], v[2] );
-    Multiply4x3( b );
-}
-
-/** Apply a rotation of theta degrees around the axis v*/
-void Rotate( float theta, float v0, float v1, float v2 ) {
-    Matrix b;
-    b.RotationMatrix( theta, v0, v1, v2 );
-    Multiply4x3( b );
-}
-
-/**
-* Translate the matrix by t. This is the same as multiplying by a
-* translation matrix with the given offset.
-* this = T * this
-*/
-void Translate( const Vec3 &t ) {
-    data[12] = data[0] * t.x + data[4] * t.y + data[8]  * t.z + data[12];
-    data[13] = data[1] * t.x + data[5] * t.y + data[9]  * t.z + data[13];
-    data[14] = data[2] * t.x + data[6] * t.y + data[10] * t.z + data[14];
-    data[15] = data[3] * t.x + data[7] * t.y + data[11] * t.z + data[15];
-}
-
-/** 
-* Translate the matrix by x, y, z. This is the same as multiplying by a 
-* translation matrix with the given offsets.
-*/
-void Translate( float x, float y, float z ) {
-    data[12] = data[0] * x + data[4] * y + data[8]  * z + data[12];
-    data[13] = data[1] * x + data[5] * y + data[9]  * z + data[13];
-    data[14] = data[2] * x + data[6] * y + data[10] * z + data[14];
-    data[15] = data[3] * x + data[7] * y + data[11] * z + data[15];
-}
-
-/** Compute the transposed matrix. */
-void Transpose() {
-    piSwap(data[1], data[4]);
-    piSwap(data[2], data[8]);
-    piSwap(data[6], data[9]);
-    piSwap(data[3], data[12]);
-    piSwap(data[7], data[13]);
-    piSwap(data[11], data[14]);
-}
-
-/** Compute the inverse of a rigid-body/isometry/orthonormal matrix. */
-void IsometryInverse() {
-    // transposed 3x3 upper left matrix
-    piSwap(data[1], data[4]);
-    piSwap(data[2], data[8]);
-    piSwap(data[6], data[9]);
-
-    // translate by the negative offsets
-    Vec3 v(-data[12], -data[13], -data[14]);
-    data[12] = data[13] = data[14] = 0;
-    Translate(v);
-}
-
-/** Compute the inverse of the affine portion of this matrix. */
-void AffineInverse() {
-    data[12] = data[13] = data[14] = 0;
-    Transpose();
-}
-//@}
-
-/** @name Matrix operations: */
-//@{
-
-/** Return the determinant of this matrix. */
-float Determinant() const {
-    return	data[0] * data[5] * data[10] * data[15] + 
-        data[1] * data[6] * data[11] * data[12] +
-        data[2] * data[7] * data[ 8] * data[13] +
-        data[3] * data[4] * data[ 9] * data[14] -
-        data[3] * data[6] * data[ 9] * data[12] -
-        data[2] * data[5] * data[ 8] * data[15] -
-        data[1] * data[4] * data[11] * data[14] -
-        data[0] * data[7] * data[10] * data[12];
-}
-
-
-/** Standard matrix product: this *= B. */
-void Multiply4x4( const Matrix & restrict B ) {
-    Multiply4x4(*this, B);
-}
-
-/** Standard matrix product: this = A * B. this != B*/
-void Multiply4x4( const Matrix & A, const Matrix & restrict B ) {
-    piDebugCheck(this != &B);
-
-    for(int i = 0; i < 4; i++) {
-        const float ai0 = A(i,0), ai1 = A(i,1), ai2 = A(i,2), ai3 = A(i,3);
-        GetElem(i,0) = ai0 * B(0,0) + ai1 * B(1,0) + ai2 * B(2,0) + ai3 * B(3,0);
-        GetElem(i,1) = ai0 * B(0,1) + ai1 * B(1,1) + ai2 * B(2,1) + ai3 * B(3,1);
-        GetElem(i,2) = ai0 * B(0,2) + ai1 * B(1,2) + ai2 * B(2,2) + ai3 * B(3,2);
-        GetElem(i,3) = ai0 * B(0,3) + ai1 * B(1,3) + ai2 * B(2,3) + ai3 * B(3,3);
-    }
-
-    /* Unrolled but does not allow this == A
-    data[0] = A.data[0] * B.data[0] + A.data[4] * B.data[1] + A.data[8] * B.data[2] + A.data[12] * B.data[3];
-    data[1] = A.data[1] * B.data[0] + A.data[5] * B.data[1] + A.data[9] * B.data[2] + A.data[13] * B.data[3];
-    data[2] = A.data[2] * B.data[0] + A.data[6] * B.data[1] + A.data[10] * B.data[2] + A.data[14] * B.data[3];
-    data[3] = A.data[3] * B.data[0] + A.data[7] * B.data[1] + A.data[11] * B.data[2] + A.data[15] * B.data[3];
-    data[4] = A.data[0] * B.data[4] + A.data[4] * B.data[5] + A.data[8] * B.data[6] + A.data[12] * B.data[7];
-    data[5] = A.data[1] * B.data[4] + A.data[5] * B.data[5] + A.data[9] * B.data[6] + A.data[13] * B.data[7];
-    data[6] = A.data[2] * B.data[4] + A.data[6] * B.data[5] + A.data[10] * B.data[6] + A.data[14] * B.data[7];
-    data[7] = A.data[3] * B.data[4] + A.data[7] * B.data[5] + A.data[11] * B.data[6] + A.data[15] * B.data[7];
-    data[8] = A.data[0] * B.data[8] + A.data[4] * B.data[9] + A.data[8] * B.data[10] + A.data[12] * B.data[11];
-    data[9] = A.data[1] * B.data[8] + A.data[5] * B.data[9] + A.data[9] * B.data[10] + A.data[13] * B.data[11];
-    data[10]= A.data[2] * B.data[8] + A.data[6] * B.data[9] + A.data[10] * B.data[10] + A.data[14] * B.data[11];
-    data[11]= A.data[3] * B.data[8] + A.data[7] * B.data[9] + A.data[11] * B.data[10] + A.data[15] * B.data[11];
-    data[12]= A.data[0] * B.data[12] + A.data[4] * B.data[13] + A.data[8] * B.data[14] + A.data[12] * B.data[15];
-    data[13]= A.data[1] * B.data[12] + A.data[5] * B.data[13] + A.data[9] * B.data[14] + A.data[13] * B.data[15];
-    data[14]= A.data[2] * B.data[12] + A.data[6] * B.data[13] + A.data[10] * B.data[14] + A.data[14] * B.data[15];
-    data[15]= A.data[3] * B.data[12] + A.data[7] * B.data[13] + A.data[11] * B.data[14] + A.data[15] * B.data[15];
-    */
-}
-
-/** Standard matrix product: this *= B. */
-void Multiply4x3( const Matrix & restrict B ) {
-    Multiply4x3(*this, B);
-}
-
-/** Standard product of matrices, where the last row is [0 0 0 1]. */
-void Multiply4x3( const Matrix & A, const Matrix & restrict B ) {
-    piDebugCheck(this != &B);
-
-    for(int i = 0; i < 3; i++) {
-        const float ai0 = A(i,0), ai1 = A(i,1), ai2 = A(i,2), ai3 = A(i,3);
-        GetElem(i,0) = ai0 * B(0,0) + ai1 * B(1,0) + ai2 * B(2,0) + ai3 * B(3,0);
-        GetElem(i,1) = ai0 * B(0,1) + ai1 * B(1,1) + ai2 * B(2,1) + ai3 * B(3,1);
-        GetElem(i,2) = ai0 * B(0,2) + ai1 * B(1,2) + ai2 * B(2,2) + ai3 * B(3,2);
-        GetElem(i,3) = ai0 * B(0,3) + ai1 * B(1,3) + ai2 * B(2,3) + ai3 * B(3,3);
-    }
-    data[3] = 0.0f; data[7] = 0.0f; data[11] = 0.0f; data[15] = 1.0f;
-
-    /* Unrolled but does not allow this == A
-    data[0] = a.data[0] * b.data[0] + a.data[4] * b.data[1] + a.data[8] * b.data[2] + a.data[12] * b.data[3];
-    data[1] = a.data[1] * b.data[0] + a.data[5] * b.data[1] + a.data[9] * b.data[2] + a.data[13] * b.data[3];
-    data[2] = a.data[2] * b.data[0] + a.data[6] * b.data[1] + a.data[10] * b.data[2] + a.data[14] * b.data[3];
-    data[3] = 0.0f;
-    data[4] = a.data[0] * b.data[4] + a.data[4] * b.data[5] + a.data[8] * b.data[6] + a.data[12] * b.data[7];
-    data[5] = a.data[1] * b.data[4] + a.data[5] * b.data[5] + a.data[9] * b.data[6] + a.data[13] * b.data[7];
-    data[6] = a.data[2] * b.data[4] + a.data[6] * b.data[5] + a.data[10] * b.data[6] + a.data[14] * b.data[7];
-    data[7] = 0.0f;
-    data[8] = a.data[0] * b.data[8] + a.data[4] * b.data[9] + a.data[8] * b.data[10] + a.data[12] * b.data[11];
-    data[9] = a.data[1] * b.data[8] + a.data[5] * b.data[9] + a.data[9] * b.data[10] + a.data[13] * b.data[11];
-    data[10]= a.data[2] * b.data[8] + a.data[6] * b.data[9] + a.data[10] * b.data[10] + a.data[14] * b.data[11];
-    data[11]= 0.0f;
-    data[12]= a.data[0] * b.data[12] + a.data[4] * b.data[13] + a.data[8] * b.data[14] + a.data[12] * b.data[15];
-    data[13]= a.data[1] * b.data[12] + a.data[5] * b.data[13] + a.data[9] * b.data[14] + a.data[13] * b.data[15];
-    data[14]= a.data[2] * b.data[12] + a.data[6] * b.data[13] + a.data[10] * b.data[14] + a.data[14] * b.data[15];
-    data[15]= 1.0f;
-    */
-}
-//@}
-
-
-/** @name Vector operations: */
-//@{
-
-/** Transform 3d vector (w=0). */
-void TransformVec3(const Vec3 & restrict orig, Vec3 * restrict dest) const {
-    piDebugCheck(&orig != dest);
-    dest->x = orig.x * data[0] + orig.y * data[4] + orig.z * data[8];
-    dest->y = orig.x * data[1] + orig.y * data[5] + orig.z * data[9];
-    dest->z = orig.x * data[2] + orig.y * data[6] + orig.z * data[10];
-}
-/** Transform 3d vector by the transpose (w=0). */
-void TransformVec3T(const Vec3 & restrict orig, Vec3 * restrict dest) const {
-    piDebugCheck(&orig != dest);
-    dest->x = orig.x * data[0] + orig.y * data[1] + orig.z * data[2];
-    dest->y = orig.x * data[4] + orig.y * data[5] + orig.z * data[6];
-    dest->z = orig.x * data[8] + orig.y * data[9] + orig.z * data[10];
-}
-
-/** Transform a 3d homogeneous vector, where the fourth coordinate is assumed to be 1. */
-void TransformPoint(const Vec3 & restrict orig, Vec3 * restrict dest) const {
-    piDebugCheck(&orig != dest);
-    dest->x = orig.x * data[0] + orig.y * data[4] + orig.z * data[8] + data[12];
-    dest->y = orig.x * data[1] + orig.y * data[5] + orig.z * data[9] + data[13];
-    dest->z = orig.x * data[2] + orig.y * data[6] + orig.z * data[10] + data[14];
-}
-
-/** Transform a point, normalize it, and return w. */
-float TransformPointAndNormalize(const Vec3 & restrict orig, Vec3 * restrict dest) const {
-    piDebugCheck(&orig != dest);
-    float w;
-    dest->x = orig.x * data[0] + orig.y * data[4] + orig.z * data[8] + data[12];
-    dest->y = orig.x * data[1] + orig.y * data[5] + orig.z * data[9] + data[13];
-    dest->z = orig.x * data[2] + orig.y * data[6] + orig.z * data[10] + data[14];
-    w = 1 / (orig.x * data[3] + orig.y * data[7] + orig.z * data[11] + data[15]);
-    *dest *= w;
-    return w;
-}
-
-/** Transform a point and return w. */
-float TransformPointReturnW(const Vec3 & restrict orig, Vec3 * restrict dest) const {
-    piDebugCheck(&orig != dest);
-    dest->x = orig.x * data[0] + orig.y * data[4] + orig.z * data[8] + data[12];
-    dest->y = orig.x * data[1] + orig.y * data[5] + orig.z * data[9] + data[13];
-    dest->z = orig.x * data[2] + orig.y * data[6] + orig.z * data[10] + data[14];
-    return orig.x * data[3] + orig.y * data[7] + orig.z * data[11] + data[15];
-}
-
-/** Transform a normalized 3d point by a 4d matrix and return the resulting 4d vector. */
-void TransformVec4(const Vec3 & orig, Vec4 * dest) const {
-    dest->x = orig.x * data[0] + orig.y * data[4] + orig.z * data[8] + data[12];
-    dest->y = orig.x * data[1] + orig.y * data[5] + orig.z * data[9] + data[13];
-    dest->z = orig.x * data[2] + orig.y * data[6] + orig.z * data[10] + data[14];
-    dest->w = orig.x * data[3] + orig.y * data[7] + orig.z * data[11] + data[15];
-}
-//@}
-
-/** @name Matrix analysis. */
-//@{
-
-/** Get the ZYZ euler angles from the matrix. Assumes the matrix is orthonormal. */
-void GetEulerAnglesZYZ(float * s, float * t, float * r) const {
-    if( GetElem(2,2) < 1.0f ) {
-        if( GetElem(2,2) > -1.0f ) {
-            // 	cs*ct*cr-ss*sr 		-ss*ct*cr-cs*sr		st*cr
-            //	cs*ct*sr+ss*cr		-ss*ct*sr+cs*cr		st*sr
-            //	-cs*st				ss*st				ct
-            *s = atan2(GetElem(1,2), -GetElem(0,2));
-            *t = acos(GetElem(2,2));
-            *r = atan2(GetElem(2,1), GetElem(2,0));		
-        }
-        else {
-            // 	-c(s-r)	 	s(s-r)		0
-            //	s(s-r)		c(s-r)		0
-            //	0			0			-1
-            *s = atan2(GetElem(0, 1), -GetElem(0, 0)); // = s-r
-            *t = PI;
-            *r = 0;
-        }
-    }
-    else {
-        // 	c(s+r)		-s(s+r)		0
-        //	s(s+r)		c(s+r)		0
-        //	0			0			1
-        *s = atan2(GetElem(0, 1), GetElem(0, 0)); // = s+r
-        *t = 0;
-        *r = 0;
-    }
-}
-
-//@}
-
-MATHLIB_API friend PiStream & operator<< ( PiStream & s, Matrix & m );
-
-/** Print to debug output. */
-void Print() const {
-    piDebug( "[ %5.2f %5.2f %5.2f %5.2f ]\n", data[0], data[4], data[8], data[12] );
-    piDebug( "[ %5.2f %5.2f %5.2f %5.2f ]\n", data[1], data[5], data[9], data[13] );
-    piDebug( "[ %5.2f %5.2f %5.2f %5.2f ]\n", data[2], data[6], data[10], data[14] );
-    piDebug( "[ %5.2f %5.2f %5.2f %5.2f ]\n", data[3], data[7], data[11], data[15] );
-}
-
-
-public:
-
-    float data[16];
-
-};
-#endif
-
-
-#endif // NV_MATH_MATRIX_INL
diff --git a/thirdparty/thekla_atlas/nvmath/Morton.h b/thirdparty/thekla_atlas/nvmath/Morton.h
deleted file mode 100644
index 10e0d8152a..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Morton.h
+++ /dev/null
@@ -1,83 +0,0 @@
-
-// Code from ryg:
-// http://fgiesen.wordpress.com/2009/12/13/decoding-morton-codes/
-
-
-// "Insert" a 0 bit after each of the 16 low bits of x
-inline uint32 part1By1(uint32 x)
-{
-	x &= 0x0000ffff;                  // x = ---- ---- ---- ---- fedc ba98 7654 3210
-	x = (x ^ (x <<  8)) & 0x00ff00ff; // x = ---- ---- fedc ba98 ---- ---- 7654 3210
-	x = (x ^ (x <<  4)) & 0x0f0f0f0f; // x = ---- fedc ---- ba98 ---- 7654 ---- 3210
-	x = (x ^ (x <<  2)) & 0x33333333; // x = --fe --dc --ba --98 --76 --54 --32 --10
-	x = (x ^ (x <<  1)) & 0x55555555; // x = -f-e -d-c -b-a -9-8 -7-6 -5-4 -3-2 -1-0
-	return x;
-}
-
-// "Insert" two 0 bits after each of the 10 low bits of x
-inline uint32 part1By2(uint32 x)
-{
-	x &= 0x000003ff;                  // x = ---- ---- ---- ---- ---- --98 7654 3210
-	x = (x ^ (x << 16)) & 0xff0000ff; // x = ---- --98 ---- ---- ---- ---- 7654 3210
-	x = (x ^ (x <<  8)) & 0x0300f00f; // x = ---- --98 ---- ---- 7654 ---- ---- 3210
-	x = (x ^ (x <<  4)) & 0x030c30c3; // x = ---- --98 ---- 76-- --54 ---- 32-- --10
-	x = (x ^ (x <<  2)) & 0x09249249; // x = ---- 9--8 --7- -6-- 5--4 --3- -2-- 1--0
-	return x;
-}
-
-inline uint32 encodeMorton2(uint32 x, uint32 y)
-{
-	return (part1By1(y) << 1) + part1By1(x);
-}
-
-inline uint32 encodeMorton3(uint32 x, uint32 y, uint32 z)
-{
-	return (part1By2(z) << 2) + (part1By2(y) << 1) + part1By2(x);
-}
-
-// Inverse of part1By1 - "delete" all odd-indexed bits
-inline uint32 compact1By1(uint32 x)
-{
-	x &= 0x55555555;                  // x = -f-e -d-c -b-a -9-8 -7-6 -5-4 -3-2 -1-0
-	x = (x ^ (x >>  1)) & 0x33333333; // x = --fe --dc --ba --98 --76 --54 --32 --10
-	x = (x ^ (x >>  2)) & 0x0f0f0f0f; // x = ---- fedc ---- ba98 ---- 7654 ---- 3210
-	x = (x ^ (x >>  4)) & 0x00ff00ff; // x = ---- ---- fedc ba98 ---- ---- 7654 3210
-	x = (x ^ (x >>  8)) & 0x0000ffff; // x = ---- ---- ---- ---- fedc ba98 7654 3210
-	return x;
-}
-
-// Inverse of part1By2 - "delete" all bits not at positions divisible by 3
-inline uint32 compact1By2(uint32 x)
-{
-	x &= 0x09249249;                  // x = ---- 9--8 --7- -6-- 5--4 --3- -2-- 1--0
-	x = (x ^ (x >>  2)) & 0x030c30c3; // x = ---- --98 ---- 76-- --54 ---- 32-- --10
-	x = (x ^ (x >>  4)) & 0x0300f00f; // x = ---- --98 ---- ---- 7654 ---- ---- 3210
-	x = (x ^ (x >>  8)) & 0xff0000ff; // x = ---- --98 ---- ---- ---- ---- 7654 3210
-	x = (x ^ (x >> 16)) & 0x000003ff; // x = ---- ---- ---- ---- ---- --98 7654 3210
-	return x;
-}
-
-inline uint32 decodeMorton2X(uint32 code)
-{
-	return compact1By1(code >> 0);
-}
-
-inline uint32 decodeMorton2Y(uint32 code)
-{
-	return compact1By1(code >> 1);
-}
-
-inline uint32 decodeMorton3X(uint32 code)
-{
-	return compact1By2(code >> 0);
-}
-
-inline uint32 decodeMorton3Y(uint32 code)
-{
-	return compact1By2(code >> 1);
-}
-
-inline uint32 decodeMorton3Z(uint32 code)
-{
-	return compact1By2(code >> 2);
-}
\ No newline at end of file
diff --git a/thirdparty/thekla_atlas/nvmath/Plane.cpp b/thirdparty/thekla_atlas/nvmath/Plane.cpp
deleted file mode 100644
index 8b54f829ad..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Plane.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "Plane.h"
-#include "Plane.inl"
-#include "Matrix.inl"
-
-namespace nv
-{
-    Plane transformPlane(const Matrix & m, const Plane & p)
-    {
-        Vector3 newVec = transformVector(m, p.vector());
-
-        Vector3 ptInPlane = p.offset() * p.vector();
-        ptInPlane = transformPoint(m, ptInPlane);
-
-        return Plane(newVec, ptInPlane);
-    }
-
-    Vector3 planeIntersection(const Plane & a, const Plane & b, const Plane & c)
-    {
-        return dot(a.vector(), cross(b.vector(), c.vector())) * (
-            a.offset() * cross(b.vector(), c.vector()) + 
-            c.offset() * cross(a.vector(), b.vector()) +
-            b.offset() * cross(c.vector(), a.vector()));
-    }
-
-} // nv namespace
diff --git a/thirdparty/thekla_atlas/nvmath/Plane.h b/thirdparty/thekla_atlas/nvmath/Plane.h
deleted file mode 100644
index dc468b28e2..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Plane.h
+++ /dev/null
@@ -1,42 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_PLANE_H
-#define NV_MATH_PLANE_H
-
-#include "nvmath.h"
-#include "Vector.h"
-
-namespace nv
-{
-    class Matrix;
-
-    class NVMATH_CLASS Plane
-    {
-    public:
-        Plane();
-        Plane(float x, float y, float z, float w);
-        Plane(const Vector4 & v);
-        Plane(const Vector3 & v, float d);
-        Plane(const Vector3 & normal, const Vector3 & point);
-        Plane(const Vector3 & v0, const Vector3 & v1, const Vector3 & v2);
-
-        const Plane & operator=(const Plane & v);
-
-        Vector3 vector() const;
-        float offset() const;
-        Vector3 normal() const;
-
-        void operator*=(float s);
-
-        Vector4 v;
-    };
-
-    Plane transformPlane(const Matrix &, const Plane &);
-
-    Vector3 planeIntersection(const Plane & a, const Plane & b, const Plane & c);
-
-
-} // nv namespace
-
-#endif // NV_MATH_PLANE_H
diff --git a/thirdparty/thekla_atlas/nvmath/Plane.inl b/thirdparty/thekla_atlas/nvmath/Plane.inl
deleted file mode 100644
index 2277e38cd5..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Plane.inl
+++ /dev/null
@@ -1,50 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_PLANE_INL
-#define NV_MATH_PLANE_INL
-
-#include "Plane.h"
-#include "Vector.inl"
-
-namespace nv
-{
-    inline Plane::Plane() {}
-    inline Plane::Plane(float x, float y, float z, float w) : v(x, y, z, w) {}
-    inline Plane::Plane(const Vector4 & v) : v(v) {}
-    inline Plane::Plane(const Vector3 & v, float d) : v(v, d) {}
-    inline Plane::Plane(const Vector3 & normal, const Vector3 & point) : v(normal, -dot(normal, point)) {}
-    inline Plane::Plane(const Vector3 & v0, const Vector3 & v1, const Vector3 & v2) {
-        Vector3 n = cross(v1-v0, v2-v0);
-        float d = -dot(n, v0);
-        v = Vector4(n, d);
-    }
-
-    inline const Plane & Plane::operator=(const Plane & p) { v = p.v; return *this; }
-
-    inline Vector3 Plane::vector() const { return v.xyz(); }
-    inline float Plane::offset() const { return v.w; }
-    inline Vector3 Plane::normal() const { return normalize(vector(), 0.0f); }
-
-    // Normalize plane.
-    inline Plane normalize(const Plane & plane, float epsilon = NV_EPSILON)
-    {
-        const float len = length(plane.vector());
-        const float inv = isZero(len, epsilon) ? 0 : 1.0f / len;
-        return Plane(plane.v * inv);
-    }
-
-    // Get the signed distance from the given point to this plane.
-    inline float distance(const Plane & plane, const Vector3 & point)
-    {
-        return dot(plane.vector(), point) + plane.offset();
-    }
-
-    inline void Plane::operator*=(float s)
-    {
-        v *= s;
-    }
-
-} // nv namespace
-
-#endif // NV_MATH_PLANE_H
diff --git a/thirdparty/thekla_atlas/nvmath/ProximityGrid.cpp b/thirdparty/thekla_atlas/nvmath/ProximityGrid.cpp
deleted file mode 100644
index 3553e48f64..0000000000
--- a/thirdparty/thekla_atlas/nvmath/ProximityGrid.cpp
+++ /dev/null
@@ -1,158 +0,0 @@
-#include "ProximityGrid.h"
-
-#include "Box.inl"
-#include "Morton.h"
-
-
-using namespace nv;
-
-ProximityGrid::ProximityGrid() {
-}
-
-void ProximityGrid::reset() {
-    cellArray.clear();
-}
-
-void ProximityGrid::init(const Array<Vector3> & pointArray) {
-
-	// Compute bounding box.
-    Box box;
-	box.clearBounds();
-	
-    const uint count = pointArray.count();
-
-    for (uint i = 0; i < count; i++) {
-		box.addPointToBounds(pointArray[i]);
-	}
-
-    init(box, count);
-
-	// Insert all points.
-	for (uint i = 0; i < count; i++) {
-        add(pointArray[i], i);
-    }
-}
-
-
-void ProximityGrid::init(const Box & box, uint count) {
-    reset();
- 
-    // Determine grid size.
-    float cellWidth;
-
-    Vector3 diagonal = box.extents() * 2.f;
-    float volume = box.volume();
-
-    if (equal(volume, 0)) {
-        // Degenerate box, treat like a quad.
-        Vector2 quad;
-        if (diagonal.x < diagonal.y && diagonal.x < diagonal.z) {
-            quad.x = diagonal.y;
-            quad.y = diagonal.z;
-        }
-        else if (diagonal.y < diagonal.x && diagonal.y < diagonal.z) {
-            quad.x = diagonal.x;
-            quad.y = diagonal.z;
-        }
-        else {
-            quad.x = diagonal.x;
-            quad.y = diagonal.y;
-        }
-
-        float cellArea = quad.x * quad.y / count;
-        cellWidth = sqrtf(cellArea); // pow(cellArea, 1.0f / 2.0f);
-    }
-    else {
-        // Ideally we want one cell per point.
-        float cellVolume = volume / count;
-        cellWidth = pow(cellVolume, 1.0f / 3.0f);
-    }
-
-    nvDebugCheck(cellWidth != 0);
-
-    sx = max(1, ftoi_ceil(diagonal.x / cellWidth));
-    sy = max(1, ftoi_ceil(diagonal.y / cellWidth));
-    sz = max(1, ftoi_ceil(diagonal.z / cellWidth));
-
-    invCellSize.x = float(sx) / diagonal.x;
-    invCellSize.y = float(sy) / diagonal.y;
-    invCellSize.z = float(sz) / diagonal.z;
-
-	cellArray.resize(sx * sy * sz);
-
-    corner = box.minCorner; // @@ Align grid better?
-}
-
-// Gather all points inside the given sphere.
-// Radius is assumed to be small, so we don't bother culling the cells.
-void ProximityGrid::gather(const Vector3 & position, float radius, Array<uint> & indexArray) {
-    int x0 = index_x(position.x - radius);
-    int x1 = index_x(position.x + radius);
-
-    int y0 = index_y(position.y - radius);
-    int y1 = index_y(position.y + radius);
-
-    int z0 = index_z(position.z - radius);
-    int z1 = index_z(position.z + radius);
-
-    for (int z = z0; z <= z1; z++) {
-        for (int y = y0; y <= y1; y++) {
-            for (int x = x0; x <= x1; x++) {
-                int idx = index(x, y, z);
-                indexArray.append(cellArray[idx].indexArray);
-            }
-        }
-    }
-}
-
-
-uint32 ProximityGrid::mortonCount() const {
-    uint64 s = U64(max3(sx, sy, sz));
-    s = nextPowerOfTwo(s);
-    
-    if (s > 1024) {
-        return U32(s * s * min3(sx, sy, sz));
-    }
-
-    return U32(s * s * s);
-}
-
-int ProximityGrid::mortonIndex(uint32 code) const {
-    uint32 x, y, z;
-
-    uint s = U32(max3(sx, sy, sz));
-    if (s > 1024) {
-        // Use layered two-dimensional morton order.
-        s = nextPowerOfTwo(s);
-        uint layer = code / (s * s);
-        code = code % (s * s);
-
-        uint layer_count = U32(min3(sx, sy, sz));
-        if (sx == layer_count) {
-            x = layer;
-            y = decodeMorton2X(code);
-            z = decodeMorton2Y(code);
-        }
-        else if (sy == layer_count) {
-            x = decodeMorton2Y(code); 
-            y = layer; 
-            z = decodeMorton2X(code);
-        }
-        else /*if (sz == layer_count)*/ {
-            x = decodeMorton2X(code);
-            y = decodeMorton2Y(code);
-            z = layer;
-        }
-    }
-    else {
-        x = decodeMorton3X(code);
-        y = decodeMorton3Y(code);
-        z = decodeMorton3Z(code);
-    }
-
-    if (x >= U32(sx) || y >= U32(sy) || z >= U32(sz)) {
-        return -1;
-    }
-
-    return index(x, y, z);
-}
diff --git a/thirdparty/thekla_atlas/nvmath/ProximityGrid.h b/thirdparty/thekla_atlas/nvmath/ProximityGrid.h
deleted file mode 100644
index a21bb3bd68..0000000000
--- a/thirdparty/thekla_atlas/nvmath/ProximityGrid.h
+++ /dev/null
@@ -1,99 +0,0 @@
-#pragma once
-#ifndef NV_MATH_PROXIMITYGRID_H
-#define NV_MATH_PROXIMITYGRID_H
-
-#include "Vector.h"
-#include "ftoi.h"
-
-#include "nvcore/Array.inl"
-
-
-// A simple, dynamic proximity grid based on Jon's code.
-// Instead of storing pointers here I store indices.
-
-namespace nv {
-
-    class Box;
-
-    struct Cell {
-        Array<uint> indexArray;
-    };
-
-    struct ProximityGrid {
-        ProximityGrid();
-
-        void reset();
-        void init(const Array<Vector3> & pointArray);
-        void init(const Box & box, uint count);
-
-        int index_x(float x) const;
-        int index_y(float y) const;
-        int index_z(float z) const;
-        int index(int x, int y, int z) const;
-        int index(const Vector3 & pos) const;
-        
-        uint32 mortonCount() const;
-        int mortonIndex(uint32 code) const;
-
-        void add(const Vector3 & pos, uint key);
-        bool remove(const Vector3 & pos, uint key);
-
-        void gather(const Vector3 & pos, float radius, Array<uint> & indices);
-
-        Array<Cell> cellArray;
-
-        Vector3 corner;
-        Vector3 invCellSize;
-        int sx, sy, sz;
-    };
-
-    // For morton traversal, do:
-    // for (int code = 0; code < mortonCount(); code++) {
-    //   int idx = mortonIndex(code);
-    //   if (idx < 0) continue;
-    // }
-
-
-
-    inline int ProximityGrid::index_x(float x) const {
-        return clamp(ftoi_floor((x - corner.x) * invCellSize.x),  0, sx-1);
-    }
-
-    inline int ProximityGrid::index_y(float y) const {
-        return clamp(ftoi_floor((y - corner.y) * invCellSize.y),  0, sy-1);
-    }
-
-    inline int ProximityGrid::index_z(float z) const {
-        return clamp(ftoi_floor((z - corner.z) * invCellSize.z),  0, sz-1);
-    }
-
-    inline int ProximityGrid::index(int x, int y, int z) const {
-        nvDebugCheck(x >= 0 && x < sx);
-        nvDebugCheck(y >= 0 && y < sy);
-        nvDebugCheck(z >= 0 && z < sz);
-        int idx = (z * sy + y) * sx + x;
-        nvDebugCheck(idx >= 0 && uint(idx) < cellArray.count());
-        return idx;
-    }
-
-    inline int ProximityGrid::index(const Vector3 & pos) const {
-        int x = index_x(pos.x);
-        int y = index_y(pos.y);
-        int z = index_z(pos.z);
-        return index(x, y, z);
-    }
-
-
-    inline void ProximityGrid::add(const Vector3 & pos, uint key) {
-        uint idx = index(pos);
-        cellArray[idx].indexArray.append(key);
-    }
-
-    inline bool ProximityGrid::remove(const Vector3 & pos, uint key) {
-        uint idx = index(pos);
-        return cellArray[idx].indexArray.remove(key);
-    }
-
-} // nv namespace
-
-#endif // NV_MATH_PROXIMITYGRID_H
diff --git a/thirdparty/thekla_atlas/nvmath/Quaternion.h b/thirdparty/thekla_atlas/nvmath/Quaternion.h
deleted file mode 100644
index dc5219e5e4..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Quaternion.h
+++ /dev/null
@@ -1,213 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_MATH_QUATERNION_H
-#define NV_MATH_QUATERNION_H
-
-#include "nvmath/nvmath.h"
-#include "nvmath/Vector.inl" // @@ Do not include inl files from header files.
-#include "nvmath/Matrix.h"
-
-namespace nv
-{
-
-    class NVMATH_CLASS Quaternion
-    {
-    public:
-        typedef Quaternion const & Arg;
-
-        Quaternion();
-        explicit Quaternion(float f);
-        Quaternion(float x, float y, float z, float w);
-        Quaternion(Vector4::Arg v);
-
-        const Quaternion & operator=(Quaternion::Arg v);
-
-        Vector4 asVector() const;
-
-        union {
-            struct {
-                float x, y, z, w;
-            };
-            float component[4];
-        };
-    };
-
-    inline Quaternion::Quaternion() {}
-    inline Quaternion::Quaternion(float f) : x(f), y(f), z(f), w(f) {}
-    inline Quaternion::Quaternion(float x, float y, float z, float w) : x(x), y(y), z(z), w(w) {}
-    inline Quaternion::Quaternion(Vector4::Arg v) : x(v.x), y(v.y), z(v.z), w(v.w) {}
-
-    // @@ Move all these to Quaternion.inl!
-
-    inline const Quaternion & Quaternion::operator=(Quaternion::Arg v) { 
-        x = v.x;
-        y = v.y;
-        z = v.z;
-        w = v.w;
-        return *this;
-    }
-
-    inline Vector4 Quaternion::asVector() const { return Vector4(x, y, z, w); }
-
-    inline Quaternion mul(Quaternion::Arg a, Quaternion::Arg b)
-    {
-        return Quaternion(
-            + a.x*b.w + a.y*b.z - a.z*b.y + a.w*b.x,
-            - a.x*b.z + a.y*b.w + a.z*b.x + a.w*b.y,
-            + a.x*b.y - a.y*b.x + a.z*b.w + a.w*b.z,
-            - a.x*b.x - a.y*b.y - a.z*b.z + a.w*b.w);
-    }
-
-    inline Quaternion mul(Quaternion::Arg a, Vector3::Arg b)
-    {
-        return Quaternion(
-            + a.y*b.z - a.z*b.y + a.w*b.x,
-            - a.x*b.z           + a.z*b.x + a.w*b.y,
-            + a.x*b.y - a.y*b.x           + a.w*b.z,
-            - a.x*b.x - a.y*b.y - a.z*b.z );
-    }
-
-    inline Quaternion mul(Vector3::Arg a, Quaternion::Arg b)
-    {
-        return Quaternion(
-            + a.x*b.w + a.y*b.z - a.z*b.y,
-            - a.x*b.z + a.y*b.w + a.z*b.x,
-            + a.x*b.y - a.y*b.x + a.z*b.w,
-            - a.x*b.x - a.y*b.y - a.z*b.z);
-    }
-
-    inline Quaternion operator *(Quaternion::Arg a, Quaternion::Arg b)
-    {
-        return mul(a, b);
-    }
-
-    inline Quaternion operator *(Quaternion::Arg a, Vector3::Arg b)
-    {
-        return mul(a, b);
-    }
-
-    inline Quaternion operator *(Vector3::Arg a, Quaternion::Arg b)
-    {
-        return mul(a, b);
-    }
-
-
-    inline Quaternion scale(Quaternion::Arg q, float s)
-    {
-        return scale(q.asVector(), s);
-    }
-    inline Quaternion operator *(Quaternion::Arg q, float s)
-    {
-        return scale(q, s);
-    }
-    inline Quaternion operator *(float s, Quaternion::Arg q)
-    {
-        return scale(q, s);
-    }
-
-    inline Quaternion scale(Quaternion::Arg q, Vector4::Arg s)
-    {
-        return scale(q.asVector(), s);
-    }
-    /*inline Quaternion operator *(Quaternion::Arg q, Vector4::Arg s)
-    {
-    return scale(q, s);
-    }
-    inline Quaternion operator *(Vector4::Arg s, Quaternion::Arg q)
-    {
-    return scale(q, s);
-    }*/
-
-    inline Quaternion conjugate(Quaternion::Arg q)
-    {
-        return scale(q, Vector4(-1, -1, -1, 1));
-    }
-
-    inline float length(Quaternion::Arg q)
-    {
-        return length(q.asVector());
-    }
-
-    inline bool isNormalized(Quaternion::Arg q, float epsilon = NV_NORMAL_EPSILON)
-    {
-        return equal(length(q), 1, epsilon);
-    }
-
-    inline Quaternion normalize(Quaternion::Arg q, float epsilon = NV_EPSILON)
-    {
-        float l = length(q);
-        nvDebugCheck(!isZero(l, epsilon));
-        Quaternion n = scale(q, 1.0f / l);
-        nvDebugCheck(isNormalized(n));
-        return n;
-    }
-
-    inline Quaternion inverse(Quaternion::Arg q)
-    {
-        return conjugate(normalize(q));
-    }
-
-    /// Create a rotation quaternion for @a angle alpha around normal vector @a v.
-    inline Quaternion axisAngle(Vector3::Arg v, float alpha)
-    {
-        float s = sinf(alpha * 0.5f);
-        float c = cosf(alpha * 0.5f);
-        return Quaternion(Vector4(v * s, c));
-    }
-
-    inline Vector3 imag(Quaternion::Arg q)
-    {
-        return q.asVector().xyz();
-    }
-
-    inline float real(Quaternion::Arg q)
-    {
-        return q.w;
-    }
-
-
-    /// Transform vector.
-    inline Vector3 transform(Quaternion::Arg q, Vector3::Arg v)
-    {
-        //Quaternion t = q * v * conjugate(q);
-        //return imag(t);
-
-        // Faster method by Fabian Giesen and others:
-        // http://molecularmusings.wordpress.com/2013/05/24/a-faster-quaternion-vector-multiplication/
-        // http://mollyrocket.com/forums/viewtopic.php?t=833&sid=3a84e00a70ccb046cfc87ac39881a3d0
-        
-        Vector3 t = 2 * cross(imag(q), v);
-        return v + q.w * t + cross(imag(q), t);
-    }
-
-    // @@ Not tested.
-    // From Insomniac's Mike Day:
-    // http://www.insomniacgames.com/converting-a-rotation-matrix-to-a-quaternion/
-    inline Quaternion fromMatrix(const Matrix & m) {
-        if (m(2, 2) < 0) {
-            if (m(0, 0) < m(1,1)) {
-                float t = 1 - m(0, 0) - m(1, 1) - m(2, 2);
-                return Quaternion(t, m(0,1)+m(1,0), m(2,0)+m(0,2), m(1,2)-m(2,1));
-            }
-            else {
-                float t = 1 - m(0, 0) + m(1, 1) - m(2, 2);
-                return Quaternion(t, m(0,1) + m(1,0), m(1,2) + m(2,1), m(2,0) - m(0,2));
-            }
-        }
-        else {
-            if (m(0, 0) < -m(1, 1)) {
-                float t = 1 - m(0, 0) - m(1, 1) + m(2, 2);
-                return Quaternion(t, m(2,0) + m(0,2), m(1,2) + m(2,1), m(0,1) - m(1,0));
-            }
-            else {
-                float t = 1 + m(0, 0) + m(1, 1) + m(2, 2);
-                return Quaternion(t, m(1,2) - m(2,1), m(2,0) - m(0,2), m(0,1) - m(1,0));
-            }
-        }
-    }
-
-
-} // nv namespace
-
-#endif // NV_MATH_QUATERNION_H
diff --git a/thirdparty/thekla_atlas/nvmath/Random.cpp b/thirdparty/thekla_atlas/nvmath/Random.cpp
deleted file mode 100644
index 1a60e7f5e7..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Random.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include <nvmath/Random.h>
-#include <time.h>
-
-using namespace nv;
-
-// Statics
-const uint16 Rand48::a0 = 0xE66D; 
-const uint16 Rand48::a1 = 0xDEEC; 
-const uint16 Rand48::a2 = 0x0005;
-const uint16 Rand48::c0 = 0x000B;
-
-
-/// Get a random seed based on the current time.
-uint Rand::randomSeed()
-{
-    return (uint)time(NULL);
-}
-
-
-void MTRand::initialize( uint32 seed )
-{
-    // Initialize generator state with seed
-    // See Knuth TAOCP Vol 2, 3rd Ed, p.106 for multiplier.
-    // In previous versions, most significant bits (MSBs) of the seed affect
-    // only MSBs of the state array.  Modified 9 Jan 2002 by Makoto Matsumoto.
-    uint32 *s = state;
-    uint32 *r = state;
-    int i = 1;
-    *s++ = seed & 0xffffffffUL;
-    for( ; i < N; ++i )
-    {
-        *s++ = ( 1812433253UL * ( *r ^ (*r >> 30) ) + i ) & 0xffffffffUL;
-        r++;
-    }
-}
-
-
-void MTRand::reload()
-{
-    // Generate N new values in state
-    // Made clearer and faster by Matthew Bellew (matthew.bellew@home.com)
-    uint32 *p = state;
-    int i;
-    for( i = N - M; i--; ++p )
-        *p = twist( p[M], p[0], p[1] );
-    for( i = M; --i; ++p )
-        *p = twist( p[M-N], p[0], p[1] );
-    *p = twist( p[M-N], p[0], state[0] );
-
-    left = N, next = state;
-}
-
diff --git a/thirdparty/thekla_atlas/nvmath/Random.h b/thirdparty/thekla_atlas/nvmath/Random.h
deleted file mode 100644
index 223292706a..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Random.h
+++ /dev/null
@@ -1,376 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_RANDOM_H
-#define NV_MATH_RANDOM_H
-
-#include "nvmath.h"
-#include "nvcore/Utils.h" // nextPowerOfTwo
-
-
-namespace nv
-{
-
-    /// Interface of the random number generators.
-    class Rand
-    {
-    public:
-
-        virtual ~Rand() {}
-
-        enum time_e { Time };
-
-        /// Provide a new seed.
-        virtual void seed( uint s ) { /* empty */ };
-
-        /// Get an integer random number.
-        virtual uint get() = 0;
-
-        /// Get a random number on [0, max] interval.
-        uint getRange( uint max )
-        {
-            if (max == 0) return 0;
-            if (max == NV_UINT32_MAX) return get();
-
-            const uint np2 = nextPowerOfTwo( max+1 ); // @@ This fails if max == NV_UINT32_MAX
-            const uint mask = np2 - 1;
-            uint n;
-            do { n = get() & mask; } while( n > max );
-            return n;
-        }
-
-        /// Random number on [0.0, 1.0] interval.
-        float getFloat()
-        {
-            union
-            {
-                uint32 i;
-                float f;
-            } pun;
-
-            pun.i = 0x3f800000UL | (get() & 0x007fffffUL);
-            return pun.f - 1.0f;
-        }
-
-        float getFloatRange(float min, float max) {
-            return getFloat() * (max - min) + min;
-        }
-
-        /*
-        /// Random number on [0.0, 1.0] interval.
-        double getReal()
-        {
-        return double(get()) * (1.0/4294967295.0); // 2^32-1
-        }
-
-        /// Random number on [0.0, 1.0) interval.
-        double getRealExclusive()
-        {
-        return double(get()) * (1.0/4294967296.0); // 2^32
-        }
-        */
-
-        /// Get the max value of the random number.
-        uint max() const { return NV_UINT32_MAX; }
-
-        // Get a random seed.
-        static uint randomSeed();
-
-    };
-
-
-    /// Very simple random number generator with low storage requirements.
-    class SimpleRand : public Rand
-    {
-    public:
-
-        /// Constructor that uses the current time as the seed.
-        SimpleRand( time_e )
-        {
-            seed(randomSeed());
-        }
-
-        /// Constructor that uses the given seed.
-        SimpleRand( uint s = 0 )
-        {
-            seed(s);
-        }
-
-        /// Set the given seed.
-        virtual void seed( uint s )
-        {
-            current = s;
-        }
-
-        /// Get a random number.
-        virtual uint get()
-        {
-            return current = current * 1103515245 + 12345;
-        }
-
-    private:
-
-        uint current;
-
-    };
-
-
-    /// Mersenne twister random number generator.
-    class MTRand : public Rand
-    {
-    public:
-
-        enum { N = 624 };       // length of state vector
-        enum { M = 397 };
-
-        /// Constructor that uses the current time as the seed.
-        MTRand( time_e )
-        {
-            seed(randomSeed());
-        }
-
-        /// Constructor that uses the given seed.
-        MTRand( uint s = 0 )
-        {
-            seed(s);
-        }
-
-        /// Constructor that uses the given seeds.
-        NVMATH_API MTRand( const uint * seed_array, uint length );
-
-
-        /// Provide a new seed.
-        virtual void seed( uint s )
-        {
-            initialize(s);
-            reload();
-        }	
-
-        /// Get a random number between 0 - 65536.
-        virtual uint get()
-        {
-            // Pull a 32-bit integer from the generator state
-            // Every other access function simply transforms the numbers extracted here
-            if( left == 0 ) { 
-                reload(); 
-            }
-            left--;
-
-            uint s1;
-            s1 = *next++;
-            s1 ^= (s1 >> 11);
-            s1 ^= (s1 <<  7) & 0x9d2c5680U;
-            s1 ^= (s1 << 15) & 0xefc60000U;
-            return ( s1 ^ (s1 >> 18) );		
-        };
-
-
-    private:
-
-        NVMATH_API void initialize( uint32 seed );
-        NVMATH_API void reload();
-
-        uint hiBit( uint u ) const { return u & 0x80000000U; }
-        uint loBit( uint u ) const { return u & 0x00000001U; }
-        uint loBits( uint u ) const { return u & 0x7fffffffU; }
-        uint mixBits( uint u, uint v ) const { return hiBit(u) | loBits(v); }
-        uint twist( uint m, uint s0, uint s1 ) const { return m ^ (mixBits(s0,s1)>>1) ^ ((~loBit(s1)+1) & 0x9908b0dfU); }
-
-    private:
-
-        uint state[N];	// internal state
-        uint * next;	// next value to get from state
-        int left;		// number of values left before reload needed		
-
-    };
-
-
-
-    /** George Marsaglia's random number generator. 
-    * Code based on Thatcher Ulrich public domain source code:
-    * http://cvs.sourceforge.net/viewcvs.py/tu-testbed/tu-testbed/base/tu_random.cpp?rev=1.7&view=auto
-    *
-    * PRNG code adapted from the complimentary-multiply-with-carry
-    * code in the article: George Marsaglia, "Seeds for Random Number
-    * Generators", Communications of the ACM, May 2003, Vol 46 No 5,
-    * pp90-93.
-    * 
-    * The article says:
-    * 
-    * "Any one of the choices for seed table size and multiplier will
-    * provide a RNG that has passed extensive tests of randomness,
-    * particularly those in [3], yet is simple and fast --
-    * approximately 30 million random 32-bit integers per second on a
-    * 850MHz PC.  The period is a*b^n, where a is the multiplier, n
-    * the size of the seed table and b=2^32-1.  (a is chosen so that
-    * b is a primitive root of the prime a*b^n + 1.)"
-    * 
-    * [3] Marsaglia, G., Zaman, A., and Tsang, W.  Toward a universal
-    * random number generator.  _Statistics and Probability Letters
-    * 8_ (1990), 35-39.
-    */
-    class GMRand : public Rand
-    {
-    public:
-
-        enum { SEED_COUNT = 8 };
-
-        //	const uint64 a = 123471786;		// for SEED_COUNT=1024
-        //	const uint64 a = 123554632;		// for SEED_COUNT=512
-        //	const uint64 a = 8001634;		// for SEED_COUNT=255
-        //	const uint64 a = 8007626;		// for SEED_COUNT=128
-        //	const uint64 a = 647535442;		// for SEED_COUNT=64
-        //	const uint64 a = 547416522;		// for SEED_COUNT=32
-        //	const uint64 a = 487198574;		// for SEED_COUNT=16
-        //	const uint64 a = 716514398U;	// for SEED_COUNT=8
-        enum { a = 716514398U };
-
-
-        GMRand( time_e )
-        {
-            seed(randomSeed());
-        }
-
-        GMRand(uint s = 987654321)
-        {
-            seed(s);
-        }
-
-
-        /// Provide a new seed.
-        virtual void seed( uint s )
-        {
-            c = 362436;
-            i = SEED_COUNT - 1;
-
-            for(int i = 0; i < SEED_COUNT; i++) {
-                s = s ^ (s << 13);
-                s = s ^ (s >> 17);
-                s = s ^ (s << 5);
-                Q[i] = s;
-            }
-        }
-
-        /// Get a random number between 0 - 65536.
-        virtual uint get()
-        {
-            const uint32 r = 0xFFFFFFFE;		
-
-            uint64 t;
-            uint32 x;
-
-            i = (i + 1) & (SEED_COUNT - 1);
-            t = a * Q[i] + c;
-            c = uint32(t >> 32);
-            x = uint32(t + c);
-
-            if( x < c ) {
-                x++;
-                c++;
-            }
-
-            uint32  val = r - x;
-            Q[i] = val;
-            return val;
-        };
-
-
-    private:
-
-        uint32 c;
-        uint32 i;
-        uint32 Q[8];
-
-    };
-
-
-    /** Random number implementation from the GNU Sci. Lib. (GSL).
-    * Adapted from Nicholas Chapman version:
-    * 
-    * Copyright (C) 1996, 1997, 1998, 1999, 2000 James Theiler, Brian Gough
-    * This is the Unix rand48() generator. The generator returns the
-    * upper 32 bits from each term of the sequence,
-    * 
-    * x_{n+1} = (a x_n + c) mod m 
-    * 
-    * using 48-bit unsigned arithmetic, with a = 0x5DEECE66D , c = 0xB
-    * and m = 2^48. The seed specifies the upper 32 bits of the initial
-    * value, x_1, with the lower 16 bits set to 0x330E.
-    * 
-    * The theoretical value of x_{10001} is 244131582646046.
-    * 
-    * The period of this generator is ? FIXME (probably around 2^48). 
-    */
-    class Rand48 : public Rand
-    {
-    public:
-
-        Rand48( time_e )
-        {
-            seed(randomSeed());
-        }
-
-        Rand48( uint s = 0x1234ABCD )
-        {
-            seed(s);
-        }	
-
-
-        /** Set the given seed. */
-        virtual void seed( uint s ) {
-            vstate.x0 = 0x330E;
-            vstate.x1 = uint16(s & 0xFFFF);
-            vstate.x2 = uint16((s >> 16) & 0xFFFF);
-        }
-
-        /** Get a random number. */
-        virtual uint get() {
-
-            advance();
-
-            uint x1 = vstate.x1;
-            uint x2 = vstate.x2;
-            return (x2 << 16) + x1;
-        }
-
-
-    private:
-
-        void advance()
-        {
-            /* work with unsigned long ints throughout to get correct integer
-            promotions of any unsigned short ints */
-            const uint32 x0 = vstate.x0;
-            const uint32 x1 = vstate.x1;
-            const uint32 x2 = vstate.x2;
-
-            uint32 a;
-            a = a0 * x0 + c0;
-
-            vstate.x0 = uint16(a & 0xFFFF);
-            a >>= 16;
-
-            /* although the next line may overflow we only need the top 16 bits
-            in the following stage, so it does not matter */
-
-            a += a0 * x1 + a1 * x0; 
-            vstate.x1 = uint16(a & 0xFFFF);
-
-            a >>= 16;
-            a += a0 * x2 + a1 * x1 + a2 * x0;
-            vstate.x2 = uint16(a & 0xFFFF);
-        }
-
-
-    private:	
-        NVMATH_API static const uint16 a0, a1, a2, c0;
-
-        struct rand48_state_t { 
-            uint16 x0, x1, x2; 
-        } vstate;
-
-    };
-
-} // nv namespace
-
-#endif // NV_MATH_RANDOM_H
diff --git a/thirdparty/thekla_atlas/nvmath/Solver.cpp b/thirdparty/thekla_atlas/nvmath/Solver.cpp
deleted file mode 100644
index 191793ee29..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Solver.cpp
+++ /dev/null
@@ -1,744 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "Solver.h"
-#include "Sparse.h"
-
-#include "nvcore/Array.inl"
-
-using namespace nv;
-
-namespace
-{
-    class Preconditioner
-    {
-    public:
-        // Virtual dtor.
-        virtual ~Preconditioner() { }
-
-        // Apply preconditioning step.
-        virtual void apply(const FullVector & x, FullVector & y) const = 0;
-    };
-
-
-    // Jacobi preconditioner.
-    class JacobiPreconditioner : public Preconditioner
-    {
-    public:
-
-        JacobiPreconditioner(const SparseMatrix & M, bool symmetric) : m_inverseDiagonal(M.width())
-        {
-            nvCheck(M.isSquare());
-
-            for(uint x = 0; x < M.width(); x++)
-            {
-                float elem = M.getCoefficient(x, x);
-                //nvDebugCheck( elem != 0.0f ); // This can be zero in the presence of zero area triangles.
-
-                if (symmetric) 
-                {
-                    m_inverseDiagonal[x] = (elem != 0) ? 1.0f / sqrtf(fabsf(elem)) : 1.0f;
-                }
-                else 
-                {
-                    m_inverseDiagonal[x] = (elem != 0) ? 1.0f / elem : 1.0f;
-                }
-            }
-        }
-
-        void apply(const FullVector & x, FullVector & y) const
-        {
-            nvDebugCheck(x.dimension() == m_inverseDiagonal.dimension());
-            nvDebugCheck(y.dimension() == m_inverseDiagonal.dimension());
-
-            // @@ Wrap vector component-wise product into a separate function.
-            const uint D = x.dimension();
-            for (uint i = 0; i < D; i++)
-            {
-                y[i] = m_inverseDiagonal[i] * x[i];
-            }
-        }
-
-    private:
-
-        FullVector m_inverseDiagonal;
-
-    };
-
-} // namespace
-
-
-static bool ConjugateGradientSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon);
-static bool ConjugateGradientSolver(const Preconditioner & preconditioner, const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon);
-
-
-// Solve the symmetric system: At·A·x = At·b
-bool nv::LeastSquaresSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon/*1e-5f*/)
-{
-    nvDebugCheck(A.width() == x.dimension());
-    nvDebugCheck(A.height() == b.dimension());
-    nvDebugCheck(A.height() >= A.width()); // @@ If height == width we could solve it directly...
-
-    const uint D = A.width();
-
-    SparseMatrix At(A.height(), A.width());
-    transpose(A, At);
-
-    FullVector Atb(D);
-    //mult(Transposed, A, b, Atb);
-    mult(At, b, Atb);
-
-    SparseMatrix AtA(D);
-    //mult(Transposed, A, NoTransposed, A, AtA);
-    mult(At, A, AtA);
-
-    return SymmetricSolver(AtA, Atb, x, epsilon);
-}
-
-
-// See section 10.4.3 in: Mesh Parameterization: Theory and Practice, Siggraph Course Notes, August 2007
-bool nv::LeastSquaresSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, const uint * lockedParameters, uint lockedCount, float epsilon/*= 1e-5f*/)
-{
-    nvDebugCheck(A.width() == x.dimension());
-    nvDebugCheck(A.height() == b.dimension());
-    nvDebugCheck(A.height() >= A.width() - lockedCount);
-
-    // @@ This is not the most efficient way of building a system with reduced degrees of freedom. It would be faster to do it on the fly.
-
-    const uint D = A.width() - lockedCount;
-    nvDebugCheck(D > 0);
-
-    // Compute: b - Al * xl
-    FullVector b_Alxl(b);
-
-    for (uint y = 0; y < A.height(); y++)
-    {
-        const uint count = A.getRow(y).count();
-        for (uint e = 0; e < count; e++)
-        {
-            uint column = A.getRow(y)[e].x;
-
-            bool isFree = true;
-            for (uint i = 0; i < lockedCount; i++) 
-            {
-                isFree &= (lockedParameters[i] != column);
-            }
-
-            if (!isFree)
-            {
-                b_Alxl[y] -= x[column] * A.getRow(y)[e].v;
-            }
-        }
-    }
-
-    // Remove locked columns from A.
-    SparseMatrix Af(D, A.height());
-
-    for (uint y = 0; y < A.height(); y++)
-    {
-        const uint count = A.getRow(y).count();
-        for (uint e = 0; e < count; e++)
-        {
-            uint column = A.getRow(y)[e].x;
-            uint ix = column;
-
-            bool isFree = true;
-            for (uint i = 0; i < lockedCount; i++) 
-            {
-                isFree &= (lockedParameters[i] != column);
-                if (column > lockedParameters[i]) ix--; // shift columns
-            }
-
-            if (isFree)
-            {
-                Af.setCoefficient(ix, y, A.getRow(y)[e].v);
-            }
-        }
-    }
-
-    // Remove elements from x
-    FullVector xf(D);
-
-    for (uint i = 0, j = 0; i < A.width(); i++)
-    {
-        bool isFree = true;
-        for (uint l = 0; l < lockedCount; l++) 
-        {
-            isFree &= (lockedParameters[l] != i);
-        }
-
-        if (isFree)
-        {
-            xf[j++] = x[i];
-        }
-    }
-
-    // Solve reduced system.
-    bool result = LeastSquaresSolver(Af, b_Alxl, xf, epsilon);
-
-    // Copy results back to x.
-    for (uint i = 0, j = 0; i < A.width(); i++)
-    {
-        bool isFree = true;
-        for (uint l = 0; l < lockedCount; l++) 
-        {
-            isFree &= (lockedParameters[l] != i);
-        }
-
-        if (isFree)
-        {
-            x[i] = xf[j++];
-        }
-    }
-
-    return result;
-}
-
-
-bool nv::SymmetricSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon/*1e-5f*/)
-{
-    nvDebugCheck(A.height() == A.width());
-    nvDebugCheck(A.height() == b.dimension());
-    nvDebugCheck(b.dimension() == x.dimension());
-
-    JacobiPreconditioner jacobi(A, true);
-    return ConjugateGradientSolver(jacobi, A, b, x, epsilon);
-
-    //return ConjugateGradientSolver(A, b, x, epsilon);
-}
-
-
-/**
-* Compute the solution of the sparse linear system Ab=x using the Conjugate
-* Gradient method.
-*
-* Solving sparse linear systems:
-* (1)		A·x = b
-* 
-* The conjugate gradient algorithm solves (1) only in the case that A is 
-* symmetric and positive definite. It is based on the idea of minimizing the 
-* function
-* 
-* (2)		f(x) = 1/2·x·A·x - b·x
-* 
-* This function is minimized when its gradient
-* 
-* (3)		df = A·x - b
-* 
-* is zero, which is equivalent to (1). The minimization is carried out by 
-* generating a succession of search directions p.k and improved minimizers x.k. 
-* At each stage a quantity alfa.k is found that minimizes f(x.k + alfa.k·p.k), 
-* and x.k+1 is set equal to the new point x.k + alfa.k·p.k. The p.k and x.k are 
-* built up in such a way that x.k+1 is also the minimizer of f over the whole
-* vector space of directions already taken, {p.1, p.2, . . . , p.k}. After N 
-* iterations you arrive at the minimizer over the entire vector space, i.e., the 
-* solution to (1).
-*
-* For a really good explanation of the method see:
-*
-* "An Introduction to the Conjugate Gradient Method Without the Agonizing Pain",
-* Jonhathan Richard Shewchuk.
-*
-**/
-/*static*/ bool ConjugateGradientSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon)
-{
-    nvDebugCheck( A.isSquare() );
-    nvDebugCheck( A.width() == b.dimension() );
-    nvDebugCheck( A.width() == x.dimension() );
-
-    int i = 0;
-    const int D = A.width();
-    const int i_max = 4 * D;   // Convergence should be linear, but in some cases, it's not.
-
-    FullVector r(D);   // residual
-    FullVector p(D);   // search direction
-    FullVector q(D);   // 
-    float delta_0;
-    float delta_old;
-    float delta_new;
-    float alpha;
-    float beta;
-
-    // r = b - A·x;
-    copy(b, r);
-    sgemv(-1, A, x, 1, r);
-
-    // p = r;
-    copy(r, p);
-
-    delta_new = dot( r, r );
-    delta_0 = delta_new;
-
-    while (i < i_max && delta_new > epsilon*epsilon*delta_0)
-    {
-        i++;
-
-        // q = A·p
-        mult(A, p, q);
-
-        // alpha = delta_new / p·q
-        alpha = delta_new / dot( p, q );
-
-        // x = alfa·p + x
-        saxpy(alpha, p, x);
-
-        if ((i & 31) == 0) // recompute r after 32 steps
-        {
-            // r = b - A·x
-            copy(b, r);
-            sgemv(-1, A, x, 1, r);
-        }
-        else
-        {
-            // r = r - alpha·q
-            saxpy(-alpha, q, r);
-        }
-
-        delta_old = delta_new;
-        delta_new = dot( r, r );
-
-        beta = delta_new / delta_old;
-
-        // p = beta·p + r
-        scal(beta, p);
-        saxpy(1, r, p);
-    }
-
-    return delta_new <= epsilon*epsilon*delta_0;
-}
-
-
-// Conjugate gradient with preconditioner.
-/*static*/ bool ConjugateGradientSolver(const Preconditioner & preconditioner, const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon)
-{
-    nvDebugCheck( A.isSquare() );
-    nvDebugCheck( A.width() == b.dimension() );
-    nvDebugCheck( A.width() == x.dimension() );
-
-    int i = 0;
-    const int D = A.width();
-    const int i_max = 4 * D;   // Convergence should be linear, but in some cases, it's not.
-
-    FullVector r(D);    // residual
-    FullVector p(D);    // search direction
-    FullVector q(D);    // 
-    FullVector s(D);    // preconditioned
-    float delta_0;
-    float delta_old;
-    float delta_new;
-    float alpha;
-    float beta;
-
-    // r = b - A·x
-    copy(b, r);
-    sgemv(-1, A, x, 1, r);
-
-
-    // p = M^-1 · r
-    preconditioner.apply(r, p);
-    //copy(r, p);
-
-
-    delta_new = dot(r, p);
-    delta_0 = delta_new;
-
-    while (i < i_max && delta_new > epsilon*epsilon*delta_0)
-    {
-        i++;
-
-        // q = A·p
-        mult(A, p, q);
-
-        // alpha = delta_new / p·q
-        alpha = delta_new / dot(p, q);
-
-        // x = alfa·p + x
-        saxpy(alpha, p, x);
-
-        if ((i & 31) == 0)  // recompute r after 32 steps
-        {			
-            // r = b - A·x
-            copy(b, r);
-            sgemv(-1, A, x, 1, r);
-        }
-        else
-        {
-            // r = r - alfa·q
-            saxpy(-alpha, q, r);
-        }
-
-        // s = M^-1 · r
-        preconditioner.apply(r, s);
-        //copy(r, s);
-
-        delta_old = delta_new;
-        delta_new = dot( r, s );
-
-        beta = delta_new / delta_old;
-
-        // p = s + beta·p
-        scal(beta, p);
-        saxpy(1, s, p);
-    }
-
-    return delta_new <= epsilon*epsilon*delta_0;
-}
-
-
-#if 0 // Nonsymmetric solvers
-
-/** Bi-conjugate gradient method.  */
-MATHLIB_API int BiConjugateGradientSolve( const SparseMatrix &A, const DenseVector &b, DenseVector &x, float epsilon ) {
-    piDebugCheck( A.IsSquare() );
-    piDebugCheck( A.Width() == b.Dim() );
-    piDebugCheck( A.Width() == x.Dim() );
-
-    int i = 0;
-    const int D = A.Width();
-    const int i_max = 4 * D;
-
-    float resid;
-    float rho_1 = 0;
-    float rho_2 = 0;
-    float alpha;
-    float beta;
-
-    DenseVector r(D);
-    DenseVector rtilde(D);
-    DenseVector p(D);
-    DenseVector ptilde(D);
-    DenseVector q(D);
-    DenseVector qtilde(D);
-    DenseVector tmp(D);	// temporal vector.
-
-    // r = b - A·x;
-    A.Product( x, tmp );
-    r.Sub( b, tmp );
-
-    // rtilde = r
-    rtilde.Set( r );
-
-    // p = r;
-    p.Set( r );
-
-    // ptilde = rtilde
-    ptilde.Set( rtilde );
-
-
-
-    float normb = b.Norm();
-    if( normb == 0.0 ) normb = 1;
-
-    // test convergence
-    resid = r.Norm() / normb;
-    if( resid < epsilon ) {
-        // method converges?
-        return 0;
-    }
-
-
-    while( i < i_max ) {
-
-        i++;
-
-        rho_1 = DenseVectorDotProduct( r, rtilde );
-
-        if( rho_1 == 0 ) {
-            // method fails.
-            return -i;
-        }
-
-        if (i == 1) {
-            p.Set( r );
-            ptilde.Set( rtilde );
-        } 
-        else {
-            beta = rho_1 / rho_2;
-
-            // p = r + beta * p;
-            p.Mad( r, p, beta );
-
-            // ptilde = ztilde + beta * ptilde;
-            ptilde.Mad( rtilde, ptilde, beta );
-        }
-
-        // q = A * p;
-        A.Product( p, q );
-
-        // qtilde = A^t * ptilde;
-        A.TransProduct( ptilde, qtilde );
-
-        alpha = rho_1 / DenseVectorDotProduct( ptilde, q );
-
-        // x += alpha * p;
-        x.Mad( x, p, alpha );
-
-        // r -= alpha * q;
-        r.Mad( r, q, -alpha );
-
-        // rtilde -= alpha * qtilde;
-        rtilde.Mad( rtilde, qtilde, -alpha );
-
-        rho_2 = rho_1;
-
-        // test convergence
-        resid = r.Norm() / normb;
-        if( resid < epsilon ) {
-            // method converges
-            return i;
-        }
-    }
-
-    return i;
-}
-
-
-/** Bi-conjugate gradient stabilized method. */
-int BiCGSTABSolve( const SparseMatrix &A, const DenseVector &b, DenseVector &x, float epsilon ) {
-    piDebugCheck( A.IsSquare() );
-    piDebugCheck( A.Width() == b.Dim() );
-    piDebugCheck( A.Width() == x.Dim() );
-
-    int i = 0;
-    const int D = A.Width();
-    const int i_max = 2 * D;
-
-
-    float resid;
-    float rho_1 = 0;
-    float rho_2 = 0;
-    float alpha = 0;
-    float beta = 0;
-    float omega = 0;
-
-    DenseVector p(D);
-    DenseVector phat(D);
-    DenseVector s(D);
-    DenseVector shat(D);
-    DenseVector t(D);
-    DenseVector v(D);
-
-    DenseVector r(D);
-    DenseVector rtilde(D);
-
-    DenseVector tmp(D);
-
-    // r = b - A·x;
-    A.Product( x, tmp );
-    r.Sub( b, tmp );
-
-    // rtilde = r
-    rtilde.Set( r );
-
-
-    float normb = b.Norm();
-    if( normb == 0.0 ) normb = 1;
-
-    // test convergence
-    resid = r.Norm() / normb;
-    if( resid < epsilon ) {
-        // method converges?
-        return 0;
-    }
-
-
-    while( i<i_max ) {
-
-        i++;
-
-        rho_1 = DenseVectorDotProduct( rtilde, r );
-        if( rho_1 == 0 ) {
-            // method fails
-            return -i;
-        }
-
-
-        if( i == 1 ) {
-            p.Set( r );
-        }
-        else {
-            beta = (rho_1 / rho_2) * (alpha / omega);
-
-            // p = r + beta * (p - omega * v);
-            p.Mad( p, v, -omega );
-            p.Mad( r, p, beta );
-        }
-
-        //phat = M.solve(p);
-        phat.Set( p );
-        //Precond( &phat, p );
-
-        //v = A * phat;
-        A.Product( phat, v );
-
-        alpha = rho_1 / DenseVectorDotProduct( rtilde, v );
-
-        // s = r - alpha * v;
-        s.Mad( r, v, -alpha );
-
-
-        resid = s.Norm() / normb;
-        if( resid < epsilon ) {
-            // x += alpha * phat;
-            x.Mad( x, phat, alpha );
-            return i;
-        }
-
-        //shat = M.solve(s);
-        shat.Set( s );
-        //Precond( &shat, s );
-
-        //t = A * shat;
-        A.Product( shat, t );
-
-        omega = DenseVectorDotProduct( t, s ) / DenseVectorDotProduct( t, t );
-
-        // x += alpha * phat + omega * shat;
-        x.Mad( x, shat, omega );
-        x.Mad( x, phat, alpha );
-
-        //r = s - omega * t;
-        r.Mad( s, t, -omega );
-
-        rho_2 = rho_1;
-
-        resid = r.Norm() / normb;
-        if( resid < epsilon ) {
-            return i;
-        }
-
-        if( omega == 0 ) {
-            return -i;	// ???
-        }
-    }
-
-    return i;
-}
-
-
-/** Bi-conjugate gradient stabilized method. */
-int BiCGSTABPrecondSolve( const SparseMatrix &A, const DenseVector &b, DenseVector &x, const IPreconditioner &M, float epsilon ) {
-    piDebugCheck( A.IsSquare() );
-    piDebugCheck( A.Width() == b.Dim() );
-    piDebugCheck( A.Width() == x.Dim() );
-
-    int i = 0;
-    const int D = A.Width();
-    const int i_max = D;
-    //	const int i_max = 1000;
-
-
-    float resid;
-    float rho_1 = 0;
-    float rho_2 = 0;
-    float alpha = 0;
-    float beta = 0;
-    float omega = 0;
-
-    DenseVector p(D);
-    DenseVector phat(D);
-    DenseVector s(D);
-    DenseVector shat(D);
-    DenseVector t(D);
-    DenseVector v(D);
-
-    DenseVector r(D);
-    DenseVector rtilde(D);
-
-    DenseVector tmp(D);
-
-    // r = b - A·x;
-    A.Product( x, tmp );
-    r.Sub( b, tmp );
-
-    // rtilde = r
-    rtilde.Set( r );
-
-
-    float normb = b.Norm();
-    if( normb == 0.0 ) normb = 1;
-
-    // test convergence
-    resid = r.Norm() / normb;
-    if( resid < epsilon ) {
-        // method converges?
-        return 0;
-    }
-
-
-    while( i<i_max ) {
-
-        i++;
-
-        rho_1 = DenseVectorDotProduct( rtilde, r );
-        if( rho_1 == 0 ) {
-            // method fails
-            return -i;
-        }
-
-
-        if( i == 1 ) {
-            p.Set( r );
-        }
-        else {
-            beta = (rho_1 / rho_2) * (alpha / omega);
-
-            // p = r + beta * (p - omega * v);
-            p.Mad( p, v, -omega );
-            p.Mad( r, p, beta );
-        }
-
-        //phat = M.solve(p);
-        //phat.Set( p );
-        M.Precond( &phat, p );
-
-        //v = A * phat;
-        A.Product( phat, v );
-
-        alpha = rho_1 / DenseVectorDotProduct( rtilde, v );
-
-        // s = r - alpha * v;
-        s.Mad( r, v, -alpha );
-
-
-        resid = s.Norm() / normb;
-
-        //printf( "--- Iteration %d: residual = %f\n", i, resid );
-
-        if( resid < epsilon ) {
-            // x += alpha * phat;
-            x.Mad( x, phat, alpha );
-            return i;
-        }
-
-        //shat = M.solve(s);
-        //shat.Set( s );
-        M.Precond( &shat, s );
-
-        //t = A * shat;
-        A.Product( shat, t );
-
-        omega = DenseVectorDotProduct( t, s ) / DenseVectorDotProduct( t, t );
-
-        // x += alpha * phat + omega * shat;
-        x.Mad( x, shat, omega );
-        x.Mad( x, phat, alpha );
-
-        //r = s - omega * t;
-        r.Mad( s, t, -omega );
-
-        rho_2 = rho_1;
-
-        resid = r.Norm() / normb;
-        if( resid < epsilon ) {
-            return i;
-        }
-
-        if( omega == 0 ) {
-            return -i;	// ???
-        }
-    }
-
-    return i;
-}
-
-#endif
diff --git a/thirdparty/thekla_atlas/nvmath/Solver.h b/thirdparty/thekla_atlas/nvmath/Solver.h
deleted file mode 100644
index 2bbf92736a..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Solver.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_SOLVER_H
-#define NV_MATH_SOLVER_H
-
-#include "nvmath.h"
-
-namespace nv
-{
-    class SparseMatrix;
-    class FullVector;
-
-
-    // Linear solvers.
-    NVMATH_API bool LeastSquaresSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon = 1e-5f);
-    NVMATH_API bool LeastSquaresSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, const uint * lockedParameters, uint lockedCount, float epsilon = 1e-5f);
-    NVMATH_API bool SymmetricSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon = 1e-5f);
-    //NVMATH_API void NonSymmetricSolver(const SparseMatrix & A, const FullVector & b, FullVector & x, float epsilon = 1e-5f);
-
-} // nv namespace
-
-
-#endif // NV_MATH_SOLVER_H
diff --git a/thirdparty/thekla_atlas/nvmath/Sparse.cpp b/thirdparty/thekla_atlas/nvmath/Sparse.cpp
deleted file mode 100644
index 421e7ee022..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Sparse.cpp
+++ /dev/null
@@ -1,889 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castanyo@yahoo.es>
-
-#include "Sparse.h"
-#include "KahanSum.h"
-
-#include "nvcore/Array.inl"
-
-#define USE_KAHAN_SUM 0
-
-
-using namespace nv;
-
-
-FullVector::FullVector(uint dim)
-{ 
-    m_array.resize(dim); 
-}
-
-FullVector::FullVector(const FullVector & v) : m_array(v.m_array)
-{
-}
-
-const FullVector & FullVector::operator=(const FullVector & v)
-{
-    nvCheck(dimension() == v.dimension());
-
-    m_array = v.m_array;
-
-    return *this;
-}
-
-
-void FullVector::fill(float f)
-{
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] = f;
-    }
-}
-
-void FullVector::operator+= (const FullVector & v)
-{
-    nvDebugCheck(dimension() == v.dimension());
-
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] += v.m_array[i];
-    }
-}
-
-void FullVector::operator-= (const FullVector & v)
-{
-    nvDebugCheck(dimension() == v.dimension());
-
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] -= v.m_array[i];
-    }
-}
-
-void FullVector::operator*= (const FullVector & v)
-{
-    nvDebugCheck(dimension() == v.dimension());
-
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] *= v.m_array[i];
-    }
-}
-
-void FullVector::operator+= (float f)
-{
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] += f;
-    }
-}
-
-void FullVector::operator-= (float f)
-{
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] -= f;
-    }
-}
-
-void FullVector::operator*= (float f)
-{
-    const uint dim = dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        m_array[i] *= f;
-    }
-}
-
-
-void nv::saxpy(float a, const FullVector & x, FullVector & y)
-{
-    nvDebugCheck(x.dimension() == y.dimension());
-
-    const uint dim = x.dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        y[i] += a * x[i];
-    }
-}
-
-void nv::copy(const FullVector & x, FullVector & y)
-{
-    nvDebugCheck(x.dimension() == y.dimension());
-
-    const uint dim = x.dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        y[i] = x[i];
-    }
-}
-
-void nv::scal(float a, FullVector & x)
-{
-    const uint dim = x.dimension();
-    for (uint i = 0; i < dim; i++)
-    {
-        x[i] *= a;
-    }
-}
-
-float nv::dot(const FullVector & x, const FullVector & y)
-{
-    nvDebugCheck(x.dimension() == y.dimension());
-
-    const uint dim = x.dimension();
-
-#if USE_KAHAN_SUM
-    KahanSum kahan;
-    for (uint i = 0; i < dim; i++)
-    {
-        kahan.add(x[i] * y[i]);
-    }
-    return kahan.sum();
-#else
-    float sum = 0;
-    for (uint i = 0; i < dim; i++)
-    {
-        sum += x[i] * y[i];
-    }
-    return sum;
-#endif
-}
-
-
-FullMatrix::FullMatrix(uint d) : m_width(d), m_height(d)
-{
-    m_array.resize(d*d, 0.0f);
-}
-
-FullMatrix::FullMatrix(uint w, uint h) : m_width(w), m_height(h)
-{
-    m_array.resize(w*h, 0.0f);
-}
-
-FullMatrix::FullMatrix(const FullMatrix & m) : m_width(m.m_width), m_height(m.m_height)
-{
-    m_array = m.m_array;
-}
-
-const FullMatrix & FullMatrix::operator=(const FullMatrix & m)
-{
-    nvCheck(width() == m.width());
-    nvCheck(height() == m.height());
-
-    m_array = m.m_array;
-
-    return *this;
-}
-
-
-float FullMatrix::getCoefficient(uint x, uint y) const
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    return m_array[y * width() + x];
-}
-
-void FullMatrix::setCoefficient(uint x, uint y, float f)
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    m_array[y * width() + x] = f;
-}
-
-void FullMatrix::addCoefficient(uint x, uint y, float f)
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    m_array[y * width() + x] += f;
-}
-
-void FullMatrix::mulCoefficient(uint x, uint y, float f)
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    m_array[y * width() + x] *= f;
-}
-
-float FullMatrix::dotRow(uint y, const FullVector & v) const
-{
-    nvDebugCheck( v.dimension() == width() );
-    nvDebugCheck( y < height() );
-
-    float sum = 0;
-
-    const uint count = v.dimension();
-    for (uint i = 0; i < count; i++)
-    {
-        sum += m_array[y * count + i] * v[i];
-    }
-
-    return sum;
-}
-
-void FullMatrix::madRow(uint y, float alpha, FullVector & v) const
-{
-    nvDebugCheck( v.dimension() == width() );
-    nvDebugCheck( y < height() );
-
-    const uint count = v.dimension();
-    for (uint i = 0; i < count; i++)
-    {
-        v[i] += m_array[y * count + i];
-    }
-}
-
-
-// y = M * x
-void nv::mult(const FullMatrix & M, const FullVector & x, FullVector & y)
-{
-    mult(NoTransposed, M, x, y);
-}
-
-void nv::mult(Transpose TM, const FullMatrix & M, const FullVector & x, FullVector & y)
-{
-    const uint w = M.width();
-    const uint h = M.height();
-
-    if (TM == Transposed)
-    {
-        nvDebugCheck( h == x.dimension() );
-        nvDebugCheck( w == y.dimension() );
-
-        y.fill(0.0f);
-
-        for (uint i = 0; i < h; i++)
-        {
-            M.madRow(i, x[i], y);
-        }
-    }
-    else
-    {
-        nvDebugCheck( w == x.dimension() );
-        nvDebugCheck( h == y.dimension() );
-
-        for (uint i = 0; i < h; i++)
-        {
-            y[i] = M.dotRow(i, x);
-        }
-    }
-}
-
-// y = alpha*A*x + beta*y
-void nv::sgemv(float alpha, const FullMatrix & A, const FullVector & x, float beta, FullVector & y)
-{
-    sgemv(alpha, NoTransposed, A, x, beta, y);
-}
-
-void nv::sgemv(float alpha, Transpose TA, const FullMatrix & A, const FullVector & x, float beta, FullVector & y)
-{
-    const uint w = A.width();
-    const uint h = A.height();
-
-    if (TA == Transposed)
-    {
-        nvDebugCheck( h == x.dimension() );
-        nvDebugCheck( w == y.dimension() );
-
-        for (uint i = 0; i < h; i++)
-        {
-            A.madRow(i, alpha * x[i], y);
-        }
-    }
-    else
-    {
-        nvDebugCheck( w == x.dimension() );
-        nvDebugCheck( h == y.dimension() );
-
-        for (uint i = 0; i < h; i++)
-        {
-            y[i] = alpha * A.dotRow(i, x) + beta * y[i];
-        }
-    }
-}
-
-
-// Multiply a row of A by a column of B.
-static float dot(uint j, Transpose TA, const FullMatrix & A, uint i, Transpose TB, const FullMatrix & B)
-{
-    const uint w = (TA == NoTransposed) ? A.width() : A.height();
-    nvDebugCheck(w == ((TB == NoTransposed) ? B.height() : A.width()));
-
-    float sum = 0.0f;
-
-    for (uint k = 0; k < w; k++)
-    {
-        const float a = (TA == NoTransposed) ? A.getCoefficient(k, j) : A.getCoefficient(j, k); // @@ Move branches out of the loop?
-        const float b = (TB == NoTransposed) ? B.getCoefficient(i, k) : A.getCoefficient(k, i);
-        sum += a * b;
-    }
-
-    return sum;
-}
-
-
-// C = A * B
-void nv::mult(const FullMatrix & A, const FullMatrix & B, FullMatrix & C)
-{
-    mult(NoTransposed, A, NoTransposed, B, C);
-}
-
-void nv::mult(Transpose TA, const FullMatrix & A, Transpose TB, const FullMatrix & B, FullMatrix & C)
-{
-    sgemm(1.0f, TA, A, TB, B, 0.0f, C);
-}
-
-// C = alpha*A*B + beta*C
-void nv::sgemm(float alpha, const FullMatrix & A, const FullMatrix & B, float beta, FullMatrix & C)
-{
-    sgemm(alpha, NoTransposed, A, NoTransposed, B, beta, C);
-}
-
-void nv::sgemm(float alpha, Transpose TA, const FullMatrix & A, Transpose TB, const FullMatrix & B, float beta, FullMatrix & C)
-{
-    const uint w = C.width();
-    const uint h = C.height();
-
-    uint aw = (TA == NoTransposed) ? A.width() : A.height();
-    uint ah = (TA == NoTransposed) ? A.height() : A.width();
-    uint bw = (TB == NoTransposed) ? B.width() : B.height();
-    uint bh = (TB == NoTransposed) ? B.height() : B.width();
-
-    nvDebugCheck(aw == bh);
-    nvDebugCheck(bw == ah);
-    nvDebugCheck(w == bw);
-    nvDebugCheck(h == ah);
-
-    for (uint y = 0; y < h; y++)
-    {
-        for (uint x = 0; x < w; x++)
-        {
-            float c = alpha * ::dot(x, TA, A, y, TB, B) + beta * C.getCoefficient(x, y);
-            C.setCoefficient(x, y, c);
-        }
-    }
-}
-
-
-
-
-
-/// Ctor. Init the size of the sparse matrix.
-SparseMatrix::SparseMatrix(uint d) : m_width(d)
-{
-    m_array.resize(d);
-}
-
-/// Ctor. Init the size of the sparse matrix.
-SparseMatrix::SparseMatrix(uint w, uint h) : m_width(w)
-{
-    m_array.resize(h);
-}
-
-SparseMatrix::SparseMatrix(const SparseMatrix & m) : m_width(m.m_width)
-{
-    m_array = m.m_array;
-}
-
-const SparseMatrix & SparseMatrix::operator=(const SparseMatrix & m)
-{
-    nvCheck(width() == m.width());
-    nvCheck(height() == m.height());
-
-    m_array = m.m_array;
-
-    return *this;
-}
-
-
-// x is column, y is row
-float SparseMatrix::getCoefficient(uint x, uint y) const
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    const uint count = m_array[y].count();
-    for (uint i = 0; i < count; i++)
-    {
-        if (m_array[y][i].x == x) return m_array[y][i].v;
-    }
-
-    return 0.0f;
-}
-
-void SparseMatrix::setCoefficient(uint x, uint y, float f)
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    const uint count = m_array[y].count();
-    for (uint i = 0; i < count; i++)
-    {
-        if (m_array[y][i].x == x) 
-        {
-            m_array[y][i].v = f;
-            return;
-        }
-    }
-
-    if (f != 0.0f)
-    {
-        Coefficient c = { x, f };
-        m_array[y].append( c );
-    }
-}
-
-void SparseMatrix::addCoefficient(uint x, uint y, float f)
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    if (f != 0.0f)
-    {
-        const uint count = m_array[y].count();
-        for (uint i = 0; i < count; i++)
-        {
-            if (m_array[y][i].x == x) 
-            {
-                m_array[y][i].v += f;
-                return;
-            }
-        }
-
-        Coefficient c = { x, f };
-        m_array[y].append( c );
-    }
-}
-
-void SparseMatrix::mulCoefficient(uint x, uint y, float f)
-{
-    nvDebugCheck( x < width() );
-    nvDebugCheck( y < height() );
-
-    const uint count = m_array[y].count();
-    for (uint i = 0; i < count; i++)
-    {
-        if (m_array[y][i].x == x) 
-        {
-            m_array[y][i].v *= f;
-            return;
-        }
-    }
-
-    if (f != 0.0f)
-    {
-        Coefficient c = { x, f };
-        m_array[y].append( c );
-    }
-}
-
-
-float SparseMatrix::sumRow(uint y) const
-{
-    nvDebugCheck( y < height() );
-
-    const uint count = m_array[y].count();
-
-#if USE_KAHAN_SUM
-    KahanSum kahan;
-    for (uint i = 0; i < count; i++)
-    {
-        kahan.add(m_array[y][i].v);
-    }
-    return kahan.sum();
-#else
-    float sum = 0;
-    for (uint i = 0; i < count; i++)
-    {
-        sum += m_array[y][i].v;
-    }
-    return sum;
-#endif
-}
-
-float SparseMatrix::dotRow(uint y, const FullVector & v) const
-{
-    nvDebugCheck( y < height() );
-
-    const uint count = m_array[y].count();
-
-#if USE_KAHAN_SUM
-    KahanSum kahan;
-    for (uint i = 0; i < count; i++)
-    {
-        kahan.add(m_array[y][i].v * v[m_array[y][i].x]);
-    }
-    return kahan.sum();
-#else
-    float sum = 0;
-    for (uint i = 0; i < count; i++)
-    {
-        sum += m_array[y][i].v * v[m_array[y][i].x];
-    }
-    return sum;
-#endif
-}
-
-void SparseMatrix::madRow(uint y, float alpha, FullVector & v) const
-{
-    nvDebugCheck(y < height());
-
-    const uint count = m_array[y].count();
-    for (uint i = 0; i < count; i++)
-    {
-        v[m_array[y][i].x] += alpha * m_array[y][i].v;
-    }
-}
-
-
-void SparseMatrix::clearRow(uint y)
-{
-    nvDebugCheck( y < height() );
-
-    m_array[y].clear();
-}
-
-void SparseMatrix::scaleRow(uint y, float f)
-{
-    nvDebugCheck( y < height() );
-
-    const uint count = m_array[y].count();
-    for (uint i = 0; i < count; i++)
-    {
-        m_array[y][i].v *= f;
-    }
-}
-
-void SparseMatrix::normalizeRow(uint y)
-{
-    nvDebugCheck( y < height() );
-
-    float norm = 0.0f;
-
-    const uint count = m_array[y].count();
-    for (uint i = 0; i < count; i++)
-    {
-        float f = m_array[y][i].v;
-        norm += f * f;
-    }
-
-    scaleRow(y, 1.0f / sqrtf(norm));
-}
-
-
-void SparseMatrix::clearColumn(uint x)
-{
-    nvDebugCheck(x < width());
-
-    for (uint y = 0; y < height(); y++)
-    {
-        const uint count = m_array[y].count();
-        for (uint e = 0; e < count; e++)
-        {
-            if (m_array[y][e].x == x)
-            {
-                m_array[y][e].v = 0.0f;
-                break;
-            }
-        }
-    }
-}
-
-void SparseMatrix::scaleColumn(uint x, float f)
-{
-    nvDebugCheck(x < width());
-
-    for (uint y = 0; y < height(); y++)
-    {
-        const uint count = m_array[y].count();
-        for (uint e = 0; e < count; e++)
-        {
-            if (m_array[y][e].x == x)
-            {
-                m_array[y][e].v *= f;
-                break;
-            }
-        }
-    }
-}
-
-const Array<SparseMatrix::Coefficient> & SparseMatrix::getRow(uint y) const
-{
-    return m_array[y];
-}
-
-
-bool SparseMatrix::isSymmetric() const
-{
-    for (uint y = 0; y < height(); y++)
-    {
-        const uint count = m_array[y].count();
-        for (uint e = 0; e < count; e++)
-        {
-            const uint x = m_array[y][e].x;
-            if (x > y) {
-                float v = m_array[y][e].v;
-
-                if (!equal(getCoefficient(y, x), v)) {  // @@ epsilon
-                    return false;
-                }
-            }
-        }
-    }
-
-    return true;
-}
-
-
-// y = M * x
-void nv::mult(const SparseMatrix & M, const FullVector & x, FullVector & y)
-{
-    mult(NoTransposed, M, x, y);
-}
-
-void nv::mult(Transpose TM, const SparseMatrix & M, const FullVector & x, FullVector & y)
-{
-    const uint w = M.width();
-    const uint h = M.height();
-
-    if (TM == Transposed)
-    {
-        nvDebugCheck( h == x.dimension() );
-        nvDebugCheck( w == y.dimension() );
-
-        y.fill(0.0f);
-
-        for (uint i = 0; i < h; i++)
-        {
-            M.madRow(i, x[i], y);
-        }
-    }
-    else
-    {
-        nvDebugCheck( w == x.dimension() );
-        nvDebugCheck( h == y.dimension() );
-
-        for (uint i = 0; i < h; i++)
-        {
-            y[i] = M.dotRow(i, x);
-        }
-    }
-}
-
-// y = alpha*A*x + beta*y
-void nv::sgemv(float alpha, const SparseMatrix & A, const FullVector & x, float beta, FullVector & y)
-{
-    sgemv(alpha, NoTransposed, A, x, beta, y);
-}
-
-void nv::sgemv(float alpha, Transpose TA, const SparseMatrix & A, const FullVector & x, float beta, FullVector & y)
-{
-    const uint w = A.width();
-    const uint h = A.height();
-
-    if (TA == Transposed)
-    {
-        nvDebugCheck( h == x.dimension() );
-        nvDebugCheck( w == y.dimension() );
-
-        for (uint i = 0; i < h; i++)
-        {
-            A.madRow(i, alpha * x[i], y);
-        }
-    }
-    else
-    {
-        nvDebugCheck( w == x.dimension() );
-        nvDebugCheck( h == y.dimension() );
-
-        for (uint i = 0; i < h; i++)
-        {
-            y[i] = alpha * A.dotRow(i, x) + beta * y[i];
-        }
-    }
-}
-
-
-// dot y-row of A by x-column of B
-static float dotRowColumn(int y, const SparseMatrix & A, int x, const SparseMatrix & B)
-{
-    const Array<SparseMatrix::Coefficient> & row = A.getRow(y);
-
-    const uint count = row.count();
-
-#if USE_KAHAN_SUM
-    KahanSum kahan;
-    for (uint i = 0; i < count; i++)
-    {
-        const SparseMatrix::Coefficient & c = row[i];
-        kahan.add(c.v * B.getCoefficient(x, c.x));
-    }
-    return kahan.sum();
-#else
-    float sum = 0.0f;
-    for (uint i = 0; i < count; i++)
-    {
-        const SparseMatrix::Coefficient & c = row[i];
-        sum += c.v * B.getCoefficient(x, c.x);
-    }
-    return sum;
-#endif
-}
-
-// dot y-row of A by x-row of B
-static float dotRowRow(int y, const SparseMatrix & A, int x, const SparseMatrix & B)
-{
-    const Array<SparseMatrix::Coefficient> & row = A.getRow(y);
-
-    const uint count = row.count();
-
-#if USE_KAHAN_SUM
-    KahanSum kahan;
-    for (uint i = 0; i < count; i++)
-    {
-        const SparseMatrix::Coefficient & c = row[i];
-        kahan.add(c.v * B.getCoefficient(c.x, x));
-    }
-    return kahan.sum();
-#else
-    float sum = 0.0f;
-    for (uint i = 0; i < count; i++)
-    {
-        const SparseMatrix::Coefficient & c = row[i];
-        sum += c.v * B.getCoefficient(c.x, x);
-    }
-    return sum;
-#endif
-}
-
-// dot y-column of A by x-column of B
-static float dotColumnColumn(int y, const SparseMatrix & A, int x, const SparseMatrix & B)
-{
-    nvDebugCheck(A.height() == B.height());
-
-    const uint h = A.height();
-
-#if USE_KAHAN_SUM
-    KahanSum kahan;
-    for (uint i = 0; i < h; i++)
-    {
-        kahan.add(A.getCoefficient(y, i) * B.getCoefficient(x, i));
-    }
-    return kahan.sum();
-#else
-    float sum = 0.0f;
-    for (uint i = 0; i < h; i++)
-    {
-        sum += A.getCoefficient(y, i) * B.getCoefficient(x, i);
-    }
-    return sum;
-#endif
-}
-
-
-void nv::transpose(const SparseMatrix & A, SparseMatrix & B)
-{
-    nvDebugCheck(A.width() == B.height());
-    nvDebugCheck(B.width() == A.height());
-
-    const uint w = A.width();
-    for (uint x = 0; x < w; x++)
-    {
-        B.clearRow(x);
-    }
-
-    const uint h = A.height();
-    for (uint y = 0; y < h; y++)
-    {
-        const Array<SparseMatrix::Coefficient> & row = A.getRow(y);
-
-        const uint count = row.count();
-        for (uint i = 0; i < count; i++)
-        {
-            const SparseMatrix::Coefficient & c = row[i];
-            nvDebugCheck(c.x < w);
-
-            B.setCoefficient(y, c.x, c.v);
-        }
-    }
-}
-
-// C = A * B
-void nv::mult(const SparseMatrix & A, const SparseMatrix & B, SparseMatrix & C)
-{
-    mult(NoTransposed, A, NoTransposed, B, C);
-}
-
-void nv::mult(Transpose TA, const SparseMatrix & A, Transpose TB, const SparseMatrix & B, SparseMatrix & C)
-{
-    sgemm(1.0f, TA, A, TB, B, 0.0f, C);
-}
-
-// C = alpha*A*B + beta*C
-void nv::sgemm(float alpha, const SparseMatrix & A, const SparseMatrix & B, float beta, SparseMatrix & C)
-{
-    sgemm(alpha, NoTransposed, A, NoTransposed, B, beta, C);
-}
-
-void nv::sgemm(float alpha, Transpose TA, const SparseMatrix & A, Transpose TB, const SparseMatrix & B, float beta, SparseMatrix & C)
-{
-    const uint w = C.width();
-    const uint h = C.height();
-
-    uint aw = (TA == NoTransposed) ? A.width() : A.height();
-    uint ah = (TA == NoTransposed) ? A.height() : A.width();
-    uint bw = (TB == NoTransposed) ? B.width() : B.height();
-    uint bh = (TB == NoTransposed) ? B.height() : B.width();
-
-    nvDebugCheck(aw == bh);
-    nvDebugCheck(bw == ah);
-    nvDebugCheck(w == bw);
-    nvDebugCheck(h == ah);
-
-
-    for (uint y = 0; y < h; y++)
-    {
-        for (uint x = 0; x < w; x++)
-        {
-            float c = beta * C.getCoefficient(x, y);
-
-            if (TA == NoTransposed && TB == NoTransposed)
-            {
-                // dot y-row of A by x-column of B.
-                c += alpha * dotRowColumn(y, A, x, B);
-            }
-            else if (TA == Transposed && TB == Transposed)
-            {
-                // dot y-column of A by x-row of B.
-                c += alpha * dotRowColumn(x, B, y, A);
-            }
-            else if (TA == Transposed && TB == NoTransposed)
-            {
-                // dot y-column of A by x-column of B.
-                c += alpha * dotColumnColumn(y, A, x, B);
-            }
-            else if (TA == NoTransposed && TB == Transposed)
-            {
-                // dot y-row of A by x-row of B.
-                c += alpha * dotRowRow(y, A, x, B);
-            }
-
-            C.setCoefficient(x, y, c);
-        }
-    }
-}
-
-// C = At * A
-void nv::sqm(const SparseMatrix & A, SparseMatrix & C)
-{
-    // This is quite expensive...
-    mult(Transposed, A, NoTransposed, A, C);
-}
diff --git a/thirdparty/thekla_atlas/nvmath/Sparse.h b/thirdparty/thekla_atlas/nvmath/Sparse.h
deleted file mode 100644
index 6b03ed51f3..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Sparse.h
+++ /dev/null
@@ -1,204 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_SPARSE_H
-#define NV_MATH_SPARSE_H
-
-#include "nvmath.h"
-#include "nvcore/Array.h"
-
-
-// Full and sparse vector and matrix classes. BLAS subset.
-
-namespace nv
-{
-    class FullVector;
-    class FullMatrix;
-    class SparseMatrix;
-
-
-    /// Fixed size vector class.
-    class FullVector
-    {
-    public:
-
-        FullVector(uint dim);
-        FullVector(const FullVector & v);
-
-        const FullVector & operator=(const FullVector & v);
-
-        uint dimension() const { return m_array.count(); }
-
-        const float & operator[]( uint index ) const { return m_array[index]; }
-        float & operator[] ( uint index ) { return m_array[index]; }
-
-        void fill(float f);
-
-        void operator+= (const FullVector & v);
-        void operator-= (const FullVector & v);
-        void operator*= (const FullVector & v);
-
-        void operator+= (float f);
-        void operator-= (float f);
-        void operator*= (float f);
-
-
-    private:
-
-        Array<float> m_array;
-
-    };
-
-    // Pseudo-BLAS interface.
-    NVMATH_API void saxpy(float a, const FullVector & x, FullVector & y); // y = a * x + y
-    NVMATH_API void copy(const FullVector & x, FullVector & y);
-    NVMATH_API void scal(float a, FullVector & x);
-    NVMATH_API float dot(const FullVector & x, const FullVector & y);
-
-
-    enum Transpose
-    {
-        NoTransposed = 0,
-        Transposed = 1
-    };
-
-    /// Full matrix class.
-    class FullMatrix
-    {
-    public:
-
-        FullMatrix(uint d);
-        FullMatrix(uint w, uint h);
-        FullMatrix(const FullMatrix & m);
-
-        const FullMatrix & operator=(const FullMatrix & m);
-
-        uint width() const { return m_width; }
-        uint height() const { return m_height; }
-        bool isSquare() const { return m_width == m_height; }
-
-        float getCoefficient(uint x, uint y) const;
-
-        void setCoefficient(uint x, uint y, float f);
-        void addCoefficient(uint x, uint y, float f);
-        void mulCoefficient(uint x, uint y, float f);
-
-        float dotRow(uint y, const FullVector & v) const;
-        void madRow(uint y, float alpha, FullVector & v) const;
-
-    protected:
-
-        bool isValid() const {
-            return m_array.size() == (m_width * m_height);
-        }
-
-    private:
-
-        const uint m_width;
-        const uint m_height;
-        Array<float> m_array;
-
-    };
-
-    NVMATH_API void mult(const FullMatrix & M, const FullVector & x, FullVector & y);
-    NVMATH_API void mult(Transpose TM, const FullMatrix & M, const FullVector & x, FullVector & y);
-
-    // y = alpha*A*x + beta*y
-    NVMATH_API void sgemv(float alpha, const FullMatrix & A, const FullVector & x, float beta, FullVector & y);
-    NVMATH_API void sgemv(float alpha, Transpose TA, const FullMatrix & A, const FullVector & x, float beta, FullVector & y);
-
-    NVMATH_API void mult(const FullMatrix & A, const FullMatrix & B, FullMatrix & C);
-    NVMATH_API void mult(Transpose TA, const FullMatrix & A, Transpose TB, const FullMatrix & B, FullMatrix & C);
-
-    // C = alpha*A*B + beta*C
-    NVMATH_API void sgemm(float alpha, const FullMatrix & A, const FullMatrix & B, float beta, FullMatrix & C);
-    NVMATH_API void sgemm(float alpha, Transpose TA, const FullMatrix & A, Transpose TB, const FullMatrix & B, float beta, FullMatrix & C);
-
-
-    /**
-    * Sparse matrix class. The matrix is assumed to be sparse and to have
-    * very few non-zero elements, for this reason it's stored in indexed 
-    * format. To multiply column vectors efficiently, the matrix stores 
-    * the elements in indexed-column order, there is a list of indexed 
-    * elements for each row of the matrix. As with the FullVector the 
-    * dimension of the matrix is constant.
-    **/
-    class SparseMatrix
-    {
-        friend class FullMatrix;
-    public:
-
-        // An element of the sparse array.
-        struct Coefficient {
-            uint x;  // column
-            float v; // value
-        };
-
-
-    public:
-
-        SparseMatrix(uint d);
-        SparseMatrix(uint w, uint h);
-        SparseMatrix(const SparseMatrix & m);
-
-        const SparseMatrix & operator=(const SparseMatrix & m);
-
-
-        uint width() const { return m_width; }
-        uint height() const { return m_array.count(); }
-        bool isSquare() const { return width() == height(); }
-
-        float getCoefficient(uint x, uint y) const; // x is column, y is row
-
-        void setCoefficient(uint x, uint y, float f);
-        void addCoefficient(uint x, uint y, float f);
-        void mulCoefficient(uint x, uint y, float f);
-
-        float sumRow(uint y) const;
-        float dotRow(uint y, const FullVector & v) const;
-        void madRow(uint y, float alpha, FullVector & v) const;
-
-        void clearRow(uint y);
-        void scaleRow(uint y, float f);
-        void normalizeRow(uint y);
-
-        void clearColumn(uint x);
-        void scaleColumn(uint x, float f);
-
-        const Array<Coefficient> & getRow(uint y) const;
-
-        bool isSymmetric() const;
-
-    private:
-
-        /// Number of columns.
-        const uint m_width;
-
-        /// Array of matrix elements.
-        Array< Array<Coefficient> > m_array;
-
-    };
-
-    NVMATH_API void transpose(const SparseMatrix & A, SparseMatrix & B);
-
-    NVMATH_API void mult(const SparseMatrix & M, const FullVector & x, FullVector & y);
-    NVMATH_API void mult(Transpose TM, const SparseMatrix & M, const FullVector & x, FullVector & y);
-
-    // y = alpha*A*x + beta*y
-    NVMATH_API void sgemv(float alpha, const SparseMatrix & A, const FullVector & x, float beta, FullVector & y);
-    NVMATH_API void sgemv(float alpha, Transpose TA, const SparseMatrix & A, const FullVector & x, float beta, FullVector & y);
-
-    NVMATH_API void mult(const SparseMatrix & A, const SparseMatrix & B, SparseMatrix & C);
-    NVMATH_API void mult(Transpose TA, const SparseMatrix & A, Transpose TB, const SparseMatrix & B, SparseMatrix & C);
-
-    // C = alpha*A*B + beta*C
-    NVMATH_API void sgemm(float alpha, const SparseMatrix & A, const SparseMatrix & B, float beta, SparseMatrix & C);
-    NVMATH_API void sgemm(float alpha, Transpose TA, const SparseMatrix & A, Transpose TB, const SparseMatrix & B, float beta, SparseMatrix & C);
-
-    // C = At * A
-    NVMATH_API void sqm(const SparseMatrix & A, SparseMatrix & C);
-
-} // nv namespace
-
-
-#endif // NV_MATH_SPARSE_H
diff --git a/thirdparty/thekla_atlas/nvmath/Sphere.cpp b/thirdparty/thekla_atlas/nvmath/Sphere.cpp
deleted file mode 100644
index e0c1ad652c..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Sphere.cpp
+++ /dev/null
@@ -1,431 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "Sphere.h"
-#include "Vector.inl"
-#include "Box.inl"
-
-#include <float.h> // FLT_MAX
-
-using namespace nv;
-
-const float radiusEpsilon = 1e-4f;
-
-Sphere::Sphere(Vector3::Arg p0, Vector3::Arg p1)
-{
-    if (p0 == p1) *this = Sphere(p0);
-    else {
-        center = (p0 + p1) * 0.5f;
-        radius = length(p0 - center) + radiusEpsilon;
-
-        float d0 = length(p0 - center);
-        float d1 = length(p1 - center);
-        nvDebugCheck(equal(d0, radius - radiusEpsilon));
-        nvDebugCheck(equal(d1, radius - radiusEpsilon));
-    }
-}
-
-Sphere::Sphere(Vector3::Arg p0, Vector3::Arg p1, Vector3::Arg p2)
-{
-    if (p0 == p1 || p0 == p2) *this = Sphere(p1, p2);
-    else if (p1 == p2) *this = Sphere(p0, p2);
-    else {
-        Vector3 a = p1 - p0;
-        Vector3 b = p2 - p0;
-        Vector3 c = cross(a, b);
-
-        float denominator = 2.0f * lengthSquared(c);
-        
-        if (!isZero(denominator)) {
-	        Vector3 d = (lengthSquared(b) * cross(c, a) + lengthSquared(a) * cross(b, c)) / denominator;
-
-	        center = p0 + d;
-	        radius = length(d) + radiusEpsilon;
-
-            float d0 = length(p0 - center);
-            float d1 = length(p1 - center);
-            float d2 = length(p2 - center);
-            nvDebugCheck(equal(d0, radius - radiusEpsilon));
-            nvDebugCheck(equal(d1, radius - radiusEpsilon));
-            nvDebugCheck(equal(d2, radius - radiusEpsilon));
-        }
-        else {
-            // @@ This is a specialization of the code below, but really, the only thing we need to do here is to find the two most distant points.
-            // Compute all possible spheres, invalidate those that do not contain the four points, keep the smallest.
-            Sphere s0(p1, p2);
-            float d0 = distanceSquared(s0, p0);
-            if (d0 > 0) s0.radius = NV_FLOAT_MAX;
-
-            Sphere s1(p0, p2);
-            float d1 = distanceSquared(s1, p1);
-            if (d1 > 0) s1.radius = NV_FLOAT_MAX;
-
-            Sphere s2(p0, p1);
-            float d2 = distanceSquared(s2, p2);
-            if (d2 > 0) s1.radius = NV_FLOAT_MAX;
-
-            if (s0.radius < s1.radius && s0.radius < s2.radius) {
-                center = s0.center;
-                radius = s0.radius;
-            }
-            else if (s1.radius < s2.radius) {
-                center = s1.center;
-                radius = s1.radius;
-            }
-            else {
-                center = s2.center;
-                radius = s2.radius;
-            }
-        }
-    }
-}
-
-Sphere::Sphere(Vector3::Arg p0, Vector3::Arg p1, Vector3::Arg p2, Vector3::Arg p3)
-{
-    if (p0 == p1 || p0 == p2 || p0 == p3) *this = Sphere(p1, p2, p3);
-    else if (p1 == p2 || p1 == p3) *this = Sphere(p0, p2, p3);
-    else if (p2 == p3) *this = Sphere(p0, p1, p2);
-    else {
-        // @@ This only works if the points are not coplanar!
-	    Vector3 a = p1 - p0;
-	    Vector3 b = p2 - p0;
-	    Vector3 c = p3 - p0;
-
-        float denominator = 2.0f * dot(c, cross(a, b)); // triple product.
-
-        if (!isZero(denominator)) {
-	        Vector3 d = (lengthSquared(c) * cross(a, b) + lengthSquared(b) * cross(c, a) + lengthSquared(a) * cross(b, c)) / denominator;
-
-	        center = p0 + d;
-            radius = length(d) + radiusEpsilon;
-
-            float d0 = length(p0 - center);
-            float d1 = length(p1 - center);
-            float d2 = length(p2 - center);
-            float d3 = length(p3 - center);
-            nvDebugCheck(equal(d0, radius - radiusEpsilon));
-            nvDebugCheck(equal(d1, radius - radiusEpsilon));
-            nvDebugCheck(equal(d2, radius - radiusEpsilon));
-            nvDebugCheck(equal(d3, radius - radiusEpsilon));
-        }
-        else {
-            // Compute all possible spheres, invalidate those that do not contain the four points, keep the smallest.
-            Sphere s0(p1, p2, p3);
-            float d0 = distanceSquared(s0, p0);
-            if (d0 > 0) s0.radius = NV_FLOAT_MAX;
-
-            Sphere s1(p0, p2, p3);
-            float d1 = distanceSquared(s1, p1);
-            if (d1 > 0) s1.radius = NV_FLOAT_MAX;
-
-            Sphere s2(p0, p1, p3);
-            float d2 = distanceSquared(s2, p2);
-            if (d2 > 0) s2.radius = NV_FLOAT_MAX;
-
-            Sphere s3(p0, p1, p2);
-            float d3 = distanceSquared(s3, p3);
-            if (d3 > 0) s2.radius = NV_FLOAT_MAX;
-
-            if (s0.radius < s1.radius && s0.radius < s2.radius && s0.radius < s3.radius) {
-                center = s0.center;
-                radius = s0.radius;
-            }
-            else if (s1.radius < s2.radius && s1.radius < s3.radius) {
-                center = s1.center;
-                radius = s1.radius;
-            }
-            else if (s1.radius < s3.radius) {
-                center = s2.center;
-                radius = s2.radius;
-            }
-            else {
-                center = s3.center;
-                radius = s3.radius;
-            }
-        }
-    }
-}
-
-
-float nv::distanceSquared(const Sphere & sphere, const Vector3 & point)
-{
-    return lengthSquared(sphere.center - point) - square(sphere.radius);
-}
-
-
-
-// Implementation of "MiniBall" based on:
-// http://www.flipcode.com/archives/Smallest_Enclosing_Spheres.shtml
-
-static Sphere recurseMini(const Vector3 *P[], uint p, uint b = 0)
-{
-	Sphere MB;
-
-	switch(b)
-	{
-	case 0:
-		MB = Sphere(*P[0]);
-		break;
-	case 1:
-		MB = Sphere(*P[-1]);
-		break;
-	case 2:
-		MB = Sphere(*P[-1], *P[-2]);
-		break;
-	case 3:
-		MB = Sphere(*P[-1], *P[-2], *P[-3]);
-		break;
-	case 4:
-		MB = Sphere(*P[-1], *P[-2], *P[-3], *P[-4]);
-		return MB;
-	}
-
-	for (uint i = 0; i < p; i++)
-    {
-        if (distanceSquared(MB, *P[i]) > 0)   // Signed square distance to sphere
-		{
-			for (uint j = i; j > 0; j--)
-			{
-                swap(P[j], P[j-1]);
-			}
-
-			MB = recurseMini(P + 1, i, b + 1);
-		}
-    }
-
-	return MB;
-}
-
-static bool allInside(const Sphere & sphere, const Vector3 * pointArray, const uint pointCount) {
-    for (uint i = 0; i < pointCount; i++) {
-        if (distanceSquared(sphere, pointArray[i]) >= NV_EPSILON) {
-            return false;
-        }
-    }
-    return true;
-}
-
-
-Sphere nv::miniBall(const Vector3 * pointArray, const uint pointCount)
-{
-    nvDebugCheck(pointArray != NULL);
-    nvDebugCheck(pointCount > 0);
-
-	const Vector3 **L = new const Vector3*[pointCount];
-
-    for (uint i = 0; i < pointCount; i++) {
-		L[i] = &pointArray[i];
-    }
-
-	Sphere sphere = recurseMini(L, pointCount);
-
-	delete [] L;
-
-    nvDebugCheck(allInside(sphere, pointArray, pointCount));
-
-	return sphere;
-}
-
-
-// Approximate bounding sphere, based on "An Efficient Bounding Sphere" by Jack Ritter, from "Graphics Gems"
-Sphere nv::approximateSphere_Ritter(const Vector3 * pointArray, const uint pointCount)
-{
-    nvDebugCheck(pointArray != NULL);
-    nvDebugCheck(pointCount > 0);
-
-    Vector3 xmin, xmax, ymin, ymax, zmin, zmax;
-
-    xmin = xmax = ymin = ymax = zmin = zmax = pointArray[0];
-
-    // FIRST PASS: find 6 minima/maxima points
-    xmin.x = ymin.y = zmin.z = FLT_MAX;
-    xmax.x = ymax.y = zmax.z = -FLT_MAX;
-
-    for (uint i = 0; i < pointCount; i++)
-	{
-        const Vector3 & p = pointArray[i];
-        if (p.x < xmin.x) xmin = p;
-	    if (p.x > xmax.x) xmax = p;
-	    if (p.y < ymin.y) ymin = p;
-	    if (p.y > ymax.y) ymax = p;
-	    if (p.z < zmin.z) zmin = p;
-	    if (p.z > zmax.z) zmax = p;
-	}
-
-    float xspan = lengthSquared(xmax - xmin);
-    float yspan = lengthSquared(ymax - ymin);
-    float zspan = lengthSquared(zmax - zmin);
-
-    // Set points dia1 & dia2 to the maximally separated pair.
-    Vector3 dia1 = xmin; 
-    Vector3 dia2 = xmax;
-    float maxspan = xspan;
-    if (yspan > maxspan) {
-	    maxspan = yspan;
-	    dia1 = ymin;
-        dia2 = ymax;
-	}
-    if (zspan > maxspan) {
-	    dia1 = zmin;
-        dia2 = zmax;
-	}
-
-    // |dia1-dia2| is a diameter of initial sphere
-    
-    // calc initial center
-    Sphere sphere;
-    sphere.center = (dia1 + dia2) / 2.0f;
-
-    // calculate initial radius**2 and radius
-    float rad_sq = lengthSquared(dia2 - sphere.center);
-    sphere.radius = sqrtf(rad_sq);
-
-
-    // SECOND PASS: increment current sphere
-    for (uint i = 0; i < pointCount; i++)
-	{
-        const Vector3 & p = pointArray[i];
-
-        float old_to_p_sq = lengthSquared(p - sphere.center);
-
-	    if (old_to_p_sq > rad_sq) 	// do r**2 test first
-		{ 	
-            // this point is outside of current sphere
-		    float old_to_p = sqrtf(old_to_p_sq);
-
-		    // calc radius of new sphere
-            sphere.radius = (sphere.radius + old_to_p) / 2.0f;
-		    rad_sq = sphere.radius * sphere.radius; 	// for next r**2 compare
-    		
-            float old_to_new = old_to_p - sphere.radius;
-
-		    // calc center of new sphere
-            sphere.center = (sphere.radius * sphere.center + old_to_new * p) / old_to_p;
-		}	
-	}
-
-    nvDebugCheck(allInside(sphere, pointArray, pointCount));
-
-    return sphere;
-}
-
-
-static float computeSphereRadius(const Vector3 & center, const Vector3 * pointArray, const uint pointCount) {
-
-    float maxRadius2 = 0;
-
-    for (uint i = 0; i < pointCount; i++)
-	{
-        const Vector3 & p = pointArray[i];
-
-        float r2 = lengthSquared(center - p);
-
-        if (r2 > maxRadius2) {
-            maxRadius2 = r2;
-        }
-    }
-
-    return sqrtf(maxRadius2) + radiusEpsilon;
-}
-
-
-Sphere nv::approximateSphere_AABB(const Vector3 * pointArray, const uint pointCount)
-{
-    nvDebugCheck(pointArray != NULL);
-    nvDebugCheck(pointCount > 0);
-
-    Box box;
-    box.clearBounds();
-
-    for (uint i = 0; i < pointCount; i++) {
-        box.addPointToBounds(pointArray[i]);
-    }
-
-    Sphere sphere;
-    sphere.center = box.center();
-    sphere.radius = computeSphereRadius(sphere.center, pointArray, pointCount);
-
-    nvDebugCheck(allInside(sphere, pointArray, pointCount));
-
-    return sphere;
-}
-
-
-static void computeExtremalPoints(const Vector3 & dir, const Vector3 * pointArray, uint pointCount, Vector3 * minPoint, Vector3 * maxPoint) {
-    nvDebugCheck(pointCount > 0);
-
-    uint mini = 0;
-    uint maxi = 0;
-    float minDist = FLT_MAX;
-    float maxDist = -FLT_MAX;
-
-    for (uint i = 0; i < pointCount; i++) {
-        float d = dot(dir, pointArray[i]);
-
-        if (d < minDist) {
-            minDist = d;
-            mini = i;
-        }
-        if (d > maxDist) {
-            maxDist = d;
-            maxi = i;
-        }
-    }
-    nvDebugCheck(minDist != FLT_MAX);
-    nvDebugCheck(maxDist != -FLT_MAX);
-
-    *minPoint = pointArray[mini];
-    *maxPoint = pointArray[maxi];
-}
-
-// EPOS algorithm based on:
-// http://www.ep.liu.se/ecp/034/009/ecp083409.pdf
-Sphere nv::approximateSphere_EPOS6(const Vector3 * pointArray, uint pointCount)
-{
-    nvDebugCheck(pointArray != NULL);
-    nvDebugCheck(pointCount > 0);
-
-    Vector3 extremalPoints[6];
-
-    // Compute 6 extremal points.
-    computeExtremalPoints(Vector3(1, 0, 0), pointArray, pointCount, extremalPoints+0, extremalPoints+1);
-    computeExtremalPoints(Vector3(0, 1, 0), pointArray, pointCount, extremalPoints+2, extremalPoints+3);
-    computeExtremalPoints(Vector3(0, 0, 1), pointArray, pointCount, extremalPoints+4, extremalPoints+5);
-
-    Sphere sphere = miniBall(extremalPoints, 6);
-    sphere.radius = computeSphereRadius(sphere.center, pointArray, pointCount);
-
-    nvDebugCheck(allInside(sphere, pointArray, pointCount));
-
-    return sphere;
-}
-
-Sphere nv::approximateSphere_EPOS14(const Vector3 * pointArray, uint pointCount)
-{
-    nvDebugCheck(pointArray != NULL);
-    nvDebugCheck(pointCount > 0);
-
-    Vector3 extremalPoints[14];
-
-    // Compute 14 extremal points.
-    computeExtremalPoints(Vector3(1, 0, 0), pointArray, pointCount, extremalPoints+0, extremalPoints+1);
-    computeExtremalPoints(Vector3(0, 1, 0), pointArray, pointCount, extremalPoints+2, extremalPoints+3);
-    computeExtremalPoints(Vector3(0, 0, 1), pointArray, pointCount, extremalPoints+4, extremalPoints+5);
-
-    float d = sqrtf(1.0f/3.0f);
-
-    computeExtremalPoints(Vector3(d, d, d), pointArray, pointCount, extremalPoints+6, extremalPoints+7);
-    computeExtremalPoints(Vector3(-d, d, d), pointArray, pointCount, extremalPoints+8, extremalPoints+9);
-    computeExtremalPoints(Vector3(-d, -d, d), pointArray, pointCount, extremalPoints+10, extremalPoints+11);
-    computeExtremalPoints(Vector3(d, -d, d), pointArray, pointCount, extremalPoints+12, extremalPoints+13);
-
-
-    Sphere sphere = miniBall(extremalPoints, 14);
-    sphere.radius = computeSphereRadius(sphere.center, pointArray, pointCount);
-
-    nvDebugCheck(allInside(sphere, pointArray, pointCount));
-
-    return sphere;
-}
-
-
-
diff --git a/thirdparty/thekla_atlas/nvmath/Sphere.h b/thirdparty/thekla_atlas/nvmath/Sphere.h
deleted file mode 100644
index 300731af44..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Sphere.h
+++ /dev/null
@@ -1,43 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_SPHERE_H
-#define NV_MATH_SPHERE_H
-
-#include "Vector.h"
-
-namespace nv
-{
-    
-    class Sphere
-    {
-    public:
-        Sphere() {}
-        Sphere(Vector3::Arg center, float radius) : center(center), radius(radius) {}
-
-        Sphere(Vector3::Arg center) : center(center), radius(0.0f) {}
-        Sphere(Vector3::Arg p0, Vector3::Arg p1);
-        Sphere(Vector3::Arg p0, Vector3::Arg p1, Vector3::Arg p2);
-        Sphere(Vector3::Arg p0, Vector3::Arg p1, Vector3::Arg p2, Vector3::Arg p3);
-
-        Vector3 center;
-        float radius;
-    };
-
-    // Returns negative values if point is inside.
-    float distanceSquared(const Sphere & sphere, const Vector3 &point);
-
-
-    // Welz's algorithm. Fairly slow, recursive implementation uses large stack.
-    Sphere miniBall(const Vector3 * pointArray, uint pointCount);
-
-    Sphere approximateSphere_Ritter(const Vector3 * pointArray, uint pointCount);
-    Sphere approximateSphere_AABB(const Vector3 * pointArray, uint pointCount);
-    Sphere approximateSphere_EPOS6(const Vector3 * pointArray, uint pointCount);
-    Sphere approximateSphere_EPOS14(const Vector3 * pointArray, uint pointCount);
-
-
-} // nv namespace
-
-
-#endif // NV_MATH_SPHERE_H
diff --git a/thirdparty/thekla_atlas/nvmath/TypeSerialization.cpp b/thirdparty/thekla_atlas/nvmath/TypeSerialization.cpp
deleted file mode 100644
index 72fa678f47..0000000000
--- a/thirdparty/thekla_atlas/nvmath/TypeSerialization.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "TypeSerialization.h"
-
-#include "nvcore/Stream.h"
-
-#include "nvmath/Vector.h"
-#include "nvmath/Matrix.h"
-#include "nvmath/Quaternion.h"
-#include "nvmath/Basis.h"
-#include "nvmath/Box.h"
-#include "nvmath/Plane.inl"
-
-using namespace nv;
-
-Stream & nv::operator<< (Stream & s, Vector2 & v)
-{
-    return s << v.x << v.y;
-}
-
-Stream & nv::operator<< (Stream & s, Vector3 & v)
-{
-    return s << v.x << v.y << v.z;
-}
-
-Stream & nv::operator<< (Stream & s, Vector4 & v)
-{
-    return s << v.x << v.y << v.z << v.w;
-}
-
-Stream & nv::operator<< (Stream & s, Matrix & m)
-{
-    return s;
-}
-
-Stream & nv::operator<< (Stream & s, Quaternion & q)
-{
-    return s << q.x << q.y << q.z << q.w;
-}
-
-Stream & nv::operator<< (Stream & s, Basis & basis)
-{
-    return s << basis.tangent << basis.bitangent << basis.normal;
-}
-
-Stream & nv::operator<< (Stream & s, Box & box)
-{
-    return s << box.minCorner << box.maxCorner;
-}
-
-Stream & nv::operator<< (Stream & s, Plane & plane)
-{
-    return s << plane.v;
-}
diff --git a/thirdparty/thekla_atlas/nvmath/TypeSerialization.h b/thirdparty/thekla_atlas/nvmath/TypeSerialization.h
deleted file mode 100644
index 32d6de827e..0000000000
--- a/thirdparty/thekla_atlas/nvmath/TypeSerialization.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MATH_TYPESERIALIZATION_H
-#define NV_MATH_TYPESERIALIZATION_H
-
-#include "nvmath.h"
-
-namespace nv
-{
-    class Stream;
-
-    class Vector2;
-    class Vector3;
-    class Vector4;
-
-    class Matrix;
-    class Quaternion;
-    class Basis;
-    class Box;
-    class Plane;
-
-    NVMATH_API Stream & operator<< (Stream & s, Vector2 & obj);
-    NVMATH_API Stream & operator<< (Stream & s, Vector3 & obj);
-    NVMATH_API Stream & operator<< (Stream & s, Vector4 & obj);
-
-    NVMATH_API Stream & operator<< (Stream & s, Matrix & obj);
-    NVMATH_API Stream & operator<< (Stream & s, Quaternion & obj);
-    NVMATH_API Stream & operator<< (Stream & s, Basis & obj);
-    NVMATH_API Stream & operator<< (Stream & s, Box & obj);
-    NVMATH_API Stream & operator<< (Stream & s, Plane & obj);
-
-} // nv namespace
-
-#endif // NV_MATH_TYPESERIALIZATION_H
diff --git a/thirdparty/thekla_atlas/nvmath/Vector.cpp b/thirdparty/thekla_atlas/nvmath/Vector.cpp
deleted file mode 100644
index 9122a1b0e9..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Vector.cpp
+++ /dev/null
@@ -1,4 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "Vector.h"
-#include "Vector.inl"
diff --git a/thirdparty/thekla_atlas/nvmath/Vector.h b/thirdparty/thekla_atlas/nvmath/Vector.h
deleted file mode 100644
index ad18672a8a..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Vector.h
+++ /dev/null
@@ -1,149 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_VECTOR_H
-#define NV_MATH_VECTOR_H
-
-#include "nvmath.h"
-
-namespace nv
-{
-    class NVMATH_CLASS Vector2
-    {
-    public:
-        typedef Vector2 const & Arg;
-
-        Vector2();
-        explicit Vector2(float f);
-        Vector2(float x, float y);
-        Vector2(Vector2::Arg v);
-
-        //template <typename T> explicit Vector2(const T & v) : x(v.x), y(v.y) {}
-        //template <typename T> operator T() const { return T(x, y); }
-
-        const Vector2 & operator=(Vector2::Arg v);
-
-        const float * ptr() const;
-
-        void set(float x, float y);
-
-        Vector2 operator-() const;
-        void operator+=(Vector2::Arg v);
-        void operator-=(Vector2::Arg v);
-        void operator*=(float s);
-        void operator*=(Vector2::Arg v);
-
-        friend bool operator==(Vector2::Arg a, Vector2::Arg b);
-        friend bool operator!=(Vector2::Arg a, Vector2::Arg b);
-
-        union {
-            struct {
-                float x, y;
-            };
-            float component[2];
-        };
-    };
-
-    class NVMATH_CLASS Vector3
-    {
-    public:
-        typedef Vector3 const & Arg;
-
-        Vector3();
-        explicit Vector3(float x);
-        //explicit Vector3(int x) : x(float(x)), y(float(x)), z(float(x)) {}
-        Vector3(float x, float y, float z);
-        Vector3(Vector2::Arg v, float z);
-        Vector3(Vector3::Arg v);
-
-        //template <typename T> explicit Vector3(const T & v) : x(v.x), y(v.y), z(v.z) {}
-        //template <typename T> operator T() const { return T(x, y, z); }
-
-        const Vector3 & operator=(Vector3::Arg v);
-
-        Vector2 xy() const;
-
-        const float * ptr() const;
-
-        void set(float x, float y, float z);
-
-        Vector3 operator-() const;
-        void operator+=(Vector3::Arg v);
-        void operator-=(Vector3::Arg v);
-        void operator*=(float s);
-        void operator/=(float s);
-        void operator*=(Vector3::Arg v);
-        void operator/=(Vector3::Arg v);
-
-        friend bool operator==(Vector3::Arg a, Vector3::Arg b);
-        friend bool operator!=(Vector3::Arg a, Vector3::Arg b);
-
-        union {
-            struct {
-                float x, y, z;
-            };
-            float component[3];
-        };
-    };
-
-    class NVMATH_CLASS Vector4
-    {
-    public:
-        typedef Vector4 const & Arg;
-
-        Vector4();
-        explicit Vector4(float x);
-        Vector4(float x, float y, float z, float w);
-        Vector4(Vector2::Arg v, float z, float w);
-        Vector4(Vector2::Arg v, Vector2::Arg u);
-        Vector4(Vector3::Arg v, float w);
-        Vector4(Vector4::Arg v);
-        //	Vector4(const Quaternion & v);
-
-        //template <typename T> explicit Vector4(const T & v) : x(v.x), y(v.y), z(v.z), w(v.w) {}
-        //template <typename T> operator T() const { return T(x, y, z, w); }
-
-        const Vector4 & operator=(Vector4::Arg v);
-
-        Vector2 xy() const;
-        Vector2 zw() const;
-        Vector3 xyz() const;
-
-        const float * ptr() const;
-
-        void set(float x, float y, float z, float w);
-
-        Vector4 operator-() const;
-        void operator+=(Vector4::Arg v);
-        void operator-=(Vector4::Arg v);
-        void operator*=(float s);
-        void operator/=(float s);
-        void operator*=(Vector4::Arg v);
-        void operator/=(Vector4::Arg v);
-
-        friend bool operator==(Vector4::Arg a, Vector4::Arg b);
-        friend bool operator!=(Vector4::Arg a, Vector4::Arg b);
-
-        union {
-            struct {
-                float x, y, z, w;
-            };
-            float component[4];
-        };
-    };
-
-} // nv namespace
-
-// If we had these functions, they would be ambiguous, the compiler would not know which one to pick:
-//template <typename T> Vector2 to(const T & v) { return Vector2(v.x, v.y); }
-//template <typename T> Vector3 to(const T & v) { return Vector3(v.x, v.y, v.z); }
-//template <typename T> Vector4 to(const T & v) { return Vector4(v.x, v.y, v.z, v.z); }
-
-// We could use a cast operator so that we could infer the expected type, but that doesn't work the same way in all compilers and produces horrible error messages.
-
-// Instead we simply have explicit casts:
-template <typename T> T to(const nv::Vector2 & v) { NV_COMPILER_CHECK(sizeof(T) == sizeof(nv::Vector2)); return T(v.x, v.y); }
-template <typename T> T to(const nv::Vector3 & v) { NV_COMPILER_CHECK(sizeof(T) == sizeof(nv::Vector3)); return T(v.x, v.y, v.z); }
-template <typename T> T to(const nv::Vector4 & v) { NV_COMPILER_CHECK(sizeof(T) == sizeof(nv::Vector4)); return T(v.x, v.y, v.z, v.w); }
-
-#endif // NV_MATH_VECTOR_H
diff --git a/thirdparty/thekla_atlas/nvmath/Vector.inl b/thirdparty/thekla_atlas/nvmath/Vector.inl
deleted file mode 100644
index bcaec7bf2a..0000000000
--- a/thirdparty/thekla_atlas/nvmath/Vector.inl
+++ /dev/null
@@ -1,919 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_VECTOR_INL
-#define NV_MATH_VECTOR_INL
-
-#include "Vector.h"
-#include "nvcore/Utils.h" // min, max
-#include "nvcore/Hash.h" // hash
-
-namespace nv
-{
-
-    // Helpers to convert vector types. Assume T has x,y members and 2 argument constructor.
-    //template <typename T> T to(Vector2::Arg v) { return T(v.x, v.y); }
-
-    // Helpers to convert vector types. Assume T has x,y,z members and 3 argument constructor.
-    //template <typename T> T to(Vector3::Arg v) { return T(v.x, v.y, v.z); }
-
-    // Helpers to convert vector types. Assume T has x,y,z members and 3 argument constructor.
-    //template <typename T> T to(Vector4::Arg v) { return T(v.x, v.y, v.z, v.w); }
-
-
-    // Vector2
-    inline Vector2::Vector2() {}
-    inline Vector2::Vector2(float f) : x(f), y(f) {}
-    inline Vector2::Vector2(float x, float y) : x(x), y(y) {}
-    inline Vector2::Vector2(Vector2::Arg v) : x(v.x), y(v.y) {}
-
-    inline const Vector2 & Vector2::operator=(Vector2::Arg v)
-    {
-        x = v.x;
-        y = v.y;
-        return *this;
-    }
-
-    inline const float * Vector2::ptr() const
-    {
-        return &x;
-    }
-
-    inline void Vector2::set(float x, float y)
-    {
-        this->x = x;
-        this->y = y;
-    }
-
-    inline Vector2 Vector2::operator-() const
-    {
-        return Vector2(-x, -y);
-    }
-
-    inline void Vector2::operator+=(Vector2::Arg v)
-    {
-        x += v.x;
-        y += v.y;
-    }
-
-    inline void Vector2::operator-=(Vector2::Arg v)
-    {
-        x -= v.x;
-        y -= v.y;
-    }
-
-    inline void Vector2::operator*=(float s)
-    {
-        x *= s;
-        y *= s;
-    }
-
-    inline void Vector2::operator*=(Vector2::Arg v)
-    {
-        x *= v.x;
-        y *= v.y;
-    }
-
-    inline bool operator==(Vector2::Arg a, Vector2::Arg b)
-    {
-        return a.x == b.x && a.y == b.y; 
-    }
-    inline bool operator!=(Vector2::Arg a, Vector2::Arg b)
-    {
-        return a.x != b.x || a.y != b.y; 
-    }
-
-
-    // Vector3
-    inline Vector3::Vector3() {}
-    inline Vector3::Vector3(float f) : x(f), y(f), z(f) {}
-    inline Vector3::Vector3(float x, float y, float z) : x(x), y(y), z(z) {}
-    inline Vector3::Vector3(Vector2::Arg v, float z) : x(v.x), y(v.y), z(z) {}
-    inline Vector3::Vector3(Vector3::Arg v) : x(v.x), y(v.y), z(v.z) {}
-
-    inline const Vector3 & Vector3::operator=(Vector3::Arg v)
-    {
-        x = v.x;
-        y = v.y;
-        z = v.z;
-        return *this;
-    }
-
-
-    inline Vector2 Vector3::xy() const
-    {
-        return Vector2(x, y);
-    }
-
-    inline const float * Vector3::ptr() const
-    {
-        return &x;
-    }
-
-    inline void Vector3::set(float x, float y, float z)
-    {
-        this->x = x;
-        this->y = y;
-        this->z = z;
-    }
-
-    inline Vector3 Vector3::operator-() const
-    {
-        return Vector3(-x, -y, -z);
-    }
-
-    inline void Vector3::operator+=(Vector3::Arg v)
-    {
-        x += v.x;
-        y += v.y;
-        z += v.z;
-    }
-
-    inline void Vector3::operator-=(Vector3::Arg v)
-    {
-        x -= v.x;
-        y -= v.y;
-        z -= v.z;
-    }
-
-    inline void Vector3::operator*=(float s)
-    {
-        x *= s;
-        y *= s;
-        z *= s;
-    }
-
-    inline void Vector3::operator/=(float s)
-    {
-        float is = 1.0f / s;
-        x *= is;
-        y *= is;
-        z *= is;
-    }
-
-    inline void Vector3::operator*=(Vector3::Arg v)
-    {
-        x *= v.x;
-        y *= v.y;
-        z *= v.z;
-    }
-
-    inline void Vector3::operator/=(Vector3::Arg v)
-    {
-        x /= v.x;
-        y /= v.y;
-        z /= v.z;
-    }
-
-    inline bool operator==(Vector3::Arg a, Vector3::Arg b)
-    {
-        return a.x == b.x && a.y == b.y && a.z == b.z; 
-    }
-    inline bool operator!=(Vector3::Arg a, Vector3::Arg b)
-    {
-        return a.x != b.x || a.y != b.y || a.z != b.z; 
-    }
-
-
-    // Vector4
-    inline Vector4::Vector4() {}
-    inline Vector4::Vector4(float f) : x(f), y(f), z(f), w(f) {}
-    inline Vector4::Vector4(float x, float y, float z, float w) : x(x), y(y), z(z), w(w) {}
-    inline Vector4::Vector4(Vector2::Arg v, float z, float w) : x(v.x), y(v.y), z(z), w(w) {}
-    inline Vector4::Vector4(Vector2::Arg v, Vector2::Arg u) : x(v.x), y(v.y), z(u.x), w(u.y) {}
-    inline Vector4::Vector4(Vector3::Arg v, float w) : x(v.x), y(v.y), z(v.z), w(w) {}
-    inline Vector4::Vector4(Vector4::Arg v) : x(v.x), y(v.y), z(v.z), w(v.w) {}
-
-    inline const Vector4 & Vector4::operator=(const Vector4 & v)
-    {
-        x = v.x;
-        y = v.y;
-        z = v.z;
-        w = v.w;
-        return *this;
-    }
-
-    inline Vector2 Vector4::xy() const
-    {
-        return Vector2(x, y);
-    }
-
-    inline Vector2 Vector4::zw() const
-    {
-        return Vector2(z, w);
-    }
-
-    inline Vector3 Vector4::xyz() const
-    {
-        return Vector3(x, y, z);
-    }
-
-    inline const float * Vector4::ptr() const
-    {
-        return &x;
-    }
-
-    inline void Vector4::set(float x, float y, float z, float w)
-    {
-        this->x = x;
-        this->y = y;
-        this->z = z;
-        this->w = w;
-    }
-
-    inline Vector4 Vector4::operator-() const
-    {
-        return Vector4(-x, -y, -z, -w);
-    }
-
-    inline void Vector4::operator+=(Vector4::Arg v)
-    {
-        x += v.x;
-        y += v.y;
-        z += v.z;
-        w += v.w;
-    }
-
-    inline void Vector4::operator-=(Vector4::Arg v)
-    {
-        x -= v.x;
-        y -= v.y;
-        z -= v.z;
-        w -= v.w;
-    }
-
-    inline void Vector4::operator*=(float s)
-    {
-        x *= s;
-        y *= s;
-        z *= s;
-        w *= s;
-    }
-
-    inline void Vector4::operator/=(float s)
-    {
-        x /= s;
-        y /= s;
-        z /= s;
-        w /= s;
-    }
-
-    inline void Vector4::operator*=(Vector4::Arg v)
-    {
-        x *= v.x;
-        y *= v.y;
-        z *= v.z;
-        w *= v.w;
-    }
-
-    inline void Vector4::operator/=(Vector4::Arg v)
-    {
-        x /= v.x;
-        y /= v.y;
-        z /= v.z;
-        w /= v.w;
-    }
-
-    inline bool operator==(Vector4::Arg a, Vector4::Arg b)
-    {
-        return a.x == b.x && a.y == b.y && a.z == b.z && a.w == b.w; 
-    }
-    inline bool operator!=(Vector4::Arg a, Vector4::Arg b)
-    {
-        return a.x != b.x || a.y != b.y || a.z != b.z || a.w != b.w; 
-    }
-
-
-
-    // Functions
-
-
-    // Vector2
-
-    inline Vector2 add(Vector2::Arg a, Vector2::Arg b)
-    {
-        return Vector2(a.x + b.x, a.y + b.y);
-    }
-    inline Vector2 operator+(Vector2::Arg a, Vector2::Arg b)
-    {
-        return add(a, b);
-    }
-
-    inline Vector2 sub(Vector2::Arg a, Vector2::Arg b)
-    {
-        return Vector2(a.x - b.x, a.y - b.y);
-    }
-    inline Vector2 operator-(Vector2::Arg a, Vector2::Arg b)
-    {
-        return sub(a, b);
-    }
-
-    inline Vector2 scale(Vector2::Arg v, float s)
-    {
-        return Vector2(v.x * s, v.y * s);
-    }
-
-    inline Vector2 scale(Vector2::Arg v, Vector2::Arg s)
-    {
-        return Vector2(v.x * s.x, v.y * s.y);
-    }
-
-    inline Vector2 operator*(Vector2::Arg v, float s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector2 operator*(Vector2::Arg v1, Vector2::Arg v2)
-    {
-        return Vector2(v1.x*v2.x, v1.y*v2.y);
-    }
-
-    inline Vector2 operator*(float s, Vector2::Arg v)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector2 operator/(Vector2::Arg v, float s)
-    {
-        return scale(v, 1.0f/s);
-    }
-
-    inline Vector2 lerp(Vector2::Arg v1, Vector2::Arg v2, float t)
-    {
-        const float s = 1.0f - t;
-        return Vector2(v1.x * s + t * v2.x, v1.y * s + t * v2.y);
-    }
-
-    inline float dot(Vector2::Arg a, Vector2::Arg b)
-    {
-        return a.x * b.x + a.y * b.y;
-    }
-
-    inline float lengthSquared(Vector2::Arg v)
-    {
-        return v.x * v.x + v.y * v.y;
-    }
-
-    inline float length(Vector2::Arg v)
-    {
-        return sqrtf(lengthSquared(v));
-    }
-
-    inline float distance(Vector2::Arg a, Vector2::Arg b)
-    {
-        return length(a - b);
-    }
-
-    inline float inverseLength(Vector2::Arg v)
-    {
-        return 1.0f / sqrtf(lengthSquared(v));
-    }
-
-    inline bool isNormalized(Vector2::Arg v, float epsilon = NV_NORMAL_EPSILON)
-    {
-        return equal(length(v), 1, epsilon);
-    }
-
-    inline Vector2 normalize(Vector2::Arg v, float epsilon = NV_EPSILON)
-    {
-        float l = length(v);
-        nvDebugCheck(!isZero(l, epsilon));
-        Vector2 n = scale(v, 1.0f / l);
-        nvDebugCheck(isNormalized(n));
-        return n;
-    }
-
-    inline Vector2 normalizeSafe(Vector2::Arg v, Vector2::Arg fallback, float epsilon = NV_EPSILON)
-    {
-        float l = length(v);
-        if (isZero(l, epsilon)) {
-            return fallback;
-        }
-        return scale(v, 1.0f / l);
-    }
-
-    // Safe, branchless normalization from Andy Firth. All error checking ommitted.
-    // http://altdevblogaday.com/2011/08/21/practical-flt-point-tricks/
-    inline Vector2 normalizeFast(Vector2::Arg v)
-    {
-        const float very_small_float = 1.0e-037f;
-        float l = very_small_float + length(v);
-        return scale(v, 1.0f / l);
-    }
-
-    inline bool equal(Vector2::Arg v1, Vector2::Arg v2, float epsilon = NV_EPSILON)
-    {
-        return equal(v1.x, v2.x, epsilon) && equal(v1.y, v2.y, epsilon);
-    }
-
-    inline Vector2 min(Vector2::Arg a, Vector2::Arg b)
-    {
-        return Vector2(min(a.x, b.x), min(a.y, b.y));
-    }
-
-    inline Vector2 max(Vector2::Arg a, Vector2::Arg b)
-    {
-        return Vector2(max(a.x, b.x), max(a.y, b.y));
-    }
-
-    inline Vector2 clamp(Vector2::Arg v, float min, float max)
-    {
-        return Vector2(clamp(v.x, min, max), clamp(v.y, min, max));
-    }
-
-    inline Vector2 saturate(Vector2::Arg v)
-    {
-        return Vector2(saturate(v.x), saturate(v.y));
-    }
-
-    inline bool isFinite(Vector2::Arg v)
-    {
-        return isFinite(v.x) && isFinite(v.y);
-    }
-
-    inline Vector2 validate(Vector2::Arg v, Vector2::Arg fallback = Vector2(0.0f))
-    {
-        if (!isFinite(v)) return fallback;
-        Vector2 vf = v;
-        nv::floatCleanup(vf.component, 2);
-        return vf;
-    }
-
-    // Note, this is the area scaled by 2!
-    inline float triangleArea(Vector2::Arg v0, Vector2::Arg v1)
-    {
-	    return (v0.x * v1.y - v0.y * v1.x); // * 0.5f;
-    }
-    inline float triangleArea(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c)
-    {
-        // IC: While it may be appealing to use the following expression:
-        //return (c.x * a.y + a.x * b.y + b.x * c.y - b.x * a.y - c.x * b.y - a.x * c.y); // * 0.5f;
-
-        // That's actually a terrible idea. Small triangles far from the origin can end up producing fairly large floating point 
-        // numbers and the results becomes very unstable and dependent on the order of the factors.
-
-        // Instead, it's preferable to subtract the vertices first, and multiply the resulting small values together. The result
-        // in this case is always much more accurate (as long as the triangle is small) and less dependent of the location of 
-        // the triangle.
-
-        //return ((a.x - c.x) * (b.y - c.y) - (a.y - c.y) * (b.x - c.x)); // * 0.5f;
-        return triangleArea(a-c, b-c);
-    }
-
-
-    template <>
-    inline uint hash(const Vector2 & v, uint h)
-    {
-        return sdbmFloatHash(v.component, 2, h);
-    }
-
-
-
-    // Vector3
-
-    inline Vector3 add(Vector3::Arg a, Vector3::Arg b)
-    {
-        return Vector3(a.x + b.x, a.y + b.y, a.z + b.z);
-    }
-    inline Vector3 add(Vector3::Arg a, float b)
-    {
-        return Vector3(a.x + b, a.y + b, a.z + b);
-    }
-    inline Vector3 operator+(Vector3::Arg a, Vector3::Arg b)
-    {
-        return add(a, b);
-    }
-    inline Vector3 operator+(Vector3::Arg a, float b)
-    {
-        return add(a, b);
-    }
-
-    inline Vector3 sub(Vector3::Arg a, Vector3::Arg b)
-    {
-        return Vector3(a.x - b.x, a.y - b.y, a.z - b.z);
-    }
-    inline Vector3 sub(Vector3::Arg a, float b)
-    {
-        return Vector3(a.x - b, a.y - b, a.z - b);
-    }
-    inline Vector3 operator-(Vector3::Arg a, Vector3::Arg b)
-    {
-        return sub(a, b);
-    }
-    inline Vector3 operator-(Vector3::Arg a, float b)
-    {
-        return sub(a, b);
-    }
-
-    inline Vector3 cross(Vector3::Arg a, Vector3::Arg b)
-    {
-        return Vector3(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x);
-    }
-
-    inline Vector3 scale(Vector3::Arg v, float s)
-    {
-        return Vector3(v.x * s, v.y * s, v.z * s);
-    }
-
-    inline Vector3 scale(Vector3::Arg v, Vector3::Arg s)
-    {
-        return Vector3(v.x * s.x, v.y * s.y, v.z * s.z);
-    }
-
-    inline Vector3 operator*(Vector3::Arg v, float s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector3 operator*(float s, Vector3::Arg v)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector3 operator*(Vector3::Arg v, Vector3::Arg s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector3 operator/(Vector3::Arg v, float s)
-    {
-        return scale(v, 1.0f/s);
-    }
-
-    /*inline Vector3 add_scaled(Vector3::Arg a, Vector3::Arg b, float s)
-    {
-        return Vector3(a.x + b.x * s, a.y + b.y * s, a.z + b.z * s);
-    }*/
-
-    inline Vector3 lerp(Vector3::Arg v1, Vector3::Arg v2, float t)
-    {
-        const float s = 1.0f - t;
-        return Vector3(v1.x * s + t * v2.x, v1.y * s + t * v2.y, v1.z * s + t * v2.z);
-    }
-
-    inline float dot(Vector3::Arg a, Vector3::Arg b)
-    {
-        return a.x * b.x + a.y * b.y + a.z * b.z;
-    }
-
-    inline float lengthSquared(Vector3::Arg v)
-    {
-        return v.x * v.x + v.y * v.y + v.z * v.z;
-    }
-
-    inline float length(Vector3::Arg v)
-    {
-        return sqrtf(lengthSquared(v));
-    }
-
-    inline float distance(Vector3::Arg a, Vector3::Arg b)
-    {
-        return length(a - b);
-    }
-
-    inline float distanceSquared(Vector3::Arg a, Vector3::Arg b)
-    {
-        return lengthSquared(a - b);
-    }
-
-    inline float inverseLength(Vector3::Arg v)
-    {
-        return 1.0f / sqrtf(lengthSquared(v));
-    }
-
-    inline bool isNormalized(Vector3::Arg v, float epsilon = NV_NORMAL_EPSILON)
-    {
-        return equal(length(v), 1, epsilon);
-    }
-
-    inline Vector3 normalize(Vector3::Arg v, float epsilon = NV_EPSILON)
-    {
-        float l = length(v);
-        nvDebugCheck(!isZero(l, epsilon));
-        Vector3 n = scale(v, 1.0f / l);
-        nvDebugCheck(isNormalized(n));
-        return n;
-    }
-
-    inline Vector3 normalizeSafe(Vector3::Arg v, Vector3::Arg fallback, float epsilon = NV_EPSILON)
-    {
-        float l = length(v);
-        if (isZero(l, epsilon)) {
-            return fallback;
-        }
-        return scale(v, 1.0f / l);
-    }
-
-    // Safe, branchless normalization from Andy Firth. All error checking ommitted.
-    // http://altdevblogaday.com/2011/08/21/practical-flt-point-tricks/
-    inline Vector3 normalizeFast(Vector3::Arg v)
-    {
-        const float very_small_float = 1.0e-037f;
-        float l = very_small_float + length(v);
-        return scale(v, 1.0f / l);
-    }
-
-    inline bool equal(Vector3::Arg v1, Vector3::Arg v2, float epsilon = NV_EPSILON)
-    {
-        return equal(v1.x, v2.x, epsilon) && equal(v1.y, v2.y, epsilon) && equal(v1.z, v2.z, epsilon);
-    }
-
-    inline Vector3 min(Vector3::Arg a, Vector3::Arg b)
-    {
-        return Vector3(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z));
-    }
-
-    inline Vector3 max(Vector3::Arg a, Vector3::Arg b)
-    {
-        return Vector3(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z));
-    }
-
-    inline Vector3 clamp(Vector3::Arg v, float min, float max)
-    {
-        return Vector3(clamp(v.x, min, max), clamp(v.y, min, max), clamp(v.z, min, max));
-    }
-
-    inline Vector3 saturate(Vector3::Arg v)
-    {
-        return Vector3(saturate(v.x), saturate(v.y), saturate(v.z));
-    }
-
-    inline Vector3 floor(Vector3::Arg v)
-    {
-        return Vector3(floorf(v.x), floorf(v.y), floorf(v.z));
-    }
-
-    inline Vector3 ceil(Vector3::Arg v)
-    {
-        return Vector3(ceilf(v.x), ceilf(v.y), ceilf(v.z));
-    }
-
-    inline bool isFinite(Vector3::Arg v)
-    {
-        return isFinite(v.x) && isFinite(v.y) && isFinite(v.z);
-    }
-
-    inline Vector3 validate(Vector3::Arg v, Vector3::Arg fallback = Vector3(0.0f))
-    {
-        if (!isFinite(v)) return fallback;
-        Vector3 vf = v;
-        nv::floatCleanup(vf.component, 3);
-        return vf;
-    }
-
-    inline Vector3 reflect(Vector3::Arg v, Vector3::Arg n)
-    {
-	    return v - (2 * dot(v, n)) * n;
-    }
-
-    template <>
-    inline uint hash(const Vector3 & v, uint h)
-    {
-        return sdbmFloatHash(v.component, 3, h);
-    }
-
-
-    // Vector4
-
-    inline Vector4 add(Vector4::Arg a, Vector4::Arg b)
-    {
-        return Vector4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
-    }
-    inline Vector4 operator+(Vector4::Arg a, Vector4::Arg b)
-    {
-        return add(a, b);
-    }
-
-    inline Vector4 sub(Vector4::Arg a, Vector4::Arg b)
-    {
-        return Vector4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
-    }
-    inline Vector4 operator-(Vector4::Arg a, Vector4::Arg b)
-    {
-        return sub(a, b);
-    }
-
-    inline Vector4 scale(Vector4::Arg v, float s)
-    {
-        return Vector4(v.x * s, v.y * s, v.z * s, v.w * s);
-    }
-
-    inline Vector4 scale(Vector4::Arg v, Vector4::Arg s)
-    {
-        return Vector4(v.x * s.x, v.y * s.y, v.z * s.z, v.w * s.w);
-    }
-
-    inline Vector4 operator*(Vector4::Arg v, float s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector4 operator*(float s, Vector4::Arg v)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector4 operator*(Vector4::Arg v, Vector4::Arg s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector4 operator/(Vector4::Arg v, float s)
-    {
-        return scale(v, 1.0f/s);
-    }
-
-    /*inline Vector4 add_scaled(Vector4::Arg a, Vector4::Arg b, float s)
-    {
-        return Vector4(a.x + b.x * s, a.y + b.y * s, a.z + b.z * s, a.w + b.w * s);
-    }*/
-
-    inline Vector4 lerp(Vector4::Arg v1, Vector4::Arg v2, float t)
-    {
-        const float s = 1.0f - t;
-        return Vector4(v1.x * s + t * v2.x, v1.y * s + t * v2.y, v1.z * s + t * v2.z, v1.w * s + t * v2.w);
-    }
-
-    inline float dot(Vector4::Arg a, Vector4::Arg b)
-    {
-        return a.x * b.x + a.y * b.y + a.z * b.z + a.w * b.w;
-    }
-
-    inline float lengthSquared(Vector4::Arg v)
-    {
-        return v.x * v.x + v.y * v.y + v.z * v.z + v.w * v.w;
-    }
-
-    inline float length(Vector4::Arg v)
-    {
-        return sqrtf(lengthSquared(v));
-    }
-
-    inline float inverseLength(Vector4::Arg v)
-    {
-        return 1.0f / sqrtf(lengthSquared(v));
-    }
-
-    inline bool isNormalized(Vector4::Arg v, float epsilon = NV_NORMAL_EPSILON)
-    {
-        return equal(length(v), 1, epsilon);
-    }
-
-    inline Vector4 normalize(Vector4::Arg v, float epsilon = NV_EPSILON)
-    {
-        float l = length(v);
-        nvDebugCheck(!isZero(l, epsilon));
-        Vector4 n = scale(v, 1.0f / l);
-        nvDebugCheck(isNormalized(n));
-        return n;
-    }
-
-    inline Vector4 normalizeSafe(Vector4::Arg v, Vector4::Arg fallback, float epsilon = NV_EPSILON)
-    {
-        float l = length(v);
-        if (isZero(l, epsilon)) {
-            return fallback;
-        }
-        return scale(v, 1.0f / l);
-    }
-
-    // Safe, branchless normalization from Andy Firth. All error checking ommitted.
-    // http://altdevblogaday.com/2011/08/21/practical-flt-point-tricks/
-    inline Vector4 normalizeFast(Vector4::Arg v)
-    {
-        const float very_small_float = 1.0e-037f;
-        float l = very_small_float + length(v);
-        return scale(v, 1.0f / l);
-    }
-
-    inline bool equal(Vector4::Arg v1, Vector4::Arg v2, float epsilon = NV_EPSILON)
-    {
-        return equal(v1.x, v2.x, epsilon) && equal(v1.y, v2.y, epsilon) && equal(v1.z, v2.z, epsilon) && equal(v1.w, v2.w, epsilon);
-    }
-
-    inline Vector4 min(Vector4::Arg a, Vector4::Arg b)
-    {
-        return Vector4(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z), min(a.w, b.w));
-    }
-
-    inline Vector4 max(Vector4::Arg a, Vector4::Arg b)
-    {
-        return Vector4(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z), max(a.w, b.w));
-    }
-
-    inline Vector4 clamp(Vector4::Arg v, float min, float max)
-    {
-        return Vector4(clamp(v.x, min, max), clamp(v.y, min, max), clamp(v.z, min, max), clamp(v.w, min, max));
-    }
-
-    inline Vector4 saturate(Vector4::Arg v)
-    {
-        return Vector4(saturate(v.x), saturate(v.y), saturate(v.z), saturate(v.w));
-    }
-
-    inline bool isFinite(Vector4::Arg v)
-    {
-        return isFinite(v.x) && isFinite(v.y) && isFinite(v.z) && isFinite(v.w);
-    }
-
-    inline Vector4 validate(Vector4::Arg v, Vector4::Arg fallback = Vector4(0.0f))
-    {
-        if (!isFinite(v)) return fallback;
-        Vector4 vf = v;
-        nv::floatCleanup(vf.component, 4);
-        return vf;
-    }
-
-    template <>
-    inline uint hash(const Vector4 & v, uint h)
-    {
-        return sdbmFloatHash(v.component, 4, h);
-    }
-
-
-#if NV_OS_IOS // LLVM is not happy with implicit conversion of immediate constants to float
-
-    //int:
-
-    inline Vector2 scale(Vector2::Arg v, int s)
-    {
-        return Vector2(v.x * s, v.y * s);
-    }
-
-    inline Vector2 operator*(Vector2::Arg v, int s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector2 operator*(int s, Vector2::Arg v)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector2 operator/(Vector2::Arg v, int s)
-    {
-        return scale(v, 1.0f/s);
-    }
-
-    inline Vector3 scale(Vector3::Arg v, int s)
-    {
-        return Vector3(v.x * s, v.y * s, v.z * s);
-    }
-
-    inline Vector3 operator*(Vector3::Arg v, int s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector3 operator*(int s, Vector3::Arg v)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector3 operator/(Vector3::Arg v, int s)
-    {
-        return scale(v, 1.0f/s);
-    }
-
-    inline Vector4 scale(Vector4::Arg v, int s)
-    {
-        return Vector4(v.x * s, v.y * s, v.z * s, v.w * s);
-    }
-
-    inline Vector4 operator*(Vector4::Arg v, int s)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector4 operator*(int s, Vector4::Arg v)
-    {
-        return scale(v, s);
-    }
-
-    inline Vector4 operator/(Vector4::Arg v, int s)
-    {
-        return scale(v, 1.0f/s);
-    }
-
-    //double:
-
-    inline Vector3 operator*(Vector3::Arg v, double s)
-    {
-        return scale(v, (float)s);
-    }
-
-    inline Vector3 operator*(double s, Vector3::Arg v)
-    {
-        return scale(v, (float)s);
-    }
-
-    inline Vector3 operator/(Vector3::Arg v, double s)
-    {
-        return scale(v, 1.f/((float)s));
-    }    
-        
-#endif //NV_OS_IOS
-
-} // nv namespace
-
-#endif // NV_MATH_VECTOR_INL
diff --git a/thirdparty/thekla_atlas/nvmath/ftoi.h b/thirdparty/thekla_atlas/nvmath/ftoi.h
deleted file mode 100644
index 182c56d1c3..0000000000
--- a/thirdparty/thekla_atlas/nvmath/ftoi.h
+++ /dev/null
@@ -1,261 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_MATH_FTOI_H
-#define NV_MATH_FTOI_H
-
-#include "nvmath/nvmath.h"
-
-#include <math.h>
-
-namespace nv
-{
-    // Optimized float to int conversions. See:
-    // http://cbloomrants.blogspot.com/2009/01/01-17-09-float-to-int.html
-    // http://www.stereopsis.com/sree/fpu2006.html
-    // http://assemblyrequired.crashworks.org/2009/01/12/why-you-should-never-cast-floats-to-ints/
-    // http://chrishecker.com/Miscellaneous_Technical_Articles#Floating_Point
-
-
-    union DoubleAnd64 {
-        uint64    i;
-        double    d;
-    };
-
-    static const double floatutil_xs_doublemagic = (6755399441055744.0);                            // 2^52 * 1.5
-    static const double floatutil_xs_doublemagicdelta = (1.5e-8);                                   // almost .5f = .5f + 1e^(number of exp bit)
-    static const double floatutil_xs_doublemagicroundeps = (0.5f - floatutil_xs_doublemagicdelta);  // almost .5f = .5f - 1e^(number of exp bit)
-
-    NV_FORCEINLINE int ftoi_round_xs(double val, double magic) {
-#if 1
-        DoubleAnd64 dunion;
-        dunion.d = val + magic;
-        return (int32) dunion.i; // just cast to grab the bottom bits
-#else
-        val += magic;
-        return ((int*)&val)[0]; // @@ Assumes little endian.
-#endif
-    }
-
-    NV_FORCEINLINE int ftoi_round_xs(float val) {
-        return ftoi_round_xs(val, floatutil_xs_doublemagic);
-    }
-
-    NV_FORCEINLINE int ftoi_floor_xs(float val) {
-        return ftoi_round_xs(val - floatutil_xs_doublemagicroundeps, floatutil_xs_doublemagic);
-    }
-
-    NV_FORCEINLINE int ftoi_ceil_xs(float val) {
-        return ftoi_round_xs(val + floatutil_xs_doublemagicroundeps, floatutil_xs_doublemagic);
-    }
-
-    NV_FORCEINLINE int ftoi_trunc_xs(float val) {
-        return (val<0) ? ftoi_ceil_xs(val) : ftoi_floor_xs(val);
-    }
-
-// -- GODOT start --
-//#if NV_CPU_X86 || NV_CPU_X86_64
-#if NV_USE_SSE
-// -- GODOT end --
-
-    NV_FORCEINLINE int ftoi_round_sse(float f) {
-        return _mm_cvt_ss2si(_mm_set_ss(f));
-    }
-
-    NV_FORCEINLINE int ftoi_trunc_sse(float f) {
-      return _mm_cvtt_ss2si(_mm_set_ss(f));
-    }
-
-#endif
-
-
-
-#if NV_USE_SSE
-
-    NV_FORCEINLINE int ftoi_round(float val) {
-        return ftoi_round_sse(val);
-    }
-
-    NV_FORCEINLINE int ftoi_trunc(float f) {
-      return ftoi_trunc_sse(f);
-    }
-
-    // We can probably do better than this. See for example:
-    // http://dss.stephanierct.com/DevBlog/?p=8
-    NV_FORCEINLINE int ftoi_floor(float val) {
-        return ftoi_round(floorf(val));
-    }
-
-    NV_FORCEINLINE int ftoi_ceil(float val) {
-        return ftoi_round(ceilf(val));
-    }
-
-#else
-
-    // In theory this should work with any double floating point math implementation, but it appears that MSVC produces incorrect code
-    // when SSE2 is targeted and fast math is enabled (/arch:SSE2 & /fp:fast). These problems go away with /fp:precise, which is the default mode.
-
-    NV_FORCEINLINE int ftoi_round(float val) {
-        return ftoi_round_xs(val);
-    }
-
-    NV_FORCEINLINE int ftoi_floor(float val) {
-        return ftoi_floor_xs(val);
-    }
-
-    NV_FORCEINLINE int ftoi_ceil(float val) {
-        return ftoi_ceil_xs(val);
-    }
-
-    NV_FORCEINLINE int ftoi_trunc(float f) {
-      return ftoi_trunc_xs(f);
-    }
-
-#endif
-
-
-    inline void test_ftoi() {
-
-        // Round to nearest integer.
-        nvCheck(ftoi_round(0.1f) == 0);
-        nvCheck(ftoi_round(0.6f) == 1);
-        nvCheck(ftoi_round(-0.2f) == 0);
-        nvCheck(ftoi_round(-0.7f) == -1);
-        nvCheck(ftoi_round(10.1f) == 10);
-        nvCheck(ftoi_round(10.6f) == 11);
-        nvCheck(ftoi_round(-90.1f) == -90);
-        nvCheck(ftoi_round(-90.6f) == -91);
-
-        nvCheck(ftoi_round(0) == 0);
-        nvCheck(ftoi_round(1) == 1);
-        nvCheck(ftoi_round(-1) == -1);
-        
-        nvCheck(ftoi_round(0.5f) == 0);  // How are midpoints rounded? Bankers rounding.
-        nvCheck(ftoi_round(1.5f) == 2);
-        nvCheck(ftoi_round(2.5f) == 2);
-        nvCheck(ftoi_round(3.5f) == 4);
-        nvCheck(ftoi_round(4.5f) == 4);
-        nvCheck(ftoi_round(-0.5f) == 0);
-        nvCheck(ftoi_round(-1.5f) == -2);
-                
-
-        // Truncation (round down if > 0, round up if < 0).
-        nvCheck(ftoi_trunc(0.1f) == 0);
-        nvCheck(ftoi_trunc(0.6f) == 0);
-        nvCheck(ftoi_trunc(-0.2f) == 0);
-        nvCheck(ftoi_trunc(-0.7f) == 0);    // @@ When using /arch:SSE2 in Win32, msvc produce wrong code for this one. It is skipping the addition.
-        nvCheck(ftoi_trunc(1.99f) == 1);
-        nvCheck(ftoi_trunc(-1.2f) == -1);
-
-        // Floor (round down).
-        nvCheck(ftoi_floor(0.1f) == 0);
-        nvCheck(ftoi_floor(0.6f) == 0);
-        nvCheck(ftoi_floor(-0.2f) == -1);
-        nvCheck(ftoi_floor(-0.7f) == -1);
-        nvCheck(ftoi_floor(1.99f) == 1);
-        nvCheck(ftoi_floor(-1.2f) == -2);
-
-        nvCheck(ftoi_floor(0) == 0);
-        nvCheck(ftoi_floor(1) == 1);
-        nvCheck(ftoi_floor(-1) == -1);
-        nvCheck(ftoi_floor(2) == 2);
-        nvCheck(ftoi_floor(-2) == -2);
-
-        // Ceil (round up).
-        nvCheck(ftoi_ceil(0.1f) == 1);
-        nvCheck(ftoi_ceil(0.6f) == 1);
-        nvCheck(ftoi_ceil(-0.2f) == 0);
-        nvCheck(ftoi_ceil(-0.7f) == 0);
-        nvCheck(ftoi_ceil(1.99f) == 2);
-        nvCheck(ftoi_ceil(-1.2f) == -1);
-
-        nvCheck(ftoi_ceil(0) == 0);
-        nvCheck(ftoi_ceil(1) == 1);
-        nvCheck(ftoi_ceil(-1) == -1);
-        nvCheck(ftoi_ceil(2) == 2);
-        nvCheck(ftoi_ceil(-2) == -2);
-    }
-
-
-
-
-
-    // Safe versions using standard casts.
-
-    inline int iround(float f)
-    {
-        return ftoi_round(f);
-        //return int(floorf(f + 0.5f));
-    }
-
-    inline int iround(double f)
-    {
-        return int(::floor(f + 0.5));
-    }
-
-    inline int ifloor(float f)
-    {
-        return ftoi_floor(f);
-        //return int(floorf(f));
-    }
-
-    inline int iceil(float f)
-    {
-        return int(ceilf(f));
-    }
-
-
-
-    // I'm always confused about which quantizer to use. I think we should choose a quantizer based on how the values are expanded later and this is generally using the 'exact endpoints' rule.
-    // Some notes from cbloom: http://cbloomrants.blogspot.com/2011/07/07-26-11-pixel-int-to-float-options.html
-
-    // Quantize a float in the [0,1] range, using exact end points or uniform bins.
-    inline float quantizeFloat(float x, uint bits, bool exactEndPoints = true) {
-        nvDebugCheck(bits <= 16);
-
-        float range = float(1 << bits);
-        if (exactEndPoints) {
-            return floorf(x * (range-1) + 0.5f) / (range-1);
-        }
-        else {
-            return (floorf(x * range) + 0.5f) / range;
-        }
-    }
-
-
-    // This is the most common rounding mode:
-    // 
-    //   0     1       2     3
-    // |___|_______|_______|___|
-    // 0                       1
-    //
-    // You get that if you take the unit floating point number multiply by 'N-1' and round to nearest. That is, `i = round(f * (N-1))`.
-    // You reconstruct the original float dividing by 'N-1': `f = i / (N-1)`
-
-
-    //    0     1     2     3
-    // |_____|_____|_____|_____|
-    // 0                       1
-
-    /*enum BinningMode {
-        RoundMode_ExactEndPoints,       
-        RoundMode_UniformBins,
-    };*/
-
-    template <int N>
-    inline uint unitFloatToFixed(float f) {
-        return ftoi_round(f * ((1<<N)-1));
-    }
-
-    inline uint8 unitFloatToFixed8(float f) {
-        return (uint8)unitFloatToFixed<8>(f);
-    }
-
-    inline uint16 unitFloatToFixed16(float f) {
-        return (uint16)unitFloatToFixed<16>(f);
-    }
-
-
-} // nv
-
-#endif // NV_MATH_FTOI_H
diff --git a/thirdparty/thekla_atlas/nvmath/nvmath.h b/thirdparty/thekla_atlas/nvmath/nvmath.h
deleted file mode 100644
index a697f9293d..0000000000
--- a/thirdparty/thekla_atlas/nvmath/nvmath.h
+++ /dev/null
@@ -1,342 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MATH_H
-#define NV_MATH_H
-
-#include "nvcore/nvcore.h"
-#include "nvcore/Debug.h"   // nvDebugCheck
-#include "nvcore/Utils.h"   // max, clamp
-
-#include <math.h>
-
-#if NV_OS_WIN32 || NV_OS_XBOX || NV_OS_DURANGO
-#include <float.h>  // finite, isnan
-#endif
-
-// -- GODOT start --
-//#if NV_CPU_X86 || NV_CPU_X86_64
-//    //#include <intrin.h>
-//    #include <xmmintrin.h>
-//#endif
-// -- GODOT end --
-
-
-
-// Function linkage
-#if NVMATH_SHARED
-#ifdef NVMATH_EXPORTS
-#define NVMATH_API DLL_EXPORT
-#define NVMATH_CLASS DLL_EXPORT_CLASS
-#else
-#define NVMATH_API DLL_IMPORT
-#define NVMATH_CLASS DLL_IMPORT
-#endif
-#else // NVMATH_SHARED
-#define NVMATH_API
-#define NVMATH_CLASS
-#endif // NVMATH_SHARED
-
-// Set some reasonable defaults.
-#ifndef NV_USE_ALTIVEC
-#   define NV_USE_ALTIVEC NV_CPU_PPC
-//#   define NV_USE_ALTIVEC defined(__VEC__)
-#endif
-
-#ifndef NV_USE_SSE
-#   if NV_CPU_X86_64
-        // x64 always supports at least SSE2
-#       define NV_USE_SSE 2
-#   elif NV_CC_MSVC && defined(_M_IX86_FP)
-        // Also on x86 with the /arch:SSE flag in MSVC.
-#       define NV_USE_SSE _M_IX86_FP       // 1=SSE, 2=SS2
-#   elif defined(__SSE__)
-#       define NV_USE_SSE 1
-#   elif defined(__SSE2__)
-#       define NV_USE_SSE 2
-#   else
-        // Otherwise we assume no SSE.
-#       define NV_USE_SSE 0
-#   endif
-#endif
-
-
-// Internally set NV_USE_SIMD when either altivec or sse is available.
-#if NV_USE_ALTIVEC && NV_USE_SSE
-#	error "Cannot enable both altivec and sse!"
-#endif
-
-
-// -- GODOT start --
-#if NV_USE_SSE
-    //#include <intrin.h>
-    #include <xmmintrin.h>
-#endif
-// -- GODOT end --
-
-
-#ifndef PI
-#define PI                  float(3.1415926535897932384626433833)
-#endif
-
-#define NV_EPSILON          (0.0001f)
-#define NV_NORMAL_EPSILON   (0.001f)
-
-/*
-#define SQ(r)               ((r)*(r))
-
-#define SIGN_BITMASK        0x80000000
-
-/// Integer representation of a floating-point value.
-#define IR(x)               ((uint32 &)(x))
-
-/// Absolute integer representation of a floating-point value
-#define AIR(x)              (IR(x) & 0x7fffffff)
-
-/// Floating-point representation of an integer value.
-#define FR(x)               ((float&)(x))
-
-/// Integer-based comparison of a floating point value.
-/// Don't use it blindly, it can be faster or slower than the FPU comparison, depends on the context.
-#define IS_NEGATIVE_FLOAT(x) (IR(x)&SIGN_BITMASK)
-*/
-
-extern "C" inline double sqrt_assert(const double f)
-{
-    nvDebugCheck(f >= 0.0f);
-    return sqrt(f);
-}
-
-inline float sqrtf_assert(const float f)
-{
-    nvDebugCheck(f >= 0.0f);
-    return sqrtf(f);
-}
-
-extern "C" inline double acos_assert(const double f) 
-{
-    nvDebugCheck(f >= -1.0f && f <= 1.0f);
-    return acos(f);
-}
-
-inline float acosf_assert(const float f)
-{
-    nvDebugCheck(f >= -1.0f && f <= 1.0f);
-    return acosf(f);
-}
-
-extern "C" inline double asin_assert(const double f)
-{
-    nvDebugCheck(f >= -1.0f && f <= 1.0f);
-    return asin(f);
-}
-
-inline float asinf_assert(const float f)
-{
-    nvDebugCheck(f >= -1.0f && f <= 1.0f);
-    return asinf(f);
-}
-
-// Replace default functions with asserting ones.
-#if !NV_CC_MSVC || (NV_CC_MSVC && (_MSC_VER < 1700))    // IC: Apparently this was causing problems in Visual Studio 2012. See Issue 194: https://code.google.com/p/nvidia-texture-tools/issues/detail?id=194
-#define sqrt sqrt_assert
-#define sqrtf sqrtf_assert
-#define acos acos_assert
-#define acosf acosf_assert
-#define asin asin_assert
-#define asinf asinf_assert
-#endif
-
-#if NV_CC_MSVC
-NV_FORCEINLINE float log2f(float x)
-{
-    nvCheck(x >= 0);
-    return logf(x) / logf(2.0f);
-}
-NV_FORCEINLINE float exp2f(float x)
-{
-    return powf(2.0f, x);
-}
-#endif
-
-namespace nv
-{
-    inline float toRadian(float degree) { return degree * (PI / 180.0f); }
-    inline float toDegree(float radian) { return radian * (180.0f / PI); }
-
-    // Robust floating point comparisons:
-    // http://realtimecollisiondetection.net/blog/?p=89
-    inline bool equal(const float f0, const float f1, const float epsilon = NV_EPSILON)
-    {
-        //return fabs(f0-f1) <= epsilon;
-        return fabs(f0-f1) <= epsilon * max3(1.0f, fabsf(f0), fabsf(f1));
-    }
-
-    inline bool isZero(const float f, const float epsilon = NV_EPSILON)
-    {
-        return fabs(f) <= epsilon;
-    }
-
-    inline bool isFinite(const float f)
-    {
-#if NV_OS_WIN32 || NV_OS_XBOX || NV_OS_DURANGO
-        return _finite(f) != 0;
-#elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD || NV_OS_ORBIS || NV_OS_LINUX
-        return isfinite(f);
-#else
-#   error "isFinite not supported"
-#endif
-        //return std::isfinite (f);
-        //return finite (f);
-    }
-
-    inline bool isNan(const float f)
-    {
-#if NV_OS_WIN32 || NV_OS_XBOX || NV_OS_DURANGO
-        return _isnan(f) != 0;
-#elif NV_OS_DARWIN || NV_OS_FREEBSD || NV_OS_OPENBSD || NV_OS_ORBIS || NV_OS_LINUX
-        return isnan(f);
-#else
-#   error "isNan not supported"
-#endif
-    }
-
-    inline uint log2(uint32 i)
-    {
-        uint32 value = 0;
-        while( i >>= 1 ) value++;
-        return value;
-    }
-
-    inline uint log2(uint64 i)
-    {
-        uint64 value = 0;
-        while (i >>= 1) value++;
-        return U32(value);
-    }
-
-    inline float lerp(float f0, float f1, float t)
-    {
-        const float s = 1.0f - t;
-        return f0 * s + f1 * t;
-    }
-
-    inline float square(float f) { return f * f; }
-    inline int square(int i) { return i * i; }
-
-    inline float cube(float f) { return f * f * f; }
-    inline int cube(int i) { return i * i * i; }
-
-    inline float frac(float f)
-    {
-        return f - floor(f);
-    }
-
-    inline float floatRound(float f)
-    {
-        return floorf(f + 0.5f);
-    }
-
-    // Eliminates negative zeros from a float array.
-    inline void floatCleanup(float * fp, int n)
-    {
-        for (int i = 0; i < n; i++) {
-            //nvDebugCheck(isFinite(fp[i]));
-            union { float f; uint32 i; } x = { fp[i] };
-            if (x.i == 0x80000000) fp[i] = 0.0f;
-        }
-    }
-
-    inline float saturate(float f) {
-        return clamp(f, 0.0f, 1.0f);
-    }
-
-    inline float linearstep(float edge0, float edge1, float x) {
-        // Scale, bias and saturate x to 0..1 range
-        return saturate((x - edge0) / (edge1 - edge0));
-    }
-
-    inline float smoothstep(float edge0, float edge1, float x) {
-        x = linearstep(edge0, edge1, x); 
-
-        // Evaluate polynomial
-        return x*x*(3 - 2*x);
-    }
-
-    inline int sign(float a)
-    {
-        return (a > 0) - (a < 0);
-        //if (a > 0.0f) return 1;
-        //if (a < 0.0f) return -1;
-        //return 0;
-    }
-
-    union Float754 {
-        unsigned int raw;
-        float value;
-        struct {
-        #if NV_BIG_ENDIAN
-            unsigned int negative:1;
-            unsigned int biasedexponent:8;
-            unsigned int mantissa:23;
-        #else
-            unsigned int mantissa:23;
-            unsigned int biasedexponent:8;
-            unsigned int negative:1;
-        #endif
-        } field;
-    };
-
-    // Return the exponent of x ~ Floor(Log2(x))
-    inline int floatExponent(float x)
-    {
-        Float754 f;
-        f.value = x;
-        return (f.field.biasedexponent - 127);
-    }
-
-
-    // FloatRGB9E5
-    union Float3SE {
-        uint32 v;
-        struct {
-        #if NV_BIG_ENDIAN
-            uint32 e : 5;
-            uint32 zm : 9;
-            uint32 ym : 9;
-            uint32 xm : 9;
-        #else
-            uint32 xm : 9;
-            uint32 ym : 9;
-            uint32 zm : 9;
-            uint32 e : 5;
-        #endif
-        };
-    };
-
-    // FloatR11G11B10
-    union Float3PK {
-        uint32 v;
-        struct {
-        #if NV_BIG_ENDIAN
-            uint32 ze : 5;
-            uint32 zm : 5;
-            uint32 ye : 5;
-            uint32 ym : 6;
-            uint32 xe : 5;
-            uint32 xm : 6;
-        #else
-            uint32 xm : 6;
-            uint32 xe : 5;
-            uint32 ym : 6;
-            uint32 ye : 5;
-            uint32 zm : 5;
-            uint32 ze : 5;
-        #endif
-        };
-    };
-
-
-} // nv
-
-#endif // NV_MATH_H
diff --git a/thirdparty/thekla_atlas/nvmesh/BaseMesh.cpp b/thirdparty/thekla_atlas/nvmesh/BaseMesh.cpp
deleted file mode 100644
index f17d3b46fd..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/BaseMesh.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "BaseMesh.h"
-#include "Stream.h"
-#include "nvmath/TypeSerialization.h"
-
-
-namespace nv
-{
-	static Stream & operator<< (Stream & s, BaseMesh::Vertex & vertex)
-	{
-		return s << vertex.id << vertex.pos << vertex.nor << vertex.tex;
-	}
-
-	Stream & operator<< (Stream & s, BaseMesh & mesh)
-	{
-		return s << mesh.m_vertexArray;
-	}
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/BaseMesh.h b/thirdparty/thekla_atlas/nvmesh/BaseMesh.h
deleted file mode 100644
index c8559511f1..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/BaseMesh.h
+++ /dev/null
@@ -1,72 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MESH_BASEMESH_H
-#define NV_MESH_BASEMESH_H
-
-#include "nvmesh.h"
-#include "nvmath/Vector.h"
-#include "nvcore/Array.h"
-#include "nvcore/Hash.h"
-
-namespace nv
-{
-
-    /// Base mesh without connectivity.
-    class BaseMesh
-    {
-    public:
-        struct Vertex;
-
-        BaseMesh() {}
-
-        BaseMesh(uint vertexNum) :
-            m_vertexArray(vertexNum) {}
-
-        // Vertex methods.
-        uint vertexCount() const { return m_vertexArray.count(); }
-        const Vertex & vertexAt(uint i) const { return m_vertexArray[i]; }
-        Vertex & vertexAt(uint i) { return m_vertexArray[i]; }
-        const Array<Vertex> & vertices() const { return m_vertexArray; }
-        Array<Vertex> & vertices() { return m_vertexArray; }
-
-        friend Stream & operator<< (Stream & s, BaseMesh & obj);
-
-    protected:
-
-        Array<Vertex> m_vertexArray;
-    };
-
-
-    /// BaseMesh vertex.
-    struct BaseMesh::Vertex
-    {
-        Vertex() : id(NIL), pos(0.0f), nor(0.0f), tex(0.0f) {}
-
-        uint id;		// @@ Vertex should be an index into the vertex data.
-        Vector3 pos;
-        Vector3 nor;
-        Vector2 tex;
-    };
-
-    inline bool operator==(const BaseMesh::Vertex & a, const BaseMesh::Vertex & b)
-    {
-        return a.pos == b.pos && a.nor == b.nor && a.tex == b.tex;
-    }
-
-    inline bool operator!=(const BaseMesh::Vertex & a, const BaseMesh::Vertex & b)
-    {
-        return a.pos != b.pos && a.nor != b.nor && a.tex != b.tex;
-    }
-
-    template <> struct Hash<BaseMesh::Vertex>
-    {
-        uint operator()(const BaseMesh::Vertex & v) const
-        {
-            return Hash<Vector3>()(v.pos);
-        }
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_BASEMESH_H
diff --git a/thirdparty/thekla_atlas/nvmesh/MeshBuilder.cpp b/thirdparty/thekla_atlas/nvmesh/MeshBuilder.cpp
deleted file mode 100644
index 24d8ddff89..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/MeshBuilder.cpp
+++ /dev/null
@@ -1,1000 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "nvmesh.h" // pch
-
-#include "MeshBuilder.h"
-#include "TriMesh.h"
-#include "QuadTriMesh.h"
-#include "halfedge/Mesh.h"
-#include "halfedge/Vertex.h"
-#include "halfedge/Face.h"
-
-#include "weld/Weld.h"
-
-#include "nvmath/Box.h"
-#include "nvmath/Vector.inl"
-
-#include "nvcore/StrLib.h"
-#include "nvcore/RadixSort.h"
-#include "nvcore/Ptr.h"
-#include "nvcore/Array.inl"
-#include "nvcore/HashMap.inl"
-
-
-using namespace nv;
-
-/*
-By default the mesh builder creates 3 streams (position, normal, texcoord), I'm planning to add support for extra streams as follows:
-
-enum StreamType { StreamType_Float, StreamType_Vector2, StreamType_Vector3, StreamType_Vector4 };
-
-uint addStream(const char *, uint idx, StreamType);
-
-uint addAttribute(float)
-uint addAttribute(Vector2)
-uint addAttribute(Vector3)
-uint addAttribute(Vector4)
-
-struct Vertex
-{
-    uint pos;
-    uint nor;
-    uint tex;
-    uint * attribs;	// NULL or NIL terminated array?
-};
-
-All streams must be added before hand, so that you know the size of the attribs array.
-
-The vertex hash function could be kept as is, but the == operator should be extended to test 
-the extra atributes when available.
-
-That might require a custom hash implementation, or an extension of the current one. How to
-handle the variable number of attributes in the attribs array?
-
-bool operator()(const Vertex & a, const Vertex & b) const
-{ 
-    if (a.pos != b.pos || a.nor != b.nor || a.tex != b.tex) return false;
-    if (a.attribs == NULL && b.attribs == NULL) return true;
-    return 0 == memcmp(a.attribs, b.attribs, ???);
-}
-
-We could use a NIL terminated array, or provide custom user data to the equals functor.
-
-vertexMap.setUserData((void *)vertexAttribCount);
-
-bool operator()(const Vertex & a, const Vertex & b, void * userData) const { ... }
-
-*/
-
-
-
-namespace 
-{
-    struct Material
-    {
-        Material() : faceCount(0) {}
-        Material(const String & str) : name(str), faceCount(0) {}
-
-        String name;
-        uint faceCount;
-    };
-
-    struct Vertex
-    {
-        //Vertex() {}
-        //Vertex(uint p, uint n, uint t0, uint t1, uint c) : pos(p), nor(n), tex0(t0), tex1(t1), col(c) {}
-
-        friend bool operator==(const Vertex & a, const Vertex & b)
-        {
-            return a.pos == b.pos && a.nor == b.nor && a.tex[0] == b.tex[0] && a.tex[1] == b.tex[1] && a.col[0] == b.col[0] && a.col[1] == b.col[1] && a.col[2] == b.col[2];
-        }
-
-        uint pos;
-        uint nor;
-        uint tex[2];
-        uint col[3];
-    };
-
-    struct Face
-    {
-        uint id;
-        uint firstIndex;
-        uint indexCount;
-        uint material;
-        uint group;
-    };
-
-} // namespace
-
-
-namespace nv
-{
-    // This is a much better hash than the default and greatly improves performance!
-    template <> struct Hash<Vertex>
-    {
-        uint operator()(const Vertex & v) const { return v.pos + v.nor + v.tex[0]/* + v.col*/; }
-    };
-}
-
-struct MeshBuilder::PrivateData
-{
-    PrivateData() : currentGroup(NIL), currentMaterial(NIL), maxFaceIndexCount(0) {}
-
-    uint pushVertex(uint p, uint n, uint t0, uint t1, uint c0, uint c1, uint c2);
-    uint pushVertex(const Vertex & v);
-
-    Array<Vector3> posArray;
-    Array<Vector3> norArray;
-    Array<Vector2> texArray[2];
-    Array<Vector4> colArray[3];
-
-    Array<Vertex> vertexArray;
-    HashMap<Vertex, uint> vertexMap;
-
-    HashMap<String, uint> materialMap;
-    Array<Material> materialArray;
-
-    uint currentGroup;
-    uint currentMaterial;
-
-    Array<uint> indexArray;
-    Array<Face> faceArray;
-
-    uint maxFaceIndexCount;
-};
-
-
-uint MeshBuilder::PrivateData::pushVertex(uint p, uint n, uint t0, uint t1, uint c0, uint c1, uint c2)
-{
-    Vertex v;
-    v.pos = p;
-    v.nor = n;
-    v.tex[0] = t0;
-    v.tex[1] = t1;
-    v.col[0] = c0;
-    v.col[1] = c1;
-    v.col[2] = c2;
-    return pushVertex(v);
-}
-
-uint MeshBuilder::PrivateData::pushVertex(const Vertex & v)
-{
-    // Lookup vertex v in map.
-    uint idx;
-    if (vertexMap.get(v, &idx))
-    {
-        return idx;
-    }
-
-    idx = vertexArray.count();
-    vertexArray.pushBack(v);
-    vertexMap.add(v, idx);
-
-    return idx;
-}
-
-
-MeshBuilder::MeshBuilder() : d(new PrivateData())
-{
-}
-
-MeshBuilder::~MeshBuilder()
-{
-    nvDebugCheck(d != NULL);
-    delete d;
-}
-
-
-// Builder methods.
-uint MeshBuilder::addPosition(const Vector3 & v)
-{
-    d->posArray.pushBack(validate(v));
-    return d->posArray.count() - 1;
-}
-
-uint MeshBuilder::addNormal(const Vector3 & v)
-{
-    d->norArray.pushBack(validate(v));
-    return d->norArray.count() - 1;
-}
-
-uint MeshBuilder::addTexCoord(const Vector2 & v, uint set/*=0*/)
-{
-    d->texArray[set].pushBack(validate(v));
-    return d->texArray[set].count() - 1;
-}
-
-uint MeshBuilder::addColor(const Vector4 & v, uint set/*=0*/)
-{
-    d->colArray[set].pushBack(validate(v));
-    return d->colArray[set].count() - 1;
-}
-
-void MeshBuilder::beginGroup(uint id)
-{
-    d->currentGroup = id;
-}
-
-void MeshBuilder::endGroup()
-{
-    d->currentGroup = NIL;
-}
-
-// Add named material, check for uniquenes.
-uint MeshBuilder::addMaterial(const char * name)
-{
-    uint index;
-    if (d->materialMap.get(name, &index)) {
-        nvDebugCheck(d->materialArray[index].name == name);
-    }
-    else {
-        index = d->materialArray.count();
-        d->materialMap.add(name, index);
-        
-        Material material(name);
-        d->materialArray.append(material);
-    }
-    return index;
-}
-
-void MeshBuilder::beginMaterial(uint id)
-{
-    d->currentMaterial = id;
-}
-
-void MeshBuilder::endMaterial()
-{
-    d->currentMaterial = NIL;
-}
-
-void MeshBuilder::beginPolygon(uint id/*=0*/)
-{
-    Face face;
-    face.id = id;
-    face.firstIndex = d->indexArray.count();
-    face.indexCount = 0;
-    face.material = d->currentMaterial;
-    face.group = d->currentGroup;
-
-    d->faceArray.pushBack(face);
-}
-
-uint MeshBuilder::addVertex(uint p, uint n/*= NIL*/, uint t0/*= NIL*/, uint t1/*= NIL*/, uint c0/*= NIL*/, uint c1/*= NIL*/, uint c2/*= NIL*/)
-{
-    // @@ In theory there's no need to add vertices before faces, but I'm adding this to debug problems in our maya exporter:
-    nvDebugCheck(p < d->posArray.count());
-    nvDebugCheck(n == NIL || n < d->norArray.count());
-    nvDebugCheck(t0 == NIL || t0 < d->texArray[0].count());
-    nvDebugCheck(t1 == NIL || t1 < d->texArray[1].count());
-    //nvDebugCheck(c0 == NIL || c0 < d->colArray[0].count());
-    if (c0 > d->colArray[0].count()) c0 = NIL;    // @@ This seems to be happening in loc_swamp_catwalk.mb! No idea why.
-    nvDebugCheck(c1 == NIL || c1 < d->colArray[1].count());
-    nvDebugCheck(c2 == NIL || c2 < d->colArray[2].count());
-
-    uint idx = d->pushVertex(p, n, t0, t1, c0, c1, c2);
-    d->indexArray.pushBack(idx);
-    d->faceArray.back().indexCount++;
-    return idx;
-}
-
-uint MeshBuilder::addVertex(const Vector3 & pos)
-{
-    uint p = addPosition(pos);
-    return addVertex(p);
-}
-
-#if 0
-uint MeshBuilder::addVertex(const Vector3 & pos, const Vector3 & nor, const Vector2 & tex0, const Vector2 & tex1, const Vector4 & col0, const Vector4 & col1)
-{
-    uint p = addPosition(pos);
-    uint n = addNormal(nor);
-    uint t0 = addTexCoord(tex0, 0);
-    uint t1 = addTexCoord(tex1, 1);
-    uint c0 = addColor(col0);
-    uint c1 = addColor(col1);
-    return addVertex(p, n, t0, t1, c0, c1);
-}
-#endif
-
-// Return true if the face is valid and was added to the mesh.
-bool MeshBuilder::endPolygon()
-{
-    const Face & face = d->faceArray.back();
-    const uint count = face.indexCount;
-
-    // Validate polygon here.
-    bool invalid = count <= 2;
-
-    if (!invalid) {
-        // Skip zero area polygons. Or polygons with degenerate edges (which will result in zero-area triangles).
-        const uint first = face.firstIndex;
-        for (uint j = count - 1, i = 0; i < count; j = i, i++) {
-            uint v0 = d->indexArray[first + i];
-            uint v1 = d->indexArray[first + j];
-
-            uint p0 = d->vertexArray[v0].pos;
-            uint p1 = d->vertexArray[v1].pos;
-
-            if (p0 == p1) {
-                invalid = true;
-                break;
-            }
-
-            if (equal(d->posArray[p0], d->posArray[p1], FLT_EPSILON)) {
-                invalid = true;
-                break;
-            }
-        }
-
-        uint v0 = d->indexArray[first];
-        uint p0 = d->vertexArray[v0].pos;
-        Vector3 x0 = d->posArray[p0];
-
-        float area = 0.0f;
-        for (uint j = 1, i = 2; i < count; j = i, i++) {
-            uint v1 = d->indexArray[first + i];
-            uint v2 = d->indexArray[first + j];
-
-            uint p1 = d->vertexArray[v1].pos;
-            uint p2 = d->vertexArray[v2].pos;
-
-            Vector3 x1 = d->posArray[p1];
-            Vector3 x2 = d->posArray[p2];
-
-            area += length(cross(x1-x0, x2-x0));
-        }
-
-        if (0.5 * area < 1e-6) {    // Reduce this threshold if artists have legitimate complains.
-            invalid = true;
-        }
-
-        // @@ This is not complete. We may still get zero area triangles after triangulation.
-        // However, our plugin triangulates before building the mesh, so hopefully that's not a problem.
-
-    }
-
-    if (invalid)
-    {
-        d->indexArray.resize(d->indexArray.size() - count);
-        d->faceArray.popBack();
-        return false;
-    }
-    else
-    {
-        if (d->currentMaterial != NIL) {
-            d->materialArray[d->currentMaterial].faceCount++;
-        }
-
-        d->maxFaceIndexCount = max(d->maxFaceIndexCount, count);
-        return true;
-    }
-}
-
-
-uint MeshBuilder::weldPositions()
-{
-    Array<uint> xrefs;
-    Weld<Vector3> weldVector3;
-
-    if (d->posArray.count()) {
-        // Weld vertex attributes.
-        weldVector3(d->posArray, xrefs);
-
-        // Remap vertex indices.
-        const uint vertexCount = d->vertexArray.count();
-        for (uint v = 0; v < vertexCount; v++)
-        {
-            Vertex & vertex = d->vertexArray[v];
-            if (vertex.pos != NIL) vertex.pos = xrefs[vertex.pos];
-        }
-    }
-
-    return d->posArray.count();
-}
-
-uint MeshBuilder::weldNormals()
-{
-    Array<uint> xrefs;
-    Weld<Vector3> weldVector3;
-
-    if (d->norArray.count()) {
-        // Weld vertex attributes.
-        weldVector3(d->norArray, xrefs);
-
-        // Remap vertex indices.
-        const uint vertexCount = d->vertexArray.count();
-        for (uint v = 0; v < vertexCount; v++)
-        {
-            Vertex & vertex = d->vertexArray[v];
-            if (vertex.nor != NIL) vertex.nor = xrefs[vertex.nor];
-        }
-    }
-
-    return d->norArray.count();
-}
-
-uint MeshBuilder::weldTexCoords(uint set/*=0*/)
-{
-    Array<uint> xrefs;
-    Weld<Vector2> weldVector2;
-
-    if (d->texArray[set].count()) {
-        // Weld vertex attributes.
-        weldVector2(d->texArray[set], xrefs);
-
-        // Remap vertex indices.
-        const uint vertexCount = d->vertexArray.count();
-        for (uint v = 0; v < vertexCount; v++)
-        {
-            Vertex & vertex = d->vertexArray[v];
-            if (vertex.tex[set] != NIL) vertex.tex[set] = xrefs[vertex.tex[set]];
-        }
-    }
-
-    return d->texArray[set].count();
-}
-
-uint  MeshBuilder::weldColors(uint set/*=0*/)
-{
-    Array<uint> xrefs;
-    Weld<Vector4> weldVector4;
-
-    if (d->colArray[set].count()) {
-        // Weld vertex attributes.
-        weldVector4(d->colArray[set], xrefs);
-
-        // Remap vertex indices.
-        const uint vertexCount = d->vertexArray.count();
-        for (uint v = 0; v < vertexCount; v++)
-        {
-            Vertex & vertex = d->vertexArray[v];
-            if (vertex.col[set] != NIL) vertex.col[set] = xrefs[vertex.col[set]];
-        }
-    }
-
-    return d->colArray[set].count();
-}
-
-void MeshBuilder::weldVertices() {
-
-    if (d->vertexArray.count() == 0) {
-        // Nothing to do.
-        return;
-    }
-
-    Array<uint> xrefs;
-    Weld<Vertex> weldVertex;
-
-    // Weld vertices.
-    weldVertex(d->vertexArray, xrefs);
-
-    // Remap face indices.
-    const uint indexCount = d->indexArray.count();
-    for (uint i = 0; i < indexCount; i++)
-    {
-        d->indexArray[i] = xrefs[d->indexArray[i]];
-    }
-
-    // Remap vertex map.
-    foreach(i, d->vertexMap)
-    {
-        d->vertexMap[i].value = xrefs[d->vertexMap[i].value];
-    }
-}
-
-
-void MeshBuilder::optimize()
-{
-    if (d->vertexArray.count() == 0)
-    {
-        return;
-    }
-
-    weldPositions();
-    weldNormals();
-    weldTexCoords(0);
-    weldTexCoords(1);
-    weldColors();
-
-    weldVertices();
-}
-
-
-
-
-
-
-void MeshBuilder::removeUnusedMaterials(Array<uint> & newMaterialId)
-{
-    uint materialCount = d->materialArray.count();
-
-    // Reset face counts.
-    for (uint i = 0; i < materialCount; i++) {
-        d->materialArray[i].faceCount = 0;
-    }
-
-    // Count faces.
-    foreach(i, d->faceArray) {
-        Face & face = d->faceArray[i];
-
-        if (face.material != NIL) {
-            nvDebugCheck(face.material < materialCount);
-
-            d->materialArray[face.material].faceCount++;
-        }
-    }
-
-    // Remove unused materials.
-    newMaterialId.resize(materialCount);
-
-    for (uint i = 0, m = 0; i < materialCount; i++)
-    {
-        if (d->materialArray[m].faceCount > 0)
-        {
-            newMaterialId[i] = m++;
-        }
-        else
-        {
-            newMaterialId[i] = NIL;
-            d->materialArray.removeAt(m);
-        }
-    }
-
-    materialCount = d->materialArray.count();
-
-    // Update face material ids.
-    foreach(i, d->faceArray) {
-        Face & face = d->faceArray[i];
-
-        if (face.material != NIL) {
-            uint id = newMaterialId[face.material];
-            nvDebugCheck(id != NIL && id < materialCount);
-
-            face.material = id;
-        }
-    }
-}
-
-void MeshBuilder::sortFacesByGroup()
-{
-    const uint faceCount = d->faceArray.count();
-
-    Array<uint> faceGroupArray;
-    faceGroupArray.resize(faceCount);
-    
-    for (uint i = 0; i < faceCount; i++) {
-        faceGroupArray[i] = d->faceArray[i].group;
-    }
-
-    RadixSort radix;
-    radix.sort(faceGroupArray);
-
-    Array<Face> newFaceArray;
-    newFaceArray.resize(faceCount);
-
-    for (uint i = 0; i < faceCount; i++) {
-        newFaceArray[i] = d->faceArray[radix.rank(i)];
-    }
-
-    swap(newFaceArray, d->faceArray);
-}
-
-void MeshBuilder::sortFacesByMaterial()
-{
-    const uint faceCount = d->faceArray.count();
-
-    Array<uint> faceMaterialArray;
-    faceMaterialArray.resize(faceCount);
-    
-    for (uint i = 0; i < faceCount; i++) {
-        faceMaterialArray[i] = d->faceArray[i].material;
-    }
-
-    RadixSort radix;
-    radix.sort(faceMaterialArray);
-
-    Array<Face> newFaceArray;
-    newFaceArray.resize(faceCount);
-
-    for (uint i = 0; i < faceCount; i++) {
-        newFaceArray[i] = d->faceArray[radix.rank(i)];
-    }
-
-    swap(newFaceArray, d->faceArray);
-}
-
-
-void MeshBuilder::reset()
-{
-    nvDebugCheck(d != NULL);
-    delete d;
-    d = new PrivateData();
-}
-
-void MeshBuilder::done()
-{
-    if (d->currentGroup != NIL) {
-        endGroup();
-    }
-
-    if (d->currentMaterial != NIL) {
-        endMaterial();
-    }
-}
-
-// Hints.
-void MeshBuilder::hintTriangleCount(uint count)
-{
-    d->indexArray.reserve(d->indexArray.count() + count * 4);
-}
-
-void MeshBuilder::hintVertexCount(uint count)
-{
-    d->vertexArray.reserve(d->vertexArray.count() + count);
-    d->vertexMap.resize(d->vertexMap.count() + count);
-}
-
-void MeshBuilder::hintPositionCount(uint count)
-{
-    d->posArray.reserve(d->posArray.count() + count);
-}
-
-void MeshBuilder::hintNormalCount(uint count)
-{
-    d->norArray.reserve(d->norArray.count() + count);
-}
-
-void MeshBuilder::hintTexCoordCount(uint count, uint set/*=0*/)
-{
-    d->texArray[set].reserve(d->texArray[set].count() + count);
-}
-
-void MeshBuilder::hintColorCount(uint count, uint set/*=0*/)
-{
-    d->colArray[set].reserve(d->colArray[set].count() + count);
-}
-
-
-// Helpers.
-void MeshBuilder::addTriangle(uint v0, uint v1, uint v2)
-{
-    beginPolygon();
-    addVertex(v0);
-    addVertex(v1);
-    addVertex(v2);
-    endPolygon();
-}
-
-void MeshBuilder::addQuad(uint v0, uint v1, uint v2, uint v3)
-{
-    beginPolygon();
-    addVertex(v0);
-    addVertex(v1);
-    addVertex(v2);
-    addVertex(v3);
-    endPolygon();
-}
-
-
-// Get tri mesh.
-TriMesh * MeshBuilder::buildTriMesh() const
-{
-    const uint faceCount = d->faceArray.count();
-    uint triangleCount = 0;
-    for (uint f = 0; f < faceCount; f++) {
-        triangleCount += d->faceArray[f].indexCount - 2;
-    }
-    
-    const uint vertexCount = d->vertexArray.count();
-    TriMesh * mesh = new TriMesh(triangleCount, vertexCount);
-
-    // Build faces.
-    Array<TriMesh::Face> & faces = mesh->faces();
-
-    for(uint f = 0; f < faceCount; f++)
-    {
-        int firstIndex = d->faceArray[f].firstIndex;
-        int indexCount = d->faceArray[f].indexCount;
-
-        int v0 = d->indexArray[firstIndex + 0];
-        int v1 = d->indexArray[firstIndex + 1];
-
-        for(int t = 0; t < indexCount - 2; t++) {
-            int v2 = d->indexArray[firstIndex + t + 2];
-
-            TriMesh::Face face;
-            face.id = faces.count();
-            face.v[0] = v0;
-            face.v[1] = v1;
-            face.v[2] = v2;
-            faces.append(face);
-
-            v1 = v2;
-        }
-    }
-
-    // Build vertices.
-    Array<BaseMesh::Vertex> & vertices = mesh->vertices();
-
-    for(uint i = 0; i < vertexCount; i++)
-    {
-        BaseMesh::Vertex vertex;
-        vertex.id = i;
-        if (d->vertexArray[i].pos != NIL) vertex.pos = d->posArray[d->vertexArray[i].pos];
-        if (d->vertexArray[i].nor != NIL) vertex.nor = d->norArray[d->vertexArray[i].nor];
-        if (d->vertexArray[i].tex[0] != NIL) vertex.tex = d->texArray[0][d->vertexArray[i].tex[0]];
-
-        vertices.append(vertex);
-    }
-
-    return mesh;
-}
-
-// Get quad/tri mesh.
-QuadTriMesh * MeshBuilder::buildQuadTriMesh() const
-{
-    const uint faceCount = d->faceArray.count();
-    const uint vertexCount = d->vertexArray.count();
-    QuadTriMesh * mesh = new QuadTriMesh(faceCount, vertexCount);
-
-    // Build faces.
-    Array<QuadTriMesh::Face> & faces = mesh->faces();
-
-    for (uint f = 0; f < faceCount; f++) 
-    {
-        int firstIndex = d->faceArray[f].firstIndex;
-        int indexCount = d->faceArray[f].indexCount;
-
-        QuadTriMesh::Face face;
-        face.id = f;
-
-        face.v[0] = d->indexArray[firstIndex + 0];
-        face.v[1] = d->indexArray[firstIndex + 1];
-        face.v[2] = d->indexArray[firstIndex + 2];
-
-        // Only adds triangles and quads. Ignores polygons.
-        if (indexCount == 3) {
-            face.v[3] = NIL;
-            faces.append(face);
-        }
-        else if (indexCount == 4) {
-            face.v[3] = d->indexArray[firstIndex + 3];
-            faces.append(face);
-        }
-    }
-
-    // Build vertices.
-    Array<BaseMesh::Vertex> & vertices = mesh->vertices();
-
-    for(uint i = 0; i < vertexCount; i++)
-    {
-        BaseMesh::Vertex vertex;
-        vertex.id = i;
-        if (d->vertexArray[i].pos != NIL) vertex.pos = d->posArray[d->vertexArray[i].pos];
-        if (d->vertexArray[i].nor != NIL) vertex.nor = d->norArray[d->vertexArray[i].nor];
-        if (d->vertexArray[i].tex[0] != NIL) vertex.tex = d->texArray[0][d->vertexArray[i].tex[0]];
-
-        vertices.append(vertex);
-    }
-
-    return mesh;
-}
-
-// Get half edge mesh.
-HalfEdge::Mesh * MeshBuilder::buildHalfEdgeMesh(bool weldPositions, Error * error/*=NULL*/, Array<uint> * badFaces/*=NULL*/) const
-{
-    if (error != NULL) *error = Error_None;
-
-    const uint vertexCount = d->vertexArray.count();
-    AutoPtr<HalfEdge::Mesh> mesh(new HalfEdge::Mesh());
-
-    for(uint v = 0; v < vertexCount; v++)
-    {
-        HalfEdge::Vertex * vertex = mesh->addVertex(d->posArray[d->vertexArray[v].pos]);
-        if (d->vertexArray[v].nor != NIL) vertex->nor = d->norArray[d->vertexArray[v].nor];
-        if (d->vertexArray[v].tex[0] != NIL) vertex->tex = Vector2(d->texArray[0][d->vertexArray[v].tex[0]]);
-        if (d->vertexArray[v].col[0] != NIL) vertex->col = d->colArray[0][d->vertexArray[v].col[0]];
-    }
-
-    if (weldPositions) {
-        mesh->linkColocals();
-    }
-    else {
-        // Build canonical map from position indices.
-        Array<uint> canonicalMap(vertexCount);
-        
-        foreach (i, d->vertexArray) {
-            canonicalMap.append(d->vertexArray[i].pos);
-        }
-
-        mesh->linkColocalsWithCanonicalMap(canonicalMap);
-    }
-
-    const uint faceCount = d->faceArray.count();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const uint firstIndex = d->faceArray[f].firstIndex;
-        const uint indexCount = d->faceArray[f].indexCount;
-
-        HalfEdge::Face * face = mesh->addFace(d->indexArray, firstIndex, indexCount);
-        
-        // @@ This is too late, removing the face here will leave the mesh improperly connected.
-        /*if (face->area() <= FLT_EPSILON) {
-            mesh->remove(face);
-            face = NULL;
-        }*/
-
-        if (face == NULL) {
-            // Non manifold mesh.
-            if (error != NULL) *error = Error_NonManifoldEdge;
-            if (badFaces != NULL) {
-                badFaces->append(d->faceArray[f].id);
-            }
-            //return NULL; // IC: Ignore error and continue building the mesh.
-        }
-
-        if (face != NULL) {
-            face->group = d->faceArray[f].group;
-            face->material = d->faceArray[f].material;
-        }
-    }
-
-    mesh->linkBoundary();
-
-    // We cannot fix functions here, because this would introduce new vertices and these vertices won't have the corresponding builder data.
-
-    // Maybe the builder should perform the search for T-junctions and update the vertex data directly.
-
-    // For now, we don't fix T-junctions at export time, but only during parameterization.
-
-    //mesh->fixBoundaryJunctions();
-
-    //mesh->sewBoundary();
-
-    return mesh.release();
-}
-
-
-bool MeshBuilder::buildPositions(Array<Vector3> & positionArray)
-{
-    const uint vertexCount = d->vertexArray.count();
-    positionArray.resize(vertexCount);
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        nvDebugCheck(d->vertexArray[v].pos != NIL);
-        positionArray[v] = d->posArray[d->vertexArray[v].pos];
-    }
-
-    return true;
-}
-
-bool MeshBuilder::buildNormals(Array<Vector3> & normalArray)
-{
-    bool anyNormal = false;
-
-    const uint vertexCount = d->vertexArray.count();
-    normalArray.resize(vertexCount);
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        if (d->vertexArray[v].nor == NIL) {
-            normalArray[v] = Vector3(0, 0, 1);
-        }
-        else {
-            anyNormal = true;
-            normalArray[v] = d->norArray[d->vertexArray[v].nor];
-        }
-    }
-
-    return anyNormal;
-}
-
-bool MeshBuilder::buildTexCoords(Array<Vector2> & texCoordArray, uint set/*=0*/)
-{
-    bool anyTexCoord = false;
-
-    const uint vertexCount = d->vertexArray.count();
-    texCoordArray.resize(vertexCount);
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        if (d->vertexArray[v].tex[set] == NIL) {
-            texCoordArray[v] = Vector2(0, 0);
-        }
-        else {
-            anyTexCoord = true;
-            texCoordArray[v] = d->texArray[set][d->vertexArray[v].tex[set]];
-        }
-    }
-
-    return anyTexCoord;
-}
-
-bool MeshBuilder::buildColors(Array<Vector4> & colorArray, uint set/*=0*/)
-{
-    bool anyColor = false;
-
-    const uint vertexCount = d->vertexArray.count();
-    colorArray.resize(vertexCount);
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        if (d->vertexArray[v].col[set] == NIL) {
-            colorArray[v] = Vector4(0, 0, 0, 1);
-        }
-        else {
-            anyColor = true;
-            colorArray[v] = d->colArray[set][d->vertexArray[v].col[set]];
-        }
-    }
-
-    return anyColor;
-}
-
-void MeshBuilder::buildVertexToPositionMap(Array<int> &map)
-{
-	const uint vertexCount = d->vertexArray.count();
-	map.resize(vertexCount);
-
-	foreach (i, d->vertexArray) {
-		map[i] = d->vertexArray[i].pos;
-	}
-}
-
-
-
-uint MeshBuilder::vertexCount() const
-{
-    return d->vertexArray.count();
-}
-
-
-uint MeshBuilder::positionCount() const
-{
-    return d->posArray.count();
-}
-
-uint MeshBuilder::normalCount() const
-{
-    return d->norArray.count();
-}
-
-uint MeshBuilder::texCoordCount(uint set/*=0*/) const
-{
-    return d->texArray[set].count();
-}
-
-uint MeshBuilder::colorCount(uint set/*=0*/) const
-{
-    return d->colArray[set].count();
-}
-
-
-uint MeshBuilder::materialCount() const
-{
-    return d->materialArray.count();
-}
-
-const char * MeshBuilder::material(uint i) const
-{
-    return d->materialArray[i].name;
-}
-
-
-uint MeshBuilder::positionIndex(uint vertex) const
-{
-    return d->vertexArray[vertex].pos;
-}
-uint MeshBuilder::normalIndex(uint vertex) const
-{
-    return d->vertexArray[vertex].nor;
-}
-uint MeshBuilder::texCoordIndex(uint vertex, uint set/*=0*/) const
-{
-    return d->vertexArray[vertex].tex[set];
-}
-uint MeshBuilder::colorIndex(uint vertex, uint set/*=0*/) const
-{
-    return d->vertexArray[vertex].col[set];
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/MeshBuilder.h b/thirdparty/thekla_atlas/nvmesh/MeshBuilder.h
deleted file mode 100644
index 5b3af3fc1d..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/MeshBuilder.h
+++ /dev/null
@@ -1,119 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_MESHBUILDER_H
-#define NV_MESH_MESHBUILDER_H
-
-#include "nvmesh.h"
-#include "nvcore/Array.h"
-#include "nvmath/Vector.h"
-
-namespace nv
-{
-    class String;
-    class TriMesh;
-    class QuadTriMesh;
-    namespace HalfEdge { class Mesh; }
-
-
-    /// Mesh builder is a helper class for importers.
-    /// Ideally it should handle any vertex data, but for now it only accepts positions, 
-    /// normals and texcoords.
-    class MeshBuilder
-    {
-        NV_FORBID_COPY(MeshBuilder);
-        NV_FORBID_HEAPALLOC();
-    public:
-        MeshBuilder();
-        ~MeshBuilder();
-
-        // Builder methods.
-        uint addPosition(const Vector3 & v);
-        uint addNormal(const Vector3 & v);
-        uint addTexCoord(const Vector2 & v, uint set = 0);
-        uint addColor(const Vector4 & v, uint set = 0);
-
-        void beginGroup(uint id);
-        void endGroup();
-
-        uint addMaterial(const char * name);
-        void beginMaterial(uint id);
-        void endMaterial();
-
-        void beginPolygon(uint id = 0);
-        uint addVertex(uint p, uint n = NIL, uint t0 = NIL, uint t1 = NIL, uint c0 = NIL, uint c1 = NIL, uint c2 = NIL);
-        uint addVertex(const Vector3 & p);
-        //uint addVertex(const Vector3 & p, const Vector3 & n, const Vector2 & t0 = Vector2(0), const Vector2 & t1 = Vector2(0), const Vector4 & c0 = Vector4(0), const Vector4 & c1 = Vector4(0));
-        bool endPolygon();
-
-        uint weldPositions();
-        uint weldNormals();
-        uint weldTexCoords(uint set = 0);
-        uint weldColors(uint set = 0);
-        void weldVertices();
-
-        void optimize(); // eliminate duplicate components and duplicate vertices.
-        void removeUnusedMaterials(Array<uint> & newMaterialId);
-        void sortFacesByGroup();
-        void sortFacesByMaterial();
-
-        void done();
-        void reset();
-
-        // Hints.
-        void hintTriangleCount(uint count);
-        void hintVertexCount(uint count);
-        void hintPositionCount(uint count);
-        void hintNormalCount(uint count);
-        void hintTexCoordCount(uint count, uint set = 0);
-        void hintColorCount(uint count, uint set = 0);
-
-        // Helpers.
-        void addTriangle(uint v0, uint v1, uint v2);
-        void addQuad(uint v0, uint v1, uint v2, uint v3);
-
-        // Get result.
-        TriMesh * buildTriMesh() const;
-        QuadTriMesh * buildQuadTriMesh() const;
-
-        enum Error {
-            Error_None,
-            Error_NonManifoldEdge,
-            Error_NonManifoldVertex,
-        };
-
-        HalfEdge::Mesh * buildHalfEdgeMesh(bool weldPositions, Error * error = NULL, Array<uint> * badFaces = NULL) const;
-
-        bool buildPositions(Array<Vector3> & positionArray);
-        bool buildNormals(Array<Vector3> & normalArray);
-        bool buildTexCoords(Array<Vector2> & texCoordArray, uint set = 0);
-        bool buildColors(Array<Vector4> & colorArray, uint set = 0);
-		void buildVertexToPositionMap(Array<int> & map);
-
-
-        // Expose attribute indices of the unified vertex array.
-        uint vertexCount() const;
-        
-        uint positionCount() const;
-        uint normalCount() const;
-        uint texCoordCount(uint set = 0) const;
-        uint colorCount(uint set = 0) const;
-
-        uint materialCount() const;
-        const char * material(uint i) const;
-
-        uint positionIndex(uint vertex) const;
-        uint normalIndex(uint vertex) const;
-        uint texCoordIndex(uint vertex, uint set = 0) const;
-        uint colorIndex(uint vertex, uint set = 0) const;
-
-    private:
-
-        struct PrivateData;
-        PrivateData * d;
-
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_MESHBUILDER_H
diff --git a/thirdparty/thekla_atlas/nvmesh/MeshTopology.cpp b/thirdparty/thekla_atlas/nvmesh/MeshTopology.cpp
deleted file mode 100644
index e7e1dce421..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/MeshTopology.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "nvmesh.h" // pch
-
-#include "nvcore/Array.h"
-#include "nvcore/BitArray.h"
-
-#include "nvmesh/MeshTopology.h"
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Edge.h"
-#include "nvmesh/halfedge/Face.h"
-
-using namespace nv;
-
-void MeshTopology::buildTopologyInfo(const HalfEdge::Mesh * mesh)
-{
-    const uint vertexCount = mesh->colocalVertexCount();
-    const uint faceCount = mesh->faceCount();
-    const uint edgeCount = mesh->edgeCount();
-
-    nvDebug( "--- Building mesh topology:\n" );
-
-    Array<uint> stack(faceCount);
-
-    BitArray bitFlags(faceCount);
-    bitFlags.clearAll();
-
-    // Compute connectivity.
-    nvDebug( "---   Computing connectivity.\n" );
-
-    m_connectedCount = 0;
-
-    for(uint f = 0; f < faceCount; f++ ) {
-        if( bitFlags.bitAt(f) == false ) {
-            m_connectedCount++;
-
-            stack.pushBack( f );
-            while( !stack.isEmpty() ) {
-
-                const uint top = stack.back();
-                nvCheck(top != NIL);
-                stack.popBack();
-
-                if( bitFlags.bitAt(top) == false ) {
-                    bitFlags.setBitAt(top);
-
-                    const HalfEdge::Face * face = mesh->faceAt(top);
-                    const HalfEdge::Edge * firstEdge = face->edge;
-                    const HalfEdge::Edge * edge = firstEdge;
-
-                    do {
-                        const HalfEdge::Face * neighborFace = edge->pair->face;
-                        if (neighborFace != NULL) {
-                            stack.pushBack(neighborFace->id);
-                        }
-                        edge = edge->next;
-                    } while(edge != firstEdge);
-                }
-            }
-        }
-    }
-    nvCheck(stack.isEmpty());
-    nvDebug( "---   %d connected components.\n", m_connectedCount );
-
-
-    // Count boundary loops.
-    nvDebug( "---   Counting boundary loops.\n" );
-    m_boundaryCount = 0;
-
-    bitFlags.resize(edgeCount);
-    bitFlags.clearAll();
-
-    // Don't forget to link the boundary otherwise this won't work.
-    for (uint e = 0; e < edgeCount; e++)
-    {
-        const HalfEdge::Edge * startEdge = mesh->edgeAt(e);
-        if (startEdge != NULL && startEdge->isBoundary() && bitFlags.bitAt(e) == false)
-        {
-            nvDebugCheck(startEdge->face != NULL);
-            nvDebugCheck(startEdge->pair->face == NULL);
-
-            startEdge = startEdge->pair;
-
-            m_boundaryCount++;
-
-            const HalfEdge::Edge * edge = startEdge;
-            do {
-                bitFlags.setBitAt(edge->id / 2);
-                edge = edge->next;
-            } while(startEdge != edge);
-        }
-    }
-    nvDebug("---   %d boundary loops found.\n", m_boundaryCount );
-
-
-    // Compute euler number.
-    m_eulerNumber = vertexCount - edgeCount + faceCount;
-    nvDebug("---   Euler number: %d.\n", m_eulerNumber);
-
-
-    // Compute genus. (only valid on closed connected surfaces)
-    m_genus = -1;
-    if( isClosed() && isConnected() ) {
-        m_genus = (2 - m_eulerNumber) / 2;
-        nvDebug("---   Genus: %d.\n", m_genus);
-    }
-}
-
-
-/*static*/ bool MeshTopology::isQuadOnly(const HalfEdge::Mesh * mesh)
-{
-    const uint faceCount = mesh->faceCount();
-    for(uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = mesh->faceAt(f);
-        if (face->edgeCount() != 4) {
-            return false;
-        }
-    }
-
-    return true;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/MeshTopology.h b/thirdparty/thekla_atlas/nvmesh/MeshTopology.h
deleted file mode 100644
index c3d7477b15..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/MeshTopology.h
+++ /dev/null
@@ -1,66 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_MESHTOPOLOGY_H
-#define NV_MESH_MESHTOPOLOGY_H
-
-#include <nvmesh/nvmesh.h>
-
-namespace nv
-{
-    namespace HalfEdge { class Mesh; }
-    class MeshAdjacency;
-
-    /// Mesh topology information.
-    class MeshTopology
-    {
-    public:
-        MeshTopology(const HalfEdge::Mesh * mesh) { buildTopologyInfo(mesh); }
-
-        /// Determine if the mesh is connected.
-        bool isConnected() const { return m_connectedCount == 1; }
-
-        /// Determine if the mesh is closed. (Each edge is shared by two faces)
-        bool isClosed() const { return m_boundaryCount == 0; }
-
-        /// Return true if the mesh has the topology of a disk.
-        bool isDisk() const { return isConnected() && m_boundaryCount == 1/* && m_eulerNumber == 1*/; }
-
-        /// Return the number of connected components.
-        int connectedCount() const { return m_connectedCount; }
-
-        /// Return the number of open holes.
-        int holeCount() const { return m_boundaryCount; }
-
-        /// Return the genus of the mesh.
-        int genus() const { return m_genus; }
-
-        /// Return the euler number of the mesh.
-        int euler() const { return m_eulerNumber; }
-
-
-        static bool isQuadOnly(const HalfEdge::Mesh * mesh);
-
-
-    private:
-
-        NVMESH_API void buildTopologyInfo(const HalfEdge::Mesh * mesh);
-
-    private:
-
-        ///< Number of boundary loops.
-        int m_boundaryCount;		
-
-        ///< Number of connected components.
-        int m_connectedCount;		
-
-        ///< Euler number.
-        int m_eulerNumber;
-
-        /// Mesh genus.
-        int m_genus;
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_MESHTOPOLOGY_H
diff --git a/thirdparty/thekla_atlas/nvmesh/QuadTriMesh.cpp b/thirdparty/thekla_atlas/nvmesh/QuadTriMesh.cpp
deleted file mode 100644
index 64a071abe9..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/QuadTriMesh.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "QuadTriMesh.h"
-#include "Stream.h"
-
-using namespace nv;
-
-
-bool QuadTriMesh::isQuadFace(uint i) const 
-{ 
-    return m_faceArray[i].isQuadFace();
-}
-
-const QuadTriMesh::Vertex & QuadTriMesh::faceVertex(uint f, uint v) const 
-{
-    if (isQuadFace(f)) nvDebugCheck(v < 4);
-    else nvDebugCheck(v < 3);
-
-    const Face & face = this->faceAt(f);
-    return this->vertexAt(face.v[v]);
-}
-
-
-namespace nv
-{
-    static Stream & operator<< (Stream & s, QuadTriMesh::Face & face)
-    {
-        return s << face.id << face.v[0] << face.v[1] << face.v[2] << face.v[3];
-    }
-
-    Stream & operator<< (Stream & s, QuadTriMesh & mesh)
-    {
-        return s << mesh.m_faceArray << (BaseMesh &) mesh;
-    }
-}
-
diff --git a/thirdparty/thekla_atlas/nvmesh/QuadTriMesh.h b/thirdparty/thekla_atlas/nvmesh/QuadTriMesh.h
deleted file mode 100644
index b8465f2db0..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/QuadTriMesh.h
+++ /dev/null
@@ -1,60 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MESH_QUADTRIMESH_H
-#define NV_MESH_QUADTRIMESH_H
-
-#include "nvcore/Array.h"
-#include "nvmath/Vector.h"
-#include "nvmesh/nvmesh.h"
-#include "nvmesh/BaseMesh.h"
-
-namespace nv
-{
-    class Stream;
-
-    /// Mixed quad/triangle mesh.
-    class QuadTriMesh : public BaseMesh
-    {
-    public:
-        struct Face;
-        typedef BaseMesh::Vertex Vertex;
-
-        QuadTriMesh() {};
-        QuadTriMesh(uint faceCount, uint vertexCount) : BaseMesh(vertexCount), m_faceArray(faceCount) {}
-
-        // Face methods.
-        uint faceCount() const { return m_faceArray.count(); }
-
-        const Face & faceAt(uint i) const { return m_faceArray[i]; }
-        Face & faceAt(uint i) { return m_faceArray[i]; }
-
-        const Array<Face> & faces() const { return m_faceArray; }
-        Array<Face> & faces() { return m_faceArray; }
-
-        bool isQuadFace(uint i) const;
-
-        const Vertex & faceVertex(uint f, uint v) const;
-
-        friend Stream & operator<< (Stream & s, QuadTriMesh & obj);
-
-    private:
-
-        Array<Face> m_faceArray;
-
-    };
-
-
-    /// QuadTriMesh face.
-    struct QuadTriMesh::Face
-    {
-        uint id;
-        uint v[4];
-
-        bool isQuadFace() const { return v[3] != NIL; }
-    };
-
-} // nv namespace
-
-
-#endif // NV_MESH_QUADTRIMESH_H
diff --git a/thirdparty/thekla_atlas/nvmesh/TriMesh.cpp b/thirdparty/thekla_atlas/nvmesh/TriMesh.cpp
deleted file mode 100644
index bf10a474fb..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/TriMesh.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "TriMesh.h"
-
-using namespace nv;
-
-
-/// Triangle mesh.
-Vector3 TriMesh::faceNormal(uint f) const
-{
-    const Face & face = this->faceAt(f);
-    const Vector3 & p0 = this->vertexAt(face.v[0]).pos;
-    const Vector3 & p1 = this->vertexAt(face.v[1]).pos;
-    const Vector3 & p2 = this->vertexAt(face.v[2]).pos;
-    return normalizeSafe(cross(p1 - p0, p2 - p0), Vector3(0.0f), 0.0f);
-}
-
-/// Get face vertex.
-const TriMesh::Vertex & TriMesh::faceVertex(uint f, uint v) const
-{
-    nvDebugCheck(v < 3);
-    const Face & face = this->faceAt(f);
-    return this->vertexAt(face.v[v]);
-}
-
diff --git a/thirdparty/thekla_atlas/nvmesh/TriMesh.h b/thirdparty/thekla_atlas/nvmesh/TriMesh.h
deleted file mode 100644
index bc5672c1ac..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/TriMesh.h
+++ /dev/null
@@ -1,51 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MESH_TRIMESH_H
-#define NV_MESH_TRIMESH_H
-
-#include "nvcore/Array.h"
-#include "nvmath/Vector.inl"
-#include "nvmesh/nvmesh.h"
-#include "nvmesh/BaseMesh.h"
-
-namespace nv
-{
-    /// Triangle mesh.
-    class TriMesh : public BaseMesh
-    {
-    public:
-        struct Face;
-        typedef BaseMesh::Vertex Vertex;
-
-        TriMesh(uint faceCount, uint vertexCount) : BaseMesh(vertexCount), m_faceArray(faceCount) {}
-
-        // Face methods.
-        uint faceCount() const { return m_faceArray.count(); }
-        const Face & faceAt(uint i) const { return m_faceArray[i]; }
-        Face & faceAt(uint i) { return m_faceArray[i]; }
-        const Array<Face> & faces() const { return m_faceArray; }
-        Array<Face> & faces() { return m_faceArray; }
-
-        NVMESH_API Vector3 faceNormal(uint f) const;
-        NVMESH_API const Vertex & faceVertex(uint f, uint v) const;
-
-        friend Stream & operator<< (Stream & s, BaseMesh & obj);
-
-    private:
-
-        Array<Face> m_faceArray;
-
-    };
-
-
-    /// TriMesh face.
-    struct TriMesh::Face
-    {
-        uint id;
-        uint v[3];
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_TRIMESH_H
diff --git a/thirdparty/thekla_atlas/nvmesh/geometry/Bounds.cpp b/thirdparty/thekla_atlas/nvmesh/geometry/Bounds.cpp
deleted file mode 100644
index 69fd1deb24..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/geometry/Bounds.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#include "nvmesh.h" // pch
-
-#include "Bounds.h"
-
-#include "nvmesh/BaseMesh.h"
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Vertex.h"
-
-#include "nvmath/Box.inl"
-
-using namespace nv;
-
-Box MeshBounds::box(const BaseMesh * mesh)
-{
-    nvCheck(mesh != NULL);
-
-    Box bounds;
-    bounds.clearBounds();
-
-    const uint vertexCount = mesh->vertexCount();
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        const BaseMesh::Vertex & vertex = mesh->vertexAt(v);
-        bounds.addPointToBounds( vertex.pos );
-    }
-
-    return bounds;
-}
-
-Box MeshBounds::box(const HalfEdge::Mesh * mesh)
-{
-    nvCheck(mesh != NULL);
-
-    Box bounds;
-    bounds.clearBounds();
-
-    const uint vertexCount = mesh->vertexCount();
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        const HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-        nvDebugCheck(vertex != NULL);
-        bounds.addPointToBounds( vertex->pos );
-    }
-
-    return bounds;
-}
-
-/*Sphere MeshBounds::sphere(const HalfEdge::Mesh * mesh)
-{
-    // @@ TODO
-    return Sphere();
-}*/
diff --git a/thirdparty/thekla_atlas/nvmesh/geometry/Bounds.h b/thirdparty/thekla_atlas/nvmesh/geometry/Bounds.h
deleted file mode 100644
index 1cb5b7b905..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/geometry/Bounds.h
+++ /dev/null
@@ -1,28 +0,0 @@
-// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
-
-#pragma once
-#ifndef NV_MESH_MESHBOUNDS_H
-#define NV_MESH_MESHBOUNDS_H
-
-#include <nvmath/Sphere.h>
-#include <nvmath/Box.h>
-
-#include <nvmesh/nvmesh.h>
-
-namespace nv
-{
-    class BaseMesh;
-    namespace HalfEdge { class Mesh; }
-
-    // Bounding volumes computation.
-    namespace MeshBounds
-    {
-        Box box(const BaseMesh * mesh);
-        Box box(const HalfEdge::Mesh * mesh);
-
-        Sphere sphere(const HalfEdge::Mesh * mesh);
-    }
-
-} // nv namespace
-
-#endif // NV_MESH_MESHBOUNDS_H
diff --git a/thirdparty/thekla_atlas/nvmesh/geometry/Measurements.cpp b/thirdparty/thekla_atlas/nvmesh/geometry/Measurements.cpp
deleted file mode 100644
index e0c271663b..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/geometry/Measurements.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh.h" // pch
-
-#include "Measurements.h"
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Face.h"
-
-using namespace nv;
-
-float nv::computeSurfaceArea(const HalfEdge::Mesh * mesh)
-{
-    float area = 0;
-
-    for (HalfEdge::Mesh::ConstFaceIterator it(mesh->faces()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Face * face = it.current();
-        area += face->area();
-    }
-    nvDebugCheck(area >= 0);
-
-    return area;
-}
-
-float nv::computeParametricArea(const HalfEdge::Mesh * mesh)
-{
-    float area = 0;
-
-    for (HalfEdge::Mesh::ConstFaceIterator it(mesh->faces()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Face * face = it.current();
-        area += face->parametricArea();
-    }
-
-    return area;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/geometry/Measurements.h b/thirdparty/thekla_atlas/nvmesh/geometry/Measurements.h
deleted file mode 100644
index 0be863b79e..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/geometry/Measurements.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_MESH_MESHMEASUREMENTS_H
-#define NV_MESH_MESHMEASUREMENTS_H
-
-#include "nvmesh/nvmesh.h"
-
-namespace nv
-{
-    namespace HalfEdge { class Mesh; }
-
-	float computeSurfaceArea(const HalfEdge::Mesh * mesh);
-	float computeParametricArea(const HalfEdge::Mesh * mesh);
-
-} // nv namespace
-
-#endif // NV_MESH_MESHMEASUREMENTS_H
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.cpp b/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.cpp
deleted file mode 100644
index 671650296c..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "nvmesh.h" // pch
-
-#include "Edge.h"
-#include "Vertex.h"
-
-#include "nvmath/Vector.inl"
-
-using namespace nv;
-using namespace HalfEdge;
-
-Vector3 Edge::midPoint() const
-{
-    return (to()->pos + from()->pos) * 0.5f;
-}
-
-float Edge::length() const
-{
-    return ::length(to()->pos - from()->pos); 
-}
-
-// Return angle between this edge and the previous one.
-float Edge::angle() const {
-    Vector3 p = vertex->pos;
-    Vector3 a = prev->vertex->pos;
-    Vector3 b = next->vertex->pos;
-
-    Vector3 v0 = a - p;
-    Vector3 v1 = b - p;
-
-    return acosf(dot(v0, v1) / (nv::length(v0) * nv::length(v1)));
-}
-
-bool Edge::isValid() const
-{
-    // null face is OK.
-    if (next == NULL || prev == NULL || pair == NULL || vertex == NULL) return false;
-    if (next->prev != this) return false;
-    if (prev->next != this) return false;
-    if (pair->pair != this) return false;
-    return true;
-}
-
-/*
-Edge * Edge::nextBoundary() {
-    nvDebugCheck(this->m_pair == NULL);
-
-}
-
-Edge * Edge::prevBoundary() {
-    nvDebugCheck(this->m_pair == NULL);
-
-}
-*/
-
-
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.h b/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.h
deleted file mode 100644
index 25c47f4860..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Edge.h
+++ /dev/null
@@ -1,70 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_HALFEDGE_EDGE_H
-#define NV_MESH_HALFEDGE_EDGE_H
-
-#include "nvmath/Vector.h"
-
-namespace nv
-{
-    namespace HalfEdge { class Vertex; class Face; class Edge; }
-
-    /// Half edge edge. 
-    class HalfEdge::Edge
-    {
-        NV_FORBID_COPY(Edge);
-    public:
-
-        uint id;
-
-        Edge * next;
-        Edge * prev;	// This is not strictly half-edge, but makes algorithms easier and faster.
-        Edge * pair;
-        Vertex * vertex;
-        Face * face;
-
-
-        // Default constructor.
-        Edge(uint id) : id(id), next(NULL), prev(NULL), pair(NULL), vertex(NULL), face(NULL)
-        {
-        }
-
-
-        // Vertex queries.
-        const Vertex * from() const { return vertex; }
-        Vertex * from() { return vertex; }
-
-        const Vertex * to() const { return pair->vertex; }  // This used to be 'next->vertex', but that changed often when the connectivity of the mesh changes.
-        Vertex * to() { return pair->vertex; }
-
-
-        // Edge queries.
-        void setNext(Edge * e) { next = e; if (e != NULL) e->prev = this; }
-        void setPrev(Edge * e) { prev = e; if (e != NULL) e->next = this; }
-
-        // @@ Add these helpers:
-        //Edge * nextBoundary();
-        //Edge * prevBoundary();
-
-
-        // @@ It would be more simple to only check m_pair == NULL
-        // Face queries.
-        bool isBoundary() const { return !(face && pair->face); }
-
-        // @@ This is not exactly accurate, we should compare the texture coordinates...
-        bool isSeam() const { return vertex != pair->next->vertex || next->vertex != pair->vertex; }
-
-        bool isValid() const;
-
-        // Geometric queries.
-        Vector3 midPoint() const;
-        float length() const;
-        float angle() const;
-
-    };
-
-} // nv namespace
-
-
-#endif // NV_MESH_HALFEDGE_EDGE_H
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Face.cpp b/thirdparty/thekla_atlas/nvmesh/halfedge/Face.cpp
deleted file mode 100644
index 9f6987154e..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Face.cpp
+++ /dev/null
@@ -1,268 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "nvmesh.h" // pch
-
-#include "Face.h"
-#include "Vertex.h"
-
-#include "nvmath/Fitting.h"
-#include "nvmath/Plane.h"
-#include "nvmath/Vector.inl"
-
-#include "nvcore/Array.h"
-
-
-using namespace nv;
-using namespace HalfEdge;
-
-/// Get face area.
-float Face::area() const
-{
-    float area = 0;
-    const Vector3 & v0 = edge->from()->pos;
-
-    for (ConstEdgeIterator it(edges(edge->next)); it.current() != edge->prev; it.advance())
-    {
-        const Edge * e = it.current();
-
-        const Vector3 & v1 = e->vertex->pos;
-        const Vector3 & v2 = e->next->vertex->pos; 
-
-        area += length(cross(v1-v0, v2-v0));
-    }
-
-    return area * 0.5f;
-}
-
-float Face::parametricArea() const
-{
-    float area = 0;
-    const Vector2 & v0 = edge->from()->tex;
-
-    for (ConstEdgeIterator it(edges(edge->next)); it.current() != edge->prev; it.advance())
-    {
-        const Edge * e = it.current();
-
-        const Vector2 & v1 = e->vertex->tex;
-        const Vector2 & v2 = e->next->vertex->tex;
-
-        area += triangleArea(v0, v1, v2);
-    }
-
-    return area * 0.5f;
-}
-
-
-/// Get boundary length.
-float Face::boundaryLength() const
-{
-    float bl = 0;
-
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        bl += edge->length();
-    }
-
-    return bl;
-}
-
-
-/// Get face normal.
-Vector3 Face::normal() const
-{
-    Vector3 n(0);
-
-    const Vertex * vertex0 = NULL;
-
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        nvCheck(edge != NULL);
-
-        if (vertex0 == NULL)
-        {
-            vertex0 = edge->vertex;
-        }
-        else if (edge->next->vertex != vertex0)
-        {
-            const HalfEdge::Vertex * vertex1 = edge->from();
-            const HalfEdge::Vertex * vertex2 = edge->to();
-
-            const Vector3 & p0 = vertex0->pos;
-            const Vector3 & p1 = vertex1->pos;
-            const Vector3 & p2 = vertex2->pos;
-
-            Vector3 v10 = p1 - p0;
-            Vector3 v20 = p2 - p0;
-
-            n += cross(v10, v20);
-        }
-    }
-
-    return normalizeSafe(n, Vector3(0, 0, 1), 0.0f);
-
-
-    // Get face points eliminating duplicates.
-    /*Array<Vector3> points(4);
-
-    points.append(m_edge->prev()->from()->pos);
-
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        nvDebugCheck(edge != NULL);
-
-        const Vector3 & p = edge->from()->pos;
-        if (points.back() != p)
-        {
-            points.append(edge->from()->pos);
-        }
-    }
-
-    points.popBack();
-
-    if (points.count() < 3)
-    {
-        // Invalid normal.
-        return Vector3(0.0f);
-    }
-    else
-    {
-        // Compute regular normal.
-        Vector3 normal = normalizeSafe(cross(points[1] - points[0], points[2] - points[0]), Vector3(0.0f), 0.0f);
-
-#pragma NV_MESSAGE("TODO: make sure these three points are not colinear")
-
-        if (points.count() > 3)
-        {
-            // Compute best fitting plane to the points.
-            Plane plane = Fit::bestPlane(points.count(), points.buffer());
-
-            // Adjust normal orientation.
-            if (dot(normal, plane.vector()) > 0) {
-                normal = plane.vector();
-            }
-            else {
-                normal = -plane.vector();
-            }
-        }
-
-        nvDebugCheck(isNormalized(normal));
-        return normal;
-    }*/
-}
-
-Vector3 Face::centroid() const
-{
-    Vector3 sum(0.0f);
-    uint count = 0;
-
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        sum += edge->from()->pos;
-        count++;
-    }
-
-    return sum / float(count);
-}
-
-
-bool Face::isValid() const
-{
-    uint count = 0;
-
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        if (edge->face != this) return false;
-        if (!edge->isValid()) return false;
-        if (!edge->pair->isValid()) return false;
-        count++;
-    }
-
-    if (count < 3) return false;
-
-    return true;
-}
-
-
-// Determine if this face contains the given edge.
-bool Face::contains(const Edge * e) const
-{
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        if(it.current() == e) return true;
-    }
-    return false;
-}
-
-// Returns index in this face of the given edge.
-uint Face::edgeIndex(const Edge * e) const
-{
-    int i = 0;
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance(), i++)
-    {
-        if(it.current() == e) return i;
-    }
-    return NIL;
-}
-
-
-Edge * Face::edgeAt(uint idx)
-{ 
-    int i = 0;
-    for(EdgeIterator it(edges()); !it.isDone(); it.advance(), i++) {
-        if (i == idx) return it.current();
-    }
-    return NULL;
-}
-const Edge * Face::edgeAt(uint idx) const 
-{
-    int i = 0;
-    for(ConstEdgeIterator it(edges()); !it.isDone(); it.advance(), i++) {
-        if (i == idx) return it.current();
-    }
-    return NULL;
-}
-
-
-// Count the number of edges in this face.
-uint Face::edgeCount() const
-{
-    uint count = 0;
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) { ++count; }
-    return count;
-}
-
-// Determine if this is a boundary face.
-bool Face::isBoundary() const
-{
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        nvDebugCheck(edge->pair != NULL);
-
-        if (edge->pair->face == NULL) {
-            return true;
-        }
-    }
-    return false;
-}
-
-// Count the number of boundary edges in the face.
-uint Face::boundaryCount() const
-{
-    uint count = 0;
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance())
-    {
-        const Edge * edge = it.current();
-        nvDebugCheck(edge->pair != NULL);
-
-        if (edge->pair->face == NULL) {
-            count++;
-        }
-    }
-    return count;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Face.h b/thirdparty/thekla_atlas/nvmesh/halfedge/Face.h
deleted file mode 100644
index 677f8666f0..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Face.h
+++ /dev/null
@@ -1,106 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_HALFEDGE_FACE_H
-#define NV_MESH_HALFEDGE_FACE_H
-
-#include <nvmesh/halfedge/Edge.h>
-
-namespace nv
-{
-    namespace HalfEdge { class Vertex; class Face; class Edge; }
-
-    /// Face of a half-edge mesh.
-    class HalfEdge::Face
-    {
-        NV_FORBID_COPY(Face);
-    public:
-
-        uint id;
-        uint16 group;
-        uint16 material;
-        Edge * edge;
-
-
-        Face(uint id) : id(id), group(~0), material(~0), edge(NULL) {}
-
-        float area() const;
-        float parametricArea() const;
-        float boundaryLength() const;
-        Vector3 normal() const;
-        Vector3 centroid() const;
-
-        bool isValid() const;
-
-        bool contains(const Edge * e) const;
-        uint edgeIndex(const Edge * e) const;
-        
-        Edge * edgeAt(uint idx);
-        const Edge * edgeAt(uint idx) const;
-
-        uint edgeCount() const;
-        bool isBoundary() const;
-        uint boundaryCount() const;
-
-
-        // The iterator that visits the edges of this face in clockwise order.
-        class EdgeIterator //: public Iterator<Edge *>
-        {
-        public:
-            EdgeIterator(Edge * e) : m_end(NULL), m_current(e) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->next;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual Edge * current() const { return m_current; }
-            Vertex * vertex() const { return m_current->vertex; }
-
-        private:
-            Edge * m_end;
-            Edge * m_current;
-        };
-
-        EdgeIterator edges() { return EdgeIterator(edge); }
-        EdgeIterator edges(Edge * e)
-        { 
-            nvDebugCheck(contains(e));
-            return EdgeIterator(e); 
-        }
-
-        // The iterator that visits the edges of this face in clockwise order.
-        class ConstEdgeIterator //: public Iterator<const Edge *>
-        {
-        public:
-            ConstEdgeIterator(const Edge * e) : m_end(NULL), m_current(e) { }
-            ConstEdgeIterator(const EdgeIterator & it) : m_end(NULL), m_current(it.current()) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->next;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual const Edge * current() const { return m_current; }
-            const Vertex * vertex() const { return m_current->vertex; }
-
-        private:
-            const Edge * m_end;
-            const Edge * m_current;
-        };
-
-        ConstEdgeIterator edges() const { return ConstEdgeIterator(edge); }
-        ConstEdgeIterator edges(const Edge * e) const
-        { 
-            nvDebugCheck(contains(e));
-            return ConstEdgeIterator(e); 
-        }
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_HALFEDGE_FACE_H
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Mesh.cpp b/thirdparty/thekla_atlas/nvmesh/halfedge/Mesh.cpp
deleted file mode 100644
index 0012513bce..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Mesh.cpp
+++ /dev/null
@@ -1,1284 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include "nvmesh.h" // pch
-
-#include "Mesh.h"
-#include "Edge.h"
-#include "Vertex.h"
-#include "Face.h"
-
-#include "nvmesh/TriMesh.h"
-#include "nvmesh/QuadTriMesh.h"
-#include "nvmesh/MeshBuilder.h"
-
-#include "nvmath/Vector.inl"
-#include "nvcore/Array.inl"
-#include "nvcore/HashMap.inl"
-
-
-using namespace nv;
-using namespace HalfEdge;
-
-Mesh::Mesh() : m_colocalVertexCount(0)
-{
-    errorCount = 0;
-}
-
-Mesh::Mesh(const Mesh * mesh)
-{
-    errorCount = 0;
-
-    // Copy mesh vertices.
-    const uint vertexCount = mesh->vertexCount();
-    m_vertexArray.resize(vertexCount);
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        const Vertex * vertex = mesh->vertexAt(v);
-        nvDebugCheck(vertex->id == v);
-
-        m_vertexArray[v] = new Vertex(v);
-        m_vertexArray[v]->pos = vertex->pos;
-        m_vertexArray[v]->nor = vertex->nor;
-        m_vertexArray[v]->tex = vertex->tex;
-    }
-
-    m_colocalVertexCount = vertexCount;
-
-
-    // Copy mesh faces.
-    const uint faceCount = mesh->faceCount();
-
-    Array<uint> indexArray(3);
-
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const Face * face = mesh->faceAt(f);
-
-        for(Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance()) {
-            const Vertex * vertex = it.current()->from();
-            indexArray.append(vertex->id);
-        }
-
-        addFace(indexArray);
-        indexArray.clear();
-    }
-}
-
-Mesh::~Mesh()
-{
-    clear();
-}
-
-
-void Mesh::clear()
-{
-    deleteAll(m_vertexArray); 
-    m_vertexArray.clear();
-
-    foreach(i, m_edgeMap)
-    {
-        delete m_edgeMap[i].value;
-    }
-    //deleteAll(m_edgeArray);	// edgeArray only contains 1/2 of the edges!
-    m_edgeArray.clear();
-    m_edgeMap.clear();
-
-    deleteAll(m_faceArray);
-    m_faceArray.clear();
-}
-
-
-Vertex * Mesh::addVertex(const Vector3 & pos)
-{
-    nvDebugCheck(isFinite(pos));
-
-    Vertex * v = new Vertex(m_vertexArray.count());
-    v->pos = pos;
-    m_vertexArray.append(v);
-
-    return v;
-
-//    return addVertex(m_vertexArray.count(), pos);
-}
-
-/*Vertex * Mesh::addVertex(uint id, const Vector3 & pos)
-{
-    nvDebugCheck(isFinite(pos));
-
-    Vertex * v = new Vertex(id);
-    v->pos = pos;
-    m_vertexArray.append(v);
-
-    return v;
-}*/
-
-/*void Mesh::addVertices(const Mesh * mesh)
-{
-nvCheck(mesh != NULL);
-
-// Add mesh vertices
-for (uint v = 0; v < vertexCount; v++)
-{
-const Vertex * vertex = mesh->vertexAt(v);
-nvDebugCheck(vertex != NULL);
-
-Vertex * v = addVertex(vertex->pos());
-nvDebugCheck(v != NULL);
-
-v->setNor(vertex->nor());
-v->setTex(vertex->tex());
-}
-}*/
-
-
-/// Link colocal vertices based on geometric location only.
-void Mesh::linkColocals()
-{
-    nvDebug("--- Linking colocals:\n");
-
-    const uint vertexCount = this->vertexCount();
-    HashMap<Vector3, Vertex *> vertexMap(vertexCount);
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        Vertex * vertex = vertexAt(v);
-
-        Vertex * colocal;
-        if (vertexMap.get(vertex->pos, &colocal))
-        {
-            colocal->linkColocal(vertex);
-        }
-        else
-        {
-            vertexMap.add(vertex->pos, vertex);
-        }
-    }
-
-    m_colocalVertexCount = vertexMap.count();
-
-    nvDebug("---   %d vertex positions.\n", m_colocalVertexCount);
-
-    // @@ Remove duplicated vertices? or just leave them as colocals?
-}
-
-void Mesh::linkColocalsWithCanonicalMap(const Array<uint> & canonicalMap)
-{
-    nvDebug("--- Linking colocals:\n");
-
-    uint vertexMapSize = 0;
-    foreach(i, canonicalMap) {
-        vertexMapSize = max(vertexMapSize, canonicalMap[i] + 1);
-    }
-    
-    Array<Vertex *> vertexMap;
-    vertexMap.resize(vertexMapSize, NULL);
-
-    m_colocalVertexCount = 0;
-
-    const uint vertexCount = this->vertexCount();
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        Vertex * vertex = vertexAt(v);
-
-        Vertex * colocal = vertexMap[canonicalMap[v]];
-        if (colocal != NULL)
-        {
-            nvDebugCheck(vertex->pos == colocal->pos);
-            colocal->linkColocal(vertex);
-        }
-        else
-        {
-            vertexMap[canonicalMap[v]] = vertex;
-            m_colocalVertexCount++;
-        }
-    }
-
-    nvDebug("---   %d vertex positions.\n", m_colocalVertexCount);
-}
-
-
-Face * Mesh::addFace()
-{
-    Face * f = new Face(m_faceArray.count());
-    m_faceArray.append(f);
-    return f;
-}
-
-Face * Mesh::addFace(uint v0, uint v1, uint v2)
-{
-    Array<uint> indexArray(3);
-    indexArray << v0 << v1 << v2;
-    return addFace(indexArray, 0, 3);
-}
-
-Face * Mesh::addFace(uint v0, uint v1, uint v2, uint v3)
-{
-    Array<uint> indexArray(4);
-    indexArray << v0 << v1 << v2 << v3;
-    return addFace(indexArray, 0, 4);
-}
-
-Face * Mesh::addFace(const Array<uint> & indexArray)
-{
-    return addFace(indexArray, 0, indexArray.count());
-}
-
-
-Face * Mesh::addFace(const Array<uint> & indexArray, uint first, uint num)
-{
-    nvDebugCheck(first < indexArray.count());
-    nvDebugCheck(num <= indexArray.count()-first);
-    nvDebugCheck(num > 2);
-
-    if (!canAddFace(indexArray, first, num)) {
-        errorCount++;
-        return NULL;
-    }
-
-    Face * f = new Face(m_faceArray.count());
-
-    Edge * firstEdge = NULL;
-    Edge * last = NULL;
-    Edge * current = NULL;
-
-    for(uint i = 0; i < num-1; i++)
-    {
-        current = addEdge(indexArray[first+i], indexArray[first+i+1]);
-        nvCheck(current != NULL && current->face == NULL);
-
-        current->face = f;
-
-        if (last != NULL) last->setNext(current);
-        else firstEdge = current;
-
-        last = current;
-    }
-
-    current = addEdge(indexArray[first+num-1], indexArray[first]);
-    nvCheck(current != NULL && current->face == NULL);
-
-    current->face = f;
-
-    last->setNext(current);
-    current->setNext(firstEdge);
-
-    f->edge = firstEdge;
-    m_faceArray.append(f);
-
-    return f;
-}
-
-/*void Mesh::addFaces(const Mesh * mesh)
-{
-nvCheck(mesh != NULL);
-
-Array indexArray;
-// Add faces
-
-}*/
-
-
-// Return true if the face can be added to the manifold mesh.
-bool Mesh::canAddFace(const Array<uint> & indexArray, uint first, uint num) const
-{
-    for (uint j = num - 1, i = 0; i < num; j = i++) {
-        if (!canAddEdge(indexArray[first+j], indexArray[first+i])) {
-            errorIndex0 = indexArray[first+j];
-            errorIndex1 = indexArray[first+i];
-            return false;
-        }
-    }
-
-    // We also have to make sure the face does not have any duplicate edge!
-    for (uint i = 0; i < num; i++) {
-
-        int i0 = indexArray[first + i + 0];
-        int i1 = indexArray[first + (i + 1)%num];
-
-        for (uint j = i + 1; j < num; j++) {
-            int j0 = indexArray[first + j + 0];
-            int j1 = indexArray[first + (j + 1)%num];
-
-            if (i0 == j0 && i1 == j1) {
-                return false;
-            }
-        }
-    }
-
-    return true;
-}
-
-// Return true if the edge doesn't exist or doesn't have any adjacent face. 
-bool Mesh::canAddEdge(uint i, uint j) const
-{
-    if (i == j) {
-        // Skip degenerate edges.
-        return false;
-    }
-
-    // Same check, but taking into account colocal vertices.
-    const Vertex * v0 = vertexAt(i);
-    const Vertex * v1 = vertexAt(j);
-
-    for(Vertex::ConstVertexIterator it(v0->colocals()); !it.isDone(); it.advance())
-    {
-        if (it.current() == v1)
-        {
-            // Skip degenerate edges.
-            return false;
-        }
-    }
-
-    // Make sure edge has not been added yet.
-    Edge * edge = findEdge(i, j);
-
-    return edge == NULL || edge->face == NULL; // We ignore edges that don't have an adjacent face yet, since this face could become the edge's face.
-}
-
-Edge * Mesh::addEdge(uint i, uint j)
-{
-    nvCheck(i != j);
-
-    Edge * edge = findEdge(i, j);
-
-    if (edge != NULL) {
-        // Edge may already exist, but its face must not be set.
-        nvDebugCheck(edge->face == NULL);
-
-        // Nothing else to do!
-
-    }
-    else {
-        // Add new edge.
-
-        // Lookup pair.
-        Edge * pair = findEdge(j, i);
-
-        if (pair != NULL)
-        {
-            // Create edge with same id.
-            edge = new Edge(pair->id + 1);
-
-            // Link edge pairs.
-            edge->pair = pair;
-            pair->pair = edge;
-
-            // @@ I'm not sure this is necessary!
-            pair->vertex->setEdge(pair);
-        }
-        else
-        {
-            // Create edge.
-            edge = new Edge(2*m_edgeArray.count());
-
-            // Add only unpaired edges.
-            m_edgeArray.append(edge);
-        }
-
-        edge->vertex = m_vertexArray[i];
-        m_edgeMap.add(Key(i,j), edge);
-    }
-
-    // Face and Next are set by addFace.
-
-    return edge;
-}
-
-
-/// Find edge, test all colocals.
-Edge * Mesh::findEdge(uint i, uint j) const
-{
-    Edge * edge = NULL;
-
-    const Vertex * v0 = vertexAt(i);
-    const Vertex * v1 = vertexAt(j);
-
-    // Test all colocal pairs.
-    for(Vertex::ConstVertexIterator it0(v0->colocals()); !it0.isDone(); it0.advance())
-    {
-        for(Vertex::ConstVertexIterator it1(v1->colocals()); !it1.isDone(); it1.advance())
-        {
-            Key key(it0.current()->id, it1.current()->id);
-
-            if (edge == NULL) {
-                m_edgeMap.get(key, &edge);
-#if !defined(_DEBUG)
-                if (edge != NULL) return edge;
-#endif
-            }
-            else {
-                // Make sure that only one edge is found.
-                nvDebugCheck(!m_edgeMap.get(key));
-            }
-        }
-    }
-
-    return edge;
-}
-
-/// Link boundary edges once the mesh has been created.
-void Mesh::linkBoundary()
-{
-    nvDebug("--- Linking boundaries:\n");
-
-    int num = 0;
-
-    // Create boundary edges.
-    uint edgeCount = this->edgeCount();
-    for(uint e = 0; e < edgeCount; e++)
-    {
-        Edge * edge = edgeAt(e);
-        if (edge != NULL && edge->pair == NULL) {
-            Edge * pair = new Edge(edge->id + 1);
-
-            uint i = edge->from()->id;
-            uint j = edge->next->from()->id;
-
-            Key key(j,i);
-            nvCheck(!m_edgeMap.get(key));
-
-            pair->vertex = m_vertexArray[j];
-            m_edgeMap.add(key, pair);
-
-            edge->pair = pair;
-            pair->pair = edge;
-
-            num++;
-        }
-    }
-
-    // Link boundary edges.
-    for (uint e = 0; e < edgeCount; e++) {
-        Edge * edge = edgeAt(e);
-        if (edge != NULL && edge->pair->face == NULL) {
-            linkBoundaryEdge(edge->pair);
-        }
-    }
-
-    nvDebug("---   %d boundary edges.\n", num);
-}
-
-/// Link this boundary edge.
-void Mesh::linkBoundaryEdge(Edge * edge)
-{
-    nvCheck(edge->face == NULL);
-
-    // Make sure next pointer has not been set. @@ We want to be able to relink boundary edges after mesh changes.
-    //nvCheck(edge->next() == NULL);
-
-    Edge * next = edge;
-    while(next->pair->face != NULL) {
-        // Get pair prev
-        Edge * e = next->pair->next;
-        while (e->next != next->pair) {
-            e = e->next;
-        }
-        next = e;
-    }
-    edge->setNext(next->pair);
-
-    // Adjust vertex edge, so that it's the boundary edge. (required for isBoundary())
-    if (edge->vertex->edge != edge)
-    {
-        // Multiple boundaries in the same edge.
-        //nvCheck( edge->vertex()->edge() == NULL || edge->vertex()->edge()->face() != NULL );
-        edge->vertex->edge = edge;
-    }
-}
-
-
-/// Convert to tri mesh.
-TriMesh * Mesh::toTriMesh() const
-{
-    uint triangleCount = 0;
-
-    // Count triangle faces.
-    const uint faceCount = this->faceCount();
-    for(uint f = 0; f < faceCount; f++)
-    {
-        const Face * face = faceAt(f);
-        triangleCount += face->edgeCount() - 2;
-    }
-
-    TriMesh * triMesh = new TriMesh(triangleCount, vertexCount());
-
-    // Add vertices.
-    Array<TriMesh::Vertex> & vertices = triMesh->vertices();
-
-    const uint vertexCount = this->vertexCount();
-    for(uint v = 0; v < vertexCount; v++)
-    {
-        const Vertex * vertex = vertexAt(v);
-
-        TriMesh::Vertex triVertex;
-        triVertex.id = vertices.count();
-        triVertex.pos = vertex->pos;
-        triVertex.nor = vertex->nor;
-        triVertex.tex = vertex->tex;
-
-        vertices.append(triVertex);
-    }
-
-    // Add triangles.
-    Array<TriMesh::Face> & triangles = triMesh->faces();
-
-    for(uint f = 0; f < faceCount; f++)
-    {
-        const Face * face = faceAt(f);
-
-        // @@ Triangulate arbitrary polygons correctly.
-        const uint v0 = face->edge->vertex->id;
-        uint v1 = face->edge->next->vertex->id;
-
-        for(Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            uint v2 = it.current()->vertex->id;
-
-            // Skip the first two vertices.
-            if (v2 == v0 || v2 == v1) continue;
-
-            TriMesh::Face triangle;
-            triangle.id = triangles.count();
-            triangle.v[0] = v0;
-            triangle.v[1] = v1;
-            triangle.v[2] = v2;
-
-            v1 = v2;
-
-            triangles.append(triangle);
-        }
-    }
-
-    return triMesh;
-}
-
-QuadTriMesh * Mesh::toQuadTriMesh() const
-{
-    MeshBuilder builder;
-
-    const uint vertexCount = this->vertexCount();
-    builder.hintVertexCount(vertexCount);
-
-    for(uint v = 0; v < vertexCount; v++)
-    {
-        const Vertex * vertex = vertexAt(v);
-
-        builder.addPosition(vertex->pos);
-        builder.addNormal(vertex->nor);
-        builder.addTexCoord(vertex->tex);
-    }
-
-    const uint faceCount = this->faceCount();
-    builder.hintTriangleCount(faceCount);
-
-    for(uint f = 0; f < faceCount; f++)
-    {
-        const Face * face = faceAt(f);
-
-        builder.beginPolygon();
-
-        for(Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            uint v = it.current()->vertex->id;
-            builder.addVertex(v, v, v);
-        }
-
-        builder.endPolygon();
-    }
-
-    builder.done();
-
-    return builder.buildQuadTriMesh();
-}
-
-
-// Triangulate in place.
-void Mesh::triangulate() {
-
-    bool all_triangles = true;
-
-    const uint faceCount = m_faceArray.count();
-    for (uint f = 0; f < faceCount; f++) {
-        Face * face = m_faceArray[f];
-        if (face->edgeCount() != 3) {
-            all_triangles = false;
-            break;
-        }
-    }
-
-    if (all_triangles) {
-        return;
-    }
-
-
-    // Do not touch vertices, but rebuild edges and faces.
-    Array<Edge *> edgeArray;
-    Array<Face *> faceArray;
-
-    swap(edgeArray, m_edgeArray);
-    swap(faceArray, m_faceArray);
-    m_edgeMap.clear();
-
-    for (uint f = 0; f < faceCount; f++) {
-        Face * face = faceArray[f];
-
-        // Trivial fan-like triangulation.
-        const uint v0 = face->edge->vertex->id;
-        uint v2, v1 = -1;
-
-        for (Face::EdgeIterator it(face->edges()); !it.isDone(); it.advance()) {
-            Edge * edge = it.current();
-            v2 = edge->to()->id;
-            if (v2 == v0) break;
-            if (v1 != -1) addFace(v0, v1, v2);
-            v1 = v2;
-        }
-    }
-
-    nvDebugCheck(m_faceArray.count() > faceCount); // triangle count > face count
-
-    linkBoundary();
-
-    deleteAll(edgeArray);
-    deleteAll(faceArray);
-}
-
-
-/*
-Fixing T-junctions.
-
-- Find T-junctions. Find  vertices that are on an edge. 
-    - This test is approximate.
-    - Insert edges on a spatial index to speedup queries.
-    - Consider only open edges, that is edges that have no pairs.
-    - Consider only vertices on boundaries.
-- Close T-junction.
-    - Split edge.
-
-*/
-bool Mesh::splitBoundaryEdges() {
-    
-    Array<Vertex *> boundaryVertices;
-
-    foreach(i, m_vertexArray) {
-        Vertex * v = m_vertexArray[i];
-        if (v->isBoundary()) {
-            boundaryVertices.append(v);
-        }
-    }
-
-    nvDebug("Fixing T-junctions:\n");
-
-    int splitCount = 0;
-
-    foreach(v, boundaryVertices) {
-        Vertex * vertex = boundaryVertices[v];
-
-        Vector3 x0 = vertex->pos;
-
-        // Find edges that this vertex overlaps with.
-        foreach(e, m_edgeArray) {
-        //for (uint e = 0; e < m_edgeArray.count(); e++) {
-            Edge * edge = m_edgeArray[e];
-            if (edge != NULL && edge->isBoundary()) {
-
-                if (edge->from() == vertex || edge->to() == vertex) {
-                    continue;
-                }
-
-                Vector3 x1 = edge->from()->pos;
-                Vector3 x2 = edge->to()->pos;
-
-                Vector3 v01 = x0 - x1;
-                Vector3 v21 = x2 - x1;
-
-                float l = length(v21);
-                float d = length(cross(v01, v21)) / l;
-
-                if (isZero(d)) {
-                    float t = dot(v01, v21) / (l * l);
-
-                    // @@ Snap x0 to x1 or x2, if too close? No, do vertex snapping elsewhere.
-                    /*if (equal(t, 0.0f, 0.01f)) {
-                        //vertex->setPos(x1);
-                    }
-                    else if (equal(t, 1.0f, 0.01f)) {
-                        //vertex->setPos(x2);
-                    }
-                    else*/
-                    if (t > 0.0f + NV_EPSILON && t < 1.0f - NV_EPSILON) {
-                        nvDebugCheck(equal(lerp(x1, x2, t), x0));
-
-                        Vertex * splitVertex = splitBoundaryEdge(edge, t, x0);
-                        vertex->linkColocal(splitVertex);   // @@ Should we do this here?
-                        splitCount++;
-                    }
-                }
-            }
-        }
-    }
-
-    nvDebug(" - %d edges split.\n", splitCount);
-
-    nvDebugCheck(isValid());
-
-    return splitCount != 0;
-}
-
-
-// For this to be effective, we have to fix the boundary junctions first.
-Edge * Mesh::sewBoundary(Edge * startEdge) {
-    nvDebugCheck(startEdge->face == NULL);
-
-    // @@ We may want to be more conservative linking colocals in order to preserve the input topology. One way of doing that is by linking colocals only 
-    // if the vertices next to them are linked as well. That is, by sewing boundaries after detecting them. If any pair of consecutive edges have their first
-    // and last vertex in the same position, then it can be linked.
-
-    Edge * lastBoundarySeen = startEdge;
-
-    nvDebug("Sewing Boundary:\n");
-
-    int count = 0;
-    int sewnCount = 0;
-
-    Edge * edge = startEdge;
-    do {
-        nvDebugCheck(edge->face == NULL);
-
-        Edge * edge_a = edge;
-        Edge * edge_b = edge->prev;
-
-        Edge * pair_a = edge_a->pair;
-        Edge * pair_b = edge_b->pair;
-
-        Vertex * v0a = edge_a->to();
-        Vertex * v0b = edge_b->from();
-        Vertex * v1a = edge_a->from();
-        Vertex * v1b = edge_b->to();
-
-        nvDebugCheck(v1a->isColocal(v1b));
-
-        /*
-        v0b +      _+ v0a
-             \     /
-            b \   / a
-               \|/
-            v1b + v1a
-        */
-
-        // @@ This should not happen while sewing, but it may be produced somewhere else.
-        nvDebugCheck(edge_a != edge_b);
-
-        if (v0a->pos == v0b->pos) {
-
-            // Link vertices.
-            v0a->linkColocal(v0b);
-            
-            // Remove edges to be collapsed.
-            disconnect(edge_a);
-            disconnect(edge_b);
-            disconnect(pair_a);
-            disconnect(pair_b);
-
-            // Link new boundary edges.
-            Edge * prevBoundary = edge_b->prev;
-            Edge * nextBoundary = edge_a->next;
-            if (nextBoundary != NULL) {
-                nvDebugCheck(nextBoundary->face == NULL);
-                nvDebugCheck(prevBoundary->face == NULL);
-                nextBoundary->setPrev(prevBoundary);
-            
-                // Make sure boundary vertex points to boundary edge.
-                v0a->setEdge(nextBoundary); // This updates all colocals.
-            }
-            lastBoundarySeen = prevBoundary;
-
-            // Creat new edge.
-            Edge * newEdge_a = addEdge(v0a->id, v1a->id);   // pair_a->from()->id, pair_a->to()->id
-            Edge * newEdge_b = addEdge(v1b->id, v0b->id);
-
-            newEdge_a->pair = newEdge_b;
-            newEdge_b->pair = newEdge_a;
-
-            newEdge_a->face = pair_a->face;
-            newEdge_b->face = pair_b->face;
-
-            newEdge_a->setNext(pair_a->next);
-            newEdge_a->setPrev(pair_a->prev);
-
-            newEdge_b->setNext(pair_b->next);
-            newEdge_b->setPrev(pair_b->prev);
-
-            delete edge_a;
-            delete edge_b;
-            delete pair_a;
-            delete pair_b;
-
-            edge = nextBoundary;    // If nextBoundary is NULL we have closed the loop.
-            sewnCount++;
-        }
-        else {
-            edge = edge->next;
-        }
-        
-        count++;
-    } while(edge != NULL && edge != lastBoundarySeen);
-
-    nvDebug(" - Sewn %d out of %d.\n", sewnCount, count);
-
-    if (lastBoundarySeen != NULL) {
-        nvDebugCheck(lastBoundarySeen->face == NULL);
-    }
-
-    return lastBoundarySeen;
-}
-
-
-// @@ We must always disconnect edge pairs simultaneously.
-void Mesh::disconnect(Edge * edge) {
-    nvDebugCheck(edge != NULL);
-
-    // Remove from edge list.
-    if ((edge->id & 1) == 0) {
-        nvDebugCheck(m_edgeArray[edge->id / 2] == edge);
-        m_edgeArray[edge->id / 2] = NULL;
-    }
-
-    // Remove edge from map. @@ Store map key inside edge?
-    nvDebugCheck(edge->from() != NULL && edge->to() != NULL);
-    bool removed = m_edgeMap.remove(Key(edge->from()->id, edge->to()->id));
-    nvDebugCheck(removed == true);
-
-    // Disconnect from vertex.
-    if (edge->vertex != NULL) {
-        if (edge->vertex->edge == edge) {
-            if (edge->prev && edge->prev->pair) {
-                edge->vertex->edge = edge->prev->pair;
-            }
-            else if (edge->pair && edge->pair->next) {
-                edge->vertex->edge = edge->pair->next;
-            }
-            else {
-                edge->vertex->edge = NULL;
-                // @@ Remove disconnected vertex?
-            }
-        }
-        //edge->setVertex(NULL);
-    }
-
-    // Disconnect from face.
-    if (edge->face != NULL) {
-        if (edge->face->edge == edge) {
-            if (edge->next != NULL && edge->next != edge) {
-                edge->face->edge = edge->next;
-            }
-            else if (edge->prev != NULL && edge->prev != edge) {
-                edge->face->edge = edge->prev;
-            }
-            else {
-                edge->face->edge = NULL;
-                // @@ Remove disconnected face?
-            }
-        }
-        //edge->setFace(NULL);
-    }
-
-    // @@ Hack, we don't disconnect from pair, because pair needs us to remove itself from the map.
-    // Disconect from pair.
-    /*if (edge->pair != NULL) {
-        if (edge->pair->pair == edge) {
-            edge->pair->setPair(NULL);
-        }
-        //edge->setPair(NULL);
-    }*/
-
-    // Disconnect from previous.
-    if (edge->prev) {
-        if (edge->prev->next == edge) {
-            edge->prev->setNext(NULL);
-        }
-        //edge->setPrev(NULL);
-    }
-
-    // Disconnect from next.
-    if (edge->next) {
-        if (edge->next->prev == edge) {
-            edge->next->setPrev(NULL);
-        }
-        //edge->setNext(NULL);
-    }
-}
-
-
-void Mesh::remove(Edge * edge) {
-    nvDebugCheck(edge != NULL);
-
-    disconnect(edge);
-
-    delete edge;
-}
-
-void Mesh::remove(Vertex * vertex) {
-    nvDebugCheck(vertex != NULL);
-
-    // Remove from vertex list.
-    m_vertexArray[vertex->id] = NULL;
-
-    // Disconnect from colocals.
-    vertex->unlinkColocal();
-
-    // Disconnect from edges.
-    if (vertex->edge != NULL) {
-        // @@ Removing a connected vertex is asking for trouble...
-        if (vertex->edge->vertex == vertex) {
-            // @@ Connect edge to a colocal?
-            vertex->edge->vertex = NULL;
-        }
-
-        vertex->setEdge(NULL);
-    }
-
-    delete vertex;
-}
-
-void Mesh::remove(Face * face) {
-    nvDebugCheck(face != NULL);
-
-    // Remove from face list.
-    m_faceArray[face->id] = NULL;
-
-    // Disconnect from edges.
-    if (face->edge != NULL) {
-        nvDebugCheck(face->edge->face == face);
-
-        face->edge->face = NULL;
-
-        face->edge = NULL;
-    }
-
-    delete face;
-}
-
-
-void Mesh::compactEdges() {
-    const uint edgeCount = m_edgeArray.count();
-
-    uint c = 0;
-    for (uint i = 0; i < edgeCount; i++) {
-        if (m_edgeArray[i] != NULL) {
-            if (i != c) {
-                m_edgeArray[c] = m_edgeArray[i];
-                m_edgeArray[c]->id = 2 * c;
-                if (m_edgeArray[c]->pair != NULL) {
-                    m_edgeArray[c]->pair->id = 2 * c + 1;
-                }
-            }
-            c++;
-        }
-    }
-
-    m_edgeArray.resize(c);
-}
-
-
-void Mesh::compactVertices() {
-    const uint vertexCount = m_vertexArray.count();
-
-    uint c = 0;
-    for (uint i = 0; i < vertexCount; i++) {
-        if (m_vertexArray[i] != NULL) {
-            if (i != c) {
-                m_vertexArray[c] = m_vertexArray[i];
-                m_vertexArray[c]->id = c;
-            }
-            c++;
-        }
-    }
-
-    m_vertexArray.resize(c);
-
-    // @@ Generate xref array for external attributes.
-}
-
-
-void Mesh::compactFaces() {
-    const uint faceCount = m_faceArray.count();
-
-    uint c = 0;
-    for (uint i = 0; i < faceCount; i++) {
-        if (m_faceArray[i] != NULL) {
-            if (i != c) {
-                m_faceArray[c] = m_faceArray[i];
-                m_faceArray[c]->id = c;
-            }
-            c++;
-        }
-    }
-
-    m_faceArray.resize(c);
-}
-
-
-Vertex * Mesh::splitBoundaryEdge(Edge * edge, float t, const Vector3 & pos) {
-
-    /*
-      We want to go from this configuration:
-           
-            +   +
-            |   ^
-       edge |<->|  pair
-            v   |
-            +   +
-      
-      To this one:
-
-            +   +
-            |   ^
-         e0 |<->| p0
-            v   |
-     vertex +   + 
-            |   ^
-         e1 |<->| p1
-            v   |
-            +   +
-
-    */
-
-
-    Edge * pair = edge->pair;
-
-    // Make sure boundaries are linked.
-    nvDebugCheck(pair != NULL); 
-
-    // Make sure edge is a boundary edge.
-    nvDebugCheck(pair->face == NULL);
-
-    // Add new vertex.
-    Vertex * vertex = addVertex(pos);
-    vertex->nor = lerp(edge->from()->nor, edge->to()->nor, t);
-    vertex->tex = lerp(edge->from()->tex, edge->to()->tex, t);
-    vertex->col = lerp(edge->from()->col, edge->to()->col, t);
-
-    disconnect(edge);
-    disconnect(pair);
-
-    // Add edges.
-    Edge * e0 = addEdge(edge->from()->id, vertex->id);
-    Edge * p0 = addEdge(vertex->id, pair->to()->id);
-
-    Edge * e1 = addEdge(vertex->id, edge->to()->id);
-    Edge * p1 = addEdge(pair->from()->id, vertex->id);
-
-    // Link edges.
-    e0->setNext(e1);
-    p1->setNext(p0);
-
-    e0->setPrev(edge->prev);
-    e1->setNext(edge->next);
-
-    p1->setPrev(pair->prev);
-    p0->setNext(pair->next);
-
-    nvDebugCheck(e0->next == e1);
-    nvDebugCheck(e1->prev == e0);
-
-    nvDebugCheck(p1->next == p0);
-    nvDebugCheck(p0->prev == p1);
-
-    nvDebugCheck(p0->pair == e0);
-    nvDebugCheck(e0->pair == p0);
-
-    nvDebugCheck(p1->pair == e1);
-    nvDebugCheck(e1->pair == p1);
-
-    // Link faces.
-    e0->face = edge->face;
-    e1->face = edge->face;
-
-    // Link vertices.
-    edge->from()->setEdge(e0);
-    vertex->setEdge(e1);
-
-    delete edge;
-    delete pair;
-
-    return vertex;
-}
-
-#if 0
-// Without introducing new vertices.
-void Mesh::splitBoundaryEdge(Edge * edge, Vertex * vertex) {
-
-    /*
-      We want to go from this configuration:
-
-            |   | pn
-            +   +
-            |   ^
-            |   |
-       edge |<->| pair
-            |   |
-            v   |
-            +   +
-            |   | pp
-      
-      To this one:
-          \       /
-           \     /
-            +   +
-            |   ^
-         e0 |<->| p0
-            v   |
-     vertex +   + 
-            |   ^
-         e1 |<->| p1
-            v   |
-            +   +
-           /     \
-          /       \
-    */
-
-
-    Edge * pair = edge->pair;
-    Edge * pn = pair->next();
-    Edge * pp = pair->prev();
-
-    // Make sure boundaries are linked.
-    nvDebugCheck(pair != NULL);
-
-    // Make sure edge is a boundary edge.
-    nvDebugCheck(pair->face() == NULL);
-
-    nvDebugCheck(edge->isValid());
-    nvDebugCheck(pair->isValid());
-
-    disconnect(edge);
-    disconnect(pair);
-
-    // Add edges.
-    Edge * e0 = addEdge(edge->from()->id(), vertex->id());
-    Edge * e1 = addEdge(vertex->id(), edge->to()->id());
-
-    // Link faces.
-    e0->setFace(edge->face());
-    e1->setFace(edge->face());
-
-    // Link pairs.
-    Edge * p0 = findEdge(vertex->id(), pair->to()->id());
-    if (p0 == NULL) {
-        p0 = addEdge(vertex->id(), pair->to()->id());
-        pn->setPrev(p0);
-    }
-    else {
-        nvDebugCheck(p0->face() != NULL);
-        if (e0->prev() != NULL) {
-            pn->setPrev(e0->prev());
-        }
-        else {
-            nvDebugCheck(pn == e0);
-        }
-    }
-    
-    Edge * p1 = findEdge(pair->from()->id(), vertex->id());
-    if (p1 == NULL) {
-        p1 = addEdge(pair->from()->id(), vertex->id());
-        pp->setNext(p1);
-    }
-    else {
-        nvDebugCheck(p1->face() != NULL);
-        if (e1->next() != NULL) {
-            pp->setPrev(e1->next());
-        }
-        else {
-            nvDebugCheck(pp == e1);
-        }
-    }
-
-    // Link edges.
-    e0->setNext(e1); // e1->setPrev(e0)
-
-    if (p0->face() == p1->face()) { // can be null
-        p1->setNext(p0); // p0->setPrev(p1)
-    }
-    else {
-        //if (p1->face() == NULL) p1->setNext(
-    }
-    
-
-    e0->setPrev(edge->prev());
-    e1->setNext(edge->next());
-
-    nvDebugCheck(e0->pair == p0);
-    nvDebugCheck(e1->pair == p1);
-    nvDebugCheck(p0->pair == e0);
-    nvDebugCheck(p1->pair == e1);
-
-    nvDebugCheck(e0->isValid());
-    nvDebugCheck(e1->isValid());
-    nvDebugCheck(pp->isValid());
-    nvDebugCheck(pn->isValid());
-
-    nvDebugCheck(e0->pair->isValid());
-    nvDebugCheck(e1->pair->isValid());
-    nvDebugCheck(pp->pair->isValid());
-    nvDebugCheck(pn->pair->isValid());
-
-    nvDebugCheck(edge->face->isValid());
-
-    if (pn->pair->face != NULL) {
-        nvDebugCheck(pn->pair->face->isValid());
-    }
-
-    if (pp->pair->face() != NULL) {
-        nvDebugCheck(pn->pair->face->isValid());
-    }
-
-    if (p0->face != NULL) {
-        nvDebugCheck(p0->face->isValid());
-    }
-
-    if (p1->face() != NULL) {
-        nvDebugCheck(p1->face()->isValid());
-    }
-
-    nvDebugCheck(isValid()); // Only for extreme debugging.
-
-    // Link vertices.
-    edge->from()->setEdge(e0);
-    vertex->setEdge(p0);
-
-    delete edge;
-    delete pair;
-}
-#endif
-
-bool Mesh::isValid() const
-{
-    // Make sure all edges are valid.
-    const uint edgeCount = m_edgeArray.count();
-    for (uint e = 0; e < edgeCount; e++) {
-        Edge * edge = m_edgeArray[e];
-        if (edge != NULL) {
-            if (edge->id != 2*e) {
-                return false;
-            }
-            if (!edge->isValid()) {
-                return false;
-            }
-
-            if (edge->pair->id != 2*e+1) {
-                return false;
-            }
-            if (!edge->pair->isValid()) {
-                return false;
-            }
-        }
-    }
-
-    // @@ Make sure all faces are valid.
-
-    // @@ Make sure all vertices are valid.
-
-    return true;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Mesh.h b/thirdparty/thekla_atlas/nvmesh/halfedge/Mesh.h
deleted file mode 100644
index c202c2ef9a..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Mesh.h
+++ /dev/null
@@ -1,274 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_HALFEDGE_MESH_H
-#define NV_MESH_HALFEDGE_MESH_H
-
-#include "nvmesh/nvmesh.h"
-#include "nvcore/Array.h"
-#include "nvcore/HashMap.h"
-
-/*
-If I were to redo this again, there are a number of things that I would do differently.
-- Edge map is only useful when importing a mesh to guarantee the result is two-manifold. However, when manipulating the mesh
-  it's a pain to maintain the map up to date.
-- Edge array only points to the even vertices. There's no good reason for that. The map becomes required to traverse all edges
-  or you have to make sure edges are properly paired.
-- Linked boundaries. It's cleaner to assume a NULL pair means a boundary edge. Makes easier to seal boundaries. The only reason
-  why we link boundaries is to simplify traversal, but that could be done with two helper functions (nextBoundary, prevBoundary).
-- Minimize the amount of state that needs to be set in a certain way:
-    - boundary vertices point to boundary edge.
-- Remove parenthesis! Make some members public.
-- Remove member functions with side effects:
-    - e->setNext(n) modifies e->next and n->prev, instead use "link(e, n)", or "e->next = n, n->prev = e"
-*/
-
-
-namespace nv
-{
-    class Vector3;
-    class TriMesh;
-    class QuadTriMesh;
-    //template <typename T> struct Hash<Mesh::Key>;
-
-    namespace HalfEdge
-    {
-        class Edge;
-        class Face;
-        class Vertex;
-
-        /// Simple half edge mesh designed for dynamic mesh manipulation.
-        class Mesh
-        {
-        public:
-
-            Mesh();
-            Mesh(const Mesh * mesh);
-            ~Mesh();
-
-            void clear();
-
-            Vertex * addVertex(const Vector3 & pos);
-            //Vertex * addVertex(uint id, const Vector3 & pos);
-            //void addVertices(const Mesh * mesh);
-
-            void linkColocals();
-            void linkColocalsWithCanonicalMap(const Array<uint> & canonicalMap);
-            void resetColocalLinks();
-
-            Face * addFace();
-            Face * addFace(uint v0, uint v1, uint v2);
-            Face * addFace(uint v0, uint v1, uint v2, uint v3);
-            Face * addFace(const Array<uint> & indexArray);
-            Face * addFace(const Array<uint> & indexArray, uint first, uint num);
-            //void addFaces(const Mesh * mesh);
-
-            // These functions disconnect the given element from the mesh and delete it.
-            void disconnect(Edge * edge);
-            void disconnectPair(Edge * edge);
-            void disconnect(Vertex * vertex);
-            void disconnect(Face * face);
-
-            void remove(Edge * edge);
-            void remove(Vertex * vertex);
-            void remove(Face * face);
-
-            // Remove holes from arrays and reassign indices.
-            void compactEdges();
-            void compactVertices();
-            void compactFaces();
-
-            void triangulate();
-
-            void linkBoundary();
-            
-            bool splitBoundaryEdges(); // Returns true if any split was made.
-
-            // Sew the boundary that starts at the given edge, returns one edge that still belongs to boundary, or NULL if boundary closed.
-            HalfEdge::Edge * sewBoundary(Edge * startEdge);
-
-
-            // Vertices
-            uint vertexCount() const { return m_vertexArray.count(); }
-            const Vertex * vertexAt(int i) const { return m_vertexArray[i]; }
-            Vertex * vertexAt(int i) { return m_vertexArray[i]; }
-
-            uint colocalVertexCount() const { return m_colocalVertexCount; }
-
-            // Faces
-            uint faceCount() const { return m_faceArray.count(); }
-            const Face * faceAt(int i) const { return m_faceArray[i]; }
-            Face * faceAt(int i) { return m_faceArray[i]; }
-
-            // Edges
-            uint edgeCount() const { return m_edgeArray.count();  }
-            const Edge * edgeAt(int i) const { return m_edgeArray[i]; }
-            Edge * edgeAt(int i) { return m_edgeArray[i]; }
-
-            class ConstVertexIterator;
-
-            class VertexIterator
-            {
-                friend class ConstVertexIterator;
-            public:
-                VertexIterator(Mesh * mesh) : m_mesh(mesh), m_current(0) { }
-
-                virtual void advance() { m_current++; }
-                virtual bool isDone() const { return m_current == m_mesh->vertexCount(); }
-                virtual Vertex * current() const { return m_mesh->vertexAt(m_current); }
-
-            private:
-                HalfEdge::Mesh * m_mesh;
-                uint m_current;
-            };
-            VertexIterator vertices() { return VertexIterator(this); }
-
-            class ConstVertexIterator
-            {
-            public:
-                ConstVertexIterator(const Mesh * mesh) : m_mesh(mesh), m_current(0) { }
-                ConstVertexIterator(class VertexIterator & it) : m_mesh(it.m_mesh), m_current(it.m_current) { }
-
-                virtual void advance() { m_current++; }
-                virtual bool isDone() const { return m_current == m_mesh->vertexCount(); }
-                virtual const Vertex * current() const { return m_mesh->vertexAt(m_current); }
-
-            private:
-                const HalfEdge::Mesh * m_mesh;
-                uint m_current;
-            };
-            ConstVertexIterator vertices() const { return ConstVertexIterator(this); }
-
-            class ConstFaceIterator;
-
-            class FaceIterator
-            {
-                friend class ConstFaceIterator;
-            public:
-                FaceIterator(Mesh * mesh) : m_mesh(mesh), m_current(0) { }
-
-                virtual void advance() { m_current++; }
-                virtual bool isDone() const { return m_current == m_mesh->faceCount(); }
-                virtual Face * current() const { return m_mesh->faceAt(m_current); }
-
-            private:
-                HalfEdge::Mesh * m_mesh;
-                uint m_current;
-            };
-            FaceIterator faces() { return FaceIterator(this); }
-
-            class ConstFaceIterator
-            {
-            public:
-                ConstFaceIterator(const Mesh * mesh) : m_mesh(mesh), m_current(0) { }
-                ConstFaceIterator(const FaceIterator & it) : m_mesh(it.m_mesh), m_current(it.m_current) { }
-
-                virtual void advance() { m_current++; }
-                virtual bool isDone() const { return m_current == m_mesh->faceCount(); }
-                virtual const Face * current() const { return m_mesh->faceAt(m_current); }
-
-            private:
-                const HalfEdge::Mesh * m_mesh;
-                uint m_current;
-            };
-            ConstFaceIterator faces() const { return ConstFaceIterator(this); }
-
-            class ConstEdgeIterator;
-
-            class EdgeIterator
-            {
-                friend class ConstEdgeIterator;
-            public:
-                EdgeIterator(Mesh * mesh) : m_mesh(mesh), m_current(0) { }
-
-                virtual void advance() { m_current++; }
-                virtual bool isDone() const { return m_current == m_mesh->edgeCount(); }
-                virtual Edge * current() const { return m_mesh->edgeAt(m_current); }
-
-            private:
-                HalfEdge::Mesh * m_mesh;
-                uint m_current;
-            };
-            EdgeIterator edges() { return EdgeIterator(this); }
-
-            class ConstEdgeIterator
-            {
-            public:
-                ConstEdgeIterator(const Mesh * mesh) : m_mesh(mesh), m_current(0) { }
-                ConstEdgeIterator(const EdgeIterator & it) : m_mesh(it.m_mesh), m_current(it.m_current) { }
-
-                virtual void advance() { m_current++; }
-                virtual bool isDone() const { return m_current == m_mesh->edgeCount(); }
-                virtual const Edge * current() const { return m_mesh->edgeAt(m_current); }
-
-            private:
-                const HalfEdge::Mesh * m_mesh;
-                uint m_current;
-            };
-            ConstEdgeIterator edges() const { return ConstEdgeIterator(this); }
-
-            // @@ Add half-edge iterator.
-
-
-
-            // Convert to tri mesh.
-            TriMesh * toTriMesh() const;
-            QuadTriMesh * toQuadTriMesh() const;
-
-            bool isValid() const;
-
-        public:
-
-            // Error status:
-            mutable uint errorCount;
-            mutable uint errorIndex0;
-            mutable uint errorIndex1;
-
-        private:
-
-            bool canAddFace(const Array<uint> & indexArray, uint first, uint num) const;
-            bool canAddEdge(uint i, uint j) const;
-            Edge * addEdge(uint i, uint j);
-
-            Edge * findEdge(uint i, uint j) const;
-
-            void linkBoundaryEdge(Edge * edge);
-            Vertex * splitBoundaryEdge(Edge * edge, float t, const Vector3 & pos);
-            void splitBoundaryEdge(Edge * edge, Vertex * vertex);
-
-        private:
-
-            Array<Vertex *> m_vertexArray;
-            Array<Edge *> m_edgeArray;
-            Array<Face *> m_faceArray;
-
-            struct Key {
-                Key() {}
-                Key(const Key & k) : p0(k.p0), p1(k.p1) {}
-                Key(uint v0, uint v1) : p0(v0), p1(v1) {}
-                void operator=(const Key & k) { p0 = k.p0; p1 = k.p1; }
-                bool operator==(const Key & k) const { return p0 == k.p0 && p1 == k.p1; }
-
-                uint p0;
-                uint p1;
-            };
-            friend struct Hash<Mesh::Key>;
-
-            HashMap<Key, Edge *> m_edgeMap;
-
-            uint m_colocalVertexCount;
-
-        };
-        /*
-        // This is a much better hash than the default and greatly improves performance!
-        template <> struct hash<Mesh::Key>
-        {
-        uint operator()(const Mesh::Key & k) const { return k.p0 + k.p1; }
-        };
-        */
-
-    } // HalfEdge namespace
-
-} // nv namespace
-
-#endif // NV_MESH_HALFEDGE_MESH_H
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Vertex.cpp b/thirdparty/thekla_atlas/nvmesh/halfedge/Vertex.cpp
deleted file mode 100644
index 66dad69f8a..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Vertex.cpp
+++ /dev/null
@@ -1,94 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh.h" // pch
-
-#include "Vertex.h"
-
-#include "nvmath/Vector.inl"
-
-using namespace nv;
-using namespace HalfEdge;
-
-
-// Set first edge of all colocals.
-void Vertex::setEdge(Edge * e)
-{
-    for (VertexIterator it(colocals()); !it.isDone(); it.advance()) { 
-        it.current()->edge = e;
-    }
-}
-
-// Update position of all colocals.
-void Vertex::setPos(const Vector3 & p)
-{
-    for (VertexIterator it(colocals()); !it.isDone(); it.advance()) {
-        it.current()->pos = p;
-    }
-}
-
-
-uint HalfEdge::Vertex::colocalCount() const
-{
-    uint count = 0;
-    for (ConstVertexIterator it(colocals()); !it.isDone(); it.advance()) { ++count; }
-    return count;
-}
-
-uint HalfEdge::Vertex::valence() const
-{
-    uint count = 0;
-    for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) { ++count; }
-    return count;
-}
-
-const HalfEdge::Vertex * HalfEdge::Vertex::firstColocal() const
-{
-    uint firstId = id;
-    const Vertex * vertex = this;
-
-    for (ConstVertexIterator it(colocals()); !it.isDone(); it.advance())
-    {
-        if (it.current()->id < firstId) {
-            firstId = vertex->id;
-            vertex = it.current();
-        }
-    }
-
-    return vertex;
-}
-
-HalfEdge::Vertex * HalfEdge::Vertex::firstColocal()
-{
-    Vertex * vertex = this;
-    uint firstId = id;
-
-    for (VertexIterator it(colocals()); !it.isDone(); it.advance())
-    {
-        if (it.current()->id < firstId) {
-            firstId = vertex->id;
-            vertex = it.current();
-        }
-    }
-
-    return vertex;
-}
-
-bool HalfEdge::Vertex::isFirstColocal() const
-{
-    return firstColocal() == this;
-}
-
-bool HalfEdge::Vertex::isColocal(const Vertex * v) const {
-    if (this == v) return true;
-    if (pos != v->pos) return false;
-
-    for (ConstVertexIterator it(colocals()); !it.isDone(); it.advance())
-    {
-        if (v == it.current()) {
-            return true;
-        }
-    }
-
-    return false;
-}
-
diff --git a/thirdparty/thekla_atlas/nvmesh/halfedge/Vertex.h b/thirdparty/thekla_atlas/nvmesh/halfedge/Vertex.h
deleted file mode 100644
index 1c5c8d7141..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/halfedge/Vertex.h
+++ /dev/null
@@ -1,221 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_HALFEDGE_VERTEX_H
-#define NV_MESH_HALFEDGE_VERTEX_H
-
-#include "nvmesh/halfedge/Edge.h"
-
-namespace nv
-{
-    namespace HalfEdge { class Vertex; class Face; class Edge; }
-
-    // Half edge vertex.
-    class HalfEdge::Vertex
-    {
-        NV_FORBID_COPY(Vertex);
-    public:
-
-        uint id;
-
-        Edge * edge;
-        Vertex * next;
-        Vertex * prev;
-
-        Vector3 pos;
-        Vector3 nor;
-        Vector2 tex;
-        Vector4 col;
-
-
-        Vertex(uint id) : id(id), edge(NULL), pos(0.0f), nor(0.0f), tex(0.0f), col(0.0f) {
-            next = this;
-            prev = this;
-        }
-
-
-        void setEdge(Edge * e);
-        void setPos(const Vector3 & p);
-
-        uint colocalCount() const;
-        uint valence() const;
-        bool isFirstColocal() const;
-        const Vertex * firstColocal() const;
-        Vertex * firstColocal();
-
-        bool isColocal(const Vertex * v) const;
-
-        
-        void linkColocal(Vertex * v) {
-            next->prev = v;
-            v->next = next; 
-            next = v;
-            v->prev = this;
-        }
-        void unlinkColocal() {
-            next->prev = prev;
-            prev->next = next;
-            next = this;
-            prev = this;
-        }
-
-
-        // @@ Note: This only works if linkBoundary has been called.
-        bool isBoundary() const {
-            return (edge && !edge->face);
-        }
-
-
-        //	for(EdgeIterator it(iterator()); !it.isDone(); it.advance()) { ... }
-        //
-        //	EdgeIterator it(iterator());
-        //	while(!it.isDone()) {
-        //		...
-        //		id.advance(); 
-        //	}
-
-        // Iterator that visits the edges around this vertex in counterclockwise order.
-        class EdgeIterator //: public Iterator<Edge *>
-        {
-        public:
-            EdgeIterator(Edge * e) : m_end(NULL), m_current(e) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->pair->next;
-                //m_current = m_current->prev->pair;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual Edge * current() const { return m_current; }
-            Vertex * vertex() const { return m_current->vertex; }
-
-        private:
-            Edge * m_end;
-            Edge * m_current;
-        };
-
-        EdgeIterator edges() { return EdgeIterator(edge); }
-        EdgeIterator edges(Edge * e) { return EdgeIterator(e); }
-
-        // Iterator that visits the edges around this vertex in counterclockwise order.
-        class ConstEdgeIterator //: public Iterator<Edge *>
-        {
-        public:
-            ConstEdgeIterator(const Edge * e) : m_end(NULL), m_current(e) { }
-            ConstEdgeIterator(EdgeIterator it) : m_end(NULL), m_current(it.current()) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->pair->next;
-                //m_current = m_current->prev->pair;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual const Edge * current() const { return m_current; }
-            const Vertex * vertex() const { return m_current->to(); }
-
-        private:
-            const Edge * m_end;
-            const Edge * m_current;
-        };
-
-        ConstEdgeIterator edges() const { return ConstEdgeIterator(edge); }
-        ConstEdgeIterator edges(const Edge * e) const { return ConstEdgeIterator(e); }
-
-
-        // Iterator that visits the edges around this vertex in counterclockwise order.
-        class ReverseEdgeIterator //: public Iterator<Edge *>
-        {
-        public:
-            ReverseEdgeIterator(Edge * e) : m_end(NULL), m_current(e) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->prev->pair;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual Edge * current() const { return m_current; }
-            Vertex * vertex() const { return m_current->vertex; }
-
-        private:
-            Edge * m_end;
-            Edge * m_current;
-        };
-
-        // Iterator that visits the edges around this vertex in counterclockwise order.
-        class ReverseConstEdgeIterator //: public Iterator<Edge *>
-        {
-        public:
-            ReverseConstEdgeIterator(const Edge * e) : m_end(NULL), m_current(e) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->prev->pair;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual const Edge * current() const { return m_current; }
-            const Vertex * vertex() const { return m_current->to(); }
-
-        private:
-            const Edge * m_end;
-            const Edge * m_current;
-        };
-
-
-
-        // Iterator that visits all the colocal vertices.
-        class VertexIterator //: public Iterator<Edge *>
-        {
-        public:
-            VertexIterator(Vertex * v) : m_end(NULL), m_current(v) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->next;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual Vertex * current() const { return m_current; }
-
-        private:
-            Vertex * m_end;
-            Vertex * m_current;
-        };
-
-        VertexIterator colocals() { return VertexIterator(this); }
-
-        // Iterator that visits all the colocal vertices.
-        class ConstVertexIterator //: public Iterator<Edge *>
-        {
-        public:
-            ConstVertexIterator(const Vertex * v) : m_end(NULL), m_current(v) { }
-
-            virtual void advance()
-            {
-                if (m_end == NULL) m_end = m_current;
-                m_current = m_current->next;
-            }
-
-            virtual bool isDone() const { return m_end == m_current; }
-            virtual const Vertex * current() const { return m_current; }
-
-        private:
-            const Vertex * m_end;
-            const Vertex * m_current;
-        };
-
-        ConstVertexIterator colocals() const { return ConstVertexIterator(this); }
-
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_HALFEDGE_VERTEX_H
diff --git a/thirdparty/thekla_atlas/nvmesh/nvmesh.cpp b/thirdparty/thekla_atlas/nvmesh/nvmesh.cpp
deleted file mode 100644
index d007eda332..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/nvmesh.cpp
+++ /dev/null
@@ -1,2 +0,0 @@
-#include "nvmesh.h" // pch
-
diff --git a/thirdparty/thekla_atlas/nvmesh/nvmesh.h b/thirdparty/thekla_atlas/nvmesh/nvmesh.h
deleted file mode 100644
index eb6819675d..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/nvmesh.h
+++ /dev/null
@@ -1,34 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_H
-#define NV_MESH_H
-
-#include "nvcore/nvcore.h"
-
-// Function linkage
-#if NVMESH_SHARED
-#ifdef NVMESH_EXPORTS
-#define NVMESH_API DLL_EXPORT
-#define NVMESH_CLASS DLL_EXPORT_CLASS
-#else
-#define NVMESH_API DLL_IMPORT
-#define NVMESH_CLASS DLL_IMPORT
-#endif
-#else
-#define NVMESH_API
-#define NVMESH_CLASS
-#endif
-
-#if 1 //USE_PRECOMPILED_HEADERS // If using precompiled headers:
-//#include <string.h> // strlen, strcmp, etc.
-//#include "nvcore/StrLib.h"
-//#include "nvcore/StdStream.h"
-//#include "nvcore/Memory.h"
-//#include "nvcore/Debug.h"
-//#include "nvmath/Vector.h"
-//#include "nvcore/Array.h"
-//#include "nvcore/HashMap.h"
-#endif
-
-#endif // NV_MESH_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/Atlas.cpp b/thirdparty/thekla_atlas/nvmesh/param/Atlas.cpp
deleted file mode 100644
index 98f92cef96..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/Atlas.cpp
+++ /dev/null
@@ -1,1519 +0,0 @@
-// Copyright NVIDIA Corporation 2006 -- Ignacio Castano <icastano@nvidia.com>
-
-#include "nvmesh.h" // pch
-
-#include "Atlas.h"
-#include "Util.h"
-#include "AtlasBuilder.h"
-#include "AtlasPacker.h"
-#include "SingleFaceMap.h"
-#include "OrthogonalProjectionMap.h"
-#include "LeastSquaresConformalMap.h"
-#include "ParameterizationQuality.h"
-
-//#include "nvmesh/export/MeshExportOBJ.h"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/halfedge/Vertex.h"
-
-#include "nvmesh/MeshBuilder.h"
-#include "nvmesh/MeshTopology.h"
-#include "nvmesh/param/Util.h"
-#include "nvmesh/geometry/Measurements.h"
-
-#include "nvmath/Vector.inl"
-#include "nvmath/Fitting.h"
-#include "nvmath/Box.inl"
-#include "nvmath/ProximityGrid.h"
-#include "nvmath/Morton.h"
-
-#include "nvcore/StrLib.h"
-#include "nvcore/Array.inl"
-#include "nvcore/HashMap.inl"
-
-using namespace nv;
-
-
-/// Ctor.
-Atlas::Atlas()
-{
-    failed=false;
-}
-
-// Dtor.
-Atlas::~Atlas()
-{
-    deleteAll(m_meshChartsArray);
-}
-
-uint Atlas::chartCount() const
-{
-    uint count = 0;
-    foreach(c, m_meshChartsArray) {
-        count += m_meshChartsArray[c]->chartCount();
-    }
-    return count;
-}
-
-const Chart * Atlas::chartAt(uint i) const
-{
-    foreach(c, m_meshChartsArray) {
-        uint count = m_meshChartsArray[c]->chartCount();
-
-        if (i < count) {
-            return m_meshChartsArray[c]->chartAt(i);
-        }
-
-        i -= count;
-    }
-
-    return NULL;
-}
-
-Chart * Atlas::chartAt(uint i) 
-{
-    foreach(c, m_meshChartsArray) {
-        uint count = m_meshChartsArray[c]->chartCount();
-
-        if (i < count) {
-            return m_meshChartsArray[c]->chartAt(i);
-        }
-
-        i -= count;
-    }
-
-    return NULL;
-}
-
-// Extract the charts and add to this atlas.
-void Atlas::addMeshCharts(MeshCharts * meshCharts)
-{
-    m_meshChartsArray.append(meshCharts);
-}
-
-void Atlas::extractCharts(const HalfEdge::Mesh * mesh)
-{
-    MeshCharts * meshCharts = new MeshCharts(mesh);
-    meshCharts->extractCharts();
-    addMeshCharts(meshCharts);
-}
-
-void Atlas::computeCharts(const HalfEdge::Mesh * mesh, const SegmentationSettings & settings, const Array<uint> & unchartedMaterialArray)
-{
-    failed=false;
-    MeshCharts * meshCharts = new MeshCharts(mesh);
-    meshCharts->computeCharts(settings, unchartedMaterialArray);
-    addMeshCharts(meshCharts);
-}
-
-
-
-
-#if 0
-
-/// Compute a seamless texture atlas.
-bool Atlas::computeSeamlessTextureAtlas(bool groupFaces/*= true*/, bool scaleTiles/*= false*/, uint w/*= 1024*/, uint h/* = 1024*/)
-{
-    // Implement seamless texture atlas similar to what ZBrush does. See also:
-    // "Meshed Atlases for Real-Time Procedural Solid Texturing"
-    // http://graphics.cs.uiuc.edu/~jch/papers/rtpst.pdf
-
-    // Other methods that we should experiment with:
-    // 
-    // Seamless Texture Atlases:
-    // http://www.cs.jhu.edu/~bpurnomo/STA/index.html
-    // 
-    // Rectangular Multi-Chart Geometry Images:
-    // http://graphics.cs.uiuc.edu/~jch/papers/rmcgi.pdf
-    // 
-    // Discrete differential geometry also provide a way of constructing  
-    // seamless quadrangulations as shown in:
-    // http://www.geometry.caltech.edu/pubs/TACD06.pdf
-    // 
-
-#pragma message(NV_FILE_LINE "TODO: Implement seamless texture atlas.")
-
-    if (groupFaces)
-    {
-        // @@ TODO.
-    }
-    else
-    {
-        // @@ Create one atlas per face.
-    }
-
-    if (scaleTiles)
-    {
-        // @@ TODO
-    }
-
-    /*
-    if (!isQuadMesh(m_mesh)) {
-        // Only handle quads for now.
-        return false;
-    }
-
-    // Each face is a chart.
-    const uint faceCount = m_mesh->faceCount();
-    m_chartArray.resize(faceCount);
-
-    for(uint f = 0; f < faceCount; f++) {
-        m_chartArray[f].faceArray.clear();
-        m_chartArray[f].faceArray.append(f);
-    }
-
-    // Map each face to a separate square.
-
-    // Determine face layout according to width and height.
-    float aspect = float(m_width) / float(m_height);
-
-    uint i = 2;
-    uint total = (m_width / (i+1)) * (m_height / (i+1));
-    while(total > faceCount) {
-        i *= 2;
-        total = (m_width / (i+1)) * (m_height / (i+1));
-    }
-
-    uint tileSize = i / 2;
-
-    int x = 0;
-    int y = 0;
-
-    m_result = new HalfEdge::Mesh();
-
-    // Once you have that it's just matter of traversing the faces.
-    for(uint f = 0; f < faceCount; f++) {
-        // Compute texture coordinates.
-        Vector2 tex[4];
-        tex[0] = Vector2(float(x), float(y));
-        tex[1] = Vector2(float(x+tileSize), float(y));
-        tex[2] = Vector2(float(x+tileSize), float(y+tileSize));
-        tex[3] = Vector2(float(x), float(y+tileSize));
-
-        Array<uint> indexArray(4);
-
-        const HalfEdge::Face * face = m_mesh->faceAt(f);
-
-        int i = 0;
-        for(HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance(), i++) {
-            const HalfEdge::Edge * edge = it.current();
-            const HalfEdge::Vertex * vertex = edge->from();
-
-            HalfEdge::Vertex * newVertex = m_result->addVertex(vertex->id(), vertex->pos());
-
-            newVertex->setTex(Vector3(tex[i], 0));
-            newVertex->setNor(vertex->nor());
-
-            indexArray.append(m_result->vertexCount() + 1);
-        }
-
-        m_result->addFace(indexArray);
-
-        // Move to the next tile.
-        x += tileSize + 1;
-        if (x + tileSize > m_width) {
-            x = 0;
-            y += tileSize + 1;
-        }
-    }
-    */
-
-    return false;
-}
-
-#endif
-
-
-void Atlas::parameterizeCharts()
-{
-    foreach(i, m_meshChartsArray) {
-        m_meshChartsArray[i]->parameterizeCharts();
-    }
-}
-
-
-float Atlas::packCharts(int quality, float texelsPerUnit, bool blockAlign, bool conservative)
-{
-    AtlasPacker packer(this);
-    packer.packCharts(quality, texelsPerUnit, blockAlign, conservative);
-    if (hasFailed())
-        return 0;
-    return packer.computeAtlasUtilization();
-}
-
-
-
-
-/// Ctor.
-MeshCharts::MeshCharts(const HalfEdge::Mesh * mesh) : m_mesh(mesh)
-{
-}
-
-// Dtor.
-MeshCharts::~MeshCharts()
-{
-    deleteAll(m_chartArray);
-}
-
-
-void MeshCharts::extractCharts()
-{
-    const uint faceCount = m_mesh->faceCount();
-
-    int first = 0;
-    Array<uint> queue(faceCount);
-
-    BitArray bitFlags(faceCount);
-    bitFlags.clearAll();
-
-    for (uint f = 0; f < faceCount; f++)
-    {
-        if (bitFlags.bitAt(f) == false)
-        {
-            // Start new patch. Reset queue.
-            first = 0;
-            queue.clear();
-            queue.append(f);
-            bitFlags.setBitAt(f);
-
-            while (first != queue.count())
-            {
-                const HalfEdge::Face * face = m_mesh->faceAt(queue[first]);
-
-                // Visit face neighbors of queue[first]
-                for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-                {
-                    const HalfEdge::Edge * edge = it.current();
-                    nvDebugCheck(edge->pair != NULL);
-
-                    if (!edge->isBoundary() && /*!edge->isSeam()*/ 
-                        //!(edge->from()->tex() != edge->pair()->to()->tex() || edge->to()->tex() != edge->pair()->from()->tex()))
-                        !(edge->from() != edge->pair->to() || edge->to() != edge->pair->from())) // Preserve existing seams (not just texture seams).
-                    {
-                        const HalfEdge::Face * neighborFace = edge->pair->face;
-                        nvDebugCheck(neighborFace != NULL);
-
-                        if (bitFlags.bitAt(neighborFace->id) == false)
-                        {
-                            queue.append(neighborFace->id);
-                            bitFlags.setBitAt(neighborFace->id);
-                        }
-                    }
-                }
-
-                first++;
-            }
-
-            Chart * chart = new Chart();
-            chart->build(m_mesh, queue);
-
-            m_chartArray.append(chart);
-        }
-    }
-}
-
-
-/*
-LSCM:
-- identify sharp features using local dihedral angles.
-- identify seed faces farthest from sharp features.
-- grow charts from these seeds.
-
-MCGIM:
-- phase 1: chart growth
-  - grow all charts simultaneously using dijkstra search on the dual graph of the mesh.
-  - graph edges are weighted based on planarity metric.
-  - metric uses distance to global chart normal.
-  - terminate when all faces have been assigned.
-- phase 2: seed computation:
-  - place new seed of the chart at the most interior face.
-  - most interior is evaluated using distance metric only.
-
-- method repeates the two phases, until the location of the seeds does not change.
-  - cycles are detected by recording all the previous seeds and chartification terminates.
-
-D-Charts:
-
-- Uniaxial conic metric:
-  - N_c = axis of the generalized cone that best fits the chart. (cone can a be cylinder or a plane).
-  - omega_c = angle between the face normals and the axis.
-  - Fitting error between chart C and tringle t: F(c,t) = (N_c*n_t - cos(omega_c))^2
-
-- Compactness metrics:
-  - Roundness:
-    - C(c,t) = pi * D(S_c,t)^2 / A_c
-    - S_c = chart seed.
-    - D(S_c,t) = length of the shortest path inside the chart betwen S_c and t.
-    - A_c = chart area.
-  - Straightness:
-    - P(c,t) = l_out(c,t) / l_in(c,t)
-    - l_out(c,t) = lenght of the edges not shared between C and t.
-    - l_in(c,t) = lenght of the edges shared between C and t.
-
-- Combined metric:
-  - Cost(c,t) = F(c,t)^alpha + C(c,t)^beta + P(c,t)^gamma
-  - alpha = 1, beta = 0.7, gamma = 0.5
-
-
-
-
-Our basic approach:
-- Just one iteration of k-means?
-- Avoid dijkstra by greedily growing charts until a threshold is met. Increase threshold and repeat until no faces left.
-- If distortion metric is too high, split chart, add two seeds.
-- If chart size is low, try removing chart.
-
-
-Postprocess:
-- If topology is not disk:
-  - Fill holes, if new faces fit proxy.
-  - Find best cut, otherwise.
-- After parameterization:
-  - If boundary self-intersects: 
-    - cut chart along the closest two diametral boundary vertices, repeat parametrization.
-    - what if the overlap is on an appendix? How do we find that out and cut appropiately?
-      - emphasize roundness metrics to prevent those cases.
-  - If interior self-overlaps: preserve boundary parameterization and use mean-value map.
-
-*/
-
-
-SegmentationSettings::SegmentationSettings()
-{
-    // Charts have no area or boundary limits right now.
-    maxChartArea = NV_FLOAT_MAX;
-    maxBoundaryLength = NV_FLOAT_MAX;
-
-    proxyFitMetricWeight = 1.0f;
-    roundnessMetricWeight = 0.1f;
-    straightnessMetricWeight = 0.25f;
-    normalSeamMetricWeight = 1.0f;
-    textureSeamMetricWeight = 0.1f;
-}
-
-
-
-void MeshCharts::computeCharts(const SegmentationSettings & settings, const Array<uint> & unchartedMaterialArray)
-{
-    Chart * vertexMap = NULL;
-    
-    if (unchartedMaterialArray.count() != 0) {
-        vertexMap = new Chart();
-        vertexMap->buildVertexMap(m_mesh, unchartedMaterialArray);
-
-        if (vertexMap->faceCount() == 0) {
-            delete vertexMap;
-            vertexMap = NULL;
-        }
-    }
-    
-
-    AtlasBuilder builder(m_mesh);
-
-    if (vertexMap != NULL) {
-        // Mark faces that do not need to be charted.
-        builder.markUnchartedFaces(vertexMap->faceArray());
-
-        m_chartArray.append(vertexMap);
-    }
-
-    if (builder.facesLeft != 0) {
-
-        // Tweak these values:
-        const float maxThreshold = 2;
-        const uint growFaceCount = 32;
-        const uint maxIterations = 4;
-        
-        builder.settings = settings;
-
-        //builder.settings.proxyFitMetricWeight *= 0.75; // relax proxy fit weight during initial seed placement.
-        //builder.settings.roundnessMetricWeight = 0;
-        //builder.settings.straightnessMetricWeight = 0;
-
-        // This seems a reasonable estimate.
-        uint maxSeedCount = max(6U, builder.facesLeft);
-
-        // Create initial charts greedely.
-        nvDebug("### Placing seeds\n");
-        builder.placeSeeds(maxThreshold, maxSeedCount);
-        nvDebug("###   Placed %d seeds (max = %d)\n", builder.chartCount(), maxSeedCount);
-
-        builder.updateProxies();
-
-        builder.mergeCharts();
-
-    #if 1
-        nvDebug("### Relocating seeds\n");
-        builder.relocateSeeds();
-
-        nvDebug("### Reset charts\n");
-        builder.resetCharts();
-
-        if (vertexMap != NULL) {
-            builder.markUnchartedFaces(vertexMap->faceArray());
-        }
-
-        builder.settings = settings;
-
-        nvDebug("### Growing charts\n");
-
-        // Restart process growing charts in parallel.
-        uint iteration = 0;
-        while (true)
-        {
-            if (!builder.growCharts(maxThreshold, growFaceCount))
-            {
-                nvDebug("### Can't grow anymore\n");
-
-                // If charts cannot grow more: fill holes, merge charts, relocate seeds and start new iteration.
-
-                nvDebug("### Filling holes\n");
-                builder.fillHoles(maxThreshold);
-                nvDebug("###   Using %d charts now\n", builder.chartCount());
-
-                builder.updateProxies();
-
-                nvDebug("### Merging charts\n");
-                builder.mergeCharts();
-                nvDebug("###   Using %d charts now\n", builder.chartCount());
-
-                nvDebug("### Reseeding\n");
-                if (!builder.relocateSeeds())
-                {
-                    nvDebug("### Cannot relocate seeds anymore\n");
-
-                    // Done!
-                    break;
-                }
-
-                if (iteration == maxIterations)
-                {
-                    nvDebug("### Reached iteration limit\n");
-                    break;
-                }
-                iteration++;
-
-                nvDebug("### Reset charts\n");
-                builder.resetCharts();
-
-                if (vertexMap != NULL) {
-                    builder.markUnchartedFaces(vertexMap->faceArray());
-                }
-
-                nvDebug("### Growing charts\n");
-            }
-        };
-    #endif
-
-        // Make sure no holes are left!
-        nvDebugCheck(builder.facesLeft == 0);
-
-        const uint chartCount = builder.chartArray.count();
-        for (uint i = 0; i < chartCount; i++)
-        {
-            Chart * chart = new Chart();
-            m_chartArray.append(chart);
-
-            chart->build(m_mesh, builder.chartFaces(i));
-        }
-    }
-
-
-    const uint chartCount = m_chartArray.count();
-
-    // Build face indices.
-    m_faceChart.resize(m_mesh->faceCount());
-    m_faceIndex.resize(m_mesh->faceCount());
-
-    for (uint i = 0; i < chartCount; i++)
-    {
-        const Chart * chart = m_chartArray[i];
-
-        const uint faceCount = chart->faceCount();
-        for (uint f = 0; f < faceCount; f++)
-        {
-            uint idx = chart->faceAt(f);
-            m_faceChart[idx] = i;
-            m_faceIndex[idx] = f;
-        }
-    }
-
-    // Build an exclusive prefix sum of the chart vertex counts.
-    m_chartVertexCountPrefixSum.resize(chartCount);
-    
-    if (chartCount > 0)
-    {
-        m_chartVertexCountPrefixSum[0] = 0;
-        
-        for (uint i = 1; i < chartCount; i++)
-        {
-            const Chart * chart = m_chartArray[i-1];
-            m_chartVertexCountPrefixSum[i] = m_chartVertexCountPrefixSum[i-1] + chart->vertexCount();
-        }
-
-        m_totalVertexCount = m_chartVertexCountPrefixSum[chartCount - 1] + m_chartArray[chartCount-1]->vertexCount();
-    }
-    else
-    {
-        m_totalVertexCount = 0;
-    }
-}
-
-
-void MeshCharts::parameterizeCharts()
-{
-    ParameterizationQuality globalParameterizationQuality;
-
-    // Parameterize the charts.
-    uint diskCount = 0;
-    const uint chartCount = m_chartArray.count();
-    for (uint i = 0; i < chartCount; i++)\
-    {
-        Chart * chart = m_chartArray[i];
-
-        bool isValid = false;
-
-        if (chart->isVertexMapped()) {
-            continue;
-        }
-
-        if (chart->isDisk())
-        {
-            diskCount++;
-
-            ParameterizationQuality chartParameterizationQuality;
-
-            if (chart->faceCount() == 1) {
-                computeSingleFaceMap(chart->unifiedMesh());
-
-                chartParameterizationQuality = ParameterizationQuality(chart->unifiedMesh());
-            }
-            else {
-                computeOrthogonalProjectionMap(chart->unifiedMesh());
-                ParameterizationQuality orthogonalQuality(chart->unifiedMesh());
-
-                computeLeastSquaresConformalMap(chart->unifiedMesh());
-                ParameterizationQuality lscmQuality(chart->unifiedMesh());
-                
-                // If the orthogonal projection produces better results, just use that.
-                // @@ It may be dangerous to do this, because isValid() does not detect self-overlaps.
-                // @@ Another problem is that with very thin patches with nearly zero parametric area, the results of our metric are not accurate.
-                /*if (orthogonalQuality.isValid() && orthogonalQuality.rmsStretchMetric() < lscmQuality.rmsStretchMetric()) {
-                    computeOrthogonalProjectionMap(chart->unifiedMesh());
-                    chartParameterizationQuality = orthogonalQuality;
-                }
-                else*/ {
-                    chartParameterizationQuality = lscmQuality;
-                }
-
-                // If conformal map failed, 
-
-                // @@ Experiment with other parameterization methods.
-                //computeCircularBoundaryMap(chart->unifiedMesh());
-                //computeConformalMap(chart->unifiedMesh());
-                //computeNaturalConformalMap(chart->unifiedMesh());
-                //computeGuidanceGradientMap(chart->unifiedMesh());
-            }
-
-            //ParameterizationQuality chartParameterizationQuality(chart->unifiedMesh());
-
-            isValid = chartParameterizationQuality.isValid();
-
-            if (!isValid)
-            {
-                nvDebug("*** Invalid parameterization.\n");
-#if 0
-                // Dump mesh to inspect problem:
-                static int pieceCount = 0;
-            
-                StringBuilder fileName;
-                fileName.format("invalid_chart_%d.obj", pieceCount++);
-                exportMesh(chart->unifiedMesh(), fileName.str()); 
-#endif
-            }
-
-            // @@ Check that parameterization quality is above a certain threshold.
-
-            // @@ Detect boundary self-intersections.
-
-            globalParameterizationQuality += chartParameterizationQuality;
-        }
-
-        if (!isValid)
-        {
-            //nvDebugBreak();
-            // @@ Run the builder again, but only on this chart.
-            //AtlasBuilder builder(chart->chartMesh());
-        }
-
-        // Transfer parameterization from unified mesh to chart mesh.
-        chart->transferParameterization();
-
-    }
-
-    nvDebug("  Parameterized %d/%d charts.\n", diskCount, chartCount);
-    nvDebug("  RMS stretch metric: %f\n", globalParameterizationQuality.rmsStretchMetric());
-    nvDebug("  MAX stretch metric: %f\n", globalParameterizationQuality.maxStretchMetric());
-    nvDebug("  RMS conformal metric: %f\n", globalParameterizationQuality.rmsConformalMetric());
-    nvDebug("  RMS authalic metric: %f\n", globalParameterizationQuality.maxAuthalicMetric());
-}
-
-
-
-Chart::Chart() : m_chartMesh(NULL), m_unifiedMesh(NULL), m_isDisk(false), m_isVertexMapped(false)
-{
-}
-
-void Chart::build(const HalfEdge::Mesh * originalMesh, const Array<uint> & faceArray)
-{
-    // Copy face indices.
-    m_faceArray = faceArray;
-
-    const uint meshVertexCount = originalMesh->vertexCount();
-
-    m_chartMesh = new HalfEdge::Mesh();
-    m_unifiedMesh = new HalfEdge::Mesh();
-
-    Array<uint> chartMeshIndices;
-    chartMeshIndices.resize(meshVertexCount, ~0);
-
-    Array<uint> unifiedMeshIndices;
-    unifiedMeshIndices.resize(meshVertexCount, ~0);
-
-    // Add vertices.
-    const uint faceCount = faceArray.count();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = originalMesh->faceAt(faceArray[f]);
-        nvDebugCheck(face != NULL);
-
-        for(HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Vertex * vertex = it.current()->vertex;
-            const HalfEdge::Vertex * unifiedVertex = vertex->firstColocal();
-
-            if (unifiedMeshIndices[unifiedVertex->id] == ~0)
-            {
-                unifiedMeshIndices[unifiedVertex->id] = m_unifiedMesh->vertexCount();
-
-                nvDebugCheck(vertex->pos == unifiedVertex->pos);
-                m_unifiedMesh->addVertex(vertex->pos);
-            }
-
-            if (chartMeshIndices[vertex->id] == ~0)
-            {
-                chartMeshIndices[vertex->id] = m_chartMesh->vertexCount();
-                m_chartToOriginalMap.append(vertex->id);
-                m_chartToUnifiedMap.append(unifiedMeshIndices[unifiedVertex->id]);
-
-                HalfEdge::Vertex * v = m_chartMesh->addVertex(vertex->pos);
-                v->nor = vertex->nor;
-                v->tex = vertex->tex;
-            }
-        }
-    }
-
-    // This is ignoring the canonical map:
-    // - Is it really necessary to link colocals?
-
-    m_chartMesh->linkColocals();    
-    //m_unifiedMesh->linkColocals();  // Not strictly necessary, no colocals in the unified mesh. # Wrong.
-
-    // This check is not valid anymore, if the original mesh vertices were linked with a canonical map, then it might have
-    // some colocal vertices that were unlinked. So, the unified mesh might have some duplicate vertices, because firstColocal()
-    // is not guaranteed to return the same vertex for two colocal vertices.
-    //nvCheck(m_chartMesh->colocalVertexCount() == m_unifiedMesh->vertexCount());
-
-    // Is that OK? What happens in meshes were that happens? Does anything break? Apparently not...
-    
-
-
-    Array<uint> faceIndices(7);
-
-    // Add faces.
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = originalMesh->faceAt(faceArray[f]);
-        nvDebugCheck(face != NULL);
-
-        faceIndices.clear();
-
-        for(HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Vertex * vertex = it.current()->vertex;
-            nvDebugCheck(vertex != NULL);
-
-            faceIndices.append(chartMeshIndices[vertex->id]);
-        }
-
-        m_chartMesh->addFace(faceIndices);
-
-        faceIndices.clear();
-
-        for(HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Vertex * vertex = it.current()->vertex;
-            nvDebugCheck(vertex != NULL);
-
-            vertex = vertex->firstColocal();
-
-            faceIndices.append(unifiedMeshIndices[vertex->id]);
-        }
-
-        m_unifiedMesh->addFace(faceIndices);
-    }
-
-    m_chartMesh->linkBoundary();
-    m_unifiedMesh->linkBoundary();
-
-    //exportMesh(m_unifiedMesh.ptr(), "debug_input.obj");
-
-    if (m_unifiedMesh->splitBoundaryEdges()) {
-        m_unifiedMesh = unifyVertices(m_unifiedMesh.ptr());
-    }
-
-    //exportMesh(m_unifiedMesh.ptr(), "debug_split.obj");
-
-    // Closing the holes is not always the best solution and does not fix all the problems.
-    // We need to do some analysis of the holes and the genus to:
-    // - Find cuts that reduce genus.
-    // - Find cuts to connect holes.
-    // - Use minimal spanning trees or seamster.
-    if (!closeHoles()) {
-        /*static int pieceCount = 0;
-        StringBuilder fileName;
-        fileName.format("debug_hole_%d.obj", pieceCount++);
-        exportMesh(m_unifiedMesh.ptr(), fileName.str());*/
-    }
-
-    m_unifiedMesh = triangulate(m_unifiedMesh.ptr());
-    
-    //exportMesh(m_unifiedMesh.ptr(), "debug_triangulated.obj");
-
-
-    // Analyze chart topology.
-    MeshTopology topology(m_unifiedMesh.ptr());
-    m_isDisk = topology.isDisk();
-
-    // This is sometimes failing, when triangulate fails to add a triangle, it generates a hole in the mesh.
-    //nvDebugCheck(m_isDisk);
-
-    /*if (!m_isDisk) {
-        static int pieceCount = 0;
-        StringBuilder fileName;
-        fileName.format("debug_hole_%d.obj", pieceCount++);
-        exportMesh(m_unifiedMesh.ptr(), fileName.str());
-    }*/
-
-
-#if 0
-    if (!m_isDisk) {
-        nvDebugBreak();
-
-        static int pieceCount = 0;
-        
-        StringBuilder fileName;
-        fileName.format("debug_nodisk_%d.obj", pieceCount++);
-        exportMesh(m_chartMesh.ptr(), fileName.str()); 
-    }
-#endif
-
-}
-
-
-void Chart::buildVertexMap(const HalfEdge::Mesh * originalMesh, const Array<uint> & unchartedMaterialArray)
-{
-    nvCheck(m_chartMesh == NULL && m_unifiedMesh == NULL);
-
-    m_isVertexMapped = true;
-
-    // Build face indices.
-    m_faceArray.clear();
-
-    const uint meshFaceCount = originalMesh->faceCount();
-    for (uint f = 0; f < meshFaceCount; f++) {
-        const HalfEdge::Face * face = originalMesh->faceAt(f);
-
-        if (unchartedMaterialArray.contains(face->material)) {
-            m_faceArray.append(f);
-        }
-    }
-
-    const uint faceCount = m_faceArray.count();
-
-    if (faceCount == 0) {
-        return;
-    }
-
-
-    // @@ The chartMesh construction is basically the same as with regular charts, don't duplicate!
-
-    const uint meshVertexCount = originalMesh->vertexCount();
-
-    m_chartMesh = new HalfEdge::Mesh();
-
-    Array<uint> chartMeshIndices;
-    chartMeshIndices.resize(meshVertexCount, ~0);
-
-    // Vertex map mesh only has disconnected vertices.
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = originalMesh->faceAt(m_faceArray[f]);
-        nvDebugCheck(face != NULL);
-
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Vertex * vertex = it.current()->vertex;
-
-            if (chartMeshIndices[vertex->id] == ~0)
-            {
-                chartMeshIndices[vertex->id] = m_chartMesh->vertexCount();
-                m_chartToOriginalMap.append(vertex->id);
-
-                HalfEdge::Vertex * v = m_chartMesh->addVertex(vertex->pos);
-                v->nor = vertex->nor;
-                v->tex = vertex->tex; // @@ Not necessary.
-            }
-        }
-    }
-
-    // @@ Link colocals using the original mesh canonical map? Build canonical map on the fly? Do we need to link colocals at all for this?
-    //m_chartMesh->linkColocals();
-
-    Array<uint> faceIndices(7);
-
-    // Add faces.
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = originalMesh->faceAt(m_faceArray[f]);
-        nvDebugCheck(face != NULL);
-
-        faceIndices.clear();
-
-        for(HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Vertex * vertex = it.current()->vertex;
-            nvDebugCheck(vertex != NULL);
-            nvDebugCheck(chartMeshIndices[vertex->id] != ~0);
-
-            faceIndices.append(chartMeshIndices[vertex->id]);
-        }
-
-        HalfEdge::Face * new_face = m_chartMesh->addFace(faceIndices);
-        nvDebugCheck(new_face != NULL);
-    }
-
-    m_chartMesh->linkBoundary();
-
-
-    const uint chartVertexCount = m_chartMesh->vertexCount();
-
-    Box bounds;
-    bounds.clearBounds();
-
-    for (uint i = 0; i < chartVertexCount; i++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(i);
-        bounds.addPointToBounds(vertex->pos);
-    }
-
-    ProximityGrid grid;
-    grid.init(bounds, chartVertexCount);
-
-    for (uint i = 0; i < chartVertexCount; i++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(i);
-        grid.add(vertex->pos, i);
-    }
-
-
-#if 0
-    // Arrange vertices in a rectangle.
-    vertexMapWidth = ftoi_ceil(sqrtf(float(chartVertexCount)));
-    vertexMapHeight = (chartVertexCount + vertexMapWidth - 1) / vertexMapWidth;
-    nvDebugCheck(vertexMapWidth >= vertexMapHeight);
-
-    int x = 0, y = 0;
-    for (uint i = 0; i < chartVertexCount; i++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(i);
-
-        vertex->tex.x = float(x);
-        vertex->tex.y = float(y);
-
-        x++;
-        if (x == vertexMapWidth) {
-            x = 0;
-            y++;
-            nvCheck(y < vertexMapHeight);
-        }
-    }
-
-#elif 0
-    // Arrange vertices in a rectangle, traversing grid in 3D morton order and laying them down in 2D morton order.
-    vertexMapWidth = ftoi_ceil(sqrtf(float(chartVertexCount)));
-    vertexMapHeight = (chartVertexCount + vertexMapWidth - 1) / vertexMapWidth;
-    nvDebugCheck(vertexMapWidth >= vertexMapHeight);
-
-    int n = 0;
-    uint32 texelCode = 0;
-
-    uint cellsVisited = 0;
-
-    const uint32 cellCodeCount = grid.mortonCount();
-    for (uint32 cellCode = 0; cellCode < cellCodeCount; cellCode++) {
-        int cell = grid.mortonIndex(cellCode);
-        if (cell < 0) continue;
-
-        cellsVisited++;
-
-        const Array<uint> & indexArray = grid.cellArray[cell].indexArray;
-
-        foreach(i, indexArray) {
-            uint idx = indexArray[i];
-            HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(idx);
-
-            //vertex->tex.x = float(n % rectangleWidth) + 0.5f;
-            //vertex->tex.y = float(n / rectangleWidth) + 0.5f;
-
-            // Lay down the points in z order too.
-            uint x, y;
-            do {
-                x = decodeMorton2X(texelCode);
-                y = decodeMorton2Y(texelCode);
-                texelCode++;
-            } while (x >= U32(vertexMapWidth) || y >= U32(vertexMapHeight));
-            
-            vertex->tex.x = float(x);
-            vertex->tex.y = float(y);
-
-            n++;
-        }
-    }
-
-    nvDebugCheck(cellsVisited == grid.cellArray.count());
-    nvDebugCheck(n == chartVertexCount);
-
-#else
-
-    uint texelCount = 0;
-
-    const float positionThreshold = 0.01f;
-    const float normalThreshold = 0.01f;
-
-    uint verticesVisited = 0;
-    uint cellsVisited = 0;
-
-    Array<int> vertexIndexArray;
-    vertexIndexArray.resize(chartVertexCount, -1); // Init all indices to -1.
-
-    // Traverse vertices in morton order. @@ It may be more interesting to sort them based on orientation.
-    const uint cellCodeCount = grid.mortonCount();
-    for (uint cellCode = 0; cellCode < cellCodeCount; cellCode++) {
-        int cell = grid.mortonIndex(cellCode);
-        if (cell < 0) continue;
-
-        cellsVisited++;
-
-        const Array<uint> & indexArray = grid.cellArray[cell].indexArray;
-
-        foreach(i, indexArray) {
-            uint idx = indexArray[i];
-            HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(idx);
-
-            nvDebugCheck(vertexIndexArray[idx] == -1);
-
-            Array<uint> neighbors;
-            grid.gather(vertex->pos, positionThreshold, /*ref*/neighbors);
-
-            // Compare against all nearby vertices, cluster greedily.
-            foreach(j, neighbors) {
-                uint otherIdx = neighbors[j];
-
-                if (vertexIndexArray[otherIdx] != -1) {
-                    HalfEdge::Vertex * otherVertex = m_chartMesh->vertexAt(otherIdx);
-
-                    if (distance(vertex->pos, otherVertex->pos) < positionThreshold &&
-                        distance(vertex->nor, otherVertex->nor) < normalThreshold) 
-                    {
-                        vertexIndexArray[idx] = vertexIndexArray[otherIdx];
-                        break;
-                    }
-                }
-            }
-
-            // If index not assigned, assign new one.
-            if (vertexIndexArray[idx] == -1) {
-                vertexIndexArray[idx] = texelCount++;
-            }
-
-            verticesVisited++;
-        }
-    }
-
-    nvDebugCheck(cellsVisited == grid.cellArray.count());
-    nvDebugCheck(verticesVisited == chartVertexCount);
-
-    vertexMapWidth = ftoi_ceil(sqrtf(float(texelCount)));
-    vertexMapWidth = (vertexMapWidth + 3) & ~3;                             // Width aligned to 4.
-    vertexMapHeight = vertexMapWidth == 0 ? 0 : (texelCount + vertexMapWidth - 1) / vertexMapWidth;
-    //vertexMapHeight = (vertexMapHeight + 3) & ~3;                           // Height aligned to 4.
-    nvDebugCheck(vertexMapWidth >= vertexMapHeight);
-
-    nvDebug("Reduced vertex count from %d to %d.\n", chartVertexCount, texelCount);
-
-#if 0
-    // This lays down the clustered vertices linearly.
-    for (uint i = 0; i < chartVertexCount; i++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(i);
-
-        int idx = vertexIndexArray[i];
-
-        vertex->tex.x = float(idx % vertexMapWidth);
-        vertex->tex.y = float(idx / vertexMapWidth);
-    }
-#else
-    // Lay down the clustered vertices in morton order.
-
-    Array<uint> texelCodes;
-    texelCodes.resize(texelCount);
-
-    // For each texel, assign one morton code.
-    uint texelCode = 0;
-    for (uint i = 0; i < texelCount; i++) {
-        uint x, y;
-        do {
-            x = decodeMorton2X(texelCode);
-            y = decodeMorton2Y(texelCode);
-            texelCode++;
-        } while (x >= U32(vertexMapWidth) || y >= U32(vertexMapHeight));
-
-        texelCodes[i] = texelCode - 1;
-    }
-
-    for (uint i = 0; i < chartVertexCount; i++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(i);
-
-        int idx = vertexIndexArray[i];
-        if (idx != -1) {
-            uint texelCode = texelCodes[idx];
-            uint x = decodeMorton2X(texelCode);
-            uint y = decodeMorton2Y(texelCode);
-
-            vertex->tex.x = float(x);
-            vertex->tex.y = float(y);
-        }
-    }
-
-#endif
-   
-#endif
-
-}
-
-
-
-static void getBoundaryEdges(HalfEdge::Mesh * mesh, Array<HalfEdge::Edge *> & boundaryEdges)
-{
-    nvDebugCheck(mesh != NULL);
-
-    const uint edgeCount = mesh->edgeCount();
-
-    BitArray bitFlags(edgeCount);
-    bitFlags.clearAll();
-
-    boundaryEdges.clear();
-
-    // Search for boundary edges. Mark all the edges that belong to the same boundary.
-    for (uint e = 0; e < edgeCount; e++)
-    {
-        HalfEdge::Edge * startEdge = mesh->edgeAt(e);
-
-        if (startEdge != NULL && startEdge->isBoundary() && bitFlags.bitAt(e) == false)
-        {
-            nvDebugCheck(startEdge->face != NULL);
-            nvDebugCheck(startEdge->pair->face == NULL);
-
-            startEdge = startEdge->pair;
-
-            const HalfEdge::Edge * edge = startEdge;
-            do {
-                nvDebugCheck(edge->face == NULL);
-                nvDebugCheck(bitFlags.bitAt(edge->id/2) == false);
-
-                bitFlags.setBitAt(edge->id / 2);
-                edge = edge->next;
-            } while(startEdge != edge);
-
-            boundaryEdges.append(startEdge);
-        }
-    }
-}
-
-
-bool Chart::closeLoop(uint start, const Array<HalfEdge::Edge *> & loop)
-{
-    const uint vertexCount = loop.count() - start;
-
-    nvDebugCheck(vertexCount >= 3);
-    if (vertexCount < 3) return false;
-
-    nvDebugCheck(loop[start]->vertex->isColocal(loop[start+vertexCount-1]->to()));
-
-    // If the hole is planar, then we add a single face that will be properly triangulated later.
-    // If the hole is not planar, we add a triangle fan with a vertex at the hole centroid.
-    // This is still a bit of a hack. There surely are better hole filling algorithms out there.
-
-    Array<Vector3> points;
-    points.resize(vertexCount);
-    for (uint i = 0; i < vertexCount; i++) {
-        points[i] = loop[start+i]->vertex->pos;
-    }
-
-    bool isPlanar = Fit::isPlanar(vertexCount, points.buffer());
-
-    if (isPlanar) {
-        // Add face and connect edges.
-        HalfEdge::Face * face = m_unifiedMesh->addFace();
-        for (uint i = 0; i < vertexCount; i++) {
-            HalfEdge::Edge * edge = loop[start + i];
-            
-            edge->face = face;
-            edge->setNext(loop[start + (i + 1) % vertexCount]);
-        }
-        face->edge = loop[start];
-
-        nvDebugCheck(face->isValid());
-    }
-    else {
-        // If the polygon is not planar, we just cross our fingers, and hope this will work:
-
-        // Compute boundary centroid:
-        Vector3 centroidPos(0);
-
-        for (uint i = 0; i < vertexCount; i++) {
-            centroidPos += points[i];
-        }
-
-        centroidPos *= (1.0f / vertexCount);
-
-        HalfEdge::Vertex * centroid = m_unifiedMesh->addVertex(centroidPos);
-
-        // Add one pair of edges for each boundary vertex.
-        for (uint j = vertexCount-1, i = 0; i < vertexCount; j = i++) {
-            HalfEdge::Face * face = m_unifiedMesh->addFace(centroid->id, loop[start+j]->vertex->id, loop[start+i]->vertex->id);
-            nvDebugCheck(face != NULL);
-        }
-    }
-
-    return true;
-}
-
-
-bool Chart::closeHoles()
-{
-    nvDebugCheck(!m_isVertexMapped);
-
-    Array<HalfEdge::Edge *> boundaryEdges;
-    getBoundaryEdges(m_unifiedMesh.ptr(), boundaryEdges);
-
-    uint boundaryCount = boundaryEdges.count();
-    if (boundaryCount <= 1)
-    {
-        // Nothing to close.
-        return true;
-    }
-
-    // Compute lengths and areas.
-    Array<float> boundaryLengths;
-    //Array<Vector3> boundaryCentroids;
-
-    for (uint i = 0; i < boundaryCount; i++)
-    {
-        const HalfEdge::Edge * startEdge = boundaryEdges[i];
-        nvCheck(startEdge->face == NULL);
-
-        //float boundaryEdgeCount = 0;
-        float boundaryLength = 0.0f;
-        //Vector3 boundaryCentroid(zero);
-
-        const HalfEdge::Edge * edge = startEdge;
-        do {
-            Vector3 t0 = edge->from()->pos;
-            Vector3 t1 = edge->to()->pos;
-
-            //boundaryEdgeCount++;
-            boundaryLength += length(t1 - t0);
-            //boundaryCentroid += edge->vertex()->pos;
-
-            edge = edge->next;
-        } while(edge != startEdge);
-
-        boundaryLengths.append(boundaryLength);
-        //boundaryCentroids.append(boundaryCentroid / boundaryEdgeCount);
-    }
-
-
-    // Find disk boundary.
-    uint diskBoundary = 0;
-    float maxLength = boundaryLengths[0];
-
-    for (uint i = 1; i < boundaryCount; i++)
-    {
-        if (boundaryLengths[i] > maxLength)
-        {
-            maxLength = boundaryLengths[i];
-            diskBoundary = i;
-        }
-    }
-
-
-    // Sew holes.
-    /*for (uint i = 0; i < boundaryCount; i++)
-    {
-        if (diskBoundary == i)
-        {
-            // Skip disk boundary.
-            continue;
-        }
-
-        HalfEdge::Edge * startEdge = boundaryEdges[i];
-        nvCheck(startEdge->face() == NULL);
-
-        boundaryEdges[i] = m_unifiedMesh->sewBoundary(startEdge);
-    }
-
-    exportMesh(m_unifiedMesh.ptr(), "debug_sewn.obj");*/
-
-    //bool hasNewHoles = false;
-
-    // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-    // @@ Close loop is wrong, after closing a loop, we do not only have to add the face, but make sure that every edge in he loop is pointing to the right place.
-
-    // Close holes.
-    for (uint i = 0; i < boundaryCount; i++)
-    {
-        if (diskBoundary == i)
-        {
-            // Skip disk boundary.
-            continue;
-        }
-
-        HalfEdge::Edge * startEdge = boundaryEdges[i];
-        nvDebugCheck(startEdge != NULL);
-        nvDebugCheck(startEdge->face == NULL);
-
-#if 1
-        Array<HalfEdge::Vertex *> vertexLoop;
-        Array<HalfEdge::Edge *> edgeLoop;
-
-        HalfEdge::Edge * edge = startEdge;
-        do {
-            HalfEdge::Vertex * vertex = edge->next->vertex; // edge->to()
-
-            uint i;
-            for (i = 0; i < vertexLoop.count(); i++) {
-                if (vertex->isColocal(vertexLoop[i])) {
-                    break;
-                }
-            }
-            
-            bool isCrossing = (i != vertexLoop.count());
-
-            if (isCrossing) {
-
-                HalfEdge::Edge * prev = edgeLoop[i];    // Previous edge before the loop.
-                HalfEdge::Edge * next = edge->next;   // Next edge after the loop.
-
-                nvDebugCheck(prev->to()->isColocal(next->from()));
-
-                // Close loop.
-                edgeLoop.append(edge);
-                closeLoop(i+1, edgeLoop);
-
-                // Link boundary loop.
-                prev->setNext(next);
-                vertex->setEdge(next);
-
-                // Start over again.
-                vertexLoop.clear();
-                edgeLoop.clear();
-                
-                edge = startEdge;
-                vertex = edge->to();
-            }
-
-            vertexLoop.append(vertex);
-            edgeLoop.append(edge);
-
-            edge = edge->next;
-        } while(edge != startEdge);
-
-        closeLoop(0, edgeLoop);
-#endif
-
-        /*
-
-        // Add face and connect boundary edges.
-        HalfEdge::Face * face = m_unifiedMesh->addFace();
-        face->setEdge(startEdge);
-
-        HalfEdge::Edge * edge = startEdge;
-        do {
-            edge->setFace(face);
-
-            edge = edge->next();
-        } while(edge != startEdge);
-
-        */
-
-
-        /*
-        uint edgeCount = 0;
-        HalfEdge::Edge * edge = startEdge;
-        do {
-            edgeCount++;
-            edge = edge->next();
-        } while(edge != startEdge);
-
-
-
-        // Count edges in this boundary.
-        uint edgeCount = 0;
-        HalfEdge::Edge * edge = startEdge;
-        do {
-            edgeCount++;
-            edge = edge->next();
-        } while(edge != startEdge);
-
-        // Trivial hole, fill with one triangle. This actually works for all convex boundaries with non colinear vertices.
-        if (edgeCount == 3) {
-            // Add face and connect boundary edges.
-            HalfEdge::Face * face = m_unifiedMesh->addFace();
-            face->setEdge(startEdge);
-
-            edge = startEdge;
-            do {
-                edge->setFace(face);
-
-                edge = edge->next();
-            } while(edge != startEdge);
-
-            // @@ Implement the above using addFace, it should now work with existing edges, as long as their face pointers is zero.
-
-        }
-        else {
-            // Ideally we should:
-            // - compute best fit plane of boundary vertices.
-            // - project boundary polygon onto plane.
-            // - triangulate boundary polygon.
-            // - add faces of the resulting triangulation.
-
-            // I don't have a good triangulator available. A more simple solution that works in more (but not all) cases:
-            // - compute boundary centroid.
-            // - add vertex centroid.
-            // - connect centroid vertex with boundary vertices.
-            // - connect radial edges with boundary edges.
-
-            // This should work for non-convex boundaries with colinear vertices as long as the kernel of the polygon is not empty.
-
-            // Compute boundary centroid:
-            Vector3 centroid_pos(0);
-            Vector2 centroid_tex(0);
-
-            HalfEdge::Edge * edge = startEdge;
-            do {
-                centroid_pos += edge->vertex()->pos;
-                centroid_tex += edge->vertex()->tex;
-                edge = edge->next();
-            } while(edge != startEdge);
-
-            centroid_pos *= (1.0f / edgeCount);
-            centroid_tex *= (1.0f / edgeCount);
-
-            HalfEdge::Vertex * centroid = m_unifiedMesh->addVertex(centroid_pos);
-            centroid->tex = centroid_tex;
-
-            // Add one pair of edges for each boundary vertex.
-            edge = startEdge;
-            do {
-                HalfEdge::Edge * next = edge->next();
-
-                nvCheck(edge->face() == NULL);
-                HalfEdge::Face * face = m_unifiedMesh->addFace(centroid->id(), edge->from()->id(), edge->to()->id());
-                
-                if (face != NULL) {
-                    nvCheck(edge->face() == face);
-                }
-                else {
-                    hasNewHoles = true;
-                }
-
-                edge = next;
-            } while(edge != startEdge);
-        }
-        */
-    }
-
-    /*nvDebugCheck(!hasNewHoles);
-
-    if (hasNewHoles) {
-        // Link boundary again, in case closeHoles created new holes!
-        m_unifiedMesh->linkBoundary();
-    }*/
-
-    // Because some algorithms do not expect sparse edge buffers.
-    //m_unifiedMesh->compactEdges();
-
-    // In case we messed up:
-    //m_unifiedMesh->linkBoundary();
-
-    getBoundaryEdges(m_unifiedMesh.ptr(), boundaryEdges);
-
-    boundaryCount = boundaryEdges.count();
-    nvDebugCheck(boundaryCount == 1);
-
-    //exportMesh(m_unifiedMesh.ptr(), "debug_hole_filled.obj");
-
-    return boundaryCount == 1;
-}
-
-
-// Transfer parameterization from unified mesh to chart mesh.
-void Chart::transferParameterization() {
-    nvDebugCheck(!m_isVertexMapped);
-
-    uint vertexCount = m_chartMesh->vertexCount();
-    for (uint v = 0; v < vertexCount; v++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(v);
-        HalfEdge::Vertex * unifiedVertex = m_unifiedMesh->vertexAt(mapChartVertexToUnifiedVertex(v));
-        vertex->tex = unifiedVertex->tex;
-    }
-}
-
-float Chart::computeSurfaceArea() const {
-    return nv::computeSurfaceArea(m_chartMesh.ptr()) * scale;
-}
-
-float Chart::computeParametricArea() const {
-    // This only makes sense in parameterized meshes.
-    nvDebugCheck(m_isDisk);            
-    nvDebugCheck(!m_isVertexMapped);
-
-    return nv::computeParametricArea(m_chartMesh.ptr());
-}
-
-Vector2 Chart::computeParametricBounds() const {
-    // This only makes sense in parameterized meshes.
-    nvDebugCheck(m_isDisk);
-    nvDebugCheck(!m_isVertexMapped);
-
-    Box bounds;
-    bounds.clearBounds();
-
-    uint vertexCount = m_chartMesh->vertexCount();
-    for (uint v = 0; v < vertexCount; v++) {
-        HalfEdge::Vertex * vertex = m_chartMesh->vertexAt(v);
-        bounds.addPointToBounds(Vector3(vertex->tex, 0));
-    }
-
-    return bounds.extents().xy();
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/param/Atlas.h b/thirdparty/thekla_atlas/nvmesh/param/Atlas.h
deleted file mode 100644
index 41cfaea9cb..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/Atlas.h
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright NVIDIA Corporation 2006 -- Ignacio Castano <icastano@nvidia.com>
-
-#pragma once
-#ifndef NV_MESH_ATLAS_H
-#define NV_MESH_ATLAS_H
-
-#include "nvcore/Array.h"
-#include "nvcore/Ptr.h"
-#include "nvmath/Vector.h"
-#include "nvmesh/nvmesh.h"
-#include "nvmesh/halfedge/Mesh.h"
-
-
-namespace nv
-{
-    namespace HalfEdge { class Mesh; }
-
-    class Chart;
-    class MeshCharts;
-    class VertexMap;
-
-    struct SegmentationSettings
-    {
-        SegmentationSettings();
-
-        float maxChartArea;
-        float maxBoundaryLength;
-
-        float proxyFitMetricWeight;
-        float roundnessMetricWeight;
-        float straightnessMetricWeight;
-        float normalSeamMetricWeight;
-        float textureSeamMetricWeight;
-    };
-
-
-    /// An atlas is a set of charts.
-    class Atlas
-    {
-    public:
-
-        Atlas();
-        ~Atlas();
-
-        uint meshCount() const { return m_meshChartsArray.count(); }
-        const MeshCharts * meshAt(uint i) const { return m_meshChartsArray[i]; }
-        MeshCharts * meshAt(uint i) { return m_meshChartsArray[i]; }
-
-        uint chartCount() const;
-        const Chart * chartAt(uint i) const;
-        Chart * chartAt(uint i);
-
-        // Add mesh charts and takes ownership.
-        void addMeshCharts(MeshCharts * meshCharts);
-
-        void extractCharts(const HalfEdge::Mesh * mesh);
-        void computeCharts(const HalfEdge::Mesh * mesh, const SegmentationSettings & settings, const Array<uint> & unchartedMaterialArray);
-
-
-        // Compute a trivial seamless texture similar to ZBrush.
-        //bool computeSeamlessTextureAtlas(bool groupFaces = true, bool scaleTiles = false, uint w = 1024, uint h = 1024);
-
-        void parameterizeCharts();
-
-        // Pack charts in the smallest possible rectangle.
-        float packCharts(int quality, float texelArea, bool blockAlign, bool conservative);
-        void setFailed() { failed = true; }
-        bool hasFailed() const { return failed; }
-
-    private:
-
-        bool failed;
-        Array<MeshCharts *> m_meshChartsArray;
-
-    };
-
-
-    // Set of charts corresponding to a single mesh.
-    class MeshCharts
-    {
-    public:
-        MeshCharts(const HalfEdge::Mesh * mesh);
-        ~MeshCharts();
-
-        uint chartCount() const { return m_chartArray.count(); }
-        uint vertexCount () const { return m_totalVertexCount; }
-
-        const Chart * chartAt(uint i) const { return m_chartArray[i]; }
-        Chart * chartAt(uint i) { return m_chartArray[i]; }
-
-        void computeVertexMap(const Array<uint> & unchartedMaterialArray);
-
-        // Extract the charts of the input mesh.
-        void extractCharts();
-
-        // Compute charts using a simple segmentation algorithm.
-        void computeCharts(const SegmentationSettings & settings, const Array<uint> & unchartedMaterialArray);
-
-        void parameterizeCharts();
-
-        uint faceChartAt(uint i) const { return m_faceChart[i]; }
-        uint faceIndexWithinChartAt(uint i) const { return m_faceIndex[i]; }
-
-        uint vertexCountBeforeChartAt(uint i) const { return m_chartVertexCountPrefixSum[i]; }
-
-    private:
-
-        const HalfEdge::Mesh * m_mesh;
-
-        Array<Chart *> m_chartArray;
-        
-        Array<uint> m_chartVertexCountPrefixSum;
-        uint m_totalVertexCount;
-
-        Array<uint> m_faceChart; // the chart of every face of the input mesh.
-        Array<uint> m_faceIndex; // the index within the chart for every face of the input mesh.
-    };
-
-
-    /// A chart is a connected set of faces with a certain topology (usually a disk).
-    class Chart
-    {
-    public:
-
-        Chart();
-
-        void build(const HalfEdge::Mesh * originalMesh, const Array<uint> & faceArray);
-        void buildVertexMap(const HalfEdge::Mesh * originalMesh, const Array<uint> & unchartedMaterialArray);
-
-        bool closeHoles();
-
-        bool isDisk() const { return m_isDisk; }
-        bool isVertexMapped() const { return m_isVertexMapped; }
-
-        uint vertexCount() const { return m_chartMesh->vertexCount(); }
-        uint colocalVertexCount() const { return m_unifiedMesh->vertexCount(); }
-
-        uint faceCount() const { return m_faceArray.count(); }
-        uint faceAt(uint i) const { return m_faceArray[i]; }
-
-        const HalfEdge::Mesh * chartMesh() const { return m_chartMesh.ptr(); }
-        HalfEdge::Mesh * chartMesh() { return m_chartMesh.ptr(); }
-        const HalfEdge::Mesh * unifiedMesh() const { return m_unifiedMesh.ptr(); }
-        HalfEdge::Mesh * unifiedMesh() { return m_unifiedMesh.ptr(); }
-
-        //uint vertexIndex(uint i) const { return m_vertexIndexArray[i]; }
-
-        uint mapChartVertexToOriginalVertex(uint i) const { return m_chartToOriginalMap[i]; }
-        uint mapChartVertexToUnifiedVertex(uint i) const { return m_chartToUnifiedMap[i]; }
-
-        const Array<uint> & faceArray() const { return m_faceArray; }
-
-        void transferParameterization();
-
-        float computeSurfaceArea() const;
-        float computeParametricArea() const;
-        Vector2 computeParametricBounds() const;
-
-
-        float scale = 1.0f;
-        uint vertexMapWidth;
-        uint vertexMapHeight;
-
-    private:
-
-        bool closeLoop(uint start, const Array<HalfEdge::Edge *> & loop);
-
-        // Chart mesh.
-        AutoPtr<HalfEdge::Mesh> m_chartMesh;
-        AutoPtr<HalfEdge::Mesh> m_unifiedMesh;
-
-        bool m_isDisk;
-        bool m_isVertexMapped;
-
-        // List of faces of the original mesh that belong to this chart.
-        Array<uint> m_faceArray;
-
-        // Map vertices of the chart mesh to vertices of the original mesh.
-        Array<uint> m_chartToOriginalMap;
-
-        Array<uint> m_chartToUnifiedMap;
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_ATLAS_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/AtlasBuilder.cpp b/thirdparty/thekla_atlas/nvmesh/param/AtlasBuilder.cpp
deleted file mode 100644
index bd2140c2f3..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/AtlasBuilder.cpp
+++ /dev/null
@@ -1,1320 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh.h" // pch
-
-#include "AtlasBuilder.h"
-#include "Util.h"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/halfedge/Vertex.h"
-
-#include "nvmath/Matrix.inl"
-#include "nvmath/Vector.inl"
-
-//#include "nvcore/IntroSort.h"
-#include "nvcore/Array.inl"
-
-#include <algorithm> // std::sort
-
-#include <float.h> // FLT_MAX
-#include <limits.h> // UINT_MAX
-
-using namespace nv;
-
-namespace
-{
-
-    // Dummy implementation of a priority queue using sort at insertion.
-    // - Insertion is o(n)
-    // - Smallest element goes at the end, so that popping it is o(1).
-    // - Resorting is n*log(n)
-    // @@ Number of elements in the queue is usually small, and we'd have to rebalance often. I'm not sure it's worth implementing a heap.
-    // @@ Searcing at removal would remove the need for sorting when priorities change.
-    struct PriorityQueue
-    {
-        PriorityQueue(uint size = UINT_MAX) : maxSize(size) {}
-
-        void push(float priority, uint face) {
-            uint i = 0;
-            const uint count = pairs.count();
-            for (; i < count; i++) {
-                if (pairs[i].priority > priority) break;
-            }
-
-            Pair p = { priority, face };
-            pairs.insertAt(i, p);
-
-            if (pairs.count() > maxSize) {
-                pairs.removeAt(0);
-            }
-        }
-
-        // push face out of order, to be sorted later.
-        void push(uint face) {
-            Pair p = { 0.0f, face };
-            pairs.append(p);
-        }
-
-        uint pop() {
-            uint f = pairs.back().face;
-            pairs.pop_back();
-            return f;
-        }
-
-        void sort() {
-            //nv::sort(pairs); // @@ My intro sort appears to be much slower than it should!
-            std::sort(pairs.buffer(), pairs.buffer() + pairs.count());
-        }
-
-        void clear() {
-            pairs.clear();
-        }
-
-        uint count() const { return pairs.count(); }
-
-        float firstPriority() const { return pairs.back().priority; }
-
-
-        const uint maxSize;
-        
-        struct Pair {
-            bool operator <(const Pair & p) const { return priority > p.priority; } // !! Sort in inverse priority order!
-            float priority;
-            uint face;
-        };
-        
-
-        Array<Pair> pairs;
-    };
-
-    static bool isNormalSeam(const HalfEdge::Edge * edge) {
-        return (edge->vertex->nor != edge->pair->next->vertex->nor || edge->next->vertex->nor != edge->pair->vertex->nor);
-    }
-
-    static bool isTextureSeam(const HalfEdge::Edge * edge) {
-        return (edge->vertex->tex != edge->pair->next->vertex->tex || edge->next->vertex->tex != edge->pair->vertex->tex);
-    }
-
-} // namespace
-
-
-struct nv::ChartBuildData
-{
-    ChartBuildData(int id) : id(id) {
-        planeNormal = Vector3(0);
-        centroid = Vector3(0);
-        coneAxis = Vector3(0);
-        coneAngle = 0;
-        area = 0;
-        boundaryLength = 0;
-        normalSum = Vector3(0);
-        centroidSum = Vector3(0);
-    }
-
-    int id;
-
-    // Proxy info:
-    Vector3 planeNormal;
-    Vector3 centroid;
-    Vector3 coneAxis;
-    float coneAngle;
-    
-    float area;
-    float boundaryLength;
-    Vector3 normalSum;
-    Vector3 centroidSum;
-    
-    Array<uint> seeds;  // @@ These could be a pointers to the HalfEdge faces directly.
-	Array<uint> faces;
-    PriorityQueue candidates;
-};
-
-
-
-AtlasBuilder::AtlasBuilder(const HalfEdge::Mesh * m) : mesh(m), facesLeft(m->faceCount())
-{
-    const uint faceCount = m->faceCount();
-    faceChartArray.resize(faceCount, -1);
-    faceCandidateArray.resize(faceCount, -1);
-
-    // @@ Floyd for the whole mesh is too slow. We could compute floyd progressively per patch as the patch grows. We need a better solution to compute most central faces.
-    //computeShortestPaths();
-
-    // Precompute edge lengths and face areas.
-    uint edgeCount = m->edgeCount();
-    edgeLengths.resize(edgeCount);
-
-    for (uint i = 0; i < edgeCount; i++) {
-        uint id = m->edgeAt(i)->id;
-        nvDebugCheck(id / 2 == i);
-
-        edgeLengths[i] = m->edgeAt(i)->length();
-    }
-
-    faceAreas.resize(faceCount);
-    for (uint i = 0; i < faceCount; i++) {
-        faceAreas[i] = m->faceAt(i)->area();
-    }
-}
-
-AtlasBuilder::~AtlasBuilder()
-{
-    const uint chartCount = chartArray.count();
-    for (uint i = 0; i < chartCount; i++)
-    {
-        delete chartArray[i];
-    }
-}
-
-
-void AtlasBuilder::markUnchartedFaces(const Array<uint> & unchartedFaces)
-{
-    const uint unchartedFaceCount = unchartedFaces.count();
-    for (uint i = 0; i < unchartedFaceCount; i++){ 
-        uint f = unchartedFaces[i];
-        faceChartArray[f] = -2;
-        //faceCandidateArray[f] = -2; // @@ ?
-
-        removeCandidate(f);
-    }
-
-    nvDebugCheck(facesLeft >= unchartedFaceCount);
-    facesLeft -= unchartedFaceCount;
-}
-
-
-void AtlasBuilder::computeShortestPaths()
-{
-    const uint faceCount = mesh->faceCount();
-    shortestPaths.resize(faceCount*faceCount, FLT_MAX);
-
-    // Fill edges:
-    for (uint i = 0; i < faceCount; i++)
-    {
-        shortestPaths[i*faceCount + i] = 0.0f;
-
-        const HalfEdge::Face * face_i = mesh->faceAt(i);
-        Vector3 centroid_i = face_i->centroid();
-
-        for (HalfEdge::Face::ConstEdgeIterator it(face_i->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Edge * edge = it.current();
-
-            if (!edge->isBoundary())
-            {
-                const HalfEdge::Face * face_j = edge->pair->face;
-
-                uint j = face_j->id;
-                Vector3 centroid_j = face_j->centroid();
-
-                shortestPaths[i*faceCount + j] = shortestPaths[j*faceCount + i] = length(centroid_i - centroid_j);
-            }
-        }
-    }
-
-    // Use Floyd-Warshall algorithm to compute all paths:
-    for (uint k = 0; k < faceCount; k++)
-    {
-        for (uint i = 0; i < faceCount; i++)
-        {
-            for (uint j = 0; j < faceCount; j++)
-            {
-                shortestPaths[i*faceCount + j] = min(shortestPaths[i*faceCount + j], shortestPaths[i*faceCount + k]+shortestPaths[k*faceCount + j]);
-            }
-        }
-    }
-}
-
-
-void AtlasBuilder::placeSeeds(float threshold, uint maxSeedCount)
-{
-    // Instead of using a predefiened number of seeds:
-    // - Add seeds one by one, growing chart until a certain treshold.
-    // - Undo charts and restart growing process.
-
-    // @@ How can we give preference to faces far from sharp features as in the LSCM paper?
-    //   - those points can be found using a simple flood filling algorithm.
-    //   - how do we weight the probabilities?
-
-    for (uint i = 0; i < maxSeedCount; i++)
-    {
-        if (facesLeft == 0) {
-            // No faces left, stop creating seeds.
-            break;
-        }
-
-        createRandomChart(threshold);
-    }
-}
-
-
-void AtlasBuilder::createRandomChart(float threshold)
-{
-    ChartBuildData * chart = new ChartBuildData(chartArray.count());
-    chartArray.append(chart);
-
-    // Pick random face that is not used by any chart yet.
-    uint randomFaceIdx = rand.getRange(facesLeft - 1);
-    uint i = 0;
-    for (uint f = 0; f != randomFaceIdx; f++, i++)
-    {
-        while (faceChartArray[i] != -1) i++;
-    }
-    while (faceChartArray[i] != -1) i++;
-
-    chart->seeds.append(i);
-
-    addFaceToChart(chart, i, true);
-
-    // Grow the chart as much as possible within the given threshold.
-    growChart(chart, threshold * 0.5f, facesLeft);
-    //growCharts(threshold - threshold * 0.75f / chartCount(), facesLeft);
-}
-
-void AtlasBuilder::addFaceToChart(ChartBuildData * chart, uint f, bool recomputeProxy)
-{
-    // Add face to chart.
-    chart->faces.append(f);
-
-    nvDebugCheck(faceChartArray[f] == -1);
-    faceChartArray[f] = chart->id;
-
-    facesLeft--;
-
-    // Update area and boundary length.
-    chart->area = evaluateChartArea(chart, f);
-    chart->boundaryLength = evaluateBoundaryLength(chart, f);
-    chart->normalSum = evaluateChartNormalSum(chart, f);
-    chart->centroidSum = evaluateChartCentroidSum(chart, f);
-
-    if (recomputeProxy) {
-        // Update proxy and candidate's priorities.
-        updateProxy(chart);
-    }
-
-    // Update candidates.
-    removeCandidate(f);
-    updateCandidates(chart, f);
-    updatePriorities(chart);
-}
-
-// @@ Get N best candidates in one pass.
-const AtlasBuilder::Candidate & AtlasBuilder::getBestCandidate() const
-{
-    uint best = 0;
-    float bestCandidateMetric = FLT_MAX;
-
-    const uint candidateCount = candidateArray.count();
-    nvCheck(candidateCount > 0);
-
-    for (uint i = 0; i < candidateCount; i++)
-    {
-        const Candidate & candidate = candidateArray[i];
-    
-        if (candidate.metric < bestCandidateMetric) {
-            bestCandidateMetric = candidate.metric;
-            best = i;
-        }
-    }
-
-    return candidateArray[best];
-}
-
-
-// Returns true if any of the charts can grow more.
-bool AtlasBuilder::growCharts(float threshold, uint faceCount)
-{
-#if 1 // Using one global list.
-
-    faceCount = min(faceCount, facesLeft);
-
-    for (uint i = 0; i < faceCount; i++)
-    {
-        const Candidate & candidate = getBestCandidate();
-        
-        if (candidate.metric > threshold) {
-            return false; // Can't grow more.
-        }
-
-        addFaceToChart(candidate.chart, candidate.face);
-    }
-
-    return facesLeft != 0; // Can continue growing.
-
-#else // Using one list per chart.
-    bool canGrowMore = false;
-
-    const uint chartCount = chartArray.count();
-    for (uint i = 0; i < chartCount; i++)
-    {
-        if (growChart(chartArray[i], threshold, faceCount))
-        {
-            canGrowMore = true;
-        }
-    }
-
-    return canGrowMore;
-#endif
-}
-
-bool AtlasBuilder::growChart(ChartBuildData * chart, float threshold, uint faceCount)
-{
-    // Try to add faceCount faces within threshold to chart.
-    for (uint i = 0; i < faceCount; )
-    {
-        if (chart->candidates.count() == 0 || chart->candidates.firstPriority() > threshold)
-        {
-            return false;
-        }
-
-        uint f = chart->candidates.pop();
-        if (faceChartArray[f] == -1)
-        {
-            addFaceToChart(chart, f);
-            i++;
-        }
-    }
-
-    if (chart->candidates.count() == 0 || chart->candidates.firstPriority() > threshold)
-    {
-        return false;
-    }
-
-    return true;
-}
-
-
-void AtlasBuilder::resetCharts()
-{
-    const uint faceCount = mesh->faceCount();
-    for (uint i = 0; i < faceCount; i++)
-    {
-        faceChartArray[i] = -1;
-        faceCandidateArray[i] = -1;
-    }
-
-    facesLeft = faceCount;
-
-    candidateArray.clear();
-
-    const uint chartCount = chartArray.count();
-    for (uint i = 0; i < chartCount; i++)
-    {
-        ChartBuildData * chart = chartArray[i];
-
-        const uint seed = chart->seeds.back();
-
-        chart->area = 0.0f;
-        chart->boundaryLength = 0.0f;
-        chart->normalSum = Vector3(0);
-        chart->centroidSum = Vector3(0);
-
-        chart->faces.clear();
-        chart->candidates.clear();
-
-        addFaceToChart(chart, seed);
-    }
-}
-
-
-void AtlasBuilder::updateCandidates(ChartBuildData * chart, uint f)
-{
-    const HalfEdge::Face * face = mesh->faceAt(f);
-
-    // Traverse neighboring faces, add the ones that do not belong to any chart yet.
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current()->pair;
-
-        if (!edge->isBoundary())
-        {
-            uint f = edge->face->id;
-
-            if (faceChartArray[f] == -1)
-            {
-                chart->candidates.push(f);
-            }
-        }
-    }
-}
-
-
-void AtlasBuilder::updateProxies()
-{
-    const uint chartCount = chartArray.count();
-    for (uint i = 0; i < chartCount; i++)
-    {
-        updateProxy(chartArray[i]);
-    }
-}
-
-
-namespace {
-
-    float absoluteSum(Vector4::Arg v)
-    {
-        return fabs(v.x) + fabs(v.y) + fabs(v.z) + fabs(v.w);
-    }
-
-    //#pragma message(NV_FILE_LINE "FIXME: Using the c=cos(teta) substitution, the equation system becomes linear and we can avoid the newton solver.")
-
-    struct ConeFitting
-    {
-        ConeFitting(const HalfEdge::Mesh * m, float g, float tf, float tx) : mesh(m), gamma(g), tolf(tf), tolx(tx), F(0), D(0), H(0) {
-        }
-
-        void addTerm(Vector3 N, float A)
-        {
-            const float c = cosf(X.w);
-            const float s = sinf(X.w);
-            const float tmp = dot(X.xyz(), N) - c;
-
-            F += tmp * tmp;
-
-            D.x += 2 * X.x * tmp;
-            D.y += 2 * X.y * tmp;
-            D.z += 2 * X.z * tmp;
-            D.w += 2 * s * tmp;
-
-            H(0,0) = 2 * X.x * N.x + 2 * tmp;
-            H(0,1) = 2 * X.x * N.y;
-            H(0,2) = 2 * X.x * N.z;
-            H(0,3) = 2 * X.x * s;
-
-            H(1,0) = 2 * X.y * N.x;
-            H(1,1) = 2 * X.y * N.y + 2 * tmp;
-            H(1,2) = 2 * X.y * N.z;
-            H(1,3) = 2 * X.y * s;
-
-            H(2,0) = 2 * X.z * N.x;
-            H(2,1) = 2 * X.z * N.y;
-            H(2,2) = 2 * X.z * N.z + 2 * tmp;
-            H(2,3) = 2 * X.z * s;
-
-            H(3,0) = 2 * s * N.x;
-            H(3,1) = 2 * s * N.y;
-            H(3,2) = 2 * s * N.z;
-            H(3,3) = 2 * s * s + 2 * c * tmp;
-        }
-
-        Vector4 solve(ChartBuildData * chart, Vector4 start)
-        {
-            const uint faceCount = chart->faces.count();
-
-            X = start;
-            
-            Vector4 dX;
-
-            do {
-                for (uint i = 0; i < faceCount; i++)
-                {
-                    const HalfEdge::Face * face = mesh->faceAt(chart->faces[i]);
-
-                    addTerm(face->normal(), face->area());
-                }
-
-                Vector4 dX;
-                //solveKramer(H, D, &dX);
-                solveLU(H, D, &dX);
-
-                // @@ Do a full newton step and reduce by half if F doesn't decrease.
-                X -= gamma * dX;
-
-                // Constrain normal to be normalized.
-                X = Vector4(normalize(X.xyz()), X.w);
-                
-            } while(absoluteSum(D) > tolf || absoluteSum(dX) > tolx);
-
-            return X;
-        }
-
-        HalfEdge::Mesh const * const mesh;
-        const float gamma;
-        const float tolf;
-        const float tolx;
-
-        Vector4 X;
-
-        float F;
-        Vector4 D;
-        Matrix H;
-    };
-
-    // Unnormalized face normal assuming it's a triangle.
-    static Vector3 triangleNormal(const HalfEdge::Face * face)
-    {
-        Vector3 p0 = face->edge->vertex->pos;
-        Vector3 p1 = face->edge->next->vertex->pos;
-        Vector3 p2 = face->edge->next->next->vertex->pos;
-
-        Vector3 e0 = p2 - p0;
-        Vector3 e1 = p1 - p0;
-
-        return normalizeSafe(cross(e0, e1), Vector3(0), 0.0f);
-    }
-
-    static Vector3 triangleNormalAreaScaled(const HalfEdge::Face * face)
-    {
-        Vector3 p0 = face->edge->vertex->pos;
-        Vector3 p1 = face->edge->next->vertex->pos;
-        Vector3 p2 = face->edge->next->next->vertex->pos;
-
-        Vector3 e0 = p2 - p0;
-        Vector3 e1 = p1 - p0;
-
-        return cross(e0, e1);
-    }
-
-    // Average of the edge midpoints weighted by the edge length.
-    // I want a point inside the triangle, but closer to the cirumcenter.
-    static Vector3 triangleCenter(const HalfEdge::Face * face)
-    {
-        Vector3 p0 = face->edge->vertex->pos;
-        Vector3 p1 = face->edge->next->vertex->pos;
-        Vector3 p2 = face->edge->next->next->vertex->pos;
-
-        float l0 = length(p1 - p0);
-        float l1 = length(p2 - p1);
-        float l2 = length(p0 - p2);
-
-        Vector3 m0 = (p0 + p1) * l0 / (l0 + l1 + l2);
-        Vector3 m1 = (p1 + p2) * l1 / (l0 + l1 + l2);
-        Vector3 m2 = (p2 + p0) * l2 / (l0 + l1 + l2);
-
-        return m0 + m1 + m2;
-    }
-
-} // namespace
-
-void AtlasBuilder::updateProxy(ChartBuildData * chart)
-{
-    //#pragma message(NV_FILE_LINE "TODO: Use best fit plane instead of average normal.")
-
-    chart->planeNormal = normalizeSafe(chart->normalSum, Vector3(0), 0.0f);
-    chart->centroid = chart->centroidSum / float(chart->faces.count());
-
-    //#pragma message(NV_FILE_LINE "TODO: Experiment with conic fitting.")
-
-    // F = (Nc*Nt - cos Oc)^2 = (x*Nt_x + y*Nt_y + z*Nt_z - cos w)^2
-    // dF/dx = 2 * x * (x*Nt_x + y*Nt_y + z*Nt_z - cos w)
-    // dF/dy = 2 * y * (x*Nt_x + y*Nt_y + z*Nt_z - cos w)
-    // dF/dz = 2 * z * (x*Nt_x + y*Nt_y + z*Nt_z - cos w)
-    // dF/dw = 2 * sin w * (x*Nt_x + y*Nt_y + z*Nt_z - cos w)
-
-    // JacobianMatrix({
-    // 2 * x * (x*Nt_x + y*Nt_y + z*Nt_z - Cos(w)),
-    // 2 * y * (x*Nt_x + y*Nt_y + z*Nt_z - Cos(w)),
-    // 2 * z * (x*Nt_x + y*Nt_y + z*Nt_z - Cos(w)),
-    // 2 * Sin(w) * (x*Nt_x + y*Nt_y + z*Nt_z - Cos(w))}, {x,y,z,w})
-
-    // H[0,0] = 2 * x * Nt_x + 2 * (x*Nt_x + y*Nt_y + z*Nt_z - cos(w));
-    // H[0,1] = 2 * x * Nt_y;
-    // H[0,2] = 2 * x * Nt_z;
-    // H[0,3] = 2 * x * sin(w);
-
-    // H[1,0] = 2 * y * Nt_x;
-    // H[1,1] = 2 * y * Nt_y + 2 * (x*Nt_x + y*Nt_y + z*Nt_z - cos(w));
-    // H[1,2] = 2 * y * Nt_z;
-    // H[1,3] = 2 * y * sin(w);
-
-    // H[2,0] = 2 * z * Nt_x;
-    // H[2,1] = 2 * z * Nt_y;
-    // H[2,2] = 2 * z * Nt_z + 2 * (x*Nt_x + y*Nt_y + z*Nt_z - cos(w));
-    // H[2,3] = 2 * z * sin(w);
-
-    // H[3,0] = 2 * sin(w) * Nt_x;
-    // H[3,1] = 2 * sin(w) * Nt_y;
-    // H[3,2] = 2 * sin(w) * Nt_z;
-    // H[3,3] = 2 * sin(w) * sin(w) + 2 * cos(w) * (x*Nt_x + y*Nt_y + z*Nt_z - cos(w));
-
-    // @@ Cone fitting might be quite slow.
-
-    /*ConeFitting coneFitting(mesh, 0.1f, 0.001f, 0.001f);
-
-    Vector4 start = Vector4(chart->coneAxis, chart->coneAngle);
-    Vector4 solution = coneFitting.solve(chart, start);
-
-    chart->coneAxis = solution.xyz();
-    chart->coneAngle = solution.w;*/
-}
-
-
-
-bool AtlasBuilder::relocateSeeds()
-{
-    bool anySeedChanged = false;
-
-    const uint chartCount = chartArray.count();
-    for (uint i = 0; i < chartCount; i++)
-    {
-        if (relocateSeed(chartArray[i]))
-        {
-            anySeedChanged = true;
-        }
-    }
-
-    return anySeedChanged;
-}
-
-
-bool AtlasBuilder::relocateSeed(ChartBuildData * chart)
-{
-    Vector3 centroid = computeChartCentroid(chart);
-
-    const uint N = 10;  // @@ Hardcoded to 10?
-    PriorityQueue bestTriangles(N); 
-
-    // Find the first N triangles that fit the proxy best.
-    const uint faceCount = chart->faces.count();
-    for (uint i = 0; i < faceCount; i++)
-    {
-        float priority = evaluateProxyFitMetric(chart, chart->faces[i]);
-        bestTriangles.push(priority, chart->faces[i]);
-    }
-
-    // Of those, choose the most central triangle.
-    uint mostCentral;
-    float maxDistance = -1;
-
-    const uint bestCount = bestTriangles.count();
-    for (uint i = 0; i < bestCount; i++)
-    {
-        const HalfEdge::Face * face = mesh->faceAt(bestTriangles.pairs[i].face);
-        Vector3 faceCentroid = triangleCenter(face);
-
-        float distance = length(centroid - faceCentroid);
-
-        /*#pragma message(NV_FILE_LINE "TODO: Implement evaluateDistanceToBoundary.")
-        float distance = evaluateDistanceToBoundary(chart, bestTriangles.pairs[i].face);*/
-        
-        if (distance > maxDistance)
-        {
-            maxDistance = distance;
-            mostCentral = bestTriangles.pairs[i].face;
-        }
-    }
-    nvDebugCheck(maxDistance >= 0);
-
-    // In order to prevent k-means cyles we record all the previously chosen seeds.
-    uint index;
-    if (chart->seeds.find(mostCentral, &index))
-    {
-        // Move new seed to the end of the seed array.
-        uint last = chart->seeds.count() - 1;
-        swap(chart->seeds[index], chart->seeds[last]);
-        return false;
-    }
-    else
-    {
-        // Append new seed.
-        chart->seeds.append(mostCentral);
-        return true;
-    }
-}
-
-void AtlasBuilder::removeCandidate(uint f)
-{
-    int c = faceCandidateArray[f];
-    if (c != -1) {
-        faceCandidateArray[f] = -1;
-
-        if (c == candidateArray.count() - 1) {
-            candidateArray.popBack();
-        }
-        else {
-            candidateArray.replaceWithLast(c);
-            faceCandidateArray[candidateArray[c].face] = c;
-        }
-    }
-}
-
-void AtlasBuilder::updateCandidate(ChartBuildData * chart, uint f, float metric)
-{
-    if (faceCandidateArray[f] == -1) {
-        const uint index = candidateArray.count();
-        faceCandidateArray[f] = index;
-        candidateArray.resize(index + 1);
-        candidateArray[index].face = f;
-        candidateArray[index].chart = chart;
-        candidateArray[index].metric = metric;
-    }
-    else {
-        int c = faceCandidateArray[f];
-        nvDebugCheck(c != -1);
-
-        Candidate & candidate = candidateArray[c];
-        nvDebugCheck(candidate.face == f);
-
-        if (metric < candidate.metric || chart == candidate.chart) {
-            candidate.metric = metric;
-            candidate.chart = chart;
-        }
-    }
-
-}
-
-
-void AtlasBuilder::updatePriorities(ChartBuildData * chart)
-{
-    // Re-evaluate candidate priorities.
-    uint candidateCount = chart->candidates.count();
-    for (uint i = 0; i < candidateCount; i++)
-    {
-        chart->candidates.pairs[i].priority = evaluatePriority(chart, chart->candidates.pairs[i].face);
-
-        if (faceChartArray[chart->candidates.pairs[i].face] == -1)
-        {
-            updateCandidate(chart, chart->candidates.pairs[i].face, chart->candidates.pairs[i].priority);
-        }
-    }
-
-    // Sort candidates.
-    chart->candidates.sort();
-}
-
-
-// Evaluate combined metric.
-float AtlasBuilder::evaluatePriority(ChartBuildData * chart, uint face)
-{
-    // Estimate boundary length and area:
-    float newBoundaryLength = evaluateBoundaryLength(chart, face);
-    float newChartArea = evaluateChartArea(chart, face);
-
-    float F = evaluateProxyFitMetric(chart, face);
-    float C = evaluateRoundnessMetric(chart, face, newBoundaryLength, newChartArea);
-    float P = evaluateStraightnessMetric(chart, face);
-
-    // Penalize faces that cross seams, reward faces that close seams or reach boundaries.
-    float N = evaluateNormalSeamMetric(chart, face);
-    float T = evaluateTextureSeamMetric(chart, face);
-
-    //float R = evaluateCompletenessMetric(chart, face);
-
-    //float D = evaluateDihedralAngleMetric(chart, face);
-    // @@ Add a metric based on local dihedral angle.
-
-    // @@ Tweaking the normal and texture seam metrics.
-    // - Cause more impedance. Never cross 90 degree edges.
-    // - 
-
-    float cost = float(
-        settings.proxyFitMetricWeight * F + 
-        settings.roundnessMetricWeight * C + 
-        settings.straightnessMetricWeight * P +
-        settings.normalSeamMetricWeight * N +
-        settings.textureSeamMetricWeight * T);
-
-    /*cost = settings.proxyFitMetricWeight * powf(F, settings.proxyFitMetricExponent);
-    cost = max(cost, settings.roundnessMetricWeight * powf(C, settings.roundnessMetricExponent));
-    cost = max(cost, settings.straightnessMetricWeight * pow(P, settings.straightnessMetricExponent));
-    cost = max(cost, settings.normalSeamMetricWeight * N);
-    cost = max(cost, settings.textureSeamMetricWeight * T);*/
-
-    // Enforce limits strictly:
-    if (newChartArea > settings.maxChartArea) cost = FLT_MAX;
-    if (newBoundaryLength > settings.maxBoundaryLength) cost = FLT_MAX;
-
-    // Make sure normal seams are fully respected:
-    if (settings.normalSeamMetricWeight >= 1000 && N != 0) cost = FLT_MAX;
-
-    nvCheck(isFinite(cost));
-    return cost;
-}
-
-
-// Returns a value in [0-1].
-float AtlasBuilder::evaluateProxyFitMetric(ChartBuildData * chart, uint f)
-{
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    Vector3 faceNormal = triangleNormal(face);
-    //return square(dot(chart->coneAxis, faceNormal) - cosf(chart->coneAngle));
-
-    // Use plane fitting metric for now:
-    //return square(1 - dot(faceNormal, chart->planeNormal)); // @@ normal deviations should be weighted by face area
-    return 1 - dot(faceNormal, chart->planeNormal); // @@ normal deviations should be weighted by face area
-
-    // Find distance to chart.
-    /*Vector3 faceCentroid = face->centroid();
-
-    float dist = 0;
-    int count = 0;
-
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current();
-
-        if (!edge->isBoundary()) {
-            const HalfEdge::Face * neighborFace = edge->pair()->face();
-            if (faceChartArray[neighborFace->id()] == chart->id) {
-                dist += length(neighborFace->centroid() - faceCentroid);
-                count++;
-            }
-        }
-    }
-
-    dist /= (count * count);
-
-    return (1 - dot(faceNormal, chart->planeNormal)) * dist;*/
-
-    //return (1 - dot(faceNormal, chart->planeNormal));
-}
-
-float AtlasBuilder::evaluateDistanceToBoundary(ChartBuildData * chart, uint face)
-{
-//#pragma message(NV_FILE_LINE "TODO: Evaluate distance to boundary metric.")
-
-    // @@ This is needed for the seed relocation code.
-    // @@ This could provide a better roundness metric.
-    
-    return 0.0f;
-}
-
-float AtlasBuilder::evaluateDistanceToSeed(ChartBuildData * chart, uint f)
-{
-    //const uint seed = chart->seeds.back();
-    //const uint faceCount = mesh->faceCount();
-    //return shortestPaths[seed * faceCount + f];
-
-    const HalfEdge::Face * seed = mesh->faceAt(chart->seeds.back());
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    return length(triangleCenter(seed) - triangleCenter(face));
-}
-
-
-float AtlasBuilder::evaluateRoundnessMetric(ChartBuildData * chart, uint face, float newBoundaryLength, float newChartArea)
-{
-    // @@ D-charts use distance to seed.
-    // C(c,t) = pi * D(S_c,t)^2 / A_c
-    //return PI * square(evaluateDistanceToSeed(chart, face)) / chart->area;
-    //return PI * square(evaluateDistanceToSeed(chart, face)) / chart->area;
-    //return 2 * PI * evaluateDistanceToSeed(chart, face) / chart->boundaryLength;
-
-    // Garland's Hierarchical Face Clustering paper uses ratio between boundary and area, which is easier to compute and might work as well:
-    // roundness = D^2/4*pi*A -> circle = 1, non circle greater than 1
-
-    //return square(newBoundaryLength) / (newChartArea * 4 * PI);
-    float roundness = square(chart->boundaryLength) / chart->area;
-    float newRoundness = square(newBoundaryLength) / newChartArea;
-    if (newRoundness > roundness) {
-        return square(newBoundaryLength) / (newChartArea * 4 * PI);
-    }
-    else {
-        // Offer no impedance to faces that improve roundness.
-        return 0;
-    }
-
-    //return square(newBoundaryLength) / (4 * PI * newChartArea);
-    //return clamp(1 - (4 * PI * newChartArea) / square(newBoundaryLength), 0.0f, 1.0f);
-
-    // Use the ratio between the new roundness vs. the previous roundness.
-    // - If we use the absolute metric, when the initial face is very long, then it's hard to make any progress.
-    //return (square(newBoundaryLength) * chart->area) / (square(chart->boundaryLength) * newChartArea);
-    //return (4 * PI * newChartArea) / square(newBoundaryLength) - (4 * PI * chart->area) / square(chart->boundaryLength);
-
-    //if (square(newBoundaryLength) * chart->area) / (square(chart->boundaryLength) * newChartArea);
-
-}
-
-float AtlasBuilder::evaluateStraightnessMetric(ChartBuildData * chart, uint f)
-{
-    float l_out = 0.0f;
-    float l_in = 0.0f;
-
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current();
-
-        //float l = edge->length();
-        float l = edgeLengths[edge->id/2];
-
-        if (edge->isBoundary())
-        {
-            l_out += l;
-        }
-        else
-        {
-            uint neighborFaceId = edge->pair->face->id;
-            if (faceChartArray[neighborFaceId] != chart->id) {
-                l_out += l;
-            }
-            else {
-                l_in += l;
-            }
-        }
-    }
-    nvDebugCheck(l_in != 0.0f); // Candidate face must be adjacent to chart. @@ This is not true if the input mesh has zero-length edges.
-
-    //return l_out / l_in;
-    float ratio = (l_out - l_in) / (l_out + l_in);
-    //if (ratio < 0) ratio *= 10; // Encourage closing gaps.
-    return min(ratio, 0.0f); // Only use the straightness metric to close gaps.
-    //return ratio;
-}
-
-
-float AtlasBuilder::evaluateNormalSeamMetric(ChartBuildData * chart, uint f)
-{
-    float seamFactor = 0.0f;
-    float totalLength = 0.0f;
-    
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current();
-
-        if (edge->isBoundary()) {
-            continue;
-        }
-
-        const uint neighborFaceId = edge->pair->face->id;
-        if (faceChartArray[neighborFaceId] != chart->id) {
-            continue;
-        }
-
-        //float l = edge->length();
-        float l = edgeLengths[edge->id/2];
-
-        totalLength += l;
-
-        if (!edge->isSeam()) {
-            continue;
-        }
-
-        // Make sure it's a normal seam.
-        if (isNormalSeam(edge))
-        {
-            float d0 = clamp(dot(edge->vertex->nor, edge->pair->next->vertex->nor), 0.0f, 1.0f);
-            float d1 = clamp(dot(edge->next->vertex->nor, edge->pair->vertex->nor), 0.0f, 1.0f);
-            //float a0 = clamp(acosf(d0) / (PI/2), 0.0f, 1.0f);
-            //float a1 = clamp(acosf(d1) / (PI/2), 0.0f, 1.0f);
-            //l *= (a0 + a1) * 0.5f;
-
-            l *= 1 - (d0 + d1) * 0.5f;
-
-            seamFactor += l;
-        }
-    }
-
-    if (seamFactor == 0) return 0.0f;
-    return seamFactor / totalLength;
-}
-
-
-float AtlasBuilder::evaluateTextureSeamMetric(ChartBuildData * chart, uint f)
-{
-    float seamLength = 0.0f;
-    //float newSeamLength = 0.0f;
-    //float oldSeamLength = 0.0f;
-    float totalLength = 0.0f;
-    
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current();
-
-        /*float l = edge->length();
-        totalLength += l;
-
-        if (edge->isBoundary() || !edge->isSeam()) {
-            continue;
-        }
-
-        // Make sure it's a texture seam.
-        if (isTextureSeam(edge))
-        {
-            uint neighborFaceId = edge->pair()->face()->id();
-            if (faceChartArray[neighborFaceId] != chart->id) {
-                newSeamLength += l;
-            }
-            else {
-                oldSeamLength += l;
-            }
-        }*/
-
-        if (edge->isBoundary()) {
-            continue;
-        }
-
-        const uint neighborFaceId = edge->pair->face->id;
-        if (faceChartArray[neighborFaceId] != chart->id) {
-            continue;
-        }
-
-        //float l = edge->length();
-        float l = edgeLengths[edge->id/2];
-        totalLength += l;
-
-        if (!edge->isSeam()) {
-            continue;
-        }
-
-        // Make sure it's a texture seam.
-        if (isTextureSeam(edge))
-        {
-            seamLength += l;
-        }
-    }
-
-    if (seamLength == 0.0f) {
-        return 0.0f; // Avoid division by zero.
-    }
-    
-    return seamLength / totalLength;
-}
-
-
-float AtlasBuilder::evaluateSeamMetric(ChartBuildData * chart, uint f)
-{
-    float newSeamLength = 0.0f;
-    float oldSeamLength = 0.0f;
-    float totalLength = 0.0f;
-    
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current();
-
-        //float l = edge->length();
-        float l = edgeLengths[edge->id/2];
-
-        if (edge->isBoundary())
-        {
-            newSeamLength += l;
-        }
-        else
-        {
-            if (edge->isSeam())
-            {
-                uint neighborFaceId = edge->pair->face->id;
-                if (faceChartArray[neighborFaceId] != chart->id) {
-                    newSeamLength += l;
-                }
-                else {
-                    oldSeamLength += l;
-                }
-            }
-        }
-
-        totalLength += l;
-    }
-
-    return (newSeamLength - oldSeamLength) / totalLength;
-}
-
-
-float AtlasBuilder::evaluateChartArea(ChartBuildData * chart, uint f)
-{
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    //return chart->area + face->area();
-    return chart->area + faceAreas[face->id];
-}
-
-
-float AtlasBuilder::evaluateBoundaryLength(ChartBuildData * chart, uint f)
-{
-    float boundaryLength = chart->boundaryLength;
-
-    // Add new edges, subtract edges shared with the chart.
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Edge * edge = it.current();
-        //float edgeLength = edge->length();
-        float edgeLength = edgeLengths[edge->id/2];
-
-        if (edge->isBoundary())
-        {
-            boundaryLength += edgeLength;
-        }
-        else
-        {
-            uint neighborFaceId = edge->pair->face->id;
-            if (faceChartArray[neighborFaceId] != chart->id) {
-                boundaryLength += edgeLength;
-            }
-            else {
-                boundaryLength -= edgeLength;
-            }
-        }
-    }
-    //nvDebugCheck(boundaryLength >= 0);
-
-    return max(0.0f, boundaryLength);  // @@ Hack!
-}
-
-Vector3 AtlasBuilder::evaluateChartNormalSum(ChartBuildData * chart, uint f)
-{
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    return chart->normalSum + triangleNormalAreaScaled(face);
-}
-
-Vector3 AtlasBuilder::evaluateChartCentroidSum(ChartBuildData * chart, uint f)
-{
-    const HalfEdge::Face * face = mesh->faceAt(f);
-    return chart->centroidSum + face->centroid();
-}
-
-
-Vector3 AtlasBuilder::computeChartCentroid(const ChartBuildData * chart)
-{
-    Vector3 centroid(0);
-
-    const uint faceCount = chart->faces.count();
-    for (uint i = 0; i < faceCount; i++)
-    {
-        const HalfEdge::Face * face = mesh->faceAt(chart->faces[i]);
-        centroid += triangleCenter(face);
-    }
-
-    return centroid / float(faceCount);
-}
-
-
-void AtlasBuilder::fillHoles(float threshold)
-{
-    while (facesLeft > 0)
-    {
-        createRandomChart(threshold);
-    }
-}
-
-
-void AtlasBuilder::mergeChart(ChartBuildData * owner, ChartBuildData * chart, float sharedBoundaryLength)
-{
-    const uint faceCount = chart->faces.count();
-    for (uint i = 0; i < faceCount; i++)
-    {
-        uint f = chart->faces[i];
-        
-        nvDebugCheck(faceChartArray[f] == chart->id);
-        faceChartArray[f] = owner->id;
-
-        owner->faces.append(f);
-    }
-
-    // Update adjacencies?
-
-    owner->area += chart->area;
-    owner->boundaryLength += chart->boundaryLength - sharedBoundaryLength;
-
-    owner->normalSum += chart->normalSum;
-    owner->centroidSum += chart->centroidSum;
-
-    updateProxy(owner);
-}
-
-void AtlasBuilder::mergeCharts()
-{
-    Array<float> sharedBoundaryLengths;
-
-    const uint chartCount = chartArray.count();
-    for (int c = chartCount-1; c >= 0; c--)
-    {
-        sharedBoundaryLengths.clear();
-        sharedBoundaryLengths.resize(chartCount, 0.0f);
-
-        ChartBuildData * chart = chartArray[c];
-
-        float externalBoundary = 0.0f;
-
-        const uint faceCount = chart->faces.count();
-        for (uint i = 0; i < faceCount; i++)
-        {
-            uint f = chart->faces[i];
-            const HalfEdge::Face * face = mesh->faceAt(f);
-
-            for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-            {
-                const HalfEdge::Edge * edge = it.current();
-
-                //float l = edge->length();
-                float l = edgeLengths[edge->id/2];
-
-                if (edge->isBoundary()) {
-                    externalBoundary += l;
-                }
-                else {
-                    uint neighborFace = edge->pair->face->id;
-                    uint neighborChart = faceChartArray[neighborFace];
-
-                    if (neighborChart != c) {
-                        if ((edge->isSeam() && (isNormalSeam(edge) || isTextureSeam(edge))) || neighborChart == -2) {
-                            externalBoundary += l;
-                        }
-                        else {
-                            sharedBoundaryLengths[neighborChart] += l;
-                        }
-                    }
-                }
-            }
-        }
-
-        for (int cc = chartCount-1; cc >= 0; cc--)
-        {
-            if (cc == c) 
-                continue;
-
-            ChartBuildData * chart2 = chartArray[cc];
-            if (chart2 == NULL) 
-                continue;
-
-            if (sharedBoundaryLengths[cc] > 0.8 * max(0.0f, chart->boundaryLength - externalBoundary)) {
-
-                // Try to avoid degenerate configurations.
-                if (chart2->boundaryLength > sharedBoundaryLengths[cc])
-                {
-                    if (dot(chart2->planeNormal, chart->planeNormal) > -0.25) {
-                        mergeChart(chart2, chart, sharedBoundaryLengths[cc]);
-                        delete chart;
-                        chartArray[c] = NULL;
-                        break;
-                    }
-                }
-            }
-
-            if (sharedBoundaryLengths[cc] > 0.20 * max(0.0f, chart->boundaryLength - externalBoundary)) {
-
-                // Compare proxies.
-                if (dot(chart2->planeNormal, chart->planeNormal) > 0) {
-                    mergeChart(chart2, chart, sharedBoundaryLengths[cc]);
-                    delete chart;
-                    chartArray[c] = NULL;
-                    break;
-                }
-            }
-        }
-    }
-
-    // Remove deleted charts.
-    for (int c = 0; c < I32(chartArray.count()); /*do not increment if removed*/)
-    {
-        if (chartArray[c] == NULL) {
-            chartArray.removeAt(c);
-
-            // Update faceChartArray.
-            const uint faceCount = faceChartArray.count();
-            for (uint i = 0; i < faceCount; i++) {
-                nvDebugCheck (faceChartArray[i] != -1);
-                nvDebugCheck (faceChartArray[i] != c);
-                nvDebugCheck (faceChartArray[i] <= I32(chartArray.count()));
-
-                if (faceChartArray[i] > c) {
-                    faceChartArray[i]--;
-                }
-            }
-        }
-        else {
-            chartArray[c]->id = c;
-            c++;
-        }
-    }
-}
-
-
-
-const Array<uint> & AtlasBuilder::chartFaces(uint i) const
-{
-    return chartArray[i]->faces;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/param/AtlasBuilder.h b/thirdparty/thekla_atlas/nvmesh/param/AtlasBuilder.h
deleted file mode 100644
index f25c724f7e..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/AtlasBuilder.h
+++ /dev/null
@@ -1,111 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_MESH_ATLASBUILDER_H
-#define NV_MESH_ATLASBUILDER_H
-
-#include "Atlas.h"
-
-#include "nvmath/Vector.h"
-#include "nvmath/Random.h"
-#include "nvmesh/nvmesh.h"
-
-#include "nvcore/Array.h"
-#include "nvcore/BitArray.h"
-
-
-
-namespace nv
-{
-    namespace HalfEdge { class Mesh; }
-
-    struct ChartBuildData;
-
-    struct AtlasBuilder
-    {
-        AtlasBuilder(const HalfEdge::Mesh * m);
-        ~AtlasBuilder();
-
-        void markUnchartedFaces(const Array<uint> & unchartedFaces);
-
-        void computeShortestPaths();
-
-        void placeSeeds(float threshold, uint maxSeedCount);
-        void createRandomChart(float threshold);
-
-        void addFaceToChart(ChartBuildData * chart, uint f, bool recomputeProxy=false);
-
-        bool growCharts(float threshold, uint faceCount);
-        bool growChart(ChartBuildData * chart, float threshold, uint faceCount);
-
-        void resetCharts();
-
-        void updateCandidates(ChartBuildData * chart, uint face);
-
-        void updateProxies();
-        void updateProxy(ChartBuildData * chart);
-
-        bool relocateSeeds();
-        bool relocateSeed(ChartBuildData * chart);
-
-        void updatePriorities(ChartBuildData * chart);
-
-        float evaluatePriority(ChartBuildData * chart, uint face);
-        float evaluateProxyFitMetric(ChartBuildData * chart, uint face);
-        float evaluateDistanceToBoundary(ChartBuildData * chart, uint face);
-        float evaluateDistanceToSeed(ChartBuildData * chart, uint face);
-        float evaluateRoundnessMetric(ChartBuildData * chart, uint face, float newBoundaryLength, float newChartArea);
-        float evaluateStraightnessMetric(ChartBuildData * chart, uint face);
-
-        float evaluateNormalSeamMetric(ChartBuildData * chart, uint f);
-        float evaluateTextureSeamMetric(ChartBuildData * chart, uint f);
-        float evaluateSeamMetric(ChartBuildData * chart, uint f);
-
-        float evaluateChartArea(ChartBuildData * chart, uint f);
-        float evaluateBoundaryLength(ChartBuildData * chart, uint f);
-        Vector3 evaluateChartNormalSum(ChartBuildData * chart, uint f);
-        Vector3 evaluateChartCentroidSum(ChartBuildData * chart, uint f);
-
-        Vector3 computeChartCentroid(const ChartBuildData * chart);
-
-
-        void fillHoles(float threshold);
-        void mergeCharts();
-
-        // @@ Cleanup.
-        struct Candidate {
-            uint face;
-            ChartBuildData * chart;
-            float metric;
-        };
-
-        const Candidate & getBestCandidate() const;
-        void removeCandidate(uint f);
-        void updateCandidate(ChartBuildData * chart, uint f, float metric);
-
-        void mergeChart(ChartBuildData * owner, ChartBuildData * chart, float sharedBoundaryLength);
-
-
-        uint chartCount() const { return chartArray.count(); }
-        const Array<uint> & chartFaces(uint i) const;
-
-        const HalfEdge::Mesh * mesh;
-        uint facesLeft;
-        Array<int> faceChartArray;
-        Array<ChartBuildData *> chartArray;
-        Array<float> shortestPaths;
-
-        Array<float> edgeLengths;
-        Array<float> faceAreas;
-
-        Array<Candidate> candidateArray; //
-        Array<uint> faceCandidateArray; // Map face index to candidate index.
-
-        MTRand rand;
-
-        SegmentationSettings settings;
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_ATLASBUILDER_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp b/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp
deleted file mode 100644
index 11e635db17..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.cpp
+++ /dev/null
@@ -1,1401 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh.h" // pch
-
-#include "AtlasPacker.h"
-#include "nvmesh/halfedge/Vertex.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/param/Atlas.h"
-#include "nvmesh/param/Util.h"
-#include "nvmesh/raster/Raster.h"
-
-#include "nvmath/Vector.inl"
-#include "nvmath/ConvexHull.h"
-#include "nvmath/Color.h"
-#include "nvmath/ftoi.h"
-
-#include "nvcore/StrLib.h" // debug
-#include "nvcore/StdStream.h" // fileOpen
-
-#include <float.h> // FLT_MAX
-#include <limits.h> // UINT_MAX
-
-using namespace nv;
-
-#define DEBUG_OUTPUT 0
-
-#if DEBUG_OUTPUT
-
-#include "nvimage/ImageIO.h"
-
-namespace
-{
-    const uint TGA_TYPE_GREY = 3;
-    const uint TGA_TYPE_RGB = 2;
-    const uint TGA_ORIGIN_UPPER = 0x20;
-
-#pragma pack(push, 1)
-    struct TgaHeader {
-	    uint8	id_length;
-	    uint8	colormap_type;
-	    uint8	image_type;
-	    uint16	colormap_index;
-	    uint16	colormap_length;
-	    uint8	colormap_size;
-	    uint16	x_origin;
-	    uint16	y_origin;
-	    uint16	width;
-	    uint16	height;
-	    uint8	pixel_size;
-	    uint8	flags;
-
-	    enum { Size = 18 };		//const static int SIZE = 18;
-    };
-#pragma pack(pop)
-
-    static void outputDebugBitmap(const char * fileName, const BitMap & bitmap, int w, int h)
-    {
-        FILE * fp = fileOpen(fileName, "wb");
-        if (fp == NULL) return;
-        
-        nvStaticCheck(sizeof(TgaHeader) == TgaHeader::Size);
-	    TgaHeader tga;
-	    tga.id_length = 0;
-	    tga.colormap_type = 0;
-	    tga.image_type = TGA_TYPE_GREY;
-
-	    tga.colormap_index = 0;
-	    tga.colormap_length = 0;
-	    tga.colormap_size = 0;
-
-	    tga.x_origin = 0;
-	    tga.y_origin = 0;
-        tga.width = w;
-        tga.height = h;
-	    tga.pixel_size = 8;
-	    tga.flags = TGA_ORIGIN_UPPER;
-
-        fwrite(&tga, sizeof(TgaHeader), 1, fp);
-
-		for (int j = 0; j < h; j++) {
-            for (int i = 0; i < w; i++) {
-                uint8 color = bitmap.bitAt(i, j) ? 0xFF : 0x0;
-                fwrite(&color, 1, 1, fp);
-            }
-		}
-
-        fclose(fp);
-    }
-
-    static void outputDebugImage(const char * fileName, const Image & bitmap, int w, int h)
-    {
-        FILE * fp = fileOpen(fileName, "wb");
-        if (fp == NULL) return;
-        
-        nvStaticCheck(sizeof(TgaHeader) == TgaHeader::Size);
-	    TgaHeader tga;
-	    tga.id_length = 0;
-	    tga.colormap_type = 0;
-        tga.image_type = TGA_TYPE_RGB;
-
-	    tga.colormap_index = 0;
-	    tga.colormap_length = 0;
-	    tga.colormap_size = 0;
-
-	    tga.x_origin = 0;
-	    tga.y_origin = 0;
-        tga.width = w;
-        tga.height = h;
-	    tga.pixel_size = 24;
-	    tga.flags = TGA_ORIGIN_UPPER;
-
-        fwrite(&tga, sizeof(TgaHeader), 1, fp);
-
-		for (int j = 0; j < h; j++) {
-            for (int i = 0; i < w; i++) {
-                Color32 color = bitmap.pixel(i, j);
-                fwrite(&color.r, 1, 1, fp);
-                fwrite(&color.g, 1, 1, fp);
-                fwrite(&color.b, 1, 1, fp);
-            }
-		}
-
-        fclose(fp);
-    }
-}
-
-#endif // DEBUG_OUTPUT
-
-inline int align(int x, int a) {
-    //return a * ((x + a - 1) / a);
-    //return (x + a - 1) & -a;
-    return (x + a - 1) & ~(a - 1);
-}
-
-inline bool isAligned(int x, int a) {
-    return (x & (a - 1)) == 0;
-}
-
-
-
-AtlasPacker::AtlasPacker(Atlas * atlas) : m_atlas(atlas), m_bitmap(256, 256)
-{
-    m_width = 0;
-    m_height = 0;
-
-    // -- GODOT start --
-    //m_debug_bitmap.allocate(256, 256);
-    //m_debug_bitmap.fill(Color32(0,0,0,0));
-    // -- GODOT end --
-}
-
-AtlasPacker::~AtlasPacker()
-{
-}
-
-// This should compute convex hull and use rotating calipers to find the best box. Currently it uses a brute force method.
-static bool computeBoundingBox(Chart * chart, Vector2 * majorAxis, Vector2 * minorAxis, Vector2 * minCorner, Vector2 * maxCorner)
-{
-    // Compute list of boundary points.
-    Array<Vector2> points(16);
-
-    HalfEdge::Mesh * mesh = chart->chartMesh();
-    const uint vertexCount = mesh->vertexCount();
-
-    for (uint i = 0; i < vertexCount; i++) {
-        HalfEdge::Vertex * vertex = mesh->vertexAt(i);
-        if (vertex->isBoundary()) {
-            points.append(vertex->tex);
-        }
-    }
-
-    // This is not valid anymore. The chart mesh may have multiple boundaries!
-    /*const HalfEdge::Vertex * vertex = findBoundaryVertex(chart->chartMesh());
-
-    // Traverse boundary.
-    const HalfEdge::Edge * const firstEdge = vertex->edge();
-    const HalfEdge::Edge * edge = firstEdge;
-    do {
-        vertex = edge->vertex();
-
-        nvDebugCheck (vertex->isBoundary());
-        points.append(vertex->tex);
-
-        edge = edge->next();
-    } while (edge != firstEdge);*/
-
-#if 1
-    Array<Vector2> hull;
-    if (points.size()==0) {
-        return false;    
-    }
-    
-    convexHull(points, hull, 0.00001f);
-
-    // @@ Ideally I should use rotating calipers to find the best box. Using brute force for now.
-
-    float best_area = FLT_MAX;
-    Vector2 best_min;
-    Vector2 best_max;
-    Vector2 best_axis;
-
-    const uint hullCount = hull.count();
-    for (uint i = 0, j = hullCount-1; i < hullCount; j = i, i++) {
-
-        if (equal(hull[i], hull[j])) {
-            continue;
-        }
-
-        Vector2 axis = normalize(hull[i] - hull[j], 0.0f);
-        nvDebugCheck(isFinite(axis));
-
-        // Compute bounding box.
-        Vector2 box_min(FLT_MAX, FLT_MAX);
-        Vector2 box_max(-FLT_MAX, -FLT_MAX);
-
-        for (uint v = 0; v < hullCount; v++) {
-
-           Vector2 point = hull[v];
-
-           float x = dot(axis, point);
-           if (x < box_min.x) box_min.x = x;
-           if (x > box_max.x) box_max.x = x;
-
-           float y = dot(Vector2(-axis.y, axis.x), point);
-           if (y < box_min.y) box_min.y = y;
-           if (y > box_max.y) box_max.y = y;
-        }
-    
-        // Compute box area.
-        float area = (box_max.x - box_min.x) * (box_max.y - box_min.y);
-
-        if (area < best_area) {
-            best_area = area;
-            best_min = box_min;
-            best_max = box_max;
-            best_axis = axis;
-        }
-    }
-
-    // Make sure the box contains all the input points since the convex hull is not 100% accurate.
-    /*const uint pointCount = points.count();
-    for (uint v = 0; v < pointCount; v++) {
-
-        Vector2 point = points[v];
-
-        float x = dot(best_axis, point);
-        if (x < best_min.x) best_min.x = x;
-
-        float y = dot(Vector2(-best_axis.y, best_axis.x), point);
-        if (y < best_min.y) best_min.y = y;
-    }*/
-
-    // Consider all points, not only boundary points, in case the input chart is malformed.
-    for (uint i = 0; i < vertexCount; i++) {
-        HalfEdge::Vertex * vertex = mesh->vertexAt(i);
-        Vector2 point = vertex->tex;
-
-        float x = dot(best_axis, point);
-        if (x < best_min.x) best_min.x = x;
-        if (x > best_max.x) best_max.x = x;
-
-        float y = dot(Vector2(-best_axis.y, best_axis.x), point);
-        if (y < best_min.y) best_min.y = y;
-        if (y > best_max.y) best_max.y = y;
-    }
-
-    *majorAxis = best_axis;
-    *minorAxis = Vector2(-best_axis.y, best_axis.x);
-    *minCorner = best_min;
-    *maxCorner = best_max;
-
-#else
-    // Approximate implementation: try 16 different directions and keep the best.
-
-    const uint N = 16;
-    Vector2 axis[N];
-
-    float minAngle = 0;
-    float maxAngle = PI / 2;
-
-    int best;
-    Vector2 mins[N];
-    Vector2 maxs[N];
-
-    const int iterationCount = 1;
-    for (int j = 0; j < iterationCount; j++)
-    {
-        // Init predefined directions.
-        for (int i = 0; i < N; i++)
-        {
-            float angle = lerp(minAngle, maxAngle, float(i)/N);
-            axis[i].set(cosf(angle), sinf(angle));
-        }
-
-        // Compute box for each direction.
-        for (int i = 0; i < N; i++)
-        {
-            mins[i].set(FLT_MAX, FLT_MAX);
-            maxs[i].set(-FLT_MAX, -FLT_MAX);
-        }
-
-        for (uint p = 0; p < points.count(); p++)
-        {
-            Vector2 point = points[p];
-
-            for (int i = 0; i < N; i++)
-            {
-               float x = dot(axis[i], point);
-               if (x < mins[i].x) mins[i].x = x;
-               if (x > maxs[i].x) maxs[i].x = x;
-
-               float y = dot(Vector2(-axis[i].y, axis[i].x), point);
-               if (y < mins[i].y) mins[i].y = y;
-               if (y > maxs[i].y) maxs[i].y = y;
-            }
-        }
-
-        // Find box with minimum area.
-        best = -1;
-        int second_best = -1;
-        float best_area = FLT_MAX;
-        float second_best_area = FLT_MAX;
-        
-        for (int i = 0; i < N; i++)
-        {
-            float area = (maxs[i].x - mins[i].x) * (maxs[i].y - mins[i].y);
-
-            if (area < best_area)
-            {
-                second_best_area = best_area;
-                second_best = best;
-
-                best_area = area;
-                best = i;
-            }
-            else if (area < second_best_area)
-            {
-                second_best_area = area;
-                second_best = i;
-            }
-        }
-        nvDebugCheck(best != -1);
-        nvDebugCheck(second_best != -1);
-        nvDebugCheck(best != second_best);
-
-        if (j != iterationCount-1)
-        {
-            // Handle wrap-around during the first iteration.
-            if (j == 0) {
-                if (best == 0 && second_best == N-1) best = N;
-                if (best == N-1 && second_best == 0) second_best = N;
-            }
-
-            if (best < second_best) swap(best, second_best);
-
-            // Update angles.
-            float deltaAngle = (maxAngle - minAngle) / N;
-            maxAngle = minAngle + (best - 0.5f)  * deltaAngle;
-            minAngle = minAngle + (second_best + 0.5f) * deltaAngle;
-        }
-    }
-
-    // Compute major and minor axis, and origin.
-    *majorAxis = axis[best];
-    *minorAxis = Vector2(-axis[best].y, axis[best].x);
-    *origin = mins[best];
-
-    // @@ If the parameterization is invalid, we could have an interior vertex outside the boundary.
-    // @@ In that case the returned bounding box would be incorrect. Compute updated bounds here.
-    /*for (uint p = 0; p < points.count(); p++)
-    {
-        Vector2 point = points[p];
-
-        for (int i = 0; i < N; i++)
-        {
-           float x = dot(*majorAxis, point);
-           float y = dot(*minorAxis, point);
-        }
-    }*/
-#endif
-
-    return true;
-}
-
-
-void AtlasPacker::packCharts(int quality, float texelsPerUnit, bool blockAligned, bool conservative)
-{
-    const uint chartCount = m_atlas->chartCount();
-    if (chartCount == 0) return;
-
-    Array<float> chartOrderArray;
-    chartOrderArray.resize(chartCount);
-
-    Array<Vector2> chartExtents;
-    chartExtents.resize(chartCount);
-    
-    float meshArea = 0;
-    for (uint c = 0; c < chartCount; c++)
-    {
-        Chart * chart = m_atlas->chartAt(c);
-        
-        if (!chart->isVertexMapped() && !chart->isDisk()) {
-            chartOrderArray[c] = 0;
-
-            // Skip non-disks.
-            continue;
-        }
-
-        Vector2 extents(0.0f);
-
-        if (chart->isVertexMapped()) {
-            // Let's assume vertex maps are arranged in a rectangle.
-            //HalfEdge::Mesh * mesh = chart->chartMesh();
-
-            // Arrange vertices in a rectangle.
-            extents.x = float(chart->vertexMapWidth);
-            extents.y = float(chart->vertexMapHeight);
-        }
-        else {
-            // Compute surface area to sort charts.
-            float chartArea = chart->computeSurfaceArea();
-            meshArea += chartArea;
-            //chartOrderArray[c] = chartArea;
-
-            // Compute chart scale
-            float parametricArea = fabs(chart->computeParametricArea());    // @@ There doesn't seem to be anything preventing parametric area to be negative.
-            if (parametricArea < NV_EPSILON) {
-                // When the parametric area is too small we use a rough approximation to prevent divisions by very small numbers.
-                Vector2 bounds = chart->computeParametricBounds();
-                parametricArea = bounds.x * bounds.y;
-            }
-            float scale = (chartArea / parametricArea) * texelsPerUnit;
-            if (parametricArea == 0) // < NV_EPSILON)
-            {
-                scale = 0;
-            }
-            nvCheck(isFinite(scale));
-
-            // Compute bounding box of chart.
-            Vector2 majorAxis, minorAxis, origin, end;
-            if (!computeBoundingBox(chart, &majorAxis, &minorAxis, &origin, &end)) {
-                m_atlas->setFailed();
-                return;
-            }
-
-            nvCheck(isFinite(majorAxis) && isFinite(minorAxis) && isFinite(origin));
-            
-            // Sort charts by perimeter. @@ This is sometimes producing somewhat unexpected results. Is this right?
-            //chartOrderArray[c] = ((end.x - origin.x) + (end.y - origin.y)) * scale;
-
-            // Translate, rotate and scale vertices. Compute extents.
-            HalfEdge::Mesh * mesh = chart->chartMesh();
-            const uint vertexCount = mesh->vertexCount();
-            for (uint i = 0; i < vertexCount; i++)
-            {
-                HalfEdge::Vertex * vertex = mesh->vertexAt(i);
-
-                //Vector2 t = vertex->tex - origin;
-                Vector2 tmp;
-                tmp.x = dot(vertex->tex, majorAxis);
-                tmp.y = dot(vertex->tex, minorAxis);
-                tmp -= origin;
-                tmp *= scale;
-                if (tmp.x < 0 || tmp.y < 0) {
-                    nvDebug("tmp: %f %f\n", tmp.x, tmp.y);
-                    nvDebug("scale: %f\n", scale);
-                    nvDebug("origin: %f %f\n", origin.x, origin.y);
-                    nvDebug("majorAxis: %f %f\n", majorAxis.x, majorAxis.y);
-                    nvDebug("minorAxis: %f %f\n", minorAxis.x, minorAxis.y);
-                    // -- GODOT start --
-                    //nvDebugBreak();
-                    m_atlas->setFailed();
-                    return;
-                    // -- GODOT end --
-                }
-                //nvCheck(tmp.x >= 0 && tmp.y >= 0);
-
-                vertex->tex = tmp;
-
-				nvCheck(isFinite(vertex->tex.x) && isFinite(vertex->tex.y));
-
-                extents = max(extents, tmp);
-            }
-            nvDebugCheck(extents.x >= 0 && extents.y >= 0);
-
-            // Limit chart size.
-            if (extents.x > 1024 || extents.y > 1024) {
-                float limit = max(extents.x, extents.y);
-
-                scale = 1024 / (limit + 1);
-
-                for (uint i = 0; i < vertexCount; i++)
-                {
-                    HalfEdge::Vertex * vertex = mesh->vertexAt(i);
-                    vertex->tex *= scale;
-                }
-
-                extents *= scale;
-
-                nvDebugCheck(extents.x <= 1024 && extents.y <= 1024);
-            }
-
-
-            // Scale the charts to use the entire texel area available. So, if the width is 0.1 we could scale it to 1 without increasing the lightmap usage and making a better 
-            // use of it. In many cases this also improves the look of the seams, since vertices on the chart boundaries have more chances of being aligned with the texel centers.
-
-            float scale_x = 1.0f;
-            float scale_y = 1.0f;
-
-            float divide_x = 1.0f;
-            float divide_y = 1.0f;
-
-            if (extents.x > 0) {
-                int cw = ftoi_ceil(extents.x);
-
-                if (blockAligned) {
-                    // Align all chart extents to 4x4 blocks, but taking padding into account.
-                    if (conservative) {
-                        cw = align(cw + 2, 4) - 2;
-                    }
-                    else {
-                        cw = align(cw + 1, 4) - 1;
-                    }
-                }
-
-                scale_x = (float(cw) - NV_EPSILON);
-                divide_x = extents.x;
-                extents.x = float(cw);
-            }
-
-            if (extents.y > 0) {
-                int ch = ftoi_ceil(extents.y);
-
-                if (blockAligned) {
-                    // Align all chart extents to 4x4 blocks, but taking padding into account.
-                    if (conservative) {
-                        ch = align(ch + 2, 4) - 2;
-                    }
-                    else {
-                        ch = align(ch + 1, 4) - 1;
-                    }
-                }
-
-                scale_y = (float(ch) - NV_EPSILON);
-                divide_y = extents.y;
-                extents.y = float(ch);
-            }
-
-            for (uint v = 0; v < vertexCount; v++) {
-                HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-
-                vertex->tex.x /= divide_x;
-                vertex->tex.y /= divide_y;
-                vertex->tex.x *= scale_x;
-                vertex->tex.y *= scale_y;
-
-				nvCheck(isFinite(vertex->tex.x) && isFinite(vertex->tex.y));
-            }
-        }
-
-        chartExtents[c] = extents;
-
-        // Sort charts by perimeter.
-        chartOrderArray[c] = extents.x + extents.y;
-    }
-
-    // @@ We can try to improve compression of small charts by sorting them by proximity like we do with vertex samples.
-    // @@ How to do that? One idea: compute chart centroid, insert into grid, compute morton index of the cell, sort based on morton index.
-    // @@ We would sort by morton index, first, then quantize the chart sizes, so that all small charts have the same size, and sort by size preserving the morton order.
-
-    //nvDebug("Sorting charts.\n");
-
-    // Sort charts by area.
-    m_radix.sort(chartOrderArray);
-    const uint32 * ranks = m_radix.ranks();
-
-    // Estimate size of the map based on the mesh surface area and given texel scale.
-    float texelCount = meshArea * square(texelsPerUnit) / 0.75f; // Assume 75% utilization.
-    if (texelCount < 1) texelCount = 1;
-    uint approximateExtent = nextPowerOfTwo(uint(sqrtf(texelCount)));
-
-    //nvDebug("Init bitmap.\n");
-
-    // @@ Pack all charts smaller than a texel into a compact rectangle.
-    // @@ Start considering only 1x1 charts. Extend to 1xn charts later.
-
-    /*for (uint i = 0; i < chartCount; i++)
-    {
-        uint c = ranks[chartCount - i - 1]; // largest chart first
-
-        Chart * chart = m_atlas->chartAt(c);
-
-        if (!chart->isDisk()) continue;
-
-        if (iceil(chartExtents[c].x) == 1 && iceil(chartExtents[c].x) == 1) {
-            // @@ Add to 
-        }
-    }*/
-
-
-
-    // Init bit map.
-    m_bitmap.clearAll();
-    if (approximateExtent > m_bitmap.width()) {
-        m_bitmap.resize(approximateExtent, approximateExtent, false);
-        // -- GODOT start --
-        //m_debug_bitmap.resize(approximateExtent, approximateExtent);
-        //m_debug_bitmap.fill(Color32(0,0,0,0));
-        // -- GODOT end --
-    }
-
-    
-    int w = 0;
-    int h = 0;
-
-#if 1
-    // Add sorted charts to bitmap.
-    for (uint i = 0; i < chartCount; i++)
-    {
-        uint c = ranks[chartCount - i - 1]; // largest chart first
-
-        Chart * chart = m_atlas->chartAt(c);
-
-        if (!chart->isVertexMapped() && !chart->isDisk()) continue;
-
-        //float scale_x = 1;
-        //float scale_y = 1;
-
-        BitMap chart_bitmap;
-
-        if (chart->isVertexMapped()) {
-            // Init all bits to 1.
-            chart_bitmap.resize(ftoi_ceil(chartExtents[c].x), ftoi_ceil(chartExtents[c].y), /*initValue=*/true);
-
-            // @@ Another alternative would be to try to map each vertex to a different texel trying to fill all the available unused texels.
-        }
-        else {
-            // @@ Add special cases for dot and line charts. @@ Lightmap rasterizer also needs to handle these special cases.
-            // @@ We could also have a special case for chart quads. If the quad surface <= 4 texels, align vertices with texel centers and do not add padding. May be very useful for foliage.
-
-            // @@ In general we could reduce the padding of all charts by one texel by using a rasterizer that takes into account the 2-texel footprint of the tent bilinear filter. For example,
-            // if we have a chart that is less than 1 texel wide currently we add one texel to the left and one texel to the right creating a 3-texel-wide bitmap. However, if we know that the 
-            // chart is only 1 texel wide we could align it so that it only touches the footprint of two texels:
-
-            //      |   |      <- Touches texels 0, 1 and 2.
-            //    |   |        <- Only touches texels 0 and 1.
-            // \   \ / \ /   /
-            //  \   X   X   /
-            //   \ / \ / \ /
-            //    V   V   V
-            //    0   1   2
-
-            if (conservative) {
-                // Init all bits to 0.
-                chart_bitmap.resize(ftoi_ceil(chartExtents[c].x) + 2, ftoi_ceil(chartExtents[c].y) + 2, /*initValue=*/false);  // + 2 to add padding on both sides.
-
-                // Rasterize chart and dilate.
-                drawChartBitmapDilate(chart, &chart_bitmap, /*padding=*/1);
-            }
-            else {
-                // Init all bits to 0.
-                chart_bitmap.resize(ftoi_ceil(chartExtents[c].x) + 1, ftoi_ceil(chartExtents[c].y) + 1, /*initValue=*/false);  // Add half a texels on each side.
-
-                // Rasterize chart and dilate.
-                drawChartBitmap(chart, &chart_bitmap, Vector2(1), Vector2(0.5));
-            }
-        }
-
-        int best_x, best_y;
-        int best_cw, best_ch;   // Includes padding now.
-        int best_r;
-        findChartLocation(quality, &chart_bitmap, chartExtents[c], w, h, &best_x, &best_y, &best_cw, &best_ch, &best_r);
-        
-        /*if (w < best_x + best_cw || h < best_y + best_ch)
-        {
-            nvDebug("Resize extents to (%d, %d).\n", best_x + best_cw, best_y + best_ch);
-        }*/
-
-        // Update parametric extents.
-        w = max(w, best_x + best_cw);
-        h = max(h, best_y + best_ch);
-        
-        w = align(w, 4);
-        h = align(h, 4);
-
-        // Resize bitmap if necessary.
-        if (uint(w) > m_bitmap.width() || uint(h) > m_bitmap.height())
-        {
-            //nvDebug("Resize bitmap (%d, %d).\n", nextPowerOfTwo(w), nextPowerOfTwo(h));
-            m_bitmap.resize(nextPowerOfTwo(U32(w)), nextPowerOfTwo(U32(h)), false);
-            // -- GODOT start --
-            //m_debug_bitmap.resize(nextPowerOfTwo(U32(w)), nextPowerOfTwo(U32(h)));
-            // -- GODOT end --
-        }
-
-        //nvDebug("Add chart at (%d, %d).\n", best_x, best_y);
-
-        addChart(&chart_bitmap, w, h, best_x, best_y, best_r, /*debugOutput=*/NULL);
-
-        // -- GODOT start --
-        // IC: Output chart again to debug bitmap.
-        /*if (chart->isVertexMapped()) {
-            addChart(&chart_bitmap, w, h, best_x, best_y, best_r, &m_debug_bitmap);
-        }
-        else {
-            addChart(chart, w, h, best_x, best_y, best_r, &m_debug_bitmap);
-        }*/
-        // -- GODOT end --
-
-        //float best_angle = 2 * PI * best_r;
-
-        // Translate and rotate chart texture coordinates.
-        HalfEdge::Mesh * mesh = chart->chartMesh();
-        const uint vertexCount = mesh->vertexCount();
-        for (uint v = 0; v < vertexCount; v++)
-        {
-            HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-
-            Vector2 t = vertex->tex;
-            if (best_r) swap(t.x, t.y);
-            //vertex->tex.x = best_x + t.x * cosf(best_angle) - t.y * sinf(best_angle);
-            //vertex->tex.y = best_y + t.x * sinf(best_angle) + t.y * cosf(best_angle);
-
-            vertex->tex.x = best_x + t.x + 0.5f;
-            vertex->tex.y = best_y + t.y + 0.5f;
-
-            nvCheck(vertex->tex.x >= 0 && vertex->tex.y >= 0);
-			nvCheck(isFinite(vertex->tex.x) && isFinite(vertex->tex.y));
-        }
-
-#if DEBUG_OUTPUT && 0
-        StringBuilder fileName;
-        fileName.format("debug_packer_%d.tga", i);
-        //outputDebugBitmap(fileName.str(), m_bitmap, w, h);
-        outputDebugImage(fileName.str(), m_debug_bitmap, w, h);
-#endif
-    }
-
-#else // 0
-
-    // Add sorted charts to bitmap.
-    for (uint i = 0; i < chartCount; i++)
-    {
-        uint c = ranks[chartCount - i - 1]; // largest chart first
-
-        Chart * chart = m_atlas->chartAt(c);
-
-        if (!chart->isDisk()) continue;
-
-        Vector2 scale(1, 1);
-
-#if 0 // old method.
-        //m_padding_x = 2*padding;
-        //m_padding_y = 2*padding;
-#else
-        //m_padding_x = 0; //padding;
-        //m_padding_y = 0; //padding;
-#endif
-
-        int bw = ftoi_ceil(chartExtents[c].x + 1);
-        int bh = ftoi_ceil(chartExtents[c].y + 1);
-
-        if (chartExtents[c].x < 1.0f) {
-            scale.x = 0.01f; // @@ Ideally we would like to scale it to 0, but then our rasterizer would not touch any pixels.
-            bw = 1;
-        }
-        if (chartExtents[c].y < 1.0f) {
-            scale.y = 0.01f;
-            bh = 1;
-        }
-
-        //BitMap chart_bitmap(iceil(chartExtents[c].x) + 1 + m_padding_x * 2, iceil(chartExtents[c].y) + 1 + m_padding_y * 2);
-        //BitMap chart_bitmap(ftoi_ceil(chartExtents[c].x/2)*2, ftoi_ceil(chartExtents[c].y/2)*2);
-        BitMap chart_bitmap(bw, bh);
-        chart_bitmap.clearAll();
-        
-        Vector2 offset;
-        offset.x = 0; // (chart_bitmap.width() - chartExtents[c].x) * 0.5f;
-        offset.y = 0; // (chart_bitmap.height() - chartExtents[c].y) * 0.5f;
-
-        drawChartBitmap(chart, &chart_bitmap, scale, offset);
-
-        int best_x, best_y;
-        int best_cw, best_ch;
-        int best_r;
-        findChartLocation(quality, &chart_bitmap, chartExtents[c], w, h, &best_x, &best_y, &best_cw, &best_ch, &best_r);
-
-        /*if (w < best_x + best_cw || h < best_y + best_ch)
-        {
-            nvDebug("Resize extents to (%d, %d).\n", best_x + best_cw, best_y + best_ch);
-        }*/
-
-        // Update parametric extents.
-        w = max(w, best_x + best_cw);
-        h = max(h, best_y + best_ch);
-
-        // Resize bitmap if necessary.
-        if (uint(w) > m_bitmap.width() || uint(h) > m_bitmap.height())
-        {
-            //nvDebug("Resize bitmap (%d, %d).\n", nextPowerOfTwo(w), nextPowerOfTwo(h));
-            m_bitmap.resize(nextPowerOfTwo(w), nextPowerOfTwo(h), false);
-            m_debug_bitmap.resize(nextPowerOfTwo(w), nextPowerOfTwo(h));
-        }
-
-        //nvDebug("Add chart at (%d, %d).\n", best_x, best_y);
-
-#if 0 // old method.
-#if _DEBUG
-        checkCanAddChart(chart, w, h, best_x, best_y, best_r);
-#endif
-
-        // Add chart.
-        addChart(chart, w, h, best_x, best_y, best_r);
-#else
-        // Add chart reusing its bitmap.
-        addChart(&chart_bitmap, w, h, best_x, best_y, best_r);
-#endif
-
-        //float best_angle = 2 * PI * best_r;
-
-        // Translate and rotate chart texture coordinates.
-        HalfEdge::Mesh * mesh = chart->chartMesh();
-        const uint vertexCount = mesh->vertexCount();
-        for (uint v = 0; v < vertexCount; v++)
-        {
-            HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-
-            Vector2 t = vertex->tex * scale + offset;
-            if (best_r) swap(t.x, t.y);
-            //vertex->tex.x = best_x + t.x * cosf(best_angle) - t.y * sinf(best_angle);
-            //vertex->tex.y = best_y + t.x * sinf(best_angle) + t.y * cosf(best_angle);
-            vertex->tex.x = best_x + t.x + 0.5f;
-            vertex->tex.y = best_y + t.y + 0.5f;
-
-            nvCheck(vertex->tex.x >= 0 && vertex->tex.y >= 0);
-        }
-
-#if DEBUG_OUTPUT && 0
-        StringBuilder fileName;
-        fileName.format("debug_packer_%d.tga", i);
-        //outputDebugBitmap(fileName.str(), m_bitmap, w, h);
-        outputDebugImage(fileName.str(), m_debug_bitmap, w, h);
-#endif
-    }
-
-#endif // 0
-
-    //w -= padding - 1; // Leave one pixel border!
-    //h -= padding - 1;
-
-    m_width = max(0, w);
-    m_height = max(0, h);
-
-    nvCheck(isAligned(m_width, 4));
-    nvCheck(isAligned(m_height, 4));
-
-    // -- GODOT start --
-    //m_debug_bitmap.resize(m_width, m_height);
-    //m_debug_bitmap.setFormat(Image::Format_ARGB);
-    // -- GODOT end --
-
-#if DEBUG_OUTPUT
-    //outputDebugBitmap("debug_packer_final.tga", m_bitmap, w, h);
-    //outputDebugImage("debug_packer_final.tga", m_debug_bitmap, w, h);
-    ImageIO::save("debug_packer_final.tga", &m_debug_bitmap);
-#endif
-}
-
-
-// IC: Brute force is slow, and random may take too much time to converge. We start inserting large charts in a small atlas. Using brute force is lame, because most of the space 
-// is occupied at this point. At the end we have many small charts and a large atlas with sparse holes. Finding those holes randomly is slow. A better approach would be to 
-// start stacking large charts as if they were tetris pieces. Once charts get small try to place them randomly. It may be interesting to try a intermediate strategy, first try 
-// along one axis and then try exhaustively along that axis.
-void AtlasPacker::findChartLocation(int quality, const BitMap * bitmap, Vector2::Arg extents, int w, int h, int * best_x, int * best_y, int * best_w, int * best_h, int * best_r)
-{
-    int attempts = 256;
-    if (quality == 1) attempts = 4096;
-    if (quality == 2) attempts = 2048;
-    if (quality == 3) attempts = 1024;
-    if (quality == 4) attempts = 512;
-
-    if (quality == 0 || w*h < attempts)
-    {
-        findChartLocation_bruteForce(bitmap, extents, w, h, best_x, best_y, best_w, best_h, best_r);
-    }
-    else
-    {
-        findChartLocation_random(bitmap, extents, w, h, best_x, best_y, best_w, best_h, best_r, attempts);
-    }
-}
-
-#define BLOCK_SIZE 4
-
-void AtlasPacker::findChartLocation_bruteForce(const BitMap * bitmap, Vector2::Arg extents, int w, int h, int * best_x, int * best_y, int * best_w, int * best_h, int * best_r)
-{
-    int best_metric = INT_MAX;
-
-    // Try two different orientations.
-    for (int r = 0; r < 2; r++)
-    {
-        int cw = bitmap->width();
-        int ch = bitmap->height();
-        if (r & 1) swap(cw, ch);
-
-        for (int y = 0; y <= h + 1; y += BLOCK_SIZE) // + 1 to extend atlas in case atlas full.
-        {
-            for (int x = 0; x <= w + 1; x += BLOCK_SIZE) // + 1 not really necessary here.
-            {
-                // Early out.
-                int area = max(w, x+cw) * max(h, y+ch);
-                //int perimeter = max(w, x+cw) + max(h, y+ch);
-                int extents = max(max(w, x+cw), max(h, y+ch));
-
-                int metric = extents*extents + area;
-
-                if (metric > best_metric) {
-                    continue;
-                }
-                if (metric == best_metric && max(x, y) >= max(*best_x, *best_y)) {
-                    // If metric is the same, pick the one closest to the origin.
-                    continue;
-                }
-
-                if (canAddChart(bitmap, w, h, x, y, r))
-                {
-                    best_metric = metric;
-                    *best_x = x;
-                    *best_y = y;
-                    *best_w = cw;
-                    *best_h = ch;
-                    *best_r = r;
-
-                    if (area == w*h)
-                    {
-                        // Chart is completely inside, do not look at any other location.
-                        goto done;
-                    }
-                }
-            }
-        }
-    }
-
-done:
-    nvDebugCheck (best_metric != INT_MAX);
-}
-
-
-void AtlasPacker::findChartLocation_random(const BitMap * bitmap, Vector2::Arg extents, int w, int h, int * best_x, int * best_y, int * best_w, int * best_h, int * best_r, int minTrialCount)
-{
-    int best_metric = INT_MAX;
-
-    for (int i = 0; i < minTrialCount || best_metric == INT_MAX; i++)
-    {
-        int r = m_rand.getRange(1);
-        int x = m_rand.getRange(w + 1); // + 1 to extend atlas in case atlas full. We may want to use a higher number to increase probability of extending atlas.
-        int y = m_rand.getRange(h + 1); // + 1 to extend atlas in case atlas full.
-
-        x = align(x, BLOCK_SIZE);
-        y = align(y, BLOCK_SIZE);
-
-        int cw = bitmap->width();
-        int ch = bitmap->height();
-        if (r & 1) swap(cw, ch);
-
-        // Early out.
-        int area = max(w, x+cw) * max(h, y+ch);
-        //int perimeter = max(w, x+cw) + max(h, y+ch);
-        int extents = max(max(w, x+cw), max(h, y+ch));
-
-        int metric = extents*extents + area;
-
-        if (metric > best_metric) {
-            continue;
-        }
-        if (metric == best_metric && min(x, y) > min(*best_x, *best_y)) {
-            // If metric is the same, pick the one closest to the origin.
-            continue;
-        }
-
-        if (canAddChart(bitmap, w, h, x, y, r))
-        {
-            best_metric = metric;
-            *best_x = x;
-            *best_y = y;
-            *best_w = cw;
-            *best_h = ch;
-            *best_r = r;
-
-            if (area == w*h)
-            {
-                // Chart is completely inside, do not look at any other location.
-                break;
-            }
-        }
-    }
-}
-
-
-void AtlasPacker::drawChartBitmapDilate(const Chart * chart, BitMap * bitmap, int padding)
-{
-    const int w = bitmap->width();
-    const int h = bitmap->height();
-    const Vector2 extents = Vector2(float(w), float(h));
-    
-    // Rasterize chart faces, check that all bits are not set.
-    const uint faceCount = chart->faceCount();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = chart->chartMesh()->faceAt(f);
-        
-        Vector2 vertices[4];
-
-        uint edgeCount = 0;
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            if (edgeCount < 4)
-            {
-                vertices[edgeCount] = it.vertex()->tex + Vector2(0.5) + Vector2(float(padding), float(padding));
-            }
-            edgeCount++;
-        }
-
-        if (edgeCount == 3)
-        {
-            Raster::drawTriangle(Raster::Mode_Antialiased, extents, true, vertices, AtlasPacker::setBitsCallback, bitmap);
-        }
-        else
-        {
-            Raster::drawQuad(Raster::Mode_Antialiased, extents, true, vertices, AtlasPacker::setBitsCallback, bitmap);
-        }
-    }
-
-    // Expand chart by padding pixels. (dilation)
-    BitMap tmp(w, h);
-    for (int i = 0; i < padding; i++) {
-        tmp.clearAll();
-
-        for (int y = 0; y < h; y++) {
-            for (int x = 0; x < w; x++) {
-                bool b = bitmap->bitAt(x, y);
-                if (!b) {
-                    if (x > 0) {
-                        b |= bitmap->bitAt(x - 1, y);
-                        if (y > 0) b |= bitmap->bitAt(x - 1, y - 1);
-                        if (y < h-1) b |= bitmap->bitAt(x - 1, y + 1);
-                    }
-                    if (y > 0) b |= bitmap->bitAt(x, y - 1);
-                    if (y < h-1) b |= bitmap->bitAt(x, y + 1);
-                    if (x < w-1) {
-                        b |= bitmap->bitAt(x + 1, y);
-                        if (y > 0) b |= bitmap->bitAt(x + 1, y - 1);
-                        if (y < h-1) b |= bitmap->bitAt(x + 1, y + 1);
-                    }
-                }
-                if (b) tmp.setBitAt(x, y);
-            }
-        }
-
-        swap(tmp, *bitmap);
-    }
-}
-
-
-void AtlasPacker::drawChartBitmap(const Chart * chart, BitMap * bitmap, const Vector2 & scale, const Vector2 & offset)
-{
-    const int w = bitmap->width();
-    const int h = bitmap->height();
-    const Vector2 extents = Vector2(float(w), float(h));
-    
-    static const Vector2 pad[4] = {
-        Vector2(-0.5, -0.5),
-        Vector2(0.5, -0.5),
-        Vector2(-0.5, 0.5),
-        Vector2(0.5, 0.5)
-    };
-    /*static const Vector2 pad[4] = {
-        Vector2(-1, -1),
-        Vector2(1, -1),
-        Vector2(-1, 1),
-        Vector2(1, 1)
-    };*/
-
-    // Rasterize 4 times to add proper padding.
-    for (int i = 0; i < 4; i++) {
-
-        // Rasterize chart faces, check that all bits are not set.
-        const uint faceCount = chart->chartMesh()->faceCount();
-        for (uint f = 0; f < faceCount; f++)
-        {
-            const HalfEdge::Face * face = chart->chartMesh()->faceAt(f);
-            
-            Vector2 vertices[4];
-
-            uint edgeCount = 0;
-            for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-            {
-                if (edgeCount < 4)
-                {
-                    vertices[edgeCount] = it.vertex()->tex * scale + offset + pad[i];
-                    nvCheck(ftoi_ceil(vertices[edgeCount].x) >= 0);
-                    nvCheck(ftoi_ceil(vertices[edgeCount].y) >= 0);
-                    nvCheck(ftoi_ceil(vertices[edgeCount].x) <= w);
-                    nvCheck(ftoi_ceil(vertices[edgeCount].y) <= h);
-                }
-                edgeCount++;
-            }
-
-            if (edgeCount == 3)
-            {
-                Raster::drawTriangle(Raster::Mode_Antialiased, extents, /*enableScissors=*/true, vertices, AtlasPacker::setBitsCallback, bitmap);
-            }
-            else
-            {
-                Raster::drawQuad(Raster::Mode_Antialiased, extents, /*enableScissors=*/true, vertices, AtlasPacker::setBitsCallback, bitmap);
-            }
-        }
-    }
-
-    // @@ This only allows us to expand the size in texel intervals.
-    /*if (m_padding_x != 0 && m_padding_y != 0)*/ {
-
-        // Expand chart by padding pixels. (dilation)
-        BitMap tmp(w, h);
-        //for (int i = 0; i < 1; i++) {
-            tmp.clearAll();
-
-            for (int y = 0; y < h; y++) {
-                for (int x = 0; x < w; x++) {
-                    bool b = bitmap->bitAt(x, y);
-                    if (!b) {
-                        if (x > 0) {
-                            b |= bitmap->bitAt(x - 1, y);
-                            if (y > 0) b |= bitmap->bitAt(x - 1, y - 1);
-                            if (y < h-1) b |= bitmap->bitAt(x - 1, y + 1);
-                        }
-                        if (y > 0) b |= bitmap->bitAt(x, y - 1);
-                        if (y < h-1) b |= bitmap->bitAt(x, y + 1);
-                        if (x < w-1) {
-                            b |= bitmap->bitAt(x + 1, y);
-                            if (y > 0) b |= bitmap->bitAt(x + 1, y - 1);
-                            if (y < h-1) b |= bitmap->bitAt(x + 1, y + 1);
-                        }
-                    }
-                    if (b) tmp.setBitAt(x, y);
-                }
-            }
-
-            swap(tmp, *bitmap);
-        //}
-    }
-}
-
-bool AtlasPacker::canAddChart(const BitMap * bitmap, int atlas_w, int atlas_h, int offset_x, int offset_y, int r)
-{
-    nvDebugCheck(r == 0 || r == 1);
-
-    // Check whether the two bitmaps overlap.
-
-    const int w = bitmap->width();
-    const int h = bitmap->height();
-    
-    if (r == 0) {
-        for (int y = 0; y < h; y++) {
-            int yy = y + offset_y;
-            if (yy >= 0) {
-                for (int x = 0; x < w; x++) {
-                    int xx = x + offset_x;
-                    if (xx >= 0) {
-                        if (bitmap->bitAt(x, y)) {
-                            if (xx < atlas_w && yy < atlas_h) {
-                                if (m_bitmap.bitAt(xx, yy)) return false;
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-    else if (r == 1) {
-        for (int y = 0; y < h; y++) {
-            int xx = y + offset_x;
-            if (xx >= 0) {
-                for (int x = 0; x < w; x++) {
-                    int yy = x + offset_y;
-                    if (yy >= 0) {
-                        if (bitmap->bitAt(x, y)) {
-                            if (xx < atlas_w && yy < atlas_h) {
-                                if (m_bitmap.bitAt(xx, yy)) return false;
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-    
-    return true;
-}
-
-#if 0
-void AtlasPacker::checkCanAddChart(const Chart * chart, int w, int h, int x, int y, int r)
-{
-    nvDebugCheck(r == 0 || r == 1);
-    Vector2 extents = Vector2(float(w), float(h));
-    Vector2 offset = Vector2(float(x), float(y));
-
-    // Rasterize chart faces, set bits.
-    const uint faceCount = chart->faceCount();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = chart->chartMesh()->faceAt(f);
-        
-        Vector2 vertices[4];
-
-        uint edgeCount = 0;
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            if (edgeCount < 4)
-            {
-                Vector2 t = it.vertex()->tex;
-                if (r == 1) swap(t.x, t.y);
-                vertices[edgeCount] = t + offset;
-            }
-            edgeCount++;
-        }
-
-        if (edgeCount == 3)
-        {
-            Raster::drawTriangle(Raster::Mode_Antialiased, extents, /*enableScissors=*/true, vertices, AtlasPacker::checkBitsCallback, &m_bitmap);
-        }
-        else
-        {
-            Raster::drawQuad(Raster::Mode_Antialiased, extents, /*enableScissors=*/true, vertices, AtlasPacker::checkBitsCallback, &m_bitmap);
-        }
-    }
-}
-#endif // 0
-
-
-static Color32 chartColor = Color32(0);
-static void selectRandomColor(MTRand & rand) {
-    // Pick random color for this chart. @@ Select random hue, but fixed saturation/luminance?
-    chartColor.r = 128 + rand.getRange(127);
-    chartColor.g = 128 + rand.getRange(127);
-    chartColor.b = 128 + rand.getRange(127);
-    chartColor.a = 255;
-}
-static bool debugDrawCallback(void * param, int x, int y, Vector3::Arg, Vector3::Arg, Vector3::Arg, float area)
-{
-    Image * image = (Image *)param;
-
-    if (area > 0.0) {
-        Color32 c = image->pixel(x, y);
-        c.r = chartColor.r;
-        c.g = chartColor.g;
-        c.b = chartColor.b;
-        c.a += U8(ftoi_round(0.5f * area * 255));
-        image->pixel(x, y) = c;
-    }
-
-    return true;
-}
-
-void AtlasPacker::addChart(const Chart * chart, int w, int h, int x, int y, int r, Image * debugOutput)
-{
-    nvDebugCheck(r == 0 || r == 1);
-
-    nvDebugCheck(debugOutput != NULL);
-    selectRandomColor(m_rand);
-
-    Vector2 extents = Vector2(float(w), float(h));
-    Vector2 offset = Vector2(float(x), float(y)) + Vector2(0.5);
-
-    // Rasterize chart faces, set bits.
-    const uint faceCount = chart->faceCount();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = chart->chartMesh()->faceAt(f);
-        
-        Vector2 vertices[4];
-
-        uint edgeCount = 0;
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            if (edgeCount < 4)
-            {
-                Vector2 t = it.vertex()->tex;
-                if (r == 1) swap(t.x, t.y);
-                vertices[edgeCount] = t + offset;
-            }
-            edgeCount++;
-        }
-
-        if (edgeCount == 3)
-        {
-            Raster::drawTriangle(Raster::Mode_Antialiased, extents, /*enableScissors=*/true, vertices, debugDrawCallback, debugOutput);
-        }
-        else
-        {
-            Raster::drawQuad(Raster::Mode_Antialiased, extents, /*enableScissors=*/true, vertices, debugDrawCallback, debugOutput);
-        }
-    }
-}
-
-
-void AtlasPacker::addChart(const BitMap * bitmap, int atlas_w, int atlas_h, int offset_x, int offset_y, int r, Image * debugOutput)
-{
-    nvDebugCheck(r == 0 || r == 1);
-
-    // Check whether the two bitmaps overlap.
-
-    const int w = bitmap->width();
-    const int h = bitmap->height();
-
-    if (debugOutput != NULL) {
-        selectRandomColor(m_rand);
-    }
-
-    if (r == 0) {
-        for (int y = 0; y < h; y++) {
-            int yy = y + offset_y;
-            if (yy >= 0) {
-                for (int x = 0; x < w; x++) {
-                    int xx = x + offset_x;
-                    if (xx >= 0) {
-                        if (bitmap->bitAt(x, y)) {
-                            if (xx < atlas_w && yy < atlas_h) {
-                                if (debugOutput) debugOutput->pixel(xx, yy) = chartColor;
-                                else {
-                                    nvDebugCheck(m_bitmap.bitAt(xx, yy) == false);
-                                    m_bitmap.setBitAt(xx, yy);
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-    else if (r == 1) {
-        for (int y = 0; y < h; y++) {
-            int xx = y + offset_x;
-            if (xx >= 0) {
-                for (int x = 0; x < w; x++) {
-                    int yy = x + offset_y;
-                    if (yy >= 0) {
-                        if (bitmap->bitAt(x, y)) {
-                            if (xx < atlas_w && yy < atlas_h) {
-                                if (debugOutput) debugOutput->pixel(xx, yy) = chartColor;
-                                else {
-                                    nvDebugCheck(m_bitmap.bitAt(xx, yy) == false);
-                                    m_bitmap.setBitAt(xx, yy);
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-
-
-
-/*static*/ bool AtlasPacker::checkBitsCallback(void * param, int x, int y, Vector3::Arg, Vector3::Arg, Vector3::Arg, float)
-{
-    BitMap * bitmap = (BitMap * )param;
-
-    nvDebugCheck(bitmap->bitAt(x, y) == false);
-
-    return true;
-}
-
-/*static*/ bool AtlasPacker::setBitsCallback(void * param, int x, int y, Vector3::Arg, Vector3::Arg, Vector3::Arg, float area)
-{
-    BitMap * bitmap = (BitMap * )param;
-
-    if (area > 0.0) {
-        bitmap->setBitAt(x, y);
-    }
-
-    return true;
-}
-
-
-
-float AtlasPacker::computeAtlasUtilization() const {
-    const uint w = m_width;
-    const uint h = m_height;
-    nvDebugCheck(w <= m_bitmap.width());
-    nvDebugCheck(h <= m_bitmap.height());
-
-    uint count = 0;
-    for (uint y = 0; y < h; y++) {
-        for (uint x = 0; x < w; x++) {
-            count += m_bitmap.bitAt(x, y);
-        }
-    }
-
-    return float(count) / (w * h);
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h b/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h
deleted file mode 100644
index 845dbfb6f3..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/AtlasPacker.h
+++ /dev/null
@@ -1,65 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_MESH_ATLASPACKER_H
-#define NV_MESH_ATLASPACKER_H
-
-#include "nvcore/RadixSort.h"
-#include "nvmath/Vector.h"
-#include "nvmath/Random.h"
-#include "nvimage/BitMap.h"
-#include "nvimage/Image.h"
-
-#include "nvmesh/nvmesh.h"
-
-
-namespace nv
-{
-    class Atlas;
-    class Chart;
-
-    struct AtlasPacker
-    {
-        AtlasPacker(Atlas * atlas);
-        ~AtlasPacker();
-
-        void packCharts(int quality, float texelArea, bool blockAligned, bool conservative);
-        float computeAtlasUtilization() const;
-
-    private:
-
-        void findChartLocation(int quality, const BitMap * bitmap, Vector2::Arg extents, int w, int h, int * best_x, int * best_y, int * best_w, int * best_h, int * best_r);
-        void findChartLocation_bruteForce(const BitMap * bitmap, Vector2::Arg extents, int w, int h, int * best_x, int * best_y, int * best_w, int * best_h, int * best_r);
-        void findChartLocation_random(const BitMap * bitmap, Vector2::Arg extents, int w, int h, int * best_x, int * best_y, int * best_w, int * best_h, int * best_r, int minTrialCount);
-
-        void drawChartBitmapDilate(const Chart * chart, BitMap * bitmap, int padding);
-        void drawChartBitmap(const Chart * chart, BitMap * bitmap, const Vector2 & scale, const Vector2 & offset);
-        
-        bool canAddChart(const BitMap * bitmap, int w, int h, int x, int y, int r);
-        void addChart(const BitMap * bitmap, int w, int h, int x, int y, int r, Image * debugOutput);
-        //void checkCanAddChart(const Chart * chart, int w, int h, int x, int y, int r);
-        void addChart(const Chart * chart, int w, int h, int x, int y, int r, Image * debugOutput);
-        
-
-        static bool checkBitsCallback(void * param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
-        static bool setBitsCallback(void * param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
-
-    private:
-
-        Atlas * m_atlas;
-        BitMap m_bitmap;
-        // -- GODOT start --
-        //Image m_debug_bitmap;
-        // -- GODOT end --
-        RadixSort m_radix;
-
-        uint m_width;
-        uint m_height;
-        
-        MTRand m_rand;
-       
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_ATLASPACKER_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/LeastSquaresConformalMap.cpp b/thirdparty/thekla_atlas/nvmesh/param/LeastSquaresConformalMap.cpp
deleted file mode 100644
index cd1e8bbb7b..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/LeastSquaresConformalMap.cpp
+++ /dev/null
@@ -1,483 +0,0 @@
-// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
-
-#include "nvmesh.h" // pch
-
-#include "LeastSquaresConformalMap.h"
-#include "ParameterizationQuality.h"
-#include "Util.h"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Vertex.h"
-#include "nvmesh/halfedge/Face.h"
-
-#include "nvmath/Sparse.h"
-#include "nvmath/Solver.h"
-#include "nvmath/Vector.inl"
-
-#include "nvcore/Array.inl"
-
-
-using namespace nv;
-using namespace HalfEdge;
-
-namespace
-{
-
-    // Test all pairs of vertices in the boundary and check distance.
-    static void findDiameterVertices(HalfEdge::Mesh * mesh, HalfEdge::Vertex ** a, HalfEdge::Vertex ** b)
-    {
-        nvDebugCheck(mesh != NULL);
-        nvDebugCheck(a != NULL);
-        nvDebugCheck(b != NULL);
-
-        const uint vertexCount = mesh->vertexCount();
-
-        float maxLength = 0.0f;
-
-        for (uint v0 = 1; v0 < vertexCount; v0++)
-        {
-            HalfEdge::Vertex * vertex0 = mesh->vertexAt(v0);
-            nvDebugCheck(vertex0 != NULL);
-
-            if (!vertex0->isBoundary()) continue;
-
-            for (uint v1 = 0; v1 < v0; v1++)
-            {
-                HalfEdge::Vertex * vertex1 = mesh->vertexAt(v1);
-                nvDebugCheck(vertex1 != NULL);
-
-                if (!vertex1->isBoundary()) continue;
-
-                float len = length(vertex0->pos - vertex1->pos);
-
-                if (len > maxLength)
-                {
-                    maxLength = len;
-
-                    *a = vertex0;
-                    *b = vertex1;
-                }
-            }
-        }
-
-        nvDebugCheck(*a != NULL && *b != NULL);
-    }
-
-    // Fast sweep in 3 directions
-    static bool findApproximateDiameterVertices(HalfEdge::Mesh * mesh, HalfEdge::Vertex ** a, HalfEdge::Vertex ** b)
-    {
-        nvDebugCheck(mesh != NULL);
-        nvDebugCheck(a != NULL);
-        nvDebugCheck(b != NULL);
-
-        const uint vertexCount = mesh->vertexCount();
-
-        HalfEdge::Vertex * minVertex[3];
-        HalfEdge::Vertex * maxVertex[3];
-
-        minVertex[0] = minVertex[1] = minVertex[2] = NULL;
-        maxVertex[0] = maxVertex[1] = maxVertex[2] = NULL;
-
-        for (uint v = 1; v < vertexCount; v++)
-        {
-            HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-            nvDebugCheck(vertex != NULL);
-
-            if (vertex->isBoundary())
-            {
-                minVertex[0] = minVertex[1] = minVertex[2] = vertex;
-                maxVertex[0] = maxVertex[1] = maxVertex[2] = vertex;
-                break;
-            }
-        }
-
-        if (minVertex[0] == NULL)
-        {
-            // Input mesh has not boundaries.
-            return false;
-        }
-
-        for (uint v = 1; v < vertexCount; v++)
-        {
-            HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-            nvDebugCheck(vertex != NULL);
-
-            if (!vertex->isBoundary())
-            {
-                // Skip interior vertices.
-                continue;
-            }
-
-            if (vertex->pos.x < minVertex[0]->pos.x) minVertex[0] = vertex;
-            else if (vertex->pos.x > maxVertex[0]->pos.x) maxVertex[0] = vertex;
-
-            if (vertex->pos.y < minVertex[1]->pos.y) minVertex[1] = vertex;
-            else if (vertex->pos.y > maxVertex[1]->pos.y) maxVertex[1] = vertex;
-
-            if (vertex->pos.z < minVertex[2]->pos.z) minVertex[2] = vertex;
-            else if (vertex->pos.z > maxVertex[2]->pos.z) maxVertex[2] = vertex;
-        }
-
-        float lengths[3];
-        for (int i = 0; i < 3; i++)
-        {
-            lengths[i] = length(minVertex[i]->pos - maxVertex[i]->pos);
-        }
-
-        if (lengths[0] > lengths[1] && lengths[0] > lengths[2])
-        {
-            *a = minVertex[0];
-            *b = maxVertex[0];
-        }
-        else if (lengths[1] > lengths[2])
-        {
-            *a = minVertex[1];
-            *b = maxVertex[1];
-        }
-        else
-        {
-            *a = minVertex[2];
-            *b = maxVertex[2];
-        }
-
-        return true;
-    }
-
-    // Conformal relations from Bruno Levy:
-
-    // Computes the coordinates of the vertices of a triangle
-    // in a local 2D orthonormal basis of the triangle's plane.
-    static void project_triangle(Vector3::Arg p0, Vector3::Arg p1, Vector3::Arg p2, Vector2 * z0, Vector2 * z1, Vector2 * z2)
-    {
-        Vector3 X = normalize(p1 - p0, 0.0f);
-        Vector3 Z = normalize(cross(X, (p2 - p0)), 0.0f);
-        Vector3 Y = normalize(cross(Z, X), 0.0f);
-
-        float x0 = 0.0f;
-        float y0 = 0.0f;
-        float x1 = length(p1 - p0);
-        float y1 = 0.0f;
-        float x2 = dot((p2 - p0), X);
-        float y2 = dot((p2 - p0), Y);
-
-        *z0 = Vector2(x0, y0);
-        *z1 = Vector2(x1, y1);
-        *z2 = Vector2(x2, y2);
-    }
-
-    // LSCM equation, geometric form :
-    // (Z1 - Z0)(U2 - U0) = (Z2 - Z0)(U1 - U0)
-    // Where Uk = uk + i.vk is the complex number 
-    //                       corresponding to (u,v) coords
-    //       Zk = xk + i.yk is the complex number 
-    //                       corresponding to local (x,y) coords
-    // cool: no divide with this expression,
-    //  makes it more numerically stable in
-    //  the presence of degenerate triangles.
-
-    static void setup_conformal_map_relations(SparseMatrix & A, int row, const HalfEdge::Vertex * v0, const HalfEdge::Vertex * v1, const HalfEdge::Vertex * v2)
-    {
-        int id0 = v0->id;
-        int id1 = v1->id;
-        int id2 = v2->id;
-
-        Vector3 p0 = v0->pos;
-        Vector3 p1 = v1->pos;
-        Vector3 p2 = v2->pos;
-
-        Vector2 z0, z1, z2;
-        project_triangle(p0, p1, p2, &z0, &z1, &z2);
-
-        Vector2 z01 = z1 - z0;
-        Vector2 z02 = z2 - z0;
-
-        float a = z01.x;
-        float b = z01.y;
-        float c = z02.x;
-        float d = z02.y;
-        nvCheck(b == 0.0f);
-
-        // Note  : 2*id + 0 --> u
-        //         2*id + 1 --> v
-        int u0_id = 2 * id0 + 0;
-        int v0_id = 2 * id0 + 1;
-        int u1_id = 2 * id1 + 0;
-        int v1_id = 2 * id1 + 1;
-        int u2_id = 2 * id2 + 0;
-        int v2_id = 2 * id2 + 1;
-
-        // Note : b = 0
-
-        // Real part
-        A.setCoefficient(u0_id, 2 * row + 0, -a+c);
-        A.setCoefficient(v0_id, 2 * row + 0,  b-d);
-        A.setCoefficient(u1_id, 2 * row + 0,   -c);
-        A.setCoefficient(v1_id, 2 * row + 0,    d);
-        A.setCoefficient(u2_id, 2 * row + 0,    a);
-
-        // Imaginary part
-        A.setCoefficient(u0_id, 2 * row + 1, -b+d);
-        A.setCoefficient(v0_id, 2 * row + 1, -a+c);
-        A.setCoefficient(u1_id, 2 * row + 1,   -d);
-        A.setCoefficient(v1_id, 2 * row + 1,   -c);
-        A.setCoefficient(v2_id, 2 * row + 1,    a);
-    }
-
-
-    // Conformal relations from Brecht Van Lommel (based on ABF):
-
-    static float vec_angle_cos(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3)
-    {
-        Vector3 d1 = v1 - v2;
-        Vector3 d2 = v3 - v2;
-        return clamp(dot(d1, d2) / (length(d1) * length(d2)), -1.0f, 1.0f);
-    }
-
-    static float vec_angle(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3)
-    {
-        float dot = vec_angle_cos(v1, v2, v3);
-        return acosf(dot);
-    }
-
-    static void triangle_angles(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3, float *a1, float *a2, float *a3)
-    {
-        *a1 = vec_angle(v3, v1, v2);
-        *a2 = vec_angle(v1, v2, v3);
-        *a3 = PI - *a2 - *a1;
-    }
-
-    static void triangle_cosines(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3, float *a1, float *a2, float *a3)
-    {
-        *a1 = vec_angle_cos(v3, v1, v2);
-        *a2 = vec_angle_cos(v1, v2, v3);
-        *a3 = vec_angle_cos(v2, v3, v1);
-    }
-
-    static void setup_abf_relations(SparseMatrix & A, int row, const HalfEdge::Vertex * v0, const HalfEdge::Vertex * v1, const HalfEdge::Vertex * v2)
-    {
-        int id0 = v0->id;
-        int id1 = v1->id;
-        int id2 = v2->id;
-
-        Vector3 p0 = v0->pos;
-        Vector3 p1 = v1->pos;
-        Vector3 p2 = v2->pos;
-
-#if 1
-        // @@ IC: Wouldn't it be more accurate to return cos and compute 1-cos^2?
-        // It does indeed seem to be a little bit more robust.
-        // @@ Need to revisit this more carefully!
-
-        float a0, a1, a2;
-        triangle_angles(p0, p1, p2, &a0, &a1, &a2);
-
-        float s0 = sinf(a0);
-        float s1 = sinf(a1);
-        float s2 = sinf(a2);
-
-        /*// Hack for degenerate triangles.
-        if (equal(s0, 0) && equal(s1, 0) && equal(s2, 0)) {
-            if (equal(a0, 0)) a0 += 0.001f;
-            if (equal(a1, 0)) a1 += 0.001f;
-            if (equal(a2, 0)) a2 += 0.001f;
-
-            if (equal(a0, PI)) a0 = PI - a1 - a2;
-            if (equal(a1, PI)) a1 = PI - a0 - a2;
-            if (equal(a2, PI)) a2 = PI - a0 - a1;
-
-            s0 = sinf(a0);
-            s1 = sinf(a1);
-            s2 = sinf(a2);
-        }*/
-
-        if (s1 > s0 && s1 > s2)
-        {
-            swap(s1, s2);
-            swap(s0, s1);
-
-            swap(a1, a2);
-            swap(a0, a1);
-
-            swap(id1, id2);
-            swap(id0, id1);
-        }
-        else if (s0 > s1 && s0 > s2)
-        {
-            swap(s0, s2);
-            swap(s0, s1);
-
-            swap(a0, a2);
-            swap(a0, a1);
-
-            swap(id0, id2);
-            swap(id0, id1);
-        }
-
-        float c0 = cosf(a0);
-#else
-        float c0, c1, c2;
-        triangle_cosines(p0, p1, p2, &c0, &c1, &c2);
-
-        float s0 = 1 - c0*c0;
-        float s1 = 1 - c1*c1;
-        float s2 = 1 - c2*c2;
-
-        nvDebugCheck(s0 != 0 || s1 != 0 || s2 != 0);
-
-        if (s1 > s0 && s1 > s2)
-        {
-            swap(s1, s2);
-            swap(s0, s1);
-
-            swap(c1, c2);
-            swap(c0, c1);
-
-            swap(id1, id2);
-            swap(id0, id1);
-        }
-        else if (s0 > s1 && s0 > s2)
-        {
-            swap(s0, s2);
-            swap(s0, s1);
-
-            swap(c0, c2);
-            swap(c0, c1);
-
-            swap(id0, id2);
-            swap(id0, id1);
-        }
-#endif
-
-        float ratio = (s2 == 0.0f) ? 1.0f: s1/s2;
-        float cosine = c0 * ratio;
-        float sine = s0 * ratio;
-
-        // Note  : 2*id + 0 --> u
-        //         2*id + 1 --> v
-        int u0_id = 2 * id0 + 0;
-        int v0_id = 2 * id0 + 1;
-        int u1_id = 2 * id1 + 0;
-        int v1_id = 2 * id1 + 1;
-        int u2_id = 2 * id2 + 0;
-        int v2_id = 2 * id2 + 1;
-
-        // Real part
-        A.setCoefficient(u0_id, 2 * row + 0, cosine - 1.0f);
-        A.setCoefficient(v0_id, 2 * row + 0, -sine);
-        A.setCoefficient(u1_id, 2 * row + 0, -cosine);
-        A.setCoefficient(v1_id, 2 * row + 0, sine);
-        A.setCoefficient(u2_id, 2 * row + 0, 1);
-
-        // Imaginary part
-        A.setCoefficient(u0_id, 2 * row + 1, sine);
-        A.setCoefficient(v0_id, 2 * row + 1, cosine - 1.0f);
-        A.setCoefficient(u1_id, 2 * row + 1, -sine);
-        A.setCoefficient(v1_id, 2 * row + 1, -cosine);
-        A.setCoefficient(v2_id, 2 * row + 1, 1);
-    }
-
-} // namespace
-
-
-bool nv::computeLeastSquaresConformalMap(HalfEdge::Mesh * mesh)
-{
-    nvDebugCheck(mesh != NULL);
-
-    // For this to work properly, mesh should not have colocals that have the same 
-    // attributes, unless you want the vertices to actually have different texcoords.
-
-    const uint vertexCount = mesh->vertexCount();
-    const uint D = 2 * vertexCount;
-    const uint N = 2 * countMeshTriangles(mesh);
-
-    // N is the number of equations (one per triangle)
-    // D is the number of variables (one per vertex; there are 2 pinned vertices).
-	if (N < D - 4) {
-		return false;
-	}
-
-    SparseMatrix A(D, N);
-    FullVector b(N);
-    FullVector x(D);
-
-    // Fill b:
-    b.fill(0.0f);
-
-    // Fill x:
-    HalfEdge::Vertex * v0;
-    HalfEdge::Vertex * v1;
-    if (!findApproximateDiameterVertices(mesh, &v0, &v1))
-    {
-        // Mesh has no boundaries.
-        return false;
-    }
-    if (v0->tex == v1->tex)
-    {
-        // LSCM expects an existing parameterization.
-        return false;
-    }
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-        nvDebugCheck(vertex != NULL);
-
-        // Initial solution.
-        x[2 * v + 0] = vertex->tex.x;
-        x[2 * v + 1] = vertex->tex.y;
-    }
-
-    // Fill A:
-    const uint faceCount = mesh->faceCount();
-    for (uint f = 0, t = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = mesh->faceAt(f);
-        nvDebugCheck(face != NULL);
-        nvDebugCheck(face->edgeCount() == 3);
-
-        const HalfEdge::Vertex * vertex0 = NULL;
-
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Edge * edge = it.current();
-            nvCheck(edge != NULL);
-
-            if (vertex0 == NULL)
-            {
-                vertex0 = edge->vertex;
-            }
-            else if (edge->next->vertex != vertex0)
-            {
-                const HalfEdge::Vertex * vertex1 = edge->from();
-                const HalfEdge::Vertex * vertex2 = edge->to();
-
-                setup_abf_relations(A, t, vertex0, vertex1, vertex2);
-                //setup_conformal_map_relations(A, t, vertex0, vertex1, vertex2);
-
-                t++;
-            }
-        }
-    }
-
-    const uint lockedParameters[] =
-    {
-        2 * v0->id + 0,
-        2 * v0->id + 1,
-        2 * v1->id + 0,
-        2 * v1->id + 1
-    };
-
-    // Solve
-    LeastSquaresSolver(A, b, x, lockedParameters, 4, 0.000001f);
-
-    // Map x back to texcoords:
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-        nvDebugCheck(vertex != NULL);
-
-        vertex->tex = Vector2(x[2 * v + 0], x[2 * v + 1]);
-    }
-
-    return true;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/param/LeastSquaresConformalMap.h b/thirdparty/thekla_atlas/nvmesh/param/LeastSquaresConformalMap.h
deleted file mode 100644
index 51fbf193c8..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/LeastSquaresConformalMap.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
-
-#pragma once
-#ifndef NV_MESH_LEASTSQUARESCONFORMALMAP_H
-#define NV_MESH_LEASTSQUARESCONFORMALMAP_H
-
-namespace nv
-{
-    namespace HalfEdge { class Mesh; }
-
-    bool computeLeastSquaresConformalMap(HalfEdge::Mesh * mesh);
-
-} // nv namespace
-
-#endif // NV_MESH_LEASTSQUARESCONFORMALMAP_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/OrthogonalProjectionMap.cpp b/thirdparty/thekla_atlas/nvmesh/param/OrthogonalProjectionMap.cpp
deleted file mode 100644
index d6e5e30561..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/OrthogonalProjectionMap.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh.h" // pch
-
-#include "OrthogonalProjectionMap.h"
-
-#include "nvcore/Array.inl"
-
-#include "nvmath/Fitting.h"
-#include "nvmath/Vector.inl"
-#include "nvmath/Box.inl"
-#include "nvmath/Plane.inl"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Vertex.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/geometry/Bounds.h"
-
-
-using namespace nv;
-
-bool nv::computeOrthogonalProjectionMap(HalfEdge::Mesh * mesh)
-{
-    Vector3 axis[2];
-
-#if 1
-
-    uint vertexCount = mesh->vertexCount();
-    Array<Vector3> points(vertexCount);
-    points.resize(vertexCount);
-
-    for (uint i = 0; i < vertexCount; i++)
-    {
-        points[i] = mesh->vertexAt(i)->pos;
-    }
-
-#if 0
-    axis[0] = Fit::computePrincipalComponent_EigenSolver(vertexCount, points.buffer());
-    axis[0] = normalize(axis[0]);
-
-    Plane plane = Fit::bestPlane(vertexCount, points.buffer());
-
-    Vector3 n = plane.vector();
-
-    axis[1] = cross(axis[0], n);
-    axis[1] = normalize(axis[1]);
-#else
-    // Avoid redundant computations.
-    float matrix[6];
-    Fit::computeCovariance(vertexCount, points.buffer(), matrix);
-
-    if (matrix[0] == 0 && matrix[3] == 0 && matrix[5] == 0) {
-        return false;
-    }
-
-    float eigenValues[3];
-    Vector3 eigenVectors[3];
-    if (!nv::Fit::eigenSolveSymmetric3(matrix, eigenValues, eigenVectors)) {
-        return false;
-    }
-
-    axis[0] = normalize(eigenVectors[0]);
-    axis[1] = normalize(eigenVectors[1]);
-#endif
-
-
-#else
-
-    // IC: I thought this was generally more robust, but turns out it's not even guaranteed to return a valid projection. Imagine a narrow quad perpendicular to one plane, but rotated so that the shortest axis of 
-    // the bounding box is in the direction of that plane.
-
-    // Use the shortest box axis
-    Box box = MeshBounds::box(mesh);
-    Vector3 dir = box.extents();
-
-    if (fabs(dir.x) <= fabs(dir.y) && fabs(dir.x) <= fabs(dir.z)) {
-        axis[0] = Vector3(0, 1, 0); 
-        axis[1] = Vector3(0, 0, 1);
-    }
-    else if (fabs(dir.y) <= fabs(dir.z)) {
-        axis[0] = Vector3(1, 0, 0); 
-        axis[1] = Vector3(0, 0, 1);
-    }
-    else {
-        axis[0] = Vector3(1, 0, 0); 
-        axis[1] = Vector3(0, 1, 0);
-    }
-#endif
-
-    // Project vertices to plane.
-    for (HalfEdge::Mesh::VertexIterator it(mesh->vertices()); !it.isDone(); it.advance())
-    {
-        HalfEdge::Vertex * vertex = it.current();
-        vertex->tex.x = dot(axis[0], vertex->pos);
-        vertex->tex.y = dot(axis[1], vertex->pos);
-    }
-
-    return true;
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/param/OrthogonalProjectionMap.h b/thirdparty/thekla_atlas/nvmesh/param/OrthogonalProjectionMap.h
deleted file mode 100644
index 54920413d5..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/OrthogonalProjectionMap.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#pragma once
-#ifndef NV_MESH_ORTHOGONALPROJECTIONMAP_H
-#define NV_MESH_ORTHOGONALPROJECTIONMAP_H
-
-namespace nv
-{
-    namespace HalfEdge { class Mesh; }
-
-    bool computeOrthogonalProjectionMap(HalfEdge::Mesh * mesh);
-
-} // nv namespace
-
-#endif // NV_MESH_ORTHOGONALPROJECTIONMAP_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/ParameterizationQuality.cpp b/thirdparty/thekla_atlas/nvmesh/param/ParameterizationQuality.cpp
deleted file mode 100644
index 683ee603cd..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/ParameterizationQuality.cpp
+++ /dev/null
@@ -1,323 +0,0 @@
-// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
-
-#include "nvmesh.h" // pch
-
-#include "ParameterizationQuality.h"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/halfedge/Vertex.h"
-#include "nvmesh/halfedge/Edge.h"
-
-#include "nvmath/Vector.inl"
-
-#include "nvcore/Debug.h"
-
-#include <float.h>
-
-
-using namespace nv;
-
-#if 0
-/*
-float triangleConformalEnergy(Vector3 q[3], Vector2 p[3])
-{
-const Vector3 v1 = q[0];
-const Vector3 v2 = q[1];
-const Vector3 v3 = q[2];
-
-const Vector2 w1 = p[0];
-const Vector2 w2 = p[1];
-const Vector2 w3 = p[2];
-
-float x1 = v2.x() - v1.x();
-float x2 = v3.x() - v1.x();
-float y1 = v2.y() - v1.y();
-float y2 = v3.y() - v1.y();
-float z1 = v2.z() - v1.z();
-float z2 = v3.z() - v1.z();
-
-float s1 = w2.x() - w1.x();
-float s2 = w3.x() - w1.x();
-float t1 = w2.y() - w1.y();
-float t2 = w3.y() - w1.y();
-
-float r = 1.0f / (s1 * t2 - s2 * t1);
-Vector3 sdir((t2 * x1 - t1 * x2) * r, (t2 * y1 - t1 * y2) * r, (t2 * z1 - t1 * z2) * r);
-Vector3 tdir((s1 * x2 - s2 * x1) * r, (s1 * y2 - s2 * y1) * r, (s1 * z2 - s2 * z1) * r);
-
-Vector3 N = cross(v3-v1, v2-v1);
-
-// Rotate 90 around N.
-}
-*/
-
-static float triangleConformalEnergy(Vector3 q[3], Vector2 p[3])
-{
-    // Using Denis formulas:
-    Vector3 c0 = q[1] - q[2];
-    Vector3 c1 = q[2] - q[0];
-    Vector3 c2 = q[0] - q[1];
-
-    Vector3 N = cross(-c0, c1);
-    float T = length(N);	// 2T
-    N = normalize(N, 0);
-
-    float cot_alpha0 = dot(-c1, c2) / length(cross(-c1, c2));
-    float cot_alpha1 = dot(-c2, c0) / length(cross(-c2, c0));
-    float cot_alpha2 = dot(-c0, c1) / length(cross(-c0, c1));
-
-    Vector3 t0 = -cot_alpha1 * c1 + cot_alpha2 * c2;
-    Vector3 t1 = -cot_alpha2 * c2 + cot_alpha0 * c0;
-    Vector3 t2 = -cot_alpha0 * c0 + cot_alpha1 * c1;
-
-    nvCheck(equal(length(t0), length(c0)));
-    nvCheck(equal(length(t1), length(c1)));
-    nvCheck(equal(length(t2), length(c2)));
-    nvCheck(equal(dot(t0, c0), 0));
-    nvCheck(equal(dot(t1, c1), 0));
-    nvCheck(equal(dot(t2, c2), 0));
-
-    // Gradients
-    Vector3 grad_u = 1.0f / T * (p[0].x * t0 + p[1].x * t1 + p[2].x * t2);
-    Vector3 grad_v = 1.0f / T * (p[0].y * t0 + p[1].y * t1 + p[2].y * t2);
-
-    // Rotated gradients
-    Vector3 Jgrad_u = 1.0f / T * (p[0].x * c0 + p[1].x * c1 + p[2].x * c2);
-    Vector3 Jgrad_v = 1.0f / T * (p[0].y * c0 + p[1].y * c1 + p[2].y * c2);
-
-    // Using Lengyel's formulas:
-    { 
-        const Vector3 v1 = q[0];
-        const Vector3 v2 = q[1];
-        const Vector3 v3 = q[2];
-
-        const Vector2 w1 = p[0];
-        const Vector2 w2 = p[1];
-        const Vector2 w3 = p[2];
-
-        float x1 = v2.x - v1.x;
-        float x2 = v3.x - v1.x;
-        float y1 = v2.y - v1.y;
-        float y2 = v3.y - v1.y;
-        float z1 = v2.z - v1.z;
-        float z2 = v3.z - v1.z;
-
-        float s1 = w2.x - w1.x;
-        float s2 = w3.x - w1.x;
-        float t1 = w2.y - w1.y;
-        float t2 = w3.y - w1.y;
-
-        float r = 1.0f / (s1 * t2 - s2 * t1);
-        Vector3 sdir((t2 * x1 - t1 * x2) * r, (t2 * y1 - t1 * y2) * r, (t2 * z1 - t1 * z2) * r);
-        Vector3 tdir((s1 * x2 - s2 * x1) * r, (s1 * y2 - s2 * y1) * r, (s1 * z2 - s2 * z1) * r);
-
-        Vector3 Jsdir = cross(N, sdir);
-        Vector3 Jtdir = cross(N, tdir);
-
-        float x = 3;
-    }
-
-    // check: sdir == grad_u
-    // check: tdir == grad_v
-
-    return length(grad_u - Jgrad_v);
-}
-#endif // 0
-
-
-ParameterizationQuality::ParameterizationQuality()
-{
-    m_totalTriangleCount = 0;
-    m_flippedTriangleCount = 0;
-    m_zeroAreaTriangleCount = 0;
-
-    m_parametricArea = 0.0f;
-    m_geometricArea = 0.0f;
-
-    m_stretchMetric = 0.0f;
-    m_maxStretchMetric = 0.0f;
-
-    m_conformalMetric = 0.0f;
-    m_authalicMetric = 0.0f;
-}
-
-ParameterizationQuality::ParameterizationQuality(const HalfEdge::Mesh * mesh)
-{
-    nvDebugCheck(mesh != NULL);
-
-    m_totalTriangleCount = 0;
-    m_flippedTriangleCount = 0;
-    m_zeroAreaTriangleCount = 0;
-
-    m_parametricArea = 0.0f;
-    m_geometricArea = 0.0f;
-
-    m_stretchMetric = 0.0f;
-    m_maxStretchMetric = 0.0f;
-
-    m_conformalMetric = 0.0f;
-    m_authalicMetric = 0.0f;
-
-    const uint faceCount = mesh->faceCount();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = mesh->faceAt(f);
-        const HalfEdge::Vertex * vertex0 = NULL;
-
-        Vector3 p[3];
-        Vector2 t[3];
-
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-        {
-            const HalfEdge::Edge * edge = it.current();
-
-            if (vertex0 == NULL)
-            {
-                vertex0 = edge->vertex;
-
-                p[0] = vertex0->pos;
-                t[0] = vertex0->tex;
-            }
-            else if (edge->to() != vertex0)
-            {
-                p[1] = edge->from()->pos;
-                p[2] = edge->to()->pos;
-                t[1] = edge->from()->tex;
-                t[2] = edge->to()->tex;
-
-                processTriangle(p, t);
-            }
-        }
-    }
-
-    if (m_flippedTriangleCount + m_zeroAreaTriangleCount == faceCount)
-    {
-        // If all triangles are flipped, then none is.
-        m_flippedTriangleCount = 0;
-    }
-
-    nvDebugCheck(isFinite(m_parametricArea) && m_parametricArea >= 0);
-    nvDebugCheck(isFinite(m_geometricArea) && m_geometricArea >= 0);
-    nvDebugCheck(isFinite(m_stretchMetric));
-    nvDebugCheck(isFinite(m_maxStretchMetric));
-    nvDebugCheck(isFinite(m_conformalMetric));
-    nvDebugCheck(isFinite(m_authalicMetric));
-}
-
-bool ParameterizationQuality::isValid() const
-{
-    return m_flippedTriangleCount == 0; // @@ Does not test for self-overlaps.
-}
-
-float ParameterizationQuality::rmsStretchMetric() const
-{
-    if (m_geometricArea == 0) return 0.0f;
-    float normFactor = sqrtf(m_parametricArea / m_geometricArea);
-    return sqrtf(m_stretchMetric / m_geometricArea) * normFactor;
-}
-
-float ParameterizationQuality::maxStretchMetric() const
-{
-    if (m_geometricArea == 0) return 0.0f;
-    float normFactor = sqrtf(m_parametricArea / m_geometricArea);
-    return m_maxStretchMetric * normFactor;
-}
-
-float ParameterizationQuality::rmsConformalMetric() const
-{
-    if (m_geometricArea == 0) return 0.0f;
-    return sqrtf(m_conformalMetric / m_geometricArea);
-}
-
-float ParameterizationQuality::maxAuthalicMetric() const
-{
-    if (m_geometricArea == 0) return 0.0f;
-    return sqrtf(m_authalicMetric / m_geometricArea);
-}
-
-void ParameterizationQuality::operator += (const ParameterizationQuality & pq)
-{
-    m_totalTriangleCount += pq.m_totalTriangleCount;
-    m_flippedTriangleCount += pq.m_flippedTriangleCount;
-    m_zeroAreaTriangleCount += pq.m_zeroAreaTriangleCount;
-
-    m_parametricArea += pq.m_parametricArea;
-    m_geometricArea += pq.m_geometricArea;
-
-    m_stretchMetric += pq.m_stretchMetric;
-    m_maxStretchMetric = max(m_maxStretchMetric, pq.m_maxStretchMetric);
-
-    m_conformalMetric += pq.m_conformalMetric;
-    m_authalicMetric += pq.m_authalicMetric;
-}
-
-
-void ParameterizationQuality::processTriangle(Vector3 q[3], Vector2 p[3])
-{
-    m_totalTriangleCount++;
-
-    // Evaluate texture stretch metric. See:
-    // - "Texture Mapping Progressive Meshes", Sander, Snyder, Gortler & Hoppe
-    // - "Mesh Parameterization: Theory and Practice", Siggraph'07 Course Notes, Hormann, Levy & Sheffer.
-
-    float t1 = p[0].x;
-    float s1 = p[0].y;
-    float t2 = p[1].x;
-    float s2 = p[1].y;
-    float t3 = p[2].x;
-    float s3 = p[2].y;
-
-    float geometricArea = length(cross(q[1] - q[0], q[2] - q[0])) / 2;
-    float parametricArea = ((s2 - s1)*(t3 - t1) - (s3 - s1)*(t2 - t1)) / 2;
-    
-    if (isZero(parametricArea))
-    {
-        m_zeroAreaTriangleCount++;
-        return;
-    }
-
-    Vector3 Ss = (q[0] * (t2- t3) + q[1] * (t3 - t1) + q[2] * (t1 - t2)) / (2 * parametricArea);
-    Vector3 St = (q[0] * (s3- s2) + q[1] * (s1 - s3) + q[2] * (s2 - s1)) / (2 * parametricArea);
-
-    float a = dot(Ss, Ss); // E
-    float b = dot(Ss, St); // F
-    float c = dot(St, St); // G
-
-    // Compute eigen-values of the first fundamental form:
-    float sigma1 = sqrtf(0.5f * max(0.0f, a + c - sqrtf(square(a - c) + 4 * square(b)))); // gamma uppercase, min eigenvalue.
-    float sigma2 = sqrtf(0.5f * max(0.0f, a + c + sqrtf(square(a - c) + 4 * square(b)))); // gamma lowercase, max eigenvalue.
-    nvCheck(sigma2 >= sigma1);
-
-    // isometric: sigma1 = sigma2 = 1
-    // conformal: sigma1 / sigma2 = 1
-    // authalic: sigma1 * sigma2 = 1
-
-    float rmsStretch = sqrtf((a + c) * 0.5f);
-    float rmsStretch2 = sqrtf((square(sigma1) + square(sigma2)) * 0.5f);
-    nvDebugCheck(equal(rmsStretch, rmsStretch2, 0.01f));
-
-    if (parametricArea < 0.0f)
-    {
-        // Count flipped triangles.
-        m_flippedTriangleCount++;
-
-        parametricArea = fabsf(parametricArea);
-    }
-
-    m_stretchMetric += square(rmsStretch) * geometricArea;
-    m_maxStretchMetric = max(m_maxStretchMetric, sigma2);
-
-    if (!isZero(sigma1, 0.000001f)) {
-        // sigma1 is zero when geometricArea is zero.
-        m_conformalMetric += (sigma2 / sigma1) * geometricArea;
-    }
-    m_authalicMetric += (sigma1 * sigma2) * geometricArea;
-
-    // Accumulate total areas.
-    m_geometricArea += geometricArea;
-    m_parametricArea += parametricArea;
-
-
-    //triangleConformalEnergy(q, p);
-}
diff --git a/thirdparty/thekla_atlas/nvmesh/param/ParameterizationQuality.h b/thirdparty/thekla_atlas/nvmesh/param/ParameterizationQuality.h
deleted file mode 100644
index 342e26b889..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/ParameterizationQuality.h
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
-
-#pragma once
-#ifndef NV_MESH_PARAMETERIZATIONQUALITY_H
-#define NV_MESH_PARAMETERIZATIONQUALITY_H
-
-#include <nvmesh/nvmesh.h>
-
-namespace nv
-{
-    class Vector2;
-    class Vector3;
-
-    namespace HalfEdge { class Mesh; }
-
-    // Estimate quality of existing parameterization.
-    NVMESH_CLASS class ParameterizationQuality
-    {
-    public:
-        ParameterizationQuality();
-        ParameterizationQuality(const HalfEdge::Mesh * mesh);
-
-        bool isValid() const;
-
-        float rmsStretchMetric() const;
-        float maxStretchMetric() const;
-
-        float rmsConformalMetric() const;
-        float maxAuthalicMetric() const;
-
-        void operator += (const ParameterizationQuality & pq);
-
-    private:
-
-        void processTriangle(Vector3 p[3], Vector2 t[3]);
-
-    private:
-
-        uint m_totalTriangleCount;
-        uint m_flippedTriangleCount;
-        uint m_zeroAreaTriangleCount;
-
-        float m_parametricArea;
-        float m_geometricArea;
-
-        float m_stretchMetric;
-        float m_maxStretchMetric;
-
-        float m_conformalMetric;
-        float m_authalicMetric;
-
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_PARAMETERIZATIONQUALITY_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/SingleFaceMap.cpp b/thirdparty/thekla_atlas/nvmesh/param/SingleFaceMap.cpp
deleted file mode 100644
index 4b205de8bf..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/SingleFaceMap.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
-
-#include "nvmesh.h" // pch
-
-#include "SingleFaceMap.h"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Vertex.h"
-#include "nvmesh/halfedge/Face.h"
-
-#include "nvmath/Vector.inl"
-
-using namespace nv;
-
-
-
-void nv::computeSingleFaceMap(HalfEdge::Mesh * mesh)
-{
-    nvDebugCheck(mesh != NULL);
-    nvDebugCheck(mesh->faceCount() == 1);
-
-    HalfEdge::Face * face = mesh->faceAt(0);
-    nvCheck(face != NULL);
-
-    Vector3 p0 = face->edge->from()->pos;
-    Vector3 p1 = face->edge->to()->pos;
-
-    Vector3 X = normalizeSafe(p1 - p0, Vector3(0.0f), 0.0f);
-    Vector3 Z = face->normal();
-    Vector3 Y = normalizeSafe(cross(Z, X), Vector3(0.0f), 0.0f);
-
-    uint i = 0;
-    for (HalfEdge::Face::EdgeIterator it(face->edges()); !it.isDone(); it.advance(), i++)
-    {
-        HalfEdge::Vertex * vertex = it.vertex();
-        nvCheck(vertex != NULL);
-
-        if (i == 0)
-        {
-            vertex->tex = Vector2(0);
-        }
-        else
-        {
-            Vector3 pn = vertex->pos;
-
-            float xn = dot((pn - p0), X);
-            float yn = dot((pn - p0), Y);
-
-            vertex->tex = Vector2(xn, yn);
-        }
-    }
-}
-
diff --git a/thirdparty/thekla_atlas/nvmesh/param/SingleFaceMap.h b/thirdparty/thekla_atlas/nvmesh/param/SingleFaceMap.h
deleted file mode 100644
index b70719f5d8..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/SingleFaceMap.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright NVIDIA Corporation 2008 -- Ignacio Castano <icastano@nvidia.com>
-
-#pragma once
-#ifndef NV_MESH_SINGLEFACEMAP_H
-#define NV_MESH_SINGLEFACEMAP_H
-
-namespace nv
-{
-    namespace HalfEdge
-    {
-        class Mesh;
-    }
-
-    void computeSingleFaceMap(HalfEdge::Mesh * mesh);
-
-} // nv namespace
-
-#endif // NV_MESH_SINGLEFACEMAP_H
diff --git a/thirdparty/thekla_atlas/nvmesh/param/Util.cpp b/thirdparty/thekla_atlas/nvmesh/param/Util.cpp
deleted file mode 100644
index fe7b58edf8..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/Util.cpp
+++ /dev/null
@@ -1,326 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh.h" // pch
-
-#include "Util.h"
-
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/halfedge/Vertex.h"
-
-#include "nvmath/Vector.inl"
-
-#include "nvcore/Array.inl"
-
-
-using namespace nv;
-
-// Determine if the given mesh is a	quad mesh.
-bool nv::isQuadMesh(const HalfEdge::Mesh * mesh)
-{
-    nvDebugCheck(mesh != NULL);
-
-    const uint faceCount = mesh->faceCount();
-    for(uint i = 0; i < faceCount; i++) {
-        const HalfEdge::Face * face = mesh->faceAt(i);
-        if (face->edgeCount() != 4) {
-            return false;
-        }
-    }
-
-    return true;
-}
-
-bool nv::isTriangularMesh(const HalfEdge::Mesh * mesh)
-{
-    for (HalfEdge::Mesh::ConstFaceIterator it(mesh->faces()); !it.isDone(); it.advance())
-    {
-        const HalfEdge::Face * face = it.current();
-        if (face->edgeCount() != 3) return false;
-    }
-    return true;
-}
-
-
-uint nv::countMeshTriangles(const HalfEdge::Mesh * mesh)
-{
-    const uint faceCount = mesh->faceCount();
-
-    uint triangleCount = 0;
-
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = mesh->faceAt(f);
-        
-        uint edgeCount = face->edgeCount();
-        nvDebugCheck(edgeCount > 2);
-
-        triangleCount += edgeCount - 2;
-    }
-
-    return triangleCount;
-}
-
-const HalfEdge::Vertex * nv::findBoundaryVertex(const HalfEdge::Mesh * mesh)
-{
-    const uint vertexCount = mesh->vertexCount();
-
-    for (uint v = 0; v < vertexCount; v++)
-    {
-        const HalfEdge::Vertex * vertex = mesh->vertexAt(v);
-        if (vertex->isBoundary()) return vertex;
-    }
-
-    return NULL;
-}
-
-
-HalfEdge::Mesh * nv::unifyVertices(const HalfEdge::Mesh * inputMesh)
-{
-    HalfEdge::Mesh * mesh = new HalfEdge::Mesh;
-    
-    // Only add the first colocal.
-    const uint vertexCount = inputMesh->vertexCount();
-    for (uint v = 0; v < vertexCount; v++) {
-        const HalfEdge::Vertex * vertex = inputMesh->vertexAt(v);
-        
-        if (vertex->isFirstColocal()) {
-            mesh->addVertex(vertex->pos);
-        }
-    }
-
-    nv::Array<uint> indexArray;
-
-    // Add new faces pointing to first colocals.
-    uint faceCount = inputMesh->faceCount();
-    for (uint f = 0; f < faceCount; f++) {
-        const HalfEdge::Face * face = inputMesh->faceAt(f);
-
-        indexArray.clear();
-
-        for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance()) {
-            const HalfEdge::Edge * edge = it.current();
-            const HalfEdge::Vertex * vertex = edge->vertex->firstColocal();
-
-            indexArray.append(vertex->id);
-        }
-
-        mesh->addFace(indexArray);
-    }
-
-    mesh->linkBoundary();
-
-    return mesh;
-}
-
-#include "nvmath/Basis.h"
-
-static bool pointInTriangle(const Vector2 & p, const Vector2 & a, const Vector2 & b, const Vector2 & c)
-{
-    return triangleArea(a, b, p) >= 0.00001f && 
-        triangleArea(b, c, p) >= 0.00001f && 
-        triangleArea(c, a, p) >= 0.00001f; 
-}
-
-
-// This is doing a simple ear-clipping algorithm that skips invalid triangles. Ideally, we should
-// also sort the ears by angle, start with the ones that have the smallest angle and proceed in order.
-HalfEdge::Mesh * nv::triangulate(const HalfEdge::Mesh * inputMesh)
-{
-    HalfEdge::Mesh * mesh = new HalfEdge::Mesh;
-    
-    // Add all vertices.
-    const uint vertexCount = inputMesh->vertexCount();
-    for (uint v = 0; v < vertexCount; v++) {
-        const HalfEdge::Vertex * vertex = inputMesh->vertexAt(v);
-        mesh->addVertex(vertex->pos);
-    }
-
-    Array<int> polygonVertices;
-    Array<float> polygonAngles;
-    Array<Vector2> polygonPoints;
-
-    const uint faceCount = inputMesh->faceCount();
-    for (uint f = 0; f < faceCount; f++)
-    {
-        const HalfEdge::Face * face = inputMesh->faceAt(f);
-        nvDebugCheck(face != NULL);
-
-        const uint edgeCount = face->edgeCount();
-        nvDebugCheck(edgeCount >= 3);
-
-        polygonVertices.clear();
-        polygonVertices.reserve(edgeCount);
-
-        if (edgeCount == 3) {
-            // Simple case for triangles.
-            for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-            {
-                const HalfEdge::Edge * edge = it.current();
-                const HalfEdge::Vertex * vertex = edge->vertex;
-                polygonVertices.append(vertex->id);
-            }
-
-            int v0 = polygonVertices[0];
-            int v1 = polygonVertices[1];
-            int v2 = polygonVertices[2];
-
-            mesh->addFace(v0, v1, v2);
-        }
-        else {
-            // Build 2D polygon projecting vertices onto normal plane.
-            // Faces are not necesarily planar, this is for example the case, when the face comes from filling a hole. In such cases
-            // it's much better to use the best fit plane.
-            const Vector3 fn = face->normal();
-
-            Basis basis;
-            basis.buildFrameForDirection(fn);
-
-            polygonPoints.clear();
-            polygonPoints.reserve(edgeCount);
-            polygonAngles.clear();
-            polygonAngles.reserve(edgeCount);
-
-            for (HalfEdge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance())
-            {
-                const HalfEdge::Edge * edge = it.current();
-                const HalfEdge::Vertex * vertex = edge->vertex;
-                polygonVertices.append(vertex->id);
-                
-                Vector2 p;
-                p.x = dot(basis.tangent, vertex->pos);
-                p.y = dot(basis.bitangent, vertex->pos);
-
-                polygonPoints.append(p);
-            }
-            polygonAngles.resize(edgeCount);
-
-            while (polygonVertices.size() > 2) {
-                uint size = polygonVertices.size();
-
-                // Update polygon angles. @@ Update only those that have changed.
-                float minAngle = 2 * PI;
-                uint bestEar = 0; // Use first one if none of them is valid.
-                bool bestIsValid = false;
-                for (uint i = 0; i < size; i++) {
-                    uint i0 = i; 
-                    uint i1 = (i+1) % size; // Use Sean's polygon interation trick.
-                    uint i2 = (i+2) % size;
-
-                    Vector2 p0 = polygonPoints[i0];
-                    Vector2 p1 = polygonPoints[i1];
-                    Vector2 p2 = polygonPoints[i2];
-
-                    float d = clamp(dot(p0-p1, p2-p1) / (length(p0-p1) * length(p2-p1)), -1.0f, 1.0f);
-                    float angle = acosf(d);
-                    
-                    float area = triangleArea(p0, p1, p2);
-                    if (area < 0.0f) angle = 2.0f * PI - angle;
-
-                    polygonAngles[i1] = angle;
-
-                    if (angle < minAngle || !bestIsValid) {
-
-                        // Make sure this is a valid ear, if not, skip this point.
-                        bool valid = true;
-                        for (uint j = 0; j < size; j++) {
-                            if (j == i0 || j == i1 || j == i2) continue;
-                            Vector2 p = polygonPoints[j];
-
-                            if (pointInTriangle(p, p0, p1, p2)) {
-                                valid = false;
-                                break;
-                            }
-                        }
-
-                        if (valid || !bestIsValid) {
-                            minAngle = angle;
-                            bestEar = i1;
-                            bestIsValid = valid;
-                        }
-                    }
-                }
-
-                nvDebugCheck(minAngle <= 2 * PI);
-
-                // Clip best ear:
-
-                uint i0 = (bestEar+size-1) % size;
-                uint i1 = (bestEar+0) % size;
-                uint i2 = (bestEar+1) % size;
-
-                int v0 = polygonVertices[i0];
-                int v1 = polygonVertices[i1];
-                int v2 = polygonVertices[i2];
-                
-                mesh->addFace(v0, v1, v2);
-
-                polygonVertices.removeAt(i1);
-                polygonPoints.removeAt(i1);
-                polygonAngles.removeAt(i1);
-            }
-        }
-
-#if 0
-
-        uint i = 0;
-        while (polygonVertices.size() > 2 && i < polygonVertices.size()) {
-            uint size = polygonVertices.size();
-            uint i0 = (i+0) % size;
-            uint i1 = (i+1) % size;
-            uint i2 = (i+2) % size;
-
-            const HalfEdge::Vertex * v0 = polygonVertices[i0];
-            const HalfEdge::Vertex * v1 = polygonVertices[i1];
-            const HalfEdge::Vertex * v2 = polygonVertices[i2];
-
-            const Vector3 p0 = v0->pos;
-            const Vector3 p1 = v1->pos;
-            const Vector3 p2 = v2->pos;
-
-            const Vector3 e0 = p2 - p1;
-            const Vector3 e1 = p0 - p1;
-
-            // If this ear forms a valid triangle, setup relations, remove v1 and repeat.
-            Vector3 n = cross(e0, e1);
-            float len = dot(fn, n); // = sin(angle)
-            
-            float angle = asin(len);
-
-
-            if (len > 0.0f) {
-                mesh->addFace(v0->id(), v1->id(), v2->id());
-                polygonVertices.removeAt(i1);
-                polygonAngles.removeAt(i1);
-                if (i2 > i1) i2--;
-                // @@ Update angles at i0 and i2
-            }
-            else {
-                i++;
-            }
-        }
-
-        // @@ Create a few degenerate triangles to avoid introducing holes.
-        i = 0;
-        const uint size = polygonVertices.size();
-        while (i < size - 2) {
-            uint i0 = (i+0) % size;
-            uint i1 = (i+1) % size;
-            uint i2 = (i+2) % size;
-
-            const HalfEdge::Vertex * v0 = polygonVertices[i0];
-            const HalfEdge::Vertex * v1 = polygonVertices[i1];
-            const HalfEdge::Vertex * v2 = polygonVertices[i2];
-
-            mesh->addFace(v0->id(), v1->id(), v2->id());
-            i++;
-        }
-#endif
-    }
-
-    mesh->linkBoundary();
-
-    return mesh;
-}
-
-
diff --git a/thirdparty/thekla_atlas/nvmesh/param/Util.h b/thirdparty/thekla_atlas/nvmesh/param/Util.h
deleted file mode 100644
index 774563ac0b..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/param/Util.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// This code is in the public domain -- castano@gmail.com
-
-#include "nvmesh/nvmesh.h"
-
-namespace nv {
-
-    namespace HalfEdge { class Mesh; class Vertex; }
-
-    bool isQuadMesh(const HalfEdge::Mesh * mesh);
-    bool isTriangularMesh(const HalfEdge::Mesh * mesh);
-
-    uint countMeshTriangles(const HalfEdge::Mesh * mesh);
-    const HalfEdge::Vertex * findBoundaryVertex(const HalfEdge::Mesh * mesh);
-
-    HalfEdge::Mesh * unifyVertices(const HalfEdge::Mesh * inputMesh);
-    HalfEdge::Mesh * triangulate(const HalfEdge::Mesh * inputMesh);
-
-} // nv namespace
diff --git a/thirdparty/thekla_atlas/nvmesh/raster/ClippedTriangle.h b/thirdparty/thekla_atlas/nvmesh/raster/ClippedTriangle.h
deleted file mode 100644
index 0947d4851c..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/raster/ClippedTriangle.h
+++ /dev/null
@@ -1,159 +0,0 @@
-// Copyright NVIDIA Corporation 2007 -- Denis Kovacs <den.kovacs@gmail.com>
-
-#pragma once
-#ifndef NV_MESH_CLIPPEDTRIANGLE_H
-#define NV_MESH_CLIPPEDTRIANGLE_H
-
-#include <nvmath/Vector.h>
-
-namespace nv
-{
-
-    class ClippedTriangle
-    {
-    public:
-        ClippedTriangle(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c) 
-        {
-            m_numVertices = 3;
-            m_activeVertexBuffer = 0;
-
-            m_verticesA[0]=a;
-            m_verticesA[1]=b;
-            m_verticesA[2]=c;
-
-            m_vertexBuffers[0] = m_verticesA;
-            m_vertexBuffers[1] = m_verticesB;
-        }
-
-        uint vertexCount()
-        {
-            return m_numVertices;
-        }
-
-        const Vector2 * vertices()
-        {
-            return m_vertexBuffers[m_activeVertexBuffer];
-        }
-
-        inline void clipHorizontalPlane(float offset, float clipdirection) 
-        {
-            Vector2 * v  = m_vertexBuffers[m_activeVertexBuffer];
-            m_activeVertexBuffer ^= 1;
-            Vector2 * v2 = m_vertexBuffers[m_activeVertexBuffer];
-
-            v[m_numVertices] = v[0];
-
-            float dy2,   dy1 = offset - v[0].y;
-            int   dy2in, dy1in = clipdirection*dy1 >= 0;
-            uint  p=0;
-
-            for (uint k=0; k<m_numVertices; k++)
-            {
-                dy2   = offset - v[k+1].y;
-                dy2in = clipdirection*dy2 >= 0;
-
-                if (dy1in) v2[p++] = v[k];
-
-                if ( dy1in + dy2in == 1 ) // not both in/out
-                {
-                    float dx = v[k+1].x - v[k].x;
-                    float dy = v[k+1].y - v[k].y;
-                    v2[p++] = Vector2(v[k].x + dy1*(dx/dy), offset);
-                }
-
-                dy1 = dy2; dy1in = dy2in;
-            }
-            m_numVertices = p;
-
-            //for (uint k=0; k<m_numVertices; k++) printf("(%f, %f)\n", v2[k].x, v2[k].y); printf("\n");
-        }
-
-        inline void clipVerticalPlane(float offset, float clipdirection ) 
-        {
-            Vector2 * v  = m_vertexBuffers[m_activeVertexBuffer];
-            m_activeVertexBuffer ^= 1;
-            Vector2 * v2 = m_vertexBuffers[m_activeVertexBuffer];
-
-            v[m_numVertices] = v[0];
-
-            float dx2,   dx1   = offset - v[0].x;
-            int   dx2in, dx1in = clipdirection*dx1 >= 0;
-            uint  p=0;
-
-            for (uint k=0; k<m_numVertices; k++)
-            {
-                dx2 = offset - v[k+1].x;
-                dx2in = clipdirection*dx2 >= 0;
-
-                if (dx1in) v2[p++] = v[k];
-
-                if ( dx1in + dx2in == 1 ) // not both in/out
-                {
-                    float dx = v[k+1].x - v[k].x;
-                    float dy = v[k+1].y - v[k].y;
-                    v2[p++] = Vector2(offset, v[k].y + dx1*(dy/dx));
-                }
-
-                dx1 = dx2; dx1in = dx2in;
-            }
-            m_numVertices = p;
-
-            //for (uint k=0; k<m_numVertices; k++) printf("(%f, %f)\n", v2[k].x, v2[k].y); printf("\n");
-        }
-
-        void computeAreaCentroid()
-        {
-            Vector2 * v  = m_vertexBuffers[m_activeVertexBuffer];
-            v[m_numVertices] = v[0];
-
-            m_area = 0;
-            float centroidx=0, centroidy=0;
-            for (uint k=0; k<m_numVertices; k++)
-            {
-                // http://local.wasp.uwa.edu.au/~pbourke/geometry/polyarea/
-                float f = v[k].x*v[k+1].y - v[k+1].x*v[k].y;
-                m_area += f;
-                centroidx += f * (v[k].x + v[k+1].x);
-                centroidy += f * (v[k].y + v[k+1].y);
-            }
-            m_area = 0.5f * fabs(m_area);
-            if (m_area==0) {
-                m_centroid = Vector2(0.0f);
-            } else {
-                m_centroid = Vector2(centroidx/(6*m_area), centroidy/(6*m_area));
-            }
-        }
-
-        void clipAABox(float x0, float y0, float x1, float y1)
-        {
-            clipVerticalPlane  ( x0, -1);
-            clipHorizontalPlane( y0, -1);
-            clipVerticalPlane  ( x1,  1);
-            clipHorizontalPlane( y1,  1);
-
-            computeAreaCentroid();
-        }
-
-        Vector2 centroid()
-        {
-            return m_centroid;
-        }
-
-        float area()
-        {
-            return m_area;
-        }
-
-    private:
-        Vector2 m_verticesA[7+1];
-        Vector2 m_verticesB[7+1];
-        Vector2 * m_vertexBuffers[2];
-        uint    m_numVertices;
-        uint    m_activeVertexBuffer;
-        float   m_area;
-        Vector2 m_centroid;
-    };
-
-} // nv namespace
-
-#endif // NV_MESH_CLIPPEDTRIANGLE_H
diff --git a/thirdparty/thekla_atlas/nvmesh/raster/Raster.cpp b/thirdparty/thekla_atlas/nvmesh/raster/Raster.cpp
deleted file mode 100644
index d46b34f045..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/raster/Raster.cpp
+++ /dev/null
@@ -1,626 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-/** @file Raster.cpp
- * @brief Triangle rasterization library using affine interpolation. Not
- * specially optimized, but enough for my purposes.
-**/
-
-#include "nvmesh.h" // pch
-
-#include "Raster.h"
-#include "ClippedTriangle.h"
-
-#include "nvcore/Utils.h" // min, max
-
-#include "nvmath/Vector.inl"
-#include "nvmath/ftoi.h"
-
-
-#define RA_EPSILON		0.00001f
-
-using namespace nv;
-using namespace nv::Raster;
-
-namespace
-{
-    static inline float delta(float bot, float top, float ih)
-    {
-        return (bot - top) * ih;
-    }
-
-    static inline Vector2 delta(Vector2::Arg bot, Vector2::Arg top, float ih)
-    {
-        return (bot - top) * ih;
-    }
-
-    static inline Vector3 delta(Vector3::Arg bot, Vector3::Arg top, float ih)
-    {
-        return (bot - top) * ih;
-    }
-
-    // @@ The implementation in nvmath.h should be equivalent.
-    static inline int iround(float f)
-    {
-        // @@ Optimize this.
-        return int(floorf(f+0.5f));
-        //return int(round(f));
-        //return int(f);
-    }
-
-    /// A triangle vertex. 
-    struct Vertex
-    {
-        Vector2 pos;	// Position.
-        Vector3 tex;	// Texcoord. (Barycentric coordinate)
-    };
-
-
-    /// A triangle for rasterization.
-    struct Triangle
-    {
-        Triangle(Vector2::Arg v0, Vector2::Arg v1, Vector2::Arg v2, Vector3::Arg t0, Vector3::Arg t1, Vector3::Arg t2);
-
-        bool computeDeltas();
-
-        bool draw(const Vector2 & extents, bool enableScissors, SamplingCallback cb, void * param);
-        bool drawAA(const Vector2 & extents, bool enableScissors, SamplingCallback cb, void * param);
-        bool drawC(const Vector2 & extents, bool enableScissors, SamplingCallback cb, void * param);
-        void flipBackface();
-        void computeUnitInwardNormals();
-
-        // Vertices.	
-        Vector2 v1, v2, v3;
-        Vector2 n1, n2, n3; // unit inward normals
-        Vector3 t1, t2, t3;
-
-        // Deltas.
-        Vector3 dx, dy;
-
-        float sign;
-        bool valid;
-    };
-
-
-    /// Triangle ctor.
-    Triangle::Triangle(Vector2::Arg v0, Vector2::Arg v1, Vector2::Arg v2, 
-        Vector3::Arg t0, Vector3::Arg t1, Vector3::Arg t2)
-    {
-        // Init vertices.
-        this->v1 = v0;
-        this->v2 = v2;
-        this->v3 = v1;
-
-        // Set barycentric coordinates.
-        this->t1 = t0;
-        this->t2 = t2;
-        this->t3 = t1;
-
-        // make sure every triangle is front facing.
-        flipBackface();
-
-        // Compute deltas.
-        valid = computeDeltas();
-
-        computeUnitInwardNormals();
-    }
-
-
-    /// Compute texture space deltas.
-    /// This method takes two edge vectors that form a basis, determines the 
-    /// coordinates of the canonic vectors in that basis, and computes the 
-    /// texture gradient that corresponds to those vectors.
-    bool Triangle::computeDeltas()
-    {
-        Vector2 e0 = v3 - v1;
-        Vector2 e1 = v2 - v1;
-
-        Vector3 de0 = t3 - t1;
-        Vector3 de1 = t2 - t1;
-
-        float denom = 1.0f / (e0.y * e1.x - e1.y * e0.x);
-        if (!isFinite(denom)) {
-            return false;
-        }
-
-        float lambda1 = - e1.y * denom;
-        float lambda2 = e0.y * denom;
-        float lambda3 = e1.x * denom;
-        float lambda4 = - e0.x * denom;
-
-        dx = de0 * lambda1 + de1 * lambda2;
-        dy = de0 * lambda3 + de1 * lambda4;
-
-        return true;
-    }
-
-    // compute unit inward normals for each edge.
-    void Triangle::computeUnitInwardNormals()
-    {
-        n1 = v1 - v2; n1 = Vector2(-n1.y, n1.x); n1 = n1 * (1.0f/sqrtf(n1.x*n1.x + n1.y*n1.y));
-        n2 = v2 - v3; n2 = Vector2(-n2.y, n2.x); n2 = n2 * (1.0f/sqrtf(n2.x*n2.x + n2.y*n2.y));
-        n3 = v3 - v1; n3 = Vector2(-n3.y, n3.x); n3 = n3 * (1.0f/sqrtf(n3.x*n3.x + n3.y*n3.y));
-    }
-
-    void Triangle::flipBackface()
-    {
-        // check if triangle is backfacing, if so, swap two vertices
-        if ( ((v3.x-v1.x)*(v2.y-v1.y) - (v3.y-v1.y)*(v2.x-v1.x)) < 0 ) {
-            Vector2 hv=v1; v1=v2; v2=hv; // swap pos
-            Vector3 ht=t1; t1=t2; t2=ht; // swap tex
-        }
-    }
-
-    bool Triangle::draw(const Vector2 & extents, bool enableScissors, SamplingCallback cb, void * param)
-    {
-        // 28.4 fixed-point coordinates
-        const int Y1 = iround(16.0f * v1.y);
-        const int Y2 = iround(16.0f * v2.y);
-        const int Y3 = iround(16.0f * v3.y);
-
-        const int X1 = iround(16.0f * v1.x);
-        const int X2 = iround(16.0f * v2.x);
-        const int X3 = iround(16.0f * v3.x);
-
-        // Deltas
-        const int DX12 = X1 - X2;
-        const int DX23 = X2 - X3;
-        const int DX31 = X3 - X1;
-
-        const int DY12 = Y1 - Y2;
-        const int DY23 = Y2 - Y3;
-        const int DY31 = Y3 - Y1;
-
-        // Fixed-point deltas
-        const int FDX12 = DX12 << 4;
-        const int FDX23 = DX23 << 4;
-        const int FDX31 = DX31 << 4;
-
-        const int FDY12 = DY12 << 4;
-        const int FDY23 = DY23 << 4;
-        const int FDY31 = DY31 << 4;
-
-        int minx, miny, maxx, maxy;
-        if (enableScissors) {
-            int frustumX0 =  0 << 4;
-            int frustumY0 =  0 << 4;
-            int frustumX1 =  (int)extents.x << 4;
-            int frustumY1 =  (int)extents.y << 4;
-
-            // Bounding rectangle
-            minx = (nv::max(min3(X1, X2, X3), frustumX0) + 0xF) >> 4;
-            miny = (nv::max(min3(Y1, Y2, Y3), frustumY0) + 0xF) >> 4;
-            maxx = (nv::min(max3(X1, X2, X3), frustumX1) + 0xF) >> 4;
-            maxy = (nv::min(max3(Y1, Y2, Y3), frustumY1) + 0xF) >> 4;
-        }
-        else {
-            // Bounding rectangle
-            minx = (min3(X1, X2, X3) + 0xF) >> 4;
-            miny = (min3(Y1, Y2, Y3) + 0xF) >> 4;
-            maxx = (max3(X1, X2, X3) + 0xF) >> 4;
-            maxy = (max3(Y1, Y2, Y3) + 0xF) >> 4;
-        }
-
-        // Block size, standard 8x8 (must be power of two)
-        const int q = 8;
-
-        // @@ This won't work when minx,miny are negative. This code path is not used. Leaving as is for now.
-        nvCheck(minx >= 0);
-        nvCheck(miny >= 0);
-
-        // Start in corner of 8x8 block
-        minx &= ~(q - 1);
-        miny &= ~(q - 1);
-
-        // Half-edge constants
-        int C1 = DY12 * X1 - DX12 * Y1;
-        int C2 = DY23 * X2 - DX23 * Y2;
-        int C3 = DY31 * X3 - DX31 * Y3;
-
-        // Correct for fill convention
-        if(DY12 < 0 || (DY12 == 0 && DX12 > 0)) C1++;
-        if(DY23 < 0 || (DY23 == 0 && DX23 > 0)) C2++;
-        if(DY31 < 0 || (DY31 == 0 && DX31 > 0)) C3++;
-
-        // Loop through blocks
-        for(int y = miny; y < maxy; y += q)
-        {
-            for(int x = minx; x < maxx; x += q)
-            {
-                // Corners of block
-                int x0 = x << 4;
-                int x1 = (x + q - 1) << 4;
-                int y0 = y << 4;
-                int y1 = (y + q - 1) << 4;
-
-                // Evaluate half-space functions
-                bool a00 = C1 + DX12 * y0 - DY12 * x0 > 0;
-                bool a10 = C1 + DX12 * y0 - DY12 * x1 > 0;
-                bool a01 = C1 + DX12 * y1 - DY12 * x0 > 0;
-                bool a11 = C1 + DX12 * y1 - DY12 * x1 > 0;
-                int a = (a00 << 0) | (a10 << 1) | (a01 << 2) | (a11 << 3);
-
-                bool b00 = C2 + DX23 * y0 - DY23 * x0 > 0;
-                bool b10 = C2 + DX23 * y0 - DY23 * x1 > 0;
-                bool b01 = C2 + DX23 * y1 - DY23 * x0 > 0;
-                bool b11 = C2 + DX23 * y1 - DY23 * x1 > 0;
-                int b = (b00 << 0) | (b10 << 1) | (b01 << 2) | (b11 << 3);
-
-                bool c00 = C3 + DX31 * y0 - DY31 * x0 > 0;
-                bool c10 = C3 + DX31 * y0 - DY31 * x1 > 0;
-                bool c01 = C3 + DX31 * y1 - DY31 * x0 > 0;
-                bool c11 = C3 + DX31 * y1 - DY31 * x1 > 0;
-                int c = (c00 << 0) | (c10 << 1) | (c01 << 2) | (c11 << 3);
-
-                // Skip block when outside an edge
-                if(a == 0x0 || b == 0x0 || c == 0x0) continue;		
-
-                // Accept whole block when totally covered
-                if(a == 0xF && b == 0xF && c == 0xF)
-                {
-                    Vector3 texRow = t1 + dy*(y0 - v1.y) + dx*(x0 - v1.x);
-
-                    for(int iy = y; iy < y + q; iy++)
-                    {
-                        Vector3 tex = texRow;
-                        for(int ix = x; ix < x + q; ix++)
-                        {
-                            //Vector3 tex = t1 + dx * (ix - v1.x) + dy * (iy - v1.y);
-                            if (!cb(param, ix, iy, tex, dx, dy, 1.0)) {
-                                // early out.
-                                return false;
-                            }
-                            tex += dx;
-                        }
-                        texRow += dy;
-                    }
-                }
-                else // Partially covered block
-                {
-                    int CY1 = C1 + DX12 * y0 - DY12 * x0;
-                    int CY2 = C2 + DX23 * y0 - DY23 * x0;
-                    int CY3 = C3 + DX31 * y0 - DY31 * x0;
-                    Vector3 texRow = t1 + dy*(y0 - v1.y) + dx*(x0 - v1.x);
-
-                    for(int iy = y; iy < y + q; iy++)
-                    {
-                        int CX1 = CY1;
-                        int CX2 = CY2;
-                        int CX3 = CY3;
-                        Vector3 tex = texRow;
-
-                        for(int ix = x; ix < x + q; ix++)
-                        {
-                            if(CX1 > 0 && CX2 > 0 && CX3 > 0)
-                            {
-                                if (!cb(param, ix, iy, tex, dx, dy, 1.0))
-                                {
-                                    // early out.
-                                    return false;
-                                }
-                            }
-
-                            CX1 -= FDY12;
-                            CX2 -= FDY23;
-                            CX3 -= FDY31;
-                            tex += dx;
-                        }
-
-                        CY1 += FDX12;
-                        CY2 += FDX23;
-                        CY3 += FDX31;
-                        texRow += dy;
-                    }
-                }
-            }
-        }
-
-        return true;
-    }
-
-
-#define PX_INSIDE    1.0f/sqrt(2.0f)
-#define PX_OUTSIDE  -1.0f/sqrt(2.0f)
-
-#define BK_SIZE 8
-#define BK_INSIDE   sqrt(BK_SIZE*BK_SIZE/2.0f)
-#define BK_OUTSIDE -sqrt(BK_SIZE*BK_SIZE/2.0f)
-
-    // extents has to be multiple of BK_SIZE!!
-    bool Triangle::drawAA(const Vector2 & extents, bool enableScissors, SamplingCallback cb, void * param)
-    {
-        float minx, miny, maxx, maxy;
-        if (enableScissors) {
-            // Bounding rectangle
-            minx = floorf(max(min3(v1.x, v2.x, v3.x), 0.0f));
-            miny = floorf(max(min3(v1.y, v2.y, v3.y), 0.0f));
-            maxx = ceilf( min(max3(v1.x, v2.x, v3.x), extents.x-1.0f));
-            maxy = ceilf( min(max3(v1.y, v2.y, v3.y), extents.y-1.0f));
-        }
-        else {
-            // Bounding rectangle
-            minx = floorf(min3(v1.x, v2.x, v3.x));
-            miny = floorf(min3(v1.y, v2.y, v3.y));
-            maxx = ceilf( max3(v1.x, v2.x, v3.x));
-            maxy = ceilf( max3(v1.y, v2.y, v3.y));
-        }
-
-        // There's no reason to align the blocks to the viewport, instead we align them to the origin of the triangle bounds.
-        minx = floorf(minx);
-        miny = floorf(miny);
-        //minx = (float)(((int)minx) & (~((int)BK_SIZE - 1))); // align to blocksize (we don't need to worry about blocks partially out of viewport)
-        //miny = (float)(((int)miny) & (~((int)BK_SIZE - 1)));
-
-        minx += 0.5; miny +=0.5;  // sampling at texel centers!
-        maxx += 0.5; maxy +=0.5; 
-
-        // Half-edge constants
-        float C1 = n1.x * (-v1.x) + n1.y * (-v1.y);
-        float C2 = n2.x * (-v2.x) + n2.y * (-v2.y);
-        float C3 = n3.x * (-v3.x) + n3.y * (-v3.y);
-
-        // Loop through blocks
-        for(float y0 = miny; y0 <= maxy; y0 += BK_SIZE)
-        {
-            for(float x0 = minx; x0 <= maxx; x0 += BK_SIZE)
-            {
-                // Corners of block
-                float xc = (x0 + (BK_SIZE-1)/2.0f);
-                float yc = (y0 + (BK_SIZE-1)/2.0f);
-
-                // Evaluate half-space functions
-                float aC = C1 + n1.x * xc + n1.y * yc;
-                float bC = C2 + n2.x * xc + n2.y * yc;
-                float cC = C3 + n3.x * xc + n3.y * yc;
-
-                // Skip block when outside an edge
-                if( (aC <= BK_OUTSIDE) || (bC <= BK_OUTSIDE) || (cC <= BK_OUTSIDE) ) continue;
-
-                // Accept whole block when totally covered
-                if( (aC >= BK_INSIDE) && (bC >= BK_INSIDE) && (cC >= BK_INSIDE) )
-                {
-                    Vector3 texRow = t1 + dy*(y0 - v1.y) + dx*(x0 - v1.x);
-
-                    for (float y = y0; y < y0 + BK_SIZE; y++)
-                    {
-                        Vector3 tex = texRow;
-                        for(float x = x0; x < x0 + BK_SIZE; x++)
-                        {
-                            if (!cb(param, (int)x, (int)y, tex, dx, dy, 1.0f))
-                            {
-                                return false;
-                            }
-                            tex += dx;
-                        }
-                        texRow += dy;
-                    }
-                }
-                else // Partially covered block
-                {
-                    float CY1 = C1 + n1.x * x0 + n1.y * y0;
-                    float CY2 = C2 + n2.x * x0 + n2.y * y0;
-                    float CY3 = C3 + n3.x * x0 + n3.y * y0;
-                    Vector3 texRow = t1 + dy*(y0 - v1.y) + dx*(x0 - v1.x);	                  	
-
-                    for(float y = y0; y < y0 + BK_SIZE; y++) // @@ This is not clipping to scissor rectangle correctly.
-                    {
-                        float CX1 = CY1;
-                        float CX2 = CY2;
-                        float CX3 = CY3;
-                        Vector3 tex = texRow;
-
-                        for (float x = x0; x < x0 + BK_SIZE; x++)   // @@ This is not clipping to scissor rectangle correctly.
-                        {
-                            if (CX1 >= PX_INSIDE && CX2 >= PX_INSIDE && CX3 >= PX_INSIDE) 
-                            {
-                                // pixel completely covered
-                                Vector3 tex = t1 + dx * (x - v1.x) + dy * (y - v1.y);
-                                if (!cb(param, (int)x, (int)y, tex, dx, dy, 1.0f))
-                                {
-                                    return false;
-                                }
-                            }
-                            else if ((CX1 >= PX_OUTSIDE) && (CX2 >= PX_OUTSIDE) && (CX3 >= PX_OUTSIDE))
-                            {
-                                // triangle partially covers pixel. do clipping.
-                                ClippedTriangle ct(v1-Vector2(x,y), v2-Vector2(x,y), v3-Vector2(x,y));
-                                ct.clipAABox(-0.5, -0.5, 0.5, 0.5);
-                                Vector2 centroid = ct.centroid();
-                                float area = ct.area();
-                                if (area > 0.0f)
-                                {
-                                    Vector3 texCent = tex - dx*centroid.x - dy*centroid.y;
-                                    //nvCheck(texCent.x >= -0.1f && texCent.x <= 1.1f); // @@ Centroid is not very exact...
-                                    //nvCheck(texCent.y >= -0.1f && texCent.y <= 1.1f);
-                                    //nvCheck(texCent.z >= -0.1f && texCent.z <= 1.1f);
-                                    //Vector3 texCent2 = t1 + dx * (x - v1.x) + dy * (y - v1.y);
-                                    if (!cb(param, (int)x, (int)y, texCent, dx, dy, area))
-                                    {
-                                        return false;
-                                    }
-                                }
-                            }
-
-                            CX1 += n1.x;
-                            CX2 += n2.x;
-                            CX3 += n3.x;
-                            tex += dx;
-                        }
-
-                        CY1 += n1.y;
-                        CY2 += n2.y;
-                        CY3 += n3.y;
-                        texRow += dy;
-                    }
-                }
-            }
-        }
-
-        return true;
-    }
-
-} // namespace
-
-
-/// Process the given triangle.
-bool nv::Raster::drawTriangle(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[3], SamplingCallback cb, void * param)
-{
-    Triangle tri(v[0], v[1], v[2], Vector3(1, 0, 0), Vector3(0, 1, 0), Vector3(0, 0, 1));
-    
-    // @@ It would be nice to have a conservative drawing mode that enlarges the triangle extents by one texel and is able to handle degenerate triangles.
-    // @@ Maybe the simplest thing to do would be raster triangle edges.
-
-    if (tri.valid) {
-        if (mode == Mode_Antialiased) {
-            return tri.drawAA(extents, enableScissors, cb, param);
-        } 
-        if (mode == Mode_Nearest) {
-            return tri.draw(extents, enableScissors, cb, param);
-        }
-    }
-
-    return true;
-}
-
-inline static float triangleArea(Vector2::Arg v1, Vector2::Arg v2, Vector2::Arg v3)
-{
-    return 0.5f * (v3.x * v1.y + v1.x * v2.y + v2.x * v3.y - v2.x * v1.y - v3.x * v2.y - v1.x * v3.y);
-}
-
-/// Process the given quad.
-bool nv::Raster::drawQuad(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[4], SamplingCallback cb, void * param)
-{
-    bool sign0 = triangleArea(v[0], v[1], v[2]) > 0.0f;
-    bool sign1 = triangleArea(v[0], v[2], v[3]) > 0.0f;
-
-    // Divide the quad into two non overlapping triangles.
-    if (sign0 == sign1) {
-        Triangle tri0(v[0], v[1], v[2], Vector3(0,0,0), Vector3(1,0,0), Vector3(1,1,0));
-        Triangle tri1(v[0], v[2], v[3], Vector3(0,0,0), Vector3(1,1,0), Vector3(0,1,0));
-
-        if (tri0.valid && tri1.valid) {
-            if (mode == Mode_Antialiased) {
-                return tri0.drawAA(extents, enableScissors, cb, param) && tri1.drawAA(extents, enableScissors, cb, param);
-            } else {
-                return tri0.draw(extents, enableScissors, cb, param) && tri1.draw(extents, enableScissors, cb, param);
-            }
-        }
-    }
-    else
-    {
-        Triangle tri0(v[0], v[1], v[3], Vector3(0,0,0), Vector3(1,0,0), Vector3(0,1,0));
-        Triangle tri1(v[1], v[2], v[3], Vector3(1,0,0), Vector3(1,1,0), Vector3(0,1,0));
-
-        if (tri0.valid && tri1.valid) {
-            if (mode == Mode_Antialiased) {
-                return tri0.drawAA(extents, enableScissors, cb, param) && tri1.drawAA(extents, enableScissors, cb, param);
-            } else {
-                return tri0.draw(extents, enableScissors, cb, param) && tri1.draw(extents, enableScissors, cb, param);
-            }
-        }
-    }
-
-    return true;
-}
-
-
-static bool drawPoint(const Vector2 & p, const Vector2 v[2], LineSamplingCallback cb, void * param) {
-
-    int x = ftoi_round(p.x);
-    int y = ftoi_round(p.y);
-    Vector2 ip = Vector2(float(x) + 0.5f, float(y) + 0.5f);
-
-    float t;
-
-    // Return minimum distance between line segment vw and point p
-    Vector2 dv = v[1] - v[0];
-    const float l2 = nv::lengthSquared(dv);  // i.e. |w-v|^2 -  avoid a sqrt
-    if (l2 == 0.0) {
-        t = 0;                  // v0 == v1 case
-    }
-    else {
-        // Consider the line extending the segment, parameterized as v + t (w - v).
-        // We find projection of point p onto the line. 
-        // It falls where t = [(p-v) . (w-v)] / |w-v|^2
-        t = dot(ip - v[0], dv) / l2;
-        if (t < 0.0) {
-            t = 0;                      // Beyond the 'v0' end of the segment
-        }
-        else if (t > 1.0) {
-            t = 1;                      // Beyond the 'v1' end of the segment
-        }
-    }
-    
-    Vector2 projection = v[0] + t * dv; // Projection falls on the segment
-
-    float d = distance(ip, projection);
-
-    return cb(param, x, y, t, saturate(1-d));
-}
-
-
-void nv::Raster::drawLine(bool antialias, Vector2::Arg extents, bool enableScissors, const Vector2 v[2], LineSamplingCallback cb, void * param)
-{
-    nvCheck(antialias == true);         // @@ Not implemented.
-    //nvCheck(enableScissors == false); // @@ Not implemented.
-
-    // Very crappy DDA implementation.
-
-    Vector2 p = v[0];
-    Vector2 dp, dpdy;
-
-    float dx = v[1].x - v[0].x;
-    float dy = v[1].y - v[0].y;
-    int n;
-
-    // Degenerate line.
-    if (dx == 0 && dy == 0) return;
-
-    if (fabsf(dx) >= fabsf(dy)) {
-        n = iround(fabsf(dx));
-        dp.x = dx / fabsf(dx);
-        dp.y = dy / fabsf(dx);
-        nvDebugCheck(fabsf(dp.y) <= 1.0f);
-        dpdy.x = 0;
-        dpdy.y = 1;
-    }
-    else {
-        n = iround(fabs(dy));
-        dp.x = dx / fabsf(dy);
-        dp.y = dy / fabsf(dy);
-        nvDebugCheck(fabsf(dp.x) <= 1.0f);
-        dpdy.x = 1;
-        dpdy.y = 0;
-    }
-
-    for (int i = 0; i <= n; i++) {
-        drawPoint(p, v, cb, param);
-        drawPoint(p + dpdy, v, cb, param);
-        drawPoint(p - dpdy, v, cb, param);
-        p += dp;
-    }
-}
-
-
-// Draw vertical or horizontal segments. For degenerate triangles.
-/*bool nv::Raster::drawSegment(Vector2::Arg extents, bool enableScissors, const Vector2 v[2], LineSamplingCallback cb, void * param)
-{
-    nvCheck(enableScissors == false);
-
-    
-    if (v[0].x == v[1].x) {         // Vertical segment.
-        
-    }
-    else if (v[0].y == v[1].y) {    // Horizontal segment.
-        int y = ftoi_round(v[0].y);
-        int x0 = ftoi_floor(v[0].x);
-        int x1 = ftoi_floor(v[0].x);
-
-        for (int x = x0; x <= x1; x++) {
-
-            cb(param, x, y, t, 
-        }
-    }
-
-    return false; // Not a valid segment.
-}
-*/
diff --git a/thirdparty/thekla_atlas/nvmesh/raster/Raster.h b/thirdparty/thekla_atlas/nvmesh/raster/Raster.h
deleted file mode 100644
index 05af2ddb00..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/raster/Raster.h
+++ /dev/null
@@ -1,49 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#pragma once
-#ifndef NV_MESH_RASTER_H
-#define NV_MESH_RASTER_H
-
-/** @file Raster.h
- * @brief Rasterization library.
- *
- * This is just a standard scanline rasterizer that I took from one of my old
- * projects. The perspective correction wasn't necessary so I just removed it.
-**/
-
-#include "nvmath/Vector.h"
-#include "nvmesh/nvmesh.h"
-
-namespace nv
-{
-
-    namespace Raster 
-    {
-        enum Mode {
-            Mode_Nearest,
-            Mode_Antialiased,
-            //Mode_Conservative
-        };
-
-
-        /// A callback to sample the environment. Return false to terminate rasterization.
-        typedef bool (NV_CDECL * SamplingCallback)(void * param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
-
-        // Process the given triangle. Returns false if rasterization was interrupted by the callback.
-        NVMESH_API bool drawTriangle(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[3], SamplingCallback cb, void * param);
-
-        // Process the given quad. Returns false if rasterization was interrupted by the callback.
-        NVMESH_API bool drawQuad(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[4], SamplingCallback cb, void * param);
-
-        typedef bool (NV_CDECL * LineSamplingCallback)(void * param, int x, int y, float t, float d);    // t is the position along the segment, d is the distance to the line.
-
-        // Process the given line.
-        NVMESH_API void drawLine(bool antialias, Vector2::Arg extents, bool enableScissors, const Vector2 v[2], LineSamplingCallback cb, void * param);
-
-        // Draw vertical or horizontal segments. For degenerate triangles.
-        //NVMESH_API void drawSegment(Vector2::Arg extents, bool enableScissors, const Vector2 v[2], SamplingCallback cb, void * param);
-    }
-}
-
-
-#endif // NV_MESH_RASTER_H
diff --git a/thirdparty/thekla_atlas/nvmesh/weld/Snap.cpp b/thirdparty/thekla_atlas/nvmesh/weld/Snap.cpp
deleted file mode 100644
index b6bff4d83d..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/weld/Snap.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#include <nvcore/RadixSort.h>
-
-#include <nvmesh/weld/Snap.h>
-#include <nvmesh/TriMesh.h>
-#include <nvmesh/geometry/Bounds.h>
-
-using namespace nv;
-
-namespace {
-	
-	// Snap the given vertices.
-	void Snap(TriMesh::Vertex & a, TriMesh::Vertex & b, float texThreshold, float norThreshold)
-	{
-		a.pos = b.pos = (a.pos + b.pos) * 0.5f;
-		
-		if (equal(a.tex.x, b.tex.x, texThreshold) && equal(a.tex.y, b.tex.y, texThreshold)) {
-			b.tex = a.tex = (a.tex + b.tex) * 0.5f;
-		}
-		
-		if (equal(a.nor.x, b.nor.x, norThreshold) && equal(a.nor.y, b.nor.y, norThreshold) && equal(a.nor.z, b.nor.z, norThreshold)) {
-			b.nor = a.nor = (a.nor + b.nor) * 0.5f;
-		}
-	};
-
-} // nv namespace
-
-uint nv::SnapVertices(TriMesh * mesh, float posThreshold, float texThreshold, float norThreshold)
-{
-	nvDebug("--- Snapping vertices.\n");
-	
-	// Determine largest axis.
-	Box box = MeshBounds::box(mesh);
-	Vector3 extents = box.extents();
-
-	int axis = 2;
-	if( extents.x > extents.y ) {
-		if( extents.x > extents.z ) {
-			axis = 0;
-		}
-	}
-	else if(extents.y > extents.z) {
-		axis = 1;
-	}
-	
-	// @@ Use diagonal instead!
-	
-
-	// Sort vertices according to the largest axis.
-	const uint vertexCount = mesh->vertexCount();
-	nvCheck(vertexCount > 2); // Must have at least two vertices.
-
-	// Get pos channel.
-	//PiMesh::Channel * pos_channel = mesh->GetChannel(mesh->FindChannel(VS_POS));
-	//nvCheck( pos_channel != NULL );
-
-	//const PiArray<Vec4> & pos_array = pos_channel->data;
-
-	Array<float> distArray;
-	distArray.resize(vertexCount);
-
-	for(uint v = 0; v < vertexCount; v++) {
-		if (axis == 0) distArray[v] = mesh->vertexAt(v).pos.x;
-		else if (axis == 1) distArray[v] = mesh->vertexAt(v).pos.y;
-		else distArray[v] = mesh->vertexAt(v).pos.z;
-	}
-
-	RadixSort radix;
-	const uint * xrefs = radix.sort(distArray.buffer(), distArray.count()).ranks();
-	nvCheck(xrefs != NULL);
-
-	uint snapCount = 0;
-	for(uint v = 0; v < vertexCount-1; v++) {
-		for(uint n = v+1; n < vertexCount; n++) {
-			nvDebugCheck( distArray[xrefs[v]] <= distArray[xrefs[n]] );
-			
-			if (fabs(distArray[xrefs[n]] - distArray[xrefs[v]]) > posThreshold) {
-				break;
-			}
-			
-			TriMesh::Vertex & v0 = mesh->vertexAt(xrefs[v]);
-			TriMesh::Vertex & v1 = mesh->vertexAt(xrefs[n]);
-			
-			const float dist = length(v0.pos - v1.pos);
-			
-			if (dist <= posThreshold) {
-				Snap(v0, v1, texThreshold, norThreshold);
-				snapCount++;
-			}
-		}
-	}
-
-	// @@ todo: debug, make sure that the distance between vertices is now >= threshold
-
-	nvDebug("---   %u vertices snapped\n", snapCount);
-
-	return snapCount;
-};
-
diff --git a/thirdparty/thekla_atlas/nvmesh/weld/Snap.h b/thirdparty/thekla_atlas/nvmesh/weld/Snap.h
deleted file mode 100644
index 8e0566cda3..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/weld/Snap.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#ifndef NV_MESH_SNAP_H
-#define NV_MESH_SNAP_H
-
-#include <nvmesh/nvmesh.h>
-#include <nvmath/nvmath.h>
-
-namespace nv
-{
-	class TriMesh;
-
-	NVMESH_API uint SnapVertices(TriMesh * mesh, float posThreshold=NV_EPSILON, float texThreshold=1.0f/1024, float norThreshold=NV_NORMAL_EPSILON);
-
-} // nv namespace
-
-
-#endif // NV_MESH_SNAP_H
diff --git a/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp b/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp
deleted file mode 100644
index 2ba4dcae18..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-// Copyright NVIDIA Corporation 2006 -- Ignacio Castano <icastano@nvidia.com>
-
-#include <nvmesh/TriMesh.h>
-#include <nvmesh/QuadTriMesh.h>
-
-#include <nvmesh/weld/VertexWeld.h>
-#include <nvmesh/weld/Weld.h>
-
-using namespace nv;
-
-// Weld trimesh vertices
-void nv::WeldVertices(TriMesh * mesh)
-{
-	nvDebug("--- Welding vertices.\n");
-	
-	nvCheck(mesh != NULL);
-
-	uint count = mesh->vertexCount();
-	Array<uint> xrefs;
-	Weld<TriMesh::Vertex> weld;
-	uint newCount = weld(mesh->vertices(), xrefs);
-	
-	nvDebug("---   %d vertices welded\n", count - newCount);
-	
-	
-	// Remap faces.
-	const uint faceCount = mesh->faceCount();
-	for(uint f = 0; f < faceCount; f++)
-	{
-		TriMesh::Face & face = mesh->faceAt(f);
-		face.v[0] = xrefs[face.v[0]];
-		face.v[1] = xrefs[face.v[1]];
-		face.v[2] = xrefs[face.v[2]];
-	}
-}
-
-
-// Weld trimesh vertices
-void nv::WeldVertices(QuadTriMesh * mesh)
-{
-	nvDebug("--- Welding vertices.\n");
-	
-	nvCheck(mesh != NULL);
-
-	uint  count = mesh->vertexCount();
-	Array<uint> xrefs;
-	Weld<TriMesh::Vertex> weld;
-	uint newCount = weld(mesh->vertices(), xrefs);
-	
-	nvDebug("---   %d vertices welded\n", count - newCount);
-	
-	// Remap faces.
-	const uint faceCount = mesh->faceCount();
-	for(uint f = 0; f < faceCount; f++)
-	{
-		QuadTriMesh::Face & face = mesh->faceAt(f);
-		face.v[0] = xrefs[face.v[0]];
-		face.v[1] = xrefs[face.v[1]];
-		face.v[2] = xrefs[face.v[2]];
-		
-		if (face.isQuadFace())
-		{
-			face.v[3] = xrefs[face.v[3]];
-		}
-	}
-}
-
-
-
-// OLD code
-
-#if 0
-
-namespace {
-
-struct VertexInfo {
-	uint id;			///< Original vertex id.
-	uint normal_face_group;
-	uint tangent_face_group;
-	uint material;
-	uint chart;
-};
-
-
-/// VertexInfo hash functor.
-struct VertexHash : public IHashFunctor<VertexInfo> {
-	VertexHash(PiMeshPtr m) : mesh(m) {
-		uint c = mesh->FindChannel(VS_POS);
-		piCheck(c != PI_NULL_INDEX);
-		channel = mesh->GetChannel(c);
-		piCheck(channel != NULL);
-	}
-
-	uint32 operator () (const VertexInfo & v) const {
-		return channel->data[v.id].GetHash();
-	}
-	
-private:
-	PiMeshPtr mesh;
-	PiMesh::Channel * channel;
-};
-
-
-/// VertexInfo comparator.
-struct VertexEqual : public IBinaryPredicate<VertexInfo> {
-	VertexEqual(PiMeshPtr m) : mesh(m) {}
-	
-	bool operator () (const VertexInfo & a, const VertexInfo & b) const {
-
-		bool equal = a.normal_face_group == b.normal_face_group && 
-			a.tangent_face_group == b.tangent_face_group &&
-			a.material == b.material && 
-			a.chart == b.chart;
-		
-		// Split vertex shared by different face types.
-		if( !equal ) {
-			return false;
-		}
-		
-		// They were the same vertex.
-		if( a.id == b.id ) {
-			return true;
-		}
-		
-		// Vertex equal if all the channels are equal.
-		return mesh->IsVertexEqual(a.id, b.id);
-	}
-
-private:	
-	PiMeshPtr mesh;
-};
-
-} // namespace
-
-
-/// Weld the vertices.
-void PiMeshVertexWeld::WeldVertices(const PiMeshSmoothGroup * mesh_smooth_group, 
-	const PiMeshMaterial * mesh_material, const PiMeshAtlas * mesh_atlas ) 
-{
-	piDebug( "--- Welding vertices:\n" );
-
-	piDebug( "---   Expand mesh vertices.\n" );
-	PiArray<VertexInfo> vertex_array;
-
-	const uint face_num = mesh->GetFaceNum();
-	const uint vertex_max = face_num * 3;
-	vertex_array.Resize( vertex_max );
-
-	for(uint i = 0; i < vertex_max; i++) {
-
-		uint f = i/3;
-	
-		const PiMesh::Face & face = mesh->GetFace(f);
-		vertex_array[i].id = face.v[i%3];
-
-		// Reset face attributes.
-		vertex_array[i].normal_face_group = PI_NULL_INDEX;
-		vertex_array[i].tangent_face_group = PI_NULL_INDEX;
-		vertex_array[i].material = PI_NULL_INDEX;
-		vertex_array[i].chart = PI_NULL_INDEX;
-		
-		// Set available attributes.
-		if( mesh_smooth_group != NULL ) {
-			if( mesh_smooth_group->HasNormalFaceGroups() ) {
-				vertex_array[i].normal_face_group = mesh_smooth_group->GetNormalFaceGroup( f );
-			}
-			if( mesh_smooth_group->HasTangentFaceGroups() ) {
-				vertex_array[i].tangent_face_group = mesh_smooth_group->GetTangentFaceGroup( f );
-			}
-		}
-		if( mesh_material != NULL ) {
-			vertex_array[i].material = mesh_material->GetFaceMaterial( f );
-		}
-		if( mesh_atlas != NULL && mesh_atlas->HasCharts() ) {
-			vertex_array[i].chart = mesh_atlas->GetFaceChart( f );
-		}
-	}
-	piDebug( "---   %d vertices.\n", vertex_max );
-
-	piDebug( "---   Collapse vertices.\n" );
-
-	uint * xrefs = new uint[vertex_max];
-	VertexHash hash(mesh);
-	VertexEqual equal(mesh);
-	const uint vertex_num = Weld( vertex_array, xrefs, hash, equal );
-	piCheck(vertex_num <= vertex_max);
-	piDebug( "---   %d vertices.\n", vertex_num );	
-	
-	// Remap face indices.
-	piDebug( "---   Remapping face indices.\n" );
-	mesh->RemapFaceIndices(vertex_max, xrefs);
-
-
-	// Overwrite xrefs to map new vertices to old vertices.
-	for(uint v = 0; v < vertex_num; v++) {
-		xrefs[v] = vertex_array[v].id;
-	}
-	
-	// Update vertex order.
-	mesh->ReorderVertices(vertex_num, xrefs);
-
-	delete [] xrefs;
-}
-
-#endif // 0
diff --git a/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.h b/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.h
deleted file mode 100644
index 1dc2e4ba4d..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/weld/VertexWeld.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright NVIDIA Corporation 2006 -- Ignacio Castano <icastano@nvidia.com>
-
-#ifndef NV_MESH_VERTEXWELD_H
-#define NV_MESH_VERTEXWELD_H
-
-#include <nvmesh/nvmesh.h>
-
-namespace nv
-{
-	class TriMesh;
-	class QuadMesh;
-
-	NVMESH_API void WeldVertices(TriMesh * mesh);
-	NVMESH_API void WeldVertices(QuadTriMesh * mesh);
-
-} // nv namespace
-
-
-#endif // NV_MESH_VERTEXWELD_H
diff --git a/thirdparty/thekla_atlas/nvmesh/weld/Weld.h b/thirdparty/thekla_atlas/nvmesh/weld/Weld.h
deleted file mode 100644
index e615539461..0000000000
--- a/thirdparty/thekla_atlas/nvmesh/weld/Weld.h
+++ /dev/null
@@ -1,171 +0,0 @@
-// This code is in the public domain -- castanyo@yahoo.es
-
-#ifndef NV_MESH_WELD_H
-#define NV_MESH_WELD_H
-
-#include "nvcore/Array.h"
-#include "nvcore/Hash.h"
-#include "nvcore/Utils.h" // nextPowerOfTwo
-
-#include <string.h> // for memset, memcmp, memcpy
-
-// Weld function to remove array duplicates in linear time using hashing.
-
-namespace nv
-{
-
-/// Generic welding routine. This function welds the elements of the array p
-/// and returns the cross references in the xrefs array. To compare the elements
-/// it uses the given hash and equal functors.
-/// 
-/// This code is based on the ideas of Ville Miettinen and Pierre Terdiman.
-template <class T, class H=Hash<T>, class E=Equal<T> >
-struct Weld
-{
-	// xrefs maps old elements to new elements
-	uint operator()(Array<T> & p, Array<uint> & xrefs)
-	{
-		const uint N = p.size();							// # of input vertices.
-		uint outputCount = 0;								// # of output vertices
-		uint hashSize = nextPowerOfTwo(N);					// size of the hash table
-		uint * hashTable = new uint[hashSize + N];			// hash table + linked list
-		uint * next = hashTable + hashSize;					// use bottom part as linked list
-
-		xrefs.resize(N);
-		memset( hashTable, NIL, hashSize*sizeof(uint) );	// init hash table (NIL = 0xFFFFFFFF so memset works)
-
-		H hash;
-		E equal;
-		for (uint i = 0; i < N; i++)
-		{
-			const T & e = p[i];
-			uint32 hashValue = hash(e) & (hashSize-1);
-			uint offset = hashTable[hashValue];
-
-			// traverse linked list
-			while( offset != NIL && !equal(p[offset], e) )
-			{
-				offset = next[offset];
-			}
-
-			xrefs[i] = offset;
-
-			// no match found - copy vertex & add to hash
-			if( offset == NIL )
-			{
-				// save xref
-				xrefs[i] = outputCount;
-
-				// copy element
-				p[outputCount] = e;
-
-				// link to hash table
-				next[outputCount] = hashTable[hashValue];
-
-				// update hash heads and increase output counter
-				hashTable[hashValue] = outputCount++;
-			}
-		}
-
-		// cleanup
-		delete [] hashTable;
-
-		p.resize(outputCount);
-		
-		// number of output vertices
-		return outputCount;
-	}
-};
-
-
-/// Reorder the given array accoding to the indices given in xrefs.
-template <class T>
-void reorderArray(Array<T> & array, const Array<uint> & xrefs)
-{
-	const uint count = xrefs.count();
-	Array<T> new_array;
-    new_array.resize(count);
-
-	for(uint i = 0; i < count; i++) {
-		new_array[i] = array[xrefs[i]];
-	}
-
-	swap(array, new_array);
-}
-
-/// Reverse the given array so that new indices point to old indices.
-inline void reverseXRefs(Array<uint> & xrefs, uint count)
-{
-	Array<uint> new_xrefs;
-    new_xrefs.resize(count);
-	
-	for(uint i = 0; i < xrefs.count(); i++) {
-		new_xrefs[xrefs[i]] = i;
-	}
-	
-	swap(xrefs, new_xrefs);
-}
-
-
-
-//
-struct WeldN
-{
-    uint vertexSize;
-
-    WeldN(uint n) : vertexSize(n) {}
-
-	// xrefs maps old elements to new elements
-	uint operator()(uint8 * ptr, uint N, Array<uint> & xrefs)
-	{
-		uint outputCount = 0;								// # of output vertices
-		uint hashSize = nextPowerOfTwo(N);					// size of the hash table
-		uint * hashTable = new uint[hashSize + N];			// hash table + linked list
-		uint * next = hashTable + hashSize;					// use bottom part as linked list
-
-		xrefs.resize(N);
-		memset( hashTable, NIL, hashSize*sizeof(uint) );	// init hash table (NIL = 0xFFFFFFFF so memset works)
-
-		for (uint i = 0; i < N; i++)
-		{
-			const uint8 * vertex = ptr + i * vertexSize;
-			uint32 hashValue = sdbmHash(vertex, vertexSize) & (hashSize-1);
-			uint offset = hashTable[hashValue];
-
-			// traverse linked list
-			while (offset != NIL && memcmp(ptr + offset * vertexSize, vertex, vertexSize) != 0)
-			{
-				offset = next[offset];
-			}
-
-			xrefs[i] = offset;
-
-			// no match found - copy vertex & add to hash
-			if (offset == NIL)
-			{
-				// save xref
-				xrefs[i] = outputCount;
-
-				// copy element
-                memcpy(ptr + outputCount * vertexSize, vertex, vertexSize);
-
-				// link to hash table
-				next[outputCount] = hashTable[hashValue];
-
-				// update hash heads and increase output counter
-				hashTable[hashValue] = outputCount++;
-			}
-		}
-
-		// cleanup
-		delete [] hashTable;
-
-		// number of output vertices
-		return outputCount;
-	}
-};
-
-
-} // nv namespace
-
-#endif // NV_MESH_WELD_H
diff --git a/thirdparty/thekla_atlas/poshlib/posh.c b/thirdparty/thekla_atlas/poshlib/posh.c
deleted file mode 100644
index bd3fcc66ea..0000000000
--- a/thirdparty/thekla_atlas/poshlib/posh.c
+++ /dev/null
@@ -1,1006 +0,0 @@
-/*
-LICENSE:
-
-Copyright (c) 2004, Brian Hook
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-
-    * The names of this package'ss contributors contributors may not
-      be used to endorse or promote products derived from this
-      software without specific prior written permission.
-
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-/** 
- @file    posh.c
- @author  Brian Hook
- @date    2002
- @brief   Portable Open Source Harness primary source file
-*/
-#include "posh.h"
-
-#if !defined FORCE_DOXYGEN
-
-#if !defined POSH_NO_FLOAT
-#  define POSH_FLOAT_STRING "enabled"
-#else
-#  define POSH_FLOAT_STRING "disabled"
-#endif
-
-#if defined POSH_64BIT_INTEGER
-#  define POSH_64BIT_INTEGER_STRING "yes"
-#else
-#  define POSH_64BIT_INTEGER_STRING "no"
-#endif
-
-#if defined POSH_64BIT_POINTER
-#  define POSH_POINTER_STRING "64-bits"
-#else
-#  define POSH_POINTER_STRING "32-bits"
-#endif
-
-#if defined POSH_LITTLE_ENDIAN
-#  define IS_BIG_ENDIAN    0
-
-#  define NATIVE16  POSH_LittleU16
-#  define NATIVE32  POSH_LittleU32
-#  define NATIVE64  POSH_LittleU64
-#  define FOREIGN16 POSH_BigU16
-#  define FOREIGN32 POSH_BigU32
-#  define FOREIGN64 POSH_BigU64
-#else
-#  define IS_BIG_ENDIAN    1
-
-#  define NATIVE16  POSH_BigU16
-#  define NATIVE32  POSH_BigU32
-#  define NATIVE64  POSH_BigU64
-#  define FOREIGN16 POSH_LittleU16
-#  define FOREIGN32 POSH_LittleU32
-#  define FOREIGN64 POSH_LittleU64
-#endif /* POSH_LITTLE_ENDIAN */
-
-static 
-int 
-s_testBigEndian( void )
-{
-   union 
-   {
-      posh_byte_t c[ 4 ];
-      posh_u32_t  i;
-   } u;
-
-   u.i= 1;
-
-   if ( u.c[ 0 ] == 1 )
-   {
-      return 0;
-   }
-   return 1;
-}
-
-static
-const char *
-s_testSerialization( void )
-{
-   posh_byte_t serbuf[ 8 ];
-   posh_u16_t  tmp16;
-   posh_u32_t  tmp32;
-
-   /* 16-bit serialization */
-   POSH_WriteU16ToLittle( serbuf, 0xABCD );
-   if ( ( tmp16 = POSH_ReadU16FromLittle( serbuf ) ) != 0xABCD )
-   {
-      return "*ERROR: failed little-endian 16-bit serialization test";
-   }
-
-   POSH_WriteU16ToBig( serbuf, 0xABCD );
-   if ( ( tmp16 = POSH_ReadU16FromBig( serbuf ) ) != 0xABCD )
-   {
-      return "*ERROR: failed big-endian 16-bit serialization test";
-   }
-
-   /* 32-bit serialization */
-   POSH_WriteU32ToLittle( serbuf, 0xABCD1234L );
-   if ( ( tmp32 = POSH_ReadU32FromLittle( serbuf ) ) != 0xABCD1234 )
-   {
-      return "*ERROR: failed little-endian 32-bit serialization test";
-   }
-
-   POSH_WriteU32ToBig( serbuf, 0xABCD1234L );
-   if ( ( tmp32 = POSH_ReadU32FromBig( serbuf ) ) != 0xABCD1234 )
-   {
-      return "*ERROR: failed big-endian 32-bit serialization test";
-   }
-
-#if defined POSH_64BIT_INTEGER
-   {
-#define REF64 POSH_U64(0xFEDCBA9876543210)
-
-      posh_u64_t tmp64;
-
-      POSH_WriteU64ToLittle( serbuf, REF64 );
-
-      if ( ( tmp64 = POSH_ReadU64FromLittle( serbuf ) ) != REF64 )
-      {
-         return "*ERROR: failed little-endian 64-bit serialization test";
-      }
-
-      POSH_WriteU64ToBig( serbuf, REF64 );
-
-      if ( ( tmp64 = POSH_ReadU64FromBig( serbuf ) ) != REF64 )
-      {
-         return "*ERROR: failed big-endian 64-bit serialization test";
-      }
-   }
-#endif
-
-   return 0;
-}
-
-#if !defined POSH_NO_FLOAT
-static
-const char *
-s_testFloatingPoint( void )
-{
-   float fRef = 10.0f/30.0f;
-   double dRef = 10.0/30.0;
-   posh_byte_t dbuf[ 8 ];
-   float fTmp;
-   double dTmp;
-
-   fTmp = POSH_FloatFromLittleBits( POSH_LittleFloatBits( fRef ) );
-
-   if ( fTmp != fRef )
-   {
-      return "*ERROR: POSH little endian floating point conversion failed.  Please report this to poshlib@poshlib.org!\n";
-   }
-
-   fTmp = POSH_FloatFromBigBits( POSH_BigFloatBits( fRef ) );
-   if ( fTmp != fRef )
-   {
-      return "*ERROR: POSH big endian floating point conversion failed.  Please report this to poshlib@poshlib.org!\n";
-   }
-
-   POSH_DoubleBits( dRef, dbuf );
-
-   dTmp = POSH_DoubleFromBits( dbuf );
-
-   if ( dTmp != dRef )
-   {
-      return "*ERROR: POSH double precision floating point serialization failed.  Please report this to poshlib@poshlib.org!\n";
-   }
-
-   return 0;
-}
-#endif /* !defined POSH_NO_FLOAT */
-
-static
-const char *
-s_testEndianess( void )
-{
-   /* check endianess */
-   if ( s_testBigEndian() != IS_BIG_ENDIAN )
-   {
-      return "*ERROR: POSH compile time endianess does not match run-time endianess verification.  Please report this to poshlib@poshlib.org!\n";
-   }
-
-   /* make sure our endian swap routines work */
-   if ( ( NATIVE32( 0x11223344L ) != 0x11223344L ) || 
-        ( FOREIGN32( 0x11223344L ) != 0x44332211L ) ||
-        ( NATIVE16( 0x1234 ) != 0x1234 ) ||
-        ( FOREIGN16( 0x1234 ) != 0x3412 ) )
-   {
-      return "*ERROR: POSH endianess macro selection failed.  Please report this to poshlib@poshlib.org!\n";
-   }
-
-   /* test serialization routines */
-
-   return 0;
-}
-#endif /* !defined FORCE_DOXYGEN */
-
-/**
-  Returns a string describing this platform's basic attributes.  
-
-  POSH_GetArchString() reports on an architecture's statically determined
-  attributes.  In addition, it will perform run-time verification checks
-  to make sure the various platform specific functions work.  If an error
-  occurs, please contact me at poshlib@poshlib.org so we can try to resolve
-  what the specific failure case is.
-  @returns a string describing this platform on success, or a string in the 
-           form "*ERROR: [text]" on failure.  You can simply check to see if
-           the first character returned is '*' to verify an error condition.
-*/
-const char *
-POSH_GetArchString( void )
-{
-   const char *err;
-   const char *s = "OS:.............."POSH_OS_STRING"\n"
-                   "CPU:............."POSH_CPU_STRING"\n"
-                   "endian:.........."POSH_ENDIAN_STRING"\n"
-                   "ptr size:........"POSH_POINTER_STRING"\n"
-                   "64-bit ints......"POSH_64BIT_INTEGER_STRING"\n"
-                   "floating point..."POSH_FLOAT_STRING"\n"
-                   "compiler........."POSH_COMPILER_STRING"\n";
-
-   /* test endianess */
-   err = s_testEndianess();
-
-   if ( err != 0 )
-   {
-      return err;
-   }
-
-   /* test serialization */
-   err = s_testSerialization();
-
-   if ( err != 0 )
-   {
-      return err;
-   }
-
-#if !defined POSH_NO_FLOAT
-   /* check that our floating point support is correct */
-   err = s_testFloatingPoint();
-
-   if ( err != 0 )
-   {
-      return err;
-   }
-
-#endif
-
-   return s;
-}
-
-/* ---------------------------------------------------------------------------*/
-/*                           BYTE SWAPPING SUPPORT                            */
-/* ---------------------------------------------------------------------------*/
-/** 
- * Byte swaps a 16-bit unsigned value
- *
-   @ingroup ByteSwapFunctions
-   @param v [in] unsigned 16-bit input value to swap
-   @returns a byte swapped version of v
- */
-posh_u16_t
-POSH_SwapU16( posh_u16_t v )
-{
-   posh_u16_t swapped;
-
-   swapped  = v << 8;
-   swapped |= v >> 8;
-
-   return swapped;
-}
-
-/** 
- * Byte swaps a 16-bit signed value
- *
-   @ingroup ByteSwapFunctions
-   @param v [in] signed 16-bit input value to swap
-   @returns a byte swapped version of v
-   @remarks This just calls back to the unsigned version, since byte swapping 
-            is independent of sign.  However, we still provide this function to
-            avoid signed/unsigned mismatch compiler warnings.
- */
-posh_i16_t
-POSH_SwapI16( posh_i16_t v )
-{
-   return ( posh_i16_t ) POSH_SwapU16( v );
-}
-
-/** 
- * Byte swaps a 32-bit unsigned value
- *
-   @ingroup ByteSwapFunctions
-   @param v [in] unsigned 32-bit input value to swap
-   @returns a byte swapped version of v
- */
-posh_u32_t
-POSH_SwapU32( posh_u32_t v )
-{
-   posh_u32_t swapped;
-
-   swapped  = ( v & 0xFF ) << 24;
-   swapped |= ( v & 0xFF00 ) << 8;
-   swapped |= ( v >> 8 ) & 0xFF00;
-   swapped |= ( v >> 24 );
-
-   return swapped;
-}
-
-/** 
- * Byte swaps a 32-bit signed value
- *
-   @ingroup ByteSwapFunctions
-   @param v [in] signed 32-bit input value to swap
-   @returns a byte swapped version of v
-   @remarks This just calls back to the unsigned version, since byte swapping 
-            is independent of sign.  However, we still provide this function to
-            avoid signed/unsigned mismatch compiler warnings.
- */
-posh_i32_t
-POSH_SwapI32( posh_i32_t v )
-{
-   return ( posh_i32_t ) POSH_SwapU32( ( posh_u32_t ) v );
-}
-
-#if defined POSH_64BIT_INTEGER
-/**
- * Byte swaps a 64-bit unsigned value
-
-   @param v [in] a 64-bit input value to swap
-   @ingroup SixtyFourBit
-   @returns a byte swapped version of v
-*/
-posh_u64_t 
-POSH_SwapU64( posh_u64_t v )
-{
-   posh_byte_t tmp;
-   union {
-      posh_byte_t bytes[ 8 ];
-      posh_u64_t  u64;
-   } u;
-
-   u.u64 = v;
-
-   tmp = u.bytes[ 0 ]; u.bytes[ 0 ] = u.bytes[ 7 ]; u.bytes[ 7 ] = tmp;
-   tmp = u.bytes[ 1 ]; u.bytes[ 1 ] = u.bytes[ 6 ]; u.bytes[ 6 ] = tmp;
-   tmp = u.bytes[ 2 ]; u.bytes[ 2 ] = u.bytes[ 5 ]; u.bytes[ 5 ] = tmp;
-   tmp = u.bytes[ 3 ]; u.bytes[ 3 ] = u.bytes[ 4 ]; u.bytes[ 4 ] = tmp;
-
-   return u.u64;
-}
-
-/**
- * Byte swaps a 64-bit signed value
-
-   @param v [in] a 64-bit input value to swap
-   @ingroup SixtyFourBit
-   @returns a byte swapped version of v
-*/
-posh_i64_t 
-POSH_SwapI64( posh_i64_t v )
-{
-   return ( posh_i64_t ) POSH_SwapU64( ( posh_u64_t ) v );
-}
-
-#endif /* defined POSH_64BIT_INTEGER */
-
-/* ---------------------------------------------------------------------------*/
-/*                           IN-MEMORY SERIALIZATION                          */
-/* ---------------------------------------------------------------------------*/
-
-/**
- * Writes an unsigned 16-bit value to a little endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL.  Alignment doesn't matter.
- @param value [in] host-endian unsigned 16-bit value
- @returns a pointer to the location two bytes after dst
- @remarks does no validation of the inputs
-*/
-posh_u16_t *
-POSH_WriteU16ToLittle( void *dst, posh_u16_t value )
-{
-   posh_u16_t  *p16 = ( posh_u16_t * ) dst;
-   posh_byte_t *p   = ( posh_byte_t * ) dst;
-
-   p[ 0 ] = value & 0xFF;
-   p[ 1 ] = ( value & 0xFF00) >> 8;
-
-   return p16 + 1;
-}
-
-/**
- * Writes a signed 16-bit value to a little endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian signed 16-bit value
- @returns a pointer to the location two bytes after dst
- @remarks does no validation of the inputs.  This simply calls
-          POSH_WriteU16ToLittle() with appropriate casting.
-*/
-posh_i16_t *
-POSH_WriteI16ToLittle( void *dst, posh_i16_t value )
-{
-   return ( posh_i16_t * ) POSH_WriteU16ToLittle( dst, ( posh_u16_t ) value );
-}
-
-/**
- * Writes an unsigned 32-bit value to a little endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian signed 32-bit value
- @returns a pointer to the location four bytes after dst
- @remarks does no validation of the inputs.
-*/
-posh_u32_t *
-POSH_WriteU32ToLittle( void *dst, posh_u32_t value )
-{
-   posh_u32_t  *p32   = ( posh_u32_t * ) dst;
-   posh_byte_t *p     = ( posh_byte_t * ) dst;
-
-   p[ 0 ] = ( value & 0xFF );
-   p[ 1 ] = ( value & 0xFF00 ) >> 8;
-   p[ 2 ] = ( value & 0xFF0000 ) >> 16;
-   p[ 3 ] = ( value & 0xFF000000 ) >> 24;
-
-   return p32 + 1;
-}
-
-/**
- * Writes a signed 32-bit value to a little endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian signed 32-bit value
- @returns a pointer to the location four bytes after dst
- @remarks does no validation of the inputs.  This simply calls
-          POSH_WriteU32ToLittle() with appropriate casting.
-*/
-posh_i32_t *
-POSH_WriteI32ToLittle( void *dst, posh_i32_t value )
-{
-   return ( posh_i32_t * ) POSH_WriteU32ToLittle( dst, ( posh_u32_t ) value );
-}
-
-/**
- * Writes an unsigned 16-bit value to a big endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian unsigned 16-bit value
- @returns a pointer to the location two bytes after dst
- @remarks does no validation of the inputs
-*/
-posh_u16_t *
-POSH_WriteU16ToBig( void *dst, posh_u16_t value )
-{
-   posh_u16_t *p16 = ( posh_u16_t * ) dst;
-   posh_byte_t *p  = ( posh_byte_t * ) dst;
-
-   p[ 1 ] = ( value & 0xFF );
-   p[ 0 ] = ( value & 0xFF00 ) >> 8;
-
-   return p16 + 1;
-}
-
-/**
- * Writes a signed 16-bit value to a big endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian signed 16-bit value
- @returns a pointer to the location two bytes after dst
- @remarks does no validation of the inputs.  This simply calls
-          POSH_WriteU16ToLittle() with appropriate casting.
-*/
-posh_i16_t *
-POSH_WriteI16ToBig( void *dst, posh_i16_t value )
-{
-   return ( posh_i16_t * ) POSH_WriteU16ToBig( dst, ( posh_u16_t ) value );
-}
-
-/**
- * Writes an unsigned 32-bit value to a big endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian unsigned 32-bit value
- @returns a pointer to the location four bytes after dst
- @remarks does no validation of the inputs.
-*/
-posh_u32_t *
-POSH_WriteU32ToBig( void *dst, posh_u32_t value )
-{
-   posh_u32_t *p32 = ( posh_u32_t * ) dst;
-   posh_byte_t *p  = ( posh_byte_t * ) dst;
-
-   p[ 3 ] = ( value & 0xFF );
-   p[ 2 ] = ( value & 0xFF00 ) >> 8;
-   p[ 1 ] = ( value & 0xFF0000 ) >> 16;
-   p[ 0 ] = ( value & 0xFF000000 ) >> 24;
-
-   return p32 + 1;
-}
-
-/**
- * Writes a signed 32-bit value to a big endian buffer
-
- @ingroup MemoryBuffer
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian signed 32-bit value
- @returns a pointer to the location four bytes after dst
- @remarks does no validation of the inputs.  This simply calls
-          POSH_WriteU32ToBig() with appropriate casting.
-*/
-posh_i32_t *
-POSH_WriteI32ToBig( void *dst, posh_i32_t value )
-{
-   return ( posh_i32_t * ) POSH_WriteU32ToBig( dst, ( posh_u32_t ) value );
-}
-
-#if defined POSH_64BIT_INTEGER
-/**
- * Writes an unsigned 64-bit value to a little-endian buffer
-
- @ingroup SixtyFourBit
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian unsigned 64-bit value
- @returns a pointer to the location eight bytes after dst
- @remarks does no validation of the inputs.
-*/
-posh_u64_t *
-POSH_WriteU64ToLittle( void *dst, posh_u64_t value )
-{
-   posh_u64_t *p64 = ( posh_u64_t * ) dst;
-   posh_byte_t *p  = ( posh_byte_t * ) dst;
-   int i;
-
-   for ( i = 0; i < 8; i++, value >>= 8 )
-   {
-       p[ i ] = ( posh_byte_t ) ( value & 0xFF );
-   }
-
-   return p64 + 1;
-}
-
-/**
- * Writes a signed 64-bit value to a little-endian buffer
-
- @ingroup SixtyFourBit
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian unsigned 64-bit value
- @returns a pointer to the location eight bytes after dst
- @remarks does no validation of the inputs.
-*/
-posh_i64_t *
-POSH_WriteI64ToLittle( void *dst, posh_i64_t value )
-{
-   return ( posh_i64_t * ) POSH_WriteU64ToLittle( dst, ( posh_u64_t ) value );
-}
-
-/**
- * Writes an unsigned 64-bit value to a big-endian buffer
-
- @ingroup SixtyFourBit
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian unsigned 64-bit value
- @returns a pointer to the location eight bytes after dst
- @remarks does no validation of the inputs.
-*/
-posh_u64_t *
-POSH_WriteU64ToBig( void *dst, posh_u64_t value )
-{
-   posh_u64_t *p64 = ( posh_u64_t * ) dst;
-   posh_byte_t *p  = ( posh_byte_t * ) dst;
-   int i;
-
-   for ( i = 0; i < 8; i++, value >>= 8 )
-   {
-       p[ 7-i ] = ( posh_byte_t ) ( value & 0xFF );
-   }
-
-   return p64 + 8;
-}
-
-/**
- * Writes a signed 64-bit value to a big-endian buffer
-
- @ingroup SixtyFourBit
- @param dst [out] pointer to the destination buffer, may not be NULL
- @param value [in] host-endian signed 64-bit value
- @returns a pointer to the location eight bytes after dst
- @remarks does no validation of the inputs.
-*/
-posh_i64_t *
-POSH_WriteI64ToBig( void *dst, posh_i64_t value )
-{
-   return ( posh_i64_t * ) POSH_WriteU64ToBig( dst, ( posh_u64_t ) value );
-}
-
-#endif /* POSH_64BIT_INTEGER */
-
-/* ---------------------------------------------------------------------------*/
-/*                         IN-MEMORY DESERIALIZATION                          */
-/* ---------------------------------------------------------------------------*/
-
-/** 
- * Reads an unsigned 16-bit value from a little-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian unsigned 16-bit value
-*/
-posh_u16_t  
-POSH_ReadU16FromLittle( const void *src )
-{
-    posh_u16_t   v = 0;
-    posh_byte_t *p = ( posh_byte_t * ) src;
-
-    v |= p[ 0 ];
-    v |= ( ( posh_u16_t ) p[ 1 ] ) << 8;
-
-    return v;
-}
-
-/** 
- * Reads a signed 16-bit value from a little-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian signed 16-bit value
-*/
-posh_i16_t  
-POSH_ReadI16FromLittle( const void *src )
-{
-   return ( posh_i16_t ) POSH_ReadU16FromLittle( src );
-}
-
-/** 
- * Reads an unsigned 32-bit value from a little-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian unsigned 32-bit value
-*/
-posh_u32_t  
-POSH_ReadU32FromLittle( const void *src )
-{
-    posh_u32_t v = 0;
-    posh_byte_t *p = ( posh_byte_t * ) src;
-
-    v |= p[ 0 ];
-    v |= ( ( posh_u32_t ) p[ 1 ] ) << 8;
-    v |= ( ( posh_u32_t ) p[ 2 ] ) << 16;
-    v |= ( ( posh_u32_t ) p[ 3 ] ) << 24;
-
-    return v;
-}
-
-/** 
- * Reads a signed 32-bit value from a little-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian signed 32-bit value
-*/
-posh_i32_t  
-POSH_ReadI32FromLittle( const void *src )
-{
-   return ( posh_i32_t ) POSH_ReadU32FromLittle( src );
-}
-
-
-/** 
- * Reads an unsigned 16-bit value from a big-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian unsigned 16-bit value
-*/
-posh_u16_t  
-POSH_ReadU16FromBig( const void *src )
-{
-    posh_u16_t   v = 0;
-    posh_byte_t *p = ( posh_byte_t * ) src;
-
-    v |= p[ 1 ];
-    v |= ( ( posh_u16_t ) p[ 0 ] ) << 8;
-
-    return v;
-}
-
-/** 
- * Reads a signed 16-bit value from a big-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian signed 16-bit value
-*/
-posh_i16_t  
-POSH_ReadI16FromBig( const void *src )
-{
-   return ( posh_i16_t ) POSH_ReadU16FromBig( src );
-}
-
-/** 
- * Reads an unsigned 32-bit value from a big-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian unsigned 32-bit value
-*/
-posh_u32_t  
-POSH_ReadU32FromBig( const void *src )
-{
-    posh_u32_t   v = 0;
-    posh_byte_t *p = ( posh_byte_t * ) src;
-
-    v |= p[ 3 ];
-    v |= ( ( posh_u32_t ) p[ 2 ] ) << 8;
-    v |= ( ( posh_u32_t ) p[ 1 ] ) << 16;
-    v |= ( ( posh_u32_t ) p[ 0 ] ) << 24;
-
-    return v;
-}
-
-/** 
- * Reads a signed 32-bit value from a big-endian buffer
- @ingroup MemoryBuffer
- @param src [in] source buffer
- @returns host-endian signed 32-bit value
-*/
-posh_i32_t  
-POSH_ReadI32FromBig( const void *src )
-{
-   return POSH_BigI32( (*(const posh_i32_t*)src ) );
-}
-
-#if defined POSH_64BIT_INTEGER
-
-/** 
- * Reads an unsigned 64-bit value from a little-endian buffer
- @param src [in] source buffer
- @returns host-endian unsigned 32-bit value
-*/
-posh_u64_t  
-POSH_ReadU64FromLittle( const void *src )
-{
-    posh_u64_t v = 0;
-    posh_byte_t *p = ( posh_byte_t * ) src;
-    int i;
-
-    for ( i = 0; i < 8; i++ )
-    {
-        v |= ( ( posh_u64_t ) p[ i ] ) << (i*8);
-    }
-
-    return v;
-}
-
-/** 
- * Reads a signed 64-bit value from a little-endian buffer
- @param src [in] source buffer
- @returns host-endian signed 32-bit value
-*/
-posh_i64_t  
-POSH_ReadI64FromLittle( const void *src )
-{
-   return ( posh_i64_t ) POSH_ReadU64FromLittle( src );
-}
-
-/** 
- * Reads an unsigned 64-bit value from a big-endian buffer
- @param src [in] source buffer
- @returns host-endian unsigned 32-bit value
-*/
-posh_u64_t
-POSH_ReadU64FromBig( const void *src )
-{
-    posh_u64_t v = 0;
-    posh_byte_t *p = ( posh_byte_t * ) src;
-    int i;
-
-    for ( i = 0; i < 8; i++ )
-    {
-        v |= ( ( posh_u64_t ) p[ 7-i ] ) << (i*8);
-    }
-
-    return v;
-}
-
-/** 
- * Reads an signed 64-bit value from a big-endian buffer
- @param src [in] source buffer
- @returns host-endian signed 32-bit value
-*/
-posh_i64_t
-POSH_ReadI64FromBig( const void *src )
-{
-   return ( posh_i64_t ) POSH_ReadU64FromBig( src );
-}
-
-#endif /* POSH_64BIT_INTEGER */
-
-/* ---------------------------------------------------------------------------*/
-/*                           FLOATING POINT SUPPORT                           */
-/* ---------------------------------------------------------------------------*/
-
-#if !defined POSH_NO_FLOAT
-
-/** @ingroup FloatingPoint
-    @param[in] f floating point value
-    @returns a little-endian bit representation of f
- */
-posh_u32_t
-POSH_LittleFloatBits( float f )
-{
-   union
-   {
-      float f32;
-      posh_u32_t u32;
-   } u;
-
-   u.f32 = f;
-
-   return POSH_LittleU32( u.u32 );
-}
-
-/** 
- * Extracts raw big-endian bits from a 32-bit floating point value
- *
-   @ingroup FloatingPoint
-   @param   f [in] floating point value
-   @returns a big-endian bit representation of f
- */
-posh_u32_t
-POSH_BigFloatBits( float f )
-{
-   union
-   {
-      float f32;
-      posh_u32_t u32;
-   } u;
-
-   u.f32 = f;
-
-   return POSH_BigU32( u.u32 );
-}
-
-/** 
- * Extracts raw, little-endian bit representation from a 64-bit double.
- *
-   @param d [in] 64-bit double precision value
-   @param dst [out] 8-byte storage buffer
-   @ingroup FloatingPoint
-   @returns the raw bits used to represent the value 'd', in the form dst[0]=LSB
- */
-void
-POSH_DoubleBits( double d, posh_byte_t dst[ 8 ] )
-{
-   union
-   {
-      double d64;
-      posh_byte_t bytes[ 8 ];
-   } u;
-
-   u.d64 = d;
-
-#if defined POSH_LITTLE_ENDIAN
-   dst[ 0 ] = u.bytes[ 0 ];
-   dst[ 1 ] = u.bytes[ 1 ];
-   dst[ 2 ] = u.bytes[ 2 ];
-   dst[ 3 ] = u.bytes[ 3 ];
-   dst[ 4 ] = u.bytes[ 4 ];
-   dst[ 5 ] = u.bytes[ 5 ];
-   dst[ 6 ] = u.bytes[ 6 ];
-   dst[ 7 ] = u.bytes[ 7 ];
-#else
-   dst[ 0 ] = u.bytes[ 7 ];
-   dst[ 1 ] = u.bytes[ 6 ];
-   dst[ 2 ] = u.bytes[ 5 ];
-   dst[ 3 ] = u.bytes[ 4 ];
-   dst[ 4 ] = u.bytes[ 3 ];
-   dst[ 5 ] = u.bytes[ 2 ];
-   dst[ 6 ] = u.bytes[ 1 ];
-   dst[ 7 ] = u.bytes[ 0 ];
-#endif
-}
-
-/** 
- * Creates a double-precision, 64-bit floating point value from a set of raw, 
- * little-endian bits
-
-   @ingroup FloatingPoint
-   @param src [in] little-endian byte representation of 64-bit double precision 
-                  floating point value
-   @returns double precision floating point representation of the raw bits
-   @remarks No error checking is performed, so there are no guarantees that the 
-            result is a valid number, nor is there any check to ensure that src is 
-            non-NULL.  BE CAREFUL USING THIS.
- */
-double
-POSH_DoubleFromBits( const posh_byte_t src[ 8 ] )
-{
-   union
-   {
-      double d64;
-      posh_byte_t bytes[ 8 ];
-   } u;
-
-#if defined POSH_LITTLE_ENDIAN
-   u.bytes[ 0 ] = src[ 0 ];
-   u.bytes[ 1 ] = src[ 1 ];
-   u.bytes[ 2 ] = src[ 2 ];
-   u.bytes[ 3 ] = src[ 3 ];
-   u.bytes[ 4 ] = src[ 4 ];
-   u.bytes[ 5 ] = src[ 5 ];
-   u.bytes[ 6 ] = src[ 6 ];
-   u.bytes[ 7 ] = src[ 7 ];
-#else
-   u.bytes[ 0 ] = src[ 7 ];
-   u.bytes[ 1 ] = src[ 6 ];
-   u.bytes[ 2 ] = src[ 5 ];
-   u.bytes[ 3 ] = src[ 4 ];
-   u.bytes[ 4 ] = src[ 3 ];
-   u.bytes[ 5 ] = src[ 2 ];
-   u.bytes[ 6 ] = src[ 1 ];
-   u.bytes[ 7 ] = src[ 0 ];
-#endif
-
-   return u.d64;
-}
-
-/** 
- * Creates a floating point number from little endian bits
- *
-   @ingroup FloatingPoint
-   @param   bits [in] raw floating point bits in little-endian form
-   @returns a floating point number based on the given bit representation
-   @remarks No error checking is performed, so there are no guarantees that the 
-            result is a valid number.  BE CAREFUL USING THIS.
- */
-float       
-POSH_FloatFromLittleBits( posh_u32_t bits )
-{
-   union
-   {
-      float f32;
-      posh_u32_t u32;
-   } u;
-
-   u.u32 = bits;
-#if defined POSH_BIG_ENDIAN
-   u.u32 = POSH_SwapU32( u.u32 );
-#endif
-
-   return u.f32;
-}
-
-/** 
- * Creates a floating point number from big-endian bits
- *
-   @ingroup FloatingPoint
-   @param   bits [in] raw floating point bits in big-endian form
-   @returns a floating point number based on the given bit representation
-   @remarks No error checking is performed, so there are no guarantees that the 
-            result is a valid number.  BE CAREFUL USING THIS.
- */
-float
-POSH_FloatFromBigBits( posh_u32_t bits )
-{
-   union
-   {
-      float f32;
-      posh_u32_t u32;
-   } u;
-
-   u.u32 = bits;
-#if defined POSH_LITTLE_ENDIAN
-   u.u32 = POSH_SwapU32( u.u32 );
-#endif
-
-   return u.f32;
-}
-
-#endif /* !defined POSH_NO_FLOAT */
diff --git a/thirdparty/thekla_atlas/poshlib/posh.h b/thirdparty/thekla_atlas/poshlib/posh.h
deleted file mode 100644
index 72acd20ce0..0000000000
--- a/thirdparty/thekla_atlas/poshlib/posh.h
+++ /dev/null
@@ -1,1040 +0,0 @@
-/**
-@file posh.h
-@author Brian Hook
-@version 1.3.001
-
-Header file for POSH, the Portable Open Source Harness project.
-
-NOTE: Unlike most header files, this one is designed to be included
-multiple times, which is why it does not have the @#ifndef/@#define
-preamble.
-
-POSH relies on environment specified preprocessor symbols in order
-to infer as much as possible about the target OS/architecture and
-the host compiler capabilities.
-
-NOTE: POSH is simple and focused. It attempts to provide basic
-functionality and information, but it does NOT attempt to emulate
-missing functionality.  I am also not willing to make POSH dirty
-and hackish to support truly ancient and/or outmoded and/or bizarre
-technologies such as non-ANSI compilers, systems with non-IEEE
-floating point formats, segmented 16-bit operating systems, etc.
-
-Please refer to the accompanying HTML documentation or visit
-http://www.poshlib.org for more information on how to use POSH.
-
-LICENSE:
-
-Copyright (c) 2004, Brian Hook
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-
-    * Redistributions in binary form must reproduce the above
-      copyright notice, this list of conditions and the following
-      disclaimer in the documentation and/or other materials provided
-      with the distribution.
-
-    * The names of this package'ss contributors contributors may not
-      be used to endorse or promote products derived from this
-      software without specific prior written permission.
-
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-REVISION:
-
-I've been lax about revision histories, so this starts at, um, 1.3.001.
-Sorry for any inconveniences.
-
-1.3.001 - 2/23/2006 - Incorporated fix for bug reported by Bill Cary,
-                      where I was not detecting Visual Studio
-                      compilation on x86-64 systems.  Added check for
-                      _M_X64 which should fix that.
-
-*/
-/*
-I have yet to find an authoritative reference on preprocessor
-symbols, but so far this is what I've gleaned:
-
-GNU GCC/G++:
-   - __GNUC__: GNU C version
-   - __GNUG__: GNU C++ compiler
-   - __sun__ : on Sun platforms
-   - __svr4__: on Solaris and other SysV R4 platforms
-   - __mips__: on MIPS processor platforms
-   - __sparc_v9__: on Sparc 64-bit CPUs
-   - __sparcv9: 64-bit Solaris
-   - __MIPSEL__: mips processor, compiled for little endian
-   - __MIPSEB__: mips processor, compiled for big endian
-   - _R5900: MIPS/Sony/Toshiba R5900 (PS2)
-   - mc68000: 68K
-   - m68000: 68K
-   - m68k: 68K
-   - __palmos__: PalmOS
-
-Intel C/C++ Compiler:
-   - __ECC      : compiler version, IA64 only
-   - __EDG__
-   - __ELF__
-   - __GXX_ABI_VERSION
-   - __i386     : IA-32 only
-   - __i386__   : IA-32 only
-   - i386       : IA-32 only
-   - __ia64     : IA-64 only
-   - __ia64__   : IA-64 only
-   - ia64       : IA-64 only
-   - __ICC      : IA-32 only
-   - __INTEL_COMPILER : IA-32 or IA-64, newer versions only
-
-Apple's C/C++ Compiler for OS X:
-   - __APPLE_CC__
-   - __APPLE__
-   - __BIG_ENDIAN__
-   - __APPLE__
-   - __ppc__
-   - __MACH__
-
-DJGPP:
-   - __MSDOS__
-   - __unix__
-   - __unix
-   - __GNUC__
-   - __GO32
-   - DJGPP
-   - __i386, __i386, i386
-
-Cray's C compiler:
-   - _ADDR64: if 64-bit pointers
-   - _UNICOS: 
-   - __unix:
-
-SGI's CC compiler predefines the following (and more) with -ansi:
-   - __sgi
-   - __unix
-   - __host_mips
-   - _SYSTYPE_SVR4
-   - __mips
-   - _MIPSEB
-   - anyone know if there is a predefined symbol for the compiler?!
-
-MinGW:
-   - as GnuC but also defines _WIN32, __WIN32, WIN32, _X86_, __i386, __i386__, and several others
-   - __MINGW32__
-
-Cygwin:
-   - as Gnu C, but also
-   - __unix__
-   - __CYGWIN32__
-
-Microsoft Visual Studio predefines the following:
-   - _MSC_VER
-   - _WIN32: on Win32
-   - _M_IX6 (on x86 systems)
-   - _M_X64: on x86-64 systems
-   - _M_ALPHA (on DEC AXP systems)
-   - _SH3: WinCE, Hitachi SH-3
-   - _MIPS: WinCE, MIPS
-   - _ARM: WinCE, ARM
-
-Sun's C Compiler:
-   - sun and _sun
-   - unix and _unix
-   - sparc and _sparc (SPARC systems only)
-   - i386 and _i386 (x86 systems only)
-   - __SVR4 (Solaris only)
-   - __sparcv9: 64-bit solaris
-   - __SUNPRO_C
-   - _LP64: defined in 64-bit LP64 mode, but only if <sys/types.h> is included
-
-Borland C/C++ predefines the following:
-   - __BORLANDC__:
-
-DEC/Compaq C/C++ on Alpha:
-   - __alpha
-   - __arch64__
-   - __unix__ (on Tru64 Unix)
-   - __osf__
-   - __DECC
-   - __DECCXX (C++ compilation)
-   - __DECC_VER
-   - __DECCXX_VER
-
-IBM's AIX compiler:
-   - __64BIT__ if 64-bit mode
-   - _AIX
-   - __IBMC__: C compiler version
-   - __IBMCPP__: C++ compiler version
-   - _LONG_LONG: compiler allows long long
-
-Watcom:
-   - __WATCOMC__
-   - __DOS__ : if targeting DOS
-   - __386__ : if 32-bit support
-   - __WIN32__ : if targetin 32-bit Windows
-
-HP-UX C/C++ Compiler:
-   - __hpux
-   - __unix
-   - __hppa (on PA-RISC)
-   - __LP64__: if compiled in 64-bit mode
-
-Metrowerks:
-   - __MWERKS__
-   - __powerpc__
-   - _powerc
-   - __MC68K__
-   - macintosh when compiling for MacOS
-   - __INTEL__ for x86 targets
-   - __POWERPC__
-
-*/
-
-/*
-** ----------------------------------------------------------------------------
-** Include <limits.h> optionally
-** ----------------------------------------------------------------------------
-*/
-#ifdef POSH_USE_LIMITS_H
-#  include <limits.h>
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** Determine compilation environment
-** ----------------------------------------------------------------------------
-*/
-#if defined __ECC || defined __ICC || defined __INTEL_COMPILER
-#  define POSH_COMPILER_STRING "Intel C/C++"
-#  define POSH_COMPILER_INTEL 1
-#endif
-
-#if ( defined __host_mips || defined __sgi ) && !defined __GNUC__
-#  define POSH_COMPILER_STRING    "MIPSpro C/C++"
-#  define POSH_COMPILER_MIPSPRO 1 
-#endif
-
-#if defined __hpux && !defined __GNUC__
-#  define POSH_COMPILER_STRING "HP-UX CC"
-#  define POSH_COMPILER_HPCC 1 
-#endif
-
-#if defined __GNUC__ && !defined __clang__
-#  define POSH_COMPILER_STRING "Gnu GCC"
-#  define POSH_COMPILER_GCC 1
-#endif
-
-#if defined __clang__
-#  define POSH_COMPILER_STRING "Clang"
-#  define POSH_COMPILER_CLANG 1
-#endif
-
-#if defined __APPLE_CC__
-   /* we don't define the compiler string here, let it be GNU */
-#  define POSH_COMPILER_APPLECC 1
-#endif
-
-#if defined __IBMC__ || defined __IBMCPP__
-#  define POSH_COMPILER_STRING "IBM C/C++"
-#  define POSH_COMPILER_IBM 1
-#endif
-
-#if defined _MSC_VER
-#  define POSH_COMPILER_STRING "Microsoft Visual C++"
-#  define POSH_COMPILER_MSVC 1
-#endif
-
-#if defined __SUNPRO_C
-#  define POSH_COMPILER_STRING "Sun Pro" 
-#  define POSH_COMPILER_SUN 1
-#endif
-
-#if defined __BORLANDC__
-#  define POSH_COMPILER_STRING "Borland C/C++"
-#  define POSH_COMPILER_BORLAND 1
-#endif
-
-#if defined __MWERKS__
-#  define POSH_COMPILER_STRING     "MetroWerks CodeWarrior"
-#  define POSH_COMPILER_METROWERKS 1
-#endif
-
-#if defined __DECC || defined __DECCXX
-#  define POSH_COMPILER_STRING "Compaq/DEC C/C++"
-#  define POSH_COMPILER_DEC 1
-#endif
-
-#if defined __WATCOMC__
-#  define POSH_COMPILER_STRING "Watcom C/C++"
-#  define POSH_COMPILER_WATCOM 1
-#endif
-
-#if !defined POSH_COMPILER_STRING
-#  define POSH_COMPILER_STRING "Unknown compiler"
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** Determine target operating system
-** ----------------------------------------------------------------------------
-*/
-#if defined linux || defined __linux__
-#  define POSH_OS_LINUX 1 
-#  define POSH_OS_STRING "Linux"
-#endif
-
-#if defined __HAIKU__
-#  define POSH_OS_HAIKU 1
-#  define POSH_OS_STRING "Haiku"
-#endif
-
-#if defined __FreeBSD__
-#  define POSH_OS_FREEBSD 1 
-#  define POSH_OS_STRING "FreeBSD"
-#endif
-
-#if defined __CYGWIN32__
-#  define POSH_OS_CYGWIN32 1
-#  define POSH_OS_STRING "Cygwin"
-#endif
-
-#if defined GEKKO
-#  define POSH_OS_GAMECUBE
-#  define __powerpc__
-#  define POSH_OS_STRING "GameCube"
-#endif
-
-#if defined __MINGW32__
-#  define POSH_OS_MINGW 1
-#  define POSH_OS_STRING "MinGW"
-#endif
-
-#if defined GO32 && defined DJGPP && defined __MSDOS__
-#  define POSH_OS_GO32 1
-#  define POSH_OS_STRING "GO32/MS-DOS"
-#endif
-
-/* NOTE: make sure you use /bt=DOS if compiling for 32-bit DOS,
-   otherwise Watcom assumes host=target */
-#if defined __WATCOMC__  && defined __386__ && defined __DOS__
-#  define POSH_OS_DOS32 1
-#  define POSH_OS_STRING "DOS/32-bit"
-#endif
-
-#if defined _UNICOS
-#  define POSH_OS_UNICOS 1
-#  define POSH_OS_STRING "UNICOS"
-#endif
-
-//ACS if we're in xcode, look at the target conditionals to figure out if this is ios or osx
-#if defined __APPLE__
-#  include "TargetConditionals.h"
-#endif
-#if TARGET_OS_IPHONE
-#    define POSH_OS_IOS 1
-#    define POSH_OS_STRING "iOS"
-#else
-#  if ( defined __MWERKS__ && defined __powerc && !defined macintosh ) || defined __APPLE_CC__ || defined macosx
-#    define POSH_OS_OSX 1
-#    define POSH_OS_STRING "MacOS X"
-#  endif
-#endif
-
-#if defined __sun__ || defined sun || defined __sun || defined __solaris__
-#  if defined __SVR4 || defined __svr4__ || defined __solaris__
-#     define POSH_OS_STRING "Solaris"
-#     define POSH_OS_SOLARIS 1
-#  endif
-#  if !defined POSH_OS_STRING
-#     define POSH_OS_STRING "SunOS"
-#     define POSH_OS_SUNOS 1
-#  endif
-#endif
-
-#if defined __sgi__ || defined sgi || defined __sgi
-#  define POSH_OS_IRIX 1
-#  define POSH_OS_STRING "Irix"
-#endif
-
-#if defined __hpux__ || defined __hpux
-#  define POSH_OS_HPUX 1
-#  define POSH_OS_STRING "HP-UX"
-#endif
-
-#if defined _AIX
-#  define POSH_OS_AIX 1
-#  define POSH_OS_STRING "AIX"
-#endif
-
-#if ( defined __alpha && defined __osf__ )
-#  define POSH_OS_TRU64 1
-#  define POSH_OS_STRING "Tru64"
-#endif
-
-#if defined __BEOS__ || defined __beos__
-#  define POSH_OS_BEOS 1
-#  define POSH_OS_STRING "BeOS"
-#endif
-
-#if defined amiga || defined amigados || defined AMIGA || defined _AMIGA
-#  define POSH_OS_AMIGA 1
-#  define POSH_OS_STRING "Amiga"
-#endif
-
-#if defined __unix__
-#  define POSH_OS_UNIX 1 
-#  if !defined POSH_OS_STRING
-#     define POSH_OS_STRING "Unix-like(generic)"
-#  endif
-#endif
-
-#if defined _WIN32_WCE
-#  define POSH_OS_WINCE 1
-#  define POSH_OS_STRING "Windows CE"
-#endif
-
-#if defined _XBOX || defined _XBOX_VER
-#  define POSH_OS_XBOX 1
-#  define POSH_OS_STRING "XBOX"
-#endif
-
-#if defined __ORBIS__
-#   define POSH_OS_ORBIS
-#endif
-
-#if defined _WIN32 || defined WIN32 || defined __NT__ || defined __WIN32__
-#  if !defined POSH_OS_XBOX
-#  define POSH_OS_WIN32 1
-#     if defined _WIN64
-#        define POSH_OS_WIN64 1
-#        define POSH_OS_STRING "Win64"
-#     else
-#        if !defined POSH_OS_STRING
-#           define POSH_OS_STRING "Win32"
-#        endif
-#     endif
-#  endif
-#endif
-
-#if defined __palmos__
-#  define POSH_OS_PALM 1
-#  define POSH_OS_STRING "PalmOS"
-#endif
-
-#if defined THINK_C || defined macintosh
-#  define POSH_OS_MACOS 1
-#  define POSH_OS_STRING "MacOS"
-#endif
-
-/*
-** -----------------------------------------------------------------------------
-** Determine target CPU
-** -----------------------------------------------------------------------------
-*/
-
-#if defined GEKKO
-#  define POSH_CPU_PPC750 1
-#  define POSH_CPU_STRING "IBM PowerPC 750 (NGC)"
-#endif
-
-#if defined mc68000 || defined m68k || defined __MC68K__ || defined m68000
-#  define POSH_CPU_68K 1
-#  define POSH_CPU_STRING "MC68000"
-#endif
-
-#if defined __PPC__ || defined __POWERPC__  || defined powerpc || defined _POWER || defined __ppc__ || defined __powerpc__ || defined _M_PPC
-#  define POSH_CPU_PPC 1
-#  if !defined POSH_CPU_STRING
-#    if defined __powerpc64__
-#       define POSH_CPU_STRING "PowerPC64"
-#    else
-#       define POSH_CPU_STRING "PowerPC"
-#    endif
-#  endif
-#endif
-
-#if defined _CRAYT3E || defined _CRAYMPP
-#  define POSH_CPU_CRAYT3E 1 /* target processor is a DEC Alpha 21164 used in a Cray T3E*/
-#  define POSH_CPU_STRING "Cray T3E (Alpha 21164)"
-#endif
-
-#if defined CRAY || defined _CRAY && !defined _CRAYT3E
-#  error Non-AXP Cray systems not supported
-#endif
-
-#if defined _SH3
-#  define POSH_CPU_SH3 1
-#  define POSH_CPU_STRING "Hitachi SH-3"
-#endif
-
-#if defined __sh4__ || defined __SH4__
-#  define POSH_CPU_SH3 1
-#  define POSH_CPU_SH4 1
-#  define POSH_CPU_STRING "Hitachi SH-4"
-#endif
-
-#if defined __sparc__ || defined __sparc
-#  if defined __arch64__ || defined __sparcv9 || defined __sparc_v9__
-#     define POSH_CPU_SPARC64 1 
-#     define POSH_CPU_STRING "Sparc/64"
-#  else
-#     define POSH_CPU_STRING "Sparc/32"
-#  endif
-#  define POSH_CPU_SPARC 1
-#endif
-
-#if defined ARM || defined __arm__ || defined _ARM
-#  define POSH_CPU_STRONGARM 1
-#  define POSH_CPU_STRING "ARM"
-#endif
-
-#if defined AARCH64 || defined __aarch64__ || defined _AARCH64
-#  define POSH_CPU_STRONGARM 1
-#  define POSH_CPU_STRING "AARCH64"
-#endif
-
-#if defined mips || defined __mips__ || defined __MIPS__ || defined _MIPS
-#  define POSH_CPU_MIPS 1 
-#  if defined _R5900
-#    define POSH_CPU_STRING "MIPS R5900 (PS2)"
-#  else
-#    define POSH_CPU_STRING "MIPS"
-#  endif
-#endif
-
-#if defined __ia64 || defined _M_IA64 || defined __ia64__ 
-#  define POSH_CPU_IA64 1
-#  define POSH_CPU_STRING "IA64"
-#endif
-
-#if defined __X86__ || defined __i386__ || defined i386 || defined _M_IX86 || defined __386__ || defined __x86_64__ || defined _M_X64
-#  define POSH_CPU_X86 1
-#  if defined __x86_64__ || defined _M_X64
-#     define POSH_CPU_X86_64 1 
-#  endif
-#  if defined POSH_CPU_X86_64
-#     define POSH_CPU_STRING "AMD x86-64"
-#  else
-#     define POSH_CPU_STRING "Intel 386+"
-#  endif
-#endif
-
-#if defined __alpha || defined alpha || defined _M_ALPHA || defined __alpha__
-#  define POSH_CPU_AXP 1
-#  define POSH_CPU_STRING "AXP"
-#endif
-
-#if defined __hppa || defined hppa
-#  define POSH_CPU_HPPA 1
-#  define POSH_CPU_STRING "PA-RISC"
-#endif
-
-#if !defined POSH_CPU_STRING
-#  error POSH cannot determine target CPU
-#  define POSH_CPU_STRING "Unknown" /* this is here for Doxygen's benefit */
-#endif
-
-/*
-** -----------------------------------------------------------------------------
-** Attempt to autodetect building for embedded on Sony PS2
-** -----------------------------------------------------------------------------
-*/
-#if !defined POSH_OS_STRING
-#  if !defined FORCE_DOXYGEN
-#    define POSH_OS_EMBEDDED 1 
-#  endif
-#  if defined _R5900
-#     define POSH_OS_STRING "Sony PS2(embedded)"
-#  else
-#     define POSH_OS_STRING "Embedded/Unknown"
-#  endif
-#endif
-
-/*
-** ---------------------------------------------------------------------------
-** Handle cdecl, stdcall, fastcall, etc.
-** ---------------------------------------------------------------------------
-*/
-#if defined POSH_CPU_X86 && !defined POSH_CPU_X86_64
-#  if defined __GNUC__
-#     define POSH_CDECL __attribute__((cdecl))
-#     define POSH_STDCALL __attribute__((stdcall))
-#     define POSH_FASTCALL __attribute__((fastcall))
-#  elif ( defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__ || defined __MWERKS__ )
-#     define POSH_CDECL    __cdecl
-#     define POSH_STDCALL  __stdcall
-#     define POSH_FASTCALL __fastcall
-#  endif
-#else
-#  define POSH_CDECL    
-#  define POSH_STDCALL  
-#  define POSH_FASTCALL 
-#endif
-
-/*
-** ---------------------------------------------------------------------------
-** Define POSH_IMPORTEXPORT signature based on POSH_DLL and POSH_BUILDING_LIB
-** ---------------------------------------------------------------------------
-*/
-
-/*
-** We undefine this so that multiple inclusions will work
-*/
-#if defined POSH_IMPORTEXPORT
-#  undef POSH_IMPORTEXPORT
-#endif
-
-#if defined POSH_DLL
-#   if defined POSH_OS_WIN32
-#      if defined _MSC_VER 
-#         if ( _MSC_VER >= 800 )
-#            if defined POSH_BUILDING_LIB
-#               define POSH_IMPORTEXPORT __declspec( dllexport )
-#            else
-#               define POSH_IMPORTEXPORT __declspec( dllimport )
-#            endif
-#         else
-#            if defined POSH_BUILDING_LIB
-#               define POSH_IMPORTEXPORT __export
-#            else
-#               define POSH_IMPORTEXPORT 
-#            endif
-#         endif
-#      endif  /* defined _MSC_VER */
-#      if defined __BORLANDC__
-#         if ( __BORLANDC__ >= 0x500 )
-#            if defined POSH_BUILDING_LIB 
-#               define POSH_IMPORTEXPORT __declspec( dllexport )
-#            else
-#               define POSH_IMPORTEXPORT __declspec( dllimport )
-#            endif
-#         else
-#            if defined POSH_BUILDING_LIB
-#               define POSH_IMPORTEXPORT __export
-#            else
-#               define POSH_IMPORTEXPORT 
-#            endif
-#         endif
-#      endif /* defined __BORLANDC__ */
-       /* for all other compilers, we're just making a blanket assumption */
-#      if defined __GNUC__ || defined __WATCOMC__ || defined __MWERKS__
-#         if defined POSH_BUILDING_LIB
-#            define POSH_IMPORTEXPORT __declspec( dllexport )
-#         else
-#            define POSH_IMPORTEXPORT __declspec( dllimport )
-#         endif
-#      endif /* all other compilers */
-#      if !defined POSH_IMPORTEXPORT
-#         error Building DLLs not supported on this compiler (poshlib@poshlib.org if you know how)
-#      endif
-#   endif /* defined POSH_OS_WIN32 */
-#endif
-
-/* On pretty much everything else, we can thankfully just ignore this */
-#if !defined POSH_IMPORTEXPORT
-#  define POSH_IMPORTEXPORT
-#endif
-
-#if defined FORCE_DOXYGEN
-#  define POSH_DLL    
-#  define POSH_BUILDING_LIB
-#  undef POSH_DLL
-#  undef POSH_BUILDING_LIB
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** (Re)define POSH_PUBLIC_API export signature 
-** ----------------------------------------------------------------------------
-*/
-#ifdef POSH_PUBLIC_API
-#  undef POSH_PUBLIC_API
-#endif
-
-#if ( ( defined _MSC_VER ) && ( _MSC_VER < 800 ) ) || ( defined __BORLANDC__ && ( __BORLANDC__ < 0x500 ) )
-#  define POSH_PUBLIC_API(rtype) extern rtype POSH_IMPORTEXPORT 
-#else
-#  define POSH_PUBLIC_API(rtype) extern POSH_IMPORTEXPORT rtype
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** Try to infer endianess.  Basically we just go through the CPUs we know are
-** little endian, and assume anything that isn't one of those is big endian.
-** As a sanity check, we also do this with operating systems we know are
-** little endian, such as Windows.  Some processors are bi-endian, such as 
-** the MIPS series, so we have to be careful about those.
-** ----------------------------------------------------------------------------
-*/
-#if defined POSH_CPU_X86 || defined POSH_CPU_AXP || defined POSH_CPU_STRONGARM || defined POSH_OS_WIN32 || defined POSH_OS_WINCE || defined __MIPSEL__
-#  define POSH_ENDIAN_STRING "little"
-#  define POSH_LITTLE_ENDIAN 1
-#else
-#  define POSH_ENDIAN_STRING "big"
-#  define POSH_BIG_ENDIAN 1
-#endif
-
-#if defined FORCE_DOXYGEN
-#  define POSH_LITTLE_ENDIAN
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** Cross-platform compile time assertion macro
-** ----------------------------------------------------------------------------
-*/
-#define POSH_COMPILE_TIME_ASSERT(name, x) typedef int _POSH_dummy_ ## name[(x) ? 1 : -1 ]
-
-/*
-** ----------------------------------------------------------------------------
-** 64-bit Integer
-**
-** We don't require 64-bit support, nor do we emulate its functionality, we
-** simply export it if it's available.  Since we can't count on <limits.h>
-** for 64-bit support, we ignore the POSH_USE_LIMITS_H directive.
-** ----------------------------------------------------------------------------
-*/
-#if defined ( __LP64__ ) || defined ( __powerpc64__ ) || defined POSH_CPU_SPARC64
-#  define POSH_64BIT_INTEGER 1
-typedef long posh_i64_t; 
-typedef unsigned long posh_u64_t;
-#  define POSH_I64( x ) ((posh_i64_t)x)
-#  define POSH_U64( x ) ((posh_u64_t)x)
-#  define POSH_I64_PRINTF_PREFIX "l"
-#elif defined _MSC_VER || defined __BORLANDC__ || defined __WATCOMC__ || ( defined __alpha && defined __DECC )
-#  define POSH_64BIT_INTEGER 1
-typedef __int64 posh_i64_t;
-typedef unsigned __int64 posh_u64_t;
-#  define POSH_I64( x ) ((posh_i64_t)x)
-#  define POSH_U64( x ) ((posh_u64_t)x)
-#  define POSH_I64_PRINTF_PREFIX "I64"
-#elif defined __GNUC__ || defined __MWERKS__ || defined __SUNPRO_C || defined __SUNPRO_CC || defined __APPLE_CC__ || defined POSH_OS_IRIX || defined _LONG_LONG || defined _CRAYC
-#  define POSH_64BIT_INTEGER 1
-typedef long long posh_i64_t;
-typedef unsigned long long posh_u64_t;
-#  define POSH_U64( x ) ((posh_u64_t)(x##LL))
-#  define POSH_I64( x ) ((posh_i64_t)(x##LL))
-#  define POSH_I64_PRINTF_PREFIX "ll"
-#endif
-
-/* hack */
-/*#ifdef __MINGW32__
-#undef POSH_I64
-#undef POSH_U64
-#undef POSH_I64_PRINTF_PREFIX
-#define POSH_I64( x ) ((posh_i64_t)x)
-#define POSH_U64( x ) ((posh_u64_t)x)
-#define POSH_I64_PRINTF_PREFIX "I64"
-#endif*/
-
-#ifdef FORCE_DOXYGEN
-typedef long long posh_i64_t;
-typedef unsigned long posh_u64_t;
-#  define POSH_64BIT_INTEGER
-#  define POSH_I64_PRINTF_PREFIX
-#  define POSH_I64(x)
-#  define POSH_U64(x)
-#endif
-
-/** Minimum value for a 64-bit signed integer */
-#define POSH_I64_MIN  POSH_I64(0x8000000000000000)
-/** Maximum value for a 64-bit signed integer */
-#define POSH_I64_MAX  POSH_I64(0x7FFFFFFFFFFFFFFF)
-/** Minimum value for a 64-bit unsigned integer */
-#define POSH_U64_MIN  POSH_U64(0)
-/** Maximum value for a 64-bit unsigned integer */
-#define POSH_U64_MAX  POSH_U64(0xFFFFFFFFFFFFFFFF)
-
-/* ----------------------------------------------------------------------------
-** Basic Sized Types
-**
-** These types are expected to be EXACTLY sized so you can use them for
-** serialization.
-** ----------------------------------------------------------------------------
-*/
-#define POSH_FALSE 0 
-#define POSH_TRUE  1 
-
-typedef int            posh_bool_t;
-typedef unsigned char  posh_byte_t;
-
-/* NOTE: These assume that CHAR_BIT is 8!! */
-typedef unsigned char  posh_u8_t;
-typedef signed char    posh_i8_t;
-
-#if defined POSH_USE_LIMITS_H
-#  if CHAR_BITS > 8
-#    error This machine uses 9-bit characters.  This is a warning, you can comment this out now.
-#  endif /* CHAR_BITS > 8 */
-
-/* 16-bit */
-#  if ( USHRT_MAX == 65535 ) 
-   typedef unsigned short posh_u16_t;
-   typedef short          posh_i16_t;
-#  else
-   /* Yes, in theory there could still be a 16-bit character type and shorts are
-      32-bits in size...if you find such an architecture, let me know =P */
-#    error No 16-bit type found
-#  endif
-
-/* 32-bit */
-#  if ( INT_MAX == 2147483647 )
-  typedef unsigned       posh_u32_t;
-  typedef int            posh_i32_t;
-#  elif ( LONG_MAX == 2147483647 )
-  typedef unsigned long  posh_u32_t;
-  typedef long           posh_i32_t;
-#  else
-      error No 32-bit type found
-#  endif
-
-#else /* POSH_USE_LIMITS_H */
-
-  typedef unsigned short posh_u16_t;
-  typedef short          posh_i16_t;
-
-#  if !defined POSH_OS_PALM
-  typedef unsigned       posh_u32_t;
-  typedef int            posh_i32_t;
-#  else
-  typedef unsigned long  posh_u32_t;
-  typedef long           posh_i32_t;
-#  endif
-#endif
-
-/** Minimum value for a byte */
-#define POSH_BYTE_MIN    0
-/** Maximum value for an 8-bit unsigned value */
-#define POSH_BYTE_MAX    255
-/** Minimum value for a byte */
-#define POSH_I16_MIN     ( ( posh_i16_t ) 0x8000 )
-/** Maximum value for a 16-bit signed value */
-#define POSH_I16_MAX     ( ( posh_i16_t ) 0x7FFF ) 
-/** Minimum value for a 16-bit unsigned value */
-#define POSH_U16_MIN     0
-/** Maximum value for a 16-bit unsigned value */
-#define POSH_U16_MAX     ( ( posh_u16_t ) 0xFFFF )
-/** Minimum value for a 32-bit signed value */
-#define POSH_I32_MIN     ( ( posh_i32_t ) 0x80000000 )
-/** Maximum value for a 32-bit signed value */
-#define POSH_I32_MAX     ( ( posh_i32_t ) 0x7FFFFFFF )
-/** Minimum value for a 32-bit unsigned value */
-#define POSH_U32_MIN     0
-/** Maximum value for a 32-bit unsigned value */
-#define POSH_U32_MAX     ( ( posh_u32_t ) 0xFFFFFFFF )
-
-/*
-** ----------------------------------------------------------------------------
-** Sanity checks on expected sizes
-** ----------------------------------------------------------------------------
-*/
-#if !defined FORCE_DOXYGEN
-
-POSH_COMPILE_TIME_ASSERT(posh_byte_t, sizeof(posh_byte_t) == 1);
-POSH_COMPILE_TIME_ASSERT(posh_u8_t, sizeof(posh_u8_t) == 1);
-POSH_COMPILE_TIME_ASSERT(posh_i8_t, sizeof(posh_i8_t) == 1);
-POSH_COMPILE_TIME_ASSERT(posh_u16_t, sizeof(posh_u16_t) == 2);
-POSH_COMPILE_TIME_ASSERT(posh_i16_t, sizeof(posh_i16_t) == 2);
-POSH_COMPILE_TIME_ASSERT(posh_u32_t, sizeof(posh_u32_t) == 4);
-POSH_COMPILE_TIME_ASSERT(posh_i32_t, sizeof(posh_i32_t) == 4);
-
-#if !defined POSH_NO_FLOAT
-   POSH_COMPILE_TIME_ASSERT(posh_testfloat_t, sizeof(float)==4 );
-   POSH_COMPILE_TIME_ASSERT(posh_testdouble_t, sizeof(double)==8);
-#endif
-
-#if defined POSH_64BIT_INTEGER
-   POSH_COMPILE_TIME_ASSERT(posh_u64_t, sizeof(posh_u64_t) == 8);
-   POSH_COMPILE_TIME_ASSERT(posh_i64_t, sizeof(posh_i64_t) == 8);
-#endif
-
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** 64-bit pointer support
-** ----------------------------------------------------------------------------
-*/
-#if defined POSH_CPU_AXP && ( defined POSH_OS_TRU64 || defined POSH_OS_LINUX )
-#  define POSH_64BIT_POINTER 1
-#endif
-
-#if defined POSH_CPU_X86_64 && defined POSH_OS_LINUX
-#  define POSH_64BIT_POINTER 1
-#endif
-
-#if defined POSH_CPU_SPARC64 || defined POSH_OS_WIN64 || defined __64BIT__ || defined __LP64 || defined _LP64 || defined __LP64__ || defined _ADDR64 || defined _CRAYC
-#   define POSH_64BIT_POINTER 1
-#endif
-
-#if defined POSH_64BIT_POINTER
-   POSH_COMPILE_TIME_ASSERT( posh_64bit_pointer, sizeof( void * ) == 8 );
-#elif !defined FORCE_DOXYGEN
-/* if this assertion is hit then you're on a system that either has 64-bit
-   addressing and we didn't catch it, or you're on a system with 16-bit
-   pointers.  In the latter case, POSH doesn't actually care, we're just
-   triggering this assertion to make sure you're aware of the situation,
-   so feel free to delete it.
-
-   If this assertion is triggered on a known 32 or 64-bit platform, 
-   please let us know (poshlib@poshlib.org) */
-   POSH_COMPILE_TIME_ASSERT( posh_32bit_pointer, sizeof( void * ) == 4 );
-#endif
-
-#if defined FORCE_DOXYGEN
-#  define POSH_64BIT_POINTER
-#endif
-
-/*
-** ----------------------------------------------------------------------------
-** POSH Utility Functions
-**
-** These are optional POSH utility functions that are not required if you don't
-** need anything except static checking of your host and target environment.
-** 
-** These functions are NOT wrapped with POSH_PUBLIC_API because I didn't want
-** to enforce their export if your own library is only using them internally.
-** ----------------------------------------------------------------------------
-*/
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-const char *POSH_GetArchString( void );
-
-#if !defined POSH_NO_FLOAT
-
-posh_u32_t  POSH_LittleFloatBits( float f );
-posh_u32_t  POSH_BigFloatBits( float f );
-float       POSH_FloatFromLittleBits( posh_u32_t bits );
-float       POSH_FloatFromBigBits( posh_u32_t bits );
-
-void        POSH_DoubleBits( double d, posh_byte_t dst[ 8 ] );
-double      POSH_DoubleFromBits( const posh_byte_t src[ 8 ] );
-
-/* unimplemented
-float      *POSH_WriteFloatToLittle( void *dst, float f );
-float      *POSH_WriteFloatToBig( void *dst, float f );
-float       POSH_ReadFloatFromLittle( const void *src );
-float       POSH_ReadFloatFromBig( const void *src );
-
-double     *POSH_WriteDoubleToLittle( void *dst, double d );
-double     *POSH_WriteDoubleToBig( void *dst, double d );
-double      POSH_ReadDoubleFromLittle( const void *src );
-double      POSH_ReadDoubleFromBig( const void *src );
-*/
-#endif /* !defined POSH_NO_FLOAT */
-
-#if defined FORCE_DOXYGEN
-#  define POSH_NO_FLOAT
-#  undef  POSH_NO_FLOAT
-#endif
-
-extern posh_u16_t  POSH_SwapU16( posh_u16_t u );
-extern posh_i16_t  POSH_SwapI16( posh_i16_t u );
-extern posh_u32_t  POSH_SwapU32( posh_u32_t u );
-extern posh_i32_t  POSH_SwapI32( posh_i32_t u );
-
-#if defined POSH_64BIT_INTEGER
-
-extern posh_u64_t  POSH_SwapU64( posh_u64_t u );
-extern posh_i64_t  POSH_SwapI64( posh_i64_t u );
-
-#endif /*POSH_64BIT_INTEGER */
-
-extern posh_u16_t *POSH_WriteU16ToLittle( void *dst, posh_u16_t value );
-extern posh_i16_t *POSH_WriteI16ToLittle( void *dst, posh_i16_t value );
-extern posh_u32_t *POSH_WriteU32ToLittle( void *dst, posh_u32_t value );
-extern posh_i32_t *POSH_WriteI32ToLittle( void *dst, posh_i32_t value );
-
-extern posh_u16_t *POSH_WriteU16ToBig( void *dst, posh_u16_t value );
-extern posh_i16_t *POSH_WriteI16ToBig( void *dst, posh_i16_t value );
-extern posh_u32_t *POSH_WriteU32ToBig( void *dst, posh_u32_t value );
-extern posh_i32_t *POSH_WriteI32ToBig( void *dst, posh_i32_t value );
-
-extern posh_u16_t  POSH_ReadU16FromLittle( const void *src );
-extern posh_i16_t  POSH_ReadI16FromLittle( const void *src );
-extern posh_u32_t  POSH_ReadU32FromLittle( const void *src );
-extern posh_i32_t  POSH_ReadI32FromLittle( const void *src );
-
-extern posh_u16_t  POSH_ReadU16FromBig( const void *src );
-extern posh_i16_t  POSH_ReadI16FromBig( const void *src );
-extern posh_u32_t  POSH_ReadU32FromBig( const void *src );
-extern posh_i32_t  POSH_ReadI32FromBig( const void *src );
-
-#if defined POSH_64BIT_INTEGER
-extern posh_u64_t *POSH_WriteU64ToLittle( void *dst, posh_u64_t value );
-extern posh_i64_t *POSH_WriteI64ToLittle( void *dst, posh_i64_t value );
-extern posh_u64_t *POSH_WriteU64ToBig( void *dst, posh_u64_t value );
-extern posh_i64_t *POSH_WriteI64ToBig( void *dst, posh_i64_t value );
-
-extern posh_u64_t  POSH_ReadU64FromLittle( const void *src );
-extern posh_i64_t  POSH_ReadI64FromLittle( const void *src );
-extern posh_u64_t  POSH_ReadU64FromBig( const void *src );
-extern posh_i64_t  POSH_ReadI64FromBig( const void *src );
-#endif /* POSH_64BIT_INTEGER */
-
-#if defined POSH_LITTLE_ENDIAN
-
-#  define POSH_LittleU16(x) (x)
-#  define POSH_LittleU32(x) (x)
-#  define POSH_LittleI16(x) (x)
-#  define POSH_LittleI32(x) (x)
-#  if defined POSH_64BIT_INTEGER
-#    define POSH_LittleU64(x) (x)
-#    define POSH_LittleI64(x) (x)
-#  endif /* defined POSH_64BIT_INTEGER */
-
-#  define POSH_BigU16(x) POSH_SwapU16(x)
-#  define POSH_BigU32(x) POSH_SwapU32(x)
-#  define POSH_BigI16(x) POSH_SwapI16(x)
-#  define POSH_BigI32(x) POSH_SwapI32(x)
-#  if defined POSH_64BIT_INTEGER
-#    define POSH_BigU64(x) POSH_SwapU64(x)
-#    define POSH_BigI64(x) POSH_SwapI64(x)
-#  endif /* defined POSH_64BIT_INTEGER */
-
-#else
-
-#  define POSH_BigU16(x) (x)
-#  define POSH_BigU32(x) (x)
-#  define POSH_BigI16(x) (x)
-#  define POSH_BigI32(x) (x)
-
-#  if defined POSH_64BIT_INTEGER
-#    define POSH_BigU64(x) (x)
-#    define POSH_BigI64(x) (x)
-#  endif /* POSH_64BIT_INTEGER */
-
-#  define POSH_LittleU16(x) POSH_SwapU16(x)
-#  define POSH_LittleU32(x) POSH_SwapU32(x)
-#  define POSH_LittleI16(x) POSH_SwapI16(x)
-#  define POSH_LittleI32(x) POSH_SwapI32(x)
-
-#  if defined POSH_64BIT_INTEGER
-#    define POSH_LittleU64(x) POSH_SwapU64(x)
-#    define POSH_LittleI64(x) POSH_SwapI64(x)
-#  endif /* POSH_64BIT_INTEGER */
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-
diff --git a/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp b/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp
deleted file mode 100644
index de1953db8a..0000000000
--- a/thirdparty/thekla_atlas/thekla/thekla_atlas.cpp
+++ /dev/null
@@ -1,288 +0,0 @@
-
-#include "thekla_atlas.h"
-
-#include <cfloat>
-// -- GODOT start --
-#include <stdio.h>
-// -- GODOT end --
-
-#include "nvmesh/halfedge/Edge.h"
-#include "nvmesh/halfedge/Mesh.h"
-#include "nvmesh/halfedge/Face.h"
-#include "nvmesh/halfedge/Vertex.h"
-#include "nvmesh/param/Atlas.h"
-
-#include "nvmath/Vector.inl"
-#include "nvmath/ftoi.h"
-
-#include "nvcore/Array.inl"
-
-
-using namespace Thekla;
-using namespace nv;
-
-
-inline Atlas_Output_Mesh * set_error(Atlas_Error * error, Atlas_Error code) {
-    if (error) *error = code;
-    return NULL;
-}
-
-
-
-static void input_to_mesh(const Atlas_Input_Mesh * input, HalfEdge::Mesh * mesh, Atlas_Error * error) {
-
-    Array<uint> canonicalMap;
-    canonicalMap.reserve(input->vertex_count);
-
-    for (int i = 0; i < input->vertex_count; i++) {
-        const Atlas_Input_Vertex & input_vertex = input->vertex_array[i];
-        const float * pos = input_vertex.position;
-        const float * nor = input_vertex.normal;
-        const float * tex = input_vertex.uv;
-
-        HalfEdge::Vertex * vertex = mesh->addVertex(Vector3(pos[0], pos[1], pos[2]));
-        vertex->nor.set(nor[0], nor[1], nor[2]);
-        vertex->tex.set(tex[0], tex[1]);
-
-        canonicalMap.append(input_vertex.first_colocal);
-    }
-
-    mesh->linkColocalsWithCanonicalMap(canonicalMap);
-
-
-    const int face_count = input->face_count;
-
-    int non_manifold_faces = 0;
-    for (int i = 0; i < face_count; i++) {
-        const Atlas_Input_Face & input_face = input->face_array[i];
-
-        int v0 = input_face.vertex_index[0];
-        int v1 = input_face.vertex_index[1];
-        int v2 = input_face.vertex_index[2];
-
-        HalfEdge::Face * face = mesh->addFace(v0, v1, v2);
-        if (face != NULL) {
-            face->material = input_face.material_index;
-        }
-        else {
-            non_manifold_faces++;
-        }
-    }
-
-    mesh->linkBoundary();
-
-    if (non_manifold_faces != 0 && error != NULL) {
-        *error = Atlas_Error_Invalid_Mesh_Non_Manifold;
-    }
-}
-
-static Atlas_Output_Mesh * mesh_atlas_to_output(const HalfEdge::Mesh * mesh, const Atlas & atlas, Atlas_Error * error) {
-
-    Atlas_Output_Mesh * output = new Atlas_Output_Mesh;
-
-    const MeshCharts * charts = atlas.meshAt(0);
-
-    // Allocate vertices.
-    const int vertex_count = charts->vertexCount();
-    output->vertex_count = vertex_count;
-    output->vertex_array = new Atlas_Output_Vertex[vertex_count];
-
-    int w = 0;
-    int h = 0;
-
-    // Output vertices.
-    const int chart_count = charts->chartCount();
-    for (int i = 0; i < chart_count; i++) {
-        const Chart * chart = charts->chartAt(i);
-        uint vertexOffset = charts->vertexCountBeforeChartAt(i);
-
-        const uint chart_vertex_count = chart->vertexCount();
-        for (uint v = 0; v < chart_vertex_count; v++) {
-            Atlas_Output_Vertex & output_vertex = output->vertex_array[vertexOffset + v]; 
-
-            uint original_vertex = chart->mapChartVertexToOriginalVertex(v);
-            output_vertex.xref = original_vertex;
-
-            Vector2 uv = chart->chartMesh()->vertexAt(v)->tex;
-            output_vertex.uv[0] = uv.x;
-            output_vertex.uv[1] = uv.y;
-            w = max(w, ftoi_ceil(uv.x));
-            h = max(h, ftoi_ceil(uv.y));
-        }
-    }
-
-    const int face_count = mesh->faceCount();
-    output->index_count = face_count * 3;
-    output->index_array = new int[face_count * 3];
-
-    // -- GODOT start --
-    int face_ofs = 0;
-    // Set face indices.
-    for (int f = 0; f < face_count; f++) {
-        uint c = charts->faceChartAt(f);
-        uint i = charts->faceIndexWithinChartAt(f);
-        uint vertexOffset = charts->vertexCountBeforeChartAt(c);
-
-        const Chart * chart = charts->chartAt(c);
-        nvDebugCheck(chart->faceAt(i) == f);
-
-        if (i >= chart->chartMesh()->faceCount()) {
-            printf("WARNING: Faces may be missing in the final vertex, which could not be packed\n");
-            continue;
-        }
-
-        const HalfEdge::Face * face = chart->chartMesh()->faceAt(i);
-        const HalfEdge::Edge * edge = face->edge;
-
-        //output->index_array[3*f+0] = vertexOffset + edge->vertex->id;
-        //output->index_array[3*f+1] = vertexOffset + edge->next->vertex->id;
-        //output->index_array[3*f+2] = vertexOffset + edge->next->next->vertex->id;
-        output->index_array[3 * face_ofs + 0] = vertexOffset + edge->vertex->id;
-        output->index_array[3 * face_ofs + 1] = vertexOffset + edge->next->vertex->id;
-        output->index_array[3 * face_ofs + 2] = vertexOffset + edge->next->next->vertex->id;
-        face_ofs++;
-    }
-
-    output->index_count = face_ofs * 3;
-    // -- GODOT end --
-
-    *error = Atlas_Error_Success;
-    output->atlas_width = w;
-    output->atlas_height = h;
-
-    return output;
-}
-
-
-void Thekla::atlas_set_default_options(Atlas_Options * options) {
-    if (options != NULL) {
-        // These are the default values we use on The Witness.
-
-        options->charter = Atlas_Charter_Default;
-        options->charter_options.witness.proxy_fit_metric_weight = 2.0f;
-        options->charter_options.witness.roundness_metric_weight = 0.01f;
-        options->charter_options.witness.straightness_metric_weight = 6.0f;
-        options->charter_options.witness.normal_seam_metric_weight = 4.0f;
-        options->charter_options.witness.texture_seam_metric_weight = 0.5f;
-        options->charter_options.witness.max_chart_area = FLT_MAX;
-        options->charter_options.witness.max_boundary_length = FLT_MAX;
-
-        options->mapper = Atlas_Mapper_Default;
-
-        options->packer = Atlas_Packer_Default;
-        options->packer_options.witness.packing_quality = 0;
-        options->packer_options.witness.texel_area = 8;
-        options->packer_options.witness.block_align = true;
-        options->packer_options.witness.conservative = false;
-    }
-}
-
-
-Atlas_Output_Mesh * Thekla::atlas_generate(const Atlas_Input_Mesh * input, const Atlas_Options * options, Atlas_Error * error) {
-    // Validate args.
-    if (input == NULL || options == NULL || error == NULL) return set_error(error, Atlas_Error_Invalid_Args);
-
-    // Validate options.
-    if (options->charter != Atlas_Charter_Witness) {
-        return set_error(error, Atlas_Error_Invalid_Options);
-    }
-    if (options->charter == Atlas_Charter_Witness) {
-        // @@ Validate input options!
-    }
-
-    if (options->mapper != Atlas_Mapper_LSCM) {
-        return set_error(error, Atlas_Error_Invalid_Options);
-    }
-    if (options->mapper == Atlas_Mapper_LSCM) {
-        // No options.
-    }
-
-    if (options->packer != Atlas_Packer_Witness) {
-        return set_error(error, Atlas_Error_Invalid_Options);
-    }
-    if (options->packer == Atlas_Packer_Witness) {
-        // @@ Validate input options!
-    }
-
-    // Validate input mesh.
-    for (int i = 0; i < input->face_count; i++) {
-        int v0 = input->face_array[i].vertex_index[0];
-        int v1 = input->face_array[i].vertex_index[1];
-        int v2 = input->face_array[i].vertex_index[2];
-
-        if (v0 < 0 || v0 >= input->vertex_count || 
-            v1 < 0 || v1 >= input->vertex_count || 
-            v2 < 0 || v2 >= input->vertex_count)
-        {
-            return set_error(error, Atlas_Error_Invalid_Mesh);
-        }
-    }
-
-
-    // Build half edge mesh.
-    AutoPtr<HalfEdge::Mesh> mesh(new HalfEdge::Mesh);
-
-    input_to_mesh(input, mesh.ptr(), error);
-
-    if (*error == Atlas_Error_Invalid_Mesh) {
-        return NULL;
-    }
-
-    Atlas atlas;
-
-    // Charter.
-    if (options->charter == Atlas_Charter_Extract) {
-        return set_error(error, Atlas_Error_Not_Implemented);
-    }
-    else if (options->charter == Atlas_Charter_Witness) {
-        SegmentationSettings segmentation_settings;
-        segmentation_settings.proxyFitMetricWeight = options->charter_options.witness.proxy_fit_metric_weight;
-        segmentation_settings.roundnessMetricWeight = options->charter_options.witness.roundness_metric_weight;
-        segmentation_settings.straightnessMetricWeight = options->charter_options.witness.straightness_metric_weight;
-        segmentation_settings.normalSeamMetricWeight = options->charter_options.witness.normal_seam_metric_weight;
-        segmentation_settings.textureSeamMetricWeight = options->charter_options.witness.texture_seam_metric_weight;
-        segmentation_settings.maxChartArea = options->charter_options.witness.max_chart_area;
-        segmentation_settings.maxBoundaryLength = options->charter_options.witness.max_boundary_length;
-
-        Array<uint> uncharted_materials;
-        atlas.computeCharts(mesh.ptr(), segmentation_settings, uncharted_materials);
-    }
-    
-    if (atlas.hasFailed())
-        return NULL;
-
-    // Mapper.
-    if (options->mapper == Atlas_Mapper_LSCM) {
-        atlas.parameterizeCharts();
-    }
-
-    if (atlas.hasFailed())
-        return NULL;
-
-    // Packer.
-    if (options->packer == Atlas_Packer_Witness) {
-        int packing_quality = options->packer_options.witness.packing_quality;
-        float texel_area = options->packer_options.witness.texel_area;
-        int block_align = options->packer_options.witness.block_align;
-        int conservative = options->packer_options.witness.conservative;
-
-        /*float utilization =*/ atlas.packCharts(packing_quality, texel_area, block_align, conservative);
-    }
-    
-    if (atlas.hasFailed())
-        return NULL;
-
-
-    // Build output mesh.
-    return mesh_atlas_to_output(mesh.ptr(), atlas, error);
-}
-
-
-void Thekla::atlas_free(Atlas_Output_Mesh * output) {
-    if (output != NULL) {
-        delete [] output->vertex_array;
-        delete [] output->index_array;
-        delete output;
-    }
-}
-
diff --git a/thirdparty/thekla_atlas/thekla/thekla_atlas.h b/thirdparty/thekla_atlas/thekla/thekla_atlas.h
deleted file mode 100644
index 1d0716e781..0000000000
--- a/thirdparty/thekla_atlas/thekla/thekla_atlas.h
+++ /dev/null
@@ -1,116 +0,0 @@
-
-// Thekla Atlas Generator
-
-namespace Thekla {
-
-enum Atlas_Charter {
-    Atlas_Charter_Witness,  // Options: threshold
-    Atlas_Charter_Extract,  // Options: ---
-    Atlas_Charter_Default = Atlas_Charter_Witness
-};
-
-enum Atlas_Mapper {
-    Atlas_Mapper_LSCM,      // Options: ---
-    Atlas_Mapper_Default = Atlas_Mapper_LSCM
-};
-
-enum Atlas_Packer {
-    Atlas_Packer_Witness,   // Options: texel_area
-    Atlas_Packer_Default = Atlas_Packer_Witness
-};
-
-struct Atlas_Options {
-    Atlas_Charter charter;
-    union {
-        struct {
-            float proxy_fit_metric_weight;
-            float roundness_metric_weight;
-            float straightness_metric_weight;
-            float normal_seam_metric_weight;
-            float texture_seam_metric_weight;
-            float max_chart_area;
-            float max_boundary_length;
-        } witness;
-        struct {
-        } extract;
-    } charter_options;
-
-    Atlas_Mapper mapper;
-    union {
-    } mapper_options;
-
-    Atlas_Packer packer;
-    union {
-        struct {
-            int packing_quality;
-            float texel_area;       // This is not really texel area, but 1 / texel width?
-            bool block_align;       // Align charts to 4x4 blocks. 
-            bool conservative;      // Pack charts with extra padding.
-        } witness;
-    } packer_options;
-};
-
-struct Atlas_Input_Vertex {
-    float position[3];
-    float normal[3];
-    float uv[2];
-    int first_colocal;
-};
-
-struct Atlas_Input_Face {
-    int vertex_index[3];
-    int material_index;
-};
-
-struct Atlas_Input_Mesh {
-    int vertex_count;
-    int face_count;
-    Atlas_Input_Vertex * vertex_array;
-    Atlas_Input_Face * face_array;
-};
-
-struct Atlas_Output_Vertex {
-    float uv[2];
-    int xref;   // Index of input vertex from which this output vertex originated.
-};
-
-struct Atlas_Output_Mesh {
-    int atlas_width;
-    int atlas_height;
-    int vertex_count;
-    int index_count;
-    Atlas_Output_Vertex * vertex_array;
-    int * index_array;
-};
-
-enum Atlas_Error {
-    Atlas_Error_Success,
-    Atlas_Error_Invalid_Args,
-    Atlas_Error_Invalid_Options,
-    Atlas_Error_Invalid_Mesh,
-    Atlas_Error_Invalid_Mesh_Non_Manifold,
-    Atlas_Error_Not_Implemented,
-};
-
-void atlas_set_default_options(Atlas_Options * options);
-
-Atlas_Output_Mesh * atlas_generate(const Atlas_Input_Mesh * input, const Atlas_Options * options, Atlas_Error * error);
-
-void atlas_free(Atlas_Output_Mesh * output);
-
-
-/*
-
-Should we represent the input mesh with an opaque structure that simply holds pointers to the user data? That would allow us to avoid having to copy attributes to an intermediate representation.
-
-struct Atlas_Input_Mesh;
-
-void mesh_set_vertex_position(Atlas_Input_Mesh * mesh, float * ptr, int stride);
-void mesh_set_vertex_normal(Atlas_Input_Mesh * mesh, float * ptr, int stride);
-void mesh_set_vertex_uv(Mesh * mesh, float * ptr, int stride);
-
-void mesh_set_index(Mesh * mesh, int * ptr);
-*/
-
-} // Thekla namespace
-
diff --git a/thirdparty/vhacd/0001-bullet-namespace.patch b/thirdparty/vhacd/0001-bullet-namespace.patch
new file mode 100644
index 0000000000..cfb1ffeff0
--- /dev/null
+++ b/thirdparty/vhacd/0001-bullet-namespace.patch
@@ -0,0 +1,213 @@
+diff --git a/thirdparty/vhacd/inc/btAlignedAllocator.h b/thirdparty/vhacd/inc/btAlignedAllocator.h
+index 11f6e12dc..94e71d512 100644
+--- a/thirdparty/vhacd/inc/btAlignedAllocator.h
++++ b/thirdparty/vhacd/inc/btAlignedAllocator.h
+@@ -21,6 +21,11 @@ subject to the following restrictions:
+ ///that is better portable and more predictable
+ 
+ #include "btScalar.h"
++
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ //#define BT_DEBUG_MEMORY_ALLOCATIONS 1
+ #ifdef BT_DEBUG_MEMORY_ALLOCATIONS
+ 
+@@ -101,4 +106,8 @@ public:
+     friend bool operator==(const self_type&, const self_type&) { return true; }
+ };
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_ALIGNED_ALLOCATOR
+diff --git a/thirdparty/vhacd/inc/btAlignedObjectArray.h b/thirdparty/vhacd/inc/btAlignedObjectArray.h
+index e6620adf6..1ce03d21b 100644
+--- a/thirdparty/vhacd/inc/btAlignedObjectArray.h
++++ b/thirdparty/vhacd/inc/btAlignedObjectArray.h
+@@ -38,6 +38,10 @@ subject to the following restrictions:
+ #include <new> //for placement new
+ #endif //BT_USE_PLACEMENT_NEW
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ ///The btAlignedObjectArray template class uses a subset of the stl::vector interface for its methods
+ ///It is developed to replace stl::vector to avoid portability issues, including STL alignment issues to add SIMD/SSE data
+ template <typename T>
+@@ -445,4 +449,8 @@ public:
+     }
+ };
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_OBJECT_ARRAY__
+diff --git a/thirdparty/vhacd/inc/btConvexHullComputer.h b/thirdparty/vhacd/inc/btConvexHullComputer.h
+index 3c5075c2c..04bb96f64 100644
+--- a/thirdparty/vhacd/inc/btConvexHullComputer.h
++++ b/thirdparty/vhacd/inc/btConvexHullComputer.h
+@@ -18,6 +18,10 @@ subject to the following restrictions:
+ #include "btAlignedObjectArray.h"
+ #include "btVector3.h"
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ /// Convex hull implementation based on Preparata and Hong
+ /// See http://code.google.com/p/bullet/issues/detail?id=275
+ /// Ole Kniemeyer, MAXON Computer GmbH
+@@ -94,4 +98,8 @@ public:
+     }
+ };
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_CONVEX_HULL_COMPUTER_H
+diff --git a/thirdparty/vhacd/inc/btMinMax.h b/thirdparty/vhacd/inc/btMinMax.h
+index 40b0ceb6e..9bc1e1c77 100644
+--- a/thirdparty/vhacd/inc/btMinMax.h
++++ b/thirdparty/vhacd/inc/btMinMax.h
+@@ -17,6 +17,10 @@ subject to the following restrictions:
+ 
+ #include "btScalar.h"
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ template <class T>
+ SIMD_FORCE_INLINE const T& btMin(const T& a, const T& b)
+ {
+@@ -62,4 +66,8 @@ SIMD_FORCE_INLINE void btClamp(T& a, const T& lb, const T& ub)
+     }
+ }
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_GEN_MINMAX_H
+diff --git a/thirdparty/vhacd/inc/btScalar.h b/thirdparty/vhacd/inc/btScalar.h
+index b814474bd..617fd7c44 100644
+--- a/thirdparty/vhacd/inc/btScalar.h
++++ b/thirdparty/vhacd/inc/btScalar.h
+@@ -28,11 +28,19 @@ subject to the following restrictions:
+ /* SVN $Revision$ on $Date$ from http://bullet.googlecode.com*/
+ #define BT_BULLET_VERSION 279
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ inline int32_t btGetVersion()
+ {
+     return BT_BULLET_VERSION;
+ }
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #if defined(DEBUG) || defined(_DEBUG)
+ #define BT_DEBUG
+ #endif
+@@ -199,6 +207,10 @@ inline int32_t btGetVersion()
+ #endif //__CELLOS_LV2__
+ #endif
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ ///The btScalar type abstracts floating point numbers, to easily switch between double and single floating point precision.
+ #if defined(BT_USE_DOUBLE_PRECISION)
+ typedef double btScalar;
+@@ -530,4 +542,9 @@ struct btTypedObject {
+         return m_objectType;
+     }
+ };
++
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_SCALAR_H
+diff --git a/thirdparty/vhacd/inc/btVector3.h b/thirdparty/vhacd/inc/btVector3.h
+index 0f2fefbbd..4ed971673 100644
+--- a/thirdparty/vhacd/inc/btVector3.h
++++ b/thirdparty/vhacd/inc/btVector3.h
+@@ -26,6 +26,10 @@ subject to the following restrictions:
+ #define btVector3DataName "btVector3FloatData"
+ #endif //BT_USE_DOUBLE_PRECISION
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ /**@brief btVector3 can be used to represent 3D points and vectors.
+  * It has an un-used w component to suit 16-byte alignment when btVector3 is stored in containers. This extra component can be used by derived classes (Quaternion?) or by user
+  * Ideally, this class should be replaced by a platform optimized SIMD version that keeps the data in registers
+@@ -712,4 +716,8 @@ SIMD_FORCE_INLINE void btVector3::deSerialize(const struct btVector3Data& dataIn
+         m_floats[i] = dataIn.m_floats[i];
+ }
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_VECTOR3_H
+diff --git a/thirdparty/vhacd/src/btAlignedAllocator.cpp b/thirdparty/vhacd/src/btAlignedAllocator.cpp
+index 11d594f6c..ce0e7f26f 100644
+--- a/thirdparty/vhacd/src/btAlignedAllocator.cpp
++++ b/thirdparty/vhacd/src/btAlignedAllocator.cpp
+@@ -15,6 +15,10 @@ subject to the following restrictions:
+ 
+ #include "btAlignedAllocator.h"
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ #ifdef _MSC_VER
+ #pragma warning(disable:4311 4302)
+ #endif
+@@ -177,4 +181,8 @@ void btAlignedFreeInternal(void* ptr)
+     sAlignedFreeFunc(ptr);
+ }
+ 
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
++
+ #endif //BT_DEBUG_MEMORY_ALLOCATIONS
+diff --git a/thirdparty/vhacd/src/btConvexHullComputer.cpp b/thirdparty/vhacd/src/btConvexHullComputer.cpp
+index d3d749adb..8ab34af2a 100644
+--- a/thirdparty/vhacd/src/btConvexHullComputer.cpp
++++ b/thirdparty/vhacd/src/btConvexHullComputer.cpp
+@@ -49,6 +49,10 @@ typedef unsigned long long int32_t uint64_t;
+ #include <stdio.h>
+ #endif
+ 
++// -- GODOT start --
++namespace VHACD {
++// -- GODOT end --
++
+ // Convex hull implementation based on Preparata and Hong
+ // Ole Kniemeyer, MAXON Computer GmbH
+ class btConvexHullInternal {
+@@ -2477,3 +2481,7 @@ btScalar btConvexHullComputer::compute(const void* coords, bool doubleCoords, in
+ 
+     return shift;
+ }
++
++// -- GODOT start --
++}; // namespace VHACD
++// -- GODOT end --
diff --git a/thirdparty/vhacd/0002-fpermissive-fix.patch b/thirdparty/vhacd/0002-fpermissive-fix.patch
new file mode 100644
index 0000000000..965df2944a
--- /dev/null
+++ b/thirdparty/vhacd/0002-fpermissive-fix.patch
@@ -0,0 +1,53 @@
+diff --git a/thirdparty/vhacd/inc/btScalar.h b/thirdparty/vhacd/inc/btScalar.h
+index 487205062..52297cd78 100644
+--- a/thirdparty/vhacd/inc/btScalar.h
++++ b/thirdparty/vhacd/inc/btScalar.h
+@@ -535,6 +535,29 @@ struct btTypedObject {
+     }
+ };
+ 
++// -- GODOT start --
++// Cherry-picked from Bullet 2.88 to fix GH-27926
++///align a pointer to the provided alignment, upwards
++template <typename T>
++T *btAlignPointer(T *unalignedPtr, size_t alignment)
++{
++    struct btConvertPointerSizeT
++    {
++        union {
++            T *ptr;
++            size_t integer;
++        };
++    };
++    btConvertPointerSizeT converter;
++
++    const size_t bit_mask = ~(alignment - 1);
++    converter.ptr = unalignedPtr;
++    converter.integer += alignment - 1;
++    converter.integer &= bit_mask;
++    return converter.ptr;
++}
++// -- GODOT end --
++
+ // -- GODOT start --
+ }; // namespace VHACD
+ // -- GODOT end --
+diff --git a/thirdparty/vhacd/src/btAlignedAllocator.cpp b/thirdparty/vhacd/src/btAlignedAllocator.cpp
+index ce0e7f26f..8dee31e7e 100644
+--- a/thirdparty/vhacd/src/btAlignedAllocator.cpp
++++ b/thirdparty/vhacd/src/btAlignedAllocator.cpp
+@@ -72,8 +72,12 @@ static inline void* btAlignedAllocDefault(size_t size, int32_t alignment)
+ 
+     real = (char*)sAllocFunc(size + sizeof(void*) + (alignment - 1));
+     if (real) {
+-        offset = (alignment - (unsigned long)(real + sizeof(void*))) & (alignment - 1);
+-        ret = (void*)((real + sizeof(void*)) + offset);
++        // -- GODOT start --
++        // Synced with Bullet 2.88 to fix GH-27926
++        //offset = (alignment - (unsigned long)(real + sizeof(void*))) & (alignment - 1);
++        //ret = (void*)((real + sizeof(void*)) + offset);
++        ret = btAlignPointer(real + sizeof(void *), alignment);
++        // -- GODOT end --
+         *((void**)(ret)-1) = (void*)(real);
+     }
+     else {
diff --git a/thirdparty/vhacd/LICENSE b/thirdparty/vhacd/LICENSE
new file mode 100644
index 0000000000..efc7f64399
--- /dev/null
+++ b/thirdparty/vhacd/LICENSE
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2011, Khaled Mamou (kmamou at gmail dot com)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/thirdparty/vhacd/inc/FloatMath.h b/thirdparty/vhacd/inc/FloatMath.h
new file mode 100644
index 0000000000..37b07cb69f
--- /dev/null
+++ b/thirdparty/vhacd/inc/FloatMath.h
@@ -0,0 +1,525 @@
+#ifndef FLOAT_MATH_LIB_H
+
+#define FLOAT_MATH_LIB_H
+
+
+#include <float.h>
+#include <stdint.h>
+
+namespace FLOAT_MATH
+{
+
+enum FM_ClipState
+{
+  FMCS_XMIN       = (1<<0),
+  FMCS_XMAX       = (1<<1),
+  FMCS_YMIN       = (1<<2),
+  FMCS_YMAX       = (1<<3),
+  FMCS_ZMIN       = (1<<4),
+  FMCS_ZMAX       = (1<<5),
+};
+
+enum FM_Axis
+{
+  FM_XAXIS   = (1<<0),
+  FM_YAXIS   = (1<<1),
+  FM_ZAXIS   = (1<<2)
+};
+
+enum LineSegmentType
+{
+  LS_START,
+  LS_MIDDLE,
+  LS_END
+};
+
+
+const float FM_PI = 3.1415926535897932384626433832795028841971693993751f;
+const float FM_DEG_TO_RAD = ((2.0f * FM_PI) / 360.0f);
+const float FM_RAD_TO_DEG = (360.0f / (2.0f * FM_PI));
+
+//***************** Float versions
+//***
+//*** vectors are assumed to be 3 floats or 3 doubles representing X, Y, Z
+//*** quaternions are assumed to be 4 floats or 4 doubles representing X,Y,Z,W
+//*** matrices are assumed to be 16 floats or 16 doubles representing a standard D3D or OpenGL style 4x4 matrix
+//*** bounding volumes are expressed as two sets of 3 floats/double representing bmin(x,y,z) and bmax(x,y,z)
+//*** Plane equations are assumed to be 4 floats or 4 doubles representing Ax,By,Cz,D
+
+FM_Axis fm_getDominantAxis(const float normal[3]);
+FM_Axis fm_getDominantAxis(const double normal[3]);
+
+void fm_decomposeTransform(const float local_transform[16],float trans[3],float rot[4],float scale[3]);
+void fm_decomposeTransform(const double local_transform[16],double trans[3],double rot[4],double scale[3]);
+
+void  fm_multiplyTransform(const float *pA,const float *pB,float *pM);
+void  fm_multiplyTransform(const double *pA,const double *pB,double *pM);
+
+void  fm_inverseTransform(const float matrix[16],float inverse_matrix[16]);
+void  fm_inverseTransform(const double matrix[16],double inverse_matrix[16]);
+
+void  fm_identity(float matrix[16]); // set 4x4 matrix to identity.
+void  fm_identity(double matrix[16]); // set 4x4 matrix to identity.
+
+void  fm_inverseRT(const float matrix[16], const float pos[3], float t[3]); // inverse rotate translate the point.
+void  fm_inverseRT(const double matrix[16],const double pos[3],double t[3]); // inverse rotate translate the point.
+
+void  fm_transform(const float matrix[16], const float pos[3], float t[3]); // rotate and translate this point.
+void  fm_transform(const double matrix[16],const double pos[3],double t[3]); // rotate and translate this point.
+
+float  fm_getDeterminant(const float matrix[16]);
+double fm_getDeterminant(const double matrix[16]);
+
+void fm_getSubMatrix(int32_t ki,int32_t kj,float pDst[16],const float matrix[16]);
+void fm_getSubMatrix(int32_t ki,int32_t kj,double pDst[16],const float matrix[16]);
+
+void  fm_rotate(const float matrix[16],const float pos[3],float t[3]); // only rotate the point by a 4x4 matrix, don't translate.
+void  fm_rotate(const double matri[16],const double pos[3],double t[3]); // only rotate the point by a 4x4 matrix, don't translate.
+
+void  fm_eulerToMatrix(float ax,float ay,float az,float matrix[16]); // convert euler (in radians) to a dest 4x4 matrix (translation set to zero)
+void  fm_eulerToMatrix(double ax,double ay,double az,double matrix[16]); // convert euler (in radians) to a dest 4x4 matrix (translation set to zero)
+
+void  fm_getAABB(uint32_t vcount,const float *points,uint32_t pstride,float bmin[3],float bmax[3]);
+void  fm_getAABB(uint32_t vcount,const double *points,uint32_t pstride,double bmin[3],double bmax[3]);
+
+void  fm_getAABBCenter(const float bmin[3],const float bmax[3],float center[3]);
+void  fm_getAABBCenter(const double bmin[3],const double bmax[3],double center[3]);
+
+void fm_transformAABB(const float bmin[3],const float bmax[3],const float matrix[16],float tbmin[3],float tbmax[3]);
+void fm_transformAABB(const double bmin[3],const double bmax[3],const double matrix[16],double tbmin[3],double tbmax[3]);
+
+void  fm_eulerToQuat(float x,float y,float z,float quat[4]); // convert euler angles to quaternion.
+void  fm_eulerToQuat(double x,double y,double z,double quat[4]); // convert euler angles to quaternion.
+
+void  fm_quatToEuler(const float quat[4],float &ax,float &ay,float &az);
+void  fm_quatToEuler(const double quat[4],double &ax,double &ay,double &az);
+
+void  fm_eulerToQuat(const float euler[3],float quat[4]); // convert euler angles to quaternion. Angles must be radians not degrees!
+void  fm_eulerToQuat(const double euler[3],double quat[4]); // convert euler angles to quaternion.
+
+void  fm_scale(float x,float y,float z,float matrix[16]); // apply scale to the matrix.
+void  fm_scale(double x,double y,double z,double matrix[16]); // apply scale to the matrix.
+
+void  fm_eulerToQuatDX(float x,float y,float z,float quat[4]); // convert euler angles to quaternion using the fucked up DirectX method
+void  fm_eulerToQuatDX(double x,double y,double z,double quat[4]); // convert euler angles to quaternion using the fucked up DirectX method
+
+void  fm_eulerToMatrixDX(float x,float y,float z,float matrix[16]); // convert euler angles to quaternion using the fucked up DirectX method.
+void  fm_eulerToMatrixDX(double x,double y,double z,double matrix[16]); // convert euler angles to quaternion using the fucked up DirectX method.
+
+void  fm_quatToMatrix(const float quat[4],float matrix[16]); // convert quaterinion rotation to matrix, translation set to zero.
+void  fm_quatToMatrix(const double quat[4],double matrix[16]); // convert quaterinion rotation to matrix, translation set to zero.
+
+void  fm_quatRotate(const float quat[4],const float v[3],float r[3]); // rotate a vector directly by a quaternion.
+void  fm_quatRotate(const double quat[4],const double v[3],double r[3]); // rotate a vector directly by a quaternion.
+
+void  fm_getTranslation(const float matrix[16],float t[3]);
+void  fm_getTranslation(const double matrix[16],double t[3]);
+
+void  fm_setTranslation(const float *translation,float matrix[16]);
+void  fm_setTranslation(const double *translation,double matrix[16]);
+
+void  fm_multiplyQuat(const float *qa,const float *qb,float *quat);
+void  fm_multiplyQuat(const double *qa,const double *qb,double *quat);
+
+void  fm_matrixToQuat(const float matrix[16],float quat[4]); // convert the 3x3 portion of a 4x4 matrix into a quaterion as x,y,z,w
+void  fm_matrixToQuat(const double matrix[16],double quat[4]); // convert the 3x3 portion of a 4x4 matrix into a quaterion as x,y,z,w
+
+float fm_sphereVolume(float radius); // return's the volume of a sphere of this radius (4/3 PI * R cubed )
+double fm_sphereVolume(double radius); // return's the volume of a sphere of this radius (4/3 PI * R cubed )
+
+float fm_cylinderVolume(float radius,float h);
+double fm_cylinderVolume(double radius,double h);
+
+float fm_capsuleVolume(float radius,float h);
+double fm_capsuleVolume(double radius,double h);
+
+float fm_distance(const float p1[3],const float p2[3]);
+double fm_distance(const double p1[3],const double p2[3]);
+
+float fm_distanceSquared(const float p1[3],const float p2[3]);
+double fm_distanceSquared(const double p1[3],const double p2[3]);
+
+float fm_distanceSquaredXZ(const float p1[3],const float p2[3]);
+double fm_distanceSquaredXZ(const double p1[3],const double p2[3]);
+
+float fm_computePlane(const float p1[3],const float p2[3],const float p3[3],float *n); // return D
+double fm_computePlane(const double p1[3],const double p2[3],const double p3[3],double *n); // return D
+
+float fm_distToPlane(const float plane[4],const float pos[3]); // computes the distance of this point from the plane.
+double fm_distToPlane(const double plane[4],const double pos[3]); // computes the distance of this point from the plane.
+
+float fm_dot(const float p1[3],const float p2[3]);
+double fm_dot(const double p1[3],const double p2[3]);
+
+void  fm_cross(float cross[3],const float a[3],const float b[3]);
+void  fm_cross(double cross[3],const double a[3],const double b[3]);
+
+float  fm_computeNormalVector(float n[3],const float p1[3],const float p2[3]); // as P2-P1 normalized.
+double  fm_computeNormalVector(double n[3],const double p1[3],const double p2[3]); // as P2-P1 normalized.
+
+bool  fm_computeWindingOrder(const float p1[3],const float p2[3],const float p3[3]); // returns true if the triangle is clockwise.
+bool  fm_computeWindingOrder(const double p1[3],const double p2[3],const double p3[3]); // returns true if the triangle is clockwise.
+
+float  fm_normalize(float n[3]); // normalize this vector and return the distance
+double  fm_normalize(double n[3]); // normalize this vector and return the distance
+
+float  fm_normalizeQuat(float n[4]); // normalize this quat
+double  fm_normalizeQuat(double n[4]); // normalize this quat
+
+void  fm_matrixMultiply(const float A[16],const float B[16],float dest[16]);
+void  fm_matrixMultiply(const double A[16],const double B[16],double dest[16]);
+
+void  fm_composeTransform(const float position[3],const float quat[4],const float scale[3],float matrix[16]);
+void  fm_composeTransform(const double position[3],const double quat[4],const double scale[3],double matrix[16]);
+
+float fm_computeArea(const float p1[3],const float p2[3],const float p3[3]);
+double fm_computeArea(const double p1[3],const double p2[3],const double p3[3]);
+
+void  fm_lerp(const float p1[3],const float p2[3],float dest[3],float lerpValue);
+void  fm_lerp(const double p1[3],const double p2[3],double dest[3],double lerpValue);
+
+bool  fm_insideTriangleXZ(const float test[3],const float p1[3],const float p2[3],const float p3[3]);
+bool  fm_insideTriangleXZ(const double test[3],const double p1[3],const double p2[3],const double p3[3]);
+
+bool  fm_insideAABB(const float pos[3],const float bmin[3],const float bmax[3]);
+bool  fm_insideAABB(const double pos[3],const double bmin[3],const double bmax[3]);
+
+bool  fm_insideAABB(const float obmin[3],const float obmax[3],const float tbmin[3],const float tbmax[3]); // test if bounding box tbmin/tmbax is fully inside obmin/obmax
+bool  fm_insideAABB(const double obmin[3],const double obmax[3],const double tbmin[3],const double tbmax[3]); // test if bounding box tbmin/tmbax is fully inside obmin/obmax
+
+uint32_t fm_clipTestPoint(const float bmin[3],const float bmax[3],const float pos[3]);
+uint32_t fm_clipTestPoint(const double bmin[3],const double bmax[3],const double pos[3]);
+
+uint32_t fm_clipTestPointXZ(const float bmin[3],const float bmax[3],const float pos[3]); // only tests X and Z, not Y
+uint32_t fm_clipTestPointXZ(const double bmin[3],const double bmax[3],const double pos[3]); // only tests X and Z, not Y
+
+
+uint32_t fm_clipTestAABB(const float bmin[3],const float bmax[3],const float p1[3],const float p2[3],const float p3[3],uint32_t &andCode);
+uint32_t fm_clipTestAABB(const double bmin[3],const double bmax[3],const double p1[3],const double p2[3],const double p3[3],uint32_t &andCode);
+
+
+bool     fm_lineTestAABBXZ(const float p1[3],const float p2[3],const float bmin[3],const float bmax[3],float &time);
+bool     fm_lineTestAABBXZ(const double p1[3],const double p2[3],const double bmin[3],const double bmax[3],double &time);
+
+bool     fm_lineTestAABB(const float p1[3],const float p2[3],const float bmin[3],const float bmax[3],float &time);
+bool     fm_lineTestAABB(const double p1[3],const double p2[3],const double bmin[3],const double bmax[3],double &time);
+
+
+void  fm_initMinMax(const float p[3],float bmin[3],float bmax[3]);
+void  fm_initMinMax(const double p[3],double bmin[3],double bmax[3]);
+
+void  fm_initMinMax(float bmin[3],float bmax[3]);
+void  fm_initMinMax(double bmin[3],double bmax[3]);
+
+void  fm_minmax(const float p[3],float bmin[3],float bmax[3]); // accumulate to a min-max value
+void  fm_minmax(const double p[3],double bmin[3],double bmax[3]); // accumulate to a min-max value
+
+// Computes the diagonal length of the bounding box and then inflates the bounding box on all sides
+// by the ratio provided.
+void fm_inflateMinMax(float bmin[3], float bmax[3], float ratio);
+void fm_inflateMinMax(double bmin[3], double bmax[3], double ratio);
+
+float fm_solveX(const float plane[4],float y,float z); // solve for X given this plane equation and the other two components.
+double fm_solveX(const double plane[4],double y,double z); // solve for X given this plane equation and the other two components.
+
+float fm_solveY(const float plane[4],float x,float z); // solve for Y given this plane equation and the other two components.
+double fm_solveY(const double plane[4],double x,double z); // solve for Y given this plane equation and the other two components.
+
+float fm_solveZ(const float plane[4],float x,float y); // solve for Z given this plane equation and the other two components.
+double fm_solveZ(const double plane[4],double x,double y); // solve for Z given this plane equation and the other two components.
+
+bool  fm_computeBestFitPlane(uint32_t vcount,     // number of input data points
+	const float *points,     // starting address of points array.
+	uint32_t vstride,    // stride between input points.
+	const float *weights,    // *optional point weighting values.
+	uint32_t wstride,    // weight stride for each vertex.
+	float plane[4],		// Best fit plane equation
+	float center[3]);  // Best fit weighted center of input points
+
+bool  fm_computeBestFitPlane(uint32_t vcount,     // number of input data points
+	const double *points,     // starting address of points array.
+	uint32_t vstride,    // stride between input points.
+	const double *weights,    // *optional point weighting values.
+	uint32_t wstride,    // weight stride for each vertex.
+	double plane[4],
+	double center[3]); 
+
+// Computes the average center of a set of data points
+bool  fm_computeCentroid(uint32_t vcount,     // number of input data points
+						 const float *points,     // starting address of points array.
+						 float *center);
+
+bool  fm_computeCentroid(uint32_t vcount,     // number of input data points
+						 const double *points,     // starting address of points array.
+						 double *center);
+
+// Compute centroid of a triangle mesh; takes area of each triangle into account
+// weighted average
+bool  fm_computeCentroid(uint32_t vcount,     // number of input data points
+						const float *points,     // starting address of points array.
+						uint32_t triangleCount,
+						const uint32_t *indices,
+						float *center);
+
+// Compute centroid of a triangle mesh; takes area of each triangle into account
+// weighted average
+bool  fm_computeCentroid(uint32_t vcount,     // number of input data points
+	const double *points,     // starting address of points array.
+	uint32_t triangleCount,
+	const uint32_t *indices,
+	double *center);
+
+
+float  fm_computeBestFitAABB(uint32_t vcount,const float *points,uint32_t pstride,float bmin[3],float bmax[3]); // returns the diagonal distance
+double fm_computeBestFitAABB(uint32_t vcount,const double *points,uint32_t pstride,double bmin[3],double bmax[3]); // returns the diagonal distance
+
+float  fm_computeBestFitSphere(uint32_t vcount,const float *points,uint32_t pstride,float center[3]);
+double  fm_computeBestFitSphere(uint32_t vcount,const double *points,uint32_t pstride,double center[3]);
+
+bool fm_lineSphereIntersect(const float center[3],float radius,const float p1[3],const float p2[3],float intersect[3]);
+bool fm_lineSphereIntersect(const double center[3],double radius,const double p1[3],const double p2[3],double intersect[3]);
+
+bool fm_intersectRayAABB(const float bmin[3],const float bmax[3],const float pos[3],const float dir[3],float intersect[3]);
+bool fm_intersectLineSegmentAABB(const float bmin[3],const float bmax[3],const float p1[3],const float p2[3],float intersect[3]);
+
+bool fm_lineIntersectsTriangle(const float rayStart[3],const float rayEnd[3],const float p1[3],const float p2[3],const float p3[3],float sect[3]);
+bool fm_lineIntersectsTriangle(const double rayStart[3],const double rayEnd[3],const double p1[3],const double p2[3],const double p3[3],double sect[3]);
+
+bool fm_rayIntersectsTriangle(const float origin[3],const float dir[3],const float v0[3],const float v1[3],const float v2[3],float &t);
+bool fm_rayIntersectsTriangle(const double origin[3],const double dir[3],const double v0[3],const double v1[3],const double v2[3],double &t);
+
+bool fm_raySphereIntersect(const float center[3],float radius,const float pos[3],const float dir[3],float distance,float intersect[3]);
+bool fm_raySphereIntersect(const double center[3],double radius,const double pos[3],const double dir[3],double distance,double intersect[3]);
+
+void fm_catmullRom(float out_vector[3],const float p1[3],const float p2[3],const float p3[3],const float *p4, const float s);
+void fm_catmullRom(double out_vector[3],const double p1[3],const double p2[3],const double p3[3],const double *p4, const double s);
+
+bool fm_intersectAABB(const float bmin1[3],const float bmax1[3],const float bmin2[3],const float bmax2[3]);
+bool fm_intersectAABB(const double bmin1[3],const double bmax1[3],const double bmin2[3],const double bmax2[3]);
+
+
+// computes the rotation quaternion to go from unit-vector v0 to unit-vector v1
+void fm_rotationArc(const float v0[3],const float v1[3],float quat[4]);
+void fm_rotationArc(const double v0[3],const double v1[3],double quat[4]);
+
+float  fm_distancePointLineSegment(const float Point[3],const float LineStart[3],const float LineEnd[3],float intersection[3],LineSegmentType &type,float epsilon);
+double fm_distancePointLineSegment(const double Point[3],const double LineStart[3],const double LineEnd[3],double intersection[3],LineSegmentType &type,double epsilon);
+
+
+bool fm_colinear(const double p1[3],const double p2[3],const double p3[3],double epsilon=0.999);               // true if these three points in a row are co-linear
+bool fm_colinear(const float  p1[3],const float  p2[3],const float p3[3],float epsilon=0.999f);
+
+bool fm_colinear(const float a1[3],const float a2[3],const float b1[3],const float b2[3],float epsilon=0.999f);  // true if these two line segments are co-linear.
+bool fm_colinear(const double a1[3],const double a2[3],const double b1[3],const double b2[3],double epsilon=0.999);  // true if these two line segments are co-linear.
+
+enum IntersectResult
+{
+  IR_DONT_INTERSECT,
+  IR_DO_INTERSECT,
+  IR_COINCIDENT,
+  IR_PARALLEL,
+};
+
+IntersectResult fm_intersectLineSegments2d(const float a1[3], const float a2[3], const float b1[3], const float b2[3], float intersectionPoint[3]);
+IntersectResult fm_intersectLineSegments2d(const double a1[3],const double a2[3],const double b1[3],const double b2[3],double intersectionPoint[3]);
+
+IntersectResult fm_intersectLineSegments2dTime(const float a1[3], const float a2[3], const float b1[3], const float b2[3],float &t1,float &t2);
+IntersectResult fm_intersectLineSegments2dTime(const double a1[3],const double a2[3],const double b1[3],const double b2[3],double &t1,double &t2);
+
+// Plane-Triangle splitting
+
+enum PlaneTriResult
+{
+  PTR_ON_PLANE,
+  PTR_FRONT,
+  PTR_BACK,
+  PTR_SPLIT,
+};
+
+PlaneTriResult fm_planeTriIntersection(const float plane[4],    // the plane equation in Ax+By+Cz+D format
+									const float *triangle, // the source triangle.
+									uint32_t tstride,  // stride in bytes of the input and output *vertices*
+									float        epsilon,  // the co-planer epsilon value.
+									float       *front,    // the triangle in front of the
+									uint32_t &fcount,  // number of vertices in the 'front' triangle
+									float       *back,     // the triangle in back of the plane
+									uint32_t &bcount); // the number of vertices in the 'back' triangle.
+
+
+PlaneTriResult fm_planeTriIntersection(const double plane[4],    // the plane equation in Ax+By+Cz+D format
+									const double *triangle, // the source triangle.
+									uint32_t tstride,  // stride in bytes of the input and output *vertices*
+									double        epsilon,  // the co-planer epsilon value.
+									double       *front,    // the triangle in front of the
+									uint32_t &fcount,  // number of vertices in the 'front' triangle
+									double       *back,     // the triangle in back of the plane
+									uint32_t &bcount); // the number of vertices in the 'back' triangle.
+
+
+bool fm_intersectPointPlane(const float p1[3],const float p2[3],float *split,const float plane[4]);
+bool fm_intersectPointPlane(const double p1[3],const double p2[3],double *split,const double plane[4]);
+
+PlaneTriResult fm_getSidePlane(const float p[3],const float plane[4],float epsilon);
+PlaneTriResult fm_getSidePlane(const double p[3],const double plane[4],double epsilon);
+
+
+void fm_computeBestFitOBB(uint32_t vcount,const float *points,uint32_t pstride,float *sides,float matrix[16],bool bruteForce=true);
+void fm_computeBestFitOBB(uint32_t vcount,const double *points,uint32_t pstride,double *sides,double matrix[16],bool bruteForce=true);
+
+void fm_computeBestFitOBB(uint32_t vcount,const float *points,uint32_t pstride,float *sides,float pos[3],float quat[4],bool bruteForce=true);
+void fm_computeBestFitOBB(uint32_t vcount,const double *points,uint32_t pstride,double *sides,double pos[3],double quat[4],bool bruteForce=true);
+
+void fm_computeBestFitABB(uint32_t vcount,const float *points,uint32_t pstride,float *sides,float pos[3]);
+void fm_computeBestFitABB(uint32_t vcount,const double *points,uint32_t pstride,double *sides,double pos[3]);
+
+
+//** Note, if the returned capsule height is less than zero, then you must represent it is a sphere of size radius.
+void fm_computeBestFitCapsule(uint32_t vcount,const float *points,uint32_t pstride,float &radius,float &height,float matrix[16],bool bruteForce=true);
+void fm_computeBestFitCapsule(uint32_t vcount,const double *points,uint32_t pstride,float &radius,float &height,double matrix[16],bool bruteForce=true);
+
+
+void fm_planeToMatrix(const float plane[4],float matrix[16]); // convert a plane equation to a 4x4 rotation matrix.  Reference vector is 0,1,0
+void fm_planeToQuat(const float plane[4],float quat[4],float pos[3]); // convert a plane equation to a quaternion and translation
+
+void fm_planeToMatrix(const double plane[4],double matrix[16]); // convert a plane equation to a 4x4 rotation matrix
+void fm_planeToQuat(const double plane[4],double quat[4],double pos[3]); // convert a plane equation to a quaternion and translation
+
+inline void fm_doubleToFloat3(const double p[3],float t[3]) { t[0] = (float) p[0]; t[1] = (float)p[1]; t[2] = (float)p[2]; };
+inline void fm_floatToDouble3(const float p[3],double t[3]) { t[0] = (double)p[0]; t[1] = (double)p[1]; t[2] = (double)p[2]; };
+
+
+void  fm_eulerMatrix(float ax,float ay,float az,float matrix[16]); // convert euler (in radians) to a dest 4x4 matrix (translation set to zero)
+void  fm_eulerMatrix(double ax,double ay,double az,double matrix[16]); // convert euler (in radians) to a dest 4x4 matrix (translation set to zero)
+
+
+float  fm_computeMeshVolume(const float *vertices,uint32_t tcount,const uint32_t *indices);
+double fm_computeMeshVolume(const double *vertices,uint32_t tcount,const uint32_t *indices);
+
+
+#define FM_DEFAULT_GRANULARITY 0.001f  // 1 millimeter is the default granularity
+
+class fm_VertexIndex
+{
+public:
+  virtual uint32_t          getIndex(const float pos[3],bool &newPos) = 0;  // get welded index for this float vector[3]
+  virtual uint32_t          getIndex(const double pos[3],bool &newPos) = 0;  // get welded index for this double vector[3]
+  virtual const float *   getVerticesFloat(void) const = 0;
+  virtual const double *  getVerticesDouble(void) const = 0;
+  virtual const float *   getVertexFloat(uint32_t index) const = 0;
+  virtual const double *  getVertexDouble(uint32_t index) const = 0;
+  virtual uint32_t          getVcount(void) const = 0;
+  virtual bool            isDouble(void) const = 0;
+  virtual bool            saveAsObj(const char *fname,uint32_t tcount,uint32_t *indices) = 0;
+};
+
+fm_VertexIndex * fm_createVertexIndex(double granularity,bool snapToGrid); // create an indexed vertex system for doubles
+fm_VertexIndex * fm_createVertexIndex(float granularity,bool snapToGrid);  // create an indexed vertext system for floats
+void             fm_releaseVertexIndex(fm_VertexIndex *vindex);
+
+
+class fm_Triangulate
+{
+public:
+  virtual const double *       triangulate3d(uint32_t pcount,
+											 const double *points,
+											 uint32_t vstride,
+											 uint32_t &tcount,
+											 bool consolidate,
+											 double epsilon) = 0;
+
+  virtual const float  *       triangulate3d(uint32_t pcount,
+											 const float  *points,
+											 uint32_t vstride,
+											 uint32_t &tcount,
+											 bool consolidate,
+											 float epsilon) = 0;
+};
+
+fm_Triangulate * fm_createTriangulate(void);
+void             fm_releaseTriangulate(fm_Triangulate *t);
+
+
+const float * fm_getPoint(const float *points,uint32_t pstride,uint32_t index);
+const double * fm_getPoint(const double *points,uint32_t pstride,uint32_t index);
+
+bool   fm_insideTriangle(float Ax, float Ay,float Bx, float By,float Cx, float Cy,float Px, float Py);
+bool   fm_insideTriangle(double Ax, double Ay,double Bx, double By,double Cx, double Cy,double Px, double Py);
+float  fm_areaPolygon2d(uint32_t pcount,const float *points,uint32_t pstride);
+double fm_areaPolygon2d(uint32_t pcount,const double *points,uint32_t pstride);
+
+bool  fm_pointInsidePolygon2d(uint32_t pcount,const float *points,uint32_t pstride,const float *point,uint32_t xindex=0,uint32_t yindex=1);
+bool  fm_pointInsidePolygon2d(uint32_t pcount,const double *points,uint32_t pstride,const double *point,uint32_t xindex=0,uint32_t yindex=1);
+
+uint32_t fm_consolidatePolygon(uint32_t pcount,const float *points,uint32_t pstride,float *dest,float epsilon=0.999999f); // collapses co-linear edges.
+uint32_t fm_consolidatePolygon(uint32_t pcount,const double *points,uint32_t pstride,double *dest,double epsilon=0.999999); // collapses co-linear edges.
+
+
+bool fm_computeSplitPlane(uint32_t vcount,const double *vertices,uint32_t tcount,const uint32_t *indices,double *plane);
+bool fm_computeSplitPlane(uint32_t vcount,const float *vertices,uint32_t tcount,const uint32_t *indices,float *plane);
+
+void fm_nearestPointInTriangle(const float *pos,const float *p1,const float *p2,const float *p3,float *nearest);
+void fm_nearestPointInTriangle(const double *pos,const double *p1,const double *p2,const double *p3,double *nearest);
+
+float  fm_areaTriangle(const float *p1,const float *p2,const float *p3);
+double fm_areaTriangle(const double *p1,const double *p2,const double *p3);
+
+void fm_subtract(const float *A,const float *B,float *diff); // compute A-B and store the result in 'diff'
+void fm_subtract(const double *A,const double *B,double *diff); // compute A-B and store the result in 'diff'
+
+void fm_multiply(float *A,float scaler);
+void fm_multiply(double *A,double scaler);
+
+void fm_add(const float *A,const float *B,float *sum);
+void fm_add(const double *A,const double *B,double *sum);
+
+void fm_copy3(const float *source,float *dest);
+void fm_copy3(const double *source,double *dest);
+
+// re-indexes an indexed triangle mesh but drops unused vertices.  The output_indices can be the same pointer as the input indices.
+// the output_vertices can point to the input vertices if you desire.  The output_vertices buffer should be at least the same size
+// is the input buffer.  The routine returns the new vertex count after re-indexing.
+uint32_t  fm_copyUniqueVertices(uint32_t vcount,const float *input_vertices,float *output_vertices,uint32_t tcount,const uint32_t *input_indices,uint32_t *output_indices);
+uint32_t  fm_copyUniqueVertices(uint32_t vcount,const double *input_vertices,double *output_vertices,uint32_t tcount,const uint32_t *input_indices,uint32_t *output_indices);
+
+bool    fm_isMeshCoplanar(uint32_t tcount,const uint32_t *indices,const float *vertices,bool doubleSided); // returns true if this collection of indexed triangles are co-planar!
+bool    fm_isMeshCoplanar(uint32_t tcount,const uint32_t *indices,const double *vertices,bool doubleSided); // returns true if this collection of indexed triangles are co-planar!
+
+bool    fm_samePlane(const float p1[4],const float p2[4],float normalEpsilon=0.01f,float dEpsilon=0.001f,bool doubleSided=false); // returns true if these two plane equations are identical within an epsilon
+bool    fm_samePlane(const double p1[4],const double p2[4],double normalEpsilon=0.01,double dEpsilon=0.001,bool doubleSided=false);
+
+void    fm_OBBtoAABB(const float obmin[3],const float obmax[3],const float matrix[16],float abmin[3],float abmax[3]);
+
+// a utility class that will tessellate a mesh.
+class fm_Tesselate
+{
+public:
+  virtual const uint32_t * tesselate(fm_VertexIndex *vindex,uint32_t tcount,const uint32_t *indices,float longEdge,uint32_t maxDepth,uint32_t &outcount) = 0;
+};
+
+fm_Tesselate * fm_createTesselate(void);
+void           fm_releaseTesselate(fm_Tesselate *t);
+
+void fm_computeMeanNormals(uint32_t vcount,       // the number of vertices
+						   const float *vertices,     // the base address of the vertex position data.
+						   uint32_t vstride,      // the stride between position data.
+						   float *normals,            // the base address  of the destination for mean vector normals
+						   uint32_t nstride,      // the stride between normals
+						   uint32_t tcount,       // the number of triangles
+						   const uint32_t *indices);     // the triangle indices
+
+void fm_computeMeanNormals(uint32_t vcount,       // the number of vertices
+						   const double *vertices,     // the base address of the vertex position data.
+						   uint32_t vstride,      // the stride between position data.
+						   double *normals,            // the base address  of the destination for mean vector normals
+						   uint32_t nstride,      // the stride between normals
+						   uint32_t tcount,       // the number of triangles
+						   const uint32_t *indices);     // the triangle indices
+
+
+bool fm_isValidTriangle(const float *p1,const float *p2,const float *p3,float epsilon=0.00001f);
+bool fm_isValidTriangle(const double *p1,const double *p2,const double *p3,double epsilon=0.00001f);
+
+
+}; // end of namespace
+
+#endif
diff --git a/thirdparty/vhacd/inc/btAlignedAllocator.h b/thirdparty/vhacd/inc/btAlignedAllocator.h
new file mode 100644
index 0000000000..94e71d5125
--- /dev/null
+++ b/thirdparty/vhacd/inc/btAlignedAllocator.h
@@ -0,0 +1,113 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it freely,
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_ALIGNED_ALLOCATOR
+#define BT_ALIGNED_ALLOCATOR
+
+///we probably replace this with our own aligned memory allocator
+///so we replace _aligned_malloc and _aligned_free with our own
+///that is better portable and more predictable
+
+#include "btScalar.h"
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+//#define BT_DEBUG_MEMORY_ALLOCATIONS 1
+#ifdef BT_DEBUG_MEMORY_ALLOCATIONS
+
+#define btAlignedAlloc(a, b) \
+    btAlignedAllocInternal(a, b, __LINE__, __FILE__)
+
+#define btAlignedFree(ptr) \
+    btAlignedFreeInternal(ptr, __LINE__, __FILE__)
+
+void* btAlignedAllocInternal(size_t size, int32_t alignment, int32_t line, char* filename);
+
+void btAlignedFreeInternal(void* ptr, int32_t line, char* filename);
+
+#else
+void* btAlignedAllocInternal(size_t size, int32_t alignment);
+void btAlignedFreeInternal(void* ptr);
+
+#define btAlignedAlloc(size, alignment) btAlignedAllocInternal(size, alignment)
+#define btAlignedFree(ptr) btAlignedFreeInternal(ptr)
+
+#endif
+typedef int32_t size_type;
+
+typedef void*(btAlignedAllocFunc)(size_t size, int32_t alignment);
+typedef void(btAlignedFreeFunc)(void* memblock);
+typedef void*(btAllocFunc)(size_t size);
+typedef void(btFreeFunc)(void* memblock);
+
+///The developer can let all Bullet memory allocations go through a custom memory allocator, using btAlignedAllocSetCustom
+void btAlignedAllocSetCustom(btAllocFunc* allocFunc, btFreeFunc* freeFunc);
+///If the developer has already an custom aligned allocator, then btAlignedAllocSetCustomAligned can be used. The default aligned allocator pre-allocates extra memory using the non-aligned allocator, and instruments it.
+void btAlignedAllocSetCustomAligned(btAlignedAllocFunc* allocFunc, btAlignedFreeFunc* freeFunc);
+
+///The btAlignedAllocator is a portable class for aligned memory allocations.
+///Default implementations for unaligned and aligned allocations can be overridden by a custom allocator using btAlignedAllocSetCustom and btAlignedAllocSetCustomAligned.
+template <typename T, unsigned Alignment>
+class btAlignedAllocator {
+
+    typedef btAlignedAllocator<T, Alignment> self_type;
+
+public:
+    //just going down a list:
+    btAlignedAllocator() {}
+    /*
+	btAlignedAllocator( const self_type & ) {}
+	*/
+
+    template <typename Other>
+    btAlignedAllocator(const btAlignedAllocator<Other, Alignment>&) {}
+
+    typedef const T* const_pointer;
+    typedef const T& const_reference;
+    typedef T* pointer;
+    typedef T& reference;
+    typedef T value_type;
+
+    pointer address(reference ref) const { return &ref; }
+    const_pointer address(const_reference ref) const { return &ref; }
+    pointer allocate(size_type n, const_pointer* hint = 0)
+    {
+        (void)hint;
+        return reinterpret_cast<pointer>(btAlignedAlloc(sizeof(value_type) * n, Alignment));
+    }
+    void construct(pointer ptr, const value_type& value) { new (ptr) value_type(value); }
+    void deallocate(pointer ptr)
+    {
+        btAlignedFree(reinterpret_cast<void*>(ptr));
+    }
+    void destroy(pointer ptr) { ptr->~value_type(); }
+
+    template <typename O>
+    struct rebind {
+        typedef btAlignedAllocator<O, Alignment> other;
+    };
+    template <typename O>
+    self_type& operator=(const btAlignedAllocator<O, Alignment>&) { return *this; }
+
+    friend bool operator==(const self_type&, const self_type&) { return true; }
+};
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_ALIGNED_ALLOCATOR
diff --git a/thirdparty/vhacd/inc/btAlignedObjectArray.h b/thirdparty/vhacd/inc/btAlignedObjectArray.h
new file mode 100644
index 0000000000..1ce03d21bc
--- /dev/null
+++ b/thirdparty/vhacd/inc/btAlignedObjectArray.h
@@ -0,0 +1,456 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_OBJECT_ARRAY__
+#define BT_OBJECT_ARRAY__
+
+#include "btAlignedAllocator.h"
+#include "btScalar.h" // has definitions like SIMD_FORCE_INLINE
+
+///If the platform doesn't support placement new, you can disable BT_USE_PLACEMENT_NEW
+///then the btAlignedObjectArray doesn't support objects with virtual methods, and non-trivial constructors/destructors
+///You can enable BT_USE_MEMCPY, then swapping elements in the array will use memcpy instead of operator=
+///see discussion here: http://continuousphysics.com/Bullet/phpBB2/viewtopic.php?t=1231 and
+///http://www.continuousphysics.com/Bullet/phpBB2/viewtopic.php?t=1240
+
+#define BT_USE_PLACEMENT_NEW 1
+//#define BT_USE_MEMCPY 1 //disable, because it is cumbersome to find out for each platform where memcpy is defined. It can be in <memory.h> or <string.h> or otherwise...
+#define BT_ALLOW_ARRAY_COPY_OPERATOR // enabling this can accidently perform deep copies of data if you are not careful
+
+#ifdef BT_USE_MEMCPY
+#include <memory.h>
+#include <string.h>
+#endif //BT_USE_MEMCPY
+
+#ifdef BT_USE_PLACEMENT_NEW
+#include <new> //for placement new
+#endif //BT_USE_PLACEMENT_NEW
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+///The btAlignedObjectArray template class uses a subset of the stl::vector interface for its methods
+///It is developed to replace stl::vector to avoid portability issues, including STL alignment issues to add SIMD/SSE data
+template <typename T>
+//template <class T>
+class btAlignedObjectArray {
+    btAlignedAllocator<T, 16> m_allocator;
+
+    int32_t m_size;
+    int32_t m_capacity;
+    T* m_data;
+    //PCK: added this line
+    bool m_ownsMemory;
+
+#ifdef BT_ALLOW_ARRAY_COPY_OPERATOR
+public:
+    SIMD_FORCE_INLINE btAlignedObjectArray<T>& operator=(const btAlignedObjectArray<T>& other)
+    {
+        copyFromArray(other);
+        return *this;
+    }
+#else //BT_ALLOW_ARRAY_COPY_OPERATOR
+private:
+    SIMD_FORCE_INLINE btAlignedObjectArray<T>& operator=(const btAlignedObjectArray<T>& other);
+#endif //BT_ALLOW_ARRAY_COPY_OPERATOR
+
+protected:
+    SIMD_FORCE_INLINE int32_t allocSize(int32_t size)
+    {
+        return (size ? size * 2 : 1);
+    }
+    SIMD_FORCE_INLINE void copy(int32_t start, int32_t end, T* dest) const
+    {
+        int32_t i;
+        for (i = start; i < end; ++i)
+#ifdef BT_USE_PLACEMENT_NEW
+            new (&dest[i]) T(m_data[i]);
+#else
+            dest[i] = m_data[i];
+#endif //BT_USE_PLACEMENT_NEW
+    }
+
+    SIMD_FORCE_INLINE void init()
+    {
+        //PCK: added this line
+        m_ownsMemory = true;
+        m_data = 0;
+        m_size = 0;
+        m_capacity = 0;
+    }
+    SIMD_FORCE_INLINE void destroy(int32_t first, int32_t last)
+    {
+        int32_t i;
+        for (i = first; i < last; i++) {
+            m_data[i].~T();
+        }
+    }
+
+    SIMD_FORCE_INLINE void* allocate(int32_t size)
+    {
+        if (size)
+            return m_allocator.allocate(size);
+        return 0;
+    }
+
+    SIMD_FORCE_INLINE void deallocate()
+    {
+        if (m_data) {
+            //PCK: enclosed the deallocation in this block
+            if (m_ownsMemory) {
+                m_allocator.deallocate(m_data);
+            }
+            m_data = 0;
+        }
+    }
+
+public:
+    btAlignedObjectArray()
+    {
+        init();
+    }
+
+    ~btAlignedObjectArray()
+    {
+        clear();
+    }
+
+    ///Generally it is best to avoid using the copy constructor of an btAlignedObjectArray, and use a (const) reference to the array instead.
+    btAlignedObjectArray(const btAlignedObjectArray& otherArray)
+    {
+        init();
+
+        int32_t otherSize = otherArray.size();
+        resize(otherSize);
+        otherArray.copy(0, otherSize, m_data);
+    }
+
+    /// return the number of elements in the array
+    SIMD_FORCE_INLINE int32_t size() const
+    {
+        return m_size;
+    }
+
+    SIMD_FORCE_INLINE const T& at(int32_t n) const
+    {
+        btAssert(n >= 0);
+        btAssert(n < size());
+        return m_data[n];
+    }
+
+    SIMD_FORCE_INLINE T& at(int32_t n)
+    {
+        btAssert(n >= 0);
+        btAssert(n < size());
+        return m_data[n];
+    }
+
+    SIMD_FORCE_INLINE const T& operator[](int32_t n) const
+    {
+        btAssert(n >= 0);
+        btAssert(n < size());
+        return m_data[n];
+    }
+
+    SIMD_FORCE_INLINE T& operator[](int32_t n)
+    {
+        btAssert(n >= 0);
+        btAssert(n < size());
+        return m_data[n];
+    }
+
+    ///clear the array, deallocated memory. Generally it is better to use array.resize(0), to reduce performance overhead of run-time memory (de)allocations.
+    SIMD_FORCE_INLINE void clear()
+    {
+        destroy(0, size());
+
+        deallocate();
+
+        init();
+    }
+
+    SIMD_FORCE_INLINE void pop_back()
+    {
+        btAssert(m_size > 0);
+        m_size--;
+        m_data[m_size].~T();
+    }
+
+    ///resize changes the number of elements in the array. If the new size is larger, the new elements will be constructed using the optional second argument.
+    ///when the new number of elements is smaller, the destructor will be called, but memory will not be freed, to reduce performance overhead of run-time memory (de)allocations.
+    SIMD_FORCE_INLINE void resize(int32_t newsize, const T& fillData = T())
+    {
+        int32_t curSize = size();
+
+        if (newsize < curSize) {
+            for (int32_t i = newsize; i < curSize; i++) {
+                m_data[i].~T();
+            }
+        }
+        else {
+            if (newsize > size()) {
+                reserve(newsize);
+            }
+#ifdef BT_USE_PLACEMENT_NEW
+            for (int32_t i = curSize; i < newsize; i++) {
+                new (&m_data[i]) T(fillData);
+            }
+#endif //BT_USE_PLACEMENT_NEW
+        }
+
+        m_size = newsize;
+    }
+
+    SIMD_FORCE_INLINE T& expandNonInitializing()
+    {
+        int32_t sz = size();
+        if (sz == capacity()) {
+            reserve(allocSize(size()));
+        }
+        m_size++;
+
+        return m_data[sz];
+    }
+
+    SIMD_FORCE_INLINE T& expand(const T& fillValue = T())
+    {
+        int32_t sz = size();
+        if (sz == capacity()) {
+            reserve(allocSize(size()));
+        }
+        m_size++;
+#ifdef BT_USE_PLACEMENT_NEW
+        new (&m_data[sz]) T(fillValue); //use the in-place new (not really allocating heap memory)
+#endif
+
+        return m_data[sz];
+    }
+
+    SIMD_FORCE_INLINE void push_back(const T& _Val)
+    {
+        int32_t sz = size();
+        if (sz == capacity()) {
+            reserve(allocSize(size()));
+        }
+
+#ifdef BT_USE_PLACEMENT_NEW
+        new (&m_data[m_size]) T(_Val);
+#else
+        m_data[size()] = _Val;
+#endif //BT_USE_PLACEMENT_NEW
+
+        m_size++;
+    }
+
+    /// return the pre-allocated (reserved) elements, this is at least as large as the total number of elements,see size() and reserve()
+    SIMD_FORCE_INLINE int32_t capacity() const
+    {
+        return m_capacity;
+    }
+
+    SIMD_FORCE_INLINE void reserve(int32_t _Count)
+    { // determine new minimum length of allocated storage
+        if (capacity() < _Count) { // not enough room, reallocate
+            T* s = (T*)allocate(_Count);
+
+            copy(0, size(), s);
+
+            destroy(0, size());
+
+            deallocate();
+
+            //PCK: added this line
+            m_ownsMemory = true;
+
+            m_data = s;
+
+            m_capacity = _Count;
+        }
+    }
+
+    class less {
+    public:
+        bool operator()(const T& a, const T& b)
+        {
+            return (a < b);
+        }
+    };
+
+    template <typename L>
+    void quickSortInternal(const L& CompareFunc, int32_t lo, int32_t hi)
+    {
+        //  lo is the lower index, hi is the upper index
+        //  of the region of array a that is to be sorted
+        int32_t i = lo, j = hi;
+        T x = m_data[(lo + hi) / 2];
+
+        //  partition
+        do {
+            while (CompareFunc(m_data[i], x))
+                i++;
+            while (CompareFunc(x, m_data[j]))
+                j--;
+            if (i <= j) {
+                swap(i, j);
+                i++;
+                j--;
+            }
+        } while (i <= j);
+
+        //  recursion
+        if (lo < j)
+            quickSortInternal(CompareFunc, lo, j);
+        if (i < hi)
+            quickSortInternal(CompareFunc, i, hi);
+    }
+
+    template <typename L>
+    void quickSort(const L& CompareFunc)
+    {
+        //don't sort 0 or 1 elements
+        if (size() > 1) {
+            quickSortInternal(CompareFunc, 0, size() - 1);
+        }
+    }
+
+    ///heap sort from http://www.csse.monash.edu.au/~lloyd/tildeAlgDS/Sort/Heap/
+    template <typename L>
+    void downHeap(T* pArr, int32_t k, int32_t n, const L& CompareFunc)
+    {
+        /*  PRE: a[k+1..N] is a heap */
+        /* POST:  a[k..N]  is a heap */
+
+        T temp = pArr[k - 1];
+        /* k has child(s) */
+        while (k <= n / 2) {
+            int32_t child = 2 * k;
+
+            if ((child < n) && CompareFunc(pArr[child - 1], pArr[child])) {
+                child++;
+            }
+            /* pick larger child */
+            if (CompareFunc(temp, pArr[child - 1])) {
+                /* move child up */
+                pArr[k - 1] = pArr[child - 1];
+                k = child;
+            }
+            else {
+                break;
+            }
+        }
+        pArr[k - 1] = temp;
+    } /*downHeap*/
+
+    void swap(int32_t index0, int32_t index1)
+    {
+#ifdef BT_USE_MEMCPY
+        char temp[sizeof(T)];
+        memcpy(temp, &m_data[index0], sizeof(T));
+        memcpy(&m_data[index0], &m_data[index1], sizeof(T));
+        memcpy(&m_data[index1], temp, sizeof(T));
+#else
+        T temp = m_data[index0];
+        m_data[index0] = m_data[index1];
+        m_data[index1] = temp;
+#endif //BT_USE_PLACEMENT_NEW
+    }
+
+    template <typename L>
+    void heapSort(const L& CompareFunc)
+    {
+        /* sort a[0..N-1],  N.B. 0 to N-1 */
+        int32_t k;
+        int32_t n = m_size;
+        for (k = n / 2; k > 0; k--) {
+            downHeap(m_data, k, n, CompareFunc);
+        }
+
+        /* a[1..N] is now a heap */
+        while (n >= 1) {
+            swap(0, n - 1); /* largest of a[0..n-1] */
+
+            n = n - 1;
+            /* restore a[1..i-1] heap */
+            downHeap(m_data, 1, n, CompareFunc);
+        }
+    }
+
+    ///non-recursive binary search, assumes sorted array
+    int32_t findBinarySearch(const T& key) const
+    {
+        int32_t first = 0;
+        int32_t last = size() - 1;
+
+        //assume sorted array
+        while (first <= last) {
+            int32_t mid = (first + last) / 2; // compute mid point.
+            if (key > m_data[mid])
+                first = mid + 1; // repeat search in top half.
+            else if (key < m_data[mid])
+                last = mid - 1; // repeat search in bottom half.
+            else
+                return mid; // found it. return position /////
+        }
+        return size(); // failed to find key
+    }
+
+    int32_t findLinearSearch(const T& key) const
+    {
+        int32_t index = size();
+        int32_t i;
+
+        for (i = 0; i < size(); i++) {
+            if (m_data[i] == key) {
+                index = i;
+                break;
+            }
+        }
+        return index;
+    }
+
+    void remove(const T& key)
+    {
+
+        int32_t findIndex = findLinearSearch(key);
+        if (findIndex < size()) {
+            swap(findIndex, size() - 1);
+            pop_back();
+        }
+    }
+
+    //PCK: whole function
+    void initializeFromBuffer(void* buffer, int32_t size, int32_t capacity)
+    {
+        clear();
+        m_ownsMemory = false;
+        m_data = (T*)buffer;
+        m_size = size;
+        m_capacity = capacity;
+    }
+
+    void copyFromArray(const btAlignedObjectArray& otherArray)
+    {
+        int32_t otherSize = otherArray.size();
+        resize(otherSize);
+        otherArray.copy(0, otherSize, m_data);
+    }
+};
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_OBJECT_ARRAY__
diff --git a/thirdparty/vhacd/inc/btConvexHullComputer.h b/thirdparty/vhacd/inc/btConvexHullComputer.h
new file mode 100644
index 0000000000..04bb96f64a
--- /dev/null
+++ b/thirdparty/vhacd/inc/btConvexHullComputer.h
@@ -0,0 +1,105 @@
+/*
+Copyright (c) 2011 Ole Kniemeyer, MAXON, www.maxon.net
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_CONVEX_HULL_COMPUTER_H
+#define BT_CONVEX_HULL_COMPUTER_H
+
+#include "btAlignedObjectArray.h"
+#include "btVector3.h"
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+/// Convex hull implementation based on Preparata and Hong
+/// See http://code.google.com/p/bullet/issues/detail?id=275
+/// Ole Kniemeyer, MAXON Computer GmbH
+class btConvexHullComputer {
+private:
+    btScalar compute(const void* coords, bool doubleCoords, int32_t stride, int32_t count, btScalar shrink, btScalar shrinkClamp);
+
+public:
+    class Edge {
+    private:
+        int32_t next;
+        int32_t reverse;
+        int32_t targetVertex;
+
+        friend class btConvexHullComputer;
+
+    public:
+        int32_t getSourceVertex() const
+        {
+            return (this + reverse)->targetVertex;
+        }
+
+        int32_t getTargetVertex() const
+        {
+            return targetVertex;
+        }
+
+        const Edge* getNextEdgeOfVertex() const // clockwise list of all edges of a vertex
+        {
+            return this + next;
+        }
+
+        const Edge* getNextEdgeOfFace() const // counter-clockwise list of all edges of a face
+        {
+            return (this + reverse)->getNextEdgeOfVertex();
+        }
+
+        const Edge* getReverseEdge() const
+        {
+            return this + reverse;
+        }
+    };
+
+    // Vertices of the output hull
+    btAlignedObjectArray<btVector3> vertices;
+
+    // Edges of the output hull
+    btAlignedObjectArray<Edge> edges;
+
+    // Faces of the convex hull. Each entry is an index into the "edges" array pointing to an edge of the face. Faces are planar n-gons
+    btAlignedObjectArray<int32_t> faces;
+
+    /*
+		Compute convex hull of "count" vertices stored in "coords". "stride" is the difference in bytes
+		between the addresses of consecutive vertices. If "shrink" is positive, the convex hull is shrunken
+		by that amount (each face is moved by "shrink" length units towards the center along its normal).
+		If "shrinkClamp" is positive, "shrink" is clamped to not exceed "shrinkClamp * innerRadius", where "innerRadius"
+		is the minimum distance of a face to the center of the convex hull.
+
+		The returned value is the amount by which the hull has been shrunken. If it is negative, the amount was so large
+		that the resulting convex hull is empty.
+
+		The output convex hull can be found in the member variables "vertices", "edges", "faces".
+		*/
+    btScalar compute(const float* coords, int32_t stride, int32_t count, btScalar shrink, btScalar shrinkClamp)
+    {
+        return compute(coords, false, stride, count, shrink, shrinkClamp);
+    }
+
+    // same as above, but double precision
+    btScalar compute(const double* coords, int32_t stride, int32_t count, btScalar shrink, btScalar shrinkClamp)
+    {
+        return compute(coords, true, stride, count, shrink, shrinkClamp);
+    }
+};
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_CONVEX_HULL_COMPUTER_H
diff --git a/thirdparty/vhacd/inc/btMinMax.h b/thirdparty/vhacd/inc/btMinMax.h
new file mode 100644
index 0000000000..9bc1e1c770
--- /dev/null
+++ b/thirdparty/vhacd/inc/btMinMax.h
@@ -0,0 +1,73 @@
+/*
+Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_GEN_MINMAX_H
+#define BT_GEN_MINMAX_H
+
+#include "btScalar.h"
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+template <class T>
+SIMD_FORCE_INLINE const T& btMin(const T& a, const T& b)
+{
+    return a < b ? a : b;
+}
+
+template <class T>
+SIMD_FORCE_INLINE const T& btMax(const T& a, const T& b)
+{
+    return a > b ? a : b;
+}
+
+template <class T>
+SIMD_FORCE_INLINE const T& btClamped(const T& a, const T& lb, const T& ub)
+{
+    return a < lb ? lb : (ub < a ? ub : a);
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btSetMin(T& a, const T& b)
+{
+    if (b < a) {
+        a = b;
+    }
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btSetMax(T& a, const T& b)
+{
+    if (a < b) {
+        a = b;
+    }
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btClamp(T& a, const T& lb, const T& ub)
+{
+    if (a < lb) {
+        a = lb;
+    }
+    else if (ub < a) {
+        a = ub;
+    }
+}
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_GEN_MINMAX_H
diff --git a/thirdparty/vhacd/inc/btScalar.h b/thirdparty/vhacd/inc/btScalar.h
new file mode 100644
index 0000000000..3999a71521
--- /dev/null
+++ b/thirdparty/vhacd/inc/btScalar.h
@@ -0,0 +1,573 @@
+/*
+Copyright (c) 2003-2009 Erwin Coumans  http://bullet.googlecode.com
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_SCALAR_H
+#define BT_SCALAR_H
+
+#ifdef BT_MANAGED_CODE
+//Aligned data types not supported in managed code
+#pragma unmanaged
+#endif
+
+#include <float.h>
+#include <math.h>
+#include <stdlib.h> //size_t for MSVC 6.0
+#include <stdint.h>
+
+/* SVN $Revision$ on $Date$ from http://bullet.googlecode.com*/
+#define BT_BULLET_VERSION 279
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+inline int32_t btGetVersion()
+{
+    return BT_BULLET_VERSION;
+}
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#if defined(DEBUG) || defined(_DEBUG)
+#define BT_DEBUG
+#endif
+
+#ifdef _WIN32
+
+#if defined(__MINGW32__) || defined(__CYGWIN__) || (defined(_MSC_VER) && _MSC_VER < 1300)
+
+#define SIMD_FORCE_INLINE inline
+#define ATTRIBUTE_ALIGNED16(a) a
+#define ATTRIBUTE_ALIGNED64(a) a
+#define ATTRIBUTE_ALIGNED128(a) a
+#else
+//#define BT_HAS_ALIGNED_ALLOCATOR
+#pragma warning(disable : 4324) // disable padding warning
+//			#pragma warning(disable:4530) // Disable the exception disable but used in MSCV Stl warning.
+//			#pragma warning(disable:4996) //Turn off warnings about deprecated C routines
+//			#pragma warning(disable:4786) // Disable the "debug name too long" warning
+
+#define SIMD_FORCE_INLINE __forceinline
+#define ATTRIBUTE_ALIGNED16(a) __declspec(align(16)) a
+#define ATTRIBUTE_ALIGNED64(a) __declspec(align(64)) a
+#define ATTRIBUTE_ALIGNED128(a) __declspec(align(128)) a
+#ifdef _XBOX
+#define BT_USE_VMX128
+
+#include <ppcintrinsics.h>
+#define BT_HAVE_NATIVE_FSEL
+#define btFsel(a, b, c) __fsel((a), (b), (c))
+#else
+
+#if (defined(_WIN32) && (_MSC_VER) && _MSC_VER >= 1400) && (!defined(BT_USE_DOUBLE_PRECISION))
+#define BT_USE_SSE
+#include <emmintrin.h>
+#endif
+
+#endif //_XBOX
+
+#endif //__MINGW32__
+
+#include <assert.h>
+#ifdef BT_DEBUG
+#define btAssert assert
+#else
+#define btAssert(x)
+#endif
+//btFullAssert is optional, slows down a lot
+#define btFullAssert(x)
+
+#define btLikely(_c) _c
+#define btUnlikely(_c) _c
+
+#else
+
+#if defined(__CELLOS_LV2__)
+#define SIMD_FORCE_INLINE inline __attribute__((always_inline))
+#define ATTRIBUTE_ALIGNED16(a) a __attribute__((aligned(16)))
+#define ATTRIBUTE_ALIGNED64(a) a __attribute__((aligned(64)))
+#define ATTRIBUTE_ALIGNED128(a) a __attribute__((aligned(128)))
+#ifndef assert
+#include <assert.h>
+#endif
+#ifdef BT_DEBUG
+#ifdef __SPU__
+#include <spu_printf.h>
+#define printf spu_printf
+#define btAssert(x)                                                \
+    {                                                              \
+        if (!(x)) {                                                \
+            printf("Assert " __FILE__ ":%u (" #x ")\n", __LINE__); \
+            spu_hcmpeq(0, 0);                                      \
+        }                                                          \
+    }
+#else
+#define btAssert assert
+#endif
+
+#else
+#define btAssert(x)
+#endif
+//btFullAssert is optional, slows down a lot
+#define btFullAssert(x)
+
+#define btLikely(_c) _c
+#define btUnlikely(_c) _c
+
+#else
+
+#ifdef USE_LIBSPE2
+
+#define SIMD_FORCE_INLINE __inline
+#define ATTRIBUTE_ALIGNED16(a) a __attribute__((aligned(16)))
+#define ATTRIBUTE_ALIGNED64(a) a __attribute__((aligned(64)))
+#define ATTRIBUTE_ALIGNED128(a) a __attribute__((aligned(128)))
+#ifndef assert
+#include <assert.h>
+#endif
+#ifdef BT_DEBUG
+#define btAssert assert
+#else
+#define btAssert(x)
+#endif
+//btFullAssert is optional, slows down a lot
+#define btFullAssert(x)
+
+#define btLikely(_c) __builtin_expect((_c), 1)
+#define btUnlikely(_c) __builtin_expect((_c), 0)
+
+#else
+//non-windows systems
+
+#if (defined(__APPLE__) && defined(__i386__) && (!defined(BT_USE_DOUBLE_PRECISION)))
+#define BT_USE_SSE
+#include <emmintrin.h>
+
+#define SIMD_FORCE_INLINE inline
+///@todo: check out alignment methods for other platforms/compilers
+#define ATTRIBUTE_ALIGNED16(a) a __attribute__((aligned(16)))
+#define ATTRIBUTE_ALIGNED64(a) a __attribute__((aligned(64)))
+#define ATTRIBUTE_ALIGNED128(a) a __attribute__((aligned(128)))
+#ifndef assert
+#include <assert.h>
+#endif
+
+#if defined(DEBUG) || defined(_DEBUG)
+#define btAssert assert
+#else
+#define btAssert(x)
+#endif
+
+//btFullAssert is optional, slows down a lot
+#define btFullAssert(x)
+#define btLikely(_c) _c
+#define btUnlikely(_c) _c
+
+#else
+
+#define SIMD_FORCE_INLINE inline
+///@todo: check out alignment methods for other platforms/compilers
+///#define ATTRIBUTE_ALIGNED16(a) a __attribute__ ((aligned (16)))
+///#define ATTRIBUTE_ALIGNED64(a) a __attribute__ ((aligned (64)))
+///#define ATTRIBUTE_ALIGNED128(a) a __attribute__ ((aligned (128)))
+#define ATTRIBUTE_ALIGNED16(a) a
+#define ATTRIBUTE_ALIGNED64(a) a
+#define ATTRIBUTE_ALIGNED128(a) a
+#ifndef assert
+#include <assert.h>
+#endif
+
+#if defined(DEBUG) || defined(_DEBUG)
+#define btAssert assert
+#else
+#define btAssert(x)
+#endif
+
+//btFullAssert is optional, slows down a lot
+#define btFullAssert(x)
+#define btLikely(_c) _c
+#define btUnlikely(_c) _c
+#endif //__APPLE__
+
+#endif // LIBSPE2
+
+#endif //__CELLOS_LV2__
+#endif
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+///The btScalar type abstracts floating point numbers, to easily switch between double and single floating point precision.
+#if defined(BT_USE_DOUBLE_PRECISION)
+typedef double btScalar;
+//this number could be bigger in double precision
+#define BT_LARGE_FLOAT 1e30
+#else
+typedef float btScalar;
+//keep BT_LARGE_FLOAT*BT_LARGE_FLOAT < FLT_MAX
+#define BT_LARGE_FLOAT 1e18f
+#endif
+
+#define BT_DECLARE_ALIGNED_ALLOCATOR()                                                                     \
+    SIMD_FORCE_INLINE void* operator new(size_t sizeInBytes) { return btAlignedAlloc(sizeInBytes, 16); }   \
+    SIMD_FORCE_INLINE void operator delete(void* ptr) { btAlignedFree(ptr); }                              \
+    SIMD_FORCE_INLINE void* operator new(size_t, void* ptr) { return ptr; }                                \
+    SIMD_FORCE_INLINE void operator delete(void*, void*) {}                                                \
+    SIMD_FORCE_INLINE void* operator new[](size_t sizeInBytes) { return btAlignedAlloc(sizeInBytes, 16); } \
+    SIMD_FORCE_INLINE void operator delete[](void* ptr) { btAlignedFree(ptr); }                            \
+    SIMD_FORCE_INLINE void* operator new[](size_t, void* ptr) { return ptr; }                              \
+    SIMD_FORCE_INLINE void operator delete[](void*, void*) {}
+
+#if defined(BT_USE_DOUBLE_PRECISION) || defined(BT_FORCE_DOUBLE_FUNCTIONS)
+
+SIMD_FORCE_INLINE btScalar btSqrt(btScalar x)
+{
+    return sqrt(x);
+}
+SIMD_FORCE_INLINE btScalar btFabs(btScalar x) { return fabs(x); }
+SIMD_FORCE_INLINE btScalar btCos(btScalar x) { return cos(x); }
+SIMD_FORCE_INLINE btScalar btSin(btScalar x) { return sin(x); }
+SIMD_FORCE_INLINE btScalar btTan(btScalar x) { return tan(x); }
+SIMD_FORCE_INLINE btScalar btAcos(btScalar x)
+{
+    if (x < btScalar(-1))
+        x = btScalar(-1);
+    if (x > btScalar(1))
+        x = btScalar(1);
+    return acos(x);
+}
+SIMD_FORCE_INLINE btScalar btAsin(btScalar x)
+{
+    if (x < btScalar(-1))
+        x = btScalar(-1);
+    if (x > btScalar(1))
+        x = btScalar(1);
+    return asin(x);
+}
+SIMD_FORCE_INLINE btScalar btAtan(btScalar x) { return atan(x); }
+SIMD_FORCE_INLINE btScalar btAtan2(btScalar x, btScalar y) { return atan2(x, y); }
+SIMD_FORCE_INLINE btScalar btExp(btScalar x) { return exp(x); }
+SIMD_FORCE_INLINE btScalar btLog(btScalar x) { return log(x); }
+SIMD_FORCE_INLINE btScalar btPow(btScalar x, btScalar y) { return pow(x, y); }
+SIMD_FORCE_INLINE btScalar btFmod(btScalar x, btScalar y) { return fmod(x, y); }
+
+#else
+
+SIMD_FORCE_INLINE btScalar btSqrt(btScalar y)
+{
+#ifdef USE_APPROXIMATION
+    double x, z, tempf;
+    unsigned long* tfptr = ((unsigned long*)&tempf) + 1;
+
+    tempf = y;
+    *tfptr = (0xbfcdd90a - *tfptr) >> 1; /* estimate of 1/sqrt(y) */
+    x = tempf;
+    z = y * btScalar(0.5);
+    x = (btScalar(1.5) * x) - (x * x) * (x * z); /* iteration formula     */
+    x = (btScalar(1.5) * x) - (x * x) * (x * z);
+    x = (btScalar(1.5) * x) - (x * x) * (x * z);
+    x = (btScalar(1.5) * x) - (x * x) * (x * z);
+    x = (btScalar(1.5) * x) - (x * x) * (x * z);
+    return x * y;
+#else
+    return sqrtf(y);
+#endif
+}
+SIMD_FORCE_INLINE btScalar btFabs(btScalar x) { return fabsf(x); }
+SIMD_FORCE_INLINE btScalar btCos(btScalar x) { return cosf(x); }
+SIMD_FORCE_INLINE btScalar btSin(btScalar x) { return sinf(x); }
+SIMD_FORCE_INLINE btScalar btTan(btScalar x) { return tanf(x); }
+SIMD_FORCE_INLINE btScalar btAcos(btScalar x)
+{
+    if (x < btScalar(-1))
+        x = btScalar(-1);
+    if (x > btScalar(1))
+        x = btScalar(1);
+    return acosf(x);
+}
+SIMD_FORCE_INLINE btScalar btAsin(btScalar x)
+{
+    if (x < btScalar(-1))
+        x = btScalar(-1);
+    if (x > btScalar(1))
+        x = btScalar(1);
+    return asinf(x);
+}
+SIMD_FORCE_INLINE btScalar btAtan(btScalar x) { return atanf(x); }
+SIMD_FORCE_INLINE btScalar btAtan2(btScalar x, btScalar y) { return atan2f(x, y); }
+SIMD_FORCE_INLINE btScalar btExp(btScalar x) { return expf(x); }
+SIMD_FORCE_INLINE btScalar btLog(btScalar x) { return logf(x); }
+SIMD_FORCE_INLINE btScalar btPow(btScalar x, btScalar y) { return powf(x, y); }
+SIMD_FORCE_INLINE btScalar btFmod(btScalar x, btScalar y) { return fmodf(x, y); }
+
+#endif
+
+#define SIMD_2_PI btScalar(6.283185307179586232)
+#define SIMD_PI (SIMD_2_PI * btScalar(0.5))
+#define SIMD_HALF_PI (SIMD_2_PI * btScalar(0.25))
+#define SIMD_RADS_PER_DEG (SIMD_2_PI / btScalar(360.0))
+#define SIMD_DEGS_PER_RAD (btScalar(360.0) / SIMD_2_PI)
+#define SIMDSQRT12 btScalar(0.7071067811865475244008443621048490)
+
+#define btRecipSqrt(x) ((btScalar)(btScalar(1.0) / btSqrt(btScalar(x)))) /* reciprocal square root */
+
+#ifdef BT_USE_DOUBLE_PRECISION
+#define SIMD_EPSILON DBL_EPSILON
+#define SIMD_INFINITY DBL_MAX
+#else
+#define SIMD_EPSILON FLT_EPSILON
+#define SIMD_INFINITY FLT_MAX
+#endif
+
+SIMD_FORCE_INLINE btScalar btAtan2Fast(btScalar y, btScalar x)
+{
+    btScalar coeff_1 = SIMD_PI / 4.0f;
+    btScalar coeff_2 = 3.0f * coeff_1;
+    btScalar abs_y = btFabs(y);
+    btScalar angle;
+    if (x >= 0.0f) {
+        btScalar r = (x - abs_y) / (x + abs_y);
+        angle = coeff_1 - coeff_1 * r;
+    }
+    else {
+        btScalar r = (x + abs_y) / (abs_y - x);
+        angle = coeff_2 - coeff_1 * r;
+    }
+    return (y < 0.0f) ? -angle : angle;
+}
+
+SIMD_FORCE_INLINE bool btFuzzyZero(btScalar x) { return btFabs(x) < SIMD_EPSILON; }
+
+SIMD_FORCE_INLINE bool btEqual(btScalar a, btScalar eps)
+{
+    return (((a) <= eps) && !((a) < -eps));
+}
+SIMD_FORCE_INLINE bool btGreaterEqual(btScalar a, btScalar eps)
+{
+    return (!((a) <= eps));
+}
+
+SIMD_FORCE_INLINE int32_t btIsNegative(btScalar x)
+{
+    return x < btScalar(0.0) ? 1 : 0;
+}
+
+SIMD_FORCE_INLINE btScalar btRadians(btScalar x) { return x * SIMD_RADS_PER_DEG; }
+SIMD_FORCE_INLINE btScalar btDegrees(btScalar x) { return x * SIMD_DEGS_PER_RAD; }
+
+#define BT_DECLARE_HANDLE(name) \
+    typedef struct name##__ {   \
+        int32_t unused;             \
+    } * name
+
+#ifndef btFsel
+SIMD_FORCE_INLINE btScalar btFsel(btScalar a, btScalar b, btScalar c)
+{
+    return a >= 0 ? b : c;
+}
+#endif
+#define btFsels(a, b, c) (btScalar) btFsel(a, b, c)
+
+SIMD_FORCE_INLINE bool btMachineIsLittleEndian()
+{
+    long int i = 1;
+    const char* p = (const char*)&i;
+    if (p[0] == 1) // Lowest address contains the least significant byte
+        return true;
+    else
+        return false;
+}
+
+///btSelect avoids branches, which makes performance much better for consoles like Playstation 3 and XBox 360
+///Thanks Phil Knight. See also http://www.cellperformance.com/articles/2006/04/more_techniques_for_eliminatin_1.html
+SIMD_FORCE_INLINE unsigned btSelect(unsigned condition, unsigned valueIfConditionNonZero, unsigned valueIfConditionZero)
+{
+    // Set testNz to 0xFFFFFFFF if condition is nonzero, 0x00000000 if condition is zero
+    // Rely on positive value or'ed with its negative having sign bit on
+    // and zero value or'ed with its negative (which is still zero) having sign bit off
+    // Use arithmetic shift right, shifting the sign bit through all 32 bits
+    unsigned testNz = (unsigned)(((int32_t)condition | -(int32_t)condition) >> 31);
+    unsigned testEqz = ~testNz;
+    return ((valueIfConditionNonZero & testNz) | (valueIfConditionZero & testEqz));
+}
+SIMD_FORCE_INLINE int32_t btSelect(unsigned condition, int32_t valueIfConditionNonZero, int32_t valueIfConditionZero)
+{
+    unsigned testNz = (unsigned)(((int32_t)condition | -(int32_t)condition) >> 31);
+    unsigned testEqz = ~testNz;
+    return static_cast<int32_t>((valueIfConditionNonZero & testNz) | (valueIfConditionZero & testEqz));
+}
+SIMD_FORCE_INLINE float btSelect(unsigned condition, float valueIfConditionNonZero, float valueIfConditionZero)
+{
+#ifdef BT_HAVE_NATIVE_FSEL
+    return (float)btFsel((btScalar)condition - btScalar(1.0f), valueIfConditionNonZero, valueIfConditionZero);
+#else
+    return (condition != 0) ? valueIfConditionNonZero : valueIfConditionZero;
+#endif
+}
+
+template <typename T>
+SIMD_FORCE_INLINE void btSwap(T& a, T& b)
+{
+    T tmp = a;
+    a = b;
+    b = tmp;
+}
+
+//PCK: endian swapping functions
+SIMD_FORCE_INLINE unsigned btSwapEndian(unsigned val)
+{
+    return (((val & 0xff000000) >> 24) | ((val & 0x00ff0000) >> 8) | ((val & 0x0000ff00) << 8) | ((val & 0x000000ff) << 24));
+}
+
+SIMD_FORCE_INLINE unsigned short btSwapEndian(unsigned short val)
+{
+    return static_cast<unsigned short>(((val & 0xff00) >> 8) | ((val & 0x00ff) << 8));
+}
+
+SIMD_FORCE_INLINE unsigned btSwapEndian(int32_t val)
+{
+    return btSwapEndian((unsigned)val);
+}
+
+SIMD_FORCE_INLINE unsigned short btSwapEndian(short val)
+{
+    return btSwapEndian((unsigned short)val);
+}
+
+///btSwapFloat uses using char pointers to swap the endianness
+////btSwapFloat/btSwapDouble will NOT return a float, because the machine might 'correct' invalid floating point values
+///Not all values of sign/exponent/mantissa are valid floating point numbers according to IEEE 754.
+///When a floating point unit is faced with an invalid value, it may actually change the value, or worse, throw an exception.
+///In most systems, running user mode code, you wouldn't get an exception, but instead the hardware/os/runtime will 'fix' the number for you.
+///so instead of returning a float/double, we return integer/long long integer
+SIMD_FORCE_INLINE uint32_t btSwapEndianFloat(float d)
+{
+    uint32_t a = 0;
+    unsigned char* dst = (unsigned char*)&a;
+    unsigned char* src = (unsigned char*)&d;
+
+    dst[0] = src[3];
+    dst[1] = src[2];
+    dst[2] = src[1];
+    dst[3] = src[0];
+    return a;
+}
+
+// unswap using char pointers
+SIMD_FORCE_INLINE float btUnswapEndianFloat(uint32_t a)
+{
+    float d = 0.0f;
+    unsigned char* src = (unsigned char*)&a;
+    unsigned char* dst = (unsigned char*)&d;
+
+    dst[0] = src[3];
+    dst[1] = src[2];
+    dst[2] = src[1];
+    dst[3] = src[0];
+
+    return d;
+}
+
+// swap using char pointers
+SIMD_FORCE_INLINE void btSwapEndianDouble(double d, unsigned char* dst)
+{
+    unsigned char* src = (unsigned char*)&d;
+
+    dst[0] = src[7];
+    dst[1] = src[6];
+    dst[2] = src[5];
+    dst[3] = src[4];
+    dst[4] = src[3];
+    dst[5] = src[2];
+    dst[6] = src[1];
+    dst[7] = src[0];
+}
+
+// unswap using char pointers
+SIMD_FORCE_INLINE double btUnswapEndianDouble(const unsigned char* src)
+{
+    double d = 0.0;
+    unsigned char* dst = (unsigned char*)&d;
+
+    dst[0] = src[7];
+    dst[1] = src[6];
+    dst[2] = src[5];
+    dst[3] = src[4];
+    dst[4] = src[3];
+    dst[5] = src[2];
+    dst[6] = src[1];
+    dst[7] = src[0];
+
+    return d;
+}
+
+// returns normalized value in range [-SIMD_PI, SIMD_PI]
+SIMD_FORCE_INLINE btScalar btNormalizeAngle(btScalar angleInRadians)
+{
+    angleInRadians = btFmod(angleInRadians, SIMD_2_PI);
+    if (angleInRadians < -SIMD_PI) {
+        return angleInRadians + SIMD_2_PI;
+    }
+    else if (angleInRadians > SIMD_PI) {
+        return angleInRadians - SIMD_2_PI;
+    }
+    else {
+        return angleInRadians;
+    }
+}
+
+///rudimentary class to provide type info
+struct btTypedObject {
+    btTypedObject(int32_t objectType)
+        : m_objectType(objectType)
+    {
+    }
+    int32_t m_objectType;
+    inline int32_t getObjectType() const
+    {
+        return m_objectType;
+    }
+};
+
+// -- GODOT start --
+// Cherry-picked from Bullet 2.88 to fix GH-27926
+///align a pointer to the provided alignment, upwards
+template <typename T>
+T *btAlignPointer(T *unalignedPtr, size_t alignment)
+{
+    struct btConvertPointerSizeT
+    {
+        union {
+            T *ptr;
+            size_t integer;
+        };
+    };
+    btConvertPointerSizeT converter;
+
+    const size_t bit_mask = ~(alignment - 1);
+    converter.ptr = unalignedPtr;
+    converter.integer += alignment - 1;
+    converter.integer &= bit_mask;
+    return converter.ptr;
+}
+// -- GODOT end --
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_SCALAR_H
diff --git a/thirdparty/vhacd/inc/btVector3.h b/thirdparty/vhacd/inc/btVector3.h
new file mode 100644
index 0000000000..4ed9716734
--- /dev/null
+++ b/thirdparty/vhacd/inc/btVector3.h
@@ -0,0 +1,723 @@
+/*
+Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef BT_VECTOR3_H
+#define BT_VECTOR3_H
+
+#include "btMinMax.h"
+#include "btScalar.h"
+
+#ifdef BT_USE_DOUBLE_PRECISION
+#define btVector3Data btVector3DoubleData
+#define btVector3DataName "btVector3DoubleData"
+#else
+#define btVector3Data btVector3FloatData
+#define btVector3DataName "btVector3FloatData"
+#endif //BT_USE_DOUBLE_PRECISION
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+/**@brief btVector3 can be used to represent 3D points and vectors.
+ * It has an un-used w component to suit 16-byte alignment when btVector3 is stored in containers. This extra component can be used by derived classes (Quaternion?) or by user
+ * Ideally, this class should be replaced by a platform optimized SIMD version that keeps the data in registers
+ */
+ATTRIBUTE_ALIGNED16(class)
+btVector3
+{
+public:
+#if defined(__SPU__) && defined(__CELLOS_LV2__)
+    btScalar m_floats[4];
+
+public:
+    SIMD_FORCE_INLINE const vec_float4& get128() const
+    {
+        return *((const vec_float4*)&m_floats[0]);
+    }
+
+public:
+#else //__CELLOS_LV2__ __SPU__
+#ifdef BT_USE_SSE // _WIN32
+    union {
+        __m128 mVec128;
+        btScalar m_floats[4];
+    };
+    SIMD_FORCE_INLINE __m128 get128() const
+    {
+        return mVec128;
+    }
+    SIMD_FORCE_INLINE void set128(__m128 v128)
+    {
+        mVec128 = v128;
+    }
+#else
+    btScalar m_floats[4];
+#endif
+#endif //__CELLOS_LV2__ __SPU__
+
+public:
+    /**@brief No initialization constructor */
+    SIMD_FORCE_INLINE btVector3() {}
+
+    /**@brief Constructor from scalars 
+   * @param x X value
+   * @param y Y value 
+   * @param z Z value 
+   */
+    SIMD_FORCE_INLINE btVector3(const btScalar& x, const btScalar& y, const btScalar& z)
+    {
+        m_floats[0] = x;
+        m_floats[1] = y;
+        m_floats[2] = z;
+        m_floats[3] = btScalar(0.);
+    }
+
+    /**@brief Add a vector to this one 
+ * @param The vector to add to this one */
+    SIMD_FORCE_INLINE btVector3& operator+=(const btVector3& v)
+    {
+
+        m_floats[0] += v.m_floats[0];
+        m_floats[1] += v.m_floats[1];
+        m_floats[2] += v.m_floats[2];
+        return *this;
+    }
+
+    /**@brief Subtract a vector from this one
+   * @param The vector to subtract */
+    SIMD_FORCE_INLINE btVector3& operator-=(const btVector3& v)
+    {
+        m_floats[0] -= v.m_floats[0];
+        m_floats[1] -= v.m_floats[1];
+        m_floats[2] -= v.m_floats[2];
+        return *this;
+    }
+    /**@brief Scale the vector
+   * @param s Scale factor */
+    SIMD_FORCE_INLINE btVector3& operator*=(const btScalar& s)
+    {
+        m_floats[0] *= s;
+        m_floats[1] *= s;
+        m_floats[2] *= s;
+        return *this;
+    }
+
+    /**@brief Inversely scale the vector 
+   * @param s Scale factor to divide by */
+    SIMD_FORCE_INLINE btVector3& operator/=(const btScalar& s)
+    {
+        btFullAssert(s != btScalar(0.0));
+        return * this *= btScalar(1.0) / s;
+    }
+
+    /**@brief Return the dot product
+   * @param v The other vector in the dot product */
+    SIMD_FORCE_INLINE btScalar dot(const btVector3& v) const
+    {
+        return m_floats[0] * v.m_floats[0] + m_floats[1] * v.m_floats[1] + m_floats[2] * v.m_floats[2];
+    }
+
+    /**@brief Return the length of the vector squared */
+    SIMD_FORCE_INLINE btScalar length2() const
+    {
+        return dot(*this);
+    }
+
+    /**@brief Return the length of the vector */
+    SIMD_FORCE_INLINE btScalar length() const
+    {
+        return btSqrt(length2());
+    }
+
+    /**@brief Return the distance squared between the ends of this and another vector
+   * This is symantically treating the vector like a point */
+    SIMD_FORCE_INLINE btScalar distance2(const btVector3& v) const;
+
+    /**@brief Return the distance between the ends of this and another vector
+   * This is symantically treating the vector like a point */
+    SIMD_FORCE_INLINE btScalar distance(const btVector3& v) const;
+
+    SIMD_FORCE_INLINE btVector3& safeNormalize()
+    {
+        btVector3 absVec = this->absolute();
+        int32_t maxIndex = absVec.maxAxis();
+        if (absVec[maxIndex] > 0) {
+            *this /= absVec[maxIndex];
+            return * this /= length();
+        }
+        setValue(1, 0, 0);
+        return *this;
+    }
+
+    /**@brief Normalize this vector 
+   * x^2 + y^2 + z^2 = 1 */
+    SIMD_FORCE_INLINE btVector3& normalize()
+    {
+        return * this /= length();
+    }
+
+    /**@brief Return a normalized version of this vector */
+    SIMD_FORCE_INLINE btVector3 normalized() const;
+
+    /**@brief Return a rotated version of this vector
+   * @param wAxis The axis to rotate about 
+   * @param angle The angle to rotate by */
+    SIMD_FORCE_INLINE btVector3 rotate(const btVector3& wAxis, const btScalar angle) const;
+
+    /**@brief Return the angle between this and another vector
+   * @param v The other vector */
+    SIMD_FORCE_INLINE btScalar angle(const btVector3& v) const
+    {
+        btScalar s = btSqrt(length2() * v.length2());
+        btFullAssert(s != btScalar(0.0));
+        return btAcos(dot(v) / s);
+    }
+    /**@brief Return a vector will the absolute values of each element */
+    SIMD_FORCE_INLINE btVector3 absolute() const
+    {
+        return btVector3(
+            btFabs(m_floats[0]),
+            btFabs(m_floats[1]),
+            btFabs(m_floats[2]));
+    }
+    /**@brief Return the cross product between this and another vector 
+   * @param v The other vector */
+    SIMD_FORCE_INLINE btVector3 cross(const btVector3& v) const
+    {
+        return btVector3(
+            m_floats[1] * v.m_floats[2] - m_floats[2] * v.m_floats[1],
+            m_floats[2] * v.m_floats[0] - m_floats[0] * v.m_floats[2],
+            m_floats[0] * v.m_floats[1] - m_floats[1] * v.m_floats[0]);
+    }
+
+    SIMD_FORCE_INLINE btScalar triple(const btVector3& v1, const btVector3& v2) const
+    {
+        return m_floats[0] * (v1.m_floats[1] * v2.m_floats[2] - v1.m_floats[2] * v2.m_floats[1]) + m_floats[1] * (v1.m_floats[2] * v2.m_floats[0] - v1.m_floats[0] * v2.m_floats[2]) + m_floats[2] * (v1.m_floats[0] * v2.m_floats[1] - v1.m_floats[1] * v2.m_floats[0]);
+    }
+
+    /**@brief Return the axis with the smallest value 
+   * Note return values are 0,1,2 for x, y, or z */
+    SIMD_FORCE_INLINE int32_t minAxis() const
+    {
+        return m_floats[0] < m_floats[1] ? (m_floats[0] < m_floats[2] ? 0 : 2) : (m_floats[1] < m_floats[2] ? 1 : 2);
+    }
+
+    /**@brief Return the axis with the largest value 
+   * Note return values are 0,1,2 for x, y, or z */
+    SIMD_FORCE_INLINE int32_t maxAxis() const
+    {
+        return m_floats[0] < m_floats[1] ? (m_floats[1] < m_floats[2] ? 2 : 1) : (m_floats[0] < m_floats[2] ? 2 : 0);
+    }
+
+    SIMD_FORCE_INLINE int32_t furthestAxis() const
+    {
+        return absolute().minAxis();
+    }
+
+    SIMD_FORCE_INLINE int32_t closestAxis() const
+    {
+        return absolute().maxAxis();
+    }
+
+    SIMD_FORCE_INLINE void setInterpolate3(const btVector3& v0, const btVector3& v1, btScalar rt)
+    {
+        btScalar s = btScalar(1.0) - rt;
+        m_floats[0] = s * v0.m_floats[0] + rt * v1.m_floats[0];
+        m_floats[1] = s * v0.m_floats[1] + rt * v1.m_floats[1];
+        m_floats[2] = s * v0.m_floats[2] + rt * v1.m_floats[2];
+        //don't do the unused w component
+        //		m_co[3] = s * v0[3] + rt * v1[3];
+    }
+
+    /**@brief Return the linear interpolation between this and another vector 
+   * @param v The other vector 
+   * @param t The ration of this to v (t = 0 => return this, t=1 => return other) */
+    SIMD_FORCE_INLINE btVector3 lerp(const btVector3& v, const btScalar& t) const
+    {
+        return btVector3(m_floats[0] + (v.m_floats[0] - m_floats[0]) * t,
+            m_floats[1] + (v.m_floats[1] - m_floats[1]) * t,
+            m_floats[2] + (v.m_floats[2] - m_floats[2]) * t);
+    }
+
+    /**@brief Elementwise multiply this vector by the other 
+   * @param v The other vector */
+    SIMD_FORCE_INLINE btVector3& operator*=(const btVector3& v)
+    {
+        m_floats[0] *= v.m_floats[0];
+        m_floats[1] *= v.m_floats[1];
+        m_floats[2] *= v.m_floats[2];
+        return *this;
+    }
+
+    /**@brief Return the x value */
+    SIMD_FORCE_INLINE const btScalar& getX() const { return m_floats[0]; }
+    /**@brief Return the y value */
+    SIMD_FORCE_INLINE const btScalar& getY() const { return m_floats[1]; }
+    /**@brief Return the z value */
+    SIMD_FORCE_INLINE const btScalar& getZ() const { return m_floats[2]; }
+    /**@brief Set the x value */
+    SIMD_FORCE_INLINE void setX(btScalar x) { m_floats[0] = x; };
+    /**@brief Set the y value */
+    SIMD_FORCE_INLINE void setY(btScalar y) { m_floats[1] = y; };
+    /**@brief Set the z value */
+    SIMD_FORCE_INLINE void setZ(btScalar z) { m_floats[2] = z; };
+    /**@brief Set the w value */
+    SIMD_FORCE_INLINE void setW(btScalar w) { m_floats[3] = w; };
+    /**@brief Return the x value */
+    SIMD_FORCE_INLINE const btScalar& x() const { return m_floats[0]; }
+    /**@brief Return the y value */
+    SIMD_FORCE_INLINE const btScalar& y() const { return m_floats[1]; }
+    /**@brief Return the z value */
+    SIMD_FORCE_INLINE const btScalar& z() const { return m_floats[2]; }
+    /**@brief Return the w value */
+    SIMD_FORCE_INLINE const btScalar& w() const { return m_floats[3]; }
+
+    //SIMD_FORCE_INLINE btScalar&       operator[](int32_t i)       { return (&m_floats[0])[i];	}
+    //SIMD_FORCE_INLINE const btScalar& operator[](int32_t i) const { return (&m_floats[0])[i]; }
+    ///operator btScalar*() replaces operator[], using implicit conversion. We added operator != and operator == to avoid pointer comparisons.
+    SIMD_FORCE_INLINE operator btScalar*() { return &m_floats[0]; }
+    SIMD_FORCE_INLINE operator const btScalar*() const { return &m_floats[0]; }
+
+    SIMD_FORCE_INLINE bool operator==(const btVector3& other) const
+    {
+        return ((m_floats[3] == other.m_floats[3]) && (m_floats[2] == other.m_floats[2]) && (m_floats[1] == other.m_floats[1]) && (m_floats[0] == other.m_floats[0]));
+    }
+
+    SIMD_FORCE_INLINE bool operator!=(const btVector3& other) const
+    {
+        return !(*this == other);
+    }
+
+    /**@brief Set each element to the max of the current values and the values of another btVector3
+   * @param other The other btVector3 to compare with 
+   */
+    SIMD_FORCE_INLINE void setMax(const btVector3& other)
+    {
+        btSetMax(m_floats[0], other.m_floats[0]);
+        btSetMax(m_floats[1], other.m_floats[1]);
+        btSetMax(m_floats[2], other.m_floats[2]);
+        btSetMax(m_floats[3], other.w());
+    }
+    /**@brief Set each element to the min of the current values and the values of another btVector3
+   * @param other The other btVector3 to compare with 
+   */
+    SIMD_FORCE_INLINE void setMin(const btVector3& other)
+    {
+        btSetMin(m_floats[0], other.m_floats[0]);
+        btSetMin(m_floats[1], other.m_floats[1]);
+        btSetMin(m_floats[2], other.m_floats[2]);
+        btSetMin(m_floats[3], other.w());
+    }
+
+    SIMD_FORCE_INLINE void setValue(const btScalar& x, const btScalar& y, const btScalar& z)
+    {
+        m_floats[0] = x;
+        m_floats[1] = y;
+        m_floats[2] = z;
+        m_floats[3] = btScalar(0.);
+    }
+
+    void getSkewSymmetricMatrix(btVector3 * v0, btVector3 * v1, btVector3 * v2) const
+    {
+        v0->setValue(0., -z(), y());
+        v1->setValue(z(), 0., -x());
+        v2->setValue(-y(), x(), 0.);
+    }
+
+    void setZero()
+    {
+        setValue(btScalar(0.), btScalar(0.), btScalar(0.));
+    }
+
+    SIMD_FORCE_INLINE bool isZero() const
+    {
+        return m_floats[0] == btScalar(0) && m_floats[1] == btScalar(0) && m_floats[2] == btScalar(0);
+    }
+
+    SIMD_FORCE_INLINE bool fuzzyZero() const
+    {
+        return length2() < SIMD_EPSILON;
+    }
+
+    SIMD_FORCE_INLINE void serialize(struct btVector3Data & dataOut) const;
+
+    SIMD_FORCE_INLINE void deSerialize(const struct btVector3Data& dataIn);
+
+    SIMD_FORCE_INLINE void serializeFloat(struct btVector3FloatData & dataOut) const;
+
+    SIMD_FORCE_INLINE void deSerializeFloat(const struct btVector3FloatData& dataIn);
+
+    SIMD_FORCE_INLINE void serializeDouble(struct btVector3DoubleData & dataOut) const;
+
+    SIMD_FORCE_INLINE void deSerializeDouble(const struct btVector3DoubleData& dataIn);
+};
+
+/**@brief Return the sum of two vectors (Point symantics)*/
+SIMD_FORCE_INLINE btVector3
+operator+(const btVector3& v1, const btVector3& v2)
+{
+    return btVector3(v1.m_floats[0] + v2.m_floats[0], v1.m_floats[1] + v2.m_floats[1], v1.m_floats[2] + v2.m_floats[2]);
+}
+
+/**@brief Return the elementwise product of two vectors */
+SIMD_FORCE_INLINE btVector3
+operator*(const btVector3& v1, const btVector3& v2)
+{
+    return btVector3(v1.m_floats[0] * v2.m_floats[0], v1.m_floats[1] * v2.m_floats[1], v1.m_floats[2] * v2.m_floats[2]);
+}
+
+/**@brief Return the difference between two vectors */
+SIMD_FORCE_INLINE btVector3
+operator-(const btVector3& v1, const btVector3& v2)
+{
+    return btVector3(v1.m_floats[0] - v2.m_floats[0], v1.m_floats[1] - v2.m_floats[1], v1.m_floats[2] - v2.m_floats[2]);
+}
+/**@brief Return the negative of the vector */
+SIMD_FORCE_INLINE btVector3
+operator-(const btVector3& v)
+{
+    return btVector3(-v.m_floats[0], -v.m_floats[1], -v.m_floats[2]);
+}
+
+/**@brief Return the vector scaled by s */
+SIMD_FORCE_INLINE btVector3
+operator*(const btVector3& v, const btScalar& s)
+{
+    return btVector3(v.m_floats[0] * s, v.m_floats[1] * s, v.m_floats[2] * s);
+}
+
+/**@brief Return the vector scaled by s */
+SIMD_FORCE_INLINE btVector3
+operator*(const btScalar& s, const btVector3& v)
+{
+    return v * s;
+}
+
+/**@brief Return the vector inversely scaled by s */
+SIMD_FORCE_INLINE btVector3
+operator/(const btVector3& v, const btScalar& s)
+{
+    btFullAssert(s != btScalar(0.0));
+    return v * (btScalar(1.0) / s);
+}
+
+/**@brief Return the vector inversely scaled by s */
+SIMD_FORCE_INLINE btVector3
+operator/(const btVector3& v1, const btVector3& v2)
+{
+    return btVector3(v1.m_floats[0] / v2.m_floats[0], v1.m_floats[1] / v2.m_floats[1], v1.m_floats[2] / v2.m_floats[2]);
+}
+
+/**@brief Return the dot product between two vectors */
+SIMD_FORCE_INLINE btScalar
+btDot(const btVector3& v1, const btVector3& v2)
+{
+    return v1.dot(v2);
+}
+
+/**@brief Return the distance squared between two vectors */
+SIMD_FORCE_INLINE btScalar
+btDistance2(const btVector3& v1, const btVector3& v2)
+{
+    return v1.distance2(v2);
+}
+
+/**@brief Return the distance between two vectors */
+SIMD_FORCE_INLINE btScalar
+btDistance(const btVector3& v1, const btVector3& v2)
+{
+    return v1.distance(v2);
+}
+
+/**@brief Return the angle between two vectors */
+SIMD_FORCE_INLINE btScalar
+btAngle(const btVector3& v1, const btVector3& v2)
+{
+    return v1.angle(v2);
+}
+
+/**@brief Return the cross product of two vectors */
+SIMD_FORCE_INLINE btVector3
+btCross(const btVector3& v1, const btVector3& v2)
+{
+    return v1.cross(v2);
+}
+
+SIMD_FORCE_INLINE btScalar
+btTriple(const btVector3& v1, const btVector3& v2, const btVector3& v3)
+{
+    return v1.triple(v2, v3);
+}
+
+/**@brief Return the linear interpolation between two vectors
+ * @param v1 One vector 
+ * @param v2 The other vector 
+ * @param t The ration of this to v (t = 0 => return v1, t=1 => return v2) */
+SIMD_FORCE_INLINE btVector3
+lerp(const btVector3& v1, const btVector3& v2, const btScalar& t)
+{
+    return v1.lerp(v2, t);
+}
+
+SIMD_FORCE_INLINE btScalar btVector3::distance2(const btVector3& v) const
+{
+    return (v - *this).length2();
+}
+
+SIMD_FORCE_INLINE btScalar btVector3::distance(const btVector3& v) const
+{
+    return (v - *this).length();
+}
+
+SIMD_FORCE_INLINE btVector3 btVector3::normalized() const
+{
+    return *this / length();
+}
+
+SIMD_FORCE_INLINE btVector3 btVector3::rotate(const btVector3& wAxis, const btScalar angle) const
+{
+    // wAxis must be a unit lenght vector
+
+    btVector3 o = wAxis * wAxis.dot(*this);
+    btVector3 x = *this - o;
+    btVector3 y;
+
+    y = wAxis.cross(*this);
+
+    return (o + x * btCos(angle) + y * btSin(angle));
+}
+
+class btVector4 : public btVector3 {
+public:
+    SIMD_FORCE_INLINE btVector4() {}
+
+    SIMD_FORCE_INLINE btVector4(const btScalar& x, const btScalar& y, const btScalar& z, const btScalar& w)
+        : btVector3(x, y, z)
+    {
+        m_floats[3] = w;
+    }
+
+    SIMD_FORCE_INLINE btVector4 absolute4() const
+    {
+        return btVector4(
+            btFabs(m_floats[0]),
+            btFabs(m_floats[1]),
+            btFabs(m_floats[2]),
+            btFabs(m_floats[3]));
+    }
+
+    btScalar getW() const { return m_floats[3]; }
+
+    SIMD_FORCE_INLINE int32_t maxAxis4() const
+    {
+        int32_t maxIndex = -1;
+        btScalar maxVal = btScalar(-BT_LARGE_FLOAT);
+        if (m_floats[0] > maxVal) {
+            maxIndex = 0;
+            maxVal = m_floats[0];
+        }
+        if (m_floats[1] > maxVal) {
+            maxIndex = 1;
+            maxVal = m_floats[1];
+        }
+        if (m_floats[2] > maxVal) {
+            maxIndex = 2;
+            maxVal = m_floats[2];
+        }
+        if (m_floats[3] > maxVal) {
+            maxIndex = 3;
+        }
+        return maxIndex;
+    }
+
+    SIMD_FORCE_INLINE int32_t minAxis4() const
+    {
+        int32_t minIndex = -1;
+        btScalar minVal = btScalar(BT_LARGE_FLOAT);
+        if (m_floats[0] < minVal) {
+            minIndex = 0;
+            minVal = m_floats[0];
+        }
+        if (m_floats[1] < minVal) {
+            minIndex = 1;
+            minVal = m_floats[1];
+        }
+        if (m_floats[2] < minVal) {
+            minIndex = 2;
+            minVal = m_floats[2];
+        }
+        if (m_floats[3] < minVal) {
+            minIndex = 3;
+        }
+
+        return minIndex;
+    }
+
+    SIMD_FORCE_INLINE int32_t closestAxis4() const
+    {
+        return absolute4().maxAxis4();
+    }
+
+    /**@brief Set x,y,z and zero w 
+   * @param x Value of x
+   * @param y Value of y
+   * @param z Value of z
+   */
+
+    /*		void getValue(btScalar *m) const 
+		{
+			m[0] = m_floats[0];
+			m[1] = m_floats[1];
+			m[2] =m_floats[2];
+		}
+*/
+    /**@brief Set the values 
+   * @param x Value of x
+   * @param y Value of y
+   * @param z Value of z
+   * @param w Value of w
+   */
+    SIMD_FORCE_INLINE void setValue(const btScalar& x, const btScalar& y, const btScalar& z, const btScalar& w)
+    {
+        m_floats[0] = x;
+        m_floats[1] = y;
+        m_floats[2] = z;
+        m_floats[3] = w;
+    }
+};
+
+///btSwapVector3Endian swaps vector endianness, useful for network and cross-platform serialization
+SIMD_FORCE_INLINE void btSwapScalarEndian(const btScalar& sourceVal, btScalar& destVal)
+{
+#ifdef BT_USE_DOUBLE_PRECISION
+    unsigned char* dest = (unsigned char*)&destVal;
+    unsigned char* src = (unsigned char*)&sourceVal;
+    dest[0] = src[7];
+    dest[1] = src[6];
+    dest[2] = src[5];
+    dest[3] = src[4];
+    dest[4] = src[3];
+    dest[5] = src[2];
+    dest[6] = src[1];
+    dest[7] = src[0];
+#else
+    unsigned char* dest = (unsigned char*)&destVal;
+    unsigned char* src = (unsigned char*)&sourceVal;
+    dest[0] = src[3];
+    dest[1] = src[2];
+    dest[2] = src[1];
+    dest[3] = src[0];
+#endif //BT_USE_DOUBLE_PRECISION
+}
+///btSwapVector3Endian swaps vector endianness, useful for network and cross-platform serialization
+SIMD_FORCE_INLINE void btSwapVector3Endian(const btVector3& sourceVec, btVector3& destVec)
+{
+    for (int32_t i = 0; i < 4; i++) {
+        btSwapScalarEndian(sourceVec[i], destVec[i]);
+    }
+}
+
+///btUnSwapVector3Endian swaps vector endianness, useful for network and cross-platform serialization
+SIMD_FORCE_INLINE void btUnSwapVector3Endian(btVector3& vector)
+{
+
+    btVector3 swappedVec;
+    for (int32_t i = 0; i < 4; i++) {
+        btSwapScalarEndian(vector[i], swappedVec[i]);
+    }
+    vector = swappedVec;
+}
+
+template <class T>
+SIMD_FORCE_INLINE void btPlaneSpace1(const T& n, T& p, T& q)
+{
+    if (btFabs(n[2]) > SIMDSQRT12) {
+        // choose p in y-z plane
+        btScalar a = n[1] * n[1] + n[2] * n[2];
+        btScalar k = btRecipSqrt(a);
+        p[0] = 0;
+        p[1] = -n[2] * k;
+        p[2] = n[1] * k;
+        // set q = n x p
+        q[0] = a * k;
+        q[1] = -n[0] * p[2];
+        q[2] = n[0] * p[1];
+    }
+    else {
+        // choose p in x-y plane
+        btScalar a = n[0] * n[0] + n[1] * n[1];
+        btScalar k = btRecipSqrt(a);
+        p[0] = -n[1] * k;
+        p[1] = n[0] * k;
+        p[2] = 0;
+        // set q = n x p
+        q[0] = -n[2] * p[1];
+        q[1] = n[2] * p[0];
+        q[2] = a * k;
+    }
+}
+
+struct btVector3FloatData {
+    float m_floats[4];
+};
+
+struct btVector3DoubleData {
+    double m_floats[4];
+};
+
+SIMD_FORCE_INLINE void btVector3::serializeFloat(struct btVector3FloatData& dataOut) const
+{
+    ///could also do a memcpy, check if it is worth it
+    for (int32_t i = 0; i < 4; i++)
+        dataOut.m_floats[i] = float(m_floats[i]);
+}
+
+SIMD_FORCE_INLINE void btVector3::deSerializeFloat(const struct btVector3FloatData& dataIn)
+{
+    for (int32_t i = 0; i < 4; i++)
+        m_floats[i] = btScalar(dataIn.m_floats[i]);
+}
+
+SIMD_FORCE_INLINE void btVector3::serializeDouble(struct btVector3DoubleData& dataOut) const
+{
+    ///could also do a memcpy, check if it is worth it
+    for (int32_t i = 0; i < 4; i++)
+        dataOut.m_floats[i] = double(m_floats[i]);
+}
+
+SIMD_FORCE_INLINE void btVector3::deSerializeDouble(const struct btVector3DoubleData& dataIn)
+{
+    for (int32_t i = 0; i < 4; i++)
+        m_floats[i] = btScalar(dataIn.m_floats[i]);
+}
+
+SIMD_FORCE_INLINE void btVector3::serialize(struct btVector3Data& dataOut) const
+{
+    ///could also do a memcpy, check if it is worth it
+    for (int32_t i = 0; i < 4; i++)
+        dataOut.m_floats[i] = m_floats[i];
+}
+
+SIMD_FORCE_INLINE void btVector3::deSerialize(const struct btVector3Data& dataIn)
+{
+    for (int32_t i = 0; i < 4; i++)
+        m_floats[i] = dataIn.m_floats[i];
+}
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_VECTOR3_H
diff --git a/thirdparty/vhacd/inc/vhacdCircularList.h b/thirdparty/vhacd/inc/vhacdCircularList.h
new file mode 100644
index 0000000000..0f5ddf9ecf
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdCircularList.h
@@ -0,0 +1,79 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_CIRCULAR_LIST_H
+#define VHACD_CIRCULAR_LIST_H
+#include <stdlib.h>
+namespace VHACD {
+//!    CircularListElement class.
+template <typename T>
+class CircularListElement {
+public:
+    T& GetData() { return m_data; }
+    const T& GetData() const { return m_data; }
+    CircularListElement<T>*& GetNext() { return m_next; }
+    CircularListElement<T>*& GetPrev() { return m_prev; }
+    const CircularListElement<T>*& GetNext() const { return m_next; }
+    const CircularListElement<T>*& GetPrev() const { return m_prev; }
+    //!    Constructor
+    CircularListElement(const T& data) { m_data = data; }
+    CircularListElement(void) {}
+    //! Destructor
+    ~CircularListElement(void) {}
+private:
+    T m_data;
+    CircularListElement<T>* m_next;
+    CircularListElement<T>* m_prev;
+
+    CircularListElement(const CircularListElement& rhs);
+};
+//!    CircularList class.
+template <typename T>
+class CircularList {
+public:
+    CircularListElement<T>*& GetHead() { return m_head; }
+    const CircularListElement<T>* GetHead() const { return m_head; }
+    bool IsEmpty() const { return (m_size == 0); }
+    size_t GetSize() const { return m_size; }
+    const T& GetData() const { return m_head->GetData(); }
+    T& GetData() { return m_head->GetData(); }
+    bool Delete();
+    bool Delete(CircularListElement<T>* element);
+    CircularListElement<T>* Add(const T* data = 0);
+    CircularListElement<T>* Add(const T& data);
+    bool Next();
+    bool Prev();
+    void Clear()
+    {
+        while (Delete())
+            ;
+    };
+    const CircularList& operator=(const CircularList& rhs);
+    //!    Constructor
+    CircularList()
+    {
+        m_head = 0;
+        m_size = 0;
+    }
+    CircularList(const CircularList& rhs);
+    //! Destructor
+    ~CircularList(void) { Clear(); };
+private:
+    CircularListElement<T>* m_head; //!< a pointer to the head of the circular list
+    size_t m_size; //!< number of element in the circular list
+};
+}
+#include "vhacdCircularList.inl"
+#endif // VHACD_CIRCULAR_LIST_H
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdCircularList.inl b/thirdparty/vhacd/inc/vhacdCircularList.inl
new file mode 100644
index 0000000000..2be5180524
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdCircularList.inl
@@ -0,0 +1,161 @@
+#pragma once
+#ifndef HACD_CIRCULAR_LIST_INL
+#define HACD_CIRCULAR_LIST_INL
+namespace VHACD
+{
+    template < typename T > 
+    inline bool CircularList<T>::Delete(CircularListElement<T> * element)
+    {
+        if (!element)
+        {
+            return false;
+        }
+        if (m_size > 1)
+        {
+            CircularListElement<T> * next = element->GetNext();
+            CircularListElement<T> * prev = element->GetPrev();
+            delete element;
+            m_size--;
+            if (element == m_head)
+            {
+                m_head = next;
+            }
+            next->GetPrev() = prev;
+            prev->GetNext() = next;
+            return true;
+        }
+        else if (m_size == 1)
+        {
+            delete m_head;
+            m_size--;
+            m_head = 0;
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+    
+    template < typename T > 
+    inline bool CircularList<T>::Delete()
+    {
+        if (m_size > 1)
+        {
+            CircularListElement<T> * next = m_head->GetNext();
+            CircularListElement<T> * prev = m_head->GetPrev();
+            delete m_head;
+            m_size--;
+            m_head = next;
+            next->GetPrev() = prev;
+            prev->GetNext() = next;
+            return true;
+        }
+        else if (m_size == 1)
+        {
+            delete m_head;
+            m_size--;
+            m_head = 0;
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+    template < typename T > 
+    inline CircularListElement<T> * CircularList<T>::Add(const T * data)
+    {
+        if (m_size == 0)
+        {
+            if (data)
+            {
+                m_head = new CircularListElement<T>(*data);
+            }
+            else
+            {
+                m_head = new CircularListElement<T>();
+            }
+            m_head->GetNext() = m_head->GetPrev() = m_head;
+        }
+        else
+        {
+            CircularListElement<T> * next = m_head->GetNext();
+            CircularListElement<T> * element = m_head;
+            if (data)
+            {
+                m_head = new CircularListElement<T>(*data);
+            }
+            else
+            {
+                m_head = new CircularListElement<T>();
+            }
+            m_head->GetNext() = next;
+            m_head->GetPrev() = element;
+            element->GetNext() = m_head;
+            next->GetPrev() = m_head;
+        }
+        m_size++;
+        return m_head;
+    }
+    template < typename T > 
+    inline CircularListElement<T> * CircularList<T>::Add(const T & data)
+    {
+        const T * pData = &data;
+        return Add(pData);
+    }
+    template < typename T > 
+    inline bool CircularList<T>::Next()
+    {
+        if (m_size == 0)
+        {
+            return false;
+        }
+        m_head = m_head->GetNext();
+        return true;
+    }
+    template < typename T > 
+    inline bool CircularList<T>::Prev()
+    {
+        if (m_size == 0)
+        {
+            return false;
+        }
+        m_head = m_head->GetPrev();
+        return true;
+    }
+    template < typename T > 
+    inline CircularList<T>::CircularList(const CircularList& rhs)
+    {
+        if (rhs.m_size > 0)
+        {
+            CircularListElement<T> * current = rhs.m_head;
+            do
+            {
+                current = current->GetNext();
+                Add(current->GetData());
+            }
+            while ( current != rhs.m_head );
+        }
+    }
+    template < typename T > 
+    inline const CircularList<T>& CircularList<T>::operator=(const CircularList& rhs)
+    {
+        if (&rhs != this)
+        {
+            Clear();
+            if (rhs.m_size > 0)
+            {
+                CircularListElement<T> * current = rhs.m_head;
+                do
+                {
+                    current = current->GetNext();
+                    Add(current->GetData());
+                }
+                while ( current != rhs.m_head );
+            }
+        }
+        return (*this);
+    }
+}
+#endif
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdICHull.h b/thirdparty/vhacd/inc/vhacdICHull.h
new file mode 100644
index 0000000000..132bdcfb3e
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdICHull.h
@@ -0,0 +1,98 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_ICHULL_H
+#define VHACD_ICHULL_H
+#include "vhacdManifoldMesh.h"
+#include "vhacdVector.h"
+
+namespace VHACD {
+//!    Incremental Convex Hull algorithm (cf. http://cs.smith.edu/~orourke/books/ftp.html ).
+enum ICHullError {
+    ICHullErrorOK = 0,
+    ICHullErrorCoplanarPoints,
+    ICHullErrorNoVolume,
+    ICHullErrorInconsistent,
+    ICHullErrorNotEnoughPoints
+};
+class ICHull {
+public:
+    static const double sc_eps;
+    //!
+    bool IsFlat() { return m_isFlat; }
+    //! Returns the computed mesh
+    TMMesh& GetMesh() { return m_mesh; }
+    //!    Add one point to the convex-hull
+    bool AddPoint(const Vec3<double>& point) { return AddPoints(&point, 1); }
+    //!    Add one point to the convex-hull
+    bool AddPoint(const Vec3<double>& point, int32_t id);
+    //!    Add points to the convex-hull
+    bool AddPoints(const Vec3<double>* points, size_t nPoints);
+    //!
+    ICHullError Process();
+    //!
+    ICHullError Process(const uint32_t nPointsCH, const double minVolume = 0.0);
+    //!
+    bool IsInside(const Vec3<double>& pt0, const double eps = 0.0);
+    //!
+    const ICHull& operator=(ICHull& rhs);
+
+    //!    Constructor
+    ICHull();
+    //! Destructor
+    ~ICHull(void){};
+
+private:
+    //!    DoubleTriangle builds the initial double triangle.  It first finds 3 noncollinear points and makes two faces out of them, in opposite order. It then finds a fourth point that is not coplanar with that face.  The vertices are stored in the face structure in counterclockwise order so that the volume between the face and the point is negative. Lastly, the 3 newfaces to the fourth point are constructed and the data structures are cleaned up.
+    ICHullError DoubleTriangle();
+    //!    MakeFace creates a new face structure from three vertices (in ccw order).  It returns a pointer to the face.
+    CircularListElement<TMMTriangle>* MakeFace(CircularListElement<TMMVertex>* v0,
+        CircularListElement<TMMVertex>* v1,
+        CircularListElement<TMMVertex>* v2,
+        CircularListElement<TMMTriangle>* fold);
+    //!
+    CircularListElement<TMMTriangle>* MakeConeFace(CircularListElement<TMMEdge>* e, CircularListElement<TMMVertex>* v);
+    //!
+    bool ProcessPoint();
+    //!
+    bool ComputePointVolume(double& totalVolume, bool markVisibleFaces);
+    //!
+    bool FindMaxVolumePoint(const double minVolume = 0.0);
+    //!
+    bool CleanEdges();
+    //!
+    bool CleanVertices(uint32_t& addedPoints);
+    //!
+    bool CleanTriangles();
+    //!
+    bool CleanUp(uint32_t& addedPoints);
+    //!
+    bool MakeCCW(CircularListElement<TMMTriangle>* f,
+        CircularListElement<TMMEdge>* e,
+        CircularListElement<TMMVertex>* v);
+    void Clear();
+
+private:
+    static const int32_t sc_dummyIndex;
+    TMMesh m_mesh;
+    SArray<CircularListElement<TMMEdge>*> m_edgesToDelete;
+    SArray<CircularListElement<TMMEdge>*> m_edgesToUpdate;
+    SArray<CircularListElement<TMMTriangle>*> m_trianglesToDelete;
+    Vec3<double> m_normal;
+    bool m_isFlat;
+    ICHull(const ICHull& rhs);
+};
+}
+#endif // VHACD_ICHULL_H
diff --git a/thirdparty/vhacd/inc/vhacdManifoldMesh.h b/thirdparty/vhacd/inc/vhacdManifoldMesh.h
new file mode 100644
index 0000000000..a48f53c5c5
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdManifoldMesh.h
@@ -0,0 +1,142 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+All rights reserved.
+
+
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#pragma once
+#ifndef VHACD_MANIFOLD_MESH_H
+#define VHACD_MANIFOLD_MESH_H
+#include "vhacdCircularList.h"
+#include "vhacdSArray.h"
+#include "vhacdVector.h"
+namespace VHACD {
+class TMMTriangle;
+class TMMEdge;
+class TMMesh;
+class ICHull;
+
+//!    Vertex data structure used in a triangular manifold mesh (TMM).
+class TMMVertex {
+public:
+    void Initialize();
+    TMMVertex(void);
+    ~TMMVertex(void);
+
+private:
+    Vec3<double> m_pos;
+    int32_t m_name;
+    size_t m_id;
+    CircularListElement<TMMEdge>* m_duplicate; // pointer to incident cone edge (or NULL)
+    bool m_onHull;
+    bool m_tag;
+    TMMVertex(const TMMVertex& rhs);
+    friend class ICHull;
+    friend class TMMesh;
+    friend class TMMTriangle;
+    friend class TMMEdge;
+};
+
+//!    Edge data structure used in a triangular manifold mesh (TMM).
+class TMMEdge {
+public:
+    void Initialize();
+    TMMEdge(void);
+    ~TMMEdge(void);
+
+private:
+    size_t m_id;
+    CircularListElement<TMMTriangle>* m_triangles[2];
+    CircularListElement<TMMVertex>* m_vertices[2];
+    CircularListElement<TMMTriangle>* m_newFace;
+    TMMEdge(const TMMEdge& rhs);
+    friend class ICHull;
+    friend class TMMTriangle;
+    friend class TMMVertex;
+    friend class TMMesh;
+};
+
+//!    Triangle data structure used in a triangular manifold mesh (TMM).
+class TMMTriangle {
+public:
+    void Initialize();
+    TMMTriangle(void);
+    ~TMMTriangle(void);
+
+private:
+    size_t m_id;
+    CircularListElement<TMMEdge>* m_edges[3];
+    CircularListElement<TMMVertex>* m_vertices[3];
+    bool m_visible;
+
+    TMMTriangle(const TMMTriangle& rhs);
+    friend class ICHull;
+    friend class TMMesh;
+    friend class TMMVertex;
+    friend class TMMEdge;
+};
+//!    triangular manifold mesh data structure.
+class TMMesh {
+public:
+    //! Returns the number of vertices>
+    inline size_t GetNVertices() const { return m_vertices.GetSize(); }
+    //! Returns the number of edges
+    inline size_t GetNEdges() const { return m_edges.GetSize(); }
+    //! Returns the number of triangles
+    inline size_t GetNTriangles() const { return m_triangles.GetSize(); }
+    //! Returns the vertices circular list
+    inline const CircularList<TMMVertex>& GetVertices() const { return m_vertices; }
+    //! Returns the edges circular list
+    inline const CircularList<TMMEdge>& GetEdges() const { return m_edges; }
+    //! Returns the triangles circular list
+    inline const CircularList<TMMTriangle>& GetTriangles() const { return m_triangles; }
+    //! Returns the vertices circular list
+    inline CircularList<TMMVertex>& GetVertices() { return m_vertices; }
+    //! Returns the edges circular list
+    inline CircularList<TMMEdge>& GetEdges() { return m_edges; }
+    //! Returns the triangles circular list
+    inline CircularList<TMMTriangle>& GetTriangles() { return m_triangles; }
+    //! Add vertex to the mesh
+    CircularListElement<TMMVertex>* AddVertex() { return m_vertices.Add(); }
+    //! Add vertex to the mesh
+    CircularListElement<TMMEdge>* AddEdge() { return m_edges.Add(); }
+    //! Add vertex to the mesh
+    CircularListElement<TMMTriangle>* AddTriangle() { return m_triangles.Add(); }
+    //! Print mesh information
+    void Print();
+    //!
+    void GetIFS(Vec3<double>* const points, Vec3<int32_t>* const triangles);
+    //!
+    void Clear();
+    //!
+    void Copy(TMMesh& mesh);
+    //!
+    bool CheckConsistancy();
+    //!
+    bool Normalize();
+    //!
+    bool Denormalize();
+    //!    Constructor
+    TMMesh();
+    //! Destructor
+    virtual ~TMMesh(void);
+
+private:
+    CircularList<TMMVertex> m_vertices;
+    CircularList<TMMEdge> m_edges;
+    CircularList<TMMTriangle> m_triangles;
+
+    // not defined
+    TMMesh(const TMMesh& rhs);
+    friend class ICHull;
+};
+}
+#endif // VHACD_MANIFOLD_MESH_H
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdMesh.h b/thirdparty/vhacd/inc/vhacdMesh.h
new file mode 100644
index 0000000000..a282e2b4fb
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdMesh.h
@@ -0,0 +1,130 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_MESH_H
+#define VHACD_MESH_H
+#include "vhacdSArray.h"
+#include "vhacdVector.h"
+
+#define VHACD_DEBUG_MESH
+
+namespace VHACD {
+enum AXIS {
+    AXIS_X = 0,
+    AXIS_Y = 1,
+    AXIS_Z = 2
+};
+struct Plane {
+    double m_a;
+    double m_b;
+    double m_c;
+    double m_d;
+    AXIS m_axis;
+    short m_index;
+};
+#ifdef VHACD_DEBUG_MESH
+struct Material {
+
+    Vec3<double> m_diffuseColor;
+    double m_ambientIntensity;
+    Vec3<double> m_specularColor;
+    Vec3<double> m_emissiveColor;
+    double m_shininess;
+    double m_transparency;
+    Material(void)
+    {
+        m_diffuseColor.X() = 0.5;
+        m_diffuseColor.Y() = 0.5;
+        m_diffuseColor.Z() = 0.5;
+        m_specularColor.X() = 0.5;
+        m_specularColor.Y() = 0.5;
+        m_specularColor.Z() = 0.5;
+        m_ambientIntensity = 0.4;
+        m_emissiveColor.X() = 0.0;
+        m_emissiveColor.Y() = 0.0;
+        m_emissiveColor.Z() = 0.0;
+        m_shininess = 0.4;
+        m_transparency = 0.0;
+    };
+};
+#endif // VHACD_DEBUG_MESH
+
+//! Triangular mesh data structure
+class Mesh {
+public:
+    void AddPoint(const Vec3<double>& pt) { m_points.PushBack(pt); };
+    void SetPoint(size_t index, const Vec3<double>& pt) { m_points[index] = pt; };
+    const Vec3<double>& GetPoint(size_t index) const { return m_points[index]; };
+    Vec3<double>& GetPoint(size_t index) { return m_points[index]; };
+    size_t GetNPoints() const { return m_points.Size(); };
+    double* GetPoints() { return (double*)m_points.Data(); } // ugly
+    const double* const GetPoints() const { return (double*)m_points.Data(); } // ugly
+    const Vec3<double>* const GetPointsBuffer() const { return m_points.Data(); } //
+    Vec3<double>* const GetPointsBuffer() { return m_points.Data(); } //
+    void AddTriangle(const Vec3<int32_t>& tri) { m_triangles.PushBack(tri); };
+    void SetTriangle(size_t index, const Vec3<int32_t>& tri) { m_triangles[index] = tri; };
+    const Vec3<int32_t>& GetTriangle(size_t index) const { return m_triangles[index]; };
+    Vec3<int32_t>& GetTriangle(size_t index) { return m_triangles[index]; };
+    size_t GetNTriangles() const { return m_triangles.Size(); };
+    int32_t* GetTriangles() { return (int32_t*)m_triangles.Data(); } // ugly
+    const int32_t* const GetTriangles() const { return (int32_t*)m_triangles.Data(); } // ugly
+    const Vec3<int32_t>* const GetTrianglesBuffer() const { return m_triangles.Data(); }
+    Vec3<int32_t>* const GetTrianglesBuffer() { return m_triangles.Data(); }
+    const Vec3<double>& GetCenter() const { return m_center; }
+    const Vec3<double>& GetMinBB() const { return m_minBB; }
+    const Vec3<double>& GetMaxBB() const { return m_maxBB; }
+    void ClearPoints() { m_points.Clear(); }
+    void ClearTriangles() { m_triangles.Clear(); }
+    void Clear()
+    {
+        ClearPoints();
+        ClearTriangles();
+    }
+    void ResizePoints(size_t nPts) { m_points.Resize(nPts); }
+    void ResizeTriangles(size_t nTri) { m_triangles.Resize(nTri); }
+    void CopyPoints(SArray<Vec3<double> >& points) const { points = m_points; }
+    double GetDiagBB() const { return m_diag; }
+    double ComputeVolume() const;
+    void ComputeConvexHull(const double* const pts,
+        const size_t nPts);
+    void Clip(const Plane& plane,
+        SArray<Vec3<double> >& positivePart,
+        SArray<Vec3<double> >& negativePart) const;
+    bool IsInside(const Vec3<double>& pt) const;
+    double ComputeDiagBB();
+	Vec3<double> &ComputeCenter(void);
+
+#ifdef VHACD_DEBUG_MESH
+    bool LoadOFF(const std::string& fileName, bool invert);
+    bool SaveVRML2(const std::string& fileName) const;
+    bool SaveVRML2(std::ofstream& fout, const Material& material) const;
+    bool SaveOFF(const std::string& fileName) const;
+#endif // VHACD_DEBUG_MESH
+
+    //! Constructor.
+    Mesh();
+    //! Destructor.
+    ~Mesh(void);
+
+private:
+    SArray<Vec3<double> > m_points;
+    SArray<Vec3<int32_t> > m_triangles;
+    Vec3<double> m_minBB;
+    Vec3<double> m_maxBB;
+    Vec3<double> m_center;
+    double m_diag;
+};
+}
+#endif
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdMutex.h b/thirdparty/vhacd/inc/vhacdMutex.h
new file mode 100644
index 0000000000..6b09259200
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdMutex.h
@@ -0,0 +1,148 @@
+/*!
+**
+** Copyright (c) 2009 by John W. Ratcliff mailto:jratcliffscarab@gmail.com
+**
+** Portions of this source has been released with the PhysXViewer application, as well as
+** Rocket, CreateDynamics, ODF, and as a number of sample code snippets.
+**
+** If you find this code useful or you are feeling particularily generous I would
+** ask that you please go to http://www.amillionpixels.us and make a donation
+** to Troy DeMolay.
+**
+** DeMolay is a youth group for young men between the ages of 12 and 21.
+** It teaches strong moral principles, as well as leadership skills and
+** public speaking.  The donations page uses the 'pay for pixels' paradigm
+** where, in this case, a pixel is only a single penny.  Donations can be
+** made for as small as $4 or as high as a $100 block.  Each person who donates
+** will get a link to their own site as well as acknowledgement on the
+** donations blog located here http://www.amillionpixels.blogspot.com/
+**
+** If you wish to contact me you can use the following methods:
+**
+** Skype ID: jratcliff63367
+** Yahoo: jratcliff63367
+** AOL: jratcliff1961
+** email: jratcliffscarab@gmail.com
+**
+**
+** The MIT license:
+**
+** Permission is hereby granted, free of charge, to any person obtaining a copy
+** of this software and associated documentation files (the "Software"), to deal
+** in the Software without restriction, including without limitation the rights
+** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+** copies of the Software, and to permit persons to whom the Software is furnished
+** to do so, subject to the following conditions:
+**
+** The above copyright notice and this permission notice shall be included in all
+** copies or substantial portions of the Software.
+
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+** WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+** CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#pragma once
+#ifndef VHACD_MUTEX_H
+#define VHACD_MUTEX_H
+
+#if defined(WIN32)
+
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x400
+#endif
+#include <windows.h>
+#pragma comment(lib, "winmm.lib")
+#endif
+
+#if defined(__linux__)
+//#include <sys/time.h>
+#include <errno.h>
+#include <time.h>
+#include <unistd.h>
+#define __stdcall
+#endif
+
+#if defined(__APPLE__) || defined(__linux__)
+#include <pthread.h>
+#endif
+
+#if defined(__APPLE__)
+#define PTHREAD_MUTEX_RECURSIVE_NP PTHREAD_MUTEX_RECURSIVE
+#endif
+
+#define VHACD_DEBUG
+
+//#define VHACD_NDEBUG
+#ifdef VHACD_NDEBUG
+#define VHACD_VERIFY(x) (x)
+#else
+#define VHACD_VERIFY(x) assert((x))
+#endif
+
+namespace VHACD {
+class Mutex {
+public:
+    Mutex(void)
+    {
+#if defined(WIN32) || defined(_XBOX)
+        InitializeCriticalSection(&m_mutex);
+#elif defined(__APPLE__) || defined(__linux__)
+        pthread_mutexattr_t mutexAttr; // Mutex Attribute
+        VHACD_VERIFY(pthread_mutexattr_init(&mutexAttr) == 0);
+        VHACD_VERIFY(pthread_mutexattr_settype(&mutexAttr, PTHREAD_MUTEX_RECURSIVE_NP) == 0);
+        VHACD_VERIFY(pthread_mutex_init(&m_mutex, &mutexAttr) == 0);
+        VHACD_VERIFY(pthread_mutexattr_destroy(&mutexAttr) == 0);
+#endif
+    }
+    ~Mutex(void)
+    {
+#if defined(WIN32) || defined(_XBOX)
+        DeleteCriticalSection(&m_mutex);
+#elif defined(__APPLE__) || defined(__linux__)
+        VHACD_VERIFY(pthread_mutex_destroy(&m_mutex) == 0);
+#endif
+    }
+    void Lock(void)
+    {
+#if defined(WIN32) || defined(_XBOX)
+        EnterCriticalSection(&m_mutex);
+#elif defined(__APPLE__) || defined(__linux__)
+        VHACD_VERIFY(pthread_mutex_lock(&m_mutex) == 0);
+#endif
+    }
+    bool TryLock(void)
+    {
+#if defined(WIN32) || defined(_XBOX)
+        bool bRet = false;
+        //assert(("TryEnterCriticalSection seems to not work on XP???", 0));
+        bRet = TryEnterCriticalSection(&m_mutex) ? true : false;
+        return bRet;
+#elif defined(__APPLE__) || defined(__linux__)
+        int32_t result = pthread_mutex_trylock(&m_mutex);
+        return (result == 0);
+#endif
+    }
+
+    void Unlock(void)
+    {
+#if defined(WIN32) || defined(_XBOX)
+        LeaveCriticalSection(&m_mutex);
+#elif defined(__APPLE__) || defined(__linux__)
+        VHACD_VERIFY(pthread_mutex_unlock(&m_mutex) == 0);
+#endif
+    }
+
+private:
+#if defined(WIN32) || defined(_XBOX)
+    CRITICAL_SECTION m_mutex;
+#elif defined(__APPLE__) || defined(__linux__)
+    pthread_mutex_t m_mutex;
+#endif
+};
+}
+#endif // VHACD_MUTEX_H
diff --git a/thirdparty/vhacd/inc/vhacdRaycastMesh.h b/thirdparty/vhacd/inc/vhacdRaycastMesh.h
new file mode 100644
index 0000000000..93bf299c07
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdRaycastMesh.h
@@ -0,0 +1,39 @@
+#ifndef RAYCAST_MESH_H
+
+#define RAYCAST_MESH_H
+
+#include <stdint.h>
+
+namespace VHACD
+{
+
+    // Very simple brute force raycast against a triangle mesh.  Tests every triangle; no hierachy.
+    // Does a deep copy, always does calculations with full double float precision
+    class RaycastMesh
+    {
+    public:
+        static RaycastMesh * createRaycastMesh(uint32_t vcount,		// The number of vertices in the source triangle mesh
+            const double *vertices,		// The array of vertex positions in the format x1,y1,z1..x2,y2,z2.. etc.
+            uint32_t tcount,		// The number of triangles in the source triangle mesh
+            const uint32_t *indices); // The triangle indices in the format of i1,i2,i3 ... i4,i5,i6, ...
+
+        static RaycastMesh * createRaycastMesh(uint32_t vcount,		// The number of vertices in the source triangle mesh
+            const float *vertices,		// The array of vertex positions in the format x1,y1,z1..x2,y2,z2.. etc.
+            uint32_t tcount,		// The number of triangles in the source triangle mesh
+            const uint32_t *indices); // The triangle indices in the format of i1,i2,i3 ... i4,i5,i6, ...
+
+
+        virtual bool raycast(const double *from,			// The starting point of the raycast
+            const double *to,				// The ending point of the raycast
+            const double *closestToPoint,	// The point to match the nearest hit location (can just be the 'from' location of no specific point)
+            double *hitLocation,			// The point where the ray hit nearest to the 'closestToPoint' location
+            double *hitDistance) = 0;		// The distance the ray traveled to the hit location
+
+        virtual void release(void) = 0;
+    protected:
+        virtual ~RaycastMesh(void) { };
+    };
+
+} // end of VHACD namespace
+
+#endif
diff --git a/thirdparty/vhacd/inc/vhacdSArray.h b/thirdparty/vhacd/inc/vhacdSArray.h
new file mode 100644
index 0000000000..4d84d1ae26
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdSArray.h
@@ -0,0 +1,158 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_SARRAY_H
+#define VHACD_SARRAY_H
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define SARRAY_DEFAULT_MIN_SIZE 16
+
+namespace VHACD {
+//!    SArray.
+template <typename T, size_t N = 64>
+class SArray {
+public:
+    T& operator[](size_t i)
+    {
+        T* const data = Data();
+        return data[i];
+    }
+    const T& operator[](size_t i) const
+    {
+        const T* const data = Data();
+        return data[i];
+    }
+    size_t Size() const
+    {
+        return m_size;
+    }
+    T* const Data()
+    {
+        return (m_maxSize == N) ? m_data0 : m_data;
+    }
+    const T* const Data() const
+    {
+        return (m_maxSize == N) ? m_data0 : m_data;
+    }
+    void Clear()
+    {
+        m_size = 0;
+        delete[] m_data;
+        m_data = 0;
+        m_maxSize = N;
+    }
+    void PopBack()
+    {
+        --m_size;
+    }
+    void Allocate(size_t size)
+    {
+        if (size > m_maxSize) {
+            T* temp = new T[size];
+            memcpy(temp, Data(), m_size * sizeof(T));
+            delete[] m_data;
+            m_data = temp;
+            m_maxSize = size;
+        }
+    }
+    void Resize(size_t size)
+    {
+        Allocate(size);
+        m_size = size;
+    }
+
+    void PushBack(const T& value)
+    {
+        if (m_size == m_maxSize) {
+            size_t maxSize = (m_maxSize << 1);
+            T* temp = new T[maxSize];
+            memcpy(temp, Data(), m_maxSize * sizeof(T));
+            delete[] m_data;
+            m_data = temp;
+            m_maxSize = maxSize;
+        }
+        T* const data = Data();
+        data[m_size++] = value;
+    }
+    bool Find(const T& value, size_t& pos)
+    {
+        T* const data = Data();
+        for (pos = 0; pos < m_size; ++pos)
+            if (value == data[pos])
+                return true;
+        return false;
+    }
+    bool Insert(const T& value)
+    {
+        size_t pos;
+        if (Find(value, pos))
+            return false;
+        PushBack(value);
+        return true;
+    }
+    bool Erase(const T& value)
+    {
+        size_t pos;
+        T* const data = Data();
+        if (Find(value, pos)) {
+            for (size_t j = pos + 1; j < m_size; ++j)
+                data[j - 1] = data[j];
+            --m_size;
+            return true;
+        }
+        return false;
+    }
+    void operator=(const SArray& rhs)
+    {
+        if (m_maxSize < rhs.m_size) {
+            delete[] m_data;
+            m_maxSize = rhs.m_maxSize;
+            m_data = new T[m_maxSize];
+        }
+        m_size = rhs.m_size;
+        memcpy(Data(), rhs.Data(), m_size * sizeof(T));
+    }
+    void Initialize()
+    {
+        m_data = 0;
+        m_size = 0;
+        m_maxSize = N;
+    }
+    SArray(const SArray& rhs)
+    {
+        m_data = 0;
+        m_size = 0;
+        m_maxSize = N;
+        *this = rhs;
+    }
+    SArray()
+    {
+        Initialize();
+    }
+    ~SArray()
+    {
+        delete[] m_data;
+    }
+
+private:
+    T m_data0[N];
+    T* m_data;
+    size_t m_size;
+    size_t m_maxSize;
+};
+}
+#endif
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdTimer.h b/thirdparty/vhacd/inc/vhacdTimer.h
new file mode 100644
index 0000000000..ba0e2c3364
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdTimer.h
@@ -0,0 +1,121 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_TIMER_H
+#define VHACD_TIMER_H
+
+#ifdef _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
+#endif
+#include <windows.h>
+#elif __MACH__
+#include <mach/clock.h>
+#include <mach/mach.h>
+#else
+#include <sys/time.h>
+#include <time.h>
+#endif
+
+namespace VHACD {
+#ifdef _WIN32
+class Timer {
+public:
+    Timer(void)
+    {
+        m_start.QuadPart = 0;
+        m_stop.QuadPart = 0;
+        QueryPerformanceFrequency(&m_freq);
+    };
+    ~Timer(void){};
+    void Tic()
+    {
+        QueryPerformanceCounter(&m_start);
+    }
+    void Toc()
+    {
+        QueryPerformanceCounter(&m_stop);
+    }
+    double GetElapsedTime() // in ms
+    {
+        LARGE_INTEGER delta;
+        delta.QuadPart = m_stop.QuadPart - m_start.QuadPart;
+        return (1000.0 * delta.QuadPart) / (double)m_freq.QuadPart;
+    }
+
+private:
+    LARGE_INTEGER m_start;
+    LARGE_INTEGER m_stop;
+    LARGE_INTEGER m_freq;
+};
+
+#elif __MACH__
+class Timer {
+public:
+    Timer(void)
+    {
+        memset(this, 0, sizeof(Timer));
+        host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &m_cclock);
+    };
+    ~Timer(void)
+    {
+        mach_port_deallocate(mach_task_self(), m_cclock);
+    };
+    void Tic()
+    {
+        clock_get_time(m_cclock, &m_start);
+    }
+    void Toc()
+    {
+        clock_get_time(m_cclock, &m_stop);
+    }
+    double GetElapsedTime() // in ms
+    {
+        return 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec));
+    }
+
+private:
+    clock_serv_t m_cclock;
+    mach_timespec_t m_start;
+    mach_timespec_t m_stop;
+};
+#else
+class Timer {
+public:
+    Timer(void)
+    {
+        memset(this, 0, sizeof(Timer));
+    };
+    ~Timer(void){};
+    void Tic()
+    {
+        clock_gettime(CLOCK_REALTIME, &m_start);
+    }
+    void Toc()
+    {
+        clock_gettime(CLOCK_REALTIME, &m_stop);
+    }
+    double GetElapsedTime() // in ms
+    {
+        return 1000.0 * (m_stop.tv_sec - m_start.tv_sec + (1.0E-9) * (m_stop.tv_nsec - m_start.tv_nsec));
+    }
+
+private:
+    struct timespec m_start;
+    struct timespec m_stop;
+};
+#endif
+}
+#endif // VHACD_TIMER_H
diff --git a/thirdparty/vhacd/inc/vhacdVHACD.h b/thirdparty/vhacd/inc/vhacdVHACD.h
new file mode 100644
index 0000000000..d67b107642
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdVHACD.h
@@ -0,0 +1,371 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+All rights reserved.
+
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#pragma once
+#ifndef VHACD_VHACD_H
+#define VHACD_VHACD_H
+
+#ifdef OPENCL_FOUND
+#ifdef __MACH__
+#include <OpenCL/cl.h>
+#else
+#include <CL/cl.h>
+#endif
+#endif //OPENCL_FOUND
+
+#include "vhacdMutex.h"
+#include "vhacdVolume.h"
+#include "vhacdRaycastMesh.h"
+#include <vector>
+
+#define USE_THREAD 1
+#define OCL_MIN_NUM_PRIMITIVES 4096
+#define CH_APP_MIN_NUM_PRIMITIVES 64000
+namespace VHACD {
+class VHACD : public IVHACD {
+public:
+    //! Constructor.
+    VHACD()
+    {
+#if USE_THREAD == 1 && _OPENMP
+        m_ompNumProcessors = 2 * omp_get_num_procs();
+        omp_set_num_threads(m_ompNumProcessors);
+#else //USE_THREAD == 1 && _OPENMP
+        m_ompNumProcessors = 1;
+#endif //USE_THREAD == 1 && _OPENMP
+#ifdef CL_VERSION_1_1
+        m_oclWorkGroupSize = 0;
+        m_oclDevice = 0;
+        m_oclQueue = 0;
+        m_oclKernelComputePartialVolumes = 0;
+        m_oclKernelComputeSum = 0;
+#endif //CL_VERSION_1_1
+        Init();
+    }
+    //! Destructor.
+    ~VHACD(void) 
+    {
+    }
+    uint32_t GetNConvexHulls() const
+    {
+        return (uint32_t)m_convexHulls.Size();
+    }
+    void Cancel()
+    {
+        SetCancel(true);
+    }
+    void GetConvexHull(const uint32_t index, ConvexHull& ch) const
+    {
+        Mesh* mesh = m_convexHulls[index];
+        ch.m_nPoints = (uint32_t)mesh->GetNPoints();
+        ch.m_nTriangles = (uint32_t)mesh->GetNTriangles();
+        ch.m_points = mesh->GetPoints();
+        ch.m_triangles = (uint32_t *)mesh->GetTriangles();
+		ch.m_volume = mesh->ComputeVolume();
+		Vec3<double> &center = mesh->ComputeCenter();
+		ch.m_center[0] = center.X();
+		ch.m_center[1] = center.Y();
+		ch.m_center[2] = center.Z();
+    }
+    void Clean(void)
+    {
+        if (mRaycastMesh)
+        {
+            mRaycastMesh->release();
+            mRaycastMesh = nullptr;
+        }
+        delete m_volume;
+        delete m_pset;
+        size_t nCH = m_convexHulls.Size();
+        for (size_t p = 0; p < nCH; ++p) {
+            delete m_convexHulls[p];
+        }
+        m_convexHulls.Clear();
+        Init();
+    }
+    void Release(void)
+    {
+        delete this;
+    }
+    bool Compute(const float* const points,
+        const uint32_t nPoints,
+        const uint32_t* const triangles,
+        const uint32_t nTriangles,
+        const Parameters& params);
+    bool Compute(const double* const points,
+        const uint32_t nPoints,
+        const uint32_t* const triangles,
+        const uint32_t nTriangles,
+        const Parameters& params);
+    bool OCLInit(void* const oclDevice,
+        IUserLogger* const logger = 0);
+    bool OCLRelease(IUserLogger* const logger = 0);
+
+	virtual bool ComputeCenterOfMass(double centerOfMass[3]) const;
+
+private:
+    void SetCancel(bool cancel)
+    {
+        m_cancelMutex.Lock();
+        m_cancel = cancel;
+        m_cancelMutex.Unlock();
+    }
+    bool GetCancel()
+    {
+
+        m_cancelMutex.Lock();
+        bool cancel = m_cancel;
+        m_cancelMutex.Unlock();
+        return cancel;
+    }
+    void Update(const double stageProgress,
+        const double operationProgress,
+        const Parameters& params)
+    {
+        m_stageProgress = stageProgress;
+        m_operationProgress = operationProgress;
+        if (params.m_callback) {
+            params.m_callback->Update(m_overallProgress,
+                m_stageProgress,
+                m_operationProgress,
+                m_stage.c_str(),
+                m_operation.c_str());
+        }
+    }
+    void Init()
+    {
+		if (mRaycastMesh)
+		{
+			mRaycastMesh->release();
+			mRaycastMesh = nullptr;
+		}
+        memset(m_rot, 0, sizeof(double) * 9);
+        m_dim = 64;
+        m_volume = 0;
+        m_volumeCH0 = 0.0;
+        m_pset = 0;
+        m_overallProgress = 0.0;
+        m_stageProgress = 0.0;
+        m_operationProgress = 0.0;
+        m_stage = "";
+        m_operation = "";
+        m_barycenter[0] = m_barycenter[1] = m_barycenter[2] = 0.0;
+        m_rot[0][0] = m_rot[1][1] = m_rot[2][2] = 1.0;
+        SetCancel(false);
+    }
+    void ComputePrimitiveSet(const Parameters& params);
+    void ComputeACD(const Parameters& params);
+    void MergeConvexHulls(const Parameters& params);
+    void SimplifyConvexHull(Mesh* const ch, const size_t nvertices, const double minVolume);
+    void SimplifyConvexHulls(const Parameters& params);
+    void ComputeBestClippingPlane(const PrimitiveSet* inputPSet,
+        const double volume,
+        const SArray<Plane>& planes,
+        const Vec3<double>& preferredCuttingDirection,
+        const double w,
+        const double alpha,
+        const double beta,
+        const int32_t convexhullDownsampling,
+        const double progress0,
+        const double progress1,
+        Plane& bestPlane,
+        double& minConcavity,
+        const Parameters& params);
+    template <class T>
+    void AlignMesh(const T* const points,
+        const uint32_t stridePoints,
+        const uint32_t nPoints,
+        const int32_t* const triangles,
+        const uint32_t strideTriangles,
+        const uint32_t nTriangles,
+        const Parameters& params)
+    {
+        if (GetCancel() || !params.m_pca) {
+            return;
+        }
+        m_timer.Tic();
+
+        m_stage = "Align mesh";
+        m_operation = "Voxelization";
+
+        std::ostringstream msg;
+        if (params.m_logger) {
+            msg << "+ " << m_stage << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+
+        Update(0.0, 0.0, params);
+        if (GetCancel()) {
+            return;
+        }
+        m_dim = (size_t)(pow((double)params.m_resolution, 1.0 / 3.0) + 0.5);
+        Volume volume;
+        volume.Voxelize(points, stridePoints, nPoints,
+            triangles, strideTriangles, nTriangles,
+            m_dim, m_barycenter, m_rot);
+        size_t n = volume.GetNPrimitivesOnSurf() + volume.GetNPrimitivesInsideSurf();
+        Update(50.0, 100.0, params);
+
+        if (params.m_logger) {
+            msg.str("");
+            msg << "\t dim = " << m_dim << "\t-> " << n << " voxels" << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+        if (GetCancel()) {
+            return;
+        }
+        m_operation = "PCA";
+        Update(50.0, 0.0, params);
+        volume.AlignToPrincipalAxes(m_rot);
+        m_overallProgress = 1.0;
+        Update(100.0, 100.0, params);
+
+        m_timer.Toc();
+        if (params.m_logger) {
+            msg.str("");
+            msg << "\t time " << m_timer.GetElapsedTime() / 1000.0 << "s" << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+    }
+    template <class T>
+    void VoxelizeMesh(const T* const points,
+        const uint32_t stridePoints,
+        const uint32_t nPoints,
+        const int32_t* const triangles,
+        const uint32_t strideTriangles,
+        const uint32_t nTriangles,
+        const Parameters& params)
+    {
+        if (GetCancel()) {
+            return;
+        }
+
+        m_timer.Tic();
+        m_stage = "Voxelization";
+
+        std::ostringstream msg;
+        if (params.m_logger) {
+            msg << "+ " << m_stage << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+
+        delete m_volume;
+        m_volume = 0;
+        int32_t iteration = 0;
+        const int32_t maxIteration = 5;
+        double progress = 0.0;
+        while (iteration++ < maxIteration && !m_cancel) {
+            msg.str("");
+            msg << "Iteration " << iteration;
+            m_operation = msg.str();
+
+            progress = iteration * 100.0 / maxIteration;
+            Update(progress, 0.0, params);
+
+            m_volume = new Volume;
+            m_volume->Voxelize(points, stridePoints, nPoints,
+                triangles, strideTriangles, nTriangles,
+                m_dim, m_barycenter, m_rot);
+
+            Update(progress, 100.0, params);
+
+            size_t n = m_volume->GetNPrimitivesOnSurf() + m_volume->GetNPrimitivesInsideSurf();
+            if (params.m_logger) {
+                msg.str("");
+                msg << "\t dim = " << m_dim << "\t-> " << n << " voxels" << std::endl;
+                params.m_logger->Log(msg.str().c_str());
+            }
+
+            double a = pow((double)(params.m_resolution) / n, 0.33);
+            size_t dim_next = (size_t)(m_dim * a + 0.5);
+            if (n < params.m_resolution && iteration < maxIteration && m_volume->GetNPrimitivesOnSurf() < params.m_resolution / 8 && m_dim != dim_next) {
+                delete m_volume;
+                m_volume = 0;
+                m_dim = dim_next;
+            }
+            else {
+                break;
+            }
+        }
+        m_overallProgress = 10.0;
+        Update(100.0, 100.0, params);
+
+        m_timer.Toc();
+        if (params.m_logger) {
+            msg.str("");
+            msg << "\t time " << m_timer.GetElapsedTime() / 1000.0 << "s" << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+    }
+    template <class T>
+    bool ComputeACD(const T* const points,
+        const uint32_t nPoints,
+        const uint32_t* const triangles,
+        const uint32_t nTriangles,
+        const Parameters& params)
+    {
+        Init();
+        if (params.m_projectHullVertices)
+        {
+            mRaycastMesh = RaycastMesh::createRaycastMesh(nPoints, points, nTriangles, (const uint32_t *)triangles);
+        }
+        if (params.m_oclAcceleration) {
+            // build kernels
+        }
+        AlignMesh(points, 3, nPoints, (int32_t *)triangles, 3, nTriangles, params);
+        VoxelizeMesh(points, 3, nPoints, (int32_t *)triangles, 3, nTriangles, params);
+        ComputePrimitiveSet(params);
+        ComputeACD(params);
+        MergeConvexHulls(params);
+        SimplifyConvexHulls(params);
+        if (params.m_oclAcceleration) {
+            // Release kernels
+        }
+        if (GetCancel()) {
+            Clean();
+            return false;
+        }
+        return true;
+    }
+
+private:
+	RaycastMesh		*mRaycastMesh{ nullptr };
+    SArray<Mesh*> m_convexHulls;
+    std::string m_stage;
+    std::string m_operation;
+    double m_overallProgress;
+    double m_stageProgress;
+    double m_operationProgress;
+    double m_rot[3][3];
+    double m_volumeCH0;
+    Vec3<double> m_barycenter;
+    Timer m_timer;
+    size_t m_dim;
+    Volume* m_volume;
+    PrimitiveSet* m_pset;
+    Mutex m_cancelMutex;
+    bool m_cancel;
+    int32_t m_ompNumProcessors;
+#ifdef CL_VERSION_1_1
+    cl_device_id* m_oclDevice;
+    cl_context m_oclContext;
+    cl_program m_oclProgram;
+    cl_command_queue* m_oclQueue;
+    cl_kernel* m_oclKernelComputePartialVolumes;
+    cl_kernel* m_oclKernelComputeSum;
+    size_t m_oclWorkGroupSize;
+#endif //CL_VERSION_1_1
+};
+}
+#endif // VHACD_VHACD_H
diff --git a/thirdparty/vhacd/inc/vhacdVector.h b/thirdparty/vhacd/inc/vhacdVector.h
new file mode 100644
index 0000000000..efcfcf6ad7
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdVector.h
@@ -0,0 +1,168 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_VECTOR_H
+#define VHACD_VECTOR_H
+#include <iostream>
+#include <math.h>
+
+namespace VHACD {
+//!    Vector dim 3.
+template <typename T>
+class Vec3 {
+public:
+    T& operator[](size_t i) { return m_data[i]; }
+    const T& operator[](size_t i) const { return m_data[i]; }
+    T& X();
+    T& Y();
+    T& Z();
+    const T& X() const;
+    const T& Y() const;
+    const T& Z() const;
+    void Normalize();
+    T GetNorm() const;
+    void operator=(const Vec3& rhs);
+    void operator+=(const Vec3& rhs);
+    void operator-=(const Vec3& rhs);
+    void operator-=(T a);
+    void operator+=(T a);
+    void operator/=(T a);
+    void operator*=(T a);
+    Vec3 operator^(const Vec3& rhs) const;
+    T operator*(const Vec3& rhs) const;
+    Vec3 operator+(const Vec3& rhs) const;
+    Vec3 operator-(const Vec3& rhs) const;
+    Vec3 operator-() const;
+    Vec3 operator*(T rhs) const;
+    Vec3 operator/(T rhs) const;
+    bool operator<(const Vec3& rhs) const;
+    bool operator>(const Vec3& rhs) const;
+    Vec3();
+    Vec3(T a);
+    Vec3(T x, T y, T z);
+    Vec3(const Vec3& rhs);
+    /*virtual*/ ~Vec3(void);
+
+    // Compute the center of this bounding box and return the diagonal length
+    T GetCenter(const Vec3 &bmin, const Vec3 &bmax)
+    {
+        X() = (bmin.X() + bmax.X())*0.5;
+        Y() = (bmin.Y() + bmax.Y())*0.5;
+        Z() = (bmin.Z() + bmax.Z())*0.5;
+        T dx = bmax.X() - bmin.X();
+        T dy = bmax.Y() - bmin.Y();
+        T dz = bmax.Z() - bmin.Z();
+        T diagonal = T(sqrt(dx*dx + dy*dy + dz*dz));
+        return diagonal;
+    }
+
+    // Update the min/max values relative to this point
+    void UpdateMinMax(Vec3 &bmin,Vec3 &bmax) const
+    {
+        if (X() < bmin.X())
+        {
+            bmin.X() = X();
+        }
+        if (Y() < bmin.Y())
+        {
+            bmin.Y() = Y();
+        }
+        if (Z() < bmin.Z())
+        {
+            bmin.Z() = Z();
+        }
+        if (X() > bmax.X())
+        {
+            bmax.X() = X();
+        }
+        if (X() > bmax.X())
+        {
+            bmax.X() = X();
+        }
+        if (Y() > bmax.Y())
+        {
+            bmax.Y() = Y();
+        }
+        if (Z() > bmax.Z())
+        {
+            bmax.Z() = Z();
+        }
+    }
+
+    // Returns the squared distance between these two points
+    T GetDistanceSquared(const Vec3 &p) const
+    {
+        T dx = X() - p.X();
+        T dy = Y() - p.Y();
+        T dz = Z() - p.Z();
+        return dx*dx + dy*dy + dz*dz;
+    }
+
+    T GetDistance(const Vec3 &p) const
+    {
+        return sqrt(GetDistanceSquared(p));
+    }
+
+    // Returns the raw vector data as a pointer
+    T* GetData(void) 
+    {
+        return m_data;
+    }
+private:
+    T m_data[3];
+};
+//!    Vector dim 2.
+template <typename T>
+class Vec2 {
+public:
+    T& operator[](size_t i) { return m_data[i]; }
+    const T& operator[](size_t i) const { return m_data[i]; }
+    T& X();
+    T& Y();
+    const T& X() const;
+    const T& Y() const;
+    void Normalize();
+    T GetNorm() const;
+    void operator=(const Vec2& rhs);
+    void operator+=(const Vec2& rhs);
+    void operator-=(const Vec2& rhs);
+    void operator-=(T a);
+    void operator+=(T a);
+    void operator/=(T a);
+    void operator*=(T a);
+    T operator^(const Vec2& rhs) const;
+    T operator*(const Vec2& rhs) const;
+    Vec2 operator+(const Vec2& rhs) const;
+    Vec2 operator-(const Vec2& rhs) const;
+    Vec2 operator-() const;
+    Vec2 operator*(T rhs) const;
+    Vec2 operator/(T rhs) const;
+    Vec2();
+    Vec2(T a);
+    Vec2(T x, T y);
+    Vec2(const Vec2& rhs);
+    /*virtual*/ ~Vec2(void);
+
+private:
+    T m_data[2];
+};
+
+template <typename T>
+const bool Colinear(const Vec3<T>& a, const Vec3<T>& b, const Vec3<T>& c);
+template <typename T>
+const T ComputeVolume4(const Vec3<T>& a, const Vec3<T>& b, const Vec3<T>& c, const Vec3<T>& d);
+}
+#include "vhacdVector.inl" // template implementation
+#endif
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdVector.inl b/thirdparty/vhacd/inc/vhacdVector.inl
new file mode 100644
index 0000000000..223c2ef173
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdVector.inl
@@ -0,0 +1,362 @@
+#pragma once
+#ifndef VHACD_VECTOR_INL
+#define VHACD_VECTOR_INL
+namespace VHACD
+{
+    template <typename T> 
+    inline Vec3<T> operator*(T lhs, const Vec3<T> & rhs)
+    {
+        return Vec3<T>(lhs * rhs.X(), lhs * rhs.Y(), lhs * rhs.Z());
+    }
+    template <typename T> 
+    inline T & Vec3<T>::X() 
+    {
+        return m_data[0];
+    }
+    template <typename T> 
+    inline  T &    Vec3<T>::Y() 
+    {
+        return m_data[1];
+    }
+    template <typename T>    
+    inline  T &    Vec3<T>::Z() 
+    {
+        return m_data[2];
+    }
+    template <typename T> 
+    inline  const T & Vec3<T>::X() const 
+    {
+        return m_data[0];
+    }
+    template <typename T> 
+    inline  const T & Vec3<T>::Y() const 
+    {
+        return m_data[1];
+    }
+    template <typename T> 
+    inline  const T & Vec3<T>::Z() const 
+    {
+        return m_data[2];
+    }
+    template <typename T> 
+    inline  void Vec3<T>::Normalize()
+    {
+        T n = sqrt(m_data[0]*m_data[0]+m_data[1]*m_data[1]+m_data[2]*m_data[2]);
+        if (n != 0.0) (*this) /= n;
+    }
+    template <typename T> 
+    inline  T Vec3<T>::GetNorm() const 
+    { 
+        return sqrt(m_data[0]*m_data[0]+m_data[1]*m_data[1]+m_data[2]*m_data[2]);
+    }
+    template <typename T> 
+    inline  void Vec3<T>::operator= (const Vec3 & rhs)
+    { 
+        this->m_data[0] = rhs.m_data[0]; 
+        this->m_data[1] = rhs.m_data[1]; 
+        this->m_data[2] = rhs.m_data[2]; 
+    }
+    template <typename T> 
+    inline  void Vec3<T>::operator+=(const Vec3 & rhs)
+    { 
+        this->m_data[0] += rhs.m_data[0]; 
+        this->m_data[1] += rhs.m_data[1]; 
+        this->m_data[2] += rhs.m_data[2]; 
+    }     
+    template <typename T>  
+    inline void Vec3<T>::operator-=(const Vec3 & rhs)
+    { 
+        this->m_data[0] -= rhs.m_data[0]; 
+        this->m_data[1] -= rhs.m_data[1]; 
+        this->m_data[2] -= rhs.m_data[2]; 
+    }
+    template <typename T> 
+    inline void Vec3<T>::operator-=(T a)
+    { 
+        this->m_data[0] -= a; 
+        this->m_data[1] -= a; 
+        this->m_data[2] -= a; 
+    }
+    template <typename T> 
+    inline void Vec3<T>::operator+=(T a)
+    { 
+        this->m_data[0] += a; 
+        this->m_data[1] += a; 
+        this->m_data[2] += a; 
+    }
+    template <typename T> 
+    inline void Vec3<T>::operator/=(T a)
+    { 
+        this->m_data[0] /= a; 
+        this->m_data[1] /= a; 
+        this->m_data[2] /= a; 
+    }
+    template <typename T>  
+    inline void Vec3<T>::operator*=(T a)
+    { 
+        this->m_data[0] *= a; 
+        this->m_data[1] *= a; 
+        this->m_data[2] *= a; 
+    }  
+    template <typename T> 
+    inline Vec3<T> Vec3<T>::operator^ (const Vec3<T> & rhs) const
+    {
+        return Vec3<T>(m_data[1] * rhs.m_data[2] - m_data[2] * rhs.m_data[1],
+                       m_data[2] * rhs.m_data[0] - m_data[0] * rhs.m_data[2],
+                       m_data[0] * rhs.m_data[1] - m_data[1] * rhs.m_data[0]);
+    }
+    template <typename T>
+    inline T Vec3<T>::operator*(const Vec3<T> & rhs) const
+    {
+        return (m_data[0] * rhs.m_data[0] + m_data[1] * rhs.m_data[1] + m_data[2] * rhs.m_data[2]);
+    }        
+    template <typename T>
+    inline Vec3<T> Vec3<T>::operator+(const Vec3<T> & rhs) const
+    {
+        return Vec3<T>(m_data[0] + rhs.m_data[0],m_data[1] + rhs.m_data[1],m_data[2] + rhs.m_data[2]);
+    }
+    template <typename T> 
+    inline  Vec3<T> Vec3<T>::operator-(const Vec3<T> & rhs) const
+    {
+        return Vec3<T>(m_data[0] - rhs.m_data[0],m_data[1] - rhs.m_data[1],m_data[2] - rhs.m_data[2]) ;
+    }     
+    template <typename T> 
+    inline  Vec3<T> Vec3<T>::operator-() const
+    {
+        return Vec3<T>(-m_data[0],-m_data[1],-m_data[2]) ;
+    }     
+
+    template <typename T> 
+    inline Vec3<T> Vec3<T>::operator*(T rhs) const
+    {
+        return Vec3<T>(rhs * this->m_data[0], rhs * this->m_data[1], rhs * this->m_data[2]);
+    }
+    template <typename T>
+    inline Vec3<T> Vec3<T>::operator/ (T rhs) const
+    {
+        return Vec3<T>(m_data[0] / rhs, m_data[1] / rhs, m_data[2] / rhs);
+    }
+    template <typename T>
+    inline Vec3<T>::Vec3(T a) 
+    { 
+        m_data[0] = m_data[1] = m_data[2] = a; 
+    }
+    template <typename T>
+    inline Vec3<T>::Vec3(T x, T y, T z)
+    {
+        m_data[0] = x;
+        m_data[1] = y;
+        m_data[2] = z;
+    }
+    template <typename T>
+    inline Vec3<T>::Vec3(const Vec3 & rhs)
+    {        
+        m_data[0] = rhs.m_data[0];
+        m_data[1] = rhs.m_data[1];
+        m_data[2] = rhs.m_data[2];
+    }
+    template <typename T>
+    inline Vec3<T>::~Vec3(void){};
+
+    template <typename T>
+    inline Vec3<T>::Vec3() {}
+    
+    template<typename T>
+    inline const bool Colinear(const Vec3<T> & a, const Vec3<T> & b, const Vec3<T> & c)
+    {
+        return  ((c.Z() - a.Z()) * (b.Y() - a.Y()) - (b.Z() - a.Z()) * (c.Y() - a.Y()) == 0.0 /*EPS*/) &&
+                ((b.Z() - a.Z()) * (c.X() - a.X()) - (b.X() - a.X()) * (c.Z() - a.Z()) == 0.0 /*EPS*/) &&
+                ((b.X() - a.X()) * (c.Y() - a.Y()) - (b.Y() - a.Y()) * (c.X() - a.X()) == 0.0 /*EPS*/);
+    }
+    
+    template<typename T>
+    inline const T ComputeVolume4(const Vec3<T> & a, const Vec3<T> & b, const Vec3<T> & c, const Vec3<T> & d)
+    {
+        return (a-d) * ((b-d) ^ (c-d));
+    }
+
+    template <typename T> 
+    inline bool Vec3<T>::operator<(const Vec3 & rhs) const
+    {
+        if (X() == rhs[0])
+        {
+            if (Y() == rhs[1])
+            {
+                return (Z()<rhs[2]);
+            }
+            return (Y()<rhs[1]);
+        }
+        return (X()<rhs[0]);
+    }
+    template <typename T> 
+    inline  bool Vec3<T>::operator>(const Vec3 & rhs) const
+    {
+        if (X() == rhs[0])
+        {
+            if (Y() == rhs[1])
+            {
+                return (Z()>rhs[2]);
+            }
+            return (Y()>rhs[1]);
+        }
+        return (X()>rhs[0]);
+    } 
+    template <typename T> 
+    inline Vec2<T> operator*(T lhs, const Vec2<T> & rhs)
+    {
+        return Vec2<T>(lhs * rhs.X(), lhs * rhs.Y());
+    }
+    template <typename T> 
+    inline T & Vec2<T>::X() 
+    {
+        return m_data[0];
+    }
+    template <typename T>    
+    inline  T &    Vec2<T>::Y() 
+    {
+        return m_data[1];
+    }
+    template <typename T>    
+    inline  const T & Vec2<T>::X() const 
+    {
+        return m_data[0];
+    }
+    template <typename T>    
+    inline  const T & Vec2<T>::Y() const 
+    {
+        return m_data[1];
+    }
+    template <typename T>    
+    inline  void Vec2<T>::Normalize()
+    {
+        T n = sqrt(m_data[0]*m_data[0]+m_data[1]*m_data[1]);
+        if (n != 0.0) (*this) /= n;
+    }
+    template <typename T>    
+    inline  T Vec2<T>::GetNorm() const 
+    { 
+        return sqrt(m_data[0]*m_data[0]+m_data[1]*m_data[1]);
+    }
+    template <typename T>    
+    inline  void Vec2<T>::operator= (const Vec2 & rhs)
+    { 
+        this->m_data[0] = rhs.m_data[0]; 
+        this->m_data[1] = rhs.m_data[1]; 
+    }
+    template <typename T>    
+    inline  void Vec2<T>::operator+=(const Vec2 & rhs)
+    { 
+        this->m_data[0] += rhs.m_data[0]; 
+        this->m_data[1] += rhs.m_data[1]; 
+    }     
+    template <typename T>  
+    inline void Vec2<T>::operator-=(const Vec2 & rhs)
+    { 
+        this->m_data[0] -= rhs.m_data[0]; 
+        this->m_data[1] -= rhs.m_data[1]; 
+    }
+    template <typename T>  
+    inline void Vec2<T>::operator-=(T a)
+    { 
+        this->m_data[0] -= a; 
+        this->m_data[1] -= a; 
+    }
+    template <typename T>  
+    inline void Vec2<T>::operator+=(T a)
+    { 
+        this->m_data[0] += a; 
+        this->m_data[1] += a; 
+    }
+    template <typename T>  
+    inline void Vec2<T>::operator/=(T a)
+    { 
+        this->m_data[0] /= a; 
+        this->m_data[1] /= a; 
+    }
+    template <typename T>  
+    inline void Vec2<T>::operator*=(T a)
+    { 
+        this->m_data[0] *= a; 
+        this->m_data[1] *= a; 
+    }  
+    template <typename T> 
+    inline T Vec2<T>::operator^ (const Vec2<T> & rhs) const
+    {
+        return m_data[0] * rhs.m_data[1] - m_data[1] * rhs.m_data[0];
+    }
+    template <typename T>
+    inline T Vec2<T>::operator*(const Vec2<T> & rhs) const
+    {
+        return (m_data[0] * rhs.m_data[0] + m_data[1] * rhs.m_data[1]);
+    }        
+    template <typename T>
+    inline Vec2<T> Vec2<T>::operator+(const Vec2<T> & rhs) const
+    {
+        return Vec2<T>(m_data[0] + rhs.m_data[0],m_data[1] + rhs.m_data[1]);
+    }
+    template <typename T> 
+    inline  Vec2<T> Vec2<T>::operator-(const Vec2<T> & rhs) const
+    {
+        return Vec2<T>(m_data[0] - rhs.m_data[0],m_data[1] - rhs.m_data[1]);
+    }     
+    template <typename T> 
+    inline  Vec2<T> Vec2<T>::operator-() const
+    {
+        return Vec2<T>(-m_data[0],-m_data[1]) ;
+    }     
+
+    template <typename T> 
+    inline Vec2<T> Vec2<T>::operator*(T rhs) const
+    {
+        return Vec2<T>(rhs * this->m_data[0], rhs * this->m_data[1]);
+    }
+    template <typename T>
+    inline Vec2<T> Vec2<T>::operator/ (T rhs) const
+    {
+        return Vec2<T>(m_data[0] / rhs, m_data[1] / rhs);
+    }
+    template <typename T>
+    inline Vec2<T>::Vec2(T a) 
+    { 
+        m_data[0] = m_data[1] = a; 
+    }
+    template <typename T>
+    inline Vec2<T>::Vec2(T x, T y)
+    {
+        m_data[0] = x;
+        m_data[1] = y;
+    }
+    template <typename T>
+    inline Vec2<T>::Vec2(const Vec2 & rhs)
+    {        
+        m_data[0] = rhs.m_data[0];
+        m_data[1] = rhs.m_data[1];
+    }
+    template <typename T>
+    inline Vec2<T>::~Vec2(void){};
+
+    template <typename T>
+    inline Vec2<T>::Vec2() {}
+
+   /*
+     InsideTriangle decides if a point P is Inside of the triangle
+     defined by A, B, C.
+   */
+    template<typename T>
+    inline const bool InsideTriangle(const Vec2<T> & a, const Vec2<T> & b, const Vec2<T> & c, const Vec2<T> & p)
+    {
+        T ax, ay, bx, by, cx, cy, apx, apy, bpx, bpy, cpx, cpy;
+        T cCROSSap, bCROSScp, aCROSSbp;
+        ax = c.X() - b.X();  ay = c.Y() - b.Y();
+        bx = a.X() - c.X();  by = a.Y() - c.Y();
+        cx = b.X() - a.X();  cy = b.Y() - a.Y();
+        apx= p.X() - a.X();  apy= p.Y() - a.Y();
+        bpx= p.X() - b.X();  bpy= p.Y() - b.Y();
+        cpx= p.X() - c.X();  cpy= p.Y() - c.Y();
+        aCROSSbp = ax*bpy - ay*bpx;
+        cCROSSap = cx*apy - cy*apx;
+        bCROSScp = bx*cpy - by*cpx;
+        return ((aCROSSbp >= 0.0) && (bCROSScp >= 0.0) && (cCROSSap >= 0.0));
+    }
+}
+#endif //VHACD_VECTOR_INL
\ No newline at end of file
diff --git a/thirdparty/vhacd/inc/vhacdVolume.h b/thirdparty/vhacd/inc/vhacdVolume.h
new file mode 100644
index 0000000000..8c47fa1e2c
--- /dev/null
+++ b/thirdparty/vhacd/inc/vhacdVolume.h
@@ -0,0 +1,430 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_VOLUME_H
+#define VHACD_VOLUME_H
+#include "vhacdMesh.h"
+#include "vhacdVector.h"
+#include <assert.h>
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4456 4701)
+#endif
+
+namespace VHACD {
+
+enum VOXEL_VALUE {
+    PRIMITIVE_UNDEFINED = 0,
+    PRIMITIVE_OUTSIDE_SURFACE = 1,
+    PRIMITIVE_INSIDE_SURFACE = 2,
+    PRIMITIVE_ON_SURFACE = 3
+};
+
+struct Voxel {
+public:
+    short m_coord[3];
+    short m_data;
+};
+
+class PrimitiveSet {
+public:
+    virtual ~PrimitiveSet(){};
+    virtual PrimitiveSet* Create() const = 0;
+    virtual const size_t GetNPrimitives() const = 0;
+    virtual const size_t GetNPrimitivesOnSurf() const = 0;
+    virtual const size_t GetNPrimitivesInsideSurf() const = 0;
+    virtual const double GetEigenValue(AXIS axis) const = 0;
+    virtual const double ComputeMaxVolumeError() const = 0;
+    virtual const double ComputeVolume() const = 0;
+    virtual void Clip(const Plane& plane, PrimitiveSet* const positivePart,
+        PrimitiveSet* const negativePart) const = 0;
+    virtual void Intersect(const Plane& plane, SArray<Vec3<double> >* const positivePts,
+        SArray<Vec3<double> >* const negativePts, const size_t sampling) const = 0;
+    virtual void ComputeExteriorPoints(const Plane& plane, const Mesh& mesh,
+        SArray<Vec3<double> >* const exteriorPts) const = 0;
+    virtual void ComputeClippedVolumes(const Plane& plane, double& positiveVolume,
+        double& negativeVolume) const = 0;
+    virtual void SelectOnSurface(PrimitiveSet* const onSurfP) const = 0;
+    virtual void ComputeConvexHull(Mesh& meshCH, const size_t sampling = 1) const = 0;
+    virtual void ComputeBB() = 0;
+    virtual void ComputePrincipalAxes() = 0;
+    virtual void AlignToPrincipalAxes() = 0;
+    virtual void RevertAlignToPrincipalAxes() = 0;
+    virtual void Convert(Mesh& mesh, const VOXEL_VALUE value) const = 0;
+    const Mesh& GetConvexHull() const { return m_convexHull; };
+    Mesh& GetConvexHull() { return m_convexHull; };
+private:
+    Mesh m_convexHull;
+};
+
+//!
+class VoxelSet : public PrimitiveSet {
+    friend class Volume;
+
+public:
+    //! Destructor.
+    ~VoxelSet(void);
+    //! Constructor.
+    VoxelSet();
+
+    const size_t GetNPrimitives() const { return m_voxels.Size(); }
+    const size_t GetNPrimitivesOnSurf() const { return m_numVoxelsOnSurface; }
+    const size_t GetNPrimitivesInsideSurf() const { return m_numVoxelsInsideSurface; }
+    const double GetEigenValue(AXIS axis) const { return m_D[axis][axis]; }
+    const double ComputeVolume() const { return m_unitVolume * m_voxels.Size(); }
+    const double ComputeMaxVolumeError() const { return m_unitVolume * m_numVoxelsOnSurface; }
+    const Vec3<short>& GetMinBBVoxels() const { return m_minBBVoxels; }
+    const Vec3<short>& GetMaxBBVoxels() const { return m_maxBBVoxels; }
+    const Vec3<double>& GetMinBB() const { return m_minBB; }
+    const double& GetScale() const { return m_scale; }
+    const double& GetUnitVolume() const { return m_unitVolume; }
+    Vec3<double> GetPoint(Vec3<short> voxel) const
+    {
+        return Vec3<double>(voxel[0] * m_scale + m_minBB[0],
+            voxel[1] * m_scale + m_minBB[1],
+            voxel[2] * m_scale + m_minBB[2]);
+    }
+    Vec3<double> GetPoint(const Voxel& voxel) const
+    {
+        return Vec3<double>(voxel.m_coord[0] * m_scale + m_minBB[0],
+            voxel.m_coord[1] * m_scale + m_minBB[1],
+            voxel.m_coord[2] * m_scale + m_minBB[2]);
+    }
+    Vec3<double> GetPoint(Vec3<double> voxel) const
+    {
+        return Vec3<double>(voxel[0] * m_scale + m_minBB[0],
+            voxel[1] * m_scale + m_minBB[1],
+            voxel[2] * m_scale + m_minBB[2]);
+    }
+    void GetPoints(const Voxel& voxel, Vec3<double>* const pts) const;
+    void ComputeConvexHull(Mesh& meshCH, const size_t sampling = 1) const;
+    void Clip(const Plane& plane, PrimitiveSet* const positivePart, PrimitiveSet* const negativePart) const;
+    void Intersect(const Plane& plane, SArray<Vec3<double> >* const positivePts,
+        SArray<Vec3<double> >* const negativePts, const size_t sampling) const;
+    void ComputeExteriorPoints(const Plane& plane, const Mesh& mesh,
+        SArray<Vec3<double> >* const exteriorPts) const;
+    void ComputeClippedVolumes(const Plane& plane, double& positiveVolume, double& negativeVolume) const;
+    void SelectOnSurface(PrimitiveSet* const onSurfP) const;
+    void ComputeBB();
+    void Convert(Mesh& mesh, const VOXEL_VALUE value) const;
+    void ComputePrincipalAxes();
+    PrimitiveSet* Create() const
+    {
+        return new VoxelSet();
+    }
+    void AlignToPrincipalAxes(){};
+    void RevertAlignToPrincipalAxes(){};
+    Voxel* const GetVoxels() { return m_voxels.Data(); }
+    const Voxel* const GetVoxels() const { return m_voxels.Data(); }
+
+private:
+    size_t m_numVoxelsOnSurface;
+    size_t m_numVoxelsInsideSurface;
+    Vec3<double> m_minBB;
+    double m_scale;
+    SArray<Voxel, 8> m_voxels;
+    double m_unitVolume;
+    Vec3<double> m_minBBPts;
+    Vec3<double> m_maxBBPts;
+    Vec3<short> m_minBBVoxels;
+    Vec3<short> m_maxBBVoxels;
+    Vec3<short> m_barycenter;
+    double m_Q[3][3];
+    double m_D[3][3];
+    Vec3<double> m_barycenterPCA;
+};
+
+struct Tetrahedron {
+public:
+    Vec3<double> m_pts[4];
+    unsigned char m_data;
+};
+
+//!
+class TetrahedronSet : public PrimitiveSet {
+    friend class Volume;
+
+public:
+    //! Destructor.
+    ~TetrahedronSet(void);
+    //! Constructor.
+    TetrahedronSet();
+
+    const size_t GetNPrimitives() const { return m_tetrahedra.Size(); }
+    const size_t GetNPrimitivesOnSurf() const { return m_numTetrahedraOnSurface; }
+    const size_t GetNPrimitivesInsideSurf() const { return m_numTetrahedraInsideSurface; }
+    const Vec3<double>& GetMinBB() const { return m_minBB; }
+    const Vec3<double>& GetMaxBB() const { return m_maxBB; }
+    const Vec3<double>& GetBarycenter() const { return m_barycenter; }
+    const double GetEigenValue(AXIS axis) const { return m_D[axis][axis]; }
+    const double GetSacle() const { return m_scale; }
+    const double ComputeVolume() const;
+    const double ComputeMaxVolumeError() const;
+    void ComputeConvexHull(Mesh& meshCH, const size_t sampling = 1) const;
+    void ComputePrincipalAxes();
+    void AlignToPrincipalAxes();
+    void RevertAlignToPrincipalAxes();
+    void Clip(const Plane& plane, PrimitiveSet* const positivePart, PrimitiveSet* const negativePart) const;
+    void Intersect(const Plane& plane, SArray<Vec3<double> >* const positivePts,
+        SArray<Vec3<double> >* const negativePts, const size_t sampling) const;
+    void ComputeExteriorPoints(const Plane& plane, const Mesh& mesh,
+        SArray<Vec3<double> >* const exteriorPts) const;
+    void ComputeClippedVolumes(const Plane& plane, double& positiveVolume, double& negativeVolume) const;
+    void SelectOnSurface(PrimitiveSet* const onSurfP) const;
+    void ComputeBB();
+    void Convert(Mesh& mesh, const VOXEL_VALUE value) const;
+    inline bool Add(Tetrahedron& tetrahedron);
+    PrimitiveSet* Create() const
+    {
+        return new TetrahedronSet();
+    }
+    static const double EPS;
+
+private:
+    void AddClippedTetrahedra(const Vec3<double> (&pts)[10], const int32_t nPts);
+
+    size_t m_numTetrahedraOnSurface;
+    size_t m_numTetrahedraInsideSurface;
+    double m_scale;
+    Vec3<double> m_minBB;
+    Vec3<double> m_maxBB;
+    Vec3<double> m_barycenter;
+    SArray<Tetrahedron, 8> m_tetrahedra;
+    double m_Q[3][3];
+    double m_D[3][3];
+};
+
+//!
+class Volume {
+public:
+    //! Destructor.
+    ~Volume(void);
+
+    //! Constructor.
+    Volume();
+
+    //! Voxelize
+    template <class T>
+    void Voxelize(const T* const points, const uint32_t stridePoints, const uint32_t nPoints,
+        const int32_t* const triangles, const uint32_t strideTriangles, const uint32_t nTriangles,
+        const size_t dim, const Vec3<double>& barycenter, const double (&rot)[3][3]);
+    unsigned char& GetVoxel(const size_t i, const size_t j, const size_t k)
+    {
+        assert(i < m_dim[0] || i >= 0);
+        assert(j < m_dim[0] || j >= 0);
+        assert(k < m_dim[0] || k >= 0);
+        return m_data[i + j * m_dim[0] + k * m_dim[0] * m_dim[1]];
+    }
+    const unsigned char& GetVoxel(const size_t i, const size_t j, const size_t k) const
+    {
+        assert(i < m_dim[0] || i >= 0);
+        assert(j < m_dim[0] || j >= 0);
+        assert(k < m_dim[0] || k >= 0);
+        return m_data[i + j * m_dim[0] + k * m_dim[0] * m_dim[1]];
+    }
+    const size_t GetNPrimitivesOnSurf() const { return m_numVoxelsOnSurface; }
+    const size_t GetNPrimitivesInsideSurf() const { return m_numVoxelsInsideSurface; }
+    void Convert(Mesh& mesh, const VOXEL_VALUE value) const;
+    void Convert(VoxelSet& vset) const;
+    void Convert(TetrahedronSet& tset) const;
+    void AlignToPrincipalAxes(double (&rot)[3][3]) const;
+
+private:
+    void FillOutsideSurface(const size_t i0, const size_t j0, const size_t k0, const size_t i1,
+        const size_t j1, const size_t k1);
+    void FillInsideSurface();
+    template <class T>
+    void ComputeBB(const T* const points, const uint32_t stridePoints, const uint32_t nPoints,
+        const Vec3<double>& barycenter, const double (&rot)[3][3]);
+    void Allocate();
+    void Free();
+
+    Vec3<double> m_minBB;
+    Vec3<double> m_maxBB;
+    double m_scale;
+    size_t m_dim[3]; //>! dim
+    size_t m_numVoxelsOnSurface;
+    size_t m_numVoxelsInsideSurface;
+    size_t m_numVoxelsOutsideSurface;
+    unsigned char* m_data;
+};
+int32_t TriBoxOverlap(const Vec3<double>& boxcenter, const Vec3<double>& boxhalfsize, const Vec3<double>& triver0,
+    const Vec3<double>& triver1, const Vec3<double>& triver2);
+template <class T>
+inline void ComputeAlignedPoint(const T* const points, const uint32_t idx, const Vec3<double>& barycenter,
+    const double (&rot)[3][3], Vec3<double>& pt){};
+template <>
+inline void ComputeAlignedPoint<float>(const float* const points, const uint32_t idx, const Vec3<double>& barycenter, const double (&rot)[3][3], Vec3<double>& pt)
+{
+    double x = points[idx + 0] - barycenter[0];
+    double y = points[idx + 1] - barycenter[1];
+    double z = points[idx + 2] - barycenter[2];
+    pt[0] = rot[0][0] * x + rot[1][0] * y + rot[2][0] * z;
+    pt[1] = rot[0][1] * x + rot[1][1] * y + rot[2][1] * z;
+    pt[2] = rot[0][2] * x + rot[1][2] * y + rot[2][2] * z;
+}
+template <>
+inline void ComputeAlignedPoint<double>(const double* const points, const uint32_t idx, const Vec3<double>& barycenter, const double (&rot)[3][3], Vec3<double>& pt)
+{
+    double x = points[idx + 0] - barycenter[0];
+    double y = points[idx + 1] - barycenter[1];
+    double z = points[idx + 2] - barycenter[2];
+    pt[0] = rot[0][0] * x + rot[1][0] * y + rot[2][0] * z;
+    pt[1] = rot[0][1] * x + rot[1][1] * y + rot[2][1] * z;
+    pt[2] = rot[0][2] * x + rot[1][2] * y + rot[2][2] * z;
+}
+template <class T>
+void Volume::ComputeBB(const T* const points, const uint32_t stridePoints, const uint32_t nPoints,
+    const Vec3<double>& barycenter, const double (&rot)[3][3])
+{
+    Vec3<double> pt;
+    ComputeAlignedPoint(points, 0, barycenter, rot, pt);
+    m_maxBB = pt;
+    m_minBB = pt;
+    for (uint32_t v = 1; v < nPoints; ++v) {
+        ComputeAlignedPoint(points, v * stridePoints, barycenter, rot, pt);
+        for (int32_t i = 0; i < 3; ++i) {
+            if (pt[i] < m_minBB[i])
+                m_minBB[i] = pt[i];
+            else if (pt[i] > m_maxBB[i])
+                m_maxBB[i] = pt[i];
+        }
+    }
+}
+template <class T>
+void Volume::Voxelize(const T* const points, const uint32_t stridePoints, const uint32_t nPoints,
+    const int32_t* const triangles, const uint32_t strideTriangles, const uint32_t nTriangles,
+    const size_t dim, const Vec3<double>& barycenter, const double (&rot)[3][3])
+{
+    if (nPoints == 0) {
+        return;
+    }
+    ComputeBB(points, stridePoints, nPoints, barycenter, rot);
+
+    double d[3] = { m_maxBB[0] - m_minBB[0], m_maxBB[1] - m_minBB[1], m_maxBB[2] - m_minBB[2] };
+    double r;
+    if (d[0] > d[1] && d[0] > d[2]) {
+        r = d[0];
+        m_dim[0] = dim;
+        m_dim[1] = 2 + static_cast<size_t>(dim * d[1] / d[0]);
+        m_dim[2] = 2 + static_cast<size_t>(dim * d[2] / d[0]);
+    }
+    else if (d[1] > d[0] && d[1] > d[2]) {
+        r = d[1];
+        m_dim[1] = dim;
+        m_dim[0] = 2 + static_cast<size_t>(dim * d[0] / d[1]);
+        m_dim[2] = 2 + static_cast<size_t>(dim * d[2] / d[1]);
+    }
+    else {
+        r = d[2];
+        m_dim[2] = dim;
+        m_dim[0] = 2 + static_cast<size_t>(dim * d[0] / d[2]);
+        m_dim[1] = 2 + static_cast<size_t>(dim * d[1] / d[2]);
+    }
+
+    m_scale = r / (dim - 1);
+    double invScale = (dim - 1) / r;
+
+    Allocate();
+    m_numVoxelsOnSurface = 0;
+    m_numVoxelsInsideSurface = 0;
+    m_numVoxelsOutsideSurface = 0;
+
+    Vec3<double> p[3];
+    size_t i, j, k;
+    size_t i0, j0, k0;
+    size_t i1, j1, k1;
+    Vec3<double> boxcenter;
+    Vec3<double> pt;
+    const Vec3<double> boxhalfsize(0.5, 0.5, 0.5);
+    for (size_t t = 0, ti = 0; t < nTriangles; ++t, ti += strideTriangles) {
+        Vec3<int32_t> tri(triangles[ti + 0],
+            triangles[ti + 1],
+            triangles[ti + 2]);
+        for (int32_t c = 0; c < 3; ++c) {
+            ComputeAlignedPoint(points, tri[c] * stridePoints, barycenter, rot, pt);
+            p[c][0] = (pt[0] - m_minBB[0]) * invScale;
+            p[c][1] = (pt[1] - m_minBB[1]) * invScale;
+            p[c][2] = (pt[2] - m_minBB[2]) * invScale;
+            i = static_cast<size_t>(p[c][0] + 0.5);
+            j = static_cast<size_t>(p[c][1] + 0.5);
+            k = static_cast<size_t>(p[c][2] + 0.5);
+            assert(i < m_dim[0] && i >= 0 && j < m_dim[1] && j >= 0 && k < m_dim[2] && k >= 0);
+
+            if (c == 0) {
+                i0 = i1 = i;
+                j0 = j1 = j;
+                k0 = k1 = k;
+            }
+            else {
+                if (i < i0)
+                    i0 = i;
+                if (j < j0)
+                    j0 = j;
+                if (k < k0)
+                    k0 = k;
+                if (i > i1)
+                    i1 = i;
+                if (j > j1)
+                    j1 = j;
+                if (k > k1)
+                    k1 = k;
+            }
+        }
+        if (i0 > 0)
+            --i0;
+        if (j0 > 0)
+            --j0;
+        if (k0 > 0)
+            --k0;
+        if (i1 < m_dim[0])
+            ++i1;
+        if (j1 < m_dim[1])
+            ++j1;
+        if (k1 < m_dim[2])
+            ++k1;
+        for (size_t i = i0; i < i1; ++i) {
+            boxcenter[0] = (double)i;
+            for (size_t j = j0; j < j1; ++j) {
+                boxcenter[1] = (double)j;
+                for (size_t k = k0; k < k1; ++k) {
+                    boxcenter[2] = (double)k;
+                    int32_t res = TriBoxOverlap(boxcenter, boxhalfsize, p[0], p[1], p[2]);
+                    unsigned char& value = GetVoxel(i, j, k);
+                    if (res == 1 && value == PRIMITIVE_UNDEFINED) {
+                        value = PRIMITIVE_ON_SURFACE;
+                        ++m_numVoxelsOnSurface;
+                    }
+                }
+            }
+        }
+    }
+    FillOutsideSurface(0, 0, 0, m_dim[0], m_dim[1], 1);
+    FillOutsideSurface(0, 0, m_dim[2] - 1, m_dim[0], m_dim[1], m_dim[2]);
+    FillOutsideSurface(0, 0, 0, m_dim[0], 1, m_dim[2]);
+    FillOutsideSurface(0, m_dim[1] - 1, 0, m_dim[0], m_dim[1], m_dim[2]);
+    FillOutsideSurface(0, 0, 0, 1, m_dim[1], m_dim[2]);
+    FillOutsideSurface(m_dim[0] - 1, 0, 0, m_dim[0], m_dim[1], m_dim[2]);
+    FillInsideSurface();
+}
+}
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+
+#endif // VHACD_VOLUME_H
diff --git a/thirdparty/vhacd/public/VHACD.h b/thirdparty/vhacd/public/VHACD.h
new file mode 100644
index 0000000000..863aeda9de
--- /dev/null
+++ b/thirdparty/vhacd/public/VHACD.h
@@ -0,0 +1,153 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+#ifndef VHACD_H
+#define VHACD_H
+
+#define VHACD_VERSION_MAJOR 2
+#define VHACD_VERSION_MINOR 3
+
+// Changes for version 2.3
+//
+// m_gamma : Has been removed.  This used to control the error metric to merge convex hulls.  Now it uses the 'm_maxConvexHulls' value instead.
+// m_maxConvexHulls : This is the maximum number of convex hulls to produce from the merge operation; replaces 'm_gamma'.
+//
+// Note that decomposition depth is no longer a user provided value.  It is now derived from the 
+// maximum number of hulls requested.
+//
+// As a convenience to the user, each convex hull produced now includes the volume of the hull as well as it's center.
+//
+// This version supports a convenience method to automatically make V-HACD run asynchronously in a background thread.
+// To get a fully asynchronous version, call 'CreateVHACD_ASYNC' instead of 'CreateVHACD'.  You get the same interface however,
+// now when computing convex hulls, it is no longer a blocking operation.  All callback messages are still returned
+// in the application's thread so you don't need to worry about mutex locks or anything in that case.
+// To tell if the operation is complete, the application should call 'IsReady'.  This will return true if
+// the last approximation operation is complete and will dispatch any pending messages.
+// If you call 'Compute' while a previous operation was still running, it will automatically cancel the last request
+// and begin a new one.  To cancel a currently running approximation just call 'Cancel'.
+#include <stdint.h>
+
+namespace VHACD {
+class IVHACD {
+public:
+    class IUserCallback {
+    public:
+        virtual ~IUserCallback(){};
+        virtual void Update(const double overallProgress,
+            const double stageProgress,
+            const double operationProgress,
+            const char* const stage,
+            const char* const operation)
+            = 0;
+    };
+
+    class IUserLogger {
+    public:
+        virtual ~IUserLogger(){};
+        virtual void Log(const char* const msg) = 0;
+    };
+
+    class ConvexHull {
+    public:
+        double* m_points;
+        uint32_t* m_triangles;
+        uint32_t m_nPoints;
+        uint32_t m_nTriangles;
+		double		m_volume;
+		double		m_center[3];
+    };
+
+    class Parameters {
+    public:
+        Parameters(void) { Init(); }
+        void Init(void)
+        {
+            m_resolution = 100000;
+            m_concavity = 0.001;
+            m_planeDownsampling = 4;
+            m_convexhullDownsampling = 4;
+            m_alpha = 0.05;
+            m_beta = 0.05;
+            m_pca = 0;
+            m_mode = 0; // 0: voxel-based (recommended), 1: tetrahedron-based
+            m_maxNumVerticesPerCH = 64;
+            m_minVolumePerCH = 0.0001;
+            m_callback = 0;
+            m_logger = 0;
+            m_convexhullApproximation = true;
+            m_oclAcceleration = true;
+            m_maxConvexHulls = 1024;
+			m_projectHullVertices = true; // This will project the output convex hull vertices onto the original source mesh to increase the floating point accuracy of the results
+        }
+        double m_concavity;
+        double m_alpha;
+        double m_beta;
+        double m_minVolumePerCH;
+        IUserCallback* m_callback;
+        IUserLogger* m_logger;
+        uint32_t m_resolution;
+        uint32_t m_maxNumVerticesPerCH;
+        uint32_t m_planeDownsampling;
+        uint32_t m_convexhullDownsampling;
+        uint32_t m_pca;
+        uint32_t m_mode;
+        uint32_t m_convexhullApproximation;
+        uint32_t m_oclAcceleration;
+        uint32_t	m_maxConvexHulls;
+		bool	m_projectHullVertices;
+    };
+
+    virtual void Cancel() = 0;
+    virtual bool Compute(const float* const points,
+        const uint32_t countPoints,
+        const uint32_t* const triangles,
+        const uint32_t countTriangles,
+        const Parameters& params)
+        = 0;
+    virtual bool Compute(const double* const points,
+        const uint32_t countPoints,
+        const uint32_t* const triangles,
+        const uint32_t countTriangles,
+        const Parameters& params)
+        = 0;
+    virtual uint32_t GetNConvexHulls() const = 0;
+    virtual void GetConvexHull(const uint32_t index, ConvexHull& ch) const = 0;
+    virtual void Clean(void) = 0; // release internally allocated memory
+    virtual void Release(void) = 0; // release IVHACD
+    virtual bool OCLInit(void* const oclDevice,
+        IUserLogger* const logger = 0)
+        = 0;
+    virtual bool OCLRelease(IUserLogger* const logger = 0) = 0;
+
+	// Will compute the center of mass of the convex hull decomposition results and return it
+	// in 'centerOfMass'.  Returns false if the center of mass could not be computed.
+	virtual bool ComputeCenterOfMass(double centerOfMass[3]) const = 0;
+
+	// In synchronous mode (non-multi-threaded) the state is always 'ready'
+	// In asynchronous mode, this returns true if the background thread is not still actively computing
+	// a new solution.  In an asynchronous config the 'IsReady' call will report any update or log
+	// messages in the caller's current thread.
+	virtual bool IsReady(void) const
+	{
+		return true;
+	}
+
+protected:
+    virtual ~IVHACD(void) {}
+};
+IVHACD* CreateVHACD(void);
+IVHACD* CreateVHACD_ASYNC(void);
+}
+#endif // VHACD_H
diff --git a/thirdparty/vhacd/src/FloatMath.cpp b/thirdparty/vhacd/src/FloatMath.cpp
new file mode 100644
index 0000000000..481e875104
--- /dev/null
+++ b/thirdparty/vhacd/src/FloatMath.cpp
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <math.h>
+#include <float.h>
+#include "FloatMath.h"
+#include <vector>
+
+#define REAL float
+
+#include "FloatMath.inl"
+
+#undef REAL
+#define REAL double
+
+#include "FloatMath.inl"
diff --git a/thirdparty/vhacd/src/FloatMath.inl b/thirdparty/vhacd/src/FloatMath.inl
new file mode 100644
index 0000000000..ce529e6f71
--- /dev/null
+++ b/thirdparty/vhacd/src/FloatMath.inl
@@ -0,0 +1,5276 @@
+// a set of routines that let you do common 3d math
+// operations without any vector, matrix, or quaternion
+// classes or templates.
+//
+// a vector (or point) is a 'float *' to 3 floating point numbers.
+// a matrix is a 'float *' to an array of 16 floating point numbers representing a 4x4 transformation matrix compatible with D3D or OGL
+// a quaternion is a 'float *' to 4 floats representing a quaternion x,y,z,w
+//
+
+namespace FLOAT_MATH
+{
+
+void fm_inverseRT(const REAL matrix[16],const REAL pos[3],REAL t[3]) // inverse rotate translate the point.
+{
+
+	REAL _x = pos[0] - matrix[3*4+0];
+	REAL _y = pos[1] - matrix[3*4+1];
+	REAL _z = pos[2] - matrix[3*4+2];
+
+	// Multiply inverse-translated source vector by inverted rotation transform
+
+	t[0] = (matrix[0*4+0] * _x) + (matrix[0*4+1] * _y) + (matrix[0*4+2] * _z);
+	t[1] = (matrix[1*4+0] * _x) + (matrix[1*4+1] * _y) + (matrix[1*4+2] * _z);
+	t[2] = (matrix[2*4+0] * _x) + (matrix[2*4+1] * _y) + (matrix[2*4+2] * _z);
+
+}
+
+REAL fm_getDeterminant(const REAL matrix[16])
+{
+  REAL tempv[3];
+  REAL p0[3];
+  REAL p1[3];
+  REAL p2[3];
+
+
+	p0[0] = matrix[0*4+0];
+	p0[1] = matrix[0*4+1];
+	p0[2] = matrix[0*4+2];
+
+	p1[0] = matrix[1*4+0];
+	p1[1] = matrix[1*4+1];
+	p1[2] = matrix[1*4+2];
+
+	p2[0] = matrix[2*4+0];
+	p2[1] = matrix[2*4+1];
+	p2[2] = matrix[2*4+2];
+
+  fm_cross(tempv,p1,p2);
+
+  return fm_dot(p0,tempv);
+
+}
+
+REAL fm_squared(REAL x) { return x*x; };
+
+void fm_decomposeTransform(const REAL local_transform[16],REAL trans[3],REAL rot[4],REAL scale[3])
+{
+
+  trans[0] = local_transform[12];
+  trans[1] = local_transform[13];
+  trans[2] = local_transform[14];
+
+  scale[0] = (REAL)sqrt(fm_squared(local_transform[0*4+0]) + fm_squared(local_transform[0*4+1]) + fm_squared(local_transform[0*4+2]));
+  scale[1] = (REAL)sqrt(fm_squared(local_transform[1*4+0]) + fm_squared(local_transform[1*4+1]) + fm_squared(local_transform[1*4+2]));
+  scale[2] = (REAL)sqrt(fm_squared(local_transform[2*4+0]) + fm_squared(local_transform[2*4+1]) + fm_squared(local_transform[2*4+2]));
+
+  REAL m[16];
+  memcpy(m,local_transform,sizeof(REAL)*16);
+
+  REAL sx = 1.0f / scale[0];
+  REAL sy = 1.0f / scale[1];
+  REAL sz = 1.0f / scale[2];
+
+  m[0*4+0]*=sx;
+  m[0*4+1]*=sx;
+  m[0*4+2]*=sx;
+
+  m[1*4+0]*=sy;
+  m[1*4+1]*=sy;
+  m[1*4+2]*=sy;
+
+  m[2*4+0]*=sz;
+  m[2*4+1]*=sz;
+  m[2*4+2]*=sz;
+
+  fm_matrixToQuat(m,rot);
+
+}
+
+void fm_getSubMatrix(int32_t ki,int32_t kj,REAL pDst[16],const REAL matrix[16])
+{
+	int32_t row, col;
+	int32_t dstCol = 0, dstRow = 0;
+
+	for ( col = 0; col < 4; col++ )
+	{
+		if ( col == kj )
+		{
+			continue;
+		}
+		for ( dstRow = 0, row = 0; row < 4; row++ )
+		{
+			if ( row == ki )
+			{
+				continue;
+			}
+			pDst[dstCol*4+dstRow] = matrix[col*4+row];
+			dstRow++;
+		}
+		dstCol++;
+	}
+}
+
+void  fm_inverseTransform(const REAL matrix[16],REAL inverse_matrix[16])
+{
+	REAL determinant = fm_getDeterminant(matrix);
+	determinant = 1.0f / determinant;
+	for (int32_t i = 0; i < 4; i++ )
+	{
+		for (int32_t j = 0; j < 4; j++ )
+		{
+			int32_t sign = 1 - ( ( i + j ) % 2 ) * 2;
+			REAL subMat[16];
+			fm_identity(subMat);
+			fm_getSubMatrix( i, j, subMat, matrix );
+			REAL subDeterminant = fm_getDeterminant(subMat);
+			inverse_matrix[i*4+j] = ( subDeterminant * sign ) * determinant;
+		}
+	}
+}
+
+void fm_identity(REAL matrix[16]) // set 4x4 matrix to identity.
+{
+	matrix[0*4+0] = 1;
+	matrix[1*4+1] = 1;
+	matrix[2*4+2] = 1;
+	matrix[3*4+3] = 1;
+
+	matrix[1*4+0] = 0;
+	matrix[2*4+0] = 0;
+	matrix[3*4+0] = 0;
+
+	matrix[0*4+1] = 0;
+	matrix[2*4+1] = 0;
+	matrix[3*4+1] = 0;
+
+	matrix[0*4+2] = 0;
+	matrix[1*4+2] = 0;
+	matrix[3*4+2] = 0;
+
+	matrix[0*4+3] = 0;
+	matrix[1*4+3] = 0;
+	matrix[2*4+3] = 0;
+
+}
+
+void  fm_quatToEuler(const REAL quat[4],REAL &ax,REAL &ay,REAL &az)
+{
+	REAL x = quat[0];
+	REAL y = quat[1];
+	REAL z = quat[2];
+	REAL w = quat[3];
+
+	REAL sint	     = (2.0f * w * y) - (2.0f * x * z);
+	REAL cost_temp = 1.0f - (sint * sint);
+	REAL cost	   	 = 0;
+
+	if ( (REAL)fabs(cost_temp) > 0.001f )
+	{
+		cost = (REAL)sqrt( cost_temp );
+	}
+
+	REAL sinv, cosv, sinf, cosf;
+	if ( (REAL)fabs(cost) > 0.001f )
+	{
+	cost = 1.0f / cost;
+		sinv = ((2.0f * y * z) + (2.0f * w * x)) * cost;
+		cosv = (1.0f - (2.0f * x * x) - (2.0f * y * y)) * cost;
+		sinf = ((2.0f * x * y) + (2.0f * w * z)) * cost;
+		cosf = (1.0f - (2.0f * y * y) - (2.0f * z * z)) * cost;
+	}
+	else
+	{
+		sinv = (2.0f * w * x) - (2.0f * y * z);
+		cosv = 1.0f - (2.0f * x * x) - (2.0f * z * z);
+		sinf = 0;
+		cosf = 1.0f;
+	}
+
+	// compute output rotations
+	ax	= (REAL)atan2( sinv, cosv );
+	ay	= (REAL)atan2( sint, cost );
+	az	= (REAL)atan2( sinf, cosf );
+
+}
+
+void fm_eulerToMatrix(REAL ax,REAL ay,REAL az,REAL *matrix) // convert euler (in radians) to a dest 4x4 matrix (translation set to zero)
+{
+  REAL quat[4];
+  fm_eulerToQuat(ax,ay,az,quat);
+  fm_quatToMatrix(quat,matrix);
+}
+
+void fm_getAABB(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *bmin,REAL *bmax)
+{
+
+  const uint8_t *source = (const uint8_t *) points;
+
+	bmin[0] = points[0];
+	bmin[1] = points[1];
+	bmin[2] = points[2];
+
+	bmax[0] = points[0];
+	bmax[1] = points[1];
+	bmax[2] = points[2];
+
+
+  for (uint32_t i=1; i<vcount; i++)
+  {
+	source+=pstride;
+	const REAL *p = (const REAL *) source;
+
+	if ( p[0] < bmin[0] ) bmin[0] = p[0];
+	if ( p[1] < bmin[1] ) bmin[1] = p[1];
+	if ( p[2] < bmin[2] ) bmin[2] = p[2];
+
+		if ( p[0] > bmax[0] ) bmax[0] = p[0];
+		if ( p[1] > bmax[1] ) bmax[1] = p[1];
+		if ( p[2] > bmax[2] ) bmax[2] = p[2];
+
+  }
+}
+
+void  fm_eulerToQuat(const REAL *euler,REAL *quat) // convert euler angles to quaternion.
+{
+  fm_eulerToQuat(euler[0],euler[1],euler[2],quat);
+}
+
+void fm_eulerToQuat(REAL roll,REAL pitch,REAL yaw,REAL *quat) // convert euler angles to quaternion.
+{
+	roll  *= 0.5f;
+	pitch *= 0.5f;
+	yaw   *= 0.5f;
+
+	REAL cr = (REAL)cos(roll);
+	REAL cp = (REAL)cos(pitch);
+	REAL cy = (REAL)cos(yaw);
+
+	REAL sr = (REAL)sin(roll);
+	REAL sp = (REAL)sin(pitch);
+	REAL sy = (REAL)sin(yaw);
+
+	REAL cpcy = cp * cy;
+	REAL spsy = sp * sy;
+	REAL spcy = sp * cy;
+	REAL cpsy = cp * sy;
+
+	quat[0]   = ( sr * cpcy - cr * spsy);
+	quat[1]   = ( cr * spcy + sr * cpsy);
+	quat[2]   = ( cr * cpsy - sr * spcy);
+	quat[3]   = cr * cpcy + sr * spsy;
+}
+
+void fm_quatToMatrix(const REAL *quat,REAL *matrix) // convert quaterinion rotation to matrix, zeros out the translation component.
+{
+
+	REAL xx = quat[0]*quat[0];
+	REAL yy = quat[1]*quat[1];
+	REAL zz = quat[2]*quat[2];
+	REAL xy = quat[0]*quat[1];
+	REAL xz = quat[0]*quat[2];
+	REAL yz = quat[1]*quat[2];
+	REAL wx = quat[3]*quat[0];
+	REAL wy = quat[3]*quat[1];
+	REAL wz = quat[3]*quat[2];
+
+	matrix[0*4+0] = 1 - 2 * ( yy + zz );
+	matrix[1*4+0] =     2 * ( xy - wz );
+	matrix[2*4+0] =     2 * ( xz + wy );
+
+	matrix[0*4+1] =     2 * ( xy + wz );
+	matrix[1*4+1] = 1 - 2 * ( xx + zz );
+	matrix[2*4+1] =     2 * ( yz - wx );
+
+	matrix[0*4+2] =     2 * ( xz - wy );
+	matrix[1*4+2] =     2 * ( yz + wx );
+	matrix[2*4+2] = 1 - 2 * ( xx + yy );
+
+	matrix[3*4+0] = matrix[3*4+1] = matrix[3*4+2] = (REAL) 0.0f;
+	matrix[0*4+3] = matrix[1*4+3] = matrix[2*4+3] = (REAL) 0.0f;
+	matrix[3*4+3] =(REAL) 1.0f;
+
+}
+
+
+void fm_quatRotate(const REAL *quat,const REAL *v,REAL *r) // rotate a vector directly by a quaternion.
+{
+  REAL left[4];
+
+	left[0] =   quat[3]*v[0] + quat[1]*v[2] - v[1]*quat[2];
+	left[1] =   quat[3]*v[1] + quat[2]*v[0] - v[2]*quat[0];
+	left[2] =   quat[3]*v[2] + quat[0]*v[1] - v[0]*quat[1];
+	left[3] = - quat[0]*v[0] - quat[1]*v[1] - quat[2]*v[2];
+
+	r[0] = (left[3]*-quat[0]) + (quat[3]*left[0]) + (left[1]*-quat[2]) - (-quat[1]*left[2]);
+	r[1] = (left[3]*-quat[1]) + (quat[3]*left[1]) + (left[2]*-quat[0]) - (-quat[2]*left[0]);
+	r[2] = (left[3]*-quat[2]) + (quat[3]*left[2]) + (left[0]*-quat[1]) - (-quat[0]*left[1]);
+
+}
+
+
+void fm_getTranslation(const REAL *matrix,REAL *t)
+{
+	t[0] = matrix[3*4+0];
+	t[1] = matrix[3*4+1];
+	t[2] = matrix[3*4+2];
+}
+
+void fm_matrixToQuat(const REAL *matrix,REAL *quat) // convert the 3x3 portion of a 4x4 matrix into a quaterion as x,y,z,w
+{
+
+	REAL tr = matrix[0*4+0] + matrix[1*4+1] + matrix[2*4+2];
+
+	// check the diagonal
+
+	if (tr > 0.0f )
+	{
+		REAL s = (REAL) sqrt ( (double) (tr + 1.0f) );
+		quat[3] = s * 0.5f;
+		s = 0.5f / s;
+		quat[0] = (matrix[1*4+2] - matrix[2*4+1]) * s;
+		quat[1] = (matrix[2*4+0] - matrix[0*4+2]) * s;
+		quat[2] = (matrix[0*4+1] - matrix[1*4+0]) * s;
+
+	}
+	else
+	{
+		// diagonal is negative
+		int32_t nxt[3] = {1, 2, 0};
+		REAL  qa[4];
+
+		int32_t i = 0;
+
+		if (matrix[1*4+1] > matrix[0*4+0]) i = 1;
+		if (matrix[2*4+2] > matrix[i*4+i]) i = 2;
+
+		int32_t j = nxt[i];
+		int32_t k = nxt[j];
+
+		REAL s = (REAL)sqrt ( ((matrix[i*4+i] - (matrix[j*4+j] + matrix[k*4+k])) + 1.0f) );
+
+		qa[i] = s * 0.5f;
+
+		if (s != 0.0f ) s = 0.5f / s;
+
+		qa[3] = (matrix[j*4+k] - matrix[k*4+j]) * s;
+		qa[j] = (matrix[i*4+j] + matrix[j*4+i]) * s;
+		qa[k] = (matrix[i*4+k] + matrix[k*4+i]) * s;
+
+		quat[0] = qa[0];
+		quat[1] = qa[1];
+		quat[2] = qa[2];
+		quat[3] = qa[3];
+	}
+//	fm_normalizeQuat(quat);
+}
+
+
+REAL fm_sphereVolume(REAL radius) // return's the volume of a sphere of this radius (4/3 PI * R cubed )
+{
+	return (4.0f / 3.0f ) * FM_PI * radius * radius * radius;
+}
+
+
+REAL fm_cylinderVolume(REAL radius,REAL h)
+{
+	return FM_PI * radius * radius *h;
+}
+
+REAL fm_capsuleVolume(REAL radius,REAL h)
+{
+	REAL volume = fm_sphereVolume(radius); // volume of the sphere portion.
+	REAL ch = h-radius*2; // this is the cylinder length
+	if ( ch > 0 )
+	{
+		volume+=fm_cylinderVolume(radius,ch);
+	}
+	return volume;
+}
+
+void  fm_transform(const REAL matrix[16],const REAL v[3],REAL t[3]) // rotate and translate this point
+{
+  if ( matrix )
+  {
+	REAL tx = (matrix[0*4+0] * v[0]) +  (matrix[1*4+0] * v[1]) + (matrix[2*4+0] * v[2]) + matrix[3*4+0];
+	REAL ty = (matrix[0*4+1] * v[0]) +  (matrix[1*4+1] * v[1]) + (matrix[2*4+1] * v[2]) + matrix[3*4+1];
+	REAL tz = (matrix[0*4+2] * v[0]) +  (matrix[1*4+2] * v[1]) + (matrix[2*4+2] * v[2]) + matrix[3*4+2];
+	t[0] = tx;
+	t[1] = ty;
+	t[2] = tz;
+  }
+  else
+  {
+	t[0] = v[0];
+	t[1] = v[1];
+	t[2] = v[2];
+  }
+}
+
+void  fm_rotate(const REAL matrix[16],const REAL v[3],REAL t[3]) // rotate and translate this point
+{
+  if ( matrix )
+  {
+	REAL tx = (matrix[0*4+0] * v[0]) +  (matrix[1*4+0] * v[1]) + (matrix[2*4+0] * v[2]);
+	REAL ty = (matrix[0*4+1] * v[0]) +  (matrix[1*4+1] * v[1]) + (matrix[2*4+1] * v[2]);
+	REAL tz = (matrix[0*4+2] * v[0]) +  (matrix[1*4+2] * v[1]) + (matrix[2*4+2] * v[2]);
+	t[0] = tx;
+	t[1] = ty;
+	t[2] = tz;
+  }
+  else
+  {
+	t[0] = v[0];
+	t[1] = v[1];
+	t[2] = v[2];
+  }
+}
+
+
+REAL fm_distance(const REAL *p1,const REAL *p2)
+{
+	REAL dx = p1[0] - p2[0];
+	REAL dy = p1[1] - p2[1];
+	REAL dz = p1[2] - p2[2];
+
+	return (REAL)sqrt( dx*dx + dy*dy + dz *dz );
+}
+
+REAL fm_distanceSquared(const REAL *p1,const REAL *p2)
+{
+	REAL dx = p1[0] - p2[0];
+	REAL dy = p1[1] - p2[1];
+	REAL dz = p1[2] - p2[2];
+
+	return dx*dx + dy*dy + dz *dz;
+}
+
+
+REAL fm_distanceSquaredXZ(const REAL *p1,const REAL *p2)
+{
+	REAL dx = p1[0] - p2[0];
+	REAL dz = p1[2] - p2[2];
+
+	return dx*dx +  dz *dz;
+}
+
+
+REAL fm_computePlane(const REAL *A,const REAL *B,const REAL *C,REAL *n) // returns D
+{
+	REAL vx = (B[0] - C[0]);
+	REAL vy = (B[1] - C[1]);
+	REAL vz = (B[2] - C[2]);
+
+	REAL wx = (A[0] - B[0]);
+	REAL wy = (A[1] - B[1]);
+	REAL wz = (A[2] - B[2]);
+
+	REAL vw_x = vy * wz - vz * wy;
+	REAL vw_y = vz * wx - vx * wz;
+	REAL vw_z = vx * wy - vy * wx;
+
+	REAL mag = (REAL)sqrt((vw_x * vw_x) + (vw_y * vw_y) + (vw_z * vw_z));
+
+	if ( mag < 0.000001f )
+	{
+		mag = 0;
+	}
+	else
+	{
+		mag = 1.0f/mag;
+	}
+
+	REAL x = vw_x * mag;
+	REAL y = vw_y * mag;
+	REAL z = vw_z * mag;
+
+
+	REAL D = 0.0f - ((x*A[0])+(y*A[1])+(z*A[2]));
+
+  n[0] = x;
+  n[1] = y;
+  n[2] = z;
+
+	return D;
+}
+
+REAL fm_distToPlane(const REAL *plane,const REAL *p) // computes the distance of this point from the plane.
+{
+  return p[0]*plane[0]+p[1]*plane[1]+p[2]*plane[2]+plane[3];
+}
+
+REAL fm_dot(const REAL *p1,const REAL *p2)
+{
+  return p1[0]*p2[0]+p1[1]*p2[1]+p1[2]*p2[2];
+}
+
+void fm_cross(REAL *cross,const REAL *a,const REAL *b)
+{
+	cross[0] = a[1]*b[2] - a[2]*b[1];
+	cross[1] = a[2]*b[0] - a[0]*b[2];
+	cross[2] = a[0]*b[1] - a[1]*b[0];
+}
+
+REAL fm_computeNormalVector(REAL *n,const REAL *p1,const REAL *p2)
+{
+  n[0] = p2[0] - p1[0];
+  n[1] = p2[1] - p1[1];
+  n[2] = p2[2] - p1[2];
+  return fm_normalize(n);
+}
+
+bool  fm_computeWindingOrder(const REAL *p1,const REAL *p2,const REAL *p3) // returns true if the triangle is clockwise.
+{
+  bool ret = false;
+
+  REAL v1[3];
+  REAL v2[3];
+
+  fm_computeNormalVector(v1,p1,p2); // p2-p1 (as vector) and then normalized
+  fm_computeNormalVector(v2,p1,p3); // p3-p1 (as vector) and then normalized
+
+  REAL cross[3];
+
+  fm_cross(cross, v1, v2 );
+  REAL ref[3] = { 1, 0, 0 };
+
+  REAL d = fm_dot( cross, ref );
+
+
+  if ( d <= 0 )
+	ret = false;
+  else
+	ret = true;
+
+  return ret;
+}
+
+REAL fm_normalize(REAL *n) // normalize this vector
+{
+  REAL dist = (REAL)sqrt(n[0]*n[0] + n[1]*n[1] + n[2]*n[2]);
+  if ( dist > 0.0000001f )
+  {
+	REAL mag = 1.0f / dist;
+	n[0]*=mag;
+	n[1]*=mag;
+	n[2]*=mag;
+  }
+  else
+  {
+	n[0] = 1;
+	n[1] = 0;
+	n[2] = 0;
+  }
+
+  return dist;
+}
+
+
+void  fm_matrixMultiply(const REAL *pA,const REAL *pB,REAL *pM)
+{
+#if 1
+
+  REAL a = pA[0*4+0] * pB[0*4+0] + pA[0*4+1] * pB[1*4+0] + pA[0*4+2] * pB[2*4+0] + pA[0*4+3] * pB[3*4+0];
+  REAL b = pA[0*4+0] * pB[0*4+1] + pA[0*4+1] * pB[1*4+1] + pA[0*4+2] * pB[2*4+1] + pA[0*4+3] * pB[3*4+1];
+  REAL c = pA[0*4+0] * pB[0*4+2] + pA[0*4+1] * pB[1*4+2] + pA[0*4+2] * pB[2*4+2] + pA[0*4+3] * pB[3*4+2];
+  REAL d = pA[0*4+0] * pB[0*4+3] + pA[0*4+1] * pB[1*4+3] + pA[0*4+2] * pB[2*4+3] + pA[0*4+3] * pB[3*4+3];
+
+  REAL e = pA[1*4+0] * pB[0*4+0] + pA[1*4+1] * pB[1*4+0] + pA[1*4+2] * pB[2*4+0] + pA[1*4+3] * pB[3*4+0];
+  REAL f = pA[1*4+0] * pB[0*4+1] + pA[1*4+1] * pB[1*4+1] + pA[1*4+2] * pB[2*4+1] + pA[1*4+3] * pB[3*4+1];
+  REAL g = pA[1*4+0] * pB[0*4+2] + pA[1*4+1] * pB[1*4+2] + pA[1*4+2] * pB[2*4+2] + pA[1*4+3] * pB[3*4+2];
+  REAL h = pA[1*4+0] * pB[0*4+3] + pA[1*4+1] * pB[1*4+3] + pA[1*4+2] * pB[2*4+3] + pA[1*4+3] * pB[3*4+3];
+
+  REAL i = pA[2*4+0] * pB[0*4+0] + pA[2*4+1] * pB[1*4+0] + pA[2*4+2] * pB[2*4+0] + pA[2*4+3] * pB[3*4+0];
+  REAL j = pA[2*4+0] * pB[0*4+1] + pA[2*4+1] * pB[1*4+1] + pA[2*4+2] * pB[2*4+1] + pA[2*4+3] * pB[3*4+1];
+  REAL k = pA[2*4+0] * pB[0*4+2] + pA[2*4+1] * pB[1*4+2] + pA[2*4+2] * pB[2*4+2] + pA[2*4+3] * pB[3*4+2];
+  REAL l = pA[2*4+0] * pB[0*4+3] + pA[2*4+1] * pB[1*4+3] + pA[2*4+2] * pB[2*4+3] + pA[2*4+3] * pB[3*4+3];
+
+  REAL m = pA[3*4+0] * pB[0*4+0] + pA[3*4+1] * pB[1*4+0] + pA[3*4+2] * pB[2*4+0] + pA[3*4+3] * pB[3*4+0];
+  REAL n = pA[3*4+0] * pB[0*4+1] + pA[3*4+1] * pB[1*4+1] + pA[3*4+2] * pB[2*4+1] + pA[3*4+3] * pB[3*4+1];
+  REAL o = pA[3*4+0] * pB[0*4+2] + pA[3*4+1] * pB[1*4+2] + pA[3*4+2] * pB[2*4+2] + pA[3*4+3] * pB[3*4+2];
+  REAL p = pA[3*4+0] * pB[0*4+3] + pA[3*4+1] * pB[1*4+3] + pA[3*4+2] * pB[2*4+3] + pA[3*4+3] * pB[3*4+3];
+
+  pM[0] = a;
+  pM[1] = b;
+  pM[2] = c;
+  pM[3] = d;
+
+  pM[4] = e;
+  pM[5] = f;
+  pM[6] = g;
+  pM[7] = h;
+
+  pM[8] = i;
+  pM[9] = j;
+  pM[10] = k;
+  pM[11] = l;
+
+  pM[12] = m;
+  pM[13] = n;
+  pM[14] = o;
+  pM[15] = p;
+
+
+#else
+	memset(pM, 0, sizeof(REAL)*16);
+	for(int32_t i=0; i<4; i++ )
+		for(int32_t j=0; j<4; j++ )
+			for(int32_t k=0; k<4; k++ )
+				pM[4*i+j] +=  pA[4*i+k] * pB[4*k+j];
+#endif
+}
+
+
+void  fm_eulerToQuatDX(REAL x,REAL y,REAL z,REAL *quat) // convert euler angles to quaternion using the fucked up DirectX method
+{
+  REAL matrix[16];
+  fm_eulerToMatrix(x,y,z,matrix);
+  fm_matrixToQuat(matrix,quat);
+}
+
+// implementation copied from: http://blogs.msdn.com/mikepelton/archive/2004/10/29/249501.aspx
+void  fm_eulerToMatrixDX(REAL x,REAL y,REAL z,REAL *matrix) // convert euler angles to quaternion using the fucked up DirectX method.
+{
+  fm_identity(matrix);
+  matrix[0*4+0] = (REAL)(cos(z)*cos(y) + sin(z)*sin(x)*sin(y));
+  matrix[0*4+1] = (REAL)(sin(z)*cos(x));
+  matrix[0*4+2] = (REAL)(cos(z)*-sin(y) + sin(z)*sin(x)*cos(y));
+
+  matrix[1*4+0] = (REAL)(-sin(z)*cos(y)+cos(z)*sin(x)*sin(y));
+  matrix[1*4+1] = (REAL)(cos(z)*cos(x));
+  matrix[1*4+2] = (REAL)(sin(z)*sin(y) +cos(z)*sin(x)*cos(y));
+
+  matrix[2*4+0] = (REAL)(cos(x)*sin(y));
+  matrix[2*4+1] = (REAL)(-sin(x));
+  matrix[2*4+2] = (REAL)(cos(x)*cos(y));
+}
+
+
+void  fm_scale(REAL x,REAL y,REAL z,REAL *fscale) // apply scale to the matrix.
+{
+  fscale[0*4+0] = x;
+  fscale[1*4+1] = y;
+  fscale[2*4+2] = z;
+}
+
+
+void  fm_composeTransform(const REAL *position,const REAL *quat,const REAL *scale,REAL *matrix)
+{
+  fm_identity(matrix);
+  fm_quatToMatrix(quat,matrix);
+
+  if ( scale && ( scale[0] != 1 || scale[1] != 1 || scale[2] != 1 ) )
+  {
+	REAL work[16];
+	memcpy(work,matrix,sizeof(REAL)*16);
+	REAL mscale[16];
+	fm_identity(mscale);
+	fm_scale(scale[0],scale[1],scale[2],mscale);
+	fm_matrixMultiply(work,mscale,matrix);
+  }
+
+  matrix[12] = position[0];
+  matrix[13] = position[1];
+  matrix[14] = position[2];
+}
+
+
+void  fm_setTranslation(const REAL *translation,REAL *matrix)
+{
+  matrix[12] = translation[0];
+  matrix[13] = translation[1];
+  matrix[14] = translation[2];
+}
+
+static REAL enorm0_3d ( REAL x0, REAL y0, REAL z0, REAL x1, REAL y1, REAL z1 )
+
+/**********************************************************************/
+
+/*
+Purpose:
+
+ENORM0_3D computes the Euclidean norm of (P1-P0) in 3D.
+
+Modified:
+
+18 April 1999
+
+Author:
+
+John Burkardt
+
+Parameters:
+
+Input, REAL X0, Y0, Z0, X1, Y1, Z1, the coordinates of the points 
+P0 and P1.
+
+Output, REAL ENORM0_3D, the Euclidean norm of (P1-P0).
+*/
+{
+  REAL value;
+
+  value = (REAL)sqrt (
+	( x1 - x0 ) * ( x1 - x0 ) + 
+	( y1 - y0 ) * ( y1 - y0 ) + 
+	( z1 - z0 ) * ( z1 - z0 ) );
+
+  return value;
+}
+
+
+static REAL triangle_area_3d ( REAL x1, REAL y1, REAL z1, REAL x2,REAL y2, REAL z2, REAL x3, REAL y3, REAL z3 )
+
+						/**********************************************************************/
+
+						/*
+						Purpose:
+
+						TRIANGLE_AREA_3D computes the area of a triangle in 3D.
+
+						Modified:
+
+						22 April 1999
+
+						Author:
+
+						John Burkardt
+
+						Parameters:
+
+						Input, REAL X1, Y1, Z1, X2, Y2, Z2, X3, Y3, Z3, the (X,Y,Z)
+						coordinates of the corners of the triangle.
+
+						Output, REAL TRIANGLE_AREA_3D, the area of the triangle.
+						*/
+{
+  REAL a;
+  REAL alpha;
+  REAL area;
+  REAL b;
+  REAL base;
+  REAL c;
+  REAL dot;
+  REAL height;
+  /*
+  Find the projection of (P3-P1) onto (P2-P1).
+  */
+  dot = 
+	( x2 - x1 ) * ( x3 - x1 ) +
+	( y2 - y1 ) * ( y3 - y1 ) +
+	( z2 - z1 ) * ( z3 - z1 );
+
+  base = enorm0_3d ( x1, y1, z1, x2, y2, z2 );
+  /*
+  The height of the triangle is the length of (P3-P1) after its
+  projection onto (P2-P1) has been subtracted.
+  */
+  if ( base == 0.0 ) {
+
+	height = 0.0;
+
+  }
+  else {
+
+	alpha = dot / ( base * base );
+
+	a = x3 - x1 - alpha * ( x2 - x1 );
+	b = y3 - y1 - alpha * ( y2 - y1 );
+	c = z3 - z1 - alpha * ( z2 - z1 );
+
+	height = (REAL)sqrt ( a * a + b * b + c * c );
+
+  }
+
+  area = 0.5f * base * height;
+
+  return area;
+}
+
+
+REAL fm_computeArea(const REAL *p1,const REAL *p2,const REAL *p3)
+{
+  REAL ret = 0;
+
+  ret = triangle_area_3d(p1[0],p1[1],p1[2],p2[0],p2[1],p2[2],p3[0],p3[1],p3[2]);
+
+  return ret;
+}
+
+
+void  fm_lerp(const REAL *p1,const REAL *p2,REAL *dest,REAL lerpValue)
+{
+  dest[0] = ((p2[0] - p1[0])*lerpValue) + p1[0];
+  dest[1] = ((p2[1] - p1[1])*lerpValue) + p1[1];
+  dest[2] = ((p2[2] - p1[2])*lerpValue) + p1[2];
+}
+
+bool fm_pointTestXZ(const REAL *p,const REAL *i,const REAL *j)
+{
+  bool ret = false;
+
+  if (((( i[2] <= p[2] ) && ( p[2]  < j[2] )) || (( j[2] <= p[2] ) && ( p[2]  < i[2] ))) && ( p[0] < (j[0] - i[0]) * (p[2] - i[2]) / (j[2] - i[2]) + i[0]))
+	ret = true;
+
+  return ret;
+};
+
+
+bool  fm_insideTriangleXZ(const REAL *p,const REAL *p1,const REAL *p2,const REAL *p3)
+{
+  bool ret = false;
+
+  int32_t c = 0;
+  if ( fm_pointTestXZ(p,p1,p2) ) c = !c;
+  if ( fm_pointTestXZ(p,p2,p3) ) c = !c;
+  if ( fm_pointTestXZ(p,p3,p1) ) c = !c;
+  if ( c ) ret = true;
+
+  return ret;
+}
+
+bool  fm_insideAABB(const REAL *pos,const REAL *bmin,const REAL *bmax)
+{
+  bool ret = false;
+
+  if ( pos[0] >= bmin[0] && pos[0] <= bmax[0] &&
+	   pos[1] >= bmin[1] && pos[1] <= bmax[1] &&
+	   pos[2] >= bmin[2] && pos[2] <= bmax[2] )
+	ret = true;
+
+  return ret;
+}
+
+
+uint32_t fm_clipTestPoint(const REAL *bmin,const REAL *bmax,const REAL *pos)
+{
+  uint32_t ret = 0;
+
+  if ( pos[0] < bmin[0] )
+	ret|=FMCS_XMIN;
+  else if ( pos[0] > bmax[0] )
+	ret|=FMCS_XMAX;
+
+  if ( pos[1] < bmin[1] )
+	ret|=FMCS_YMIN;
+  else if ( pos[1] > bmax[1] )
+	ret|=FMCS_YMAX;
+
+  if ( pos[2] < bmin[2] )
+	ret|=FMCS_ZMIN;
+  else if ( pos[2] > bmax[2] )
+	ret|=FMCS_ZMAX;
+
+  return ret;
+}
+
+uint32_t fm_clipTestPointXZ(const REAL *bmin,const REAL *bmax,const REAL *pos) // only tests X and Z, not Y
+{
+  uint32_t ret = 0;
+
+  if ( pos[0] < bmin[0] )
+	ret|=FMCS_XMIN;
+  else if ( pos[0] > bmax[0] )
+	ret|=FMCS_XMAX;
+
+  if ( pos[2] < bmin[2] )
+	ret|=FMCS_ZMIN;
+  else if ( pos[2] > bmax[2] )
+	ret|=FMCS_ZMAX;
+
+  return ret;
+}
+
+uint32_t fm_clipTestAABB(const REAL *bmin,const REAL *bmax,const REAL *p1,const REAL *p2,const REAL *p3,uint32_t &andCode)
+{
+  uint32_t orCode = 0;
+
+  andCode = FMCS_XMIN | FMCS_XMAX | FMCS_YMIN | FMCS_YMAX | FMCS_ZMIN | FMCS_ZMAX;
+
+  uint32_t c = fm_clipTestPoint(bmin,bmax,p1);
+  orCode|=c;
+  andCode&=c;
+
+  c = fm_clipTestPoint(bmin,bmax,p2);
+  orCode|=c;
+  andCode&=c;
+
+  c = fm_clipTestPoint(bmin,bmax,p3);
+  orCode|=c;
+  andCode&=c;
+
+  return orCode;
+}
+
+bool intersect(const REAL *si,const REAL *ei,const REAL *bmin,const REAL *bmax,REAL *time)
+{
+  REAL st,et,fst = 0,fet = 1;
+
+  for (int32_t i = 0; i < 3; i++)
+  {
+	if (*si < *ei)
+	{
+	  if (*si > *bmax || *ei < *bmin)
+		return false;
+	  REAL di = *ei - *si;
+	  st = (*si < *bmin)? (*bmin - *si) / di: 0;
+	  et = (*ei > *bmax)? (*bmax - *si) / di: 1;
+	}
+	else
+	{
+	  if (*ei > *bmax || *si < *bmin)
+		return false;
+	  REAL di = *ei - *si;
+	  st = (*si > *bmax)? (*bmax - *si) / di: 0;
+	  et = (*ei < *bmin)? (*bmin - *si) / di: 1;
+	}
+
+	if (st > fst) fst = st;
+	if (et < fet) fet = et;
+	if (fet < fst)
+	  return false;
+	bmin++; bmax++;
+	si++; ei++;
+  }
+
+  *time = fst;
+  return true;
+}
+
+
+
+bool fm_lineTestAABB(const REAL *p1,const REAL *p2,const REAL *bmin,const REAL *bmax,REAL &time)
+{
+  bool sect = intersect(p1,p2,bmin,bmax,&time);
+  return sect;
+}
+
+
+bool fm_lineTestAABBXZ(const REAL *p1,const REAL *p2,const REAL *bmin,const REAL *bmax,REAL &time)
+{
+  REAL _bmin[3];
+  REAL _bmax[3];
+
+  _bmin[0] = bmin[0];
+  _bmin[1] = -1e9;
+  _bmin[2] = bmin[2];
+
+  _bmax[0] = bmax[0];
+  _bmax[1] = 1e9;
+  _bmax[2] = bmax[2];
+
+  bool sect = intersect(p1,p2,_bmin,_bmax,&time);
+
+  return sect;
+}
+
+void  fm_minmax(const REAL *p,REAL *bmin,REAL *bmax) // accmulate to a min-max value
+{
+
+  if ( p[0] < bmin[0] ) bmin[0] = p[0];
+  if ( p[1] < bmin[1] ) bmin[1] = p[1];
+  if ( p[2] < bmin[2] ) bmin[2] = p[2];
+
+  if ( p[0] > bmax[0] ) bmax[0] = p[0];
+  if ( p[1] > bmax[1] ) bmax[1] = p[1];
+  if ( p[2] > bmax[2] ) bmax[2] = p[2];
+
+}
+
+REAL fm_solveX(const REAL *plane,REAL y,REAL z) // solve for X given this plane equation and the other two components.
+{
+  REAL x = (y*plane[1]+z*plane[2]+plane[3]) / -plane[0];
+  return x;
+}
+
+REAL fm_solveY(const REAL *plane,REAL x,REAL z) // solve for Y given this plane equation and the other two components.
+{
+  REAL y = (x*plane[0]+z*plane[2]+plane[3]) / -plane[1];
+  return y;
+}
+
+
+REAL fm_solveZ(const REAL *plane,REAL x,REAL y) // solve for Y given this plane equation and the other two components.
+{
+  REAL z = (x*plane[0]+y*plane[1]+plane[3]) / -plane[2];
+  return z;
+}
+
+
+void  fm_getAABBCenter(const REAL *bmin,const REAL *bmax,REAL *center)
+{
+  center[0] = (bmax[0]-bmin[0])*0.5f+bmin[0];
+  center[1] = (bmax[1]-bmin[1])*0.5f+bmin[1];
+  center[2] = (bmax[2]-bmin[2])*0.5f+bmin[2];
+}
+
+FM_Axis fm_getDominantAxis(const REAL normal[3])
+{
+  FM_Axis ret = FM_XAXIS;
+
+  REAL x = (REAL)fabs(normal[0]);
+  REAL y = (REAL)fabs(normal[1]);
+  REAL z = (REAL)fabs(normal[2]);
+
+  if ( y > x && y > z )
+	ret = FM_YAXIS;
+  else if ( z > x && z > y )
+	ret = FM_ZAXIS;
+
+  return ret;
+}
+
+
+bool fm_lineSphereIntersect(const REAL *center,REAL radius,const REAL *p1,const REAL *p2,REAL *intersect)
+{
+  bool ret = false;
+
+  REAL dir[3];
+
+  dir[0] = p2[0]-p1[0];
+  dir[1] = p2[1]-p1[1];
+  dir[2] = p2[2]-p1[2];
+
+  REAL distance = (REAL)sqrt( dir[0]*dir[0]+dir[1]*dir[1]+dir[2]*dir[2]);
+
+  if ( distance > 0 )
+  {
+	REAL recip = 1.0f / distance;
+	dir[0]*=recip;
+	dir[1]*=recip;
+	dir[2]*=recip;
+	ret = fm_raySphereIntersect(center,radius,p1,dir,distance,intersect);
+  }
+  else
+  {
+	dir[0] = center[0]-p1[0];
+	dir[1] = center[1]-p1[1];
+	dir[2] = center[2]-p1[2];
+	REAL d2 = dir[0]*dir[0]+dir[1]*dir[1]+dir[2]*dir[2];
+	REAL r2 = radius*radius;
+	if ( d2 < r2 )
+	{
+	  ret = true;
+	  if ( intersect )
+	  {
+		intersect[0] = p1[0];
+		intersect[1] = p1[1];
+		intersect[2] = p1[2];
+	  }
+	}
+  }
+  return ret;
+}
+
+#define DOT(p1,p2) (p1[0]*p2[0]+p1[1]*p2[1]+p1[2]*p2[2])
+
+bool fm_raySphereIntersect(const REAL *center,REAL radius,const REAL *pos,const REAL *dir,REAL distance,REAL *intersect)
+{
+  bool ret = false;
+
+  REAL E0[3];
+
+  E0[0] = center[0] - pos[0];
+  E0[1] = center[1] - pos[1];
+  E0[2] = center[2] - pos[2];
+
+  REAL V[3];
+
+  V[0]  = dir[0];
+  V[1]  = dir[1];
+  V[2]  = dir[2];
+
+
+  REAL dist2   = E0[0]*E0[0] + E0[1]*E0[1] + E0[2] * E0[2];
+  REAL radius2 = radius*radius; // radius squared..
+
+  // Bug Fix For Gem, if origin is *inside* the sphere, invert the
+  // direction vector so that we get a valid intersection location.
+  if ( dist2 < radius2 )
+  {
+	V[0]*=-1;
+	V[1]*=-1;
+	V[2]*=-1;
+  }
+
+
+	REAL v = DOT(E0,V);
+
+	REAL disc = radius2 - (dist2 - v*v);
+
+	if (disc > 0.0f)
+	{
+		if ( intersect )
+		{
+		  REAL d = (REAL)sqrt(disc);
+	  REAL diff = v-d;
+	  if ( diff < distance )
+	  {
+		intersect[0] = pos[0]+V[0]*diff;
+		intersect[1] = pos[1]+V[1]*diff;
+		intersect[2] = pos[2]+V[2]*diff;
+		ret = true;
+	  }
+	}
+	}
+
+	return ret;
+}
+
+
+void fm_catmullRom(REAL *out_vector,const REAL *p1,const REAL *p2,const REAL *p3,const REAL *p4, const REAL s)
+{
+  REAL s_squared = s * s;
+  REAL s_cubed = s_squared * s;
+
+  REAL coefficient_p1 = -s_cubed + 2*s_squared - s;
+  REAL coefficient_p2 = 3 * s_cubed - 5 * s_squared + 2;
+  REAL coefficient_p3 = -3 * s_cubed +4 * s_squared + s;
+  REAL coefficient_p4 = s_cubed - s_squared;
+
+  out_vector[0] = (coefficient_p1 * p1[0] + coefficient_p2 * p2[0] + coefficient_p3 * p3[0] + coefficient_p4 * p4[0])*0.5f;
+  out_vector[1] = (coefficient_p1 * p1[1] + coefficient_p2 * p2[1] + coefficient_p3 * p3[1] + coefficient_p4 * p4[1])*0.5f;
+  out_vector[2] = (coefficient_p1 * p1[2] + coefficient_p2 * p2[2] + coefficient_p3 * p3[2] + coefficient_p4 * p4[2])*0.5f;
+}
+
+bool fm_intersectAABB(const REAL *bmin1,const REAL *bmax1,const REAL *bmin2,const REAL *bmax2)
+{
+  if ((bmin1[0] > bmax2[0]) || (bmin2[0] > bmax1[0])) return false;
+  if ((bmin1[1] > bmax2[1]) || (bmin2[1] > bmax1[1])) return false;
+  if ((bmin1[2] > bmax2[2]) || (bmin2[2] > bmax1[2])) return false;
+  return true;
+
+}
+
+bool  fm_insideAABB(const REAL *obmin,const REAL *obmax,const REAL *tbmin,const REAL *tbmax) // test if bounding box tbmin/tmbax is fully inside obmin/obmax
+{
+  bool ret = false;
+
+  if ( tbmax[0] <= obmax[0] &&
+	   tbmax[1] <= obmax[1] &&
+	   tbmax[2] <= obmax[2] &&
+	   tbmin[0] >= obmin[0] &&
+	   tbmin[1] >= obmin[1] &&
+	   tbmin[2] >= obmin[2] ) ret = true;
+
+  return ret;
+}
+
+
+// Reference, from Stan Melax in Game Gems I
+//  Quaternion q;
+//  vector3 c = CrossProduct(v0,v1);
+//  REAL   d = DotProduct(v0,v1);
+//  REAL   s = (REAL)sqrt((1+d)*2);
+//  q.x = c.x / s;
+//  q.y = c.y / s;
+//  q.z = c.z / s;
+//  q.w = s /2.0f;
+//  return q;
+void fm_rotationArc(const REAL *v0,const REAL *v1,REAL *quat)
+{
+  REAL cross[3];
+
+  fm_cross(cross,v0,v1);
+  REAL d = fm_dot(v0,v1);
+
+  if( d<= -0.99999f ) // 180 about x axis
+  {
+	  if ( fabsf((float)v0[0]) < 0.1f )
+	  {
+		  quat[0] = 0;
+		  quat[1] = v0[2];
+		  quat[2] = -v0[1];
+		  quat[3] = 0;
+	  }
+	  else
+	  {
+		  quat[0] = v0[1];
+		  quat[1] = -v0[0];
+		  quat[2] = 0;
+		  quat[3] = 0;
+	  }
+	  REAL magnitudeSquared = quat[0]*quat[0] + quat[1]*quat[1] + quat[2]*quat[2] + quat[3]*quat[3];
+	  REAL magnitude = sqrtf((float)magnitudeSquared);
+	  REAL recip = 1.0f / magnitude;
+	  quat[0]*=recip;
+	  quat[1]*=recip;
+	  quat[2]*=recip;
+	  quat[3]*=recip;
+  }
+  else
+  {
+	  REAL s = (REAL)sqrt((1+d)*2);
+	  REAL recip = 1.0f / s;
+
+	  quat[0] = cross[0] * recip;
+	  quat[1] = cross[1] * recip;
+	  quat[2] = cross[2] * recip;
+	  quat[3] = s * 0.5f;
+  }
+}
+
+
+REAL fm_distancePointLineSegment(const REAL *Point,const REAL *LineStart,const REAL *LineEnd,REAL *intersection,LineSegmentType &type,REAL epsilon)
+{
+  REAL ret;
+
+  REAL LineMag = fm_distance( LineEnd, LineStart );
+
+  if ( LineMag > 0 )
+  {
+	REAL U = ( ( ( Point[0] - LineStart[0] ) * ( LineEnd[0] - LineStart[0] ) ) + ( ( Point[1] - LineStart[1] ) * ( LineEnd[1] - LineStart[1] ) ) + ( ( Point[2] - LineStart[2] ) * ( LineEnd[2] - LineStart[2] ) ) ) / ( LineMag * LineMag );
+	if( U < 0.0f || U > 1.0f )
+	{
+	  REAL d1 = fm_distanceSquared(Point,LineStart);
+	  REAL d2 = fm_distanceSquared(Point,LineEnd);
+	  if ( d1 <= d2 )
+	  {
+		ret = (REAL)sqrt(d1);
+		intersection[0] = LineStart[0];
+		intersection[1] = LineStart[1];
+		intersection[2] = LineStart[2];
+		type = LS_START;
+	  }
+	  else
+	  {
+		ret = (REAL)sqrt(d2);
+		intersection[0] = LineEnd[0];
+		intersection[1] = LineEnd[1];
+		intersection[2] = LineEnd[2];
+		type = LS_END;
+	  }
+	}
+	else
+	{
+	  intersection[0] = LineStart[0] + U * ( LineEnd[0] - LineStart[0] );
+	  intersection[1] = LineStart[1] + U * ( LineEnd[1] - LineStart[1] );
+	  intersection[2] = LineStart[2] + U * ( LineEnd[2] - LineStart[2] );
+
+	  ret = fm_distance(Point,intersection);
+
+	  REAL d1 = fm_distanceSquared(intersection,LineStart);
+	  REAL d2 = fm_distanceSquared(intersection,LineEnd);
+	  REAL mag = (epsilon*2)*(epsilon*2);
+
+	  if ( d1 < mag ) // if less than 1/100th the total distance, treat is as the 'start'
+	  {
+		type = LS_START;
+	  }
+	  else if ( d2 < mag )
+	  {
+		type = LS_END;
+	  }
+	  else
+	  {
+		type = LS_MIDDLE;
+	  }
+
+	}
+  }
+  else
+  {
+	ret = LineMag;
+	intersection[0] = LineEnd[0];
+	intersection[1] = LineEnd[1];
+	intersection[2] = LineEnd[2];
+	type = LS_END;
+  }
+
+  return ret;
+}
+
+
+#ifndef BEST_FIT_PLANE_H
+
+#define BEST_FIT_PLANE_H
+
+template <class Type> class Eigen
+{
+public:
+
+
+  void DecrSortEigenStuff(void)
+  {
+	Tridiagonal(); //diagonalize the matrix.
+	QLAlgorithm(); //
+	DecreasingSort();
+	GuaranteeRotation();
+  }
+
+  void Tridiagonal(void)
+  {
+	Type fM00 = mElement[0][0];
+	Type fM01 = mElement[0][1];
+	Type fM02 = mElement[0][2];
+	Type fM11 = mElement[1][1];
+	Type fM12 = mElement[1][2];
+	Type fM22 = mElement[2][2];
+
+	m_afDiag[0] = fM00;
+	m_afSubd[2] = 0;
+	if (fM02 != (Type)0.0)
+	{
+	  Type fLength = (REAL)sqrt(fM01*fM01+fM02*fM02);
+	  Type fInvLength = ((Type)1.0)/fLength;
+	  fM01 *= fInvLength;
+	  fM02 *= fInvLength;
+	  Type fQ = ((Type)2.0)*fM01*fM12+fM02*(fM22-fM11);
+	  m_afDiag[1] = fM11+fM02*fQ;
+	  m_afDiag[2] = fM22-fM02*fQ;
+	  m_afSubd[0] = fLength;
+	  m_afSubd[1] = fM12-fM01*fQ;
+	  mElement[0][0] = (Type)1.0;
+	  mElement[0][1] = (Type)0.0;
+	  mElement[0][2] = (Type)0.0;
+	  mElement[1][0] = (Type)0.0;
+	  mElement[1][1] = fM01;
+	  mElement[1][2] = fM02;
+	  mElement[2][0] = (Type)0.0;
+	  mElement[2][1] = fM02;
+	  mElement[2][2] = -fM01;
+	  m_bIsRotation = false;
+	}
+	else
+	{
+	  m_afDiag[1] = fM11;
+	  m_afDiag[2] = fM22;
+	  m_afSubd[0] = fM01;
+	  m_afSubd[1] = fM12;
+	  mElement[0][0] = (Type)1.0;
+	  mElement[0][1] = (Type)0.0;
+	  mElement[0][2] = (Type)0.0;
+	  mElement[1][0] = (Type)0.0;
+	  mElement[1][1] = (Type)1.0;
+	  mElement[1][2] = (Type)0.0;
+	  mElement[2][0] = (Type)0.0;
+	  mElement[2][1] = (Type)0.0;
+	  mElement[2][2] = (Type)1.0;
+	  m_bIsRotation = true;
+	}
+  }
+
+  bool QLAlgorithm(void)
+  {
+	const int32_t iMaxIter = 32;
+
+	for (int32_t i0 = 0; i0 <3; i0++)
+	{
+	  int32_t i1;
+	  for (i1 = 0; i1 < iMaxIter; i1++)
+	  {
+		int32_t i2;
+		for (i2 = i0; i2 <= (3-2); i2++)
+		{
+		  Type fTmp = fabs(m_afDiag[i2]) + fabs(m_afDiag[i2+1]);
+		  if ( fabs(m_afSubd[i2]) + fTmp == fTmp )
+			break;
+		}
+		if (i2 == i0)
+		{
+		  break;
+		}
+
+		Type fG = (m_afDiag[i0+1] - m_afDiag[i0])/(((Type)2.0) * m_afSubd[i0]);
+		Type fR = (REAL)sqrt(fG*fG+(Type)1.0);
+		if (fG < (Type)0.0)
+		{
+		  fG = m_afDiag[i2]-m_afDiag[i0]+m_afSubd[i0]/(fG-fR);
+		}
+		else
+		{
+		  fG = m_afDiag[i2]-m_afDiag[i0]+m_afSubd[i0]/(fG+fR);
+		}
+		Type fSin = (Type)1.0, fCos = (Type)1.0, fP = (Type)0.0;
+		for (int32_t i3 = i2-1; i3 >= i0; i3--)
+		{
+		  Type fF = fSin*m_afSubd[i3];
+		  Type fB = fCos*m_afSubd[i3];
+		  if (fabs(fF) >= fabs(fG))
+		  {
+			fCos = fG/fF;
+			fR = (REAL)sqrt(fCos*fCos+(Type)1.0);
+			m_afSubd[i3+1] = fF*fR;
+			fSin = ((Type)1.0)/fR;
+			fCos *= fSin;
+		  }
+		  else
+		  {
+			fSin = fF/fG;
+			fR = (REAL)sqrt(fSin*fSin+(Type)1.0);
+			m_afSubd[i3+1] = fG*fR;
+			fCos = ((Type)1.0)/fR;
+			fSin *= fCos;
+		  }
+		  fG = m_afDiag[i3+1]-fP;
+		  fR = (m_afDiag[i3]-fG)*fSin+((Type)2.0)*fB*fCos;
+		  fP = fSin*fR;
+		  m_afDiag[i3+1] = fG+fP;
+		  fG = fCos*fR-fB;
+		  for (int32_t i4 = 0; i4 < 3; i4++)
+		  {
+			fF = mElement[i4][i3+1];
+			mElement[i4][i3+1] = fSin*mElement[i4][i3]+fCos*fF;
+			mElement[i4][i3] = fCos*mElement[i4][i3]-fSin*fF;
+		  }
+		}
+		m_afDiag[i0] -= fP;
+		m_afSubd[i0] = fG;
+		m_afSubd[i2] = (Type)0.0;
+	  }
+	  if (i1 == iMaxIter)
+	  {
+		return false;
+	  }
+	}
+	return true;
+  }
+
+  void DecreasingSort(void)
+  {
+	//sort eigenvalues in decreasing order, e[0] >= ... >= e[iSize-1]
+	for (int32_t i0 = 0, i1; i0 <= 3-2; i0++)
+	{
+	  // locate maximum eigenvalue
+	  i1 = i0;
+	  Type fMax = m_afDiag[i1];
+	  int32_t i2;
+	  for (i2 = i0+1; i2 < 3; i2++)
+	  {
+		if (m_afDiag[i2] > fMax)
+		{
+		  i1 = i2;
+		  fMax = m_afDiag[i1];
+		}
+	  }
+
+	  if (i1 != i0)
+	  {
+		// swap eigenvalues
+		m_afDiag[i1] = m_afDiag[i0];
+		m_afDiag[i0] = fMax;
+		// swap eigenvectors
+		for (i2 = 0; i2 < 3; i2++)
+		{
+		  Type fTmp = mElement[i2][i0];
+		  mElement[i2][i0] = mElement[i2][i1];
+		  mElement[i2][i1] = fTmp;
+		  m_bIsRotation = !m_bIsRotation;
+		}
+	  }
+	}
+  }
+
+
+  void GuaranteeRotation(void)
+  {
+	if (!m_bIsRotation)
+	{
+	  // change sign on the first column
+	  for (int32_t iRow = 0; iRow <3; iRow++)
+	  {
+		mElement[iRow][0] = -mElement[iRow][0];
+	  }
+	}
+  }
+
+  Type mElement[3][3];
+  Type m_afDiag[3];
+  Type m_afSubd[3];
+  bool m_bIsRotation;
+};
+
+#endif
+
+bool fm_computeBestFitPlane(uint32_t vcount,
+					 const REAL *points,
+					 uint32_t vstride,
+					 const REAL *weights,
+					 uint32_t wstride,
+					 REAL *plane,
+					REAL *center)
+{
+  bool ret = false;
+
+  REAL kOrigin[3] = { 0, 0, 0 };
+
+  REAL wtotal = 0;
+
+  {
+	const char *source  = (const char *) points;
+	const char *wsource = (const char *) weights;
+
+	for (uint32_t i=0; i<vcount; i++)
+	{
+
+	  const REAL *p = (const REAL *) source;
+
+	  REAL w = 1;
+
+	  if ( wsource )
+	  {
+		const REAL *ws = (const REAL *) wsource;
+		w = *ws; //
+		wsource+=wstride;
+	  }
+
+	  kOrigin[0]+=p[0]*w;
+	  kOrigin[1]+=p[1]*w;
+	  kOrigin[2]+=p[2]*w;
+
+	  wtotal+=w;
+
+	  source+=vstride;
+	}
+  }
+
+  REAL recip = 1.0f / wtotal; // reciprocol of total weighting
+
+  kOrigin[0]*=recip;
+  kOrigin[1]*=recip;
+  kOrigin[2]*=recip;
+
+  center[0] = kOrigin[0];
+  center[1] = kOrigin[1];
+  center[2] = kOrigin[2];
+
+
+  REAL fSumXX=0;
+  REAL fSumXY=0;
+  REAL fSumXZ=0;
+
+  REAL fSumYY=0;
+  REAL fSumYZ=0;
+  REAL fSumZZ=0;
+
+
+  {
+	const char *source  = (const char *) points;
+	const char *wsource = (const char *) weights;
+
+	for (uint32_t i=0; i<vcount; i++)
+	{
+
+	  const REAL *p = (const REAL *) source;
+
+	  REAL w = 1;
+
+	  if ( wsource )
+	  {
+		const REAL *ws = (const REAL *) wsource;
+		w = *ws; //
+		wsource+=wstride;
+	  }
+
+	  REAL kDiff[3];
+
+	  kDiff[0] = w*(p[0] - kOrigin[0]); // apply vertex weighting!
+	  kDiff[1] = w*(p[1] - kOrigin[1]);
+	  kDiff[2] = w*(p[2] - kOrigin[2]);
+
+	  fSumXX+= kDiff[0] * kDiff[0]; // sume of the squares of the differences.
+	  fSumXY+= kDiff[0] * kDiff[1]; // sume of the squares of the differences.
+	  fSumXZ+= kDiff[0] * kDiff[2]; // sume of the squares of the differences.
+
+	  fSumYY+= kDiff[1] * kDiff[1];
+	  fSumYZ+= kDiff[1] * kDiff[2];
+	  fSumZZ+= kDiff[2] * kDiff[2];
+
+
+	  source+=vstride;
+	}
+  }
+
+  fSumXX *= recip;
+  fSumXY *= recip;
+  fSumXZ *= recip;
+  fSumYY *= recip;
+  fSumYZ *= recip;
+  fSumZZ *= recip;
+
+  // setup the eigensolver
+  Eigen<REAL> kES;
+
+  kES.mElement[0][0] = fSumXX;
+  kES.mElement[0][1] = fSumXY;
+  kES.mElement[0][2] = fSumXZ;
+
+  kES.mElement[1][0] = fSumXY;
+  kES.mElement[1][1] = fSumYY;
+  kES.mElement[1][2] = fSumYZ;
+
+  kES.mElement[2][0] = fSumXZ;
+  kES.mElement[2][1] = fSumYZ;
+  kES.mElement[2][2] = fSumZZ;
+
+  // compute eigenstuff, smallest eigenvalue is in last position
+  kES.DecrSortEigenStuff();
+
+  REAL kNormal[3];
+
+  kNormal[0] = kES.mElement[0][2];
+  kNormal[1] = kES.mElement[1][2];
+  kNormal[2] = kES.mElement[2][2];
+
+  // the minimum energy
+  plane[0] = kNormal[0];
+  plane[1] = kNormal[1];
+  plane[2] = kNormal[2];
+
+  plane[3] = 0 - fm_dot(kNormal,kOrigin);
+
+  ret = true;
+
+  return ret;
+}
+
+
+bool fm_colinear(const REAL a1[3],const REAL a2[3],const REAL b1[3],const REAL b2[3],REAL epsilon)  // true if these two line segments are co-linear.
+{
+  bool ret = false;
+
+  REAL dir1[3];
+  REAL dir2[3];
+
+  dir1[0] = (a2[0] - a1[0]);
+  dir1[1] = (a2[1] - a1[1]);
+  dir1[2] = (a2[2] - a1[2]);
+
+  dir2[0] = (b2[0]-a1[0]) - (b1[0]-a1[0]);
+  dir2[1] = (b2[1]-a1[1]) - (b1[1]-a1[1]);
+  dir2[2] = (b2[2]-a2[2]) - (b1[2]-a2[2]);
+
+  fm_normalize(dir1);
+  fm_normalize(dir2);
+
+  REAL dot = fm_dot(dir1,dir2);
+
+  if ( dot >= epsilon )
+  {
+	ret = true;
+  }
+
+
+  return ret;
+}
+
+bool fm_colinear(const REAL *p1,const REAL *p2,const REAL *p3,REAL epsilon)
+{
+  bool ret = false;
+
+  REAL dir1[3];
+  REAL dir2[3];
+
+  dir1[0] = p2[0] - p1[0];
+  dir1[1] = p2[1] - p1[1];
+  dir1[2] = p2[2] - p1[2];
+
+  dir2[0] = p3[0] - p2[0];
+  dir2[1] = p3[1] - p2[1];
+  dir2[2] = p3[2] - p2[2];
+
+  fm_normalize(dir1);
+  fm_normalize(dir2);
+
+  REAL dot = fm_dot(dir1,dir2);
+
+  if ( dot >= epsilon )
+  {
+	ret = true;
+  }
+
+
+  return ret;
+}
+
+void  fm_initMinMax(const REAL *p,REAL *bmin,REAL *bmax)
+{
+  bmax[0] = bmin[0] = p[0];
+  bmax[1] = bmin[1] = p[1];
+  bmax[2] = bmin[2] = p[2];
+}
+
+IntersectResult fm_intersectLineSegments2d(const REAL *a1,const REAL *a2,const REAL *b1,const REAL *b2,REAL *intersection)
+{
+  IntersectResult ret;
+
+  REAL denom  = ((b2[1] - b1[1])*(a2[0] - a1[0])) - ((b2[0] - b1[0])*(a2[1] - a1[1]));
+  REAL nume_a = ((b2[0] - b1[0])*(a1[1] - b1[1])) - ((b2[1] - b1[1])*(a1[0] - b1[0]));
+  REAL nume_b = ((a2[0] - a1[0])*(a1[1] - b1[1])) - ((a2[1] - a1[1])*(a1[0] - b1[0]));
+  if (denom == 0 )
+  {
+	if(nume_a == 0 && nume_b == 0)
+	{
+	  ret = IR_COINCIDENT;
+	}
+	else
+	{
+	  ret = IR_PARALLEL;
+	}
+  }
+  else
+  {
+
+	REAL recip = 1 / denom;
+	REAL ua = nume_a * recip;
+	REAL ub = nume_b * recip;
+
+	if(ua >= 0 && ua <= 1 && ub >= 0 && ub <= 1 )
+	{
+	  // Get the intersection point.
+	  intersection[0] = a1[0] + ua*(a2[0] - a1[0]);
+	  intersection[1] = a1[1] + ua*(a2[1] - a1[1]);
+	  ret = IR_DO_INTERSECT;
+	}
+	else
+	{
+	  ret = IR_DONT_INTERSECT;
+	}
+  }
+  return ret;
+}
+
+IntersectResult fm_intersectLineSegments2dTime(const REAL *a1,const REAL *a2,const REAL *b1,const REAL *b2,REAL &t1,REAL &t2)
+{
+  IntersectResult ret;
+
+  REAL denom  = ((b2[1] - b1[1])*(a2[0] - a1[0])) - ((b2[0] - b1[0])*(a2[1] - a1[1]));
+  REAL nume_a = ((b2[0] - b1[0])*(a1[1] - b1[1])) - ((b2[1] - b1[1])*(a1[0] - b1[0]));
+  REAL nume_b = ((a2[0] - a1[0])*(a1[1] - b1[1])) - ((a2[1] - a1[1])*(a1[0] - b1[0]));
+  if (denom == 0 )
+  {
+	if(nume_a == 0 && nume_b == 0)
+	{
+	  ret = IR_COINCIDENT;
+	}
+	else
+	{
+	  ret = IR_PARALLEL;
+	}
+  }
+  else
+  {
+
+	REAL recip = 1 / denom;
+	REAL ua = nume_a * recip;
+	REAL ub = nume_b * recip;
+
+	if(ua >= 0 && ua <= 1 && ub >= 0 && ub <= 1 )
+	{
+	  t1 = ua;
+	  t2 = ub;
+	  ret = IR_DO_INTERSECT;
+	}
+	else
+	{
+	  ret = IR_DONT_INTERSECT;
+	}
+  }
+  return ret;
+}
+
+//**** Plane Triangle Intersection
+
+
+
+
+
+// assumes that the points are on opposite sides of the plane!
+bool fm_intersectPointPlane(const REAL *p1,const REAL *p2,REAL *split,const REAL *plane)
+{
+
+  REAL dp1 = fm_distToPlane(plane,p1);
+  REAL dp2 = fm_distToPlane(plane, p2);
+  if (dp1 <= 0 && dp2 <= 0)
+  {
+	  return false;
+  }
+  if (dp1 >= 0 && dp2 >= 0)
+  {
+	  return false;
+  }
+
+  REAL dir[3];
+
+  dir[0] = p2[0] - p1[0];
+  dir[1] = p2[1] - p1[1];
+  dir[2] = p2[2] - p1[2];
+
+  REAL dot1 = dir[0]*plane[0] + dir[1]*plane[1] + dir[2]*plane[2];
+  REAL dot2 = dp1 - plane[3];
+
+  REAL    t = -(plane[3] + dot2 ) / dot1;
+
+  split[0] = (dir[0]*t)+p1[0];
+  split[1] = (dir[1]*t)+p1[1];
+  split[2] = (dir[2]*t)+p1[2];
+
+  return true;
+}
+
+PlaneTriResult fm_getSidePlane(const REAL *p,const REAL *plane,REAL epsilon)
+{
+  PlaneTriResult ret = PTR_ON_PLANE;
+
+  REAL d = fm_distToPlane(plane,p);
+
+  if ( d < -epsilon || d > epsilon )
+  {
+	if ( d > 0 )
+		ret =  PTR_FRONT; // it is 'in front' within the provided epsilon value.
+	else
+	  ret = PTR_BACK;
+  }
+
+  return ret;
+}
+
+
+
+#ifndef PLANE_TRIANGLE_INTERSECTION_H
+
+#define PLANE_TRIANGLE_INTERSECTION_H
+
+#define MAXPTS 256
+
+template <class Type> class point
+{
+public:
+
+  void set(const Type *p)
+  {
+	x = p[0];
+	y = p[1];
+	z = p[2];
+  }
+
+  Type x;
+  Type y;
+  Type z;
+};
+
+template <class Type> class plane
+{
+public:
+  plane(const Type *p)
+  {
+	normal.x = p[0];
+	normal.y = p[1];
+	normal.z = p[2];
+	D        = p[3];
+  }
+
+  Type Classify_Point(const point<Type> &p)
+  {
+	return p.x*normal.x + p.y*normal.y + p.z*normal.z + D;
+  }
+
+  point<Type> normal;
+  Type  D;
+};
+
+template <class Type> class polygon
+{
+public:
+  polygon(void)
+  {
+	mVcount = 0;
+  }
+
+  polygon(const Type *p1,const Type *p2,const Type *p3)
+  {
+	mVcount = 3;
+	mVertices[0].set(p1);
+	mVertices[1].set(p2);
+	mVertices[2].set(p3);
+  }
+
+
+  int32_t NumVertices(void) const { return mVcount; };
+
+  const point<Type>& Vertex(int32_t index)
+  {
+	if ( index < 0 ) index+=mVcount;
+	return mVertices[index];
+  };
+
+
+  void set(const point<Type> *pts,int32_t count)
+  {
+	for (int32_t i=0; i<count; i++)
+	{
+	  mVertices[i] = pts[i];
+	}
+	mVcount = count;
+  }
+
+
+  void Split_Polygon(polygon<Type> *poly,plane<Type> *part, polygon<Type> &front, polygon<Type> &back)
+  {
+	int32_t   count = poly->NumVertices ();
+	int32_t   out_c = 0, in_c = 0;
+	point<Type> ptA, ptB,outpts[MAXPTS],inpts[MAXPTS];
+	Type sideA, sideB;
+	ptA = poly->Vertex (count - 1);
+	sideA = part->Classify_Point (ptA);
+	for (int32_t i = -1; ++i < count;)
+	{
+	  ptB = poly->Vertex(i);
+	  sideB = part->Classify_Point(ptB);
+	  if (sideB > 0)
+	  {
+		if (sideA < 0)
+		{
+			  point<Type> v;
+		  fm_intersectPointPlane(&ptB.x, &ptA.x, &v.x, &part->normal.x );
+		  outpts[out_c++] = inpts[in_c++] = v;
+		}
+		outpts[out_c++] = ptB;
+	  }
+	  else if (sideB < 0)
+	  {
+		if (sideA > 0)
+		{
+		  point<Type> v;
+		  fm_intersectPointPlane(&ptB.x, &ptA.x, &v.x, &part->normal.x );
+		  outpts[out_c++] = inpts[in_c++] = v;
+		}
+		inpts[in_c++] = ptB;
+	  }
+	  else
+		 outpts[out_c++] = inpts[in_c++] = ptB;
+	  ptA = ptB;
+	  sideA = sideB;
+	}
+
+	front.set(&outpts[0], out_c);
+	back.set(&inpts[0], in_c);
+  }
+
+  int32_t           mVcount;
+  point<Type>   mVertices[MAXPTS];
+};
+
+
+
+#endif
+
+static inline void add(const REAL *p,REAL *dest,uint32_t tstride,uint32_t &pcount)
+{
+  char *d = (char *) dest;
+  d = d + pcount*tstride;
+  dest = (REAL *) d;
+  dest[0] = p[0];
+  dest[1] = p[1];
+  dest[2] = p[2];
+  pcount++;
+	assert( pcount <= 4 );
+}
+
+
+PlaneTriResult fm_planeTriIntersection(const REAL *_plane,    // the plane equation in Ax+By+Cz+D format
+									const REAL *triangle, // the source triangle.
+									uint32_t tstride,  // stride in bytes of the input and output *vertices*
+									REAL        epsilon,  // the co-planar epsilon value.
+									REAL       *front,    // the triangle in front of the
+									uint32_t &fcount,  // number of vertices in the 'front' triangle
+									REAL       *back,     // the triangle in back of the plane
+									uint32_t &bcount) // the number of vertices in the 'back' triangle.
+{
+
+  fcount = 0;
+  bcount = 0;
+
+  const char *tsource = (const char *) triangle;
+
+  // get the three vertices of the triangle.
+  const REAL *p1     = (const REAL *) (tsource);
+  const REAL *p2     = (const REAL *) (tsource+tstride);
+  const REAL *p3     = (const REAL *) (tsource+tstride*2);
+
+
+  PlaneTriResult r1   = fm_getSidePlane(p1,_plane,epsilon); // compute the side of the plane each vertex is on
+  PlaneTriResult r2   = fm_getSidePlane(p2,_plane,epsilon);
+  PlaneTriResult r3   = fm_getSidePlane(p3,_plane,epsilon);
+
+  // If any of the points lay right *on* the plane....
+  if ( r1 == PTR_ON_PLANE || r2 == PTR_ON_PLANE || r3 == PTR_ON_PLANE )
+  {
+	// If the triangle is completely co-planar, then just treat it as 'front' and return!
+	if ( r1 == PTR_ON_PLANE && r2 == PTR_ON_PLANE && r3 == PTR_ON_PLANE )
+	{
+	  add(p1,front,tstride,fcount);
+	  add(p2,front,tstride,fcount);
+	  add(p3,front,tstride,fcount);
+	  return PTR_FRONT;
+	}
+	// Decide to place the co-planar points on the same side as the co-planar point.
+	PlaneTriResult r= PTR_ON_PLANE;
+	if ( r1 != PTR_ON_PLANE )
+	  r = r1;
+	else if ( r2 != PTR_ON_PLANE )
+	  r = r2;
+	else if ( r3 != PTR_ON_PLANE )
+	  r = r3;
+
+	if ( r1 == PTR_ON_PLANE ) r1 = r;
+	if ( r2 == PTR_ON_PLANE ) r2 = r;
+	if ( r3 == PTR_ON_PLANE ) r3 = r;
+
+  }
+
+  if ( r1 == r2 && r1 == r3 ) // if all three vertices are on the same side of the plane.
+  {
+	if ( r1 == PTR_FRONT ) // if all three are in front of the plane, then copy to the 'front' output triangle.
+	{
+	  add(p1,front,tstride,fcount);
+	  add(p2,front,tstride,fcount);
+	  add(p3,front,tstride,fcount);
+	}
+	else
+	{
+	  add(p1,back,tstride,bcount); // if all three are in 'back' then copy to the 'back' output triangle.
+	  add(p2,back,tstride,bcount);
+	  add(p3,back,tstride,bcount);
+	}
+	return r1; // if all three points are on the same side of the plane return result
+  }
+
+
+  polygon<REAL> pi(p1,p2,p3);
+  polygon<REAL>  pfront,pback;
+
+  plane<REAL>    part(_plane);
+
+  pi.Split_Polygon(&pi,&part,pfront,pback);
+
+  for (int32_t i=0; i<pfront.mVcount; i++)
+  {
+	add( &pfront.mVertices[i].x, front, tstride, fcount );
+  }
+
+  for (int32_t i=0; i<pback.mVcount; i++)
+  {
+	add( &pback.mVertices[i].x, back, tstride, bcount );
+  }
+
+  PlaneTriResult ret = PTR_SPLIT;
+
+  if ( fcount < 3 ) fcount = 0;
+  if ( bcount < 3 ) bcount = 0;
+
+  if ( fcount == 0 && bcount )
+	ret = PTR_BACK;
+
+  if ( bcount == 0 && fcount )
+	ret = PTR_FRONT;
+
+
+  return ret;
+}
+
+// computes the OBB for this set of points relative to this transform matrix.
+void computeOBB(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *sides,REAL *matrix)
+{
+  const char *src = (const char *) points;
+
+  REAL bmin[3] = { 1e9, 1e9, 1e9 };
+  REAL bmax[3] = { -1e9, -1e9, -1e9 };
+
+  for (uint32_t i=0; i<vcount; i++)
+  {
+	const REAL *p = (const REAL *) src;
+	REAL t[3];
+
+	fm_inverseRT(matrix, p, t ); // inverse rotate translate
+
+	if ( t[0] < bmin[0] ) bmin[0] = t[0];
+	if ( t[1] < bmin[1] ) bmin[1] = t[1];
+	if ( t[2] < bmin[2] ) bmin[2] = t[2];
+
+	if ( t[0] > bmax[0] ) bmax[0] = t[0];
+	if ( t[1] > bmax[1] ) bmax[1] = t[1];
+	if ( t[2] > bmax[2] ) bmax[2] = t[2];
+
+	src+=pstride;
+  }
+
+  REAL center[3];
+
+  sides[0] = bmax[0]-bmin[0];
+  sides[1] = bmax[1]-bmin[1];
+  sides[2] = bmax[2]-bmin[2];
+
+  center[0] = sides[0]*0.5f+bmin[0];
+  center[1] = sides[1]*0.5f+bmin[1];
+  center[2] = sides[2]*0.5f+bmin[2];
+
+  REAL ocenter[3];
+
+  fm_rotate(matrix,center,ocenter);
+
+  matrix[12]+=ocenter[0];
+  matrix[13]+=ocenter[1];
+  matrix[14]+=ocenter[2];
+
+}
+
+void fm_computeBestFitOBB(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *sides,REAL *matrix,bool bruteForce)
+{
+  REAL plane[4];
+  REAL center[3];
+  fm_computeBestFitPlane(vcount,points,pstride,0,0,plane,center);
+  fm_planeToMatrix(plane,matrix);
+  computeOBB( vcount, points, pstride, sides, matrix );
+
+  REAL refmatrix[16];
+  memcpy(refmatrix,matrix,16*sizeof(REAL));
+
+  REAL volume = sides[0]*sides[1]*sides[2];
+  if ( bruteForce )
+  {
+	for (REAL a=10; a<180; a+=10)
+	{
+	  REAL quat[4];
+	  fm_eulerToQuat(0,a*FM_DEG_TO_RAD,0,quat);
+	  REAL temp[16];
+	  REAL pmatrix[16];
+	  fm_quatToMatrix(quat,temp);
+	  fm_matrixMultiply(temp,refmatrix,pmatrix);
+	  REAL psides[3];
+	  computeOBB( vcount, points, pstride, psides, pmatrix );
+	  REAL v = psides[0]*psides[1]*psides[2];
+	  if ( v < volume )
+	  {
+		volume = v;
+		memcpy(matrix,pmatrix,sizeof(REAL)*16);
+		sides[0] = psides[0];
+		sides[1] = psides[1];
+		sides[2] = psides[2];
+	  }
+	}
+  }
+}
+
+void fm_computeBestFitOBB(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *sides,REAL *pos,REAL *quat,bool bruteForce)
+{
+  REAL matrix[16];
+  fm_computeBestFitOBB(vcount,points,pstride,sides,matrix,bruteForce);
+  fm_getTranslation(matrix,pos);
+  fm_matrixToQuat(matrix,quat);
+}
+
+void fm_computeBestFitABB(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *sides,REAL *pos)
+{
+	REAL bmin[3];
+	REAL bmax[3];
+
+  bmin[0] = points[0];
+  bmin[1] = points[1];
+  bmin[2] = points[2];
+
+  bmax[0] = points[0];
+  bmax[1] = points[1];
+  bmax[2] = points[2];
+
+	const char *cp = (const char *) points;
+	for (uint32_t i=0; i<vcount; i++)
+	{
+		const REAL *p = (const REAL *) cp;
+
+		if ( p[0] < bmin[0] ) bmin[0] = p[0];
+		if ( p[1] < bmin[1] ) bmin[1] = p[1];
+		if ( p[2] < bmin[2] ) bmin[2] = p[2];
+
+	if ( p[0] > bmax[0] ) bmax[0] = p[0];
+	if ( p[1] > bmax[1] ) bmax[1] = p[1];
+	if ( p[2] > bmax[2] ) bmax[2] = p[2];
+
+	cp+=pstride;
+	}
+
+
+	sides[0] = bmax[0] - bmin[0];
+	sides[1] = bmax[1] - bmin[1];
+	sides[2] = bmax[2] - bmin[2];
+
+	pos[0] = bmin[0]+sides[0]*0.5f;
+	pos[1] = bmin[1]+sides[1]*0.5f;
+	pos[2] = bmin[2]+sides[2]*0.5f;
+
+}
+
+
+void fm_planeToMatrix(const REAL *plane,REAL *matrix) // convert a plane equation to a 4x4 rotation matrix
+{
+  REAL ref[3] = { 0, 1, 0 };
+  REAL quat[4];
+  fm_rotationArc(ref,plane,quat);
+  fm_quatToMatrix(quat,matrix);
+  REAL origin[3] = { 0, -plane[3], 0 };
+  REAL center[3];
+  fm_transform(matrix,origin,center);
+  fm_setTranslation(center,matrix);
+}
+
+void fm_planeToQuat(const REAL *plane,REAL *quat,REAL *pos) // convert a plane equation to a quaternion and translation
+{
+  REAL ref[3] = { 0, 1, 0 };
+  REAL matrix[16];
+  fm_rotationArc(ref,plane,quat);
+  fm_quatToMatrix(quat,matrix);
+  REAL origin[3] = { 0, plane[3], 0 };
+  fm_transform(matrix,origin,pos);
+}
+
+void fm_eulerMatrix(REAL ax,REAL ay,REAL az,REAL *matrix) // convert euler (in radians) to a dest 4x4 matrix (translation set to zero)
+{
+  REAL quat[4];
+  fm_eulerToQuat(ax,ay,az,quat);
+  fm_quatToMatrix(quat,matrix);
+}
+
+
+//**********************************************************
+//**********************************************************
+//**** Vertex Welding
+//**********************************************************
+//**********************************************************
+
+#ifndef VERTEX_INDEX_H
+
+#define VERTEX_INDEX_H
+
+namespace VERTEX_INDEX
+{
+
+class KdTreeNode;
+
+typedef std::vector< KdTreeNode * > KdTreeNodeVector;
+
+enum Axes
+{
+  X_AXIS = 0,
+  Y_AXIS = 1,
+  Z_AXIS = 2
+};
+
+class KdTreeFindNode
+{
+public:
+  KdTreeFindNode(void)
+  {
+	mNode = 0;
+	mDistance = 0;
+  }
+  KdTreeNode  *mNode;
+  double        mDistance;
+};
+
+class KdTreeInterface
+{
+public:
+  virtual const double * getPositionDouble(uint32_t index) const = 0;
+  virtual const float  * getPositionFloat(uint32_t index) const = 0;
+};
+
+class KdTreeNode
+{
+public:
+  KdTreeNode(void)
+  {
+	mIndex = 0;
+	mLeft = 0;
+	mRight = 0;
+  }
+
+  KdTreeNode(uint32_t index)
+  {
+	mIndex = index;
+	mLeft = 0;
+	mRight = 0;
+  };
+
+	~KdTreeNode(void)
+  {
+  }
+
+
+  void addDouble(KdTreeNode *node,Axes dim,const KdTreeInterface *iface)
+  {
+	const double *nodePosition = iface->getPositionDouble( node->mIndex );
+	const double *position     = iface->getPositionDouble( mIndex );
+	switch ( dim )
+	{
+	  case X_AXIS:
+		if ( nodePosition[0] <= position[0] )
+		{
+		  if ( mLeft )
+			mLeft->addDouble(node,Y_AXIS,iface);
+		  else
+			mLeft = node;
+		}
+		else
+		{
+		  if ( mRight )
+			mRight->addDouble(node,Y_AXIS,iface);
+		  else
+			mRight = node;
+		}
+		break;
+	  case Y_AXIS:
+		if ( nodePosition[1] <= position[1] )
+		{
+		  if ( mLeft )
+			mLeft->addDouble(node,Z_AXIS,iface);
+		  else
+			mLeft = node;
+		}
+		else
+		{
+		  if ( mRight )
+			mRight->addDouble(node,Z_AXIS,iface);
+		  else
+			mRight = node;
+		}
+		break;
+	  case Z_AXIS:
+		if ( nodePosition[2] <= position[2] )
+		{
+		  if ( mLeft )
+			mLeft->addDouble(node,X_AXIS,iface);
+		  else
+			mLeft = node;
+		}
+		else
+		{
+		  if ( mRight )
+			mRight->addDouble(node,X_AXIS,iface);
+		  else
+			mRight = node;
+		}
+		break;
+	}
+
+  }
+
+
+  void addFloat(KdTreeNode *node,Axes dim,const KdTreeInterface *iface)
+  {
+	const float *nodePosition = iface->getPositionFloat( node->mIndex );
+	const float *position     = iface->getPositionFloat( mIndex );
+	switch ( dim )
+	{
+	  case X_AXIS:
+		if ( nodePosition[0] <= position[0] )
+		{
+		  if ( mLeft )
+			mLeft->addFloat(node,Y_AXIS,iface);
+		  else
+			mLeft = node;
+		}
+		else
+		{
+		  if ( mRight )
+			mRight->addFloat(node,Y_AXIS,iface);
+		  else
+			mRight = node;
+		}
+		break;
+	  case Y_AXIS:
+		if ( nodePosition[1] <= position[1] )
+		{
+		  if ( mLeft )
+			mLeft->addFloat(node,Z_AXIS,iface);
+		  else
+			mLeft = node;
+		}
+		else
+		{
+		  if ( mRight )
+			mRight->addFloat(node,Z_AXIS,iface);
+		  else
+			mRight = node;
+		}
+		break;
+	  case Z_AXIS:
+		if ( nodePosition[2] <= position[2] )
+		{
+		  if ( mLeft )
+			mLeft->addFloat(node,X_AXIS,iface);
+		  else
+			mLeft = node;
+		}
+		else
+		{
+		  if ( mRight )
+			mRight->addFloat(node,X_AXIS,iface);
+		  else
+			mRight = node;
+		}
+		break;
+	}
+
+  }
+
+
+  uint32_t getIndex(void) const { return mIndex; };
+
+  void search(Axes axis,const double *pos,double radius,uint32_t &count,uint32_t maxObjects,KdTreeFindNode *found,const KdTreeInterface *iface)
+  {
+
+	const double *position = iface->getPositionDouble(mIndex);
+
+	double dx = pos[0] - position[0];
+	double dy = pos[1] - position[1];
+	double dz = pos[2] - position[2];
+
+	KdTreeNode *search1 = 0;
+	KdTreeNode *search2 = 0;
+
+	switch ( axis )
+	{
+	  case X_AXIS:
+	   if ( dx <= 0 )     // JWR  if we are to the left
+	   {
+		search1 = mLeft; // JWR  then search to the left
+		if ( -dx < radius )  // JWR  if distance to the right is less than our search radius, continue on the right as well.
+		  search2 = mRight;
+	   }
+	   else
+	   {
+		 search1 = mRight; // JWR  ok, we go down the left tree
+		 if ( dx < radius ) // JWR  if the distance from the right is less than our search radius
+				search2 = mLeft;
+		}
+		axis = Y_AXIS;
+		break;
+	  case Y_AXIS:
+		if ( dy <= 0 )
+		{
+		  search1 = mLeft;
+		  if ( -dy < radius )
+					search2 = mRight;
+		}
+		else
+		{
+		  search1 = mRight;
+		  if ( dy < radius )
+					search2 = mLeft;
+		}
+		axis = Z_AXIS;
+		break;
+	  case Z_AXIS:
+		if ( dz <= 0 )
+		{
+		  search1 = mLeft;
+		  if ( -dz < radius )
+					search2 = mRight;
+		}
+		else
+		{
+		  search1 = mRight;
+		  if ( dz < radius )
+					search2 = mLeft;
+		}
+		axis = X_AXIS;
+		break;
+	}
+
+	double r2 = radius*radius;
+	double m  = dx*dx+dy*dy+dz*dz;
+
+	if ( m < r2 )
+	{
+	  switch ( count )
+	  {
+		case 0:
+		  found[count].mNode = this;
+		  found[count].mDistance = m;
+		  break;
+		case 1:
+		  if ( m < found[0].mDistance )
+		  {
+			if ( maxObjects == 1 )
+			{
+			  found[0].mNode = this;
+			  found[0].mDistance = m;
+			}
+			else
+			{
+			  found[1] = found[0];
+			  found[0].mNode = this;
+			  found[0].mDistance = m;
+			}
+		  }
+		  else if ( maxObjects > 1)
+		  {
+			found[1].mNode = this;
+			found[1].mDistance = m;
+		  }
+		  break;
+		default:
+		  {
+			bool inserted = false;
+
+			for (uint32_t i=0; i<count; i++)
+			{
+			  if ( m < found[i].mDistance ) // if this one is closer than a pre-existing one...
+			  {
+				// insertion sort...
+				uint32_t scan = count;
+				if ( scan >= maxObjects ) scan=maxObjects-1;
+				for (uint32_t j=scan; j>i; j--)
+				{
+				  found[j] = found[j-1];
+				}
+				found[i].mNode = this;
+				found[i].mDistance = m;
+				inserted = true;
+				break;
+			  }
+			}
+
+			if ( !inserted && count < maxObjects )
+			{
+			  found[count].mNode = this;
+			  found[count].mDistance = m;
+			}
+		  }
+		  break;
+	  }
+	  count++;
+	  if ( count > maxObjects )
+	  {
+		count = maxObjects;
+	  }
+	}
+
+
+	if ( search1 )
+		search1->search( axis, pos,radius, count, maxObjects, found, iface);
+
+	if ( search2 )
+		search2->search( axis, pos,radius, count, maxObjects, found, iface);
+
+  }
+
+  void search(Axes axis,const float *pos,float radius,uint32_t &count,uint32_t maxObjects,KdTreeFindNode *found,const KdTreeInterface *iface)
+  {
+
+	const float *position = iface->getPositionFloat(mIndex);
+
+	float dx = pos[0] - position[0];
+	float dy = pos[1] - position[1];
+	float dz = pos[2] - position[2];
+
+	KdTreeNode *search1 = 0;
+	KdTreeNode *search2 = 0;
+
+	switch ( axis )
+	{
+	  case X_AXIS:
+	   if ( dx <= 0 )     // JWR  if we are to the left
+	   {
+		search1 = mLeft; // JWR  then search to the left
+		if ( -dx < radius )  // JWR  if distance to the right is less than our search radius, continue on the right as well.
+		  search2 = mRight;
+	   }
+	   else
+	   {
+		 search1 = mRight; // JWR  ok, we go down the left tree
+		 if ( dx < radius ) // JWR  if the distance from the right is less than our search radius
+				search2 = mLeft;
+		}
+		axis = Y_AXIS;
+		break;
+	  case Y_AXIS:
+		if ( dy <= 0 )
+		{
+		  search1 = mLeft;
+		  if ( -dy < radius )
+					search2 = mRight;
+		}
+		else
+		{
+		  search1 = mRight;
+		  if ( dy < radius )
+					search2 = mLeft;
+		}
+		axis = Z_AXIS;
+		break;
+	  case Z_AXIS:
+		if ( dz <= 0 )
+		{
+		  search1 = mLeft;
+		  if ( -dz < radius )
+					search2 = mRight;
+		}
+		else
+		{
+		  search1 = mRight;
+		  if ( dz < radius )
+					search2 = mLeft;
+		}
+		axis = X_AXIS;
+		break;
+	}
+
+	float r2 = radius*radius;
+	float m  = dx*dx+dy*dy+dz*dz;
+
+	if ( m < r2 )
+	{
+	  switch ( count )
+	  {
+		case 0:
+		  found[count].mNode = this;
+		  found[count].mDistance = m;
+		  break;
+		case 1:
+		  if ( m < found[0].mDistance )
+		  {
+			if ( maxObjects == 1 )
+			{
+			  found[0].mNode = this;
+			  found[0].mDistance = m;
+			}
+			else
+			{
+			  found[1] = found[0];
+			  found[0].mNode = this;
+			  found[0].mDistance = m;
+			}
+		  }
+		  else if ( maxObjects > 1)
+		  {
+			found[1].mNode = this;
+			found[1].mDistance = m;
+		  }
+		  break;
+		default:
+		  {
+			bool inserted = false;
+
+			for (uint32_t i=0; i<count; i++)
+			{
+			  if ( m < found[i].mDistance ) // if this one is closer than a pre-existing one...
+			  {
+				// insertion sort...
+				uint32_t scan = count;
+				if ( scan >= maxObjects ) scan=maxObjects-1;
+				for (uint32_t j=scan; j>i; j--)
+				{
+				  found[j] = found[j-1];
+				}
+				found[i].mNode = this;
+				found[i].mDistance = m;
+				inserted = true;
+				break;
+			  }
+			}
+
+			if ( !inserted && count < maxObjects )
+			{
+			  found[count].mNode = this;
+			  found[count].mDistance = m;
+			}
+		  }
+		  break;
+	  }
+	  count++;
+	  if ( count > maxObjects )
+	  {
+		count = maxObjects;
+	  }
+	}
+
+
+	if ( search1 )
+		search1->search( axis, pos,radius, count, maxObjects, found, iface);
+
+	if ( search2 )
+		search2->search( axis, pos,radius, count, maxObjects, found, iface);
+
+  }
+
+private:
+
+  void setLeft(KdTreeNode *left) { mLeft = left; };
+  void setRight(KdTreeNode *right) { mRight = right; };
+
+	KdTreeNode *getLeft(void)         { return mLeft; }
+	KdTreeNode *getRight(void)        { return mRight; }
+
+  uint32_t          mIndex;
+  KdTreeNode     *mLeft;
+  KdTreeNode     *mRight;
+};
+
+
+#define MAX_BUNDLE_SIZE 1024  // 1024 nodes at a time, to minimize memory allocation and guarantee that pointers are persistent.
+
+class KdTreeNodeBundle 
+{
+public:
+
+  KdTreeNodeBundle(void)
+  {
+	mNext = 0;
+	mIndex = 0;
+  }
+
+  bool isFull(void) const
+  {
+	return (bool)( mIndex == MAX_BUNDLE_SIZE );
+  }
+
+  KdTreeNode * getNextNode(void)
+  {
+	assert(mIndex<MAX_BUNDLE_SIZE);
+	KdTreeNode *ret = &mNodes[mIndex];
+	mIndex++;
+	return ret;
+  }
+
+  KdTreeNodeBundle  *mNext;
+  uint32_t             mIndex;
+  KdTreeNode         mNodes[MAX_BUNDLE_SIZE];
+};
+
+
+typedef std::vector< double > DoubleVector;
+typedef std::vector< float >  FloatVector;
+
+class KdTree : public KdTreeInterface
+{
+public:
+  KdTree(void)
+  {
+	mRoot = 0;
+	mBundle = 0;
+	mVcount = 0;
+	mUseDouble = false;
+  }
+
+  virtual ~KdTree(void)
+  {
+	reset();
+  }
+
+  const double * getPositionDouble(uint32_t index) const
+  {
+	assert( mUseDouble );
+	assert ( index < mVcount );
+	return  &mVerticesDouble[index*3];
+  }
+
+  const float * getPositionFloat(uint32_t index) const
+  {
+	assert( !mUseDouble );
+	assert ( index < mVcount );
+	return  &mVerticesFloat[index*3];
+  }
+
+  uint32_t search(const double *pos,double radius,uint32_t maxObjects,KdTreeFindNode *found) const
+  {
+	assert( mUseDouble );
+	if ( !mRoot )	return 0;
+	uint32_t count = 0;
+	mRoot->search(X_AXIS,pos,radius,count,maxObjects,found,this);
+	return count;
+  }
+
+  uint32_t search(const float *pos,float radius,uint32_t maxObjects,KdTreeFindNode *found) const
+  {
+	assert( !mUseDouble );
+	if ( !mRoot )	return 0;
+	uint32_t count = 0;
+	mRoot->search(X_AXIS,pos,radius,count,maxObjects,found,this);
+	return count;
+  }
+
+  void reset(void)
+  {
+	mRoot = 0;
+	mVerticesDouble.clear();
+	mVerticesFloat.clear();
+	KdTreeNodeBundle *bundle = mBundle;
+	while ( bundle )
+	{
+	  KdTreeNodeBundle *next = bundle->mNext;
+	  delete bundle;
+	  bundle = next;
+	}
+	mBundle = 0;
+	mVcount = 0;
+  }
+
+  uint32_t add(double x,double y,double z)
+  {
+	assert(mUseDouble);
+	uint32_t ret = mVcount;
+	mVerticesDouble.push_back(x);
+	mVerticesDouble.push_back(y);
+	mVerticesDouble.push_back(z);
+	mVcount++;
+	KdTreeNode *node = getNewNode(ret);
+	if ( mRoot )
+	{
+	  mRoot->addDouble(node,X_AXIS,this);
+	}
+	else
+	{
+	  mRoot = node;
+	}
+	return ret;
+  }
+
+  uint32_t add(float x,float y,float z)
+  {
+	assert(!mUseDouble);
+	uint32_t ret = mVcount;
+	mVerticesFloat.push_back(x);
+	mVerticesFloat.push_back(y);
+	mVerticesFloat.push_back(z);
+	mVcount++;
+	KdTreeNode *node = getNewNode(ret);
+	if ( mRoot )
+	{
+	  mRoot->addFloat(node,X_AXIS,this);
+	}
+	else
+	{
+	  mRoot = node;
+	}
+	return ret;
+  }
+
+  KdTreeNode * getNewNode(uint32_t index)
+  {
+	if ( mBundle == 0 )
+	{
+	  mBundle = new KdTreeNodeBundle;
+	}
+	if ( mBundle->isFull() )
+	{
+	  KdTreeNodeBundle *bundle = new KdTreeNodeBundle;
+	  mBundle->mNext = bundle;
+	  mBundle = bundle;
+	}
+	KdTreeNode *node = mBundle->getNextNode();
+	new ( node ) KdTreeNode(index);
+	return node;
+  }
+
+  uint32_t getNearest(const double *pos,double radius,bool &_found) const // returns the nearest possible neighbor's index.
+  {
+	assert( mUseDouble );
+	uint32_t ret = 0;
+
+	_found = false;
+	KdTreeFindNode found[1];
+	uint32_t count = search(pos,radius,1,found);
+	if ( count )
+	{
+	  KdTreeNode *node = found[0].mNode;
+	  ret = node->getIndex();
+	  _found = true;
+	}
+	return ret;
+  }
+
+  uint32_t getNearest(const float *pos,float radius,bool &_found) const // returns the nearest possible neighbor's index.
+  {
+	assert( !mUseDouble );
+	uint32_t ret = 0;
+
+	_found = false;
+	KdTreeFindNode found[1];
+	uint32_t count = search(pos,radius,1,found);
+	if ( count )
+	{
+	  KdTreeNode *node = found[0].mNode;
+	  ret = node->getIndex();
+	  _found = true;
+	}
+	return ret;
+  }
+
+  const double * getVerticesDouble(void) const
+  {
+	assert( mUseDouble );
+	const double *ret = 0;
+	if ( !mVerticesDouble.empty() )
+	{
+	  ret = &mVerticesDouble[0];
+	}
+	return ret;
+  }
+
+  const float * getVerticesFloat(void) const
+  {
+	assert( !mUseDouble );
+	const float * ret = 0;
+	if ( !mVerticesFloat.empty() )
+	{
+	  ret = &mVerticesFloat[0];
+	}
+	return ret;
+  }
+
+  uint32_t getVcount(void) const { return mVcount; };
+
+  void setUseDouble(bool useDouble)
+  {
+	mUseDouble = useDouble;
+  }
+
+private:
+  bool                    mUseDouble;
+  KdTreeNode             *mRoot;
+  KdTreeNodeBundle       *mBundle;
+  uint32_t                  mVcount;
+  DoubleVector            mVerticesDouble;
+  FloatVector             mVerticesFloat;
+};
+
+}; // end of namespace VERTEX_INDEX
+
+class MyVertexIndex : public fm_VertexIndex
+{
+public:
+  MyVertexIndex(double granularity,bool snapToGrid)
+  {
+	mDoubleGranularity = granularity;
+	mFloatGranularity  = (float)granularity;
+	mSnapToGrid        = snapToGrid;
+	mUseDouble         = true;
+	mKdTree.setUseDouble(true);
+  }
+
+  MyVertexIndex(float granularity,bool snapToGrid)
+  {
+	mDoubleGranularity = granularity;
+	mFloatGranularity  = (float)granularity;
+	mSnapToGrid        = snapToGrid;
+	mUseDouble         = false;
+	mKdTree.setUseDouble(false);
+  }
+
+  virtual ~MyVertexIndex(void)
+  {
+
+  }
+
+
+  double snapToGrid(double p)
+  {
+	double m = fmod(p,mDoubleGranularity);
+	p-=m;
+	return p;
+  }
+
+  float snapToGrid(float p)
+  {
+	float m = fmodf(p,mFloatGranularity);
+	p-=m;
+	return p;
+  }
+
+  uint32_t    getIndex(const float *_p,bool &newPos)  // get index for a vector float
+  {
+	uint32_t ret;
+
+	if ( mUseDouble )
+	{
+	  double p[3];
+	  p[0] = _p[0];
+	  p[1] = _p[1];
+	  p[2] = _p[2];
+	  return getIndex(p,newPos);
+	}
+
+	newPos = false;
+
+	float p[3];
+
+	if ( mSnapToGrid )
+	{
+	  p[0] = snapToGrid(_p[0]);
+	  p[1] = snapToGrid(_p[1]);
+	  p[2] = snapToGrid(_p[2]);
+	}
+	else
+	{
+	  p[0] = _p[0];
+	  p[1] = _p[1];
+	  p[2] = _p[2];
+	}
+
+	bool found;
+	ret = mKdTree.getNearest(p,mFloatGranularity,found);
+	if ( !found )
+	{
+	  newPos = true;
+	  ret = mKdTree.add(p[0],p[1],p[2]);
+	}
+
+
+	return ret;
+  }
+
+  uint32_t    getIndex(const double *_p,bool &newPos)  // get index for a vector double
+  {
+	uint32_t ret;
+
+	if ( !mUseDouble )
+	{
+	  float p[3];
+	  p[0] = (float)_p[0];
+	  p[1] = (float)_p[1];
+	  p[2] = (float)_p[2];
+	  return getIndex(p,newPos);
+	}
+
+	newPos = false;
+
+	double p[3];
+
+	if ( mSnapToGrid )
+	{
+	  p[0] = snapToGrid(_p[0]);
+	  p[1] = snapToGrid(_p[1]);
+	  p[2] = snapToGrid(_p[2]);
+	}
+	else
+	{
+	  p[0] = _p[0];
+	  p[1] = _p[1];
+	  p[2] = _p[2];
+	}
+
+	bool found;
+	ret = mKdTree.getNearest(p,mDoubleGranularity,found);
+	if ( !found )
+	{
+	  newPos = true;
+	  ret = mKdTree.add(p[0],p[1],p[2]);
+	}
+
+
+	return ret;
+  }
+
+  const float *   getVerticesFloat(void) const
+  {
+	const float * ret = 0;
+
+	assert( !mUseDouble );
+
+	ret = mKdTree.getVerticesFloat();
+
+	return ret;
+  }
+
+  const double *  getVerticesDouble(void) const
+  {
+	const double * ret = 0;
+
+	assert( mUseDouble );
+
+	ret = mKdTree.getVerticesDouble();
+
+	return ret;
+  }
+
+  const float *   getVertexFloat(uint32_t index) const
+  {
+	const float * ret  = 0;
+	assert( !mUseDouble );
+#ifdef _DEBUG
+	uint32_t vcount = mKdTree.getVcount();
+	assert( index < vcount );
+#endif
+	ret =  mKdTree.getVerticesFloat();
+	ret = &ret[index*3];
+	return ret;
+  }
+
+  const double *   getVertexDouble(uint32_t index) const
+  {
+	const double * ret = 0;
+	assert( mUseDouble );
+#ifdef _DEBUG
+	uint32_t vcount = mKdTree.getVcount();
+	assert( index < vcount );
+#endif
+	ret =  mKdTree.getVerticesDouble();
+	ret = &ret[index*3];
+
+	return ret;
+  }
+
+  uint32_t    getVcount(void) const
+  {
+	return mKdTree.getVcount();
+  }
+
+  bool isDouble(void) const
+  {
+	return mUseDouble;
+  }
+
+
+  bool            saveAsObj(const char *fname,uint32_t tcount,uint32_t *indices)
+  {
+	bool ret = false;
+
+
+	FILE *fph = fopen(fname,"wb");
+	if ( fph )
+	{
+	  ret = true;
+
+	  uint32_t vcount    = getVcount();
+	  if ( mUseDouble )
+	  {
+		const double *v  = getVerticesDouble();
+		for (uint32_t i=0; i<vcount; i++)
+		{
+		  fprintf(fph,"v %0.9f %0.9f %0.9f\r\n", (float)v[0], (float)v[1], (float)v[2] );
+		  v+=3;
+		}
+	  }
+	  else
+	  {
+		const float *v  = getVerticesFloat();
+		for (uint32_t i=0; i<vcount; i++)
+		{
+		  fprintf(fph,"v %0.9f %0.9f %0.9f\r\n", v[0], v[1], v[2] );
+		  v+=3;
+		}
+	  }
+
+	  for (uint32_t i=0; i<tcount; i++)
+	  {
+		uint32_t i1 = *indices++;
+		uint32_t i2 = *indices++;
+		uint32_t i3 = *indices++;
+		fprintf(fph,"f %d %d %d\r\n", i1+1, i2+1, i3+1 );
+	  }
+	  fclose(fph);
+	}
+
+	return ret;
+  }
+
+private:
+  bool    mUseDouble:1;
+  bool    mSnapToGrid:1;
+  double  mDoubleGranularity;
+  float   mFloatGranularity;
+  VERTEX_INDEX::KdTree  mKdTree;
+};
+
+fm_VertexIndex * fm_createVertexIndex(double granularity,bool snapToGrid) // create an indexed vertex system for doubles
+{
+  MyVertexIndex *ret = new MyVertexIndex(granularity,snapToGrid);
+  return static_cast< fm_VertexIndex *>(ret);
+}
+
+fm_VertexIndex * fm_createVertexIndex(float granularity,bool snapToGrid)  // create an indexed vertext system for floats
+{
+  MyVertexIndex *ret = new MyVertexIndex(granularity,snapToGrid);
+  return static_cast< fm_VertexIndex *>(ret);
+}
+
+void          fm_releaseVertexIndex(fm_VertexIndex *vindex)
+{
+  MyVertexIndex *m = static_cast< MyVertexIndex *>(vindex);
+  delete m;
+}
+
+#endif   // END OF VERTEX WELDING CODE
+
+
+REAL fm_computeBestFitAABB(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *bmin,REAL *bmax) // returns the diagonal distance
+{
+
+  const uint8_t *source = (const uint8_t *) points;
+
+	bmin[0] = points[0];
+	bmin[1] = points[1];
+	bmin[2] = points[2];
+
+	bmax[0] = points[0];
+	bmax[1] = points[1];
+	bmax[2] = points[2];
+
+
+  for (uint32_t i=1; i<vcount; i++)
+  {
+	source+=pstride;
+	const REAL *p = (const REAL *) source;
+
+	if ( p[0] < bmin[0] ) bmin[0] = p[0];
+	if ( p[1] < bmin[1] ) bmin[1] = p[1];
+	if ( p[2] < bmin[2] ) bmin[2] = p[2];
+
+		if ( p[0] > bmax[0] ) bmax[0] = p[0];
+		if ( p[1] > bmax[1] ) bmax[1] = p[1];
+		if ( p[2] > bmax[2] ) bmax[2] = p[2];
+
+  }
+
+  REAL dx = bmax[0] - bmin[0];
+  REAL dy = bmax[1] - bmin[1];
+  REAL dz = bmax[2] - bmin[2];
+
+	return (REAL) sqrt( dx*dx + dy*dy + dz*dz );
+
+}
+
+
+
+/* a = b - c */
+#define vector(a,b,c) \
+	(a)[0] = (b)[0] - (c)[0];	\
+	(a)[1] = (b)[1] - (c)[1];	\
+	(a)[2] = (b)[2] - (c)[2];
+
+
+
+#define innerProduct(v,q) \
+		((v)[0] * (q)[0] + \
+		(v)[1] * (q)[1] + \
+		(v)[2] * (q)[2])
+
+#define crossProduct(a,b,c) \
+	(a)[0] = (b)[1] * (c)[2] - (c)[1] * (b)[2]; \
+	(a)[1] = (b)[2] * (c)[0] - (c)[2] * (b)[0]; \
+	(a)[2] = (b)[0] * (c)[1] - (c)[0] * (b)[1];
+
+
+bool fm_lineIntersectsTriangle(const REAL *rayStart,const REAL *rayEnd,const REAL *p1,const REAL *p2,const REAL *p3,REAL *sect)
+{
+	REAL dir[3];
+
+  dir[0] = rayEnd[0] - rayStart[0];
+  dir[1] = rayEnd[1] - rayStart[1];
+  dir[2] = rayEnd[2] - rayStart[2];
+
+  REAL d = (REAL)sqrt(dir[0]*dir[0] + dir[1]*dir[1] + dir[2]*dir[2]);
+  REAL r = 1.0f / d;
+
+  dir[0]*=r;
+  dir[1]*=r;
+  dir[2]*=r;
+
+
+  REAL t;
+
+	bool ret = fm_rayIntersectsTriangle(rayStart, dir, p1, p2, p3, t );
+
+	if ( ret )
+	{
+		if ( t > d )
+		{
+			sect[0] = rayStart[0] + dir[0]*t;
+			sect[1] = rayStart[1] + dir[1]*t;
+			sect[2] = rayStart[2] + dir[2]*t;
+		}
+		else
+		{
+			ret = false;
+		}
+	}
+
+  return ret;
+}
+
+
+
+bool fm_rayIntersectsTriangle(const REAL *p,const REAL *d,const REAL *v0,const REAL *v1,const REAL *v2,REAL &t)
+{
+	REAL e1[3],e2[3],h[3],s[3],q[3];
+	REAL a,f,u,v;
+
+	vector(e1,v1,v0);
+	vector(e2,v2,v0);
+	crossProduct(h,d,e2);
+	a = innerProduct(e1,h);
+
+	if (a > -0.00001 && a < 0.00001)
+		return(false);
+
+	f = 1/a;
+	vector(s,p,v0);
+	u = f * (innerProduct(s,h));
+
+	if (u < 0.0 || u > 1.0)
+		return(false);
+
+	crossProduct(q,s,e1);
+	v = f * innerProduct(d,q);
+	if (v < 0.0 || u + v > 1.0)
+		return(false);
+	// at this stage we can compute t to find out where
+	// the intersection point is on the line
+	t = f * innerProduct(e2,q);
+	if (t > 0) // ray intersection
+		return(true);
+	else // this means that there is a line intersection
+		 // but not a ray intersection
+		 return (false);
+}
+
+
+inline REAL det(const REAL *p1,const REAL *p2,const REAL *p3)
+{
+  return  p1[0]*p2[1]*p3[2] + p2[0]*p3[1]*p1[2] + p3[0]*p1[1]*p2[2] -p1[0]*p3[1]*p2[2] - p2[0]*p1[1]*p3[2] - p3[0]*p2[1]*p1[2];
+}
+
+
+REAL  fm_computeMeshVolume(const REAL *vertices,uint32_t tcount,const uint32_t *indices)
+{
+	REAL volume = 0;
+
+	for (uint32_t i=0; i<tcount; i++,indices+=3)
+	{
+	const REAL *p1 = &vertices[ indices[0]*3 ];
+		const REAL *p2 = &vertices[ indices[1]*3 ];
+		const REAL *p3 = &vertices[ indices[2]*3 ];
+		volume+=det(p1,p2,p3); // compute the volume of the tetrahedran relative to the origin.
+	}
+
+	volume*=(1.0f/6.0f);
+	if ( volume < 0 )
+		volume*=-1;
+	return volume;
+}
+
+
+const REAL * fm_getPoint(const REAL *points,uint32_t pstride,uint32_t index)
+{
+  const uint8_t *scan = (const uint8_t *)points;
+  scan+=(index*pstride);
+  return (REAL *)scan;
+}
+
+
+bool fm_insideTriangle(REAL Ax, REAL Ay,
+					  REAL Bx, REAL By,
+					  REAL Cx, REAL Cy,
+					  REAL Px, REAL Py)
+
+{
+  REAL ax, ay, bx, by, cx, cy, apx, apy, bpx, bpy, cpx, cpy;
+  REAL cCROSSap, bCROSScp, aCROSSbp;
+
+  ax = Cx - Bx;  ay = Cy - By;
+  bx = Ax - Cx;  by = Ay - Cy;
+  cx = Bx - Ax;  cy = By - Ay;
+  apx= Px - Ax;  apy= Py - Ay;
+  bpx= Px - Bx;  bpy= Py - By;
+  cpx= Px - Cx;  cpy= Py - Cy;
+
+  aCROSSbp = ax*bpy - ay*bpx;
+  cCROSSap = cx*apy - cy*apx;
+  bCROSScp = bx*cpy - by*cpx;
+
+  return ((aCROSSbp >= 0.0f) && (bCROSScp >= 0.0f) && (cCROSSap >= 0.0f));
+}
+
+
+REAL fm_areaPolygon2d(uint32_t pcount,const REAL *points,uint32_t pstride)
+{
+  int32_t n = (int32_t)pcount;
+
+  REAL A=0.0f;
+  for(int32_t p=n-1,q=0; q<n; p=q++)
+  {
+	const REAL *p1 = fm_getPoint(points,pstride,p);
+	const REAL *p2 = fm_getPoint(points,pstride,q);
+	A+= p1[0]*p2[1] - p2[0]*p1[1];
+  }
+  return A*0.5f;
+}
+
+
+bool  fm_pointInsidePolygon2d(uint32_t pcount,const REAL *points,uint32_t pstride,const REAL *point,uint32_t xindex,uint32_t yindex)
+{
+  uint32_t j = pcount-1;
+  int32_t oddNodes = 0;
+
+  REAL x = point[xindex];
+  REAL y = point[yindex];
+
+  for (uint32_t i=0; i<pcount; i++)
+  {
+	const REAL *p1 = fm_getPoint(points,pstride,i);
+	const REAL *p2 = fm_getPoint(points,pstride,j);
+
+	REAL x1 = p1[xindex];
+	REAL y1 = p1[yindex];
+
+	REAL x2 = p2[xindex];
+	REAL y2 = p2[yindex];
+
+	if ( (y1 < y && y2 >= y) ||  (y2 < y && y1 >= y) )
+	{
+	  if (x1+(y-y1)/(y2-y1)*(x2-x1)<x)
+	  {
+		oddNodes = 1-oddNodes;
+	  }
+	}
+	j = i;
+  }
+
+  return oddNodes ? true : false;
+}
+
+
+uint32_t fm_consolidatePolygon(uint32_t pcount,const REAL *points,uint32_t pstride,REAL *_dest,REAL epsilon) // collapses co-linear edges.
+{
+  uint32_t ret = 0;
+
+
+  if ( pcount >= 3 )
+  {
+	const REAL *prev = fm_getPoint(points,pstride,pcount-1);
+	const REAL *current = points;
+	const REAL *next    = fm_getPoint(points,pstride,1);
+	REAL *dest = _dest;
+
+	for (uint32_t i=0; i<pcount; i++)
+	{
+
+	  next = (i+1)==pcount ? points : next;
+
+	  if ( !fm_colinear(prev,current,next,epsilon) )
+	  {
+		dest[0] = current[0];
+		dest[1] = current[1];
+		dest[2] = current[2];
+
+		dest+=3;
+		ret++;
+	  }
+
+	  prev = current;
+	  current+=3;
+	  next+=3;
+
+	}
+  }
+
+  return ret;
+}
+
+
+#ifndef RECT3D_TEMPLATE
+
+#define RECT3D_TEMPLATE
+
+template <class T> class Rect3d
+{
+public:
+  Rect3d(void) { };
+
+  Rect3d(const T *bmin,const T *bmax)
+  {
+
+	mMin[0] = bmin[0];
+	mMin[1] = bmin[1];
+	mMin[2] = bmin[2];
+
+	mMax[0] = bmax[0];
+	mMax[1] = bmax[1];
+	mMax[2] = bmax[2];
+
+  }
+
+  void SetMin(const T *bmin)
+  {
+	mMin[0] = bmin[0];
+	mMin[1] = bmin[1];
+	mMin[2] = bmin[2];
+  }
+
+  void SetMax(const T *bmax)
+  {
+	mMax[0] = bmax[0];
+	mMax[1] = bmax[1];
+	mMax[2] = bmax[2];
+  }
+
+	void SetMin(T x,T y,T z)
+	{
+		mMin[0] = x;
+		mMin[1] = y;
+		mMin[2] = z;
+	}
+
+	void SetMax(T x,T y,T z)
+	{
+		mMax[0] = x;
+		mMax[1] = y;
+		mMax[2] = z;
+	}
+
+  T mMin[3];
+  T mMax[3];
+};
+
+#endif
+
+void splitRect(uint32_t axis,
+						   const Rect3d<REAL> &source,
+							 Rect3d<REAL> &b1,
+							 Rect3d<REAL> &b2,
+							 const REAL *midpoint)
+{
+	switch ( axis )
+	{
+		case 0:
+			b1.SetMin(source.mMin);
+			b1.SetMax( midpoint[0], source.mMax[1], source.mMax[2] );
+
+			b2.SetMin( midpoint[0], source.mMin[1], source.mMin[2] );
+			b2.SetMax(source.mMax);
+
+			break;
+		case 1:
+			b1.SetMin(source.mMin);
+			b1.SetMax( source.mMax[0], midpoint[1], source.mMax[2] );
+
+			b2.SetMin( source.mMin[0], midpoint[1], source.mMin[2] );
+			b2.SetMax(source.mMax);
+
+			break;
+		case 2:
+			b1.SetMin(source.mMin);
+			b1.SetMax( source.mMax[0], source.mMax[1], midpoint[2] );
+
+			b2.SetMin( source.mMin[0], source.mMin[1], midpoint[2] );
+			b2.SetMax(source.mMax);
+
+			break;
+	}
+}
+
+bool fm_computeSplitPlane(uint32_t vcount,
+						  const REAL *vertices,
+						  uint32_t /* tcount */,
+						  const uint32_t * /* indices */,
+						  REAL *plane)
+{
+
+  REAL sides[3];
+  REAL matrix[16];
+
+  fm_computeBestFitOBB( vcount, vertices, sizeof(REAL)*3, sides, matrix );
+
+  REAL bmax[3];
+  REAL bmin[3];
+
+  bmax[0] = sides[0]*0.5f;
+  bmax[1] = sides[1]*0.5f;
+  bmax[2] = sides[2]*0.5f;
+
+  bmin[0] = -bmax[0];
+  bmin[1] = -bmax[1];
+  bmin[2] = -bmax[2];
+
+
+  REAL dx = sides[0];
+  REAL dy = sides[1];
+  REAL dz = sides[2];
+
+
+	uint32_t axis = 0;
+
+	if ( dy > dx )
+	{
+		axis = 1;
+	}
+
+	if ( dz > dx && dz > dy )
+	{
+		axis = 2;
+	}
+
+  REAL p1[3];
+  REAL p2[3];
+  REAL p3[3];
+
+  p3[0] = p2[0] = p1[0] = bmin[0] + dx*0.5f;
+  p3[1] = p2[1] = p1[1] = bmin[1] + dy*0.5f;
+  p3[2] = p2[2] = p1[2] = bmin[2] + dz*0.5f;
+
+  Rect3d<REAL> b(bmin,bmax);
+
+  Rect3d<REAL> b1,b2;
+
+  splitRect(axis,b,b1,b2,p1);
+
+
+  switch ( axis )
+  {
+	case 0:
+	  p2[1] = bmin[1];
+	  p2[2] = bmin[2];
+
+	  if ( dz > dy )
+	  {
+		p3[1] = bmax[1];
+		p3[2] = bmin[2];
+	  }
+	  else
+	  {
+		p3[1] = bmin[1];
+		p3[2] = bmax[2];
+	  }
+
+	  break;
+	case 1:
+	  p2[0] = bmin[0];
+	  p2[2] = bmin[2];
+
+	  if ( dx > dz )
+	  {
+		p3[0] = bmax[0];
+		p3[2] = bmin[2];
+	  }
+	  else
+	  {
+		p3[0] = bmin[0];
+		p3[2] = bmax[2];
+	  }
+
+	  break;
+	case 2:
+	  p2[0] = bmin[0];
+	  p2[1] = bmin[1];
+
+	  if ( dx > dy )
+	  {
+		p3[0] = bmax[0];
+		p3[1] = bmin[1];
+	  }
+	  else
+	  {
+		p3[0] = bmin[0];
+		p3[1] = bmax[1];
+	  }
+
+	  break;
+  }
+
+  REAL tp1[3];
+  REAL tp2[3];
+  REAL tp3[3];
+
+  fm_transform(matrix,p1,tp1);
+  fm_transform(matrix,p2,tp2);
+  fm_transform(matrix,p3,tp3);
+
+	plane[3] = fm_computePlane(tp1,tp2,tp3,plane);
+
+  return true;
+
+}
+
+#pragma warning(disable:4100)
+
+void fm_nearestPointInTriangle(const REAL * /*nearestPoint*/,const REAL * /*p1*/,const REAL * /*p2*/,const REAL * /*p3*/,REAL * /*nearest*/)
+{
+
+}
+
+static REAL Partial(const REAL *a,const REAL *p) 
+{
+	return (a[0]*p[1]) - (p[0]*a[1]);
+}
+
+REAL  fm_areaTriangle(const REAL *p0,const REAL *p1,const REAL *p2)
+{
+  REAL A = Partial(p0,p1);
+	A+= Partial(p1,p2);
+	A+= Partial(p2,p0);
+	return A*0.5f;
+}
+
+void fm_subtract(const REAL *A,const REAL *B,REAL *diff) // compute A-B and store the result in 'diff'
+{
+  diff[0] = A[0]-B[0];
+  diff[1] = A[1]-B[1];
+  diff[2] = A[2]-B[2];
+}
+
+
+void  fm_multiplyTransform(const REAL *pA,const REAL *pB,REAL *pM)
+{
+
+  REAL a = pA[0*4+0] * pB[0*4+0] + pA[0*4+1] * pB[1*4+0] + pA[0*4+2] * pB[2*4+0] + pA[0*4+3] * pB[3*4+0];
+  REAL b = pA[0*4+0] * pB[0*4+1] + pA[0*4+1] * pB[1*4+1] + pA[0*4+2] * pB[2*4+1] + pA[0*4+3] * pB[3*4+1];
+  REAL c = pA[0*4+0] * pB[0*4+2] + pA[0*4+1] * pB[1*4+2] + pA[0*4+2] * pB[2*4+2] + pA[0*4+3] * pB[3*4+2];
+  REAL d = pA[0*4+0] * pB[0*4+3] + pA[0*4+1] * pB[1*4+3] + pA[0*4+2] * pB[2*4+3] + pA[0*4+3] * pB[3*4+3];
+
+  REAL e = pA[1*4+0] * pB[0*4+0] + pA[1*4+1] * pB[1*4+0] + pA[1*4+2] * pB[2*4+0] + pA[1*4+3] * pB[3*4+0];
+  REAL f = pA[1*4+0] * pB[0*4+1] + pA[1*4+1] * pB[1*4+1] + pA[1*4+2] * pB[2*4+1] + pA[1*4+3] * pB[3*4+1];
+  REAL g = pA[1*4+0] * pB[0*4+2] + pA[1*4+1] * pB[1*4+2] + pA[1*4+2] * pB[2*4+2] + pA[1*4+3] * pB[3*4+2];
+  REAL h = pA[1*4+0] * pB[0*4+3] + pA[1*4+1] * pB[1*4+3] + pA[1*4+2] * pB[2*4+3] + pA[1*4+3] * pB[3*4+3];
+
+  REAL i = pA[2*4+0] * pB[0*4+0] + pA[2*4+1] * pB[1*4+0] + pA[2*4+2] * pB[2*4+0] + pA[2*4+3] * pB[3*4+0];
+  REAL j = pA[2*4+0] * pB[0*4+1] + pA[2*4+1] * pB[1*4+1] + pA[2*4+2] * pB[2*4+1] + pA[2*4+3] * pB[3*4+1];
+  REAL k = pA[2*4+0] * pB[0*4+2] + pA[2*4+1] * pB[1*4+2] + pA[2*4+2] * pB[2*4+2] + pA[2*4+3] * pB[3*4+2];
+  REAL l = pA[2*4+0] * pB[0*4+3] + pA[2*4+1] * pB[1*4+3] + pA[2*4+2] * pB[2*4+3] + pA[2*4+3] * pB[3*4+3];
+
+  REAL m = pA[3*4+0] * pB[0*4+0] + pA[3*4+1] * pB[1*4+0] + pA[3*4+2] * pB[2*4+0] + pA[3*4+3] * pB[3*4+0];
+  REAL n = pA[3*4+0] * pB[0*4+1] + pA[3*4+1] * pB[1*4+1] + pA[3*4+2] * pB[2*4+1] + pA[3*4+3] * pB[3*4+1];
+  REAL o = pA[3*4+0] * pB[0*4+2] + pA[3*4+1] * pB[1*4+2] + pA[3*4+2] * pB[2*4+2] + pA[3*4+3] * pB[3*4+2];
+  REAL p = pA[3*4+0] * pB[0*4+3] + pA[3*4+1] * pB[1*4+3] + pA[3*4+2] * pB[2*4+3] + pA[3*4+3] * pB[3*4+3];
+
+  pM[0] = a;  pM[1] = b;  pM[2] = c;  pM[3] = d;
+
+  pM[4] = e;  pM[5] = f;  pM[6] = g;  pM[7] = h;
+
+  pM[8] = i;  pM[9] = j;  pM[10] = k;  pM[11] = l;
+
+  pM[12] = m;  pM[13] = n;  pM[14] = o;  pM[15] = p;
+}
+
+void fm_multiply(REAL *A,REAL scaler)
+{
+  A[0]*=scaler;
+  A[1]*=scaler;
+  A[2]*=scaler;
+}
+
+void fm_add(const REAL *A,const REAL *B,REAL *sum)
+{
+  sum[0] = A[0]+B[0];
+  sum[1] = A[1]+B[1];
+  sum[2] = A[2]+B[2];
+}
+
+void fm_copy3(const REAL *source,REAL *dest)
+{
+  dest[0] = source[0];
+  dest[1] = source[1];
+  dest[2] = source[2];
+}
+
+
+uint32_t  fm_copyUniqueVertices(uint32_t vcount,const REAL *input_vertices,REAL *output_vertices,uint32_t tcount,const uint32_t *input_indices,uint32_t *output_indices)
+{
+  uint32_t ret = 0;
+
+  REAL *vertices = (REAL *)malloc(sizeof(REAL)*vcount*3);
+  memcpy(vertices,input_vertices,sizeof(REAL)*vcount*3);
+  REAL *dest = output_vertices;
+
+  uint32_t *reindex = (uint32_t *)malloc(sizeof(uint32_t)*vcount);
+  memset(reindex,0xFF,sizeof(uint32_t)*vcount);
+
+  uint32_t icount = tcount*3;
+
+  for (uint32_t i=0; i<icount; i++)
+  {
+	uint32_t index = *input_indices++;
+
+	assert( index < vcount );
+
+	if ( reindex[index] == 0xFFFFFFFF )
+	{
+	  *output_indices++ = ret;
+	  reindex[index] = ret;
+	  const REAL *pos = &vertices[index*3];
+	  dest[0] = pos[0];
+	  dest[1] = pos[1];
+	  dest[2] = pos[2];
+	  dest+=3;
+	  ret++;
+	}
+	else
+	{
+	  *output_indices++ = reindex[index];
+	}
+  }
+  free(vertices);
+  free(reindex);
+  return ret;
+}
+
+bool    fm_isMeshCoplanar(uint32_t tcount,const uint32_t *indices,const REAL *vertices,bool doubleSided) // returns true if this collection of indexed triangles are co-planar!
+{
+  bool ret = true;
+
+  if ( tcount > 0 )
+  {
+	uint32_t i1 = indices[0];
+	uint32_t i2 = indices[1];
+	uint32_t i3 = indices[2];
+	const REAL *p1 = &vertices[i1*3];
+	const REAL *p2 = &vertices[i2*3];
+	const REAL *p3 = &vertices[i3*3];
+	REAL plane[4];
+	plane[3] = fm_computePlane(p1,p2,p3,plane);
+	const uint32_t *scan = &indices[3];
+	for (uint32_t i=1; i<tcount; i++)
+	{
+	  i1 = *scan++;
+	  i2 = *scan++;
+	  i3 = *scan++;
+	  p1 = &vertices[i1*3];
+	  p2 = &vertices[i2*3];
+	  p3 = &vertices[i3*3];
+	  REAL _plane[4];
+	  _plane[3] = fm_computePlane(p1,p2,p3,_plane);
+	  if ( !fm_samePlane(plane,_plane,0.01f,0.001f,doubleSided) )
+	  {
+		ret = false;
+		break;
+	  }
+	}
+  }
+  return ret;
+}
+
+
+bool fm_samePlane(const REAL p1[4],const REAL p2[4],REAL normalEpsilon,REAL dEpsilon,bool doubleSided)
+{
+  bool ret = false;
+
+#if 0
+  if (p1[0] == p2[0] &&
+	  p1[1] == p2[1] &&
+	  p1[2] == p2[2] &&
+	  p1[3] == p2[3])
+  {
+	  ret = true;
+  }
+#else
+  REAL diff = (REAL) fabs(p1[3]-p2[3]);
+  if ( diff < dEpsilon ) // if the plane -d  co-efficient is within our epsilon
+  {
+	REAL dot = fm_dot(p1,p2); // compute the dot-product of the vector normals.
+	if ( doubleSided ) dot = (REAL)fabs(dot);
+	REAL dmin = 1 - normalEpsilon;
+	REAL dmax = 1 + normalEpsilon;
+	if ( dot >= dmin && dot <= dmax )
+	{
+	  ret = true; // then the plane equation is for practical purposes identical.
+	}
+  }
+#endif
+  return ret;
+}
+
+
+void  fm_initMinMax(REAL bmin[3],REAL bmax[3])
+{
+  bmin[0] = FLT_MAX;
+  bmin[1] = FLT_MAX;
+  bmin[2] = FLT_MAX;
+
+  bmax[0] = -FLT_MAX;
+  bmax[1] = -FLT_MAX;
+  bmax[2] = -FLT_MAX;
+}
+
+void fm_inflateMinMax(REAL bmin[3], REAL bmax[3], REAL ratio)
+{
+	REAL inflate = fm_distance(bmin, bmax)*0.5f*ratio;
+
+	bmin[0] -= inflate;
+	bmin[1] -= inflate;
+	bmin[2] -= inflate;
+
+	bmax[0] += inflate;
+	bmax[1] += inflate;
+	bmax[2] += inflate;
+}
+
+#ifndef TESSELATE_H
+
+#define TESSELATE_H
+
+typedef std::vector< uint32_t > UintVector;
+
+class Myfm_Tesselate : public fm_Tesselate
+{
+public:
+  virtual ~Myfm_Tesselate(void)
+  {
+
+  }
+
+  const uint32_t * tesselate(fm_VertexIndex *vindex,uint32_t tcount,const uint32_t *indices,float longEdge,uint32_t maxDepth,uint32_t &outcount)
+  {
+	const uint32_t *ret = 0;
+
+	mMaxDepth = maxDepth;
+	mLongEdge  = longEdge*longEdge;
+	mLongEdgeD = mLongEdge;
+	mVertices = vindex;
+
+	if ( mVertices->isDouble() )
+	{
+	  uint32_t vcount = mVertices->getVcount();
+	  double *vertices = (double *)malloc(sizeof(double)*vcount*3);
+	  memcpy(vertices,mVertices->getVerticesDouble(),sizeof(double)*vcount*3);
+
+	  for (uint32_t i=0; i<tcount; i++)
+	  {
+		uint32_t i1 = *indices++;
+		uint32_t i2 = *indices++;
+		uint32_t i3 = *indices++;
+
+		const double *p1 = &vertices[i1*3];
+		const double *p2 = &vertices[i2*3];
+		const double *p3 = &vertices[i3*3];
+
+		tesselate(p1,p2,p3,0);
+
+	  }
+	  free(vertices);
+	}
+	else
+	{
+	  uint32_t vcount = mVertices->getVcount();
+	  float *vertices = (float *)malloc(sizeof(float)*vcount*3);
+	  memcpy(vertices,mVertices->getVerticesFloat(),sizeof(float)*vcount*3);
+
+
+	  for (uint32_t i=0; i<tcount; i++)
+	  {
+		uint32_t i1 = *indices++;
+		uint32_t i2 = *indices++;
+		uint32_t i3 = *indices++;
+
+		const float *p1 = &vertices[i1*3];
+		const float *p2 = &vertices[i2*3];
+		const float *p3 = &vertices[i3*3];
+
+		tesselate(p1,p2,p3,0);
+
+	  }
+	  free(vertices);
+	}
+
+	outcount = (uint32_t)(mIndices.size()/3);
+	ret = &mIndices[0];
+
+
+	return ret;
+  }
+
+  void tesselate(const float *p1,const float *p2,const float *p3,uint32_t recurse)
+  {
+	bool split = false;
+	float l1,l2,l3;
+
+	l1 = l2 = l3 = 0;
+
+	if ( recurse < mMaxDepth )
+	{
+	  l1 = fm_distanceSquared(p1,p2);
+		l2 = fm_distanceSquared(p2,p3);
+		l3 = fm_distanceSquared(p3,p1);
+
+	  if (  l1 > mLongEdge || l2 > mLongEdge || l3 > mLongEdge )
+		split = true;
+
+	}
+
+	if ( split )
+	{
+		uint32_t edge;
+
+		if ( l1 >= l2 && l1 >= l3 )
+			edge = 0;
+		else if ( l2 >= l1 && l2 >= l3 )
+			edge = 1;
+		else
+			edge = 2;
+
+			float splits[3];
+
+		switch ( edge )
+		{
+			case 0:
+				{
+			fm_lerp(p1,p2,splits,0.5f);
+			tesselate(p1,splits,p3, recurse+1 );
+			tesselate(splits,p2,p3, recurse+1 );
+				}
+				break;
+			case 1:
+				{
+			fm_lerp(p2,p3,splits,0.5f);
+			tesselate(p1,p2,splits, recurse+1 );
+			tesselate(p1,splits,p3, recurse+1 );
+				}
+				break;
+			case 2:
+				{
+					fm_lerp(p3,p1,splits,0.5f);
+			tesselate(p1,p2,splits, recurse+1 );
+			tesselate(splits,p2,p3, recurse+1 );
+				}
+				break;
+		}
+	}
+	else
+	{
+	  bool newp;
+
+	  uint32_t i1 = mVertices->getIndex(p1,newp);
+	  uint32_t i2 = mVertices->getIndex(p2,newp);
+	  uint32_t i3 = mVertices->getIndex(p3,newp);
+
+	  mIndices.push_back(i1);
+	  mIndices.push_back(i2);
+	  mIndices.push_back(i3);
+	}
+
+  }
+
+  void tesselate(const double *p1,const double *p2,const double *p3,uint32_t recurse)
+  {
+	bool split = false;
+	double l1,l2,l3;
+
+	l1 = l2 = l3 = 0;
+
+	if ( recurse < mMaxDepth )
+	{
+	  l1 = fm_distanceSquared(p1,p2);
+		l2 = fm_distanceSquared(p2,p3);
+		l3 = fm_distanceSquared(p3,p1);
+
+	  if (  l1 > mLongEdgeD || l2 > mLongEdgeD || l3 > mLongEdgeD )
+		split = true;
+
+	}
+
+	if ( split )
+	{
+		uint32_t edge;
+
+		if ( l1 >= l2 && l1 >= l3 )
+			edge = 0;
+		else if ( l2 >= l1 && l2 >= l3 )
+			edge = 1;
+		else
+			edge = 2;
+
+			double splits[3];
+
+		switch ( edge )
+		{
+			case 0:
+				{
+			fm_lerp(p1,p2,splits,0.5);
+			tesselate(p1,splits,p3, recurse+1 );
+			tesselate(splits,p2,p3, recurse+1 );
+				}
+				break;
+			case 1:
+				{
+			fm_lerp(p2,p3,splits,0.5);
+			tesselate(p1,p2,splits, recurse+1 );
+			tesselate(p1,splits,p3, recurse+1 );
+				}
+				break;
+			case 2:
+				{
+					fm_lerp(p3,p1,splits,0.5);
+			tesselate(p1,p2,splits, recurse+1 );
+			tesselate(splits,p2,p3, recurse+1 );
+				}
+				break;
+		}
+	}
+	else
+	{
+	  bool newp;
+
+	  uint32_t i1 = mVertices->getIndex(p1,newp);
+	  uint32_t i2 = mVertices->getIndex(p2,newp);
+	  uint32_t i3 = mVertices->getIndex(p3,newp);
+
+	  mIndices.push_back(i1);
+	  mIndices.push_back(i2);
+	  mIndices.push_back(i3);
+	}
+
+  }
+
+private:
+  float           mLongEdge;
+  double          mLongEdgeD;
+  fm_VertexIndex *mVertices;
+  UintVector    mIndices;
+  uint32_t          mMaxDepth;
+};
+
+fm_Tesselate * fm_createTesselate(void)
+{
+  Myfm_Tesselate *m = new Myfm_Tesselate;
+  return static_cast< fm_Tesselate * >(m);
+}
+
+void           fm_releaseTesselate(fm_Tesselate *t)
+{
+  Myfm_Tesselate *m = static_cast< Myfm_Tesselate *>(t);
+  delete m;
+}
+
+#endif
+
+
+#ifndef RAY_ABB_INTERSECT
+
+#define RAY_ABB_INTERSECT
+
+//! Integer representation of a floating-point value.
+#define IR(x)	((uint32_t&)x)
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+*	A method to compute a ray-AABB intersection.
+*	Original code by Andrew Woo, from "Graphics Gems", Academic Press, 1990
+*	Optimized code by Pierre Terdiman, 2000 (~20-30% faster on my Celeron 500)
+*	Epsilon value added by Klaus Hartmann. (discarding it saves a few cycles only)
+*
+*	Hence this version is faster as well as more robust than the original one.
+*
+*	Should work provided:
+*	1) the integer representation of 0.0f is 0x00000000
+*	2) the sign bit of the float is the most significant one
+*
+*	Report bugs: p.terdiman@codercorner.com
+*
+*	\param		aabb		[in] the axis-aligned bounding box
+*	\param		origin		[in] ray origin
+*	\param		dir			[in] ray direction
+*	\param		coord		[out] impact coordinates
+*	\return		true if ray intersects AABB
+*/
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+#define RAYAABB_EPSILON 0.00001f
+bool fm_intersectRayAABB(const float MinB[3],const float MaxB[3],const float origin[3],const float dir[3],float coord[3])
+{
+  bool Inside = true;
+  float MaxT[3];
+  MaxT[0]=MaxT[1]=MaxT[2]=-1.0f;
+
+  // Find candidate planes.
+  for(uint32_t i=0;i<3;i++)
+  {
+	if(origin[i] < MinB[i])
+	{
+	  coord[i]	= MinB[i];
+	  Inside		= false;
+
+	  // Calculate T distances to candidate planes
+	  if(IR(dir[i]))	MaxT[i] = (MinB[i] - origin[i]) / dir[i];
+	}
+	else if(origin[i] > MaxB[i])
+	{
+	  coord[i]	= MaxB[i];
+	  Inside		= false;
+
+	  // Calculate T distances to candidate planes
+	  if(IR(dir[i]))	MaxT[i] = (MaxB[i] - origin[i]) / dir[i];
+	}
+  }
+
+  // Ray origin inside bounding box
+  if(Inside)
+  {
+	coord[0] = origin[0];
+	coord[1] = origin[1];
+	coord[2] = origin[2];
+	return true;
+  }
+
+  // Get largest of the maxT's for final choice of intersection
+  uint32_t WhichPlane = 0;
+  if(MaxT[1] > MaxT[WhichPlane])	WhichPlane = 1;
+  if(MaxT[2] > MaxT[WhichPlane])	WhichPlane = 2;
+
+  // Check final candidate actually inside box
+  if(IR(MaxT[WhichPlane])&0x80000000) return false;
+
+  for(uint32_t i=0;i<3;i++)
+  {
+	if(i!=WhichPlane)
+	{
+	  coord[i] = origin[i] + MaxT[WhichPlane] * dir[i];
+#ifdef RAYAABB_EPSILON
+	  if(coord[i] < MinB[i] - RAYAABB_EPSILON || coord[i] > MaxB[i] + RAYAABB_EPSILON)	return false;
+#else
+	  if(coord[i] < MinB[i] || coord[i] > MaxB[i])	return false;
+#endif
+	}
+  }
+  return true;	// ray hits box
+}
+
+bool fm_intersectLineSegmentAABB(const float bmin[3],const float bmax[3],const float p1[3],const float p2[3],float intersect[3])
+{
+  bool ret = false;
+
+  float dir[3];
+  dir[0] = p2[0] - p1[0];
+  dir[1] = p2[1] - p1[1];
+  dir[2] = p2[2] - p1[2];
+  float dist = fm_normalize(dir);
+  if ( dist > RAYAABB_EPSILON )
+  {
+	ret = fm_intersectRayAABB(bmin,bmax,p1,dir,intersect);
+	if ( ret )
+	{
+	  float d = fm_distanceSquared(p1,intersect);
+	  if ( d  > (dist*dist) )
+	  {
+		ret = false;
+	  }
+	}
+  }
+  return ret;
+}
+
+#endif
+
+#ifndef OBB_TO_AABB
+
+#define OBB_TO_AABB
+
+#pragma warning(disable:4100)
+
+void    fm_OBBtoAABB(const float /*obmin*/[3],const float /*obmax*/[3],const float /*matrix*/[16],float /*abmin*/[3],float /*abmax*/[3])
+{
+  assert(0); // not yet implemented.
+}
+
+
+const REAL * computePos(uint32_t index,const REAL *vertices,uint32_t vstride)
+{
+  const char *tmp = (const char *)vertices;
+  tmp+=(index*vstride);
+  return (const REAL*)tmp;
+}
+
+void computeNormal(uint32_t index,REAL *normals,uint32_t nstride,const REAL *normal)
+{
+  char *tmp = (char *)normals;
+  tmp+=(index*nstride);
+  REAL *dest = (REAL *)tmp;
+  dest[0]+=normal[0];
+  dest[1]+=normal[1];
+  dest[2]+=normal[2];
+}
+
+void fm_computeMeanNormals(uint32_t vcount,       // the number of vertices
+						   const REAL *vertices,     // the base address of the vertex position data.
+						   uint32_t vstride,      // the stride between position data.
+						   REAL *normals,            // the base address  of the destination for mean vector normals
+						   uint32_t nstride,      // the stride between normals
+						   uint32_t tcount,       // the number of triangles
+						   const uint32_t *indices)     // the triangle indices
+{
+
+  // Step #1 : Zero out the vertex normals
+  char *dest = (char *)normals;
+  for (uint32_t i=0; i<vcount; i++)
+  {
+	REAL *n = (REAL *)dest;
+	n[0] = 0;
+	n[1] = 0;
+	n[2] = 0;
+	dest+=nstride;
+  }
+
+  // Step #2 : Compute the face normals and accumulate them
+  const uint32_t *scan = indices;
+  for (uint32_t i=0; i<tcount; i++)
+  {
+
+	uint32_t i1 = *scan++;
+	uint32_t i2 = *scan++;
+	uint32_t i3 = *scan++;
+
+	const REAL *p1 = computePos(i1,vertices,vstride);
+	const REAL *p2 = computePos(i2,vertices,vstride);
+	const REAL *p3 = computePos(i3,vertices,vstride);
+
+	REAL normal[3];
+	fm_computePlane(p3,p2,p1,normal);
+
+	computeNormal(i1,normals,nstride,normal);
+	computeNormal(i2,normals,nstride,normal);
+	computeNormal(i3,normals,nstride,normal);
+  }
+
+
+  // Normalize the accumulated normals
+  dest = (char *)normals;
+  for (uint32_t i=0; i<vcount; i++)
+  {
+	REAL *n = (REAL *)dest;
+	fm_normalize(n);
+	dest+=nstride;
+  }
+
+}
+
+#endif
+
+
+#define BIGNUMBER 100000000.0  		/* hundred million */
+
+static inline void Set(REAL *n,REAL x,REAL y,REAL z)
+{
+	n[0] = x;
+	n[1] = y;
+	n[2] = z;
+};
+
+static inline void Copy(REAL *dest,const REAL *source)
+{
+	dest[0] = source[0];
+	dest[1] = source[1];
+	dest[2] = source[2];
+}
+
+
+REAL  fm_computeBestFitSphere(uint32_t vcount,const REAL *points,uint32_t pstride,REAL *center)
+{
+	REAL radius;
+	REAL radius2;
+
+	REAL xmin[3];
+	REAL xmax[3];
+	REAL ymin[3];
+	REAL ymax[3];
+	REAL zmin[3];
+	REAL zmax[3];
+	REAL dia1[3];
+	REAL dia2[3];
+
+	/* FIRST PASS: find 6 minima/maxima points */
+	Set(xmin,BIGNUMBER,BIGNUMBER,BIGNUMBER);
+	Set(xmax,-BIGNUMBER,-BIGNUMBER,-BIGNUMBER);
+	Set(ymin,BIGNUMBER,BIGNUMBER,BIGNUMBER);
+	Set(ymax,-BIGNUMBER,-BIGNUMBER,-BIGNUMBER);
+	Set(zmin,BIGNUMBER,BIGNUMBER,BIGNUMBER);
+	Set(zmax,-BIGNUMBER,-BIGNUMBER,-BIGNUMBER);
+
+	{
+		const char *scan = (const char *)points;
+		for (uint32_t i=0; i<vcount; i++)
+		{
+			const REAL *caller_p = (const REAL *)scan;
+			if (caller_p[0]<xmin[0])
+				Copy(xmin,caller_p); /* New xminimum point */
+			if (caller_p[0]>xmax[0])
+				Copy(xmax,caller_p);
+			if (caller_p[1]<ymin[1])
+				Copy(ymin,caller_p);
+			if (caller_p[1]>ymax[1])
+				Copy(ymax,caller_p);
+			if (caller_p[2]<zmin[2])
+				Copy(zmin,caller_p);
+			if (caller_p[2]>zmax[2])
+				Copy(zmax,caller_p);
+			scan+=pstride;
+		}
+	}
+
+	/* Set xspan = distance between the 2 points xmin & xmax (squared) */
+	REAL dx = xmax[0] - xmin[0];
+	REAL dy = xmax[1] - xmin[1];
+	REAL dz = xmax[2] - xmin[2];
+	REAL xspan = dx*dx + dy*dy + dz*dz;
+
+/* Same for y & z spans */
+	dx = ymax[0] - ymin[0];
+	dy = ymax[1] - ymin[1];
+	dz = ymax[2] - ymin[2];
+	REAL yspan = dx*dx + dy*dy + dz*dz;
+
+	dx = zmax[0] - zmin[0];
+	dy = zmax[1] - zmin[1];
+	dz = zmax[2] - zmin[2];
+	REAL zspan = dx*dx + dy*dy + dz*dz;
+
+	/* Set points dia1 & dia2 to the maximally separated pair */
+	Copy(dia1,xmin);
+	Copy(dia2,xmax); /* assume xspan biggest */
+	REAL maxspan = xspan;
+
+	if (yspan>maxspan)
+	{
+		maxspan = yspan;
+		Copy(dia1,ymin);
+		Copy(dia2,ymax);
+	}
+
+	if (zspan>maxspan)
+	{
+		maxspan = zspan;
+		Copy(dia1,zmin);
+		Copy(dia2,zmax);
+	}
+
+
+	/* dia1,dia2 is a diameter of initial sphere */
+	/* calc initial center */
+	center[0] = (dia1[0]+dia2[0])*0.5f;
+	center[1] = (dia1[1]+dia2[1])*0.5f;
+	center[2] = (dia1[2]+dia2[2])*0.5f;
+
+	/* calculate initial radius**2 and radius */
+
+	dx = dia2[0]-center[0]; /* x component of radius vector */
+	dy = dia2[1]-center[1]; /* y component of radius vector */
+	dz = dia2[2]-center[2]; /* z component of radius vector */
+
+	radius2 = dx*dx + dy*dy + dz*dz;
+	radius = REAL(sqrt(radius2));
+
+	/* SECOND PASS: increment current sphere */
+	{
+		const char *scan = (const char *)points;
+		for (uint32_t i=0; i<vcount; i++)
+		{
+			const REAL *caller_p = (const REAL *)scan;
+			dx = caller_p[0]-center[0];
+			dy = caller_p[1]-center[1];
+			dz = caller_p[2]-center[2];
+			REAL old_to_p_sq = dx*dx + dy*dy + dz*dz;
+			if (old_to_p_sq > radius2) 	/* do r**2 test first */
+			{ 	/* this point is outside of current sphere */
+				REAL old_to_p = REAL(sqrt(old_to_p_sq));
+				/* calc radius of new sphere */
+				radius = (radius + old_to_p) * 0.5f;
+				radius2 = radius*radius; 	/* for next r**2 compare */
+				REAL old_to_new = old_to_p - radius;
+				/* calc center of new sphere */
+				REAL recip = 1.0f /old_to_p;
+				REAL cx = (radius*center[0] + old_to_new*caller_p[0]) * recip;
+				REAL cy = (radius*center[1] + old_to_new*caller_p[1]) * recip;
+				REAL cz = (radius*center[2] + old_to_new*caller_p[2]) * recip;
+				Set(center,cx,cy,cz);
+				scan+=pstride;
+			}
+		}
+	}
+	return radius;
+}
+
+
+void fm_computeBestFitCapsule(uint32_t vcount,const REAL *points,uint32_t pstride,REAL &radius,REAL &height,REAL matrix[16],bool bruteForce)
+{
+  REAL sides[3];
+  REAL omatrix[16];
+  fm_computeBestFitOBB(vcount,points,pstride,sides,omatrix,bruteForce);
+
+  int32_t axis = 0;
+  if ( sides[0] > sides[1] && sides[0] > sides[2] )
+	axis = 0;
+  else if ( sides[1] > sides[0] && sides[1] > sides[2] )
+	axis = 1;
+  else 
+	axis = 2;
+
+  REAL localTransform[16];
+
+  REAL maxDist = 0;
+  REAL maxLen = 0;
+
+  switch ( axis )
+  {
+	case 0:
+	  {
+		fm_eulerMatrix(0,0,FM_PI/2,localTransform);
+		fm_matrixMultiply(localTransform,omatrix,matrix);
+
+		const uint8_t *scan = (const uint8_t *)points;
+		for (uint32_t i=0; i<vcount; i++)
+		{
+		  const REAL *p = (const REAL *)scan;
+		  REAL t[3];
+		  fm_inverseRT(omatrix,p,t);
+		  REAL dist = t[1]*t[1]+t[2]*t[2];
+		  if ( dist > maxDist )
+		  {
+			maxDist = dist;
+		  }
+		  REAL l = (REAL) fabs(t[0]);
+		  if ( l > maxLen )
+		  {
+			maxLen = l;
+		  }
+		  scan+=pstride;
+		}
+	  }
+	  height = sides[0];
+	  break;
+	case 1:
+	  {
+		fm_eulerMatrix(0,FM_PI/2,0,localTransform);
+		fm_matrixMultiply(localTransform,omatrix,matrix);
+
+		const uint8_t *scan = (const uint8_t *)points;
+		for (uint32_t i=0; i<vcount; i++)
+		{
+		  const REAL *p = (const REAL *)scan;
+		  REAL t[3];
+		  fm_inverseRT(omatrix,p,t);
+		  REAL dist = t[0]*t[0]+t[2]*t[2];
+		  if ( dist > maxDist )
+		  {
+			maxDist = dist;
+		  }
+		  REAL l = (REAL) fabs(t[1]);
+		  if ( l > maxLen )
+		  {
+			maxLen = l;
+		  }
+		  scan+=pstride;
+		}
+	  }
+	  height = sides[1];
+	  break;
+	case 2:
+	  {
+		fm_eulerMatrix(FM_PI/2,0,0,localTransform);
+		fm_matrixMultiply(localTransform,omatrix,matrix);
+
+		const uint8_t *scan = (const uint8_t *)points;
+		for (uint32_t i=0; i<vcount; i++)
+		{
+		  const REAL *p = (const REAL *)scan;
+		  REAL t[3];
+		  fm_inverseRT(omatrix,p,t);
+		  REAL dist = t[0]*t[0]+t[1]*t[1];
+		  if ( dist > maxDist )
+		  {
+			maxDist = dist;
+		  }
+		  REAL l = (REAL) fabs(t[2]);
+		  if ( l > maxLen )
+		  {
+			maxLen = l;
+		  }
+		  scan+=pstride;
+		}
+	  }
+	  height = sides[2];
+	  break;
+  }
+  radius = (REAL)sqrt(maxDist);
+  height = (maxLen*2)-(radius*2);
+}
+
+
+//************* Triangulation
+
+#ifndef TRIANGULATE_H
+
+#define TRIANGULATE_H
+
+typedef uint32_t TU32;
+
+class TVec
+{
+public:
+	TVec(double _x,double _y,double _z) { x = _x; y = _y; z = _z; };
+	TVec(void) { };
+
+  double x;
+  double y;
+  double z;
+};
+
+typedef std::vector< TVec >  TVecVector;
+typedef std::vector< TU32 >  TU32Vector;
+
+class CTriangulator
+{
+public:
+	///     Default constructor
+	CTriangulator();
+
+	///     Default destructor
+	virtual ~CTriangulator();
+
+	///     Triangulates the contour
+	void triangulate(TU32Vector &indices);
+
+	///     Returns the given point in the triangulator array
+	inline TVec get(const TU32 id) { return mPoints[id]; }
+
+	virtual void reset(void)
+	{
+		mInputPoints.clear();
+		mPoints.clear();
+		mIndices.clear();
+	}
+
+	virtual void addPoint(double x,double y,double z)
+	{
+		TVec v(x,y,z);
+		// update bounding box...
+		if ( mInputPoints.empty() )
+		{
+			mMin = v;
+			mMax = v;
+		}
+		else
+		{
+			if ( x < mMin.x ) mMin.x = x;
+			if ( y < mMin.y ) mMin.y = y;
+			if ( z < mMin.z ) mMin.z = z;
+
+			if ( x > mMax.x ) mMax.x = x;
+			if ( y > mMax.y ) mMax.y = y;
+			if ( z > mMax.z ) mMax.z = z;
+		}
+		mInputPoints.push_back(v);
+	}
+
+	// Triangulation happens in 2d.  We could inverse transform the polygon around the normal direction, or we just use the two most signficant axes
+	// Here we find the two longest axes and use them to triangulate.  Inverse transforming them would introduce more doubleing point error and isn't worth it.
+	virtual uint32_t * triangulate(uint32_t &tcount,double epsilon)
+	{
+		uint32_t *ret = 0;
+		tcount = 0;
+		mEpsilon = epsilon;
+
+		if ( !mInputPoints.empty() )
+		{
+			mPoints.clear();
+
+		  double dx = mMax.x - mMin.x; // locate the first, second and third longest edges and store them in i1, i2, i3
+		  double dy = mMax.y - mMin.y;
+		  double dz = mMax.z - mMin.z;
+
+		  uint32_t i1,i2,i3;
+
+		  if ( dx > dy && dx > dz )
+		  {
+			  i1 = 0;
+			  if ( dy > dz )
+			  {
+				  i2 = 1;
+				  i3 = 2;
+			  }
+			  else
+			  {
+				  i2 = 2;
+				  i3 = 1;
+			  }
+		  }
+		  else if ( dy > dx && dy > dz )
+		  {
+			  i1 = 1;
+			  if ( dx > dz )
+			  {
+				  i2 = 0;
+				  i3 = 2;
+			  }
+			  else
+			  {
+				  i2 = 2;
+				  i3 = 0;
+			  }
+		  }
+		  else
+		  {
+			  i1 = 2;
+			  if ( dx > dy )
+			  {
+				  i2 = 0;
+				  i3 = 1;
+			  }
+			  else
+			  {
+				  i2 = 1;
+				  i3 = 0;
+			  }
+		  }
+
+		  uint32_t pcount = (uint32_t)mInputPoints.size();
+		  const double *points = &mInputPoints[0].x;
+		  for (uint32_t i=0; i<pcount; i++)
+		  {
+			TVec v( points[i1], points[i2], points[i3] );
+			mPoints.push_back(v);
+			points+=3;
+		  }
+
+		  mIndices.clear();
+		  triangulate(mIndices);
+		  tcount = (uint32_t)mIndices.size()/3;
+		  if ( tcount )
+		  {
+			  ret = &mIndices[0];
+		  }
+		}
+		return ret;
+	}
+
+	virtual const double * getPoint(uint32_t index)
+	{
+		return &mInputPoints[index].x;
+	}
+
+
+private:
+	double                  mEpsilon;
+	TVec                   mMin;
+	TVec                   mMax;
+	TVecVector             mInputPoints;
+	TVecVector             mPoints;
+	TU32Vector             mIndices;
+
+	///     Tests if a point is inside the given triangle
+	bool _insideTriangle(const TVec& A, const TVec& B, const TVec& C,const TVec& P);
+
+	///     Returns the area of the contour
+	double _area();
+
+	bool _snip(int32_t u, int32_t v, int32_t w, int32_t n, int32_t *V);
+
+	///     Processes the triangulation
+	void _process(TU32Vector &indices);
+
+};
+
+///     Default constructor
+CTriangulator::CTriangulator(void)
+{
+}
+
+///     Default destructor
+CTriangulator::~CTriangulator()
+{
+}
+
+///     Triangulates the contour
+void CTriangulator::triangulate(TU32Vector &indices)
+{
+	_process(indices);
+}
+
+///     Processes the triangulation
+void CTriangulator::_process(TU32Vector &indices)
+{
+	const int32_t n = (const int32_t)mPoints.size();
+	if (n < 3)
+		return;
+	int32_t *V = (int32_t *)malloc(sizeof(int32_t)*n);
+
+	bool flipped = false;
+
+	if (0.0f < _area())
+	{
+		for (int32_t v = 0; v < n; v++)
+			V[v] = v;
+	}
+	else
+	{
+		flipped = true;
+		for (int32_t v = 0; v < n; v++)
+			V[v] = (n - 1) - v;
+	}
+
+	int32_t nv = n;
+	int32_t count = 2 * nv;
+	for (int32_t m = 0, v = nv - 1; nv > 2;)
+	{
+		if (0 >= (count--))
+			return;
+
+		int32_t u = v;
+		if (nv <= u)
+			u = 0;
+		v = u + 1;
+		if (nv <= v)
+			v = 0;
+		int32_t w = v + 1;
+		if (nv <= w)
+			w = 0;
+
+		if (_snip(u, v, w, nv, V))
+		{
+			int32_t a, b, c, s, t;
+			a = V[u];
+			b = V[v];
+			c = V[w];
+			if ( flipped )
+			{
+				indices.push_back(a);
+				indices.push_back(b);
+				indices.push_back(c);
+			}
+			else
+			{
+				indices.push_back(c);
+				indices.push_back(b);
+				indices.push_back(a);
+			}
+			m++;
+			for (s = v, t = v + 1; t < nv; s++, t++)
+				V[s] = V[t];
+			nv--;
+			count = 2 * nv;
+		}
+	}
+
+	free(V);
+}
+
+///     Returns the area of the contour
+double CTriangulator::_area()
+{
+	int32_t n = (uint32_t)mPoints.size();
+	double A = 0.0f;
+	for (int32_t p = n - 1, q = 0; q < n; p = q++)
+	{
+		const TVec &pval = mPoints[p];
+		const TVec &qval = mPoints[q];
+		A += pval.x * qval.y - qval.x * pval.y;
+	}
+	A*=0.5f;
+	return A;
+}
+
+bool CTriangulator::_snip(int32_t u, int32_t v, int32_t w, int32_t n, int32_t *V)
+{
+	int32_t p;
+
+	const TVec &A = mPoints[ V[u] ];
+	const TVec &B = mPoints[ V[v] ];
+	const TVec &C = mPoints[ V[w] ];
+
+	if (mEpsilon > (((B.x - A.x) * (C.y - A.y)) - ((B.y - A.y) * (C.x - A.x))) )
+		return false;
+
+	for (p = 0; p < n; p++)
+	{
+		if ((p == u) || (p == v) || (p == w))
+			continue;
+		const TVec &P = mPoints[ V[p] ];
+		if (_insideTriangle(A, B, C, P))
+			return false;
+	}
+	return true;
+}
+
+///     Tests if a point is inside the given triangle
+bool CTriangulator::_insideTriangle(const TVec& A, const TVec& B, const TVec& C,const TVec& P)
+{
+	double ax, ay, bx, by, cx, cy, apx, apy, bpx, bpy, cpx, cpy;
+	double cCROSSap, bCROSScp, aCROSSbp;
+
+	ax = C.x - B.x;  ay = C.y - B.y;
+	bx = A.x - C.x;  by = A.y - C.y;
+	cx = B.x - A.x;  cy = B.y - A.y;
+	apx = P.x - A.x;  apy = P.y - A.y;
+	bpx = P.x - B.x;  bpy = P.y - B.y;
+	cpx = P.x - C.x;  cpy = P.y - C.y;
+
+	aCROSSbp = ax * bpy - ay * bpx;
+	cCROSSap = cx * apy - cy * apx;
+	bCROSScp = bx * cpy - by * cpx;
+
+	return ((aCROSSbp >= 0.0f) && (bCROSScp >= 0.0f) && (cCROSSap >= 0.0f));
+}
+
+class Triangulate : public fm_Triangulate
+{
+public:
+  Triangulate(void)
+  {
+	mPointsFloat = 0;
+	mPointsDouble = 0;
+  }
+
+  virtual ~Triangulate(void)
+  {
+	reset();
+  }
+  void reset(void)
+  {
+	free(mPointsFloat);
+	free(mPointsDouble);
+	mPointsFloat = 0;
+	mPointsDouble = 0;
+  }
+
+  virtual const double *       triangulate3d(uint32_t pcount,
+											 const double *_points,
+											 uint32_t vstride,
+											 uint32_t &tcount,
+											 bool consolidate,
+											 double epsilon)
+  {
+	reset();
+
+	double *points = (double *)malloc(sizeof(double)*pcount*3);
+	if ( consolidate )
+	{
+	  pcount = fm_consolidatePolygon(pcount,_points,vstride,points,1-epsilon);
+	}
+	else
+	{
+	  double *dest = points;
+	  for (uint32_t i=0; i<pcount; i++)
+	  {
+		const double *src = fm_getPoint(_points,vstride,i);
+		dest[0] = src[0];
+		dest[1] = src[1];
+		dest[2] = src[2];
+		dest+=3;
+	  }
+	  vstride = sizeof(double)*3;
+	}
+
+	if ( pcount >= 3 )
+	{
+	  CTriangulator ct;
+	  for (uint32_t i=0; i<pcount; i++)
+	  {
+		const double *src = fm_getPoint(points,vstride,i);
+		ct.addPoint( src[0], src[1], src[2] );
+	  }
+	  uint32_t _tcount;
+	  uint32_t *indices = ct.triangulate(_tcount,epsilon);
+	  if ( indices )
+	  {
+		tcount = _tcount;
+		mPointsDouble = (double *)malloc(sizeof(double)*tcount*3*3);
+		double *dest = mPointsDouble;
+		for (uint32_t i=0; i<tcount; i++)
+		{
+		  uint32_t i1 = indices[i*3+0];
+		  uint32_t i2 = indices[i*3+1];
+		  uint32_t i3 = indices[i*3+2];
+		  const double *p1 = ct.getPoint(i1);
+		  const double *p2 = ct.getPoint(i2);
+		  const double *p3 = ct.getPoint(i3);
+
+		  dest[0] = p1[0];
+		  dest[1] = p1[1];
+		  dest[2] = p1[2];
+
+		  dest[3] = p2[0];
+		  dest[4] = p2[1];
+		  dest[5] = p2[2];
+
+		  dest[6] = p3[0];
+		  dest[7] = p3[1];
+		  dest[8] = p3[2];
+		  dest+=9;
+		}
+	  }
+	}
+	free(points);
+
+	return mPointsDouble;
+  }
+
+  virtual const float  *       triangulate3d(uint32_t pcount,
+											 const float  *points,
+											 uint32_t vstride,
+											 uint32_t &tcount,
+											 bool consolidate,
+											 float epsilon)
+  {
+	reset();
+
+	double *temp = (double *)malloc(sizeof(double)*pcount*3);
+	double *dest = temp;
+	for (uint32_t i=0; i<pcount; i++)
+	{
+	  const float *p = fm_getPoint(points,vstride,i);
+	  dest[0] = p[0];
+	  dest[1] = p[1];
+	  dest[2] = p[2];
+	  dest+=3;
+	}
+	const double *results = triangulate3d(pcount,temp,sizeof(double)*3,tcount,consolidate,epsilon);
+	if ( results )
+	{
+	  uint32_t fcount = tcount*3*3;
+	  mPointsFloat = (float *)malloc(sizeof(float)*tcount*3*3);
+	  for (uint32_t i=0; i<fcount; i++)
+	  {
+		mPointsFloat[i] = (float) results[i];
+	  }
+	  free(mPointsDouble);
+	  mPointsDouble = 0;
+	}
+	free(temp);
+
+	return mPointsFloat;
+  }
+
+private:
+  float *mPointsFloat;
+  double *mPointsDouble;
+};
+
+fm_Triangulate * fm_createTriangulate(void)
+{
+  Triangulate *t = new Triangulate;
+  return static_cast< fm_Triangulate *>(t);
+}
+
+void             fm_releaseTriangulate(fm_Triangulate *t)
+{
+  Triangulate *tt = static_cast< Triangulate *>(t);
+  delete tt;
+}
+
+#endif
+
+bool validDistance(const REAL *p1,const REAL *p2,REAL epsilon)
+{
+	bool ret = true;
+
+	REAL dx = p1[0] - p2[0];
+	REAL dy = p1[1] - p2[1];
+	REAL dz = p1[2] - p2[2];
+	REAL dist = dx*dx+dy*dy+dz*dz;
+	if ( dist < (epsilon*epsilon) )
+	{
+		ret = false;
+	}
+	return ret;
+}
+
+bool fm_isValidTriangle(const REAL *p1,const REAL *p2,const REAL *p3,REAL epsilon)
+{
+  bool ret = false;
+
+  if ( validDistance(p1,p2,epsilon) &&
+	   validDistance(p1,p3,epsilon) &&
+	   validDistance(p2,p3,epsilon) )
+  {
+
+	  REAL area = fm_computeArea(p1,p2,p3);
+	  if ( area > epsilon )
+	  {
+		REAL _vertices[3*3],vertices[64*3];
+
+		_vertices[0] = p1[0];
+		_vertices[1] = p1[1];
+		_vertices[2] = p1[2];
+
+		_vertices[3] = p2[0];
+		_vertices[4] = p2[1];
+		_vertices[5] = p2[2];
+
+		_vertices[6] = p3[0];
+		_vertices[7] = p3[1];
+		_vertices[8] = p3[2];
+
+		uint32_t pcount = fm_consolidatePolygon(3,_vertices,sizeof(REAL)*3,vertices,1-epsilon);
+		if ( pcount == 3 )
+		{
+		  ret = true;
+		}
+	  }
+  }
+  return ret;
+}
+
+
+void  fm_multiplyQuat(const REAL *left,const REAL *right,REAL *quat)
+{
+	REAL a,b,c,d;
+
+	a = left[3]*right[3] - left[0]*right[0] - left[1]*right[1] - left[2]*right[2];
+	b = left[3]*right[0] + right[3]*left[0] + left[1]*right[2] - right[1]*left[2];
+	c = left[3]*right[1] + right[3]*left[1] + left[2]*right[0] - right[2]*left[0];
+	d = left[3]*right[2] + right[3]*left[2] + left[0]*right[1] - right[0]*left[1];
+
+	quat[3] = a;
+	quat[0] = b;
+	quat[1] = c;
+	quat[2] = d;
+}
+
+bool  fm_computeCentroid(uint32_t vcount,     // number of input data points
+						 const REAL *points,     // starting address of points array.
+						 REAL *center)
+
+{
+	bool ret = false;
+	if ( vcount )
+	{
+		center[0] = 0;
+		center[1] = 0;
+		center[2] = 0;
+		const REAL *p = points;
+		for (uint32_t i=0; i<vcount; i++)
+		{
+			center[0]+=p[0];
+			center[1]+=p[1];
+			center[2]+=p[2];
+			p += 3;
+		}
+		REAL recip = 1.0f / (REAL)vcount;
+		center[0]*=recip;
+		center[1]*=recip;
+		center[2]*=recip;
+		ret = true;
+	}
+	return ret;
+}
+
+bool  fm_computeCentroid(uint32_t vcount,     // number of input data points
+	const REAL *points,     // starting address of points array.
+	uint32_t triCount,
+	const uint32_t *indices,
+	REAL *center)
+
+{
+	bool ret = false;
+	if (vcount)
+	{
+		center[0] = 0;
+		center[1] = 0;
+		center[2] = 0;
+
+		REAL numerator[3] = { 0, 0, 0 };
+		REAL denomintaor = 0;
+
+		for (uint32_t i = 0; i < triCount; i++)
+		{
+			uint32_t i1 = indices[i * 3 + 0];
+			uint32_t i2 = indices[i * 3 + 1];
+			uint32_t i3 = indices[i * 3 + 2];
+
+			const REAL *p1 = &points[i1 * 3];
+			const REAL *p2 = &points[i2 * 3];
+			const REAL *p3 = &points[i3 * 3];
+
+			// Compute the sum of the three positions
+			REAL sum[3];
+			sum[0] = p1[0] + p2[0] + p3[0];
+			sum[1] = p1[1] + p2[1] + p3[1];
+			sum[2] = p1[2] + p2[2] + p3[2];
+
+			// Compute the average of the three positions
+			sum[0] = sum[0] / 3;
+			sum[1] = sum[1] / 3;
+			sum[2] = sum[2] / 3;
+
+			// Compute the area of this triangle
+			REAL area = fm_computeArea(p1, p2, p3);
+
+			numerator[0]+= (sum[0] * area);
+			numerator[1]+= (sum[1] * area);
+			numerator[2]+= (sum[2] * area);
+
+			denomintaor += area;
+
+		}
+		REAL recip = 1 / denomintaor;
+		center[0] = numerator[0] * recip;
+		center[1] = numerator[1] * recip;
+		center[2] = numerator[2] * recip;
+		ret = true;
+	}
+	return ret;
+}
+
+
+#ifndef TEMPLATE_VEC3
+#define TEMPLATE_VEC3
+template <class Type> class Vec3
+{
+public:
+	Vec3(void)
+	{
+
+	}
+	Vec3(Type _x,Type _y,Type _z)
+	{
+		x = _x;
+		y = _y;
+		z = _z;
+	}
+	Type x;
+	Type y;
+	Type z;
+};
+#endif
+
+void fm_transformAABB(const REAL bmin[3],const REAL bmax[3],const REAL matrix[16],REAL tbmin[3],REAL tbmax[3])
+{
+	Vec3<REAL> box[8];
+	box[0] = Vec3< REAL >( bmin[0], bmin[1], bmin[2] );
+	box[1] = Vec3< REAL >( bmax[0], bmin[1], bmin[2] );
+	box[2] = Vec3< REAL >( bmax[0], bmax[1], bmin[2] );
+	box[3] = Vec3< REAL >( bmin[0], bmax[1], bmin[2] );
+	box[4] = Vec3< REAL >( bmin[0], bmin[1], bmax[2] );
+	box[5] = Vec3< REAL >( bmax[0], bmin[1], bmax[2] );
+	box[6] = Vec3< REAL >( bmax[0], bmax[1], bmax[2] );
+	box[7] = Vec3< REAL >( bmin[0], bmax[1], bmax[2] );
+	// transform all 8 corners of the box and then recompute a new AABB
+	for (unsigned int i=0; i<8; i++)
+	{
+		Vec3< REAL > &p = box[i];
+		fm_transform(matrix,&p.x,&p.x);
+		if ( i == 0 )
+		{
+			tbmin[0] = tbmax[0] = p.x;
+			tbmin[1] = tbmax[1] = p.y;
+			tbmin[2] = tbmax[2] = p.z;
+		}
+		else
+		{
+			if ( p.x < tbmin[0] ) tbmin[0] = p.x;
+			if ( p.y < tbmin[1] ) tbmin[1] = p.y;
+			if ( p.z < tbmin[2] ) tbmin[2] = p.z;
+			if ( p.x > tbmax[0] ) tbmax[0] = p.x;
+			if ( p.y > tbmax[1] ) tbmax[1] = p.y;
+			if ( p.z > tbmax[2] ) tbmax[2] = p.z;
+		}
+	}
+}
+
+REAL  fm_normalizeQuat(REAL n[4]) // normalize this quat
+{
+	REAL dx = n[0]*n[0];
+	REAL dy = n[1]*n[1];
+	REAL dz = n[2]*n[2];
+	REAL dw = n[3]*n[3];
+
+	REAL dist = dx*dx+dy*dy+dz*dz+dw*dw;
+
+	dist = (REAL)sqrt(dist);
+
+	REAL recip = 1.0f / dist;
+
+	n[0]*=recip;
+	n[1]*=recip;
+	n[2]*=recip;
+	n[3]*=recip;
+
+	return dist;
+}
+
+
+}; // end of namespace
diff --git a/thirdparty/vhacd/src/VHACD-ASYNC.cpp b/thirdparty/vhacd/src/VHACD-ASYNC.cpp
new file mode 100644
index 0000000000..baf309d6a1
--- /dev/null
+++ b/thirdparty/vhacd/src/VHACD-ASYNC.cpp
@@ -0,0 +1,334 @@
+#include "../public/VHACD.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <thread>
+#include <atomic>
+#include <mutex>
+#include <string>
+#include <float.h>
+
+#define ENABLE_ASYNC 1
+
+#define HACD_ALLOC(x) malloc(x)
+#define HACD_FREE(x) free(x)
+#define HACD_ASSERT(x) assert(x)
+
+namespace VHACD
+{
+
+class MyHACD_API : public VHACD::IVHACD, public VHACD::IVHACD::IUserCallback, VHACD::IVHACD::IUserLogger
+{
+public:
+	MyHACD_API(void)
+	{
+		mVHACD = VHACD::CreateVHACD();
+	}
+
+	virtual ~MyHACD_API(void)
+	{
+		releaseHACD();
+		Cancel();
+		mVHACD->Release();
+	}
+
+	
+	virtual bool Compute(const double* const _points,
+		const uint32_t countPoints,
+		const uint32_t* const _triangles,
+		const uint32_t countTriangles,
+		const Parameters& _desc) final
+	{
+#if ENABLE_ASYNC
+		Cancel(); // if we previously had a solution running; cancel it.
+		releaseHACD();
+
+		// We need to copy the input vertices and triangles into our own buffers so we can operate
+		// on them safely from the background thread.
+		mVertices = (double *)HACD_ALLOC(sizeof(double)*countPoints * 3);
+		mIndices = (uint32_t *)HACD_ALLOC(sizeof(uint32_t)*countTriangles * 3);
+		memcpy(mVertices, _points, sizeof(double)*countPoints * 3);
+		memcpy(mIndices, _triangles, sizeof(uint32_t)*countTriangles * 3);
+		mRunning = true;
+		mThread = new std::thread([this, countPoints, countTriangles, _desc]()
+		{
+			ComputeNow(mVertices, countPoints, mIndices, countTriangles, _desc);
+			mRunning = false;
+		});
+#else
+		releaseHACD();
+		ComputeNow(_points, countPoints, _triangles, countTriangles, _desc);
+#endif
+		return true;
+	}
+
+	bool ComputeNow(const double* const points,
+		const uint32_t countPoints,
+		const uint32_t* const triangles,
+		const uint32_t countTriangles,
+		const Parameters& _desc) 
+	{
+		uint32_t ret = 0;
+
+		mHullCount	= 0;
+		mCallback	= _desc.m_callback;
+		mLogger		= _desc.m_logger;
+
+		IVHACD::Parameters desc = _desc;
+		// Set our intercepting callback interfaces if non-null
+		desc.m_callback = desc.m_callback ? this : nullptr;
+		desc.m_logger = desc.m_logger ? this : nullptr;
+
+		if ( countPoints )
+		{
+			bool ok = mVHACD->Compute(points, countPoints, triangles, countTriangles, desc);
+			if (ok)
+			{
+				ret = mVHACD->GetNConvexHulls();
+				mHulls = new IVHACD::ConvexHull[ret];
+				for (uint32_t i = 0; i < ret; i++)
+				{
+					VHACD::IVHACD::ConvexHull vhull;
+					mVHACD->GetConvexHull(i, vhull);
+					VHACD::IVHACD::ConvexHull h;
+					h.m_nPoints = vhull.m_nPoints;
+					h.m_points = (double *)HACD_ALLOC(sizeof(double) * 3 * h.m_nPoints);
+					memcpy(h.m_points, vhull.m_points, sizeof(double) * 3 * h.m_nPoints);
+					h.m_nTriangles = vhull.m_nTriangles;
+					h.m_triangles = (uint32_t *)HACD_ALLOC(sizeof(uint32_t) * 3 * h.m_nTriangles);
+					memcpy(h.m_triangles, vhull.m_triangles, sizeof(uint32_t) * 3 * h.m_nTriangles);
+					h.m_volume = vhull.m_volume;
+					h.m_center[0] = vhull.m_center[0];
+					h.m_center[1] = vhull.m_center[1];
+					h.m_center[2] = vhull.m_center[2];
+					mHulls[i] = h;
+					if (mCancel)
+					{
+						ret = 0;
+						break;
+					}
+				}
+			}
+		}
+
+		mHullCount = ret;
+		return ret ? true : false;
+	}
+
+	void releaseHull(VHACD::IVHACD::ConvexHull &h)
+	{
+		HACD_FREE((void *)h.m_triangles);
+		HACD_FREE((void *)h.m_points);
+		h.m_triangles = nullptr;
+		h.m_points = nullptr;
+	}
+
+	virtual void GetConvexHull(const uint32_t index, VHACD::IVHACD::ConvexHull& ch) const final
+	{
+		if ( index < mHullCount )
+		{
+			ch = mHulls[index];
+		}
+	}
+
+	void	releaseHACD(void) // release memory associated with the last HACD request
+	{
+		for (uint32_t i=0; i<mHullCount; i++)
+		{
+			releaseHull(mHulls[i]);
+		}
+		delete[]mHulls;
+		mHulls = nullptr;
+		mHullCount = 0;
+		HACD_FREE(mVertices);
+		mVertices = nullptr;
+		HACD_FREE(mIndices);
+		mIndices = nullptr;
+	}
+
+
+	virtual void release(void) // release the HACD_API interface
+	{
+		delete this;
+	}
+
+	virtual uint32_t	getHullCount(void)
+	{
+		return mHullCount;
+	}
+
+	virtual void Cancel() final
+	{
+		if (mRunning)
+		{
+			mVHACD->Cancel();	// Set the cancel signal to the base VHACD
+		}
+		if (mThread)
+		{
+			mThread->join();	// Wait for the thread to fully exit before we delete the instance
+			delete mThread;
+			mThread = nullptr;
+			Log("Convex Decomposition thread canceled\n");
+		}
+		mCancel = false; // clear the cancel semaphore
+	}
+
+	virtual bool Compute(const float* const points,
+		const uint32_t countPoints,
+		const uint32_t* const triangles,
+		const uint32_t countTriangles,
+		const Parameters& params) final
+	{
+
+		double *vertices = (double *)HACD_ALLOC(sizeof(double)*countPoints * 3);
+		const float *source = points;
+		double *dest = vertices;
+		for (uint32_t i = 0; i < countPoints; i++)
+		{
+			dest[0] = source[0];
+			dest[1] = source[1];
+			dest[2] = source[2];
+			dest += 3;
+			source += 3;
+		}
+
+		bool ret =  Compute(vertices, countPoints, triangles, countTriangles, params);
+		HACD_FREE(vertices);
+		return ret;
+	}
+
+	virtual uint32_t GetNConvexHulls() const final
+	{
+		processPendingMessages();
+		return mHullCount;
+	}
+
+	virtual void Clean(void) final // release internally allocated memory
+	{
+		Cancel();
+		releaseHACD();
+		mVHACD->Clean();
+	}
+
+	virtual void Release(void) final  // release IVHACD
+	{
+		delete this;
+	}
+
+	virtual bool OCLInit(void* const oclDevice,
+		IVHACD::IUserLogger* const logger = 0) final
+	{
+		return mVHACD->OCLInit(oclDevice, logger);
+	}
+		
+	virtual bool OCLRelease(IVHACD::IUserLogger* const logger = 0) final
+	{
+		return mVHACD->OCLRelease(logger);
+	}
+
+	virtual void Update(const double overallProgress,
+		const double stageProgress,
+		const double operationProgress,
+		const char* const stage,
+		const char* const operation) final
+	{
+		mMessageMutex.lock();
+		mHaveUpdateMessage = true;
+		mOverallProgress = overallProgress;
+		mStageProgress = stageProgress;
+		mOperationProgress = operationProgress;
+		mStage = std::string(stage);
+		mOperation = std::string(operation);
+		mMessageMutex.unlock();
+	}
+
+	virtual void Log(const char* const msg) final
+	{
+		mMessageMutex.lock();
+		mHaveLogMessage = true;
+		mMessage = std::string(msg);
+		mMessageMutex.unlock();
+	}
+
+	virtual bool IsReady(void) const final
+	{
+		processPendingMessages();
+		return !mRunning; 
+	}
+
+	// As a convenience for the calling application we only send it update and log messages from it's own main
+	// thread.  This reduces the complexity burden on the caller by making sure it only has to deal with log
+	// messages in it's main application thread.
+	void processPendingMessages(void) const
+	{
+		// If we have a new update message and the user has specified a callback we send the message and clear the semaphore
+		if (mHaveUpdateMessage && mCallback)
+		{
+			mMessageMutex.lock();
+			mCallback->Update(mOverallProgress, mStageProgress, mOperationProgress, mStage.c_str(), mOperation.c_str());
+			mHaveUpdateMessage = false;
+			mMessageMutex.unlock();
+		}
+		// If we have a new log message and the user has specified a callback we send the message and clear the semaphore
+		if (mHaveLogMessage && mLogger)
+		{
+			mMessageMutex.lock();
+			mLogger->Log(mMessage.c_str());
+			mHaveLogMessage = false;
+			mMessageMutex.unlock();
+		}
+	}
+
+	// Will compute the center of mass of the convex hull decomposition results and return it
+	// in 'centerOfMass'.  Returns false if the center of mass could not be computed.
+	virtual bool ComputeCenterOfMass(double centerOfMass[3]) const
+	{
+		bool ret = false;
+
+		centerOfMass[0] = 0;
+		centerOfMass[1] = 0;
+		centerOfMass[2] = 0;
+
+		if (mVHACD && IsReady() )
+		{
+			ret = mVHACD->ComputeCenterOfMass(centerOfMass);
+		}
+		return ret;
+	}
+
+private:
+	double							*mVertices{ nullptr };
+	uint32_t						*mIndices{ nullptr };
+	std::atomic< uint32_t>			mHullCount{ 0 };
+	VHACD::IVHACD::ConvexHull		*mHulls{ nullptr };
+	VHACD::IVHACD::IUserCallback	*mCallback{ nullptr };
+	VHACD::IVHACD::IUserLogger		*mLogger{ nullptr };
+	VHACD::IVHACD					*mVHACD{ nullptr };
+	std::thread						*mThread{ nullptr };
+	std::atomic< bool >				mRunning{ false };
+	std::atomic<bool>				mCancel{ false };
+
+	// Thread safe caching mechanism for messages and update status.
+	// This is so that caller always gets messages in his own thread
+	// Member variables are marked as 'mutable' since the message dispatch function
+	// is called from const query methods.
+	mutable std::mutex						mMessageMutex;
+	mutable std::atomic< bool >				mHaveUpdateMessage{ false };
+	mutable std::atomic< bool >				mHaveLogMessage{ false };
+	mutable double							mOverallProgress{ 0 };
+	mutable double							mStageProgress{ 0 };
+	mutable double							mOperationProgress{ 0 };
+	mutable std::string						mStage;
+	mutable std::string						mOperation;
+	mutable std::string						mMessage;
+};
+
+IVHACD* CreateVHACD_ASYNC(void)
+{
+	MyHACD_API *m = new MyHACD_API;
+	return static_cast<IVHACD *>(m);
+}
+
+
+}; // end of VHACD namespace
+
diff --git a/thirdparty/vhacd/src/VHACD.cpp b/thirdparty/vhacd/src/VHACD.cpp
new file mode 100644
index 0000000000..54cc6e3761
--- /dev/null
+++ b/thirdparty/vhacd/src/VHACD.cpp
@@ -0,0 +1,1589 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include <algorithm>
+#include <fstream>
+#include <iomanip>
+#include <limits>
+#include <sstream>
+#if _OPENMP
+#include <omp.h>
+#endif // _OPENMP
+
+#include "../public/VHACD.h"
+#include "btConvexHullComputer.h"
+#include "vhacdICHull.h"
+#include "vhacdMesh.h"
+#include "vhacdSArray.h"
+#include "vhacdTimer.h"
+#include "vhacdVHACD.h"
+#include "vhacdVector.h"
+#include "vhacdVolume.h"
+#include "FloatMath.h"
+
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+#define ABS(a) (((a) < 0) ? -(a) : (a))
+#define ZSGN(a) (((a) < 0) ? -1 : (a) > 0 ? 1 : 0)
+#define MAX_DOUBLE (1.79769e+308)
+
+#ifdef _MSC_VER
+#pragma warning(disable:4267 4100 4244 4456)
+#endif
+
+#ifdef USE_SSE
+#include <immintrin.h>
+
+const int32_t SIMD_WIDTH = 4;
+inline int32_t FindMinimumElement(const float* const d, float* const _, const int32_t n)
+{
+    // Min within vectors
+    __m128 min_i = _mm_set1_ps(-1.0f);
+    __m128 min_v = _mm_set1_ps(std::numeric_limits<float>::max());
+    for (int32_t i = 0; i <= n - SIMD_WIDTH; i += SIMD_WIDTH) {
+        const __m128 data = _mm_load_ps(&d[i]);
+        const __m128 pred = _mm_cmplt_ps(data, min_v);
+
+        min_i = _mm_blendv_ps(min_i, _mm_set1_ps(i), pred);
+        min_v = _mm_min_ps(data, min_v);
+    }
+
+    /* Min within vector */
+    const __m128 min1 = _mm_shuffle_ps(min_v, min_v, _MM_SHUFFLE(1, 0, 3, 2));
+    const __m128 min2 = _mm_min_ps(min_v, min1);
+    const __m128 min3 = _mm_shuffle_ps(min2, min2, _MM_SHUFFLE(0, 1, 0, 1));
+    const __m128 min4 = _mm_min_ps(min2, min3);
+    float min_d = _mm_cvtss_f32(min4);
+
+    // Min index
+    const int32_t min_idx = __builtin_ctz(_mm_movemask_ps(_mm_cmpeq_ps(min_v, min4)));
+    int32_t ret = min_i[min_idx] + min_idx;
+
+    // Trailing elements
+    for (int32_t i = (n & ~(SIMD_WIDTH - 1)); i < n; ++i) {
+        if (d[i] < min_d) {
+            min_d = d[i];
+            ret = i;
+        }
+    }
+
+    *m = min_d;
+    return ret;
+}
+
+inline int32_t FindMinimumElement(const float* const d, float* const m, const int32_t begin, const int32_t end)
+{
+    // Leading elements
+    int32_t min_i = -1;
+    float min_d = std::numeric_limits<float>::max();
+    const int32_t aligned = (begin & ~(SIMD_WIDTH - 1)) + ((begin & (SIMD_WIDTH - 1)) ? SIMD_WIDTH : 0);
+    for (int32_t i = begin; i < std::min(end, aligned); ++i) {
+        if (d[i] < min_d) {
+            min_d = d[i];
+            min_i = i;
+        }
+    }
+
+    // Middle and trailing elements
+    float r_m = std::numeric_limits<float>::max();
+    const int32_t n = end - aligned;
+    const int32_t r_i = (n > 0) ? FindMinimumElement(&d[aligned], &r_m, n) : 0;
+
+    // Pick the lowest
+    if (r_m < min_d) {
+        *m = r_m;
+        return r_i + aligned;
+    }
+    else {
+        *m = min_d;
+        return min_i;
+    }
+}
+#else
+inline int32_t FindMinimumElement(const float* const d, float* const m, const int32_t begin, const int32_t end)
+{
+    int32_t idx = -1;
+    float min = (std::numeric_limits<float>::max)();
+    for (size_t i = begin; i < size_t(end); ++i) {
+        if (d[i] < min) {
+            idx = i;
+            min = d[i];
+        }
+    }
+
+    *m = min;
+    return idx;
+}
+#endif
+
+//#define OCL_SOURCE_FROM_FILE
+#ifndef OCL_SOURCE_FROM_FILE
+const char* oclProgramSource = "\
+__kernel void ComputePartialVolumes(__global short4 * voxels,                    \
+                                    const    int      numVoxels,                 \
+                                    const    float4   plane,                     \
+                                    const    float4   minBB,                     \
+                                    const    float4   scale,                     \
+                                    __local  uint4 *  localPartialVolumes,       \
+                                    __global uint4 *  partialVolumes)            \
+{                                                                                \
+    int localId = get_local_id(0);                                               \
+    int groupSize = get_local_size(0);                                           \
+    int i0 = get_global_id(0) << 2;                                              \
+    float4 voxel;                                                                \
+    uint4  v;                                                                    \
+    voxel = convert_float4(voxels[i0]);                                          \
+    v.s0 = (dot(plane, mad(scale, voxel, minBB)) >= 0.0f) * (i0     < numVoxels);\
+    voxel = convert_float4(voxels[i0 + 1]);                                      \
+    v.s1 = (dot(plane, mad(scale, voxel, minBB)) >= 0.0f) * (i0 + 1 < numVoxels);\
+    voxel = convert_float4(voxels[i0 + 2]);                                      \
+    v.s2 = (dot(plane, mad(scale, voxel, minBB)) >= 0.0f) * (i0 + 2 < numVoxels);\
+    voxel = convert_float4(voxels[i0 + 3]);                                      \
+    v.s3 = (dot(plane, mad(scale, voxel, minBB)) >= 0.0f) * (i0 + 3 < numVoxels);\
+    localPartialVolumes[localId] = v;                                            \
+    barrier(CLK_LOCAL_MEM_FENCE);                                                \
+    for (int i = groupSize >> 1; i > 0; i >>= 1)                                 \
+    {                                                                            \
+        if (localId < i)                                                         \
+        {                                                                        \
+            localPartialVolumes[localId] += localPartialVolumes[localId + i];    \
+        }                                                                        \
+        barrier(CLK_LOCAL_MEM_FENCE);                                            \
+    }                                                                            \
+    if (localId == 0)                                                            \
+    {                                                                            \
+        partialVolumes[get_group_id(0)] = localPartialVolumes[0];                \
+    }                                                                            \
+}                                                                                \
+__kernel void ComputePartialSums(__global uint4 * data,                          \
+                                 const    int     dataSize,                      \
+                                 __local  uint4 * partialSums)                   \
+{                                                                                \
+    int globalId  = get_global_id(0);                                            \
+    int localId   = get_local_id(0);                                             \
+    int groupSize = get_local_size(0);                                           \
+    int i;                                                                       \
+    if (globalId < dataSize)                                                     \
+    {                                                                            \
+        partialSums[localId] = data[globalId];                                   \
+    }                                                                            \
+    else                                                                         \
+    {                                                                            \
+        partialSums[localId] = (0, 0, 0, 0);                                     \
+    }                                                                            \
+    barrier(CLK_LOCAL_MEM_FENCE);                                                \
+    for (i = groupSize >> 1; i > 0; i >>= 1)                                     \
+    {                                                                            \
+        if (localId < i)                                                         \
+        {                                                                        \
+            partialSums[localId] += partialSums[localId + i];                    \
+        }                                                                        \
+        barrier(CLK_LOCAL_MEM_FENCE);                                            \
+    }                                                                            \
+    if (localId == 0)                                                            \
+    {                                                                            \
+        data[get_group_id(0)] = partialSums[0];                                  \
+    }                                                                            \
+}";
+#endif //OCL_SOURCE_FROM_FILE
+
+namespace VHACD {
+IVHACD* CreateVHACD(void)
+{
+    return new VHACD();
+}
+bool VHACD::OCLInit(void* const oclDevice, IUserLogger* const logger)
+{
+#ifdef CL_VERSION_1_1
+    m_oclDevice = (cl_device_id*)oclDevice;
+    cl_int error;
+    m_oclContext = clCreateContext(NULL, 1, m_oclDevice, NULL, NULL, &error);
+    if (error != CL_SUCCESS) {
+        if (logger) {
+            logger->Log("Couldn't create context\n");
+        }
+        return false;
+    }
+
+#ifdef OCL_SOURCE_FROM_FILE
+    std::string cl_files = OPENCL_CL_FILES;
+// read kernal from file
+#ifdef _WIN32
+    std::replace(cl_files.begin(), cl_files.end(), '/', '\\');
+#endif // _WIN32
+
+    FILE* program_handle = fopen(cl_files.c_str(), "rb");
+    fseek(program_handle, 0, SEEK_END);
+    size_t program_size = ftell(program_handle);
+    rewind(program_handle);
+    char* program_buffer = new char[program_size + 1];
+    program_buffer[program_size] = '\0';
+    fread(program_buffer, sizeof(char), program_size, program_handle);
+    fclose(program_handle);
+    // create program
+    m_oclProgram = clCreateProgramWithSource(m_oclContext, 1, (const char**)&program_buffer, &program_size, &error);
+    delete[] program_buffer;
+#else
+    size_t program_size = strlen(oclProgramSource);
+    m_oclProgram = clCreateProgramWithSource(m_oclContext, 1, (const char**)&oclProgramSource, &program_size, &error);
+#endif
+    if (error != CL_SUCCESS) {
+        if (logger) {
+            logger->Log("Couldn't create program\n");
+        }
+        return false;
+    }
+
+    /* Build program */
+    error = clBuildProgram(m_oclProgram, 1, m_oclDevice, "-cl-denorms-are-zero", NULL, NULL);
+    if (error != CL_SUCCESS) {
+        size_t log_size;
+        /* Find Size of log and print to std output */
+        clGetProgramBuildInfo(m_oclProgram, *m_oclDevice, CL_PROGRAM_BUILD_LOG, 0, NULL, &log_size);
+        char* program_log = new char[log_size + 2];
+        program_log[log_size] = '\n';
+        program_log[log_size + 1] = '\0';
+        clGetProgramBuildInfo(m_oclProgram, *m_oclDevice, CL_PROGRAM_BUILD_LOG, log_size + 1, program_log, NULL);
+        if (logger) {
+            logger->Log("Couldn't build program\n");
+            logger->Log(program_log);
+        }
+        delete[] program_log;
+        return false;
+    }
+
+    delete[] m_oclQueue;
+    delete[] m_oclKernelComputePartialVolumes;
+    delete[] m_oclKernelComputeSum;
+    m_oclQueue = new cl_command_queue[m_ompNumProcessors];
+    m_oclKernelComputePartialVolumes = new cl_kernel[m_ompNumProcessors];
+    m_oclKernelComputeSum = new cl_kernel[m_ompNumProcessors];
+
+    const char nameKernelComputePartialVolumes[] = "ComputePartialVolumes";
+    const char nameKernelComputeSum[] = "ComputePartialSums";
+    for (int32_t k = 0; k < m_ompNumProcessors; ++k) {
+        m_oclKernelComputePartialVolumes[k] = clCreateKernel(m_oclProgram, nameKernelComputePartialVolumes, &error);
+        if (error != CL_SUCCESS) {
+            if (logger) {
+                logger->Log("Couldn't create kernel\n");
+            }
+            return false;
+        }
+        m_oclKernelComputeSum[k] = clCreateKernel(m_oclProgram, nameKernelComputeSum, &error);
+        if (error != CL_SUCCESS) {
+            if (logger) {
+                logger->Log("Couldn't create kernel\n");
+            }
+            return false;
+        }
+    }
+
+    error = clGetKernelWorkGroupInfo(m_oclKernelComputePartialVolumes[0],
+        *m_oclDevice,
+        CL_KERNEL_WORK_GROUP_SIZE,
+        sizeof(size_t),
+        &m_oclWorkGroupSize,
+        NULL);
+    size_t workGroupSize = 0;
+    error = clGetKernelWorkGroupInfo(m_oclKernelComputeSum[0],
+        *m_oclDevice,
+        CL_KERNEL_WORK_GROUP_SIZE,
+        sizeof(size_t),
+        &workGroupSize,
+        NULL);
+    if (error != CL_SUCCESS) {
+        if (logger) {
+            logger->Log("Couldn't query work group info\n");
+        }
+        return false;
+    }
+
+    if (workGroupSize < m_oclWorkGroupSize) {
+        m_oclWorkGroupSize = workGroupSize;
+    }
+
+    for (int32_t k = 0; k < m_ompNumProcessors; ++k) {
+        m_oclQueue[k] = clCreateCommandQueue(m_oclContext, *m_oclDevice, 0 /*CL_QUEUE_PROFILING_ENABLE*/, &error);
+        if (error != CL_SUCCESS) {
+            if (logger) {
+                logger->Log("Couldn't create queue\n");
+            }
+            return false;
+        }
+    }
+    return true;
+#else //CL_VERSION_1_1
+    return false;
+#endif //CL_VERSION_1_1
+}
+bool VHACD::OCLRelease(IUserLogger* const logger)
+{
+#ifdef CL_VERSION_1_1
+    cl_int error;
+    if (m_oclKernelComputePartialVolumes) {
+        for (int32_t k = 0; k < m_ompNumProcessors; ++k) {
+            error = clReleaseKernel(m_oclKernelComputePartialVolumes[k]);
+            if (error != CL_SUCCESS) {
+                if (logger) {
+                    logger->Log("Couldn't release kernal\n");
+                }
+                return false;
+            }
+        }
+        delete[] m_oclKernelComputePartialVolumes;
+    }
+    if (m_oclKernelComputeSum) {
+        for (int32_t k = 0; k < m_ompNumProcessors; ++k) {
+            error = clReleaseKernel(m_oclKernelComputeSum[k]);
+            if (error != CL_SUCCESS) {
+                if (logger) {
+                    logger->Log("Couldn't release kernal\n");
+                }
+                return false;
+            }
+        }
+        delete[] m_oclKernelComputeSum;
+    }
+    if (m_oclQueue) {
+        for (int32_t k = 0; k < m_ompNumProcessors; ++k) {
+            error = clReleaseCommandQueue(m_oclQueue[k]);
+            if (error != CL_SUCCESS) {
+                if (logger) {
+                    logger->Log("Couldn't release queue\n");
+                }
+                return false;
+            }
+        }
+        delete[] m_oclQueue;
+    }
+    error = clReleaseProgram(m_oclProgram);
+    if (error != CL_SUCCESS) {
+        if (logger) {
+            logger->Log("Couldn't release program\n");
+        }
+        return false;
+    }
+    error = clReleaseContext(m_oclContext);
+    if (error != CL_SUCCESS) {
+        if (logger) {
+            logger->Log("Couldn't release context\n");
+        }
+        return false;
+    }
+
+    return true;
+#else //CL_VERSION_1_1
+    return false;
+#endif //CL_VERSION_1_1
+}
+void VHACD::ComputePrimitiveSet(const Parameters& params)
+{
+    if (GetCancel()) {
+        return;
+    }
+    m_timer.Tic();
+
+    m_stage = "Compute primitive set";
+    m_operation = "Convert volume to pset";
+
+    std::ostringstream msg;
+    if (params.m_logger) {
+        msg << "+ " << m_stage << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+
+    Update(0.0, 0.0, params);
+    if (params.m_mode == 0) {
+        VoxelSet* vset = new VoxelSet;
+        m_volume->Convert(*vset);
+        m_pset = vset;
+    }
+    else {
+        TetrahedronSet* tset = new TetrahedronSet;
+        m_volume->Convert(*tset);
+        m_pset = tset;
+    }
+
+    delete m_volume;
+    m_volume = 0;
+
+    if (params.m_logger) {
+        msg.str("");
+        msg << "\t # primitives               " << m_pset->GetNPrimitives() << std::endl;
+        msg << "\t # inside surface           " << m_pset->GetNPrimitivesInsideSurf() << std::endl;
+        msg << "\t # on surface               " << m_pset->GetNPrimitivesOnSurf() << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+
+    m_overallProgress = 15.0;
+    Update(100.0, 100.0, params);
+    m_timer.Toc();
+    if (params.m_logger) {
+        msg.str("");
+        msg << "\t time " << m_timer.GetElapsedTime() / 1000.0 << "s" << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+}
+bool VHACD::Compute(const double* const points, const uint32_t nPoints,
+    const uint32_t* const triangles,const uint32_t nTriangles, const Parameters& params)
+{
+    return ComputeACD(points, nPoints, triangles, nTriangles, params);
+}
+bool VHACD::Compute(const float* const points,const uint32_t nPoints,
+    const uint32_t* const triangles,const uint32_t nTriangles, const Parameters& params)
+{
+    return ComputeACD(points, nPoints, triangles, nTriangles, params);
+}
+double ComputePreferredCuttingDirection(const PrimitiveSet* const tset, Vec3<double>& dir)
+{
+    double ex = tset->GetEigenValue(AXIS_X);
+    double ey = tset->GetEigenValue(AXIS_Y);
+    double ez = tset->GetEigenValue(AXIS_Z);
+    double vx = (ey - ez) * (ey - ez);
+    double vy = (ex - ez) * (ex - ez);
+    double vz = (ex - ey) * (ex - ey);
+    if (vx < vy && vx < vz) {
+        double e = ey * ey + ez * ez;
+        dir[0] = 1.0;
+        dir[1] = 0.0;
+        dir[2] = 0.0;
+        return (e == 0.0) ? 0.0 : 1.0 - vx / e;
+    }
+    else if (vy < vx && vy < vz) {
+        double e = ex * ex + ez * ez;
+        dir[0] = 0.0;
+        dir[1] = 1.0;
+        dir[2] = 0.0;
+        return (e == 0.0) ? 0.0 : 1.0 - vy / e;
+    }
+    else {
+        double e = ex * ex + ey * ey;
+        dir[0] = 0.0;
+        dir[1] = 0.0;
+        dir[2] = 1.0;
+        return (e == 0.0) ? 0.0 : 1.0 - vz / e;
+    }
+}
+void ComputeAxesAlignedClippingPlanes(const VoxelSet& vset, const short downsampling, SArray<Plane>& planes)
+{
+    const Vec3<short> minV = vset.GetMinBBVoxels();
+    const Vec3<short> maxV = vset.GetMaxBBVoxels();
+    Vec3<double> pt;
+    Plane plane;
+    const short i0 = minV[0];
+    const short i1 = maxV[0];
+    plane.m_a = 1.0;
+    plane.m_b = 0.0;
+    plane.m_c = 0.0;
+    plane.m_axis = AXIS_X;
+    for (short i = i0; i <= i1; i += downsampling) {
+        pt = vset.GetPoint(Vec3<double>(i + 0.5, 0.0, 0.0));
+        plane.m_d = -pt[0];
+        plane.m_index = i;
+        planes.PushBack(plane);
+    }
+    const short j0 = minV[1];
+    const short j1 = maxV[1];
+    plane.m_a = 0.0;
+    plane.m_b = 1.0;
+    plane.m_c = 0.0;
+    plane.m_axis = AXIS_Y;
+    for (short j = j0; j <= j1; j += downsampling) {
+        pt = vset.GetPoint(Vec3<double>(0.0, j + 0.5, 0.0));
+        plane.m_d = -pt[1];
+        plane.m_index = j;
+        planes.PushBack(plane);
+    }
+    const short k0 = minV[2];
+    const short k1 = maxV[2];
+    plane.m_a = 0.0;
+    plane.m_b = 0.0;
+    plane.m_c = 1.0;
+    plane.m_axis = AXIS_Z;
+    for (short k = k0; k <= k1; k += downsampling) {
+        pt = vset.GetPoint(Vec3<double>(0.0, 0.0, k + 0.5));
+        plane.m_d = -pt[2];
+        plane.m_index = k;
+        planes.PushBack(plane);
+    }
+}
+void ComputeAxesAlignedClippingPlanes(const TetrahedronSet& tset, const short downsampling, SArray<Plane>& planes)
+{
+    const Vec3<double> minV = tset.GetMinBB();
+    const Vec3<double> maxV = tset.GetMaxBB();
+    const double scale = tset.GetSacle();
+    const short i0 = 0;
+    const short j0 = 0;
+    const short k0 = 0;
+    const short i1 = static_cast<short>((maxV[0] - minV[0]) / scale + 0.5);
+    const short j1 = static_cast<short>((maxV[1] - minV[1]) / scale + 0.5);
+    const short k1 = static_cast<short>((maxV[2] - minV[2]) / scale + 0.5);
+
+    Plane plane;
+    plane.m_a = 1.0;
+    plane.m_b = 0.0;
+    plane.m_c = 0.0;
+    plane.m_axis = AXIS_X;
+    for (short i = i0; i <= i1; i += downsampling) {
+        double x = minV[0] + scale * i;
+        plane.m_d = -x;
+        plane.m_index = i;
+        planes.PushBack(plane);
+    }
+    plane.m_a = 0.0;
+    plane.m_b = 1.0;
+    plane.m_c = 0.0;
+    plane.m_axis = AXIS_Y;
+    for (short j = j0; j <= j1; j += downsampling) {
+        double y = minV[1] + scale * j;
+        plane.m_d = -y;
+        plane.m_index = j;
+        planes.PushBack(plane);
+    }
+    plane.m_a = 0.0;
+    plane.m_b = 0.0;
+    plane.m_c = 1.0;
+    plane.m_axis = AXIS_Z;
+    for (short k = k0; k <= k1; k += downsampling) {
+        double z = minV[2] + scale * k;
+        plane.m_d = -z;
+        plane.m_index = k;
+        planes.PushBack(plane);
+    }
+}
+void RefineAxesAlignedClippingPlanes(const VoxelSet& vset, const Plane& bestPlane, const short downsampling,
+    SArray<Plane>& planes)
+{
+    const Vec3<short> minV = vset.GetMinBBVoxels();
+    const Vec3<short> maxV = vset.GetMaxBBVoxels();
+    Vec3<double> pt;
+    Plane plane;
+
+    if (bestPlane.m_axis == AXIS_X) {
+        const short i0 = MAX(minV[0], bestPlane.m_index - downsampling);
+        const short i1 = MIN(maxV[0], bestPlane.m_index + downsampling);
+        plane.m_a = 1.0;
+        plane.m_b = 0.0;
+        plane.m_c = 0.0;
+        plane.m_axis = AXIS_X;
+        for (short i = i0; i <= i1; ++i) {
+            pt = vset.GetPoint(Vec3<double>(i + 0.5, 0.0, 0.0));
+            plane.m_d = -pt[0];
+            plane.m_index = i;
+            planes.PushBack(plane);
+        }
+    }
+    else if (bestPlane.m_axis == AXIS_Y) {
+        const short j0 = MAX(minV[1], bestPlane.m_index - downsampling);
+        const short j1 = MIN(maxV[1], bestPlane.m_index + downsampling);
+        plane.m_a = 0.0;
+        plane.m_b = 1.0;
+        plane.m_c = 0.0;
+        plane.m_axis = AXIS_Y;
+        for (short j = j0; j <= j1; ++j) {
+            pt = vset.GetPoint(Vec3<double>(0.0, j + 0.5, 0.0));
+            plane.m_d = -pt[1];
+            plane.m_index = j;
+            planes.PushBack(plane);
+        }
+    }
+    else {
+        const short k0 = MAX(minV[2], bestPlane.m_index - downsampling);
+        const short k1 = MIN(maxV[2], bestPlane.m_index + downsampling);
+        plane.m_a = 0.0;
+        plane.m_b = 0.0;
+        plane.m_c = 1.0;
+        plane.m_axis = AXIS_Z;
+        for (short k = k0; k <= k1; ++k) {
+            pt = vset.GetPoint(Vec3<double>(0.0, 0.0, k + 0.5));
+            plane.m_d = -pt[2];
+            plane.m_index = k;
+            planes.PushBack(plane);
+        }
+    }
+}
+void RefineAxesAlignedClippingPlanes(const TetrahedronSet& tset, const Plane& bestPlane, const short downsampling,
+    SArray<Plane>& planes)
+{
+    const Vec3<double> minV = tset.GetMinBB();
+    const Vec3<double> maxV = tset.GetMaxBB();
+    const double scale = tset.GetSacle();
+    Plane plane;
+
+    if (bestPlane.m_axis == AXIS_X) {
+        const short i0 = MAX(0, bestPlane.m_index - downsampling);
+        const short i1 = static_cast<short>(MIN((maxV[0] - minV[0]) / scale + 0.5, bestPlane.m_index + downsampling));
+        plane.m_a = 1.0;
+        plane.m_b = 0.0;
+        plane.m_c = 0.0;
+        plane.m_axis = AXIS_X;
+        for (short i = i0; i <= i1; ++i) {
+            double x = minV[0] + scale * i;
+            plane.m_d = -x;
+            plane.m_index = i;
+            planes.PushBack(plane);
+        }
+    }
+    else if (bestPlane.m_axis == AXIS_Y) {
+        const short j0 = MAX(0, bestPlane.m_index - downsampling);
+        const short j1 = static_cast<short>(MIN((maxV[1] - minV[1]) / scale + 0.5, bestPlane.m_index + downsampling));
+        plane.m_a = 0.0;
+        plane.m_b = 1.0;
+        plane.m_c = 0.0;
+        plane.m_axis = AXIS_Y;
+        for (short j = j0; j <= j1; ++j) {
+            double y = minV[1] + scale * j;
+            plane.m_d = -y;
+            plane.m_index = j;
+            planes.PushBack(plane);
+        }
+    }
+    else {
+        const short k0 = MAX(0, bestPlane.m_index - downsampling);
+        const short k1 = static_cast<short>(MIN((maxV[2] - minV[2]) / scale + 0.5, bestPlane.m_index + downsampling));
+        plane.m_a = 0.0;
+        plane.m_b = 0.0;
+        plane.m_c = 1.0;
+        plane.m_axis = AXIS_Z;
+        for (short k = k0; k <= k1; ++k) {
+            double z = minV[2] + scale * k;
+            plane.m_d = -z;
+            plane.m_index = k;
+            planes.PushBack(plane);
+        }
+    }
+}
+inline double ComputeLocalConcavity(const double volume, const double volumeCH)
+{
+    return fabs(volumeCH - volume) / volumeCH;
+}
+inline double ComputeConcavity(const double volume, const double volumeCH, const double volume0)
+{
+    return fabs(volumeCH - volume) / volume0;
+}
+
+//#define DEBUG_TEMP
+void VHACD::ComputeBestClippingPlane(const PrimitiveSet* inputPSet, const double volume, const SArray<Plane>& planes,
+    const Vec3<double>& preferredCuttingDirection, const double w, const double alpha, const double beta,
+    const int32_t convexhullDownsampling, const double progress0, const double progress1, Plane& bestPlane,
+    double& minConcavity, const Parameters& params)
+{
+    if (GetCancel()) {
+        return;
+    }
+    char msg[256];
+    size_t nPrimitives = inputPSet->GetNPrimitives();
+    bool oclAcceleration = (nPrimitives > OCL_MIN_NUM_PRIMITIVES && params.m_oclAcceleration && params.m_mode == 0) ? true : false;
+    int32_t iBest = -1;
+    int32_t nPlanes = static_cast<int32_t>(planes.Size());
+    bool cancel = false;
+    int32_t done = 0;
+    double minTotal = MAX_DOUBLE;
+    double minBalance = MAX_DOUBLE;
+    double minSymmetry = MAX_DOUBLE;
+    minConcavity = MAX_DOUBLE;
+
+    SArray<Vec3<double> >* chPts = new SArray<Vec3<double> >[2 * m_ompNumProcessors];
+    Mesh* chs = new Mesh[2 * m_ompNumProcessors];
+    PrimitiveSet* onSurfacePSet = inputPSet->Create();
+    inputPSet->SelectOnSurface(onSurfacePSet);
+
+    PrimitiveSet** psets = 0;
+    if (!params.m_convexhullApproximation) {
+        psets = new PrimitiveSet*[2 * m_ompNumProcessors];
+        for (int32_t i = 0; i < 2 * m_ompNumProcessors; ++i) {
+            psets[i] = inputPSet->Create();
+        }
+    }
+
+#ifdef CL_VERSION_1_1
+    // allocate OpenCL data structures
+    cl_mem voxels;
+    cl_mem* partialVolumes = 0;
+    size_t globalSize = 0;
+    size_t nWorkGroups = 0;
+    double unitVolume = 0.0;
+    if (oclAcceleration) {
+        VoxelSet* vset = (VoxelSet*)inputPSet;
+        const Vec3<double> minBB = vset->GetMinBB();
+        const float fMinBB[4] = { (float)minBB[0], (float)minBB[1], (float)minBB[2], 1.0f };
+        const float fSclae[4] = { (float)vset->GetScale(), (float)vset->GetScale(), (float)vset->GetScale(), 0.0f };
+        const int32_t nVoxels = (int32_t)nPrimitives;
+        unitVolume = vset->GetUnitVolume();
+        nWorkGroups = (nPrimitives + 4 * m_oclWorkGroupSize - 1) / (4 * m_oclWorkGroupSize);
+        globalSize = nWorkGroups * m_oclWorkGroupSize;
+        cl_int error;
+        voxels = clCreateBuffer(m_oclContext,
+            CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
+            sizeof(Voxel) * nPrimitives,
+            vset->GetVoxels(),
+            &error);
+        if (error != CL_SUCCESS) {
+            if (params.m_logger) {
+                params.m_logger->Log("Couldn't create buffer\n");
+            }
+            SetCancel(true);
+        }
+
+        partialVolumes = new cl_mem[m_ompNumProcessors];
+        for (int32_t i = 0; i < m_ompNumProcessors; ++i) {
+            partialVolumes[i] = clCreateBuffer(m_oclContext,
+                CL_MEM_WRITE_ONLY,
+                sizeof(uint32_t) * 4 * nWorkGroups,
+                NULL,
+                &error);
+            if (error != CL_SUCCESS) {
+                if (params.m_logger) {
+                    params.m_logger->Log("Couldn't create buffer\n");
+                }
+                SetCancel(true);
+                break;
+            }
+            error = clSetKernelArg(m_oclKernelComputePartialVolumes[i], 0, sizeof(cl_mem), &voxels);
+            error |= clSetKernelArg(m_oclKernelComputePartialVolumes[i], 1, sizeof(uint32_t), &nVoxels);
+            error |= clSetKernelArg(m_oclKernelComputePartialVolumes[i], 3, sizeof(float) * 4, fMinBB);
+            error |= clSetKernelArg(m_oclKernelComputePartialVolumes[i], 4, sizeof(float) * 4, &fSclae);
+            error |= clSetKernelArg(m_oclKernelComputePartialVolumes[i], 5, sizeof(uint32_t) * 4 * m_oclWorkGroupSize, NULL);
+            error |= clSetKernelArg(m_oclKernelComputePartialVolumes[i], 6, sizeof(cl_mem), &(partialVolumes[i]));
+            error |= clSetKernelArg(m_oclKernelComputeSum[i], 0, sizeof(cl_mem), &(partialVolumes[i]));
+            error |= clSetKernelArg(m_oclKernelComputeSum[i], 2, sizeof(uint32_t) * 4 * m_oclWorkGroupSize, NULL);
+            if (error != CL_SUCCESS) {
+                if (params.m_logger) {
+                    params.m_logger->Log("Couldn't kernel arguments \n");
+                }
+                SetCancel(true);
+            }
+        }
+    }
+#else // CL_VERSION_1_1
+    oclAcceleration = false;
+#endif // CL_VERSION_1_1
+
+#ifdef DEBUG_TEMP
+    Timer timerComputeCost;
+    timerComputeCost.Tic();
+#endif // DEBUG_TEMP
+
+#if USE_THREAD == 1 && _OPENMP
+#pragma omp parallel for
+#endif
+    for (int32_t x = 0; x < nPlanes; ++x) {
+        int32_t threadID = 0;
+#if USE_THREAD == 1 && _OPENMP
+        threadID = omp_get_thread_num();
+#pragma omp flush(cancel)
+#endif
+        if (!cancel) {
+            //Update progress
+            if (GetCancel()) {
+                cancel = true;
+#if USE_THREAD == 1 && _OPENMP
+#pragma omp flush(cancel)
+#endif
+            }
+            Plane plane = planes[x];
+
+            if (oclAcceleration) {
+#ifdef CL_VERSION_1_1
+                const float fPlane[4] = { (float)plane.m_a, (float)plane.m_b, (float)plane.m_c, (float)plane.m_d };
+                cl_int error = clSetKernelArg(m_oclKernelComputePartialVolumes[threadID], 2, sizeof(float) * 4, fPlane);
+                if (error != CL_SUCCESS) {
+                    if (params.m_logger) {
+                        params.m_logger->Log("Couldn't kernel atguments \n");
+                    }
+                    SetCancel(true);
+                }
+
+                error = clEnqueueNDRangeKernel(m_oclQueue[threadID], m_oclKernelComputePartialVolumes[threadID],
+                    1, NULL, &globalSize, &m_oclWorkGroupSize, 0, NULL, NULL);
+                if (error != CL_SUCCESS) {
+                    if (params.m_logger) {
+                        params.m_logger->Log("Couldn't run kernel \n");
+                    }
+                    SetCancel(true);
+                }
+                int32_t nValues = (int32_t)nWorkGroups;
+                while (nValues > 1) {
+                    error = clSetKernelArg(m_oclKernelComputeSum[threadID], 1, sizeof(int32_t), &nValues);
+                    if (error != CL_SUCCESS) {
+                        if (params.m_logger) {
+                            params.m_logger->Log("Couldn't kernel atguments \n");
+                        }
+                        SetCancel(true);
+                    }
+                    size_t nWorkGroups = (nValues + m_oclWorkGroupSize - 1) / m_oclWorkGroupSize;
+                    size_t globalSize = nWorkGroups * m_oclWorkGroupSize;
+                    error = clEnqueueNDRangeKernel(m_oclQueue[threadID], m_oclKernelComputeSum[threadID],
+                        1, NULL, &globalSize, &m_oclWorkGroupSize, 0, NULL, NULL);
+                    if (error != CL_SUCCESS) {
+                        if (params.m_logger) {
+                            params.m_logger->Log("Couldn't run kernel \n");
+                        }
+                        SetCancel(true);
+                    }
+                    nValues = (int32_t)nWorkGroups;
+                }
+#endif // CL_VERSION_1_1
+            }
+
+            Mesh& leftCH = chs[threadID];
+            Mesh& rightCH = chs[threadID + m_ompNumProcessors];
+            rightCH.ResizePoints(0);
+            leftCH.ResizePoints(0);
+            rightCH.ResizeTriangles(0);
+            leftCH.ResizeTriangles(0);
+
+// compute convex-hulls
+#ifdef TEST_APPROX_CH
+            double volumeLeftCH1;
+            double volumeRightCH1;
+#endif //TEST_APPROX_CH
+            if (params.m_convexhullApproximation) {
+                SArray<Vec3<double> >& leftCHPts = chPts[threadID];
+                SArray<Vec3<double> >& rightCHPts = chPts[threadID + m_ompNumProcessors];
+                rightCHPts.Resize(0);
+                leftCHPts.Resize(0);
+                onSurfacePSet->Intersect(plane, &rightCHPts, &leftCHPts, convexhullDownsampling * 32);
+                inputPSet->GetConvexHull().Clip(plane, rightCHPts, leftCHPts);
+                rightCH.ComputeConvexHull((double*)rightCHPts.Data(), rightCHPts.Size());
+                leftCH.ComputeConvexHull((double*)leftCHPts.Data(), leftCHPts.Size());
+#ifdef TEST_APPROX_CH
+                Mesh leftCH1;
+                Mesh rightCH1;
+                VoxelSet right;
+                VoxelSet left;
+                onSurfacePSet->Clip(plane, &right, &left);
+                right.ComputeConvexHull(rightCH1, convexhullDownsampling);
+                left.ComputeConvexHull(leftCH1, convexhullDownsampling);
+
+                volumeLeftCH1 = leftCH1.ComputeVolume();
+                volumeRightCH1 = rightCH1.ComputeVolume();
+#endif //TEST_APPROX_CH
+            }
+            else {
+                PrimitiveSet* const right = psets[threadID];
+                PrimitiveSet* const left = psets[threadID + m_ompNumProcessors];
+                onSurfacePSet->Clip(plane, right, left);
+                right->ComputeConvexHull(rightCH, convexhullDownsampling);
+                left->ComputeConvexHull(leftCH, convexhullDownsampling);
+            }
+            double volumeLeftCH = leftCH.ComputeVolume();
+            double volumeRightCH = rightCH.ComputeVolume();
+
+            // compute clipped volumes
+            double volumeLeft = 0.0;
+            double volumeRight = 0.0;
+            if (oclAcceleration) {
+#ifdef CL_VERSION_1_1
+                uint32_t volumes[4];
+                cl_int error = clEnqueueReadBuffer(m_oclQueue[threadID], partialVolumes[threadID], CL_TRUE,
+                    0, sizeof(uint32_t) * 4, volumes, 0, NULL, NULL);
+                size_t nPrimitivesRight = volumes[0] + volumes[1] + volumes[2] + volumes[3];
+                size_t nPrimitivesLeft = nPrimitives - nPrimitivesRight;
+                volumeRight = nPrimitivesRight * unitVolume;
+                volumeLeft = nPrimitivesLeft * unitVolume;
+                if (error != CL_SUCCESS) {
+                    if (params.m_logger) {
+                        params.m_logger->Log("Couldn't read buffer \n");
+                    }
+                    SetCancel(true);
+                }
+#endif // CL_VERSION_1_1
+            }
+            else {
+                inputPSet->ComputeClippedVolumes(plane, volumeRight, volumeLeft);
+            }
+            double concavityLeft = ComputeConcavity(volumeLeft, volumeLeftCH, m_volumeCH0);
+            double concavityRight = ComputeConcavity(volumeRight, volumeRightCH, m_volumeCH0);
+            double concavity = (concavityLeft + concavityRight);
+
+            // compute cost
+            double balance = alpha * fabs(volumeLeft - volumeRight) / m_volumeCH0;
+            double d = w * (preferredCuttingDirection[0] * plane.m_a + preferredCuttingDirection[1] * plane.m_b + preferredCuttingDirection[2] * plane.m_c);
+            double symmetry = beta * d;
+            double total = concavity + balance + symmetry;
+
+#if USE_THREAD == 1 && _OPENMP
+#pragma omp critical
+#endif
+            {
+                if (total < minTotal || (total == minTotal && x < iBest)) {
+                    minConcavity = concavity;
+                    minBalance = balance;
+                    minSymmetry = symmetry;
+                    bestPlane = plane;
+                    minTotal = total;
+                    iBest = x;
+                }
+                ++done;
+                if (!(done & 127)) // reduce update frequency
+                {
+                    double progress = done * (progress1 - progress0) / nPlanes + progress0;
+                    Update(m_stageProgress, progress, params);
+                }
+            }
+        }
+    }
+
+#ifdef DEBUG_TEMP
+    timerComputeCost.Toc();
+    printf_s("Cost[%i] = %f\n", nPlanes, timerComputeCost.GetElapsedTime());
+#endif // DEBUG_TEMP
+
+#ifdef CL_VERSION_1_1
+    if (oclAcceleration) {
+        clReleaseMemObject(voxels);
+        for (int32_t i = 0; i < m_ompNumProcessors; ++i) {
+            clReleaseMemObject(partialVolumes[i]);
+        }
+        delete[] partialVolumes;
+    }
+#endif // CL_VERSION_1_1
+
+    if (psets) {
+        for (int32_t i = 0; i < 2 * m_ompNumProcessors; ++i) {
+            delete psets[i];
+        }
+        delete[] psets;
+    }
+    delete onSurfacePSet;
+    delete[] chPts;
+    delete[] chs;
+    if (params.m_logger) {
+        sprintf(msg, "\n\t\t\t Best  %04i T=%2.6f C=%2.6f B=%2.6f S=%2.6f (%1.1f, %1.1f, %1.1f, %3.3f)\n\n", iBest, minTotal, minConcavity, minBalance, minSymmetry, bestPlane.m_a, bestPlane.m_b, bestPlane.m_c, bestPlane.m_d);
+        params.m_logger->Log(msg);
+    }
+}
+void VHACD::ComputeACD(const Parameters& params)
+{
+    if (GetCancel()) {
+        return;
+    }
+    m_timer.Tic();
+
+    m_stage = "Approximate Convex Decomposition";
+    m_stageProgress = 0.0;
+    std::ostringstream msg;
+    if (params.m_logger) {
+        msg << "+ " << m_stage << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+
+    SArray<PrimitiveSet*> parts;
+    SArray<PrimitiveSet*> inputParts;
+    SArray<PrimitiveSet*> temp;
+    inputParts.PushBack(m_pset);
+    m_pset = 0;
+    SArray<Plane> planes;
+    SArray<Plane> planesRef;
+    uint32_t sub = 0;
+    bool firstIteration = true;
+    m_volumeCH0 = 1.0;
+
+	// Compute the decomposition depth based on the number of convex hulls being requested..
+	uint32_t hullCount = 2;
+	uint32_t depth = 1;
+	while (params.m_maxConvexHulls > hullCount)
+	{
+		depth++;
+		hullCount *= 2;
+	}
+	// We must always increment the decomposition depth one higher than the maximum number of hulls requested.
+	// The reason for this is as follows.
+	// Say, for example, the user requests 32 convex hulls exactly.  This would be a decomposition depth of 5.
+	// However, when we do that, we do *not* necessarily get 32 hulls as a result.  This is because, during
+	// the recursive descent of the binary tree, one or more of the leaf nodes may have no concavity and
+	// will not be split.  So, in this way, even with a decomposition depth of 5, you can produce fewer than
+	// 32 hulls.  So, in this case, we would set the decomposition depth to 6 (producing up to as high as 64 convex hulls).
+	// Then, the merge step which combines over-described hulls down to the user requested amount, we will end up
+	// getting exactly 32 convex hulls as a result.
+	// We could just allow the artist to directly control the decomposition depth directly, but this would be a bit
+	// too complex and the preference is simply to let them specify how many hulls they want and derive the solution
+	// from that.
+	depth++;
+
+
+    while (sub++ < depth && inputParts.Size() > 0 && !m_cancel) {
+        msg.str("");
+        msg << "Subdivision level " << sub;
+        m_operation = msg.str();
+
+        if (params.m_logger) {
+            msg.str("");
+            msg << "\t Subdivision level " << sub << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+
+        double maxConcavity = 0.0;
+        const size_t nInputParts = inputParts.Size();
+        Update(m_stageProgress, 0.0, params);
+        for (size_t p = 0; p < nInputParts && !m_cancel; ++p) {
+            const double progress0 = p * 100.0 / nInputParts;
+            const double progress1 = (p + 0.75) * 100.0 / nInputParts;
+            const double progress2 = (p + 1.00) * 100.0 / nInputParts;
+
+            Update(m_stageProgress, progress0, params);
+
+            PrimitiveSet* pset = inputParts[p];
+            inputParts[p] = 0;
+            double volume = pset->ComputeVolume();
+            pset->ComputeBB();
+            pset->ComputePrincipalAxes();
+            if (params.m_pca) {
+                pset->AlignToPrincipalAxes();
+            }
+
+            pset->ComputeConvexHull(pset->GetConvexHull());
+            double volumeCH = fabs(pset->GetConvexHull().ComputeVolume());
+            if (firstIteration) {
+                m_volumeCH0 = volumeCH;
+            }
+
+            double concavity = ComputeConcavity(volume, volumeCH, m_volumeCH0);
+            double error = 1.01 * pset->ComputeMaxVolumeError() / m_volumeCH0;
+
+            if (firstIteration) {
+                firstIteration = false;
+            }
+
+            if (params.m_logger) {
+                msg.str("");
+                msg << "\t -> Part[" << p
+                    << "] C  = " << concavity
+                    << ", E  = " << error
+                    << ", VS = " << pset->GetNPrimitivesOnSurf()
+                    << ", VI = " << pset->GetNPrimitivesInsideSurf()
+                    << std::endl;
+                params.m_logger->Log(msg.str().c_str());
+            }
+
+            if (concavity > params.m_concavity && concavity > error) {
+                Vec3<double> preferredCuttingDirection;
+                double w = ComputePreferredCuttingDirection(pset, preferredCuttingDirection);
+                planes.Resize(0);
+                if (params.m_mode == 0) {
+                    VoxelSet* vset = (VoxelSet*)pset;
+                    ComputeAxesAlignedClippingPlanes(*vset, params.m_planeDownsampling, planes);
+                }
+                else {
+                    TetrahedronSet* tset = (TetrahedronSet*)pset;
+                    ComputeAxesAlignedClippingPlanes(*tset, params.m_planeDownsampling, planes);
+                }
+
+                if (params.m_logger) {
+                    msg.str("");
+                    msg << "\t\t [Regular sampling] Number of clipping planes " << planes.Size() << std::endl;
+                    params.m_logger->Log(msg.str().c_str());
+                }
+
+                Plane bestPlane;
+                double minConcavity = MAX_DOUBLE;
+                ComputeBestClippingPlane(pset,
+                    volume,
+                    planes,
+                    preferredCuttingDirection,
+                    w,
+                    concavity * params.m_alpha,
+                    concavity * params.m_beta,
+                    params.m_convexhullDownsampling,
+                    progress0,
+                    progress1,
+                    bestPlane,
+                    minConcavity,
+                    params);
+                if (!m_cancel && (params.m_planeDownsampling > 1 || params.m_convexhullDownsampling > 1)) {
+                    planesRef.Resize(0);
+
+                    if (params.m_mode == 0) {
+                        VoxelSet* vset = (VoxelSet*)pset;
+                        RefineAxesAlignedClippingPlanes(*vset, bestPlane, params.m_planeDownsampling, planesRef);
+                    }
+                    else {
+                        TetrahedronSet* tset = (TetrahedronSet*)pset;
+                        RefineAxesAlignedClippingPlanes(*tset, bestPlane, params.m_planeDownsampling, planesRef);
+                    }
+
+                    if (params.m_logger) {
+                        msg.str("");
+                        msg << "\t\t [Refining] Number of clipping planes " << planesRef.Size() << std::endl;
+                        params.m_logger->Log(msg.str().c_str());
+                    }
+                    ComputeBestClippingPlane(pset,
+                        volume,
+                        planesRef,
+                        preferredCuttingDirection,
+                        w,
+                        concavity * params.m_alpha,
+                        concavity * params.m_beta,
+                        1, // convexhullDownsampling = 1
+                        progress1,
+                        progress2,
+                        bestPlane,
+                        minConcavity,
+                        params);
+                }
+                if (GetCancel()) {
+                    delete pset; // clean up
+                    break;
+                }
+                else {
+                    if (maxConcavity < minConcavity) {
+                        maxConcavity = minConcavity;
+                    }
+                    PrimitiveSet* bestLeft = pset->Create();
+                    PrimitiveSet* bestRight = pset->Create();
+                    temp.PushBack(bestLeft);
+                    temp.PushBack(bestRight);
+                    pset->Clip(bestPlane, bestRight, bestLeft);
+                    if (params.m_pca) {
+                        bestRight->RevertAlignToPrincipalAxes();
+                        bestLeft->RevertAlignToPrincipalAxes();
+                    }
+                    delete pset;
+                }
+            }
+            else {
+                if (params.m_pca) {
+                    pset->RevertAlignToPrincipalAxes();
+                }
+                parts.PushBack(pset);
+            }
+        }
+
+        Update(95.0 * (1.0 - maxConcavity) / (1.0 - params.m_concavity), 100.0, params);
+        if (GetCancel()) {
+            const size_t nTempParts = temp.Size();
+            for (size_t p = 0; p < nTempParts; ++p) {
+                delete temp[p];
+            }
+            temp.Resize(0);
+        }
+        else {
+            inputParts = temp;
+            temp.Resize(0);
+        }
+    }
+    const size_t nInputParts = inputParts.Size();
+    for (size_t p = 0; p < nInputParts; ++p) {
+        parts.PushBack(inputParts[p]);
+    }
+
+    if (GetCancel()) {
+        const size_t nParts = parts.Size();
+        for (size_t p = 0; p < nParts; ++p) {
+            delete parts[p];
+        }
+        return;
+    }
+
+    m_overallProgress = 90.0;
+    Update(m_stageProgress, 100.0, params);
+
+    msg.str("");
+    msg << "Generate convex-hulls";
+    m_operation = msg.str();
+    size_t nConvexHulls = parts.Size();
+    if (params.m_logger) {
+        msg.str("");
+        msg << "+ Generate " << nConvexHulls << " convex-hulls " << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+
+    Update(m_stageProgress, 0.0, params);
+    m_convexHulls.Resize(0);
+    for (size_t p = 0; p < nConvexHulls && !m_cancel; ++p) {
+        Update(m_stageProgress, p * 100.0 / nConvexHulls, params);
+        m_convexHulls.PushBack(new Mesh);
+        parts[p]->ComputeConvexHull(*m_convexHulls[p]);
+        size_t nv = m_convexHulls[p]->GetNPoints();
+        double x, y, z;
+        for (size_t i = 0; i < nv; ++i) {
+            Vec3<double>& pt = m_convexHulls[p]->GetPoint(i);
+            x = pt[0];
+            y = pt[1];
+            z = pt[2];
+            pt[0] = m_rot[0][0] * x + m_rot[0][1] * y + m_rot[0][2] * z + m_barycenter[0];
+            pt[1] = m_rot[1][0] * x + m_rot[1][1] * y + m_rot[1][2] * z + m_barycenter[1];
+            pt[2] = m_rot[2][0] * x + m_rot[2][1] * y + m_rot[2][2] * z + m_barycenter[2];
+        }
+    }
+
+    const size_t nParts = parts.Size();
+    for (size_t p = 0; p < nParts; ++p) {
+        delete parts[p];
+        parts[p] = 0;
+    }
+    parts.Resize(0);
+
+    if (GetCancel()) {
+        const size_t nConvexHulls = m_convexHulls.Size();
+        for (size_t p = 0; p < nConvexHulls; ++p) {
+            delete m_convexHulls[p];
+        }
+        m_convexHulls.Clear();
+        return;
+    }
+
+    m_overallProgress = 95.0;
+    Update(100.0, 100.0, params);
+    m_timer.Toc();
+    if (params.m_logger) {
+        msg.str("");
+        msg << "\t time " << m_timer.GetElapsedTime() / 1000.0 << "s" << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+}
+void AddPoints(const Mesh* const mesh, SArray<Vec3<double> >& pts)
+{
+    const int32_t n = (int32_t)mesh->GetNPoints();
+    for (int32_t i = 0; i < n; ++i) {
+        pts.PushBack(mesh->GetPoint(i));
+    }
+}
+void ComputeConvexHull(const Mesh* const ch1, const Mesh* const ch2, SArray<Vec3<double> >& pts, Mesh* const combinedCH)
+{
+    pts.Resize(0);
+    AddPoints(ch1, pts);
+    AddPoints(ch2, pts);
+
+    btConvexHullComputer ch;
+    ch.compute((double*)pts.Data(), 3 * sizeof(double), (int32_t)pts.Size(), -1.0, -1.0);
+    combinedCH->ResizePoints(0);
+    combinedCH->ResizeTriangles(0);
+    for (int32_t v = 0; v < ch.vertices.size(); v++) {
+        combinedCH->AddPoint(Vec3<double>(ch.vertices[v].getX(), ch.vertices[v].getY(), ch.vertices[v].getZ()));
+    }
+    const int32_t nt = ch.faces.size();
+    for (int32_t t = 0; t < nt; ++t) {
+        const btConvexHullComputer::Edge* sourceEdge = &(ch.edges[ch.faces[t]]);
+        int32_t a = sourceEdge->getSourceVertex();
+        int32_t b = sourceEdge->getTargetVertex();
+        const btConvexHullComputer::Edge* edge = sourceEdge->getNextEdgeOfFace();
+        int32_t c = edge->getTargetVertex();
+        while (c != a) {
+            combinedCH->AddTriangle(Vec3<int32_t>(a, b, c));
+            edge = edge->getNextEdgeOfFace();
+            b = c;
+            c = edge->getTargetVertex();
+        }
+    }
+}
+void VHACD::MergeConvexHulls(const Parameters& params)
+{
+    if (GetCancel()) {
+        return;
+    }
+    m_timer.Tic();
+
+    m_stage = "Merge Convex Hulls";
+
+    std::ostringstream msg;
+    if (params.m_logger) {
+        msg << "+ " << m_stage << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+
+	// Get the current number of convex hulls
+    size_t nConvexHulls = m_convexHulls.Size();
+	// Iteration counter
+    int32_t iteration = 0;
+	// While we have more than at least one convex hull and the user has not asked us to cancel the operation
+    if (nConvexHulls > 1 && !m_cancel) 
+	{
+		// Get the gamma error threshold for when to exit
+        SArray<Vec3<double> > pts;
+        Mesh combinedCH;
+
+        // Populate the cost matrix
+        size_t idx = 0;
+        SArray<float> costMatrix;
+        costMatrix.Resize(((nConvexHulls * nConvexHulls) - nConvexHulls) >> 1);
+        for (size_t p1 = 1; p1 < nConvexHulls; ++p1) 
+		{
+            const float volume1 = m_convexHulls[p1]->ComputeVolume();
+            for (size_t p2 = 0; p2 < p1; ++p2) 
+			{
+                ComputeConvexHull(m_convexHulls[p1], m_convexHulls[p2], pts, &combinedCH);
+                costMatrix[idx++] = ComputeConcavity(volume1 + m_convexHulls[p2]->ComputeVolume(), combinedCH.ComputeVolume(), m_volumeCH0);
+            }
+        }
+
+        // Until we cant merge below the maximum cost
+        size_t costSize = m_convexHulls.Size();
+        while (!m_cancel) 
+		{
+            msg.str("");
+            msg << "Iteration " << iteration++;
+            m_operation = msg.str();
+
+            // Search for lowest cost
+            float bestCost = (std::numeric_limits<float>::max)();
+            const size_t addr = FindMinimumElement(costMatrix.Data(), &bestCost, 0, costMatrix.Size());
+			if ( (costSize-1) < params.m_maxConvexHulls)
+			{
+				break;
+			}
+            const size_t addrI = (static_cast<int32_t>(sqrt(1 + (8 * addr))) - 1) >> 1;
+            const size_t p1 = addrI + 1;
+            const size_t p2 = addr - ((addrI * (addrI + 1)) >> 1);
+            assert(p1 >= 0);
+            assert(p2 >= 0);
+            assert(p1 < costSize);
+            assert(p2 < costSize);
+
+            if (params.m_logger) 
+			{
+                msg.str("");
+                msg << "\t\t Merging (" << p1 << ", " << p2 << ") " << bestCost << std::endl
+                    << std::endl;
+                params.m_logger->Log(msg.str().c_str());
+            }
+
+            // Make the lowest cost row and column into a new hull
+            Mesh* cch = new Mesh;
+            ComputeConvexHull(m_convexHulls[p1], m_convexHulls[p2], pts, cch);
+            delete m_convexHulls[p2];
+            m_convexHulls[p2] = cch;
+
+            delete m_convexHulls[p1];
+            std::swap(m_convexHulls[p1], m_convexHulls[m_convexHulls.Size() - 1]);
+            m_convexHulls.PopBack();
+
+            costSize = costSize - 1;
+
+            // Calculate costs versus the new hull
+            size_t rowIdx = ((p2 - 1) * p2) >> 1;
+            const float volume1 = m_convexHulls[p2]->ComputeVolume();
+            for (size_t i = 0; (i < p2) && (!m_cancel); ++i) 
+			{
+                ComputeConvexHull(m_convexHulls[p2], m_convexHulls[i], pts, &combinedCH);
+                costMatrix[rowIdx++] = ComputeConcavity(volume1 + m_convexHulls[i]->ComputeVolume(), combinedCH.ComputeVolume(), m_volumeCH0);
+            }
+
+            rowIdx += p2;
+            for (size_t i = p2 + 1; (i < costSize) && (!m_cancel); ++i) 
+			{
+                ComputeConvexHull(m_convexHulls[p2], m_convexHulls[i], pts, &combinedCH);
+                costMatrix[rowIdx] = ComputeConcavity(volume1 + m_convexHulls[i]->ComputeVolume(), combinedCH.ComputeVolume(), m_volumeCH0);
+                rowIdx += i;
+                assert(rowIdx >= 0);
+            }
+
+            // Move the top column in to replace its space
+            const size_t erase_idx = ((costSize - 1) * costSize) >> 1;
+            if (p1 < costSize) {
+                rowIdx = (addrI * p1) >> 1;
+                size_t top_row = erase_idx;
+                for (size_t i = 0; i < p1; ++i) {
+                    if (i != p2) {
+                        costMatrix[rowIdx] = costMatrix[top_row];
+                    }
+                    ++rowIdx;
+                    ++top_row;
+                }
+
+                ++top_row;
+                rowIdx += p1;
+                for (size_t i = p1 + 1; i < (costSize + 1); ++i) {
+                    costMatrix[rowIdx] = costMatrix[top_row++];
+                    rowIdx += i;
+                    assert(rowIdx >= 0);
+                }
+            }
+            costMatrix.Resize(erase_idx);
+        }
+    }
+    m_overallProgress = 99.0;
+    Update(100.0, 100.0, params);
+    m_timer.Toc();
+    if (params.m_logger) {
+        msg.str("");
+        msg << "\t time " << m_timer.GetElapsedTime() / 1000.0 << "s" << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+}
+void VHACD::SimplifyConvexHull(Mesh* const ch, const size_t nvertices, const double minVolume)
+{
+    if (nvertices <= 4) {
+        return;
+    }
+    ICHull icHull;
+    if (mRaycastMesh)
+    {
+        // We project these points onto the original source mesh to increase precision
+        // The voxelization process drops floating point precision so returned data points are not exactly lying on the 
+        // surface of the original source mesh.
+        // The first step is we need to compute the bounding box of the mesh we are trying to build a convex hull for.
+        // From this bounding box, we compute the length of the diagonal to get a relative size and center for point projection
+        uint32_t nPoints = ch->GetNPoints();
+        Vec3<double> *inputPoints = ch->GetPointsBuffer();
+        Vec3<double> bmin(inputPoints[0]);
+        Vec3<double> bmax(inputPoints[1]);
+        for (uint32_t i = 1; i < nPoints; i++)
+        {
+            const Vec3<double> &p = inputPoints[i];
+            p.UpdateMinMax(bmin, bmax);
+        }
+        Vec3<double> center;
+        double diagonalLength = center.GetCenter(bmin, bmax);   // Get the center of the bounding box
+        // This is the error threshold for determining if we should use the raycast result data point vs. the voxelized result.
+        double pointDistanceThreshold = diagonalLength * 0.05;
+        // If a new point is within 1/100th the diagonal length of the bounding volume we do not add it.  To do so would create a
+        // thin sliver in the resulting convex hull
+        double snapDistanceThreshold = diagonalLength * 0.01;
+        double snapDistanceThresholdSquared = snapDistanceThreshold*snapDistanceThreshold;
+
+        // Allocate buffer for projected vertices
+        Vec3<double> *outputPoints = new Vec3<double>[nPoints];
+        uint32_t outCount = 0;
+        for (uint32_t i = 0; i < nPoints; i++)
+        {
+            Vec3<double> &inputPoint = inputPoints[i];
+            Vec3<double> &outputPoint = outputPoints[outCount];
+            // Compute the direction vector from the center of this mesh to the vertex
+            Vec3<double> dir = inputPoint - center;
+            // Normalize the direction vector.
+            dir.Normalize();
+            // Multiply times the diagonal length of the mesh
+            dir *= diagonalLength;
+            // Add the center back in again to get the destination point
+            dir += center;
+            // By default the output point is equal to the input point
+            outputPoint = inputPoint;
+            double pointDistance;
+            if (mRaycastMesh->raycast(center.GetData(), dir.GetData(), inputPoint.GetData(), outputPoint.GetData(),&pointDistance) )
+            {
+                // If the nearest intersection point is too far away, we keep the original source data point.
+                // Not all points lie directly on the original mesh surface
+                if (pointDistance > pointDistanceThreshold)
+                {
+                    outputPoint = inputPoint;
+                }
+            }
+            // Ok, before we add this point, we do not want to create points which are extremely close to each other.
+            // This will result in tiny sliver triangles which are really bad for collision detection.
+            bool foundNearbyPoint = false;
+            for (uint32_t j = 0; j < outCount; j++)
+            {
+                // If this new point is extremely close to an existing point, we do not add it!
+                double squaredDistance = outputPoints[j].GetDistanceSquared(outputPoint);
+                if (squaredDistance < snapDistanceThresholdSquared )
+                {
+                    foundNearbyPoint = true;
+                    break;
+                }
+            }
+            if (!foundNearbyPoint)
+            {
+                outCount++;
+            }
+        }
+        icHull.AddPoints(outputPoints, outCount);
+        delete[]outputPoints;
+    }
+    else
+    {
+        icHull.AddPoints(ch->GetPointsBuffer(), ch->GetNPoints());
+    }
+    icHull.Process((uint32_t)nvertices, minVolume);
+    TMMesh& mesh = icHull.GetMesh();
+    const size_t nT = mesh.GetNTriangles();
+    const size_t nV = mesh.GetNVertices();
+    ch->ResizePoints(nV);
+    ch->ResizeTriangles(nT);
+    mesh.GetIFS(ch->GetPointsBuffer(), ch->GetTrianglesBuffer());
+}
+void VHACD::SimplifyConvexHulls(const Parameters& params)
+{
+    if (m_cancel || params.m_maxNumVerticesPerCH < 4) {
+        return;
+    }
+    m_timer.Tic();
+
+    m_stage = "Simplify convex-hulls";
+    m_operation = "Simplify convex-hulls";
+
+    std::ostringstream msg;
+    const size_t nConvexHulls = m_convexHulls.Size();
+    if (params.m_logger) {
+        msg << "+ Simplify " << nConvexHulls << " convex-hulls " << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+
+    Update(0.0, 0.0, params);
+    for (size_t i = 0; i < nConvexHulls && !m_cancel; ++i) {
+        if (params.m_logger) {
+            msg.str("");
+            msg << "\t\t Simplify CH[" << std::setfill('0') << std::setw(5) << i << "] " << m_convexHulls[i]->GetNPoints() << " V, " << m_convexHulls[i]->GetNTriangles() << " T" << std::endl;
+            params.m_logger->Log(msg.str().c_str());
+        }
+        SimplifyConvexHull(m_convexHulls[i], params.m_maxNumVerticesPerCH, m_volumeCH0 * params.m_minVolumePerCH);
+    }
+
+    m_overallProgress = 100.0;
+    Update(100.0, 100.0, params);
+    m_timer.Toc();
+    if (params.m_logger) {
+        msg.str("");
+        msg << "\t time " << m_timer.GetElapsedTime() / 1000.0 << "s" << std::endl;
+        params.m_logger->Log(msg.str().c_str());
+    }
+}
+
+bool VHACD::ComputeCenterOfMass(double centerOfMass[3]) const
+{
+	bool ret = false;
+
+	centerOfMass[0] = 0;
+	centerOfMass[1] = 0;
+	centerOfMass[2] = 0;
+	// Get number of convex hulls in the result
+	uint32_t hullCount = GetNConvexHulls();
+	if (hullCount) // if we have results
+	{
+		ret = true;
+		double totalVolume = 0;
+		// Initialize the center of mass to zero
+		centerOfMass[0] = 0;
+		centerOfMass[1] = 0;
+		centerOfMass[2] = 0;
+		// Compute the total volume of all convex hulls
+		for (uint32_t i = 0; i < hullCount; i++)
+		{
+			ConvexHull ch;
+			GetConvexHull(i, ch);
+			totalVolume += ch.m_volume;
+		}
+		// compute the reciprocal of the total volume
+		double recipVolume = 1.0 / totalVolume;
+		// Add in the weighted by volume average of the center point of each convex hull
+		for (uint32_t i = 0; i < hullCount; i++)
+		{
+			ConvexHull ch;
+			GetConvexHull(i, ch);
+			double ratio = ch.m_volume*recipVolume;
+			centerOfMass[0] += ch.m_center[0] * ratio;
+			centerOfMass[1] += ch.m_center[1] * ratio;
+			centerOfMass[2] += ch.m_center[2] * ratio;
+		}
+	}
+	return ret;
+}
+
+} // end of VHACD namespace
diff --git a/thirdparty/vhacd/src/btAlignedAllocator.cpp b/thirdparty/vhacd/src/btAlignedAllocator.cpp
new file mode 100644
index 0000000000..8dee31e7e3
--- /dev/null
+++ b/thirdparty/vhacd/src/btAlignedAllocator.cpp
@@ -0,0 +1,192 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it freely,
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "btAlignedAllocator.h"
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+#ifdef _MSC_VER
+#pragma warning(disable:4311 4302)
+#endif
+
+int32_t gNumAlignedAllocs = 0;
+int32_t gNumAlignedFree = 0;
+int32_t gTotalBytesAlignedAllocs = 0; //detect memory leaks
+
+static void* btAllocDefault(size_t size)
+{
+    return malloc(size);
+}
+
+static void btFreeDefault(void* ptr)
+{
+    free(ptr);
+}
+
+static btAllocFunc* sAllocFunc = btAllocDefault;
+static btFreeFunc* sFreeFunc = btFreeDefault;
+
+#if defined(BT_HAS_ALIGNED_ALLOCATOR)
+#include <malloc.h>
+static void* btAlignedAllocDefault(size_t size, int32_t alignment)
+{
+    return _aligned_malloc(size, (size_t)alignment);
+}
+
+static void btAlignedFreeDefault(void* ptr)
+{
+    _aligned_free(ptr);
+}
+#elif defined(__CELLOS_LV2__)
+#include <stdlib.h>
+
+static inline void* btAlignedAllocDefault(size_t size, int32_t alignment)
+{
+    return memalign(alignment, size);
+}
+
+static inline void btAlignedFreeDefault(void* ptr)
+{
+    free(ptr);
+}
+#else
+static inline void* btAlignedAllocDefault(size_t size, int32_t alignment)
+{
+    void* ret;
+    char* real;
+    unsigned long offset;
+
+    real = (char*)sAllocFunc(size + sizeof(void*) + (alignment - 1));
+    if (real) {
+        // -- GODOT start --
+        // Synced with Bullet 2.88 to fix GH-27926
+        //offset = (alignment - (unsigned long)(real + sizeof(void*))) & (alignment - 1);
+        //ret = (void*)((real + sizeof(void*)) + offset);
+        ret = btAlignPointer(real + sizeof(void *), alignment);
+        // -- GODOT end --
+        *((void**)(ret)-1) = (void*)(real);
+    }
+    else {
+        ret = (void*)(real);
+    }
+    return (ret);
+}
+
+static inline void btAlignedFreeDefault(void* ptr)
+{
+    void* real;
+
+    if (ptr) {
+        real = *((void**)(ptr)-1);
+        sFreeFunc(real);
+    }
+}
+#endif
+
+static btAlignedAllocFunc* sAlignedAllocFunc = btAlignedAllocDefault;
+static btAlignedFreeFunc* sAlignedFreeFunc = btAlignedFreeDefault;
+
+void btAlignedAllocSetCustomAligned(btAlignedAllocFunc* allocFunc, btAlignedFreeFunc* freeFunc)
+{
+    sAlignedAllocFunc = allocFunc ? allocFunc : btAlignedAllocDefault;
+    sAlignedFreeFunc = freeFunc ? freeFunc : btAlignedFreeDefault;
+}
+
+void btAlignedAllocSetCustom(btAllocFunc* allocFunc, btFreeFunc* freeFunc)
+{
+    sAllocFunc = allocFunc ? allocFunc : btAllocDefault;
+    sFreeFunc = freeFunc ? freeFunc : btFreeDefault;
+}
+
+#ifdef BT_DEBUG_MEMORY_ALLOCATIONS
+//this generic allocator provides the total allocated number of bytes
+#include <stdio.h>
+
+void* btAlignedAllocInternal(size_t size, int32_t alignment, int32_t line, char* filename)
+{
+    void* ret;
+    char* real;
+    unsigned long offset;
+
+    gTotalBytesAlignedAllocs += size;
+    gNumAlignedAllocs++;
+
+    real = (char*)sAllocFunc(size + 2 * sizeof(void*) + (alignment - 1));
+    if (real) {
+        offset = (alignment - (unsigned long)(real + 2 * sizeof(void*))) & (alignment - 1);
+        ret = (void*)((real + 2 * sizeof(void*)) + offset);
+        *((void**)(ret)-1) = (void*)(real);
+        *((int32_t*)(ret)-2) = size;
+    }
+    else {
+        ret = (void*)(real); //??
+    }
+
+    printf("allocation#%d at address %x, from %s,line %d, size %d\n", gNumAlignedAllocs, real, filename, line, size);
+
+    int32_t* ptr = (int32_t*)ret;
+    *ptr = 12;
+    return (ret);
+}
+
+void btAlignedFreeInternal(void* ptr, int32_t line, char* filename)
+{
+
+    void* real;
+    gNumAlignedFree++;
+
+    if (ptr) {
+        real = *((void**)(ptr)-1);
+        int32_t size = *((int32_t*)(ptr)-2);
+        gTotalBytesAlignedAllocs -= size;
+
+        printf("free #%d at address %x, from %s,line %d, size %d\n", gNumAlignedFree, real, filename, line, size);
+
+        sFreeFunc(real);
+    }
+    else {
+        printf("NULL ptr\n");
+    }
+}
+
+#else //BT_DEBUG_MEMORY_ALLOCATIONS
+
+void* btAlignedAllocInternal(size_t size, int32_t alignment)
+{
+    gNumAlignedAllocs++;
+    void* ptr;
+    ptr = sAlignedAllocFunc(size, alignment);
+    //	printf("btAlignedAllocInternal %d, %x\n",size,ptr);
+    return ptr;
+}
+
+void btAlignedFreeInternal(void* ptr)
+{
+    if (!ptr) {
+        return;
+    }
+
+    gNumAlignedFree++;
+    //	printf("btAlignedFreeInternal %x\n",ptr);
+    sAlignedFreeFunc(ptr);
+}
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
+
+#endif //BT_DEBUG_MEMORY_ALLOCATIONS
diff --git a/thirdparty/vhacd/src/btConvexHullComputer.cpp b/thirdparty/vhacd/src/btConvexHullComputer.cpp
new file mode 100644
index 0000000000..8ab34af2ab
--- /dev/null
+++ b/thirdparty/vhacd/src/btConvexHullComputer.cpp
@@ -0,0 +1,2487 @@
+/*
+Copyright (c) 2011 Ole Kniemeyer, MAXON, www.maxon.net
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include <string.h>
+
+#include "btAlignedObjectArray.h"
+#include "btConvexHullComputer.h"
+#include "btMinMax.h"
+#include "btVector3.h"
+
+#ifdef __GNUC__
+#include <stdint.h>
+#elif defined(_MSC_VER)
+typedef __int32 int32_t;
+typedef __int64 int64_t;
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+#else
+typedef int32_t int32_t;
+typedef long long int32_t int64_t;
+typedef uint32_t uint32_t;
+typedef unsigned long long int32_t uint64_t;
+#endif
+
+#ifdef _MSC_VER
+#pragma warning(disable:4458)
+#endif
+
+//The definition of USE_X86_64_ASM is moved into the build system. You can enable it manually by commenting out the following lines
+//#if (defined(__GNUC__) && defined(__x86_64__) && !defined(__ICL))  // || (defined(__ICL) && defined(_M_X64))   bug in Intel compiler, disable inline assembly
+//	#define USE_X86_64_ASM
+//#endif
+
+//#define DEBUG_CONVEX_HULL
+//#define SHOW_ITERATIONS
+
+#if defined(DEBUG_CONVEX_HULL) || defined(SHOW_ITERATIONS)
+#include <stdio.h>
+#endif
+
+// -- GODOT start --
+namespace VHACD {
+// -- GODOT end --
+
+// Convex hull implementation based on Preparata and Hong
+// Ole Kniemeyer, MAXON Computer GmbH
+class btConvexHullInternal {
+public:
+    class Point64 {
+    public:
+        int64_t x;
+        int64_t y;
+        int64_t z;
+
+        Point64(int64_t x, int64_t y, int64_t z)
+            : x(x)
+            , y(y)
+            , z(z)
+        {
+        }
+
+        bool isZero()
+        {
+            return (x == 0) && (y == 0) && (z == 0);
+        }
+
+        int64_t dot(const Point64& b) const
+        {
+            return x * b.x + y * b.y + z * b.z;
+        }
+    };
+
+    class Point32 {
+    public:
+        int32_t x;
+        int32_t y;
+        int32_t z;
+        int32_t index;
+
+        Point32()
+        {
+        }
+
+        Point32(int32_t x, int32_t y, int32_t z)
+            : x(x)
+            , y(y)
+            , z(z)
+            , index(-1)
+        {
+        }
+
+        bool operator==(const Point32& b) const
+        {
+            return (x == b.x) && (y == b.y) && (z == b.z);
+        }
+
+        bool operator!=(const Point32& b) const
+        {
+            return (x != b.x) || (y != b.y) || (z != b.z);
+        }
+
+        bool isZero()
+        {
+            return (x == 0) && (y == 0) && (z == 0);
+        }
+
+        Point64 cross(const Point32& b) const
+        {
+            return Point64(y * b.z - z * b.y, z * b.x - x * b.z, x * b.y - y * b.x);
+        }
+
+        Point64 cross(const Point64& b) const
+        {
+            return Point64(y * b.z - z * b.y, z * b.x - x * b.z, x * b.y - y * b.x);
+        }
+
+        int64_t dot(const Point32& b) const
+        {
+            return x * b.x + y * b.y + z * b.z;
+        }
+
+        int64_t dot(const Point64& b) const
+        {
+            return x * b.x + y * b.y + z * b.z;
+        }
+
+        Point32 operator+(const Point32& b) const
+        {
+            return Point32(x + b.x, y + b.y, z + b.z);
+        }
+
+        Point32 operator-(const Point32& b) const
+        {
+            return Point32(x - b.x, y - b.y, z - b.z);
+        }
+    };
+
+    class Int128 {
+    public:
+        uint64_t low;
+        uint64_t high;
+
+        Int128()
+        {
+        }
+
+        Int128(uint64_t low, uint64_t high)
+            : low(low)
+            , high(high)
+        {
+        }
+
+        Int128(uint64_t low)
+            : low(low)
+            , high(0)
+        {
+        }
+
+        Int128(int64_t value)
+            : low(value)
+            , high((value >= 0) ? 0 : (uint64_t)-1LL)
+        {
+        }
+
+        static Int128 mul(int64_t a, int64_t b);
+
+        static Int128 mul(uint64_t a, uint64_t b);
+
+        Int128 operator-() const
+        {
+            return Int128((uint64_t) - (int64_t)low, ~high + (low == 0));
+        }
+
+        Int128 operator+(const Int128& b) const
+        {
+#ifdef USE_X86_64_ASM
+            Int128 result;
+            __asm__("addq %[bl], %[rl]\n\t"
+                    "adcq %[bh], %[rh]\n\t"
+                    : [rl] "=r"(result.low), [rh] "=r"(result.high)
+                    : "0"(low), "1"(high), [bl] "g"(b.low), [bh] "g"(b.high)
+                    : "cc");
+            return result;
+#else
+            uint64_t lo = low + b.low;
+            return Int128(lo, high + b.high + (lo < low));
+#endif
+        }
+
+        Int128 operator-(const Int128& b) const
+        {
+#ifdef USE_X86_64_ASM
+            Int128 result;
+            __asm__("subq %[bl], %[rl]\n\t"
+                    "sbbq %[bh], %[rh]\n\t"
+                    : [rl] "=r"(result.low), [rh] "=r"(result.high)
+                    : "0"(low), "1"(high), [bl] "g"(b.low), [bh] "g"(b.high)
+                    : "cc");
+            return result;
+#else
+            return *this + -b;
+#endif
+        }
+
+        Int128& operator+=(const Int128& b)
+        {
+#ifdef USE_X86_64_ASM
+            __asm__("addq %[bl], %[rl]\n\t"
+                    "adcq %[bh], %[rh]\n\t"
+                    : [rl] "=r"(low), [rh] "=r"(high)
+                    : "0"(low), "1"(high), [bl] "g"(b.low), [bh] "g"(b.high)
+                    : "cc");
+#else
+            uint64_t lo = low + b.low;
+            if (lo < low) {
+                ++high;
+            }
+            low = lo;
+            high += b.high;
+#endif
+            return *this;
+        }
+
+        Int128& operator++()
+        {
+            if (++low == 0) {
+                ++high;
+            }
+            return *this;
+        }
+
+        Int128 operator*(int64_t b) const;
+
+        btScalar toScalar() const
+        {
+            return ((int64_t)high >= 0) ? btScalar(high) * (btScalar(0x100000000LL) * btScalar(0x100000000LL)) + btScalar(low)
+                                        : -(-*this).toScalar();
+        }
+
+        int32_t getSign() const
+        {
+            return ((int64_t)high < 0) ? -1 : (high || low) ? 1 : 0;
+        }
+
+        bool operator<(const Int128& b) const
+        {
+            return (high < b.high) || ((high == b.high) && (low < b.low));
+        }
+
+        int32_t ucmp(const Int128& b) const
+        {
+            if (high < b.high) {
+                return -1;
+            }
+            if (high > b.high) {
+                return 1;
+            }
+            if (low < b.low) {
+                return -1;
+            }
+            if (low > b.low) {
+                return 1;
+            }
+            return 0;
+        }
+    };
+
+    class Rational64 {
+    private:
+        uint64_t m_numerator;
+        uint64_t m_denominator;
+        int32_t sign;
+
+    public:
+        Rational64(int64_t numerator, int64_t denominator)
+        {
+            if (numerator > 0) {
+                sign = 1;
+                m_numerator = (uint64_t)numerator;
+            }
+            else if (numerator < 0) {
+                sign = -1;
+                m_numerator = (uint64_t)-numerator;
+            }
+            else {
+                sign = 0;
+                m_numerator = 0;
+            }
+            if (denominator > 0) {
+                m_denominator = (uint64_t)denominator;
+            }
+            else if (denominator < 0) {
+                sign = -sign;
+                m_denominator = (uint64_t)-denominator;
+            }
+            else {
+                m_denominator = 0;
+            }
+        }
+
+        bool isNegativeInfinity() const
+        {
+            return (sign < 0) && (m_denominator == 0);
+        }
+
+        bool isNaN() const
+        {
+            return (sign == 0) && (m_denominator == 0);
+        }
+
+        int32_t compare(const Rational64& b) const;
+
+        btScalar toScalar() const
+        {
+            return sign * ((m_denominator == 0) ? SIMD_INFINITY : (btScalar)m_numerator / m_denominator);
+        }
+    };
+
+    class Rational128 {
+    private:
+        Int128 numerator;
+        Int128 denominator;
+        int32_t sign;
+        bool isInt64;
+
+    public:
+        Rational128(int64_t value)
+        {
+            if (value > 0) {
+                sign = 1;
+                this->numerator = value;
+            }
+            else if (value < 0) {
+                sign = -1;
+                this->numerator = -value;
+            }
+            else {
+                sign = 0;
+                this->numerator = (uint64_t)0;
+            }
+            this->denominator = (uint64_t)1;
+            isInt64 = true;
+        }
+
+        Rational128(const Int128& numerator, const Int128& denominator)
+        {
+            sign = numerator.getSign();
+            if (sign >= 0) {
+                this->numerator = numerator;
+            }
+            else {
+                this->numerator = -numerator;
+            }
+            int32_t dsign = denominator.getSign();
+            if (dsign >= 0) {
+                this->denominator = denominator;
+            }
+            else {
+                sign = -sign;
+                this->denominator = -denominator;
+            }
+            isInt64 = false;
+        }
+
+        int32_t compare(const Rational128& b) const;
+
+        int32_t compare(int64_t b) const;
+
+        btScalar toScalar() const
+        {
+            return sign * ((denominator.getSign() == 0) ? SIMD_INFINITY : numerator.toScalar() / denominator.toScalar());
+        }
+    };
+
+    class PointR128 {
+    public:
+        Int128 x;
+        Int128 y;
+        Int128 z;
+        Int128 denominator;
+
+        PointR128()
+        {
+        }
+
+        PointR128(Int128 x, Int128 y, Int128 z, Int128 denominator)
+            : x(x)
+            , y(y)
+            , z(z)
+            , denominator(denominator)
+        {
+        }
+
+        btScalar xvalue() const
+        {
+            return x.toScalar() / denominator.toScalar();
+        }
+
+        btScalar yvalue() const
+        {
+            return y.toScalar() / denominator.toScalar();
+        }
+
+        btScalar zvalue() const
+        {
+            return z.toScalar() / denominator.toScalar();
+        }
+    };
+
+    class Edge;
+    class Face;
+
+    class Vertex {
+    public:
+        Vertex* next;
+        Vertex* prev;
+        Edge* edges;
+        Face* firstNearbyFace;
+        Face* lastNearbyFace;
+        PointR128 point128;
+        Point32 point;
+        int32_t copy;
+
+        Vertex()
+            : next(NULL)
+            , prev(NULL)
+            , edges(NULL)
+            , firstNearbyFace(NULL)
+            , lastNearbyFace(NULL)
+            , copy(-1)
+        {
+        }
+
+#ifdef DEBUG_CONVEX_HULL
+        void print()
+        {
+            printf("V%d (%d, %d, %d)", point.index, point.x, point.y, point.z);
+        }
+
+        void printGraph();
+#endif
+
+        Point32 operator-(const Vertex& b) const
+        {
+            return point - b.point;
+        }
+
+        Rational128 dot(const Point64& b) const
+        {
+            return (point.index >= 0) ? Rational128(point.dot(b))
+                                      : Rational128(point128.x * b.x + point128.y * b.y + point128.z * b.z, point128.denominator);
+        }
+
+        btScalar xvalue() const
+        {
+            return (point.index >= 0) ? btScalar(point.x) : point128.xvalue();
+        }
+
+        btScalar yvalue() const
+        {
+            return (point.index >= 0) ? btScalar(point.y) : point128.yvalue();
+        }
+
+        btScalar zvalue() const
+        {
+            return (point.index >= 0) ? btScalar(point.z) : point128.zvalue();
+        }
+
+        void receiveNearbyFaces(Vertex* src)
+        {
+            if (lastNearbyFace) {
+                lastNearbyFace->nextWithSameNearbyVertex = src->firstNearbyFace;
+            }
+            else {
+                firstNearbyFace = src->firstNearbyFace;
+            }
+            if (src->lastNearbyFace) {
+                lastNearbyFace = src->lastNearbyFace;
+            }
+            for (Face* f = src->firstNearbyFace; f; f = f->nextWithSameNearbyVertex) {
+                btAssert(f->nearbyVertex == src);
+                f->nearbyVertex = this;
+            }
+            src->firstNearbyFace = NULL;
+            src->lastNearbyFace = NULL;
+        }
+    };
+
+    class Edge {
+    public:
+        Edge* next;
+        Edge* prev;
+        Edge* reverse;
+        Vertex* target;
+        Face* face;
+        int32_t copy;
+
+        ~Edge()
+        {
+            next = NULL;
+            prev = NULL;
+            reverse = NULL;
+            target = NULL;
+            face = NULL;
+        }
+
+        void link(Edge* n)
+        {
+            btAssert(reverse->target == n->reverse->target);
+            next = n;
+            n->prev = this;
+        }
+
+#ifdef DEBUG_CONVEX_HULL
+        void print()
+        {
+            printf("E%p : %d -> %d,  n=%p p=%p   (0 %d\t%d\t%d) -> (%d %d %d)", this, reverse->target->point.index, target->point.index, next, prev,
+                reverse->target->point.x, reverse->target->point.y, reverse->target->point.z, target->point.x, target->point.y, target->point.z);
+        }
+#endif
+    };
+
+    class Face {
+    public:
+        Face* next;
+        Vertex* nearbyVertex;
+        Face* nextWithSameNearbyVertex;
+        Point32 origin;
+        Point32 dir0;
+        Point32 dir1;
+
+        Face()
+            : next(NULL)
+            , nearbyVertex(NULL)
+            , nextWithSameNearbyVertex(NULL)
+        {
+        }
+
+        void init(Vertex* a, Vertex* b, Vertex* c)
+        {
+            nearbyVertex = a;
+            origin = a->point;
+            dir0 = *b - *a;
+            dir1 = *c - *a;
+            if (a->lastNearbyFace) {
+                a->lastNearbyFace->nextWithSameNearbyVertex = this;
+            }
+            else {
+                a->firstNearbyFace = this;
+            }
+            a->lastNearbyFace = this;
+        }
+
+        Point64 getNormal()
+        {
+            return dir0.cross(dir1);
+        }
+    };
+
+    template <typename UWord, typename UHWord>
+    class DMul {
+    private:
+        static uint32_t high(uint64_t value)
+        {
+            return (uint32_t)(value >> 32);
+        }
+
+        static uint32_t low(uint64_t value)
+        {
+            return (uint32_t)value;
+        }
+
+        static uint64_t mul(uint32_t a, uint32_t b)
+        {
+            return (uint64_t)a * (uint64_t)b;
+        }
+
+        static void shlHalf(uint64_t& value)
+        {
+            value <<= 32;
+        }
+
+        static uint64_t high(Int128 value)
+        {
+            return value.high;
+        }
+
+        static uint64_t low(Int128 value)
+        {
+            return value.low;
+        }
+
+        static Int128 mul(uint64_t a, uint64_t b)
+        {
+            return Int128::mul(a, b);
+        }
+
+        static void shlHalf(Int128& value)
+        {
+            value.high = value.low;
+            value.low = 0;
+        }
+
+    public:
+        static void mul(UWord a, UWord b, UWord& resLow, UWord& resHigh)
+        {
+            UWord p00 = mul(low(a), low(b));
+            UWord p01 = mul(low(a), high(b));
+            UWord p10 = mul(high(a), low(b));
+            UWord p11 = mul(high(a), high(b));
+            UWord p0110 = UWord(low(p01)) + UWord(low(p10));
+            p11 += high(p01);
+            p11 += high(p10);
+            p11 += high(p0110);
+            shlHalf(p0110);
+            p00 += p0110;
+            if (p00 < p0110) {
+                ++p11;
+            }
+            resLow = p00;
+            resHigh = p11;
+        }
+    };
+
+private:
+    class IntermediateHull {
+    public:
+        Vertex* minXy;
+        Vertex* maxXy;
+        Vertex* minYx;
+        Vertex* maxYx;
+
+        IntermediateHull()
+            : minXy(NULL)
+            , maxXy(NULL)
+            , minYx(NULL)
+            , maxYx(NULL)
+        {
+        }
+
+        void print();
+    };
+
+    enum Orientation { NONE,
+        CLOCKWISE,
+        COUNTER_CLOCKWISE };
+
+    template <typename T>
+    class PoolArray {
+    private:
+        T* array;
+        int32_t size;
+
+    public:
+        PoolArray<T>* next;
+
+        PoolArray(int32_t size)
+            : size(size)
+            , next(NULL)
+        {
+            array = (T*)btAlignedAlloc(sizeof(T) * size, 16);
+        }
+
+        ~PoolArray()
+        {
+            btAlignedFree(array);
+        }
+
+        T* init()
+        {
+            T* o = array;
+            for (int32_t i = 0; i < size; i++, o++) {
+                o->next = (i + 1 < size) ? o + 1 : NULL;
+            }
+            return array;
+        }
+    };
+
+    template <typename T>
+    class Pool {
+    private:
+        PoolArray<T>* arrays;
+        PoolArray<T>* nextArray;
+        T* freeObjects;
+        int32_t arraySize;
+
+    public:
+        Pool()
+            : arrays(NULL)
+            , nextArray(NULL)
+            , freeObjects(NULL)
+            , arraySize(256)
+        {
+        }
+
+        ~Pool()
+        {
+            while (arrays) {
+                PoolArray<T>* p = arrays;
+                arrays = p->next;
+                p->~PoolArray<T>();
+                btAlignedFree(p);
+            }
+        }
+
+        void reset()
+        {
+            nextArray = arrays;
+            freeObjects = NULL;
+        }
+
+        void setArraySize(int32_t arraySize)
+        {
+            this->arraySize = arraySize;
+        }
+
+        T* newObject()
+        {
+            T* o = freeObjects;
+            if (!o) {
+                PoolArray<T>* p = nextArray;
+                if (p) {
+                    nextArray = p->next;
+                }
+                else {
+                    p = new (btAlignedAlloc(sizeof(PoolArray<T>), 16)) PoolArray<T>(arraySize);
+                    p->next = arrays;
+                    arrays = p;
+                }
+                o = p->init();
+            }
+            freeObjects = o->next;
+            return new (o) T();
+        };
+
+        void freeObject(T* object)
+        {
+            object->~T();
+            object->next = freeObjects;
+            freeObjects = object;
+        }
+    };
+
+    btVector3 scaling;
+    btVector3 center;
+    Pool<Vertex> vertexPool;
+    Pool<Edge> edgePool;
+    Pool<Face> facePool;
+    btAlignedObjectArray<Vertex*> originalVertices;
+    int32_t mergeStamp;
+    int32_t minAxis;
+    int32_t medAxis;
+    int32_t maxAxis;
+    int32_t usedEdgePairs;
+    int32_t maxUsedEdgePairs;
+
+    static Orientation getOrientation(const Edge* prev, const Edge* next, const Point32& s, const Point32& t);
+    Edge* findMaxAngle(bool ccw, const Vertex* start, const Point32& s, const Point64& rxs, const Point64& sxrxs, Rational64& minCot);
+    void findEdgeForCoplanarFaces(Vertex* c0, Vertex* c1, Edge*& e0, Edge*& e1, Vertex* stop0, Vertex* stop1);
+
+    Edge* newEdgePair(Vertex* from, Vertex* to);
+
+    void removeEdgePair(Edge* edge)
+    {
+        Edge* n = edge->next;
+        Edge* r = edge->reverse;
+
+        btAssert(edge->target && r->target);
+
+        if (n != edge) {
+            n->prev = edge->prev;
+            edge->prev->next = n;
+            r->target->edges = n;
+        }
+        else {
+            r->target->edges = NULL;
+        }
+
+        n = r->next;
+
+        if (n != r) {
+            n->prev = r->prev;
+            r->prev->next = n;
+            edge->target->edges = n;
+        }
+        else {
+            edge->target->edges = NULL;
+        }
+
+        edgePool.freeObject(edge);
+        edgePool.freeObject(r);
+        usedEdgePairs--;
+    }
+
+    void computeInternal(int32_t start, int32_t end, IntermediateHull& result);
+
+    bool mergeProjection(IntermediateHull& h0, IntermediateHull& h1, Vertex*& c0, Vertex*& c1);
+
+    void merge(IntermediateHull& h0, IntermediateHull& h1);
+
+    btVector3 toBtVector(const Point32& v);
+
+    btVector3 getBtNormal(Face* face);
+
+    bool shiftFace(Face* face, btScalar amount, btAlignedObjectArray<Vertex*> stack);
+
+public:
+    Vertex* vertexList;
+
+    void compute(const void* coords, bool doubleCoords, int32_t stride, int32_t count);
+
+    btVector3 getCoordinates(const Vertex* v);
+
+    btScalar shrink(btScalar amount, btScalar clampAmount);
+};
+
+btConvexHullInternal::Int128 btConvexHullInternal::Int128::operator*(int64_t b) const
+{
+    bool negative = (int64_t)high < 0;
+    Int128 a = negative ? -*this : *this;
+    if (b < 0) {
+        negative = !negative;
+        b = -b;
+    }
+    Int128 result = mul(a.low, (uint64_t)b);
+    result.high += a.high * (uint64_t)b;
+    return negative ? -result : result;
+}
+
+btConvexHullInternal::Int128 btConvexHullInternal::Int128::mul(int64_t a, int64_t b)
+{
+    Int128 result;
+
+#ifdef USE_X86_64_ASM
+    __asm__("imulq %[b]"
+            : "=a"(result.low), "=d"(result.high)
+            : "0"(a), [b] "r"(b)
+            : "cc");
+    return result;
+
+#else
+    bool negative = a < 0;
+    if (negative) {
+        a = -a;
+    }
+    if (b < 0) {
+        negative = !negative;
+        b = -b;
+    }
+    DMul<uint64_t, uint32_t>::mul((uint64_t)a, (uint64_t)b, result.low, result.high);
+    return negative ? -result : result;
+#endif
+}
+
+btConvexHullInternal::Int128 btConvexHullInternal::Int128::mul(uint64_t a, uint64_t b)
+{
+    Int128 result;
+
+#ifdef USE_X86_64_ASM
+    __asm__("mulq %[b]"
+            : "=a"(result.low), "=d"(result.high)
+            : "0"(a), [b] "r"(b)
+            : "cc");
+
+#else
+    DMul<uint64_t, uint32_t>::mul(a, b, result.low, result.high);
+#endif
+
+    return result;
+}
+
+int32_t btConvexHullInternal::Rational64::compare(const Rational64& b) const
+{
+    if (sign != b.sign) {
+        return sign - b.sign;
+    }
+    else if (sign == 0) {
+        return 0;
+    }
+
+//	return (numerator * b.denominator > b.numerator * denominator) ? sign : (numerator * b.denominator < b.numerator * denominator) ? -sign : 0;
+
+#ifdef USE_X86_64_ASM
+
+    int32_t result;
+    int64_t tmp;
+    int64_t dummy;
+    __asm__("mulq %[bn]\n\t"
+            "movq %%rax, %[tmp]\n\t"
+            "movq %%rdx, %%rbx\n\t"
+            "movq %[tn], %%rax\n\t"
+            "mulq %[bd]\n\t"
+            "subq %[tmp], %%rax\n\t"
+            "sbbq %%rbx, %%rdx\n\t" // rdx:rax contains 128-bit-difference "numerator*b.denominator - b.numerator*denominator"
+            "setnsb %%bh\n\t" // bh=1 if difference is non-negative, bh=0 otherwise
+            "orq %%rdx, %%rax\n\t"
+            "setnzb %%bl\n\t" // bl=1 if difference if non-zero, bl=0 if it is zero
+            "decb %%bh\n\t" // now bx=0x0000 if difference is zero, 0xff01 if it is negative, 0x0001 if it is positive (i.e., same sign as difference)
+            "shll $16, %%ebx\n\t" // ebx has same sign as difference
+            : "=&b"(result), [tmp] "=&r"(tmp), "=a"(dummy)
+            : "a"(denominator), [bn] "g"(b.numerator), [tn] "g"(numerator), [bd] "g"(b.denominator)
+            : "%rdx", "cc");
+    return result ? result ^ sign // if sign is +1, only bit 0 of result is inverted, which does not change the sign of result (and cannot result in zero)
+                  // if sign is -1, all bits of result are inverted, which changes the sign of result (and again cannot result in zero)
+                  : 0;
+
+#else
+
+    return sign * Int128::mul(m_numerator, b.m_denominator).ucmp(Int128::mul(m_denominator, b.m_numerator));
+
+#endif
+}
+
+int32_t btConvexHullInternal::Rational128::compare(const Rational128& b) const
+{
+    if (sign != b.sign) {
+        return sign - b.sign;
+    }
+    else if (sign == 0) {
+        return 0;
+    }
+    if (isInt64) {
+        return -b.compare(sign * (int64_t)numerator.low);
+    }
+
+    Int128 nbdLow, nbdHigh, dbnLow, dbnHigh;
+    DMul<Int128, uint64_t>::mul(numerator, b.denominator, nbdLow, nbdHigh);
+    DMul<Int128, uint64_t>::mul(denominator, b.numerator, dbnLow, dbnHigh);
+
+    int32_t cmp = nbdHigh.ucmp(dbnHigh);
+    if (cmp) {
+        return cmp * sign;
+    }
+    return nbdLow.ucmp(dbnLow) * sign;
+}
+
+int32_t btConvexHullInternal::Rational128::compare(int64_t b) const
+{
+    if (isInt64) {
+        int64_t a = sign * (int64_t)numerator.low;
+        return (a > b) ? 1 : (a < b) ? -1 : 0;
+    }
+    if (b > 0) {
+        if (sign <= 0) {
+            return -1;
+        }
+    }
+    else if (b < 0) {
+        if (sign >= 0) {
+            return 1;
+        }
+        b = -b;
+    }
+    else {
+        return sign;
+    }
+
+    return numerator.ucmp(denominator * b) * sign;
+}
+
+btConvexHullInternal::Edge* btConvexHullInternal::newEdgePair(Vertex* from, Vertex* to)
+{
+    btAssert(from && to);
+    Edge* e = edgePool.newObject();
+    Edge* r = edgePool.newObject();
+    e->reverse = r;
+    r->reverse = e;
+    e->copy = mergeStamp;
+    r->copy = mergeStamp;
+    e->target = to;
+    r->target = from;
+    e->face = NULL;
+    r->face = NULL;
+    usedEdgePairs++;
+    if (usedEdgePairs > maxUsedEdgePairs) {
+        maxUsedEdgePairs = usedEdgePairs;
+    }
+    return e;
+}
+
+bool btConvexHullInternal::mergeProjection(IntermediateHull& h0, IntermediateHull& h1, Vertex*& c0, Vertex*& c1)
+{
+    Vertex* v0 = h0.maxYx;
+    Vertex* v1 = h1.minYx;
+    if ((v0->point.x == v1->point.x) && (v0->point.y == v1->point.y)) {
+        btAssert(v0->point.z < v1->point.z);
+        Vertex* v1p = v1->prev;
+        if (v1p == v1) {
+            c0 = v0;
+            if (v1->edges) {
+                btAssert(v1->edges->next == v1->edges);
+                v1 = v1->edges->target;
+                btAssert(v1->edges->next == v1->edges);
+            }
+            c1 = v1;
+            return false;
+        }
+        Vertex* v1n = v1->next;
+        v1p->next = v1n;
+        v1n->prev = v1p;
+        if (v1 == h1.minXy) {
+            if ((v1n->point.x < v1p->point.x) || ((v1n->point.x == v1p->point.x) && (v1n->point.y < v1p->point.y))) {
+                h1.minXy = v1n;
+            }
+            else {
+                h1.minXy = v1p;
+            }
+        }
+        if (v1 == h1.maxXy) {
+            if ((v1n->point.x > v1p->point.x) || ((v1n->point.x == v1p->point.x) && (v1n->point.y > v1p->point.y))) {
+                h1.maxXy = v1n;
+            }
+            else {
+                h1.maxXy = v1p;
+            }
+        }
+    }
+
+    v0 = h0.maxXy;
+    v1 = h1.maxXy;
+    Vertex* v00 = NULL;
+    Vertex* v10 = NULL;
+    int32_t sign = 1;
+
+    for (int32_t side = 0; side <= 1; side++) {
+        int32_t dx = (v1->point.x - v0->point.x) * sign;
+        if (dx > 0) {
+            while (true) {
+                int32_t dy = v1->point.y - v0->point.y;
+
+                Vertex* w0 = side ? v0->next : v0->prev;
+                if (w0 != v0) {
+                    int32_t dx0 = (w0->point.x - v0->point.x) * sign;
+                    int32_t dy0 = w0->point.y - v0->point.y;
+                    if ((dy0 <= 0) && ((dx0 == 0) || ((dx0 < 0) && (dy0 * dx <= dy * dx0)))) {
+                        v0 = w0;
+                        dx = (v1->point.x - v0->point.x) * sign;
+                        continue;
+                    }
+                }
+
+                Vertex* w1 = side ? v1->next : v1->prev;
+                if (w1 != v1) {
+                    int32_t dx1 = (w1->point.x - v1->point.x) * sign;
+                    int32_t dy1 = w1->point.y - v1->point.y;
+                    int32_t dxn = (w1->point.x - v0->point.x) * sign;
+                    if ((dxn > 0) && (dy1 < 0) && ((dx1 == 0) || ((dx1 < 0) && (dy1 * dx < dy * dx1)))) {
+                        v1 = w1;
+                        dx = dxn;
+                        continue;
+                    }
+                }
+
+                break;
+            }
+        }
+        else if (dx < 0) {
+            while (true) {
+                int32_t dy = v1->point.y - v0->point.y;
+
+                Vertex* w1 = side ? v1->prev : v1->next;
+                if (w1 != v1) {
+                    int32_t dx1 = (w1->point.x - v1->point.x) * sign;
+                    int32_t dy1 = w1->point.y - v1->point.y;
+                    if ((dy1 >= 0) && ((dx1 == 0) || ((dx1 < 0) && (dy1 * dx <= dy * dx1)))) {
+                        v1 = w1;
+                        dx = (v1->point.x - v0->point.x) * sign;
+                        continue;
+                    }
+                }
+
+                Vertex* w0 = side ? v0->prev : v0->next;
+                if (w0 != v0) {
+                    int32_t dx0 = (w0->point.x - v0->point.x) * sign;
+                    int32_t dy0 = w0->point.y - v0->point.y;
+                    int32_t dxn = (v1->point.x - w0->point.x) * sign;
+                    if ((dxn < 0) && (dy0 > 0) && ((dx0 == 0) || ((dx0 < 0) && (dy0 * dx < dy * dx0)))) {
+                        v0 = w0;
+                        dx = dxn;
+                        continue;
+                    }
+                }
+
+                break;
+            }
+        }
+        else {
+            int32_t x = v0->point.x;
+            int32_t y0 = v0->point.y;
+            Vertex* w0 = v0;
+            Vertex* t;
+            while (((t = side ? w0->next : w0->prev) != v0) && (t->point.x == x) && (t->point.y <= y0)) {
+                w0 = t;
+                y0 = t->point.y;
+            }
+            v0 = w0;
+
+            int32_t y1 = v1->point.y;
+            Vertex* w1 = v1;
+            while (((t = side ? w1->prev : w1->next) != v1) && (t->point.x == x) && (t->point.y >= y1)) {
+                w1 = t;
+                y1 = t->point.y;
+            }
+            v1 = w1;
+        }
+
+        if (side == 0) {
+            v00 = v0;
+            v10 = v1;
+
+            v0 = h0.minXy;
+            v1 = h1.minXy;
+            sign = -1;
+        }
+    }
+
+    v0->prev = v1;
+    v1->next = v0;
+
+    v00->next = v10;
+    v10->prev = v00;
+
+    if (h1.minXy->point.x < h0.minXy->point.x) {
+        h0.minXy = h1.minXy;
+    }
+    if (h1.maxXy->point.x >= h0.maxXy->point.x) {
+        h0.maxXy = h1.maxXy;
+    }
+
+    h0.maxYx = h1.maxYx;
+
+    c0 = v00;
+    c1 = v10;
+
+    return true;
+}
+
+void btConvexHullInternal::computeInternal(int32_t start, int32_t end, IntermediateHull& result)
+{
+    int32_t n = end - start;
+    switch (n) {
+    case 0:
+        result.minXy = NULL;
+        result.maxXy = NULL;
+        result.minYx = NULL;
+        result.maxYx = NULL;
+        return;
+    case 2: {
+        Vertex* v = originalVertices[start];
+        Vertex* w = v + 1;
+        if (v->point != w->point) {
+            int32_t dx = v->point.x - w->point.x;
+            int32_t dy = v->point.y - w->point.y;
+
+            if ((dx == 0) && (dy == 0)) {
+                if (v->point.z > w->point.z) {
+                    Vertex* t = w;
+                    w = v;
+                    v = t;
+                }
+                btAssert(v->point.z < w->point.z);
+                v->next = v;
+                v->prev = v;
+                result.minXy = v;
+                result.maxXy = v;
+                result.minYx = v;
+                result.maxYx = v;
+            }
+            else {
+                v->next = w;
+                v->prev = w;
+                w->next = v;
+                w->prev = v;
+
+                if ((dx < 0) || ((dx == 0) && (dy < 0))) {
+                    result.minXy = v;
+                    result.maxXy = w;
+                }
+                else {
+                    result.minXy = w;
+                    result.maxXy = v;
+                }
+
+                if ((dy < 0) || ((dy == 0) && (dx < 0))) {
+                    result.minYx = v;
+                    result.maxYx = w;
+                }
+                else {
+                    result.minYx = w;
+                    result.maxYx = v;
+                }
+            }
+
+            Edge* e = newEdgePair(v, w);
+            e->link(e);
+            v->edges = e;
+
+            e = e->reverse;
+            e->link(e);
+            w->edges = e;
+
+            return;
+        }
+    }
+    // lint -fallthrough
+    case 1: {
+        Vertex* v = originalVertices[start];
+        v->edges = NULL;
+        v->next = v;
+        v->prev = v;
+
+        result.minXy = v;
+        result.maxXy = v;
+        result.minYx = v;
+        result.maxYx = v;
+
+        return;
+    }
+    }
+
+    int32_t split0 = start + n / 2;
+    Point32 p = originalVertices[split0 - 1]->point;
+    int32_t split1 = split0;
+    while ((split1 < end) && (originalVertices[split1]->point == p)) {
+        split1++;
+    }
+    computeInternal(start, split0, result);
+    IntermediateHull hull1;
+    computeInternal(split1, end, hull1);
+#ifdef DEBUG_CONVEX_HULL
+    printf("\n\nMerge\n");
+    result.print();
+    hull1.print();
+#endif
+    merge(result, hull1);
+#ifdef DEBUG_CONVEX_HULL
+    printf("\n  Result\n");
+    result.print();
+#endif
+}
+
+#ifdef DEBUG_CONVEX_HULL
+void btConvexHullInternal::IntermediateHull::print()
+{
+    printf("    Hull\n");
+    for (Vertex* v = minXy; v;) {
+        printf("      ");
+        v->print();
+        if (v == maxXy) {
+            printf(" maxXy");
+        }
+        if (v == minYx) {
+            printf(" minYx");
+        }
+        if (v == maxYx) {
+            printf(" maxYx");
+        }
+        if (v->next->prev != v) {
+            printf(" Inconsistency");
+        }
+        printf("\n");
+        v = v->next;
+        if (v == minXy) {
+            break;
+        }
+    }
+    if (minXy) {
+        minXy->copy = (minXy->copy == -1) ? -2 : -1;
+        minXy->printGraph();
+    }
+}
+
+void btConvexHullInternal::Vertex::printGraph()
+{
+    print();
+    printf("\nEdges\n");
+    Edge* e = edges;
+    if (e) {
+        do {
+            e->print();
+            printf("\n");
+            e = e->next;
+        } while (e != edges);
+        do {
+            Vertex* v = e->target;
+            if (v->copy != copy) {
+                v->copy = copy;
+                v->printGraph();
+            }
+            e = e->next;
+        } while (e != edges);
+    }
+}
+#endif
+
+btConvexHullInternal::Orientation btConvexHullInternal::getOrientation(const Edge* prev, const Edge* next, const Point32& s, const Point32& t)
+{
+    btAssert(prev->reverse->target == next->reverse->target);
+    if (prev->next == next) {
+        if (prev->prev == next) {
+            Point64 n = t.cross(s);
+            Point64 m = (*prev->target - *next->reverse->target).cross(*next->target - *next->reverse->target);
+            btAssert(!m.isZero());
+            int64_t dot = n.dot(m);
+            btAssert(dot != 0);
+            return (dot > 0) ? COUNTER_CLOCKWISE : CLOCKWISE;
+        }
+        return COUNTER_CLOCKWISE;
+    }
+    else if (prev->prev == next) {
+        return CLOCKWISE;
+    }
+    else {
+        return NONE;
+    }
+}
+
+btConvexHullInternal::Edge* btConvexHullInternal::findMaxAngle(bool ccw, const Vertex* start, const Point32& s, const Point64& rxs, const Point64& sxrxs, Rational64& minCot)
+{
+    Edge* minEdge = NULL;
+
+#ifdef DEBUG_CONVEX_HULL
+    printf("find max edge for %d\n", start->point.index);
+#endif
+    Edge* e = start->edges;
+    if (e) {
+        do {
+            if (e->copy > mergeStamp) {
+                Point32 t = *e->target - *start;
+                Rational64 cot(t.dot(sxrxs), t.dot(rxs));
+#ifdef DEBUG_CONVEX_HULL
+                printf("      Angle is %f (%d) for ", (float)btAtan(cot.toScalar()), (int32_t)cot.isNaN());
+                e->print();
+#endif
+                if (cot.isNaN()) {
+                    btAssert(ccw ? (t.dot(s) < 0) : (t.dot(s) > 0));
+                }
+                else {
+                    int32_t cmp;
+                    if (minEdge == NULL) {
+                        minCot = cot;
+                        minEdge = e;
+                    }
+                    else if ((cmp = cot.compare(minCot)) < 0) {
+                        minCot = cot;
+                        minEdge = e;
+                    }
+                    else if ((cmp == 0) && (ccw == (getOrientation(minEdge, e, s, t) == COUNTER_CLOCKWISE))) {
+                        minEdge = e;
+                    }
+                }
+#ifdef DEBUG_CONVEX_HULL
+                printf("\n");
+#endif
+            }
+            e = e->next;
+        } while (e != start->edges);
+    }
+    return minEdge;
+}
+
+void btConvexHullInternal::findEdgeForCoplanarFaces(Vertex* c0, Vertex* c1, Edge*& e0, Edge*& e1, Vertex* stop0, Vertex* stop1)
+{
+    Edge* start0 = e0;
+    Edge* start1 = e1;
+    Point32 et0 = start0 ? start0->target->point : c0->point;
+    Point32 et1 = start1 ? start1->target->point : c1->point;
+    Point32 s = c1->point - c0->point;
+    Point64 normal = ((start0 ? start0 : start1)->target->point - c0->point).cross(s);
+    int64_t dist = c0->point.dot(normal);
+    btAssert(!start1 || (start1->target->point.dot(normal) == dist));
+    Point64 perp = s.cross(normal);
+    btAssert(!perp.isZero());
+
+#ifdef DEBUG_CONVEX_HULL
+    printf("   Advancing %d %d  (%p %p, %d %d)\n", c0->point.index, c1->point.index, start0, start1, start0 ? start0->target->point.index : -1, start1 ? start1->target->point.index : -1);
+#endif
+
+    int64_t maxDot0 = et0.dot(perp);
+    if (e0) {
+        while (e0->target != stop0) {
+            Edge* e = e0->reverse->prev;
+            if (e->target->point.dot(normal) < dist) {
+                break;
+            }
+            btAssert(e->target->point.dot(normal) == dist);
+            if (e->copy == mergeStamp) {
+                break;
+            }
+            int64_t dot = e->target->point.dot(perp);
+            if (dot <= maxDot0) {
+                break;
+            }
+            maxDot0 = dot;
+            e0 = e;
+            et0 = e->target->point;
+        }
+    }
+
+    int64_t maxDot1 = et1.dot(perp);
+    if (e1) {
+        while (e1->target != stop1) {
+            Edge* e = e1->reverse->next;
+            if (e->target->point.dot(normal) < dist) {
+                break;
+            }
+            btAssert(e->target->point.dot(normal) == dist);
+            if (e->copy == mergeStamp) {
+                break;
+            }
+            int64_t dot = e->target->point.dot(perp);
+            if (dot <= maxDot1) {
+                break;
+            }
+            maxDot1 = dot;
+            e1 = e;
+            et1 = e->target->point;
+        }
+    }
+
+#ifdef DEBUG_CONVEX_HULL
+    printf("   Starting at %d %d\n", et0.index, et1.index);
+#endif
+
+    int64_t dx = maxDot1 - maxDot0;
+    if (dx > 0) {
+        while (true) {
+            int64_t dy = (et1 - et0).dot(s);
+
+            if (e0 && (e0->target != stop0)) {
+                Edge* f0 = e0->next->reverse;
+                if (f0->copy > mergeStamp) {
+                    int64_t dx0 = (f0->target->point - et0).dot(perp);
+                    int64_t dy0 = (f0->target->point - et0).dot(s);
+                    if ((dx0 == 0) ? (dy0 < 0) : ((dx0 < 0) && (Rational64(dy0, dx0).compare(Rational64(dy, dx)) >= 0))) {
+                        et0 = f0->target->point;
+                        dx = (et1 - et0).dot(perp);
+                        e0 = (e0 == start0) ? NULL : f0;
+                        continue;
+                    }
+                }
+            }
+
+            if (e1 && (e1->target != stop1)) {
+                Edge* f1 = e1->reverse->next;
+                if (f1->copy > mergeStamp) {
+                    Point32 d1 = f1->target->point - et1;
+                    if (d1.dot(normal) == 0) {
+                        int64_t dx1 = d1.dot(perp);
+                        int64_t dy1 = d1.dot(s);
+                        int64_t dxn = (f1->target->point - et0).dot(perp);
+                        if ((dxn > 0) && ((dx1 == 0) ? (dy1 < 0) : ((dx1 < 0) && (Rational64(dy1, dx1).compare(Rational64(dy, dx)) > 0)))) {
+                            e1 = f1;
+                            et1 = e1->target->point;
+                            dx = dxn;
+                            continue;
+                        }
+                    }
+                    else {
+                        btAssert((e1 == start1) && (d1.dot(normal) < 0));
+                    }
+                }
+            }
+
+            break;
+        }
+    }
+    else if (dx < 0) {
+        while (true) {
+            int64_t dy = (et1 - et0).dot(s);
+
+            if (e1 && (e1->target != stop1)) {
+                Edge* f1 = e1->prev->reverse;
+                if (f1->copy > mergeStamp) {
+                    int64_t dx1 = (f1->target->point - et1).dot(perp);
+                    int64_t dy1 = (f1->target->point - et1).dot(s);
+                    if ((dx1 == 0) ? (dy1 > 0) : ((dx1 < 0) && (Rational64(dy1, dx1).compare(Rational64(dy, dx)) <= 0))) {
+                        et1 = f1->target->point;
+                        dx = (et1 - et0).dot(perp);
+                        e1 = (e1 == start1) ? NULL : f1;
+                        continue;
+                    }
+                }
+            }
+
+            if (e0 && (e0->target != stop0)) {
+                Edge* f0 = e0->reverse->prev;
+                if (f0->copy > mergeStamp) {
+                    Point32 d0 = f0->target->point - et0;
+                    if (d0.dot(normal) == 0) {
+                        int64_t dx0 = d0.dot(perp);
+                        int64_t dy0 = d0.dot(s);
+                        int64_t dxn = (et1 - f0->target->point).dot(perp);
+                        if ((dxn < 0) && ((dx0 == 0) ? (dy0 > 0) : ((dx0 < 0) && (Rational64(dy0, dx0).compare(Rational64(dy, dx)) < 0)))) {
+                            e0 = f0;
+                            et0 = e0->target->point;
+                            dx = dxn;
+                            continue;
+                        }
+                    }
+                    else {
+                        btAssert((e0 == start0) && (d0.dot(normal) < 0));
+                    }
+                }
+            }
+
+            break;
+        }
+    }
+#ifdef DEBUG_CONVEX_HULL
+    printf("   Advanced edges to %d %d\n", et0.index, et1.index);
+#endif
+}
+
+void btConvexHullInternal::merge(IntermediateHull& h0, IntermediateHull& h1)
+{
+    if (!h1.maxXy) {
+        return;
+    }
+    if (!h0.maxXy) {
+        h0 = h1;
+        return;
+    }
+
+    mergeStamp--;
+
+    Vertex* c0 = NULL;
+    Edge* toPrev0 = NULL;
+    Edge* firstNew0 = NULL;
+    Edge* pendingHead0 = NULL;
+    Edge* pendingTail0 = NULL;
+    Vertex* c1 = NULL;
+    Edge* toPrev1 = NULL;
+    Edge* firstNew1 = NULL;
+    Edge* pendingHead1 = NULL;
+    Edge* pendingTail1 = NULL;
+    Point32 prevPoint;
+
+    if (mergeProjection(h0, h1, c0, c1)) {
+        Point32 s = *c1 - *c0;
+        Point64 normal = Point32(0, 0, -1).cross(s);
+        Point64 t = s.cross(normal);
+        btAssert(!t.isZero());
+
+        Edge* e = c0->edges;
+        Edge* start0 = NULL;
+        if (e) {
+            do {
+                int64_t dot = (*e->target - *c0).dot(normal);
+                btAssert(dot <= 0);
+                if ((dot == 0) && ((*e->target - *c0).dot(t) > 0)) {
+                    if (!start0 || (getOrientation(start0, e, s, Point32(0, 0, -1)) == CLOCKWISE)) {
+                        start0 = e;
+                    }
+                }
+                e = e->next;
+            } while (e != c0->edges);
+        }
+
+        e = c1->edges;
+        Edge* start1 = NULL;
+        if (e) {
+            do {
+                int64_t dot = (*e->target - *c1).dot(normal);
+                btAssert(dot <= 0);
+                if ((dot == 0) && ((*e->target - *c1).dot(t) > 0)) {
+                    if (!start1 || (getOrientation(start1, e, s, Point32(0, 0, -1)) == COUNTER_CLOCKWISE)) {
+                        start1 = e;
+                    }
+                }
+                e = e->next;
+            } while (e != c1->edges);
+        }
+
+        if (start0 || start1) {
+            findEdgeForCoplanarFaces(c0, c1, start0, start1, NULL, NULL);
+            if (start0) {
+                c0 = start0->target;
+            }
+            if (start1) {
+                c1 = start1->target;
+            }
+        }
+
+        prevPoint = c1->point;
+        prevPoint.z++;
+    }
+    else {
+        prevPoint = c1->point;
+        prevPoint.x++;
+    }
+
+    Vertex* first0 = c0;
+    Vertex* first1 = c1;
+    bool firstRun = true;
+
+    while (true) {
+        Point32 s = *c1 - *c0;
+        Point32 r = prevPoint - c0->point;
+        Point64 rxs = r.cross(s);
+        Point64 sxrxs = s.cross(rxs);
+
+#ifdef DEBUG_CONVEX_HULL
+        printf("\n  Checking %d %d\n", c0->point.index, c1->point.index);
+#endif
+        Rational64 minCot0(0, 0);
+        Edge* min0 = findMaxAngle(false, c0, s, rxs, sxrxs, minCot0);
+        Rational64 minCot1(0, 0);
+        Edge* min1 = findMaxAngle(true, c1, s, rxs, sxrxs, minCot1);
+        if (!min0 && !min1) {
+            Edge* e = newEdgePair(c0, c1);
+            e->link(e);
+            c0->edges = e;
+
+            e = e->reverse;
+            e->link(e);
+            c1->edges = e;
+            return;
+        }
+        else {
+            int32_t cmp = !min0 ? 1 : !min1 ? -1 : minCot0.compare(minCot1);
+#ifdef DEBUG_CONVEX_HULL
+            printf("    -> Result %d\n", cmp);
+#endif
+            if (firstRun || ((cmp >= 0) ? !minCot1.isNegativeInfinity() : !minCot0.isNegativeInfinity())) {
+                Edge* e = newEdgePair(c0, c1);
+                if (pendingTail0) {
+                    pendingTail0->prev = e;
+                }
+                else {
+                    pendingHead0 = e;
+                }
+                e->next = pendingTail0;
+                pendingTail0 = e;
+
+                e = e->reverse;
+                if (pendingTail1) {
+                    pendingTail1->next = e;
+                }
+                else {
+                    pendingHead1 = e;
+                }
+                e->prev = pendingTail1;
+                pendingTail1 = e;
+            }
+
+            Edge* e0 = min0;
+            Edge* e1 = min1;
+
+#ifdef DEBUG_CONVEX_HULL
+            printf("   Found min edges to %d %d\n", e0 ? e0->target->point.index : -1, e1 ? e1->target->point.index : -1);
+#endif
+
+            if (cmp == 0) {
+                findEdgeForCoplanarFaces(c0, c1, e0, e1, NULL, NULL);
+            }
+
+            if ((cmp >= 0) && e1) {
+                if (toPrev1) {
+                    for (Edge *e = toPrev1->next, *n = NULL; e != min1; e = n) {
+                        n = e->next;
+                        removeEdgePair(e);
+                    }
+                }
+
+                if (pendingTail1) {
+                    if (toPrev1) {
+                        toPrev1->link(pendingHead1);
+                    }
+                    else {
+                        min1->prev->link(pendingHead1);
+                        firstNew1 = pendingHead1;
+                    }
+                    pendingTail1->link(min1);
+                    pendingHead1 = NULL;
+                    pendingTail1 = NULL;
+                }
+                else if (!toPrev1) {
+                    firstNew1 = min1;
+                }
+
+                prevPoint = c1->point;
+                c1 = e1->target;
+                toPrev1 = e1->reverse;
+            }
+
+            if ((cmp <= 0) && e0) {
+                if (toPrev0) {
+                    for (Edge *e = toPrev0->prev, *n = NULL; e != min0; e = n) {
+                        n = e->prev;
+                        removeEdgePair(e);
+                    }
+                }
+
+                if (pendingTail0) {
+                    if (toPrev0) {
+                        pendingHead0->link(toPrev0);
+                    }
+                    else {
+                        pendingHead0->link(min0->next);
+                        firstNew0 = pendingHead0;
+                    }
+                    min0->link(pendingTail0);
+                    pendingHead0 = NULL;
+                    pendingTail0 = NULL;
+                }
+                else if (!toPrev0) {
+                    firstNew0 = min0;
+                }
+
+                prevPoint = c0->point;
+                c0 = e0->target;
+                toPrev0 = e0->reverse;
+            }
+        }
+
+        if ((c0 == first0) && (c1 == first1)) {
+            if (toPrev0 == NULL) {
+                pendingHead0->link(pendingTail0);
+                c0->edges = pendingTail0;
+            }
+            else {
+                for (Edge *e = toPrev0->prev, *n = NULL; e != firstNew0; e = n) {
+                    n = e->prev;
+                    removeEdgePair(e);
+                }
+                if (pendingTail0) {
+                    pendingHead0->link(toPrev0);
+                    firstNew0->link(pendingTail0);
+                }
+            }
+
+            if (toPrev1 == NULL) {
+                pendingTail1->link(pendingHead1);
+                c1->edges = pendingTail1;
+            }
+            else {
+                for (Edge *e = toPrev1->next, *n = NULL; e != firstNew1; e = n) {
+                    n = e->next;
+                    removeEdgePair(e);
+                }
+                if (pendingTail1) {
+                    toPrev1->link(pendingHead1);
+                    pendingTail1->link(firstNew1);
+                }
+            }
+
+            return;
+        }
+
+        firstRun = false;
+    }
+}
+
+static bool pointCmp(const btConvexHullInternal::Point32& p, const btConvexHullInternal::Point32& q)
+{
+    return (p.y < q.y) || ((p.y == q.y) && ((p.x < q.x) || ((p.x == q.x) && (p.z < q.z))));
+}
+
+void btConvexHullInternal::compute(const void* coords, bool doubleCoords, int32_t stride, int32_t count)
+{
+    btVector3 min(btScalar(1e30), btScalar(1e30), btScalar(1e30)), max(btScalar(-1e30), btScalar(-1e30), btScalar(-1e30));
+    const char* ptr = (const char*)coords;
+    if (doubleCoords) {
+        for (int32_t i = 0; i < count; i++) {
+            const double* v = (const double*)ptr;
+            btVector3 p((btScalar)v[0], (btScalar)v[1], (btScalar)v[2]);
+            ptr += stride;
+            min.setMin(p);
+            max.setMax(p);
+        }
+    }
+    else {
+        for (int32_t i = 0; i < count; i++) {
+            const float* v = (const float*)ptr;
+            btVector3 p(v[0], v[1], v[2]);
+            ptr += stride;
+            min.setMin(p);
+            max.setMax(p);
+        }
+    }
+
+    btVector3 s = max - min;
+    maxAxis = s.maxAxis();
+    minAxis = s.minAxis();
+    if (minAxis == maxAxis) {
+        minAxis = (maxAxis + 1) % 3;
+    }
+    medAxis = 3 - maxAxis - minAxis;
+
+    s /= btScalar(10216);
+    if (((medAxis + 1) % 3) != maxAxis) {
+        s *= -1;
+    }
+    scaling = s;
+
+    if (s[0] != 0) {
+        s[0] = btScalar(1) / s[0];
+    }
+    if (s[1] != 0) {
+        s[1] = btScalar(1) / s[1];
+    }
+    if (s[2] != 0) {
+        s[2] = btScalar(1) / s[2];
+    }
+
+    center = (min + max) * btScalar(0.5);
+
+    btAlignedObjectArray<Point32> points;
+    points.resize(count);
+    ptr = (const char*)coords;
+    if (doubleCoords) {
+        for (int32_t i = 0; i < count; i++) {
+            const double* v = (const double*)ptr;
+            btVector3 p((btScalar)v[0], (btScalar)v[1], (btScalar)v[2]);
+            ptr += stride;
+            p = (p - center) * s;
+            points[i].x = (int32_t)p[medAxis];
+            points[i].y = (int32_t)p[maxAxis];
+            points[i].z = (int32_t)p[minAxis];
+            points[i].index = i;
+        }
+    }
+    else {
+        for (int32_t i = 0; i < count; i++) {
+            const float* v = (const float*)ptr;
+            btVector3 p(v[0], v[1], v[2]);
+            ptr += stride;
+            p = (p - center) * s;
+            points[i].x = (int32_t)p[medAxis];
+            points[i].y = (int32_t)p[maxAxis];
+            points[i].z = (int32_t)p[minAxis];
+            points[i].index = i;
+        }
+    }
+    points.quickSort(pointCmp);
+
+    vertexPool.reset();
+    vertexPool.setArraySize(count);
+    originalVertices.resize(count);
+    for (int32_t i = 0; i < count; i++) {
+        Vertex* v = vertexPool.newObject();
+        v->edges = NULL;
+        v->point = points[i];
+        v->copy = -1;
+        originalVertices[i] = v;
+    }
+
+    points.clear();
+
+    edgePool.reset();
+    edgePool.setArraySize(6 * count);
+
+    usedEdgePairs = 0;
+    maxUsedEdgePairs = 0;
+
+    mergeStamp = -3;
+
+    IntermediateHull hull;
+    computeInternal(0, count, hull);
+    vertexList = hull.minXy;
+#ifdef DEBUG_CONVEX_HULL
+    printf("max. edges %d (3v = %d)", maxUsedEdgePairs, 3 * count);
+#endif
+}
+
+btVector3 btConvexHullInternal::toBtVector(const Point32& v)
+{
+    btVector3 p;
+    p[medAxis] = btScalar(v.x);
+    p[maxAxis] = btScalar(v.y);
+    p[minAxis] = btScalar(v.z);
+    return p * scaling;
+}
+
+btVector3 btConvexHullInternal::getBtNormal(Face* face)
+{
+    return toBtVector(face->dir0).cross(toBtVector(face->dir1)).normalized();
+}
+
+btVector3 btConvexHullInternal::getCoordinates(const Vertex* v)
+{
+    btVector3 p;
+    p[medAxis] = v->xvalue();
+    p[maxAxis] = v->yvalue();
+    p[minAxis] = v->zvalue();
+    return p * scaling + center;
+}
+
+btScalar btConvexHullInternal::shrink(btScalar amount, btScalar clampAmount)
+{
+    if (!vertexList) {
+        return 0;
+    }
+    int32_t stamp = --mergeStamp;
+    btAlignedObjectArray<Vertex*> stack;
+    vertexList->copy = stamp;
+    stack.push_back(vertexList);
+    btAlignedObjectArray<Face*> faces;
+
+    Point32 ref = vertexList->point;
+    Int128 hullCenterX(0, 0);
+    Int128 hullCenterY(0, 0);
+    Int128 hullCenterZ(0, 0);
+    Int128 volume(0, 0);
+
+    while (stack.size() > 0) {
+        Vertex* v = stack[stack.size() - 1];
+        stack.pop_back();
+        Edge* e = v->edges;
+        if (e) {
+            do {
+                if (e->target->copy != stamp) {
+                    e->target->copy = stamp;
+                    stack.push_back(e->target);
+                }
+                if (e->copy != stamp) {
+                    Face* face = facePool.newObject();
+                    face->init(e->target, e->reverse->prev->target, v);
+                    faces.push_back(face);
+                    Edge* f = e;
+
+                    Vertex* a = NULL;
+                    Vertex* b = NULL;
+                    do {
+                        if (a && b) {
+                            int64_t vol = (v->point - ref).dot((a->point - ref).cross(b->point - ref));
+                            btAssert(vol >= 0);
+                            Point32 c = v->point + a->point + b->point + ref;
+                            hullCenterX += vol * c.x;
+                            hullCenterY += vol * c.y;
+                            hullCenterZ += vol * c.z;
+                            volume += vol;
+                        }
+
+                        btAssert(f->copy != stamp);
+                        f->copy = stamp;
+                        f->face = face;
+
+                        a = b;
+                        b = f->target;
+
+                        f = f->reverse->prev;
+                    } while (f != e);
+                }
+                e = e->next;
+            } while (e != v->edges);
+        }
+    }
+
+    if (volume.getSign() <= 0) {
+        return 0;
+    }
+
+    btVector3 hullCenter;
+    hullCenter[medAxis] = hullCenterX.toScalar();
+    hullCenter[maxAxis] = hullCenterY.toScalar();
+    hullCenter[minAxis] = hullCenterZ.toScalar();
+    hullCenter /= 4 * volume.toScalar();
+    hullCenter *= scaling;
+
+    int32_t faceCount = faces.size();
+
+    if (clampAmount > 0) {
+        btScalar minDist = SIMD_INFINITY;
+        for (int32_t i = 0; i < faceCount; i++) {
+            btVector3 normal = getBtNormal(faces[i]);
+            btScalar dist = normal.dot(toBtVector(faces[i]->origin) - hullCenter);
+            if (dist < minDist) {
+                minDist = dist;
+            }
+        }
+
+        if (minDist <= 0) {
+            return 0;
+        }
+
+        amount = btMin(amount, minDist * clampAmount);
+    }
+
+    uint32_t seed = 243703;
+    for (int32_t i = 0; i < faceCount; i++, seed = 1664525 * seed + 1013904223) {
+        btSwap(faces[i], faces[seed % faceCount]);
+    }
+
+    for (int32_t i = 0; i < faceCount; i++) {
+        if (!shiftFace(faces[i], amount, stack)) {
+            return -amount;
+        }
+    }
+
+    return amount;
+}
+
+bool btConvexHullInternal::shiftFace(Face* face, btScalar amount, btAlignedObjectArray<Vertex*> stack)
+{
+    btVector3 origShift = getBtNormal(face) * -amount;
+    if (scaling[0] != 0) {
+        origShift[0] /= scaling[0];
+    }
+    if (scaling[1] != 0) {
+        origShift[1] /= scaling[1];
+    }
+    if (scaling[2] != 0) {
+        origShift[2] /= scaling[2];
+    }
+    Point32 shift((int32_t)origShift[medAxis], (int32_t)origShift[maxAxis], (int32_t)origShift[minAxis]);
+    if (shift.isZero()) {
+        return true;
+    }
+    Point64 normal = face->getNormal();
+#ifdef DEBUG_CONVEX_HULL
+    printf("\nShrinking face (%d %d %d) (%d %d %d) (%d %d %d) by (%d %d %d)\n",
+        face->origin.x, face->origin.y, face->origin.z, face->dir0.x, face->dir0.y, face->dir0.z, face->dir1.x, face->dir1.y, face->dir1.z, shift.x, shift.y, shift.z);
+#endif
+    int64_t origDot = face->origin.dot(normal);
+    Point32 shiftedOrigin = face->origin + shift;
+    int64_t shiftedDot = shiftedOrigin.dot(normal);
+    btAssert(shiftedDot <= origDot);
+    if (shiftedDot >= origDot) {
+        return false;
+    }
+
+    Edge* intersection = NULL;
+
+    Edge* startEdge = face->nearbyVertex->edges;
+#ifdef DEBUG_CONVEX_HULL
+    printf("Start edge is ");
+    startEdge->print();
+    printf(", normal is (%lld %lld %lld), shifted dot is %lld\n", normal.x, normal.y, normal.z, shiftedDot);
+#endif
+    Rational128 optDot = face->nearbyVertex->dot(normal);
+    int32_t cmp = optDot.compare(shiftedDot);
+#ifdef SHOW_ITERATIONS
+    int32_t n = 0;
+#endif
+    if (cmp >= 0) {
+        Edge* e = startEdge;
+        do {
+#ifdef SHOW_ITERATIONS
+            n++;
+#endif
+            Rational128 dot = e->target->dot(normal);
+            btAssert(dot.compare(origDot) <= 0);
+#ifdef DEBUG_CONVEX_HULL
+            printf("Moving downwards, edge is ");
+            e->print();
+            printf(", dot is %f (%f %lld)\n", (float)dot.toScalar(), (float)optDot.toScalar(), shiftedDot);
+#endif
+            if (dot.compare(optDot) < 0) {
+                int32_t c = dot.compare(shiftedDot);
+                optDot = dot;
+                e = e->reverse;
+                startEdge = e;
+                if (c < 0) {
+                    intersection = e;
+                    break;
+                }
+                cmp = c;
+            }
+            e = e->prev;
+        } while (e != startEdge);
+
+        if (!intersection) {
+            return false;
+        }
+    }
+    else {
+        Edge* e = startEdge;
+        do {
+#ifdef SHOW_ITERATIONS
+            n++;
+#endif
+            Rational128 dot = e->target->dot(normal);
+            btAssert(dot.compare(origDot) <= 0);
+#ifdef DEBUG_CONVEX_HULL
+            printf("Moving upwards, edge is ");
+            e->print();
+            printf(", dot is %f (%f %lld)\n", (float)dot.toScalar(), (float)optDot.toScalar(), shiftedDot);
+#endif
+            if (dot.compare(optDot) > 0) {
+                cmp = dot.compare(shiftedDot);
+                if (cmp >= 0) {
+                    intersection = e;
+                    break;
+                }
+                optDot = dot;
+                e = e->reverse;
+                startEdge = e;
+            }
+            e = e->prev;
+        } while (e != startEdge);
+
+        if (!intersection) {
+            return true;
+        }
+    }
+
+#ifdef SHOW_ITERATIONS
+    printf("Needed %d iterations to find initial intersection\n", n);
+#endif
+
+    if (cmp == 0) {
+        Edge* e = intersection->reverse->next;
+#ifdef SHOW_ITERATIONS
+        n = 0;
+#endif
+        while (e->target->dot(normal).compare(shiftedDot) <= 0) {
+#ifdef SHOW_ITERATIONS
+            n++;
+#endif
+            e = e->next;
+            if (e == intersection->reverse) {
+                return true;
+            }
+#ifdef DEBUG_CONVEX_HULL
+            printf("Checking for outwards edge, current edge is ");
+            e->print();
+            printf("\n");
+#endif
+        }
+#ifdef SHOW_ITERATIONS
+        printf("Needed %d iterations to check for complete containment\n", n);
+#endif
+    }
+
+    Edge* firstIntersection = NULL;
+    Edge* faceEdge = NULL;
+    Edge* firstFaceEdge = NULL;
+
+#ifdef SHOW_ITERATIONS
+    int32_t m = 0;
+#endif
+    while (true) {
+#ifdef SHOW_ITERATIONS
+        m++;
+#endif
+#ifdef DEBUG_CONVEX_HULL
+        printf("Intersecting edge is ");
+        intersection->print();
+        printf("\n");
+#endif
+        if (cmp == 0) {
+            Edge* e = intersection->reverse->next;
+            startEdge = e;
+#ifdef SHOW_ITERATIONS
+            n = 0;
+#endif
+            while (true) {
+#ifdef SHOW_ITERATIONS
+                n++;
+#endif
+                if (e->target->dot(normal).compare(shiftedDot) >= 0) {
+                    break;
+                }
+                intersection = e->reverse;
+                e = e->next;
+                if (e == startEdge) {
+                    return true;
+                }
+            }
+#ifdef SHOW_ITERATIONS
+            printf("Needed %d iterations to advance intersection\n", n);
+#endif
+        }
+
+#ifdef DEBUG_CONVEX_HULL
+        printf("Advanced intersecting edge to ");
+        intersection->print();
+        printf(", cmp = %d\n", cmp);
+#endif
+
+        if (!firstIntersection) {
+            firstIntersection = intersection;
+        }
+        else if (intersection == firstIntersection) {
+            break;
+        }
+
+        int32_t prevCmp = cmp;
+        Edge* prevIntersection = intersection;
+        Edge* prevFaceEdge = faceEdge;
+
+        Edge* e = intersection->reverse;
+#ifdef SHOW_ITERATIONS
+        n = 0;
+#endif
+        while (true) {
+#ifdef SHOW_ITERATIONS
+            n++;
+#endif
+            e = e->reverse->prev;
+            btAssert(e != intersection->reverse);
+            cmp = e->target->dot(normal).compare(shiftedDot);
+#ifdef DEBUG_CONVEX_HULL
+            printf("Testing edge ");
+            e->print();
+            printf(" -> cmp = %d\n", cmp);
+#endif
+            if (cmp >= 0) {
+                intersection = e;
+                break;
+            }
+        }
+#ifdef SHOW_ITERATIONS
+        printf("Needed %d iterations to find other intersection of face\n", n);
+#endif
+
+        if (cmp > 0) {
+            Vertex* removed = intersection->target;
+            e = intersection->reverse;
+            if (e->prev == e) {
+                removed->edges = NULL;
+            }
+            else {
+                removed->edges = e->prev;
+                e->prev->link(e->next);
+                e->link(e);
+            }
+#ifdef DEBUG_CONVEX_HULL
+            printf("1: Removed part contains (%d %d %d)\n", removed->point.x, removed->point.y, removed->point.z);
+#endif
+
+            Point64 n0 = intersection->face->getNormal();
+            Point64 n1 = intersection->reverse->face->getNormal();
+            int64_t m00 = face->dir0.dot(n0);
+            int64_t m01 = face->dir1.dot(n0);
+            int64_t m10 = face->dir0.dot(n1);
+            int64_t m11 = face->dir1.dot(n1);
+            int64_t r0 = (intersection->face->origin - shiftedOrigin).dot(n0);
+            int64_t r1 = (intersection->reverse->face->origin - shiftedOrigin).dot(n1);
+            Int128 det = Int128::mul(m00, m11) - Int128::mul(m01, m10);
+            btAssert(det.getSign() != 0);
+            Vertex* v = vertexPool.newObject();
+            v->point.index = -1;
+            v->copy = -1;
+            v->point128 = PointR128(Int128::mul(face->dir0.x * r0, m11) - Int128::mul(face->dir0.x * r1, m01)
+                    + Int128::mul(face->dir1.x * r1, m00) - Int128::mul(face->dir1.x * r0, m10) + det * shiftedOrigin.x,
+                Int128::mul(face->dir0.y * r0, m11) - Int128::mul(face->dir0.y * r1, m01)
+                    + Int128::mul(face->dir1.y * r1, m00) - Int128::mul(face->dir1.y * r0, m10) + det * shiftedOrigin.y,
+                Int128::mul(face->dir0.z * r0, m11) - Int128::mul(face->dir0.z * r1, m01)
+                    + Int128::mul(face->dir1.z * r1, m00) - Int128::mul(face->dir1.z * r0, m10) + det * shiftedOrigin.z,
+                det);
+            v->point.x = (int32_t)v->point128.xvalue();
+            v->point.y = (int32_t)v->point128.yvalue();
+            v->point.z = (int32_t)v->point128.zvalue();
+            intersection->target = v;
+            v->edges = e;
+
+            stack.push_back(v);
+            stack.push_back(removed);
+            stack.push_back(NULL);
+        }
+
+        if (cmp || prevCmp || (prevIntersection->reverse->next->target != intersection->target)) {
+            faceEdge = newEdgePair(prevIntersection->target, intersection->target);
+            if (prevCmp == 0) {
+                faceEdge->link(prevIntersection->reverse->next);
+            }
+            if ((prevCmp == 0) || prevFaceEdge) {
+                prevIntersection->reverse->link(faceEdge);
+            }
+            if (cmp == 0) {
+                intersection->reverse->prev->link(faceEdge->reverse);
+            }
+            faceEdge->reverse->link(intersection->reverse);
+        }
+        else {
+            faceEdge = prevIntersection->reverse->next;
+        }
+
+        if (prevFaceEdge) {
+            if (prevCmp > 0) {
+                faceEdge->link(prevFaceEdge->reverse);
+            }
+            else if (faceEdge != prevFaceEdge->reverse) {
+                stack.push_back(prevFaceEdge->target);
+                while (faceEdge->next != prevFaceEdge->reverse) {
+                    Vertex* removed = faceEdge->next->target;
+                    removeEdgePair(faceEdge->next);
+                    stack.push_back(removed);
+#ifdef DEBUG_CONVEX_HULL
+                    printf("2: Removed part contains (%d %d %d)\n", removed->point.x, removed->point.y, removed->point.z);
+#endif
+                }
+                stack.push_back(NULL);
+            }
+        }
+        faceEdge->face = face;
+        faceEdge->reverse->face = intersection->face;
+
+        if (!firstFaceEdge) {
+            firstFaceEdge = faceEdge;
+        }
+    }
+#ifdef SHOW_ITERATIONS
+    printf("Needed %d iterations to process all intersections\n", m);
+#endif
+
+    if (cmp > 0) {
+        firstFaceEdge->reverse->target = faceEdge->target;
+        firstIntersection->reverse->link(firstFaceEdge);
+        firstFaceEdge->link(faceEdge->reverse);
+    }
+    else if (firstFaceEdge != faceEdge->reverse) {
+        stack.push_back(faceEdge->target);
+        while (firstFaceEdge->next != faceEdge->reverse) {
+            Vertex* removed = firstFaceEdge->next->target;
+            removeEdgePair(firstFaceEdge->next);
+            stack.push_back(removed);
+#ifdef DEBUG_CONVEX_HULL
+            printf("3: Removed part contains (%d %d %d)\n", removed->point.x, removed->point.y, removed->point.z);
+#endif
+        }
+        stack.push_back(NULL);
+    }
+
+    btAssert(stack.size() > 0);
+    vertexList = stack[0];
+
+#ifdef DEBUG_CONVEX_HULL
+    printf("Removing part\n");
+#endif
+#ifdef SHOW_ITERATIONS
+    n = 0;
+#endif
+    int32_t pos = 0;
+    while (pos < stack.size()) {
+        int32_t end = stack.size();
+        while (pos < end) {
+            Vertex* kept = stack[pos++];
+#ifdef DEBUG_CONVEX_HULL
+            kept->print();
+#endif
+            bool deeper = false;
+            Vertex* removed;
+            while ((removed = stack[pos++]) != NULL) {
+#ifdef SHOW_ITERATIONS
+                n++;
+#endif
+                kept->receiveNearbyFaces(removed);
+                while (removed->edges) {
+                    if (!deeper) {
+                        deeper = true;
+                        stack.push_back(kept);
+                    }
+                    stack.push_back(removed->edges->target);
+                    removeEdgePair(removed->edges);
+                }
+            }
+            if (deeper) {
+                stack.push_back(NULL);
+            }
+        }
+    }
+#ifdef SHOW_ITERATIONS
+    printf("Needed %d iterations to remove part\n", n);
+#endif
+
+    stack.resize(0);
+    face->origin = shiftedOrigin;
+
+    return true;
+}
+
+static int32_t getVertexCopy(btConvexHullInternal::Vertex* vertex, btAlignedObjectArray<btConvexHullInternal::Vertex*>& vertices)
+{
+    int32_t index = vertex->copy;
+    if (index < 0) {
+        index = vertices.size();
+        vertex->copy = index;
+        vertices.push_back(vertex);
+#ifdef DEBUG_CONVEX_HULL
+        printf("Vertex %d gets index *%d\n", vertex->point.index, index);
+#endif
+    }
+    return index;
+}
+
+btScalar btConvexHullComputer::compute(const void* coords, bool doubleCoords, int32_t stride, int32_t count, btScalar shrink, btScalar shrinkClamp)
+{
+    if (count <= 0) {
+        vertices.clear();
+        edges.clear();
+        faces.clear();
+        return 0;
+    }
+
+    btConvexHullInternal hull;
+    hull.compute(coords, doubleCoords, stride, count);
+
+    btScalar shift = 0;
+    if ((shrink > 0) && ((shift = hull.shrink(shrink, shrinkClamp)) < 0)) {
+        vertices.clear();
+        edges.clear();
+        faces.clear();
+        return shift;
+    }
+
+    vertices.resize(0);
+    edges.resize(0);
+    faces.resize(0);
+
+    btAlignedObjectArray<btConvexHullInternal::Vertex*> oldVertices;
+    getVertexCopy(hull.vertexList, oldVertices);
+    int32_t copied = 0;
+    while (copied < oldVertices.size()) {
+        btConvexHullInternal::Vertex* v = oldVertices[copied];
+        vertices.push_back(hull.getCoordinates(v));
+        btConvexHullInternal::Edge* firstEdge = v->edges;
+        if (firstEdge) {
+            int32_t firstCopy = -1;
+            int32_t prevCopy = -1;
+            btConvexHullInternal::Edge* e = firstEdge;
+            do {
+                if (e->copy < 0) {
+                    int32_t s = edges.size();
+                    edges.push_back(Edge());
+                    edges.push_back(Edge());
+                    Edge* c = &edges[s];
+                    Edge* r = &edges[s + 1];
+                    e->copy = s;
+                    e->reverse->copy = s + 1;
+                    c->reverse = 1;
+                    r->reverse = -1;
+                    c->targetVertex = getVertexCopy(e->target, oldVertices);
+                    r->targetVertex = copied;
+#ifdef DEBUG_CONVEX_HULL
+                    printf("      CREATE: Vertex *%d has edge to *%d\n", copied, c->getTargetVertex());
+#endif
+                }
+                if (prevCopy >= 0) {
+                    edges[e->copy].next = prevCopy - e->copy;
+                }
+                else {
+                    firstCopy = e->copy;
+                }
+                prevCopy = e->copy;
+                e = e->next;
+            } while (e != firstEdge);
+            edges[firstCopy].next = prevCopy - firstCopy;
+        }
+        copied++;
+    }
+
+    for (int32_t i = 0; i < copied; i++) {
+        btConvexHullInternal::Vertex* v = oldVertices[i];
+        btConvexHullInternal::Edge* firstEdge = v->edges;
+        if (firstEdge) {
+            btConvexHullInternal::Edge* e = firstEdge;
+            do {
+                if (e->copy >= 0) {
+#ifdef DEBUG_CONVEX_HULL
+                    printf("Vertex *%d has edge to *%d\n", i, edges[e->copy].getTargetVertex());
+#endif
+                    faces.push_back(e->copy);
+                    btConvexHullInternal::Edge* f = e;
+                    do {
+#ifdef DEBUG_CONVEX_HULL
+                        printf("   Face *%d\n", edges[f->copy].getTargetVertex());
+#endif
+                        f->copy = -1;
+                        f = f->reverse->prev;
+                    } while (f != e);
+                }
+                e = e->next;
+            } while (e != firstEdge);
+        }
+    }
+
+    return shift;
+}
+
+// -- GODOT start --
+}; // namespace VHACD
+// -- GODOT end --
diff --git a/thirdparty/vhacd/src/vhacdICHull.cpp b/thirdparty/vhacd/src/vhacdICHull.cpp
new file mode 100644
index 0000000000..989587c124
--- /dev/null
+++ b/thirdparty/vhacd/src/vhacdICHull.cpp
@@ -0,0 +1,731 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "vhacdICHull.h"
+#include <limits>
+
+#ifdef _MSC_VER
+#pragma warning(disable:4456 4706)
+#endif
+
+
+namespace VHACD {
+const double ICHull::sc_eps = 1.0e-15;
+const int32_t ICHull::sc_dummyIndex = std::numeric_limits<int32_t>::max();
+ICHull::ICHull()
+{
+    m_isFlat = false;
+}
+bool ICHull::AddPoints(const Vec3<double>* points, size_t nPoints)
+{
+    if (!points) {
+        return false;
+    }
+    CircularListElement<TMMVertex>* vertex = NULL;
+    for (size_t i = 0; i < nPoints; i++) {
+        vertex = m_mesh.AddVertex();
+        vertex->GetData().m_pos.X() = points[i].X();
+        vertex->GetData().m_pos.Y() = points[i].Y();
+        vertex->GetData().m_pos.Z() = points[i].Z();
+        vertex->GetData().m_name = static_cast<int32_t>(i);
+    }
+    return true;
+}
+bool ICHull::AddPoint(const Vec3<double>& point, int32_t id)
+{
+    if (AddPoints(&point, 1)) {
+        m_mesh.m_vertices.GetData().m_name = id;
+        return true;
+    }
+    return false;
+}
+
+ICHullError ICHull::Process()
+{
+    uint32_t addedPoints = 0;
+    if (m_mesh.GetNVertices() < 3) {
+        return ICHullErrorNotEnoughPoints;
+    }
+    if (m_mesh.GetNVertices() == 3) {
+        m_isFlat = true;
+        CircularListElement<TMMTriangle>* t1 = m_mesh.AddTriangle();
+        CircularListElement<TMMTriangle>* t2 = m_mesh.AddTriangle();
+        CircularListElement<TMMVertex>* v0 = m_mesh.m_vertices.GetHead();
+        CircularListElement<TMMVertex>* v1 = v0->GetNext();
+        CircularListElement<TMMVertex>* v2 = v1->GetNext();
+        // Compute the normal to the plane
+        Vec3<double> p0 = v0->GetData().m_pos;
+        Vec3<double> p1 = v1->GetData().m_pos;
+        Vec3<double> p2 = v2->GetData().m_pos;
+        m_normal = (p1 - p0) ^ (p2 - p0);
+        m_normal.Normalize();
+        t1->GetData().m_vertices[0] = v0;
+        t1->GetData().m_vertices[1] = v1;
+        t1->GetData().m_vertices[2] = v2;
+        t2->GetData().m_vertices[0] = v1;
+        t2->GetData().m_vertices[1] = v2;
+        t2->GetData().m_vertices[2] = v2;
+        return ICHullErrorOK;
+    }
+    if (m_isFlat) {
+        m_mesh.m_edges.Clear();
+        m_mesh.m_triangles.Clear();
+        m_isFlat = false;
+    }
+    if (m_mesh.GetNTriangles() == 0) // we have to create the first polyhedron
+    {
+        ICHullError res = DoubleTriangle();
+        if (res != ICHullErrorOK) {
+            return res;
+        }
+        else {
+            addedPoints += 3;
+        }
+    }
+    CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+    // go to the first added and not processed vertex
+    while (!(vertices.GetHead()->GetPrev()->GetData().m_tag)) {
+        vertices.Prev();
+    }
+    while (!vertices.GetData().m_tag) // not processed
+    {
+        vertices.GetData().m_tag = true;
+        if (ProcessPoint()) {
+            addedPoints++;
+            CleanUp(addedPoints);
+            vertices.Next();
+            if (!GetMesh().CheckConsistancy()) {
+                size_t nV = m_mesh.GetNVertices();
+                CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+                for (size_t v = 0; v < nV; ++v) {
+                    if (vertices.GetData().m_name == sc_dummyIndex) {
+                        vertices.Delete();
+                        break;
+                    }
+                    vertices.Next();
+                }
+                return ICHullErrorInconsistent;
+            }
+        }
+    }
+    if (m_isFlat) {
+        SArray<CircularListElement<TMMTriangle>*> trianglesToDuplicate;
+        size_t nT = m_mesh.GetNTriangles();
+        for (size_t f = 0; f < nT; f++) {
+            TMMTriangle& currentTriangle = m_mesh.m_triangles.GetHead()->GetData();
+            if (currentTriangle.m_vertices[0]->GetData().m_name == sc_dummyIndex || currentTriangle.m_vertices[1]->GetData().m_name == sc_dummyIndex || currentTriangle.m_vertices[2]->GetData().m_name == sc_dummyIndex) {
+                m_trianglesToDelete.PushBack(m_mesh.m_triangles.GetHead());
+                for (int32_t k = 0; k < 3; k++) {
+                    for (int32_t h = 0; h < 2; h++) {
+                        if (currentTriangle.m_edges[k]->GetData().m_triangles[h] == m_mesh.m_triangles.GetHead()) {
+                            currentTriangle.m_edges[k]->GetData().m_triangles[h] = 0;
+                            break;
+                        }
+                    }
+                }
+            }
+            else {
+                trianglesToDuplicate.PushBack(m_mesh.m_triangles.GetHead());
+            }
+            m_mesh.m_triangles.Next();
+        }
+        size_t nE = m_mesh.GetNEdges();
+        for (size_t e = 0; e < nE; e++) {
+            TMMEdge& currentEdge = m_mesh.m_edges.GetHead()->GetData();
+            if (currentEdge.m_triangles[0] == 0 && currentEdge.m_triangles[1] == 0) {
+                m_edgesToDelete.PushBack(m_mesh.m_edges.GetHead());
+            }
+            m_mesh.m_edges.Next();
+        }
+        size_t nV = m_mesh.GetNVertices();
+        CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+        for (size_t v = 0; v < nV; ++v) {
+            if (vertices.GetData().m_name == sc_dummyIndex) {
+                vertices.Delete();
+            }
+            else {
+                vertices.GetData().m_tag = false;
+                vertices.Next();
+            }
+        }
+        CleanEdges();
+        CleanTriangles();
+        CircularListElement<TMMTriangle>* newTriangle;
+        for (size_t t = 0; t < trianglesToDuplicate.Size(); t++) {
+            newTriangle = m_mesh.AddTriangle();
+            newTriangle->GetData().m_vertices[0] = trianglesToDuplicate[t]->GetData().m_vertices[1];
+            newTriangle->GetData().m_vertices[1] = trianglesToDuplicate[t]->GetData().m_vertices[0];
+            newTriangle->GetData().m_vertices[2] = trianglesToDuplicate[t]->GetData().m_vertices[2];
+        }
+    }
+    return ICHullErrorOK;
+}
+ICHullError ICHull::Process(const uint32_t nPointsCH,
+    const double minVolume)
+{
+    uint32_t addedPoints = 0;
+    if (nPointsCH < 3 || m_mesh.GetNVertices() < 3) {
+        return ICHullErrorNotEnoughPoints;
+    }
+    if (m_mesh.GetNVertices() == 3) {
+        m_isFlat = true;
+        CircularListElement<TMMTriangle>* t1 = m_mesh.AddTriangle();
+        CircularListElement<TMMTriangle>* t2 = m_mesh.AddTriangle();
+        CircularListElement<TMMVertex>* v0 = m_mesh.m_vertices.GetHead();
+        CircularListElement<TMMVertex>* v1 = v0->GetNext();
+        CircularListElement<TMMVertex>* v2 = v1->GetNext();
+        // Compute the normal to the plane
+        Vec3<double> p0 = v0->GetData().m_pos;
+        Vec3<double> p1 = v1->GetData().m_pos;
+        Vec3<double> p2 = v2->GetData().m_pos;
+        m_normal = (p1 - p0) ^ (p2 - p0);
+        m_normal.Normalize();
+        t1->GetData().m_vertices[0] = v0;
+        t1->GetData().m_vertices[1] = v1;
+        t1->GetData().m_vertices[2] = v2;
+        t2->GetData().m_vertices[0] = v1;
+        t2->GetData().m_vertices[1] = v0;
+        t2->GetData().m_vertices[2] = v2;
+        return ICHullErrorOK;
+    }
+
+    if (m_isFlat) {
+        m_mesh.m_triangles.Clear();
+        m_mesh.m_edges.Clear();
+        m_isFlat = false;
+    }
+
+    if (m_mesh.GetNTriangles() == 0) // we have to create the first polyhedron
+    {
+        ICHullError res = DoubleTriangle();
+        if (res != ICHullErrorOK) {
+            return res;
+        }
+        else {
+            addedPoints += 3;
+        }
+    }
+    CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+    while (!vertices.GetData().m_tag && addedPoints < nPointsCH) // not processed
+    {
+        if (!FindMaxVolumePoint((addedPoints > 4) ? minVolume : 0.0)) {
+            break;
+        }
+        vertices.GetData().m_tag = true;
+        if (ProcessPoint()) {
+            addedPoints++;
+            CleanUp(addedPoints);
+            if (!GetMesh().CheckConsistancy()) {
+                size_t nV = m_mesh.GetNVertices();
+                CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+                for (size_t v = 0; v < nV; ++v) {
+                    if (vertices.GetData().m_name == sc_dummyIndex) {
+                        vertices.Delete();
+                        break;
+                    }
+                    vertices.Next();
+                }
+                return ICHullErrorInconsistent;
+            }
+            vertices.Next();
+        }
+    }
+    // delete remaining points
+    while (!vertices.GetData().m_tag) {
+        vertices.Delete();
+    }
+    if (m_isFlat) {
+        SArray<CircularListElement<TMMTriangle>*> trianglesToDuplicate;
+        size_t nT = m_mesh.GetNTriangles();
+        for (size_t f = 0; f < nT; f++) {
+            TMMTriangle& currentTriangle = m_mesh.m_triangles.GetHead()->GetData();
+            if (currentTriangle.m_vertices[0]->GetData().m_name == sc_dummyIndex || currentTriangle.m_vertices[1]->GetData().m_name == sc_dummyIndex || currentTriangle.m_vertices[2]->GetData().m_name == sc_dummyIndex) {
+                m_trianglesToDelete.PushBack(m_mesh.m_triangles.GetHead());
+                for (int32_t k = 0; k < 3; k++) {
+                    for (int32_t h = 0; h < 2; h++) {
+                        if (currentTriangle.m_edges[k]->GetData().m_triangles[h] == m_mesh.m_triangles.GetHead()) {
+                            currentTriangle.m_edges[k]->GetData().m_triangles[h] = 0;
+                            break;
+                        }
+                    }
+                }
+            }
+            else {
+                trianglesToDuplicate.PushBack(m_mesh.m_triangles.GetHead());
+            }
+            m_mesh.m_triangles.Next();
+        }
+        size_t nE = m_mesh.GetNEdges();
+        for (size_t e = 0; e < nE; e++) {
+            TMMEdge& currentEdge = m_mesh.m_edges.GetHead()->GetData();
+            if (currentEdge.m_triangles[0] == 0 && currentEdge.m_triangles[1] == 0) {
+                m_edgesToDelete.PushBack(m_mesh.m_edges.GetHead());
+            }
+            m_mesh.m_edges.Next();
+        }
+        size_t nV = m_mesh.GetNVertices();
+        CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+        for (size_t v = 0; v < nV; ++v) {
+            if (vertices.GetData().m_name == sc_dummyIndex) {
+                vertices.Delete();
+            }
+            else {
+                vertices.GetData().m_tag = false;
+                vertices.Next();
+            }
+        }
+        CleanEdges();
+        CleanTriangles();
+        CircularListElement<TMMTriangle>* newTriangle;
+        for (size_t t = 0; t < trianglesToDuplicate.Size(); t++) {
+            newTriangle = m_mesh.AddTriangle();
+            newTriangle->GetData().m_vertices[0] = trianglesToDuplicate[t]->GetData().m_vertices[1];
+            newTriangle->GetData().m_vertices[1] = trianglesToDuplicate[t]->GetData().m_vertices[0];
+            newTriangle->GetData().m_vertices[2] = trianglesToDuplicate[t]->GetData().m_vertices[2];
+        }
+    }
+    return ICHullErrorOK;
+}
+bool ICHull::FindMaxVolumePoint(const double minVolume)
+{
+    CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+    CircularListElement<TMMVertex>* vMaxVolume = 0;
+    CircularListElement<TMMVertex>* vHeadPrev = vertices.GetHead()->GetPrev();
+
+    double maxVolume = minVolume;
+    double volume = 0.0;
+    while (!vertices.GetData().m_tag) // not processed
+    {
+        if (ComputePointVolume(volume, false)) {
+            if (maxVolume < volume) {
+                maxVolume = volume;
+                vMaxVolume = vertices.GetHead();
+            }
+            vertices.Next();
+        }
+    }
+    CircularListElement<TMMVertex>* vHead = vHeadPrev->GetNext();
+    vertices.GetHead() = vHead;
+    if (!vMaxVolume) {
+        return false;
+    }
+    if (vMaxVolume != vHead) {
+        Vec3<double> pos = vHead->GetData().m_pos;
+        int32_t id = vHead->GetData().m_name;
+        vHead->GetData().m_pos = vMaxVolume->GetData().m_pos;
+        vHead->GetData().m_name = vMaxVolume->GetData().m_name;
+        vMaxVolume->GetData().m_pos = pos;
+        vHead->GetData().m_name = id;
+    }
+    return true;
+}
+ICHullError ICHull::DoubleTriangle()
+{
+    // find three non colinear points
+    m_isFlat = false;
+    CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+    CircularListElement<TMMVertex>* v0 = vertices.GetHead();
+    while (Colinear(v0->GetData().m_pos,
+        v0->GetNext()->GetData().m_pos,
+        v0->GetNext()->GetNext()->GetData().m_pos)) {
+        if ((v0 = v0->GetNext()) == vertices.GetHead()) {
+            return ICHullErrorCoplanarPoints;
+        }
+    }
+    CircularListElement<TMMVertex>* v1 = v0->GetNext();
+    CircularListElement<TMMVertex>* v2 = v1->GetNext();
+    // mark points as processed
+    v0->GetData().m_tag = v1->GetData().m_tag = v2->GetData().m_tag = true;
+
+    // create two triangles
+    CircularListElement<TMMTriangle>* f0 = MakeFace(v0, v1, v2, 0);
+    MakeFace(v2, v1, v0, f0);
+
+    // find a fourth non-coplanar point to form tetrahedron
+    CircularListElement<TMMVertex>* v3 = v2->GetNext();
+    vertices.GetHead() = v3;
+
+    double vol = ComputeVolume4(v0->GetData().m_pos, v1->GetData().m_pos, v2->GetData().m_pos, v3->GetData().m_pos);
+    while (fabs(vol) < sc_eps && !v3->GetNext()->GetData().m_tag) {
+        v3 = v3->GetNext();
+        vol = ComputeVolume4(v0->GetData().m_pos, v1->GetData().m_pos, v2->GetData().m_pos, v3->GetData().m_pos);
+    }
+    if (fabs(vol) < sc_eps) {
+        // compute the barycenter
+        Vec3<double> bary(0.0, 0.0, 0.0);
+        CircularListElement<TMMVertex>* vBary = v0;
+        do {
+            bary += vBary->GetData().m_pos;
+        } while ((vBary = vBary->GetNext()) != v0);
+        bary /= static_cast<double>(vertices.GetSize());
+
+        // Compute the normal to the plane
+        Vec3<double> p0 = v0->GetData().m_pos;
+        Vec3<double> p1 = v1->GetData().m_pos;
+        Vec3<double> p2 = v2->GetData().m_pos;
+        m_normal = (p1 - p0) ^ (p2 - p0);
+        m_normal.Normalize();
+        // add dummy vertex placed at (bary + normal)
+        vertices.GetHead() = v2;
+        Vec3<double> newPt = bary + m_normal;
+        AddPoint(newPt, sc_dummyIndex);
+        m_isFlat = true;
+        return ICHullErrorOK;
+    }
+    else if (v3 != vertices.GetHead()) {
+        TMMVertex temp;
+        temp.m_name = v3->GetData().m_name;
+        temp.m_pos = v3->GetData().m_pos;
+        v3->GetData().m_name = vertices.GetHead()->GetData().m_name;
+        v3->GetData().m_pos = vertices.GetHead()->GetData().m_pos;
+        vertices.GetHead()->GetData().m_name = temp.m_name;
+        vertices.GetHead()->GetData().m_pos = temp.m_pos;
+    }
+    return ICHullErrorOK;
+}
+CircularListElement<TMMTriangle>* ICHull::MakeFace(CircularListElement<TMMVertex>* v0,
+    CircularListElement<TMMVertex>* v1,
+    CircularListElement<TMMVertex>* v2,
+    CircularListElement<TMMTriangle>* fold)
+{
+    CircularListElement<TMMEdge>* e0;
+    CircularListElement<TMMEdge>* e1;
+    CircularListElement<TMMEdge>* e2;
+    int32_t index = 0;
+    if (!fold) // if first face to be created
+    {
+        e0 = m_mesh.AddEdge(); // create the three edges
+        e1 = m_mesh.AddEdge();
+        e2 = m_mesh.AddEdge();
+    }
+    else // otherwise re-use existing edges (in reverse order)
+    {
+        e0 = fold->GetData().m_edges[2];
+        e1 = fold->GetData().m_edges[1];
+        e2 = fold->GetData().m_edges[0];
+        index = 1;
+    }
+    e0->GetData().m_vertices[0] = v0;
+    e0->GetData().m_vertices[1] = v1;
+    e1->GetData().m_vertices[0] = v1;
+    e1->GetData().m_vertices[1] = v2;
+    e2->GetData().m_vertices[0] = v2;
+    e2->GetData().m_vertices[1] = v0;
+    // create the new face
+    CircularListElement<TMMTriangle>* f = m_mesh.AddTriangle();
+    f->GetData().m_edges[0] = e0;
+    f->GetData().m_edges[1] = e1;
+    f->GetData().m_edges[2] = e2;
+    f->GetData().m_vertices[0] = v0;
+    f->GetData().m_vertices[1] = v1;
+    f->GetData().m_vertices[2] = v2;
+    // link edges to face f
+    e0->GetData().m_triangles[index] = e1->GetData().m_triangles[index] = e2->GetData().m_triangles[index] = f;
+    return f;
+}
+CircularListElement<TMMTriangle>* ICHull::MakeConeFace(CircularListElement<TMMEdge>* e, CircularListElement<TMMVertex>* p)
+{
+    // create two new edges if they don't already exist
+    CircularListElement<TMMEdge>* newEdges[2];
+    for (int32_t i = 0; i < 2; ++i) {
+        if (!(newEdges[i] = e->GetData().m_vertices[i]->GetData().m_duplicate)) { // if the edge doesn't exits add it and mark the vertex as duplicated
+            newEdges[i] = m_mesh.AddEdge();
+            newEdges[i]->GetData().m_vertices[0] = e->GetData().m_vertices[i];
+            newEdges[i]->GetData().m_vertices[1] = p;
+            e->GetData().m_vertices[i]->GetData().m_duplicate = newEdges[i];
+        }
+    }
+    // make the new face
+    CircularListElement<TMMTriangle>* newFace = m_mesh.AddTriangle();
+    newFace->GetData().m_edges[0] = e;
+    newFace->GetData().m_edges[1] = newEdges[0];
+    newFace->GetData().m_edges[2] = newEdges[1];
+    MakeCCW(newFace, e, p);
+    for (int32_t i = 0; i < 2; ++i) {
+        for (int32_t j = 0; j < 2; ++j) {
+            if (!newEdges[i]->GetData().m_triangles[j]) {
+                newEdges[i]->GetData().m_triangles[j] = newFace;
+                break;
+            }
+        }
+    }
+    return newFace;
+}
+bool ICHull::ComputePointVolume(double& totalVolume, bool markVisibleFaces)
+{
+    // mark visible faces
+    CircularListElement<TMMTriangle>* fHead = m_mesh.GetTriangles().GetHead();
+    CircularListElement<TMMTriangle>* f = fHead;
+    CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+    CircularListElement<TMMVertex>* vertex0 = vertices.GetHead();
+    bool visible = false;
+    Vec3<double> pos0 = Vec3<double>(vertex0->GetData().m_pos.X(),
+        vertex0->GetData().m_pos.Y(),
+        vertex0->GetData().m_pos.Z());
+    double vol = 0.0;
+    totalVolume = 0.0;
+    Vec3<double> ver0, ver1, ver2;
+    do {
+        ver0.X() = f->GetData().m_vertices[0]->GetData().m_pos.X();
+        ver0.Y() = f->GetData().m_vertices[0]->GetData().m_pos.Y();
+        ver0.Z() = f->GetData().m_vertices[0]->GetData().m_pos.Z();
+        ver1.X() = f->GetData().m_vertices[1]->GetData().m_pos.X();
+        ver1.Y() = f->GetData().m_vertices[1]->GetData().m_pos.Y();
+        ver1.Z() = f->GetData().m_vertices[1]->GetData().m_pos.Z();
+        ver2.X() = f->GetData().m_vertices[2]->GetData().m_pos.X();
+        ver2.Y() = f->GetData().m_vertices[2]->GetData().m_pos.Y();
+        ver2.Z() = f->GetData().m_vertices[2]->GetData().m_pos.Z();
+        vol = ComputeVolume4(ver0, ver1, ver2, pos0);
+        if (vol < -sc_eps) {
+            vol = fabs(vol);
+            totalVolume += vol;
+            if (markVisibleFaces) {
+                f->GetData().m_visible = true;
+                m_trianglesToDelete.PushBack(f);
+            }
+            visible = true;
+        }
+        f = f->GetNext();
+    } while (f != fHead);
+
+    if (m_trianglesToDelete.Size() == m_mesh.m_triangles.GetSize()) {
+        for (size_t i = 0; i < m_trianglesToDelete.Size(); i++) {
+            m_trianglesToDelete[i]->GetData().m_visible = false;
+        }
+        visible = false;
+    }
+    // if no faces visible from p then p is inside the hull
+    if (!visible && markVisibleFaces) {
+        vertices.Delete();
+        m_trianglesToDelete.Resize(0);
+        return false;
+    }
+    return true;
+}
+bool ICHull::ProcessPoint()
+{
+    double totalVolume = 0.0;
+    if (!ComputePointVolume(totalVolume, true)) {
+        return false;
+    }
+    // Mark edges in interior of visible region for deletion.
+    // Create a new face based on each border edge
+    CircularListElement<TMMVertex>* v0 = m_mesh.GetVertices().GetHead();
+    CircularListElement<TMMEdge>* eHead = m_mesh.GetEdges().GetHead();
+    CircularListElement<TMMEdge>* e = eHead;
+    CircularListElement<TMMEdge>* tmp = 0;
+    int32_t nvisible = 0;
+    m_edgesToDelete.Resize(0);
+    m_edgesToUpdate.Resize(0);
+    do {
+        tmp = e->GetNext();
+        nvisible = 0;
+        for (int32_t k = 0; k < 2; k++) {
+            if (e->GetData().m_triangles[k]->GetData().m_visible) {
+                nvisible++;
+            }
+        }
+        if (nvisible == 2) {
+            m_edgesToDelete.PushBack(e);
+        }
+        else if (nvisible == 1) {
+            e->GetData().m_newFace = MakeConeFace(e, v0);
+            m_edgesToUpdate.PushBack(e);
+        }
+        e = tmp;
+    } while (e != eHead);
+    return true;
+}
+bool ICHull::MakeCCW(CircularListElement<TMMTriangle>* f,
+    CircularListElement<TMMEdge>* e,
+    CircularListElement<TMMVertex>* v)
+{
+    // the visible face adjacent to e
+    CircularListElement<TMMTriangle>* fv;
+    if (e->GetData().m_triangles[0]->GetData().m_visible) {
+        fv = e->GetData().m_triangles[0];
+    }
+    else {
+        fv = e->GetData().m_triangles[1];
+    }
+
+    //  set vertex[0] and vertex[1] to have the same orientation as the corresponding vertices of fv.
+    int32_t i; // index of e->m_vertices[0] in fv
+    CircularListElement<TMMVertex>* v0 = e->GetData().m_vertices[0];
+    CircularListElement<TMMVertex>* v1 = e->GetData().m_vertices[1];
+    for (i = 0; fv->GetData().m_vertices[i] != v0; i++)
+        ;
+
+    if (fv->GetData().m_vertices[(i + 1) % 3] != e->GetData().m_vertices[1]) {
+        f->GetData().m_vertices[0] = v1;
+        f->GetData().m_vertices[1] = v0;
+    }
+    else {
+        f->GetData().m_vertices[0] = v0;
+        f->GetData().m_vertices[1] = v1;
+        // swap edges
+        CircularListElement<TMMEdge>* tmp = f->GetData().m_edges[0];
+        f->GetData().m_edges[0] = f->GetData().m_edges[1];
+        f->GetData().m_edges[1] = tmp;
+    }
+    f->GetData().m_vertices[2] = v;
+    return true;
+}
+bool ICHull::CleanUp(uint32_t& addedPoints)
+{
+    bool r0 = CleanEdges();
+    bool r1 = CleanTriangles();
+    bool r2 = CleanVertices(addedPoints);
+    return r0 && r1 && r2;
+}
+bool ICHull::CleanEdges()
+{
+    // integrate the new faces into the data structure
+    CircularListElement<TMMEdge>* e;
+    const size_t ne_update = m_edgesToUpdate.Size();
+    for (size_t i = 0; i < ne_update; ++i) {
+        e = m_edgesToUpdate[i];
+        if (e->GetData().m_newFace) {
+            if (e->GetData().m_triangles[0]->GetData().m_visible) {
+                e->GetData().m_triangles[0] = e->GetData().m_newFace;
+            }
+            else {
+                e->GetData().m_triangles[1] = e->GetData().m_newFace;
+            }
+            e->GetData().m_newFace = 0;
+        }
+    }
+    // delete edges maked for deletion
+    CircularList<TMMEdge>& edges = m_mesh.GetEdges();
+    const size_t ne_delete = m_edgesToDelete.Size();
+    for (size_t i = 0; i < ne_delete; ++i) {
+        edges.Delete(m_edgesToDelete[i]);
+    }
+    m_edgesToDelete.Resize(0);
+    m_edgesToUpdate.Resize(0);
+    return true;
+}
+bool ICHull::CleanTriangles()
+{
+    CircularList<TMMTriangle>& triangles = m_mesh.GetTriangles();
+    const size_t nt_delete = m_trianglesToDelete.Size();
+    for (size_t i = 0; i < nt_delete; ++i) {
+        triangles.Delete(m_trianglesToDelete[i]);
+    }
+    m_trianglesToDelete.Resize(0);
+    return true;
+}
+bool ICHull::CleanVertices(uint32_t& addedPoints)
+{
+    // mark all vertices incident to some undeleted edge as on the hull
+    CircularList<TMMEdge>& edges = m_mesh.GetEdges();
+    CircularListElement<TMMEdge>* e = edges.GetHead();
+    size_t nE = edges.GetSize();
+    for (size_t i = 0; i < nE; i++) {
+        e->GetData().m_vertices[0]->GetData().m_onHull = true;
+        e->GetData().m_vertices[1]->GetData().m_onHull = true;
+        e = e->GetNext();
+    }
+    // delete all the vertices that have been processed but are not on the hull
+    CircularList<TMMVertex>& vertices = m_mesh.GetVertices();
+    CircularListElement<TMMVertex>* vHead = vertices.GetHead();
+    CircularListElement<TMMVertex>* v = vHead;
+    v = v->GetPrev();
+    do {
+        if (v->GetData().m_tag && !v->GetData().m_onHull) {
+            CircularListElement<TMMVertex>* tmp = v->GetPrev();
+            vertices.Delete(v);
+            v = tmp;
+            addedPoints--;
+        }
+        else {
+            v->GetData().m_duplicate = 0;
+            v->GetData().m_onHull = false;
+            v = v->GetPrev();
+        }
+    } while (v->GetData().m_tag && v != vHead);
+    return true;
+}
+void ICHull::Clear()
+{
+    m_mesh.Clear();
+    m_edgesToDelete.Resize(0);
+    m_edgesToUpdate.Resize(0);
+    m_trianglesToDelete.Resize(0);
+    m_isFlat = false;
+}
+const ICHull& ICHull::operator=(ICHull& rhs)
+{
+    if (&rhs != this) {
+        m_mesh.Copy(rhs.m_mesh);
+        m_edgesToDelete = rhs.m_edgesToDelete;
+        m_edgesToUpdate = rhs.m_edgesToUpdate;
+        m_trianglesToDelete = rhs.m_trianglesToDelete;
+        m_isFlat = rhs.m_isFlat;
+    }
+    return (*this);
+}
+bool ICHull::IsInside(const Vec3<double>& pt0, const double eps)
+{
+    const Vec3<double> pt(pt0.X(), pt0.Y(), pt0.Z());
+    if (m_isFlat) {
+        size_t nT = m_mesh.m_triangles.GetSize();
+        Vec3<double> ver0, ver1, ver2, a, b, c;
+        double u, v;
+        for (size_t t = 0; t < nT; t++) {
+            ver0.X() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[0]->GetData().m_pos.X();
+            ver0.Y() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[0]->GetData().m_pos.Y();
+            ver0.Z() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[0]->GetData().m_pos.Z();
+            ver1.X() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[1]->GetData().m_pos.X();
+            ver1.Y() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[1]->GetData().m_pos.Y();
+            ver1.Z() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[1]->GetData().m_pos.Z();
+            ver2.X() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[2]->GetData().m_pos.X();
+            ver2.Y() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[2]->GetData().m_pos.Y();
+            ver2.Z() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[2]->GetData().m_pos.Z();
+            a = ver1 - ver0;
+            b = ver2 - ver0;
+            c = pt - ver0;
+            u = c * a;
+            v = c * b;
+            if (u >= 0.0 && u <= 1.0 && v >= 0.0 && u + v <= 1.0) {
+                return true;
+            }
+            m_mesh.m_triangles.Next();
+        }
+        return false;
+    }
+    else {
+        size_t nT = m_mesh.m_triangles.GetSize();
+        Vec3<double> ver0, ver1, ver2;
+        double vol;
+        for (size_t t = 0; t < nT; t++) {
+            ver0.X() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[0]->GetData().m_pos.X();
+            ver0.Y() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[0]->GetData().m_pos.Y();
+            ver0.Z() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[0]->GetData().m_pos.Z();
+            ver1.X() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[1]->GetData().m_pos.X();
+            ver1.Y() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[1]->GetData().m_pos.Y();
+            ver1.Z() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[1]->GetData().m_pos.Z();
+            ver2.X() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[2]->GetData().m_pos.X();
+            ver2.Y() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[2]->GetData().m_pos.Y();
+            ver2.Z() = m_mesh.m_triangles.GetHead()->GetData().m_vertices[2]->GetData().m_pos.Z();
+            vol = ComputeVolume4(ver0, ver1, ver2, pt);
+            if (vol < eps) {
+                return false;
+            }
+            m_mesh.m_triangles.Next();
+        }
+        return true;
+    }
+}
+}
diff --git a/thirdparty/vhacd/src/vhacdManifoldMesh.cpp b/thirdparty/vhacd/src/vhacdManifoldMesh.cpp
new file mode 100644
index 0000000000..7aac9c0d17
--- /dev/null
+++ b/thirdparty/vhacd/src/vhacdManifoldMesh.cpp
@@ -0,0 +1,202 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "vhacdManifoldMesh.h"
+namespace VHACD {
+TMMVertex::TMMVertex(void)
+{
+    Initialize();
+}
+void TMMVertex::Initialize()
+{
+    m_name = 0;
+    m_id = 0;
+    m_duplicate = 0;
+    m_onHull = false;
+    m_tag = false;
+}
+
+TMMVertex::~TMMVertex(void)
+{
+}
+TMMEdge::TMMEdge(void)
+{
+    Initialize();
+}
+void TMMEdge::Initialize()
+{
+    m_id = 0;
+    m_triangles[0] = m_triangles[1] = m_newFace = 0;
+    m_vertices[0] = m_vertices[1] = 0;
+}
+TMMEdge::~TMMEdge(void)
+{
+}
+void TMMTriangle::Initialize()
+{
+    m_id = 0;
+    for (int32_t i = 0; i < 3; i++) {
+        m_edges[i] = 0;
+        m_vertices[0] = 0;
+    }
+    m_visible = false;
+}
+TMMTriangle::TMMTriangle(void)
+{
+    Initialize();
+}
+TMMTriangle::~TMMTriangle(void)
+{
+}
+TMMesh::TMMesh()
+{
+}
+TMMesh::~TMMesh(void)
+{
+}
+void TMMesh::GetIFS(Vec3<double>* const points, Vec3<int32_t>* const triangles)
+{
+    size_t nV = m_vertices.GetSize();
+    size_t nT = m_triangles.GetSize();
+
+    for (size_t v = 0; v < nV; v++) {
+        points[v] = m_vertices.GetData().m_pos;
+        m_vertices.GetData().m_id = v;
+        m_vertices.Next();
+    }
+    for (size_t f = 0; f < nT; f++) {
+        TMMTriangle& currentTriangle = m_triangles.GetData();
+        triangles[f].X() = static_cast<int32_t>(currentTriangle.m_vertices[0]->GetData().m_id);
+        triangles[f].Y() = static_cast<int32_t>(currentTriangle.m_vertices[1]->GetData().m_id);
+        triangles[f].Z() = static_cast<int32_t>(currentTriangle.m_vertices[2]->GetData().m_id);
+        m_triangles.Next();
+    }
+}
+void TMMesh::Clear()
+{
+    m_vertices.Clear();
+    m_edges.Clear();
+    m_triangles.Clear();
+}
+void TMMesh::Copy(TMMesh& mesh)
+{
+    Clear();
+    // updating the id's
+    size_t nV = mesh.m_vertices.GetSize();
+    size_t nE = mesh.m_edges.GetSize();
+    size_t nT = mesh.m_triangles.GetSize();
+    for (size_t v = 0; v < nV; v++) {
+        mesh.m_vertices.GetData().m_id = v;
+        mesh.m_vertices.Next();
+    }
+    for (size_t e = 0; e < nE; e++) {
+        mesh.m_edges.GetData().m_id = e;
+        mesh.m_edges.Next();
+    }
+    for (size_t f = 0; f < nT; f++) {
+        mesh.m_triangles.GetData().m_id = f;
+        mesh.m_triangles.Next();
+    }
+    // copying data
+    m_vertices = mesh.m_vertices;
+    m_edges = mesh.m_edges;
+    m_triangles = mesh.m_triangles;
+
+    // generate mapping
+    CircularListElement<TMMVertex>** vertexMap = new CircularListElement<TMMVertex>*[nV];
+    CircularListElement<TMMEdge>** edgeMap = new CircularListElement<TMMEdge>*[nE];
+    CircularListElement<TMMTriangle>** triangleMap = new CircularListElement<TMMTriangle>*[nT];
+    for (size_t v = 0; v < nV; v++) {
+        vertexMap[v] = m_vertices.GetHead();
+        m_vertices.Next();
+    }
+    for (size_t e = 0; e < nE; e++) {
+        edgeMap[e] = m_edges.GetHead();
+        m_edges.Next();
+    }
+    for (size_t f = 0; f < nT; f++) {
+        triangleMap[f] = m_triangles.GetHead();
+        m_triangles.Next();
+    }
+
+    // updating pointers
+    for (size_t v = 0; v < nV; v++) {
+        if (vertexMap[v]->GetData().m_duplicate) {
+            vertexMap[v]->GetData().m_duplicate = edgeMap[vertexMap[v]->GetData().m_duplicate->GetData().m_id];
+        }
+    }
+    for (size_t e = 0; e < nE; e++) {
+        if (edgeMap[e]->GetData().m_newFace) {
+            edgeMap[e]->GetData().m_newFace = triangleMap[edgeMap[e]->GetData().m_newFace->GetData().m_id];
+        }
+        if (nT > 0) {
+            for (int32_t f = 0; f < 2; f++) {
+                if (edgeMap[e]->GetData().m_triangles[f]) {
+                    edgeMap[e]->GetData().m_triangles[f] = triangleMap[edgeMap[e]->GetData().m_triangles[f]->GetData().m_id];
+                }
+            }
+        }
+        for (int32_t v = 0; v < 2; v++) {
+            if (edgeMap[e]->GetData().m_vertices[v]) {
+                edgeMap[e]->GetData().m_vertices[v] = vertexMap[edgeMap[e]->GetData().m_vertices[v]->GetData().m_id];
+            }
+        }
+    }
+    for (size_t f = 0; f < nT; f++) {
+        if (nE > 0) {
+            for (int32_t e = 0; e < 3; e++) {
+                if (triangleMap[f]->GetData().m_edges[e]) {
+                    triangleMap[f]->GetData().m_edges[e] = edgeMap[triangleMap[f]->GetData().m_edges[e]->GetData().m_id];
+                }
+            }
+        }
+        for (int32_t v = 0; v < 3; v++) {
+            if (triangleMap[f]->GetData().m_vertices[v]) {
+                triangleMap[f]->GetData().m_vertices[v] = vertexMap[triangleMap[f]->GetData().m_vertices[v]->GetData().m_id];
+            }
+        }
+    }
+    delete[] vertexMap;
+    delete[] edgeMap;
+    delete[] triangleMap;
+}
+bool TMMesh::CheckConsistancy()
+{
+    size_t nE = m_edges.GetSize();
+    size_t nT = m_triangles.GetSize();
+    for (size_t e = 0; e < nE; e++) {
+        for (int32_t f = 0; f < 2; f++) {
+            if (!m_edges.GetHead()->GetData().m_triangles[f]) {
+                return false;
+            }
+        }
+        m_edges.Next();
+    }
+    for (size_t f = 0; f < nT; f++) {
+        for (int32_t e = 0; e < 3; e++) {
+            int32_t found = 0;
+            for (int32_t k = 0; k < 2; k++) {
+                if (m_triangles.GetHead()->GetData().m_edges[e]->GetData().m_triangles[k] == m_triangles.GetHead()) {
+                    found++;
+                }
+            }
+            if (found != 1) {
+                return false;
+            }
+        }
+        m_triangles.Next();
+    }
+    return true;
+}
+}
\ No newline at end of file
diff --git a/thirdparty/vhacd/src/vhacdMesh.cpp b/thirdparty/vhacd/src/vhacdMesh.cpp
new file mode 100644
index 0000000000..5d03989fda
--- /dev/null
+++ b/thirdparty/vhacd/src/vhacdMesh.cpp
@@ -0,0 +1,376 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "btConvexHullComputer.h"
+#include "vhacdMesh.h"
+#include "FloatMath.h"
+#include <fstream>
+#include <iosfwd>
+#include <iostream>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string>
+
+namespace VHACD {
+Mesh::Mesh()
+{
+    m_diag = 1.0;
+}
+Mesh::~Mesh()
+{
+}
+
+Vec3<double>& Mesh::ComputeCenter(void)
+{
+	const size_t nV = GetNPoints();
+	if (nV)
+	{
+		double center[3];
+		uint32_t pcount = uint32_t(GetNPoints());
+		const double *points = GetPoints();
+		uint32_t tcount = uint32_t(GetNTriangles());
+		const uint32_t *indices = (const uint32_t *)GetTriangles();
+		FLOAT_MATH::fm_computeCentroid(pcount, points, tcount, indices, center);
+		m_center.X() = center[0];
+		m_center.Y() = center[1];
+		m_center.Z() = center[2];
+		m_minBB = GetPoint(0);
+		m_maxBB = GetPoint(0);
+		for (size_t v = 1; v < nV; v++)
+		{
+			Vec3<double> p = GetPoint(v);
+			if (p.X() < m_minBB.X())
+			{
+				m_minBB.X() = p.X();
+			}
+			if (p.Y() < m_minBB.Y())
+			{
+				m_minBB.Y() = p.Y();
+			}
+			if (p.Z() < m_minBB.Z())
+			{
+				m_minBB.Z() = p.Z();
+			}
+			if (p.X() > m_maxBB.X())
+			{
+				m_maxBB.X() = p.X();
+			}
+			if (p.Y() > m_maxBB.Y())
+			{
+				m_maxBB.Y() = p.Y();
+			}
+			if (p.Z() > m_maxBB.Z())
+			{
+				m_maxBB.Z() = p.Z();
+			}
+		}
+	}
+	return m_center;
+}
+
+double Mesh::ComputeVolume() const
+{
+    const size_t nV = GetNPoints();
+    const size_t nT = GetNTriangles();
+    if (nV == 0 || nT == 0) {
+        return 0.0;
+    }
+
+    Vec3<double> bary(0.0, 0.0, 0.0);
+    for (size_t v = 0; v < nV; v++) {
+        bary += GetPoint(v);
+    }
+    bary /= static_cast<double>(nV);
+
+    Vec3<double> ver0, ver1, ver2;
+    double totalVolume = 0.0;
+    for (int32_t t = 0; t < int32_t(nT); t++) {
+        const Vec3<int32_t>& tri = GetTriangle(t);
+        ver0 = GetPoint(tri[0]);
+        ver1 = GetPoint(tri[1]);
+        ver2 = GetPoint(tri[2]);
+        totalVolume += ComputeVolume4(ver0, ver1, ver2, bary);
+    }
+    return totalVolume / 6.0;
+}
+
+void Mesh::ComputeConvexHull(const double* const pts,
+    const size_t nPts)
+{
+    ResizePoints(0);
+    ResizeTriangles(0);
+    btConvexHullComputer ch;
+    ch.compute(pts, 3 * sizeof(double), (int32_t)nPts, -1.0, -1.0);
+    for (int32_t v = 0; v < ch.vertices.size(); v++) {
+        AddPoint(Vec3<double>(ch.vertices[v].getX(), ch.vertices[v].getY(), ch.vertices[v].getZ()));
+    }
+    const int32_t nt = ch.faces.size();
+    for (int32_t t = 0; t < nt; ++t) {
+        const btConvexHullComputer::Edge* sourceEdge = &(ch.edges[ch.faces[t]]);
+        int32_t a = sourceEdge->getSourceVertex();
+        int32_t b = sourceEdge->getTargetVertex();
+        const btConvexHullComputer::Edge* edge = sourceEdge->getNextEdgeOfFace();
+        int32_t c = edge->getTargetVertex();
+        while (c != a) {
+            AddTriangle(Vec3<int32_t>(a, b, c));
+            edge = edge->getNextEdgeOfFace();
+            b = c;
+            c = edge->getTargetVertex();
+        }
+    }
+}
+void Mesh::Clip(const Plane& plane,
+    SArray<Vec3<double> >& positivePart,
+    SArray<Vec3<double> >& negativePart) const
+{
+    const size_t nV = GetNPoints();
+    if (nV == 0) {
+        return;
+    }
+    double d;
+    for (size_t v = 0; v < nV; v++) {
+        const Vec3<double>& pt = GetPoint(v);
+        d = plane.m_a * pt[0] + plane.m_b * pt[1] + plane.m_c * pt[2] + plane.m_d;
+        if (d > 0.0) {
+            positivePart.PushBack(pt);
+        }
+        else if (d < 0.0) {
+            negativePart.PushBack(pt);
+        }
+        else {
+            positivePart.PushBack(pt);
+            negativePart.PushBack(pt);
+        }
+    }
+}
+bool Mesh::IsInside(const Vec3<double>& pt) const
+{
+    const size_t nV = GetNPoints();
+    const size_t nT = GetNTriangles();
+    if (nV == 0 || nT == 0) {
+        return false;
+    }
+    Vec3<double> ver0, ver1, ver2;
+    double volume;
+    for (int32_t t = 0; t < int32_t(nT); t++) {
+        const Vec3<int32_t>& tri = GetTriangle(t);
+        ver0 = GetPoint(tri[0]);
+        ver1 = GetPoint(tri[1]);
+        ver2 = GetPoint(tri[2]);
+        volume = ComputeVolume4(ver0, ver1, ver2, pt);
+        if (volume < 0.0) {
+            return false;
+        }
+    }
+    return true;
+}
+double Mesh::ComputeDiagBB()
+{
+    const size_t nPoints = GetNPoints();
+    if (nPoints == 0)
+        return 0.0;
+    Vec3<double> minBB = m_points[0];
+    Vec3<double> maxBB = m_points[0];
+    double x, y, z;
+    for (size_t v = 1; v < nPoints; v++) {
+        x = m_points[v][0];
+        y = m_points[v][1];
+        z = m_points[v][2];
+        if (x < minBB[0])
+            minBB[0] = x;
+        else if (x > maxBB[0])
+            maxBB[0] = x;
+        if (y < minBB[1])
+            minBB[1] = y;
+        else if (y > maxBB[1])
+            maxBB[1] = y;
+        if (z < minBB[2])
+            minBB[2] = z;
+        else if (z > maxBB[2])
+            maxBB[2] = z;
+    }
+    return (m_diag = (maxBB - minBB).GetNorm());
+}
+
+#ifdef VHACD_DEBUG_MESH
+bool Mesh::SaveVRML2(const std::string& fileName) const
+{
+    std::ofstream fout(fileName.c_str());
+    if (fout.is_open()) {
+        const Material material;
+
+        if (SaveVRML2(fout, material)) {
+            fout.close();
+            return true;
+        }
+        return false;
+    }
+    return false;
+}
+bool Mesh::SaveVRML2(std::ofstream& fout, const Material& material) const
+{
+    if (fout.is_open()) {
+        fout.setf(std::ios::fixed, std::ios::floatfield);
+        fout.setf(std::ios::showpoint);
+        fout.precision(6);
+        size_t nV = m_points.Size();
+        size_t nT = m_triangles.Size();
+        fout << "#VRML V2.0 utf8" << std::endl;
+        fout << "" << std::endl;
+        fout << "# Vertices: " << nV << std::endl;
+        fout << "# Triangles: " << nT << std::endl;
+        fout << "" << std::endl;
+        fout << "Group {" << std::endl;
+        fout << "    children [" << std::endl;
+        fout << "        Shape {" << std::endl;
+        fout << "            appearance Appearance {" << std::endl;
+        fout << "                material Material {" << std::endl;
+        fout << "                    diffuseColor " << material.m_diffuseColor[0] << " "
+             << material.m_diffuseColor[1] << " "
+             << material.m_diffuseColor[2] << std::endl;
+        fout << "                    ambientIntensity " << material.m_ambientIntensity << std::endl;
+        fout << "                    specularColor " << material.m_specularColor[0] << " "
+             << material.m_specularColor[1] << " "
+             << material.m_specularColor[2] << std::endl;
+        fout << "                    emissiveColor " << material.m_emissiveColor[0] << " "
+             << material.m_emissiveColor[1] << " "
+             << material.m_emissiveColor[2] << std::endl;
+        fout << "                    shininess " << material.m_shininess << std::endl;
+        fout << "                    transparency " << material.m_transparency << std::endl;
+        fout << "                }" << std::endl;
+        fout << "            }" << std::endl;
+        fout << "            geometry IndexedFaceSet {" << std::endl;
+        fout << "                ccw TRUE" << std::endl;
+        fout << "                solid TRUE" << std::endl;
+        fout << "                convex TRUE" << std::endl;
+        if (nV > 0) {
+            fout << "                coord DEF co Coordinate {" << std::endl;
+            fout << "                    point [" << std::endl;
+            for (size_t v = 0; v < nV; v++) {
+                fout << "                        " << m_points[v][0] << " "
+                     << m_points[v][1] << " "
+                     << m_points[v][2] << "," << std::endl;
+            }
+            fout << "                    ]" << std::endl;
+            fout << "                }" << std::endl;
+        }
+        if (nT > 0) {
+            fout << "                coordIndex [ " << std::endl;
+            for (size_t f = 0; f < nT; f++) {
+                fout << "                        " << m_triangles[f][0] << ", "
+                     << m_triangles[f][1] << ", "
+                     << m_triangles[f][2] << ", -1," << std::endl;
+            }
+            fout << "                ]" << std::endl;
+        }
+        fout << "            }" << std::endl;
+        fout << "        }" << std::endl;
+        fout << "    ]" << std::endl;
+        fout << "}" << std::endl;
+        return true;
+    }
+    return false;
+}
+bool Mesh::SaveOFF(const std::string& fileName) const
+{
+    std::ofstream fout(fileName.c_str());
+    if (fout.is_open()) {
+        size_t nV = m_points.Size();
+        size_t nT = m_triangles.Size();
+        fout << "OFF" << std::endl;
+        fout << nV << " " << nT << " " << 0 << std::endl;
+        for (size_t v = 0; v < nV; v++) {
+            fout << m_points[v][0] << " "
+                 << m_points[v][1] << " "
+                 << m_points[v][2] << std::endl;
+        }
+        for (size_t f = 0; f < nT; f++) {
+            fout << "3 " << m_triangles[f][0] << " "
+                 << m_triangles[f][1] << " "
+                 << m_triangles[f][2] << std::endl;
+        }
+        fout.close();
+        return true;
+    }
+    return false;
+}
+
+bool Mesh::LoadOFF(const std::string& fileName, bool invert)
+{
+    FILE* fid = fopen(fileName.c_str(), "r");
+    if (fid) {
+        const std::string strOFF("OFF");
+        char temp[1024];
+        fscanf(fid, "%s", temp);
+        if (std::string(temp) != strOFF) {
+            fclose(fid);
+            return false;
+        }
+        else {
+            int32_t nv = 0;
+            int32_t nf = 0;
+            int32_t ne = 0;
+            fscanf(fid, "%i", &nv);
+            fscanf(fid, "%i", &nf);
+            fscanf(fid, "%i", &ne);
+            m_points.Resize(nv);
+            m_triangles.Resize(nf);
+            Vec3<double> coord;
+            float x, y, z;
+            for (int32_t p = 0; p < nv; p++) {
+                fscanf(fid, "%f", &x);
+                fscanf(fid, "%f", &y);
+                fscanf(fid, "%f", &z);
+                m_points[p][0] = x;
+                m_points[p][1] = y;
+                m_points[p][2] = z;
+            }
+            int32_t i, j, k, s;
+            for (int32_t t = 0; t < nf; ++t) {
+                fscanf(fid, "%i", &s);
+                if (s == 3) {
+                    fscanf(fid, "%i", &i);
+                    fscanf(fid, "%i", &j);
+                    fscanf(fid, "%i", &k);
+                    m_triangles[t][0] = i;
+                    if (invert) {
+                        m_triangles[t][1] = k;
+                        m_triangles[t][2] = j;
+                    }
+                    else {
+                        m_triangles[t][1] = j;
+                        m_triangles[t][2] = k;
+                    }
+                }
+                else // Fix me: support only triangular meshes
+                {
+                    for (int32_t h = 0; h < s; ++h)
+                        fscanf(fid, "%i", &s);
+                }
+            }
+            fclose(fid);
+        }
+    }
+    else {
+        return false;
+    }
+    return true;
+}
+#endif // VHACD_DEBUG_MESH
+}
diff --git a/thirdparty/vhacd/src/vhacdRaycastMesh.cpp b/thirdparty/vhacd/src/vhacdRaycastMesh.cpp
new file mode 100644
index 0000000000..e8b9435d5f
--- /dev/null
+++ b/thirdparty/vhacd/src/vhacdRaycastMesh.cpp
@@ -0,0 +1,208 @@
+#include "vhacdRaycastMesh.h"
+#include <math.h>
+#include <assert.h>
+
+namespace RAYCAST_MESH
+{
+
+/* a = b - c */
+#define vector(a,b,c) \
+	(a)[0] = (b)[0] - (c)[0];	\
+	(a)[1] = (b)[1] - (c)[1];	\
+	(a)[2] = (b)[2] - (c)[2];
+
+#define innerProduct(v,q) \
+	((v)[0] * (q)[0] + \
+	(v)[1] * (q)[1] + \
+	(v)[2] * (q)[2])
+
+#define crossProduct(a,b,c) \
+	(a)[0] = (b)[1] * (c)[2] - (c)[1] * (b)[2]; \
+	(a)[1] = (b)[2] * (c)[0] - (c)[2] * (b)[0]; \
+	(a)[2] = (b)[0] * (c)[1] - (c)[0] * (b)[1];
+
+
+static inline bool rayIntersectsTriangle(const double *p,const double *d,const double *v0,const double *v1,const double *v2,double &t)
+{
+	double e1[3],e2[3],h[3],s[3],q[3];
+	double a,f,u,v;
+
+	vector(e1,v1,v0);
+	vector(e2,v2,v0);
+	crossProduct(h,d,e2);
+	a = innerProduct(e1,h);
+
+	if (a > -0.00001 && a < 0.00001)
+		return(false);
+
+	f = 1/a;
+	vector(s,p,v0);
+	u = f * (innerProduct(s,h));
+
+	if (u < 0.0 || u > 1.0)
+		return(false);
+
+	crossProduct(q,s,e1);
+	v = f * innerProduct(d,q);
+	if (v < 0.0 || u + v > 1.0)
+		return(false);
+	// at this stage we can compute t to find out where
+	// the intersection point is on the line
+	t = f * innerProduct(e2,q);
+	if (t > 0) // ray intersection
+		return(true);
+	else // this means that there is a line intersection
+		// but not a ray intersection
+		return (false);
+}
+
+static double getPointDistance(const double *p1, const double *p2)
+{
+	double dx = p1[0] - p2[0];
+	double dy = p1[1] - p2[1];
+	double dz = p1[2] - p2[2];
+	return sqrt(dx*dx + dy*dy + dz*dz);
+}
+
+class MyRaycastMesh : public VHACD::RaycastMesh
+{
+public:
+
+    template <class T>
+	MyRaycastMesh(uint32_t vcount,
+                  const T *vertices,
+                  uint32_t tcount,
+                  const uint32_t *indices)
+	{
+        mVcount = vcount;
+        mVertices = new double[mVcount * 3];
+        for (uint32_t i = 0; i < mVcount; i++)
+        {
+            mVertices[i * 3 + 0] = vertices[0];
+            mVertices[i * 3 + 1] = vertices[1];
+            mVertices[i * 3 + 2] = vertices[2];
+            vertices += 3;
+        }
+        mTcount = tcount;
+        mIndices = new uint32_t[mTcount * 3];
+        for (uint32_t i = 0; i < mTcount; i++)
+        {
+            mIndices[i * 3 + 0] = indices[0];
+            mIndices[i * 3 + 1] = indices[1];
+            mIndices[i * 3 + 2] = indices[2];
+            indices += 3;
+        }
+	}
+
+
+	~MyRaycastMesh(void)
+	{
+        delete[]mVertices;
+        delete[]mIndices;
+	}
+
+	virtual void release(void)
+	{
+		delete this;
+	}
+
+	virtual bool raycast(const double *from,			// The starting point of the raycast
+		const double *to,				// The ending point of the raycast
+		const double *closestToPoint,	// The point to match the nearest hit location (can just be the 'from' location of no specific point)
+		double *hitLocation,			// The point where the ray hit nearest to the 'closestToPoint' location
+		double *hitDistance) final		// The distance the ray traveled to the hit location
+	{
+		bool ret = false;
+
+		double dir[3];
+
+		dir[0] = to[0] - from[0];
+		dir[1] = to[1] - from[1];
+		dir[2] = to[2] - from[2];
+
+		double distance = sqrt( dir[0]*dir[0] + dir[1]*dir[1]+dir[2]*dir[2] );
+		if ( distance < 0.0000000001f ) return false;
+		double recipDistance = 1.0f / distance;
+		dir[0]*=recipDistance;
+		dir[1]*=recipDistance;
+		dir[2]*=recipDistance;
+		const uint32_t *indices = mIndices;
+		const double *vertices = mVertices;
+		double nearestDistance = distance;
+
+		for (uint32_t tri=0; tri<mTcount; tri++)
+		{
+			uint32_t i1 = indices[tri*3+0];
+			uint32_t i2 = indices[tri*3+1];
+			uint32_t i3 = indices[tri*3+2];
+
+			const double *p1 = &vertices[i1*3];
+			const double *p2 = &vertices[i2*3];
+			const double *p3 = &vertices[i3*3];
+
+			double t;
+			if ( rayIntersectsTriangle(from,dir,p1,p2,p3,t))
+			{
+				double hitPos[3];
+
+				hitPos[0] = from[0] + dir[0] * t;
+				hitPos[1] = from[1] + dir[1] * t;
+				hitPos[2] = from[2] + dir[2] * t;
+
+				double pointDistance = getPointDistance(hitPos, closestToPoint);
+
+				if (pointDistance < nearestDistance )
+				{
+					nearestDistance = pointDistance;
+					if ( hitLocation )
+					{
+						hitLocation[0] = hitPos[0];
+						hitLocation[1] = hitPos[1];
+						hitLocation[2] = hitPos[2];
+					}
+					if ( hitDistance )
+					{
+						*hitDistance = pointDistance;
+					}
+					ret = true;
+				}
+			}
+		}
+		return ret;
+	}
+
+	uint32_t		mVcount;
+	double	        *mVertices;
+	uint32_t		mTcount;
+	uint32_t	    *mIndices;
+};
+
+};
+
+
+
+using namespace RAYCAST_MESH;
+
+namespace VHACD
+{
+
+    RaycastMesh * RaycastMesh::createRaycastMesh(uint32_t vcount,		// The number of vertices in the source triangle mesh
+        const double *vertices,		// The array of vertex positions in the format x1,y1,z1..x2,y2,z2.. etc.
+        uint32_t tcount,		// The number of triangles in the source triangle mesh
+        const uint32_t *indices) // The triangle indices in the format of i1,i2,i3 ... i4,i5,i6, ...
+    {
+        MyRaycastMesh *m = new MyRaycastMesh(vcount, vertices, tcount, indices);
+        return static_cast<RaycastMesh *>(m);
+    }
+
+    RaycastMesh * RaycastMesh::createRaycastMesh(uint32_t vcount,		// The number of vertices in the source triangle mesh
+        const float *vertices,		// The array of vertex positions in the format x1,y1,z1..x2,y2,z2.. etc.
+        uint32_t tcount,		// The number of triangles in the source triangle mesh
+        const uint32_t *indices) // The triangle indices in the format of i1,i2,i3 ... i4,i5,i6, ...
+    {
+        MyRaycastMesh *m = new MyRaycastMesh(vcount, vertices, tcount, indices);
+        return static_cast<RaycastMesh *>(m);
+    }
+
+
+} // end of VHACD namespace
\ No newline at end of file
diff --git a/thirdparty/vhacd/src/vhacdVolume.cpp b/thirdparty/vhacd/src/vhacdVolume.cpp
new file mode 100644
index 0000000000..a250e5acaa
--- /dev/null
+++ b/thirdparty/vhacd/src/vhacdVolume.cpp
@@ -0,0 +1,1626 @@
+/* Copyright (c) 2011 Khaled Mamou (kmamou at gmail dot com)
+ All rights reserved.
+ 
+ 
+ Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ 
+ 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ 
+ 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ 
+ 3. The names of the contributors may not be used to endorse or promote products derived from this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "btConvexHullComputer.h"
+#include "vhacdVolume.h"
+#include <algorithm>
+#include <float.h>
+#include <math.h>
+#include <queue>
+#include <string.h>
+
+#ifdef _MSC_VER
+#pragma warning(disable:4458 4100)
+#endif
+
+
+namespace VHACD {
+/********************************************************/
+/* AABB-triangle overlap test code                      */
+/* by Tomas Akenine-M�ller                              */
+/* Function: int32_t triBoxOverlap(float boxcenter[3],      */
+/*          float boxhalfsize[3],float triverts[3][3]); */
+/* History:                                             */
+/*   2001-03-05: released the code in its first version */
+/*   2001-06-18: changed the order of the tests, faster */
+/*                                                      */
+/* Acknowledgement: Many thanks to Pierre Terdiman for  */
+/* suggestions and discussions on how to optimize code. */
+/* Thanks to David Hunt for finding a ">="-bug!         */
+/********************************************************/
+
+#define X 0
+#define Y 1
+#define Z 2
+#define FINDMINMAX(x0, x1, x2, min, max) \
+    min = max = x0;                      \
+    if (x1 < min)                        \
+        min = x1;                        \
+    if (x1 > max)                        \
+        max = x1;                        \
+    if (x2 < min)                        \
+        min = x2;                        \
+    if (x2 > max)                        \
+        max = x2;
+
+#define AXISTEST_X01(a, b, fa, fb)                   \
+    p0 = a * v0[Y] - b * v0[Z];                      \
+    p2 = a * v2[Y] - b * v2[Z];                      \
+    if (p0 < p2) {                                   \
+        min = p0;                                    \
+        max = p2;                                    \
+    }                                                \
+    else {                                           \
+        min = p2;                                    \
+        max = p0;                                    \
+    }                                                \
+    rad = fa * boxhalfsize[Y] + fb * boxhalfsize[Z]; \
+    if (min > rad || max < -rad)                     \
+        return 0;
+
+#define AXISTEST_X2(a, b, fa, fb)                    \
+    p0 = a * v0[Y] - b * v0[Z];                      \
+    p1 = a * v1[Y] - b * v1[Z];                      \
+    if (p0 < p1) {                                   \
+        min = p0;                                    \
+        max = p1;                                    \
+    }                                                \
+    else {                                           \
+        min = p1;                                    \
+        max = p0;                                    \
+    }                                                \
+    rad = fa * boxhalfsize[Y] + fb * boxhalfsize[Z]; \
+    if (min > rad || max < -rad)                     \
+        return 0;
+
+#define AXISTEST_Y02(a, b, fa, fb)                   \
+    p0 = -a * v0[X] + b * v0[Z];                     \
+    p2 = -a * v2[X] + b * v2[Z];                     \
+    if (p0 < p2) {                                   \
+        min = p0;                                    \
+        max = p2;                                    \
+    }                                                \
+    else {                                           \
+        min = p2;                                    \
+        max = p0;                                    \
+    }                                                \
+    rad = fa * boxhalfsize[X] + fb * boxhalfsize[Z]; \
+    if (min > rad || max < -rad)                     \
+        return 0;
+
+#define AXISTEST_Y1(a, b, fa, fb)                    \
+    p0 = -a * v0[X] + b * v0[Z];                     \
+    p1 = -a * v1[X] + b * v1[Z];                     \
+    if (p0 < p1) {                                   \
+        min = p0;                                    \
+        max = p1;                                    \
+    }                                                \
+    else {                                           \
+        min = p1;                                    \
+        max = p0;                                    \
+    }                                                \
+    rad = fa * boxhalfsize[X] + fb * boxhalfsize[Z]; \
+    if (min > rad || max < -rad)                     \
+        return 0;
+
+#define AXISTEST_Z12(a, b, fa, fb)                   \
+    p1 = a * v1[X] - b * v1[Y];                      \
+    p2 = a * v2[X] - b * v2[Y];                      \
+    if (p2 < p1) {                                   \
+        min = p2;                                    \
+        max = p1;                                    \
+    }                                                \
+    else {                                           \
+        min = p1;                                    \
+        max = p2;                                    \
+    }                                                \
+    rad = fa * boxhalfsize[X] + fb * boxhalfsize[Y]; \
+    if (min > rad || max < -rad)                     \
+        return 0;
+
+#define AXISTEST_Z0(a, b, fa, fb)                    \
+    p0 = a * v0[X] - b * v0[Y];                      \
+    p1 = a * v1[X] - b * v1[Y];                      \
+    if (p0 < p1) {                                   \
+        min = p0;                                    \
+        max = p1;                                    \
+    }                                                \
+    else {                                           \
+        min = p1;                                    \
+        max = p0;                                    \
+    }                                                \
+    rad = fa * boxhalfsize[X] + fb * boxhalfsize[Y]; \
+    if (min > rad || max < -rad)                     \
+        return 0;
+
+int32_t PlaneBoxOverlap(const Vec3<double>& normal,
+    const Vec3<double>& vert,
+    const Vec3<double>& maxbox)
+{
+    int32_t q;
+    Vec3<double> vmin, vmax;
+    double v;
+    for (q = X; q <= Z; q++) {
+        v = vert[q];
+        if (normal[q] > 0.0) {
+            vmin[q] = -maxbox[q] - v;
+            vmax[q] = maxbox[q] - v;
+        }
+        else {
+            vmin[q] = maxbox[q] - v;
+            vmax[q] = -maxbox[q] - v;
+        }
+    }
+    if (normal * vmin > 0.0)
+        return 0;
+    if (normal * vmax >= 0.0)
+        return 1;
+    return 0;
+}
+
+int32_t TriBoxOverlap(const Vec3<double>& boxcenter,
+    const Vec3<double>& boxhalfsize,
+    const Vec3<double>& triver0,
+    const Vec3<double>& triver1,
+    const Vec3<double>& triver2)
+{
+    /*    use separating axis theorem to test overlap between triangle and box */
+    /*    need to test for overlap in these directions: */
+    /*    1) the {x,y,z}-directions (actually, since we use the AABB of the triangle */
+    /*       we do not even need to test these) */
+    /*    2) normal of the triangle */
+    /*    3) crossproduct(edge from tri, {x,y,z}-directin) */
+    /*       this gives 3x3=9 more tests */
+
+    Vec3<double> v0, v1, v2;
+    double min, max, p0, p1, p2, rad, fex, fey, fez; // -NJMP- "d" local variable removed
+    Vec3<double> normal, e0, e1, e2;
+
+    /* This is the fastest branch on Sun */
+    /* move everything so that the boxcenter is in (0,0,0) */
+
+    v0 = triver0 - boxcenter;
+    v1 = triver1 - boxcenter;
+    v2 = triver2 - boxcenter;
+
+    /* compute triangle edges */
+    e0 = v1 - v0; /* tri edge 0 */
+    e1 = v2 - v1; /* tri edge 1 */
+    e2 = v0 - v2; /* tri edge 2 */
+
+    /* Bullet 3:  */
+    /*  test the 9 tests first (this was faster) */
+    fex = fabs(e0[X]);
+    fey = fabs(e0[Y]);
+    fez = fabs(e0[Z]);
+
+    AXISTEST_X01(e0[Z], e0[Y], fez, fey);
+    AXISTEST_Y02(e0[Z], e0[X], fez, fex);
+    AXISTEST_Z12(e0[Y], e0[X], fey, fex);
+
+    fex = fabs(e1[X]);
+    fey = fabs(e1[Y]);
+    fez = fabs(e1[Z]);
+
+    AXISTEST_X01(e1[Z], e1[Y], fez, fey);
+    AXISTEST_Y02(e1[Z], e1[X], fez, fex);
+    AXISTEST_Z0(e1[Y], e1[X], fey, fex);
+
+    fex = fabs(e2[X]);
+    fey = fabs(e2[Y]);
+    fez = fabs(e2[Z]);
+
+    AXISTEST_X2(e2[Z], e2[Y], fez, fey);
+    AXISTEST_Y1(e2[Z], e2[X], fez, fex);
+    AXISTEST_Z12(e2[Y], e2[X], fey, fex);
+
+    /* Bullet 1: */
+    /*  first test overlap in the {x,y,z}-directions */
+    /*  find min, max of the triangle each direction, and test for overlap in */
+    /*  that direction -- this is equivalent to testing a minimal AABB around */
+    /*  the triangle against the AABB */
+
+    /* test in X-direction */
+    FINDMINMAX(v0[X], v1[X], v2[X], min, max);
+    if (min > boxhalfsize[X] || max < -boxhalfsize[X])
+        return 0;
+
+    /* test in Y-direction */
+    FINDMINMAX(v0[Y], v1[Y], v2[Y], min, max);
+    if (min > boxhalfsize[Y] || max < -boxhalfsize[Y])
+        return 0;
+
+    /* test in Z-direction */
+    FINDMINMAX(v0[Z], v1[Z], v2[Z], min, max);
+    if (min > boxhalfsize[Z] || max < -boxhalfsize[Z])
+        return 0;
+
+    /* Bullet 2: */
+    /*  test if the box intersects the plane of the triangle */
+    /*  compute plane equation of triangle: normal*x+d=0 */
+    normal = e0 ^ e1;
+
+    if (!PlaneBoxOverlap(normal, v0, boxhalfsize))
+        return 0;
+    return 1; /* box and triangle overlaps */
+}
+
+// Slightly modified version of  Stan Melax's code for 3x3 matrix diagonalization (Thanks Stan!)
+// source: http://www.melax.com/diag.html?attredirects=0
+void Diagonalize(const double (&A)[3][3], double (&Q)[3][3], double (&D)[3][3])
+{
+    // A must be a symmetric matrix.
+    // returns Q and D such that
+    // Diagonal matrix D = QT * A * Q;  and  A = Q*D*QT
+    const int32_t maxsteps = 24; // certainly wont need that many.
+    int32_t k0, k1, k2;
+    double o[3], m[3];
+    double q[4] = { 0.0, 0.0, 0.0, 1.0 };
+    double jr[4];
+    double sqw, sqx, sqy, sqz;
+    double tmp1, tmp2, mq;
+    double AQ[3][3];
+    double thet, sgn, t, c;
+    for (int32_t i = 0; i < maxsteps; ++i) {
+        // quat to matrix
+        sqx = q[0] * q[0];
+        sqy = q[1] * q[1];
+        sqz = q[2] * q[2];
+        sqw = q[3] * q[3];
+        Q[0][0] = (sqx - sqy - sqz + sqw);
+        Q[1][1] = (-sqx + sqy - sqz + sqw);
+        Q[2][2] = (-sqx - sqy + sqz + sqw);
+        tmp1 = q[0] * q[1];
+        tmp2 = q[2] * q[3];
+        Q[1][0] = 2.0 * (tmp1 + tmp2);
+        Q[0][1] = 2.0 * (tmp1 - tmp2);
+        tmp1 = q[0] * q[2];
+        tmp2 = q[1] * q[3];
+        Q[2][0] = 2.0 * (tmp1 - tmp2);
+        Q[0][2] = 2.0 * (tmp1 + tmp2);
+        tmp1 = q[1] * q[2];
+        tmp2 = q[0] * q[3];
+        Q[2][1] = 2.0 * (tmp1 + tmp2);
+        Q[1][2] = 2.0 * (tmp1 - tmp2);
+
+        // AQ = A * Q
+        AQ[0][0] = Q[0][0] * A[0][0] + Q[1][0] * A[0][1] + Q[2][0] * A[0][2];
+        AQ[0][1] = Q[0][1] * A[0][0] + Q[1][1] * A[0][1] + Q[2][1] * A[0][2];
+        AQ[0][2] = Q[0][2] * A[0][0] + Q[1][2] * A[0][1] + Q[2][2] * A[0][2];
+        AQ[1][0] = Q[0][0] * A[0][1] + Q[1][0] * A[1][1] + Q[2][0] * A[1][2];
+        AQ[1][1] = Q[0][1] * A[0][1] + Q[1][1] * A[1][1] + Q[2][1] * A[1][2];
+        AQ[1][2] = Q[0][2] * A[0][1] + Q[1][2] * A[1][1] + Q[2][2] * A[1][2];
+        AQ[2][0] = Q[0][0] * A[0][2] + Q[1][0] * A[1][2] + Q[2][0] * A[2][2];
+        AQ[2][1] = Q[0][1] * A[0][2] + Q[1][1] * A[1][2] + Q[2][1] * A[2][2];
+        AQ[2][2] = Q[0][2] * A[0][2] + Q[1][2] * A[1][2] + Q[2][2] * A[2][2];
+        // D = Qt * AQ
+        D[0][0] = AQ[0][0] * Q[0][0] + AQ[1][0] * Q[1][0] + AQ[2][0] * Q[2][0];
+        D[0][1] = AQ[0][0] * Q[0][1] + AQ[1][0] * Q[1][1] + AQ[2][0] * Q[2][1];
+        D[0][2] = AQ[0][0] * Q[0][2] + AQ[1][0] * Q[1][2] + AQ[2][0] * Q[2][2];
+        D[1][0] = AQ[0][1] * Q[0][0] + AQ[1][1] * Q[1][0] + AQ[2][1] * Q[2][0];
+        D[1][1] = AQ[0][1] * Q[0][1] + AQ[1][1] * Q[1][1] + AQ[2][1] * Q[2][1];
+        D[1][2] = AQ[0][1] * Q[0][2] + AQ[1][1] * Q[1][2] + AQ[2][1] * Q[2][2];
+        D[2][0] = AQ[0][2] * Q[0][0] + AQ[1][2] * Q[1][0] + AQ[2][2] * Q[2][0];
+        D[2][1] = AQ[0][2] * Q[0][1] + AQ[1][2] * Q[1][1] + AQ[2][2] * Q[2][1];
+        D[2][2] = AQ[0][2] * Q[0][2] + AQ[1][2] * Q[1][2] + AQ[2][2] * Q[2][2];
+        o[0] = D[1][2];
+        o[1] = D[0][2];
+        o[2] = D[0][1];
+        m[0] = fabs(o[0]);
+        m[1] = fabs(o[1]);
+        m[2] = fabs(o[2]);
+
+        k0 = (m[0] > m[1] && m[0] > m[2]) ? 0 : (m[1] > m[2]) ? 1 : 2; // index of largest element of offdiag
+        k1 = (k0 + 1) % 3;
+        k2 = (k0 + 2) % 3;
+        if (o[k0] == 0.0) {
+            break; // diagonal already
+        }
+        thet = (D[k2][k2] - D[k1][k1]) / (2.0 * o[k0]);
+        sgn = (thet > 0.0) ? 1.0 : -1.0;
+        thet *= sgn; // make it positive
+        t = sgn / (thet + ((thet < 1.E6) ? sqrt(thet * thet + 1.0) : thet)); // sign(T)/(|T|+sqrt(T^2+1))
+        c = 1.0 / sqrt(t * t + 1.0); //  c= 1/(t^2+1) , t=s/c
+        if (c == 1.0) {
+            break; // no room for improvement - reached machine precision.
+        }
+        jr[0] = jr[1] = jr[2] = jr[3] = 0.0;
+        jr[k0] = sgn * sqrt((1.0 - c) / 2.0); // using 1/2 angle identity sin(a/2) = sqrt((1-cos(a))/2)
+        jr[k0] *= -1.0; // since our quat-to-matrix convention was for v*M instead of M*v
+        jr[3] = sqrt(1.0 - jr[k0] * jr[k0]);
+        if (jr[3] == 1.0) {
+            break; // reached limits of floating point precision
+        }
+        q[0] = (q[3] * jr[0] + q[0] * jr[3] + q[1] * jr[2] - q[2] * jr[1]);
+        q[1] = (q[3] * jr[1] - q[0] * jr[2] + q[1] * jr[3] + q[2] * jr[0]);
+        q[2] = (q[3] * jr[2] + q[0] * jr[1] - q[1] * jr[0] + q[2] * jr[3]);
+        q[3] = (q[3] * jr[3] - q[0] * jr[0] - q[1] * jr[1] - q[2] * jr[2]);
+        mq = sqrt(q[0] * q[0] + q[1] * q[1] + q[2] * q[2] + q[3] * q[3]);
+        q[0] /= mq;
+        q[1] /= mq;
+        q[2] /= mq;
+        q[3] /= mq;
+    }
+}
+const double TetrahedronSet::EPS = 0.0000000000001;
+VoxelSet::VoxelSet()
+{
+    m_minBB[0] = m_minBB[1] = m_minBB[2] = 0.0;
+    m_minBBVoxels[0] = m_minBBVoxels[1] = m_minBBVoxels[2] = 0;
+    m_maxBBVoxels[0] = m_maxBBVoxels[1] = m_maxBBVoxels[2] = 1;
+    m_minBBPts[0] = m_minBBPts[1] = m_minBBPts[2] = 0;
+    m_maxBBPts[0] = m_maxBBPts[1] = m_maxBBPts[2] = 1;
+    m_barycenter[0] = m_barycenter[1] = m_barycenter[2] = 0;
+    m_barycenterPCA[0] = m_barycenterPCA[1] = m_barycenterPCA[2] = 0.0;
+    m_scale = 1.0;
+    m_unitVolume = 1.0;
+    m_numVoxelsOnSurface = 0;
+    m_numVoxelsInsideSurface = 0;
+    memset(m_Q, 0, sizeof(double) * 9);
+    memset(m_D, 0, sizeof(double) * 9);
+}
+VoxelSet::~VoxelSet(void)
+{
+}
+void VoxelSet::ComputeBB()
+{
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+    for (int32_t h = 0; h < 3; ++h) {
+        m_minBBVoxels[h] = m_voxels[0].m_coord[h];
+        m_maxBBVoxels[h] = m_voxels[0].m_coord[h];
+    }
+    Vec3<double> bary(0.0);
+    for (size_t p = 0; p < nVoxels; ++p) {
+        for (int32_t h = 0; h < 3; ++h) {
+            bary[h] += m_voxels[p].m_coord[h];
+            if (m_minBBVoxels[h] > m_voxels[p].m_coord[h])
+                m_minBBVoxels[h] = m_voxels[p].m_coord[h];
+            if (m_maxBBVoxels[h] < m_voxels[p].m_coord[h])
+                m_maxBBVoxels[h] = m_voxels[p].m_coord[h];
+        }
+    }
+    bary /= (double)nVoxels;
+    for (int32_t h = 0; h < 3; ++h) {
+        m_minBBPts[h] = m_minBBVoxels[h] * m_scale + m_minBB[h];
+        m_maxBBPts[h] = m_maxBBVoxels[h] * m_scale + m_minBB[h];
+        m_barycenter[h] = (short)(bary[h] + 0.5);
+    }
+}
+void VoxelSet::ComputeConvexHull(Mesh& meshCH, const size_t sampling) const
+{
+    const size_t CLUSTER_SIZE = 65536;
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+
+    SArray<Vec3<double> > cpoints;
+
+    Vec3<double>* points = new Vec3<double>[CLUSTER_SIZE];
+    size_t p = 0;
+    size_t s = 0;
+    short i, j, k;
+    while (p < nVoxels) {
+        size_t q = 0;
+        while (q < CLUSTER_SIZE && p < nVoxels) {
+            if (m_voxels[p].m_data == PRIMITIVE_ON_SURFACE) {
+                ++s;
+                if (s == sampling) {
+                    s = 0;
+                    i = m_voxels[p].m_coord[0];
+                    j = m_voxels[p].m_coord[1];
+                    k = m_voxels[p].m_coord[2];
+                    Vec3<double> p0((i - 0.5) * m_scale, (j - 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p1((i + 0.5) * m_scale, (j - 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p2((i + 0.5) * m_scale, (j + 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p3((i - 0.5) * m_scale, (j + 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p4((i - 0.5) * m_scale, (j - 0.5) * m_scale, (k + 0.5) * m_scale);
+                    Vec3<double> p5((i + 0.5) * m_scale, (j - 0.5) * m_scale, (k + 0.5) * m_scale);
+                    Vec3<double> p6((i + 0.5) * m_scale, (j + 0.5) * m_scale, (k + 0.5) * m_scale);
+                    Vec3<double> p7((i - 0.5) * m_scale, (j + 0.5) * m_scale, (k + 0.5) * m_scale);
+                    points[q++] = p0 + m_minBB;
+                    points[q++] = p1 + m_minBB;
+                    points[q++] = p2 + m_minBB;
+                    points[q++] = p3 + m_minBB;
+                    points[q++] = p4 + m_minBB;
+                    points[q++] = p5 + m_minBB;
+                    points[q++] = p6 + m_minBB;
+                    points[q++] = p7 + m_minBB;
+                }
+            }
+            ++p;
+        }
+        btConvexHullComputer ch;
+        ch.compute((double*)points, 3 * sizeof(double), (int32_t)q, -1.0, -1.0);
+        for (int32_t v = 0; v < ch.vertices.size(); v++) {
+            cpoints.PushBack(Vec3<double>(ch.vertices[v].getX(), ch.vertices[v].getY(), ch.vertices[v].getZ()));
+        }
+    }
+    delete[] points;
+
+    points = cpoints.Data();
+    btConvexHullComputer ch;
+    ch.compute((double*)points, 3 * sizeof(double), (int32_t)cpoints.Size(), -1.0, -1.0);
+    meshCH.ResizePoints(0);
+    meshCH.ResizeTriangles(0);
+    for (int32_t v = 0; v < ch.vertices.size(); v++) {
+        meshCH.AddPoint(Vec3<double>(ch.vertices[v].getX(), ch.vertices[v].getY(), ch.vertices[v].getZ()));
+    }
+    const int32_t nt = ch.faces.size();
+    for (int32_t t = 0; t < nt; ++t) {
+        const btConvexHullComputer::Edge* sourceEdge = &(ch.edges[ch.faces[t]]);
+        int32_t a = sourceEdge->getSourceVertex();
+        int32_t b = sourceEdge->getTargetVertex();
+        const btConvexHullComputer::Edge* edge = sourceEdge->getNextEdgeOfFace();
+        int32_t c = edge->getTargetVertex();
+        while (c != a) {
+            meshCH.AddTriangle(Vec3<int32_t>(a, b, c));
+            edge = edge->getNextEdgeOfFace();
+            b = c;
+            c = edge->getTargetVertex();
+        }
+    }
+}
+void VoxelSet::GetPoints(const Voxel& voxel,
+    Vec3<double>* const pts) const
+{
+    short i = voxel.m_coord[0];
+    short j = voxel.m_coord[1];
+    short k = voxel.m_coord[2];
+    pts[0][0] = (i - 0.5) * m_scale + m_minBB[0];
+    pts[1][0] = (i + 0.5) * m_scale + m_minBB[0];
+    pts[2][0] = (i + 0.5) * m_scale + m_minBB[0];
+    pts[3][0] = (i - 0.5) * m_scale + m_minBB[0];
+    pts[4][0] = (i - 0.5) * m_scale + m_minBB[0];
+    pts[5][0] = (i + 0.5) * m_scale + m_minBB[0];
+    pts[6][0] = (i + 0.5) * m_scale + m_minBB[0];
+    pts[7][0] = (i - 0.5) * m_scale + m_minBB[0];
+    pts[0][1] = (j - 0.5) * m_scale + m_minBB[1];
+    pts[1][1] = (j - 0.5) * m_scale + m_minBB[1];
+    pts[2][1] = (j + 0.5) * m_scale + m_minBB[1];
+    pts[3][1] = (j + 0.5) * m_scale + m_minBB[1];
+    pts[4][1] = (j - 0.5) * m_scale + m_minBB[1];
+    pts[5][1] = (j - 0.5) * m_scale + m_minBB[1];
+    pts[6][1] = (j + 0.5) * m_scale + m_minBB[1];
+    pts[7][1] = (j + 0.5) * m_scale + m_minBB[1];
+    pts[0][2] = (k - 0.5) * m_scale + m_minBB[2];
+    pts[1][2] = (k - 0.5) * m_scale + m_minBB[2];
+    pts[2][2] = (k - 0.5) * m_scale + m_minBB[2];
+    pts[3][2] = (k - 0.5) * m_scale + m_minBB[2];
+    pts[4][2] = (k + 0.5) * m_scale + m_minBB[2];
+    pts[5][2] = (k + 0.5) * m_scale + m_minBB[2];
+    pts[6][2] = (k + 0.5) * m_scale + m_minBB[2];
+    pts[7][2] = (k + 0.5) * m_scale + m_minBB[2];
+}
+void VoxelSet::Intersect(const Plane& plane,
+    SArray<Vec3<double> >* const positivePts,
+    SArray<Vec3<double> >* const negativePts,
+    const size_t sampling) const
+{
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+    const double d0 = m_scale;
+    double d;
+    Vec3<double> pts[8];
+    Vec3<double> pt;
+    Voxel voxel;
+    size_t sp = 0;
+    size_t sn = 0;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        voxel = m_voxels[v];
+        pt = GetPoint(voxel);
+        d = plane.m_a * pt[0] + plane.m_b * pt[1] + plane.m_c * pt[2] + plane.m_d;
+        //            if      (d >= 0.0 && d <= d0) positivePts->PushBack(pt);
+        //            else if (d < 0.0 && -d <= d0) negativePts->PushBack(pt);
+        if (d >= 0.0) {
+            if (d <= d0) {
+                GetPoints(voxel, pts);
+                for (int32_t k = 0; k < 8; ++k) {
+                    positivePts->PushBack(pts[k]);
+                }
+            }
+            else {
+                if (++sp == sampling) {
+                    //                        positivePts->PushBack(pt);
+                    GetPoints(voxel, pts);
+                    for (int32_t k = 0; k < 8; ++k) {
+                        positivePts->PushBack(pts[k]);
+                    }
+                    sp = 0;
+                }
+            }
+        }
+        else {
+            if (-d <= d0) {
+                GetPoints(voxel, pts);
+                for (int32_t k = 0; k < 8; ++k) {
+                    negativePts->PushBack(pts[k]);
+                }
+            }
+            else {
+                if (++sn == sampling) {
+                    //                        negativePts->PushBack(pt);
+                    GetPoints(voxel, pts);
+                    for (int32_t k = 0; k < 8; ++k) {
+                        negativePts->PushBack(pts[k]);
+                    }
+                    sn = 0;
+                }
+            }
+        }
+    }
+}
+void VoxelSet::ComputeExteriorPoints(const Plane& plane,
+    const Mesh& mesh,
+    SArray<Vec3<double> >* const exteriorPts) const
+{
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+    double d;
+    Vec3<double> pt;
+    Vec3<double> pts[8];
+    Voxel voxel;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        voxel = m_voxels[v];
+        pt = GetPoint(voxel);
+        d = plane.m_a * pt[0] + plane.m_b * pt[1] + plane.m_c * pt[2] + plane.m_d;
+        if (d >= 0.0) {
+            if (!mesh.IsInside(pt)) {
+                GetPoints(voxel, pts);
+                for (int32_t k = 0; k < 8; ++k) {
+                    exteriorPts->PushBack(pts[k]);
+                }
+            }
+        }
+    }
+}
+void VoxelSet::ComputeClippedVolumes(const Plane& plane,
+    double& positiveVolume,
+    double& negativeVolume) const
+{
+    negativeVolume = 0.0;
+    positiveVolume = 0.0;
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+    double d;
+    Vec3<double> pt;
+    size_t nPositiveVoxels = 0;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        pt = GetPoint(m_voxels[v]);
+        d = plane.m_a * pt[0] + plane.m_b * pt[1] + plane.m_c * pt[2] + plane.m_d;
+        nPositiveVoxels += (d >= 0.0);
+    }
+    size_t nNegativeVoxels = nVoxels - nPositiveVoxels;
+    positiveVolume = m_unitVolume * nPositiveVoxels;
+    negativeVolume = m_unitVolume * nNegativeVoxels;
+}
+void VoxelSet::SelectOnSurface(PrimitiveSet* const onSurfP) const
+{
+    VoxelSet* const onSurf = (VoxelSet*)onSurfP;
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+
+    for (int32_t h = 0; h < 3; ++h) {
+        onSurf->m_minBB[h] = m_minBB[h];
+    }
+    onSurf->m_voxels.Resize(0);
+    onSurf->m_scale = m_scale;
+    onSurf->m_unitVolume = m_unitVolume;
+    onSurf->m_numVoxelsOnSurface = 0;
+    onSurf->m_numVoxelsInsideSurface = 0;
+    Voxel voxel;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        voxel = m_voxels[v];
+        if (voxel.m_data == PRIMITIVE_ON_SURFACE) {
+            onSurf->m_voxels.PushBack(voxel);
+            ++onSurf->m_numVoxelsOnSurface;
+        }
+    }
+}
+void VoxelSet::Clip(const Plane& plane,
+    PrimitiveSet* const positivePartP,
+    PrimitiveSet* const negativePartP) const
+{
+    VoxelSet* const positivePart = (VoxelSet*)positivePartP;
+    VoxelSet* const negativePart = (VoxelSet*)negativePartP;
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+
+    for (int32_t h = 0; h < 3; ++h) {
+        negativePart->m_minBB[h] = positivePart->m_minBB[h] = m_minBB[h];
+    }
+    positivePart->m_voxels.Resize(0);
+    negativePart->m_voxels.Resize(0);
+    positivePart->m_voxels.Allocate(nVoxels);
+    negativePart->m_voxels.Allocate(nVoxels);
+    negativePart->m_scale = positivePart->m_scale = m_scale;
+    negativePart->m_unitVolume = positivePart->m_unitVolume = m_unitVolume;
+    negativePart->m_numVoxelsOnSurface = positivePart->m_numVoxelsOnSurface = 0;
+    negativePart->m_numVoxelsInsideSurface = positivePart->m_numVoxelsInsideSurface = 0;
+
+    double d;
+    Vec3<double> pt;
+    Voxel voxel;
+    const double d0 = m_scale;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        voxel = m_voxels[v];
+        pt = GetPoint(voxel);
+        d = plane.m_a * pt[0] + plane.m_b * pt[1] + plane.m_c * pt[2] + plane.m_d;
+        if (d >= 0.0) {
+            if (voxel.m_data == PRIMITIVE_ON_SURFACE || d <= d0) {
+                voxel.m_data = PRIMITIVE_ON_SURFACE;
+                positivePart->m_voxels.PushBack(voxel);
+                ++positivePart->m_numVoxelsOnSurface;
+            }
+            else {
+                positivePart->m_voxels.PushBack(voxel);
+                ++positivePart->m_numVoxelsInsideSurface;
+            }
+        }
+        else {
+            if (voxel.m_data == PRIMITIVE_ON_SURFACE || -d <= d0) {
+                voxel.m_data = PRIMITIVE_ON_SURFACE;
+                negativePart->m_voxels.PushBack(voxel);
+                ++negativePart->m_numVoxelsOnSurface;
+            }
+            else {
+                negativePart->m_voxels.PushBack(voxel);
+                ++negativePart->m_numVoxelsInsideSurface;
+            }
+        }
+    }
+}
+void VoxelSet::Convert(Mesh& mesh, const VOXEL_VALUE value) const
+{
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+    Voxel voxel;
+    Vec3<double> pts[8];
+    for (size_t v = 0; v < nVoxels; ++v) {
+        voxel = m_voxels[v];
+        if (voxel.m_data == value) {
+            GetPoints(voxel, pts);
+            int32_t s = (int32_t)mesh.GetNPoints();
+            for (int32_t k = 0; k < 8; ++k) {
+                mesh.AddPoint(pts[k]);
+            }
+            mesh.AddTriangle(Vec3<int32_t>(s + 0, s + 2, s + 1));
+            mesh.AddTriangle(Vec3<int32_t>(s + 0, s + 3, s + 2));
+            mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 5, s + 6));
+            mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 6, s + 7));
+            mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 6, s + 2));
+            mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 2, s + 3));
+            mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 1, s + 5));
+            mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 0, s + 1));
+            mesh.AddTriangle(Vec3<int32_t>(s + 6, s + 5, s + 1));
+            mesh.AddTriangle(Vec3<int32_t>(s + 6, s + 1, s + 2));
+            mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 0, s + 4));
+            mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 3, s + 0));
+        }
+    }
+}
+void VoxelSet::ComputePrincipalAxes()
+{
+    const size_t nVoxels = m_voxels.Size();
+    if (nVoxels == 0)
+        return;
+    m_barycenterPCA[0] = m_barycenterPCA[1] = m_barycenterPCA[2] = 0.0;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        Voxel& voxel = m_voxels[v];
+        m_barycenterPCA[0] += voxel.m_coord[0];
+        m_barycenterPCA[1] += voxel.m_coord[1];
+        m_barycenterPCA[2] += voxel.m_coord[2];
+    }
+    m_barycenterPCA /= (double)nVoxels;
+
+    double covMat[3][3] = { { 0.0, 0.0, 0.0 },
+        { 0.0, 0.0, 0.0 },
+        { 0.0, 0.0, 0.0 } };
+    double x, y, z;
+    for (size_t v = 0; v < nVoxels; ++v) {
+        Voxel& voxel = m_voxels[v];
+        x = voxel.m_coord[0] - m_barycenter[0];
+        y = voxel.m_coord[1] - m_barycenter[1];
+        z = voxel.m_coord[2] - m_barycenter[2];
+        covMat[0][0] += x * x;
+        covMat[1][1] += y * y;
+        covMat[2][2] += z * z;
+        covMat[0][1] += x * y;
+        covMat[0][2] += x * z;
+        covMat[1][2] += y * z;
+    }
+    covMat[0][0] /= nVoxels;
+    covMat[1][1] /= nVoxels;
+    covMat[2][2] /= nVoxels;
+    covMat[0][1] /= nVoxels;
+    covMat[0][2] /= nVoxels;
+    covMat[1][2] /= nVoxels;
+    covMat[1][0] = covMat[0][1];
+    covMat[2][0] = covMat[0][2];
+    covMat[2][1] = covMat[1][2];
+    Diagonalize(covMat, m_Q, m_D);
+}
+Volume::Volume()
+{
+    m_dim[0] = m_dim[1] = m_dim[2] = 0;
+    m_minBB[0] = m_minBB[1] = m_minBB[2] = 0.0;
+    m_maxBB[0] = m_maxBB[1] = m_maxBB[2] = 1.0;
+    m_numVoxelsOnSurface = 0;
+    m_numVoxelsInsideSurface = 0;
+    m_numVoxelsOutsideSurface = 0;
+    m_scale = 1.0;
+    m_data = 0;
+}
+Volume::~Volume(void)
+{
+    delete[] m_data;
+}
+void Volume::Allocate()
+{
+    delete[] m_data;
+    size_t size = m_dim[0] * m_dim[1] * m_dim[2];
+    m_data = new unsigned char[size];
+    memset(m_data, PRIMITIVE_UNDEFINED, sizeof(unsigned char) * size);
+}
+void Volume::Free()
+{
+    delete[] m_data;
+    m_data = 0;
+}
+void Volume::FillOutsideSurface(const size_t i0,
+    const size_t j0,
+    const size_t k0,
+    const size_t i1,
+    const size_t j1,
+    const size_t k1)
+{
+    const short neighbours[6][3] = { { 1, 0, 0 },
+        { 0, 1, 0 },
+        { 0, 0, 1 },
+        { -1, 0, 0 },
+        { 0, -1, 0 },
+        { 0, 0, -1 } };
+    std::queue<Vec3<short> > fifo;
+    Vec3<short> current;
+    short a, b, c;
+    for (size_t i = i0; i < i1; ++i) {
+        for (size_t j = j0; j < j1; ++j) {
+            for (size_t k = k0; k < k1; ++k) {
+
+                if (GetVoxel(i, j, k) == PRIMITIVE_UNDEFINED) {
+                    current[0] = (short)i;
+                    current[1] = (short)j;
+                    current[2] = (short)k;
+                    fifo.push(current);
+                    GetVoxel(current[0], current[1], current[2]) = PRIMITIVE_OUTSIDE_SURFACE;
+                    ++m_numVoxelsOutsideSurface;
+                    while (fifo.size() > 0) {
+                        current = fifo.front();
+                        fifo.pop();
+                        for (int32_t h = 0; h < 6; ++h) {
+                            a = current[0] + neighbours[h][0];
+                            b = current[1] + neighbours[h][1];
+                            c = current[2] + neighbours[h][2];
+                            if (a < 0 || a >= (int32_t)m_dim[0] || b < 0 || b >= (int32_t)m_dim[1] || c < 0 || c >= (int32_t)m_dim[2]) {
+                                continue;
+                            }
+                            unsigned char& v = GetVoxel(a, b, c);
+                            if (v == PRIMITIVE_UNDEFINED) {
+                                v = PRIMITIVE_OUTSIDE_SURFACE;
+                                ++m_numVoxelsOutsideSurface;
+                                fifo.push(Vec3<short>(a, b, c));
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+void Volume::FillInsideSurface()
+{
+    const size_t i0 = m_dim[0];
+    const size_t j0 = m_dim[1];
+    const size_t k0 = m_dim[2];
+    for (size_t i = 0; i < i0; ++i) {
+        for (size_t j = 0; j < j0; ++j) {
+            for (size_t k = 0; k < k0; ++k) {
+                unsigned char& v = GetVoxel(i, j, k);
+                if (v == PRIMITIVE_UNDEFINED) {
+                    v = PRIMITIVE_INSIDE_SURFACE;
+                    ++m_numVoxelsInsideSurface;
+                }
+            }
+        }
+    }
+}
+void Volume::Convert(Mesh& mesh, const VOXEL_VALUE value) const
+{
+    const size_t i0 = m_dim[0];
+    const size_t j0 = m_dim[1];
+    const size_t k0 = m_dim[2];
+    for (size_t i = 0; i < i0; ++i) {
+        for (size_t j = 0; j < j0; ++j) {
+            for (size_t k = 0; k < k0; ++k) {
+                const unsigned char& voxel = GetVoxel(i, j, k);
+                if (voxel == value) {
+                    Vec3<double> p0((i - 0.5) * m_scale, (j - 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p1((i + 0.5) * m_scale, (j - 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p2((i + 0.5) * m_scale, (j + 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p3((i - 0.5) * m_scale, (j + 0.5) * m_scale, (k - 0.5) * m_scale);
+                    Vec3<double> p4((i - 0.5) * m_scale, (j - 0.5) * m_scale, (k + 0.5) * m_scale);
+                    Vec3<double> p5((i + 0.5) * m_scale, (j - 0.5) * m_scale, (k + 0.5) * m_scale);
+                    Vec3<double> p6((i + 0.5) * m_scale, (j + 0.5) * m_scale, (k + 0.5) * m_scale);
+                    Vec3<double> p7((i - 0.5) * m_scale, (j + 0.5) * m_scale, (k + 0.5) * m_scale);
+                    int32_t s = (int32_t)mesh.GetNPoints();
+                    mesh.AddPoint(p0 + m_minBB);
+                    mesh.AddPoint(p1 + m_minBB);
+                    mesh.AddPoint(p2 + m_minBB);
+                    mesh.AddPoint(p3 + m_minBB);
+                    mesh.AddPoint(p4 + m_minBB);
+                    mesh.AddPoint(p5 + m_minBB);
+                    mesh.AddPoint(p6 + m_minBB);
+                    mesh.AddPoint(p7 + m_minBB);
+                    mesh.AddTriangle(Vec3<int32_t>(s + 0, s + 2, s + 1));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 0, s + 3, s + 2));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 5, s + 6));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 6, s + 7));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 6, s + 2));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 2, s + 3));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 1, s + 5));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 4, s + 0, s + 1));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 6, s + 5, s + 1));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 6, s + 1, s + 2));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 0, s + 4));
+                    mesh.AddTriangle(Vec3<int32_t>(s + 7, s + 3, s + 0));
+                }
+            }
+        }
+    }
+}
+void Volume::Convert(VoxelSet& vset) const
+{
+    for (int32_t h = 0; h < 3; ++h) {
+        vset.m_minBB[h] = m_minBB[h];
+    }
+    vset.m_voxels.Allocate(m_numVoxelsInsideSurface + m_numVoxelsOnSurface);
+    vset.m_scale = m_scale;
+    vset.m_unitVolume = m_scale * m_scale * m_scale;
+    const short i0 = (short)m_dim[0];
+    const short j0 = (short)m_dim[1];
+    const short k0 = (short)m_dim[2];
+    Voxel voxel;
+    vset.m_numVoxelsOnSurface = 0;
+    vset.m_numVoxelsInsideSurface = 0;
+    for (short i = 0; i < i0; ++i) {
+        for (short j = 0; j < j0; ++j) {
+            for (short k = 0; k < k0; ++k) {
+                const unsigned char& value = GetVoxel(i, j, k);
+                if (value == PRIMITIVE_INSIDE_SURFACE) {
+                    voxel.m_coord[0] = i;
+                    voxel.m_coord[1] = j;
+                    voxel.m_coord[2] = k;
+                    voxel.m_data = PRIMITIVE_INSIDE_SURFACE;
+                    vset.m_voxels.PushBack(voxel);
+                    ++vset.m_numVoxelsInsideSurface;
+                }
+                else if (value == PRIMITIVE_ON_SURFACE) {
+                    voxel.m_coord[0] = i;
+                    voxel.m_coord[1] = j;
+                    voxel.m_coord[2] = k;
+                    voxel.m_data = PRIMITIVE_ON_SURFACE;
+                    vset.m_voxels.PushBack(voxel);
+                    ++vset.m_numVoxelsOnSurface;
+                }
+            }
+        }
+    }
+}
+
+void Volume::Convert(TetrahedronSet& tset) const
+{
+    tset.m_tetrahedra.Allocate(5 * (m_numVoxelsInsideSurface + m_numVoxelsOnSurface));
+    tset.m_scale = m_scale;
+    const short i0 = (short)m_dim[0];
+    const short j0 = (short)m_dim[1];
+    const short k0 = (short)m_dim[2];
+    tset.m_numTetrahedraOnSurface = 0;
+    tset.m_numTetrahedraInsideSurface = 0;
+    Tetrahedron tetrahedron;
+    for (short i = 0; i < i0; ++i) {
+        for (short j = 0; j < j0; ++j) {
+            for (short k = 0; k < k0; ++k) {
+                const unsigned char& value = GetVoxel(i, j, k);
+                if (value == PRIMITIVE_INSIDE_SURFACE || value == PRIMITIVE_ON_SURFACE) {
+                    tetrahedron.m_data = value;
+                    Vec3<double> p1((i - 0.5) * m_scale + m_minBB[0], (j - 0.5) * m_scale + m_minBB[1], (k - 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p2((i + 0.5) * m_scale + m_minBB[0], (j - 0.5) * m_scale + m_minBB[1], (k - 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p3((i + 0.5) * m_scale + m_minBB[0], (j + 0.5) * m_scale + m_minBB[1], (k - 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p4((i - 0.5) * m_scale + m_minBB[0], (j + 0.5) * m_scale + m_minBB[1], (k - 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p5((i - 0.5) * m_scale + m_minBB[0], (j - 0.5) * m_scale + m_minBB[1], (k + 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p6((i + 0.5) * m_scale + m_minBB[0], (j - 0.5) * m_scale + m_minBB[1], (k + 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p7((i + 0.5) * m_scale + m_minBB[0], (j + 0.5) * m_scale + m_minBB[1], (k + 0.5) * m_scale + m_minBB[2]);
+                    Vec3<double> p8((i - 0.5) * m_scale + m_minBB[0], (j + 0.5) * m_scale + m_minBB[1], (k + 0.5) * m_scale + m_minBB[2]);
+
+                    tetrahedron.m_pts[0] = p2;
+                    tetrahedron.m_pts[1] = p4;
+                    tetrahedron.m_pts[2] = p7;
+                    tetrahedron.m_pts[3] = p5;
+                    tset.m_tetrahedra.PushBack(tetrahedron);
+
+                    tetrahedron.m_pts[0] = p6;
+                    tetrahedron.m_pts[1] = p2;
+                    tetrahedron.m_pts[2] = p7;
+                    tetrahedron.m_pts[3] = p5;
+                    tset.m_tetrahedra.PushBack(tetrahedron);
+
+                    tetrahedron.m_pts[0] = p3;
+                    tetrahedron.m_pts[1] = p4;
+                    tetrahedron.m_pts[2] = p7;
+                    tetrahedron.m_pts[3] = p2;
+                    tset.m_tetrahedra.PushBack(tetrahedron);
+
+                    tetrahedron.m_pts[0] = p1;
+                    tetrahedron.m_pts[1] = p4;
+                    tetrahedron.m_pts[2] = p2;
+                    tetrahedron.m_pts[3] = p5;
+                    tset.m_tetrahedra.PushBack(tetrahedron);
+
+                    tetrahedron.m_pts[0] = p8;
+                    tetrahedron.m_pts[1] = p5;
+                    tetrahedron.m_pts[2] = p7;
+                    tetrahedron.m_pts[3] = p4;
+                    tset.m_tetrahedra.PushBack(tetrahedron);
+                    if (value == PRIMITIVE_INSIDE_SURFACE) {
+                        tset.m_numTetrahedraInsideSurface += 5;
+                    }
+                    else {
+                        tset.m_numTetrahedraOnSurface += 5;
+                    }
+                }
+            }
+        }
+    }
+}
+
+void Volume::AlignToPrincipalAxes(double (&rot)[3][3]) const
+{
+    const short i0 = (short)m_dim[0];
+    const short j0 = (short)m_dim[1];
+    const short k0 = (short)m_dim[2];
+    Vec3<double> barycenter(0.0);
+    size_t nVoxels = 0;
+    for (short i = 0; i < i0; ++i) {
+        for (short j = 0; j < j0; ++j) {
+            for (short k = 0; k < k0; ++k) {
+                const unsigned char& value = GetVoxel(i, j, k);
+                if (value == PRIMITIVE_INSIDE_SURFACE || value == PRIMITIVE_ON_SURFACE) {
+                    barycenter[0] += i;
+                    barycenter[1] += j;
+                    barycenter[2] += k;
+                    ++nVoxels;
+                }
+            }
+        }
+    }
+    barycenter /= (double)nVoxels;
+
+    double covMat[3][3] = { { 0.0, 0.0, 0.0 },
+        { 0.0, 0.0, 0.0 },
+        { 0.0, 0.0, 0.0 } };
+    double x, y, z;
+    for (short i = 0; i < i0; ++i) {
+        for (short j = 0; j < j0; ++j) {
+            for (short k = 0; k < k0; ++k) {
+                const unsigned char& value = GetVoxel(i, j, k);
+                if (value == PRIMITIVE_INSIDE_SURFACE || value == PRIMITIVE_ON_SURFACE) {
+                    x = i - barycenter[0];
+                    y = j - barycenter[1];
+                    z = k - barycenter[2];
+                    covMat[0][0] += x * x;
+                    covMat[1][1] += y * y;
+                    covMat[2][2] += z * z;
+                    covMat[0][1] += x * y;
+                    covMat[0][2] += x * z;
+                    covMat[1][2] += y * z;
+                }
+            }
+        }
+    }
+    covMat[1][0] = covMat[0][1];
+    covMat[2][0] = covMat[0][2];
+    covMat[2][1] = covMat[1][2];
+    double D[3][3];
+    Diagonalize(covMat, rot, D);
+}
+TetrahedronSet::TetrahedronSet()
+{
+    m_minBB[0] = m_minBB[1] = m_minBB[2] = 0.0;
+    m_maxBB[0] = m_maxBB[1] = m_maxBB[2] = 1.0;
+    m_barycenter[0] = m_barycenter[1] = m_barycenter[2] = 0.0;
+    m_scale = 1.0;
+    m_numTetrahedraOnSurface = 0;
+    m_numTetrahedraInsideSurface = 0;
+    memset(m_Q, 0, sizeof(double) * 9);
+    memset(m_D, 0, sizeof(double) * 9);
+}
+TetrahedronSet::~TetrahedronSet(void)
+{
+}
+void TetrahedronSet::ComputeBB()
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+
+    for (int32_t h = 0; h < 3; ++h) {
+        m_minBB[h] = m_maxBB[h] = m_tetrahedra[0].m_pts[0][h];
+        m_barycenter[h] = 0.0;
+    }
+    for (size_t p = 0; p < nTetrahedra; ++p) {
+        for (int32_t i = 0; i < 4; ++i) {
+            for (int32_t h = 0; h < 3; ++h) {
+                if (m_minBB[h] > m_tetrahedra[p].m_pts[i][h])
+                    m_minBB[h] = m_tetrahedra[p].m_pts[i][h];
+                if (m_maxBB[h] < m_tetrahedra[p].m_pts[i][h])
+                    m_maxBB[h] = m_tetrahedra[p].m_pts[i][h];
+                m_barycenter[h] += m_tetrahedra[p].m_pts[i][h];
+            }
+        }
+    }
+    m_barycenter /= (double)(4 * nTetrahedra);
+}
+void TetrahedronSet::ComputeConvexHull(Mesh& meshCH, const size_t sampling) const
+{
+    const size_t CLUSTER_SIZE = 65536;
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+
+    SArray<Vec3<double> > cpoints;
+
+    Vec3<double>* points = new Vec3<double>[CLUSTER_SIZE];
+    size_t p = 0;
+    while (p < nTetrahedra) {
+        size_t q = 0;
+        size_t s = 0;
+        while (q < CLUSTER_SIZE && p < nTetrahedra) {
+            if (m_tetrahedra[p].m_data == PRIMITIVE_ON_SURFACE) {
+                ++s;
+                if (s == sampling) {
+                    s = 0;
+                    for (int32_t a = 0; a < 4; ++a) {
+                        points[q++] = m_tetrahedra[p].m_pts[a];
+                        for (int32_t xx = 0; xx < 3; ++xx) {
+                            assert(m_tetrahedra[p].m_pts[a][xx] + EPS >= m_minBB[xx]);
+                            assert(m_tetrahedra[p].m_pts[a][xx] <= m_maxBB[xx] + EPS);
+                        }
+                    }
+                }
+            }
+            ++p;
+        }
+        btConvexHullComputer ch;
+        ch.compute((double*)points, 3 * sizeof(double), (int32_t)q, -1.0, -1.0);
+        for (int32_t v = 0; v < ch.vertices.size(); v++) {
+            cpoints.PushBack(Vec3<double>(ch.vertices[v].getX(), ch.vertices[v].getY(), ch.vertices[v].getZ()));
+        }
+    }
+    delete[] points;
+
+    points = cpoints.Data();
+    btConvexHullComputer ch;
+    ch.compute((double*)points, 3 * sizeof(double), (int32_t)cpoints.Size(), -1.0, -1.0);
+    meshCH.ResizePoints(0);
+    meshCH.ResizeTriangles(0);
+    for (int32_t v = 0; v < ch.vertices.size(); v++) {
+        meshCH.AddPoint(Vec3<double>(ch.vertices[v].getX(), ch.vertices[v].getY(), ch.vertices[v].getZ()));
+    }
+    const int32_t nt = ch.faces.size();
+    for (int32_t t = 0; t < nt; ++t) {
+        const btConvexHullComputer::Edge* sourceEdge = &(ch.edges[ch.faces[t]]);
+        int32_t a = sourceEdge->getSourceVertex();
+        int32_t b = sourceEdge->getTargetVertex();
+        const btConvexHullComputer::Edge* edge = sourceEdge->getNextEdgeOfFace();
+        int32_t c = edge->getTargetVertex();
+        while (c != a) {
+            meshCH.AddTriangle(Vec3<int32_t>(a, b, c));
+            edge = edge->getNextEdgeOfFace();
+            b = c;
+            c = edge->getTargetVertex();
+        }
+    }
+}
+inline bool TetrahedronSet::Add(Tetrahedron& tetrahedron)
+{
+    double v = ComputeVolume4(tetrahedron.m_pts[0], tetrahedron.m_pts[1], tetrahedron.m_pts[2], tetrahedron.m_pts[3]);
+
+    const double EPS = 0.0000000001;
+    if (fabs(v) < EPS) {
+        return false;
+    }
+    else if (v < 0.0) {
+        Vec3<double> tmp = tetrahedron.m_pts[0];
+        tetrahedron.m_pts[0] = tetrahedron.m_pts[1];
+        tetrahedron.m_pts[1] = tmp;
+    }
+
+    for (int32_t a = 0; a < 4; ++a) {
+        for (int32_t xx = 0; xx < 3; ++xx) {
+            assert(tetrahedron.m_pts[a][xx] + EPS >= m_minBB[xx]);
+            assert(tetrahedron.m_pts[a][xx] <= m_maxBB[xx] + EPS);
+        }
+    }
+    m_tetrahedra.PushBack(tetrahedron);
+    return true;
+}
+
+void TetrahedronSet::AddClippedTetrahedra(const Vec3<double> (&pts)[10], const int32_t nPts)
+{
+    const int32_t tetF[4][3] = { { 0, 1, 2 }, { 2, 1, 3 }, { 3, 1, 0 }, { 3, 0, 2 } };
+    if (nPts < 4) {
+        return;
+    }
+    else if (nPts == 4) {
+        Tetrahedron tetrahedron;
+        tetrahedron.m_data = PRIMITIVE_ON_SURFACE;
+        tetrahedron.m_pts[0] = pts[0];
+        tetrahedron.m_pts[1] = pts[1];
+        tetrahedron.m_pts[2] = pts[2];
+        tetrahedron.m_pts[3] = pts[3];
+        if (Add(tetrahedron)) {
+            ++m_numTetrahedraOnSurface;
+        }
+    }
+    else if (nPts == 5) {
+        const int32_t tet[15][4] = {
+            { 0, 1, 2, 3 }, { 1, 2, 3, 4 }, { 0, 2, 3, 4 }, { 0, 1, 3, 4 }, { 0, 1, 2, 4 },
+        };
+        const int32_t rem[5] = { 4, 0, 1, 2, 3 };
+        double maxVol = 0.0;
+        int32_t h0 = -1;
+        Tetrahedron tetrahedron0;
+        tetrahedron0.m_data = PRIMITIVE_ON_SURFACE;
+        for (int32_t h = 0; h < 5; ++h) {
+            double v = ComputeVolume4(pts[tet[h][0]], pts[tet[h][1]], pts[tet[h][2]], pts[tet[h][3]]);
+            if (v > maxVol) {
+                h0 = h;
+                tetrahedron0.m_pts[0] = pts[tet[h][0]];
+                tetrahedron0.m_pts[1] = pts[tet[h][1]];
+                tetrahedron0.m_pts[2] = pts[tet[h][2]];
+                tetrahedron0.m_pts[3] = pts[tet[h][3]];
+                maxVol = v;
+            }
+            else if (-v > maxVol) {
+                h0 = h;
+                tetrahedron0.m_pts[0] = pts[tet[h][1]];
+                tetrahedron0.m_pts[1] = pts[tet[h][0]];
+                tetrahedron0.m_pts[2] = pts[tet[h][2]];
+                tetrahedron0.m_pts[3] = pts[tet[h][3]];
+                maxVol = -v;
+            }
+        }
+        if (h0 == -1)
+            return;
+        if (Add(tetrahedron0)) {
+            ++m_numTetrahedraOnSurface;
+        }
+        else {
+            return;
+        }
+        int32_t a = rem[h0];
+        maxVol = 0.0;
+        int32_t h1 = -1;
+        Tetrahedron tetrahedron1;
+        tetrahedron1.m_data = PRIMITIVE_ON_SURFACE;
+        for (int32_t h = 0; h < 4; ++h) {
+            double v = ComputeVolume4(pts[a], tetrahedron0.m_pts[tetF[h][0]], tetrahedron0.m_pts[tetF[h][1]], tetrahedron0.m_pts[tetF[h][2]]);
+            if (v > maxVol) {
+                h1 = h;
+                tetrahedron1.m_pts[0] = pts[a];
+                tetrahedron1.m_pts[1] = tetrahedron0.m_pts[tetF[h][0]];
+                tetrahedron1.m_pts[2] = tetrahedron0.m_pts[tetF[h][1]];
+                tetrahedron1.m_pts[3] = tetrahedron0.m_pts[tetF[h][2]];
+                maxVol = v;
+            }
+        }
+        if (h1 == -1 && Add(tetrahedron1)) {
+            ++m_numTetrahedraOnSurface;
+        }
+    }
+    else if (nPts == 6) {
+
+        const int32_t tet[15][4] = { { 2, 3, 4, 5 }, { 1, 3, 4, 5 }, { 1, 2, 4, 5 }, { 1, 2, 3, 5 }, { 1, 2, 3, 4 },
+            { 0, 3, 4, 5 }, { 0, 2, 4, 5 }, { 0, 2, 3, 5 }, { 0, 2, 3, 4 }, { 0, 1, 4, 5 },
+            { 0, 1, 3, 5 }, { 0, 1, 3, 4 }, { 0, 1, 2, 5 }, { 0, 1, 2, 4 }, { 0, 1, 2, 3 } };
+        const int32_t rem[15][2] = { { 0, 1 }, { 0, 2 }, { 0, 3 }, { 0, 4 }, { 0, 5 },
+            { 1, 2 }, { 1, 3 }, { 1, 4 }, { 1, 5 }, { 2, 3 },
+            { 2, 4 }, { 2, 5 }, { 3, 4 }, { 3, 5 }, { 4, 5 } };
+        double maxVol = 0.0;
+        int32_t h0 = -1;
+        Tetrahedron tetrahedron0;
+        tetrahedron0.m_data = PRIMITIVE_ON_SURFACE;
+        for (int32_t h = 0; h < 15; ++h) {
+            double v = ComputeVolume4(pts[tet[h][0]], pts[tet[h][1]], pts[tet[h][2]], pts[tet[h][3]]);
+            if (v > maxVol) {
+                h0 = h;
+                tetrahedron0.m_pts[0] = pts[tet[h][0]];
+                tetrahedron0.m_pts[1] = pts[tet[h][1]];
+                tetrahedron0.m_pts[2] = pts[tet[h][2]];
+                tetrahedron0.m_pts[3] = pts[tet[h][3]];
+                maxVol = v;
+            }
+            else if (-v > maxVol) {
+                h0 = h;
+                tetrahedron0.m_pts[0] = pts[tet[h][1]];
+                tetrahedron0.m_pts[1] = pts[tet[h][0]];
+                tetrahedron0.m_pts[2] = pts[tet[h][2]];
+                tetrahedron0.m_pts[3] = pts[tet[h][3]];
+                maxVol = -v;
+            }
+        }
+        if (h0 == -1)
+            return;
+        if (Add(tetrahedron0)) {
+            ++m_numTetrahedraOnSurface;
+        }
+        else {
+            return;
+        }
+
+        int32_t a0 = rem[h0][0];
+        int32_t a1 = rem[h0][1];
+        int32_t h1 = -1;
+        Tetrahedron tetrahedron1;
+        tetrahedron1.m_data = PRIMITIVE_ON_SURFACE;
+        maxVol = 0.0;
+        for (int32_t h = 0; h < 4; ++h) {
+            double v = ComputeVolume4(pts[a0], tetrahedron0.m_pts[tetF[h][0]], tetrahedron0.m_pts[tetF[h][1]], tetrahedron0.m_pts[tetF[h][2]]);
+            if (v > maxVol) {
+                h1 = h;
+                tetrahedron1.m_pts[0] = pts[a0];
+                tetrahedron1.m_pts[1] = tetrahedron0.m_pts[tetF[h][0]];
+                tetrahedron1.m_pts[2] = tetrahedron0.m_pts[tetF[h][1]];
+                tetrahedron1.m_pts[3] = tetrahedron0.m_pts[tetF[h][2]];
+                maxVol = v;
+            }
+        }
+        if (h1 != -1 && Add(tetrahedron1)) {
+            ++m_numTetrahedraOnSurface;
+        }
+        else {
+            h1 = -1;
+        }
+        maxVol = 0.0;
+        int32_t h2 = -1;
+        Tetrahedron tetrahedron2;
+        tetrahedron2.m_data = PRIMITIVE_ON_SURFACE;
+        for (int32_t h = 0; h < 4; ++h) {
+            double v = ComputeVolume4(pts[a0], tetrahedron0.m_pts[tetF[h][0]], tetrahedron0.m_pts[tetF[h][1]], tetrahedron0.m_pts[tetF[h][2]]);
+            if (h == h1)
+                continue;
+            if (v > maxVol) {
+                h2 = h;
+                tetrahedron2.m_pts[0] = pts[a1];
+                tetrahedron2.m_pts[1] = tetrahedron0.m_pts[tetF[h][0]];
+                tetrahedron2.m_pts[2] = tetrahedron0.m_pts[tetF[h][1]];
+                tetrahedron2.m_pts[3] = tetrahedron0.m_pts[tetF[h][2]];
+                maxVol = v;
+            }
+        }
+        if (h1 != -1) {
+            for (int32_t h = 0; h < 4; ++h) {
+                double v = ComputeVolume4(pts[a1], tetrahedron1.m_pts[tetF[h][0]], tetrahedron1.m_pts[tetF[h][1]], tetrahedron1.m_pts[tetF[h][2]]);
+                if (h == 1)
+                    continue;
+                if (v > maxVol) {
+                    h2 = h;
+                    tetrahedron2.m_pts[0] = pts[a1];
+                    tetrahedron2.m_pts[1] = tetrahedron1.m_pts[tetF[h][0]];
+                    tetrahedron2.m_pts[2] = tetrahedron1.m_pts[tetF[h][1]];
+                    tetrahedron2.m_pts[3] = tetrahedron1.m_pts[tetF[h][2]];
+                    maxVol = v;
+                }
+            }
+        }
+        if (h2 != -1 && Add(tetrahedron2)) {
+            ++m_numTetrahedraOnSurface;
+        }
+    }
+    else {
+        assert(0);
+    }
+}
+
+void TetrahedronSet::Intersect(const Plane& plane,
+    SArray<Vec3<double> >* const positivePts,
+    SArray<Vec3<double> >* const negativePts,
+    const size_t sampling) const
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+}
+void TetrahedronSet::ComputeExteriorPoints(const Plane& plane,
+    const Mesh& mesh,
+    SArray<Vec3<double> >* const exteriorPts) const
+{
+}
+void TetrahedronSet::ComputeClippedVolumes(const Plane& plane,
+    double& positiveVolume,
+    double& negativeVolume) const
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+}
+
+void TetrahedronSet::SelectOnSurface(PrimitiveSet* const onSurfP) const
+{
+    TetrahedronSet* const onSurf = (TetrahedronSet*)onSurfP;
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+    onSurf->m_tetrahedra.Resize(0);
+    onSurf->m_scale = m_scale;
+    onSurf->m_numTetrahedraOnSurface = 0;
+    onSurf->m_numTetrahedraInsideSurface = 0;
+    onSurf->m_barycenter = m_barycenter;
+    onSurf->m_minBB = m_minBB;
+    onSurf->m_maxBB = m_maxBB;
+    for (int32_t i = 0; i < 3; ++i) {
+        for (int32_t j = 0; j < 3; ++j) {
+            onSurf->m_Q[i][j] = m_Q[i][j];
+            onSurf->m_D[i][j] = m_D[i][j];
+        }
+    }
+    Tetrahedron tetrahedron;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        tetrahedron = m_tetrahedra[v];
+        if (tetrahedron.m_data == PRIMITIVE_ON_SURFACE) {
+            onSurf->m_tetrahedra.PushBack(tetrahedron);
+            ++onSurf->m_numTetrahedraOnSurface;
+        }
+    }
+}
+void TetrahedronSet::Clip(const Plane& plane,
+    PrimitiveSet* const positivePartP,
+    PrimitiveSet* const negativePartP) const
+{
+    TetrahedronSet* const positivePart = (TetrahedronSet*)positivePartP;
+    TetrahedronSet* const negativePart = (TetrahedronSet*)negativePartP;
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+    positivePart->m_tetrahedra.Resize(0);
+    negativePart->m_tetrahedra.Resize(0);
+    positivePart->m_tetrahedra.Allocate(nTetrahedra);
+    negativePart->m_tetrahedra.Allocate(nTetrahedra);
+    negativePart->m_scale = positivePart->m_scale = m_scale;
+    negativePart->m_numTetrahedraOnSurface = positivePart->m_numTetrahedraOnSurface = 0;
+    negativePart->m_numTetrahedraInsideSurface = positivePart->m_numTetrahedraInsideSurface = 0;
+    negativePart->m_barycenter = m_barycenter;
+    positivePart->m_barycenter = m_barycenter;
+    negativePart->m_minBB = m_minBB;
+    positivePart->m_minBB = m_minBB;
+    negativePart->m_maxBB = m_maxBB;
+    positivePart->m_maxBB = m_maxBB;
+    for (int32_t i = 0; i < 3; ++i) {
+        for (int32_t j = 0; j < 3; ++j) {
+            negativePart->m_Q[i][j] = positivePart->m_Q[i][j] = m_Q[i][j];
+            negativePart->m_D[i][j] = positivePart->m_D[i][j] = m_D[i][j];
+        }
+    }
+
+    Tetrahedron tetrahedron;
+    double delta, alpha;
+    int32_t sign[4];
+    int32_t npos, nneg;
+    Vec3<double> posPts[10];
+    Vec3<double> negPts[10];
+    Vec3<double> P0, P1, M;
+    const Vec3<double> n(plane.m_a, plane.m_b, plane.m_c);
+    const int32_t edges[6][2] = { { 0, 1 }, { 0, 2 }, { 0, 3 }, { 1, 2 }, { 1, 3 }, { 2, 3 } };
+    double dist;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        tetrahedron = m_tetrahedra[v];
+        npos = nneg = 0;
+        for (int32_t i = 0; i < 4; ++i) {
+            dist = plane.m_a * tetrahedron.m_pts[i][0] + plane.m_b * tetrahedron.m_pts[i][1] + plane.m_c * tetrahedron.m_pts[i][2] + plane.m_d;
+            if (dist > 0.0) {
+                sign[i] = 1;
+                posPts[npos] = tetrahedron.m_pts[i];
+                ++npos;
+            }
+            else {
+                sign[i] = -1;
+                negPts[nneg] = tetrahedron.m_pts[i];
+                ++nneg;
+            }
+        }
+
+        if (npos == 4) {
+            positivePart->Add(tetrahedron);
+            if (tetrahedron.m_data == PRIMITIVE_ON_SURFACE) {
+                ++positivePart->m_numTetrahedraOnSurface;
+            }
+            else {
+                ++positivePart->m_numTetrahedraInsideSurface;
+            }
+        }
+        else if (nneg == 4) {
+            negativePart->Add(tetrahedron);
+            if (tetrahedron.m_data == PRIMITIVE_ON_SURFACE) {
+                ++negativePart->m_numTetrahedraOnSurface;
+            }
+            else {
+                ++negativePart->m_numTetrahedraInsideSurface;
+            }
+        }
+        else {
+            int32_t nnew = 0;
+            for (int32_t j = 0; j < 6; ++j) {
+                if (sign[edges[j][0]] * sign[edges[j][1]] == -1) {
+                    P0 = tetrahedron.m_pts[edges[j][0]];
+                    P1 = tetrahedron.m_pts[edges[j][1]];
+                    delta = (P0 - P1) * n;
+                    alpha = -(plane.m_d + (n * P1)) / delta;
+                    assert(alpha >= 0.0 && alpha <= 1.0);
+                    M = alpha * P0 + (1 - alpha) * P1;
+                    for (int32_t xx = 0; xx < 3; ++xx) {
+                        assert(M[xx] + EPS >= m_minBB[xx]);
+                        assert(M[xx] <= m_maxBB[xx] + EPS);
+                    }
+                    posPts[npos++] = M;
+                    negPts[nneg++] = M;
+                    ++nnew;
+                }
+            }
+            negativePart->AddClippedTetrahedra(negPts, nneg);
+            positivePart->AddClippedTetrahedra(posPts, npos);
+        }
+    }
+}
+void TetrahedronSet::Convert(Mesh& mesh, const VOXEL_VALUE value) const
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        const Tetrahedron& tetrahedron = m_tetrahedra[v];
+        if (tetrahedron.m_data == value) {
+            int32_t s = (int32_t)mesh.GetNPoints();
+            mesh.AddPoint(tetrahedron.m_pts[0]);
+            mesh.AddPoint(tetrahedron.m_pts[1]);
+            mesh.AddPoint(tetrahedron.m_pts[2]);
+            mesh.AddPoint(tetrahedron.m_pts[3]);
+            mesh.AddTriangle(Vec3<int32_t>(s + 0, s + 1, s + 2));
+            mesh.AddTriangle(Vec3<int32_t>(s + 2, s + 1, s + 3));
+            mesh.AddTriangle(Vec3<int32_t>(s + 3, s + 1, s + 0));
+            mesh.AddTriangle(Vec3<int32_t>(s + 3, s + 0, s + 2));
+        }
+    }
+}
+const double TetrahedronSet::ComputeVolume() const
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return 0.0;
+    double volume = 0.0;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        const Tetrahedron& tetrahedron = m_tetrahedra[v];
+        volume += fabs(ComputeVolume4(tetrahedron.m_pts[0], tetrahedron.m_pts[1], tetrahedron.m_pts[2], tetrahedron.m_pts[3]));
+    }
+    return volume / 6.0;
+}
+const double TetrahedronSet::ComputeMaxVolumeError() const
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return 0.0;
+    double volume = 0.0;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        const Tetrahedron& tetrahedron = m_tetrahedra[v];
+        if (tetrahedron.m_data == PRIMITIVE_ON_SURFACE) {
+            volume += fabs(ComputeVolume4(tetrahedron.m_pts[0], tetrahedron.m_pts[1], tetrahedron.m_pts[2], tetrahedron.m_pts[3]));
+        }
+    }
+    return volume / 6.0;
+}
+void TetrahedronSet::RevertAlignToPrincipalAxes()
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+    double x, y, z;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        Tetrahedron& tetrahedron = m_tetrahedra[v];
+        for (int32_t i = 0; i < 4; ++i) {
+            x = tetrahedron.m_pts[i][0] - m_barycenter[0];
+            y = tetrahedron.m_pts[i][1] - m_barycenter[1];
+            z = tetrahedron.m_pts[i][2] - m_barycenter[2];
+            tetrahedron.m_pts[i][0] = m_Q[0][0] * x + m_Q[0][1] * y + m_Q[0][2] * z + m_barycenter[0];
+            tetrahedron.m_pts[i][1] = m_Q[1][0] * x + m_Q[1][1] * y + m_Q[1][2] * z + m_barycenter[1];
+            tetrahedron.m_pts[i][2] = m_Q[2][0] * x + m_Q[2][1] * y + m_Q[2][2] * z + m_barycenter[2];
+        }
+    }
+    ComputeBB();
+}
+void TetrahedronSet::ComputePrincipalAxes()
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+    double covMat[3][3] = { { 0.0, 0.0, 0.0 },
+        { 0.0, 0.0, 0.0 },
+        { 0.0, 0.0, 0.0 } };
+    double x, y, z;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        Tetrahedron& tetrahedron = m_tetrahedra[v];
+        for (int32_t i = 0; i < 4; ++i) {
+            x = tetrahedron.m_pts[i][0] - m_barycenter[0];
+            y = tetrahedron.m_pts[i][1] - m_barycenter[1];
+            z = tetrahedron.m_pts[i][2] - m_barycenter[2];
+            covMat[0][0] += x * x;
+            covMat[1][1] += y * y;
+            covMat[2][2] += z * z;
+            covMat[0][1] += x * y;
+            covMat[0][2] += x * z;
+            covMat[1][2] += y * z;
+        }
+    }
+    double n = nTetrahedra * 4.0;
+    covMat[0][0] /= n;
+    covMat[1][1] /= n;
+    covMat[2][2] /= n;
+    covMat[0][1] /= n;
+    covMat[0][2] /= n;
+    covMat[1][2] /= n;
+    covMat[1][0] = covMat[0][1];
+    covMat[2][0] = covMat[0][2];
+    covMat[2][1] = covMat[1][2];
+    Diagonalize(covMat, m_Q, m_D);
+}
+void TetrahedronSet::AlignToPrincipalAxes()
+{
+    const size_t nTetrahedra = m_tetrahedra.Size();
+    if (nTetrahedra == 0)
+        return;
+    double x, y, z;
+    for (size_t v = 0; v < nTetrahedra; ++v) {
+        Tetrahedron& tetrahedron = m_tetrahedra[v];
+        for (int32_t i = 0; i < 4; ++i) {
+            x = tetrahedron.m_pts[i][0] - m_barycenter[0];
+            y = tetrahedron.m_pts[i][1] - m_barycenter[1];
+            z = tetrahedron.m_pts[i][2] - m_barycenter[2];
+            tetrahedron.m_pts[i][0] = m_Q[0][0] * x + m_Q[1][0] * y + m_Q[2][0] * z + m_barycenter[0];
+            tetrahedron.m_pts[i][1] = m_Q[0][1] * x + m_Q[1][1] * y + m_Q[2][1] * z + m_barycenter[1];
+            tetrahedron.m_pts[i][2] = m_Q[0][2] * x + m_Q[1][2] * y + m_Q[2][2] * z + m_barycenter[2];
+        }
+    }
+    ComputeBB();
+}
+}
diff --git a/thirdparty/thekla_atlas/LICENSE b/thirdparty/xatlas/LICENSE
index 164e7d3a2b..94d0c60485 100644
--- a/thirdparty/thekla_atlas/LICENSE
+++ b/thirdparty/xatlas/LICENSE
@@ -1,5 +1,11 @@
-Copyright (c) 2013 Thekla, Inc
+xatlas
+https://github.com/jpcy/xatlas
+Copyright (c) 2018 Jonathan Young
 
+thekla_atlas
+https://github.com/Thekla/thekla_atlas
+Copyright (c) 2013 Thekla, Inc
+Copyright NVIDIA Corporation 2006 -- Ignacio Castano <icastano@nvidia.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
diff --git a/thirdparty/xatlas/avoid-failing-on-bad-geometry.patch b/thirdparty/xatlas/avoid-failing-on-bad-geometry.patch
new file mode 100644
index 0000000000..a28cd9f82b
--- /dev/null
+++ b/thirdparty/xatlas/avoid-failing-on-bad-geometry.patch
@@ -0,0 +1,157 @@
+diff --git a/thirdparty/xatlas/xatlas.cpp b/thirdparty/xatlas/xatlas.cpp
+index df5ef94db..eb0824a51 100644
+--- a/thirdparty/xatlas/xatlas.cpp
++++ b/thirdparty/xatlas/xatlas.cpp
+@@ -1276,6 +1276,9 @@ class Vertex
+ {
+ public:
+ 	uint32_t id;
++	// -- GODOT start --
++	uint32_t original_id;
++	// -- GODOT end --
+ 	Edge *edge;
+ 	Vertex *next;
+ 	Vertex *prev;
+@@ -1283,7 +1286,10 @@ public:
+ 	Vector3 nor;
+ 	Vector2 tex;
+ 
+-	Vertex(uint32_t id) : id(id), edge(NULL), pos(0.0f), nor(0.0f), tex(0.0f)
++	// -- GODOT start --
++	//Vertex(uint32_t id) : id(id), edge(NULL), pos(0.0f), nor(0.0f), tex(0.0f)
++	Vertex(uint32_t id) : id(id), original_id(id), edge(NULL), pos(0.0f), nor(0.0f), tex(0.0f)
++	// -- GODOT end --
+ 	{
+ 		next = this;
+ 		prev = this;
+@@ -1934,6 +1940,64 @@ public:
+ 		return f;
+ 	}
+ 
++	// -- GODOT start --
++	Face *addUniqueFace(uint32_t v0, uint32_t v1, uint32_t v2) {
++
++		int base_vertex = m_vertexArray.size();
++
++		uint32_t ids[3] = { v0, v1, v2 };
++
++		Vector3 base[3] = {
++			m_vertexArray[v0]->pos,
++			m_vertexArray[v1]->pos,
++			m_vertexArray[v2]->pos,
++		};
++
++		//make sure its not a degenerate
++		bool degenerate = distanceSquared(base[0], base[1]) < NV_EPSILON || distanceSquared(base[0], base[2]) < NV_EPSILON || distanceSquared(base[1], base[2]) < NV_EPSILON;
++		xaDebugAssert(!degenerate);
++
++		float min_x = 0;
++
++		for (int i = 0; i < 3; i++) {
++			if (i == 0 || m_vertexArray[v0]->pos.x < min_x) {
++				min_x = m_vertexArray[v0]->pos.x;
++			}
++		}
++
++		float max_x = 0;
++
++		for (int j = 0; j < m_vertexArray.size(); j++) {
++			if (j == 0 || m_vertexArray[j]->pos.x > max_x) { //vertex already exists
++				max_x = m_vertexArray[j]->pos.x;
++			}
++		}
++
++		//separate from everything else, in x axis
++		for (int i = 0; i < 3; i++) {
++
++			base[i].x -= min_x;
++			base[i].x += max_x + 10.0;
++		}
++
++		for (int i = 0; i < 3; i++) {
++			Vertex *v = new Vertex(m_vertexArray.size());
++			v->pos = base[i];
++			v->nor = m_vertexArray[ids[i]]->nor,
++			v->tex = m_vertexArray[ids[i]]->tex,
++
++			v->original_id = ids[i];
++			m_vertexArray.push_back(v);
++		}
++
++		uint32_t indexArray[3];
++		indexArray[0] = base_vertex + 0;
++		indexArray[1] = base_vertex + 1;
++		indexArray[2] = base_vertex + 2;
++		return addFace(indexArray, 3, 0, 3);
++	}
++	// -- GODOT end --
++
+ 	// These functions disconnect the given element from the mesh and delete it.
+ 
+ 	// @@ We must always disconnect edge pairs simultaneously.
+@@ -2915,6 +2979,14 @@ Mesh *triangulate(const Mesh *inputMesh)
+ 					Vector2 p0 = polygonPoints[i0];
+ 					Vector2 p1 = polygonPoints[i1];
+ 					Vector2 p2 = polygonPoints[i2];
++
++					// -- GODOT start --
++					bool degenerate = distance(p0, p1) < NV_EPSILON || distance(p0, p2) < NV_EPSILON || distance(p1, p2) < NV_EPSILON;
++					if (degenerate) {
++						continue;
++					}
++					// -- GODOT end --
++
+ 					float d = clamp(dot(p0 - p1, p2 - p1) / (length(p0 - p1) * length(p2 - p1)), -1.0f, 1.0f);
+ 					float angle = acosf(d);
+ 					float area = triangleArea(p0, p1, p2);
+@@ -2938,6 +3010,11 @@ Mesh *triangulate(const Mesh *inputMesh)
+ 						}
+ 					}
+ 				}
++				// -- GODOT start --
++				if (!bestIsValid)
++					break;
++				// -- GODOT end --
++
+ 				xaDebugAssert(minAngle <= 2 * PI);
+ 				// Clip best ear:
+ 				uint32_t i0 = (bestEar + size - 1) % size;
+@@ -5606,7 +5683,10 @@ public:
+ 				}
+ 				if (chartMeshIndices[vertex->id] == ~0) {
+ 					chartMeshIndices[vertex->id] = m_chartMesh->vertexCount();
+-					m_chartToOriginalMap.push_back(vertex->id);
++					// -- GODOT start --
++					//m_chartToOriginalMap.push_back(vertex->id);
++					m_chartToOriginalMap.push_back(vertex->original_id);
++					// -- GODOT end --
+ 					m_chartToUnifiedMap.push_back(unifiedMeshIndices[unifiedVertex->id]);
+ 					halfedge::Vertex *v = m_chartMesh->addVertex(vertex->pos);
+ 					v->nor = vertex->nor;
+@@ -5699,7 +5779,10 @@ public:
+ 				const halfedge::Vertex *vertex = it.current()->vertex;
+ 				if (chartMeshIndices[vertex->id] == ~0) {
+ 					chartMeshIndices[vertex->id] = m_chartMesh->vertexCount();
+-					m_chartToOriginalMap.push_back(vertex->id);
++					// -- GODOT start --
++					//m_chartToOriginalMap.push_back(vertex->id);
++					m_chartToOriginalMap.push_back(vertex->original_id);
++					// -- GODOT end --
+ 					halfedge::Vertex *v = m_chartMesh->addVertex(vertex->pos);
+ 					v->nor = vertex->nor;
+ 					v->tex = vertex->tex; // @@ Not necessary.
+@@ -7573,6 +7656,14 @@ AddMeshError AddMesh(Atlas *atlas, const InputMesh &mesh, bool useColocalVertice
+ 			}
+ 		}
+ 		internal::halfedge::Face *face = heMesh->addFace(tri[0], tri[1], tri[2]);
++
++		// -- GODOT start --
++		if (!face && heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::AlreadyAddedEdge) {
++			//there is still hope for this, no reason to not add, at least add as separate
++			face = heMesh->addUniqueFace(tri[0], tri[1], tri[2]);
++		}
++		// -- GODOT end --
++
+ 		if (!face) {
+ 			if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::AlreadyAddedEdge)
+ 				error.code = AddMeshErrorCode::AlreadyAddedEdge;
diff --git a/thirdparty/xatlas/build-fix-limits.patch b/thirdparty/xatlas/build-fix-limits.patch
new file mode 100644
index 0000000000..00d07371c0
--- /dev/null
+++ b/thirdparty/xatlas/build-fix-limits.patch
@@ -0,0 +1,14 @@
+diff --git a/thirdparty/xatlas/xatlas.h b/thirdparty/xatlas/xatlas.h
+index 7e556c6c3..dbf8ca08c 100644
+--- a/thirdparty/xatlas/xatlas.h
++++ b/thirdparty/xatlas/xatlas.h
+@@ -3,6 +3,9 @@
+ #ifndef XATLAS_H
+ #define XATLAS_H
+ #include <float.h> // FLT_MAX
++// -- GODOT start --
++#include <limits.h> // INT_MAX, UINT_MAX
++// -- GODOT end --
+ 
+ namespace xatlas {
+ 
diff --git a/thirdparty/xatlas/xatlas.cpp b/thirdparty/xatlas/xatlas.cpp
index f6a9ce64dc..eb0824a517 100644
--- a/thirdparty/xatlas/xatlas.cpp
+++ b/thirdparty/xatlas/xatlas.cpp
@@ -1,5 +1,9 @@
 // This code is in the public domain -- castanyo@yahoo.es
-#include "xatlas.h"
+#include <algorithm>
+#include <cmath>
+#include <memory>
+#include <unordered_map>
+#include <vector>
 #include <assert.h>
 #include <float.h>
 #include <math.h>
@@ -8,29 +12,19 @@
 #include <stdio.h>
 #include <string.h>
 #include <time.h>
-#include <algorithm>
-#include <cmath>
-#include <memory>
-#include <unordered_map>
-#include <vector>
+#include "xatlas.h"
 
 #undef min
 #undef max
 
 #ifndef xaAssert
-#define xaAssert(exp)                                    \
-	if (!(exp)) {                                        \
-		xaPrint("%s %s %s\n", #exp, __FILE__, __LINE__); \
-	}
+#define xaAssert(exp) if (!(exp)) { xaPrint("%s %s %s\n", #exp, __FILE__, __LINE__); }
 #endif
 #ifndef xaDebugAssert
 #define xaDebugAssert(exp) assert(exp)
 #endif
 #ifndef xaPrint
-#define xaPrint(...)                            \
-	if (xatlas::internal::s_print) {            \
-		xatlas::internal::s_print(__VA_ARGS__); \
-	}
+#define xaPrint(...) if (xatlas::internal::s_print) { xatlas::internal::s_print(__VA_ARGS__); }
 #endif
 
 #ifdef _MSC_VER
@@ -43,87 +37,101 @@
 #define NV_FORCEINLINE __forceinline
 #else
 #define restrict __restrict__
-#define NV_FORCEINLINE __attribute__((always_inline)) inline
+#define NV_FORCEINLINE  __attribute__((always_inline)) inline
 #endif
 
-#define NV_UINT32_MAX 0xffffffff
-#define NV_FLOAT_MAX 3.402823466e+38F
+#define NV_UINT32_MAX   0xffffffff
+#define NV_FLOAT_MAX    3.402823466e+38F
 
 #ifndef PI
-#define PI float(3.1415926535897932384626433833)
+#define PI                  float(3.1415926535897932384626433833)
 #endif
 
-#define NV_EPSILON (0.0001f)
-#define NV_NORMAL_EPSILON (0.001f)
+#define NV_EPSILON          (0.0001f)
+#define NV_NORMAL_EPSILON   (0.001f)
 
 namespace xatlas {
 namespace internal {
 
 static PrintFunc s_print = NULL;
 
-static int align(int x, int a) {
+static int align(int x, int a)
+{
 	return (x + a - 1) & ~(a - 1);
 }
 
-static bool isAligned(int x, int a) {
+static bool isAligned(int x, int a)
+{
 	return (x & (a - 1)) == 0;
 }
 
 /// Return the maximum of the three arguments.
 template <typename T>
-static T max3(const T &a, const T &b, const T &c) {
+static T max3(const T &a, const T &b, const T &c)
+{
 	return std::max(a, std::max(b, c));
 }
 
 /// Return the maximum of the three arguments.
 template <typename T>
-static T min3(const T &a, const T &b, const T &c) {
+static T min3(const T &a, const T &b, const T &c)
+{
 	return std::min(a, std::min(b, c));
 }
 
 /// Clamp between two values.
 template <typename T>
-static T clamp(const T &x, const T &a, const T &b) {
+static T clamp(const T &x, const T &a, const T &b)
+{
 	return std::min(std::max(x, a), b);
 }
 
-static float saturate(float f) {
+static float saturate(float f)
+{
 	return clamp(f, 0.0f, 1.0f);
 }
 
 // Robust floating point comparisons:
 // http://realtimecollisiondetection.net/blog/?p=89
-static bool equal(const float f0, const float f1, const float epsilon = NV_EPSILON) {
+static bool equal(const float f0, const float f1, const float epsilon = NV_EPSILON)
+{
 	//return fabs(f0-f1) <= epsilon;
 	return fabs(f0 - f1) <= epsilon * max3(1.0f, fabsf(f0), fabsf(f1));
 }
 
-NV_FORCEINLINE static int ftoi_floor(float val) {
+NV_FORCEINLINE static int ftoi_floor(float val)
+{
 	return (int)val;
 }
 
-NV_FORCEINLINE static int ftoi_ceil(float val) {
+NV_FORCEINLINE static int ftoi_ceil(float val)
+{
 	return (int)ceilf(val);
 }
 
-NV_FORCEINLINE static int ftoi_round(float f) {
+NV_FORCEINLINE static int ftoi_round(float f)
+{
 	return int(floorf(f + 0.5f));
 }
 
-static bool isZero(const float f, const float epsilon = NV_EPSILON) {
+static bool isZero(const float f, const float epsilon = NV_EPSILON)
+{
 	return fabs(f) <= epsilon;
 }
 
-static float lerp(float f0, float f1, float t) {
+static float lerp(float f0, float f1, float t)
+{
 	const float s = 1.0f - t;
 	return f0 * s + f1 * t;
 }
 
-static float square(float f) {
+static float square(float f)
+{
 	return f * f;
 }
 
-static int square(int i) {
+static int square(int i)
+{
 	return i * i;
 }
 
@@ -133,8 +141,9 @@ static int square(int i) {
 * @note isPowerOfTwo(x) == true -> nextPowerOfTwo(x) == x
 * @note nextPowerOfTwo(x) = 2 << log2(x-1)
 */
-static uint32_t nextPowerOfTwo(uint32_t x) {
-	xaDebugAssert(x != 0);
+static uint32_t nextPowerOfTwo(uint32_t x)
+{
+	xaDebugAssert( x != 0 );
 	// On modern CPUs this is supposed to be as fast as using the bsr instruction.
 	x--;
 	x |= x >> 1;
@@ -145,7 +154,8 @@ static uint32_t nextPowerOfTwo(uint32_t x) {
 	return x + 1;
 }
 
-static uint64_t nextPowerOfTwo(uint64_t x) {
+static uint64_t nextPowerOfTwo(uint64_t x)
+{
 	xaDebugAssert(x != 0);
 	uint32_t p = 1;
 	while (x > p) {
@@ -154,17 +164,19 @@ static uint64_t nextPowerOfTwo(uint64_t x) {
 	return p;
 }
 
-static uint32_t sdbmHash(const void *data_in, uint32_t size, uint32_t h = 5381) {
-	const uint8_t *data = (const uint8_t *)data_in;
+static uint32_t sdbmHash(const void *data_in, uint32_t size, uint32_t h = 5381)
+{
+	const uint8_t *data = (const uint8_t *) data_in;
 	uint32_t i = 0;
 	while (i < size) {
-		h = (h << 16) + (h << 6) - h + (uint32_t)data[i++];
+		h = (h << 16) + (h << 6) - h + (uint32_t ) data[i++];
 	}
 	return h;
 }
 
 // Note that this hash does not handle NaN properly.
-static uint32_t sdbmFloatHash(const float *f, uint32_t count, uint32_t h = 5381) {
+static uint32_t sdbmFloatHash(const float *f, uint32_t count, uint32_t h = 5381)
+{
 	for (uint32_t i = 0; i < count; i++) {
 		union {
 			float f;
@@ -177,85 +189,93 @@ static uint32_t sdbmFloatHash(const float *f, uint32_t count, uint32_t h = 5381)
 }
 
 template <typename T>
-static uint32_t hash(const T &t, uint32_t h = 5381) {
+static uint32_t hash(const T &t, uint32_t h = 5381)
+{
 	return sdbmHash(&t, sizeof(T), h);
 }
 
-static uint32_t hash(const float &f, uint32_t h) {
+static uint32_t hash(const float &f, uint32_t h)
+{
 	return sdbmFloatHash(&f, 1, h);
 }
 
 // Functors for hash table:
-template <typename Key>
-struct Hash {
+template <typename Key> struct Hash
+{
 	uint32_t operator()(const Key &k) const { return hash(k); }
 };
 
-template <typename Key>
-struct Equal {
+template <typename Key> struct Equal
+{
 	bool operator()(const Key &k0, const Key &k1) const { return k0 == k1; }
 };
 
-class Vector2 {
+class Vector2
+{
 public:
 	typedef Vector2 const &Arg;
 
 	Vector2() {}
-	explicit Vector2(float f) :
-			x(f),
-			y(f) {}
-	Vector2(float x, float y) :
-			x(x),
-			y(y) {}
-	Vector2(Vector2::Arg v) :
-			x(v.x),
-			y(v.y) {}
-
-	const Vector2 &operator=(Vector2::Arg v) {
+	explicit Vector2(float f) : x(f), y(f) {}
+	Vector2(float x, float y): x(x), y(y) {}
+	Vector2(Vector2::Arg v) : x(v.x), y(v.y) {}
+
+	const Vector2 &operator=(Vector2::Arg v)
+	{
 		x = v.x;
 		y = v.y;
-		return *this;
+		return
+			*this;
 	}
 	const float *ptr() const { return &x; }
 
-	void set(float _x, float _y) {
+	void set(float _x, float _y)
+	{
 		x = _x;
 		y = _y;
 	}
 
-	Vector2 operator-() const {
+	Vector2 operator-() const
+	{
 		return Vector2(-x, -y);
 	}
 
-	void operator+=(Vector2::Arg v) {
+	void operator+=(Vector2::Arg v)
+	{
 		x += v.x;
 		y += v.y;
 	}
 
-	void operator-=(Vector2::Arg v) {
+	void operator-=(Vector2::Arg v)
+	{
 		x -= v.x;
 		y -= v.y;
 	}
 
-	void operator*=(float s) {
+	void operator*=(float s)
+	{
 		x *= s;
 		y *= s;
 	}
 
-	void operator*=(Vector2::Arg v) {
+	void operator*=(Vector2::Arg v)
+	{
 		x *= v.x;
 		y *= v.y;
 	}
 
-	friend bool operator==(Vector2::Arg a, Vector2::Arg b) {
+	friend bool operator==(Vector2::Arg a, Vector2::Arg b)
+	{
 		return a.x == b.x && a.y == b.y;
 	}
 
-	friend bool operator!=(Vector2::Arg a, Vector2::Arg b) {
+	friend bool operator!=(Vector2::Arg a, Vector2::Arg b)
+	{
 		return a.x != b.x || a.y != b.y;
 	}
 
-	union {
+	union
+	{
 #ifdef _MSC_VER
 #pragma warning(push)
 #pragma warning(disable : 4201)
@@ -272,52 +292,64 @@ public:
 	};
 };
 
-Vector2 operator+(Vector2::Arg a, Vector2::Arg b) {
+Vector2 operator+(Vector2::Arg a, Vector2::Arg b)
+{
 	return Vector2(a.x + b.x, a.y + b.y);
 }
 
-Vector2 operator-(Vector2::Arg a, Vector2::Arg b) {
+Vector2 operator-(Vector2::Arg a, Vector2::Arg b)
+{
 	return Vector2(a.x - b.x, a.y - b.y);
 }
 
-Vector2 operator*(Vector2::Arg v, float s) {
+Vector2 operator*(Vector2::Arg v, float s)
+{
 	return Vector2(v.x * s, v.y * s);
 }
 
-Vector2 operator*(Vector2::Arg v1, Vector2::Arg v2) {
+Vector2 operator*(Vector2::Arg v1, Vector2::Arg v2)
+{
 	return Vector2(v1.x * v2.x, v1.y * v2.y);
 }
 
-Vector2 operator/(Vector2::Arg v, float s) {
+Vector2 operator/(Vector2::Arg v, float s)
+{
 	return Vector2(v.x / s, v.y / s);
 }
 
-Vector2 lerp(Vector2::Arg v1, Vector2::Arg v2, float t) {
+Vector2 lerp(Vector2::Arg v1, Vector2::Arg v2, float t)
+{
 	const float s = 1.0f - t;
 	return Vector2(v1.x * s + t * v2.x, v1.y * s + t * v2.y);
 }
 
-float dot(Vector2::Arg a, Vector2::Arg b) {
+float dot(Vector2::Arg a, Vector2::Arg b)
+{
 	return a.x * b.x + a.y * b.y;
 }
 
-float lengthSquared(Vector2::Arg v) {
+float lengthSquared(Vector2::Arg v)
+{
 	return v.x * v.x + v.y * v.y;
 }
 
-float length(Vector2::Arg v) {
+float length(Vector2::Arg v)
+{
 	return sqrtf(lengthSquared(v));
 }
 
-float distance(Vector2::Arg a, Vector2::Arg b) {
+float distance(Vector2::Arg a, Vector2::Arg b)
+{
 	return length(a - b);
 }
 
-bool isNormalized(Vector2::Arg v, float epsilon = NV_NORMAL_EPSILON) {
+bool isNormalized(Vector2::Arg v, float epsilon = NV_NORMAL_EPSILON)
+{
 	return equal(length(v), 1, epsilon);
 }
 
-Vector2 normalize(Vector2::Arg v, float epsilon = NV_EPSILON) {
+Vector2 normalize(Vector2::Arg v, float epsilon = NV_EPSILON)
+{
 	float l = length(v);
 	xaDebugAssert(!isZero(l, epsilon));
 #ifdef NDEBUG
@@ -328,7 +360,8 @@ Vector2 normalize(Vector2::Arg v, float epsilon = NV_EPSILON) {
 	return n;
 }
 
-Vector2 normalizeSafe(Vector2::Arg v, Vector2::Arg fallback, float epsilon = NV_EPSILON) {
+Vector2 normalizeSafe(Vector2::Arg v, Vector2::Arg fallback, float epsilon = NV_EPSILON)
+{
 	float l = length(v);
 	if (isZero(l, epsilon)) {
 		return fallback;
@@ -336,23 +369,28 @@ Vector2 normalizeSafe(Vector2::Arg v, Vector2::Arg fallback, float epsilon = NV_
 	return v * (1.0f / l);
 }
 
-bool equal(Vector2::Arg v1, Vector2::Arg v2, float epsilon = NV_EPSILON) {
+bool equal(Vector2::Arg v1, Vector2::Arg v2, float epsilon = NV_EPSILON)
+{
 	return equal(v1.x, v2.x, epsilon) && equal(v1.y, v2.y, epsilon);
 }
 
-Vector2 max(Vector2::Arg a, Vector2::Arg b) {
+Vector2 max(Vector2::Arg a, Vector2::Arg b)
+{
 	return Vector2(std::max(a.x, b.x), std::max(a.y, b.y));
 }
 
-bool isFinite(Vector2::Arg v) {
+bool isFinite(Vector2::Arg v)
+{
 	return std::isfinite(v.x) && std::isfinite(v.y);
 }
 
 // Note, this is the area scaled by 2!
-float triangleArea(Vector2::Arg v0, Vector2::Arg v1) {
+float triangleArea(Vector2::Arg v0, Vector2::Arg v1)
+{
 	return (v0.x * v1.y - v0.y * v1.x); // * 0.5f;
 }
-float triangleArea(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c) {
+float triangleArea(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c)
+{
 	// IC: While it may be appealing to use the following expression:
 	//return (c.x * a.y + a.x * b.y + b.x * c.y - b.x * a.y - c.x * b.y - a.x * c.y); // * 0.5f;
 	// That's actually a terrible idea. Small triangles far from the origin can end up producing fairly large floating point
@@ -364,105 +402,109 @@ float triangleArea(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c) {
 	return triangleArea(a - c, b - c);
 }
 
-float triangleArea2(Vector2::Arg v1, Vector2::Arg v2, Vector2::Arg v3) {
+float triangleArea2(Vector2::Arg v1, Vector2::Arg v2, Vector2::Arg v3)
+{
 	return 0.5f * (v3.x * v1.y + v1.x * v2.y + v2.x * v3.y - v2.x * v1.y - v3.x * v2.y - v1.x * v3.y);
 }
 
-static uint32_t hash(const Vector2 &v, uint32_t h) {
+static uint32_t hash(const Vector2 &v, uint32_t h)
+{
 	return sdbmFloatHash(v.component, 2, h);
 }
 
-class Vector3 {
+class Vector3
+{
 public:
 	typedef Vector3 const &Arg;
 
 	Vector3() {}
-	explicit Vector3(float f) :
-			x(f),
-			y(f),
-			z(f) {}
-	Vector3(float x, float y, float z) :
-			x(x),
-			y(y),
-			z(z) {}
-	Vector3(Vector2::Arg v, float z) :
-			x(v.x),
-			y(v.y),
-			z(z) {}
-	Vector3(Vector3::Arg v) :
-			x(v.x),
-			y(v.y),
-			z(v.z) {}
-
-	const Vector3 &operator=(Vector3::Arg v) {
+	explicit Vector3(float f) : x(f), y(f), z(f) {}
+	Vector3(float x, float y, float z) : x(x), y(y), z(z) {}
+	Vector3(Vector2::Arg v, float z) : x(v.x), y(v.y), z(z) {}
+	Vector3(Vector3::Arg v) : x(v.x), y(v.y), z(v.z) {}
+
+	const Vector3 &operator=(Vector3::Arg v)
+	{
 		x = v.x;
 		y = v.y;
 		z = v.z;
 		return *this;
 	}
 
-	Vector2 xy() const {
+	Vector2 xy() const
+	{
 		return Vector2(x, y);
 	}
 
 	const float *ptr() const { return &x; }
 
-	void set(float _x, float _y, float _z) {
+	void set(float _x, float _y, float _z)
+	{
 		x = _x;
 		y = _y;
 		z = _z;
 	}
 
-	Vector3 operator-() const {
+	Vector3 operator-() const
+	{
 		return Vector3(-x, -y, -z);
 	}
 
-	void operator+=(Vector3::Arg v) {
+	void operator+=(Vector3::Arg v)
+	{
 		x += v.x;
 		y += v.y;
 		z += v.z;
 	}
 
-	void operator-=(Vector3::Arg v) {
+	void operator-=(Vector3::Arg v)
+	{
 		x -= v.x;
 		y -= v.y;
 		z -= v.z;
 	}
 
-	void operator*=(float s) {
+	void operator*=(float s)
+	{
 		x *= s;
 		y *= s;
 		z *= s;
 	}
 
-	void operator/=(float s) {
+	void operator/=(float s)
+	{
 		float is = 1.0f / s;
 		x *= is;
 		y *= is;
 		z *= is;
 	}
 
-	void operator*=(Vector3::Arg v) {
+	void operator*=(Vector3::Arg v)
+	{
 		x *= v.x;
 		y *= v.y;
 		z *= v.z;
 	}
 
-	void operator/=(Vector3::Arg v) {
+	void operator/=(Vector3::Arg v)
+	{
 		x /= v.x;
 		y /= v.y;
 		z /= v.z;
 	}
 
-	friend bool operator==(Vector3::Arg a, Vector3::Arg b) {
+	friend bool operator==(Vector3::Arg a, Vector3::Arg b)
+	{
 		return a.x == b.x && a.y == b.y && a.z == b.z;
 	}
 
-	friend bool operator!=(Vector3::Arg a, Vector3::Arg b) {
+	friend bool operator!=(Vector3::Arg a, Vector3::Arg b)
+	{
 		return a.x != b.x || a.y != b.y || a.z != b.z;
 	}
 
-	union {
+	union
+	{
 #ifdef _MSC_VER
 #pragma warning(push)
 #pragma warning(disable : 4201)
@@ -479,85 +521,106 @@ public:
 	};
 };
 
-Vector3 add(Vector3::Arg a, Vector3::Arg b) {
+Vector3 add(Vector3::Arg a, Vector3::Arg b)
+{
 	return Vector3(a.x + b.x, a.y + b.y, a.z + b.z);
 }
-Vector3 add(Vector3::Arg a, float b) {
+Vector3 add(Vector3::Arg a, float b)
+{
 	return Vector3(a.x + b, a.y + b, a.z + b);
 }
-Vector3 operator+(Vector3::Arg a, Vector3::Arg b) {
+Vector3 operator+(Vector3::Arg a, Vector3::Arg b)
+{
 	return add(a, b);
 }
-Vector3 operator+(Vector3::Arg a, float b) {
+Vector3 operator+(Vector3::Arg a, float b)
+{
 	return add(a, b);
 }
 
-Vector3 sub(Vector3::Arg a, Vector3::Arg b) {
+Vector3 sub(Vector3::Arg a, Vector3::Arg b)
+{
 	return Vector3(a.x - b.x, a.y - b.y, a.z - b.z);
 }
 
-Vector3 sub(Vector3::Arg a, float b) {
+Vector3 sub(Vector3::Arg a, float b)
+{
 	return Vector3(a.x - b, a.y - b, a.z - b);
 }
 
-Vector3 operator-(Vector3::Arg a, Vector3::Arg b) {
+Vector3 operator-(Vector3::Arg a, Vector3::Arg b)
+{
 	return sub(a, b);
 }
 
-Vector3 operator-(Vector3::Arg a, float b) {
+Vector3 operator-(Vector3::Arg a, float b)
+{
 	return sub(a, b);
 }
 
-Vector3 cross(Vector3::Arg a, Vector3::Arg b) {
+Vector3 cross(Vector3::Arg a, Vector3::Arg b)
+{
 	return Vector3(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x);
 }
 
-Vector3 operator*(Vector3::Arg v, float s) {
+Vector3 operator*(Vector3::Arg v, float s)
+{
 	return Vector3(v.x * s, v.y * s, v.z * s);
 }
 
-Vector3 operator*(float s, Vector3::Arg v) {
+Vector3 operator*(float s, Vector3::Arg v)
+{
 	return Vector3(v.x * s, v.y * s, v.z * s);
 }
 
-Vector3 operator*(Vector3::Arg v, Vector3::Arg s) {
+Vector3 operator*(Vector3::Arg v, Vector3::Arg s)
+{
 	return Vector3(v.x * s.x, v.y * s.y, v.z * s.z);
 }
 
-Vector3 operator/(Vector3::Arg v, float s) {
+Vector3 operator/(Vector3::Arg v, float s)
+{
 	return v * (1.0f / s);
 }
 
-Vector3 lerp(Vector3::Arg v1, Vector3::Arg v2, float t) {
+Vector3 lerp(Vector3::Arg v1, Vector3::Arg v2, float t)
+{
 	const float s = 1.0f - t;
 	return Vector3(v1.x * s + t * v2.x, v1.y * s + t * v2.y, v1.z * s + t * v2.z);
 }
 
-float dot(Vector3::Arg a, Vector3::Arg b) {
+float dot(Vector3::Arg a, Vector3::Arg b)
+{
 	return a.x * b.x + a.y * b.y + a.z * b.z;
 }
 
-float lengthSquared(Vector3::Arg v) {
+float lengthSquared(Vector3::Arg v)
+{
 	return v.x * v.x + v.y * v.y + v.z * v.z;
 }
 
-float length(Vector3::Arg v) {
+float length(Vector3::Arg v)
+{
 	return sqrtf(lengthSquared(v));
 }
 
-float distance(Vector3::Arg a, Vector3::Arg b) {
+float distance(Vector3::Arg a, Vector3::Arg b)
+{
 	return length(a - b);
 }
 
-float distanceSquared(Vector3::Arg a, Vector3::Arg b) {
+float distanceSquared(Vector3::Arg a, Vector3::Arg b)
+{
 	return lengthSquared(a - b);
 }
 
-bool isNormalized(Vector3::Arg v, float epsilon = NV_NORMAL_EPSILON) {
+bool isNormalized(Vector3::Arg v, float epsilon = NV_NORMAL_EPSILON)
+{
 	return equal(length(v), 1, epsilon);
 }
 
-Vector3 normalize(Vector3::Arg v, float epsilon = NV_EPSILON) {
+Vector3 normalize(Vector3::Arg v, float epsilon = NV_EPSILON)
+{
 	float l = length(v);
 	xaDebugAssert(!isZero(l, epsilon));
 #ifdef NDEBUG
@@ -568,7 +631,8 @@ Vector3 normalize(Vector3::Arg v, float epsilon = NV_EPSILON) {
 	return n;
 }
 
-Vector3 normalizeSafe(Vector3::Arg v, Vector3::Arg fallback, float epsilon = NV_EPSILON) {
+Vector3 normalizeSafe(Vector3::Arg v, Vector3::Arg fallback, float epsilon = NV_EPSILON)
+{
 	float l = length(v);
 	if (isZero(l, epsilon)) {
 		return fallback;
@@ -576,49 +640,56 @@ Vector3 normalizeSafe(Vector3::Arg v, Vector3::Arg fallback, float epsilon = NV_
 	return v * (1.0f / l);
 }
 
-bool equal(Vector3::Arg v1, Vector3::Arg v2, float epsilon = NV_EPSILON) {
+bool equal(Vector3::Arg v1, Vector3::Arg v2, float epsilon = NV_EPSILON)
+{
 	return equal(v1.x, v2.x, epsilon) && equal(v1.y, v2.y, epsilon) && equal(v1.z, v2.z, epsilon);
 }
 
-Vector3 min(Vector3::Arg a, Vector3::Arg b) {
+Vector3 min(Vector3::Arg a, Vector3::Arg b)
+{
 	return Vector3(std::min(a.x, b.x), std::min(a.y, b.y), std::min(a.z, b.z));
 }
 
-Vector3 max(Vector3::Arg a, Vector3::Arg b) {
+Vector3 max(Vector3::Arg a, Vector3::Arg b)
+{
 	return Vector3(std::max(a.x, b.x), std::max(a.y, b.y), std::max(a.z, b.z));
 }
 
-Vector3 clamp(Vector3::Arg v, float min, float max) {
+Vector3 clamp(Vector3::Arg v, float min, float max)
+{
 	return Vector3(clamp(v.x, min, max), clamp(v.y, min, max), clamp(v.z, min, max));
 }
 
-Vector3 saturate(Vector3::Arg v) {
+Vector3 saturate(Vector3::Arg v)
+{
 	return Vector3(saturate(v.x), saturate(v.y), saturate(v.z));
 }
 
-Vector3 floor(Vector3::Arg v) {
+Vector3 floor(Vector3::Arg v)
+{
 	return Vector3(floorf(v.x), floorf(v.y), floorf(v.z));
 }
 
-bool isFinite(Vector3::Arg v) {
+bool isFinite(Vector3::Arg v)
+{
 	return std::isfinite(v.x) && std::isfinite(v.y) && std::isfinite(v.z);
 }
 
-static uint32_t hash(const Vector3 &v, uint32_t h) {
+static uint32_t hash(const Vector3 &v, uint32_t h)
+{
 	return sdbmFloatHash(v.component, 3, h);
 }
 
 /// Basis class to compute tangent space basis, ortogonalizations and to
 /// transform vectors from one space to another.
-class Basis {
+class Basis
+{
 public:
 	/// Create a null basis.
-	Basis() :
-			tangent(0, 0, 0),
-			bitangent(0, 0, 0),
-			normal(0, 0, 0) {}
+	Basis() : tangent(0, 0, 0), bitangent(0, 0, 0), normal(0, 0, 0) {}
 
-	void buildFrameForDirection(Vector3::Arg d, float angle = 0) {
+	void buildFrameForDirection(Vector3::Arg d, float angle = 0)
+	{
 		xaAssert(isNormalized(d));
 		normal = d;
 		// Choose minimum axis.
@@ -649,65 +720,76 @@ public:
 };
 
 // Simple bit array.
-class BitArray {
+class BitArray
+{
 public:
-	BitArray() :
-			m_size(0) {}
-	BitArray(uint32_t sz) {
+	BitArray() : m_size(0) {}
+	BitArray(uint32_t sz)
+	{
 		resize(sz);
 	}
 
-	uint32_t size() const {
+	uint32_t size() const
+	{
 		return m_size;
 	}
 
-	void clear() {
+	void clear()
+	{
 		resize(0);
 	}
 
-	void resize(uint32_t new_size) {
+	void resize(uint32_t new_size)
+	{
 		m_size = new_size;
-		m_wordArray.resize((m_size + 31) >> 5);
+		m_wordArray.resize( (m_size + 31) >> 5 );
 	}
 
 	/// Get bit.
-	bool bitAt(uint32_t b) const {
-		xaDebugAssert(b < m_size);
+	bool bitAt(uint32_t b) const
+	{
+		xaDebugAssert( b < m_size );
 		return (m_wordArray[b >> 5] & (1 << (b & 31))) != 0;
 	}
 
 	// Set a bit.
-	void setBitAt(uint32_t idx) {
+	void setBitAt(uint32_t idx)
+	{
 		xaDebugAssert(idx < m_size);
-		m_wordArray[idx >> 5] |= (1 << (idx & 31));
+		m_wordArray[idx >> 5] |=  (1 << (idx & 31));
 	}
 
 	// Toggle a bit.
-	void toggleBitAt(uint32_t idx) {
+	void toggleBitAt(uint32_t idx)
+	{
 		xaDebugAssert(idx < m_size);
 		m_wordArray[idx >> 5] ^= (1 << (idx & 31));
 	}
 
 	// Set a bit to the given value. @@ Rename modifyBitAt?
-	void setBitAt(uint32_t idx, bool b) {
+	void setBitAt(uint32_t idx, bool b)
+	{
 		xaDebugAssert(idx < m_size);
 		m_wordArray[idx >> 5] = setBits(m_wordArray[idx >> 5], 1 << (idx & 31), b);
 		xaDebugAssert(bitAt(idx) == b);
 	}
 
 	// Clear all the bits.
-	void clearAll() {
-		memset(m_wordArray.data(), 0, m_wordArray.size() * sizeof(uint32_t));
+	void clearAll()
+	{
+		memset(m_wordArray.data(), 0, m_wordArray.size() * sizeof(uint32_t ));
 	}
 
 	// Set all the bits.
-	void setAll() {
-		memset(m_wordArray.data(), 0xFF, m_wordArray.size() * sizeof(uint32_t));
+	void setAll()
+	{
+		memset(m_wordArray.data(), 0xFF, m_wordArray.size() * sizeof(uint32_t ));
 	}
 
 private:
 	// See "Conditionally set or clear bits without branching" at http://graphics.stanford.edu/~seander/bithacks.html
-	uint32_t setBits(uint32_t w, uint32_t m, bool b) {
+	uint32_t setBits(uint32_t w, uint32_t m, bool b)
+	{
 		return (w & ~m) | (-int(b) & m);
 	}
 
@@ -719,29 +801,26 @@ private:
 };
 
 /// Bit map. This should probably be called BitImage.
-class BitMap {
+class BitMap
+{
 public:
-	BitMap() :
-			m_width(0),
-			m_height(0) {}
-	BitMap(uint32_t w, uint32_t h) :
-			m_width(w),
-			m_height(h),
-			m_bitArray(w * h) {}
-
-	uint32_t width() const {
+	BitMap() : m_width(0), m_height(0) {}
+	BitMap(uint32_t w, uint32_t h) : m_width(w), m_height(h), m_bitArray(w * h) {}
+
+	uint32_t width() const
+	{
 		return m_width;
 	}
-	uint32_t height() const {
+	uint32_t height() const
+	{
 		return m_height;
 	}
 
-	void resize(uint32_t w, uint32_t h, bool initValue) {
+	void resize(uint32_t w, uint32_t h, bool initValue)
+	{
 		BitArray tmp(w * h);
-		if (initValue)
-			tmp.setAll();
-		else
-			tmp.clearAll();
+		if (initValue) tmp.setAll();
+		else tmp.clearAll();
 		// @@ Copying one bit at a time. This could be much faster.
 		for (uint32_t y = 0; y < m_height; y++) {
 			for (uint32_t x = 0; x < m_width; x++) {
@@ -754,17 +833,20 @@ public:
 		m_height = h;
 	}
 
-	bool bitAt(uint32_t x, uint32_t y) const {
+	bool bitAt(uint32_t x, uint32_t y) const
+	{
 		xaDebugAssert(x < m_width && y < m_height);
 		return m_bitArray.bitAt(y * m_width + x);
 	}
 
-	void setBitAt(uint32_t x, uint32_t y) {
+	void setBitAt(uint32_t x, uint32_t y)
+	{
 		xaDebugAssert(x < m_width && y < m_height);
 		m_bitArray.setBitAt(y * m_width + x);
 	}
 
-	void clearAll() {
+	void clearAll()
+	{
 		m_bitArray.clearAll();
 	}
 
@@ -775,39 +857,41 @@ private:
 };
 
 // Axis Aligned Bounding Box.
-class Box {
+class Box
+{
 public:
 	Box() {}
-	Box(const Box &b) :
-			minCorner(b.minCorner),
-			maxCorner(b.maxCorner) {}
-	Box(const Vector3 &mins, const Vector3 &maxs) :
-			minCorner(mins),
-			maxCorner(maxs) {}
-
-	operator const float *() const {
+	Box(const Box &b) : minCorner(b.minCorner), maxCorner(b.maxCorner) {}
+	Box(const Vector3 &mins, const Vector3 &maxs) : minCorner(mins), maxCorner(maxs) {}
+
+	operator const float *() const
+	{
 		return reinterpret_cast<const float *>(this);
 	}
 
 	// Clear the bounds.
-	void clearBounds() {
+	void clearBounds()
+	{
 		minCorner.set(FLT_MAX, FLT_MAX, FLT_MAX);
 		maxCorner.set(-FLT_MAX, -FLT_MAX, -FLT_MAX);
 	}
 
 	// Return extents of the box.
-	Vector3 extents() const {
+	Vector3 extents() const
+	{
 		return (maxCorner - minCorner) * 0.5f;
 	}
 
 	// Add a point to this box.
-	void addPointToBounds(const Vector3 &p) {
+	void addPointToBounds(const Vector3 &p)
+	{
 		minCorner = min(minCorner, p);
 		maxCorner = max(maxCorner, p);
 	}
 
 	// Get the volume of the box.
-	float volume() const {
+	float volume() const
+	{
 		Vector3 d = extents();
 		return 8.0f * (d.x * d.y * d.z);
 	}
@@ -816,9 +900,11 @@ public:
 	Vector3 maxCorner;
 };
 
-class Fit {
+class Fit
+{
 public:
-	static Vector3 computeCentroid(int n, const Vector3 *__restrict points) {
+	static Vector3 computeCentroid(int n, const Vector3 *__restrict points)
+	{
 		Vector3 centroid(0.0f);
 		for (int i = 0; i < n; i++) {
 			centroid += points[i];
@@ -827,7 +913,8 @@ public:
 		return centroid;
 	}
 
-	static Vector3 computeCovariance(int n, const Vector3 *__restrict points, float *__restrict covariance) {
+	static Vector3 computeCovariance(int n, const Vector3 *__restrict points, float *__restrict covariance)
+	{
 		// compute the centroid
 		Vector3 centroid = computeCentroid(n, points);
 		// compute covariance matrix
@@ -846,7 +933,8 @@ public:
 		return centroid;
 	}
 
-	static bool isPlanar(int n, const Vector3 *points, float epsilon = NV_EPSILON) {
+	static bool isPlanar(int n, const Vector3 *points, float epsilon = NV_EPSILON)
+	{
 		// compute the centroid and covariance
 		float matrix[6];
 		computeCovariance(n, points, matrix);
@@ -861,7 +949,8 @@ public:
 	// Tridiagonal solver from Charles Bloom.
 	// Householder transforms followed by QL decomposition.
 	// Seems to be based on the code from Numerical Recipes in C.
-	static bool eigenSolveSymmetric3(const float matrix[6], float eigenValues[3], Vector3 eigenVectors[3]) {
+	static bool eigenSolveSymmetric3(const float matrix[6], float eigenValues[3], Vector3 eigenVectors[3])
+	{
 		xaDebugAssert(matrix != NULL && eigenValues != NULL && eigenVectors != NULL);
 		float subd[3];
 		float diag[3];
@@ -886,7 +975,7 @@ public:
 		// eigenvectors are the columns; make them the rows :
 		for (int i = 0; i < 3; i++) {
 			for (int j = 0; j < 3; j++) {
-				eigenVectors[j].component[i] = (float)work[i][j];
+				eigenVectors[j].component[i] = (float) work[i][j];
 			}
 		}
 		// shuffle to sort by singular value :
@@ -908,7 +997,8 @@ public:
 	}
 
 private:
-	static void EigenSolver3_Tridiagonal(float mat[3][3], float *diag, float *subd) {
+	static void EigenSolver3_Tridiagonal(float mat[3][3], float *diag, float *subd)
+	{
 		// Householder reduction T = Q^t M Q
 		//   Input:
 		//     mat, symmetric 3x3 matrix M
@@ -960,7 +1050,8 @@ private:
 		}
 	}
 
-	static bool EigenSolver3_QLAlgorithm(float mat[3][3], float *diag, float *subd) {
+	static bool EigenSolver3_QLAlgorithm(float mat[3][3], float *diag, float *subd)
+	{
 		// QL iteration with implicit shifting to reduce matrix from tridiagonal
 		// to diagonal
 		const int maxiter = 32;
@@ -970,21 +1061,21 @@ private:
 				int m;
 				for (m = ell; m <= 1; m++) {
 					float dd = fabsf(diag[m]) + fabsf(diag[m + 1]);
-					if (fabsf(subd[m]) + dd == dd)
+					if ( fabsf(subd[m]) + dd == dd )
 						break;
 				}
-				if (m == ell)
+				if ( m == ell )
 					break;
 				float g = (diag[ell + 1] - diag[ell]) / (2 * subd[ell]);
 				float r = sqrtf(g * g + 1);
-				if (g < 0)
+				if ( g < 0 )
 					g = diag[m] - diag[ell] + subd[ell] / (g - r);
 				else
 					g = diag[m] - diag[ell] + subd[ell] / (g + r);
 				float s = 1, c = 1, p = 0;
 				for (int i = m - 1; i >= ell; i--) {
 					float f = s * subd[i], b = c * subd[i];
-					if (fabsf(f) >= fabsf(g)) {
+					if ( fabsf(f) >= fabsf(g) ) {
 						c = g / f;
 						r = sqrtf(c * c + 1);
 						subd[i + 1] = f * r;
@@ -1010,7 +1101,7 @@ private:
 				subd[ell] = g;
 				subd[m] = 0;
 			}
-			if (iter == maxiter)
+			if ( iter == maxiter )
 				// should not get here under normal circumstances
 				return false;
 		}
@@ -1019,30 +1110,33 @@ private:
 };
 
 /// Fixed size vector class.
-class FullVector {
+class FullVector
+{
 public:
 	FullVector(uint32_t dim) { m_array.resize(dim); }
-	FullVector(const FullVector &v) :
-			m_array(v.m_array) {}
+	FullVector(const FullVector &v) : m_array(v.m_array) {}
 
-	const FullVector &operator=(const FullVector &v) {
+	const FullVector &operator=(const FullVector &v)
+	{
 		xaAssert(dimension() == v.dimension());
 		m_array = v.m_array;
 		return *this;
 	}
 
 	uint32_t dimension() const { return m_array.size(); }
-	const float &operator[](uint32_t index) const { return m_array[index]; }
-	float &operator[](uint32_t index) { return m_array[index]; }
+	const float &operator[]( uint32_t index ) const { return m_array[index]; }
+	float &operator[] ( uint32_t index ) { return m_array[index]; }
 
-	void fill(float f) {
+	void fill(float f)
+	{
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
 			m_array[i] = f;
 		}
 	}
 
-	void operator+=(const FullVector &v) {
+	void operator+=(const FullVector &v)
+	{
 		xaDebugAssert(dimension() == v.dimension());
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
@@ -1050,7 +1144,8 @@ public:
 		}
 	}
 
-	void operator-=(const FullVector &v) {
+	void operator-=(const FullVector &v)
+	{
 		xaDebugAssert(dimension() == v.dimension());
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
@@ -1058,7 +1153,8 @@ public:
 		}
 	}
 
-	void operator*=(const FullVector &v) {
+	void operator*=(const FullVector &v)
+	{
 		xaDebugAssert(dimension() == v.dimension());
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
@@ -1066,21 +1162,24 @@ public:
 		}
 	}
 
-	void operator+=(float f) {
+	void operator+=(float f)
+	{
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
 			m_array[i] += f;
 		}
 	}
 
-	void operator-=(float f) {
+	void operator-=(float f)
+	{
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
 			m_array[i] -= f;
 		}
 	}
 
-	void operator*=(float f) {
+	void operator*=(float f)
+	{
 		const uint32_t dim = dimension();
 		for (uint32_t i = 0; i < dim; i++) {
 			m_array[i] *= f;
@@ -1095,66 +1194,70 @@ namespace halfedge {
 class Face;
 class Vertex;
 
-class Edge {
+class Edge
+{
 public:
 	uint32_t id;
 	Edge *next;
-	Edge *prev; // This is not strictly half-edge, but makes algorithms easier and faster.
+	Edge *prev;	// This is not strictly half-edge, but makes algorithms easier and faster.
 	Edge *pair;
 	Vertex *vertex;
 	Face *face;
 
 	// Default constructor.
-	Edge(uint32_t id) :
-			id(id),
-			next(NULL),
-			prev(NULL),
-			pair(NULL),
-			vertex(NULL),
-			face(NULL) {}
+	Edge(uint32_t id) : id(id), next(NULL), prev(NULL), pair(NULL), vertex(NULL), face(NULL) {}
 
 	// Vertex queries.
-	const Vertex *from() const {
+	const Vertex *from() const
+	{
 		return vertex;
 	}
 
-	Vertex *from() {
+	Vertex *from()
+	{
 		return vertex;
 	}
 
-	const Vertex *to() const {
-		return pair->vertex; // This used to be 'next->vertex', but that changed often when the connectivity of the mesh changes.
+	const Vertex *to() const
+	{
+		return pair->vertex;    // This used to be 'next->vertex', but that changed often when the connectivity of the mesh changes.
 	}
 
-	Vertex *to() {
+	Vertex *to()
+	{
 		return pair->vertex;
 	}
 
 	// Edge queries.
-	void setNext(Edge *e) {
+	void setNext(Edge *e)
+	{
 		next = e;
 		if (e != NULL) e->prev = this;
 	}
-	void setPrev(Edge *e) {
+	void setPrev(Edge *e)
+	{
 		prev = e;
 		if (e != NULL) e->next = this;
 	}
 
 	// @@ It would be more simple to only check m_pair == NULL
 	// Face queries.
-	bool isBoundary() const {
+	bool isBoundary() const
+	{
 		return !(face && pair->face);
 	}
 
 	// @@ This is not exactly accurate, we should compare the texture coordinates...
-	bool isSeam() const {
+	bool isSeam() const
+	{
 		return vertex != pair->next->vertex || next->vertex != pair->vertex;
 	}
 
 	bool isNormalSeam() const;
 	bool isTextureSeam() const;
 
-	bool isValid() const {
+	bool isValid() const
+	{
 		// null face is OK.
 		if (next == NULL || prev == NULL || pair == NULL || vertex == NULL) return false;
 		if (next->prev != this) return false;
@@ -1169,10 +1272,13 @@ public:
 	float angle() const;
 };
 
-class Vertex {
+class Vertex
+{
 public:
 	uint32_t id;
+	// -- GODOT start --
 	uint32_t original_id;
+	// -- GODOT end --
 	Edge *edge;
 	Vertex *next;
 	Vertex *prev;
@@ -1180,36 +1286,38 @@ public:
 	Vector3 nor;
 	Vector2 tex;
 
-	Vertex(uint32_t id) :
-			id(id),
-			original_id(id),
-			edge(NULL),
-			pos(0.0f),
-			nor(0.0f),
-			tex(0.0f) {
+	// -- GODOT start --
+	//Vertex(uint32_t id) : id(id), edge(NULL), pos(0.0f), nor(0.0f), tex(0.0f)
+	Vertex(uint32_t id) : id(id), original_id(id), edge(NULL), pos(0.0f), nor(0.0f), tex(0.0f)
+	// -- GODOT end --
+	{
 		next = this;
 		prev = this;
 	}
 
 	// Set first edge of all colocals.
-	void setEdge(Edge *e) {
+	void setEdge(Edge *e)
+	{
 		for (VertexIterator it(colocals()); !it.isDone(); it.advance()) {
 			it.current()->edge = e;
 		}
 	}
 
 	// Update position of all colocals.
-	void setPos(const Vector3 &p) {
+	void setPos(const Vector3 &p)
+	{
 		for (VertexIterator it(colocals()); !it.isDone(); it.advance()) {
 			it.current()->pos = p;
 		}
 	}
 
-	bool isFirstColocal() const {
+	bool isFirstColocal() const
+	{
 		return firstColocal() == this;
 	}
 
-	const Vertex *firstColocal() const {
+	const Vertex *firstColocal() const
+	{
 		uint32_t firstId = id;
 		const Vertex *vertex = this;
 		for (ConstVertexIterator it(colocals()); !it.isDone(); it.advance()) {
@@ -1221,7 +1329,8 @@ public:
 		return vertex;
 	}
 
-	Vertex *firstColocal() {
+	Vertex *firstColocal()
+	{
 		Vertex *vertex = this;
 		uint32_t firstId = id;
 		for (VertexIterator it(colocals()); !it.isDone(); it.advance()) {
@@ -1233,7 +1342,8 @@ public:
 		return vertex;
 	}
 
-	bool isColocal(const Vertex *v) const {
+	bool isColocal(const Vertex *v) const
+	{
 		if (this == v) return true;
 		if (pos != v->pos) return false;
 		for (ConstVertexIterator it(colocals()); !it.isDone(); it.advance()) {
@@ -1244,13 +1354,15 @@ public:
 		return false;
 	}
 
-	void linkColocal(Vertex *v) {
+	void linkColocal(Vertex *v)
+	{
 		next->prev = v;
 		v->next = next;
 		next = v;
 		v->prev = this;
 	}
-	void unlinkColocal() {
+	void unlinkColocal()
+	{
 		next->prev = prev;
 		prev->next = next;
 		next = this;
@@ -1258,7 +1370,8 @@ public:
 	}
 
 	// @@ Note: This only works if linkBoundary has been called.
-	bool isBoundary() const {
+	bool isBoundary() const
+	{
 		return (edge && !edge->face);
 	}
 
@@ -1266,23 +1379,25 @@ public:
 	class EdgeIterator //: public Iterator<Edge *>
 	{
 	public:
-		EdgeIterator(Edge *e) :
-				m_end(NULL),
-				m_current(e) {}
+		EdgeIterator(Edge *e) : m_end(NULL), m_current(e) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			if (m_end == NULL) m_end = m_current;
 			m_current = m_current->pair->next;
 			//m_current = m_current->prev->pair;
 		}
 
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_end == m_current;
 		}
-		virtual Edge *current() const {
+		virtual Edge *current() const
+		{
 			return m_current;
 		}
-		Vertex *vertex() const {
+		Vertex *vertex() const
+		{
 			return m_current->vertex;
 		}
 
@@ -1291,10 +1406,12 @@ public:
 		Edge *m_current;
 	};
 
-	EdgeIterator edges() {
+	EdgeIterator edges()
+	{
 		return EdgeIterator(edge);
 	}
-	EdgeIterator edges(Edge *e) {
+	EdgeIterator edges(Edge *e)
+	{
 		return EdgeIterator(e);
 	}
 
@@ -1302,26 +1419,26 @@ public:
 	class ConstEdgeIterator //: public Iterator<Edge *>
 	{
 	public:
-		ConstEdgeIterator(const Edge *e) :
-				m_end(NULL),
-				m_current(e) {}
-		ConstEdgeIterator(EdgeIterator it) :
-				m_end(NULL),
-				m_current(it.current()) {}
-
-		virtual void advance() {
+		ConstEdgeIterator(const Edge *e) : m_end(NULL), m_current(e) { }
+		ConstEdgeIterator(EdgeIterator it) : m_end(NULL), m_current(it.current()) { }
+
+		virtual void advance()
+		{
 			if (m_end == NULL) m_end = m_current;
 			m_current = m_current->pair->next;
 			//m_current = m_current->prev->pair;
 		}
 
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_end == m_current;
 		}
-		virtual const Edge *current() const {
+		virtual const Edge *current() const
+		{
 			return m_current;
 		}
-		const Vertex *vertex() const {
+		const Vertex *vertex() const
+		{
 			return m_current->to();
 		}
 
@@ -1330,10 +1447,12 @@ public:
 		const Edge *m_current;
 	};
 
-	ConstEdgeIterator edges() const {
+	ConstEdgeIterator edges() const
+	{
 		return ConstEdgeIterator(edge);
 	}
-	ConstEdgeIterator edges(const Edge *e) const {
+	ConstEdgeIterator edges(const Edge *e) const
+	{
 		return ConstEdgeIterator(e);
 	}
 
@@ -1341,19 +1460,20 @@ public:
 	class VertexIterator //: public Iterator<Edge *>
 	{
 	public:
-		VertexIterator(Vertex *v) :
-				m_end(NULL),
-				m_current(v) {}
+		VertexIterator(Vertex *v) : m_end(NULL), m_current(v) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			if (m_end == NULL) m_end = m_current;
 			m_current = m_current->next;
 		}
 
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_end == m_current;
 		}
-		virtual Vertex *current() const {
+		virtual Vertex *current() const
+		{
 			return m_current;
 		}
 
@@ -1362,7 +1482,8 @@ public:
 		Vertex *m_current;
 	};
 
-	VertexIterator colocals() {
+	VertexIterator colocals()
+	{
 		return VertexIterator(this);
 	}
 
@@ -1370,19 +1491,20 @@ public:
 	class ConstVertexIterator //: public Iterator<Edge *>
 	{
 	public:
-		ConstVertexIterator(const Vertex *v) :
-				m_end(NULL),
-				m_current(v) {}
+		ConstVertexIterator(const Vertex *v) : m_end(NULL), m_current(v) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			if (m_end == NULL) m_end = m_current;
 			m_current = m_current->next;
 		}
 
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_end == m_current;
 		}
-		virtual const Vertex *current() const {
+		virtual const Vertex *current() const
+		{
 			return m_current;
 		}
 
@@ -1391,24 +1513,29 @@ public:
 		const Vertex *m_current;
 	};
 
-	ConstVertexIterator colocals() const {
+	ConstVertexIterator colocals() const
+	{
 		return ConstVertexIterator(this);
 	}
 };
 
-bool Edge::isNormalSeam() const {
+bool Edge::isNormalSeam() const
+{
 	return (vertex->nor != pair->next->vertex->nor || next->vertex->nor != pair->vertex->nor);
 }
 
-bool Edge::isTextureSeam() const {
+bool Edge::isTextureSeam() const
+{
 	return (vertex->tex != pair->next->vertex->tex || next->vertex->tex != pair->vertex->tex);
 }
 
-float Edge::length() const {
+float Edge::length() const
+{
 	return internal::length(to()->pos - from()->pos);
 }
 
-float Edge::angle() const {
+float Edge::angle() const
+{
 	Vector3 p = vertex->pos;
 	Vector3 a = prev->vertex->pos;
 	Vector3 b = next->vertex->pos;
@@ -1417,20 +1544,18 @@ float Edge::angle() const {
 	return acosf(dot(v0, v1) / (internal::length(v0) * internal::length(v1)));
 }
 
-class Face {
+class Face
+{
 public:
 	uint32_t id;
 	uint16_t group;
 	uint16_t material;
 	Edge *edge;
 
-	Face(uint32_t id) :
-			id(id),
-			group(uint16_t(~0)),
-			material(uint16_t(~0)),
-			edge(NULL) {}
+	Face(uint32_t id) : id(id), group(uint16_t(~0)), material(uint16_t(~0)), edge(NULL) {}
 
-	float area() const {
+	float area() const
+	{
 		float area = 0;
 		const Vector3 &v0 = edge->from()->pos;
 		for (ConstEdgeIterator it(edges(edge->next)); it.current() != edge->prev; it.advance()) {
@@ -1442,7 +1567,8 @@ public:
 		return area * 0.5f;
 	}
 
-	float parametricArea() const {
+	float parametricArea() const
+	{
 		float area = 0;
 		const Vector2 &v0 = edge->from()->tex;
 		for (ConstEdgeIterator it(edges(edge->next)); it.current() != edge->prev; it.advance()) {
@@ -1454,7 +1580,8 @@ public:
 		return area * 0.5f;
 	}
 
-	Vector3 normal() const {
+	Vector3 normal() const
+	{
 		Vector3 n(0);
 		const Vertex *vertex0 = NULL;
 		for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) {
@@ -1476,7 +1603,8 @@ public:
 		return normalizeSafe(n, Vector3(0, 0, 1), 0.0f);
 	}
 
-	Vector3 centroid() const {
+	Vector3 centroid() const
+	{
 		Vector3 sum(0.0f);
 		uint32_t count = 0;
 		for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) {
@@ -1488,7 +1616,8 @@ public:
 	}
 
 	// Unnormalized face normal assuming it's a triangle.
-	Vector3 triangleNormal() const {
+	Vector3 triangleNormal() const
+	{
 		Vector3 p0 = edge->vertex->pos;
 		Vector3 p1 = edge->next->vertex->pos;
 		Vector3 p2 = edge->next->next->vertex->pos;
@@ -1497,7 +1626,8 @@ public:
 		return normalizeSafe(cross(e0, e1), Vector3(0), 0.0f);
 	}
 
-	Vector3 triangleNormalAreaScaled() const {
+	Vector3 triangleNormalAreaScaled() const
+	{
 		Vector3 p0 = edge->vertex->pos;
 		Vector3 p1 = edge->next->vertex->pos;
 		Vector3 p2 = edge->next->next->vertex->pos;
@@ -1508,7 +1638,8 @@ public:
 
 	// Average of the edge midpoints weighted by the edge length.
 	// I want a point inside the triangle, but closer to the cirumcenter.
-	Vector3 triangleCenter() const {
+	Vector3 triangleCenter() const
+	{
 		Vector3 p0 = edge->vertex->pos;
 		Vector3 p1 = edge->next->vertex->pos;
 		Vector3 p2 = edge->next->next->vertex->pos;
@@ -1521,7 +1652,8 @@ public:
 		return m0 + m1 + m2;
 	}
 
-	bool isValid() const {
+	bool isValid() const
+	{
 		uint32_t count = 0;
 		for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) {
 			const Edge *e = it.current();
@@ -1534,14 +1666,16 @@ public:
 		return true;
 	}
 
-	bool contains(const Edge *e) const {
+	bool contains(const Edge *e) const
+	{
 		for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) {
 			if (it.current() == e) return true;
 		}
 		return false;
 	}
 
-	uint32_t edgeCount() const {
+	uint32_t edgeCount() const
+	{
 		uint32_t count = 0;
 		for (ConstEdgeIterator it(edges()); !it.isDone(); it.advance()) {
 			++count;
@@ -1553,22 +1687,24 @@ public:
 	class EdgeIterator //: public Iterator<Edge *>
 	{
 	public:
-		EdgeIterator(Edge *e) :
-				m_end(NULL),
-				m_current(e) {}
+		EdgeIterator(Edge *e) : m_end(NULL), m_current(e) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			if (m_end == NULL) m_end = m_current;
 			m_current = m_current->next;
 		}
 
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_end == m_current;
 		}
-		virtual Edge *current() const {
+		virtual Edge *current() const
+		{
 			return m_current;
 		}
-		Vertex *vertex() const {
+		Vertex *vertex() const
+		{
 			return m_current->vertex;
 		}
 
@@ -1577,10 +1713,12 @@ public:
 		Edge *m_current;
 	};
 
-	EdgeIterator edges() {
+	EdgeIterator edges()
+	{
 		return EdgeIterator(edge);
 	}
-	EdgeIterator edges(Edge *e) {
+	EdgeIterator edges(Edge *e)
+	{
 		xaDebugAssert(contains(e));
 		return EdgeIterator(e);
 	}
@@ -1589,25 +1727,25 @@ public:
 	class ConstEdgeIterator //: public Iterator<const Edge *>
 	{
 	public:
-		ConstEdgeIterator(const Edge *e) :
-				m_end(NULL),
-				m_current(e) {}
-		ConstEdgeIterator(const EdgeIterator &it) :
-				m_end(NULL),
-				m_current(it.current()) {}
-
-		virtual void advance() {
+		ConstEdgeIterator(const Edge *e) : m_end(NULL), m_current(e) { }
+		ConstEdgeIterator(const EdgeIterator &it) : m_end(NULL), m_current(it.current()) { }
+
+		virtual void advance()
+		{
 			if (m_end == NULL) m_end = m_current;
 			m_current = m_current->next;
 		}
 
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_end == m_current;
 		}
-		virtual const Edge *current() const {
+		virtual const Edge *current() const
+		{
 			return m_current;
 		}
-		const Vertex *vertex() const {
+		const Vertex *vertex() const
+		{
 			return m_current->vertex;
 		}
 
@@ -1616,22 +1754,25 @@ public:
 		const Edge *m_current;
 	};
 
-	ConstEdgeIterator edges() const {
+	ConstEdgeIterator edges() const
+	{
 		return ConstEdgeIterator(edge);
 	}
-	ConstEdgeIterator edges(const Edge *e) const {
+	ConstEdgeIterator edges(const Edge *e) const
+	{
 		xaDebugAssert(contains(e));
 		return ConstEdgeIterator(e);
 	}
 };
 
 /// Simple half edge mesh designed for dynamic mesh manipulation.
-class Mesh {
+class Mesh
+{
 public:
-	Mesh() :
-			m_colocalVertexCount(0) {}
+	Mesh() : m_colocalVertexCount(0) {}
 
-	Mesh(const Mesh *mesh) {
+	Mesh(const Mesh *mesh)
+	{
 		// Copy mesh vertices.
 		const uint32_t vertexCount = mesh->vertexCount();
 		m_vertexArray.resize(vertexCount);
@@ -1659,11 +1800,13 @@ public:
 		}
 	}
 
-	~Mesh() {
+	~Mesh()
+	{
 		clear();
 	}
 
-	void clear() {
+	void clear()
+	{
 		for (size_t i = 0; i < m_vertexArray.size(); i++)
 			delete m_vertexArray[i];
 		m_vertexArray.clear();
@@ -1676,7 +1819,8 @@ public:
 		m_faceArray.clear();
 	}
 
-	Vertex *addVertex(const Vector3 &pos) {
+	Vertex *addVertex(const Vector3 &pos)
+	{
 		xaDebugAssert(isFinite(pos));
 		Vertex *v = new Vertex(m_vertexArray.size());
 		v->pos = pos;
@@ -1685,7 +1829,8 @@ public:
 	}
 
 	/// Link colocal vertices based on geometric location only.
-	void linkColocals() {
+	void linkColocals()
+	{
 		xaPrint("--- Linking colocals:\n");
 		const uint32_t vertexCount = this->vertexCount();
 		std::unordered_map<Vector3, Vertex *, Hash<Vector3>, Equal<Vector3> > vertexMap;
@@ -1704,7 +1849,8 @@ public:
 		// @@ Remove duplicated vertices? or just leave them as colocals?
 	}
 
-	void linkColocalsWithCanonicalMap(const std::vector<uint32_t> &canonicalMap) {
+	void linkColocalsWithCanonicalMap(const std::vector<uint32_t> &canonicalMap)
+	{
 		xaPrint("--- Linking colocals:\n");
 		uint32_t vertexMapSize = 0;
 		for (uint32_t i = 0; i < canonicalMap.size(); i++) {
@@ -1728,13 +1874,15 @@ public:
 		xaPrint("---   %d vertex positions.\n", m_colocalVertexCount);
 	}
 
-	Face *addFace() {
+	Face *addFace()
+	{
 		Face *f = new Face(m_faceArray.size());
 		m_faceArray.push_back(f);
 		return f;
 	}
 
-	Face *addFace(uint32_t v0, uint32_t v1, uint32_t v2) {
+	Face *addFace(uint32_t v0, uint32_t v1, uint32_t v2)
+	{
 		uint32_t indexArray[3];
 		indexArray[0] = v0;
 		indexArray[1] = v1;
@@ -1742,6 +1890,57 @@ public:
 		return addFace(indexArray, 3, 0, 3);
 	}
 
+	Face *addFace(uint32_t v0, uint32_t v1, uint32_t v2, uint32_t v3)
+	{
+		uint32_t indexArray[4];
+		indexArray[0] = v0;
+		indexArray[1] = v1;
+		indexArray[2] = v2;
+		indexArray[3] = v3;
+		return addFace(indexArray, 4, 0, 4);
+	}
+
+	Face *addFace(const std::vector<uint32_t> &indexArray)
+	{
+		return addFace(indexArray, 0, indexArray.size());
+	}
+
+	Face *addFace(const std::vector<uint32_t> &indexArray, uint32_t first, uint32_t num)
+	{
+		return addFace(indexArray.data(), (uint32_t)indexArray.size(), first, num);
+	}
+
+	Face *addFace(const uint32_t *indexArray, uint32_t indexCount, uint32_t first, uint32_t num)
+	{
+		xaDebugAssert(first < indexCount);
+		xaDebugAssert(num <= indexCount - first);
+		xaDebugAssert(num > 2);
+		if (!canAddFace(indexArray, first, num)) {
+			return NULL;
+		}
+		Face *f = new Face(m_faceArray.size());
+		Edge *firstEdge = NULL;
+		Edge *last = NULL;
+		Edge *current = NULL;
+		for (uint32_t i = 0; i < num - 1; i++) {
+			current = addEdge(indexArray[first + i], indexArray[first + i + 1]);
+			xaAssert(current != NULL && current->face == NULL);
+			current->face = f;
+			if (last != NULL) last->setNext(current);
+			else firstEdge = current;
+			last = current;
+		}
+		current = addEdge(indexArray[first + num - 1], indexArray[first]);
+		xaAssert(current != NULL && current->face == NULL);
+		current->face = f;
+		last->setNext(current);
+		current->setNext(firstEdge);
+		f->edge = firstEdge;
+		m_faceArray.push_back(f);
+		return f;
+	}
+
+	// -- GODOT start --
 	Face *addUniqueFace(uint32_t v0, uint32_t v1, uint32_t v2) {
 
 		int base_vertex = m_vertexArray.size();
@@ -1797,59 +1996,13 @@ public:
 		indexArray[2] = base_vertex + 2;
 		return addFace(indexArray, 3, 0, 3);
 	}
-
-	Face *addFace(uint32_t v0, uint32_t v1, uint32_t v2, uint32_t v3) {
-		uint32_t indexArray[4];
-		indexArray[0] = v0;
-		indexArray[1] = v1;
-		indexArray[2] = v2;
-		indexArray[3] = v3;
-		return addFace(indexArray, 4, 0, 4);
-	}
-
-	Face *addFace(const std::vector<uint32_t> &indexArray) {
-		return addFace(indexArray, 0, indexArray.size());
-	}
-
-	Face *addFace(const std::vector<uint32_t> &indexArray, uint32_t first, uint32_t num) {
-		return addFace(indexArray.data(), (uint32_t)indexArray.size(), first, num);
-	}
-
-	Face *addFace(const uint32_t *indexArray, uint32_t indexCount, uint32_t first, uint32_t num) {
-		xaDebugAssert(first < indexCount);
-		xaDebugAssert(num <= indexCount - first);
-		xaDebugAssert(num > 2);
-		if (!canAddFace(indexArray, first, num)) {
-			return NULL;
-		}
-		Face *f = new Face(m_faceArray.size());
-		Edge *firstEdge = NULL;
-		Edge *last = NULL;
-		Edge *current = NULL;
-		for (uint32_t i = 0; i < num - 1; i++) {
-			current = addEdge(indexArray[first + i], indexArray[first + i + 1]);
-			xaAssert(current != NULL && current->face == NULL);
-			current->face = f;
-			if (last != NULL)
-				last->setNext(current);
-			else
-				firstEdge = current;
-			last = current;
-		}
-		current = addEdge(indexArray[first + num - 1], indexArray[first]);
-		xaAssert(current != NULL && current->face == NULL);
-		current->face = f;
-		last->setNext(current);
-		current->setNext(firstEdge);
-		f->edge = firstEdge;
-		m_faceArray.push_back(f);
-		return f;
-	}
+	// -- GODOT end --
 
 	// These functions disconnect the given element from the mesh and delete it.
 
 	// @@ We must always disconnect edge pairs simultaneously.
-	void disconnect(Edge *edge) {
+	void disconnect(Edge *edge)
+	{
 		xaDebugAssert(edge != NULL);
 		// Remove from edge list.
 		if ((edge->id & 1) == 0) {
@@ -1905,13 +2058,15 @@ public:
 		}
 	}
 
-	void remove(Edge *edge) {
+	void remove(Edge *edge)
+	{
 		xaDebugAssert(edge != NULL);
 		disconnect(edge);
 		delete edge;
 	}
 
-	void remove(Vertex *vertex) {
+	void remove(Vertex *vertex)
+	{
 		xaDebugAssert(vertex != NULL);
 		// Remove from vertex list.
 		m_vertexArray[vertex->id] = NULL;
@@ -1929,7 +2084,8 @@ public:
 		delete vertex;
 	}
 
-	void remove(Face *face) {
+	void remove(Face *face)
+	{
 		xaDebugAssert(face != NULL);
 		// Remove from face list.
 		m_faceArray[face->id] = NULL;
@@ -1943,7 +2099,8 @@ public:
 	}
 
 	// Triangulate in place.
-	void triangulate() {
+	void triangulate()
+	{
 		bool all_triangles = true;
 		const uint32_t faceCount = m_faceArray.size();
 		for (uint32_t f = 0; f < faceCount; f++) {
@@ -1984,7 +2141,8 @@ public:
 	}
 
 	/// Link boundary edges once the mesh has been created.
-	void linkBoundary() {
+	void linkBoundary()
+	{
 		xaPrint("--- Linking boundaries:\n");
 		int num = 0;
 		// Create boundary edges.
@@ -2058,7 +2216,7 @@ public:
 						if (t > 0.0f + NV_EPSILON && t < 1.0f - NV_EPSILON) {
 							xaDebugAssert(equal(lerp(x1, x2, t), x0));
 							Vertex *splitVertex = splitBoundaryEdge(edge, t, x0);
-							vertex->linkColocal(splitVertex); // @@ Should we do this here?
+							vertex->linkColocal(splitVertex);   // @@ Should we do this here?
 							splitCount++;
 						}
 					}
@@ -2071,59 +2229,70 @@ public:
 	}
 
 	// Vertices
-	uint32_t vertexCount() const {
+	uint32_t vertexCount() const
+	{
 		return m_vertexArray.size();
 	}
-	const Vertex *vertexAt(int i) const {
+	const Vertex *vertexAt(int i) const
+	{
 		return m_vertexArray[i];
 	}
-	Vertex *vertexAt(int i) {
+	Vertex *vertexAt(int i)
+	{
 		return m_vertexArray[i];
 	}
 
-	uint32_t colocalVertexCount() const {
+	uint32_t colocalVertexCount() const
+	{
 		return m_colocalVertexCount;
 	}
 
 	// Faces
-	uint32_t faceCount() const {
+	uint32_t faceCount() const
+	{
 		return m_faceArray.size();
 	}
-	const Face *faceAt(int i) const {
+	const Face *faceAt(int i) const
+	{
 		return m_faceArray[i];
 	}
-	Face *faceAt(int i) {
+	Face *faceAt(int i)
+	{
 		return m_faceArray[i];
 	}
 
 	// Edges
-	uint32_t edgeCount() const {
+	uint32_t edgeCount() const
+	{
 		return m_edgeArray.size();
 	}
-	const Edge *edgeAt(int i) const {
+	const Edge *edgeAt(int i) const
+	{
 		return m_edgeArray[i];
 	}
-	Edge *edgeAt(int i) {
+	Edge *edgeAt(int i)
+	{
 		return m_edgeArray[i];
 	}
 
 	class ConstVertexIterator;
 
-	class VertexIterator {
+	class VertexIterator
+	{
 		friend class ConstVertexIterator;
-
 	public:
-		VertexIterator(Mesh *mesh) :
-				m_mesh(mesh),
-				m_current(0) {}
+		VertexIterator(Mesh *mesh) : m_mesh(mesh), m_current(0) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			m_current++;
 		}
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_current == m_mesh->vertexCount();
 		}
-		virtual Vertex *current() const {
+		virtual Vertex *current() const
+		{
 			return m_mesh->vertexAt(m_current);
 		}
 
@@ -2131,26 +2300,27 @@ public:
 		halfedge::Mesh *m_mesh;
 		uint32_t m_current;
 	};
-	VertexIterator vertices() {
+	VertexIterator vertices()
+	{
 		return VertexIterator(this);
 	}
 
-	class ConstVertexIterator {
+	class ConstVertexIterator
+	{
 	public:
-		ConstVertexIterator(const Mesh *mesh) :
-				m_mesh(mesh),
-				m_current(0) {}
-		ConstVertexIterator(class VertexIterator &it) :
-				m_mesh(it.m_mesh),
-				m_current(it.m_current) {}
-
-		virtual void advance() {
+		ConstVertexIterator(const Mesh *mesh) : m_mesh(mesh), m_current(0) { }
+		ConstVertexIterator(class VertexIterator &it) : m_mesh(it.m_mesh), m_current(it.m_current) { }
+
+		virtual void advance()
+		{
 			m_current++;
 		}
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_current == m_mesh->vertexCount();
 		}
-		virtual const Vertex *current() const {
+		virtual const Vertex *current() const
+		{
 			return m_mesh->vertexAt(m_current);
 		}
 
@@ -2158,27 +2328,29 @@ public:
 		const halfedge::Mesh *m_mesh;
 		uint32_t m_current;
 	};
-	ConstVertexIterator vertices() const {
+	ConstVertexIterator vertices() const
+	{
 		return ConstVertexIterator(this);
 	}
 
 	class ConstFaceIterator;
 
-	class FaceIterator {
+	class FaceIterator
+	{
 		friend class ConstFaceIterator;
-
 	public:
-		FaceIterator(Mesh *mesh) :
-				m_mesh(mesh),
-				m_current(0) {}
+		FaceIterator(Mesh *mesh) : m_mesh(mesh), m_current(0) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			m_current++;
 		}
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_current == m_mesh->faceCount();
 		}
-		virtual Face *current() const {
+		virtual Face *current() const
+		{
 			return m_mesh->faceAt(m_current);
 		}
 
@@ -2186,26 +2358,27 @@ public:
 		halfedge::Mesh *m_mesh;
 		uint32_t m_current;
 	};
-	FaceIterator faces() {
+	FaceIterator faces()
+	{
 		return FaceIterator(this);
 	}
 
-	class ConstFaceIterator {
+	class ConstFaceIterator
+	{
 	public:
-		ConstFaceIterator(const Mesh *mesh) :
-				m_mesh(mesh),
-				m_current(0) {}
-		ConstFaceIterator(const FaceIterator &it) :
-				m_mesh(it.m_mesh),
-				m_current(it.m_current) {}
-
-		virtual void advance() {
+		ConstFaceIterator(const Mesh *mesh) : m_mesh(mesh), m_current(0) { }
+		ConstFaceIterator(const FaceIterator &it) : m_mesh(it.m_mesh), m_current(it.m_current) { }
+
+		virtual void advance()
+		{
 			m_current++;
 		}
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_current == m_mesh->faceCount();
 		}
-		virtual const Face *current() const {
+		virtual const Face *current() const
+		{
 			return m_mesh->faceAt(m_current);
 		}
 
@@ -2213,27 +2386,29 @@ public:
 		const halfedge::Mesh *m_mesh;
 		uint32_t m_current;
 	};
-	ConstFaceIterator faces() const {
+	ConstFaceIterator faces() const
+	{
 		return ConstFaceIterator(this);
 	}
 
 	class ConstEdgeIterator;
 
-	class EdgeIterator {
+	class EdgeIterator
+	{
 		friend class ConstEdgeIterator;
-
 	public:
-		EdgeIterator(Mesh *mesh) :
-				m_mesh(mesh),
-				m_current(0) {}
+		EdgeIterator(Mesh *mesh) : m_mesh(mesh), m_current(0) { }
 
-		virtual void advance() {
+		virtual void advance()
+		{
 			m_current++;
 		}
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_current == m_mesh->edgeCount();
 		}
-		virtual Edge *current() const {
+		virtual Edge *current() const
+		{
 			return m_mesh->edgeAt(m_current);
 		}
 
@@ -2241,26 +2416,27 @@ public:
 		halfedge::Mesh *m_mesh;
 		uint32_t m_current;
 	};
-	EdgeIterator edges() {
+	EdgeIterator edges()
+	{
 		return EdgeIterator(this);
 	}
 
-	class ConstEdgeIterator {
+	class ConstEdgeIterator
+	{
 	public:
-		ConstEdgeIterator(const Mesh *mesh) :
-				m_mesh(mesh),
-				m_current(0) {}
-		ConstEdgeIterator(const EdgeIterator &it) :
-				m_mesh(it.m_mesh),
-				m_current(it.m_current) {}
-
-		virtual void advance() {
+		ConstEdgeIterator(const Mesh *mesh) : m_mesh(mesh), m_current(0) { }
+		ConstEdgeIterator(const EdgeIterator &it) : m_mesh(it.m_mesh), m_current(it.m_current) { }
+
+		virtual void advance()
+		{
 			m_current++;
 		}
-		virtual bool isDone() const {
+		virtual bool isDone() const
+		{
 			return m_current == m_mesh->edgeCount();
 		}
-		virtual const Edge *current() const {
+		virtual const Edge *current() const
+		{
 			return m_mesh->edgeAt(m_current);
 		}
 
@@ -2268,13 +2444,15 @@ public:
 		const halfedge::Mesh *m_mesh;
 		uint32_t m_current;
 	};
-	ConstEdgeIterator edges() const {
+	ConstEdgeIterator edges() const
+	{
 		return ConstEdgeIterator(this);
 	}
 
 	// @@ Add half-edge iterator.
 
-	bool isValid() const {
+	bool isValid() const
+	{
 		// Make sure all edges are valid.
 		const uint32_t edgeCount = m_edgeArray.size();
 		for (uint32_t e = 0; e < edgeCount; e++) {
@@ -2300,9 +2478,11 @@ public:
 	}
 
 	// Error status:
-
-	struct ErrorCode {
-		enum Enum {
+	
+	struct ErrorCode
+	{
+		enum Enum
+		{
 			AlreadyAddedEdge,
 			DegenerateColocalEdge,
 			DegenerateEdge,
@@ -2316,11 +2496,13 @@ public:
 
 private:
 	// Return true if the face can be added to the manifold mesh.
-	bool canAddFace(const std::vector<uint32_t> &indexArray, uint32_t first, uint32_t num) const {
+	bool canAddFace(const std::vector<uint32_t> &indexArray, uint32_t first, uint32_t num) const
+	{
 		return canAddFace(indexArray.data(), first, num);
 	}
 
-	bool canAddFace(const uint32_t *indexArray, uint32_t first, uint32_t num) const {
+	bool canAddFace(const uint32_t *indexArray, uint32_t first, uint32_t num) const
+	{
 		for (uint32_t j = num - 1, i = 0; i < num; j = i++) {
 			if (!canAddEdge(indexArray[first + j], indexArray[first + i])) {
 				errorIndex0 = indexArray[first + j];
@@ -2347,7 +2529,8 @@ private:
 	}
 
 	// Return true if the edge doesn't exist or doesn't have any adjacent face.
-	bool canAddEdge(uint32_t i, uint32_t j) const {
+	bool canAddEdge(uint32_t i, uint32_t j) const
+	{
 		if (i == j) {
 			// Skip degenerate edges.
 			errorCode = ErrorCode::DegenerateEdge;
@@ -2373,7 +2556,8 @@ private:
 		return true;
 	}
 
-	Edge *addEdge(uint32_t i, uint32_t j) {
+	Edge *addEdge(uint32_t i, uint32_t j)
+	{
 		xaAssert(i != j);
 		Edge *edge = findEdge(i, j);
 		if (edge != NULL) {
@@ -2406,7 +2590,8 @@ private:
 	}
 
 	/// Find edge, test all colocals.
-	Edge *findEdge(uint32_t i, uint32_t j) const {
+	Edge *findEdge(uint32_t i, uint32_t j) const
+	{
 		Edge *edge = NULL;
 		const Vertex *v0 = vertexAt(i);
 		const Vertex *v1 = vertexAt(j);
@@ -2418,9 +2603,9 @@ private:
 					auto edgeIt = m_edgeMap.find(key);
 					if (edgeIt != m_edgeMap.end())
 						edge = (*edgeIt).second;
-#if !defined(_DEBUG)
+	#if !defined(_DEBUG)
 					if (edge != NULL) return edge;
-#endif
+	#endif
 				} else {
 					// Make sure that only one edge is found.
 					xaDebugAssert(m_edgeMap.find(key) == m_edgeMap.end());
@@ -2431,7 +2616,8 @@ private:
 	}
 
 	/// Link this boundary edge.
-	void linkBoundaryEdge(Edge *edge) {
+	void linkBoundaryEdge(Edge *edge)
+	{
 		xaAssert(edge->face == NULL);
 		// Make sure next pointer has not been set. @@ We want to be able to relink boundary edges after mesh changes.
 		Edge *next = edge;
@@ -2451,7 +2637,8 @@ private:
 		}
 	}
 
-	Vertex *splitBoundaryEdge(Edge *edge, float t, const Vector3 &pos) {
+	Vertex *splitBoundaryEdge(Edge *edge, float t, const Vector3 &pos)
+	{
 		/*
 		  We want to go from this configuration:
 
@@ -2521,19 +2708,18 @@ private:
 	std::vector<Edge *> m_edgeArray;
 	std::vector<Face *> m_faceArray;
 
-	struct Key {
+	struct Key
+	{
 		Key() {}
-		Key(const Key &k) :
-				p0(k.p0),
-				p1(k.p1) {}
-		Key(uint32_t v0, uint32_t v1) :
-				p0(v0),
-				p1(v1) {}
-		void operator=(const Key &k) {
+		Key(const Key &k) : p0(k.p0), p1(k.p1) {}
+		Key(uint32_t v0, uint32_t v1) : p0(v0), p1(v1) {}
+		void operator=(const Key &k)
+		{
 			p0 = k.p0;
 			p1 = k.p1;
 		}
-		bool operator==(const Key &k) const {
+		bool operator==(const Key &k) const
+		{
 			return p0 == k.p0 && p1 == k.p1;
 		}
 
@@ -2546,48 +2732,54 @@ private:
 	uint32_t m_colocalVertexCount;
 };
 
-class MeshTopology {
+class MeshTopology
+{
 public:
-	MeshTopology(const Mesh *mesh) {
+	MeshTopology(const Mesh *mesh)
+	{
 		buildTopologyInfo(mesh);
 	}
 
 	/// Determine if the mesh is connected.
-	bool isConnected() const {
+	bool isConnected() const
+	{
 		return m_connectedCount == 1;
 	}
 
 	/// Determine if the mesh is closed. (Each edge is shared by two faces)
-	bool isClosed() const {
+	bool isClosed() const
+	{
 		return m_boundaryCount == 0;
 	}
 
 	/// Return true if the mesh has the topology of a disk.
-	bool isDisk() const {
-		return isConnected() && m_boundaryCount == 1 /* && m_eulerNumber == 1*/;
+	bool isDisk() const
+	{
+		return isConnected() && m_boundaryCount == 1/* && m_eulerNumber == 1*/;
 	}
 
 private:
-	void buildTopologyInfo(const Mesh *mesh) {
+	void buildTopologyInfo(const Mesh *mesh)
+	{
 		const uint32_t vertexCount = mesh->colocalVertexCount();
 		const uint32_t faceCount = mesh->faceCount();
 		const uint32_t edgeCount = mesh->edgeCount();
-		xaPrint("--- Building mesh topology:\n");
+		xaPrint( "--- Building mesh topology:\n" );
 		std::vector<uint32_t> stack(faceCount);
 		BitArray bitFlags(faceCount);
 		bitFlags.clearAll();
 		// Compute connectivity.
-		xaPrint("---   Computing connectivity.\n");
+		xaPrint( "---   Computing connectivity.\n" );
 		m_connectedCount = 0;
-		for (uint32_t f = 0; f < faceCount; f++) {
-			if (bitFlags.bitAt(f) == false) {
+		for (uint32_t f = 0; f < faceCount; f++ ) {
+			if ( bitFlags.bitAt(f) == false ) {
 				m_connectedCount++;
-				stack.push_back(f);
-				while (!stack.empty()) {
+				stack.push_back( f );
+				while ( !stack.empty() ) {
 					const uint32_t top = stack.back();
 					xaAssert(top != uint32_t(~0));
 					stack.pop_back();
-					if (bitFlags.bitAt(top) == false) {
+					if ( bitFlags.bitAt(top) == false ) {
 						bitFlags.setBitAt(top);
 						const Face *face = mesh->faceAt(top);
 						const Edge *firstEdge = face->edge;
@@ -2604,9 +2796,9 @@ private:
 			}
 		}
 		xaAssert(stack.empty());
-		xaPrint("---   %d connected components.\n", m_connectedCount);
+		xaPrint( "---   %d connected components.\n", m_connectedCount );
 		// Count boundary loops.
-		xaPrint("---   Counting boundary loops.\n");
+		xaPrint( "---   Counting boundary loops.\n" );
 		m_boundaryCount = 0;
 		bitFlags.resize(edgeCount);
 		bitFlags.clearAll();
@@ -2625,13 +2817,13 @@ private:
 				} while (startEdge != edge);
 			}
 		}
-		xaPrint("---   %d boundary loops found.\n", m_boundaryCount);
+		xaPrint("---   %d boundary loops found.\n", m_boundaryCount );
 		// Compute euler number.
 		m_eulerNumber = vertexCount - edgeCount + faceCount;
 		xaPrint("---   Euler number: %d.\n", m_eulerNumber);
 		// Compute genus. (only valid on closed connected surfaces)
 		m_genus = -1;
-		if (isClosed() && isConnected()) {
+		if ( isClosed() && isConnected() ) {
 			m_genus = (2 - m_eulerNumber) / 2;
 			xaPrint("---   Genus: %d.\n", m_genus);
 		}
@@ -2651,7 +2843,8 @@ private:
 	int m_genus;
 };
 
-float computeSurfaceArea(const halfedge::Mesh *mesh) {
+float computeSurfaceArea(const halfedge::Mesh *mesh)
+{
 	float area = 0;
 	for (halfedge::Mesh::ConstFaceIterator it(mesh->faces()); !it.isDone(); it.advance()) {
 		const halfedge::Face *face = it.current();
@@ -2661,7 +2854,8 @@ float computeSurfaceArea(const halfedge::Mesh *mesh) {
 	return area;
 }
 
-float computeParametricArea(const halfedge::Mesh *mesh) {
+float computeParametricArea(const halfedge::Mesh *mesh)
+{
 	float area = 0;
 	for (halfedge::Mesh::ConstFaceIterator it(mesh->faces()); !it.isDone(); it.advance()) {
 		const halfedge::Face *face = it.current();
@@ -2670,7 +2864,8 @@ float computeParametricArea(const halfedge::Mesh *mesh) {
 	return area;
 }
 
-uint32_t countMeshTriangles(const Mesh *mesh) {
+uint32_t countMeshTriangles(const Mesh *mesh)
+{
 	const uint32_t faceCount = mesh->faceCount();
 	uint32_t triangleCount = 0;
 	for (uint32_t f = 0; f < faceCount; f++) {
@@ -2682,7 +2877,8 @@ uint32_t countMeshTriangles(const Mesh *mesh) {
 	return triangleCount;
 }
 
-Mesh *unifyVertices(const Mesh *inputMesh) {
+Mesh *unifyVertices(const Mesh *inputMesh)
+{
 	Mesh *mesh = new Mesh;
 	// Only add the first colocal.
 	const uint32_t vertexCount = inputMesh->vertexCount();
@@ -2709,15 +2905,17 @@ Mesh *unifyVertices(const Mesh *inputMesh) {
 	return mesh;
 }
 
-static bool pointInTriangle(const Vector2 &p, const Vector2 &a, const Vector2 &b, const Vector2 &c) {
+static bool pointInTriangle(const Vector2 &p, const Vector2 &a, const Vector2 &b, const Vector2 &c)
+{
 	return triangleArea(a, b, p) >= 0.00001f &&
-		   triangleArea(b, c, p) >= 0.00001f &&
-		   triangleArea(c, a, p) >= 0.00001f;
+	       triangleArea(b, c, p) >= 0.00001f &&
+	       triangleArea(c, a, p) >= 0.00001f;
 }
 
 // This is doing a simple ear-clipping algorithm that skips invalid triangles. Ideally, we should
 // also sort the ears by angle, start with the ones that have the smallest angle and proceed in order.
-Mesh *triangulate(const Mesh *inputMesh) {
+Mesh *triangulate(const Mesh *inputMesh)
+{
 	Mesh *mesh = new Mesh;
 	// Add all vertices.
 	const uint32_t vertexCount = inputMesh->vertexCount();
@@ -2782,10 +2980,12 @@ Mesh *triangulate(const Mesh *inputMesh) {
 					Vector2 p1 = polygonPoints[i1];
 					Vector2 p2 = polygonPoints[i2];
 
+					// -- GODOT start --
 					bool degenerate = distance(p0, p1) < NV_EPSILON || distance(p0, p2) < NV_EPSILON || distance(p1, p2) < NV_EPSILON;
 					if (degenerate) {
 						continue;
 					}
+					// -- GODOT end --
 
 					float d = clamp(dot(p0 - p1, p2 - p1) / (length(p0 - p1) * length(p2 - p1)), -1.0f, 1.0f);
 					float angle = acosf(d);
@@ -2810,8 +3010,10 @@ Mesh *triangulate(const Mesh *inputMesh) {
 						}
 					}
 				}
+				// -- GODOT start --
 				if (!bestIsValid)
 					break;
+				// -- GODOT end --
 
 				xaDebugAssert(minAngle <= 2 * PI);
 				// Clip best ear:
@@ -2835,59 +3037,66 @@ Mesh *triangulate(const Mesh *inputMesh) {
 } //  namespace halfedge
 
 /// Mersenne twister random number generator.
-class MTRand {
+class MTRand
+{
 public:
 	enum time_e { Time };
-	enum { N = 624 }; // length of state vector
+	enum { N = 624 };       // length of state vector
 	enum { M = 397 };
 
 	/// Constructor that uses the current time as the seed.
-	MTRand(time_e) {
-		seed((uint32_t)time(NULL));
+	MTRand( time_e )
+	{
+		seed((uint32_t )time(NULL));
 	}
 
 	/// Constructor that uses the given seed.
-	MTRand(uint32_t s = 0) {
+	MTRand( uint32_t s = 0 )
+	{
 		seed(s);
 	}
 
 	/// Provide a new seed.
-	void seed(uint32_t s) {
+	void seed( uint32_t s )
+	{
 		initialize(s);
 		reload();
 	}
 
 	/// Get a random number between 0 - 65536.
-	uint32_t get() {
+	uint32_t get()
+	{
 		// Pull a 32-bit integer from the generator state
 		// Every other access function simply transforms the numbers extracted here
-		if (left == 0) {
+		if ( left == 0 ) {
 			reload();
 		}
 		left--;
 		uint32_t s1;
 		s1 = *next++;
 		s1 ^= (s1 >> 11);
-		s1 ^= (s1 << 7) & 0x9d2c5680U;
+		s1 ^= (s1 <<  7) & 0x9d2c5680U;
 		s1 ^= (s1 << 15) & 0xefc60000U;
-		return (s1 ^ (s1 >> 18));
+		return ( s1 ^ (s1 >> 18) );
 	};
 
 	/// Get a random number on [0, max] interval.
-	uint32_t getRange(uint32_t max) {
+	uint32_t getRange( uint32_t max )
+	{
 		if (max == 0) return 0;
 		if (max == NV_UINT32_MAX) return get();
-		const uint32_t np2 = nextPowerOfTwo(max + 1); // @@ This fails if max == NV_UINT32_MAX
+		const uint32_t np2 = nextPowerOfTwo( max + 1 ); // @@ This fails if max == NV_UINT32_MAX
 		const uint32_t mask = np2 - 1;
 		uint32_t n;
 		do {
 			n = get() & mask;
-		} while (n > max);
+		} while ( n > max );
 		return n;
 	}
 
 private:
-	void initialize(uint32_t seed) {
+	void initialize( uint32_t seed )
+	{
 		// Initialize generator state with seed
 		// See Knuth TAOCP Vol 2, 3rd Ed, p.106 for multiplier.
 		// In previous versions, most significant bits (MSBs) of the seed affect
@@ -2896,44 +3105,50 @@ private:
 		uint32_t *r = state;
 		int i = 1;
 		*s++ = seed & 0xffffffffUL;
-		for (; i < N; ++i) {
-			*s++ = (1812433253UL * (*r ^ (*r >> 30)) + i) & 0xffffffffUL;
+		for ( ; i < N; ++i ) {
+			*s++ = ( 1812433253UL * ( *r ^ (*r >> 30) ) + i ) & 0xffffffffUL;
 			r++;
 		}
 	}
 
-	void reload() {
+	void reload()
+	{
 		// Generate N new values in state
 		// Made clearer and faster by Matthew Bellew (matthew.bellew@home.com)
 		uint32_t *p = state;
 		int i;
-		for (i = N - M; i--; ++p)
-			*p = twist(p[M], p[0], p[1]);
-		for (i = M; --i; ++p)
-			*p = twist(p[M - N], p[0], p[1]);
-		*p = twist(p[M - N], p[0], state[0]);
+		for ( i = N - M; i--; ++p )
+			*p = twist( p[M], p[0], p[1] );
+		for ( i = M; --i; ++p )
+			*p = twist( p[M - N], p[0], p[1] );
+		*p = twist( p[M - N], p[0], state[0] );
 		left = N, next = state;
 	}
 
-	uint32_t hiBit(uint32_t u) const {
+	uint32_t hiBit( uint32_t u ) const
+	{
 		return u & 0x80000000U;
 	}
-	uint32_t loBit(uint32_t u) const {
+	uint32_t loBit( uint32_t u ) const
+	{
 		return u & 0x00000001U;
 	}
-	uint32_t loBits(uint32_t u) const {
+	uint32_t loBits( uint32_t u ) const
+	{
 		return u & 0x7fffffffU;
 	}
-	uint32_t mixBits(uint32_t u, uint32_t v) const {
+	uint32_t mixBits( uint32_t u, uint32_t v ) const
+	{
 		return hiBit(u) | loBits(v);
 	}
-	uint32_t twist(uint32_t m, uint32_t s0, uint32_t s1) const {
+	uint32_t twist( uint32_t m, uint32_t s0, uint32_t s1 ) const
+	{
 		return m ^ (mixBits(s0, s1) >> 1) ^ ((~loBit(s1) + 1) & 0x9908b0dfU);
 	}
 
-	uint32_t state[N]; // internal state
-	uint32_t *next; // next value to get from state
-	int left; // number of values left before reload needed
+	uint32_t state[N];	// internal state
+	uint32_t *next;	// next value to get from state
+	int left;		// number of values left before reload needed
 };
 
 namespace morton {
@@ -2941,50 +3156,59 @@ namespace morton {
 // http://fgiesen.wordpress.com/2009/12/13/decoding-morton-codes/
 
 // Inverse of part1By1 - "delete" all odd-indexed bits
-uint32_t compact1By1(uint32_t x) {
-	x &= 0x55555555; // x = -f-e -d-c -b-a -9-8 -7-6 -5-4 -3-2 -1-0
-	x = (x ^ (x >> 1)) & 0x33333333; // x = --fe --dc --ba --98 --76 --54 --32 --10
-	x = (x ^ (x >> 2)) & 0x0f0f0f0f; // x = ---- fedc ---- ba98 ---- 7654 ---- 3210
-	x = (x ^ (x >> 4)) & 0x00ff00ff; // x = ---- ---- fedc ba98 ---- ---- 7654 3210
-	x = (x ^ (x >> 8)) & 0x0000ffff; // x = ---- ---- ---- ---- fedc ba98 7654 3210
+uint32_t compact1By1(uint32_t x)
+{
+	x &= 0x55555555;                  // x = -f-e -d-c -b-a -9-8 -7-6 -5-4 -3-2 -1-0
+	x = (x ^ (x >>  1)) & 0x33333333; // x = --fe --dc --ba --98 --76 --54 --32 --10
+	x = (x ^ (x >>  2)) & 0x0f0f0f0f; // x = ---- fedc ---- ba98 ---- 7654 ---- 3210
+	x = (x ^ (x >>  4)) & 0x00ff00ff; // x = ---- ---- fedc ba98 ---- ---- 7654 3210
+	x = (x ^ (x >>  8)) & 0x0000ffff; // x = ---- ---- ---- ---- fedc ba98 7654 3210
 	return x;
 }
 
 // Inverse of part1By2 - "delete" all bits not at positions divisible by 3
-uint32_t compact1By2(uint32_t x) {
-	x &= 0x09249249; // x = ---- 9--8 --7- -6-- 5--4 --3- -2-- 1--0
-	x = (x ^ (x >> 2)) & 0x030c30c3; // x = ---- --98 ---- 76-- --54 ---- 32-- --10
-	x = (x ^ (x >> 4)) & 0x0300f00f; // x = ---- --98 ---- ---- 7654 ---- ---- 3210
-	x = (x ^ (x >> 8)) & 0xff0000ff; // x = ---- --98 ---- ---- ---- ---- 7654 3210
+uint32_t compact1By2(uint32_t x)
+{
+	x &= 0x09249249;                  // x = ---- 9--8 --7- -6-- 5--4 --3- -2-- 1--0
+	x = (x ^ (x >>  2)) & 0x030c30c3; // x = ---- --98 ---- 76-- --54 ---- 32-- --10
+	x = (x ^ (x >>  4)) & 0x0300f00f; // x = ---- --98 ---- ---- 7654 ---- ---- 3210
+	x = (x ^ (x >>  8)) & 0xff0000ff; // x = ---- --98 ---- ---- ---- ---- 7654 3210
 	x = (x ^ (x >> 16)) & 0x000003ff; // x = ---- ---- ---- ---- ---- --98 7654 3210
 	return x;
 }
 
-uint32_t decodeMorton2X(uint32_t code) {
+uint32_t decodeMorton2X(uint32_t code)
+{
 	return compact1By1(code >> 0);
 }
 
-uint32_t decodeMorton2Y(uint32_t code) {
+uint32_t decodeMorton2Y(uint32_t code)
+{
 	return compact1By1(code >> 1);
 }
 
-uint32_t decodeMorton3X(uint32_t code) {
+uint32_t decodeMorton3X(uint32_t code)
+{
 	return compact1By2(code >> 0);
 }
 
-uint32_t decodeMorton3Y(uint32_t code) {
+uint32_t decodeMorton3Y(uint32_t code)
+{
 	return compact1By2(code >> 1);
 }
 
-uint32_t decodeMorton3Z(uint32_t code) {
+uint32_t decodeMorton3Z(uint32_t code)
+{
 	return compact1By2(code >> 2);
 }
 } // namespace morton
 
 // A simple, dynamic proximity grid based on Jon's code.
 // Instead of storing pointers here I store indices.
-struct ProximityGrid {
-	void init(const Box &box, uint32_t count) {
+struct ProximityGrid 
+{
+	void init(const Box &box, uint32_t count)
+	{
 		cellArray.clear();
 		// Determine grid size.
 		float cellWidth;
@@ -3021,19 +3245,23 @@ struct ProximityGrid {
 		corner = box.minCorner; // @@ Align grid better?
 	}
 
-	int index_x(float x) const {
-		return clamp(ftoi_floor((x - corner.x) * invCellSize.x), 0, sx - 1);
+	int index_x(float x) const
+	{
+		return clamp(ftoi_floor((x - corner.x) * invCellSize.x),  0, sx - 1);
 	}
 
-	int index_y(float y) const {
-		return clamp(ftoi_floor((y - corner.y) * invCellSize.y), 0, sy - 1);
+	int index_y(float y) const
+	{
+		return clamp(ftoi_floor((y - corner.y) * invCellSize.y),  0, sy - 1);
 	}
 
-	int index_z(float z) const {
-		return clamp(ftoi_floor((z - corner.z) * invCellSize.z), 0, sz - 1);
+	int index_z(float z) const
+	{
+		return clamp(ftoi_floor((z - corner.z) * invCellSize.z),  0, sz - 1);
 	}
 
-	int index(int x, int y, int z) const {
+	int index(int x, int y, int z) const
+	{
 		xaDebugAssert(x >= 0 && x < sx);
 		xaDebugAssert(y >= 0 && y < sy);
 		xaDebugAssert(z >= 0 && z < sz);
@@ -3042,7 +3270,8 @@ struct ProximityGrid {
 		return idx;
 	}
 
-	uint32_t mortonCount() const {
+	uint32_t mortonCount() const
+	{
 		uint64_t s = uint64_t(max3(sx, sy, sz));
 		s = nextPowerOfTwo(s);
 		if (s > 1024) {
@@ -3051,7 +3280,8 @@ struct ProximityGrid {
 		return uint32_t(s * s * s);
 	}
 
-	int mortonIndex(uint32_t code) const {
+	int mortonIndex(uint32_t code) const
+	{
 		uint32_t x, y, z;
 		uint32_t s = uint32_t(max3(sx, sy, sz));
 		if (s > 1024) {
@@ -3084,7 +3314,8 @@ struct ProximityGrid {
 		return index(x, y, z);
 	}
 
-	void add(const Vector3 &pos, uint32_t key) {
+	void add(const Vector3 &pos, uint32_t key)
+	{
 		int x = index_x(pos.x);
 		int y = index_y(pos.y);
 		int z = index_z(pos.z);
@@ -3094,7 +3325,8 @@ struct ProximityGrid {
 
 	// Gather all points inside the given sphere.
 	// Radius is assumed to be small, so we don't bother culling the cells.
-	void gather(const Vector3 &position, float radius, std::vector<uint32_t> &indexArray) {
+	void gather(const Vector3 &position, float radius, std::vector<uint32_t> &indexArray)
+	{
 		int x0 = index_x(position.x - radius);
 		int x1 = index_x(position.x + radius);
 		int y0 = index_y(position.y - radius);
@@ -3125,26 +3357,25 @@ struct ProximityGrid {
 // Based on Pierre Terdiman's and Michael Herf's source code.
 // http://www.codercorner.com/RadixSortRevisited.htm
 // http://www.stereopsis.com/radix.html
-class RadixSort {
+class RadixSort
+{
 public:
-	RadixSort() :
-			m_size(0),
-			m_ranks(NULL),
-			m_ranks2(NULL),
-			m_validRanks(false) {}
-	~RadixSort() {
+	RadixSort() : m_size(0), m_ranks(NULL), m_ranks2(NULL), m_validRanks(false) {}
+	~RadixSort()
+	{
 		// Release everything
 		free(m_ranks2);
 		free(m_ranks);
 	}
 
-	RadixSort &sort(const float *input, uint32_t count) {
+	RadixSort &sort(const float *input, uint32_t count)
+	{
 		if (input == NULL || count == 0) return *this;
 		// Resize lists if needed
 		if (count != m_size) {
 			if (count > m_size) {
-				m_ranks2 = (uint32_t *)realloc(m_ranks2, sizeof(uint32_t) * count);
-				m_ranks = (uint32_t *)realloc(m_ranks, sizeof(uint32_t) * count);
+				m_ranks2 = (uint32_t *)realloc(m_ranks2, sizeof(uint32_t ) * count);
+				m_ranks = (uint32_t *)realloc(m_ranks, sizeof(uint32_t ) * count);
 			}
 			m_size = count;
 			m_validRanks = false;
@@ -3164,16 +3395,19 @@ public:
 		return *this;
 	}
 
-	RadixSort &sort(const std::vector<float> &input) {
+	RadixSort &sort(const std::vector<float> &input)
+	{
 		return sort(input.data(), input.size());
 	}
 
 	// Access to results. m_ranks is a list of indices in sorted order, i.e. in the order you may further process your data
-	const uint32_t *ranks() const {
+	const uint32_t *ranks() const
+	{
 		xaDebugAssert(m_validRanks);
 		return m_ranks;
 	}
-	uint32_t *ranks() {
+	uint32_t *ranks()
+	{
 		xaDebugAssert(m_validRanks);
 		return m_ranks;
 	}
@@ -3184,18 +3418,21 @@ private:
 	uint32_t *m_ranks2;
 	bool m_validRanks;
 
-	void FloatFlip(uint32_t &f) {
+	void FloatFlip(uint32_t &f)
+	{
 		int32_t mask = (int32_t(f) >> 31) | 0x80000000; // Warren Hunt, Manchor Ko.
 		f ^= mask;
 	}
 
-	void IFloatFlip(uint32_t &f) {
+	void IFloatFlip(uint32_t &f)
+	{
 		uint32_t mask = ((f >> 31) - 1) | 0x80000000; // Michael Herf.
 		f ^= mask;
 	}
 
-	template <typename T>
-	void createHistograms(const T *buffer, uint32_t count, uint32_t *histogram) {
+	template<typename T>
+	void createHistograms(const T *buffer, uint32_t count, uint32_t *histogram)
+	{
 		const uint32_t bucketCount = sizeof(T); // (8 * sizeof(T)) / log2(radix)
 		// Init bucket pointers.
 		uint32_t *h[bucketCount];
@@ -3203,10 +3440,10 @@ private:
 			h[i] = histogram + 256 * i;
 		}
 		// Clear histograms.
-		memset(histogram, 0, 256 * bucketCount * sizeof(uint32_t));
+		memset(histogram, 0, 256 * bucketCount * sizeof(uint32_t ));
 		// @@ Add support for signed integers.
 		// Build histograms.
-		const uint8_t *p = (const uint8_t *)buffer; // @@ Does this break aliasing rules?
+		const uint8_t *p = (const uint8_t *)buffer;  // @@ Does this break aliasing rules?
 		const uint8_t *pe = p + count * sizeof(T);
 		while (p != pe) {
 			h[0][*p++]++, h[1][*p++]++, h[2][*p++]++, h[3][*p++]++;
@@ -3221,8 +3458,8 @@ private:
 		}
 	}
 
-	template <typename T>
-	void insertionSort(const T *input, uint32_t count) {
+	template <typename T> void insertionSort(const T *input, uint32_t count)
+	{
 		if (!m_validRanks) {
 			m_ranks[0] = 0;
 			for (uint32_t i = 1; i != count; ++i) {
@@ -3252,8 +3489,8 @@ private:
 		}
 	}
 
-	template <typename T>
-	void radixSort(const T *input, uint32_t count) {
+	template <typename T> void radixSort(const T *input, uint32_t count)
+	{
 		const uint32_t P = sizeof(T); // pass count
 		// Allocate histograms & offsets on the stack
 		uint32_t histogram[256 * P];
@@ -3271,8 +3508,7 @@ private:
 			}
 			// Create offsets
 			link[0] = m_ranks2;
-			for (uint32_t i = 1; i < 256; i++)
-				link[i] = link[i - 1] + h[i - 1];
+			for (uint32_t i = 1; i < 256; i++) link[i] = link[i - 1] + h[i - 1];
 			// Perform Radix Sort
 			if (!m_validRanks) {
 				for (uint32_t i = 0; i < count; i++) {
@@ -3299,9 +3535,11 @@ private:
 };
 
 namespace raster {
-class ClippedTriangle {
+class ClippedTriangle
+{
 public:
-	ClippedTriangle(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c) {
+	ClippedTriangle(Vector2::Arg a, Vector2::Arg b, Vector2::Arg c)
+	{
 		m_numVertices = 3;
 		m_activeVertexBuffer = 0;
 		m_verticesA[0] = a;
@@ -3311,27 +3549,30 @@ public:
 		m_vertexBuffers[1] = m_verticesB;
 	}
 
-	uint32_t vertexCount() {
+	uint32_t vertexCount()
+	{
 		return m_numVertices;
 	}
 
-	const Vector2 *vertices() {
+	const Vector2 *vertices()
+	{
 		return m_vertexBuffers[m_activeVertexBuffer];
 	}
 
-	void clipHorizontalPlane(float offset, float clipdirection) {
-		Vector2 *v = m_vertexBuffers[m_activeVertexBuffer];
+	void clipHorizontalPlane(float offset, float clipdirection)
+	{
+		Vector2 *v  = m_vertexBuffers[m_activeVertexBuffer];
 		m_activeVertexBuffer ^= 1;
 		Vector2 *v2 = m_vertexBuffers[m_activeVertexBuffer];
 		v[m_numVertices] = v[0];
-		float dy2, dy1 = offset - v[0].y;
-		int dy2in, dy1in = clipdirection * dy1 >= 0;
-		uint32_t p = 0;
+		float dy2,   dy1 = offset - v[0].y;
+		int   dy2in, dy1in = clipdirection * dy1 >= 0;
+		uint32_t  p = 0;
 		for (uint32_t k = 0; k < m_numVertices; k++) {
-			dy2 = offset - v[k + 1].y;
+			dy2   = offset - v[k + 1].y;
 			dy2in = clipdirection * dy2 >= 0;
 			if (dy1in) v2[p++] = v[k];
-			if (dy1in + dy2in == 1) { // not both in/out
+			if ( dy1in + dy2in == 1 ) { // not both in/out
 				float dx = v[k + 1].x - v[k].x;
 				float dy = v[k + 1].y - v[k].y;
 				v2[p++] = Vector2(v[k].x + dy1 * (dx / dy), offset);
@@ -3343,19 +3584,20 @@ public:
 		//for (uint32_t k=0; k<m_numVertices; k++) printf("(%f, %f)\n", v2[k].x, v2[k].y); printf("\n");
 	}
 
-	void clipVerticalPlane(float offset, float clipdirection) {
-		Vector2 *v = m_vertexBuffers[m_activeVertexBuffer];
+	void clipVerticalPlane(float offset, float clipdirection )
+	{
+		Vector2 *v  = m_vertexBuffers[m_activeVertexBuffer];
 		m_activeVertexBuffer ^= 1;
 		Vector2 *v2 = m_vertexBuffers[m_activeVertexBuffer];
 		v[m_numVertices] = v[0];
-		float dx2, dx1 = offset - v[0].x;
-		int dx2in, dx1in = clipdirection * dx1 >= 0;
-		uint32_t p = 0;
+		float dx2,   dx1   = offset - v[0].x;
+		int   dx2in, dx1in = clipdirection * dx1 >= 0;
+		uint32_t  p = 0;
 		for (uint32_t k = 0; k < m_numVertices; k++) {
 			dx2 = offset - v[k + 1].x;
 			dx2in = clipdirection * dx2 >= 0;
 			if (dx1in) v2[p++] = v[k];
-			if (dx1in + dx2in == 1) { // not both in/out
+			if ( dx1in + dx2in == 1 ) { // not both in/out
 				float dx = v[k + 1].x - v[k].x;
 				float dy = v[k + 1].y - v[k].y;
 				v2[p++] = Vector2(offset, v[k].y + dx1 * (dy / dx));
@@ -3366,8 +3608,9 @@ public:
 		m_numVertices = p;
 	}
 
-	void computeAreaCentroid() {
-		Vector2 *v = m_vertexBuffers[m_activeVertexBuffer];
+	void computeAreaCentroid()
+	{
+		Vector2 *v  = m_vertexBuffers[m_activeVertexBuffer];
 		v[m_numVertices] = v[0];
 		m_area = 0;
 		float centroidx = 0, centroidy = 0;
@@ -3386,19 +3629,22 @@ public:
 		}
 	}
 
-	void clipAABox(float x0, float y0, float x1, float y1) {
-		clipVerticalPlane(x0, -1);
-		clipHorizontalPlane(y0, -1);
-		clipVerticalPlane(x1, 1);
-		clipHorizontalPlane(y1, 1);
+	void clipAABox(float x0, float y0, float x1, float y1)
+	{
+		clipVerticalPlane  ( x0, -1);
+		clipHorizontalPlane( y0, -1);
+		clipVerticalPlane  ( x1,  1);
+		clipHorizontalPlane( y1,  1);
 		computeAreaCentroid();
 	}
 
-	Vector2 centroid() {
+	Vector2 centroid()
+	{
 		return m_centroid;
 	}
 
-	float area() {
+	float area()
+	{
 		return m_area;
 	}
 
@@ -3406,18 +3652,20 @@ private:
 	Vector2 m_verticesA[7 + 1];
 	Vector2 m_verticesB[7 + 1];
 	Vector2 *m_vertexBuffers[2];
-	uint32_t m_numVertices;
-	uint32_t m_activeVertexBuffer;
-	float m_area;
+	uint32_t    m_numVertices;
+	uint32_t    m_activeVertexBuffer;
+	float   m_area;
 	Vector2 m_centroid;
 };
 
 /// A callback to sample the environment. Return false to terminate rasterization.
-typedef bool (*SamplingCallback)(void *param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
+typedef bool (* SamplingCallback)(void *param, int x, int y, Vector3::Arg bar, Vector3::Arg dx, Vector3::Arg dy, float coverage);
 
 /// A triangle for rasterization.
-struct Triangle {
-	Triangle(Vector2::Arg v0, Vector2::Arg v1, Vector2::Arg v2, Vector3::Arg t0, Vector3::Arg t1, Vector3::Arg t2) {
+struct Triangle
+{
+	Triangle(Vector2::Arg v0, Vector2::Arg v1, Vector2::Arg v2, Vector3::Arg t0, Vector3::Arg t1, Vector3::Arg t2)
+	{
 		// Init vertices.
 		this->v1 = v0;
 		this->v2 = v2;
@@ -3437,7 +3685,8 @@ struct Triangle {
 	/// This method takes two edge vectors that form a basis, determines the
 	/// coordinates of the canonic vectors in that basis, and computes the
 	/// texture gradient that corresponds to those vectors.
-	bool computeDeltas() {
+	bool computeDeltas()
+	{
 		Vector2 e0 = v3 - v1;
 		Vector2 e1 = v2 - v1;
 		Vector3 de0 = t3 - t1;
@@ -3446,16 +3695,17 @@ struct Triangle {
 		if (!std::isfinite(denom)) {
 			return false;
 		}
-		float lambda1 = -e1.y * denom;
+		float lambda1 = - e1.y * denom;
 		float lambda2 = e0.y * denom;
 		float lambda3 = e1.x * denom;
-		float lambda4 = -e0.x * denom;
+		float lambda4 = - e0.x * denom;
 		dx = de0 * lambda1 + de1 * lambda2;
 		dy = de0 * lambda3 + de1 * lambda4;
 		return true;
 	}
 
-	bool draw(const Vector2 &extents, bool enableScissors, SamplingCallback cb, void *param) {
+	bool draw(const Vector2 &extents, bool enableScissors, SamplingCallback cb, void *param)
+	{
 		// 28.4 fixed-point coordinates
 		const int Y1 = ftoi_round(16.0f * v1.y);
 		const int Y2 = ftoi_round(16.0f * v2.y);
@@ -3479,10 +3729,10 @@ struct Triangle {
 		const int FDY31 = DY31 << 4;
 		int minx, miny, maxx, maxy;
 		if (enableScissors) {
-			int frustumX0 = 0 << 4;
-			int frustumY0 = 0 << 4;
-			int frustumX1 = (int)extents.x << 4;
-			int frustumY1 = (int)extents.y << 4;
+			int frustumX0 =  0 << 4;
+			int frustumY0 =  0 << 4;
+			int frustumX1 =  (int)extents.x << 4;
+			int frustumY1 =  (int)extents.y << 4;
 			// Bounding rectangle
 			minx = (std::max(min3(X1, X2, X3), frustumX0) + 0xF) >> 4;
 			miny = (std::max(min3(Y1, Y2, Y3), frustumY0) + 0xF) >> 4;
@@ -3586,26 +3836,27 @@ struct Triangle {
 	}
 
 	// extents has to be multiple of BK_SIZE!!
-	bool drawAA(const Vector2 &extents, bool enableScissors, SamplingCallback cb, void *param) {
-		const float PX_INSIDE = 1.0f / sqrt(2.0f);
-		const float PX_OUTSIDE = -1.0f / sqrt(2.0f);
+	bool drawAA(const Vector2 &extents, bool enableScissors, SamplingCallback cb, void *param)
+	{
+		const float PX_INSIDE = 1.0f/sqrt(2.0f);
+		const float PX_OUTSIDE = -1.0f/sqrt(2.0f);
 		const float BK_SIZE = 8;
-		const float BK_INSIDE = sqrt(BK_SIZE * BK_SIZE / 2.0f);
-		const float BK_OUTSIDE = -sqrt(BK_SIZE * BK_SIZE / 2.0f);
+		const float BK_INSIDE = sqrt(BK_SIZE*BK_SIZE/2.0f);
+		const float BK_OUTSIDE = -sqrt(BK_SIZE*BK_SIZE/2.0f);
 
 		float minx, miny, maxx, maxy;
 		if (enableScissors) {
 			// Bounding rectangle
 			minx = floorf(std::max(min3(v1.x, v2.x, v3.x), 0.0f));
 			miny = floorf(std::max(min3(v1.y, v2.y, v3.y), 0.0f));
-			maxx = ceilf(std::min(max3(v1.x, v2.x, v3.x), extents.x - 1.0f));
-			maxy = ceilf(std::min(max3(v1.y, v2.y, v3.y), extents.y - 1.0f));
+			maxx = ceilf( std::min(max3(v1.x, v2.x, v3.x), extents.x - 1.0f));
+			maxy = ceilf( std::min(max3(v1.y, v2.y, v3.y), extents.y - 1.0f));
 		} else {
 			// Bounding rectangle
 			minx = floorf(min3(v1.x, v2.x, v3.x));
 			miny = floorf(min3(v1.y, v2.y, v3.y));
-			maxx = ceilf(max3(v1.x, v2.x, v3.x));
-			maxy = ceilf(max3(v1.y, v2.y, v3.y));
+			maxx = ceilf( max3(v1.x, v2.x, v3.x));
+			maxy = ceilf( max3(v1.y, v2.y, v3.y));
 		}
 		// There's no reason to align the blocks to the viewport, instead we align them to the origin of the triangle bounds.
 		minx = floorf(minx);
@@ -3631,9 +3882,9 @@ struct Triangle {
 				float bC = C2 + n2.x * xc + n2.y * yc;
 				float cC = C3 + n3.x * xc + n3.y * yc;
 				// Skip block when outside an edge
-				if ((aC <= BK_OUTSIDE) || (bC <= BK_OUTSIDE) || (cC <= BK_OUTSIDE)) continue;
+				if ( (aC <= BK_OUTSIDE) || (bC <= BK_OUTSIDE) || (cC <= BK_OUTSIDE) ) continue;
 				// Accept whole block when totally covered
-				if ((aC >= BK_INSIDE) && (bC >= BK_INSIDE) && (cC >= BK_INSIDE)) {
+				if ( (aC >= BK_INSIDE) && (bC >= BK_INSIDE) && (cC >= BK_INSIDE) ) {
 					Vector3 texRow = t1 + dy * (y0 - v1.y) + dx * (x0 - v1.x);
 					for (float y = y0; y < y0 + BK_SIZE; y++) {
 						Vector3 tex = texRow;
@@ -3695,9 +3946,10 @@ struct Triangle {
 		return true;
 	}
 
-	void flipBackface() {
+	void flipBackface()
+	{
 		// check if triangle is backfacing, if so, swap two vertices
-		if (((v3.x - v1.x) * (v2.y - v1.y) - (v3.y - v1.y) * (v2.x - v1.x)) < 0) {
+		if ( ((v3.x - v1.x) * (v2.y - v1.y) - (v3.y - v1.y) * (v2.x - v1.x)) < 0 ) {
 			Vector2 hv = v1;
 			v1 = v2;
 			v2 = hv; // swap pos
@@ -3708,7 +3960,8 @@ struct Triangle {
 	}
 
 	// compute unit inward normals for each edge.
-	void computeUnitInwardNormals() {
+	void computeUnitInwardNormals()
+	{
 		n1 = v1 - v2;
 		n1 = Vector2(-n1.y, n1.x);
 		n1 = n1 * (1.0f / sqrtf(n1.x * n1.x + n1.y * n1.y));
@@ -3732,13 +3985,15 @@ struct Triangle {
 	bool valid;
 };
 
-enum Mode {
+enum Mode
+{
 	Mode_Nearest,
 	Mode_Antialiased
 };
 
 // Process the given triangle. Returns false if rasterization was interrupted by the callback.
-static bool drawTriangle(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[3], SamplingCallback cb, void *param) {
+static bool drawTriangle(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[3], SamplingCallback cb, void *param)
+{
 	Triangle tri(v[0], v[1], v[2], Vector3(1, 0, 0), Vector3(0, 1, 0), Vector3(0, 0, 1));
 	// @@ It would be nice to have a conservative drawing mode that enlarges the triangle extents by one texel and is able to handle degenerate triangles.
 	// @@ Maybe the simplest thing to do would be raster triangle edges.
@@ -3754,7 +4009,8 @@ static bool drawTriangle(Mode mode, Vector2::Arg extents, bool enableScissors, c
 }
 
 // Process the given quad. Returns false if rasterization was interrupted by the callback.
-static bool drawQuad(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[4], SamplingCallback cb, void *param) {
+static bool drawQuad(Mode mode, Vector2::Arg extents, bool enableScissors, const Vector2 v[4], SamplingCallback cb, void *param)
+{
 	bool sign0 = triangleArea2(v[0], v[1], v[2]) > 0.0f;
 	bool sign1 = triangleArea2(v[0], v[2], v[3]) > 0.0f;
 	// Divide the quad into two non overlapping triangles.
@@ -3786,7 +4042,8 @@ static bool drawQuad(Mode mode, Vector2::Arg extents, bool enableScissors, const
 // Full and sparse vector and matrix classes. BLAS subset.
 // Pseudo-BLAS interface.
 namespace sparse {
-enum Transpose {
+enum Transpose
+{
 	NoTransposed = 0,
 	Transposed = 1
 };
@@ -3799,22 +4056,22 @@ enum Transpose {
 * elements for each row of the matrix. As with the FullVector the
 * dimension of the matrix is constant.
 **/
-class Matrix {
+class Matrix
+{
 public:
 	// An element of the sparse array.
-	struct Coefficient {
-		uint32_t x; // column
+	struct Coefficient
+	{
+		uint32_t x;  // column
 		float v; // value
 	};
 
-	Matrix(uint32_t d) :
-			m_width(d) { m_array.resize(d); }
-	Matrix(uint32_t w, uint32_t h) :
-			m_width(w) { m_array.resize(h); }
-	Matrix(const Matrix &m) :
-			m_width(m.m_width) { m_array = m.m_array; }
+	Matrix(uint32_t d) : m_width(d) { m_array.resize(d); }
+	Matrix(uint32_t w, uint32_t h) : m_width(w) { m_array.resize(h); }
+	Matrix(const Matrix &m) : m_width(m.m_width) { m_array = m.m_array; }
 
-	const Matrix &operator=(const Matrix &m) {
+	const Matrix &operator=(const Matrix &m)
+	{
 		xaAssert(width() == m.width());
 		xaAssert(height() == m.height());
 		m_array = m.m_array;
@@ -3826,9 +4083,10 @@ public:
 	bool isSquare() const { return width() == height(); }
 
 	// x is column, y is row
-	float getCoefficient(uint32_t x, uint32_t y) const {
-		xaDebugAssert(x < width());
-		xaDebugAssert(y < height());
+	float getCoefficient(uint32_t x, uint32_t y) const
+	{
+		xaDebugAssert( x < width() );
+		xaDebugAssert( y < height() );
 		const uint32_t count = m_array[y].size();
 		for (uint32_t i = 0; i < count; i++) {
 			if (m_array[y][i].x == x) return m_array[y][i].v;
@@ -3836,9 +4094,10 @@ public:
 		return 0.0f;
 	}
 
-	void setCoefficient(uint32_t x, uint32_t y, float f) {
-		xaDebugAssert(x < width());
-		xaDebugAssert(y < height());
+	void setCoefficient(uint32_t x, uint32_t y, float f)
+	{
+		xaDebugAssert( x < width() );
+		xaDebugAssert( y < height() );
 		const uint32_t count = m_array[y].size();
 		for (uint32_t i = 0; i < count; i++) {
 			if (m_array[y][i].x == x) {
@@ -3848,12 +4107,13 @@ public:
 		}
 		if (f != 0.0f) {
 			Coefficient c = { x, f };
-			m_array[y].push_back(c);
+			m_array[y].push_back( c );
 		}
 	}
 
-	float dotRow(uint32_t y, const FullVector &v) const {
-		xaDebugAssert(y < height());
+	float dotRow(uint32_t y, const FullVector &v) const
+	{
+		xaDebugAssert( y < height() );
 		const uint32_t count = m_array[y].size();
 		float sum = 0;
 		for (uint32_t i = 0; i < count; i++) {
@@ -3862,7 +4122,8 @@ public:
 		return sum;
 	}
 
-	void madRow(uint32_t y, float alpha, FullVector &v) const {
+	void madRow(uint32_t y, float alpha, FullVector &v) const
+	{
 		xaDebugAssert(y < height());
 		const uint32_t count = m_array[y].size();
 		for (uint32_t i = 0; i < count; i++) {
@@ -3870,13 +4131,15 @@ public:
 		}
 	}
 
-	void clearRow(uint32_t y) {
-		xaDebugAssert(y < height());
+	void clearRow(uint32_t y)
+	{
+		xaDebugAssert( y < height() );
 		m_array[y].clear();
 	}
 
-	void scaleRow(uint32_t y, float f) {
-		xaDebugAssert(y < height());
+	void scaleRow(uint32_t y, float f)
+	{
+		xaDebugAssert( y < height() );
 		const uint32_t count = m_array[y].size();
 		for (uint32_t i = 0; i < count; i++) {
 			m_array[y][i].v *= f;
@@ -3890,11 +4153,12 @@ private:
 	const uint32_t m_width;
 
 	/// Array of matrix elements.
-	std::vector<std::vector<Coefficient> > m_array;
+	std::vector< std::vector<Coefficient> > m_array;
 };
 
 // y = a * x + y
-static void saxpy(float a, const FullVector &x, FullVector &y) {
+static void saxpy(float a, const FullVector &x, FullVector &y)
+{
 	xaDebugAssert(x.dimension() == y.dimension());
 	const uint32_t dim = x.dimension();
 	for (uint32_t i = 0; i < dim; i++) {
@@ -3902,7 +4166,8 @@ static void saxpy(float a, const FullVector &x, FullVector &y) {
 	}
 }
 
-static void copy(const FullVector &x, FullVector &y) {
+static void copy(const FullVector &x, FullVector &y)
+{
 	xaDebugAssert(x.dimension() == y.dimension());
 	const uint32_t dim = x.dimension();
 	for (uint32_t i = 0; i < dim; i++) {
@@ -3910,14 +4175,16 @@ static void copy(const FullVector &x, FullVector &y) {
 	}
 }
 
-static void scal(float a, FullVector &x) {
+static void scal(float a, FullVector &x)
+{
 	const uint32_t dim = x.dimension();
 	for (uint32_t i = 0; i < dim; i++) {
 		x[i] *= a;
 	}
 }
 
-static float dot(const FullVector &x, const FullVector &y) {
+static float dot(const FullVector &x, const FullVector &y)
+{
 	xaDebugAssert(x.dimension() == y.dimension());
 	const uint32_t dim = x.dimension();
 	float sum = 0;
@@ -3927,19 +4194,20 @@ static float dot(const FullVector &x, const FullVector &y) {
 	return sum;
 }
 
-static void mult(Transpose TM, const Matrix &M, const FullVector &x, FullVector &y) {
+static void mult(Transpose TM, const Matrix &M, const FullVector &x, FullVector &y)
+{
 	const uint32_t w = M.width();
 	const uint32_t h = M.height();
 	if (TM == Transposed) {
-		xaDebugAssert(h == x.dimension());
-		xaDebugAssert(w == y.dimension());
+		xaDebugAssert( h == x.dimension() );
+		xaDebugAssert( w == y.dimension() );
 		y.fill(0.0f);
 		for (uint32_t i = 0; i < h; i++) {
 			M.madRow(i, x[i], y);
 		}
 	} else {
-		xaDebugAssert(w == x.dimension());
-		xaDebugAssert(h == y.dimension());
+		xaDebugAssert( w == x.dimension() );
+		xaDebugAssert( h == y.dimension() );
 		for (uint32_t i = 0; i < h; i++) {
 			y[i] = M.dotRow(i, x);
 		}
@@ -3947,22 +4215,24 @@ static void mult(Transpose TM, const Matrix &M, const FullVector &x, FullVector
 }
 
 // y = M * x
-static void mult(const Matrix &M, const FullVector &x, FullVector &y) {
+static void mult(const Matrix &M, const FullVector &x, FullVector &y)
+{
 	mult(NoTransposed, M, x, y);
 }
 
-static void sgemv(float alpha, Transpose TA, const Matrix &A, const FullVector &x, float beta, FullVector &y) {
+static void sgemv(float alpha, Transpose TA, const Matrix &A, const FullVector &x, float beta, FullVector &y)
+{
 	const uint32_t w = A.width();
 	const uint32_t h = A.height();
 	if (TA == Transposed) {
-		xaDebugAssert(h == x.dimension());
-		xaDebugAssert(w == y.dimension());
+		xaDebugAssert( h == x.dimension() );
+		xaDebugAssert( w == y.dimension() );
 		for (uint32_t i = 0; i < h; i++) {
 			A.madRow(i, alpha * x[i], y);
 		}
 	} else {
-		xaDebugAssert(w == x.dimension());
-		xaDebugAssert(h == y.dimension());
+		xaDebugAssert( w == x.dimension() );
+		xaDebugAssert( h == y.dimension() );
 		for (uint32_t i = 0; i < h; i++) {
 			y[i] = alpha * A.dotRow(i, x) + beta * y[i];
 		}
@@ -3970,12 +4240,14 @@ static void sgemv(float alpha, Transpose TA, const Matrix &A, const FullVector &
 }
 
 // y = alpha*A*x + beta*y
-static void sgemv(float alpha, const Matrix &A, const FullVector &x, float beta, FullVector &y) {
+static void sgemv(float alpha, const Matrix &A, const FullVector &x, float beta, FullVector &y)
+{
 	sgemv(alpha, NoTransposed, A, x, beta, y);
 }
 
 // dot y-row of A by x-column of B
-static float dotRowColumn(int y, const Matrix &A, int x, const Matrix &B) {
+static float dotRowColumn(int y, const Matrix &A, int x, const Matrix &B)
+{
 	const std::vector<Matrix::Coefficient> &row = A.getRow(y);
 	const uint32_t count = row.size();
 	float sum = 0.0f;
@@ -3987,7 +4259,8 @@ static float dotRowColumn(int y, const Matrix &A, int x, const Matrix &B) {
 }
 
 // dot y-row of A by x-row of B
-static float dotRowRow(int y, const Matrix &A, int x, const Matrix &B) {
+static float dotRowRow(int y, const Matrix &A, int x, const Matrix &B)
+{
 	const std::vector<Matrix::Coefficient> &row = A.getRow(y);
 	const uint32_t count = row.size();
 	float sum = 0.0f;
@@ -3999,7 +4272,8 @@ static float dotRowRow(int y, const Matrix &A, int x, const Matrix &B) {
 }
 
 // dot y-column of A by x-column of B
-static float dotColumnColumn(int y, const Matrix &A, int x, const Matrix &B) {
+static float dotColumnColumn(int y, const Matrix &A, int x, const Matrix &B)
+{
 	xaDebugAssert(A.height() == B.height());
 	const uint32_t h = A.height();
 	float sum = 0.0f;
@@ -4009,7 +4283,8 @@ static float dotColumnColumn(int y, const Matrix &A, int x, const Matrix &B) {
 	return sum;
 }
 
-static void transpose(const Matrix &A, Matrix &B) {
+static void transpose(const Matrix &A, Matrix &B)
+{
 	xaDebugAssert(A.width() == B.height());
 	xaDebugAssert(B.width() == A.height());
 	const uint32_t w = A.width();
@@ -4028,7 +4303,8 @@ static void transpose(const Matrix &A, Matrix &B) {
 	}
 }
 
-static void sgemm(float alpha, Transpose TA, const Matrix &A, Transpose TB, const Matrix &B, float beta, Matrix &C) {
+static void sgemm(float alpha, Transpose TA, const Matrix &A, Transpose TB, const Matrix &B, float beta, Matrix &C)
+{
 	const uint32_t w = C.width();
 	const uint32_t h = C.height();
 	uint32_t aw = (TA == NoTransposed) ? A.width() : A.height();
@@ -4063,21 +4339,24 @@ static void sgemm(float alpha, Transpose TA, const Matrix &A, Transpose TB, cons
 	}
 }
 
-static void mult(Transpose TA, const Matrix &A, Transpose TB, const Matrix &B, Matrix &C) {
+static void mult(Transpose TA, const Matrix &A, Transpose TB, const Matrix &B, Matrix &C)
+{
 	sgemm(1.0f, TA, A, TB, B, 0.0f, C);
 }
 
 // C = A * B
-static void mult(const Matrix &A, const Matrix &B, Matrix &C) {
+static void mult(const Matrix &A, const Matrix &B, Matrix &C)
+{
 	mult(NoTransposed, A, NoTransposed, B, C);
 }
 
 } // namespace sparse
 
-class JacobiPreconditioner {
+class JacobiPreconditioner
+{
 public:
-	JacobiPreconditioner(const sparse::Matrix &M, bool symmetric) :
-			m_inverseDiagonal(M.width()) {
+	JacobiPreconditioner(const sparse::Matrix &M, bool symmetric) : m_inverseDiagonal(M.width())
+	{
 		xaAssert(M.isSquare());
 		for (uint32_t x = 0; x < M.width(); x++) {
 			float elem = M.getCoefficient(x, x);
@@ -4090,7 +4369,8 @@ public:
 		}
 	}
 
-	void apply(const FullVector &x, FullVector &y) const {
+	void apply(const FullVector &x, FullVector &y) const
+	{
 		xaDebugAssert(x.dimension() == m_inverseDiagonal.dimension());
 		xaDebugAssert(y.dimension() == m_inverseDiagonal.dimension());
 		// @@ Wrap vector component-wise product into a separate function.
@@ -4105,10 +4385,12 @@ private:
 };
 
 // Linear solvers.
-class Solver {
+class Solver
+{
 public:
 	// Solve the symmetric system: At·A·x = At·b
-	static bool LeastSquaresSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon = 1e-5f) {
+	static bool LeastSquaresSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon = 1e-5f)
+	{
 		xaDebugAssert(A.width() == x.dimension());
 		xaDebugAssert(A.height() == b.dimension());
 		xaDebugAssert(A.height() >= A.width()); // @@ If height == width we could solve it directly...
@@ -4123,7 +4405,8 @@ public:
 	}
 
 	// See section 10.4.3 in: Mesh Parameterization: Theory and Practice, Siggraph Course Notes, August 2007
-	static bool LeastSquaresSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, const uint32_t *lockedParameters, uint32_t lockedCount, float epsilon = 1e-5f) {
+	static bool LeastSquaresSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, const uint32_t *lockedParameters, uint32_t lockedCount, float epsilon = 1e-5f)
+	{
 		xaDebugAssert(A.width() == x.dimension());
 		xaDebugAssert(A.height() == b.dimension());
 		xaDebugAssert(A.height() >= A.width() - lockedCount);
@@ -4221,16 +4504,17 @@ private:
 	* Jonhathan Richard Shewchuk.
 	*
 	**/
-	static bool ConjugateGradientSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon) {
-		xaDebugAssert(A.isSquare());
-		xaDebugAssert(A.width() == b.dimension());
-		xaDebugAssert(A.width() == x.dimension());
+	static bool ConjugateGradientSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon)
+	{
+		xaDebugAssert( A.isSquare() );
+		xaDebugAssert( A.width() == b.dimension() );
+		xaDebugAssert( A.width() == x.dimension() );
 		int i = 0;
 		const int D = A.width();
-		const int i_max = 4 * D; // Convergence should be linear, but in some cases, it's not.
-		FullVector r(D); // residual
-		FullVector p(D); // search direction
-		FullVector q(D); //
+		const int i_max = 4 * D;   // Convergence should be linear, but in some cases, it's not.
+		FullVector r(D);   // residual
+		FullVector p(D);   // search direction
+		FullVector q(D);   //
 		float delta_0;
 		float delta_old;
 		float delta_new;
@@ -4241,14 +4525,14 @@ private:
 		sparse::sgemv(-1, A, x, 1, r);
 		// p = r;
 		sparse::copy(r, p);
-		delta_new = sparse::dot(r, r);
+		delta_new = sparse::dot( r, r );
 		delta_0 = delta_new;
 		while (i < i_max && delta_new > epsilon * epsilon * delta_0) {
 			i++;
 			// q = A·p
 			mult(A, p, q);
 			// alpha = delta_new / p·q
-			alpha = delta_new / sparse::dot(p, q);
+			alpha = delta_new / sparse::dot( p, q );
 			// x = alfa·p + x
 			sparse::saxpy(alpha, p, x);
 			if ((i & 31) == 0) { // recompute r after 32 steps
@@ -4260,7 +4544,7 @@ private:
 				sparse::saxpy(-alpha, q, r);
 			}
 			delta_old = delta_new;
-			delta_new = sparse::dot(r, r);
+			delta_new = sparse::dot( r, r );
 			beta = delta_new / delta_old;
 			// p = beta·p + r
 			sparse::scal(beta, p);
@@ -4269,18 +4553,20 @@ private:
 		return delta_new <= epsilon * epsilon * delta_0;
 	}
 
+
 	// Conjugate gradient with preconditioner.
-	static bool ConjugateGradientSolver(const JacobiPreconditioner &preconditioner, const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon) {
-		xaDebugAssert(A.isSquare());
-		xaDebugAssert(A.width() == b.dimension());
-		xaDebugAssert(A.width() == x.dimension());
+	static bool ConjugateGradientSolver(const JacobiPreconditioner &preconditioner, const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon)
+	{
+		xaDebugAssert( A.isSquare() );
+		xaDebugAssert( A.width() == b.dimension() );
+		xaDebugAssert( A.width() == x.dimension() );
 		int i = 0;
 		const int D = A.width();
-		const int i_max = 4 * D; // Convergence should be linear, but in some cases, it's not.
-		FullVector r(D); // residual
-		FullVector p(D); // search direction
-		FullVector q(D); //
-		FullVector s(D); // preconditioned
+		const int i_max = 4 * D;   // Convergence should be linear, but in some cases, it's not.
+		FullVector r(D);    // residual
+		FullVector p(D);    // search direction
+		FullVector q(D);    //
+		FullVector s(D);    // preconditioned
 		float delta_0;
 		float delta_old;
 		float delta_new;
@@ -4312,7 +4598,7 @@ private:
 			// s = M^-1 · r
 			preconditioner.apply(r, s);
 			delta_old = delta_new;
-			delta_new = sparse::dot(r, s);
+			delta_new = sparse::dot( r, s );
 			beta = delta_new / delta_old;
 			// p = s + beta·p
 			sparse::scal(beta, p);
@@ -4321,7 +4607,8 @@ private:
 		return delta_new <= epsilon * epsilon * delta_0;
 	}
 
-	static bool SymmetricSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon = 1e-5f) {
+	static bool SymmetricSolver(const sparse::Matrix &A, const FullVector &b, FullVector &x, float epsilon = 1e-5f)
+	{
 		xaDebugAssert(A.height() == A.width());
 		xaDebugAssert(A.height() == b.dimension());
 		xaDebugAssert(b.dimension() == x.dimension());
@@ -4335,7 +4622,8 @@ class Atlas;
 class Chart;
 
 // Fast sweep in 3 directions
-static bool findApproximateDiameterVertices(halfedge::Mesh *mesh, halfedge::Vertex **a, halfedge::Vertex **b) {
+static bool findApproximateDiameterVertices(halfedge::Mesh *mesh, halfedge::Vertex **a, halfedge::Vertex **b)
+{
 	xaDebugAssert(mesh != NULL);
 	xaDebugAssert(a != NULL);
 	xaDebugAssert(b != NULL);
@@ -4364,18 +4652,12 @@ static bool findApproximateDiameterVertices(halfedge::Mesh *mesh, halfedge::Vert
 			// Skip interior vertices.
 			continue;
 		}
-		if (vertex->pos.x < minVertex[0]->pos.x)
-			minVertex[0] = vertex;
-		else if (vertex->pos.x > maxVertex[0]->pos.x)
-			maxVertex[0] = vertex;
-		if (vertex->pos.y < minVertex[1]->pos.y)
-			minVertex[1] = vertex;
-		else if (vertex->pos.y > maxVertex[1]->pos.y)
-			maxVertex[1] = vertex;
-		if (vertex->pos.z < minVertex[2]->pos.z)
-			minVertex[2] = vertex;
-		else if (vertex->pos.z > maxVertex[2]->pos.z)
-			maxVertex[2] = vertex;
+		if (vertex->pos.x < minVertex[0]->pos.x) minVertex[0] = vertex;
+		else if (vertex->pos.x > maxVertex[0]->pos.x) maxVertex[0] = vertex;
+		if (vertex->pos.y < minVertex[1]->pos.y) minVertex[1] = vertex;
+		else if (vertex->pos.y > maxVertex[1]->pos.y) maxVertex[1] = vertex;
+		if (vertex->pos.z < minVertex[2]->pos.z) minVertex[2] = vertex;
+		else if (vertex->pos.z > maxVertex[2]->pos.z) maxVertex[2] = vertex;
 	}
 	float lengths[3];
 	for (int i = 0; i < 3; i++) {
@@ -4396,24 +4678,28 @@ static bool findApproximateDiameterVertices(halfedge::Mesh *mesh, halfedge::Vert
 
 // Conformal relations from Brecht Van Lommel (based on ABF):
 
-static float vec_angle_cos(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3) {
+static float vec_angle_cos(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3)
+{
 	Vector3 d1 = v1 - v2;
 	Vector3 d2 = v3 - v2;
 	return clamp(dot(d1, d2) / (length(d1) * length(d2)), -1.0f, 1.0f);
 }
 
-static float vec_angle(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3) {
+static float vec_angle(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3)
+{
 	float dot = vec_angle_cos(v1, v2, v3);
 	return acosf(dot);
 }
 
-static void triangle_angles(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3, float *a1, float *a2, float *a3) {
+static void triangle_angles(Vector3::Arg v1, Vector3::Arg v2, Vector3::Arg v3, float *a1, float *a2, float *a3)
+{
 	*a1 = vec_angle(v3, v1, v2);
 	*a2 = vec_angle(v1, v2, v3);
 	*a3 = PI - *a2 - *a1;
 }
 
-static void setup_abf_relations(sparse::Matrix &A, int row, const halfedge::Vertex *v0, const halfedge::Vertex *v1, const halfedge::Vertex *v2) {
+static void setup_abf_relations(sparse::Matrix &A, int row, const halfedge::Vertex *v0, const halfedge::Vertex *v1, const halfedge::Vertex *v2)
+{
 	int id0 = v0->id;
 	int id1 = v1->id;
 	int id2 = v2->id;
@@ -4469,7 +4755,8 @@ static void setup_abf_relations(sparse::Matrix &A, int row, const halfedge::Vert
 	A.setCoefficient(v2_id, 2 * row + 1, 1);
 }
 
-bool computeLeastSquaresConformalMap(halfedge::Mesh *mesh) {
+bool computeLeastSquaresConformalMap(halfedge::Mesh *mesh)
+{
 	xaDebugAssert(mesh != NULL);
 	// For this to work properly, mesh should not have colocals that have the same
 	// attributes, unless you want the vertices to actually have different texcoords.
@@ -4542,7 +4829,8 @@ bool computeLeastSquaresConformalMap(halfedge::Mesh *mesh) {
 	return true;
 }
 
-bool computeOrthogonalProjectionMap(halfedge::Mesh *mesh) {
+bool computeOrthogonalProjectionMap(halfedge::Mesh *mesh)
+{
 	Vector3 axis[2];
 	uint32_t vertexCount = mesh->vertexCount();
 	std::vector<Vector3> points(vertexCount);
@@ -4572,7 +4860,8 @@ bool computeOrthogonalProjectionMap(halfedge::Mesh *mesh) {
 	return true;
 }
 
-void computeSingleFaceMap(halfedge::Mesh *mesh) {
+void computeSingleFaceMap(halfedge::Mesh *mesh)
+{
 	xaDebugAssert(mesh != NULL);
 	xaDebugAssert(mesh->faceCount() == 1);
 	halfedge::Face *face = mesh->faceAt(0);
@@ -4603,11 +4892,12 @@ void computeSingleFaceMap(halfedge::Mesh *mesh) {
 // - Resorting is n*log(n)
 // @@ Number of elements in the queue is usually small, and we'd have to rebalance often. I'm not sure it's worth implementing a heap.
 // @@ Searcing at removal would remove the need for sorting when priorities change.
-struct PriorityQueue {
-	PriorityQueue(uint32_t size = UINT_MAX) :
-			maxSize(size) {}
+struct PriorityQueue
+{
+	PriorityQueue(uint32_t size = UINT_MAX) : maxSize(size) {}
 
-	void push(float priority, uint32_t face) {
+	void push(float priority, uint32_t face)
+	{
 		uint32_t i = 0;
 		const uint32_t count = pairs.size();
 		for (; i < count; i++) {
@@ -4621,39 +4911,47 @@ struct PriorityQueue {
 	}
 
 	// push face out of order, to be sorted later.
-	void push(uint32_t face) {
+	void push(uint32_t face)
+	{
 		Pair p = { 0.0f, face };
 		pairs.push_back(p);
 	}
 
-	uint32_t pop() {
+	uint32_t pop()
+	{
 		uint32_t f = pairs.back().face;
 		pairs.pop_back();
 		return f;
 	}
 
-	void sort() {
+	void sort()
+	{
 		//sort(pairs); // @@ My intro sort appears to be much slower than it should!
 		std::sort(pairs.begin(), pairs.end());
 	}
 
-	void clear() {
+	void clear()
+	{
 		pairs.clear();
 	}
 
-	uint32_t count() const {
+	uint32_t count() const
+	{
 		return pairs.size();
 	}
 
-	float firstPriority() const {
+	float firstPriority() const
+	{
 		return pairs.back().priority;
 	}
 
 	const uint32_t maxSize;
 
-	struct Pair {
-		bool operator<(const Pair &p) const {
-			return priority > p.priority; // !! Sort in inverse priority order!
+	struct Pair
+	{
+		bool operator <(const Pair &p) const
+		{
+			return priority > p.priority;    // !! Sort in inverse priority order!
 		}
 
 		float priority;
@@ -4663,9 +4961,10 @@ struct PriorityQueue {
 	std::vector<Pair> pairs;
 };
 
-struct ChartBuildData {
-	ChartBuildData(int p_id) :
-			id(p_id) {
+struct ChartBuildData
+{
+	ChartBuildData(int id) : id(id)
+	{
 		planeNormal = Vector3(0);
 		centroid = Vector3(0);
 		coneAxis = Vector3(0);
@@ -4689,15 +4988,15 @@ struct ChartBuildData {
 	Vector3 normalSum;
 	Vector3 centroidSum;
 
-	std::vector<uint32_t> seeds; // @@ These could be a pointers to the halfedge faces directly.
+	std::vector<uint32_t> seeds;  // @@ These could be a pointers to the halfedge faces directly.
 	std::vector<uint32_t> faces;
 	PriorityQueue candidates;
 };
 
-struct AtlasBuilder {
-	AtlasBuilder(const halfedge::Mesh *m) :
-			mesh(m),
-			facesLeft(m->faceCount()) {
+struct AtlasBuilder
+{
+	AtlasBuilder(const halfedge::Mesh *m) : mesh(m), facesLeft(m->faceCount())
+	{
 		const uint32_t faceCount = m->faceCount();
 		faceChartArray.resize(faceCount, -1);
 		faceCandidateArray.resize(faceCount, (uint32_t)-1);
@@ -4720,14 +5019,16 @@ struct AtlasBuilder {
 		}
 	}
 
-	~AtlasBuilder() {
+	~AtlasBuilder()
+	{
 		const uint32_t chartCount = chartArray.size();
 		for (uint32_t i = 0; i < chartCount; i++) {
 			delete chartArray[i];
 		}
 	}
 
-	void markUnchartedFaces(const std::vector<uint32_t> &unchartedFaces) {
+	void markUnchartedFaces(const std::vector<uint32_t> &unchartedFaces)
+	{
 		const uint32_t unchartedFaceCount = unchartedFaces.size();
 		for (uint32_t i = 0; i < unchartedFaceCount; i++) {
 			uint32_t f = unchartedFaces[i];
@@ -4739,7 +5040,8 @@ struct AtlasBuilder {
 		facesLeft -= unchartedFaceCount;
 	}
 
-	void computeShortestPaths() {
+	void computeShortestPaths()
+	{
 		const uint32_t faceCount = mesh->faceCount();
 		shortestPaths.resize(faceCount * faceCount, FLT_MAX);
 		// Fill edges:
@@ -4767,7 +5069,8 @@ struct AtlasBuilder {
 		}
 	}
 
-	void placeSeeds(float threshold, uint32_t maxSeedCount) {
+	void placeSeeds(float threshold, uint32_t maxSeedCount)
+	{
 		// Instead of using a predefiened number of seeds:
 		// - Add seeds one by one, growing chart until a certain treshold.
 		// - Undo charts and restart growing process.
@@ -4783,18 +5086,17 @@ struct AtlasBuilder {
 		}
 	}
 
-	void createRandomChart(float threshold) {
+	void createRandomChart(float threshold)
+	{
 		ChartBuildData *chart = new ChartBuildData(chartArray.size());
 		chartArray.push_back(chart);
 		// Pick random face that is not used by any chart yet.
 		uint32_t randomFaceIdx = rand.getRange(facesLeft - 1);
 		uint32_t i = 0;
 		for (uint32_t f = 0; f != randomFaceIdx; f++, i++) {
-			while (faceChartArray[i] != -1)
-				i++;
+			while (faceChartArray[i] != -1) i++;
 		}
-		while (faceChartArray[i] != -1)
-			i++;
+		while (faceChartArray[i] != -1) i++;
 		chart->seeds.push_back(i);
 		addFaceToChart(chart, i, true);
 		// Grow the chart as much as possible within the given threshold.
@@ -4802,7 +5104,8 @@ struct AtlasBuilder {
 		//growCharts(threshold - threshold * 0.75f / chartCount(), facesLeft);
 	}
 
-	void addFaceToChart(ChartBuildData *chart, uint32_t f, bool recomputeProxy = false) {
+	void addFaceToChart(ChartBuildData *chart, uint32_t f, bool recomputeProxy = false)
+	{
 		// Add face to chart.
 		chart->faces.push_back(f);
 		xaDebugAssert(faceChartArray[f] == -1);
@@ -4824,7 +5127,8 @@ struct AtlasBuilder {
 	}
 
 	// Returns true if any of the charts can grow more.
-	bool growCharts(float threshold, uint32_t faceCount) {
+	bool growCharts(float threshold, uint32_t faceCount)
+	{
 		// Using one global list.
 		faceCount = std::min(faceCount, facesLeft);
 		for (uint32_t i = 0; i < faceCount; i++) {
@@ -4837,9 +5141,10 @@ struct AtlasBuilder {
 		return facesLeft != 0; // Can continue growing.
 	}
 
-	bool growChart(ChartBuildData *chart, float threshold, uint32_t faceCount) {
+	bool growChart(ChartBuildData *chart, float threshold, uint32_t faceCount)
+	{
 		// Try to add faceCount faces within threshold to chart.
-		for (uint32_t i = 0; i < faceCount;) {
+		for (uint32_t i = 0; i < faceCount; ) {
 			if (chart->candidates.count() == 0 || chart->candidates.firstPriority() > threshold) {
 				return false;
 			}
@@ -4855,7 +5160,8 @@ struct AtlasBuilder {
 		return true;
 	}
 
-	void resetCharts() {
+	void resetCharts()
+	{
 		const uint32_t faceCount = mesh->faceCount();
 		for (uint32_t i = 0; i < faceCount; i++) {
 			faceChartArray[i] = -1;
@@ -4877,7 +5183,8 @@ struct AtlasBuilder {
 		}
 	}
 
-	void updateCandidates(ChartBuildData *chart, uint32_t f) {
+	void updateCandidates(ChartBuildData *chart, uint32_t f)
+	{
 		const halfedge::Face *face = mesh->faceAt(f);
 		// Traverse neighboring faces, add the ones that do not belong to any chart yet.
 		for (halfedge::Face::ConstEdgeIterator it(face->edges()); !it.isDone(); it.advance()) {
@@ -4891,20 +5198,23 @@ struct AtlasBuilder {
 		}
 	}
 
-	void updateProxies() {
+	void updateProxies()
+	{
 		const uint32_t chartCount = chartArray.size();
 		for (uint32_t i = 0; i < chartCount; i++) {
 			updateProxy(chartArray[i]);
 		}
 	}
 
-	void updateProxy(ChartBuildData *chart) {
+	void updateProxy(ChartBuildData *chart)
+	{
 		//#pragma message(NV_FILE_LINE "TODO: Use best fit plane instead of average normal.")
 		chart->planeNormal = normalizeSafe(chart->normalSum, Vector3(0), 0.0f);
 		chart->centroid = chart->centroidSum / float(chart->faces.size());
 	}
 
-	bool relocateSeeds() {
+	bool relocateSeeds()
+	{
 		bool anySeedChanged = false;
 		const uint32_t chartCount = chartArray.size();
 		for (uint32_t i = 0; i < chartCount; i++) {
@@ -4915,9 +5225,10 @@ struct AtlasBuilder {
 		return anySeedChanged;
 	}
 
-	bool relocateSeed(ChartBuildData *chart) {
+	bool relocateSeed(ChartBuildData *chart)
+	{
 		Vector3 centroid = computeChartCentroid(chart);
-		const uint32_t N = 10; // @@ Hardcoded to 10?
+		const uint32_t N = 10;  // @@ Hardcoded to 10?
 		PriorityQueue bestTriangles(N);
 		// Find the first N triangles that fit the proxy best.
 		const uint32_t faceCount = chart->faces.size();
@@ -4953,7 +5264,8 @@ struct AtlasBuilder {
 		}
 	}
 
-	void updatePriorities(ChartBuildData *chart) {
+	void updatePriorities(ChartBuildData *chart)
+	{
 		// Re-evaluate candidate priorities.
 		uint32_t candidateCount = chart->candidates.count();
 		for (uint32_t i = 0; i < candidateCount; i++) {
@@ -4967,7 +5279,8 @@ struct AtlasBuilder {
 	}
 
 	// Evaluate combined metric.
-	float evaluatePriority(ChartBuildData *chart, uint32_t face) {
+	float evaluatePriority(ChartBuildData *chart, uint32_t face)
+	{
 		// Estimate boundary length and area:
 		float newBoundaryLength = evaluateBoundaryLength(chart, face);
 		float newChartArea = evaluateChartArea(chart, face);
@@ -4984,11 +5297,11 @@ struct AtlasBuilder {
 		// - Cause more impedance. Never cross 90 degree edges.
 		// -
 		float cost = float(
-				options.proxyFitMetricWeight * F +
-				options.roundnessMetricWeight * C +
-				options.straightnessMetricWeight * P +
-				options.normalSeamMetricWeight * N +
-				options.textureSeamMetricWeight * T);
+						 options.proxyFitMetricWeight * F +
+						 options.roundnessMetricWeight * C +
+						 options.straightnessMetricWeight * P +
+						 options.normalSeamMetricWeight * N +
+						 options.textureSeamMetricWeight * T);
 		// Enforce limits strictly:
 		if (newChartArea > options.maxChartArea) cost = FLT_MAX;
 		if (newBoundaryLength > options.maxBoundaryLength) cost = FLT_MAX;
@@ -4999,14 +5312,16 @@ struct AtlasBuilder {
 	}
 
 	// Returns a value in [0-1].
-	float evaluateProxyFitMetric(ChartBuildData *chart, uint32_t f) {
+	float evaluateProxyFitMetric(ChartBuildData *chart, uint32_t f)
+	{
 		const halfedge::Face *face = mesh->faceAt(f);
 		Vector3 faceNormal = face->triangleNormal();
 		// Use plane fitting metric for now:
 		return 1 - dot(faceNormal, chart->planeNormal); // @@ normal deviations should be weighted by face area
 	}
 
-	float evaluateRoundnessMetric(ChartBuildData *chart, uint32_t /*face*/, float newBoundaryLength, float newChartArea) {
+	float evaluateRoundnessMetric(ChartBuildData *chart, uint32_t /*face*/, float newBoundaryLength, float newChartArea)
+	{
 		float roundness = square(chart->boundaryLength) / chart->area;
 		float newRoundness = square(newBoundaryLength) / newChartArea;
 		if (newRoundness > roundness) {
@@ -5017,7 +5332,8 @@ struct AtlasBuilder {
 		}
 	}
 
-	float evaluateStraightnessMetric(ChartBuildData *chart, uint32_t f) {
+	float evaluateStraightnessMetric(ChartBuildData *chart, uint32_t f)
+	{
 		float l_out = 0.0f;
 		float l_in = 0.0f;
 		const halfedge::Face *face = mesh->faceAt(f);
@@ -5040,7 +5356,8 @@ struct AtlasBuilder {
 		return std::min(ratio, 0.0f); // Only use the straightness metric to close gaps.
 	}
 
-	float evaluateNormalSeamMetric(ChartBuildData *chart, uint32_t f) {
+	float evaluateNormalSeamMetric(ChartBuildData *chart, uint32_t f)
+	{
 		float seamFactor = 0.0f;
 		float totalLength = 0.0f;
 		const halfedge::Face *face = mesh->faceAt(f);
@@ -5071,7 +5388,8 @@ struct AtlasBuilder {
 		return seamFactor / totalLength;
 	}
 
-	float evaluateTextureSeamMetric(ChartBuildData *chart, uint32_t f) {
+	float evaluateTextureSeamMetric(ChartBuildData *chart, uint32_t f)
+	{
 		float seamLength = 0.0f;
 		float totalLength = 0.0f;
 		const halfedge::Face *face = mesh->faceAt(f);
@@ -5101,12 +5419,14 @@ struct AtlasBuilder {
 		return seamLength / totalLength;
 	}
 
-	float evaluateChartArea(ChartBuildData *chart, uint32_t f) {
+	float evaluateChartArea(ChartBuildData *chart, uint32_t f)
+	{
 		const halfedge::Face *face = mesh->faceAt(f);
 		return chart->area + faceAreas[face->id];
 	}
 
-	float evaluateBoundaryLength(ChartBuildData *chart, uint32_t f) {
+	float evaluateBoundaryLength(ChartBuildData *chart, uint32_t f)
+	{
 		float boundaryLength = chart->boundaryLength;
 		// Add new edges, subtract edges shared with the chart.
 		const halfedge::Face *face = mesh->faceAt(f);
@@ -5125,20 +5445,23 @@ struct AtlasBuilder {
 				}
 			}
 		}
-		return std::max(0.0f, boundaryLength); // @@ Hack!
+		return std::max(0.0f, boundaryLength);  // @@ Hack!
 	}
 
-	Vector3 evaluateChartNormalSum(ChartBuildData *chart, uint32_t f) {
+	Vector3 evaluateChartNormalSum(ChartBuildData *chart, uint32_t f)
+	{
 		const halfedge::Face *face = mesh->faceAt(f);
 		return chart->normalSum + face->triangleNormalAreaScaled();
 	}
 
-	Vector3 evaluateChartCentroidSum(ChartBuildData *chart, uint32_t f) {
+	Vector3 evaluateChartCentroidSum(ChartBuildData *chart, uint32_t f)
+	{
 		const halfedge::Face *face = mesh->faceAt(f);
 		return chart->centroidSum + face->centroid();
 	}
 
-	Vector3 computeChartCentroid(const ChartBuildData *chart) {
+	Vector3 computeChartCentroid(const ChartBuildData *chart)
+	{
 		Vector3 centroid(0);
 		const uint32_t faceCount = chart->faces.size();
 		for (uint32_t i = 0; i < faceCount; i++) {
@@ -5148,12 +5471,14 @@ struct AtlasBuilder {
 		return centroid / float(faceCount);
 	}
 
-	void fillHoles(float threshold) {
+	void fillHoles(float threshold)
+	{
 		while (facesLeft > 0)
 			createRandomChart(threshold);
 	}
 
-	void mergeCharts() {
+	void mergeCharts()
+	{
 		std::vector<float> sharedBoundaryLengths;
 		const uint32_t chartCount = chartArray.size();
 		for (int c = chartCount - 1; c >= 0; c--) {
@@ -5219,9 +5544,9 @@ struct AtlasBuilder {
 				// Update faceChartArray.
 				const uint32_t faceCount = faceChartArray.size();
 				for (uint32_t i = 0; i < faceCount; i++) {
-					xaDebugAssert(faceChartArray[i] != -1);
-					xaDebugAssert(faceChartArray[i] != c);
-					xaDebugAssert(faceChartArray[i] <= int32_t(chartArray.size()));
+					xaDebugAssert (faceChartArray[i] != -1);
+					xaDebugAssert (faceChartArray[i] != c);
+					xaDebugAssert (faceChartArray[i] <= int32_t(chartArray.size()));
 					if (faceChartArray[i] > c) {
 						faceChartArray[i]--;
 					}
@@ -5241,7 +5566,8 @@ struct AtlasBuilder {
 	};
 
 	// @@ Get N best candidates in one pass.
-	const Candidate &getBestCandidate() const {
+	const Candidate &getBestCandidate() const
+	{
 		uint32_t best = 0;
 		float bestCandidateMetric = FLT_MAX;
 		const uint32_t candidateCount = candidateArray.size();
@@ -5256,7 +5582,8 @@ struct AtlasBuilder {
 		return candidateArray[best];
 	}
 
-	void removeCandidate(uint32_t f) {
+	void removeCandidate(uint32_t f)
+	{
 		int c = faceCandidateArray[f];
 		if (c != -1) {
 			faceCandidateArray[f] = (uint32_t)-1;
@@ -5271,7 +5598,8 @@ struct AtlasBuilder {
 		}
 	}
 
-	void updateCandidate(ChartBuildData *chart, uint32_t f, float metric) {
+	void updateCandidate(ChartBuildData *chart, uint32_t f, float metric)
+	{
 		if (faceCandidateArray[f] == -1) {
 			const uint32_t index = candidateArray.size();
 			faceCandidateArray[f] = index;
@@ -5291,7 +5619,8 @@ struct AtlasBuilder {
 		}
 	}
 
-	void mergeChart(ChartBuildData *owner, ChartBuildData *chart, float sharedBoundaryLength) {
+	void mergeChart(ChartBuildData *owner, ChartBuildData *chart, float sharedBoundaryLength)
+	{
 		const uint32_t faceCount = chart->faces.size();
 		for (uint32_t i = 0; i < faceCount; i++) {
 			uint32_t f = chart->faces[i];
@@ -5307,6 +5636,7 @@ struct AtlasBuilder {
 		updateProxy(owner);
 	}
 
+
 	uint32_t chartCount() const { return chartArray.size(); }
 	const std::vector<uint32_t> &chartFaces(uint32_t i) const { return chartArray[i]->faces; }
 
@@ -5324,13 +5654,13 @@ struct AtlasBuilder {
 };
 
 /// A chart is a connected set of faces with a certain topology (usually a disk).
-class Chart {
+class Chart
+{
 public:
-	Chart() :
-			m_isDisk(false),
-			m_isVertexMapped(false) {}
+	Chart() : m_isDisk(false), m_isVertexMapped(false) {}
 
-	void build(const halfedge::Mesh *originalMesh, const std::vector<uint32_t> &faceArray) {
+	void build(const halfedge::Mesh *originalMesh, const std::vector<uint32_t> &faceArray)
+	{
 		// Copy face indices.
 		m_faceArray = faceArray;
 		const uint32_t meshVertexCount = originalMesh->vertexCount();
@@ -5353,7 +5683,10 @@ public:
 				}
 				if (chartMeshIndices[vertex->id] == ~0) {
 					chartMeshIndices[vertex->id] = m_chartMesh->vertexCount();
+					// -- GODOT start --
+					//m_chartToOriginalMap.push_back(vertex->id);
 					m_chartToOriginalMap.push_back(vertex->original_id);
+					// -- GODOT end --
 					m_chartToUnifiedMap.push_back(unifiedMeshIndices[unifiedVertex->id]);
 					halfedge::Vertex *v = m_chartMesh->addVertex(vertex->pos);
 					v->nor = vertex->nor;
@@ -5417,7 +5750,8 @@ public:
 		m_isDisk = topology.isDisk();
 	}
 
-	void buildVertexMap(const halfedge::Mesh *originalMesh, const std::vector<uint32_t> &unchartedMaterialArray) {
+	void buildVertexMap(const halfedge::Mesh *originalMesh, const std::vector<uint32_t> &unchartedMaterialArray)
+	{
 		xaAssert(m_chartMesh.get() == NULL && m_unifiedMesh.get() == NULL);
 		m_isVertexMapped = true;
 		// Build face indices.
@@ -5445,7 +5779,10 @@ public:
 				const halfedge::Vertex *vertex = it.current()->vertex;
 				if (chartMeshIndices[vertex->id] == ~0) {
 					chartMeshIndices[vertex->id] = m_chartMesh->vertexCount();
+					// -- GODOT start --
+					//m_chartToOriginalMap.push_back(vertex->id);
 					m_chartToOriginalMap.push_back(vertex->original_id);
+					// -- GODOT end --
 					halfedge::Vertex *v = m_chartMesh->addVertex(vertex->pos);
 					v->nor = vertex->nor;
 					v->tex = vertex->tex; // @@ Not necessary.
@@ -5505,7 +5842,7 @@ public:
 				halfedge::Vertex *vertex = m_chartMesh->vertexAt(idx);
 				xaDebugAssert(vertexIndexArray[idx] == -1);
 				std::vector<uint32_t> neighbors;
-				grid.gather(vertex->pos, positionThreshold, /*ref*/ neighbors);
+				grid.gather(vertex->pos, positionThreshold, /*ref*/neighbors);
 				// Compare against all nearby vertices, cluster greedily.
 				for (uint32_t j = 0; j < neighbors.size(); j++) {
 					uint32_t otherIdx = neighbors[j];
@@ -5528,7 +5865,7 @@ public:
 		xaDebugAssert(cellsVisited == grid.cellArray.size());
 		xaDebugAssert(verticesVisited == chartVertexCount);
 		vertexMapWidth = ftoi_ceil(sqrtf(float(texelCount)));
-		vertexMapWidth = (vertexMapWidth + 3) & ~3; // Width aligned to 4.
+		vertexMapWidth = (vertexMapWidth + 3) & ~3;                             // Width aligned to 4.
 		vertexMapHeight = vertexMapWidth == 0 ? 0 : (texelCount + vertexMapWidth - 1) / vertexMapWidth;
 		//vertexMapHeight = (vertexMapHeight + 3) & ~3;                           // Height aligned to 4.
 		xaDebugAssert(vertexMapWidth >= vertexMapHeight);
@@ -5559,7 +5896,8 @@ public:
 		}
 	}
 
-	bool closeHoles() {
+	bool closeHoles()
+	{
 		xaDebugAssert(!m_isVertexMapped);
 		std::vector<halfedge::Edge *> boundaryEdges;
 		getBoundaryEdges(m_unifiedMesh.get(), boundaryEdges);
@@ -5610,7 +5948,7 @@ public:
 			std::vector<halfedge::Edge *> edgeLoop;
 			halfedge::Edge *edge = startEdge;
 			do {
-				halfedge::Vertex *vertex = edge->next->vertex; // edge->to()
+				halfedge::Vertex *vertex = edge->next->vertex;  // edge->to()
 				uint32_t j;
 				for (j = 0; j < vertexLoop.size(); j++) {
 					if (vertex->isColocal(vertexLoop[j])) {
@@ -5619,8 +5957,8 @@ public:
 				}
 				bool isCrossing = (j != vertexLoop.size());
 				if (isCrossing) {
-					halfedge::Edge *prev = edgeLoop[j]; // Previous edge before the loop.
-					halfedge::Edge *next = edge->next; // Next edge after the loop.
+					halfedge::Edge *prev = edgeLoop[j];     // Previous edge before the loop.
+					halfedge::Edge *next = edge->next;    // Next edge after the loop.
 					xaDebugAssert(prev->to()->isColocal(next->from()));
 					// Close loop.
 					edgeLoop.push_back(edge);
@@ -5646,55 +5984,69 @@ public:
 		return boundaryCount == 1;
 	}
 
-	bool isDisk() const {
+	bool isDisk() const
+	{
 		return m_isDisk;
 	}
-	bool isVertexMapped() const {
+	bool isVertexMapped() const
+	{
 		return m_isVertexMapped;
 	}
 
-	uint32_t vertexCount() const {
+	uint32_t vertexCount() const
+	{
 		return m_chartMesh->vertexCount();
 	}
-	uint32_t colocalVertexCount() const {
+	uint32_t colocalVertexCount() const
+	{
 		return m_unifiedMesh->vertexCount();
 	}
 
-	uint32_t faceCount() const {
+	uint32_t faceCount() const
+	{
 		return m_faceArray.size();
 	}
-	uint32_t faceAt(uint32_t i) const {
+	uint32_t faceAt(uint32_t i) const
+	{
 		return m_faceArray[i];
 	}
 
-	const halfedge::Mesh *chartMesh() const {
+	const halfedge::Mesh *chartMesh() const
+	{
 		return m_chartMesh.get();
 	}
-	halfedge::Mesh *chartMesh() {
+	halfedge::Mesh *chartMesh()
+	{
 		return m_chartMesh.get();
 	}
-	const halfedge::Mesh *unifiedMesh() const {
+	const halfedge::Mesh *unifiedMesh() const
+	{
 		return m_unifiedMesh.get();
 	}
-	halfedge::Mesh *unifiedMesh() {
+	halfedge::Mesh *unifiedMesh()
+	{
 		return m_unifiedMesh.get();
 	}
 
 	//uint32_t vertexIndex(uint32_t i) const { return m_vertexIndexArray[i]; }
 
-	uint32_t mapChartVertexToOriginalVertex(uint32_t i) const {
+	uint32_t mapChartVertexToOriginalVertex(uint32_t i) const
+	{
 		return m_chartToOriginalMap[i];
 	}
-	uint32_t mapChartVertexToUnifiedVertex(uint32_t i) const {
+	uint32_t mapChartVertexToUnifiedVertex(uint32_t i) const
+	{
 		return m_chartToUnifiedMap[i];
 	}
 
-	const std::vector<uint32_t> &faceArray() const {
+	const std::vector<uint32_t> &faceArray() const
+	{
 		return m_faceArray;
 	}
 
 	// Transfer parameterization from unified mesh to chart mesh.
-	void transferParameterization() {
+	void transferParameterization()
+	{
 		xaDebugAssert(!m_isVertexMapped);
 		uint32_t vertexCount = m_chartMesh->vertexCount();
 		for (uint32_t v = 0; v < vertexCount; v++) {
@@ -5704,18 +6056,21 @@ public:
 		}
 	}
 
-	float computeSurfaceArea() const {
+	float computeSurfaceArea() const
+	{
 		return halfedge::computeSurfaceArea(m_chartMesh.get()) * scale;
 	}
 
-	float computeParametricArea() const {
+	float computeParametricArea() const
+	{
 		// This only makes sense in parameterized meshes.
 		xaDebugAssert(m_isDisk);
 		xaDebugAssert(!m_isVertexMapped);
 		return halfedge::computeParametricArea(m_chartMesh.get());
 	}
 
-	Vector2 computeParametricBounds() const {
+	Vector2 computeParametricBounds() const
+	{
 		// This only makes sense in parameterized meshes.
 		xaDebugAssert(m_isDisk);
 		xaDebugAssert(!m_isVertexMapped);
@@ -5735,7 +6090,8 @@ public:
 	bool blockAligned = true;
 
 private:
-	bool closeLoop(uint32_t start, const std::vector<halfedge::Edge *> &loop) {
+	bool closeLoop(uint32_t start, const std::vector<halfedge::Edge *> &loop)
+	{
 		const uint32_t vertexCount = loop.size() - start;
 		xaDebugAssert(vertexCount >= 3);
 		if (vertexCount < 3) return false;
@@ -5779,7 +6135,8 @@ private:
 		return true;
 	}
 
-	static void getBoundaryEdges(halfedge::Mesh *mesh, std::vector<halfedge::Edge *> &boundaryEdges) {
+	static void getBoundaryEdges(halfedge::Mesh *mesh, std::vector<halfedge::Edge *> &boundaryEdges)
+	{
 		xaDebugAssert(mesh != NULL);
 		const uint32_t edgeCount = mesh->edgeCount();
 		BitArray bitFlags(edgeCount);
@@ -5810,7 +6167,7 @@ private:
 	std::auto_ptr<halfedge::Mesh> m_unifiedMesh;
 	bool m_isDisk;
 	bool m_isVertexMapped;
-
+	
 	// List of faces of the original mesh that belong to this chart.
 	std::vector<uint32_t> m_faceArray;
 
@@ -5821,9 +6178,11 @@ private:
 };
 
 // Estimate quality of existing parameterization.
-class ParameterizationQuality {
+class ParameterizationQuality
+{
 public:
-	ParameterizationQuality() {
+	ParameterizationQuality()
+	{
 		m_totalTriangleCount = 0;
 		m_flippedTriangleCount = 0;
 		m_zeroAreaTriangleCount = 0;
@@ -5835,7 +6194,8 @@ public:
 		m_authalicMetric = 0.0f;
 	}
 
-	ParameterizationQuality(const halfedge::Mesh *mesh) {
+	ParameterizationQuality(const halfedge::Mesh *mesh)
+	{
 		xaDebugAssert(mesh != NULL);
 		m_totalTriangleCount = 0;
 		m_flippedTriangleCount = 0;
@@ -5879,33 +6239,39 @@ public:
 		xaDebugAssert(std::isfinite(m_authalicMetric));
 	}
 
-	bool isValid() const {
+	bool isValid() const
+	{
 		return m_flippedTriangleCount == 0; // @@ Does not test for self-overlaps.
 	}
 
-	float rmsStretchMetric() const {
+	float rmsStretchMetric() const
+	{
 		if (m_geometricArea == 0) return 0.0f;
 		float normFactor = sqrtf(m_parametricArea / m_geometricArea);
 		return sqrtf(m_stretchMetric / m_geometricArea) * normFactor;
 	}
 
-	float maxStretchMetric() const {
+	float maxStretchMetric() const
+	{
 		if (m_geometricArea == 0) return 0.0f;
 		float normFactor = sqrtf(m_parametricArea / m_geometricArea);
 		return m_maxStretchMetric * normFactor;
 	}
 
-	float rmsConformalMetric() const {
+	float rmsConformalMetric() const
+	{
 		if (m_geometricArea == 0) return 0.0f;
 		return sqrtf(m_conformalMetric / m_geometricArea);
 	}
 
-	float maxAuthalicMetric() const {
+	float maxAuthalicMetric() const
+	{
 		if (m_geometricArea == 0) return 0.0f;
 		return sqrtf(m_authalicMetric / m_geometricArea);
 	}
 
-	void operator+=(const ParameterizationQuality &pq) {
+	void operator+=(const ParameterizationQuality &pq)
+	{
 		m_totalTriangleCount += pq.m_totalTriangleCount;
 		m_flippedTriangleCount += pq.m_flippedTriangleCount;
 		m_zeroAreaTriangleCount += pq.m_zeroAreaTriangleCount;
@@ -5918,7 +6284,8 @@ public:
 	}
 
 private:
-	void processTriangle(Vector3 q[3], Vector2 p[3]) {
+	void processTriangle(Vector3 q[3], Vector2 p[3])
+	{
 		m_totalTriangleCount++;
 		// Evaluate texture stretch metric. See:
 		// - "Texture Mapping Progressive Meshes", Sander, Snyder, Gortler & Hoppe
@@ -5983,32 +6350,38 @@ private:
 };
 
 // Set of charts corresponding to a single mesh.
-class MeshCharts {
+class MeshCharts
+{
 public:
-	MeshCharts(const halfedge::Mesh *mesh) :
-			m_mesh(mesh) {}
+	MeshCharts(const halfedge::Mesh *mesh) : m_mesh(mesh) {}
 
-	~MeshCharts() {
+	~MeshCharts()
+	{
 		for (size_t i = 0; i < m_chartArray.size(); i++)
 			delete m_chartArray[i];
 	}
 
-	uint32_t chartCount() const {
+	uint32_t chartCount() const
+	{
 		return m_chartArray.size();
 	}
-	uint32_t vertexCount() const {
+	uint32_t vertexCount () const
+	{
 		return m_totalVertexCount;
 	}
 
-	const Chart *chartAt(uint32_t i) const {
+	const Chart *chartAt(uint32_t i) const
+	{
 		return m_chartArray[i];
 	}
-	Chart *chartAt(uint32_t i) {
+	Chart *chartAt(uint32_t i)
+	{
 		return m_chartArray[i];
 	}
 
 	// Extract the charts of the input mesh.
-	void extractCharts() {
+	void extractCharts()
+	{
 		const uint32_t faceCount = m_mesh->faceCount();
 		int first = 0;
 		std::vector<uint32_t> queue;
@@ -6108,7 +6481,8 @@ public:
 		  - emphasize roundness metrics to prevent those cases.
 	  - If interior self-overlaps: preserve boundary parameterization and use mean-value map.
 	*/
-	void computeCharts(const CharterOptions &options, const std::vector<uint32_t> &unchartedMaterialArray) {
+	void computeCharts(const CharterOptions &options, const std::vector<uint32_t> &unchartedMaterialArray)
+	{
 		Chart *vertexMap = NULL;
 		if (unchartedMaterialArray.size() != 0) {
 			vertexMap = new Chart();
@@ -6141,7 +6515,7 @@ public:
 			xaPrint("###   Placed %d seeds (max = %d)\n", builder.chartCount(), maxSeedCount);
 			builder.updateProxies();
 			builder.mergeCharts();
-#if 1
+	#if 1
 			xaPrint("### Relocating seeds\n");
 			builder.relocateSeeds();
 			xaPrint("### Reset charts\n");
@@ -6183,7 +6557,7 @@ public:
 					xaPrint("### Growing charts\n");
 				}
 			};
-#endif
+	#endif
 			// Make sure no holes are left!
 			xaDebugAssert(builder.facesLeft == 0);
 			const uint32_t chartCount = builder.chartArray.size();
@@ -6220,21 +6594,25 @@ public:
 		}
 	}
 
-	void parameterizeCharts() {
+	void parameterizeCharts()
+	{
 		ParameterizationQuality globalParameterizationQuality;
 		// Parameterize the charts.
 		uint32_t diskCount = 0;
 		const uint32_t chartCount = m_chartArray.size();
-		for (uint32_t i = 0; i < chartCount; i++) {
+		for (uint32_t i = 0; i < chartCount; i++)
+		{
 			Chart *chart = m_chartArray[i];
 
 			bool isValid = false;
 
-			if (chart->isVertexMapped()) {
+			if (chart->isVertexMapped())
+			{
 				continue;
 			}
 
-			if (chart->isDisk()) {
+			if (chart->isDisk())
+			{
 				diskCount++;
 				ParameterizationQuality chartParameterizationQuality;
 				if (chart->faceCount() == 1) {
@@ -6258,6 +6636,7 @@ public:
 
 			// Transfer parameterization from unified mesh to chart mesh.
 			chart->transferParameterization();
+
 		}
 		xaPrint("  Parameterized %d/%d charts.\n", diskCount, chartCount);
 		xaPrint("  RMS stretch metric: %f\n", globalParameterizationQuality.rmsStretchMetric());
@@ -6266,18 +6645,22 @@ public:
 		xaPrint("  RMS authalic metric: %f\n", globalParameterizationQuality.maxAuthalicMetric());
 	}
 
-	uint32_t faceChartAt(uint32_t i) const {
+	uint32_t faceChartAt(uint32_t i) const
+	{
 		return m_faceChart[i];
 	}
-	uint32_t faceIndexWithinChartAt(uint32_t i) const {
+	uint32_t faceIndexWithinChartAt(uint32_t i) const
+	{
 		return m_faceIndex[i];
 	}
 
-	uint32_t vertexCountBeforeChartAt(uint32_t i) const {
+	uint32_t vertexCountBeforeChartAt(uint32_t i) const
+	{
 		return m_chartVertexCountPrefixSum[i];
 	}
 
 private:
+
 	const halfedge::Mesh *m_mesh;
 
 	std::vector<Chart *> m_chartArray;
@@ -6290,26 +6673,32 @@ private:
 };
 
 /// An atlas is a set of charts.
-class Atlas {
+class Atlas
+{
 public:
-	~Atlas() {
+	~Atlas()
+	{
 		for (size_t i = 0; i < m_meshChartsArray.size(); i++)
 			delete m_meshChartsArray[i];
 	}
 
-	uint32_t meshCount() const {
+	uint32_t meshCount() const
+	{
 		return m_meshChartsArray.size();
 	}
 
-	const MeshCharts *meshAt(uint32_t i) const {
+	const MeshCharts *meshAt(uint32_t i) const
+	{
 		return m_meshChartsArray[i];
 	}
 
-	MeshCharts *meshAt(uint32_t i) {
+	MeshCharts *meshAt(uint32_t i)
+	{
 		return m_meshChartsArray[i];
 	}
 
-	uint32_t chartCount() const {
+	uint32_t chartCount() const
+	{
 		uint32_t count = 0;
 		for (uint32_t c = 0; c < m_meshChartsArray.size(); c++) {
 			count += m_meshChartsArray[c]->chartCount();
@@ -6317,7 +6706,8 @@ public:
 		return count;
 	}
 
-	const Chart *chartAt(uint32_t i) const {
+	const Chart *chartAt(uint32_t i) const
+	{
 		for (uint32_t c = 0; c < m_meshChartsArray.size(); c++) {
 			uint32_t count = m_meshChartsArray[c]->chartCount();
 			if (i < count) {
@@ -6328,7 +6718,8 @@ public:
 		return NULL;
 	}
 
-	Chart *chartAt(uint32_t i) {
+	Chart *chartAt(uint32_t i)
+	{
 		for (uint32_t c = 0; c < m_meshChartsArray.size(); c++) {
 			uint32_t count = m_meshChartsArray[c]->chartCount();
 			if (i < count) {
@@ -6341,23 +6732,27 @@ public:
 
 	// Add mesh charts and takes ownership.
 	// Extract the charts and add to this atlas.
-	void addMeshCharts(MeshCharts *meshCharts) {
+	void addMeshCharts(MeshCharts *meshCharts)
+	{
 		m_meshChartsArray.push_back(meshCharts);
 	}
 
-	void extractCharts(const halfedge::Mesh *mesh) {
+	void extractCharts(const halfedge::Mesh *mesh)
+	{
 		MeshCharts *meshCharts = new MeshCharts(mesh);
 		meshCharts->extractCharts();
 		addMeshCharts(meshCharts);
 	}
 
-	void computeCharts(const halfedge::Mesh *mesh, const CharterOptions &options, const std::vector<uint32_t> &unchartedMaterialArray) {
+	void computeCharts(const halfedge::Mesh *mesh, const CharterOptions &options, const std::vector<uint32_t> &unchartedMaterialArray)
+	{
 		MeshCharts *meshCharts = new MeshCharts(mesh);
 		meshCharts->computeCharts(options, unchartedMaterialArray);
 		addMeshCharts(meshCharts);
 	}
 
-	void parameterizeCharts() {
+	void parameterizeCharts()
+	{
 		for (uint32_t i = 0; i < m_meshChartsArray.size(); i++) {
 			m_meshChartsArray[i]->parameterizeCharts();
 		}
@@ -6367,11 +6762,10 @@ private:
 	std::vector<MeshCharts *> m_meshChartsArray;
 };
 
-struct AtlasPacker {
-	AtlasPacker(Atlas *atlas) :
-			m_atlas(atlas),
-			m_width(0),
-			m_height(0) {
+struct AtlasPacker
+{
+	AtlasPacker(Atlas *atlas) : m_atlas(atlas), m_width(0), m_height(0)
+	{
 		// Save the original uvs.
 		m_originalChartUvs.resize(m_atlas->chartCount());
 		for (uint32_t i = 0; i < m_atlas->chartCount(); i++) {
@@ -6386,7 +6780,8 @@ struct AtlasPacker {
 	uint32_t getHeight() const { return m_height; }
 
 	// Pack charts in the smallest possible rectangle.
-	void packCharts(const PackerOptions &options) {
+	void packCharts(const PackerOptions &options)
+	{
 		const uint32_t chartCount = m_atlas->chartCount();
 		if (chartCount == 0) return;
 		float texelsPerUnit = 1;
@@ -6415,7 +6810,7 @@ struct AtlasPacker {
 					meshArea += chartArea;
 					//chartOrderArray[c] = chartArea;
 					// Compute chart scale
-					float parametricArea = fabsf(chart->computeParametricArea()); // @@ There doesn't seem to be anything preventing parametric area to be negative.
+					float parametricArea = fabsf(chart->computeParametricArea());    // @@ There doesn't seem to be anything preventing parametric area to be negative.
 					if (parametricArea < NV_EPSILON) {
 						// When the parametric area is too small we use a rough approximation to prevent divisions by very small numbers.
 						Vector2 bounds = chart->computeParametricBounds();
@@ -6564,18 +6959,18 @@ struct AtlasPacker {
 					//    0   1   2
 					if (options.conservative) {
 						// Init all bits to 0.
-						chart_bitmap.resize(ftoi_ceil(chartExtents[c].x) + 1 + options.padding, ftoi_ceil(chartExtents[c].y) + 1 + options.padding, /*initValue=*/false); // + 2 to add padding on both sides.
+						chart_bitmap.resize(ftoi_ceil(chartExtents[c].x) + 1 + options.padding, ftoi_ceil(chartExtents[c].y) + 1 + options.padding, /*initValue=*/false);  // + 2 to add padding on both sides.
 						// Rasterize chart and dilate.
 						drawChartBitmapDilate(chart, &chart_bitmap, options.padding);
 					} else {
 						// Init all bits to 0.
-						chart_bitmap.resize(ftoi_ceil(chartExtents[c].x) + 1, ftoi_ceil(chartExtents[c].y) + 1, /*initValue=*/false); // Add half a texels on each side.
+						chart_bitmap.resize(ftoi_ceil(chartExtents[c].x) + 1, ftoi_ceil(chartExtents[c].y) + 1, /*initValue=*/false);  // Add half a texels on each side.
 						// Rasterize chart and dilate.
 						drawChartBitmap(chart, &chart_bitmap, Vector2(1), Vector2(0.5));
 					}
 				}
 				int best_x, best_y;
-				int best_cw, best_ch; // Includes padding now.
+				int best_cw, best_ch;   // Includes padding now.
 				int best_r;
 				findChartLocation(options.quality, &chart_bitmap, chartExtents[c], w, h, &best_x, &best_y, &best_cw, &best_ch, &best_r, chart->blockAligned);
 				/*if (w < best_x + best_cw || h < best_y + best_ch)
@@ -6629,7 +7024,8 @@ struct AtlasPacker {
 		}
 	}
 
-	float computeAtlasUtilization() const {
+	float computeAtlasUtilization() const
+	{
 		const uint32_t w = m_width;
 		const uint32_t h = m_height;
 		xaDebugAssert(w <= m_bitmap.width());
@@ -6644,7 +7040,8 @@ struct AtlasPacker {
 	}
 
 private:
-	void resetUvs() {
+	void resetUvs()
+	{
 		for (uint32_t i = 0; i < m_atlas->chartCount(); i++) {
 			halfedge::Mesh *mesh = m_atlas->chartAt(i)->chartMesh();
 			for (uint32_t j = 0; j < mesh->vertexCount(); j++)
@@ -6656,7 +7053,8 @@ private:
 	// is occupied at this point. At the end we have many small charts and a large atlas with sparse holes. Finding those holes randomly is slow. A better approach would be to
 	// start stacking large charts as if they were tetris pieces. Once charts get small try to place them randomly. It may be interesting to try a intermediate strategy, first try
 	// along one axis and then try exhaustively along that axis.
-	void findChartLocation(int quality, const BitMap *bitmap, Vector2::Arg extents, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, bool blockAligned) {
+	void findChartLocation(int quality, const BitMap *bitmap, Vector2::Arg extents, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, bool blockAligned)
+	{
 		int attempts = 256;
 		if (quality == 1) attempts = 4096;
 		if (quality == 2) attempts = 2048;
@@ -6669,7 +7067,8 @@ private:
 		}
 	}
 
-	void findChartLocation_bruteForce(const BitMap *bitmap, Vector2::Arg /*extents*/, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, bool blockAligned) {
+	void findChartLocation_bruteForce(const BitMap *bitmap, Vector2::Arg /*extents*/, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, bool blockAligned)
+	{
 		const int BLOCK_SIZE = 4;
 		int best_metric = INT_MAX;
 		int step_size = blockAligned ? BLOCK_SIZE : 1;
@@ -6708,10 +7107,11 @@ private:
 			}
 		}
 	done:
-		xaDebugAssert(best_metric != INT_MAX);
+		xaDebugAssert (best_metric != INT_MAX);
 	}
 
-	void findChartLocation_random(const BitMap *bitmap, Vector2::Arg /*extents*/, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, int minTrialCount, bool blockAligned) {
+	void findChartLocation_random(const BitMap *bitmap, Vector2::Arg /*extents*/, int w, int h, int *best_x, int *best_y, int *best_w, int *best_h, int *best_r, int minTrialCount, bool blockAligned)
+	{
 		const int BLOCK_SIZE = 4;
 		int best_metric = INT_MAX;
 		for (int i = 0; i < minTrialCount || best_metric == INT_MAX; i++) {
@@ -6752,7 +7152,8 @@ private:
 		}
 	}
 
-	void drawChartBitmapDilate(const Chart *chart, BitMap *bitmap, int padding) {
+	void drawChartBitmapDilate(const Chart *chart, BitMap *bitmap, int padding)
+	{
 		const int w = bitmap->width();
 		const int h = bitmap->height();
 		const Vector2 extents = Vector2(float(w), float(h));
@@ -6802,7 +7203,8 @@ private:
 		}
 	}
 
-	void drawChartBitmap(const Chart *chart, BitMap *bitmap, const Vector2 &scale, const Vector2 &offset) {
+	void drawChartBitmap(const Chart *chart, BitMap *bitmap, const Vector2 &scale, const Vector2 &offset)
+	{
 		const int w = bitmap->width();
 		const int h = bitmap->height();
 		const Vector2 extents = Vector2(float(w), float(h));
@@ -6863,7 +7265,8 @@ private:
 		std::swap(tmp, *bitmap);
 	}
 
-	bool canAddChart(const BitMap *bitmap, int atlas_w, int atlas_h, int offset_x, int offset_y, int r) {
+	bool canAddChart(const BitMap *bitmap, int atlas_w, int atlas_h, int offset_x, int offset_y, int r)
+	{
 		xaDebugAssert(r == 0 || r == 1);
 		// Check whether the two bitmaps overlap.
 		const int w = bitmap->width();
@@ -6904,7 +7307,8 @@ private:
 		return true;
 	}
 
-	void addChart(const BitMap *bitmap, int atlas_w, int atlas_h, int offset_x, int offset_y, int r) {
+	void addChart(const BitMap *bitmap, int atlas_w, int atlas_h, int offset_x, int offset_y, int r)
+	{
 		xaDebugAssert(r == 0 || r == 1);
 		// Check whether the two bitmaps overlap.
 		const int w = bitmap->width();
@@ -6946,8 +7350,9 @@ private:
 		}
 	}
 
-	static bool setBitsCallback(void *param, int x, int y, Vector3::Arg, Vector3::Arg, Vector3::Arg, float area) {
-		BitMap *bitmap = (BitMap *)param;
+	static bool setBitsCallback(void *param, int x, int y, Vector3::Arg, Vector3::Arg, Vector3::Arg, float area)
+	{
+		BitMap *bitmap = (BitMap * )param;
 		if (area > 0.0) {
 			bitmap->setBitAt(x, y);
 		}
@@ -6955,7 +7360,8 @@ private:
 	}
 
 	// Compute the convex hull using Graham Scan.
-	static void convexHull(const std::vector<Vector2> &input, std::vector<Vector2> &output, float epsilon) {
+	static void convexHull(const std::vector<Vector2> &input, std::vector<Vector2> &output, float epsilon)
+	{
 		const uint32_t inputCount = input.size();
 		std::vector<float> coords(inputCount);
 		for (uint32_t i = 0; i < inputCount; i++) {
@@ -6984,7 +7390,7 @@ private:
 		output.clear();
 		output.push_back(top[0]);
 		output.push_back(top[1]);
-		for (uint32_t i = 2; i < top.size();) {
+		for (uint32_t i = 2; i < top.size(); ) {
 			Vector2 a = output[output.size() - 2];
 			Vector2 b = output[output.size() - 1];
 			Vector2 c = top[i];
@@ -7000,7 +7406,7 @@ private:
 		uint32_t top_count = output.size();
 		output.push_back(bottom[1]);
 		// Filter bottom list.
-		for (uint32_t i = 2; i < bottom.size();) {
+		for (uint32_t i = 2; i < bottom.size(); ) {
 			Vector2 a = output[output.size() - 2];
 			Vector2 b = output[output.size() - 1];
 			Vector2 c = bottom[i];
@@ -7019,7 +7425,8 @@ private:
 	}
 
 	// This should compute convex hull and use rotating calipers to find the best box. Currently it uses a brute force method.
-	static void computeBoundingBox(Chart *chart, Vector2 *majorAxis, Vector2 *minorAxis, Vector2 *minCorner, Vector2 *maxCorner) {
+	static void computeBoundingBox(Chart *chart, Vector2 *majorAxis, Vector2 *minorAxis, Vector2 *minCorner, Vector2 *maxCorner)
+	{
 		// Compute list of boundary points.
 		std::vector<Vector2> points;
 		points.reserve(16);
@@ -7096,7 +7503,8 @@ private:
 } // namespace param
 } // namespace internal
 
-struct Atlas {
+struct Atlas
+{
 	internal::param::Atlas atlas;
 	std::vector<internal::halfedge::Mesh *> heMeshes;
 	uint32_t width = 0;
@@ -7104,65 +7512,75 @@ struct Atlas {
 	OutputMesh **outputMeshes = NULL;
 };
 
-void SetPrint(PrintFunc print) {
+void SetPrint(PrintFunc print)
+{
 	internal::s_print = print;
 }
 
-Atlas *Create() {
+Atlas *Create()
+{
 	Atlas *atlas = new Atlas();
 	return atlas;
 }
 
-void Destroy(Atlas *atlas) {
+void Destroy(Atlas *atlas)
+{
 	xaAssert(atlas);
 	for (int i = 0; i < (int)atlas->heMeshes.size(); i++) {
 		delete atlas->heMeshes[i];
 		if (atlas->outputMeshes) {
 			OutputMesh *outputMesh = atlas->outputMeshes[i];
 			for (uint32_t j = 0; j < outputMesh->chartCount; j++)
-				delete[] outputMesh->chartArray[j].indexArray;
-			delete[] outputMesh->chartArray;
-			delete[] outputMesh->vertexArray;
-			delete[] outputMesh->indexArray;
+				delete [] outputMesh->chartArray[j].indexArray;
+			delete [] outputMesh->chartArray;
+			delete [] outputMesh->vertexArray;
+			delete [] outputMesh->indexArray;
 			delete outputMesh;
 		}
 	}
-	delete[] atlas->outputMeshes;
+	delete [] atlas->outputMeshes;
 	delete atlas;
 }
 
-static internal::Vector3 DecodePosition(const InputMesh &mesh, uint32_t index) {
+static internal::Vector3 DecodePosition(const InputMesh &mesh, uint32_t index)
+{
 	xaAssert(mesh.vertexPositionData);
 	return *((const internal::Vector3 *)&((const uint8_t *)mesh.vertexPositionData)[mesh.vertexPositionStride * index]);
 }
 
-static internal::Vector3 DecodeNormal(const InputMesh &mesh, uint32_t index) {
+static internal::Vector3 DecodeNormal(const InputMesh &mesh, uint32_t index)
+{
 	xaAssert(mesh.vertexNormalData);
 	return *((const internal::Vector3 *)&((const uint8_t *)mesh.vertexNormalData)[mesh.vertexNormalStride * index]);
 }
 
-static internal::Vector2 DecodeUv(const InputMesh &mesh, uint32_t index) {
+static internal::Vector2 DecodeUv(const InputMesh &mesh, uint32_t index)
+{
 	xaAssert(mesh.vertexUvData);
 	return *((const internal::Vector2 *)&((const uint8_t *)mesh.vertexUvData)[mesh.vertexUvStride * index]);
 }
 
-static uint32_t DecodeIndex(IndexFormat::Enum format, const void *indexData, uint32_t i) {
+static uint32_t DecodeIndex(IndexFormat::Enum format, const void *indexData, uint32_t i)
+{
 	if (format == IndexFormat::HalfFloat)
 		return (uint32_t)((const uint16_t *)indexData)[i];
 	return ((const uint32_t *)indexData)[i];
 }
 
-static float EdgeLength(internal::Vector3 pos1, internal::Vector3 pos2) {
+static float EdgeLength(internal::Vector3 pos1, internal::Vector3 pos2)
+{
 	return internal::length(pos2 - pos1);
 }
 
-AddMeshError AddMesh(Atlas *atlas, const InputMesh &mesh, bool useColocalVertices) {
+AddMeshError AddMesh(Atlas *atlas, const InputMesh &mesh, bool useColocalVertices)
+{
 	xaAssert(atlas);
 	AddMeshError error;
 	error.code = AddMeshErrorCode::Success;
 	error.face = error.index0 = error.index1 = UINT32_MAX;
 	// Expecting triangle faces.
-	if ((mesh.indexCount % 3) != 0) {
+	if ((mesh.indexCount % 3) != 0)
+	{
 		error.code = AddMeshErrorCode::InvalidIndexCount;
 		return error;
 	}
@@ -7239,23 +7657,22 @@ AddMeshError AddMesh(Atlas *atlas, const InputMesh &mesh, bool useColocalVertice
 		}
 		internal::halfedge::Face *face = heMesh->addFace(tri[0], tri[1], tri[2]);
 
+		// -- GODOT start --
 		if (!face && heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::AlreadyAddedEdge) {
 			//there is still hope for this, no reason to not add, at least add as separate
 			face = heMesh->addUniqueFace(tri[0], tri[1], tri[2]);
 		}
+		// -- GODOT end --
 
 		if (!face) {
-			//continue;
-
-			if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::AlreadyAddedEdge) {
+			if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::AlreadyAddedEdge)
 				error.code = AddMeshErrorCode::AlreadyAddedEdge;
-			} else if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::DegenerateColocalEdge) {
+			else if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::DegenerateColocalEdge)
 				error.code = AddMeshErrorCode::DegenerateColocalEdge;
-			} else if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::DegenerateEdge) {
+			else if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::DegenerateEdge)
 				error.code = AddMeshErrorCode::DegenerateEdge;
-			} else if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::DuplicateEdge) {
+			else if (heMesh->errorCode == internal::halfedge::Mesh::ErrorCode::DuplicateEdge)
 				error.code = AddMeshErrorCode::DuplicateEdge;
-			}
 			error.face = i;
 			error.index0 = heMesh->errorIndex0;
 			error.index1 = heMesh->errorIndex1;
@@ -7270,7 +7687,8 @@ AddMeshError AddMesh(Atlas *atlas, const InputMesh &mesh, bool useColocalVertice
 	return error;
 }
 
-void Generate(Atlas *atlas, CharterOptions charterOptions, PackerOptions packerOptions) {
+void Generate(Atlas *atlas, CharterOptions charterOptions, PackerOptions packerOptions)
+{
 	xaAssert(atlas);
 	xaAssert(packerOptions.texelArea > 0);
 	// Chart meshes.
@@ -7285,7 +7703,7 @@ void Generate(Atlas *atlas, CharterOptions charterOptions, PackerOptions packerO
 	atlas->width = packer.getWidth();
 	atlas->height = packer.getHeight();
 	// Build output meshes.
-	atlas->outputMeshes = new OutputMesh *[atlas->heMeshes.size()];
+	atlas->outputMeshes = new OutputMesh*[atlas->heMeshes.size()];
 	for (int i = 0; i < (int)atlas->heMeshes.size(); i++) {
 		const internal::halfedge::Mesh *heMesh = atlas->heMeshes[i];
 		OutputMesh *outputMesh = atlas->outputMeshes[i] = new OutputMesh;
@@ -7341,27 +7759,32 @@ void Generate(Atlas *atlas, CharterOptions charterOptions, PackerOptions packerO
 	}
 }
 
-uint32_t GetWidth(const Atlas *atlas) {
+uint32_t GetWidth(const Atlas *atlas)
+{
 	xaAssert(atlas);
 	return atlas->width;
 }
 
-uint32_t GetHeight(const Atlas *atlas) {
+uint32_t GetHeight(const Atlas *atlas)
+{
 	xaAssert(atlas);
 	return atlas->height;
 }
 
-uint32_t GetNumCharts(const Atlas *atlas) {
+uint32_t GetNumCharts(const Atlas *atlas)
+{
 	xaAssert(atlas);
 	return atlas->atlas.chartCount();
 }
 
-const OutputMesh *const *GetOutputMeshes(const Atlas *atlas) {
+const OutputMesh * const *GetOutputMeshes(const Atlas *atlas)
+{
 	xaAssert(atlas);
 	return atlas->outputMeshes;
 }
 
-const char *StringForEnum(AddMeshErrorCode::Enum error) {
+const char *StringForEnum(AddMeshErrorCode::Enum error)
+{
 	if (error == AddMeshErrorCode::AlreadyAddedEdge)
 		return "already added edge";
 	if (error == AddMeshErrorCode::DegenerateColocalEdge)
diff --git a/thirdparty/xatlas/xatlas.h b/thirdparty/xatlas/xatlas.h
index 4140429fee..dbf8ca08c7 100644
--- a/thirdparty/xatlas/xatlas.h
+++ b/thirdparty/xatlas/xatlas.h
@@ -3,15 +3,18 @@
 #ifndef XATLAS_H
 #define XATLAS_H
 #include <float.h> // FLT_MAX
-#include <limits.h>
-#include <stdint.h>
+// -- GODOT start --
+#include <limits.h> // INT_MAX, UINT_MAX
+// -- GODOT end --
+
 namespace xatlas {
 
 typedef void (*PrintFunc)(const char *, ...);
 
 struct Atlas;
 
-struct CharterOptions {
+struct CharterOptions
+{
 	float proxyFitMetricWeight;
 	float roundnessMetricWeight;
 	float straightnessMetricWeight;
@@ -20,7 +23,8 @@ struct CharterOptions {
 	float maxChartArea;
 	float maxBoundaryLength;
 
-	CharterOptions() {
+	CharterOptions()
+	{
 		// These are the default values we use on The Witness.
 		proxyFitMetricWeight = 2.0f;
 		roundnessMetricWeight = 0.01f;
@@ -39,15 +43,18 @@ struct CharterOptions {
 	}
 };
 
-struct PackMethod {
-	enum Enum {
+struct PackMethod
+{
+	enum Enum
+	{
 		TexelArea, // texel_area determines resolution
 		ApproximateResolution, // guess texel_area to approximately match desired resolution
 		ExactResolution // run the packer multiple times to exactly match the desired resolution (slow)
 	};
 };
 
-struct PackerOptions {
+struct PackerOptions
+{
 	PackMethod::Enum method;
 
 	// 0 - brute force
@@ -59,13 +66,14 @@ struct PackerOptions {
 	// Avoid brute force packing, since it can be unusably slow in some situations.
 	int quality;
 
-	float texelArea; // This is not really texel area, but 1 / texel width?
+	float texelArea;       // This is not really texel area, but 1 / texel width?
 	uint32_t resolution;
-	bool blockAlign; // Align charts to 4x4 blocks.
-	bool conservative; // Pack charts with extra padding.
+	bool blockAlign;       // Align charts to 4x4 blocks. 
+	bool conservative;      // Pack charts with extra padding.
 	int padding;
 
-	PackerOptions() {
+	PackerOptions()
+	{
 		method = PackMethod::ApproximateResolution;
 		quality = 1;
 		texelArea = 8;
@@ -76,8 +84,10 @@ struct PackerOptions {
 	}
 };
 
-struct AddMeshErrorCode {
-	enum Enum {
+struct AddMeshErrorCode
+{
+	enum Enum
+	{
 		Success,
 		AlreadyAddedEdge, // index0 and index1 are the edge indices
 		DegenerateColocalEdge, // index0 and index1 are the edge indices
@@ -90,20 +100,24 @@ struct AddMeshErrorCode {
 	};
 };
 
-struct AddMeshError {
+struct AddMeshError
+{
 	AddMeshErrorCode::Enum code;
 	uint32_t face;
 	uint32_t index0, index1;
 };
 
-struct IndexFormat {
-	enum Enum {
+struct IndexFormat
+{
+	enum Enum
+	{
 		HalfFloat,
 		Float
 	};
 };
 
-struct InputMesh {
+struct InputMesh
+{
 	uint32_t vertexCount;
 	const void *vertexPositionData;
 	uint32_t vertexPositionStride;
@@ -124,17 +138,20 @@ struct InputMesh {
 	const uint16_t *faceMaterialData;
 };
 
-struct OutputChart {
+struct OutputChart
+{
 	uint32_t *indexArray;
 	uint32_t indexCount;
 };
 
-struct OutputVertex {
+struct OutputVertex
+{
 	float uv[2];
-	uint32_t xref; // Index of input vertex from which this output vertex originated.
+	uint32_t xref;   // Index of input vertex from which this output vertex originated.
 };
 
-struct OutputMesh {
+struct OutputMesh
+{
 	OutputChart *chartArray;
 	uint32_t chartCount;
 	uint32_t *indexArray;
@@ -152,7 +169,7 @@ void Generate(Atlas *atlas, CharterOptions charterOptions = CharterOptions(), Pa
 uint32_t GetWidth(const Atlas *atlas);
 uint32_t GetHeight(const Atlas *atlas);
 uint32_t GetNumCharts(const Atlas *atlas);
-const OutputMesh *const *GetOutputMeshes(const Atlas *atlas);
+const OutputMesh * const *GetOutputMeshes(const Atlas *atlas);
 const char *StringForEnum(AddMeshErrorCode::Enum error);
 
 } // namespace xatlas
diff --git a/thirdparty/zstd/common/compiler.h b/thirdparty/zstd/common/compiler.h
index 7f561282ca..0836e3ed27 100644
--- a/thirdparty/zstd/common/compiler.h
+++ b/thirdparty/zstd/common/compiler.h
@@ -40,7 +40,7 @@
 
 /**
  * FORCE_INLINE_TEMPLATE is used to define C "templates", which take constant
- * parameters. They must be inlined for the compiler to elimininate the constant
+ * parameters. They must be inlined for the compiler to eliminate the constant
  * branches.
  */
 #define FORCE_INLINE_TEMPLATE static INLINE_KEYWORD FORCE_INLINE_ATTR
diff --git a/thirdparty/zstd/common/fse.h b/thirdparty/zstd/common/fse.h
index f72c519b25..811c670bdd 100644
--- a/thirdparty/zstd/common/fse.h
+++ b/thirdparty/zstd/common/fse.h
@@ -358,7 +358,7 @@ size_t FSE_decompress_wksp(void* dst, size_t dstCapacity, const void* cSrc, size
 typedef enum {
    FSE_repeat_none,  /**< Cannot use the previous table */
    FSE_repeat_check, /**< Can use the previous table but it must be checked */
-   FSE_repeat_valid  /**< Can use the previous table and it is asumed to be valid */
+   FSE_repeat_valid  /**< Can use the previous table and it is assumed to be valid */
  } FSE_repeat;
 
 /* *****************************************
diff --git a/thirdparty/zstd/common/threading.c b/thirdparty/zstd/common/threading.c
index 8be8c8da94..f3d4fa8418 100644
--- a/thirdparty/zstd/common/threading.c
+++ b/thirdparty/zstd/common/threading.c
@@ -14,8 +14,8 @@
  * This file will hold wrapper for systems, which do not support pthreads
  */
 
-/* create fake symbol to avoid empty trnaslation unit warning */
-int g_ZSTD_threading_useles_symbol;
+/* create fake symbol to avoid empty translation unit warning */
+int g_ZSTD_threading_useless_symbol;
 
 #if defined(ZSTD_MULTITHREAD) && defined(_WIN32)
 
diff --git a/thirdparty/zstd/common/xxhash.c b/thirdparty/zstd/common/xxhash.c
index 532b816192..30599aaae4 100644
--- a/thirdparty/zstd/common/xxhash.c
+++ b/thirdparty/zstd/common/xxhash.c
@@ -66,10 +66,10 @@
 /* #define XXH_ACCEPT_NULL_INPUT_POINTER 1 */
 
 /*!XXH_FORCE_NATIVE_FORMAT :
- * By default, xxHash library provides endian-independant Hash values, based on little-endian convention.
+ * By default, xxHash library provides endian-independent Hash values, based on little-endian convention.
  * Results are therefore identical for little-endian and big-endian CPU.
  * This comes at a performance cost for big-endian CPU, since some swapping is required to emulate little-endian format.
- * Should endian-independance be of no importance for your application, you may set the #define below to 1,
+ * Should endian-independence be of no importance for your application, you may set the #define below to 1,
  * to improve speed for Big-endian CPU.
  * This option has no impact on Little_Endian CPU.
  */
diff --git a/thirdparty/zstd/common/zstd_internal.h b/thirdparty/zstd/common/zstd_internal.h
index edeb74b9c3..31f756ab58 100644
--- a/thirdparty/zstd/common/zstd_internal.h
+++ b/thirdparty/zstd/common/zstd_internal.h
@@ -53,8 +53,50 @@ extern "C" {
 #undef MAX
 #define MIN(a,b) ((a)<(b) ? (a) : (b))
 #define MAX(a,b) ((a)>(b) ? (a) : (b))
-#define CHECK_F(f) { size_t const errcod = f; if (ERR_isError(errcod)) return errcod; }  /* check and Forward error code */
-#define CHECK_E(f, e) { size_t const errcod = f; if (ERR_isError(errcod)) return ERROR(e); }  /* check and send Error code */
+
+/**
+ * Return the specified error if the condition evaluates to true.
+ *
+ * In debug modes, prints additional information. In order to do that
+ * (particularly, printing the conditional that failed), this can't just wrap
+ * RETURN_ERROR().
+ */
+#define RETURN_ERROR_IF(cond, err, ...) \
+  if (cond) { \
+    RAWLOG(3, "%s:%d: ERROR!: check %s failed, returning %s", __FILE__, __LINE__, ZSTD_QUOTE(cond), ZSTD_QUOTE(ERROR(err))); \
+    RAWLOG(3, ": " __VA_ARGS__); \
+    RAWLOG(3, "\n"); \
+    return ERROR(err); \
+  }
+
+/**
+ * Unconditionally return the specified error.
+ *
+ * In debug modes, prints additional information.
+ */
+#define RETURN_ERROR(err, ...) \
+  do { \
+    RAWLOG(3, "%s:%d: ERROR!: unconditional check failed, returning %s", __FILE__, __LINE__, ZSTD_QUOTE(ERROR(err))); \
+    RAWLOG(3, ": " __VA_ARGS__); \
+    RAWLOG(3, "\n"); \
+    return ERROR(err); \
+  } while(0);
+
+/**
+ * If the provided expression evaluates to an error code, returns that error code.
+ *
+ * In debug modes, prints additional information.
+ */
+#define FORWARD_IF_ERROR(err, ...) \
+  do { \
+    size_t const err_code = (err); \
+    if (ERR_isError(err_code)) { \
+      RAWLOG(3, "%s:%d: ERROR!: forwarding error in %s: %s", __FILE__, __LINE__, ZSTD_QUOTE(err), ERR_getErrorName(err_code)); \
+      RAWLOG(3, ": " __VA_ARGS__); \
+      RAWLOG(3, "\n"); \
+      return err_code; \
+    } \
+  } while(0);
 
 
 /*-*************************************
@@ -200,6 +242,17 @@ typedef struct {
     U32   longLengthPos;
 } seqStore_t;
 
+/**
+ * Contains the compressed frame size and an upper-bound for the decompressed frame size.
+ * Note: before using `compressedSize`, check for errors using ZSTD_isError().
+ *       similarly, before using `decompressedBound`, check for errors using:
+ *          `decompressedBound != ZSTD_CONTENTSIZE_ERROR`
+ */
+typedef struct {
+    size_t compressedSize;
+    unsigned long long decompressedBound;
+} ZSTD_frameSizeInfo;   /* decompress & legacy */
+
 const seqStore_t* ZSTD_getSeqStore(const ZSTD_CCtx* ctx);   /* compress & dictBuilder */
 void ZSTD_seqToCodes(const seqStore_t* seqStorePtr);   /* compress, dictBuilder, decodeCorpus (shouldn't get its definition from here) */
 
diff --git a/thirdparty/zstd/compress/fse_compress.c b/thirdparty/zstd/compress/fse_compress.c
index 60f357bbd2..68b47e1093 100644
--- a/thirdparty/zstd/compress/fse_compress.c
+++ b/thirdparty/zstd/compress/fse_compress.c
@@ -129,9 +129,9 @@ size_t FSE_buildCTable_wksp(FSE_CTable* ct,
     {   U32 position = 0;
         U32 symbol;
         for (symbol=0; symbol<=maxSymbolValue; symbol++) {
-            int nbOccurences;
+            int nbOccurrences;
             int const freq = normalizedCounter[symbol];
-            for (nbOccurences=0; nbOccurences<freq; nbOccurences++) {
+            for (nbOccurrences=0; nbOccurrences<freq; nbOccurrences++) {
                 tableSymbol[position] = (FSE_FUNCTION_TYPE)symbol;
                 position = (position + step) & tableMask;
                 while (position > highThreshold)
diff --git a/thirdparty/zstd/compress/zstd_compress.c b/thirdparty/zstd/compress/zstd_compress.c
index c2c9d3bc55..2e163c8bf3 100644
--- a/thirdparty/zstd/compress/zstd_compress.c
+++ b/thirdparty/zstd/compress/zstd_compress.c
@@ -103,12 +103,31 @@ ZSTD_CCtx* ZSTD_initStaticCCtx(void *workspace, size_t workspaceSize)
     return cctx;
 }
 
+/**
+ * Clears and frees all of the dictionaries in the CCtx.
+ */
+static void ZSTD_clearAllDicts(ZSTD_CCtx* cctx)
+{
+    ZSTD_free(cctx->localDict.dictBuffer, cctx->customMem);
+    ZSTD_freeCDict(cctx->localDict.cdict);
+    memset(&cctx->localDict, 0, sizeof(cctx->localDict));
+    memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict));
+    cctx->cdict = NULL;
+}
+
+static size_t ZSTD_sizeof_localDict(ZSTD_localDict dict)
+{
+    size_t const bufferSize = dict.dictBuffer != NULL ? dict.dictSize : 0;
+    size_t const cdictSize = ZSTD_sizeof_CDict(dict.cdict);
+    return bufferSize + cdictSize;
+}
+
 static void ZSTD_freeCCtxContent(ZSTD_CCtx* cctx)
 {
     assert(cctx != NULL);
     assert(cctx->staticSize == 0);
     ZSTD_free(cctx->workSpace, cctx->customMem); cctx->workSpace = NULL;
-    ZSTD_freeCDict(cctx->cdictLocal); cctx->cdictLocal = NULL;
+    ZSTD_clearAllDicts(cctx);
 #ifdef ZSTD_MULTITHREAD
     ZSTDMT_freeCCtx(cctx->mtctx); cctx->mtctx = NULL;
 #endif
@@ -117,7 +136,8 @@ static void ZSTD_freeCCtxContent(ZSTD_CCtx* cctx)
 size_t ZSTD_freeCCtx(ZSTD_CCtx* cctx)
 {
     if (cctx==NULL) return 0;   /* support free on NULL */
-    if (cctx->staticSize) return ERROR(memory_allocation);   /* not compatible with static CCtx */
+    RETURN_ERROR_IF(cctx->staticSize, memory_allocation,
+                    "not compatible with static CCtx");
     ZSTD_freeCCtxContent(cctx);
     ZSTD_free(cctx, cctx->customMem);
     return 0;
@@ -139,7 +159,7 @@ size_t ZSTD_sizeof_CCtx(const ZSTD_CCtx* cctx)
 {
     if (cctx==NULL) return 0;   /* support sizeof on NULL */
     return sizeof(*cctx) + cctx->workSpaceSize
-           + ZSTD_sizeof_CDict(cctx->cdictLocal)
+           + ZSTD_sizeof_localDict(cctx->localDict)
            + ZSTD_sizeof_mtctx(cctx);
 }
 
@@ -195,7 +215,7 @@ size_t ZSTD_CCtxParams_reset(ZSTD_CCtx_params* params)
 }
 
 size_t ZSTD_CCtxParams_init(ZSTD_CCtx_params* cctxParams, int compressionLevel) {
-    if (!cctxParams) { return ERROR(GENERIC); }
+    RETURN_ERROR_IF(!cctxParams, GENERIC);
     memset(cctxParams, 0, sizeof(*cctxParams));
     cctxParams->compressionLevel = compressionLevel;
     cctxParams->fParams.contentSizeFlag = 1;
@@ -204,8 +224,8 @@ size_t ZSTD_CCtxParams_init(ZSTD_CCtx_params* cctxParams, int compressionLevel)
 
 size_t ZSTD_CCtxParams_init_advanced(ZSTD_CCtx_params* cctxParams, ZSTD_parameters params)
 {
-    if (!cctxParams) { return ERROR(GENERIC); }
-    CHECK_F( ZSTD_checkCParams(params.cParams) );
+    RETURN_ERROR_IF(!cctxParams, GENERIC);
+    FORWARD_IF_ERROR( ZSTD_checkCParams(params.cParams) );
     memset(cctxParams, 0, sizeof(*cctxParams));
     cctxParams->cParams = params.cParams;
     cctxParams->fParams = params.fParams;
@@ -359,6 +379,12 @@ ZSTD_bounds ZSTD_cParam_getBounds(ZSTD_cParameter param)
         bounds.upperBound = ZSTD_dictForceCopy;       /* note : how to ensure at compile time that this is the highest value enum ? */
         return bounds;
 
+    case ZSTD_c_literalCompressionMode:
+        ZSTD_STATIC_ASSERT(ZSTD_lcm_auto < ZSTD_lcm_huffman && ZSTD_lcm_huffman < ZSTD_lcm_uncompressed);
+        bounds.lowerBound = ZSTD_lcm_auto;
+        bounds.upperBound = ZSTD_lcm_uncompressed;
+        return bounds;
+
     default:
         {   ZSTD_bounds const boundError = { ERROR(parameter_unsupported), 0, 0 };
             return boundError;
@@ -378,10 +404,22 @@ static int ZSTD_cParam_withinBounds(ZSTD_cParameter cParam, int value)
     return 1;
 }
 
-#define BOUNDCHECK(cParam, val) {                  \
-    if (!ZSTD_cParam_withinBounds(cParam,val)) {   \
-        return ERROR(parameter_outOfBound);        \
-}   }
+/* ZSTD_cParam_clampBounds:
+ * Clamps the value into the bounded range.
+ */
+static size_t ZSTD_cParam_clampBounds(ZSTD_cParameter cParam, int* value)
+{
+    ZSTD_bounds const bounds = ZSTD_cParam_getBounds(cParam);
+    if (ZSTD_isError(bounds.error)) return bounds.error;
+    if (*value < bounds.lowerBound) *value = bounds.lowerBound;
+    if (*value > bounds.upperBound) *value = bounds.upperBound;
+    return 0;
+}
+
+#define BOUNDCHECK(cParam, val) { \
+    RETURN_ERROR_IF(!ZSTD_cParam_withinBounds(cParam,val), \
+                    parameter_outOfBound); \
+}
 
 
 static int ZSTD_isUpdateAuthorized(ZSTD_cParameter param)
@@ -413,6 +451,7 @@ static int ZSTD_isUpdateAuthorized(ZSTD_cParameter param)
     case ZSTD_c_ldmBucketSizeLog:
     case ZSTD_c_ldmHashRateLog:
     case ZSTD_c_forceAttachDict:
+    case ZSTD_c_literalCompressionMode:
     default:
         return 0;
     }
@@ -425,18 +464,17 @@ size_t ZSTD_CCtx_setParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, int value)
         if (ZSTD_isUpdateAuthorized(param)) {
             cctx->cParamsChanged = 1;
         } else {
-            return ERROR(stage_wrong);
+            RETURN_ERROR(stage_wrong);
     }   }
 
     switch(param)
     {
-    case ZSTD_c_format :
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
+    case ZSTD_c_nbWorkers:
+        RETURN_ERROR_IF((value!=0) && cctx->staticSize, parameter_unsupported,
+                        "MT not compatible with static alloc");
+        break;
 
     case ZSTD_c_compressionLevel:
-        if (cctx->cdict) return ERROR(stage_wrong);
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
     case ZSTD_c_windowLog:
     case ZSTD_c_hashLog:
     case ZSTD_c_chainLog:
@@ -444,49 +482,32 @@ size_t ZSTD_CCtx_setParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, int value)
     case ZSTD_c_minMatch:
     case ZSTD_c_targetLength:
     case ZSTD_c_strategy:
-        if (cctx->cdict) return ERROR(stage_wrong);
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
+    case ZSTD_c_ldmHashRateLog:
+    case ZSTD_c_format:
     case ZSTD_c_contentSizeFlag:
     case ZSTD_c_checksumFlag:
     case ZSTD_c_dictIDFlag:
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
-    case ZSTD_c_forceMaxWindow :  /* Force back-references to remain < windowSize,
-                                   * even when referencing into Dictionary content.
-                                   * default : 0 when using a CDict, 1 when using a Prefix */
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
+    case ZSTD_c_forceMaxWindow:
     case ZSTD_c_forceAttachDict:
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
-    case ZSTD_c_nbWorkers:
-        if ((value!=0) && cctx->staticSize) {
-            return ERROR(parameter_unsupported);  /* MT not compatible with static alloc */
-        }
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
+    case ZSTD_c_literalCompressionMode:
     case ZSTD_c_jobSize:
     case ZSTD_c_overlapLog:
     case ZSTD_c_rsyncable:
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
-
     case ZSTD_c_enableLongDistanceMatching:
     case ZSTD_c_ldmHashLog:
     case ZSTD_c_ldmMinMatch:
     case ZSTD_c_ldmBucketSizeLog:
-    case ZSTD_c_ldmHashRateLog:
-        if (cctx->cdict) return ERROR(stage_wrong);
-        return ZSTD_CCtxParam_setParameter(&cctx->requestedParams, param, value);
+        break;
 
-    default: return ERROR(parameter_unsupported);
+    default: RETURN_ERROR(parameter_unsupported);
     }
+    return ZSTD_CCtxParams_setParameter(&cctx->requestedParams, param, value);
 }
 
-size_t ZSTD_CCtxParam_setParameter(ZSTD_CCtx_params* CCtxParams,
-                                   ZSTD_cParameter param, int value)
+size_t ZSTD_CCtxParams_setParameter(ZSTD_CCtx_params* CCtxParams,
+                                    ZSTD_cParameter param, int value)
 {
-    DEBUGLOG(4, "ZSTD_CCtxParam_setParameter (%i, %i)", (int)param, value);
+    DEBUGLOG(4, "ZSTD_CCtxParams_setParameter (%i, %i)", (int)param, value);
     switch(param)
     {
     case ZSTD_c_format :
@@ -495,11 +516,9 @@ size_t ZSTD_CCtxParam_setParameter(ZSTD_CCtx_params* CCtxParams,
         return (size_t)CCtxParams->format;
 
     case ZSTD_c_compressionLevel : {
-        int cLevel = value;
-        if (cLevel > ZSTD_maxCLevel()) cLevel = ZSTD_maxCLevel();
-        if (cLevel < ZSTD_minCLevel()) cLevel = ZSTD_minCLevel();
-        if (cLevel) {  /* 0 : does not change current level */
-            CCtxParams->compressionLevel = cLevel;
+        FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(param, &value));
+        if (value) {  /* 0 : does not change current level */
+            CCtxParams->compressionLevel = value;
         }
         if (CCtxParams->compressionLevel >= 0) return CCtxParams->compressionLevel;
         return 0;  /* return type (size_t) cannot represent negative values */
@@ -573,33 +592,55 @@ size_t ZSTD_CCtxParam_setParameter(ZSTD_CCtx_params* CCtxParams,
         return CCtxParams->attachDictPref;
     }
 
+    case ZSTD_c_literalCompressionMode : {
+        const ZSTD_literalCompressionMode_e lcm = (ZSTD_literalCompressionMode_e)value;
+        BOUNDCHECK(ZSTD_c_literalCompressionMode, lcm);
+        CCtxParams->literalCompressionMode = lcm;
+        return CCtxParams->literalCompressionMode;
+    }
+
     case ZSTD_c_nbWorkers :
 #ifndef ZSTD_MULTITHREAD
-        if (value!=0) return ERROR(parameter_unsupported);
+        RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
         return 0;
 #else
-        return ZSTDMT_CCtxParam_setNbWorkers(CCtxParams, value);
+        FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(param, &value));
+        CCtxParams->nbWorkers = value;
+        return CCtxParams->nbWorkers;
 #endif
 
     case ZSTD_c_jobSize :
 #ifndef ZSTD_MULTITHREAD
-        return ERROR(parameter_unsupported);
+        RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
+        return 0;
 #else
-        return ZSTDMT_CCtxParam_setMTCtxParameter(CCtxParams, ZSTDMT_p_jobSize, value);
+        /* Adjust to the minimum non-default value. */
+        if (value != 0 && value < ZSTDMT_JOBSIZE_MIN)
+            value = ZSTDMT_JOBSIZE_MIN;
+        FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(param, &value));
+        assert(value >= 0);
+        CCtxParams->jobSize = value;
+        return CCtxParams->jobSize;
 #endif
 
     case ZSTD_c_overlapLog :
 #ifndef ZSTD_MULTITHREAD
-        return ERROR(parameter_unsupported);
+        RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
+        return 0;
 #else
-        return ZSTDMT_CCtxParam_setMTCtxParameter(CCtxParams, ZSTDMT_p_overlapLog, value);
+        FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(ZSTD_c_overlapLog, &value));
+        CCtxParams->overlapLog = value;
+        return CCtxParams->overlapLog;
 #endif
 
     case ZSTD_c_rsyncable :
 #ifndef ZSTD_MULTITHREAD
-        return ERROR(parameter_unsupported);
+        RETURN_ERROR_IF(value!=0, parameter_unsupported, "not compiled with multithreading");
+        return 0;
 #else
-        return ZSTDMT_CCtxParam_setMTCtxParameter(CCtxParams, ZSTDMT_p_rsyncable, value);
+        FORWARD_IF_ERROR(ZSTD_cParam_clampBounds(ZSTD_c_overlapLog, &value));
+        CCtxParams->rsyncable = value;
+        return CCtxParams->rsyncable;
 #endif
 
     case ZSTD_c_enableLongDistanceMatching :
@@ -625,21 +666,21 @@ size_t ZSTD_CCtxParam_setParameter(ZSTD_CCtx_params* CCtxParams,
         return CCtxParams->ldmParams.bucketSizeLog;
 
     case ZSTD_c_ldmHashRateLog :
-        if (value > ZSTD_WINDOWLOG_MAX - ZSTD_HASHLOG_MIN)
-            return ERROR(parameter_outOfBound);
+        RETURN_ERROR_IF(value > ZSTD_WINDOWLOG_MAX - ZSTD_HASHLOG_MIN,
+                        parameter_outOfBound);
         CCtxParams->ldmParams.hashRateLog = value;
         return CCtxParams->ldmParams.hashRateLog;
 
-    default: return ERROR(parameter_unsupported);
+    default: RETURN_ERROR(parameter_unsupported, "unknown parameter");
     }
 }
 
 size_t ZSTD_CCtx_getParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param, int* value)
 {
-    return ZSTD_CCtxParam_getParameter(&cctx->requestedParams, param, value);
+    return ZSTD_CCtxParams_getParameter(&cctx->requestedParams, param, value);
 }
 
-size_t ZSTD_CCtxParam_getParameter(
+size_t ZSTD_CCtxParams_getParameter(
         ZSTD_CCtx_params* CCtxParams, ZSTD_cParameter param, int* value)
 {
     switch(param)
@@ -686,6 +727,9 @@ size_t ZSTD_CCtxParam_getParameter(
     case ZSTD_c_forceAttachDict :
         *value = CCtxParams->attachDictPref;
         break;
+    case ZSTD_c_literalCompressionMode :
+        *value = CCtxParams->literalCompressionMode;
+        break;
     case ZSTD_c_nbWorkers :
 #ifndef ZSTD_MULTITHREAD
         assert(CCtxParams->nbWorkers == 0);
@@ -694,7 +738,7 @@ size_t ZSTD_CCtxParam_getParameter(
         break;
     case ZSTD_c_jobSize :
 #ifndef ZSTD_MULTITHREAD
-        return ERROR(parameter_unsupported);
+        RETURN_ERROR(parameter_unsupported, "not compiled with multithreading");
 #else
         assert(CCtxParams->jobSize <= INT_MAX);
         *value = (int)CCtxParams->jobSize;
@@ -702,14 +746,14 @@ size_t ZSTD_CCtxParam_getParameter(
 #endif
     case ZSTD_c_overlapLog :
 #ifndef ZSTD_MULTITHREAD
-        return ERROR(parameter_unsupported);
+        RETURN_ERROR(parameter_unsupported, "not compiled with multithreading");
 #else
         *value = CCtxParams->overlapLog;
         break;
 #endif
     case ZSTD_c_rsyncable :
 #ifndef ZSTD_MULTITHREAD
-        return ERROR(parameter_unsupported);
+        RETURN_ERROR(parameter_unsupported, "not compiled with multithreading");
 #else
         *value = CCtxParams->rsyncable;
         break;
@@ -729,7 +773,7 @@ size_t ZSTD_CCtxParam_getParameter(
     case ZSTD_c_ldmHashRateLog :
         *value = CCtxParams->ldmParams.hashRateLog;
         break;
-    default: return ERROR(parameter_unsupported);
+    default: RETURN_ERROR(parameter_unsupported, "unknown parameter");
     }
     return 0;
 }
@@ -745,8 +789,8 @@ size_t ZSTD_CCtx_setParametersUsingCCtxParams(
         ZSTD_CCtx* cctx, const ZSTD_CCtx_params* params)
 {
     DEBUGLOG(4, "ZSTD_CCtx_setParametersUsingCCtxParams");
-    if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
-    if (cctx->cdict) return ERROR(stage_wrong);
+    RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
+    RETURN_ERROR_IF(cctx->cdict, stage_wrong);
 
     cctx->requestedParams = *params;
     return 0;
@@ -755,33 +799,71 @@ size_t ZSTD_CCtx_setParametersUsingCCtxParams(
 ZSTDLIB_API size_t ZSTD_CCtx_setPledgedSrcSize(ZSTD_CCtx* cctx, unsigned long long pledgedSrcSize)
 {
     DEBUGLOG(4, "ZSTD_CCtx_setPledgedSrcSize to %u bytes", (U32)pledgedSrcSize);
-    if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
+    RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
     cctx->pledgedSrcSizePlusOne = pledgedSrcSize+1;
     return 0;
 }
 
+/**
+ * Initializes the local dict using the requested parameters.
+ * NOTE: This does not use the pledged src size, because it may be used for more
+ * than one compression.
+ */
+static size_t ZSTD_initLocalDict(ZSTD_CCtx* cctx)
+{
+    ZSTD_localDict* const dl = &cctx->localDict;
+    ZSTD_compressionParameters const cParams = ZSTD_getCParamsFromCCtxParams(
+            &cctx->requestedParams, 0, dl->dictSize);
+    if (dl->dict == NULL) {
+        /* No local dictionary. */
+        assert(dl->dictBuffer == NULL);
+        assert(dl->cdict == NULL);
+        assert(dl->dictSize == 0);
+        return 0;
+    }
+    if (dl->cdict != NULL) {
+        assert(cctx->cdict == dl->cdict);
+        /* Local dictionary already initialized. */
+        return 0;
+    }
+    assert(dl->dictSize > 0);
+    assert(cctx->cdict == NULL);
+    assert(cctx->prefixDict.dict == NULL);
+
+    dl->cdict = ZSTD_createCDict_advanced(
+            dl->dict,
+            dl->dictSize,
+            ZSTD_dlm_byRef,
+            dl->dictContentType,
+            cParams,
+            cctx->customMem);
+    RETURN_ERROR_IF(!dl->cdict, memory_allocation);
+    cctx->cdict = dl->cdict;
+    return 0;
+}
+
 size_t ZSTD_CCtx_loadDictionary_advanced(
         ZSTD_CCtx* cctx, const void* dict, size_t dictSize,
         ZSTD_dictLoadMethod_e dictLoadMethod, ZSTD_dictContentType_e dictContentType)
 {
-    if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
-    if (cctx->staticSize) return ERROR(memory_allocation);  /* no malloc for static CCtx */
+    RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
+    RETURN_ERROR_IF(cctx->staticSize, memory_allocation,
+                    "no malloc for static CCtx");
     DEBUGLOG(4, "ZSTD_CCtx_loadDictionary_advanced (size: %u)", (U32)dictSize);
-    ZSTD_freeCDict(cctx->cdictLocal);  /* in case one already exists */
-    if (dict==NULL || dictSize==0) {   /* no dictionary mode */
-        cctx->cdictLocal = NULL;
-        cctx->cdict = NULL;
+    ZSTD_clearAllDicts(cctx);  /* in case one already exists */
+    if (dict == NULL || dictSize == 0)  /* no dictionary mode */
+        return 0;
+    if (dictLoadMethod == ZSTD_dlm_byRef) {
+        cctx->localDict.dict = dict;
     } else {
-        ZSTD_compressionParameters const cParams =
-                ZSTD_getCParamsFromCCtxParams(&cctx->requestedParams, cctx->pledgedSrcSizePlusOne-1, dictSize);
-        cctx->cdictLocal = ZSTD_createCDict_advanced(
-                                dict, dictSize,
-                                dictLoadMethod, dictContentType,
-                                cParams, cctx->customMem);
-        cctx->cdict = cctx->cdictLocal;
-        if (cctx->cdictLocal == NULL)
-            return ERROR(memory_allocation);
+        void* dictBuffer = ZSTD_malloc(dictSize, cctx->customMem);
+        RETURN_ERROR_IF(!dictBuffer, memory_allocation);
+        memcpy(dictBuffer, dict, dictSize);
+        cctx->localDict.dictBuffer = dictBuffer;
+        cctx->localDict.dict = dictBuffer;
     }
+    cctx->localDict.dictSize = dictSize;
+    cctx->localDict.dictContentType = dictContentType;
     return 0;
 }
 
@@ -801,9 +883,10 @@ ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary(ZSTD_CCtx* cctx, const void* dict, s
 
 size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict)
 {
-    if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
+    RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
+    /* Free the existing local cdict (if any) to save memory. */
+    ZSTD_clearAllDicts(cctx);
     cctx->cdict = cdict;
-    memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict));  /* exclusive */
     return 0;
 }
 
@@ -815,8 +898,8 @@ size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx, const void* prefix, size_t prefixSiz
 size_t ZSTD_CCtx_refPrefix_advanced(
         ZSTD_CCtx* cctx, const void* prefix, size_t prefixSize, ZSTD_dictContentType_e dictContentType)
 {
-    if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
-    cctx->cdict = NULL;   /* prefix discards any prior cdict */
+    RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
+    ZSTD_clearAllDicts(cctx);
     cctx->prefixDict.dict = prefix;
     cctx->prefixDict.dictSize = prefixSize;
     cctx->prefixDict.dictContentType = dictContentType;
@@ -834,8 +917,8 @@ size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx, ZSTD_ResetDirective reset)
     }
     if ( (reset == ZSTD_reset_parameters)
       || (reset == ZSTD_reset_session_and_parameters) ) {
-        if (cctx->streamStage != zcss_init) return ERROR(stage_wrong);
-        cctx->cdict = NULL;
+        RETURN_ERROR_IF(cctx->streamStage != zcss_init, stage_wrong);
+        ZSTD_clearAllDicts(cctx);
         return ZSTD_CCtxParams_reset(&cctx->requestedParams);
     }
     return 0;
@@ -888,10 +971,11 @@ static U32 ZSTD_cycleLog(U32 hashLog, ZSTD_strategy strat)
 }
 
 /** ZSTD_adjustCParams_internal() :
-    optimize `cPar` for a given input (`srcSize` and `dictSize`).
-    mostly downsizing to reduce memory consumption and initialization latency.
-    Both `srcSize` and `dictSize` are optional (use 0 if unknown).
-    Note : cPar is assumed validated. Use ZSTD_checkCParams() to ensure this condition. */
+ *  optimize `cPar` for a specified input (`srcSize` and `dictSize`).
+ *  mostly downsize to reduce memory consumption and initialization latency.
+ * `srcSize` can be ZSTD_CONTENTSIZE_UNKNOWN when not known.
+ *  note : for the time being, `srcSize==0` means "unknown" too, for compatibility with older convention.
+ *  condition : cPar is presumed validated (can be checked using ZSTD_checkCParams()). */
 static ZSTD_compressionParameters
 ZSTD_adjustCParams_internal(ZSTD_compressionParameters cPar,
                             unsigned long long srcSize,
@@ -901,7 +985,7 @@ ZSTD_adjustCParams_internal(ZSTD_compressionParameters cPar,
     static const U64 maxWindowResize = 1ULL << (ZSTD_WINDOWLOG_MAX-1);
     assert(ZSTD_checkCParams(cPar)==0);
 
-    if (dictSize && (srcSize+1<2) /* srcSize unknown */ )
+    if (dictSize && (srcSize+1<2) /* ZSTD_CONTENTSIZE_UNKNOWN and 0 mean "unknown" */ )
         srcSize = minSrcSize;  /* presumed small when there is a dictionary */
     else if (srcSize == 0)
         srcSize = ZSTD_CONTENTSIZE_UNKNOWN;  /* 0 == unknown : presumed large */
@@ -922,7 +1006,7 @@ ZSTD_adjustCParams_internal(ZSTD_compressionParameters cPar,
     }
 
     if (cPar.windowLog < ZSTD_WINDOWLOG_ABSOLUTEMIN)
-        cPar.windowLog = ZSTD_WINDOWLOG_ABSOLUTEMIN;  /* required for frame header */
+        cPar.windowLog = ZSTD_WINDOWLOG_ABSOLUTEMIN;  /* minimum wlog required for valid frame header */
 
     return cPar;
 }
@@ -932,7 +1016,7 @@ ZSTD_adjustCParams(ZSTD_compressionParameters cPar,
                    unsigned long long srcSize,
                    size_t dictSize)
 {
-    cPar = ZSTD_clampCParams(cPar);
+    cPar = ZSTD_clampCParams(cPar);   /* resulting cPar is necessarily valid (all parameters within range) */
     return ZSTD_adjustCParams_internal(cPar, srcSize, dictSize);
 }
 
@@ -973,8 +1057,7 @@ ZSTD_sizeof_matchState(const ZSTD_compressionParameters* const cParams,
 
 size_t ZSTD_estimateCCtxSize_usingCCtxParams(const ZSTD_CCtx_params* params)
 {
-    /* Estimate CCtx size is supported for single-threaded compression only. */
-    if (params->nbWorkers > 0) { return ERROR(GENERIC); }
+    RETURN_ERROR_IF(params->nbWorkers > 0, GENERIC, "Estimate CCtx size is supported for single-threaded compression only.");
     {   ZSTD_compressionParameters const cParams =
                 ZSTD_getCParamsFromCCtxParams(params, 0, 0);
         size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, (size_t)1 << cParams.windowLog);
@@ -1022,10 +1105,12 @@ size_t ZSTD_estimateCCtxSize(int compressionLevel)
 
 size_t ZSTD_estimateCStreamSize_usingCCtxParams(const ZSTD_CCtx_params* params)
 {
-    if (params->nbWorkers > 0) { return ERROR(GENERIC); }
-    {   size_t const CCtxSize = ZSTD_estimateCCtxSize_usingCCtxParams(params);
-        size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, (size_t)1 << params->cParams.windowLog);
-        size_t const inBuffSize = ((size_t)1 << params->cParams.windowLog) + blockSize;
+    RETURN_ERROR_IF(params->nbWorkers > 0, GENERIC, "Estimate CCtx size is supported for single-threaded compression only.");
+    {   ZSTD_compressionParameters const cParams =
+                ZSTD_getCParamsFromCCtxParams(params, 0, 0);
+        size_t const CCtxSize = ZSTD_estimateCCtxSize_usingCCtxParams(params);
+        size_t const blockSize = MIN(ZSTD_BLOCKSIZE_MAX, (size_t)1 << cParams.windowLog);
+        size_t const inBuffSize = ((size_t)1 << cParams.windowLog) + blockSize;
         size_t const outBuffSize = ZSTD_compressBound(blockSize) + 1;
         size_t const streamingSize = inBuffSize + outBuffSize;
 
@@ -1367,13 +1452,13 @@ static size_t ZSTD_resetCCtx_internal(ZSTD_CCtx* zc,
                 DEBUGLOG(4, "Need to resize workSpaceSize from %zuKB to %zuKB",
                             zc->workSpaceSize >> 10,
                             neededSpace >> 10);
-                /* static cctx : no resize, error out */
-                if (zc->staticSize) return ERROR(memory_allocation);
+
+                RETURN_ERROR_IF(zc->staticSize, memory_allocation, "static cctx : no resize");
 
                 zc->workSpaceSize = 0;
                 ZSTD_free(zc->workSpace, zc->customMem);
                 zc->workSpace = ZSTD_malloc(neededSpace, zc->customMem);
-                if (zc->workSpace == NULL) return ERROR(memory_allocation);
+                RETURN_ERROR_IF(zc->workSpace == NULL, memory_allocation);
                 zc->workSpaceSize = neededSpace;
                 zc->workSpaceOversizedDuration = 0;
 
@@ -1644,7 +1729,7 @@ static size_t ZSTD_copyCCtx_internal(ZSTD_CCtx* dstCCtx,
                             ZSTD_buffered_policy_e zbuff)
 {
     DEBUGLOG(5, "ZSTD_copyCCtx_internal");
-    if (srcCCtx->stage!=ZSTDcs_init) return ERROR(stage_wrong);
+    RETURN_ERROR_IF(srcCCtx->stage!=ZSTDcs_init, stage_wrong);
 
     memcpy(&dstCCtx->customMem, &srcCCtx->customMem, sizeof(ZSTD_customMem));
     {   ZSTD_CCtx_params params = dstCCtx->requestedParams;
@@ -1777,7 +1862,8 @@ static void ZSTD_reduceIndex (ZSTD_CCtx* zc, const U32 reducerValue)
 static size_t ZSTD_noCompressBlock (void* dst, size_t dstCapacity, const void* src, size_t srcSize, U32 lastBlock)
 {
     U32 const cBlockHeader24 = lastBlock + (((U32)bt_raw)<<1) + (U32)(srcSize << 3);
-    if (srcSize + ZSTD_blockHeaderSize > dstCapacity) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF(srcSize + ZSTD_blockHeaderSize > dstCapacity,
+                    dstSize_tooSmall);
     MEM_writeLE24(dst, cBlockHeader24);
     memcpy((BYTE*)dst + ZSTD_blockHeaderSize, src, srcSize);
     return ZSTD_blockHeaderSize + srcSize;
@@ -1788,7 +1874,7 @@ static size_t ZSTD_noCompressLiterals (void* dst, size_t dstCapacity, const void
     BYTE* const ostart = (BYTE* const)dst;
     U32   const flSize = 1 + (srcSize>31) + (srcSize>4095);
 
-    if (srcSize + flSize > dstCapacity) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF(srcSize + flSize > dstCapacity, dstSize_tooSmall);
 
     switch(flSize)
     {
@@ -1878,7 +1964,7 @@ static size_t ZSTD_compressLiterals (ZSTD_hufCTables_t const* prevHuf,
         if (srcSize <= minLitSize) return ZSTD_noCompressLiterals(dst, dstCapacity, src, srcSize);
     }
 
-    if (dstCapacity < lhSize+1) return ERROR(dstSize_tooSmall);   /* not enough space for compression */
+    RETURN_ERROR_IF(dstCapacity < lhSize+1, dstSize_tooSmall, "not enough space for compression");
     {   HUF_repeat repeat = prevHuf->repeatMode;
         int const preferRepeat = strategy < ZSTD_lazy ? srcSize <= 1024 : 0;
         if (repeat == HUF_repeat_valid && lhSize == 3) singleStream = 1;
@@ -1960,7 +2046,7 @@ void ZSTD_seqToCodes(const seqStore_t* seqStorePtr)
  * If x == 0: Return 0
  * Else: Return floor(-log2(x / 256) * 256)
  */
-static unsigned const kInverseProbabiltyLog256[256] = {
+static unsigned const kInverseProbabilityLog256[256] = {
     0,    2048, 1792, 1642, 1536, 1453, 1386, 1329, 1280, 1236, 1197, 1162,
     1130, 1100, 1073, 1047, 1024, 1001, 980,  960,  941,  923,  906,  889,
     874,  859,  844,  830,  817,  804,  791,  779,  768,  756,  745,  734,
@@ -1999,7 +2085,7 @@ static size_t ZSTD_entropyCost(unsigned const* count, unsigned const max, size_t
         if (count[s] != 0 && norm == 0)
             norm = 1;
         assert(count[s] < total);
-        cost += count[s] * kInverseProbabiltyLog256[norm];
+        cost += count[s] * kInverseProbabilityLog256[norm];
     }
     return cost >> 8;
 }
@@ -2022,7 +2108,7 @@ static size_t ZSTD_crossEntropyCost(short const* norm, unsigned accuracyLog,
         unsigned const norm256 = normAcc << shift;
         assert(norm256 > 0);
         assert(norm256 < 256);
-        cost += count[s] * kInverseProbabiltyLog256[norm256];
+        cost += count[s] * kInverseProbabilityLog256[norm256];
     }
     return cost >> 8;
 }
@@ -2050,21 +2136,17 @@ static size_t ZSTD_fseBitCost(
     unsigned s;
     FSE_CState_t cstate;
     FSE_initCState(&cstate, ctable);
-    if (ZSTD_getFSEMaxSymbolValue(ctable) < max) {
-        DEBUGLOG(5, "Repeat FSE_CTable has maxSymbolValue %u < %u",
+    RETURN_ERROR_IF(ZSTD_getFSEMaxSymbolValue(ctable) < max, GENERIC,
+                    "Repeat FSE_CTable has maxSymbolValue %u < %u",
                     ZSTD_getFSEMaxSymbolValue(ctable), max);
-        return ERROR(GENERIC);
-    }
     for (s = 0; s <= max; ++s) {
         unsigned const tableLog = cstate.stateLog;
         unsigned const badCost = (tableLog + 1) << kAccuracyLog;
         unsigned const bitCost = FSE_bitCost(cstate.symbolTT, tableLog, s, kAccuracyLog);
         if (count[s] == 0)
             continue;
-        if (bitCost >= badCost) {
-            DEBUGLOG(5, "Repeat FSE_CTable has Prob[%u] == 0", s);
-            return ERROR(GENERIC);
-        }
+        RETURN_ERROR_IF(bitCost >= badCost, GENERIC,
+                        "Repeat FSE_CTable has Prob[%u] == 0", s);
         cost += count[s] * bitCost;
     }
     return cost >> kAccuracyLog;
@@ -2080,7 +2162,7 @@ static size_t ZSTD_NCountCost(unsigned const* count, unsigned const max,
     BYTE wksp[FSE_NCOUNTBOUND];
     S16 norm[MaxSeq + 1];
     const U32 tableLog = FSE_optimalTableLog(FSELog, nbSeq, max);
-    CHECK_F(FSE_normalizeCount(norm, tableLog, count, nbSeq, max));
+    FORWARD_IF_ERROR(FSE_normalizeCount(norm, tableLog, count, nbSeq, max));
     return FSE_writeNCount(wksp, sizeof(wksp), norm, max, tableLog);
 }
 
@@ -2186,15 +2268,15 @@ ZSTD_buildCTable(void* dst, size_t dstCapacity,
 
     switch (type) {
     case set_rle:
-        CHECK_F(FSE_buildCTable_rle(nextCTable, (BYTE)max));
-        if (dstCapacity==0) return ERROR(dstSize_tooSmall);
+        FORWARD_IF_ERROR(FSE_buildCTable_rle(nextCTable, (BYTE)max));
+        RETURN_ERROR_IF(dstCapacity==0, dstSize_tooSmall);
         *op = codeTable[0];
         return 1;
     case set_repeat:
         memcpy(nextCTable, prevCTable, prevCTableSize);
         return 0;
     case set_basic:
-        CHECK_F(FSE_buildCTable_wksp(nextCTable, defaultNorm, defaultMax, defaultNormLog, workspace, workspaceSize));  /* note : could be pre-calculated */
+        FORWARD_IF_ERROR(FSE_buildCTable_wksp(nextCTable, defaultNorm, defaultMax, defaultNormLog, workspace, workspaceSize));  /* note : could be pre-calculated */
         return 0;
     case set_compressed: {
         S16 norm[MaxSeq + 1];
@@ -2205,14 +2287,14 @@ ZSTD_buildCTable(void* dst, size_t dstCapacity,
             nbSeq_1--;
         }
         assert(nbSeq_1 > 1);
-        CHECK_F(FSE_normalizeCount(norm, tableLog, count, nbSeq_1, max));
+        FORWARD_IF_ERROR(FSE_normalizeCount(norm, tableLog, count, nbSeq_1, max));
         {   size_t const NCountSize = FSE_writeNCount(op, oend - op, norm, max, tableLog);   /* overflow protected */
-            if (FSE_isError(NCountSize)) return NCountSize;
-            CHECK_F(FSE_buildCTable_wksp(nextCTable, norm, max, tableLog, workspace, workspaceSize));
+            FORWARD_IF_ERROR(NCountSize);
+            FORWARD_IF_ERROR(FSE_buildCTable_wksp(nextCTable, norm, max, tableLog, workspace, workspaceSize));
             return NCountSize;
         }
     }
-    default: return assert(0), ERROR(GENERIC);
+    default: assert(0); RETURN_ERROR(GENERIC);
     }
 }
 
@@ -2229,7 +2311,9 @@ ZSTD_encodeSequences_body(
     FSE_CState_t  stateOffsetBits;
     FSE_CState_t  stateLitLength;
 
-    CHECK_E(BIT_initCStream(&blockStream, dst, dstCapacity), dstSize_tooSmall); /* not enough space remaining */
+    RETURN_ERROR_IF(
+        ERR_isError(BIT_initCStream(&blockStream, dst, dstCapacity)),
+        dstSize_tooSmall, "not enough space remaining");
     DEBUGLOG(6, "available space for bitstream : %i  (dstCapacity=%u)",
                 (int)(blockStream.endPtr - blockStream.startPtr),
                 (unsigned)dstCapacity);
@@ -2303,7 +2387,7 @@ ZSTD_encodeSequences_body(
     FSE_flushCState(&blockStream, &stateLitLength);
 
     {   size_t const streamSize = BIT_closeCStream(&blockStream);
-        if (streamSize==0) return ERROR(dstSize_tooSmall);   /* not enough space */
+        RETURN_ERROR_IF(streamSize==0, dstSize_tooSmall, "not enough space");
         return streamSize;
     }
 }
@@ -2368,6 +2452,21 @@ static size_t ZSTD_encodeSequences(
                                         sequences, nbSeq, longOffsets);
 }
 
+static int ZSTD_disableLiteralsCompression(const ZSTD_CCtx_params* cctxParams)
+{
+    switch (cctxParams->literalCompressionMode) {
+    case ZSTD_lcm_huffman:
+        return 0;
+    case ZSTD_lcm_uncompressed:
+        return 1;
+    default:
+        assert(0 /* impossible: pre-validated */);
+        /* fall-through */
+    case ZSTD_lcm_auto:
+        return (cctxParams->cParams.strategy == ZSTD_fast) && (cctxParams->cParams.targetLength > 0);
+    }
+}
+
 /* ZSTD_compressSequences_internal():
  * actually compresses both literals and sequences */
 MEM_STATIC size_t
@@ -2403,22 +2502,22 @@ ZSTD_compressSequences_internal(seqStore_t* seqStorePtr,
     /* Compress literals */
     {   const BYTE* const literals = seqStorePtr->litStart;
         size_t const litSize = seqStorePtr->lit - literals;
-        int const disableLiteralCompression = (cctxParams->cParams.strategy == ZSTD_fast) && (cctxParams->cParams.targetLength > 0);
         size_t const cSize = ZSTD_compressLiterals(
                                     &prevEntropy->huf, &nextEntropy->huf,
-                                    cctxParams->cParams.strategy, disableLiteralCompression,
+                                    cctxParams->cParams.strategy,
+                                    ZSTD_disableLiteralsCompression(cctxParams),
                                     op, dstCapacity,
                                     literals, litSize,
                                     workspace, wkspSize,
                                     bmi2);
-        if (ZSTD_isError(cSize))
-          return cSize;
+        FORWARD_IF_ERROR(cSize);
         assert(cSize <= dstCapacity);
         op += cSize;
     }
 
     /* Sequences Header */
-    if ((oend-op) < 3 /*max nbSeq Size*/ + 1 /*seqHead*/) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF((oend-op) < 3 /*max nbSeq Size*/ + 1 /*seqHead*/,
+                    dstSize_tooSmall);
     if (nbSeq < 0x7F)
         *op++ = (BYTE)nbSeq;
     else if (nbSeq < LONGNBSEQ)
@@ -2452,7 +2551,7 @@ ZSTD_compressSequences_internal(seqStore_t* seqStorePtr,
                                                     count, max, llCodeTable, nbSeq, LL_defaultNorm, LL_defaultNormLog, MaxLL,
                                                     prevEntropy->fse.litlengthCTable, sizeof(prevEntropy->fse.litlengthCTable),
                                                     workspace, wkspSize);
-            if (ZSTD_isError(countSize)) return countSize;
+            FORWARD_IF_ERROR(countSize);
             if (LLtype == set_compressed)
                 lastNCount = op;
             op += countSize;
@@ -2474,7 +2573,7 @@ ZSTD_compressSequences_internal(seqStore_t* seqStorePtr,
                                                     count, max, ofCodeTable, nbSeq, OF_defaultNorm, OF_defaultNormLog, DefaultMaxOff,
                                                     prevEntropy->fse.offcodeCTable, sizeof(prevEntropy->fse.offcodeCTable),
                                                     workspace, wkspSize);
-            if (ZSTD_isError(countSize)) return countSize;
+            FORWARD_IF_ERROR(countSize);
             if (Offtype == set_compressed)
                 lastNCount = op;
             op += countSize;
@@ -2494,7 +2593,7 @@ ZSTD_compressSequences_internal(seqStore_t* seqStorePtr,
                                                     count, max, mlCodeTable, nbSeq, ML_defaultNorm, ML_defaultNormLog, MaxML,
                                                     prevEntropy->fse.matchlengthCTable, sizeof(prevEntropy->fse.matchlengthCTable),
                                                     workspace, wkspSize);
-            if (ZSTD_isError(countSize)) return countSize;
+            FORWARD_IF_ERROR(countSize);
             if (MLtype == set_compressed)
                 lastNCount = op;
             op += countSize;
@@ -2509,10 +2608,10 @@ ZSTD_compressSequences_internal(seqStore_t* seqStorePtr,
                                         CTable_LitLength, llCodeTable,
                                         sequences, nbSeq,
                                         longOffsets, bmi2);
-        if (ZSTD_isError(bitstreamSize)) return bitstreamSize;
+        FORWARD_IF_ERROR(bitstreamSize);
         op += bitstreamSize;
         /* zstd versions <= 1.3.4 mistakenly report corruption when
-         * FSE_readNCount() recieves a buffer < 4 bytes.
+         * FSE_readNCount() receives a buffer < 4 bytes.
          * Fixed by https://github.com/facebook/zstd/pull/1146.
          * This can happen when the last set_compressed table present is 2
          * bytes and the bitstream is only one byte.
@@ -2552,7 +2651,7 @@ ZSTD_compressSequences(seqStore_t* seqStorePtr,
      */
     if ((cSize == ERROR(dstSize_tooSmall)) & (srcSize <= dstCapacity))
         return 0;  /* block not compressed */
-    if (ZSTD_isError(cSize)) return cSize;
+    FORWARD_IF_ERROR(cSize);
 
     /* Check compressibility */
     {   size_t const maxCSize = srcSize - ZSTD_minGain(srcSize, cctxParams->cParams.strategy);
@@ -2641,7 +2740,10 @@ static size_t ZSTD_compressBlock_internal(ZSTD_CCtx* zc,
         goto out;  /* don't even attempt compression below a certain srcSize */
     }
     ZSTD_resetSeqStore(&(zc->seqStore));
-    ms->opt.symbolCosts = &zc->blockState.prevCBlock->entropy;   /* required for optimal parser to read stats from dictionary */
+    /* required for optimal parser to read stats from dictionary */
+    ms->opt.symbolCosts = &zc->blockState.prevCBlock->entropy;
+    /* tell the optimal parser how we expect to compress literals */
+    ms->opt.literalCompressionMode = zc->appliedParams.literalCompressionMode;
 
     /* a gap between an attached dict and the current window is not safe,
      * they must remain adjacent,
@@ -2679,7 +2781,7 @@ static size_t ZSTD_compressBlock_internal(ZSTD_CCtx* zc,
             ldmSeqStore.seq = zc->ldmSequences;
             ldmSeqStore.capacity = zc->maxNbLdmSequences;
             /* Updates ldmSeqStore.size */
-            CHECK_F(ZSTD_ldm_generateSequences(&zc->ldmState, &ldmSeqStore,
+            FORWARD_IF_ERROR(ZSTD_ldm_generateSequences(&zc->ldmState, &ldmSeqStore,
                                                &zc->appliedParams.ldmParams,
                                                src, srcSize));
             /* Updates ldmSeqStore.pos */
@@ -2752,8 +2854,9 @@ static size_t ZSTD_compress_frameChunk (ZSTD_CCtx* cctx,
         ZSTD_matchState_t* const ms = &cctx->blockState.matchState;
         U32 const lastBlock = lastFrameChunk & (blockSize >= remaining);
 
-        if (dstCapacity < ZSTD_blockHeaderSize + MIN_CBLOCK_SIZE)
-            return ERROR(dstSize_tooSmall);   /* not enough space to store compressed block */
+        RETURN_ERROR_IF(dstCapacity < ZSTD_blockHeaderSize + MIN_CBLOCK_SIZE,
+                        dstSize_tooSmall,
+                        "not enough space to store compressed block");
         if (remaining < blockSize) blockSize = remaining;
 
         if (ZSTD_window_needOverflowCorrection(ms->window, ip + blockSize)) {
@@ -2774,11 +2877,11 @@ static size_t ZSTD_compress_frameChunk (ZSTD_CCtx* cctx,
         {   size_t cSize = ZSTD_compressBlock_internal(cctx,
                                 op+ZSTD_blockHeaderSize, dstCapacity-ZSTD_blockHeaderSize,
                                 ip, blockSize);
-            if (ZSTD_isError(cSize)) return cSize;
+            FORWARD_IF_ERROR(cSize);
 
             if (cSize == 0) {  /* block is not compressible */
                 cSize = ZSTD_noCompressBlock(op, dstCapacity, ip, blockSize, lastBlock);
-                if (ZSTD_isError(cSize)) return cSize;
+                FORWARD_IF_ERROR(cSize);
             } else {
                 U32 const cBlockHeader24 = lastBlock + (((U32)bt_compressed)<<1) + (U32)(cSize << 3);
                 MEM_writeLE24(op, cBlockHeader24);
@@ -2811,11 +2914,11 @@ static size_t ZSTD_writeFrameHeader(void* dst, size_t dstCapacity,
     BYTE  const windowLogByte = (BYTE)((params.cParams.windowLog - ZSTD_WINDOWLOG_ABSOLUTEMIN) << 3);
     U32   const fcsCode = params.fParams.contentSizeFlag ?
                      (pledgedSrcSize>=256) + (pledgedSrcSize>=65536+256) + (pledgedSrcSize>=0xFFFFFFFFU) : 0;  /* 0-3 */
-    BYTE  const frameHeaderDecriptionByte = (BYTE)(dictIDSizeCode + (checksumFlag<<2) + (singleSegment<<5) + (fcsCode<<6) );
+    BYTE  const frameHeaderDescriptionByte = (BYTE)(dictIDSizeCode + (checksumFlag<<2) + (singleSegment<<5) + (fcsCode<<6) );
     size_t pos=0;
 
     assert(!(params.fParams.contentSizeFlag && pledgedSrcSize == ZSTD_CONTENTSIZE_UNKNOWN));
-    if (dstCapacity < ZSTD_FRAMEHEADERSIZE_MAX) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF(dstCapacity < ZSTD_FRAMEHEADERSIZE_MAX, dstSize_tooSmall);
     DEBUGLOG(4, "ZSTD_writeFrameHeader : dictIDFlag : %u ; dictID : %u ; dictIDSizeCode : %u",
                 !params.fParams.noDictIDFlag, (unsigned)dictID, (unsigned)dictIDSizeCode);
 
@@ -2823,7 +2926,7 @@ static size_t ZSTD_writeFrameHeader(void* dst, size_t dstCapacity,
         MEM_writeLE32(dst, ZSTD_MAGICNUMBER);
         pos = 4;
     }
-    op[pos++] = frameHeaderDecriptionByte;
+    op[pos++] = frameHeaderDescriptionByte;
     if (!singleSegment) op[pos++] = windowLogByte;
     switch(dictIDSizeCode)
     {
@@ -2847,11 +2950,11 @@ static size_t ZSTD_writeFrameHeader(void* dst, size_t dstCapacity,
 /* ZSTD_writeLastEmptyBlock() :
  * output an empty Block with end-of-frame mark to complete a frame
  * @return : size of data written into `dst` (== ZSTD_blockHeaderSize (defined in zstd_internal.h))
- *           or an error code if `dstCapcity` is too small (<ZSTD_blockHeaderSize)
+ *           or an error code if `dstCapacity` is too small (<ZSTD_blockHeaderSize)
  */
 size_t ZSTD_writeLastEmptyBlock(void* dst, size_t dstCapacity)
 {
-    if (dstCapacity < ZSTD_blockHeaderSize) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF(dstCapacity < ZSTD_blockHeaderSize, dstSize_tooSmall);
     {   U32 const cBlockHeader24 = 1 /*lastBlock*/ + (((U32)bt_raw)<<1);  /* 0 size */
         MEM_writeLE24(dst, cBlockHeader24);
         return ZSTD_blockHeaderSize;
@@ -2860,10 +2963,9 @@ size_t ZSTD_writeLastEmptyBlock(void* dst, size_t dstCapacity)
 
 size_t ZSTD_referenceExternalSequences(ZSTD_CCtx* cctx, rawSeq* seq, size_t nbSeq)
 {
-    if (cctx->stage != ZSTDcs_init)
-        return ERROR(stage_wrong);
-    if (cctx->appliedParams.ldmParams.enableLdm)
-        return ERROR(parameter_unsupported);
+    RETURN_ERROR_IF(cctx->stage != ZSTDcs_init, stage_wrong);
+    RETURN_ERROR_IF(cctx->appliedParams.ldmParams.enableLdm,
+                    parameter_unsupported);
     cctx->externSeqStore.seq = seq;
     cctx->externSeqStore.size = nbSeq;
     cctx->externSeqStore.capacity = nbSeq;
@@ -2882,12 +2984,13 @@ static size_t ZSTD_compressContinue_internal (ZSTD_CCtx* cctx,
 
     DEBUGLOG(5, "ZSTD_compressContinue_internal, stage: %u, srcSize: %u",
                 cctx->stage, (unsigned)srcSize);
-    if (cctx->stage==ZSTDcs_created) return ERROR(stage_wrong);   /* missing init (ZSTD_compressBegin) */
+    RETURN_ERROR_IF(cctx->stage==ZSTDcs_created, stage_wrong,
+                    "missing init (ZSTD_compressBegin)");
 
     if (frame && (cctx->stage==ZSTDcs_init)) {
         fhSize = ZSTD_writeFrameHeader(dst, dstCapacity, cctx->appliedParams,
                                        cctx->pledgedSrcSizePlusOne-1, cctx->dictID);
-        if (ZSTD_isError(fhSize)) return fhSize;
+        FORWARD_IF_ERROR(fhSize);
         dstCapacity -= fhSize;
         dst = (char*)dst + fhSize;
         cctx->stage = ZSTDcs_ongoing;
@@ -2922,17 +3025,18 @@ static size_t ZSTD_compressContinue_internal (ZSTD_CCtx* cctx,
     {   size_t const cSize = frame ?
                              ZSTD_compress_frameChunk (cctx, dst, dstCapacity, src, srcSize, lastFrameChunk) :
                              ZSTD_compressBlock_internal (cctx, dst, dstCapacity, src, srcSize);
-        if (ZSTD_isError(cSize)) return cSize;
+        FORWARD_IF_ERROR(cSize);
         cctx->consumedSrcSize += srcSize;
         cctx->producedCSize += (cSize + fhSize);
         assert(!(cctx->appliedParams.fParams.contentSizeFlag && cctx->pledgedSrcSizePlusOne == 0));
         if (cctx->pledgedSrcSizePlusOne != 0) {  /* control src size */
             ZSTD_STATIC_ASSERT(ZSTD_CONTENTSIZE_UNKNOWN == (unsigned long long)-1);
-            if (cctx->consumedSrcSize+1 > cctx->pledgedSrcSizePlusOne) {
-                DEBUGLOG(4, "error : pledgedSrcSize = %u, while realSrcSize >= %u",
-                    (unsigned)cctx->pledgedSrcSizePlusOne-1, (unsigned)cctx->consumedSrcSize);
-                return ERROR(srcSize_wrong);
-            }
+            RETURN_ERROR_IF(
+                cctx->consumedSrcSize+1 > cctx->pledgedSrcSizePlusOne,
+                srcSize_wrong,
+                "error : pledgedSrcSize = %u, while realSrcSize >= %u",
+                (unsigned)cctx->pledgedSrcSizePlusOne-1,
+                (unsigned)cctx->consumedSrcSize);
         }
         return cSize + fhSize;
     }
@@ -2957,7 +3061,7 @@ size_t ZSTD_getBlockSize(const ZSTD_CCtx* cctx)
 size_t ZSTD_compressBlock(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize)
 {
     size_t const blockSizeMax = ZSTD_getBlockSize(cctx);
-    if (srcSize > blockSizeMax) return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(srcSize > blockSizeMax, srcSize_wrong);
 
     return ZSTD_compressContinue_internal(cctx, dst, dstCapacity, src, srcSize, 0 /* frame mode */, 0 /* last chunk */);
 }
@@ -3020,9 +3124,9 @@ static size_t ZSTD_loadDictionaryContent(ZSTD_matchState_t* ms,
    NOTE: This behavior is not standard and could be improved in the future. */
 static size_t ZSTD_checkDictNCount(short* normalizedCounter, unsigned dictMaxSymbolValue, unsigned maxSymbolValue) {
     U32 s;
-    if (dictMaxSymbolValue < maxSymbolValue) return ERROR(dictionary_corrupted);
+    RETURN_ERROR_IF(dictMaxSymbolValue < maxSymbolValue, dictionary_corrupted);
     for (s = 0; s <= maxSymbolValue; ++s) {
-        if (normalizedCounter[s] == 0) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(normalizedCounter[s] == 0, dictionary_corrupted);
     }
     return 0;
 }
@@ -3060,53 +3164,56 @@ static size_t ZSTD_loadZstdDictionary(ZSTD_compressedBlockState_t* bs,
 
     {   unsigned maxSymbolValue = 255;
         size_t const hufHeaderSize = HUF_readCTable((HUF_CElt*)bs->entropy.huf.CTable, &maxSymbolValue, dictPtr, dictEnd-dictPtr);
-        if (HUF_isError(hufHeaderSize)) return ERROR(dictionary_corrupted);
-        if (maxSymbolValue < 255) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(HUF_isError(hufHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(maxSymbolValue < 255, dictionary_corrupted);
         dictPtr += hufHeaderSize;
     }
 
     {   unsigned offcodeLog;
         size_t const offcodeHeaderSize = FSE_readNCount(offcodeNCount, &offcodeMaxValue, &offcodeLog, dictPtr, dictEnd-dictPtr);
-        if (FSE_isError(offcodeHeaderSize)) return ERROR(dictionary_corrupted);
-        if (offcodeLog > OffFSELog) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(offcodeHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(offcodeLog > OffFSELog, dictionary_corrupted);
         /* Defer checking offcodeMaxValue because we need to know the size of the dictionary content */
         /* fill all offset symbols to avoid garbage at end of table */
-        CHECK_E( FSE_buildCTable_wksp(bs->entropy.fse.offcodeCTable,
-                                    offcodeNCount, MaxOff, offcodeLog,
-                                    workspace, HUF_WORKSPACE_SIZE),
-                 dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(FSE_buildCTable_wksp(
+                bs->entropy.fse.offcodeCTable,
+                offcodeNCount, MaxOff, offcodeLog,
+                workspace, HUF_WORKSPACE_SIZE)),
+            dictionary_corrupted);
         dictPtr += offcodeHeaderSize;
     }
 
     {   short matchlengthNCount[MaxML+1];
         unsigned matchlengthMaxValue = MaxML, matchlengthLog;
         size_t const matchlengthHeaderSize = FSE_readNCount(matchlengthNCount, &matchlengthMaxValue, &matchlengthLog, dictPtr, dictEnd-dictPtr);
-        if (FSE_isError(matchlengthHeaderSize)) return ERROR(dictionary_corrupted);
-        if (matchlengthLog > MLFSELog) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(matchlengthHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(matchlengthLog > MLFSELog, dictionary_corrupted);
         /* Every match length code must have non-zero probability */
-        CHECK_F( ZSTD_checkDictNCount(matchlengthNCount, matchlengthMaxValue, MaxML));
-        CHECK_E( FSE_buildCTable_wksp(bs->entropy.fse.matchlengthCTable,
-                                    matchlengthNCount, matchlengthMaxValue, matchlengthLog,
-                                    workspace, HUF_WORKSPACE_SIZE),
-                 dictionary_corrupted);
+        FORWARD_IF_ERROR( ZSTD_checkDictNCount(matchlengthNCount, matchlengthMaxValue, MaxML));
+        RETURN_ERROR_IF(FSE_isError(FSE_buildCTable_wksp(
+                bs->entropy.fse.matchlengthCTable,
+                matchlengthNCount, matchlengthMaxValue, matchlengthLog,
+                workspace, HUF_WORKSPACE_SIZE)),
+            dictionary_corrupted);
         dictPtr += matchlengthHeaderSize;
     }
 
     {   short litlengthNCount[MaxLL+1];
         unsigned litlengthMaxValue = MaxLL, litlengthLog;
         size_t const litlengthHeaderSize = FSE_readNCount(litlengthNCount, &litlengthMaxValue, &litlengthLog, dictPtr, dictEnd-dictPtr);
-        if (FSE_isError(litlengthHeaderSize)) return ERROR(dictionary_corrupted);
-        if (litlengthLog > LLFSELog) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(litlengthHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(litlengthLog > LLFSELog, dictionary_corrupted);
         /* Every literal length code must have non-zero probability */
-        CHECK_F( ZSTD_checkDictNCount(litlengthNCount, litlengthMaxValue, MaxLL));
-        CHECK_E( FSE_buildCTable_wksp(bs->entropy.fse.litlengthCTable,
-                                    litlengthNCount, litlengthMaxValue, litlengthLog,
-                                    workspace, HUF_WORKSPACE_SIZE),
-                 dictionary_corrupted);
+        FORWARD_IF_ERROR( ZSTD_checkDictNCount(litlengthNCount, litlengthMaxValue, MaxLL));
+        RETURN_ERROR_IF(FSE_isError(FSE_buildCTable_wksp(
+                bs->entropy.fse.litlengthCTable,
+                litlengthNCount, litlengthMaxValue, litlengthLog,
+                workspace, HUF_WORKSPACE_SIZE)),
+            dictionary_corrupted);
         dictPtr += litlengthHeaderSize;
     }
 
-    if (dictPtr+12 > dictEnd) return ERROR(dictionary_corrupted);
+    RETURN_ERROR_IF(dictPtr+12 > dictEnd, dictionary_corrupted);
     bs->rep[0] = MEM_readLE32(dictPtr+0);
     bs->rep[1] = MEM_readLE32(dictPtr+4);
     bs->rep[2] = MEM_readLE32(dictPtr+8);
@@ -3119,19 +3226,19 @@ static size_t ZSTD_loadZstdDictionary(ZSTD_compressedBlockState_t* bs,
             offcodeMax = ZSTD_highbit32(maxOffset); /* Calculate minimum offset code required to represent maxOffset */
         }
         /* All offset values <= dictContentSize + 128 KB must be representable */
-        CHECK_F (ZSTD_checkDictNCount(offcodeNCount, offcodeMaxValue, MIN(offcodeMax, MaxOff)));
+        FORWARD_IF_ERROR(ZSTD_checkDictNCount(offcodeNCount, offcodeMaxValue, MIN(offcodeMax, MaxOff)));
         /* All repCodes must be <= dictContentSize and != 0*/
         {   U32 u;
             for (u=0; u<3; u++) {
-                if (bs->rep[u] == 0) return ERROR(dictionary_corrupted);
-                if (bs->rep[u] > dictContentSize) return ERROR(dictionary_corrupted);
+                RETURN_ERROR_IF(bs->rep[u] == 0, dictionary_corrupted);
+                RETURN_ERROR_IF(bs->rep[u] > dictContentSize, dictionary_corrupted);
         }   }
 
         bs->entropy.huf.repeatMode = HUF_repeat_valid;
         bs->entropy.fse.offcode_repeatMode = FSE_repeat_valid;
         bs->entropy.fse.matchlength_repeatMode = FSE_repeat_valid;
         bs->entropy.fse.litlength_repeatMode = FSE_repeat_valid;
-        CHECK_F(ZSTD_loadDictionaryContent(ms, params, dictPtr, dictContentSize, dtlm));
+        FORWARD_IF_ERROR(ZSTD_loadDictionaryContent(ms, params, dictPtr, dictContentSize, dtlm));
         return dictID;
     }
 }
@@ -3161,8 +3268,7 @@ ZSTD_compress_insertDictionary(ZSTD_compressedBlockState_t* bs,
             DEBUGLOG(4, "raw content dictionary detected");
             return ZSTD_loadDictionaryContent(ms, params, dict, dictSize, dtlm);
         }
-        if (dictContentType == ZSTD_dct_fullDict)
-            return ERROR(dictionary_wrong);
+        RETURN_ERROR_IF(dictContentType == ZSTD_dct_fullDict, dictionary_wrong);
         assert(0);   /* impossible */
     }
 
@@ -3189,13 +3295,13 @@ static size_t ZSTD_compressBegin_internal(ZSTD_CCtx* cctx,
         return ZSTD_resetCCtx_usingCDict(cctx, cdict, params, pledgedSrcSize, zbuff);
     }
 
-    CHECK_F( ZSTD_resetCCtx_internal(cctx, params, pledgedSrcSize,
+    FORWARD_IF_ERROR( ZSTD_resetCCtx_internal(cctx, params, pledgedSrcSize,
                                      ZSTDcrp_continue, zbuff) );
     {
         size_t const dictID = ZSTD_compress_insertDictionary(
                 cctx->blockState.prevCBlock, &cctx->blockState.matchState,
                 &params, dict, dictSize, dictContentType, dtlm, cctx->entropyWorkspace);
-        if (ZSTD_isError(dictID)) return dictID;
+        FORWARD_IF_ERROR(dictID);
         assert(dictID <= (size_t)(U32)-1);
         cctx->dictID = (U32)dictID;
     }
@@ -3212,7 +3318,7 @@ size_t ZSTD_compressBegin_advanced_internal(ZSTD_CCtx* cctx,
 {
     DEBUGLOG(4, "ZSTD_compressBegin_advanced_internal: wlog=%u", params.cParams.windowLog);
     /* compression parameters verification and optimization */
-    CHECK_F( ZSTD_checkCParams(params.cParams) );
+    FORWARD_IF_ERROR( ZSTD_checkCParams(params.cParams) );
     return ZSTD_compressBegin_internal(cctx,
                                        dict, dictSize, dictContentType, dtlm,
                                        cdict,
@@ -3260,12 +3366,12 @@ static size_t ZSTD_writeEpilogue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity)
     size_t fhSize = 0;
 
     DEBUGLOG(4, "ZSTD_writeEpilogue");
-    if (cctx->stage == ZSTDcs_created) return ERROR(stage_wrong);  /* init missing */
+    RETURN_ERROR_IF(cctx->stage == ZSTDcs_created, stage_wrong, "init missing");
 
     /* special case : empty frame */
     if (cctx->stage == ZSTDcs_init) {
         fhSize = ZSTD_writeFrameHeader(dst, dstCapacity, cctx->appliedParams, 0, 0);
-        if (ZSTD_isError(fhSize)) return fhSize;
+        FORWARD_IF_ERROR(fhSize);
         dstCapacity -= fhSize;
         op += fhSize;
         cctx->stage = ZSTDcs_ongoing;
@@ -3274,7 +3380,7 @@ static size_t ZSTD_writeEpilogue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity)
     if (cctx->stage != ZSTDcs_ending) {
         /* write one last empty block, make it the "last" block */
         U32 const cBlockHeader24 = 1 /* last block */ + (((U32)bt_raw)<<1) + 0;
-        if (dstCapacity<4) return ERROR(dstSize_tooSmall);
+        RETURN_ERROR_IF(dstCapacity<4, dstSize_tooSmall);
         MEM_writeLE32(op, cBlockHeader24);
         op += ZSTD_blockHeaderSize;
         dstCapacity -= ZSTD_blockHeaderSize;
@@ -3282,7 +3388,7 @@ static size_t ZSTD_writeEpilogue(ZSTD_CCtx* cctx, void* dst, size_t dstCapacity)
 
     if (cctx->appliedParams.fParams.checksumFlag) {
         U32 const checksum = (U32) XXH64_digest(&cctx->xxhState);
-        if (dstCapacity<4) return ERROR(dstSize_tooSmall);
+        RETURN_ERROR_IF(dstCapacity<4, dstSize_tooSmall);
         DEBUGLOG(4, "ZSTD_writeEpilogue: write checksum : %08X", (unsigned)checksum);
         MEM_writeLE32(op, checksum);
         op += 4;
@@ -3300,18 +3406,20 @@ size_t ZSTD_compressEnd (ZSTD_CCtx* cctx,
     size_t const cSize = ZSTD_compressContinue_internal(cctx,
                                 dst, dstCapacity, src, srcSize,
                                 1 /* frame mode */, 1 /* last chunk */);
-    if (ZSTD_isError(cSize)) return cSize;
+    FORWARD_IF_ERROR(cSize);
     endResult = ZSTD_writeEpilogue(cctx, (char*)dst + cSize, dstCapacity-cSize);
-    if (ZSTD_isError(endResult)) return endResult;
+    FORWARD_IF_ERROR(endResult);
     assert(!(cctx->appliedParams.fParams.contentSizeFlag && cctx->pledgedSrcSizePlusOne == 0));
     if (cctx->pledgedSrcSizePlusOne != 0) {  /* control src size */
         ZSTD_STATIC_ASSERT(ZSTD_CONTENTSIZE_UNKNOWN == (unsigned long long)-1);
         DEBUGLOG(4, "end of frame : controlling src size");
-        if (cctx->pledgedSrcSizePlusOne != cctx->consumedSrcSize+1) {
-            DEBUGLOG(4, "error : pledgedSrcSize = %u, while realSrcSize = %u",
-                (unsigned)cctx->pledgedSrcSizePlusOne-1, (unsigned)cctx->consumedSrcSize);
-            return ERROR(srcSize_wrong);
-    }   }
+        RETURN_ERROR_IF(
+            cctx->pledgedSrcSizePlusOne != cctx->consumedSrcSize+1,
+            srcSize_wrong,
+             "error : pledgedSrcSize = %u, while realSrcSize = %u",
+            (unsigned)cctx->pledgedSrcSizePlusOne-1,
+            (unsigned)cctx->consumedSrcSize);
+    }
     return cSize + endResult;
 }
 
@@ -3339,7 +3447,7 @@ size_t ZSTD_compress_advanced (ZSTD_CCtx* cctx,
                                ZSTD_parameters params)
 {
     DEBUGLOG(4, "ZSTD_compress_advanced");
-    CHECK_F(ZSTD_checkCParams(params.cParams));
+    FORWARD_IF_ERROR(ZSTD_checkCParams(params.cParams));
     return ZSTD_compress_internal(cctx,
                                   dst, dstCapacity,
                                   src, srcSize,
@@ -3356,7 +3464,7 @@ size_t ZSTD_compress_advanced_internal(
         ZSTD_CCtx_params params)
 {
     DEBUGLOG(4, "ZSTD_compress_advanced_internal (srcSize:%u)", (unsigned)srcSize);
-    CHECK_F( ZSTD_compressBegin_internal(cctx,
+    FORWARD_IF_ERROR( ZSTD_compressBegin_internal(cctx,
                          dict, dictSize, ZSTD_dct_auto, ZSTD_dtlm_fast, NULL,
                          params, srcSize, ZSTDb_not_buffered) );
     return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);
@@ -3440,7 +3548,7 @@ static size_t ZSTD_initCDict_internal(
         void* const internalBuffer = ZSTD_malloc(dictSize, cdict->customMem);
         cdict->dictBuffer = internalBuffer;
         cdict->dictContent = internalBuffer;
-        if (!internalBuffer) return ERROR(memory_allocation);
+        RETURN_ERROR_IF(!internalBuffer, memory_allocation);
         memcpy(internalBuffer, dictBuffer, dictSize);
     }
     cdict->dictContentSize = dictSize;
@@ -3466,7 +3574,7 @@ static size_t ZSTD_initCDict_internal(
                     &cdict->cBlockState, &cdict->matchState, &params,
                     cdict->dictContent, cdict->dictContentSize,
                     dictContentType, ZSTD_dtlm_full, cdict->workspace);
-            if (ZSTD_isError(dictID)) return dictID;
+            FORWARD_IF_ERROR(dictID);
             assert(dictID <= (size_t)(U32)-1);
             cdict->dictID = (U32)dictID;
         }
@@ -3596,7 +3704,7 @@ size_t ZSTD_compressBegin_usingCDict_advanced(
     ZSTD_frameParameters const fParams, unsigned long long const pledgedSrcSize)
 {
     DEBUGLOG(4, "ZSTD_compressBegin_usingCDict_advanced");
-    if (cdict==NULL) return ERROR(dictionary_wrong);
+    RETURN_ERROR_IF(cdict==NULL, dictionary_wrong);
     {   ZSTD_CCtx_params params = cctx->requestedParams;
         params.cParams = ZSTD_getCParamsFromCDict(cdict);
         /* Increase window log to fit the entire dictionary and source if the
@@ -3632,7 +3740,7 @@ size_t ZSTD_compress_usingCDict_advanced(ZSTD_CCtx* cctx,
                                 const void* src, size_t srcSize,
                                 const ZSTD_CDict* cdict, ZSTD_frameParameters fParams)
 {
-    CHECK_F (ZSTD_compressBegin_usingCDict_advanced(cctx, cdict, fParams, srcSize));   /* will check if cdict != NULL */
+    FORWARD_IF_ERROR(ZSTD_compressBegin_usingCDict_advanced(cctx, cdict, fParams, srcSize));   /* will check if cdict != NULL */
     return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);
 }
 
@@ -3700,7 +3808,7 @@ static size_t ZSTD_resetCStream_internal(ZSTD_CStream* cctx,
     assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
     assert(!((dict) && (cdict)));  /* either dict or cdict, not both */
 
-    CHECK_F( ZSTD_compressBegin_internal(cctx,
+    FORWARD_IF_ERROR( ZSTD_compressBegin_internal(cctx,
                                          dict, dictSize, dictContentType, ZSTD_dtlm_fast,
                                          cdict,
                                          params, pledgedSrcSize,
@@ -3718,13 +3826,17 @@ static size_t ZSTD_resetCStream_internal(ZSTD_CStream* cctx,
 
 /* ZSTD_resetCStream():
  * pledgedSrcSize == 0 means "unknown" */
-size_t ZSTD_resetCStream(ZSTD_CStream* zcs, unsigned long long pledgedSrcSize)
+size_t ZSTD_resetCStream(ZSTD_CStream* zcs, unsigned long long pss)
 {
-    ZSTD_CCtx_params params = zcs->requestedParams;
+    /* temporary : 0 interpreted as "unknown" during transition period.
+     * Users willing to specify "unknown" **must** use ZSTD_CONTENTSIZE_UNKNOWN.
+     * 0 will be interpreted as "empty" in the future.
+     */
+    U64 const pledgedSrcSize = (pss==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;
     DEBUGLOG(4, "ZSTD_resetCStream: pledgedSrcSize = %u", (unsigned)pledgedSrcSize);
-    if (pledgedSrcSize==0) pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN;
-    params.fParams.contentSizeFlag = 1;
-    return ZSTD_resetCStream_internal(zcs, NULL, 0, ZSTD_dct_auto, zcs->cdict, params, pledgedSrcSize);
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
+    return 0;
 }
 
 /*! ZSTD_initCStream_internal() :
@@ -3736,32 +3848,18 @@ size_t ZSTD_initCStream_internal(ZSTD_CStream* zcs,
                     ZSTD_CCtx_params params, unsigned long long pledgedSrcSize)
 {
     DEBUGLOG(4, "ZSTD_initCStream_internal");
-    params.cParams = ZSTD_getCParamsFromCCtxParams(&params, pledgedSrcSize, dictSize);
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
     assert(!ZSTD_isError(ZSTD_checkCParams(params.cParams)));
+    zcs->requestedParams = params;
     assert(!((dict) && (cdict)));  /* either dict or cdict, not both */
-
-    if (dict && dictSize >= 8) {
-        DEBUGLOG(4, "loading dictionary of size %u", (unsigned)dictSize);
-        if (zcs->staticSize) {   /* static CCtx : never uses malloc */
-            /* incompatible with internal cdict creation */
-            return ERROR(memory_allocation);
-        }
-        ZSTD_freeCDict(zcs->cdictLocal);
-        zcs->cdictLocal = ZSTD_createCDict_advanced(dict, dictSize,
-                                            ZSTD_dlm_byCopy, ZSTD_dct_auto,
-                                            params.cParams, zcs->customMem);
-        zcs->cdict = zcs->cdictLocal;
-        if (zcs->cdictLocal == NULL) return ERROR(memory_allocation);
+    if (dict) {
+        FORWARD_IF_ERROR( ZSTD_CCtx_loadDictionary(zcs, dict, dictSize) );
     } else {
-        if (cdict) {
-            params.cParams = ZSTD_getCParamsFromCDict(cdict);  /* cParams are enforced from cdict; it includes windowLog */
-        }
-        ZSTD_freeCDict(zcs->cdictLocal);
-        zcs->cdictLocal = NULL;
-        zcs->cdict = cdict;
+        /* Dictionary is cleared if !cdict */
+        FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, cdict) );
     }
-
-    return ZSTD_resetCStream_internal(zcs, NULL, 0, ZSTD_dct_auto, zcs->cdict, params, pledgedSrcSize);
+    return 0;
 }
 
 /* ZSTD_initCStream_usingCDict_advanced() :
@@ -3772,22 +3870,20 @@ size_t ZSTD_initCStream_usingCDict_advanced(ZSTD_CStream* zcs,
                                             unsigned long long pledgedSrcSize)
 {
     DEBUGLOG(4, "ZSTD_initCStream_usingCDict_advanced");
-    if (!cdict) return ERROR(dictionary_wrong); /* cannot handle NULL cdict (does not know what to do) */
-    {   ZSTD_CCtx_params params = zcs->requestedParams;
-        params.cParams = ZSTD_getCParamsFromCDict(cdict);
-        params.fParams = fParams;
-        return ZSTD_initCStream_internal(zcs,
-                                NULL, 0, cdict,
-                                params, pledgedSrcSize);
-    }
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
+    zcs->requestedParams.fParams = fParams;
+    FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, cdict) );
+    return 0;
 }
 
 /* note : cdict must outlive compression session */
 size_t ZSTD_initCStream_usingCDict(ZSTD_CStream* zcs, const ZSTD_CDict* cdict)
 {
-    ZSTD_frameParameters const fParams = { 0 /* contentSizeFlag */, 0 /* checksum */, 0 /* hideDictID */ };
     DEBUGLOG(4, "ZSTD_initCStream_usingCDict");
-    return ZSTD_initCStream_usingCDict_advanced(zcs, cdict, fParams, ZSTD_CONTENTSIZE_UNKNOWN);  /* note : will check that cdict != NULL */
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, cdict) );
+    return 0;
 }
 
 
@@ -3797,33 +3893,53 @@ size_t ZSTD_initCStream_usingCDict(ZSTD_CStream* zcs, const ZSTD_CDict* cdict)
  * dict is loaded with default parameters ZSTD_dm_auto and ZSTD_dlm_byCopy. */
 size_t ZSTD_initCStream_advanced(ZSTD_CStream* zcs,
                                  const void* dict, size_t dictSize,
-                                 ZSTD_parameters params, unsigned long long pledgedSrcSize)
+                                 ZSTD_parameters params, unsigned long long pss)
 {
-    DEBUGLOG(4, "ZSTD_initCStream_advanced: pledgedSrcSize=%u, flag=%u",
-                (unsigned)pledgedSrcSize, params.fParams.contentSizeFlag);
-    CHECK_F( ZSTD_checkCParams(params.cParams) );
-    if ((pledgedSrcSize==0) && (params.fParams.contentSizeFlag==0)) pledgedSrcSize = ZSTD_CONTENTSIZE_UNKNOWN;  /* for compatibility with older programs relying on this behavior. Users should now specify ZSTD_CONTENTSIZE_UNKNOWN. This line will be removed in the future. */
+    /* for compatibility with older programs relying on this behavior.
+     * Users should now specify ZSTD_CONTENTSIZE_UNKNOWN.
+     * This line will be removed in the future.
+     */
+    U64 const pledgedSrcSize = (pss==0 && params.fParams.contentSizeFlag==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;
+    DEBUGLOG(4, "ZSTD_initCStream_advanced");
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
+    FORWARD_IF_ERROR( ZSTD_checkCParams(params.cParams) );
     zcs->requestedParams = ZSTD_assignParamsToCCtxParams(zcs->requestedParams, params);
-    return ZSTD_initCStream_internal(zcs, dict, dictSize, NULL /*cdict*/, zcs->requestedParams, pledgedSrcSize);
+    FORWARD_IF_ERROR( ZSTD_CCtx_loadDictionary(zcs, dict, dictSize) );
+    return 0;
 }
 
 size_t ZSTD_initCStream_usingDict(ZSTD_CStream* zcs, const void* dict, size_t dictSize, int compressionLevel)
 {
-    ZSTD_CCtxParams_init(&zcs->requestedParams, compressionLevel);
-    return ZSTD_initCStream_internal(zcs, dict, dictSize, NULL, zcs->requestedParams, ZSTD_CONTENTSIZE_UNKNOWN);
+    DEBUGLOG(4, "ZSTD_initCStream_usingDict");
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_loadDictionary(zcs, dict, dictSize) );
+    return 0;
 }
 
 size_t ZSTD_initCStream_srcSize(ZSTD_CStream* zcs, int compressionLevel, unsigned long long pss)
 {
-    U64 const pledgedSrcSize = (pss==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;  /* temporary : 0 interpreted as "unknown" during transition period. Users willing to specify "unknown" **must** use ZSTD_CONTENTSIZE_UNKNOWN. `0` will be interpreted as "empty" in the future */
-    ZSTD_CCtxParams_init(&zcs->requestedParams, compressionLevel);
-    return ZSTD_initCStream_internal(zcs, NULL, 0, NULL, zcs->requestedParams, pledgedSrcSize);
+    /* temporary : 0 interpreted as "unknown" during transition period.
+     * Users willing to specify "unknown" **must** use ZSTD_CONTENTSIZE_UNKNOWN.
+     * 0 will be interpreted as "empty" in the future.
+     */
+    U64 const pledgedSrcSize = (pss==0) ? ZSTD_CONTENTSIZE_UNKNOWN : pss;
+    DEBUGLOG(4, "ZSTD_initCStream_srcSize");
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, NULL) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize) );
+    return 0;
 }
 
 size_t ZSTD_initCStream(ZSTD_CStream* zcs, int compressionLevel)
 {
     DEBUGLOG(4, "ZSTD_initCStream");
-    return ZSTD_initCStream_srcSize(zcs, compressionLevel, ZSTD_CONTENTSIZE_UNKNOWN);
+    FORWARD_IF_ERROR( ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_refCDict(zcs, NULL) );
+    FORWARD_IF_ERROR( ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel) );
+    return 0;
 }
 
 /*======   Compression   ======*/
@@ -3847,10 +3963,10 @@ static size_t ZSTD_limitCopy(void* dst, size_t dstCapacity,
  *  internal function for all *compressStream*() variants
  *  non-static, because can be called from zstdmt_compress.c
  * @return : hint size for next input */
-size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
-                                   ZSTD_outBuffer* output,
-                                   ZSTD_inBuffer* input,
-                                   ZSTD_EndDirective const flushMode)
+static size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
+                                          ZSTD_outBuffer* output,
+                                          ZSTD_inBuffer* input,
+                                          ZSTD_EndDirective const flushMode)
 {
     const char* const istart = (const char*)input->src;
     const char* const iend = istart + input->size;
@@ -3873,8 +3989,7 @@ size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
         switch(zcs->streamStage)
         {
         case zcss_init:
-            /* call ZSTD_initCStream() first ! */
-            return ERROR(init_missing);
+            RETURN_ERROR(init_missing, "call ZSTD_initCStream() first!");
 
         case zcss_load:
             if ( (flushMode == ZSTD_e_end)
@@ -3884,7 +3999,7 @@ size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
                 size_t const cSize = ZSTD_compressEnd(zcs,
                                                 op, oend-op, ip, iend-ip);
                 DEBUGLOG(4, "ZSTD_compressEnd : cSize=%u", (unsigned)cSize);
-                if (ZSTD_isError(cSize)) return cSize;
+                FORWARD_IF_ERROR(cSize);
                 ip = iend;
                 op += cSize;
                 zcs->frameEnded = 1;
@@ -3925,7 +4040,7 @@ size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
                                     zcs->inBuff + zcs->inToCompress, iSize) :
                         ZSTD_compressContinue(zcs, cDst, oSize,
                                     zcs->inBuff + zcs->inToCompress, iSize);
-                if (ZSTD_isError(cSize)) return cSize;
+                FORWARD_IF_ERROR(cSize);
                 zcs->frameEnded = lastBlock;
                 /* prepare next block */
                 zcs->inBuffTarget = zcs->inBuffPos + zcs->blockSize;
@@ -4001,7 +4116,7 @@ static size_t ZSTD_nextInputSizeHint_MTorST(const ZSTD_CCtx* cctx)
 
 size_t ZSTD_compressStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input)
 {
-    CHECK_F( ZSTD_compressStream2(zcs, output, input, ZSTD_e_continue) );
+    FORWARD_IF_ERROR( ZSTD_compressStream2(zcs, output, input, ZSTD_e_continue) );
     return ZSTD_nextInputSizeHint_MTorST(zcs);
 }
 
@@ -4013,14 +4128,15 @@ size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
 {
     DEBUGLOG(5, "ZSTD_compressStream2, endOp=%u ", (unsigned)endOp);
     /* check conditions */
-    if (output->pos > output->size) return ERROR(GENERIC);
-    if (input->pos  > input->size)  return ERROR(GENERIC);
+    RETURN_ERROR_IF(output->pos > output->size, GENERIC);
+    RETURN_ERROR_IF(input->pos  > input->size, GENERIC);
     assert(cctx!=NULL);
 
     /* transparent initialization stage */
     if (cctx->streamStage == zcss_init) {
         ZSTD_CCtx_params params = cctx->requestedParams;
         ZSTD_prefixDict const prefixDict = cctx->prefixDict;
+        FORWARD_IF_ERROR( ZSTD_initLocalDict(cctx) ); /* Init the local dict if present. */
         memset(&cctx->prefixDict, 0, sizeof(cctx->prefixDict));   /* single usage */
         assert(prefixDict.dict==NULL || cctx->cdict==NULL);    /* only one can be set */
         DEBUGLOG(4, "ZSTD_compressStream2 : transparent init stage");
@@ -4039,11 +4155,11 @@ size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
                 DEBUGLOG(4, "ZSTD_compressStream2: creating new mtctx for nbWorkers=%u",
                             params.nbWorkers);
                 cctx->mtctx = ZSTDMT_createCCtx_advanced(params.nbWorkers, cctx->customMem);
-                if (cctx->mtctx == NULL) return ERROR(memory_allocation);
+                RETURN_ERROR_IF(cctx->mtctx == NULL, memory_allocation);
             }
             /* mt compression */
             DEBUGLOG(4, "call ZSTDMT_initCStream_internal as nbWorkers=%u", params.nbWorkers);
-            CHECK_F( ZSTDMT_initCStream_internal(
+            FORWARD_IF_ERROR( ZSTDMT_initCStream_internal(
                         cctx->mtctx,
                         prefixDict.dict, prefixDict.dictSize, ZSTD_dct_rawContent,
                         cctx->cdict, params, cctx->pledgedSrcSizePlusOne-1) );
@@ -4051,7 +4167,7 @@ size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
             cctx->appliedParams.nbWorkers = params.nbWorkers;
         } else
 #endif
-        {   CHECK_F( ZSTD_resetCStream_internal(cctx,
+        {   FORWARD_IF_ERROR( ZSTD_resetCStream_internal(cctx,
                             prefixDict.dict, prefixDict.dictSize, prefixDict.dictContentType,
                             cctx->cdict,
                             params, cctx->pledgedSrcSizePlusOne-1) );
@@ -4063,20 +4179,30 @@ size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
     /* compression stage */
 #ifdef ZSTD_MULTITHREAD
     if (cctx->appliedParams.nbWorkers > 0) {
+        int const forceMaxProgress = (endOp == ZSTD_e_flush || endOp == ZSTD_e_end);
+        size_t flushMin;
+        assert(forceMaxProgress || endOp == ZSTD_e_continue /* Protection for a new flush type */);
         if (cctx->cParamsChanged) {
             ZSTDMT_updateCParams_whileCompressing(cctx->mtctx, &cctx->requestedParams);
             cctx->cParamsChanged = 0;
         }
-        {   size_t const flushMin = ZSTDMT_compressStream_generic(cctx->mtctx, output, input, endOp);
+        do {
+            flushMin = ZSTDMT_compressStream_generic(cctx->mtctx, output, input, endOp);
             if ( ZSTD_isError(flushMin)
               || (endOp == ZSTD_e_end && flushMin == 0) ) { /* compression completed */
                 ZSTD_CCtx_reset(cctx, ZSTD_reset_session_only);
             }
-            DEBUGLOG(5, "completed ZSTD_compressStream2 delegating to ZSTDMT_compressStream_generic");
-            return flushMin;
-    }   }
+            FORWARD_IF_ERROR(flushMin);
+        } while (forceMaxProgress && flushMin != 0 && output->pos < output->size);
+        DEBUGLOG(5, "completed ZSTD_compressStream2 delegating to ZSTDMT_compressStream_generic");
+        /* Either we don't require maximum forward progress, we've finished the
+         * flush, or we are out of output space.
+         */
+        assert(!forceMaxProgress || flushMin == 0 || output->pos == output->size);
+        return flushMin;
+    }
 #endif
-    CHECK_F( ZSTD_compressStream_generic(cctx, output, input, endOp) );
+    FORWARD_IF_ERROR( ZSTD_compressStream_generic(cctx, output, input, endOp) );
     DEBUGLOG(5, "completed ZSTD_compressStream2");
     return cctx->outBuffContentSize - cctx->outBuffFlushedSize; /* remaining to flush */
 }
@@ -4107,10 +4233,10 @@ size_t ZSTD_compress2(ZSTD_CCtx* cctx,
                                         dst, dstCapacity, &oPos,
                                         src, srcSize, &iPos,
                                         ZSTD_e_end);
-        if (ZSTD_isError(result)) return result;
+        FORWARD_IF_ERROR(result);
         if (result != 0) {  /* compression not completed, due to lack of output space */
             assert(oPos == dstCapacity);
-            return ERROR(dstSize_tooSmall);
+            RETURN_ERROR(dstSize_tooSmall);
         }
         assert(iPos == srcSize);   /* all input is expected consumed */
         return oPos;
@@ -4132,7 +4258,7 @@ size_t ZSTD_endStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output)
 {
     ZSTD_inBuffer input = { NULL, 0, 0 };
     size_t const remainingToFlush = ZSTD_compressStream2(zcs, output, &input, ZSTD_e_end);
-    CHECK_F( remainingToFlush );
+    FORWARD_IF_ERROR( remainingToFlush );
     if (zcs->appliedParams.nbWorkers > 0) return remainingToFlush;   /* minimal estimation */
     /* single thread mode : attempt to calculate remaining to flush more precisely */
     {   size_t const lastBlockSize = zcs->frameEnded ? 0 : ZSTD_BLOCKHEADERSIZE;
@@ -4151,7 +4277,7 @@ int ZSTD_maxCLevel(void) { return ZSTD_MAX_CLEVEL; }
 int ZSTD_minCLevel(void) { return (int)-ZSTD_TARGETLENGTH_MAX; }
 
 static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEVEL+1] = {
-{   /* "default" - guarantees a monotonically increasing memory budget */
+{   /* "default" - for any srcSize > 256 KB */
     /* W,  C,  H,  S,  L, TL, strat */
     { 19, 12, 13,  1,  6,  1, ZSTD_fast    },  /* base for negative levels */
     { 19, 13, 14,  1,  7,  0, ZSTD_fast    },  /* level  1 */
@@ -4258,13 +4384,13 @@ static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEV
 };
 
 /*! ZSTD_getCParams() :
-*  @return ZSTD_compressionParameters structure for a selected compression level, srcSize and dictSize.
-*   Size values are optional, provide 0 if not known or unused */
+ * @return ZSTD_compressionParameters structure for a selected compression level, srcSize and dictSize.
+ *  Size values are optional, provide 0 if not known or unused */
 ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, unsigned long long srcSizeHint, size_t dictSize)
 {
     size_t const addedSize = srcSizeHint ? 0 : 500;
-    U64 const rSize = srcSizeHint+dictSize ? srcSizeHint+dictSize+addedSize : (U64)-1;
-    U32 const tableID = (rSize <= 256 KB) + (rSize <= 128 KB) + (rSize <= 16 KB);   /* intentional underflow for srcSizeHint == 0 */
+    U64 const rSize = srcSizeHint+dictSize ? srcSizeHint+dictSize+addedSize : ZSTD_CONTENTSIZE_UNKNOWN;  /* intentional overflow for srcSizeHint == ZSTD_CONTENTSIZE_UNKNOWN */
+    U32 const tableID = (rSize <= 256 KB) + (rSize <= 128 KB) + (rSize <= 16 KB);
     int row = compressionLevel;
     DEBUGLOG(5, "ZSTD_getCParams (cLevel=%i)", compressionLevel);
     if (compressionLevel == 0) row = ZSTD_CLEVEL_DEFAULT;   /* 0 == default */
@@ -4272,13 +4398,14 @@ ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, unsigned long l
     if (compressionLevel > ZSTD_MAX_CLEVEL) row = ZSTD_MAX_CLEVEL;
     {   ZSTD_compressionParameters cp = ZSTD_defaultCParameters[tableID][row];
         if (compressionLevel < 0) cp.targetLength = (unsigned)(-compressionLevel);   /* acceleration factor */
-        return ZSTD_adjustCParams_internal(cp, srcSizeHint, dictSize);
+        return ZSTD_adjustCParams_internal(cp, srcSizeHint, dictSize);               /* refine parameters based on srcSize & dictSize */
     }
 }
 
 /*! ZSTD_getParams() :
-*   same as ZSTD_getCParams(), but @return a `ZSTD_parameters` object (instead of `ZSTD_compressionParameters`).
-*   All fields of `ZSTD_frameParameters` are set to default (0) */
+ *  same idea as ZSTD_getCParams()
+ * @return a `ZSTD_parameters` structure (instead of `ZSTD_compressionParameters`).
+ *  Fields of `ZSTD_frameParameters` are set to default values */
 ZSTD_parameters ZSTD_getParams(int compressionLevel, unsigned long long srcSizeHint, size_t dictSize) {
     ZSTD_parameters params;
     ZSTD_compressionParameters const cParams = ZSTD_getCParams(compressionLevel, srcSizeHint, dictSize);
diff --git a/thirdparty/zstd/compress/zstd_compress_internal.h b/thirdparty/zstd/compress/zstd_compress_internal.h
index 29bca59859..cc3cbb9da9 100644
--- a/thirdparty/zstd/compress/zstd_compress_internal.h
+++ b/thirdparty/zstd/compress/zstd_compress_internal.h
@@ -36,9 +36,9 @@ extern "C" {
 #define ZSTD_DUBT_UNSORTED_MARK 1   /* For btlazy2 strategy, index 1 now means "unsorted".
                                        It could be confused for a real successor at index "1", if sorted as larger than its predecessor.
                                        It's not a big deal though : candidate will just be sorted again.
-                                       Additionnally, candidate position 1 will be lost.
+                                       Additionally, candidate position 1 will be lost.
                                        But candidate 1 cannot hide a large tree of candidates, so it's a minimal loss.
-                                       The benefit is that ZSTD_DUBT_UNSORTED_MARK cannot be misdhandled after table re-use with a different strategy
+                                       The benefit is that ZSTD_DUBT_UNSORTED_MARK cannot be mishandled after table re-use with a different strategy
                                        Constant required by ZSTD_compressBlock_btlazy2() and ZSTD_reduceTable_internal() */
 
 
@@ -55,6 +55,14 @@ typedef struct ZSTD_prefixDict_s {
 } ZSTD_prefixDict;
 
 typedef struct {
+    void* dictBuffer;
+    void const* dict;
+    size_t dictSize;
+    ZSTD_dictContentType_e dictContentType;
+    ZSTD_CDict* cdict;
+} ZSTD_localDict;
+
+typedef struct {
     U32 CTable[HUF_CTABLE_SIZE_U32(255)];
     HUF_repeat repeatMode;
 } ZSTD_hufCTables_t;
@@ -107,6 +115,7 @@ typedef struct {
     U32  offCodeSumBasePrice;    /* to compare to log2(offreq)  */
     ZSTD_OptPrice_e priceType;   /* prices can be determined dynamically, or follow a pre-defined cost structure */
     const ZSTD_entropyCTables_t* symbolCosts;  /* pre-calculated dictionary statistics */
+    ZSTD_literalCompressionMode_e literalCompressionMode;
 } optState_t;
 
 typedef struct {
@@ -188,6 +197,7 @@ struct ZSTD_CCtx_params_s {
                                 * 1<<wLog, even for dictionary */
 
     ZSTD_dictAttachPref_e attachDictPref;
+    ZSTD_literalCompressionMode_e literalCompressionMode;
 
     /* Multithreading: used to pass parameters to mtctx */
     int nbWorkers;
@@ -243,7 +253,7 @@ struct ZSTD_CCtx_s {
     U32    frameEnded;
 
     /* Dictionary */
-    ZSTD_CDict* cdictLocal;
+    ZSTD_localDict localDict;
     const ZSTD_CDict* cdict;
     ZSTD_prefixDict prefixDict;   /* single-usage dictionary */
 
@@ -806,13 +816,6 @@ size_t ZSTD_initCStream_internal(ZSTD_CStream* zcs,
 
 void ZSTD_resetSeqStore(seqStore_t* ssPtr);
 
-/*! ZSTD_compressStream_generic() :
- *  Private use only. To be called from zstdmt_compress.c in single-thread mode. */
-size_t ZSTD_compressStream_generic(ZSTD_CStream* zcs,
-                                   ZSTD_outBuffer* output,
-                                   ZSTD_inBuffer* input,
-                                   ZSTD_EndDirective const flushMode);
-
 /*! ZSTD_getCParamsFromCDict() :
  *  as the name implies */
 ZSTD_compressionParameters ZSTD_getCParamsFromCDict(const ZSTD_CDict* cdict);
@@ -839,7 +842,7 @@ size_t ZSTD_compress_advanced_internal(ZSTD_CCtx* cctx,
 /* ZSTD_writeLastEmptyBlock() :
  * output an empty Block with end-of-frame mark to complete a frame
  * @return : size of data written into `dst` (== ZSTD_blockHeaderSize (defined in zstd_internal.h))
- *           or an error code if `dstCapcity` is too small (<ZSTD_blockHeaderSize)
+ *           or an error code if `dstCapacity` is too small (<ZSTD_blockHeaderSize)
  */
 size_t ZSTD_writeLastEmptyBlock(void* dst, size_t dstCapacity);
 
diff --git a/thirdparty/zstd/compress/zstd_fast.c b/thirdparty/zstd/compress/zstd_fast.c
index 40ba0f73e6..ed997b441c 100644
--- a/thirdparty/zstd/compress/zstd_fast.c
+++ b/thirdparty/zstd/compress/zstd_fast.c
@@ -45,7 +45,155 @@ FORCE_INLINE_TEMPLATE
 size_t ZSTD_compressBlock_fast_generic(
         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
         void const* src, size_t srcSize,
-        U32 const mls, ZSTD_dictMode_e const dictMode)
+        U32 const mls)
+{
+    const ZSTD_compressionParameters* const cParams = &ms->cParams;
+    U32* const hashTable = ms->hashTable;
+    U32 const hlog = cParams->hashLog;
+    /* support stepSize of 0 */
+    size_t const stepSize = cParams->targetLength + !(cParams->targetLength) + 1;
+    const BYTE* const base = ms->window.base;
+    const BYTE* const istart = (const BYTE*)src;
+    /* We check ip0 (ip + 0) and ip1 (ip + 1) each loop */
+    const BYTE* ip0 = istart;
+    const BYTE* ip1;
+    const BYTE* anchor = istart;
+    const U32   prefixStartIndex = ms->window.dictLimit;
+    const BYTE* const prefixStart = base + prefixStartIndex;
+    const BYTE* const iend = istart + srcSize;
+    const BYTE* const ilimit = iend - HASH_READ_SIZE;
+    U32 offset_1=rep[0], offset_2=rep[1];
+    U32 offsetSaved = 0;
+
+    /* init */
+    ip0 += (ip0 == prefixStart);
+    ip1 = ip0 + 1;
+    {
+        U32 const maxRep = (U32)(ip0 - prefixStart);
+        if (offset_2 > maxRep) offsetSaved = offset_2, offset_2 = 0;
+        if (offset_1 > maxRep) offsetSaved = offset_1, offset_1 = 0;
+    }
+
+    /* Main Search Loop */
+    while (ip1 < ilimit) {   /* < instead of <=, because check at ip0+2 */
+        size_t mLength;
+        BYTE const* ip2 = ip0 + 2;
+        size_t const h0 = ZSTD_hashPtr(ip0, hlog, mls);
+        U32 const val0 = MEM_read32(ip0);
+        size_t const h1 = ZSTD_hashPtr(ip1, hlog, mls);
+        U32 const val1 = MEM_read32(ip1);
+        U32 const current0 = (U32)(ip0-base);
+        U32 const current1 = (U32)(ip1-base);
+        U32 const matchIndex0 = hashTable[h0];
+        U32 const matchIndex1 = hashTable[h1];
+        BYTE const* repMatch = ip2-offset_1;
+        const BYTE* match0 = base + matchIndex0;
+        const BYTE* match1 = base + matchIndex1;
+        U32 offcode;
+        hashTable[h0] = current0;   /* update hash table */
+        hashTable[h1] = current1;   /* update hash table */
+
+        assert(ip0 + 1 == ip1);
+
+        if ((offset_1 > 0) & (MEM_read32(repMatch) == MEM_read32(ip2))) {
+            mLength = ip2[-1] == repMatch[-1] ? 1 : 0;
+            ip0 = ip2 - mLength;
+            match0 = repMatch - mLength;
+            offcode = 0;
+            goto _match;
+        }
+        if ((matchIndex0 > prefixStartIndex) && MEM_read32(match0) == val0) {
+            /* found a regular match */
+            goto _offset;
+        }
+        if ((matchIndex1 > prefixStartIndex) && MEM_read32(match1) == val1) {
+            /* found a regular match after one literal */
+            ip0 = ip1;
+            match0 = match1;
+            goto _offset;
+        }
+        {
+            size_t const step = ((ip0-anchor) >> (kSearchStrength - 1)) + stepSize;
+            assert(step >= 2);
+            ip0 += step;
+            ip1 += step;
+            continue;
+        }
+_offset: /* Requires: ip0, match0 */
+        /* Compute the offset code */
+        offset_2 = offset_1;
+        offset_1 = (U32)(ip0-match0);
+        offcode = offset_1 + ZSTD_REP_MOVE;
+        mLength = 0;
+        /* Count the backwards match length */
+        while (((ip0>anchor) & (match0>prefixStart))
+             && (ip0[-1] == match0[-1])) { ip0--; match0--; mLength++; } /* catch up */
+
+_match: /* Requires: ip0, match0, offcode */
+        /* Count the forward length */
+        mLength += ZSTD_count(ip0+mLength+4, match0+mLength+4, iend) + 4;
+        ZSTD_storeSeq(seqStore, ip0-anchor, anchor, offcode, mLength-MINMATCH);
+        /* match found */
+        ip0 += mLength;
+        anchor = ip0;
+        ip1 = ip0 + 1;
+
+        if (ip0 <= ilimit) {
+            /* Fill Table */
+            assert(base+current0+2 > istart);  /* check base overflow */
+            hashTable[ZSTD_hashPtr(base+current0+2, hlog, mls)] = current0+2;  /* here because current+2 could be > iend-8 */
+            hashTable[ZSTD_hashPtr(ip0-2, hlog, mls)] = (U32)(ip0-2-base);
+
+            while ( (ip0 <= ilimit)
+                 && ( (offset_2>0)
+                    & (MEM_read32(ip0) == MEM_read32(ip0 - offset_2)) )) {
+                /* store sequence */
+                size_t const rLength = ZSTD_count(ip0+4, ip0+4-offset_2, iend) + 4;
+                U32 const tmpOff = offset_2; offset_2 = offset_1; offset_1 = tmpOff;  /* swap offset_2 <=> offset_1 */
+                hashTable[ZSTD_hashPtr(ip0, hlog, mls)] = (U32)(ip0-base);
+                ip0 += rLength;
+                ip1 = ip0 + 1;
+                ZSTD_storeSeq(seqStore, 0, anchor, 0, rLength-MINMATCH);
+                anchor = ip0;
+                continue;   /* faster when present (confirmed on gcc-8) ... (?) */
+            }
+        }
+    }
+
+    /* save reps for next block */
+    rep[0] = offset_1 ? offset_1 : offsetSaved;
+    rep[1] = offset_2 ? offset_2 : offsetSaved;
+
+    /* Return the last literals size */
+    return iend - anchor;
+}
+
+
+size_t ZSTD_compressBlock_fast(
+        ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
+        void const* src, size_t srcSize)
+{
+    ZSTD_compressionParameters const* cParams = &ms->cParams;
+    U32 const mls = cParams->minMatch;
+    assert(ms->dictMatchState == NULL);
+    switch(mls)
+    {
+    default: /* includes case 3 */
+    case 4 :
+        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 4);
+    case 5 :
+        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 5);
+    case 6 :
+        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 6);
+    case 7 :
+        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 7);
+    }
+}
+
+FORCE_INLINE_TEMPLATE
+size_t ZSTD_compressBlock_fast_dictMatchState_generic(
+        ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
+        void const* src, size_t srcSize, U32 const mls)
 {
     const ZSTD_compressionParameters* const cParams = &ms->cParams;
     U32* const hashTable = ms->hashTable;
@@ -64,46 +212,26 @@ size_t ZSTD_compressBlock_fast_generic(
     U32 offsetSaved = 0;
 
     const ZSTD_matchState_t* const dms = ms->dictMatchState;
-    const ZSTD_compressionParameters* const dictCParams =
-                                     dictMode == ZSTD_dictMatchState ?
-                                     &dms->cParams : NULL;
-    const U32* const dictHashTable = dictMode == ZSTD_dictMatchState ?
-                                     dms->hashTable : NULL;
-    const U32 dictStartIndex       = dictMode == ZSTD_dictMatchState ?
-                                     dms->window.dictLimit : 0;
-    const BYTE* const dictBase     = dictMode == ZSTD_dictMatchState ?
-                                     dms->window.base : NULL;
-    const BYTE* const dictStart    = dictMode == ZSTD_dictMatchState ?
-                                     dictBase + dictStartIndex : NULL;
-    const BYTE* const dictEnd      = dictMode == ZSTD_dictMatchState ?
-                                     dms->window.nextSrc : NULL;
-    const U32 dictIndexDelta       = dictMode == ZSTD_dictMatchState ?
-                                     prefixStartIndex - (U32)(dictEnd - dictBase) :
-                                     0;
+    const ZSTD_compressionParameters* const dictCParams = &dms->cParams ;
+    const U32* const dictHashTable = dms->hashTable;
+    const U32 dictStartIndex       = dms->window.dictLimit;
+    const BYTE* const dictBase     = dms->window.base;
+    const BYTE* const dictStart    = dictBase + dictStartIndex;
+    const BYTE* const dictEnd      = dms->window.nextSrc;
+    const U32 dictIndexDelta       = prefixStartIndex - (U32)(dictEnd - dictBase);
     const U32 dictAndPrefixLength  = (U32)(ip - prefixStart + dictEnd - dictStart);
-    const U32 dictHLog             = dictMode == ZSTD_dictMatchState ?
-                                     dictCParams->hashLog : hlog;
-
-    assert(dictMode == ZSTD_noDict || dictMode == ZSTD_dictMatchState);
+    const U32 dictHLog             = dictCParams->hashLog;
 
     /* otherwise, we would get index underflow when translating a dict index
      * into a local index */
-    assert(dictMode != ZSTD_dictMatchState
-        || prefixStartIndex >= (U32)(dictEnd - dictBase));
+    assert(prefixStartIndex >= (U32)(dictEnd - dictBase));
 
     /* init */
     ip += (dictAndPrefixLength == 0);
-    if (dictMode == ZSTD_noDict) {
-        U32 const maxRep = (U32)(ip - prefixStart);
-        if (offset_2 > maxRep) offsetSaved = offset_2, offset_2 = 0;
-        if (offset_1 > maxRep) offsetSaved = offset_1, offset_1 = 0;
-    }
-    if (dictMode == ZSTD_dictMatchState) {
-        /* dictMatchState repCode checks don't currently handle repCode == 0
-         * disabling. */
-        assert(offset_1 <= dictAndPrefixLength);
-        assert(offset_2 <= dictAndPrefixLength);
-    }
+    /* dictMatchState repCode checks don't currently handle repCode == 0
+     * disabling. */
+    assert(offset_1 <= dictAndPrefixLength);
+    assert(offset_2 <= dictAndPrefixLength);
 
     /* Main Search Loop */
     while (ip < ilimit) {   /* < instead of <=, because repcode check at (ip+1) */
@@ -113,50 +241,37 @@ size_t ZSTD_compressBlock_fast_generic(
         U32 const matchIndex = hashTable[h];
         const BYTE* match = base + matchIndex;
         const U32 repIndex = current + 1 - offset_1;
-        const BYTE* repMatch = (dictMode == ZSTD_dictMatchState
-                            && repIndex < prefixStartIndex) ?
+        const BYTE* repMatch = (repIndex < prefixStartIndex) ?
                                dictBase + (repIndex - dictIndexDelta) :
                                base + repIndex;
         hashTable[h] = current;   /* update hash table */
 
-        if ( (dictMode == ZSTD_dictMatchState)
-          && ((U32)((prefixStartIndex-1) - repIndex) >= 3) /* intentional underflow : ensure repIndex isn't overlapping dict + prefix */
+        if ( ((U32)((prefixStartIndex-1) - repIndex) >= 3) /* intentional underflow : ensure repIndex isn't overlapping dict + prefix */
           && (MEM_read32(repMatch) == MEM_read32(ip+1)) ) {
             const BYTE* const repMatchEnd = repIndex < prefixStartIndex ? dictEnd : iend;
             mLength = ZSTD_count_2segments(ip+1+4, repMatch+4, iend, repMatchEnd, prefixStart) + 4;
             ip++;
             ZSTD_storeSeq(seqStore, ip-anchor, anchor, 0, mLength-MINMATCH);
-        } else if ( dictMode == ZSTD_noDict
-                 && ((offset_1 > 0) & (MEM_read32(ip+1-offset_1) == MEM_read32(ip+1)))) {
-            mLength = ZSTD_count(ip+1+4, ip+1+4-offset_1, iend) + 4;
-            ip++;
-            ZSTD_storeSeq(seqStore, ip-anchor, anchor, 0, mLength-MINMATCH);
         } else if ( (matchIndex <= prefixStartIndex) ) {
-            if (dictMode == ZSTD_dictMatchState) {
-                size_t const dictHash = ZSTD_hashPtr(ip, dictHLog, mls);
-                U32 const dictMatchIndex = dictHashTable[dictHash];
-                const BYTE* dictMatch = dictBase + dictMatchIndex;
-                if (dictMatchIndex <= dictStartIndex ||
-                    MEM_read32(dictMatch) != MEM_read32(ip)) {
-                    assert(stepSize >= 1);
-                    ip += ((ip-anchor) >> kSearchStrength) + stepSize;
-                    continue;
-                } else {
-                    /* found a dict match */
-                    U32 const offset = (U32)(current-dictMatchIndex-dictIndexDelta);
-                    mLength = ZSTD_count_2segments(ip+4, dictMatch+4, iend, dictEnd, prefixStart) + 4;
-                    while (((ip>anchor) & (dictMatch>dictStart))
-                         && (ip[-1] == dictMatch[-1])) {
-                        ip--; dictMatch--; mLength++;
-                    } /* catch up */
-                    offset_2 = offset_1;
-                    offset_1 = offset;
-                    ZSTD_storeSeq(seqStore, ip-anchor, anchor, offset + ZSTD_REP_MOVE, mLength-MINMATCH);
-                }
-            } else {
+            size_t const dictHash = ZSTD_hashPtr(ip, dictHLog, mls);
+            U32 const dictMatchIndex = dictHashTable[dictHash];
+            const BYTE* dictMatch = dictBase + dictMatchIndex;
+            if (dictMatchIndex <= dictStartIndex ||
+                MEM_read32(dictMatch) != MEM_read32(ip)) {
                 assert(stepSize >= 1);
                 ip += ((ip-anchor) >> kSearchStrength) + stepSize;
                 continue;
+            } else {
+                /* found a dict match */
+                U32 const offset = (U32)(current-dictMatchIndex-dictIndexDelta);
+                mLength = ZSTD_count_2segments(ip+4, dictMatch+4, iend, dictEnd, prefixStart) + 4;
+                while (((ip>anchor) & (dictMatch>dictStart))
+                     && (ip[-1] == dictMatch[-1])) {
+                    ip--; dictMatch--; mLength++;
+                } /* catch up */
+                offset_2 = offset_1;
+                offset_1 = offset;
+                ZSTD_storeSeq(seqStore, ip-anchor, anchor, offset + ZSTD_REP_MOVE, mLength-MINMATCH);
             }
         } else if (MEM_read32(match) != MEM_read32(ip)) {
             /* it's not a match, and we're not going to check the dictionary */
@@ -185,41 +300,27 @@ size_t ZSTD_compressBlock_fast_generic(
             hashTable[ZSTD_hashPtr(ip-2, hlog, mls)] = (U32)(ip-2-base);
 
             /* check immediate repcode */
-            if (dictMode == ZSTD_dictMatchState) {
-                while (ip <= ilimit) {
-                    U32 const current2 = (U32)(ip-base);
-                    U32 const repIndex2 = current2 - offset_2;
-                    const BYTE* repMatch2 = repIndex2 < prefixStartIndex ?
-                            dictBase - dictIndexDelta + repIndex2 :
-                            base + repIndex2;
-                    if ( ((U32)((prefixStartIndex-1) - (U32)repIndex2) >= 3 /* intentional overflow */)
-                       && (MEM_read32(repMatch2) == MEM_read32(ip)) ) {
-                        const BYTE* const repEnd2 = repIndex2 < prefixStartIndex ? dictEnd : iend;
-                        size_t const repLength2 = ZSTD_count_2segments(ip+4, repMatch2+4, iend, repEnd2, prefixStart) + 4;
-                        U32 tmpOffset = offset_2; offset_2 = offset_1; offset_1 = tmpOffset;   /* swap offset_2 <=> offset_1 */
-                        ZSTD_storeSeq(seqStore, 0, anchor, 0, repLength2-MINMATCH);
-                        hashTable[ZSTD_hashPtr(ip, hlog, mls)] = current2;
-                        ip += repLength2;
-                        anchor = ip;
-                        continue;
-                    }
-                    break;
+            while (ip <= ilimit) {
+                U32 const current2 = (U32)(ip-base);
+                U32 const repIndex2 = current2 - offset_2;
+                const BYTE* repMatch2 = repIndex2 < prefixStartIndex ?
+                        dictBase - dictIndexDelta + repIndex2 :
+                        base + repIndex2;
+                if ( ((U32)((prefixStartIndex-1) - (U32)repIndex2) >= 3 /* intentional overflow */)
+                   && (MEM_read32(repMatch2) == MEM_read32(ip)) ) {
+                    const BYTE* const repEnd2 = repIndex2 < prefixStartIndex ? dictEnd : iend;
+                    size_t const repLength2 = ZSTD_count_2segments(ip+4, repMatch2+4, iend, repEnd2, prefixStart) + 4;
+                    U32 tmpOffset = offset_2; offset_2 = offset_1; offset_1 = tmpOffset;   /* swap offset_2 <=> offset_1 */
+                    ZSTD_storeSeq(seqStore, 0, anchor, 0, repLength2-MINMATCH);
+                    hashTable[ZSTD_hashPtr(ip, hlog, mls)] = current2;
+                    ip += repLength2;
+                    anchor = ip;
+                    continue;
                 }
+                break;
             }
-
-            if (dictMode == ZSTD_noDict) {
-                while ( (ip <= ilimit)
-                     && ( (offset_2>0)
-                        & (MEM_read32(ip) == MEM_read32(ip - offset_2)) )) {
-                    /* store sequence */
-                    size_t const rLength = ZSTD_count(ip+4, ip+4-offset_2, iend) + 4;
-                    U32 const tmpOff = offset_2; offset_2 = offset_1; offset_1 = tmpOff;  /* swap offset_2 <=> offset_1 */
-                    hashTable[ZSTD_hashPtr(ip, hlog, mls)] = (U32)(ip-base);
-                    ZSTD_storeSeq(seqStore, 0, anchor, 0, rLength-MINMATCH);
-                    ip += rLength;
-                    anchor = ip;
-                    continue;   /* faster when present ... (?) */
-    }   }   }   }
+        }
+    }
 
     /* save reps for next block */
     rep[0] = offset_1 ? offset_1 : offsetSaved;
@@ -229,28 +330,6 @@ size_t ZSTD_compressBlock_fast_generic(
     return iend - anchor;
 }
 
-
-size_t ZSTD_compressBlock_fast(
-        ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
-        void const* src, size_t srcSize)
-{
-    ZSTD_compressionParameters const* cParams = &ms->cParams;
-    U32 const mls = cParams->minMatch;
-    assert(ms->dictMatchState == NULL);
-    switch(mls)
-    {
-    default: /* includes case 3 */
-    case 4 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 4, ZSTD_noDict);
-    case 5 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 5, ZSTD_noDict);
-    case 6 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 6, ZSTD_noDict);
-    case 7 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 7, ZSTD_noDict);
-    }
-}
-
 size_t ZSTD_compressBlock_fast_dictMatchState(
         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
         void const* src, size_t srcSize)
@@ -262,13 +341,13 @@ size_t ZSTD_compressBlock_fast_dictMatchState(
     {
     default: /* includes case 3 */
     case 4 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 4, ZSTD_dictMatchState);
+        return ZSTD_compressBlock_fast_dictMatchState_generic(ms, seqStore, rep, src, srcSize, 4);
     case 5 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 5, ZSTD_dictMatchState);
+        return ZSTD_compressBlock_fast_dictMatchState_generic(ms, seqStore, rep, src, srcSize, 5);
     case 6 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 6, ZSTD_dictMatchState);
+        return ZSTD_compressBlock_fast_dictMatchState_generic(ms, seqStore, rep, src, srcSize, 6);
     case 7 :
-        return ZSTD_compressBlock_fast_generic(ms, seqStore, rep, src, srcSize, 7, ZSTD_dictMatchState);
+        return ZSTD_compressBlock_fast_dictMatchState_generic(ms, seqStore, rep, src, srcSize, 7);
     }
 }
 
diff --git a/thirdparty/zstd/compress/zstd_lazy.h b/thirdparty/zstd/compress/zstd_lazy.h
index ef85a6df9c..bb1763069f 100644
--- a/thirdparty/zstd/compress/zstd_lazy.h
+++ b/thirdparty/zstd/compress/zstd_lazy.h
@@ -19,7 +19,7 @@ extern "C" {
 
 U32 ZSTD_insertAndFindFirstIndex(ZSTD_matchState_t* ms, const BYTE* ip);
 
-void ZSTD_preserveUnsortedMark (U32* const table, U32 const size, U32 const reducerValue);  /*! used in ZSTD_reduceIndex(). pre-emptively increase value of ZSTD_DUBT_UNSORTED_MARK */
+void ZSTD_preserveUnsortedMark (U32* const table, U32 const size, U32 const reducerValue);  /*! used in ZSTD_reduceIndex(). preemptively increase value of ZSTD_DUBT_UNSORTED_MARK */
 
 size_t ZSTD_compressBlock_btlazy2(
         ZSTD_matchState_t* ms, seqStore_t* seqStore, U32 rep[ZSTD_REP_NUM],
diff --git a/thirdparty/zstd/compress/zstd_ldm.c b/thirdparty/zstd/compress/zstd_ldm.c
index 58eb2ffe4d..784d20f3ab 100644
--- a/thirdparty/zstd/compress/zstd_ldm.c
+++ b/thirdparty/zstd/compress/zstd_ldm.c
@@ -429,7 +429,7 @@ size_t ZSTD_ldm_generateSequences(
      */
     assert(ldmState->window.nextSrc >= (BYTE const*)src + srcSize);
     /* The input could be very large (in zstdmt), so it must be broken up into
-     * chunks to enforce the maximmum distance and handle overflow correction.
+     * chunks to enforce the maximum distance and handle overflow correction.
      */
     assert(sequences->pos <= sequences->size);
     assert(sequences->size <= sequences->capacity);
diff --git a/thirdparty/zstd/compress/zstd_opt.c b/thirdparty/zstd/compress/zstd_opt.c
index 44de6e97fd..efb69d3267 100644
--- a/thirdparty/zstd/compress/zstd_opt.c
+++ b/thirdparty/zstd/compress/zstd_opt.c
@@ -64,9 +64,15 @@ MEM_STATIC double ZSTD_fCost(U32 price)
 }
 #endif
 
+static int ZSTD_compressedLiterals(optState_t const* const optPtr)
+{
+    return optPtr->literalCompressionMode != ZSTD_lcm_uncompressed;
+}
+
 static void ZSTD_setBasePrices(optState_t* optPtr, int optLevel)
 {
-    optPtr->litSumBasePrice = WEIGHT(optPtr->litSum, optLevel);
+    if (ZSTD_compressedLiterals(optPtr))
+        optPtr->litSumBasePrice = WEIGHT(optPtr->litSum, optLevel);
     optPtr->litLengthSumBasePrice = WEIGHT(optPtr->litLengthSum, optLevel);
     optPtr->matchLengthSumBasePrice = WEIGHT(optPtr->matchLengthSum, optLevel);
     optPtr->offCodeSumBasePrice = WEIGHT(optPtr->offCodeSum, optLevel);
@@ -99,6 +105,7 @@ ZSTD_rescaleFreqs(optState_t* const optPtr,
             const BYTE* const src, size_t const srcSize,
                   int const optLevel)
 {
+    int const compressedLiterals = ZSTD_compressedLiterals(optPtr);
     DEBUGLOG(5, "ZSTD_rescaleFreqs (srcSize=%u)", (unsigned)srcSize);
     optPtr->priceType = zop_dynamic;
 
@@ -113,9 +120,10 @@ ZSTD_rescaleFreqs(optState_t* const optPtr,
             /* huffman table presumed generated by dictionary */
             optPtr->priceType = zop_dynamic;
 
-            assert(optPtr->litFreq != NULL);
-            optPtr->litSum = 0;
-            {   unsigned lit;
+            if (compressedLiterals) {
+                unsigned lit;
+                assert(optPtr->litFreq != NULL);
+                optPtr->litSum = 0;
                 for (lit=0; lit<=MaxLit; lit++) {
                     U32 const scaleLog = 11;   /* scale to 2K */
                     U32 const bitCost = HUF_getNbBits(optPtr->symbolCosts->huf.CTable, lit);
@@ -163,10 +171,11 @@ ZSTD_rescaleFreqs(optState_t* const optPtr,
         } else {  /* not a dictionary */
 
             assert(optPtr->litFreq != NULL);
-            {   unsigned lit = MaxLit;
+            if (compressedLiterals) {
+                unsigned lit = MaxLit;
                 HIST_count_simple(optPtr->litFreq, &lit, src, srcSize);   /* use raw first block to init statistics */
+                optPtr->litSum = ZSTD_downscaleStat(optPtr->litFreq, MaxLit, 1);
             }
-            optPtr->litSum = ZSTD_downscaleStat(optPtr->litFreq, MaxLit, 1);
 
             {   unsigned ll;
                 for (ll=0; ll<=MaxLL; ll++)
@@ -190,7 +199,8 @@ ZSTD_rescaleFreqs(optState_t* const optPtr,
 
     } else {   /* new block : re-use previous statistics, scaled down */
 
-        optPtr->litSum = ZSTD_downscaleStat(optPtr->litFreq, MaxLit, 1);
+        if (compressedLiterals)
+            optPtr->litSum = ZSTD_downscaleStat(optPtr->litFreq, MaxLit, 1);
         optPtr->litLengthSum = ZSTD_downscaleStat(optPtr->litLengthFreq, MaxLL, 0);
         optPtr->matchLengthSum = ZSTD_downscaleStat(optPtr->matchLengthFreq, MaxML, 0);
         optPtr->offCodeSum = ZSTD_downscaleStat(optPtr->offCodeFreq, MaxOff, 0);
@@ -207,6 +217,10 @@ static U32 ZSTD_rawLiteralsCost(const BYTE* const literals, U32 const litLength,
                                 int optLevel)
 {
     if (litLength == 0) return 0;
+
+    if (!ZSTD_compressedLiterals(optPtr))
+        return (litLength << 3) * BITCOST_MULTIPLIER;  /* Uncompressed - 8 bytes per literal. */
+
     if (optPtr->priceType == zop_predef)
         return (litLength*6) * BITCOST_MULTIPLIER;  /* 6 bit per literal - no statistic used */
 
@@ -310,7 +324,8 @@ static void ZSTD_updateStats(optState_t* const optPtr,
                              U32 offsetCode, U32 matchLength)
 {
     /* literals */
-    {   U32 u;
+    if (ZSTD_compressedLiterals(optPtr)) {
+        U32 u;
         for (u=0; u < litLength; u++)
             optPtr->litFreq[literals[u]] += ZSTD_LITFREQ_ADD;
         optPtr->litSum += litLength*ZSTD_LITFREQ_ADD;
@@ -870,7 +885,7 @@ ZSTD_compressBlock_opt_generic(ZSTD_matchState_t* ms,
             /* large match -> immediate encoding */
             {   U32 const maxML = matches[nbMatches-1].len;
                 U32 const maxOffset = matches[nbMatches-1].off;
-                DEBUGLOG(6, "found %u matches of maxLength=%u and maxOffCode=%u at cPos=%u => start new serie",
+                DEBUGLOG(6, "found %u matches of maxLength=%u and maxOffCode=%u at cPos=%u => start new series",
                             nbMatches, maxML, maxOffset, (U32)(ip-prefixStart));
 
                 if (maxML > sufficient_len) {
@@ -1108,7 +1123,8 @@ static U32 ZSTD_upscaleStat(unsigned* table, U32 lastEltIndex, int bonus)
 /* used in 2-pass strategy */
 MEM_STATIC void ZSTD_upscaleStats(optState_t* optPtr)
 {
-    optPtr->litSum = ZSTD_upscaleStat(optPtr->litFreq, MaxLit, 0);
+    if (ZSTD_compressedLiterals(optPtr))
+        optPtr->litSum = ZSTD_upscaleStat(optPtr->litFreq, MaxLit, 0);
     optPtr->litLengthSum = ZSTD_upscaleStat(optPtr->litLengthFreq, MaxLL, 0);
     optPtr->matchLengthSum = ZSTD_upscaleStat(optPtr->matchLengthFreq, MaxML, 0);
     optPtr->offCodeSum = ZSTD_upscaleStat(optPtr->offCodeFreq, MaxOff, 0);
@@ -1117,7 +1133,7 @@ MEM_STATIC void ZSTD_upscaleStats(optState_t* optPtr)
 /* ZSTD_initStats_ultra():
  * make a first compression pass, just to seed stats with more accurate starting values.
  * only works on first block, with no dictionary and no ldm.
- * this function cannot error, hence its constract must be respected.
+ * this function cannot error, hence its contract must be respected.
  */
 static void
 ZSTD_initStats_ultra(ZSTD_matchState_t* ms,
diff --git a/thirdparty/zstd/compress/zstdmt_compress.c b/thirdparty/zstd/compress/zstdmt_compress.c
index 2cbd6ffade..38fbb90768 100644
--- a/thirdparty/zstd/compress/zstdmt_compress.c
+++ b/thirdparty/zstd/compress/zstdmt_compress.c
@@ -22,6 +22,7 @@
 /* ======   Dependencies   ====== */
 #include <string.h>      /* memcpy, memset */
 #include <limits.h>      /* INT_MAX, UINT_MAX */
+#include "mem.h"         /* MEM_STATIC */
 #include "pool.h"        /* threadpool */
 #include "threading.h"   /* mutex */
 #include "zstd_compress_internal.h"  /* MIN, ERROR, ZSTD_*, ZSTD_highbit32 */
@@ -456,7 +457,7 @@ typedef struct {
      * Must be acquired after the main mutex when acquiring both.
      */
     ZSTD_pthread_mutex_t ldmWindowMutex;
-    ZSTD_pthread_cond_t ldmWindowCond;  /* Signaled when ldmWindow is udpated */
+    ZSTD_pthread_cond_t ldmWindowCond;  /* Signaled when ldmWindow is updated */
     ZSTD_window_t ldmWindow;  /* A thread-safe copy of ldmState.window */
 } serialState_t;
 
@@ -647,7 +648,7 @@ static void ZSTDMT_compressionJob(void* jobDescription)
     buffer_t dstBuff = job->dstBuff;
     size_t lastCBlockSize = 0;
 
-    /* ressources */
+    /* resources */
     if (cctx==NULL) JOB_ERROR(ERROR(memory_allocation));
     if (dstBuff.start == NULL) {   /* streaming job : doesn't provide a dstBuffer */
         dstBuff = ZSTDMT_getBuffer(job->bufPool);
@@ -672,7 +673,7 @@ static void ZSTDMT_compressionJob(void* jobDescription)
         if (ZSTD_isError(initError)) JOB_ERROR(initError);
     } else {  /* srcStart points at reloaded section */
         U64 const pledgedSrcSize = job->firstJob ? job->fullFrameSize : job->src.size;
-        {   size_t const forceWindowError = ZSTD_CCtxParam_setParameter(&jobParams, ZSTD_c_forceMaxWindow, !job->firstJob);
+        {   size_t const forceWindowError = ZSTD_CCtxParams_setParameter(&jobParams, ZSTD_c_forceMaxWindow, !job->firstJob);
             if (ZSTD_isError(forceWindowError)) JOB_ERROR(forceWindowError);
         }
         {   size_t const initError = ZSTD_compressBegin_advanced_internal(cctx,
@@ -864,14 +865,10 @@ static size_t ZSTDMT_expandJobsTable (ZSTDMT_CCtx* mtctx, U32 nbWorkers) {
  * Internal use only */
 size_t ZSTDMT_CCtxParam_setNbWorkers(ZSTD_CCtx_params* params, unsigned nbWorkers)
 {
-    if (nbWorkers > ZSTDMT_NBWORKERS_MAX) nbWorkers = ZSTDMT_NBWORKERS_MAX;
-    params->nbWorkers = nbWorkers;
-    params->overlapLog = ZSTDMT_OVERLAPLOG_DEFAULT;
-    params->jobSize = 0;
-    return nbWorkers;
+    return ZSTD_CCtxParams_setParameter(params, ZSTD_c_nbWorkers, (int)nbWorkers);
 }
 
-ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced(unsigned nbWorkers, ZSTD_customMem cMem)
+MEM_STATIC ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced_internal(unsigned nbWorkers, ZSTD_customMem cMem)
 {
     ZSTDMT_CCtx* mtctx;
     U32 nbJobs = nbWorkers + 2;
@@ -906,6 +903,17 @@ ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced(unsigned nbWorkers, ZSTD_customMem cMem)
     return mtctx;
 }
 
+ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced(unsigned nbWorkers, ZSTD_customMem cMem)
+{
+#ifdef ZSTD_MULTITHREAD
+    return ZSTDMT_createCCtx_advanced_internal(nbWorkers, cMem);
+#else
+    (void)nbWorkers;
+    (void)cMem;
+    return NULL;
+#endif
+}
+
 ZSTDMT_CCtx* ZSTDMT_createCCtx(unsigned nbWorkers)
 {
     return ZSTDMT_createCCtx_advanced(nbWorkers, ZSTD_defaultCMem);
@@ -986,26 +994,13 @@ ZSTDMT_CCtxParam_setMTCtxParameter(ZSTD_CCtx_params* params,
     {
     case ZSTDMT_p_jobSize :
         DEBUGLOG(4, "ZSTDMT_CCtxParam_setMTCtxParameter : set jobSize to %i", value);
-        if ( value != 0  /* default */
-          && value < ZSTDMT_JOBSIZE_MIN)
-            value = ZSTDMT_JOBSIZE_MIN;
-        assert(value >= 0);
-        if (value > ZSTDMT_JOBSIZE_MAX) value = ZSTDMT_JOBSIZE_MAX;
-        params->jobSize = value;
-        return value;
-
+        return ZSTD_CCtxParams_setParameter(params, ZSTD_c_jobSize, value);
     case ZSTDMT_p_overlapLog :
         DEBUGLOG(4, "ZSTDMT_p_overlapLog : %i", value);
-        if (value < ZSTD_OVERLAPLOG_MIN) value = ZSTD_OVERLAPLOG_MIN;
-        if (value > ZSTD_OVERLAPLOG_MAX) value = ZSTD_OVERLAPLOG_MAX;
-        params->overlapLog = value;
-        return value;
-
+        return ZSTD_CCtxParams_setParameter(params, ZSTD_c_overlapLog, value);
     case ZSTDMT_p_rsyncable :
-        value = (value != 0);
-        params->rsyncable = value;
-        return value;
-
+        DEBUGLOG(4, "ZSTD_p_rsyncable : %i", value);
+        return ZSTD_CCtxParams_setParameter(params, ZSTD_c_rsyncable, value);
     default :
         return ERROR(parameter_unsupported);
     }
@@ -1021,32 +1016,29 @@ size_t ZSTDMT_getMTCtxParameter(ZSTDMT_CCtx* mtctx, ZSTDMT_parameter parameter,
 {
     switch (parameter) {
     case ZSTDMT_p_jobSize:
-        assert(mtctx->params.jobSize <= INT_MAX);
-        *value = (int)(mtctx->params.jobSize);
-        break;
+        return ZSTD_CCtxParams_getParameter(&mtctx->params, ZSTD_c_jobSize, value);
     case ZSTDMT_p_overlapLog:
-        *value = mtctx->params.overlapLog;
-        break;
+        return ZSTD_CCtxParams_getParameter(&mtctx->params, ZSTD_c_overlapLog, value);
     case ZSTDMT_p_rsyncable:
-        *value = mtctx->params.rsyncable;
-        break;
+        return ZSTD_CCtxParams_getParameter(&mtctx->params, ZSTD_c_rsyncable, value);
     default:
         return ERROR(parameter_unsupported);
     }
-    return 0;
 }
 
 /* Sets parameters relevant to the compression job,
  * initializing others to default values. */
 static ZSTD_CCtx_params ZSTDMT_initJobCCtxParams(ZSTD_CCtx_params const params)
 {
-    ZSTD_CCtx_params jobParams;
-    memset(&jobParams, 0, sizeof(jobParams));
-
-    jobParams.cParams = params.cParams;
-    jobParams.fParams = params.fParams;
-    jobParams.compressionLevel = params.compressionLevel;
-
+    ZSTD_CCtx_params jobParams = params;
+    /* Clear parameters related to multithreading */
+    jobParams.forceWindow = 0;
+    jobParams.nbWorkers = 0;
+    jobParams.jobSize = 0;
+    jobParams.overlapLog = 0;
+    jobParams.rsyncable = 0;
+    memset(&jobParams.ldmParams, 0, sizeof(ldmParams_t));
+    memset(&jobParams.customMem, 0, sizeof(ZSTD_customMem));
     return jobParams;
 }
 
@@ -1056,7 +1048,7 @@ static ZSTD_CCtx_params ZSTDMT_initJobCCtxParams(ZSTD_CCtx_params const params)
 static size_t ZSTDMT_resize(ZSTDMT_CCtx* mtctx, unsigned nbWorkers)
 {
     if (POOL_resize(mtctx->factory, nbWorkers)) return ERROR(memory_allocation);
-    CHECK_F( ZSTDMT_expandJobsTable(mtctx, nbWorkers) );
+    FORWARD_IF_ERROR( ZSTDMT_expandJobsTable(mtctx, nbWorkers) );
     mtctx->bufPool = ZSTDMT_expandBufferPool(mtctx->bufPool, nbWorkers);
     if (mtctx->bufPool == NULL) return ERROR(memory_allocation);
     mtctx->cctxPool = ZSTDMT_expandCCtxPool(mtctx->cctxPool, nbWorkers);
@@ -1263,7 +1255,7 @@ static size_t ZSTDMT_compress_advanced_internal(
     if (ZSTDMT_serialState_reset(&mtctx->serial, mtctx->seqPool, params, avgJobSize))
         return ERROR(memory_allocation);
 
-    CHECK_F( ZSTDMT_expandJobsTable(mtctx, nbJobs) );  /* only expands if necessary */
+    FORWARD_IF_ERROR( ZSTDMT_expandJobsTable(mtctx, nbJobs) );  /* only expands if necessary */
 
     {   unsigned u;
         for (u=0; u<nbJobs; u++) {
@@ -1396,7 +1388,7 @@ size_t ZSTDMT_initCStream_internal(
 
     /* init */
     if (params.nbWorkers != mtctx->params.nbWorkers)
-        CHECK_F( ZSTDMT_resize(mtctx, params.nbWorkers) );
+        FORWARD_IF_ERROR( ZSTDMT_resize(mtctx, params.nbWorkers) );
 
     if (params.jobSize != 0 && params.jobSize < ZSTDMT_JOBSIZE_MIN) params.jobSize = ZSTDMT_JOBSIZE_MIN;
     if (params.jobSize > (size_t)ZSTDMT_JOBSIZE_MAX) params.jobSize = ZSTDMT_JOBSIZE_MAX;
@@ -1547,7 +1539,7 @@ size_t ZSTDMT_initCStream(ZSTDMT_CCtx* mtctx, int compressionLevel) {
 /* ZSTDMT_writeLastEmptyBlock()
  * Write a single empty block with an end-of-frame to finish a frame.
  * Job must be created from streaming variant.
- * This function is always successfull if expected conditions are fulfilled.
+ * This function is always successful if expected conditions are fulfilled.
  */
 static void ZSTDMT_writeLastEmptyBlock(ZSTDMT_jobDescription* job)
 {
@@ -1987,7 +1979,7 @@ size_t ZSTDMT_compressStream_generic(ZSTDMT_CCtx* mtctx,
     assert(input->pos  <= input->size);
 
     if (mtctx->singleBlockingThread) {  /* delegate to single-thread (synchronous) */
-        return ZSTD_compressStream_generic(mtctx->cctxPool->cctx[0], output, input, endOp);
+        return ZSTD_compressStream2(mtctx->cctxPool->cctx[0], output, input, endOp);
     }
 
     if ((mtctx->frameEnded) && (endOp==ZSTD_e_continue)) {
@@ -2051,7 +2043,7 @@ size_t ZSTDMT_compressStream_generic(ZSTDMT_CCtx* mtctx,
       || ((endOp == ZSTD_e_end) && (!mtctx->frameEnded)) ) {   /* must finish the frame with a zero-size block */
         size_t const jobSize = mtctx->inBuff.filled;
         assert(mtctx->inBuff.filled <= mtctx->targetSectionSize);
-        CHECK_F( ZSTDMT_createCompressionJob(mtctx, jobSize, endOp) );
+        FORWARD_IF_ERROR( ZSTDMT_createCompressionJob(mtctx, jobSize, endOp) );
     }
 
     /* check for potential compressed data ready to be flushed */
@@ -2065,7 +2057,7 @@ size_t ZSTDMT_compressStream_generic(ZSTDMT_CCtx* mtctx,
 
 size_t ZSTDMT_compressStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output, ZSTD_inBuffer* input)
 {
-    CHECK_F( ZSTDMT_compressStream_generic(mtctx, output, input, ZSTD_e_continue) );
+    FORWARD_IF_ERROR( ZSTDMT_compressStream_generic(mtctx, output, input, ZSTD_e_continue) );
 
     /* recommended next input size : fill current input buffer */
     return mtctx->targetSectionSize - mtctx->inBuff.filled;   /* note : could be zero when input buffer is fully filled and no more availability to create new job */
@@ -2082,7 +2074,7 @@ static size_t ZSTDMT_flushStream_internal(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* ou
       || ((endFrame==ZSTD_e_end) && !mtctx->frameEnded)) {  /* need a last 0-size block to end frame */
            DEBUGLOG(5, "ZSTDMT_flushStream_internal : create a new job (%u bytes, end:%u)",
                         (U32)srcSize, (U32)endFrame);
-        CHECK_F( ZSTDMT_createCompressionJob(mtctx, srcSize, endFrame) );
+        FORWARD_IF_ERROR( ZSTDMT_createCompressionJob(mtctx, srcSize, endFrame) );
     }
 
     /* check if there is any data available to flush */
diff --git a/thirdparty/zstd/compress/zstdmt_compress.h b/thirdparty/zstd/compress/zstdmt_compress.h
index ee771681fa..12e6bcb3a3 100644
--- a/thirdparty/zstd/compress/zstdmt_compress.h
+++ b/thirdparty/zstd/compress/zstdmt_compress.h
@@ -17,10 +17,25 @@
 
 
 /* Note : This is an internal API.
- *        Some methods are still exposed (ZSTDLIB_API),
+ *        These APIs used to be exposed with ZSTDLIB_API,
  *        because it used to be the only way to invoke MT compression.
- *        Now, it's recommended to use ZSTD_compress_generic() instead.
- *        These methods will stop being exposed in a future version */
+ *        Now, it's recommended to use ZSTD_compress2 and ZSTD_compressStream2()
+ *        instead.
+ *
+ *        If you depend on these APIs and can't switch, then define
+ *        ZSTD_LEGACY_MULTITHREADED_API when making the dynamic library.
+ *        However, we may completely remove these functions in a future
+ *        release, so please switch soon.
+ *
+ *        This API requires ZSTD_MULTITHREAD to be defined during compilation,
+ *        otherwise ZSTDMT_createCCtx*() will fail.
+ */
+
+#ifdef ZSTD_LEGACY_MULTITHREADED_API
+#  define ZSTDMT_API ZSTDLIB_API
+#else
+#  define ZSTDMT_API
+#endif
 
 /* ===   Dependencies   === */
 #include <stddef.h>                /* size_t */
@@ -40,17 +55,19 @@
 
 /* ===   Memory management   === */
 typedef struct ZSTDMT_CCtx_s ZSTDMT_CCtx;
-ZSTDLIB_API ZSTDMT_CCtx* ZSTDMT_createCCtx(unsigned nbWorkers);
-ZSTDLIB_API ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced(unsigned nbWorkers,
+/* Requires ZSTD_MULTITHREAD to be defined during compilation, otherwise it will return NULL. */
+ZSTDMT_API ZSTDMT_CCtx* ZSTDMT_createCCtx(unsigned nbWorkers);
+/* Requires ZSTD_MULTITHREAD to be defined during compilation, otherwise it will return NULL. */
+ZSTDMT_API ZSTDMT_CCtx* ZSTDMT_createCCtx_advanced(unsigned nbWorkers,
                                                     ZSTD_customMem cMem);
-ZSTDLIB_API size_t ZSTDMT_freeCCtx(ZSTDMT_CCtx* mtctx);
+ZSTDMT_API size_t ZSTDMT_freeCCtx(ZSTDMT_CCtx* mtctx);
 
-ZSTDLIB_API size_t ZSTDMT_sizeof_CCtx(ZSTDMT_CCtx* mtctx);
+ZSTDMT_API size_t ZSTDMT_sizeof_CCtx(ZSTDMT_CCtx* mtctx);
 
 
 /* ===   Simple one-pass compression function   === */
 
-ZSTDLIB_API size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* mtctx,
+ZSTDMT_API size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* mtctx,
                                        void* dst, size_t dstCapacity,
                                  const void* src, size_t srcSize,
                                        int compressionLevel);
@@ -59,31 +76,31 @@ ZSTDLIB_API size_t ZSTDMT_compressCCtx(ZSTDMT_CCtx* mtctx,
 
 /* ===   Streaming functions   === */
 
-ZSTDLIB_API size_t ZSTDMT_initCStream(ZSTDMT_CCtx* mtctx, int compressionLevel);
-ZSTDLIB_API size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* mtctx, unsigned long long pledgedSrcSize);  /**< if srcSize is not known at reset time, use ZSTD_CONTENTSIZE_UNKNOWN. Note: for compatibility with older programs, 0 means the same as ZSTD_CONTENTSIZE_UNKNOWN, but it will change in the future to mean "empty" */
+ZSTDMT_API size_t ZSTDMT_initCStream(ZSTDMT_CCtx* mtctx, int compressionLevel);
+ZSTDMT_API size_t ZSTDMT_resetCStream(ZSTDMT_CCtx* mtctx, unsigned long long pledgedSrcSize);  /**< if srcSize is not known at reset time, use ZSTD_CONTENTSIZE_UNKNOWN. Note: for compatibility with older programs, 0 means the same as ZSTD_CONTENTSIZE_UNKNOWN, but it will change in the future to mean "empty" */
 
-ZSTDLIB_API size_t ZSTDMT_nextInputSizeHint(const ZSTDMT_CCtx* mtctx);
-ZSTDLIB_API size_t ZSTDMT_compressStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
+ZSTDMT_API size_t ZSTDMT_nextInputSizeHint(const ZSTDMT_CCtx* mtctx);
+ZSTDMT_API size_t ZSTDMT_compressStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
 
-ZSTDLIB_API size_t ZSTDMT_flushStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output);   /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
-ZSTDLIB_API size_t ZSTDMT_endStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output);     /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
+ZSTDMT_API size_t ZSTDMT_flushStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output);   /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
+ZSTDMT_API size_t ZSTDMT_endStream(ZSTDMT_CCtx* mtctx, ZSTD_outBuffer* output);     /**< @return : 0 == all flushed; >0 : still some data to be flushed; or an error code (ZSTD_isError()) */
 
 
 /* ===   Advanced functions and parameters  === */
 
-ZSTDLIB_API size_t ZSTDMT_compress_advanced(ZSTDMT_CCtx* mtctx,
-                                           void* dst, size_t dstCapacity,
-                                     const void* src, size_t srcSize,
-                                     const ZSTD_CDict* cdict,
-                                           ZSTD_parameters params,
-                                           int overlapLog);
+ZSTDMT_API size_t ZSTDMT_compress_advanced(ZSTDMT_CCtx* mtctx,
+                                          void* dst, size_t dstCapacity,
+                                    const void* src, size_t srcSize,
+                                    const ZSTD_CDict* cdict,
+                                          ZSTD_parameters params,
+                                          int overlapLog);
 
-ZSTDLIB_API size_t ZSTDMT_initCStream_advanced(ZSTDMT_CCtx* mtctx,
+ZSTDMT_API size_t ZSTDMT_initCStream_advanced(ZSTDMT_CCtx* mtctx,
                                         const void* dict, size_t dictSize,   /* dict can be released after init, a local copy is preserved within zcs */
                                         ZSTD_parameters params,
                                         unsigned long long pledgedSrcSize);  /* pledgedSrcSize is optional and can be zero == unknown */
 
-ZSTDLIB_API size_t ZSTDMT_initCStream_usingCDict(ZSTDMT_CCtx* mtctx,
+ZSTDMT_API size_t ZSTDMT_initCStream_usingCDict(ZSTDMT_CCtx* mtctx,
                                         const ZSTD_CDict* cdict,
                                         ZSTD_frameParameters fparams,
                                         unsigned long long pledgedSrcSize);  /* note : zero means empty */
@@ -92,7 +109,7 @@ ZSTDLIB_API size_t ZSTDMT_initCStream_usingCDict(ZSTDMT_CCtx* mtctx,
  * List of parameters that can be set using ZSTDMT_setMTCtxParameter() */
 typedef enum {
     ZSTDMT_p_jobSize,     /* Each job is compressed in parallel. By default, this value is dynamically determined depending on compression parameters. Can be set explicitly here. */
-    ZSTDMT_p_overlapLog,  /* Each job may reload a part of previous job to enhance compressionr ratio; 0 == no overlap, 6(default) == use 1/8th of window, >=9 == use full window. This is a "sticky" parameter : its value will be re-used on next compression job */
+    ZSTDMT_p_overlapLog,  /* Each job may reload a part of previous job to enhance compression ratio; 0 == no overlap, 6(default) == use 1/8th of window, >=9 == use full window. This is a "sticky" parameter : its value will be re-used on next compression job */
     ZSTDMT_p_rsyncable    /* Enables rsyncable mode. */
 } ZSTDMT_parameter;
 
@@ -101,12 +118,12 @@ typedef enum {
  * The function must be called typically after ZSTD_createCCtx() but __before ZSTDMT_init*() !__
  * Parameters not explicitly reset by ZSTDMT_init*() remain the same in consecutive compression sessions.
  * @return : 0, or an error code (which can be tested using ZSTD_isError()) */
-ZSTDLIB_API size_t ZSTDMT_setMTCtxParameter(ZSTDMT_CCtx* mtctx, ZSTDMT_parameter parameter, int value);
+ZSTDMT_API size_t ZSTDMT_setMTCtxParameter(ZSTDMT_CCtx* mtctx, ZSTDMT_parameter parameter, int value);
 
 /* ZSTDMT_getMTCtxParameter() :
  * Query the ZSTDMT_CCtx for a parameter value.
  * @return : 0, or an error code (which can be tested using ZSTD_isError()) */
-ZSTDLIB_API size_t ZSTDMT_getMTCtxParameter(ZSTDMT_CCtx* mtctx, ZSTDMT_parameter parameter, int* value);
+ZSTDMT_API size_t ZSTDMT_getMTCtxParameter(ZSTDMT_CCtx* mtctx, ZSTDMT_parameter parameter, int* value);
 
 
 /*! ZSTDMT_compressStream_generic() :
@@ -116,7 +133,7 @@ ZSTDLIB_API size_t ZSTDMT_getMTCtxParameter(ZSTDMT_CCtx* mtctx, ZSTDMT_parameter
  *           0 if fully flushed
  *           or an error code
  *  note : needs to be init using any ZSTD_initCStream*() variant */
-ZSTDLIB_API size_t ZSTDMT_compressStream_generic(ZSTDMT_CCtx* mtctx,
+ZSTDMT_API size_t ZSTDMT_compressStream_generic(ZSTDMT_CCtx* mtctx,
                                                 ZSTD_outBuffer* output,
                                                 ZSTD_inBuffer* input,
                                                 ZSTD_EndDirective endOp);
diff --git a/thirdparty/zstd/decompress/zstd_ddict.c b/thirdparty/zstd/decompress/zstd_ddict.c
index 2ad0440684..0af3d23bfe 100644
--- a/thirdparty/zstd/decompress/zstd_ddict.c
+++ b/thirdparty/zstd/decompress/zstd_ddict.c
@@ -105,9 +105,9 @@ ZSTD_loadEntropy_intoDDict(ZSTD_DDict* ddict,
     ddict->dictID = MEM_readLE32((const char*)ddict->dictContent + ZSTD_FRAMEIDSIZE);
 
     /* load entropy tables */
-    CHECK_E( ZSTD_loadDEntropy(&ddict->entropy,
-                                ddict->dictContent, ddict->dictSize),
-             dictionary_corrupted );
+    RETURN_ERROR_IF(ZSTD_isError(ZSTD_loadDEntropy(
+            &ddict->entropy, ddict->dictContent, ddict->dictSize)),
+        dictionary_corrupted);
     ddict->entropyPresent = 1;
     return 0;
 }
@@ -133,7 +133,7 @@ static size_t ZSTD_initDDict_internal(ZSTD_DDict* ddict,
     ddict->entropy.hufTable[0] = (HUF_DTable)((HufLog)*0x1000001);  /* cover both little and big endian */
 
     /* parse dictionary content */
-    CHECK_F( ZSTD_loadEntropy_intoDDict(ddict, dictContentType) );
+    FORWARD_IF_ERROR( ZSTD_loadEntropy_intoDDict(ddict, dictContentType) );
 
     return 0;
 }
diff --git a/thirdparty/zstd/decompress/zstd_decompress.c b/thirdparty/zstd/decompress/zstd_decompress.c
index feef1ef67a..675596f5aa 100644
--- a/thirdparty/zstd/decompress/zstd_decompress.c
+++ b/thirdparty/zstd/decompress/zstd_decompress.c
@@ -106,6 +106,7 @@ static void ZSTD_initDCtx_internal(ZSTD_DCtx* dctx)
     dctx->ddictLocal  = NULL;
     dctx->dictEnd     = NULL;
     dctx->ddictIsCold = 0;
+    dctx->dictUses = ZSTD_dont_use;
     dctx->inBuff      = NULL;
     dctx->inBuffSize  = 0;
     dctx->outBuffSize = 0;
@@ -147,13 +148,20 @@ ZSTD_DCtx* ZSTD_createDCtx(void)
     return ZSTD_createDCtx_advanced(ZSTD_defaultCMem);
 }
 
+static void ZSTD_clearDict(ZSTD_DCtx* dctx)
+{
+    ZSTD_freeDDict(dctx->ddictLocal);
+    dctx->ddictLocal = NULL;
+    dctx->ddict = NULL;
+    dctx->dictUses = ZSTD_dont_use;
+}
+
 size_t ZSTD_freeDCtx(ZSTD_DCtx* dctx)
 {
     if (dctx==NULL) return 0;   /* support free on NULL */
-    if (dctx->staticSize) return ERROR(memory_allocation);   /* not compatible with static DCtx */
+    RETURN_ERROR_IF(dctx->staticSize, memory_allocation, "not compatible with static DCtx");
     {   ZSTD_customMem const cMem = dctx->customMem;
-        ZSTD_freeDDict(dctx->ddictLocal);
-        dctx->ddictLocal = NULL;
+        ZSTD_clearDict(dctx);
         ZSTD_free(dctx->inBuff, cMem);
         dctx->inBuff = NULL;
 #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT >= 1)
@@ -203,7 +211,7 @@ unsigned ZSTD_isFrame(const void* buffer, size_t size)
 static size_t ZSTD_frameHeaderSize_internal(const void* src, size_t srcSize, ZSTD_format_e format)
 {
     size_t const minInputSize = ZSTD_startingInputLength(format);
-    if (srcSize < minInputSize) return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(srcSize < minInputSize, srcSize_wrong);
 
     {   BYTE const fhd = ((const BYTE*)src)[minInputSize-1];
         U32 const dictID= fhd & 3;
@@ -238,7 +246,7 @@ size_t ZSTD_getFrameHeader_advanced(ZSTD_frameHeader* zfhPtr, const void* src, s
 
     memset(zfhPtr, 0, sizeof(*zfhPtr));   /* not strictly necessary, but static analyzer do not understand that zfhPtr is only going to be read only if return value is zero, since they are 2 different signals */
     if (srcSize < minInputSize) return minInputSize;
-    if (src==NULL) return ERROR(GENERIC);   /* invalid parameter */
+    RETURN_ERROR_IF(src==NULL, GENERIC, "invalid parameter");
 
     if ( (format != ZSTD_f_zstd1_magicless)
       && (MEM_readLE32(src) != ZSTD_MAGICNUMBER) ) {
@@ -251,7 +259,7 @@ size_t ZSTD_getFrameHeader_advanced(ZSTD_frameHeader* zfhPtr, const void* src, s
             zfhPtr->frameType = ZSTD_skippableFrame;
             return 0;
         }
-        return ERROR(prefix_unknown);
+        RETURN_ERROR(prefix_unknown);
     }
 
     /* ensure there is enough `srcSize` to fully read/decode frame header */
@@ -269,14 +277,13 @@ size_t ZSTD_getFrameHeader_advanced(ZSTD_frameHeader* zfhPtr, const void* src, s
         U64 windowSize = 0;
         U32 dictID = 0;
         U64 frameContentSize = ZSTD_CONTENTSIZE_UNKNOWN;
-        if ((fhdByte & 0x08) != 0)
-            return ERROR(frameParameter_unsupported); /* reserved bits, must be zero */
+        RETURN_ERROR_IF((fhdByte & 0x08) != 0, frameParameter_unsupported,
+                        "reserved bits, must be zero");
 
         if (!singleSegment) {
             BYTE const wlByte = ip[pos++];
             U32 const windowLog = (wlByte >> 3) + ZSTD_WINDOWLOG_ABSOLUTEMIN;
-            if (windowLog > ZSTD_WINDOWLOG_MAX)
-                return ERROR(frameParameter_windowTooLarge);
+            RETURN_ERROR_IF(windowLog > ZSTD_WINDOWLOG_MAX, frameParameter_windowTooLarge);
             windowSize = (1ULL << windowLog);
             windowSize += (windowSize >> 3) * (wlByte&7);
         }
@@ -348,12 +355,11 @@ static size_t readSkippableFrameSize(void const* src, size_t srcSize)
     size_t const skippableHeaderSize = ZSTD_SKIPPABLEHEADERSIZE;
     U32 sizeU32;
 
-    if (srcSize < ZSTD_SKIPPABLEHEADERSIZE)
-        return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(srcSize < ZSTD_SKIPPABLEHEADERSIZE, srcSize_wrong);
 
     sizeU32 = MEM_readLE32((BYTE const*)src + ZSTD_FRAMEIDSIZE);
-    if ((U32)(sizeU32 + ZSTD_SKIPPABLEHEADERSIZE) < sizeU32)
-        return ERROR(frameParameter_unsupported);
+    RETURN_ERROR_IF((U32)(sizeU32 + ZSTD_SKIPPABLEHEADERSIZE) < sizeU32,
+                    frameParameter_unsupported);
 
     return skippableHeaderSize + sizeU32;
 }
@@ -428,67 +434,124 @@ static size_t ZSTD_decodeFrameHeader(ZSTD_DCtx* dctx, const void* src, size_t he
 {
     size_t const result = ZSTD_getFrameHeader_advanced(&(dctx->fParams), src, headerSize, dctx->format);
     if (ZSTD_isError(result)) return result;    /* invalid header */
-    if (result>0) return ERROR(srcSize_wrong);  /* headerSize too small */
-    if (dctx->fParams.dictID && (dctx->dictID != dctx->fParams.dictID))
-        return ERROR(dictionary_wrong);
+    RETURN_ERROR_IF(result>0, srcSize_wrong, "headerSize too small");
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+    /* Skip the dictID check in fuzzing mode, because it makes the search
+     * harder.
+     */
+    RETURN_ERROR_IF(dctx->fParams.dictID && (dctx->dictID != dctx->fParams.dictID),
+                    dictionary_wrong);
+#endif
     if (dctx->fParams.checksumFlag) XXH64_reset(&dctx->xxhState, 0);
     return 0;
 }
 
+static ZSTD_frameSizeInfo ZSTD_errorFrameSizeInfo(size_t ret)
+{
+    ZSTD_frameSizeInfo frameSizeInfo;
+    frameSizeInfo.compressedSize = ret;
+    frameSizeInfo.decompressedBound = ZSTD_CONTENTSIZE_ERROR;
+    return frameSizeInfo;
+}
 
-/** ZSTD_findFrameCompressedSize() :
- *  compatible with legacy mode
- *  `src` must point to the start of a ZSTD frame, ZSTD legacy frame, or skippable frame
- *  `srcSize` must be at least as large as the frame contained
- *  @return : the compressed size of the frame starting at `src` */
-size_t ZSTD_findFrameCompressedSize(const void *src, size_t srcSize)
+static ZSTD_frameSizeInfo ZSTD_findFrameSizeInfo(const void* src, size_t srcSize)
 {
+    ZSTD_frameSizeInfo frameSizeInfo;
+    memset(&frameSizeInfo, 0, sizeof(ZSTD_frameSizeInfo));
+
 #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT >= 1)
     if (ZSTD_isLegacy(src, srcSize))
-        return ZSTD_findFrameCompressedSizeLegacy(src, srcSize);
+        return ZSTD_findFrameSizeInfoLegacy(src, srcSize);
 #endif
-    if ( (srcSize >= ZSTD_SKIPPABLEHEADERSIZE)
-      && (MEM_readLE32(src) & ZSTD_MAGIC_SKIPPABLE_MASK) == ZSTD_MAGIC_SKIPPABLE_START ) {
-        return readSkippableFrameSize(src, srcSize);
+
+    if ((srcSize >= ZSTD_SKIPPABLEHEADERSIZE)
+        && (MEM_readLE32(src) & ZSTD_MAGIC_SKIPPABLE_MASK) == ZSTD_MAGIC_SKIPPABLE_START) {
+        frameSizeInfo.compressedSize = readSkippableFrameSize(src, srcSize);
+        return frameSizeInfo;
     } else {
         const BYTE* ip = (const BYTE*)src;
         const BYTE* const ipstart = ip;
         size_t remainingSize = srcSize;
+        size_t nbBlocks = 0;
         ZSTD_frameHeader zfh;
 
         /* Extract Frame Header */
         {   size_t const ret = ZSTD_getFrameHeader(&zfh, src, srcSize);
-            if (ZSTD_isError(ret)) return ret;
-            if (ret > 0) return ERROR(srcSize_wrong);
+            if (ZSTD_isError(ret))
+                return ZSTD_errorFrameSizeInfo(ret);
+            if (ret > 0)
+                return ZSTD_errorFrameSizeInfo(ERROR(srcSize_wrong));
         }
 
         ip += zfh.headerSize;
         remainingSize -= zfh.headerSize;
 
-        /* Loop on each block */
+        /* Iterate over each block */
         while (1) {
             blockProperties_t blockProperties;
             size_t const cBlockSize = ZSTD_getcBlockSize(ip, remainingSize, &blockProperties);
-            if (ZSTD_isError(cBlockSize)) return cBlockSize;
+            if (ZSTD_isError(cBlockSize))
+                return ZSTD_errorFrameSizeInfo(cBlockSize);
 
             if (ZSTD_blockHeaderSize + cBlockSize > remainingSize)
-                return ERROR(srcSize_wrong);
+                return ZSTD_errorFrameSizeInfo(ERROR(srcSize_wrong));
 
             ip += ZSTD_blockHeaderSize + cBlockSize;
             remainingSize -= ZSTD_blockHeaderSize + cBlockSize;
+            nbBlocks++;
 
             if (blockProperties.lastBlock) break;
         }
 
-        if (zfh.checksumFlag) {   /* Final frame content checksum */
-            if (remainingSize < 4) return ERROR(srcSize_wrong);
+        /* Final frame content checksum */
+        if (zfh.checksumFlag) {
+            if (remainingSize < 4)
+                return ZSTD_errorFrameSizeInfo(ERROR(srcSize_wrong));
             ip += 4;
         }
 
-        return ip - ipstart;
+        frameSizeInfo.compressedSize = ip - ipstart;
+        frameSizeInfo.decompressedBound = (zfh.frameContentSize != ZSTD_CONTENTSIZE_UNKNOWN)
+                                        ? zfh.frameContentSize
+                                        : nbBlocks * zfh.blockSizeMax;
+        return frameSizeInfo;
     }
 }
 
+/** ZSTD_findFrameCompressedSize() :
+ *  compatible with legacy mode
+ *  `src` must point to the start of a ZSTD frame, ZSTD legacy frame, or skippable frame
+ *  `srcSize` must be at least as large as the frame contained
+ *  @return : the compressed size of the frame starting at `src` */
+size_t ZSTD_findFrameCompressedSize(const void *src, size_t srcSize)
+{
+    ZSTD_frameSizeInfo const frameSizeInfo = ZSTD_findFrameSizeInfo(src, srcSize);
+    return frameSizeInfo.compressedSize;
+}
+
+
+/** ZSTD_decompressBound() :
+ *  compatible with legacy mode
+ *  `src` must point to the start of a ZSTD frame or a skippeable frame
+ *  `srcSize` must be at least as large as the frame contained
+ *  @return : the maximum decompressed size of the compressed source
+ */
+unsigned long long ZSTD_decompressBound(const void* src, size_t srcSize)
+{
+    unsigned long long bound = 0;
+    /* Iterate over each frame */
+    while (srcSize > 0) {
+        ZSTD_frameSizeInfo const frameSizeInfo = ZSTD_findFrameSizeInfo(src, srcSize);
+        size_t const compressedSize = frameSizeInfo.compressedSize;
+        unsigned long long const decompressedBound = frameSizeInfo.decompressedBound;
+        if (ZSTD_isError(compressedSize) || decompressedBound == ZSTD_CONTENTSIZE_ERROR)
+            return ZSTD_CONTENTSIZE_ERROR;
+        src = (const BYTE*)src + compressedSize;
+        srcSize -= compressedSize;
+        bound += decompressedBound;
+    }
+    return bound;
+}
 
 
 /*-*************************************************************
@@ -522,9 +585,9 @@ static size_t ZSTD_copyRawBlock(void* dst, size_t dstCapacity,
     DEBUGLOG(5, "ZSTD_copyRawBlock");
     if (dst == NULL) {
         if (srcSize == 0) return 0;
-        return ERROR(dstBuffer_null);
+        RETURN_ERROR(dstBuffer_null);
     }
-    if (srcSize > dstCapacity) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF(srcSize > dstCapacity, dstSize_tooSmall);
     memcpy(dst, src, srcSize);
     return srcSize;
 }
@@ -535,9 +598,9 @@ static size_t ZSTD_setRleBlock(void* dst, size_t dstCapacity,
 {
     if (dst == NULL) {
         if (regenSize == 0) return 0;
-        return ERROR(dstBuffer_null);
+        RETURN_ERROR(dstBuffer_null);
     }
-    if (regenSize > dstCapacity) return ERROR(dstSize_tooSmall);
+    RETURN_ERROR_IF(regenSize > dstCapacity, dstSize_tooSmall);
     memset(dst, b, regenSize);
     return regenSize;
 }
@@ -560,15 +623,16 @@ static size_t ZSTD_decompressFrame(ZSTD_DCtx* dctx,
     DEBUGLOG(4, "ZSTD_decompressFrame (srcSize:%i)", (int)*srcSizePtr);
 
     /* check */
-    if (remainingSrcSize < ZSTD_FRAMEHEADERSIZE_MIN+ZSTD_blockHeaderSize)
-        return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(
+        remainingSrcSize < ZSTD_FRAMEHEADERSIZE_MIN+ZSTD_blockHeaderSize,
+        srcSize_wrong);
 
     /* Frame Header */
     {   size_t const frameHeaderSize = ZSTD_frameHeaderSize(ip, ZSTD_FRAMEHEADERSIZE_PREFIX);
         if (ZSTD_isError(frameHeaderSize)) return frameHeaderSize;
-        if (remainingSrcSize < frameHeaderSize+ZSTD_blockHeaderSize)
-            return ERROR(srcSize_wrong);
-        CHECK_F( ZSTD_decodeFrameHeader(dctx, ip, frameHeaderSize) );
+        RETURN_ERROR_IF(remainingSrcSize < frameHeaderSize+ZSTD_blockHeaderSize,
+                        srcSize_wrong);
+        FORWARD_IF_ERROR( ZSTD_decodeFrameHeader(dctx, ip, frameHeaderSize) );
         ip += frameHeaderSize; remainingSrcSize -= frameHeaderSize;
     }
 
@@ -581,7 +645,7 @@ static size_t ZSTD_decompressFrame(ZSTD_DCtx* dctx,
 
         ip += ZSTD_blockHeaderSize;
         remainingSrcSize -= ZSTD_blockHeaderSize;
-        if (cBlockSize > remainingSrcSize) return ERROR(srcSize_wrong);
+        RETURN_ERROR_IF(cBlockSize > remainingSrcSize, srcSize_wrong);
 
         switch(blockProperties.blockType)
         {
@@ -596,7 +660,7 @@ static size_t ZSTD_decompressFrame(ZSTD_DCtx* dctx,
             break;
         case bt_reserved :
         default:
-            return ERROR(corruption_detected);
+            RETURN_ERROR(corruption_detected);
         }
 
         if (ZSTD_isError(decodedSize)) return decodedSize;
@@ -609,15 +673,15 @@ static size_t ZSTD_decompressFrame(ZSTD_DCtx* dctx,
     }
 
     if (dctx->fParams.frameContentSize != ZSTD_CONTENTSIZE_UNKNOWN) {
-        if ((U64)(op-ostart) != dctx->fParams.frameContentSize) {
-            return ERROR(corruption_detected);
-    }   }
+        RETURN_ERROR_IF((U64)(op-ostart) != dctx->fParams.frameContentSize,
+                        corruption_detected);
+    }
     if (dctx->fParams.checksumFlag) { /* Frame content checksum verification */
         U32 const checkCalc = (U32)XXH64_digest(&dctx->xxhState);
         U32 checkRead;
-        if (remainingSrcSize<4) return ERROR(checksum_wrong);
+        RETURN_ERROR_IF(remainingSrcSize<4, checksum_wrong);
         checkRead = MEM_readLE32(ip);
-        if (checkRead != checkCalc) return ERROR(checksum_wrong);
+        RETURN_ERROR_IF(checkRead != checkCalc, checksum_wrong);
         ip += 4;
         remainingSrcSize -= 4;
     }
@@ -652,8 +716,8 @@ static size_t ZSTD_decompressMultiFrame(ZSTD_DCtx* dctx,
             size_t decodedSize;
             size_t const frameSize = ZSTD_findFrameCompressedSizeLegacy(src, srcSize);
             if (ZSTD_isError(frameSize)) return frameSize;
-            /* legacy support is not compatible with static dctx */
-            if (dctx->staticSize) return ERROR(memory_allocation);
+            RETURN_ERROR_IF(dctx->staticSize, memory_allocation,
+                "legacy support is not compatible with static dctx");
 
             decodedSize = ZSTD_decompressLegacy(dst, dstCapacity, src, frameSize, dict, dictSize);
             if (ZSTD_isError(decodedSize)) return decodedSize;
@@ -676,7 +740,7 @@ static size_t ZSTD_decompressMultiFrame(ZSTD_DCtx* dctx,
                 size_t const skippableSize = readSkippableFrameSize(src, srcSize);
                 if (ZSTD_isError(skippableSize))
                     return skippableSize;
-                if (srcSize < skippableSize) return ERROR(srcSize_wrong);
+                RETURN_ERROR_IF(srcSize < skippableSize, srcSize_wrong);
 
                 src = (const BYTE *)src + skippableSize;
                 srcSize -= skippableSize;
@@ -685,29 +749,29 @@ static size_t ZSTD_decompressMultiFrame(ZSTD_DCtx* dctx,
 
         if (ddict) {
             /* we were called from ZSTD_decompress_usingDDict */
-            CHECK_F(ZSTD_decompressBegin_usingDDict(dctx, ddict));
+            FORWARD_IF_ERROR(ZSTD_decompressBegin_usingDDict(dctx, ddict));
         } else {
             /* this will initialize correctly with no dict if dict == NULL, so
              * use this in all cases but ddict */
-            CHECK_F(ZSTD_decompressBegin_usingDict(dctx, dict, dictSize));
+            FORWARD_IF_ERROR(ZSTD_decompressBegin_usingDict(dctx, dict, dictSize));
         }
         ZSTD_checkContinuity(dctx, dst);
 
         {   const size_t res = ZSTD_decompressFrame(dctx, dst, dstCapacity,
                                                     &src, &srcSize);
-            if ( (ZSTD_getErrorCode(res) == ZSTD_error_prefix_unknown)
-              && (moreThan1Frame==1) ) {
-                /* at least one frame successfully completed,
-                 * but following bytes are garbage :
-                 * it's more likely to be a srcSize error,
-                 * specifying more bytes than compressed size of frame(s).
-                 * This error message replaces ERROR(prefix_unknown),
-                 * which would be confusing, as the first header is actually correct.
-                 * Note that one could be unlucky, it might be a corruption error instead,
-                 * happening right at the place where we expect zstd magic bytes.
-                 * But this is _much_ less likely than a srcSize field error. */
-                return ERROR(srcSize_wrong);
-            }
+            RETURN_ERROR_IF(
+                (ZSTD_getErrorCode(res) == ZSTD_error_prefix_unknown)
+             && (moreThan1Frame==1),
+                srcSize_wrong,
+                "at least one frame successfully completed, but following "
+                "bytes are garbage: it's more likely to be a srcSize error, "
+                "specifying more bytes than compressed size of frame(s). This "
+                "error message replaces ERROR(prefix_unknown), which would be "
+                "confusing, as the first header is actually correct. Note that "
+                "one could be unlucky, it might be a corruption error instead, "
+                "happening right at the place where we expect zstd magic "
+                "bytes. But this is _much_ less likely than a srcSize field "
+                "error.");
             if (ZSTD_isError(res)) return res;
             assert(res <= dstCapacity);
             dst = (BYTE*)dst + res;
@@ -716,7 +780,7 @@ static size_t ZSTD_decompressMultiFrame(ZSTD_DCtx* dctx,
         moreThan1Frame = 1;
     }  /* while (srcSize >= ZSTD_frameHeaderSize_prefix) */
 
-    if (srcSize) return ERROR(srcSize_wrong); /* input not entirely consumed */
+    RETURN_ERROR_IF(srcSize, srcSize_wrong, "input not entirely consumed");
 
     return (BYTE*)dst - (BYTE*)dststart;
 }
@@ -730,9 +794,26 @@ size_t ZSTD_decompress_usingDict(ZSTD_DCtx* dctx,
 }
 
 
+static ZSTD_DDict const* ZSTD_getDDict(ZSTD_DCtx* dctx)
+{
+    switch (dctx->dictUses) {
+    default:
+        assert(0 /* Impossible */);
+        /* fall-through */
+    case ZSTD_dont_use:
+        ZSTD_clearDict(dctx);
+        return NULL;
+    case ZSTD_use_indefinitely:
+        return dctx->ddict;
+    case ZSTD_use_once:
+        dctx->dictUses = ZSTD_dont_use;
+        return dctx->ddict;
+    }
+}
+
 size_t ZSTD_decompressDCtx(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, const void* src, size_t srcSize)
 {
-    return ZSTD_decompress_usingDict(dctx, dst, dstCapacity, src, srcSize, NULL, 0);
+    return ZSTD_decompress_usingDDict(dctx, dst, dstCapacity, src, srcSize, ZSTD_getDDict(dctx));
 }
 
 
@@ -741,7 +822,7 @@ size_t ZSTD_decompress(void* dst, size_t dstCapacity, const void* src, size_t sr
 #if defined(ZSTD_HEAPMODE) && (ZSTD_HEAPMODE>=1)
     size_t regenSize;
     ZSTD_DCtx* const dctx = ZSTD_createDCtx();
-    if (dctx==NULL) return ERROR(memory_allocation);
+    RETURN_ERROR_IF(dctx==NULL, memory_allocation);
     regenSize = ZSTD_decompressDCtx(dctx, dst, dstCapacity, src, srcSize);
     ZSTD_freeDCtx(dctx);
     return regenSize;
@@ -791,8 +872,7 @@ size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, c
 {
     DEBUGLOG(5, "ZSTD_decompressContinue (srcSize:%u)", (unsigned)srcSize);
     /* Sanity check */
-    if (srcSize != dctx->expected)
-        return ERROR(srcSize_wrong);  /* not allowed */
+    RETURN_ERROR_IF(srcSize != dctx->expected, srcSize_wrong, "not allowed");
     if (dstCapacity) ZSTD_checkContinuity(dctx, dst);
 
     switch (dctx->stage)
@@ -817,7 +897,7 @@ size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, c
     case ZSTDds_decodeFrameHeader:
         assert(src != NULL);
         memcpy(dctx->headerBuffer + (dctx->headerSize - srcSize), src, srcSize);
-        CHECK_F(ZSTD_decodeFrameHeader(dctx, dctx->headerBuffer, dctx->headerSize));
+        FORWARD_IF_ERROR(ZSTD_decodeFrameHeader(dctx, dctx->headerBuffer, dctx->headerSize));
         dctx->expected = ZSTD_blockHeaderSize;
         dctx->stage = ZSTDds_decodeBlockHeader;
         return 0;
@@ -867,7 +947,7 @@ size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, c
                 break;
             case bt_reserved :   /* should never happen */
             default:
-                return ERROR(corruption_detected);
+                RETURN_ERROR(corruption_detected);
             }
             if (ZSTD_isError(rSize)) return rSize;
             DEBUGLOG(5, "ZSTD_decompressContinue: decoded size from block : %u", (unsigned)rSize);
@@ -876,10 +956,10 @@ size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, c
 
             if (dctx->stage == ZSTDds_decompressLastBlock) {   /* end of frame */
                 DEBUGLOG(4, "ZSTD_decompressContinue: decoded size from frame : %u", (unsigned)dctx->decodedSize);
-                if (dctx->fParams.frameContentSize != ZSTD_CONTENTSIZE_UNKNOWN) {
-                    if (dctx->decodedSize != dctx->fParams.frameContentSize) {
-                        return ERROR(corruption_detected);
-                }   }
+                RETURN_ERROR_IF(
+                    dctx->fParams.frameContentSize != ZSTD_CONTENTSIZE_UNKNOWN
+                 && dctx->decodedSize != dctx->fParams.frameContentSize,
+                    corruption_detected);
                 if (dctx->fParams.checksumFlag) {  /* another round for frame checksum */
                     dctx->expected = 4;
                     dctx->stage = ZSTDds_checkChecksum;
@@ -900,7 +980,7 @@ size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, c
         {   U32 const h32 = (U32)XXH64_digest(&dctx->xxhState);
             U32 const check32 = MEM_readLE32(src);
             DEBUGLOG(4, "ZSTD_decompressContinue: checksum : calculated %08X :: %08X read", (unsigned)h32, (unsigned)check32);
-            if (check32 != h32) return ERROR(checksum_wrong);
+            RETURN_ERROR_IF(check32 != h32, checksum_wrong);
             dctx->expected = 0;
             dctx->stage = ZSTDds_getFrameHeaderSize;
             return 0;
@@ -921,7 +1001,7 @@ size_t ZSTD_decompressContinue(ZSTD_DCtx* dctx, void* dst, size_t dstCapacity, c
 
     default:
         assert(0);   /* impossible */
-        return ERROR(GENERIC);   /* some compiler require default to do something */
+        RETURN_ERROR(GENERIC);   /* some compiler require default to do something */
     }
 }
 
@@ -945,7 +1025,7 @@ ZSTD_loadDEntropy(ZSTD_entropyDTables_t* entropy,
     const BYTE* dictPtr = (const BYTE*)dict;
     const BYTE* const dictEnd = dictPtr + dictSize;
 
-    if (dictSize <= 8) return ERROR(dictionary_corrupted);
+    RETURN_ERROR_IF(dictSize <= 8, dictionary_corrupted);
     assert(MEM_readLE32(dict) == ZSTD_MAGIC_DICTIONARY);   /* dict must be valid */
     dictPtr += 8;   /* skip header = magic + dictID */
 
@@ -964,16 +1044,16 @@ ZSTD_loadDEntropy(ZSTD_entropyDTables_t* entropy,
                                                 dictPtr, dictEnd - dictPtr,
                                                 workspace, workspaceSize);
 #endif
-        if (HUF_isError(hSize)) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(HUF_isError(hSize), dictionary_corrupted);
         dictPtr += hSize;
     }
 
     {   short offcodeNCount[MaxOff+1];
         unsigned offcodeMaxValue = MaxOff, offcodeLog;
         size_t const offcodeHeaderSize = FSE_readNCount(offcodeNCount, &offcodeMaxValue, &offcodeLog, dictPtr, dictEnd-dictPtr);
-        if (FSE_isError(offcodeHeaderSize)) return ERROR(dictionary_corrupted);
-        if (offcodeMaxValue > MaxOff) return ERROR(dictionary_corrupted);
-        if (offcodeLog > OffFSELog) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(offcodeHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(offcodeMaxValue > MaxOff, dictionary_corrupted);
+        RETURN_ERROR_IF(offcodeLog > OffFSELog, dictionary_corrupted);
         ZSTD_buildFSETable( entropy->OFTable,
                             offcodeNCount, offcodeMaxValue,
                             OF_base, OF_bits,
@@ -984,9 +1064,9 @@ ZSTD_loadDEntropy(ZSTD_entropyDTables_t* entropy,
     {   short matchlengthNCount[MaxML+1];
         unsigned matchlengthMaxValue = MaxML, matchlengthLog;
         size_t const matchlengthHeaderSize = FSE_readNCount(matchlengthNCount, &matchlengthMaxValue, &matchlengthLog, dictPtr, dictEnd-dictPtr);
-        if (FSE_isError(matchlengthHeaderSize)) return ERROR(dictionary_corrupted);
-        if (matchlengthMaxValue > MaxML) return ERROR(dictionary_corrupted);
-        if (matchlengthLog > MLFSELog) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(matchlengthHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(matchlengthMaxValue > MaxML, dictionary_corrupted);
+        RETURN_ERROR_IF(matchlengthLog > MLFSELog, dictionary_corrupted);
         ZSTD_buildFSETable( entropy->MLTable,
                             matchlengthNCount, matchlengthMaxValue,
                             ML_base, ML_bits,
@@ -997,9 +1077,9 @@ ZSTD_loadDEntropy(ZSTD_entropyDTables_t* entropy,
     {   short litlengthNCount[MaxLL+1];
         unsigned litlengthMaxValue = MaxLL, litlengthLog;
         size_t const litlengthHeaderSize = FSE_readNCount(litlengthNCount, &litlengthMaxValue, &litlengthLog, dictPtr, dictEnd-dictPtr);
-        if (FSE_isError(litlengthHeaderSize)) return ERROR(dictionary_corrupted);
-        if (litlengthMaxValue > MaxLL) return ERROR(dictionary_corrupted);
-        if (litlengthLog > LLFSELog) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(FSE_isError(litlengthHeaderSize), dictionary_corrupted);
+        RETURN_ERROR_IF(litlengthMaxValue > MaxLL, dictionary_corrupted);
+        RETURN_ERROR_IF(litlengthLog > LLFSELog, dictionary_corrupted);
         ZSTD_buildFSETable( entropy->LLTable,
                             litlengthNCount, litlengthMaxValue,
                             LL_base, LL_bits,
@@ -1007,12 +1087,13 @@ ZSTD_loadDEntropy(ZSTD_entropyDTables_t* entropy,
         dictPtr += litlengthHeaderSize;
     }
 
-    if (dictPtr+12 > dictEnd) return ERROR(dictionary_corrupted);
+    RETURN_ERROR_IF(dictPtr+12 > dictEnd, dictionary_corrupted);
     {   int i;
         size_t const dictContentSize = (size_t)(dictEnd - (dictPtr+12));
         for (i=0; i<3; i++) {
             U32 const rep = MEM_readLE32(dictPtr); dictPtr += 4;
-            if (rep==0 || rep >= dictContentSize) return ERROR(dictionary_corrupted);
+            RETURN_ERROR_IF(rep==0 || rep >= dictContentSize,
+                            dictionary_corrupted);
             entropy->rep[i] = rep;
     }   }
 
@@ -1030,7 +1111,7 @@ static size_t ZSTD_decompress_insertDictionary(ZSTD_DCtx* dctx, const void* dict
 
     /* load entropy tables */
     {   size_t const eSize = ZSTD_loadDEntropy(&dctx->entropy, dict, dictSize);
-        if (ZSTD_isError(eSize)) return ERROR(dictionary_corrupted);
+        RETURN_ERROR_IF(ZSTD_isError(eSize), dictionary_corrupted);
         dict = (const char*)dict + eSize;
         dictSize -= eSize;
     }
@@ -1064,9 +1145,11 @@ size_t ZSTD_decompressBegin(ZSTD_DCtx* dctx)
 
 size_t ZSTD_decompressBegin_usingDict(ZSTD_DCtx* dctx, const void* dict, size_t dictSize)
 {
-    CHECK_F( ZSTD_decompressBegin(dctx) );
+    FORWARD_IF_ERROR( ZSTD_decompressBegin(dctx) );
     if (dict && dictSize)
-        CHECK_E(ZSTD_decompress_insertDictionary(dctx, dict, dictSize), dictionary_corrupted);
+        RETURN_ERROR_IF(
+            ZSTD_isError(ZSTD_decompress_insertDictionary(dctx, dict, dictSize)),
+            dictionary_corrupted);
     return 0;
 }
 
@@ -1085,7 +1168,7 @@ size_t ZSTD_decompressBegin_usingDDict(ZSTD_DCtx* dctx, const ZSTD_DDict* ddict)
         DEBUGLOG(4, "DDict is %s",
                     dctx->ddictIsCold ? "~cold~" : "hot!");
     }
-    CHECK_F( ZSTD_decompressBegin(dctx) );
+    FORWARD_IF_ERROR( ZSTD_decompressBegin(dctx) );
     if (ddict) {   /* NULL ddict is equivalent to no dictionary */
         ZSTD_copyDDictParameters(dctx, ddict);
     }
@@ -1104,7 +1187,7 @@ unsigned ZSTD_getDictID_fromDict(const void* dict, size_t dictSize)
 }
 
 /*! ZSTD_getDictID_fromFrame() :
- *  Provides the dictID required to decompresse frame stored within `src`.
+ *  Provides the dictID required to decompress frame stored within `src`.
  *  If @return == 0, the dictID could not be decoded.
  *  This could for one of the following reasons :
  *  - The frame does not require a dictionary (most common case).
@@ -1176,15 +1259,14 @@ size_t ZSTD_DCtx_loadDictionary_advanced(ZSTD_DCtx* dctx,
                                          ZSTD_dictLoadMethod_e dictLoadMethod,
                                          ZSTD_dictContentType_e dictContentType)
 {
-    if (dctx->streamStage != zdss_init) return ERROR(stage_wrong);
-    ZSTD_freeDDict(dctx->ddictLocal);
+    RETURN_ERROR_IF(dctx->streamStage != zdss_init, stage_wrong);
+    ZSTD_clearDict(dctx);
     if (dict && dictSize >= 8) {
         dctx->ddictLocal = ZSTD_createDDict_advanced(dict, dictSize, dictLoadMethod, dictContentType, dctx->customMem);
-        if (dctx->ddictLocal == NULL) return ERROR(memory_allocation);
-    } else {
-        dctx->ddictLocal = NULL;
+        RETURN_ERROR_IF(dctx->ddictLocal == NULL, memory_allocation);
+        dctx->ddict = dctx->ddictLocal;
+        dctx->dictUses = ZSTD_use_indefinitely;
     }
-    dctx->ddict = dctx->ddictLocal;
     return 0;
 }
 
@@ -1200,7 +1282,9 @@ size_t ZSTD_DCtx_loadDictionary(ZSTD_DCtx* dctx, const void* dict, size_t dictSi
 
 size_t ZSTD_DCtx_refPrefix_advanced(ZSTD_DCtx* dctx, const void* prefix, size_t prefixSize, ZSTD_dictContentType_e dictContentType)
 {
-    return ZSTD_DCtx_loadDictionary_advanced(dctx, prefix, prefixSize, ZSTD_dlm_byRef, dictContentType);
+    FORWARD_IF_ERROR(ZSTD_DCtx_loadDictionary_advanced(dctx, prefix, prefixSize, ZSTD_dlm_byRef, dictContentType));
+    dctx->dictUses = ZSTD_use_once;
+    return 0;
 }
 
 size_t ZSTD_DCtx_refPrefix(ZSTD_DCtx* dctx, const void* prefix, size_t prefixSize)
@@ -1215,9 +1299,8 @@ size_t ZSTD_DCtx_refPrefix(ZSTD_DCtx* dctx, const void* prefix, size_t prefixSiz
 size_t ZSTD_initDStream_usingDict(ZSTD_DStream* zds, const void* dict, size_t dictSize)
 {
     DEBUGLOG(4, "ZSTD_initDStream_usingDict");
-    zds->streamStage = zdss_init;
-    zds->noForwardProgress = 0;
-    CHECK_F( ZSTD_DCtx_loadDictionary(zds, dict, dictSize) );
+    FORWARD_IF_ERROR( ZSTD_DCtx_reset(zds, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_DCtx_loadDictionary(zds, dict, dictSize) );
     return ZSTD_FRAMEHEADERSIZE_PREFIX;
 }
 
@@ -1225,7 +1308,7 @@ size_t ZSTD_initDStream_usingDict(ZSTD_DStream* zds, const void* dict, size_t di
 size_t ZSTD_initDStream(ZSTD_DStream* zds)
 {
     DEBUGLOG(4, "ZSTD_initDStream");
-    return ZSTD_initDStream_usingDict(zds, NULL, 0);
+    return ZSTD_initDStream_usingDDict(zds, NULL);
 }
 
 /* ZSTD_initDStream_usingDDict() :
@@ -1233,9 +1316,9 @@ size_t ZSTD_initDStream(ZSTD_DStream* zds)
  * this function cannot fail */
 size_t ZSTD_initDStream_usingDDict(ZSTD_DStream* dctx, const ZSTD_DDict* ddict)
 {
-    size_t const initResult = ZSTD_initDStream(dctx);
-    dctx->ddict = ddict;
-    return initResult;
+    FORWARD_IF_ERROR( ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only) );
+    FORWARD_IF_ERROR( ZSTD_DCtx_refDDict(dctx, ddict) );
+    return ZSTD_FRAMEHEADERSIZE_PREFIX;
 }
 
 /* ZSTD_resetDStream() :
@@ -1243,19 +1326,19 @@ size_t ZSTD_initDStream_usingDDict(ZSTD_DStream* dctx, const ZSTD_DDict* ddict)
  * this function cannot fail */
 size_t ZSTD_resetDStream(ZSTD_DStream* dctx)
 {
-    DEBUGLOG(4, "ZSTD_resetDStream");
-    dctx->streamStage = zdss_loadHeader;
-    dctx->lhSize = dctx->inPos = dctx->outStart = dctx->outEnd = 0;
-    dctx->legacyVersion = 0;
-    dctx->hostageByte = 0;
+    FORWARD_IF_ERROR(ZSTD_DCtx_reset(dctx, ZSTD_reset_session_only));
     return ZSTD_FRAMEHEADERSIZE_PREFIX;
 }
 
 
 size_t ZSTD_DCtx_refDDict(ZSTD_DCtx* dctx, const ZSTD_DDict* ddict)
 {
-    if (dctx->streamStage != zdss_init) return ERROR(stage_wrong);
-    dctx->ddict = ddict;
+    RETURN_ERROR_IF(dctx->streamStage != zdss_init, stage_wrong);
+    ZSTD_clearDict(dctx);
+    if (ddict) {
+        dctx->ddict = ddict;
+        dctx->dictUses = ZSTD_use_indefinitely;
+    }
     return 0;
 }
 
@@ -1267,9 +1350,9 @@ size_t ZSTD_DCtx_setMaxWindowSize(ZSTD_DCtx* dctx, size_t maxWindowSize)
     ZSTD_bounds const bounds = ZSTD_dParam_getBounds(ZSTD_d_windowLogMax);
     size_t const min = (size_t)1 << bounds.lowerBound;
     size_t const max = (size_t)1 << bounds.upperBound;
-    if (dctx->streamStage != zdss_init) return ERROR(stage_wrong);
-    if (maxWindowSize < min) return ERROR(parameter_outOfBound);
-    if (maxWindowSize > max) return ERROR(parameter_outOfBound);
+    RETURN_ERROR_IF(dctx->streamStage != zdss_init, stage_wrong);
+    RETURN_ERROR_IF(maxWindowSize < min, parameter_outOfBound);
+    RETURN_ERROR_IF(maxWindowSize > max, parameter_outOfBound);
     dctx->maxWindowSize = maxWindowSize;
     return 0;
 }
@@ -1311,15 +1394,15 @@ static int ZSTD_dParam_withinBounds(ZSTD_dParameter dParam, int value)
 }
 
 #define CHECK_DBOUNDS(p,v) {                \
-    if (!ZSTD_dParam_withinBounds(p, v))    \
-        return ERROR(parameter_outOfBound); \
+    RETURN_ERROR_IF(!ZSTD_dParam_withinBounds(p, v), parameter_outOfBound); \
 }
 
 size_t ZSTD_DCtx_setParameter(ZSTD_DCtx* dctx, ZSTD_dParameter dParam, int value)
 {
-    if (dctx->streamStage != zdss_init) return ERROR(stage_wrong);
+    RETURN_ERROR_IF(dctx->streamStage != zdss_init, stage_wrong);
     switch(dParam) {
         case ZSTD_d_windowLogMax:
+            if (value == 0) value = ZSTD_WINDOWLOG_LIMIT_DEFAULT;
             CHECK_DBOUNDS(ZSTD_d_windowLogMax, value);
             dctx->maxWindowSize = ((size_t)1) << value;
             return 0;
@@ -1329,19 +1412,20 @@ size_t ZSTD_DCtx_setParameter(ZSTD_DCtx* dctx, ZSTD_dParameter dParam, int value
             return 0;
         default:;
     }
-    return ERROR(parameter_unsupported);
+    RETURN_ERROR(parameter_unsupported);
 }
 
 size_t ZSTD_DCtx_reset(ZSTD_DCtx* dctx, ZSTD_ResetDirective reset)
 {
     if ( (reset == ZSTD_reset_session_only)
       || (reset == ZSTD_reset_session_and_parameters) ) {
-        (void)ZSTD_initDStream(dctx);
+        dctx->streamStage = zdss_init;
+        dctx->noForwardProgress = 0;
     }
     if ( (reset == ZSTD_reset_parameters)
       || (reset == ZSTD_reset_session_and_parameters) ) {
-        if (dctx->streamStage != zdss_init)
-            return ERROR(stage_wrong);
+        RETURN_ERROR_IF(dctx->streamStage != zdss_init, stage_wrong);
+        ZSTD_clearDict(dctx);
         dctx->format = ZSTD_f_zstd1;
         dctx->maxWindowSize = ZSTD_MAXWINDOWSIZE_DEFAULT;
     }
@@ -1360,7 +1444,8 @@ size_t ZSTD_decodingBufferSize_min(unsigned long long windowSize, unsigned long
     unsigned long long const neededRBSize = windowSize + blockSize + (WILDCOPY_OVERLENGTH * 2);
     unsigned long long const neededSize = MIN(frameContentSize, neededRBSize);
     size_t const minRBSize = (size_t) neededSize;
-    if ((unsigned long long)minRBSize != neededSize) return ERROR(frameParameter_windowTooLarge);
+    RETURN_ERROR_IF((unsigned long long)minRBSize != neededSize,
+                    frameParameter_windowTooLarge);
     return minRBSize;
 }
 
@@ -1378,9 +1463,9 @@ size_t ZSTD_estimateDStreamSize_fromFrame(const void* src, size_t srcSize)
     ZSTD_frameHeader zfh;
     size_t const err = ZSTD_getFrameHeader(&zfh, src, srcSize);
     if (ZSTD_isError(err)) return err;
-    if (err>0) return ERROR(srcSize_wrong);
-    if (zfh.windowSize > windowSizeMax)
-        return ERROR(frameParameter_windowTooLarge);
+    RETURN_ERROR_IF(err>0, srcSize_wrong);
+    RETURN_ERROR_IF(zfh.windowSize > windowSizeMax,
+                    frameParameter_windowTooLarge);
     return ZSTD_estimateDStreamSize((size_t)zfh.windowSize);
 }
 
@@ -1406,16 +1491,16 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
     U32 someMoreWork = 1;
 
     DEBUGLOG(5, "ZSTD_decompressStream");
-    if (input->pos > input->size) {  /* forbidden */
-        DEBUGLOG(5, "in: pos: %u   vs size: %u",
-                    (U32)input->pos, (U32)input->size);
-        return ERROR(srcSize_wrong);
-    }
-    if (output->pos > output->size) {  /* forbidden */
-        DEBUGLOG(5, "out: pos: %u   vs size: %u",
-                    (U32)output->pos, (U32)output->size);
-        return ERROR(dstSize_tooSmall);
-    }
+    RETURN_ERROR_IF(
+        input->pos > input->size,
+        srcSize_wrong,
+        "forbidden. in: pos: %u   vs size: %u",
+        (U32)input->pos, (U32)input->size);
+    RETURN_ERROR_IF(
+        output->pos > output->size,
+        dstSize_tooSmall,
+        "forbidden. out: pos: %u   vs size: %u",
+        (U32)output->pos, (U32)output->size);
     DEBUGLOG(5, "input size : %u", (U32)(input->size - input->pos));
 
     while (someMoreWork) {
@@ -1423,15 +1508,18 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
         {
         case zdss_init :
             DEBUGLOG(5, "stage zdss_init => transparent reset ");
-            ZSTD_resetDStream(zds);   /* transparent reset on starting decoding a new frame */
+            zds->streamStage = zdss_loadHeader;
+            zds->lhSize = zds->inPos = zds->outStart = zds->outEnd = 0;
+            zds->legacyVersion = 0;
+            zds->hostageByte = 0;
             /* fall-through */
 
         case zdss_loadHeader :
             DEBUGLOG(5, "stage zdss_loadHeader (srcSize : %u)", (U32)(iend - ip));
 #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT>=1)
             if (zds->legacyVersion) {
-                /* legacy support is incompatible with static dctx */
-                if (zds->staticSize) return ERROR(memory_allocation);
+                RETURN_ERROR_IF(zds->staticSize, memory_allocation,
+                    "legacy support is incompatible with static dctx");
                 {   size_t const hint = ZSTD_decompressLegacyStream(zds->legacyContext, zds->legacyVersion, output, input);
                     if (hint==0) zds->streamStage = zdss_init;
                     return hint;
@@ -1443,12 +1531,13 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
 #if defined(ZSTD_LEGACY_SUPPORT) && (ZSTD_LEGACY_SUPPORT>=1)
                     U32 const legacyVersion = ZSTD_isLegacy(istart, iend-istart);
                     if (legacyVersion) {
-                        const void* const dict = zds->ddict ? ZSTD_DDict_dictContent(zds->ddict) : NULL;
-                        size_t const dictSize = zds->ddict ? ZSTD_DDict_dictSize(zds->ddict) : 0;
+                        ZSTD_DDict const* const ddict = ZSTD_getDDict(zds);
+                        const void* const dict = ddict ? ZSTD_DDict_dictContent(ddict) : NULL;
+                        size_t const dictSize = ddict ? ZSTD_DDict_dictSize(ddict) : 0;
                         DEBUGLOG(5, "ZSTD_decompressStream: detected legacy version v0.%u", legacyVersion);
-                        /* legacy support is incompatible with static dctx */
-                        if (zds->staticSize) return ERROR(memory_allocation);
-                        CHECK_F(ZSTD_initLegacyStream(&zds->legacyContext,
+                        RETURN_ERROR_IF(zds->staticSize, memory_allocation,
+                            "legacy support is incompatible with static dctx");
+                        FORWARD_IF_ERROR(ZSTD_initLegacyStream(&zds->legacyContext,
                                     zds->previousLegacyVersion, legacyVersion,
                                     dict, dictSize));
                         zds->legacyVersion = zds->previousLegacyVersion = legacyVersion;
@@ -1482,7 +1571,7 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
                 size_t const cSize = ZSTD_findFrameCompressedSize(istart, iend-istart);
                 if (cSize <= (size_t)(iend-istart)) {
                     /* shortcut : using single-pass mode */
-                    size_t const decompressedSize = ZSTD_decompress_usingDDict(zds, op, oend-op, istart, cSize, zds->ddict);
+                    size_t const decompressedSize = ZSTD_decompress_usingDDict(zds, op, oend-op, istart, cSize, ZSTD_getDDict(zds));
                     if (ZSTD_isError(decompressedSize)) return decompressedSize;
                     DEBUGLOG(4, "shortcut to single-pass ZSTD_decompress_usingDDict()")
                     ip = istart + cSize;
@@ -1495,13 +1584,13 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
 
             /* Consume header (see ZSTDds_decodeFrameHeader) */
             DEBUGLOG(4, "Consume header");
-            CHECK_F(ZSTD_decompressBegin_usingDDict(zds, zds->ddict));
+            FORWARD_IF_ERROR(ZSTD_decompressBegin_usingDDict(zds, ZSTD_getDDict(zds)));
 
             if ((MEM_readLE32(zds->headerBuffer) & ZSTD_MAGIC_SKIPPABLE_MASK) == ZSTD_MAGIC_SKIPPABLE_START) {  /* skippable frame */
                 zds->expected = MEM_readLE32(zds->headerBuffer + ZSTD_FRAMEIDSIZE);
                 zds->stage = ZSTDds_skipFrame;
             } else {
-                CHECK_F(ZSTD_decodeFrameHeader(zds, zds->headerBuffer, zds->lhSize));
+                FORWARD_IF_ERROR(ZSTD_decodeFrameHeader(zds, zds->headerBuffer, zds->lhSize));
                 zds->expected = ZSTD_blockHeaderSize;
                 zds->stage = ZSTDds_decodeBlockHeader;
             }
@@ -1511,7 +1600,8 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
                         (U32)(zds->fParams.windowSize >>10),
                         (U32)(zds->maxWindowSize >> 10) );
             zds->fParams.windowSize = MAX(zds->fParams.windowSize, 1U << ZSTD_WINDOWLOG_ABSOLUTEMIN);
-            if (zds->fParams.windowSize > zds->maxWindowSize) return ERROR(frameParameter_windowTooLarge);
+            RETURN_ERROR_IF(zds->fParams.windowSize > zds->maxWindowSize,
+                            frameParameter_windowTooLarge);
 
             /* Adapt buffer sizes to frame header instructions */
             {   size_t const neededInBuffSize = MAX(zds->fParams.blockSizeMax, 4 /* frame checksum */);
@@ -1525,14 +1615,15 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
                     if (zds->staticSize) {  /* static DCtx */
                         DEBUGLOG(4, "staticSize : %u", (U32)zds->staticSize);
                         assert(zds->staticSize >= sizeof(ZSTD_DCtx));  /* controlled at init */
-                        if (bufferSize > zds->staticSize - sizeof(ZSTD_DCtx))
-                            return ERROR(memory_allocation);
+                        RETURN_ERROR_IF(
+                            bufferSize > zds->staticSize - sizeof(ZSTD_DCtx),
+                            memory_allocation);
                     } else {
                         ZSTD_free(zds->inBuff, zds->customMem);
                         zds->inBuffSize = 0;
                         zds->outBuffSize = 0;
                         zds->inBuff = (char*)ZSTD_malloc(bufferSize, zds->customMem);
-                        if (zds->inBuff == NULL) return ERROR(memory_allocation);
+                        RETURN_ERROR_IF(zds->inBuff == NULL, memory_allocation);
                     }
                     zds->inBuffSize = neededInBuffSize;
                     zds->outBuff = zds->inBuff + zds->inBuffSize;
@@ -1574,7 +1665,9 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
                 if (isSkipFrame) {
                     loadedSize = MIN(toLoad, (size_t)(iend-ip));
                 } else {
-                    if (toLoad > zds->inBuffSize - zds->inPos) return ERROR(corruption_detected);   /* should never happen */
+                    RETURN_ERROR_IF(toLoad > zds->inBuffSize - zds->inPos,
+                                    corruption_detected,
+                                    "should never happen");
                     loadedSize = ZSTD_limitCopy(zds->inBuff + zds->inPos, toLoad, ip, iend-ip);
                 }
                 ip += loadedSize;
@@ -1615,7 +1708,7 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
 
         default:
             assert(0);    /* impossible */
-            return ERROR(GENERIC);   /* some compiler require default to do something */
+            RETURN_ERROR(GENERIC);   /* some compiler require default to do something */
     }   }
 
     /* result */
@@ -1624,8 +1717,8 @@ size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inB
     if ((ip==istart) && (op==ostart)) {  /* no forward progress */
         zds->noForwardProgress ++;
         if (zds->noForwardProgress >= ZSTD_NO_FORWARD_PROGRESS_MAX) {
-            if (op==oend) return ERROR(dstSize_tooSmall);
-            if (ip==iend) return ERROR(srcSize_wrong);
+            RETURN_ERROR_IF(op==oend, dstSize_tooSmall);
+            RETURN_ERROR_IF(ip==iend, srcSize_wrong);
             assert(0);
         }
     } else {
diff --git a/thirdparty/zstd/decompress/zstd_decompress_block.c b/thirdparty/zstd/decompress/zstd_decompress_block.c
index 32baad9fbb..a2a7eedcf2 100644
--- a/thirdparty/zstd/decompress/zstd_decompress_block.c
+++ b/thirdparty/zstd/decompress/zstd_decompress_block.c
@@ -56,14 +56,15 @@ static void ZSTD_copy4(void* dst, const void* src) { memcpy(dst, src, 4); }
 size_t ZSTD_getcBlockSize(const void* src, size_t srcSize,
                           blockProperties_t* bpPtr)
 {
-    if (srcSize < ZSTD_blockHeaderSize) return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(srcSize < ZSTD_blockHeaderSize, srcSize_wrong);
+
     {   U32 const cBlockHeader = MEM_readLE24(src);
         U32 const cSize = cBlockHeader >> 3;
         bpPtr->lastBlock = cBlockHeader & 1;
         bpPtr->blockType = (blockType_e)((cBlockHeader >> 1) & 3);
         bpPtr->origSize = cSize;   /* only useful for RLE */
         if (bpPtr->blockType == bt_rle) return 1;
-        if (bpPtr->blockType == bt_reserved) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(bpPtr->blockType == bt_reserved, corruption_detected);
         return cSize;
     }
 }
@@ -78,7 +79,7 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
 size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
                           const void* src, size_t srcSize)   /* note : srcSize < BLOCKSIZE */
 {
-    if (srcSize < MIN_CBLOCK_SIZE) return ERROR(corruption_detected);
+    RETURN_ERROR_IF(srcSize < MIN_CBLOCK_SIZE, corruption_detected);
 
     {   const BYTE* const istart = (const BYTE*) src;
         symbolEncodingType_e const litEncType = (symbolEncodingType_e)(istart[0] & 3);
@@ -86,11 +87,11 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
         switch(litEncType)
         {
         case set_repeat:
-            if (dctx->litEntropy==0) return ERROR(dictionary_corrupted);
+            RETURN_ERROR_IF(dctx->litEntropy==0, dictionary_corrupted);
             /* fall-through */
 
         case set_compressed:
-            if (srcSize < 5) return ERROR(corruption_detected);   /* srcSize >= MIN_CBLOCK_SIZE == 3; here we need up to 5 for case 3 */
+            RETURN_ERROR_IF(srcSize < 5, corruption_detected, "srcSize >= MIN_CBLOCK_SIZE == 3; here we need up to 5 for case 3");
             {   size_t lhSize, litSize, litCSize;
                 U32 singleStream=0;
                 U32 const lhlCode = (istart[0] >> 2) & 3;
@@ -118,8 +119,8 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
                     litCSize = (lhc >> 22) + (istart[4] << 10);
                     break;
                 }
-                if (litSize > ZSTD_BLOCKSIZE_MAX) return ERROR(corruption_detected);
-                if (litCSize + lhSize > srcSize) return ERROR(corruption_detected);
+                RETURN_ERROR_IF(litSize > ZSTD_BLOCKSIZE_MAX, corruption_detected);
+                RETURN_ERROR_IF(litCSize + lhSize > srcSize, corruption_detected);
 
                 /* prefetch huffman table if cold */
                 if (dctx->ddictIsCold && (litSize > 768 /* heuristic */)) {
@@ -157,7 +158,7 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
                     }
                 }
 
-                if (HUF_isError(hufSuccess)) return ERROR(corruption_detected);
+                RETURN_ERROR_IF(HUF_isError(hufSuccess), corruption_detected);
 
                 dctx->litPtr = dctx->litBuffer;
                 dctx->litSize = litSize;
@@ -187,7 +188,7 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
                 }
 
                 if (lhSize+litSize+WILDCOPY_OVERLENGTH > srcSize) {  /* risk reading beyond src buffer with wildcopy */
-                    if (litSize+lhSize > srcSize) return ERROR(corruption_detected);
+                    RETURN_ERROR_IF(litSize+lhSize > srcSize, corruption_detected);
                     memcpy(dctx->litBuffer, istart+lhSize, litSize);
                     dctx->litPtr = dctx->litBuffer;
                     dctx->litSize = litSize;
@@ -216,17 +217,17 @@ size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx* dctx,
                 case 3:
                     lhSize = 3;
                     litSize = MEM_readLE24(istart) >> 4;
-                    if (srcSize<4) return ERROR(corruption_detected);   /* srcSize >= MIN_CBLOCK_SIZE == 3; here we need lhSize+1 = 4 */
+                    RETURN_ERROR_IF(srcSize<4, corruption_detected, "srcSize >= MIN_CBLOCK_SIZE == 3; here we need lhSize+1 = 4");
                     break;
                 }
-                if (litSize > ZSTD_BLOCKSIZE_MAX) return ERROR(corruption_detected);
+                RETURN_ERROR_IF(litSize > ZSTD_BLOCKSIZE_MAX, corruption_detected);
                 memset(dctx->litBuffer, istart[lhSize], litSize + WILDCOPY_OVERLENGTH);
                 dctx->litPtr = dctx->litBuffer;
                 dctx->litSize = litSize;
                 return lhSize+1;
             }
         default:
-            return ERROR(corruption_detected);   /* impossible */
+            RETURN_ERROR(corruption_detected, "impossible");
         }
     }
 }
@@ -436,8 +437,8 @@ static size_t ZSTD_buildSeqTable(ZSTD_seqSymbol* DTableSpace, const ZSTD_seqSymb
     switch(type)
     {
     case set_rle :
-        if (!srcSize) return ERROR(srcSize_wrong);
-        if ( (*(const BYTE*)src) > max) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(!srcSize, srcSize_wrong);
+        RETURN_ERROR_IF((*(const BYTE*)src) > max, corruption_detected);
         {   U32 const symbol = *(const BYTE*)src;
             U32 const baseline = baseValue[symbol];
             U32 const nbBits = nbAdditionalBits[symbol];
@@ -449,7 +450,7 @@ static size_t ZSTD_buildSeqTable(ZSTD_seqSymbol* DTableSpace, const ZSTD_seqSymb
         *DTablePtr = defaultTable;
         return 0;
     case set_repeat:
-        if (!flagRepeatTable) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(!flagRepeatTable, corruption_detected);
         /* prefetch FSE table if used */
         if (ddictIsCold && (nbSeq > 24 /* heuristic */)) {
             const void* const pStart = *DTablePtr;
@@ -461,15 +462,15 @@ static size_t ZSTD_buildSeqTable(ZSTD_seqSymbol* DTableSpace, const ZSTD_seqSymb
         {   unsigned tableLog;
             S16 norm[MaxSeq+1];
             size_t const headerSize = FSE_readNCount(norm, &max, &tableLog, src, srcSize);
-            if (FSE_isError(headerSize)) return ERROR(corruption_detected);
-            if (tableLog > maxLog) return ERROR(corruption_detected);
+            RETURN_ERROR_IF(FSE_isError(headerSize), corruption_detected);
+            RETURN_ERROR_IF(tableLog > maxLog, corruption_detected);
             ZSTD_buildFSETable(DTableSpace, norm, max, baseValue, nbAdditionalBits, tableLog);
             *DTablePtr = DTableSpace;
             return headerSize;
         }
-    default :   /* impossible */
+    default :
         assert(0);
-        return ERROR(GENERIC);
+        RETURN_ERROR(GENERIC, "impossible");
     }
 }
 
@@ -483,28 +484,28 @@ size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx* dctx, int* nbSeqPtr,
     DEBUGLOG(5, "ZSTD_decodeSeqHeaders");
 
     /* check */
-    if (srcSize < MIN_SEQUENCES_SIZE) return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(srcSize < MIN_SEQUENCES_SIZE, srcSize_wrong);
 
     /* SeqHead */
     nbSeq = *ip++;
     if (!nbSeq) {
         *nbSeqPtr=0;
-        if (srcSize != 1) return ERROR(srcSize_wrong);
+        RETURN_ERROR_IF(srcSize != 1, srcSize_wrong);
         return 1;
     }
     if (nbSeq > 0x7F) {
         if (nbSeq == 0xFF) {
-            if (ip+2 > iend) return ERROR(srcSize_wrong);
+            RETURN_ERROR_IF(ip+2 > iend, srcSize_wrong);
             nbSeq = MEM_readLE16(ip) + LONGNBSEQ, ip+=2;
         } else {
-            if (ip >= iend) return ERROR(srcSize_wrong);
+            RETURN_ERROR_IF(ip >= iend, srcSize_wrong);
             nbSeq = ((nbSeq-0x80)<<8) + *ip++;
         }
     }
     *nbSeqPtr = nbSeq;
 
     /* FSE table descriptors */
-    if (ip+4 > iend) return ERROR(srcSize_wrong); /* minimum possible size */
+    RETURN_ERROR_IF(ip+4 > iend, srcSize_wrong); /* minimum possible size */
     {   symbolEncodingType_e const LLtype = (symbolEncodingType_e)(*ip >> 6);
         symbolEncodingType_e const OFtype = (symbolEncodingType_e)((*ip >> 4) & 3);
         symbolEncodingType_e const MLtype = (symbolEncodingType_e)((*ip >> 2) & 3);
@@ -517,7 +518,7 @@ size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx* dctx, int* nbSeqPtr,
                                                       LL_base, LL_bits,
                                                       LL_defaultDTable, dctx->fseEntropy,
                                                       dctx->ddictIsCold, nbSeq);
-            if (ZSTD_isError(llhSize)) return ERROR(corruption_detected);
+            RETURN_ERROR_IF(ZSTD_isError(llhSize), corruption_detected);
             ip += llhSize;
         }
 
@@ -527,7 +528,7 @@ size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx* dctx, int* nbSeqPtr,
                                                       OF_base, OF_bits,
                                                       OF_defaultDTable, dctx->fseEntropy,
                                                       dctx->ddictIsCold, nbSeq);
-            if (ZSTD_isError(ofhSize)) return ERROR(corruption_detected);
+            RETURN_ERROR_IF(ZSTD_isError(ofhSize), corruption_detected);
             ip += ofhSize;
         }
 
@@ -537,7 +538,7 @@ size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx* dctx, int* nbSeqPtr,
                                                       ML_base, ML_bits,
                                                       ML_defaultDTable, dctx->fseEntropy,
                                                       dctx->ddictIsCold, nbSeq);
-            if (ZSTD_isError(mlhSize)) return ERROR(corruption_detected);
+            RETURN_ERROR_IF(ZSTD_isError(mlhSize), corruption_detected);
             ip += mlhSize;
         }
     }
@@ -590,8 +591,8 @@ size_t ZSTD_execSequenceLast7(BYTE* op,
     const BYTE* match = oLitEnd - sequence.offset;
 
     /* check */
-    if (oMatchEnd>oend) return ERROR(dstSize_tooSmall);   /* last match must fit within dstBuffer */
-    if (iLitEnd > litLimit) return ERROR(corruption_detected);   /* try to read beyond literal buffer */
+    RETURN_ERROR_IF(oMatchEnd>oend, dstSize_tooSmall, "last match must fit within dstBuffer");
+    RETURN_ERROR_IF(iLitEnd > litLimit, corruption_detected, "try to read beyond literal buffer");
 
     /* copy literals */
     while (op < oLitEnd) *op++ = *(*litPtr)++;
@@ -599,7 +600,7 @@ size_t ZSTD_execSequenceLast7(BYTE* op,
     /* copy Match */
     if (sequence.offset > (size_t)(oLitEnd - base)) {
         /* offset beyond prefix */
-        if (sequence.offset > (size_t)(oLitEnd - vBase)) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(sequence.offset > (size_t)(oLitEnd - vBase),corruption_detected);
         match = dictEnd - (base-match);
         if (match + sequence.matchLength <= dictEnd) {
             memmove(oLitEnd, match, sequence.matchLength);
@@ -631,8 +632,8 @@ size_t ZSTD_execSequence(BYTE* op,
     const BYTE* match = oLitEnd - sequence.offset;
 
     /* check */
-    if (oMatchEnd>oend) return ERROR(dstSize_tooSmall); /* last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend */
-    if (iLitEnd > litLimit) return ERROR(corruption_detected);   /* over-read beyond lit buffer */
+    RETURN_ERROR_IF(oMatchEnd>oend, dstSize_tooSmall, "last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend");
+    RETURN_ERROR_IF(iLitEnd > litLimit, corruption_detected, "over-read beyond lit buffer");
     if (oLitEnd>oend_w) return ZSTD_execSequenceLast7(op, oend, sequence, litPtr, litLimit, prefixStart, virtualStart, dictEnd);
 
     /* copy Literals */
@@ -645,8 +646,7 @@ size_t ZSTD_execSequence(BYTE* op,
     /* copy Match */
     if (sequence.offset > (size_t)(oLitEnd - prefixStart)) {
         /* offset beyond prefix -> go into extDict */
-        if (sequence.offset > (size_t)(oLitEnd - virtualStart))
-            return ERROR(corruption_detected);
+        RETURN_ERROR_IF(sequence.offset > (size_t)(oLitEnd - virtualStart), corruption_detected);
         match = dictEnd + (match - prefixStart);
         if (match + sequence.matchLength <= dictEnd) {
             memmove(oLitEnd, match, sequence.matchLength);
@@ -712,8 +712,8 @@ size_t ZSTD_execSequenceLong(BYTE* op,
     const BYTE* match = sequence.match;
 
     /* check */
-    if (oMatchEnd > oend) return ERROR(dstSize_tooSmall); /* last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend */
-    if (iLitEnd > litLimit) return ERROR(corruption_detected);   /* over-read beyond lit buffer */
+    RETURN_ERROR_IF(oMatchEnd > oend, dstSize_tooSmall, "last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend");
+    RETURN_ERROR_IF(iLitEnd > litLimit, corruption_detected, "over-read beyond lit buffer");
     if (oLitEnd > oend_w) return ZSTD_execSequenceLast7(op, oend, sequence, litPtr, litLimit, prefixStart, dictStart, dictEnd);
 
     /* copy Literals */
@@ -726,7 +726,7 @@ size_t ZSTD_execSequenceLong(BYTE* op,
     /* copy Match */
     if (sequence.offset > (size_t)(oLitEnd - prefixStart)) {
         /* offset beyond prefix */
-        if (sequence.offset > (size_t)(oLitEnd - dictStart)) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(sequence.offset > (size_t)(oLitEnd - dictStart), corruption_detected);
         if (match + sequence.matchLength <= dictEnd) {
             memmove(oLitEnd, match, sequence.matchLength);
             return sequenceLength;
@@ -801,7 +801,7 @@ ZSTD_updateFseState(ZSTD_fseState* DStatePtr, BIT_DStream_t* bitD)
 /* We need to add at most (ZSTD_WINDOWLOG_MAX_32 - 1) bits to read the maximum
  * offset bits. But we can only read at most (STREAM_ACCUMULATOR_MIN_32 - 1)
  * bits before reloading. This value is the maximum number of bytes we read
- * after reloading when we are decoding long offets.
+ * after reloading when we are decoding long offsets.
  */
 #define LONG_OFFSETS_MAX_EXTRA_BITS_32                       \
     (ZSTD_WINDOWLOG_MAX_32 > STREAM_ACCUMULATOR_MIN_32       \
@@ -911,7 +911,9 @@ ZSTD_decompressSequences_body( ZSTD_DCtx* dctx,
         seqState_t seqState;
         dctx->fseEntropy = 1;
         { U32 i; for (i=0; i<ZSTD_REP_NUM; i++) seqState.prevOffset[i] = dctx->entropy.rep[i]; }
-        CHECK_E(BIT_initDStream(&seqState.DStream, ip, iend-ip), corruption_detected);
+        RETURN_ERROR_IF(
+            ERR_isError(BIT_initDStream(&seqState.DStream, ip, iend-ip)),
+            corruption_detected);
         ZSTD_initFseState(&seqState.stateLL, &seqState.DStream, dctx->LLTptr);
         ZSTD_initFseState(&seqState.stateOffb, &seqState.DStream, dctx->OFTptr);
         ZSTD_initFseState(&seqState.stateML, &seqState.DStream, dctx->MLTptr);
@@ -927,14 +929,14 @@ ZSTD_decompressSequences_body( ZSTD_DCtx* dctx,
 
         /* check if reached exact end */
         DEBUGLOG(5, "ZSTD_decompressSequences_body: after decode loop, remaining nbSeq : %i", nbSeq);
-        if (nbSeq) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(nbSeq, corruption_detected);
         /* save reps for next block */
         { U32 i; for (i=0; i<ZSTD_REP_NUM; i++) dctx->entropy.rep[i] = (U32)(seqState.prevOffset[i]); }
     }
 
     /* last literal segment */
     {   size_t const lastLLSize = litEnd - litPtr;
-        if (lastLLSize > (size_t)(oend-op)) return ERROR(dstSize_tooSmall);
+        RETURN_ERROR_IF(lastLLSize > (size_t)(oend-op), dstSize_tooSmall);
         memcpy(op, litPtr, lastLLSize);
         op += lastLLSize;
     }
@@ -1066,7 +1068,9 @@ ZSTD_decompressSequencesLong_body(
         seqState.pos = (size_t)(op-prefixStart);
         seqState.dictEnd = dictEnd;
         assert(iend >= ip);
-        CHECK_E(BIT_initDStream(&seqState.DStream, ip, iend-ip), corruption_detected);
+        RETURN_ERROR_IF(
+            ERR_isError(BIT_initDStream(&seqState.DStream, ip, iend-ip)),
+            corruption_detected);
         ZSTD_initFseState(&seqState.stateLL, &seqState.DStream, dctx->LLTptr);
         ZSTD_initFseState(&seqState.stateOffb, &seqState.DStream, dctx->OFTptr);
         ZSTD_initFseState(&seqState.stateML, &seqState.DStream, dctx->MLTptr);
@@ -1076,7 +1080,7 @@ ZSTD_decompressSequencesLong_body(
             sequences[seqNb] = ZSTD_decodeSequenceLong(&seqState, isLongOffset);
             PREFETCH_L1(sequences[seqNb].match); PREFETCH_L1(sequences[seqNb].match + sequences[seqNb].matchLength - 1); /* note : it's safe to invoke PREFETCH() on any memory address, including invalid ones */
         }
-        if (seqNb<seqAdvance) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(seqNb<seqAdvance, corruption_detected);
 
         /* decode and decompress */
         for ( ; (BIT_reloadDStream(&(seqState.DStream)) <= BIT_DStream_completed) && (seqNb<nbSeq) ; seqNb++) {
@@ -1087,7 +1091,7 @@ ZSTD_decompressSequencesLong_body(
             sequences[seqNb & STORED_SEQS_MASK] = sequence;
             op += oneSeqSize;
         }
-        if (seqNb<nbSeq) return ERROR(corruption_detected);
+        RETURN_ERROR_IF(seqNb<nbSeq, corruption_detected);
 
         /* finish queue */
         seqNb -= seqAdvance;
@@ -1103,7 +1107,7 @@ ZSTD_decompressSequencesLong_body(
 
     /* last literal segment */
     {   size_t const lastLLSize = litEnd - litPtr;
-        if (lastLLSize > (size_t)(oend-op)) return ERROR(dstSize_tooSmall);
+        RETURN_ERROR_IF(lastLLSize > (size_t)(oend-op), dstSize_tooSmall);
         memcpy(op, litPtr, lastLLSize);
         op += lastLLSize;
     }
@@ -1176,7 +1180,7 @@ ZSTD_decompressSequences(ZSTD_DCtx* dctx, void* dst, size_t maxDstSize,
 /* ZSTD_decompressSequencesLong() :
  * decompression function triggered when a minimum share of offsets is considered "long",
  * aka out of cache.
- * note : "long" definition seems overloaded here, sometimes meaning "wider than bitstream register", and sometimes mearning "farther than memory cache distance".
+ * note : "long" definition seems overloaded here, sometimes meaning "wider than bitstream register", and sometimes meaning "farther than memory cache distance".
  * This function will try to mitigate main memory latency through the use of prefetching */
 static size_t
 ZSTD_decompressSequencesLong(ZSTD_DCtx* dctx,
@@ -1240,7 +1244,7 @@ ZSTD_decompressBlock_internal(ZSTD_DCtx* dctx,
     ZSTD_longOffset_e const isLongOffset = (ZSTD_longOffset_e)(MEM_32bits() && (!frame || (dctx->fParams.windowSize > (1ULL << STREAM_ACCUMULATOR_MIN))));
     DEBUGLOG(5, "ZSTD_decompressBlock_internal (size : %u)", (U32)srcSize);
 
-    if (srcSize >= ZSTD_BLOCKSIZE_MAX) return ERROR(srcSize_wrong);
+    RETURN_ERROR_IF(srcSize >= ZSTD_BLOCKSIZE_MAX, srcSize_wrong);
 
     /* Decode literals section */
     {   size_t const litCSize = ZSTD_decodeLiteralsBlock(dctx, src, srcSize);
diff --git a/thirdparty/zstd/decompress/zstd_decompress_internal.h b/thirdparty/zstd/decompress/zstd_decompress_internal.h
index abd0030519..ccbdfa090f 100644
--- a/thirdparty/zstd/decompress/zstd_decompress_internal.h
+++ b/thirdparty/zstd/decompress/zstd_decompress_internal.h
@@ -89,6 +89,12 @@ typedef enum { ZSTDds_getFrameHeaderSize, ZSTDds_decodeFrameHeader,
 typedef enum { zdss_init=0, zdss_loadHeader,
                zdss_read, zdss_load, zdss_flush } ZSTD_dStreamStage;
 
+typedef enum {
+    ZSTD_use_indefinitely = -1,  /* Use the dictionary indefinitely */
+    ZSTD_dont_use = 0,           /* Do not use the dictionary (if one exists free it) */
+    ZSTD_use_once = 1            /* Use the dictionary once and set to ZSTD_dont_use */
+} ZSTD_dictUses_e;
+
 struct ZSTD_DCtx_s
 {
     const ZSTD_seqSymbol* LLTptr;
@@ -123,6 +129,7 @@ struct ZSTD_DCtx_s
     const ZSTD_DDict* ddict;     /* set by ZSTD_initDStream_usingDDict(), or ZSTD_DCtx_refDDict() */
     U32 dictID;
     int ddictIsCold;             /* if == 1 : dictionary is "new" for working context, and presumed "cold" (not in cpu cache) */
+    ZSTD_dictUses_e dictUses;
 
     /* streaming */
     ZSTD_dStreamStage streamStage;
diff --git a/thirdparty/zstd/zstd.h b/thirdparty/zstd/zstd.h
index b18fc8a44b..53470c18f3 100644
--- a/thirdparty/zstd/zstd.h
+++ b/thirdparty/zstd/zstd.h
@@ -70,8 +70,8 @@ extern "C" {
 
 /*------   Version   ------*/
 #define ZSTD_VERSION_MAJOR    1
-#define ZSTD_VERSION_MINOR    3
-#define ZSTD_VERSION_RELEASE  8
+#define ZSTD_VERSION_MINOR    4
+#define ZSTD_VERSION_RELEASE  0
 
 #define ZSTD_VERSION_NUMBER  (ZSTD_VERSION_MAJOR *100*100 + ZSTD_VERSION_MINOR *100 + ZSTD_VERSION_RELEASE)
 ZSTDLIB_API unsigned ZSTD_versionNumber(void);   /**< to check runtime library version */
@@ -90,6 +90,21 @@ ZSTDLIB_API const char* ZSTD_versionString(void);   /* requires v1.3.0+ */
 #endif
 
 /***************************************
+*  Constants
+***************************************/
+
+/* All magic numbers are supposed read/written to/from files/memory using little-endian convention */
+#define ZSTD_MAGICNUMBER            0xFD2FB528    /* valid since v0.8.0 */
+#define ZSTD_MAGIC_DICTIONARY       0xEC30A437    /* valid since v0.7.0 */
+#define ZSTD_MAGIC_SKIPPABLE_START  0x184D2A50    /* all 16 values, from 0x184D2A50 to 0x184D2A5F, signal the beginning of a skippable frame */
+#define ZSTD_MAGIC_SKIPPABLE_MASK   0xFFFFFFF0
+
+#define ZSTD_BLOCKSIZELOG_MAX  17
+#define ZSTD_BLOCKSIZE_MAX     (1<<ZSTD_BLOCKSIZELOG_MAX)
+
+
+
+/***************************************
 *  Simple API
 ***************************************/
 /*! ZSTD_compress() :
@@ -145,12 +160,21 @@ ZSTDLIB_API unsigned long long ZSTD_getFrameContentSize(const void *src, size_t
  * @return : decompressed size of `src` frame content _if known and not empty_, 0 otherwise. */
 ZSTDLIB_API unsigned long long ZSTD_getDecompressedSize(const void* src, size_t srcSize);
 
+/*! ZSTD_findFrameCompressedSize() :
+ * `src` should point to the start of a ZSTD frame or skippable frame.
+ * `srcSize` must be >= first frame size
+ * @return : the compressed size of the first frame starting at `src`,
+ *           suitable to pass as `srcSize` to `ZSTD_decompress` or similar,
+ *        or an error code if input is invalid */
+ZSTDLIB_API size_t ZSTD_findFrameCompressedSize(const void* src, size_t srcSize);
+
 
 /*======  Helper functions  ======*/
 #define ZSTD_COMPRESSBOUND(srcSize)   ((srcSize) + ((srcSize)>>8) + (((srcSize) < (128<<10)) ? (((128<<10) - (srcSize)) >> 11) /* margin, from 64 to 0 */ : 0))  /* this formula ensures that bound(A) + bound(B) <= bound(A+B) as long as A and B >= 128 KB */
 ZSTDLIB_API size_t      ZSTD_compressBound(size_t srcSize); /*!< maximum compressed size in worst case single-pass scenario */
 ZSTDLIB_API unsigned    ZSTD_isError(size_t code);          /*!< tells if a `size_t` function result is an error code */
 ZSTDLIB_API const char* ZSTD_getErrorName(size_t code);     /*!< provides readable string from an error code */
+ZSTDLIB_API int         ZSTD_minCLevel(void);               /*!< minimum negative compression level allowed */
 ZSTDLIB_API int         ZSTD_maxCLevel(void);               /*!< maximum compression level available */
 
 
@@ -195,279 +219,6 @@ ZSTDLIB_API size_t ZSTD_decompressDCtx(ZSTD_DCtx* dctx,
                                  const void* src, size_t srcSize);
 
 
-/**************************
-*  Simple dictionary API
-***************************/
-/*! ZSTD_compress_usingDict() :
- *  Compression at an explicit compression level using a Dictionary.
- *  A dictionary can be any arbitrary data segment (also called a prefix),
- *  or a buffer with specified information (see dictBuilder/zdict.h).
- *  Note : This function loads the dictionary, resulting in significant startup delay.
- *         It's intended for a dictionary used only once.
- *  Note 2 : When `dict == NULL || dictSize < 8` no dictionary is used. */
-ZSTDLIB_API size_t ZSTD_compress_usingDict(ZSTD_CCtx* ctx,
-                                           void* dst, size_t dstCapacity,
-                                     const void* src, size_t srcSize,
-                                     const void* dict,size_t dictSize,
-                                           int compressionLevel);
-
-/*! ZSTD_decompress_usingDict() :
- *  Decompression using a known Dictionary.
- *  Dictionary must be identical to the one used during compression.
- *  Note : This function loads the dictionary, resulting in significant startup delay.
- *         It's intended for a dictionary used only once.
- *  Note : When `dict == NULL || dictSize < 8` no dictionary is used. */
-ZSTDLIB_API size_t ZSTD_decompress_usingDict(ZSTD_DCtx* dctx,
-                                             void* dst, size_t dstCapacity,
-                                       const void* src, size_t srcSize,
-                                       const void* dict,size_t dictSize);
-
-
-/***********************************
- *  Bulk processing dictionary API
- **********************************/
-typedef struct ZSTD_CDict_s ZSTD_CDict;
-
-/*! ZSTD_createCDict() :
- *  When compressing multiple messages / blocks using the same dictionary, it's recommended to load it only once.
- *  ZSTD_createCDict() will create a digested dictionary, ready to start future compression operations without startup cost.
- *  ZSTD_CDict can be created once and shared by multiple threads concurrently, since its usage is read-only.
- * `dictBuffer` can be released after ZSTD_CDict creation, because its content is copied within CDict.
- *  Consider experimental function `ZSTD_createCDict_byReference()` if you prefer to not duplicate `dictBuffer` content.
- *  Note : A ZSTD_CDict can be created from an empty dictBuffer, but it is inefficient when used to compress small data. */
-ZSTDLIB_API ZSTD_CDict* ZSTD_createCDict(const void* dictBuffer, size_t dictSize,
-                                         int compressionLevel);
-
-/*! ZSTD_freeCDict() :
- *  Function frees memory allocated by ZSTD_createCDict(). */
-ZSTDLIB_API size_t      ZSTD_freeCDict(ZSTD_CDict* CDict);
-
-/*! ZSTD_compress_usingCDict() :
- *  Compression using a digested Dictionary.
- *  Recommended when same dictionary is used multiple times.
- *  Note : compression level is _decided at dictionary creation time_,
- *     and frame parameters are hardcoded (dictID=yes, contentSize=yes, checksum=no) */
-ZSTDLIB_API size_t ZSTD_compress_usingCDict(ZSTD_CCtx* cctx,
-                                            void* dst, size_t dstCapacity,
-                                      const void* src, size_t srcSize,
-                                      const ZSTD_CDict* cdict);
-
-
-typedef struct ZSTD_DDict_s ZSTD_DDict;
-
-/*! ZSTD_createDDict() :
- *  Create a digested dictionary, ready to start decompression operation without startup delay.
- *  dictBuffer can be released after DDict creation, as its content is copied inside DDict. */
-ZSTDLIB_API ZSTD_DDict* ZSTD_createDDict(const void* dictBuffer, size_t dictSize);
-
-/*! ZSTD_freeDDict() :
- *  Function frees memory allocated with ZSTD_createDDict() */
-ZSTDLIB_API size_t      ZSTD_freeDDict(ZSTD_DDict* ddict);
-
-/*! ZSTD_decompress_usingDDict() :
- *  Decompression using a digested Dictionary.
- *  Recommended when same dictionary is used multiple times. */
-ZSTDLIB_API size_t ZSTD_decompress_usingDDict(ZSTD_DCtx* dctx,
-                                              void* dst, size_t dstCapacity,
-                                        const void* src, size_t srcSize,
-                                        const ZSTD_DDict* ddict);
-
-
-/****************************
-*  Streaming
-****************************/
-
-typedef struct ZSTD_inBuffer_s {
-  const void* src;    /**< start of input buffer */
-  size_t size;        /**< size of input buffer */
-  size_t pos;         /**< position where reading stopped. Will be updated. Necessarily 0 <= pos <= size */
-} ZSTD_inBuffer;
-
-typedef struct ZSTD_outBuffer_s {
-  void*  dst;         /**< start of output buffer */
-  size_t size;        /**< size of output buffer */
-  size_t pos;         /**< position where writing stopped. Will be updated. Necessarily 0 <= pos <= size */
-} ZSTD_outBuffer;
-
-
-
-/*-***********************************************************************
-*  Streaming compression - HowTo
-*
-*  A ZSTD_CStream object is required to track streaming operation.
-*  Use ZSTD_createCStream() and ZSTD_freeCStream() to create/release resources.
-*  ZSTD_CStream objects can be reused multiple times on consecutive compression operations.
-*  It is recommended to re-use ZSTD_CStream since it will play nicer with system's memory, by re-using already allocated memory.
-*
-*  For parallel execution, use one separate ZSTD_CStream per thread.
-*
-*  note : since v1.3.0, ZSTD_CStream and ZSTD_CCtx are the same thing.
-*
-*  Parameters are sticky : when starting a new compression on the same context,
-*  it will re-use the same sticky parameters as previous compression session.
-*  When in doubt, it's recommended to fully initialize the context before usage.
-*  Use ZSTD_initCStream() to set the parameter to a selected compression level.
-*  Use advanced API (ZSTD_CCtx_setParameter(), etc.) to set more specific parameters.
-*
-*  Use ZSTD_compressStream() as many times as necessary to consume input stream.
-*  The function will automatically update both `pos` fields within `input` and `output`.
-*  Note that the function may not consume the entire input,
-*  for example, because the output buffer is already full,
-*  in which case `input.pos < input.size`.
-*  The caller must check if input has been entirely consumed.
-*  If not, the caller must make some room to receive more compressed data,
-*  and then present again remaining input data.
-* @return : a size hint, preferred nb of bytes to use as input for next function call
-*           or an error code, which can be tested using ZSTD_isError().
-*           Note 1 : it's just a hint, to help latency a little, any value will work fine.
-*           Note 2 : size hint is guaranteed to be <= ZSTD_CStreamInSize()
-*
-*  At any moment, it's possible to flush whatever data might remain stuck within internal buffer,
-*  using ZSTD_flushStream(). `output->pos` will be updated.
-*  Note that, if `output->size` is too small, a single invocation of ZSTD_flushStream() might not be enough (return code > 0).
-*  In which case, make some room to receive more compressed data, and call again ZSTD_flushStream().
-*  @return : 0 if internal buffers are entirely flushed,
-*            >0 if some data still present within internal buffer (the value is minimal estimation of remaining size),
-*            or an error code, which can be tested using ZSTD_isError().
-*
-*  ZSTD_endStream() instructs to finish a frame.
-*  It will perform a flush and write frame epilogue.
-*  The epilogue is required for decoders to consider a frame completed.
-*  flush() operation is the same, and follows same rules as ZSTD_flushStream().
-*  @return : 0 if frame fully completed and fully flushed,
-*            >0 if some data still present within internal buffer (the value is minimal estimation of remaining size),
-*            or an error code, which can be tested using ZSTD_isError().
-*
-* *******************************************************************/
-
-typedef ZSTD_CCtx ZSTD_CStream;  /**< CCtx and CStream are now effectively same object (>= v1.3.0) */
-                                 /* Continue to distinguish them for compatibility with older versions <= v1.2.0 */
-/*===== ZSTD_CStream management functions =====*/
-ZSTDLIB_API ZSTD_CStream* ZSTD_createCStream(void);
-ZSTDLIB_API size_t ZSTD_freeCStream(ZSTD_CStream* zcs);
-
-/*===== Streaming compression functions =====*/
-ZSTDLIB_API size_t ZSTD_initCStream(ZSTD_CStream* zcs, int compressionLevel);
-ZSTDLIB_API size_t ZSTD_compressStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
-ZSTDLIB_API size_t ZSTD_flushStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output);
-ZSTDLIB_API size_t ZSTD_endStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output);
-
-ZSTDLIB_API size_t ZSTD_CStreamInSize(void);    /**< recommended size for input buffer */
-ZSTDLIB_API size_t ZSTD_CStreamOutSize(void);   /**< recommended size for output buffer. Guarantee to successfully flush at least one complete compressed block in all circumstances. */
-
-
-
-/*-***************************************************************************
-*  Streaming decompression - HowTo
-*
-*  A ZSTD_DStream object is required to track streaming operations.
-*  Use ZSTD_createDStream() and ZSTD_freeDStream() to create/release resources.
-*  ZSTD_DStream objects can be re-used multiple times.
-*
-*  Use ZSTD_initDStream() to start a new decompression operation.
-* @return : recommended first input size
-*  Alternatively, use advanced API to set specific properties.
-*
-*  Use ZSTD_decompressStream() repetitively to consume your input.
-*  The function will update both `pos` fields.
-*  If `input.pos < input.size`, some input has not been consumed.
-*  It's up to the caller to present again remaining data.
-*  The function tries to flush all data decoded immediately, respecting output buffer size.
-*  If `output.pos < output.size`, decoder has flushed everything it could.
-*  But if `output.pos == output.size`, there might be some data left within internal buffers.,
-*  In which case, call ZSTD_decompressStream() again to flush whatever remains in the buffer.
-*  Note : with no additional input provided, amount of data flushed is necessarily <= ZSTD_BLOCKSIZE_MAX.
-* @return : 0 when a frame is completely decoded and fully flushed,
-*        or an error code, which can be tested using ZSTD_isError(),
-*        or any other value > 0, which means there is still some decoding or flushing to do to complete current frame :
-*                                the return value is a suggested next input size (just a hint for better latency)
-*                                that will never request more than the remaining frame size.
-* *******************************************************************************/
-
-typedef ZSTD_DCtx ZSTD_DStream;  /**< DCtx and DStream are now effectively same object (>= v1.3.0) */
-                                 /* For compatibility with versions <= v1.2.0, prefer differentiating them. */
-/*===== ZSTD_DStream management functions =====*/
-ZSTDLIB_API ZSTD_DStream* ZSTD_createDStream(void);
-ZSTDLIB_API size_t ZSTD_freeDStream(ZSTD_DStream* zds);
-
-/*===== Streaming decompression functions =====*/
-ZSTDLIB_API size_t ZSTD_initDStream(ZSTD_DStream* zds);
-ZSTDLIB_API size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
-
-ZSTDLIB_API size_t ZSTD_DStreamInSize(void);    /*!< recommended size for input buffer */
-ZSTDLIB_API size_t ZSTD_DStreamOutSize(void);   /*!< recommended size for output buffer. Guarantee to successfully flush at least one complete block in all circumstances. */
-
-#endif  /* ZSTD_H_235446 */
-
-
-
-
-/****************************************************************************************
- *   ADVANCED AND EXPERIMENTAL FUNCTIONS
- ****************************************************************************************
- * The definitions in the following section are considered experimental.
- * They are provided for advanced scenarios.
- * They should never be used with a dynamic library, as prototypes may change in the future.
- * Use them only in association with static linking.
- * ***************************************************************************************/
-
-#if defined(ZSTD_STATIC_LINKING_ONLY) && !defined(ZSTD_H_ZSTD_STATIC_LINKING_ONLY)
-#define ZSTD_H_ZSTD_STATIC_LINKING_ONLY
-
-
-/****************************************************************************************
- *   Candidate API for promotion to stable status
- ****************************************************************************************
- * The following symbols and constants form the "staging area" :
- * they are considered to join "stable API" by v1.4.0.
- * The proposal is written so that it can be made stable "as is",
- * though it's still possible to suggest improvements.
- * Staging is in fact last chance for changes,
- * the API is locked once reaching "stable" status.
- * ***************************************************************************************/
-
-
-/* ===  Constants   === */
-
-/* all magic numbers are supposed read/written to/from files/memory using little-endian convention */
-#define ZSTD_MAGICNUMBER            0xFD2FB528    /* valid since v0.8.0 */
-#define ZSTD_MAGIC_DICTIONARY       0xEC30A437    /* valid since v0.7.0 */
-#define ZSTD_MAGIC_SKIPPABLE_START  0x184D2A50    /* all 16 values, from 0x184D2A50 to 0x184D2A5F, signal the beginning of a skippable frame */
-#define ZSTD_MAGIC_SKIPPABLE_MASK   0xFFFFFFF0
-
-#define ZSTD_BLOCKSIZELOG_MAX  17
-#define ZSTD_BLOCKSIZE_MAX     (1<<ZSTD_BLOCKSIZELOG_MAX)
-
-
-/* ===   query limits   === */
-
-ZSTDLIB_API int ZSTD_minCLevel(void);  /*!< minimum negative compression level allowed */
-
-
-/* ===   frame size   === */
-
-/*! ZSTD_findFrameCompressedSize() :
- * `src` should point to the start of a ZSTD frame or skippable frame.
- * `srcSize` must be >= first frame size
- * @return : the compressed size of the first frame starting at `src`,
- *           suitable to pass as `srcSize` to `ZSTD_decompress` or similar,
- *        or an error code if input is invalid */
-ZSTDLIB_API size_t ZSTD_findFrameCompressedSize(const void* src, size_t srcSize);
-
-
-/* ===   Memory management   === */
-
-/*! ZSTD_sizeof_*() :
- *  These functions give the _current_ memory usage of selected object.
- *  Note that object memory usage can evolve (increase or decrease) over time. */
-ZSTDLIB_API size_t ZSTD_sizeof_CCtx(const ZSTD_CCtx* cctx);
-ZSTDLIB_API size_t ZSTD_sizeof_DCtx(const ZSTD_DCtx* dctx);
-ZSTDLIB_API size_t ZSTD_sizeof_CStream(const ZSTD_CStream* zcs);
-ZSTDLIB_API size_t ZSTD_sizeof_DStream(const ZSTD_DStream* zds);
-ZSTDLIB_API size_t ZSTD_sizeof_CDict(const ZSTD_CDict* cdict);
-ZSTDLIB_API size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
-
-
 /***************************************
 *  Advanced compression API
 ***************************************/
@@ -503,7 +254,10 @@ typedef enum { ZSTD_fast=1,
 
 typedef enum {
 
-    /* compression parameters */
+    /* compression parameters
+     * Note: When compressing with a ZSTD_CDict these parameters are superseded
+     * by the parameters used to construct the ZSTD_CDict. See ZSTD_CCtx_refCDict()
+     * for more info (superseded-by-cdict). */
     ZSTD_c_compressionLevel=100, /* Update all compression parameters according to pre-defined cLevel table
                               * Default level is ZSTD_CLEVEL_DEFAULT==3.
                               * Special: value 0 means default, which is controlled by ZSTD_CLEVEL_DEFAULT.
@@ -625,6 +379,7 @@ typedef enum {
      * ZSTD_c_format
      * ZSTD_c_forceMaxWindow
      * ZSTD_c_forceAttachDict
+     * ZSTD_c_literalCompressionMode
      * Because they are not stable, it's necessary to define ZSTD_STATIC_LINKING_ONLY to access them.
      * note : never ever use experimentalParam? names directly;
      *        also, the enums values themselves are unstable and can still change.
@@ -632,10 +387,10 @@ typedef enum {
      ZSTD_c_experimentalParam1=500,
      ZSTD_c_experimentalParam2=10,
      ZSTD_c_experimentalParam3=1000,
-     ZSTD_c_experimentalParam4=1001
+     ZSTD_c_experimentalParam4=1001,
+     ZSTD_c_experimentalParam5=1002,
 } ZSTD_cParameter;
 
-
 typedef struct {
     size_t error;
     int lowerBound;
@@ -677,63 +432,10 @@ ZSTDLIB_API size_t ZSTD_CCtx_setParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param
  *  Note 3 : Whenever all input data is provided and consumed in a single round,
  *           for example with ZSTD_compress2(),
  *           or invoking immediately ZSTD_compressStream2(,,,ZSTD_e_end),
- *           this value is automatically overriden by srcSize instead.
+ *           this value is automatically overridden by srcSize instead.
  */
 ZSTDLIB_API size_t ZSTD_CCtx_setPledgedSrcSize(ZSTD_CCtx* cctx, unsigned long long pledgedSrcSize);
 
-/*! ZSTD_CCtx_loadDictionary() :
- *  Create an internal CDict from `dict` buffer.
- *  Decompression will have to use same dictionary.
- * @result : 0, or an error code (which can be tested with ZSTD_isError()).
- *  Special: Loading a NULL (or 0-size) dictionary invalidates previous dictionary,
- *           meaning "return to no-dictionary mode".
- *  Note 1 : Dictionary is sticky, it will be used for all future compressed frames.
- *           To return to "no-dictionary" situation, load a NULL dictionary (or reset parameters).
- *  Note 2 : Loading a dictionary involves building tables.
- *           It's also a CPU consuming operation, with non-negligible impact on latency.
- *           Tables are dependent on compression parameters, and for this reason,
- *           compression parameters can no longer be changed after loading a dictionary.
- *  Note 3 :`dict` content will be copied internally.
- *           Use experimental ZSTD_CCtx_loadDictionary_byReference() to reference content instead.
- *           In such a case, dictionary buffer must outlive its users.
- *  Note 4 : Use ZSTD_CCtx_loadDictionary_advanced()
- *           to precisely select how dictionary content must be interpreted. */
-ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary(ZSTD_CCtx* cctx, const void* dict, size_t dictSize);
-
-/*! ZSTD_CCtx_refCDict() :
- *  Reference a prepared dictionary, to be used for all next compressed frames.
- *  Note that compression parameters are enforced from within CDict,
- *  and supercede any compression parameter previously set within CCtx.
- *  The dictionary will remain valid for future compressed frames using same CCtx.
- * @result : 0, or an error code (which can be tested with ZSTD_isError()).
- *  Special : Referencing a NULL CDict means "return to no-dictionary mode".
- *  Note 1 : Currently, only one dictionary can be managed.
- *           Referencing a new dictionary effectively "discards" any previous one.
- *  Note 2 : CDict is just referenced, its lifetime must outlive its usage within CCtx. */
-ZSTDLIB_API size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict);
-
-/*! ZSTD_CCtx_refPrefix() :
- *  Reference a prefix (single-usage dictionary) for next compressed frame.
- *  A prefix is **only used once**. Tables are discarded at end of frame (ZSTD_e_end).
- *  Decompression will need same prefix to properly regenerate data.
- *  Compressing with a prefix is similar in outcome as performing a diff and compressing it,
- *  but performs much faster, especially during decompression (compression speed is tunable with compression level).
- * @result : 0, or an error code (which can be tested with ZSTD_isError()).
- *  Special: Adding any prefix (including NULL) invalidates any previous prefix or dictionary
- *  Note 1 : Prefix buffer is referenced. It **must** outlive compression.
- *           Its content must remain unmodified during compression.
- *  Note 2 : If the intention is to diff some large src data blob with some prior version of itself,
- *           ensure that the window size is large enough to contain the entire source.
- *           See ZSTD_c_windowLog.
- *  Note 3 : Referencing a prefix involves building tables, which are dependent on compression parameters.
- *           It's a CPU consuming operation, with non-negligible impact on latency.
- *           If there is a need to use the same prefix multiple times, consider loadDictionary instead.
- *  Note 4 : By default, the prefix is interpreted as raw content (ZSTD_dm_rawContent).
- *           Use experimental ZSTD_CCtx_refPrefix_advanced() to alter dictionary interpretation. */
-ZSTDLIB_API size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx,
-                                 const void* prefix, size_t prefixSize);
-
-
 typedef enum {
     ZSTD_reset_session_only = 1,
     ZSTD_reset_parameters = 2,
@@ -756,8 +458,6 @@ typedef enum {
  */
 ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx, ZSTD_ResetDirective reset);
 
-
-
 /*! ZSTD_compress2() :
  *  Behave the same as ZSTD_compressCCtx(), but compression parameters are set using the advanced API.
  *  ZSTD_compress2() always starts a new frame.
@@ -772,48 +472,10 @@ ZSTDLIB_API size_t ZSTD_compress2( ZSTD_CCtx* cctx,
                                    void* dst, size_t dstCapacity,
                              const void* src, size_t srcSize);
 
-typedef enum {
-    ZSTD_e_continue=0, /* collect more data, encoder decides when to output compressed result, for optimal compression ratio */
-    ZSTD_e_flush=1,    /* flush any data provided so far,
-                        * it creates (at least) one new block, that can be decoded immediately on reception;
-                        * frame will continue: any future data can still reference previously compressed data, improving compression. */
-    ZSTD_e_end=2       /* flush any remaining data _and_ close current frame.
-                        * note that frame is only closed after compressed data is fully flushed (return value == 0).
-                        * After that point, any additional data starts a new frame.
-                        * note : each frame is independent (does not reference any content from previous frame). */
-} ZSTD_EndDirective;
-
-/*! ZSTD_compressStream2() :
- *  Behaves about the same as ZSTD_compressStream, with additional control on end directive.
- *  - Compression parameters are pushed into CCtx before starting compression, using ZSTD_CCtx_set*()
- *  - Compression parameters cannot be changed once compression is started (save a list of exceptions in multi-threading mode)
- *  - outpot->pos must be <= dstCapacity, input->pos must be <= srcSize
- *  - outpot->pos and input->pos will be updated. They are guaranteed to remain below their respective limit.
- *  - When nbWorkers==0 (default), function is blocking : it completes its job before returning to caller.
- *  - When nbWorkers>=1, function is non-blocking : it just acquires a copy of input, and distributes jobs to internal worker threads, flush whatever is available,
- *                                                  and then immediately returns, just indicating that there is some data remaining to be flushed.
- *                                                  The function nonetheless guarantees forward progress : it will return only after it reads or write at least 1+ byte.
- *  - Exception : if the first call requests a ZSTD_e_end directive and provides enough dstCapacity, the function delegates to ZSTD_compress2() which is always blocking.
- *  - @return provides a minimum amount of data remaining to be flushed from internal buffers
- *            or an error code, which can be tested using ZSTD_isError().
- *            if @return != 0, flush is not fully completed, there is still some data left within internal buffers.
- *            This is useful for ZSTD_e_flush, since in this case more flushes are necessary to empty all buffers.
- *            For ZSTD_e_end, @return == 0 when internal buffers are fully flushed and frame is completed.
- *  - after a ZSTD_e_end directive, if internal buffer is not fully flushed (@return != 0),
- *            only ZSTD_e_end or ZSTD_e_flush operations are allowed.
- *            Before starting a new compression job, or changing compression parameters,
- *            it is required to fully flush internal buffers.
- */
-ZSTDLIB_API size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
-                                         ZSTD_outBuffer* output,
-                                         ZSTD_inBuffer* input,
-                                         ZSTD_EndDirective endOp);
-
-
 
-/* ============================== */
-/*   Advanced decompression API   */
-/* ============================== */
+/***************************************
+*  Advanced decompression API
+***************************************/
 
 /* The advanced API pushes parameters one by one into an existing DCtx context.
  * Parameters are sticky, and remain valid for all following frames
@@ -823,14 +485,14 @@ ZSTDLIB_API size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
  *        Therefore, no new decompression function is necessary.
  */
 
-
 typedef enum {
 
     ZSTD_d_windowLogMax=100, /* Select a size limit (in power of 2) beyond which
                               * the streaming API will refuse to allocate memory buffer
                               * in order to protect the host from unreasonable memory requirements.
                               * This parameter is only useful in streaming mode, since no internal buffer is allocated in single-pass mode.
-                              * By default, a decompression context accepts window sizes <= (1 << ZSTD_WINDOWLOG_LIMIT_DEFAULT) */
+                              * By default, a decompression context accepts window sizes <= (1 << ZSTD_WINDOWLOG_LIMIT_DEFAULT).
+                              * Special: value 0 means "use default maximum windowLog". */
 
     /* note : additional experimental parameters are also available
      * within the experimental section of the API.
@@ -843,7 +505,6 @@ typedef enum {
 
 } ZSTD_dParameter;
 
-
 /*! ZSTD_dParam_getBounds() :
  *  All parameters must belong to an interval with lower and upper bounds,
  *  otherwise they will either trigger an error or be automatically clamped.
@@ -862,6 +523,389 @@ ZSTDLIB_API ZSTD_bounds ZSTD_dParam_getBounds(ZSTD_dParameter dParam);
  */
 ZSTDLIB_API size_t ZSTD_DCtx_setParameter(ZSTD_DCtx* dctx, ZSTD_dParameter param, int value);
 
+/*! ZSTD_DCtx_reset() :
+ *  Return a DCtx to clean state.
+ *  Session and parameters can be reset jointly or separately.
+ *  Parameters can only be reset when no active frame is being decompressed.
+ * @return : 0, or an error code, which can be tested with ZSTD_isError()
+ */
+ZSTDLIB_API size_t ZSTD_DCtx_reset(ZSTD_DCtx* dctx, ZSTD_ResetDirective reset);
+
+
+/****************************
+*  Streaming
+****************************/
+
+typedef struct ZSTD_inBuffer_s {
+  const void* src;    /**< start of input buffer */
+  size_t size;        /**< size of input buffer */
+  size_t pos;         /**< position where reading stopped. Will be updated. Necessarily 0 <= pos <= size */
+} ZSTD_inBuffer;
+
+typedef struct ZSTD_outBuffer_s {
+  void*  dst;         /**< start of output buffer */
+  size_t size;        /**< size of output buffer */
+  size_t pos;         /**< position where writing stopped. Will be updated. Necessarily 0 <= pos <= size */
+} ZSTD_outBuffer;
+
+
+
+/*-***********************************************************************
+*  Streaming compression - HowTo
+*
+*  A ZSTD_CStream object is required to track streaming operation.
+*  Use ZSTD_createCStream() and ZSTD_freeCStream() to create/release resources.
+*  ZSTD_CStream objects can be reused multiple times on consecutive compression operations.
+*  It is recommended to re-use ZSTD_CStream since it will play nicer with system's memory, by re-using already allocated memory.
+*
+*  For parallel execution, use one separate ZSTD_CStream per thread.
+*
+*  note : since v1.3.0, ZSTD_CStream and ZSTD_CCtx are the same thing.
+*
+*  Parameters are sticky : when starting a new compression on the same context,
+*  it will re-use the same sticky parameters as previous compression session.
+*  When in doubt, it's recommended to fully initialize the context before usage.
+*  Use ZSTD_CCtx_reset() to reset the context and ZSTD_CCtx_setParameter(),
+*  ZSTD_CCtx_setPledgedSrcSize(), or ZSTD_CCtx_loadDictionary() and friends to
+*  set more specific parameters, the pledged source size, or load a dictionary.
+*
+*  Use ZSTD_compressStream2() with ZSTD_e_continue as many times as necessary to
+*  consume input stream. The function will automatically update both `pos`
+*  fields within `input` and `output`.
+*  Note that the function may not consume the entire input, for example, because
+*  the output buffer is already full, in which case `input.pos < input.size`.
+*  The caller must check if input has been entirely consumed.
+*  If not, the caller must make some room to receive more compressed data,
+*  and then present again remaining input data.
+*  note: ZSTD_e_continue is guaranteed to make some forward progress when called,
+*        but doesn't guarantee maximal forward progress. This is especially relevant
+*        when compressing with multiple threads. The call won't block if it can
+*        consume some input, but if it can't it will wait for some, but not all,
+*        output to be flushed.
+* @return : provides a minimum amount of data remaining to be flushed from internal buffers
+*           or an error code, which can be tested using ZSTD_isError().
+*
+*  At any moment, it's possible to flush whatever data might remain stuck within internal buffer,
+*  using ZSTD_compressStream2() with ZSTD_e_flush. `output->pos` will be updated.
+*  Note that, if `output->size` is too small, a single invocation with ZSTD_e_flush might not be enough (return code > 0).
+*  In which case, make some room to receive more compressed data, and call again ZSTD_compressStream2() with ZSTD_e_flush.
+*  You must continue calling ZSTD_compressStream2() with ZSTD_e_flush until it returns 0, at which point you can change the
+*  operation.
+*  note: ZSTD_e_flush will flush as much output as possible, meaning when compressing with multiple threads, it will
+*        block until the flush is complete or the output buffer is full.
+*  @return : 0 if internal buffers are entirely flushed,
+*            >0 if some data still present within internal buffer (the value is minimal estimation of remaining size),
+*            or an error code, which can be tested using ZSTD_isError().
+*
+*  Calling ZSTD_compressStream2() with ZSTD_e_end instructs to finish a frame.
+*  It will perform a flush and write frame epilogue.
+*  The epilogue is required for decoders to consider a frame completed.
+*  flush operation is the same, and follows same rules as calling ZSTD_compressStream2() with ZSTD_e_flush.
+*  You must continue calling ZSTD_compressStream2() with ZSTD_e_end until it returns 0, at which point you are free to
+*  start a new frame.
+*  note: ZSTD_e_end will flush as much output as possible, meaning when compressing with multiple threads, it will
+*        block until the flush is complete or the output buffer is full.
+*  @return : 0 if frame fully completed and fully flushed,
+*            >0 if some data still present within internal buffer (the value is minimal estimation of remaining size),
+*            or an error code, which can be tested using ZSTD_isError().
+*
+* *******************************************************************/
+
+typedef ZSTD_CCtx ZSTD_CStream;  /**< CCtx and CStream are now effectively same object (>= v1.3.0) */
+                                 /* Continue to distinguish them for compatibility with older versions <= v1.2.0 */
+/*===== ZSTD_CStream management functions =====*/
+ZSTDLIB_API ZSTD_CStream* ZSTD_createCStream(void);
+ZSTDLIB_API size_t ZSTD_freeCStream(ZSTD_CStream* zcs);
+
+/*===== Streaming compression functions =====*/
+typedef enum {
+    ZSTD_e_continue=0, /* collect more data, encoder decides when to output compressed result, for optimal compression ratio */
+    ZSTD_e_flush=1,    /* flush any data provided so far,
+                        * it creates (at least) one new block, that can be decoded immediately on reception;
+                        * frame will continue: any future data can still reference previously compressed data, improving compression.
+                        * note : multithreaded compression will block to flush as much output as possible. */
+    ZSTD_e_end=2       /* flush any remaining data _and_ close current frame.
+                        * note that frame is only closed after compressed data is fully flushed (return value == 0).
+                        * After that point, any additional data starts a new frame.
+                        * note : each frame is independent (does not reference any content from previous frame).
+                        : note : multithreaded compression will block to flush as much output as possible. */
+} ZSTD_EndDirective;
+
+/*! ZSTD_compressStream2() :
+ *  Behaves about the same as ZSTD_compressStream, with additional control on end directive.
+ *  - Compression parameters are pushed into CCtx before starting compression, using ZSTD_CCtx_set*()
+ *  - Compression parameters cannot be changed once compression is started (save a list of exceptions in multi-threading mode)
+ *  - output->pos must be <= dstCapacity, input->pos must be <= srcSize
+ *  - output->pos and input->pos will be updated. They are guaranteed to remain below their respective limit.
+ *  - When nbWorkers==0 (default), function is blocking : it completes its job before returning to caller.
+ *  - When nbWorkers>=1, function is non-blocking : it just acquires a copy of input, and distributes jobs to internal worker threads, flush whatever is available,
+ *                                                  and then immediately returns, just indicating that there is some data remaining to be flushed.
+ *                                                  The function nonetheless guarantees forward progress : it will return only after it reads or write at least 1+ byte.
+ *  - Exception : if the first call requests a ZSTD_e_end directive and provides enough dstCapacity, the function delegates to ZSTD_compress2() which is always blocking.
+ *  - @return provides a minimum amount of data remaining to be flushed from internal buffers
+ *            or an error code, which can be tested using ZSTD_isError().
+ *            if @return != 0, flush is not fully completed, there is still some data left within internal buffers.
+ *            This is useful for ZSTD_e_flush, since in this case more flushes are necessary to empty all buffers.
+ *            For ZSTD_e_end, @return == 0 when internal buffers are fully flushed and frame is completed.
+ *  - after a ZSTD_e_end directive, if internal buffer is not fully flushed (@return != 0),
+ *            only ZSTD_e_end or ZSTD_e_flush operations are allowed.
+ *            Before starting a new compression job, or changing compression parameters,
+ *            it is required to fully flush internal buffers.
+ */
+ZSTDLIB_API size_t ZSTD_compressStream2( ZSTD_CCtx* cctx,
+                                         ZSTD_outBuffer* output,
+                                         ZSTD_inBuffer* input,
+                                         ZSTD_EndDirective endOp);
+
+ZSTDLIB_API size_t ZSTD_CStreamInSize(void);    /**< recommended size for input buffer */
+ZSTDLIB_API size_t ZSTD_CStreamOutSize(void);   /**< recommended size for output buffer. Guarantee to successfully flush at least one complete compressed block in all circumstances. */
+
+/*******************************************************************************
+ * This is a legacy streaming API, and can be replaced by ZSTD_CCtx_reset() and
+ * ZSTD_compressStream2(). It is redundant, but is still fully supported.
+ * Advanced parameters and dictionary compression can only be used through the
+ * new API.
+ ******************************************************************************/
+
+/**
+ * Equivalent to:
+ *
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_refCDict(zcs, NULL); // clear the dictionary (if any)
+ *     ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel);
+ */
+ZSTDLIB_API size_t ZSTD_initCStream(ZSTD_CStream* zcs, int compressionLevel);
+/**
+ * Alternative for ZSTD_compressStream2(zcs, output, input, ZSTD_e_continue).
+ * NOTE: The return value is different. ZSTD_compressStream() returns a hint for
+ * the next read size (if non-zero and not an error). ZSTD_compressStream2()
+ * returns the number of bytes left to flush (if non-zero and not an error).
+ */
+ZSTDLIB_API size_t ZSTD_compressStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
+/** Equivalent to ZSTD_compressStream2(zcs, output, &emptyInput, ZSTD_e_flush). */
+ZSTDLIB_API size_t ZSTD_flushStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output);
+/** Equivalent to ZSTD_compressStream2(zcs, output, &emptyInput, ZSTD_e_end). */
+ZSTDLIB_API size_t ZSTD_endStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output);
+
+
+/*-***************************************************************************
+*  Streaming decompression - HowTo
+*
+*  A ZSTD_DStream object is required to track streaming operations.
+*  Use ZSTD_createDStream() and ZSTD_freeDStream() to create/release resources.
+*  ZSTD_DStream objects can be re-used multiple times.
+*
+*  Use ZSTD_initDStream() to start a new decompression operation.
+* @return : recommended first input size
+*  Alternatively, use advanced API to set specific properties.
+*
+*  Use ZSTD_decompressStream() repetitively to consume your input.
+*  The function will update both `pos` fields.
+*  If `input.pos < input.size`, some input has not been consumed.
+*  It's up to the caller to present again remaining data.
+*  The function tries to flush all data decoded immediately, respecting output buffer size.
+*  If `output.pos < output.size`, decoder has flushed everything it could.
+*  But if `output.pos == output.size`, there might be some data left within internal buffers.,
+*  In which case, call ZSTD_decompressStream() again to flush whatever remains in the buffer.
+*  Note : with no additional input provided, amount of data flushed is necessarily <= ZSTD_BLOCKSIZE_MAX.
+* @return : 0 when a frame is completely decoded and fully flushed,
+*        or an error code, which can be tested using ZSTD_isError(),
+*        or any other value > 0, which means there is still some decoding or flushing to do to complete current frame :
+*                                the return value is a suggested next input size (just a hint for better latency)
+*                                that will never request more than the remaining frame size.
+* *******************************************************************************/
+
+typedef ZSTD_DCtx ZSTD_DStream;  /**< DCtx and DStream are now effectively same object (>= v1.3.0) */
+                                 /* For compatibility with versions <= v1.2.0, prefer differentiating them. */
+/*===== ZSTD_DStream management functions =====*/
+ZSTDLIB_API ZSTD_DStream* ZSTD_createDStream(void);
+ZSTDLIB_API size_t ZSTD_freeDStream(ZSTD_DStream* zds);
+
+/*===== Streaming decompression functions =====*/
+
+/* This function is redundant with the advanced API and equivalent to:
+ *
+ *     ZSTD_DCtx_reset(zds);
+ *     ZSTD_DCtx_refDDict(zds, NULL);
+ */
+ZSTDLIB_API size_t ZSTD_initDStream(ZSTD_DStream* zds);
+
+ZSTDLIB_API size_t ZSTD_decompressStream(ZSTD_DStream* zds, ZSTD_outBuffer* output, ZSTD_inBuffer* input);
+
+ZSTDLIB_API size_t ZSTD_DStreamInSize(void);    /*!< recommended size for input buffer */
+ZSTDLIB_API size_t ZSTD_DStreamOutSize(void);   /*!< recommended size for output buffer. Guarantee to successfully flush at least one complete block in all circumstances. */
+
+
+/**************************
+*  Simple dictionary API
+***************************/
+/*! ZSTD_compress_usingDict() :
+ *  Compression at an explicit compression level using a Dictionary.
+ *  A dictionary can be any arbitrary data segment (also called a prefix),
+ *  or a buffer with specified information (see dictBuilder/zdict.h).
+ *  Note : This function loads the dictionary, resulting in significant startup delay.
+ *         It's intended for a dictionary used only once.
+ *  Note 2 : When `dict == NULL || dictSize < 8` no dictionary is used. */
+ZSTDLIB_API size_t ZSTD_compress_usingDict(ZSTD_CCtx* ctx,
+                                           void* dst, size_t dstCapacity,
+                                     const void* src, size_t srcSize,
+                                     const void* dict,size_t dictSize,
+                                           int compressionLevel);
+
+/*! ZSTD_decompress_usingDict() :
+ *  Decompression using a known Dictionary.
+ *  Dictionary must be identical to the one used during compression.
+ *  Note : This function loads the dictionary, resulting in significant startup delay.
+ *         It's intended for a dictionary used only once.
+ *  Note : When `dict == NULL || dictSize < 8` no dictionary is used. */
+ZSTDLIB_API size_t ZSTD_decompress_usingDict(ZSTD_DCtx* dctx,
+                                             void* dst, size_t dstCapacity,
+                                       const void* src, size_t srcSize,
+                                       const void* dict,size_t dictSize);
+
+
+/***********************************
+ *  Bulk processing dictionary API
+ **********************************/
+typedef struct ZSTD_CDict_s ZSTD_CDict;
+
+/*! ZSTD_createCDict() :
+ *  When compressing multiple messages / blocks using the same dictionary, it's recommended to load it only once.
+ *  ZSTD_createCDict() will create a digested dictionary, ready to start future compression operations without startup cost.
+ *  ZSTD_CDict can be created once and shared by multiple threads concurrently, since its usage is read-only.
+ * `dictBuffer` can be released after ZSTD_CDict creation, because its content is copied within CDict.
+ *  Consider experimental function `ZSTD_createCDict_byReference()` if you prefer to not duplicate `dictBuffer` content.
+ *  Note : A ZSTD_CDict can be created from an empty dictBuffer, but it is inefficient when used to compress small data. */
+ZSTDLIB_API ZSTD_CDict* ZSTD_createCDict(const void* dictBuffer, size_t dictSize,
+                                         int compressionLevel);
+
+/*! ZSTD_freeCDict() :
+ *  Function frees memory allocated by ZSTD_createCDict(). */
+ZSTDLIB_API size_t      ZSTD_freeCDict(ZSTD_CDict* CDict);
+
+/*! ZSTD_compress_usingCDict() :
+ *  Compression using a digested Dictionary.
+ *  Recommended when same dictionary is used multiple times.
+ *  Note : compression level is _decided at dictionary creation time_,
+ *     and frame parameters are hardcoded (dictID=yes, contentSize=yes, checksum=no) */
+ZSTDLIB_API size_t ZSTD_compress_usingCDict(ZSTD_CCtx* cctx,
+                                            void* dst, size_t dstCapacity,
+                                      const void* src, size_t srcSize,
+                                      const ZSTD_CDict* cdict);
+
+
+typedef struct ZSTD_DDict_s ZSTD_DDict;
+
+/*! ZSTD_createDDict() :
+ *  Create a digested dictionary, ready to start decompression operation without startup delay.
+ *  dictBuffer can be released after DDict creation, as its content is copied inside DDict. */
+ZSTDLIB_API ZSTD_DDict* ZSTD_createDDict(const void* dictBuffer, size_t dictSize);
+
+/*! ZSTD_freeDDict() :
+ *  Function frees memory allocated with ZSTD_createDDict() */
+ZSTDLIB_API size_t      ZSTD_freeDDict(ZSTD_DDict* ddict);
+
+/*! ZSTD_decompress_usingDDict() :
+ *  Decompression using a digested Dictionary.
+ *  Recommended when same dictionary is used multiple times. */
+ZSTDLIB_API size_t ZSTD_decompress_usingDDict(ZSTD_DCtx* dctx,
+                                              void* dst, size_t dstCapacity,
+                                        const void* src, size_t srcSize,
+                                        const ZSTD_DDict* ddict);
+
+
+/********************************
+ *  Dictionary helper functions
+ *******************************/
+
+/*! ZSTD_getDictID_fromDict() :
+ *  Provides the dictID stored within dictionary.
+ *  if @return == 0, the dictionary is not conformant with Zstandard specification.
+ *  It can still be loaded, but as a content-only dictionary. */
+ZSTDLIB_API unsigned ZSTD_getDictID_fromDict(const void* dict, size_t dictSize);
+
+/*! ZSTD_getDictID_fromDDict() :
+ *  Provides the dictID of the dictionary loaded into `ddict`.
+ *  If @return == 0, the dictionary is not conformant to Zstandard specification, or empty.
+ *  Non-conformant dictionaries can still be loaded, but as content-only dictionaries. */
+ZSTDLIB_API unsigned ZSTD_getDictID_fromDDict(const ZSTD_DDict* ddict);
+
+/*! ZSTD_getDictID_fromFrame() :
+ *  Provides the dictID required to decompressed the frame stored within `src`.
+ *  If @return == 0, the dictID could not be decoded.
+ *  This could for one of the following reasons :
+ *  - The frame does not require a dictionary to be decoded (most common case).
+ *  - The frame was built with dictID intentionally removed. Whatever dictionary is necessary is a hidden information.
+ *    Note : this use case also happens when using a non-conformant dictionary.
+ *  - `srcSize` is too small, and as a result, the frame header could not be decoded (only possible if `srcSize < ZSTD_FRAMEHEADERSIZE_MAX`).
+ *  - This is not a Zstandard frame.
+ *  When identifying the exact failure cause, it's possible to use ZSTD_getFrameHeader(), which will provide a more precise error code. */
+ZSTDLIB_API unsigned ZSTD_getDictID_fromFrame(const void* src, size_t srcSize);
+
+
+/*******************************************************************************
+ * Advanced dictionary and prefix API
+ *
+ * This API allows dictionaries to be used with ZSTD_compress2(),
+ * ZSTD_compressStream2(), and ZSTD_decompress(). Dictionaries are sticky, and
+ * only reset with the context is reset with ZSTD_reset_parameters or
+ * ZSTD_reset_session_and_parameters. Prefixes are single-use.
+ ******************************************************************************/
+
+
+/*! ZSTD_CCtx_loadDictionary() :
+ *  Create an internal CDict from `dict` buffer.
+ *  Decompression will have to use same dictionary.
+ * @result : 0, or an error code (which can be tested with ZSTD_isError()).
+ *  Special: Loading a NULL (or 0-size) dictionary invalidates previous dictionary,
+ *           meaning "return to no-dictionary mode".
+ *  Note 1 : Dictionary is sticky, it will be used for all future compressed frames.
+ *           To return to "no-dictionary" situation, load a NULL dictionary (or reset parameters).
+ *  Note 2 : Loading a dictionary involves building tables.
+ *           It's also a CPU consuming operation, with non-negligible impact on latency.
+ *           Tables are dependent on compression parameters, and for this reason,
+ *           compression parameters can no longer be changed after loading a dictionary.
+ *  Note 3 :`dict` content will be copied internally.
+ *           Use experimental ZSTD_CCtx_loadDictionary_byReference() to reference content instead.
+ *           In such a case, dictionary buffer must outlive its users.
+ *  Note 4 : Use ZSTD_CCtx_loadDictionary_advanced()
+ *           to precisely select how dictionary content must be interpreted. */
+ZSTDLIB_API size_t ZSTD_CCtx_loadDictionary(ZSTD_CCtx* cctx, const void* dict, size_t dictSize);
+
+/*! ZSTD_CCtx_refCDict() :
+ *  Reference a prepared dictionary, to be used for all next compressed frames.
+ *  Note that compression parameters are enforced from within CDict,
+ *  and supersede any compression parameter previously set within CCtx.
+ *  The parameters ignored are labled as "superseded-by-cdict" in the ZSTD_cParameter enum docs.
+ *  The ignored parameters will be used again if the CCtx is returned to no-dictionary mode.
+ *  The dictionary will remain valid for future compressed frames using same CCtx.
+ * @result : 0, or an error code (which can be tested with ZSTD_isError()).
+ *  Special : Referencing a NULL CDict means "return to no-dictionary mode".
+ *  Note 1 : Currently, only one dictionary can be managed.
+ *           Referencing a new dictionary effectively "discards" any previous one.
+ *  Note 2 : CDict is just referenced, its lifetime must outlive its usage within CCtx. */
+ZSTDLIB_API size_t ZSTD_CCtx_refCDict(ZSTD_CCtx* cctx, const ZSTD_CDict* cdict);
+
+/*! ZSTD_CCtx_refPrefix() :
+ *  Reference a prefix (single-usage dictionary) for next compressed frame.
+ *  A prefix is **only used once**. Tables are discarded at end of frame (ZSTD_e_end).
+ *  Decompression will need same prefix to properly regenerate data.
+ *  Compressing with a prefix is similar in outcome as performing a diff and compressing it,
+ *  but performs much faster, especially during decompression (compression speed is tunable with compression level).
+ * @result : 0, or an error code (which can be tested with ZSTD_isError()).
+ *  Special: Adding any prefix (including NULL) invalidates any previous prefix or dictionary
+ *  Note 1 : Prefix buffer is referenced. It **must** outlive compression.
+ *           Its content must remain unmodified during compression.
+ *  Note 2 : If the intention is to diff some large src data blob with some prior version of itself,
+ *           ensure that the window size is large enough to contain the entire source.
+ *           See ZSTD_c_windowLog.
+ *  Note 3 : Referencing a prefix involves building tables, which are dependent on compression parameters.
+ *           It's a CPU consuming operation, with non-negligible impact on latency.
+ *           If there is a need to use the same prefix multiple times, consider loadDictionary instead.
+ *  Note 4 : By default, the prefix is interpreted as raw content (ZSTD_dm_rawContent).
+ *           Use experimental ZSTD_CCtx_refPrefix_advanced() to alter dictionary interpretation. */
+ZSTDLIB_API size_t ZSTD_CCtx_refPrefix(ZSTD_CCtx* cctx,
+                                 const void* prefix, size_t prefixSize);
 
 /*! ZSTD_DCtx_loadDictionary() :
  *  Create an internal DDict from dict buffer,
@@ -910,15 +954,32 @@ ZSTDLIB_API size_t ZSTD_DCtx_refDDict(ZSTD_DCtx* dctx, const ZSTD_DDict* ddict);
 ZSTDLIB_API size_t ZSTD_DCtx_refPrefix(ZSTD_DCtx* dctx,
                                  const void* prefix, size_t prefixSize);
 
-/*! ZSTD_DCtx_reset() :
- *  Return a DCtx to clean state.
- *  Session and parameters can be reset jointly or separately.
- *  Parameters can only be reset when no active frame is being decompressed.
- * @return : 0, or an error code, which can be tested with ZSTD_isError()
- */
-ZSTDLIB_API size_t ZSTD_DCtx_reset(ZSTD_DCtx* dctx, ZSTD_ResetDirective reset);
+/* ===   Memory management   === */
+
+/*! ZSTD_sizeof_*() :
+ *  These functions give the _current_ memory usage of selected object.
+ *  Note that object memory usage can evolve (increase or decrease) over time. */
+ZSTDLIB_API size_t ZSTD_sizeof_CCtx(const ZSTD_CCtx* cctx);
+ZSTDLIB_API size_t ZSTD_sizeof_DCtx(const ZSTD_DCtx* dctx);
+ZSTDLIB_API size_t ZSTD_sizeof_CStream(const ZSTD_CStream* zcs);
+ZSTDLIB_API size_t ZSTD_sizeof_DStream(const ZSTD_DStream* zds);
+ZSTDLIB_API size_t ZSTD_sizeof_CDict(const ZSTD_CDict* cdict);
+ZSTDLIB_API size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
+
+#endif  /* ZSTD_H_235446 */
+
 
+/****************************************************************************************
+ *   ADVANCED AND EXPERIMENTAL FUNCTIONS
+ ****************************************************************************************
+ * The definitions in the following section are considered experimental.
+ * They are provided for advanced scenarios.
+ * They should never be used with a dynamic library, as prototypes may change in the future.
+ * Use them only in association with static linking.
+ * ***************************************************************************************/
 
+#if defined(ZSTD_STATIC_LINKING_ONLY) && !defined(ZSTD_H_ZSTD_STATIC_LINKING_ONLY)
+#define ZSTD_H_ZSTD_STATIC_LINKING_ONLY
 
 /****************************************************************************************
  *   experimental API (static linking only)
@@ -962,7 +1023,7 @@ ZSTDLIB_API size_t ZSTD_DCtx_reset(ZSTD_DCtx* dctx, ZSTD_ResetDirective reset);
 #define ZSTD_WINDOWLOG_LIMIT_DEFAULT 27   /* by default, the streaming decoder will refuse any frame
                                            * requiring larger than (1<<ZSTD_WINDOWLOG_LIMIT_DEFAULT) window size,
                                            * to preserve host's memory from unreasonable requirements.
-                                           * This limit can be overriden using ZSTD_DCtx_setParameter(,ZSTD_d_windowLogMax,).
+                                           * This limit can be overridden using ZSTD_DCtx_setParameter(,ZSTD_d_windowLogMax,).
                                            * The limit does not apply for one-pass decoders (such as ZSTD_decompress()), since no additional memory is allocated */
 
 
@@ -1064,15 +1125,24 @@ typedef enum {
     ZSTD_dictForceCopy     = 2, /* Always copy the dictionary. */
 } ZSTD_dictAttachPref_e;
 
+typedef enum {
+  ZSTD_lcm_auto = 0,          /**< Automatically determine the compression mode based on the compression level.
+                               *   Negative compression levels will be uncompressed, and positive compression
+                               *   levels will be compressed. */
+  ZSTD_lcm_huffman = 1,       /**< Always attempt Huffman compression. Uncompressed literals will still be
+                               *   emitted if Huffman compression is not profitable. */
+  ZSTD_lcm_uncompressed = 2,  /**< Always emit uncompressed literals. */
+} ZSTD_literalCompressionMode_e;
+
 
 /***************************************
 *  Frame size functions
 ***************************************/
 
 /*! ZSTD_findDecompressedSize() :
- *  `src` should point the start of a series of ZSTD encoded and/or skippable frames
+ *  `src` should point to the start of a series of ZSTD encoded and/or skippable frames
  *  `srcSize` must be the _exact_ size of this series
- *       (i.e. there should be a frame boundary exactly at `srcSize` bytes after `src`)
+ *       (i.e. there should be a frame boundary at `src + srcSize`)
  *  @return : - decompressed size of all data in all successive frames
  *            - if the decompressed size cannot be determined: ZSTD_CONTENTSIZE_UNKNOWN
  *            - if an error occurred: ZSTD_CONTENTSIZE_ERROR
@@ -1092,6 +1162,21 @@ typedef enum {
  *            however it does mean that all frame data must be present and valid. */
 ZSTDLIB_API unsigned long long ZSTD_findDecompressedSize(const void* src, size_t srcSize);
 
+/** ZSTD_decompressBound() :
+ *  `src` should point to the start of a series of ZSTD encoded and/or skippable frames
+ *  `srcSize` must be the _exact_ size of this series
+ *       (i.e. there should be a frame boundary at `src + srcSize`)
+ *  @return : - upper-bound for the decompressed size of all data in all successive frames
+ *            - if an error occured: ZSTD_CONTENTSIZE_ERROR
+ *
+ *  note 1  : an error can occur if `src` contains an invalid or incorrectly formatted frame.
+ *  note 2  : the upper-bound is exact when the decompressed size field is available in every ZSTD encoded frame of `src`.
+ *            in this case, `ZSTD_findDecompressedSize` and `ZSTD_decompressBound` return the same value.
+ *  note 3  : when the decompressed size field isn't available, the upper-bound for that frame is calculated by:
+ *              upper-bound = # blocks * min(128 KB, Window_Size)
+ */
+ZSTDLIB_API unsigned long long ZSTD_decompressBound(const void* src, size_t srcSize);
+
 /*! ZSTD_frameHeaderSize() :
  *  srcSize must be >= ZSTD_FRAMEHEADERSIZE_PREFIX.
  * @return : size of the Frame Header,
@@ -1110,7 +1195,7 @@ ZSTDLIB_API size_t ZSTD_frameHeaderSize(const void* src, size_t srcSize);
  *  It will also consider src size to be arbitrarily "large", which is worst case.
  *  If srcSize is known to always be small, ZSTD_estimateCCtxSize_usingCParams() can provide a tighter estimation.
  *  ZSTD_estimateCCtxSize_usingCParams() can be used in tandem with ZSTD_getCParams() to create cParams from compressionLevel.
- *  ZSTD_estimateCCtxSize_usingCCtxParams() can be used in tandem with ZSTD_CCtxParam_setParameter(). Only single-threaded compression is supported. This function will return an error code if ZSTD_c_nbWorkers is >= 1.
+ *  ZSTD_estimateCCtxSize_usingCCtxParams() can be used in tandem with ZSTD_CCtxParams_setParameter(). Only single-threaded compression is supported. This function will return an error code if ZSTD_c_nbWorkers is >= 1.
  *  Note : CCtx size estimation is only correct for single-threaded compression. */
 ZSTDLIB_API size_t ZSTD_estimateCCtxSize(int compressionLevel);
 ZSTDLIB_API size_t ZSTD_estimateCCtxSize_usingCParams(ZSTD_compressionParameters cParams);
@@ -1122,7 +1207,7 @@ ZSTDLIB_API size_t ZSTD_estimateDCtxSize(void);
  *  It will also consider src size to be arbitrarily "large", which is worst case.
  *  If srcSize is known to always be small, ZSTD_estimateCStreamSize_usingCParams() can provide a tighter estimation.
  *  ZSTD_estimateCStreamSize_usingCParams() can be used in tandem with ZSTD_getCParams() to create cParams from compressionLevel.
- *  ZSTD_estimateCStreamSize_usingCCtxParams() can be used in tandem with ZSTD_CCtxParam_setParameter(). Only single-threaded compression is supported. This function will return an error code if ZSTD_c_nbWorkers is >= 1.
+ *  ZSTD_estimateCStreamSize_usingCCtxParams() can be used in tandem with ZSTD_CCtxParams_setParameter(). Only single-threaded compression is supported. This function will return an error code if ZSTD_c_nbWorkers is >= 1.
  *  Note : CStream size estimation is only correct for single-threaded compression.
  *  ZSTD_DStream memory budget depends on window Size.
  *  This information can be passed manually, using ZSTD_estimateDStreamSize,
@@ -1226,22 +1311,26 @@ ZSTDLIB_API ZSTD_DDict* ZSTD_createDDict_advanced(const void* dict, size_t dictS
 ZSTDLIB_API ZSTD_CDict* ZSTD_createCDict_byReference(const void* dictBuffer, size_t dictSize, int compressionLevel);
 
 /*! ZSTD_getCParams() :
-*   @return ZSTD_compressionParameters structure for a selected compression level and estimated srcSize.
-*   `estimatedSrcSize` value is optional, select 0 if not known */
+ * @return ZSTD_compressionParameters structure for a selected compression level and estimated srcSize.
+ * `estimatedSrcSize` value is optional, select 0 if not known */
 ZSTDLIB_API ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, unsigned long long estimatedSrcSize, size_t dictSize);
 
 /*! ZSTD_getParams() :
-*   same as ZSTD_getCParams(), but @return a full `ZSTD_parameters` object instead of sub-component `ZSTD_compressionParameters`.
-*   All fields of `ZSTD_frameParameters` are set to default : contentSize=1, checksum=0, noDictID=0 */
+ *  same as ZSTD_getCParams(), but @return a full `ZSTD_parameters` object instead of sub-component `ZSTD_compressionParameters`.
+ *  All fields of `ZSTD_frameParameters` are set to default : contentSize=1, checksum=0, noDictID=0 */
 ZSTDLIB_API ZSTD_parameters ZSTD_getParams(int compressionLevel, unsigned long long estimatedSrcSize, size_t dictSize);
 
 /*! ZSTD_checkCParams() :
-*   Ensure param values remain within authorized range */
+ *  Ensure param values remain within authorized range.
+ * @return 0 on success, or an error code (can be checked with ZSTD_isError()) */
 ZSTDLIB_API size_t ZSTD_checkCParams(ZSTD_compressionParameters params);
 
 /*! ZSTD_adjustCParams() :
  *  optimize params for a given `srcSize` and `dictSize`.
- *  both values are optional, select `0` if unknown. */
+ * `srcSize` can be unknown, in which case use ZSTD_CONTENTSIZE_UNKNOWN.
+ * `dictSize` must be `0` when there is no dictionary.
+ *  cPar can be invalid : all parameters will be clamped within valid range in the @return struct.
+ *  This function never fails (wide contract) */
 ZSTDLIB_API ZSTD_compressionParameters ZSTD_adjustCParams(ZSTD_compressionParameters cPar, unsigned long long srcSize, size_t dictSize);
 
 /*! ZSTD_compress_advanced() :
@@ -1314,6 +1403,12 @@ ZSTDLIB_API size_t ZSTD_CCtx_refPrefix_advanced(ZSTD_CCtx* cctx, const void* pre
  * See the comments on that enum for an explanation of the feature. */
 #define ZSTD_c_forceAttachDict ZSTD_c_experimentalParam4
 
+/* Controls how the literals are compressed (default is auto).
+ * The value must be of type ZSTD_literalCompressionMode_e.
+ * See ZSTD_literalCompressionMode_t enum definition for details.
+ */
+#define ZSTD_c_literalCompressionMode ZSTD_c_experimentalParam5
+
 /*! ZSTD_CCtx_getParameter() :
  *  Get the requested compression parameter value, selected by enum ZSTD_cParameter,
  *  and store it into int* value.
@@ -1325,10 +1420,10 @@ ZSTDLIB_API size_t ZSTD_CCtx_getParameter(ZSTD_CCtx* cctx, ZSTD_cParameter param
 /*! ZSTD_CCtx_params :
  *  Quick howto :
  *  - ZSTD_createCCtxParams() : Create a ZSTD_CCtx_params structure
- *  - ZSTD_CCtxParam_setParameter() : Push parameters one by one into
- *                                    an existing ZSTD_CCtx_params structure.
- *                                    This is similar to
- *                                    ZSTD_CCtx_setParameter().
+ *  - ZSTD_CCtxParams_setParameter() : Push parameters one by one into
+ *                                     an existing ZSTD_CCtx_params structure.
+ *                                     This is similar to
+ *                                     ZSTD_CCtx_setParameter().
  *  - ZSTD_CCtx_setParametersUsingCCtxParams() : Apply parameters to
  *                                    an existing CCtx.
  *                                    These parameters will be applied to
@@ -1359,20 +1454,20 @@ ZSTDLIB_API size_t ZSTD_CCtxParams_init(ZSTD_CCtx_params* cctxParams, int compre
  */
 ZSTDLIB_API size_t ZSTD_CCtxParams_init_advanced(ZSTD_CCtx_params* cctxParams, ZSTD_parameters params);
 
-/*! ZSTD_CCtxParam_setParameter() :
+/*! ZSTD_CCtxParams_setParameter() :
  *  Similar to ZSTD_CCtx_setParameter.
  *  Set one compression parameter, selected by enum ZSTD_cParameter.
  *  Parameters must be applied to a ZSTD_CCtx using ZSTD_CCtx_setParametersUsingCCtxParams().
  * @result : 0, or an error code (which can be tested with ZSTD_isError()).
  */
-ZSTDLIB_API size_t ZSTD_CCtxParam_setParameter(ZSTD_CCtx_params* params, ZSTD_cParameter param, int value);
+ZSTDLIB_API size_t ZSTD_CCtxParams_setParameter(ZSTD_CCtx_params* params, ZSTD_cParameter param, int value);
 
-/*! ZSTD_CCtxParam_getParameter() :
+/*! ZSTD_CCtxParams_getParameter() :
  * Similar to ZSTD_CCtx_getParameter.
  * Get the requested value of one compression parameter, selected by enum ZSTD_cParameter.
  * @result : 0, or an error code (which can be tested with ZSTD_isError()).
  */
-ZSTDLIB_API size_t ZSTD_CCtxParam_getParameter(ZSTD_CCtx_params* params, ZSTD_cParameter param, int* value);
+ZSTDLIB_API size_t ZSTD_CCtxParams_getParameter(ZSTD_CCtx_params* params, ZSTD_cParameter param, int* value);
 
 /*! ZSTD_CCtx_setParametersUsingCCtxParams() :
  *  Apply a set of ZSTD_CCtx_params to the compression context.
@@ -1415,31 +1510,6 @@ ZSTDLIB_API unsigned ZSTD_isFrame(const void* buffer, size_t size);
  *  it must remain read accessible throughout the lifetime of DDict */
 ZSTDLIB_API ZSTD_DDict* ZSTD_createDDict_byReference(const void* dictBuffer, size_t dictSize);
 
-
-/*! ZSTD_getDictID_fromDict() :
- *  Provides the dictID stored within dictionary.
- *  if @return == 0, the dictionary is not conformant with Zstandard specification.
- *  It can still be loaded, but as a content-only dictionary. */
-ZSTDLIB_API unsigned ZSTD_getDictID_fromDict(const void* dict, size_t dictSize);
-
-/*! ZSTD_getDictID_fromDDict() :
- *  Provides the dictID of the dictionary loaded into `ddict`.
- *  If @return == 0, the dictionary is not conformant to Zstandard specification, or empty.
- *  Non-conformant dictionaries can still be loaded, but as content-only dictionaries. */
-ZSTDLIB_API unsigned ZSTD_getDictID_fromDDict(const ZSTD_DDict* ddict);
-
-/*! ZSTD_getDictID_fromFrame() :
- *  Provides the dictID required to decompressed the frame stored within `src`.
- *  If @return == 0, the dictID could not be decoded.
- *  This could for one of the following reasons :
- *  - The frame does not require a dictionary to be decoded (most common case).
- *  - The frame was built with dictID intentionally removed. Whatever dictionary is necessary is a hidden information.
- *    Note : this use case also happens when using a non-conformant dictionary.
- *  - `srcSize` is too small, and as a result, the frame header could not be decoded (only possible if `srcSize < ZSTD_FRAMEHEADERSIZE_MAX`).
- *  - This is not a Zstandard frame.
- *  When identifying the exact failure cause, it's possible to use ZSTD_getFrameHeader(), which will provide a more precise error code. */
-ZSTDLIB_API unsigned ZSTD_getDictID_fromFrame(const void* src, size_t srcSize);
-
 /*! ZSTD_DCtx_loadDictionary_byReference() :
  *  Same as ZSTD_DCtx_loadDictionary(),
  *  but references `dict` content instead of copying it into `dctx`.
@@ -1501,14 +1571,68 @@ ZSTDLIB_API size_t ZSTD_decompressStream_simpleArgs (
 ********************************************************************/
 
 /*=====   Advanced Streaming compression functions  =====*/
-ZSTDLIB_API size_t ZSTD_initCStream_srcSize(ZSTD_CStream* zcs, int compressionLevel, unsigned long long pledgedSrcSize);   /**< pledgedSrcSize must be correct. If it is not known at init time, use ZSTD_CONTENTSIZE_UNKNOWN. Note that, for compatibility with older programs, "0" also disables frame content size field. It may be enabled in the future. */
-ZSTDLIB_API size_t ZSTD_initCStream_usingDict(ZSTD_CStream* zcs, const void* dict, size_t dictSize, int compressionLevel); /**< creates of an internal CDict (incompatible with static CCtx), except if dict == NULL or dictSize < 8, in which case no dict is used. Note: dict is loaded with ZSTD_dm_auto (treated as a full zstd dictionary if it begins with ZSTD_MAGIC_DICTIONARY, else as raw content) and ZSTD_dlm_byCopy.*/
+/**! ZSTD_initCStream_srcSize() :
+ * This function is deprecated, and equivalent to:
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_refCDict(zcs, NULL); // clear the dictionary (if any)
+ *     ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel);
+ *     ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize);
+ *
+ * pledgedSrcSize must be correct. If it is not known at init time, use
+ * ZSTD_CONTENTSIZE_UNKNOWN. Note that, for compatibility with older programs,
+ * "0" also disables frame content size field. It may be enabled in the future.
+ */
+ZSTDLIB_API size_t ZSTD_initCStream_srcSize(ZSTD_CStream* zcs, int compressionLevel, unsigned long long pledgedSrcSize);
+/**! ZSTD_initCStream_usingDict() :
+ * This function is deprecated, and is equivalent to:
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_setParameter(zcs, ZSTD_c_compressionLevel, compressionLevel);
+ *     ZSTD_CCtx_loadDictionary(zcs, dict, dictSize);
+ *
+ * Creates of an internal CDict (incompatible with static CCtx), except if
+ * dict == NULL or dictSize < 8, in which case no dict is used.
+ * Note: dict is loaded with ZSTD_dm_auto (treated as a full zstd dictionary if
+ * it begins with ZSTD_MAGIC_DICTIONARY, else as raw content) and ZSTD_dlm_byCopy.
+ */
+ZSTDLIB_API size_t ZSTD_initCStream_usingDict(ZSTD_CStream* zcs, const void* dict, size_t dictSize, int compressionLevel);
+/**! ZSTD_initCStream_advanced() :
+ * This function is deprecated, and is approximately equivalent to:
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_setZstdParams(zcs, params); // Set the zstd params and leave the rest as-is
+ *     ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize);
+ *     ZSTD_CCtx_loadDictionary(zcs, dict, dictSize);
+ *
+ * pledgedSrcSize must be correct. If srcSize is not known at init time, use
+ * value ZSTD_CONTENTSIZE_UNKNOWN. dict is loaded with ZSTD_dm_auto and ZSTD_dlm_byCopy.
+ */
 ZSTDLIB_API size_t ZSTD_initCStream_advanced(ZSTD_CStream* zcs, const void* dict, size_t dictSize,
-                                             ZSTD_parameters params, unsigned long long pledgedSrcSize);  /**< pledgedSrcSize must be correct. If srcSize is not known at init time, use value ZSTD_CONTENTSIZE_UNKNOWN. dict is loaded with ZSTD_dm_auto and ZSTD_dlm_byCopy. */
-ZSTDLIB_API size_t ZSTD_initCStream_usingCDict(ZSTD_CStream* zcs, const ZSTD_CDict* cdict);  /**< note : cdict will just be referenced, and must outlive compression session */
-ZSTDLIB_API size_t ZSTD_initCStream_usingCDict_advanced(ZSTD_CStream* zcs, const ZSTD_CDict* cdict, ZSTD_frameParameters fParams, unsigned long long pledgedSrcSize);  /**< same as ZSTD_initCStream_usingCDict(), with control over frame parameters. pledgedSrcSize must be correct. If srcSize is not known at init time, use value ZSTD_CONTENTSIZE_UNKNOWN. */
+                                             ZSTD_parameters params, unsigned long long pledgedSrcSize);
+/**! ZSTD_initCStream_usingCDict() :
+ * This function is deprecated, and equivalent to:
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_refCDict(zcs, cdict);
+ *
+ * note : cdict will just be referenced, and must outlive compression session
+ */
+ZSTDLIB_API size_t ZSTD_initCStream_usingCDict(ZSTD_CStream* zcs, const ZSTD_CDict* cdict);
+/**! ZSTD_initCStream_usingCDict_advanced() :
+ * This function is deprecated, and is approximately equivalent to:
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_setZstdFrameParams(zcs, fParams); // Set the zstd frame params and leave the rest as-is
+ *     ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize);
+ *     ZSTD_CCtx_refCDict(zcs, cdict);
+ *
+ * same as ZSTD_initCStream_usingCDict(), with control over frame parameters.
+ * pledgedSrcSize must be correct. If srcSize is not known at init time, use
+ * value ZSTD_CONTENTSIZE_UNKNOWN.
+ */
+ZSTDLIB_API size_t ZSTD_initCStream_usingCDict_advanced(ZSTD_CStream* zcs, const ZSTD_CDict* cdict, ZSTD_frameParameters fParams, unsigned long long pledgedSrcSize);
 
 /*! ZSTD_resetCStream() :
+ * This function is deprecated, and is equivalent to:
+ *     ZSTD_CCtx_reset(zcs, ZSTD_reset_session_only);
+ *     ZSTD_CCtx_setPledgedSrcSize(zcs, pledgedSrcSize);
+ *
  *  start a new frame, using same parameters from previous frame.
  *  This is typically useful to skip dictionary loading stage, since it will re-use it in-place.
  *  Note that zcs must be init at least once before using ZSTD_resetCStream().
@@ -1555,9 +1679,32 @@ ZSTDLIB_API size_t ZSTD_toFlushNow(ZSTD_CCtx* cctx);
 
 
 /*=====   Advanced Streaming decompression functions  =====*/
-ZSTDLIB_API size_t ZSTD_initDStream_usingDict(ZSTD_DStream* zds, const void* dict, size_t dictSize); /**< note: no dictionary will be used if dict == NULL or dictSize < 8 */
-ZSTDLIB_API size_t ZSTD_initDStream_usingDDict(ZSTD_DStream* zds, const ZSTD_DDict* ddict);  /**< note : ddict is referenced, it must outlive decompression session */
-ZSTDLIB_API size_t ZSTD_resetDStream(ZSTD_DStream* zds);  /**< re-use decompression parameters from previous init; saves dictionary loading */
+/**
+ * This function is deprecated, and is equivalent to:
+ *
+ *     ZSTD_DCtx_reset(zds, ZSTD_reset_session_only);
+ *     ZSTD_DCtx_loadDictionary(zds, dict, dictSize);
+ *
+ * note: no dictionary will be used if dict == NULL or dictSize < 8
+ */
+ZSTDLIB_API size_t ZSTD_initDStream_usingDict(ZSTD_DStream* zds, const void* dict, size_t dictSize);
+/**
+ * This function is deprecated, and is equivalent to:
+ *
+ *     ZSTD_DCtx_reset(zds, ZSTD_reset_session_only);
+ *     ZSTD_DCtx_refDDict(zds, ddict);
+ *
+ * note : ddict is referenced, it must outlive decompression session
+ */
+ZSTDLIB_API size_t ZSTD_initDStream_usingDDict(ZSTD_DStream* zds, const ZSTD_DDict* ddict);
+/**
+ * This function is deprecated, and is equivalent to:
+ *
+ *     ZSTD_DCtx_reset(zds, ZSTD_reset_session_only);
+ *
+ * re-use decompression parameters from previous init; saves dictionary loading
+ */
+ZSTDLIB_API size_t ZSTD_resetDStream(ZSTD_DStream* zds);
 
 
 /*********************************************************************